diff --git a/lib/fatfs/00readme.txt b/lib/fatfs/00readme.txt
new file mode 100644
index 0000000..f7330e9
--- /dev/null
+++ b/lib/fatfs/00readme.txt
@@ -0,0 +1,138 @@
+FatFs Module Source Files R0.09b                       (C)ChaN, 2013
+
+
+FILES
+
+  ffconf.h   Configuration file for FatFs module.
+  ff.h       Common include file for FatFs and application module.
+  ff.c       FatFs module.
+  diskio.h   Common include file for FatFs and disk I/O module.
+  diskio.c   An example of glue function to attach existing disk I/O module to FatFs.
+  integer.h  Integer type definitions for FatFs.
+  option     Optional external functions.
+
+  Low level disk I/O module is not included in this archive because the FatFs
+  module is only a generic file system layer and not depend on any specific
+  storage device. You have to provide a low level disk I/O module that written
+  to control your storage device.
+
+
+
+AGREEMENTS
+
+ FatFs module is an open source software to implement FAT file system to
+ small embedded systems. This is a free software and is opened for education,
+ research and commercial developments under license policy of following trems.
+
+  Copyright (C) 2012, ChaN, all right reserved.
+
+ * The FatFs module is a free software and there is NO WARRANTY.
+ * No restriction on use. You can use, modify and redistribute it for
+   personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
+ * Redistributions of source code must retain the above copyright notice.
+
+
+
+REVISION HISTORY
+
+  Feb 26, 2006  R0.00  Prototype
+
+  Apr 29, 2006  R0.01  First release.
+
+  Jun 01, 2006  R0.02  Added FAT12.
+                       Removed unbuffered mode.
+                       Fixed a problem on small (<32M) patition.
+
+  Jun 10, 2006  R0.02a Added a configuration option _FS_MINIMUM.
+
+  Sep 22, 2006  R0.03  Added f_rename.
+                       Changed option _FS_MINIMUM to _FS_MINIMIZE.
+
+  Dec 11, 2006  R0.03a Improved cluster scan algolithm to write files fast.
+                       Fixed f_mkdir creates incorrect directory on FAT32.
+
+  Feb 04, 2007  R0.04  Supported multiple drive system. (FatFs)
+                       Changed some APIs for multiple drive system.
+                       Added f_mkfs. (FatFs)
+                       Added _USE_FAT32 option. (Tiny-FatFs)
+
+  Apr 01, 2007  R0.04a Supported multiple partitions on a plysical drive. (FatFs)
+                       Fixed an endian sensitive code in f_mkfs. (FatFs)
+                       Added a capability of extending the file size to f_lseek.
+                       Added minimization level 3.
+                       Fixed a problem that can collapse a sector when recreate an
+                       existing file in any sub-directory at non FAT32 cfg. (Tiny-FatFs)
+
+  May 05, 2007  R0.04b Added _USE_NTFLAG option.
+                       Added FSInfo support.
+                       Fixed some problems corresponds to FAT32. (Tiny-FatFs)
+                       Fixed DBCS name can result FR_INVALID_NAME.
+                       Fixed short seek (0 < ofs <= csize) collapses the file object.
+
+  Aug 25, 2007  R0.05  Changed arguments of f_read, f_write.
+                       Changed arguments of f_mkfs. (FatFs)
+                       Fixed f_mkfs on FAT32 creates incorrect FSInfo. (FatFs)
+                       Fixed f_mkdir on FAT32 creates incorrect directory. (FatFs)
+
+  Feb 03, 2008  R0.05a Added f_truncate().
+                       Added f_utime().
+                       Fixed off by one error at FAT sub-type determination.
+                       Fixed btr in f_read() can be mistruncated.
+                       Fixed cached sector is not flushed when create and close without write.
+
+  Apr 01, 2008  R0.06  Added f_forward(). (Tiny-FatFs)
+                       Added string functions: fputc(), fputs(), fprintf() and fgets().
+                       Improved performance of f_lseek() on move to the same or following cluster.
+
+  Apr 01, 2009, R0.07  Merged Tiny-FatFs as a buffer configuration option.
+                       Added long file name support.
+                       Added multiple code page support.
+                       Added re-entrancy for multitask operation.
+                       Added auto cluster size selection to f_mkfs().
+                       Added rewind option to f_readdir().
+                       Changed result code of critical errors.
+                       Renamed string functions to avoid name collision.
+
+  Apr 14, 2009, R0.07a Separated out OS dependent code on reentrant cfg.
+                       Added multiple sector size support.
+
+  Jun 21, 2009, R0.07c Fixed f_unlink() may return FR_OK on error.
+                       Fixed wrong cache control in f_lseek().
+                       Added relative path feature.
+                       Added f_chdir().
+                       Added f_chdrive().
+                       Added proper case conversion for extended characters.
+
+  Nov 03, 2009 R0.07e  Separated out configuration options from ff.h to ffconf.h.
+                       Added a configuration option, _LFN_UNICODE.
+                       Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
+                       Fixed name matching error on the 13 char boundary.
+                       Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
+
+  May 15, 2010, R0.08  Added a memory configuration option. (_USE_LFN)
+                       Added file lock feature. (_FS_SHARE)
+                       Added fast seek feature. (_USE_FASTSEEK)
+                       Changed some types on the API, XCHAR->TCHAR.
+                       Changed fname member in the FILINFO structure on Unicode cfg.
+                       String functions support UTF-8 encoding files on Unicode cfg.
+
+  Aug 16,'10 R0.08a    Added f_getcwd(). (_FS_RPATH = 2)
+                       Added sector erase feature. (_USE_ERASE)
+                       Moved file lock semaphore table from fs object to the bss.
+                       Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
+                       Fixed f_mkfs() creates wrong FAT32 volume.
+
+  Jan 15,'11 R0.08b    Fast seek feature is also applied to f_read() and f_write().
+                       f_lseek() reports required table size on creating CLMP.
+                       Extended format syntax of f_printf function.
+                       Ignores duplicated directory separators in given path names.
+
+  Sep 06,'11 R0.09     f_mkfs() supports multiple partition to finish the multiple partition feature.
+                       Added f_fdisk(). (_MULTI_PARTITION = 2)
+
+  Aug 27,'12 R0.09a    Fixed assertion failure due to OS/2 EA on FAT12/16.
+                       Changed f_open() and f_opendir() reject null object pointer to avoid crash.
+                       Changed option name _FS_SHARE to _FS_LOCK.
+
+  Jan 23,'13 R0.09b    Added f_getlabel() and f_setlabel(). (_USE_LABEL == 1)
+
diff --git a/lib/fatfs/ccsbcs.c b/lib/fatfs/ccsbcs.c
new file mode 100644
index 0000000..07d6f09
--- /dev/null
+++ b/lib/fatfs/ccsbcs.c
@@ -0,0 +1,543 @@
+/*------------------------------------------------------------------------*/
+/* Unicode - Local code bidirectional converter  (C)ChaN, 2012            */
+/* (SBCS code pages)                                                      */
+/*------------------------------------------------------------------------*/
+/*  437   U.S. (OEM)
+/   720   Arabic (OEM)
+/   1256  Arabic (Windows)
+/   737   Greek (OEM)
+/   1253  Greek (Windows)
+/   1250  Central Europe (Windows)
+/   775   Baltic (OEM)
+/   1257  Baltic (Windows)
+/   850   Multilingual Latin 1 (OEM)
+/   852   Latin 2 (OEM)
+/   1252  Latin 1 (Windows)
+/   855   Cyrillic (OEM)
+/   1251  Cyrillic (Windows)
+/   866   Russian (OEM)
+/   857   Turkish (OEM)
+/   1254  Turkish (Windows)
+/   858   Multilingual Latin 1 + Euro (OEM)
+/   862   Hebrew (OEM)
+/   1255  Hebrew (Windows)
+/   874   Thai (OEM, Windows)
+/   1258  Vietnam (OEM, Windows)
+*/
+
+#include "ff.h"
+
+#if CFG_TUH_MSC
+
+#if _CODE_PAGE == 437
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP437(0x80-0xFF) to Unicode conversion table */
+	0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
+	0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
+	0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
+	0x00FF, 0x00D6, 0x00DC, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192,
+	0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
+	0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
+	0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
+	0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
+	0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4,
+	0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
+	0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248,
+	0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 720
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP720(0x80-0xFF) to Unicode conversion table */
+	0x0000, 0x0000, 0x00E9, 0x00E2, 0x0000, 0x00E0, 0x0000, 0x00E7,
+	0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0651, 0x0652, 0x00F4, 0x00A4, 0x0640, 0x00FB, 0x00F9,
+	0x0621, 0x0622, 0x0623, 0x0624, 0x00A3, 0x0625, 0x0626, 0x0627,
+	0x0628, 0x0629, 0x062A, 0x062B, 0x062C, 0x062D, 0x062E, 0x062F,
+	0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x00AB, 0x00BB,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
+	0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
+	0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
+	0x0636, 0x0637, 0x0638, 0x0639, 0x063A, 0x0641, 0x00B5, 0x0642,
+	0x0643, 0x0644, 0x0645, 0x0646, 0x0647, 0x0648, 0x0649, 0x064A,
+	0x2261, 0x064B, 0x064C, 0x064D, 0x064E, 0x064F, 0x0650, 0x2248,
+	0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 737
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP737(0x80-0xFF) to Unicode conversion table */
+	0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, 0x0398,
+	0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F, 0x03A0,
+	0x03A1, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9,
+	0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8,
+	0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0,
+	0x03C1, 0x03C3, 0x03C2, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 0x03C8,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
+	0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
+	0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
+	0x03C9, 0x03AC, 0x03AD, 0x03AE, 0x03CA, 0x03AF, 0x03CC, 0x03CD,
+	0x03CB, 0x03CE, 0x0386, 0x0388, 0x0389, 0x038A, 0x038C, 0x038E,
+	0x038F, 0x00B1, 0x2265, 0x2264, 0x03AA, 0x03AB, 0x00F7, 0x2248,
+	0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 775
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP775(0x80-0xFF) to Unicode conversion table */
+	0x0106, 0x00FC, 0x00E9, 0x0101, 0x00E4, 0x0123, 0x00E5, 0x0107,
+	0x0142, 0x0113, 0x0156, 0x0157, 0x012B, 0x0179, 0x00C4, 0x00C5,
+	0x00C9, 0x00E6, 0x00C6, 0x014D, 0x00F6, 0x0122, 0x00A2, 0x015A,
+	0x015B, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x00A4,
+	0x0100, 0x012A, 0x00F3, 0x017B, 0x017C, 0x017A, 0x201D, 0x00A6,
+	0x00A9, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x0141, 0x00AB, 0x00BB,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x0104, 0x010C, 0x0118,
+	0x0116, 0x2563, 0x2551, 0x2557, 0x255D, 0x012E, 0x0160, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0172, 0x016A,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x017D,
+	0x0105, 0x010D, 0x0119, 0x0117, 0x012F, 0x0161, 0x0173, 0x016B,
+	0x017E, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
+	0x00D3, 0x00DF, 0x014C, 0x0143, 0x00F5, 0x00D5, 0x00B5, 0x0144,
+	0x0136, 0x0137, 0x013B, 0x013C, 0x0146, 0x0112, 0x0145, 0x2019,
+	0x00AD, 0x00B1, 0x201C, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x201E,
+	0x00B0, 0x2219, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 850
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP850(0x80-0xFF) to Unicode conversion table */
+	0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
+	0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
+	0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
+	0x00FF, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x0192,
+	0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
+	0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0,
+	0x00A9, 0x2563, 0x2551, 0x2557, 0x255D, 0x00A2, 0x00A5, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
+	0x00F0, 0x00D0, 0x00CA, 0x00CB, 0x00C8, 0x0131, 0x00CD, 0x00CE,
+	0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00A6, 0x00CC, 0x2580,
+	0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x00FE,
+	0x00DE, 0x00DA, 0x00DB, 0x00D9, 0x00FD, 0x00DD, 0x00AF, 0x00B4,
+	0x00AD, 0x00B1, 0x2017, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8,
+	0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 852
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP852(0x80-0xFF) to Unicode conversion table */
+	0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x016F, 0x0107, 0x00E7,
+	0x0142, 0x00EB, 0x0150, 0x0151, 0x00EE, 0x0179, 0x00C4, 0x0106,
+	0x00C9, 0x0139, 0x013A, 0x00F4, 0x00F6, 0x013D, 0x013E, 0x015A,
+	0x015B, 0x00D6, 0x00DC, 0x0164, 0x0165, 0x0141, 0x00D7, 0x010D,
+	0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x0104, 0x0105, 0x017D, 0x017E,
+	0x0118, 0x0119, 0x00AC, 0x017A, 0x010C, 0x015F, 0x00AB, 0x00BB,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x011A,
+	0x015E, 0x2563, 0x2551, 0x2557, 0x255D, 0x017B, 0x017C, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0102, 0x0103,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
+	0x0111, 0x0110, 0x010E, 0x00CB, 0x010F, 0x0147, 0x00CD, 0x00CE,
+	0x011B, 0x2518, 0x250C, 0x2588, 0x2584, 0x0162, 0x016E, 0x2580,
+	0x00D3, 0x00DF, 0x00D4, 0x0143, 0x0144, 0x0148, 0x0160, 0x0161,
+	0x0154, 0x00DA, 0x0155, 0x0170, 0x00FD, 0x00DD, 0x0163, 0x00B4,
+	0x00AD, 0x02DD, 0x02DB, 0x02C7, 0x02D8, 0x00A7, 0x00F7, 0x00B8,
+	0x00B0, 0x00A8, 0x02D9, 0x0171, 0x0158, 0x0159, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 855
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP855(0x80-0xFF) to Unicode conversion table */
+	0x0452, 0x0402, 0x0453, 0x0403, 0x0451, 0x0401, 0x0454, 0x0404,
+	0x0455, 0x0405, 0x0456, 0x0406, 0x0457, 0x0407, 0x0458, 0x0408,
+	0x0459, 0x0409, 0x045A, 0x040A, 0x045B, 0x040B, 0x045C, 0x040C,
+	0x045E, 0x040E, 0x045F, 0x040F, 0x044E, 0x042E, 0x044A, 0x042A,
+	0x0430, 0x0410, 0x0431, 0x0411, 0x0446, 0x0426, 0x0434, 0x0414,
+	0x0435, 0x0415, 0x0444, 0x0424, 0x0433, 0x0413, 0x00AB, 0x00BB,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x0445, 0x0425, 0x0438,
+	0x0418, 0x2563, 0x2551, 0x2557, 0x255D, 0x0439, 0x0419, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x043A, 0x041A,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
+	0x043B, 0x041B, 0x043C, 0x041C, 0x043D, 0x041D, 0x043E, 0x041E,
+	0x043F, 0x2518, 0x250C, 0x2588, 0x2584, 0x041F, 0x044F, 0x2580,
+	0x042F, 0x0440, 0x0420, 0x0441, 0x0421, 0x0442, 0x0422, 0x0443,
+	0x0423, 0x0436, 0x0416, 0x0432, 0x0412, 0x044C, 0x042C, 0x2116,
+	0x00AD, 0x044B, 0x042B, 0x0437, 0x0417, 0x0448, 0x0428, 0x044D,
+	0x042D, 0x0449, 0x0429, 0x0447, 0x0427, 0x00A7, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 857
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP857(0x80-0xFF) to Unicode conversion table */
+	0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
+	0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x0131, 0x00C4, 0x00C5,
+	0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
+	0x0130, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x015E, 0x015F,
+	0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x011E, 0x011F,
+	0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0,
+	0x00A9, 0x2563, 0x2551, 0x2557, 0x255D, 0x00A2, 0x00A5, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
+	0x00BA, 0x00AA, 0x00CA, 0x00CB, 0x00C8, 0x0000, 0x00CD, 0x00CE,
+	0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00A6, 0x00CC, 0x2580,
+	0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x0000,
+	0x00D7, 0x00DA, 0x00DB, 0x00D9, 0x00EC, 0x00FF, 0x00AF, 0x00B4,
+	0x00AD, 0x00B1, 0x0000, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8,
+	0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 858
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP858(0x80-0xFF) to Unicode conversion table */
+	0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
+	0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
+	0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
+	0x00FF, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x0192,
+	0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
+	0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0,
+	0x00A9, 0x2563, 0x2551, 0x2557, 0x2550, 0x00A2, 0x00A5, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
+	0x00F0, 0x00D0, 0x00CA, 0x00CB, 0x00C8, 0x20AC, 0x00CD, 0x00CE,
+	0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00C6, 0x00CC, 0x2580,
+	0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x00FE,
+	0x00DE, 0x00DA, 0x00DB, 0x00D9, 0x00FD, 0x00DD, 0x00AF, 0x00B4,
+	0x00AD, 0x00B1, 0x2017, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8,
+	0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 862
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP862(0x80-0xFF) to Unicode conversion table */
+	0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7,
+	0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF,
+	0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7,
+	0x05E8, 0x05E9, 0x05EA, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192,
+	0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
+	0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
+	0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
+	0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
+	0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4,
+	0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
+	0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248,
+	0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 866
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP866(0x80-0xFF) to Unicode conversion table */
+	0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417,
+	0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F,
+	0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427,
+	0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F,
+	0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437,
+	0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F,
+	0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
+	0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
+	0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
+	0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
+	0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
+	0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447,
+	0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F,
+	0x0401, 0x0451, 0x0404, 0x0454, 0x0407, 0x0457, 0x040E, 0x045E,
+	0x00B0, 0x2219, 0x00B7, 0x221A, 0x2116, 0x00A4, 0x25A0, 0x00A0
+};
+
+#elif _CODE_PAGE == 874
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP874(0x80-0xFF) to Unicode conversion table */
+	0x20AC, 0x0000, 0x0000, 0x0000, 0x0000, 0x2026, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x00A0, 0x0E01, 0x0E02, 0x0E03, 0x0E04, 0x0E05, 0x0E06, 0x0E07,
+	0x0E08, 0x0E09, 0x0E0A, 0x0E0B, 0x0E0C, 0x0E0D, 0x0E0E, 0x0E0F,
+	0x0E10, 0x0E11, 0x0E12, 0x0E13, 0x0E14, 0x0E15, 0x0E16, 0x0E17,
+	0x0E18, 0x0E19, 0x0E1A, 0x0E1B, 0x0E1C, 0x0E1D, 0x0E1E, 0x0E1F,
+	0x0E20, 0x0E21, 0x0E22, 0x0E23, 0x0E24, 0x0E25, 0x0E26, 0x0E27,
+	0x0E28, 0x0E29, 0x0E2A, 0x0E2B, 0x0E2C, 0x0E2D, 0x0E2E, 0x0E2F,
+	0x0E30, 0x0E31, 0x0E32, 0x0E33, 0x0E34, 0x0E35, 0x0E36, 0x0E37,
+	0x0E38, 0x0E39, 0x0E3A, 0x0000, 0x0000, 0x0000, 0x0000, 0x0E3F,
+	0x0E40, 0x0E41, 0x0E42, 0x0E43, 0x0E44, 0x0E45, 0x0E46, 0x0E47,
+	0x0E48, 0x0E49, 0x0E4A, 0x0E4B, 0x0E4C, 0x0E4D, 0x0E4E, 0x0E4F,
+	0x0E50, 0x0E51, 0x0E52, 0x0E53, 0x0E54, 0x0E55, 0x0E56, 0x0E57,
+	0x0E58, 0x0E59, 0x0E5A, 0x0E5B, 0x0000, 0x0000, 0x0000, 0x0000
+};
+
+#elif _CODE_PAGE == 1250
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP1250(0x80-0xFF) to Unicode conversion table */
+	0x20AC, 0x0000, 0x201A, 0x0000, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x0000, 0x2030, 0x0160, 0x2039, 0x015A, 0x0164, 0x017D, 0x0179,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x2122, 0x0161, 0x203A, 0x015B, 0x0165, 0x017E, 0x017A,
+	0x00A0, 0x02C7, 0x02D8, 0x0141, 0x00A4, 0x0104, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x015E, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x017B,
+	0x00B0, 0x00B1, 0x02DB, 0x0142, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x0105, 0x015F, 0x00BB, 0x013D, 0x02DD, 0x013E, 0x017C,
+	0x0154, 0x00C1, 0x00C2, 0x0102, 0x00C4, 0x0139, 0x0106, 0x00C7,
+	0x010C, 0x00C9, 0x0118, 0x00CB, 0x011A, 0x00CD, 0x00CE, 0x010E,
+	0x0110, 0x0143, 0x0147, 0x00D3, 0x00D4, 0x0150, 0x00D6, 0x00D7,
+	0x0158, 0x016E, 0x00DA, 0x0170, 0x00DC, 0x00DD, 0x0162, 0x00DF,
+	0x0155, 0x00E1, 0x00E2, 0x0103, 0x00E4, 0x013A, 0x0107, 0x00E7,
+	0x010D, 0x00E9, 0x0119, 0x00EB, 0x011B, 0x00ED, 0x00EE, 0x010F,
+	0x0111, 0x0144, 0x0148, 0x00F3, 0x00F4, 0x0151, 0x00F6, 0x00F7,
+	0x0159, 0x016F, 0x00FA, 0x0171, 0x00FC, 0x00FD, 0x0163, 0x02D9
+};
+
+#elif _CODE_PAGE == 1251
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP1251(0x80-0xFF) to Unicode conversion table */
+	0x0402, 0x0403, 0x201A, 0x0453, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x20AC, 0x2030, 0x0409, 0x2039, 0x040A, 0x040C, 0x040B, 0x040F,
+	0x0452, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x2111, 0x0459, 0x203A, 0x045A, 0x045C, 0x045B, 0x045F,
+	0x00A0, 0x040E, 0x045E, 0x0408, 0x00A4, 0x0490, 0x00A6, 0x00A7,
+	0x0401, 0x00A9, 0x0404, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x0407,
+	0x00B0, 0x00B1, 0x0406, 0x0456, 0x0491, 0x00B5, 0x00B6, 0x00B7,
+	0x0451, 0x2116, 0x0454, 0x00BB, 0x0458, 0x0405, 0x0455, 0x0457,
+	0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417,
+	0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F,
+	0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427,
+	0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F,
+	0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437,
+	0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F,
+	0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447,
+	0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F
+};
+
+#elif _CODE_PAGE == 1252
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP1252(0x80-0xFF) to Unicode conversion table */
+	0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0x0000, 0x017D, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x02DC, 0x2122, 0x0161, 0x203A, 0x0153, 0x0000, 0x017E, 0x0178,
+	0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
+	0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
+	0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
+	0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
+	0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF,
+	0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
+	0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
+	0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7,
+	0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF
+};
+
+#elif _CODE_PAGE == 1253
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP1253(0x80-0xFF) to Unicode conversion table */
+	0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x0000, 0x2030, 0x0000, 0x2039, 0x000C, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x2122, 0x0000, 0x203A, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x00A0, 0x0385, 0x0386, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x0000, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x2015,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x0384, 0x00B5, 0x00B6, 0x00B7,
+	0x0388, 0x0389, 0x038A, 0x00BB, 0x038C, 0x00BD, 0x038E, 0x038F,
+	0x0390, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397,
+	0x0398, 0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F,
+	0x03A0, 0x03A1, 0x0000, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7,
+	0x03A8, 0x03A9, 0x03AA, 0x03AD, 0x03AC, 0x03AD, 0x03AE, 0x03AF,
+	0x03B0, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7,
+	0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF,
+	0x03C0, 0x03C1, 0x03C2, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7,
+	0x03C8, 0x03C9, 0x03CA, 0x03CB, 0x03CC, 0x03CD, 0x03CE, 0x0000
+};
+
+#elif _CODE_PAGE == 1254
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP1254(0x80-0xFF) to Unicode conversion table */
+	0x20AC, 0x0000, 0x210A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x02DC, 0x2122, 0x0161, 0x203A, 0x0153, 0x0000, 0x0000, 0x0178,
+	0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
+	0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
+	0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
+	0x011E, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
+	0x00D8, 0x00D9, 0x00DA, 0x00BD, 0x00DC, 0x0130, 0x015E, 0x00DF,
+	0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
+	0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
+	0x011F, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7,
+	0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x0131, 0x015F, 0x00FF
+};
+
+#elif _CODE_PAGE == 1255
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP1255(0x80-0xFF) to Unicode conversion table */
+	0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x02C6, 0x2030, 0x0000, 0x2039, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x02DC, 0x2122, 0x0000, 0x203A, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x00D7, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x00F7, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
+	0x05B0, 0x05B1, 0x05B2, 0x05B3, 0x05B4, 0x05B5, 0x05B6, 0x05B7,
+	0x05B8, 0x05B9, 0x0000, 0x05BB, 0x05BC, 0x05BD, 0x05BE, 0x05BF,
+	0x05C0, 0x05C1, 0x05C2, 0x05C3, 0x05F0, 0x05F1, 0x05F2, 0x05F3,
+	0x05F4, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7,
+	0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF,
+	0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7,
+	0x05E8, 0x05E9, 0x05EA, 0x0000, 0x0000, 0x200E, 0x200F, 0x0000
+};
+
+#elif _CODE_PAGE == 1256
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP1256(0x80-0xFF) to Unicode conversion table */
+	0x20AC, 0x067E, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x02C6, 0x2030, 0x0679, 0x2039, 0x0152, 0x0686, 0x0698, 0x0688,
+	0x06AF, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x06A9, 0x2122, 0x0691, 0x203A, 0x0153, 0x200C, 0x200D, 0x06BA,
+	0x00A0, 0x060C, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x06BE, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x061B, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x061F,
+	0x06C1, 0x0621, 0x0622, 0x0623, 0x0624, 0x0625, 0x0626, 0x0627,
+	0x0628, 0x0629, 0x062A, 0x062B, 0x062C, 0x062D, 0x062E, 0x062F,
+	0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x0636, 0x00D7,
+	0x0637, 0x0638, 0x0639, 0x063A, 0x0640, 0x0640, 0x0642, 0x0643,
+	0x00E0, 0x0644, 0x00E2, 0x0645, 0x0646, 0x0647, 0x0648, 0x00E7,
+	0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x0649, 0x064A, 0x00EE, 0x00EF,
+	0x064B, 0x064C, 0x064D, 0x064E, 0x00F4, 0x064F, 0x0650, 0x00F7,
+	0x0651, 0x00F9, 0x0652, 0x00FB, 0x00FC, 0x200E, 0x200F, 0x06D2
+}
+
+#elif _CODE_PAGE == 1257
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP1257(0x80-0xFF) to Unicode conversion table */
+	0x20AC, 0x0000, 0x201A, 0x0000, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x0000, 0x2030, 0x0000, 0x2039, 0x0000, 0x00A8, 0x02C7, 0x00B8,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x2122, 0x0000, 0x203A, 0x0000, 0x00AF, 0x02DB, 0x0000,
+	0x00A0, 0x0000, 0x00A2, 0x00A3, 0x00A4, 0x0000, 0x00A6, 0x00A7,
+	0x00D8, 0x00A9, 0x0156, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x0157, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00E6,
+	0x0104, 0x012E, 0x0100, 0x0106, 0x00C4, 0x00C5, 0x0118, 0x0112,
+	0x010C, 0x00C9, 0x0179, 0x0116, 0x0122, 0x0136, 0x012A, 0x013B,
+	0x0160, 0x0143, 0x0145, 0x00D3, 0x014C, 0x00D5, 0x00D6, 0x00D7,
+	0x0172, 0x0141, 0x015A, 0x016A, 0x00DC, 0x017B, 0x017D, 0x00DF,
+	0x0105, 0x012F, 0x0101, 0x0107, 0x00E4, 0x00E5, 0x0119, 0x0113,
+	0x010D, 0x00E9, 0x017A, 0x0117, 0x0123, 0x0137, 0x012B, 0x013C,
+	0x0161, 0x0144, 0x0146, 0x00F3, 0x014D, 0x00F5, 0x00F6, 0x00F7,
+	0x0173, 0x014E, 0x015B, 0x016B, 0x00FC, 0x017C, 0x017E, 0x02D9
+};
+
+#elif _CODE_PAGE == 1258
+#define _TBLDEF 1
+static
+const WCHAR Tbl[] = {	/*  CP1258(0x80-0xFF) to Unicode conversion table */
+	0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x02C6, 0x2030, 0x0000, 0x2039, 0x0152, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x02DC, 0x2122, 0x0000, 0x203A, 0x0153, 0x0000, 0x0000, 0x0178,
+	0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
+	0x00C0, 0x00C1, 0x00C2, 0x0102, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
+	0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x0300, 0x00CD, 0x00CE, 0x00CF,
+	0x0110, 0x00D1, 0x0309, 0x00D3, 0x00D4, 0x01A0, 0x00D6, 0x00D7,
+	0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x01AF, 0x0303, 0x00DF,
+	0x00E0, 0x00E1, 0x00E2, 0x0103, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
+	0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x0301, 0x00ED, 0x00EE, 0x00EF,
+	0x0111, 0x00F1, 0x0323, 0x00F3, 0x00F4, 0x01A1, 0x00F6, 0x00F7,
+	0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x01B0, 0x20AB, 0x00FF
+};
+
+#endif
+
+
+#if !_TBLDEF || !_USE_LFN
+#error This file is not needed in current configuration. Remove from the project.
+#endif
+
+
+WCHAR ff_convert (	/* Converted character, Returns zero on error */
+	WCHAR	chr,	/* Character code to be converted */
+	UINT	dir		/* 0: Unicode to OEMCP, 1: OEMCP to Unicode */
+)
+{
+	WCHAR c;
+
+
+	if (chr < 0x80) {	/* ASCII */
+		c = chr;
+
+	} else {
+		if (dir) {		/* OEMCP to Unicode */
+			c = (chr >= 0x100) ? 0 : Tbl[chr - 0x80];
+
+		} else {		/* Unicode to OEMCP */
+			for (c = 0; c < 0x80; c++) {
+				if (chr == Tbl[c]) break;
+			}
+			c = (c + 0x80) & 0xFF;
+		}
+	}
+
+	return c;
+}
+
+
+WCHAR ff_wtoupper (	/* Upper converted character */
+	WCHAR chr		/* Input character */
+)
+{
+	static const WCHAR tbl_lower[] = { 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0xA1, 0x00A2, 0x00A3, 0x00A5, 0x00AC, 0x00AF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0x0FF, 0x101, 0x103, 0x105, 0x107, 0x109, 0x10B, 0x10D, 0x10F, 0x111, 0x113, 0x115, 0x117, 0x119, 0x11B, 0x11D, 0x11F, 0x121, 0x123, 0x125, 0x127, 0x129, 0x12B, 0x12D, 0x12F, 0x131, 0x133, 0x135, 0x137, 0x13A, 0x13C, 0x13E, 0x140, 0x142, 0x144, 0x146, 0x148, 0x14B, 0x14D, 0x14F, 0x151, 0x153, 0x155, 0x157, 0x159, 0x15B, 0x15D, 0x15F, 0x161, 0x163, 0x165, 0x167, 0x169, 0x16B, 0x16D, 0x16F, 0x171, 0x173, 0x175, 0x177, 0x17A, 0x17C, 0x17E, 0x192, 0x3B1, 0x3B2, 0x3B3, 0x3B4, 0x3B5, 0x3B6, 0x3B7, 0x3B8, 0x3B9, 0x3BA, 0x3BB, 0x3BC, 0x3BD, 0x3BE, 0x3BF, 0x3C0, 0x3C1, 0x3C3, 0x3C4, 0x3C5, 0x3C6, 0x3C7, 0x3C8, 0x3C9, 0x3CA, 0x430, 0x431, 0x432, 0x433, 0x434, 0x435, 0x436, 0x437, 0x438, 0x439, 0x43A, 0x43B, 0x43C, 0x43D, 0x43E, 0x43F, 0x440, 0x441, 0x442, 0x443, 0x444, 0x445, 0x446, 0x447, 0x448, 0x449, 0x44A, 0x44B, 0x44C, 0x44D, 0x44E, 0x44F, 0x451, 0x452, 0x453, 0x454, 0x455, 0x456, 0x457, 0x458, 0x459, 0x45A, 0x45B, 0x45C, 0x45E, 0x45F, 0x2170, 0x2171, 0x2172, 0x2173, 0x2174, 0x2175, 0x2176, 0x2177, 0x2178, 0x2179, 0x217A, 0x217B, 0x217C, 0x217D, 0x217E, 0x217F, 0xFF41, 0xFF42, 0xFF43, 0xFF44, 0xFF45, 0xFF46, 0xFF47, 0xFF48, 0xFF49, 0xFF4A, 0xFF4B, 0xFF4C, 0xFF4D, 0xFF4E, 0xFF4F, 0xFF50, 0xFF51, 0xFF52, 0xFF53, 0xFF54, 0xFF55, 0xFF56, 0xFF57, 0xFF58, 0xFF59, 0xFF5A, 0 };
+	static const WCHAR tbl_upper[] = { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x21, 0xFFE0, 0xFFE1, 0xFFE5, 0xFFE2, 0xFFE3, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0x178, 0x100, 0x102, 0x104, 0x106, 0x108, 0x10A, 0x10C, 0x10E, 0x110, 0x112, 0x114, 0x116, 0x118, 0x11A, 0x11C, 0x11E, 0x120, 0x122, 0x124, 0x126, 0x128, 0x12A, 0x12C, 0x12E, 0x130, 0x132, 0x134, 0x136, 0x139, 0x13B, 0x13D, 0x13F, 0x141, 0x143, 0x145, 0x147, 0x14A, 0x14C, 0x14E, 0x150, 0x152, 0x154, 0x156, 0x158, 0x15A, 0x15C, 0x15E, 0x160, 0x162, 0x164, 0x166, 0x168, 0x16A, 0x16C, 0x16E, 0x170, 0x172, 0x174, 0x176, 0x179, 0x17B, 0x17D, 0x191, 0x391, 0x392, 0x393, 0x394, 0x395, 0x396, 0x397, 0x398, 0x399, 0x39A, 0x39B, 0x39C, 0x39D, 0x39E, 0x39F, 0x3A0, 0x3A1, 0x3A3, 0x3A4, 0x3A5, 0x3A6, 0x3A7, 0x3A8, 0x3A9, 0x3AA, 0x410, 0x411, 0x412, 0x413, 0x414, 0x415, 0x416, 0x417, 0x418, 0x419, 0x41A, 0x41B, 0x41C, 0x41D, 0x41E, 0x41F, 0x420, 0x421, 0x422, 0x423, 0x424, 0x425, 0x426, 0x427, 0x428, 0x429, 0x42A, 0x42B, 0x42C, 0x42D, 0x42E, 0x42F, 0x401, 0x402, 0x403, 0x404, 0x405, 0x406, 0x407, 0x408, 0x409, 0x40A, 0x40B, 0x40C, 0x40E, 0x40F, 0x2160, 0x2161, 0x2162, 0x2163, 0x2164, 0x2165, 0x2166, 0x2167, 0x2168, 0x2169, 0x216A, 0x216B, 0x216C, 0x216D, 0x216E, 0x216F, 0xFF21, 0xFF22, 0xFF23, 0xFF24, 0xFF25, 0xFF26, 0xFF27, 0xFF28, 0xFF29, 0xFF2A, 0xFF2B, 0xFF2C, 0xFF2D, 0xFF2E, 0xFF2F, 0xFF30, 0xFF31, 0xFF32, 0xFF33, 0xFF34, 0xFF35, 0xFF36, 0xFF37, 0xFF38, 0xFF39, 0xFF3A, 0 };
+	int i;
+
+
+	for (i = 0; tbl_lower[i] && chr != tbl_lower[i]; i++) ;
+
+	return tbl_lower[i] ? tbl_upper[i] : chr;
+}
+
+#endif // CFG_TUH_MSC
diff --git a/lib/fatfs/diskio.c b/lib/fatfs/diskio.c
new file mode 100644
index 0000000..a6132f2
--- /dev/null
+++ b/lib/fatfs/diskio.c
@@ -0,0 +1,193 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "tusb.h"
+
+#if CFG_TUH_MSC
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include "ffconf.h"
+#include "diskio.h"
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+// TODO change it to portable init
+static DSTATUS disk_state[CFG_TUH_DEVICE_MAX];
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// IMPLEMENTATION
+//--------------------------------------------------------------------+
+static DRESULT wait_for_io_complete(uint8_t usb_addr)
+{
+  // TODO with RTOS, this should use semaphore instead of blocking
+  while ( !tuh_msc_ready(usb_addr) )
+  {
+    // TODO should have timeout here
+    #if CFG_TUSB_OS != OPT_OS_NONE
+    osal_task_delay(10);
+    #endif
+  }
+
+  return RES_OK;
+}
+
+void diskio_init(void)
+{
+  memset(disk_state, STA_NOINIT, CFG_TUH_DEVICE_MAX);
+}
+
+//pdrv Specifies the physical drive number.
+DSTATUS disk_initialize ( BYTE pdrv )
+{
+  disk_state[pdrv] &= (~STA_NOINIT); // clear NOINIT bit
+  return disk_state[pdrv];
+}
+
+void disk_deinitialize ( BYTE pdrv )
+{
+  disk_state[pdrv] |= STA_NOINIT; // set NOINIT bit
+}
+
+DSTATUS disk_status (BYTE pdrv)
+{
+  return disk_state[pdrv];
+}
+
+//pdrv
+//    Specifies the physical drive number -->  == dev_addr-1
+//buff
+//    Pointer to the byte array to store the read data. The size of buffer must be in sector size * sector count.
+//sector
+//    Specifies the start sector number in logical block address (LBA).
+//count
+//    Specifies number of sectors to read. The value can be 1 to 128. Generally, a multiple sector transfer request
+//    must not be split into single sector transactions to the device, or you may not get good read performance.
+DRESULT disk_read (BYTE pdrv, BYTE*buff, DWORD sector, BYTE count)
+{
+  uint8_t usb_addr = pdrv+1;
+
+	if ( TUSB_ERROR_NONE != tuh_msc_read10(usb_addr, 0, buff, sector, count) )		return RES_ERROR;
+
+	return wait_for_io_complete(usb_addr);
+}
+
+
+DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, BYTE count)
+{
+  uint8_t usb_addr = pdrv+1;
+
+	if ( TUSB_ERROR_NONE != tuh_msc_write10(usb_addr, 0, buff, sector, count) )		return RES_ERROR;
+
+	return wait_for_io_complete(usb_addr);
+}
+
+/* [IN] Drive number */
+/* [IN] Control command code */
+/* [I/O] Parameter and data buffer */
+DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff)
+{
+  (void) buff; (void) pdrv; // compiler warnings
+
+  if (cmd != CTRL_SYNC) return RES_ERROR;
+  return RES_OK;
+}
+
+static inline uint8_t month2number(char* p_ch)
+{
+  char const * const month_str[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
+
+  for(uint8_t i=0; i<12; i++)
+  {
+    if ( strncmp(p_ch, month_str[i], 3) == 0 ) return i+1;
+  }
+
+  return 1;
+}
+
+static inline uint8_t c2i(char ch)
+{
+  return ch - '0';
+}
+
+DWORD get_fattime (void)
+{
+  union {
+    struct {
+      DWORD second       : 5;
+      DWORD minute       : 6;
+      DWORD hour         : 5;
+      DWORD day_in_month : 5;
+      DWORD month        : 4;
+      DWORD year         : 7;
+    };
+
+    DWORD value;
+  } timestamp;
+
+  //------------- Date is compiled date-------------//
+  char compile_date[] = __DATE__; // eg. "Sep 26 2013"
+  char* p_ch;
+
+  p_ch = strtok (compile_date, " ");
+  timestamp.month = month2number(p_ch);
+
+  p_ch = strtok (NULL, " ");
+  timestamp.day_in_month = 10*c2i(p_ch[0])+ c2i(p_ch[1]);
+
+  p_ch = strtok (NULL, " ");
+  timestamp.year = 1000*c2i(p_ch[0]) + 100*c2i(p_ch[1]) + 10*c2i(p_ch[2]) + c2i(p_ch[3]) - 1980;
+
+  //------------- Time each time this function call --> sec ++ -------------//
+  static uint8_t sec = 0;
+  static uint8_t min = 0;
+  static uint8_t hour = 0;
+
+  if (++sec >= 60)
+  {
+    sec = 0;
+    if (++min >= 60)
+    {
+      min = 0;
+      if (++hour >= 24)
+      {
+        hour = 0; // assume demo wont call this function more than 24*60*60 times
+      }
+    }
+  }
+
+  timestamp.hour   = hour;
+  timestamp.minute = min;
+  timestamp.second = sec;
+
+  return timestamp.value;
+}
+
+#endif // CFG_TUH_MSC
diff --git a/lib/fatfs/diskio.h b/lib/fatfs/diskio.h
new file mode 100644
index 0000000..f1f4bd3
--- /dev/null
+++ b/lib/fatfs/diskio.h
@@ -0,0 +1,95 @@
+/*-----------------------------------------------------------------------
+/  Low level disk interface modlue include file   (C)ChaN, 2013
+/-----------------------------------------------------------------------*/
+
+#ifndef _DISKIO_DEFINED
+#define _DISKIO_DEFINED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define _USE_WRITE	1	/* 1: Enable disk_write function */
+#define _USE_IOCTL	1	/* 1: Enable disk_ioctl fucntion */
+
+#include "integer.h"
+#include <stdbool.h>
+
+/* Status of Disk Functions */
+typedef BYTE	DSTATUS;
+
+/* Results of Disk Functions */
+typedef enum {
+	RES_OK = 0,		/* 0: Successful */
+	RES_ERROR,		/* 1: R/W Error */
+	RES_WRPRT,		/* 2: Write Protected */
+	RES_NOTRDY,		/* 3: Not Ready */
+	RES_PARERR		/* 4: Invalid Parameter */
+} DRESULT;
+
+
+/* Disk Status Bits (DSTATUS) */
+#define STA_NOINIT		0x01	/* Drive not initialized */
+#define STA_NODISK		0x02	/* No medium in the drive */
+#define STA_PROTECT		0x04	/* Write protected */
+
+
+/* Command code for disk_ioctrl fucntion */
+
+/* Generic command (used by FatFs) */
+#define CTRL_SYNC			0	/* Flush disk cache (for write functions) */
+#define GET_SECTOR_COUNT	1	/* Get media size (for only f_mkfs()) */
+#define GET_SECTOR_SIZE		2	/* Get sector size (for multiple sector size (_MAX_SS >= 1024)) */
+#define GET_BLOCK_SIZE		3	/* Get erase block size (for only f_mkfs()) */
+#define CTRL_ERASE_SECTOR	4	/* Force erased a block of sectors (for only _USE_ERASE) */
+
+/* Generic command (not used by FatFs) */
+#define CTRL_POWER			5	/* Get/Set power status */
+#define CTRL_LOCK			6	/* Lock/Unlock media removal */
+#define CTRL_EJECT			7	/* Eject media */
+#define CTRL_FORMAT			8	/* Create physical format on the media */
+
+/* MMC/SDC specific ioctl command */
+#define MMC_GET_TYPE		10	/* Get card type */
+#define MMC_GET_CSD			11	/* Get CSD */
+#define MMC_GET_CID			12	/* Get CID */
+#define MMC_GET_OCR			13	/* Get OCR */
+#define MMC_GET_SDSTAT		14	/* Get SD status */
+
+/* ATA/CF specific ioctl command */
+#define ATA_GET_REV			20	/* Get F/W revision */
+#define ATA_GET_MODEL		21	/* Get model name */
+#define ATA_GET_SN			22	/* Get serial number */
+
+
+/* MMC card type flags (MMC_GET_TYPE) */
+#define CT_MMC		0x01		/* MMC ver 3 */
+#define CT_SD1		0x02		/* SD ver 1 */
+#define CT_SD2		0x04		/* SD ver 2 */
+#define CT_SDC		(CT_SD1|CT_SD2)	/* SD */
+#define CT_BLOCK	0x08		/* Block addressing */
+
+/*---------------------------------------*/
+/* Prototypes for disk control functions */
+
+void diskio_init(void);
+void disk_deinitialize ( BYTE pdrv );
+DSTATUS disk_initialize (BYTE pdrv);
+DSTATUS disk_status (BYTE pdrv);
+DRESULT disk_read (BYTE pdrv, BYTE*buff, DWORD sector, BYTE count);
+DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, BYTE count);
+DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
+
+static inline bool disk_is_ready(BYTE pdrv);
+static inline bool disk_is_ready(BYTE pdrv)
+{
+  return (pdrv < CFG_TUH_DEVICE_MAX) &&
+         ( (disk_status(pdrv) & (STA_NOINIT | STA_NODISK)) == 0 );
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/fatfs/ff.c b/lib/fatfs/ff.c
new file mode 100644
index 0000000..79414af
--- /dev/null
+++ b/lib/fatfs/ff.c
@@ -0,0 +1,4330 @@
+/*----------------------------------------------------------------------------/
+/  FatFs - FAT file system module  R0.09b                 (C)ChaN, 2013
+/-----------------------------------------------------------------------------/
+/ FatFs module is a generic FAT file system module for small embedded systems.
+/ This is a free software that opened for education, research and commercial
+/ developments under license policy of following terms.
+/
+/  Copyright (C) 2013, ChaN, all right reserved.
+/
+/ * The FatFs module is a free software and there is NO WARRANTY.
+/ * No restriction on use. You can use, modify and redistribute it for
+/   personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
+/ * Redistributions of source code must retain the above copyright notice.
+/
+/-----------------------------------------------------------------------------/
+/ Feb 26,'06 R0.00  Prototype.
+/
+/ Apr 29,'06 R0.01  First stable version.
+/
+/ Jun 01,'06 R0.02  Added FAT12 support.
+/                   Removed unbuffered mode.
+/                   Fixed a problem on small (<32M) partition.
+/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
+/
+/ Sep 22,'06 R0.03  Added f_rename().
+/                   Changed option _FS_MINIMUM to _FS_MINIMIZE.
+/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
+/                   Fixed f_mkdir() creates incorrect directory on FAT32.
+/
+/ Feb 04,'07 R0.04  Supported multiple drive system.
+/                   Changed some interfaces for multiple drive system.
+/                   Changed f_mountdrv() to f_mount().
+/                   Added f_mkfs().
+/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
+/                   Added a capability of extending file size to f_lseek().
+/                   Added minimization level 3.
+/                   Fixed an endian sensitive code in f_mkfs().
+/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
+/                   Added FSInfo support.
+/                   Fixed DBCS name can result FR_INVALID_NAME.
+/                   Fixed short seek (<= csize) collapses the file object.
+/
+/ Aug 25,'07 R0.05  Changed arguments of f_read(), f_write() and f_mkfs().
+/                   Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
+/                   Fixed f_mkdir() on FAT32 creates incorrect directory.
+/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
+/                   Fixed off by one error at FAT sub-type determination.
+/                   Fixed btr in f_read() can be mistruncated.
+/                   Fixed cached sector is not flushed when create and close without write.
+/
+/ Apr 01,'08 R0.06  Added fputc(), fputs(), fprintf() and fgets().
+/                   Improved performance of f_lseek() on moving to the same or following cluster.
+/
+/ Apr 01,'09 R0.07  Merged Tiny-FatFs as a configuration option. (_FS_TINY)
+/                   Added long file name feature.
+/                   Added multiple code page feature.
+/                   Added re-entrancy for multitask operation.
+/                   Added auto cluster size selection to f_mkfs().
+/                   Added rewind option to f_readdir().
+/                   Changed result code of critical errors.
+/                   Renamed string functions to avoid name collision.
+/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
+/                   Added multiple sector size feature.
+/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
+/                   Fixed wrong cache control in f_lseek().
+/                   Added relative path feature.
+/                   Added f_chdir() and f_chdrive().
+/                   Added proper case conversion to extended char.
+/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
+/                   Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
+/                   Fixed name matching error on the 13 char boundary.
+/                   Added a configuration option, _LFN_UNICODE.
+/                   Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
+/
+/ May 15,'10 R0.08  Added a memory configuration option. (_USE_LFN = 3)
+/                   Added file lock feature. (_FS_SHARE)
+/                   Added fast seek feature. (_USE_FASTSEEK)
+/                   Changed some types on the API, XCHAR->TCHAR.
+/                   Changed fname member in the FILINFO structure on Unicode cfg.
+/                   String functions support UTF-8 encoding files on Unicode cfg.
+/ Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
+/                   Added sector erase feature. (_USE_ERASE)
+/                   Moved file lock semaphore table from fs object to the bss.
+/                   Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
+/                   Fixed f_mkfs() creates wrong FAT32 volume.
+/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
+/                   f_lseek() reports required table size on creating CLMP.
+/                   Extended format syntax of f_printf function.
+/                   Ignores duplicated directory separators in given path name.
+/
+/ Sep 06,'11 R0.09  f_mkfs() supports multiple partition to finish the multiple partition feature.
+/                   Added f_fdisk(). (_MULTI_PARTITION = 2)
+/ Aug 27,'12 R0.09a Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
+/                   Changed f_open() and f_opendir reject null object pointer to avoid crash.
+/                   Changed option name _FS_SHARE to _FS_LOCK.
+/ Jan 24,'13 R0.09b Added f_setlabel() and f_getlabel(). (_USE_LABEL = 1)
+/---------------------------------------------------------------------------*/
+
+#include "ff.h"			/* FatFs configurations and declarations */
+#include "diskio.h"		/* Declarations of low level disk I/O functions */
+
+#if CFG_TUH_MSC
+/*--------------------------------------------------------------------------
+
+   Module Private Definitions
+
+---------------------------------------------------------------------------*/
+
+#if _FATFS != 82786	/* Revision ID */
+#error Wrong include file (ff.h).
+#endif
+
+
+/* Definitions on sector size */
+#if _MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096
+#error Wrong sector size.
+#endif
+#if _MAX_SS != 512
+#define	SS(fs)	((fs)->ssize)	/* Variable sector size */
+#else
+#define	SS(fs)	512U			/* Fixed sector size */
+#endif
+
+
+/* Reentrancy related */
+#if _FS_REENTRANT
+#if _USE_LFN == 1
+#error Static LFN work area must not be used in re-entrant configuration.
+#endif
+#define	ENTER_FF(fs)		{ if (!lock_fs(fs)) return FR_TIMEOUT; }
+#define	LEAVE_FF(fs, res)	{ unlock_fs(fs, res); return res; }
+#else
+#define	ENTER_FF(fs)
+#define LEAVE_FF(fs, res)	return res
+#endif
+
+#define	ABORT(fs, res)		{ fp->flag |= FA__ERROR; LEAVE_FF(fs, res); }
+
+
+/* File access control feature */
+#if _FS_LOCK
+#if _FS_READONLY
+#error _FS_LOCK must be 0 on read-only cfg.
+#endif
+typedef struct {
+	FATFS *fs;				/* File ID 1, volume (NULL:blank entry) */
+	DWORD clu;				/* File ID 2, directory */
+	WORD idx;				/* File ID 3, directory index */
+	WORD ctr;				/* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:write mode */
+} FILESEM;
+#endif
+
+
+
+/* DBCS code ranges and SBCS extend char conversion table */
+
+#if _CODE_PAGE == 932	/* Japanese Shift-JIS */
+#define _DF1S	0x81	/* DBC 1st byte range 1 start */
+#define _DF1E	0x9F	/* DBC 1st byte range 1 end */
+#define _DF2S	0xE0	/* DBC 1st byte range 2 start */
+#define _DF2E	0xFC	/* DBC 1st byte range 2 end */
+#define _DS1S	0x40	/* DBC 2nd byte range 1 start */
+#define _DS1E	0x7E	/* DBC 2nd byte range 1 end */
+#define _DS2S	0x80	/* DBC 2nd byte range 2 start */
+#define _DS2E	0xFC	/* DBC 2nd byte range 2 end */
+
+#elif _CODE_PAGE == 936	/* Simplified Chinese GBK */
+#define _DF1S	0x81
+#define _DF1E	0xFE
+#define _DS1S	0x40
+#define _DS1E	0x7E
+#define _DS2S	0x80
+#define _DS2E	0xFE
+
+#elif _CODE_PAGE == 949	/* Korean */
+#define _DF1S	0x81
+#define _DF1E	0xFE
+#define _DS1S	0x41
+#define _DS1E	0x5A
+#define _DS2S	0x61
+#define _DS2E	0x7A
+#define _DS3S	0x81
+#define _DS3E	0xFE
+
+#elif _CODE_PAGE == 950	/* Traditional Chinese Big5 */
+#define _DF1S	0x81
+#define _DF1E	0xFE
+#define _DS1S	0x40
+#define _DS1E	0x7E
+#define _DS2S	0xA1
+#define _DS2E	0xFE
+
+#elif _CODE_PAGE == 437	/* U.S. (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F,0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+				0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 720	/* Arabic (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x45,0x41,0x84,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x49,0x49,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+				0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 737	/* Greek (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
+				0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xE7,0xE8,0xF1,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 775	/* Baltic (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
+				0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 850	/* Multilingual Latin 1 (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
+				0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 852	/* Latin 2 (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F,0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0x9F, \
+				0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
+
+#elif _CODE_PAGE == 855	/* Cyrillic (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F,0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
+				0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
+				0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 857	/* Turkish (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x98,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
+				0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0x59,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 858	/* Multilingual Latin 1 + Euro (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
+				0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 862	/* Hebrew (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+				0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 866	/* Russian (OEM) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+				0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 874	/* Thai (OEM, Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+				0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
+				0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xA3,0xB4,0xB5,0xB6,0xB7,0xB8,0xA5,0xAA,0xBB,0xBC,0xBD,0xBC,0xAF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
+
+#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x82,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x80,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
+				0xA0,0xA2,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB2,0xA5,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xA3,0xBD,0xBD,0xAF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF}
+
+#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0xAd,0x9B,0x8C,0x9D,0xAE,0x9F, \
+				0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
+
+#elif _CODE_PAGE == 1253 /* Greek (Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+				0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xA2,0xB8,0xB9,0xBA, \
+				0xE0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xFB,0xBC,0xFD,0xBF,0xFF}
+
+#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x9D,0x9E,0x9F, \
+				0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
+
+#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+				0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x8C,0x9D,0x9E,0x9F, \
+				0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0x41,0xE1,0x41,0xE3,0xE4,0xE5,0xE6,0x43,0x45,0x45,0x45,0x45,0xEC,0xED,0x49,0x49,0xF0,0xF1,0xF2,0xF3,0x4F,0xF5,0xF6,0xF7,0xF8,0x55,0xFA,0x55,0x55,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+				0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xBC,0xBD,0xBE,0xAF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
+
+#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
+#define _DF1S	0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0xAC,0x9D,0x9E,0x9F, \
+				0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+				0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xEC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xFE,0x9F}
+
+#elif _CODE_PAGE == 1	/* ASCII (for only non-LFN cfg) */
+#if _USE_LFN
+#error Cannot use LFN feature without valid code page.
+#endif
+#define _DF1S	0
+
+#else
+#error Unknown code page
+
+#endif
+
+
+/* Character code support macros */
+#define IsUpper(c)	(((c)>='A')&&((c)<='Z'))
+#define IsLower(c)	(((c)>='a')&&((c)<='z'))
+#define IsDigit(c)	(((c)>='0')&&((c)<='9'))
+
+#if _DF1S		/* Code page is DBCS */
+
+#ifdef _DF2S	/* Two 1st byte areas */
+#define IsDBCS1(c)	(((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
+#else			/* One 1st byte area */
+#define IsDBCS1(c)	((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
+#endif
+
+#ifdef _DS3S	/* Three 2nd byte areas */
+#define IsDBCS2(c)	(((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
+#else			/* Two 2nd byte areas */
+#define IsDBCS2(c)	(((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
+#endif
+
+#else			/* Code page is SBCS */
+
+#define IsDBCS1(c)	0
+#define IsDBCS2(c)	0
+
+#endif /* _DF1S */
+
+
+/* Name status flags */
+#define NS			11		/* Index of name status byte in fn[] */
+#define NS_LOSS		0x01	/* Out of 8.3 format */
+#define NS_LFN		0x02	/* Force to create LFN entry */
+#define NS_LAST		0x04	/* Last segment */
+#define NS_BODY		0x08	/* Lower case flag (body) */
+#define NS_EXT		0x10	/* Lower case flag (ext) */
+#define NS_DOT		0x20	/* Dot entry */
+
+
+/* FAT sub-type boundaries */
+/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */
+#define MIN_FAT16	4086	/* Minimum number of clusters for FAT16 */
+#define	MIN_FAT32	65526	/* Minimum number of clusters for FAT32 */
+
+
+/* FatFs refers the members in the FAT structures as byte array instead of
+/ structure member because the structure is not binary compatible between
+/ different platforms */
+
+#define BS_jmpBoot			0	/* Jump instruction (3) */
+#define BS_OEMName			3	/* OEM name (8) */
+#define BPB_BytsPerSec		11	/* Sector size [byte] (2) */
+#define BPB_SecPerClus		13	/* Cluster size [sector] (1) */
+#define BPB_RsvdSecCnt		14	/* Size of reserved area [sector] (2) */
+#define BPB_NumFATs			16	/* Number of FAT copies (1) */
+#define BPB_RootEntCnt		17	/* Number of root dir entries for FAT12/16 (2) */
+#define BPB_TotSec16		19	/* Volume size [sector] (2) */
+#define BPB_Media			21	/* Media descriptor (1) */
+#define BPB_FATSz16			22	/* FAT size [sector] (2) */
+#define BPB_SecPerTrk		24	/* Track size [sector] (2) */
+#define BPB_NumHeads		26	/* Number of heads (2) */
+#define BPB_HiddSec			28	/* Number of special hidden sectors (4) */
+#define BPB_TotSec32		32	/* Volume size [sector] (4) */
+#define BS_DrvNum			36	/* Physical drive number (2) */
+#define BS_BootSig			38	/* Extended boot signature (1) */
+#define BS_VolID			39	/* Volume serial number (4) */
+#define BS_VolLab			43	/* Volume label (8) */
+#define BS_FilSysType		54	/* File system type (1) */
+#define BPB_FATSz32			36	/* FAT size [sector] (4) */
+#define BPB_ExtFlags		40	/* Extended flags (2) */
+#define BPB_FSVer			42	/* File system version (2) */
+#define BPB_RootClus		44	/* Root dir first cluster (4) */
+#define BPB_FSInfo			48	/* Offset of FSInfo sector (2) */
+#define BPB_BkBootSec		50	/* Offset of backup boot sector (2) */
+#define BS_DrvNum32			64	/* Physical drive number (2) */
+#define BS_BootSig32		66	/* Extended boot signature (1) */
+#define BS_VolID32			67	/* Volume serial number (4) */
+#define BS_VolLab32			71	/* Volume label (8) */
+#define BS_FilSysType32		82	/* File system type (1) */
+#define	FSI_LeadSig			0	/* FSI: Leading signature (4) */
+#define	FSI_StrucSig		484	/* FSI: Structure signature (4) */
+#define	FSI_Free_Count		488	/* FSI: Number of free clusters (4) */
+#define	FSI_Nxt_Free		492	/* FSI: Last allocated cluster (4) */
+#define MBR_Table			446	/* MBR: Partition table offset (2) */
+#define	SZ_PTE				16	/* MBR: Size of a partition table entry */
+#define BS_55AA				510	/* Boot sector signature (2) */
+
+#define	DIR_Name			0	/* Short file name (11) */
+#define	DIR_Attr			11	/* Attribute (1) */
+#define	DIR_NTres			12	/* NT flag (1) */
+#define DIR_CrtTimeTenth	13	/* Created time sub-second (1) */
+#define	DIR_CrtTime			14	/* Created time (2) */
+#define	DIR_CrtDate			16	/* Created date (2) */
+#define DIR_LstAccDate		18	/* Last accessed date (2) */
+#define	DIR_FstClusHI		20	/* Higher 16-bit of first cluster (2) */
+#define	DIR_WrtTime			22	/* Modified time (2) */
+#define	DIR_WrtDate			24	/* Modified date (2) */
+#define	DIR_FstClusLO		26	/* Lower 16-bit of first cluster (2) */
+#define	DIR_FileSize		28	/* File size (4) */
+#define	LDIR_Ord			0	/* LFN entry order and LLE flag (1) */
+#define	LDIR_Attr			11	/* LFN attribute (1) */
+#define	LDIR_Type			12	/* LFN type (1) */
+#define	LDIR_Chksum			13	/* Sum of corresponding SFN entry */
+#define	LDIR_FstClusLO		26	/* Filled by zero (0) */
+#define	SZ_DIR				32		/* Size of a directory entry */
+#define	LLE					0x40	/* Last long entry flag in LDIR_Ord */
+#define	DDE					0xE5	/* Deleted directory entry mark in DIR_Name[0] */
+#define	NDDE				0x05	/* Replacement of the character collides with DDE */
+
+
+/*------------------------------------------------------------*/
+/* Module private work area                                   */
+/*------------------------------------------------------------*/
+/* Note that uninitialized variables with static duration are
+/  zeroed/nulled at start-up. If not, the compiler or start-up
+/  routine is out of ANSI-C standard.
+*/
+
+#if _VOLUMES
+static
+FATFS *FatFs[_VOLUMES];	/* Pointer to the file system objects (logical drives) */
+#else
+#error Number of volumes must not be 0.
+#endif
+
+static
+WORD Fsid;				/* File system mount ID */
+
+#if _FS_RPATH
+static
+BYTE CurrVol;			/* Current drive */
+#endif
+
+#if _FS_LOCK
+static
+FILESEM	Files[_FS_LOCK];	/* File lock semaphores */
+#endif
+
+#if _USE_LFN == 0			/* No LFN feature */
+#define	DEF_NAMEBUF			BYTE sfn[12]
+#define INIT_BUF(dobj)		(dobj).fn = sfn
+#define	FREE_BUF()
+
+#elif _USE_LFN == 1			/* LFN feature with static working buffer */
+static WCHAR LfnBuf[_MAX_LFN+1];
+#define	DEF_NAMEBUF			BYTE sfn[12]
+#define INIT_BUF(dobj)		{ (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
+#define	FREE_BUF()
+
+#elif _USE_LFN == 2 		/* LFN feature with dynamic working buffer on the stack */
+#define	DEF_NAMEBUF			BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
+#define INIT_BUF(dobj)		{ (dobj).fn = sfn; (dobj).lfn = lbuf; }
+#define	FREE_BUF()
+
+#elif _USE_LFN == 3 		/* LFN feature with dynamic working buffer on the heap */
+#define	DEF_NAMEBUF			BYTE sfn[12]; WCHAR *lfn
+#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; }
+#define	FREE_BUF()			ff_memfree(lfn)
+
+#else
+#error Wrong LFN configuration.
+#endif
+
+
+#ifdef _EXCVT
+static
+const BYTE ExCvt[] = _EXCVT;	/* Upper conversion table for extended chars */
+#endif
+
+
+
+
+
+
+/*--------------------------------------------------------------------------
+
+   Module Private Functions
+
+---------------------------------------------------------------------------*/
+
+
+/*-----------------------------------------------------------------------*/
+/* String functions                                                      */
+/*-----------------------------------------------------------------------*/
+
+/* Copy memory to memory */
+static
+void mem_cpy (void* dst, const void* src, UINT cnt) {
+	BYTE *d = (BYTE*)dst;
+	const BYTE *s = (const BYTE*)src;
+
+#if _WORD_ACCESS == 1
+	while (cnt >= sizeof (int)) {
+		*(int*)d = *(int*)s;
+		d += sizeof (int); s += sizeof (int);
+		cnt -= sizeof (int);
+	}
+#endif
+	while (cnt--)
+		*d++ = *s++;
+}
+
+/* Fill memory */
+static
+void mem_set (void* dst, int val, UINT cnt) {
+	BYTE *d = (BYTE*)dst;
+
+	while (cnt--)
+		*d++ = (BYTE)val;
+}
+
+/* Compare memory to memory */
+static
+int mem_cmp (const void* dst, const void* src, UINT cnt) {
+	const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src;
+	int r = 0;
+
+	while (cnt-- && (r = *d++ - *s++) == 0) ;
+	return r;
+}
+
+/* Check if chr is contained in the string */
+static
+int chk_chr (const char* str, int chr) {
+	while (*str && *str != chr) str++;
+	return *str;
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Request/Release grant to access the volume                            */
+/*-----------------------------------------------------------------------*/
+#if _FS_REENTRANT
+
+static
+int lock_fs (
+	FATFS *fs		/* File system object */
+)
+{
+	return ff_req_grant(fs->sobj);
+}
+
+
+static
+void unlock_fs (
+	FATFS *fs,		/* File system object */
+	FRESULT res		/* Result code to be returned */
+)
+{
+	if (fs &&
+		res != FR_NOT_ENABLED &&
+		res != FR_INVALID_DRIVE &&
+		res != FR_INVALID_OBJECT &&
+		res != FR_TIMEOUT) {
+		ff_rel_grant(fs->sobj);
+	}
+}
+#endif
+
+
+
+/*-----------------------------------------------------------------------*/
+/* File lock control functions                                           */
+/*-----------------------------------------------------------------------*/
+#if _FS_LOCK
+
+static
+FRESULT chk_lock (	/* Check if the file can be accessed */
+	DIR* dj,		/* Directory object pointing the file to be checked */
+	int acc			/* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
+)
+{
+	UINT i, be;
+
+	/* Search file semaphore table */
+	for (i = be = 0; i < _FS_LOCK; i++) {
+		if (Files[i].fs) {	/* Existing entry */
+			if (Files[i].fs == dj->fs &&	 	/* Check if the file matched with an open file */
+				Files[i].clu == dj->sclust &&
+				Files[i].idx == dj->index) break;
+		} else {			/* Blank entry */
+			be++;
+		}
+	}
+	if (i == _FS_LOCK)	/* The file is not opened */
+		return (be || acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES;	/* Is there a blank entry for new file? */
+
+	/* The file has been opened. Reject any open against writing file and all write mode open */
+	return (acc || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
+}
+
+
+static
+int enq_lock (void)	/* Check if an entry is available for a new file */
+{
+	UINT i;
+
+	for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
+	return (i == _FS_LOCK) ? 0 : 1;
+}
+
+
+static
+UINT inc_lock (	/* Increment file open counter and returns its index (0:int error) */
+	DIR* dj,	/* Directory object pointing the file to register or increment */
+	int acc		/* Desired access mode (0:Read, !0:Write) */
+)
+{
+	UINT i;
+
+
+	for (i = 0; i < _FS_LOCK; i++) {	/* Find the file */
+		if (Files[i].fs == dj->fs &&
+			Files[i].clu == dj->sclust &&
+			Files[i].idx == dj->index) break;
+	}
+
+	if (i == _FS_LOCK) {				/* Not opened. Register it as new. */
+		for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
+		if (i == _FS_LOCK) return 0;	/* No space to register (int err) */
+		Files[i].fs = dj->fs;
+		Files[i].clu = dj->sclust;
+		Files[i].idx = dj->index;
+		Files[i].ctr = 0;
+	}
+
+	if (acc && Files[i].ctr) return 0;	/* Access violation (int err) */
+
+	Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1;	/* Set semaphore value */
+
+	return i + 1;
+}
+
+
+static
+FRESULT dec_lock (	/* Decrement file open counter */
+	UINT i			/* Semaphore index */
+)
+{
+	WORD n;
+	FRESULT res;
+
+
+	if (--i < _FS_LOCK) {
+		n = Files[i].ctr;
+		if (n == 0x100) n = 0;
+		if (n) n--;
+		Files[i].ctr = n;
+		if (!n) Files[i].fs = 0;
+		res = FR_OK;
+	} else {
+		res = FR_INT_ERR;
+	}
+	return res;
+}
+
+
+static
+void clear_lock (	/* Clear lock entries of the volume */
+	FATFS *fs
+)
+{
+	UINT i;
+
+	for (i = 0; i < _FS_LOCK; i++) {
+		if (Files[i].fs == fs) Files[i].fs = 0;
+	}
+}
+#endif
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Move/Flush disk access window                                         */
+/*-----------------------------------------------------------------------*/
+
+
+#if !_FS_READONLY
+static
+FRESULT sync_window (
+	FATFS *fs		/* File system object */
+)
+{
+	DWORD wsect;
+	UINT nf;
+
+
+	if (fs->wflag) {	/* Write back the sector if it is dirty */
+		wsect = fs->winsect;	/* Current sector number */
+		if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK)
+			return FR_DISK_ERR;
+		fs->wflag = 0;
+		if (wsect >= fs->fatbase && wsect < (fs->fatbase + fs->fsize)) {	/* In FAT area? */
+			for (nf = fs->n_fats; nf >= 2; nf--) {	/* Reflect the change to all FAT copies */
+				wsect += fs->fsize;
+				disk_write(fs->drv, fs->win, wsect, 1);
+			}
+		}
+	}
+	return FR_OK;
+}
+#endif
+
+
+static
+FRESULT move_window (
+	FATFS *fs,		/* File system object */
+	DWORD sector	/* Sector number to make appearance in the fs->win[] */
+)
+{
+	if (sector != fs->winsect) {	/* Changed current window */
+#if !_FS_READONLY
+		if (sync_window(fs) != FR_OK)
+			return FR_DISK_ERR;
+#endif
+		if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK)
+			return FR_DISK_ERR;
+		fs->winsect = sector;
+	}
+
+	return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Synchronize file system and strage device                             */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT sync_fs (	/* FR_OK: successful, FR_DISK_ERR: failed */
+	FATFS *fs		/* File system object */
+)
+{
+	FRESULT res;
+
+
+	res = sync_window(fs);
+	if (res == FR_OK) {
+		/* Update FSInfo sector if needed */
+		if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
+			fs->winsect = 0;
+			/* Create FSInfo structure */
+			mem_set(fs->win, 0, 512);
+			ST_WORD(fs->win+BS_55AA, 0xAA55);
+			ST_DWORD(fs->win+FSI_LeadSig, 0x41615252);
+			ST_DWORD(fs->win+FSI_StrucSig, 0x61417272);
+			ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust);
+			ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust);
+			/* Write it into the FSInfo sector */
+			disk_write(fs->drv, fs->win, fs->fsi_sector, 1);
+			fs->fsi_flag = 0;
+		}
+		/* Make sure that no pending write process in the physical drive */
+		if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK)
+			res = FR_DISK_ERR;
+	}
+
+	return res;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get sector# from cluster#                                             */
+/*-----------------------------------------------------------------------*/
+
+
+DWORD clust2sect (	/* !=0: Sector number, 0: Failed - invalid cluster# */
+	FATFS *fs,		/* File system object */
+	DWORD clst		/* Cluster# to be converted */
+)
+{
+	clst -= 2;
+	if (clst >= (fs->n_fatent - 2)) return 0;		/* Invalid cluster# */
+	return clst * fs->csize + fs->database;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT access - Read value of a FAT entry                                */
+/*-----------------------------------------------------------------------*/
+
+
+DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
+	FATFS *fs,	/* File system object */
+	DWORD clst	/* Cluster# to get the link information */
+)
+{
+	UINT wc, bc;
+	BYTE *p;
+
+
+	if (clst < 2 || clst >= fs->n_fatent)	/* Check range */
+		return 1;
+
+	switch (fs->fs_type) {
+	case FS_FAT12 :
+		bc = (UINT)clst; bc += bc / 2;
+		if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
+		wc = fs->win[bc % SS(fs)]; bc++;
+		if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break;
+		wc |= fs->win[bc % SS(fs)] << 8;
+		return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
+
+	case FS_FAT16 :
+		if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break;
+		p = &fs->win[clst * 2 % SS(fs)];
+		return LD_WORD(p);
+
+	case FS_FAT32 :
+		if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break;
+		p = &fs->win[clst * 4 % SS(fs)];
+		return LD_DWORD(p) & 0x0FFFFFFF;
+	}
+
+	return 0xFFFFFFFF;	/* An error occurred at the disk I/O layer */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT access - Change value of a FAT entry                              */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+
+FRESULT put_fat (
+	FATFS *fs,	/* File system object */
+	DWORD clst,	/* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
+	DWORD val	/* New value to mark the cluster */
+)
+{
+	UINT bc;
+	BYTE *p;
+	FRESULT res;
+
+
+	if (clst < 2 || clst >= fs->n_fatent) {	/* Check range */
+		res = FR_INT_ERR;
+
+	} else {
+		switch (fs->fs_type) {
+		case FS_FAT12 :
+			bc = (UINT)clst; bc += bc / 2;
+			res = move_window(fs, fs->fatbase + (bc / SS(fs)));
+			if (res != FR_OK) break;
+			p = &fs->win[bc % SS(fs)];
+			*p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val;
+			bc++;
+			fs->wflag = 1;
+			res = move_window(fs, fs->fatbase + (bc / SS(fs)));
+			if (res != FR_OK) break;
+			p = &fs->win[bc % SS(fs)];
+			*p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F));
+			break;
+
+		case FS_FAT16 :
+			res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
+			if (res != FR_OK) break;
+			p = &fs->win[clst * 2 % SS(fs)];
+			ST_WORD(p, (WORD)val);
+			break;
+
+		case FS_FAT32 :
+			res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
+			if (res != FR_OK) break;
+			p = &fs->win[clst * 4 % SS(fs)];
+			val |= LD_DWORD(p) & 0xF0000000;
+			ST_DWORD(p, val);
+			break;
+
+		default :
+			res = FR_INT_ERR;
+		}
+		fs->wflag = 1;
+	}
+
+	return res;
+}
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT handling - Remove a cluster chain                                 */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT remove_chain (
+	FATFS *fs,			/* File system object */
+	DWORD clst			/* Cluster# to remove a chain from */
+)
+{
+	FRESULT res;
+	DWORD nxt;
+#if _USE_ERASE
+	DWORD scl = clst, ecl = clst, rt[2];
+#endif
+
+	if (clst < 2 || clst >= fs->n_fatent) {	/* Check range */
+		res = FR_INT_ERR;
+
+	} else {
+		res = FR_OK;
+		while (clst < fs->n_fatent) {			/* Not a last link? */
+			nxt = get_fat(fs, clst);			/* Get cluster status */
+			if (nxt == 0) break;				/* Empty cluster? */
+			if (nxt == 1) { res = FR_INT_ERR; break; }	/* Internal error? */
+			if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }	/* Disk error? */
+			res = put_fat(fs, clst, 0);			/* Mark the cluster "empty" */
+			if (res != FR_OK) break;
+			if (fs->free_clust != 0xFFFFFFFF) {	/* Update FSInfo */
+				fs->free_clust++;
+				fs->fsi_flag = 1;
+			}
+#if _USE_ERASE
+			if (ecl + 1 == nxt) {	/* Is next cluster contiguous? */
+				ecl = nxt;
+			} else {				/* End of contiguous clusters */
+				rt[0] = clust2sect(fs, scl);					/* Start sector */
+				rt[1] = clust2sect(fs, ecl) + fs->csize - 1;	/* End sector */
+				disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, rt);		/* Erase the block */
+				scl = ecl = nxt;
+			}
+#endif
+			clst = nxt;	/* Next cluster */
+		}
+	}
+
+	return res;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT handling - Stretch or Create a cluster chain                      */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+DWORD create_chain (	/* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
+	FATFS *fs,			/* File system object */
+	DWORD clst			/* Cluster# to stretch. 0 means create a new chain. */
+)
+{
+	DWORD cs, ncl, scl;
+	FRESULT res;
+
+
+	if (clst == 0) {		/* Create a new chain */
+		scl = fs->last_clust;			/* Get suggested start point */
+		if (!scl || scl >= fs->n_fatent) scl = 1;
+	}
+	else {					/* Stretch the current chain */
+		cs = get_fat(fs, clst);			/* Check the cluster status */
+		if (cs < 2) return 1;			/* It is an invalid cluster */
+		if (cs < fs->n_fatent) return cs;	/* It is already followed by next cluster */
+		scl = clst;
+	}
+
+	ncl = scl;				/* Start cluster */
+	for (;;) {
+		ncl++;							/* Next cluster */
+		if (ncl >= fs->n_fatent) {		/* Wrap around */
+			ncl = 2;
+			if (ncl > scl) return 0;	/* No free cluster */
+		}
+		cs = get_fat(fs, ncl);			/* Get the cluster status */
+		if (cs == 0) break;				/* Found a free cluster */
+		if (cs == 0xFFFFFFFF || cs == 1)/* An error occurred */
+			return cs;
+		if (ncl == scl) return 0;		/* No free cluster */
+	}
+
+	res = put_fat(fs, ncl, 0x0FFFFFFF);	/* Mark the new cluster "last link" */
+	if (res == FR_OK && clst != 0) {
+		res = put_fat(fs, clst, ncl);	/* Link it to the previous one if needed */
+	}
+	if (res == FR_OK) {
+		fs->last_clust = ncl;			/* Update FSINFO */
+		if (fs->free_clust != 0xFFFFFFFF) {
+			fs->free_clust--;
+			fs->fsi_flag = 1;
+		}
+	} else {
+		ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1;
+	}
+
+	return ncl;		/* Return new cluster number or error code */
+}
+#endif /* !_FS_READONLY */
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT handling - Convert offset into cluster with link map table        */
+/*-----------------------------------------------------------------------*/
+
+#if _USE_FASTSEEK
+static
+DWORD clmt_clust (	/* <2:Error, >=2:Cluster number */
+	FIL* fp,		/* Pointer to the file object */
+	DWORD ofs		/* File offset to be converted to cluster# */
+)
+{
+	DWORD cl, ncl, *tbl;
+
+
+	tbl = fp->cltbl + 1;	/* Top of CLMT */
+	cl = ofs / SS(fp->fs) / fp->fs->csize;	/* Cluster order from top of the file */
+	for (;;) {
+		ncl = *tbl++;			/* Number of cluters in the fragment */
+		if (!ncl) return 0;		/* End of table? (error) */
+		if (cl < ncl) break;	/* In this fragment? */
+		cl -= ncl; tbl++;		/* Next fragment */
+	}
+	return cl + *tbl;	/* Return the cluster number */
+}
+#endif	/* _USE_FASTSEEK */
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Set directory index                              */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT dir_sdi (
+	DIR *dj,		/* Pointer to directory object */
+	WORD idx		/* Index of directory table */
+)
+{
+	DWORD clst;
+	WORD ic;
+
+
+	dj->index = idx;
+	clst = dj->sclust;
+	if (clst == 1 || clst >= dj->fs->n_fatent)	/* Check start cluster range */
+		return FR_INT_ERR;
+	if (!clst && dj->fs->fs_type == FS_FAT32)	/* Replace cluster# 0 with root cluster# if in FAT32 */
+		clst = dj->fs->dirbase;
+
+	if (clst == 0) {	/* Static table (root-dir in FAT12/16) */
+		dj->clust = clst;
+		if (idx >= dj->fs->n_rootdir)		/* Index is out of range */
+			return FR_INT_ERR;
+		dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / SZ_DIR);	/* Sector# */
+	}
+	else {				/* Dynamic table (sub-dirs or root-dir in FAT32) */
+		ic = SS(dj->fs) / SZ_DIR * dj->fs->csize;	/* Entries per cluster */
+		while (idx >= ic) {	/* Follow cluster chain */
+			clst = get_fat(dj->fs, clst);				/* Get next cluster */
+			if (clst == 0xFFFFFFFF) return FR_DISK_ERR;	/* Disk error */
+			if (clst < 2 || clst >= dj->fs->n_fatent)	/* Reached to end of table or int error */
+				return FR_INT_ERR;
+			idx -= ic;
+		}
+		dj->clust = clst;
+		dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / SZ_DIR);	/* Sector# */
+	}
+
+	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;	/* Ptr to the entry in the sector */
+
+	return FR_OK;	/* Seek succeeded */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Move directory table index next                  */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT dir_next (	/* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
+	DIR *dj,		/* Pointer to the directory object */
+	int stretch		/* 0: Do not stretch table, 1: Stretch table if needed */
+)
+{
+	DWORD clst;
+	WORD i;
+
+
+	stretch = stretch;		/* To suppress warning on read-only cfg. */
+	i = dj->index + 1;
+	if (!i || !dj->sect)	/* Report EOT when index has reached 65535 */
+		return FR_NO_FILE;
+
+	if (!(i % (SS(dj->fs) / SZ_DIR))) {	/* Sector changed? */
+		dj->sect++;					/* Next sector */
+
+		if (dj->clust == 0) {	/* Static table */
+			if (i >= dj->fs->n_rootdir)	/* Report EOT when end of table */
+				return FR_NO_FILE;
+		}
+		else {					/* Dynamic table */
+			if (((i / (SS(dj->fs) / SZ_DIR)) & (dj->fs->csize - 1)) == 0) {	/* Cluster changed? */
+				clst = get_fat(dj->fs, dj->clust);				/* Get next cluster */
+				if (clst <= 1) return FR_INT_ERR;
+				if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
+				if (clst >= dj->fs->n_fatent) {					/* When it reached end of dynamic table */
+#if !_FS_READONLY
+					BYTE c;
+					if (!stretch) return FR_NO_FILE;			/* When do not stretch, report EOT */
+					clst = create_chain(dj->fs, dj->clust);		/* Stretch cluster chain */
+					if (clst == 0) return FR_DENIED;			/* No free cluster */
+					if (clst == 1) return FR_INT_ERR;
+					if (clst == 0xFFFFFFFF) return FR_DISK_ERR;
+					/* Clean-up stretched table */
+					if (sync_window(dj->fs)) return FR_DISK_ERR;	/* Flush active window */
+					mem_set(dj->fs->win, 0, SS(dj->fs));			/* Clear window buffer */
+					dj->fs->winsect = clust2sect(dj->fs, clst);	/* Cluster start sector */
+					for (c = 0; c < dj->fs->csize; c++) {		/* Fill the new cluster with 0 */
+						dj->fs->wflag = 1;
+						if (sync_window(dj->fs)) return FR_DISK_ERR;
+						dj->fs->winsect++;
+					}
+					dj->fs->winsect -= c;						/* Rewind window address */
+#else
+					return FR_NO_FILE;			/* Report EOT */
+#endif
+				}
+				dj->clust = clst;				/* Initialize data for new cluster */
+				dj->sect = clust2sect(dj->fs, clst);
+			}
+		}
+	}
+
+	dj->index = i;
+	dj->dir = dj->fs->win + (i % (SS(dj->fs) / SZ_DIR)) * SZ_DIR;
+
+	return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Reserve directory entry                          */
+/*-----------------------------------------------------------------------*/
+
+#if !_FS_READONLY
+static
+FRESULT dir_alloc (
+	DIR* dj,	/* Pointer to the directory object */
+	UINT nent	/* Number of contiguous entries to allocate (1-21) */
+)
+{
+	FRESULT res;
+	UINT n;
+
+
+	res = dir_sdi(dj, 0);
+	if (res == FR_OK) {
+		n = 0;
+		do {
+			res = move_window(dj->fs, dj->sect);
+			if (res != FR_OK) break;
+			if (dj->dir[0] == DDE || dj->dir[0] == 0) {	/* Is it a blank entry? */
+				if (++n == nent) break;	/* A block of contiguous entry is found */
+			} else {
+				n = 0;					/* Not a blank entry. Restart to search */
+			}
+			res = dir_next(dj, 1);		/* Next entry with table stretch enabled */
+		} while (res == FR_OK);
+	}
+	return res;
+}
+#endif
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Load/Store start cluster number                  */
+/*-----------------------------------------------------------------------*/
+
+static
+DWORD ld_clust (
+	FATFS *fs,	/* Pointer to the fs object */
+	BYTE *dir	/* Pointer to the directory entry */
+)
+{
+	DWORD cl;
+
+	cl = LD_WORD(dir+DIR_FstClusLO);
+	if (fs->fs_type == FS_FAT32)
+		cl |= (DWORD)LD_WORD(dir+DIR_FstClusHI) << 16;
+
+	return cl;
+}
+
+
+#if !_FS_READONLY
+static
+void st_clust (
+	BYTE *dir,	/* Pointer to the directory entry */
+	DWORD cl	/* Value to be set */
+)
+{
+	ST_WORD(dir+DIR_FstClusLO, cl);
+	ST_WORD(dir+DIR_FstClusHI, cl >> 16);
+}
+#endif
+
+
+
+/*-----------------------------------------------------------------------*/
+/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry   */
+/*-----------------------------------------------------------------------*/
+#if _USE_LFN
+static
+const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30};	/* Offset of LFN chars in the directory entry */
+
+
+static
+int cmp_lfn (			/* 1:Matched, 0:Not matched */
+	WCHAR *lfnbuf,		/* Pointer to the LFN to be compared */
+	BYTE *dir			/* Pointer to the directory entry containing a part of LFN */
+)
+{
+	UINT i, s;
+	WCHAR wc, uc;
+
+
+	i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13;	/* Get offset in the LFN buffer */
+	s = 0; wc = 1;
+	do {
+		uc = LD_WORD(dir+LfnOfs[s]);	/* Pick an LFN character from the entry */
+		if (wc) {	/* Last char has not been processed */
+			wc = ff_wtoupper(uc);		/* Convert it to upper case */
+			if (i >= _MAX_LFN || wc != ff_wtoupper(lfnbuf[i++]))	/* Compare it */
+				return 0;				/* Not matched */
+		} else {
+			if (uc != 0xFFFF) return 0;	/* Check filler */
+		}
+	} while (++s < 13);				/* Repeat until all chars in the entry are checked */
+
+	if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i])	/* Last segment matched but different length */
+		return 0;
+
+	return 1;						/* The part of LFN matched */
+}
+
+
+
+static
+int pick_lfn (			/* 1:Succeeded, 0:Buffer overflow */
+	WCHAR *lfnbuf,		/* Pointer to the Unicode-LFN buffer */
+	BYTE *dir			/* Pointer to the directory entry */
+)
+{
+	UINT i, s;
+	WCHAR wc, uc;
+
+
+	i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13;	/* Offset in the LFN buffer */
+
+	s = 0; wc = 1;
+	do {
+		uc = LD_WORD(dir+LfnOfs[s]);		/* Pick an LFN character from the entry */
+		if (wc) {	/* Last char has not been processed */
+			if (i >= _MAX_LFN) return 0;	/* Buffer overflow? */
+			lfnbuf[i++] = wc = uc;			/* Store it */
+		} else {
+			if (uc != 0xFFFF) return 0;		/* Check filler */
+		}
+	} while (++s < 13);						/* Read all character in the entry */
+
+	if (dir[LDIR_Ord] & LLE) {				/* Put terminator if it is the last LFN part */
+		if (i >= _MAX_LFN) return 0;		/* Buffer overflow? */
+		lfnbuf[i] = 0;
+	}
+
+	return 1;
+}
+
+
+#if !_FS_READONLY
+static
+void fit_lfn (
+	const WCHAR *lfnbuf,	/* Pointer to the LFN buffer */
+	BYTE *dir,				/* Pointer to the directory entry */
+	BYTE ord,				/* LFN order (1-20) */
+	BYTE sum				/* SFN sum */
+)
+{
+	UINT i, s;
+	WCHAR wc;
+
+
+	dir[LDIR_Chksum] = sum;			/* Set check sum */
+	dir[LDIR_Attr] = AM_LFN;		/* Set attribute. LFN entry */
+	dir[LDIR_Type] = 0;
+	ST_WORD(dir+LDIR_FstClusLO, 0);
+
+	i = (ord - 1) * 13;				/* Get offset in the LFN buffer */
+	s = wc = 0;
+	do {
+		if (wc != 0xFFFF) wc = lfnbuf[i++];	/* Get an effective char */
+		ST_WORD(dir+LfnOfs[s], wc);	/* Put it */
+		if (!wc) wc = 0xFFFF;		/* Padding chars following last char */
+	} while (++s < 13);
+	if (wc == 0xFFFF || !lfnbuf[i]) ord |= LLE;	/* Bottom LFN part is the start of LFN sequence */
+	dir[LDIR_Ord] = ord;			/* Set the LFN order */
+}
+
+#endif
+#endif
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Create numbered name                                                  */
+/*-----------------------------------------------------------------------*/
+#if _USE_LFN
+void gen_numname (
+	BYTE *dst,			/* Pointer to generated SFN */
+	const BYTE *src,	/* Pointer to source SFN to be modified */
+	const WCHAR *lfn,	/* Pointer to LFN */
+	WORD seq			/* Sequence number */
+)
+{
+	BYTE ns[8], c;
+	UINT i, j;
+
+
+	mem_cpy(dst, src, 11);
+
+	if (seq > 5) {	/* On many collisions, generate a hash number instead of sequential number */
+		do seq = (seq >> 1) + (seq << 15) + (WORD)*lfn++; while (*lfn);
+	}
+
+	/* itoa (hexdecimal) */
+	i = 7;
+	do {
+		c = (seq % 16) + '0';
+		if (c > '9') c += 7;
+		ns[i--] = c;
+		seq /= 16;
+	} while (seq);
+	ns[i] = '~';
+
+	/* Append the number */
+	for (j = 0; j < i && dst[j] != ' '; j++) {
+		if (IsDBCS1(dst[j])) {
+			if (j == i - 1) break;
+			j++;
+		}
+	}
+	do {
+		dst[j++] = (i < 8) ? ns[i++] : ' ';
+	} while (j < 8);
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Calculate sum of an SFN                                               */
+/*-----------------------------------------------------------------------*/
+#if _USE_LFN
+static
+BYTE sum_sfn (
+	const BYTE *dir		/* Ptr to directory entry */
+)
+{
+	BYTE sum = 0;
+	UINT n = 11;
+
+	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
+	return sum;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Find an object in the directory                  */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT dir_find (
+	DIR *dj			/* Pointer to the directory object linked to the file name */
+)
+{
+	FRESULT res;
+	BYTE c, *dir;
+#if _USE_LFN
+	BYTE a, ord, sum;
+#endif
+
+	res = dir_sdi(dj, 0);			/* Rewind directory object */
+	if (res != FR_OK) return res;
+
+#if _USE_LFN
+	ord = sum = 0xFF;
+#endif
+	do {
+		res = move_window(dj->fs, dj->sect);
+		if (res != FR_OK) break;
+		dir = dj->dir;					/* Ptr to the directory entry of current index */
+		c = dir[DIR_Name];
+		if (c == 0) { res = FR_NO_FILE; break; }	/* Reached to end of table */
+#if _USE_LFN	/* LFN configuration */
+		a = dir[DIR_Attr] & AM_MASK;
+		if (c == DDE || ((a & AM_VOL) && a != AM_LFN)) {	/* An entry without valid data */
+			ord = 0xFF;
+		} else {
+			if (a == AM_LFN) {			/* An LFN entry is found */
+				if (dj->lfn) {
+					if (c & LLE) {		/* Is it start of LFN sequence? */
+						sum = dir[LDIR_Chksum];
+						c &= ~LLE; ord = c;	/* LFN start order */
+						dj->lfn_idx = dj->index;
+					}
+					/* Check validity of the LFN entry and compare it with given name */
+					ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
+				}
+			} else {					/* An SFN entry is found */
+				if (!ord && sum == sum_sfn(dir)) break;	/* LFN matched? */
+				ord = 0xFF; dj->lfn_idx = 0xFFFF;	/* Reset LFN sequence */
+				if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break;	/* SFN matched? */
+			}
+		}
+#else		/* Non LFN configuration */
+		if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
+			break;
+#endif
+		res = dir_next(dj, 0);		/* Next entry */
+	} while (res == FR_OK);
+
+	return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read an object from the directory                                     */
+/*-----------------------------------------------------------------------*/
+#if _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2
+static
+FRESULT dir_read (
+	DIR *dj,		/* Pointer to the directory object */
+	int vol			/* Filtered by 0:file/dir or 1:volume label */
+)
+{
+	FRESULT res;
+	BYTE a, c, *dir;
+#if _USE_LFN
+	BYTE ord = 0xFF, sum = 0xFF;
+#endif
+
+	res = FR_NO_FILE;
+	while (dj->sect) {
+		res = move_window(dj->fs, dj->sect);
+		if (res != FR_OK) break;
+		dir = dj->dir;					/* Ptr to the directory entry of current index */
+		c = dir[DIR_Name];
+		if (c == 0) { res = FR_NO_FILE; break; }	/* Reached to end of table */
+		a = dir[DIR_Attr] & AM_MASK;
+#if _USE_LFN	/* LFN configuration */
+		if (c == DDE || (!_FS_RPATH && c == '.') || (a == AM_VOL) != vol) {	/* An entry without valid data */
+			ord = 0xFF;
+		} else {
+			if (a == AM_LFN) {			/* An LFN entry is found */
+				if (c & LLE) {			/* Is it start of LFN sequence? */
+					sum = dir[LDIR_Chksum];
+					c &= ~LLE; ord = c;
+					dj->lfn_idx = dj->index;
+				}
+				/* Check LFN validity and capture it */
+				ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF;
+			} else {					/* An SFN entry is found */
+				if (ord || sum != sum_sfn(dir))	/* Is there a valid LFN? */
+					dj->lfn_idx = 0xFFFF;		/* It has no LFN. */
+				break;
+			}
+		}
+#else		/* Non LFN configuration */
+		if (c != DDE && (_FS_RPATH || c != '.') && a != AM_LFN && (a == AM_VOL) == vol)	/* Is it a valid entry? */
+			break;
+#endif
+		res = dir_next(dj, 0);				/* Next entry */
+		if (res != FR_OK) break;
+	}
+
+	if (res != FR_OK) dj->sect = 0;
+
+	return res;
+}
+#endif	/* _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2 */
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Register an object to the directory                                   */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT dir_register (	/* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
+	DIR *dj				/* Target directory with object name to be created */
+)
+{
+	FRESULT res;
+#if _USE_LFN	/* LFN configuration */
+	WORD n, ne;
+	BYTE sn[12], *fn, sum;
+	WCHAR *lfn;
+
+
+	fn = dj->fn; lfn = dj->lfn;
+	mem_cpy(sn, fn, 12);
+
+	if (_FS_RPATH && (sn[NS] & NS_DOT))		/* Cannot create dot entry */
+		return FR_INVALID_NAME;
+
+	if (sn[NS] & NS_LOSS) {			/* When LFN is out of 8.3 format, generate a numbered name */
+		fn[NS] = 0; dj->lfn = 0;			/* Find only SFN */
+		for (n = 1; n < 100; n++) {
+			gen_numname(fn, sn, lfn, n);	/* Generate a numbered name */
+			res = dir_find(dj);				/* Check if the name collides with existing SFN */
+			if (res != FR_OK) break;
+		}
+		if (n == 100) return FR_DENIED;		/* Abort if too many collisions */
+		if (res != FR_NO_FILE) return res;	/* Abort if the result is other than 'not collided' */
+		fn[NS] = sn[NS]; dj->lfn = lfn;
+	}
+
+	if (sn[NS] & NS_LFN) {			/* When LFN is to be created, allocate entries for an SFN + LFNs. */
+		for (n = 0; lfn[n]; n++) ;
+		ne = (n + 25) / 13;
+	} else {						/* Otherwise allocate an entry for an SFN  */
+		ne = 1;
+	}
+	res = dir_alloc(dj, ne);		/* Allocate entries */
+
+	if (res == FR_OK && --ne) {		/* Set LFN entry if needed */
+		res = dir_sdi(dj, (WORD)(dj->index - ne));
+		if (res == FR_OK) {
+			sum = sum_sfn(dj->fn);	/* Sum value of the SFN tied to the LFN */
+			do {					/* Store LFN entries in bottom first */
+				res = move_window(dj->fs, dj->sect);
+				if (res != FR_OK) break;
+				fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum);
+				dj->fs->wflag = 1;
+				res = dir_next(dj, 0);	/* Next entry */
+			} while (res == FR_OK && --ne);
+		}
+	}
+#else	/* Non LFN configuration */
+	res = dir_alloc(dj, 1);		/* Allocate an entry for SFN */
+#endif
+
+	if (res == FR_OK) {				/* Set SFN entry */
+		res = move_window(dj->fs, dj->sect);
+		if (res == FR_OK) {
+			mem_set(dj->dir, 0, SZ_DIR);	/* Clean the entry */
+			mem_cpy(dj->dir, dj->fn, 11);	/* Put SFN */
+#if _USE_LFN
+			dj->dir[DIR_NTres] = *(dj->fn+NS) & (NS_BODY | NS_EXT);	/* Put NT flag */
+#endif
+			dj->fs->wflag = 1;
+		}
+	}
+
+	return res;
+}
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Remove an object from the directory                                   */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY && !_FS_MINIMIZE
+static
+FRESULT dir_remove (	/* FR_OK: Successful, FR_DISK_ERR: A disk error */
+	DIR *dj				/* Directory object pointing the entry to be removed */
+)
+{
+	FRESULT res;
+#if _USE_LFN	/* LFN configuration */
+	WORD i;
+
+	i = dj->index;	/* SFN index */
+	res = dir_sdi(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx));	/* Goto the SFN or top of the LFN entries */
+	if (res == FR_OK) {
+		do {
+			res = move_window(dj->fs, dj->sect);
+			if (res != FR_OK) break;
+			*dj->dir = DDE;			/* Mark the entry "deleted" */
+			dj->fs->wflag = 1;
+			if (dj->index >= i) break;	/* When reached SFN, all entries of the object has been deleted. */
+			res = dir_next(dj, 0);		/* Next entry */
+		} while (res == FR_OK);
+		if (res == FR_NO_FILE) res = FR_INT_ERR;
+	}
+
+#else			/* Non LFN configuration */
+	res = dir_sdi(dj, dj->index);
+	if (res == FR_OK) {
+		res = move_window(dj->fs, dj->sect);
+		if (res == FR_OK) {
+			*dj->dir = DDE;			/* Mark the entry "deleted" */
+			dj->fs->wflag = 1;
+		}
+	}
+#endif
+
+	return res;
+}
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Pick a segment and create the object name in directory form           */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT create_name (
+	DIR *dj,			/* Pointer to the directory object */
+	const TCHAR **path	/* Pointer to pointer to the segment in the path string */
+)
+{
+#if _USE_LFN	/* LFN configuration */
+	BYTE b, cf;
+	WCHAR w, *lfn;
+	UINT i, ni, si, di;
+	const TCHAR *p;
+
+	/* Create LFN in Unicode */
+	for (p = *path; *p == '/' || *p == '\\'; p++) ;	/* Strip duplicated separator */
+	lfn = dj->lfn;
+	si = di = 0;
+	for (;;) {
+		w = p[si++];					/* Get a character */
+		if (w < ' ' || w == '/' || w == '\\') break;	/* Break on end of segment */
+		if (di >= _MAX_LFN)				/* Reject too long name */
+			return FR_INVALID_NAME;
+#if !_LFN_UNICODE
+		w &= 0xFF;
+		if (IsDBCS1(w)) {				/* Check if it is a DBC 1st byte (always false on SBCS cfg) */
+			b = (BYTE)p[si++];			/* Get 2nd byte */
+			if (!IsDBCS2(b))
+				return FR_INVALID_NAME;	/* Reject invalid sequence */
+			w = (w << 8) + b;			/* Create a DBC */
+		}
+		w = ff_convert(w, 1);			/* Convert ANSI/OEM to Unicode */
+		if (!w) return FR_INVALID_NAME;	/* Reject invalid code */
+#endif
+		if (w < 0x80 && chk_chr("\"*:<>\?|\x7F", w)) /* Reject illegal chars for LFN */
+			return FR_INVALID_NAME;
+		lfn[di++] = w;					/* Store the Unicode char */
+	}
+	*path = &p[si];						/* Return pointer to the next segment */
+	cf = (w < ' ') ? NS_LAST : 0;		/* Set last segment flag if end of path */
+#if _FS_RPATH
+	if ((di == 1 && lfn[di-1] == '.') || /* Is this a dot entry? */
+		(di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
+		lfn[di] = 0;
+		for (i = 0; i < 11; i++)
+			dj->fn[i] = (i < di) ? '.' : ' ';
+		dj->fn[i] = cf | NS_DOT;		/* This is a dot entry */
+		return FR_OK;
+	}
+#endif
+	while (di) {						/* Strip trailing spaces and dots */
+		w = lfn[di-1];
+		if (w != ' ' && w != '.') break;
+		di--;
+	}
+	if (!di) return FR_INVALID_NAME;	/* Reject nul string */
+
+	lfn[di] = 0;						/* LFN is created */
+
+	/* Create SFN in directory form */
+	mem_set(dj->fn, ' ', 11);
+	for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ;	/* Strip leading spaces and dots */
+	if (si) cf |= NS_LOSS | NS_LFN;
+	while (di && lfn[di - 1] != '.') di--;	/* Find extension (di<=si: no extension) */
+
+	b = i = 0; ni = 8;
+	for (;;) {
+		w = lfn[si++];					/* Get an LFN char */
+		if (!w) break;					/* Break on end of the LFN */
+		if (w == ' ' || (w == '.' && si != di)) {	/* Remove spaces and dots */
+			cf |= NS_LOSS | NS_LFN; continue;
+		}
+
+		if (i >= ni || si == di) {		/* Extension or end of SFN */
+			if (ni == 11) {				/* Long extension */
+				cf |= NS_LOSS | NS_LFN; break;
+			}
+			if (si != di) cf |= NS_LOSS | NS_LFN;	/* Out of 8.3 format */
+			if (si > di) break;			/* No extension */
+			si = di; i = 8; ni = 11;	/* Enter extension section */
+			b <<= 2; continue;
+		}
+
+		if (w >= 0x80) {				/* Non ASCII char */
+#ifdef _EXCVT
+			w = ff_convert(w, 0);		/* Unicode -> OEM code */
+			if (w) w = ExCvt[w - 0x80];	/* Convert extended char to upper (SBCS) */
+#else
+			w = ff_convert(ff_wtoupper(w), 0);	/* Upper converted Unicode -> OEM code */
+#endif
+			cf |= NS_LFN;				/* Force create LFN entry */
+		}
+
+		if (_DF1S && w >= 0x100) {		/* Double byte char (always false on SBCS cfg) */
+			if (i >= ni - 1) {
+				cf |= NS_LOSS | NS_LFN; i = ni; continue;
+			}
+			dj->fn[i++] = (BYTE)(w >> 8);
+		} else {						/* Single byte char */
+			if (!w || chk_chr("+,;=[]", w)) {	/* Replace illegal chars for SFN */
+				w = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */
+			} else {
+				if (IsUpper(w)) {		/* ASCII large capital */
+					b |= 2;
+				} else {
+					if (IsLower(w)) {	/* ASCII small capital */
+						b |= 1; w -= 0x20;
+					}
+				}
+			}
+		}
+		dj->fn[i++] = (BYTE)w;
+	}
+
+	if (dj->fn[0] == DDE) dj->fn[0] = NDDE;	/* If the first char collides with deleted mark, replace it with 0x05 */
+
+	if (ni == 8) b <<= 2;
+	if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03)	/* Create LFN entry when there are composite capitals */
+		cf |= NS_LFN;
+	if (!(cf & NS_LFN)) {						/* When LFN is in 8.3 format without extended char, NT flags are created */
+		if ((b & 0x03) == 0x01) cf |= NS_EXT;	/* NT flag (Extension has only small capital) */
+		if ((b & 0x0C) == 0x04) cf |= NS_BODY;	/* NT flag (Filename has only small capital) */
+	}
+
+	dj->fn[NS] = cf;	/* SFN is created */
+
+	return FR_OK;
+
+
+#else	/* Non-LFN configuration */
+	BYTE b, c, d, *sfn;
+	UINT ni, si, i;
+	const char *p;
+
+	/* Create file name in directory form */
+	for (p = *path; *p == '/' || *p == '\\'; p++) ;	/* Strip duplicated separator */
+	sfn = dj->fn;
+	mem_set(sfn, ' ', 11);
+	si = i = b = 0; ni = 8;
+#if _FS_RPATH
+	if (p[si] == '.') { /* Is this a dot entry? */
+		for (;;) {
+			c = (BYTE)p[si++];
+			if (c != '.' || si >= 3) break;
+			sfn[i++] = c;
+		}
+		if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
+		*path = &p[si];									/* Return pointer to the next segment */
+		sfn[NS] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT;	/* Set last segment flag if end of path */
+		return FR_OK;
+	}
+#endif
+	for (;;) {
+		c = (BYTE)p[si++];
+		if (c <= ' ' || c == '/' || c == '\\') break;	/* Break on end of segment */
+		if (c == '.' || i >= ni) {
+			if (ni != 8 || c != '.') return FR_INVALID_NAME;
+			i = 8; ni = 11;
+			b <<= 2; continue;
+		}
+		if (c >= 0x80) {				/* Extended char? */
+			b |= 3;						/* Eliminate NT flag */
+#ifdef _EXCVT
+			c = ExCvt[c - 0x80];		/* To upper extended chars (SBCS cfg) */
+#else
+#if !_DF1S
+			return FR_INVALID_NAME;		/* Reject extended chars (ASCII cfg) */
+#endif
+#endif
+		}
+		if (IsDBCS1(c)) {				/* Check if it is a DBC 1st byte (always false on SBCS cfg) */
+			d = (BYTE)p[si++];			/* Get 2nd byte */
+			if (!IsDBCS2(d) || i >= ni - 1)	/* Reject invalid DBC */
+				return FR_INVALID_NAME;
+			sfn[i++] = c;
+			sfn[i++] = d;
+		} else {						/* Single byte code */
+			if (chk_chr("\"*+,:;<=>\?[]|\x7F", c))	/* Reject illegal chrs for SFN */
+				return FR_INVALID_NAME;
+			if (IsUpper(c)) {			/* ASCII large capital? */
+				b |= 2;
+			} else {
+				if (IsLower(c)) {		/* ASCII small capital? */
+					b |= 1; c -= 0x20;
+				}
+			}
+			sfn[i++] = c;
+		}
+	}
+	*path = &p[si];						/* Return pointer to the next segment */
+	c = (c <= ' ') ? NS_LAST : 0;		/* Set last segment flag if end of path */
+
+	if (!i) return FR_INVALID_NAME;		/* Reject nul string */
+	if (sfn[0] == DDE) sfn[0] = NDDE;	/* When first char collides with DDE, replace it with 0x05 */
+
+	if (ni == 8) b <<= 2;
+	if ((b & 0x03) == 0x01) c |= NS_EXT;	/* NT flag (Name extension has only small capital) */
+	if ((b & 0x0C) == 0x04) c |= NS_BODY;	/* NT flag (Name body has only small capital) */
+
+	sfn[NS] = c;		/* Store NT flag, File name is created */
+
+	return FR_OK;
+#endif
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get file information from directory entry                             */
+/*-----------------------------------------------------------------------*/
+#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2
+static
+void get_fileinfo (		/* No return code */
+	DIR *dj,			/* Pointer to the directory object */
+	FILINFO *fno	 	/* Pointer to the file information to be filled */
+)
+{
+	UINT i;
+	BYTE nt, *dir;
+	TCHAR *p, c;
+
+
+	p = fno->fname;
+	if (dj->sect) {
+		dir = dj->dir;
+		nt = dir[DIR_NTres];		/* NT flag */
+		for (i = 0; i < 8; i++) {	/* Copy name body */
+			c = dir[i];
+			if (c == ' ') break;
+			if (c == NDDE) c = (TCHAR)DDE;
+			if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20;
+#if _LFN_UNICODE
+			if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i+1]))
+				c = (c << 8) | dir[++i];
+			c = ff_convert(c, 1);
+			if (!c) c = '?';
+#endif
+			*p++ = c;
+		}
+		if (dir[8] != ' ') {		/* Copy name extension */
+			*p++ = '.';
+			for (i = 8; i < 11; i++) {
+				c = dir[i];
+				if (c == ' ') break;
+				if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20;
+#if _LFN_UNICODE
+				if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i+1]))
+					c = (c << 8) | dir[++i];
+				c = ff_convert(c, 1);
+				if (!c) c = '?';
+#endif
+				*p++ = c;
+			}
+		}
+		fno->fattrib = dir[DIR_Attr];				/* Attribute */
+		fno->fsize = LD_DWORD(dir+DIR_FileSize);	/* Size */
+		fno->fdate = LD_WORD(dir+DIR_WrtDate);		/* Date */
+		fno->ftime = LD_WORD(dir+DIR_WrtTime);		/* Time */
+	}
+	*p = 0;		/* Terminate SFN str by a \0 */
+
+#if _USE_LFN
+	if (fno->lfname && fno->lfsize) {
+		TCHAR *tp = fno->lfname;
+		WCHAR w, *lfn;
+
+		i = 0;
+		if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
+			lfn = dj->lfn;
+			while ((w = *lfn++) != 0) {			/* Get an LFN char */
+#if !_LFN_UNICODE
+				w = ff_convert(w, 0);			/* Unicode -> OEM conversion */
+				if (!w) { i = 0; break; }		/* Could not convert, no LFN */
+				if (_DF1S && w >= 0x100)		/* Put 1st byte if it is a DBC (always false on SBCS cfg) */
+					tp[i++] = (TCHAR)(w >> 8);
+#endif
+				if (i >= fno->lfsize - 1) { i = 0; break; }	/* Buffer overflow, no LFN */
+				tp[i++] = (TCHAR)w;
+			}
+		}
+		tp[i] = 0;	/* Terminate the LFN str by a \0 */
+	}
+#endif
+}
+#endif /* _FS_MINIMIZE <= 1 || _FS_RPATH >= 2*/
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Follow a file path                                                    */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT follow_path (	/* FR_OK(0): successful, !=0: error code */
+	DIR *dj,			/* Directory object to return last directory and found object */
+	const TCHAR *path	/* Full-path string to find a file or directory */
+)
+{
+	FRESULT res;
+	BYTE *dir, ns;
+
+
+#if _FS_RPATH
+	if (*path == '/' || *path == '\\') { /* There is a heading separator */
+		path++;	dj->sclust = 0;		/* Strip it and start from the root dir */
+	} else {							/* No heading separator */
+		dj->sclust = dj->fs->cdir;	/* Start from the current dir */
+	}
+#else
+	if (*path == '/' || *path == '\\')	/* Strip heading separator if exist */
+		path++;
+	dj->sclust = 0;						/* Start from the root dir */
+#endif
+
+	if ((UINT)*path < ' ') {			/* Nul path means the start directory itself */
+		res = dir_sdi(dj, 0);
+		dj->dir = 0;
+	} else {							/* Follow path */
+		for (;;) {
+			res = create_name(dj, &path);	/* Get a segment */
+			if (res != FR_OK) break;
+			res = dir_find(dj);				/* Find it */
+			ns = *(dj->fn+NS);
+			if (res != FR_OK) {				/* Failed to find the object */
+				if (res != FR_NO_FILE) break;	/* Abort if any hard error occurred */
+				/* Object not found */
+				if (_FS_RPATH && (ns & NS_DOT)) {	/* If dot entry is not exit */
+					dj->sclust = 0; dj->dir = 0;	/* It is the root dir */
+					res = FR_OK;
+					if (!(ns & NS_LAST)) continue;
+				} else {							/* Could not find the object */
+					if (!(ns & NS_LAST)) res = FR_NO_PATH;
+				}
+				break;
+			}
+			if (ns & NS_LAST) break;			/* Last segment match. Function completed. */
+			dir = dj->dir;						/* There is next segment. Follow the sub directory */
+			if (!(dir[DIR_Attr] & AM_DIR)) {	/* Cannot follow because it is a file */
+				res = FR_NO_PATH; break;
+			}
+			dj->sclust = ld_clust(dj->fs, dir);
+		}
+	}
+
+	return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Load a sector and check if it is an FAT Volume Boot Record            */
+/*-----------------------------------------------------------------------*/
+
+static
+BYTE check_fs (	/* 0:FAT-VBR, 1:Any BR but not FAT, 2:Not a BR, 3:Disk error */
+	FATFS *fs,	/* File system object */
+	DWORD sect	/* Sector# (lba) to check if it is an FAT boot record or not */
+)
+{
+	if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK)	/* Load boot record */
+		return 3;
+	if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55)		/* Check record signature (always placed at offset 510 even if the sector size is >512) */
+		return 2;
+
+	if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146)	/* Check "FAT" string */
+		return 0;
+	if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146)
+		return 0;
+
+	return 1;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Check if the file system object is valid or not                       */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT chk_mounted (	/* FR_OK(0): successful, !=0: any error occurred */
+	const TCHAR **path,	/* Pointer to pointer to the path name (drive number) */
+	FATFS **rfs,		/* Pointer to pointer to the found file system object */
+	BYTE wmode			/* !=0: Check write protection for write access */
+)
+{
+	BYTE fmt, b, pi, *tbl;
+	UINT vol;
+	DSTATUS stat;
+	DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
+	WORD nrsv;
+	const TCHAR *p = *path;
+	FATFS *fs;
+
+
+	/* Get logical drive number from the path name */
+	vol = p[0] - '0';					/* Is there a drive number? */
+	if (vol <= 9 && p[1] == ':') {		/* Found a drive number, get and strip it */
+		p += 2; *path = p;				/* Return pointer to the path name */
+	} else {							/* No drive number, use default drive */
+#if _FS_RPATH
+		vol = CurrVol;					/* Use current drive */
+#else
+		vol = 0;						/* Use drive 0 */
+#endif
+	}
+
+	/* Check if the file system object is valid or not */
+	*rfs = 0;
+	if (vol >= _VOLUMES) 				/* Is the drive number valid? */
+		return FR_INVALID_DRIVE;
+	fs = FatFs[vol];					/* Get corresponding file system object */
+	if (!fs) return FR_NOT_ENABLED;		/* Is the file system object available? */
+
+	ENTER_FF(fs);						/* Lock volume */
+
+	*rfs = fs;							/* Return pointer to the corresponding file system object */
+	if (fs->fs_type) {					/* If the volume has been mounted */
+		stat = disk_status(fs->drv);
+		if (!(stat & STA_NOINIT)) {		/* and the physical drive is kept initialized (has not been changed), */
+			if (!_FS_READONLY && wmode && (stat & STA_PROTECT))	/* Check write protection if needed */
+				return FR_WRITE_PROTECTED;
+			return FR_OK;				/* The file system object is valid */
+		}
+	}
+
+	/* The file system object is not valid. */
+	/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
+
+	fs->fs_type = 0;					/* Clear the file system object */
+	fs->drv = LD2PD(vol);				/* Bind the logical drive and a physical drive */
+	stat = disk_initialize(fs->drv);	/* Initialize the physical drive */
+	if (stat & STA_NOINIT)				/* Check if the initialization succeeded */
+		return FR_NOT_READY;			/* Failed to initialize due to no medium or hard error */
+	if (!_FS_READONLY && wmode && (stat & STA_PROTECT))	/* Check disk write protection if needed */
+		return FR_WRITE_PROTECTED;
+#if _MAX_SS != 512						/* Get disk sector size (variable sector size cfg only) */
+	if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &fs->ssize) != RES_OK)
+		return FR_DISK_ERR;
+#endif
+	/* Search FAT partition on the drive. Supports only generic partitions, FDISK and SFD. */
+	fmt = check_fs(fs, bsect = 0);		/* Load sector 0 and check if it is an FAT-VBR (in SFD) */
+	if (LD2PT(vol) && !fmt) fmt = 1;	/* Force non-SFD if the volume is forced partition */
+	if (fmt == 1) {						/* Not an FAT-VBR, the physical drive can be partitioned */
+		/* Check the partition listed in the partition table */
+		pi = LD2PT(vol);
+		if (pi) pi--;
+		tbl = &fs->win[MBR_Table + pi * SZ_PTE];/* Partition table */
+		if (tbl[4]) {						/* Is the partition existing? */
+			bsect = LD_DWORD(&tbl[8]);		/* Partition offset in LBA */
+			fmt = check_fs(fs, bsect);		/* Check the partition */
+		}
+	}
+	if (fmt == 3) return FR_DISK_ERR;
+	if (fmt) return FR_NO_FILESYSTEM;		/* No FAT volume is found */
+
+	/* An FAT volume is found. Following code initializes the file system object */
+
+	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs))		/* (BPB_BytsPerSec must be equal to the physical sector size) */
+		return FR_NO_FILESYSTEM;
+
+	fasize = LD_WORD(fs->win+BPB_FATSz16);				/* Number of sectors per FAT */
+	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32);
+	fs->fsize = fasize;
+
+	fs->n_fats = b = fs->win[BPB_NumFATs];				/* Number of FAT copies */
+	if (b != 1 && b != 2) return FR_NO_FILESYSTEM;		/* (Must be 1 or 2) */
+	fasize *= b;										/* Number of sectors for FAT area */
+
+	fs->csize = b = fs->win[BPB_SecPerClus];			/* Number of sectors per cluster */
+	if (!b || (b & (b - 1))) return FR_NO_FILESYSTEM;	/* (Must be power of 2) */
+
+	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt);	/* Number of root directory entries */
+	if (fs->n_rootdir % (SS(fs) / SZ_DIR)) return FR_NO_FILESYSTEM;	/* (BPB_RootEntCnt must be sector aligned) */
+
+	tsect = LD_WORD(fs->win+BPB_TotSec16);				/* Number of sectors on the volume */
+	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
+
+	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt);				/* Number of reserved sectors */
+	if (!nrsv) return FR_NO_FILESYSTEM;					/* (BPB_RsvdSecCnt must not be 0) */
+
+	/* Determine the FAT sub type */
+	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZ_DIR);	/* RSV+FAT+DIR */
+	if (tsect < sysect) return FR_NO_FILESYSTEM;		/* (Invalid volume size) */
+	nclst = (tsect - sysect) / fs->csize;				/* Number of clusters */
+	if (!nclst) return FR_NO_FILESYSTEM;				/* (Invalid volume size) */
+	fmt = FS_FAT12;
+	if (nclst >= MIN_FAT16) fmt = FS_FAT16;
+	if (nclst >= MIN_FAT32) fmt = FS_FAT32;
+
+	/* Boundaries and Limits */
+	fs->n_fatent = nclst + 2;							/* Number of FAT entries */
+	fs->volbase = bsect;								/* Volume start sector */
+	fs->fatbase = bsect + nrsv; 						/* FAT start sector */
+	fs->database = bsect + sysect;						/* Data start sector */
+	if (fmt == FS_FAT32) {
+		if (fs->n_rootdir) return FR_NO_FILESYSTEM;		/* (BPB_RootEntCnt must be 0) */
+		fs->dirbase = LD_DWORD(fs->win+BPB_RootClus);	/* Root directory start cluster */
+		szbfat = fs->n_fatent * 4;						/* (Required FAT size) */
+	} else {
+		if (!fs->n_rootdir)	return FR_NO_FILESYSTEM;	/* (BPB_RootEntCnt must not be 0) */
+		fs->dirbase = fs->fatbase + fasize;				/* Root directory start sector */
+		szbfat = (fmt == FS_FAT16) ?					/* (Required FAT size) */
+			fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
+	}
+	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs))	/* (BPB_FATSz must not be less than required) */
+		return FR_NO_FILESYSTEM;
+
+#if !_FS_READONLY
+	/* Initialize cluster allocation information */
+	fs->free_clust = 0xFFFFFFFF;
+	fs->last_clust = 0;
+
+	/* Get fsinfo if available */
+	if (fmt == FS_FAT32) {
+	 	fs->fsi_flag = 0;
+		fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
+		if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK &&
+			LD_WORD(fs->win+BS_55AA) == 0xAA55 &&
+			LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&
+			LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {
+				fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
+				fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
+		}
+	}
+#endif
+	fs->fs_type = fmt;		/* FAT sub-type */
+	fs->id = ++Fsid;		/* File system mount ID */
+	fs->winsect = 0;		/* Invalidate sector cache */
+	fs->wflag = 0;
+#if _FS_RPATH
+	fs->cdir = 0;			/* Current directory (root dir) */
+#endif
+#if _FS_LOCK				/* Clear file lock semaphores */
+	clear_lock(fs);
+#endif
+
+	return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Check if the file/dir object is valid or not                          */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT validate (	/* FR_OK(0): The object is valid, !=0: Invalid */
+	void* obj		/* Pointer to the object FIL/DIR to check validity */
+)
+{
+	FIL *fil = (FIL*)obj;	/* Assuming offset of fs and id in the FIL/DIR is identical */
+
+
+	if (!fil || !fil->fs || !fil->fs->fs_type || fil->fs->id != fil->id)
+		return FR_INVALID_OBJECT;
+
+	ENTER_FF(fil->fs);		/* Lock file system */
+
+	if (disk_status(fil->fs->drv) & STA_NOINIT)
+		return FR_NOT_READY;
+
+	return FR_OK;
+}
+
+
+
+
+/*--------------------------------------------------------------------------
+
+   Public Functions
+
+--------------------------------------------------------------------------*/
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Mount/Unmount a Logical Drive                                         */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_mount (
+	BYTE vol,		/* Logical drive number to be mounted/unmounted */
+	FATFS *fs		/* Pointer to new file system object (NULL for unmount)*/
+)
+{
+	FATFS *rfs;
+
+
+	if (vol >= _VOLUMES)		/* Check if the drive number is valid */
+		return FR_INVALID_DRIVE;
+	rfs = FatFs[vol];			/* Get current fs object */
+
+	if (rfs) {
+#if _FS_LOCK
+		clear_lock(rfs);
+#endif
+#if _FS_REENTRANT				/* Discard sync object of the current volume */
+		if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR;
+#endif
+		rfs->fs_type = 0;		/* Clear old fs object */
+	}
+
+	if (fs) {
+		fs->fs_type = 0;		/* Clear new fs object */
+#if _FS_REENTRANT				/* Create sync object for the new volume */
+		if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR;
+#endif
+	}
+	FatFs[vol] = fs;			/* Register new fs object */
+
+	return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Open or Create a File                                                 */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_open (
+	FIL *fp,			/* Pointer to the blank file object */
+	const TCHAR *path,	/* Pointer to the file name */
+	BYTE mode			/* Access mode and file open mode flags */
+)
+{
+	FRESULT res;
+	DIR dj;
+	BYTE *dir;
+	DEF_NAMEBUF;
+
+
+	if (!fp) return FR_INVALID_OBJECT;
+	fp->fs = 0;			/* Clear file object */
+
+#if !_FS_READONLY
+	mode &= FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW;
+	res = chk_mounted(&path, &dj.fs, (BYTE)(mode & ~FA_READ));
+#else
+	mode &= FA_READ;
+	res = chk_mounted(&path, &dj.fs, 0);
+#endif
+	if (res == FR_OK) {
+		INIT_BUF(dj);
+		res = follow_path(&dj, path);	/* Follow the file path */
+		dir = dj.dir;
+#if !_FS_READONLY	/* R/W configuration */
+		if (res == FR_OK) {
+			if (!dir)	/* Current dir itself */
+				res = FR_INVALID_NAME;
+#if _FS_LOCK
+			else
+				res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
+#endif
+		}
+		/* Create or Open a file */
+		if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {
+			DWORD dw, cl;
+
+			if (res != FR_OK) {					/* No file, create new */
+				if (res == FR_NO_FILE)			/* There is no file to open, create a new entry */
+#if _FS_LOCK
+					res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
+#else
+					res = dir_register(&dj);
+#endif
+				mode |= FA_CREATE_ALWAYS;		/* File is created */
+				dir = dj.dir;					/* New entry */
+			}
+			else {								/* Any object is already existing */
+				if (dir[DIR_Attr] & (AM_RDO | AM_DIR)) {	/* Cannot overwrite it (R/O or DIR) */
+					res = FR_DENIED;
+				} else {
+					if (mode & FA_CREATE_NEW)	/* Cannot create as new file */
+						res = FR_EXIST;
+				}
+			}
+			if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) {	/* Truncate it if overwrite mode */
+				dw = get_fattime();					/* Created time */
+				ST_DWORD(dir+DIR_CrtTime, dw);
+				dir[DIR_Attr] = 0;					/* Reset attribute */
+				ST_DWORD(dir+DIR_FileSize, 0);		/* size = 0 */
+				cl = ld_clust(dj.fs, dir);			/* Get start cluster */
+				st_clust(dir, 0);					/* cluster = 0 */
+				dj.fs->wflag = 1;
+				if (cl) {							/* Remove the cluster chain if exist */
+					dw = dj.fs->winsect;
+					res = remove_chain(dj.fs, cl);
+					if (res == FR_OK) {
+						dj.fs->last_clust = cl - 1;	/* Reuse the cluster hole */
+						res = move_window(dj.fs, dw);
+					}
+				}
+			}
+		}
+		else {	/* Open an existing file */
+			if (res == FR_OK) {						/* Follow succeeded */
+				if (dir[DIR_Attr] & AM_DIR) {		/* It is a directory */
+					res = FR_NO_FILE;
+				} else {
+					if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
+						res = FR_DENIED;
+				}
+			}
+		}
+		if (res == FR_OK) {
+			if (mode & FA_CREATE_ALWAYS)			/* Set file change flag if created or overwritten */
+				mode |= FA__WRITTEN;
+			fp->dir_sect = dj.fs->winsect;			/* Pointer to the directory entry */
+			fp->dir_ptr = dir;
+#if _FS_LOCK
+			fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
+			if (!fp->lockid) res = FR_INT_ERR;
+#endif
+		}
+
+#else				/* R/O configuration */
+		if (res == FR_OK) {					/* Follow succeeded */
+			dir = dj.dir;
+			if (!dir) {						/* Current dir itself */
+				res = FR_INVALID_NAME;
+			} else {
+				if (dir[DIR_Attr] & AM_DIR)	/* It is a directory */
+					res = FR_NO_FILE;
+			}
+		}
+#endif
+		FREE_BUF();
+
+		if (res == FR_OK) {
+			fp->flag = mode;					/* File access mode */
+			fp->sclust = ld_clust(dj.fs, dir);	/* File start cluster */
+			fp->fsize = LD_DWORD(dir+DIR_FileSize);	/* File size */
+			fp->fptr = 0;						/* File pointer */
+			fp->dsect = 0;
+#if _USE_FASTSEEK
+			fp->cltbl = 0;						/* Normal seek mode */
+#endif
+			fp->fs = dj.fs; fp->id = dj.fs->id;	/* Validate file object */
+		}
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read File                                                             */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_read (
+	FIL *fp, 		/* Pointer to the file object */
+	void *buff,		/* Pointer to data buffer */
+	UINT btr,		/* Number of bytes to read */
+	UINT *br		/* Pointer to number of bytes read */
+)
+{
+	FRESULT res;
+	DWORD clst, sect, remain;
+	UINT rcnt, cc;
+	BYTE csect, *rbuff = (BYTE*)buff;
+
+
+	*br = 0;	/* Clear read byte counter */
+
+	res = validate(fp);							/* Check validity */
+	if (res != FR_OK) LEAVE_FF(fp->fs, res);
+	if (fp->flag & FA__ERROR)					/* Aborted file? */
+		LEAVE_FF(fp->fs, FR_INT_ERR);
+	if (!(fp->flag & FA_READ)) 					/* Check access mode */
+		LEAVE_FF(fp->fs, FR_DENIED);
+	remain = fp->fsize - fp->fptr;
+	if (btr > remain) btr = (UINT)remain;		/* Truncate btr by remaining bytes */
+
+	for ( ;  btr;								/* Repeat until all data read */
+		rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
+		if ((fp->fptr % SS(fp->fs)) == 0) {		/* On the sector boundary? */
+			csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1));	/* Sector offset in the cluster */
+			if (!csect) {						/* On the cluster boundary? */
+				if (fp->fptr == 0) {			/* On the top of the file? */
+					clst = fp->sclust;			/* Follow from the origin */
+				} else {						/* Middle or end of the file */
+#if _USE_FASTSEEK
+					if (fp->cltbl)
+						clst = clmt_clust(fp, fp->fptr);	/* Get cluster# from the CLMT */
+					else
+#endif
+						clst = get_fat(fp->fs, fp->clust);	/* Follow cluster chain on the FAT */
+				}
+				if (clst < 2) ABORT(fp->fs, FR_INT_ERR);
+				if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
+				fp->clust = clst;				/* Update current cluster */
+			}
+			sect = clust2sect(fp->fs, fp->clust);	/* Get current sector */
+			if (!sect) ABORT(fp->fs, FR_INT_ERR);
+			sect += csect;
+			cc = btr / SS(fp->fs);				/* When remaining bytes >= sector size, */
+			if (cc) {							/* Read maximum contiguous sectors directly */
+				if (csect + cc > fp->fs->csize)	/* Clip at cluster boundary */
+					cc = fp->fs->csize - csect;
+				if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK)
+					ABORT(fp->fs, FR_DISK_ERR);
+#if !_FS_READONLY && _FS_MINIMIZE <= 2			/* Replace one of the read sectors with cached data if it contains a dirty sector */
+#if _FS_TINY
+				if (fp->fs->wflag && fp->fs->winsect - sect < cc)
+					mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
+#else
+				if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc)
+					mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
+#endif
+#endif
+				rcnt = SS(fp->fs) * cc;			/* Number of bytes transferred */
+				continue;
+			}
+#if !_FS_TINY
+			if (fp->dsect != sect) {			/* Load data sector if not in cache */
+#if !_FS_READONLY
+				if (fp->flag & FA__DIRTY) {		/* Write-back dirty sector cache */
+					if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
+						ABORT(fp->fs, FR_DISK_ERR);
+					fp->flag &= ~FA__DIRTY;
+				}
+#endif
+				if (disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)	/* Fill sector cache */
+					ABORT(fp->fs, FR_DISK_ERR);
+			}
+#endif
+			fp->dsect = sect;
+		}
+		rcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));	/* Get partial sector data from sector buffer */
+		if (rcnt > btr) rcnt = btr;
+#if _FS_TINY
+		if (move_window(fp->fs, fp->dsect))		/* Move sector window */
+			ABORT(fp->fs, FR_DISK_ERR);
+		mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt);	/* Pick partial sector */
+#else
+		mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt);	/* Pick partial sector */
+#endif
+	}
+
+	LEAVE_FF(fp->fs, FR_OK);
+}
+
+
+
+
+#if !_FS_READONLY
+/*-----------------------------------------------------------------------*/
+/* Write File                                                            */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_write (
+	FIL *fp,			/* Pointer to the file object */
+	const void *buff,	/* Pointer to the data to be written */
+	UINT btw,			/* Number of bytes to write */
+	UINT *bw			/* Pointer to number of bytes written */
+)
+{
+	FRESULT res;
+	DWORD clst, sect;
+	UINT wcnt, cc;
+	const BYTE *wbuff = (const BYTE*)buff;
+	BYTE csect;
+
+
+	*bw = 0;	/* Clear write byte counter */
+
+	res = validate(fp);						/* Check validity */
+	if (res != FR_OK) LEAVE_FF(fp->fs, res);
+	if (fp->flag & FA__ERROR)				/* Aborted file? */
+		LEAVE_FF(fp->fs, FR_INT_ERR);
+	if (!(fp->flag & FA_WRITE))				/* Check access mode */
+		LEAVE_FF(fp->fs, FR_DENIED);
+	if ((DWORD)(fp->fsize + btw) < fp->fsize) btw = 0;	/* File size cannot reach 4GB */
+
+	for ( ;  btw;							/* Repeat until all data written */
+		wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
+		if ((fp->fptr % SS(fp->fs)) == 0) {	/* On the sector boundary? */
+			csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1));	/* Sector offset in the cluster */
+			if (!csect) {					/* On the cluster boundary? */
+				if (fp->fptr == 0) {		/* On the top of the file? */
+					clst = fp->sclust;		/* Follow from the origin */
+					if (clst == 0)			/* When no cluster is allocated, */
+						fp->sclust = clst = create_chain(fp->fs, 0);	/* Create a new cluster chain */
+				} else {					/* Middle or end of the file */
+#if _USE_FASTSEEK
+					if (fp->cltbl)
+						clst = clmt_clust(fp, fp->fptr);	/* Get cluster# from the CLMT */
+					else
+#endif
+						clst = create_chain(fp->fs, fp->clust);	/* Follow or stretch cluster chain on the FAT */
+				}
+				if (clst == 0) break;		/* Could not allocate a new cluster (disk full) */
+				if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
+				if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
+				fp->clust = clst;			/* Update current cluster */
+			}
+#if _FS_TINY
+			if (fp->fs->winsect == fp->dsect && sync_window(fp->fs))	/* Write-back sector cache */
+				ABORT(fp->fs, FR_DISK_ERR);
+#else
+			if (fp->flag & FA__DIRTY) {		/* Write-back sector cache */
+				if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
+					ABORT(fp->fs, FR_DISK_ERR);
+				fp->flag &= ~FA__DIRTY;
+			}
+#endif
+			sect = clust2sect(fp->fs, fp->clust);	/* Get current sector */
+			if (!sect) ABORT(fp->fs, FR_INT_ERR);
+			sect += csect;
+			cc = btw / SS(fp->fs);			/* When remaining bytes >= sector size, */
+			if (cc) {						/* Write maximum contiguous sectors directly */
+				if (csect + cc > fp->fs->csize)	/* Clip at cluster boundary */
+					cc = fp->fs->csize - csect;
+				if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK)
+					ABORT(fp->fs, FR_DISK_ERR);
+#if _FS_TINY
+				if (fp->fs->winsect - sect < cc) {	/* Refill sector cache if it gets invalidated by the direct write */
+					mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
+					fp->fs->wflag = 0;
+				}
+#else
+				if (fp->dsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
+					mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
+					fp->flag &= ~FA__DIRTY;
+				}
+#endif
+				wcnt = SS(fp->fs) * cc;		/* Number of bytes transferred */
+				continue;
+			}
+#if _FS_TINY
+			if (fp->fptr >= fp->fsize) {	/* Avoid silly cache filling at growing edge */
+				if (sync_window(fp->fs)) ABORT(fp->fs, FR_DISK_ERR);
+				fp->fs->winsect = sect;
+			}
+#else
+			if (fp->dsect != sect) {		/* Fill sector cache with file data */
+				if (fp->fptr < fp->fsize &&
+					disk_read(fp->fs->drv, fp->buf, sect, 1) != RES_OK)
+						ABORT(fp->fs, FR_DISK_ERR);
+			}
+#endif
+			fp->dsect = sect;
+		}
+		wcnt = SS(fp->fs) - ((UINT)fp->fptr % SS(fp->fs));/* Put partial sector into file I/O buffer */
+		if (wcnt > btw) wcnt = btw;
+#if _FS_TINY
+		if (move_window(fp->fs, fp->dsect))	/* Move sector window */
+			ABORT(fp->fs, FR_DISK_ERR);
+		mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt);	/* Fit partial sector */
+		fp->fs->wflag = 1;
+#else
+		mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt);	/* Fit partial sector */
+		fp->flag |= FA__DIRTY;
+#endif
+	}
+
+	if (fp->fptr > fp->fsize) fp->fsize = fp->fptr;	/* Update file size if needed */
+	fp->flag |= FA__WRITTEN;						/* Set file change flag */
+
+	LEAVE_FF(fp->fs, FR_OK);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Synchronize the File Object                                           */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_sync (
+	FIL *fp		/* Pointer to the file object */
+)
+{
+	FRESULT res;
+	DWORD tm;
+	BYTE *dir;
+
+
+	res = validate(fp);					/* Check validity of the object */
+	if (res == FR_OK) {
+		if (fp->flag & FA__WRITTEN) {	/* Has the file been written? */
+#if !_FS_TINY	/* Write-back dirty buffer */
+			if (fp->flag & FA__DIRTY) {
+				if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
+					LEAVE_FF(fp->fs, FR_DISK_ERR);
+				fp->flag &= ~FA__DIRTY;
+			}
+#endif
+			/* Update the directory entry */
+			res = move_window(fp->fs, fp->dir_sect);
+			if (res == FR_OK) {
+				dir = fp->dir_ptr;
+				dir[DIR_Attr] |= AM_ARC;					/* Set archive bit */
+				ST_DWORD(dir+DIR_FileSize, fp->fsize);		/* Update file size */
+				st_clust(dir, fp->sclust);					/* Update start cluster */
+				tm = get_fattime();							/* Update updated time */
+				ST_DWORD(dir+DIR_WrtTime, tm);
+				ST_WORD(dir+DIR_LstAccDate, 0);
+				fp->flag &= ~FA__WRITTEN;
+				fp->fs->wflag = 1;
+				res = sync_fs(fp->fs);
+			}
+		}
+	}
+
+	LEAVE_FF(fp->fs, res);
+}
+
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Close File                                                            */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_close (
+	FIL *fp		/* Pointer to the file object to be closed */
+)
+{
+	FRESULT res;
+
+
+#if _FS_READONLY
+	res = validate(fp);
+	{
+#if _FS_REENTRANT
+		FATFS *fs = fp->fs;
+#endif
+		if (res == FR_OK) fp->fs = 0;	/* Discard file object */
+		LEAVE_FF(fs, res);
+	}
+#else
+	res = f_sync(fp);		/* Flush cached data */
+#if _FS_LOCK
+	if (res == FR_OK) {		/* Decrement open counter */
+#if _FS_REENTRANT
+		FATFS *fs = fp->fs;;
+		res = validate(fp);
+		if (res == FR_OK) {
+			res = dec_lock(fp->lockid);
+			unlock_fs(fs, FR_OK);
+		}
+#else
+		res = dec_lock(fp->lockid);
+#endif
+	}
+#endif
+	if (res == FR_OK) fp->fs = 0;	/* Discard file object */
+	return res;
+#endif
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Current Drive/Directory Handlings                                     */
+/*-----------------------------------------------------------------------*/
+
+#if _FS_RPATH >= 1
+
+FRESULT f_chdrive (
+	BYTE drv		/* Drive number */
+)
+{
+	if (drv >= _VOLUMES) return FR_INVALID_DRIVE;
+
+	CurrVol = drv;
+
+	return FR_OK;
+}
+
+BYTE f_get_current_drive(void)
+{
+  return CurrVol;
+}
+
+FRESULT f_chdir (
+	const TCHAR *path	/* Pointer to the directory path */
+)
+{
+	FRESULT res;
+	DIR dj;
+	DEF_NAMEBUF;
+
+
+	res = chk_mounted(&path, &dj.fs, 0);
+	if (res == FR_OK) {
+		INIT_BUF(dj);
+		res = follow_path(&dj, path);		/* Follow the path */
+		FREE_BUF();
+		if (res == FR_OK) {					/* Follow completed */
+			if (!dj.dir) {
+				dj.fs->cdir = dj.sclust;	/* Start directory itself */
+			} else {
+				if (dj.dir[DIR_Attr] & AM_DIR)	/* Reached to the directory */
+					dj.fs->cdir = ld_clust(dj.fs, dj.dir);
+				else
+					res = FR_NO_PATH;		/* Reached but a file */
+			}
+		}
+		if (res == FR_NO_FILE) res = FR_NO_PATH;
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+#if _FS_RPATH >= 2
+FRESULT f_getcwd (
+	TCHAR *buff,	/* Pointer to the directory path */
+	UINT len		/* Size of path */
+)
+{
+	FRESULT res;
+	DIR dj;
+	UINT i, n;
+	DWORD ccl;
+	TCHAR *tp;
+	FILINFO fno;
+	DEF_NAMEBUF;
+
+
+	*buff = 0;
+	res = chk_mounted((const TCHAR**)&buff, &dj.fs, 0);	/* Get current volume */
+	if (res == FR_OK) {
+		INIT_BUF(dj);
+		i = len;			/* Bottom of buffer (dir stack base) */
+		dj.sclust = dj.fs->cdir;			/* Start to follow upper dir from current dir */
+		while ((ccl = dj.sclust) != 0) {	/* Repeat while current dir is a sub-dir */
+			res = dir_sdi(&dj, 1);			/* Get parent dir */
+			if (res != FR_OK) break;
+			res = dir_read(&dj, 0);
+			if (res != FR_OK) break;
+			dj.sclust = ld_clust(dj.fs, dj.dir);	/* Goto parent dir */
+			res = dir_sdi(&dj, 0);
+			if (res != FR_OK) break;
+			do {							/* Find the entry links to the child dir */
+				res = dir_read(&dj, 0);
+				if (res != FR_OK) break;
+				if (ccl == ld_clust(dj.fs, dj.dir)) break;	/* Found the entry */
+				res = dir_next(&dj, 0);
+			} while (res == FR_OK);
+			if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
+			if (res != FR_OK) break;
+#if _USE_LFN
+			fno.lfname = buff;
+			fno.lfsize = i;
+#endif
+			get_fileinfo(&dj, &fno);		/* Get the dir name and push it to the buffer */
+			tp = fno.fname;
+			if (_USE_LFN && *buff) tp = buff;
+			for (n = 0; tp[n]; n++) ;
+			if (i < n + 3) {
+				res = FR_NOT_ENOUGH_CORE; break;
+			}
+			while (n) buff[--i] = tp[--n];
+			buff[--i] = '/';
+		}
+		tp = buff;
+		if (res == FR_OK) {
+			*tp++ = '0' + CurrVol;			/* Put drive number */
+			*tp++ = ':';
+			if (i == len) {					/* Root-dir */
+				*tp++ = '/';
+			} else {						/* Sub-dir */
+				do		/* Add stacked path str */
+					*tp++ = buff[i++];
+				while (i < len);
+			}
+		}
+		*tp = 0;
+		FREE_BUF();
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+#endif /* _FS_RPATH >= 2 */
+#endif /* _FS_RPATH >= 1 */
+
+
+
+#if _FS_MINIMIZE <= 2
+/*-----------------------------------------------------------------------*/
+/* Seek File R/W Pointer                                                 */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_lseek (
+	FIL *fp,		/* Pointer to the file object */
+	DWORD ofs		/* File pointer from top of file */
+)
+{
+	FRESULT res;
+
+
+	res = validate(fp);					/* Check validity of the object */
+	if (res != FR_OK) LEAVE_FF(fp->fs, res);
+	if (fp->flag & FA__ERROR)			/* Check abort flag */
+		LEAVE_FF(fp->fs, FR_INT_ERR);
+
+#if _USE_FASTSEEK
+	if (fp->cltbl) {	/* Fast seek */
+		DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
+
+		if (ofs == CREATE_LINKMAP) {	/* Create CLMT */
+			tbl = fp->cltbl;
+			tlen = *tbl++; ulen = 2;	/* Given table size and required table size */
+			cl = fp->sclust;			/* Top of the chain */
+			if (cl) {
+				do {
+					/* Get a fragment */
+					tcl = cl; ncl = 0; ulen += 2;	/* Top, length and used items */
+					do {
+						pcl = cl; ncl++;
+						cl = get_fat(fp->fs, cl);
+						if (cl <= 1) ABORT(fp->fs, FR_INT_ERR);
+						if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
+					} while (cl == pcl + 1);
+					if (ulen <= tlen) {		/* Store the length and top of the fragment */
+						*tbl++ = ncl; *tbl++ = tcl;
+					}
+				} while (cl < fp->fs->n_fatent);	/* Repeat until end of chain */
+			}
+			*fp->cltbl = ulen;	/* Number of items used */
+			if (ulen <= tlen)
+				*tbl = 0;		/* Terminate table */
+			else
+				res = FR_NOT_ENOUGH_CORE;	/* Given table size is smaller than required */
+
+		} else {						/* Fast seek */
+			if (ofs > fp->fsize)		/* Clip offset at the file size */
+				ofs = fp->fsize;
+			fp->fptr = ofs;				/* Set file pointer */
+			if (ofs) {
+				fp->clust = clmt_clust(fp, ofs - 1);
+				dsc = clust2sect(fp->fs, fp->clust);
+				if (!dsc) ABORT(fp->fs, FR_INT_ERR);
+				dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
+				if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) {	/* Refill sector cache if needed */
+#if !_FS_TINY
+#if !_FS_READONLY
+					if (fp->flag & FA__DIRTY) {		/* Write-back dirty sector cache */
+						if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
+							ABORT(fp->fs, FR_DISK_ERR);
+						fp->flag &= ~FA__DIRTY;
+					}
+#endif
+					if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK)	/* Load current sector */
+						ABORT(fp->fs, FR_DISK_ERR);
+#endif
+					fp->dsect = dsc;
+				}
+			}
+		}
+	} else
+#endif
+
+	/* Normal Seek */
+	{
+		DWORD clst, bcs, nsect, ifptr;
+
+		if (ofs > fp->fsize					/* In read-only mode, clip offset with the file size */
+#if !_FS_READONLY
+			 && !(fp->flag & FA_WRITE)
+#endif
+			) ofs = fp->fsize;
+
+		ifptr = fp->fptr;
+		fp->fptr = nsect = 0;
+		if (ofs) {
+			bcs = (DWORD)fp->fs->csize * SS(fp->fs);	/* Cluster size (byte) */
+			if (ifptr > 0 &&
+				(ofs - 1) / bcs >= (ifptr - 1) / bcs) {	/* When seek to same or following cluster, */
+				fp->fptr = (ifptr - 1) & ~(bcs - 1);	/* start from the current cluster */
+				ofs -= fp->fptr;
+				clst = fp->clust;
+			} else {									/* When seek to back cluster, */
+				clst = fp->sclust;						/* start from the first cluster */
+#if !_FS_READONLY
+				if (clst == 0) {						/* If no cluster chain, create a new chain */
+					clst = create_chain(fp->fs, 0);
+					if (clst == 1) ABORT(fp->fs, FR_INT_ERR);
+					if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
+					fp->sclust = clst;
+				}
+#endif
+				fp->clust = clst;
+			}
+			if (clst != 0) {
+				while (ofs > bcs) {						/* Cluster following loop */
+#if !_FS_READONLY
+					if (fp->flag & FA_WRITE) {			/* Check if in write mode or not */
+						clst = create_chain(fp->fs, clst);	/* Force stretch if in write mode */
+						if (clst == 0) {				/* When disk gets full, clip file size */
+							ofs = bcs; break;
+						}
+					} else
+#endif
+						clst = get_fat(fp->fs, clst);	/* Follow cluster chain if not in write mode */
+					if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
+					if (clst <= 1 || clst >= fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR);
+					fp->clust = clst;
+					fp->fptr += bcs;
+					ofs -= bcs;
+				}
+				fp->fptr += ofs;
+				if (ofs % SS(fp->fs)) {
+					nsect = clust2sect(fp->fs, clst);	/* Current sector */
+					if (!nsect) ABORT(fp->fs, FR_INT_ERR);
+					nsect += ofs / SS(fp->fs);
+				}
+			}
+		}
+		if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) {	/* Fill sector cache if needed */
+#if !_FS_TINY
+#if !_FS_READONLY
+			if (fp->flag & FA__DIRTY) {			/* Write-back dirty sector cache */
+				if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK)
+					ABORT(fp->fs, FR_DISK_ERR);
+				fp->flag &= ~FA__DIRTY;
+			}
+#endif
+			if (disk_read(fp->fs->drv, fp->buf, nsect, 1) != RES_OK)	/* Fill sector cache */
+				ABORT(fp->fs, FR_DISK_ERR);
+#endif
+			fp->dsect = nsect;
+		}
+#if !_FS_READONLY
+		if (fp->fptr > fp->fsize) {			/* Set file change flag if the file size is extended */
+			fp->fsize = fp->fptr;
+			fp->flag |= FA__WRITTEN;
+		}
+#endif
+	}
+
+	LEAVE_FF(fp->fs, res);
+}
+
+
+
+#if _FS_MINIMIZE <= 1
+/*-----------------------------------------------------------------------*/
+/* Create a Directory Object                                             */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_opendir (
+	DIR *dj,			/* Pointer to directory object to create */
+	const TCHAR *path	/* Pointer to the directory path */
+)
+{
+	FRESULT res;
+	FATFS *fs;
+	DEF_NAMEBUF;
+
+
+	if (!dj) return FR_INVALID_OBJECT;
+
+	res = chk_mounted(&path, &dj->fs, 0);
+	fs = dj->fs;
+	if (res == FR_OK) {
+		INIT_BUF(*dj);
+		res = follow_path(dj, path);			/* Follow the path to the directory */
+		FREE_BUF();
+		if (res == FR_OK) {						/* Follow completed */
+			if (dj->dir) {						/* It is not the root dir */
+				if (dj->dir[DIR_Attr] & AM_DIR) {	/* The object is a directory */
+					dj->sclust = ld_clust(fs, dj->dir);
+				} else {						/* The object is not a directory */
+					res = FR_NO_PATH;
+				}
+			}
+			if (res == FR_OK) {
+				dj->id = fs->id;
+				res = dir_sdi(dj, 0);			/* Rewind dir */
+			}
+		}
+		if (res == FR_NO_FILE) res = FR_NO_PATH;
+		if (res != FR_OK) dj->fs = 0;			/* Invalidate the dir object if function faild */
+	} else {
+		dj->fs = 0;
+	}
+
+	LEAVE_FF(fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read Directory Entry in Sequence                                      */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_readdir (
+	DIR *dj,			/* Pointer to the open directory object */
+	FILINFO *fno		/* Pointer to file information to return */
+)
+{
+	FRESULT res;
+	DEF_NAMEBUF;
+
+
+	res = validate(dj);						/* Check validity of the object */
+	if (res == FR_OK) {
+		if (!fno) {
+			res = dir_sdi(dj, 0);			/* Rewind the directory object */
+		} else {
+			INIT_BUF(*dj);
+			res = dir_read(dj, 0);			/* Read an item */
+			if (res == FR_NO_FILE) {		/* Reached end of dir */
+				dj->sect = 0;
+				res = FR_OK;
+			}
+			if (res == FR_OK) {				/* A valid entry is found */
+				get_fileinfo(dj, fno);		/* Get the object information */
+				res = dir_next(dj, 0);		/* Increment index for next */
+				if (res == FR_NO_FILE) {
+					dj->sect = 0;
+					res = FR_OK;
+				}
+			}
+			FREE_BUF();
+		}
+	}
+
+	LEAVE_FF(dj->fs, res);
+}
+
+
+
+#if _FS_MINIMIZE == 0
+/*-----------------------------------------------------------------------*/
+/* Get File Status                                                       */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_stat (
+	const TCHAR *path,	/* Pointer to the file path */
+	FILINFO *fno		/* Pointer to file information to return */
+)
+{
+	FRESULT res;
+	DIR dj;
+	DEF_NAMEBUF;
+
+
+	res = chk_mounted(&path, &dj.fs, 0);
+	if (res == FR_OK) {
+		INIT_BUF(dj);
+		res = follow_path(&dj, path);	/* Follow the file path */
+		if (res == FR_OK) {				/* Follow completed */
+			if (dj.dir)		/* Found an object */
+				get_fileinfo(&dj, fno);
+			else			/* It is root dir */
+				res = FR_INVALID_NAME;
+		}
+		FREE_BUF();
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+#if !_FS_READONLY
+/*-----------------------------------------------------------------------*/
+/* Get Number of Free Clusters                                           */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_getfree (
+	const TCHAR *path,	/* Path name of the logical drive number */
+	DWORD *nclst,		/* Pointer to a variable to return number of free clusters */
+	FATFS **fatfs		/* Pointer to return pointer to corresponding file system object */
+)
+{
+	FRESULT res;
+	FATFS *fs;
+	DWORD n, clst, sect, stat;
+	UINT i;
+	BYTE fat, *p;
+
+
+	/* Get drive number */
+	res = chk_mounted(&path, fatfs, 0);
+	fs = *fatfs;
+	if (res == FR_OK) {
+		/* If free_clust is valid, return it without full cluster scan */
+		if (fs->free_clust <= fs->n_fatent - 2) {
+			*nclst = fs->free_clust;
+		} else {
+			/* Get number of free clusters */
+			fat = fs->fs_type;
+			n = 0;
+			if (fat == FS_FAT12) {
+				clst = 2;
+				do {
+					stat = get_fat(fs, clst);
+					if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
+					if (stat == 1) { res = FR_INT_ERR; break; }
+					if (stat == 0) n++;
+				} while (++clst < fs->n_fatent);
+			} else {
+				clst = fs->n_fatent;
+				sect = fs->fatbase;
+				i = 0; p = 0;
+				do {
+					if (!i) {
+						res = move_window(fs, sect++);
+						if (res != FR_OK) break;
+						p = fs->win;
+						i = SS(fs);
+					}
+					if (fat == FS_FAT16) {
+						if (LD_WORD(p) == 0) n++;
+						p += 2; i -= 2;
+					} else {
+						if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++;
+						p += 4; i -= 4;
+					}
+				} while (--clst);
+			}
+			fs->free_clust = n;
+			if (fat == FS_FAT32) fs->fsi_flag = 1;
+			*nclst = n;
+		}
+	}
+	LEAVE_FF(fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Truncate File                                                         */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_truncate (
+	FIL *fp		/* Pointer to the file object */
+)
+{
+	FRESULT res;
+	DWORD ncl;
+
+
+	res = validate(fp);						/* Check validity of the object */
+	if (res == FR_OK) {
+		if (fp->flag & FA__ERROR) {			/* Check abort flag */
+			res = FR_INT_ERR;
+		} else {
+			if (!(fp->flag & FA_WRITE))		/* Check access mode */
+				res = FR_DENIED;
+		}
+	}
+	if (res == FR_OK) {
+		if (fp->fsize > fp->fptr) {
+			fp->fsize = fp->fptr;	/* Set file size to current R/W point */
+			fp->flag |= FA__WRITTEN;
+			if (fp->fptr == 0) {	/* When set file size to zero, remove entire cluster chain */
+				res = remove_chain(fp->fs, fp->sclust);
+				fp->sclust = 0;
+			} else {				/* When truncate a part of the file, remove remaining clusters */
+				ncl = get_fat(fp->fs, fp->clust);
+				res = FR_OK;
+				if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
+				if (ncl == 1) res = FR_INT_ERR;
+				if (res == FR_OK && ncl < fp->fs->n_fatent) {
+					res = put_fat(fp->fs, fp->clust, 0x0FFFFFFF);
+					if (res == FR_OK) res = remove_chain(fp->fs, ncl);
+				}
+			}
+		}
+		if (res != FR_OK) fp->flag |= FA__ERROR;
+	}
+
+	LEAVE_FF(fp->fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Delete a File or Directory                                            */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_unlink (
+	const TCHAR *path		/* Pointer to the file or directory path */
+)
+{
+	FRESULT res;
+	DIR dj, sdj;
+	BYTE *dir;
+	DWORD dclst;
+	DEF_NAMEBUF;
+
+
+	res = chk_mounted(&path, &dj.fs, 1);
+	if (res == FR_OK) {
+		INIT_BUF(dj);
+		res = follow_path(&dj, path);		/* Follow the file path */
+		if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
+			res = FR_INVALID_NAME;			/* Cannot remove dot entry */
+#if _FS_LOCK
+		if (res == FR_OK) res = chk_lock(&dj, 2);	/* Cannot remove open file */
+#endif
+		if (res == FR_OK) {					/* The object is accessible */
+			dir = dj.dir;
+			if (!dir) {
+				res = FR_INVALID_NAME;		/* Cannot remove the start directory */
+			} else {
+				if (dir[DIR_Attr] & AM_RDO)
+					res = FR_DENIED;		/* Cannot remove R/O object */
+			}
+			dclst = ld_clust(dj.fs, dir);
+			if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) {	/* Is it a sub-dir? */
+				if (dclst < 2) {
+					res = FR_INT_ERR;
+				} else {
+					mem_cpy(&sdj, &dj, sizeof (DIR));	/* Check if the sub-dir is empty or not */
+					sdj.sclust = dclst;
+					res = dir_sdi(&sdj, 2);		/* Exclude dot entries */
+					if (res == FR_OK) {
+						res = dir_read(&sdj, 0);	/* Read an item */
+						if (res == FR_OK		/* Not empty dir */
+#if _FS_RPATH
+						|| dclst == dj.fs->cdir	/* Current dir */
+#endif
+						) res = FR_DENIED;
+						if (res == FR_NO_FILE) res = FR_OK;	/* Empty */
+					}
+				}
+			}
+			if (res == FR_OK) {
+				res = dir_remove(&dj);		/* Remove the directory entry */
+				if (res == FR_OK) {
+					if (dclst)				/* Remove the cluster chain if exist */
+						res = remove_chain(dj.fs, dclst);
+					if (res == FR_OK) res = sync_fs(dj.fs);
+				}
+			}
+		}
+		FREE_BUF();
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Create a Directory                                                    */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_mkdir (
+	const TCHAR *path		/* Pointer to the directory path */
+)
+{
+	FRESULT res;
+	DIR dj;
+	BYTE *dir, n;
+	DWORD dsc, dcl, pcl, tm = get_fattime();
+	DEF_NAMEBUF;
+
+
+	res = chk_mounted(&path, &dj.fs, 1);
+	if (res == FR_OK) {
+		INIT_BUF(dj);
+		res = follow_path(&dj, path);			/* Follow the file path */
+		if (res == FR_OK) res = FR_EXIST;		/* Any object with same name is already existing */
+		if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT))
+			res = FR_INVALID_NAME;
+		if (res == FR_NO_FILE) {				/* Can create a new directory */
+			dcl = create_chain(dj.fs, 0);		/* Allocate a cluster for the new directory table */
+			res = FR_OK;
+			if (dcl == 0) res = FR_DENIED;		/* No space to allocate a new cluster */
+			if (dcl == 1) res = FR_INT_ERR;
+			if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
+			if (res == FR_OK)					/* Flush FAT */
+				res = sync_window(dj.fs);
+			if (res == FR_OK) {					/* Initialize the new directory table */
+				dsc = clust2sect(dj.fs, dcl);
+				dir = dj.fs->win;
+				mem_set(dir, 0, SS(dj.fs));
+				mem_set(dir+DIR_Name, ' ', 11);	/* Create "." entry */
+				dir[DIR_Name] = '.';
+				dir[DIR_Attr] = AM_DIR;
+				ST_DWORD(dir+DIR_WrtTime, tm);
+				st_clust(dir, dcl);
+				mem_cpy(dir+SZ_DIR, dir, SZ_DIR); 	/* Create ".." entry */
+				dir[33] = '.'; pcl = dj.sclust;
+				if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase)
+					pcl = 0;
+				st_clust(dir+SZ_DIR, pcl);
+				for (n = dj.fs->csize; n; n--) {	/* Write dot entries and clear following sectors */
+					dj.fs->winsect = dsc++;
+					dj.fs->wflag = 1;
+					res = sync_window(dj.fs);
+					if (res != FR_OK) break;
+					mem_set(dir, 0, SS(dj.fs));
+				}
+			}
+			if (res == FR_OK) res = dir_register(&dj);	/* Register the object to the directoy */
+			if (res != FR_OK) {
+				remove_chain(dj.fs, dcl);			/* Could not register, remove cluster chain */
+			} else {
+				dir = dj.dir;
+				dir[DIR_Attr] = AM_DIR;				/* Attribute */
+				ST_DWORD(dir+DIR_WrtTime, tm);		/* Created time */
+				st_clust(dir, dcl);					/* Table start cluster */
+				dj.fs->wflag = 1;
+				res = sync_fs(dj.fs);
+			}
+		}
+		FREE_BUF();
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Change Attribute                                                      */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_chmod (
+	const TCHAR *path,	/* Pointer to the file path */
+	BYTE value,			/* Attribute bits */
+	BYTE mask			/* Attribute mask to change */
+)
+{
+	FRESULT res;
+	DIR dj;
+	BYTE *dir;
+	DEF_NAMEBUF;
+
+
+	res = chk_mounted(&path, &dj.fs, 1);
+	if (res == FR_OK) {
+		INIT_BUF(dj);
+		res = follow_path(&dj, path);		/* Follow the file path */
+		FREE_BUF();
+		if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
+			res = FR_INVALID_NAME;
+		if (res == FR_OK) {
+			dir = dj.dir;
+			if (!dir) {						/* Is it a root directory? */
+				res = FR_INVALID_NAME;
+			} else {						/* File or sub directory */
+				mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC;	/* Valid attribute mask */
+				dir[DIR_Attr] = (value & mask) | (dir[DIR_Attr] & (BYTE)~mask);	/* Apply attribute change */
+				dj.fs->wflag = 1;
+				res = sync_fs(dj.fs);
+			}
+		}
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Change Timestamp                                                      */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_utime (
+	const TCHAR *path,	/* Pointer to the file/directory name */
+	const FILINFO *fno	/* Pointer to the time stamp to be set */
+)
+{
+	FRESULT res;
+	DIR dj;
+	BYTE *dir;
+	DEF_NAMEBUF;
+
+
+	res = chk_mounted(&path, &dj.fs, 1);
+	if (res == FR_OK) {
+		INIT_BUF(dj);
+		res = follow_path(&dj, path);	/* Follow the file path */
+		FREE_BUF();
+		if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT))
+			res = FR_INVALID_NAME;
+		if (res == FR_OK) {
+			dir = dj.dir;
+			if (!dir) {					/* Root directory */
+				res = FR_INVALID_NAME;
+			} else {					/* File or sub-directory */
+				ST_WORD(dir+DIR_WrtTime, fno->ftime);
+				ST_WORD(dir+DIR_WrtDate, fno->fdate);
+				dj.fs->wflag = 1;
+				res = sync_fs(dj.fs);
+			}
+		}
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Rename File/Directory                                                 */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_rename (
+	const TCHAR *path_old,	/* Pointer to the old name */
+	const TCHAR *path_new	/* Pointer to the new name */
+)
+{
+	FRESULT res;
+	DIR djo, djn;
+	BYTE buf[21], *dir;
+	DWORD dw;
+	DEF_NAMEBUF;
+
+
+	res = chk_mounted(&path_old, &djo.fs, 1);
+	if (res == FR_OK) {
+		djn.fs = djo.fs;
+		INIT_BUF(djo);
+		res = follow_path(&djo, path_old);		/* Check old object */
+		if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT))
+			res = FR_INVALID_NAME;
+#if _FS_LOCK
+		if (res == FR_OK) res = chk_lock(&djo, 2);
+#endif
+		if (res == FR_OK) {						/* Old object is found */
+			if (!djo.dir) {						/* Is root dir? */
+				res = FR_NO_FILE;
+			} else {
+				mem_cpy(buf, djo.dir+DIR_Attr, 21);		/* Save the object information except for name */
+				mem_cpy(&djn, &djo, sizeof (DIR));		/* Check new object */
+				res = follow_path(&djn, path_new);
+				if (res == FR_OK) res = FR_EXIST;		/* The new object name is already existing */
+				if (res == FR_NO_FILE) { 				/* Is it a valid path and no name collision? */
+/* Start critical section that any interruption can cause a cross-link */
+					res = dir_register(&djn);			/* Register the new entry */
+					if (res == FR_OK) {
+						dir = djn.dir;					/* Copy object information except for name */
+						mem_cpy(dir+13, buf+2, 19);
+						dir[DIR_Attr] = buf[0] | AM_ARC;
+						djo.fs->wflag = 1;
+						if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) {		/* Update .. entry in the directory if needed */
+							dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
+							if (!dw) {
+								res = FR_INT_ERR;
+							} else {
+								res = move_window(djo.fs, dw);
+								dir = djo.fs->win+SZ_DIR;	/* .. entry */
+								if (res == FR_OK && dir[1] == '.') {
+									dw = (djo.fs->fs_type == FS_FAT32 && djn.sclust == djo.fs->dirbase) ? 0 : djn.sclust;
+									st_clust(dir, dw);
+									djo.fs->wflag = 1;
+								}
+							}
+						}
+						if (res == FR_OK) {
+							res = dir_remove(&djo);		/* Remove old entry */
+							if (res == FR_OK)
+								res = sync_fs(djo.fs);
+						}
+					}
+/* End critical section */
+				}
+			}
+		}
+		FREE_BUF();
+	}
+
+	LEAVE_FF(djo.fs, res);
+}
+
+#endif /* !_FS_READONLY */
+#endif /* _FS_MINIMIZE == 0 */
+#endif /* _FS_MINIMIZE <= 1 */
+#endif /* _FS_MINIMIZE <= 2 */
+
+
+
+#if _USE_LABEL
+/*-----------------------------------------------------------------------*/
+/* Get volume label                                                      */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_getlabel (
+	const TCHAR* path,	/* Path name of the logical drive number */
+	TCHAR* label,		/* Pointer to a buffer to return the volume label */
+	DWORD* sn			/* Pointer to a variable to return the volume serial number */
+)
+{
+	FRESULT res;
+	DIR dj;
+	UINT i, j;
+
+
+	/* Get logical drive */
+	res = chk_mounted(&path, &dj.fs, 0);
+
+	/* Get volume label */
+	if (res == FR_OK && label) {
+		dj.sclust = 0;					/* Open root dir */
+		res = dir_sdi(&dj, 0);
+		if (res == FR_OK) {
+			res = dir_read(&dj, 1);		/* Get an entry with AM_VOL */
+			if (res == FR_OK) {			/* A volume label is exist */
+#if _LFN_UNICODE
+				WCHAR w;
+				i = j = 0;
+				do {
+					w = (i < 11) ? dj.dir[i++] : ' ';
+					if (IsDBCS1(w) && i < 11 && IsDBCS2(dj.dir[i]))
+						w = (w << 8) | dj.dir[i++];
+					label[j++] = ff_convert(w, 1);
+				} while (j < 11);
+#else
+				mem_cpy(label, dj.dir, 11);
+#endif
+				j = 11;
+				do {
+					label[j] = 0;
+					if (!j) break;
+				} while (label[--j] == ' ');
+			}
+			if (res == FR_NO_FILE) {	/* No label, return nul string */
+				label[0] = 0;
+				res = FR_OK;
+			}
+		}
+	}
+
+	/* Get volume serial number */
+	if (res == FR_OK && sn) {
+		res = move_window(dj.fs, dj.fs->volbase);
+		if (res == FR_OK) {
+			i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
+			*sn = LD_DWORD(&dj.fs->win[i]);
+		}
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+#if !_FS_READONLY
+/*-----------------------------------------------------------------------*/
+/* Set volume label                                                      */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_setlabel (
+	const TCHAR* label	/* Pointer to the volume label to set */
+)
+{
+	FRESULT res;
+	DIR dj;
+	BYTE vn[11];
+	UINT i, j, sl;
+	WCHAR w;
+	DWORD tm;
+
+
+	/* Get logical drive */
+	res = chk_mounted(&label, &dj.fs, 1);
+	if (res) LEAVE_FF(dj.fs, res);
+
+	/* Create a volume label in directory form */
+	vn[0] = 0;
+	for (sl = 0; label[sl]; sl++) ;				/* Get name length */
+	for ( ; sl && label[sl-1] == ' '; sl--) ;	/* Remove trailing spaces */
+	if (sl) {	/* Create volume label in directory form */
+		i = j = 0;
+		do {
+#if _LFN_UNICODE
+			w = ff_convert(ff_wtoupper(label[i++]), 0);
+#else
+			w = (BYTE)label[i++];
+			if (IsDBCS1(w))
+				w = (j < 10 && i < sl && IsDBCS2(label[i])) ? (w << 8) | (BYTE)label[i++] : 0;
+#if _USE_LFN
+			w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
+#else
+			if (IsLower(w)) w -= 0x20;			/* To upper ASCII chars */
+#ifdef _EXCVT
+			if (w >= 0x80) w = ExCvt[w - 0x80];	/* To upper extended chars (SBCS cfg) */
+#else
+			if (!_DF1S && w >= 0x80) w = 0;		/* Reject extended chars (ASCII cfg) */
+#endif
+#endif
+#endif
+			if (!w || chk_chr("\"*+,.:;<=>\?[]|\x7F", w) || j >= (UINT)((w >= 0x100) ? 10 : 11)) /* Reject invalid chars for volume label */
+				LEAVE_FF(dj.fs, FR_INVALID_NAME);
+			if (w >= 0x100) vn[j++] = (BYTE)(w >> 8);
+			vn[j++] = (BYTE)w;
+		} while (i < sl);
+		while (j < 11) vn[j++] = ' ';
+	}
+
+	/* Set volume label */
+	dj.sclust = 0;					/* Open root dir */
+	res = dir_sdi(&dj, 0);
+	if (res == FR_OK) {
+		res = dir_read(&dj, 1);		/* Get an entry with AM_VOL */
+		if (res == FR_OK) {			/* A volume label is found */
+			if (vn[0]) {
+				mem_cpy(dj.dir, vn, 11);	/* Change the volume label name */
+				tm = get_fattime();
+				ST_DWORD(dj.dir+DIR_WrtTime, tm);
+			} else {
+				dj.dir[0] = DDE;			/* Remove the volume label */
+			}
+			dj.fs->wflag = 1;
+			res = sync_fs(dj.fs);
+		} else {					/* No volume label is found or error */
+			if (res == FR_NO_FILE) {
+				res = FR_OK;
+				if (vn[0]) {				/* Create volume label as new */
+					res = dir_alloc(&dj, 1);	/* Allocate an entry for volume label */
+					if (res == FR_OK) {
+						mem_set(dj.dir, 0, SZ_DIR);	/* Set volume label */
+						mem_cpy(dj.dir, vn, 11);
+						dj.dir[DIR_Attr] = AM_VOL;
+						tm = get_fattime();
+						ST_DWORD(dj.dir+DIR_WrtTime, tm);
+						dj.fs->wflag = 1;
+						res = sync_fs(dj.fs);
+					}
+				}
+			}
+		}
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+#endif /* !_FS_READONLY */
+#endif /* _USE_LABEL */
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Forward data to the stream directly (available on only tiny cfg)      */
+/*-----------------------------------------------------------------------*/
+#if _USE_FORWARD && _FS_TINY
+
+FRESULT f_forward (
+	FIL *fp, 						/* Pointer to the file object */
+	UINT (*func)(const BYTE*,UINT),	/* Pointer to the streaming function */
+	UINT btf,						/* Number of bytes to forward */
+	UINT *bf						/* Pointer to number of bytes forwarded */
+)
+{
+	FRESULT res;
+	DWORD remain, clst, sect;
+	UINT rcnt;
+	BYTE csect;
+
+
+	*bf = 0;	/* Clear transfer byte counter */
+
+	res = validate(fp);								/* Check validity of the object */
+	if (res != FR_OK) LEAVE_FF(fp->fs, res);
+	if (fp->flag & FA__ERROR)						/* Check error flag */
+		LEAVE_FF(fp->fs, FR_INT_ERR);
+	if (!(fp->flag & FA_READ))						/* Check access mode */
+		LEAVE_FF(fp->fs, FR_DENIED);
+
+	remain = fp->fsize - fp->fptr;
+	if (btf > remain) btf = (UINT)remain;			/* Truncate btf by remaining bytes */
+
+	for ( ;  btf && (*func)(0, 0);					/* Repeat until all data transferred or stream becomes busy */
+		fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
+		csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1));	/* Sector offset in the cluster */
+		if ((fp->fptr % SS(fp->fs)) == 0) {			/* On the sector boundary? */
+			if (!csect) {							/* On the cluster boundary? */
+				clst = (fp->fptr == 0) ?			/* On the top of the file? */
+					fp->sclust : get_fat(fp->fs, fp->clust);
+				if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
+				if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
+				fp->clust = clst;					/* Update current cluster */
+			}
+		}
+		sect = clust2sect(fp->fs, fp->clust);		/* Get current data sector */
+		if (!sect) ABORT(fp->fs, FR_INT_ERR);
+		sect += csect;
+		if (move_window(fp->fs, sect))				/* Move sector window */
+			ABORT(fp->fs, FR_DISK_ERR);
+		fp->dsect = sect;
+		rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs));	/* Forward data from sector window */
+		if (rcnt > btf) rcnt = btf;
+		rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
+		if (!rcnt) ABORT(fp->fs, FR_INT_ERR);
+	}
+
+	LEAVE_FF(fp->fs, FR_OK);
+}
+#endif /* _USE_FORWARD */
+
+
+
+#if _USE_MKFS && !_FS_READONLY
+/*-----------------------------------------------------------------------*/
+/* Create File System on the Drive                                       */
+/*-----------------------------------------------------------------------*/
+#define N_ROOTDIR	512		/* Number of root dir entries for FAT12/16 */
+#define N_FATS		1		/* Number of FAT copies (1 or 2) */
+
+
+FRESULT f_mkfs (
+	BYTE vol,		/* Logical drive number */
+	BYTE sfd,		/* Partitioning rule 0:FDISK, 1:SFD */
+	UINT au			/* Allocation unit size [bytes] */
+)
+{
+	static const WORD vst[] = { 1024,   512,  256,  128,   64,    32,   16,    8,    4,    2,   0};
+	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
+	BYTE fmt, md, sys, *tbl, pdrv, part;
+	DWORD n_clst, vs, n, wsect;
+	UINT i;
+	DWORD b_vol, b_fat, b_dir, b_data;	/* LBA */
+	DWORD n_vol, n_rsv, n_fat, n_dir;	/* Size */
+	FATFS *fs;
+	DSTATUS stat;
+
+
+	/* Check mounted drive and clear work area */
+	if (vol >= _VOLUMES) return FR_INVALID_DRIVE;
+	if (sfd > 1) return FR_INVALID_PARAMETER;
+	if (au & (au - 1)) return FR_INVALID_PARAMETER;
+	fs = FatFs[vol];
+	if (!fs) return FR_NOT_ENABLED;
+	fs->fs_type = 0;
+	pdrv = LD2PD(vol);	/* Physical drive */
+	part = LD2PT(vol);	/* Partition (0:auto detect, 1-4:get from partition table)*/
+
+	/* Get disk statics */
+	stat = disk_initialize(pdrv);
+	if (stat & STA_NOINIT) return FR_NOT_READY;
+	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
+#if _MAX_SS != 512					/* Get disk sector size */
+	if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > _MAX_SS)
+		return FR_DISK_ERR;
+#endif
+	if (_MULTI_PARTITION && part) {
+		/* Get partition information from partition table in the MBR */
+		if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
+		if (LD_WORD(fs->win+BS_55AA) != 0xAA55) return FR_MKFS_ABORTED;
+		tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
+		if (!tbl[4]) return FR_MKFS_ABORTED;	/* No partition? */
+		b_vol = LD_DWORD(tbl+8);	/* Volume start sector */
+		n_vol = LD_DWORD(tbl+12);	/* Volume size */
+	} else {
+		/* Create a partition in this function */
+		if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK || n_vol < 128)
+			return FR_DISK_ERR;
+		b_vol = (sfd) ? 0 : 63;		/* Volume start sector */
+		n_vol -= b_vol;				/* Volume size */
+	}
+
+	if (!au) {				/* AU auto selection */
+		vs = n_vol / (2000 / (SS(fs) / 512));
+		for (i = 0; vs < vst[i]; i++) ;
+		au = cst[i];
+	}
+	au /= SS(fs);		/* Number of sectors per cluster */
+	if (au == 0) au = 1;
+	if (au > 128) au = 128;
+
+	/* Pre-compute number of clusters and FAT sub-type */
+	n_clst = n_vol / au;
+	fmt = FS_FAT12;
+	if (n_clst >= MIN_FAT16) fmt = FS_FAT16;
+	if (n_clst >= MIN_FAT32) fmt = FS_FAT32;
+
+	/* Determine offset and size of FAT structure */
+	if (fmt == FS_FAT32) {
+		n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
+		n_rsv = 32;
+		n_dir = 0;
+	} else {
+		n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
+		n_fat = (n_fat + SS(fs) - 1) / SS(fs);
+		n_rsv = 1;
+		n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
+	}
+	b_fat = b_vol + n_rsv;				/* FAT area start sector */
+	b_dir = b_fat + n_fat * N_FATS;		/* Directory area start sector */
+	b_data = b_dir + n_dir;				/* Data area start sector */
+	if (n_vol < b_data + au - b_vol) return FR_MKFS_ABORTED;	/* Too small volume */
+
+	/* Align data start sector to erase block boundary (for flash memory media) */
+	if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK || !n || n > 32768) n = 1;
+	n = (b_data + n - 1) & ~(n - 1);	/* Next nearest erase block from current data start */
+	n = (n - b_data) / N_FATS;
+	if (fmt == FS_FAT32) {		/* FAT32: Move FAT offset */
+		n_rsv += n;
+		b_fat += n;
+	} else {					/* FAT12/16: Expand FAT size */
+		n_fat += n;
+	}
+
+	/* Determine number of clusters and final check of validity of the FAT sub-type */
+	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
+	if (   (fmt == FS_FAT16 && n_clst < MIN_FAT16)
+		|| (fmt == FS_FAT32 && n_clst < MIN_FAT32))
+		return FR_MKFS_ABORTED;
+
+	switch (fmt) {	/* Determine system ID for partition table */
+	case FS_FAT12:	sys = 0x01; break;
+	case FS_FAT16:	sys = (n_vol < 0x10000) ? 0x04 : 0x06; break;
+	default: 		sys = 0x0C;
+	}
+
+	if (_MULTI_PARTITION && part) {
+		/* Update system ID in the partition table */
+		tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
+		tbl[4] = sys;
+		if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) return FR_DISK_ERR;
+		md = 0xF8;
+	} else {
+		if (sfd) {	/* No partition table (SFD) */
+			md = 0xF0;
+		} else {	/* Create partition table (FDISK) */
+			mem_set(fs->win, 0, SS(fs));
+			tbl = fs->win+MBR_Table;	/* Create partition table for single partition in the drive */
+			tbl[1] = 1;						/* Partition start head */
+			tbl[2] = 1;						/* Partition start sector */
+			tbl[3] = 0;						/* Partition start cylinder */
+			tbl[4] = sys;					/* System type */
+			tbl[5] = 254;					/* Partition end head */
+			n = (b_vol + n_vol) / 63 / 255;
+			tbl[6] = (BYTE)((n >> 2) | 63);	/* Partition end sector */
+			tbl[7] = (BYTE)n;				/* End cylinder */
+			ST_DWORD(tbl+8, 63);			/* Partition start in LBA */
+			ST_DWORD(tbl+12, n_vol);		/* Partition size in LBA */
+			ST_WORD(fs->win+BS_55AA, 0xAA55);	/* MBR signature */
+			if (disk_write(pdrv, fs->win, 0, 1) != RES_OK)	/* Write it to the MBR sector */
+				return FR_DISK_ERR;
+			md = 0xF8;
+		}
+	}
+
+	/* Create BPB in the VBR */
+	tbl = fs->win;							/* Clear sector */
+	mem_set(tbl, 0, SS(fs));
+	mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
+	i = SS(fs);								/* Sector size */
+	ST_WORD(tbl+BPB_BytsPerSec, i);
+	tbl[BPB_SecPerClus] = (BYTE)au;			/* Sectors per cluster */
+	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv);		/* Reserved sectors */
+	tbl[BPB_NumFATs] = N_FATS;				/* Number of FATs */
+	i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR;	/* Number of rootdir entries */
+	ST_WORD(tbl+BPB_RootEntCnt, i);
+	if (n_vol < 0x10000) {					/* Number of total sectors */
+		ST_WORD(tbl+BPB_TotSec16, n_vol);
+	} else {
+		ST_DWORD(tbl+BPB_TotSec32, n_vol);
+	}
+	tbl[BPB_Media] = md;					/* Media descriptor */
+	ST_WORD(tbl+BPB_SecPerTrk, 63);			/* Number of sectors per track */
+	ST_WORD(tbl+BPB_NumHeads, 255);			/* Number of heads */
+	ST_DWORD(tbl+BPB_HiddSec, b_vol);		/* Hidden sectors */
+	n = get_fattime();						/* Use current time as VSN */
+	if (fmt == FS_FAT32) {
+		ST_DWORD(tbl+BS_VolID32, n);		/* VSN */
+		ST_DWORD(tbl+BPB_FATSz32, n_fat);	/* Number of sectors per FAT */
+		ST_DWORD(tbl+BPB_RootClus, 2);		/* Root directory start cluster (2) */
+		ST_WORD(tbl+BPB_FSInfo, 1);			/* FSInfo record offset (VBR+1) */
+		ST_WORD(tbl+BPB_BkBootSec, 6);		/* Backup boot record offset (VBR+6) */
+		tbl[BS_DrvNum32] = 0x80;			/* Drive number */
+		tbl[BS_BootSig32] = 0x29;			/* Extended boot signature */
+		mem_cpy(tbl+BS_VolLab32, "NO NAME    " "FAT32   ", 19);	/* Volume label, FAT signature */
+	} else {
+		ST_DWORD(tbl+BS_VolID, n);			/* VSN */
+		ST_WORD(tbl+BPB_FATSz16, n_fat);	/* Number of sectors per FAT */
+		tbl[BS_DrvNum] = 0x80;				/* Drive number */
+		tbl[BS_BootSig] = 0x29;				/* Extended boot signature */
+		mem_cpy(tbl+BS_VolLab, "NO NAME    " "FAT     ", 19);	/* Volume label, FAT signature */
+	}
+	ST_WORD(tbl+BS_55AA, 0xAA55);			/* Signature (Offset is fixed here regardless of sector size) */
+	if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK)	/* Write it to the VBR sector */
+		return FR_DISK_ERR;
+	if (fmt == FS_FAT32)							/* Write backup VBR if needed (VBR+6) */
+		disk_write(pdrv, tbl, b_vol + 6, 1);
+
+	/* Initialize FAT area */
+	wsect = b_fat;
+	for (i = 0; i < N_FATS; i++) {		/* Initialize each FAT copy */
+		mem_set(tbl, 0, SS(fs));			/* 1st sector of the FAT  */
+		n = md;								/* Media descriptor byte */
+		if (fmt != FS_FAT32) {
+			n |= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
+			ST_DWORD(tbl+0, n);				/* Reserve cluster #0-1 (FAT12/16) */
+		} else {
+			n |= 0xFFFFFF00;
+			ST_DWORD(tbl+0, n);				/* Reserve cluster #0-1 (FAT32) */
+			ST_DWORD(tbl+4, 0xFFFFFFFF);
+			ST_DWORD(tbl+8, 0x0FFFFFFF);	/* Reserve cluster #2 for root dir */
+		}
+		if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
+			return FR_DISK_ERR;
+		mem_set(tbl, 0, SS(fs));			/* Fill following FAT entries with zero */
+		for (n = 1; n < n_fat; n++) {		/* This loop may take a time on FAT32 volume due to many single sector writes */
+			if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
+				return FR_DISK_ERR;
+		}
+	}
+
+	/* Initialize root directory */
+	i = (fmt == FS_FAT32) ? au : n_dir;
+	do {
+		if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK)
+			return FR_DISK_ERR;
+	} while (--i);
+
+#if _USE_ERASE	/* Erase data area if needed */
+	{
+		DWORD eb[2];
+
+		eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
+		disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
+	}
+#endif
+
+	/* Create FSInfo if needed */
+	if (fmt == FS_FAT32) {
+		ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
+		ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
+		ST_DWORD(tbl+FSI_Free_Count, n_clst - 1);	/* Number of free clusters */
+		ST_DWORD(tbl+FSI_Nxt_Free, 2);				/* Last allocated cluster# */
+		ST_WORD(tbl+BS_55AA, 0xAA55);
+		disk_write(pdrv, tbl, b_vol + 1, 1);	/* Write original (VBR+1) */
+		disk_write(pdrv, tbl, b_vol + 7, 1);	/* Write backup (VBR+7) */
+	}
+
+	return (disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
+}
+
+
+#if _MULTI_PARTITION
+/*-----------------------------------------------------------------------*/
+/* Divide Physical Drive                                                 */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_fdisk (
+	BYTE pdrv,			/* Physical drive number */
+	const DWORD szt[],	/* Pointer to the size table for each partitions */
+	void* work			/* Pointer to the working buffer */
+)
+{
+	UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
+	BYTE s_hd, e_hd, *p, *buf = (BYTE*)work;
+	DSTATUS stat;
+	DWORD sz_disk, sz_part, s_part;
+
+
+	stat = disk_initialize(pdrv);
+	if (stat & STA_NOINIT) return FR_NOT_READY;
+	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
+	if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
+
+	/* Determine CHS in the table regardless of the drive geometry */
+	for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
+	if (n == 256) n--;
+	e_hd = n - 1;
+	sz_cyl = 63 * n;
+	tot_cyl = sz_disk / sz_cyl;
+
+	/* Create partition table */
+	mem_set(buf, 0, _MAX_SS);
+	p = buf + MBR_Table; b_cyl = 0;
+	for (i = 0; i < 4; i++, p += SZ_PTE) {
+		p_cyl = (szt[i] <= 100) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
+		if (!p_cyl) continue;
+		s_part = (DWORD)sz_cyl * b_cyl;
+		sz_part = (DWORD)sz_cyl * p_cyl;
+		if (i == 0) {	/* Exclude first track of cylinder 0 */
+			s_hd = 1;
+			s_part += 63; sz_part -= 63;
+		} else {
+			s_hd = 0;
+		}
+		e_cyl = b_cyl + p_cyl - 1;
+		if (e_cyl >= tot_cyl) return FR_INVALID_PARAMETER;
+
+		/* Set partition table */
+		p[1] = s_hd;						/* Start head */
+		p[2] = (BYTE)((b_cyl >> 2) + 1);	/* Start sector */
+		p[3] = (BYTE)b_cyl;					/* Start cylinder */
+		p[4] = 0x06;						/* System type (temporary setting) */
+		p[5] = e_hd;						/* End head */
+		p[6] = (BYTE)((e_cyl >> 2) + 63);	/* End sector */
+		p[7] = (BYTE)e_cyl;					/* End cylinder */
+		ST_DWORD(p + 8, s_part);			/* Start sector in LBA */
+		ST_DWORD(p + 12, sz_part);			/* Partition size */
+
+		/* Next partition */
+		b_cyl += p_cyl;
+	}
+	ST_WORD(p, 0xAA55);
+
+	/* Write it to the MBR */
+	return (disk_write(pdrv, buf, 0, 1) || disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
+}
+
+
+#endif /* _MULTI_PARTITION */
+#endif /* _USE_MKFS && !_FS_READONLY */
+
+
+
+
+#if _USE_STRFUNC
+/*-----------------------------------------------------------------------*/
+/* Get a string from the file                                            */
+/*-----------------------------------------------------------------------*/
+
+TCHAR* f_gets (
+	TCHAR* buff,	/* Pointer to the string buffer to read */
+	int len,		/* Size of string buffer (characters) */
+	FIL* fp			/* Pointer to the file object */
+)
+{
+	int n = 0;
+	TCHAR c, *p = buff;
+	BYTE s[2];
+	UINT rc;
+
+
+	while (n < len - 1) {			/* Read bytes until buffer gets filled */
+		f_read(fp, s, 1, &rc);
+		if (rc != 1) break;			/* Break on EOF or error */
+		c = s[0];
+#if _LFN_UNICODE					/* Read a character in UTF-8 encoding */
+		if (c >= 0x80) {
+			if (c < 0xC0) continue;	/* Skip stray trailer */
+			if (c < 0xE0) {			/* Two-byte sequence */
+				f_read(fp, s, 1, &rc);
+				if (rc != 1) break;
+				c = ((c & 0x1F) << 6) | (s[0] & 0x3F);
+				if (c < 0x80) c = '?';
+			} else {
+				if (c < 0xF0) {		/* Three-byte sequence */
+					f_read(fp, s, 2, &rc);
+					if (rc != 2) break;
+					c = (c << 12) | ((s[0] & 0x3F) << 6) | (s[1] & 0x3F);
+					if (c < 0x800) c = '?';
+				} else {			/* Reject four-byte sequence */
+					c = '?';
+				}
+			}
+		}
+#endif
+#if _USE_STRFUNC >= 2
+		if (c == '\r') continue;	/* Strip '\r' */
+#endif
+		*p++ = c;
+		n++;
+		if (c == '\n') break;		/* Break on EOL */
+	}
+	*p = 0;
+	return n ? buff : 0;			/* When no data read (eof or error), return with error. */
+}
+
+
+
+#if !_FS_READONLY
+#include <stdarg.h>
+/*-----------------------------------------------------------------------*/
+/* Put a character to the file                                           */
+/*-----------------------------------------------------------------------*/
+
+int f_putc (
+	TCHAR c,	/* A character to be output */
+	FIL* fp		/* Pointer to the file object */
+)
+{
+	UINT bw, btw;
+	BYTE s[3];
+
+
+#if _USE_STRFUNC >= 2
+	if (c == '\n') f_putc ('\r', fp);	/* LF -> CRLF conversion */
+#endif
+
+#if _LFN_UNICODE	/* Write the character in UTF-8 encoding */
+	if (c < 0x80) {			/* 7-bit */
+		s[0] = (BYTE)c;
+		btw = 1;
+	} else {
+		if (c < 0x800) {	/* 11-bit */
+			s[0] = (BYTE)(0xC0 | (c >> 6));
+			s[1] = (BYTE)(0x80 | (c & 0x3F));
+			btw = 2;
+		} else {			/* 16-bit */
+			s[0] = (BYTE)(0xE0 | (c >> 12));
+			s[1] = (BYTE)(0x80 | ((c >> 6) & 0x3F));
+			s[2] = (BYTE)(0x80 | (c & 0x3F));
+			btw = 3;
+		}
+	}
+#else				/* Write the character without conversion */
+	s[0] = (BYTE)c;
+	btw = 1;
+#endif
+	f_write(fp, s, btw, &bw);		/* Write the char to the file */
+	return (bw == btw) ? 1 : EOF;	/* Return the result */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Put a string to the file                                              */
+/*-----------------------------------------------------------------------*/
+
+int f_puts (
+	const TCHAR* str,	/* Pointer to the string to be output */
+	FIL* fp				/* Pointer to the file object */
+)
+{
+	int n;
+
+
+	for (n = 0; *str; str++, n++) {
+		if (f_putc(*str, fp) == EOF) return EOF;
+	}
+	return n;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Put a formatted string to the file                                    */
+/*-----------------------------------------------------------------------*/
+
+int f_printf (
+	FIL* fp,			/* Pointer to the file object */
+	const TCHAR* str,	/* Pointer to the format string */
+	...					/* Optional arguments... */
+)
+{
+	va_list arp;
+	BYTE f, r;
+	UINT i, j, w;
+	ULONG v;
+	TCHAR c, d, s[16], *p;
+	int res, chc, cc;
+
+
+	va_start(arp, str);
+
+	for (cc = res = 0; cc != EOF; res += cc) {
+		c = *str++;
+		if (c == 0) break;			/* End of string */
+		if (c != '%') {				/* Non escape character */
+			cc = f_putc(c, fp);
+			if (cc != EOF) cc = 1;
+			continue;
+		}
+		w = f = 0;
+		c = *str++;
+		if (c == '0') {				/* Flag: '0' padding */
+			f = 1; c = *str++;
+		} else {
+			if (c == '-') {			/* Flag: left justified */
+				f = 2; c = *str++;
+			}
+		}
+		while (IsDigit(c)) {		/* Precision */
+			w = w * 10 + c - '0';
+			c = *str++;
+		}
+		if (c == 'l' || c == 'L') {	/* Prefix: Size is long int */
+			f |= 4; c = *str++;
+		}
+		if (!c) break;
+		d = c;
+		if (IsLower(d)) d -= 0x20;
+		switch (d) {				/* Type is... */
+		case 'S' :					/* String */
+			p = va_arg(arp, TCHAR*);
+			for (j = 0; p[j]; j++) ;
+			chc = 0;
+			if (!(f & 2)) {
+				while (j++ < w) chc += (cc = f_putc(' ', fp));
+			}
+			chc += (cc = f_puts(p, fp));
+			while (j++ < w) chc += (cc = f_putc(' ', fp));
+			if (cc != EOF) cc = chc;
+			continue;
+		case 'C' :					/* Character */
+			cc = f_putc((TCHAR)va_arg(arp, int), fp); continue;
+		case 'B' :					/* Binary */
+			r = 2; break;
+		case 'O' :					/* Octal */
+			r = 8; break;
+		case 'D' :					/* Signed decimal */
+		case 'U' :					/* Unsigned decimal */
+			r = 10; break;
+		case 'X' :					/* Hexdecimal */
+			r = 16; break;
+		default:					/* Unknown type (pass-through) */
+			cc = f_putc(c, fp); continue;
+		}
+
+		/* Get an argument and put it in numeral */
+		v = (f & 4) ? (ULONG)va_arg(arp, long) : ((d == 'D') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int));
+		if (d == 'D' && (v & 0x80000000)) {
+			v = 0 - v;
+			f |= 8;
+		}
+		i = 0;
+		do {
+			d = (TCHAR)(v % r); v /= r;
+			if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
+			s[i++] = d + '0';
+		} while (v && i < sizeof s / sizeof s[0]);
+		if (f & 8) s[i++] = '-';
+		j = i; d = (f & 1) ? '0' : ' ';
+		chc = 0;
+		while (!(f & 2) && j++ < w) chc += (cc = f_putc(d, fp));
+		do chc += (cc = f_putc(s[--i], fp)); while(i);
+		while (j++ < w) chc += (cc = f_putc(' ', fp));
+		if (cc != EOF) cc = chc;
+	}
+
+	va_end(arp);
+	return (cc == EOF) ? cc : res;
+}
+
+#endif /* !_FS_READONLY */
+#endif /* _USE_STRFUNC */
+
+#endif // CFG_TUH_MSC
diff --git a/lib/fatfs/ff.h b/lib/fatfs/ff.h
new file mode 100644
index 0000000..5c2a611
--- /dev/null
+++ b/lib/fatfs/ff.h
@@ -0,0 +1,342 @@
+/*---------------------------------------------------------------------------/
+/  FatFs - FAT file system module include file  R0.09b    (C)ChaN, 2013
+/----------------------------------------------------------------------------/
+/ FatFs module is a generic FAT file system module for small embedded systems.
+/ This is a free software that opened for education, research and commercial
+/ developments under license policy of following terms.
+/
+/  Copyright (C) 2013, ChaN, all right reserved.
+/
+/ * The FatFs module is a free software and there is NO WARRANTY.
+/ * No restriction on use. You can use, modify and redistribute it for
+/   personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
+/ * Redistributions of source code must retain the above copyright notice.
+/
+/----------------------------------------------------------------------------*/
+
+#ifndef _FATFS
+#define _FATFS	82786	/* Revision ID */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "integer.h"	/* Basic integer types */
+#include "ffconf.h"		/* FatFs configuration options */
+#include "tusb_config.h"
+
+#if _FATFS != _FFCONF
+#error Wrong configuration file (ffconf.h).
+#endif
+
+
+
+/* Definitions of volume management */
+
+#if _MULTI_PARTITION		/* Multiple partition configuration */
+typedef struct {
+	BYTE pd;	/* Physical drive number */
+	BYTE pt;	/* Partition: 0:Auto detect, 1-4:Forced partition) */
+} PARTITION;
+extern PARTITION VolToPart[];	/* Volume - Partition resolution table */
+#define LD2PD(vol) (VolToPart[vol].pd)	/* Get physical drive number */
+#define LD2PT(vol) (VolToPart[vol].pt)	/* Get partition index */
+
+#else							/* Single partition configuration */
+#define LD2PD(vol) (BYTE)(vol)	/* Each logical drive is bound to the same physical drive number */
+#define LD2PT(vol) 0			/* Always mounts the 1st partition or in SFD */
+
+#endif
+
+
+
+/* Type of path name strings on FatFs API */
+
+#if _LFN_UNICODE			/* Unicode string */
+#if !_USE_LFN
+#error _LFN_UNICODE must be 0 in non-LFN cfg.
+#endif
+#ifndef _INC_TCHAR
+typedef WCHAR TCHAR;
+#define _T(x) L ## x
+#define _TEXT(x) L ## x
+#endif
+
+#else						/* ANSI/OEM string */
+#ifndef _INC_TCHAR
+typedef char TCHAR;
+#define _T(x) x
+#define _TEXT(x) x
+#endif
+
+#endif
+
+
+
+/* File system object structure (FATFS) */
+
+typedef struct {
+	BYTE	fs_type;		/* FAT sub-type (0:Not mounted) */
+	BYTE	drv;			/* Physical drive number */
+	BYTE	csize;			/* Sectors per cluster (1,2,4...128) */
+	BYTE	n_fats;			/* Number of FAT copies (1,2) */
+	BYTE	wflag;			/* win[] dirty flag (1:must be written back) */
+	BYTE	fsi_flag;		/* fsinfo dirty flag (1:must be written back) */
+	WORD	id;				/* File system mount ID */
+	WORD	n_rootdir;		/* Number of root directory entries (FAT12/16) */
+#if _MAX_SS != 512
+	WORD	ssize;			/* Bytes per sector (512, 1024, 2048 or 4096) */
+#endif
+#if _FS_REENTRANT
+	_SYNC_t	sobj;			/* Identifier of sync object */
+#endif
+#if !_FS_READONLY
+	DWORD	last_clust;		/* Last allocated cluster */
+	DWORD	free_clust;		/* Number of free clusters */
+	DWORD	fsi_sector;		/* fsinfo sector (FAT32) */
+#endif
+#if _FS_RPATH
+	DWORD	cdir;			/* Current directory start cluster (0:root) */
+#endif
+	DWORD	n_fatent;		/* Number of FAT entries (= number of clusters + 2) */
+	DWORD	fsize;			/* Sectors per FAT */
+	DWORD	volbase;		/* Volume start sector */
+	DWORD	fatbase;		/* FAT start sector */
+	DWORD	dirbase;		/* Root directory start sector (FAT32:Cluster#) */
+	DWORD	database;		/* Data start sector */
+	DWORD	winsect;		/* Current sector appearing in the win[] */
+	BYTE	win[_MAX_SS];	/* Disk access window for Directory, FAT (and Data on tiny cfg) */
+} FATFS;
+
+
+
+/* File object structure (FIL) */
+
+typedef struct {
+	FATFS*	fs;				/* Pointer to the related file system object (**do not change order**) */
+	WORD	id;				/* Owner file system mount ID (**do not change order**) */
+	BYTE	flag;			/* File status flags */
+	BYTE	pad1;
+	DWORD	fptr;			/* File read/write pointer (0ed on file open) */
+	DWORD	fsize;			/* File size */
+	DWORD	sclust;			/* File data start cluster (0:no data cluster, always 0 when fsize is 0) */
+	DWORD	clust;			/* Current cluster of fpter */
+	DWORD	dsect;			/* Current data sector of fpter */
+#if !_FS_READONLY
+	DWORD	dir_sect;		/* Sector containing the directory entry */
+	BYTE*	dir_ptr;		/* Pointer to the directory entry in the window */
+#endif
+#if _USE_FASTSEEK
+	DWORD*	cltbl;			/* Pointer to the cluster link map table (null on file open) */
+#endif
+#if _FS_LOCK
+	UINT	lockid;			/* File lock ID (index of file semaphore table Files[]) */
+#endif
+#if !_FS_TINY
+	BYTE	buf[_MAX_SS];	/* File data read/write buffer */
+#endif
+} FIL;
+
+
+
+/* Directory object structure (DIR) */
+
+typedef struct {
+	FATFS*	fs;				/* Pointer to the owner file system object (**do not change order**) */
+	WORD	id;				/* Owner file system mount ID (**do not change order**) */
+	WORD	index;			/* Current read/write index number */
+	DWORD	sclust;			/* Table start cluster (0:Root dir) */
+	DWORD	clust;			/* Current cluster */
+	DWORD	sect;			/* Current sector */
+	BYTE*	dir;			/* Pointer to the current SFN entry in the win[] */
+	BYTE*	fn;				/* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
+#if _USE_LFN
+	WCHAR*	lfn;			/* Pointer to the LFN working buffer */
+	WORD	lfn_idx;		/* Last matched LFN index number (0xFFFF:No LFN) */
+#endif
+} DIR;
+
+
+
+/* File status structure (FILINFO) */
+
+typedef struct {
+	DWORD	fsize;			/* File size */
+	WORD	fdate;			/* Last modified date */
+	WORD	ftime;			/* Last modified time */
+	BYTE	fattrib;		/* Attribute */
+	TCHAR	fname[13];		/* Short file name (8.3 format) */
+#if _USE_LFN
+	TCHAR*	lfname;			/* Pointer to the LFN buffer */
+	UINT 	lfsize;			/* Size of LFN buffer in TCHAR */
+#endif
+} FILINFO;
+
+
+
+/* File function return code (FRESULT) */
+
+typedef enum {
+	FR_OK = 0,				/* (0) Succeeded */
+	FR_DISK_ERR,			/* (1) A hard error occurred in the low level disk I/O layer */
+	FR_INT_ERR,				/* (2) Assertion failed */
+	FR_NOT_READY,			/* (3) The physical drive cannot work */
+	FR_NO_FILE,				/* (4) Could not find the file */
+	FR_NO_PATH,				/* (5) Could not find the path */
+	FR_INVALID_NAME,		/* (6) The path name format is invalid */
+	FR_DENIED,				/* (7) Access denied due to prohibited access or directory full */
+	FR_EXIST,				/* (8) Access denied due to prohibited access */
+	FR_INVALID_OBJECT,		/* (9) The file/directory object is invalid */
+	FR_WRITE_PROTECTED,		/* (10) The physical drive is write protected */
+	FR_INVALID_DRIVE,		/* (11) The logical drive number is invalid */
+	FR_NOT_ENABLED,			/* (12) The volume has no work area */
+	FR_NO_FILESYSTEM,		/* (13) There is no valid FAT volume */
+	FR_MKFS_ABORTED,		/* (14) The f_mkfs() aborted due to any parameter error */
+	FR_TIMEOUT,				/* (15) Could not get a grant to access the volume within defined period */
+	FR_LOCKED,				/* (16) The operation is rejected according to the file sharing policy */
+	FR_NOT_ENOUGH_CORE,		/* (17) LFN working buffer could not be allocated */
+	FR_TOO_MANY_OPEN_FILES,	/* (18) Number of open files > _FS_SHARE */
+	FR_INVALID_PARAMETER	/* (19) Given parameter is invalid */
+} FRESULT;
+
+
+
+/*--------------------------------------------------------------*/
+/* FatFs module application interface                           */
+
+FRESULT f_mount (BYTE vol, FATFS* fs);								/* Mount/Unmount a logical drive */
+FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode);				/* Open or create a file */
+FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br);			/* Read data from a file */
+FRESULT f_lseek (FIL* fp, DWORD ofs);								/* Move file pointer of a file object */
+FRESULT f_close (FIL* fp);											/* Close an open file object */
+FRESULT f_opendir (DIR* dj, const TCHAR* path);						/* Open an existing directory */
+FRESULT f_readdir (DIR* dj, FILINFO* fno);							/* Read a directory item */
+FRESULT f_stat (const TCHAR* path, FILINFO* fno);					/* Get file status */
+FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw);	/* Write data to a file */
+FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs);	/* Get number of free clusters on the drive */
+FRESULT f_truncate (FIL* fp);										/* Truncate file */
+FRESULT f_sync (FIL* fp);											/* Flush cached data of a writing file */
+FRESULT f_unlink (const TCHAR* path);								/* Delete an existing file or directory */
+FRESULT	f_mkdir (const TCHAR* path);								/* Create a new directory */
+FRESULT f_chmod (const TCHAR* path, BYTE value, BYTE mask);			/* Change attribute of the file/dir */
+FRESULT f_utime (const TCHAR* path, const FILINFO* fno);			/* Change times-tamp of the file/dir */
+FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new);	/* Rename/Move a file or directory */
+FRESULT f_chdrive (BYTE drv);										/* Change current drive */
+BYTE    f_get_current_drive(void);
+FRESULT f_chdir (const TCHAR* path);								/* Change current directory */
+FRESULT f_getcwd (TCHAR* buff, UINT len);							/* Get current directory */
+FRESULT	f_getlabel (const TCHAR* path, TCHAR* label, DWORD* sn);	/* Get volume label */
+FRESULT	f_setlabel (const TCHAR* label);							/* Set volume label */
+FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf);	/* Forward data to the stream */
+FRESULT f_mkfs (BYTE vol, BYTE sfd, UINT au);						/* Create a file system on the drive */
+FRESULT	f_fdisk (BYTE pdrv, const DWORD szt[], void* work);			/* Divide a physical drive into some partitions */
+int f_putc (TCHAR c, FIL* fp);										/* Put a character to the file */
+int f_puts (const TCHAR* str, FIL* cp);								/* Put a string to the file */
+int f_printf (FIL* fp, const TCHAR* str, ...);						/* Put a formatted string to the file */
+TCHAR* f_gets (TCHAR* buff, int len, FIL* fp);						/* Get a string from the file */
+
+#define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0)
+#define f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0)
+#define f_tell(fp) ((fp)->fptr)
+#define f_size(fp) ((fp)->fsize)
+
+#ifndef EOF
+#define EOF (-1)
+#endif
+
+
+
+
+/*--------------------------------------------------------------*/
+/* Additional user defined functions                            */
+
+/* RTC function */
+#if !_FS_READONLY
+DWORD get_fattime (void);
+#endif
+
+/* Unicode support functions */
+#if _USE_LFN							/* Unicode - OEM code conversion */
+WCHAR ff_convert (WCHAR chr, UINT dir);	/* OEM-Unicode bidirectional conversion */
+WCHAR ff_wtoupper (WCHAR chr);			/* Unicode upper-case conversion */
+#if _USE_LFN == 3						/* Memory functions */
+void* ff_memalloc (UINT msize);			/* Allocate memory block */
+void ff_memfree (void* mblock);			/* Free memory block */
+#endif
+#endif
+
+/* Sync functions */
+#if _FS_REENTRANT
+int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj);	/* Create a sync object */
+int ff_req_grant (_SYNC_t sobj);				/* Lock sync object */
+void ff_rel_grant (_SYNC_t sobj);				/* Unlock sync object */
+int ff_del_syncobj (_SYNC_t sobj);				/* Delete a sync object */
+#endif
+
+
+
+
+/*--------------------------------------------------------------*/
+/* Flags and offset address                                     */
+
+
+/* File access control and file status flags (FIL.flag) */
+
+#define	FA_READ				0x01
+#define	FA_OPEN_EXISTING	0x00
+#define FA__ERROR			0x80
+
+#if !_FS_READONLY
+#define	FA_WRITE			0x02
+#define	FA_CREATE_NEW		0x04
+#define	FA_CREATE_ALWAYS	0x08
+#define	FA_OPEN_ALWAYS		0x10
+#define FA__WRITTEN			0x20
+#define FA__DIRTY			0x40
+#endif
+
+
+/* FAT sub type (FATFS.fs_type) */
+
+#define FS_FAT12	1
+#define FS_FAT16	2
+#define FS_FAT32	3
+
+
+/* File attribute bits for directory entry */
+
+#define	AM_RDO	0x01	/* Read only */
+#define	AM_HID	0x02	/* Hidden */
+#define	AM_SYS	0x04	/* System */
+#define	AM_VOL	0x08	/* Volume label */
+#define AM_LFN	0x0F	/* LFN entry */
+#define AM_DIR	0x10	/* Directory */
+#define AM_ARC	0x20	/* Archive */
+#define AM_MASK	0x3F	/* Mask of defined bits */
+
+
+/* Fast seek feature */
+#define CREATE_LINKMAP	0xFFFFFFFF
+
+
+
+/*--------------------------------*/
+/* Multi-byte word access macros  */
+
+#if _WORD_ACCESS == 1	/* Enable word access to the FAT structure */
+#define	LD_WORD(ptr)		(WORD)(*(WORD*)(BYTE*)(ptr))
+#define	LD_DWORD(ptr)		(DWORD)(*(DWORD*)(BYTE*)(ptr))
+#define	ST_WORD(ptr,val)	*(WORD*)(BYTE*)(ptr)=(WORD)(val)
+#define	ST_DWORD(ptr,val)	*(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
+#else					/* Use byte-by-byte access to the FAT structure */
+#define	LD_WORD(ptr)		(WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
+#define	LD_DWORD(ptr)		(DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
+#define	ST_WORD(ptr,val)	*(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
+#define	ST_DWORD(ptr,val)	*(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8); *((BYTE*)(ptr)+2)=(BYTE)((DWORD)(val)>>16); *((BYTE*)(ptr)+3)=(BYTE)((DWORD)(val)>>24)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _FATFS */
diff --git a/lib/fatfs/ffconf.h b/lib/fatfs/ffconf.h
new file mode 100644
index 0000000..782057e
--- /dev/null
+++ b/lib/fatfs/ffconf.h
@@ -0,0 +1,193 @@
+/*---------------------------------------------------------------------------/
+/  FatFs - FAT file system module configuration file  R0.09b (C)ChaN, 2013
+/----------------------------------------------------------------------------/
+/
+/ CAUTION! Do not forget to make clean the project after any changes to
+/ the configuration options.
+/
+/----------------------------------------------------------------------------*/
+#ifndef _FFCONF
+#define _FFCONF 82786	/* Revision ID */
+
+#include "tusb_config.h"
+
+/*---------------------------------------------------------------------------/
+/ Functions and Buffer Configurations
+/----------------------------------------------------------------------------*/
+
+#define	_FS_TINY		0	/* 0:Normal or 1:Tiny */
+/* When _FS_TINY is set to 1, FatFs uses the sector buffer in the file system
+/  object instead of the sector buffer in the individual file object for file
+/  data transfer. This reduces memory consumption 512 bytes each file object. */
+
+
+#define _FS_READONLY	0	/* 0:Read/Write or 1:Read only */
+/* Setting _FS_READONLY to 1 defines read only configuration. This removes
+/  writing functions, f_write, f_sync, f_unlink, f_mkdir, f_chmod, f_rename,
+/  f_truncate and useless f_getfree. */
+
+
+#define _FS_MINIMIZE	0	/* 0 to 3 */
+/* The _FS_MINIMIZE option defines minimization level to remove some functions.
+/
+/   0: Full function.
+/   1: f_stat, f_getfree, f_unlink, f_mkdir, f_chmod, f_truncate and f_rename
+/      are removed.
+/   2: f_opendir and f_readdir are removed in addition to 1.
+/   3: f_lseek is removed in addition to 2. */
+
+
+#define	_USE_STRFUNC	0	/* 0:Disable or 1-2:Enable */
+/* To enable string functions, set _USE_STRFUNC to 1 or 2. */
+
+
+#define	_USE_MKFS		0	/* 0:Disable or 1:Enable */
+/* To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */
+
+
+#define	_USE_FASTSEEK	0	/* 0:Disable or 1:Enable */
+/* To enable fast seek feature, set _USE_FASTSEEK to 1. */
+
+
+#define _USE_LABEL		1	/* 0:Disable or 1:Enable */
+/* To enable volume label functions, set _USE_LAVEL to 1 */
+
+
+#define	_USE_FORWARD	0	/* 0:Disable or 1:Enable */
+/* To enable f_forward function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */
+
+
+/*---------------------------------------------------------------------------/
+/ Locale and Namespace Configurations
+/----------------------------------------------------------------------------*/
+
+#define _CODE_PAGE	437
+/* The _CODE_PAGE specifies the OEM code page to be used on the target system.
+/  Incorrect setting of the code page can cause a file open failure.
+/
+/   932  - Japanese Shift-JIS (DBCS, OEM, Windows)
+/   936  - Simplified Chinese GBK (DBCS, OEM, Windows)
+/   949  - Korean (DBCS, OEM, Windows)
+/   950  - Traditional Chinese Big5 (DBCS, OEM, Windows)
+/   1250 - Central Europe (Windows)
+/   1251 - Cyrillic (Windows)
+/   1252 - Latin 1 (Windows)
+/   1253 - Greek (Windows)
+/   1254 - Turkish (Windows)
+/   1255 - Hebrew (Windows)
+/   1256 - Arabic (Windows)
+/   1257 - Baltic (Windows)
+/   1258 - Vietnam (OEM, Windows)
+/   437  - U.S. (OEM)
+/   720  - Arabic (OEM)
+/   737  - Greek (OEM)
+/   775  - Baltic (OEM)
+/   850  - Multilingual Latin 1 (OEM)
+/   858  - Multilingual Latin 1 + Euro (OEM)
+/   852  - Latin 2 (OEM)
+/   855  - Cyrillic (OEM)
+/   866  - Russian (OEM)
+/   857  - Turkish (OEM)
+/   862  - Hebrew (OEM)
+/   874  - Thai (OEM, Windows)
+/	1    - ASCII only (Valid for non LFN cfg.)
+*/
+
+
+#define	_USE_LFN	1		/* 0 to 3 */
+#define	_MAX_LFN	255		/* Maximum LFN length to handle (12 to 255) */
+/* The _USE_LFN option switches the LFN support.
+/
+/   0: Disable LFN feature. _MAX_LFN and _LFN_UNICODE have no effect.
+/   1: Enable LFN with static working buffer on the BSS. Always NOT reentrant.
+/   2: Enable LFN with dynamic working buffer on the STACK.
+/   3: Enable LFN with dynamic working buffer on the HEAP.
+/
+/  The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. To enable LFN,
+/  Unicode handling functions ff_convert() and ff_wtoupper() must be added
+/  to the project. When enable to use heap, memory control functions
+/  ff_memalloc() and ff_memfree() must be added to the project. */
+
+
+#define	_LFN_UNICODE	0	/* 0:ANSI/OEM or 1:Unicode */
+/* To switch the character code set on FatFs API to Unicode,
+/  enable LFN feature and set _LFN_UNICODE to 1. */
+
+
+#define _FS_RPATH		2	/* 0 to 2 */
+/* The _FS_RPATH option configures relative path feature.
+/
+/   0: Disable relative path feature and remove related functions.
+/   1: Enable relative path. f_chdrive() and f_chdir() are available.
+/   2: f_getcwd() is available in addition to 1.
+/
+/  Note that output of the f_readdir fnction is affected by this option. */
+
+
+/*---------------------------------------------------------------------------/
+/ Physical Drive Configurations
+/----------------------------------------------------------------------------*/
+
+#define _VOLUMES	CFG_TUH_DEVICE_MAX
+/* Number of volumes (logical drives) to be used. */
+
+
+#define	_MAX_SS		512		/* 512, 1024, 2048 or 4096 */
+/* Maximum sector size to be handled.
+/  Always set 512 for memory card and hard disk but a larger value may be
+/  required for on-board flash memory, floppy disk and optical disk.
+/  When _MAX_SS is larger than 512, it configures FatFs to variable sector size
+/  and GET_SECTOR_SIZE command must be implememted to the disk_ioctl function. */
+
+
+#define	_MULTI_PARTITION	0	/* 0:Single partition, 1:Enable multiple partition */
+/* When set to 0, each volume is bound to the same physical drive number and
+/ it can mount only first primaly partition. When it is set to 1, each volume
+/ is tied to the partitions listed in VolToPart[]. */
+
+
+#define	_USE_ERASE	0	/* 0:Disable or 1:Enable */
+/* To enable sector erase feature, set _USE_ERASE to 1. CTRL_ERASE_SECTOR command
+/  should be added to the disk_ioctl functio. */
+
+
+
+/*---------------------------------------------------------------------------/
+/ System Configurations
+/----------------------------------------------------------------------------*/
+
+#define _WORD_ACCESS	0	/* 0 or 1 */
+/* Set 0 first and it is always compatible with all platforms. The _WORD_ACCESS
+/  option defines which access method is used to the word data on the FAT volume.
+/
+/   0: Byte-by-byte access.
+/   1: Word access. Do not choose this unless following condition is met.
+/
+/  When the byte order on the memory is big-endian or address miss-aligned word
+/  access results incorrect behavior, the _WORD_ACCESS must be set to 0.
+/  If it is not the case, the value can also be set to 1 to improve the
+/  performance and code size.
+*/
+
+
+/* A header file that defines sync object types on the O/S, such as
+/  windows.h, ucos_ii.h and semphr.h, must be included prior to ff.h. */
+
+#define _FS_REENTRANT	0		/* 0:Disable or 1:Enable */
+#define _FS_TIMEOUT		1000	/* Timeout period in unit of time ticks */
+#define	_SYNC_t			HANDLE	/* O/S dependent type of sync object. e.g. HANDLE, OS_EVENT*, ID and etc.. */
+
+/* The _FS_REENTRANT option switches the reentrancy (thread safe) of the FatFs module.
+/
+/   0: Disable reentrancy. _SYNC_t and _FS_TIMEOUT have no effect.
+/   1: Enable reentrancy. Also user provided synchronization handlers,
+/      ff_req_grant, ff_rel_grant, ff_del_syncobj and ff_cre_syncobj
+/      function must be added to the project. */
+
+
+#define	_FS_LOCK	0	/* 0:Disable or >=1:Enable */
+/* To enable file lock control feature, set _FS_LOCK to 1 or greater.
+   The value defines how many files can be opened simultaneously. */
+
+
+#endif /* _FFCONFIG */
diff --git a/lib/fatfs/integer.h b/lib/fatfs/integer.h
new file mode 100644
index 0000000..f34f56d
--- /dev/null
+++ b/lib/fatfs/integer.h
@@ -0,0 +1,36 @@
+/*-------------------------------------------*/
+/* Integer type definitions for FatFs module */
+/*-------------------------------------------*/
+
+#ifndef _INTEGER
+#define _INTEGER
+
+#ifdef _WIN32	/* FatFs development platform */
+
+#include <windows.h>
+#include <tchar.h>
+
+#else			/* Embedded platform */
+
+/* These types must be 16-bit, 32-bit or larger integer */
+typedef int				INT;
+typedef unsigned int	UINT;
+
+/* These types must be 8-bit integer */
+typedef unsigned char	UCHAR;
+typedef unsigned char	BYTE;
+
+/* These types must be 16-bit integer */
+typedef short			SHORT;
+typedef unsigned short	USHORT;
+typedef unsigned short	WORD;
+typedef unsigned short	WCHAR;
+
+/* These types must be 32-bit integer */
+typedef long			LONG;
+typedef unsigned long	ULONG;
+typedef unsigned long	DWORD;
+
+#endif
+
+#endif