stm32_adafruit - ADAFRUIT CLD & SD lib

Users » willybayot » Code » stm32_adafruit

ADAFRUIT CLD & SD lib

ff.c@3:d685bfd3ba5f, 2015-01-05 (annotated)

Committer:: willybayot
Date:: Mon Jan 05 16:07:19 2015 +0000
Revision:: 3:d685bfd3ba5f
Parent:: 0:4db361f2e6d5

Who changed what in which revision?

User	Revision	Line number	New contents of line
willybayot	0:4db361f2e6d5	1	/*----------------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2	/ FatFs - FAT file system module R0.10 (C)ChaN, 2013
willybayot	0:4db361f2e6d5	3	/-----------------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4	/ FatFs module is a generic FAT file system module for small embedded systems.
willybayot	0:4db361f2e6d5	5	/ This is a free software that opened for education, research and commercial
willybayot	0:4db361f2e6d5	6	/ developments under license policy of following terms.
willybayot	0:4db361f2e6d5	7	/
willybayot	0:4db361f2e6d5	8	/ Copyright (C) 2013, ChaN, all right reserved.
willybayot	0:4db361f2e6d5	9	/
willybayot	0:4db361f2e6d5	10	/ * The FatFs module is a free software and there is NO WARRANTY.
willybayot	0:4db361f2e6d5	11	/ * No restriction on use. You can use, modify and redistribute it for
willybayot	0:4db361f2e6d5	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
willybayot	0:4db361f2e6d5	13	/ * Redistributions of source code must retain the above copyright notice.
willybayot	0:4db361f2e6d5	14	/
willybayot	0:4db361f2e6d5	15	/-----------------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	16	/ Feb 26,'06 R0.00 Prototype.
willybayot	0:4db361f2e6d5	17	/
willybayot	0:4db361f2e6d5	18	/ Apr 29,'06 R0.01 First stable version.
willybayot	0:4db361f2e6d5	19	/
willybayot	0:4db361f2e6d5	20	/ Jun 01,'06 R0.02 Added FAT12 support.
willybayot	0:4db361f2e6d5	21	/ Removed unbuffered mode.
willybayot	0:4db361f2e6d5	22	/ Fixed a problem on small (<32M) partition.
willybayot	0:4db361f2e6d5	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
willybayot	0:4db361f2e6d5	24	/
willybayot	0:4db361f2e6d5	25	/ Sep 22,'06 R0.03 Added f_rename().
willybayot	0:4db361f2e6d5	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
willybayot	0:4db361f2e6d5	27	/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
willybayot	0:4db361f2e6d5	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
willybayot	0:4db361f2e6d5	29	/
willybayot	0:4db361f2e6d5	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
willybayot	0:4db361f2e6d5	31	/ Changed some interfaces for multiple drive system.
willybayot	0:4db361f2e6d5	32	/ Changed f_mountdrv() to f_mount().
willybayot	0:4db361f2e6d5	33	/ Added f_mkfs().
willybayot	0:4db361f2e6d5	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
willybayot	0:4db361f2e6d5	35	/ Added a capability of extending file size to f_lseek().
willybayot	0:4db361f2e6d5	36	/ Added minimization level 3.
willybayot	0:4db361f2e6d5	37	/ Fixed an endian sensitive code in f_mkfs().
willybayot	0:4db361f2e6d5	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
willybayot	0:4db361f2e6d5	39	/ Added FSINFO support.
willybayot	0:4db361f2e6d5	40	/ Fixed DBCS name can result FR_INVALID_NAME.
willybayot	0:4db361f2e6d5	41	/ Fixed short seek (<= csize) collapses the file object.
willybayot	0:4db361f2e6d5	42	/
willybayot	0:4db361f2e6d5	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
willybayot	0:4db361f2e6d5	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSINFO.
willybayot	0:4db361f2e6d5	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
willybayot	0:4db361f2e6d5	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
willybayot	0:4db361f2e6d5	47	/ Fixed off by one error at FAT sub-type determination.
willybayot	0:4db361f2e6d5	48	/ Fixed btr in f_read() can be mistruncated.
willybayot	0:4db361f2e6d5	49	/ Fixed cached sector is not flushed when create and close without write.
willybayot	0:4db361f2e6d5	50	/
willybayot	0:4db361f2e6d5	51	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
willybayot	0:4db361f2e6d5	52	/ Improved performance of f_lseek() on moving to the same or following cluster.
willybayot	0:4db361f2e6d5	53	/
willybayot	0:4db361f2e6d5	54	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
willybayot	0:4db361f2e6d5	55	/ Added long file name feature.
willybayot	0:4db361f2e6d5	56	/ Added multiple code page feature.
willybayot	0:4db361f2e6d5	57	/ Added re-entrancy for multitask operation.
willybayot	0:4db361f2e6d5	58	/ Added auto cluster size selection to f_mkfs().
willybayot	0:4db361f2e6d5	59	/ Added rewind option to f_readdir().
willybayot	0:4db361f2e6d5	60	/ Changed result code of critical errors.
willybayot	0:4db361f2e6d5	61	/ Renamed string functions to avoid name collision.
willybayot	0:4db361f2e6d5	62	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
willybayot	0:4db361f2e6d5	63	/ Added multiple sector size feature.
willybayot	0:4db361f2e6d5	64	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
willybayot	0:4db361f2e6d5	65	/ Fixed wrong cache control in f_lseek().
willybayot	0:4db361f2e6d5	66	/ Added relative path feature.
willybayot	0:4db361f2e6d5	67	/ Added f_chdir() and f_chdrive().
willybayot	0:4db361f2e6d5	68	/ Added proper case conversion to extended character.
willybayot	0:4db361f2e6d5	69	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
willybayot	0:4db361f2e6d5	70	/ Fixed f_unlink() fails to remove a sub-directory on _FS_RPATH.
willybayot	0:4db361f2e6d5	71	/ Fixed name matching error on the 13 character boundary.
willybayot	0:4db361f2e6d5	72	/ Added a configuration option, _LFN_UNICODE.
willybayot	0:4db361f2e6d5	73	/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
willybayot	0:4db361f2e6d5	74	/
willybayot	0:4db361f2e6d5	75	/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
willybayot	0:4db361f2e6d5	76	/ Added file lock feature. (_FS_SHARE)
willybayot	0:4db361f2e6d5	77	/ Added fast seek feature. (_USE_FASTSEEK)
willybayot	0:4db361f2e6d5	78	/ Changed some types on the API, XCHAR->TCHAR.
willybayot	0:4db361f2e6d5	79	/ Changed .fname in the FILINFO structure on Unicode cfg.
willybayot	0:4db361f2e6d5	80	/ String functions support UTF-8 encoding files on Unicode cfg.
willybayot	0:4db361f2e6d5	81	/ Aug 16,'10 R0.08a Added f_getcwd().
willybayot	0:4db361f2e6d5	82	/ Added sector erase feature. (_USE_ERASE)
willybayot	0:4db361f2e6d5	83	/ Moved file lock semaphore table from fs object to the bss.
willybayot	0:4db361f2e6d5	84	/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
willybayot	0:4db361f2e6d5	85	/ Fixed f_mkfs() creates wrong FAT32 volume.
willybayot	0:4db361f2e6d5	86	/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
willybayot	0:4db361f2e6d5	87	/ f_lseek() reports required table size on creating CLMP.
willybayot	0:4db361f2e6d5	88	/ Extended format syntax of f_printf().
willybayot	0:4db361f2e6d5	89	/ Ignores duplicated directory separators in given path name.
willybayot	0:4db361f2e6d5	90	/
willybayot	0:4db361f2e6d5	91	/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to complete the multiple partition feature.
willybayot	0:4db361f2e6d5	92	/ Added f_fdisk().
willybayot	0:4db361f2e6d5	93	/ Aug 27,'12 R0.09a Changed f_open() and f_opendir() reject null object pointer to avoid crash.
willybayot	0:4db361f2e6d5	94	/ Changed option name _FS_SHARE to _FS_LOCK.
willybayot	0:4db361f2e6d5	95	/ Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
willybayot	0:4db361f2e6d5	96	/ Jan 24,'13 R0.09b Added f_setlabel() and f_getlabel().
willybayot	0:4db361f2e6d5	97	/
willybayot	0:4db361f2e6d5	98	/ Oct 02,'13 R0.10 Added selection of character encoding on the file. (_STRF_ENCODE)
willybayot	0:4db361f2e6d5	99	/ Added f_closedir().
willybayot	0:4db361f2e6d5	100	/ Added forced full FAT scan for f_getfree(). (_FS_NOFSINFO)
willybayot	0:4db361f2e6d5	101	/ Added forced mount feature with changes of f_mount().
willybayot	0:4db361f2e6d5	102	/ Improved behavior of volume auto detection.
willybayot	0:4db361f2e6d5	103	/ Improved write throughput of f_puts() and f_printf().
willybayot	0:4db361f2e6d5	104	/ Changed argument of f_chdrive(), f_mkfs(), disk_read() and disk_write().
willybayot	0:4db361f2e6d5	105	/ Fixed f_write() can be truncated when the file size is close to 4GB.
willybayot	0:4db361f2e6d5	106	/ Fixed f_open(), f_mkdir() and f_setlabel() can return incorrect error code.
willybayot	0:4db361f2e6d5	107	/---------------------------------------------------------------------------*/
willybayot	0:4db361f2e6d5	108
willybayot	0:4db361f2e6d5	109	#include "ff.h" /* Declarations of FatFs API */
willybayot	0:4db361f2e6d5	110	#include "diskio.h" /* Declarations of disk I/O functions */
willybayot	0:4db361f2e6d5	111
willybayot	0:4db361f2e6d5	112
willybayot	0:4db361f2e6d5	113	/*--------------------------------------------------------------------------
willybayot	0:4db361f2e6d5	114
willybayot	0:4db361f2e6d5	115	Module Private Definitions
willybayot	0:4db361f2e6d5	116
willybayot	0:4db361f2e6d5	117	---------------------------------------------------------------------------*/
willybayot	0:4db361f2e6d5	118
willybayot	0:4db361f2e6d5	119	#if _FATFS != 80960 /* Revision ID */
willybayot	0:4db361f2e6d5	120	#error Wrong include file (ff.h).
willybayot	0:4db361f2e6d5	121	#endif
willybayot	0:4db361f2e6d5	122
willybayot	0:4db361f2e6d5	123
willybayot	0:4db361f2e6d5	124	/* Definitions on sector size */
willybayot	0:4db361f2e6d5	125	#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
willybayot	0:4db361f2e6d5	126	#error Wrong sector size.
willybayot	0:4db361f2e6d5	127	#endif
willybayot	0:4db361f2e6d5	128	#if _MAX_SS != 512
willybayot	0:4db361f2e6d5	129	#define SS(fs) ((fs)->ssize) /* Variable sector size */
willybayot	0:4db361f2e6d5	130	#else
willybayot	0:4db361f2e6d5	131	#define SS(fs) 512U /* Fixed sector size */
willybayot	0:4db361f2e6d5	132	#endif
willybayot	0:4db361f2e6d5	133
willybayot	0:4db361f2e6d5	134
willybayot	0:4db361f2e6d5	135	/* Reentrancy related */
willybayot	0:4db361f2e6d5	136	#if _FS_REENTRANT
willybayot	0:4db361f2e6d5	137	#if _USE_LFN == 1
willybayot	0:4db361f2e6d5	138	#error Static LFN work area cannot be used at thread-safe configuration.
willybayot	0:4db361f2e6d5	139	#endif
willybayot	0:4db361f2e6d5	140	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
willybayot	0:4db361f2e6d5	141	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
willybayot	0:4db361f2e6d5	142	#else
willybayot	0:4db361f2e6d5	143	#define ENTER_FF(fs)
willybayot	0:4db361f2e6d5	144	#define LEAVE_FF(fs, res) return res
willybayot	0:4db361f2e6d5	145	#endif
willybayot	0:4db361f2e6d5	146
willybayot	0:4db361f2e6d5	147	#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
willybayot	0:4db361f2e6d5	148
willybayot	0:4db361f2e6d5	149
willybayot	0:4db361f2e6d5	150	/* File access control feature */
willybayot	0:4db361f2e6d5	151	#if _FS_LOCK
willybayot	0:4db361f2e6d5	152	#if _FS_READONLY
willybayot	0:4db361f2e6d5	153	#error _FS_LOCK must be 0 at read-only cfg.
willybayot	0:4db361f2e6d5	154	#endif
willybayot	0:4db361f2e6d5	155	typedef struct {
willybayot	0:4db361f2e6d5	156	FATFS fs; / Object ID 1, volume (NULL:blank entry) */
willybayot	0:4db361f2e6d5	157	DWORD clu; /* Object ID 2, directory */
willybayot	0:4db361f2e6d5	158	WORD idx; /* Object ID 3, directory index */
willybayot	0:4db361f2e6d5	159	WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
willybayot	0:4db361f2e6d5	160	} FILESEM;
willybayot	0:4db361f2e6d5	161	#endif
willybayot	0:4db361f2e6d5	162
willybayot	0:4db361f2e6d5	163
willybayot	0:4db361f2e6d5	164
willybayot	0:4db361f2e6d5	165	/* DBCS code ranges and SBCS extend character conversion table */
willybayot	0:4db361f2e6d5	166
willybayot	0:4db361f2e6d5	167	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
willybayot	0:4db361f2e6d5	168	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
willybayot	0:4db361f2e6d5	169	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
willybayot	0:4db361f2e6d5	170	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
willybayot	0:4db361f2e6d5	171	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
willybayot	0:4db361f2e6d5	172	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
willybayot	0:4db361f2e6d5	173	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
willybayot	0:4db361f2e6d5	174	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
willybayot	0:4db361f2e6d5	175	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
willybayot	0:4db361f2e6d5	176
willybayot	0:4db361f2e6d5	177	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
willybayot	0:4db361f2e6d5	178	#define _DF1S 0x81
willybayot	0:4db361f2e6d5	179	#define _DF1E 0xFE
willybayot	0:4db361f2e6d5	180	#define _DS1S 0x40
willybayot	0:4db361f2e6d5	181	#define _DS1E 0x7E
willybayot	0:4db361f2e6d5	182	#define _DS2S 0x80
willybayot	0:4db361f2e6d5	183	#define _DS2E 0xFE
willybayot	0:4db361f2e6d5	184
willybayot	0:4db361f2e6d5	185	#elif _CODE_PAGE == 949 /* Korean */
willybayot	0:4db361f2e6d5	186	#define _DF1S 0x81
willybayot	0:4db361f2e6d5	187	#define _DF1E 0xFE
willybayot	0:4db361f2e6d5	188	#define _DS1S 0x41
willybayot	0:4db361f2e6d5	189	#define _DS1E 0x5A
willybayot	0:4db361f2e6d5	190	#define _DS2S 0x61
willybayot	0:4db361f2e6d5	191	#define _DS2E 0x7A
willybayot	0:4db361f2e6d5	192	#define _DS3S 0x81
willybayot	0:4db361f2e6d5	193	#define _DS3E 0xFE
willybayot	0:4db361f2e6d5	194
willybayot	0:4db361f2e6d5	195	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
willybayot	0:4db361f2e6d5	196	#define _DF1S 0x81
willybayot	0:4db361f2e6d5	197	#define _DF1E 0xFE
willybayot	0:4db361f2e6d5	198	#define _DS1S 0x40
willybayot	0:4db361f2e6d5	199	#define _DS1E 0x7E
willybayot	0:4db361f2e6d5	200	#define _DS2S 0xA1
willybayot	0:4db361f2e6d5	201	#define _DS2E 0xFE
willybayot	0:4db361f2e6d5	202
willybayot	0:4db361f2e6d5	203	#elif _CODE_PAGE == 437 /* U.S. (OEM) */
willybayot	0:4db361f2e6d5	204	#define _DF1S 0
willybayot	0:4db361f2e6d5	205	#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, \
willybayot	0:4db361f2e6d5	206	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, \
willybayot	0:4db361f2e6d5	207	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, \
willybayot	0:4db361f2e6d5	208	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}
willybayot	0:4db361f2e6d5	209
willybayot	0:4db361f2e6d5	210	#elif _CODE_PAGE == 720 /* Arabic (OEM) */
willybayot	0:4db361f2e6d5	211	#define _DF1S 0
willybayot	0:4db361f2e6d5	212	#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, \
willybayot	0:4db361f2e6d5	213	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, \
willybayot	0:4db361f2e6d5	214	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, \
willybayot	0:4db361f2e6d5	215	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}
willybayot	0:4db361f2e6d5	216
willybayot	0:4db361f2e6d5	217	#elif _CODE_PAGE == 737 /* Greek (OEM) */
willybayot	0:4db361f2e6d5	218	#define _DF1S 0
willybayot	0:4db361f2e6d5	219	#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, \
willybayot	0:4db361f2e6d5	220	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, \
willybayot	0:4db361f2e6d5	221	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, \
willybayot	0:4db361f2e6d5	222	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}
willybayot	0:4db361f2e6d5	223
willybayot	0:4db361f2e6d5	224	#elif _CODE_PAGE == 775 /* Baltic (OEM) */
willybayot	0:4db361f2e6d5	225	#define _DF1S 0
willybayot	0:4db361f2e6d5	226	#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, \
willybayot	0:4db361f2e6d5	227	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, \
willybayot	0:4db361f2e6d5	228	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, \
willybayot	0:4db361f2e6d5	229	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}
willybayot	0:4db361f2e6d5	230
willybayot	0:4db361f2e6d5	231	#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
willybayot	0:4db361f2e6d5	232	#define _DF1S 0
willybayot	0:4db361f2e6d5	233	#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, \
willybayot	0:4db361f2e6d5	234	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, \
willybayot	0:4db361f2e6d5	235	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, \
willybayot	0:4db361f2e6d5	236	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}
willybayot	0:4db361f2e6d5	237
willybayot	0:4db361f2e6d5	238	#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
willybayot	0:4db361f2e6d5	239	#define _DF1S 0
willybayot	0:4db361f2e6d5	240	#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, \
willybayot	0:4db361f2e6d5	241	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, \
willybayot	0:4db361f2e6d5	242	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, \
willybayot	0:4db361f2e6d5	243	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}
willybayot	0:4db361f2e6d5	244
willybayot	0:4db361f2e6d5	245	#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
willybayot	0:4db361f2e6d5	246	#define _DF1S 0
willybayot	0:4db361f2e6d5	247	#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, \
willybayot	0:4db361f2e6d5	248	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, \
willybayot	0:4db361f2e6d5	249	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, \
willybayot	0:4db361f2e6d5	250	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}
willybayot	0:4db361f2e6d5	251
willybayot	0:4db361f2e6d5	252	#elif _CODE_PAGE == 857 /* Turkish (OEM) */
willybayot	0:4db361f2e6d5	253	#define _DF1S 0
willybayot	0:4db361f2e6d5	254	#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, \
willybayot	0:4db361f2e6d5	255	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, \
willybayot	0:4db361f2e6d5	256	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, \
willybayot	0:4db361f2e6d5	257	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}
willybayot	0:4db361f2e6d5	258
willybayot	0:4db361f2e6d5	259	#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
willybayot	0:4db361f2e6d5	260	#define _DF1S 0
willybayot	0:4db361f2e6d5	261	#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, \
willybayot	0:4db361f2e6d5	262	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, \
willybayot	0:4db361f2e6d5	263	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, \
willybayot	0:4db361f2e6d5	264	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}
willybayot	0:4db361f2e6d5	265
willybayot	0:4db361f2e6d5	266	#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
willybayot	0:4db361f2e6d5	267	#define _DF1S 0
willybayot	0:4db361f2e6d5	268	#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, \
willybayot	0:4db361f2e6d5	269	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, \
willybayot	0:4db361f2e6d5	270	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, \
willybayot	0:4db361f2e6d5	271	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}
willybayot	0:4db361f2e6d5	272
willybayot	0:4db361f2e6d5	273	#elif _CODE_PAGE == 866 /* Russian (OEM) */
willybayot	0:4db361f2e6d5	274	#define _DF1S 0
willybayot	0:4db361f2e6d5	275	#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, \
willybayot	0:4db361f2e6d5	276	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, \
willybayot	0:4db361f2e6d5	277	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, \
willybayot	0:4db361f2e6d5	278	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}
willybayot	0:4db361f2e6d5	279
willybayot	0:4db361f2e6d5	280	#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
willybayot	0:4db361f2e6d5	281	#define _DF1S 0
willybayot	0:4db361f2e6d5	282	#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, \
willybayot	0:4db361f2e6d5	283	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, \
willybayot	0:4db361f2e6d5	284	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, \
willybayot	0:4db361f2e6d5	285	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}
willybayot	0:4db361f2e6d5	286
willybayot	0:4db361f2e6d5	287	#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
willybayot	0:4db361f2e6d5	288	#define _DF1S 0
willybayot	0:4db361f2e6d5	289	#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, \
willybayot	0:4db361f2e6d5	290	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, \
willybayot	0:4db361f2e6d5	291	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, \
willybayot	0:4db361f2e6d5	292	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}
willybayot	0:4db361f2e6d5	293
willybayot	0:4db361f2e6d5	294	#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
willybayot	0:4db361f2e6d5	295	#define _DF1S 0
willybayot	0:4db361f2e6d5	296	#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, \
willybayot	0:4db361f2e6d5	297	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, \
willybayot	0:4db361f2e6d5	298	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, \
willybayot	0:4db361f2e6d5	299	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}
willybayot	0:4db361f2e6d5	300
willybayot	0:4db361f2e6d5	301	#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
willybayot	0:4db361f2e6d5	302	#define _DF1S 0
willybayot	0:4db361f2e6d5	303	#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, \
willybayot	0:4db361f2e6d5	304	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, \
willybayot	0:4db361f2e6d5	305	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, \
willybayot	0:4db361f2e6d5	306	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}
willybayot	0:4db361f2e6d5	307
willybayot	0:4db361f2e6d5	308	#elif _CODE_PAGE == 1253 /* Greek (Windows) */
willybayot	0:4db361f2e6d5	309	#define _DF1S 0
willybayot	0:4db361f2e6d5	310	#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, \
willybayot	0:4db361f2e6d5	311	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, \
willybayot	0:4db361f2e6d5	312	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, \
willybayot	0:4db361f2e6d5	313	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}
willybayot	0:4db361f2e6d5	314
willybayot	0:4db361f2e6d5	315	#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
willybayot	0:4db361f2e6d5	316	#define _DF1S 0
willybayot	0:4db361f2e6d5	317	#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, \
willybayot	0:4db361f2e6d5	318	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, \
willybayot	0:4db361f2e6d5	319	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, \
willybayot	0:4db361f2e6d5	320	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}
willybayot	0:4db361f2e6d5	321
willybayot	0:4db361f2e6d5	322	#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
willybayot	0:4db361f2e6d5	323	#define _DF1S 0
willybayot	0:4db361f2e6d5	324	#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, \
willybayot	0:4db361f2e6d5	325	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, \
willybayot	0:4db361f2e6d5	326	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, \
willybayot	0:4db361f2e6d5	327	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}
willybayot	0:4db361f2e6d5	328
willybayot	0:4db361f2e6d5	329	#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
willybayot	0:4db361f2e6d5	330	#define _DF1S 0
willybayot	0:4db361f2e6d5	331	#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, \
willybayot	0:4db361f2e6d5	332	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, \
willybayot	0:4db361f2e6d5	333	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, \
willybayot	0:4db361f2e6d5	334	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}
willybayot	0:4db361f2e6d5	335
willybayot	0:4db361f2e6d5	336	#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
willybayot	0:4db361f2e6d5	337	#define _DF1S 0
willybayot	0:4db361f2e6d5	338	#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, \
willybayot	0:4db361f2e6d5	339	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, \
willybayot	0:4db361f2e6d5	340	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, \
willybayot	0:4db361f2e6d5	341	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}
willybayot	0:4db361f2e6d5	342
willybayot	0:4db361f2e6d5	343	#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
willybayot	0:4db361f2e6d5	344	#define _DF1S 0
willybayot	0:4db361f2e6d5	345	#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, \
willybayot	0:4db361f2e6d5	346	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, \
willybayot	0:4db361f2e6d5	347	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, \
willybayot	0:4db361f2e6d5	348	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}
willybayot	0:4db361f2e6d5	349
willybayot	0:4db361f2e6d5	350	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
willybayot	0:4db361f2e6d5	351	#if _USE_LFN
willybayot	0:4db361f2e6d5	352	#error Cannot use LFN feature without valid code page.
willybayot	0:4db361f2e6d5	353	#endif
willybayot	0:4db361f2e6d5	354	#define _DF1S 0
willybayot	0:4db361f2e6d5	355
willybayot	0:4db361f2e6d5	356	#else
willybayot	0:4db361f2e6d5	357	#error Unknown code page
willybayot	0:4db361f2e6d5	358
willybayot	0:4db361f2e6d5	359	#endif
willybayot	0:4db361f2e6d5	360
willybayot	0:4db361f2e6d5	361
willybayot	0:4db361f2e6d5	362	/* Character code support macros */
willybayot	0:4db361f2e6d5	363	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
willybayot	0:4db361f2e6d5	364	#define IsLower(c) (((c)>='a')&&((c)<='z'))
willybayot	0:4db361f2e6d5	365	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
willybayot	0:4db361f2e6d5	366
willybayot	0:4db361f2e6d5	367	#if _DF1S /* Code page is DBCS */
willybayot	0:4db361f2e6d5	368
willybayot	0:4db361f2e6d5	369	#ifdef _DF2S /* Two 1st byte areas */
willybayot	0:4db361f2e6d5	370	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
willybayot	0:4db361f2e6d5	371	#else /* One 1st byte area */
willybayot	0:4db361f2e6d5	372	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
willybayot	0:4db361f2e6d5	373	#endif
willybayot	0:4db361f2e6d5	374
willybayot	0:4db361f2e6d5	375	#ifdef _DS3S /* Three 2nd byte areas */
willybayot	0:4db361f2e6d5	376	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
willybayot	0:4db361f2e6d5	377	#else /* Two 2nd byte areas */
willybayot	0:4db361f2e6d5	378	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
willybayot	0:4db361f2e6d5	379	#endif
willybayot	0:4db361f2e6d5	380
willybayot	0:4db361f2e6d5	381	#else /* Code page is SBCS */
willybayot	0:4db361f2e6d5	382
willybayot	0:4db361f2e6d5	383	#define IsDBCS1(c) 0
willybayot	0:4db361f2e6d5	384	#define IsDBCS2(c) 0
willybayot	0:4db361f2e6d5	385
willybayot	0:4db361f2e6d5	386	#endif /* _DF1S */
willybayot	0:4db361f2e6d5	387
willybayot	0:4db361f2e6d5	388
willybayot	0:4db361f2e6d5	389	/* Name status flags */
willybayot	0:4db361f2e6d5	390	#define NS 11 /* Index of name status byte in fn[] */
willybayot	0:4db361f2e6d5	391	#define NS_LOSS 0x01 /* Out of 8.3 format */
willybayot	0:4db361f2e6d5	392	#define NS_LFN 0x02 /* Force to create LFN entry */
willybayot	0:4db361f2e6d5	393	#define NS_LAST 0x04 /* Last segment */
willybayot	0:4db361f2e6d5	394	#define NS_BODY 0x08 /* Lower case flag (body) */
willybayot	0:4db361f2e6d5	395	#define NS_EXT 0x10 /* Lower case flag (ext) */
willybayot	0:4db361f2e6d5	396	#define NS_DOT 0x20 /* Dot entry */
willybayot	0:4db361f2e6d5	397
willybayot	0:4db361f2e6d5	398
willybayot	0:4db361f2e6d5	399	/* FAT sub-type boundaries */
willybayot	0:4db361f2e6d5	400	#define MIN_FAT16 4086U /* Minimum number of clusters for FAT16 */
willybayot	0:4db361f2e6d5	401	#define MIN_FAT32 65526U /* Minimum number of clusters for FAT32 */
willybayot	0:4db361f2e6d5	402
willybayot	0:4db361f2e6d5	403
willybayot	0:4db361f2e6d5	404	/* FatFs refers the members in the FAT structures as byte array instead of
willybayot	0:4db361f2e6d5	405	/ structure member because the structure is not binary compatible between
willybayot	0:4db361f2e6d5	406	/ different platforms */
willybayot	0:4db361f2e6d5	407
willybayot	0:4db361f2e6d5	408	#define BS_jmpBoot 0 /* Jump instruction (3) */
willybayot	0:4db361f2e6d5	409	#define BS_OEMName 3 /* OEM name (8) */
willybayot	0:4db361f2e6d5	410	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
willybayot	0:4db361f2e6d5	411	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
willybayot	0:4db361f2e6d5	412	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
willybayot	0:4db361f2e6d5	413	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
willybayot	0:4db361f2e6d5	414	#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
willybayot	0:4db361f2e6d5	415	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
willybayot	0:4db361f2e6d5	416	#define BPB_Media 21 /* Media descriptor (1) */
willybayot	0:4db361f2e6d5	417	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
willybayot	0:4db361f2e6d5	418	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
willybayot	0:4db361f2e6d5	419	#define BPB_NumHeads 26 /* Number of heads (2) */
willybayot	0:4db361f2e6d5	420	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
willybayot	0:4db361f2e6d5	421	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
willybayot	0:4db361f2e6d5	422	#define BS_DrvNum 36 /* Physical drive number (2) */
willybayot	0:4db361f2e6d5	423	#define BS_BootSig 38 /* Extended boot signature (1) */
willybayot	0:4db361f2e6d5	424	#define BS_VolID 39 /* Volume serial number (4) */
willybayot	0:4db361f2e6d5	425	#define BS_VolLab 43 /* Volume label (8) */
willybayot	0:4db361f2e6d5	426	#define BS_FilSysType 54 /* File system type (1) */
willybayot	0:4db361f2e6d5	427	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
willybayot	0:4db361f2e6d5	428	#define BPB_ExtFlags 40 /* Extended flags (2) */
willybayot	0:4db361f2e6d5	429	#define BPB_FSVer 42 /* File system version (2) */
willybayot	0:4db361f2e6d5	430	#define BPB_RootClus 44 /* Root directory first cluster (4) */
willybayot	0:4db361f2e6d5	431	#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
willybayot	0:4db361f2e6d5	432	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
willybayot	0:4db361f2e6d5	433	#define BS_DrvNum32 64 /* Physical drive number (2) */
willybayot	0:4db361f2e6d5	434	#define BS_BootSig32 66 /* Extended boot signature (1) */
willybayot	0:4db361f2e6d5	435	#define BS_VolID32 67 /* Volume serial number (4) */
willybayot	0:4db361f2e6d5	436	#define BS_VolLab32 71 /* Volume label (8) */
willybayot	0:4db361f2e6d5	437	#define BS_FilSysType32 82 /* File system type (1) */
willybayot	0:4db361f2e6d5	438	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
willybayot	0:4db361f2e6d5	439	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
willybayot	0:4db361f2e6d5	440	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
willybayot	0:4db361f2e6d5	441	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
willybayot	0:4db361f2e6d5	442	#define MBR_Table 446 /* MBR: Partition table offset (2) */
willybayot	0:4db361f2e6d5	443	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
willybayot	0:4db361f2e6d5	444	#define BS_55AA 510 /* Boot sector signature (2) */
willybayot	0:4db361f2e6d5	445
willybayot	0:4db361f2e6d5	446	#define DIR_Name 0 /* Short file name (11) */
willybayot	0:4db361f2e6d5	447	#define DIR_Attr 11 /* Attribute (1) */
willybayot	0:4db361f2e6d5	448	#define DIR_NTres 12 /* NT flag (1) */
willybayot	0:4db361f2e6d5	449	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
willybayot	0:4db361f2e6d5	450	#define DIR_CrtTime 14 /* Created time (2) */
willybayot	0:4db361f2e6d5	451	#define DIR_CrtDate 16 /* Created date (2) */
willybayot	0:4db361f2e6d5	452	#define DIR_LstAccDate 18 /* Last accessed date (2) */
willybayot	0:4db361f2e6d5	453	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
willybayot	0:4db361f2e6d5	454	#define DIR_WrtTime 22 /* Modified time (2) */
willybayot	0:4db361f2e6d5	455	#define DIR_WrtDate 24 /* Modified date (2) */
willybayot	0:4db361f2e6d5	456	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
willybayot	0:4db361f2e6d5	457	#define DIR_FileSize 28 /* File size (4) */
willybayot	0:4db361f2e6d5	458	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
willybayot	0:4db361f2e6d5	459	#define LDIR_Attr 11 /* LFN attribute (1) */
willybayot	0:4db361f2e6d5	460	#define LDIR_Type 12 /* LFN type (1) */
willybayot	0:4db361f2e6d5	461	#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
willybayot	0:4db361f2e6d5	462	#define LDIR_FstClusLO 26 /* Filled by zero (0) */
willybayot	0:4db361f2e6d5	463	#define SZ_DIR 32 /* Size of a directory entry */
willybayot	0:4db361f2e6d5	464	#define LLE 0x40 /* Last long entry flag in LDIR_Ord */
willybayot	0:4db361f2e6d5	465	#define DDE 0xE5 /* Deleted directory entry mark in DIR_Name[0] */
willybayot	0:4db361f2e6d5	466	#define NDDE 0x05 /* Replacement of the character collides with DDE */
willybayot	0:4db361f2e6d5	467
willybayot	0:4db361f2e6d5	468
willybayot	0:4db361f2e6d5	469	/------------------------------------------------------------/
willybayot	0:4db361f2e6d5	470	/* Module private work area */
willybayot	0:4db361f2e6d5	471	/------------------------------------------------------------/
willybayot	0:4db361f2e6d5	472	/* Note that uninitialized variables with static duration are
willybayot	0:4db361f2e6d5	473	/ zeroed/nulled at start-up. If not, the compiler or start-up
willybayot	0:4db361f2e6d5	474	/ routine is out of ANSI-C standard.
willybayot	0:4db361f2e6d5	475	*/
willybayot	0:4db361f2e6d5	476
willybayot	0:4db361f2e6d5	477	#if _VOLUMES
willybayot	0:4db361f2e6d5	478	static
willybayot	0:4db361f2e6d5	479	FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
willybayot	0:4db361f2e6d5	480	#else
willybayot	0:4db361f2e6d5	481	#error Number of volumes must not be 0.
willybayot	0:4db361f2e6d5	482	#endif
willybayot	0:4db361f2e6d5	483
willybayot	0:4db361f2e6d5	484	static
willybayot	0:4db361f2e6d5	485	WORD Fsid; /* File system mount ID */
willybayot	0:4db361f2e6d5	486
willybayot	0:4db361f2e6d5	487	#if _FS_RPATH && _VOLUMES >= 2
willybayot	0:4db361f2e6d5	488	static
willybayot	0:4db361f2e6d5	489	BYTE CurrVol; /* Current drive */
willybayot	0:4db361f2e6d5	490	#endif
willybayot	0:4db361f2e6d5	491
willybayot	0:4db361f2e6d5	492	#if _FS_LOCK
willybayot	0:4db361f2e6d5	493	static
willybayot	0:4db361f2e6d5	494	FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
willybayot	0:4db361f2e6d5	495	#endif
willybayot	0:4db361f2e6d5	496
willybayot	0:4db361f2e6d5	497	#if _USE_LFN == 0 /* No LFN feature */
willybayot	0:4db361f2e6d5	498	#define DEF_NAMEBUF BYTE sfn[12]
willybayot	0:4db361f2e6d5	499	#define INIT_BUF(dobj) (dobj).fn = sfn
willybayot	0:4db361f2e6d5	500	#define FREE_BUF()
willybayot	0:4db361f2e6d5	501
willybayot	0:4db361f2e6d5	502	#elif _USE_LFN == 1 /* LFN feature with static working buffer */
willybayot	0:4db361f2e6d5	503	static
willybayot	0:4db361f2e6d5	504	WCHAR LfnBuf[_MAX_LFN+1];
willybayot	0:4db361f2e6d5	505	#define DEF_NAMEBUF BYTE sfn[12]
willybayot	0:4db361f2e6d5	506	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
willybayot	0:4db361f2e6d5	507	#define FREE_BUF()
willybayot	0:4db361f2e6d5	508
willybayot	0:4db361f2e6d5	509	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
willybayot	0:4db361f2e6d5	510	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
willybayot	0:4db361f2e6d5	511	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
willybayot	0:4db361f2e6d5	512	#define FREE_BUF()
willybayot	0:4db361f2e6d5	513
willybayot	0:4db361f2e6d5	514	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
willybayot	0:4db361f2e6d5	515	#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
willybayot	0:4db361f2e6d5	516	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
willybayot	0:4db361f2e6d5	517	if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
willybayot	0:4db361f2e6d5	518	(dobj).lfn = lfn; (dobj).fn = sfn; }
willybayot	0:4db361f2e6d5	519	#define FREE_BUF() ff_memfree(lfn)
willybayot	0:4db361f2e6d5	520
willybayot	0:4db361f2e6d5	521	#else
willybayot	0:4db361f2e6d5	522	#error Wrong LFN configuration.
willybayot	0:4db361f2e6d5	523	#endif
willybayot	0:4db361f2e6d5	524
willybayot	0:4db361f2e6d5	525
willybayot	0:4db361f2e6d5	526	#ifdef _EXCVT
willybayot	0:4db361f2e6d5	527	static
willybayot	0:4db361f2e6d5	528	const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for extended characters */
willybayot	0:4db361f2e6d5	529	#endif
willybayot	0:4db361f2e6d5	530
willybayot	0:4db361f2e6d5	531
willybayot	0:4db361f2e6d5	532
willybayot	0:4db361f2e6d5	533
willybayot	0:4db361f2e6d5	534
willybayot	0:4db361f2e6d5	535
willybayot	0:4db361f2e6d5	536	/*--------------------------------------------------------------------------
willybayot	0:4db361f2e6d5	537
willybayot	0:4db361f2e6d5	538	Module Private Functions
willybayot	0:4db361f2e6d5	539
willybayot	0:4db361f2e6d5	540	---------------------------------------------------------------------------*/
willybayot	0:4db361f2e6d5	541	DWORD clust2sect (FATFS* fs, DWORD clst);
willybayot	0:4db361f2e6d5	542	DWORD get_fat (FATFS* fs, DWORD clst);
willybayot	0:4db361f2e6d5	543
willybayot	0:4db361f2e6d5	544	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	545	FRESULT put_fat (FATFS* fs, DWORD clst, DWORD val);
willybayot	0:4db361f2e6d5	546	#endif /* !_FS_READONLY */
willybayot	0:4db361f2e6d5	547
willybayot	0:4db361f2e6d5	548	#if _USE_LFN
willybayot	0:4db361f2e6d5	549	void gen_numname (BYTE* dst, const BYTE* src, const WCHAR* lfn, WORD seq);
willybayot	0:4db361f2e6d5	550	#endif /* !_USE_LFN */
willybayot	0:4db361f2e6d5	551
willybayot	0:4db361f2e6d5	552	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	553	/* String functions */
willybayot	0:4db361f2e6d5	554	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	555
willybayot	0:4db361f2e6d5	556	/* Copy memory to memory */
willybayot	0:4db361f2e6d5	557	static
willybayot	0:4db361f2e6d5	558	void mem_cpy (void* dst, const void* src, UINT cnt) {
willybayot	0:4db361f2e6d5	559	BYTE d = (BYTE)dst;
willybayot	0:4db361f2e6d5	560	const BYTE s = (const BYTE)src;
willybayot	0:4db361f2e6d5	561
willybayot	0:4db361f2e6d5	562	#if _WORD_ACCESS == 1
willybayot	0:4db361f2e6d5	563	while (cnt >= sizeof (int)) {
willybayot	0:4db361f2e6d5	564	(int)d = (int)s;
willybayot	0:4db361f2e6d5	565	d += sizeof (int); s += sizeof (int);
willybayot	0:4db361f2e6d5	566	cnt -= sizeof (int);
willybayot	0:4db361f2e6d5	567	}
willybayot	0:4db361f2e6d5	568	#endif
willybayot	0:4db361f2e6d5	569	while (cnt--)
willybayot	0:4db361f2e6d5	570	d++ = s++;
willybayot	0:4db361f2e6d5	571	}
willybayot	0:4db361f2e6d5	572
willybayot	0:4db361f2e6d5	573	/* Fill memory */
willybayot	0:4db361f2e6d5	574	static
willybayot	0:4db361f2e6d5	575	void mem_set (void* dst, int val, UINT cnt) {
willybayot	0:4db361f2e6d5	576	BYTE d = (BYTE)dst;
willybayot	0:4db361f2e6d5	577
willybayot	0:4db361f2e6d5	578	while (cnt--)
willybayot	0:4db361f2e6d5	579	*d++ = (BYTE)val;
willybayot	0:4db361f2e6d5	580	}
willybayot	0:4db361f2e6d5	581
willybayot	0:4db361f2e6d5	582	/* Compare memory to memory */
willybayot	0:4db361f2e6d5	583	static
willybayot	0:4db361f2e6d5	584	int mem_cmp (const void* dst, const void* src, UINT cnt) {
willybayot	0:4db361f2e6d5	585	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
willybayot	0:4db361f2e6d5	586	int r = 0;
willybayot	0:4db361f2e6d5	587
willybayot	0:4db361f2e6d5	588	while (cnt-- && (r = d++ - s++) == 0) ;
willybayot	0:4db361f2e6d5	589	return r;
willybayot	0:4db361f2e6d5	590	}
willybayot	0:4db361f2e6d5	591
willybayot	0:4db361f2e6d5	592	/* Check if chr is contained in the string */
willybayot	0:4db361f2e6d5	593	static
willybayot	0:4db361f2e6d5	594	int chk_chr (const char* str, int chr) {
willybayot	0:4db361f2e6d5	595	while (str && str != chr) str++;
willybayot	0:4db361f2e6d5	596	return *str;
willybayot	0:4db361f2e6d5	597	}
willybayot	0:4db361f2e6d5	598
willybayot	0:4db361f2e6d5	599
willybayot	0:4db361f2e6d5	600
willybayot	0:4db361f2e6d5	601
willybayot	0:4db361f2e6d5	602	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	603	/* Request/Release grant to access the volume */
willybayot	0:4db361f2e6d5	604	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	605	#if _FS_REENTRANT
willybayot	0:4db361f2e6d5	606	static
willybayot	0:4db361f2e6d5	607	int lock_fs (
willybayot	0:4db361f2e6d5	608	FATFS* fs /* File system object */
willybayot	0:4db361f2e6d5	609	)
willybayot	0:4db361f2e6d5	610	{
willybayot	0:4db361f2e6d5	611	return ff_req_grant(fs->sobj);
willybayot	0:4db361f2e6d5	612	}
willybayot	0:4db361f2e6d5	613
willybayot	0:4db361f2e6d5	614
willybayot	0:4db361f2e6d5	615	static
willybayot	0:4db361f2e6d5	616	void unlock_fs (
willybayot	0:4db361f2e6d5	617	FATFS* fs, /* File system object */
willybayot	0:4db361f2e6d5	618	FRESULT res /* Result code to be returned */
willybayot	0:4db361f2e6d5	619	)
willybayot	0:4db361f2e6d5	620	{
willybayot	0:4db361f2e6d5	621	if (fs &&
willybayot	0:4db361f2e6d5	622	res != FR_NOT_ENABLED &&
willybayot	0:4db361f2e6d5	623	res != FR_INVALID_DRIVE &&
willybayot	0:4db361f2e6d5	624	res != FR_INVALID_OBJECT &&
willybayot	0:4db361f2e6d5	625	res != FR_TIMEOUT) {
willybayot	0:4db361f2e6d5	626	ff_rel_grant(fs->sobj);
willybayot	0:4db361f2e6d5	627	}
willybayot	0:4db361f2e6d5	628	}
willybayot	0:4db361f2e6d5	629	#endif
willybayot	0:4db361f2e6d5	630
willybayot	0:4db361f2e6d5	631
willybayot	0:4db361f2e6d5	632
willybayot	0:4db361f2e6d5	633
willybayot	0:4db361f2e6d5	634	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	635	/* File lock control functions */
willybayot	0:4db361f2e6d5	636	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	637	#if _FS_LOCK
willybayot	0:4db361f2e6d5	638
willybayot	0:4db361f2e6d5	639	static
willybayot	0:4db361f2e6d5	640	FRESULT chk_lock ( /* Check if the file can be accessed */
willybayot	0:4db361f2e6d5	641	DIR* dp, /* Directory object pointing the file to be checked */
willybayot	0:4db361f2e6d5	642	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
willybayot	0:4db361f2e6d5	643	)
willybayot	0:4db361f2e6d5	644	{
willybayot	0:4db361f2e6d5	645	UINT i, be;
willybayot	0:4db361f2e6d5	646
willybayot	0:4db361f2e6d5	647	/* Search file semaphore table */
willybayot	0:4db361f2e6d5	648	for (i = be = 0; i < _FS_LOCK; i++) {
willybayot	0:4db361f2e6d5	649	if (Files[i].fs) { /* Existing entry */
willybayot	0:4db361f2e6d5	650	if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
willybayot	0:4db361f2e6d5	651	Files[i].clu == dp->sclust &&
willybayot	0:4db361f2e6d5	652	Files[i].idx == dp->index) break;
willybayot	0:4db361f2e6d5	653	} else { /* Blank entry */
willybayot	0:4db361f2e6d5	654	be = 1;
willybayot	0:4db361f2e6d5	655	}
willybayot	0:4db361f2e6d5	656	}
willybayot	0:4db361f2e6d5	657	if (i == _FS_LOCK) /* The object is not opened */
willybayot	0:4db361f2e6d5	658	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
willybayot	0:4db361f2e6d5	659
willybayot	0:4db361f2e6d5	660	/* The object has been opened. Reject any open against writing file and all write mode open */
willybayot	0:4db361f2e6d5	661	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
willybayot	0:4db361f2e6d5	662	}
willybayot	0:4db361f2e6d5	663
willybayot	0:4db361f2e6d5	664
willybayot	0:4db361f2e6d5	665	static
willybayot	0:4db361f2e6d5	666	int enq_lock (void) /* Check if an entry is available for a new object */
willybayot	0:4db361f2e6d5	667	{
willybayot	0:4db361f2e6d5	668	UINT i;
willybayot	0:4db361f2e6d5	669
willybayot	0:4db361f2e6d5	670	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
willybayot	0:4db361f2e6d5	671	return (i == _FS_LOCK) ? 0 : 1;
willybayot	0:4db361f2e6d5	672	}
willybayot	0:4db361f2e6d5	673
willybayot	0:4db361f2e6d5	674
willybayot	0:4db361f2e6d5	675	static
willybayot	0:4db361f2e6d5	676	UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
willybayot	0:4db361f2e6d5	677	DIR* dp, /* Directory object pointing the file to register or increment */
willybayot	0:4db361f2e6d5	678	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
willybayot	0:4db361f2e6d5	679	)
willybayot	0:4db361f2e6d5	680	{
willybayot	0:4db361f2e6d5	681	UINT i;
willybayot	0:4db361f2e6d5	682
willybayot	0:4db361f2e6d5	683
willybayot	0:4db361f2e6d5	684	for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
willybayot	0:4db361f2e6d5	685	if (Files[i].fs == dp->fs &&
willybayot	0:4db361f2e6d5	686	Files[i].clu == dp->sclust &&
willybayot	0:4db361f2e6d5	687	Files[i].idx == dp->index) break;
willybayot	0:4db361f2e6d5	688	}
willybayot	0:4db361f2e6d5	689
willybayot	0:4db361f2e6d5	690	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
willybayot	0:4db361f2e6d5	691	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
willybayot	0:4db361f2e6d5	692	if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
willybayot	0:4db361f2e6d5	693	Files[i].fs = dp->fs;
willybayot	0:4db361f2e6d5	694	Files[i].clu = dp->sclust;
willybayot	0:4db361f2e6d5	695	Files[i].idx = dp->index;
willybayot	0:4db361f2e6d5	696	Files[i].ctr = 0;
willybayot	0:4db361f2e6d5	697	}
willybayot	0:4db361f2e6d5	698
willybayot	0:4db361f2e6d5	699	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
willybayot	0:4db361f2e6d5	700
willybayot	0:4db361f2e6d5	701	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
willybayot	0:4db361f2e6d5	702
willybayot	0:4db361f2e6d5	703	return i + 1;
willybayot	0:4db361f2e6d5	704	}
willybayot	0:4db361f2e6d5	705
willybayot	0:4db361f2e6d5	706
willybayot	0:4db361f2e6d5	707	static
willybayot	0:4db361f2e6d5	708	FRESULT dec_lock ( /* Decrement object open counter */
willybayot	0:4db361f2e6d5	709	UINT i /* Semaphore index (1..) */
willybayot	0:4db361f2e6d5	710	)
willybayot	0:4db361f2e6d5	711	{
willybayot	0:4db361f2e6d5	712	WORD n;
willybayot	0:4db361f2e6d5	713	FRESULT res;
willybayot	0:4db361f2e6d5	714
willybayot	0:4db361f2e6d5	715
willybayot	0:4db361f2e6d5	716	if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
willybayot	0:4db361f2e6d5	717	n = Files[i].ctr;
willybayot	0:4db361f2e6d5	718	if (n == 0x100) n = 0; /* If write mode open, delete the entry */
willybayot	0:4db361f2e6d5	719	if (n) n--; /* Decrement read mode open count */
willybayot	0:4db361f2e6d5	720	Files[i].ctr = n;
willybayot	0:4db361f2e6d5	721	if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
willybayot	0:4db361f2e6d5	722	res = FR_OK;
willybayot	0:4db361f2e6d5	723	} else {
willybayot	0:4db361f2e6d5	724	res = FR_INT_ERR; /* Invalid index nunber */
willybayot	0:4db361f2e6d5	725	}
willybayot	0:4db361f2e6d5	726	return res;
willybayot	0:4db361f2e6d5	727	}
willybayot	0:4db361f2e6d5	728
willybayot	0:4db361f2e6d5	729
willybayot	0:4db361f2e6d5	730	static
willybayot	0:4db361f2e6d5	731	void clear_lock ( /* Clear lock entries of the volume */
willybayot	0:4db361f2e6d5	732	FATFS *fs
willybayot	0:4db361f2e6d5	733	)
willybayot	0:4db361f2e6d5	734	{
willybayot	0:4db361f2e6d5	735	UINT i;
willybayot	0:4db361f2e6d5	736
willybayot	0:4db361f2e6d5	737	for (i = 0; i < _FS_LOCK; i++) {
willybayot	0:4db361f2e6d5	738	if (Files[i].fs == fs) Files[i].fs = 0;
willybayot	0:4db361f2e6d5	739	}
willybayot	0:4db361f2e6d5	740	}
willybayot	0:4db361f2e6d5	741	#endif
willybayot	0:4db361f2e6d5	742
willybayot	0:4db361f2e6d5	743
willybayot	0:4db361f2e6d5	744
willybayot	0:4db361f2e6d5	745
willybayot	0:4db361f2e6d5	746	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	747	/* Move/Flush disk access window in the file system object */
willybayot	0:4db361f2e6d5	748	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	749	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	750	static
willybayot	0:4db361f2e6d5	751	FRESULT sync_window (
willybayot	0:4db361f2e6d5	752	FATFS* fs /* File system object */
willybayot	0:4db361f2e6d5	753	)
willybayot	0:4db361f2e6d5	754	{
willybayot	0:4db361f2e6d5	755	DWORD wsect;
willybayot	0:4db361f2e6d5	756	UINT nf;
willybayot	0:4db361f2e6d5	757
willybayot	0:4db361f2e6d5	758
willybayot	0:4db361f2e6d5	759	if (fs->wflag) { /* Write back the sector if it is dirty */
willybayot	0:4db361f2e6d5	760	wsect = fs->winsect; /* Current sector number */
willybayot	0:4db361f2e6d5	761	if (disk_write(fs->drv, fs->win.d8, wsect, 1))
willybayot	0:4db361f2e6d5	762	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	763	fs->wflag = 0;
willybayot	0:4db361f2e6d5	764	if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
willybayot	0:4db361f2e6d5	765	for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
willybayot	0:4db361f2e6d5	766	wsect += fs->fsize;
willybayot	0:4db361f2e6d5	767	disk_write(fs->drv, fs->win.d8, wsect, 1);
willybayot	0:4db361f2e6d5	768	}
willybayot	0:4db361f2e6d5	769	}
willybayot	0:4db361f2e6d5	770	}
willybayot	0:4db361f2e6d5	771	return FR_OK;
willybayot	0:4db361f2e6d5	772	}
willybayot	0:4db361f2e6d5	773	#endif
willybayot	0:4db361f2e6d5	774
willybayot	0:4db361f2e6d5	775
willybayot	0:4db361f2e6d5	776	static
willybayot	0:4db361f2e6d5	777	FRESULT move_window (
willybayot	0:4db361f2e6d5	778	FATFS* fs, /* File system object */
willybayot	0:4db361f2e6d5	779	DWORD sector /* Sector number to make appearance in the fs->win.d8[] */
willybayot	0:4db361f2e6d5	780	)
willybayot	0:4db361f2e6d5	781	{
willybayot	0:4db361f2e6d5	782	if (sector != fs->winsect) { /* Changed current window */
willybayot	0:4db361f2e6d5	783	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	784	if (sync_window(fs) != FR_OK)
willybayot	0:4db361f2e6d5	785	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	786	#endif
willybayot	0:4db361f2e6d5	787	if (disk_read(fs->drv, fs->win.d8, sector, 1))
willybayot	0:4db361f2e6d5	788	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	789	fs->winsect = sector;
willybayot	0:4db361f2e6d5	790	}
willybayot	0:4db361f2e6d5	791
willybayot	0:4db361f2e6d5	792	return FR_OK;
willybayot	0:4db361f2e6d5	793	}
willybayot	0:4db361f2e6d5	794
willybayot	0:4db361f2e6d5	795
willybayot	0:4db361f2e6d5	796
willybayot	0:4db361f2e6d5	797
willybayot	0:4db361f2e6d5	798	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	799	/* Synchronize file system and strage device */
willybayot	0:4db361f2e6d5	800	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	801	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	802	static
willybayot	0:4db361f2e6d5	803	FRESULT sync_fs ( /* FR_OK: successful, FR_DISK_ERR: failed */
willybayot	0:4db361f2e6d5	804	FATFS* fs /* File system object */
willybayot	0:4db361f2e6d5	805	)
willybayot	0:4db361f2e6d5	806	{
willybayot	0:4db361f2e6d5	807	FRESULT res;
willybayot	0:4db361f2e6d5	808
willybayot	0:4db361f2e6d5	809
willybayot	0:4db361f2e6d5	810	res = sync_window(fs);
willybayot	0:4db361f2e6d5	811	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	812	/* Update FSINFO sector if needed */
willybayot	0:4db361f2e6d5	813	if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
willybayot	0:4db361f2e6d5	814	/* Create FSINFO structure */
willybayot	0:4db361f2e6d5	815	mem_set(fs->win.d8, 0, SS(fs));
willybayot	0:4db361f2e6d5	816	ST_WORD(fs->win.d8+BS_55AA, 0xAA55);
willybayot	0:4db361f2e6d5	817	ST_DWORD(fs->win.d8+FSI_LeadSig, 0x41615252);
willybayot	0:4db361f2e6d5	818	ST_DWORD(fs->win.d8+FSI_StrucSig, 0x61417272);
willybayot	0:4db361f2e6d5	819	ST_DWORD(fs->win.d8+FSI_Free_Count, fs->free_clust);
willybayot	0:4db361f2e6d5	820	ST_DWORD(fs->win.d8+FSI_Nxt_Free, fs->last_clust);
willybayot	0:4db361f2e6d5	821	/* Write it into the FSINFO sector */
willybayot	0:4db361f2e6d5	822	fs->winsect = fs->volbase + 1;
willybayot	0:4db361f2e6d5	823	disk_write(fs->drv, fs->win.d8, fs->winsect, 1);
willybayot	0:4db361f2e6d5	824	fs->fsi_flag = 0;
willybayot	0:4db361f2e6d5	825	}
willybayot	0:4db361f2e6d5	826	/* Make sure that no pending write process in the physical drive */
willybayot	0:4db361f2e6d5	827	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
willybayot	0:4db361f2e6d5	828	res = FR_DISK_ERR;
willybayot	0:4db361f2e6d5	829	}
willybayot	0:4db361f2e6d5	830
willybayot	0:4db361f2e6d5	831	return res;
willybayot	0:4db361f2e6d5	832	}
willybayot	0:4db361f2e6d5	833	#endif
willybayot	0:4db361f2e6d5	834
willybayot	0:4db361f2e6d5	835
willybayot	0:4db361f2e6d5	836
willybayot	0:4db361f2e6d5	837
willybayot	0:4db361f2e6d5	838	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	839	/* Get sector# from cluster# */
willybayot	0:4db361f2e6d5	840	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	841
willybayot	0:4db361f2e6d5	842
willybayot	0:4db361f2e6d5	843	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
willybayot	0:4db361f2e6d5	844	FATFS* fs, /* File system object */
willybayot	0:4db361f2e6d5	845	DWORD clst /* Cluster# to be converted */
willybayot	0:4db361f2e6d5	846	)
willybayot	0:4db361f2e6d5	847	{
willybayot	0:4db361f2e6d5	848	clst -= 2;
willybayot	0:4db361f2e6d5	849	if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
willybayot	0:4db361f2e6d5	850	return clst * fs->csize + fs->database;
willybayot	0:4db361f2e6d5	851	}
willybayot	0:4db361f2e6d5	852
willybayot	0:4db361f2e6d5	853
willybayot	0:4db361f2e6d5	854
willybayot	0:4db361f2e6d5	855
willybayot	0:4db361f2e6d5	856	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	857	/* FAT access - Read value of a FAT entry */
willybayot	0:4db361f2e6d5	858	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	859
willybayot	0:4db361f2e6d5	860
willybayot	0:4db361f2e6d5	861	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
willybayot	0:4db361f2e6d5	862	FATFS* fs, /* File system object */
willybayot	0:4db361f2e6d5	863	DWORD clst /* Cluster# to get the link information */
willybayot	0:4db361f2e6d5	864	)
willybayot	0:4db361f2e6d5	865	{
willybayot	0:4db361f2e6d5	866	UINT wc, bc;
willybayot	0:4db361f2e6d5	867	BYTE *p;
willybayot	0:4db361f2e6d5	868
willybayot	0:4db361f2e6d5	869
willybayot	0:4db361f2e6d5	870	if (clst < 2 \|\| clst >= fs->n_fatent) /* Check range */
willybayot	0:4db361f2e6d5	871	return 1;
willybayot	0:4db361f2e6d5	872
willybayot	0:4db361f2e6d5	873	switch (fs->fs_type) {
willybayot	0:4db361f2e6d5	874	case FS_FAT12 :
willybayot	0:4db361f2e6d5	875	bc = (UINT)clst; bc += bc / 2;
willybayot	0:4db361f2e6d5	876	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
willybayot	0:4db361f2e6d5	877	wc = fs->win.d8[bc % SS(fs)]; bc++;
willybayot	0:4db361f2e6d5	878	if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
willybayot	0:4db361f2e6d5	879	wc \|= fs->win.d8[bc % SS(fs)] << 8;
willybayot	0:4db361f2e6d5	880	return clst & 1 ? wc >> 4 : (wc & 0xFFF);
willybayot	0:4db361f2e6d5	881
willybayot	0:4db361f2e6d5	882	case FS_FAT16 :
willybayot	0:4db361f2e6d5	883	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
willybayot	0:4db361f2e6d5	884	p = &fs->win.d8[clst * 2 % SS(fs)];
willybayot	0:4db361f2e6d5	885	return LD_WORD(p);
willybayot	0:4db361f2e6d5	886
willybayot	0:4db361f2e6d5	887	case FS_FAT32 :
willybayot	0:4db361f2e6d5	888	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
willybayot	0:4db361f2e6d5	889	p = &fs->win.d8[clst * 4 % SS(fs)];
willybayot	0:4db361f2e6d5	890	return LD_DWORD(p) & 0x0FFFFFFF;
willybayot	0:4db361f2e6d5	891	}
willybayot	0:4db361f2e6d5	892
willybayot	0:4db361f2e6d5	893	return 0xFFFFFFFF; /* An error occurred at the disk I/O layer */
willybayot	0:4db361f2e6d5	894	}
willybayot	0:4db361f2e6d5	895
willybayot	0:4db361f2e6d5	896
willybayot	0:4db361f2e6d5	897
willybayot	0:4db361f2e6d5	898
willybayot	0:4db361f2e6d5	899	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	900	/* FAT access - Change value of a FAT entry */
willybayot	0:4db361f2e6d5	901	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	902	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	903
willybayot	0:4db361f2e6d5	904	FRESULT put_fat (
willybayot	0:4db361f2e6d5	905	FATFS* fs, /* File system object */
willybayot	0:4db361f2e6d5	906	DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
willybayot	0:4db361f2e6d5	907	DWORD val /* New value to mark the cluster */
willybayot	0:4db361f2e6d5	908	)
willybayot	0:4db361f2e6d5	909	{
willybayot	0:4db361f2e6d5	910	UINT bc;
willybayot	0:4db361f2e6d5	911	BYTE *p;
willybayot	0:4db361f2e6d5	912	FRESULT res;
willybayot	0:4db361f2e6d5	913
willybayot	0:4db361f2e6d5	914
willybayot	0:4db361f2e6d5	915	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
willybayot	0:4db361f2e6d5	916	res = FR_INT_ERR;
willybayot	0:4db361f2e6d5	917
willybayot	0:4db361f2e6d5	918	} else {
willybayot	0:4db361f2e6d5	919	switch (fs->fs_type) {
willybayot	0:4db361f2e6d5	920	case FS_FAT12 :
willybayot	0:4db361f2e6d5	921	bc = (UINT)clst; bc += bc / 2;
willybayot	0:4db361f2e6d5	922	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
willybayot	0:4db361f2e6d5	923	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	924	p = &fs->win.d8[bc % SS(fs)];
willybayot	0:4db361f2e6d5	925	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
willybayot	0:4db361f2e6d5	926	bc++;
willybayot	0:4db361f2e6d5	927	fs->wflag = 1;
willybayot	0:4db361f2e6d5	928	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
willybayot	0:4db361f2e6d5	929	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	930	p = &fs->win.d8[bc % SS(fs)];
willybayot	0:4db361f2e6d5	931	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
willybayot	0:4db361f2e6d5	932	break;
willybayot	0:4db361f2e6d5	933
willybayot	0:4db361f2e6d5	934	case FS_FAT16 :
willybayot	0:4db361f2e6d5	935	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
willybayot	0:4db361f2e6d5	936	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	937	p = &fs->win.d8[clst * 2 % SS(fs)];
willybayot	0:4db361f2e6d5	938	ST_WORD(p, (WORD)val);
willybayot	0:4db361f2e6d5	939	break;
willybayot	0:4db361f2e6d5	940
willybayot	0:4db361f2e6d5	941	case FS_FAT32 :
willybayot	0:4db361f2e6d5	942	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
willybayot	0:4db361f2e6d5	943	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	944	p = &fs->win.d8[clst * 4 % SS(fs)];
willybayot	0:4db361f2e6d5	945	val \|= LD_DWORD(p) & 0xF0000000;
willybayot	0:4db361f2e6d5	946	ST_DWORD(p, val);
willybayot	0:4db361f2e6d5	947	break;
willybayot	0:4db361f2e6d5	948
willybayot	0:4db361f2e6d5	949	default :
willybayot	0:4db361f2e6d5	950	res = FR_INT_ERR;
willybayot	0:4db361f2e6d5	951	}
willybayot	0:4db361f2e6d5	952	fs->wflag = 1;
willybayot	0:4db361f2e6d5	953	}
willybayot	0:4db361f2e6d5	954
willybayot	0:4db361f2e6d5	955	return res;
willybayot	0:4db361f2e6d5	956	}
willybayot	0:4db361f2e6d5	957	#endif /* !_FS_READONLY */
willybayot	0:4db361f2e6d5	958
willybayot	0:4db361f2e6d5	959
willybayot	0:4db361f2e6d5	960
willybayot	0:4db361f2e6d5	961
willybayot	0:4db361f2e6d5	962	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	963	/* FAT handling - Remove a cluster chain */
willybayot	0:4db361f2e6d5	964	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	965	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	966	static
willybayot	0:4db361f2e6d5	967	FRESULT remove_chain (
willybayot	0:4db361f2e6d5	968	FATFS* fs, /* File system object */
willybayot	0:4db361f2e6d5	969	DWORD clst /* Cluster# to remove a chain from */
willybayot	0:4db361f2e6d5	970	)
willybayot	0:4db361f2e6d5	971	{
willybayot	0:4db361f2e6d5	972	FRESULT res;
willybayot	0:4db361f2e6d5	973	DWORD nxt;
willybayot	0:4db361f2e6d5	974	#if _USE_ERASE
willybayot	0:4db361f2e6d5	975	DWORD scl = clst, ecl = clst, rt[2];
willybayot	0:4db361f2e6d5	976	#endif
willybayot	0:4db361f2e6d5	977
willybayot	0:4db361f2e6d5	978	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check range */
willybayot	0:4db361f2e6d5	979	res = FR_INT_ERR;
willybayot	0:4db361f2e6d5	980
willybayot	0:4db361f2e6d5	981	} else {
willybayot	0:4db361f2e6d5	982	res = FR_OK;
willybayot	0:4db361f2e6d5	983	while (clst < fs->n_fatent) { /* Not a last link? */
willybayot	0:4db361f2e6d5	984	nxt = get_fat(fs, clst); /* Get cluster status */
willybayot	0:4db361f2e6d5	985	if (nxt == 0) break; /* Empty cluster? */
willybayot	0:4db361f2e6d5	986	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
willybayot	0:4db361f2e6d5	987	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
willybayot	0:4db361f2e6d5	988	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
willybayot	0:4db361f2e6d5	989	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	990	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
willybayot	0:4db361f2e6d5	991	fs->free_clust++;
willybayot	0:4db361f2e6d5	992	fs->fsi_flag \|= 1;
willybayot	0:4db361f2e6d5	993	}
willybayot	0:4db361f2e6d5	994	#if _USE_ERASE
willybayot	0:4db361f2e6d5	995	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
willybayot	0:4db361f2e6d5	996	ecl = nxt;
willybayot	0:4db361f2e6d5	997	} else { /* End of contiguous clusters */
willybayot	0:4db361f2e6d5	998	rt[0] = clust2sect(fs, scl); /* Start sector */
willybayot	0:4db361f2e6d5	999	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
willybayot	0:4db361f2e6d5	1000	disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, rt); /* Erase the block */
willybayot	0:4db361f2e6d5	1001	scl = ecl = nxt;
willybayot	0:4db361f2e6d5	1002	}
willybayot	0:4db361f2e6d5	1003	#endif
willybayot	0:4db361f2e6d5	1004	clst = nxt; /* Next cluster */
willybayot	0:4db361f2e6d5	1005	}
willybayot	0:4db361f2e6d5	1006	}
willybayot	0:4db361f2e6d5	1007
willybayot	0:4db361f2e6d5	1008	return res;
willybayot	0:4db361f2e6d5	1009	}
willybayot	0:4db361f2e6d5	1010	#endif
willybayot	0:4db361f2e6d5	1011
willybayot	0:4db361f2e6d5	1012
willybayot	0:4db361f2e6d5	1013
willybayot	0:4db361f2e6d5	1014
willybayot	0:4db361f2e6d5	1015	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1016	/* FAT handling - Stretch or Create a cluster chain */
willybayot	0:4db361f2e6d5	1017	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1018	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	1019	static
willybayot	0:4db361f2e6d5	1020	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
willybayot	0:4db361f2e6d5	1021	FATFS* fs, /* File system object */
willybayot	0:4db361f2e6d5	1022	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
willybayot	0:4db361f2e6d5	1023	)
willybayot	0:4db361f2e6d5	1024	{
willybayot	0:4db361f2e6d5	1025	DWORD cs, ncl, scl;
willybayot	0:4db361f2e6d5	1026	FRESULT res;
willybayot	0:4db361f2e6d5	1027
willybayot	0:4db361f2e6d5	1028
willybayot	0:4db361f2e6d5	1029	if (clst == 0) { /* Create a new chain */
willybayot	0:4db361f2e6d5	1030	scl = fs->last_clust; /* Get suggested start point */
willybayot	0:4db361f2e6d5	1031	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
willybayot	0:4db361f2e6d5	1032	}
willybayot	0:4db361f2e6d5	1033	else { /* Stretch the current chain */
willybayot	0:4db361f2e6d5	1034	cs = get_fat(fs, clst); /* Check the cluster status */
willybayot	0:4db361f2e6d5	1035	if (cs < 2) return 1; /* It is an invalid cluster */
willybayot	0:4db361f2e6d5	1036	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
willybayot	0:4db361f2e6d5	1037	scl = clst;
willybayot	0:4db361f2e6d5	1038	}
willybayot	0:4db361f2e6d5	1039
willybayot	0:4db361f2e6d5	1040	ncl = scl; /* Start cluster */
willybayot	0:4db361f2e6d5	1041	for (;;) {
willybayot	0:4db361f2e6d5	1042	ncl++; /* Next cluster */
willybayot	0:4db361f2e6d5	1043	if (ncl >= fs->n_fatent) { /* Wrap around */
willybayot	0:4db361f2e6d5	1044	ncl = 2;
willybayot	0:4db361f2e6d5	1045	if (ncl > scl) return 0; /* No free cluster */
willybayot	0:4db361f2e6d5	1046	}
willybayot	0:4db361f2e6d5	1047	cs = get_fat(fs, ncl); /* Get the cluster status */
willybayot	0:4db361f2e6d5	1048	if (cs == 0) break; /* Found a free cluster */
willybayot	0:4db361f2e6d5	1049	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
willybayot	0:4db361f2e6d5	1050	return cs;
willybayot	0:4db361f2e6d5	1051	if (ncl == scl) return 0; /* No free cluster */
willybayot	0:4db361f2e6d5	1052	}
willybayot	0:4db361f2e6d5	1053
willybayot	0:4db361f2e6d5	1054	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
willybayot	0:4db361f2e6d5	1055	if (res == FR_OK && clst != 0) {
willybayot	0:4db361f2e6d5	1056	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
willybayot	0:4db361f2e6d5	1057	}
willybayot	0:4db361f2e6d5	1058	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	1059	fs->last_clust = ncl; /* Update FSINFO */
willybayot	0:4db361f2e6d5	1060	if (fs->free_clust != 0xFFFFFFFF) {
willybayot	0:4db361f2e6d5	1061	fs->free_clust--;
willybayot	0:4db361f2e6d5	1062	fs->fsi_flag \|= 1;
willybayot	0:4db361f2e6d5	1063	}
willybayot	0:4db361f2e6d5	1064	} else {
willybayot	0:4db361f2e6d5	1065	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
willybayot	0:4db361f2e6d5	1066	}
willybayot	0:4db361f2e6d5	1067
willybayot	0:4db361f2e6d5	1068	return ncl; /* Return new cluster number or error code */
willybayot	0:4db361f2e6d5	1069	}
willybayot	0:4db361f2e6d5	1070	#endif /* !_FS_READONLY */
willybayot	0:4db361f2e6d5	1071
willybayot	0:4db361f2e6d5	1072
willybayot	0:4db361f2e6d5	1073
willybayot	0:4db361f2e6d5	1074
willybayot	0:4db361f2e6d5	1075	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1076	/* FAT handling - Convert offset into cluster with link map table */
willybayot	0:4db361f2e6d5	1077	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1078
willybayot	0:4db361f2e6d5	1079	#if _USE_FASTSEEK
willybayot	0:4db361f2e6d5	1080	static
willybayot	0:4db361f2e6d5	1081	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
willybayot	0:4db361f2e6d5	1082	FIL* fp, /* Pointer to the file object */
willybayot	0:4db361f2e6d5	1083	DWORD ofs /* File offset to be converted to cluster# */
willybayot	0:4db361f2e6d5	1084	)
willybayot	0:4db361f2e6d5	1085	{
willybayot	0:4db361f2e6d5	1086	DWORD cl, ncl, *tbl;
willybayot	0:4db361f2e6d5	1087
willybayot	0:4db361f2e6d5	1088
willybayot	0:4db361f2e6d5	1089	tbl = fp->cltbl + 1; /* Top of CLMT */
willybayot	0:4db361f2e6d5	1090	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
willybayot	0:4db361f2e6d5	1091	for (;;) {
willybayot	0:4db361f2e6d5	1092	ncl = tbl++; / Number of cluters in the fragment */
willybayot	0:4db361f2e6d5	1093	if (!ncl) return 0; /* End of table? (error) */
willybayot	0:4db361f2e6d5	1094	if (cl < ncl) break; /* In this fragment? */
willybayot	0:4db361f2e6d5	1095	cl -= ncl; tbl++; /* Next fragment */
willybayot	0:4db361f2e6d5	1096	}
willybayot	0:4db361f2e6d5	1097	return cl + tbl; / Return the cluster number */
willybayot	0:4db361f2e6d5	1098	}
willybayot	0:4db361f2e6d5	1099	#endif /* _USE_FASTSEEK */
willybayot	0:4db361f2e6d5	1100
willybayot	0:4db361f2e6d5	1101
willybayot	0:4db361f2e6d5	1102
willybayot	0:4db361f2e6d5	1103
willybayot	0:4db361f2e6d5	1104	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1105	/* Directory handling - Set directory index */
willybayot	0:4db361f2e6d5	1106	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1107
willybayot	0:4db361f2e6d5	1108	static
willybayot	0:4db361f2e6d5	1109	FRESULT dir_sdi (
willybayot	0:4db361f2e6d5	1110	DIR* dp, /* Pointer to directory object */
willybayot	0:4db361f2e6d5	1111	WORD idx /* Index of directory table */
willybayot	0:4db361f2e6d5	1112	)
willybayot	0:4db361f2e6d5	1113	{
willybayot	0:4db361f2e6d5	1114	DWORD clst;
willybayot	0:4db361f2e6d5	1115	WORD ic;
willybayot	0:4db361f2e6d5	1116
willybayot	0:4db361f2e6d5	1117
willybayot	0:4db361f2e6d5	1118	dp->index = idx;
willybayot	0:4db361f2e6d5	1119	clst = dp->sclust;
willybayot	0:4db361f2e6d5	1120	if (clst == 1 \|\| clst >= dp->fs->n_fatent) /* Check start cluster range */
willybayot	0:4db361f2e6d5	1121	return FR_INT_ERR;
willybayot	0:4db361f2e6d5	1122	if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
willybayot	0:4db361f2e6d5	1123	clst = dp->fs->dirbase;
willybayot	0:4db361f2e6d5	1124
willybayot	0:4db361f2e6d5	1125	if (clst == 0) { /* Static table (root-directory in FAT12/16) */
willybayot	0:4db361f2e6d5	1126	dp->clust = clst;
willybayot	0:4db361f2e6d5	1127	if (idx >= dp->fs->n_rootdir) /* Index is out of range */
willybayot	0:4db361f2e6d5	1128	return FR_INT_ERR;
willybayot	0:4db361f2e6d5	1129	dp->sect = dp->fs->dirbase + idx / (SS(dp->fs) / SZ_DIR); /* Sector# */
willybayot	0:4db361f2e6d5	1130	}
willybayot	0:4db361f2e6d5	1131	else { /* Dynamic table (sub-dirs or root-directory in FAT32) */
willybayot	0:4db361f2e6d5	1132	ic = SS(dp->fs) / SZ_DIR * dp->fs->csize; /* Entries per cluster */
willybayot	0:4db361f2e6d5	1133	while (idx >= ic) { /* Follow cluster chain */
willybayot	0:4db361f2e6d5	1134	clst = get_fat(dp->fs, clst); /* Get next cluster */
willybayot	0:4db361f2e6d5	1135	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
willybayot	0:4db361f2e6d5	1136	if (clst < 2 \|\| clst >= dp->fs->n_fatent) /* Reached to end of table or int error */
willybayot	0:4db361f2e6d5	1137	return FR_INT_ERR;
willybayot	0:4db361f2e6d5	1138	idx -= ic;
willybayot	0:4db361f2e6d5	1139	}
willybayot	0:4db361f2e6d5	1140	dp->clust = clst;
willybayot	0:4db361f2e6d5	1141	dp->sect = clust2sect(dp->fs, clst) + idx / (SS(dp->fs) / SZ_DIR); /* Sector# */
willybayot	0:4db361f2e6d5	1142	}
willybayot	0:4db361f2e6d5	1143
willybayot	0:4db361f2e6d5	1144	dp->dir = dp->fs->win.d8 + (idx % (SS(dp->fs) / SZ_DIR)) * SZ_DIR; /* Ptr to the entry in the sector */
willybayot	0:4db361f2e6d5	1145
willybayot	0:4db361f2e6d5	1146	return FR_OK; /* Seek succeeded */
willybayot	0:4db361f2e6d5	1147	}
willybayot	0:4db361f2e6d5	1148
willybayot	0:4db361f2e6d5	1149
willybayot	0:4db361f2e6d5	1150
willybayot	0:4db361f2e6d5	1151
willybayot	0:4db361f2e6d5	1152	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1153	/* Directory handling - Move directory table index next */
willybayot	0:4db361f2e6d5	1154	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1155
willybayot	0:4db361f2e6d5	1156	static
willybayot	0:4db361f2e6d5	1157	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
willybayot	0:4db361f2e6d5	1158	DIR* dp, /* Pointer to the directory object */
willybayot	0:4db361f2e6d5	1159	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
willybayot	0:4db361f2e6d5	1160	)
willybayot	0:4db361f2e6d5	1161	{
willybayot	0:4db361f2e6d5	1162	DWORD clst;
willybayot	0:4db361f2e6d5	1163	WORD i;
willybayot	0:4db361f2e6d5	1164
willybayot	0:4db361f2e6d5	1165
willybayot	0:4db361f2e6d5	1166	i = dp->index + 1;
willybayot	0:4db361f2e6d5	1167	if (!i \|\| !dp->sect) /* Report EOT when index has reached 65535 */
willybayot	0:4db361f2e6d5	1168	return FR_NO_FILE;
willybayot	0:4db361f2e6d5	1169
willybayot	0:4db361f2e6d5	1170	if (!(i % (SS(dp->fs) / SZ_DIR))) { /* Sector changed? */
willybayot	0:4db361f2e6d5	1171	dp->sect++; /* Next sector */
willybayot	0:4db361f2e6d5	1172
willybayot	0:4db361f2e6d5	1173	if (!dp->clust) { /* Static table */
willybayot	0:4db361f2e6d5	1174	if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
willybayot	0:4db361f2e6d5	1175	return FR_NO_FILE;
willybayot	0:4db361f2e6d5	1176	}
willybayot	0:4db361f2e6d5	1177	else { /* Dynamic table */
willybayot	0:4db361f2e6d5	1178	if (((i / (SS(dp->fs) / SZ_DIR)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
willybayot	0:4db361f2e6d5	1179	clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
willybayot	0:4db361f2e6d5	1180	if (clst <= 1) return FR_INT_ERR;
willybayot	0:4db361f2e6d5	1181	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	1182	if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
willybayot	0:4db361f2e6d5	1183	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	1184	BYTE c;
willybayot	0:4db361f2e6d5	1185	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
willybayot	0:4db361f2e6d5	1186	clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
willybayot	0:4db361f2e6d5	1187	if (clst == 0) return FR_DENIED; /* No free cluster */
willybayot	0:4db361f2e6d5	1188	if (clst == 1) return FR_INT_ERR;
willybayot	0:4db361f2e6d5	1189	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	1190	/* Clean-up stretched table */
willybayot	0:4db361f2e6d5	1191	if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
willybayot	0:4db361f2e6d5	1192	mem_set(dp->fs->win.d8, 0, SS(dp->fs)); /* Clear window buffer */
willybayot	0:4db361f2e6d5	1193	dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
willybayot	0:4db361f2e6d5	1194	for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
willybayot	0:4db361f2e6d5	1195	dp->fs->wflag = 1;
willybayot	0:4db361f2e6d5	1196	if (sync_window(dp->fs)) return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	1197	dp->fs->winsect++;
willybayot	0:4db361f2e6d5	1198	}
willybayot	0:4db361f2e6d5	1199	dp->fs->winsect -= c; /* Rewind window offset */
willybayot	0:4db361f2e6d5	1200	#else
willybayot	0:4db361f2e6d5	1201	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
willybayot	0:4db361f2e6d5	1202	return FR_NO_FILE; /* Report EOT */
willybayot	0:4db361f2e6d5	1203	#endif
willybayot	0:4db361f2e6d5	1204	}
willybayot	0:4db361f2e6d5	1205	dp->clust = clst; /* Initialize data for new cluster */
willybayot	0:4db361f2e6d5	1206	dp->sect = clust2sect(dp->fs, clst);
willybayot	0:4db361f2e6d5	1207	}
willybayot	0:4db361f2e6d5	1208	}
willybayot	0:4db361f2e6d5	1209	}
willybayot	0:4db361f2e6d5	1210
willybayot	0:4db361f2e6d5	1211	dp->index = i; /* Current index */
willybayot	0:4db361f2e6d5	1212	dp->dir = dp->fs->win.d8 + (i % (SS(dp->fs) / SZ_DIR)) * SZ_DIR; /* Current entry in the window */
willybayot	0:4db361f2e6d5	1213
willybayot	0:4db361f2e6d5	1214	return FR_OK;
willybayot	0:4db361f2e6d5	1215	}
willybayot	0:4db361f2e6d5	1216
willybayot	0:4db361f2e6d5	1217
willybayot	0:4db361f2e6d5	1218
willybayot	0:4db361f2e6d5	1219
willybayot	0:4db361f2e6d5	1220	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1221	/* Directory handling - Reserve directory entry */
willybayot	0:4db361f2e6d5	1222	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1223
willybayot	0:4db361f2e6d5	1224	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	1225	static
willybayot	0:4db361f2e6d5	1226	FRESULT dir_alloc (
willybayot	0:4db361f2e6d5	1227	DIR* dp, /* Pointer to the directory object */
willybayot	0:4db361f2e6d5	1228	UINT nent /* Number of contiguous entries to allocate (1-21) */
willybayot	0:4db361f2e6d5	1229	)
willybayot	0:4db361f2e6d5	1230	{
willybayot	0:4db361f2e6d5	1231	FRESULT res;
willybayot	0:4db361f2e6d5	1232	UINT n;
willybayot	0:4db361f2e6d5	1233
willybayot	0:4db361f2e6d5	1234
willybayot	0:4db361f2e6d5	1235	res = dir_sdi(dp, 0);
willybayot	0:4db361f2e6d5	1236	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	1237	n = 0;
willybayot	0:4db361f2e6d5	1238	do {
willybayot	0:4db361f2e6d5	1239	res = move_window(dp->fs, dp->sect);
willybayot	0:4db361f2e6d5	1240	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	1241	if (dp->dir[0] == DDE \|\| dp->dir[0] == 0) { /* Is it a blank entry? */
willybayot	0:4db361f2e6d5	1242	if (++n == nent) break; /* A block of contiguous entries is found */
willybayot	0:4db361f2e6d5	1243	} else {
willybayot	0:4db361f2e6d5	1244	n = 0; /* Not a blank entry. Restart to search */
willybayot	0:4db361f2e6d5	1245	}
willybayot	0:4db361f2e6d5	1246	res = dir_next(dp, 1); /* Next entry with table stretch enabled */
willybayot	0:4db361f2e6d5	1247	} while (res == FR_OK);
willybayot	0:4db361f2e6d5	1248	}
willybayot	0:4db361f2e6d5	1249	if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
willybayot	0:4db361f2e6d5	1250	return res;
willybayot	0:4db361f2e6d5	1251	}
willybayot	0:4db361f2e6d5	1252	#endif
willybayot	0:4db361f2e6d5	1253
willybayot	0:4db361f2e6d5	1254
willybayot	0:4db361f2e6d5	1255
willybayot	0:4db361f2e6d5	1256
willybayot	0:4db361f2e6d5	1257	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1258	/* Directory handling - Load/Store start cluster number */
willybayot	0:4db361f2e6d5	1259	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1260
willybayot	0:4db361f2e6d5	1261	static
willybayot	0:4db361f2e6d5	1262	DWORD ld_clust (
willybayot	0:4db361f2e6d5	1263	FATFS* fs, /* Pointer to the fs object */
willybayot	0:4db361f2e6d5	1264	BYTE* dir /* Pointer to the directory entry */
willybayot	0:4db361f2e6d5	1265	)
willybayot	0:4db361f2e6d5	1266	{
willybayot	0:4db361f2e6d5	1267	DWORD cl;
willybayot	0:4db361f2e6d5	1268
willybayot	0:4db361f2e6d5	1269	cl = LD_WORD(dir+DIR_FstClusLO);
willybayot	0:4db361f2e6d5	1270	if (fs->fs_type == FS_FAT32)
willybayot	0:4db361f2e6d5	1271	cl \|= (DWORD)LD_WORD(dir+DIR_FstClusHI) << 16;
willybayot	0:4db361f2e6d5	1272
willybayot	0:4db361f2e6d5	1273	return cl;
willybayot	0:4db361f2e6d5	1274	}
willybayot	0:4db361f2e6d5	1275
willybayot	0:4db361f2e6d5	1276
willybayot	0:4db361f2e6d5	1277	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	1278	static
willybayot	0:4db361f2e6d5	1279	void st_clust (
willybayot	0:4db361f2e6d5	1280	BYTE* dir, /* Pointer to the directory entry */
willybayot	0:4db361f2e6d5	1281	DWORD cl /* Value to be set */
willybayot	0:4db361f2e6d5	1282	)
willybayot	0:4db361f2e6d5	1283	{
willybayot	0:4db361f2e6d5	1284	ST_WORD(dir+DIR_FstClusLO, cl);
willybayot	0:4db361f2e6d5	1285	ST_WORD(dir+DIR_FstClusHI, cl >> 16);
willybayot	0:4db361f2e6d5	1286	}
willybayot	0:4db361f2e6d5	1287	#endif
willybayot	0:4db361f2e6d5	1288
willybayot	0:4db361f2e6d5	1289
willybayot	0:4db361f2e6d5	1290
willybayot	0:4db361f2e6d5	1291
willybayot	0:4db361f2e6d5	1292	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1293	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
willybayot	0:4db361f2e6d5	1294	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1295	#if _USE_LFN
willybayot	0:4db361f2e6d5	1296	static
willybayot	0:4db361f2e6d5	1297	const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN characters in the directory entry */
willybayot	0:4db361f2e6d5	1298
willybayot	0:4db361f2e6d5	1299
willybayot	0:4db361f2e6d5	1300	static
willybayot	0:4db361f2e6d5	1301	int cmp_lfn ( /* 1:Matched, 0:Not matched */
willybayot	0:4db361f2e6d5	1302	WCHAR* lfnbuf, /* Pointer to the LFN to be compared */
willybayot	0:4db361f2e6d5	1303	BYTE* dir /* Pointer to the directory entry containing a part of LFN */
willybayot	0:4db361f2e6d5	1304	)
willybayot	0:4db361f2e6d5	1305	{
willybayot	0:4db361f2e6d5	1306	UINT i, s;
willybayot	0:4db361f2e6d5	1307	WCHAR wc, uc;
willybayot	0:4db361f2e6d5	1308
willybayot	0:4db361f2e6d5	1309
willybayot	0:4db361f2e6d5	1310	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
willybayot	0:4db361f2e6d5	1311	s = 0; wc = 1;
willybayot	0:4db361f2e6d5	1312	do {
willybayot	0:4db361f2e6d5	1313	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
willybayot	0:4db361f2e6d5	1314	if (wc) { /* Last character has not been processed */
willybayot	0:4db361f2e6d5	1315	wc = ff_wtoupper(uc); /* Convert it to upper case */
willybayot	0:4db361f2e6d5	1316	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
willybayot	0:4db361f2e6d5	1317	return 0; /* Not matched */
willybayot	0:4db361f2e6d5	1318	} else {
willybayot	0:4db361f2e6d5	1319	if (uc != 0xFFFF) return 0; /* Check filler */
willybayot	0:4db361f2e6d5	1320	}
willybayot	0:4db361f2e6d5	1321	} while (++s < 13); /* Repeat until all characters in the entry are checked */
willybayot	0:4db361f2e6d5	1322
willybayot	0:4db361f2e6d5	1323	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) /* Last segment matched but different length */
willybayot	0:4db361f2e6d5	1324	return 0;
willybayot	0:4db361f2e6d5	1325
willybayot	0:4db361f2e6d5	1326	return 1; /* The part of LFN matched */
willybayot	0:4db361f2e6d5	1327	}
willybayot	0:4db361f2e6d5	1328
willybayot	0:4db361f2e6d5	1329
willybayot	0:4db361f2e6d5	1330
willybayot	0:4db361f2e6d5	1331	static
willybayot	0:4db361f2e6d5	1332	int pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
willybayot	0:4db361f2e6d5	1333	WCHAR* lfnbuf, /* Pointer to the Unicode-LFN buffer */
willybayot	0:4db361f2e6d5	1334	BYTE* dir /* Pointer to the directory entry */
willybayot	0:4db361f2e6d5	1335	)
willybayot	0:4db361f2e6d5	1336	{
willybayot	0:4db361f2e6d5	1337	UINT i, s;
willybayot	0:4db361f2e6d5	1338	WCHAR wc, uc;
willybayot	0:4db361f2e6d5	1339
willybayot	0:4db361f2e6d5	1340
willybayot	0:4db361f2e6d5	1341	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
willybayot	0:4db361f2e6d5	1342
willybayot	0:4db361f2e6d5	1343	s = 0; wc = 1;
willybayot	0:4db361f2e6d5	1344	do {
willybayot	0:4db361f2e6d5	1345	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
willybayot	0:4db361f2e6d5	1346	if (wc) { /* Last character has not been processed */
willybayot	0:4db361f2e6d5	1347	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
willybayot	0:4db361f2e6d5	1348	lfnbuf[i++] = wc = uc; /* Store it */
willybayot	0:4db361f2e6d5	1349	} else {
willybayot	0:4db361f2e6d5	1350	if (uc != 0xFFFF) return 0; /* Check filler */
willybayot	0:4db361f2e6d5	1351	}
willybayot	0:4db361f2e6d5	1352	} while (++s < 13); /* Read all character in the entry */
willybayot	0:4db361f2e6d5	1353
willybayot	0:4db361f2e6d5	1354	if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
willybayot	0:4db361f2e6d5	1355	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
willybayot	0:4db361f2e6d5	1356	lfnbuf[i] = 0;
willybayot	0:4db361f2e6d5	1357	}
willybayot	0:4db361f2e6d5	1358
willybayot	0:4db361f2e6d5	1359	return 1;
willybayot	0:4db361f2e6d5	1360	}
willybayot	0:4db361f2e6d5	1361
willybayot	0:4db361f2e6d5	1362
willybayot	0:4db361f2e6d5	1363	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	1364	static
willybayot	0:4db361f2e6d5	1365	void fit_lfn (
willybayot	0:4db361f2e6d5	1366	const WCHAR* lfnbuf, /* Pointer to the LFN buffer */
willybayot	0:4db361f2e6d5	1367	BYTE* dir, /* Pointer to the directory entry */
willybayot	0:4db361f2e6d5	1368	BYTE ord, /* LFN order (1-20) */
willybayot	0:4db361f2e6d5	1369	BYTE sum /* SFN sum */
willybayot	0:4db361f2e6d5	1370	)
willybayot	0:4db361f2e6d5	1371	{
willybayot	0:4db361f2e6d5	1372	UINT i, s;
willybayot	0:4db361f2e6d5	1373	WCHAR wc;
willybayot	0:4db361f2e6d5	1374
willybayot	0:4db361f2e6d5	1375
willybayot	0:4db361f2e6d5	1376	dir[LDIR_Chksum] = sum; /* Set check sum */
willybayot	0:4db361f2e6d5	1377	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
willybayot	0:4db361f2e6d5	1378	dir[LDIR_Type] = 0;
willybayot	0:4db361f2e6d5	1379	ST_WORD(dir+LDIR_FstClusLO, 0);
willybayot	0:4db361f2e6d5	1380
willybayot	0:4db361f2e6d5	1381	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
willybayot	0:4db361f2e6d5	1382	s = wc = 0;
willybayot	0:4db361f2e6d5	1383	do {
willybayot	0:4db361f2e6d5	1384	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
willybayot	0:4db361f2e6d5	1385	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
willybayot	0:4db361f2e6d5	1386	if (!wc) wc = 0xFFFF; /* Padding characters following last character */
willybayot	0:4db361f2e6d5	1387	} while (++s < 13);
willybayot	0:4db361f2e6d5	1388	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLE; /* Bottom LFN part is the start of LFN sequence */
willybayot	0:4db361f2e6d5	1389	dir[LDIR_Ord] = ord; /* Set the LFN order */
willybayot	0:4db361f2e6d5	1390	}
willybayot	0:4db361f2e6d5	1391
willybayot	0:4db361f2e6d5	1392	#endif
willybayot	0:4db361f2e6d5	1393	#endif
willybayot	0:4db361f2e6d5	1394
willybayot	0:4db361f2e6d5	1395
willybayot	0:4db361f2e6d5	1396
willybayot	0:4db361f2e6d5	1397
willybayot	0:4db361f2e6d5	1398	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1399	/* Create numbered name */
willybayot	0:4db361f2e6d5	1400	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1401	#if _USE_LFN
willybayot	0:4db361f2e6d5	1402	void gen_numname (
willybayot	0:4db361f2e6d5	1403	BYTE* dst, /* Pointer to generated SFN */
willybayot	0:4db361f2e6d5	1404	const BYTE* src, /* Pointer to source SFN to be modified */
willybayot	0:4db361f2e6d5	1405	const WCHAR* lfn, /* Pointer to LFN */
willybayot	0:4db361f2e6d5	1406	WORD seq /* Sequence number */
willybayot	0:4db361f2e6d5	1407	)
willybayot	0:4db361f2e6d5	1408	{
willybayot	0:4db361f2e6d5	1409	BYTE ns[8], c;
willybayot	0:4db361f2e6d5	1410	UINT i, j;
willybayot	0:4db361f2e6d5	1411
willybayot	0:4db361f2e6d5	1412
willybayot	0:4db361f2e6d5	1413	mem_cpy(dst, src, 11);
willybayot	0:4db361f2e6d5	1414
willybayot	0:4db361f2e6d5	1415	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
willybayot	0:4db361f2e6d5	1416	do seq = (seq >> 1) + (seq << 15) + (WORD)lfn++; while (lfn);
willybayot	0:4db361f2e6d5	1417	}
willybayot	0:4db361f2e6d5	1418
willybayot	0:4db361f2e6d5	1419	/* itoa (hexdecimal) */
willybayot	0:4db361f2e6d5	1420	i = 7;
willybayot	0:4db361f2e6d5	1421	do {
willybayot	0:4db361f2e6d5	1422	c = (seq % 16) + '0';
willybayot	0:4db361f2e6d5	1423	if (c > '9') c += 7;
willybayot	0:4db361f2e6d5	1424	ns[i--] = c;
willybayot	0:4db361f2e6d5	1425	seq /= 16;
willybayot	0:4db361f2e6d5	1426	} while (seq);
willybayot	0:4db361f2e6d5	1427	ns[i] = '~';
willybayot	0:4db361f2e6d5	1428
willybayot	0:4db361f2e6d5	1429	/* Append the number */
willybayot	0:4db361f2e6d5	1430	for (j = 0; j < i && dst[j] != ' '; j++) {
willybayot	0:4db361f2e6d5	1431	if (IsDBCS1(dst[j])) {
willybayot	0:4db361f2e6d5	1432	if (j == i - 1) break;
willybayot	0:4db361f2e6d5	1433	j++;
willybayot	0:4db361f2e6d5	1434	}
willybayot	0:4db361f2e6d5	1435	}
willybayot	0:4db361f2e6d5	1436	do {
willybayot	0:4db361f2e6d5	1437	dst[j++] = (i < 8) ? ns[i++] : ' ';
willybayot	0:4db361f2e6d5	1438	} while (j < 8);
willybayot	0:4db361f2e6d5	1439	}
willybayot	0:4db361f2e6d5	1440	#endif
willybayot	0:4db361f2e6d5	1441
willybayot	0:4db361f2e6d5	1442
willybayot	0:4db361f2e6d5	1443
willybayot	0:4db361f2e6d5	1444
willybayot	0:4db361f2e6d5	1445	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1446	/* Calculate sum of an SFN */
willybayot	0:4db361f2e6d5	1447	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1448	#if _USE_LFN
willybayot	0:4db361f2e6d5	1449	static
willybayot	0:4db361f2e6d5	1450	BYTE sum_sfn (
willybayot	0:4db361f2e6d5	1451	const BYTE* dir /* Pointer to the SFN entry */
willybayot	0:4db361f2e6d5	1452	)
willybayot	0:4db361f2e6d5	1453	{
willybayot	0:4db361f2e6d5	1454	BYTE sum = 0;
willybayot	0:4db361f2e6d5	1455	UINT n = 11;
willybayot	0:4db361f2e6d5	1456
willybayot	0:4db361f2e6d5	1457	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
willybayot	0:4db361f2e6d5	1458	return sum;
willybayot	0:4db361f2e6d5	1459	}
willybayot	0:4db361f2e6d5	1460	#endif
willybayot	0:4db361f2e6d5	1461
willybayot	0:4db361f2e6d5	1462
willybayot	0:4db361f2e6d5	1463
willybayot	0:4db361f2e6d5	1464
willybayot	0:4db361f2e6d5	1465	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1466	/* Directory handling - Find an object in the directory */
willybayot	0:4db361f2e6d5	1467	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1468
willybayot	0:4db361f2e6d5	1469	static
willybayot	0:4db361f2e6d5	1470	FRESULT dir_find (
willybayot	0:4db361f2e6d5	1471	DIR* dp /* Pointer to the directory object linked to the file name */
willybayot	0:4db361f2e6d5	1472	)
willybayot	0:4db361f2e6d5	1473	{
willybayot	0:4db361f2e6d5	1474	FRESULT res;
willybayot	0:4db361f2e6d5	1475	BYTE c, *dir;
willybayot	0:4db361f2e6d5	1476	#if _USE_LFN
willybayot	0:4db361f2e6d5	1477	BYTE a, ord, sum;
willybayot	0:4db361f2e6d5	1478	#endif
willybayot	0:4db361f2e6d5	1479
willybayot	0:4db361f2e6d5	1480	res = dir_sdi(dp, 0); /* Rewind directory object */
willybayot	0:4db361f2e6d5	1481	if (res != FR_OK) return res;
willybayot	0:4db361f2e6d5	1482
willybayot	0:4db361f2e6d5	1483	#if _USE_LFN
willybayot	0:4db361f2e6d5	1484	ord = sum = 0xFF;
willybayot	0:4db361f2e6d5	1485	#endif
willybayot	0:4db361f2e6d5	1486	do {
willybayot	0:4db361f2e6d5	1487	res = move_window(dp->fs, dp->sect);
willybayot	0:4db361f2e6d5	1488	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	1489	dir = dp->dir; /* Ptr to the directory entry of current index */
willybayot	0:4db361f2e6d5	1490	c = dir[DIR_Name];
willybayot	0:4db361f2e6d5	1491	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
willybayot	0:4db361f2e6d5	1492	#if _USE_LFN /* LFN configuration */
willybayot	0:4db361f2e6d5	1493	a = dir[DIR_Attr] & AM_MASK;
willybayot	0:4db361f2e6d5	1494	if (c == DDE \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
willybayot	0:4db361f2e6d5	1495	ord = 0xFF;
willybayot	0:4db361f2e6d5	1496	} else {
willybayot	0:4db361f2e6d5	1497	if (a == AM_LFN) { /* An LFN entry is found */
willybayot	0:4db361f2e6d5	1498	if (dp->lfn) {
willybayot	0:4db361f2e6d5	1499	if (c & LLE) { /* Is it start of LFN sequence? */
willybayot	0:4db361f2e6d5	1500	sum = dir[LDIR_Chksum];
willybayot	0:4db361f2e6d5	1501	c &= ~LLE; ord = c; /* LFN start order */
willybayot	0:4db361f2e6d5	1502	dp->lfn_idx = dp->index;
willybayot	0:4db361f2e6d5	1503	}
willybayot	0:4db361f2e6d5	1504	/* Check validity of the LFN entry and compare it with given name */
willybayot	0:4db361f2e6d5	1505	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
willybayot	0:4db361f2e6d5	1506	}
willybayot	0:4db361f2e6d5	1507	} else { /* An SFN entry is found */
willybayot	0:4db361f2e6d5	1508	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
willybayot	0:4db361f2e6d5	1509	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
willybayot	0:4db361f2e6d5	1510	if (!(dp->fn[NS] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) break; /* SFN matched? */
willybayot	0:4db361f2e6d5	1511	}
willybayot	0:4db361f2e6d5	1512	}
willybayot	0:4db361f2e6d5	1513	#else /* Non LFN configuration */
willybayot	0:4db361f2e6d5	1514	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dp->fn, 11)) /* Is it a valid entry? */
willybayot	0:4db361f2e6d5	1515	break;
willybayot	0:4db361f2e6d5	1516	#endif
willybayot	0:4db361f2e6d5	1517	res = dir_next(dp, 0); /* Next entry */
willybayot	0:4db361f2e6d5	1518	} while (res == FR_OK);
willybayot	0:4db361f2e6d5	1519
willybayot	0:4db361f2e6d5	1520	return res;
willybayot	0:4db361f2e6d5	1521	}
willybayot	0:4db361f2e6d5	1522
willybayot	0:4db361f2e6d5	1523
willybayot	0:4db361f2e6d5	1524
willybayot	0:4db361f2e6d5	1525
willybayot	0:4db361f2e6d5	1526	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1527	/* Read an object from the directory */
willybayot	0:4db361f2e6d5	1528	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1529	#if _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2
willybayot	0:4db361f2e6d5	1530	static
willybayot	0:4db361f2e6d5	1531	FRESULT dir_read (
willybayot	0:4db361f2e6d5	1532	DIR* dp, /* Pointer to the directory object */
willybayot	0:4db361f2e6d5	1533	int vol /* Filtered by 0:file/directory or 1:volume label */
willybayot	0:4db361f2e6d5	1534	)
willybayot	0:4db361f2e6d5	1535	{
willybayot	0:4db361f2e6d5	1536	FRESULT res;
willybayot	0:4db361f2e6d5	1537	BYTE a, c, *dir;
willybayot	0:4db361f2e6d5	1538	#if _USE_LFN
willybayot	0:4db361f2e6d5	1539	BYTE ord = 0xFF, sum = 0xFF;
willybayot	0:4db361f2e6d5	1540	#endif
willybayot	0:4db361f2e6d5	1541
willybayot	0:4db361f2e6d5	1542	res = FR_NO_FILE;
willybayot	0:4db361f2e6d5	1543	while (dp->sect) {
willybayot	0:4db361f2e6d5	1544	res = move_window(dp->fs, dp->sect);
willybayot	0:4db361f2e6d5	1545	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	1546	dir = dp->dir; /* Ptr to the directory entry of current index */
willybayot	0:4db361f2e6d5	1547	c = dir[DIR_Name];
willybayot	0:4db361f2e6d5	1548	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
willybayot	0:4db361f2e6d5	1549	a = dir[DIR_Attr] & AM_MASK;
willybayot	0:4db361f2e6d5	1550	#if _USE_LFN /* LFN configuration */
willybayot	0:4db361f2e6d5	1551	if (c == DDE \|\| (!_FS_RPATH && c == '.') \|\| (int)(a == AM_VOL) != vol) { /* An entry without valid data */
willybayot	0:4db361f2e6d5	1552	ord = 0xFF;
willybayot	0:4db361f2e6d5	1553	} else {
willybayot	0:4db361f2e6d5	1554	if (a == AM_LFN) { /* An LFN entry is found */
willybayot	0:4db361f2e6d5	1555	if (c & LLE) { /* Is it start of LFN sequence? */
willybayot	0:4db361f2e6d5	1556	sum = dir[LDIR_Chksum];
willybayot	0:4db361f2e6d5	1557	c &= ~LLE; ord = c;
willybayot	0:4db361f2e6d5	1558	dp->lfn_idx = dp->index;
willybayot	0:4db361f2e6d5	1559	}
willybayot	0:4db361f2e6d5	1560	/* Check LFN validity and capture it */
willybayot	0:4db361f2e6d5	1561	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
willybayot	0:4db361f2e6d5	1562	} else { /* An SFN entry is found */
willybayot	0:4db361f2e6d5	1563	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
willybayot	0:4db361f2e6d5	1564	dp->lfn_idx = 0xFFFF; /* It has no LFN. */
willybayot	0:4db361f2e6d5	1565	break;
willybayot	0:4db361f2e6d5	1566	}
willybayot	0:4db361f2e6d5	1567	}
willybayot	0:4db361f2e6d5	1568	#else /* Non LFN configuration */
willybayot	0:4db361f2e6d5	1569	if (c != DDE && (_FS_RPATH \|\| c != '.') && a != AM_LFN && (int)(a == AM_VOL) == vol) /* Is it a valid entry? */
willybayot	0:4db361f2e6d5	1570	break;
willybayot	0:4db361f2e6d5	1571	#endif
willybayot	0:4db361f2e6d5	1572	res = dir_next(dp, 0); /* Next entry */
willybayot	0:4db361f2e6d5	1573	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	1574	}
willybayot	0:4db361f2e6d5	1575
willybayot	0:4db361f2e6d5	1576	if (res != FR_OK) dp->sect = 0;
willybayot	0:4db361f2e6d5	1577
willybayot	0:4db361f2e6d5	1578	return res;
willybayot	0:4db361f2e6d5	1579	}
willybayot	0:4db361f2e6d5	1580	#endif /* _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2 */
willybayot	0:4db361f2e6d5	1581
willybayot	0:4db361f2e6d5	1582
willybayot	0:4db361f2e6d5	1583
willybayot	0:4db361f2e6d5	1584
willybayot	0:4db361f2e6d5	1585	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1586	/* Register an object to the directory */
willybayot	0:4db361f2e6d5	1587	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1588	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	1589	static
willybayot	0:4db361f2e6d5	1590	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
willybayot	0:4db361f2e6d5	1591	DIR* dp /* Target directory with object name to be created */
willybayot	0:4db361f2e6d5	1592	)
willybayot	0:4db361f2e6d5	1593	{
willybayot	0:4db361f2e6d5	1594	FRESULT res;
willybayot	0:4db361f2e6d5	1595	#if _USE_LFN /* LFN configuration */
willybayot	0:4db361f2e6d5	1596	WORD n, ne;
willybayot	0:4db361f2e6d5	1597	BYTE sn[12], *fn, sum;
willybayot	0:4db361f2e6d5	1598	WCHAR *lfn;
willybayot	0:4db361f2e6d5	1599
willybayot	0:4db361f2e6d5	1600
willybayot	0:4db361f2e6d5	1601	fn = dp->fn; lfn = dp->lfn;
willybayot	0:4db361f2e6d5	1602	mem_cpy(sn, fn, 12);
willybayot	0:4db361f2e6d5	1603
willybayot	0:4db361f2e6d5	1604	if (_FS_RPATH && (sn[NS] & NS_DOT)) /* Cannot create dot entry */
willybayot	0:4db361f2e6d5	1605	return FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	1606
willybayot	0:4db361f2e6d5	1607	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
willybayot	0:4db361f2e6d5	1608	fn[NS] = 0; dp->lfn = 0; /* Find only SFN */
willybayot	0:4db361f2e6d5	1609	for (n = 1; n < 100; n++) {
willybayot	0:4db361f2e6d5	1610	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
willybayot	0:4db361f2e6d5	1611	res = dir_find(dp); /* Check if the name collides with existing SFN */
willybayot	0:4db361f2e6d5	1612	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	1613	}
willybayot	0:4db361f2e6d5	1614	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
willybayot	0:4db361f2e6d5	1615	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
willybayot	0:4db361f2e6d5	1616	fn[NS] = sn[NS]; dp->lfn = lfn;
willybayot	0:4db361f2e6d5	1617	}
willybayot	0:4db361f2e6d5	1618
willybayot	0:4db361f2e6d5	1619	if (sn[NS] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
willybayot	0:4db361f2e6d5	1620	for (n = 0; lfn[n]; n++) ;
willybayot	0:4db361f2e6d5	1621	ne = (n + 25) / 13;
willybayot	0:4db361f2e6d5	1622	} else { /* Otherwise allocate an entry for an SFN */
willybayot	0:4db361f2e6d5	1623	ne = 1;
willybayot	0:4db361f2e6d5	1624	}
willybayot	0:4db361f2e6d5	1625	res = dir_alloc(dp, ne); /* Allocate entries */
willybayot	0:4db361f2e6d5	1626
willybayot	0:4db361f2e6d5	1627	if (res == FR_OK && --ne) { /* Set LFN entry if needed */
willybayot	0:4db361f2e6d5	1628	res = dir_sdi(dp, (WORD)(dp->index - ne));
willybayot	0:4db361f2e6d5	1629	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	1630	sum = sum_sfn(dp->fn); /* Sum value of the SFN tied to the LFN */
willybayot	0:4db361f2e6d5	1631	do { /* Store LFN entries in bottom first */
willybayot	0:4db361f2e6d5	1632	res = move_window(dp->fs, dp->sect);
willybayot	0:4db361f2e6d5	1633	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	1634	fit_lfn(dp->lfn, dp->dir, (BYTE)ne, sum);
willybayot	0:4db361f2e6d5	1635	dp->fs->wflag = 1;
willybayot	0:4db361f2e6d5	1636	res = dir_next(dp, 0); /* Next entry */
willybayot	0:4db361f2e6d5	1637	} while (res == FR_OK && --ne);
willybayot	0:4db361f2e6d5	1638	}
willybayot	0:4db361f2e6d5	1639	}
willybayot	0:4db361f2e6d5	1640	#else /* Non LFN configuration */
willybayot	0:4db361f2e6d5	1641	res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
willybayot	0:4db361f2e6d5	1642	#endif
willybayot	0:4db361f2e6d5	1643
willybayot	0:4db361f2e6d5	1644	if (res == FR_OK) { /* Set SFN entry */
willybayot	0:4db361f2e6d5	1645	res = move_window(dp->fs, dp->sect);
willybayot	0:4db361f2e6d5	1646	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	1647	mem_set(dp->dir, 0, SZ_DIR); /* Clean the entry */
willybayot	0:4db361f2e6d5	1648	mem_cpy(dp->dir, dp->fn, 11); /* Put SFN */
willybayot	0:4db361f2e6d5	1649	#if _USE_LFN
willybayot	0:4db361f2e6d5	1650	dp->dir[DIR_NTres] = dp->fn[NS] & (NS_BODY \| NS_EXT); /* Put NT flag */
willybayot	0:4db361f2e6d5	1651	#endif
willybayot	0:4db361f2e6d5	1652	dp->fs->wflag = 1;
willybayot	0:4db361f2e6d5	1653	}
willybayot	0:4db361f2e6d5	1654	}
willybayot	0:4db361f2e6d5	1655
willybayot	0:4db361f2e6d5	1656	return res;
willybayot	0:4db361f2e6d5	1657	}
willybayot	0:4db361f2e6d5	1658	#endif /* !_FS_READONLY */
willybayot	0:4db361f2e6d5	1659
willybayot	0:4db361f2e6d5	1660
willybayot	0:4db361f2e6d5	1661
willybayot	0:4db361f2e6d5	1662
willybayot	0:4db361f2e6d5	1663	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1664	/* Remove an object from the directory */
willybayot	0:4db361f2e6d5	1665	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1666	#if !_FS_READONLY && !_FS_MINIMIZE
willybayot	0:4db361f2e6d5	1667	static
willybayot	0:4db361f2e6d5	1668	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
willybayot	0:4db361f2e6d5	1669	DIR* dp /* Directory object pointing the entry to be removed */
willybayot	0:4db361f2e6d5	1670	)
willybayot	0:4db361f2e6d5	1671	{
willybayot	0:4db361f2e6d5	1672	FRESULT res;
willybayot	0:4db361f2e6d5	1673	#if _USE_LFN /* LFN configuration */
willybayot	0:4db361f2e6d5	1674	WORD i;
willybayot	0:4db361f2e6d5	1675
willybayot	0:4db361f2e6d5	1676	i = dp->index; /* SFN index */
willybayot	0:4db361f2e6d5	1677	res = dir_sdi(dp, (WORD)((dp->lfn_idx == 0xFFFF) ? i : dp->lfn_idx)); /* Goto the SFN or top of the LFN entries */
willybayot	0:4db361f2e6d5	1678	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	1679	do {
willybayot	0:4db361f2e6d5	1680	res = move_window(dp->fs, dp->sect);
willybayot	0:4db361f2e6d5	1681	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	1682	dp->dir = DDE; / Mark the entry "deleted" */
willybayot	0:4db361f2e6d5	1683	dp->fs->wflag = 1;
willybayot	0:4db361f2e6d5	1684	if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
willybayot	0:4db361f2e6d5	1685	res = dir_next(dp, 0); /* Next entry */
willybayot	0:4db361f2e6d5	1686	} while (res == FR_OK);
willybayot	0:4db361f2e6d5	1687	if (res == FR_NO_FILE) res = FR_INT_ERR;
willybayot	0:4db361f2e6d5	1688	}
willybayot	0:4db361f2e6d5	1689
willybayot	0:4db361f2e6d5	1690	#else /* Non LFN configuration */
willybayot	0:4db361f2e6d5	1691	res = dir_sdi(dp, dp->index);
willybayot	0:4db361f2e6d5	1692	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	1693	res = move_window(dp->fs, dp->sect);
willybayot	0:4db361f2e6d5	1694	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	1695	dp->dir = DDE; / Mark the entry "deleted" */
willybayot	0:4db361f2e6d5	1696	dp->fs->wflag = 1;
willybayot	0:4db361f2e6d5	1697	}
willybayot	0:4db361f2e6d5	1698	}
willybayot	0:4db361f2e6d5	1699	#endif
willybayot	0:4db361f2e6d5	1700
willybayot	0:4db361f2e6d5	1701	return res;
willybayot	0:4db361f2e6d5	1702	}
willybayot	0:4db361f2e6d5	1703	#endif /* !_FS_READONLY */
willybayot	0:4db361f2e6d5	1704
willybayot	0:4db361f2e6d5	1705
willybayot	0:4db361f2e6d5	1706
willybayot	0:4db361f2e6d5	1707
willybayot	0:4db361f2e6d5	1708	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1709	/* Pick a segment and create the object name in directory form */
willybayot	0:4db361f2e6d5	1710	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1711
willybayot	0:4db361f2e6d5	1712	static
willybayot	0:4db361f2e6d5	1713	FRESULT create_name (
willybayot	0:4db361f2e6d5	1714	DIR* dp, /* Pointer to the directory object */
willybayot	0:4db361f2e6d5	1715	const TCHAR** path /* Pointer to pointer to the segment in the path string */
willybayot	0:4db361f2e6d5	1716	)
willybayot	0:4db361f2e6d5	1717	{
willybayot	0:4db361f2e6d5	1718	#if _USE_LFN /* LFN configuration */
willybayot	0:4db361f2e6d5	1719	BYTE b, cf;
willybayot	0:4db361f2e6d5	1720	WCHAR w, *lfn;
willybayot	0:4db361f2e6d5	1721	UINT i, ni, si, di;
willybayot	0:4db361f2e6d5	1722	const TCHAR *p;
willybayot	0:4db361f2e6d5	1723
willybayot	0:4db361f2e6d5	1724	/* Create LFN in Unicode */
willybayot	0:4db361f2e6d5	1725	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
willybayot	0:4db361f2e6d5	1726	lfn = dp->lfn;
willybayot	0:4db361f2e6d5	1727	si = di = 0;
willybayot	0:4db361f2e6d5	1728	for (;;) {
willybayot	0:4db361f2e6d5	1729	w = p[si++]; /* Get a character */
willybayot	0:4db361f2e6d5	1730	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
willybayot	0:4db361f2e6d5	1731	if (di >= _MAX_LFN) /* Reject too long name */
willybayot	0:4db361f2e6d5	1732	return FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	1733	#if !_LFN_UNICODE
willybayot	0:4db361f2e6d5	1734	w &= 0xFF;
willybayot	0:4db361f2e6d5	1735	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
willybayot	0:4db361f2e6d5	1736
willybayot	0:4db361f2e6d5	1737	#if _DF1S
willybayot	0:4db361f2e6d5	1738	b = (BYTE)p[si++]; /* Get 2nd byte */
willybayot	0:4db361f2e6d5	1739	if (!IsDBCS2(b))
willybayot	0:4db361f2e6d5	1740	return FR_INVALID_NAME; /* Reject invalid sequence */
willybayot	0:4db361f2e6d5	1741	w = (w << 8) + b; /* Create a DBC */
willybayot	0:4db361f2e6d5	1742	#endif
willybayot	0:4db361f2e6d5	1743	}
willybayot	0:4db361f2e6d5	1744	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
willybayot	0:4db361f2e6d5	1745	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
willybayot	0:4db361f2e6d5	1746	#endif
willybayot	0:4db361f2e6d5	1747	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal characters for LFN */
willybayot	0:4db361f2e6d5	1748	return FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	1749	lfn[di++] = w; /* Store the Unicode character */
willybayot	0:4db361f2e6d5	1750	}
willybayot	0:4db361f2e6d5	1751	path = &p[si]; / Return pointer to the next segment */
willybayot	0:4db361f2e6d5	1752	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
willybayot	0:4db361f2e6d5	1753	#if _FS_RPATH
willybayot	0:4db361f2e6d5	1754	if ((di == 1 && lfn[di-1] == '.') \|\| /* Is this a dot entry? */
willybayot	0:4db361f2e6d5	1755	(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
willybayot	0:4db361f2e6d5	1756	lfn[di] = 0;
willybayot	0:4db361f2e6d5	1757	for (i = 0; i < 11; i++)
willybayot	0:4db361f2e6d5	1758	dp->fn[i] = (i < di) ? '.' : ' ';
willybayot	0:4db361f2e6d5	1759	dp->fn[i] = cf \| NS_DOT; /* This is a dot entry */
willybayot	0:4db361f2e6d5	1760	return FR_OK;
willybayot	0:4db361f2e6d5	1761	}
willybayot	0:4db361f2e6d5	1762	#endif
willybayot	0:4db361f2e6d5	1763	while (di) { /* Strip trailing spaces and dots */
willybayot	0:4db361f2e6d5	1764	w = lfn[di-1];
willybayot	0:4db361f2e6d5	1765	if (w != ' ' && w != '.') break;
willybayot	0:4db361f2e6d5	1766	di--;
willybayot	0:4db361f2e6d5	1767	}
willybayot	0:4db361f2e6d5	1768	if (!di) return FR_INVALID_NAME; /* Reject nul string */
willybayot	0:4db361f2e6d5	1769
willybayot	0:4db361f2e6d5	1770	lfn[di] = 0; /* LFN is created */
willybayot	0:4db361f2e6d5	1771
willybayot	0:4db361f2e6d5	1772	/* Create SFN in directory form */
willybayot	0:4db361f2e6d5	1773	mem_set(dp->fn, ' ', 11);
willybayot	0:4db361f2e6d5	1774	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
willybayot	0:4db361f2e6d5	1775	if (si) cf \|= NS_LOSS \| NS_LFN;
willybayot	0:4db361f2e6d5	1776	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
willybayot	0:4db361f2e6d5	1777
willybayot	0:4db361f2e6d5	1778	b = i = 0; ni = 8;
willybayot	0:4db361f2e6d5	1779	for (;;) {
willybayot	0:4db361f2e6d5	1780	w = lfn[si++]; /* Get an LFN character */
willybayot	0:4db361f2e6d5	1781	if (!w) break; /* Break on end of the LFN */
willybayot	0:4db361f2e6d5	1782	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
willybayot	0:4db361f2e6d5	1783	cf \|= NS_LOSS \| NS_LFN; continue;
willybayot	0:4db361f2e6d5	1784	}
willybayot	0:4db361f2e6d5	1785
willybayot	0:4db361f2e6d5	1786	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
willybayot	0:4db361f2e6d5	1787	if (ni == 11) { /* Long extension */
willybayot	0:4db361f2e6d5	1788	cf \|= NS_LOSS \| NS_LFN; break;
willybayot	0:4db361f2e6d5	1789	}
willybayot	0:4db361f2e6d5	1790	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
willybayot	0:4db361f2e6d5	1791	if (si > di) break; /* No extension */
willybayot	0:4db361f2e6d5	1792	si = di; i = 8; ni = 11; /* Enter extension section */
willybayot	0:4db361f2e6d5	1793	b <<= 2; continue;
willybayot	0:4db361f2e6d5	1794	}
willybayot	0:4db361f2e6d5	1795
willybayot	0:4db361f2e6d5	1796	if (w >= 0x80) { /* Non ASCII character */
willybayot	0:4db361f2e6d5	1797	#ifdef _EXCVT
willybayot	0:4db361f2e6d5	1798	w = ff_convert(w, 0); /* Unicode -> OEM code */
willybayot	0:4db361f2e6d5	1799	if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
willybayot	0:4db361f2e6d5	1800	#else
willybayot	0:4db361f2e6d5	1801	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
willybayot	0:4db361f2e6d5	1802	#endif
willybayot	0:4db361f2e6d5	1803	cf \|= NS_LFN; /* Force create LFN entry */
willybayot	0:4db361f2e6d5	1804	}
willybayot	0:4db361f2e6d5	1805
willybayot	0:4db361f2e6d5	1806	if (_DF1S && w >= 0x100) { /* Double byte character (always false on SBCS cfg) */
willybayot	0:4db361f2e6d5	1807	if (i >= ni - 1) {
willybayot	0:4db361f2e6d5	1808	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
willybayot	0:4db361f2e6d5	1809	}
willybayot	0:4db361f2e6d5	1810	dp->fn[i++] = (BYTE)(w >> 8);
willybayot	0:4db361f2e6d5	1811	} else { /* Single byte character */
willybayot	0:4db361f2e6d5	1812	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
willybayot	0:4db361f2e6d5	1813	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
willybayot	0:4db361f2e6d5	1814	} else {
willybayot	0:4db361f2e6d5	1815	if (IsUpper(w)) { /* ASCII large capital */
willybayot	0:4db361f2e6d5	1816	b \|= 2;
willybayot	0:4db361f2e6d5	1817	} else {
willybayot	0:4db361f2e6d5	1818	if (IsLower(w)) { /* ASCII small capital */
willybayot	0:4db361f2e6d5	1819	b \|= 1; w -= 0x20;
willybayot	0:4db361f2e6d5	1820	}
willybayot	0:4db361f2e6d5	1821	}
willybayot	0:4db361f2e6d5	1822	}
willybayot	0:4db361f2e6d5	1823	}
willybayot	0:4db361f2e6d5	1824	dp->fn[i++] = (BYTE)w;
willybayot	0:4db361f2e6d5	1825	}
willybayot	0:4db361f2e6d5	1826
willybayot	0:4db361f2e6d5	1827	if (dp->fn[0] == DDE) dp->fn[0] = NDDE; /* If the first character collides with deleted mark, replace it with 0x05 */
willybayot	0:4db361f2e6d5	1828
willybayot	0:4db361f2e6d5	1829	if (ni == 8) b <<= 2;
willybayot	0:4db361f2e6d5	1830	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
willybayot	0:4db361f2e6d5	1831	cf \|= NS_LFN;
willybayot	0:4db361f2e6d5	1832	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
willybayot	0:4db361f2e6d5	1833	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
willybayot	0:4db361f2e6d5	1834	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
willybayot	0:4db361f2e6d5	1835	}
willybayot	0:4db361f2e6d5	1836
willybayot	0:4db361f2e6d5	1837	dp->fn[NS] = cf; /* SFN is created */
willybayot	0:4db361f2e6d5	1838
willybayot	0:4db361f2e6d5	1839	return FR_OK;
willybayot	0:4db361f2e6d5	1840
willybayot	0:4db361f2e6d5	1841
willybayot	0:4db361f2e6d5	1842	#else /* Non-LFN configuration */
willybayot	0:4db361f2e6d5	1843	BYTE b, c, d, *sfn;
willybayot	0:4db361f2e6d5	1844	UINT ni, si, i;
willybayot	0:4db361f2e6d5	1845	const char *p;
willybayot	0:4db361f2e6d5	1846
willybayot	0:4db361f2e6d5	1847	/* Create file name in directory form */
willybayot	0:4db361f2e6d5	1848	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
willybayot	0:4db361f2e6d5	1849	sfn = dp->fn;
willybayot	0:4db361f2e6d5	1850	mem_set(sfn, ' ', 11);
willybayot	0:4db361f2e6d5	1851	si = i = b = 0; ni = 8;
willybayot	0:4db361f2e6d5	1852	#if _FS_RPATH
willybayot	0:4db361f2e6d5	1853	if (p[si] == '.') { /* Is this a dot entry? */
willybayot	0:4db361f2e6d5	1854	for (;;) {
willybayot	0:4db361f2e6d5	1855	c = (BYTE)p[si++];
willybayot	0:4db361f2e6d5	1856	if (c != '.' \|\| si >= 3) break;
willybayot	0:4db361f2e6d5	1857	sfn[i++] = c;
willybayot	0:4db361f2e6d5	1858	}
willybayot	0:4db361f2e6d5	1859	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	1860	path = &p[si]; / Return pointer to the next segment */
willybayot	0:4db361f2e6d5	1861	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
willybayot	0:4db361f2e6d5	1862	return FR_OK;
willybayot	0:4db361f2e6d5	1863	}
willybayot	0:4db361f2e6d5	1864	#endif
willybayot	0:4db361f2e6d5	1865	for (;;) {
willybayot	0:4db361f2e6d5	1866	c = (BYTE)p[si++];
willybayot	0:4db361f2e6d5	1867	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
willybayot	0:4db361f2e6d5	1868	if (c == '.' \|\| i >= ni) {
willybayot	0:4db361f2e6d5	1869	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	1870	i = 8; ni = 11;
willybayot	0:4db361f2e6d5	1871	b <<= 2; continue;
willybayot	0:4db361f2e6d5	1872	}
willybayot	0:4db361f2e6d5	1873	if (c >= 0x80) { /* Extended character? */
willybayot	0:4db361f2e6d5	1874	b \|= 3; /* Eliminate NT flag */
willybayot	0:4db361f2e6d5	1875	#ifdef _EXCVT
willybayot	0:4db361f2e6d5	1876	c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
willybayot	0:4db361f2e6d5	1877	#else
willybayot	0:4db361f2e6d5	1878	#if !_DF1S
willybayot	0:4db361f2e6d5	1879	return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
willybayot	0:4db361f2e6d5	1880	#endif
willybayot	0:4db361f2e6d5	1881	#endif
willybayot	0:4db361f2e6d5	1882	}
willybayot	0:4db361f2e6d5	1883	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
willybayot	0:4db361f2e6d5	1884	d = (BYTE)p[si++]; /* Get 2nd byte */
willybayot	0:4db361f2e6d5	1885	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
willybayot	0:4db361f2e6d5	1886	return FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	1887	sfn[i++] = c;
willybayot	0:4db361f2e6d5	1888	sfn[i++] = d;
willybayot	0:4db361f2e6d5	1889	} else { /* Single byte code */
willybayot	0:4db361f2e6d5	1890	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
willybayot	0:4db361f2e6d5	1891	return FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	1892	if (IsUpper(c)) { /* ASCII large capital? */
willybayot	0:4db361f2e6d5	1893	b \|= 2;
willybayot	0:4db361f2e6d5	1894	} else {
willybayot	0:4db361f2e6d5	1895	if (IsLower(c)) { /* ASCII small capital? */
willybayot	0:4db361f2e6d5	1896	b \|= 1; c -= 0x20;
willybayot	0:4db361f2e6d5	1897	}
willybayot	0:4db361f2e6d5	1898	}
willybayot	0:4db361f2e6d5	1899	sfn[i++] = c;
willybayot	0:4db361f2e6d5	1900	}
willybayot	0:4db361f2e6d5	1901	}
willybayot	0:4db361f2e6d5	1902	path = &p[si]; / Return pointer to the next segment */
willybayot	0:4db361f2e6d5	1903	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
willybayot	0:4db361f2e6d5	1904
willybayot	0:4db361f2e6d5	1905	if (!i) return FR_INVALID_NAME; /* Reject nul string */
willybayot	0:4db361f2e6d5	1906	if (sfn[0] == DDE) sfn[0] = NDDE; /* When first character collides with DDE, replace it with 0x05 */
willybayot	0:4db361f2e6d5	1907
willybayot	0:4db361f2e6d5	1908	if (ni == 8) b <<= 2;
willybayot	0:4db361f2e6d5	1909	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
willybayot	0:4db361f2e6d5	1910	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
willybayot	0:4db361f2e6d5	1911
willybayot	0:4db361f2e6d5	1912	sfn[NS] = c; /* Store NT flag, File name is created */
willybayot	0:4db361f2e6d5	1913
willybayot	0:4db361f2e6d5	1914	return FR_OK;
willybayot	0:4db361f2e6d5	1915	#endif
willybayot	0:4db361f2e6d5	1916	}
willybayot	0:4db361f2e6d5	1917
willybayot	0:4db361f2e6d5	1918
willybayot	0:4db361f2e6d5	1919
willybayot	0:4db361f2e6d5	1920
willybayot	0:4db361f2e6d5	1921	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1922	/* Get file information from directory entry */
willybayot	0:4db361f2e6d5	1923	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1924	#if _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2
willybayot	0:4db361f2e6d5	1925	static
willybayot	0:4db361f2e6d5	1926	void get_fileinfo ( /* No return code */
willybayot	0:4db361f2e6d5	1927	DIR* dp, /* Pointer to the directory object */
willybayot	0:4db361f2e6d5	1928	FILINFO* fno /* Pointer to the file information to be filled */
willybayot	0:4db361f2e6d5	1929	)
willybayot	0:4db361f2e6d5	1930	{
willybayot	0:4db361f2e6d5	1931	UINT i;
willybayot	0:4db361f2e6d5	1932	TCHAR *p, c;
willybayot	0:4db361f2e6d5	1933
willybayot	0:4db361f2e6d5	1934
willybayot	0:4db361f2e6d5	1935	p = fno->fname;
willybayot	0:4db361f2e6d5	1936	if (dp->sect) { /* Get SFN */
willybayot	0:4db361f2e6d5	1937	BYTE *dir = dp->dir;
willybayot	0:4db361f2e6d5	1938
willybayot	0:4db361f2e6d5	1939	i = 0;
willybayot	0:4db361f2e6d5	1940	while (i < 11) { /* Copy name body and extension */
willybayot	0:4db361f2e6d5	1941	c = (TCHAR)dir[i++];
willybayot	0:4db361f2e6d5	1942	if (c == ' ') continue; /* Skip padding spaces */
willybayot	0:4db361f2e6d5	1943	if (c == NDDE) c = (TCHAR)DDE; /* Restore replaced DDE character */
willybayot	0:4db361f2e6d5	1944	if (i == 9) p++ = '.'; / Insert a . if extension is exist */
willybayot	0:4db361f2e6d5	1945	#if _USE_LFN
willybayot	0:4db361f2e6d5	1946	if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
willybayot	0:4db361f2e6d5	1947	c += 0x20; /* To lower */
willybayot	0:4db361f2e6d5	1948	#if _LFN_UNICODE
willybayot	0:4db361f2e6d5	1949	if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i]))
willybayot	0:4db361f2e6d5	1950	c = c << 8 \| dir[i++];
willybayot	0:4db361f2e6d5	1951	c = ff_convert(c, 1); /* OEM -> Unicode */
willybayot	0:4db361f2e6d5	1952	if (!c) c = '?';
willybayot	0:4db361f2e6d5	1953	#endif
willybayot	0:4db361f2e6d5	1954	#endif
willybayot	0:4db361f2e6d5	1955	*p++ = c;
willybayot	0:4db361f2e6d5	1956	}
willybayot	0:4db361f2e6d5	1957	fno->fattrib = dir[DIR_Attr]; /* Attribute */
willybayot	0:4db361f2e6d5	1958	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
willybayot	0:4db361f2e6d5	1959	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
willybayot	0:4db361f2e6d5	1960	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
willybayot	0:4db361f2e6d5	1961	}
willybayot	0:4db361f2e6d5	1962	p = 0; / Terminate SFN string by a \0 */
willybayot	0:4db361f2e6d5	1963
willybayot	0:4db361f2e6d5	1964	#if _USE_LFN
willybayot	0:4db361f2e6d5	1965	if (fno->lfname) {
willybayot	0:4db361f2e6d5	1966	WCHAR w, *lfn;
willybayot	0:4db361f2e6d5	1967
willybayot	0:4db361f2e6d5	1968	i = 0; p = fno->lfname;
willybayot	0:4db361f2e6d5	1969	if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
willybayot	0:4db361f2e6d5	1970	lfn = dp->lfn;
willybayot	0:4db361f2e6d5	1971	while ((w = lfn++) != 0) { / Get an LFN character */
willybayot	0:4db361f2e6d5	1972	#if !_LFN_UNICODE
willybayot	0:4db361f2e6d5	1973	w = ff_convert(w, 0); /* Unicode -> OEM */
willybayot	0:4db361f2e6d5	1974	if (!w) { i = 0; break; } /* No LFN if it could not be converted */
willybayot	0:4db361f2e6d5	1975	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
willybayot	0:4db361f2e6d5	1976	p[i++] = (TCHAR)(w >> 8);
willybayot	0:4db361f2e6d5	1977	#endif
willybayot	0:4db361f2e6d5	1978	if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
willybayot	0:4db361f2e6d5	1979	p[i++] = (TCHAR)w;
willybayot	0:4db361f2e6d5	1980	}
willybayot	0:4db361f2e6d5	1981	}
willybayot	0:4db361f2e6d5	1982	p[i] = 0; /* Terminate LFN string by a \0 */
willybayot	0:4db361f2e6d5	1983	}
willybayot	0:4db361f2e6d5	1984	#endif
willybayot	0:4db361f2e6d5	1985	}
willybayot	0:4db361f2e6d5	1986	#endif /* _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2*/
willybayot	0:4db361f2e6d5	1987
willybayot	0:4db361f2e6d5	1988
willybayot	0:4db361f2e6d5	1989
willybayot	0:4db361f2e6d5	1990
willybayot	0:4db361f2e6d5	1991	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1992	/* Get logical drive number from path name */
willybayot	0:4db361f2e6d5	1993	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	1994
willybayot	0:4db361f2e6d5	1995	static
willybayot	0:4db361f2e6d5	1996	int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
willybayot	0:4db361f2e6d5	1997	const TCHAR** path /* Pointer to pointer to the path name */
willybayot	0:4db361f2e6d5	1998	)
willybayot	0:4db361f2e6d5	1999	{
willybayot	0:4db361f2e6d5	2000	int vol = -1;
willybayot	0:4db361f2e6d5	2001
willybayot	0:4db361f2e6d5	2002
willybayot	0:4db361f2e6d5	2003	if (*path) {
willybayot	0:4db361f2e6d5	2004	vol = (*path)[0] - '0';
willybayot	0:4db361f2e6d5	2005	if ((UINT)vol < 9 && (path)[1] == ':') { / There is a drive number */
willybayot	0:4db361f2e6d5	2006	path += 2; / Get value and strip it */
willybayot	0:4db361f2e6d5	2007	if (vol >= _VOLUMES) vol = -1; /* Check if the drive number is valid */
willybayot	0:4db361f2e6d5	2008	} else { /* No drive number use default drive */
willybayot	0:4db361f2e6d5	2009	#if _FS_RPATH && _VOLUMES >= 2
willybayot	0:4db361f2e6d5	2010	vol = CurrVol; /* Current drive */
willybayot	0:4db361f2e6d5	2011	#else
willybayot	0:4db361f2e6d5	2012	vol = 0; /* Drive 0 */
willybayot	0:4db361f2e6d5	2013	#endif
willybayot	0:4db361f2e6d5	2014	}
willybayot	0:4db361f2e6d5	2015	}
willybayot	0:4db361f2e6d5	2016
willybayot	0:4db361f2e6d5	2017	return vol;
willybayot	0:4db361f2e6d5	2018	}
willybayot	0:4db361f2e6d5	2019
willybayot	0:4db361f2e6d5	2020
willybayot	0:4db361f2e6d5	2021
willybayot	0:4db361f2e6d5	2022
willybayot	0:4db361f2e6d5	2023	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2024	/* Follow a file path */
willybayot	0:4db361f2e6d5	2025	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2026
willybayot	0:4db361f2e6d5	2027	static
willybayot	0:4db361f2e6d5	2028	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
willybayot	0:4db361f2e6d5	2029	DIR* dp, /* Directory object to return last directory and found object */
willybayot	0:4db361f2e6d5	2030	const TCHAR* path /* Full-path string to find a file or directory */
willybayot	0:4db361f2e6d5	2031	)
willybayot	0:4db361f2e6d5	2032	{
willybayot	0:4db361f2e6d5	2033	FRESULT res;
willybayot	0:4db361f2e6d5	2034	BYTE *dir, ns;
willybayot	0:4db361f2e6d5	2035
willybayot	0:4db361f2e6d5	2036
willybayot	0:4db361f2e6d5	2037	#if _FS_RPATH
willybayot	0:4db361f2e6d5	2038	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
willybayot	0:4db361f2e6d5	2039	path++; dp->sclust = 0; /* Strip it and start from the root directory */
willybayot	0:4db361f2e6d5	2040	} else { /* No heading separator */
willybayot	0:4db361f2e6d5	2041	dp->sclust = dp->fs->cdir; /* Start from the current directory */
willybayot	0:4db361f2e6d5	2042	}
willybayot	0:4db361f2e6d5	2043	#else
willybayot	0:4db361f2e6d5	2044	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
willybayot	0:4db361f2e6d5	2045	path++;
willybayot	0:4db361f2e6d5	2046	dp->sclust = 0; /* Always start from the root directory */
willybayot	0:4db361f2e6d5	2047	#endif
willybayot	0:4db361f2e6d5	2048
willybayot	0:4db361f2e6d5	2049	if ((UINT)path < ' ') { / Null path name is the origin directory itself */
willybayot	0:4db361f2e6d5	2050	res = dir_sdi(dp, 0);
willybayot	0:4db361f2e6d5	2051	dp->dir = 0;
willybayot	0:4db361f2e6d5	2052	} else { /* Follow path */
willybayot	0:4db361f2e6d5	2053	for (;;) {
willybayot	0:4db361f2e6d5	2054	res = create_name(dp, &path); /* Get a segment name of the path */
willybayot	0:4db361f2e6d5	2055	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	2056	res = dir_find(dp); /* Find an object with the sagment name */
willybayot	0:4db361f2e6d5	2057	ns = dp->fn[NS];
willybayot	0:4db361f2e6d5	2058	if (res != FR_OK) { /* Failed to find the object */
willybayot	0:4db361f2e6d5	2059	if (res == FR_NO_FILE) { /* Object is not found */
willybayot	0:4db361f2e6d5	2060	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
willybayot	0:4db361f2e6d5	2061	dp->sclust = 0; dp->dir = 0; /* it is the root directory and stay there */
willybayot	0:4db361f2e6d5	2062	if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
willybayot	0:4db361f2e6d5	2063	res = FR_OK; /* Ended at the root directroy. Function completed. */
willybayot	0:4db361f2e6d5	2064	} else { /* Could not find the object */
willybayot	0:4db361f2e6d5	2065	if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
willybayot	0:4db361f2e6d5	2066	}
willybayot	0:4db361f2e6d5	2067	}
willybayot	0:4db361f2e6d5	2068	break;
willybayot	0:4db361f2e6d5	2069	}
willybayot	0:4db361f2e6d5	2070	if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
willybayot	0:4db361f2e6d5	2071	dir = dp->dir; /* Follow the sub-directory */
willybayot	0:4db361f2e6d5	2072	if (!(dir[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
willybayot	0:4db361f2e6d5	2073	res = FR_NO_PATH; break;
willybayot	0:4db361f2e6d5	2074	}
willybayot	0:4db361f2e6d5	2075	dp->sclust = ld_clust(dp->fs, dir);
willybayot	0:4db361f2e6d5	2076	}
willybayot	0:4db361f2e6d5	2077	}
willybayot	0:4db361f2e6d5	2078
willybayot	0:4db361f2e6d5	2079	return res;
willybayot	0:4db361f2e6d5	2080	}
willybayot	0:4db361f2e6d5	2081
willybayot	0:4db361f2e6d5	2082
willybayot	0:4db361f2e6d5	2083
willybayot	0:4db361f2e6d5	2084
willybayot	0:4db361f2e6d5	2085	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2086	/* Load a sector and check if it is an FAT boot sector */
willybayot	0:4db361f2e6d5	2087	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2088
willybayot	0:4db361f2e6d5	2089	static
willybayot	0:4db361f2e6d5	2090	BYTE check_fs ( /* 0:FAT boor sector, 1:Valid boor sector but not FAT, 2:Not a boot sector, 3:Disk error */
willybayot	0:4db361f2e6d5	2091	FATFS* fs, /* File system object */
willybayot	0:4db361f2e6d5	2092	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
willybayot	0:4db361f2e6d5	2093	)
willybayot	0:4db361f2e6d5	2094	{
willybayot	0:4db361f2e6d5	2095	fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
willybayot	0:4db361f2e6d5	2096	if (move_window(fs, sect) != FR_OK) /* Load boot record */
willybayot	0:4db361f2e6d5	2097	return 3;
willybayot	0:4db361f2e6d5	2098
willybayot	0:4db361f2e6d5	2099	if (LD_WORD(&fs->win.d8[BS_55AA]) != 0xAA55) /* Check boot record signature (always placed at offset 510 even if the sector size is >512) */
willybayot	0:4db361f2e6d5	2100	return 2;
willybayot	0:4db361f2e6d5	2101
willybayot	0:4db361f2e6d5	2102	if ((LD_DWORD(&fs->win.d8[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
willybayot	0:4db361f2e6d5	2103	return 0;
willybayot	0:4db361f2e6d5	2104	if ((LD_DWORD(&fs->win.d8[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
willybayot	0:4db361f2e6d5	2105	return 0;
willybayot	0:4db361f2e6d5	2106
willybayot	0:4db361f2e6d5	2107	return 1;
willybayot	0:4db361f2e6d5	2108	}
willybayot	0:4db361f2e6d5	2109
willybayot	0:4db361f2e6d5	2110
willybayot	0:4db361f2e6d5	2111
willybayot	0:4db361f2e6d5	2112
willybayot	0:4db361f2e6d5	2113	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2114	/* Find logical drive and check if the volume is mounted */
willybayot	0:4db361f2e6d5	2115	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2116
willybayot	0:4db361f2e6d5	2117	static
willybayot	0:4db361f2e6d5	2118	FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
willybayot	0:4db361f2e6d5	2119	FATFS** rfs, /* Pointer to pointer to the found file system object */
willybayot	0:4db361f2e6d5	2120	const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
willybayot	0:4db361f2e6d5	2121	BYTE wmode /* !=0: Check write protection for write access */
willybayot	0:4db361f2e6d5	2122	)
willybayot	0:4db361f2e6d5	2123	{
willybayot	0:4db361f2e6d5	2124	BYTE fmt;
willybayot	0:4db361f2e6d5	2125	int vol;
willybayot	0:4db361f2e6d5	2126	DSTATUS stat;
willybayot	0:4db361f2e6d5	2127	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
willybayot	0:4db361f2e6d5	2128	WORD nrsv;
willybayot	0:4db361f2e6d5	2129	FATFS *fs;
willybayot	0:4db361f2e6d5	2130
willybayot	0:4db361f2e6d5	2131
willybayot	0:4db361f2e6d5	2132	/* Get logical drive number from the path name */
willybayot	0:4db361f2e6d5	2133	*rfs = 0;
willybayot	0:4db361f2e6d5	2134	vol = get_ldnumber(path);
willybayot	0:4db361f2e6d5	2135	if (vol < 0) return FR_INVALID_DRIVE;
willybayot	0:4db361f2e6d5	2136
willybayot	0:4db361f2e6d5	2137	/* Check if the file system object is valid or not */
willybayot	0:4db361f2e6d5	2138	fs = FatFs[vol]; /* Get pointer to the file system object */
willybayot	0:4db361f2e6d5	2139	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
willybayot	0:4db361f2e6d5	2140
willybayot	0:4db361f2e6d5	2141	ENTER_FF(fs); /* Lock the volume */
willybayot	0:4db361f2e6d5	2142	rfs = fs; / Return pointer to the file system object */
willybayot	0:4db361f2e6d5	2143
willybayot	0:4db361f2e6d5	2144	if (fs->fs_type) { /* If the volume has been mounted */
willybayot	0:4db361f2e6d5	2145	stat = disk_status(fs->drv);
willybayot	0:4db361f2e6d5	2146	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
willybayot	0:4db361f2e6d5	2147	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
willybayot	0:4db361f2e6d5	2148	return FR_WRITE_PROTECTED;
willybayot	0:4db361f2e6d5	2149	return FR_OK; /* The file system object is valid */
willybayot	0:4db361f2e6d5	2150	}
willybayot	0:4db361f2e6d5	2151	}
willybayot	0:4db361f2e6d5	2152
willybayot	0:4db361f2e6d5	2153	/* The file system object is not valid. */
willybayot	0:4db361f2e6d5	2154	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
willybayot	0:4db361f2e6d5	2155
willybayot	0:4db361f2e6d5	2156	fs->fs_type = 0; /* Clear the file system object */
willybayot	0:4db361f2e6d5	2157	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
willybayot	0:4db361f2e6d5	2158	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
willybayot	0:4db361f2e6d5	2159	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
willybayot	0:4db361f2e6d5	2160	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
willybayot	0:4db361f2e6d5	2161	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
willybayot	0:4db361f2e6d5	2162	return FR_WRITE_PROTECTED;
willybayot	0:4db361f2e6d5	2163	#if _MAX_SS != 512 /* Get sector size (variable sector size cfg only) */
willybayot	0:4db361f2e6d5	2164	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
willybayot	0:4db361f2e6d5	2165	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	2166	#endif
willybayot	0:4db361f2e6d5	2167	/* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
willybayot	0:4db361f2e6d5	2168	bsect = 0;
willybayot	0:4db361f2e6d5	2169	fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
willybayot	0:4db361f2e6d5	2170	if (fmt == 1 \|\| (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
willybayot	0:4db361f2e6d5	2171	UINT i;
willybayot	0:4db361f2e6d5	2172	DWORD br[4];
willybayot	0:4db361f2e6d5	2173
willybayot	0:4db361f2e6d5	2174	for (i = 0; i < 4; i++) { /* Get partition offset */
willybayot	0:4db361f2e6d5	2175	BYTE pt = fs->win.d8+MBR_Table + i SZ_PTE;
willybayot	0:4db361f2e6d5	2176	br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
willybayot	0:4db361f2e6d5	2177	}
willybayot	0:4db361f2e6d5	2178	i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
willybayot	0:4db361f2e6d5	2179	if (i) i--;
willybayot	0:4db361f2e6d5	2180	do { /* Find an FAT volume */
willybayot	0:4db361f2e6d5	2181	bsect = br[i];
willybayot	0:4db361f2e6d5	2182	fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
willybayot	0:4db361f2e6d5	2183	} while (!LD2PT(vol) && fmt && ++i < 4);
willybayot	0:4db361f2e6d5	2184	}
willybayot	0:4db361f2e6d5	2185	if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
willybayot	0:4db361f2e6d5	2186	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
willybayot	0:4db361f2e6d5	2187
willybayot	0:4db361f2e6d5	2188	/* An FAT volume is found. Following code initializes the file system object */
willybayot	0:4db361f2e6d5	2189
willybayot	0:4db361f2e6d5	2190	if (LD_WORD(fs->win.d8+BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
willybayot	0:4db361f2e6d5	2191	return FR_NO_FILESYSTEM;
willybayot	0:4db361f2e6d5	2192
willybayot	0:4db361f2e6d5	2193	fasize = LD_WORD(fs->win.d8+BPB_FATSz16); /* Number of sectors per FAT */
willybayot	0:4db361f2e6d5	2194	if (!fasize) fasize = LD_DWORD(fs->win.d8+BPB_FATSz32);
willybayot	0:4db361f2e6d5	2195	fs->fsize = fasize;
willybayot	0:4db361f2e6d5	2196
willybayot	0:4db361f2e6d5	2197	fs->n_fats = fs->win.d8[BPB_NumFATs]; /* Number of FAT copies */
willybayot	0:4db361f2e6d5	2198	if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
willybayot	0:4db361f2e6d5	2199	return FR_NO_FILESYSTEM;
willybayot	0:4db361f2e6d5	2200	fasize = fs->n_fats; / Number of sectors for FAT area */
willybayot	0:4db361f2e6d5	2201
willybayot	0:4db361f2e6d5	2202	fs->csize = fs->win.d8[BPB_SecPerClus]; /* Number of sectors per cluster */
willybayot	0:4db361f2e6d5	2203	if (!fs->csize \|\| (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
willybayot	0:4db361f2e6d5	2204	return FR_NO_FILESYSTEM;
willybayot	0:4db361f2e6d5	2205
willybayot	0:4db361f2e6d5	2206	fs->n_rootdir = LD_WORD(fs->win.d8+BPB_RootEntCnt); /* Number of root directory entries */
willybayot	0:4db361f2e6d5	2207	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) /* (Must be sector aligned) */
willybayot	0:4db361f2e6d5	2208	return FR_NO_FILESYSTEM;
willybayot	0:4db361f2e6d5	2209
willybayot	0:4db361f2e6d5	2210	tsect = LD_WORD(fs->win.d8+BPB_TotSec16); /* Number of sectors on the volume */
willybayot	0:4db361f2e6d5	2211	if (!tsect) tsect = LD_DWORD(fs->win.d8+BPB_TotSec32);
willybayot	0:4db361f2e6d5	2212
willybayot	0:4db361f2e6d5	2213	nrsv = LD_WORD(fs->win.d8+BPB_RsvdSecCnt); /* Number of reserved sectors */
willybayot	0:4db361f2e6d5	2214	if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
willybayot	0:4db361f2e6d5	2215
willybayot	0:4db361f2e6d5	2216	/* Determine the FAT sub type */
willybayot	0:4db361f2e6d5	2217	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR); /* RSV+FAT+DIR */
willybayot	0:4db361f2e6d5	2218	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
willybayot	0:4db361f2e6d5	2219	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
willybayot	0:4db361f2e6d5	2220	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
willybayot	0:4db361f2e6d5	2221	fmt = FS_FAT12;
willybayot	0:4db361f2e6d5	2222	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
willybayot	0:4db361f2e6d5	2223	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
willybayot	0:4db361f2e6d5	2224
willybayot	0:4db361f2e6d5	2225	/* Boundaries and Limits */
willybayot	0:4db361f2e6d5	2226	fs->n_fatent = nclst + 2; /* Number of FAT entries */
willybayot	0:4db361f2e6d5	2227	fs->volbase = bsect; /* Volume start sector */
willybayot	0:4db361f2e6d5	2228	fs->fatbase = bsect + nrsv; /* FAT start sector */
willybayot	0:4db361f2e6d5	2229	fs->database = bsect + sysect; /* Data start sector */
willybayot	0:4db361f2e6d5	2230	if (fmt == FS_FAT32) {
willybayot	0:4db361f2e6d5	2231	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
willybayot	0:4db361f2e6d5	2232	fs->dirbase = LD_DWORD(fs->win.d8+BPB_RootClus); /* Root directory start cluster */
willybayot	0:4db361f2e6d5	2233	szbfat = fs->n_fatent * 4; /* (Required FAT size) */
willybayot	0:4db361f2e6d5	2234	} else {
willybayot	0:4db361f2e6d5	2235	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
willybayot	0:4db361f2e6d5	2236	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
willybayot	0:4db361f2e6d5	2237	szbfat = (fmt == FS_FAT16) ? /* (Required FAT size) */
willybayot	0:4db361f2e6d5	2238	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
willybayot	0:4db361f2e6d5	2239	}
willybayot	0:4db361f2e6d5	2240	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than required) */
willybayot	0:4db361f2e6d5	2241	return FR_NO_FILESYSTEM;
willybayot	0:4db361f2e6d5	2242
willybayot	0:4db361f2e6d5	2243	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	2244	/* Initialize cluster allocation information */
willybayot	0:4db361f2e6d5	2245	fs->last_clust = fs->free_clust = 0xFFFFFFFF;
willybayot	0:4db361f2e6d5	2246
willybayot	0:4db361f2e6d5	2247	/* Get fsinfo if available */
willybayot	0:4db361f2e6d5	2248	fs->fsi_flag = 0x80;
willybayot	0:4db361f2e6d5	2249	if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo is 1 */
willybayot	0:4db361f2e6d5	2250	&& LD_WORD(fs->win.d8+BPB_FSInfo) == 1
willybayot	0:4db361f2e6d5	2251	&& move_window(fs, bsect + 1) == FR_OK)
willybayot	0:4db361f2e6d5	2252	{
willybayot	0:4db361f2e6d5	2253	fs->fsi_flag = 0;
willybayot	0:4db361f2e6d5	2254	if (LD_WORD(fs->win.d8+BS_55AA) == 0xAA55 /* Load FSINFO data if available */
willybayot	0:4db361f2e6d5	2255	&& LD_DWORD(fs->win.d8+FSI_LeadSig) == 0x41615252
willybayot	0:4db361f2e6d5	2256	&& LD_DWORD(fs->win.d8+FSI_StrucSig) == 0x61417272)
willybayot	0:4db361f2e6d5	2257	{
willybayot	0:4db361f2e6d5	2258	#if !_FS_NOFSINFO
willybayot	0:4db361f2e6d5	2259	fs->free_clust = LD_DWORD(fs->win.d8+FSI_Free_Count);
willybayot	0:4db361f2e6d5	2260	#endif
willybayot	0:4db361f2e6d5	2261	fs->last_clust = LD_DWORD(fs->win.d8+FSI_Nxt_Free);
willybayot	0:4db361f2e6d5	2262	}
willybayot	0:4db361f2e6d5	2263	}
willybayot	0:4db361f2e6d5	2264	#endif
willybayot	0:4db361f2e6d5	2265	fs->fs_type = fmt; /* FAT sub-type */
willybayot	0:4db361f2e6d5	2266	fs->id = ++Fsid; /* File system mount ID */
willybayot	0:4db361f2e6d5	2267	#if _FS_RPATH
willybayot	0:4db361f2e6d5	2268	fs->cdir = 0; /* Current directory (root dir) */
willybayot	0:4db361f2e6d5	2269	#endif
willybayot	0:4db361f2e6d5	2270	#if _FS_LOCK /* Clear file lock semaphores */
willybayot	0:4db361f2e6d5	2271	clear_lock(fs);
willybayot	0:4db361f2e6d5	2272	#endif
willybayot	0:4db361f2e6d5	2273
willybayot	0:4db361f2e6d5	2274	return FR_OK;
willybayot	0:4db361f2e6d5	2275	}
willybayot	0:4db361f2e6d5	2276
willybayot	0:4db361f2e6d5	2277
willybayot	0:4db361f2e6d5	2278
willybayot	0:4db361f2e6d5	2279
willybayot	0:4db361f2e6d5	2280	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2281	/* Check if the file/directory object is valid or not */
willybayot	0:4db361f2e6d5	2282	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2283
willybayot	0:4db361f2e6d5	2284	static
willybayot	0:4db361f2e6d5	2285	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
willybayot	0:4db361f2e6d5	2286	void* obj /* Pointer to the object FIL/DIR to check validity */
willybayot	0:4db361f2e6d5	2287	)
willybayot	0:4db361f2e6d5	2288	{
willybayot	0:4db361f2e6d5	2289	FIL fil = (FIL)obj; /* Assuming offset of .fs and .id in the FIL/DIR structure is identical */
willybayot	0:4db361f2e6d5	2290
willybayot	0:4db361f2e6d5	2291
willybayot	0:4db361f2e6d5	2292	if (!fil \|\| !fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id)
willybayot	0:4db361f2e6d5	2293	return FR_INVALID_OBJECT;
willybayot	0:4db361f2e6d5	2294
willybayot	0:4db361f2e6d5	2295	ENTER_FF(fil->fs); /* Lock file system */
willybayot	0:4db361f2e6d5	2296
willybayot	0:4db361f2e6d5	2297	if (disk_status(fil->fs->drv) & STA_NOINIT)
willybayot	0:4db361f2e6d5	2298	return FR_NOT_READY;
willybayot	0:4db361f2e6d5	2299
willybayot	0:4db361f2e6d5	2300	return FR_OK;
willybayot	0:4db361f2e6d5	2301	}
willybayot	0:4db361f2e6d5	2302
willybayot	0:4db361f2e6d5	2303
willybayot	0:4db361f2e6d5	2304
willybayot	0:4db361f2e6d5	2305
willybayot	0:4db361f2e6d5	2306	/*--------------------------------------------------------------------------
willybayot	0:4db361f2e6d5	2307
willybayot	0:4db361f2e6d5	2308	Public Functions
willybayot	0:4db361f2e6d5	2309
willybayot	0:4db361f2e6d5	2310	--------------------------------------------------------------------------*/
willybayot	0:4db361f2e6d5	2311
willybayot	0:4db361f2e6d5	2312
willybayot	0:4db361f2e6d5	2313
willybayot	0:4db361f2e6d5	2314	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2315	/* Mount/Unmount a Logical Drive */
willybayot	0:4db361f2e6d5	2316	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2317
willybayot	0:4db361f2e6d5	2318	FRESULT f_mount (
willybayot	0:4db361f2e6d5	2319	FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
willybayot	0:4db361f2e6d5	2320	const TCHAR* path, /* Logical drive number to be mounted/unmounted */
willybayot	0:4db361f2e6d5	2321	BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
willybayot	0:4db361f2e6d5	2322	)
willybayot	0:4db361f2e6d5	2323	{
willybayot	0:4db361f2e6d5	2324	FATFS *cfs;
willybayot	0:4db361f2e6d5	2325	int vol;
willybayot	0:4db361f2e6d5	2326	FRESULT res;
willybayot	0:4db361f2e6d5	2327	const TCHAR *rp = path;
willybayot	0:4db361f2e6d5	2328
willybayot	0:4db361f2e6d5	2329	vol = get_ldnumber(&rp);
willybayot	0:4db361f2e6d5	2330	if (vol < 0) return FR_INVALID_DRIVE;
willybayot	0:4db361f2e6d5	2331	cfs = FatFs[vol]; /* Pointer to fs object */
willybayot	0:4db361f2e6d5	2332
willybayot	0:4db361f2e6d5	2333	if (cfs) {
willybayot	0:4db361f2e6d5	2334	#if _FS_LOCK
willybayot	0:4db361f2e6d5	2335	clear_lock(cfs);
willybayot	0:4db361f2e6d5	2336	#endif
willybayot	0:4db361f2e6d5	2337	#if _FS_REENTRANT /* Discard sync object of the current volume */
willybayot	0:4db361f2e6d5	2338	if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
willybayot	0:4db361f2e6d5	2339	#endif
willybayot	0:4db361f2e6d5	2340	cfs->fs_type = 0; /* Clear old fs object */
willybayot	0:4db361f2e6d5	2341	}
willybayot	0:4db361f2e6d5	2342
willybayot	0:4db361f2e6d5	2343	if (fs) {
willybayot	0:4db361f2e6d5	2344	fs->fs_type = 0; /* Clear new fs object */
willybayot	0:4db361f2e6d5	2345	#if _FS_REENTRANT /* Create sync object for the new volume */
willybayot	0:4db361f2e6d5	2346	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
willybayot	0:4db361f2e6d5	2347	#endif
willybayot	0:4db361f2e6d5	2348	}
willybayot	0:4db361f2e6d5	2349	FatFs[vol] = fs; /* Register new fs object */
willybayot	0:4db361f2e6d5	2350
willybayot	0:4db361f2e6d5	2351	if (!fs \|\| opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
willybayot	0:4db361f2e6d5	2352
willybayot	0:4db361f2e6d5	2353	res = find_volume(&fs, &path, 0); /* Force mounted the volume */
willybayot	0:4db361f2e6d5	2354	LEAVE_FF(fs, res);
willybayot	0:4db361f2e6d5	2355	}
willybayot	0:4db361f2e6d5	2356
willybayot	0:4db361f2e6d5	2357
willybayot	0:4db361f2e6d5	2358
willybayot	0:4db361f2e6d5	2359
willybayot	0:4db361f2e6d5	2360	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2361	/* Open or Create a File */
willybayot	0:4db361f2e6d5	2362	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2363
willybayot	0:4db361f2e6d5	2364	FRESULT f_open (
willybayot	0:4db361f2e6d5	2365	FIL* fp, /* Pointer to the blank file object */
willybayot	0:4db361f2e6d5	2366	const TCHAR* path, /* Pointer to the file name */
willybayot	0:4db361f2e6d5	2367	BYTE mode /* Access mode and file open mode flags */
willybayot	0:4db361f2e6d5	2368	)
willybayot	0:4db361f2e6d5	2369	{
willybayot	0:4db361f2e6d5	2370	FRESULT res;
willybayot	0:4db361f2e6d5	2371	DIR dj;
willybayot	0:4db361f2e6d5	2372	BYTE *dir;
willybayot	0:4db361f2e6d5	2373	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	2374
willybayot	0:4db361f2e6d5	2375
willybayot	0:4db361f2e6d5	2376	if (!fp) return FR_INVALID_OBJECT;
willybayot	0:4db361f2e6d5	2377	fp->fs = 0; /* Clear file object */
willybayot	0:4db361f2e6d5	2378
willybayot	0:4db361f2e6d5	2379	/* Get logical drive number */
willybayot	0:4db361f2e6d5	2380	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	2381	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
willybayot	0:4db361f2e6d5	2382	res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
willybayot	0:4db361f2e6d5	2383	#else
willybayot	0:4db361f2e6d5	2384	mode &= FA_READ;
willybayot	0:4db361f2e6d5	2385	res = find_volume(&dj.fs, &path, 0);
willybayot	0:4db361f2e6d5	2386	#endif
willybayot	0:4db361f2e6d5	2387	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2388	INIT_BUF(dj);
willybayot	0:4db361f2e6d5	2389	res = follow_path(&dj, path); /* Follow the file path */
willybayot	0:4db361f2e6d5	2390	dir = dj.dir;
willybayot	0:4db361f2e6d5	2391	#if !_FS_READONLY /* R/W configuration */
willybayot	0:4db361f2e6d5	2392	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2393	if (!dir) /* Default directory itself */
willybayot	0:4db361f2e6d5	2394	res = FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	2395	#if _FS_LOCK
willybayot	0:4db361f2e6d5	2396	else
willybayot	0:4db361f2e6d5	2397	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
willybayot	0:4db361f2e6d5	2398	#endif
willybayot	0:4db361f2e6d5	2399	}
willybayot	0:4db361f2e6d5	2400	/* Create or Open a file */
willybayot	0:4db361f2e6d5	2401	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
willybayot	0:4db361f2e6d5	2402	DWORD dw, cl;
willybayot	0:4db361f2e6d5	2403
willybayot	0:4db361f2e6d5	2404	if (res != FR_OK) { /* No file, create new */
willybayot	0:4db361f2e6d5	2405	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
willybayot	0:4db361f2e6d5	2406	#if _FS_LOCK
willybayot	0:4db361f2e6d5	2407	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
willybayot	0:4db361f2e6d5	2408	#else
willybayot	0:4db361f2e6d5	2409	res = dir_register(&dj);
willybayot	0:4db361f2e6d5	2410	#endif
willybayot	0:4db361f2e6d5	2411	mode \|= FA_CREATE_ALWAYS; /* File is created */
willybayot	0:4db361f2e6d5	2412	dir = dj.dir; /* New entry */
willybayot	0:4db361f2e6d5	2413	}
willybayot	0:4db361f2e6d5	2414	else { /* Any object is already existing */
willybayot	0:4db361f2e6d5	2415	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
willybayot	0:4db361f2e6d5	2416	res = FR_DENIED;
willybayot	0:4db361f2e6d5	2417	} else {
willybayot	0:4db361f2e6d5	2418	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
willybayot	0:4db361f2e6d5	2419	res = FR_EXIST;
willybayot	0:4db361f2e6d5	2420	}
willybayot	0:4db361f2e6d5	2421	}
willybayot	0:4db361f2e6d5	2422	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
willybayot	0:4db361f2e6d5	2423	dw = get_fattime(); /* Created time */
willybayot	0:4db361f2e6d5	2424	ST_DWORD(dir+DIR_CrtTime, dw);
willybayot	0:4db361f2e6d5	2425	dir[DIR_Attr] = 0; /* Reset attribute */
willybayot	0:4db361f2e6d5	2426	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
willybayot	0:4db361f2e6d5	2427	cl = ld_clust(dj.fs, dir); /* Get start cluster */
willybayot	0:4db361f2e6d5	2428	st_clust(dir, 0); /* cluster = 0 */
willybayot	0:4db361f2e6d5	2429	dj.fs->wflag = 1;
willybayot	0:4db361f2e6d5	2430	if (cl) { /* Remove the cluster chain if exist */
willybayot	0:4db361f2e6d5	2431	dw = dj.fs->winsect;
willybayot	0:4db361f2e6d5	2432	res = remove_chain(dj.fs, cl);
willybayot	0:4db361f2e6d5	2433	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2434	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
willybayot	0:4db361f2e6d5	2435	res = move_window(dj.fs, dw);
willybayot	0:4db361f2e6d5	2436	}
willybayot	0:4db361f2e6d5	2437	}
willybayot	0:4db361f2e6d5	2438	}
willybayot	0:4db361f2e6d5	2439	}
willybayot	0:4db361f2e6d5	2440	else { /* Open an existing file */
willybayot	0:4db361f2e6d5	2441	if (res == FR_OK) { /* Follow succeeded */
willybayot	0:4db361f2e6d5	2442	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
willybayot	0:4db361f2e6d5	2443	res = FR_NO_FILE;
willybayot	0:4db361f2e6d5	2444	} else {
willybayot	0:4db361f2e6d5	2445	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
willybayot	0:4db361f2e6d5	2446	res = FR_DENIED;
willybayot	0:4db361f2e6d5	2447	}
willybayot	0:4db361f2e6d5	2448	}
willybayot	0:4db361f2e6d5	2449	}
willybayot	0:4db361f2e6d5	2450	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2451	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
willybayot	0:4db361f2e6d5	2452	mode \|= FA__WRITTEN;
willybayot	0:4db361f2e6d5	2453	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
willybayot	0:4db361f2e6d5	2454	fp->dir_ptr = dir;
willybayot	0:4db361f2e6d5	2455	#if _FS_LOCK
willybayot	0:4db361f2e6d5	2456	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
willybayot	0:4db361f2e6d5	2457	if (!fp->lockid) res = FR_INT_ERR;
willybayot	0:4db361f2e6d5	2458	#endif
willybayot	0:4db361f2e6d5	2459	}
willybayot	0:4db361f2e6d5	2460
willybayot	0:4db361f2e6d5	2461	#else /* R/O configuration */
willybayot	0:4db361f2e6d5	2462	if (res == FR_OK) { /* Follow succeeded */
willybayot	0:4db361f2e6d5	2463	dir = dj.dir;
willybayot	0:4db361f2e6d5	2464	if (!dir) { /* Current directory itself */
willybayot	0:4db361f2e6d5	2465	res = FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	2466	} else {
willybayot	0:4db361f2e6d5	2467	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
willybayot	0:4db361f2e6d5	2468	res = FR_NO_FILE;
willybayot	0:4db361f2e6d5	2469	}
willybayot	0:4db361f2e6d5	2470	}
willybayot	0:4db361f2e6d5	2471	#endif
willybayot	0:4db361f2e6d5	2472	FREE_BUF();
willybayot	0:4db361f2e6d5	2473
willybayot	0:4db361f2e6d5	2474	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2475	fp->flag = mode; /* File access mode */
willybayot	0:4db361f2e6d5	2476	fp->err = 0; /* Clear error flag */
willybayot	0:4db361f2e6d5	2477	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
willybayot	0:4db361f2e6d5	2478	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
willybayot	0:4db361f2e6d5	2479	fp->fptr = 0; /* File pointer */
willybayot	0:4db361f2e6d5	2480	fp->dsect = 0;
willybayot	0:4db361f2e6d5	2481	#if _USE_FASTSEEK
willybayot	0:4db361f2e6d5	2482	fp->cltbl = 0; /* Normal seek mode */
willybayot	0:4db361f2e6d5	2483	#endif
willybayot	0:4db361f2e6d5	2484	fp->fs = dj.fs; /* Validate file object */
willybayot	0:4db361f2e6d5	2485	fp->id = fp->fs->id;
willybayot	0:4db361f2e6d5	2486	}
willybayot	0:4db361f2e6d5	2487	}
willybayot	0:4db361f2e6d5	2488
willybayot	0:4db361f2e6d5	2489	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	2490	}
willybayot	0:4db361f2e6d5	2491
willybayot	0:4db361f2e6d5	2492
willybayot	0:4db361f2e6d5	2493
willybayot	0:4db361f2e6d5	2494
willybayot	0:4db361f2e6d5	2495	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2496	/* Read File */
willybayot	0:4db361f2e6d5	2497	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2498
willybayot	0:4db361f2e6d5	2499	FRESULT f_read (
willybayot	0:4db361f2e6d5	2500	FIL* fp, /* Pointer to the file object */
willybayot	0:4db361f2e6d5	2501	void* buff, /* Pointer to data buffer */
willybayot	0:4db361f2e6d5	2502	UINT btr, /* Number of bytes to read */
willybayot	0:4db361f2e6d5	2503	UINT* br /* Pointer to number of bytes read */
willybayot	0:4db361f2e6d5	2504	)
willybayot	0:4db361f2e6d5	2505	{
willybayot	0:4db361f2e6d5	2506	FRESULT res;
willybayot	0:4db361f2e6d5	2507	DWORD clst, sect, remain;
willybayot	0:4db361f2e6d5	2508	UINT rcnt, cc;
willybayot	0:4db361f2e6d5	2509	BYTE csect, rbuff = (BYTE)buff;
willybayot	0:4db361f2e6d5	2510
willybayot	0:4db361f2e6d5	2511
willybayot	0:4db361f2e6d5	2512	br = 0; / Clear read byte counter */
willybayot	0:4db361f2e6d5	2513
willybayot	0:4db361f2e6d5	2514	res = validate(fp); /* Check validity */
willybayot	0:4db361f2e6d5	2515	if (res != FR_OK) LEAVE_FF(fp->fs, res);
willybayot	0:4db361f2e6d5	2516	if (fp->err) /* Check error */
willybayot	0:4db361f2e6d5	2517	LEAVE_FF(fp->fs, (FRESULT)fp->err);
willybayot	0:4db361f2e6d5	2518	if (!(fp->flag & FA_READ)) /* Check access mode */
willybayot	0:4db361f2e6d5	2519	LEAVE_FF(fp->fs, FR_DENIED);
willybayot	0:4db361f2e6d5	2520	remain = fp->fsize - fp->fptr;
willybayot	0:4db361f2e6d5	2521	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
willybayot	0:4db361f2e6d5	2522
willybayot	0:4db361f2e6d5	2523	for ( ; btr; /* Repeat until all data read */
willybayot	0:4db361f2e6d5	2524	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
willybayot	0:4db361f2e6d5	2525	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
willybayot	0:4db361f2e6d5	2526	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
willybayot	0:4db361f2e6d5	2527	if (!csect) { /* On the cluster boundary? */
willybayot	0:4db361f2e6d5	2528	if (fp->fptr == 0) { /* On the top of the file? */
willybayot	0:4db361f2e6d5	2529	clst = fp->sclust; /* Follow from the origin */
willybayot	0:4db361f2e6d5	2530	} else { /* Middle or end of the file */
willybayot	0:4db361f2e6d5	2531	#if _USE_FASTSEEK
willybayot	0:4db361f2e6d5	2532	if (fp->cltbl)
willybayot	0:4db361f2e6d5	2533	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
willybayot	0:4db361f2e6d5	2534	else
willybayot	0:4db361f2e6d5	2535	#endif
willybayot	0:4db361f2e6d5	2536	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
willybayot	0:4db361f2e6d5	2537	}
willybayot	0:4db361f2e6d5	2538	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	2539	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2540	fp->clust = clst; /* Update current cluster */
willybayot	0:4db361f2e6d5	2541	}
willybayot	0:4db361f2e6d5	2542	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
willybayot	0:4db361f2e6d5	2543	if (!sect) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	2544	sect += csect;
willybayot	0:4db361f2e6d5	2545	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
willybayot	0:4db361f2e6d5	2546	if (cc) { /* Read maximum contiguous sectors directly */
willybayot	0:4db361f2e6d5	2547	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
willybayot	0:4db361f2e6d5	2548	cc = fp->fs->csize - csect;
willybayot	0:4db361f2e6d5	2549	if (disk_read(fp->fs->drv, rbuff, sect, cc))
willybayot	0:4db361f2e6d5	2550	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2551	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
willybayot	0:4db361f2e6d5	2552	#if _FS_TINY
willybayot	0:4db361f2e6d5	2553	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
willybayot	0:4db361f2e6d5	2554	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win.d8, SS(fp->fs));
willybayot	0:4db361f2e6d5	2555	#else
willybayot	0:4db361f2e6d5	2556	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
willybayot	0:4db361f2e6d5	2557	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf.d8, SS(fp->fs));
willybayot	0:4db361f2e6d5	2558	#endif
willybayot	0:4db361f2e6d5	2559	#endif
willybayot	0:4db361f2e6d5	2560	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
willybayot	0:4db361f2e6d5	2561	continue;
willybayot	0:4db361f2e6d5	2562	}
willybayot	0:4db361f2e6d5	2563	#if !_FS_TINY
willybayot	0:4db361f2e6d5	2564	if (fp->dsect != sect) { /* Load data sector if not in cache */
willybayot	0:4db361f2e6d5	2565	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	2566	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
willybayot	0:4db361f2e6d5	2567	if (disk_write(fp->fs->drv, fp->buf.d8, fp->dsect, 1))
willybayot	0:4db361f2e6d5	2568	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2569	fp->flag &= ~FA__DIRTY;
willybayot	0:4db361f2e6d5	2570	}
willybayot	0:4db361f2e6d5	2571	#endif
willybayot	0:4db361f2e6d5	2572	if (disk_read(fp->fs->drv, fp->buf.d8, sect, 1)) /* Fill sector cache */
willybayot	0:4db361f2e6d5	2573	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2574	}
willybayot	0:4db361f2e6d5	2575	#endif
willybayot	0:4db361f2e6d5	2576	fp->dsect = sect;
willybayot	0:4db361f2e6d5	2577	}
willybayot	0:4db361f2e6d5	2578	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
willybayot	0:4db361f2e6d5	2579	if (rcnt > btr) rcnt = btr;
willybayot	0:4db361f2e6d5	2580	#if _FS_TINY
willybayot	0:4db361f2e6d5	2581	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
willybayot	0:4db361f2e6d5	2582	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2583	mem_cpy(rbuff, &fp->fs->win.d8[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
willybayot	0:4db361f2e6d5	2584	#else
willybayot	0:4db361f2e6d5	2585	mem_cpy(rbuff, &fp->buf.d8[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
willybayot	0:4db361f2e6d5	2586	#endif
willybayot	0:4db361f2e6d5	2587	}
willybayot	0:4db361f2e6d5	2588
willybayot	0:4db361f2e6d5	2589	LEAVE_FF(fp->fs, FR_OK);
willybayot	0:4db361f2e6d5	2590	}
willybayot	0:4db361f2e6d5	2591
willybayot	0:4db361f2e6d5	2592
willybayot	0:4db361f2e6d5	2593
willybayot	0:4db361f2e6d5	2594
willybayot	0:4db361f2e6d5	2595	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	2596	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2597	/* Write File */
willybayot	0:4db361f2e6d5	2598	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2599
willybayot	0:4db361f2e6d5	2600	FRESULT f_write (
willybayot	0:4db361f2e6d5	2601	FIL* fp, /* Pointer to the file object */
willybayot	0:4db361f2e6d5	2602	const void buff, / Pointer to the data to be written */
willybayot	0:4db361f2e6d5	2603	UINT btw, /* Number of bytes to write */
willybayot	0:4db361f2e6d5	2604	UINT* bw /* Pointer to number of bytes written */
willybayot	0:4db361f2e6d5	2605	)
willybayot	0:4db361f2e6d5	2606	{
willybayot	0:4db361f2e6d5	2607	FRESULT res;
willybayot	0:4db361f2e6d5	2608	DWORD clst, sect;
willybayot	0:4db361f2e6d5	2609	UINT wcnt, cc;
willybayot	0:4db361f2e6d5	2610	const BYTE wbuff = (const BYTE)buff;
willybayot	0:4db361f2e6d5	2611	BYTE csect;
willybayot	0:4db361f2e6d5	2612
willybayot	0:4db361f2e6d5	2613
willybayot	0:4db361f2e6d5	2614	bw = 0; / Clear write byte counter */
willybayot	0:4db361f2e6d5	2615
willybayot	0:4db361f2e6d5	2616	res = validate(fp); /* Check validity */
willybayot	0:4db361f2e6d5	2617	if (res != FR_OK) LEAVE_FF(fp->fs, res);
willybayot	0:4db361f2e6d5	2618	if (fp->err) /* Check error */
willybayot	0:4db361f2e6d5	2619	LEAVE_FF(fp->fs, (FRESULT)fp->err);
willybayot	0:4db361f2e6d5	2620	if (!(fp->flag & FA_WRITE)) /* Check access mode */
willybayot	0:4db361f2e6d5	2621	LEAVE_FF(fp->fs, FR_DENIED);
willybayot	0:4db361f2e6d5	2622	if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
willybayot	0:4db361f2e6d5	2623
willybayot	0:4db361f2e6d5	2624	for ( ; btw; /* Repeat until all data written */
willybayot	0:4db361f2e6d5	2625	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
willybayot	0:4db361f2e6d5	2626	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
willybayot	0:4db361f2e6d5	2627	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
willybayot	0:4db361f2e6d5	2628	if (!csect) { /* On the cluster boundary? */
willybayot	0:4db361f2e6d5	2629	if (fp->fptr == 0) { /* On the top of the file? */
willybayot	0:4db361f2e6d5	2630	clst = fp->sclust; /* Follow from the origin */
willybayot	0:4db361f2e6d5	2631	if (clst == 0) /* When no cluster is allocated, */
willybayot	0:4db361f2e6d5	2632	fp->sclust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
willybayot	0:4db361f2e6d5	2633	} else { /* Middle or end of the file */
willybayot	0:4db361f2e6d5	2634	#if _USE_FASTSEEK
willybayot	0:4db361f2e6d5	2635	if (fp->cltbl)
willybayot	0:4db361f2e6d5	2636	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
willybayot	0:4db361f2e6d5	2637	else
willybayot	0:4db361f2e6d5	2638	#endif
willybayot	0:4db361f2e6d5	2639	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
willybayot	0:4db361f2e6d5	2640	}
willybayot	0:4db361f2e6d5	2641	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
willybayot	0:4db361f2e6d5	2642	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	2643	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2644	fp->clust = clst; /* Update current cluster */
willybayot	0:4db361f2e6d5	2645	}
willybayot	0:4db361f2e6d5	2646	#if _FS_TINY
willybayot	0:4db361f2e6d5	2647	if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
willybayot	0:4db361f2e6d5	2648	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2649	#else
willybayot	0:4db361f2e6d5	2650	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
willybayot	0:4db361f2e6d5	2651	if (disk_write(fp->fs->drv, fp->buf.d8, fp->dsect, 1))
willybayot	0:4db361f2e6d5	2652	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2653	fp->flag &= ~FA__DIRTY;
willybayot	0:4db361f2e6d5	2654	}
willybayot	0:4db361f2e6d5	2655	#endif
willybayot	0:4db361f2e6d5	2656	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
willybayot	0:4db361f2e6d5	2657	if (!sect) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	2658	sect += csect;
willybayot	0:4db361f2e6d5	2659	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
willybayot	0:4db361f2e6d5	2660	if (cc) { /* Write maximum contiguous sectors directly */
willybayot	0:4db361f2e6d5	2661	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
willybayot	0:4db361f2e6d5	2662	cc = fp->fs->csize - csect;
willybayot	0:4db361f2e6d5	2663	if (disk_write(fp->fs->drv, wbuff, sect, cc))
willybayot	0:4db361f2e6d5	2664	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2665	#if _FS_MINIMIZE <= 2
willybayot	0:4db361f2e6d5	2666	#if _FS_TINY
willybayot	0:4db361f2e6d5	2667	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
willybayot	0:4db361f2e6d5	2668	mem_cpy(fp->fs->win.d8, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
willybayot	0:4db361f2e6d5	2669	fp->fs->wflag = 0;
willybayot	0:4db361f2e6d5	2670	}
willybayot	0:4db361f2e6d5	2671	#else
willybayot	0:4db361f2e6d5	2672	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
willybayot	0:4db361f2e6d5	2673	mem_cpy(fp->buf.d8, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
willybayot	0:4db361f2e6d5	2674	fp->flag &= ~FA__DIRTY;
willybayot	0:4db361f2e6d5	2675	}
willybayot	0:4db361f2e6d5	2676	#endif
willybayot	0:4db361f2e6d5	2677	#endif
willybayot	0:4db361f2e6d5	2678	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
willybayot	0:4db361f2e6d5	2679	continue;
willybayot	0:4db361f2e6d5	2680	}
willybayot	0:4db361f2e6d5	2681	#if _FS_TINY
willybayot	0:4db361f2e6d5	2682	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
willybayot	0:4db361f2e6d5	2683	if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2684	fp->fs->winsect = sect;
willybayot	0:4db361f2e6d5	2685	}
willybayot	0:4db361f2e6d5	2686	#else
willybayot	0:4db361f2e6d5	2687	if (fp->dsect != sect) { /* Fill sector cache with file data */
willybayot	0:4db361f2e6d5	2688	if (fp->fptr < fp->fsize &&
willybayot	0:4db361f2e6d5	2689	disk_read(fp->fs->drv, fp->buf.d8, sect, 1))
willybayot	0:4db361f2e6d5	2690	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2691	}
willybayot	0:4db361f2e6d5	2692	#endif
willybayot	0:4db361f2e6d5	2693	fp->dsect = sect;
willybayot	0:4db361f2e6d5	2694	}
willybayot	0:4db361f2e6d5	2695	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
willybayot	0:4db361f2e6d5	2696	if (wcnt > btw) wcnt = btw;
willybayot	0:4db361f2e6d5	2697	#if _FS_TINY
willybayot	0:4db361f2e6d5	2698	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
willybayot	0:4db361f2e6d5	2699	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2700	mem_cpy(&fp->fs->win.d8[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
willybayot	0:4db361f2e6d5	2701	fp->fs->wflag = 1;
willybayot	0:4db361f2e6d5	2702	#else
willybayot	0:4db361f2e6d5	2703	mem_cpy(&fp->buf.d8[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
willybayot	0:4db361f2e6d5	2704	fp->flag \|= FA__DIRTY;
willybayot	0:4db361f2e6d5	2705	#endif
willybayot	0:4db361f2e6d5	2706	}
willybayot	0:4db361f2e6d5	2707
willybayot	0:4db361f2e6d5	2708	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
willybayot	0:4db361f2e6d5	2709	fp->flag \|= FA__WRITTEN; /* Set file change flag */
willybayot	0:4db361f2e6d5	2710
willybayot	0:4db361f2e6d5	2711	LEAVE_FF(fp->fs, FR_OK);
willybayot	0:4db361f2e6d5	2712	}
willybayot	0:4db361f2e6d5	2713
willybayot	0:4db361f2e6d5	2714
willybayot	0:4db361f2e6d5	2715
willybayot	0:4db361f2e6d5	2716
willybayot	0:4db361f2e6d5	2717	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2718	/* Synchronize the File */
willybayot	0:4db361f2e6d5	2719	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2720
willybayot	0:4db361f2e6d5	2721	FRESULT f_sync (
willybayot	0:4db361f2e6d5	2722	FIL* fp /* Pointer to the file object */
willybayot	0:4db361f2e6d5	2723	)
willybayot	0:4db361f2e6d5	2724	{
willybayot	0:4db361f2e6d5	2725	FRESULT res;
willybayot	0:4db361f2e6d5	2726	DWORD tm;
willybayot	0:4db361f2e6d5	2727	BYTE *dir;
willybayot	0:4db361f2e6d5	2728
willybayot	0:4db361f2e6d5	2729
willybayot	0:4db361f2e6d5	2730	res = validate(fp); /* Check validity of the object */
willybayot	0:4db361f2e6d5	2731	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2732	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
willybayot	0:4db361f2e6d5	2733	/* Write-back dirty buffer */
willybayot	0:4db361f2e6d5	2734	#if !_FS_TINY
willybayot	0:4db361f2e6d5	2735	if (fp->flag & FA__DIRTY) {
willybayot	0:4db361f2e6d5	2736	if (disk_write(fp->fs->drv, fp->buf.d8, fp->dsect, 1))
willybayot	0:4db361f2e6d5	2737	LEAVE_FF(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2738	fp->flag &= ~FA__DIRTY;
willybayot	0:4db361f2e6d5	2739	}
willybayot	0:4db361f2e6d5	2740	#endif
willybayot	0:4db361f2e6d5	2741	/* Update the directory entry */
willybayot	0:4db361f2e6d5	2742	res = move_window(fp->fs, fp->dir_sect);
willybayot	0:4db361f2e6d5	2743	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2744	dir = fp->dir_ptr;
willybayot	0:4db361f2e6d5	2745	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
willybayot	0:4db361f2e6d5	2746	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
willybayot	0:4db361f2e6d5	2747	st_clust(dir, fp->sclust); /* Update start cluster */
willybayot	0:4db361f2e6d5	2748	tm = get_fattime(); /* Update updated time */
willybayot	0:4db361f2e6d5	2749	ST_DWORD(dir+DIR_WrtTime, tm);
willybayot	0:4db361f2e6d5	2750	ST_WORD(dir+DIR_LstAccDate, 0);
willybayot	0:4db361f2e6d5	2751	fp->flag &= ~FA__WRITTEN;
willybayot	0:4db361f2e6d5	2752	fp->fs->wflag = 1;
willybayot	0:4db361f2e6d5	2753	res = sync_fs(fp->fs);
willybayot	0:4db361f2e6d5	2754	}
willybayot	0:4db361f2e6d5	2755	}
willybayot	0:4db361f2e6d5	2756	}
willybayot	0:4db361f2e6d5	2757
willybayot	0:4db361f2e6d5	2758	LEAVE_FF(fp->fs, res);
willybayot	0:4db361f2e6d5	2759	}
willybayot	0:4db361f2e6d5	2760
willybayot	0:4db361f2e6d5	2761	#endif /* !_FS_READONLY */
willybayot	0:4db361f2e6d5	2762
willybayot	0:4db361f2e6d5	2763
willybayot	0:4db361f2e6d5	2764
willybayot	0:4db361f2e6d5	2765
willybayot	0:4db361f2e6d5	2766	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2767	/* Close File */
willybayot	0:4db361f2e6d5	2768	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2769
willybayot	0:4db361f2e6d5	2770	FRESULT f_close (
willybayot	0:4db361f2e6d5	2771	FIL fp / Pointer to the file object to be closed */
willybayot	0:4db361f2e6d5	2772	)
willybayot	0:4db361f2e6d5	2773	{
willybayot	0:4db361f2e6d5	2774	FRESULT res;
willybayot	0:4db361f2e6d5	2775
willybayot	0:4db361f2e6d5	2776
willybayot	0:4db361f2e6d5	2777	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	2778	res = f_sync(fp); /* Flush cached data */
willybayot	0:4db361f2e6d5	2779	if (res == FR_OK)
willybayot	0:4db361f2e6d5	2780	#endif
willybayot	0:4db361f2e6d5	2781	{
willybayot	0:4db361f2e6d5	2782	res = validate(fp); /* Lock volume */
willybayot	0:4db361f2e6d5	2783	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2784	#if _FS_REENTRANT
willybayot	0:4db361f2e6d5	2785	FATFS *fs = fp->fs;
willybayot	0:4db361f2e6d5	2786	#endif
willybayot	0:4db361f2e6d5	2787	#if _FS_LOCK
willybayot	0:4db361f2e6d5	2788	res = dec_lock(fp->lockid); /* Decrement file open counter */
willybayot	0:4db361f2e6d5	2789	if (res == FR_OK)
willybayot	0:4db361f2e6d5	2790	#endif
willybayot	0:4db361f2e6d5	2791	fp->fs = 0; /* Invalidate file object */
willybayot	0:4db361f2e6d5	2792	#if _FS_REENTRANT
willybayot	0:4db361f2e6d5	2793	unlock_fs(fs, FR_OK); /* Unlock volume */
willybayot	0:4db361f2e6d5	2794	#endif
willybayot	0:4db361f2e6d5	2795	}
willybayot	0:4db361f2e6d5	2796	}
willybayot	0:4db361f2e6d5	2797	return res;
willybayot	0:4db361f2e6d5	2798	}
willybayot	0:4db361f2e6d5	2799
willybayot	0:4db361f2e6d5	2800
willybayot	0:4db361f2e6d5	2801
willybayot	0:4db361f2e6d5	2802
willybayot	0:4db361f2e6d5	2803	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2804	/* Change Current Directory or Current Drive, Get Current Directory */
willybayot	0:4db361f2e6d5	2805	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2806
willybayot	0:4db361f2e6d5	2807	#if _FS_RPATH >= 1
willybayot	0:4db361f2e6d5	2808	#if _VOLUMES >= 2
willybayot	0:4db361f2e6d5	2809	FRESULT f_chdrive (
willybayot	0:4db361f2e6d5	2810	const TCHAR* path /* Drive number */
willybayot	0:4db361f2e6d5	2811	)
willybayot	0:4db361f2e6d5	2812	{
willybayot	0:4db361f2e6d5	2813	int vol;
willybayot	0:4db361f2e6d5	2814
willybayot	0:4db361f2e6d5	2815
willybayot	0:4db361f2e6d5	2816	vol = get_ldnumber(&path);
willybayot	0:4db361f2e6d5	2817	if (vol < 0) return FR_INVALID_DRIVE;
willybayot	0:4db361f2e6d5	2818
willybayot	0:4db361f2e6d5	2819	CurrVol = (BYTE)vol;
willybayot	0:4db361f2e6d5	2820
willybayot	0:4db361f2e6d5	2821	return FR_OK;
willybayot	0:4db361f2e6d5	2822	}
willybayot	0:4db361f2e6d5	2823	#endif
willybayot	0:4db361f2e6d5	2824
willybayot	0:4db361f2e6d5	2825
willybayot	0:4db361f2e6d5	2826	FRESULT f_chdir (
willybayot	0:4db361f2e6d5	2827	const TCHAR* path /* Pointer to the directory path */
willybayot	0:4db361f2e6d5	2828	)
willybayot	0:4db361f2e6d5	2829	{
willybayot	0:4db361f2e6d5	2830	FRESULT res;
willybayot	0:4db361f2e6d5	2831	DIR dj;
willybayot	0:4db361f2e6d5	2832	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	2833
willybayot	0:4db361f2e6d5	2834
willybayot	0:4db361f2e6d5	2835	/* Get logical drive number */
willybayot	0:4db361f2e6d5	2836	res = find_volume(&dj.fs, &path, 0);
willybayot	0:4db361f2e6d5	2837	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2838	INIT_BUF(dj);
willybayot	0:4db361f2e6d5	2839	res = follow_path(&dj, path); /* Follow the path */
willybayot	0:4db361f2e6d5	2840	FREE_BUF();
willybayot	0:4db361f2e6d5	2841	if (res == FR_OK) { /* Follow completed */
willybayot	0:4db361f2e6d5	2842	if (!dj.dir) {
willybayot	0:4db361f2e6d5	2843	dj.fs->cdir = dj.sclust; /* Start directory itself */
willybayot	0:4db361f2e6d5	2844	} else {
willybayot	0:4db361f2e6d5	2845	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
willybayot	0:4db361f2e6d5	2846	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
willybayot	0:4db361f2e6d5	2847	else
willybayot	0:4db361f2e6d5	2848	res = FR_NO_PATH; /* Reached but a file */
willybayot	0:4db361f2e6d5	2849	}
willybayot	0:4db361f2e6d5	2850	}
willybayot	0:4db361f2e6d5	2851	if (res == FR_NO_FILE) res = FR_NO_PATH;
willybayot	0:4db361f2e6d5	2852	}
willybayot	0:4db361f2e6d5	2853
willybayot	0:4db361f2e6d5	2854	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	2855	}
willybayot	0:4db361f2e6d5	2856
willybayot	0:4db361f2e6d5	2857
willybayot	0:4db361f2e6d5	2858	#if _FS_RPATH >= 2
willybayot	0:4db361f2e6d5	2859	FRESULT f_getcwd (
willybayot	0:4db361f2e6d5	2860	TCHAR* buff, /* Pointer to the directory path */
willybayot	0:4db361f2e6d5	2861	UINT len /* Size of path */
willybayot	0:4db361f2e6d5	2862	)
willybayot	0:4db361f2e6d5	2863	{
willybayot	0:4db361f2e6d5	2864	FRESULT res;
willybayot	0:4db361f2e6d5	2865	DIR dj;
willybayot	0:4db361f2e6d5	2866	UINT i, n;
willybayot	0:4db361f2e6d5	2867	DWORD ccl;
willybayot	0:4db361f2e6d5	2868	TCHAR *tp;
willybayot	0:4db361f2e6d5	2869	FILINFO fno;
willybayot	0:4db361f2e6d5	2870	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	2871
willybayot	0:4db361f2e6d5	2872
willybayot	0:4db361f2e6d5	2873	*buff = 0;
willybayot	0:4db361f2e6d5	2874	/* Get logical drive number */
willybayot	0:4db361f2e6d5	2875	res = find_volume(&dj.fs, (const TCHAR*)&buff, 0); / Get current volume */
willybayot	0:4db361f2e6d5	2876	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2877	INIT_BUF(dj);
willybayot	0:4db361f2e6d5	2878	i = len; /* Bottom of buffer (directory stack base) */
willybayot	0:4db361f2e6d5	2879	dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
willybayot	0:4db361f2e6d5	2880	while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
willybayot	0:4db361f2e6d5	2881	res = dir_sdi(&dj, 1); /* Get parent directory */
willybayot	0:4db361f2e6d5	2882	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	2883	res = dir_read(&dj, 0);
willybayot	0:4db361f2e6d5	2884	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	2885	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
willybayot	0:4db361f2e6d5	2886	res = dir_sdi(&dj, 0);
willybayot	0:4db361f2e6d5	2887	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	2888	do { /* Find the entry links to the child directory */
willybayot	0:4db361f2e6d5	2889	res = dir_read(&dj, 0);
willybayot	0:4db361f2e6d5	2890	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	2891	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
willybayot	0:4db361f2e6d5	2892	res = dir_next(&dj, 0);
willybayot	0:4db361f2e6d5	2893	} while (res == FR_OK);
willybayot	0:4db361f2e6d5	2894	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
willybayot	0:4db361f2e6d5	2895	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	2896	#if _USE_LFN
willybayot	0:4db361f2e6d5	2897	fno.lfname = buff;
willybayot	0:4db361f2e6d5	2898	fno.lfsize = i;
willybayot	0:4db361f2e6d5	2899	#endif
willybayot	0:4db361f2e6d5	2900	get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
willybayot	0:4db361f2e6d5	2901	tp = fno.fname;
willybayot	0:4db361f2e6d5	2902	#if _USE_LFN
willybayot	0:4db361f2e6d5	2903	if (*buff) tp = buff;
willybayot	0:4db361f2e6d5	2904	#endif
willybayot	0:4db361f2e6d5	2905	for (n = 0; tp[n]; n++) ;
willybayot	0:4db361f2e6d5	2906	if (i < n + 3) {
willybayot	0:4db361f2e6d5	2907	res = FR_NOT_ENOUGH_CORE; break;
willybayot	0:4db361f2e6d5	2908	}
willybayot	0:4db361f2e6d5	2909	while (n) buff[--i] = tp[--n];
willybayot	0:4db361f2e6d5	2910	buff[--i] = '/';
willybayot	0:4db361f2e6d5	2911	}
willybayot	0:4db361f2e6d5	2912	tp = buff;
willybayot	0:4db361f2e6d5	2913	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	2914	#if _VOLUMES >= 2
willybayot	0:4db361f2e6d5	2915	tp++ = '0' + CurrVol; / Put drive number */
willybayot	0:4db361f2e6d5	2916	*tp++ = ':';
willybayot	0:4db361f2e6d5	2917	#endif
willybayot	0:4db361f2e6d5	2918	if (i == len) { /* Root-directory */
willybayot	0:4db361f2e6d5	2919	*tp++ = '/';
willybayot	0:4db361f2e6d5	2920	} else { /* Sub-directroy */
willybayot	0:4db361f2e6d5	2921	do /* Add stacked path str */
willybayot	0:4db361f2e6d5	2922	*tp++ = buff[i++];
willybayot	0:4db361f2e6d5	2923	while (i < len);
willybayot	0:4db361f2e6d5	2924	}
willybayot	0:4db361f2e6d5	2925	}
willybayot	0:4db361f2e6d5	2926	*tp = 0;
willybayot	0:4db361f2e6d5	2927	FREE_BUF();
willybayot	0:4db361f2e6d5	2928	}
willybayot	0:4db361f2e6d5	2929
willybayot	0:4db361f2e6d5	2930	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	2931	}
willybayot	0:4db361f2e6d5	2932	#endif /* _FS_RPATH >= 2 */
willybayot	0:4db361f2e6d5	2933	#endif /* _FS_RPATH >= 1 */
willybayot	0:4db361f2e6d5	2934
willybayot	0:4db361f2e6d5	2935
willybayot	0:4db361f2e6d5	2936
willybayot	0:4db361f2e6d5	2937	#if _FS_MINIMIZE <= 2
willybayot	0:4db361f2e6d5	2938	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2939	/* Seek File R/W Pointer */
willybayot	0:4db361f2e6d5	2940	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	2941
willybayot	0:4db361f2e6d5	2942	FRESULT f_lseek (
willybayot	0:4db361f2e6d5	2943	FIL* fp, /* Pointer to the file object */
willybayot	0:4db361f2e6d5	2944	DWORD ofs /* File pointer from top of file */
willybayot	0:4db361f2e6d5	2945	)
willybayot	0:4db361f2e6d5	2946	{
willybayot	0:4db361f2e6d5	2947	FRESULT res;
willybayot	0:4db361f2e6d5	2948
willybayot	0:4db361f2e6d5	2949
willybayot	0:4db361f2e6d5	2950	res = validate(fp); /* Check validity of the object */
willybayot	0:4db361f2e6d5	2951	if (res != FR_OK) LEAVE_FF(fp->fs, res);
willybayot	0:4db361f2e6d5	2952	if (fp->err) /* Check error */
willybayot	0:4db361f2e6d5	2953	LEAVE_FF(fp->fs, (FRESULT)fp->err);
willybayot	0:4db361f2e6d5	2954
willybayot	0:4db361f2e6d5	2955	#if _USE_FASTSEEK
willybayot	0:4db361f2e6d5	2956	if (fp->cltbl) { /* Fast seek */
willybayot	0:4db361f2e6d5	2957	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
willybayot	0:4db361f2e6d5	2958
willybayot	0:4db361f2e6d5	2959	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
willybayot	0:4db361f2e6d5	2960	tbl = fp->cltbl;
willybayot	0:4db361f2e6d5	2961	tlen = tbl++; ulen = 2; / Given table size and required table size */
willybayot	0:4db361f2e6d5	2962	cl = fp->sclust; /* Top of the chain */
willybayot	0:4db361f2e6d5	2963	if (cl) {
willybayot	0:4db361f2e6d5	2964	do {
willybayot	0:4db361f2e6d5	2965	/* Get a fragment */
willybayot	0:4db361f2e6d5	2966	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
willybayot	0:4db361f2e6d5	2967	do {
willybayot	0:4db361f2e6d5	2968	pcl = cl; ncl++;
willybayot	0:4db361f2e6d5	2969	cl = get_fat(fp->fs, cl);
willybayot	0:4db361f2e6d5	2970	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	2971	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2972	} while (cl == pcl + 1);
willybayot	0:4db361f2e6d5	2973	if (ulen <= tlen) { /* Store the length and top of the fragment */
willybayot	0:4db361f2e6d5	2974	tbl++ = ncl; tbl++ = tcl;
willybayot	0:4db361f2e6d5	2975	}
willybayot	0:4db361f2e6d5	2976	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
willybayot	0:4db361f2e6d5	2977	}
willybayot	0:4db361f2e6d5	2978	fp->cltbl = ulen; / Number of items used */
willybayot	0:4db361f2e6d5	2979	if (ulen <= tlen)
willybayot	0:4db361f2e6d5	2980	tbl = 0; / Terminate table */
willybayot	0:4db361f2e6d5	2981	else
willybayot	0:4db361f2e6d5	2982	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
willybayot	0:4db361f2e6d5	2983
willybayot	0:4db361f2e6d5	2984	} else { /* Fast seek */
willybayot	0:4db361f2e6d5	2985	if (ofs > fp->fsize) /* Clip offset at the file size */
willybayot	0:4db361f2e6d5	2986	ofs = fp->fsize;
willybayot	0:4db361f2e6d5	2987	fp->fptr = ofs; /* Set file pointer */
willybayot	0:4db361f2e6d5	2988	if (ofs) {
willybayot	0:4db361f2e6d5	2989	fp->clust = clmt_clust(fp, ofs - 1);
willybayot	0:4db361f2e6d5	2990	dsc = clust2sect(fp->fs, fp->clust);
willybayot	0:4db361f2e6d5	2991	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	2992	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
willybayot	0:4db361f2e6d5	2993	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
willybayot	0:4db361f2e6d5	2994	#if !_FS_TINY
willybayot	0:4db361f2e6d5	2995	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	2996	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
willybayot	0:4db361f2e6d5	2997	if (disk_write(fp->fs->drv, fp->buf.d8, fp->dsect, 1))
willybayot	0:4db361f2e6d5	2998	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	2999	fp->flag &= ~FA__DIRTY;
willybayot	0:4db361f2e6d5	3000	}
willybayot	0:4db361f2e6d5	3001	#endif
willybayot	0:4db361f2e6d5	3002	if (disk_read(fp->fs->drv, fp->buf.d8, dsc, 1)) /* Load current sector */
willybayot	0:4db361f2e6d5	3003	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	3004	#endif
willybayot	0:4db361f2e6d5	3005	fp->dsect = dsc;
willybayot	0:4db361f2e6d5	3006	}
willybayot	0:4db361f2e6d5	3007	}
willybayot	0:4db361f2e6d5	3008	}
willybayot	0:4db361f2e6d5	3009	} else
willybayot	0:4db361f2e6d5	3010	#endif
willybayot	0:4db361f2e6d5	3011
willybayot	0:4db361f2e6d5	3012	/* Normal Seek */
willybayot	0:4db361f2e6d5	3013	{
willybayot	0:4db361f2e6d5	3014	DWORD clst, bcs, nsect, ifptr;
willybayot	0:4db361f2e6d5	3015
willybayot	0:4db361f2e6d5	3016	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
willybayot	0:4db361f2e6d5	3017	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	3018	&& !(fp->flag & FA_WRITE)
willybayot	0:4db361f2e6d5	3019	#endif
willybayot	0:4db361f2e6d5	3020	) ofs = fp->fsize;
willybayot	0:4db361f2e6d5	3021
willybayot	0:4db361f2e6d5	3022	ifptr = fp->fptr;
willybayot	0:4db361f2e6d5	3023	fp->fptr = nsect = 0;
willybayot	0:4db361f2e6d5	3024	if (ofs) {
willybayot	0:4db361f2e6d5	3025	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
willybayot	0:4db361f2e6d5	3026	if (ifptr > 0 &&
willybayot	0:4db361f2e6d5	3027	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
willybayot	0:4db361f2e6d5	3028	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
willybayot	0:4db361f2e6d5	3029	ofs -= fp->fptr;
willybayot	0:4db361f2e6d5	3030	clst = fp->clust;
willybayot	0:4db361f2e6d5	3031	} else { /* When seek to back cluster, */
willybayot	0:4db361f2e6d5	3032	clst = fp->sclust; /* start from the first cluster */
willybayot	0:4db361f2e6d5	3033	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	3034	if (clst == 0) { /* If no cluster chain, create a new chain */
willybayot	0:4db361f2e6d5	3035	clst = create_chain(fp->fs, 0);
willybayot	0:4db361f2e6d5	3036	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	3037	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	3038	fp->sclust = clst;
willybayot	0:4db361f2e6d5	3039	}
willybayot	0:4db361f2e6d5	3040	#endif
willybayot	0:4db361f2e6d5	3041	fp->clust = clst;
willybayot	0:4db361f2e6d5	3042	}
willybayot	0:4db361f2e6d5	3043	if (clst != 0) {
willybayot	0:4db361f2e6d5	3044	while (ofs > bcs) { /* Cluster following loop */
willybayot	0:4db361f2e6d5	3045	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	3046	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
willybayot	0:4db361f2e6d5	3047	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
willybayot	0:4db361f2e6d5	3048	if (clst == 0) { /* When disk gets full, clip file size */
willybayot	0:4db361f2e6d5	3049	ofs = bcs; break;
willybayot	0:4db361f2e6d5	3050	}
willybayot	0:4db361f2e6d5	3051	} else
willybayot	0:4db361f2e6d5	3052	#endif
willybayot	0:4db361f2e6d5	3053	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
willybayot	0:4db361f2e6d5	3054	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	3055	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	3056	fp->clust = clst;
willybayot	0:4db361f2e6d5	3057	fp->fptr += bcs;
willybayot	0:4db361f2e6d5	3058	ofs -= bcs;
willybayot	0:4db361f2e6d5	3059	}
willybayot	0:4db361f2e6d5	3060	fp->fptr += ofs;
willybayot	0:4db361f2e6d5	3061	if (ofs % SS(fp->fs)) {
willybayot	0:4db361f2e6d5	3062	nsect = clust2sect(fp->fs, clst); /* Current sector */
willybayot	0:4db361f2e6d5	3063	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	3064	nsect += ofs / SS(fp->fs);
willybayot	0:4db361f2e6d5	3065	}
willybayot	0:4db361f2e6d5	3066	}
willybayot	0:4db361f2e6d5	3067	}
willybayot	0:4db361f2e6d5	3068	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
willybayot	0:4db361f2e6d5	3069	#if !_FS_TINY
willybayot	0:4db361f2e6d5	3070	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	3071	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
willybayot	0:4db361f2e6d5	3072	if (disk_write(fp->fs->drv, fp->buf.d8, fp->dsect, 1))
willybayot	0:4db361f2e6d5	3073	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	3074	fp->flag &= ~FA__DIRTY;
willybayot	0:4db361f2e6d5	3075	}
willybayot	0:4db361f2e6d5	3076	#endif
willybayot	0:4db361f2e6d5	3077	if (disk_read(fp->fs->drv, fp->buf.d8, nsect, 1)) /* Fill sector cache */
willybayot	0:4db361f2e6d5	3078	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	3079	#endif
willybayot	0:4db361f2e6d5	3080	fp->dsect = nsect;
willybayot	0:4db361f2e6d5	3081	}
willybayot	0:4db361f2e6d5	3082	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	3083	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
willybayot	0:4db361f2e6d5	3084	fp->fsize = fp->fptr;
willybayot	0:4db361f2e6d5	3085	fp->flag \|= FA__WRITTEN;
willybayot	0:4db361f2e6d5	3086	}
willybayot	0:4db361f2e6d5	3087	#endif
willybayot	0:4db361f2e6d5	3088	}
willybayot	0:4db361f2e6d5	3089
willybayot	0:4db361f2e6d5	3090	LEAVE_FF(fp->fs, res);
willybayot	0:4db361f2e6d5	3091	}
willybayot	0:4db361f2e6d5	3092
willybayot	0:4db361f2e6d5	3093
willybayot	0:4db361f2e6d5	3094
willybayot	0:4db361f2e6d5	3095	#if _FS_MINIMIZE <= 1
willybayot	0:4db361f2e6d5	3096	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3097	/* Create a Directory Object */
willybayot	0:4db361f2e6d5	3098	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3099
willybayot	0:4db361f2e6d5	3100	FRESULT f_opendir (
willybayot	0:4db361f2e6d5	3101	DIR* dp, /* Pointer to directory object to create */
willybayot	0:4db361f2e6d5	3102	const TCHAR* path /* Pointer to the directory path */
willybayot	0:4db361f2e6d5	3103	)
willybayot	0:4db361f2e6d5	3104	{
willybayot	0:4db361f2e6d5	3105	FRESULT res;
willybayot	0:4db361f2e6d5	3106	FATFS* fs;
willybayot	0:4db361f2e6d5	3107	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	3108
willybayot	0:4db361f2e6d5	3109
willybayot	0:4db361f2e6d5	3110	if (!dp) return FR_INVALID_OBJECT;
willybayot	0:4db361f2e6d5	3111
willybayot	0:4db361f2e6d5	3112	/* Get logical drive number */
willybayot	0:4db361f2e6d5	3113	res = find_volume(&fs, &path, 0);
willybayot	0:4db361f2e6d5	3114	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3115	dp->fs = fs;
willybayot	0:4db361f2e6d5	3116	INIT_BUF(*dp);
willybayot	0:4db361f2e6d5	3117	res = follow_path(dp, path); /* Follow the path to the directory */
willybayot	0:4db361f2e6d5	3118	FREE_BUF();
willybayot	0:4db361f2e6d5	3119	if (res == FR_OK) { /* Follow completed */
willybayot	0:4db361f2e6d5	3120	if (dp->dir) { /* It is not the origin directory itself */
willybayot	0:4db361f2e6d5	3121	if (dp->dir[DIR_Attr] & AM_DIR) /* The object is a sub directory */
willybayot	0:4db361f2e6d5	3122	dp->sclust = ld_clust(fs, dp->dir);
willybayot	0:4db361f2e6d5	3123	else /* The object is a file */
willybayot	0:4db361f2e6d5	3124	res = FR_NO_PATH;
willybayot	0:4db361f2e6d5	3125	}
willybayot	0:4db361f2e6d5	3126	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3127	dp->id = fs->id;
willybayot	0:4db361f2e6d5	3128	res = dir_sdi(dp, 0); /* Rewind directory */
willybayot	0:4db361f2e6d5	3129	#if _FS_LOCK
willybayot	0:4db361f2e6d5	3130	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3131	if (dp->sclust) {
willybayot	0:4db361f2e6d5	3132	dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
willybayot	0:4db361f2e6d5	3133	if (!dp->lockid)
willybayot	0:4db361f2e6d5	3134	res = FR_TOO_MANY_OPEN_FILES;
willybayot	0:4db361f2e6d5	3135	} else {
willybayot	0:4db361f2e6d5	3136	dp->lockid = 0; /* Root directory need not to be locked */
willybayot	0:4db361f2e6d5	3137	}
willybayot	0:4db361f2e6d5	3138	}
willybayot	0:4db361f2e6d5	3139	#endif
willybayot	0:4db361f2e6d5	3140	}
willybayot	0:4db361f2e6d5	3141	}
willybayot	0:4db361f2e6d5	3142	if (res == FR_NO_FILE) res = FR_NO_PATH;
willybayot	0:4db361f2e6d5	3143	}
willybayot	0:4db361f2e6d5	3144	if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
willybayot	0:4db361f2e6d5	3145
willybayot	0:4db361f2e6d5	3146	LEAVE_FF(fs, res);
willybayot	0:4db361f2e6d5	3147	}
willybayot	0:4db361f2e6d5	3148
willybayot	0:4db361f2e6d5	3149
willybayot	0:4db361f2e6d5	3150
willybayot	0:4db361f2e6d5	3151
willybayot	0:4db361f2e6d5	3152	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3153	/* Close Directory */
willybayot	0:4db361f2e6d5	3154	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3155
willybayot	0:4db361f2e6d5	3156	FRESULT f_closedir (
willybayot	0:4db361f2e6d5	3157	DIR dp / Pointer to the directory object to be closed */
willybayot	0:4db361f2e6d5	3158	)
willybayot	0:4db361f2e6d5	3159	{
willybayot	0:4db361f2e6d5	3160	FRESULT res;
willybayot	0:4db361f2e6d5	3161
willybayot	0:4db361f2e6d5	3162
willybayot	0:4db361f2e6d5	3163	res = validate(dp);
willybayot	0:4db361f2e6d5	3164	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3165	#if _FS_REENTRANT
willybayot	0:4db361f2e6d5	3166	FATFS *fs = dp->fs;
willybayot	0:4db361f2e6d5	3167	#endif
willybayot	0:4db361f2e6d5	3168	#if _FS_LOCK
willybayot	0:4db361f2e6d5	3169	if (dp->lockid) /* Decrement sub-directory open counter */
willybayot	0:4db361f2e6d5	3170	res = dec_lock(dp->lockid);
willybayot	0:4db361f2e6d5	3171	if (res == FR_OK)
willybayot	0:4db361f2e6d5	3172	#endif
willybayot	0:4db361f2e6d5	3173	dp->fs = 0; /* Invalidate directory object */
willybayot	0:4db361f2e6d5	3174	#if _FS_REENTRANT
willybayot	0:4db361f2e6d5	3175	unlock_fs(fs, FR_OK); /* Unlock volume */
willybayot	0:4db361f2e6d5	3176	#endif
willybayot	0:4db361f2e6d5	3177	}
willybayot	0:4db361f2e6d5	3178	return res;
willybayot	0:4db361f2e6d5	3179	}
willybayot	0:4db361f2e6d5	3180
willybayot	0:4db361f2e6d5	3181
willybayot	0:4db361f2e6d5	3182
willybayot	0:4db361f2e6d5	3183
willybayot	0:4db361f2e6d5	3184	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3185	/* Read Directory Entries in Sequence */
willybayot	0:4db361f2e6d5	3186	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3187
willybayot	0:4db361f2e6d5	3188	FRESULT f_readdir (
willybayot	0:4db361f2e6d5	3189	DIR* dp, /* Pointer to the open directory object */
willybayot	0:4db361f2e6d5	3190	FILINFO* fno /* Pointer to file information to return */
willybayot	0:4db361f2e6d5	3191	)
willybayot	0:4db361f2e6d5	3192	{
willybayot	0:4db361f2e6d5	3193	FRESULT res;
willybayot	0:4db361f2e6d5	3194	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	3195
willybayot	0:4db361f2e6d5	3196
willybayot	0:4db361f2e6d5	3197	res = validate(dp); /* Check validity of the object */
willybayot	0:4db361f2e6d5	3198	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3199	if (!fno) {
willybayot	0:4db361f2e6d5	3200	res = dir_sdi(dp, 0); /* Rewind the directory object */
willybayot	0:4db361f2e6d5	3201	} else {
willybayot	0:4db361f2e6d5	3202	INIT_BUF(*dp);
willybayot	0:4db361f2e6d5	3203	res = dir_read(dp, 0); /* Read an item */
willybayot	0:4db361f2e6d5	3204	if (res == FR_NO_FILE) { /* Reached end of directory */
willybayot	0:4db361f2e6d5	3205	dp->sect = 0;
willybayot	0:4db361f2e6d5	3206	res = FR_OK;
willybayot	0:4db361f2e6d5	3207	}
willybayot	0:4db361f2e6d5	3208	if (res == FR_OK) { /* A valid entry is found */
willybayot	0:4db361f2e6d5	3209	get_fileinfo(dp, fno); /* Get the object information */
willybayot	0:4db361f2e6d5	3210	res = dir_next(dp, 0); /* Increment index for next */
willybayot	0:4db361f2e6d5	3211	if (res == FR_NO_FILE) {
willybayot	0:4db361f2e6d5	3212	dp->sect = 0;
willybayot	0:4db361f2e6d5	3213	res = FR_OK;
willybayot	0:4db361f2e6d5	3214	}
willybayot	0:4db361f2e6d5	3215	}
willybayot	0:4db361f2e6d5	3216	FREE_BUF();
willybayot	0:4db361f2e6d5	3217	}
willybayot	0:4db361f2e6d5	3218	}
willybayot	0:4db361f2e6d5	3219
willybayot	0:4db361f2e6d5	3220	LEAVE_FF(dp->fs, res);
willybayot	0:4db361f2e6d5	3221	}
willybayot	0:4db361f2e6d5	3222
willybayot	0:4db361f2e6d5	3223
willybayot	0:4db361f2e6d5	3224
willybayot	0:4db361f2e6d5	3225	#if _FS_MINIMIZE == 0
willybayot	0:4db361f2e6d5	3226	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3227	/* Get File Status */
willybayot	0:4db361f2e6d5	3228	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3229
willybayot	0:4db361f2e6d5	3230	FRESULT f_stat (
willybayot	0:4db361f2e6d5	3231	const TCHAR* path, /* Pointer to the file path */
willybayot	0:4db361f2e6d5	3232	FILINFO* fno /* Pointer to file information to return */
willybayot	0:4db361f2e6d5	3233	)
willybayot	0:4db361f2e6d5	3234	{
willybayot	0:4db361f2e6d5	3235	FRESULT res;
willybayot	0:4db361f2e6d5	3236	DIR dj;
willybayot	0:4db361f2e6d5	3237	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	3238
willybayot	0:4db361f2e6d5	3239
willybayot	0:4db361f2e6d5	3240	/* Get logical drive number */
willybayot	0:4db361f2e6d5	3241	res = find_volume(&dj.fs, &path, 0);
willybayot	0:4db361f2e6d5	3242	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3243	INIT_BUF(dj);
willybayot	0:4db361f2e6d5	3244	res = follow_path(&dj, path); /* Follow the file path */
willybayot	0:4db361f2e6d5	3245	if (res == FR_OK) { /* Follow completed */
willybayot	0:4db361f2e6d5	3246	if (dj.dir) { /* Found an object */
willybayot	0:4db361f2e6d5	3247	if (fno) get_fileinfo(&dj, fno);
willybayot	0:4db361f2e6d5	3248	} else { /* It is root directory */
willybayot	0:4db361f2e6d5	3249	res = FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	3250	}
willybayot	0:4db361f2e6d5	3251	}
willybayot	0:4db361f2e6d5	3252	FREE_BUF();
willybayot	0:4db361f2e6d5	3253	}
willybayot	0:4db361f2e6d5	3254
willybayot	0:4db361f2e6d5	3255	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	3256	}
willybayot	0:4db361f2e6d5	3257
willybayot	0:4db361f2e6d5	3258
willybayot	0:4db361f2e6d5	3259
willybayot	0:4db361f2e6d5	3260	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	3261	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3262	/* Get Number of Free Clusters */
willybayot	0:4db361f2e6d5	3263	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3264
willybayot	0:4db361f2e6d5	3265	FRESULT f_getfree (
willybayot	0:4db361f2e6d5	3266	const TCHAR* path, /* Path name of the logical drive number */
willybayot	0:4db361f2e6d5	3267	DWORD* nclst, /* Pointer to a variable to return number of free clusters */
willybayot	0:4db361f2e6d5	3268	FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
willybayot	0:4db361f2e6d5	3269	)
willybayot	0:4db361f2e6d5	3270	{
willybayot	0:4db361f2e6d5	3271	FRESULT res;
willybayot	0:4db361f2e6d5	3272	FATFS *fs;
willybayot	0:4db361f2e6d5	3273	DWORD n, clst, sect, stat;
willybayot	0:4db361f2e6d5	3274	UINT i;
willybayot	0:4db361f2e6d5	3275	BYTE fat, *p;
willybayot	0:4db361f2e6d5	3276
willybayot	0:4db361f2e6d5	3277
willybayot	0:4db361f2e6d5	3278	/* Get logical drive number */
willybayot	0:4db361f2e6d5	3279	res = find_volume(fatfs, &path, 0);
willybayot	0:4db361f2e6d5	3280	fs = *fatfs;
willybayot	0:4db361f2e6d5	3281	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3282	/* If free_clust is valid, return it without full cluster scan */
willybayot	0:4db361f2e6d5	3283	if (fs->free_clust <= fs->n_fatent - 2) {
willybayot	0:4db361f2e6d5	3284	*nclst = fs->free_clust;
willybayot	0:4db361f2e6d5	3285	} else {
willybayot	0:4db361f2e6d5	3286	/* Get number of free clusters */
willybayot	0:4db361f2e6d5	3287	fat = fs->fs_type;
willybayot	0:4db361f2e6d5	3288	n = 0;
willybayot	0:4db361f2e6d5	3289	if (fat == FS_FAT12) {
willybayot	0:4db361f2e6d5	3290	clst = 2;
willybayot	0:4db361f2e6d5	3291	do {
willybayot	0:4db361f2e6d5	3292	stat = get_fat(fs, clst);
willybayot	0:4db361f2e6d5	3293	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
willybayot	0:4db361f2e6d5	3294	if (stat == 1) { res = FR_INT_ERR; break; }
willybayot	0:4db361f2e6d5	3295	if (stat == 0) n++;
willybayot	0:4db361f2e6d5	3296	} while (++clst < fs->n_fatent);
willybayot	0:4db361f2e6d5	3297	} else {
willybayot	0:4db361f2e6d5	3298	clst = fs->n_fatent;
willybayot	0:4db361f2e6d5	3299	sect = fs->fatbase;
willybayot	0:4db361f2e6d5	3300	i = 0; p = 0;
willybayot	0:4db361f2e6d5	3301	do {
willybayot	0:4db361f2e6d5	3302	if (!i) {
willybayot	0:4db361f2e6d5	3303	res = move_window(fs, sect++);
willybayot	0:4db361f2e6d5	3304	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	3305	p = fs->win.d8;
willybayot	0:4db361f2e6d5	3306	i = SS(fs);
willybayot	0:4db361f2e6d5	3307	}
willybayot	0:4db361f2e6d5	3308	if (fat == FS_FAT16) {
willybayot	0:4db361f2e6d5	3309	if (LD_WORD(p) == 0) n++;
willybayot	0:4db361f2e6d5	3310	p += 2; i -= 2;
willybayot	0:4db361f2e6d5	3311	} else {
willybayot	0:4db361f2e6d5	3312	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
willybayot	0:4db361f2e6d5	3313	p += 4; i -= 4;
willybayot	0:4db361f2e6d5	3314	}
willybayot	0:4db361f2e6d5	3315	} while (--clst);
willybayot	0:4db361f2e6d5	3316	}
willybayot	0:4db361f2e6d5	3317	fs->free_clust = n;
willybayot	0:4db361f2e6d5	3318	fs->fsi_flag \|= 1;
willybayot	0:4db361f2e6d5	3319	*nclst = n;
willybayot	0:4db361f2e6d5	3320	}
willybayot	0:4db361f2e6d5	3321	}
willybayot	0:4db361f2e6d5	3322	LEAVE_FF(fs, res);
willybayot	0:4db361f2e6d5	3323	}
willybayot	0:4db361f2e6d5	3324
willybayot	0:4db361f2e6d5	3325
willybayot	0:4db361f2e6d5	3326
willybayot	0:4db361f2e6d5	3327
willybayot	0:4db361f2e6d5	3328	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3329	/* Truncate File */
willybayot	0:4db361f2e6d5	3330	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3331
willybayot	0:4db361f2e6d5	3332	FRESULT f_truncate (
willybayot	0:4db361f2e6d5	3333	FIL* fp /* Pointer to the file object */
willybayot	0:4db361f2e6d5	3334	)
willybayot	0:4db361f2e6d5	3335	{
willybayot	0:4db361f2e6d5	3336	FRESULT res;
willybayot	0:4db361f2e6d5	3337	DWORD ncl;
willybayot	0:4db361f2e6d5	3338
willybayot	0:4db361f2e6d5	3339
willybayot	0:4db361f2e6d5	3340	res = validate(fp); /* Check validity of the object */
willybayot	0:4db361f2e6d5	3341	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3342	if (fp->err) { /* Check error */
willybayot	0:4db361f2e6d5	3343	res = (FRESULT)fp->err;
willybayot	0:4db361f2e6d5	3344	} else {
willybayot	0:4db361f2e6d5	3345	if (!(fp->flag & FA_WRITE)) /* Check access mode */
willybayot	0:4db361f2e6d5	3346	res = FR_DENIED;
willybayot	0:4db361f2e6d5	3347	}
willybayot	0:4db361f2e6d5	3348	}
willybayot	0:4db361f2e6d5	3349	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3350	if (fp->fsize > fp->fptr) {
willybayot	0:4db361f2e6d5	3351	fp->fsize = fp->fptr; /* Set file size to current R/W point */
willybayot	0:4db361f2e6d5	3352	fp->flag \|= FA__WRITTEN;
willybayot	0:4db361f2e6d5	3353	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
willybayot	0:4db361f2e6d5	3354	res = remove_chain(fp->fs, fp->sclust);
willybayot	0:4db361f2e6d5	3355	fp->sclust = 0;
willybayot	0:4db361f2e6d5	3356	} else { /* When truncate a part of the file, remove remaining clusters */
willybayot	0:4db361f2e6d5	3357	ncl = get_fat(fp->fs, fp->clust);
willybayot	0:4db361f2e6d5	3358	res = FR_OK;
willybayot	0:4db361f2e6d5	3359	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
willybayot	0:4db361f2e6d5	3360	if (ncl == 1) res = FR_INT_ERR;
willybayot	0:4db361f2e6d5	3361	if (res == FR_OK && ncl < fp->fs->n_fatent) {
willybayot	0:4db361f2e6d5	3362	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
willybayot	0:4db361f2e6d5	3363	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
willybayot	0:4db361f2e6d5	3364	}
willybayot	0:4db361f2e6d5	3365	}
willybayot	0:4db361f2e6d5	3366	#if !_FS_TINY
willybayot	0:4db361f2e6d5	3367	if (res == FR_OK && (fp->flag & FA__DIRTY)) {
willybayot	0:4db361f2e6d5	3368	if (disk_write(fp->fs->drv, fp->buf.d8, fp->dsect, 1))
willybayot	0:4db361f2e6d5	3369	res = FR_DISK_ERR;
willybayot	0:4db361f2e6d5	3370	else
willybayot	0:4db361f2e6d5	3371	fp->flag &= ~FA__DIRTY;
willybayot	0:4db361f2e6d5	3372	}
willybayot	0:4db361f2e6d5	3373	#endif
willybayot	0:4db361f2e6d5	3374	}
willybayot	0:4db361f2e6d5	3375	if (res != FR_OK) fp->err = (FRESULT)res;
willybayot	0:4db361f2e6d5	3376	}
willybayot	0:4db361f2e6d5	3377
willybayot	0:4db361f2e6d5	3378	LEAVE_FF(fp->fs, res);
willybayot	0:4db361f2e6d5	3379	}
willybayot	0:4db361f2e6d5	3380
willybayot	0:4db361f2e6d5	3381
willybayot	0:4db361f2e6d5	3382
willybayot	0:4db361f2e6d5	3383
willybayot	0:4db361f2e6d5	3384	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3385	/* Delete a File or Directory */
willybayot	0:4db361f2e6d5	3386	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3387
willybayot	0:4db361f2e6d5	3388	FRESULT f_unlink (
willybayot	0:4db361f2e6d5	3389	const TCHAR* path /* Pointer to the file or directory path */
willybayot	0:4db361f2e6d5	3390	)
willybayot	0:4db361f2e6d5	3391	{
willybayot	0:4db361f2e6d5	3392	FRESULT res;
willybayot	0:4db361f2e6d5	3393	DIR dj, sdj;
willybayot	0:4db361f2e6d5	3394	BYTE *dir;
willybayot	0:4db361f2e6d5	3395	DWORD dclst;
willybayot	0:4db361f2e6d5	3396	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	3397
willybayot	0:4db361f2e6d5	3398
willybayot	0:4db361f2e6d5	3399	/* Get logical drive number */
willybayot	0:4db361f2e6d5	3400	res = find_volume(&dj.fs, &path, 1);
willybayot	0:4db361f2e6d5	3401	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3402	INIT_BUF(dj);
willybayot	0:4db361f2e6d5	3403	res = follow_path(&dj, path); /* Follow the file path */
willybayot	0:4db361f2e6d5	3404	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
willybayot	0:4db361f2e6d5	3405	res = FR_INVALID_NAME; /* Cannot remove dot entry */
willybayot	0:4db361f2e6d5	3406	#if _FS_LOCK
willybayot	0:4db361f2e6d5	3407	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open file */
willybayot	0:4db361f2e6d5	3408	#endif
willybayot	0:4db361f2e6d5	3409	if (res == FR_OK) { /* The object is accessible */
willybayot	0:4db361f2e6d5	3410	dir = dj.dir;
willybayot	0:4db361f2e6d5	3411	if (!dir) {
willybayot	0:4db361f2e6d5	3412	res = FR_INVALID_NAME; /* Cannot remove the start directory */
willybayot	0:4db361f2e6d5	3413	} else {
willybayot	0:4db361f2e6d5	3414	if (dir[DIR_Attr] & AM_RDO)
willybayot	0:4db361f2e6d5	3415	res = FR_DENIED; /* Cannot remove R/O object */
willybayot	0:4db361f2e6d5	3416	}
willybayot	0:4db361f2e6d5	3417	dclst = ld_clust(dj.fs, dir);
willybayot	0:4db361f2e6d5	3418	if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-dir? */
willybayot	0:4db361f2e6d5	3419	if (dclst < 2) {
willybayot	0:4db361f2e6d5	3420	res = FR_INT_ERR;
willybayot	0:4db361f2e6d5	3421	} else {
willybayot	0:4db361f2e6d5	3422	mem_cpy(&sdj, &dj, sizeof (DIR)); /* Check if the sub-directory is empty or not */
willybayot	0:4db361f2e6d5	3423	sdj.sclust = dclst;
willybayot	0:4db361f2e6d5	3424	res = dir_sdi(&sdj, 2); /* Exclude dot entries */
willybayot	0:4db361f2e6d5	3425	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3426	res = dir_read(&sdj, 0); /* Read an item */
willybayot	0:4db361f2e6d5	3427	if (res == FR_OK /* Not empty directory */
willybayot	0:4db361f2e6d5	3428	#if _FS_RPATH
willybayot	0:4db361f2e6d5	3429	\|\| dclst == dj.fs->cdir /* Current directory */
willybayot	0:4db361f2e6d5	3430	#endif
willybayot	0:4db361f2e6d5	3431	) res = FR_DENIED;
willybayot	0:4db361f2e6d5	3432	if (res == FR_NO_FILE) res = FR_OK; /* Empty */
willybayot	0:4db361f2e6d5	3433	}
willybayot	0:4db361f2e6d5	3434	}
willybayot	0:4db361f2e6d5	3435	}
willybayot	0:4db361f2e6d5	3436	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3437	res = dir_remove(&dj); /* Remove the directory entry */
willybayot	0:4db361f2e6d5	3438	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3439	if (dclst) /* Remove the cluster chain if exist */
willybayot	0:4db361f2e6d5	3440	res = remove_chain(dj.fs, dclst);
willybayot	0:4db361f2e6d5	3441	if (res == FR_OK) res = sync_fs(dj.fs);
willybayot	0:4db361f2e6d5	3442	}
willybayot	0:4db361f2e6d5	3443	}
willybayot	0:4db361f2e6d5	3444	}
willybayot	0:4db361f2e6d5	3445	FREE_BUF();
willybayot	0:4db361f2e6d5	3446	}
willybayot	0:4db361f2e6d5	3447
willybayot	0:4db361f2e6d5	3448	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	3449	}
willybayot	0:4db361f2e6d5	3450
willybayot	0:4db361f2e6d5	3451
willybayot	0:4db361f2e6d5	3452
willybayot	0:4db361f2e6d5	3453
willybayot	0:4db361f2e6d5	3454	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3455	/* Create a Directory */
willybayot	0:4db361f2e6d5	3456	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3457
willybayot	0:4db361f2e6d5	3458	FRESULT f_mkdir (
willybayot	0:4db361f2e6d5	3459	const TCHAR* path /* Pointer to the directory path */
willybayot	0:4db361f2e6d5	3460	)
willybayot	0:4db361f2e6d5	3461	{
willybayot	0:4db361f2e6d5	3462	FRESULT res;
willybayot	0:4db361f2e6d5	3463	DIR dj;
willybayot	0:4db361f2e6d5	3464	BYTE *dir, n;
willybayot	0:4db361f2e6d5	3465	DWORD dsc, dcl, pcl, tm = get_fattime();
willybayot	0:4db361f2e6d5	3466	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	3467
willybayot	0:4db361f2e6d5	3468
willybayot	0:4db361f2e6d5	3469	/* Get logical drive number */
willybayot	0:4db361f2e6d5	3470	res = find_volume(&dj.fs, &path, 1);
willybayot	0:4db361f2e6d5	3471	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3472	INIT_BUF(dj);
willybayot	0:4db361f2e6d5	3473	res = follow_path(&dj, path); /* Follow the file path */
willybayot	0:4db361f2e6d5	3474	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
willybayot	0:4db361f2e6d5	3475	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
willybayot	0:4db361f2e6d5	3476	res = FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	3477	if (res == FR_NO_FILE) { /* Can create a new directory */
willybayot	0:4db361f2e6d5	3478	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
willybayot	0:4db361f2e6d5	3479	res = FR_OK;
willybayot	0:4db361f2e6d5	3480	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
willybayot	0:4db361f2e6d5	3481	if (dcl == 1) res = FR_INT_ERR;
willybayot	0:4db361f2e6d5	3482	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
willybayot	0:4db361f2e6d5	3483	if (res == FR_OK) /* Flush FAT */
willybayot	0:4db361f2e6d5	3484	res = sync_window(dj.fs);
willybayot	0:4db361f2e6d5	3485	if (res == FR_OK) { /* Initialize the new directory table */
willybayot	0:4db361f2e6d5	3486	dsc = clust2sect(dj.fs, dcl);
willybayot	0:4db361f2e6d5	3487	dir = dj.fs->win.d8;
willybayot	0:4db361f2e6d5	3488	mem_set(dir, 0, SS(dj.fs));
willybayot	0:4db361f2e6d5	3489	mem_set(dir+DIR_Name, ' ', 11); /* Create "." entry */
willybayot	0:4db361f2e6d5	3490	dir[DIR_Name] = '.';
willybayot	0:4db361f2e6d5	3491	dir[DIR_Attr] = AM_DIR;
willybayot	0:4db361f2e6d5	3492	ST_DWORD(dir+DIR_WrtTime, tm);
willybayot	0:4db361f2e6d5	3493	st_clust(dir, dcl);
willybayot	0:4db361f2e6d5	3494	mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
willybayot	0:4db361f2e6d5	3495	dir[SZ_DIR+1] = '.'; pcl = dj.sclust;
willybayot	0:4db361f2e6d5	3496	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
willybayot	0:4db361f2e6d5	3497	pcl = 0;
willybayot	0:4db361f2e6d5	3498	st_clust(dir+SZ_DIR, pcl);
willybayot	0:4db361f2e6d5	3499	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
willybayot	0:4db361f2e6d5	3500	dj.fs->winsect = dsc++;
willybayot	0:4db361f2e6d5	3501	dj.fs->wflag = 1;
willybayot	0:4db361f2e6d5	3502	res = sync_window(dj.fs);
willybayot	0:4db361f2e6d5	3503	if (res != FR_OK) break;
willybayot	0:4db361f2e6d5	3504	mem_set(dir, 0, SS(dj.fs));
willybayot	0:4db361f2e6d5	3505	}
willybayot	0:4db361f2e6d5	3506	}
willybayot	0:4db361f2e6d5	3507	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
willybayot	0:4db361f2e6d5	3508	if (res != FR_OK) {
willybayot	0:4db361f2e6d5	3509	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
willybayot	0:4db361f2e6d5	3510	} else {
willybayot	0:4db361f2e6d5	3511	dir = dj.dir;
willybayot	0:4db361f2e6d5	3512	dir[DIR_Attr] = AM_DIR; /* Attribute */
willybayot	0:4db361f2e6d5	3513	ST_DWORD(dir+DIR_WrtTime, tm); /* Created time */
willybayot	0:4db361f2e6d5	3514	st_clust(dir, dcl); /* Table start cluster */
willybayot	0:4db361f2e6d5	3515	dj.fs->wflag = 1;
willybayot	0:4db361f2e6d5	3516	res = sync_fs(dj.fs);
willybayot	0:4db361f2e6d5	3517	}
willybayot	0:4db361f2e6d5	3518	}
willybayot	0:4db361f2e6d5	3519	FREE_BUF();
willybayot	0:4db361f2e6d5	3520	}
willybayot	0:4db361f2e6d5	3521
willybayot	0:4db361f2e6d5	3522	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	3523	}
willybayot	0:4db361f2e6d5	3524
willybayot	0:4db361f2e6d5	3525
willybayot	0:4db361f2e6d5	3526
willybayot	0:4db361f2e6d5	3527
willybayot	0:4db361f2e6d5	3528	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3529	/* Change Attribute */
willybayot	0:4db361f2e6d5	3530	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3531
willybayot	0:4db361f2e6d5	3532	FRESULT f_chmod (
willybayot	0:4db361f2e6d5	3533	const TCHAR* path, /* Pointer to the file path */
willybayot	0:4db361f2e6d5	3534	BYTE value, /* Attribute bits */
willybayot	0:4db361f2e6d5	3535	BYTE mask /* Attribute mask to change */
willybayot	0:4db361f2e6d5	3536	)
willybayot	0:4db361f2e6d5	3537	{
willybayot	0:4db361f2e6d5	3538	FRESULT res;
willybayot	0:4db361f2e6d5	3539	DIR dj;
willybayot	0:4db361f2e6d5	3540	BYTE *dir;
willybayot	0:4db361f2e6d5	3541	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	3542
willybayot	0:4db361f2e6d5	3543
willybayot	0:4db361f2e6d5	3544	/* Get logical drive number */
willybayot	0:4db361f2e6d5	3545	res = find_volume(&dj.fs, &path, 1);
willybayot	0:4db361f2e6d5	3546	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3547	INIT_BUF(dj);
willybayot	0:4db361f2e6d5	3548	res = follow_path(&dj, path); /* Follow the file path */
willybayot	0:4db361f2e6d5	3549	FREE_BUF();
willybayot	0:4db361f2e6d5	3550	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
willybayot	0:4db361f2e6d5	3551	res = FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	3552	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3553	dir = dj.dir;
willybayot	0:4db361f2e6d5	3554	if (!dir) { /* Is it a root directory? */
willybayot	0:4db361f2e6d5	3555	res = FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	3556	} else { /* File or sub directory */
willybayot	0:4db361f2e6d5	3557	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
willybayot	0:4db361f2e6d5	3558	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
willybayot	0:4db361f2e6d5	3559	dj.fs->wflag = 1;
willybayot	0:4db361f2e6d5	3560	res = sync_fs(dj.fs);
willybayot	0:4db361f2e6d5	3561	}
willybayot	0:4db361f2e6d5	3562	}
willybayot	0:4db361f2e6d5	3563	}
willybayot	0:4db361f2e6d5	3564
willybayot	0:4db361f2e6d5	3565	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	3566	}
willybayot	0:4db361f2e6d5	3567
willybayot	0:4db361f2e6d5	3568
willybayot	0:4db361f2e6d5	3569
willybayot	0:4db361f2e6d5	3570
willybayot	0:4db361f2e6d5	3571	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3572	/* Change Timestamp */
willybayot	0:4db361f2e6d5	3573	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3574
willybayot	0:4db361f2e6d5	3575	FRESULT f_utime (
willybayot	0:4db361f2e6d5	3576	const TCHAR* path, /* Pointer to the file/directory name */
willybayot	0:4db361f2e6d5	3577	const FILINFO* fno /* Pointer to the time stamp to be set */
willybayot	0:4db361f2e6d5	3578	)
willybayot	0:4db361f2e6d5	3579	{
willybayot	0:4db361f2e6d5	3580	FRESULT res;
willybayot	0:4db361f2e6d5	3581	DIR dj;
willybayot	0:4db361f2e6d5	3582	BYTE *dir;
willybayot	0:4db361f2e6d5	3583	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	3584
willybayot	0:4db361f2e6d5	3585
willybayot	0:4db361f2e6d5	3586	/* Get logical drive number */
willybayot	0:4db361f2e6d5	3587	res = find_volume(&dj.fs, &path, 1);
willybayot	0:4db361f2e6d5	3588	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3589	INIT_BUF(dj);
willybayot	0:4db361f2e6d5	3590	res = follow_path(&dj, path); /* Follow the file path */
willybayot	0:4db361f2e6d5	3591	FREE_BUF();
willybayot	0:4db361f2e6d5	3592	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
willybayot	0:4db361f2e6d5	3593	res = FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	3594	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3595	dir = dj.dir;
willybayot	0:4db361f2e6d5	3596	if (!dir) { /* Root directory */
willybayot	0:4db361f2e6d5	3597	res = FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	3598	} else { /* File or sub-directory */
willybayot	0:4db361f2e6d5	3599	ST_WORD(dir+DIR_WrtTime, fno->ftime);
willybayot	0:4db361f2e6d5	3600	ST_WORD(dir+DIR_WrtDate, fno->fdate);
willybayot	0:4db361f2e6d5	3601	dj.fs->wflag = 1;
willybayot	0:4db361f2e6d5	3602	res = sync_fs(dj.fs);
willybayot	0:4db361f2e6d5	3603	}
willybayot	0:4db361f2e6d5	3604	}
willybayot	0:4db361f2e6d5	3605	}
willybayot	0:4db361f2e6d5	3606
willybayot	0:4db361f2e6d5	3607	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	3608	}
willybayot	0:4db361f2e6d5	3609
willybayot	0:4db361f2e6d5	3610
willybayot	0:4db361f2e6d5	3611
willybayot	0:4db361f2e6d5	3612
willybayot	0:4db361f2e6d5	3613	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3614	/* Rename File/Directory */
willybayot	0:4db361f2e6d5	3615	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3616
willybayot	0:4db361f2e6d5	3617	FRESULT f_rename (
willybayot	0:4db361f2e6d5	3618	const TCHAR* path_old, /* Pointer to the old name */
willybayot	0:4db361f2e6d5	3619	const TCHAR* path_new /* Pointer to the new name */
willybayot	0:4db361f2e6d5	3620	)
willybayot	0:4db361f2e6d5	3621	{
willybayot	0:4db361f2e6d5	3622	FRESULT res;
willybayot	0:4db361f2e6d5	3623	DIR djo, djn;
willybayot	0:4db361f2e6d5	3624	BYTE buf[21], *dir;
willybayot	0:4db361f2e6d5	3625	DWORD dw;
willybayot	0:4db361f2e6d5	3626	DEF_NAMEBUF;
willybayot	0:4db361f2e6d5	3627
willybayot	0:4db361f2e6d5	3628
willybayot	0:4db361f2e6d5	3629	/* Get logical drive number of the source object */
willybayot	0:4db361f2e6d5	3630	res = find_volume(&djo.fs, &path_old, 1);
willybayot	0:4db361f2e6d5	3631	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3632	djn.fs = djo.fs;
willybayot	0:4db361f2e6d5	3633	INIT_BUF(djo);
willybayot	0:4db361f2e6d5	3634	res = follow_path(&djo, path_old); /* Check old object */
willybayot	0:4db361f2e6d5	3635	if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
willybayot	0:4db361f2e6d5	3636	res = FR_INVALID_NAME;
willybayot	0:4db361f2e6d5	3637	#if _FS_LOCK
willybayot	0:4db361f2e6d5	3638	if (res == FR_OK) res = chk_lock(&djo, 2);
willybayot	0:4db361f2e6d5	3639	#endif
willybayot	0:4db361f2e6d5	3640	if (res == FR_OK) { /* Old object is found */
willybayot	0:4db361f2e6d5	3641	if (!djo.dir) { /* Is root dir? */
willybayot	0:4db361f2e6d5	3642	res = FR_NO_FILE;
willybayot	0:4db361f2e6d5	3643	} else {
willybayot	0:4db361f2e6d5	3644	mem_cpy(buf, djo.dir+DIR_Attr, 21); /* Save the object information except for name */
willybayot	0:4db361f2e6d5	3645	mem_cpy(&djn, &djo, sizeof (DIR)); /* Check new object */
willybayot	0:4db361f2e6d5	3646	res = follow_path(&djn, path_new);
willybayot	0:4db361f2e6d5	3647	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
willybayot	0:4db361f2e6d5	3648	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
willybayot	0:4db361f2e6d5	3649	/* Start critical section that any interruption can cause a cross-link */
willybayot	0:4db361f2e6d5	3650	res = dir_register(&djn); /* Register the new entry */
willybayot	0:4db361f2e6d5	3651	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3652	dir = djn.dir; /* Copy object information except for name */
willybayot	0:4db361f2e6d5	3653	mem_cpy(dir+13, buf+2, 19);
willybayot	0:4db361f2e6d5	3654	dir[DIR_Attr] = buf[0] \| AM_ARC;
willybayot	0:4db361f2e6d5	3655	djo.fs->wflag = 1;
willybayot	0:4db361f2e6d5	3656	if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) { /* Update .. entry in the directory if needed */
willybayot	0:4db361f2e6d5	3657	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
willybayot	0:4db361f2e6d5	3658	if (!dw) {
willybayot	0:4db361f2e6d5	3659	res = FR_INT_ERR;
willybayot	0:4db361f2e6d5	3660	} else {
willybayot	0:4db361f2e6d5	3661	res = move_window(djo.fs, dw);
willybayot	0:4db361f2e6d5	3662	dir = djo.fs->win.d8+SZ_DIR; /* .. entry */
willybayot	0:4db361f2e6d5	3663	if (res == FR_OK && dir[1] == '.') {
willybayot	0:4db361f2e6d5	3664	dw = (djo.fs->fs_type == FS_FAT32 && djn.sclust == djo.fs->dirbase) ? 0 : djn.sclust;
willybayot	0:4db361f2e6d5	3665	st_clust(dir, dw);
willybayot	0:4db361f2e6d5	3666	djo.fs->wflag = 1;
willybayot	0:4db361f2e6d5	3667	}
willybayot	0:4db361f2e6d5	3668	}
willybayot	0:4db361f2e6d5	3669	}
willybayot	0:4db361f2e6d5	3670	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3671	res = dir_remove(&djo); /* Remove old entry */
willybayot	0:4db361f2e6d5	3672	if (res == FR_OK)
willybayot	0:4db361f2e6d5	3673	res = sync_fs(djo.fs);
willybayot	0:4db361f2e6d5	3674	}
willybayot	0:4db361f2e6d5	3675	}
willybayot	0:4db361f2e6d5	3676	/* End critical section */
willybayot	0:4db361f2e6d5	3677	}
willybayot	0:4db361f2e6d5	3678	}
willybayot	0:4db361f2e6d5	3679	}
willybayot	0:4db361f2e6d5	3680	FREE_BUF();
willybayot	0:4db361f2e6d5	3681	}
willybayot	0:4db361f2e6d5	3682
willybayot	0:4db361f2e6d5	3683	LEAVE_FF(djo.fs, res);
willybayot	0:4db361f2e6d5	3684	}
willybayot	0:4db361f2e6d5	3685
willybayot	0:4db361f2e6d5	3686	#endif /* !_FS_READONLY */
willybayot	0:4db361f2e6d5	3687	#endif /* _FS_MINIMIZE == 0 */
willybayot	0:4db361f2e6d5	3688	#endif /* _FS_MINIMIZE <= 1 */
willybayot	0:4db361f2e6d5	3689	#endif /* _FS_MINIMIZE <= 2 */
willybayot	0:4db361f2e6d5	3690
willybayot	0:4db361f2e6d5	3691
willybayot	0:4db361f2e6d5	3692
willybayot	0:4db361f2e6d5	3693	#if _USE_LABEL
willybayot	0:4db361f2e6d5	3694	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3695	/* Get volume label */
willybayot	0:4db361f2e6d5	3696	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3697
willybayot	0:4db361f2e6d5	3698	FRESULT f_getlabel (
willybayot	0:4db361f2e6d5	3699	const TCHAR* path, /* Path name of the logical drive number */
willybayot	0:4db361f2e6d5	3700	TCHAR* label, /* Pointer to a buffer to return the volume label */
willybayot	0:4db361f2e6d5	3701	DWORD* sn /* Pointer to a variable to return the volume serial number */
willybayot	0:4db361f2e6d5	3702	)
willybayot	0:4db361f2e6d5	3703	{
willybayot	0:4db361f2e6d5	3704	FRESULT res;
willybayot	0:4db361f2e6d5	3705	DIR dj;
willybayot	0:4db361f2e6d5	3706	UINT i, j;
willybayot	0:4db361f2e6d5	3707
willybayot	0:4db361f2e6d5	3708
willybayot	0:4db361f2e6d5	3709	/* Get logical drive number */
willybayot	0:4db361f2e6d5	3710	res = find_volume(&dj.fs, &path, 0);
willybayot	0:4db361f2e6d5	3711
willybayot	0:4db361f2e6d5	3712	/* Get volume label */
willybayot	0:4db361f2e6d5	3713	if (res == FR_OK && label) {
willybayot	0:4db361f2e6d5	3714	dj.sclust = 0; /* Open root directory */
willybayot	0:4db361f2e6d5	3715	res = dir_sdi(&dj, 0);
willybayot	0:4db361f2e6d5	3716	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3717	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
willybayot	0:4db361f2e6d5	3718	if (res == FR_OK) { /* A volume label is exist */
willybayot	0:4db361f2e6d5	3719	#if _LFN_UNICODE
willybayot	0:4db361f2e6d5	3720	WCHAR w;
willybayot	0:4db361f2e6d5	3721	i = j = 0;
willybayot	0:4db361f2e6d5	3722	do {
willybayot	0:4db361f2e6d5	3723	w = (i < 11) ? dj.dir[i++] : ' ';
willybayot	0:4db361f2e6d5	3724	if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
willybayot	0:4db361f2e6d5	3725	w = w << 8 \| dj.dir[i++];
willybayot	0:4db361f2e6d5	3726	label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
willybayot	0:4db361f2e6d5	3727	} while (j < 11);
willybayot	0:4db361f2e6d5	3728	#else
willybayot	0:4db361f2e6d5	3729	mem_cpy(label, dj.dir, 11);
willybayot	0:4db361f2e6d5	3730	#endif
willybayot	0:4db361f2e6d5	3731	j = 11;
willybayot	0:4db361f2e6d5	3732	do {
willybayot	0:4db361f2e6d5	3733	label[j] = 0;
willybayot	0:4db361f2e6d5	3734	if (!j) break;
willybayot	0:4db361f2e6d5	3735	} while (label[--j] == ' ');
willybayot	0:4db361f2e6d5	3736	}
willybayot	0:4db361f2e6d5	3737	if (res == FR_NO_FILE) { /* No label, return nul string */
willybayot	0:4db361f2e6d5	3738	label[0] = 0;
willybayot	0:4db361f2e6d5	3739	res = FR_OK;
willybayot	0:4db361f2e6d5	3740	}
willybayot	0:4db361f2e6d5	3741	}
willybayot	0:4db361f2e6d5	3742	}
willybayot	0:4db361f2e6d5	3743
willybayot	0:4db361f2e6d5	3744	/* Get volume serial number */
willybayot	0:4db361f2e6d5	3745	if (res == FR_OK && sn) {
willybayot	0:4db361f2e6d5	3746	res = move_window(dj.fs, dj.fs->volbase);
willybayot	0:4db361f2e6d5	3747	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3748	i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
willybayot	0:4db361f2e6d5	3749	*sn = LD_DWORD(&dj.fs->win.d8[i]);
willybayot	0:4db361f2e6d5	3750	}
willybayot	0:4db361f2e6d5	3751	}
willybayot	0:4db361f2e6d5	3752
willybayot	0:4db361f2e6d5	3753	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	3754	}
willybayot	0:4db361f2e6d5	3755
willybayot	0:4db361f2e6d5	3756
willybayot	0:4db361f2e6d5	3757
willybayot	0:4db361f2e6d5	3758	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	3759	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3760	/* Set volume label */
willybayot	0:4db361f2e6d5	3761	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3762
willybayot	0:4db361f2e6d5	3763	FRESULT f_setlabel (
willybayot	0:4db361f2e6d5	3764	const TCHAR* label /* Pointer to the volume label to set */
willybayot	0:4db361f2e6d5	3765	)
willybayot	0:4db361f2e6d5	3766	{
willybayot	0:4db361f2e6d5	3767	FRESULT res;
willybayot	0:4db361f2e6d5	3768	DIR dj;
willybayot	0:4db361f2e6d5	3769	BYTE vn[11];
willybayot	0:4db361f2e6d5	3770	UINT i, j, sl;
willybayot	0:4db361f2e6d5	3771	WCHAR w;
willybayot	0:4db361f2e6d5	3772	DWORD tm;
willybayot	0:4db361f2e6d5	3773
willybayot	0:4db361f2e6d5	3774
willybayot	0:4db361f2e6d5	3775	/* Get logical drive number */
willybayot	0:4db361f2e6d5	3776	res = find_volume(&dj.fs, &label, 1);
willybayot	0:4db361f2e6d5	3777	if (res) LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	3778
willybayot	0:4db361f2e6d5	3779	/* Create a volume label in directory form */
willybayot	0:4db361f2e6d5	3780	vn[0] = 0;
willybayot	0:4db361f2e6d5	3781	for (sl = 0; label[sl]; sl++) ; /* Get name length */
willybayot	0:4db361f2e6d5	3782	for ( ; sl && label[sl-1] == ' '; sl--) ; /* Remove trailing spaces */
willybayot	0:4db361f2e6d5	3783	if (sl) { /* Create volume label in directory form */
willybayot	0:4db361f2e6d5	3784	i = j = 0;
willybayot	0:4db361f2e6d5	3785	do {
willybayot	0:4db361f2e6d5	3786	#if _LFN_UNICODE
willybayot	0:4db361f2e6d5	3787	w = ff_convert(ff_wtoupper(label[i++]), 0);
willybayot	0:4db361f2e6d5	3788	#else
willybayot	0:4db361f2e6d5	3789	w = (BYTE)label[i++];
willybayot	0:4db361f2e6d5	3790	if (IsDBCS1(w))
willybayot	0:4db361f2e6d5	3791	w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 \| (BYTE)label[i++] : 0;
willybayot	0:4db361f2e6d5	3792	#if _USE_LFN
willybayot	0:4db361f2e6d5	3793	w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
willybayot	0:4db361f2e6d5	3794	#else
willybayot	0:4db361f2e6d5	3795	if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
willybayot	0:4db361f2e6d5	3796	#ifdef _EXCVT
willybayot	0:4db361f2e6d5	3797	if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
willybayot	0:4db361f2e6d5	3798	#else
willybayot	0:4db361f2e6d5	3799	if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
willybayot	0:4db361f2e6d5	3800	#endif
willybayot	0:4db361f2e6d5	3801	#endif
willybayot	0:4db361f2e6d5	3802	#endif
willybayot	0:4db361f2e6d5	3803	if (!w \|\| chk_chr("\"+,.:;<=>\?[]\|\x7F", w) \|\| j >= (UINT)((w >= 0x100) ? 10 : 11)) / Reject invalid characters for volume label */
willybayot	0:4db361f2e6d5	3804	LEAVE_FF(dj.fs, FR_INVALID_NAME);
willybayot	0:4db361f2e6d5	3805	if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
willybayot	0:4db361f2e6d5	3806	vn[j++] = (BYTE)w;
willybayot	0:4db361f2e6d5	3807	} while (i < sl);
willybayot	0:4db361f2e6d5	3808	while (j < 11) vn[j++] = ' ';
willybayot	0:4db361f2e6d5	3809	}
willybayot	0:4db361f2e6d5	3810
willybayot	0:4db361f2e6d5	3811	/* Set volume label */
willybayot	0:4db361f2e6d5	3812	dj.sclust = 0; /* Open root directory */
willybayot	0:4db361f2e6d5	3813	res = dir_sdi(&dj, 0);
willybayot	0:4db361f2e6d5	3814	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3815	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
willybayot	0:4db361f2e6d5	3816	if (res == FR_OK) { /* A volume label is found */
willybayot	0:4db361f2e6d5	3817	if (vn[0]) {
willybayot	0:4db361f2e6d5	3818	mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
willybayot	0:4db361f2e6d5	3819	tm = get_fattime();
willybayot	0:4db361f2e6d5	3820	ST_DWORD(dj.dir+DIR_WrtTime, tm);
willybayot	0:4db361f2e6d5	3821	} else {
willybayot	0:4db361f2e6d5	3822	dj.dir[0] = DDE; /* Remove the volume label */
willybayot	0:4db361f2e6d5	3823	}
willybayot	0:4db361f2e6d5	3824	dj.fs->wflag = 1;
willybayot	0:4db361f2e6d5	3825	res = sync_fs(dj.fs);
willybayot	0:4db361f2e6d5	3826	} else { /* No volume label is found or error */
willybayot	0:4db361f2e6d5	3827	if (res == FR_NO_FILE) {
willybayot	0:4db361f2e6d5	3828	res = FR_OK;
willybayot	0:4db361f2e6d5	3829	if (vn[0]) { /* Create volume label as new */
willybayot	0:4db361f2e6d5	3830	res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
willybayot	0:4db361f2e6d5	3831	if (res == FR_OK) {
willybayot	0:4db361f2e6d5	3832	mem_set(dj.dir, 0, SZ_DIR); /* Set volume label */
willybayot	0:4db361f2e6d5	3833	mem_cpy(dj.dir, vn, 11);
willybayot	0:4db361f2e6d5	3834	dj.dir[DIR_Attr] = AM_VOL;
willybayot	0:4db361f2e6d5	3835	tm = get_fattime();
willybayot	0:4db361f2e6d5	3836	ST_DWORD(dj.dir+DIR_WrtTime, tm);
willybayot	0:4db361f2e6d5	3837	dj.fs->wflag = 1;
willybayot	0:4db361f2e6d5	3838	res = sync_fs(dj.fs);
willybayot	0:4db361f2e6d5	3839	}
willybayot	0:4db361f2e6d5	3840	}
willybayot	0:4db361f2e6d5	3841	}
willybayot	0:4db361f2e6d5	3842	}
willybayot	0:4db361f2e6d5	3843	}
willybayot	0:4db361f2e6d5	3844
willybayot	0:4db361f2e6d5	3845	LEAVE_FF(dj.fs, res);
willybayot	0:4db361f2e6d5	3846	}
willybayot	0:4db361f2e6d5	3847
willybayot	0:4db361f2e6d5	3848	#endif /* !_FS_READONLY */
willybayot	0:4db361f2e6d5	3849	#endif /* _USE_LABEL */
willybayot	0:4db361f2e6d5	3850
willybayot	0:4db361f2e6d5	3851
willybayot	0:4db361f2e6d5	3852
willybayot	0:4db361f2e6d5	3853	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3854	/* Forward data to the stream directly (available on only tiny cfg) */
willybayot	0:4db361f2e6d5	3855	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3856	#if _USE_FORWARD && _FS_TINY
willybayot	0:4db361f2e6d5	3857
willybayot	0:4db361f2e6d5	3858	FRESULT f_forward (
willybayot	0:4db361f2e6d5	3859	FIL* fp, /* Pointer to the file object */
willybayot	0:4db361f2e6d5	3860	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
willybayot	0:4db361f2e6d5	3861	UINT btf, /* Number of bytes to forward */
willybayot	0:4db361f2e6d5	3862	UINT* bf /* Pointer to number of bytes forwarded */
willybayot	0:4db361f2e6d5	3863	)
willybayot	0:4db361f2e6d5	3864	{
willybayot	0:4db361f2e6d5	3865	FRESULT res;
willybayot	0:4db361f2e6d5	3866	DWORD remain, clst, sect;
willybayot	0:4db361f2e6d5	3867	UINT rcnt;
willybayot	0:4db361f2e6d5	3868	BYTE csect;
willybayot	0:4db361f2e6d5	3869
willybayot	0:4db361f2e6d5	3870
willybayot	0:4db361f2e6d5	3871	bf = 0; / Clear transfer byte counter */
willybayot	0:4db361f2e6d5	3872
willybayot	0:4db361f2e6d5	3873	res = validate(fp); /* Check validity of the object */
willybayot	0:4db361f2e6d5	3874	if (res != FR_OK) LEAVE_FF(fp->fs, res);
willybayot	0:4db361f2e6d5	3875	if (fp->err) /* Check error */
willybayot	0:4db361f2e6d5	3876	LEAVE_FF(fp->fs, (FRESULT)fp->err);
willybayot	0:4db361f2e6d5	3877	if (!(fp->flag & FA_READ)) /* Check access mode */
willybayot	0:4db361f2e6d5	3878	LEAVE_FF(fp->fs, FR_DENIED);
willybayot	0:4db361f2e6d5	3879
willybayot	0:4db361f2e6d5	3880	remain = fp->fsize - fp->fptr;
willybayot	0:4db361f2e6d5	3881	if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
willybayot	0:4db361f2e6d5	3882
willybayot	0:4db361f2e6d5	3883	for ( ; btf && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
willybayot	0:4db361f2e6d5	3884	fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
willybayot	0:4db361f2e6d5	3885	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
willybayot	0:4db361f2e6d5	3886	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
willybayot	0:4db361f2e6d5	3887	if (!csect) { /* On the cluster boundary? */
willybayot	0:4db361f2e6d5	3888	clst = (fp->fptr == 0) ? /* On the top of the file? */
willybayot	0:4db361f2e6d5	3889	fp->sclust : get_fat(fp->fs, fp->clust);
willybayot	0:4db361f2e6d5	3890	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	3891	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	3892	fp->clust = clst; /* Update current cluster */
willybayot	0:4db361f2e6d5	3893	}
willybayot	0:4db361f2e6d5	3894	}
willybayot	0:4db361f2e6d5	3895	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
willybayot	0:4db361f2e6d5	3896	if (!sect) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	3897	sect += csect;
willybayot	0:4db361f2e6d5	3898	if (move_window(fp->fs, sect)) /* Move sector window */
willybayot	0:4db361f2e6d5	3899	ABORT(fp->fs, FR_DISK_ERR);
willybayot	0:4db361f2e6d5	3900	fp->dsect = sect;
willybayot	0:4db361f2e6d5	3901	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
willybayot	0:4db361f2e6d5	3902	if (rcnt > btf) rcnt = btf;
willybayot	0:4db361f2e6d5	3903	rcnt = (*func)(&fp->fs->win.d8[(WORD)fp->fptr % SS(fp->fs)], rcnt);
willybayot	0:4db361f2e6d5	3904	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
willybayot	0:4db361f2e6d5	3905	}
willybayot	0:4db361f2e6d5	3906
willybayot	0:4db361f2e6d5	3907	LEAVE_FF(fp->fs, FR_OK);
willybayot	0:4db361f2e6d5	3908	}
willybayot	0:4db361f2e6d5	3909	#endif /* _USE_FORWARD */
willybayot	0:4db361f2e6d5	3910
willybayot	0:4db361f2e6d5	3911
willybayot	0:4db361f2e6d5	3912
willybayot	0:4db361f2e6d5	3913	#if _USE_MKFS && !_FS_READONLY
willybayot	0:4db361f2e6d5	3914	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3915	/* Create File System on the Drive */
willybayot	0:4db361f2e6d5	3916	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	3917	#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
willybayot	0:4db361f2e6d5	3918	#define N_FATS 1 /* Number of FAT copies (1 or 2) */
willybayot	0:4db361f2e6d5	3919
willybayot	0:4db361f2e6d5	3920
willybayot	0:4db361f2e6d5	3921	FRESULT f_mkfs (
willybayot	0:4db361f2e6d5	3922	const TCHAR* path, /* Logical drive number */
willybayot	0:4db361f2e6d5	3923	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
willybayot	0:4db361f2e6d5	3924	UINT au /* Allocation unit [bytes] */
willybayot	0:4db361f2e6d5	3925	)
willybayot	0:4db361f2e6d5	3926	{
willybayot	0:4db361f2e6d5	3927	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
willybayot	0:4db361f2e6d5	3928	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
willybayot	0:4db361f2e6d5	3929	int vol;
willybayot	0:4db361f2e6d5	3930	BYTE fmt, md, sys, *tbl, pdrv, part;
willybayot	0:4db361f2e6d5	3931	DWORD n_clst, vs, n, wsect;
willybayot	0:4db361f2e6d5	3932	UINT i;
willybayot	0:4db361f2e6d5	3933	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
willybayot	0:4db361f2e6d5	3934	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
willybayot	0:4db361f2e6d5	3935	FATFS *fs;
willybayot	0:4db361f2e6d5	3936	DSTATUS stat;
willybayot	0:4db361f2e6d5	3937
willybayot	0:4db361f2e6d5	3938
willybayot	0:4db361f2e6d5	3939	/* Check mounted drive and clear work area */
willybayot	0:4db361f2e6d5	3940	vol = get_ldnumber(&path);
willybayot	0:4db361f2e6d5	3941	if (vol < 0) return FR_INVALID_DRIVE;
willybayot	0:4db361f2e6d5	3942	if (sfd > 1) return FR_INVALID_PARAMETER;
willybayot	0:4db361f2e6d5	3943	if (au & (au - 1)) return FR_INVALID_PARAMETER;
willybayot	0:4db361f2e6d5	3944	fs = FatFs[vol];
willybayot	0:4db361f2e6d5	3945	if (!fs) return FR_NOT_ENABLED;
willybayot	0:4db361f2e6d5	3946	fs->fs_type = 0;
willybayot	0:4db361f2e6d5	3947	pdrv = LD2PD(vol); /* Physical drive */
willybayot	0:4db361f2e6d5	3948	part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
willybayot	0:4db361f2e6d5	3949
willybayot	0:4db361f2e6d5	3950	/* Get disk statics */
willybayot	0:4db361f2e6d5	3951	stat = disk_initialize(pdrv);
willybayot	0:4db361f2e6d5	3952	if (stat & STA_NOINIT) return FR_NOT_READY;
willybayot	0:4db361f2e6d5	3953	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
willybayot	0:4db361f2e6d5	3954	#if _MAX_SS != 512 /* Get disk sector size */
willybayot	0:4db361f2e6d5	3955	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
willybayot	0:4db361f2e6d5	3956	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	3957	#endif
willybayot	0:4db361f2e6d5	3958	if (_MULTI_PARTITION && part) {
willybayot	0:4db361f2e6d5	3959	/* Get partition information from partition table in the MBR */
willybayot	0:4db361f2e6d5	3960	if (disk_read(pdrv, fs->win.d8, 0, 1)) return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	3961	if (LD_WORD(fs->win.d8+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
willybayot	0:4db361f2e6d5	3962	tbl = &fs->win.d8[MBR_Table + (part - 1) * SZ_PTE];
willybayot	0:4db361f2e6d5	3963	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
willybayot	0:4db361f2e6d5	3964	b_vol = LD_DWORD(tbl+8); /* Volume start sector */
willybayot	0:4db361f2e6d5	3965	n_vol = LD_DWORD(tbl+12); /* Volume size */
willybayot	0:4db361f2e6d5	3966	} else {
willybayot	0:4db361f2e6d5	3967	/* Create a partition in this function */
willybayot	0:4db361f2e6d5	3968	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
willybayot	0:4db361f2e6d5	3969	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	3970	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
willybayot	0:4db361f2e6d5	3971	n_vol -= b_vol; /* Volume size */
willybayot	0:4db361f2e6d5	3972	}
willybayot	0:4db361f2e6d5	3973
willybayot	0:4db361f2e6d5	3974	if (!au) { /* AU auto selection */
willybayot	0:4db361f2e6d5	3975	vs = n_vol / (2000 / (SS(fs) / 512));
willybayot	0:4db361f2e6d5	3976	for (i = 0; vs < vst[i]; i++) ;
willybayot	0:4db361f2e6d5	3977	au = cst[i];
willybayot	0:4db361f2e6d5	3978	}
willybayot	0:4db361f2e6d5	3979	au /= SS(fs); /* Number of sectors per cluster */
willybayot	0:4db361f2e6d5	3980	if (au == 0) au = 1;
willybayot	0:4db361f2e6d5	3981	if (au > 128) au = 128;
willybayot	0:4db361f2e6d5	3982
willybayot	0:4db361f2e6d5	3983	/* Pre-compute number of clusters and FAT sub-type */
willybayot	0:4db361f2e6d5	3984	n_clst = n_vol / au;
willybayot	0:4db361f2e6d5	3985	fmt = FS_FAT12;
willybayot	0:4db361f2e6d5	3986	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
willybayot	0:4db361f2e6d5	3987	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
willybayot	0:4db361f2e6d5	3988
willybayot	0:4db361f2e6d5	3989	/* Determine offset and size of FAT structure */
willybayot	0:4db361f2e6d5	3990	if (fmt == FS_FAT32) {
willybayot	0:4db361f2e6d5	3991	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
willybayot	0:4db361f2e6d5	3992	n_rsv = 32;
willybayot	0:4db361f2e6d5	3993	n_dir = 0;
willybayot	0:4db361f2e6d5	3994	} else {
willybayot	0:4db361f2e6d5	3995	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
willybayot	0:4db361f2e6d5	3996	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
willybayot	0:4db361f2e6d5	3997	n_rsv = 1;
willybayot	0:4db361f2e6d5	3998	n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
willybayot	0:4db361f2e6d5	3999	}
willybayot	0:4db361f2e6d5	4000	b_fat = b_vol + n_rsv; /* FAT area start sector */
willybayot	0:4db361f2e6d5	4001	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
willybayot	0:4db361f2e6d5	4002	b_data = b_dir + n_dir; /* Data area start sector */
willybayot	0:4db361f2e6d5	4003	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
willybayot	0:4db361f2e6d5	4004
willybayot	0:4db361f2e6d5	4005	/* Align data start sector to erase block boundary (for flash memory media) */
willybayot	0:4db361f2e6d5	4006	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
willybayot	0:4db361f2e6d5	4007	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
willybayot	0:4db361f2e6d5	4008	n = (n - b_data) / N_FATS;
willybayot	0:4db361f2e6d5	4009	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
willybayot	0:4db361f2e6d5	4010	n_rsv += n;
willybayot	0:4db361f2e6d5	4011	b_fat += n;
willybayot	0:4db361f2e6d5	4012	} else { /* FAT12/16: Expand FAT size */
willybayot	0:4db361f2e6d5	4013	n_fat += n;
willybayot	0:4db361f2e6d5	4014	}
willybayot	0:4db361f2e6d5	4015
willybayot	0:4db361f2e6d5	4016	/* Determine number of clusters and final check of validity of the FAT sub-type */
willybayot	0:4db361f2e6d5	4017	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
willybayot	0:4db361f2e6d5	4018	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
willybayot	0:4db361f2e6d5	4019	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
willybayot	0:4db361f2e6d5	4020	return FR_MKFS_ABORTED;
willybayot	0:4db361f2e6d5	4021
willybayot	0:4db361f2e6d5	4022	/* Determine system ID in the partition table */
willybayot	0:4db361f2e6d5	4023	if (fmt == FS_FAT32) {
willybayot	0:4db361f2e6d5	4024	sys = 0x0C; /* FAT32X */
willybayot	0:4db361f2e6d5	4025	} else {
willybayot	0:4db361f2e6d5	4026	if (fmt == FS_FAT12 && n_vol < 0x10000) {
willybayot	0:4db361f2e6d5	4027	sys = 0x01; /* FAT12(<65536) */
willybayot	0:4db361f2e6d5	4028	} else {
willybayot	0:4db361f2e6d5	4029	sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
willybayot	0:4db361f2e6d5	4030	}
willybayot	0:4db361f2e6d5	4031	}
willybayot	0:4db361f2e6d5	4032
willybayot	0:4db361f2e6d5	4033	if (_MULTI_PARTITION && part) {
willybayot	0:4db361f2e6d5	4034	/* Update system ID in the partition table */
willybayot	0:4db361f2e6d5	4035	tbl = &fs->win.d8[MBR_Table + (part - 1) * SZ_PTE];
willybayot	0:4db361f2e6d5	4036	tbl[4] = sys;
willybayot	0:4db361f2e6d5	4037	if (disk_write(pdrv, fs->win.d8, 0, 1)) /* Write it to teh MBR */
willybayot	0:4db361f2e6d5	4038	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	4039	md = 0xF8;
willybayot	0:4db361f2e6d5	4040	} else {
willybayot	0:4db361f2e6d5	4041	if (sfd) { /* No partition table (SFD) */
willybayot	0:4db361f2e6d5	4042	md = 0xF0;
willybayot	0:4db361f2e6d5	4043	} else { /* Create partition table (FDISK) */
willybayot	0:4db361f2e6d5	4044	mem_set(fs->win.d8, 0, SS(fs));
willybayot	0:4db361f2e6d5	4045	tbl = fs->win.d8+MBR_Table; /* Create partition table for single partition in the drive */
willybayot	0:4db361f2e6d5	4046	tbl[1] = 1; /* Partition start head */
willybayot	0:4db361f2e6d5	4047	tbl[2] = 1; /* Partition start sector */
willybayot	0:4db361f2e6d5	4048	tbl[3] = 0; /* Partition start cylinder */
willybayot	0:4db361f2e6d5	4049	tbl[4] = sys; /* System type */
willybayot	0:4db361f2e6d5	4050	tbl[5] = 254; /* Partition end head */
willybayot	0:4db361f2e6d5	4051	n = (b_vol + n_vol) / 63 / 255;
willybayot	0:4db361f2e6d5	4052	tbl[6] = (BYTE)(n >> 2 \| 63); /* Partition end sector */
willybayot	0:4db361f2e6d5	4053	tbl[7] = (BYTE)n; /* End cylinder */
willybayot	0:4db361f2e6d5	4054	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
willybayot	0:4db361f2e6d5	4055	ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
willybayot	0:4db361f2e6d5	4056	ST_WORD(fs->win.d8+BS_55AA, 0xAA55); /* MBR signature */
willybayot	0:4db361f2e6d5	4057	if (disk_write(pdrv, fs->win.d8, 0, 1)) /* Write it to the MBR */
willybayot	0:4db361f2e6d5	4058	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	4059	md = 0xF8;
willybayot	0:4db361f2e6d5	4060	}
willybayot	0:4db361f2e6d5	4061	}
willybayot	0:4db361f2e6d5	4062
willybayot	0:4db361f2e6d5	4063	/* Create BPB in the VBR */
willybayot	0:4db361f2e6d5	4064	tbl = fs->win.d8; /* Clear sector */
willybayot	0:4db361f2e6d5	4065	mem_set(tbl, 0, SS(fs));
willybayot	0:4db361f2e6d5	4066	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
willybayot	0:4db361f2e6d5	4067	i = SS(fs); /* Sector size */
willybayot	0:4db361f2e6d5	4068	ST_WORD(tbl+BPB_BytsPerSec, i);
willybayot	0:4db361f2e6d5	4069	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
willybayot	0:4db361f2e6d5	4070	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
willybayot	0:4db361f2e6d5	4071	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
willybayot	0:4db361f2e6d5	4072	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
willybayot	0:4db361f2e6d5	4073	ST_WORD(tbl+BPB_RootEntCnt, i);
willybayot	0:4db361f2e6d5	4074	if (n_vol < 0x10000) { /* Number of total sectors */
willybayot	0:4db361f2e6d5	4075	ST_WORD(tbl+BPB_TotSec16, n_vol);
willybayot	0:4db361f2e6d5	4076	} else {
willybayot	0:4db361f2e6d5	4077	ST_DWORD(tbl+BPB_TotSec32, n_vol);
willybayot	0:4db361f2e6d5	4078	}
willybayot	0:4db361f2e6d5	4079	tbl[BPB_Media] = md; /* Media descriptor */
willybayot	0:4db361f2e6d5	4080	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
willybayot	0:4db361f2e6d5	4081	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
willybayot	0:4db361f2e6d5	4082	ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
willybayot	0:4db361f2e6d5	4083	n = get_fattime(); /* Use current time as VSN */
willybayot	0:4db361f2e6d5	4084	if (fmt == FS_FAT32) {
willybayot	0:4db361f2e6d5	4085	ST_DWORD(tbl+BS_VolID32, n); /* VSN */
willybayot	0:4db361f2e6d5	4086	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
willybayot	0:4db361f2e6d5	4087	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
willybayot	0:4db361f2e6d5	4088	ST_WORD(tbl+BPB_FSInfo, 1); /* FSINFO record offset (VBR+1) */
willybayot	0:4db361f2e6d5	4089	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
willybayot	0:4db361f2e6d5	4090	tbl[BS_DrvNum32] = 0x80; /* Drive number */
willybayot	0:4db361f2e6d5	4091	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
willybayot	0:4db361f2e6d5	4092	mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
willybayot	0:4db361f2e6d5	4093	} else {
willybayot	0:4db361f2e6d5	4094	ST_DWORD(tbl+BS_VolID, n); /* VSN */
willybayot	0:4db361f2e6d5	4095	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
willybayot	0:4db361f2e6d5	4096	tbl[BS_DrvNum] = 0x80; /* Drive number */
willybayot	0:4db361f2e6d5	4097	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
willybayot	0:4db361f2e6d5	4098	mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
willybayot	0:4db361f2e6d5	4099	}
willybayot	0:4db361f2e6d5	4100	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
willybayot	0:4db361f2e6d5	4101	if (disk_write(pdrv, tbl, b_vol, 1)) /* Write it to the VBR sector */
willybayot	0:4db361f2e6d5	4102	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	4103	if (fmt == FS_FAT32) /* Write backup VBR if needed (VBR+6) */
willybayot	0:4db361f2e6d5	4104	disk_write(pdrv, tbl, b_vol + 6, 1);
willybayot	0:4db361f2e6d5	4105
willybayot	0:4db361f2e6d5	4106	/* Initialize FAT area */
willybayot	0:4db361f2e6d5	4107	wsect = b_fat;
willybayot	0:4db361f2e6d5	4108	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
willybayot	0:4db361f2e6d5	4109	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
willybayot	0:4db361f2e6d5	4110	n = md; /* Media descriptor byte */
willybayot	0:4db361f2e6d5	4111	if (fmt != FS_FAT32) {
willybayot	0:4db361f2e6d5	4112	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
willybayot	0:4db361f2e6d5	4113	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
willybayot	0:4db361f2e6d5	4114	} else {
willybayot	0:4db361f2e6d5	4115	n \|= 0xFFFFFF00;
willybayot	0:4db361f2e6d5	4116	ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
willybayot	0:4db361f2e6d5	4117	ST_DWORD(tbl+4, 0xFFFFFFFF);
willybayot	0:4db361f2e6d5	4118	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
willybayot	0:4db361f2e6d5	4119	}
willybayot	0:4db361f2e6d5	4120	if (disk_write(pdrv, tbl, wsect++, 1))
willybayot	0:4db361f2e6d5	4121	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	4122	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
willybayot	0:4db361f2e6d5	4123	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
willybayot	0:4db361f2e6d5	4124	if (disk_write(pdrv, tbl, wsect++, 1))
willybayot	0:4db361f2e6d5	4125	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	4126	}
willybayot	0:4db361f2e6d5	4127	}
willybayot	0:4db361f2e6d5	4128
willybayot	0:4db361f2e6d5	4129	/* Initialize root directory */
willybayot	0:4db361f2e6d5	4130	i = (fmt == FS_FAT32) ? au : n_dir;
willybayot	0:4db361f2e6d5	4131	do {
willybayot	0:4db361f2e6d5	4132	if (disk_write(pdrv, tbl, wsect++, 1))
willybayot	0:4db361f2e6d5	4133	return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	4134	} while (--i);
willybayot	0:4db361f2e6d5	4135
willybayot	0:4db361f2e6d5	4136	#if _USE_ERASE /* Erase data area if needed */
willybayot	0:4db361f2e6d5	4137	{
willybayot	0:4db361f2e6d5	4138	DWORD eb[2];
willybayot	0:4db361f2e6d5	4139
willybayot	0:4db361f2e6d5	4140	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
willybayot	0:4db361f2e6d5	4141	disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
willybayot	0:4db361f2e6d5	4142	}
willybayot	0:4db361f2e6d5	4143	#endif
willybayot	0:4db361f2e6d5	4144
willybayot	0:4db361f2e6d5	4145	/* Create FSINFO if needed */
willybayot	0:4db361f2e6d5	4146	if (fmt == FS_FAT32) {
willybayot	0:4db361f2e6d5	4147	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
willybayot	0:4db361f2e6d5	4148	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
willybayot	0:4db361f2e6d5	4149	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
willybayot	0:4db361f2e6d5	4150	ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
willybayot	0:4db361f2e6d5	4151	ST_WORD(tbl+BS_55AA, 0xAA55);
willybayot	0:4db361f2e6d5	4152	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
willybayot	0:4db361f2e6d5	4153	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
willybayot	0:4db361f2e6d5	4154	}
willybayot	0:4db361f2e6d5	4155
willybayot	0:4db361f2e6d5	4156	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
willybayot	0:4db361f2e6d5	4157	}
willybayot	0:4db361f2e6d5	4158
willybayot	0:4db361f2e6d5	4159
willybayot	0:4db361f2e6d5	4160
willybayot	0:4db361f2e6d5	4161	#if _MULTI_PARTITION
willybayot	0:4db361f2e6d5	4162	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4163	/* Divide Physical Drive */
willybayot	0:4db361f2e6d5	4164	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4165
willybayot	0:4db361f2e6d5	4166	FRESULT f_fdisk (
willybayot	0:4db361f2e6d5	4167	BYTE pdrv, /* Physical drive number */
willybayot	0:4db361f2e6d5	4168	const DWORD szt[], /* Pointer to the size table for each partitions */
willybayot	0:4db361f2e6d5	4169	void* work /* Pointer to the working buffer */
willybayot	0:4db361f2e6d5	4170	)
willybayot	0:4db361f2e6d5	4171	{
willybayot	0:4db361f2e6d5	4172	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
willybayot	0:4db361f2e6d5	4173	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
willybayot	0:4db361f2e6d5	4174	DSTATUS stat;
willybayot	0:4db361f2e6d5	4175	DWORD sz_disk, sz_part, s_part;
willybayot	0:4db361f2e6d5	4176
willybayot	0:4db361f2e6d5	4177
willybayot	0:4db361f2e6d5	4178	stat = disk_initialize(pdrv);
willybayot	0:4db361f2e6d5	4179	if (stat & STA_NOINIT) return FR_NOT_READY;
willybayot	0:4db361f2e6d5	4180	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
willybayot	0:4db361f2e6d5	4181	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
willybayot	0:4db361f2e6d5	4182
willybayot	0:4db361f2e6d5	4183	/* Determine CHS in the table regardless of the drive geometry */
willybayot	0:4db361f2e6d5	4184	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
willybayot	0:4db361f2e6d5	4185	if (n == 256) n--;
willybayot	0:4db361f2e6d5	4186	e_hd = n - 1;
willybayot	0:4db361f2e6d5	4187	sz_cyl = 63 * n;
willybayot	0:4db361f2e6d5	4188	tot_cyl = sz_disk / sz_cyl;
willybayot	0:4db361f2e6d5	4189
willybayot	0:4db361f2e6d5	4190	/* Create partition table */
willybayot	0:4db361f2e6d5	4191	mem_set(buf, 0, _MAX_SS);
willybayot	0:4db361f2e6d5	4192	p = buf + MBR_Table; b_cyl = 0;
willybayot	0:4db361f2e6d5	4193	for (i = 0; i < 4; i++, p += SZ_PTE) {
willybayot	0:4db361f2e6d5	4194	p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
willybayot	0:4db361f2e6d5	4195	if (!p_cyl) continue;
willybayot	0:4db361f2e6d5	4196	s_part = (DWORD)sz_cyl * b_cyl;
willybayot	0:4db361f2e6d5	4197	sz_part = (DWORD)sz_cyl * p_cyl;
willybayot	0:4db361f2e6d5	4198	if (i == 0) { /* Exclude first track of cylinder 0 */
willybayot	0:4db361f2e6d5	4199	s_hd = 1;
willybayot	0:4db361f2e6d5	4200	s_part += 63; sz_part -= 63;
willybayot	0:4db361f2e6d5	4201	} else {
willybayot	0:4db361f2e6d5	4202	s_hd = 0;
willybayot	0:4db361f2e6d5	4203	}
willybayot	0:4db361f2e6d5	4204	e_cyl = b_cyl + p_cyl - 1;
willybayot	0:4db361f2e6d5	4205	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
willybayot	0:4db361f2e6d5	4206
willybayot	0:4db361f2e6d5	4207	/* Set partition table */
willybayot	0:4db361f2e6d5	4208	p[1] = s_hd; /* Start head */
willybayot	0:4db361f2e6d5	4209	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
willybayot	0:4db361f2e6d5	4210	p[3] = (BYTE)b_cyl; /* Start cylinder */
willybayot	0:4db361f2e6d5	4211	p[4] = 0x06; /* System type (temporary setting) */
willybayot	0:4db361f2e6d5	4212	p[5] = e_hd; /* End head */
willybayot	0:4db361f2e6d5	4213	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
willybayot	0:4db361f2e6d5	4214	p[7] = (BYTE)e_cyl; /* End cylinder */
willybayot	0:4db361f2e6d5	4215	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
willybayot	0:4db361f2e6d5	4216	ST_DWORD(p + 12, sz_part); /* Partition size */
willybayot	0:4db361f2e6d5	4217
willybayot	0:4db361f2e6d5	4218	/* Next partition */
willybayot	0:4db361f2e6d5	4219	b_cyl += p_cyl;
willybayot	0:4db361f2e6d5	4220	}
willybayot	0:4db361f2e6d5	4221	ST_WORD(p, 0xAA55);
willybayot	0:4db361f2e6d5	4222
willybayot	0:4db361f2e6d5	4223	/* Write it to the MBR */
willybayot	0:4db361f2e6d5	4224	return (disk_write(pdrv, buf, 0, 1) \|\| disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
willybayot	0:4db361f2e6d5	4225	}
willybayot	0:4db361f2e6d5	4226
willybayot	0:4db361f2e6d5	4227
willybayot	0:4db361f2e6d5	4228	#endif /* _MULTI_PARTITION */
willybayot	0:4db361f2e6d5	4229	#endif /* _USE_MKFS && !_FS_READONLY */
willybayot	0:4db361f2e6d5	4230
willybayot	0:4db361f2e6d5	4231
willybayot	0:4db361f2e6d5	4232
willybayot	0:4db361f2e6d5	4233
willybayot	0:4db361f2e6d5	4234	#if _USE_STRFUNC
willybayot	0:4db361f2e6d5	4235	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4236	/* Get a string from the file */
willybayot	0:4db361f2e6d5	4237	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4238
willybayot	0:4db361f2e6d5	4239	TCHAR* f_gets (
willybayot	0:4db361f2e6d5	4240	TCHAR* buff, /* Pointer to the string buffer to read */
willybayot	0:4db361f2e6d5	4241	int len, /* Size of string buffer (characters) */
willybayot	0:4db361f2e6d5	4242	FIL* fp /* Pointer to the file object */
willybayot	0:4db361f2e6d5	4243	)
willybayot	0:4db361f2e6d5	4244	{
willybayot	0:4db361f2e6d5	4245	int n = 0;
willybayot	0:4db361f2e6d5	4246	TCHAR c, *p = buff;
willybayot	0:4db361f2e6d5	4247	BYTE s[2];
willybayot	0:4db361f2e6d5	4248	UINT rc;
willybayot	0:4db361f2e6d5	4249
willybayot	0:4db361f2e6d5	4250
willybayot	0:4db361f2e6d5	4251	while (n < len - 1) { /* Read characters until buffer gets filled */
willybayot	0:4db361f2e6d5	4252	#if _LFN_UNICODE
willybayot	0:4db361f2e6d5	4253	#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
willybayot	0:4db361f2e6d5	4254	f_read(fp, s, 1, &rc);
willybayot	0:4db361f2e6d5	4255	if (rc != 1) break;
willybayot	0:4db361f2e6d5	4256	c = s[0];
willybayot	0:4db361f2e6d5	4257	if (c >= 0x80) {
willybayot	0:4db361f2e6d5	4258	if (c < 0xC0) continue; /* Skip stray trailer */
willybayot	0:4db361f2e6d5	4259	if (c < 0xE0) { /* Two-byte sequence */
willybayot	0:4db361f2e6d5	4260	f_read(fp, s, 1, &rc);
willybayot	0:4db361f2e6d5	4261	if (rc != 1) break;
willybayot	0:4db361f2e6d5	4262	c = (c & 0x1F) << 6 \| (s[0] & 0x3F);
willybayot	0:4db361f2e6d5	4263	if (c < 0x80) c = '?';
willybayot	0:4db361f2e6d5	4264	} else {
willybayot	0:4db361f2e6d5	4265	if (c < 0xF0) { /* Three-byte sequence */
willybayot	0:4db361f2e6d5	4266	f_read(fp, s, 2, &rc);
willybayot	0:4db361f2e6d5	4267	if (rc != 2) break;
willybayot	0:4db361f2e6d5	4268	c = c << 12 \| (s[0] & 0x3F) << 6 \| (s[1] & 0x3F);
willybayot	0:4db361f2e6d5	4269	if (c < 0x800) c = '?';
willybayot	0:4db361f2e6d5	4270	} else { /* Reject four-byte sequence */
willybayot	0:4db361f2e6d5	4271	c = '?';
willybayot	0:4db361f2e6d5	4272	}
willybayot	0:4db361f2e6d5	4273	}
willybayot	0:4db361f2e6d5	4274	}
willybayot	0:4db361f2e6d5	4275	#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
willybayot	0:4db361f2e6d5	4276	f_read(fp, s, 2, &rc);
willybayot	0:4db361f2e6d5	4277	if (rc != 2) break;
willybayot	0:4db361f2e6d5	4278	c = s[1] + (s[0] << 8);
willybayot	0:4db361f2e6d5	4279	#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
willybayot	0:4db361f2e6d5	4280	f_read(fp, s, 2, &rc);
willybayot	0:4db361f2e6d5	4281	if (rc != 2) break;
willybayot	0:4db361f2e6d5	4282	c = s[0] + (s[1] << 8);
willybayot	0:4db361f2e6d5	4283	#else /* Read a character in ANSI/OEM */
willybayot	0:4db361f2e6d5	4284	f_read(fp, s, 1, &rc);
willybayot	0:4db361f2e6d5	4285	if (rc != 1) break;
willybayot	0:4db361f2e6d5	4286	c = s[0];
willybayot	0:4db361f2e6d5	4287	if (IsDBCS1(c)) {
willybayot	0:4db361f2e6d5	4288	f_read(fp, s, 1, &rc);
willybayot	0:4db361f2e6d5	4289	if (rc != 1) break;
willybayot	0:4db361f2e6d5	4290	c = (c << 8) + s[0];
willybayot	0:4db361f2e6d5	4291	}
willybayot	0:4db361f2e6d5	4292	c = ff_convert(c, 1); /* OEM -> Unicode */
willybayot	0:4db361f2e6d5	4293	if (!c) c = '?';
willybayot	0:4db361f2e6d5	4294	#endif
willybayot	0:4db361f2e6d5	4295	#else /* Read a character without conversion */
willybayot	0:4db361f2e6d5	4296	f_read(fp, s, 1, &rc);
willybayot	0:4db361f2e6d5	4297	if (rc != 1) break;
willybayot	0:4db361f2e6d5	4298	c = s[0];
willybayot	0:4db361f2e6d5	4299	#endif
willybayot	0:4db361f2e6d5	4300	if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
willybayot	0:4db361f2e6d5	4301	*p++ = c;
willybayot	0:4db361f2e6d5	4302	n++;
willybayot	0:4db361f2e6d5	4303	if (c == '\n') break; /* Break on EOL */
willybayot	0:4db361f2e6d5	4304	}
willybayot	0:4db361f2e6d5	4305	*p = 0;
willybayot	0:4db361f2e6d5	4306	return n ? buff : 0; /* When no data read (eof or error), return with error. */
willybayot	0:4db361f2e6d5	4307	}
willybayot	0:4db361f2e6d5	4308
willybayot	0:4db361f2e6d5	4309
willybayot	0:4db361f2e6d5	4310
willybayot	0:4db361f2e6d5	4311	#if !_FS_READONLY
willybayot	0:4db361f2e6d5	4312	#include <stdarg.h>
willybayot	0:4db361f2e6d5	4313	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4314	/* Put a character to the file */
willybayot	0:4db361f2e6d5	4315	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4316
willybayot	0:4db361f2e6d5	4317	typedef struct {
willybayot	0:4db361f2e6d5	4318	FIL* fp;
willybayot	0:4db361f2e6d5	4319	int idx, nchr;
willybayot	0:4db361f2e6d5	4320	BYTE buf[64];
willybayot	0:4db361f2e6d5	4321	} putbuff;
willybayot	0:4db361f2e6d5	4322
willybayot	0:4db361f2e6d5	4323
willybayot	0:4db361f2e6d5	4324	static
willybayot	0:4db361f2e6d5	4325	void putc_bfd (
willybayot	0:4db361f2e6d5	4326	putbuff* pb,
willybayot	0:4db361f2e6d5	4327	TCHAR c
willybayot	0:4db361f2e6d5	4328	)
willybayot	0:4db361f2e6d5	4329	{
willybayot	0:4db361f2e6d5	4330	UINT bw;
willybayot	0:4db361f2e6d5	4331	int i;
willybayot	0:4db361f2e6d5	4332
willybayot	0:4db361f2e6d5	4333
willybayot	0:4db361f2e6d5	4334	if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
willybayot	0:4db361f2e6d5	4335	putc_bfd(pb, '\r');
willybayot	0:4db361f2e6d5	4336
willybayot	0:4db361f2e6d5	4337	i = pb->idx; /* Buffer write index (-1:error) */
willybayot	0:4db361f2e6d5	4338	if (i < 0) return;
willybayot	0:4db361f2e6d5	4339
willybayot	0:4db361f2e6d5	4340	#if _LFN_UNICODE
willybayot	0:4db361f2e6d5	4341	#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
willybayot	0:4db361f2e6d5	4342	if (c < 0x80) { /* 7-bit */
willybayot	0:4db361f2e6d5	4343	pb->buf[i++] = (BYTE)c;
willybayot	0:4db361f2e6d5	4344	} else {
willybayot	0:4db361f2e6d5	4345	if (c < 0x800) { /* 11-bit */
willybayot	0:4db361f2e6d5	4346	pb->buf[i++] = (BYTE)(0xC0 \| c >> 6);
willybayot	0:4db361f2e6d5	4347	} else { /* 16-bit */
willybayot	0:4db361f2e6d5	4348	pb->buf[i++] = (BYTE)(0xE0 \| c >> 12);
willybayot	0:4db361f2e6d5	4349	pb->buf[i++] = (BYTE)(0x80 \| (c >> 6 & 0x3F));
willybayot	0:4db361f2e6d5	4350	}
willybayot	0:4db361f2e6d5	4351	pb->buf[i++] = (BYTE)(0x80 \| (c & 0x3F));
willybayot	0:4db361f2e6d5	4352	}
willybayot	0:4db361f2e6d5	4353	#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
willybayot	0:4db361f2e6d5	4354	pb->buf[i++] = (BYTE)(c >> 8);
willybayot	0:4db361f2e6d5	4355	pb->buf[i++] = (BYTE)c;
willybayot	0:4db361f2e6d5	4356	#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
willybayot	0:4db361f2e6d5	4357	pb->buf[i++] = (BYTE)c;
willybayot	0:4db361f2e6d5	4358	pb->buf[i++] = (BYTE)(c >> 8);
willybayot	0:4db361f2e6d5	4359	#else /* Write a character in ANSI/OEM */
willybayot	0:4db361f2e6d5	4360	c = ff_convert(c, 0); /* Unicode -> OEM */
willybayot	0:4db361f2e6d5	4361	if (!c) c = '?';
willybayot	0:4db361f2e6d5	4362	if (c >= 0x100)
willybayot	0:4db361f2e6d5	4363	pb->buf[i++] = (BYTE)(c >> 8);
willybayot	0:4db361f2e6d5	4364	pb->buf[i++] = (BYTE)c;
willybayot	0:4db361f2e6d5	4365	#endif
willybayot	0:4db361f2e6d5	4366	#else /* Write a character without conversion */
willybayot	0:4db361f2e6d5	4367	pb->buf[i++] = (BYTE)c;
willybayot	0:4db361f2e6d5	4368	#endif
willybayot	0:4db361f2e6d5	4369
willybayot	0:4db361f2e6d5	4370	if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
willybayot	0:4db361f2e6d5	4371	f_write(pb->fp, pb->buf, (UINT)i, &bw);
willybayot	0:4db361f2e6d5	4372	i = (bw == (UINT)i) ? 0 : -1;
willybayot	0:4db361f2e6d5	4373	}
willybayot	0:4db361f2e6d5	4374	pb->idx = i;
willybayot	0:4db361f2e6d5	4375	pb->nchr++;
willybayot	0:4db361f2e6d5	4376	}
willybayot	0:4db361f2e6d5	4377
willybayot	0:4db361f2e6d5	4378
willybayot	0:4db361f2e6d5	4379
willybayot	0:4db361f2e6d5	4380	int f_putc (
willybayot	0:4db361f2e6d5	4381	TCHAR c, /* A character to be output */
willybayot	0:4db361f2e6d5	4382	FIL* fp /* Pointer to the file object */
willybayot	0:4db361f2e6d5	4383	)
willybayot	0:4db361f2e6d5	4384	{
willybayot	0:4db361f2e6d5	4385	putbuff pb;
willybayot	0:4db361f2e6d5	4386	UINT nw;
willybayot	0:4db361f2e6d5	4387
willybayot	0:4db361f2e6d5	4388
willybayot	0:4db361f2e6d5	4389	pb.fp = fp; /* Initialize output buffer */
willybayot	0:4db361f2e6d5	4390	pb.nchr = pb.idx = 0;
willybayot	0:4db361f2e6d5	4391
willybayot	0:4db361f2e6d5	4392	putc_bfd(&pb, c); /* Put a character */
willybayot	0:4db361f2e6d5	4393
willybayot	0:4db361f2e6d5	4394	if ( pb.idx >= 0 /* Flush buffered characters to the file */
willybayot	0:4db361f2e6d5	4395	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
willybayot	0:4db361f2e6d5	4396	&& (UINT)pb.idx == nw) return pb.nchr;
willybayot	0:4db361f2e6d5	4397	return EOF;
willybayot	0:4db361f2e6d5	4398	}
willybayot	0:4db361f2e6d5	4399
willybayot	0:4db361f2e6d5	4400
willybayot	0:4db361f2e6d5	4401
willybayot	0:4db361f2e6d5	4402
willybayot	0:4db361f2e6d5	4403	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4404	/* Put a string to the file */
willybayot	0:4db361f2e6d5	4405	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4406
willybayot	0:4db361f2e6d5	4407	int f_puts (
willybayot	0:4db361f2e6d5	4408	const TCHAR* str, /* Pointer to the string to be output */
willybayot	0:4db361f2e6d5	4409	FIL* fp /* Pointer to the file object */
willybayot	0:4db361f2e6d5	4410	)
willybayot	0:4db361f2e6d5	4411	{
willybayot	0:4db361f2e6d5	4412	putbuff pb;
willybayot	0:4db361f2e6d5	4413	UINT nw;
willybayot	0:4db361f2e6d5	4414
willybayot	0:4db361f2e6d5	4415
willybayot	0:4db361f2e6d5	4416	pb.fp = fp; /* Initialize output buffer */
willybayot	0:4db361f2e6d5	4417	pb.nchr = pb.idx = 0;
willybayot	0:4db361f2e6d5	4418
willybayot	0:4db361f2e6d5	4419	while (str) / Put the string */
willybayot	0:4db361f2e6d5	4420	putc_bfd(&pb, *str++);
willybayot	0:4db361f2e6d5	4421
willybayot	0:4db361f2e6d5	4422	if ( pb.idx >= 0 /* Flush buffered characters to the file */
willybayot	0:4db361f2e6d5	4423	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
willybayot	0:4db361f2e6d5	4424	&& (UINT)pb.idx == nw) return pb.nchr;
willybayot	0:4db361f2e6d5	4425	return EOF;
willybayot	0:4db361f2e6d5	4426	}
willybayot	0:4db361f2e6d5	4427
willybayot	0:4db361f2e6d5	4428
willybayot	0:4db361f2e6d5	4429
willybayot	0:4db361f2e6d5	4430
willybayot	0:4db361f2e6d5	4431	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4432	/* Put a formatted string to the file */
willybayot	0:4db361f2e6d5	4433	/-----------------------------------------------------------------------/
willybayot	0:4db361f2e6d5	4434
willybayot	0:4db361f2e6d5	4435	int f_printf (
willybayot	0:4db361f2e6d5	4436	FIL* fp, /* Pointer to the file object */
willybayot	0:4db361f2e6d5	4437	const TCHAR* fmt, /* Pointer to the format string */
willybayot	0:4db361f2e6d5	4438	... /* Optional arguments... */
willybayot	0:4db361f2e6d5	4439	)
willybayot	0:4db361f2e6d5	4440	{
willybayot	0:4db361f2e6d5	4441	va_list arp;
willybayot	0:4db361f2e6d5	4442	BYTE f, r;
willybayot	0:4db361f2e6d5	4443	UINT nw, i, j, w;
willybayot	0:4db361f2e6d5	4444	DWORD v;
willybayot	0:4db361f2e6d5	4445	TCHAR c, d, s[16], *p;
willybayot	0:4db361f2e6d5	4446	putbuff pb;
willybayot	0:4db361f2e6d5	4447
willybayot	0:4db361f2e6d5	4448
willybayot	0:4db361f2e6d5	4449	pb.fp = fp; /* Initialize output buffer */
willybayot	0:4db361f2e6d5	4450	pb.nchr = pb.idx = 0;
willybayot	0:4db361f2e6d5	4451
willybayot	0:4db361f2e6d5	4452	va_start(arp, fmt);
willybayot	0:4db361f2e6d5	4453
willybayot	0:4db361f2e6d5	4454	for (;;) {
willybayot	0:4db361f2e6d5	4455	c = *fmt++;
willybayot	0:4db361f2e6d5	4456	if (c == 0) break; /* End of string */
willybayot	0:4db361f2e6d5	4457	if (c != '%') { /* Non escape character */
willybayot	0:4db361f2e6d5	4458	putc_bfd(&pb, c);
willybayot	0:4db361f2e6d5	4459	continue;
willybayot	0:4db361f2e6d5	4460	}
willybayot	0:4db361f2e6d5	4461	w = f = 0;
willybayot	0:4db361f2e6d5	4462	c = *fmt++;
willybayot	0:4db361f2e6d5	4463	if (c == '0') { /* Flag: '0' padding */
willybayot	0:4db361f2e6d5	4464	f = 1; c = *fmt++;
willybayot	0:4db361f2e6d5	4465	} else {
willybayot	0:4db361f2e6d5	4466	if (c == '-') { /* Flag: left justified */
willybayot	0:4db361f2e6d5	4467	f = 2; c = *fmt++;
willybayot	0:4db361f2e6d5	4468	}
willybayot	0:4db361f2e6d5	4469	}
willybayot	0:4db361f2e6d5	4470	while (IsDigit(c)) { /* Precision */
willybayot	0:4db361f2e6d5	4471	w = w * 10 + c - '0';
willybayot	0:4db361f2e6d5	4472	c = *fmt++;
willybayot	0:4db361f2e6d5	4473	}
willybayot	0:4db361f2e6d5	4474	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
willybayot	0:4db361f2e6d5	4475	f \|= 4; c = *fmt++;
willybayot	0:4db361f2e6d5	4476	}
willybayot	0:4db361f2e6d5	4477	if (!c) break;
willybayot	0:4db361f2e6d5	4478	d = c;
willybayot	0:4db361f2e6d5	4479	if (IsLower(d)) d -= 0x20;
willybayot	0:4db361f2e6d5	4480	switch (d) { /* Type is... */
willybayot	0:4db361f2e6d5	4481	case 'S' : /* String */
willybayot	0:4db361f2e6d5	4482	p = va_arg(arp, TCHAR*);
willybayot	0:4db361f2e6d5	4483	for (j = 0; p[j]; j++) ;
willybayot	0:4db361f2e6d5	4484	if (!(f & 2)) {
willybayot	0:4db361f2e6d5	4485	while (j++ < w) putc_bfd(&pb, ' ');
willybayot	0:4db361f2e6d5	4486	}
willybayot	0:4db361f2e6d5	4487	while (p) putc_bfd(&pb, p++);
willybayot	0:4db361f2e6d5	4488	while (j++ < w) putc_bfd(&pb, ' ');
willybayot	0:4db361f2e6d5	4489	continue;
willybayot	0:4db361f2e6d5	4490	case 'C' : /* Character */
willybayot	0:4db361f2e6d5	4491	putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
willybayot	0:4db361f2e6d5	4492	case 'B' : /* Binary */
willybayot	0:4db361f2e6d5	4493	r = 2; break;
willybayot	0:4db361f2e6d5	4494	case 'O' : /* Octal */
willybayot	0:4db361f2e6d5	4495	r = 8; break;
willybayot	0:4db361f2e6d5	4496	case 'D' : /* Signed decimal */
willybayot	0:4db361f2e6d5	4497	case 'U' : /* Unsigned decimal */
willybayot	0:4db361f2e6d5	4498	r = 10; break;
willybayot	0:4db361f2e6d5	4499	case 'X' : /* Hexdecimal */
willybayot	0:4db361f2e6d5	4500	r = 16; break;
willybayot	0:4db361f2e6d5	4501	default: /* Unknown type (pass-through) */
willybayot	0:4db361f2e6d5	4502	putc_bfd(&pb, c); continue;
willybayot	0:4db361f2e6d5	4503	}
willybayot	0:4db361f2e6d5	4504
willybayot	0:4db361f2e6d5	4505	/* Get an argument and put it in numeral */
willybayot	0:4db361f2e6d5	4506	v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));
willybayot	0:4db361f2e6d5	4507	if (d == 'D' && (v & 0x80000000)) {
willybayot	0:4db361f2e6d5	4508	v = 0 - v;
willybayot	0:4db361f2e6d5	4509	f \|= 8;
willybayot	0:4db361f2e6d5	4510	}
willybayot	0:4db361f2e6d5	4511	i = 0;
willybayot	0:4db361f2e6d5	4512	do {
willybayot	0:4db361f2e6d5	4513	d = (TCHAR)(v % r); v /= r;
willybayot	0:4db361f2e6d5	4514	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
willybayot	0:4db361f2e6d5	4515	s[i++] = d + '0';
willybayot	0:4db361f2e6d5	4516	} while (v && i < sizeof s / sizeof s[0]);
willybayot	0:4db361f2e6d5	4517	if (f & 8) s[i++] = '-';
willybayot	0:4db361f2e6d5	4518	j = i; d = (f & 1) ? '0' : ' ';
willybayot	0:4db361f2e6d5	4519	while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
willybayot	0:4db361f2e6d5	4520	do putc_bfd(&pb, s[--i]); while (i);
willybayot	0:4db361f2e6d5	4521	while (j++ < w) putc_bfd(&pb, d);
willybayot	0:4db361f2e6d5	4522	}
willybayot	0:4db361f2e6d5	4523
willybayot	0:4db361f2e6d5	4524	va_end(arp);
willybayot	0:4db361f2e6d5	4525
willybayot	0:4db361f2e6d5	4526	if ( pb.idx >= 0 /* Flush buffered characters to the file */
willybayot	0:4db361f2e6d5	4527	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
willybayot	0:4db361f2e6d5	4528	&& (UINT)pb.idx == nw) return pb.nchr;
willybayot	0:4db361f2e6d5	4529	return EOF;
willybayot	0:4db361f2e6d5	4530	}
willybayot	0:4db361f2e6d5	4531
willybayot	0:4db361f2e6d5	4532	#endif /* !_FS_READONLY */
willybayot	0:4db361f2e6d5	4533	#endif /* _USE_STRFUNC */

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Type:	Library
Created:	04 Jan 2015
Imports:	180
Forks:	0
Commits:	4
Dependents:	1
Dependencies:	0
Followers:	13

ff.c@3:d685bfd3ba5f, 2015-01-05 (annotated)

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