SDFileSystemDMA - first 2016/02 SDFileSystemDMA inherited from Offi…

Users » mimi3 » Code » SDFileSystemDMA

first 2016/02 SDFileSystemDMA inherited from Official SDFileSystem.

Dependents: SDFileSystemDMA-test DmdFullRGB_0_1

SDFileSystemDMA is enhanced SDFileSystem library for STM32 micros by using DMA functionality.
Max read transfer rate reaches over 2MByte/sec at 24MHz SPI clock if enough read buffer size is set.
Even though minimum read buffer size (512Byte) is set, read transfer rate will reach over 1MByte/sec at 24MHz SPI Clock.
( but depends on the ability of each SD card)

Test program is here.
https://developer.mbed.org/users/mimi3/code/SDFileSystemDMA-test/

/media/uploads/mimi3/sdfilesystemdma-speed-test3-read-buffer-512byte.png

Supported SPI port is shown below table.

(v): Verified. It works well.
(w): Probably it will work well. (not tested)
(c): Only compiled. (not tested)
(f): Over flash.
(r): Only read mode. (when _FS_READONLY==1)
(u) Under construction
(z): Dose not work.

Caution

If your board has SRAM less than or equal to 8KB, the buffer size must be set to 512 Bytes.

Supported Boards:
Cortex-M0

Board	SRAM	SPI1	SPI2	SPI3
NUCLEO-F030R8	8KB	(v)
DISCO-F051R8	8KB	(w)
~~NUCLEO-F031K6~~	4KB	(f)
NUCLEO-F042K6	6KB	(r)
NUCLEO-F070RB	16KB	(w)
NUCLEO-F072RB	16KB	(w)
NUCLEO-F091RC	32KB	(c)

Cortex-L0

Board	SRAM	SPI1	SPI2	SPI3
DISCO-L053C8	8KB	(c)
NUCLEO-L053R8	8KB	(c)
NUCLEO-L073RZ	20KB	(c)

Cortex-M3

Board	SRAM	SPI1	SPI2	SPI3
DISCO-F100RB	8KB	(v)	(v)	-
BLUEPILL-F103CB	20KB	(w)	(w)	-
NUCLEO-F103RB	20KB	(v)	(v)	-
NUCLEO-L152RE	80KB	(v)	(w)	-
MOTE-L152RC	32KB	(w)	(w)	-

Cortex-M4
F3

Board	SRAM	SPI1	SPI2	SPI3
DISCO-F303VC	40KB	-	(v)	(v)
NUCLEO-F303RE	64KB	(w)	(w)	(w)
NUCLEO-F302R8	16KB	-	-	(c)
NUCLEO-F303K8	12KB	(c)	-	-
DISCO-F334C8	12KB	(c)	-	-
NUCLEO-F334R8	12KB	(c)	-	-

Board	SPI1	SPI2	SPI3
ELMO-F411RE	(w)	-	(w)
MTS-MDOT-F411RE	(u)	-	(u)
MTS-DRAGONFLY-F411RE	(w)	-	(w)
NUCLEO-F411RE	(v)	-	(v)
NUCLEO-F401RE	(w)	-	(w)
MTS-MDOT-F405RG	(u)	-	(u)
NUCLEO-F410RB	(c)	-	(c)
NUCLEO-F446RE	(c)	-	(c)
NUCLEO-F429ZI	(c)	-	(c)
B96B-F446VE	(c)	-	(c)
NUCLEO-F446ZE	(c)	-	(c)
DISCO-F429ZI	(u)	-	(u)
DISCO-F469NI	(c)	-	(c)

Information

This library is set to use "short file name" in SDFileSystemDMA/FATFileSystem/ChaN/ffconf.h . ( _USE_LFN=0)
You can change this option to _USE_LFN=1 .

FATFileSystem/ChaN/ff.cpp@38:7077795dbf81, 2017-01-22 (annotated)

Committer:: mimi3
Date:: Sun Jan 22 23:13:11 2017 +0900
Revision:: 38:7077795dbf81
Parent:: 10:b48d3ace55db

change: table.md

Who changed what in which revision?

User	Revision	Line number	New contents of line
mimi3	10:b48d3ace55db	1	/*----------------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2	/ FatFs - FAT file system module R0.11a (C)ChaN, 2015 /
mimi3	10:b48d3ace55db	3	/-----------------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4	/ FatFs module is a free software that opened under license policy of
mimi3	10:b48d3ace55db	5	/ following conditions.
mimi3	10:b48d3ace55db	6	/
mimi3	10:b48d3ace55db	7	/ Copyright (C) 2015, ChaN, all right reserved.
mimi3	10:b48d3ace55db	8	/
mimi3	10:b48d3ace55db	9	/ 1. Redistributions of source code must retain the above copyright notice,
mimi3	10:b48d3ace55db	10	/ this condition and the following disclaimer.
mimi3	10:b48d3ace55db	11	/
mimi3	10:b48d3ace55db	12	/ This software is provided by the copyright holder and contributors "AS IS"
mimi3	10:b48d3ace55db	13	/ and any warranties related to this software are DISCLAIMED.
mimi3	10:b48d3ace55db	14	/ The copyright owner or contributors be NOT LIABLE for any damages caused
mimi3	10:b48d3ace55db	15	/ by use of this software.
mimi3	10:b48d3ace55db	16	/----------------------------------------------------------------------------*/
mimi3	10:b48d3ace55db	17
mimi3	10:b48d3ace55db	18
mimi3	10:b48d3ace55db	19	#include "ff.h" /* Declarations of FatFs API */
mimi3	10:b48d3ace55db	20	#include "diskio.h" /* Declarations of disk I/O functions */
mimi3	10:b48d3ace55db	21
mimi3	10:b48d3ace55db	22
mimi3	10:b48d3ace55db	23	/*--------------------------------------------------------------------------
mimi3	10:b48d3ace55db	24
mimi3	10:b48d3ace55db	25	Module Private Definitions
mimi3	10:b48d3ace55db	26
mimi3	10:b48d3ace55db	27	---------------------------------------------------------------------------*/
mimi3	10:b48d3ace55db	28
mimi3	10:b48d3ace55db	29	#if _FATFS != 64180 /* Revision ID */
mimi3	10:b48d3ace55db	30	#error Wrong include file (ff.h).
mimi3	10:b48d3ace55db	31	#endif
mimi3	10:b48d3ace55db	32
mimi3	10:b48d3ace55db	33
mimi3	10:b48d3ace55db	34	/* Reentrancy related */
mimi3	10:b48d3ace55db	35	#if _FS_REENTRANT
mimi3	10:b48d3ace55db	36	#if _USE_LFN == 1
mimi3	10:b48d3ace55db	37	#error Static LFN work area cannot be used at thread-safe configuration
mimi3	10:b48d3ace55db	38	#endif
mimi3	10:b48d3ace55db	39	#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
mimi3	10:b48d3ace55db	40	#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
mimi3	10:b48d3ace55db	41	#else
mimi3	10:b48d3ace55db	42	#define ENTER_FF(fs)
mimi3	10:b48d3ace55db	43	#define LEAVE_FF(fs, res) return res
mimi3	10:b48d3ace55db	44	#endif
mimi3	10:b48d3ace55db	45
mimi3	10:b48d3ace55db	46	#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
mimi3	10:b48d3ace55db	47
mimi3	10:b48d3ace55db	48
mimi3	10:b48d3ace55db	49	/* Definitions of sector size */
mimi3	10:b48d3ace55db	50	#if (_MAX_SS < _MIN_SS) \|\| (_MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096) \|\| (_MIN_SS != 512 && _MIN_SS != 1024 && _MIN_SS != 2048 && _MIN_SS != 4096)
mimi3	10:b48d3ace55db	51	#error Wrong sector size configuration
mimi3	10:b48d3ace55db	52	#endif
mimi3	10:b48d3ace55db	53	#if _MAX_SS == _MIN_SS
mimi3	10:b48d3ace55db	54	#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
mimi3	10:b48d3ace55db	55	#else
mimi3	10:b48d3ace55db	56	#define SS(fs) ((fs)->ssize) /* Variable sector size */
mimi3	10:b48d3ace55db	57	#endif
mimi3	10:b48d3ace55db	58
mimi3	10:b48d3ace55db	59
mimi3	10:b48d3ace55db	60	/* Timestamp feature */
mimi3	10:b48d3ace55db	61	#if _FS_NORTC == 1
mimi3	10:b48d3ace55db	62	#if _NORTC_YEAR < 1980 \|\| _NORTC_YEAR > 2107 \|\| _NORTC_MON < 1 \|\| _NORTC_MON > 12 \|\| _NORTC_MDAY < 1 \|\| _NORTC_MDAY > 31
mimi3	10:b48d3ace55db	63	#error Invalid _FS_NORTC settings
mimi3	10:b48d3ace55db	64	#endif
mimi3	10:b48d3ace55db	65	#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 \| (DWORD)_NORTC_MON << 21 \| (DWORD)_NORTC_MDAY << 16)
mimi3	10:b48d3ace55db	66	#else
mimi3	10:b48d3ace55db	67	#define GET_FATTIME() get_fattime()
mimi3	10:b48d3ace55db	68	#endif
mimi3	10:b48d3ace55db	69
mimi3	10:b48d3ace55db	70
mimi3	10:b48d3ace55db	71	/* File access control feature */
mimi3	10:b48d3ace55db	72	#if _FS_LOCK
mimi3	10:b48d3ace55db	73	#if _FS_READONLY
mimi3	10:b48d3ace55db	74	#error _FS_LOCK must be 0 at read-only configuration
mimi3	10:b48d3ace55db	75	#endif
mimi3	10:b48d3ace55db	76	typedef struct {
mimi3	10:b48d3ace55db	77	FATFS fs; / Object ID 1, volume (NULL:blank entry) */
mimi3	10:b48d3ace55db	78	DWORD clu; /* Object ID 2, directory (0:root) */
mimi3	10:b48d3ace55db	79	WORD idx; /* Object ID 3, directory index */
mimi3	10:b48d3ace55db	80	WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
mimi3	10:b48d3ace55db	81	} FILESEM;
mimi3	10:b48d3ace55db	82	#endif
mimi3	10:b48d3ace55db	83
mimi3	10:b48d3ace55db	84
mimi3	10:b48d3ace55db	85
mimi3	10:b48d3ace55db	86	/* DBCS code ranges and SBCS upper conversion tables */
mimi3	10:b48d3ace55db	87
mimi3	10:b48d3ace55db	88	#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
mimi3	10:b48d3ace55db	89	#define _DF1S 0x81 /* DBC 1st byte range 1 start */
mimi3	10:b48d3ace55db	90	#define _DF1E 0x9F /* DBC 1st byte range 1 end */
mimi3	10:b48d3ace55db	91	#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
mimi3	10:b48d3ace55db	92	#define _DF2E 0xFC /* DBC 1st byte range 2 end */
mimi3	10:b48d3ace55db	93	#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
mimi3	10:b48d3ace55db	94	#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
mimi3	10:b48d3ace55db	95	#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
mimi3	10:b48d3ace55db	96	#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
mimi3	10:b48d3ace55db	97
mimi3	10:b48d3ace55db	98	#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
mimi3	10:b48d3ace55db	99	#define _DF1S 0x81
mimi3	10:b48d3ace55db	100	#define _DF1E 0xFE
mimi3	10:b48d3ace55db	101	#define _DS1S 0x40
mimi3	10:b48d3ace55db	102	#define _DS1E 0x7E
mimi3	10:b48d3ace55db	103	#define _DS2S 0x80
mimi3	10:b48d3ace55db	104	#define _DS2E 0xFE
mimi3	10:b48d3ace55db	105
mimi3	10:b48d3ace55db	106	#elif _CODE_PAGE == 949 /* Korean */
mimi3	10:b48d3ace55db	107	#define _DF1S 0x81
mimi3	10:b48d3ace55db	108	#define _DF1E 0xFE
mimi3	10:b48d3ace55db	109	#define _DS1S 0x41
mimi3	10:b48d3ace55db	110	#define _DS1E 0x5A
mimi3	10:b48d3ace55db	111	#define _DS2S 0x61
mimi3	10:b48d3ace55db	112	#define _DS2E 0x7A
mimi3	10:b48d3ace55db	113	#define _DS3S 0x81
mimi3	10:b48d3ace55db	114	#define _DS3E 0xFE
mimi3	10:b48d3ace55db	115
mimi3	10:b48d3ace55db	116	#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
mimi3	10:b48d3ace55db	117	#define _DF1S 0x81
mimi3	10:b48d3ace55db	118	#define _DF1E 0xFE
mimi3	10:b48d3ace55db	119	#define _DS1S 0x40
mimi3	10:b48d3ace55db	120	#define _DS1E 0x7E
mimi3	10:b48d3ace55db	121	#define _DS2S 0xA1
mimi3	10:b48d3ace55db	122	#define _DS2E 0xFE
mimi3	10:b48d3ace55db	123
mimi3	10:b48d3ace55db	124	#elif _CODE_PAGE == 437 /* U.S. */
mimi3	10:b48d3ace55db	125	#define _DF1S 0
mimi3	10:b48d3ace55db	126	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mimi3	10:b48d3ace55db	127	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	128	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	129	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	130	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	131	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	132	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	133	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	134
mimi3	10:b48d3ace55db	135	#elif _CODE_PAGE == 720 /* Arabic */
mimi3	10:b48d3ace55db	136	#define _DF1S 0
mimi3	10:b48d3ace55db	137	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	138	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	139	0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	140	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	141	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	142	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	143	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	144	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	145
mimi3	10:b48d3ace55db	146	#elif _CODE_PAGE == 737 /* Greek */
mimi3	10:b48d3ace55db	147	#define _DF1S 0
mimi3	10:b48d3ace55db	148	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	149	0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
mimi3	10:b48d3ace55db	150	0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \
mimi3	10:b48d3ace55db	151	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	152	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	153	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	154	0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	155	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	156
mimi3	10:b48d3ace55db	157	#elif _CODE_PAGE == 771 /* KBL */
mimi3	10:b48d3ace55db	158	#define _DF1S 0
mimi3	10:b48d3ace55db	159	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	160	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	161	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	162	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	163	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	164	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \
mimi3	10:b48d3ace55db	165	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	166	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
mimi3	10:b48d3ace55db	167
mimi3	10:b48d3ace55db	168	#elif _CODE_PAGE == 775 /* Baltic */
mimi3	10:b48d3ace55db	169	#define _DF1S 0
mimi3	10:b48d3ace55db	170	#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	171	0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	172	0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	173	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	174	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	175	0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	176	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	177	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	178
mimi3	10:b48d3ace55db	179	#elif _CODE_PAGE == 850 /* Latin 1 */
mimi3	10:b48d3ace55db	180	#define _DF1S 0
mimi3	10:b48d3ace55db	181	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
mimi3	10:b48d3ace55db	182	0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
mimi3	10:b48d3ace55db	183	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	184	0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	185	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	186	0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
mimi3	10:b48d3ace55db	187	0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
mimi3	10:b48d3ace55db	188	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	189
mimi3	10:b48d3ace55db	190	#elif _CODE_PAGE == 852 /* Latin 2 */
mimi3	10:b48d3ace55db	191	#define _DF1S 0
mimi3	10:b48d3ace55db	192	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	193	0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \
mimi3	10:b48d3ace55db	194	0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \
mimi3	10:b48d3ace55db	195	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
mimi3	10:b48d3ace55db	196	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	197	0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	198	0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \
mimi3	10:b48d3ace55db	199	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
mimi3	10:b48d3ace55db	200
mimi3	10:b48d3ace55db	201	#elif _CODE_PAGE == 855 /* Cyrillic */
mimi3	10:b48d3ace55db	202	#define _DF1S 0
mimi3	10:b48d3ace55db	203	#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \
mimi3	10:b48d3ace55db	204	0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
mimi3	10:b48d3ace55db	205	0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	206	0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
mimi3	10:b48d3ace55db	207	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	208	0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
mimi3	10:b48d3ace55db	209	0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \
mimi3	10:b48d3ace55db	210	0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	211
mimi3	10:b48d3ace55db	212	#elif _CODE_PAGE == 857 /* Turkish */
mimi3	10:b48d3ace55db	213	#define _DF1S 0
mimi3	10:b48d3ace55db	214	#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
mimi3	10:b48d3ace55db	215	0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
mimi3	10:b48d3ace55db	216	0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	217	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	218	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	219	0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	220	0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	221	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	222
mimi3	10:b48d3ace55db	223	#elif _CODE_PAGE == 860 /* Portuguese */
mimi3	10:b48d3ace55db	224	#define _DF1S 0
mimi3	10:b48d3ace55db	225	#define _EXCVT {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
mimi3	10:b48d3ace55db	226	0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	227	0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	228	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	229	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	230	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	231	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	232	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	233
mimi3	10:b48d3ace55db	234	#elif _CODE_PAGE == 861 /* Icelandic */
mimi3	10:b48d3ace55db	235	#define _DF1S 0
mimi3	10:b48d3ace55db	236	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	237	0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	238	0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	239	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	240	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	241	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	242	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	243	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	244
mimi3	10:b48d3ace55db	245	#elif _CODE_PAGE == 862 /* Hebrew */
mimi3	10:b48d3ace55db	246	#define _DF1S 0
mimi3	10:b48d3ace55db	247	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	248	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	249	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	250	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	251	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	252	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	253	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	254	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	255
mimi3	10:b48d3ace55db	256	#elif _CODE_PAGE == 863 /* Canadian-French */
mimi3	10:b48d3ace55db	257	#define _DF1S 0
mimi3	10:b48d3ace55db	258	#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
mimi3	10:b48d3ace55db	259	0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
mimi3	10:b48d3ace55db	260	0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	261	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	262	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	263	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	264	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	265	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	266
mimi3	10:b48d3ace55db	267	#elif _CODE_PAGE == 864 /* Arabic */
mimi3	10:b48d3ace55db	268	#define _DF1S 0
mimi3	10:b48d3ace55db	269	#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mimi3	10:b48d3ace55db	270	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	271	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	272	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	273	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	274	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	275	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	276	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	277
mimi3	10:b48d3ace55db	278	#elif _CODE_PAGE == 865 /* Nordic */
mimi3	10:b48d3ace55db	279	#define _DF1S 0
mimi3	10:b48d3ace55db	280	#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
mimi3	10:b48d3ace55db	281	0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	282	0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	283	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	284	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	285	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	286	0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
mimi3	10:b48d3ace55db	287	0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	288
mimi3	10:b48d3ace55db	289	#elif _CODE_PAGE == 866 /* Russian */
mimi3	10:b48d3ace55db	290	#define _DF1S 0
mimi3	10:b48d3ace55db	291	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	292	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	293	0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	294	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	295	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	296	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
mimi3	10:b48d3ace55db	297	0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
mimi3	10:b48d3ace55db	298	0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
mimi3	10:b48d3ace55db	299
mimi3	10:b48d3ace55db	300	#elif _CODE_PAGE == 869 /* Greek 2 */
mimi3	10:b48d3ace55db	301	#define _DF1S 0
mimi3	10:b48d3ace55db	302	#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
mimi3	10:b48d3ace55db	303	0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \
mimi3	10:b48d3ace55db	304	0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
mimi3	10:b48d3ace55db	305	0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
mimi3	10:b48d3ace55db	306	0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
mimi3	10:b48d3ace55db	307	0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
mimi3	10:b48d3ace55db	308	0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
mimi3	10:b48d3ace55db	309	0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
mimi3	10:b48d3ace55db	310
mimi3	10:b48d3ace55db	311	#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
mimi3	10:b48d3ace55db	312	#if _USE_LFN
mimi3	10:b48d3ace55db	313	#error Cannot use LFN feature without valid code page.
mimi3	10:b48d3ace55db	314	#endif
mimi3	10:b48d3ace55db	315	#define _DF1S 0
mimi3	10:b48d3ace55db	316
mimi3	10:b48d3ace55db	317	#else
mimi3	10:b48d3ace55db	318	#error Unknown code page
mimi3	10:b48d3ace55db	319
mimi3	10:b48d3ace55db	320	#endif
mimi3	10:b48d3ace55db	321
mimi3	10:b48d3ace55db	322
mimi3	10:b48d3ace55db	323	/* Character code support macros */
mimi3	10:b48d3ace55db	324	#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
mimi3	10:b48d3ace55db	325	#define IsLower(c) (((c)>='a')&&((c)<='z'))
mimi3	10:b48d3ace55db	326	#define IsDigit(c) (((c)>='0')&&((c)<='9'))
mimi3	10:b48d3ace55db	327
mimi3	10:b48d3ace55db	328	#if _DF1S /* Code page is DBCS */
mimi3	10:b48d3ace55db	329
mimi3	10:b48d3ace55db	330	#ifdef _DF2S /* Two 1st byte areas */
mimi3	10:b48d3ace55db	331	#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) \|\| ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
mimi3	10:b48d3ace55db	332	#else /* One 1st byte area */
mimi3	10:b48d3ace55db	333	#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
mimi3	10:b48d3ace55db	334	#endif
mimi3	10:b48d3ace55db	335
mimi3	10:b48d3ace55db	336	#ifdef _DS3S /* Three 2nd byte areas */
mimi3	10:b48d3ace55db	337	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) \|\| ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
mimi3	10:b48d3ace55db	338	#else /* Two 2nd byte areas */
mimi3	10:b48d3ace55db	339	#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) \|\| ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
mimi3	10:b48d3ace55db	340	#endif
mimi3	10:b48d3ace55db	341
mimi3	10:b48d3ace55db	342	#else /* Code page is SBCS */
mimi3	10:b48d3ace55db	343
mimi3	10:b48d3ace55db	344	#define IsDBCS1(c) 0
mimi3	10:b48d3ace55db	345	#define IsDBCS2(c) 0
mimi3	10:b48d3ace55db	346
mimi3	10:b48d3ace55db	347	#endif /* _DF1S */
mimi3	10:b48d3ace55db	348
mimi3	10:b48d3ace55db	349
mimi3	10:b48d3ace55db	350	/* Name status flags */
mimi3	10:b48d3ace55db	351	#define NSFLAG 11 /* Index of name status byte in fn[] */
mimi3	10:b48d3ace55db	352	#define NS_LOSS 0x01 /* Out of 8.3 format */
mimi3	10:b48d3ace55db	353	#define NS_LFN 0x02 /* Force to create LFN entry */
mimi3	10:b48d3ace55db	354	#define NS_LAST 0x04 /* Last segment */
mimi3	10:b48d3ace55db	355	#define NS_BODY 0x08 /* Lower case flag (body) */
mimi3	10:b48d3ace55db	356	#define NS_EXT 0x10 /* Lower case flag (ext) */
mimi3	10:b48d3ace55db	357	#define NS_DOT 0x20 /* Dot entry */
mimi3	10:b48d3ace55db	358
mimi3	10:b48d3ace55db	359
mimi3	10:b48d3ace55db	360	/* FAT sub-type boundaries (Differ from specs but correct for real DOS/Windows) */
mimi3	10:b48d3ace55db	361	#define MIN_FAT16 4086U /* Minimum number of clusters of FAT16 */
mimi3	10:b48d3ace55db	362	#define MIN_FAT32 65526U /* Minimum number of clusters of FAT32 */
mimi3	10:b48d3ace55db	363
mimi3	10:b48d3ace55db	364
mimi3	10:b48d3ace55db	365	/* FatFs refers the members in the FAT structures as byte array instead of
mimi3	10:b48d3ace55db	366	/ structure members because the structure is not binary compatible between
mimi3	10:b48d3ace55db	367	/ different platforms */
mimi3	10:b48d3ace55db	368
mimi3	10:b48d3ace55db	369	#define BS_jmpBoot 0 /* x86 jump instruction (3) */
mimi3	10:b48d3ace55db	370	#define BS_OEMName 3 /* OEM name (8) */
mimi3	10:b48d3ace55db	371	#define BPB_BytsPerSec 11 /* Sector size [byte] (2) */
mimi3	10:b48d3ace55db	372	#define BPB_SecPerClus 13 /* Cluster size [sector] (1) */
mimi3	10:b48d3ace55db	373	#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (2) */
mimi3	10:b48d3ace55db	374	#define BPB_NumFATs 16 /* Number of FAT copies (1) */
mimi3	10:b48d3ace55db	375	#define BPB_RootEntCnt 17 /* Number of root directory entries for FAT12/16 (2) */
mimi3	10:b48d3ace55db	376	#define BPB_TotSec16 19 /* Volume size [sector] (2) */
mimi3	10:b48d3ace55db	377	#define BPB_Media 21 /* Media descriptor (1) */
mimi3	10:b48d3ace55db	378	#define BPB_FATSz16 22 /* FAT size [sector] (2) */
mimi3	10:b48d3ace55db	379	#define BPB_SecPerTrk 24 /* Track size [sector] (2) */
mimi3	10:b48d3ace55db	380	#define BPB_NumHeads 26 /* Number of heads (2) */
mimi3	10:b48d3ace55db	381	#define BPB_HiddSec 28 /* Number of special hidden sectors (4) */
mimi3	10:b48d3ace55db	382	#define BPB_TotSec32 32 /* Volume size [sector] (4) */
mimi3	10:b48d3ace55db	383	#define BS_DrvNum 36 /* Physical drive number (1) */
mimi3	10:b48d3ace55db	384	#define BS_NTres 37 /* Error flag (1) */
mimi3	10:b48d3ace55db	385	#define BS_BootSig 38 /* Extended boot signature (1) */
mimi3	10:b48d3ace55db	386	#define BS_VolID 39 /* Volume serial number (4) */
mimi3	10:b48d3ace55db	387	#define BS_VolLab 43 /* Volume label (8) */
mimi3	10:b48d3ace55db	388	#define BS_FilSysType 54 /* File system type (1) */
mimi3	10:b48d3ace55db	389	#define BPB_FATSz32 36 /* FAT size [sector] (4) */
mimi3	10:b48d3ace55db	390	#define BPB_ExtFlags 40 /* Extended flags (2) */
mimi3	10:b48d3ace55db	391	#define BPB_FSVer 42 /* File system version (2) */
mimi3	10:b48d3ace55db	392	#define BPB_RootClus 44 /* Root directory first cluster (4) */
mimi3	10:b48d3ace55db	393	#define BPB_FSInfo 48 /* Offset of FSINFO sector (2) */
mimi3	10:b48d3ace55db	394	#define BPB_BkBootSec 50 /* Offset of backup boot sector (2) */
mimi3	10:b48d3ace55db	395	#define BS_DrvNum32 64 /* Physical drive number (1) */
mimi3	10:b48d3ace55db	396	#define BS_NTres32 65 /* Error flag (1) */
mimi3	10:b48d3ace55db	397	#define BS_BootSig32 66 /* Extended boot signature (1) */
mimi3	10:b48d3ace55db	398	#define BS_VolID32 67 /* Volume serial number (4) */
mimi3	10:b48d3ace55db	399	#define BS_VolLab32 71 /* Volume label (8) */
mimi3	10:b48d3ace55db	400	#define BS_FilSysType32 82 /* File system type (1) */
mimi3	10:b48d3ace55db	401	#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
mimi3	10:b48d3ace55db	402	#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
mimi3	10:b48d3ace55db	403	#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
mimi3	10:b48d3ace55db	404	#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
mimi3	10:b48d3ace55db	405	#define MBR_Table 446 /* MBR: Partition table offset (2) */
mimi3	10:b48d3ace55db	406	#define SZ_PTE 16 /* MBR: Size of a partition table entry */
mimi3	10:b48d3ace55db	407	#define BS_55AA 510 /* Signature word (2) */
mimi3	10:b48d3ace55db	408
mimi3	10:b48d3ace55db	409	#define DIR_Name 0 /* Short file name (11) */
mimi3	10:b48d3ace55db	410	#define DIR_Attr 11 /* Attribute (1) */
mimi3	10:b48d3ace55db	411	#define DIR_NTres 12 /* Lower case flag (1) */
mimi3	10:b48d3ace55db	412	#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
mimi3	10:b48d3ace55db	413	#define DIR_CrtTime 14 /* Created time (2) */
mimi3	10:b48d3ace55db	414	#define DIR_CrtDate 16 /* Created date (2) */
mimi3	10:b48d3ace55db	415	#define DIR_LstAccDate 18 /* Last accessed date (2) */
mimi3	10:b48d3ace55db	416	#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
mimi3	10:b48d3ace55db	417	#define DIR_WrtTime 22 /* Modified time (2) */
mimi3	10:b48d3ace55db	418	#define DIR_WrtDate 24 /* Modified date (2) */
mimi3	10:b48d3ace55db	419	#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (2) */
mimi3	10:b48d3ace55db	420	#define DIR_FileSize 28 /* File size (4) */
mimi3	10:b48d3ace55db	421	#define LDIR_Ord 0 /* LFN entry order and LLE flag (1) */
mimi3	10:b48d3ace55db	422	#define LDIR_Attr 11 /* LFN attribute (1) */
mimi3	10:b48d3ace55db	423	#define LDIR_Type 12 /* LFN type (1) */
mimi3	10:b48d3ace55db	424	#define LDIR_Chksum 13 /* Checksum of corresponding SFN entry */
mimi3	10:b48d3ace55db	425	#define LDIR_FstClusLO 26 /* Must be zero (0) */
mimi3	10:b48d3ace55db	426	#define SZ_DIRE 32 /* Size of a directory entry */
mimi3	10:b48d3ace55db	427	#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
mimi3	10:b48d3ace55db	428	#define DDEM 0xE5 /* Deleted directory entry mark at DIR_Name[0] */
mimi3	10:b48d3ace55db	429	#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
mimi3	10:b48d3ace55db	430
mimi3	10:b48d3ace55db	431
mimi3	10:b48d3ace55db	432
mimi3	10:b48d3ace55db	433
mimi3	10:b48d3ace55db	434	/*--------------------------------------------------------------------------
mimi3	10:b48d3ace55db	435
mimi3	10:b48d3ace55db	436	Module Private Work Area
mimi3	10:b48d3ace55db	437
mimi3	10:b48d3ace55db	438	---------------------------------------------------------------------------*/
mimi3	10:b48d3ace55db	439
mimi3	10:b48d3ace55db	440	/* Remark: Uninitialized variables with static duration are guaranteed
mimi3	10:b48d3ace55db	441	/ zero/null at start-up. If not, either the linker or start-up routine
mimi3	10:b48d3ace55db	442	/ being used is not compliance with ANSI-C standard.
mimi3	10:b48d3ace55db	443	*/
mimi3	10:b48d3ace55db	444
mimi3	10:b48d3ace55db	445	#if _VOLUMES < 1 \|\| _VOLUMES > 9
mimi3	10:b48d3ace55db	446	#error Wrong _VOLUMES setting
mimi3	10:b48d3ace55db	447	#endif
mimi3	10:b48d3ace55db	448	static FATFS FatFs[_VOLUMES]; / Pointer to the file system objects (logical drives) */
mimi3	10:b48d3ace55db	449	static WORD Fsid; /* File system mount ID */
mimi3	10:b48d3ace55db	450
mimi3	10:b48d3ace55db	451	#if _FS_RPATH && _VOLUMES >= 2
mimi3	10:b48d3ace55db	452	static BYTE CurrVol; /* Current drive */
mimi3	10:b48d3ace55db	453	#endif
mimi3	10:b48d3ace55db	454
mimi3	10:b48d3ace55db	455	#if _FS_LOCK
mimi3	10:b48d3ace55db	456	static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
mimi3	10:b48d3ace55db	457	#endif
mimi3	10:b48d3ace55db	458
mimi3	10:b48d3ace55db	459	#if _USE_LFN == 0 /* Non LFN feature */
mimi3	10:b48d3ace55db	460	#define DEFINE_NAMEBUF BYTE sfn[12]
mimi3	10:b48d3ace55db	461	#define INIT_BUF(dobj) (dobj).fn = sfn
mimi3	10:b48d3ace55db	462	#define FREE_BUF()
mimi3	10:b48d3ace55db	463	#else
mimi3	10:b48d3ace55db	464	#if _MAX_LFN < 12 \|\| _MAX_LFN > 255
mimi3	10:b48d3ace55db	465	#error Wrong _MAX_LFN setting
mimi3	10:b48d3ace55db	466	#endif
mimi3	10:b48d3ace55db	467	#if _USE_LFN == 1 /* LFN feature with static working buffer */
mimi3	10:b48d3ace55db	468	static WCHAR LfnBuf[_MAX_LFN + 1];
mimi3	10:b48d3ace55db	469	#define DEFINE_NAMEBUF BYTE sfn[12]
mimi3	10:b48d3ace55db	470	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
mimi3	10:b48d3ace55db	471	#define FREE_BUF()
mimi3	10:b48d3ace55db	472	#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
mimi3	10:b48d3ace55db	473	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1]
mimi3	10:b48d3ace55db	474	#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
mimi3	10:b48d3ace55db	475	#define FREE_BUF()
mimi3	10:b48d3ace55db	476	#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
mimi3	10:b48d3ace55db	477	#define DEFINE_NAMEBUF BYTE sfn[12]; WCHAR *lfn
mimi3	10:b48d3ace55db	478	#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); (dobj).lfn = lfn; (dobj).fn = sfn; }
mimi3	10:b48d3ace55db	479	#define FREE_BUF() ff_memfree(lfn)
mimi3	10:b48d3ace55db	480	#else
mimi3	10:b48d3ace55db	481	#error Wrong _USE_LFN setting
mimi3	10:b48d3ace55db	482	#endif
mimi3	10:b48d3ace55db	483	#endif
mimi3	10:b48d3ace55db	484
mimi3	10:b48d3ace55db	485	#ifdef _EXCVT
mimi3	10:b48d3ace55db	486	static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */
mimi3	10:b48d3ace55db	487	#endif
mimi3	10:b48d3ace55db	488
mimi3	10:b48d3ace55db	489
mimi3	10:b48d3ace55db	490
mimi3	10:b48d3ace55db	491
mimi3	10:b48d3ace55db	492
mimi3	10:b48d3ace55db	493
mimi3	10:b48d3ace55db	494	/*--------------------------------------------------------------------------
mimi3	10:b48d3ace55db	495
mimi3	10:b48d3ace55db	496	Module Private Functions
mimi3	10:b48d3ace55db	497
mimi3	10:b48d3ace55db	498	---------------------------------------------------------------------------*/
mimi3	10:b48d3ace55db	499
mimi3	10:b48d3ace55db	500
mimi3	10:b48d3ace55db	501	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	502	/* String functions */
mimi3	10:b48d3ace55db	503	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	504
mimi3	10:b48d3ace55db	505	/* Copy memory to memory */
mimi3	10:b48d3ace55db	506	static
mimi3	10:b48d3ace55db	507	void mem_cpy (void* dst, const void* src, UINT cnt) {
mimi3	10:b48d3ace55db	508	BYTE d = (BYTE)dst;
mimi3	10:b48d3ace55db	509	const BYTE s = (const BYTE)src;
mimi3	10:b48d3ace55db	510
mimi3	10:b48d3ace55db	511	#if _WORD_ACCESS == 1
mimi3	10:b48d3ace55db	512	while (cnt >= sizeof (int)) {
mimi3	10:b48d3ace55db	513	(int)d = (int)s;
mimi3	10:b48d3ace55db	514	d += sizeof (int); s += sizeof (int);
mimi3	10:b48d3ace55db	515	cnt -= sizeof (int);
mimi3	10:b48d3ace55db	516	}
mimi3	10:b48d3ace55db	517	#endif
mimi3	10:b48d3ace55db	518	while (cnt--)
mimi3	10:b48d3ace55db	519	d++ = s++;
mimi3	10:b48d3ace55db	520	}
mimi3	10:b48d3ace55db	521
mimi3	10:b48d3ace55db	522	/* Fill memory */
mimi3	10:b48d3ace55db	523	static
mimi3	10:b48d3ace55db	524	void mem_set (void* dst, int val, UINT cnt) {
mimi3	10:b48d3ace55db	525	BYTE d = (BYTE)dst;
mimi3	10:b48d3ace55db	526
mimi3	10:b48d3ace55db	527	while (cnt--)
mimi3	10:b48d3ace55db	528	*d++ = (BYTE)val;
mimi3	10:b48d3ace55db	529	}
mimi3	10:b48d3ace55db	530
mimi3	10:b48d3ace55db	531	/* Compare memory to memory */
mimi3	10:b48d3ace55db	532	static
mimi3	10:b48d3ace55db	533	int mem_cmp (const void* dst, const void* src, UINT cnt) {
mimi3	10:b48d3ace55db	534	const BYTE d = (const BYTE )dst, s = (const BYTE )src;
mimi3	10:b48d3ace55db	535	int r = 0;
mimi3	10:b48d3ace55db	536
mimi3	10:b48d3ace55db	537	while (cnt-- && (r = d++ - s++) == 0) ;
mimi3	10:b48d3ace55db	538	return r;
mimi3	10:b48d3ace55db	539	}
mimi3	10:b48d3ace55db	540
mimi3	10:b48d3ace55db	541	/* Check if chr is contained in the string */
mimi3	10:b48d3ace55db	542	static
mimi3	10:b48d3ace55db	543	int chk_chr (const char* str, int chr) {
mimi3	10:b48d3ace55db	544	while (str && str != chr) str++;
mimi3	10:b48d3ace55db	545	return *str;
mimi3	10:b48d3ace55db	546	}
mimi3	10:b48d3ace55db	547
mimi3	10:b48d3ace55db	548
mimi3	10:b48d3ace55db	549
mimi3	10:b48d3ace55db	550
mimi3	10:b48d3ace55db	551	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	552	/* Request/Release grant to access the volume */
mimi3	10:b48d3ace55db	553	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	554	#if _FS_REENTRANT
mimi3	10:b48d3ace55db	555	static
mimi3	10:b48d3ace55db	556	int lock_fs (
mimi3	10:b48d3ace55db	557	FATFS* fs /* File system object */
mimi3	10:b48d3ace55db	558	)
mimi3	10:b48d3ace55db	559	{
mimi3	10:b48d3ace55db	560	return ff_req_grant(fs->sobj);
mimi3	10:b48d3ace55db	561	}
mimi3	10:b48d3ace55db	562
mimi3	10:b48d3ace55db	563
mimi3	10:b48d3ace55db	564	static
mimi3	10:b48d3ace55db	565	void unlock_fs (
mimi3	10:b48d3ace55db	566	FATFS* fs, /* File system object */
mimi3	10:b48d3ace55db	567	FRESULT res /* Result code to be returned */
mimi3	10:b48d3ace55db	568	)
mimi3	10:b48d3ace55db	569	{
mimi3	10:b48d3ace55db	570	if (fs &&
mimi3	10:b48d3ace55db	571	res != FR_NOT_ENABLED &&
mimi3	10:b48d3ace55db	572	res != FR_INVALID_DRIVE &&
mimi3	10:b48d3ace55db	573	res != FR_INVALID_OBJECT &&
mimi3	10:b48d3ace55db	574	res != FR_TIMEOUT) {
mimi3	10:b48d3ace55db	575	ff_rel_grant(fs->sobj);
mimi3	10:b48d3ace55db	576	}
mimi3	10:b48d3ace55db	577	}
mimi3	10:b48d3ace55db	578	#endif
mimi3	10:b48d3ace55db	579
mimi3	10:b48d3ace55db	580
mimi3	10:b48d3ace55db	581
mimi3	10:b48d3ace55db	582
mimi3	10:b48d3ace55db	583	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	584	/* File lock control functions */
mimi3	10:b48d3ace55db	585	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	586	#if _FS_LOCK
mimi3	10:b48d3ace55db	587
mimi3	10:b48d3ace55db	588	static
mimi3	10:b48d3ace55db	589	FRESULT chk_lock ( /* Check if the file can be accessed */
mimi3	10:b48d3ace55db	590	FATFS_DIR* dp, /* Directory object pointing the file to be checked */
mimi3	10:b48d3ace55db	591	int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
mimi3	10:b48d3ace55db	592	)
mimi3	10:b48d3ace55db	593	{
mimi3	10:b48d3ace55db	594	UINT i, be;
mimi3	10:b48d3ace55db	595
mimi3	10:b48d3ace55db	596	/* Search file semaphore table */
mimi3	10:b48d3ace55db	597	for (i = be = 0; i < _FS_LOCK; i++) {
mimi3	10:b48d3ace55db	598	if (Files[i].fs) { /* Existing entry */
mimi3	10:b48d3ace55db	599	if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
mimi3	10:b48d3ace55db	600	Files[i].clu == dp->sclust &&
mimi3	10:b48d3ace55db	601	Files[i].idx == dp->index) break;
mimi3	10:b48d3ace55db	602	} else { /* Blank entry */
mimi3	10:b48d3ace55db	603	be = 1;
mimi3	10:b48d3ace55db	604	}
mimi3	10:b48d3ace55db	605	}
mimi3	10:b48d3ace55db	606	if (i == _FS_LOCK) /* The object is not opened */
mimi3	10:b48d3ace55db	607	return (be \|\| acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
mimi3	10:b48d3ace55db	608
mimi3	10:b48d3ace55db	609	/* The object has been opened. Reject any open against writing file and all write mode open */
mimi3	10:b48d3ace55db	610	return (acc \|\| Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
mimi3	10:b48d3ace55db	611	}
mimi3	10:b48d3ace55db	612
mimi3	10:b48d3ace55db	613
mimi3	10:b48d3ace55db	614	static
mimi3	10:b48d3ace55db	615	int enq_lock (void) /* Check if an entry is available for a new object */
mimi3	10:b48d3ace55db	616	{
mimi3	10:b48d3ace55db	617	UINT i;
mimi3	10:b48d3ace55db	618
mimi3	10:b48d3ace55db	619	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mimi3	10:b48d3ace55db	620	return (i == _FS_LOCK) ? 0 : 1;
mimi3	10:b48d3ace55db	621	}
mimi3	10:b48d3ace55db	622
mimi3	10:b48d3ace55db	623
mimi3	10:b48d3ace55db	624	static
mimi3	10:b48d3ace55db	625	UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
mimi3	10:b48d3ace55db	626	FATFS_DIR* dp, /* Directory object pointing the file to register or increment */
mimi3	10:b48d3ace55db	627	int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
mimi3	10:b48d3ace55db	628	)
mimi3	10:b48d3ace55db	629	{
mimi3	10:b48d3ace55db	630	UINT i;
mimi3	10:b48d3ace55db	631
mimi3	10:b48d3ace55db	632
mimi3	10:b48d3ace55db	633	for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
mimi3	10:b48d3ace55db	634	if (Files[i].fs == dp->fs &&
mimi3	10:b48d3ace55db	635	Files[i].clu == dp->sclust &&
mimi3	10:b48d3ace55db	636	Files[i].idx == dp->index) break;
mimi3	10:b48d3ace55db	637	}
mimi3	10:b48d3ace55db	638
mimi3	10:b48d3ace55db	639	if (i == _FS_LOCK) { /* Not opened. Register it as new. */
mimi3	10:b48d3ace55db	640	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
mimi3	10:b48d3ace55db	641	if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
mimi3	10:b48d3ace55db	642	Files[i].fs = dp->fs;
mimi3	10:b48d3ace55db	643	Files[i].clu = dp->sclust;
mimi3	10:b48d3ace55db	644	Files[i].idx = dp->index;
mimi3	10:b48d3ace55db	645	Files[i].ctr = 0;
mimi3	10:b48d3ace55db	646	}
mimi3	10:b48d3ace55db	647
mimi3	10:b48d3ace55db	648	if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
mimi3	10:b48d3ace55db	649
mimi3	10:b48d3ace55db	650	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
mimi3	10:b48d3ace55db	651
mimi3	10:b48d3ace55db	652	return i + 1;
mimi3	10:b48d3ace55db	653	}
mimi3	10:b48d3ace55db	654
mimi3	10:b48d3ace55db	655
mimi3	10:b48d3ace55db	656	static
mimi3	10:b48d3ace55db	657	FRESULT dec_lock ( /* Decrement object open counter */
mimi3	10:b48d3ace55db	658	UINT i /* Semaphore index (1..) */
mimi3	10:b48d3ace55db	659	)
mimi3	10:b48d3ace55db	660	{
mimi3	10:b48d3ace55db	661	WORD n;
mimi3	10:b48d3ace55db	662	FRESULT res;
mimi3	10:b48d3ace55db	663
mimi3	10:b48d3ace55db	664
mimi3	10:b48d3ace55db	665	if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
mimi3	10:b48d3ace55db	666	n = Files[i].ctr;
mimi3	10:b48d3ace55db	667	if (n == 0x100) n = 0; /* If write mode open, delete the entry */
mimi3	10:b48d3ace55db	668	if (n) n--; /* Decrement read mode open count */
mimi3	10:b48d3ace55db	669	Files[i].ctr = n;
mimi3	10:b48d3ace55db	670	if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
mimi3	10:b48d3ace55db	671	res = FR_OK;
mimi3	10:b48d3ace55db	672	} else {
mimi3	10:b48d3ace55db	673	res = FR_INT_ERR; /* Invalid index nunber */
mimi3	10:b48d3ace55db	674	}
mimi3	10:b48d3ace55db	675	return res;
mimi3	10:b48d3ace55db	676	}
mimi3	10:b48d3ace55db	677
mimi3	10:b48d3ace55db	678
mimi3	10:b48d3ace55db	679	static
mimi3	10:b48d3ace55db	680	void clear_lock ( /* Clear lock entries of the volume */
mimi3	10:b48d3ace55db	681	FATFS *fs
mimi3	10:b48d3ace55db	682	)
mimi3	10:b48d3ace55db	683	{
mimi3	10:b48d3ace55db	684	UINT i;
mimi3	10:b48d3ace55db	685
mimi3	10:b48d3ace55db	686	for (i = 0; i < _FS_LOCK; i++) {
mimi3	10:b48d3ace55db	687	if (Files[i].fs == fs) Files[i].fs = 0;
mimi3	10:b48d3ace55db	688	}
mimi3	10:b48d3ace55db	689	}
mimi3	10:b48d3ace55db	690	#endif
mimi3	10:b48d3ace55db	691
mimi3	10:b48d3ace55db	692
mimi3	10:b48d3ace55db	693
mimi3	10:b48d3ace55db	694
mimi3	10:b48d3ace55db	695	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	696	/* Move/Flush disk access window in the file system object */
mimi3	10:b48d3ace55db	697	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	698	#if !_FS_READONLY
mimi3	10:b48d3ace55db	699	static
mimi3	10:b48d3ace55db	700	FRESULT sync_window ( /* FR_OK:succeeded, !=0:error */
mimi3	10:b48d3ace55db	701	FATFS* fs /* File system object */
mimi3	10:b48d3ace55db	702	)
mimi3	10:b48d3ace55db	703	{
mimi3	10:b48d3ace55db	704	DWORD wsect;
mimi3	10:b48d3ace55db	705	UINT nf;
mimi3	10:b48d3ace55db	706	FRESULT res = FR_OK;
mimi3	10:b48d3ace55db	707
mimi3	10:b48d3ace55db	708
mimi3	10:b48d3ace55db	709	if (fs->wflag) { /* Write back the sector if it is dirty */
mimi3	10:b48d3ace55db	710	wsect = fs->winsect; /* Current sector number */
mimi3	10:b48d3ace55db	711	if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
mimi3	10:b48d3ace55db	712	res = FR_DISK_ERR;
mimi3	10:b48d3ace55db	713	} else {
mimi3	10:b48d3ace55db	714	fs->wflag = 0;
mimi3	10:b48d3ace55db	715	if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
mimi3	10:b48d3ace55db	716	for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
mimi3	10:b48d3ace55db	717	wsect += fs->fsize;
mimi3	10:b48d3ace55db	718	disk_write(fs->drv, fs->win, wsect, 1);
mimi3	10:b48d3ace55db	719	}
mimi3	10:b48d3ace55db	720	}
mimi3	10:b48d3ace55db	721	}
mimi3	10:b48d3ace55db	722	}
mimi3	10:b48d3ace55db	723	return res;
mimi3	10:b48d3ace55db	724	}
mimi3	10:b48d3ace55db	725	#endif
mimi3	10:b48d3ace55db	726
mimi3	10:b48d3ace55db	727
mimi3	10:b48d3ace55db	728	static
mimi3	10:b48d3ace55db	729	FRESULT move_window ( /* FR_OK(0):succeeded, !=0:error */
mimi3	10:b48d3ace55db	730	FATFS* fs, /* File system object */
mimi3	10:b48d3ace55db	731	DWORD sector /* Sector number to make appearance in the fs->win[] */
mimi3	10:b48d3ace55db	732	)
mimi3	10:b48d3ace55db	733	{
mimi3	10:b48d3ace55db	734	FRESULT res = FR_OK;
mimi3	10:b48d3ace55db	735
mimi3	10:b48d3ace55db	736
mimi3	10:b48d3ace55db	737	if (sector != fs->winsect) { /* Window offset changed? */
mimi3	10:b48d3ace55db	738	#if !_FS_READONLY
mimi3	10:b48d3ace55db	739	res = sync_window(fs); /* Write-back changes */
mimi3	10:b48d3ace55db	740	#endif
mimi3	10:b48d3ace55db	741	if (res == FR_OK) { /* Fill sector window with new data */
mimi3	10:b48d3ace55db	742	if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
mimi3	10:b48d3ace55db	743	sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
mimi3	10:b48d3ace55db	744	res = FR_DISK_ERR;
mimi3	10:b48d3ace55db	745	}
mimi3	10:b48d3ace55db	746	fs->winsect = sector;
mimi3	10:b48d3ace55db	747	}
mimi3	10:b48d3ace55db	748	}
mimi3	10:b48d3ace55db	749	return res;
mimi3	10:b48d3ace55db	750	}
mimi3	10:b48d3ace55db	751
mimi3	10:b48d3ace55db	752
mimi3	10:b48d3ace55db	753
mimi3	10:b48d3ace55db	754
mimi3	10:b48d3ace55db	755	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	756	/* Synchronize file system and strage device */
mimi3	10:b48d3ace55db	757	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	758	#if !_FS_READONLY
mimi3	10:b48d3ace55db	759	static
mimi3	10:b48d3ace55db	760	FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */
mimi3	10:b48d3ace55db	761	FATFS* fs /* File system object */
mimi3	10:b48d3ace55db	762	)
mimi3	10:b48d3ace55db	763	{
mimi3	10:b48d3ace55db	764	FRESULT res;
mimi3	10:b48d3ace55db	765
mimi3	10:b48d3ace55db	766
mimi3	10:b48d3ace55db	767	res = sync_window(fs);
mimi3	10:b48d3ace55db	768	if (res == FR_OK) {
mimi3	10:b48d3ace55db	769	/* Update FSInfo sector if needed */
mimi3	10:b48d3ace55db	770	if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
mimi3	10:b48d3ace55db	771	/* Create FSInfo structure */
mimi3	10:b48d3ace55db	772	mem_set(fs->win, 0, SS(fs));
mimi3	10:b48d3ace55db	773	ST_WORD(fs->win + BS_55AA, 0xAA55);
mimi3	10:b48d3ace55db	774	ST_DWORD(fs->win + FSI_LeadSig, 0x41615252);
mimi3	10:b48d3ace55db	775	ST_DWORD(fs->win + FSI_StrucSig, 0x61417272);
mimi3	10:b48d3ace55db	776	ST_DWORD(fs->win + FSI_Free_Count, fs->free_clust);
mimi3	10:b48d3ace55db	777	ST_DWORD(fs->win + FSI_Nxt_Free, fs->last_clust);
mimi3	10:b48d3ace55db	778	/* Write it into the FSInfo sector */
mimi3	10:b48d3ace55db	779	fs->winsect = fs->volbase + 1;
mimi3	10:b48d3ace55db	780	disk_write(fs->drv, fs->win, fs->winsect, 1);
mimi3	10:b48d3ace55db	781	fs->fsi_flag = 0;
mimi3	10:b48d3ace55db	782	}
mimi3	10:b48d3ace55db	783	/* Make sure that no pending write process in the physical drive */
mimi3	10:b48d3ace55db	784	if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
mimi3	10:b48d3ace55db	785	res = FR_DISK_ERR;
mimi3	10:b48d3ace55db	786	}
mimi3	10:b48d3ace55db	787
mimi3	10:b48d3ace55db	788	return res;
mimi3	10:b48d3ace55db	789	}
mimi3	10:b48d3ace55db	790	#endif
mimi3	10:b48d3ace55db	791
mimi3	10:b48d3ace55db	792
mimi3	10:b48d3ace55db	793
mimi3	10:b48d3ace55db	794
mimi3	10:b48d3ace55db	795	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	796	/* Get sector# from cluster# */
mimi3	10:b48d3ace55db	797	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	798	/* Hidden API for hacks and disk tools */
mimi3	10:b48d3ace55db	799
mimi3	10:b48d3ace55db	800	DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
mimi3	10:b48d3ace55db	801	FATFS* fs, /* File system object */
mimi3	10:b48d3ace55db	802	DWORD clst /* Cluster# to be converted */
mimi3	10:b48d3ace55db	803	)
mimi3	10:b48d3ace55db	804	{
mimi3	10:b48d3ace55db	805	clst -= 2;
mimi3	10:b48d3ace55db	806	if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
mimi3	10:b48d3ace55db	807	return clst * fs->csize + fs->database;
mimi3	10:b48d3ace55db	808	}
mimi3	10:b48d3ace55db	809
mimi3	10:b48d3ace55db	810
mimi3	10:b48d3ace55db	811
mimi3	10:b48d3ace55db	812
mimi3	10:b48d3ace55db	813	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	814	/* FAT access - Read value of a FAT entry */
mimi3	10:b48d3ace55db	815	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	816	/* Hidden API for hacks and disk tools */
mimi3	10:b48d3ace55db	817
mimi3	10:b48d3ace55db	818	DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
mimi3	10:b48d3ace55db	819	FATFS* fs, /* File system object */
mimi3	10:b48d3ace55db	820	DWORD clst /* FAT index number (cluster number) to get the value */
mimi3	10:b48d3ace55db	821	)
mimi3	10:b48d3ace55db	822	{
mimi3	10:b48d3ace55db	823	UINT wc, bc;
mimi3	10:b48d3ace55db	824	BYTE *p;
mimi3	10:b48d3ace55db	825	DWORD val;
mimi3	10:b48d3ace55db	826
mimi3	10:b48d3ace55db	827
mimi3	10:b48d3ace55db	828	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mimi3	10:b48d3ace55db	829	val = 1; /* Internal error */
mimi3	10:b48d3ace55db	830
mimi3	10:b48d3ace55db	831	} else {
mimi3	10:b48d3ace55db	832	val = 0xFFFFFFFF; /* Default value falls on disk error */
mimi3	10:b48d3ace55db	833
mimi3	10:b48d3ace55db	834	switch (fs->fs_type) {
mimi3	10:b48d3ace55db	835	case FS_FAT12 :
mimi3	10:b48d3ace55db	836	bc = (UINT)clst; bc += bc / 2;
mimi3	10:b48d3ace55db	837	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mimi3	10:b48d3ace55db	838	wc = fs->win[bc++ % SS(fs)];
mimi3	10:b48d3ace55db	839	if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
mimi3	10:b48d3ace55db	840	wc \|= fs->win[bc % SS(fs)] << 8;
mimi3	10:b48d3ace55db	841	val = clst & 1 ? wc >> 4 : (wc & 0xFFF);
mimi3	10:b48d3ace55db	842	break;
mimi3	10:b48d3ace55db	843
mimi3	10:b48d3ace55db	844	case FS_FAT16 :
mimi3	10:b48d3ace55db	845	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
mimi3	10:b48d3ace55db	846	p = &fs->win[clst * 2 % SS(fs)];
mimi3	10:b48d3ace55db	847	val = LD_WORD(p);
mimi3	10:b48d3ace55db	848	break;
mimi3	10:b48d3ace55db	849
mimi3	10:b48d3ace55db	850	case FS_FAT32 :
mimi3	10:b48d3ace55db	851	if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
mimi3	10:b48d3ace55db	852	p = &fs->win[clst * 4 % SS(fs)];
mimi3	10:b48d3ace55db	853	val = LD_DWORD(p) & 0x0FFFFFFF;
mimi3	10:b48d3ace55db	854	break;
mimi3	10:b48d3ace55db	855
mimi3	10:b48d3ace55db	856	default:
mimi3	10:b48d3ace55db	857	val = 1; /* Internal error */
mimi3	10:b48d3ace55db	858	}
mimi3	10:b48d3ace55db	859	}
mimi3	10:b48d3ace55db	860
mimi3	10:b48d3ace55db	861	return val;
mimi3	10:b48d3ace55db	862	}
mimi3	10:b48d3ace55db	863
mimi3	10:b48d3ace55db	864
mimi3	10:b48d3ace55db	865
mimi3	10:b48d3ace55db	866
mimi3	10:b48d3ace55db	867	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	868	/* FAT access - Change value of a FAT entry */
mimi3	10:b48d3ace55db	869	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	870	/* Hidden API for hacks and disk tools */
mimi3	10:b48d3ace55db	871
mimi3	10:b48d3ace55db	872	#if !_FS_READONLY
mimi3	10:b48d3ace55db	873	FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
mimi3	10:b48d3ace55db	874	FATFS* fs, /* File system object */
mimi3	10:b48d3ace55db	875	DWORD clst, /* FAT index number (cluster number) to be changed */
mimi3	10:b48d3ace55db	876	DWORD val /* New value to be set to the entry */
mimi3	10:b48d3ace55db	877	)
mimi3	10:b48d3ace55db	878	{
mimi3	10:b48d3ace55db	879	UINT bc;
mimi3	10:b48d3ace55db	880	BYTE *p;
mimi3	10:b48d3ace55db	881	FRESULT res;
mimi3	10:b48d3ace55db	882
mimi3	10:b48d3ace55db	883
mimi3	10:b48d3ace55db	884	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mimi3	10:b48d3ace55db	885	res = FR_INT_ERR;
mimi3	10:b48d3ace55db	886
mimi3	10:b48d3ace55db	887	} else {
mimi3	10:b48d3ace55db	888	switch (fs->fs_type) {
mimi3	10:b48d3ace55db	889	case FS_FAT12 :
mimi3	10:b48d3ace55db	890	bc = (UINT)clst; bc += bc / 2;
mimi3	10:b48d3ace55db	891	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mimi3	10:b48d3ace55db	892	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	893	p = &fs->win[bc++ % SS(fs)];
mimi3	10:b48d3ace55db	894	p = (clst & 1) ? ((p & 0x0F) \| ((BYTE)val << 4)) : (BYTE)val;
mimi3	10:b48d3ace55db	895	fs->wflag = 1;
mimi3	10:b48d3ace55db	896	res = move_window(fs, fs->fatbase + (bc / SS(fs)));
mimi3	10:b48d3ace55db	897	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	898	p = &fs->win[bc % SS(fs)];
mimi3	10:b48d3ace55db	899	p = (clst & 1) ? (BYTE)(val >> 4) : ((p & 0xF0) \| ((BYTE)(val >> 8) & 0x0F));
mimi3	10:b48d3ace55db	900	fs->wflag = 1;
mimi3	10:b48d3ace55db	901	break;
mimi3	10:b48d3ace55db	902
mimi3	10:b48d3ace55db	903	case FS_FAT16 :
mimi3	10:b48d3ace55db	904	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
mimi3	10:b48d3ace55db	905	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	906	p = &fs->win[clst * 2 % SS(fs)];
mimi3	10:b48d3ace55db	907	ST_WORD(p, (WORD)val);
mimi3	10:b48d3ace55db	908	fs->wflag = 1;
mimi3	10:b48d3ace55db	909	break;
mimi3	10:b48d3ace55db	910
mimi3	10:b48d3ace55db	911	case FS_FAT32 :
mimi3	10:b48d3ace55db	912	res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
mimi3	10:b48d3ace55db	913	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	914	p = &fs->win[clst * 4 % SS(fs)];
mimi3	10:b48d3ace55db	915	val \|= LD_DWORD(p) & 0xF0000000;
mimi3	10:b48d3ace55db	916	ST_DWORD(p, val);
mimi3	10:b48d3ace55db	917	fs->wflag = 1;
mimi3	10:b48d3ace55db	918	break;
mimi3	10:b48d3ace55db	919
mimi3	10:b48d3ace55db	920	default :
mimi3	10:b48d3ace55db	921	res = FR_INT_ERR;
mimi3	10:b48d3ace55db	922	}
mimi3	10:b48d3ace55db	923	}
mimi3	10:b48d3ace55db	924
mimi3	10:b48d3ace55db	925	return res;
mimi3	10:b48d3ace55db	926	}
mimi3	10:b48d3ace55db	927	#endif /* !_FS_READONLY */
mimi3	10:b48d3ace55db	928
mimi3	10:b48d3ace55db	929
mimi3	10:b48d3ace55db	930
mimi3	10:b48d3ace55db	931
mimi3	10:b48d3ace55db	932	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	933	/* FAT handling - Remove a cluster chain */
mimi3	10:b48d3ace55db	934	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	935	#if !_FS_READONLY
mimi3	10:b48d3ace55db	936	static
mimi3	10:b48d3ace55db	937	FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
mimi3	10:b48d3ace55db	938	FATFS* fs, /* File system object */
mimi3	10:b48d3ace55db	939	DWORD clst /* Cluster# to remove a chain from */
mimi3	10:b48d3ace55db	940	)
mimi3	10:b48d3ace55db	941	{
mimi3	10:b48d3ace55db	942	FRESULT res;
mimi3	10:b48d3ace55db	943	DWORD nxt;
mimi3	10:b48d3ace55db	944	#if _USE_TRIM
mimi3	10:b48d3ace55db	945	DWORD scl = clst, ecl = clst, rt[2];
mimi3	10:b48d3ace55db	946	#endif
mimi3	10:b48d3ace55db	947
mimi3	10:b48d3ace55db	948	if (clst < 2 \|\| clst >= fs->n_fatent) { /* Check if in valid range */
mimi3	10:b48d3ace55db	949	res = FR_INT_ERR;
mimi3	10:b48d3ace55db	950
mimi3	10:b48d3ace55db	951	} else {
mimi3	10:b48d3ace55db	952	res = FR_OK;
mimi3	10:b48d3ace55db	953	while (clst < fs->n_fatent) { /* Not a last link? */
mimi3	10:b48d3ace55db	954	nxt = get_fat(fs, clst); /* Get cluster status */
mimi3	10:b48d3ace55db	955	if (nxt == 0) break; /* Empty cluster? */
mimi3	10:b48d3ace55db	956	if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */
mimi3	10:b48d3ace55db	957	if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */
mimi3	10:b48d3ace55db	958	res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */
mimi3	10:b48d3ace55db	959	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	960	if (fs->free_clust != 0xFFFFFFFF) { /* Update FSINFO */
mimi3	10:b48d3ace55db	961	fs->free_clust++;
mimi3	10:b48d3ace55db	962	fs->fsi_flag \|= 1;
mimi3	10:b48d3ace55db	963	}
mimi3	10:b48d3ace55db	964	#if _USE_TRIM
mimi3	10:b48d3ace55db	965	if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
mimi3	10:b48d3ace55db	966	ecl = nxt;
mimi3	10:b48d3ace55db	967	} else { /* End of contiguous clusters */
mimi3	10:b48d3ace55db	968	rt[0] = clust2sect(fs, scl); /* Start sector */
mimi3	10:b48d3ace55db	969	rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
mimi3	10:b48d3ace55db	970	disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Erase the block */
mimi3	10:b48d3ace55db	971	scl = ecl = nxt;
mimi3	10:b48d3ace55db	972	}
mimi3	10:b48d3ace55db	973	#endif
mimi3	10:b48d3ace55db	974	clst = nxt; /* Next cluster */
mimi3	10:b48d3ace55db	975	}
mimi3	10:b48d3ace55db	976	}
mimi3	10:b48d3ace55db	977
mimi3	10:b48d3ace55db	978	return res;
mimi3	10:b48d3ace55db	979	}
mimi3	10:b48d3ace55db	980	#endif
mimi3	10:b48d3ace55db	981
mimi3	10:b48d3ace55db	982
mimi3	10:b48d3ace55db	983
mimi3	10:b48d3ace55db	984
mimi3	10:b48d3ace55db	985	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	986	/* FAT handling - Stretch or Create a cluster chain */
mimi3	10:b48d3ace55db	987	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	988	#if !_FS_READONLY
mimi3	10:b48d3ace55db	989	static
mimi3	10:b48d3ace55db	990	DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
mimi3	10:b48d3ace55db	991	FATFS* fs, /* File system object */
mimi3	10:b48d3ace55db	992	DWORD clst /* Cluster# to stretch, 0:Create a new chain */
mimi3	10:b48d3ace55db	993	)
mimi3	10:b48d3ace55db	994	{
mimi3	10:b48d3ace55db	995	DWORD cs, ncl, scl;
mimi3	10:b48d3ace55db	996	FRESULT res;
mimi3	10:b48d3ace55db	997
mimi3	10:b48d3ace55db	998
mimi3	10:b48d3ace55db	999	if (clst == 0) { /* Create a new chain */
mimi3	10:b48d3ace55db	1000	scl = fs->last_clust; /* Get suggested start point */
mimi3	10:b48d3ace55db	1001	if (!scl \|\| scl >= fs->n_fatent) scl = 1;
mimi3	10:b48d3ace55db	1002	}
mimi3	10:b48d3ace55db	1003	else { /* Stretch the current chain */
mimi3	10:b48d3ace55db	1004	cs = get_fat(fs, clst); /* Check the cluster status */
mimi3	10:b48d3ace55db	1005	if (cs < 2) return 1; /* Invalid value */
mimi3	10:b48d3ace55db	1006	if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
mimi3	10:b48d3ace55db	1007	if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
mimi3	10:b48d3ace55db	1008	scl = clst;
mimi3	10:b48d3ace55db	1009	}
mimi3	10:b48d3ace55db	1010
mimi3	10:b48d3ace55db	1011	ncl = scl; /* Start cluster */
mimi3	10:b48d3ace55db	1012	for (;;) {
mimi3	10:b48d3ace55db	1013	ncl++; /* Next cluster */
mimi3	10:b48d3ace55db	1014	if (ncl >= fs->n_fatent) { /* Check wrap around */
mimi3	10:b48d3ace55db	1015	ncl = 2;
mimi3	10:b48d3ace55db	1016	if (ncl > scl) return 0; /* No free cluster */
mimi3	10:b48d3ace55db	1017	}
mimi3	10:b48d3ace55db	1018	cs = get_fat(fs, ncl); /* Get the cluster status */
mimi3	10:b48d3ace55db	1019	if (cs == 0) break; /* Found a free cluster */
mimi3	10:b48d3ace55db	1020	if (cs == 0xFFFFFFFF \|\| cs == 1)/* An error occurred */
mimi3	10:b48d3ace55db	1021	return cs;
mimi3	10:b48d3ace55db	1022	if (ncl == scl) return 0; /* No free cluster */
mimi3	10:b48d3ace55db	1023	}
mimi3	10:b48d3ace55db	1024
mimi3	10:b48d3ace55db	1025	res = put_fat(fs, ncl, 0x0FFFFFFF); /* Mark the new cluster "last link" */
mimi3	10:b48d3ace55db	1026	if (res == FR_OK && clst != 0) {
mimi3	10:b48d3ace55db	1027	res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
mimi3	10:b48d3ace55db	1028	}
mimi3	10:b48d3ace55db	1029	if (res == FR_OK) {
mimi3	10:b48d3ace55db	1030	fs->last_clust = ncl; /* Update FSINFO */
mimi3	10:b48d3ace55db	1031	if (fs->free_clust != 0xFFFFFFFF) {
mimi3	10:b48d3ace55db	1032	fs->free_clust--;
mimi3	10:b48d3ace55db	1033	fs->fsi_flag \|= 1;
mimi3	10:b48d3ace55db	1034	}
mimi3	10:b48d3ace55db	1035	} else {
mimi3	10:b48d3ace55db	1036	ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
mimi3	10:b48d3ace55db	1037	}
mimi3	10:b48d3ace55db	1038
mimi3	10:b48d3ace55db	1039	return ncl; /* Return new cluster number or error code */
mimi3	10:b48d3ace55db	1040	}
mimi3	10:b48d3ace55db	1041	#endif /* !_FS_READONLY */
mimi3	10:b48d3ace55db	1042
mimi3	10:b48d3ace55db	1043
mimi3	10:b48d3ace55db	1044
mimi3	10:b48d3ace55db	1045
mimi3	10:b48d3ace55db	1046	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1047	/* FAT handling - Convert offset into cluster with link map table */
mimi3	10:b48d3ace55db	1048	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1049
mimi3	10:b48d3ace55db	1050	#if _USE_FASTSEEK
mimi3	10:b48d3ace55db	1051	static
mimi3	10:b48d3ace55db	1052	DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
mimi3	10:b48d3ace55db	1053	FIL* fp, /* Pointer to the file object */
mimi3	10:b48d3ace55db	1054	DWORD ofs /* File offset to be converted to cluster# */
mimi3	10:b48d3ace55db	1055	)
mimi3	10:b48d3ace55db	1056	{
mimi3	10:b48d3ace55db	1057	DWORD cl, ncl, *tbl;
mimi3	10:b48d3ace55db	1058
mimi3	10:b48d3ace55db	1059
mimi3	10:b48d3ace55db	1060	tbl = fp->cltbl + 1; /* Top of CLMT */
mimi3	10:b48d3ace55db	1061	cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
mimi3	10:b48d3ace55db	1062	for (;;) {
mimi3	10:b48d3ace55db	1063	ncl = tbl++; / Number of cluters in the fragment */
mimi3	10:b48d3ace55db	1064	if (!ncl) return 0; /* End of table? (error) */
mimi3	10:b48d3ace55db	1065	if (cl < ncl) break; /* In this fragment? */
mimi3	10:b48d3ace55db	1066	cl -= ncl; tbl++; /* Next fragment */
mimi3	10:b48d3ace55db	1067	}
mimi3	10:b48d3ace55db	1068	return cl + tbl; / Return the cluster number */
mimi3	10:b48d3ace55db	1069	}
mimi3	10:b48d3ace55db	1070	#endif /* _USE_FASTSEEK */
mimi3	10:b48d3ace55db	1071
mimi3	10:b48d3ace55db	1072
mimi3	10:b48d3ace55db	1073
mimi3	10:b48d3ace55db	1074
mimi3	10:b48d3ace55db	1075	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1076	/* Directory handling - Set directory index */
mimi3	10:b48d3ace55db	1077	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1078
mimi3	10:b48d3ace55db	1079	static
mimi3	10:b48d3ace55db	1080	FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
mimi3	10:b48d3ace55db	1081	FATFS_DIR* dp, /* Pointer to directory object */
mimi3	10:b48d3ace55db	1082	UINT idx /* Index of directory table */
mimi3	10:b48d3ace55db	1083	)
mimi3	10:b48d3ace55db	1084	{
mimi3	10:b48d3ace55db	1085	DWORD clst, sect;
mimi3	10:b48d3ace55db	1086	UINT ic;
mimi3	10:b48d3ace55db	1087
mimi3	10:b48d3ace55db	1088
mimi3	10:b48d3ace55db	1089	dp->index = (WORD)idx; /* Current index */
mimi3	10:b48d3ace55db	1090	clst = dp->sclust; /* Table start cluster (0:root) */
mimi3	10:b48d3ace55db	1091	if (clst == 1 \|\| clst >= dp->fs->n_fatent) /* Check start cluster range */
mimi3	10:b48d3ace55db	1092	return FR_INT_ERR;
mimi3	10:b48d3ace55db	1093	if (!clst && dp->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
mimi3	10:b48d3ace55db	1094	clst = dp->fs->dirbase;
mimi3	10:b48d3ace55db	1095
mimi3	10:b48d3ace55db	1096	if (clst == 0) { /* Static table (root-directory in FAT12/16) */
mimi3	10:b48d3ace55db	1097	if (idx >= dp->fs->n_rootdir) /* Is index out of range? */
mimi3	10:b48d3ace55db	1098	return FR_INT_ERR;
mimi3	10:b48d3ace55db	1099	sect = dp->fs->dirbase;
mimi3	10:b48d3ace55db	1100	}
mimi3	10:b48d3ace55db	1101	else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
mimi3	10:b48d3ace55db	1102	ic = SS(dp->fs) / SZ_DIRE * dp->fs->csize; /* Entries per cluster */
mimi3	10:b48d3ace55db	1103	while (idx >= ic) { /* Follow cluster chain */
mimi3	10:b48d3ace55db	1104	clst = get_fat(dp->fs, clst); /* Get next cluster */
mimi3	10:b48d3ace55db	1105	if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
mimi3	10:b48d3ace55db	1106	if (clst < 2 \|\| clst >= dp->fs->n_fatent) /* Reached to end of table or internal error */
mimi3	10:b48d3ace55db	1107	return FR_INT_ERR;
mimi3	10:b48d3ace55db	1108	idx -= ic;
mimi3	10:b48d3ace55db	1109	}
mimi3	10:b48d3ace55db	1110	sect = clust2sect(dp->fs, clst);
mimi3	10:b48d3ace55db	1111	}
mimi3	10:b48d3ace55db	1112	dp->clust = clst; /* Current cluster# */
mimi3	10:b48d3ace55db	1113	if (!sect) return FR_INT_ERR;
mimi3	10:b48d3ace55db	1114	dp->sect = sect + idx / (SS(dp->fs) / SZ_DIRE); /* Sector# of the directory entry */
mimi3	10:b48d3ace55db	1115	dp->dir = dp->fs->win + (idx % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Ptr to the entry in the sector */
mimi3	10:b48d3ace55db	1116
mimi3	10:b48d3ace55db	1117	return FR_OK;
mimi3	10:b48d3ace55db	1118	}
mimi3	10:b48d3ace55db	1119
mimi3	10:b48d3ace55db	1120
mimi3	10:b48d3ace55db	1121
mimi3	10:b48d3ace55db	1122
mimi3	10:b48d3ace55db	1123	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1124	/* Directory handling - Move directory table index next */
mimi3	10:b48d3ace55db	1125	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1126
mimi3	10:b48d3ace55db	1127	static
mimi3	10:b48d3ace55db	1128	FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
mimi3	10:b48d3ace55db	1129	FATFS_DIR* dp, /* Pointer to the directory object */
mimi3	10:b48d3ace55db	1130	int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
mimi3	10:b48d3ace55db	1131	)
mimi3	10:b48d3ace55db	1132	{
mimi3	10:b48d3ace55db	1133	DWORD clst;
mimi3	10:b48d3ace55db	1134	UINT i;
mimi3	10:b48d3ace55db	1135	#if !_FS_READONLY
mimi3	10:b48d3ace55db	1136	UINT c;
mimi3	10:b48d3ace55db	1137	#endif
mimi3	10:b48d3ace55db	1138
mimi3	10:b48d3ace55db	1139
mimi3	10:b48d3ace55db	1140	i = dp->index + 1;
mimi3	10:b48d3ace55db	1141	if (!(i & 0xFFFF) \|\| !dp->sect) /* Report EOT when index has reached 65535 */
mimi3	10:b48d3ace55db	1142	return FR_NO_FILE;
mimi3	10:b48d3ace55db	1143
mimi3	10:b48d3ace55db	1144	if (!(i % (SS(dp->fs) / SZ_DIRE))) { /* Sector changed? */
mimi3	10:b48d3ace55db	1145	dp->sect++; /* Next sector */
mimi3	10:b48d3ace55db	1146
mimi3	10:b48d3ace55db	1147	if (!dp->clust) { /* Static table */
mimi3	10:b48d3ace55db	1148	if (i >= dp->fs->n_rootdir) /* Report EOT if it reached end of static table */
mimi3	10:b48d3ace55db	1149	return FR_NO_FILE;
mimi3	10:b48d3ace55db	1150	}
mimi3	10:b48d3ace55db	1151	else { /* Dynamic table */
mimi3	10:b48d3ace55db	1152	if (((i / (SS(dp->fs) / SZ_DIRE)) & (dp->fs->csize - 1)) == 0) { /* Cluster changed? */
mimi3	10:b48d3ace55db	1153	clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
mimi3	10:b48d3ace55db	1154	if (clst <= 1) return FR_INT_ERR;
mimi3	10:b48d3ace55db	1155	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mimi3	10:b48d3ace55db	1156	if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
mimi3	10:b48d3ace55db	1157	#if !_FS_READONLY
mimi3	10:b48d3ace55db	1158	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT */
mimi3	10:b48d3ace55db	1159	clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
mimi3	10:b48d3ace55db	1160	if (clst == 0) return FR_DENIED; /* No free cluster */
mimi3	10:b48d3ace55db	1161	if (clst == 1) return FR_INT_ERR;
mimi3	10:b48d3ace55db	1162	if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
mimi3	10:b48d3ace55db	1163	/* Clean-up stretched table */
mimi3	10:b48d3ace55db	1164	if (sync_window(dp->fs)) return FR_DISK_ERR;/* Flush disk access window */
mimi3	10:b48d3ace55db	1165	mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
mimi3	10:b48d3ace55db	1166	dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
mimi3	10:b48d3ace55db	1167	for (c = 0; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
mimi3	10:b48d3ace55db	1168	dp->fs->wflag = 1;
mimi3	10:b48d3ace55db	1169	if (sync_window(dp->fs)) return FR_DISK_ERR;
mimi3	10:b48d3ace55db	1170	dp->fs->winsect++;
mimi3	10:b48d3ace55db	1171	}
mimi3	10:b48d3ace55db	1172	dp->fs->winsect -= c; /* Rewind window offset */
mimi3	10:b48d3ace55db	1173	#else
mimi3	10:b48d3ace55db	1174	if (!stretch) return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
mimi3	10:b48d3ace55db	1175	return FR_NO_FILE; /* Report EOT */
mimi3	10:b48d3ace55db	1176	#endif
mimi3	10:b48d3ace55db	1177	}
mimi3	10:b48d3ace55db	1178	dp->clust = clst; /* Initialize data for new cluster */
mimi3	10:b48d3ace55db	1179	dp->sect = clust2sect(dp->fs, clst);
mimi3	10:b48d3ace55db	1180	}
mimi3	10:b48d3ace55db	1181	}
mimi3	10:b48d3ace55db	1182	}
mimi3	10:b48d3ace55db	1183
mimi3	10:b48d3ace55db	1184	dp->index = (WORD)i; /* Current index */
mimi3	10:b48d3ace55db	1185	dp->dir = dp->fs->win + (i % (SS(dp->fs) / SZ_DIRE)) * SZ_DIRE; /* Current entry in the window */
mimi3	10:b48d3ace55db	1186
mimi3	10:b48d3ace55db	1187	return FR_OK;
mimi3	10:b48d3ace55db	1188	}
mimi3	10:b48d3ace55db	1189
mimi3	10:b48d3ace55db	1190
mimi3	10:b48d3ace55db	1191
mimi3	10:b48d3ace55db	1192
mimi3	10:b48d3ace55db	1193	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1194	/* Directory handling - Reserve directory entry */
mimi3	10:b48d3ace55db	1195	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1196
mimi3	10:b48d3ace55db	1197	#if !_FS_READONLY
mimi3	10:b48d3ace55db	1198	static
mimi3	10:b48d3ace55db	1199	FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
mimi3	10:b48d3ace55db	1200	FATFS_DIR* dp, /* Pointer to the directory object */
mimi3	10:b48d3ace55db	1201	UINT nent /* Number of contiguous entries to allocate (1-21) */
mimi3	10:b48d3ace55db	1202	)
mimi3	10:b48d3ace55db	1203	{
mimi3	10:b48d3ace55db	1204	FRESULT res;
mimi3	10:b48d3ace55db	1205	UINT n;
mimi3	10:b48d3ace55db	1206
mimi3	10:b48d3ace55db	1207
mimi3	10:b48d3ace55db	1208	res = dir_sdi(dp, 0);
mimi3	10:b48d3ace55db	1209	if (res == FR_OK) {
mimi3	10:b48d3ace55db	1210	n = 0;
mimi3	10:b48d3ace55db	1211	do {
mimi3	10:b48d3ace55db	1212	res = move_window(dp->fs, dp->sect);
mimi3	10:b48d3ace55db	1213	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	1214	if (dp->dir[0] == DDEM \|\| dp->dir[0] == 0) { /* Is it a free entry? */
mimi3	10:b48d3ace55db	1215	if (++n == nent) break; /* A block of contiguous free entries is found */
mimi3	10:b48d3ace55db	1216	} else {
mimi3	10:b48d3ace55db	1217	n = 0; /* Not a blank entry. Restart to search */
mimi3	10:b48d3ace55db	1218	}
mimi3	10:b48d3ace55db	1219	res = dir_next(dp, 1); /* Next entry with table stretch enabled */
mimi3	10:b48d3ace55db	1220	} while (res == FR_OK);
mimi3	10:b48d3ace55db	1221	}
mimi3	10:b48d3ace55db	1222	if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
mimi3	10:b48d3ace55db	1223	return res;
mimi3	10:b48d3ace55db	1224	}
mimi3	10:b48d3ace55db	1225	#endif
mimi3	10:b48d3ace55db	1226
mimi3	10:b48d3ace55db	1227
mimi3	10:b48d3ace55db	1228
mimi3	10:b48d3ace55db	1229
mimi3	10:b48d3ace55db	1230	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1231	/* Directory handling - Load/Store start cluster number */
mimi3	10:b48d3ace55db	1232	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1233
mimi3	10:b48d3ace55db	1234	static
mimi3	10:b48d3ace55db	1235	DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
mimi3	10:b48d3ace55db	1236	FATFS* fs, /* Pointer to the fs object */
mimi3	10:b48d3ace55db	1237	const BYTE* dir /* Pointer to the SFN entry */
mimi3	10:b48d3ace55db	1238	)
mimi3	10:b48d3ace55db	1239	{
mimi3	10:b48d3ace55db	1240	DWORD cl;
mimi3	10:b48d3ace55db	1241
mimi3	10:b48d3ace55db	1242	cl = LD_WORD(dir + DIR_FstClusLO);
mimi3	10:b48d3ace55db	1243	if (fs->fs_type == FS_FAT32)
mimi3	10:b48d3ace55db	1244	cl \|= (DWORD)LD_WORD(dir + DIR_FstClusHI) << 16;
mimi3	10:b48d3ace55db	1245
mimi3	10:b48d3ace55db	1246	return cl;
mimi3	10:b48d3ace55db	1247	}
mimi3	10:b48d3ace55db	1248
mimi3	10:b48d3ace55db	1249
mimi3	10:b48d3ace55db	1250	#if !_FS_READONLY
mimi3	10:b48d3ace55db	1251	static
mimi3	10:b48d3ace55db	1252	void st_clust (
mimi3	10:b48d3ace55db	1253	BYTE* dir, /* Pointer to the SFN entry */
mimi3	10:b48d3ace55db	1254	DWORD cl /* Value to be set */
mimi3	10:b48d3ace55db	1255	)
mimi3	10:b48d3ace55db	1256	{
mimi3	10:b48d3ace55db	1257	ST_WORD(dir + DIR_FstClusLO, cl);
mimi3	10:b48d3ace55db	1258	ST_WORD(dir + DIR_FstClusHI, cl >> 16);
mimi3	10:b48d3ace55db	1259	}
mimi3	10:b48d3ace55db	1260	#endif
mimi3	10:b48d3ace55db	1261
mimi3	10:b48d3ace55db	1262
mimi3	10:b48d3ace55db	1263
mimi3	10:b48d3ace55db	1264
mimi3	10:b48d3ace55db	1265	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1266	/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
mimi3	10:b48d3ace55db	1267	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1268	#if _USE_LFN
mimi3	10:b48d3ace55db	1269	static
mimi3	10:b48d3ace55db	1270	const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN characters in the directory entry */
mimi3	10:b48d3ace55db	1271
mimi3	10:b48d3ace55db	1272
mimi3	10:b48d3ace55db	1273	static
mimi3	10:b48d3ace55db	1274	int cmp_lfn ( /* 1:matched, 0:not matched */
mimi3	10:b48d3ace55db	1275	WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
mimi3	10:b48d3ace55db	1276	BYTE* dir /* Pointer to the directory entry containing the part of LFN */
mimi3	10:b48d3ace55db	1277	)
mimi3	10:b48d3ace55db	1278	{
mimi3	10:b48d3ace55db	1279	UINT i, s;
mimi3	10:b48d3ace55db	1280	WCHAR wc, uc;
mimi3	10:b48d3ace55db	1281
mimi3	10:b48d3ace55db	1282
mimi3	10:b48d3ace55db	1283	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
mimi3	10:b48d3ace55db	1284
mimi3	10:b48d3ace55db	1285	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mimi3	10:b48d3ace55db	1286
mimi3	10:b48d3ace55db	1287	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
mimi3	10:b48d3ace55db	1288	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
mimi3	10:b48d3ace55db	1289	if (wc) {
mimi3	10:b48d3ace55db	1290	if (i >= _MAX_LFN \|\| ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) /* Compare it */
mimi3	10:b48d3ace55db	1291	return 0; /* Not matched */
mimi3	10:b48d3ace55db	1292	wc = uc;
mimi3	10:b48d3ace55db	1293	} else {
mimi3	10:b48d3ace55db	1294	if (uc != 0xFFFF) return 0; /* Check filler */
mimi3	10:b48d3ace55db	1295	}
mimi3	10:b48d3ace55db	1296	}
mimi3	10:b48d3ace55db	1297
mimi3	10:b48d3ace55db	1298	if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) /* Last segment matched but different length */
mimi3	10:b48d3ace55db	1299	return 0;
mimi3	10:b48d3ace55db	1300
mimi3	10:b48d3ace55db	1301	return 1; /* The part of LFN matched */
mimi3	10:b48d3ace55db	1302	}
mimi3	10:b48d3ace55db	1303
mimi3	10:b48d3ace55db	1304
mimi3	10:b48d3ace55db	1305
mimi3	10:b48d3ace55db	1306	static
mimi3	10:b48d3ace55db	1307	int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
mimi3	10:b48d3ace55db	1308	WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
mimi3	10:b48d3ace55db	1309	BYTE* dir /* Pointer to the LFN entry */
mimi3	10:b48d3ace55db	1310	)
mimi3	10:b48d3ace55db	1311	{
mimi3	10:b48d3ace55db	1312	UINT i, s;
mimi3	10:b48d3ace55db	1313	WCHAR wc, uc;
mimi3	10:b48d3ace55db	1314
mimi3	10:b48d3ace55db	1315
mimi3	10:b48d3ace55db	1316	if (LD_WORD(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
mimi3	10:b48d3ace55db	1317
mimi3	10:b48d3ace55db	1318	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
mimi3	10:b48d3ace55db	1319
mimi3	10:b48d3ace55db	1320	for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
mimi3	10:b48d3ace55db	1321	uc = LD_WORD(dir + LfnOfs[s]); /* Pick an LFN character */
mimi3	10:b48d3ace55db	1322	if (wc) {
mimi3	10:b48d3ace55db	1323	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mimi3	10:b48d3ace55db	1324	lfnbuf[i++] = wc = uc; /* Store it */
mimi3	10:b48d3ace55db	1325	} else {
mimi3	10:b48d3ace55db	1326	if (uc != 0xFFFF) return 0; /* Check filler */
mimi3	10:b48d3ace55db	1327	}
mimi3	10:b48d3ace55db	1328	}
mimi3	10:b48d3ace55db	1329
mimi3	10:b48d3ace55db	1330	if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
mimi3	10:b48d3ace55db	1331	if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
mimi3	10:b48d3ace55db	1332	lfnbuf[i] = 0;
mimi3	10:b48d3ace55db	1333	}
mimi3	10:b48d3ace55db	1334
mimi3	10:b48d3ace55db	1335	return 1; /* The part of LFN is valid */
mimi3	10:b48d3ace55db	1336	}
mimi3	10:b48d3ace55db	1337
mimi3	10:b48d3ace55db	1338
mimi3	10:b48d3ace55db	1339	#if !_FS_READONLY
mimi3	10:b48d3ace55db	1340	static
mimi3	10:b48d3ace55db	1341	void fit_lfn (
mimi3	10:b48d3ace55db	1342	const WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
mimi3	10:b48d3ace55db	1343	BYTE* dir, /* Pointer to the LFN entry to be processed */
mimi3	10:b48d3ace55db	1344	BYTE ord, /* LFN order (1-20) */
mimi3	10:b48d3ace55db	1345	BYTE sum /* Checksum of the corresponding SFN */
mimi3	10:b48d3ace55db	1346	)
mimi3	10:b48d3ace55db	1347	{
mimi3	10:b48d3ace55db	1348	UINT i, s;
mimi3	10:b48d3ace55db	1349	WCHAR wc;
mimi3	10:b48d3ace55db	1350
mimi3	10:b48d3ace55db	1351
mimi3	10:b48d3ace55db	1352	dir[LDIR_Chksum] = sum; /* Set checksum */
mimi3	10:b48d3ace55db	1353	dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
mimi3	10:b48d3ace55db	1354	dir[LDIR_Type] = 0;
mimi3	10:b48d3ace55db	1355	ST_WORD(dir + LDIR_FstClusLO, 0);
mimi3	10:b48d3ace55db	1356
mimi3	10:b48d3ace55db	1357	i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
mimi3	10:b48d3ace55db	1358	s = wc = 0;
mimi3	10:b48d3ace55db	1359	do {
mimi3	10:b48d3ace55db	1360	if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective character */
mimi3	10:b48d3ace55db	1361	ST_WORD(dir+LfnOfs[s], wc); /* Put it */
mimi3	10:b48d3ace55db	1362	if (!wc) wc = 0xFFFF; /* Padding characters following last character */
mimi3	10:b48d3ace55db	1363	} while (++s < 13);
mimi3	10:b48d3ace55db	1364	if (wc == 0xFFFF \|\| !lfnbuf[i]) ord \|= LLEF; /* Bottom LFN part is the start of LFN sequence */
mimi3	10:b48d3ace55db	1365	dir[LDIR_Ord] = ord; /* Set the LFN order */
mimi3	10:b48d3ace55db	1366	}
mimi3	10:b48d3ace55db	1367
mimi3	10:b48d3ace55db	1368	#endif
mimi3	10:b48d3ace55db	1369	#endif
mimi3	10:b48d3ace55db	1370
mimi3	10:b48d3ace55db	1371
mimi3	10:b48d3ace55db	1372
mimi3	10:b48d3ace55db	1373
mimi3	10:b48d3ace55db	1374	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1375	/* Create numbered name */
mimi3	10:b48d3ace55db	1376	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1377	#if _USE_LFN
mimi3	10:b48d3ace55db	1378	static
mimi3	10:b48d3ace55db	1379	void gen_numname (
mimi3	10:b48d3ace55db	1380	BYTE* dst, /* Pointer to the buffer to store numbered SFN */
mimi3	10:b48d3ace55db	1381	const BYTE* src, /* Pointer to SFN */
mimi3	10:b48d3ace55db	1382	const WCHAR* lfn, /* Pointer to LFN */
mimi3	10:b48d3ace55db	1383	UINT seq /* Sequence number */
mimi3	10:b48d3ace55db	1384	)
mimi3	10:b48d3ace55db	1385	{
mimi3	10:b48d3ace55db	1386	BYTE ns[8], c;
mimi3	10:b48d3ace55db	1387	UINT i, j;
mimi3	10:b48d3ace55db	1388	WCHAR wc;
mimi3	10:b48d3ace55db	1389	DWORD sr;
mimi3	10:b48d3ace55db	1390
mimi3	10:b48d3ace55db	1391
mimi3	10:b48d3ace55db	1392	mem_cpy(dst, src, 11);
mimi3	10:b48d3ace55db	1393
mimi3	10:b48d3ace55db	1394	if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
mimi3	10:b48d3ace55db	1395	sr = seq;
mimi3	10:b48d3ace55db	1396	while (lfn) { / Create a CRC */
mimi3	10:b48d3ace55db	1397	wc = *lfn++;
mimi3	10:b48d3ace55db	1398	for (i = 0; i < 16; i++) {
mimi3	10:b48d3ace55db	1399	sr = (sr << 1) + (wc & 1);
mimi3	10:b48d3ace55db	1400	wc >>= 1;
mimi3	10:b48d3ace55db	1401	if (sr & 0x10000) sr ^= 0x11021;
mimi3	10:b48d3ace55db	1402	}
mimi3	10:b48d3ace55db	1403	}
mimi3	10:b48d3ace55db	1404	seq = (UINT)sr;
mimi3	10:b48d3ace55db	1405	}
mimi3	10:b48d3ace55db	1406
mimi3	10:b48d3ace55db	1407	/* itoa (hexdecimal) */
mimi3	10:b48d3ace55db	1408	i = 7;
mimi3	10:b48d3ace55db	1409	do {
mimi3	10:b48d3ace55db	1410	c = (seq % 16) + '0';
mimi3	10:b48d3ace55db	1411	if (c > '9') c += 7;
mimi3	10:b48d3ace55db	1412	ns[i--] = c;
mimi3	10:b48d3ace55db	1413	seq /= 16;
mimi3	10:b48d3ace55db	1414	} while (seq);
mimi3	10:b48d3ace55db	1415	ns[i] = '~';
mimi3	10:b48d3ace55db	1416
mimi3	10:b48d3ace55db	1417	/* Append the number */
mimi3	10:b48d3ace55db	1418	for (j = 0; j < i && dst[j] != ' '; j++) {
mimi3	10:b48d3ace55db	1419	if (IsDBCS1(dst[j])) {
mimi3	10:b48d3ace55db	1420	if (j == i - 1) break;
mimi3	10:b48d3ace55db	1421	j++;
mimi3	10:b48d3ace55db	1422	}
mimi3	10:b48d3ace55db	1423	}
mimi3	10:b48d3ace55db	1424	do {
mimi3	10:b48d3ace55db	1425	dst[j++] = (i < 8) ? ns[i++] : ' ';
mimi3	10:b48d3ace55db	1426	} while (j < 8);
mimi3	10:b48d3ace55db	1427	}
mimi3	10:b48d3ace55db	1428	#endif
mimi3	10:b48d3ace55db	1429
mimi3	10:b48d3ace55db	1430
mimi3	10:b48d3ace55db	1431
mimi3	10:b48d3ace55db	1432
mimi3	10:b48d3ace55db	1433	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1434	/* Calculate checksum of an SFN entry */
mimi3	10:b48d3ace55db	1435	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1436	#if _USE_LFN
mimi3	10:b48d3ace55db	1437	static
mimi3	10:b48d3ace55db	1438	BYTE sum_sfn (
mimi3	10:b48d3ace55db	1439	const BYTE* dir /* Pointer to the SFN entry */
mimi3	10:b48d3ace55db	1440	)
mimi3	10:b48d3ace55db	1441	{
mimi3	10:b48d3ace55db	1442	BYTE sum = 0;
mimi3	10:b48d3ace55db	1443	UINT n = 11;
mimi3	10:b48d3ace55db	1444
mimi3	10:b48d3ace55db	1445	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
mimi3	10:b48d3ace55db	1446	return sum;
mimi3	10:b48d3ace55db	1447	}
mimi3	10:b48d3ace55db	1448	#endif
mimi3	10:b48d3ace55db	1449
mimi3	10:b48d3ace55db	1450
mimi3	10:b48d3ace55db	1451
mimi3	10:b48d3ace55db	1452
mimi3	10:b48d3ace55db	1453	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1454	/* Directory handling - Find an object in the directory */
mimi3	10:b48d3ace55db	1455	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1456
mimi3	10:b48d3ace55db	1457	static
mimi3	10:b48d3ace55db	1458	FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
mimi3	10:b48d3ace55db	1459	FATFS_DIR* dp /* Pointer to the directory object linked to the file name */
mimi3	10:b48d3ace55db	1460	)
mimi3	10:b48d3ace55db	1461	{
mimi3	10:b48d3ace55db	1462	FRESULT res;
mimi3	10:b48d3ace55db	1463	BYTE c, *dir;
mimi3	10:b48d3ace55db	1464	#if _USE_LFN
mimi3	10:b48d3ace55db	1465	BYTE a, ord, sum;
mimi3	10:b48d3ace55db	1466	#endif
mimi3	10:b48d3ace55db	1467
mimi3	10:b48d3ace55db	1468	res = dir_sdi(dp, 0); /* Rewind directory object */
mimi3	10:b48d3ace55db	1469	if (res != FR_OK) return res;
mimi3	10:b48d3ace55db	1470
mimi3	10:b48d3ace55db	1471	#if _USE_LFN
mimi3	10:b48d3ace55db	1472	ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mimi3	10:b48d3ace55db	1473	#endif
mimi3	10:b48d3ace55db	1474	do {
mimi3	10:b48d3ace55db	1475	res = move_window(dp->fs, dp->sect);
mimi3	10:b48d3ace55db	1476	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	1477	dir = dp->dir; /* Ptr to the directory entry of current index */
mimi3	10:b48d3ace55db	1478	c = dir[DIR_Name];
mimi3	10:b48d3ace55db	1479	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mimi3	10:b48d3ace55db	1480	#if _USE_LFN /* LFN configuration */
mimi3	10:b48d3ace55db	1481	a = dir[DIR_Attr] & AM_MASK;
mimi3	10:b48d3ace55db	1482	if (c == DDEM \|\| ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
mimi3	10:b48d3ace55db	1483	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mimi3	10:b48d3ace55db	1484	} else {
mimi3	10:b48d3ace55db	1485	if (a == AM_LFN) { /* An LFN entry is found */
mimi3	10:b48d3ace55db	1486	if (dp->lfn) {
mimi3	10:b48d3ace55db	1487	if (c & LLEF) { /* Is it start of LFN sequence? */
mimi3	10:b48d3ace55db	1488	sum = dir[LDIR_Chksum];
mimi3	10:b48d3ace55db	1489	c &= ~LLEF; ord = c; /* LFN start order */
mimi3	10:b48d3ace55db	1490	dp->lfn_idx = dp->index; /* Start index of LFN */
mimi3	10:b48d3ace55db	1491	}
mimi3	10:b48d3ace55db	1492	/* Check validity of the LFN entry and compare it with given name */
mimi3	10:b48d3ace55db	1493	ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
mimi3	10:b48d3ace55db	1494	}
mimi3	10:b48d3ace55db	1495	} else { /* An SFN entry is found */
mimi3	10:b48d3ace55db	1496	if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */
mimi3	10:b48d3ace55db	1497	if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) break; /* SFN matched? */
mimi3	10:b48d3ace55db	1498	ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
mimi3	10:b48d3ace55db	1499	}
mimi3	10:b48d3ace55db	1500	}
mimi3	10:b48d3ace55db	1501	#else /* Non LFN configuration */
mimi3	10:b48d3ace55db	1502	if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dp->fn, 11)) /* Is it a valid entry? */
mimi3	10:b48d3ace55db	1503	break;
mimi3	10:b48d3ace55db	1504	#endif
mimi3	10:b48d3ace55db	1505	res = dir_next(dp, 0); /* Next entry */
mimi3	10:b48d3ace55db	1506	} while (res == FR_OK);
mimi3	10:b48d3ace55db	1507
mimi3	10:b48d3ace55db	1508	return res;
mimi3	10:b48d3ace55db	1509	}
mimi3	10:b48d3ace55db	1510
mimi3	10:b48d3ace55db	1511
mimi3	10:b48d3ace55db	1512
mimi3	10:b48d3ace55db	1513
mimi3	10:b48d3ace55db	1514	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1515	/* Read an object from the directory */
mimi3	10:b48d3ace55db	1516	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1517	#if _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2
mimi3	10:b48d3ace55db	1518	static
mimi3	10:b48d3ace55db	1519	FRESULT dir_read (
mimi3	10:b48d3ace55db	1520	FATFS_DIR* dp, /* Pointer to the directory object */
mimi3	10:b48d3ace55db	1521	int vol /* Filtered by 0:file/directory or 1:volume label */
mimi3	10:b48d3ace55db	1522	)
mimi3	10:b48d3ace55db	1523	{
mimi3	10:b48d3ace55db	1524	FRESULT res;
mimi3	10:b48d3ace55db	1525	BYTE a, c, *dir;
mimi3	10:b48d3ace55db	1526	#if _USE_LFN
mimi3	10:b48d3ace55db	1527	BYTE ord = 0xFF, sum = 0xFF;
mimi3	10:b48d3ace55db	1528	#endif
mimi3	10:b48d3ace55db	1529
mimi3	10:b48d3ace55db	1530	res = FR_NO_FILE;
mimi3	10:b48d3ace55db	1531	while (dp->sect) {
mimi3	10:b48d3ace55db	1532	res = move_window(dp->fs, dp->sect);
mimi3	10:b48d3ace55db	1533	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	1534	dir = dp->dir; /* Ptr to the directory entry of current index */
mimi3	10:b48d3ace55db	1535	c = dir[DIR_Name];
mimi3	10:b48d3ace55db	1536	if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
mimi3	10:b48d3ace55db	1537	a = dir[DIR_Attr] & AM_MASK;
mimi3	10:b48d3ace55db	1538	#if _USE_LFN /* LFN configuration */
mimi3	10:b48d3ace55db	1539	if (c == DDEM \|\| (!_FS_RPATH && c == '.') \|\| (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
mimi3	10:b48d3ace55db	1540	ord = 0xFF;
mimi3	10:b48d3ace55db	1541	} else {
mimi3	10:b48d3ace55db	1542	if (a == AM_LFN) { /* An LFN entry is found */
mimi3	10:b48d3ace55db	1543	if (c & LLEF) { /* Is it start of LFN sequence? */
mimi3	10:b48d3ace55db	1544	sum = dir[LDIR_Chksum];
mimi3	10:b48d3ace55db	1545	c &= ~LLEF; ord = c;
mimi3	10:b48d3ace55db	1546	dp->lfn_idx = dp->index;
mimi3	10:b48d3ace55db	1547	}
mimi3	10:b48d3ace55db	1548	/* Check LFN validity and capture it */
mimi3	10:b48d3ace55db	1549	ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
mimi3	10:b48d3ace55db	1550	} else { /* An SFN entry is found */
mimi3	10:b48d3ace55db	1551	if (ord \|\| sum != sum_sfn(dir)) /* Is there a valid LFN? */
mimi3	10:b48d3ace55db	1552	dp->lfn_idx = 0xFFFF; /* It has no LFN. */
mimi3	10:b48d3ace55db	1553	break;
mimi3	10:b48d3ace55db	1554	}
mimi3	10:b48d3ace55db	1555	}
mimi3	10:b48d3ace55db	1556	#else /* Non LFN configuration */
mimi3	10:b48d3ace55db	1557	if (c != DDEM && (_FS_RPATH \|\| c != '.') && a != AM_LFN && (int)((a & ~AM_ARC) == AM_VOL) == vol) /* Is it a valid entry? */
mimi3	10:b48d3ace55db	1558	break;
mimi3	10:b48d3ace55db	1559	#endif
mimi3	10:b48d3ace55db	1560	res = dir_next(dp, 0); /* Next entry */
mimi3	10:b48d3ace55db	1561	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	1562	}
mimi3	10:b48d3ace55db	1563
mimi3	10:b48d3ace55db	1564	if (res != FR_OK) dp->sect = 0;
mimi3	10:b48d3ace55db	1565
mimi3	10:b48d3ace55db	1566	return res;
mimi3	10:b48d3ace55db	1567	}
mimi3	10:b48d3ace55db	1568	#endif /* _FS_MINIMIZE <= 1 \|\| _USE_LABEL \|\| _FS_RPATH >= 2 */
mimi3	10:b48d3ace55db	1569
mimi3	10:b48d3ace55db	1570
mimi3	10:b48d3ace55db	1571
mimi3	10:b48d3ace55db	1572
mimi3	10:b48d3ace55db	1573	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1574	/* Register an object to the directory */
mimi3	10:b48d3ace55db	1575	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1576	#if !_FS_READONLY
mimi3	10:b48d3ace55db	1577	static
mimi3	10:b48d3ace55db	1578	FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */
mimi3	10:b48d3ace55db	1579	FATFS_DIR* dp /* Target directory with object name to be created */
mimi3	10:b48d3ace55db	1580	)
mimi3	10:b48d3ace55db	1581	{
mimi3	10:b48d3ace55db	1582	FRESULT res;
mimi3	10:b48d3ace55db	1583	#if _USE_LFN /* LFN configuration */
mimi3	10:b48d3ace55db	1584	UINT n, nent;
mimi3	10:b48d3ace55db	1585	BYTE sn[12], *fn, sum;
mimi3	10:b48d3ace55db	1586	WCHAR *lfn;
mimi3	10:b48d3ace55db	1587
mimi3	10:b48d3ace55db	1588
mimi3	10:b48d3ace55db	1589	fn = dp->fn; lfn = dp->lfn;
mimi3	10:b48d3ace55db	1590	mem_cpy(sn, fn, 12);
mimi3	10:b48d3ace55db	1591
mimi3	10:b48d3ace55db	1592	if (_FS_RPATH && (sn[NSFLAG] & NS_DOT)) /* Cannot create dot entry */
mimi3	10:b48d3ace55db	1593	return FR_INVALID_NAME;
mimi3	10:b48d3ace55db	1594
mimi3	10:b48d3ace55db	1595	if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
mimi3	10:b48d3ace55db	1596	fn[NSFLAG] = 0; dp->lfn = 0; /* Find only SFN */
mimi3	10:b48d3ace55db	1597	for (n = 1; n < 100; n++) {
mimi3	10:b48d3ace55db	1598	gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
mimi3	10:b48d3ace55db	1599	res = dir_find(dp); /* Check if the name collides with existing SFN */
mimi3	10:b48d3ace55db	1600	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	1601	}
mimi3	10:b48d3ace55db	1602	if (n == 100) return FR_DENIED; /* Abort if too many collisions */
mimi3	10:b48d3ace55db	1603	if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
mimi3	10:b48d3ace55db	1604	fn[NSFLAG] = sn[NSFLAG]; dp->lfn = lfn;
mimi3	10:b48d3ace55db	1605	}
mimi3	10:b48d3ace55db	1606
mimi3	10:b48d3ace55db	1607	if (sn[NSFLAG] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
mimi3	10:b48d3ace55db	1608	for (n = 0; lfn[n]; n++) ;
mimi3	10:b48d3ace55db	1609	nent = (n + 25) / 13;
mimi3	10:b48d3ace55db	1610	} else { /* Otherwise allocate an entry for an SFN */
mimi3	10:b48d3ace55db	1611	nent = 1;
mimi3	10:b48d3ace55db	1612	}
mimi3	10:b48d3ace55db	1613	res = dir_alloc(dp, nent); /* Allocate entries */
mimi3	10:b48d3ace55db	1614
mimi3	10:b48d3ace55db	1615	if (res == FR_OK && --nent) { /* Set LFN entry if needed */
mimi3	10:b48d3ace55db	1616	res = dir_sdi(dp, dp->index - nent);
mimi3	10:b48d3ace55db	1617	if (res == FR_OK) {
mimi3	10:b48d3ace55db	1618	sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
mimi3	10:b48d3ace55db	1619	do { /* Store LFN entries in bottom first */
mimi3	10:b48d3ace55db	1620	res = move_window(dp->fs, dp->sect);
mimi3	10:b48d3ace55db	1621	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	1622	fit_lfn(dp->lfn, dp->dir, (BYTE)nent, sum);
mimi3	10:b48d3ace55db	1623	dp->fs->wflag = 1;
mimi3	10:b48d3ace55db	1624	res = dir_next(dp, 0); /* Next entry */
mimi3	10:b48d3ace55db	1625	} while (res == FR_OK && --nent);
mimi3	10:b48d3ace55db	1626	}
mimi3	10:b48d3ace55db	1627	}
mimi3	10:b48d3ace55db	1628	#else /* Non LFN configuration */
mimi3	10:b48d3ace55db	1629	res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
mimi3	10:b48d3ace55db	1630	#endif
mimi3	10:b48d3ace55db	1631
mimi3	10:b48d3ace55db	1632	if (res == FR_OK) { /* Set SFN entry */
mimi3	10:b48d3ace55db	1633	res = move_window(dp->fs, dp->sect);
mimi3	10:b48d3ace55db	1634	if (res == FR_OK) {
mimi3	10:b48d3ace55db	1635	mem_set(dp->dir, 0, SZ_DIRE); /* Clean the entry */
mimi3	10:b48d3ace55db	1636	mem_cpy(dp->dir, dp->fn, 11); /* Put SFN */
mimi3	10:b48d3ace55db	1637	#if _USE_LFN
mimi3	10:b48d3ace55db	1638	dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY \| NS_EXT); /* Put NT flag */
mimi3	10:b48d3ace55db	1639	#endif
mimi3	10:b48d3ace55db	1640	dp->fs->wflag = 1;
mimi3	10:b48d3ace55db	1641	}
mimi3	10:b48d3ace55db	1642	}
mimi3	10:b48d3ace55db	1643
mimi3	10:b48d3ace55db	1644	return res;
mimi3	10:b48d3ace55db	1645	}
mimi3	10:b48d3ace55db	1646	#endif /* !_FS_READONLY */
mimi3	10:b48d3ace55db	1647
mimi3	10:b48d3ace55db	1648
mimi3	10:b48d3ace55db	1649
mimi3	10:b48d3ace55db	1650
mimi3	10:b48d3ace55db	1651	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1652	/* Remove an object from the directory */
mimi3	10:b48d3ace55db	1653	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1654	#if !_FS_READONLY && !_FS_MINIMIZE
mimi3	10:b48d3ace55db	1655	static
mimi3	10:b48d3ace55db	1656	FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
mimi3	10:b48d3ace55db	1657	FATFS_DIR* dp /* Directory object pointing the entry to be removed */
mimi3	10:b48d3ace55db	1658	)
mimi3	10:b48d3ace55db	1659	{
mimi3	10:b48d3ace55db	1660	FRESULT res;
mimi3	10:b48d3ace55db	1661	#if _USE_LFN /* LFN configuration */
mimi3	10:b48d3ace55db	1662	UINT i;
mimi3	10:b48d3ace55db	1663
mimi3	10:b48d3ace55db	1664	i = dp->index; /* SFN index */
mimi3	10:b48d3ace55db	1665	res = dir_sdi(dp, (dp->lfn_idx == 0xFFFF) ? i : dp->lfn_idx); /* Goto the SFN or top of the LFN entries */
mimi3	10:b48d3ace55db	1666	if (res == FR_OK) {
mimi3	10:b48d3ace55db	1667	do {
mimi3	10:b48d3ace55db	1668	res = move_window(dp->fs, dp->sect);
mimi3	10:b48d3ace55db	1669	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	1670	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mimi3	10:b48d3ace55db	1671	*dp->dir = DDEM;
mimi3	10:b48d3ace55db	1672	dp->fs->wflag = 1;
mimi3	10:b48d3ace55db	1673	if (dp->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */
mimi3	10:b48d3ace55db	1674	res = dir_next(dp, 0); /* Next entry */
mimi3	10:b48d3ace55db	1675	} while (res == FR_OK);
mimi3	10:b48d3ace55db	1676	if (res == FR_NO_FILE) res = FR_INT_ERR;
mimi3	10:b48d3ace55db	1677	}
mimi3	10:b48d3ace55db	1678
mimi3	10:b48d3ace55db	1679	#else /* Non LFN configuration */
mimi3	10:b48d3ace55db	1680	res = dir_sdi(dp, dp->index);
mimi3	10:b48d3ace55db	1681	if (res == FR_OK) {
mimi3	10:b48d3ace55db	1682	res = move_window(dp->fs, dp->sect);
mimi3	10:b48d3ace55db	1683	if (res == FR_OK) {
mimi3	10:b48d3ace55db	1684	mem_set(dp->dir, 0, SZ_DIRE); /* Clear and mark the entry "deleted" */
mimi3	10:b48d3ace55db	1685	*dp->dir = DDEM;
mimi3	10:b48d3ace55db	1686	dp->fs->wflag = 1;
mimi3	10:b48d3ace55db	1687	}
mimi3	10:b48d3ace55db	1688	}
mimi3	10:b48d3ace55db	1689	#endif
mimi3	10:b48d3ace55db	1690
mimi3	10:b48d3ace55db	1691	return res;
mimi3	10:b48d3ace55db	1692	}
mimi3	10:b48d3ace55db	1693	#endif /* !_FS_READONLY */
mimi3	10:b48d3ace55db	1694
mimi3	10:b48d3ace55db	1695
mimi3	10:b48d3ace55db	1696
mimi3	10:b48d3ace55db	1697
mimi3	10:b48d3ace55db	1698	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1699	/* Get file information from directory entry */
mimi3	10:b48d3ace55db	1700	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1701	#if _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2
mimi3	10:b48d3ace55db	1702	static
mimi3	10:b48d3ace55db	1703	void get_fileinfo ( /* No return code */
mimi3	10:b48d3ace55db	1704	FATFS_DIR* dp, /* Pointer to the directory object */
mimi3	10:b48d3ace55db	1705	FILINFO* fno /* Pointer to the file information to be filled */
mimi3	10:b48d3ace55db	1706	)
mimi3	10:b48d3ace55db	1707	{
mimi3	10:b48d3ace55db	1708	UINT i;
mimi3	10:b48d3ace55db	1709	TCHAR *p, c;
mimi3	10:b48d3ace55db	1710	BYTE *dir;
mimi3	10:b48d3ace55db	1711	#if _USE_LFN
mimi3	10:b48d3ace55db	1712	WCHAR w, *lfn;
mimi3	10:b48d3ace55db	1713	#endif
mimi3	10:b48d3ace55db	1714
mimi3	10:b48d3ace55db	1715	p = fno->fname;
mimi3	10:b48d3ace55db	1716	if (dp->sect) { /* Get SFN */
mimi3	10:b48d3ace55db	1717	dir = dp->dir;
mimi3	10:b48d3ace55db	1718	i = 0;
mimi3	10:b48d3ace55db	1719	while (i < 11) { /* Copy name body and extension */
mimi3	10:b48d3ace55db	1720	c = (TCHAR)dir[i++];
mimi3	10:b48d3ace55db	1721	if (c == ' ') continue; /* Skip padding spaces */
mimi3	10:b48d3ace55db	1722	if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
mimi3	10:b48d3ace55db	1723	if (i == 9) p++ = '.'; / Insert a . if extension is exist */
mimi3	10:b48d3ace55db	1724	#if _USE_LFN
mimi3	10:b48d3ace55db	1725	if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9 ? NS_EXT : NS_BODY)))
mimi3	10:b48d3ace55db	1726	c += 0x20; /* To lower */
mimi3	10:b48d3ace55db	1727	#if _LFN_UNICODE
mimi3	10:b48d3ace55db	1728	if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i]))
mimi3	10:b48d3ace55db	1729	c = c << 8 \| dir[i++];
mimi3	10:b48d3ace55db	1730	c = ff_convert(c, 1); /* OEM -> Unicode */
mimi3	10:b48d3ace55db	1731	if (!c) c = '?';
mimi3	10:b48d3ace55db	1732	#endif
mimi3	10:b48d3ace55db	1733	#endif
mimi3	10:b48d3ace55db	1734	*p++ = c;
mimi3	10:b48d3ace55db	1735	}
mimi3	10:b48d3ace55db	1736	fno->fattrib = dir[DIR_Attr]; /* Attribute */
mimi3	10:b48d3ace55db	1737	fno->fsize = LD_DWORD(dir + DIR_FileSize); /* Size */
mimi3	10:b48d3ace55db	1738	fno->fdate = LD_WORD(dir + DIR_WrtDate); /* Date */
mimi3	10:b48d3ace55db	1739	fno->ftime = LD_WORD(dir + DIR_WrtTime); /* Time */
mimi3	10:b48d3ace55db	1740	}
mimi3	10:b48d3ace55db	1741	p = 0; / Terminate SFN string by a \0 */
mimi3	10:b48d3ace55db	1742
mimi3	10:b48d3ace55db	1743	#if _USE_LFN
mimi3	10:b48d3ace55db	1744	if (fno->lfname) {
mimi3	10:b48d3ace55db	1745	i = 0; p = fno->lfname;
mimi3	10:b48d3ace55db	1746	if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
mimi3	10:b48d3ace55db	1747	lfn = dp->lfn;
mimi3	10:b48d3ace55db	1748	while ((w = lfn++) != 0) { / Get an LFN character */
mimi3	10:b48d3ace55db	1749	#if !_LFN_UNICODE
mimi3	10:b48d3ace55db	1750	w = ff_convert(w, 0); /* Unicode -> OEM */
mimi3	10:b48d3ace55db	1751	if (!w) { i = 0; break; } /* No LFN if it could not be converted */
mimi3	10:b48d3ace55db	1752	if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
mimi3	10:b48d3ace55db	1753	p[i++] = (TCHAR)(w >> 8);
mimi3	10:b48d3ace55db	1754	#endif
mimi3	10:b48d3ace55db	1755	if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
mimi3	10:b48d3ace55db	1756	p[i++] = (TCHAR)w;
mimi3	10:b48d3ace55db	1757	}
mimi3	10:b48d3ace55db	1758	}
mimi3	10:b48d3ace55db	1759	p[i] = 0; /* Terminate LFN string by a \0 */
mimi3	10:b48d3ace55db	1760	}
mimi3	10:b48d3ace55db	1761	#endif
mimi3	10:b48d3ace55db	1762	}
mimi3	10:b48d3ace55db	1763	#endif /* _FS_MINIMIZE <= 1 \|\| _FS_RPATH >= 2 */
mimi3	10:b48d3ace55db	1764
mimi3	10:b48d3ace55db	1765
mimi3	10:b48d3ace55db	1766
mimi3	10:b48d3ace55db	1767
mimi3	10:b48d3ace55db	1768	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1769	/* Pattern matching */
mimi3	10:b48d3ace55db	1770	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1771	#if _USE_FIND && _FS_MINIMIZE <= 1
mimi3	10:b48d3ace55db	1772	static
mimi3	10:b48d3ace55db	1773	WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
mimi3	10:b48d3ace55db	1774	const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
mimi3	10:b48d3ace55db	1775	)
mimi3	10:b48d3ace55db	1776	{
mimi3	10:b48d3ace55db	1777	WCHAR chr;
mimi3	10:b48d3ace55db	1778
mimi3	10:b48d3ace55db	1779	#if !_LFN_UNICODE
mimi3	10:b48d3ace55db	1780	chr = (BYTE)(ptr)++; /* Get a byte */
mimi3	10:b48d3ace55db	1781	if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
mimi3	10:b48d3ace55db	1782	if (IsDBCS1(chr) && IsDBCS2(*ptr)) / Get DBC 2nd byte if needed */
mimi3	10:b48d3ace55db	1783	chr = chr << 8 \| (BYTE)(ptr)++;
mimi3	10:b48d3ace55db	1784	#ifdef _EXCVT
mimi3	10:b48d3ace55db	1785	if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
mimi3	10:b48d3ace55db	1786	#endif
mimi3	10:b48d3ace55db	1787	#else
mimi3	10:b48d3ace55db	1788	chr = ff_wtoupper((ptr)++); /* Get a word and to upper */
mimi3	10:b48d3ace55db	1789	#endif
mimi3	10:b48d3ace55db	1790	return chr;
mimi3	10:b48d3ace55db	1791	}
mimi3	10:b48d3ace55db	1792
mimi3	10:b48d3ace55db	1793
mimi3	10:b48d3ace55db	1794	static
mimi3	10:b48d3ace55db	1795	int pattern_matching ( /* 0:mismatched, 1:matched */
mimi3	10:b48d3ace55db	1796	const TCHAR* pat, /* Matching pattern */
mimi3	10:b48d3ace55db	1797	const TCHAR* nam, /* String to be tested */
mimi3	10:b48d3ace55db	1798	int skip, /* Number of pre-skip chars (number of ?s) */
mimi3	10:b48d3ace55db	1799	int inf /* Infinite search (* specified) */
mimi3	10:b48d3ace55db	1800	)
mimi3	10:b48d3ace55db	1801	{
mimi3	10:b48d3ace55db	1802	const TCHAR pp, np;
mimi3	10:b48d3ace55db	1803	WCHAR pc, nc;
mimi3	10:b48d3ace55db	1804	int nm, nx;
mimi3	10:b48d3ace55db	1805
mimi3	10:b48d3ace55db	1806
mimi3	10:b48d3ace55db	1807	while (skip--) { /* Pre-skip name chars */
mimi3	10:b48d3ace55db	1808	if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
mimi3	10:b48d3ace55db	1809	}
mimi3	10:b48d3ace55db	1810	if (!pat && inf) return 1; / (short circuit) */
mimi3	10:b48d3ace55db	1811
mimi3	10:b48d3ace55db	1812	do {
mimi3	10:b48d3ace55db	1813	pp = pat; np = nam; /* Top of pattern and name to match */
mimi3	10:b48d3ace55db	1814	for (;;) {
mimi3	10:b48d3ace55db	1815	if (pp == '?' \|\| pp == '') { / Wildcard? */
mimi3	10:b48d3ace55db	1816	nm = nx = 0;
mimi3	10:b48d3ace55db	1817	do { /* Analyze the wildcard chars */
mimi3	10:b48d3ace55db	1818	if (*pp++ == '?') nm++; else nx = 1;
mimi3	10:b48d3ace55db	1819	} while (pp == '?' \|\| pp == '*');
mimi3	10:b48d3ace55db	1820	if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */
mimi3	10:b48d3ace55db	1821	nc = np; break; / Branch mismatched */
mimi3	10:b48d3ace55db	1822	}
mimi3	10:b48d3ace55db	1823	pc = get_achar(&pp); /* Get a pattern char */
mimi3	10:b48d3ace55db	1824	nc = get_achar(&np); /* Get a name char */
mimi3	10:b48d3ace55db	1825	if (pc != nc) break; /* Branch mismatched? */
mimi3	10:b48d3ace55db	1826	if (!pc) return 1; /* Branch matched? (matched at end of both strings) */
mimi3	10:b48d3ace55db	1827	}
mimi3	10:b48d3ace55db	1828	get_achar(&nam); /* nam++ */
mimi3	10:b48d3ace55db	1829	} while (inf && nc); /* Retry until end of name if infinite search is specified */
mimi3	10:b48d3ace55db	1830
mimi3	10:b48d3ace55db	1831	return 0;
mimi3	10:b48d3ace55db	1832	}
mimi3	10:b48d3ace55db	1833	#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
mimi3	10:b48d3ace55db	1834
mimi3	10:b48d3ace55db	1835
mimi3	10:b48d3ace55db	1836
mimi3	10:b48d3ace55db	1837
mimi3	10:b48d3ace55db	1838	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1839	/* Pick a top segment and create the object name in directory form */
mimi3	10:b48d3ace55db	1840	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	1841
mimi3	10:b48d3ace55db	1842	static
mimi3	10:b48d3ace55db	1843	FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
mimi3	10:b48d3ace55db	1844	FATFS_DIR* dp, /* Pointer to the directory object */
mimi3	10:b48d3ace55db	1845	const TCHAR** path /* Pointer to pointer to the segment in the path string */
mimi3	10:b48d3ace55db	1846	)
mimi3	10:b48d3ace55db	1847	{
mimi3	10:b48d3ace55db	1848	#if _USE_LFN /* LFN configuration */
mimi3	10:b48d3ace55db	1849	BYTE b, cf;
mimi3	10:b48d3ace55db	1850	WCHAR w, *lfn;
mimi3	10:b48d3ace55db	1851	UINT i, ni, si, di;
mimi3	10:b48d3ace55db	1852	const TCHAR *p;
mimi3	10:b48d3ace55db	1853
mimi3	10:b48d3ace55db	1854	/* Create LFN in Unicode */
mimi3	10:b48d3ace55db	1855	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Strip duplicated separator */
mimi3	10:b48d3ace55db	1856	lfn = dp->lfn;
mimi3	10:b48d3ace55db	1857	si = di = 0;
mimi3	10:b48d3ace55db	1858	for (;;) {
mimi3	10:b48d3ace55db	1859	w = p[si++]; /* Get a character */
mimi3	10:b48d3ace55db	1860	if (w < ' ' \|\| w == '/' \|\| w == '\\') break; /* Break on end of segment */
mimi3	10:b48d3ace55db	1861	if (di >= _MAX_LFN) /* Reject too long name */
mimi3	10:b48d3ace55db	1862	return FR_INVALID_NAME;
mimi3	10:b48d3ace55db	1863	#if !_LFN_UNICODE
mimi3	10:b48d3ace55db	1864	w &= 0xFF;
mimi3	10:b48d3ace55db	1865	if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
mimi3	10:b48d3ace55db	1866	b = (BYTE)p[si++]; /* Get 2nd byte */
mimi3	10:b48d3ace55db	1867	w = (w << 8) + b; /* Create a DBC */
mimi3	10:b48d3ace55db	1868	if (!IsDBCS2(b))
mimi3	10:b48d3ace55db	1869	return FR_INVALID_NAME; /* Reject invalid sequence */
mimi3	10:b48d3ace55db	1870	}
mimi3	10:b48d3ace55db	1871	w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
mimi3	10:b48d3ace55db	1872	if (!w) return FR_INVALID_NAME; /* Reject invalid code */
mimi3	10:b48d3ace55db	1873	#endif
mimi3	10:b48d3ace55db	1874	if (w < 0x80 && chk_chr("\":<>\?\|\x7F", w)) / Reject illegal characters for LFN */
mimi3	10:b48d3ace55db	1875	return FR_INVALID_NAME;
mimi3	10:b48d3ace55db	1876	lfn[di++] = w; /* Store the Unicode character */
mimi3	10:b48d3ace55db	1877	}
mimi3	10:b48d3ace55db	1878	path = &p[si]; / Return pointer to the next segment */
mimi3	10:b48d3ace55db	1879	cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mimi3	10:b48d3ace55db	1880	#if _FS_RPATH
mimi3	10:b48d3ace55db	1881	if ((di == 1 && lfn[di - 1] == '.') \|\|
mimi3	10:b48d3ace55db	1882	(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot entry? */
mimi3	10:b48d3ace55db	1883	lfn[di] = 0;
mimi3	10:b48d3ace55db	1884	for (i = 0; i < 11; i++) /* Create dot name for SFN entry */
mimi3	10:b48d3ace55db	1885	dp->fn[i] = (i < di) ? '.' : ' ';
mimi3	10:b48d3ace55db	1886	dp->fn[i] = cf \| NS_DOT; /* This is a dot entry */
mimi3	10:b48d3ace55db	1887	return FR_OK;
mimi3	10:b48d3ace55db	1888	}
mimi3	10:b48d3ace55db	1889	#endif
mimi3	10:b48d3ace55db	1890	while (di) { /* Snip off trailing spaces and dots if exist */
mimi3	10:b48d3ace55db	1891	w = lfn[di - 1];
mimi3	10:b48d3ace55db	1892	if (w != ' ' && w != '.') break;
mimi3	10:b48d3ace55db	1893	di--;
mimi3	10:b48d3ace55db	1894	}
mimi3	10:b48d3ace55db	1895	if (!di) return FR_INVALID_NAME; /* Reject nul string */
mimi3	10:b48d3ace55db	1896	lfn[di] = 0; /* LFN is created */
mimi3	10:b48d3ace55db	1897
mimi3	10:b48d3ace55db	1898	/* Create SFN in directory form */
mimi3	10:b48d3ace55db	1899	mem_set(dp->fn, ' ', 11);
mimi3	10:b48d3ace55db	1900	for (si = 0; lfn[si] == ' ' \|\| lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
mimi3	10:b48d3ace55db	1901	if (si) cf \|= NS_LOSS \| NS_LFN;
mimi3	10:b48d3ace55db	1902	while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
mimi3	10:b48d3ace55db	1903
mimi3	10:b48d3ace55db	1904	b = i = 0; ni = 8;
mimi3	10:b48d3ace55db	1905	for (;;) {
mimi3	10:b48d3ace55db	1906	w = lfn[si++]; /* Get an LFN character */
mimi3	10:b48d3ace55db	1907	if (!w) break; /* Break on end of the LFN */
mimi3	10:b48d3ace55db	1908	if (w == ' ' \|\| (w == '.' && si != di)) { /* Remove spaces and dots */
mimi3	10:b48d3ace55db	1909	cf \|= NS_LOSS \| NS_LFN; continue;
mimi3	10:b48d3ace55db	1910	}
mimi3	10:b48d3ace55db	1911
mimi3	10:b48d3ace55db	1912	if (i >= ni \|\| si == di) { /* Extension or end of SFN */
mimi3	10:b48d3ace55db	1913	if (ni == 11) { /* Long extension */
mimi3	10:b48d3ace55db	1914	cf \|= NS_LOSS \| NS_LFN; break;
mimi3	10:b48d3ace55db	1915	}
mimi3	10:b48d3ace55db	1916	if (si != di) cf \|= NS_LOSS \| NS_LFN; /* Out of 8.3 format */
mimi3	10:b48d3ace55db	1917	if (si > di) break; /* No extension */
mimi3	10:b48d3ace55db	1918	si = di; i = 8; ni = 11; /* Enter extension section */
mimi3	10:b48d3ace55db	1919	b <<= 2; continue;
mimi3	10:b48d3ace55db	1920	}
mimi3	10:b48d3ace55db	1921
mimi3	10:b48d3ace55db	1922	if (w >= 0x80) { /* Non ASCII character */
mimi3	10:b48d3ace55db	1923	#ifdef _EXCVT
mimi3	10:b48d3ace55db	1924	w = ff_convert(w, 0); /* Unicode -> OEM code */
mimi3	10:b48d3ace55db	1925	if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
mimi3	10:b48d3ace55db	1926	#else
mimi3	10:b48d3ace55db	1927	w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
mimi3	10:b48d3ace55db	1928	#endif
mimi3	10:b48d3ace55db	1929	cf \|= NS_LFN; /* Force create LFN entry */
mimi3	10:b48d3ace55db	1930	}
mimi3	10:b48d3ace55db	1931
mimi3	10:b48d3ace55db	1932	if (_DF1S && w >= 0x100) { /* Is this DBC? (always false at SBCS cfg) */
mimi3	10:b48d3ace55db	1933	if (i >= ni - 1) {
mimi3	10:b48d3ace55db	1934	cf \|= NS_LOSS \| NS_LFN; i = ni; continue;
mimi3	10:b48d3ace55db	1935	}
mimi3	10:b48d3ace55db	1936	dp->fn[i++] = (BYTE)(w >> 8);
mimi3	10:b48d3ace55db	1937	} else { /* SBC */
mimi3	10:b48d3ace55db	1938	if (!w \|\| chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
mimi3	10:b48d3ace55db	1939	w = '_'; cf \|= NS_LOSS \| NS_LFN;/* Lossy conversion */
mimi3	10:b48d3ace55db	1940	} else {
mimi3	10:b48d3ace55db	1941	if (IsUpper(w)) { /* ASCII large capital */
mimi3	10:b48d3ace55db	1942	b \|= 2;
mimi3	10:b48d3ace55db	1943	} else {
mimi3	10:b48d3ace55db	1944	if (IsLower(w)) { /* ASCII small capital */
mimi3	10:b48d3ace55db	1945	b \|= 1; w -= 0x20;
mimi3	10:b48d3ace55db	1946	}
mimi3	10:b48d3ace55db	1947	}
mimi3	10:b48d3ace55db	1948	}
mimi3	10:b48d3ace55db	1949	}
mimi3	10:b48d3ace55db	1950	dp->fn[i++] = (BYTE)w;
mimi3	10:b48d3ace55db	1951	}
mimi3	10:b48d3ace55db	1952
mimi3	10:b48d3ace55db	1953	if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
mimi3	10:b48d3ace55db	1954
mimi3	10:b48d3ace55db	1955	if (ni == 8) b <<= 2;
mimi3	10:b48d3ace55db	1956	if ((b & 0x0C) == 0x0C \|\| (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */
mimi3	10:b48d3ace55db	1957	cf \|= NS_LFN;
mimi3	10:b48d3ace55db	1958	if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
mimi3	10:b48d3ace55db	1959	if ((b & 0x03) == 0x01) cf \|= NS_EXT; /* NT flag (Extension has only small capital) */
mimi3	10:b48d3ace55db	1960	if ((b & 0x0C) == 0x04) cf \|= NS_BODY; /* NT flag (Filename has only small capital) */
mimi3	10:b48d3ace55db	1961	}
mimi3	10:b48d3ace55db	1962
mimi3	10:b48d3ace55db	1963	dp->fn[NSFLAG] = cf; /* SFN is created */
mimi3	10:b48d3ace55db	1964
mimi3	10:b48d3ace55db	1965	return FR_OK;
mimi3	10:b48d3ace55db	1966
mimi3	10:b48d3ace55db	1967
mimi3	10:b48d3ace55db	1968	#else /* Non-LFN configuration */
mimi3	10:b48d3ace55db	1969	BYTE b, c, d, *sfn;
mimi3	10:b48d3ace55db	1970	UINT ni, si, i;
mimi3	10:b48d3ace55db	1971	const char *p;
mimi3	10:b48d3ace55db	1972
mimi3	10:b48d3ace55db	1973	/* Create file name in directory form */
mimi3	10:b48d3ace55db	1974	for (p = path; p == '/' \|\| p == '\\'; p++) ; / Skip duplicated separator */
mimi3	10:b48d3ace55db	1975	sfn = dp->fn;
mimi3	10:b48d3ace55db	1976	mem_set(sfn, ' ', 11);
mimi3	10:b48d3ace55db	1977	si = i = b = 0; ni = 8;
mimi3	10:b48d3ace55db	1978	#if _FS_RPATH
mimi3	10:b48d3ace55db	1979	if (p[si] == '.') { /* Is this a dot entry? */
mimi3	10:b48d3ace55db	1980	for (;;) {
mimi3	10:b48d3ace55db	1981	c = (BYTE)p[si++];
mimi3	10:b48d3ace55db	1982	if (c != '.' \|\| si >= 3) break;
mimi3	10:b48d3ace55db	1983	sfn[i++] = c;
mimi3	10:b48d3ace55db	1984	}
mimi3	10:b48d3ace55db	1985	if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
mimi3	10:b48d3ace55db	1986	path = &p[si]; / Return pointer to the next segment */
mimi3	10:b48d3ace55db	1987	sfn[NSFLAG] = (c <= ' ') ? NS_LAST \| NS_DOT : NS_DOT; /* Set last segment flag if end of path */
mimi3	10:b48d3ace55db	1988	return FR_OK;
mimi3	10:b48d3ace55db	1989	}
mimi3	10:b48d3ace55db	1990	#endif
mimi3	10:b48d3ace55db	1991	for (;;) {
mimi3	10:b48d3ace55db	1992	c = (BYTE)p[si++];
mimi3	10:b48d3ace55db	1993	if (c <= ' ' \|\| c == '/' \|\| c == '\\') break; /* Break on end of segment */
mimi3	10:b48d3ace55db	1994	if (c == '.' \|\| i >= ni) {
mimi3	10:b48d3ace55db	1995	if (ni != 8 \|\| c != '.') return FR_INVALID_NAME;
mimi3	10:b48d3ace55db	1996	i = 8; ni = 11;
mimi3	10:b48d3ace55db	1997	b <<= 2; continue;
mimi3	10:b48d3ace55db	1998	}
mimi3	10:b48d3ace55db	1999	if (c >= 0x80) { /* Extended character? */
mimi3	10:b48d3ace55db	2000	b \|= 3; /* Eliminate NT flag */
mimi3	10:b48d3ace55db	2001	#ifdef _EXCVT
mimi3	10:b48d3ace55db	2002	c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
mimi3	10:b48d3ace55db	2003	#else
mimi3	10:b48d3ace55db	2004	#if !_DF1S
mimi3	10:b48d3ace55db	2005	return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
mimi3	10:b48d3ace55db	2006	#endif
mimi3	10:b48d3ace55db	2007	#endif
mimi3	10:b48d3ace55db	2008	}
mimi3	10:b48d3ace55db	2009	if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */
mimi3	10:b48d3ace55db	2010	d = (BYTE)p[si++]; /* Get 2nd byte */
mimi3	10:b48d3ace55db	2011	if (!IsDBCS2(d) \|\| i >= ni - 1) /* Reject invalid DBC */
mimi3	10:b48d3ace55db	2012	return FR_INVALID_NAME;
mimi3	10:b48d3ace55db	2013	sfn[i++] = c;
mimi3	10:b48d3ace55db	2014	sfn[i++] = d;
mimi3	10:b48d3ace55db	2015	} else { /* SBC */
mimi3	10:b48d3ace55db	2016	if (chk_chr("\"+,:;<=>\?[]\|\x7F", c)) / Reject illegal chrs for SFN */
mimi3	10:b48d3ace55db	2017	return FR_INVALID_NAME;
mimi3	10:b48d3ace55db	2018	if (IsUpper(c)) { /* ASCII large capital? */
mimi3	10:b48d3ace55db	2019	b \|= 2;
mimi3	10:b48d3ace55db	2020	} else {
mimi3	10:b48d3ace55db	2021	if (IsLower(c)) { /* ASCII small capital? */
mimi3	10:b48d3ace55db	2022	b \|= 1; c -= 0x20;
mimi3	10:b48d3ace55db	2023	}
mimi3	10:b48d3ace55db	2024	}
mimi3	10:b48d3ace55db	2025	sfn[i++] = c;
mimi3	10:b48d3ace55db	2026	}
mimi3	10:b48d3ace55db	2027	}
mimi3	10:b48d3ace55db	2028	path = &p[si]; / Return pointer to the next segment */
mimi3	10:b48d3ace55db	2029	c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
mimi3	10:b48d3ace55db	2030
mimi3	10:b48d3ace55db	2031	if (!i) return FR_INVALID_NAME; /* Reject nul string */
mimi3	10:b48d3ace55db	2032	if (sfn[0] == DDEM) sfn[0] = RDDEM; /* When first character collides with DDEM, replace it with RDDEM */
mimi3	10:b48d3ace55db	2033
mimi3	10:b48d3ace55db	2034	if (ni == 8) b <<= 2;
mimi3	10:b48d3ace55db	2035	if ((b & 0x03) == 0x01) c \|= NS_EXT; /* NT flag (Name extension has only small capital) */
mimi3	10:b48d3ace55db	2036	if ((b & 0x0C) == 0x04) c \|= NS_BODY; /* NT flag (Name body has only small capital) */
mimi3	10:b48d3ace55db	2037
mimi3	10:b48d3ace55db	2038	sfn[NSFLAG] = c; /* Store NT flag, File name is created */
mimi3	10:b48d3ace55db	2039
mimi3	10:b48d3ace55db	2040	return FR_OK;
mimi3	10:b48d3ace55db	2041	#endif
mimi3	10:b48d3ace55db	2042	}
mimi3	10:b48d3ace55db	2043
mimi3	10:b48d3ace55db	2044
mimi3	10:b48d3ace55db	2045
mimi3	10:b48d3ace55db	2046
mimi3	10:b48d3ace55db	2047	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2048	/* Follow a file path */
mimi3	10:b48d3ace55db	2049	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2050
mimi3	10:b48d3ace55db	2051	static
mimi3	10:b48d3ace55db	2052	FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
mimi3	10:b48d3ace55db	2053	FATFS_DIR* dp, /* Directory object to return last directory and found object */
mimi3	10:b48d3ace55db	2054	const TCHAR* path /* Full-path string to find a file or directory */
mimi3	10:b48d3ace55db	2055	)
mimi3	10:b48d3ace55db	2056	{
mimi3	10:b48d3ace55db	2057	FRESULT res;
mimi3	10:b48d3ace55db	2058	BYTE *dir, ns;
mimi3	10:b48d3ace55db	2059
mimi3	10:b48d3ace55db	2060
mimi3	10:b48d3ace55db	2061	#if _FS_RPATH
mimi3	10:b48d3ace55db	2062	if (path == '/' \|\| path == '\\') { /* There is a heading separator */
mimi3	10:b48d3ace55db	2063	path++; dp->sclust = 0; /* Strip it and start from the root directory */
mimi3	10:b48d3ace55db	2064	} else { /* No heading separator */
mimi3	10:b48d3ace55db	2065	dp->sclust = dp->fs->cdir; /* Start from the current directory */
mimi3	10:b48d3ace55db	2066	}
mimi3	10:b48d3ace55db	2067	#else
mimi3	10:b48d3ace55db	2068	if (path == '/' \|\| path == '\\') /* Strip heading separator if exist */
mimi3	10:b48d3ace55db	2069	path++;
mimi3	10:b48d3ace55db	2070	dp->sclust = 0; /* Always start from the root directory */
mimi3	10:b48d3ace55db	2071	#endif
mimi3	10:b48d3ace55db	2072
mimi3	10:b48d3ace55db	2073	if ((UINT)path < ' ') { / Null path name is the origin directory itself */
mimi3	10:b48d3ace55db	2074	res = dir_sdi(dp, 0);
mimi3	10:b48d3ace55db	2075	dp->dir = 0;
mimi3	10:b48d3ace55db	2076	} else { /* Follow path */
mimi3	10:b48d3ace55db	2077	for (;;) {
mimi3	10:b48d3ace55db	2078	res = create_name(dp, &path); /* Get a segment name of the path */
mimi3	10:b48d3ace55db	2079	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	2080	res = dir_find(dp); /* Find an object with the sagment name */
mimi3	10:b48d3ace55db	2081	ns = dp->fn[NSFLAG];
mimi3	10:b48d3ace55db	2082	if (res != FR_OK) { /* Failed to find the object */
mimi3	10:b48d3ace55db	2083	if (res == FR_NO_FILE) { /* Object is not found */
mimi3	10:b48d3ace55db	2084	if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, */
mimi3	10:b48d3ace55db	2085	dp->sclust = 0; dp->dir = 0; /* it is the root directory and stay there */
mimi3	10:b48d3ace55db	2086	if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
mimi3	10:b48d3ace55db	2087	res = FR_OK; /* Ended at the root directroy. Function completed. */
mimi3	10:b48d3ace55db	2088	} else { /* Could not find the object */
mimi3	10:b48d3ace55db	2089	if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
mimi3	10:b48d3ace55db	2090	}
mimi3	10:b48d3ace55db	2091	}
mimi3	10:b48d3ace55db	2092	break;
mimi3	10:b48d3ace55db	2093	}
mimi3	10:b48d3ace55db	2094	if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
mimi3	10:b48d3ace55db	2095	dir = dp->dir; /* Follow the sub-directory */
mimi3	10:b48d3ace55db	2096	if (!(dir[DIR_Attr] & AM_DIR)) { /* It is not a sub-directory and cannot follow */
mimi3	10:b48d3ace55db	2097	res = FR_NO_PATH; break;
mimi3	10:b48d3ace55db	2098	}
mimi3	10:b48d3ace55db	2099	dp->sclust = ld_clust(dp->fs, dir);
mimi3	10:b48d3ace55db	2100	}
mimi3	10:b48d3ace55db	2101	}
mimi3	10:b48d3ace55db	2102
mimi3	10:b48d3ace55db	2103	return res;
mimi3	10:b48d3ace55db	2104	}
mimi3	10:b48d3ace55db	2105
mimi3	10:b48d3ace55db	2106
mimi3	10:b48d3ace55db	2107
mimi3	10:b48d3ace55db	2108
mimi3	10:b48d3ace55db	2109	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2110	/* Get logical drive number from path name */
mimi3	10:b48d3ace55db	2111	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2112
mimi3	10:b48d3ace55db	2113	static
mimi3	10:b48d3ace55db	2114	int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
mimi3	10:b48d3ace55db	2115	const TCHAR** path /* Pointer to pointer to the path name */
mimi3	10:b48d3ace55db	2116	)
mimi3	10:b48d3ace55db	2117	{
mimi3	10:b48d3ace55db	2118	const TCHAR tp, tt;
mimi3	10:b48d3ace55db	2119	UINT i;
mimi3	10:b48d3ace55db	2120	int vol = -1;
mimi3	10:b48d3ace55db	2121	#if _STR_VOLUME_ID /* Find string drive id */
mimi3	10:b48d3ace55db	2122	static const char* const str[] = {_VOLUME_STRS};
mimi3	10:b48d3ace55db	2123	const char *sp;
mimi3	10:b48d3ace55db	2124	char c;
mimi3	10:b48d3ace55db	2125	TCHAR tc;
mimi3	10:b48d3ace55db	2126	#endif
mimi3	10:b48d3ace55db	2127
mimi3	10:b48d3ace55db	2128
mimi3	10:b48d3ace55db	2129	if (path) { / If the pointer is not a null */
mimi3	10:b48d3ace55db	2130	for (tt = path; (UINT)tt >= (_USE_LFN ? ' ' : '!') && tt != ':'; tt++) ; / Find ':' in the path */
mimi3	10:b48d3ace55db	2131	if (tt == ':') { / If a ':' is exist in the path name */
mimi3	10:b48d3ace55db	2132	tp = *path;
mimi3	10:b48d3ace55db	2133	i = *tp++ - '0';
mimi3	10:b48d3ace55db	2134	if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
mimi3	10:b48d3ace55db	2135	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mimi3	10:b48d3ace55db	2136	vol = (int)i;
mimi3	10:b48d3ace55db	2137	*path = ++tt;
mimi3	10:b48d3ace55db	2138	}
mimi3	10:b48d3ace55db	2139	}
mimi3	10:b48d3ace55db	2140	#if _STR_VOLUME_ID
mimi3	10:b48d3ace55db	2141	else { /* No numeric drive number, find string drive id */
mimi3	10:b48d3ace55db	2142	i = 0; tt++;
mimi3	10:b48d3ace55db	2143	do {
mimi3	10:b48d3ace55db	2144	sp = str[i]; tp = *path;
mimi3	10:b48d3ace55db	2145	do { /* Compare a string drive id with path name */
mimi3	10:b48d3ace55db	2146	c = sp++; tc = tp++;
mimi3	10:b48d3ace55db	2147	if (IsLower(tc)) tc -= 0x20;
mimi3	10:b48d3ace55db	2148	} while (c && (TCHAR)c == tc);
mimi3	10:b48d3ace55db	2149	} while ((c \|\| tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
mimi3	10:b48d3ace55db	2150	if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
mimi3	10:b48d3ace55db	2151	vol = (int)i;
mimi3	10:b48d3ace55db	2152	*path = tt;
mimi3	10:b48d3ace55db	2153	}
mimi3	10:b48d3ace55db	2154	}
mimi3	10:b48d3ace55db	2155	#endif
mimi3	10:b48d3ace55db	2156	return vol;
mimi3	10:b48d3ace55db	2157	}
mimi3	10:b48d3ace55db	2158	#if _FS_RPATH && _VOLUMES >= 2
mimi3	10:b48d3ace55db	2159	vol = CurrVol; /* Current drive */
mimi3	10:b48d3ace55db	2160	#else
mimi3	10:b48d3ace55db	2161	vol = 0; /* Drive 0 */
mimi3	10:b48d3ace55db	2162	#endif
mimi3	10:b48d3ace55db	2163	}
mimi3	10:b48d3ace55db	2164	return vol;
mimi3	10:b48d3ace55db	2165	}
mimi3	10:b48d3ace55db	2166
mimi3	10:b48d3ace55db	2167
mimi3	10:b48d3ace55db	2168
mimi3	10:b48d3ace55db	2169
mimi3	10:b48d3ace55db	2170	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2171	/* Load a sector and check if it is an FAT boot sector */
mimi3	10:b48d3ace55db	2172	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2173
mimi3	10:b48d3ace55db	2174	static
mimi3	10:b48d3ace55db	2175	BYTE check_fs ( /* 0:Valid FAT-BS, 1:Valid BS but not FAT, 2:Not a BS, 3:Disk error */
mimi3	10:b48d3ace55db	2176	FATFS* fs, /* File system object */
mimi3	10:b48d3ace55db	2177	DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
mimi3	10:b48d3ace55db	2178	)
mimi3	10:b48d3ace55db	2179	{
mimi3	10:b48d3ace55db	2180	fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
mimi3	10:b48d3ace55db	2181	if (move_window(fs, sect) != FR_OK) /* Load boot record */
mimi3	10:b48d3ace55db	2182	return 3;
mimi3	10:b48d3ace55db	2183
mimi3	10:b48d3ace55db	2184	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check boot record signature (always placed at offset 510 even if the sector size is >512) */
mimi3	10:b48d3ace55db	2185	return 2;
mimi3	10:b48d3ace55db	2186
mimi3	10:b48d3ace55db	2187	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mimi3	10:b48d3ace55db	2188	return 0;
mimi3	10:b48d3ace55db	2189	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */
mimi3	10:b48d3ace55db	2190	return 0;
mimi3	10:b48d3ace55db	2191
mimi3	10:b48d3ace55db	2192	return 1;
mimi3	10:b48d3ace55db	2193	}
mimi3	10:b48d3ace55db	2194
mimi3	10:b48d3ace55db	2195
mimi3	10:b48d3ace55db	2196
mimi3	10:b48d3ace55db	2197
mimi3	10:b48d3ace55db	2198	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2199	/* Find logical drive and check if the volume is mounted */
mimi3	10:b48d3ace55db	2200	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2201
mimi3	10:b48d3ace55db	2202	static
mimi3	10:b48d3ace55db	2203	FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
mimi3	10:b48d3ace55db	2204	FATFS** rfs, /* Pointer to pointer to the found file system object */
mimi3	10:b48d3ace55db	2205	const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
mimi3	10:b48d3ace55db	2206	BYTE wmode /* !=0: Check write protection for write access */
mimi3	10:b48d3ace55db	2207	)
mimi3	10:b48d3ace55db	2208	{
mimi3	10:b48d3ace55db	2209	BYTE fmt, *pt;
mimi3	10:b48d3ace55db	2210	int vol;
mimi3	10:b48d3ace55db	2211	DSTATUS stat;
mimi3	10:b48d3ace55db	2212	DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
mimi3	10:b48d3ace55db	2213	WORD nrsv;
mimi3	10:b48d3ace55db	2214	FATFS *fs;
mimi3	10:b48d3ace55db	2215	UINT i;
mimi3	10:b48d3ace55db	2216
mimi3	10:b48d3ace55db	2217
mimi3	10:b48d3ace55db	2218	/* Get logical drive number from the path name */
mimi3	10:b48d3ace55db	2219	*rfs = 0;
mimi3	10:b48d3ace55db	2220	vol = get_ldnumber(path);
mimi3	10:b48d3ace55db	2221	if (vol < 0) return FR_INVALID_DRIVE;
mimi3	10:b48d3ace55db	2222
mimi3	10:b48d3ace55db	2223	/* Check if the file system object is valid or not */
mimi3	10:b48d3ace55db	2224	fs = FatFs[vol]; /* Get pointer to the file system object */
mimi3	10:b48d3ace55db	2225	if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
mimi3	10:b48d3ace55db	2226
mimi3	10:b48d3ace55db	2227	ENTER_FF(fs); /* Lock the volume */
mimi3	10:b48d3ace55db	2228	rfs = fs; / Return pointer to the file system object */
mimi3	10:b48d3ace55db	2229
mimi3	10:b48d3ace55db	2230	if (fs->fs_type) { /* If the volume has been mounted */
mimi3	10:b48d3ace55db	2231	stat = disk_status(fs->drv);
mimi3	10:b48d3ace55db	2232	if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
mimi3	10:b48d3ace55db	2233	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check write protection if needed */
mimi3	10:b48d3ace55db	2234	return FR_WRITE_PROTECTED;
mimi3	10:b48d3ace55db	2235	return FR_OK; /* The file system object is valid */
mimi3	10:b48d3ace55db	2236	}
mimi3	10:b48d3ace55db	2237	}
mimi3	10:b48d3ace55db	2238
mimi3	10:b48d3ace55db	2239	/* The file system object is not valid. */
mimi3	10:b48d3ace55db	2240	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
mimi3	10:b48d3ace55db	2241
mimi3	10:b48d3ace55db	2242	fs->fs_type = 0; /* Clear the file system object */
mimi3	10:b48d3ace55db	2243	fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
mimi3	10:b48d3ace55db	2244	stat = disk_initialize(fs->drv); /* Initialize the physical drive */
mimi3	10:b48d3ace55db	2245	if (stat & STA_NOINIT) /* Check if the initialization succeeded */
mimi3	10:b48d3ace55db	2246	return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
mimi3	10:b48d3ace55db	2247	if (!_FS_READONLY && wmode && (stat & STA_PROTECT)) /* Check disk write protection if needed */
mimi3	10:b48d3ace55db	2248	return FR_WRITE_PROTECTED;
mimi3	10:b48d3ace55db	2249	#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
mimi3	10:b48d3ace55db	2250	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
mimi3	10:b48d3ace55db	2251	\|\| SS(fs) < _MIN_SS \|\| SS(fs) > _MAX_SS) return FR_DISK_ERR;
mimi3	10:b48d3ace55db	2252	#endif
mimi3	10:b48d3ace55db	2253	/* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
mimi3	10:b48d3ace55db	2254	bsect = 0;
mimi3	10:b48d3ace55db	2255	fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
mimi3	10:b48d3ace55db	2256	if (fmt == 1 \|\| (!fmt && (LD2PT(vol)))) { /* Not an FAT boot sector or forced partition number */
mimi3	10:b48d3ace55db	2257	for (i = 0; i < 4; i++) { /* Get partition offset */
mimi3	10:b48d3ace55db	2258	pt = fs->win + MBR_Table + i * SZ_PTE;
mimi3	10:b48d3ace55db	2259	br[i] = pt[4] ? LD_DWORD(&pt[8]) : 0;
mimi3	10:b48d3ace55db	2260	}
mimi3	10:b48d3ace55db	2261	i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
mimi3	10:b48d3ace55db	2262	if (i) i--;
mimi3	10:b48d3ace55db	2263	do { /* Find an FAT volume */
mimi3	10:b48d3ace55db	2264	bsect = br[i];
mimi3	10:b48d3ace55db	2265	fmt = bsect ? check_fs(fs, bsect) : 2; /* Check the partition */
mimi3	10:b48d3ace55db	2266	} while (!LD2PT(vol) && fmt && ++i < 4);
mimi3	10:b48d3ace55db	2267	}
mimi3	10:b48d3ace55db	2268	if (fmt == 3) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
mimi3	10:b48d3ace55db	2269	if (fmt) return FR_NO_FILESYSTEM; /* No FAT volume is found */
mimi3	10:b48d3ace55db	2270
mimi3	10:b48d3ace55db	2271	/* An FAT volume is found. Following code initializes the file system object */
mimi3	10:b48d3ace55db	2272
mimi3	10:b48d3ace55db	2273	if (LD_WORD(fs->win + BPB_BytsPerSec) != SS(fs)) /* (BPB_BytsPerSec must be equal to the physical sector size) */
mimi3	10:b48d3ace55db	2274	return FR_NO_FILESYSTEM;
mimi3	10:b48d3ace55db	2275
mimi3	10:b48d3ace55db	2276	fasize = LD_WORD(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
mimi3	10:b48d3ace55db	2277	if (!fasize) fasize = LD_DWORD(fs->win + BPB_FATSz32);
mimi3	10:b48d3ace55db	2278	fs->fsize = fasize;
mimi3	10:b48d3ace55db	2279
mimi3	10:b48d3ace55db	2280	fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
mimi3	10:b48d3ace55db	2281	if (fs->n_fats != 1 && fs->n_fats != 2) /* (Must be 1 or 2) */
mimi3	10:b48d3ace55db	2282	return FR_NO_FILESYSTEM;
mimi3	10:b48d3ace55db	2283	fasize = fs->n_fats; / Number of sectors for FAT area */
mimi3	10:b48d3ace55db	2284
mimi3	10:b48d3ace55db	2285	fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
mimi3	10:b48d3ace55db	2286	if (!fs->csize \|\| (fs->csize & (fs->csize - 1))) /* (Must be power of 2) */
mimi3	10:b48d3ace55db	2287	return FR_NO_FILESYSTEM;
mimi3	10:b48d3ace55db	2288
mimi3	10:b48d3ace55db	2289	fs->n_rootdir = LD_WORD(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
mimi3	10:b48d3ace55db	2290	if (fs->n_rootdir % (SS(fs) / SZ_DIRE)) /* (Must be sector aligned) */
mimi3	10:b48d3ace55db	2291	return FR_NO_FILESYSTEM;
mimi3	10:b48d3ace55db	2292
mimi3	10:b48d3ace55db	2293	tsect = LD_WORD(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
mimi3	10:b48d3ace55db	2294	if (!tsect) tsect = LD_DWORD(fs->win + BPB_TotSec32);
mimi3	10:b48d3ace55db	2295
mimi3	10:b48d3ace55db	2296	nrsv = LD_WORD(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
mimi3	10:b48d3ace55db	2297	if (!nrsv) return FR_NO_FILESYSTEM; /* (Must not be 0) */
mimi3	10:b48d3ace55db	2298
mimi3	10:b48d3ace55db	2299	/* Determine the FAT sub type */
mimi3	10:b48d3ace55db	2300	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIRE); /* RSV + FAT + FATFS_DIR */
mimi3	10:b48d3ace55db	2301	if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mimi3	10:b48d3ace55db	2302	nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
mimi3	10:b48d3ace55db	2303	if (!nclst) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
mimi3	10:b48d3ace55db	2304	fmt = FS_FAT12;
mimi3	10:b48d3ace55db	2305	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
mimi3	10:b48d3ace55db	2306	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
mimi3	10:b48d3ace55db	2307
mimi3	10:b48d3ace55db	2308	/* Boundaries and Limits */
mimi3	10:b48d3ace55db	2309	fs->n_fatent = nclst + 2; /* Number of FAT entries */
mimi3	10:b48d3ace55db	2310	fs->volbase = bsect; /* Volume start sector */
mimi3	10:b48d3ace55db	2311	fs->fatbase = bsect + nrsv; /* FAT start sector */
mimi3	10:b48d3ace55db	2312	fs->database = bsect + sysect; /* Data start sector */
mimi3	10:b48d3ace55db	2313	if (fmt == FS_FAT32) {
mimi3	10:b48d3ace55db	2314	if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
mimi3	10:b48d3ace55db	2315	fs->dirbase = LD_DWORD(fs->win + BPB_RootClus); /* Root directory start cluster */
mimi3	10:b48d3ace55db	2316	szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
mimi3	10:b48d3ace55db	2317	} else {
mimi3	10:b48d3ace55db	2318	if (!fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
mimi3	10:b48d3ace55db	2319	fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
mimi3	10:b48d3ace55db	2320	szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
mimi3	10:b48d3ace55db	2321	fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
mimi3	10:b48d3ace55db	2322	}
mimi3	10:b48d3ace55db	2323	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) /* (BPB_FATSz must not be less than the size needed) */
mimi3	10:b48d3ace55db	2324	return FR_NO_FILESYSTEM;
mimi3	10:b48d3ace55db	2325
mimi3	10:b48d3ace55db	2326	#if !_FS_READONLY
mimi3	10:b48d3ace55db	2327	/* Initialize cluster allocation information */
mimi3	10:b48d3ace55db	2328	fs->last_clust = fs->free_clust = 0xFFFFFFFF;
mimi3	10:b48d3ace55db	2329
mimi3	10:b48d3ace55db	2330	/* Get fsinfo if available */
mimi3	10:b48d3ace55db	2331	fs->fsi_flag = 0x80;
mimi3	10:b48d3ace55db	2332	#if (_FS_NOFSINFO & 3) != 3
mimi3	10:b48d3ace55db	2333	if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo == 1 */
mimi3	10:b48d3ace55db	2334	&& LD_WORD(fs->win + BPB_FSInfo) == 1
mimi3	10:b48d3ace55db	2335	&& move_window(fs, bsect + 1) == FR_OK)
mimi3	10:b48d3ace55db	2336	{
mimi3	10:b48d3ace55db	2337	fs->fsi_flag = 0;
mimi3	10:b48d3ace55db	2338	if (LD_WORD(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
mimi3	10:b48d3ace55db	2339	&& LD_DWORD(fs->win + FSI_LeadSig) == 0x41615252
mimi3	10:b48d3ace55db	2340	&& LD_DWORD(fs->win + FSI_StrucSig) == 0x61417272)
mimi3	10:b48d3ace55db	2341	{
mimi3	10:b48d3ace55db	2342	#if (_FS_NOFSINFO & 1) == 0
mimi3	10:b48d3ace55db	2343	fs->free_clust = LD_DWORD(fs->win + FSI_Free_Count);
mimi3	10:b48d3ace55db	2344	#endif
mimi3	10:b48d3ace55db	2345	#if (_FS_NOFSINFO & 2) == 0
mimi3	10:b48d3ace55db	2346	fs->last_clust = LD_DWORD(fs->win + FSI_Nxt_Free);
mimi3	10:b48d3ace55db	2347	#endif
mimi3	10:b48d3ace55db	2348	}
mimi3	10:b48d3ace55db	2349	}
mimi3	10:b48d3ace55db	2350	#endif
mimi3	10:b48d3ace55db	2351	#endif
mimi3	10:b48d3ace55db	2352	fs->fs_type = fmt; /* FAT sub-type */
mimi3	10:b48d3ace55db	2353	fs->id = ++Fsid; /* File system mount ID */
mimi3	10:b48d3ace55db	2354	#if _FS_RPATH
mimi3	10:b48d3ace55db	2355	fs->cdir = 0; /* Set current directory to root */
mimi3	10:b48d3ace55db	2356	#endif
mimi3	10:b48d3ace55db	2357	#if _FS_LOCK /* Clear file lock semaphores */
mimi3	10:b48d3ace55db	2358	clear_lock(fs);
mimi3	10:b48d3ace55db	2359	#endif
mimi3	10:b48d3ace55db	2360
mimi3	10:b48d3ace55db	2361	return FR_OK;
mimi3	10:b48d3ace55db	2362	}
mimi3	10:b48d3ace55db	2363
mimi3	10:b48d3ace55db	2364
mimi3	10:b48d3ace55db	2365
mimi3	10:b48d3ace55db	2366
mimi3	10:b48d3ace55db	2367	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2368	/* Check if the file/directory object is valid or not */
mimi3	10:b48d3ace55db	2369	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2370
mimi3	10:b48d3ace55db	2371	static
mimi3	10:b48d3ace55db	2372	FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
mimi3	10:b48d3ace55db	2373	void* obj /* Pointer to the object FIL/FATFS_DIR to check validity */
mimi3	10:b48d3ace55db	2374	)
mimi3	10:b48d3ace55db	2375	{
mimi3	10:b48d3ace55db	2376	FIL fil = (FIL)obj; /* Assuming offset of .fs and .id in the FIL/FATFS_DIR structure is identical */
mimi3	10:b48d3ace55db	2377
mimi3	10:b48d3ace55db	2378
mimi3	10:b48d3ace55db	2379	if (!fil \|\| !fil->fs \|\| !fil->fs->fs_type \|\| fil->fs->id != fil->id \|\| (disk_status(fil->fs->drv) & STA_NOINIT))
mimi3	10:b48d3ace55db	2380	return FR_INVALID_OBJECT;
mimi3	10:b48d3ace55db	2381
mimi3	10:b48d3ace55db	2382	ENTER_FF(fil->fs); /* Lock file system */
mimi3	10:b48d3ace55db	2383
mimi3	10:b48d3ace55db	2384	return FR_OK;
mimi3	10:b48d3ace55db	2385	}
mimi3	10:b48d3ace55db	2386
mimi3	10:b48d3ace55db	2387
mimi3	10:b48d3ace55db	2388
mimi3	10:b48d3ace55db	2389
mimi3	10:b48d3ace55db	2390	/*--------------------------------------------------------------------------
mimi3	10:b48d3ace55db	2391
mimi3	10:b48d3ace55db	2392	Public Functions
mimi3	10:b48d3ace55db	2393
mimi3	10:b48d3ace55db	2394	---------------------------------------------------------------------------*/
mimi3	10:b48d3ace55db	2395
mimi3	10:b48d3ace55db	2396
mimi3	10:b48d3ace55db	2397
mimi3	10:b48d3ace55db	2398	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2399	/* Mount/Unmount a Logical Drive */
mimi3	10:b48d3ace55db	2400	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2401
mimi3	10:b48d3ace55db	2402	FRESULT f_mount (
mimi3	10:b48d3ace55db	2403	FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
mimi3	10:b48d3ace55db	2404	const TCHAR* path, /* Logical drive number to be mounted/unmounted */
mimi3	10:b48d3ace55db	2405	BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
mimi3	10:b48d3ace55db	2406	)
mimi3	10:b48d3ace55db	2407	{
mimi3	10:b48d3ace55db	2408	FATFS *cfs;
mimi3	10:b48d3ace55db	2409	int vol;
mimi3	10:b48d3ace55db	2410	FRESULT res;
mimi3	10:b48d3ace55db	2411	const TCHAR *rp = path;
mimi3	10:b48d3ace55db	2412
mimi3	10:b48d3ace55db	2413
mimi3	10:b48d3ace55db	2414	vol = get_ldnumber(&rp);
mimi3	10:b48d3ace55db	2415	if (vol < 0) return FR_INVALID_DRIVE;
mimi3	10:b48d3ace55db	2416	cfs = FatFs[vol]; /* Pointer to fs object */
mimi3	10:b48d3ace55db	2417
mimi3	10:b48d3ace55db	2418	if (cfs) {
mimi3	10:b48d3ace55db	2419	#if _FS_LOCK
mimi3	10:b48d3ace55db	2420	clear_lock(cfs);
mimi3	10:b48d3ace55db	2421	#endif
mimi3	10:b48d3ace55db	2422	#if _FS_REENTRANT /* Discard sync object of the current volume */
mimi3	10:b48d3ace55db	2423	if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
mimi3	10:b48d3ace55db	2424	#endif
mimi3	10:b48d3ace55db	2425	cfs->fs_type = 0; /* Clear old fs object */
mimi3	10:b48d3ace55db	2426	}
mimi3	10:b48d3ace55db	2427
mimi3	10:b48d3ace55db	2428	if (fs) {
mimi3	10:b48d3ace55db	2429	fs->fs_type = 0; /* Clear new fs object */
mimi3	10:b48d3ace55db	2430	#if _FS_REENTRANT /* Create sync object for the new volume */
mimi3	10:b48d3ace55db	2431	if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
mimi3	10:b48d3ace55db	2432	#endif
mimi3	10:b48d3ace55db	2433	}
mimi3	10:b48d3ace55db	2434	FatFs[vol] = fs; /* Register new fs object */
mimi3	10:b48d3ace55db	2435
mimi3	10:b48d3ace55db	2436	if (!fs \|\| opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
mimi3	10:b48d3ace55db	2437
mimi3	10:b48d3ace55db	2438	res = find_volume(&fs, &path, 0); /* Force mounted the volume */
mimi3	10:b48d3ace55db	2439	LEAVE_FF(fs, res);
mimi3	10:b48d3ace55db	2440	}
mimi3	10:b48d3ace55db	2441
mimi3	10:b48d3ace55db	2442
mimi3	10:b48d3ace55db	2443
mimi3	10:b48d3ace55db	2444
mimi3	10:b48d3ace55db	2445	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2446	/* Open or Create a File */
mimi3	10:b48d3ace55db	2447	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2448
mimi3	10:b48d3ace55db	2449	FRESULT f_open (
mimi3	10:b48d3ace55db	2450	FIL* fp, /* Pointer to the blank file object */
mimi3	10:b48d3ace55db	2451	const TCHAR* path, /* Pointer to the file name */
mimi3	10:b48d3ace55db	2452	BYTE mode /* Access mode and file open mode flags */
mimi3	10:b48d3ace55db	2453	)
mimi3	10:b48d3ace55db	2454	{
mimi3	10:b48d3ace55db	2455	FRESULT res;
mimi3	10:b48d3ace55db	2456	FATFS_DIR dj;
mimi3	10:b48d3ace55db	2457	BYTE *dir;
mimi3	10:b48d3ace55db	2458	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	2459	#if !_FS_READONLY
mimi3	10:b48d3ace55db	2460	DWORD dw, cl;
mimi3	10:b48d3ace55db	2461	#endif
mimi3	10:b48d3ace55db	2462
mimi3	10:b48d3ace55db	2463
mimi3	10:b48d3ace55db	2464	if (!fp) return FR_INVALID_OBJECT;
mimi3	10:b48d3ace55db	2465	fp->fs = 0; /* Clear file object */
mimi3	10:b48d3ace55db	2466
mimi3	10:b48d3ace55db	2467	/* Get logical drive number */
mimi3	10:b48d3ace55db	2468	#if !_FS_READONLY
mimi3	10:b48d3ace55db	2469	mode &= FA_READ \| FA_WRITE \| FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW;
mimi3	10:b48d3ace55db	2470	res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
mimi3	10:b48d3ace55db	2471	#else
mimi3	10:b48d3ace55db	2472	mode &= FA_READ;
mimi3	10:b48d3ace55db	2473	res = find_volume(&dj.fs, &path, 0);
mimi3	10:b48d3ace55db	2474	#endif
mimi3	10:b48d3ace55db	2475	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2476	INIT_BUF(dj);
mimi3	10:b48d3ace55db	2477	res = follow_path(&dj, path); /* Follow the file path */
mimi3	10:b48d3ace55db	2478	dir = dj.dir;
mimi3	10:b48d3ace55db	2479	#if !_FS_READONLY /* R/W configuration */
mimi3	10:b48d3ace55db	2480	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2481	if (!dir) /* Default directory itself */
mimi3	10:b48d3ace55db	2482	res = FR_INVALID_NAME;
mimi3	10:b48d3ace55db	2483	#if _FS_LOCK
mimi3	10:b48d3ace55db	2484	else
mimi3	10:b48d3ace55db	2485	res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mimi3	10:b48d3ace55db	2486	#endif
mimi3	10:b48d3ace55db	2487	}
mimi3	10:b48d3ace55db	2488	/* Create or Open a file */
mimi3	10:b48d3ace55db	2489	if (mode & (FA_CREATE_ALWAYS \| FA_OPEN_ALWAYS \| FA_CREATE_NEW)) {
mimi3	10:b48d3ace55db	2490	if (res != FR_OK) { /* No file, create new */
mimi3	10:b48d3ace55db	2491	if (res == FR_NO_FILE) /* There is no file to open, create a new entry */
mimi3	10:b48d3ace55db	2492	#if _FS_LOCK
mimi3	10:b48d3ace55db	2493	res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
mimi3	10:b48d3ace55db	2494	#else
mimi3	10:b48d3ace55db	2495	res = dir_register(&dj);
mimi3	10:b48d3ace55db	2496	#endif
mimi3	10:b48d3ace55db	2497	mode \|= FA_CREATE_ALWAYS; /* File is created */
mimi3	10:b48d3ace55db	2498	dir = dj.dir; /* New entry */
mimi3	10:b48d3ace55db	2499	}
mimi3	10:b48d3ace55db	2500	else { /* Any object is already existing */
mimi3	10:b48d3ace55db	2501	if (dir[DIR_Attr] & (AM_RDO \| AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
mimi3	10:b48d3ace55db	2502	res = FR_DENIED;
mimi3	10:b48d3ace55db	2503	} else {
mimi3	10:b48d3ace55db	2504	if (mode & FA_CREATE_NEW) /* Cannot create as new file */
mimi3	10:b48d3ace55db	2505	res = FR_EXIST;
mimi3	10:b48d3ace55db	2506	}
mimi3	10:b48d3ace55db	2507	}
mimi3	10:b48d3ace55db	2508	if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
mimi3	10:b48d3ace55db	2509	dw = GET_FATTIME();
mimi3	10:b48d3ace55db	2510	ST_DWORD(dir + DIR_CrtTime, dw);/* Set created time */
mimi3	10:b48d3ace55db	2511	ST_DWORD(dir + DIR_WrtTime, dw);/* Set modified time */
mimi3	10:b48d3ace55db	2512	dir[DIR_Attr] = 0; /* Reset attribute */
mimi3	10:b48d3ace55db	2513	ST_DWORD(dir + DIR_FileSize, 0);/* Reset file size */
mimi3	10:b48d3ace55db	2514	cl = ld_clust(dj.fs, dir); /* Get cluster chain */
mimi3	10:b48d3ace55db	2515	st_clust(dir, 0); /* Reset cluster */
mimi3	10:b48d3ace55db	2516	dj.fs->wflag = 1;
mimi3	10:b48d3ace55db	2517	if (cl) { /* Remove the cluster chain if exist */
mimi3	10:b48d3ace55db	2518	dw = dj.fs->winsect;
mimi3	10:b48d3ace55db	2519	res = remove_chain(dj.fs, cl);
mimi3	10:b48d3ace55db	2520	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2521	dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
mimi3	10:b48d3ace55db	2522	res = move_window(dj.fs, dw);
mimi3	10:b48d3ace55db	2523	}
mimi3	10:b48d3ace55db	2524	}
mimi3	10:b48d3ace55db	2525	}
mimi3	10:b48d3ace55db	2526	}
mimi3	10:b48d3ace55db	2527	else { /* Open an existing file */
mimi3	10:b48d3ace55db	2528	if (res == FR_OK) { /* Following succeeded */
mimi3	10:b48d3ace55db	2529	if (dir[DIR_Attr] & AM_DIR) { /* It is a directory */
mimi3	10:b48d3ace55db	2530	res = FR_NO_FILE;
mimi3	10:b48d3ace55db	2531	} else {
mimi3	10:b48d3ace55db	2532	if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
mimi3	10:b48d3ace55db	2533	res = FR_DENIED;
mimi3	10:b48d3ace55db	2534	}
mimi3	10:b48d3ace55db	2535	}
mimi3	10:b48d3ace55db	2536	}
mimi3	10:b48d3ace55db	2537	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2538	if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
mimi3	10:b48d3ace55db	2539	mode \|= FA__WRITTEN;
mimi3	10:b48d3ace55db	2540	fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
mimi3	10:b48d3ace55db	2541	fp->dir_ptr = dir;
mimi3	10:b48d3ace55db	2542	#if _FS_LOCK
mimi3	10:b48d3ace55db	2543	fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
mimi3	10:b48d3ace55db	2544	if (!fp->lockid) res = FR_INT_ERR;
mimi3	10:b48d3ace55db	2545	#endif
mimi3	10:b48d3ace55db	2546	}
mimi3	10:b48d3ace55db	2547
mimi3	10:b48d3ace55db	2548	#else /* R/O configuration */
mimi3	10:b48d3ace55db	2549	if (res == FR_OK) { /* Follow succeeded */
mimi3	10:b48d3ace55db	2550	dir = dj.dir;
mimi3	10:b48d3ace55db	2551	if (!dir) { /* Current directory itself */
mimi3	10:b48d3ace55db	2552	res = FR_INVALID_NAME;
mimi3	10:b48d3ace55db	2553	} else {
mimi3	10:b48d3ace55db	2554	if (dir[DIR_Attr] & AM_DIR) /* It is a directory */
mimi3	10:b48d3ace55db	2555	res = FR_NO_FILE;
mimi3	10:b48d3ace55db	2556	}
mimi3	10:b48d3ace55db	2557	}
mimi3	10:b48d3ace55db	2558	#endif
mimi3	10:b48d3ace55db	2559	FREE_BUF();
mimi3	10:b48d3ace55db	2560
mimi3	10:b48d3ace55db	2561	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2562	fp->flag = mode; /* File access mode */
mimi3	10:b48d3ace55db	2563	fp->err = 0; /* Clear error flag */
mimi3	10:b48d3ace55db	2564	fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
mimi3	10:b48d3ace55db	2565	fp->fsize = LD_DWORD(dir + DIR_FileSize); /* File size */
mimi3	10:b48d3ace55db	2566	fp->fptr = 0; /* File pointer */
mimi3	10:b48d3ace55db	2567	fp->dsect = 0;
mimi3	10:b48d3ace55db	2568	#if _USE_FASTSEEK
mimi3	10:b48d3ace55db	2569	fp->cltbl = 0; /* Normal seek mode */
mimi3	10:b48d3ace55db	2570	#endif
mimi3	10:b48d3ace55db	2571	fp->fs = dj.fs; /* Validate file object */
mimi3	10:b48d3ace55db	2572	fp->id = fp->fs->id;
mimi3	10:b48d3ace55db	2573	}
mimi3	10:b48d3ace55db	2574	}
mimi3	10:b48d3ace55db	2575
mimi3	10:b48d3ace55db	2576	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	2577	}
mimi3	10:b48d3ace55db	2578
mimi3	10:b48d3ace55db	2579
mimi3	10:b48d3ace55db	2580
mimi3	10:b48d3ace55db	2581
mimi3	10:b48d3ace55db	2582	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2583	/* Read File */
mimi3	10:b48d3ace55db	2584	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2585
mimi3	10:b48d3ace55db	2586	FRESULT f_read (
mimi3	10:b48d3ace55db	2587	FIL* fp, /* Pointer to the file object */
mimi3	10:b48d3ace55db	2588	void* buff, /* Pointer to data buffer */
mimi3	10:b48d3ace55db	2589	UINT btr, /* Number of bytes to read */
mimi3	10:b48d3ace55db	2590	UINT* br /* Pointer to number of bytes read */
mimi3	10:b48d3ace55db	2591	)
mimi3	10:b48d3ace55db	2592	{
mimi3	10:b48d3ace55db	2593	FRESULT res;
mimi3	10:b48d3ace55db	2594	DWORD clst, sect, remain;
mimi3	10:b48d3ace55db	2595	UINT rcnt, cc;
mimi3	10:b48d3ace55db	2596	BYTE csect, rbuff = (BYTE)buff;
mimi3	10:b48d3ace55db	2597
mimi3	10:b48d3ace55db	2598
mimi3	10:b48d3ace55db	2599	br = 0; / Clear read byte counter */
mimi3	10:b48d3ace55db	2600
mimi3	10:b48d3ace55db	2601	res = validate(fp); /* Check validity */
mimi3	10:b48d3ace55db	2602	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mimi3	10:b48d3ace55db	2603	if (fp->err) /* Check error */
mimi3	10:b48d3ace55db	2604	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mimi3	10:b48d3ace55db	2605	if (!(fp->flag & FA_READ)) /* Check access mode */
mimi3	10:b48d3ace55db	2606	LEAVE_FF(fp->fs, FR_DENIED);
mimi3	10:b48d3ace55db	2607	remain = fp->fsize - fp->fptr;
mimi3	10:b48d3ace55db	2608	if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
mimi3	10:b48d3ace55db	2609
mimi3	10:b48d3ace55db	2610	for ( ; btr; /* Repeat until all data read */
mimi3	10:b48d3ace55db	2611	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
mimi3	10:b48d3ace55db	2612	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mimi3	10:b48d3ace55db	2613	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mimi3	10:b48d3ace55db	2614	if (!csect) { /* On the cluster boundary? */
mimi3	10:b48d3ace55db	2615	if (fp->fptr == 0) { /* On the top of the file? */
mimi3	10:b48d3ace55db	2616	clst = fp->sclust; /* Follow from the origin */
mimi3	10:b48d3ace55db	2617	} else { /* Middle or end of the file */
mimi3	10:b48d3ace55db	2618	#if _USE_FASTSEEK
mimi3	10:b48d3ace55db	2619	if (fp->cltbl)
mimi3	10:b48d3ace55db	2620	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mimi3	10:b48d3ace55db	2621	else
mimi3	10:b48d3ace55db	2622	#endif
mimi3	10:b48d3ace55db	2623	clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
mimi3	10:b48d3ace55db	2624	}
mimi3	10:b48d3ace55db	2625	if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	2626	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2627	fp->clust = clst; /* Update current cluster */
mimi3	10:b48d3ace55db	2628	}
mimi3	10:b48d3ace55db	2629	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mimi3	10:b48d3ace55db	2630	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	2631	sect += csect;
mimi3	10:b48d3ace55db	2632	cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
mimi3	10:b48d3ace55db	2633	if (cc) { /* Read maximum contiguous sectors directly */
mimi3	10:b48d3ace55db	2634	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mimi3	10:b48d3ace55db	2635	cc = fp->fs->csize - csect;
mimi3	10:b48d3ace55db	2636	if (disk_read(fp->fs->drv, rbuff, sect, cc) != RES_OK)
mimi3	10:b48d3ace55db	2637	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2638	#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
mimi3	10:b48d3ace55db	2639	#if _FS_TINY
mimi3	10:b48d3ace55db	2640	if (fp->fs->wflag && fp->fs->winsect - sect < cc)
mimi3	10:b48d3ace55db	2641	mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
mimi3	10:b48d3ace55db	2642	#else
mimi3	10:b48d3ace55db	2643	if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
mimi3	10:b48d3ace55db	2644	mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
mimi3	10:b48d3ace55db	2645	#endif
mimi3	10:b48d3ace55db	2646	#endif
mimi3	10:b48d3ace55db	2647	rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mimi3	10:b48d3ace55db	2648	continue;
mimi3	10:b48d3ace55db	2649	}
mimi3	10:b48d3ace55db	2650	#if !_FS_TINY
mimi3	10:b48d3ace55db	2651	if (fp->dsect != sect) { /* Load data sector if not in cache */
mimi3	10:b48d3ace55db	2652	#if !_FS_READONLY
mimi3	10:b48d3ace55db	2653	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mimi3	10:b48d3ace55db	2654	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mimi3	10:b48d3ace55db	2655	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2656	fp->flag &= ~FA__DIRTY;
mimi3	10:b48d3ace55db	2657	}
mimi3	10:b48d3ace55db	2658	#endif
mimi3	10:b48d3ace55db	2659	if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK) /* Fill sector cache */
mimi3	10:b48d3ace55db	2660	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2661	}
mimi3	10:b48d3ace55db	2662	#endif
mimi3	10:b48d3ace55db	2663	fp->dsect = sect;
mimi3	10:b48d3ace55db	2664	}
mimi3	10:b48d3ace55db	2665	rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
mimi3	10:b48d3ace55db	2666	if (rcnt > btr) rcnt = btr;
mimi3	10:b48d3ace55db	2667	#if _FS_TINY
mimi3	10:b48d3ace55db	2668	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mimi3	10:b48d3ace55db	2669	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2670	mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
mimi3	10:b48d3ace55db	2671	#else
mimi3	10:b48d3ace55db	2672	mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
mimi3	10:b48d3ace55db	2673	#endif
mimi3	10:b48d3ace55db	2674	}
mimi3	10:b48d3ace55db	2675
mimi3	10:b48d3ace55db	2676	LEAVE_FF(fp->fs, FR_OK);
mimi3	10:b48d3ace55db	2677	}
mimi3	10:b48d3ace55db	2678
mimi3	10:b48d3ace55db	2679
mimi3	10:b48d3ace55db	2680
mimi3	10:b48d3ace55db	2681
mimi3	10:b48d3ace55db	2682	#if !_FS_READONLY
mimi3	10:b48d3ace55db	2683	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2684	/* Write File */
mimi3	10:b48d3ace55db	2685	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2686
mimi3	10:b48d3ace55db	2687	FRESULT f_write (
mimi3	10:b48d3ace55db	2688	FIL* fp, /* Pointer to the file object */
mimi3	10:b48d3ace55db	2689	const void buff, / Pointer to the data to be written */
mimi3	10:b48d3ace55db	2690	UINT btw, /* Number of bytes to write */
mimi3	10:b48d3ace55db	2691	UINT* bw /* Pointer to number of bytes written */
mimi3	10:b48d3ace55db	2692	)
mimi3	10:b48d3ace55db	2693	{
mimi3	10:b48d3ace55db	2694	FRESULT res;
mimi3	10:b48d3ace55db	2695	DWORD clst, sect;
mimi3	10:b48d3ace55db	2696	UINT wcnt, cc;
mimi3	10:b48d3ace55db	2697	const BYTE wbuff = (const BYTE)buff;
mimi3	10:b48d3ace55db	2698	BYTE csect;
mimi3	10:b48d3ace55db	2699	bool need_sync = false;
mimi3	10:b48d3ace55db	2700
mimi3	10:b48d3ace55db	2701	bw = 0; / Clear write byte counter */
mimi3	10:b48d3ace55db	2702
mimi3	10:b48d3ace55db	2703	res = validate(fp); /* Check validity */
mimi3	10:b48d3ace55db	2704	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mimi3	10:b48d3ace55db	2705	if (fp->err) /* Check error */
mimi3	10:b48d3ace55db	2706	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mimi3	10:b48d3ace55db	2707	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mimi3	10:b48d3ace55db	2708	LEAVE_FF(fp->fs, FR_DENIED);
mimi3	10:b48d3ace55db	2709	if (fp->fptr + btw < fp->fptr) btw = 0; /* File size cannot reach 4GB */
mimi3	10:b48d3ace55db	2710
mimi3	10:b48d3ace55db	2711	for ( ; btw; /* Repeat until all data written */
mimi3	10:b48d3ace55db	2712	wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
mimi3	10:b48d3ace55db	2713	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mimi3	10:b48d3ace55db	2714	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mimi3	10:b48d3ace55db	2715	if (!csect) { /* On the cluster boundary? */
mimi3	10:b48d3ace55db	2716	if (fp->fptr == 0) { /* On the top of the file? */
mimi3	10:b48d3ace55db	2717	clst = fp->sclust; /* Follow from the origin */
mimi3	10:b48d3ace55db	2718	if (clst == 0) /* When no cluster is allocated, */
mimi3	10:b48d3ace55db	2719	clst = create_chain(fp->fs, 0); /* Create a new cluster chain */
mimi3	10:b48d3ace55db	2720	} else { /* Middle or end of the file */
mimi3	10:b48d3ace55db	2721	#if _USE_FASTSEEK
mimi3	10:b48d3ace55db	2722	if (fp->cltbl)
mimi3	10:b48d3ace55db	2723	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
mimi3	10:b48d3ace55db	2724	else
mimi3	10:b48d3ace55db	2725	#endif
mimi3	10:b48d3ace55db	2726	clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
mimi3	10:b48d3ace55db	2727	}
mimi3	10:b48d3ace55db	2728	if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
mimi3	10:b48d3ace55db	2729	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	2730	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2731	fp->clust = clst; /* Update current cluster */
mimi3	10:b48d3ace55db	2732	if (fp->sclust == 0) fp->sclust = clst; /* Set start cluster if the first write */
mimi3	10:b48d3ace55db	2733
mimi3	10:b48d3ace55db	2734	#if FLUSH_ON_NEW_CLUSTER
mimi3	10:b48d3ace55db	2735	// We do not need to flush for the first cluster
mimi3	10:b48d3ace55db	2736	if (fp->fptr != 0) {
mimi3	10:b48d3ace55db	2737	need_sync = true;
mimi3	10:b48d3ace55db	2738	}
mimi3	10:b48d3ace55db	2739	#endif
mimi3	10:b48d3ace55db	2740	}
mimi3	10:b48d3ace55db	2741	#if _FS_TINY
mimi3	10:b48d3ace55db	2742	if (fp->fs->winsect == fp->dsect && sync_window(fp->fs)) /* Write-back sector cache */
mimi3	10:b48d3ace55db	2743	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2744	#else
mimi3	10:b48d3ace55db	2745	if (fp->flag & FA__DIRTY) { /* Write-back sector cache */
mimi3	10:b48d3ace55db	2746	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mimi3	10:b48d3ace55db	2747	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2748	fp->flag &= ~FA__DIRTY;
mimi3	10:b48d3ace55db	2749	}
mimi3	10:b48d3ace55db	2750	#endif
mimi3	10:b48d3ace55db	2751	sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
mimi3	10:b48d3ace55db	2752	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	2753	sect += csect;
mimi3	10:b48d3ace55db	2754	cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
mimi3	10:b48d3ace55db	2755	if (cc) { /* Write maximum contiguous sectors directly */
mimi3	10:b48d3ace55db	2756	if (csect + cc > fp->fs->csize) /* Clip at cluster boundary */
mimi3	10:b48d3ace55db	2757	cc = fp->fs->csize - csect;
mimi3	10:b48d3ace55db	2758	if (disk_write(fp->fs->drv, wbuff, sect, cc) != RES_OK)
mimi3	10:b48d3ace55db	2759	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2760	#if _FS_MINIMIZE <= 2
mimi3	10:b48d3ace55db	2761	#if _FS_TINY
mimi3	10:b48d3ace55db	2762	if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mimi3	10:b48d3ace55db	2763	mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
mimi3	10:b48d3ace55db	2764	fp->fs->wflag = 0;
mimi3	10:b48d3ace55db	2765	}
mimi3	10:b48d3ace55db	2766	#else
mimi3	10:b48d3ace55db	2767	if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mimi3	10:b48d3ace55db	2768	mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
mimi3	10:b48d3ace55db	2769	fp->flag &= ~FA__DIRTY;
mimi3	10:b48d3ace55db	2770	}
mimi3	10:b48d3ace55db	2771	#endif
mimi3	10:b48d3ace55db	2772	#endif
mimi3	10:b48d3ace55db	2773	wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
mimi3	10:b48d3ace55db	2774	#if FLUSH_ON_NEW_SECTOR
mimi3	10:b48d3ace55db	2775	need_sync = true;
mimi3	10:b48d3ace55db	2776	#endif
mimi3	10:b48d3ace55db	2777	continue;
mimi3	10:b48d3ace55db	2778	}
mimi3	10:b48d3ace55db	2779	#if _FS_TINY
mimi3	10:b48d3ace55db	2780	if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
mimi3	10:b48d3ace55db	2781	if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2782	fp->fs->winsect = sect;
mimi3	10:b48d3ace55db	2783	}
mimi3	10:b48d3ace55db	2784	#else
mimi3	10:b48d3ace55db	2785	if (fp->dsect != sect) { /* Fill sector cache with file data */
mimi3	10:b48d3ace55db	2786	if (fp->fptr < fp->fsize &&
mimi3	10:b48d3ace55db	2787	disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
mimi3	10:b48d3ace55db	2788	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2789	}
mimi3	10:b48d3ace55db	2790	#endif
mimi3	10:b48d3ace55db	2791	fp->dsect = sect;
mimi3	10:b48d3ace55db	2792	}
mimi3	10:b48d3ace55db	2793	wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
mimi3	10:b48d3ace55db	2794	if (wcnt > btw) wcnt = btw;
mimi3	10:b48d3ace55db	2795	#if _FS_TINY
mimi3	10:b48d3ace55db	2796	if (move_window(fp->fs, fp->dsect) != FR_OK) /* Move sector window */
mimi3	10:b48d3ace55db	2797	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2798	mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mimi3	10:b48d3ace55db	2799	fp->fs->wflag = 1;
mimi3	10:b48d3ace55db	2800	#else
mimi3	10:b48d3ace55db	2801	mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
mimi3	10:b48d3ace55db	2802	fp->flag \|= FA__DIRTY;
mimi3	10:b48d3ace55db	2803	#endif
mimi3	10:b48d3ace55db	2804	}
mimi3	10:b48d3ace55db	2805
mimi3	10:b48d3ace55db	2806	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
mimi3	10:b48d3ace55db	2807	fp->flag \|= FA__WRITTEN; /* Set file change flag */
mimi3	10:b48d3ace55db	2808
mimi3	10:b48d3ace55db	2809	if (need_sync) {
mimi3	10:b48d3ace55db	2810	f_sync (fp);
mimi3	10:b48d3ace55db	2811	}
mimi3	10:b48d3ace55db	2812
mimi3	10:b48d3ace55db	2813	LEAVE_FF(fp->fs, FR_OK);
mimi3	10:b48d3ace55db	2814	}
mimi3	10:b48d3ace55db	2815
mimi3	10:b48d3ace55db	2816
mimi3	10:b48d3ace55db	2817
mimi3	10:b48d3ace55db	2818
mimi3	10:b48d3ace55db	2819	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2820	/* Synchronize the File */
mimi3	10:b48d3ace55db	2821	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2822
mimi3	10:b48d3ace55db	2823	FRESULT f_sync (
mimi3	10:b48d3ace55db	2824	FIL* fp /* Pointer to the file object */
mimi3	10:b48d3ace55db	2825	)
mimi3	10:b48d3ace55db	2826	{
mimi3	10:b48d3ace55db	2827	FRESULT res;
mimi3	10:b48d3ace55db	2828	DWORD tm;
mimi3	10:b48d3ace55db	2829	BYTE *dir;
mimi3	10:b48d3ace55db	2830
mimi3	10:b48d3ace55db	2831
mimi3	10:b48d3ace55db	2832	res = validate(fp); /* Check validity of the object */
mimi3	10:b48d3ace55db	2833	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2834	if (fp->flag & FA__WRITTEN) { /* Is there any change to the file? */
mimi3	10:b48d3ace55db	2835	#if !_FS_TINY
mimi3	10:b48d3ace55db	2836	if (fp->flag & FA__DIRTY) { /* Write-back cached data if needed */
mimi3	10:b48d3ace55db	2837	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mimi3	10:b48d3ace55db	2838	LEAVE_FF(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	2839	fp->flag &= ~FA__DIRTY;
mimi3	10:b48d3ace55db	2840	}
mimi3	10:b48d3ace55db	2841	#endif
mimi3	10:b48d3ace55db	2842	/* Update the directory entry */
mimi3	10:b48d3ace55db	2843	res = move_window(fp->fs, fp->dir_sect);
mimi3	10:b48d3ace55db	2844	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2845	dir = fp->dir_ptr;
mimi3	10:b48d3ace55db	2846	dir[DIR_Attr] \|= AM_ARC; /* Set archive bit */
mimi3	10:b48d3ace55db	2847	ST_DWORD(dir + DIR_FileSize, fp->fsize); /* Update file size */
mimi3	10:b48d3ace55db	2848	st_clust(dir, fp->sclust); /* Update start cluster */
mimi3	10:b48d3ace55db	2849	tm = GET_FATTIME(); /* Update modified time */
mimi3	10:b48d3ace55db	2850	ST_DWORD(dir + DIR_WrtTime, tm);
mimi3	10:b48d3ace55db	2851	ST_WORD(dir + DIR_LstAccDate, 0);
mimi3	10:b48d3ace55db	2852	fp->flag &= ~FA__WRITTEN;
mimi3	10:b48d3ace55db	2853	fp->fs->wflag = 1;
mimi3	10:b48d3ace55db	2854	res = sync_fs(fp->fs);
mimi3	10:b48d3ace55db	2855	}
mimi3	10:b48d3ace55db	2856	}
mimi3	10:b48d3ace55db	2857	}
mimi3	10:b48d3ace55db	2858
mimi3	10:b48d3ace55db	2859	LEAVE_FF(fp->fs, res);
mimi3	10:b48d3ace55db	2860	}
mimi3	10:b48d3ace55db	2861
mimi3	10:b48d3ace55db	2862	#endif /* !_FS_READONLY */
mimi3	10:b48d3ace55db	2863
mimi3	10:b48d3ace55db	2864
mimi3	10:b48d3ace55db	2865
mimi3	10:b48d3ace55db	2866
mimi3	10:b48d3ace55db	2867	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2868	/* Close File */
mimi3	10:b48d3ace55db	2869	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2870
mimi3	10:b48d3ace55db	2871	FRESULT f_close (
mimi3	10:b48d3ace55db	2872	FIL fp / Pointer to the file object to be closed */
mimi3	10:b48d3ace55db	2873	)
mimi3	10:b48d3ace55db	2874	{
mimi3	10:b48d3ace55db	2875	FRESULT res;
mimi3	10:b48d3ace55db	2876
mimi3	10:b48d3ace55db	2877
mimi3	10:b48d3ace55db	2878	#if !_FS_READONLY
mimi3	10:b48d3ace55db	2879	res = f_sync(fp); /* Flush cached data */
mimi3	10:b48d3ace55db	2880	if (res == FR_OK)
mimi3	10:b48d3ace55db	2881	#endif
mimi3	10:b48d3ace55db	2882	{
mimi3	10:b48d3ace55db	2883	res = validate(fp); /* Lock volume */
mimi3	10:b48d3ace55db	2884	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2885	#if _FS_REENTRANT
mimi3	10:b48d3ace55db	2886	FATFS *fs = fp->fs;
mimi3	10:b48d3ace55db	2887	#endif
mimi3	10:b48d3ace55db	2888	#if _FS_LOCK
mimi3	10:b48d3ace55db	2889	res = dec_lock(fp->lockid); /* Decrement file open counter */
mimi3	10:b48d3ace55db	2890	if (res == FR_OK)
mimi3	10:b48d3ace55db	2891	#endif
mimi3	10:b48d3ace55db	2892	fp->fs = 0; /* Invalidate file object */
mimi3	10:b48d3ace55db	2893	#if _FS_REENTRANT
mimi3	10:b48d3ace55db	2894	unlock_fs(fs, FR_OK); /* Unlock volume */
mimi3	10:b48d3ace55db	2895	#endif
mimi3	10:b48d3ace55db	2896	}
mimi3	10:b48d3ace55db	2897	}
mimi3	10:b48d3ace55db	2898	return res;
mimi3	10:b48d3ace55db	2899	}
mimi3	10:b48d3ace55db	2900
mimi3	10:b48d3ace55db	2901
mimi3	10:b48d3ace55db	2902
mimi3	10:b48d3ace55db	2903
mimi3	10:b48d3ace55db	2904	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2905	/* Change Current Directory or Current Drive, Get Current Directory */
mimi3	10:b48d3ace55db	2906	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	2907
mimi3	10:b48d3ace55db	2908	#if _FS_RPATH >= 1
mimi3	10:b48d3ace55db	2909	#if _VOLUMES >= 2
mimi3	10:b48d3ace55db	2910	FRESULT f_chdrive (
mimi3	10:b48d3ace55db	2911	const TCHAR* path /* Drive number */
mimi3	10:b48d3ace55db	2912	)
mimi3	10:b48d3ace55db	2913	{
mimi3	10:b48d3ace55db	2914	int vol;
mimi3	10:b48d3ace55db	2915
mimi3	10:b48d3ace55db	2916
mimi3	10:b48d3ace55db	2917	vol = get_ldnumber(&path);
mimi3	10:b48d3ace55db	2918	if (vol < 0) return FR_INVALID_DRIVE;
mimi3	10:b48d3ace55db	2919
mimi3	10:b48d3ace55db	2920	CurrVol = (BYTE)vol;
mimi3	10:b48d3ace55db	2921
mimi3	10:b48d3ace55db	2922	return FR_OK;
mimi3	10:b48d3ace55db	2923	}
mimi3	10:b48d3ace55db	2924	#endif
mimi3	10:b48d3ace55db	2925
mimi3	10:b48d3ace55db	2926
mimi3	10:b48d3ace55db	2927	FRESULT f_chdir (
mimi3	10:b48d3ace55db	2928	const TCHAR* path /* Pointer to the directory path */
mimi3	10:b48d3ace55db	2929	)
mimi3	10:b48d3ace55db	2930	{
mimi3	10:b48d3ace55db	2931	FRESULT res;
mimi3	10:b48d3ace55db	2932	FATFS_DIR dj;
mimi3	10:b48d3ace55db	2933	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	2934
mimi3	10:b48d3ace55db	2935
mimi3	10:b48d3ace55db	2936	/* Get logical drive number */
mimi3	10:b48d3ace55db	2937	res = find_volume(&dj.fs, &path, 0);
mimi3	10:b48d3ace55db	2938	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2939	INIT_BUF(dj);
mimi3	10:b48d3ace55db	2940	res = follow_path(&dj, path); /* Follow the path */
mimi3	10:b48d3ace55db	2941	FREE_BUF();
mimi3	10:b48d3ace55db	2942	if (res == FR_OK) { /* Follow completed */
mimi3	10:b48d3ace55db	2943	if (!dj.dir) {
mimi3	10:b48d3ace55db	2944	dj.fs->cdir = dj.sclust; /* Start directory itself */
mimi3	10:b48d3ace55db	2945	} else {
mimi3	10:b48d3ace55db	2946	if (dj.dir[DIR_Attr] & AM_DIR) /* Reached to the directory */
mimi3	10:b48d3ace55db	2947	dj.fs->cdir = ld_clust(dj.fs, dj.dir);
mimi3	10:b48d3ace55db	2948	else
mimi3	10:b48d3ace55db	2949	res = FR_NO_PATH; /* Reached but a file */
mimi3	10:b48d3ace55db	2950	}
mimi3	10:b48d3ace55db	2951	}
mimi3	10:b48d3ace55db	2952	if (res == FR_NO_FILE) res = FR_NO_PATH;
mimi3	10:b48d3ace55db	2953	}
mimi3	10:b48d3ace55db	2954
mimi3	10:b48d3ace55db	2955	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	2956	}
mimi3	10:b48d3ace55db	2957
mimi3	10:b48d3ace55db	2958
mimi3	10:b48d3ace55db	2959	#if _FS_RPATH >= 2
mimi3	10:b48d3ace55db	2960	FRESULT f_getcwd (
mimi3	10:b48d3ace55db	2961	TCHAR* buff, /* Pointer to the directory path */
mimi3	10:b48d3ace55db	2962	UINT len /* Size of path */
mimi3	10:b48d3ace55db	2963	)
mimi3	10:b48d3ace55db	2964	{
mimi3	10:b48d3ace55db	2965	FRESULT res;
mimi3	10:b48d3ace55db	2966	FATFS_DIR dj;
mimi3	10:b48d3ace55db	2967	UINT i, n;
mimi3	10:b48d3ace55db	2968	DWORD ccl;
mimi3	10:b48d3ace55db	2969	TCHAR *tp;
mimi3	10:b48d3ace55db	2970	FILINFO fno;
mimi3	10:b48d3ace55db	2971	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	2972
mimi3	10:b48d3ace55db	2973
mimi3	10:b48d3ace55db	2974	*buff = 0;
mimi3	10:b48d3ace55db	2975	/* Get logical drive number */
mimi3	10:b48d3ace55db	2976	res = find_volume(&dj.fs, (const TCHAR*)&buff, 0); / Get current volume */
mimi3	10:b48d3ace55db	2977	if (res == FR_OK) {
mimi3	10:b48d3ace55db	2978	INIT_BUF(dj);
mimi3	10:b48d3ace55db	2979	i = len; /* Bottom of buffer (directory stack base) */
mimi3	10:b48d3ace55db	2980	dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
mimi3	10:b48d3ace55db	2981	while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
mimi3	10:b48d3ace55db	2982	res = dir_sdi(&dj, 1); /* Get parent directory */
mimi3	10:b48d3ace55db	2983	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	2984	res = dir_read(&dj, 0);
mimi3	10:b48d3ace55db	2985	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	2986	dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
mimi3	10:b48d3ace55db	2987	res = dir_sdi(&dj, 0);
mimi3	10:b48d3ace55db	2988	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	2989	do { /* Find the entry links to the child directory */
mimi3	10:b48d3ace55db	2990	res = dir_read(&dj, 0);
mimi3	10:b48d3ace55db	2991	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	2992	if (ccl == ld_clust(dj.fs, dj.dir)) break; /* Found the entry */
mimi3	10:b48d3ace55db	2993	res = dir_next(&dj, 0);
mimi3	10:b48d3ace55db	2994	} while (res == FR_OK);
mimi3	10:b48d3ace55db	2995	if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
mimi3	10:b48d3ace55db	2996	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	2997	#if _USE_LFN
mimi3	10:b48d3ace55db	2998	fno.lfname = buff;
mimi3	10:b48d3ace55db	2999	fno.lfsize = i;
mimi3	10:b48d3ace55db	3000	#endif
mimi3	10:b48d3ace55db	3001	get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
mimi3	10:b48d3ace55db	3002	tp = fno.fname;
mimi3	10:b48d3ace55db	3003	#if _USE_LFN
mimi3	10:b48d3ace55db	3004	if (*buff) tp = buff;
mimi3	10:b48d3ace55db	3005	#endif
mimi3	10:b48d3ace55db	3006	for (n = 0; tp[n]; n++) ;
mimi3	10:b48d3ace55db	3007	if (i < n + 3) {
mimi3	10:b48d3ace55db	3008	res = FR_NOT_ENOUGH_CORE; break;
mimi3	10:b48d3ace55db	3009	}
mimi3	10:b48d3ace55db	3010	while (n) buff[--i] = tp[--n];
mimi3	10:b48d3ace55db	3011	buff[--i] = '/';
mimi3	10:b48d3ace55db	3012	}
mimi3	10:b48d3ace55db	3013	tp = buff;
mimi3	10:b48d3ace55db	3014	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3015	#if _VOLUMES >= 2
mimi3	10:b48d3ace55db	3016	tp++ = '0' + CurrVol; / Put drive number */
mimi3	10:b48d3ace55db	3017	*tp++ = ':';
mimi3	10:b48d3ace55db	3018	#endif
mimi3	10:b48d3ace55db	3019	if (i == len) { /* Root-directory */
mimi3	10:b48d3ace55db	3020	*tp++ = '/';
mimi3	10:b48d3ace55db	3021	} else { /* Sub-directroy */
mimi3	10:b48d3ace55db	3022	do /* Add stacked path str */
mimi3	10:b48d3ace55db	3023	*tp++ = buff[i++];
mimi3	10:b48d3ace55db	3024	while (i < len);
mimi3	10:b48d3ace55db	3025	}
mimi3	10:b48d3ace55db	3026	}
mimi3	10:b48d3ace55db	3027	*tp = 0;
mimi3	10:b48d3ace55db	3028	FREE_BUF();
mimi3	10:b48d3ace55db	3029	}
mimi3	10:b48d3ace55db	3030
mimi3	10:b48d3ace55db	3031	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	3032	}
mimi3	10:b48d3ace55db	3033	#endif /* _FS_RPATH >= 2 */
mimi3	10:b48d3ace55db	3034	#endif /* _FS_RPATH >= 1 */
mimi3	10:b48d3ace55db	3035
mimi3	10:b48d3ace55db	3036
mimi3	10:b48d3ace55db	3037
mimi3	10:b48d3ace55db	3038	#if _FS_MINIMIZE <= 2
mimi3	10:b48d3ace55db	3039	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3040	/* Seek File R/W Pointer */
mimi3	10:b48d3ace55db	3041	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3042
mimi3	10:b48d3ace55db	3043	FRESULT f_lseek (
mimi3	10:b48d3ace55db	3044	FIL* fp, /* Pointer to the file object */
mimi3	10:b48d3ace55db	3045	DWORD ofs /* File pointer from top of file */
mimi3	10:b48d3ace55db	3046	)
mimi3	10:b48d3ace55db	3047	{
mimi3	10:b48d3ace55db	3048	FRESULT res;
mimi3	10:b48d3ace55db	3049	DWORD clst, bcs, nsect, ifptr;
mimi3	10:b48d3ace55db	3050	#if _USE_FASTSEEK
mimi3	10:b48d3ace55db	3051	DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
mimi3	10:b48d3ace55db	3052	#endif
mimi3	10:b48d3ace55db	3053
mimi3	10:b48d3ace55db	3054
mimi3	10:b48d3ace55db	3055	res = validate(fp); /* Check validity of the object */
mimi3	10:b48d3ace55db	3056	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mimi3	10:b48d3ace55db	3057	if (fp->err) /* Check error */
mimi3	10:b48d3ace55db	3058	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mimi3	10:b48d3ace55db	3059
mimi3	10:b48d3ace55db	3060	#if _USE_FASTSEEK
mimi3	10:b48d3ace55db	3061	if (fp->cltbl) { /* Fast seek */
mimi3	10:b48d3ace55db	3062	if (ofs == CREATE_LINKMAP) { /* Create CLMT */
mimi3	10:b48d3ace55db	3063	tbl = fp->cltbl;
mimi3	10:b48d3ace55db	3064	tlen = tbl++; ulen = 2; / Given table size and required table size */
mimi3	10:b48d3ace55db	3065	cl = fp->sclust; /* Top of the chain */
mimi3	10:b48d3ace55db	3066	if (cl) {
mimi3	10:b48d3ace55db	3067	do {
mimi3	10:b48d3ace55db	3068	/* Get a fragment */
mimi3	10:b48d3ace55db	3069	tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
mimi3	10:b48d3ace55db	3070	do {
mimi3	10:b48d3ace55db	3071	pcl = cl; ncl++;
mimi3	10:b48d3ace55db	3072	cl = get_fat(fp->fs, cl);
mimi3	10:b48d3ace55db	3073	if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	3074	if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	3075	} while (cl == pcl + 1);
mimi3	10:b48d3ace55db	3076	if (ulen <= tlen) { /* Store the length and top of the fragment */
mimi3	10:b48d3ace55db	3077	tbl++ = ncl; tbl++ = tcl;
mimi3	10:b48d3ace55db	3078	}
mimi3	10:b48d3ace55db	3079	} while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
mimi3	10:b48d3ace55db	3080	}
mimi3	10:b48d3ace55db	3081	fp->cltbl = ulen; / Number of items used */
mimi3	10:b48d3ace55db	3082	if (ulen <= tlen)
mimi3	10:b48d3ace55db	3083	tbl = 0; / Terminate table */
mimi3	10:b48d3ace55db	3084	else
mimi3	10:b48d3ace55db	3085	res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
mimi3	10:b48d3ace55db	3086
mimi3	10:b48d3ace55db	3087	} else { /* Fast seek */
mimi3	10:b48d3ace55db	3088	if (ofs > fp->fsize) /* Clip offset at the file size */
mimi3	10:b48d3ace55db	3089	ofs = fp->fsize;
mimi3	10:b48d3ace55db	3090	fp->fptr = ofs; /* Set file pointer */
mimi3	10:b48d3ace55db	3091	if (ofs) {
mimi3	10:b48d3ace55db	3092	fp->clust = clmt_clust(fp, ofs - 1);
mimi3	10:b48d3ace55db	3093	dsc = clust2sect(fp->fs, fp->clust);
mimi3	10:b48d3ace55db	3094	if (!dsc) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	3095	dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
mimi3	10:b48d3ace55db	3096	if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */
mimi3	10:b48d3ace55db	3097	#if !_FS_TINY
mimi3	10:b48d3ace55db	3098	#if !_FS_READONLY
mimi3	10:b48d3ace55db	3099	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mimi3	10:b48d3ace55db	3100	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mimi3	10:b48d3ace55db	3101	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	3102	fp->flag &= ~FA__DIRTY;
mimi3	10:b48d3ace55db	3103	}
mimi3	10:b48d3ace55db	3104	#endif
mimi3	10:b48d3ace55db	3105	if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) /* Load current sector */
mimi3	10:b48d3ace55db	3106	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	3107	#endif
mimi3	10:b48d3ace55db	3108	fp->dsect = dsc;
mimi3	10:b48d3ace55db	3109	}
mimi3	10:b48d3ace55db	3110	}
mimi3	10:b48d3ace55db	3111	}
mimi3	10:b48d3ace55db	3112	} else
mimi3	10:b48d3ace55db	3113	#endif
mimi3	10:b48d3ace55db	3114
mimi3	10:b48d3ace55db	3115	/* Normal Seek */
mimi3	10:b48d3ace55db	3116	{
mimi3	10:b48d3ace55db	3117	if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
mimi3	10:b48d3ace55db	3118	#if !_FS_READONLY
mimi3	10:b48d3ace55db	3119	&& !(fp->flag & FA_WRITE)
mimi3	10:b48d3ace55db	3120	#endif
mimi3	10:b48d3ace55db	3121	) ofs = fp->fsize;
mimi3	10:b48d3ace55db	3122
mimi3	10:b48d3ace55db	3123	ifptr = fp->fptr;
mimi3	10:b48d3ace55db	3124	fp->fptr = nsect = 0;
mimi3	10:b48d3ace55db	3125	if (ofs) {
mimi3	10:b48d3ace55db	3126	bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
mimi3	10:b48d3ace55db	3127	if (ifptr > 0 &&
mimi3	10:b48d3ace55db	3128	(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
mimi3	10:b48d3ace55db	3129	fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
mimi3	10:b48d3ace55db	3130	ofs -= fp->fptr;
mimi3	10:b48d3ace55db	3131	clst = fp->clust;
mimi3	10:b48d3ace55db	3132	} else { /* When seek to back cluster, */
mimi3	10:b48d3ace55db	3133	clst = fp->sclust; /* start from the first cluster */
mimi3	10:b48d3ace55db	3134	#if !_FS_READONLY
mimi3	10:b48d3ace55db	3135	if (clst == 0) { /* If no cluster chain, create a new chain */
mimi3	10:b48d3ace55db	3136	clst = create_chain(fp->fs, 0);
mimi3	10:b48d3ace55db	3137	if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	3138	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	3139	fp->sclust = clst;
mimi3	10:b48d3ace55db	3140	}
mimi3	10:b48d3ace55db	3141	#endif
mimi3	10:b48d3ace55db	3142	fp->clust = clst;
mimi3	10:b48d3ace55db	3143	}
mimi3	10:b48d3ace55db	3144	if (clst != 0) {
mimi3	10:b48d3ace55db	3145	while (ofs > bcs) { /* Cluster following loop */
mimi3	10:b48d3ace55db	3146	#if !_FS_READONLY
mimi3	10:b48d3ace55db	3147	if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
mimi3	10:b48d3ace55db	3148	clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
mimi3	10:b48d3ace55db	3149	if (clst == 0) { /* When disk gets full, clip file size */
mimi3	10:b48d3ace55db	3150	ofs = bcs; break;
mimi3	10:b48d3ace55db	3151	}
mimi3	10:b48d3ace55db	3152	} else
mimi3	10:b48d3ace55db	3153	#endif
mimi3	10:b48d3ace55db	3154	clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
mimi3	10:b48d3ace55db	3155	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	3156	if (clst <= 1 \|\| clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	3157	fp->clust = clst;
mimi3	10:b48d3ace55db	3158	fp->fptr += bcs;
mimi3	10:b48d3ace55db	3159	ofs -= bcs;
mimi3	10:b48d3ace55db	3160	}
mimi3	10:b48d3ace55db	3161	fp->fptr += ofs;
mimi3	10:b48d3ace55db	3162	if (ofs % SS(fp->fs)) {
mimi3	10:b48d3ace55db	3163	nsect = clust2sect(fp->fs, clst); /* Current sector */
mimi3	10:b48d3ace55db	3164	if (!nsect) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	3165	nsect += ofs / SS(fp->fs);
mimi3	10:b48d3ace55db	3166	}
mimi3	10:b48d3ace55db	3167	}
mimi3	10:b48d3ace55db	3168	}
mimi3	10:b48d3ace55db	3169	if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */
mimi3	10:b48d3ace55db	3170	#if !_FS_TINY
mimi3	10:b48d3ace55db	3171	#if !_FS_READONLY
mimi3	10:b48d3ace55db	3172	if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
mimi3	10:b48d3ace55db	3173	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mimi3	10:b48d3ace55db	3174	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	3175	fp->flag &= ~FA__DIRTY;
mimi3	10:b48d3ace55db	3176	}
mimi3	10:b48d3ace55db	3177	#endif
mimi3	10:b48d3ace55db	3178	if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK) /* Fill sector cache */
mimi3	10:b48d3ace55db	3179	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	3180	#endif
mimi3	10:b48d3ace55db	3181	fp->dsect = nsect;
mimi3	10:b48d3ace55db	3182	}
mimi3	10:b48d3ace55db	3183	#if !_FS_READONLY
mimi3	10:b48d3ace55db	3184	if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
mimi3	10:b48d3ace55db	3185	fp->fsize = fp->fptr;
mimi3	10:b48d3ace55db	3186	fp->flag \|= FA__WRITTEN;
mimi3	10:b48d3ace55db	3187	}
mimi3	10:b48d3ace55db	3188	#endif
mimi3	10:b48d3ace55db	3189	}
mimi3	10:b48d3ace55db	3190
mimi3	10:b48d3ace55db	3191	LEAVE_FF(fp->fs, res);
mimi3	10:b48d3ace55db	3192	}
mimi3	10:b48d3ace55db	3193
mimi3	10:b48d3ace55db	3194
mimi3	10:b48d3ace55db	3195
mimi3	10:b48d3ace55db	3196	#if _FS_MINIMIZE <= 1
mimi3	10:b48d3ace55db	3197	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3198	/* Create a Directory Object */
mimi3	10:b48d3ace55db	3199	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3200
mimi3	10:b48d3ace55db	3201	FRESULT f_opendir (
mimi3	10:b48d3ace55db	3202	FATFS_DIR* dp, /* Pointer to directory object to create */
mimi3	10:b48d3ace55db	3203	const TCHAR* path /* Pointer to the directory path */
mimi3	10:b48d3ace55db	3204	)
mimi3	10:b48d3ace55db	3205	{
mimi3	10:b48d3ace55db	3206	FRESULT res;
mimi3	10:b48d3ace55db	3207	FATFS* fs;
mimi3	10:b48d3ace55db	3208	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	3209
mimi3	10:b48d3ace55db	3210
mimi3	10:b48d3ace55db	3211	if (!dp) return FR_INVALID_OBJECT;
mimi3	10:b48d3ace55db	3212
mimi3	10:b48d3ace55db	3213	/* Get logical drive number */
mimi3	10:b48d3ace55db	3214	res = find_volume(&fs, &path, 0);
mimi3	10:b48d3ace55db	3215	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3216	dp->fs = fs;
mimi3	10:b48d3ace55db	3217	INIT_BUF(*dp);
mimi3	10:b48d3ace55db	3218	res = follow_path(dp, path); /* Follow the path to the directory */
mimi3	10:b48d3ace55db	3219	FREE_BUF();
mimi3	10:b48d3ace55db	3220	if (res == FR_OK) { /* Follow completed */
mimi3	10:b48d3ace55db	3221	if (dp->dir) { /* It is not the origin directory itself */
mimi3	10:b48d3ace55db	3222	if (dp->dir[DIR_Attr] & AM_DIR) /* The object is a sub directory */
mimi3	10:b48d3ace55db	3223	dp->sclust = ld_clust(fs, dp->dir);
mimi3	10:b48d3ace55db	3224	else /* The object is a file */
mimi3	10:b48d3ace55db	3225	res = FR_NO_PATH;
mimi3	10:b48d3ace55db	3226	}
mimi3	10:b48d3ace55db	3227	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3228	dp->id = fs->id;
mimi3	10:b48d3ace55db	3229	res = dir_sdi(dp, 0); /* Rewind directory */
mimi3	10:b48d3ace55db	3230	#if _FS_LOCK
mimi3	10:b48d3ace55db	3231	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3232	if (dp->sclust) {
mimi3	10:b48d3ace55db	3233	dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
mimi3	10:b48d3ace55db	3234	if (!dp->lockid)
mimi3	10:b48d3ace55db	3235	res = FR_TOO_MANY_OPEN_FILES;
mimi3	10:b48d3ace55db	3236	} else {
mimi3	10:b48d3ace55db	3237	dp->lockid = 0; /* Root directory need not to be locked */
mimi3	10:b48d3ace55db	3238	}
mimi3	10:b48d3ace55db	3239	}
mimi3	10:b48d3ace55db	3240	#endif
mimi3	10:b48d3ace55db	3241	}
mimi3	10:b48d3ace55db	3242	}
mimi3	10:b48d3ace55db	3243	if (res == FR_NO_FILE) res = FR_NO_PATH;
mimi3	10:b48d3ace55db	3244	}
mimi3	10:b48d3ace55db	3245	if (res != FR_OK) dp->fs = 0; /* Invalidate the directory object if function faild */
mimi3	10:b48d3ace55db	3246
mimi3	10:b48d3ace55db	3247	LEAVE_FF(fs, res);
mimi3	10:b48d3ace55db	3248	}
mimi3	10:b48d3ace55db	3249
mimi3	10:b48d3ace55db	3250
mimi3	10:b48d3ace55db	3251
mimi3	10:b48d3ace55db	3252
mimi3	10:b48d3ace55db	3253	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3254	/* Close Directory */
mimi3	10:b48d3ace55db	3255	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3256
mimi3	10:b48d3ace55db	3257	FRESULT f_closedir (
mimi3	10:b48d3ace55db	3258	FATFS_DIR dp / Pointer to the directory object to be closed */
mimi3	10:b48d3ace55db	3259	)
mimi3	10:b48d3ace55db	3260	{
mimi3	10:b48d3ace55db	3261	FRESULT res;
mimi3	10:b48d3ace55db	3262
mimi3	10:b48d3ace55db	3263
mimi3	10:b48d3ace55db	3264	res = validate(dp);
mimi3	10:b48d3ace55db	3265	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3266	#if _FS_REENTRANT
mimi3	10:b48d3ace55db	3267	FATFS *fs = dp->fs;
mimi3	10:b48d3ace55db	3268	#endif
mimi3	10:b48d3ace55db	3269	#if _FS_LOCK
mimi3	10:b48d3ace55db	3270	if (dp->lockid) /* Decrement sub-directory open counter */
mimi3	10:b48d3ace55db	3271	res = dec_lock(dp->lockid);
mimi3	10:b48d3ace55db	3272	if (res == FR_OK)
mimi3	10:b48d3ace55db	3273	#endif
mimi3	10:b48d3ace55db	3274	dp->fs = 0; /* Invalidate directory object */
mimi3	10:b48d3ace55db	3275	#if _FS_REENTRANT
mimi3	10:b48d3ace55db	3276	unlock_fs(fs, FR_OK); /* Unlock volume */
mimi3	10:b48d3ace55db	3277	#endif
mimi3	10:b48d3ace55db	3278	}
mimi3	10:b48d3ace55db	3279	return res;
mimi3	10:b48d3ace55db	3280	}
mimi3	10:b48d3ace55db	3281
mimi3	10:b48d3ace55db	3282
mimi3	10:b48d3ace55db	3283
mimi3	10:b48d3ace55db	3284
mimi3	10:b48d3ace55db	3285	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3286	/* Read Directory Entries in Sequence */
mimi3	10:b48d3ace55db	3287	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3288
mimi3	10:b48d3ace55db	3289	FRESULT f_readdir (
mimi3	10:b48d3ace55db	3290	FATFS_DIR* dp, /* Pointer to the open directory object */
mimi3	10:b48d3ace55db	3291	FILINFO* fno /* Pointer to file information to return */
mimi3	10:b48d3ace55db	3292	)
mimi3	10:b48d3ace55db	3293	{
mimi3	10:b48d3ace55db	3294	FRESULT res;
mimi3	10:b48d3ace55db	3295	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	3296
mimi3	10:b48d3ace55db	3297
mimi3	10:b48d3ace55db	3298	res = validate(dp); /* Check validity of the object */
mimi3	10:b48d3ace55db	3299	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3300	if (!fno) {
mimi3	10:b48d3ace55db	3301	res = dir_sdi(dp, 0); /* Rewind the directory object */
mimi3	10:b48d3ace55db	3302	} else {
mimi3	10:b48d3ace55db	3303	INIT_BUF(*dp);
mimi3	10:b48d3ace55db	3304	res = dir_read(dp, 0); /* Read an item */
mimi3	10:b48d3ace55db	3305	if (res == FR_NO_FILE) { /* Reached end of directory */
mimi3	10:b48d3ace55db	3306	dp->sect = 0;
mimi3	10:b48d3ace55db	3307	res = FR_OK;
mimi3	10:b48d3ace55db	3308	}
mimi3	10:b48d3ace55db	3309	if (res == FR_OK) { /* A valid entry is found */
mimi3	10:b48d3ace55db	3310	get_fileinfo(dp, fno); /* Get the object information */
mimi3	10:b48d3ace55db	3311	res = dir_next(dp, 0); /* Increment index for next */
mimi3	10:b48d3ace55db	3312	if (res == FR_NO_FILE) {
mimi3	10:b48d3ace55db	3313	dp->sect = 0;
mimi3	10:b48d3ace55db	3314	res = FR_OK;
mimi3	10:b48d3ace55db	3315	}
mimi3	10:b48d3ace55db	3316	}
mimi3	10:b48d3ace55db	3317	FREE_BUF();
mimi3	10:b48d3ace55db	3318	}
mimi3	10:b48d3ace55db	3319	}
mimi3	10:b48d3ace55db	3320
mimi3	10:b48d3ace55db	3321	LEAVE_FF(dp->fs, res);
mimi3	10:b48d3ace55db	3322	}
mimi3	10:b48d3ace55db	3323
mimi3	10:b48d3ace55db	3324
mimi3	10:b48d3ace55db	3325
mimi3	10:b48d3ace55db	3326	#if _USE_FIND
mimi3	10:b48d3ace55db	3327	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3328	/* Find next file */
mimi3	10:b48d3ace55db	3329	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3330
mimi3	10:b48d3ace55db	3331	FRESULT f_findnext (
mimi3	10:b48d3ace55db	3332	FATFS_DIR* dp, /* Pointer to the open directory object */
mimi3	10:b48d3ace55db	3333	FILINFO* fno /* Pointer to the file information structure */
mimi3	10:b48d3ace55db	3334	)
mimi3	10:b48d3ace55db	3335	{
mimi3	10:b48d3ace55db	3336	FRESULT res;
mimi3	10:b48d3ace55db	3337
mimi3	10:b48d3ace55db	3338
mimi3	10:b48d3ace55db	3339	for (;;) {
mimi3	10:b48d3ace55db	3340	res = f_readdir(dp, fno); /* Get a directory item */
mimi3	10:b48d3ace55db	3341	if (res != FR_OK \|\| !fno \|\| !fno->fname[0]) break; /* Terminate if any error or end of directory */
mimi3	10:b48d3ace55db	3342	#if _USE_LFN
mimi3	10:b48d3ace55db	3343	if (fno->lfname && pattern_matching(dp->pat, fno->lfname, 0, 0)) break; /* Test for LFN if exist */
mimi3	10:b48d3ace55db	3344	#endif
mimi3	10:b48d3ace55db	3345	if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for SFN */
mimi3	10:b48d3ace55db	3346	}
mimi3	10:b48d3ace55db	3347	return res;
mimi3	10:b48d3ace55db	3348
mimi3	10:b48d3ace55db	3349	}
mimi3	10:b48d3ace55db	3350
mimi3	10:b48d3ace55db	3351
mimi3	10:b48d3ace55db	3352
mimi3	10:b48d3ace55db	3353	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3354	/* Find first file */
mimi3	10:b48d3ace55db	3355	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3356
mimi3	10:b48d3ace55db	3357	FRESULT f_findfirst (
mimi3	10:b48d3ace55db	3358	FATFS_DIR* dp, /* Pointer to the blank directory object */
mimi3	10:b48d3ace55db	3359	FILINFO* fno, /* Pointer to the file information structure */
mimi3	10:b48d3ace55db	3360	const TCHAR* path, /* Pointer to the directory to open */
mimi3	10:b48d3ace55db	3361	const TCHAR* pattern /* Pointer to the matching pattern */
mimi3	10:b48d3ace55db	3362	)
mimi3	10:b48d3ace55db	3363	{
mimi3	10:b48d3ace55db	3364	FRESULT res;
mimi3	10:b48d3ace55db	3365
mimi3	10:b48d3ace55db	3366
mimi3	10:b48d3ace55db	3367	dp->pat = pattern; /* Save pointer to pattern string */
mimi3	10:b48d3ace55db	3368	res = f_opendir(dp, path); /* Open the target directory */
mimi3	10:b48d3ace55db	3369	if (res == FR_OK)
mimi3	10:b48d3ace55db	3370	res = f_findnext(dp, fno); /* Find the first item */
mimi3	10:b48d3ace55db	3371	return res;
mimi3	10:b48d3ace55db	3372	}
mimi3	10:b48d3ace55db	3373
mimi3	10:b48d3ace55db	3374	#endif /* _USE_FIND */
mimi3	10:b48d3ace55db	3375
mimi3	10:b48d3ace55db	3376
mimi3	10:b48d3ace55db	3377
mimi3	10:b48d3ace55db	3378	#if _FS_MINIMIZE == 0
mimi3	10:b48d3ace55db	3379	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3380	/* Get File Status */
mimi3	10:b48d3ace55db	3381	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3382
mimi3	10:b48d3ace55db	3383	FRESULT f_stat (
mimi3	10:b48d3ace55db	3384	const TCHAR* path, /* Pointer to the file path */
mimi3	10:b48d3ace55db	3385	FILINFO* fno /* Pointer to file information to return */
mimi3	10:b48d3ace55db	3386	)
mimi3	10:b48d3ace55db	3387	{
mimi3	10:b48d3ace55db	3388	FRESULT res;
mimi3	10:b48d3ace55db	3389	FATFS_DIR dj;
mimi3	10:b48d3ace55db	3390	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	3391
mimi3	10:b48d3ace55db	3392
mimi3	10:b48d3ace55db	3393	/* Get logical drive number */
mimi3	10:b48d3ace55db	3394	res = find_volume(&dj.fs, &path, 0);
mimi3	10:b48d3ace55db	3395	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3396	INIT_BUF(dj);
mimi3	10:b48d3ace55db	3397	res = follow_path(&dj, path); /* Follow the file path */
mimi3	10:b48d3ace55db	3398	if (res == FR_OK) { /* Follow completed */
mimi3	10:b48d3ace55db	3399	if (dj.dir) { /* Found an object */
mimi3	10:b48d3ace55db	3400	if (fno) get_fileinfo(&dj, fno);
mimi3	10:b48d3ace55db	3401	} else { /* It is root directory */
mimi3	10:b48d3ace55db	3402	res = FR_INVALID_NAME;
mimi3	10:b48d3ace55db	3403	}
mimi3	10:b48d3ace55db	3404	}
mimi3	10:b48d3ace55db	3405	FREE_BUF();
mimi3	10:b48d3ace55db	3406	}
mimi3	10:b48d3ace55db	3407
mimi3	10:b48d3ace55db	3408	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	3409	}
mimi3	10:b48d3ace55db	3410
mimi3	10:b48d3ace55db	3411
mimi3	10:b48d3ace55db	3412
mimi3	10:b48d3ace55db	3413	#if !_FS_READONLY
mimi3	10:b48d3ace55db	3414	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3415	/* Get Number of Free Clusters */
mimi3	10:b48d3ace55db	3416	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3417
mimi3	10:b48d3ace55db	3418	FRESULT f_getfree (
mimi3	10:b48d3ace55db	3419	const TCHAR* path, /* Path name of the logical drive number */
mimi3	10:b48d3ace55db	3420	DWORD* nclst, /* Pointer to a variable to return number of free clusters */
mimi3	10:b48d3ace55db	3421	FATFS** fatfs /* Pointer to return pointer to corresponding file system object */
mimi3	10:b48d3ace55db	3422	)
mimi3	10:b48d3ace55db	3423	{
mimi3	10:b48d3ace55db	3424	FRESULT res;
mimi3	10:b48d3ace55db	3425	FATFS *fs;
mimi3	10:b48d3ace55db	3426	DWORD nfree, clst, sect, stat;
mimi3	10:b48d3ace55db	3427	UINT i;
mimi3	10:b48d3ace55db	3428	BYTE fat, *p;
mimi3	10:b48d3ace55db	3429
mimi3	10:b48d3ace55db	3430
mimi3	10:b48d3ace55db	3431	/* Get logical drive number */
mimi3	10:b48d3ace55db	3432	res = find_volume(fatfs, &path, 0);
mimi3	10:b48d3ace55db	3433	fs = *fatfs;
mimi3	10:b48d3ace55db	3434	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3435	/* If free_clust is valid, return it without full cluster scan */
mimi3	10:b48d3ace55db	3436	if (fs->free_clust <= fs->n_fatent - 2) {
mimi3	10:b48d3ace55db	3437	*nclst = fs->free_clust;
mimi3	10:b48d3ace55db	3438	} else {
mimi3	10:b48d3ace55db	3439	/* Get number of free clusters */
mimi3	10:b48d3ace55db	3440	fat = fs->fs_type;
mimi3	10:b48d3ace55db	3441	nfree = 0;
mimi3	10:b48d3ace55db	3442	if (fat == FS_FAT12) { /* Sector unalighed entries: Search FAT via regular routine. */
mimi3	10:b48d3ace55db	3443	clst = 2;
mimi3	10:b48d3ace55db	3444	do {
mimi3	10:b48d3ace55db	3445	stat = get_fat(fs, clst);
mimi3	10:b48d3ace55db	3446	if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
mimi3	10:b48d3ace55db	3447	if (stat == 1) { res = FR_INT_ERR; break; }
mimi3	10:b48d3ace55db	3448	if (stat == 0) nfree++;
mimi3	10:b48d3ace55db	3449	} while (++clst < fs->n_fatent);
mimi3	10:b48d3ace55db	3450	} else { /* Sector alighed entries: Accelerate the FAT search. */
mimi3	10:b48d3ace55db	3451	clst = fs->n_fatent; sect = fs->fatbase;
mimi3	10:b48d3ace55db	3452	i = 0; p = 0;
mimi3	10:b48d3ace55db	3453	do {
mimi3	10:b48d3ace55db	3454	if (!i) {
mimi3	10:b48d3ace55db	3455	res = move_window(fs, sect++);
mimi3	10:b48d3ace55db	3456	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	3457	p = fs->win;
mimi3	10:b48d3ace55db	3458	i = SS(fs);
mimi3	10:b48d3ace55db	3459	}
mimi3	10:b48d3ace55db	3460	if (fat == FS_FAT16) {
mimi3	10:b48d3ace55db	3461	if (LD_WORD(p) == 0) nfree++;
mimi3	10:b48d3ace55db	3462	p += 2; i -= 2;
mimi3	10:b48d3ace55db	3463	} else {
mimi3	10:b48d3ace55db	3464	if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) nfree++;
mimi3	10:b48d3ace55db	3465	p += 4; i -= 4;
mimi3	10:b48d3ace55db	3466	}
mimi3	10:b48d3ace55db	3467	} while (--clst);
mimi3	10:b48d3ace55db	3468	}
mimi3	10:b48d3ace55db	3469	fs->free_clust = nfree; /* free_clust is valid */
mimi3	10:b48d3ace55db	3470	fs->fsi_flag \|= 1; /* FSInfo is to be updated */
mimi3	10:b48d3ace55db	3471	nclst = nfree; / Return the free clusters */
mimi3	10:b48d3ace55db	3472	}
mimi3	10:b48d3ace55db	3473	}
mimi3	10:b48d3ace55db	3474	LEAVE_FF(fs, res);
mimi3	10:b48d3ace55db	3475	}
mimi3	10:b48d3ace55db	3476
mimi3	10:b48d3ace55db	3477
mimi3	10:b48d3ace55db	3478
mimi3	10:b48d3ace55db	3479
mimi3	10:b48d3ace55db	3480	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3481	/* Truncate File */
mimi3	10:b48d3ace55db	3482	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3483
mimi3	10:b48d3ace55db	3484	FRESULT f_truncate (
mimi3	10:b48d3ace55db	3485	FIL* fp /* Pointer to the file object */
mimi3	10:b48d3ace55db	3486	)
mimi3	10:b48d3ace55db	3487	{
mimi3	10:b48d3ace55db	3488	FRESULT res;
mimi3	10:b48d3ace55db	3489	DWORD ncl;
mimi3	10:b48d3ace55db	3490
mimi3	10:b48d3ace55db	3491
mimi3	10:b48d3ace55db	3492	res = validate(fp); /* Check validity of the object */
mimi3	10:b48d3ace55db	3493	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3494	if (fp->err) { /* Check error */
mimi3	10:b48d3ace55db	3495	res = (FRESULT)fp->err;
mimi3	10:b48d3ace55db	3496	} else {
mimi3	10:b48d3ace55db	3497	if (!(fp->flag & FA_WRITE)) /* Check access mode */
mimi3	10:b48d3ace55db	3498	res = FR_DENIED;
mimi3	10:b48d3ace55db	3499	}
mimi3	10:b48d3ace55db	3500	}
mimi3	10:b48d3ace55db	3501	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3502	if (fp->fsize > fp->fptr) {
mimi3	10:b48d3ace55db	3503	fp->fsize = fp->fptr; /* Set file size to current R/W point */
mimi3	10:b48d3ace55db	3504	fp->flag \|= FA__WRITTEN;
mimi3	10:b48d3ace55db	3505	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
mimi3	10:b48d3ace55db	3506	res = remove_chain(fp->fs, fp->sclust);
mimi3	10:b48d3ace55db	3507	fp->sclust = 0;
mimi3	10:b48d3ace55db	3508	} else { /* When truncate a part of the file, remove remaining clusters */
mimi3	10:b48d3ace55db	3509	ncl = get_fat(fp->fs, fp->clust);
mimi3	10:b48d3ace55db	3510	res = FR_OK;
mimi3	10:b48d3ace55db	3511	if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
mimi3	10:b48d3ace55db	3512	if (ncl == 1) res = FR_INT_ERR;
mimi3	10:b48d3ace55db	3513	if (res == FR_OK && ncl < fp->fs->n_fatent) {
mimi3	10:b48d3ace55db	3514	res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
mimi3	10:b48d3ace55db	3515	if (res == FR_OK) res = remove_chain(fp->fs, ncl);
mimi3	10:b48d3ace55db	3516	}
mimi3	10:b48d3ace55db	3517	}
mimi3	10:b48d3ace55db	3518	#if !_FS_TINY
mimi3	10:b48d3ace55db	3519	if (res == FR_OK && (fp->flag & FA__DIRTY)) {
mimi3	10:b48d3ace55db	3520	if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
mimi3	10:b48d3ace55db	3521	res = FR_DISK_ERR;
mimi3	10:b48d3ace55db	3522	else
mimi3	10:b48d3ace55db	3523	fp->flag &= ~FA__DIRTY;
mimi3	10:b48d3ace55db	3524	}
mimi3	10:b48d3ace55db	3525	#endif
mimi3	10:b48d3ace55db	3526	}
mimi3	10:b48d3ace55db	3527	if (res != FR_OK) fp->err = (FRESULT)res;
mimi3	10:b48d3ace55db	3528	}
mimi3	10:b48d3ace55db	3529
mimi3	10:b48d3ace55db	3530	LEAVE_FF(fp->fs, res);
mimi3	10:b48d3ace55db	3531	}
mimi3	10:b48d3ace55db	3532
mimi3	10:b48d3ace55db	3533
mimi3	10:b48d3ace55db	3534
mimi3	10:b48d3ace55db	3535
mimi3	10:b48d3ace55db	3536	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3537	/* Delete a File or Directory */
mimi3	10:b48d3ace55db	3538	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3539
mimi3	10:b48d3ace55db	3540	FRESULT f_unlink (
mimi3	10:b48d3ace55db	3541	const TCHAR* path /* Pointer to the file or directory path */
mimi3	10:b48d3ace55db	3542	)
mimi3	10:b48d3ace55db	3543	{
mimi3	10:b48d3ace55db	3544	FRESULT res;
mimi3	10:b48d3ace55db	3545	FATFS_DIR dj, sdj;
mimi3	10:b48d3ace55db	3546	BYTE *dir;
mimi3	10:b48d3ace55db	3547	DWORD dclst = 0;
mimi3	10:b48d3ace55db	3548	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	3549
mimi3	10:b48d3ace55db	3550
mimi3	10:b48d3ace55db	3551	/* Get logical drive number */
mimi3	10:b48d3ace55db	3552	res = find_volume(&dj.fs, &path, 1);
mimi3	10:b48d3ace55db	3553	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3554	INIT_BUF(dj);
mimi3	10:b48d3ace55db	3555	res = follow_path(&dj, path); /* Follow the file path */
mimi3	10:b48d3ace55db	3556	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mimi3	10:b48d3ace55db	3557	res = FR_INVALID_NAME; /* Cannot remove dot entry */
mimi3	10:b48d3ace55db	3558	#if _FS_LOCK
mimi3	10:b48d3ace55db	3559	if (res == FR_OK) res = chk_lock(&dj, 2); /* Cannot remove open object */
mimi3	10:b48d3ace55db	3560	#endif
mimi3	10:b48d3ace55db	3561	if (res == FR_OK) { /* The object is accessible */
mimi3	10:b48d3ace55db	3562	dir = dj.dir;
mimi3	10:b48d3ace55db	3563	if (!dir) {
mimi3	10:b48d3ace55db	3564	res = FR_INVALID_NAME; /* Cannot remove the origin directory */
mimi3	10:b48d3ace55db	3565	} else {
mimi3	10:b48d3ace55db	3566	if (dir[DIR_Attr] & AM_RDO)
mimi3	10:b48d3ace55db	3567	res = FR_DENIED; /* Cannot remove R/O object */
mimi3	10:b48d3ace55db	3568	}
mimi3	10:b48d3ace55db	3569	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3570	dclst = ld_clust(dj.fs, dir);
mimi3	10:b48d3ace55db	3571	if (dclst && (dir[DIR_Attr] & AM_DIR)) { /* Is it a sub-directory ? */
mimi3	10:b48d3ace55db	3572	#if _FS_RPATH
mimi3	10:b48d3ace55db	3573	if (dclst == dj.fs->cdir) { /* Is it the current directory? */
mimi3	10:b48d3ace55db	3574	res = FR_DENIED;
mimi3	10:b48d3ace55db	3575	} else
mimi3	10:b48d3ace55db	3576	#endif
mimi3	10:b48d3ace55db	3577	{
mimi3	10:b48d3ace55db	3578	mem_cpy(&sdj, &dj, sizeof (FATFS_DIR)); /* Open the sub-directory */
mimi3	10:b48d3ace55db	3579	sdj.sclust = dclst;
mimi3	10:b48d3ace55db	3580	res = dir_sdi(&sdj, 2);
mimi3	10:b48d3ace55db	3581	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3582	res = dir_read(&sdj, 0); /* Read an item (excluding dot entries) */
mimi3	10:b48d3ace55db	3583	if (res == FR_OK) res = FR_DENIED; /* Not empty? (cannot remove) */
mimi3	10:b48d3ace55db	3584	if (res == FR_NO_FILE) res = FR_OK; /* Empty? (can remove) */
mimi3	10:b48d3ace55db	3585	}
mimi3	10:b48d3ace55db	3586	}
mimi3	10:b48d3ace55db	3587	}
mimi3	10:b48d3ace55db	3588	}
mimi3	10:b48d3ace55db	3589	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3590	res = dir_remove(&dj); /* Remove the directory entry */
mimi3	10:b48d3ace55db	3591	if (res == FR_OK && dclst) /* Remove the cluster chain if exist */
mimi3	10:b48d3ace55db	3592	res = remove_chain(dj.fs, dclst);
mimi3	10:b48d3ace55db	3593	if (res == FR_OK) res = sync_fs(dj.fs);
mimi3	10:b48d3ace55db	3594	}
mimi3	10:b48d3ace55db	3595	}
mimi3	10:b48d3ace55db	3596	FREE_BUF();
mimi3	10:b48d3ace55db	3597	}
mimi3	10:b48d3ace55db	3598
mimi3	10:b48d3ace55db	3599	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	3600	}
mimi3	10:b48d3ace55db	3601
mimi3	10:b48d3ace55db	3602
mimi3	10:b48d3ace55db	3603
mimi3	10:b48d3ace55db	3604
mimi3	10:b48d3ace55db	3605	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3606	/* Create a Directory */
mimi3	10:b48d3ace55db	3607	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3608
mimi3	10:b48d3ace55db	3609	FRESULT f_mkdir (
mimi3	10:b48d3ace55db	3610	const TCHAR* path /* Pointer to the directory path */
mimi3	10:b48d3ace55db	3611	)
mimi3	10:b48d3ace55db	3612	{
mimi3	10:b48d3ace55db	3613	FRESULT res;
mimi3	10:b48d3ace55db	3614	FATFS_DIR dj;
mimi3	10:b48d3ace55db	3615	BYTE *dir, n;
mimi3	10:b48d3ace55db	3616	DWORD dsc, dcl, pcl, tm = GET_FATTIME();
mimi3	10:b48d3ace55db	3617	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	3618
mimi3	10:b48d3ace55db	3619
mimi3	10:b48d3ace55db	3620	/* Get logical drive number */
mimi3	10:b48d3ace55db	3621	res = find_volume(&dj.fs, &path, 1);
mimi3	10:b48d3ace55db	3622	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3623	INIT_BUF(dj);
mimi3	10:b48d3ace55db	3624	res = follow_path(&dj, path); /* Follow the file path */
mimi3	10:b48d3ace55db	3625	if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
mimi3	10:b48d3ace55db	3626	if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT))
mimi3	10:b48d3ace55db	3627	res = FR_INVALID_NAME;
mimi3	10:b48d3ace55db	3628	if (res == FR_NO_FILE) { /* Can create a new directory */
mimi3	10:b48d3ace55db	3629	dcl = create_chain(dj.fs, 0); /* Allocate a cluster for the new directory table */
mimi3	10:b48d3ace55db	3630	res = FR_OK;
mimi3	10:b48d3ace55db	3631	if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
mimi3	10:b48d3ace55db	3632	if (dcl == 1) res = FR_INT_ERR;
mimi3	10:b48d3ace55db	3633	if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
mimi3	10:b48d3ace55db	3634	if (res == FR_OK) /* Flush FAT */
mimi3	10:b48d3ace55db	3635	res = sync_window(dj.fs);
mimi3	10:b48d3ace55db	3636	if (res == FR_OK) { /* Initialize the new directory table */
mimi3	10:b48d3ace55db	3637	dsc = clust2sect(dj.fs, dcl);
mimi3	10:b48d3ace55db	3638	dir = dj.fs->win;
mimi3	10:b48d3ace55db	3639	mem_set(dir, 0, SS(dj.fs));
mimi3	10:b48d3ace55db	3640	mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */
mimi3	10:b48d3ace55db	3641	dir[DIR_Name] = '.';
mimi3	10:b48d3ace55db	3642	dir[DIR_Attr] = AM_DIR;
mimi3	10:b48d3ace55db	3643	ST_DWORD(dir + DIR_WrtTime, tm);
mimi3	10:b48d3ace55db	3644	st_clust(dir, dcl);
mimi3	10:b48d3ace55db	3645	mem_cpy(dir + SZ_DIRE, dir, SZ_DIRE); /* Create ".." entry */
mimi3	10:b48d3ace55db	3646	dir[SZ_DIRE + 1] = '.'; pcl = dj.sclust;
mimi3	10:b48d3ace55db	3647	if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
mimi3	10:b48d3ace55db	3648	pcl = 0;
mimi3	10:b48d3ace55db	3649	st_clust(dir + SZ_DIRE, pcl);
mimi3	10:b48d3ace55db	3650	for (n = dj.fs->csize; n; n--) { /* Write dot entries and clear following sectors */
mimi3	10:b48d3ace55db	3651	dj.fs->winsect = dsc++;
mimi3	10:b48d3ace55db	3652	dj.fs->wflag = 1;
mimi3	10:b48d3ace55db	3653	res = sync_window(dj.fs);
mimi3	10:b48d3ace55db	3654	if (res != FR_OK) break;
mimi3	10:b48d3ace55db	3655	mem_set(dir, 0, SS(dj.fs));
mimi3	10:b48d3ace55db	3656	}
mimi3	10:b48d3ace55db	3657	}
mimi3	10:b48d3ace55db	3658	if (res == FR_OK) res = dir_register(&dj); /* Register the object to the directoy */
mimi3	10:b48d3ace55db	3659	if (res != FR_OK) {
mimi3	10:b48d3ace55db	3660	remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
mimi3	10:b48d3ace55db	3661	} else {
mimi3	10:b48d3ace55db	3662	dir = dj.dir;
mimi3	10:b48d3ace55db	3663	dir[DIR_Attr] = AM_DIR; /* Attribute */
mimi3	10:b48d3ace55db	3664	ST_DWORD(dir + DIR_WrtTime, tm); /* Created time */
mimi3	10:b48d3ace55db	3665	st_clust(dir, dcl); /* Table start cluster */
mimi3	10:b48d3ace55db	3666	dj.fs->wflag = 1;
mimi3	10:b48d3ace55db	3667	res = sync_fs(dj.fs);
mimi3	10:b48d3ace55db	3668	}
mimi3	10:b48d3ace55db	3669	}
mimi3	10:b48d3ace55db	3670	FREE_BUF();
mimi3	10:b48d3ace55db	3671	}
mimi3	10:b48d3ace55db	3672
mimi3	10:b48d3ace55db	3673	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	3674	}
mimi3	10:b48d3ace55db	3675
mimi3	10:b48d3ace55db	3676
mimi3	10:b48d3ace55db	3677
mimi3	10:b48d3ace55db	3678
mimi3	10:b48d3ace55db	3679	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3680	/* Change Attribute */
mimi3	10:b48d3ace55db	3681	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3682
mimi3	10:b48d3ace55db	3683	FRESULT f_chmod (
mimi3	10:b48d3ace55db	3684	const TCHAR* path, /* Pointer to the file path */
mimi3	10:b48d3ace55db	3685	BYTE attr, /* Attribute bits */
mimi3	10:b48d3ace55db	3686	BYTE mask /* Attribute mask to change */
mimi3	10:b48d3ace55db	3687	)
mimi3	10:b48d3ace55db	3688	{
mimi3	10:b48d3ace55db	3689	FRESULT res;
mimi3	10:b48d3ace55db	3690	FATFS_DIR dj;
mimi3	10:b48d3ace55db	3691	BYTE *dir;
mimi3	10:b48d3ace55db	3692	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	3693
mimi3	10:b48d3ace55db	3694
mimi3	10:b48d3ace55db	3695	res = find_volume(&dj.fs, &path, 1); /* Get logical drive number */
mimi3	10:b48d3ace55db	3696	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3697	INIT_BUF(dj);
mimi3	10:b48d3ace55db	3698	res = follow_path(&dj, path); /* Follow the file path */
mimi3	10:b48d3ace55db	3699	FREE_BUF();
mimi3	10:b48d3ace55db	3700	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mimi3	10:b48d3ace55db	3701	res = FR_INVALID_NAME;
mimi3	10:b48d3ace55db	3702	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3703	dir = dj.dir;
mimi3	10:b48d3ace55db	3704	if (!dir) { /* Is it a root directory? */
mimi3	10:b48d3ace55db	3705	res = FR_INVALID_NAME;
mimi3	10:b48d3ace55db	3706	} else { /* File or sub directory */
mimi3	10:b48d3ace55db	3707	mask &= AM_RDO\|AM_HID\|AM_SYS\|AM_ARC; /* Valid attribute mask */
mimi3	10:b48d3ace55db	3708	dir[DIR_Attr] = (attr & mask) \| (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
mimi3	10:b48d3ace55db	3709	dj.fs->wflag = 1;
mimi3	10:b48d3ace55db	3710	res = sync_fs(dj.fs);
mimi3	10:b48d3ace55db	3711	}
mimi3	10:b48d3ace55db	3712	}
mimi3	10:b48d3ace55db	3713	}
mimi3	10:b48d3ace55db	3714
mimi3	10:b48d3ace55db	3715	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	3716	}
mimi3	10:b48d3ace55db	3717
mimi3	10:b48d3ace55db	3718
mimi3	10:b48d3ace55db	3719
mimi3	10:b48d3ace55db	3720
mimi3	10:b48d3ace55db	3721	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3722	/* Rename File/Directory */
mimi3	10:b48d3ace55db	3723	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3724
mimi3	10:b48d3ace55db	3725	FRESULT f_rename (
mimi3	10:b48d3ace55db	3726	const TCHAR* path_old, /* Pointer to the object to be renamed */
mimi3	10:b48d3ace55db	3727	const TCHAR* path_new /* Pointer to the new name */
mimi3	10:b48d3ace55db	3728	)
mimi3	10:b48d3ace55db	3729	{
mimi3	10:b48d3ace55db	3730	FRESULT res;
mimi3	10:b48d3ace55db	3731	FATFS_DIR djo, djn;
mimi3	10:b48d3ace55db	3732	BYTE buf[21], *dir;
mimi3	10:b48d3ace55db	3733	DWORD dw;
mimi3	10:b48d3ace55db	3734	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	3735
mimi3	10:b48d3ace55db	3736
mimi3	10:b48d3ace55db	3737	/* Get logical drive number of the source object */
mimi3	10:b48d3ace55db	3738	res = find_volume(&djo.fs, &path_old, 1);
mimi3	10:b48d3ace55db	3739	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3740	djn.fs = djo.fs;
mimi3	10:b48d3ace55db	3741	INIT_BUF(djo);
mimi3	10:b48d3ace55db	3742	res = follow_path(&djo, path_old); /* Check old object */
mimi3	10:b48d3ace55db	3743	if (_FS_RPATH && res == FR_OK && (djo.fn[NSFLAG] & NS_DOT))
mimi3	10:b48d3ace55db	3744	res = FR_INVALID_NAME;
mimi3	10:b48d3ace55db	3745	#if _FS_LOCK
mimi3	10:b48d3ace55db	3746	if (res == FR_OK) res = chk_lock(&djo, 2);
mimi3	10:b48d3ace55db	3747	#endif
mimi3	10:b48d3ace55db	3748	if (res == FR_OK) { /* Old object is found */
mimi3	10:b48d3ace55db	3749	if (!djo.dir) { /* Is root dir? */
mimi3	10:b48d3ace55db	3750	res = FR_NO_FILE;
mimi3	10:b48d3ace55db	3751	} else {
mimi3	10:b48d3ace55db	3752	mem_cpy(buf, djo.dir + DIR_Attr, 21); /* Save information about object except name */
mimi3	10:b48d3ace55db	3753	mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Duplicate the directory object */
mimi3	10:b48d3ace55db	3754	if (get_ldnumber(&path_new) >= 0) /* Snip drive number off and ignore it */
mimi3	10:b48d3ace55db	3755	res = follow_path(&djn, path_new); /* and make sure if new object name is not conflicting */
mimi3	10:b48d3ace55db	3756	else
mimi3	10:b48d3ace55db	3757	res = FR_INVALID_DRIVE;
mimi3	10:b48d3ace55db	3758	if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */
mimi3	10:b48d3ace55db	3759	if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
mimi3	10:b48d3ace55db	3760	res = dir_register(&djn); /* Register the new entry */
mimi3	10:b48d3ace55db	3761	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3762	/* Start of critical section where any interruption can cause a cross-link */
mimi3	10:b48d3ace55db	3763	dir = djn.dir; /* Copy information about object except name */
mimi3	10:b48d3ace55db	3764	mem_cpy(dir + 13, buf + 2, 19);
mimi3	10:b48d3ace55db	3765	dir[DIR_Attr] = buf[0] \| AM_ARC;
mimi3	10:b48d3ace55db	3766	djo.fs->wflag = 1;
mimi3	10:b48d3ace55db	3767	if ((dir[DIR_Attr] & AM_DIR) && djo.sclust != djn.sclust) { /* Update .. entry in the sub-directory if needed */
mimi3	10:b48d3ace55db	3768	dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
mimi3	10:b48d3ace55db	3769	if (!dw) {
mimi3	10:b48d3ace55db	3770	res = FR_INT_ERR;
mimi3	10:b48d3ace55db	3771	} else {
mimi3	10:b48d3ace55db	3772	res = move_window(djo.fs, dw);
mimi3	10:b48d3ace55db	3773	dir = djo.fs->win + SZ_DIRE * 1; /* Ptr to .. entry */
mimi3	10:b48d3ace55db	3774	if (res == FR_OK && dir[1] == '.') {
mimi3	10:b48d3ace55db	3775	st_clust(dir, djn.sclust);
mimi3	10:b48d3ace55db	3776	djo.fs->wflag = 1;
mimi3	10:b48d3ace55db	3777	}
mimi3	10:b48d3ace55db	3778	}
mimi3	10:b48d3ace55db	3779	}
mimi3	10:b48d3ace55db	3780	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3781	res = dir_remove(&djo); /* Remove old entry */
mimi3	10:b48d3ace55db	3782	if (res == FR_OK)
mimi3	10:b48d3ace55db	3783	res = sync_fs(djo.fs);
mimi3	10:b48d3ace55db	3784	}
mimi3	10:b48d3ace55db	3785	/* End of critical section */
mimi3	10:b48d3ace55db	3786	}
mimi3	10:b48d3ace55db	3787	}
mimi3	10:b48d3ace55db	3788	}
mimi3	10:b48d3ace55db	3789	}
mimi3	10:b48d3ace55db	3790	FREE_BUF();
mimi3	10:b48d3ace55db	3791	}
mimi3	10:b48d3ace55db	3792
mimi3	10:b48d3ace55db	3793	LEAVE_FF(djo.fs, res);
mimi3	10:b48d3ace55db	3794	}
mimi3	10:b48d3ace55db	3795
mimi3	10:b48d3ace55db	3796
mimi3	10:b48d3ace55db	3797
mimi3	10:b48d3ace55db	3798
mimi3	10:b48d3ace55db	3799	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3800	/* Change Timestamp */
mimi3	10:b48d3ace55db	3801	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3802
mimi3	10:b48d3ace55db	3803	FRESULT f_utime (
mimi3	10:b48d3ace55db	3804	const TCHAR* path, /* Pointer to the file/directory name */
mimi3	10:b48d3ace55db	3805	const FILINFO* fno /* Pointer to the time stamp to be set */
mimi3	10:b48d3ace55db	3806	)
mimi3	10:b48d3ace55db	3807	{
mimi3	10:b48d3ace55db	3808	FRESULT res;
mimi3	10:b48d3ace55db	3809	FATFS_DIR dj;
mimi3	10:b48d3ace55db	3810	BYTE *dir;
mimi3	10:b48d3ace55db	3811	DEFINE_NAMEBUF;
mimi3	10:b48d3ace55db	3812
mimi3	10:b48d3ace55db	3813
mimi3	10:b48d3ace55db	3814	/* Get logical drive number */
mimi3	10:b48d3ace55db	3815	res = find_volume(&dj.fs, &path, 1);
mimi3	10:b48d3ace55db	3816	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3817	INIT_BUF(dj);
mimi3	10:b48d3ace55db	3818	res = follow_path(&dj, path); /* Follow the file path */
mimi3	10:b48d3ace55db	3819	FREE_BUF();
mimi3	10:b48d3ace55db	3820	if (_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT))
mimi3	10:b48d3ace55db	3821	res = FR_INVALID_NAME;
mimi3	10:b48d3ace55db	3822	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3823	dir = dj.dir;
mimi3	10:b48d3ace55db	3824	if (!dir) { /* Root directory */
mimi3	10:b48d3ace55db	3825	res = FR_INVALID_NAME;
mimi3	10:b48d3ace55db	3826	} else { /* File or sub-directory */
mimi3	10:b48d3ace55db	3827	ST_WORD(dir + DIR_WrtTime, fno->ftime);
mimi3	10:b48d3ace55db	3828	ST_WORD(dir + DIR_WrtDate, fno->fdate);
mimi3	10:b48d3ace55db	3829	dj.fs->wflag = 1;
mimi3	10:b48d3ace55db	3830	res = sync_fs(dj.fs);
mimi3	10:b48d3ace55db	3831	}
mimi3	10:b48d3ace55db	3832	}
mimi3	10:b48d3ace55db	3833	}
mimi3	10:b48d3ace55db	3834
mimi3	10:b48d3ace55db	3835	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	3836	}
mimi3	10:b48d3ace55db	3837
mimi3	10:b48d3ace55db	3838	#endif /* !_FS_READONLY */
mimi3	10:b48d3ace55db	3839	#endif /* _FS_MINIMIZE == 0 */
mimi3	10:b48d3ace55db	3840	#endif /* _FS_MINIMIZE <= 1 */
mimi3	10:b48d3ace55db	3841	#endif /* _FS_MINIMIZE <= 2 */
mimi3	10:b48d3ace55db	3842
mimi3	10:b48d3ace55db	3843
mimi3	10:b48d3ace55db	3844
mimi3	10:b48d3ace55db	3845
mimi3	10:b48d3ace55db	3846	#if _USE_LABEL
mimi3	10:b48d3ace55db	3847	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3848	/* Get volume label */
mimi3	10:b48d3ace55db	3849	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3850
mimi3	10:b48d3ace55db	3851	FRESULT f_getlabel (
mimi3	10:b48d3ace55db	3852	const TCHAR* path, /* Path name of the logical drive number */
mimi3	10:b48d3ace55db	3853	TCHAR* label, /* Pointer to a buffer to return the volume label */
mimi3	10:b48d3ace55db	3854	DWORD* vsn /* Pointer to a variable to return the volume serial number */
mimi3	10:b48d3ace55db	3855	)
mimi3	10:b48d3ace55db	3856	{
mimi3	10:b48d3ace55db	3857	FRESULT res;
mimi3	10:b48d3ace55db	3858	FATFS_DIR dj;
mimi3	10:b48d3ace55db	3859	UINT i, j;
mimi3	10:b48d3ace55db	3860	#if _USE_LFN && _LFN_UNICODE
mimi3	10:b48d3ace55db	3861	WCHAR w;
mimi3	10:b48d3ace55db	3862	#endif
mimi3	10:b48d3ace55db	3863
mimi3	10:b48d3ace55db	3864
mimi3	10:b48d3ace55db	3865	/* Get logical drive number */
mimi3	10:b48d3ace55db	3866	res = find_volume(&dj.fs, &path, 0);
mimi3	10:b48d3ace55db	3867
mimi3	10:b48d3ace55db	3868	/* Get volume label */
mimi3	10:b48d3ace55db	3869	if (res == FR_OK && label) {
mimi3	10:b48d3ace55db	3870	dj.sclust = 0; /* Open root directory */
mimi3	10:b48d3ace55db	3871	res = dir_sdi(&dj, 0);
mimi3	10:b48d3ace55db	3872	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3873	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mimi3	10:b48d3ace55db	3874	if (res == FR_OK) { /* A volume label is exist */
mimi3	10:b48d3ace55db	3875	#if _USE_LFN && _LFN_UNICODE
mimi3	10:b48d3ace55db	3876	i = j = 0;
mimi3	10:b48d3ace55db	3877	do {
mimi3	10:b48d3ace55db	3878	w = (i < 11) ? dj.dir[i++] : ' ';
mimi3	10:b48d3ace55db	3879	if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
mimi3	10:b48d3ace55db	3880	w = w << 8 \| dj.dir[i++];
mimi3	10:b48d3ace55db	3881	label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
mimi3	10:b48d3ace55db	3882	} while (j < 11);
mimi3	10:b48d3ace55db	3883	#else
mimi3	10:b48d3ace55db	3884	mem_cpy(label, dj.dir, 11);
mimi3	10:b48d3ace55db	3885	#endif
mimi3	10:b48d3ace55db	3886	j = 11;
mimi3	10:b48d3ace55db	3887	do {
mimi3	10:b48d3ace55db	3888	label[j] = 0;
mimi3	10:b48d3ace55db	3889	if (!j) break;
mimi3	10:b48d3ace55db	3890	} while (label[--j] == ' ');
mimi3	10:b48d3ace55db	3891	}
mimi3	10:b48d3ace55db	3892	if (res == FR_NO_FILE) { /* No label, return nul string */
mimi3	10:b48d3ace55db	3893	label[0] = 0;
mimi3	10:b48d3ace55db	3894	res = FR_OK;
mimi3	10:b48d3ace55db	3895	}
mimi3	10:b48d3ace55db	3896	}
mimi3	10:b48d3ace55db	3897	}
mimi3	10:b48d3ace55db	3898
mimi3	10:b48d3ace55db	3899	/* Get volume serial number */
mimi3	10:b48d3ace55db	3900	if (res == FR_OK && vsn) {
mimi3	10:b48d3ace55db	3901	res = move_window(dj.fs, dj.fs->volbase);
mimi3	10:b48d3ace55db	3902	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3903	i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
mimi3	10:b48d3ace55db	3904	*vsn = LD_DWORD(&dj.fs->win[i]);
mimi3	10:b48d3ace55db	3905	}
mimi3	10:b48d3ace55db	3906	}
mimi3	10:b48d3ace55db	3907
mimi3	10:b48d3ace55db	3908	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	3909	}
mimi3	10:b48d3ace55db	3910
mimi3	10:b48d3ace55db	3911
mimi3	10:b48d3ace55db	3912
mimi3	10:b48d3ace55db	3913	#if !_FS_READONLY
mimi3	10:b48d3ace55db	3914	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3915	/* Set volume label */
mimi3	10:b48d3ace55db	3916	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	3917
mimi3	10:b48d3ace55db	3918	FRESULT f_setlabel (
mimi3	10:b48d3ace55db	3919	const TCHAR* label /* Pointer to the volume label to set */
mimi3	10:b48d3ace55db	3920	)
mimi3	10:b48d3ace55db	3921	{
mimi3	10:b48d3ace55db	3922	FRESULT res;
mimi3	10:b48d3ace55db	3923	FATFS_DIR dj;
mimi3	10:b48d3ace55db	3924	BYTE vn[11];
mimi3	10:b48d3ace55db	3925	UINT i, j, sl;
mimi3	10:b48d3ace55db	3926	WCHAR w;
mimi3	10:b48d3ace55db	3927	DWORD tm;
mimi3	10:b48d3ace55db	3928
mimi3	10:b48d3ace55db	3929
mimi3	10:b48d3ace55db	3930	/* Get logical drive number */
mimi3	10:b48d3ace55db	3931	res = find_volume(&dj.fs, &label, 1);
mimi3	10:b48d3ace55db	3932	if (res) LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	3933
mimi3	10:b48d3ace55db	3934	/* Create a volume label in directory form */
mimi3	10:b48d3ace55db	3935	vn[0] = 0;
mimi3	10:b48d3ace55db	3936	for (sl = 0; label[sl]; sl++) ; /* Get name length */
mimi3	10:b48d3ace55db	3937	for ( ; sl && label[sl - 1] == ' '; sl--) ; /* Remove trailing spaces */
mimi3	10:b48d3ace55db	3938	if (sl) { /* Create volume label in directory form */
mimi3	10:b48d3ace55db	3939	i = j = 0;
mimi3	10:b48d3ace55db	3940	do {
mimi3	10:b48d3ace55db	3941	#if _USE_LFN && _LFN_UNICODE
mimi3	10:b48d3ace55db	3942	w = ff_convert(ff_wtoupper(label[i++]), 0);
mimi3	10:b48d3ace55db	3943	#else
mimi3	10:b48d3ace55db	3944	w = (BYTE)label[i++];
mimi3	10:b48d3ace55db	3945	if (IsDBCS1(w))
mimi3	10:b48d3ace55db	3946	w = (j < 10 && i < sl && IsDBCS2(label[i])) ? w << 8 \| (BYTE)label[i++] : 0;
mimi3	10:b48d3ace55db	3947	#if _USE_LFN
mimi3	10:b48d3ace55db	3948	w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
mimi3	10:b48d3ace55db	3949	#else
mimi3	10:b48d3ace55db	3950	if (IsLower(w)) w -= 0x20; /* To upper ASCII characters */
mimi3	10:b48d3ace55db	3951	#ifdef _EXCVT
mimi3	10:b48d3ace55db	3952	if (w >= 0x80) w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
mimi3	10:b48d3ace55db	3953	#else
mimi3	10:b48d3ace55db	3954	if (!_DF1S && w >= 0x80) w = 0; /* Reject extended characters (ASCII cfg) */
mimi3	10:b48d3ace55db	3955	#endif
mimi3	10:b48d3ace55db	3956	#endif
mimi3	10:b48d3ace55db	3957	#endif
mimi3	10:b48d3ace55db	3958	if (!w \|\| chk_chr("\"+,.:;<=>\?[]\|\x7F", w) \|\| j >= (UINT)((w >= 0x100) ? 10 : 11)) / Reject invalid characters for volume label */
mimi3	10:b48d3ace55db	3959	LEAVE_FF(dj.fs, FR_INVALID_NAME);
mimi3	10:b48d3ace55db	3960	if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
mimi3	10:b48d3ace55db	3961	vn[j++] = (BYTE)w;
mimi3	10:b48d3ace55db	3962	} while (i < sl);
mimi3	10:b48d3ace55db	3963	while (j < 11) vn[j++] = ' '; /* Fill remaining name field */
mimi3	10:b48d3ace55db	3964	if (vn[0] == DDEM) LEAVE_FF(dj.fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
mimi3	10:b48d3ace55db	3965	}
mimi3	10:b48d3ace55db	3966
mimi3	10:b48d3ace55db	3967	/* Set volume label */
mimi3	10:b48d3ace55db	3968	dj.sclust = 0; /* Open root directory */
mimi3	10:b48d3ace55db	3969	res = dir_sdi(&dj, 0);
mimi3	10:b48d3ace55db	3970	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3971	res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
mimi3	10:b48d3ace55db	3972	if (res == FR_OK) { /* A volume label is found */
mimi3	10:b48d3ace55db	3973	if (vn[0]) {
mimi3	10:b48d3ace55db	3974	mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
mimi3	10:b48d3ace55db	3975	tm = GET_FATTIME();
mimi3	10:b48d3ace55db	3976	ST_DWORD(dj.dir + DIR_WrtTime, tm);
mimi3	10:b48d3ace55db	3977	} else {
mimi3	10:b48d3ace55db	3978	dj.dir[0] = DDEM; /* Remove the volume label */
mimi3	10:b48d3ace55db	3979	}
mimi3	10:b48d3ace55db	3980	dj.fs->wflag = 1;
mimi3	10:b48d3ace55db	3981	res = sync_fs(dj.fs);
mimi3	10:b48d3ace55db	3982	} else { /* No volume label is found or error */
mimi3	10:b48d3ace55db	3983	if (res == FR_NO_FILE) {
mimi3	10:b48d3ace55db	3984	res = FR_OK;
mimi3	10:b48d3ace55db	3985	if (vn[0]) { /* Create volume label as new */
mimi3	10:b48d3ace55db	3986	res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
mimi3	10:b48d3ace55db	3987	if (res == FR_OK) {
mimi3	10:b48d3ace55db	3988	mem_set(dj.dir, 0, SZ_DIRE); /* Set volume label */
mimi3	10:b48d3ace55db	3989	mem_cpy(dj.dir, vn, 11);
mimi3	10:b48d3ace55db	3990	dj.dir[DIR_Attr] = AM_VOL;
mimi3	10:b48d3ace55db	3991	tm = GET_FATTIME();
mimi3	10:b48d3ace55db	3992	ST_DWORD(dj.dir + DIR_WrtTime, tm);
mimi3	10:b48d3ace55db	3993	dj.fs->wflag = 1;
mimi3	10:b48d3ace55db	3994	res = sync_fs(dj.fs);
mimi3	10:b48d3ace55db	3995	}
mimi3	10:b48d3ace55db	3996	}
mimi3	10:b48d3ace55db	3997	}
mimi3	10:b48d3ace55db	3998	}
mimi3	10:b48d3ace55db	3999	}
mimi3	10:b48d3ace55db	4000
mimi3	10:b48d3ace55db	4001	LEAVE_FF(dj.fs, res);
mimi3	10:b48d3ace55db	4002	}
mimi3	10:b48d3ace55db	4003
mimi3	10:b48d3ace55db	4004	#endif /* !_FS_READONLY */
mimi3	10:b48d3ace55db	4005	#endif /* _USE_LABEL */
mimi3	10:b48d3ace55db	4006
mimi3	10:b48d3ace55db	4007
mimi3	10:b48d3ace55db	4008
mimi3	10:b48d3ace55db	4009	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4010	/* Forward data to the stream directly (available on only tiny cfg) */
mimi3	10:b48d3ace55db	4011	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4012	#if _USE_FORWARD && _FS_TINY
mimi3	10:b48d3ace55db	4013
mimi3	10:b48d3ace55db	4014	FRESULT f_forward (
mimi3	10:b48d3ace55db	4015	FIL* fp, /* Pointer to the file object */
mimi3	10:b48d3ace55db	4016	UINT (func)(const BYTE,UINT), /* Pointer to the streaming function */
mimi3	10:b48d3ace55db	4017	UINT btf, /* Number of bytes to forward */
mimi3	10:b48d3ace55db	4018	UINT* bf /* Pointer to number of bytes forwarded */
mimi3	10:b48d3ace55db	4019	)
mimi3	10:b48d3ace55db	4020	{
mimi3	10:b48d3ace55db	4021	FRESULT res;
mimi3	10:b48d3ace55db	4022	DWORD remain, clst, sect;
mimi3	10:b48d3ace55db	4023	UINT rcnt;
mimi3	10:b48d3ace55db	4024	BYTE csect;
mimi3	10:b48d3ace55db	4025
mimi3	10:b48d3ace55db	4026
mimi3	10:b48d3ace55db	4027	bf = 0; / Clear transfer byte counter */
mimi3	10:b48d3ace55db	4028
mimi3	10:b48d3ace55db	4029	res = validate(fp); /* Check validity of the object */
mimi3	10:b48d3ace55db	4030	if (res != FR_OK) LEAVE_FF(fp->fs, res);
mimi3	10:b48d3ace55db	4031	if (fp->err) /* Check error */
mimi3	10:b48d3ace55db	4032	LEAVE_FF(fp->fs, (FRESULT)fp->err);
mimi3	10:b48d3ace55db	4033	if (!(fp->flag & FA_READ)) /* Check access mode */
mimi3	10:b48d3ace55db	4034	LEAVE_FF(fp->fs, FR_DENIED);
mimi3	10:b48d3ace55db	4035
mimi3	10:b48d3ace55db	4036	remain = fp->fsize - fp->fptr;
mimi3	10:b48d3ace55db	4037	if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
mimi3	10:b48d3ace55db	4038
mimi3	10:b48d3ace55db	4039	for ( ; btf && (func)(0, 0); / Repeat until all data transferred or stream becomes busy */
mimi3	10:b48d3ace55db	4040	fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
mimi3	10:b48d3ace55db	4041	csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
mimi3	10:b48d3ace55db	4042	if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
mimi3	10:b48d3ace55db	4043	if (!csect) { /* On the cluster boundary? */
mimi3	10:b48d3ace55db	4044	clst = (fp->fptr == 0) ? /* On the top of the file? */
mimi3	10:b48d3ace55db	4045	fp->sclust : get_fat(fp->fs, fp->clust);
mimi3	10:b48d3ace55db	4046	if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	4047	if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	4048	fp->clust = clst; /* Update current cluster */
mimi3	10:b48d3ace55db	4049	}
mimi3	10:b48d3ace55db	4050	}
mimi3	10:b48d3ace55db	4051	sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
mimi3	10:b48d3ace55db	4052	if (!sect) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	4053	sect += csect;
mimi3	10:b48d3ace55db	4054	if (move_window(fp->fs, sect) != FR_OK) /* Move sector window */
mimi3	10:b48d3ace55db	4055	ABORT(fp->fs, FR_DISK_ERR);
mimi3	10:b48d3ace55db	4056	fp->dsect = sect;
mimi3	10:b48d3ace55db	4057	rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
mimi3	10:b48d3ace55db	4058	if (rcnt > btf) rcnt = btf;
mimi3	10:b48d3ace55db	4059	rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
mimi3	10:b48d3ace55db	4060	if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
mimi3	10:b48d3ace55db	4061	}
mimi3	10:b48d3ace55db	4062
mimi3	10:b48d3ace55db	4063	LEAVE_FF(fp->fs, FR_OK);
mimi3	10:b48d3ace55db	4064	}
mimi3	10:b48d3ace55db	4065	#endif /* _USE_FORWARD */
mimi3	10:b48d3ace55db	4066
mimi3	10:b48d3ace55db	4067
mimi3	10:b48d3ace55db	4068
mimi3	10:b48d3ace55db	4069	#if _USE_MKFS && !_FS_READONLY
mimi3	10:b48d3ace55db	4070	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4071	/* Create file system on the logical drive */
mimi3	10:b48d3ace55db	4072	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4073	#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
mimi3	10:b48d3ace55db	4074	#define N_FATS 1 /* Number of FATs (1 or 2) */
mimi3	10:b48d3ace55db	4075
mimi3	10:b48d3ace55db	4076
mimi3	10:b48d3ace55db	4077	FRESULT f_mkfs (
mimi3	10:b48d3ace55db	4078	const TCHAR* path, /* Logical drive number */
mimi3	10:b48d3ace55db	4079	BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
mimi3	10:b48d3ace55db	4080	UINT au /* Size of allocation unit in unit of byte or sector */
mimi3	10:b48d3ace55db	4081	)
mimi3	10:b48d3ace55db	4082	{
mimi3	10:b48d3ace55db	4083	static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
mimi3	10:b48d3ace55db	4084	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
mimi3	10:b48d3ace55db	4085	int vol;
mimi3	10:b48d3ace55db	4086	BYTE fmt, md, sys, *tbl, pdrv, part;
mimi3	10:b48d3ace55db	4087	DWORD n_clst, vs, n, wsect;
mimi3	10:b48d3ace55db	4088	UINT i;
mimi3	10:b48d3ace55db	4089	DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
mimi3	10:b48d3ace55db	4090	DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
mimi3	10:b48d3ace55db	4091	FATFS *fs;
mimi3	10:b48d3ace55db	4092	DSTATUS stat;
mimi3	10:b48d3ace55db	4093	#if _USE_TRIM
mimi3	10:b48d3ace55db	4094	DWORD eb[2];
mimi3	10:b48d3ace55db	4095	#endif
mimi3	10:b48d3ace55db	4096
mimi3	10:b48d3ace55db	4097
mimi3	10:b48d3ace55db	4098	/* Check mounted drive and clear work area */
mimi3	10:b48d3ace55db	4099	if (sfd > 1) return FR_INVALID_PARAMETER;
mimi3	10:b48d3ace55db	4100	vol = get_ldnumber(&path);
mimi3	10:b48d3ace55db	4101	if (vol < 0) return FR_INVALID_DRIVE;
mimi3	10:b48d3ace55db	4102	fs = FatFs[vol];
mimi3	10:b48d3ace55db	4103	if (!fs) return FR_NOT_ENABLED;
mimi3	10:b48d3ace55db	4104	fs->fs_type = 0;
mimi3	10:b48d3ace55db	4105	pdrv = LD2PD(vol); /* Physical drive */
mimi3	10:b48d3ace55db	4106	part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
mimi3	10:b48d3ace55db	4107
mimi3	10:b48d3ace55db	4108	/* Get disk statics */
mimi3	10:b48d3ace55db	4109	stat = disk_initialize(pdrv);
mimi3	10:b48d3ace55db	4110	if (stat & STA_NOINIT) return FR_NOT_READY;
mimi3	10:b48d3ace55db	4111	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mimi3	10:b48d3ace55db	4112	#if _MAX_SS != _MIN_SS /* Get disk sector size */
mimi3	10:b48d3ace55db	4113	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK \|\| SS(fs) > _MAX_SS \|\| SS(fs) < _MIN_SS)
mimi3	10:b48d3ace55db	4114	return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4115	#endif
mimi3	10:b48d3ace55db	4116	if (_MULTI_PARTITION && part) {
mimi3	10:b48d3ace55db	4117	/* Get partition information from partition table in the MBR */
mimi3	10:b48d3ace55db	4118	if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4119	if (LD_WORD(fs->win + BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
mimi3	10:b48d3ace55db	4120	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mimi3	10:b48d3ace55db	4121	if (!tbl[4]) return FR_MKFS_ABORTED; /* No partition? */
mimi3	10:b48d3ace55db	4122	b_vol = LD_DWORD(tbl + 8); /* Volume start sector */
mimi3	10:b48d3ace55db	4123	n_vol = LD_DWORD(tbl + 12); /* Volume size */
mimi3	10:b48d3ace55db	4124	} else {
mimi3	10:b48d3ace55db	4125	/* Create a partition in this function */
mimi3	10:b48d3ace55db	4126	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK \|\| n_vol < 128)
mimi3	10:b48d3ace55db	4127	return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4128	b_vol = (sfd) ? 0 : 63; /* Volume start sector */
mimi3	10:b48d3ace55db	4129	n_vol -= b_vol; /* Volume size */
mimi3	10:b48d3ace55db	4130	}
mimi3	10:b48d3ace55db	4131
mimi3	10:b48d3ace55db	4132	if (au & (au - 1)) au = 0;
mimi3	10:b48d3ace55db	4133	if (!au) { /* AU auto selection */
mimi3	10:b48d3ace55db	4134	vs = n_vol / (2000 / (SS(fs) / 512));
mimi3	10:b48d3ace55db	4135	for (i = 0; vs < vst[i]; i++) ;
mimi3	10:b48d3ace55db	4136	au = cst[i];
mimi3	10:b48d3ace55db	4137	}
mimi3	10:b48d3ace55db	4138	if (au >= _MIN_SS) au /= SS(fs); /* Number of sectors per cluster */
mimi3	10:b48d3ace55db	4139	if (!au) au = 1;
mimi3	10:b48d3ace55db	4140	if (au > 128) au = 128;
mimi3	10:b48d3ace55db	4141
mimi3	10:b48d3ace55db	4142	/* Pre-compute number of clusters and FAT sub-type */
mimi3	10:b48d3ace55db	4143	n_clst = n_vol / au;
mimi3	10:b48d3ace55db	4144	fmt = FS_FAT12;
mimi3	10:b48d3ace55db	4145	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
mimi3	10:b48d3ace55db	4146	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
mimi3	10:b48d3ace55db	4147
mimi3	10:b48d3ace55db	4148	/* Determine offset and size of FAT structure */
mimi3	10:b48d3ace55db	4149	if (fmt == FS_FAT32) {
mimi3	10:b48d3ace55db	4150	n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
mimi3	10:b48d3ace55db	4151	n_rsv = 32;
mimi3	10:b48d3ace55db	4152	n_dir = 0;
mimi3	10:b48d3ace55db	4153	} else {
mimi3	10:b48d3ace55db	4154	n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
mimi3	10:b48d3ace55db	4155	n_fat = (n_fat + SS(fs) - 1) / SS(fs);
mimi3	10:b48d3ace55db	4156	n_rsv = 1;
mimi3	10:b48d3ace55db	4157	n_dir = (DWORD)N_ROOTDIR * SZ_DIRE / SS(fs);
mimi3	10:b48d3ace55db	4158	}
mimi3	10:b48d3ace55db	4159	b_fat = b_vol + n_rsv; /* FAT area start sector */
mimi3	10:b48d3ace55db	4160	b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
mimi3	10:b48d3ace55db	4161	b_data = b_dir + n_dir; /* Data area start sector */
mimi3	10:b48d3ace55db	4162	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED; /* Too small volume */
mimi3	10:b48d3ace55db	4163
mimi3	10:b48d3ace55db	4164	/* Align data start sector to erase block boundary (for flash memory media) */
mimi3	10:b48d3ace55db	4165	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK \|\| !n \|\| n > 32768) n = 1;
mimi3	10:b48d3ace55db	4166	n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
mimi3	10:b48d3ace55db	4167	n = (n - b_data) / N_FATS;
mimi3	10:b48d3ace55db	4168	if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
mimi3	10:b48d3ace55db	4169	n_rsv += n;
mimi3	10:b48d3ace55db	4170	b_fat += n;
mimi3	10:b48d3ace55db	4171	} else { /* FAT12/16: Expand FAT size */
mimi3	10:b48d3ace55db	4172	n_fat += n;
mimi3	10:b48d3ace55db	4173	}
mimi3	10:b48d3ace55db	4174
mimi3	10:b48d3ace55db	4175	/* Determine number of clusters and final check of validity of the FAT sub-type */
mimi3	10:b48d3ace55db	4176	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
mimi3	10:b48d3ace55db	4177	if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
mimi3	10:b48d3ace55db	4178	\|\| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
mimi3	10:b48d3ace55db	4179	return FR_MKFS_ABORTED;
mimi3	10:b48d3ace55db	4180
mimi3	10:b48d3ace55db	4181	/* Determine system ID in the partition table */
mimi3	10:b48d3ace55db	4182	if (fmt == FS_FAT32) {
mimi3	10:b48d3ace55db	4183	sys = 0x0C; /* FAT32X */
mimi3	10:b48d3ace55db	4184	} else {
mimi3	10:b48d3ace55db	4185	if (fmt == FS_FAT12 && n_vol < 0x10000) {
mimi3	10:b48d3ace55db	4186	sys = 0x01; /* FAT12(<65536) */
mimi3	10:b48d3ace55db	4187	} else {
mimi3	10:b48d3ace55db	4188	sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
mimi3	10:b48d3ace55db	4189	}
mimi3	10:b48d3ace55db	4190	}
mimi3	10:b48d3ace55db	4191
mimi3	10:b48d3ace55db	4192	if (_MULTI_PARTITION && part) {
mimi3	10:b48d3ace55db	4193	/* Update system ID in the partition table */
mimi3	10:b48d3ace55db	4194	tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
mimi3	10:b48d3ace55db	4195	tbl[4] = sys;
mimi3	10:b48d3ace55db	4196	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to teh MBR */
mimi3	10:b48d3ace55db	4197	return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4198	md = 0xF8;
mimi3	10:b48d3ace55db	4199	} else {
mimi3	10:b48d3ace55db	4200	if (sfd) { /* No partition table (SFD) */
mimi3	10:b48d3ace55db	4201	md = 0xF0;
mimi3	10:b48d3ace55db	4202	} else { /* Create partition table (FDISK) */
mimi3	10:b48d3ace55db	4203	mem_set(fs->win, 0, SS(fs));
mimi3	10:b48d3ace55db	4204	tbl = fs->win + MBR_Table; /* Create partition table for single partition in the drive */
mimi3	10:b48d3ace55db	4205	tbl[1] = 1; /* Partition start head */
mimi3	10:b48d3ace55db	4206	tbl[2] = 1; /* Partition start sector */
mimi3	10:b48d3ace55db	4207	tbl[3] = 0; /* Partition start cylinder */
mimi3	10:b48d3ace55db	4208	tbl[4] = sys; /* System type */
mimi3	10:b48d3ace55db	4209	tbl[5] = 254; /* Partition end head */
mimi3	10:b48d3ace55db	4210	n = (b_vol + n_vol) / 63 / 255;
mimi3	10:b48d3ace55db	4211	tbl[6] = (BYTE)(n >> 2 \| 63); /* Partition end sector */
mimi3	10:b48d3ace55db	4212	tbl[7] = (BYTE)n; /* End cylinder */
mimi3	10:b48d3ace55db	4213	ST_DWORD(tbl + 8, 63); /* Partition start in LBA */
mimi3	10:b48d3ace55db	4214	ST_DWORD(tbl + 12, n_vol); /* Partition size in LBA */
mimi3	10:b48d3ace55db	4215	ST_WORD(fs->win + BS_55AA, 0xAA55); /* MBR signature */
mimi3	10:b48d3ace55db	4216	if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) /* Write it to the MBR */
mimi3	10:b48d3ace55db	4217	return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4218	md = 0xF8;
mimi3	10:b48d3ace55db	4219	}
mimi3	10:b48d3ace55db	4220	}
mimi3	10:b48d3ace55db	4221
mimi3	10:b48d3ace55db	4222	/* Create BPB in the VBR */
mimi3	10:b48d3ace55db	4223	tbl = fs->win; /* Clear sector */
mimi3	10:b48d3ace55db	4224	mem_set(tbl, 0, SS(fs));
mimi3	10:b48d3ace55db	4225	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
mimi3	10:b48d3ace55db	4226	i = SS(fs); /* Sector size */
mimi3	10:b48d3ace55db	4227	ST_WORD(tbl + BPB_BytsPerSec, i);
mimi3	10:b48d3ace55db	4228	tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
mimi3	10:b48d3ace55db	4229	ST_WORD(tbl + BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
mimi3	10:b48d3ace55db	4230	tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
mimi3	10:b48d3ace55db	4231	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
mimi3	10:b48d3ace55db	4232	ST_WORD(tbl + BPB_RootEntCnt, i);
mimi3	10:b48d3ace55db	4233	if (n_vol < 0x10000) { /* Number of total sectors */
mimi3	10:b48d3ace55db	4234	ST_WORD(tbl + BPB_TotSec16, n_vol);
mimi3	10:b48d3ace55db	4235	} else {
mimi3	10:b48d3ace55db	4236	ST_DWORD(tbl + BPB_TotSec32, n_vol);
mimi3	10:b48d3ace55db	4237	}
mimi3	10:b48d3ace55db	4238	tbl[BPB_Media] = md; /* Media descriptor */
mimi3	10:b48d3ace55db	4239	ST_WORD(tbl + BPB_SecPerTrk, 63); /* Number of sectors per track */
mimi3	10:b48d3ace55db	4240	ST_WORD(tbl + BPB_NumHeads, 255); /* Number of heads */
mimi3	10:b48d3ace55db	4241	ST_DWORD(tbl + BPB_HiddSec, b_vol); /* Hidden sectors */
mimi3	10:b48d3ace55db	4242	n = GET_FATTIME(); /* Use current time as VSN */
mimi3	10:b48d3ace55db	4243	if (fmt == FS_FAT32) {
mimi3	10:b48d3ace55db	4244	ST_DWORD(tbl + BS_VolID32, n); /* VSN */
mimi3	10:b48d3ace55db	4245	ST_DWORD(tbl + BPB_FATSz32, n_fat); /* Number of sectors per FAT */
mimi3	10:b48d3ace55db	4246	ST_DWORD(tbl + BPB_RootClus, 2); /* Root directory start cluster (2) */
mimi3	10:b48d3ace55db	4247	ST_WORD(tbl + BPB_FSInfo, 1); /* FSINFO record offset (VBR + 1) */
mimi3	10:b48d3ace55db	4248	ST_WORD(tbl + BPB_BkBootSec, 6); /* Backup boot record offset (VBR + 6) */
mimi3	10:b48d3ace55db	4249	tbl[BS_DrvNum32] = 0x80; /* Drive number */
mimi3	10:b48d3ace55db	4250	tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
mimi3	10:b48d3ace55db	4251	mem_cpy(tbl + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
mimi3	10:b48d3ace55db	4252	} else {
mimi3	10:b48d3ace55db	4253	ST_DWORD(tbl + BS_VolID, n); /* VSN */
mimi3	10:b48d3ace55db	4254	ST_WORD(tbl + BPB_FATSz16, n_fat); /* Number of sectors per FAT */
mimi3	10:b48d3ace55db	4255	tbl[BS_DrvNum] = 0x80; /* Drive number */
mimi3	10:b48d3ace55db	4256	tbl[BS_BootSig] = 0x29; /* Extended boot signature */
mimi3	10:b48d3ace55db	4257	mem_cpy(tbl + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
mimi3	10:b48d3ace55db	4258	}
mimi3	10:b48d3ace55db	4259	ST_WORD(tbl + BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
mimi3	10:b48d3ace55db	4260	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) /* Write it to the VBR sector */
mimi3	10:b48d3ace55db	4261	return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4262	if (fmt == FS_FAT32) /* Write it to the backup VBR if needed (VBR + 6) */
mimi3	10:b48d3ace55db	4263	disk_write(pdrv, tbl, b_vol + 6, 1);
mimi3	10:b48d3ace55db	4264
mimi3	10:b48d3ace55db	4265	/* Initialize FAT area */
mimi3	10:b48d3ace55db	4266	wsect = b_fat;
mimi3	10:b48d3ace55db	4267	for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
mimi3	10:b48d3ace55db	4268	mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
mimi3	10:b48d3ace55db	4269	n = md; /* Media descriptor byte */
mimi3	10:b48d3ace55db	4270	if (fmt != FS_FAT32) {
mimi3	10:b48d3ace55db	4271	n \|= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
mimi3	10:b48d3ace55db	4272	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT12/16) */
mimi3	10:b48d3ace55db	4273	} else {
mimi3	10:b48d3ace55db	4274	n \|= 0xFFFFFF00;
mimi3	10:b48d3ace55db	4275	ST_DWORD(tbl + 0, n); /* Reserve cluster #0-1 (FAT32) */
mimi3	10:b48d3ace55db	4276	ST_DWORD(tbl + 4, 0xFFFFFFFF);
mimi3	10:b48d3ace55db	4277	ST_DWORD(tbl + 8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
mimi3	10:b48d3ace55db	4278	}
mimi3	10:b48d3ace55db	4279	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mimi3	10:b48d3ace55db	4280	return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4281	mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
mimi3	10:b48d3ace55db	4282	for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
mimi3	10:b48d3ace55db	4283	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mimi3	10:b48d3ace55db	4284	return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4285	}
mimi3	10:b48d3ace55db	4286	}
mimi3	10:b48d3ace55db	4287
mimi3	10:b48d3ace55db	4288	/* Initialize root directory */
mimi3	10:b48d3ace55db	4289	i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
mimi3	10:b48d3ace55db	4290	do {
mimi3	10:b48d3ace55db	4291	if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
mimi3	10:b48d3ace55db	4292	return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4293	} while (--i);
mimi3	10:b48d3ace55db	4294
mimi3	10:b48d3ace55db	4295	#if _USE_TRIM /* Erase data area if needed */
mimi3	10:b48d3ace55db	4296	{
mimi3	10:b48d3ace55db	4297	eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
mimi3	10:b48d3ace55db	4298	disk_ioctl(pdrv, CTRL_TRIM, eb);
mimi3	10:b48d3ace55db	4299	}
mimi3	10:b48d3ace55db	4300	#endif
mimi3	10:b48d3ace55db	4301
mimi3	10:b48d3ace55db	4302	/* Create FSINFO if needed */
mimi3	10:b48d3ace55db	4303	if (fmt == FS_FAT32) {
mimi3	10:b48d3ace55db	4304	ST_DWORD(tbl + FSI_LeadSig, 0x41615252);
mimi3	10:b48d3ace55db	4305	ST_DWORD(tbl + FSI_StrucSig, 0x61417272);
mimi3	10:b48d3ace55db	4306	ST_DWORD(tbl + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
mimi3	10:b48d3ace55db	4307	ST_DWORD(tbl + FSI_Nxt_Free, 2); /* Last allocated cluster# */
mimi3	10:b48d3ace55db	4308	ST_WORD(tbl + BS_55AA, 0xAA55);
mimi3	10:b48d3ace55db	4309	disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR + 1) */
mimi3	10:b48d3ace55db	4310	disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR + 7) */
mimi3	10:b48d3ace55db	4311	}
mimi3	10:b48d3ace55db	4312
mimi3	10:b48d3ace55db	4313	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
mimi3	10:b48d3ace55db	4314	}
mimi3	10:b48d3ace55db	4315
mimi3	10:b48d3ace55db	4316
mimi3	10:b48d3ace55db	4317
mimi3	10:b48d3ace55db	4318	#if _MULTI_PARTITION
mimi3	10:b48d3ace55db	4319	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4320	/* Create partition table on the physical drive */
mimi3	10:b48d3ace55db	4321	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4322
mimi3	10:b48d3ace55db	4323	FRESULT f_fdisk (
mimi3	10:b48d3ace55db	4324	BYTE pdrv, /* Physical drive number */
mimi3	10:b48d3ace55db	4325	const DWORD szt[], /* Pointer to the size table for each partitions */
mimi3	10:b48d3ace55db	4326	void* work /* Pointer to the working buffer */
mimi3	10:b48d3ace55db	4327	)
mimi3	10:b48d3ace55db	4328	{
mimi3	10:b48d3ace55db	4329	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
mimi3	10:b48d3ace55db	4330	BYTE s_hd, e_hd, p, buf = (BYTE*)work;
mimi3	10:b48d3ace55db	4331	DSTATUS stat;
mimi3	10:b48d3ace55db	4332	DWORD sz_disk, sz_part, s_part;
mimi3	10:b48d3ace55db	4333
mimi3	10:b48d3ace55db	4334
mimi3	10:b48d3ace55db	4335	stat = disk_initialize(pdrv);
mimi3	10:b48d3ace55db	4336	if (stat & STA_NOINIT) return FR_NOT_READY;
mimi3	10:b48d3ace55db	4337	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
mimi3	10:b48d3ace55db	4338	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
mimi3	10:b48d3ace55db	4339
mimi3	10:b48d3ace55db	4340	/* Determine CHS in the table regardless of the drive geometry */
mimi3	10:b48d3ace55db	4341	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
mimi3	10:b48d3ace55db	4342	if (n == 256) n--;
mimi3	10:b48d3ace55db	4343	e_hd = n - 1;
mimi3	10:b48d3ace55db	4344	sz_cyl = 63 * n;
mimi3	10:b48d3ace55db	4345	tot_cyl = sz_disk / sz_cyl;
mimi3	10:b48d3ace55db	4346
mimi3	10:b48d3ace55db	4347	/* Create partition table */
mimi3	10:b48d3ace55db	4348	mem_set(buf, 0, _MAX_SS);
mimi3	10:b48d3ace55db	4349	p = buf + MBR_Table; b_cyl = 0;
mimi3	10:b48d3ace55db	4350	for (i = 0; i < 4; i++, p += SZ_PTE) {
mimi3	10:b48d3ace55db	4351	p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
mimi3	10:b48d3ace55db	4352	if (!p_cyl) continue;
mimi3	10:b48d3ace55db	4353	s_part = (DWORD)sz_cyl * b_cyl;
mimi3	10:b48d3ace55db	4354	sz_part = (DWORD)sz_cyl * p_cyl;
mimi3	10:b48d3ace55db	4355	if (i == 0) { /* Exclude first track of cylinder 0 */
mimi3	10:b48d3ace55db	4356	s_hd = 1;
mimi3	10:b48d3ace55db	4357	s_part += 63; sz_part -= 63;
mimi3	10:b48d3ace55db	4358	} else {
mimi3	10:b48d3ace55db	4359	s_hd = 0;
mimi3	10:b48d3ace55db	4360	}
mimi3	10:b48d3ace55db	4361	e_cyl = b_cyl + p_cyl - 1;
mimi3	10:b48d3ace55db	4362	if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
mimi3	10:b48d3ace55db	4363
mimi3	10:b48d3ace55db	4364	/* Set partition table */
mimi3	10:b48d3ace55db	4365	p[1] = s_hd; /* Start head */
mimi3	10:b48d3ace55db	4366	p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
mimi3	10:b48d3ace55db	4367	p[3] = (BYTE)b_cyl; /* Start cylinder */
mimi3	10:b48d3ace55db	4368	p[4] = 0x06; /* System type (temporary setting) */
mimi3	10:b48d3ace55db	4369	p[5] = e_hd; /* End head */
mimi3	10:b48d3ace55db	4370	p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
mimi3	10:b48d3ace55db	4371	p[7] = (BYTE)e_cyl; /* End cylinder */
mimi3	10:b48d3ace55db	4372	ST_DWORD(p + 8, s_part); /* Start sector in LBA */
mimi3	10:b48d3ace55db	4373	ST_DWORD(p + 12, sz_part); /* Partition size */
mimi3	10:b48d3ace55db	4374
mimi3	10:b48d3ace55db	4375	/* Next partition */
mimi3	10:b48d3ace55db	4376	b_cyl += p_cyl;
mimi3	10:b48d3ace55db	4377	}
mimi3	10:b48d3ace55db	4378	ST_WORD(p, 0xAA55);
mimi3	10:b48d3ace55db	4379
mimi3	10:b48d3ace55db	4380	/* Write it to the MBR */
mimi3	10:b48d3ace55db	4381	return (disk_write(pdrv, buf, 0, 1) != RES_OK \|\| disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) ? FR_DISK_ERR : FR_OK;
mimi3	10:b48d3ace55db	4382	}
mimi3	10:b48d3ace55db	4383
mimi3	10:b48d3ace55db	4384
mimi3	10:b48d3ace55db	4385	#endif /* _MULTI_PARTITION */
mimi3	10:b48d3ace55db	4386	#endif /* _USE_MKFS && !_FS_READONLY */
mimi3	10:b48d3ace55db	4387
mimi3	10:b48d3ace55db	4388
mimi3	10:b48d3ace55db	4389
mimi3	10:b48d3ace55db	4390
mimi3	10:b48d3ace55db	4391	#if _USE_STRFUNC
mimi3	10:b48d3ace55db	4392	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4393	/* Get a string from the file */
mimi3	10:b48d3ace55db	4394	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4395
mimi3	10:b48d3ace55db	4396	TCHAR* f_gets (
mimi3	10:b48d3ace55db	4397	TCHAR* buff, /* Pointer to the string buffer to read */
mimi3	10:b48d3ace55db	4398	int len, /* Size of string buffer (characters) */
mimi3	10:b48d3ace55db	4399	FIL* fp /* Pointer to the file object */
mimi3	10:b48d3ace55db	4400	)
mimi3	10:b48d3ace55db	4401	{
mimi3	10:b48d3ace55db	4402	int n = 0;
mimi3	10:b48d3ace55db	4403	TCHAR c, *p = buff;
mimi3	10:b48d3ace55db	4404	BYTE s[2];
mimi3	10:b48d3ace55db	4405	UINT rc;
mimi3	10:b48d3ace55db	4406
mimi3	10:b48d3ace55db	4407
mimi3	10:b48d3ace55db	4408	while (n < len - 1) { /* Read characters until buffer gets filled */
mimi3	10:b48d3ace55db	4409	#if _USE_LFN && _LFN_UNICODE
mimi3	10:b48d3ace55db	4410	#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
mimi3	10:b48d3ace55db	4411	f_read(fp, s, 1, &rc);
mimi3	10:b48d3ace55db	4412	if (rc != 1) break;
mimi3	10:b48d3ace55db	4413	c = s[0];
mimi3	10:b48d3ace55db	4414	if (c >= 0x80) {
mimi3	10:b48d3ace55db	4415	if (c < 0xC0) continue; /* Skip stray trailer */
mimi3	10:b48d3ace55db	4416	if (c < 0xE0) { /* Two-byte sequence */
mimi3	10:b48d3ace55db	4417	f_read(fp, s, 1, &rc);
mimi3	10:b48d3ace55db	4418	if (rc != 1) break;
mimi3	10:b48d3ace55db	4419	c = (c & 0x1F) << 6 \| (s[0] & 0x3F);
mimi3	10:b48d3ace55db	4420	if (c < 0x80) c = '?';
mimi3	10:b48d3ace55db	4421	} else {
mimi3	10:b48d3ace55db	4422	if (c < 0xF0) { /* Three-byte sequence */
mimi3	10:b48d3ace55db	4423	f_read(fp, s, 2, &rc);
mimi3	10:b48d3ace55db	4424	if (rc != 2) break;
mimi3	10:b48d3ace55db	4425	c = c << 12 \| (s[0] & 0x3F) << 6 \| (s[1] & 0x3F);
mimi3	10:b48d3ace55db	4426	if (c < 0x800) c = '?';
mimi3	10:b48d3ace55db	4427	} else { /* Reject four-byte sequence */
mimi3	10:b48d3ace55db	4428	c = '?';
mimi3	10:b48d3ace55db	4429	}
mimi3	10:b48d3ace55db	4430	}
mimi3	10:b48d3ace55db	4431	}
mimi3	10:b48d3ace55db	4432	#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
mimi3	10:b48d3ace55db	4433	f_read(fp, s, 2, &rc);
mimi3	10:b48d3ace55db	4434	if (rc != 2) break;
mimi3	10:b48d3ace55db	4435	c = s[1] + (s[0] << 8);
mimi3	10:b48d3ace55db	4436	#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
mimi3	10:b48d3ace55db	4437	f_read(fp, s, 2, &rc);
mimi3	10:b48d3ace55db	4438	if (rc != 2) break;
mimi3	10:b48d3ace55db	4439	c = s[0] + (s[1] << 8);
mimi3	10:b48d3ace55db	4440	#else /* Read a character in ANSI/OEM */
mimi3	10:b48d3ace55db	4441	f_read(fp, s, 1, &rc);
mimi3	10:b48d3ace55db	4442	if (rc != 1) break;
mimi3	10:b48d3ace55db	4443	c = s[0];
mimi3	10:b48d3ace55db	4444	if (IsDBCS1(c)) {
mimi3	10:b48d3ace55db	4445	f_read(fp, s, 1, &rc);
mimi3	10:b48d3ace55db	4446	if (rc != 1) break;
mimi3	10:b48d3ace55db	4447	c = (c << 8) + s[0];
mimi3	10:b48d3ace55db	4448	}
mimi3	10:b48d3ace55db	4449	c = ff_convert(c, 1); /* OEM -> Unicode */
mimi3	10:b48d3ace55db	4450	if (!c) c = '?';
mimi3	10:b48d3ace55db	4451	#endif
mimi3	10:b48d3ace55db	4452	#else /* Read a character without conversion */
mimi3	10:b48d3ace55db	4453	f_read(fp, s, 1, &rc);
mimi3	10:b48d3ace55db	4454	if (rc != 1) break;
mimi3	10:b48d3ace55db	4455	c = s[0];
mimi3	10:b48d3ace55db	4456	#endif
mimi3	10:b48d3ace55db	4457	if (_USE_STRFUNC == 2 && c == '\r') continue; /* Strip '\r' */
mimi3	10:b48d3ace55db	4458	*p++ = c;
mimi3	10:b48d3ace55db	4459	n++;
mimi3	10:b48d3ace55db	4460	if (c == '\n') break; /* Break on EOL */
mimi3	10:b48d3ace55db	4461	}
mimi3	10:b48d3ace55db	4462	*p = 0;
mimi3	10:b48d3ace55db	4463	return n ? buff : 0; /* When no data read (eof or error), return with error. */
mimi3	10:b48d3ace55db	4464	}
mimi3	10:b48d3ace55db	4465
mimi3	10:b48d3ace55db	4466
mimi3	10:b48d3ace55db	4467
mimi3	10:b48d3ace55db	4468
mimi3	10:b48d3ace55db	4469	#if !_FS_READONLY
mimi3	10:b48d3ace55db	4470	#include <stdarg.h>
mimi3	10:b48d3ace55db	4471	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4472	/* Put a character to the file */
mimi3	10:b48d3ace55db	4473	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4474
mimi3	10:b48d3ace55db	4475	typedef struct {
mimi3	10:b48d3ace55db	4476	FIL* fp;
mimi3	10:b48d3ace55db	4477	int idx, nchr;
mimi3	10:b48d3ace55db	4478	BYTE buf[64];
mimi3	10:b48d3ace55db	4479	} putbuff;
mimi3	10:b48d3ace55db	4480
mimi3	10:b48d3ace55db	4481
mimi3	10:b48d3ace55db	4482	static
mimi3	10:b48d3ace55db	4483	void putc_bfd (
mimi3	10:b48d3ace55db	4484	putbuff* pb,
mimi3	10:b48d3ace55db	4485	TCHAR c
mimi3	10:b48d3ace55db	4486	)
mimi3	10:b48d3ace55db	4487	{
mimi3	10:b48d3ace55db	4488	UINT bw;
mimi3	10:b48d3ace55db	4489	int i;
mimi3	10:b48d3ace55db	4490
mimi3	10:b48d3ace55db	4491
mimi3	10:b48d3ace55db	4492	if (_USE_STRFUNC == 2 && c == '\n') /* LF -> CRLF conversion */
mimi3	10:b48d3ace55db	4493	putc_bfd(pb, '\r');
mimi3	10:b48d3ace55db	4494
mimi3	10:b48d3ace55db	4495	i = pb->idx; /* Buffer write index (-1:error) */
mimi3	10:b48d3ace55db	4496	if (i < 0) return;
mimi3	10:b48d3ace55db	4497
mimi3	10:b48d3ace55db	4498	#if _USE_LFN && _LFN_UNICODE
mimi3	10:b48d3ace55db	4499	#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
mimi3	10:b48d3ace55db	4500	if (c < 0x80) { /* 7-bit */
mimi3	10:b48d3ace55db	4501	pb->buf[i++] = (BYTE)c;
mimi3	10:b48d3ace55db	4502	} else {
mimi3	10:b48d3ace55db	4503	if (c < 0x800) { /* 11-bit */
mimi3	10:b48d3ace55db	4504	pb->buf[i++] = (BYTE)(0xC0 \| c >> 6);
mimi3	10:b48d3ace55db	4505	} else { /* 16-bit */
mimi3	10:b48d3ace55db	4506	pb->buf[i++] = (BYTE)(0xE0 \| c >> 12);
mimi3	10:b48d3ace55db	4507	pb->buf[i++] = (BYTE)(0x80 \| (c >> 6 & 0x3F));
mimi3	10:b48d3ace55db	4508	}
mimi3	10:b48d3ace55db	4509	pb->buf[i++] = (BYTE)(0x80 \| (c & 0x3F));
mimi3	10:b48d3ace55db	4510	}
mimi3	10:b48d3ace55db	4511	#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
mimi3	10:b48d3ace55db	4512	pb->buf[i++] = (BYTE)(c >> 8);
mimi3	10:b48d3ace55db	4513	pb->buf[i++] = (BYTE)c;
mimi3	10:b48d3ace55db	4514	#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
mimi3	10:b48d3ace55db	4515	pb->buf[i++] = (BYTE)c;
mimi3	10:b48d3ace55db	4516	pb->buf[i++] = (BYTE)(c >> 8);
mimi3	10:b48d3ace55db	4517	#else /* Write a character in ANSI/OEM */
mimi3	10:b48d3ace55db	4518	c = ff_convert(c, 0); /* Unicode -> OEM */
mimi3	10:b48d3ace55db	4519	if (!c) c = '?';
mimi3	10:b48d3ace55db	4520	if (c >= 0x100)
mimi3	10:b48d3ace55db	4521	pb->buf[i++] = (BYTE)(c >> 8);
mimi3	10:b48d3ace55db	4522	pb->buf[i++] = (BYTE)c;
mimi3	10:b48d3ace55db	4523	#endif
mimi3	10:b48d3ace55db	4524	#else /* Write a character without conversion */
mimi3	10:b48d3ace55db	4525	pb->buf[i++] = (BYTE)c;
mimi3	10:b48d3ace55db	4526	#endif
mimi3	10:b48d3ace55db	4527
mimi3	10:b48d3ace55db	4528	if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
mimi3	10:b48d3ace55db	4529	f_write(pb->fp, pb->buf, (UINT)i, &bw);
mimi3	10:b48d3ace55db	4530	i = (bw == (UINT)i) ? 0 : -1;
mimi3	10:b48d3ace55db	4531	}
mimi3	10:b48d3ace55db	4532	pb->idx = i;
mimi3	10:b48d3ace55db	4533	pb->nchr++;
mimi3	10:b48d3ace55db	4534	}
mimi3	10:b48d3ace55db	4535
mimi3	10:b48d3ace55db	4536
mimi3	10:b48d3ace55db	4537
mimi3	10:b48d3ace55db	4538	int f_putc (
mimi3	10:b48d3ace55db	4539	TCHAR c, /* A character to be output */
mimi3	10:b48d3ace55db	4540	FIL* fp /* Pointer to the file object */
mimi3	10:b48d3ace55db	4541	)
mimi3	10:b48d3ace55db	4542	{
mimi3	10:b48d3ace55db	4543	putbuff pb;
mimi3	10:b48d3ace55db	4544	UINT nw;
mimi3	10:b48d3ace55db	4545
mimi3	10:b48d3ace55db	4546
mimi3	10:b48d3ace55db	4547	pb.fp = fp; /* Initialize output buffer */
mimi3	10:b48d3ace55db	4548	pb.nchr = pb.idx = 0;
mimi3	10:b48d3ace55db	4549
mimi3	10:b48d3ace55db	4550	putc_bfd(&pb, c); /* Put a character */
mimi3	10:b48d3ace55db	4551
mimi3	10:b48d3ace55db	4552	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mimi3	10:b48d3ace55db	4553	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mimi3	10:b48d3ace55db	4554	&& (UINT)pb.idx == nw) return pb.nchr;
mimi3	10:b48d3ace55db	4555	return EOF;
mimi3	10:b48d3ace55db	4556	}
mimi3	10:b48d3ace55db	4557
mimi3	10:b48d3ace55db	4558
mimi3	10:b48d3ace55db	4559
mimi3	10:b48d3ace55db	4560
mimi3	10:b48d3ace55db	4561	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4562	/* Put a string to the file */
mimi3	10:b48d3ace55db	4563	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4564
mimi3	10:b48d3ace55db	4565	int f_puts (
mimi3	10:b48d3ace55db	4566	const TCHAR* str, /* Pointer to the string to be output */
mimi3	10:b48d3ace55db	4567	FIL* fp /* Pointer to the file object */
mimi3	10:b48d3ace55db	4568	)
mimi3	10:b48d3ace55db	4569	{
mimi3	10:b48d3ace55db	4570	putbuff pb;
mimi3	10:b48d3ace55db	4571	UINT nw;
mimi3	10:b48d3ace55db	4572
mimi3	10:b48d3ace55db	4573
mimi3	10:b48d3ace55db	4574	pb.fp = fp; /* Initialize output buffer */
mimi3	10:b48d3ace55db	4575	pb.nchr = pb.idx = 0;
mimi3	10:b48d3ace55db	4576
mimi3	10:b48d3ace55db	4577	while (str) / Put the string */
mimi3	10:b48d3ace55db	4578	putc_bfd(&pb, *str++);
mimi3	10:b48d3ace55db	4579
mimi3	10:b48d3ace55db	4580	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mimi3	10:b48d3ace55db	4581	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mimi3	10:b48d3ace55db	4582	&& (UINT)pb.idx == nw) return pb.nchr;
mimi3	10:b48d3ace55db	4583	return EOF;
mimi3	10:b48d3ace55db	4584	}
mimi3	10:b48d3ace55db	4585
mimi3	10:b48d3ace55db	4586
mimi3	10:b48d3ace55db	4587
mimi3	10:b48d3ace55db	4588
mimi3	10:b48d3ace55db	4589	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4590	/* Put a formatted string to the file */
mimi3	10:b48d3ace55db	4591	/-----------------------------------------------------------------------/
mimi3	10:b48d3ace55db	4592
mimi3	10:b48d3ace55db	4593	int f_printf (
mimi3	10:b48d3ace55db	4594	FIL* fp, /* Pointer to the file object */
mimi3	10:b48d3ace55db	4595	const TCHAR* fmt, /* Pointer to the format string */
mimi3	10:b48d3ace55db	4596	... /* Optional arguments... */
mimi3	10:b48d3ace55db	4597	)
mimi3	10:b48d3ace55db	4598	{
mimi3	10:b48d3ace55db	4599	va_list arp;
mimi3	10:b48d3ace55db	4600	BYTE f, r;
mimi3	10:b48d3ace55db	4601	UINT nw, i, j, w;
mimi3	10:b48d3ace55db	4602	DWORD v;
mimi3	10:b48d3ace55db	4603	TCHAR c, d, s[16], *p;
mimi3	10:b48d3ace55db	4604	putbuff pb;
mimi3	10:b48d3ace55db	4605
mimi3	10:b48d3ace55db	4606
mimi3	10:b48d3ace55db	4607	pb.fp = fp; /* Initialize output buffer */
mimi3	10:b48d3ace55db	4608	pb.nchr = pb.idx = 0;
mimi3	10:b48d3ace55db	4609
mimi3	10:b48d3ace55db	4610	va_start(arp, fmt);
mimi3	10:b48d3ace55db	4611
mimi3	10:b48d3ace55db	4612	for (;;) {
mimi3	10:b48d3ace55db	4613	c = *fmt++;
mimi3	10:b48d3ace55db	4614	if (c == 0) break; /* End of string */
mimi3	10:b48d3ace55db	4615	if (c != '%') { /* Non escape character */
mimi3	10:b48d3ace55db	4616	putc_bfd(&pb, c);
mimi3	10:b48d3ace55db	4617	continue;
mimi3	10:b48d3ace55db	4618	}
mimi3	10:b48d3ace55db	4619	w = f = 0;
mimi3	10:b48d3ace55db	4620	c = *fmt++;
mimi3	10:b48d3ace55db	4621	if (c == '0') { /* Flag: '0' padding */
mimi3	10:b48d3ace55db	4622	f = 1; c = *fmt++;
mimi3	10:b48d3ace55db	4623	} else {
mimi3	10:b48d3ace55db	4624	if (c == '-') { /* Flag: left justified */
mimi3	10:b48d3ace55db	4625	f = 2; c = *fmt++;
mimi3	10:b48d3ace55db	4626	}
mimi3	10:b48d3ace55db	4627	}
mimi3	10:b48d3ace55db	4628	while (IsDigit(c)) { /* Precision */
mimi3	10:b48d3ace55db	4629	w = w * 10 + c - '0';
mimi3	10:b48d3ace55db	4630	c = *fmt++;
mimi3	10:b48d3ace55db	4631	}
mimi3	10:b48d3ace55db	4632	if (c == 'l' \|\| c == 'L') { /* Prefix: Size is long int */
mimi3	10:b48d3ace55db	4633	f \|= 4; c = *fmt++;
mimi3	10:b48d3ace55db	4634	}
mimi3	10:b48d3ace55db	4635	if (!c) break;
mimi3	10:b48d3ace55db	4636	d = c;
mimi3	10:b48d3ace55db	4637	if (IsLower(d)) d -= 0x20;
mimi3	10:b48d3ace55db	4638	switch (d) { /* Type is... */
mimi3	10:b48d3ace55db	4639	case 'S' : /* String */
mimi3	10:b48d3ace55db	4640	p = va_arg(arp, TCHAR*);
mimi3	10:b48d3ace55db	4641	for (j = 0; p[j]; j++) ;
mimi3	10:b48d3ace55db	4642	if (!(f & 2)) {
mimi3	10:b48d3ace55db	4643	while (j++ < w) putc_bfd(&pb, ' ');
mimi3	10:b48d3ace55db	4644	}
mimi3	10:b48d3ace55db	4645	while (p) putc_bfd(&pb, p++);
mimi3	10:b48d3ace55db	4646	while (j++ < w) putc_bfd(&pb, ' ');
mimi3	10:b48d3ace55db	4647	continue;
mimi3	10:b48d3ace55db	4648	case 'C' : /* Character */
mimi3	10:b48d3ace55db	4649	putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
mimi3	10:b48d3ace55db	4650	case 'B' : /* Binary */
mimi3	10:b48d3ace55db	4651	r = 2; break;
mimi3	10:b48d3ace55db	4652	case 'O' : /* Octal */
mimi3	10:b48d3ace55db	4653	r = 8; break;
mimi3	10:b48d3ace55db	4654	case 'D' : /* Signed decimal */
mimi3	10:b48d3ace55db	4655	case 'U' : /* Unsigned decimal */
mimi3	10:b48d3ace55db	4656	r = 10; break;
mimi3	10:b48d3ace55db	4657	case 'X' : /* Hexdecimal */
mimi3	10:b48d3ace55db	4658	r = 16; break;
mimi3	10:b48d3ace55db	4659	default: /* Unknown type (pass-through) */
mimi3	10:b48d3ace55db	4660	putc_bfd(&pb, c); continue;
mimi3	10:b48d3ace55db	4661	}
mimi3	10:b48d3ace55db	4662
mimi3	10:b48d3ace55db	4663	/* Get an argument and put it in numeral */
mimi3	10:b48d3ace55db	4664	v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));
mimi3	10:b48d3ace55db	4665	if (d == 'D' && (v & 0x80000000)) {
mimi3	10:b48d3ace55db	4666	v = 0 - v;
mimi3	10:b48d3ace55db	4667	f \|= 8;
mimi3	10:b48d3ace55db	4668	}
mimi3	10:b48d3ace55db	4669	i = 0;
mimi3	10:b48d3ace55db	4670	do {
mimi3	10:b48d3ace55db	4671	d = (TCHAR)(v % r); v /= r;
mimi3	10:b48d3ace55db	4672	if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
mimi3	10:b48d3ace55db	4673	s[i++] = d + '0';
mimi3	10:b48d3ace55db	4674	} while (v && i < sizeof s / sizeof s[0]);
mimi3	10:b48d3ace55db	4675	if (f & 8) s[i++] = '-';
mimi3	10:b48d3ace55db	4676	j = i; d = (f & 1) ? '0' : ' ';
mimi3	10:b48d3ace55db	4677	while (!(f & 2) && j++ < w) putc_bfd(&pb, d);
mimi3	10:b48d3ace55db	4678	do putc_bfd(&pb, s[--i]); while (i);
mimi3	10:b48d3ace55db	4679	while (j++ < w) putc_bfd(&pb, d);
mimi3	10:b48d3ace55db	4680	}
mimi3	10:b48d3ace55db	4681
mimi3	10:b48d3ace55db	4682	va_end(arp);
mimi3	10:b48d3ace55db	4683
mimi3	10:b48d3ace55db	4684	if ( pb.idx >= 0 /* Flush buffered characters to the file */
mimi3	10:b48d3ace55db	4685	&& f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
mimi3	10:b48d3ace55db	4686	&& (UINT)pb.idx == nw) return pb.nchr;
mimi3	10:b48d3ace55db	4687	return EOF;
mimi3	10:b48d3ace55db	4688	}
mimi3	10:b48d3ace55db	4689
mimi3	10:b48d3ace55db	4690	#endif /* !_FS_READONLY */
mimi3	10:b48d3ace55db	4691	#endif /* _USE_STRFUNC */

Repository toolbox

Export to desktop IDE

Repository details

Type:	Library
Created:	14 Feb 2016
Imports:	90
Forks:	1
Commits:	39
Dependents:	2
Dependencies:	0
Followers:	10
Issues:	1

The code in this repository is Apache licensed.