david %!s(int64=15) %!d(string=hai) anos
pai
achega
309e1062b9

+ 12 - 43
snes/fatfstest/Makefile

@@ -29,22 +29,15 @@ LIBS=-L$(SDK)/lib/cl
 #-L$(SDK)/lib/c134
 
 
-<<<<<<< HEAD:snes/fatfstest/Makefile
-OBJS=StartupSnes.obj main.obj pad.obj PPU.obj debug.obj ressource.obj diskio.obj ff.obj
-=======
 OBJS=hook.obj StartupSnes.obj main.obj pad.obj PPU.obj debug.obj ressource.obj diskio.obj ff.obj crc.obj
->>>>>>> c1203c3519d95a92e82a6f2ebf741ad663e46e33:snes/fatfstest/Makefile
 APP=fatfs.smc
 GFX=debugfont
 
-all:  $(APP) repair 
+all:  $(APP)
 
-run:  
+run:
 	$(EMU) $(APP)
 
-debugger:  
-	$(EMU_DEBUG) $(APP)
-
 upload:
 	ucon64 -chk $(APP)
 	cp -rv $(APP) /Volumes/SNES
@@ -55,6 +48,10 @@ disasm: $(APP)
 	rm -rf  fatfs.asm
 	$(DISASM) fatfs.smc >  fatfs.asm 
 
+repair: $(APP)
+	$(UCON) -snes -chk $(APP) 2>&1 >/dev/null
+	rm -rf fatfs.bak
+
 StartupSnes.obj: StartupSnes.asm
 	$(AS) -V $?
 
@@ -65,45 +62,17 @@ hook.obj: hook.asm
 	$(AS) -V $?
 
 %.obj: %.c
-<<<<<<< HEAD:snes/fatfstest/Makefile
 	$(CC)  -wl -wp -sop -ML -I $(INC) $?
 
-#$(APP): $(OBJS)
-#		$(LD) -HB -M21 -V -T -Pff \
-#                -C008000,0000 -U0000,0000 \
-#                -Avectors=FFE4,7FE4 \
-#                -Aregistration_data=FFB0,7FB0 \
-#		 -Aressource=18000,8000 \
-#                -N $(OBJS) $(LIBS) -O $@
-
-$(APP): $(OBJS) hook.obj
+$(APP): $(OBJS) 
+	echo "test"
 	$(LD) -B -HB -M21 -V -T -Pff \
         -C3e8000,1f0000 -U000000,000000 \
         -Avectors=FFE4,7FE4 \
         -Aregistration_data=FFB0,7FB0 \
-        -Aressource=3f8000,1f8000 \
-	-Ahook=008000,0000 \
-        -N $(OBJS) hook.obj $(LIBS) -O $@
-
-
-repair: $(APP)
-	$(UCON) -snes -chk $(APP) 2>&1 >/dev/null
-	rm -rf fatfs.bak
-=======
-		$(CC)  -wl -wp -sop -ML -I $(INC) $?
-
-$(APP): $(OBJS)
-		$(LD) -HB -M21 -V -T -Pff \
-                -C3e8000,1f0000 -U000000,000000 \
-                -Avectors=FFE4,7FE4 \
-                -Aregistration_data=FFB0,7FB0 \
-                -Aressource=18000,8000 \
-                -Ahook=8000,0000 \
-                -N $(OBJS) $(LIBS) -O $@
-		ucon64 -snes -chk $(APP) 2>&1 >/dev/null
->>>>>>> c1203c3519d95a92e82a6f2ebf741ad663e46e33:snes/fatfstest/Makefile
-
-
+        -Aressource=18000,8000 \
+        -Ahook=008000,0000 \
+        -N $(OBJS) $(LIBS) -O $@
 
 clean:
-		rm -vf $(APP) *.obj *.TMP
+	rm -vf $(APP) *.obj *.TMP

+ 79 - 79
snes/fatfstest/PPU.c

@@ -1,80 +1,80 @@
-#include "data.h"
-
-byte tileMapLocation[4];
-word characterLocation[4];
-
-void waitForVBlank(void) {
-	byte Status;
-	do {
-		Status = *(byte*)0x4210;
-	} while (!(Status & 0x80));
-}
-
-void setTileMapLocation(word vramDst, byte screenProp, byte bgNumber) {
-	tileMapLocation[bgNumber] = ((vramDst >> 8) & 0xfc) | ( screenProp & 0x03 );
-	*(byte*) (0x2107+bgNumber) = tileMapLocation[bgNumber];
-}
-
-void restoreTileMapLocation(byte bgNumber) {
-	*(byte*) (0x2107+bgNumber) = tileMapLocation[bgNumber];
-}
-
-void setCharacterLocation(word vramDst, byte bgNumber) {
-	characterLocation[bgNumber] = vramDst;
-	if(bgNumber < 2) {
-		*(byte*) 0x210b = (characterLocation[1] >> 8 & 0xf0 ) + (characterLocation[0] >> 12);
-	} else {
-		*(byte*) 0x210c = (characterLocation[3] >> 8 & 0xf0 ) + (characterLocation[2] >> 12);
-	}
-}
-
-void restoreCharacterLocation(byte bgNumber) {
-	setCharacterLocation(characterLocation[bgNumber], bgNumber);
-}
-
-void VRAMByteWrite(byte value, word vramDst) {
-	*(byte*)0x2115 = 0x80;	
-	*(word*)0x2116 = vramDst;
-
-	*(byte*)0x2118 = value;
-}
-
-void VRAMLoad(word src, word vramDst, word size) {
-	// set address in VRam for read or write ($2116) + block size transfer ($2115)
-	*(byte*)0x2115 = 0x80;
-	*(word*)0x2116 = vramDst;	
-
-	*(word*)0x4300 = 0x1801;	// set DMA control register (1 word inc) 
-								// and destination ($21xx xx -> 0x18)
-	*(word*)0x4302 = src;		// DMA channel x source address offset 
-								// (low $4302 and high $4303 optimisation)
-	*(byte*)0x4304 = 0x01; 		// DMA channel x source address bank
-	*(word*)0x4305 = size;		// DMA channel x transfer size 
-								// (low $4305 and high $4306 optimisation)
-
-	// Turn on DMA transfer for this channel
-	waitForVBlank();
-	*(byte*)0x2100 = 0x80;
-	*(byte*)0x420b = 0x01;
-	*(byte*)0x2100 = 0x00;
-}
-
-void CGRAMLoad(word src, byte cgramDst, word size) {
-	
-	// set address in VRam for read or write + block size
-	*(byte*)0x2121 = cgramDst;
-
-	*(word*)0x4300 = 0x2200;	// set DMA control register (1 byte inc) 
-								// and destination ($21xx xx -> 022)
-	*(word*)0x4302 = src;		// DMA channel x source address offset
-								// (low $4302 and high $4303 optimisation)
-	*(byte*)0x4304 = 0x01; 		// DMA channel x source address bank
-	*(word*)0x4305 = size;		// DMA channel x transfer size
-								// (low $4305 and high $4306 optimisation)
-
-	// Turn on DMA transfer for this channel
-	waitForVBlank();
-	*(byte*)0x2100 = 0x80;
-	*(byte*)0x420b = 0x01;
-	*(byte*)0x2100 = 0x00;
+#include "data.h"
+
+byte tileMapLocation[4];
+word characterLocation[4];
+
+void waitForVBlank(void) {
+	byte Status;
+	do {
+		Status = *(byte*)0x4210;
+	} while (!(Status & 0x80));
+}
+
+void setTileMapLocation(word vramDst, byte screenProp, byte bgNumber) {
+	tileMapLocation[bgNumber] = ((vramDst >> 8) & 0xfc) | ( screenProp & 0x03 );
+	*(byte*) (0x2107+bgNumber) = tileMapLocation[bgNumber];
+}
+
+void restoreTileMapLocation(byte bgNumber) {
+	*(byte*) (0x2107+bgNumber) = tileMapLocation[bgNumber];
+}
+
+void setCharacterLocation(word vramDst, byte bgNumber) {
+	characterLocation[bgNumber] = vramDst;
+	if(bgNumber < 2) {
+		*(byte*) 0x210b = (characterLocation[1] >> 8 & 0xf0 ) + (characterLocation[0] >> 12);
+	} else {
+		*(byte*) 0x210c = (characterLocation[3] >> 8 & 0xf0 ) + (characterLocation[2] >> 12);
+	}
+}
+
+void restoreCharacterLocation(byte bgNumber) {
+	setCharacterLocation(characterLocation[bgNumber], bgNumber);
+}
+
+void VRAMByteWrite(byte value, word vramDst) {
+	*(byte*)0x2115 = 0x80;	
+	*(word*)0x2116 = vramDst;
+
+	*(byte*)0x2118 = value;
+}
+
+void VRAMLoad(word src, word vramDst, word size) {
+	// set address in VRam for read or write ($2116) + block size transfer ($2115)
+	*(byte*)0x2115 = 0x80;
+	*(word*)0x2116 = vramDst;	
+
+	*(word*)0x4300 = 0x1801;	// set DMA control register (1 word inc) 
+								// and destination ($21xx xx -> 0x18)
+	*(word*)0x4302 = src;		// DMA channel x source address offset 
+								// (low $4302 and high $4303 optimisation)
+	*(byte*)0x4304 = 0x01; 		// DMA channel x source address bank
+	*(word*)0x4305 = size;		// DMA channel x transfer size 
+								// (low $4305 and high $4306 optimisation)
+
+	// Turn on DMA transfer for this channel
+	waitForVBlank();
+	*(byte*)0x2100 = 0x80;
+	*(byte*)0x420b = 0x01;
+	*(byte*)0x2100 = 0x00;
+}
+
+void CGRAMLoad(word src, byte cgramDst, word size) {
+	
+	// set address in VRam for read or write + block size
+	*(byte*)0x2121 = cgramDst;
+
+	*(word*)0x4300 = 0x2200;	// set DMA control register (1 byte inc) 
+								// and destination ($21xx xx -> 022)
+	*(word*)0x4302 = src;		// DMA channel x source address offset
+								// (low $4302 and high $4303 optimisation)
+	*(byte*)0x4304 = 0x01; 		// DMA channel x source address bank
+	*(word*)0x4305 = size;		// DMA channel x transfer size
+								// (low $4305 and high $4306 optimisation)
+
+	// Turn on DMA transfer for this channel
+	waitForVBlank();
+	*(byte*)0x2100 = 0x80;
+	*(byte*)0x420b = 0x01;
+	*(byte*)0x2100 = 0x00;
 }

+ 11 - 11
snes/fatfstest/PPU.h

@@ -1,11 +1,11 @@
-extern byte tileMapLocation[4];
-extern word characterLocation[4];
-
-void waitForVBlank(void);
-void setTileMapLocation(word vramDst, byte screenProp, byte bgNumber);
-void restoreTileMapLocation(byte bgNumber);
-void setCharacterLocation(word vramDst, byte bgNumber);
-void restoreCharacterLocation(byte bgNumber);
-void VRAMByteWrite(byte value, word vramDst);
-void VRAMLoad(word src, word vramDst, word size);
-void CGRAMLoad(word src, byte cgramDst, word size);
+extern byte tileMapLocation[4];
+extern word characterLocation[4];
+
+void waitForVBlank(void);
+void setTileMapLocation(word vramDst, byte screenProp, byte bgNumber);
+void restoreTileMapLocation(byte bgNumber);
+void setCharacterLocation(word vramDst, byte bgNumber);
+void restoreCharacterLocation(byte bgNumber);
+void VRAMByteWrite(byte value, word vramDst);
+void VRAMLoad(word src, word vramDst, word size);
+void CGRAMLoad(word src, byte cgramDst, word size);

+ 3 - 1
snes/fatfstest/config.h

@@ -4,7 +4,9 @@
 #define CMD_WRITE       0x02
 #define CMD_NONE        0xff
 
-/* Memory Map */
+/*
+ * Memory Map 
+ */
 #define MMIO_CMD        0x3010
 #define MMIO_SECTOR01   0x3011
 #define MMIO_SECTOR02   0x3012

+ 2 - 3
snes/fatfstest/crc.h

@@ -1,4 +1,3 @@
 
-word crc_update (byte *data, word size);
-word crc_update_mem (unsigned long, word size);
-
+word crc_update(byte * data, word size);
+word crc_update_mem(unsigned long, word size);

+ 8 - 8
snes/fatfstest/data.h

@@ -1,8 +1,8 @@
-
-#ifndef _DATA
-
-typedef	unsigned char	byte;
-typedef	unsigned short	word;
-
-#define _DATA
-#endif
+
+#ifndef _DATA
+
+typedef unsigned char byte;
+typedef unsigned short word;
+
+#define _DATA
+#endif

+ 185 - 185
snes/fatfstest/debug.c

@@ -1,185 +1,185 @@
-#include <string.h>
-#include <stdarg.h>
-#include <fcntl.h>
-
-#include "debug.h"
-#include "data.h"
-#include "pad.h"
-#include "PPU.h"
-#include "ressource.h"
-
-
-
-
-word debugMap[0x400];
-static char debug_buffer[512];
-static char screen_buffer[512];
-
-
-void debug_init(void) {
-	word i;
-	for(i=0; i<0x400; i++) {
-		debugMap[i] = 0x00;
-	}
-    memset(debug_buffer,0,255);
-}
-
-
-void debug_enable(void){
-	VRAMLoad((word) debugFont_pic, 0x5000, 2048);
-	VRAMLoad((word) debugMap, 0x4000, 0x0800);
-	setTileMapLocation(0x4000, (byte) 0x00, (byte) 0);
-	setCharacterLocation(0x5000, (byte) 0);
-	*(byte*) 0x2100 = 0x0f; // enable background
-
-    // hex(24 << 10 | 24 << 5 | 24 )
-    // '0x6318'
-
-    *(byte*) 0x2121 = 0x00;
-    *(byte*) 0x2122 = 0x18;
-    *(byte*) 0x2122 = 0x63;
-
-
-}
-
-void clears(void) {
-    word i,y;
-    for(y=0; y<20; y++){
-      waitForVBlank();
-      for(i=0; i<32; i++){
-        *(byte*)0x2115 = 0x80;
-        *(word*)0x2116 = 0x4000+i+(y*0x20);
-        *(byte*)0x2118 = 0;
-      }
-  }
-}
-
-void _print_char(word y,word x,  char c){
-  waitForVBlank();
-  VRAMByteWrite((byte) (c-32), (word) (0x4000+x+(y*0x20)));
-}
-
-void _print_screen(word y, char *buffer){
-    char l;
-    char x = 0;
-    l = strlen(buffer);
-    waitForVBlank();
-    while(*buffer){
-        if (*buffer == '\n' ) {
-            while(x++<32){
-              *(byte*)0x2115 = 0x80;
-              *(word*)0x2116 = 0x4000+x+(y*0x20);
-              *(byte*)0x2118 = 0;
-            }
-            x = 0;
-            y++;
-            buffer++;
-            waitForVBlank();
-            continue;
-        }
-        *(byte*)0x2115 = 0x80;
-        *(word*)0x2116 = 0x4000+x+(y*0x20);
-        *(byte*)0x2118 = *buffer-32;
-        x++;
-        buffer++;
-        //waitForVBlank();
-    }
-}
-void _print_console(const char *buffer){
-    while(*buffer)
-        *(byte*) 0x3000=*buffer++;
-}
-
-
-
-
-void printfc(char *fmt,...){
-  va_list ap;
-  va_start(ap,fmt);
-  vsprintf(debug_buffer,fmt,ap);
-  va_end(ap);
-  _print_console(debug_buffer);
-  //memset(debug_buffer,0,255);
-
-}
-
-void printfs(word y,char *fmt,...){
-  va_list ap;
-  va_start(ap,fmt);
-  vsprintf(screen_buffer,fmt,ap);
-  va_end(ap);
-  _print_screen(y,screen_buffer);
-  memset(screen_buffer,0,255);
-}
-
-void printc_packet(unsigned long addr,unsigned int len,byte *packet){
-	unsigned int i,j;
-	unsigned int sum = 0;
-	unsigned int clear=0;
-	
-	for (i=0;i<len;i+=16) {
-		
-		sum = 0;
-		for (j=0;j<16;j++) {
-			sum +=packet[i+j];
-		}
-		if (!sum){
-			clear=1;
-			continue;
-		}
-		if (clear){
-			printfc("*\n");
-			clear = 0;
-		}	
-		printfc("%lx:", addr + i);
-		for (j=0;j<16;j++) {
-			printfc(" %x", packet[i+j]);
-		}
-		printfc(" |");
-		for (j=0;j<16;j++) {
-			if (packet[i+j]>=33 && packet[i+j]<=126 )
-				printfc("%c", packet[i+j]);
-			else
-				printfc(".");
-		}
-		printfc("|\n");
-	}
-}
-
-/* keep the linker happy */
-int open(const char * _name, int _mode){
-    _print_console("open called\n");
-    return -1;
-}
-
-int close(int fd){
-    _print_console("close called\n");
-    return -1;
-    
-} 
-
-size_t read(int fd, void * buff, size_t len){
-    _print_console("read called\n");
-    return 0;
-} 
-
-size_t write(int fd, void * buffer, size_t len){
-    _print_console("write called\n");
-    return 0;
-}
-
-long lseek(int fd, long off, int count){
-    _print_console("lseek called\n");
-    return 0;
-} 
-
-int unlink(const char * name){
-    _print_console("unlink called\n");
-    return -1;
-}
-
-int isatty(){
-    _print_console("isatty called\n");
-    return 1;
-}
-
+#include <string.h>
+#include <stdarg.h>
+#include <fcntl.h>
+
+#include "debug.h"
+#include "data.h"
+#include "pad.h"
+#include "PPU.h"
+#include "ressource.h"
+
+
+
+
+word debugMap[0x400];
+static char debug_buffer[512];
+static char screen_buffer[512];
+
+
+void debug_init(void) {
+	word i;
+	for(i=0; i<0x400; i++) {
+		debugMap[i] = 0x00;
+	}
+    memset(debug_buffer,0,255);
+}
+
+
+void debug_enable(void){
+	VRAMLoad((word) debugFont_pic, 0x5000, 2048);
+	VRAMLoad((word) debugMap, 0x4000, 0x0800);
+	setTileMapLocation(0x4000, (byte) 0x00, (byte) 0);
+	setCharacterLocation(0x5000, (byte) 0);
+	*(byte*) 0x2100 = 0x0f; // enable background
+
+    // hex(24 << 10 | 24 << 5 | 24 )
+    // '0x6318'
+
+    *(byte*) 0x2121 = 0x00;
+    *(byte*) 0x2122 = 0x18;
+    *(byte*) 0x2122 = 0x63;
+
+
+}
+
+void clears(void) {
+    word i,y;
+    for(y=0; y<20; y++){
+      waitForVBlank();
+      for(i=0; i<32; i++){
+        *(byte*)0x2115 = 0x80;
+        *(word*)0x2116 = 0x4000+i+(y*0x20);
+        *(byte*)0x2118 = 0;
+      }
+  }
+}
+
+void _print_char(word y,word x,  char c){
+  waitForVBlank();
+  VRAMByteWrite((byte) (c-32), (word) (0x4000+x+(y*0x20)));
+}
+
+void _print_screen(word y, char *buffer){
+    char l;
+    char x = 0;
+    l = strlen(buffer);
+    waitForVBlank();
+    while(*buffer){
+        if (*buffer == '\n' ) {
+            while(x++<32){
+              *(byte*)0x2115 = 0x80;
+              *(word*)0x2116 = 0x4000+x+(y*0x20);
+              *(byte*)0x2118 = 0;
+            }
+            x = 0;
+            y++;
+            buffer++;
+            waitForVBlank();
+            continue;
+        }
+        *(byte*)0x2115 = 0x80;
+        *(word*)0x2116 = 0x4000+x+(y*0x20);
+        *(byte*)0x2118 = *buffer-32;
+        x++;
+        buffer++;
+        //waitForVBlank();
+    }
+}
+void _print_console(const char *buffer){
+    while(*buffer)
+        *(byte*) 0x3000=*buffer++;
+}
+
+
+
+
+void printfc(char *fmt,...){
+  va_list ap;
+  va_start(ap,fmt);
+  vsprintf(debug_buffer,fmt,ap);
+  va_end(ap);
+  _print_console(debug_buffer);
+  //memset(debug_buffer,0,255);
+
+}
+
+void printfs(word y,char *fmt,...){
+  va_list ap;
+  va_start(ap,fmt);
+  vsprintf(screen_buffer,fmt,ap);
+  va_end(ap);
+  _print_screen(y,screen_buffer);
+  memset(screen_buffer,0,255);
+}
+
+void printc_packet(unsigned long addr,unsigned int len,byte *packet){
+	unsigned int i,j;
+	unsigned int sum = 0;
+	unsigned int clear=0;
+	
+	for (i=0;i<len;i+=16) {
+		
+		sum = 0;
+		for (j=0;j<16;j++) {
+			sum +=packet[i+j];
+		}
+		if (!sum){
+			clear=1;
+			continue;
+		}
+		if (clear){
+			printfc("*\n");
+			clear = 0;
+		}	
+		printfc("%lx:", addr + i);
+		for (j=0;j<16;j++) {
+			printfc(" %x", packet[i+j]);
+		}
+		printfc(" |");
+		for (j=0;j<16;j++) {
+			if (packet[i+j]>=33 && packet[i+j]<=126 )
+				printfc("%c", packet[i+j]);
+			else
+				printfc(".");
+		}
+		printfc("|\n");
+	}
+}
+
+/* keep the linker happy */
+int open(const char * _name, int _mode){
+    _print_console("open called\n");
+    return -1;
+}
+
+int close(int fd){
+    _print_console("close called\n");
+    return -1;
+    
+} 
+
+size_t read(int fd, void * buff, size_t len){
+    _print_console("read called\n");
+    return 0;
+} 
+
+size_t write(int fd, void * buffer, size_t len){
+    _print_console("write called\n");
+    return 0;
+}
+
+long lseek(int fd, long off, int count){
+    _print_console("lseek called\n");
+    return 0;
+} 
+
+int unlink(const char * name){
+    _print_console("unlink called\n");
+    return -1;
+}
+
+int isatty(){
+    _print_console("isatty called\n");
+    return 1;
+}
+

+ 8 - 9
snes/fatfstest/debug.h

@@ -1,9 +1,8 @@
-#include "data.h"
-
-void debug_init(void);
-void debug_enable(void);
-void printfs(word y,char* fmt,...);
-void printfc(char* fmt,...);
-void clears(void);
-void printc_packet(unsigned long addr,unsigned int len,byte *packet);
-
+#include "data.h"
+
+void debug_init(void);
+void debug_enable(void);
+void printfs(word y, char *fmt, ...);
+void printfc(char *fmt, ...);
+void clears(void);
+void printc_packet(unsigned long addr, unsigned int len, byte * packet);

+ 199 - 199
snes/fatfstest/diskio.c

@@ -1,199 +1,199 @@
-
-#include "integer.h"
-#include "diskio.h"
-#include "config.h"
-#include "data.h"
-#include "debug.h"
-
-
-
-/* Interface
-** Scratch Buffer
-addr        3 byte            
-size        1 byte
-
-** Call Interface
-cmd         1 byte
-sector      4 bytes
-count       1 byte
-return      1 byte
-
-** Commands
-    * disk_init
-    * disk_read
-    * disk_write
-*/ 
-
-/*-----------------------------------------------------------------------*/
-/* Initialize Disk Drive                                                 */
-/*-----------------------------------------------------------------------*/
-
-#include <string.h>
-
-
-// TODO: Figure out gobal vars ?!?
-
-DSTATUS Stat = 0 ; //STA_NOINIT;  /* Disk status */
-
-
-DSTATUS disk_initialize (BYTE drv) {
-    
-    byte retval;
-    #ifdef MMIO_DEBUG
-    printfc("SNES::disk_initialize called drv=%i stat=%i\n",drv,Stat);
-    #endif
-    if (drv) return STA_NOINIT;             /* Supports only single drive */
-    Stat |= STA_NOINIT;
-    #ifdef MMIO_DEBUG
-    printfc("SNES::disk_initialize stat=%i\n",Stat);
-    #endif
-    *(byte*) MMIO_RETVAL = STA_VOID;
-    *(byte*) MMIO_CMD = CMD_INIT;    
-    #ifdef MMIO_DEBUG
-    printfc("SNES::disk_initialize poll retval\n");
-    #endif
-    while((retval = *(byte*) MMIO_RETVAL) == STA_VOID);
-    Stat &= ~STA_NOINIT;                    /* When device goes ready, clear STA_NOINIT */
-    #ifdef MMIO_DEBUG
-    printfc("SNES::disk_initialize done Stat=%i\n",Stat);
-    #endif
-    return Stat;
-}
-
-
-/*-----------------------------------------------------------------------*/
-/* Return Disk Status                                                    */
-/*-----------------------------------------------------------------------*/
-
-DSTATUS disk_status (BYTE drv){
-    if (drv) return STA_NOINIT;     /* Supports only single drive */
-    return Stat;
-}
-
-
-/*-----------------------------------------------------------------------*/
-/* Read Sector(s)                                                        */
-/*-----------------------------------------------------------------------*/
-
-DRESULT disk_read (
-    BYTE drv,       /* Physical drive nmuber (0) */
-    BYTE *buff,     /* Data buffer to store read data */
-    DWORD sector,   /* Sector number (LBA) */
-    BYTE count      /* Sector count (1..255) */
-)
-{
-    DWORD offset;
-    INT size;
-    byte retval;
-    word i;
-    
-    //#ifdef MMIO_DEBUG
-    printfc("SNES::disk_read called sector=%li count=%i\n",sector,count);
-    //#endif
-    if (drv || !count) return RES_PARERR;
-    #ifdef MMIO_DEBUG
-    printfc("SNES::disk_read drv ok\n");
-    #endif
-    if (Stat & STA_NOINIT) return RES_NOTRDY;
-    #ifdef MMIO_DEBUG
-    printfc("SNES::disk_read sta ok\n");
-    #endif
-
-    *(byte*) MMIO_RETVAL = STA_VOID;
-    *(byte*) MMIO_CMD = CMD_READ;    
-    
-    *(byte*) MMIO_SECTOR01 = (sector >> 24) & 0xff;    
-    *(byte*) MMIO_SECTOR02 = (sector >> 16) & 0xff;    
-    *(byte*) MMIO_SECTOR03 = (sector >> 8) & 0xff;
-    *(byte*) MMIO_SECTOR04 = (sector) & 0xff;
-    
-    *(byte*) MMIO_COUNT = count;    
-
-    #ifdef MMIO_DEBUG
-    printfc("SNES::disk_read poll retval\n");
-    #endif
-    while((retval = *(byte*) MMIO_RETVAL) == STA_VOID);
-    
-    
-    #ifdef MMIO_DEBUG
-    printfc("SNES::disk_read copy buffer to %06lx\n",SHARED_ADDR);
-    #endif
-    for (i=0;i<(count*512);i++){
-        buff[i]  = *(byte*)(SHARED_ADDR+i);
-        #ifdef MMIO_DEBUG
-        if ( i < 8)
-          printfc("0x%02x ",buff[i]);
-        #endif
-    }
-    #ifdef MMIO_DEBUG
-    printfc("\n");
-    #endif
-    return retval;
-}
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Write Sector(s)                                                       */
-/*-----------------------------------------------------------------------*/
-
-#if _READONLY == 0
-DRESULT disk_write (
-    BYTE drv,           /* Physical drive nmuber (0) */
-    const BYTE *buff,   /* Data to be written */
-    DWORD sector,       /* Sector number (LBA) */
-    BYTE count          /* Sector count (1..255) */
-)
-{
-    DWORD offset;
-    INT size;
-
-    if (drv || !count) return RES_PARERR;
-    if (Stat & STA_NOINIT) return RES_NOTRDY;
-
-    offset = sector  * 512;
-    size = count * 512;
-    return RES_OK;
-}
-#endif /* _READONLY */
-
-/*-----------------------------------------------------------------------*/
-/* Miscellaneous Functions                                               */
-/*-----------------------------------------------------------------------*/
-
-#if _USE_IOCTL != 0
-DRESULT disk_ioctl (
-    BYTE drv,       /* Physical drive nmuber (0) */
-    BYTE ctrl,      /* Control code */
-    void *buff      /* Buffer to send/receive data block */
-)
-{
-    BYTE n, w, ofs, dl, dh, *ptr = (BYTE*)buff;
-
-
-    if (drv) return RES_PARERR;
-    if (Stat & STA_NOINIT) return RES_NOTRDY;
-
-    switch (ctrl) {
-        case GET_SECTOR_COUNT : /* Get number of sectors on the disk (DWORD) */
-            ofs = 60; w = 2; n = 0;
-            break;
-
-        case GET_SECTOR_SIZE :  /* Get sectors on the disk (WORD) */
-            *(WORD*)buff = 512;
-            return RES_OK;
-
-        case GET_BLOCK_SIZE :   /* Get erase block size in sectors (DWORD) */
-            *(DWORD*)buff = 32;
-            return RES_OK;
-
-        default:
-            return RES_PARERR;
-    }
-    return RES_OK;
-}
-#endif /* _USE_IOCTL != 0 */
-
-
-
-
+
+#include "integer.h"
+#include "diskio.h"
+#include "config.h"
+#include "data.h"
+#include "debug.h"
+
+
+
+/* Interface
+** Scratch Buffer
+addr        3 byte            
+size        1 byte
+
+** Call Interface
+cmd         1 byte
+sector      4 bytes
+count       1 byte
+return      1 byte
+
+** Commands
+    * disk_init
+    * disk_read
+    * disk_write
+*/ 
+
+/*-----------------------------------------------------------------------*/
+/* Initialize Disk Drive                                                 */
+/*-----------------------------------------------------------------------*/
+
+#include <string.h>
+
+
+// TODO: Figure out gobal vars ?!?
+
+DSTATUS Stat = 0 ; //STA_NOINIT;  /* Disk status */
+
+
+DSTATUS disk_initialize (BYTE drv) {
+    
+    byte retval;
+    #ifdef MMIO_DEBUG
+    printfc("SNES::disk_initialize called drv=%i stat=%i\n",drv,Stat);
+    #endif
+    if (drv) return STA_NOINIT;             /* Supports only single drive */
+    Stat |= STA_NOINIT;
+    #ifdef MMIO_DEBUG
+    printfc("SNES::disk_initialize stat=%i\n",Stat);
+    #endif
+    *(byte*) MMIO_RETVAL = STA_VOID;
+    *(byte*) MMIO_CMD = CMD_INIT;    
+    #ifdef MMIO_DEBUG
+    printfc("SNES::disk_initialize poll retval\n");
+    #endif
+    while((retval = *(byte*) MMIO_RETVAL) == STA_VOID);
+    Stat &= ~STA_NOINIT;                    /* When device goes ready, clear STA_NOINIT */
+    #ifdef MMIO_DEBUG
+    printfc("SNES::disk_initialize done Stat=%i\n",Stat);
+    #endif
+    return Stat;
+}
+
+
+/*-----------------------------------------------------------------------*/
+/* Return Disk Status                                                    */
+/*-----------------------------------------------------------------------*/
+
+DSTATUS disk_status (BYTE drv){
+    if (drv) return STA_NOINIT;     /* Supports only single drive */
+    return Stat;
+}
+
+
+/*-----------------------------------------------------------------------*/
+/* Read Sector(s)                                                        */
+/*-----------------------------------------------------------------------*/
+
+DRESULT disk_read (
+    BYTE drv,       /* Physical drive nmuber (0) */
+    BYTE *buff,     /* Data buffer to store read data */
+    DWORD sector,   /* Sector number (LBA) */
+    BYTE count      /* Sector count (1..255) */
+)
+{
+    DWORD offset;
+    INT size;
+    byte retval;
+    word i;
+    
+    //#ifdef MMIO_DEBUG
+    printfc("SNES::disk_read called sector=%li count=%i\n",sector,count);
+    //#endif
+    if (drv || !count) return RES_PARERR;
+    #ifdef MMIO_DEBUG
+    printfc("SNES::disk_read drv ok\n");
+    #endif
+    if (Stat & STA_NOINIT) return RES_NOTRDY;
+    #ifdef MMIO_DEBUG
+    printfc("SNES::disk_read sta ok\n");
+    #endif
+
+    *(byte*) MMIO_RETVAL = STA_VOID;
+    *(byte*) MMIO_CMD = CMD_READ;    
+    
+    *(byte*) MMIO_SECTOR01 = (sector >> 24) & 0xff;    
+    *(byte*) MMIO_SECTOR02 = (sector >> 16) & 0xff;    
+    *(byte*) MMIO_SECTOR03 = (sector >> 8) & 0xff;
+    *(byte*) MMIO_SECTOR04 = (sector) & 0xff;
+    
+    *(byte*) MMIO_COUNT = count;    
+
+    #ifdef MMIO_DEBUG
+    printfc("SNES::disk_read poll retval\n");
+    #endif
+    while((retval = *(byte*) MMIO_RETVAL) == STA_VOID);
+    
+    
+    #ifdef MMIO_DEBUG
+    printfc("SNES::disk_read copy buffer to %06lx\n",SHARED_ADDR);
+    #endif
+    for (i=0;i<(count*512);i++){
+        buff[i]  = *(byte*)(SHARED_ADDR+i);
+        #ifdef MMIO_DEBUG
+        if ( i < 8)
+          printfc("0x%02x ",buff[i]);
+        #endif
+    }
+    #ifdef MMIO_DEBUG
+    printfc("\n");
+    #endif
+    return retval;
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Write Sector(s)                                                       */
+/*-----------------------------------------------------------------------*/
+
+#if _READONLY == 0
+DRESULT disk_write (
+    BYTE drv,           /* Physical drive nmuber (0) */
+    const BYTE *buff,   /* Data to be written */
+    DWORD sector,       /* Sector number (LBA) */
+    BYTE count          /* Sector count (1..255) */
+)
+{
+    DWORD offset;
+    INT size;
+
+    if (drv || !count) return RES_PARERR;
+    if (Stat & STA_NOINIT) return RES_NOTRDY;
+
+    offset = sector  * 512;
+    size = count * 512;
+    return RES_OK;
+}
+#endif /* _READONLY */
+
+/*-----------------------------------------------------------------------*/
+/* Miscellaneous Functions                                               */
+/*-----------------------------------------------------------------------*/
+
+#if _USE_IOCTL != 0
+DRESULT disk_ioctl (
+    BYTE drv,       /* Physical drive nmuber (0) */
+    BYTE ctrl,      /* Control code */
+    void *buff      /* Buffer to send/receive data block */
+)
+{
+    BYTE n, w, ofs, dl, dh, *ptr = (BYTE*)buff;
+
+
+    if (drv) return RES_PARERR;
+    if (Stat & STA_NOINIT) return RES_NOTRDY;
+
+    switch (ctrl) {
+        case GET_SECTOR_COUNT : /* Get number of sectors on the disk (DWORD) */
+            ofs = 60; w = 2; n = 0;
+            break;
+
+        case GET_SECTOR_SIZE :  /* Get sectors on the disk (WORD) */
+            *(WORD*)buff = 512;
+            return RES_OK;
+
+        case GET_BLOCK_SIZE :   /* Get erase block size in sectors (DWORD) */
+            *(DWORD*)buff = 32;
+            return RES_OK;
+
+        default:
+            return RES_PARERR;
+    }
+    return RES_OK;
+}
+#endif /* _USE_IOCTL != 0 */
+
+
+
+

+ 83 - 71
snes/fatfstest/diskio.h

@@ -1,71 +1,83 @@
-/*-----------------------------------------------------------------------
-/  Low level disk interface modlue include file  R0.05   (C)ChaN, 2007
-/-----------------------------------------------------------------------*/
-
-
- #ifdef __cplusplus
- extern "C" {
- #endif 
-
-#ifndef _DISKIO
-
-#define _READONLY	0	/* 1: Read-only mode */
-#define _USE_IOCTL	1
-
-#include "integer.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;
-
-
-/*---------------------------------------*/
-/* Prototypes for disk control functions */
-
-DSTATUS disk_initialize (BYTE);
-DSTATUS disk_status (BYTE);
-DRESULT disk_read (BYTE, BYTE*, DWORD, BYTE);
-#if	_READONLY == 0
-DRESULT disk_write (BYTE, const BYTE*, DWORD, BYTE);
-#endif
-DRESULT disk_ioctl (BYTE, BYTE, void*);
-void	disk_timerproc (void);
-
-
-
-
-/* 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 */
-#define STA_VOID        0xff
-
-
-/* Command code for disk_ioctrl() */
-
-/* Generic command */
-#define CTRL_SYNC			0	/* Mandatory for write functions */
-#define GET_SECTOR_COUNT	1	/* Mandatory for only f_mkfs() */
-#define GET_SECTOR_SIZE		2
-#define GET_BLOCK_SIZE		3	/* Mandatory for only f_mkfs() */
-#define CTRL_POWER			4
-#define CTRL_LOCK			5
-#define CTRL_EJECT			6
-
-#define _DISKIO
-#endif
-
-
- #ifdef __cplusplus
- }
- #endif 
+/*-----------------------------------------------------------------------
+/  Low level disk interface modlue include file  R0.05   (C)ChaN, 2007
+/-----------------------------------------------------------------------*/
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _DISKIO
+
+#define _READONLY	0       /* 1: Read-only mode */
+#define _USE_IOCTL	1
+
+#include "integer.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;
+
+
+/*---------------------------------------*/
+    /*
+     * Prototypes for disk control functions 
+     */
+
+    DSTATUS disk_initialize(BYTE);
+    DSTATUS disk_status(BYTE);
+    DRESULT disk_read(BYTE, BYTE *, DWORD, BYTE);
+#if	_READONLY == 0
+    DRESULT disk_write(BYTE, const BYTE *, DWORD, BYTE);
+#endif
+    DRESULT disk_ioctl(BYTE, BYTE, void *);
+    void disk_timerproc(void);
+
+
+
+
+    /*
+     * 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 */
+#define STA_VOID        0xff
+
+
+    /*
+     * Command code for disk_ioctrl() 
+     */
+
+    /*
+     * Generic command 
+     */
+#define CTRL_SYNC			0       /* Mandatory for write functions */
+#define GET_SECTOR_COUNT	1       /* Mandatory for only f_mkfs() */
+#define GET_SECTOR_SIZE		2
+#define GET_BLOCK_SIZE		3       /* Mandatory for only f_mkfs() */
+#define CTRL_POWER			4
+#define CTRL_LOCK			5
+#define CTRL_EJECT			6
+
+#define _DISKIO
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif

+ 101 - 101
snes/fatfstest/event.c

@@ -1,101 +1,101 @@
-#include <stdlib.h>
-
-#include "data.h";
-#include "event.h";
-
-event *events;
-
-void initEvents(void) {
-	events = NULL;
-}
-
-event *createEvent(char (*callback)(word counter)) {
-	event *myEvent;
-
-	myEvent = (event*) malloc(sizeof(event));
-
-	myEvent->VBlankCount = 0;
-	myEvent->callback = callback;
-	myEvent->nextEvent = NULL;
-	myEvent->previousEvent = NULL;
-
-
-	return myEvent;
-}
-
-event* addEvent(char (*callback)(word counter), int noDuplicateCallback) {
-
-	event *lastEvent;
-	event *myEvent;
-
-	if(events == NULL) {
-		events = createEvent(callback);
-		return events;
-	} else {
-		lastEvent = events;
-		// TODO optimise this with noduplicate
-		while(lastEvent->nextEvent != NULL) {
-			if(noDuplicateCallback == 1 && lastEvent->callback == *callback) {
-				return NULL;
-			}
-			lastEvent = lastEvent->nextEvent;
-		}
-		if(noDuplicateCallback == 1 && lastEvent->callback == *callback) {
-			return NULL;
-		}
-		myEvent = createEvent(callback);
-		myEvent->previousEvent = lastEvent;
-		lastEvent->nextEvent = myEvent;
-		return myEvent;
-	}
-
-
-}
-
-void removeEvent(event *eventElement) {
-
-	byte alone = 0;
-	event *next, *previous;
-
-	next = eventElement->nextEvent;
-	previous = eventElement->previousEvent;
-
-	if(eventElement->nextEvent != NULL && eventElement->previousEvent != NULL) {
-		alone++;
-		next->previousEvent = previous;
-		previous->nextEvent = next;
-
-	} else if(eventElement->nextEvent != NULL) {
-		alone++;
-		next->previousEvent = NULL;
-		events = next;
-
-	} else if(eventElement->previousEvent != NULL) {
-		alone++;
-		previous->nextEvent = NULL;
-	}
-
-	free(eventElement);
-
-	if(alone == 0) {
-		events = NULL;
-	}
-}
-
-void processEvents(void) {
-
-	event *currentEvent;
-	char returnValue;
-
-	currentEvent = events;
-	while(currentEvent != NULL) {
-		returnValue = currentEvent->callback(currentEvent->VBlankCount);
-		if(returnValue == EVENT_CONTINUE) {
-			currentEvent->VBlankCount++;
-		} else {
-			removeEvent(currentEvent);
-		}
-		currentEvent = currentEvent->nextEvent;
-	}
-
-}
+#include <stdlib.h>
+
+#include "data.h";
+#include "event.h";
+
+event *events;
+
+void initEvents(void) {
+	events = NULL;
+}
+
+event *createEvent(char (*callback)(word counter)) {
+	event *myEvent;
+
+	myEvent = (event*) malloc(sizeof(event));
+
+	myEvent->VBlankCount = 0;
+	myEvent->callback = callback;
+	myEvent->nextEvent = NULL;
+	myEvent->previousEvent = NULL;
+
+
+	return myEvent;
+}
+
+event* addEvent(char (*callback)(word counter), int noDuplicateCallback) {
+
+	event *lastEvent;
+	event *myEvent;
+
+	if(events == NULL) {
+		events = createEvent(callback);
+		return events;
+	} else {
+		lastEvent = events;
+		// TODO optimise this with noduplicate
+		while(lastEvent->nextEvent != NULL) {
+			if(noDuplicateCallback == 1 && lastEvent->callback == *callback) {
+				return NULL;
+			}
+			lastEvent = lastEvent->nextEvent;
+		}
+		if(noDuplicateCallback == 1 && lastEvent->callback == *callback) {
+			return NULL;
+		}
+		myEvent = createEvent(callback);
+		myEvent->previousEvent = lastEvent;
+		lastEvent->nextEvent = myEvent;
+		return myEvent;
+	}
+
+
+}
+
+void removeEvent(event *eventElement) {
+
+	byte alone = 0;
+	event *next, *previous;
+
+	next = eventElement->nextEvent;
+	previous = eventElement->previousEvent;
+
+	if(eventElement->nextEvent != NULL && eventElement->previousEvent != NULL) {
+		alone++;
+		next->previousEvent = previous;
+		previous->nextEvent = next;
+
+	} else if(eventElement->nextEvent != NULL) {
+		alone++;
+		next->previousEvent = NULL;
+		events = next;
+
+	} else if(eventElement->previousEvent != NULL) {
+		alone++;
+		previous->nextEvent = NULL;
+	}
+
+	free(eventElement);
+
+	if(alone == 0) {
+		events = NULL;
+	}
+}
+
+void processEvents(void) {
+
+	event *currentEvent;
+	char returnValue;
+
+	currentEvent = events;
+	while(currentEvent != NULL) {
+		returnValue = currentEvent->callback(currentEvent->VBlankCount);
+		if(returnValue == EVENT_CONTINUE) {
+			currentEvent->VBlankCount++;
+		} else {
+			removeEvent(currentEvent);
+		}
+		currentEvent = currentEvent->nextEvent;
+	}
+
+}

+ 17 - 16
snes/fatfstest/event.h

@@ -1,16 +1,17 @@
-typedef struct event{
-	word VBlankCount;
-	char (*callback)(word counter);
-	struct event *previousEvent;
-	struct event *nextEvent;
-} event;
-
-#define EVENT_STOP 0
-#define EVENT_CONTINUE 1
-
-extern event *events;
-
-void initEvents(void);
-extern event* addEvent(char (*callback)(word counter), int noDuplicateCallback);
-extern void removeEvent(event *eventElement);
-extern void processEvents(void);
+typedef struct event {
+    word VBlankCount;
+    char (*callback) (word counter);
+    struct event *previousEvent;
+    struct event *nextEvent;
+} event;
+
+#define EVENT_STOP 0
+#define EVENT_CONTINUE 1
+
+extern event *events;
+
+void initEvents(void);
+extern event *addEvent(char (*callback) (word counter),
+                       int noDuplicateCallback);
+extern void removeEvent(event * eventElement);
+extern void processEvents(void);

+ 2936 - 2936
snes/fatfstest/ff.c

@@ -1,2936 +1,2936 @@
-/*----------------------------------------------------------------------------/
-/  FatFs - FAT file system module  R0.07a                    (C)ChaN, 2009
-/-----------------------------------------------------------------------------/
-/ 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) 2009, 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 use 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) patition.
-/ 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 algolithm 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 plysical 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 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,'09 R0.07a Separated out OS dependent code on reentrant cfg.
-/                   Added multiple sector size support.
-/---------------------------------------------------------------------------*/
-
-#include "ff.h"			/* FatFs configurations and declarations */
-#include "diskio.h"		/* Declarations of low level disk I/O functions */
-#include "debug.h"         /* FatFs configurations and declarations */
-
-
-/*--------------------------------------------------------------------------
-
-   Module Private Definitions
-
----------------------------------------------------------------------------*/
-
-#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); }
-
-#ifndef NULL
-#define	NULL	0
-#endif
-
-
-/*--------------------------------------------------------------------------
-
-   Private Work Area
-
----------------------------------------------------------------------------*/
-
-static
-FATFS *FatFs[_DRIVES];	/* Pointer to the file system objects (logical drives) */
-static
-WORD Fsid;				/* File system mount ID */
-
-
-#if _USE_LFN == 1	/* LFN with static LFN working buffer */
-static
-WORD LfnBuf[_MAX_LFN + 1];
-#define	NAMEBUF(sp,lp)	BYTE sp[12]; WCHAR *lp = LfnBuf
-#define INITBUF(dj,sp,lp)	dj.fn = sp; dj.lfn = lp
-
-#elif _USE_LFN > 1	/* LFN with dynamic LFN working buffer */
-#define	NAMEBUF(sp,lp)	BYTE sp[12]; WCHAR lbuf[_MAX_LFN + 1], *lp = lbuf
-#define INITBUF(dj,sp,lp)	dj.fn = sp; dj.lfn = lp
-
-#else				/* No LFN */
-#define	NAMEBUF(sp,lp)	BYTE sp[12]
-#define INITBUF(dj,sp,lp)	dj.fn = sp
-
-#endif
-
-
-
-
-/*--------------------------------------------------------------------------
-
-   Private Functions
-
----------------------------------------------------------------------------*/
-
-
-/*-----------------------------------------------------------------------*/
-/* String functions                                                      */
-/*-----------------------------------------------------------------------*/
-
-/* Copy memory to memory */
-static
-void mem_cpy (void* dst, const void* src, int cnt) {
-	char *d = (char*)dst;
-	const char *s = (const char *)src;
-	while (cnt--) *d++ = *s++;
-}
-
-/* Fill memory */
-static
-void mem_set (void* dst, int val, int cnt) {
-	char *d = (char*)dst;
-	while (cnt--) *d++ = (char)val;
-}
-
-/* Compare memory to memory */
-static
-int mem_cmp (const void* dst, const void* src, int cnt) {
-	const char *d = (const char *)dst, *s = (const char *)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
-BOOL 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 (res != FR_NOT_ENABLED &&
-		res != FR_INVALID_DRIVE &&
-		res != FR_INVALID_OBJECT &&
-		res != FR_TIMEOUT) {
-		ff_rel_grant(fs->sobj);
-	}
-}
-#endif
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Change window offset                                                  */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT move_window (
-	FATFS *fs,		/* File system object */
-	DWORD sector	/* Sector number to make apperance in the fs->win[] */
-)					/* Move to zero only writes back dirty window */
-{
-	DWORD wsect;
-
-
-	wsect = fs->winsect;
-	if (wsect != sector) {	/* Changed current window */
-#if !_FS_READONLY
-		if (fs->wflag) {	/* Write back dirty window if needed */
-			if (disk_write(fs->drive, fs->win, wsect, 1) != RES_OK)
-				return FR_DISK_ERR;
-			fs->wflag = 0;
-			if (wsect < (fs->fatbase + fs->sects_fat)) {	/* In FAT area */
-				BYTE nf;
-				for (nf = fs->n_fats; nf >= 2; nf--) {	/* Refrect the change to FAT copy */
-					wsect += fs->sects_fat;
-					disk_write(fs->drive, fs->win, wsect, 1);
-				}
-			}
-		}
-#endif
-		if (sector) {
-			if (disk_read(fs->drive, fs->win, sector, 1) != RES_OK)
-				return FR_DISK_ERR;
-			fs->winsect = sector;
-		}
-	}
-
-	return FR_OK;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Clean-up cached data                                                  */
-/*-----------------------------------------------------------------------*/
-#if !_FS_READONLY
-static
-FRESULT sync (	/* FR_OK: successful, FR_DISK_ERR: failed */
-	FATFS *fs	/* File system object */
-)
-{
-	FRESULT res;
-
-
-	res = move_window(fs, 0);
-	if (res == FR_OK) {
-		/* Update FSInfo sector if needed */
-		if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
-			fs->winsect = 0;
-			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);
-			disk_write(fs->drive, 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->drive, CTRL_SYNC, (void*)NULL) != RES_OK)
-			res = FR_DISK_ERR;
-	}
-
-	return res;
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Get a cluster status                                                  */
-/*-----------------------------------------------------------------------*/
-
-static
-DWORD get_cluster (	/* 0xFFFFFFFF:Disk error, 1:Interal error, Else:Cluster status */
-	FATFS *fs,		/* File system object */
-	DWORD clst		/* Cluster# to get the link information */
-)
-{
-	WORD wc, bc;
-	DWORD fsect;
-
-
-	if (clst < 2 || clst >= fs->max_clust)	/* Check cluster address range */
-		return 1;
-
-	fsect = fs->fatbase;
-	switch (fs->fs_type) {
-	case FS_FAT12 :
-		bc = (WORD)clst * 3 / 2;
-		if (move_window(fs, fsect + (bc / SS(fs)))) break;
-		wc = fs->win[bc & (SS(fs) - 1)]; bc++;
-		if (move_window(fs, fsect + (bc / SS(fs)))) break;
-		wc |= (WORD)fs->win[bc & (SS(fs) - 1)] << 8;
-		return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
-
-	case FS_FAT16 :
-		if (move_window(fs, fsect + (clst / (SS(fs) / 2)))) break;
-		return LD_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)]);
-
-	case FS_FAT32 :
-		if (move_window(fs, fsect + (clst / (SS(fs) / 4)))) break;
-		return LD_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)]) & 0x0FFFFFFF;
-	}
-
-	return 0xFFFFFFFF;	/* An error occured at the disk I/O layer */
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Change a cluster status                                               */
-/*-----------------------------------------------------------------------*/
-#if !_FS_READONLY
-static
-FRESULT put_cluster (
-	FATFS *fs,		/* File system object */
-	DWORD clst,		/* Cluster# to be changed (must be 2 to fs->max_clust-1) */
-	DWORD val		/* New value to mark the cluster */
-)
-{
-	WORD bc;
-	BYTE *p;
-	DWORD fsect;
-	FRESULT res;
-
-
-	if (clst < 2 || clst >= fs->max_clust) {	/* Check cluster address range */
-		res = FR_INT_ERR;
-
-	} else {
-		fsect = fs->fatbase;
-		switch (fs->fs_type) {
-		case FS_FAT12 :
-			bc = (WORD)clst * 3 / 2;
-			res = move_window(fs, fsect + (bc / SS(fs)));
-			if (res != FR_OK) break;
-			p = &fs->win[bc & (SS(fs) - 1)];
-			*p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val;
-			bc++;
-			fs->wflag = 1;
-			res = move_window(fs, fsect + (bc / SS(fs)));
-			if (res != FR_OK) break;
-			p = &fs->win[bc & (SS(fs) - 1)];
-			*p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F));
-			break;
-
-		case FS_FAT16 :
-			res = move_window(fs, fsect + (clst / (SS(fs) / 2)));
-			if (res != FR_OK) break;
-			ST_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)], (WORD)val);
-			break;
-
-		case FS_FAT32 :
-			res = move_window(fs, fsect + (clst / (SS(fs) / 4)));
-			if (res != FR_OK) break;
-			ST_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)], val);
-			break;
-
-		default :
-			res = FR_INT_ERR;
-		}
-		fs->wflag = 1;
-	}
-
-	return res;
-}
-#endif /* !_FS_READONLY */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Remove a cluster chain                                                */
-/*-----------------------------------------------------------------------*/
-#if !_FS_READONLY
-static
-FRESULT remove_chain (
-	FATFS *fs,			/* File system object */
-	DWORD clst			/* Cluster# to remove chain from */
-)
-{
-	FRESULT res;
-	DWORD nxt;
-
-
-	if (clst < 2 || clst >= fs->max_clust) {	/* Check cluster address range */
-		res = FR_INT_ERR;
-
-	} else {
-		res = FR_OK;
-		while (clst < fs->max_clust) {			/* Not a last link? */
-			nxt = get_cluster(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_cluster(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;
-			}
-			clst = nxt;	/* Next cluster */
-		}
-	}
-
-	return res;
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* 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, mcl;
-
-
-	mcl = fs->max_clust;
-	if (clst == 0) {		/* Create new chain */
-		scl = fs->last_clust;			/* Get suggested start point */
-		if (scl == 0 || scl >= mcl) scl = 1;
-	}
-	else {					/* Stretch existing chain */
-		cs = get_cluster(fs, clst);		/* Check the cluster status */
-		if (cs < 2) return 1;			/* It is an invalid cluster */
-		if (cs < mcl) return cs;		/* It is already followed by next cluster */
-		scl = clst;
-	}
-
-	ncl = scl;				/* Start cluster */
-	for (;;) {
-		ncl++;							/* Next cluster */
-		if (ncl >= mcl) {				/* Wrap around */
-			ncl = 2;
-			if (ncl > scl) return 0;	/* No free custer */
-		}
-		cs = get_cluster(fs, ncl);		/* Get the cluster status */
-		if (cs == 0) break;				/* Found a free cluster */
-		if (cs == 0xFFFFFFFF || cs == 1)/* An error occured */
-			return cs;
-		if (ncl == scl) return 0;		/* No free custer */
-	}
-
-	if (put_cluster(fs, ncl, 0x0FFFFFFF))	/* Mark the new cluster "in use" */
-		return 0xFFFFFFFF;
-	if (clst != 0) {						/* Link it to previous one if needed */
-		if (put_cluster(fs, clst, ncl))
-			return 0xFFFFFFFF;
-	}
-
-	fs->last_clust = ncl;				/* Update FSINFO */
-	if (fs->free_clust != 0xFFFFFFFF) {
-		fs->free_clust--;
-		fs->fsi_flag = 1;
-	}
-
-	return ncl;		/* Return new cluster number */
-}
-#endif /* !_FS_READONLY */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Get sector# from cluster#                                             */
-/*-----------------------------------------------------------------------*/
-
-static
-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->max_clust - 2)) return 0;		/* Invalid cluster# */
-	return clst * fs->csize + fs->database;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Seek directory index                                                  */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT dir_seek (
-	DIR *dj,		/* Pointer to directory object */
-	WORD idx		/* Directory index number */
-)
-{
-	DWORD clst;
-	WORD ic;
-
-
-	dj->index = idx;
-	clst = dj->sclust;
-	if (clst == 1 || clst >= dj->fs->max_clust)	/* Check start cluster range */
-		return FR_INT_ERR;
-
-	if (clst == 0) {	/* Static table */
-		if (idx >= dj->fs->n_rootdir)		/* Index is out of range */
-			return FR_INT_ERR;
-		dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / 32);
-	}
-	else {				/* Dynamic table */
-		ic = SS(dj->fs) / 32 * dj->fs->csize;	/* Indexes per cluster */
-		while (idx >= ic) {	/* Follow cluster chain */
-			clst = get_cluster(dj->fs, clst);			/* Get next cluster */
-			if (clst == 0xFFFFFFFF) return FR_DISK_ERR;	/* Disk error */
-			if (clst < 2 || clst >= dj->fs->max_clust)	/* 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) / 32);
-	}
-	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / 32)) * 32;
-
-	return FR_OK;	/* Seek succeeded */
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Move directory index next                                             */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT dir_next (	/* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not streach */
-	DIR *dj,		/* Pointer to directory object */
-	BOOL streach	/* FALSE: Do not streach table, TRUE: Streach table if needed */
-)
-{
-	DWORD clst;
-	WORD i;
-
-
-	i = dj->index + 1;
-	if (!i || !dj->sect)	/* Report EOT when index has reached 65535 */
-		return FR_NO_FILE;
-
-	if (!(i % (SS(dj->fs) / 32))) {	/* Sector changed? */
-		dj->sect++;					/* Next sector */
-
-		if (dj->sclust == 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) / 32)) & (dj->fs->csize - 1)) == 0) {	/* Cluster changed? */
-				clst = get_cluster(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->max_clust) {				/* When it reached end of dinamic table */
-#if !_FS_READONLY
-					BYTE c;
-					if (!streach) return FR_NO_FILE;			/* When do not streach, report EOT */
-					clst = create_chain(dj->fs, dj->clust);		/* Streach 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 streached table */
-					if (move_window(dj->fs, 0)) 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 (move_window(dj->fs, 0)) 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) / 32)) * 32;
-
-	return FR_OK;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* 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
-BOOL test_lfn (			/* TRUE:Matched, FALSE:Not matched */
-	WCHAR *lfnbuf,		/* Pointer to the LFN to be compared */
-	BYTE *dir			/* Pointer to the directory entry containing a part of LFN */
-)
-{
-	int i, s;
-	WCHAR wc1, wc2;
-
-
-	i = ((dir[LDIR_Ord] & 0xBF) - 1) * 13;	/* Offset in the LFN buffer */
-	s = 0;
-	do {
-		if (i >= _MAX_LFN) return FALSE;	/* Out of buffer range? */
-		wc1 = LD_WORD(dir+LfnOfs[s]);		/* Get both characters to compare */
-		wc2 = lfnbuf[i++];
-		if (IsLower(wc1)) wc1 -= 0x20;		/* Compare it (ignore case) */
-		if (IsLower(wc2)) wc2 -= 0x20;
-		if (wc1 != wc2) return FALSE;
-	} while (++s < 13 && wc1);				/* Repeat until last char or a NUL char is processed */
-
-	return TRUE;							/* The LFN entry matched */
-}
-
-
-
-static
-BOOL pick_lfn (			/* TRUE:Succeeded, FALSE:Buffer overflow */
-	WCHAR *lfnbuf,		/* Pointer to the Unicode-LFN buffer */
-	BYTE *dir			/* Pointer to the directory entry */
-)
-{
-	int i, s;
-	WCHAR wchr;
-
-
-	i = ((dir[LDIR_Ord] & 0xBF) - 1) * 13;	/* Offset in the LFN buffer */
-	s = 0;
-	do {
-		wchr = LD_WORD(dir+LfnOfs[s]);		/* Get an LFN char */
-		if (!wchr) break;					/* End of LFN? */
-		if (i >= _MAX_LFN) return FALSE;	/* Buffer overflow */
-		lfnbuf[i++] = wchr;					/* Store it */
-	} while (++s < 13);						/* Repeat until last char is copied */
-	if (dir[LDIR_Ord] & 0x40) lfnbuf[i] = 0;	/* Put terminator if last LFN entry */
-
-	return TRUE;
-}
-
-
-#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 */
-)
-{
-	int i, s;
-	WCHAR wchr;
-
-
-	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;				/* Offset in the LFN buffer */
-	s = wchr = 0;
-	do {
-		if (wchr != 0xFFFF) wchr = lfnbuf[i++];	/* Get an effective char */
-		ST_WORD(dir+LfnOfs[s], wchr);	/* Put it */
-		if (!wchr) wchr = 0xFFFF;	/* Padding chars following last char */
-	} while (++s < 13);
-	if (wchr == 0xFFFF || !lfnbuf[i]) ord |= 0x40;/* 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 genartated SFN */
-	const BYTE *src,	/* Pointer to source SFN to be modified */
-	const WCHAR *lfn,	/* Pointer to LFN */
-	WORD num			/* Sequense number */
-)
-{
-	char ns[8];
-	int i, j;
-
-
-	mem_cpy(dst, src, 11);
-
-	if (num > 5) {	/* On many collisions, generate a hash number instead of sequencial number */
-		do num = (num >> 1) + (num << 15) + (WORD)*lfn++; while (*lfn);
-	}
-
-	/* itoa */
-	i = 7;
-	do {
-		ns[i--] = (num % 10) + '0';
-		num /= 10;
-	} while (num);
-	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;
-	int n = 11;
-
-	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
-	return sum;
-}
-#endif
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* 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 a, c, lfen, ord, sum, *dir;
-
-
-	res = dir_seek(dj, 0);			/* Rewind directory object */
-	if (res != FR_OK) return res;
-
-	ord = sum = 0xFF; lfen = *(dj->fn+11) & 1;
-	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 */
-		a = dir[DIR_Attr] & AM_MASK;
-#if _USE_LFN	/* LFN configuration */
-		if (c == 0xE5 || c == '.' || ((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 & 0x40) {		/* Is it start of LFN sequence? */
-						sum = dir[LDIR_Chksum];
-						c &= 0xBF; ord = c;		/* LFN start order */
-						dj->lfn_idx = dj->index;
-					}
-					/* Check LFN validity. Compare LFN if it is out of 8.3 format */
-					ord = (c == ord && sum == dir[LDIR_Chksum] && (!lfen || test_lfn(dj->lfn, dir))) ? ord - 1 : 0xFF;
-				}
-			} else {					/* An SFN entry is found */
-				if (ord || sum != sum_sfn(dir)) {	/* Did not LFN match? */
-					dj->lfn_idx = 0xFFFF;
-					ord = 0xFF;
-				}
-				if (lfen) {				/* Match LFN if it is out of 8.3 format */
-					if (ord == 0) break;
-				} else {				/* Match SFN if LFN is in 8.3 format */
-					if (!mem_cmp(dir, dj->fn, 11)) break;
-				}
-			}
-		}
-#else	/* Non LFN configuration */
-		if (c != 0xE5 && c != '.' && !(a & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
-			break;
-#endif
-		res = dir_next(dj, FALSE);				/* Next entry */
-	} while (res == FR_OK);
-
-	return res;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Read an object from the directory                                     */
-/*-----------------------------------------------------------------------*/
-#if _FS_MINIMIZE <= 2
-static
-FRESULT dir_read (
-	DIR *dj			/* Pointer to the directory object to store read object name */
-)
-{
-	FRESULT res;
-	BYTE a, c, ord, sum, *dir;
-
-
-	ord = sum = 0xFF;
-	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 == 0xE5 || c == '.' || ((a & AM_VOL) && a != AM_LFN)) {	/* An entry without valid data */
-			ord = 0xFF;
-		} else {
-			if (a == AM_LFN) {			/* An LFN entry is found */
-				if (c & 0x40) {			/* Is it start of LFN sequence? */
-					sum = dir[LDIR_Chksum];
-					c &= 0xBF; 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 entry? */
-					dj->lfn_idx = 0xFFFF;		/* No LFN. */
-				break;
-			}
-		}
-#else	/* Non LFN configuration */
-		if (c != 0xE5 && c != '.' && !(a & AM_VOL))	/* Is it a valid entry? */
-			break;
-#endif
-		res = dir_next(dj, FALSE);				/* Next entry */
-		if (res != FR_OK) break;
-	}
-
-	if (res != FR_OK) dj->sect = 0;
-
-	return res;
-}
-#endif
-
-
-
-/*-----------------------------------------------------------------------*/
-/* 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;
-	BYTE c, *dir;
-
-#if _USE_LFN	/* LFN configuration */
-	WORD n, ne, is;
-	BYTE sn[12], *fn, sum;
-	WCHAR *lfn;
-
-	fn = dj->fn; lfn = dj->lfn;
-	mem_cpy(sn, fn, 12);
-	if (sn[11] & 1) {		/* When LFN is out of 8.3 format, generate a numbered name */
-		fn[11] = 0; dj->lfn = NULL;			/* 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[11] = sn[11]; dj->lfn = lfn;
-	}
-	if (sn[11] & 2) {		/* When eliminate LFN, reserve only an SFN entry. */
-		ne = 1;
-	} else {				/* Otherwise reserve an SFN + LFN entries. */
-		for (ne = 0; lfn[ne]; ne++) ;
-		ne = (ne + 25) / 13;
-	}
-
-	/* Reserve contiguous entries */
-	res = dir_seek(dj, 0);
-	if (res != FR_OK) return res;
-	n = is = 0;
-	do {
-		res = move_window(dj->fs, dj->sect);
-		if (res != FR_OK) break;
-		c = *dj->dir;	/* Check the entry status */
-		if (c == 0xE5 || c == 0) {	/* Is it a blank entry? */
-			if (n == 0) is = dj->index;	/* First index of the contigulus entry */
-			if (++n == ne) break;	/* A contiguous entry that requiered count is found */
-		} else {
-			n = 0;					/* Not a blank entry. Restart to search */
-		}
-		res = dir_next(dj, TRUE);	/* Next entry with table streach */
-	} while (res == FR_OK);
-
-	if (res == FR_OK && ne > 1) {	/* Initialize LFN entry if needed */
-		res = dir_seek(dj, is);
-		if (res == FR_OK) {
-			sum = sum_sfn(dj->fn);	/* Sum of the SFN tied to the LFN */
-			ne--;
-			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, FALSE);	/* Next entry */
-			} while (res == FR_OK && --ne);
-		}
-	}
-
-#else	/* Non LFN configuration */
-	res = dir_seek(dj, 0);
-	if (res == FR_OK) {
-		do {	/* Find a blank entry for the SFN */
-			res = move_window(dj->fs, dj->sect);
-			if (res != FR_OK) break;
-			c = *dj->dir;
-			if (c == 0xE5 || c == 0) break;	/* Is it a blank entry? */
-			res = dir_next(dj, TRUE);		/* Next entry with table streach */
-		} while (res == FR_OK);
-	}
-#endif
-
-	if (res == FR_OK) {		/* Initialize the SFN entry */
-		res = move_window(dj->fs, dj->sect);
-		if (res == FR_OK) {
-			dir = dj->dir;
-			mem_set(dir, 0, 32);			/* Clean the entry */
-			mem_cpy(dir, dj->fn, 11);	/* Put SFN */
-			dir[DIR_NTres] = *(dj->fn+11) & 0x18;	/* Put NT flag */
-			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_seek(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 = 0xE5;				/* Mark the entry "deleted" */
-			dj->fs->wflag = 1;
-			if (dj->index >= i) break;		/* When SFN is deleted, all entries of the object is deleted. */
-			res = dir_next(dj, FALSE);		/* Next entry */
-		} while (res == FR_OK);
-		if (res == FR_NO_FILE) res = FR_INT_ERR;
-	}
-
-#else			/* Non LFN configuration */
-	res = dir_seek(dj, dj->index);
-	if (res == FR_OK) {
-		res = move_window(dj->fs, dj->sect);
-		if (res == FR_OK) {
-			*dj->dir = 0xE5;				/* 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 char **path	/* Pointer to pointer to the segment in the path string */
-)
-{
-#if _USE_LFN
-	BYTE c, b, cf, *sfn;
-	WCHAR w, *lfn;
-	int i, ni, si, di;
-	const char *p;
-
-	/* Create LFN in Unicode */
-	si = di = 0;
-	p = *path;
-	lfn = dj->lfn;
-	for (;;) {
-		w = (BYTE)p[si++];				/* Get a character */
-		if (w < ' ' || w == '/' || w == '\\') break;	/* Break on end of segment */
-		if (IsDBCS1(w)) {				/* If it is DBC 1st byte */
-			c = p[si++];				/* Get 2nd byte */
-			if (!IsDBCS2(c))			/* Reject invalid DBC */
-				return FR_INVALID_NAME;
-			w = (w << 8) + c;
-		} else {
-			if (chk_chr("\"*:<>\?|\x7F", w))	/* Reject unallowable chars for LFN */
-				return FR_INVALID_NAME;
-		}
-		w = ff_convert(w, 1);			/* Convert OEM to Unicode, store it */
-		if (!w || di >= _MAX_LFN)		/* Reject invalid code or too long name */
-			return FR_INVALID_NAME;
-		lfn[di++] = w;
-	}
-	*path = &p[si];						/* Rerurn pointer to the next segment */
-	cf = (w < ' ') ? 4 : 0;				/* Set last segment flag if end of path */
-
-	while (di) {						/* Strip trailing spaces and dots */
-		w = lfn[di - 1];
-		if (w != ' ' && w != '.') break;
-		di--;
-	}
-	if (!di) return FR_INVALID_NAME;	/* Reject null string */
-
-	lfn[di] = 0;						/* LFN is created */
-
-	/* Create SFN in directory form */
-	sfn = dj->fn;
-	mem_set(sfn, ' ', 11);
-	for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ;	/* Strip leading spaces and dots */
-	if (si) cf |= 1;
-	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 == 0) break;				/* Break when enf of the LFN */
-		if (w == ' ' || (w == '.' && si != di)) {	/* Remove spaces and dots */
-			cf |= 1; continue;
-		}
-		if (i >= ni || si == di) {		/* Here is extension or end of SFN */
-			if (ni == 11) {				/* Extension is longer than 3 bytes */
-				cf |= 1; break;
-			}
-			if (si != di) cf |= 1;		/* File name is longer than 8 bytes */
-			if (si > di) break;			/* No extension */
-			si = di; i = 8; ni = 11;	/* Enter extension section */
-			b <<= 2; continue;
-		}
-		w = ff_convert(w, 0);			/* Unicode -> OEM code */
-		if (w >= 0x80) cf |= 0x20;		/* If there is any extended char, force create an LFN */
-		if (w >= 0x100) {				/* Double byte char */
-			if (i >= ni - 1) {
-				cf |= 1; i = ni; continue;
-			}
-			sfn[i++] = (BYTE)(w >> 8);
-		} else {						/* Single byte char */
-			if (chk_chr("+,;[=]", w)) {	/* Replace unallowable chars for SFN */
-				w = '_'; cf |= 1;
-			} else {
-				if (IsUpper(w)) {		/* Large capital */
-					b |= 2;
-				} else {
-					if (IsLower(w)) {	/* Small capital */
-						b |= 1; w -= 0x20;
-					}
-				}
-			}
-		}
-		sfn[i++] = (BYTE)w;
-	}
-	if (sfn[0] == 0xE5) sfn[0] = 0x05;	/* When first char collides with 0xE5, replace it with 0x05 */
-
-	if (ni == 8) b <<= 2;
-	if ((cf & 0x21) == 0) {	/* When LFN is in 8.3 format without extended char, NT flags are created */
-		if ((b & 0x03) == 0x01) cf |= 0x10;	/* NT flag (Extension has only small capital) */
-		if ((b & 0x0C) == 0x04) cf |= 0x08;	/* NT flag (Filename has only small capital) */
-		if ((b & 0x0C) != 0x0C && (b & 0x03) != 0x03) cf |= 2;	/* Eliminate LFN when non composite capitals */
-	}
-
-	sfn[11] = cf;		/* SFN is created */
-
-#else
-	BYTE c, d, b, *sfn;
-	int ni, si, i;
-	const char *p;
-
-	/* Create file name in directory form */
-	sfn = dj->fn;
-	mem_set(sfn, ' ', 11);
-	si = i = b = 0; ni = 8;
-	p = *path;
-	for (;;) {
-		c = 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) b |= 3;			/* If there is any extended char, eliminate NT flag */
-		if (IsDBCS1(c)) {				/* If it is DBC 1st byte */
-			d = 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 {
-			if (chk_chr(" +,;[=]\"*:<>\?|\x7F", c))	/* Reject unallowable chrs for SFN */
-				return FR_INVALID_NAME;
-			if (IsUpper(c)) {
-				b |= 2;
-			} else {
-				if (IsLower(c)) {
-					b |= 1; c -= 0x20;
-				}
-			}
-			sfn[i++] = c;
-		}
-	}
-	*path = &p[si];						/* Rerurn pointer to the next segment */
-	c = (c < ' ') ? 4 : 0;				/* Set last segment flag if end of path */
-
-	if (!i) return FR_INVALID_NAME;		/* Reject null string */
-	if (sfn[0] == 0xE5) sfn[0] = 0x05;	/* When first char collides with 0xE5, replace it with 0x05 */
-
-	if (ni == 8) b <<= 2;
-	if ((b & 0x03) == 0x01) c |= 0x10;	/* NT flag (Extension has only small capital) */
-	if ((b & 0x0C) == 0x04) c |= 0x08;	/* NT flag (Filename has only small capital) */
-
-	sfn[11] = c;		/* Store NT flag, File name is created */
-#endif
-
-	return FR_OK;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Get file information from directory entry                             */
-/*-----------------------------------------------------------------------*/
-#if _FS_MINIMIZE <= 1
-static
-void get_fileinfo (		/* No return code */
-	DIR *dj,			/* Pointer to the directory object */
-	FILINFO *fno	 	/* Pointer to store the file information */
-)
-{
-	int i;
-	BYTE c, nt, *dir;
-	char *p;
-
-
-	p = fno->fname;
-	if (dj->sect) {
-		dir = dj->dir;
-		nt = dir[DIR_NTres];		/* NT flag */
-		for (i = 0; i < 8; i++) {	/* Copy file name body */
-			c = dir[i];
-			if (c == ' ') break;
-			if (c == 0x05) c = 0xE5;
-			if ((nt & 0x08) && IsUpper(c)) c += 0x20;
-			*p++ = c;
-		}
-		if (dir[8] != ' ') {		/* Copy file name extension */
-			*p++ = '.';
-			for (i = 8; i < 11; i++) {
-				c = dir[i];
-				if (c == ' ') break;
-				if ((nt & 0x10) && IsUpper(c)) c += 0x20;
-				*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;
-
-#if _USE_LFN
-	p = fno->lfname;
-	if (p) {
-		WCHAR wchr, *lfn;
-
-		i = 0;
-		if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
-			lfn = dj->lfn;
-			while ((wchr = *lfn++) != 0) {		/* Get an LFN char */
-				wchr = ff_convert(wchr, 0);		/* Unicode -> OEM code */
-				if (!wchr) { i = 0; break; }	/* Conversion error, no LFN */
-				if (_DF1S && wchr >= 0x100)		/* Put 1st byte if it is a DBC */
-					p[i++] = (char)(wchr >> 8);
-				p[i++] = (char)wchr;
-				if (i >= fno->lfsize) { i = 0; break; }	/* Buffer overrun, no LFN */
-			}
-		}
-		p[i] = 0;	/* Terminator */
-	}
-#endif
-}
-#endif /* _FS_MINIMIZE <= 1 */
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* 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 char *path	/* Full-path string to find a file or directory */
-)
-{
-	FRESULT res;
-	BYTE *dir, last;
-
-
-	if (*path == '/' || *path == '\\' ) path++;	/* Strip heading separator */
-
-	dj->sclust =						/* Set start directory (root dir) */
-		(dj->fs->fs_type == FS_FAT32) ? dj->fs->dirbase : 0;
-
-	if ((BYTE)*path < ' ') {			/* Null path means the root directory */
-		res = dir_seek(dj, 0);
-		dj->dir = NULL;
-
-	} else {							/* Follow path */
-		for (;;) {
-			res = create_name(dj, &path);	/* Get a segment */
-			if (res != FR_OK) break;
-			res = dir_find(dj);				/* Find it */
-			last = *(dj->fn+11) & 4;
-			if (res != FR_OK) {				/* Could not find the object */
-				if (res == FR_NO_FILE && !last)
-					res = FR_NO_PATH;
-				break;
-			}
-			if (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 = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);
-		}
-	}
-
-	return res;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Load boot record and check if it is an FAT boot record                */
-/*-----------------------------------------------------------------------*/
-
-static
-BYTE check_fs (	/* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record, 3: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->drive, 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 (!mem_cmp(&fs->win[BS_FilSysType], "FAT", 3))		/* Check FAT signature */
-		return 0;
-	if (!mem_cmp(&fs->win[BS_FilSysType32], "FAT32", 5) && !(fs->win[BPB_ExtFlags] & 0x80))
-		return 0;
-
-	return 1;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Make sure that the file system is valid                               */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT auto_mount (	/* FR_OK(0): successful, !=0: any error occured */
-	const char **path,	/* Pointer to pointer to the path name (drive number) */
-	FATFS **rfs,		/* Pointer to pointer to the found file system object */
-	BYTE chk_wp			/* !=0: Check media write protection for write access */
-)
-{
-	FRESULT res;
-	BYTE vol, fmt, *tbl;
-	DSTATUS stat;
-	DWORD bsect, fsize, tsect, mclst;
-	const char *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] == ':') {
-		p += 2;					/* Found a drive number, get and strip it */
-		*path = p;				/* Return pointer to the path name */
-	} else {
-		vol = 0;				/* No drive number is given, use drive number 0 as default */
-	}
-	/* Check if the logical drive number is valid or not */
-	if (vol >= _DRIVES) return FR_INVALID_DRIVE;	/* Is the drive number valid? */
-	*rfs = fs = FatFs[vol];					/* Returen pointer to the corresponding file system object */
-	if (!fs) return FR_NOT_ENABLED;			/* Is the file system object registered? */
-
-	ENTER_FF(fs);				/* Lock file system */
-
-	if (fs->fs_type) {						/* If the logical drive has been mounted */
-		stat = disk_status(fs->drive);
-		if (!(stat & STA_NOINIT)) {			/* and physical drive is kept initialized (has not been changed), */
-#if !_FS_READONLY
-			if (chk_wp && (stat & STA_PROTECT))	/* Check write protection if needed */
-				return FR_WRITE_PROTECTED;
-#endif
-			return FR_OK;					/* The file system object is valid */
-		}
-	}
-
-	/* The logical drive must be re-mounted. Following code attempts to mount the volume */
-
-	fs->fs_type = 0;					/* Clear the file system object */
-	fs->drive = LD2PD(vol);				/* Bind the logical drive and a physical drive */
-	stat = disk_initialize(fs->drive);	/* Initialize low level disk I/O layer */
-	if (stat & STA_NOINIT)				/* Check if the drive is ready */
-		return FR_NOT_READY;
-#if _MAX_SS != 512						/* Get disk sector size if needed */
-	if (disk_ioctl(fs->drive, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > _MAX_SS)
-		return FR_NO_FILESYSTEM;
-#endif
-#if !_FS_READONLY
-	if (chk_wp && (stat & STA_PROTECT))	/* Check write protection if needed */
-		return FR_WRITE_PROTECTED;
-#endif
-	/* Search FAT partition on the drive */
-	fmt = check_fs(fs, bsect = 0);		/* Check sector 0 as an SFD format */
-	if (fmt == 1) {						/* Not an FAT boot record, it may be patitioned */
-		/* Check a partition listed in top of the partition table */
-		tbl = &fs->win[MBR_Table + LD2PT(vol) * 16];	/* 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 || LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs))	/* No valid FAT patition is found */
-		return FR_NO_FILESYSTEM;
-
-	/* Initialize the file system object */
-	fsize = LD_WORD(fs->win+BPB_FATSz16);				/* Number of sectors per FAT */
-	if (!fsize) fsize = LD_DWORD(fs->win+BPB_FATSz32);
-	fs->sects_fat = fsize;
-	fs->n_fats = fs->win[BPB_NumFATs];					/* Number of FAT copies */
-	fsize *= fs->n_fats;								/* (Number of sectors in FAT area) */
-	fs->fatbase = bsect + LD_WORD(fs->win+BPB_RsvdSecCnt); /* FAT start sector (lba) */
-	fs->csize = fs->win[BPB_SecPerClus];				/* Number of sectors per cluster */
-	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt);	/* Nmuber of root directory entries */
-	tsect = LD_WORD(fs->win+BPB_TotSec16);				/* Number of sectors on the file system */
-	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
-	fs->max_clust = mclst = (tsect						/* Last cluster# + 1 */
-		- LD_WORD(fs->win+BPB_RsvdSecCnt) - fsize - fs->n_rootdir / (SS(fs)/32)
-		) / fs->csize + 2;
-
-	fmt = FS_FAT12;										/* Determine the FAT sub type */
-	if (mclst >= 0xFF7) fmt = FS_FAT16;				/* Number of clusters >= 0xFF5 */
-	if (mclst >= 0xFFF7) fmt = FS_FAT32;			/* Number of clusters >= 0xFFF5 */
-
-	if (fmt == FS_FAT32)
-		fs->dirbase = LD_DWORD(fs->win+BPB_RootClus);	/* Root directory start cluster */
-	else
-		fs->dirbase = fs->fatbase + fsize;				/* Root directory start sector (lba) */
-	fs->database = fs->fatbase + fsize + fs->n_rootdir / (SS(fs)/32);	/* Data start sector (lba) */
-
-#if !_FS_READONLY
-	/* Initialize allocation information */
-	fs->free_clust = 0xFFFFFFFF;
-	fs->wflag = 0;
-	/* Get fsinfo if needed */
-	if (fmt == FS_FAT32) {
-		fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
-		fs->fsi_flag = 0;
-		if (disk_read(fs->drive, 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->winsect = 0;
-	fs->fs_type = fmt;			/* FAT syb-type */
-	fs->id = ++Fsid;			/* File system mount ID */
-	res = FR_OK;
-
-	return res;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Check if the file/dir object is valid or not                          */
-/*-----------------------------------------------------------------------*/
-
-static
-FRESULT validate (	/* FR_OK(0): The object is valid, !=0: Invalid */
-	FATFS *fs,		/* Pointer to the file system object */
-	WORD id			/* Member id of the target object to be checked */
-)
-{
-	if (!fs || !fs->fs_type || fs->id != id)
-		return FR_INVALID_OBJECT;
-
-	ENTER_FF(fs);		/* Lock file system */
-
-	if (disk_status(fs->drive) & STA_NOINIT)
-		return FR_NOT_READY;
-
-	return FR_OK;
-}
-
-
-
-
-/*--------------------------------------------------------------------------
-
-   Public Functions
-
---------------------------------------------------------------------------*/
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Mount/Unmount a Locical 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 >= _DRIVES)				/* Check if the drive number is valid */
-		return FR_INVALID_DRIVE;
-	rfs = FatFs[vol];				/* Get current state */
-
-	if (rfs) {
-#if _FS_REENTRANT					/* Discard sync object of the current volume */
-		if (!ff_del_syncobj(fs->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 char *path,	/* Pointer to the file name */
-	BYTE mode			/* Access mode and file open mode flags */
-)
-{
-	FRESULT res;
-	DIR dj;
-	NAMEBUF(sfn, lfn);
-	BYTE *dir;
-
-
-	fp->fs = NULL;		/* Clear file object */
-#if !_FS_READONLY
-	mode &= (FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW);
-	res = auto_mount(&path, &dj.fs, (BYTE)(mode & (FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)));
-#else
-	mode &= FA_READ;
-	res = auto_mount(&path, &dj.fs, 0);
-#endif
-	if (res != FR_OK) LEAVE_FF(dj.fs, res);
-	INITBUF(dj, sfn, lfn);
-	res = follow_path(&dj, path);	/* Follow the file path */
-
-#if !_FS_READONLY
-	/* Create or Open a file */
-	if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {
-		DWORD ps, cl;
-
-		if (res != FR_OK) {		/* No file, create new */
-			if (res == FR_NO_FILE)
-				res = dir_register(&dj);
-			if (res != FR_OK) LEAVE_FF(dj.fs, res);
-			mode |= FA_CREATE_ALWAYS;
-			dir = dj.dir;
-		}
-		else {					/* Any object is already existing */
-			if (mode & FA_CREATE_NEW)			/* Cannot create new */
-				LEAVE_FF(dj.fs, FR_EXIST);
-			dir = dj.dir;
-			if (!dir || (dir[DIR_Attr] & (AM_RDO | AM_DIR)))	/* Cannot overwrite it (R/O or DIR) */
-				LEAVE_FF(dj.fs, FR_DENIED);
-			if (mode & FA_CREATE_ALWAYS) {		/* Resize it to zero if needed */
-				cl = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);	/* Get start cluster */
-				ST_WORD(dir+DIR_FstClusHI, 0);	/* cluster = 0 */
-				ST_WORD(dir+DIR_FstClusLO, 0);
-				ST_DWORD(dir+DIR_FileSize, 0);	/* size = 0 */
-				dj.fs->wflag = 1;
-				ps = dj.fs->winsect;			/* Remove the cluster chain */
-				if (cl) {
-					res = remove_chain(dj.fs, cl);
-					if (res) LEAVE_FF(dj.fs, res);
-					dj.fs->last_clust = cl - 1;	/* Reuse the cluster hole */
-				}
-				res = move_window(dj.fs, ps);
-				if (res != FR_OK) LEAVE_FF(dj.fs, res);
-			}
-		}
-		if (mode & FA_CREATE_ALWAYS) {
-			dir[DIR_Attr] = 0;					/* Reset attribute */
-			ps = get_fattime();
-			ST_DWORD(dir+DIR_CrtTime, ps);		/* Created time */
-			dj.fs->wflag = 1;
-			mode |= FA__WRITTEN;				/* Set file changed flag */
-		}
-	}
-	/* Open an existing file */
-	else {
-#endif /* !_FS_READONLY */
-		if (res != FR_OK) LEAVE_FF(dj.fs, res);	/* Follow failed */
-		dir = dj.dir;
-		if (!dir || (dir[DIR_Attr] & AM_DIR))	/* It is a directory */
-			LEAVE_FF(dj.fs, FR_NO_FILE);
-#if !_FS_READONLY
-		if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
-			LEAVE_FF(dj.fs, FR_DENIED);
-	}
-	fp->dir_sect = dj.fs->winsect;		/* Pointer to the directory entry */
-	fp->dir_ptr = dj.dir;
-#endif
-	fp->flag = mode;					/* File access mode */
-	fp->org_clust =						/* File start cluster */
-		((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);
-	fp->fsize = LD_DWORD(dir+DIR_FileSize);	/* File size */
-	fp->fptr = 0; fp->csect = 255;		/* File pointer */
-	fp->dsect = 0;
-	fp->fs = dj.fs; fp->id = dj.fs->id;	/* Owner file system object of the file */
-
-	LEAVE_FF(dj.fs, FR_OK);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* 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 *rbuff = buff;
-
-
-	*br = 0;
-
-	res = validate(fp->fs, fp->id);					/* 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 (!(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 transferred */
-		rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
-		if ((fp->fptr % SS(fp->fs)) == 0) {			/* On the sector boundary? */
-			if (fp->csect >= fp->fs->csize) {		/* On the cluster boundary? */
-				clst = (fp->fptr == 0) ?			/* On the top of the file? */
-					fp->org_clust : get_cluster(fp->fs, fp->curr_clust);
-				if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
-				if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
-				fp->curr_clust = clst;				/* Update current cluster */
-				fp->csect = 0;						/* Reset sector offset in the cluster */
-			}
-			sect = clust2sect(fp->fs, fp->curr_clust);	/* Get current sector */
-			if (!sect) ABORT(fp->fs, FR_INT_ERR);
-			sect += fp->csect;
-			cc = btr / SS(fp->fs);					/* When remaining bytes >= sector size, */
-			if (cc) {								/* Read maximum contiguous sectors directly */
-				if (fp->csect + cc > fp->fs->csize)	/* Clip at cluster boundary */
-					cc = fp->fs->csize - fp->csect;
-				if (disk_read(fp->fs->drive, rbuff, sect, (BYTE)cc) != RES_OK)
-					ABORT(fp->fs, FR_DISK_ERR);
-				fp->csect += (BYTE)cc;				/* Next sector address in the cluster */
-				rcnt = SS(fp->fs) * cc;				/* Number of bytes transferred */
-				continue;
-			}
-#if !_FS_TINY
-#if !_FS_READONLY
-			if (fp->flag & FA__DIRTY) {			/* Write sector I/O buffer if needed */
-				if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
-					ABORT(fp->fs, FR_DISK_ERR);
-				fp->flag &= (BYTE)~FA__DIRTY;
-			}
-#endif
-			if (fp->dsect != sect) {			/* Fill sector buffer with file data */
-				if (disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK)
-					ABORT(fp->fs, FR_DISK_ERR);
-			}
-#endif
-			fp->dsect = sect;
-			fp->csect++;							/* Next sector address in the cluster */
-		}
-		rcnt = SS(fp->fs) - (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 = buff;
-
-
-	*bw = 0;
-
-	res = validate(fp->fs, fp->id);					/* 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 (!(fp->flag & FA_WRITE))						/* Check access mode */
-		LEAVE_FF(fp->fs, FR_DENIED);
-	if (fp->fsize + btw < fp->fsize) btw = 0;		/* File size cannot reach 4GB */
-
-	for ( ;  btw;									/* Repeat until all data transferred */
-		wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
-		if ((fp->fptr % SS(fp->fs)) == 0) {			/* On the sector boundary? */
-			if (fp->csect >= fp->fs->csize) {		/* On the cluster boundary? */
-				if (fp->fptr == 0) {				/* On the top of the file? */
-					clst = fp->org_clust;			/* Follow from the origin */
-					if (clst == 0)					/* When there is no cluster chain, */
-						fp->org_clust = clst = create_chain(fp->fs, 0);	/* Create a new cluster chain */
-				} else {							/* Middle or end of the file */
-					clst = create_chain(fp->fs, fp->curr_clust);			/* Follow or streach cluster chain */
-				}
-				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->curr_clust = clst;				/* Update current cluster */
-				fp->csect = 0;						/* Reset sector address in the cluster */
-			}
-#if _FS_TINY
-			if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0))	/* Write back data buffer prior to following direct transfer */
-				ABORT(fp->fs, FR_DISK_ERR);
-#else
-			if (fp->flag & FA__DIRTY) {		/* Write back data buffer prior to following direct transfer */
-				if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
-					ABORT(fp->fs, FR_DISK_ERR);
-				fp->flag &= (BYTE)~FA__DIRTY;
-			}
-#endif
-			sect = clust2sect(fp->fs, fp->curr_clust);	/* Get current sector */
-			if (!sect) ABORT(fp->fs, FR_INT_ERR);
-			sect += fp->csect;
-			cc = btw / SS(fp->fs);					/* When remaining bytes >= sector size, */
-			if (cc) {								/* Write maximum contiguous sectors directly */
-				if (fp->csect + cc > fp->fs->csize)	/* Clip at cluster boundary */
-					cc = fp->fs->csize - fp->csect;
-				if (disk_write(fp->fs->drive, wbuff, sect, (BYTE)cc) != RES_OK)
-					ABORT(fp->fs, FR_DISK_ERR);
-				fp->csect += (BYTE)cc;				/* Next sector address in the cluster */
-				wcnt = SS(fp->fs) * cc;				/* Number of bytes transferred */
-				continue;
-			}
-#if _FS_TINY
-			if (fp->fptr >= fp->fsize) {			/* Avoid silly buffer filling at growing edge */
-				if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
-				fp->fs->winsect = sect;
-			}
-#else
-			if (fp->dsect != sect) {				/* Fill sector buffer with file data */
-				if (fp->fptr < fp->fsize &&
-					disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK)
-						ABORT(fp->fs, FR_DISK_ERR);
-			}
-#endif
-			fp->dsect = sect;
-			fp->csect++;							/* Next sector address in the cluster */
-		}
-		wcnt = SS(fp->fs) - (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 changed flag */
-
-	LEAVE_FF(fp->fs, FR_OK);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Synchronize the File Object                                           */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_sync (
-	FIL *fp		/* Pointer to the file object */
-)
-{
-	FRESULT res;
-	DWORD tim;
-	BYTE *dir;
-
-
-	res = validate(fp->fs, fp->id);		/* 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->drive, fp->buf, fp->dsect, 1) != RES_OK)
-					LEAVE_FF(fp->fs, FR_DISK_ERR);
-				fp->flag &= (BYTE)~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_WORD(dir+DIR_FstClusLO, fp->org_clust);	/* Update start cluster */
-				ST_WORD(dir+DIR_FstClusHI, fp->org_clust >> 16);
-				tim = get_fattime();					/* Updated time */
-				ST_DWORD(dir+DIR_WrtTime, tim);
-				fp->flag &= (BYTE)~FA__WRITTEN;
-				fp->fs->wflag = 1;
-				res = sync(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->fs, fp->id);
-	if (res == FR_OK) fp->fs = NULL;
-	LEAVE_FF(fp->fs, res);
-#else
-	res = f_sync(fp);
-	if (res == FR_OK) fp->fs = NULL;
-	return res;
-#endif
-}
-
-
-
-
-#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;
-	DWORD clst, bcs, nsect, ifptr;
-
-
-	res = validate(fp->fs, fp->id);		/* 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 (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 = 0; fp->csect = 255;
-	nsect = 0;
-	if (ofs > 0) {
-		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->curr_clust;
-		} else {									/* When seek to back cluster, */
-			clst = fp->org_clust;					/* 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->org_clust = clst;
-			}
-#endif
-			fp->curr_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 streached if in write mode */
-					if (clst == 0) {				/* When disk gets full, clip file size */
-						ofs = bcs; break;
-					}
-				} else
-#endif
-					clst = get_cluster(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->max_clust) ABORT(fp->fs, FR_INT_ERR);
-				fp->curr_clust = clst;
-				fp->fptr += bcs;
-				ofs -= bcs;
-			}
-			fp->fptr += ofs;
-			fp->csect = (BYTE)(ofs / SS(fp->fs));	/* Sector offset in the cluster */
-			if (ofs % SS(fp->fs)) {
-				nsect = clust2sect(fp->fs, clst);	/* Current sector */
-				if (!nsect) ABORT(fp->fs, FR_INT_ERR);
-				nsect += fp->csect;
-				fp->csect++;
-			}
-		}
-	}
-	if (nsect && nsect != fp->dsect && fp->fptr % SS(fp->fs)) {
-#if !_FS_TINY
-#if !_FS_READONLY
-		if (fp->flag & FA__DIRTY) {			/* Write-back dirty buffer if needed */
-			if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
-				ABORT(fp->fs, FR_DISK_ERR);
-			fp->flag &= (BYTE)~FA__DIRTY;
-		}
-#endif
-		if (disk_read(fp->fs->drive, fp->buf, nsect, 1) != RES_OK)
-			ABORT(fp->fs, FR_DISK_ERR);
-#endif
-		fp->dsect = nsect;
-	}
-#if !_FS_READONLY
-	if (fp->fptr > fp->fsize) {			/* Set changed 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 Directroy Object                                             */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_opendir (
-	DIR *dj,			/* Pointer to directory object to create */
-	const char *path	/* Pointer to the directory path */
-)
-{
-	FRESULT res;
-	NAMEBUF(sfn, lfn);
-	BYTE *dir;
-
-
-	res = auto_mount(&path, &dj->fs, 0);
-	if (res == FR_OK) {
-		INITBUF((*dj), sfn, lfn);
-		res = follow_path(dj, path);			/* Follow the path to the directory */
-		if (res == FR_OK) {						/* Follow completed */
-			dir = dj->dir;
-			if (dir) {							/* It is not the root dir */
-				if (dir[DIR_Attr] & AM_DIR) {	/* The object is a directory */
-					dj->sclust = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);
-				} else {						/* The object is not a directory */
-					res = FR_NO_PATH;
-				}
-			} else {							/* It is the root dir */
-				dj->sclust = (dj->fs->fs_type == FS_FAT32) ? dj->fs->dirbase : 0;
-			}
-			if (res == FR_OK) res = dir_seek(dj, 0);
-			dj->id = dj->fs->id;
-		} else {
-			if (res == FR_NO_FILE) res = FR_NO_PATH;
-		}
-	}
-
-	LEAVE_FF(dj->fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Read Directory Entry in Sequense                                      */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_readdir (
-	DIR *dj,			/* Pointer to the open directory object */
-	FILINFO *fno		/* Pointer to file information to return */
-)
-{
-	FRESULT res;
-	NAMEBUF(sfn, lfn);
-
-
-	res = validate(dj->fs, dj->id);			/* Check validity of the object */
-	if (res == FR_OK) {
-		INITBUF((*dj), sfn, lfn);
-		if (!fno) {
-			res = dir_seek(dj, 0);
-		} else {
-			res = dir_read(dj);
-			if (res == FR_NO_FILE) {
-				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, FALSE);	/* Increment index for next */
-				if (res == FR_NO_FILE) {
-					dj->sect = 0;
-					res = FR_OK;
-				}
-			}
-		}
-	}
-
-	LEAVE_FF(dj->fs, res);
-}
-
-
-
-#if _FS_MINIMIZE == 0
-/*-----------------------------------------------------------------------*/
-/* Get File Status                                                       */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_stat (
-	const char *path,	/* Pointer to the file path */
-	FILINFO *fno		/* Pointer to file information to return */
-)
-{
-	FRESULT res;
-	DIR dj;
-	NAMEBUF(sfn, lfn);
-
-
-	res = auto_mount(&path, &dj.fs, 0);
-	if (res == FR_OK) {
-		INITBUF(dj, sfn, lfn);
-		res = follow_path(&dj, path);	/* Follow the file path */
-		if (res == FR_OK) {				/* Follwo completed */
-			if (dj.dir)	/* Found an object */
-				get_fileinfo(&dj, fno);
-			else		/* It is root dir */
-				res = FR_INVALID_NAME;
-		}
-	}
-
-	LEAVE_FF(dj.fs, res);
-}
-
-
-
-#if !_FS_READONLY
-/*-----------------------------------------------------------------------*/
-/* Truncate File                                                         */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_truncate (
-	FIL *fp		/* Pointer to the file object */
-)
-{
-	FRESULT res;
-	DWORD ncl;
-
-
-	res = validate(fp->fs, fp->id);		/* 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 (!(fp->flag & FA_WRITE))			/* Check access mode */
-		LEAVE_FF(fp->fs, FR_DENIED);
-
-	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->org_clust);
-			fp->org_clust = 0;
-		} else {				/* When truncate a part of the file, remove remaining clusters */
-			ncl = get_cluster(fp->fs, fp->curr_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->max_clust) {
-				res = put_cluster(fp->fs, fp->curr_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);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Get Number of Free Clusters                                           */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_getfree (
-	const char *path,	/* Pointer to the logical drive number (root dir) */
-	DWORD *nclst,		/* Pointer to the variable to return number of free clusters */
-	FATFS **fatfs		/* Pointer to pointer to corresponding file system object to return */
-)
-{
-	FRESULT res;
-	DWORD n, clst, sect;
-	BYTE fat, f, *p;
-
-
-	/* Get drive number */
-	res = auto_mount(&path, fatfs, 0);
-	if (res != FR_OK) LEAVE_FF(*fatfs, res);
-
-	/* If number of free cluster is valid, return it without cluster scan. */
-	if ((*fatfs)->free_clust <= (*fatfs)->max_clust - 2) {
-		*nclst = (*fatfs)->free_clust;
-		LEAVE_FF(*fatfs, FR_OK);
-	}
-
-	/* Get number of free clusters */
-	fat = (*fatfs)->fs_type;
-	n = 0;
-	if (fat == FS_FAT12) {
-		clst = 2;
-		do {
-			if ((WORD)get_cluster(*fatfs, clst) == 0) n++;
-		} while (++clst < (*fatfs)->max_clust);
-	} else {
-		clst = (*fatfs)->max_clust;
-		sect = (*fatfs)->fatbase;
-		f = 0; p = 0;
-		do {
-			if (!f) {
-				res = move_window(*fatfs, sect++);
-				if (res != FR_OK)
-					LEAVE_FF(*fatfs, res);
-				p = (*fatfs)->win;
-			}
-			if (fat == FS_FAT16) {
-				if (LD_WORD(p) == 0) n++;
-				p += 2; f += 1;
-			} else {
-				if (LD_DWORD(p) == 0) n++;
-				p += 4; f += 2;
-			}
-		} while (--clst);
-	}
-	(*fatfs)->free_clust = n;
-	if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
-	*nclst = n;
-
-	LEAVE_FF(*fatfs, FR_OK);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Delete a File or Directory                                            */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_unlink (
-	const char *path		/* Pointer to the file or directory path */
-)
-{
-	FRESULT res;
-	DIR dj, sdj;
-	NAMEBUF(sfn, lfn);
-	BYTE *dir;
-	DWORD dclst;
-
-
-	res = auto_mount(&path, &dj.fs, 1);
-	if (res != FR_OK) LEAVE_FF(dj.fs, res);
-
-	INITBUF(dj, sfn, lfn);
-	res = follow_path(&dj, path);			/* Follow the file path */
-	if (res != FR_OK) LEAVE_FF(dj.fs, res); /* Follow failed */
-
-	dir = dj.dir;
-	if (!dir)								/* Is it the root directory? */
-		LEAVE_FF(dj.fs, FR_INVALID_NAME);
-	if (dir[DIR_Attr] & AM_RDO)				/* Is it a R/O object? */
-		LEAVE_FF(dj.fs, FR_DENIED);
-	dclst = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);
-
-	if (dir[DIR_Attr] & AM_DIR) {			/* It is a sub-directory */
-		if (dclst < 2) LEAVE_FF(dj.fs, FR_INT_ERR);
-		mem_cpy(&sdj, &dj, sizeof(DIR));		/* Check if the sub-dir is empty or not */
-		sdj.sclust = dclst;
-		res = dir_seek(&sdj, 0);
-		if (res != FR_OK) LEAVE_FF(dj.fs, res);
-		res = dir_read(&sdj);
-		if (res == FR_OK) res = FR_DENIED;	/* Not empty sub-dir */
-		if (res != FR_NO_FILE) LEAVE_FF(dj.fs, res);
-	}
-
-	res = dir_remove(&dj);					/* Remove directory entry */
-	if (res == FR_OK) {
-		if (dclst)
-			res = remove_chain(dj.fs, dclst);	/* Remove the cluster chain */
-		if (res == FR_OK) res = sync(dj.fs);
-	}
-
-	LEAVE_FF(dj.fs, FR_OK);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Create a Directory                                                    */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_mkdir (
-	const char *path		/* Pointer to the directory path */
-)
-{
-	FRESULT res;
-	DIR dj;
-	NAMEBUF(sfn, lfn);
-	BYTE *dir, n;
-	DWORD dsect, dclst, pclst, tim;
-
-
-	res = auto_mount(&path, &dj.fs, 1);
-	if (res != FR_OK) LEAVE_FF(dj.fs, res);
-
-	INITBUF(dj, sfn, lfn);
-	res = follow_path(&dj, path);			/* Follow the file path */
-	if (res == FR_OK) res = FR_EXIST;		/* Any file or directory is already existing */
-	if (res != FR_NO_FILE)					/* Any error occured */
-		LEAVE_FF(dj.fs, res);
-
-	dclst = create_chain(dj.fs, 0);			/* Allocate a new cluster for new directory table */
-	res = FR_OK;
-	if (dclst == 0) res = FR_DENIED;
-	if (dclst == 1) res = FR_INT_ERR;
-	if (dclst == 0xFFFFFFFF) res = FR_DISK_ERR;
-	if (res == FR_OK)
-		res = move_window(dj.fs, 0);
-	if (res != FR_OK) LEAVE_FF(dj.fs, res);
-	dsect = clust2sect(dj.fs, dclst);
-
-	dir = dj.fs->win;						/* Initialize the new directory table */
-	mem_set(dir, 0, SS(dj.fs));
-	mem_set(dir+DIR_Name, ' ', 8+3);		/* Create "." entry */
-	dir[DIR_Name] = '.';
-	dir[DIR_Attr] = AM_DIR;
-	tim = get_fattime();
-	ST_DWORD(dir+DIR_WrtTime, tim);
-	ST_WORD(dir+DIR_FstClusLO, dclst);
-	ST_WORD(dir+DIR_FstClusHI, dclst >> 16);
-	mem_cpy(dir+32, dir, 32); 			/* Create ".." entry */
-	dir[33] = '.';
-	pclst = dj.sclust;
-	if (dj.fs->fs_type == FS_FAT32 && pclst == dj.fs->dirbase)
-		pclst = 0;
-	ST_WORD(dir+32+DIR_FstClusLO, pclst);
-	ST_WORD(dir+32+DIR_FstClusHI, pclst >> 16);
-	for (n = 0; n < dj.fs->csize; n++) {	/* Write dot entries and clear left sectors */
-		dj.fs->winsect = dsect++;
-		dj.fs->wflag = 1;
-		res = move_window(dj.fs, 0);
-		if (res) LEAVE_FF(dj.fs, res);
-		mem_set(dir, 0, SS(dj.fs));
-	}
-
-	res = dir_register(&dj);
-	if (res != FR_OK) {
-		remove_chain(dj.fs, dclst);
-	} else {
-		dir = dj.dir;
-		dir[DIR_Attr] = AM_DIR;					/* Attribute */
-		ST_DWORD(dir+DIR_WrtTime, tim);			/* Crated time */
-		ST_WORD(dir+DIR_FstClusLO, dclst);		/* Table start cluster */
-		ST_WORD(dir+DIR_FstClusHI, dclst >> 16);
-		dj.fs->wflag = 1;
-		res = sync(dj.fs);
-	}
-
-	LEAVE_FF(dj.fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Change File Attribute                                                 */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_chmod (
-	const char *path,	/* Pointer to the file path */
-	BYTE value,			/* Attribute bits */
-	BYTE mask			/* Attribute mask to change */
-)
-{
-	FRESULT res;
-	DIR dj;
-	NAMEBUF(sfn, lfn);
-	BYTE *dir;
-
-
-	res = auto_mount(&path, &dj.fs, 1);
-	if (res == FR_OK) {
-		INITBUF(dj, sfn, lfn);
-		res = follow_path(&dj, path);		/* Follow the file path */
-		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(dj.fs);
-			}
-		}
-	}
-
-	LEAVE_FF(dj.fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Change Timestamp                                                      */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_utime (
-	const char *path,	/* Pointer to the file/directory name */
-	const FILINFO *fno	/* Pointer to the timestamp to be set */
-)
-{
-	FRESULT res;
-	DIR dj;
-	NAMEBUF(sfn, lfn);
-	BYTE *dir;
-
-
-	res = auto_mount(&path, &dj.fs, 1);
-	if (res == FR_OK) {
-		INITBUF(dj, sfn, lfn);
-		res = follow_path(&dj, path);	/* Follow the file path */
-		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(dj.fs);
-			}
-		}
-	}
-
-	LEAVE_FF(dj.fs, res);
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Rename File/Directory                                                 */
-/*-----------------------------------------------------------------------*/
-
-FRESULT f_rename (
-	const char *path_old,	/* Pointer to the old name */
-	const char *path_new	/* Pointer to the new name */
-)
-{
-	FRESULT res;
-	DIR dj_old, dj_new;
-	NAMEBUF(sfn, lfn);
-	BYTE buf[21], *dir;
-	DWORD dw;
-
-
-	INITBUF(dj_old, sfn, lfn);
-	res = auto_mount(&path_old, &dj_old.fs, 1);
-	if (res == FR_OK) {
-		dj_new.fs = dj_old.fs;
-		res = follow_path(&dj_old, path_old);	/* Check old object */
-	}
-	if (res != FR_OK) LEAVE_FF(dj_old.fs, res);	/* The old object is not found */
-
-	if (!dj_old.dir) LEAVE_FF(dj_old.fs, FR_NO_FILE);	/* Is root dir? */
-	mem_cpy(buf, dj_old.dir+DIR_Attr, 21);		/* Save the object information */
-
-	mem_cpy(&dj_new, &dj_old, sizeof(DIR));
-	res = follow_path(&dj_new, path_new);		/* Check new object */
-	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? */
-		res = dir_register(&dj_new);			/* Register the new object */
-		if (res == FR_OK) {
-			dir = dj_new.dir;					/* Copy object information into new entry */
-			mem_cpy(dir+13, buf+2, 19);
-			dir[DIR_Attr] = buf[0];
-			dj_old.fs->wflag = 1;
-			if (dir[DIR_Attr] & AM_DIR) {		/* Update .. entry in the directory if needed */
-				dw = clust2sect(dj_new.fs, (DWORD)LD_WORD(dir+DIR_FstClusHI) | LD_WORD(dir+DIR_FstClusLO));
-				if (!dw) {
-					res = FR_INT_ERR;
-				} else {
-					res = move_window(dj_new.fs, dw);
-					dir = dj_new.fs->win+32;
-					if (res == FR_OK && dir[1] == '.') {
-						dw = (dj_new.fs->fs_type == FS_FAT32 && dj_new.sclust == dj_new.fs->dirbase) ? 0 : dj_new.sclust;
-						ST_WORD(dir+DIR_FstClusLO, dw);
-						ST_WORD(dir+DIR_FstClusHI, dw >> 16);
-						dj_new.fs->wflag = 1;
-					}
-				}
-			}
-			if (res == FR_OK) {
-				res = dir_remove(&dj_old);			/* Remove old entry */
-				if (res == FR_OK)
-					res = sync(dj_old.fs);
-			}
-		}
-	}
-
-	LEAVE_FF(dj_old.fs, res);
-}
-
-#endif /* !_FS_READONLY */
-#endif /* _FS_MINIMIZE == 0 */
-#endif /* _FS_MINIMIZE <= 1 */
-#endif /* _FS_MINIMIZE <= 2 */
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Forward data to the stream directly (Available on only _FS_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 btr,						/* Number of bytes to forward */
-	UINT *bf						/* Pointer to number of bytes forwarded */
-)
-{
-	FRESULT res;
-	DWORD remain, clst, sect;
-	UINT rcnt;
-
-
-	*bf = 0;
-
-	res = validate(fp->fs, fp->id);					/* 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 (btr > remain) btr = (UINT)remain;			/* Truncate btr by remaining bytes */
-
-	for ( ;  btr && (*func)(NULL, 0);				/* Repeat until all data transferred or stream becomes busy */
-		fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
-		if ((fp->fptr % SS(fp->fs)) == 0) {			/* On the sector boundary? */
-			if (fp->csect >= fp->fs->csize) {		/* On the cluster boundary? */
-				clst = (fp->fptr == 0) ?			/* On the top of the file? */
-					fp->org_clust : get_cluster(fp->fs, fp->curr_clust);
-				if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
-				if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
-				fp->curr_clust = clst;				/* Update current cluster */
-				fp->csect = 0;						/* Reset sector address in the cluster */
-			}
-			fp->csect++;							/* Next sector address in the cluster */
-		}
-		sect = clust2sect(fp->fs, fp->curr_clust);	/* Get current data sector */
-		if (!sect) ABORT(fp->fs, FR_INT_ERR);
-		sect += fp->csect - 1;
-		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 > btr) rcnt = btr;
-		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			/* Multiple of 32 and <= 2048 */
-#define N_FATS		1			/* 1 or 2 */
-#define MAX_SECTOR	131072000UL	/* Maximum partition size */
-#define MIN_SECTOR	2000UL		/* Minimum partition size */
-
-
-FRESULT f_mkfs (
-	BYTE drv,			/* Logical drive number */
-	BYTE partition,		/* Partitioning rule 0:FDISK, 1:SFD */
-	WORD allocsize		/* Allocation unit size [bytes] */
-)
-{
-	static const DWORD sstbl[] = { 2048000, 1024000, 512000, 256000, 128000, 64000, 32000, 16000, 8000, 4000,   0 };
-	static const WORD cstbl[] =  {   32768,   16384,   8192,   4096,   2048, 16384,  8192,  4096, 2048, 1024, 512 };
-	BYTE fmt, m, *tbl;
-	DWORD b_part, b_fat, b_dir, b_data;		/* Area offset (LBA) */
-	DWORD n_part, n_rsv, n_fat, n_dir;		/* Area size */
-	DWORD n_clst, n;
-	WORD as;
-	FATFS *fs;
-	DSTATUS stat;
-
-
-	/* Check validity of the parameters */
-	if (drv >= _DRIVES) return FR_INVALID_DRIVE;
-	if (partition >= 2) return FR_MKFS_ABORTED;
-
-	/* Check mounted drive and clear work area */
-	fs = FatFs[drv];
-	if (!fs) return FR_NOT_ENABLED;
-	fs->fs_type = 0;
-	drv = LD2PD(drv);
-
-	/* Get disk statics */
-	stat = disk_initialize(drv);
-	if (stat & STA_NOINIT) return FR_NOT_READY;
-	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
-	if (disk_ioctl(drv, GET_SECTOR_COUNT, &n_part) != RES_OK || n_part < MIN_SECTOR)
-		return FR_MKFS_ABORTED;
-	if (n_part > MAX_SECTOR) n_part = MAX_SECTOR;
-	b_part = (!partition) ? 63 : 0;		/* Boot sector */
-	n_part -= b_part;
-#if _MAX_SS == 512
-	if (!allocsize) {					/* Auto selection of cluster size */
-		for (n = 0; n_part < sstbl[n]; n++) ;
-		allocsize = cstbl[n];
-	}
-#endif
-	for (as = 512; as <= 32768U && as != allocsize; as <<= 1);
-	if (as != allocsize) return FR_MKFS_ABORTED;
-#if _MAX_SS != 512						/* Check disk sector size */
-	if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
-		|| SS(fs) > _MAX_SS
-		|| SS(fs) > allocsize)
-		return FR_MKFS_ABORTED;
-#endif
-	allocsize /= SS(fs);		/* Number of sectors per cluster */
-
-	/* Pre-compute number of clusters and FAT type */
-	n_clst = n_part / allocsize;
-	fmt = FS_FAT12;
-	if (n_clst >= 0xFF5) fmt = FS_FAT16;
-	if (n_clst >= 0xFFF5) fmt = FS_FAT32;
-
-	/* Determine offset and size of FAT structure */
-	switch (fmt) {
-	case FS_FAT12:
-		n_fat = ((n_clst * 3 + 1) / 2 + 3 + SS(fs) - 1) / SS(fs);
-		n_rsv = 1 + partition;
-		n_dir = N_ROOTDIR * 32 / SS(fs);
-		break;
-	case FS_FAT16:
-		n_fat = ((n_clst * 2) + 4 + SS(fs) - 1) / SS(fs);
-		n_rsv = 1 + partition;
-		n_dir = N_ROOTDIR * 32 / SS(fs);
-		break;
-	default:
-		n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
-		n_rsv = 33 - partition;
-		n_dir = 0;
-	}
-	b_fat = b_part + n_rsv;			/* FATs start sector */
-	b_dir = b_fat + n_fat * N_FATS;	/* Directory start sector */
-	b_data = b_dir + n_dir;			/* Data start sector */
-
-	/* Align data start sector to erase block boundary (for flash memory media) */
-	if (disk_ioctl(drv, GET_BLOCK_SIZE, &n) != RES_OK) return FR_MKFS_ABORTED;
-	n = (b_data + n - 1) & ~(n - 1);
-	n_fat += (n - b_data) / N_FATS;
-	/* b_dir and b_data are no longer used below */
-
-	/* Determine number of cluster and final check of validity of the FAT type */
-	n_clst = (n_part - n_rsv - n_fat * N_FATS - n_dir) / allocsize;
-	if (   (fmt == FS_FAT16 && n_clst < 0xFF5)
-		|| (fmt == FS_FAT32 && n_clst < 0xFFF5))
-		return FR_MKFS_ABORTED;
-
-	/* Create partition table if needed */
-	if (!partition) {
-		DWORD n_disk = b_part + n_part;
-
-		tbl = fs->win+MBR_Table;
-		ST_DWORD(tbl, 0x00010180);		/* Partition start in CHS */
-		if (n_disk < 63UL * 255 * 1024) {	/* Partition end in CHS */
-			n_disk = n_disk / 63 / 255;
-			tbl[7] = (BYTE)n_disk;
-			tbl[6] = (BYTE)((n_disk >> 2) | 63);
-		} else {
-			ST_WORD(&tbl[6], 0xFFFF);
-		}
-		tbl[5] = 254;
-		if (fmt != FS_FAT32)			/* System ID */
-			tbl[4] = (n_part < 0x10000) ? 0x04 : 0x06;
-		else
-			tbl[4] = 0x0c;
-		ST_DWORD(tbl+8, 63);			/* Partition start in LBA */
-		ST_DWORD(tbl+12, n_part);		/* Partition size in LBA */
-		ST_WORD(tbl+64, 0xAA55);		/* Signature */
-		if (disk_write(drv, fs->win, 0, 1) != RES_OK)
-			return FR_DISK_ERR;
-	}
-
-	/* Create boot record */
-	tbl = fs->win;								/* Clear buffer */
-	mem_set(tbl, 0, SS(fs));
-	ST_DWORD(tbl+BS_jmpBoot, 0x90FEEB);			/* Boot code (jmp $, nop) */
-	ST_WORD(tbl+BPB_BytsPerSec, SS(fs));		/* Sector size */
-	tbl[BPB_SecPerClus] = (BYTE)allocsize;		/* Sectors per cluster */
-	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv);			/* Reserved sectors */
-	tbl[BPB_NumFATs] = N_FATS;					/* Number of FATs */
-	ST_WORD(tbl+BPB_RootEntCnt, SS(fs) / 32 * n_dir); /* Number of rootdir entries */
-	if (n_part < 0x10000) {						/* Number of total sectors */
-		ST_WORD(tbl+BPB_TotSec16, n_part);
-	} else {
-		ST_DWORD(tbl+BPB_TotSec32, n_part);
-	}
-	tbl[BPB_Media] = 0xF8;						/* Media descripter */
-	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_part);			/* Hidden sectors */
-	n = get_fattime();							/* Use current time as a VSN */
-	if (fmt != FS_FAT32) {
-		ST_DWORD(tbl+BS_VolID, n);				/* Volume serial number */
-		ST_WORD(tbl+BPB_FATSz16, n_fat);		/* Number of secters 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 lavel, FAT signature */
-	} else {
-		ST_DWORD(tbl+BS_VolID32, n);			/* Volume serial number */
-		ST_DWORD(tbl+BPB_FATSz32, n_fat);		/* Number of secters per FAT */
-		ST_DWORD(tbl+BPB_RootClus, 2);			/* Root directory cluster (2) */
-		ST_WORD(tbl+BPB_FSInfo, 1);				/* FSInfo record offset (bs+1) */
-		ST_WORD(tbl+BPB_BkBootSec, 6);			/* Backup boot record offset (bs+6) */
-		tbl[BS_DrvNum32] = 0x80;				/* Drive number */
-		tbl[BS_BootSig32] = 0x29;				/* Extended boot signature */
-		mem_cpy(tbl+BS_VolLab32, "NO NAME    FAT32   ", 19);	/* Volume lavel, FAT signature */
-	}
-	ST_WORD(tbl+BS_55AA, 0xAA55);				/* Signature */
-	if (disk_write(drv, tbl, b_part+0, 1) != RES_OK)
-		return FR_DISK_ERR;
-	if (fmt == FS_FAT32)
-		disk_write(drv, tbl, b_part+6, 1);
-
-	/* Initialize FAT area */
-	for (m = 0; m < N_FATS; m++) {
-		mem_set(tbl, 0, SS(fs));		/* 1st sector of the FAT  */
-		if (fmt != FS_FAT32) {
-			n = (fmt == FS_FAT12) ? 0x00FFFFF8 : 0xFFFFFFF8;
-			ST_DWORD(tbl, n);				/* Reserve cluster #0-1 (FAT12/16) */
-		} else {
-			ST_DWORD(tbl+0, 0xFFFFFFF8);	/* Reserve cluster #0-1 (FAT32) */
-			ST_DWORD(tbl+4, 0xFFFFFFFF);
-			ST_DWORD(tbl+8, 0x0FFFFFFF);	/* Reserve cluster #2 for root dir */
-		}
-		if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
-			return FR_DISK_ERR;
-		mem_set(tbl, 0, SS(fs));		/* Following FAT entries are filled by zero */
-		for (n = 1; n < n_fat; n++) {
-			if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
-				return FR_DISK_ERR;
-		}
-	}
-
-	/* Initialize Root directory */
-	m = (BYTE)((fmt == FS_FAT32) ? allocsize : n_dir);
-	do {
-		if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
-			return FR_DISK_ERR;
-	} while (--m);
-
-	/* Create FSInfo record if needed */
-	if (fmt == FS_FAT32) {
-		ST_WORD(tbl+BS_55AA, 0xAA55);
-		ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
-		ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
-		ST_DWORD(tbl+FSI_Free_Count, n_clst - 1);
-		ST_DWORD(tbl+FSI_Nxt_Free, 0xFFFFFFFF);
-		disk_write(drv, tbl, b_part+1, 1);
-		disk_write(drv, tbl, b_part+7, 1);
-	}
-
-	return (disk_ioctl(drv, CTRL_SYNC, (void*)NULL) == RES_OK) ? FR_OK : FR_DISK_ERR;
-}
-
-#endif /* _USE_MKFS && !_FS_READONLY */
-
-
-
-
-#if _USE_STRFUNC
-/*-----------------------------------------------------------------------*/
-/* Get a string from the file                                            */
-/*-----------------------------------------------------------------------*/
-char* f_gets (
-	char* buff,	/* Pointer to the string buffer to read */
-	int len,	/* Size of string buffer */
-	FIL* fil	/* Pointer to the file object */
-)
-{
-	int i = 0;
-	char *p = buff;
-	UINT rc;
-
-
-	while (i < len - 1) {			/* Read bytes until buffer gets filled */
-		f_read(fil, p, 1, &rc);
-		if (rc != 1) break;			/* Break when no data to read */
-#if _USE_STRFUNC >= 2
-		if (*p == '\r') continue;	/* Strip '\r' */
-#endif
-		i++;
-		if (*p++ == '\n') break;	/* Break when reached end of line */
-	}
-	*p = 0;
-	return i ? buff : NULL;			/* 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 (
-	int chr,	/* A character to be output */
-	FIL* fil	/* Ponter to the file object */
-)
-{
-	UINT bw;
-	char c;
-
-
-#if _USE_STRFUNC >= 2
-	if (chr == '\n') f_putc ('\r', fil);	/* LF -> CRLF conversion */
-#endif
-	if (!fil) {	/* Special value may be used to switch the destination to any other device */
-	/*	put_console(chr);	*/
-		return chr;
-	}
-	c = (char)chr;
-	f_write(fil, &c, 1, &bw);	/* Write a byte to the file */
-	return bw ? chr : EOF;		/* Return the result */
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Put a string to the file                                              */
-/*-----------------------------------------------------------------------*/
-int f_puts (
-	const char* str,	/* Pointer to the string to be output */
-	FIL* fil			/* Pointer to the file object */
-)
-{
-	int n;
-
-
-	for (n = 0; *str; str++, n++) {
-		if (f_putc(*str, fil) == EOF) return EOF;
-	}
-	return n;
-}
-
-
-
-
-/*-----------------------------------------------------------------------*/
-/* Put a formatted string to the file                                    */
-/*-----------------------------------------------------------------------*/
-int f_printf (
-	FIL* fil,			/* Pointer to the file object */
-	const char* str,	/* Pointer to the format string */
-	...					/* Optional arguments... */
-)
-{
-	va_list arp;
-	UCHAR c, f, r;
-	ULONG val;
-	char s[16];
-	int i, w, res, 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 cahracter */
-			cc = f_putc(c, fil);
-			if (cc != EOF) cc = 1;
-			continue;
-		}
-		w = f = 0;
-		c = *str++;
-		if (c == '0') {				/* Flag: '0' padding */
-			f = 1; c = *str++;
-		}
-		while (c >= '0' && c <= '9') {	/* Precision */
-			w = w * 10 + (c - '0');
-			c = *str++;
-		}
-		if (c == 'l') {				/* Prefix: Size is long int */
-			f |= 2; c = *str++;
-		}
-		if (c == 's') {				/* Type is string */
-			cc = f_puts(va_arg(arp, char*), fil);
-			continue;
-		}
-		if (c == 'c') {				/* Type is character */
-			cc = f_putc(va_arg(arp, int), fil);
-			if (cc != EOF) cc = 1;
-			continue;
-		}
-		r = 0;
-		if (c == 'd') r = 10;		/* Type is signed decimal */
-		if (c == 'u') r = 10;		/* Type is unsigned decimal */
-		if (c == 'X') r = 16;		/* Type is unsigned hexdecimal */
-		if (r == 0) break;			/* Unknown type */
-		if (f & 2) {				/* Get the value */
-			val = (ULONG)va_arg(arp, long);
-		} else {
-			val = (c == 'd') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int);
-		}
-		/* Put numeral string */
-		if (c == 'd') {
-			if (val & 0x80000000) {
-				val = 0 - val;
-				f |= 4;
-			}
-		}
-		i = sizeof(s) - 1; s[i] = 0;
-		do {
-			c = (UCHAR)(val % r + '0');
-			if (c > '9') c += 7;
-			s[--i] = c;
-			val /= r;
-		} while (i && val);
-		if (i && (f & 4)) s[--i] = '-';
-		w = sizeof(s) - 1 - w;
-		while (i && i > w) s[--i] = (f & 1) ? '0' : ' ';
-		cc = f_puts(&s[i], fil);
-	}
-
-	va_end(arp);
-	return (cc == EOF) ? cc : res;
-}
-
-#endif /* !_FS_READONLY */
-#endif /* _USE_STRFUNC */
+/*----------------------------------------------------------------------------/
+/  FatFs - FAT file system module  R0.07a                    (C)ChaN, 2009
+/-----------------------------------------------------------------------------/
+/ 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) 2009, 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 use 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) patition.
+/ 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 algolithm 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 plysical 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 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,'09 R0.07a Separated out OS dependent code on reentrant cfg.
+/                   Added multiple sector size support.
+/---------------------------------------------------------------------------*/
+
+#include "ff.h"			/* FatFs configurations and declarations */
+#include "diskio.h"		/* Declarations of low level disk I/O functions */
+#include "debug.h"         /* FatFs configurations and declarations */
+
+
+/*--------------------------------------------------------------------------
+
+   Module Private Definitions
+
+---------------------------------------------------------------------------*/
+
+#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); }
+
+#ifndef NULL
+#define	NULL	0
+#endif
+
+
+/*--------------------------------------------------------------------------
+
+   Private Work Area
+
+---------------------------------------------------------------------------*/
+
+static
+FATFS *FatFs[_DRIVES];	/* Pointer to the file system objects (logical drives) */
+static
+WORD Fsid;				/* File system mount ID */
+
+
+#if _USE_LFN == 1	/* LFN with static LFN working buffer */
+static
+WORD LfnBuf[_MAX_LFN + 1];
+#define	NAMEBUF(sp,lp)	BYTE sp[12]; WCHAR *lp = LfnBuf
+#define INITBUF(dj,sp,lp)	dj.fn = sp; dj.lfn = lp
+
+#elif _USE_LFN > 1	/* LFN with dynamic LFN working buffer */
+#define	NAMEBUF(sp,lp)	BYTE sp[12]; WCHAR lbuf[_MAX_LFN + 1], *lp = lbuf
+#define INITBUF(dj,sp,lp)	dj.fn = sp; dj.lfn = lp
+
+#else				/* No LFN */
+#define	NAMEBUF(sp,lp)	BYTE sp[12]
+#define INITBUF(dj,sp,lp)	dj.fn = sp
+
+#endif
+
+
+
+
+/*--------------------------------------------------------------------------
+
+   Private Functions
+
+---------------------------------------------------------------------------*/
+
+
+/*-----------------------------------------------------------------------*/
+/* String functions                                                      */
+/*-----------------------------------------------------------------------*/
+
+/* Copy memory to memory */
+static
+void mem_cpy (void* dst, const void* src, int cnt) {
+	char *d = (char*)dst;
+	const char *s = (const char *)src;
+	while (cnt--) *d++ = *s++;
+}
+
+/* Fill memory */
+static
+void mem_set (void* dst, int val, int cnt) {
+	char *d = (char*)dst;
+	while (cnt--) *d++ = (char)val;
+}
+
+/* Compare memory to memory */
+static
+int mem_cmp (const void* dst, const void* src, int cnt) {
+	const char *d = (const char *)dst, *s = (const char *)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
+BOOL 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 (res != FR_NOT_ENABLED &&
+		res != FR_INVALID_DRIVE &&
+		res != FR_INVALID_OBJECT &&
+		res != FR_TIMEOUT) {
+		ff_rel_grant(fs->sobj);
+	}
+}
+#endif
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Change window offset                                                  */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT move_window (
+	FATFS *fs,		/* File system object */
+	DWORD sector	/* Sector number to make apperance in the fs->win[] */
+)					/* Move to zero only writes back dirty window */
+{
+	DWORD wsect;
+
+
+	wsect = fs->winsect;
+	if (wsect != sector) {	/* Changed current window */
+#if !_FS_READONLY
+		if (fs->wflag) {	/* Write back dirty window if needed */
+			if (disk_write(fs->drive, fs->win, wsect, 1) != RES_OK)
+				return FR_DISK_ERR;
+			fs->wflag = 0;
+			if (wsect < (fs->fatbase + fs->sects_fat)) {	/* In FAT area */
+				BYTE nf;
+				for (nf = fs->n_fats; nf >= 2; nf--) {	/* Refrect the change to FAT copy */
+					wsect += fs->sects_fat;
+					disk_write(fs->drive, fs->win, wsect, 1);
+				}
+			}
+		}
+#endif
+		if (sector) {
+			if (disk_read(fs->drive, fs->win, sector, 1) != RES_OK)
+				return FR_DISK_ERR;
+			fs->winsect = sector;
+		}
+	}
+
+	return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Clean-up cached data                                                  */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT sync (	/* FR_OK: successful, FR_DISK_ERR: failed */
+	FATFS *fs	/* File system object */
+)
+{
+	FRESULT res;
+
+
+	res = move_window(fs, 0);
+	if (res == FR_OK) {
+		/* Update FSInfo sector if needed */
+		if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
+			fs->winsect = 0;
+			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);
+			disk_write(fs->drive, 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->drive, CTRL_SYNC, (void*)NULL) != RES_OK)
+			res = FR_DISK_ERR;
+	}
+
+	return res;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get a cluster status                                                  */
+/*-----------------------------------------------------------------------*/
+
+static
+DWORD get_cluster (	/* 0xFFFFFFFF:Disk error, 1:Interal error, Else:Cluster status */
+	FATFS *fs,		/* File system object */
+	DWORD clst		/* Cluster# to get the link information */
+)
+{
+	WORD wc, bc;
+	DWORD fsect;
+
+
+	if (clst < 2 || clst >= fs->max_clust)	/* Check cluster address range */
+		return 1;
+
+	fsect = fs->fatbase;
+	switch (fs->fs_type) {
+	case FS_FAT12 :
+		bc = (WORD)clst * 3 / 2;
+		if (move_window(fs, fsect + (bc / SS(fs)))) break;
+		wc = fs->win[bc & (SS(fs) - 1)]; bc++;
+		if (move_window(fs, fsect + (bc / SS(fs)))) break;
+		wc |= (WORD)fs->win[bc & (SS(fs) - 1)] << 8;
+		return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
+
+	case FS_FAT16 :
+		if (move_window(fs, fsect + (clst / (SS(fs) / 2)))) break;
+		return LD_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)]);
+
+	case FS_FAT32 :
+		if (move_window(fs, fsect + (clst / (SS(fs) / 4)))) break;
+		return LD_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)]) & 0x0FFFFFFF;
+	}
+
+	return 0xFFFFFFFF;	/* An error occured at the disk I/O layer */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Change a cluster status                                               */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT put_cluster (
+	FATFS *fs,		/* File system object */
+	DWORD clst,		/* Cluster# to be changed (must be 2 to fs->max_clust-1) */
+	DWORD val		/* New value to mark the cluster */
+)
+{
+	WORD bc;
+	BYTE *p;
+	DWORD fsect;
+	FRESULT res;
+
+
+	if (clst < 2 || clst >= fs->max_clust) {	/* Check cluster address range */
+		res = FR_INT_ERR;
+
+	} else {
+		fsect = fs->fatbase;
+		switch (fs->fs_type) {
+		case FS_FAT12 :
+			bc = (WORD)clst * 3 / 2;
+			res = move_window(fs, fsect + (bc / SS(fs)));
+			if (res != FR_OK) break;
+			p = &fs->win[bc & (SS(fs) - 1)];
+			*p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val;
+			bc++;
+			fs->wflag = 1;
+			res = move_window(fs, fsect + (bc / SS(fs)));
+			if (res != FR_OK) break;
+			p = &fs->win[bc & (SS(fs) - 1)];
+			*p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F));
+			break;
+
+		case FS_FAT16 :
+			res = move_window(fs, fsect + (clst / (SS(fs) / 2)));
+			if (res != FR_OK) break;
+			ST_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)], (WORD)val);
+			break;
+
+		case FS_FAT32 :
+			res = move_window(fs, fsect + (clst / (SS(fs) / 4)));
+			if (res != FR_OK) break;
+			ST_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)], val);
+			break;
+
+		default :
+			res = FR_INT_ERR;
+		}
+		fs->wflag = 1;
+	}
+
+	return res;
+}
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Remove a cluster chain                                                */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT remove_chain (
+	FATFS *fs,			/* File system object */
+	DWORD clst			/* Cluster# to remove chain from */
+)
+{
+	FRESULT res;
+	DWORD nxt;
+
+
+	if (clst < 2 || clst >= fs->max_clust) {	/* Check cluster address range */
+		res = FR_INT_ERR;
+
+	} else {
+		res = FR_OK;
+		while (clst < fs->max_clust) {			/* Not a last link? */
+			nxt = get_cluster(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_cluster(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;
+			}
+			clst = nxt;	/* Next cluster */
+		}
+	}
+
+	return res;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* 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, mcl;
+
+
+	mcl = fs->max_clust;
+	if (clst == 0) {		/* Create new chain */
+		scl = fs->last_clust;			/* Get suggested start point */
+		if (scl == 0 || scl >= mcl) scl = 1;
+	}
+	else {					/* Stretch existing chain */
+		cs = get_cluster(fs, clst);		/* Check the cluster status */
+		if (cs < 2) return 1;			/* It is an invalid cluster */
+		if (cs < mcl) return cs;		/* It is already followed by next cluster */
+		scl = clst;
+	}
+
+	ncl = scl;				/* Start cluster */
+	for (;;) {
+		ncl++;							/* Next cluster */
+		if (ncl >= mcl) {				/* Wrap around */
+			ncl = 2;
+			if (ncl > scl) return 0;	/* No free custer */
+		}
+		cs = get_cluster(fs, ncl);		/* Get the cluster status */
+		if (cs == 0) break;				/* Found a free cluster */
+		if (cs == 0xFFFFFFFF || cs == 1)/* An error occured */
+			return cs;
+		if (ncl == scl) return 0;		/* No free custer */
+	}
+
+	if (put_cluster(fs, ncl, 0x0FFFFFFF))	/* Mark the new cluster "in use" */
+		return 0xFFFFFFFF;
+	if (clst != 0) {						/* Link it to previous one if needed */
+		if (put_cluster(fs, clst, ncl))
+			return 0xFFFFFFFF;
+	}
+
+	fs->last_clust = ncl;				/* Update FSINFO */
+	if (fs->free_clust != 0xFFFFFFFF) {
+		fs->free_clust--;
+		fs->fsi_flag = 1;
+	}
+
+	return ncl;		/* Return new cluster number */
+}
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get sector# from cluster#                                             */
+/*-----------------------------------------------------------------------*/
+
+static
+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->max_clust - 2)) return 0;		/* Invalid cluster# */
+	return clst * fs->csize + fs->database;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Seek directory index                                                  */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT dir_seek (
+	DIR *dj,		/* Pointer to directory object */
+	WORD idx		/* Directory index number */
+)
+{
+	DWORD clst;
+	WORD ic;
+
+
+	dj->index = idx;
+	clst = dj->sclust;
+	if (clst == 1 || clst >= dj->fs->max_clust)	/* Check start cluster range */
+		return FR_INT_ERR;
+
+	if (clst == 0) {	/* Static table */
+		if (idx >= dj->fs->n_rootdir)		/* Index is out of range */
+			return FR_INT_ERR;
+		dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / 32);
+	}
+	else {				/* Dynamic table */
+		ic = SS(dj->fs) / 32 * dj->fs->csize;	/* Indexes per cluster */
+		while (idx >= ic) {	/* Follow cluster chain */
+			clst = get_cluster(dj->fs, clst);			/* Get next cluster */
+			if (clst == 0xFFFFFFFF) return FR_DISK_ERR;	/* Disk error */
+			if (clst < 2 || clst >= dj->fs->max_clust)	/* 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) / 32);
+	}
+	dj->dir = dj->fs->win + (idx % (SS(dj->fs) / 32)) * 32;
+
+	return FR_OK;	/* Seek succeeded */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Move directory index next                                             */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT dir_next (	/* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not streach */
+	DIR *dj,		/* Pointer to directory object */
+	BOOL streach	/* FALSE: Do not streach table, TRUE: Streach table if needed */
+)
+{
+	DWORD clst;
+	WORD i;
+
+
+	i = dj->index + 1;
+	if (!i || !dj->sect)	/* Report EOT when index has reached 65535 */
+		return FR_NO_FILE;
+
+	if (!(i % (SS(dj->fs) / 32))) {	/* Sector changed? */
+		dj->sect++;					/* Next sector */
+
+		if (dj->sclust == 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) / 32)) & (dj->fs->csize - 1)) == 0) {	/* Cluster changed? */
+				clst = get_cluster(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->max_clust) {				/* When it reached end of dinamic table */
+#if !_FS_READONLY
+					BYTE c;
+					if (!streach) return FR_NO_FILE;			/* When do not streach, report EOT */
+					clst = create_chain(dj->fs, dj->clust);		/* Streach 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 streached table */
+					if (move_window(dj->fs, 0)) 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 (move_window(dj->fs, 0)) 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) / 32)) * 32;
+
+	return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* 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
+BOOL test_lfn (			/* TRUE:Matched, FALSE:Not matched */
+	WCHAR *lfnbuf,		/* Pointer to the LFN to be compared */
+	BYTE *dir			/* Pointer to the directory entry containing a part of LFN */
+)
+{
+	int i, s;
+	WCHAR wc1, wc2;
+
+
+	i = ((dir[LDIR_Ord] & 0xBF) - 1) * 13;	/* Offset in the LFN buffer */
+	s = 0;
+	do {
+		if (i >= _MAX_LFN) return FALSE;	/* Out of buffer range? */
+		wc1 = LD_WORD(dir+LfnOfs[s]);		/* Get both characters to compare */
+		wc2 = lfnbuf[i++];
+		if (IsLower(wc1)) wc1 -= 0x20;		/* Compare it (ignore case) */
+		if (IsLower(wc2)) wc2 -= 0x20;
+		if (wc1 != wc2) return FALSE;
+	} while (++s < 13 && wc1);				/* Repeat until last char or a NUL char is processed */
+
+	return TRUE;							/* The LFN entry matched */
+}
+
+
+
+static
+BOOL pick_lfn (			/* TRUE:Succeeded, FALSE:Buffer overflow */
+	WCHAR *lfnbuf,		/* Pointer to the Unicode-LFN buffer */
+	BYTE *dir			/* Pointer to the directory entry */
+)
+{
+	int i, s;
+	WCHAR wchr;
+
+
+	i = ((dir[LDIR_Ord] & 0xBF) - 1) * 13;	/* Offset in the LFN buffer */
+	s = 0;
+	do {
+		wchr = LD_WORD(dir+LfnOfs[s]);		/* Get an LFN char */
+		if (!wchr) break;					/* End of LFN? */
+		if (i >= _MAX_LFN) return FALSE;	/* Buffer overflow */
+		lfnbuf[i++] = wchr;					/* Store it */
+	} while (++s < 13);						/* Repeat until last char is copied */
+	if (dir[LDIR_Ord] & 0x40) lfnbuf[i] = 0;	/* Put terminator if last LFN entry */
+
+	return TRUE;
+}
+
+
+#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 */
+)
+{
+	int i, s;
+	WCHAR wchr;
+
+
+	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;				/* Offset in the LFN buffer */
+	s = wchr = 0;
+	do {
+		if (wchr != 0xFFFF) wchr = lfnbuf[i++];	/* Get an effective char */
+		ST_WORD(dir+LfnOfs[s], wchr);	/* Put it */
+		if (!wchr) wchr = 0xFFFF;	/* Padding chars following last char */
+	} while (++s < 13);
+	if (wchr == 0xFFFF || !lfnbuf[i]) ord |= 0x40;/* 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 genartated SFN */
+	const BYTE *src,	/* Pointer to source SFN to be modified */
+	const WCHAR *lfn,	/* Pointer to LFN */
+	WORD num			/* Sequense number */
+)
+{
+	char ns[8];
+	int i, j;
+
+
+	mem_cpy(dst, src, 11);
+
+	if (num > 5) {	/* On many collisions, generate a hash number instead of sequencial number */
+		do num = (num >> 1) + (num << 15) + (WORD)*lfn++; while (*lfn);
+	}
+
+	/* itoa */
+	i = 7;
+	do {
+		ns[i--] = (num % 10) + '0';
+		num /= 10;
+	} while (num);
+	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;
+	int n = 11;
+
+	do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
+	return sum;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* 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 a, c, lfen, ord, sum, *dir;
+
+
+	res = dir_seek(dj, 0);			/* Rewind directory object */
+	if (res != FR_OK) return res;
+
+	ord = sum = 0xFF; lfen = *(dj->fn+11) & 1;
+	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 */
+		a = dir[DIR_Attr] & AM_MASK;
+#if _USE_LFN	/* LFN configuration */
+		if (c == 0xE5 || c == '.' || ((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 & 0x40) {		/* Is it start of LFN sequence? */
+						sum = dir[LDIR_Chksum];
+						c &= 0xBF; ord = c;		/* LFN start order */
+						dj->lfn_idx = dj->index;
+					}
+					/* Check LFN validity. Compare LFN if it is out of 8.3 format */
+					ord = (c == ord && sum == dir[LDIR_Chksum] && (!lfen || test_lfn(dj->lfn, dir))) ? ord - 1 : 0xFF;
+				}
+			} else {					/* An SFN entry is found */
+				if (ord || sum != sum_sfn(dir)) {	/* Did not LFN match? */
+					dj->lfn_idx = 0xFFFF;
+					ord = 0xFF;
+				}
+				if (lfen) {				/* Match LFN if it is out of 8.3 format */
+					if (ord == 0) break;
+				} else {				/* Match SFN if LFN is in 8.3 format */
+					if (!mem_cmp(dir, dj->fn, 11)) break;
+				}
+			}
+		}
+#else	/* Non LFN configuration */
+		if (c != 0xE5 && c != '.' && !(a & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
+			break;
+#endif
+		res = dir_next(dj, FALSE);				/* Next entry */
+	} while (res == FR_OK);
+
+	return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read an object from the directory                                     */
+/*-----------------------------------------------------------------------*/
+#if _FS_MINIMIZE <= 2
+static
+FRESULT dir_read (
+	DIR *dj			/* Pointer to the directory object to store read object name */
+)
+{
+	FRESULT res;
+	BYTE a, c, ord, sum, *dir;
+
+
+	ord = sum = 0xFF;
+	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 == 0xE5 || c == '.' || ((a & AM_VOL) && a != AM_LFN)) {	/* An entry without valid data */
+			ord = 0xFF;
+		} else {
+			if (a == AM_LFN) {			/* An LFN entry is found */
+				if (c & 0x40) {			/* Is it start of LFN sequence? */
+					sum = dir[LDIR_Chksum];
+					c &= 0xBF; 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 entry? */
+					dj->lfn_idx = 0xFFFF;		/* No LFN. */
+				break;
+			}
+		}
+#else	/* Non LFN configuration */
+		if (c != 0xE5 && c != '.' && !(a & AM_VOL))	/* Is it a valid entry? */
+			break;
+#endif
+		res = dir_next(dj, FALSE);				/* Next entry */
+		if (res != FR_OK) break;
+	}
+
+	if (res != FR_OK) dj->sect = 0;
+
+	return res;
+}
+#endif
+
+
+
+/*-----------------------------------------------------------------------*/
+/* 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;
+	BYTE c, *dir;
+
+#if _USE_LFN	/* LFN configuration */
+	WORD n, ne, is;
+	BYTE sn[12], *fn, sum;
+	WCHAR *lfn;
+
+	fn = dj->fn; lfn = dj->lfn;
+	mem_cpy(sn, fn, 12);
+	if (sn[11] & 1) {		/* When LFN is out of 8.3 format, generate a numbered name */
+		fn[11] = 0; dj->lfn = NULL;			/* 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[11] = sn[11]; dj->lfn = lfn;
+	}
+	if (sn[11] & 2) {		/* When eliminate LFN, reserve only an SFN entry. */
+		ne = 1;
+	} else {				/* Otherwise reserve an SFN + LFN entries. */
+		for (ne = 0; lfn[ne]; ne++) ;
+		ne = (ne + 25) / 13;
+	}
+
+	/* Reserve contiguous entries */
+	res = dir_seek(dj, 0);
+	if (res != FR_OK) return res;
+	n = is = 0;
+	do {
+		res = move_window(dj->fs, dj->sect);
+		if (res != FR_OK) break;
+		c = *dj->dir;	/* Check the entry status */
+		if (c == 0xE5 || c == 0) {	/* Is it a blank entry? */
+			if (n == 0) is = dj->index;	/* First index of the contigulus entry */
+			if (++n == ne) break;	/* A contiguous entry that requiered count is found */
+		} else {
+			n = 0;					/* Not a blank entry. Restart to search */
+		}
+		res = dir_next(dj, TRUE);	/* Next entry with table streach */
+	} while (res == FR_OK);
+
+	if (res == FR_OK && ne > 1) {	/* Initialize LFN entry if needed */
+		res = dir_seek(dj, is);
+		if (res == FR_OK) {
+			sum = sum_sfn(dj->fn);	/* Sum of the SFN tied to the LFN */
+			ne--;
+			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, FALSE);	/* Next entry */
+			} while (res == FR_OK && --ne);
+		}
+	}
+
+#else	/* Non LFN configuration */
+	res = dir_seek(dj, 0);
+	if (res == FR_OK) {
+		do {	/* Find a blank entry for the SFN */
+			res = move_window(dj->fs, dj->sect);
+			if (res != FR_OK) break;
+			c = *dj->dir;
+			if (c == 0xE5 || c == 0) break;	/* Is it a blank entry? */
+			res = dir_next(dj, TRUE);		/* Next entry with table streach */
+		} while (res == FR_OK);
+	}
+#endif
+
+	if (res == FR_OK) {		/* Initialize the SFN entry */
+		res = move_window(dj->fs, dj->sect);
+		if (res == FR_OK) {
+			dir = dj->dir;
+			mem_set(dir, 0, 32);			/* Clean the entry */
+			mem_cpy(dir, dj->fn, 11);	/* Put SFN */
+			dir[DIR_NTres] = *(dj->fn+11) & 0x18;	/* Put NT flag */
+			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_seek(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 = 0xE5;				/* Mark the entry "deleted" */
+			dj->fs->wflag = 1;
+			if (dj->index >= i) break;		/* When SFN is deleted, all entries of the object is deleted. */
+			res = dir_next(dj, FALSE);		/* Next entry */
+		} while (res == FR_OK);
+		if (res == FR_NO_FILE) res = FR_INT_ERR;
+	}
+
+#else			/* Non LFN configuration */
+	res = dir_seek(dj, dj->index);
+	if (res == FR_OK) {
+		res = move_window(dj->fs, dj->sect);
+		if (res == FR_OK) {
+			*dj->dir = 0xE5;				/* 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 char **path	/* Pointer to pointer to the segment in the path string */
+)
+{
+#if _USE_LFN
+	BYTE c, b, cf, *sfn;
+	WCHAR w, *lfn;
+	int i, ni, si, di;
+	const char *p;
+
+	/* Create LFN in Unicode */
+	si = di = 0;
+	p = *path;
+	lfn = dj->lfn;
+	for (;;) {
+		w = (BYTE)p[si++];				/* Get a character */
+		if (w < ' ' || w == '/' || w == '\\') break;	/* Break on end of segment */
+		if (IsDBCS1(w)) {				/* If it is DBC 1st byte */
+			c = p[si++];				/* Get 2nd byte */
+			if (!IsDBCS2(c))			/* Reject invalid DBC */
+				return FR_INVALID_NAME;
+			w = (w << 8) + c;
+		} else {
+			if (chk_chr("\"*:<>\?|\x7F", w))	/* Reject unallowable chars for LFN */
+				return FR_INVALID_NAME;
+		}
+		w = ff_convert(w, 1);			/* Convert OEM to Unicode, store it */
+		if (!w || di >= _MAX_LFN)		/* Reject invalid code or too long name */
+			return FR_INVALID_NAME;
+		lfn[di++] = w;
+	}
+	*path = &p[si];						/* Rerurn pointer to the next segment */
+	cf = (w < ' ') ? 4 : 0;				/* Set last segment flag if end of path */
+
+	while (di) {						/* Strip trailing spaces and dots */
+		w = lfn[di - 1];
+		if (w != ' ' && w != '.') break;
+		di--;
+	}
+	if (!di) return FR_INVALID_NAME;	/* Reject null string */
+
+	lfn[di] = 0;						/* LFN is created */
+
+	/* Create SFN in directory form */
+	sfn = dj->fn;
+	mem_set(sfn, ' ', 11);
+	for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ;	/* Strip leading spaces and dots */
+	if (si) cf |= 1;
+	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 == 0) break;				/* Break when enf of the LFN */
+		if (w == ' ' || (w == '.' && si != di)) {	/* Remove spaces and dots */
+			cf |= 1; continue;
+		}
+		if (i >= ni || si == di) {		/* Here is extension or end of SFN */
+			if (ni == 11) {				/* Extension is longer than 3 bytes */
+				cf |= 1; break;
+			}
+			if (si != di) cf |= 1;		/* File name is longer than 8 bytes */
+			if (si > di) break;			/* No extension */
+			si = di; i = 8; ni = 11;	/* Enter extension section */
+			b <<= 2; continue;
+		}
+		w = ff_convert(w, 0);			/* Unicode -> OEM code */
+		if (w >= 0x80) cf |= 0x20;		/* If there is any extended char, force create an LFN */
+		if (w >= 0x100) {				/* Double byte char */
+			if (i >= ni - 1) {
+				cf |= 1; i = ni; continue;
+			}
+			sfn[i++] = (BYTE)(w >> 8);
+		} else {						/* Single byte char */
+			if (chk_chr("+,;[=]", w)) {	/* Replace unallowable chars for SFN */
+				w = '_'; cf |= 1;
+			} else {
+				if (IsUpper(w)) {		/* Large capital */
+					b |= 2;
+				} else {
+					if (IsLower(w)) {	/* Small capital */
+						b |= 1; w -= 0x20;
+					}
+				}
+			}
+		}
+		sfn[i++] = (BYTE)w;
+	}
+	if (sfn[0] == 0xE5) sfn[0] = 0x05;	/* When first char collides with 0xE5, replace it with 0x05 */
+
+	if (ni == 8) b <<= 2;
+	if ((cf & 0x21) == 0) {	/* When LFN is in 8.3 format without extended char, NT flags are created */
+		if ((b & 0x03) == 0x01) cf |= 0x10;	/* NT flag (Extension has only small capital) */
+		if ((b & 0x0C) == 0x04) cf |= 0x08;	/* NT flag (Filename has only small capital) */
+		if ((b & 0x0C) != 0x0C && (b & 0x03) != 0x03) cf |= 2;	/* Eliminate LFN when non composite capitals */
+	}
+
+	sfn[11] = cf;		/* SFN is created */
+
+#else
+	BYTE c, d, b, *sfn;
+	int ni, si, i;
+	const char *p;
+
+	/* Create file name in directory form */
+	sfn = dj->fn;
+	mem_set(sfn, ' ', 11);
+	si = i = b = 0; ni = 8;
+	p = *path;
+	for (;;) {
+		c = 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) b |= 3;			/* If there is any extended char, eliminate NT flag */
+		if (IsDBCS1(c)) {				/* If it is DBC 1st byte */
+			d = 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 {
+			if (chk_chr(" +,;[=]\"*:<>\?|\x7F", c))	/* Reject unallowable chrs for SFN */
+				return FR_INVALID_NAME;
+			if (IsUpper(c)) {
+				b |= 2;
+			} else {
+				if (IsLower(c)) {
+					b |= 1; c -= 0x20;
+				}
+			}
+			sfn[i++] = c;
+		}
+	}
+	*path = &p[si];						/* Rerurn pointer to the next segment */
+	c = (c < ' ') ? 4 : 0;				/* Set last segment flag if end of path */
+
+	if (!i) return FR_INVALID_NAME;		/* Reject null string */
+	if (sfn[0] == 0xE5) sfn[0] = 0x05;	/* When first char collides with 0xE5, replace it with 0x05 */
+
+	if (ni == 8) b <<= 2;
+	if ((b & 0x03) == 0x01) c |= 0x10;	/* NT flag (Extension has only small capital) */
+	if ((b & 0x0C) == 0x04) c |= 0x08;	/* NT flag (Filename has only small capital) */
+
+	sfn[11] = c;		/* Store NT flag, File name is created */
+#endif
+
+	return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get file information from directory entry                             */
+/*-----------------------------------------------------------------------*/
+#if _FS_MINIMIZE <= 1
+static
+void get_fileinfo (		/* No return code */
+	DIR *dj,			/* Pointer to the directory object */
+	FILINFO *fno	 	/* Pointer to store the file information */
+)
+{
+	int i;
+	BYTE c, nt, *dir;
+	char *p;
+
+
+	p = fno->fname;
+	if (dj->sect) {
+		dir = dj->dir;
+		nt = dir[DIR_NTres];		/* NT flag */
+		for (i = 0; i < 8; i++) {	/* Copy file name body */
+			c = dir[i];
+			if (c == ' ') break;
+			if (c == 0x05) c = 0xE5;
+			if ((nt & 0x08) && IsUpper(c)) c += 0x20;
+			*p++ = c;
+		}
+		if (dir[8] != ' ') {		/* Copy file name extension */
+			*p++ = '.';
+			for (i = 8; i < 11; i++) {
+				c = dir[i];
+				if (c == ' ') break;
+				if ((nt & 0x10) && IsUpper(c)) c += 0x20;
+				*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;
+
+#if _USE_LFN
+	p = fno->lfname;
+	if (p) {
+		WCHAR wchr, *lfn;
+
+		i = 0;
+		if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */
+			lfn = dj->lfn;
+			while ((wchr = *lfn++) != 0) {		/* Get an LFN char */
+				wchr = ff_convert(wchr, 0);		/* Unicode -> OEM code */
+				if (!wchr) { i = 0; break; }	/* Conversion error, no LFN */
+				if (_DF1S && wchr >= 0x100)		/* Put 1st byte if it is a DBC */
+					p[i++] = (char)(wchr >> 8);
+				p[i++] = (char)wchr;
+				if (i >= fno->lfsize) { i = 0; break; }	/* Buffer overrun, no LFN */
+			}
+		}
+		p[i] = 0;	/* Terminator */
+	}
+#endif
+}
+#endif /* _FS_MINIMIZE <= 1 */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* 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 char *path	/* Full-path string to find a file or directory */
+)
+{
+	FRESULT res;
+	BYTE *dir, last;
+
+
+	if (*path == '/' || *path == '\\' ) path++;	/* Strip heading separator */
+
+	dj->sclust =						/* Set start directory (root dir) */
+		(dj->fs->fs_type == FS_FAT32) ? dj->fs->dirbase : 0;
+
+	if ((BYTE)*path < ' ') {			/* Null path means the root directory */
+		res = dir_seek(dj, 0);
+		dj->dir = NULL;
+
+	} else {							/* Follow path */
+		for (;;) {
+			res = create_name(dj, &path);	/* Get a segment */
+			if (res != FR_OK) break;
+			res = dir_find(dj);				/* Find it */
+			last = *(dj->fn+11) & 4;
+			if (res != FR_OK) {				/* Could not find the object */
+				if (res == FR_NO_FILE && !last)
+					res = FR_NO_PATH;
+				break;
+			}
+			if (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 = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);
+		}
+	}
+
+	return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Load boot record and check if it is an FAT boot record                */
+/*-----------------------------------------------------------------------*/
+
+static
+BYTE check_fs (	/* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record, 3: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->drive, 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 (!mem_cmp(&fs->win[BS_FilSysType], "FAT", 3))		/* Check FAT signature */
+		return 0;
+	if (!mem_cmp(&fs->win[BS_FilSysType32], "FAT32", 5) && !(fs->win[BPB_ExtFlags] & 0x80))
+		return 0;
+
+	return 1;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Make sure that the file system is valid                               */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT auto_mount (	/* FR_OK(0): successful, !=0: any error occured */
+	const char **path,	/* Pointer to pointer to the path name (drive number) */
+	FATFS **rfs,		/* Pointer to pointer to the found file system object */
+	BYTE chk_wp			/* !=0: Check media write protection for write access */
+)
+{
+	FRESULT res;
+	BYTE vol, fmt, *tbl;
+	DSTATUS stat;
+	DWORD bsect, fsize, tsect, mclst;
+	const char *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] == ':') {
+		p += 2;					/* Found a drive number, get and strip it */
+		*path = p;				/* Return pointer to the path name */
+	} else {
+		vol = 0;				/* No drive number is given, use drive number 0 as default */
+	}
+	/* Check if the logical drive number is valid or not */
+	if (vol >= _DRIVES) return FR_INVALID_DRIVE;	/* Is the drive number valid? */
+	*rfs = fs = FatFs[vol];					/* Returen pointer to the corresponding file system object */
+	if (!fs) return FR_NOT_ENABLED;			/* Is the file system object registered? */
+
+	ENTER_FF(fs);				/* Lock file system */
+
+	if (fs->fs_type) {						/* If the logical drive has been mounted */
+		stat = disk_status(fs->drive);
+		if (!(stat & STA_NOINIT)) {			/* and physical drive is kept initialized (has not been changed), */
+#if !_FS_READONLY
+			if (chk_wp && (stat & STA_PROTECT))	/* Check write protection if needed */
+				return FR_WRITE_PROTECTED;
+#endif
+			return FR_OK;					/* The file system object is valid */
+		}
+	}
+
+	/* The logical drive must be re-mounted. Following code attempts to mount the volume */
+
+	fs->fs_type = 0;					/* Clear the file system object */
+	fs->drive = LD2PD(vol);				/* Bind the logical drive and a physical drive */
+	stat = disk_initialize(fs->drive);	/* Initialize low level disk I/O layer */
+	if (stat & STA_NOINIT)				/* Check if the drive is ready */
+		return FR_NOT_READY;
+#if _MAX_SS != 512						/* Get disk sector size if needed */
+	if (disk_ioctl(fs->drive, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > _MAX_SS)
+		return FR_NO_FILESYSTEM;
+#endif
+#if !_FS_READONLY
+	if (chk_wp && (stat & STA_PROTECT))	/* Check write protection if needed */
+		return FR_WRITE_PROTECTED;
+#endif
+	/* Search FAT partition on the drive */
+	fmt = check_fs(fs, bsect = 0);		/* Check sector 0 as an SFD format */
+	if (fmt == 1) {						/* Not an FAT boot record, it may be patitioned */
+		/* Check a partition listed in top of the partition table */
+		tbl = &fs->win[MBR_Table + LD2PT(vol) * 16];	/* 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 || LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs))	/* No valid FAT patition is found */
+		return FR_NO_FILESYSTEM;
+
+	/* Initialize the file system object */
+	fsize = LD_WORD(fs->win+BPB_FATSz16);				/* Number of sectors per FAT */
+	if (!fsize) fsize = LD_DWORD(fs->win+BPB_FATSz32);
+	fs->sects_fat = fsize;
+	fs->n_fats = fs->win[BPB_NumFATs];					/* Number of FAT copies */
+	fsize *= fs->n_fats;								/* (Number of sectors in FAT area) */
+	fs->fatbase = bsect + LD_WORD(fs->win+BPB_RsvdSecCnt); /* FAT start sector (lba) */
+	fs->csize = fs->win[BPB_SecPerClus];				/* Number of sectors per cluster */
+	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt);	/* Nmuber of root directory entries */
+	tsect = LD_WORD(fs->win+BPB_TotSec16);				/* Number of sectors on the file system */
+	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32);
+	fs->max_clust = mclst = (tsect						/* Last cluster# + 1 */
+		- LD_WORD(fs->win+BPB_RsvdSecCnt) - fsize - fs->n_rootdir / (SS(fs)/32)
+		) / fs->csize + 2;
+
+	fmt = FS_FAT12;										/* Determine the FAT sub type */
+	if (mclst >= 0xFF7) fmt = FS_FAT16;				/* Number of clusters >= 0xFF5 */
+	if (mclst >= 0xFFF7) fmt = FS_FAT32;			/* Number of clusters >= 0xFFF5 */
+
+	if (fmt == FS_FAT32)
+		fs->dirbase = LD_DWORD(fs->win+BPB_RootClus);	/* Root directory start cluster */
+	else
+		fs->dirbase = fs->fatbase + fsize;				/* Root directory start sector (lba) */
+	fs->database = fs->fatbase + fsize + fs->n_rootdir / (SS(fs)/32);	/* Data start sector (lba) */
+
+#if !_FS_READONLY
+	/* Initialize allocation information */
+	fs->free_clust = 0xFFFFFFFF;
+	fs->wflag = 0;
+	/* Get fsinfo if needed */
+	if (fmt == FS_FAT32) {
+		fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);
+		fs->fsi_flag = 0;
+		if (disk_read(fs->drive, 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->winsect = 0;
+	fs->fs_type = fmt;			/* FAT syb-type */
+	fs->id = ++Fsid;			/* File system mount ID */
+	res = FR_OK;
+
+	return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Check if the file/dir object is valid or not                          */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT validate (	/* FR_OK(0): The object is valid, !=0: Invalid */
+	FATFS *fs,		/* Pointer to the file system object */
+	WORD id			/* Member id of the target object to be checked */
+)
+{
+	if (!fs || !fs->fs_type || fs->id != id)
+		return FR_INVALID_OBJECT;
+
+	ENTER_FF(fs);		/* Lock file system */
+
+	if (disk_status(fs->drive) & STA_NOINIT)
+		return FR_NOT_READY;
+
+	return FR_OK;
+}
+
+
+
+
+/*--------------------------------------------------------------------------
+
+   Public Functions
+
+--------------------------------------------------------------------------*/
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Mount/Unmount a Locical 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 >= _DRIVES)				/* Check if the drive number is valid */
+		return FR_INVALID_DRIVE;
+	rfs = FatFs[vol];				/* Get current state */
+
+	if (rfs) {
+#if _FS_REENTRANT					/* Discard sync object of the current volume */
+		if (!ff_del_syncobj(fs->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 char *path,	/* Pointer to the file name */
+	BYTE mode			/* Access mode and file open mode flags */
+)
+{
+	FRESULT res;
+	DIR dj;
+	NAMEBUF(sfn, lfn);
+	BYTE *dir;
+
+
+	fp->fs = NULL;		/* Clear file object */
+#if !_FS_READONLY
+	mode &= (FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW);
+	res = auto_mount(&path, &dj.fs, (BYTE)(mode & (FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)));
+#else
+	mode &= FA_READ;
+	res = auto_mount(&path, &dj.fs, 0);
+#endif
+	if (res != FR_OK) LEAVE_FF(dj.fs, res);
+	INITBUF(dj, sfn, lfn);
+	res = follow_path(&dj, path);	/* Follow the file path */
+
+#if !_FS_READONLY
+	/* Create or Open a file */
+	if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {
+		DWORD ps, cl;
+
+		if (res != FR_OK) {		/* No file, create new */
+			if (res == FR_NO_FILE)
+				res = dir_register(&dj);
+			if (res != FR_OK) LEAVE_FF(dj.fs, res);
+			mode |= FA_CREATE_ALWAYS;
+			dir = dj.dir;
+		}
+		else {					/* Any object is already existing */
+			if (mode & FA_CREATE_NEW)			/* Cannot create new */
+				LEAVE_FF(dj.fs, FR_EXIST);
+			dir = dj.dir;
+			if (!dir || (dir[DIR_Attr] & (AM_RDO | AM_DIR)))	/* Cannot overwrite it (R/O or DIR) */
+				LEAVE_FF(dj.fs, FR_DENIED);
+			if (mode & FA_CREATE_ALWAYS) {		/* Resize it to zero if needed */
+				cl = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);	/* Get start cluster */
+				ST_WORD(dir+DIR_FstClusHI, 0);	/* cluster = 0 */
+				ST_WORD(dir+DIR_FstClusLO, 0);
+				ST_DWORD(dir+DIR_FileSize, 0);	/* size = 0 */
+				dj.fs->wflag = 1;
+				ps = dj.fs->winsect;			/* Remove the cluster chain */
+				if (cl) {
+					res = remove_chain(dj.fs, cl);
+					if (res) LEAVE_FF(dj.fs, res);
+					dj.fs->last_clust = cl - 1;	/* Reuse the cluster hole */
+				}
+				res = move_window(dj.fs, ps);
+				if (res != FR_OK) LEAVE_FF(dj.fs, res);
+			}
+		}
+		if (mode & FA_CREATE_ALWAYS) {
+			dir[DIR_Attr] = 0;					/* Reset attribute */
+			ps = get_fattime();
+			ST_DWORD(dir+DIR_CrtTime, ps);		/* Created time */
+			dj.fs->wflag = 1;
+			mode |= FA__WRITTEN;				/* Set file changed flag */
+		}
+	}
+	/* Open an existing file */
+	else {
+#endif /* !_FS_READONLY */
+		if (res != FR_OK) LEAVE_FF(dj.fs, res);	/* Follow failed */
+		dir = dj.dir;
+		if (!dir || (dir[DIR_Attr] & AM_DIR))	/* It is a directory */
+			LEAVE_FF(dj.fs, FR_NO_FILE);
+#if !_FS_READONLY
+		if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
+			LEAVE_FF(dj.fs, FR_DENIED);
+	}
+	fp->dir_sect = dj.fs->winsect;		/* Pointer to the directory entry */
+	fp->dir_ptr = dj.dir;
+#endif
+	fp->flag = mode;					/* File access mode */
+	fp->org_clust =						/* File start cluster */
+		((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);
+	fp->fsize = LD_DWORD(dir+DIR_FileSize);	/* File size */
+	fp->fptr = 0; fp->csect = 255;		/* File pointer */
+	fp->dsect = 0;
+	fp->fs = dj.fs; fp->id = dj.fs->id;	/* Owner file system object of the file */
+
+	LEAVE_FF(dj.fs, FR_OK);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* 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 *rbuff = buff;
+
+
+	*br = 0;
+
+	res = validate(fp->fs, fp->id);					/* 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 (!(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 transferred */
+		rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
+		if ((fp->fptr % SS(fp->fs)) == 0) {			/* On the sector boundary? */
+			if (fp->csect >= fp->fs->csize) {		/* On the cluster boundary? */
+				clst = (fp->fptr == 0) ?			/* On the top of the file? */
+					fp->org_clust : get_cluster(fp->fs, fp->curr_clust);
+				if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
+				if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
+				fp->curr_clust = clst;				/* Update current cluster */
+				fp->csect = 0;						/* Reset sector offset in the cluster */
+			}
+			sect = clust2sect(fp->fs, fp->curr_clust);	/* Get current sector */
+			if (!sect) ABORT(fp->fs, FR_INT_ERR);
+			sect += fp->csect;
+			cc = btr / SS(fp->fs);					/* When remaining bytes >= sector size, */
+			if (cc) {								/* Read maximum contiguous sectors directly */
+				if (fp->csect + cc > fp->fs->csize)	/* Clip at cluster boundary */
+					cc = fp->fs->csize - fp->csect;
+				if (disk_read(fp->fs->drive, rbuff, sect, (BYTE)cc) != RES_OK)
+					ABORT(fp->fs, FR_DISK_ERR);
+				fp->csect += (BYTE)cc;				/* Next sector address in the cluster */
+				rcnt = SS(fp->fs) * cc;				/* Number of bytes transferred */
+				continue;
+			}
+#if !_FS_TINY
+#if !_FS_READONLY
+			if (fp->flag & FA__DIRTY) {			/* Write sector I/O buffer if needed */
+				if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
+					ABORT(fp->fs, FR_DISK_ERR);
+				fp->flag &= (BYTE)~FA__DIRTY;
+			}
+#endif
+			if (fp->dsect != sect) {			/* Fill sector buffer with file data */
+				if (disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK)
+					ABORT(fp->fs, FR_DISK_ERR);
+			}
+#endif
+			fp->dsect = sect;
+			fp->csect++;							/* Next sector address in the cluster */
+		}
+		rcnt = SS(fp->fs) - (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 = buff;
+
+
+	*bw = 0;
+
+	res = validate(fp->fs, fp->id);					/* 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 (!(fp->flag & FA_WRITE))						/* Check access mode */
+		LEAVE_FF(fp->fs, FR_DENIED);
+	if (fp->fsize + btw < fp->fsize) btw = 0;		/* File size cannot reach 4GB */
+
+	for ( ;  btw;									/* Repeat until all data transferred */
+		wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
+		if ((fp->fptr % SS(fp->fs)) == 0) {			/* On the sector boundary? */
+			if (fp->csect >= fp->fs->csize) {		/* On the cluster boundary? */
+				if (fp->fptr == 0) {				/* On the top of the file? */
+					clst = fp->org_clust;			/* Follow from the origin */
+					if (clst == 0)					/* When there is no cluster chain, */
+						fp->org_clust = clst = create_chain(fp->fs, 0);	/* Create a new cluster chain */
+				} else {							/* Middle or end of the file */
+					clst = create_chain(fp->fs, fp->curr_clust);			/* Follow or streach cluster chain */
+				}
+				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->curr_clust = clst;				/* Update current cluster */
+				fp->csect = 0;						/* Reset sector address in the cluster */
+			}
+#if _FS_TINY
+			if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0))	/* Write back data buffer prior to following direct transfer */
+				ABORT(fp->fs, FR_DISK_ERR);
+#else
+			if (fp->flag & FA__DIRTY) {		/* Write back data buffer prior to following direct transfer */
+				if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
+					ABORT(fp->fs, FR_DISK_ERR);
+				fp->flag &= (BYTE)~FA__DIRTY;
+			}
+#endif
+			sect = clust2sect(fp->fs, fp->curr_clust);	/* Get current sector */
+			if (!sect) ABORT(fp->fs, FR_INT_ERR);
+			sect += fp->csect;
+			cc = btw / SS(fp->fs);					/* When remaining bytes >= sector size, */
+			if (cc) {								/* Write maximum contiguous sectors directly */
+				if (fp->csect + cc > fp->fs->csize)	/* Clip at cluster boundary */
+					cc = fp->fs->csize - fp->csect;
+				if (disk_write(fp->fs->drive, wbuff, sect, (BYTE)cc) != RES_OK)
+					ABORT(fp->fs, FR_DISK_ERR);
+				fp->csect += (BYTE)cc;				/* Next sector address in the cluster */
+				wcnt = SS(fp->fs) * cc;				/* Number of bytes transferred */
+				continue;
+			}
+#if _FS_TINY
+			if (fp->fptr >= fp->fsize) {			/* Avoid silly buffer filling at growing edge */
+				if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR);
+				fp->fs->winsect = sect;
+			}
+#else
+			if (fp->dsect != sect) {				/* Fill sector buffer with file data */
+				if (fp->fptr < fp->fsize &&
+					disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK)
+						ABORT(fp->fs, FR_DISK_ERR);
+			}
+#endif
+			fp->dsect = sect;
+			fp->csect++;							/* Next sector address in the cluster */
+		}
+		wcnt = SS(fp->fs) - (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 changed flag */
+
+	LEAVE_FF(fp->fs, FR_OK);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Synchronize the File Object                                           */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_sync (
+	FIL *fp		/* Pointer to the file object */
+)
+{
+	FRESULT res;
+	DWORD tim;
+	BYTE *dir;
+
+
+	res = validate(fp->fs, fp->id);		/* 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->drive, fp->buf, fp->dsect, 1) != RES_OK)
+					LEAVE_FF(fp->fs, FR_DISK_ERR);
+				fp->flag &= (BYTE)~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_WORD(dir+DIR_FstClusLO, fp->org_clust);	/* Update start cluster */
+				ST_WORD(dir+DIR_FstClusHI, fp->org_clust >> 16);
+				tim = get_fattime();					/* Updated time */
+				ST_DWORD(dir+DIR_WrtTime, tim);
+				fp->flag &= (BYTE)~FA__WRITTEN;
+				fp->fs->wflag = 1;
+				res = sync(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->fs, fp->id);
+	if (res == FR_OK) fp->fs = NULL;
+	LEAVE_FF(fp->fs, res);
+#else
+	res = f_sync(fp);
+	if (res == FR_OK) fp->fs = NULL;
+	return res;
+#endif
+}
+
+
+
+
+#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;
+	DWORD clst, bcs, nsect, ifptr;
+
+
+	res = validate(fp->fs, fp->id);		/* 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 (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 = 0; fp->csect = 255;
+	nsect = 0;
+	if (ofs > 0) {
+		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->curr_clust;
+		} else {									/* When seek to back cluster, */
+			clst = fp->org_clust;					/* 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->org_clust = clst;
+			}
+#endif
+			fp->curr_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 streached if in write mode */
+					if (clst == 0) {				/* When disk gets full, clip file size */
+						ofs = bcs; break;
+					}
+				} else
+#endif
+					clst = get_cluster(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->max_clust) ABORT(fp->fs, FR_INT_ERR);
+				fp->curr_clust = clst;
+				fp->fptr += bcs;
+				ofs -= bcs;
+			}
+			fp->fptr += ofs;
+			fp->csect = (BYTE)(ofs / SS(fp->fs));	/* Sector offset in the cluster */
+			if (ofs % SS(fp->fs)) {
+				nsect = clust2sect(fp->fs, clst);	/* Current sector */
+				if (!nsect) ABORT(fp->fs, FR_INT_ERR);
+				nsect += fp->csect;
+				fp->csect++;
+			}
+		}
+	}
+	if (nsect && nsect != fp->dsect && fp->fptr % SS(fp->fs)) {
+#if !_FS_TINY
+#if !_FS_READONLY
+		if (fp->flag & FA__DIRTY) {			/* Write-back dirty buffer if needed */
+			if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK)
+				ABORT(fp->fs, FR_DISK_ERR);
+			fp->flag &= (BYTE)~FA__DIRTY;
+		}
+#endif
+		if (disk_read(fp->fs->drive, fp->buf, nsect, 1) != RES_OK)
+			ABORT(fp->fs, FR_DISK_ERR);
+#endif
+		fp->dsect = nsect;
+	}
+#if !_FS_READONLY
+	if (fp->fptr > fp->fsize) {			/* Set changed 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 Directroy Object                                             */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_opendir (
+	DIR *dj,			/* Pointer to directory object to create */
+	const char *path	/* Pointer to the directory path */
+)
+{
+	FRESULT res;
+	NAMEBUF(sfn, lfn);
+	BYTE *dir;
+
+
+	res = auto_mount(&path, &dj->fs, 0);
+	if (res == FR_OK) {
+		INITBUF((*dj), sfn, lfn);
+		res = follow_path(dj, path);			/* Follow the path to the directory */
+		if (res == FR_OK) {						/* Follow completed */
+			dir = dj->dir;
+			if (dir) {							/* It is not the root dir */
+				if (dir[DIR_Attr] & AM_DIR) {	/* The object is a directory */
+					dj->sclust = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);
+				} else {						/* The object is not a directory */
+					res = FR_NO_PATH;
+				}
+			} else {							/* It is the root dir */
+				dj->sclust = (dj->fs->fs_type == FS_FAT32) ? dj->fs->dirbase : 0;
+			}
+			if (res == FR_OK) res = dir_seek(dj, 0);
+			dj->id = dj->fs->id;
+		} else {
+			if (res == FR_NO_FILE) res = FR_NO_PATH;
+		}
+	}
+
+	LEAVE_FF(dj->fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read Directory Entry in Sequense                                      */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_readdir (
+	DIR *dj,			/* Pointer to the open directory object */
+	FILINFO *fno		/* Pointer to file information to return */
+)
+{
+	FRESULT res;
+	NAMEBUF(sfn, lfn);
+
+
+	res = validate(dj->fs, dj->id);			/* Check validity of the object */
+	if (res == FR_OK) {
+		INITBUF((*dj), sfn, lfn);
+		if (!fno) {
+			res = dir_seek(dj, 0);
+		} else {
+			res = dir_read(dj);
+			if (res == FR_NO_FILE) {
+				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, FALSE);	/* Increment index for next */
+				if (res == FR_NO_FILE) {
+					dj->sect = 0;
+					res = FR_OK;
+				}
+			}
+		}
+	}
+
+	LEAVE_FF(dj->fs, res);
+}
+
+
+
+#if _FS_MINIMIZE == 0
+/*-----------------------------------------------------------------------*/
+/* Get File Status                                                       */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_stat (
+	const char *path,	/* Pointer to the file path */
+	FILINFO *fno		/* Pointer to file information to return */
+)
+{
+	FRESULT res;
+	DIR dj;
+	NAMEBUF(sfn, lfn);
+
+
+	res = auto_mount(&path, &dj.fs, 0);
+	if (res == FR_OK) {
+		INITBUF(dj, sfn, lfn);
+		res = follow_path(&dj, path);	/* Follow the file path */
+		if (res == FR_OK) {				/* Follwo completed */
+			if (dj.dir)	/* Found an object */
+				get_fileinfo(&dj, fno);
+			else		/* It is root dir */
+				res = FR_INVALID_NAME;
+		}
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+#if !_FS_READONLY
+/*-----------------------------------------------------------------------*/
+/* Truncate File                                                         */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_truncate (
+	FIL *fp		/* Pointer to the file object */
+)
+{
+	FRESULT res;
+	DWORD ncl;
+
+
+	res = validate(fp->fs, fp->id);		/* 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 (!(fp->flag & FA_WRITE))			/* Check access mode */
+		LEAVE_FF(fp->fs, FR_DENIED);
+
+	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->org_clust);
+			fp->org_clust = 0;
+		} else {				/* When truncate a part of the file, remove remaining clusters */
+			ncl = get_cluster(fp->fs, fp->curr_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->max_clust) {
+				res = put_cluster(fp->fs, fp->curr_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);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get Number of Free Clusters                                           */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_getfree (
+	const char *path,	/* Pointer to the logical drive number (root dir) */
+	DWORD *nclst,		/* Pointer to the variable to return number of free clusters */
+	FATFS **fatfs		/* Pointer to pointer to corresponding file system object to return */
+)
+{
+	FRESULT res;
+	DWORD n, clst, sect;
+	BYTE fat, f, *p;
+
+
+	/* Get drive number */
+	res = auto_mount(&path, fatfs, 0);
+	if (res != FR_OK) LEAVE_FF(*fatfs, res);
+
+	/* If number of free cluster is valid, return it without cluster scan. */
+	if ((*fatfs)->free_clust <= (*fatfs)->max_clust - 2) {
+		*nclst = (*fatfs)->free_clust;
+		LEAVE_FF(*fatfs, FR_OK);
+	}
+
+	/* Get number of free clusters */
+	fat = (*fatfs)->fs_type;
+	n = 0;
+	if (fat == FS_FAT12) {
+		clst = 2;
+		do {
+			if ((WORD)get_cluster(*fatfs, clst) == 0) n++;
+		} while (++clst < (*fatfs)->max_clust);
+	} else {
+		clst = (*fatfs)->max_clust;
+		sect = (*fatfs)->fatbase;
+		f = 0; p = 0;
+		do {
+			if (!f) {
+				res = move_window(*fatfs, sect++);
+				if (res != FR_OK)
+					LEAVE_FF(*fatfs, res);
+				p = (*fatfs)->win;
+			}
+			if (fat == FS_FAT16) {
+				if (LD_WORD(p) == 0) n++;
+				p += 2; f += 1;
+			} else {
+				if (LD_DWORD(p) == 0) n++;
+				p += 4; f += 2;
+			}
+		} while (--clst);
+	}
+	(*fatfs)->free_clust = n;
+	if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
+	*nclst = n;
+
+	LEAVE_FF(*fatfs, FR_OK);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Delete a File or Directory                                            */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_unlink (
+	const char *path		/* Pointer to the file or directory path */
+)
+{
+	FRESULT res;
+	DIR dj, sdj;
+	NAMEBUF(sfn, lfn);
+	BYTE *dir;
+	DWORD dclst;
+
+
+	res = auto_mount(&path, &dj.fs, 1);
+	if (res != FR_OK) LEAVE_FF(dj.fs, res);
+
+	INITBUF(dj, sfn, lfn);
+	res = follow_path(&dj, path);			/* Follow the file path */
+	if (res != FR_OK) LEAVE_FF(dj.fs, res); /* Follow failed */
+
+	dir = dj.dir;
+	if (!dir)								/* Is it the root directory? */
+		LEAVE_FF(dj.fs, FR_INVALID_NAME);
+	if (dir[DIR_Attr] & AM_RDO)				/* Is it a R/O object? */
+		LEAVE_FF(dj.fs, FR_DENIED);
+	dclst = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO);
+
+	if (dir[DIR_Attr] & AM_DIR) {			/* It is a sub-directory */
+		if (dclst < 2) LEAVE_FF(dj.fs, FR_INT_ERR);
+		mem_cpy(&sdj, &dj, sizeof(DIR));		/* Check if the sub-dir is empty or not */
+		sdj.sclust = dclst;
+		res = dir_seek(&sdj, 0);
+		if (res != FR_OK) LEAVE_FF(dj.fs, res);
+		res = dir_read(&sdj);
+		if (res == FR_OK) res = FR_DENIED;	/* Not empty sub-dir */
+		if (res != FR_NO_FILE) LEAVE_FF(dj.fs, res);
+	}
+
+	res = dir_remove(&dj);					/* Remove directory entry */
+	if (res == FR_OK) {
+		if (dclst)
+			res = remove_chain(dj.fs, dclst);	/* Remove the cluster chain */
+		if (res == FR_OK) res = sync(dj.fs);
+	}
+
+	LEAVE_FF(dj.fs, FR_OK);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Create a Directory                                                    */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_mkdir (
+	const char *path		/* Pointer to the directory path */
+)
+{
+	FRESULT res;
+	DIR dj;
+	NAMEBUF(sfn, lfn);
+	BYTE *dir, n;
+	DWORD dsect, dclst, pclst, tim;
+
+
+	res = auto_mount(&path, &dj.fs, 1);
+	if (res != FR_OK) LEAVE_FF(dj.fs, res);
+
+	INITBUF(dj, sfn, lfn);
+	res = follow_path(&dj, path);			/* Follow the file path */
+	if (res == FR_OK) res = FR_EXIST;		/* Any file or directory is already existing */
+	if (res != FR_NO_FILE)					/* Any error occured */
+		LEAVE_FF(dj.fs, res);
+
+	dclst = create_chain(dj.fs, 0);			/* Allocate a new cluster for new directory table */
+	res = FR_OK;
+	if (dclst == 0) res = FR_DENIED;
+	if (dclst == 1) res = FR_INT_ERR;
+	if (dclst == 0xFFFFFFFF) res = FR_DISK_ERR;
+	if (res == FR_OK)
+		res = move_window(dj.fs, 0);
+	if (res != FR_OK) LEAVE_FF(dj.fs, res);
+	dsect = clust2sect(dj.fs, dclst);
+
+	dir = dj.fs->win;						/* Initialize the new directory table */
+	mem_set(dir, 0, SS(dj.fs));
+	mem_set(dir+DIR_Name, ' ', 8+3);		/* Create "." entry */
+	dir[DIR_Name] = '.';
+	dir[DIR_Attr] = AM_DIR;
+	tim = get_fattime();
+	ST_DWORD(dir+DIR_WrtTime, tim);
+	ST_WORD(dir+DIR_FstClusLO, dclst);
+	ST_WORD(dir+DIR_FstClusHI, dclst >> 16);
+	mem_cpy(dir+32, dir, 32); 			/* Create ".." entry */
+	dir[33] = '.';
+	pclst = dj.sclust;
+	if (dj.fs->fs_type == FS_FAT32 && pclst == dj.fs->dirbase)
+		pclst = 0;
+	ST_WORD(dir+32+DIR_FstClusLO, pclst);
+	ST_WORD(dir+32+DIR_FstClusHI, pclst >> 16);
+	for (n = 0; n < dj.fs->csize; n++) {	/* Write dot entries and clear left sectors */
+		dj.fs->winsect = dsect++;
+		dj.fs->wflag = 1;
+		res = move_window(dj.fs, 0);
+		if (res) LEAVE_FF(dj.fs, res);
+		mem_set(dir, 0, SS(dj.fs));
+	}
+
+	res = dir_register(&dj);
+	if (res != FR_OK) {
+		remove_chain(dj.fs, dclst);
+	} else {
+		dir = dj.dir;
+		dir[DIR_Attr] = AM_DIR;					/* Attribute */
+		ST_DWORD(dir+DIR_WrtTime, tim);			/* Crated time */
+		ST_WORD(dir+DIR_FstClusLO, dclst);		/* Table start cluster */
+		ST_WORD(dir+DIR_FstClusHI, dclst >> 16);
+		dj.fs->wflag = 1;
+		res = sync(dj.fs);
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Change File Attribute                                                 */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_chmod (
+	const char *path,	/* Pointer to the file path */
+	BYTE value,			/* Attribute bits */
+	BYTE mask			/* Attribute mask to change */
+)
+{
+	FRESULT res;
+	DIR dj;
+	NAMEBUF(sfn, lfn);
+	BYTE *dir;
+
+
+	res = auto_mount(&path, &dj.fs, 1);
+	if (res == FR_OK) {
+		INITBUF(dj, sfn, lfn);
+		res = follow_path(&dj, path);		/* Follow the file path */
+		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(dj.fs);
+			}
+		}
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Change Timestamp                                                      */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_utime (
+	const char *path,	/* Pointer to the file/directory name */
+	const FILINFO *fno	/* Pointer to the timestamp to be set */
+)
+{
+	FRESULT res;
+	DIR dj;
+	NAMEBUF(sfn, lfn);
+	BYTE *dir;
+
+
+	res = auto_mount(&path, &dj.fs, 1);
+	if (res == FR_OK) {
+		INITBUF(dj, sfn, lfn);
+		res = follow_path(&dj, path);	/* Follow the file path */
+		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(dj.fs);
+			}
+		}
+	}
+
+	LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Rename File/Directory                                                 */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_rename (
+	const char *path_old,	/* Pointer to the old name */
+	const char *path_new	/* Pointer to the new name */
+)
+{
+	FRESULT res;
+	DIR dj_old, dj_new;
+	NAMEBUF(sfn, lfn);
+	BYTE buf[21], *dir;
+	DWORD dw;
+
+
+	INITBUF(dj_old, sfn, lfn);
+	res = auto_mount(&path_old, &dj_old.fs, 1);
+	if (res == FR_OK) {
+		dj_new.fs = dj_old.fs;
+		res = follow_path(&dj_old, path_old);	/* Check old object */
+	}
+	if (res != FR_OK) LEAVE_FF(dj_old.fs, res);	/* The old object is not found */
+
+	if (!dj_old.dir) LEAVE_FF(dj_old.fs, FR_NO_FILE);	/* Is root dir? */
+	mem_cpy(buf, dj_old.dir+DIR_Attr, 21);		/* Save the object information */
+
+	mem_cpy(&dj_new, &dj_old, sizeof(DIR));
+	res = follow_path(&dj_new, path_new);		/* Check new object */
+	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? */
+		res = dir_register(&dj_new);			/* Register the new object */
+		if (res == FR_OK) {
+			dir = dj_new.dir;					/* Copy object information into new entry */
+			mem_cpy(dir+13, buf+2, 19);
+			dir[DIR_Attr] = buf[0];
+			dj_old.fs->wflag = 1;
+			if (dir[DIR_Attr] & AM_DIR) {		/* Update .. entry in the directory if needed */
+				dw = clust2sect(dj_new.fs, (DWORD)LD_WORD(dir+DIR_FstClusHI) | LD_WORD(dir+DIR_FstClusLO));
+				if (!dw) {
+					res = FR_INT_ERR;
+				} else {
+					res = move_window(dj_new.fs, dw);
+					dir = dj_new.fs->win+32;
+					if (res == FR_OK && dir[1] == '.') {
+						dw = (dj_new.fs->fs_type == FS_FAT32 && dj_new.sclust == dj_new.fs->dirbase) ? 0 : dj_new.sclust;
+						ST_WORD(dir+DIR_FstClusLO, dw);
+						ST_WORD(dir+DIR_FstClusHI, dw >> 16);
+						dj_new.fs->wflag = 1;
+					}
+				}
+			}
+			if (res == FR_OK) {
+				res = dir_remove(&dj_old);			/* Remove old entry */
+				if (res == FR_OK)
+					res = sync(dj_old.fs);
+			}
+		}
+	}
+
+	LEAVE_FF(dj_old.fs, res);
+}
+
+#endif /* !_FS_READONLY */
+#endif /* _FS_MINIMIZE == 0 */
+#endif /* _FS_MINIMIZE <= 1 */
+#endif /* _FS_MINIMIZE <= 2 */
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Forward data to the stream directly (Available on only _FS_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 btr,						/* Number of bytes to forward */
+	UINT *bf						/* Pointer to number of bytes forwarded */
+)
+{
+	FRESULT res;
+	DWORD remain, clst, sect;
+	UINT rcnt;
+
+
+	*bf = 0;
+
+	res = validate(fp->fs, fp->id);					/* 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 (btr > remain) btr = (UINT)remain;			/* Truncate btr by remaining bytes */
+
+	for ( ;  btr && (*func)(NULL, 0);				/* Repeat until all data transferred or stream becomes busy */
+		fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) {
+		if ((fp->fptr % SS(fp->fs)) == 0) {			/* On the sector boundary? */
+			if (fp->csect >= fp->fs->csize) {		/* On the cluster boundary? */
+				clst = (fp->fptr == 0) ?			/* On the top of the file? */
+					fp->org_clust : get_cluster(fp->fs, fp->curr_clust);
+				if (clst <= 1) ABORT(fp->fs, FR_INT_ERR);
+				if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR);
+				fp->curr_clust = clst;				/* Update current cluster */
+				fp->csect = 0;						/* Reset sector address in the cluster */
+			}
+			fp->csect++;							/* Next sector address in the cluster */
+		}
+		sect = clust2sect(fp->fs, fp->curr_clust);	/* Get current data sector */
+		if (!sect) ABORT(fp->fs, FR_INT_ERR);
+		sect += fp->csect - 1;
+		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 > btr) rcnt = btr;
+		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			/* Multiple of 32 and <= 2048 */
+#define N_FATS		1			/* 1 or 2 */
+#define MAX_SECTOR	131072000UL	/* Maximum partition size */
+#define MIN_SECTOR	2000UL		/* Minimum partition size */
+
+
+FRESULT f_mkfs (
+	BYTE drv,			/* Logical drive number */
+	BYTE partition,		/* Partitioning rule 0:FDISK, 1:SFD */
+	WORD allocsize		/* Allocation unit size [bytes] */
+)
+{
+	static const DWORD sstbl[] = { 2048000, 1024000, 512000, 256000, 128000, 64000, 32000, 16000, 8000, 4000,   0 };
+	static const WORD cstbl[] =  {   32768,   16384,   8192,   4096,   2048, 16384,  8192,  4096, 2048, 1024, 512 };
+	BYTE fmt, m, *tbl;
+	DWORD b_part, b_fat, b_dir, b_data;		/* Area offset (LBA) */
+	DWORD n_part, n_rsv, n_fat, n_dir;		/* Area size */
+	DWORD n_clst, n;
+	WORD as;
+	FATFS *fs;
+	DSTATUS stat;
+
+
+	/* Check validity of the parameters */
+	if (drv >= _DRIVES) return FR_INVALID_DRIVE;
+	if (partition >= 2) return FR_MKFS_ABORTED;
+
+	/* Check mounted drive and clear work area */
+	fs = FatFs[drv];
+	if (!fs) return FR_NOT_ENABLED;
+	fs->fs_type = 0;
+	drv = LD2PD(drv);
+
+	/* Get disk statics */
+	stat = disk_initialize(drv);
+	if (stat & STA_NOINIT) return FR_NOT_READY;
+	if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
+	if (disk_ioctl(drv, GET_SECTOR_COUNT, &n_part) != RES_OK || n_part < MIN_SECTOR)
+		return FR_MKFS_ABORTED;
+	if (n_part > MAX_SECTOR) n_part = MAX_SECTOR;
+	b_part = (!partition) ? 63 : 0;		/* Boot sector */
+	n_part -= b_part;
+#if _MAX_SS == 512
+	if (!allocsize) {					/* Auto selection of cluster size */
+		for (n = 0; n_part < sstbl[n]; n++) ;
+		allocsize = cstbl[n];
+	}
+#endif
+	for (as = 512; as <= 32768U && as != allocsize; as <<= 1);
+	if (as != allocsize) return FR_MKFS_ABORTED;
+#if _MAX_SS != 512						/* Check disk sector size */
+	if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
+		|| SS(fs) > _MAX_SS
+		|| SS(fs) > allocsize)
+		return FR_MKFS_ABORTED;
+#endif
+	allocsize /= SS(fs);		/* Number of sectors per cluster */
+
+	/* Pre-compute number of clusters and FAT type */
+	n_clst = n_part / allocsize;
+	fmt = FS_FAT12;
+	if (n_clst >= 0xFF5) fmt = FS_FAT16;
+	if (n_clst >= 0xFFF5) fmt = FS_FAT32;
+
+	/* Determine offset and size of FAT structure */
+	switch (fmt) {
+	case FS_FAT12:
+		n_fat = ((n_clst * 3 + 1) / 2 + 3 + SS(fs) - 1) / SS(fs);
+		n_rsv = 1 + partition;
+		n_dir = N_ROOTDIR * 32 / SS(fs);
+		break;
+	case FS_FAT16:
+		n_fat = ((n_clst * 2) + 4 + SS(fs) - 1) / SS(fs);
+		n_rsv = 1 + partition;
+		n_dir = N_ROOTDIR * 32 / SS(fs);
+		break;
+	default:
+		n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
+		n_rsv = 33 - partition;
+		n_dir = 0;
+	}
+	b_fat = b_part + n_rsv;			/* FATs start sector */
+	b_dir = b_fat + n_fat * N_FATS;	/* Directory start sector */
+	b_data = b_dir + n_dir;			/* Data start sector */
+
+	/* Align data start sector to erase block boundary (for flash memory media) */
+	if (disk_ioctl(drv, GET_BLOCK_SIZE, &n) != RES_OK) return FR_MKFS_ABORTED;
+	n = (b_data + n - 1) & ~(n - 1);
+	n_fat += (n - b_data) / N_FATS;
+	/* b_dir and b_data are no longer used below */
+
+	/* Determine number of cluster and final check of validity of the FAT type */
+	n_clst = (n_part - n_rsv - n_fat * N_FATS - n_dir) / allocsize;
+	if (   (fmt == FS_FAT16 && n_clst < 0xFF5)
+		|| (fmt == FS_FAT32 && n_clst < 0xFFF5))
+		return FR_MKFS_ABORTED;
+
+	/* Create partition table if needed */
+	if (!partition) {
+		DWORD n_disk = b_part + n_part;
+
+		tbl = fs->win+MBR_Table;
+		ST_DWORD(tbl, 0x00010180);		/* Partition start in CHS */
+		if (n_disk < 63UL * 255 * 1024) {	/* Partition end in CHS */
+			n_disk = n_disk / 63 / 255;
+			tbl[7] = (BYTE)n_disk;
+			tbl[6] = (BYTE)((n_disk >> 2) | 63);
+		} else {
+			ST_WORD(&tbl[6], 0xFFFF);
+		}
+		tbl[5] = 254;
+		if (fmt != FS_FAT32)			/* System ID */
+			tbl[4] = (n_part < 0x10000) ? 0x04 : 0x06;
+		else
+			tbl[4] = 0x0c;
+		ST_DWORD(tbl+8, 63);			/* Partition start in LBA */
+		ST_DWORD(tbl+12, n_part);		/* Partition size in LBA */
+		ST_WORD(tbl+64, 0xAA55);		/* Signature */
+		if (disk_write(drv, fs->win, 0, 1) != RES_OK)
+			return FR_DISK_ERR;
+	}
+
+	/* Create boot record */
+	tbl = fs->win;								/* Clear buffer */
+	mem_set(tbl, 0, SS(fs));
+	ST_DWORD(tbl+BS_jmpBoot, 0x90FEEB);			/* Boot code (jmp $, nop) */
+	ST_WORD(tbl+BPB_BytsPerSec, SS(fs));		/* Sector size */
+	tbl[BPB_SecPerClus] = (BYTE)allocsize;		/* Sectors per cluster */
+	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv);			/* Reserved sectors */
+	tbl[BPB_NumFATs] = N_FATS;					/* Number of FATs */
+	ST_WORD(tbl+BPB_RootEntCnt, SS(fs) / 32 * n_dir); /* Number of rootdir entries */
+	if (n_part < 0x10000) {						/* Number of total sectors */
+		ST_WORD(tbl+BPB_TotSec16, n_part);
+	} else {
+		ST_DWORD(tbl+BPB_TotSec32, n_part);
+	}
+	tbl[BPB_Media] = 0xF8;						/* Media descripter */
+	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_part);			/* Hidden sectors */
+	n = get_fattime();							/* Use current time as a VSN */
+	if (fmt != FS_FAT32) {
+		ST_DWORD(tbl+BS_VolID, n);				/* Volume serial number */
+		ST_WORD(tbl+BPB_FATSz16, n_fat);		/* Number of secters 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 lavel, FAT signature */
+	} else {
+		ST_DWORD(tbl+BS_VolID32, n);			/* Volume serial number */
+		ST_DWORD(tbl+BPB_FATSz32, n_fat);		/* Number of secters per FAT */
+		ST_DWORD(tbl+BPB_RootClus, 2);			/* Root directory cluster (2) */
+		ST_WORD(tbl+BPB_FSInfo, 1);				/* FSInfo record offset (bs+1) */
+		ST_WORD(tbl+BPB_BkBootSec, 6);			/* Backup boot record offset (bs+6) */
+		tbl[BS_DrvNum32] = 0x80;				/* Drive number */
+		tbl[BS_BootSig32] = 0x29;				/* Extended boot signature */
+		mem_cpy(tbl+BS_VolLab32, "NO NAME    FAT32   ", 19);	/* Volume lavel, FAT signature */
+	}
+	ST_WORD(tbl+BS_55AA, 0xAA55);				/* Signature */
+	if (disk_write(drv, tbl, b_part+0, 1) != RES_OK)
+		return FR_DISK_ERR;
+	if (fmt == FS_FAT32)
+		disk_write(drv, tbl, b_part+6, 1);
+
+	/* Initialize FAT area */
+	for (m = 0; m < N_FATS; m++) {
+		mem_set(tbl, 0, SS(fs));		/* 1st sector of the FAT  */
+		if (fmt != FS_FAT32) {
+			n = (fmt == FS_FAT12) ? 0x00FFFFF8 : 0xFFFFFFF8;
+			ST_DWORD(tbl, n);				/* Reserve cluster #0-1 (FAT12/16) */
+		} else {
+			ST_DWORD(tbl+0, 0xFFFFFFF8);	/* Reserve cluster #0-1 (FAT32) */
+			ST_DWORD(tbl+4, 0xFFFFFFFF);
+			ST_DWORD(tbl+8, 0x0FFFFFFF);	/* Reserve cluster #2 for root dir */
+		}
+		if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
+			return FR_DISK_ERR;
+		mem_set(tbl, 0, SS(fs));		/* Following FAT entries are filled by zero */
+		for (n = 1; n < n_fat; n++) {
+			if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
+				return FR_DISK_ERR;
+		}
+	}
+
+	/* Initialize Root directory */
+	m = (BYTE)((fmt == FS_FAT32) ? allocsize : n_dir);
+	do {
+		if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
+			return FR_DISK_ERR;
+	} while (--m);
+
+	/* Create FSInfo record if needed */
+	if (fmt == FS_FAT32) {
+		ST_WORD(tbl+BS_55AA, 0xAA55);
+		ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
+		ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
+		ST_DWORD(tbl+FSI_Free_Count, n_clst - 1);
+		ST_DWORD(tbl+FSI_Nxt_Free, 0xFFFFFFFF);
+		disk_write(drv, tbl, b_part+1, 1);
+		disk_write(drv, tbl, b_part+7, 1);
+	}
+
+	return (disk_ioctl(drv, CTRL_SYNC, (void*)NULL) == RES_OK) ? FR_OK : FR_DISK_ERR;
+}
+
+#endif /* _USE_MKFS && !_FS_READONLY */
+
+
+
+
+#if _USE_STRFUNC
+/*-----------------------------------------------------------------------*/
+/* Get a string from the file                                            */
+/*-----------------------------------------------------------------------*/
+char* f_gets (
+	char* buff,	/* Pointer to the string buffer to read */
+	int len,	/* Size of string buffer */
+	FIL* fil	/* Pointer to the file object */
+)
+{
+	int i = 0;
+	char *p = buff;
+	UINT rc;
+
+
+	while (i < len - 1) {			/* Read bytes until buffer gets filled */
+		f_read(fil, p, 1, &rc);
+		if (rc != 1) break;			/* Break when no data to read */
+#if _USE_STRFUNC >= 2
+		if (*p == '\r') continue;	/* Strip '\r' */
+#endif
+		i++;
+		if (*p++ == '\n') break;	/* Break when reached end of line */
+	}
+	*p = 0;
+	return i ? buff : NULL;			/* 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 (
+	int chr,	/* A character to be output */
+	FIL* fil	/* Ponter to the file object */
+)
+{
+	UINT bw;
+	char c;
+
+
+#if _USE_STRFUNC >= 2
+	if (chr == '\n') f_putc ('\r', fil);	/* LF -> CRLF conversion */
+#endif
+	if (!fil) {	/* Special value may be used to switch the destination to any other device */
+	/*	put_console(chr);	*/
+		return chr;
+	}
+	c = (char)chr;
+	f_write(fil, &c, 1, &bw);	/* Write a byte to the file */
+	return bw ? chr : EOF;		/* Return the result */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Put a string to the file                                              */
+/*-----------------------------------------------------------------------*/
+int f_puts (
+	const char* str,	/* Pointer to the string to be output */
+	FIL* fil			/* Pointer to the file object */
+)
+{
+	int n;
+
+
+	for (n = 0; *str; str++, n++) {
+		if (f_putc(*str, fil) == EOF) return EOF;
+	}
+	return n;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Put a formatted string to the file                                    */
+/*-----------------------------------------------------------------------*/
+int f_printf (
+	FIL* fil,			/* Pointer to the file object */
+	const char* str,	/* Pointer to the format string */
+	...					/* Optional arguments... */
+)
+{
+	va_list arp;
+	UCHAR c, f, r;
+	ULONG val;
+	char s[16];
+	int i, w, res, 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 cahracter */
+			cc = f_putc(c, fil);
+			if (cc != EOF) cc = 1;
+			continue;
+		}
+		w = f = 0;
+		c = *str++;
+		if (c == '0') {				/* Flag: '0' padding */
+			f = 1; c = *str++;
+		}
+		while (c >= '0' && c <= '9') {	/* Precision */
+			w = w * 10 + (c - '0');
+			c = *str++;
+		}
+		if (c == 'l') {				/* Prefix: Size is long int */
+			f |= 2; c = *str++;
+		}
+		if (c == 's') {				/* Type is string */
+			cc = f_puts(va_arg(arp, char*), fil);
+			continue;
+		}
+		if (c == 'c') {				/* Type is character */
+			cc = f_putc(va_arg(arp, int), fil);
+			if (cc != EOF) cc = 1;
+			continue;
+		}
+		r = 0;
+		if (c == 'd') r = 10;		/* Type is signed decimal */
+		if (c == 'u') r = 10;		/* Type is unsigned decimal */
+		if (c == 'X') r = 16;		/* Type is unsigned hexdecimal */
+		if (r == 0) break;			/* Unknown type */
+		if (f & 2) {				/* Get the value */
+			val = (ULONG)va_arg(arp, long);
+		} else {
+			val = (c == 'd') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int);
+		}
+		/* Put numeral string */
+		if (c == 'd') {
+			if (val & 0x80000000) {
+				val = 0 - val;
+				f |= 4;
+			}
+		}
+		i = sizeof(s) - 1; s[i] = 0;
+		do {
+			c = (UCHAR)(val % r + '0');
+			if (c > '9') c += 7;
+			s[--i] = c;
+			val /= r;
+		} while (i && val);
+		if (i && (f & 4)) s[--i] = '-';
+		w = sizeof(s) - 1 - w;
+		while (i && i > w) s[--i] = (f & 1) ? '0' : ' ';
+		cc = f_puts(&s[i], fil);
+	}
+
+	va_end(arp);
+	return (cc == EOF) ? cc : res;
+}
+
+#endif /* !_FS_READONLY */
+#endif /* _USE_STRFUNC */

+ 584 - 547
snes/fatfstest/ff.h

@@ -1,547 +1,584 @@
-/*---------------------------------------------------------------------------/
-/  FatFs - FAT file system module include file  R0.07a       (C)ChaN, 2009
-/----------------------------------------------------------------------------/
-/ 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) 2009, 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 use UNDER YOUR RESPONSIBILITY.
-/ * Redistributions of source code must retain the above copyright notice.
-/----------------------------------------------------------------------------*/
-
-#include "integer.h"
-
-/*---------------------------------------------------------------------------/
-/ FatFs Configuration Options
-/
-/ CAUTION! Do not forget to make clean the project after any changes to
-/ the configuration options.
-/
-/----------------------------------------------------------------------------*/
-#ifndef _FATFS
-#define _FATFS
-
-#define _WORD_ACCESS	0
-/* The _WORD_ACCESS option defines which access method is used to the word
-/  data in the FAT structure.
-/
-/   0: Byte-by-byte access. Always compatible with all platforms.
-/   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 efficiency. */
-
-
-#define _FS_READONLY	0
-/* 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
-/* 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 level 1.
-/   3: f_lseek is removed in addition to level 2. */
-
-
-#define	_FS_TINY	0
-/* 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	_USE_STRFUNC	0
-/* To enable string functions, set _USE_STRFUNC to 1 or 2. */
-
-
-#define	_USE_MKFS	0
-/* To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */
-
-
-#define	_USE_FORWARD	0
-/* To enable f_forward function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */
-
-
-#define _DRIVES		1
-/* Number of volumes (logical drives) to be used. */
-
-
-#define	_MAX_SS	512
-/* Maximum sector size to be handled. (512/1024/2048/4096) */
-/* 512 for memroy card and hard disk, 1024 for floppy disk, 2048 for MO disk */
-
-
-#define	_MULTI_PARTITION	0
-/* When _MULTI_PARTITION is set to 0, each volume is bound to the same physical
-/ drive number and can mount only first primaly partition. When it is set to 1,
-/ each volume is tied to the partitions listed in Drives[]. */
-
-
-#define _CODE_PAGE	437
-/* The _CODE_PAGE specifies the OEM code page to be used on the target system.
-/  When it is non LFN configuration, there is no difference between SBCS code
-/  pages. When LFN is enabled, the code page must always be set correctly.
-/   437 - U.S.
-/   720 - Arabic
-/   737 - Greek
-/   775 - Baltic
-/   850 - Multilingual Latin 1
-/   852 - Latin 2
-/   855 - Cyrillic
-/   857 - Turkish
-/   858 - Multilingual Latin 1 + Euro
-/   862 - Hebrew
-/   866 - Russian
-/   874 - Thai
-/   932 - Japanese Shift-JIS       (DBCS)
-/   936 - Simplified Chinese GBK   (DBCS)
-/   949 - Korean                   (DBCS)
-/   950 - Traditional Chinese Big5 (DBCS)
-/   1258 - Vietnam
-*/
-
-
-#define	_USE_LFN	0
-#define	_MAX_LFN	255		/* Maximum LFN length to handle (max:255) */
-/* The _USE_LFN option switches the LFN support.
-/
-/   0: Disable LFN.
-/   1: Enable LFN with static working buffer on the bss. NOT REENTRANT.
-/   2: Enable LFN with dynamic working buffer on the caller's STACK.
-/
-/  The working buffer occupies (_MAX_LFN + 1) * 2 bytes. When enable LFN,
-/  a Unicode - OEM code conversion function ff_convert() must be added to
-/  the project. */
-
-
-#define _FS_REENTRANT	0
-#define _TIMEOUT		1000	/* Timeout period in unit of time ticks */
-#define	_SYNC_t			HANDLE	/* Type of sync object used on the OS. */
-								/* e.g. HANDLE, OS_EVENT*, ID and etc.. */
-/* To make the FatFs module re-entrant, set _FS_REENTRANT to 1 and add user
-/  provided synchronization handlers, ff_req_grant, ff_rel_grant,
-/  ff_del_syncobj and ff_cre_syncobj function to the project. */
-
-
-
-/* End of configuration options. Do not change followings without care.     */
-/*--------------------------------------------------------------------------*/
-
-
-
-/* Definitions corresponds to multiple sector size */
-
-#if _MAX_SS == 512
-#define	SS(fs)	512
-#else
-#if _MAX_SS == 1024 || _MAX_SS == 2048 || _MAX_SS == 4096
-#define	SS(fs)	((fs)->s_size)
-#else
-#error Sector size must be 512, 1024, 2048 or 4096.
-#endif
-#endif
-
-
-
-/* File system object structure */
-
-typedef struct _FATFS {
-	BYTE	fs_type;	/* FAT sub type */
-	BYTE	drive;		/* Physical drive number */
-	BYTE	csize;		/* Number of sectors per cluster */
-	BYTE	n_fats;		/* Number of FAT copies */
-	BYTE	wflag;		/* win[] dirty flag (1:must be written back) */
-	BYTE	pad1;
-	WORD	id;			/* File system mount ID */
-	WORD	n_rootdir;	/* Number of root directory entries (0 on FAT32) */
-#if _FS_REENTRANT
-	_SYNC_t	sobj;		/* Identifier of sync object */
-#endif
-#if _MAX_SS != 512U
-	WORD	s_size;		/* Sector size */
-#endif
-#if !_FS_READONLY
-	BYTE	fsi_flag;	/* fsinfo dirty flag (1:must be written back) */
-	BYTE	pad2;
-	DWORD	last_clust;	/* Last allocated cluster */
-	DWORD	free_clust;	/* Number of free clusters */
-	DWORD	fsi_sector;	/* fsinfo sector */
-#endif
-	DWORD	sects_fat;	/* Sectors per fat */
-	DWORD	max_clust;	/* Maximum cluster# + 1. Number of clusters is max_clust - 2 */
-	DWORD	fatbase;	/* FAT start sector */
-	DWORD	dirbase;	/* Root directory start sector (Cluster# on FAT32) */
-	DWORD	database;	/* Data start sector */
-	DWORD	winsect;	/* Current sector appearing in the win[] */
-	BYTE	win[_MAX_SS];/* Disk access window for Directory/FAT */
-} FATFS;
-
-
-
-/* Directory object structure */
-
-typedef struct _DIR {
-	WORD	id;			/* Owner file system mount ID */
-	WORD	index;		/* Current index number */
-	FATFS*	fs;			/* Pointer to the owner file system object */
-	DWORD	sclust;		/* Table start cluster (0:Static table) */
-	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 (0xFFFF:No LFN) */
-#endif
-} DIR;
-
-
-
-/* File object structure */
-
-typedef struct _FIL {
-	FATFS*	fs;			/* Pointer to the owner file system object */
-	WORD	id;			/* Owner file system mount ID */
-	BYTE	flag;		/* File status flags */
-	BYTE	csect;		/* Sector address in the cluster */
-	DWORD	fptr;		/* File R/W pointer */
-	DWORD	fsize;		/* File size */
-	DWORD	org_clust;	/* File start cluster */
-	DWORD	curr_clust;	/* Current cluster */
-	DWORD	dsect;		/* Current data sector */
-#if !_FS_READONLY
-	DWORD	dir_sect;	/* Sector containing the directory entry */
-	BYTE*	dir_ptr;	/* Ponter to the directory entry in the window */
-#endif
-#if !_FS_TINY
-	BYTE	buf[_MAX_SS];/* File R/W buffer */
-#endif
-} FIL;
-
-
-
-/* File status structure */
-
-typedef struct _FILINFO {
-	DWORD fsize;		/* File size */
-	WORD fdate;			/* Last modified date */
-	WORD ftime;			/* Last modified time */
-	BYTE fattrib;		/* Attribute */
-	char fname[13];		/* Short file name (8.3 format) */
-#if _USE_LFN
-	char *lfname;		/* Pointer to the LFN buffer */
-	int lfsize;			/* Size of LFN buffer [bytes] */
-#endif
-} FILINFO;
-
-
-
-/* DBCS code ranges */
-
-#if _CODE_PAGE == 932	/* CP932 (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	/* CP936 (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	/* CP949 (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	/* CP950 (Traditional Chinese Big5) */
-#define _DF1S	0x81
-#define _DF1E	0xFE
-#define _DS1S	0x40
-#define _DS1E	0x7E
-#define _DS2S	0xA1
-#define _DS2E	0xFE
-
-#else					/* SBCS code pages */
-#define _DF1S	0
-
-#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	/* DBCS configuration */
-
-#if _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
-
-#if _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		/* SBCS configuration */
-
-#define IsDBCS1(c)	0
-#define IsDBCS2(c)	0
-
-#endif /* _DF1S */
-
-
-
-/* Definitions corresponds to multi partition */
-
-#if _MULTI_PARTITION		/* Multiple partition configuration */
-
-typedef struct _PARTITION {
-	BYTE pd;	/* Physical drive# */
-	BYTE pt;	/* Partition # (0-3) */
-} PARTITION;
-
-extern
-const PARTITION Drives[];			/* Logical drive# to physical location conversion table */
-#define LD2PD(drv) (Drives[drv].pd)	/* Get physical drive# */
-#define LD2PT(drv) (Drives[drv].pt)	/* Get partition# */
-
-#else						/* Single partition configuration */
-
-#define LD2PD(drv) (drv)	/* Physical drive# is equal to the logical drive# */
-#define LD2PT(drv) 0		/* Always mounts the 1st partition */
-
-#endif
-
-
-
-/* File function return code (FRESULT) */
-
-typedef enum {
-	FR_OK = 0,			/* 0 */
-	FR_DISK_ERR,		/* 1 */
-	FR_INT_ERR,			/* 2 */
-	FR_NOT_READY,		/* 3 */
-	FR_NO_FILE,			/* 4 */
-	FR_NO_PATH,			/* 5 */
-	FR_INVALID_NAME,	/* 6 */
-	FR_DENIED,			/* 7 */
-	FR_EXIST,			/* 8 */
-	FR_INVALID_OBJECT,	/* 9 */
-	FR_WRITE_PROTECTED,	/* 10 */
-	FR_INVALID_DRIVE,	/* 11 */
-	FR_NOT_ENABLED,		/* 12 */
-	FR_NO_FILESYSTEM,	/* 13 */
-	FR_MKFS_ABORTED,	/* 14 */
-	FR_TIMEOUT			/* 15 */
-} FRESULT;
-
-
-
-/*--------------------------------------------------------------*/
-/* FatFs module application interface                           */
-
-FRESULT f_mount (BYTE, FATFS*);						/* Mount/Unmount a logical drive */
-FRESULT f_open (FIL*, const char*, BYTE);			/* Open or create a file */
-FRESULT f_read (FIL*, void*, UINT, UINT*);			/* Read data from a file */
-FRESULT f_write (FIL*, const void*, UINT, UINT*);	/* Write data to a file */
-FRESULT f_lseek (FIL*, DWORD);						/* Move file pointer of a file object */
-FRESULT f_close (FIL*);								/* Close an open file object */
-FRESULT f_opendir (DIR*, const char*);				/* Open an existing directory */
-FRESULT f_readdir (DIR*, FILINFO*);					/* Read a directory item */
-FRESULT f_stat (const char*, FILINFO*);				/* Get file status */
-FRESULT f_getfree (const char*, DWORD*, FATFS**);	/* Get number of free clusters on the drive */
-FRESULT f_truncate (FIL*);							/* Truncate file */
-FRESULT f_sync (FIL*);								/* Flush cached data of a writing file */
-FRESULT f_unlink (const char*);						/* Delete an existing file or directory */
-FRESULT	f_mkdir (const char*);						/* Create a new directory */
-FRESULT f_chmod (const char*, BYTE, BYTE);			/* Change attriburte of the file/dir */
-FRESULT f_utime (const char*, const FILINFO*);		/* Change timestamp of the file/dir */
-FRESULT f_rename (const char*, const char*);		/* Rename/Move a file or directory */
-FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*);	/* Forward data to the stream */
-FRESULT f_mkfs (BYTE, BYTE, WORD);					/* Create a file system on the drive */
-
-#if _USE_STRFUNC
-int f_putc (int, FIL*);								/* Put a character to the file */
-int f_puts (const char*, FIL*);						/* Put a string to the file */
-int f_printf (FIL*, const char*, ...);				/* Put a formatted string to the file */
-char* f_gets (char*, int, FIL*);					/* 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)
-#ifndef EOF
-#define EOF -1
-#endif
-#endif
-
-
-
-/*--------------------------------------------------------------*/
-/* User defined functions                                       */
-
-/* Real time clock */
-#if !_FS_READONLY
-DWORD get_fattime (void);	/* 31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */
-							/* 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */
-#endif
-
-/* Unicode - OEM code conversion */
-#if _USE_LFN
-WCHAR ff_convert (WCHAR, UINT);
-#endif
-
-/* Sync functions */
-#if _FS_REENTRANT
-BOOL ff_cre_syncobj(BYTE, _SYNC_t*);
-BOOL ff_del_syncobj(_SYNC_t);
-BOOL ff_req_grant(_SYNC_t);
-void ff_rel_grant(_SYNC_t);
-#endif
-
-
-
-/*--------------------------------------------------------------*/
-/* Flags and offset address                                     */
-
-
-/* File access control and file status flags (FIL.flag) */
-
-#define	FA_READ				0x01
-#define	FA_OPEN_EXISTING	0x00
-#if _FS_READONLY == 0
-#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
-#define FA__ERROR			0x80
-
-
-/* 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 */
-
-
-/* FatFs refers the members in the FAT structures with byte offset instead
-/ of structure member because there are incompatibility of the packing option
-/ between various compilers. */
-
-#define BS_jmpBoot			0
-#define BS_OEMName			3
-#define BPB_BytsPerSec		11
-#define BPB_SecPerClus		13
-#define BPB_RsvdSecCnt		14
-#define BPB_NumFATs			16
-#define BPB_RootEntCnt		17
-#define BPB_TotSec16		19
-#define BPB_Media			21
-#define BPB_FATSz16			22
-#define BPB_SecPerTrk		24
-#define BPB_NumHeads		26
-#define BPB_HiddSec			28
-#define BPB_TotSec32		32
-#define BS_55AA				510
-
-#define BS_DrvNum			36
-#define BS_BootSig			38
-#define BS_VolID			39
-#define BS_VolLab			43
-#define BS_FilSysType		54
-
-#define BPB_FATSz32			36
-#define BPB_ExtFlags		40
-#define BPB_FSVer			42
-#define BPB_RootClus		44
-#define BPB_FSInfo			48
-#define BPB_BkBootSec		50
-#define BS_DrvNum32			64
-#define BS_BootSig32		66
-#define BS_VolID32			67
-#define BS_VolLab32			71
-#define BS_FilSysType32		82
-
-#define	FSI_LeadSig			0
-#define	FSI_StrucSig		484
-#define	FSI_Free_Count		488
-#define	FSI_Nxt_Free		492
-
-#define MBR_Table			446
-
-#define	DIR_Name			0
-#define	DIR_Attr			11
-#define	DIR_NTres			12
-#define	DIR_CrtTime			14
-#define	DIR_CrtDate			16
-#define	DIR_FstClusHI		20
-#define	DIR_WrtTime			22
-#define	DIR_WrtDate			24
-#define	DIR_FstClusLO		26
-#define	DIR_FileSize		28
-#define	LDIR_Ord			0
-#define	LDIR_Attr			11
-#define	LDIR_Type			12
-#define	LDIR_Chksum			13
-#define	LDIR_FstClusLO		26
-
-
-
-/*--------------------------------*/
-/* 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
-
-
-#endif /* _FATFS */
+/*---------------------------------------------------------------------------/
+/  FatFs - FAT file system module include file  R0.07a       (C)ChaN, 2009
+/----------------------------------------------------------------------------/
+/ 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) 2009, 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 use UNDER YOUR RESPONSIBILITY.
+/ * Redistributions of source code must retain the above copyright notice.
+/----------------------------------------------------------------------------*/
+
+#include "integer.h"
+
+/*---------------------------------------------------------------------------/
+/ FatFs Configuration Options
+/
+/ CAUTION! Do not forget to make clean the project after any changes to
+/ the configuration options.
+/
+/----------------------------------------------------------------------------*/
+#ifndef _FATFS
+#define _FATFS
+
+#define _WORD_ACCESS	0
+/*
+ * The _WORD_ACCESS option defines which access method is used to the word / data in the FAT structure. / / 0: Byte-by-byte access. Always
+ * compatible with all platforms. / 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 efficiency. 
+ */
+
+
+#define _FS_READONLY	0
+/*
+ * 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
+/*
+ * 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 level 1. / 3: f_lseek
+ * is removed in addition to level 2. 
+ */
+
+
+#define	_FS_TINY	0
+/*
+ * 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	_USE_STRFUNC	0
+/*
+ * To enable string functions, set _USE_STRFUNC to 1 or 2. 
+ */
+
+
+#define	_USE_MKFS	0
+/*
+ * To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 
+ */
+
+
+#define	_USE_FORWARD	0
+/*
+ * To enable f_forward function, set _USE_FORWARD to 1 and set _FS_TINY to 1. 
+ */
+
+
+#define _DRIVES		1
+/*
+ * Number of volumes (logical drives) to be used. 
+ */
+
+
+#define	_MAX_SS	512
+/*
+ * Maximum sector size to be handled. (512/1024/2048/4096) 
+ */
+/*
+ * 512 for memroy card and hard disk, 1024 for floppy disk, 2048 for MO disk 
+ */
+
+
+#define	_MULTI_PARTITION	0
+/*
+ * When _MULTI_PARTITION is set to 0, each volume is bound to the same physical / drive number and can mount only first primaly partition.
+ * When it is set to 1, / each volume is tied to the partitions listed in Drives[]. 
+ */
+
+
+#define _CODE_PAGE	437
+/*
+ * The _CODE_PAGE specifies the OEM code page to be used on the target system. / When it is non LFN configuration, there is no difference
+ * between SBCS code / pages. When LFN is enabled, the code page must always be set correctly. / 437 - U.S. / 720 - Arabic / 737 - Greek /
+ * 775 - Baltic / 850 - Multilingual Latin 1 / 852 - Latin 2 / 855 - Cyrillic / 857 - Turkish / 858 - Multilingual Latin 1 + Euro / 862 -
+ * Hebrew / 866 - Russian / 874 - Thai / 932 - Japanese Shift-JIS (DBCS) / 936 - Simplified Chinese GBK (DBCS) / 949 - Korean (DBCS) / 950
+ * - Traditional Chinese Big5 (DBCS) / 1258 - Vietnam 
+ */
+
+
+#define	_USE_LFN	0
+#define	_MAX_LFN	255     /* Maximum LFN length to handle (max:255) */
+/*
+ * The _USE_LFN option switches the LFN support. / / 0: Disable LFN. / 1: Enable LFN with static working buffer on the bss. NOT REENTRANT.
+ * / 2: Enable LFN with dynamic working buffer on the caller's STACK. / / The working buffer occupies (_MAX_LFN + 1) * 2 bytes. When enable 
+ * LFN, / a Unicode - OEM code conversion function ff_convert() must be added to / the project. 
+ */
+
+
+#define _FS_REENTRANT	0
+#define _TIMEOUT		1000    /* Timeout period in unit of time ticks */
+#define	_SYNC_t			HANDLE  /* Type of sync object used on the OS. */
+                                                                /*
+                                                                 * e.g. HANDLE, OS_EVENT*, ID and etc.. 
+                                                                 */
+/*
+ * To make the FatFs module re-entrant, set _FS_REENTRANT to 1 and add user / provided synchronization handlers, ff_req_grant,
+ * ff_rel_grant, / ff_del_syncobj and ff_cre_syncobj function to the project. 
+ */
+
+
+
+/*
+ * End of configuration options. Do not change followings without care.  
+ */
+/*--------------------------------------------------------------------------*/
+
+
+
+/*
+ * Definitions corresponds to multiple sector size 
+ */
+
+#if _MAX_SS == 512
+#define	SS(fs)	512
+#else
+#if _MAX_SS == 1024 || _MAX_SS == 2048 || _MAX_SS == 4096
+#define	SS(fs)	((fs)->s_size)
+#else
+#error Sector size must be 512, 1024, 2048 or 4096.
+#endif
+#endif
+
+
+
+/*
+ * File system object structure 
+ */
+
+typedef struct _FATFS {
+    BYTE fs_type;               /* FAT sub type */
+    BYTE drive;                 /* Physical drive number */
+    BYTE csize;                 /* Number of sectors per cluster */
+    BYTE n_fats;                /* Number of FAT copies */
+    BYTE wflag;                 /* win[] dirty flag (1:must be written back) */
+    BYTE pad1;
+    WORD id;                    /* File system mount ID */
+    WORD n_rootdir;             /* Number of root directory entries (0 on FAT32) */
+#if _FS_REENTRANT
+    _SYNC_t sobj;               /* Identifier of sync object */
+#endif
+#if _MAX_SS != 512U
+    WORD s_size;                /* Sector size */
+#endif
+#if !_FS_READONLY
+    BYTE fsi_flag;              /* fsinfo dirty flag (1:must be written back) */
+    BYTE pad2;
+    DWORD last_clust;           /* Last allocated cluster */
+    DWORD free_clust;           /* Number of free clusters */
+    DWORD fsi_sector;           /* fsinfo sector */
+#endif
+    DWORD sects_fat;            /* Sectors per fat */
+    DWORD max_clust;            /* Maximum cluster# + 1. Number of clusters is max_clust - 2 */
+    DWORD fatbase;              /* FAT start sector */
+    DWORD dirbase;              /* Root directory start sector (Cluster# on FAT32) */
+    DWORD database;             /* Data start sector */
+    DWORD winsect;              /* Current sector appearing in the win[] */
+    BYTE win[_MAX_SS];          /* Disk access window for Directory/FAT */
+} FATFS;
+
+
+
+/*
+ * Directory object structure 
+ */
+
+typedef struct _DIR {
+    WORD id;                    /* Owner file system mount ID */
+    WORD index;                 /* Current index number */
+    FATFS *fs;                  /* Pointer to the owner file system object */
+    DWORD sclust;               /* Table start cluster (0:Static table) */
+    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 (0xFFFF:No LFN) */
+#endif
+} DIR;
+
+
+
+/*
+ * File object structure 
+ */
+
+typedef struct _FIL {
+    FATFS *fs;                  /* Pointer to the owner file system object */
+    WORD id;                    /* Owner file system mount ID */
+    BYTE flag;                  /* File status flags */
+    BYTE csect;                 /* Sector address in the cluster */
+    DWORD fptr;                 /* File R/W pointer */
+    DWORD fsize;                /* File size */
+    DWORD org_clust;            /* File start cluster */
+    DWORD curr_clust;           /* Current cluster */
+    DWORD dsect;                /* Current data sector */
+#if !_FS_READONLY
+    DWORD dir_sect;             /* Sector containing the directory entry */
+    BYTE *dir_ptr;              /* Ponter to the directory entry in the window */
+#endif
+#if !_FS_TINY
+    BYTE buf[_MAX_SS];          /* File R/W buffer */
+#endif
+} FIL;
+
+
+
+/*
+ * File status structure 
+ */
+
+typedef struct _FILINFO {
+    DWORD fsize;                /* File size */
+    WORD fdate;                 /* Last modified date */
+    WORD ftime;                 /* Last modified time */
+    BYTE fattrib;               /* Attribute */
+    char fname[13];             /* Short file name (8.3 format) */
+#if _USE_LFN
+    char *lfname;               /* Pointer to the LFN buffer */
+    int lfsize;                 /* Size of LFN buffer [bytes] */
+#endif
+} FILINFO;
+
+
+
+/*
+ * DBCS code ranges 
+ */
+
+#if _CODE_PAGE == 932           /* CP932 (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         /* CP936 (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         /* CP949 (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         /* CP950 (Traditional Chinese Big5) */
+#define _DF1S	0x81
+#define _DF1E	0xFE
+#define _DS1S	0x40
+#define _DS1E	0x7E
+#define _DS2S	0xA1
+#define _DS2E	0xFE
+
+#else                           /* SBCS code pages */
+#define _DF1S	0
+
+#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                       /* DBCS configuration */
+
+#if _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
+
+#if _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                           /* SBCS configuration */
+
+#define IsDBCS1(c)	0
+#define IsDBCS2(c)	0
+
+#endif                          /* _DF1S */
+
+
+
+/*
+ * Definitions corresponds to multi partition 
+ */
+
+#if _MULTI_PARTITION            /* Multiple partition configuration */
+
+typedef struct _PARTITION {
+    BYTE pd;                    /* Physical drive# */
+    BYTE pt;                    /* Partition # (0-3) */
+} PARTITION;
+
+extern
+const PARTITION Drives[];       /* Logical drive# to physical location conversion table */
+#define LD2PD(drv) (Drives[drv].pd)     /* Get physical drive# */
+#define LD2PT(drv) (Drives[drv].pt)     /* Get partition# */
+
+#else                           /* Single partition configuration */
+
+#define LD2PD(drv) (drv)        /* Physical drive# is equal to the logical drive# */
+#define LD2PT(drv) 0            /* Always mounts the 1st partition */
+
+#endif
+
+
+
+/*
+ * File function return code (FRESULT) 
+ */
+
+typedef enum {
+    FR_OK = 0,                  /* 0 */
+    FR_DISK_ERR,                /* 1 */
+    FR_INT_ERR,                 /* 2 */
+    FR_NOT_READY,               /* 3 */
+    FR_NO_FILE,                 /* 4 */
+    FR_NO_PATH,                 /* 5 */
+    FR_INVALID_NAME,            /* 6 */
+    FR_DENIED,                  /* 7 */
+    FR_EXIST,                   /* 8 */
+    FR_INVALID_OBJECT,          /* 9 */
+    FR_WRITE_PROTECTED,         /* 10 */
+    FR_INVALID_DRIVE,           /* 11 */
+    FR_NOT_ENABLED,             /* 12 */
+    FR_NO_FILESYSTEM,           /* 13 */
+    FR_MKFS_ABORTED,            /* 14 */
+    FR_TIMEOUT                  /* 15 */
+} FRESULT;
+
+
+
+/*--------------------------------------------------------------*/
+/*
+ * FatFs module application interface 
+ */
+
+FRESULT f_mount(BYTE, FATFS *); /* Mount/Unmount a logical drive */
+FRESULT f_open(FIL *, const char *, BYTE);      /* Open or create a file */
+FRESULT f_read(FIL *, void *, UINT, UINT *);    /* Read data from a file */
+FRESULT f_write(FIL *, const void *, UINT, UINT *);     /* Write data to a file */
+FRESULT f_lseek(FIL *, DWORD);  /* Move file pointer of a file object */
+FRESULT f_close(FIL *);         /* Close an open file object */
+FRESULT f_opendir(DIR *, const char *); /* Open an existing directory */
+FRESULT f_readdir(DIR *, FILINFO *);    /* Read a directory item */
+FRESULT f_stat(const char *, FILINFO *);        /* Get file status */
+FRESULT f_getfree(const char *, DWORD *, FATFS **);     /* Get number of free clusters on the drive */
+FRESULT f_truncate(FIL *);      /* Truncate file */
+FRESULT f_sync(FIL *);          /* Flush cached data of a writing file */
+FRESULT f_unlink(const char *); /* Delete an existing file or directory */
+FRESULT f_mkdir(const char *);  /* Create a new directory */
+FRESULT f_chmod(const char *, BYTE, BYTE);      /* Change attriburte of the file/dir */
+FRESULT f_utime(const char *, const FILINFO *); /* Change timestamp of the file/dir */
+FRESULT f_rename(const char *, const char *);   /* Rename/Move a file or directory */
+FRESULT f_forward(FIL *, UINT(*)(const BYTE *, UINT), UINT, UINT *);    /* Forward data to the stream */
+FRESULT f_mkfs(BYTE, BYTE, WORD);       /* Create a file system on the drive */
+
+#if _USE_STRFUNC
+int f_putc(int, FIL *);         /* Put a character to the file */
+int f_puts(const char *, FIL *);        /* Put a string to the file */
+int f_printf(FIL *, const char *, ...); /* Put a formatted string to the file */
+char *f_gets(char *, int, FIL *);       /* 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)
+#ifndef EOF
+#define EOF -1
+#endif
+#endif
+
+
+
+/*--------------------------------------------------------------*/
+/*
+ * User defined functions 
+ */
+
+/*
+ * Real time clock 
+ */
+#if !_FS_READONLY
+DWORD get_fattime(void);        /* 31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */
+                                                        /*
+                                                         * 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) 
+                                                         */
+#endif
+
+/*
+ * Unicode - OEM code conversion 
+ */
+#if _USE_LFN
+WCHAR ff_convert(WCHAR, UINT);
+#endif
+
+/*
+ * Sync functions 
+ */
+#if _FS_REENTRANT
+BOOL ff_cre_syncobj(BYTE, _SYNC_t *);
+BOOL ff_del_syncobj(_SYNC_t);
+BOOL ff_req_grant(_SYNC_t);
+void ff_rel_grant(_SYNC_t);
+#endif
+
+
+
+/*--------------------------------------------------------------*/
+/*
+ * Flags and offset address 
+ */
+
+
+/*
+ * File access control and file status flags (FIL.flag) 
+ */
+
+#define	FA_READ				0x01
+#define	FA_OPEN_EXISTING	0x00
+#if _FS_READONLY == 0
+#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
+#define FA__ERROR			0x80
+
+
+/*
+ * 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 */
+
+
+/*
+ * FatFs refers the members in the FAT structures with byte offset instead / of structure member because there are incompatibility of the
+ * packing option / between various compilers. 
+ */
+
+#define BS_jmpBoot			0
+#define BS_OEMName			3
+#define BPB_BytsPerSec		11
+#define BPB_SecPerClus		13
+#define BPB_RsvdSecCnt		14
+#define BPB_NumFATs			16
+#define BPB_RootEntCnt		17
+#define BPB_TotSec16		19
+#define BPB_Media			21
+#define BPB_FATSz16			22
+#define BPB_SecPerTrk		24
+#define BPB_NumHeads		26
+#define BPB_HiddSec			28
+#define BPB_TotSec32		32
+#define BS_55AA				510
+
+#define BS_DrvNum			36
+#define BS_BootSig			38
+#define BS_VolID			39
+#define BS_VolLab			43
+#define BS_FilSysType		54
+
+#define BPB_FATSz32			36
+#define BPB_ExtFlags		40
+#define BPB_FSVer			42
+#define BPB_RootClus		44
+#define BPB_FSInfo			48
+#define BPB_BkBootSec		50
+#define BS_DrvNum32			64
+#define BS_BootSig32		66
+#define BS_VolID32			67
+#define BS_VolLab32			71
+#define BS_FilSysType32		82
+
+#define	FSI_LeadSig			0
+#define	FSI_StrucSig		484
+#define	FSI_Free_Count		488
+#define	FSI_Nxt_Free		492
+
+#define MBR_Table			446
+
+#define	DIR_Name			0
+#define	DIR_Attr			11
+#define	DIR_NTres			12
+#define	DIR_CrtTime			14
+#define	DIR_CrtDate			16
+#define	DIR_FstClusHI		20
+#define	DIR_WrtTime			22
+#define	DIR_WrtDate			24
+#define	DIR_FstClusLO		26
+#define	DIR_FileSize		28
+#define	LDIR_Ord			0
+#define	LDIR_Attr			11
+#define	LDIR_Type			12
+#define	LDIR_Chksum			13
+#define	LDIR_FstClusLO		26
+
+
+
+/*--------------------------------*/
+/*
+ * 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
+
+
+#endif                          /* _FATFS */

+ 48 - 36
snes/fatfstest/integer.h

@@ -1,36 +1,48 @@
-/*-------------------------------------------*/
-/* Integer type definitions for FatFs module */
-/*-------------------------------------------*/
-
-#ifndef _INTEGER
-
-
-/* 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 signed char		CHAR;
-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;
-
-/* Boolean type */
-// enum { false = 0 , true } bool;
-
-typedef int BOOL;
-#define FALSE 0 
-#define TRUE  1
-
-#define _INTEGER
-#endif
+/*-------------------------------------------*/
+/*
+ * Integer type definitions for FatFs module 
+ */
+/*-------------------------------------------*/
+
+#ifndef _INTEGER
+
+
+/*
+ * 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 signed char CHAR;
+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;
+
+/*
+ * Boolean type 
+ */
+// enum { false = 0 , true } bool;
+
+typedef int BOOL;
+#define FALSE 0
+#define TRUE  1
+
+#define _INTEGER
+#endif

+ 300 - 313
snes/fatfstest/main.c

@@ -1,313 +1,300 @@
-#include "ff.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-#include "data.h";
-#include "pad.h";
-#include "event.h";
-#include "myEvents.h";
-#include "ressource.h";
-#include "PPU.h"
-#include "debug.h"
-#include "crc.h"
-
-/*
-
-o debug STA global
-o optimize internal transfer buffer
-o direct write to mempage
-o relocate main code
-o exec loaded file
-*/
-
-//#pragma section CODE=BANK2,offset $2:0000
-
-#define ROM_NAME "MRDO.SMC"
-//#define ROM_NAME "TEST.TXT"
-#define BLOCK_SIZE 512
-#define BASE_ADDR 0x008000
-
-
-padStatus pad1;
-
-DWORD acc_size;                 /* Work register for fs command */
-WORD acc_files, acc_dirs;
-
-FILINFO finfo;
-FATFS fatfs[2];             /* File system object for each logical drive */
-BYTE Buff[512];            /* Working buffer */
-
-DWORD p1, p2, p3;
-DWORD addr;
-DWORD crc_addr; 
-UINT crc;
- 
-BYTE res,bank;
-WORD w1;
-UINT s1, s2, cnt;
-
-FATFS *fs;
-DIR dir;                        /* Directory object */
-FIL file1,file2;
-
-
-
-
-void initInternalRegisters(void) {
-	characterLocation[0] = 0x0000;
-	characterLocation[1] = 0x0000;
-	characterLocation[2] = 0x0000;
-	characterLocation[3] = 0x0000;
-	debug_init();
-}
-
-void preInit(void) {
-	// For testing purpose ... 
-	// Insert code here to be executed before register init
-}
-
-DWORD get_fattime ()
-{
-    time_t rawtime;
-    struct tm * ptm;
-    //time ( &rawtime );
-    ptm = gmtime ( &rawtime );
-
-    return	  ((DWORD)(ptm->tm_year - 80) << 25)
-  			| ((DWORD)(ptm->tm_mon +1) << 21)
-  			| ((DWORD)ptm->tm_mday << 16)
-  			| ((DWORD)ptm->tm_hour << 11)
-  			| ((DWORD)ptm->tm_min << 5)
-  			| ((DWORD)ptm->tm_sec >> 1);
-}
-
-void halt(void) {
-    while(1);
-    
-}
-
-void put_rc (FRESULT rc){
-    const char *p;
-    static const char str[] =
-        "OK\0" "NOT_READY\0" "NO_FILE\0" "NO_PATH\0" "INVALID_NAME\0" "INVALID_DRIVE\0"
-        "DENIED\0" "EXIST\0" "RW_ERROR\0" "WRITE_PROTECTED\0" "NOT_ENABLED\0"
-        "NO_FILESYSTEM\0" "INVALID_OBJECT\0" "MKFS_ABORTED\0";
-    FRESULT i;
-
-    for (p = str, i = 0; i != rc && *p; i++) {
-        while(*p++);
-    }
-    printfc("rc=%u FR_%s\n", (WORD)rc, p);
-}
-
-
-FRESULT scan_files (char* path){
-    DIR dirs;
-    FRESULT res;
-    int i;
-
-    if ((res = f_opendir(&dirs, path)) == FR_OK) {
-        i = strlen(path);
-        while (((res = f_readdir(&dirs, &finfo)) == FR_OK) && finfo.fname[0]) {
-            if (finfo.fattrib & AM_DIR) {
-                acc_dirs++;
-                *(path+i) = '/'; strcpy(path+i+1, &finfo.fname[0]);
-                res = scan_files(path);
-                *(path+i) = '\0';
-                if (res != FR_OK) break;
-            } else {
-                acc_files++;
-                acc_size += finfo.fsize;
-            }
-        }
-    }
-    return res;
-}
-
-void wait(void){
-    printfc("SNES::wait: press A to continue\n");
-    enablePad();
-    //waitForVBlank();
-    pad1 = readPad((byte) 0);
-    while(!pad1.A) {
-        waitForVBlank();
-        pad1 = readPad((byte) 0);
-    }
-    printfc("SNES::wait: done\n");
-    //disablePad();
-}
-
-void boot(void){
-    #asm 
-        jsl  $008000 
-    #endasm 
-}
-
-void main(void) {
-	word i,j;
-    BYTE res;
-	initInternalRegisters();
-    
-	*(byte*) 0x2105 = 0x01;	// MODE 1 value
-	*(byte*) 0x212c = 0x01; // Plane 0 (bit one) enable register
-	*(byte*) 0x212d = 0x00;	// All subPlane disable
-	*(byte*) 0x2100 = 0x0f; // enable background
-
-    debug_enable();
-
-    printfs(0,"FATFS OPTIXX.ORG ");
-    wait();
-    printfc("SNES::main: Try to init disk\n");
-
-    put_rc(f_mount(0, &fatfs[0]));
-    
-#if 0
-    printfc("SNES::main: Try to get free\n");
-    res = f_getfree("", &p2, &fs);
-    if (res)
-        put_rc(res);
-
-  
-    printfc("SNES::main: printf fs results\n");
-    printfs(1,"FAT TYPE = %u\nBYTES/CLUSTER = %lu\nNUMBER OF FATS = %u\n"
-            "ROOT DIR ENTRIES = %u\nSECTORS/FAT = %lu\nNUMBER OF CLUSTERS = %lu\n"
-            "FAT START = %lu\nDIR START LBA,CLUSTER = %lu\nDATA START LBA = %lu\n",
-            (WORD)fs->fs_type, (DWORD)fs->csize * 512, (WORD)fs->n_fats,
-            fs->n_rootdir, (DWORD)fs->sects_fat, (DWORD)fs->max_clust - 2,
-            fs->fatbase, fs->dirbase, fs->database);
-    
-    acc_size = acc_files = acc_dirs = 0;
-    printfc("SNES::main: scan files\n");
-    res = scan_files("");
-    if (res)
-        put_rc(res);
-    
-    printfs(12,"%u FILES, %lu BYTES\n%u FOLDERS\n"
-           "%lu KB TOTAK DISK SPACE\n%lu KB AVAILABLE\n",
-           acc_files, acc_size, acc_dirs,
-           (fs->max_clust - 2) * (fs->csize / 2), p2 * (fs->csize / 2));
-  
-    res = f_opendir(&dir, "");
-    if (res)
-      put_rc(res);
-
-    p1 = s1 = s2 = 0;
-    cnt = 0;
-    wait();
-    clears();
-    printfc("SNES::main: read dir\n");
-    for(;;) {
-        res = f_readdir(&dir, &finfo);
-        if ((res != FR_OK) || !finfo.fname[0]) break;
-        if (finfo.fattrib & AM_DIR) {
-            s2++;
-        } else {
-            s1++; p1 += finfo.fsize;
-        }
-        ;
-        
-        printfs(cnt,"%c%c%c%c%c %u/%02u/%02u %02u:%02u %9lu\n%s\n",
-                    (finfo.fattrib & AM_DIR) ? 'D' : '-',
-                    (finfo.fattrib & AM_RDO) ? 'R' : '-',
-                    (finfo.fattrib & AM_HID) ? 'H' : '-',
-                    (finfo.fattrib & AM_SYS) ? 'S' : '-',
-                    (finfo.fattrib & AM_ARC) ? 'A' : '-',
-                    (finfo.fdate >> 9) + 1980, (finfo.fdate >> 5) & 15, finfo.fdate & 31,
-                    (finfo.ftime >> 11), (finfo.ftime >> 5) & 63,
-                    finfo.fsize, &(finfo.fname[0]));
-        cnt+=2;
-        /*
-        printfs(cnt,"%u/%02u/%02u %02u:%02u %9lu\n%s\n",
-                    (finfo.fdate >> 9) + 1980, (finfo.fdate >> 5) & 15, finfo.fdate & 31,
-                    (finfo.ftime >> 11), (finfo.ftime >> 5) & 63,
-                    finfo.fsize, &(finfo.fname[0]));
-        */
-        if (cnt && cnt==20){
-          cnt = 0;
-          wait();
-          clears();
-        }
-    }
-    
-    printfs(20,"%4u FILES\n%10lu BYTES TOTAL\n%4u DIRS", s1, p1, s2);
-    if (f_getfree("", &p1, &fs) == FR_OK)
-        printfs(23,"%10luK BYTES FREE\n", p1 * fs->csize / 2);
-
-    wait();
-    clears();
-#endif
-    printfc("SNES::main: open %s \n",ROM_NAME);
-    printfs(0,"OPEN %s",ROM_NAME);
-    put_rc(f_open(&file1, ROM_NAME, FA_READ));
-
-
-    p1 = 32768L * 8; 
-    p2 = 0 ;
-    p3 = 0;
-    cnt = 0;
-    bank =0;
-    addr = BASE_ADDR;
-    crc_addr = BASE_ADDR;
-    while (p1) {
-        cnt = BLOCK_SIZE;
-        p1 -= BLOCK_SIZE;
-        res = f_read(&file1, (byte*)(addr) , cnt, &s2);
-        printfc("SNES::main: read cnt=%i p1=%li p2=%li s2=%i\n",cnt,p1,p2,s2);
-        //printfc("SNES::main: file %x %x %x %x\n",Buff[0],Buff[1],Buff[2],Buff[3]);
-        if (res != FR_OK) {
-            printfc("SNES::main: read failed\n");
-            put_rc(res);
-            break;
-        }
-        p2 += s2;
-        if (cnt != s2){
-          printfc("SNES::main: read cnt=%i s2=%i\n",cnt,s2);
-          break;
-        }
-<<<<<<< HEAD:snes/fatfstest/main.c
-        printfs(1,"%lu BYTES READ", p2);
-=======
-        printfs(1 + bank,"BANK %X  ADDR %LX",bank,addr);
->>>>>>> c1203c3519d95a92e82a6f2ebf741ad663e46e33:snes/fatfstest/main.c
-        /*
-        for (i=0; i<BLOCK_SIZE; i++){
-          *(byte*)(addr  + i) = Buff[i];
-        }
-        */
-<<<<<<< HEAD:snes/fatfstest/main.c
-        printfs(2,"%i BYTES TANS %x",BLOCK_SIZE, 0x020000 + p2);
-=======
-        printfc("SNES::main: mem  %x %x %x %x %lx\n",*(byte*)(addr  + 0) ,*(byte*)(addr  + 1) ,*(byte*)(addr  + 2) ,*(byte*)(addr  + 3) ,addr);
-        //if (addr=0x10fe00){
-            
-        printc_packet(addr,512,(byte*)(addr));
-            
-        //}
-        
-        addr+=s2;
-        if (addr%0x10000==0){
-    		//crc = crc_update_mem(crc_addr,0x8000);
-            //printfc("addr=%lx crc=%x\n",crc_addr,crc);
-            //printfs(1 + bank,"BANK %X  ADDR %LX CRC %X",bank,addr,crc);
-            addr+=0x8000;
-            //crc_addr+=0x8000;
-            bank++;
-        }
->>>>>>> c1203c3519d95a92e82a6f2ebf741ad663e46e33:snes/fatfstest/main.c
-    }
-    put_rc(f_close(&file1));
-    boot();
-    while(1){
-      wait();
-	}	
-	while(1);
-}
-
-void IRQHandler(void) {
-}
-
-void NMIHandler(void) {
-	//processEvents();
-}
+#include "ff.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "data.h";
+#include "pad.h";
+#include "event.h";
+#include "myEvents.h";
+#include "ressource.h";
+#include "PPU.h"
+#include "debug.h"
+#include "crc.h"
+
+    /*
+     *   o debug STA global o optimize internal transfer buffer o direct write to mempage o relocate main code o exec loaded file 
+     */
+
+    // #pragma section CODE=BANK2,offset $2:0000
+
+#define ROM_NAME "MRDO.SMC"
+    // #define ROM_NAME "TEST.TXT"
+#define BLOCK_SIZE 512
+#define BASE_ADDR 0x008000
+padStatus pad1;
+DWORD acc_size;                 /* Work register for fs command */
+WORD acc_files,
+ acc_dirs;
+FILINFO finfo;
+FATFS fatfs[2];                 /* File system object for each logical * drive */
+BYTE Buff[512];                 /* Working buffer */
+DWORD p1,
+ p2,
+ p3;
+DWORD addr;
+DWORD crc_addr;
+UINT crc;
+BYTE res,
+ bank;
+WORD w1;
+UINT s1,
+ s2,
+ cnt;
+FATFS *fs;
+DIR dir;                        /* Directory object */
+FIL file1,
+ file2;
+void initInternalRegisters(void)
+{
+    characterLocation[0] = 0x0000;
+    characterLocation[1] = 0x0000;
+    characterLocation[2] = 0x0000;
+    characterLocation[3] = 0x0000;
+    debug_init();
+} void
+ preInit(void)
+{
+
+    // For testing purpose ... 
+    // Insert code here to be executed before register init
+} DWORD get_fattime()
+{
+    time_t rawtime;
+    struct tm *ptm;
+
+    // time ( &rawtime );
+    ptm = gmtime(&rawtime);
+    return ((DWORD) (ptm->tm_year - 80) << 25)
+        | ((DWORD) (ptm->tm_mon + 1) << 21)
+        | ((DWORD) ptm->tm_mday << 16)
+        | ((DWORD) ptm->tm_hour << 11)
+        | ((DWORD) ptm->tm_min << 5) | ((DWORD) ptm->tm_sec >> 1);
+}
+
+void halt(void)
+{
+    while (1);
+}
+
+void put_rc(FRESULT rc)
+{
+    const char *p;
+    static const char str[] =
+        "OK\0" "NOT_READY\0" "NO_FILE\0" "NO_PATH\0" "INVALID_NAME\0"
+        "INVALID_DRIVE\0" "DENIED\0" "EXIST\0" "RW_ERROR\0"
+        "WRITE_PROTECTED\0" "NOT_ENABLED\0" "NO_FILESYSTEM\0"
+        "INVALID_OBJECT\0" "MKFS_ABORTED\0";
+    FRESULT i;
+    for (p = str, i = 0; i != rc && *p; i++) {
+        while (*p++);
+    }
+    printfc("rc=%u FR_%s\n", (WORD) rc, p);
+}
+
+FRESULT scan_files(char *path)
+{
+    DIR dirs;
+    FRESULT res;
+    int i;
+    if ((res = f_opendir(&dirs, path)) == FR_OK) {
+        i = strlen(path);
+        while (((res = f_readdir(&dirs, &finfo)) == FR_OK)
+               && finfo.fname[0]) {
+            if (finfo.fattrib & AM_DIR) {
+                acc_dirs++;
+                *(path + i) = '/';
+                strcpy(path + i + 1, &finfo.fname[0]);
+                res = scan_files(path);
+                *(path + i) = '\0';
+                if (res != FR_OK)
+                    break;
+            } else {
+                acc_files++;
+                acc_size += finfo.fsize;
+            }
+        }
+    }
+    return res;
+}
+
+void wait(void)
+{
+    printfc("SNES::wait: press A to continue\n");
+    enablePad();
+
+    // waitForVBlank();
+    pad1 = readPad((byte) 0);
+    while (!pad1.A) {
+        waitForVBlank();
+        pad1 = readPad((byte) 0);
+    }
+    printfc("SNES::wait: done\n");
+
+    // disablePad();
+}
+
+void boot(void)
+{
+
+#asm
+    jsl $008000
+#endasm
+} void
+ main(void)
+{
+    word i,
+     j;
+    BYTE res;
+    initInternalRegisters();
+    *(byte *) 0x2105 = 0x01;    // MODE 1 value
+    *(byte *) 0x212c = 0x01;    // Plane 0 (bit one) enable register
+    *(byte *) 0x212d = 0x00;    // All subPlane disable
+    *(byte *) 0x2100 = 0x0f;    // enable background
+    debug_enable();
+    printfs(0, "FATFS OPTIXX.ORG ");
+
+    printfc("SNES::main: Try to init disk\n");
+    put_rc(f_mount(0, &fatfs[0]));
+
+#if 0
+    printfc("SNES::main: Try to get free\n");
+    res = f_getfree("", &p2, &fs);
+    if (res)
+        put_rc(res);
+    printfc("SNES::main: printf fs results\n");
+    printfs(1,
+            "FAT TYPE = %u\nBYTES/CLUSTER = %lu\nNUMBER OF FATS = %u\n"
+            "ROOT DIR ENTRIES = %u\nSECTORS/FAT = %lu\nNUMBER OF CLUSTERS = %lu\n"
+            "FAT START = %lu\nDIR START LBA,CLUSTER = %lu\nDATA START LBA = %lu\n",
+            (WORD) fs->fs_type, (DWORD) fs->csize * 512,
+            (WORD) fs->n_fats, fs->n_rootdir, (DWORD) fs->sects_fat,
+            (DWORD) fs->max_clust - 2, fs->fatbase, fs->dirbase, fs->database);
+    acc_size = acc_files = acc_dirs = 0;
+    printfc("SNES::main: scan files\n");
+    res = scan_files("");
+    if (res)
+        put_rc(res);
+    printfs(12, "%u FILES, %lu BYTES\n%u FOLDERS\n"
+            "%lu KB TOTAK DISK SPACE\n%lu KB AVAILABLE\n", acc_files,
+            acc_size, acc_dirs, (fs->max_clust - 2) * (fs->csize / 2),
+            p2 * (fs->csize / 2));
+    res = f_opendir(&dir, "");
+    if (res)
+        put_rc(res);
+    p1 = s1 = s2 = 0;
+    cnt = 0;
+    wait();
+    clears();
+    printfc("SNES::main: read dir\n");
+    for (;;) {
+        res = f_readdir(&dir, &finfo);
+        if ((res != FR_OK) || !finfo.fname[0])
+            break;
+        if (finfo.fattrib & AM_DIR) {
+            s2++;
+        } else {
+            s1++;
+            p1 += finfo.fsize;
+        }
+        ;
+        printfs(cnt, "%c%c%c%c%c %u/%02u/%02u %02u:%02u %9lu\n%s\n",
+                (finfo.fattrib & AM_DIR) ? 'D' : '-',
+                (finfo.fattrib & AM_RDO) ? 'R' : '-',
+                (finfo.fattrib & AM_HID) ? 'H' : '-',
+                (finfo.fattrib & AM_SYS) ? 'S' : '-',
+                (finfo.fattrib & AM_ARC) ? 'A' : '-',
+                (finfo.fdate >> 9) + 1980, (finfo.fdate >> 5) & 15,
+                finfo.fdate & 31, (finfo.ftime >> 11),
+                (finfo.ftime >> 5) & 63, finfo.fsize, &(finfo.fname[0]));
+        cnt += 2;
+
+        /*
+         *  printfs(cnt,"%u/%02u/%02u %02u:%02u %9lu\n%s\n", (finfo.fdate >> 9) + 1980, (finfo.fdate >> 5) & 15, finfo.fdate & 31,
+         * (finfo.ftime >> 11), (finfo.ftime >> 5) & 63, finfo.fsize, &(finfo.fname[0])); 
+         */
+        if (cnt && cnt == 20) {
+            cnt = 0;
+            wait();
+            clears();
+        }
+    }
+    printfs(20, "%4u FILES\n%10lu BYTES TOTAL\n%4u DIRS", s1, p1, s2);
+    if (f_getfree("", &p1, &fs) == FR_OK)
+        printfs(23, "%10luK BYTES FREE\n", p1 * fs->csize / 2);
+    wait();
+    clears();
+
+#endif                          /* */
+    printfc("SNES::main: open %s \n", ROM_NAME);
+    printfs(0, "OPEN %s", ROM_NAME);
+    put_rc(f_open(&file1, ROM_NAME, FA_READ));
+    p1 = 32768L * 8;
+    p2 = 0;
+    p3 = 0;
+    cnt = 0;
+    bank = 0;
+    addr = BASE_ADDR;
+    crc_addr = BASE_ADDR;
+    while (p1) {
+        cnt = BLOCK_SIZE;
+        p1 -= BLOCK_SIZE;
+        res = f_read(&file1, (byte *) (addr), cnt, &s2);
+        printfc("SNES::main: read cnt=%i p1=%li p2=%li s2=%i\n", cnt,
+                p1, p2, s2);
+
+        // printfc("SNES::main: file %x %x %x
+        // %x\n",Buff[0],Buff[1],Buff[2],Buff[3]);
+        if (res != FR_OK) {
+            printfc("SNES::main: read failed\n");
+            put_rc(res);
+            break;
+        }
+        p2 += s2;
+        if (cnt != s2) {
+            printfc("SNES::main: read cnt=%i s2=%i\n", cnt, s2);
+            break;
+        }
+        printfs(1 + bank, "BANK %X  ADDR %LX", bank, addr);
+
+        /*
+         *  for (i=0; i<BLOCK_SIZE; i++){ *(byte*)(addr + i) = Buff[i]; } 
+         */
+        printfc("SNES::main: mem  %x %x %x %x %lx\n",
+                *(byte *) (addr + 0), *(byte *) (addr + 1),
+                *(byte *) (addr + 2), *(byte *) (addr + 3), addr);
+
+        // if (addr=0x10fe00){
+        printc_packet(addr, 512, (byte *) (addr));
+
+        // }
+        addr += s2;
+        if (addr % 0x10000 == 0) {
+
+            // crc = crc_update_mem(crc_addr,0x8000);
+            // printfc("addr=%lx crc=%x\n",crc_addr,crc);
+            // printfs(1 + bank,"BANK %X ADDR %LX CRC
+            // %X",bank,addr,crc);
+            addr += 0x8000;
+
+            // crc_addr+=0x8000;
+            bank++;
+        }
+    }
+    put_rc(f_close(&file1));
+    boot();
+    while (1) {
+        wait();
+    }
+    while (1);
+}
+
+void IRQHandler(void)
+{
+} void
+ NMIHandler(void)
+{
+
+    // processEvents();
+}

+ 96 - 96
snes/fatfstest/myEvents.c

@@ -1,97 +1,97 @@
-#include "data.h";
-#include "pad.h";
-#include "event.h";
-
-extern padStatus pad1;
-extern word scrollValue;
-
-char fadeOut(word counter) {
-	static byte fadeOutValue;
-
-	if(counter == 0) {
-		// init fade value
-		fadeOutValue = 0x0f;
-	} else {
-		fadeOutValue--;
-	}
-
-	*(byte*) 0x2100 = fadeOutValue;	
-
-	if(fadeOutValue == 0x00) {
-		return EVENT_STOP;
-	} else { 
-		return EVENT_CONTINUE;
-	}
-}
-
-char fadeIn(word counter) {
-	static byte fadeInValue;
-
-	if(counter == 0) {
-		// init fade value
-		fadeInValue = 0x00;
-	} else {
-		fadeInValue++;
-	}
-
-	*(byte*) 0x2100 = fadeInValue;	
-
-	if(fadeInValue >= 0x0f) {
-		return EVENT_STOP;
-	} else { 
-		return EVENT_CONTINUE;
-	}
-}
-
-char mosaicOut(word counter) {
-	static byte mosaicOutValue;
-
-	if(counter == 0) {
-		// init fade value
-		mosaicOutValue = 0xff;
-	} else {
-		mosaicOutValue -= 0x10;
-	}
-
-	*(byte*) 0x2106 = mosaicOutValue;	
-
-	if(mosaicOutValue == 0x0f) {
-		return EVENT_STOP;
-	} else { 
-		return EVENT_CONTINUE;
-	}
-}
-
-char mosaicIn(word counter) {
-	static byte mosaicInValue;
-
-	if(counter == 0) {
-		// init fade value
-		mosaicInValue = 0x0f;
-	} else {
-		mosaicInValue += 0x10;
-	}
-
-	*(byte*) 0x2106 = mosaicInValue;	
-
-	if(mosaicInValue == 0xff) {
-		return EVENT_STOP;
-	} else { 
-		return EVENT_CONTINUE;
-	}
-}
-
-char NMIReadPad(word counter) {
-	pad1 = readPad((byte) 0);
-
-	return EVENT_CONTINUE;
-}
-
-char scrollLeft(word counter) {
-	scrollValue++;
-
-	*(byte*) 0x210d = (byte) scrollValue;
-	*(byte*) 0x210d = (byte) (scrollValue>>8);
-
-	return EVENT_CONTINUE;
+#include "data.h";
+#include "pad.h";
+#include "event.h";
+
+extern padStatus pad1;
+extern word scrollValue;
+
+char fadeOut(word counter) {
+	static byte fadeOutValue;
+
+	if(counter == 0) {
+		// init fade value
+		fadeOutValue = 0x0f;
+	} else {
+		fadeOutValue--;
+	}
+
+	*(byte*) 0x2100 = fadeOutValue;	
+
+	if(fadeOutValue == 0x00) {
+		return EVENT_STOP;
+	} else { 
+		return EVENT_CONTINUE;
+	}
+}
+
+char fadeIn(word counter) {
+	static byte fadeInValue;
+
+	if(counter == 0) {
+		// init fade value
+		fadeInValue = 0x00;
+	} else {
+		fadeInValue++;
+	}
+
+	*(byte*) 0x2100 = fadeInValue;	
+
+	if(fadeInValue >= 0x0f) {
+		return EVENT_STOP;
+	} else { 
+		return EVENT_CONTINUE;
+	}
+}
+
+char mosaicOut(word counter) {
+	static byte mosaicOutValue;
+
+	if(counter == 0) {
+		// init fade value
+		mosaicOutValue = 0xff;
+	} else {
+		mosaicOutValue -= 0x10;
+	}
+
+	*(byte*) 0x2106 = mosaicOutValue;	
+
+	if(mosaicOutValue == 0x0f) {
+		return EVENT_STOP;
+	} else { 
+		return EVENT_CONTINUE;
+	}
+}
+
+char mosaicIn(word counter) {
+	static byte mosaicInValue;
+
+	if(counter == 0) {
+		// init fade value
+		mosaicInValue = 0x0f;
+	} else {
+		mosaicInValue += 0x10;
+	}
+
+	*(byte*) 0x2106 = mosaicInValue;	
+
+	if(mosaicInValue == 0xff) {
+		return EVENT_STOP;
+	} else { 
+		return EVENT_CONTINUE;
+	}
+}
+
+char NMIReadPad(word counter) {
+	pad1 = readPad((byte) 0);
+
+	return EVENT_CONTINUE;
+}
+
+char scrollLeft(word counter) {
+	scrollValue++;
+
+	*(byte*) 0x210d = (byte) scrollValue;
+	*(byte*) 0x210d = (byte) (scrollValue>>8);
+
+	return EVENT_CONTINUE;
 }

+ 6 - 6
snes/fatfstest/myEvents.h

@@ -1,6 +1,6 @@
-char fadeOut(word counter);
-char fadeIn(word counter);
-char mosaicOut(word counter);
-char mosaicIn(word counter);
-char NMIReadPad(word counter);
-char scrollLeft(word counter);
+char fadeOut(word counter);
+char fadeIn(word counter);
+char mosaicOut(word counter);
+char mosaicIn(word counter);
+char NMIReadPad(word counter);
+char scrollLeft(word counter);

+ 23 - 23
snes/fatfstest/pad.c

@@ -1,23 +1,23 @@
-#include "data.h";
-#include "pad.h";
-#include "debug.h";
-
-void enablePad(void) {
-	// Enable pad reading and NMI
-	*(byte*)0x4200 = 0x01;
-}
-
-void disablePad(void) {
-    // Enable pad reading and NMI
-    *(byte*)0x4200 = 0x00;
-}
-
-padStatus readPad(byte padNumber) {
-	word test;
-	padStatus *status;
-	padNumber = padNumber << 1;
-	test = (word) *(byte*)0x4218+padNumber << 8;
-	test |= (word) *(byte*)0x4219+padNumber;
-	status = (padStatus *) &test;
-	return *status;
-}
+#include "data.h";
+#include "pad.h";
+#include "debug.h";
+
+void enablePad(void) {
+	// Enable pad reading and NMI
+	*(byte*)0x4200 = 0x01;
+}
+
+void disablePad(void) {
+    // Enable pad reading and NMI
+    *(byte*)0x4200 = 0x00;
+}
+
+padStatus readPad(byte padNumber) {
+	word test;
+	padStatus *status;
+	padNumber = padNumber << 1;
+	test = (word) *(byte*)0x4218+padNumber << 8;
+	test |= (word) *(byte*)0x4219+padNumber;
+	status = (padStatus *) &test;
+	return *status;
+}

+ 20 - 20
snes/fatfstest/pad.h

@@ -1,20 +1,20 @@
-typedef struct padStatus{
-	byte right:1;
-	byte left:1;
-	byte down:1;
-	byte up:1;	
-	byte start:1;	// Enter
-	byte select:1;	// Space
-	byte Y:1;	// X
-	byte B:1;	// C
-	//--------------------------------
-	byte Dummy:4;
-	byte R:1;	// Z
-	byte L:1;	// A
-	byte X:1; 	// S
-	byte A:1;	// D
-} padStatus;
-
-extern void enablePad(void);
-extern void disablePad(void);
-extern padStatus readPad(byte padNumber);
+typedef struct padStatus {
+    byte right:1;
+    byte left:1;
+    byte down:1;
+    byte up:1;
+    byte start:1;               // Enter
+    byte select:1;              // Space
+    byte Y:1;                   // X
+    byte B:1;                   // C
+    // --------------------------------
+    byte Dummy:4;
+    byte R:1;                   // Z
+    byte L:1;                   // A
+    byte X:1;                   // S
+    byte A:1;                   // D
+} padStatus;
+
+extern void enablePad(void);
+extern void disablePad(void);
+extern padStatus readPad(byte padNumber);

+ 2 - 2
snes/fatfstest/ressource.h

@@ -1,2 +1,2 @@
-
-extern word debugFont_pic[];
+
+extern word debugFont_pic[];