CANary_9341 - Dual CANbus monitor and instrumentation cluster s…

Users » TickTock » Code » CANary_9341

Tick Tock / Mbed 2 deprecated CANary_9341

Dual CANbus monitor and instrumentation cluster supporting ILI9341 display controller

Dependencies: SPI_TFTx2_ILI9341 TOUCH_TFTx2_ILI9341 TFT_fonts mbed

CHAN_FS/ff.cpp@189:439e113fec1c, 2014-05-17 (annotated)

Committer:: TickTock
Date:: Sat May 17 13:53:16 2014 +0000
Revision:: 189:439e113fec1c
Parent:: 137:70853cf5a30f

renamed libraries to avoid conflict with originals

Who changed what in which revision?

User	Revision	Line number	New contents of line
TickTock	109:3e6f0e8fca0d	1	/*----------------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2	/ FatFs - FAT file system module R0.07e (C)ChaN, 2009
TickTock	109:3e6f0e8fca0d	3	/-----------------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	4	/ FatFs module is a generic FAT file system module for small embedded systems.
TickTock	109:3e6f0e8fca0d	5	/ This is a free software that opened for education, research and commercial
TickTock	109:3e6f0e8fca0d	6	/ developments under license policy of following trems.
TickTock	109:3e6f0e8fca0d	7	/
TickTock	109:3e6f0e8fca0d	8	/ Copyright (C) 2009, ChaN, all right reserved.
TickTock	109:3e6f0e8fca0d	9	/
TickTock	109:3e6f0e8fca0d	10	/ * The FatFs module is a free software and there is NO WARRANTY.
TickTock	109:3e6f0e8fca0d	11	/ * No restriction on use. You can use, modify and redistribute it for
TickTock	109:3e6f0e8fca0d	12	/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
TickTock	109:3e6f0e8fca0d	13	/ * Redistributions of source code must retain the above copyright notice.
TickTock	109:3e6f0e8fca0d	14	/
TickTock	109:3e6f0e8fca0d	15	/-----------------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	16	/ Feb 26,'06 R0.00 Prototype.
TickTock	109:3e6f0e8fca0d	17	/
TickTock	109:3e6f0e8fca0d	18	/ Apr 29,'06 R0.01 First stable version.
TickTock	109:3e6f0e8fca0d	19	/
TickTock	109:3e6f0e8fca0d	20	/ Jun 01,'06 R0.02 Added FAT12 support.
TickTock	109:3e6f0e8fca0d	21	/ Removed unbuffered mode.
TickTock	109:3e6f0e8fca0d	22	/ Fixed a problem on small (<32M) patition.
TickTock	109:3e6f0e8fca0d	23	/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
TickTock	109:3e6f0e8fca0d	24	/
TickTock	109:3e6f0e8fca0d	25	/ Sep 22,'06 R0.03 Added f_rename().
TickTock	109:3e6f0e8fca0d	26	/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
TickTock	109:3e6f0e8fca0d	27	/ Dec 11,'06 R0.03a Improved cluster scan algolithm to write files fast.
TickTock	109:3e6f0e8fca0d	28	/ Fixed f_mkdir() creates incorrect directory on FAT32.
TickTock	109:3e6f0e8fca0d	29	/
TickTock	109:3e6f0e8fca0d	30	/ Feb 04,'07 R0.04 Supported multiple drive system.
TickTock	109:3e6f0e8fca0d	31	/ Changed some interfaces for multiple drive system.
TickTock	109:3e6f0e8fca0d	32	/ Changed f_mountdrv() to f_mount().
TickTock	109:3e6f0e8fca0d	33	/ Added f_mkfs().
TickTock	109:3e6f0e8fca0d	34	/ Apr 01,'07 R0.04a Supported multiple partitions on a plysical drive.
TickTock	109:3e6f0e8fca0d	35	/ Added a capability of extending file size to f_lseek().
TickTock	109:3e6f0e8fca0d	36	/ Added minimization level 3.
TickTock	109:3e6f0e8fca0d	37	/ Fixed an endian sensitive code in f_mkfs().
TickTock	109:3e6f0e8fca0d	38	/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
TickTock	109:3e6f0e8fca0d	39	/ Added FSInfo support.
TickTock	109:3e6f0e8fca0d	40	/ Fixed DBCS name can result FR_INVALID_NAME.
TickTock	109:3e6f0e8fca0d	41	/ Fixed short seek (<= csize) collapses the file object.
TickTock	109:3e6f0e8fca0d	42	/
TickTock	109:3e6f0e8fca0d	43	/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
TickTock	109:3e6f0e8fca0d	44	/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
TickTock	109:3e6f0e8fca0d	45	/ Fixed f_mkdir() on FAT32 creates incorrect directory.
TickTock	109:3e6f0e8fca0d	46	/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
TickTock	109:3e6f0e8fca0d	47	/ Fixed off by one error at FAT sub-type determination.
TickTock	109:3e6f0e8fca0d	48	/ Fixed btr in f_read() can be mistruncated.
TickTock	109:3e6f0e8fca0d	49	/ Fixed cached sector is not flushed when create and close
TickTock	109:3e6f0e8fca0d	50	/ without write.
TickTock	109:3e6f0e8fca0d	51	/
TickTock	109:3e6f0e8fca0d	52	/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
TickTock	109:3e6f0e8fca0d	53	/ Improved performance of f_lseek() on moving to the same
TickTock	109:3e6f0e8fca0d	54	/ or following cluster.
TickTock	109:3e6f0e8fca0d	55	/
TickTock	109:3e6f0e8fca0d	56	/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a buffer configuration option.
TickTock	109:3e6f0e8fca0d	57	/ Added long file name support.
TickTock	109:3e6f0e8fca0d	58	/ Added multiple code page support.
TickTock	109:3e6f0e8fca0d	59	/ Added re-entrancy for multitask operation.
TickTock	109:3e6f0e8fca0d	60	/ Added auto cluster size selection to f_mkfs().
TickTock	109:3e6f0e8fca0d	61	/ Added rewind option to f_readdir().
TickTock	109:3e6f0e8fca0d	62	/ Changed result code of critical errors.
TickTock	109:3e6f0e8fca0d	63	/ Renamed string functions to avoid name collision.
TickTock	109:3e6f0e8fca0d	64	/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
TickTock	109:3e6f0e8fca0d	65	/ Added multiple sector size support.
TickTock	109:3e6f0e8fca0d	66	/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
TickTock	109:3e6f0e8fca0d	67	/ Fixed wrong cache control in f_lseek().
TickTock	109:3e6f0e8fca0d	68	/ Added relative path feature.
TickTock	109:3e6f0e8fca0d	69	/ Added f_chdir() and f_chdrive().
TickTock	109:3e6f0e8fca0d	70	/ Added proper case conversion to extended char.
TickTock	109:3e6f0e8fca0d	71	/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
TickTock	109:3e6f0e8fca0d	72	/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
TickTock	109:3e6f0e8fca0d	73	/ Fixed name matching error on the 13 char boundary.
TickTock	109:3e6f0e8fca0d	74	/ Added a configuration option, _LFN_UNICODE.
TickTock	109:3e6f0e8fca0d	75	/ Changed f_readdir() to return the SFN with always upper
TickTock	109:3e6f0e8fca0d	76	/ case on non-LFN cfg.
TickTock	109:3e6f0e8fca0d	77	/---------------------------------------------------------------------------*/
TickTock	109:3e6f0e8fca0d	78
TickTock	109:3e6f0e8fca0d	79	#include "ff.h" /* FatFs configurations and declarations */
TickTock	109:3e6f0e8fca0d	80	#include "diskio.h" /* Declarations of low level disk I/O functions */
TickTock	109:3e6f0e8fca0d	81
TickTock	109:3e6f0e8fca0d	82	/*--------------------------------------------------------------------------
TickTock	109:3e6f0e8fca0d	83
TickTock	109:3e6f0e8fca0d	84	Module Private Definitions
TickTock	109:3e6f0e8fca0d	85
TickTock	109:3e6f0e8fca0d	86	---------------------------------------------------------------------------*/
TickTock	109:3e6f0e8fca0d	87
TickTock	109:3e6f0e8fca0d	88	#if _FATFS != 0x007E
TickTock	109:3e6f0e8fca0d	89	#error Wrong include file (ff.h).
TickTock	109:3e6f0e8fca0d	90	#endif
TickTock	109:3e6f0e8fca0d	91
TickTock	109:3e6f0e8fca0d	92	#if _FS_REENTRANT
TickTock	109:3e6f0e8fca0d	93	#if _USE_LFN == 1
TickTock	109:3e6f0e8fca0d	94	#error Static LFN work area must not be used in re-entrant configuration.
TickTock	109:3e6f0e8fca0d	95	#endif
TickTock	109:3e6f0e8fca0d	96	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
TickTock	109:3e6f0e8fca0d	97	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
TickTock	109:3e6f0e8fca0d	98
TickTock	109:3e6f0e8fca0d	99	#else
TickTock	109:3e6f0e8fca0d	100	#define ENTER_FF(fs)
TickTock	109:3e6f0e8fca0d	101	#define LEAVE_FF(fs, res) return res
TickTock	109:3e6f0e8fca0d	102
TickTock	109:3e6f0e8fca0d	103	#endif
TickTock	109:3e6f0e8fca0d	104
TickTock	109:3e6f0e8fca0d	105	#define ABORT(fs, res) { fp->flag \|= FA__ERROR; LEAVE_FF(fs, res); }
TickTock	109:3e6f0e8fca0d	106
TickTock	109:3e6f0e8fca0d	107	#ifndef NULL
TickTock	109:3e6f0e8fca0d	108	#define NULL 0
TickTock	109:3e6f0e8fca0d	109	#endif
TickTock	109:3e6f0e8fca0d	110
TickTock	109:3e6f0e8fca0d	111	/* Name status flags */
TickTock	109:3e6f0e8fca0d	112	#define NS 11 /* Offset of name status byte */
TickTock	109:3e6f0e8fca0d	113	#define NS_LOSS 0x01 /* Out of 8.3 format */
TickTock	109:3e6f0e8fca0d	114	#define NS_LFN 0x02 /* Force to create LFN entry */
TickTock	109:3e6f0e8fca0d	115	#define NS_LAST 0x04 /* Last segment */
TickTock	109:3e6f0e8fca0d	116	#define NS_BODY 0x08 /* Lower case flag (body) */
TickTock	109:3e6f0e8fca0d	117	#define NS_EXT 0x10 /* Lower case flag (ext) */
TickTock	109:3e6f0e8fca0d	118	#define NS_DOT 0x20 /* Dot entry */
TickTock	109:3e6f0e8fca0d	119
TickTock	109:3e6f0e8fca0d	120
TickTock	109:3e6f0e8fca0d	121
TickTock	109:3e6f0e8fca0d	122
TickTock	109:3e6f0e8fca0d	123	/*--------------------------------------------------------------------------
TickTock	109:3e6f0e8fca0d	124
TickTock	109:3e6f0e8fca0d	125	Private Work Area
TickTock	109:3e6f0e8fca0d	126
TickTock	109:3e6f0e8fca0d	127	---------------------------------------------------------------------------*/
TickTock	109:3e6f0e8fca0d	128
TickTock	109:3e6f0e8fca0d	129	#if _DRIVES < 1 \|\| _DRIVES > 9
TickTock	109:3e6f0e8fca0d	130	#error Number of drives must be 1-9.
TickTock	109:3e6f0e8fca0d	131	#endif
TickTock	109:3e6f0e8fca0d	132	static
TickTock	109:3e6f0e8fca0d	133	FATFS FatFs[_DRIVES]; / Pointer to the file system objects (logical drives) */
TickTock	109:3e6f0e8fca0d	134
TickTock	109:3e6f0e8fca0d	135	static
TickTock	109:3e6f0e8fca0d	136	WORD Fsid; /* File system mount ID */
TickTock	109:3e6f0e8fca0d	137
TickTock	109:3e6f0e8fca0d	138	#if _FS_RPATH
TickTock	109:3e6f0e8fca0d	139	static
TickTock	109:3e6f0e8fca0d	140	BYTE Drive; /* Current drive */
TickTock	109:3e6f0e8fca0d	141	#endif
TickTock	109:3e6f0e8fca0d	142
TickTock	109:3e6f0e8fca0d	143
TickTock	109:3e6f0e8fca0d	144	#if _USE_LFN == 1 /* LFN with static LFN working buffer */
TickTock	109:3e6f0e8fca0d	145	static
TickTock	109:3e6f0e8fca0d	146	WCHAR LfnBuf[_MAX_LFN + 1];
TickTock	109:3e6f0e8fca0d	147	#define NAMEBUF(sp,lp) BYTE sp[12]; WCHAR *lp = LfnBuf
TickTock	109:3e6f0e8fca0d	148	#define INITBUF(dj,sp,lp) dj.fn = sp; dj.lfn = lp
TickTock	109:3e6f0e8fca0d	149
TickTock	109:3e6f0e8fca0d	150	#elif _USE_LFN > 1 /* LFN with dynamic LFN working buffer */
TickTock	109:3e6f0e8fca0d	151	#define NAMEBUF(sp,lp) BYTE sp[12]; WCHAR lbuf[_MAX_LFN + 1], *lp = lbuf
TickTock	109:3e6f0e8fca0d	152	#define INITBUF(dj,sp,lp) dj.fn = sp; dj.lfn = lp
TickTock	109:3e6f0e8fca0d	153
TickTock	109:3e6f0e8fca0d	154	#else /* No LFN */
TickTock	109:3e6f0e8fca0d	155	#define NAMEBUF(sp,lp) BYTE sp[12]
TickTock	109:3e6f0e8fca0d	156	#define INITBUF(dj,sp,lp) dj.fn = sp
TickTock	109:3e6f0e8fca0d	157
TickTock	109:3e6f0e8fca0d	158	#endif
TickTock	109:3e6f0e8fca0d	159
TickTock	109:3e6f0e8fca0d	160
TickTock	109:3e6f0e8fca0d	161
TickTock	109:3e6f0e8fca0d	162
TickTock	109:3e6f0e8fca0d	163	/*--------------------------------------------------------------------------
TickTock	109:3e6f0e8fca0d	164
TickTock	109:3e6f0e8fca0d	165	Module Private Functions
TickTock	109:3e6f0e8fca0d	166
TickTock	109:3e6f0e8fca0d	167	---------------------------------------------------------------------------*/
TickTock	109:3e6f0e8fca0d	168
TickTock	109:3e6f0e8fca0d	169
TickTock	109:3e6f0e8fca0d	170	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	171	/* String functions */
TickTock	109:3e6f0e8fca0d	172	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	173
TickTock	109:3e6f0e8fca0d	174	/* Copy memory to memory */
TickTock	109:3e6f0e8fca0d	175	static
TickTock	109:3e6f0e8fca0d	176	void mem_cpy (void* dst, const void* src, int cnt) {
TickTock	109:3e6f0e8fca0d	177	char d = (char)dst;
TickTock	109:3e6f0e8fca0d	178	const char s = (const char )src;
TickTock	109:3e6f0e8fca0d	179	while (cnt--) d++ = s++;
TickTock	109:3e6f0e8fca0d	180	}
TickTock	109:3e6f0e8fca0d	181
TickTock	109:3e6f0e8fca0d	182	/* Fill memory */
TickTock	109:3e6f0e8fca0d	183	static
TickTock	109:3e6f0e8fca0d	184	void mem_set (void* dst, int val, int cnt) {
TickTock	109:3e6f0e8fca0d	185	char d = (char)dst;
TickTock	109:3e6f0e8fca0d	186	while (cnt--) *d++ = (char)val;
TickTock	109:3e6f0e8fca0d	187	}
TickTock	109:3e6f0e8fca0d	188
TickTock	109:3e6f0e8fca0d	189	/* Compare memory to memory */
TickTock	109:3e6f0e8fca0d	190	static
TickTock	109:3e6f0e8fca0d	191	int mem_cmp (const void* dst, const void* src, int cnt) {
TickTock	109:3e6f0e8fca0d	192	const char d = (const char )dst, s = (const char )src;
TickTock	109:3e6f0e8fca0d	193	int r = 0;
TickTock	109:3e6f0e8fca0d	194	while (cnt-- && (r = d++ - s++) == 0) ;
TickTock	109:3e6f0e8fca0d	195	return r;
TickTock	109:3e6f0e8fca0d	196	}
TickTock	109:3e6f0e8fca0d	197
TickTock	109:3e6f0e8fca0d	198	/* Check if chr is contained in the string */
TickTock	109:3e6f0e8fca0d	199	static
TickTock	109:3e6f0e8fca0d	200	int chk_chr (const char* str, int chr) {
TickTock	109:3e6f0e8fca0d	201	while (str && str != chr) str++;
TickTock	109:3e6f0e8fca0d	202	return *str;
TickTock	109:3e6f0e8fca0d	203	}
TickTock	109:3e6f0e8fca0d	204
TickTock	109:3e6f0e8fca0d	205
TickTock	109:3e6f0e8fca0d	206
TickTock	109:3e6f0e8fca0d	207	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	208	/* Request/Release grant to access the volume */
TickTock	109:3e6f0e8fca0d	209	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	210	#if _FS_REENTRANT
TickTock	109:3e6f0e8fca0d	211
TickTock	109:3e6f0e8fca0d	212	static
TickTock	109:3e6f0e8fca0d	213	BOOL lock_fs (
TickTock	109:3e6f0e8fca0d	214	FATFS fs / File system object */
TickTock	109:3e6f0e8fca0d	215	)
TickTock	109:3e6f0e8fca0d	216	{
TickTock	109:3e6f0e8fca0d	217	return ff_req_grant(fs->sobj);
TickTock	109:3e6f0e8fca0d	218	}
TickTock	109:3e6f0e8fca0d	219
TickTock	109:3e6f0e8fca0d	220
TickTock	109:3e6f0e8fca0d	221	static
TickTock	109:3e6f0e8fca0d	222	void unlock_fs (
TickTock	109:3e6f0e8fca0d	223	FATFS fs, / File system object */
TickTock	109:3e6f0e8fca0d	224	FRESULT res /* Result code to be returned */
TickTock	109:3e6f0e8fca0d	225	)
TickTock	109:3e6f0e8fca0d	226	{
TickTock	109:3e6f0e8fca0d	227	if (res != FR_NOT_ENABLED &&
TickTock	109:3e6f0e8fca0d	228	res != FR_INVALID_DRIVE &&
TickTock	109:3e6f0e8fca0d	229	res != FR_INVALID_OBJECT &&
TickTock	109:3e6f0e8fca0d	230	res != FR_TIMEOUT) {
TickTock	109:3e6f0e8fca0d	231	ff_rel_grant(fs->sobj);
TickTock	109:3e6f0e8fca0d	232	}
TickTock	109:3e6f0e8fca0d	233	}
TickTock	109:3e6f0e8fca0d	234	#endif
TickTock	109:3e6f0e8fca0d	235
TickTock	109:3e6f0e8fca0d	236
TickTock	109:3e6f0e8fca0d	237
TickTock	109:3e6f0e8fca0d	238	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	239	/* Change window offset */
TickTock	109:3e6f0e8fca0d	240	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	241
TickTock	109:3e6f0e8fca0d	242	static
TickTock	109:3e6f0e8fca0d	243	FRESULT move_window (
TickTock	109:3e6f0e8fca0d	244	FATFS fs, / File system object */
TickTock	109:3e6f0e8fca0d	245	DWORD sector /* Sector number to make apperance in the fs->win[] */
TickTock	109:3e6f0e8fca0d	246	) /* Move to zero only writes back dirty window */
TickTock	109:3e6f0e8fca0d	247	{
TickTock	109:3e6f0e8fca0d	248	DWORD wsect;
TickTock	109:3e6f0e8fca0d	249
TickTock	109:3e6f0e8fca0d	250
TickTock	109:3e6f0e8fca0d	251	wsect = fs->winsect;
TickTock	109:3e6f0e8fca0d	252	if (wsect != sector) { /* Changed current window */
TickTock	109:3e6f0e8fca0d	253	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	254	if (fs->wflag) { /* Write back dirty window if needed */
TickTock	109:3e6f0e8fca0d	255	if (disk_write(fs->drive, fs->win, wsect, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	256	return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	257	fs->wflag = 0;
TickTock	109:3e6f0e8fca0d	258	if (wsect < (fs->fatbase + fs->sects_fat)) { /* In FAT area */
TickTock	109:3e6f0e8fca0d	259	BYTE nf;
TickTock	109:3e6f0e8fca0d	260	for (nf = fs->n_fats; nf > 1; nf--) { /* Refrect the change to all FAT copies */
TickTock	109:3e6f0e8fca0d	261	wsect += fs->sects_fat;
TickTock	109:3e6f0e8fca0d	262	disk_write(fs->drive, fs->win, wsect, 1);
TickTock	109:3e6f0e8fca0d	263	}
TickTock	109:3e6f0e8fca0d	264	}
TickTock	109:3e6f0e8fca0d	265	}
TickTock	109:3e6f0e8fca0d	266	#endif
TickTock	109:3e6f0e8fca0d	267	if (sector) {
TickTock	109:3e6f0e8fca0d	268	if (disk_read(fs->drive, fs->win, sector, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	269	return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	270	fs->winsect = sector;
TickTock	109:3e6f0e8fca0d	271	}
TickTock	109:3e6f0e8fca0d	272	}
TickTock	109:3e6f0e8fca0d	273
TickTock	109:3e6f0e8fca0d	274	return FR_OK;
TickTock	109:3e6f0e8fca0d	275	}
TickTock	109:3e6f0e8fca0d	276
TickTock	109:3e6f0e8fca0d	277
TickTock	109:3e6f0e8fca0d	278
TickTock	109:3e6f0e8fca0d	279
TickTock	109:3e6f0e8fca0d	280	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	281	/* Clean-up cached data */
TickTock	109:3e6f0e8fca0d	282	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	283	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	284	static
TickTock	109:3e6f0e8fca0d	285	FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */
TickTock	109:3e6f0e8fca0d	286	FATFS fs / File system object */
TickTock	109:3e6f0e8fca0d	287	)
TickTock	109:3e6f0e8fca0d	288	{
TickTock	109:3e6f0e8fca0d	289	FRESULT res;
TickTock	109:3e6f0e8fca0d	290
TickTock	109:3e6f0e8fca0d	291
TickTock	109:3e6f0e8fca0d	292	res = move_window(fs, 0);
TickTock	109:3e6f0e8fca0d	293	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	294	/* Update FSInfo sector if needed */
TickTock	109:3e6f0e8fca0d	295	if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
TickTock	109:3e6f0e8fca0d	296	fs->winsect = 0;
TickTock	109:3e6f0e8fca0d	297	mem_set(fs->win, 0, 512);
TickTock	109:3e6f0e8fca0d	298	ST_WORD(fs->win+BS_55AA, 0xAA55);
TickTock	109:3e6f0e8fca0d	299	ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
TickTock	109:3e6f0e8fca0d	300	ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
TickTock	109:3e6f0e8fca0d	301	ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
TickTock	109:3e6f0e8fca0d	302	ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
TickTock	109:3e6f0e8fca0d	303	disk_write(fs->drive, fs->win, fs->fsi_sector, 1);
TickTock	109:3e6f0e8fca0d	304	fs->fsi_flag = 0;
TickTock	109:3e6f0e8fca0d	305	}
TickTock	109:3e6f0e8fca0d	306	/* Make sure that no pending write process in the physical drive */
TickTock	109:3e6f0e8fca0d	307	if (disk_ioctl(fs->drive, CTRL_SYNC, (void*)NULL) != RES_OK)
TickTock	109:3e6f0e8fca0d	308	res = FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	309	}
TickTock	109:3e6f0e8fca0d	310
TickTock	109:3e6f0e8fca0d	311	return res;
TickTock	109:3e6f0e8fca0d	312	}
TickTock	109:3e6f0e8fca0d	313	#endif
TickTock	109:3e6f0e8fca0d	314
TickTock	109:3e6f0e8fca0d	315
TickTock	109:3e6f0e8fca0d	316
TickTock	109:3e6f0e8fca0d	317
TickTock	109:3e6f0e8fca0d	318	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	319	/* FAT access - Read value of a FAT entry */
TickTock	109:3e6f0e8fca0d	320	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	321
TickTock	109:3e6f0e8fca0d	322
TickTock	109:3e6f0e8fca0d	323	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Interal error, Else:Cluster status */
TickTock	109:3e6f0e8fca0d	324	FATFS fs, / File system object */
TickTock	109:3e6f0e8fca0d	325	DWORD clst /* Cluster# to get the link information */
TickTock	109:3e6f0e8fca0d	326	)
TickTock	109:3e6f0e8fca0d	327	{
TickTock	109:3e6f0e8fca0d	328	UINT wc, bc;
TickTock	109:3e6f0e8fca0d	329	DWORD fsect;
TickTock	109:3e6f0e8fca0d	330
TickTock	109:3e6f0e8fca0d	331
TickTock	109:3e6f0e8fca0d	332	if (clst < 2 \|\| clst >= fs->max_clust) /* Range check */
TickTock	109:3e6f0e8fca0d	333	return 1;
TickTock	109:3e6f0e8fca0d	334
TickTock	109:3e6f0e8fca0d	335	fsect = fs->fatbase;
TickTock	109:3e6f0e8fca0d	336	switch (fs->fs_type) {
TickTock	109:3e6f0e8fca0d	337	case FS_FAT12 :
TickTock	109:3e6f0e8fca0d	338	bc = clst; bc += bc / 2;
TickTock	109:3e6f0e8fca0d	339	if (move_window(fs, fsect + (bc / SS(fs)))) break;
TickTock	109:3e6f0e8fca0d	340	wc = fs->win[bc & (SS(fs) - 1)]; bc++;
TickTock	109:3e6f0e8fca0d	341	if (move_window(fs, fsect + (bc / SS(fs)))) break;
TickTock	109:3e6f0e8fca0d	342	wc \|= (WORD)fs->win[bc & (SS(fs) - 1)] << 8;
TickTock	109:3e6f0e8fca0d	343	return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
TickTock	109:3e6f0e8fca0d	344
TickTock	109:3e6f0e8fca0d	345	case FS_FAT16 :
TickTock	109:3e6f0e8fca0d	346	if (move_window(fs, fsect + (clst / (SS(fs) / 2)))) break;
TickTock	109:3e6f0e8fca0d	347	return LD_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)]);
TickTock	109:3e6f0e8fca0d	348
TickTock	109:3e6f0e8fca0d	349	case FS_FAT32 :
TickTock	109:3e6f0e8fca0d	350	if (move_window(fs, fsect + (clst / (SS(fs) / 4)))) break;
TickTock	109:3e6f0e8fca0d	351	return LD_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)]) & 0x0FFFFFFF;
TickTock	109:3e6f0e8fca0d	352	}
TickTock	109:3e6f0e8fca0d	353
TickTock	109:3e6f0e8fca0d	354	return 0xFFFFFFFF; /* An error occured at the disk I/O layer */
TickTock	109:3e6f0e8fca0d	355	}
TickTock	109:3e6f0e8fca0d	356
TickTock	109:3e6f0e8fca0d	357
TickTock	109:3e6f0e8fca0d	358
TickTock	109:3e6f0e8fca0d	359
TickTock	109:3e6f0e8fca0d	360	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	361	/* FAT access - Change value of a FAT entry */
TickTock	109:3e6f0e8fca0d	362	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	363	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	364
TickTock	109:3e6f0e8fca0d	365	FRESULT put_fat (
TickTock	109:3e6f0e8fca0d	366	FATFS fs, / File system object */
TickTock	109:3e6f0e8fca0d	367	DWORD clst, /* Cluster# to be changed in range of 2 to fs->max_clust - 1 */
TickTock	109:3e6f0e8fca0d	368	DWORD val /* New value to mark the cluster */
TickTock	109:3e6f0e8fca0d	369	)
TickTock	109:3e6f0e8fca0d	370	{
TickTock	109:3e6f0e8fca0d	371	UINT bc;
TickTock	109:3e6f0e8fca0d	372	BYTE *p;
TickTock	109:3e6f0e8fca0d	373	DWORD fsect;
TickTock	109:3e6f0e8fca0d	374	FRESULT res;
TickTock	109:3e6f0e8fca0d	375
TickTock	109:3e6f0e8fca0d	376
TickTock	109:3e6f0e8fca0d	377	if (clst < 2 \|\| clst >= fs->max_clust) { /* Range check */
TickTock	109:3e6f0e8fca0d	378	res = FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	379
TickTock	109:3e6f0e8fca0d	380	} else {
TickTock	109:3e6f0e8fca0d	381	fsect = fs->fatbase;
TickTock	109:3e6f0e8fca0d	382	switch (fs->fs_type) {
TickTock	109:3e6f0e8fca0d	383	case FS_FAT12 :
TickTock	109:3e6f0e8fca0d	384	bc = clst; bc += bc / 2;
TickTock	109:3e6f0e8fca0d	385	res = move_window(fs, fsect + (bc / SS(fs)));
TickTock	109:3e6f0e8fca0d	386	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	387	p = &fs->win[bc & (SS(fs) - 1)];
TickTock	109:3e6f0e8fca0d	388	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
TickTock	109:3e6f0e8fca0d	389	bc++;
TickTock	109:3e6f0e8fca0d	390	fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	391	res = move_window(fs, fsect + (bc / SS(fs)));
TickTock	109:3e6f0e8fca0d	392	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	393	p = &fs->win[bc & (SS(fs) - 1)];
TickTock	109:3e6f0e8fca0d	394	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
TickTock	109:3e6f0e8fca0d	395	break;
TickTock	109:3e6f0e8fca0d	396
TickTock	109:3e6f0e8fca0d	397	case FS_FAT16 :
TickTock	109:3e6f0e8fca0d	398	res = move_window(fs, fsect + (clst / (SS(fs) / 2)));
TickTock	109:3e6f0e8fca0d	399	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	400	ST_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)], (WORD)val);
TickTock	109:3e6f0e8fca0d	401	break;
TickTock	109:3e6f0e8fca0d	402
TickTock	109:3e6f0e8fca0d	403	case FS_FAT32 :
TickTock	109:3e6f0e8fca0d	404	res = move_window(fs, fsect + (clst / (SS(fs) / 4)));
TickTock	109:3e6f0e8fca0d	405	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	406	ST_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)], val);
TickTock	109:3e6f0e8fca0d	407	break;
TickTock	109:3e6f0e8fca0d	408
TickTock	109:3e6f0e8fca0d	409	default :
TickTock	109:3e6f0e8fca0d	410	res = FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	411	}
TickTock	109:3e6f0e8fca0d	412	fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	413	}
TickTock	109:3e6f0e8fca0d	414
TickTock	109:3e6f0e8fca0d	415	return res;
TickTock	109:3e6f0e8fca0d	416	}
TickTock	109:3e6f0e8fca0d	417	#endif /* !_FS_READONLY */
TickTock	109:3e6f0e8fca0d	418
TickTock	109:3e6f0e8fca0d	419
TickTock	109:3e6f0e8fca0d	420
TickTock	109:3e6f0e8fca0d	421
TickTock	109:3e6f0e8fca0d	422	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	423	/* FAT handling - Remove a cluster chain */
TickTock	109:3e6f0e8fca0d	424	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	425	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	426	static
TickTock	109:3e6f0e8fca0d	427	FRESULT remove_chain (
TickTock	109:3e6f0e8fca0d	428	FATFS fs, / File system object */
TickTock	109:3e6f0e8fca0d	429	DWORD clst /* Cluster# to remove a chain from */
TickTock	109:3e6f0e8fca0d	430	)
TickTock	109:3e6f0e8fca0d	431	{
TickTock	109:3e6f0e8fca0d	432	FRESULT res;
TickTock	109:3e6f0e8fca0d	433	DWORD nxt;
TickTock	109:3e6f0e8fca0d	434
TickTock	109:3e6f0e8fca0d	435
TickTock	109:3e6f0e8fca0d	436	if (clst < 2 \|\| clst >= fs->max_clust) { /* Check the range of cluster# */
TickTock	109:3e6f0e8fca0d	437	res = FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	438
TickTock	109:3e6f0e8fca0d	439	} else {
TickTock	109:3e6f0e8fca0d	440	res = FR_OK;
TickTock	109:3e6f0e8fca0d	441	while (clst < fs->max_clust) { /* Not a last link? */
TickTock	109:3e6f0e8fca0d	442	nxt = get_fat(fs, clst); /* Get cluster status */
TickTock	109:3e6f0e8fca0d	443	if (nxt == 0) break; /* Empty cluster? */
TickTock	109:3e6f0e8fca0d	444	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
TickTock	109:3e6f0e8fca0d	445	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
TickTock	109:3e6f0e8fca0d	446	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
TickTock	109:3e6f0e8fca0d	447	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	448	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */
TickTock	109:3e6f0e8fca0d	449	fs->free_clust++;
TickTock	109:3e6f0e8fca0d	450	fs->fsi_flag = 1;
TickTock	109:3e6f0e8fca0d	451	}
TickTock	109:3e6f0e8fca0d	452	clst = nxt; /* Next cluster */
TickTock	109:3e6f0e8fca0d	453	}
TickTock	109:3e6f0e8fca0d	454	}
TickTock	109:3e6f0e8fca0d	455
TickTock	109:3e6f0e8fca0d	456	return res;
TickTock	109:3e6f0e8fca0d	457	}
TickTock	109:3e6f0e8fca0d	458	#endif
TickTock	109:3e6f0e8fca0d	459
TickTock	109:3e6f0e8fca0d	460
TickTock	109:3e6f0e8fca0d	461
TickTock	109:3e6f0e8fca0d	462
TickTock	109:3e6f0e8fca0d	463	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	464	/* FAT handling - Stretch or Create a cluster chain */
TickTock	109:3e6f0e8fca0d	465	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	466	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	467	static
TickTock	109:3e6f0e8fca0d	468	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
TickTock	109:3e6f0e8fca0d	469	FATFS fs, / File system object */
TickTock	109:3e6f0e8fca0d	470	DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
TickTock	109:3e6f0e8fca0d	471	)
TickTock	109:3e6f0e8fca0d	472	{
TickTock	109:3e6f0e8fca0d	473	DWORD cs, ncl, scl, mcl;
TickTock	109:3e6f0e8fca0d	474
TickTock	109:3e6f0e8fca0d	475
TickTock	109:3e6f0e8fca0d	476	mcl = fs->max_clust;
TickTock	109:3e6f0e8fca0d	477	if (clst == 0) { /* Create new chain */
TickTock	109:3e6f0e8fca0d	478	scl = fs->last_clust; /* Get suggested start point */
TickTock	109:3e6f0e8fca0d	479	if (scl == 0 \|\| scl >= mcl) scl = 1;
TickTock	109:3e6f0e8fca0d	480	}
TickTock	109:3e6f0e8fca0d	481	else { /* Stretch existing chain */
TickTock	109:3e6f0e8fca0d	482	cs = get_fat(fs, clst); /* Check the cluster status */
TickTock	109:3e6f0e8fca0d	483	if (cs < 2) return 1; /* It is an invalid cluster */
TickTock	109:3e6f0e8fca0d	484	if (cs < mcl) return cs; /* It is already followed by next cluster */
TickTock	109:3e6f0e8fca0d	485	scl = clst;
TickTock	109:3e6f0e8fca0d	486	}
TickTock	109:3e6f0e8fca0d	487
TickTock	109:3e6f0e8fca0d	488	ncl = scl; /* Start cluster */
TickTock	109:3e6f0e8fca0d	489	for (;;) {
TickTock	109:3e6f0e8fca0d	490	ncl++; /* Next cluster */
TickTock	109:3e6f0e8fca0d	491	if (ncl >= mcl) { /* Wrap around */
TickTock	109:3e6f0e8fca0d	492	ncl = 2;
TickTock	109:3e6f0e8fca0d	493	if (ncl > scl) return 0; /* No free custer */
TickTock	109:3e6f0e8fca0d	494	}
TickTock	109:3e6f0e8fca0d	495	cs = get_fat(fs, ncl); /* Get the cluster status */
TickTock	109:3e6f0e8fca0d	496	if (cs == 0) break; /* Found a free cluster */
TickTock	109:3e6f0e8fca0d	497	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occured */
TickTock	109:3e6f0e8fca0d	498	return cs;
TickTock	109:3e6f0e8fca0d	499	if (ncl == scl) return 0; /* No free custer */
TickTock	109:3e6f0e8fca0d	500	}
TickTock	109:3e6f0e8fca0d	501
TickTock	109:3e6f0e8fca0d	502	if (put_fat(fs, ncl, 0x0FFFFFFF)) /* Mark the new cluster "in use" */
TickTock	109:3e6f0e8fca0d	503	return 0xFFFFFFFF;
TickTock	109:3e6f0e8fca0d	504	if (clst != 0) { /* Link it to the previous one if needed */
TickTock	109:3e6f0e8fca0d	505	if (put_fat(fs, clst, ncl))
TickTock	109:3e6f0e8fca0d	506	return 0xFFFFFFFF;
TickTock	109:3e6f0e8fca0d	507	}
TickTock	109:3e6f0e8fca0d	508
TickTock	109:3e6f0e8fca0d	509	fs->last_clust = ncl; /* Update FSINFO */
TickTock	109:3e6f0e8fca0d	510	if (fs->free_clust != 0xFFFFFFFF) {
TickTock	109:3e6f0e8fca0d	511	fs->free_clust--;
TickTock	109:3e6f0e8fca0d	512	fs->fsi_flag = 1;
TickTock	109:3e6f0e8fca0d	513	}
TickTock	109:3e6f0e8fca0d	514
TickTock	109:3e6f0e8fca0d	515	return ncl; /* Return new cluster number */
TickTock	109:3e6f0e8fca0d	516	}
TickTock	109:3e6f0e8fca0d	517	#endif /* !_FS_READONLY */
TickTock	109:3e6f0e8fca0d	518
TickTock	109:3e6f0e8fca0d	519
TickTock	109:3e6f0e8fca0d	520
TickTock	109:3e6f0e8fca0d	521
TickTock	109:3e6f0e8fca0d	522	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	523	/* Get sector# from cluster# */
TickTock	109:3e6f0e8fca0d	524	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	525
TickTock	109:3e6f0e8fca0d	526
TickTock	109:3e6f0e8fca0d	527	DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
TickTock	109:3e6f0e8fca0d	528	FATFS fs, / File system object */
TickTock	109:3e6f0e8fca0d	529	DWORD clst /* Cluster# to be converted */
TickTock	109:3e6f0e8fca0d	530	)
TickTock	109:3e6f0e8fca0d	531	{
TickTock	109:3e6f0e8fca0d	532	clst -= 2;
TickTock	109:3e6f0e8fca0d	533	if (clst >= (fs->max_clust - 2)) return 0; /* Invalid cluster# */
TickTock	109:3e6f0e8fca0d	534	return clst * fs->csize + fs->database;
TickTock	109:3e6f0e8fca0d	535	}
TickTock	109:3e6f0e8fca0d	536
TickTock	109:3e6f0e8fca0d	537
TickTock	109:3e6f0e8fca0d	538
TickTock	109:3e6f0e8fca0d	539
TickTock	109:3e6f0e8fca0d	540	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	541	/* Directory handling - Seek directory index */
TickTock	109:3e6f0e8fca0d	542	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	543
TickTock	109:3e6f0e8fca0d	544	static
TickTock	109:3e6f0e8fca0d	545	FRESULT dir_seek (
TickTock	109:3e6f0e8fca0d	546	eDIR dj, / Pointer to directory object */
TickTock	109:3e6f0e8fca0d	547	WORD idx /* Directory index number */
TickTock	109:3e6f0e8fca0d	548	)
TickTock	109:3e6f0e8fca0d	549	{
TickTock	109:3e6f0e8fca0d	550	DWORD clst;
TickTock	109:3e6f0e8fca0d	551	WORD ic;
TickTock	109:3e6f0e8fca0d	552
TickTock	109:3e6f0e8fca0d	553
TickTock	109:3e6f0e8fca0d	554	dj->index = idx;
TickTock	109:3e6f0e8fca0d	555	clst = dj->sclust;
TickTock	109:3e6f0e8fca0d	556	if (clst == 1 \|\| clst >= dj->fs->max_clust) /* Check start cluster range */
TickTock	109:3e6f0e8fca0d	557	return FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	558	if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
TickTock	109:3e6f0e8fca0d	559	clst = dj->fs->dirbase;
TickTock	109:3e6f0e8fca0d	560
TickTock	109:3e6f0e8fca0d	561	if (clst == 0) { /* Static table */
TickTock	109:3e6f0e8fca0d	562	dj->clust = clst;
TickTock	109:3e6f0e8fca0d	563	if (idx >= dj->fs->n_rootdir) /* Index is out of range */
TickTock	109:3e6f0e8fca0d	564	return FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	565	dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / 32); /* Sector# */
TickTock	109:3e6f0e8fca0d	566	}
TickTock	109:3e6f0e8fca0d	567	else { /* Dynamic table */
TickTock	109:3e6f0e8fca0d	568	ic = SS(dj->fs) / 32 * dj->fs->csize; /* Entries per cluster */
TickTock	109:3e6f0e8fca0d	569	while (idx >= ic) { /* Follow cluster chain */
TickTock	109:3e6f0e8fca0d	570	clst = get_fat(dj->fs, clst); /* Get next cluster */
TickTock	109:3e6f0e8fca0d	571	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
TickTock	109:3e6f0e8fca0d	572	if (clst < 2 \|\| clst >= dj->fs->max_clust) /* Reached to end of table or int error */
TickTock	109:3e6f0e8fca0d	573	return FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	574	idx -= ic;
TickTock	109:3e6f0e8fca0d	575	}
TickTock	109:3e6f0e8fca0d	576	dj->clust = clst;
TickTock	109:3e6f0e8fca0d	577	dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / 32); /* Sector# */
TickTock	109:3e6f0e8fca0d	578	}
TickTock	109:3e6f0e8fca0d	579
TickTock	109:3e6f0e8fca0d	580	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / 32)) * 32; /* Ptr to the entry in the sector */
TickTock	109:3e6f0e8fca0d	581
TickTock	109:3e6f0e8fca0d	582	return FR_OK; /* Seek succeeded */
TickTock	109:3e6f0e8fca0d	583	}
TickTock	109:3e6f0e8fca0d	584
TickTock	109:3e6f0e8fca0d	585
TickTock	109:3e6f0e8fca0d	586
TickTock	109:3e6f0e8fca0d	587
TickTock	109:3e6f0e8fca0d	588	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	589	/* Directory handling - Move directory index next */
TickTock	109:3e6f0e8fca0d	590	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	591
TickTock	109:3e6f0e8fca0d	592	static
TickTock	109:3e6f0e8fca0d	593	FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not streach */
TickTock	109:3e6f0e8fca0d	594	eDIR dj, / Pointer to directory object */
TickTock	109:3e6f0e8fca0d	595	BOOL streach /* FALSE: Do not streach table, TRUE: Streach table if needed */
TickTock	109:3e6f0e8fca0d	596	)
TickTock	109:3e6f0e8fca0d	597	{
TickTock	109:3e6f0e8fca0d	598	DWORD clst;
TickTock	109:3e6f0e8fca0d	599	WORD i;
TickTock	109:3e6f0e8fca0d	600
TickTock	109:3e6f0e8fca0d	601
TickTock	109:3e6f0e8fca0d	602	i = dj->index + 1;
TickTock	109:3e6f0e8fca0d	603	if (!i \|\| !dj->sect) /* Report EOT when index has reached 65535 */
TickTock	109:3e6f0e8fca0d	604	return FR_NO_FILE;
TickTock	109:3e6f0e8fca0d	605
TickTock	109:3e6f0e8fca0d	606	if (!(i % (SS(dj->fs) / 32))) { /* Sector changed? */
TickTock	109:3e6f0e8fca0d	607	dj->sect++; /* Next sector */
TickTock	109:3e6f0e8fca0d	608
TickTock	109:3e6f0e8fca0d	609	if (dj->clust == 0) { /* Static table */
TickTock	109:3e6f0e8fca0d	610	if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */
TickTock	109:3e6f0e8fca0d	611	return FR_NO_FILE;
TickTock	109:3e6f0e8fca0d	612	}
TickTock	109:3e6f0e8fca0d	613	else { /* Dynamic table */
TickTock	109:3e6f0e8fca0d	614	if (((i / (SS(dj->fs) / 32)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
TickTock	109:3e6f0e8fca0d	615	clst = get_fat(dj->fs, dj->clust); /* Get next cluster */
TickTock	109:3e6f0e8fca0d	616	if (clst <= 1) return FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	617	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	618	if (clst >= dj->fs->max_clust) { /* When it reached end of dynamic table */
TickTock	109:3e6f0e8fca0d	619	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	620	BYTE c;
TickTock	109:3e6f0e8fca0d	621	if (!streach) return FR_NO_FILE; /* When do not streach, report EOT */
TickTock	109:3e6f0e8fca0d	622	clst = create_chain(dj->fs, dj->clust); /* Streach cluster chain */
TickTock	109:3e6f0e8fca0d	623	if (clst == 0) return FR_DENIED; /* No free cluster */
TickTock	109:3e6f0e8fca0d	624	if (clst == 1) return FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	625	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	626	/* Clean-up streached table */
TickTock	109:3e6f0e8fca0d	627	if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */
TickTock	109:3e6f0e8fca0d	628	mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */
TickTock	109:3e6f0e8fca0d	629	dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */
TickTock	109:3e6f0e8fca0d	630	for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */
TickTock	109:3e6f0e8fca0d	631	dj->fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	632	if (move_window(dj->fs, 0)) return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	633	dj->fs->winsect++;
TickTock	109:3e6f0e8fca0d	634	}
TickTock	109:3e6f0e8fca0d	635	dj->fs->winsect -= c; /* Rewind window address */
TickTock	109:3e6f0e8fca0d	636	#else
TickTock	109:3e6f0e8fca0d	637	return FR_NO_FILE; /* Report EOT */
TickTock	109:3e6f0e8fca0d	638	#endif
TickTock	109:3e6f0e8fca0d	639	}
TickTock	109:3e6f0e8fca0d	640	dj->clust = clst; /* Initialize data for new cluster */
TickTock	109:3e6f0e8fca0d	641	dj->sect = clust2sect(dj->fs, clst);
TickTock	109:3e6f0e8fca0d	642	}
TickTock	109:3e6f0e8fca0d	643	}
TickTock	109:3e6f0e8fca0d	644	}
TickTock	109:3e6f0e8fca0d	645
TickTock	109:3e6f0e8fca0d	646	dj->index = i;
TickTock	109:3e6f0e8fca0d	647	dj->dir = dj->fs->win + (i % (SS(dj->fs) / 32)) * 32;
TickTock	109:3e6f0e8fca0d	648
TickTock	109:3e6f0e8fca0d	649	return FR_OK;
TickTock	109:3e6f0e8fca0d	650	}
TickTock	109:3e6f0e8fca0d	651
TickTock	109:3e6f0e8fca0d	652
TickTock	109:3e6f0e8fca0d	653
TickTock	109:3e6f0e8fca0d	654
TickTock	109:3e6f0e8fca0d	655	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	656	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
TickTock	109:3e6f0e8fca0d	657	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	658	#if _USE_LFN
TickTock	109:3e6f0e8fca0d	659	static
TickTock	109:3e6f0e8fca0d	660	const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */
TickTock	109:3e6f0e8fca0d	661
TickTock	109:3e6f0e8fca0d	662
TickTock	109:3e6f0e8fca0d	663	static
TickTock	109:3e6f0e8fca0d	664	BOOL cmp_lfn ( /* TRUE:Matched, FALSE:Not matched */
TickTock	109:3e6f0e8fca0d	665	WCHAR lfnbuf, / Pointer to the LFN to be compared */
TickTock	109:3e6f0e8fca0d	666	BYTE dir / Pointer to the directory entry containing a part of LFN */
TickTock	109:3e6f0e8fca0d	667	)
TickTock	109:3e6f0e8fca0d	668	{
TickTock	109:3e6f0e8fca0d	669	int i, s;
TickTock	109:3e6f0e8fca0d	670	WCHAR wc, uc;
TickTock	109:3e6f0e8fca0d	671
TickTock	109:3e6f0e8fca0d	672
TickTock	109:3e6f0e8fca0d	673	i = ((dir[LDIR_Ord] & 0xBF) - 1) * 13; /* Get offset in the LFN buffer */
TickTock	109:3e6f0e8fca0d	674	s = 0; wc = 1;
TickTock	109:3e6f0e8fca0d	675	do {
TickTock	109:3e6f0e8fca0d	676	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
TickTock	109:3e6f0e8fca0d	677	if (wc) { /* Last char has not been processed */
TickTock	109:3e6f0e8fca0d	678	wc = ff_wtoupper(uc); /* Convert it to upper case */
TickTock	109:3e6f0e8fca0d	679	if (i >= _MAX_LFN \|\| wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
TickTock	109:3e6f0e8fca0d	680	return FALSE; /* Not matched */
TickTock	109:3e6f0e8fca0d	681	} else {
TickTock	109:3e6f0e8fca0d	682	if (uc != 0xFFFF) return FALSE; /* Check filler */
TickTock	109:3e6f0e8fca0d	683	}
TickTock	109:3e6f0e8fca0d	684	} while (++s < 13); /* Repeat until all chars in the entry are checked */
TickTock	109:3e6f0e8fca0d	685
TickTock	109:3e6f0e8fca0d	686	if ((dir[LDIR_Ord] & 0x40) && wc && lfnbuf[i]) /* Last segment matched but different length */
TickTock	109:3e6f0e8fca0d	687	return FALSE;
TickTock	109:3e6f0e8fca0d	688
TickTock	109:3e6f0e8fca0d	689	return TRUE; /* The part of LFN matched */
TickTock	109:3e6f0e8fca0d	690	}
TickTock	109:3e6f0e8fca0d	691
TickTock	109:3e6f0e8fca0d	692
TickTock	109:3e6f0e8fca0d	693
TickTock	109:3e6f0e8fca0d	694	static
TickTock	109:3e6f0e8fca0d	695	BOOL pick_lfn ( /* TRUE:Succeeded, FALSE:Buffer overflow */
TickTock	109:3e6f0e8fca0d	696	WCHAR lfnbuf, / Pointer to the Unicode-LFN buffer */
TickTock	109:3e6f0e8fca0d	697	BYTE dir / Pointer to the directory entry */
TickTock	109:3e6f0e8fca0d	698	)
TickTock	109:3e6f0e8fca0d	699	{
TickTock	109:3e6f0e8fca0d	700	int i, s;
TickTock	109:3e6f0e8fca0d	701	WCHAR wc, uc;
TickTock	109:3e6f0e8fca0d	702
TickTock	109:3e6f0e8fca0d	703
TickTock	109:3e6f0e8fca0d	704	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
TickTock	109:3e6f0e8fca0d	705
TickTock	109:3e6f0e8fca0d	706	s = 0; wc = 1;
TickTock	109:3e6f0e8fca0d	707	do {
TickTock	109:3e6f0e8fca0d	708	uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
TickTock	109:3e6f0e8fca0d	709	if (wc) { /* Last char has not been processed */
TickTock	109:3e6f0e8fca0d	710	if (i >= _MAX_LFN) return FALSE; /* Buffer overflow? */
TickTock	109:3e6f0e8fca0d	711	lfnbuf[i++] = wc = uc; /* Store it */
TickTock	109:3e6f0e8fca0d	712	} else {
TickTock	109:3e6f0e8fca0d	713	if (uc != 0xFFFF) return FALSE; /* Check filler */
TickTock	109:3e6f0e8fca0d	714	}
TickTock	109:3e6f0e8fca0d	715	} while (++s < 13); /* Read all character in the entry */
TickTock	109:3e6f0e8fca0d	716
TickTock	109:3e6f0e8fca0d	717	if (dir[LDIR_Ord] & 0x40) { /* Put terminator if it is the last LFN part */
TickTock	109:3e6f0e8fca0d	718	if (i >= _MAX_LFN) return FALSE; /* Buffer overflow? */
TickTock	109:3e6f0e8fca0d	719	lfnbuf[i] = 0;
TickTock	109:3e6f0e8fca0d	720	}
TickTock	109:3e6f0e8fca0d	721
TickTock	109:3e6f0e8fca0d	722	return TRUE;
TickTock	109:3e6f0e8fca0d	723	}
TickTock	109:3e6f0e8fca0d	724
TickTock	109:3e6f0e8fca0d	725
TickTock	109:3e6f0e8fca0d	726	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	727	static
TickTock	109:3e6f0e8fca0d	728	void fit_lfn (
TickTock	109:3e6f0e8fca0d	729	const WCHAR lfnbuf, / Pointer to the LFN buffer */
TickTock	109:3e6f0e8fca0d	730	BYTE dir, / Pointer to the directory entry */
TickTock	109:3e6f0e8fca0d	731	BYTE ord, /* LFN order (1-20) */
TickTock	109:3e6f0e8fca0d	732	BYTE sum /* SFN sum */
TickTock	109:3e6f0e8fca0d	733	)
TickTock	109:3e6f0e8fca0d	734	{
TickTock	109:3e6f0e8fca0d	735	int i, s;
TickTock	109:3e6f0e8fca0d	736	WCHAR wc;
TickTock	109:3e6f0e8fca0d	737
TickTock	109:3e6f0e8fca0d	738
TickTock	109:3e6f0e8fca0d	739	dir[LDIR_Chksum] = sum; /* Set check sum */
TickTock	109:3e6f0e8fca0d	740	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
TickTock	109:3e6f0e8fca0d	741	dir[LDIR_Type] = 0;
TickTock	109:3e6f0e8fca0d	742	ST_WORD(dir+LDIR_FstClusLO, 0);
TickTock	109:3e6f0e8fca0d	743
TickTock	109:3e6f0e8fca0d	744	i = (ord - 1) * 13; /* Get offset in the LFN buffer */
TickTock	109:3e6f0e8fca0d	745	s = wc = 0;
TickTock	109:3e6f0e8fca0d	746	do {
TickTock	109:3e6f0e8fca0d	747	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */
TickTock	109:3e6f0e8fca0d	748	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
TickTock	109:3e6f0e8fca0d	749	if (!wc) wc = 0xFFFF; /* Padding chars following last char */
TickTock	109:3e6f0e8fca0d	750	} while (++s < 13);
TickTock	109:3e6f0e8fca0d	751	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= 0x40; /* Bottom LFN part is the start of LFN sequence */
TickTock	109:3e6f0e8fca0d	752	dir[LDIR_Ord] = ord; /* Set the LFN order */
TickTock	109:3e6f0e8fca0d	753	}
TickTock	109:3e6f0e8fca0d	754
TickTock	109:3e6f0e8fca0d	755	#endif
TickTock	109:3e6f0e8fca0d	756	#endif
TickTock	109:3e6f0e8fca0d	757
TickTock	109:3e6f0e8fca0d	758
TickTock	109:3e6f0e8fca0d	759
TickTock	109:3e6f0e8fca0d	760	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	761	/* Create numbered name */
TickTock	109:3e6f0e8fca0d	762	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	763	#if _USE_LFN
TickTock	109:3e6f0e8fca0d	764	void gen_numname (
TickTock	109:3e6f0e8fca0d	765	BYTE dst, / Pointer to genartated SFN */
TickTock	109:3e6f0e8fca0d	766	const BYTE src, / Pointer to source SFN to be modified */
TickTock	109:3e6f0e8fca0d	767	const WCHAR lfn, / Pointer to LFN */
TickTock	109:3e6f0e8fca0d	768	WORD num /* Sequense number */
TickTock	109:3e6f0e8fca0d	769	)
TickTock	109:3e6f0e8fca0d	770	{
TickTock	109:3e6f0e8fca0d	771	char ns[8];
TickTock	109:3e6f0e8fca0d	772	int i, j;
TickTock	109:3e6f0e8fca0d	773
TickTock	109:3e6f0e8fca0d	774
TickTock	109:3e6f0e8fca0d	775	mem_cpy(dst, src, 11);
TickTock	109:3e6f0e8fca0d	776
TickTock	109:3e6f0e8fca0d	777	if (num > 5) { /* On many collisions, generate a hash number instead of sequencial number */
TickTock	109:3e6f0e8fca0d	778	do num = (num >> 1) + (num << 15) + (WORD)lfn++; while (lfn);
TickTock	109:3e6f0e8fca0d	779	}
TickTock	109:3e6f0e8fca0d	780
TickTock	109:3e6f0e8fca0d	781	/* itoa */
TickTock	109:3e6f0e8fca0d	782	i = 7;
TickTock	109:3e6f0e8fca0d	783	do {
TickTock	109:3e6f0e8fca0d	784	ns[i--] = (num % 10) + '0';
TickTock	109:3e6f0e8fca0d	785	num /= 10;
TickTock	109:3e6f0e8fca0d	786	} while (num);
TickTock	109:3e6f0e8fca0d	787	ns[i] = '~';
TickTock	109:3e6f0e8fca0d	788
TickTock	109:3e6f0e8fca0d	789	/* Append the number */
TickTock	109:3e6f0e8fca0d	790	for (j = 0; j < i && dst[j] != ' '; j++) {
TickTock	109:3e6f0e8fca0d	791	if (IsDBCS1(dst[j])) {
TickTock	109:3e6f0e8fca0d	792	if (j == i - 1) break;
TickTock	109:3e6f0e8fca0d	793	j++;
TickTock	109:3e6f0e8fca0d	794	}
TickTock	109:3e6f0e8fca0d	795	}
TickTock	109:3e6f0e8fca0d	796	do {
TickTock	109:3e6f0e8fca0d	797	dst[j++] = (i < 8) ? ns[i++] : ' ';
TickTock	109:3e6f0e8fca0d	798	} while (j < 8);
TickTock	109:3e6f0e8fca0d	799	}
TickTock	109:3e6f0e8fca0d	800	#endif
TickTock	109:3e6f0e8fca0d	801
TickTock	109:3e6f0e8fca0d	802
TickTock	109:3e6f0e8fca0d	803
TickTock	109:3e6f0e8fca0d	804
TickTock	109:3e6f0e8fca0d	805	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	806	/* Calculate sum of an SFN */
TickTock	109:3e6f0e8fca0d	807	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	808	#if _USE_LFN
TickTock	109:3e6f0e8fca0d	809	static
TickTock	109:3e6f0e8fca0d	810	BYTE sum_sfn (
TickTock	109:3e6f0e8fca0d	811	const BYTE dir / Ptr to directory entry */
TickTock	109:3e6f0e8fca0d	812	)
TickTock	109:3e6f0e8fca0d	813	{
TickTock	109:3e6f0e8fca0d	814	BYTE sum = 0;
TickTock	109:3e6f0e8fca0d	815	int n = 11;
TickTock	109:3e6f0e8fca0d	816
TickTock	109:3e6f0e8fca0d	817	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
TickTock	109:3e6f0e8fca0d	818	return sum;
TickTock	109:3e6f0e8fca0d	819	}
TickTock	109:3e6f0e8fca0d	820	#endif
TickTock	109:3e6f0e8fca0d	821
TickTock	109:3e6f0e8fca0d	822
TickTock	109:3e6f0e8fca0d	823
TickTock	109:3e6f0e8fca0d	824
TickTock	109:3e6f0e8fca0d	825	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	826	/* Directory handling - Find an object in the directory */
TickTock	109:3e6f0e8fca0d	827	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	828
TickTock	109:3e6f0e8fca0d	829	static
TickTock	109:3e6f0e8fca0d	830	FRESULT dir_find (
TickTock	109:3e6f0e8fca0d	831	eDIR dj / Pointer to the directory object linked to the file name */
TickTock	109:3e6f0e8fca0d	832	)
TickTock	109:3e6f0e8fca0d	833	{
TickTock	109:3e6f0e8fca0d	834	FRESULT res;
TickTock	109:3e6f0e8fca0d	835	BYTE c, *dir;
TickTock	109:3e6f0e8fca0d	836	#if _USE_LFN
TickTock	109:3e6f0e8fca0d	837	BYTE a, ord, sum;
TickTock	109:3e6f0e8fca0d	838	#endif
TickTock	109:3e6f0e8fca0d	839
TickTock	109:3e6f0e8fca0d	840	res = dir_seek(dj, 0); /* Rewind directory object */
TickTock	109:3e6f0e8fca0d	841	if (res != FR_OK) return res;
TickTock	109:3e6f0e8fca0d	842
TickTock	109:3e6f0e8fca0d	843	#if _USE_LFN
TickTock	109:3e6f0e8fca0d	844	ord = sum = 0xFF;
TickTock	109:3e6f0e8fca0d	845	#endif
TickTock	109:3e6f0e8fca0d	846	do {
TickTock	109:3e6f0e8fca0d	847	res = move_window(dj->fs, dj->sect);
TickTock	109:3e6f0e8fca0d	848	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	849	dir = dj->dir; /* Ptr to the directory entry of current index */
TickTock	109:3e6f0e8fca0d	850	c = dir[DIR_Name];
TickTock	109:3e6f0e8fca0d	851	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
TickTock	109:3e6f0e8fca0d	852	#if _USE_LFN /* LFN configuration */
TickTock	109:3e6f0e8fca0d	853	a = dir[DIR_Attr] & AM_MASK;
TickTock	109:3e6f0e8fca0d	854	if (c == 0xE5 \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
TickTock	109:3e6f0e8fca0d	855	ord = 0xFF;
TickTock	109:3e6f0e8fca0d	856	} else {
TickTock	109:3e6f0e8fca0d	857	if (a == AM_LFN) { /* An LFN entry is found */
TickTock	109:3e6f0e8fca0d	858	if (dj->lfn) {
TickTock	109:3e6f0e8fca0d	859	if (c & 0x40) { /* Is it start of LFN sequence? */
TickTock	109:3e6f0e8fca0d	860	sum = dir[LDIR_Chksum];
TickTock	109:3e6f0e8fca0d	861	c &= 0xBF; ord = c; /* LFN start order */
TickTock	109:3e6f0e8fca0d	862	dj->lfn_idx = dj->index;
TickTock	109:3e6f0e8fca0d	863	}
TickTock	109:3e6f0e8fca0d	864	/* Check validity of the LFN entry and compare it with given name */
TickTock	109:3e6f0e8fca0d	865	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
TickTock	109:3e6f0e8fca0d	866	}
TickTock	109:3e6f0e8fca0d	867	} else { /* An SFN entry is found */
TickTock	109:3e6f0e8fca0d	868	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
TickTock	109:3e6f0e8fca0d	869	ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */
TickTock	109:3e6f0e8fca0d	870	if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */
TickTock	109:3e6f0e8fca0d	871	}
TickTock	109:3e6f0e8fca0d	872	}
TickTock	109:3e6f0e8fca0d	873	#else /* Non LFN configuration */
TickTock	109:3e6f0e8fca0d	874	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
TickTock	109:3e6f0e8fca0d	875	break;
TickTock	109:3e6f0e8fca0d	876	#endif
TickTock	109:3e6f0e8fca0d	877	res = dir_next(dj, FALSE); /* Next entry */
TickTock	109:3e6f0e8fca0d	878	} while (res == FR_OK);
TickTock	109:3e6f0e8fca0d	879
TickTock	109:3e6f0e8fca0d	880	return res;
TickTock	109:3e6f0e8fca0d	881	}
TickTock	109:3e6f0e8fca0d	882
TickTock	109:3e6f0e8fca0d	883
TickTock	109:3e6f0e8fca0d	884
TickTock	109:3e6f0e8fca0d	885
TickTock	109:3e6f0e8fca0d	886	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	887	/* Read an object from the directory */
TickTock	109:3e6f0e8fca0d	888	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	889	#if _FS_MINIMIZE <= 1
TickTock	109:3e6f0e8fca0d	890	static
TickTock	109:3e6f0e8fca0d	891	FRESULT dir_read (
TickTock	109:3e6f0e8fca0d	892	eDIR dj / Pointer to the directory object that pointing the entry to be read */
TickTock	109:3e6f0e8fca0d	893	)
TickTock	109:3e6f0e8fca0d	894	{
TickTock	109:3e6f0e8fca0d	895	FRESULT res;
TickTock	109:3e6f0e8fca0d	896	BYTE c, *dir;
TickTock	109:3e6f0e8fca0d	897	#if _USE_LFN
TickTock	109:3e6f0e8fca0d	898	BYTE a, ord = 0xFF, sum = 0xFF;
TickTock	109:3e6f0e8fca0d	899	#endif
TickTock	109:3e6f0e8fca0d	900
TickTock	109:3e6f0e8fca0d	901	res = FR_NO_FILE;
TickTock	109:3e6f0e8fca0d	902	while (dj->sect) {
TickTock	109:3e6f0e8fca0d	903	res = move_window(dj->fs, dj->sect);
TickTock	109:3e6f0e8fca0d	904	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	905	dir = dj->dir; /* Ptr to the directory entry of current index */
TickTock	109:3e6f0e8fca0d	906	c = dir[DIR_Name];
TickTock	109:3e6f0e8fca0d	907	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
TickTock	109:3e6f0e8fca0d	908	#if _USE_LFN /* LFN configuration */
TickTock	109:3e6f0e8fca0d	909	a = dir[DIR_Attr] & AM_MASK;
TickTock	109:3e6f0e8fca0d	910	if (c == 0xE5 \|\| (!_FS_RPATH && c == '.') \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
TickTock	109:3e6f0e8fca0d	911	ord = 0xFF;
TickTock	109:3e6f0e8fca0d	912	} else {
TickTock	109:3e6f0e8fca0d	913	if (a == AM_LFN) { /* An LFN entry is found */
TickTock	109:3e6f0e8fca0d	914	if (c & 0x40) { /* Is it start of LFN sequence? */
TickTock	109:3e6f0e8fca0d	915	sum = dir[LDIR_Chksum];
TickTock	109:3e6f0e8fca0d	916	c &= 0xBF; ord = c;
TickTock	109:3e6f0e8fca0d	917	dj->lfn_idx = dj->index;
TickTock	109:3e6f0e8fca0d	918	}
TickTock	109:3e6f0e8fca0d	919	/* Check LFN validity and capture it */
TickTock	109:3e6f0e8fca0d	920	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
TickTock	109:3e6f0e8fca0d	921	} else { /* An SFN entry is found */
TickTock	109:3e6f0e8fca0d	922	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
TickTock	109:3e6f0e8fca0d	923	dj->lfn_idx = 0xFFFF; /* It has no LFN. */
TickTock	109:3e6f0e8fca0d	924	break;
TickTock	109:3e6f0e8fca0d	925	}
TickTock	109:3e6f0e8fca0d	926	}
TickTock	109:3e6f0e8fca0d	927	#else /* Non LFN configuration */
TickTock	109:3e6f0e8fca0d	928	if (c != 0xE5 && (_FS_RPATH \|\| c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
TickTock	109:3e6f0e8fca0d	929	break;
TickTock	109:3e6f0e8fca0d	930	#endif
TickTock	109:3e6f0e8fca0d	931	res = dir_next(dj, FALSE); /* Next entry */
TickTock	109:3e6f0e8fca0d	932	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	933	}
TickTock	109:3e6f0e8fca0d	934
TickTock	109:3e6f0e8fca0d	935	if (res != FR_OK) dj->sect = 0;
TickTock	109:3e6f0e8fca0d	936
TickTock	109:3e6f0e8fca0d	937	return res;
TickTock	109:3e6f0e8fca0d	938	}
TickTock	109:3e6f0e8fca0d	939	#endif
TickTock	109:3e6f0e8fca0d	940
TickTock	109:3e6f0e8fca0d	941
TickTock	109:3e6f0e8fca0d	942
TickTock	109:3e6f0e8fca0d	943	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	944	/* Register an object to the directory */
TickTock	109:3e6f0e8fca0d	945	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	946	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	947	static
TickTock	109:3e6f0e8fca0d	948	FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
TickTock	109:3e6f0e8fca0d	949	eDIR dj / Target directory with object name to be created */
TickTock	109:3e6f0e8fca0d	950	)
TickTock	109:3e6f0e8fca0d	951	{
TickTock	109:3e6f0e8fca0d	952	FRESULT res;
TickTock	109:3e6f0e8fca0d	953	BYTE c, *dir;
TickTock	109:3e6f0e8fca0d	954	#if _USE_LFN /* LFN configuration */
TickTock	109:3e6f0e8fca0d	955	WORD n, ne, is;
TickTock	109:3e6f0e8fca0d	956	BYTE sn[12], *fn, sum;
TickTock	109:3e6f0e8fca0d	957	WCHAR *lfn;
TickTock	109:3e6f0e8fca0d	958
TickTock	109:3e6f0e8fca0d	959
TickTock	109:3e6f0e8fca0d	960	fn = dj->fn; lfn = dj->lfn;
TickTock	109:3e6f0e8fca0d	961	mem_cpy(sn, fn, 12);
TickTock	109:3e6f0e8fca0d	962
TickTock	109:3e6f0e8fca0d	963	if (_FS_RPATH && (sn[NS] & NS_DOT)) return FR_INVALID_NAME; /* Cannot create dot entry */
TickTock	109:3e6f0e8fca0d	964
TickTock	109:3e6f0e8fca0d	965	if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
TickTock	109:3e6f0e8fca0d	966	fn[NS] = 0; dj->lfn = NULL; /* Find only SFN */
TickTock	109:3e6f0e8fca0d	967	for (n = 1; n < 100; n++) {
TickTock	109:3e6f0e8fca0d	968	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
TickTock	109:3e6f0e8fca0d	969	res = dir_find(dj); /* Check if the name collides with existing SFN */
TickTock	109:3e6f0e8fca0d	970	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	971	}
TickTock	109:3e6f0e8fca0d	972	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
TickTock	109:3e6f0e8fca0d	973	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
TickTock	109:3e6f0e8fca0d	974	fn[NS] = sn[NS]; dj->lfn = lfn;
TickTock	109:3e6f0e8fca0d	975	}
TickTock	109:3e6f0e8fca0d	976
TickTock	109:3e6f0e8fca0d	977	if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve reserve an SFN + LFN entries. */
TickTock	109:3e6f0e8fca0d	978	for (ne = 0; lfn[ne]; ne++) ;
TickTock	109:3e6f0e8fca0d	979	ne = (ne + 25) / 13;
TickTock	109:3e6f0e8fca0d	980	} else { /* Otherwise reserve only an SFN entry. */
TickTock	109:3e6f0e8fca0d	981	ne = 1;
TickTock	109:3e6f0e8fca0d	982	}
TickTock	109:3e6f0e8fca0d	983
TickTock	109:3e6f0e8fca0d	984	/* Reserve contiguous entries */
TickTock	109:3e6f0e8fca0d	985	res = dir_seek(dj, 0);
TickTock	109:3e6f0e8fca0d	986	if (res != FR_OK) return res;
TickTock	109:3e6f0e8fca0d	987	n = is = 0;
TickTock	109:3e6f0e8fca0d	988	do {
TickTock	109:3e6f0e8fca0d	989	res = move_window(dj->fs, dj->sect);
TickTock	109:3e6f0e8fca0d	990	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	991	c = dj->dir; / Check the entry status */
TickTock	109:3e6f0e8fca0d	992	if (c == 0xE5 \|\| c == 0) { /* Is it a blank entry? */
TickTock	109:3e6f0e8fca0d	993	if (n == 0) is = dj->index; /* First index of the contigulus entry */
TickTock	109:3e6f0e8fca0d	994	if (++n == ne) break; /* A contiguous entry that requiered count is found */
TickTock	109:3e6f0e8fca0d	995	} else {
TickTock	109:3e6f0e8fca0d	996	n = 0; /* Not a blank entry. Restart to search */
TickTock	109:3e6f0e8fca0d	997	}
TickTock	109:3e6f0e8fca0d	998	res = dir_next(dj, TRUE); /* Next entry with table streach */
TickTock	109:3e6f0e8fca0d	999	} while (res == FR_OK);
TickTock	109:3e6f0e8fca0d	1000
TickTock	109:3e6f0e8fca0d	1001	if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */
TickTock	109:3e6f0e8fca0d	1002	res = dir_seek(dj, is);
TickTock	109:3e6f0e8fca0d	1003	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	1004	sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */
TickTock	109:3e6f0e8fca0d	1005	ne--;
TickTock	109:3e6f0e8fca0d	1006	do { /* Store LFN entries in bottom first */
TickTock	109:3e6f0e8fca0d	1007	res = move_window(dj->fs, dj->sect);
TickTock	109:3e6f0e8fca0d	1008	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	1009	fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
TickTock	109:3e6f0e8fca0d	1010	dj->fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	1011	res = dir_next(dj, FALSE); /* Next entry */
TickTock	109:3e6f0e8fca0d	1012	} while (res == FR_OK && --ne);
TickTock	109:3e6f0e8fca0d	1013	}
TickTock	109:3e6f0e8fca0d	1014	}
TickTock	109:3e6f0e8fca0d	1015
TickTock	109:3e6f0e8fca0d	1016	#else /* Non LFN configuration */
TickTock	109:3e6f0e8fca0d	1017	res = dir_seek(dj, 0);
TickTock	109:3e6f0e8fca0d	1018	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	1019	do { /* Find a blank entry for the SFN */
TickTock	109:3e6f0e8fca0d	1020	res = move_window(dj->fs, dj->sect);
TickTock	109:3e6f0e8fca0d	1021	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	1022	c = *dj->dir;
TickTock	109:3e6f0e8fca0d	1023	if (c == 0xE5 \|\| c == 0) break; /* Is it a blank entry? */
TickTock	109:3e6f0e8fca0d	1024	res = dir_next(dj, TRUE); /* Next entry with table streach */
TickTock	109:3e6f0e8fca0d	1025	} while (res == FR_OK);
TickTock	109:3e6f0e8fca0d	1026	}
TickTock	109:3e6f0e8fca0d	1027	#endif
TickTock	109:3e6f0e8fca0d	1028
TickTock	109:3e6f0e8fca0d	1029	if (res == FR_OK) { /* Initialize the SFN entry */
TickTock	109:3e6f0e8fca0d	1030	res = move_window(dj->fs, dj->sect);
TickTock	109:3e6f0e8fca0d	1031	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	1032	dir = dj->dir;
TickTock	109:3e6f0e8fca0d	1033	mem_set(dir, 0, 32); /* Clean the entry */
TickTock	109:3e6f0e8fca0d	1034	mem_cpy(dir, dj->fn, 11); /* Put SFN */
TickTock	109:3e6f0e8fca0d	1035	dir[DIR_NTres] = (dj->fn+NS) & (NS_BODY \| NS_EXT); / Put NT flag */
TickTock	109:3e6f0e8fca0d	1036	dj->fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	1037	}
TickTock	109:3e6f0e8fca0d	1038	}
TickTock	109:3e6f0e8fca0d	1039
TickTock	109:3e6f0e8fca0d	1040	return res;
TickTock	109:3e6f0e8fca0d	1041	}
TickTock	109:3e6f0e8fca0d	1042	#endif /* !_FS_READONLY */
TickTock	109:3e6f0e8fca0d	1043
TickTock	109:3e6f0e8fca0d	1044
TickTock	109:3e6f0e8fca0d	1045
TickTock	109:3e6f0e8fca0d	1046
TickTock	109:3e6f0e8fca0d	1047	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1048	/* Remove an object from the directory */
TickTock	109:3e6f0e8fca0d	1049	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1050	#if !_FS_READONLY && !_FS_MINIMIZE
TickTock	109:3e6f0e8fca0d	1051	static
TickTock	109:3e6f0e8fca0d	1052	FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
TickTock	109:3e6f0e8fca0d	1053	eDIR dj / Directory object pointing the entry to be removed */
TickTock	109:3e6f0e8fca0d	1054	)
TickTock	109:3e6f0e8fca0d	1055	{
TickTock	109:3e6f0e8fca0d	1056	FRESULT res;
TickTock	109:3e6f0e8fca0d	1057	#if _USE_LFN /* LFN configuration */
TickTock	109:3e6f0e8fca0d	1058	WORD i;
TickTock	109:3e6f0e8fca0d	1059
TickTock	109:3e6f0e8fca0d	1060	i = dj->index; /* SFN index */
TickTock	109:3e6f0e8fca0d	1061	res = dir_seek(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */
TickTock	109:3e6f0e8fca0d	1062	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	1063	do {
TickTock	109:3e6f0e8fca0d	1064	res = move_window(dj->fs, dj->sect);
TickTock	109:3e6f0e8fca0d	1065	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	1066	dj->dir = 0xE5; / Mark the entry "deleted" */
TickTock	109:3e6f0e8fca0d	1067	dj->fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	1068	if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
TickTock	109:3e6f0e8fca0d	1069	res = dir_next(dj, FALSE); /* Next entry */
TickTock	109:3e6f0e8fca0d	1070	} while (res == FR_OK);
TickTock	109:3e6f0e8fca0d	1071	if (res == FR_NO_FILE) res = FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	1072	}
TickTock	109:3e6f0e8fca0d	1073
TickTock	109:3e6f0e8fca0d	1074	#else /* Non LFN configuration */
TickTock	109:3e6f0e8fca0d	1075	res = dir_seek(dj, dj->index);
TickTock	109:3e6f0e8fca0d	1076	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	1077	res = move_window(dj->fs, dj->sect);
TickTock	109:3e6f0e8fca0d	1078	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	1079	dj->dir = 0xE5; / Mark the entry "deleted" */
TickTock	109:3e6f0e8fca0d	1080	dj->fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	1081	}
TickTock	109:3e6f0e8fca0d	1082	}
TickTock	109:3e6f0e8fca0d	1083	#endif
TickTock	109:3e6f0e8fca0d	1084
TickTock	109:3e6f0e8fca0d	1085	return res;
TickTock	109:3e6f0e8fca0d	1086	}
TickTock	109:3e6f0e8fca0d	1087	#endif /* !_FS_READONLY */
TickTock	109:3e6f0e8fca0d	1088
TickTock	109:3e6f0e8fca0d	1089
TickTock	109:3e6f0e8fca0d	1090
TickTock	109:3e6f0e8fca0d	1091
TickTock	109:3e6f0e8fca0d	1092	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1093	/* Pick a segment and create the object name in directory form */
TickTock	109:3e6f0e8fca0d	1094	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1095
TickTock	109:3e6f0e8fca0d	1096	static
TickTock	109:3e6f0e8fca0d	1097	FRESULT create_name (
TickTock	109:3e6f0e8fca0d	1098	eDIR dj, / Pointer to the directory object */
TickTock	109:3e6f0e8fca0d	1099	const XCHAR *path / Pointer to pointer to the segment in the path string */
TickTock	109:3e6f0e8fca0d	1100	)
TickTock	109:3e6f0e8fca0d	1101	{
TickTock	109:3e6f0e8fca0d	1102	#ifdef _EXCVT
TickTock	109:3e6f0e8fca0d	1103	static const BYTE cvt[] = _EXCVT;
TickTock	109:3e6f0e8fca0d	1104	#endif
TickTock	109:3e6f0e8fca0d	1105
TickTock	109:3e6f0e8fca0d	1106	#if _USE_LFN /* LFN configuration */
TickTock	109:3e6f0e8fca0d	1107	BYTE b, cf;
TickTock	109:3e6f0e8fca0d	1108	WCHAR w, *lfn;
TickTock	109:3e6f0e8fca0d	1109	int i, ni, si, di;
TickTock	109:3e6f0e8fca0d	1110	const XCHAR *p;
TickTock	109:3e6f0e8fca0d	1111
TickTock	109:3e6f0e8fca0d	1112	/* Create LFN in Unicode */
TickTock	109:3e6f0e8fca0d	1113	si = di = 0;
TickTock	109:3e6f0e8fca0d	1114	p = *path;
TickTock	109:3e6f0e8fca0d	1115	lfn = dj->lfn;
TickTock	109:3e6f0e8fca0d	1116	for (;;) {
TickTock	109:3e6f0e8fca0d	1117	w = p[si++]; /* Get a character */
TickTock	109:3e6f0e8fca0d	1118	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
TickTock	109:3e6f0e8fca0d	1119	if (di >= _MAX_LFN) /* Reject too long name */
TickTock	109:3e6f0e8fca0d	1120	return FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	1121	#if !_LFN_UNICODE
TickTock	109:3e6f0e8fca0d	1122	w &= 0xFF;
TickTock	109:3e6f0e8fca0d	1123	if (IsDBCS1(w)) { /* If it is a DBC 1st byte */
TickTock	109:3e6f0e8fca0d	1124	b = p[si++]; /* Get 2nd byte */
TickTock	109:3e6f0e8fca0d	1125	if (!IsDBCS2(b)) /* Reject invalid code for DBC */
TickTock	109:3e6f0e8fca0d	1126	return FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	1127	w = (w << 8) + b;
TickTock	109:3e6f0e8fca0d	1128	}
TickTock	109:3e6f0e8fca0d	1129	w = ff_convert(w, 1); /* Convert OEM to Unicode */
TickTock	109:3e6f0e8fca0d	1130	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
TickTock	109:3e6f0e8fca0d	1131	#endif
TickTock	109:3e6f0e8fca0d	1132	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal chars for LFN */
TickTock	109:3e6f0e8fca0d	1133	return FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	1134	lfn[di++] = w; /* Store the Unicode char */
TickTock	109:3e6f0e8fca0d	1135	}
TickTock	109:3e6f0e8fca0d	1136	path = &p[si]; / Rerurn pointer to the next segment */
TickTock	109:3e6f0e8fca0d	1137	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
TickTock	109:3e6f0e8fca0d	1138	#if _FS_RPATH
TickTock	109:3e6f0e8fca0d	1139	if ((di == 1 && lfn[di - 1] == '.') \|\| /* Is this a dot entry? */
TickTock	109:3e6f0e8fca0d	1140	(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) {
TickTock	109:3e6f0e8fca0d	1141	lfn[di] = 0;
TickTock	109:3e6f0e8fca0d	1142	for (i = 0; i < 11; i++)
TickTock	109:3e6f0e8fca0d	1143	dj->fn[i] = (i < di) ? '.' : ' ';
TickTock	109:3e6f0e8fca0d	1144	dj->fn[i] = cf \| NS_DOT; /* This is a dot entry */
TickTock	109:3e6f0e8fca0d	1145	return FR_OK;
TickTock	109:3e6f0e8fca0d	1146	}
TickTock	109:3e6f0e8fca0d	1147	#endif
TickTock	109:3e6f0e8fca0d	1148	while (di) { /* Strip trailing spaces and dots */
TickTock	109:3e6f0e8fca0d	1149	w = lfn[di - 1];
TickTock	109:3e6f0e8fca0d	1150	if (w != ' ' && w != '.') break;
TickTock	109:3e6f0e8fca0d	1151	di--;
TickTock	109:3e6f0e8fca0d	1152	}
TickTock	109:3e6f0e8fca0d	1153	if (!di) return FR_INVALID_NAME; /* Reject null string */
TickTock	109:3e6f0e8fca0d	1154
TickTock	109:3e6f0e8fca0d	1155	lfn[di] = 0; /* LFN is created */
TickTock	109:3e6f0e8fca0d	1156
TickTock	109:3e6f0e8fca0d	1157	/* Create SFN in directory form */
TickTock	109:3e6f0e8fca0d	1158	mem_set(dj->fn, ' ', 11);
TickTock	109:3e6f0e8fca0d	1159	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
TickTock	109:3e6f0e8fca0d	1160	if (si) cf \|= NS_LOSS \| NS_LFN;
TickTock	109:3e6f0e8fca0d	1161	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
TickTock	109:3e6f0e8fca0d	1162
TickTock	109:3e6f0e8fca0d	1163	b = i = 0; ni = 8;
TickTock	109:3e6f0e8fca0d	1164	for (;;) {
TickTock	109:3e6f0e8fca0d	1165	w = lfn[si++]; /* Get an LFN char */
TickTock	109:3e6f0e8fca0d	1166	if (!w) break; /* Break on enf of the LFN */
TickTock	109:3e6f0e8fca0d	1167	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
TickTock	109:3e6f0e8fca0d	1168	cf \|= NS_LOSS \| NS_LFN; continue;
TickTock	109:3e6f0e8fca0d	1169	}
TickTock	109:3e6f0e8fca0d	1170
TickTock	109:3e6f0e8fca0d	1171	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
TickTock	109:3e6f0e8fca0d	1172	if (ni == 11) { /* Long extension */
TickTock	109:3e6f0e8fca0d	1173	cf \|= NS_LOSS \| NS_LFN; break;
TickTock	109:3e6f0e8fca0d	1174	}
TickTock	109:3e6f0e8fca0d	1175	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
TickTock	109:3e6f0e8fca0d	1176	if (si > di) break; /* No extension */
TickTock	109:3e6f0e8fca0d	1177	si = di; i = 8; ni = 11; /* Enter extension section */
TickTock	109:3e6f0e8fca0d	1178	b <<= 2; continue;
TickTock	109:3e6f0e8fca0d	1179	}
TickTock	109:3e6f0e8fca0d	1180
TickTock	109:3e6f0e8fca0d	1181	if (w >= 0x80) { /* Non ASCII char */
TickTock	109:3e6f0e8fca0d	1182	#ifdef _EXCVT
TickTock	109:3e6f0e8fca0d	1183	w = ff_convert(w, 0); /* Unicode -> OEM code */
TickTock	109:3e6f0e8fca0d	1184	if (w) w = cvt[w - 0x80]; /* Convert extended char to upper (SBCS) */
TickTock	109:3e6f0e8fca0d	1185	#else
TickTock	109:3e6f0e8fca0d	1186	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
TickTock	109:3e6f0e8fca0d	1187	#endif
TickTock	109:3e6f0e8fca0d	1188	cf \|= NS_LFN; /* Force create LFN entry */
TickTock	109:3e6f0e8fca0d	1189	}
TickTock	109:3e6f0e8fca0d	1190
TickTock	109:3e6f0e8fca0d	1191	if (_DF1S && w >= 0x100) { /* Double byte char */
TickTock	109:3e6f0e8fca0d	1192	if (i >= ni - 1) {
TickTock	109:3e6f0e8fca0d	1193	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
TickTock	109:3e6f0e8fca0d	1194	}
TickTock	109:3e6f0e8fca0d	1195	dj->fn[i++] = (BYTE)(w >> 8);
TickTock	109:3e6f0e8fca0d	1196	} else { /* Single byte char */
TickTock	109:3e6f0e8fca0d	1197	if (!w \|\| chk_chr("+,;[=]", w)) { /* Replace illegal chars for SFN */
TickTock	109:3e6f0e8fca0d	1198	w = '_'; cf \|= NS_LOSS \| NS_LFN; /* Lossy conversion */
TickTock	109:3e6f0e8fca0d	1199	} else {
TickTock	109:3e6f0e8fca0d	1200	if (IsUpper(w)) { /* ASCII large capital */
TickTock	109:3e6f0e8fca0d	1201	b \|= 2;
TickTock	109:3e6f0e8fca0d	1202	} else {
TickTock	109:3e6f0e8fca0d	1203	if (IsLower(w)) { /* ASCII small capital */
TickTock	109:3e6f0e8fca0d	1204	b \|= 1; w -= 0x20;
TickTock	109:3e6f0e8fca0d	1205	}
TickTock	109:3e6f0e8fca0d	1206	}
TickTock	109:3e6f0e8fca0d	1207	}
TickTock	109:3e6f0e8fca0d	1208	}
TickTock	109:3e6f0e8fca0d	1209	dj->fn[i++] = (BYTE)w;
TickTock	109:3e6f0e8fca0d	1210	}
TickTock	109:3e6f0e8fca0d	1211
TickTock	109:3e6f0e8fca0d	1212	if (dj->fn[0] == 0xE5) dj->fn[0] = 0x05; /* If the first char collides with deleted mark, replace it with 0x05 */
TickTock	109:3e6f0e8fca0d	1213
TickTock	109:3e6f0e8fca0d	1214	if (ni == 8) b <<= 2;
TickTock	109:3e6f0e8fca0d	1215	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
TickTock	109:3e6f0e8fca0d	1216	cf \|= NS_LFN;
TickTock	109:3e6f0e8fca0d	1217	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */
TickTock	109:3e6f0e8fca0d	1218	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
TickTock	109:3e6f0e8fca0d	1219	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
TickTock	109:3e6f0e8fca0d	1220	}
TickTock	109:3e6f0e8fca0d	1221
TickTock	109:3e6f0e8fca0d	1222	dj->fn[NS] = cf; /* SFN is created */
TickTock	109:3e6f0e8fca0d	1223
TickTock	109:3e6f0e8fca0d	1224	return FR_OK;
TickTock	109:3e6f0e8fca0d	1225
TickTock	109:3e6f0e8fca0d	1226
TickTock	109:3e6f0e8fca0d	1227	#else /* Non-LFN configuration */
TickTock	109:3e6f0e8fca0d	1228	BYTE b, c, d, *sfn;
TickTock	109:3e6f0e8fca0d	1229	int ni, si, i;
TickTock	109:3e6f0e8fca0d	1230	const char *p;
TickTock	109:3e6f0e8fca0d	1231
TickTock	109:3e6f0e8fca0d	1232	/* Create file name in directory form */
TickTock	109:3e6f0e8fca0d	1233	sfn = dj->fn;
TickTock	109:3e6f0e8fca0d	1234	mem_set(sfn, ' ', 11);
TickTock	109:3e6f0e8fca0d	1235	si = i = b = 0; ni = 8;
TickTock	109:3e6f0e8fca0d	1236	p = *path;
TickTock	109:3e6f0e8fca0d	1237	#if _FS_RPATH
TickTock	109:3e6f0e8fca0d	1238	if (p[si] == '.') { /* Is this a dot entry? */
TickTock	109:3e6f0e8fca0d	1239	for (;;) {
TickTock	109:3e6f0e8fca0d	1240	c = p[si++];
TickTock	109:3e6f0e8fca0d	1241	if (c != '.' \|\| si >= 3) break;
TickTock	109:3e6f0e8fca0d	1242	sfn[i++] = c;
TickTock	109:3e6f0e8fca0d	1243	}
TickTock	109:3e6f0e8fca0d	1244	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	1245	path = &p[si]; / Rerurn pointer to the next segment */
TickTock	109:3e6f0e8fca0d	1246	sfn[NS] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
TickTock	109:3e6f0e8fca0d	1247	return FR_OK;
TickTock	109:3e6f0e8fca0d	1248	}
TickTock	109:3e6f0e8fca0d	1249	#endif
TickTock	109:3e6f0e8fca0d	1250	for (;;) {
TickTock	109:3e6f0e8fca0d	1251	c = p[si++];
TickTock	109:3e6f0e8fca0d	1252	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
TickTock	109:3e6f0e8fca0d	1253	if (c == '.' \|\| i >= ni) {
TickTock	109:3e6f0e8fca0d	1254	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	1255	i = 8; ni = 11;
TickTock	109:3e6f0e8fca0d	1256	b <<= 2; continue;
TickTock	109:3e6f0e8fca0d	1257	}
TickTock	109:3e6f0e8fca0d	1258	if (c >= 0x80) { /* Extended char */
TickTock	109:3e6f0e8fca0d	1259	#ifdef _EXCVT
TickTock	109:3e6f0e8fca0d	1260	c = cvt[c - 0x80]; /* Convert extend char (SBCS) */
TickTock	109:3e6f0e8fca0d	1261	#else
TickTock	109:3e6f0e8fca0d	1262	b \|= 3; /* Eliminate NT flag if ext char is exist */
TickTock	109:3e6f0e8fca0d	1263	#if !_DF1S /* ASCII only cfg */
TickTock	109:3e6f0e8fca0d	1264	return FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	1265	#endif
TickTock	109:3e6f0e8fca0d	1266	#endif
TickTock	109:3e6f0e8fca0d	1267	}
TickTock	109:3e6f0e8fca0d	1268	if (IsDBCS1(c)) { /* DBC 1st byte? */
TickTock	109:3e6f0e8fca0d	1269	d = p[si++]; /* Get 2nd byte */
TickTock	109:3e6f0e8fca0d	1270	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
TickTock	109:3e6f0e8fca0d	1271	return FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	1272	sfn[i++] = c;
TickTock	109:3e6f0e8fca0d	1273	sfn[i++] = d;
TickTock	109:3e6f0e8fca0d	1274	} else { /* Single byte code */
TickTock	109:3e6f0e8fca0d	1275	if (chk_chr(" \"+,[=]\|\x7F", c)) / Reject illegal chrs for SFN */
TickTock	109:3e6f0e8fca0d	1276	return FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	1277	if (IsUpper(c)) { /* ASCII large capital? */
TickTock	109:3e6f0e8fca0d	1278	b \|= 2;
TickTock	109:3e6f0e8fca0d	1279	} else {
TickTock	109:3e6f0e8fca0d	1280	if (IsLower(c)) { /* ASCII small capital? */
TickTock	109:3e6f0e8fca0d	1281	b \|= 1; c -= 0x20;
TickTock	109:3e6f0e8fca0d	1282	}
TickTock	109:3e6f0e8fca0d	1283	}
TickTock	109:3e6f0e8fca0d	1284	sfn[i++] = c;
TickTock	109:3e6f0e8fca0d	1285	}
TickTock	109:3e6f0e8fca0d	1286	}
TickTock	109:3e6f0e8fca0d	1287	path = &p[si]; / Rerurn pointer to the next segment */
TickTock	109:3e6f0e8fca0d	1288	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
TickTock	109:3e6f0e8fca0d	1289
TickTock	109:3e6f0e8fca0d	1290	if (!i) return FR_INVALID_NAME; /* Reject null string */
TickTock	109:3e6f0e8fca0d	1291	if (sfn[0] == 0xE5) sfn[0] = 0x05; /* When first char collides with 0xE5, replace it with 0x05 */
TickTock	109:3e6f0e8fca0d	1292
TickTock	109:3e6f0e8fca0d	1293	if (ni == 8) b <<= 2;
TickTock	109:3e6f0e8fca0d	1294	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Extension has only small capital) */
TickTock	109:3e6f0e8fca0d	1295	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Filename has only small capital) */
TickTock	109:3e6f0e8fca0d	1296
TickTock	109:3e6f0e8fca0d	1297	sfn[NS] = c; /* Store NT flag, File name is created */
TickTock	109:3e6f0e8fca0d	1298
TickTock	109:3e6f0e8fca0d	1299	return FR_OK;
TickTock	109:3e6f0e8fca0d	1300	#endif
TickTock	109:3e6f0e8fca0d	1301	}
TickTock	109:3e6f0e8fca0d	1302
TickTock	109:3e6f0e8fca0d	1303
TickTock	109:3e6f0e8fca0d	1304
TickTock	109:3e6f0e8fca0d	1305
TickTock	109:3e6f0e8fca0d	1306	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1307	/* Get file information from directory entry */
TickTock	109:3e6f0e8fca0d	1308	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1309	#if _FS_MINIMIZE <= 1
TickTock	109:3e6f0e8fca0d	1310	static
TickTock	109:3e6f0e8fca0d	1311	void get_fileinfo ( /* No return code */
TickTock	109:3e6f0e8fca0d	1312	eDIR dj, / Pointer to the directory object */
TickTock	109:3e6f0e8fca0d	1313	FILINFO fno / Pointer to the file information to be filled */
TickTock	109:3e6f0e8fca0d	1314	)
TickTock	109:3e6f0e8fca0d	1315	{
TickTock	109:3e6f0e8fca0d	1316	int i;
TickTock	109:3e6f0e8fca0d	1317	BYTE c, nt, *dir;
TickTock	109:3e6f0e8fca0d	1318	char *p;
TickTock	109:3e6f0e8fca0d	1319
TickTock	109:3e6f0e8fca0d	1320
TickTock	109:3e6f0e8fca0d	1321	p = fno->fname;
TickTock	109:3e6f0e8fca0d	1322	if (dj->sect) {
TickTock	109:3e6f0e8fca0d	1323	dir = dj->dir;
TickTock	109:3e6f0e8fca0d	1324	nt = dir[DIR_NTres]; /* NT flag */
TickTock	109:3e6f0e8fca0d	1325	for (i = 0; i < 8; i++) { /* Copy name body */
TickTock	109:3e6f0e8fca0d	1326	c = dir[i];
TickTock	109:3e6f0e8fca0d	1327	if (c == ' ') break;
TickTock	109:3e6f0e8fca0d	1328	if (c == 0x05) c = 0xE5;
TickTock	109:3e6f0e8fca0d	1329	if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
TickTock	109:3e6f0e8fca0d	1330	*p++ = c;
TickTock	109:3e6f0e8fca0d	1331	}
TickTock	109:3e6f0e8fca0d	1332	if (dir[8] != ' ') { /* Copy name extension */
TickTock	109:3e6f0e8fca0d	1333	*p++ = '.';
TickTock	109:3e6f0e8fca0d	1334	for (i = 8; i < 11; i++) {
TickTock	109:3e6f0e8fca0d	1335	c = dir[i];
TickTock	109:3e6f0e8fca0d	1336	if (c == ' ') break;
TickTock	109:3e6f0e8fca0d	1337	if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
TickTock	109:3e6f0e8fca0d	1338	*p++ = c;
TickTock	109:3e6f0e8fca0d	1339	}
TickTock	109:3e6f0e8fca0d	1340	}
TickTock	109:3e6f0e8fca0d	1341	fno->fattrib = dir[DIR_Attr]; /* Attribute */
TickTock	109:3e6f0e8fca0d	1342	fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
TickTock	109:3e6f0e8fca0d	1343	fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
TickTock	109:3e6f0e8fca0d	1344	fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
TickTock	109:3e6f0e8fca0d	1345	}
TickTock	109:3e6f0e8fca0d	1346	*p = 0;
TickTock	109:3e6f0e8fca0d	1347
TickTock	109:3e6f0e8fca0d	1348	#if _USE_LFN
TickTock	109:3e6f0e8fca0d	1349	if (fno->lfname) {
TickTock	109:3e6f0e8fca0d	1350	XCHAR *tp = fno->lfname;
TickTock	109:3e6f0e8fca0d	1351	WCHAR w, *lfn;
TickTock	109:3e6f0e8fca0d	1352
TickTock	109:3e6f0e8fca0d	1353	i = 0;
TickTock	109:3e6f0e8fca0d	1354	if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
TickTock	109:3e6f0e8fca0d	1355	lfn = dj->lfn;
TickTock	109:3e6f0e8fca0d	1356	while ((w = lfn++) != 0) { / Get an LFN char */
TickTock	109:3e6f0e8fca0d	1357	#if !_LFN_UNICODE
TickTock	109:3e6f0e8fca0d	1358	w = ff_convert(w, 0); /* Unicode -> OEM conversion */
TickTock	109:3e6f0e8fca0d	1359	if (!w) { i = 0; break; } /* Could not convert, no LFN */
TickTock	109:3e6f0e8fca0d	1360	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC */
TickTock	109:3e6f0e8fca0d	1361	tp[i++] = (XCHAR)(w >> 8);
TickTock	109:3e6f0e8fca0d	1362	#endif
TickTock	109:3e6f0e8fca0d	1363	if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overrun, no LFN */
TickTock	109:3e6f0e8fca0d	1364	tp[i++] = (XCHAR)w;
TickTock	109:3e6f0e8fca0d	1365	}
TickTock	109:3e6f0e8fca0d	1366	}
TickTock	109:3e6f0e8fca0d	1367	tp[i] = 0; /* Terminator */
TickTock	109:3e6f0e8fca0d	1368	}
TickTock	109:3e6f0e8fca0d	1369	#endif
TickTock	109:3e6f0e8fca0d	1370	}
TickTock	109:3e6f0e8fca0d	1371	#endif /* _FS_MINIMIZE <= 1 */
TickTock	109:3e6f0e8fca0d	1372
TickTock	109:3e6f0e8fca0d	1373
TickTock	109:3e6f0e8fca0d	1374
TickTock	109:3e6f0e8fca0d	1375
TickTock	109:3e6f0e8fca0d	1376	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1377	/* Follow a file path */
TickTock	109:3e6f0e8fca0d	1378	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1379
TickTock	109:3e6f0e8fca0d	1380	static
TickTock	109:3e6f0e8fca0d	1381	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
TickTock	109:3e6f0e8fca0d	1382	eDIR dj, / Directory object to return last directory and found object */
TickTock	109:3e6f0e8fca0d	1383	const XCHAR path / Full-path string to find a file or directory */
TickTock	109:3e6f0e8fca0d	1384	)
TickTock	109:3e6f0e8fca0d	1385	{
TickTock	109:3e6f0e8fca0d	1386	FRESULT res;
TickTock	109:3e6f0e8fca0d	1387	BYTE *dir, last;
TickTock	109:3e6f0e8fca0d	1388
TickTock	109:3e6f0e8fca0d	1389
TickTock	109:3e6f0e8fca0d	1390	while (!_USE_LFN && path == ' ') path++; / Skip leading spaces */
TickTock	109:3e6f0e8fca0d	1391	#if _FS_RPATH
TickTock	109:3e6f0e8fca0d	1392	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
TickTock	109:3e6f0e8fca0d	1393	path++; dj->sclust = 0; /* Strip it and start from the root dir */
TickTock	109:3e6f0e8fca0d	1394	} else { /* No heading saparator */
TickTock	109:3e6f0e8fca0d	1395	dj->sclust = dj->fs->cdir; /* Start from the current dir */
TickTock	109:3e6f0e8fca0d	1396	}
TickTock	109:3e6f0e8fca0d	1397	#else
TickTock	109:3e6f0e8fca0d	1398	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
TickTock	109:3e6f0e8fca0d	1399	path++;
TickTock	109:3e6f0e8fca0d	1400	dj->sclust = 0; /* Start from the root dir */
TickTock	109:3e6f0e8fca0d	1401	#endif
TickTock	109:3e6f0e8fca0d	1402
TickTock	109:3e6f0e8fca0d	1403	if ((UINT)path < ' ') { / Null path means the start directory itself */
TickTock	109:3e6f0e8fca0d	1404	res = dir_seek(dj, 0);
TickTock	109:3e6f0e8fca0d	1405	dj->dir = NULL;
TickTock	109:3e6f0e8fca0d	1406
TickTock	109:3e6f0e8fca0d	1407	} else { /* Follow path */
TickTock	109:3e6f0e8fca0d	1408	for (;;) {
TickTock	109:3e6f0e8fca0d	1409	res = create_name(dj, &path); /* Get a segment */
TickTock	109:3e6f0e8fca0d	1410	if (res != FR_OK) break;
TickTock	109:3e6f0e8fca0d	1411	res = dir_find(dj); /* Find it */
TickTock	109:3e6f0e8fca0d	1412	last = *(dj->fn+NS) & NS_LAST;
TickTock	109:3e6f0e8fca0d	1413	if (res != FR_OK) { /* Could not find the object */
TickTock	109:3e6f0e8fca0d	1414	if (res == FR_NO_FILE && !last)
TickTock	109:3e6f0e8fca0d	1415	res = FR_NO_PATH;
TickTock	109:3e6f0e8fca0d	1416	break;
TickTock	109:3e6f0e8fca0d	1417	}
TickTock	109:3e6f0e8fca0d	1418	if (last) break; /* Last segment match. Function completed. */
TickTock	109:3e6f0e8fca0d	1419	dir = dj->dir; /* There is next segment. Follow the sub directory */
TickTock	109:3e6f0e8fca0d	1420	if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
TickTock	109:3e6f0e8fca0d	1421	res = FR_NO_PATH; break;
TickTock	109:3e6f0e8fca0d	1422	}
TickTock	109:3e6f0e8fca0d	1423	dj->sclust = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) \| LD_WORD(dir+DIR_FstClusLO);
TickTock	109:3e6f0e8fca0d	1424	}
TickTock	109:3e6f0e8fca0d	1425	}
TickTock	109:3e6f0e8fca0d	1426
TickTock	109:3e6f0e8fca0d	1427	return res;
TickTock	109:3e6f0e8fca0d	1428	}
TickTock	109:3e6f0e8fca0d	1429
TickTock	109:3e6f0e8fca0d	1430
TickTock	109:3e6f0e8fca0d	1431
TickTock	109:3e6f0e8fca0d	1432
TickTock	109:3e6f0e8fca0d	1433	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1434	/* Load boot record and check if it is an FAT boot record */
TickTock	109:3e6f0e8fca0d	1435	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1436
TickTock	109:3e6f0e8fca0d	1437	static
TickTock	109:3e6f0e8fca0d	1438	BYTE check_fs ( /* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record, 3:Error */
TickTock	109:3e6f0e8fca0d	1439	FATFS fs, / File system object */
TickTock	109:3e6f0e8fca0d	1440	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
TickTock	109:3e6f0e8fca0d	1441	)
TickTock	109:3e6f0e8fca0d	1442	{
TickTock	109:3e6f0e8fca0d	1443	if (disk_read(fs->drive, fs->win, sect, 1) != RES_OK) /* Load boot record */
TickTock	109:3e6f0e8fca0d	1444	return 3;
TickTock	109:3e6f0e8fca0d	1445	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
TickTock	109:3e6f0e8fca0d	1446	return 2;
TickTock	109:3e6f0e8fca0d	1447
TickTock	109:3e6f0e8fca0d	1448	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
TickTock	109:3e6f0e8fca0d	1449	return 0;
TickTock	109:3e6f0e8fca0d	1450	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
TickTock	109:3e6f0e8fca0d	1451	return 0;
TickTock	109:3e6f0e8fca0d	1452
TickTock	109:3e6f0e8fca0d	1453	return 1;
TickTock	109:3e6f0e8fca0d	1454	}
TickTock	109:3e6f0e8fca0d	1455
TickTock	109:3e6f0e8fca0d	1456
TickTock	109:3e6f0e8fca0d	1457
TickTock	109:3e6f0e8fca0d	1458
TickTock	109:3e6f0e8fca0d	1459	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1460	/* Make sure that the file system is valid */
TickTock	109:3e6f0e8fca0d	1461	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1462
TickTock	109:3e6f0e8fca0d	1463
TickTock	109:3e6f0e8fca0d	1464	FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occured */
TickTock	109:3e6f0e8fca0d	1465	const XCHAR *path, / Pointer to pointer to the path name (drive number) */
TickTock	109:3e6f0e8fca0d	1466	FATFS *rfs, / Pointer to pointer to the found file system object */
TickTock	109:3e6f0e8fca0d	1467	BYTE chk_wp /* !=0: Check media write protection for write access */
TickTock	109:3e6f0e8fca0d	1468	)
TickTock	109:3e6f0e8fca0d	1469	{
TickTock	109:3e6f0e8fca0d	1470	BYTE fmt, *tbl;
TickTock	109:3e6f0e8fca0d	1471	UINT vol;
TickTock	109:3e6f0e8fca0d	1472	DSTATUS stat;
TickTock	109:3e6f0e8fca0d	1473	DWORD bsect, fsize, tsect, mclst;
TickTock	109:3e6f0e8fca0d	1474	const XCHAR p = path;
TickTock	109:3e6f0e8fca0d	1475	FATFS *fs;
TickTock	109:3e6f0e8fca0d	1476
TickTock	109:3e6f0e8fca0d	1477	/* Get logical drive number from the path name */
TickTock	109:3e6f0e8fca0d	1478	vol = p[0] - '0'; /* Is there a drive number? */
TickTock	109:3e6f0e8fca0d	1479	if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */
TickTock	109:3e6f0e8fca0d	1480	p += 2; path = p; / Return pointer to the path name */
TickTock	109:3e6f0e8fca0d	1481	} else { /* No drive number is given */
TickTock	109:3e6f0e8fca0d	1482	#if _FS_RPATH
TickTock	109:3e6f0e8fca0d	1483	vol = Drive; /* Use current drive */
TickTock	109:3e6f0e8fca0d	1484	#else
TickTock	109:3e6f0e8fca0d	1485	vol = 0; /* Use drive 0 */
TickTock	109:3e6f0e8fca0d	1486	#endif
TickTock	109:3e6f0e8fca0d	1487	}
TickTock	109:3e6f0e8fca0d	1488
TickTock	109:3e6f0e8fca0d	1489	/* Check if the logical drive is valid or not */
TickTock	109:3e6f0e8fca0d	1490	if (vol >= _DRIVES) /* Is the drive number valid? */
TickTock	109:3e6f0e8fca0d	1491	return FR_INVALID_DRIVE;
TickTock	109:3e6f0e8fca0d	1492	rfs = fs = FatFs[vol]; / Returen pointer to the corresponding file system object */
TickTock	109:3e6f0e8fca0d	1493	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
TickTock	109:3e6f0e8fca0d	1494
TickTock	109:3e6f0e8fca0d	1495	ENTER_FF(fs); /* Lock file system */
TickTock	109:3e6f0e8fca0d	1496
TickTock	109:3e6f0e8fca0d	1497	if (fs->fs_type) { /* If the logical drive has been mounted */
TickTock	109:3e6f0e8fca0d	1498	stat = disk_status(fs->drive);
TickTock	109:3e6f0e8fca0d	1499	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */
TickTock	109:3e6f0e8fca0d	1500	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	1501	if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */
TickTock	109:3e6f0e8fca0d	1502	return FR_WRITE_PROTECTED;
TickTock	109:3e6f0e8fca0d	1503	#endif
TickTock	109:3e6f0e8fca0d	1504	return FR_OK; /* The file system object is valid */
TickTock	109:3e6f0e8fca0d	1505	}
TickTock	109:3e6f0e8fca0d	1506	}
TickTock	109:3e6f0e8fca0d	1507
TickTock	109:3e6f0e8fca0d	1508	/* The logical drive must be mounted. Following code attempts to mount the volume */
TickTock	109:3e6f0e8fca0d	1509
TickTock	109:3e6f0e8fca0d	1510	fs->fs_type = 0; /* Clear the file system object */
TickTock	109:3e6f0e8fca0d	1511	fs->drive = (BYTE)LD2PD(vol); /* Bind the logical drive and a physical drive */
TickTock	109:3e6f0e8fca0d	1512	stat = disk_initialize(fs->drive); /* Initialize low level disk I/O layer */
TickTock	109:3e6f0e8fca0d	1513	if (stat & STA_NOINIT) /* Check if the drive is ready */
TickTock	109:3e6f0e8fca0d	1514	return FR_NOT_READY;
TickTock	109:3e6f0e8fca0d	1515	#if _MAX_SS != 512 /* Get disk sector size if needed */
TickTock	109:3e6f0e8fca0d	1516	if (disk_ioctl(fs->drive, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS)
TickTock	109:3e6f0e8fca0d	1517	return FR_NO_FILESYSTEM;
TickTock	109:3e6f0e8fca0d	1518	#endif
TickTock	109:3e6f0e8fca0d	1519	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	1520	if (chk_wp && (stat & STA_PROTECT)) /* Check disk write protection if needed */
TickTock	109:3e6f0e8fca0d	1521	return FR_WRITE_PROTECTED;
TickTock	109:3e6f0e8fca0d	1522	#endif
TickTock	109:3e6f0e8fca0d	1523	/* Search FAT partition on the drive */
TickTock	109:3e6f0e8fca0d	1524	fmt = check_fs(fs, bsect = 0); /* Check sector 0 as an SFD format */
TickTock	109:3e6f0e8fca0d	1525	if (fmt == 1) { /* Not an FAT boot record, it may be patitioned */
TickTock	109:3e6f0e8fca0d	1526	/* Check a partition listed in top of the partition table */
TickTock	109:3e6f0e8fca0d	1527	tbl = &fs->win[MBR_Table + LD2PT(vol) * 16]; /* Partition table */
TickTock	109:3e6f0e8fca0d	1528	if (tbl[4]) { /* Is the partition existing? */
TickTock	109:3e6f0e8fca0d	1529	bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
TickTock	109:3e6f0e8fca0d	1530	fmt = check_fs(fs, bsect); /* Check the partition */
TickTock	109:3e6f0e8fca0d	1531	}
TickTock	109:3e6f0e8fca0d	1532	}
TickTock	109:3e6f0e8fca0d	1533	if (fmt == 3) return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	1534	if (fmt \|\| LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* No valid FAT patition is found */
TickTock	109:3e6f0e8fca0d	1535	return FR_NO_FILESYSTEM;
TickTock	109:3e6f0e8fca0d	1536
TickTock	109:3e6f0e8fca0d	1537	/* Initialize the file system object */
TickTock	109:3e6f0e8fca0d	1538	fsize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */
TickTock	109:3e6f0e8fca0d	1539	if (!fsize) fsize = LD_DWORD(fs->win+BPB_FATSz32);
TickTock	109:3e6f0e8fca0d	1540	fs->sects_fat = fsize;
TickTock	109:3e6f0e8fca0d	1541	fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
TickTock	109:3e6f0e8fca0d	1542	fsize = fs->n_fats; / (Number of sectors in FAT area) */
TickTock	109:3e6f0e8fca0d	1543	fs->fatbase = bsect + LD_WORD(fs->win+BPB_RsvdSecCnt); /* FAT start sector (lba) */
TickTock	109:3e6f0e8fca0d	1544	fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
TickTock	109:3e6f0e8fca0d	1545	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Nmuber of root directory entries */
TickTock	109:3e6f0e8fca0d	1546	tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */
TickTock	109:3e6f0e8fca0d	1547	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
TickTock	109:3e6f0e8fca0d	1548	fs->max_clust = mclst = (tsect /* Last cluster# + 1 (Number of clusters + 2) */
TickTock	109:3e6f0e8fca0d	1549	- LD_WORD(fs->win+BPB_RsvdSecCnt) - fsize - fs->n_rootdir / (SS(fs)/32)
TickTock	109:3e6f0e8fca0d	1550	) / fs->csize + 2;
TickTock	109:3e6f0e8fca0d	1551
TickTock	109:3e6f0e8fca0d	1552	fmt = FS_FAT12; /* Determine the FAT sub type */
TickTock	109:3e6f0e8fca0d	1553	if (mclst >= 0xFF7) fmt = FS_FAT16; /* Number of clusters >= 0xFF5 */
TickTock	109:3e6f0e8fca0d	1554	if (mclst >= 0xFFF7) fmt = FS_FAT32; /* Number of clusters >= 0xFFF5 */
TickTock	109:3e6f0e8fca0d	1555
TickTock	109:3e6f0e8fca0d	1556	if (fmt == FS_FAT32)
TickTock	109:3e6f0e8fca0d	1557	fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
TickTock	109:3e6f0e8fca0d	1558	else
TickTock	109:3e6f0e8fca0d	1559	fs->dirbase = fs->fatbase + fsize; /* Root directory start sector (lba) */
TickTock	109:3e6f0e8fca0d	1560	fs->database = fs->fatbase + fsize + fs->n_rootdir / (SS(fs)/32); /* Data start sector (lba) */
TickTock	109:3e6f0e8fca0d	1561
TickTock	109:3e6f0e8fca0d	1562	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	1563	/* Initialize allocation information */
TickTock	109:3e6f0e8fca0d	1564	fs->free_clust = 0xFFFFFFFF;
TickTock	109:3e6f0e8fca0d	1565	fs->wflag = 0;
TickTock	109:3e6f0e8fca0d	1566	/* Get fsinfo if needed */
TickTock	109:3e6f0e8fca0d	1567	if (fmt == FS_FAT32) {
TickTock	109:3e6f0e8fca0d	1568	fs->fsi_flag = 0;
TickTock	109:3e6f0e8fca0d	1569	fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
TickTock	109:3e6f0e8fca0d	1570	if (disk_read(fs->drive, fs->win, fs->fsi_sector, 1) == RES_OK &&
TickTock	109:3e6f0e8fca0d	1571	LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
TickTock	109:3e6f0e8fca0d	1572	LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
TickTock	109:3e6f0e8fca0d	1573	LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
TickTock	109:3e6f0e8fca0d	1574	fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
TickTock	109:3e6f0e8fca0d	1575	fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
TickTock	109:3e6f0e8fca0d	1576	}
TickTock	109:3e6f0e8fca0d	1577	}
TickTock	109:3e6f0e8fca0d	1578	#endif
TickTock	109:3e6f0e8fca0d	1579	fs->fs_type = fmt; /* FAT sub-type */
TickTock	109:3e6f0e8fca0d	1580	fs->winsect = 0; /* Invalidate sector cache */
TickTock	109:3e6f0e8fca0d	1581	#if _FS_RPATH
TickTock	109:3e6f0e8fca0d	1582	fs->cdir = 0; /* Current directory (root dir) */
TickTock	109:3e6f0e8fca0d	1583	#endif
TickTock	109:3e6f0e8fca0d	1584	fs->id = ++Fsid; /* File system mount ID */
TickTock	109:3e6f0e8fca0d	1585
TickTock	109:3e6f0e8fca0d	1586	return FR_OK;
TickTock	109:3e6f0e8fca0d	1587	}
TickTock	109:3e6f0e8fca0d	1588
TickTock	109:3e6f0e8fca0d	1589
TickTock	109:3e6f0e8fca0d	1590
TickTock	109:3e6f0e8fca0d	1591
TickTock	109:3e6f0e8fca0d	1592	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1593	/* Check if the file/dir object is valid or not */
TickTock	109:3e6f0e8fca0d	1594	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1595
TickTock	109:3e6f0e8fca0d	1596	static
TickTock	109:3e6f0e8fca0d	1597	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
TickTock	109:3e6f0e8fca0d	1598	FATFS fs, / Pointer to the file system object */
TickTock	109:3e6f0e8fca0d	1599	WORD id /* Member id of the target object to be checked */
TickTock	109:3e6f0e8fca0d	1600	)
TickTock	109:3e6f0e8fca0d	1601	{
TickTock	109:3e6f0e8fca0d	1602	if (!fs \|\| !fs->fs_type \|\| fs->id != id)
TickTock	109:3e6f0e8fca0d	1603	return FR_INVALID_OBJECT;
TickTock	109:3e6f0e8fca0d	1604
TickTock	109:3e6f0e8fca0d	1605	ENTER_FF(fs); /* Lock file system */
TickTock	109:3e6f0e8fca0d	1606
TickTock	109:3e6f0e8fca0d	1607	if (disk_status(fs->drive) & STA_NOINIT)
TickTock	109:3e6f0e8fca0d	1608	return FR_NOT_READY;
TickTock	109:3e6f0e8fca0d	1609
TickTock	109:3e6f0e8fca0d	1610	return FR_OK;
TickTock	109:3e6f0e8fca0d	1611	}
TickTock	109:3e6f0e8fca0d	1612
TickTock	109:3e6f0e8fca0d	1613
TickTock	109:3e6f0e8fca0d	1614
TickTock	109:3e6f0e8fca0d	1615
TickTock	109:3e6f0e8fca0d	1616	/*--------------------------------------------------------------------------
TickTock	109:3e6f0e8fca0d	1617
TickTock	109:3e6f0e8fca0d	1618	Public Functions
TickTock	109:3e6f0e8fca0d	1619
TickTock	109:3e6f0e8fca0d	1620	--------------------------------------------------------------------------*/
TickTock	109:3e6f0e8fca0d	1621
TickTock	109:3e6f0e8fca0d	1622
TickTock	109:3e6f0e8fca0d	1623
TickTock	109:3e6f0e8fca0d	1624	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1625	/* Mount/Unmount a Locical Drive */
TickTock	109:3e6f0e8fca0d	1626	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1627
TickTock	109:3e6f0e8fca0d	1628	FRESULT f_mount (
TickTock	109:3e6f0e8fca0d	1629	BYTE vol, /* Logical drive number to be mounted/unmounted */
TickTock	109:3e6f0e8fca0d	1630	FATFS fs / Pointer to new file system object (NULL for unmount)*/
TickTock	109:3e6f0e8fca0d	1631	)
TickTock	109:3e6f0e8fca0d	1632	{
TickTock	109:3e6f0e8fca0d	1633	FATFS *rfs;
TickTock	109:3e6f0e8fca0d	1634
TickTock	109:3e6f0e8fca0d	1635
TickTock	109:3e6f0e8fca0d	1636	if (vol >= _DRIVES) /* Check if the drive number is valid */
TickTock	109:3e6f0e8fca0d	1637	return FR_INVALID_DRIVE;
TickTock	109:3e6f0e8fca0d	1638	rfs = FatFs[vol]; /* Get current fs object */
TickTock	109:3e6f0e8fca0d	1639
TickTock	109:3e6f0e8fca0d	1640	if (rfs) {
TickTock	109:3e6f0e8fca0d	1641	#if _FS_REENTRANT /* Discard sync object of the current volume */
TickTock	109:3e6f0e8fca0d	1642	if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	1643	#endif
TickTock	109:3e6f0e8fca0d	1644	rfs->fs_type = 0; /* Clear old fs object */
TickTock	109:3e6f0e8fca0d	1645	}
TickTock	109:3e6f0e8fca0d	1646
TickTock	109:3e6f0e8fca0d	1647	if (fs) {
TickTock	109:3e6f0e8fca0d	1648	fs->fs_type = 0; /* Clear new fs object */
TickTock	109:3e6f0e8fca0d	1649	#if _FS_REENTRANT /* Create sync object for the new volume */
TickTock	109:3e6f0e8fca0d	1650	if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	1651	#endif
TickTock	109:3e6f0e8fca0d	1652	}
TickTock	109:3e6f0e8fca0d	1653	FatFs[vol] = fs; /* Register new fs object */
TickTock	109:3e6f0e8fca0d	1654
TickTock	109:3e6f0e8fca0d	1655	return FR_OK;
TickTock	109:3e6f0e8fca0d	1656	}
TickTock	109:3e6f0e8fca0d	1657
TickTock	109:3e6f0e8fca0d	1658
TickTock	109:3e6f0e8fca0d	1659
TickTock	109:3e6f0e8fca0d	1660
TickTock	109:3e6f0e8fca0d	1661	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1662	/* Open or Create a File */
TickTock	109:3e6f0e8fca0d	1663	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1664
TickTock	109:3e6f0e8fca0d	1665	FRESULT f_open (
TickTock	109:3e6f0e8fca0d	1666	FIL fp, / Pointer to the blank file object */
TickTock	109:3e6f0e8fca0d	1667	const XCHAR path, / Pointer to the file name */
TickTock	109:3e6f0e8fca0d	1668	BYTE mode /* Access mode and file open mode flags */
TickTock	109:3e6f0e8fca0d	1669	)
TickTock	109:3e6f0e8fca0d	1670	{
TickTock	109:3e6f0e8fca0d	1671	FRESULT res;
TickTock	109:3e6f0e8fca0d	1672	eDIR dj;
TickTock	109:3e6f0e8fca0d	1673	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	1674	BYTE *dir;
TickTock	109:3e6f0e8fca0d	1675
TickTock	109:3e6f0e8fca0d	1676
TickTock	109:3e6f0e8fca0d	1677	fp->fs = NULL; /* Clear file object */
TickTock	109:3e6f0e8fca0d	1678	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	1679	mode &= (FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW);
TickTock	109:3e6f0e8fca0d	1680	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & (FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)));
TickTock	109:3e6f0e8fca0d	1681	#else
TickTock	109:3e6f0e8fca0d	1682	mode &= FA_READ;
TickTock	109:3e6f0e8fca0d	1683	res = chk_mounted(&path, &dj.fs, 0);
TickTock	109:3e6f0e8fca0d	1684	#endif
TickTock	109:3e6f0e8fca0d	1685	if (res != FR_OK) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	1686	INITBUF(dj, sfn, lfn);
TickTock	109:3e6f0e8fca0d	1687	res = follow_path(&dj, path); /* Follow the file path */
TickTock	109:3e6f0e8fca0d	1688
TickTock	109:3e6f0e8fca0d	1689	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	1690	/* Create or Open a file */
TickTock	109:3e6f0e8fca0d	1691	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
TickTock	109:3e6f0e8fca0d	1692	DWORD ps, cl;
TickTock	109:3e6f0e8fca0d	1693
TickTock	109:3e6f0e8fca0d	1694	if (res != FR_OK) { /* No file, create new */
TickTock	109:3e6f0e8fca0d	1695	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
TickTock	109:3e6f0e8fca0d	1696	res = dir_register(&dj);
TickTock	109:3e6f0e8fca0d	1697	if (res != FR_OK) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	1698	mode \|= FA_CREATE_ALWAYS;
TickTock	109:3e6f0e8fca0d	1699	dir = dj.dir; /* Created entry (SFN entry) */
TickTock	109:3e6f0e8fca0d	1700	}
TickTock	109:3e6f0e8fca0d	1701	else { /* Any object is already existing */
TickTock	109:3e6f0e8fca0d	1702	if (mode & FA_CREATE_NEW) /* Cannot create new */
TickTock	109:3e6f0e8fca0d	1703	LEAVE_FF(dj.fs, FR_EXIST);
TickTock	109:3e6f0e8fca0d	1704	dir = dj.dir;
TickTock	109:3e6f0e8fca0d	1705	if (!dir \|\| (dir[DIR_Attr] & (AM_RDO \| AM_DIR))) /* Cannot overwrite it (R/O or DIR) */
TickTock	109:3e6f0e8fca0d	1706	LEAVE_FF(dj.fs, FR_DENIED);
TickTock	109:3e6f0e8fca0d	1707	if (mode & FA_CREATE_ALWAYS) { /* Resize it to zero on over write mode */
TickTock	109:3e6f0e8fca0d	1708	cl = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) \| LD_WORD(dir+DIR_FstClusLO); /* Get start cluster */
TickTock	109:3e6f0e8fca0d	1709	ST_WORD(dir+DIR_FstClusHI, 0); /* cluster = 0 */
TickTock	109:3e6f0e8fca0d	1710	ST_WORD(dir+DIR_FstClusLO, 0);
TickTock	109:3e6f0e8fca0d	1711	ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
TickTock	109:3e6f0e8fca0d	1712	dj.fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	1713	ps = dj.fs->winsect; /* Remove the cluster chain */
TickTock	109:3e6f0e8fca0d	1714	if (cl) {
TickTock	109:3e6f0e8fca0d	1715	res = remove_chain(dj.fs, cl);
TickTock	109:3e6f0e8fca0d	1716	if (res) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	1717	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
TickTock	109:3e6f0e8fca0d	1718	}
TickTock	109:3e6f0e8fca0d	1719	res = move_window(dj.fs, ps);
TickTock	109:3e6f0e8fca0d	1720	if (res != FR_OK) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	1721	}
TickTock	109:3e6f0e8fca0d	1722	}
TickTock	109:3e6f0e8fca0d	1723	if (mode & FA_CREATE_ALWAYS) {
TickTock	109:3e6f0e8fca0d	1724	dir[DIR_Attr] = 0; /* Reset attribute */
TickTock	109:3e6f0e8fca0d	1725	ps = get_fattime();
TickTock	109:3e6f0e8fca0d	1726	ST_DWORD(dir+DIR_CrtTime, ps); /* Created time */
TickTock	109:3e6f0e8fca0d	1727	dj.fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	1728	mode \|= FA__WRITTEN; /* Set file changed flag */
TickTock	109:3e6f0e8fca0d	1729	}
TickTock	109:3e6f0e8fca0d	1730	}
TickTock	109:3e6f0e8fca0d	1731	/* Open an existing file */
TickTock	109:3e6f0e8fca0d	1732	else {
TickTock	109:3e6f0e8fca0d	1733	#endif /* !_FS_READONLY */
TickTock	109:3e6f0e8fca0d	1734	if (res != FR_OK) LEAVE_FF(dj.fs, res); /* Follow failed */
TickTock	109:3e6f0e8fca0d	1735	dir = dj.dir;
TickTock	109:3e6f0e8fca0d	1736	if (!dir \|\| (dir[DIR_Attr] & AM_DIR)) /* It is a directory */
TickTock	109:3e6f0e8fca0d	1737	LEAVE_FF(dj.fs, FR_NO_FILE);
TickTock	109:3e6f0e8fca0d	1738	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	1739	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
TickTock	109:3e6f0e8fca0d	1740	LEAVE_FF(dj.fs, FR_DENIED);
TickTock	109:3e6f0e8fca0d	1741	}
TickTock	109:3e6f0e8fca0d	1742	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
TickTock	109:3e6f0e8fca0d	1743	fp->dir_ptr = dj.dir;
TickTock	109:3e6f0e8fca0d	1744	#endif
TickTock	109:3e6f0e8fca0d	1745	fp->flag = mode; /* File access mode */
TickTock	109:3e6f0e8fca0d	1746	fp->org_clust = /* File start cluster */
TickTock	109:3e6f0e8fca0d	1747	((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) \| LD_WORD(dir+DIR_FstClusLO);
TickTock	109:3e6f0e8fca0d	1748	fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
TickTock	109:3e6f0e8fca0d	1749	fp->fptr = 0; fp->csect = 255; /* File pointer */
TickTock	109:3e6f0e8fca0d	1750	fp->dsect = 0;
TickTock	109:3e6f0e8fca0d	1751	fp->fs = dj.fs; fp->id = dj.fs->id; /* Owner file system object of the file */
TickTock	109:3e6f0e8fca0d	1752
TickTock	109:3e6f0e8fca0d	1753	LEAVE_FF(dj.fs, FR_OK);
TickTock	109:3e6f0e8fca0d	1754	}
TickTock	109:3e6f0e8fca0d	1755
TickTock	109:3e6f0e8fca0d	1756
TickTock	109:3e6f0e8fca0d	1757
TickTock	109:3e6f0e8fca0d	1758
TickTock	109:3e6f0e8fca0d	1759	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1760	/* Read File */
TickTock	109:3e6f0e8fca0d	1761	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1762
TickTock	109:3e6f0e8fca0d	1763	FRESULT f_read (
TickTock	109:3e6f0e8fca0d	1764	FIL fp, / Pointer to the file object */
TickTock	109:3e6f0e8fca0d	1765	void buff, / Pointer to data buffer */
TickTock	109:3e6f0e8fca0d	1766	UINT btr, /* Number of bytes to read */
TickTock	109:3e6f0e8fca0d	1767	UINT br / Pointer to number of bytes read */
TickTock	109:3e6f0e8fca0d	1768	)
TickTock	109:3e6f0e8fca0d	1769	{
TickTock	109:3e6f0e8fca0d	1770	FRESULT res;
TickTock	109:3e6f0e8fca0d	1771	DWORD clst, sect, remain;
TickTock	109:3e6f0e8fca0d	1772	UINT rcnt, cc;
TickTock	109:3e6f0e8fca0d	1773	BYTE rbuff = (BYTE )buff;
TickTock	109:3e6f0e8fca0d	1774
TickTock	109:3e6f0e8fca0d	1775
TickTock	109:3e6f0e8fca0d	1776	br = 0; / Initialize bytes read */
TickTock	109:3e6f0e8fca0d	1777
TickTock	109:3e6f0e8fca0d	1778	res = validate(fp->fs, fp->id); /* Check validity of the object */
TickTock	109:3e6f0e8fca0d	1779	if (res != FR_OK) LEAVE_FF(fp->fs, res);
TickTock	109:3e6f0e8fca0d	1780	if (fp->flag & FA__ERROR) /* Check abort flag */
TickTock	109:3e6f0e8fca0d	1781	LEAVE_FF(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	1782	if (!(fp->flag & FA_READ)) /* Check access mode */
TickTock	109:3e6f0e8fca0d	1783	LEAVE_FF(fp->fs, FR_DENIED);
TickTock	109:3e6f0e8fca0d	1784	remain = fp->fsize - fp->fptr;
TickTock	109:3e6f0e8fca0d	1785	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
TickTock	109:3e6f0e8fca0d	1786
TickTock	109:3e6f0e8fca0d	1787	for ( ; btr; /* Repeat until all data transferred */
TickTock	109:3e6f0e8fca0d	1788	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
TickTock	109:3e6f0e8fca0d	1789	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
TickTock	109:3e6f0e8fca0d	1790	if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */
TickTock	109:3e6f0e8fca0d	1791	clst = (fp->fptr == 0) ? /* On the top of the file? */
TickTock	109:3e6f0e8fca0d	1792	fp->org_clust : get_fat(fp->fs, fp->curr_clust);
TickTock	109:3e6f0e8fca0d	1793	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	1794	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1795	fp->curr_clust = clst; /* Update current cluster */
TickTock	109:3e6f0e8fca0d	1796	fp->csect = 0; /* Reset sector offset in the cluster */
TickTock	109:3e6f0e8fca0d	1797	}
TickTock	109:3e6f0e8fca0d	1798	sect = clust2sect(fp->fs, fp->curr_clust); /* Get current sector */
TickTock	109:3e6f0e8fca0d	1799	if (!sect) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	1800	sect += fp->csect;
TickTock	109:3e6f0e8fca0d	1801	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
TickTock	109:3e6f0e8fca0d	1802	if (cc) { /* Read maximum contiguous sectors directly */
TickTock	109:3e6f0e8fca0d	1803	if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */
TickTock	109:3e6f0e8fca0d	1804	cc = fp->fs->csize - fp->csect;
TickTock	109:3e6f0e8fca0d	1805	if (disk_read(fp->fs->drive, rbuff, sect, (BYTE)cc) != RES_OK)
TickTock	109:3e6f0e8fca0d	1806	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1807	#if !_FS_READONLY && _FS_MINIMIZE <= 2
TickTock	109:3e6f0e8fca0d	1808	#if _FS_TINY
TickTock	109:3e6f0e8fca0d	1809	if (fp->fs->wflag && fp->fs->winsect - sect < cc) /* Replace one of the read sectors with cached data if it contains a dirty sector */
TickTock	109:3e6f0e8fca0d	1810	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
TickTock	109:3e6f0e8fca0d	1811	#else
TickTock	109:3e6f0e8fca0d	1812	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc) /* Replace one of the read sectors with cached data if it contains a dirty sector */
TickTock	109:3e6f0e8fca0d	1813	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
TickTock	109:3e6f0e8fca0d	1814	#endif
TickTock	109:3e6f0e8fca0d	1815	#endif
TickTock	109:3e6f0e8fca0d	1816	fp->csect += (BYTE)cc; /* Next sector address in the cluster */
TickTock	109:3e6f0e8fca0d	1817	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
TickTock	109:3e6f0e8fca0d	1818	continue;
TickTock	109:3e6f0e8fca0d	1819	}
TickTock	109:3e6f0e8fca0d	1820	#if !_FS_TINY
TickTock	109:3e6f0e8fca0d	1821	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	1822	if (fp->flag & FA__DIRTY) { /* Write sector I/O buffer if needed */
TickTock	109:3e6f0e8fca0d	1823	if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	1824	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1825	fp->flag &= ~FA__DIRTY;
TickTock	109:3e6f0e8fca0d	1826	}
TickTock	109:3e6f0e8fca0d	1827	#endif
TickTock	109:3e6f0e8fca0d	1828	if (fp->dsect != sect) { /* Fill sector buffer with file data */
TickTock	109:3e6f0e8fca0d	1829	if (disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	1830	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1831	}
TickTock	109:3e6f0e8fca0d	1832	#endif
TickTock	109:3e6f0e8fca0d	1833	fp->dsect = sect;
TickTock	109:3e6f0e8fca0d	1834	fp->csect++; /* Next sector address in the cluster */
TickTock	109:3e6f0e8fca0d	1835	}
TickTock	109:3e6f0e8fca0d	1836	rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
TickTock	109:3e6f0e8fca0d	1837	if (rcnt > btr) rcnt = btr;
TickTock	109:3e6f0e8fca0d	1838	#if _FS_TINY
TickTock	109:3e6f0e8fca0d	1839	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
TickTock	109:3e6f0e8fca0d	1840	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1841	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
TickTock	109:3e6f0e8fca0d	1842	#else
TickTock	109:3e6f0e8fca0d	1843	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
TickTock	109:3e6f0e8fca0d	1844	#endif
TickTock	109:3e6f0e8fca0d	1845	}
TickTock	109:3e6f0e8fca0d	1846
TickTock	109:3e6f0e8fca0d	1847	LEAVE_FF(fp->fs, FR_OK);
TickTock	109:3e6f0e8fca0d	1848	}
TickTock	109:3e6f0e8fca0d	1849
TickTock	109:3e6f0e8fca0d	1850
TickTock	109:3e6f0e8fca0d	1851
TickTock	109:3e6f0e8fca0d	1852
TickTock	109:3e6f0e8fca0d	1853	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	1854	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1855	/* Write File */
TickTock	109:3e6f0e8fca0d	1856	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1857
TickTock	109:3e6f0e8fca0d	1858	FRESULT f_write (
TickTock	109:3e6f0e8fca0d	1859	FIL fp, / Pointer to the file object */
TickTock	109:3e6f0e8fca0d	1860	const void buff, / Pointer to the data to be written */
TickTock	109:3e6f0e8fca0d	1861	UINT btw, /* Number of bytes to write */
TickTock	109:3e6f0e8fca0d	1862	UINT bw / Pointer to number of bytes written */
TickTock	109:3e6f0e8fca0d	1863	)
TickTock	109:3e6f0e8fca0d	1864	{
TickTock	109:3e6f0e8fca0d	1865	FRESULT res;
TickTock	109:3e6f0e8fca0d	1866	DWORD clst, sect;
TickTock	109:3e6f0e8fca0d	1867	UINT wcnt, cc;
TickTock	109:3e6f0e8fca0d	1868	const BYTE wbuff = (const BYTE )buff;
TickTock	109:3e6f0e8fca0d	1869
TickTock	109:3e6f0e8fca0d	1870
TickTock	109:3e6f0e8fca0d	1871	bw = 0; / Initialize bytes written */
TickTock	109:3e6f0e8fca0d	1872
TickTock	109:3e6f0e8fca0d	1873	res = validate(fp->fs, fp->id); /* Check validity of the object */
TickTock	109:3e6f0e8fca0d	1874	if (res != FR_OK) LEAVE_FF(fp->fs, res);
TickTock	109:3e6f0e8fca0d	1875	if (fp->flag & FA__ERROR) /* Check abort flag */
TickTock	109:3e6f0e8fca0d	1876	LEAVE_FF(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	1877	if (!(fp->flag & FA_WRITE)) /* Check access mode */
TickTock	109:3e6f0e8fca0d	1878	LEAVE_FF(fp->fs, FR_DENIED);
TickTock	109:3e6f0e8fca0d	1879	if (fp->fsize + btw < fp->fsize) btw = 0; /* File size cannot reach 4GB */
TickTock	109:3e6f0e8fca0d	1880
TickTock	109:3e6f0e8fca0d	1881	for ( ; btw; /* Repeat until all data transferred */
TickTock	109:3e6f0e8fca0d	1882	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
TickTock	109:3e6f0e8fca0d	1883	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
TickTock	109:3e6f0e8fca0d	1884	if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */
TickTock	109:3e6f0e8fca0d	1885	if (fp->fptr == 0) { /* On the top of the file? */
TickTock	109:3e6f0e8fca0d	1886	clst = fp->org_clust; /* Follow from the origin */
TickTock	109:3e6f0e8fca0d	1887	if (clst == 0) /* When there is no cluster chain, */
TickTock	109:3e6f0e8fca0d	1888	fp->org_clust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
TickTock	109:3e6f0e8fca0d	1889	} else { /* Middle or end of the file */
TickTock	109:3e6f0e8fca0d	1890	clst = create_chain(fp->fs, fp->curr_clust); /* Follow or streach cluster chain */
TickTock	109:3e6f0e8fca0d	1891	}
TickTock	109:3e6f0e8fca0d	1892	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
TickTock	109:3e6f0e8fca0d	1893	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	1894	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1895	fp->curr_clust = clst; /* Update current cluster */
TickTock	109:3e6f0e8fca0d	1896	fp->csect = 0; /* Reset sector address in the cluster */
TickTock	109:3e6f0e8fca0d	1897	}
TickTock	109:3e6f0e8fca0d	1898	#if _FS_TINY
TickTock	109:3e6f0e8fca0d	1899	if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write back data buffer prior to following direct transfer */
TickTock	109:3e6f0e8fca0d	1900	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1901	#else
TickTock	109:3e6f0e8fca0d	1902	if (fp->flag & FA__DIRTY) { /* Write back data buffer prior to following direct transfer */
TickTock	109:3e6f0e8fca0d	1903	if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	1904	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1905	fp->flag &= ~FA__DIRTY;
TickTock	109:3e6f0e8fca0d	1906	}
TickTock	109:3e6f0e8fca0d	1907	#endif
TickTock	109:3e6f0e8fca0d	1908	sect = clust2sect(fp->fs, fp->curr_clust); /* Get current sector */
TickTock	109:3e6f0e8fca0d	1909	if (!sect) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	1910	sect += fp->csect;
TickTock	109:3e6f0e8fca0d	1911	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
TickTock	109:3e6f0e8fca0d	1912	if (cc) { /* Write maximum contiguous sectors directly */
TickTock	109:3e6f0e8fca0d	1913	if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */
TickTock	109:3e6f0e8fca0d	1914	cc = fp->fs->csize - fp->csect;
TickTock	109:3e6f0e8fca0d	1915	if (disk_write(fp->fs->drive, wbuff, sect, (BYTE)cc) != RES_OK)
TickTock	109:3e6f0e8fca0d	1916	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1917	#if _FS_TINY
TickTock	109:3e6f0e8fca0d	1918	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets dirty by the direct write */
TickTock	109:3e6f0e8fca0d	1919	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
TickTock	109:3e6f0e8fca0d	1920	fp->fs->wflag = 0;
TickTock	109:3e6f0e8fca0d	1921	}
TickTock	109:3e6f0e8fca0d	1922	#else
TickTock	109:3e6f0e8fca0d	1923	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets dirty by the direct write */
TickTock	109:3e6f0e8fca0d	1924	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
TickTock	109:3e6f0e8fca0d	1925	fp->flag &= ~FA__DIRTY;
TickTock	109:3e6f0e8fca0d	1926	}
TickTock	109:3e6f0e8fca0d	1927	#endif
TickTock	109:3e6f0e8fca0d	1928	fp->csect += (BYTE)cc; /* Next sector address in the cluster */
TickTock	109:3e6f0e8fca0d	1929	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
TickTock	109:3e6f0e8fca0d	1930	continue;
TickTock	109:3e6f0e8fca0d	1931	}
TickTock	109:3e6f0e8fca0d	1932	#if _FS_TINY
TickTock	109:3e6f0e8fca0d	1933	if (fp->fptr >= fp->fsize) { /* Avoid silly buffer filling at growing edge */
TickTock	109:3e6f0e8fca0d	1934	if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1935	fp->fs->winsect = sect;
TickTock	109:3e6f0e8fca0d	1936	}
TickTock	109:3e6f0e8fca0d	1937	#else
TickTock	109:3e6f0e8fca0d	1938	if (fp->dsect != sect) { /* Fill sector buffer with file data */
TickTock	109:3e6f0e8fca0d	1939	if (fp->fptr < fp->fsize &&
TickTock	109:3e6f0e8fca0d	1940	disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	1941	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1942	}
TickTock	109:3e6f0e8fca0d	1943	#endif
TickTock	109:3e6f0e8fca0d	1944	fp->dsect = sect;
TickTock	109:3e6f0e8fca0d	1945	fp->csect++; /* Next sector address in the cluster */
TickTock	109:3e6f0e8fca0d	1946	}
TickTock	109:3e6f0e8fca0d	1947	wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Put partial sector into file I/O buffer */
TickTock	109:3e6f0e8fca0d	1948	if (wcnt > btw) wcnt = btw;
TickTock	109:3e6f0e8fca0d	1949	#if _FS_TINY
TickTock	109:3e6f0e8fca0d	1950	if (move_window(fp->fs, fp->dsect)) /* Move sector window */
TickTock	109:3e6f0e8fca0d	1951	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1952	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
TickTock	109:3e6f0e8fca0d	1953	fp->fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	1954	#else
TickTock	109:3e6f0e8fca0d	1955	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
TickTock	109:3e6f0e8fca0d	1956	fp->flag \|= FA__DIRTY;
TickTock	109:3e6f0e8fca0d	1957	#endif
TickTock	109:3e6f0e8fca0d	1958	}
TickTock	109:3e6f0e8fca0d	1959
TickTock	109:3e6f0e8fca0d	1960	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
TickTock	109:3e6f0e8fca0d	1961	fp->flag \|= FA__WRITTEN; /* Set file changed flag */
TickTock	109:3e6f0e8fca0d	1962
TickTock	109:3e6f0e8fca0d	1963	LEAVE_FF(fp->fs, FR_OK);
TickTock	109:3e6f0e8fca0d	1964	}
TickTock	109:3e6f0e8fca0d	1965
TickTock	109:3e6f0e8fca0d	1966
TickTock	109:3e6f0e8fca0d	1967
TickTock	109:3e6f0e8fca0d	1968
TickTock	109:3e6f0e8fca0d	1969	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1970	/* Synchronize the File Object */
TickTock	109:3e6f0e8fca0d	1971	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	1972
TickTock	109:3e6f0e8fca0d	1973	FRESULT f_sync (
TickTock	109:3e6f0e8fca0d	1974	FIL fp / Pointer to the file object */
TickTock	109:3e6f0e8fca0d	1975	)
TickTock	109:3e6f0e8fca0d	1976	{
TickTock	109:3e6f0e8fca0d	1977	FRESULT res;
TickTock	109:3e6f0e8fca0d	1978	DWORD tim;
TickTock	109:3e6f0e8fca0d	1979	BYTE *dir;
TickTock	109:3e6f0e8fca0d	1980
TickTock	109:3e6f0e8fca0d	1981
TickTock	109:3e6f0e8fca0d	1982	res = validate(fp->fs, fp->id); /* Check validity of the object */
TickTock	109:3e6f0e8fca0d	1983	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	1984	if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
TickTock	109:3e6f0e8fca0d	1985	#if !_FS_TINY /* Write-back dirty buffer */
TickTock	109:3e6f0e8fca0d	1986	if (fp->flag & FA__DIRTY) {
TickTock	109:3e6f0e8fca0d	1987	if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	1988	LEAVE_FF(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	1989	fp->flag &= ~FA__DIRTY;
TickTock	109:3e6f0e8fca0d	1990	}
TickTock	109:3e6f0e8fca0d	1991	#endif
TickTock	109:3e6f0e8fca0d	1992	/* Update the directory entry */
TickTock	109:3e6f0e8fca0d	1993	res = move_window(fp->fs, fp->dir_sect);
TickTock	109:3e6f0e8fca0d	1994	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	1995	dir = fp->dir_ptr;
TickTock	109:3e6f0e8fca0d	1996	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
TickTock	109:3e6f0e8fca0d	1997	ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */
TickTock	109:3e6f0e8fca0d	1998	ST_WORD(dir+DIR_FstClusLO, fp->org_clust); /* Update start cluster */
TickTock	109:3e6f0e8fca0d	1999	ST_WORD(dir+DIR_FstClusHI, fp->org_clust >> 16);
TickTock	109:3e6f0e8fca0d	2000	tim = get_fattime(); /* Updated time */
TickTock	109:3e6f0e8fca0d	2001	ST_DWORD(dir+DIR_WrtTime, tim);
TickTock	109:3e6f0e8fca0d	2002	fp->flag &= ~FA__WRITTEN;
TickTock	109:3e6f0e8fca0d	2003	fp->fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	2004	res = sync(fp->fs);
TickTock	109:3e6f0e8fca0d	2005	}
TickTock	109:3e6f0e8fca0d	2006	}
TickTock	109:3e6f0e8fca0d	2007	}
TickTock	109:3e6f0e8fca0d	2008
TickTock	109:3e6f0e8fca0d	2009	LEAVE_FF(fp->fs, res);
TickTock	109:3e6f0e8fca0d	2010	}
TickTock	109:3e6f0e8fca0d	2011
TickTock	109:3e6f0e8fca0d	2012	#endif /* !_FS_READONLY */
TickTock	109:3e6f0e8fca0d	2013
TickTock	109:3e6f0e8fca0d	2014
TickTock	109:3e6f0e8fca0d	2015
TickTock	109:3e6f0e8fca0d	2016
TickTock	109:3e6f0e8fca0d	2017	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2018	/* Close File */
TickTock	109:3e6f0e8fca0d	2019	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2020
TickTock	109:3e6f0e8fca0d	2021	FRESULT f_close (
TickTock	109:3e6f0e8fca0d	2022	FIL fp / Pointer to the file object to be closed */
TickTock	109:3e6f0e8fca0d	2023	)
TickTock	109:3e6f0e8fca0d	2024	{
TickTock	109:3e6f0e8fca0d	2025	FRESULT res;
TickTock	109:3e6f0e8fca0d	2026
TickTock	109:3e6f0e8fca0d	2027
TickTock	109:3e6f0e8fca0d	2028	#if _FS_READONLY
TickTock	109:3e6f0e8fca0d	2029	res = validate(fp->fs, fp->id);
TickTock	109:3e6f0e8fca0d	2030	if (res == FR_OK) fp->fs = NULL;
TickTock	109:3e6f0e8fca0d	2031	LEAVE_FF(fp->fs, res);
TickTock	109:3e6f0e8fca0d	2032	#else
TickTock	109:3e6f0e8fca0d	2033	res = f_sync(fp);
TickTock	109:3e6f0e8fca0d	2034	if (res == FR_OK) fp->fs = NULL;
TickTock	109:3e6f0e8fca0d	2035	return res;
TickTock	109:3e6f0e8fca0d	2036	#endif
TickTock	109:3e6f0e8fca0d	2037	}
TickTock	109:3e6f0e8fca0d	2038
TickTock	109:3e6f0e8fca0d	2039
TickTock	109:3e6f0e8fca0d	2040
TickTock	109:3e6f0e8fca0d	2041
TickTock	109:3e6f0e8fca0d	2042	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2043	/* Change Current Drive/Directory */
TickTock	109:3e6f0e8fca0d	2044	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2045
TickTock	109:3e6f0e8fca0d	2046	#if _FS_RPATH
TickTock	109:3e6f0e8fca0d	2047
TickTock	109:3e6f0e8fca0d	2048	FRESULT f_chdrive (
TickTock	109:3e6f0e8fca0d	2049	BYTE drv /* Drive number */
TickTock	109:3e6f0e8fca0d	2050	)
TickTock	109:3e6f0e8fca0d	2051	{
TickTock	109:3e6f0e8fca0d	2052	if (drv >= _DRIVES) return FR_INVALID_DRIVE;
TickTock	109:3e6f0e8fca0d	2053
TickTock	109:3e6f0e8fca0d	2054	Drive = drv;
TickTock	109:3e6f0e8fca0d	2055
TickTock	109:3e6f0e8fca0d	2056	return FR_OK;
TickTock	109:3e6f0e8fca0d	2057	}
TickTock	109:3e6f0e8fca0d	2058
TickTock	109:3e6f0e8fca0d	2059
TickTock	109:3e6f0e8fca0d	2060
TickTock	109:3e6f0e8fca0d	2061
TickTock	109:3e6f0e8fca0d	2062	FRESULT f_chdir (
TickTock	109:3e6f0e8fca0d	2063	const XCHAR path / Pointer to the directory path */
TickTock	109:3e6f0e8fca0d	2064	)
TickTock	109:3e6f0e8fca0d	2065	{
TickTock	109:3e6f0e8fca0d	2066	FRESULT res;
TickTock	109:3e6f0e8fca0d	2067	DIR dj;
TickTock	109:3e6f0e8fca0d	2068	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	2069	BYTE *dir;
TickTock	109:3e6f0e8fca0d	2070
TickTock	109:3e6f0e8fca0d	2071
TickTock	109:3e6f0e8fca0d	2072	res = chk_mounted(&path, &dj.fs, 0);
TickTock	109:3e6f0e8fca0d	2073	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2074	INITBUF(dj, sfn, lfn);
TickTock	109:3e6f0e8fca0d	2075	res = follow_path(&dj, path); /* Follow the file path */
TickTock	109:3e6f0e8fca0d	2076	if (res == FR_OK) { /* Follow completed */
TickTock	109:3e6f0e8fca0d	2077	dir = dj.dir; /* Pointer to the entry */
TickTock	109:3e6f0e8fca0d	2078	if (!dir) {
TickTock	109:3e6f0e8fca0d	2079	dj.fs->cdir = 0; /* No entry (root dir) */
TickTock	109:3e6f0e8fca0d	2080	} else {
TickTock	109:3e6f0e8fca0d	2081	if (dir[DIR_Attr] & AM_DIR) /* Reached to the dir */
TickTock	109:3e6f0e8fca0d	2082	dj.fs->cdir = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) \| LD_WORD(dir+DIR_FstClusLO);
TickTock	109:3e6f0e8fca0d	2083	else
TickTock	109:3e6f0e8fca0d	2084	res = FR_NO_PATH; /* Could not reach the dir (it is a file) */
TickTock	109:3e6f0e8fca0d	2085	}
TickTock	109:3e6f0e8fca0d	2086	}
TickTock	109:3e6f0e8fca0d	2087	if (res == FR_NO_FILE) res = FR_NO_PATH;
TickTock	109:3e6f0e8fca0d	2088	}
TickTock	109:3e6f0e8fca0d	2089
TickTock	109:3e6f0e8fca0d	2090	LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2091	}
TickTock	109:3e6f0e8fca0d	2092
TickTock	109:3e6f0e8fca0d	2093	#endif
TickTock	109:3e6f0e8fca0d	2094
TickTock	109:3e6f0e8fca0d	2095
TickTock	109:3e6f0e8fca0d	2096
TickTock	109:3e6f0e8fca0d	2097	#if _FS_MINIMIZE <= 2
TickTock	109:3e6f0e8fca0d	2098	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2099	/* Seek File R/W Pointer */
TickTock	109:3e6f0e8fca0d	2100	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2101
TickTock	109:3e6f0e8fca0d	2102	FRESULT f_lseek (
TickTock	109:3e6f0e8fca0d	2103	FIL fp, / Pointer to the file object */
TickTock	109:3e6f0e8fca0d	2104	DWORD ofs /* File pointer from top of file */
TickTock	109:3e6f0e8fca0d	2105	)
TickTock	109:3e6f0e8fca0d	2106	{
TickTock	109:3e6f0e8fca0d	2107	FRESULT res;
TickTock	109:3e6f0e8fca0d	2108	DWORD clst, bcs, nsect, ifptr;
TickTock	109:3e6f0e8fca0d	2109
TickTock	109:3e6f0e8fca0d	2110
TickTock	109:3e6f0e8fca0d	2111	res = validate(fp->fs, fp->id); /* Check validity of the object */
TickTock	109:3e6f0e8fca0d	2112	if (res != FR_OK) LEAVE_FF(fp->fs, res);
TickTock	109:3e6f0e8fca0d	2113	if (fp->flag & FA__ERROR) /* Check abort flag */
TickTock	109:3e6f0e8fca0d	2114	LEAVE_FF(fp->fs, FR_INT_ERR);
TickTock	110:ffddff3ad2f2	2115	// if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
TickTock	110:ffddff3ad2f2	2116	//#if !_FS_READONLY /* LAJ: Always clip offset with file size */
TickTock	110:ffddff3ad2f2	2117	// && !(fp->flag & FA_WRITE)
TickTock	110:ffddff3ad2f2	2118	//#endif
TickTock	110:ffddff3ad2f2	2119	if (ofs > fp->fsize)
TickTock	110:ffddff3ad2f2	2120	ofs = fp->fsize; /* LAJ: Always clip offset with file size */
TickTock	109:3e6f0e8fca0d	2121
TickTock	109:3e6f0e8fca0d	2122	ifptr = fp->fptr;
TickTock	109:3e6f0e8fca0d	2123	fp->fptr = nsect = 0; fp->csect = 255;
TickTock	109:3e6f0e8fca0d	2124	if (ofs > 0) {
TickTock	109:3e6f0e8fca0d	2125	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
TickTock	109:3e6f0e8fca0d	2126	if (ifptr > 0 &&
TickTock	109:3e6f0e8fca0d	2127	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
TickTock	109:3e6f0e8fca0d	2128	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
TickTock	109:3e6f0e8fca0d	2129	ofs -= fp->fptr;
TickTock	109:3e6f0e8fca0d	2130	clst = fp->curr_clust;
TickTock	109:3e6f0e8fca0d	2131	} else { /* When seek to back cluster, */
TickTock	109:3e6f0e8fca0d	2132	clst = fp->org_clust; /* start from the first cluster */
TickTock	109:3e6f0e8fca0d	2133	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	2134	if (clst == 0) { /* If no cluster chain, create a new chain */
TickTock	109:3e6f0e8fca0d	2135	clst = create_chain(fp->fs, 0);
TickTock	109:3e6f0e8fca0d	2136	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2137	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	2138	fp->org_clust = clst;
TickTock	109:3e6f0e8fca0d	2139	}
TickTock	109:3e6f0e8fca0d	2140	#endif
TickTock	109:3e6f0e8fca0d	2141	fp->curr_clust = clst;
TickTock	109:3e6f0e8fca0d	2142	}
TickTock	109:3e6f0e8fca0d	2143	if (clst != 0) {
TickTock	109:3e6f0e8fca0d	2144	while (ofs > bcs) { /* Cluster following loop */
TickTock	109:3e6f0e8fca0d	2145	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	2146	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
TickTock	109:3e6f0e8fca0d	2147	clst = create_chain(fp->fs, clst); /* Force streached if in write mode */
TickTock	109:3e6f0e8fca0d	2148	if (clst == 0) { /* When disk gets full, clip file size */
TickTock	109:3e6f0e8fca0d	2149	ofs = bcs; break;
TickTock	109:3e6f0e8fca0d	2150	}
TickTock	109:3e6f0e8fca0d	2151	} else
TickTock	109:3e6f0e8fca0d	2152	#endif
TickTock	109:3e6f0e8fca0d	2153	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
TickTock	109:3e6f0e8fca0d	2154	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	2155	if (clst <= 1 \|\| clst >= fp->fs->max_clust) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2156	fp->curr_clust = clst;
TickTock	109:3e6f0e8fca0d	2157	fp->fptr += bcs;
TickTock	109:3e6f0e8fca0d	2158	ofs -= bcs;
TickTock	109:3e6f0e8fca0d	2159	}
TickTock	109:3e6f0e8fca0d	2160	fp->fptr += ofs;
TickTock	109:3e6f0e8fca0d	2161	fp->csect = (BYTE)(ofs / SS(fp->fs)); /* Sector offset in the cluster */
TickTock	109:3e6f0e8fca0d	2162	if (ofs % SS(fp->fs)) {
TickTock	109:3e6f0e8fca0d	2163	nsect = clust2sect(fp->fs, clst); /* Current sector */
TickTock	109:3e6f0e8fca0d	2164	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2165	nsect += fp->csect;
TickTock	109:3e6f0e8fca0d	2166	fp->csect++;
TickTock	109:3e6f0e8fca0d	2167	}
TickTock	109:3e6f0e8fca0d	2168	}
TickTock	109:3e6f0e8fca0d	2169	}
TickTock	109:3e6f0e8fca0d	2170	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) {
TickTock	109:3e6f0e8fca0d	2171	#if !_FS_TINY
TickTock	109:3e6f0e8fca0d	2172	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	2173	if (fp->flag & FA__DIRTY) { /* Write-back dirty buffer if needed */
TickTock	109:3e6f0e8fca0d	2174	if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	2175	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	2176	fp->flag &= ~FA__DIRTY;
TickTock	109:3e6f0e8fca0d	2177	}
TickTock	109:3e6f0e8fca0d	2178	#endif
TickTock	109:3e6f0e8fca0d	2179	if (disk_read(fp->fs->drive, fp->buf, nsect, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	2180	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	2181	#endif
TickTock	109:3e6f0e8fca0d	2182	fp->dsect = nsect;
TickTock	109:3e6f0e8fca0d	2183	}
TickTock	109:3e6f0e8fca0d	2184	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	2185	if (fp->fptr > fp->fsize) { /* Set changed flag if the file size is extended */
TickTock	109:3e6f0e8fca0d	2186	fp->fsize = fp->fptr;
TickTock	109:3e6f0e8fca0d	2187	fp->flag \|= FA__WRITTEN;
TickTock	109:3e6f0e8fca0d	2188	}
TickTock	109:3e6f0e8fca0d	2189	#endif
TickTock	109:3e6f0e8fca0d	2190
TickTock	109:3e6f0e8fca0d	2191	LEAVE_FF(fp->fs, res);
TickTock	109:3e6f0e8fca0d	2192	}
TickTock	109:3e6f0e8fca0d	2193
TickTock	109:3e6f0e8fca0d	2194
TickTock	109:3e6f0e8fca0d	2195
TickTock	109:3e6f0e8fca0d	2196
TickTock	109:3e6f0e8fca0d	2197	#if _FS_MINIMIZE <= 1
TickTock	109:3e6f0e8fca0d	2198	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2199	/* Create a Directroy Object */
TickTock	109:3e6f0e8fca0d	2200	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2201
TickTock	109:3e6f0e8fca0d	2202	FRESULT f_opendir (
TickTock	109:3e6f0e8fca0d	2203	eDIR dj, / Pointer to directory object to create */
TickTock	109:3e6f0e8fca0d	2204	const XCHAR path / Pointer to the directory path */
TickTock	109:3e6f0e8fca0d	2205	)
TickTock	109:3e6f0e8fca0d	2206	{
TickTock	109:3e6f0e8fca0d	2207	FRESULT res;
TickTock	109:3e6f0e8fca0d	2208	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	2209	BYTE *dir;
TickTock	109:3e6f0e8fca0d	2210
TickTock	109:3e6f0e8fca0d	2211
TickTock	109:3e6f0e8fca0d	2212	res = chk_mounted(&path, &dj->fs, 0);
TickTock	109:3e6f0e8fca0d	2213	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2214	INITBUF((*dj), sfn, lfn);
TickTock	109:3e6f0e8fca0d	2215	res = follow_path(dj, path); /* Follow the path to the directory */
TickTock	109:3e6f0e8fca0d	2216	if (res == FR_OK) { /* Follow completed */
TickTock	109:3e6f0e8fca0d	2217	dir = dj->dir;
TickTock	109:3e6f0e8fca0d	2218	if (dir) { /* It is not the root dir */
TickTock	109:3e6f0e8fca0d	2219	if (dir[DIR_Attr] & AM_DIR) { /* The object is a directory */
TickTock	109:3e6f0e8fca0d	2220	dj->sclust = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) \| LD_WORD(dir+DIR_FstClusLO);
TickTock	109:3e6f0e8fca0d	2221	} else { /* The object is not a directory */
TickTock	109:3e6f0e8fca0d	2222	res = FR_NO_PATH;
TickTock	109:3e6f0e8fca0d	2223	}
TickTock	109:3e6f0e8fca0d	2224	}
TickTock	109:3e6f0e8fca0d	2225	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2226	dj->id = dj->fs->id;
TickTock	109:3e6f0e8fca0d	2227	res = dir_seek(dj, 0); /* Rewind dir */
TickTock	109:3e6f0e8fca0d	2228	}
TickTock	109:3e6f0e8fca0d	2229	}
TickTock	109:3e6f0e8fca0d	2230	if (res == FR_NO_FILE) res = FR_NO_PATH;
TickTock	109:3e6f0e8fca0d	2231	}
TickTock	109:3e6f0e8fca0d	2232
TickTock	109:3e6f0e8fca0d	2233	LEAVE_FF(dj->fs, res);
TickTock	109:3e6f0e8fca0d	2234	}
TickTock	109:3e6f0e8fca0d	2235
TickTock	109:3e6f0e8fca0d	2236
TickTock	109:3e6f0e8fca0d	2237
TickTock	109:3e6f0e8fca0d	2238
TickTock	109:3e6f0e8fca0d	2239	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2240	/* Read Directory Entry in Sequense */
TickTock	109:3e6f0e8fca0d	2241	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2242
TickTock	109:3e6f0e8fca0d	2243	FRESULT f_readdir (
TickTock	109:3e6f0e8fca0d	2244	eDIR dj, / Pointer to the open directory object */
TickTock	109:3e6f0e8fca0d	2245	FILINFO fno / Pointer to file information to return */
TickTock	109:3e6f0e8fca0d	2246	)
TickTock	109:3e6f0e8fca0d	2247	{
TickTock	109:3e6f0e8fca0d	2248	FRESULT res;
TickTock	109:3e6f0e8fca0d	2249	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	2250
TickTock	109:3e6f0e8fca0d	2251
TickTock	109:3e6f0e8fca0d	2252	res = validate(dj->fs, dj->id); /* Check validity of the object */
TickTock	109:3e6f0e8fca0d	2253	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2254	INITBUF((*dj), sfn, lfn);
TickTock	109:3e6f0e8fca0d	2255	if (!fno) {
TickTock	109:3e6f0e8fca0d	2256	res = dir_seek(dj, 0);
TickTock	109:3e6f0e8fca0d	2257	} else {
TickTock	109:3e6f0e8fca0d	2258	res = dir_read(dj);
TickTock	109:3e6f0e8fca0d	2259	if (res == FR_NO_FILE) {
TickTock	109:3e6f0e8fca0d	2260	dj->sect = 0;
TickTock	109:3e6f0e8fca0d	2261	res = FR_OK;
TickTock	109:3e6f0e8fca0d	2262	}
TickTock	109:3e6f0e8fca0d	2263	if (res == FR_OK) { /* A valid entry is found */
TickTock	109:3e6f0e8fca0d	2264	get_fileinfo(dj, fno); /* Get the object information */
TickTock	109:3e6f0e8fca0d	2265	res = dir_next(dj, FALSE); /* Increment index for next */
TickTock	109:3e6f0e8fca0d	2266	if (res == FR_NO_FILE) {
TickTock	109:3e6f0e8fca0d	2267	dj->sect = 0;
TickTock	109:3e6f0e8fca0d	2268	res = FR_OK;
TickTock	109:3e6f0e8fca0d	2269	}
TickTock	109:3e6f0e8fca0d	2270	}
TickTock	109:3e6f0e8fca0d	2271	}
TickTock	109:3e6f0e8fca0d	2272	}
TickTock	109:3e6f0e8fca0d	2273
TickTock	109:3e6f0e8fca0d	2274	LEAVE_FF(dj->fs, res);
TickTock	109:3e6f0e8fca0d	2275	}
TickTock	109:3e6f0e8fca0d	2276
TickTock	109:3e6f0e8fca0d	2277
TickTock	109:3e6f0e8fca0d	2278
TickTock	109:3e6f0e8fca0d	2279	#if _FS_MINIMIZE == 0
TickTock	109:3e6f0e8fca0d	2280	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2281	/* Get File Status */
TickTock	109:3e6f0e8fca0d	2282	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2283
TickTock	109:3e6f0e8fca0d	2284	FRESULT f_stat (
TickTock	109:3e6f0e8fca0d	2285	const XCHAR path, / Pointer to the file path */
TickTock	109:3e6f0e8fca0d	2286	FILINFO fno / Pointer to file information to return */
TickTock	109:3e6f0e8fca0d	2287	)
TickTock	109:3e6f0e8fca0d	2288	{
TickTock	109:3e6f0e8fca0d	2289	FRESULT res;
TickTock	109:3e6f0e8fca0d	2290	eDIR dj;
TickTock	109:3e6f0e8fca0d	2291	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	2292
TickTock	109:3e6f0e8fca0d	2293
TickTock	109:3e6f0e8fca0d	2294	res = chk_mounted(&path, &dj.fs, 0);
TickTock	109:3e6f0e8fca0d	2295	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2296	INITBUF(dj, sfn, lfn);
TickTock	109:3e6f0e8fca0d	2297	res = follow_path(&dj, path); /* Follow the file path */
TickTock	109:3e6f0e8fca0d	2298	if (res == FR_OK) { /* Follwo completed */
TickTock	109:3e6f0e8fca0d	2299	if (dj.dir) /* Found an object */
TickTock	109:3e6f0e8fca0d	2300	get_fileinfo(&dj, fno);
TickTock	109:3e6f0e8fca0d	2301	else /* It is root dir */
TickTock	109:3e6f0e8fca0d	2302	res = FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	2303	}
TickTock	109:3e6f0e8fca0d	2304	}
TickTock	109:3e6f0e8fca0d	2305
TickTock	109:3e6f0e8fca0d	2306	LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2307	}
TickTock	109:3e6f0e8fca0d	2308
TickTock	109:3e6f0e8fca0d	2309
TickTock	109:3e6f0e8fca0d	2310
TickTock	109:3e6f0e8fca0d	2311	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	2312	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2313	/* Get Number of Free Clusters */
TickTock	109:3e6f0e8fca0d	2314	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2315
TickTock	109:3e6f0e8fca0d	2316	FRESULT f_getfree (
TickTock	109:3e6f0e8fca0d	2317	const XCHAR path, / Pointer to the logical drive number (root dir) */
TickTock	109:3e6f0e8fca0d	2318	DWORD nclst, / Pointer to the variable to return number of free clusters */
TickTock	109:3e6f0e8fca0d	2319	FATFS *fatfs / Pointer to pointer to corresponding file system object to return */
TickTock	109:3e6f0e8fca0d	2320	)
TickTock	109:3e6f0e8fca0d	2321	{
TickTock	109:3e6f0e8fca0d	2322	FRESULT res;
TickTock	109:3e6f0e8fca0d	2323	DWORD n, clst, sect, stat;
TickTock	109:3e6f0e8fca0d	2324	UINT i;
TickTock	109:3e6f0e8fca0d	2325	BYTE fat, *p;
TickTock	109:3e6f0e8fca0d	2326
TickTock	109:3e6f0e8fca0d	2327
TickTock	109:3e6f0e8fca0d	2328	/* Get drive number */
TickTock	109:3e6f0e8fca0d	2329	res = chk_mounted(&path, fatfs, 0);
TickTock	109:3e6f0e8fca0d	2330	if (res != FR_OK) LEAVE_FF(*fatfs, res);
TickTock	109:3e6f0e8fca0d	2331
TickTock	109:3e6f0e8fca0d	2332	/* If number of free cluster is valid, return it without cluster scan. */
TickTock	109:3e6f0e8fca0d	2333	if ((fatfs)->free_clust <= (fatfs)->max_clust - 2) {
TickTock	109:3e6f0e8fca0d	2334	nclst = (fatfs)->free_clust;
TickTock	109:3e6f0e8fca0d	2335	LEAVE_FF(*fatfs, FR_OK);
TickTock	109:3e6f0e8fca0d	2336	}
TickTock	109:3e6f0e8fca0d	2337
TickTock	109:3e6f0e8fca0d	2338	/* Get number of free clusters */
TickTock	109:3e6f0e8fca0d	2339	fat = (*fatfs)->fs_type;
TickTock	109:3e6f0e8fca0d	2340	n = 0;
TickTock	109:3e6f0e8fca0d	2341	if (fat == FS_FAT12) {
TickTock	109:3e6f0e8fca0d	2342	clst = 2;
TickTock	109:3e6f0e8fca0d	2343	do {
TickTock	109:3e6f0e8fca0d	2344	stat = get_fat(*fatfs, clst);
TickTock	109:3e6f0e8fca0d	2345	if (stat == 0xFFFFFFFF) LEAVE_FF(*fatfs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	2346	if (stat == 1) LEAVE_FF(*fatfs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2347	if (stat == 0) n++;
TickTock	109:3e6f0e8fca0d	2348	} while (++clst < (*fatfs)->max_clust);
TickTock	109:3e6f0e8fca0d	2349	} else {
TickTock	109:3e6f0e8fca0d	2350	clst = (*fatfs)->max_clust;
TickTock	109:3e6f0e8fca0d	2351	sect = (*fatfs)->fatbase;
TickTock	109:3e6f0e8fca0d	2352	i = 0; p = 0;
TickTock	109:3e6f0e8fca0d	2353	do {
TickTock	109:3e6f0e8fca0d	2354	if (!i) {
TickTock	109:3e6f0e8fca0d	2355	res = move_window(*fatfs, sect++);
TickTock	109:3e6f0e8fca0d	2356	if (res != FR_OK)
TickTock	109:3e6f0e8fca0d	2357	LEAVE_FF(*fatfs, res);
TickTock	109:3e6f0e8fca0d	2358	p = (*fatfs)->win;
TickTock	109:3e6f0e8fca0d	2359	i = SS(*fatfs);
TickTock	109:3e6f0e8fca0d	2360	}
TickTock	109:3e6f0e8fca0d	2361	if (fat == FS_FAT16) {
TickTock	109:3e6f0e8fca0d	2362	if (LD_WORD(p) == 0) n++;
TickTock	109:3e6f0e8fca0d	2363	p += 2; i -= 2;
TickTock	109:3e6f0e8fca0d	2364	} else {
TickTock	109:3e6f0e8fca0d	2365	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
TickTock	109:3e6f0e8fca0d	2366	p += 4; i -= 4;
TickTock	109:3e6f0e8fca0d	2367	}
TickTock	109:3e6f0e8fca0d	2368	} while (--clst);
TickTock	109:3e6f0e8fca0d	2369	}
TickTock	109:3e6f0e8fca0d	2370	(*fatfs)->free_clust = n;
TickTock	109:3e6f0e8fca0d	2371	if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
TickTock	109:3e6f0e8fca0d	2372	*nclst = n;
TickTock	109:3e6f0e8fca0d	2373
TickTock	109:3e6f0e8fca0d	2374	LEAVE_FF(*fatfs, FR_OK);
TickTock	109:3e6f0e8fca0d	2375	}
TickTock	109:3e6f0e8fca0d	2376
TickTock	109:3e6f0e8fca0d	2377
TickTock	109:3e6f0e8fca0d	2378
TickTock	109:3e6f0e8fca0d	2379
TickTock	109:3e6f0e8fca0d	2380	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2381	/* Truncate File */
TickTock	109:3e6f0e8fca0d	2382	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2383
TickTock	109:3e6f0e8fca0d	2384	FRESULT f_truncate (
TickTock	109:3e6f0e8fca0d	2385	FIL fp / Pointer to the file object */
TickTock	109:3e6f0e8fca0d	2386	)
TickTock	109:3e6f0e8fca0d	2387	{
TickTock	109:3e6f0e8fca0d	2388	FRESULT res;
TickTock	109:3e6f0e8fca0d	2389	DWORD ncl;
TickTock	109:3e6f0e8fca0d	2390
TickTock	109:3e6f0e8fca0d	2391
TickTock	109:3e6f0e8fca0d	2392	res = validate(fp->fs, fp->id); /* Check validity of the object */
TickTock	109:3e6f0e8fca0d	2393	if (res != FR_OK) LEAVE_FF(fp->fs, res);
TickTock	109:3e6f0e8fca0d	2394	if (fp->flag & FA__ERROR) /* Check abort flag */
TickTock	109:3e6f0e8fca0d	2395	LEAVE_FF(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2396	if (!(fp->flag & FA_WRITE)) /* Check access mode */
TickTock	109:3e6f0e8fca0d	2397	LEAVE_FF(fp->fs, FR_DENIED);
TickTock	109:3e6f0e8fca0d	2398
TickTock	109:3e6f0e8fca0d	2399	if (fp->fsize > fp->fptr) {
TickTock	109:3e6f0e8fca0d	2400	fp->fsize = fp->fptr; /* Set file size to current R/W point */
TickTock	109:3e6f0e8fca0d	2401	fp->flag \|= FA__WRITTEN;
TickTock	109:3e6f0e8fca0d	2402	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
TickTock	109:3e6f0e8fca0d	2403	res = remove_chain(fp->fs, fp->org_clust);
TickTock	109:3e6f0e8fca0d	2404	fp->org_clust = 0;
TickTock	109:3e6f0e8fca0d	2405	} else { /* When truncate a part of the file, remove remaining clusters */
TickTock	109:3e6f0e8fca0d	2406	ncl = get_fat(fp->fs, fp->curr_clust);
TickTock	109:3e6f0e8fca0d	2407	res = FR_OK;
TickTock	109:3e6f0e8fca0d	2408	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	2409	if (ncl == 1) res = FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	2410	if (res == FR_OK && ncl < fp->fs->max_clust) {
TickTock	109:3e6f0e8fca0d	2411	res = put_fat(fp->fs, fp->curr_clust, 0x0FFFFFFF);
TickTock	109:3e6f0e8fca0d	2412	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
TickTock	109:3e6f0e8fca0d	2413	}
TickTock	109:3e6f0e8fca0d	2414	}
TickTock	109:3e6f0e8fca0d	2415	}
TickTock	109:3e6f0e8fca0d	2416	if (res != FR_OK) fp->flag \|= FA__ERROR;
TickTock	109:3e6f0e8fca0d	2417
TickTock	109:3e6f0e8fca0d	2418	LEAVE_FF(fp->fs, res);
TickTock	109:3e6f0e8fca0d	2419	}
TickTock	109:3e6f0e8fca0d	2420
TickTock	109:3e6f0e8fca0d	2421
TickTock	109:3e6f0e8fca0d	2422
TickTock	109:3e6f0e8fca0d	2423
TickTock	109:3e6f0e8fca0d	2424	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2425	/* Delete a File or Directory */
TickTock	109:3e6f0e8fca0d	2426	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2427
TickTock	109:3e6f0e8fca0d	2428	FRESULT f_unlink (
TickTock	109:3e6f0e8fca0d	2429	const XCHAR path / Pointer to the file or directory path */
TickTock	109:3e6f0e8fca0d	2430	)
TickTock	109:3e6f0e8fca0d	2431	{
TickTock	109:3e6f0e8fca0d	2432	FRESULT res;
TickTock	109:3e6f0e8fca0d	2433	eDIR dj, sdj;
TickTock	109:3e6f0e8fca0d	2434	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	2435	BYTE *dir;
TickTock	109:3e6f0e8fca0d	2436	DWORD dclst;
TickTock	109:3e6f0e8fca0d	2437
TickTock	109:3e6f0e8fca0d	2438
TickTock	109:3e6f0e8fca0d	2439	res = chk_mounted(&path, &dj.fs, 1);
TickTock	109:3e6f0e8fca0d	2440	if (res != FR_OK) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2441
TickTock	109:3e6f0e8fca0d	2442	INITBUF(dj, sfn, lfn);
TickTock	109:3e6f0e8fca0d	2443	res = follow_path(&dj, path); /* Follow the file path */
TickTock	109:3e6f0e8fca0d	2444	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
TickTock	109:3e6f0e8fca0d	2445	res = FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	2446	if (res != FR_OK) LEAVE_FF(dj.fs, res); /* Follow failed */
TickTock	109:3e6f0e8fca0d	2447
TickTock	109:3e6f0e8fca0d	2448	dir = dj.dir;
TickTock	109:3e6f0e8fca0d	2449	if (!dir) /* Is it the root directory? */
TickTock	109:3e6f0e8fca0d	2450	LEAVE_FF(dj.fs, FR_INVALID_NAME);
TickTock	109:3e6f0e8fca0d	2451	if (dir[DIR_Attr] & AM_RDO) /* Is it a R/O object? */
TickTock	109:3e6f0e8fca0d	2452	LEAVE_FF(dj.fs, FR_DENIED);
TickTock	109:3e6f0e8fca0d	2453	dclst = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) \| LD_WORD(dir+DIR_FstClusLO);
TickTock	109:3e6f0e8fca0d	2454
TickTock	109:3e6f0e8fca0d	2455	if (dir[DIR_Attr] & AM_DIR) { /* It is a sub-directory */
TickTock	109:3e6f0e8fca0d	2456	if (dclst < 2) LEAVE_FF(dj.fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2457	mem_cpy(&sdj, &dj, sizeof(eDIR)); /* Check if the sub-dir is empty or not */
TickTock	109:3e6f0e8fca0d	2458	sdj.sclust = dclst;
TickTock	109:3e6f0e8fca0d	2459	res = dir_seek(&sdj, 2);
TickTock	109:3e6f0e8fca0d	2460	if (res != FR_OK) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2461	res = dir_read(&sdj);
TickTock	109:3e6f0e8fca0d	2462	if (res == FR_OK) res = FR_DENIED; /* Not empty sub-dir */
TickTock	109:3e6f0e8fca0d	2463	if (res != FR_NO_FILE) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2464	}
TickTock	109:3e6f0e8fca0d	2465
TickTock	109:3e6f0e8fca0d	2466	res = dir_remove(&dj); /* Remove directory entry */
TickTock	109:3e6f0e8fca0d	2467	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2468	if (dclst)
TickTock	109:3e6f0e8fca0d	2469	res = remove_chain(dj.fs, dclst); /* Remove the cluster chain */
TickTock	109:3e6f0e8fca0d	2470	if (res == FR_OK) res = sync(dj.fs);
TickTock	109:3e6f0e8fca0d	2471	}
TickTock	109:3e6f0e8fca0d	2472
TickTock	109:3e6f0e8fca0d	2473	LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2474	}
TickTock	109:3e6f0e8fca0d	2475
TickTock	109:3e6f0e8fca0d	2476
TickTock	109:3e6f0e8fca0d	2477
TickTock	109:3e6f0e8fca0d	2478
TickTock	109:3e6f0e8fca0d	2479	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2480	/* Create a Directory */
TickTock	109:3e6f0e8fca0d	2481	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2482
TickTock	109:3e6f0e8fca0d	2483	FRESULT f_mkdir (
TickTock	109:3e6f0e8fca0d	2484	const XCHAR path / Pointer to the directory path */
TickTock	109:3e6f0e8fca0d	2485	)
TickTock	109:3e6f0e8fca0d	2486	{
TickTock	109:3e6f0e8fca0d	2487	FRESULT res;
TickTock	109:3e6f0e8fca0d	2488	eDIR dj;
TickTock	109:3e6f0e8fca0d	2489	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	2490	BYTE *dir, n;
TickTock	109:3e6f0e8fca0d	2491	DWORD dsect, dclst, pclst, tim;
TickTock	109:3e6f0e8fca0d	2492
TickTock	109:3e6f0e8fca0d	2493
TickTock	109:3e6f0e8fca0d	2494	res = chk_mounted(&path, &dj.fs, 1);
TickTock	109:3e6f0e8fca0d	2495	if (res != FR_OK) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2496
TickTock	109:3e6f0e8fca0d	2497	INITBUF(dj, sfn, lfn);
TickTock	109:3e6f0e8fca0d	2498	res = follow_path(&dj, path); /* Follow the file path */
TickTock	109:3e6f0e8fca0d	2499	if (res == FR_OK) res = FR_EXIST; /* Any file or directory is already existing */
TickTock	109:3e6f0e8fca0d	2500	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
TickTock	109:3e6f0e8fca0d	2501	res = FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	2502	if (res != FR_NO_FILE) /* Any error occured */
TickTock	109:3e6f0e8fca0d	2503	LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2504
TickTock	109:3e6f0e8fca0d	2505	dclst = create_chain(dj.fs, 0); /* Allocate a new cluster for new directory table */
TickTock	109:3e6f0e8fca0d	2506	res = FR_OK;
TickTock	109:3e6f0e8fca0d	2507	if (dclst == 0) res = FR_DENIED;
TickTock	109:3e6f0e8fca0d	2508	if (dclst == 1) res = FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	2509	if (dclst == 0xFFFFFFFF) res = FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	2510	if (res == FR_OK)
TickTock	109:3e6f0e8fca0d	2511	res = move_window(dj.fs, 0);
TickTock	109:3e6f0e8fca0d	2512	if (res != FR_OK) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2513	dsect = clust2sect(dj.fs, dclst);
TickTock	109:3e6f0e8fca0d	2514
TickTock	109:3e6f0e8fca0d	2515	dir = dj.fs->win; /* Initialize the new directory table */
TickTock	109:3e6f0e8fca0d	2516	mem_set(dir, 0, SS(dj.fs));
TickTock	109:3e6f0e8fca0d	2517	mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */
TickTock	109:3e6f0e8fca0d	2518	dir[DIR_Name] = '.';
TickTock	109:3e6f0e8fca0d	2519	dir[DIR_Attr] = AM_DIR;
TickTock	109:3e6f0e8fca0d	2520	tim = get_fattime();
TickTock	109:3e6f0e8fca0d	2521	ST_DWORD(dir+DIR_WrtTime, tim);
TickTock	109:3e6f0e8fca0d	2522	ST_WORD(dir+DIR_FstClusLO, dclst);
TickTock	109:3e6f0e8fca0d	2523	ST_WORD(dir+DIR_FstClusHI, dclst >> 16);
TickTock	109:3e6f0e8fca0d	2524	mem_cpy(dir+32, dir, 32); /* Create ".." entry */
TickTock	109:3e6f0e8fca0d	2525	dir[33] = '.';
TickTock	109:3e6f0e8fca0d	2526	pclst = dj.sclust;
TickTock	109:3e6f0e8fca0d	2527	if (dj.fs->fs_type == FS_FAT32 && pclst == dj.fs->dirbase)
TickTock	109:3e6f0e8fca0d	2528	pclst = 0;
TickTock	109:3e6f0e8fca0d	2529	ST_WORD(dir+32+DIR_FstClusLO, pclst);
TickTock	109:3e6f0e8fca0d	2530	ST_WORD(dir+32+DIR_FstClusHI, pclst >> 16);
TickTock	109:3e6f0e8fca0d	2531	for (n = 0; n < dj.fs->csize; n++) { /* Write dot entries and clear left sectors */
TickTock	109:3e6f0e8fca0d	2532	dj.fs->winsect = dsect++;
TickTock	109:3e6f0e8fca0d	2533	dj.fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	2534	res = move_window(dj.fs, 0);
TickTock	109:3e6f0e8fca0d	2535	if (res) LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2536	mem_set(dir, 0, SS(dj.fs));
TickTock	109:3e6f0e8fca0d	2537	}
TickTock	109:3e6f0e8fca0d	2538
TickTock	109:3e6f0e8fca0d	2539	res = dir_register(&dj);
TickTock	109:3e6f0e8fca0d	2540	if (res != FR_OK) {
TickTock	109:3e6f0e8fca0d	2541	remove_chain(dj.fs, dclst);
TickTock	109:3e6f0e8fca0d	2542	} else {
TickTock	109:3e6f0e8fca0d	2543	dir = dj.dir;
TickTock	109:3e6f0e8fca0d	2544	dir[DIR_Attr] = AM_DIR; /* Attribute */
TickTock	109:3e6f0e8fca0d	2545	ST_DWORD(dir+DIR_WrtTime, tim); /* Crated time */
TickTock	109:3e6f0e8fca0d	2546	ST_WORD(dir+DIR_FstClusLO, dclst); /* Table start cluster */
TickTock	109:3e6f0e8fca0d	2547	ST_WORD(dir+DIR_FstClusHI, dclst >> 16);
TickTock	109:3e6f0e8fca0d	2548	dj.fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	2549	res = sync(dj.fs);
TickTock	109:3e6f0e8fca0d	2550	}
TickTock	109:3e6f0e8fca0d	2551
TickTock	109:3e6f0e8fca0d	2552	LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2553	}
TickTock	109:3e6f0e8fca0d	2554
TickTock	109:3e6f0e8fca0d	2555
TickTock	109:3e6f0e8fca0d	2556
TickTock	109:3e6f0e8fca0d	2557
TickTock	109:3e6f0e8fca0d	2558	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2559	/* Change File Attribute */
TickTock	109:3e6f0e8fca0d	2560	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2561
TickTock	109:3e6f0e8fca0d	2562	FRESULT f_chmod (
TickTock	109:3e6f0e8fca0d	2563	const XCHAR path, / Pointer to the file path */
TickTock	109:3e6f0e8fca0d	2564	BYTE value, /* Attribute bits */
TickTock	109:3e6f0e8fca0d	2565	BYTE mask /* Attribute mask to change */
TickTock	109:3e6f0e8fca0d	2566	)
TickTock	109:3e6f0e8fca0d	2567	{
TickTock	109:3e6f0e8fca0d	2568	FRESULT res;
TickTock	109:3e6f0e8fca0d	2569	eDIR dj;
TickTock	109:3e6f0e8fca0d	2570	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	2571	BYTE *dir;
TickTock	109:3e6f0e8fca0d	2572
TickTock	109:3e6f0e8fca0d	2573
TickTock	109:3e6f0e8fca0d	2574	res = chk_mounted(&path, &dj.fs, 1);
TickTock	109:3e6f0e8fca0d	2575	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2576	INITBUF(dj, sfn, lfn);
TickTock	109:3e6f0e8fca0d	2577	res = follow_path(&dj, path); /* Follow the file path */
TickTock	109:3e6f0e8fca0d	2578	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
TickTock	109:3e6f0e8fca0d	2579	res = FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	2580	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2581	dir = dj.dir;
TickTock	109:3e6f0e8fca0d	2582	if (!dir) { /* Is it a root directory? */
TickTock	109:3e6f0e8fca0d	2583	res = FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	2584	} else { /* File or sub directory */
TickTock	109:3e6f0e8fca0d	2585	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
TickTock	109:3e6f0e8fca0d	2586	dir[DIR_Attr] = (value & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
TickTock	109:3e6f0e8fca0d	2587	dj.fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	2588	res = sync(dj.fs);
TickTock	109:3e6f0e8fca0d	2589	}
TickTock	109:3e6f0e8fca0d	2590	}
TickTock	109:3e6f0e8fca0d	2591	}
TickTock	109:3e6f0e8fca0d	2592
TickTock	109:3e6f0e8fca0d	2593	LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2594	}
TickTock	109:3e6f0e8fca0d	2595
TickTock	109:3e6f0e8fca0d	2596
TickTock	109:3e6f0e8fca0d	2597
TickTock	109:3e6f0e8fca0d	2598
TickTock	109:3e6f0e8fca0d	2599	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2600	/* Change Timestamp */
TickTock	109:3e6f0e8fca0d	2601	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2602
TickTock	109:3e6f0e8fca0d	2603	FRESULT f_utime (
TickTock	109:3e6f0e8fca0d	2604	const XCHAR path, / Pointer to the file/directory name */
TickTock	109:3e6f0e8fca0d	2605	const FILINFO fno / Pointer to the timestamp to be set */
TickTock	109:3e6f0e8fca0d	2606	)
TickTock	109:3e6f0e8fca0d	2607	{
TickTock	109:3e6f0e8fca0d	2608	FRESULT res;
TickTock	109:3e6f0e8fca0d	2609	eDIR dj;
TickTock	109:3e6f0e8fca0d	2610	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	2611	BYTE *dir;
TickTock	109:3e6f0e8fca0d	2612
TickTock	109:3e6f0e8fca0d	2613
TickTock	109:3e6f0e8fca0d	2614	res = chk_mounted(&path, &dj.fs, 1);
TickTock	109:3e6f0e8fca0d	2615	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2616	INITBUF(dj, sfn, lfn);
TickTock	109:3e6f0e8fca0d	2617	res = follow_path(&dj, path); /* Follow the file path */
TickTock	109:3e6f0e8fca0d	2618	if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
TickTock	109:3e6f0e8fca0d	2619	res = FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	2620	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2621	dir = dj.dir;
TickTock	109:3e6f0e8fca0d	2622	if (!dir) { /* Root directory */
TickTock	109:3e6f0e8fca0d	2623	res = FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	2624	} else { /* File or sub-directory */
TickTock	109:3e6f0e8fca0d	2625	ST_WORD(dir+DIR_WrtTime, fno->ftime);
TickTock	109:3e6f0e8fca0d	2626	ST_WORD(dir+DIR_WrtDate, fno->fdate);
TickTock	109:3e6f0e8fca0d	2627	dj.fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	2628	res = sync(dj.fs);
TickTock	109:3e6f0e8fca0d	2629	}
TickTock	109:3e6f0e8fca0d	2630	}
TickTock	109:3e6f0e8fca0d	2631	}
TickTock	109:3e6f0e8fca0d	2632
TickTock	109:3e6f0e8fca0d	2633	LEAVE_FF(dj.fs, res);
TickTock	109:3e6f0e8fca0d	2634	}
TickTock	109:3e6f0e8fca0d	2635
TickTock	109:3e6f0e8fca0d	2636
TickTock	109:3e6f0e8fca0d	2637
TickTock	109:3e6f0e8fca0d	2638
TickTock	109:3e6f0e8fca0d	2639	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2640	/* Rename File/Directory */
TickTock	109:3e6f0e8fca0d	2641	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2642
TickTock	109:3e6f0e8fca0d	2643	FRESULT f_rename (
TickTock	109:3e6f0e8fca0d	2644	const XCHAR path_old, / Pointer to the old name */
TickTock	109:3e6f0e8fca0d	2645	const XCHAR path_new / Pointer to the new name */
TickTock	109:3e6f0e8fca0d	2646	)
TickTock	109:3e6f0e8fca0d	2647	{
TickTock	109:3e6f0e8fca0d	2648	FRESULT res;
TickTock	109:3e6f0e8fca0d	2649	eDIR dj_old, dj_new;
TickTock	109:3e6f0e8fca0d	2650	NAMEBUF(sfn, lfn);
TickTock	109:3e6f0e8fca0d	2651	BYTE buf[21], *dir;
TickTock	109:3e6f0e8fca0d	2652	DWORD dw;
TickTock	109:3e6f0e8fca0d	2653
TickTock	109:3e6f0e8fca0d	2654
TickTock	109:3e6f0e8fca0d	2655	INITBUF(dj_old, sfn, lfn);
TickTock	109:3e6f0e8fca0d	2656	res = chk_mounted(&path_old, &dj_old.fs, 1);
TickTock	109:3e6f0e8fca0d	2657	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2658	dj_new.fs = dj_old.fs;
TickTock	109:3e6f0e8fca0d	2659	res = follow_path(&dj_old, path_old); /* Check old object */
TickTock	109:3e6f0e8fca0d	2660	if (_FS_RPATH && res == FR_OK && (dj_old.fn[NS] & NS_DOT))
TickTock	109:3e6f0e8fca0d	2661	res = FR_INVALID_NAME;
TickTock	109:3e6f0e8fca0d	2662	}
TickTock	109:3e6f0e8fca0d	2663	if (res != FR_OK) LEAVE_FF(dj_old.fs, res); /* The old object is not found */
TickTock	109:3e6f0e8fca0d	2664
TickTock	109:3e6f0e8fca0d	2665	if (!dj_old.dir) LEAVE_FF(dj_old.fs, FR_NO_FILE); /* Is root dir? */
TickTock	109:3e6f0e8fca0d	2666	mem_cpy(buf, dj_old.dir+DIR_Attr, 21); /* Save the object information */
TickTock	109:3e6f0e8fca0d	2667
TickTock	109:3e6f0e8fca0d	2668	mem_cpy(&dj_new, &dj_old, sizeof(eDIR));
TickTock	109:3e6f0e8fca0d	2669	res = follow_path(&dj_new, path_new); /* Check new object */
TickTock	109:3e6f0e8fca0d	2670	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
TickTock	109:3e6f0e8fca0d	2671	if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
TickTock	109:3e6f0e8fca0d	2672	res = dir_register(&dj_new); /* Register the new object */
TickTock	109:3e6f0e8fca0d	2673	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2674	dir = dj_new.dir; /* Copy object information into new entry */
TickTock	109:3e6f0e8fca0d	2675	mem_cpy(dir+13, buf+2, 19);
TickTock	109:3e6f0e8fca0d	2676	dir[DIR_Attr] = buf[0] \| AM_ARC;
TickTock	109:3e6f0e8fca0d	2677	dj_old.fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	2678	if (dir[DIR_Attr] & AM_DIR) { /* Update .. entry in the directory if needed */
TickTock	109:3e6f0e8fca0d	2679	dw = clust2sect(dj_new.fs, (DWORD)LD_WORD(dir+DIR_FstClusHI) \| LD_WORD(dir+DIR_FstClusLO));
TickTock	109:3e6f0e8fca0d	2680	if (!dw) {
TickTock	109:3e6f0e8fca0d	2681	res = FR_INT_ERR;
TickTock	109:3e6f0e8fca0d	2682	} else {
TickTock	109:3e6f0e8fca0d	2683	res = move_window(dj_new.fs, dw);
TickTock	109:3e6f0e8fca0d	2684	dir = dj_new.fs->win+32;
TickTock	109:3e6f0e8fca0d	2685	if (res == FR_OK && dir[1] == '.') {
TickTock	109:3e6f0e8fca0d	2686	dw = (dj_new.fs->fs_type == FS_FAT32 && dj_new.sclust == dj_new.fs->dirbase) ? 0 : dj_new.sclust;
TickTock	109:3e6f0e8fca0d	2687	ST_WORD(dir+DIR_FstClusLO, dw);
TickTock	109:3e6f0e8fca0d	2688	ST_WORD(dir+DIR_FstClusHI, dw >> 16);
TickTock	109:3e6f0e8fca0d	2689	dj_new.fs->wflag = 1;
TickTock	109:3e6f0e8fca0d	2690	}
TickTock	109:3e6f0e8fca0d	2691	}
TickTock	109:3e6f0e8fca0d	2692	}
TickTock	109:3e6f0e8fca0d	2693	if (res == FR_OK) {
TickTock	109:3e6f0e8fca0d	2694	res = dir_remove(&dj_old); /* Remove old entry */
TickTock	109:3e6f0e8fca0d	2695	if (res == FR_OK)
TickTock	109:3e6f0e8fca0d	2696	res = sync(dj_old.fs);
TickTock	109:3e6f0e8fca0d	2697	}
TickTock	109:3e6f0e8fca0d	2698	}
TickTock	109:3e6f0e8fca0d	2699	}
TickTock	109:3e6f0e8fca0d	2700
TickTock	109:3e6f0e8fca0d	2701	LEAVE_FF(dj_old.fs, res);
TickTock	109:3e6f0e8fca0d	2702	}
TickTock	109:3e6f0e8fca0d	2703
TickTock	109:3e6f0e8fca0d	2704	#endif /* !_FS_READONLY */
TickTock	109:3e6f0e8fca0d	2705	#endif /* _FS_MINIMIZE == 0 */
TickTock	109:3e6f0e8fca0d	2706	#endif /* _FS_MINIMIZE <= 1 */
TickTock	109:3e6f0e8fca0d	2707	#endif /* _FS_MINIMIZE <= 2 */
TickTock	109:3e6f0e8fca0d	2708
TickTock	109:3e6f0e8fca0d	2709
TickTock	109:3e6f0e8fca0d	2710
TickTock	109:3e6f0e8fca0d	2711	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2712	/* Forward data to the stream directly (Available on only _FS_TINY cfg) */
TickTock	109:3e6f0e8fca0d	2713	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2714	#if _USE_FORWARD && _FS_TINY
TickTock	109:3e6f0e8fca0d	2715
TickTock	109:3e6f0e8fca0d	2716	FRESULT f_forward (
TickTock	109:3e6f0e8fca0d	2717	FIL fp, / Pointer to the file object */
TickTock	109:3e6f0e8fca0d	2718	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
TickTock	109:3e6f0e8fca0d	2719	UINT btr, /* Number of bytes to forward */
TickTock	109:3e6f0e8fca0d	2720	UINT bf / Pointer to number of bytes forwarded */
TickTock	109:3e6f0e8fca0d	2721	)
TickTock	109:3e6f0e8fca0d	2722	{
TickTock	109:3e6f0e8fca0d	2723	FRESULT res;
TickTock	109:3e6f0e8fca0d	2724	DWORD remain, clst, sect;
TickTock	109:3e6f0e8fca0d	2725	UINT rcnt;
TickTock	109:3e6f0e8fca0d	2726
TickTock	109:3e6f0e8fca0d	2727
TickTock	109:3e6f0e8fca0d	2728	*bf = 0;
TickTock	109:3e6f0e8fca0d	2729
TickTock	109:3e6f0e8fca0d	2730	res = validate(fp->fs, fp->id); /* Check validity of the object */
TickTock	109:3e6f0e8fca0d	2731	if (res != FR_OK) LEAVE_FF(fp->fs, res);
TickTock	109:3e6f0e8fca0d	2732	if (fp->flag & FA__ERROR) /* Check error flag */
TickTock	109:3e6f0e8fca0d	2733	LEAVE_FF(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2734	if (!(fp->flag & FA_READ)) /* Check access mode */
TickTock	109:3e6f0e8fca0d	2735	LEAVE_FF(fp->fs, FR_DENIED);
TickTock	109:3e6f0e8fca0d	2736
TickTock	109:3e6f0e8fca0d	2737	remain = fp->fsize - fp->fptr;
TickTock	109:3e6f0e8fca0d	2738	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
TickTock	109:3e6f0e8fca0d	2739
TickTock	109:3e6f0e8fca0d	2740	for ( ; btr && (func)(NULL, 0); / Repeat until all data transferred or stream becomes busy */
TickTock	109:3e6f0e8fca0d	2741	fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
TickTock	109:3e6f0e8fca0d	2742	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
TickTock	109:3e6f0e8fca0d	2743	if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */
TickTock	109:3e6f0e8fca0d	2744	clst = (fp->fptr == 0) ? /* On the top of the file? */
TickTock	109:3e6f0e8fca0d	2745	fp->org_clust : get_fat(fp->fs, fp->curr_clust);
TickTock	109:3e6f0e8fca0d	2746	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2747	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	2748	fp->curr_clust = clst; /* Update current cluster */
TickTock	109:3e6f0e8fca0d	2749	fp->csect = 0; /* Reset sector address in the cluster */
TickTock	109:3e6f0e8fca0d	2750	}
TickTock	109:3e6f0e8fca0d	2751	fp->csect++; /* Next sector address in the cluster */
TickTock	109:3e6f0e8fca0d	2752	}
TickTock	109:3e6f0e8fca0d	2753	sect = clust2sect(fp->fs, fp->curr_clust); /* Get current data sector */
TickTock	109:3e6f0e8fca0d	2754	if (!sect) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2755	sect += fp->csect - 1;
TickTock	109:3e6f0e8fca0d	2756	if (move_window(fp->fs, sect)) /* Move sector window */
TickTock	109:3e6f0e8fca0d	2757	ABORT(fp->fs, FR_DISK_ERR);
TickTock	109:3e6f0e8fca0d	2758	fp->dsect = sect;
TickTock	109:3e6f0e8fca0d	2759	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
TickTock	109:3e6f0e8fca0d	2760	if (rcnt > btr) rcnt = btr;
TickTock	109:3e6f0e8fca0d	2761	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
TickTock	109:3e6f0e8fca0d	2762	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
TickTock	109:3e6f0e8fca0d	2763	}
TickTock	109:3e6f0e8fca0d	2764
TickTock	109:3e6f0e8fca0d	2765	LEAVE_FF(fp->fs, FR_OK);
TickTock	109:3e6f0e8fca0d	2766	}
TickTock	109:3e6f0e8fca0d	2767	#endif /* _USE_FORWARD */
TickTock	109:3e6f0e8fca0d	2768
TickTock	109:3e6f0e8fca0d	2769
TickTock	109:3e6f0e8fca0d	2770
TickTock	109:3e6f0e8fca0d	2771	#if _USE_MKFS && !_FS_READONLY
TickTock	109:3e6f0e8fca0d	2772	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2773	/* Create File System on the Drive */
TickTock	109:3e6f0e8fca0d	2774	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2775	#define N_ROOTDIR 512 /* Multiple of 32 and <= 2048 */
TickTock	109:3e6f0e8fca0d	2776	#define N_FATS 1 /* 1 or 2 */
TickTock	109:3e6f0e8fca0d	2777	#define MAX_SECTOR 131072000UL /* Maximum partition size */
TickTock	109:3e6f0e8fca0d	2778	#define MIN_SECTOR 2000UL /* Minimum partition size */
TickTock	109:3e6f0e8fca0d	2779
TickTock	109:3e6f0e8fca0d	2780
TickTock	109:3e6f0e8fca0d	2781	FRESULT f_mkfs (
TickTock	109:3e6f0e8fca0d	2782	BYTE drv, /* Logical drive number */
TickTock	109:3e6f0e8fca0d	2783	BYTE partition, /* Partitioning rule 0:FDISK, 1:SFD */
TickTock	109:3e6f0e8fca0d	2784	WORD allocsize /* Allocation unit size [bytes] */
TickTock	109:3e6f0e8fca0d	2785	)
TickTock	109:3e6f0e8fca0d	2786	{
TickTock	109:3e6f0e8fca0d	2787	static const DWORD sstbl[] = { 2048000, 1024000, 512000, 256000, 128000, 64000, 32000, 16000, 8000, 4000, 0 };
TickTock	109:3e6f0e8fca0d	2788	static const WORD cstbl[] = { 32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512 };
TickTock	109:3e6f0e8fca0d	2789	BYTE fmt, m, *tbl;
TickTock	109:3e6f0e8fca0d	2790	DWORD b_part, b_fat, b_dir, b_data; /* Area offset (LBA) */
TickTock	109:3e6f0e8fca0d	2791	DWORD n_part, n_rsv, n_fat, n_dir; /* Area size */
TickTock	109:3e6f0e8fca0d	2792	DWORD n_clst, d, n;
TickTock	109:3e6f0e8fca0d	2793	WORD as;
TickTock	109:3e6f0e8fca0d	2794	FATFS *fs;
TickTock	109:3e6f0e8fca0d	2795	DSTATUS stat;
TickTock	109:3e6f0e8fca0d	2796
TickTock	109:3e6f0e8fca0d	2797
TickTock	109:3e6f0e8fca0d	2798	/* Check validity of the parameters */
TickTock	109:3e6f0e8fca0d	2799	if (drv >= _DRIVES) return FR_INVALID_DRIVE;
TickTock	109:3e6f0e8fca0d	2800	if (partition >= 2) return FR_MKFS_ABORTED;
TickTock	109:3e6f0e8fca0d	2801
TickTock	109:3e6f0e8fca0d	2802	/* Check mounted drive and clear work area */
TickTock	109:3e6f0e8fca0d	2803	fs = FatFs[drv];
TickTock	109:3e6f0e8fca0d	2804	if (!fs) return FR_NOT_ENABLED;
TickTock	109:3e6f0e8fca0d	2805	fs->fs_type = 0;
TickTock	109:3e6f0e8fca0d	2806	drv = LD2PD(drv);
TickTock	109:3e6f0e8fca0d	2807
TickTock	109:3e6f0e8fca0d	2808	/* Get disk statics */
TickTock	109:3e6f0e8fca0d	2809	stat = disk_initialize(drv);
TickTock	109:3e6f0e8fca0d	2810	if (stat & STA_NOINIT) return FR_NOT_READY;
TickTock	109:3e6f0e8fca0d	2811	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
TickTock	109:3e6f0e8fca0d	2812	#if _MAX_SS != 512 /* Get disk sector size */
TickTock	109:3e6f0e8fca0d	2813	if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
TickTock	109:3e6f0e8fca0d	2814	\|\| SS(fs) > _MAX_SS)
TickTock	109:3e6f0e8fca0d	2815	return FR_MKFS_ABORTED;
TickTock	109:3e6f0e8fca0d	2816	#endif
TickTock	109:3e6f0e8fca0d	2817	if (disk_ioctl(drv, GET_SECTOR_COUNT, &n_part) != RES_OK \|\| n_part < MIN_SECTOR)
TickTock	109:3e6f0e8fca0d	2818	return FR_MKFS_ABORTED;
TickTock	109:3e6f0e8fca0d	2819	if (n_part > MAX_SECTOR) n_part = MAX_SECTOR;
TickTock	109:3e6f0e8fca0d	2820	b_part = (!partition) ? 63 : 0; /* Boot sector */
TickTock	109:3e6f0e8fca0d	2821	n_part -= b_part;
TickTock	109:3e6f0e8fca0d	2822	for (d = 512; d <= 32768U && d != allocsize; d <<= 1) ; /* Check validity of the allocation unit size */
TickTock	109:3e6f0e8fca0d	2823	if (d != allocsize) allocsize = 0;
TickTock	109:3e6f0e8fca0d	2824	if (!allocsize) { /* Auto selection of cluster size */
TickTock	109:3e6f0e8fca0d	2825	d = n_part;
TickTock	109:3e6f0e8fca0d	2826	for (as = SS(fs); as > 512U; as >>= 1) d >>= 1;
TickTock	109:3e6f0e8fca0d	2827	for (n = 0; d < sstbl[n]; n++) ;
TickTock	109:3e6f0e8fca0d	2828	allocsize = cstbl[n];
TickTock	109:3e6f0e8fca0d	2829	}
TickTock	109:3e6f0e8fca0d	2830	if (allocsize < SS(fs)) allocsize = SS(fs);
TickTock	109:3e6f0e8fca0d	2831
TickTock	109:3e6f0e8fca0d	2832	allocsize /= SS(fs); /* Number of sectors per cluster */
TickTock	109:3e6f0e8fca0d	2833
TickTock	109:3e6f0e8fca0d	2834	/* Pre-compute number of clusters and FAT type */
TickTock	109:3e6f0e8fca0d	2835	n_clst = n_part / allocsize;
TickTock	109:3e6f0e8fca0d	2836	fmt = FS_FAT12;
TickTock	109:3e6f0e8fca0d	2837	if (n_clst >= 0xFF5) fmt = FS_FAT16;
TickTock	109:3e6f0e8fca0d	2838	if (n_clst >= 0xFFF5) fmt = FS_FAT32;
TickTock	109:3e6f0e8fca0d	2839
TickTock	109:3e6f0e8fca0d	2840	/* Determine offset and size of FAT structure */
TickTock	109:3e6f0e8fca0d	2841	switch (fmt) {
TickTock	109:3e6f0e8fca0d	2842	case FS_FAT12:
TickTock	109:3e6f0e8fca0d	2843	n_fat = ((n_clst * 3 + 1) / 2 + 3 + SS(fs) - 1) / SS(fs);
TickTock	109:3e6f0e8fca0d	2844	n_rsv = 1 + partition;
TickTock	109:3e6f0e8fca0d	2845	n_dir = N_ROOTDIR * 32 / SS(fs);
TickTock	109:3e6f0e8fca0d	2846	break;
TickTock	109:3e6f0e8fca0d	2847	case FS_FAT16:
TickTock	109:3e6f0e8fca0d	2848	n_fat = ((n_clst * 2) + 4 + SS(fs) - 1) / SS(fs);
TickTock	109:3e6f0e8fca0d	2849	n_rsv = 1 + partition;
TickTock	109:3e6f0e8fca0d	2850	n_dir = N_ROOTDIR * 32 / SS(fs);
TickTock	109:3e6f0e8fca0d	2851	break;
TickTock	109:3e6f0e8fca0d	2852	default:
TickTock	109:3e6f0e8fca0d	2853	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
TickTock	109:3e6f0e8fca0d	2854	n_rsv = 33 - partition;
TickTock	109:3e6f0e8fca0d	2855	n_dir = 0;
TickTock	109:3e6f0e8fca0d	2856	}
TickTock	109:3e6f0e8fca0d	2857	b_fat = b_part + n_rsv; /* FATs start sector */
TickTock	109:3e6f0e8fca0d	2858	b_dir = b_fat + n_fat * N_FATS; /* Directory start sector */
TickTock	109:3e6f0e8fca0d	2859	b_data = b_dir + n_dir; /* Data start sector */
TickTock	109:3e6f0e8fca0d	2860
TickTock	109:3e6f0e8fca0d	2861	/* Align data start sector to erase block boundary (for flash memory media) */
TickTock	109:3e6f0e8fca0d	2862	if (disk_ioctl(drv, GET_BLOCK_SIZE, &n) != RES_OK) return FR_MKFS_ABORTED;
TickTock	109:3e6f0e8fca0d	2863	n = (b_data + n - 1) & ~(n - 1);
TickTock	109:3e6f0e8fca0d	2864	n_fat += (n - b_data) / N_FATS;
TickTock	109:3e6f0e8fca0d	2865	/* b_dir and b_data are no longer used below */
TickTock	109:3e6f0e8fca0d	2866
TickTock	109:3e6f0e8fca0d	2867	/* Determine number of cluster and final check of validity of the FAT type */
TickTock	109:3e6f0e8fca0d	2868	n_clst = (n_part - n_rsv - n_fat * N_FATS - n_dir) / allocsize;
TickTock	109:3e6f0e8fca0d	2869	if ( (fmt == FS_FAT16 && n_clst < 0xFF5)
TickTock	109:3e6f0e8fca0d	2870	\|\| (fmt == FS_FAT32 && n_clst < 0xFFF5))
TickTock	109:3e6f0e8fca0d	2871	return FR_MKFS_ABORTED;
TickTock	109:3e6f0e8fca0d	2872
TickTock	109:3e6f0e8fca0d	2873	/* Create partition table if needed */
TickTock	109:3e6f0e8fca0d	2874	if (!partition) {
TickTock	109:3e6f0e8fca0d	2875	DWORD n_disk = b_part + n_part;
TickTock	109:3e6f0e8fca0d	2876
TickTock	109:3e6f0e8fca0d	2877	mem_set(fs->win, 0, SS(fs));
TickTock	109:3e6f0e8fca0d	2878	tbl = fs->win+MBR_Table;
TickTock	109:3e6f0e8fca0d	2879	ST_DWORD(tbl, 0x00010180); /* Partition start in CHS */
TickTock	109:3e6f0e8fca0d	2880	if (n_disk < 63UL * 255 * 1024) { /* Partition end in CHS */
TickTock	109:3e6f0e8fca0d	2881	n_disk = n_disk / 63 / 255;
TickTock	109:3e6f0e8fca0d	2882	tbl[7] = (BYTE)n_disk;
TickTock	109:3e6f0e8fca0d	2883	tbl[6] = (BYTE)((n_disk >> 2) \| 63);
TickTock	109:3e6f0e8fca0d	2884	} else {
TickTock	109:3e6f0e8fca0d	2885	ST_WORD(&tbl[6], 0xFFFF);
TickTock	109:3e6f0e8fca0d	2886	}
TickTock	109:3e6f0e8fca0d	2887	tbl[5] = 254;
TickTock	109:3e6f0e8fca0d	2888	if (fmt != FS_FAT32) /* System ID */
TickTock	109:3e6f0e8fca0d	2889	tbl[4] = (n_part < 0x10000) ? 0x04 : 0x06;
TickTock	109:3e6f0e8fca0d	2890	else
TickTock	109:3e6f0e8fca0d	2891	tbl[4] = 0x0c;
TickTock	109:3e6f0e8fca0d	2892	ST_DWORD(tbl+8, 63); /* Partition start in LBA */
TickTock	109:3e6f0e8fca0d	2893	ST_DWORD(tbl+12, n_part); /* Partition size in LBA */
TickTock	109:3e6f0e8fca0d	2894	ST_WORD(tbl+64, 0xAA55); /* Signature */
TickTock	109:3e6f0e8fca0d	2895	if (disk_write(drv, fs->win, 0, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	2896	return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	2897	partition = 0xF8;
TickTock	109:3e6f0e8fca0d	2898	} else {
TickTock	109:3e6f0e8fca0d	2899	partition = 0xF0;
TickTock	109:3e6f0e8fca0d	2900	}
TickTock	109:3e6f0e8fca0d	2901
TickTock	109:3e6f0e8fca0d	2902	/* Create boot record */
TickTock	109:3e6f0e8fca0d	2903	tbl = fs->win; /* Clear buffer */
TickTock	109:3e6f0e8fca0d	2904	mem_set(tbl, 0, SS(fs));
TickTock	109:3e6f0e8fca0d	2905	ST_DWORD(tbl+BS_jmpBoot, 0x90FEEB); /* Boot code (jmp $, nop) */
TickTock	109:3e6f0e8fca0d	2906	ST_WORD(tbl+BPB_BytsPerSec, SS(fs)); /* Sector size */
TickTock	109:3e6f0e8fca0d	2907	tbl[BPB_SecPerClus] = (BYTE)allocsize; /* Sectors per cluster */
TickTock	109:3e6f0e8fca0d	2908	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
TickTock	109:3e6f0e8fca0d	2909	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
TickTock	109:3e6f0e8fca0d	2910	ST_WORD(tbl+BPB_RootEntCnt, SS(fs) / 32 * n_dir); /* Number of rootdir entries */
TickTock	109:3e6f0e8fca0d	2911	if (n_part < 0x10000) { /* Number of total sectors */
TickTock	109:3e6f0e8fca0d	2912	ST_WORD(tbl+BPB_TotSec16, n_part);
TickTock	109:3e6f0e8fca0d	2913	} else {
TickTock	109:3e6f0e8fca0d	2914	ST_DWORD(tbl+BPB_TotSec32, n_part);
TickTock	109:3e6f0e8fca0d	2915	}
TickTock	109:3e6f0e8fca0d	2916	tbl[BPB_Media] = partition; /* Media descripter */
TickTock	109:3e6f0e8fca0d	2917	ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
TickTock	109:3e6f0e8fca0d	2918	ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
TickTock	109:3e6f0e8fca0d	2919	ST_DWORD(tbl+BPB_HiddSec, b_part); /* Hidden sectors */
TickTock	109:3e6f0e8fca0d	2920	n = get_fattime(); /* Use current time as a VSN */
TickTock	109:3e6f0e8fca0d	2921	if (fmt != FS_FAT32) {
TickTock	109:3e6f0e8fca0d	2922	ST_DWORD(tbl+BS_VolID, n); /* Volume serial number */
TickTock	109:3e6f0e8fca0d	2923	ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of secters per FAT */
TickTock	109:3e6f0e8fca0d	2924	tbl[BS_DrvNum] = 0x80; /* Drive number */
TickTock	109:3e6f0e8fca0d	2925	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
TickTock	109:3e6f0e8fca0d	2926	mem_cpy(tbl+BS_VolLab, "NO NAME FAT ", 19); /* Volume lavel, FAT signature */
TickTock	109:3e6f0e8fca0d	2927	} else {
TickTock	109:3e6f0e8fca0d	2928	ST_DWORD(tbl+BS_VolID32, n); /* Volume serial number */
TickTock	109:3e6f0e8fca0d	2929	ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of secters per FAT */
TickTock	109:3e6f0e8fca0d	2930	ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory cluster (2) */
TickTock	109:3e6f0e8fca0d	2931	ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (bs+1) */
TickTock	109:3e6f0e8fca0d	2932	ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (bs+6) */
TickTock	109:3e6f0e8fca0d	2933	tbl[BS_DrvNum32] = 0x80; /* Drive number */
TickTock	109:3e6f0e8fca0d	2934	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
TickTock	109:3e6f0e8fca0d	2935	mem_cpy(tbl+BS_VolLab32, "NO NAME FAT32 ", 19); /* Volume lavel, FAT signature */
TickTock	109:3e6f0e8fca0d	2936	}
TickTock	109:3e6f0e8fca0d	2937	ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature */
TickTock	109:3e6f0e8fca0d	2938	if (SS(fs) > 512U) {
TickTock	109:3e6f0e8fca0d	2939	ST_WORD(tbl+SS(fs)-2, 0xAA55);
TickTock	109:3e6f0e8fca0d	2940	}
TickTock	109:3e6f0e8fca0d	2941	if (disk_write(drv, tbl, b_part+0, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	2942	return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	2943	if (fmt == FS_FAT32)
TickTock	109:3e6f0e8fca0d	2944	disk_write(drv, tbl, b_part+6, 1);
TickTock	109:3e6f0e8fca0d	2945
TickTock	109:3e6f0e8fca0d	2946	/* Initialize FAT area */
TickTock	109:3e6f0e8fca0d	2947	for (m = 0; m < N_FATS; m++) {
TickTock	109:3e6f0e8fca0d	2948	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
TickTock	109:3e6f0e8fca0d	2949	if (fmt != FS_FAT32) {
TickTock	109:3e6f0e8fca0d	2950	n = (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
TickTock	109:3e6f0e8fca0d	2951	n \|= partition;
TickTock	109:3e6f0e8fca0d	2952	ST_DWORD(tbl, n); /* Reserve cluster #0-1 (FAT12/16) */
TickTock	109:3e6f0e8fca0d	2953	} else {
TickTock	109:3e6f0e8fca0d	2954	ST_DWORD(tbl+0, 0xFFFFFFF8); /* Reserve cluster #0-1 (FAT32) */
TickTock	109:3e6f0e8fca0d	2955	ST_DWORD(tbl+4, 0xFFFFFFFF);
TickTock	109:3e6f0e8fca0d	2956	ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
TickTock	109:3e6f0e8fca0d	2957	}
TickTock	109:3e6f0e8fca0d	2958	if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	2959	return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	2960	mem_set(tbl, 0, SS(fs)); /* Following FAT entries are filled by zero */
TickTock	109:3e6f0e8fca0d	2961	for (n = 1; n < n_fat; n++) {
TickTock	109:3e6f0e8fca0d	2962	if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	2963	return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	2964	}
TickTock	109:3e6f0e8fca0d	2965	}
TickTock	109:3e6f0e8fca0d	2966
TickTock	109:3e6f0e8fca0d	2967	/* Initialize Root directory */
TickTock	109:3e6f0e8fca0d	2968	m = (BYTE)((fmt == FS_FAT32) ? allocsize : n_dir);
TickTock	109:3e6f0e8fca0d	2969	do {
TickTock	109:3e6f0e8fca0d	2970	if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
TickTock	109:3e6f0e8fca0d	2971	return FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	2972	} while (--m);
TickTock	109:3e6f0e8fca0d	2973
TickTock	109:3e6f0e8fca0d	2974	/* Create FSInfo record if needed */
TickTock	109:3e6f0e8fca0d	2975	if (fmt == FS_FAT32) {
TickTock	109:3e6f0e8fca0d	2976	ST_WORD(tbl+BS_55AA, 0xAA55);
TickTock	109:3e6f0e8fca0d	2977	ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
TickTock	109:3e6f0e8fca0d	2978	ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
TickTock	109:3e6f0e8fca0d	2979	ST_DWORD(tbl+FSI_Free_Count, n_clst - 1);
TickTock	109:3e6f0e8fca0d	2980	ST_DWORD(tbl+FSI_Nxt_Free, 0xFFFFFFFF);
TickTock	109:3e6f0e8fca0d	2981	disk_write(drv, tbl, b_part+1, 1);
TickTock	109:3e6f0e8fca0d	2982	disk_write(drv, tbl, b_part+7, 1);
TickTock	109:3e6f0e8fca0d	2983	}
TickTock	109:3e6f0e8fca0d	2984
TickTock	109:3e6f0e8fca0d	2985	return (disk_ioctl(drv, CTRL_SYNC, (void*)NULL) == RES_OK) ? FR_OK : FR_DISK_ERR;
TickTock	109:3e6f0e8fca0d	2986	}
TickTock	109:3e6f0e8fca0d	2987
TickTock	109:3e6f0e8fca0d	2988	#endif /* _USE_MKFS && !_FS_READONLY */
TickTock	109:3e6f0e8fca0d	2989
TickTock	109:3e6f0e8fca0d	2990
TickTock	109:3e6f0e8fca0d	2991
TickTock	109:3e6f0e8fca0d	2992
TickTock	109:3e6f0e8fca0d	2993	#if _USE_STRFUNC
TickTock	109:3e6f0e8fca0d	2994	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2995	/* Get a string from the file */
TickTock	109:3e6f0e8fca0d	2996	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	2997	char* f_gets (
TickTock	109:3e6f0e8fca0d	2998	char* buff, /* Pointer to the string buffer to read */
TickTock	109:3e6f0e8fca0d	2999	int len, /* Size of string buffer */
TickTock	109:3e6f0e8fca0d	3000	FIL* fil /* Pointer to the file object */
TickTock	109:3e6f0e8fca0d	3001	)
TickTock	109:3e6f0e8fca0d	3002	{
TickTock	109:3e6f0e8fca0d	3003	int i = 0;
TickTock	109:3e6f0e8fca0d	3004	char *p = buff;
TickTock	109:3e6f0e8fca0d	3005	UINT rc;
TickTock	109:3e6f0e8fca0d	3006
TickTock	109:3e6f0e8fca0d	3007
TickTock	109:3e6f0e8fca0d	3008	while (i < len - 1) { /* Read bytes until buffer gets filled */
TickTock	109:3e6f0e8fca0d	3009	f_read(fil, p, 1, &rc);
TickTock	109:3e6f0e8fca0d	3010	if (rc != 1) break; /* Break when no data to read */
TickTock	109:3e6f0e8fca0d	3011	#if _USE_STRFUNC >= 2
TickTock	109:3e6f0e8fca0d	3012	if (p == '\r') continue; / Strip '\r' */
TickTock	109:3e6f0e8fca0d	3013	#endif
TickTock	109:3e6f0e8fca0d	3014	i++;
TickTock	109:3e6f0e8fca0d	3015	if (p++ == '\n') break; / Break when reached end of line */
TickTock	109:3e6f0e8fca0d	3016	}
TickTock	109:3e6f0e8fca0d	3017	*p = 0;
TickTock	109:3e6f0e8fca0d	3018	return i ? buff : NULL; /* When no data read (eof or error), return with error. */
TickTock	109:3e6f0e8fca0d	3019	}
TickTock	109:3e6f0e8fca0d	3020
TickTock	109:3e6f0e8fca0d	3021
TickTock	109:3e6f0e8fca0d	3022
TickTock	109:3e6f0e8fca0d	3023	#if !_FS_READONLY
TickTock	109:3e6f0e8fca0d	3024	#include <stdarg.h>
TickTock	109:3e6f0e8fca0d	3025	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	3026	/* Put a character to the file */
TickTock	109:3e6f0e8fca0d	3027	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	3028	int f_putc (
TickTock	109:3e6f0e8fca0d	3029	int chr, /* A character to be output */
TickTock	109:3e6f0e8fca0d	3030	FIL* fil /* Ponter to the file object */
TickTock	109:3e6f0e8fca0d	3031	)
TickTock	109:3e6f0e8fca0d	3032	{
TickTock	109:3e6f0e8fca0d	3033	UINT bw;
TickTock	109:3e6f0e8fca0d	3034	char c;
TickTock	109:3e6f0e8fca0d	3035
TickTock	109:3e6f0e8fca0d	3036
TickTock	109:3e6f0e8fca0d	3037	#if _USE_STRFUNC >= 2
TickTock	109:3e6f0e8fca0d	3038	if (chr == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */
TickTock	109:3e6f0e8fca0d	3039	#endif
TickTock	109:3e6f0e8fca0d	3040	if (!fil) { /* Special value may be used to switch the destination to any other device */
TickTock	109:3e6f0e8fca0d	3041	/* put_console(chr); */
TickTock	109:3e6f0e8fca0d	3042	return chr;
TickTock	109:3e6f0e8fca0d	3043	}
TickTock	109:3e6f0e8fca0d	3044	c = (char)chr;
TickTock	109:3e6f0e8fca0d	3045	f_write(fil, &c, 1, &bw); /* Write a byte to the file */
TickTock	109:3e6f0e8fca0d	3046	return bw ? chr : EOF; /* Return the result */
TickTock	109:3e6f0e8fca0d	3047	}
TickTock	109:3e6f0e8fca0d	3048
TickTock	109:3e6f0e8fca0d	3049
TickTock	109:3e6f0e8fca0d	3050
TickTock	109:3e6f0e8fca0d	3051
TickTock	109:3e6f0e8fca0d	3052	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	3053	/* Put a string to the file */
TickTock	109:3e6f0e8fca0d	3054	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	3055	int f_puts (
TickTock	109:3e6f0e8fca0d	3056	const char* str, /* Pointer to the string to be output */
TickTock	109:3e6f0e8fca0d	3057	FIL* fil /* Pointer to the file object */
TickTock	109:3e6f0e8fca0d	3058	)
TickTock	109:3e6f0e8fca0d	3059	{
TickTock	109:3e6f0e8fca0d	3060	int n;
TickTock	109:3e6f0e8fca0d	3061
TickTock	109:3e6f0e8fca0d	3062
TickTock	109:3e6f0e8fca0d	3063	for (n = 0; *str; str++, n++) {
TickTock	109:3e6f0e8fca0d	3064	if (f_putc(*str, fil) == EOF) return EOF;
TickTock	109:3e6f0e8fca0d	3065	}
TickTock	109:3e6f0e8fca0d	3066	return n;
TickTock	109:3e6f0e8fca0d	3067	}
TickTock	109:3e6f0e8fca0d	3068
TickTock	109:3e6f0e8fca0d	3069
TickTock	109:3e6f0e8fca0d	3070
TickTock	109:3e6f0e8fca0d	3071
TickTock	109:3e6f0e8fca0d	3072	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	3073	/* Put a formatted string to the file */
TickTock	109:3e6f0e8fca0d	3074	/-----------------------------------------------------------------------/
TickTock	109:3e6f0e8fca0d	3075	int f_printf (
TickTock	109:3e6f0e8fca0d	3076	FIL* fil, /* Pointer to the file object */
TickTock	109:3e6f0e8fca0d	3077	const char* str, /* Pointer to the format string */
TickTock	109:3e6f0e8fca0d	3078	... /* Optional arguments... */
TickTock	109:3e6f0e8fca0d	3079	)
TickTock	109:3e6f0e8fca0d	3080	{
TickTock	109:3e6f0e8fca0d	3081	va_list arp;
TickTock	109:3e6f0e8fca0d	3082	UCHAR c, f, r;
TickTock	109:3e6f0e8fca0d	3083	ULONG val;
TickTock	109:3e6f0e8fca0d	3084	char s[16];
TickTock	109:3e6f0e8fca0d	3085	int i, w, res, cc;
TickTock	109:3e6f0e8fca0d	3086
TickTock	109:3e6f0e8fca0d	3087
TickTock	109:3e6f0e8fca0d	3088	va_start(arp, str);
TickTock	109:3e6f0e8fca0d	3089
TickTock	109:3e6f0e8fca0d	3090	for (cc = res = 0; cc != EOF; res += cc) {
TickTock	109:3e6f0e8fca0d	3091	c = *str++;
TickTock	109:3e6f0e8fca0d	3092	if (c == 0) break; /* End of string */
TickTock	109:3e6f0e8fca0d	3093	if (c != '%') { /* Non escape cahracter */
TickTock	109:3e6f0e8fca0d	3094	cc = f_putc(c, fil);
TickTock	109:3e6f0e8fca0d	3095	if (cc != EOF) cc = 1;
TickTock	109:3e6f0e8fca0d	3096	continue;
TickTock	109:3e6f0e8fca0d	3097	}
TickTock	109:3e6f0e8fca0d	3098	w = f = 0;
TickTock	109:3e6f0e8fca0d	3099	c = *str++;
TickTock	109:3e6f0e8fca0d	3100	if (c == '0') { /* Flag: '0' padding */
TickTock	109:3e6f0e8fca0d	3101	f = 1; c = *str++;
TickTock	109:3e6f0e8fca0d	3102	}
TickTock	109:3e6f0e8fca0d	3103	while (c >= '0' && c <= '9') { /* Precision */
TickTock	109:3e6f0e8fca0d	3104	w = w * 10 + (c - '0');
TickTock	109:3e6f0e8fca0d	3105	c = *str++;
TickTock	109:3e6f0e8fca0d	3106	}
TickTock	109:3e6f0e8fca0d	3107	if (c == 'l') { /* Prefix: Size is long int */
TickTock	109:3e6f0e8fca0d	3108	f \|= 2; c = *str++;
TickTock	109:3e6f0e8fca0d	3109	}
TickTock	109:3e6f0e8fca0d	3110	if (c == 's') { /* Type is string */
TickTock	109:3e6f0e8fca0d	3111	cc = f_puts(va_arg(arp, char*), fil);
TickTock	109:3e6f0e8fca0d	3112	continue;
TickTock	109:3e6f0e8fca0d	3113	}
TickTock	109:3e6f0e8fca0d	3114	if (c == 'c') { /* Type is character */
TickTock	109:3e6f0e8fca0d	3115	cc = f_putc(va_arg(arp, int), fil);
TickTock	109:3e6f0e8fca0d	3116	if (cc != EOF) cc = 1;
TickTock	109:3e6f0e8fca0d	3117	continue;
TickTock	109:3e6f0e8fca0d	3118	}
TickTock	109:3e6f0e8fca0d	3119	r = 0;
TickTock	109:3e6f0e8fca0d	3120	if (c == 'd') r = 10; /* Type is signed decimal */
TickTock	109:3e6f0e8fca0d	3121	if (c == 'u') r = 10; /* Type is unsigned decimal */
TickTock	109:3e6f0e8fca0d	3122	if (c == 'X') r = 16; /* Type is unsigned hexdecimal */
TickTock	109:3e6f0e8fca0d	3123	if (r == 0) break; /* Unknown type */
TickTock	109:3e6f0e8fca0d	3124	if (f & 2) { /* Get the value */
TickTock	109:3e6f0e8fca0d	3125	val = (ULONG)va_arg(arp, long);
TickTock	109:3e6f0e8fca0d	3126	} else {
TickTock	109:3e6f0e8fca0d	3127	val = (c == 'd') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int);
TickTock	109:3e6f0e8fca0d	3128	}
TickTock	109:3e6f0e8fca0d	3129	/* Put numeral string */
TickTock	109:3e6f0e8fca0d	3130	if (c == 'd') {
TickTock	109:3e6f0e8fca0d	3131	if (val & 0x80000000) {
TickTock	109:3e6f0e8fca0d	3132	val = 0 - val;
TickTock	109:3e6f0e8fca0d	3133	f \|= 4;
TickTock	109:3e6f0e8fca0d	3134	}
TickTock	109:3e6f0e8fca0d	3135	}
TickTock	109:3e6f0e8fca0d	3136	i = sizeof(s) - 1; s[i] = 0;
TickTock	109:3e6f0e8fca0d	3137	do {
TickTock	109:3e6f0e8fca0d	3138	c = (UCHAR)(val % r + '0');
TickTock	109:3e6f0e8fca0d	3139	if (c > '9') c += 7;
TickTock	109:3e6f0e8fca0d	3140	s[--i] = c;
TickTock	109:3e6f0e8fca0d	3141	val /= r;
TickTock	109:3e6f0e8fca0d	3142	} while (i && val);
TickTock	109:3e6f0e8fca0d	3143	if (i && (f & 4)) s[--i] = '-';
TickTock	109:3e6f0e8fca0d	3144	w = sizeof(s) - 1 - w;
TickTock	109:3e6f0e8fca0d	3145	while (i && i > w) s[--i] = (f & 1) ? '0' : ' ';
TickTock	109:3e6f0e8fca0d	3146	cc = f_puts(&s[i], fil);
TickTock	109:3e6f0e8fca0d	3147	}
TickTock	109:3e6f0e8fca0d	3148
TickTock	109:3e6f0e8fca0d	3149	va_end(arp);
TickTock	109:3e6f0e8fca0d	3150	return (cc == EOF) ? cc : res;
TickTock	109:3e6f0e8fca0d	3151	}
TickTock	109:3e6f0e8fca0d	3152
TickTock	109:3e6f0e8fca0d	3153	#endif /* !_FS_READONLY */
TickTock	109:3e6f0e8fca0d	3154	#endif /* _USE_STRFUNC */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	12 May 2014
Imports:	9
Forks:	1
Commits:	190
Dependents:	0
Dependencies:	4
Followers:	0

CHAN_FS/ff.cpp@189:439e113fec1c, 2014-05-17 (annotated)

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