refactor last debug calls

mature

.gitignore

@@ -27,3 +27,12 @@
 *.vfat
 *.wla*
 *.rcc
+*.log
+bootloader
+snesuploader
+tmtags
+bsnes
+web
+ucon64.exe
+
+

README

@@ -0,0 +1,8 @@
+  ________        .__        __    ________               ____  ________
+  \_____  \  __ __|__| ____ |  | __\______ \   _______  _/_   |/  _____/
+   /  / \  \|  |  \  |/ ___\|  |/ / |    |  \_/ __ \  \/ /|   /   __  \
+  /   \_/.  \  |  /  \  \___|    <  |    `   \  ___/\   / |   \  |__\  \
+  \_____\ \_/____/|__|\___  >__|_ \/_______  /\___  >\_/  |___|\_____  /
+         \__>             \/     \/        \/     \/                 \/
+ 
+                                   www.optixx.org

avr/bootloader/avr.mk

@@ -67,7 +67,7 @@ clean:
 
 .PHONY: all clean interactive-isp interactive-serial launch-bootloader
 
-flash: 
+flash: bootloader.hex
 	$(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -U flash:w:$<
 
 flash-eeprom-%: %.eep.hex

avr/bootloader/bootloader.c

@@ -286,7 +286,7 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
                 boot_page_erase(flash_address.word);
                 sei();
             }
-            uart_puts("\n\r");
+            uart_puts("\n\rWrite Flash");
         }
 
         /*
@@ -406,9 +406,10 @@ void leave_bootloader(void)
      * disconnect usb 
      */
     usbDeviceDisconnect();
+#if 0    
     for (uint8_t i = 0; i < 50; i++)
         _delay_ms(10);          /* 0 means 0x10000, 38*1/f*0x10000 =~ 498ms */
-
+#endif
     /*
      * enable watchdog to soft-reset the uC for clean startup of new application 
      */
@@ -421,6 +422,13 @@ void leave_bootloader(void)
 
 }
 
+void banner(){
+    uart_puts("\n\r");
+    uart_puts("\n\r");
+    uart_puts("\n\r");
+    uart_puts("Quickdev16 Bootloader v0.2\n\r"); 
+    uart_puts("www.optixx.org\n\r");
+}
 
 int __attribute__ ((noreturn, OS_main)) main(void)
 {
@@ -441,12 +449,12 @@ int __attribute__ ((noreturn, OS_main)) main(void)
     uint16_t delay = 0;
     timeout = TIMEOUT;
 
-    uart_puts("Snesram Bootloader v0.1\n\r");
 
     /*
      * if power-on reset, quit bootloader via watchdog reset 
      */
     if (reset & _BV(PORF)) {
+        banner();
         uart_puts("Found power on reset\n\r");
         MCUSR = 0;
         leave_bootloader();
@@ -458,15 +466,11 @@ int __attribute__ ((noreturn, OS_main)) main(void)
         uart_puts("Found watchdog reset\n\r");
         MCUSR = 0;
         wdt_disable();
-        DLED_TGL;
-        _delay_ms(500);
-        DLED_TGL;
-        _delay_ms(500);
-        uart_puts("Jump to main\n\r");
+        uart_puts("Jump to 0x0000\n\r");
         jump_to_app();
     }
 
-
+    banner();
     uart_puts("Enter programming mode\n\r");
     /*
      * else: enter programming mode 

avr/usbload/Makefile

@@ -30,11 +30,16 @@ SIZE    = avr-size
 ifeq ($(DEBUG),1)
     LDFLAGS =  -Wl,-u,vfprintf -lprintf_flt 
     CFLAGS  = -Iusbdrv -I. -DDEBUG_LEVEL=0 
-    OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o  main.o usb_bulk.o uart.o fifo.o sram.o crc.o debug.o dump.o timer.o watchdog.o rle.c loader.o info.o shared_memory.o mmc.o fat.o
+    OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o \
+               main.o usb_bulk.o uart.o fifo.o sram.o crc.o debug.o \
+               dump.o timer.o watchdog.o rle.c loader.o info.o shared_memory.o \
+               irq.o command.o testing.o
 else 
     LDFLAGS =  -Wl,-u
     CFLAGS  = -Iusbdrv -I. -DDEBUG_LEVEL=0 -DNO_DEBUG -DNO_INFO
-    OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o  main.o usb_bulk.o uart.o fifo.o sram.o crc.o debug.o dump.o timer.o watchdog.o rle.c loader.o info.o shared_memory.o
+    OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o  main.o usb_bulk.o \
+              uart.o fifo.o sram.o crc.o debug.o dump.o timer.o watchdog.o rle.c loader.o \
+              info.o shared_memory.o command.o irq.o
 endif
 
 COMPILE = avr-gcc -Wall -Os -DF_CPU=$(F_CPU) $(CFLAGS) -mmcu=$(DEVICE)
@@ -57,11 +62,8 @@ help:
 	@echo "make clean ..... to delete objects and hex file"
 
 hex: main.hex
-	@echo "==============================="
 	@echo "$(TARGET) compiled for: $(DEVICE)"
-	@echo -n "size is: "
-	@$(SIZE) -A $(TARGET).hex | grep "\.sec1" | tr -s " " | cut -d" " -f2
-	@echo "==============================="
+	@./checksize $(TARGET).elf
 
 program: flash fuse
 

avr/usbload/checksize

@@ -5,11 +5,11 @@
 # Creation Date: 2004-12-29
 # Tabsize: 4
 # Copyright: (c) 2005 OBJECTIVE DEVELOPMENT Software GmbH.
-# Revision: $Id: checksize 83 2006-01-05 22:20:53Z cs $
+# Revision: $:Id: checksize 83 2006-01-05 22:20:53Z cs $
 
 error=0
-codelimit=16384  # default value
-datalimit=992   # default value; leave 32 bytes for stack
+codelimit=65536  # default value
+datalimit=4064   # default value; leave 32 bytes for stack
 
 if [ $# -gt 1 ]; then
 	codelimit="$2"

avr/usbload/command.c

@@ -0,0 +1,65 @@
+/*
+ * =====================================================================================
+ *
+ * ________        .__        __    ________               ____  ________
+ * \_____  \  __ __|__| ____ |  | __\______ \   _______  _/_   |/  _____/
+ *  /  / \  \|  |  \  |/ ___\|  |/ / |    |  \_/ __ \  \/ /|   /   __  \
+ * /   \_/.  \  |  /  \  \___|    <  |    `   \  ___/\   / |   \  |__\  \
+ * \_____\ \_/____/|__|\___  >__|_ \/_______  /\___  >\_/  |___|\_____  /
+ *        \__>             \/     \/        \/     \/                 \/
+ *
+ *                                  www.optixx.org
+ *
+ *
+ *        Version:  1.0
+ *        Created:  07/21/2009 03:32:16 PM
+ *         Author:  david@optixx.org
+ *
+ * =====================================================================================
+ */
+
+#include <avr/io.h>
+#include <avr/interrupt.h>      
+#include <util/delay.h>         
+#include <stdlib.h>
+
+#include "config.h"
+#include "requests.h"           
+#include "sram.h"
+#include "info.h"
+#include "irq.h"
+
+extern uint32_t req_bank_size;
+
+
+void send_reset()
+{
+    info_P(PSTR("Reset SNES\n"));
+    cli();
+    snes_reset_on();
+    snes_reset_lo();
+    _delay_ms(2);
+    snes_reset_hi();
+    snes_reset_off();
+    sei();
+}
+
+void send_irq()
+{
+    snes_irq_on();
+    snes_irq_lo();
+    _delay_us(20);
+    snes_irq_hi();
+    snes_irq_off();
+}
+
+void set_rom_mode()
+{
+    if (req_bank_size == 0x8000) {
+        snes_lorom();
+        info_P(PSTR("Set SNES lowrom \n"));
+    } else {
+        snes_hirom();
+        info_P(PSTR("Set SNES hirom \n"));
+    }
+}

avr/usbload/command.h

@@ -0,0 +1,29 @@
+/*
+ * =====================================================================================
+ *
+ * ________        .__        __    ________               ____  ________
+ * \_____  \  __ __|__| ____ |  | __\______ \   _______  _/_   |/  _____/
+ *  /  / \  \|  |  \  |/ ___\|  |/ / |    |  \_/ __ \  \/ /|   /   __  \
+ * /   \_/.  \  |  /  \  \___|    <  |    `   \  ___/\   / |   \  |__\  \
+ * \_____\ \_/____/|__|\___  >__|_ \/_______  /\___  >\_/  |___|\_____  /
+ *        \__>             \/     \/        \/     \/                 \/
+ *
+ *                                  www.optixx.org
+ *
+ *
+ *        Version:  1.0
+ *        Created:  07/21/2009 03:32:16 PM
+ *         Author:  david@optixx.org
+ *
+ * =====================================================================================
+ */
+
+
+#ifndef __COMMAND_H__
+#define __COMMAND_H__
+
+void send_reset();
+void send_irq();
+void set_rom_mode();
+
+#endif

avr/usbload/config.h

@@ -29,6 +29,7 @@
 #define DEBUG_SRAM_RAW              16
 #define DEBUG_SREG                  32
 #define DEBUG_CRC                   64
+#define DEBUG_SHM                   128
 
 #define REQ_STATUS_IDLE             0x01
 #define REQ_STATUS_UPLOAD           0x02
@@ -42,6 +43,8 @@
 #define USB_CRC_CHECK               0x01
 
 #define TRANSFER_BUFFER_SIZE        0x200
-
+#define FORMAT_BUFFER_LEN           0x0FF
+#define HW_VERSION                  "2.6"
+#define SW_VERSION                  "1.0"
 
 #endif 

avr/usbload/crc.c

@@ -71,10 +71,12 @@ uint16_t crc_check_bulk_memory(uint32_t bottom_addr, uint32_t top_addr, uint32_t
     uint32_t addr = 0;
     uint8_t req_bank = 0;
     sram_bulk_read_start(bottom_addr);
+    debug_P(DEBUG_CRC, PSTR("crc_check_bulk_memory: bottom_addr=0x%08lx top_addr=0x%08lx\n"),
+        bottom_addr,top_addr);
     
     for (addr = bottom_addr; addr < top_addr; addr++) {
         if (addr && addr % bank_size == 0) {
-            debug(DEBUG_CRC,"crc_check_bulk_memory: bank=0x%02x addr=0x%08lx crc=0x%04x\n",
+            debug_P(DEBUG_CRC, PSTR("crc_check_bulk_memory: bank=0x%02x addr=0x%08lx crc=0x%04x\n"),
                 req_bank,addr,crc);
             req_bank++;
             crc = 0;
@@ -83,7 +85,7 @@ uint16_t crc_check_bulk_memory(uint32_t bottom_addr, uint32_t top_addr, uint32_t
         sram_bulk_read_next();
     }
     if (addr % 0x8000 == 0)
-        debug(DEBUG_CRC,"crc_check_bulk_memory: bank=0x%02x addr=0x%08lx crc=0x%04x\n",
+        debug_P(DEBUG_CRC, PSTR("crc_check_bulk_memory: bank=0x%02x addr=0x%08lx crc=0x%04x\n"),
             req_bank,addr,crc);
     sram_bulk_read_end();
     return crc;
@@ -91,31 +93,13 @@ uint16_t crc_check_bulk_memory(uint32_t bottom_addr, uint32_t top_addr, uint32_t
 
 
 
-void crc_check_memory(uint32_t bottom_addr,uint32_t top_addr,uint32_t bank_size,uint8_t *buffer)
-{
-    uint16_t crc = 0;
-    uint32_t addr;
-    uint8_t req_bank = 0;
-    for (addr = bottom_addr; addr < top_addr; addr += TRANSFER_BUFFER_SIZE) {
-        if (addr && addr % bank_size == 0) {
-            debug(DEBUG_CRC,"crc_check_memory: bank=0x%02x addr=0x%08lx crc=0x%04x\n",
-                req_bank,addr,crc);
-            req_bank++;
-            crc = 0;
-        }
-        sram_read_buffer(addr, buffer, TRANSFER_BUFFER_SIZE);
-        crc = do_crc_update(crc, buffer, TRANSFER_BUFFER_SIZE);
-    }
-}
-
-
 
 uint16_t crc_check_memory_range(uint32_t start_addr, uint32_t size,uint8_t *buffer)
 {
     uint16_t crc = 0;
     uint32_t addr;
     for (addr = start_addr; addr < start_addr + size; addr += TRANSFER_BUFFER_SIZE) {
-        sram_read_buffer(addr, buffer, TRANSFER_BUFFER_SIZE);
+        sram_bulk_copy_into_buffer(addr, buffer, TRANSFER_BUFFER_SIZE);
         crc = do_crc_update(crc, buffer, TRANSFER_BUFFER_SIZE);
     }
     return crc;

avr/usbload/crc.h

@@ -29,7 +29,6 @@
 uint16_t crc_xmodem_update(uint16_t crc, uint8_t data);
 uint16_t do_crc(uint8_t * data,uint16_t size);
 uint16_t do_crc_update(uint16_t crc,uint8_t * data,uint16_t size);
-void crc_check_memory(uint32_t bottom_addr,uint32_t top_addr,uint32_t bank_size,uint8_t *buffer);
 uint16_t crc_check_memory_range(uint32_t start_addr, uint32_t size,uint8_t *buffer);
 uint16_t crc_check_bulk_memory(uint32_t bottom_addr, uint32_t bank_size,uint32_t top_addr);
 

avr/usbload/debug.c

@@ -20,11 +20,11 @@
 
 #include <stdlib.h>
 #include <stdint.h>
+#include <avr/pgmspace.h>
 
 #include "debug.h"
 #include "uart.h"
-
-
+#include "config.h"
 
 extern FILE uart_stdout;
 
@@ -46,4 +46,23 @@ void debug(int level, char* format, ...) {
 }
 #endif 
 
+#ifndef NO_INFO
+    uint8_t buffer_debug[FORMAT_BUFFER_LEN];
+#endif
    
+#if defined(NO_DEBUG) && defined(__GNUC__)
+#else
+void debug_P(int level, PGM_P format, ...) {
+#ifdef NO_DEBUG
+
+#else
+    va_list args;
+    if (!(debug_level & level))
+        return;
+    strlcpy_P(buffer_debug,format,FORMAT_BUFFER_LEN);
+    va_start(args, format);
+    vprintf(buffer_debug, args);
+    va_end(args);
+#endif
+}
+#endif 

avr/usbload/debug.h

@@ -26,7 +26,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #include <stdarg.h>
-
+#include <avr/pgmspace.h>
 
 #if defined(NO_DEBUG) && defined(__GNUC__)
 /* gcc's cpp has extensions; it allows for macros with a variable number of
@@ -39,5 +39,17 @@ void debug(int level, char *format, ...);
 #endif
 
 
+
+#if defined(NO_DEBUG) && defined(__GNUC__)
+/* gcc's cpp has extensions; it allows for macros with a variable number of
+   arguments. We use this extension here to preprocess pmesg away. */
+#define debug_P(level, format, args...) ((void)0)
+#else
+void debug_P(int level, PGM_P format, ...);
+/* print a message, if it is considered significant enough.
+      Adapted from [K&R2], p. 174 */
+#endif
+
+
 #endif /* DEBUG_H */
         

avr/usbload/dump.c

@@ -47,21 +47,21 @@ void dump_packet(uint32_t addr, uint32_t len, uint8_t * packet)
             continue;
         }
         if (clear) {
-            info("*\n");
+            info_P(PSTR("*\n"));
             clear = 0;
         }
-        info("%08lx:", addr + i);
+        info_P(PSTR("%08lx:"), addr + i);
         for (j = 0; j < 16; j++) {
-            info(" %02x", packet[i + j]);
+            info_P(PSTR(" %02x"), packet[i + j]);
         }
-        info(" |");
+        info_P(PSTR(" |"));
         for (j = 0; j < 16; j++) {
             if (packet[i + j] >= 33 && packet[i + j] <= 126)
-                info("%c", packet[i + j]);
+                info_P(PSTR("%c"), packet[i + j]);
             else
-                info(".");
+                info_P(PSTR("."));
         }
-        info("|\n");
+        info_P(PSTR("|\n"));
     }
 }
 
@@ -72,11 +72,11 @@ void dump_memory(uint32_t bottom_addr, uint32_t top_addr)
     sram_bulk_read_start(bottom_addr);
     for ( addr = bottom_addr; addr < top_addr; addr++) {
         if (addr%0x10 == 0)
-            info("\n%08lx:", addr);
+            info_P(PSTR("\n%08lx:"), addr);
         byte = sram_bulk_read();
         sram_bulk_read_next();
-        info(" %02x", byte);
+        info_P(PSTR(" %02x"), byte);
     }
-    info("\n");
+    info_P(PSTR("\n"));
     sram_bulk_read_end();
 }

avr/usbload/dump.h

@@ -31,4 +31,4 @@ void dump_memory(uint32_t bottom_addr, uint32_t top_addr);
 void dump_packet(uint32_t addr,uint32_t len,uint8_t *packet);
 
 #endif 
-        
+

avr/usbload/fat.c

@@ -1,192 +0,0 @@
-#include "fat.h"
-
-uint8_t cluster_size;
-uint16_t fat_offset;
-uint16_t cluster_offset;
-uint16_t volume_boot_record_addr;
-
-void fat_init(uint8_t * Buffer)
-{
-    struct BootSec *bootp;
-    mmc_read_sector(MASTER_BOOT_RECORD, Buffer);
-    if (Buffer[510] == 0x55 && Buffer[511] == 0xAA) {
-        FAT_DEBUG("MBR Signatur found!\r\n");
-    }
-
-    else {
-        FAT_DEBUG("MBR Signatur not found!\r\n");
-        while (1);
-    }
-    volume_boot_record_addr = Buffer[VBR_ADDR] + (Buffer[VBR_ADDR + 1] << 8);
-    mmc_read_sector(volume_boot_record_addr, Buffer);
-    if (Buffer[510] == 0x55 && Buffer[511] == 0xAA) {
-        FAT_DEBUG("VBR Signatur found!\r\n");
-    }
-
-    else {
-        FAT_DEBUG("VBR Signatur not found!\r\n");
-        volume_boot_record_addr = MASTER_BOOT_RECORD;
-        mmc_read_sector(MASTER_BOOT_RECORD, Buffer);
-    }
-    bootp = (struct BootSec *) Buffer;
-    cluster_size = bootp->BPB_SecPerClus;
-    fat_offset = bootp->BPB_RsvdSecCnt;
-    cluster_offset = ((bootp->BPB_BytesPerSec * 32) / BlockSize);
-    cluster_offset += fat_root_dir_addr(Buffer);
-}
-
-uint16_t fat_root_dir_addr(uint8_t * Buffer)
-{
-    struct BootSec *bootp;
-    uint16_t FirstRootDirSecNum;
-
-
-    mmc_read_sector(volume_boot_record_addr, Buffer);
-    bootp = (struct BootSec *) Buffer;
-
-
-    FirstRootDirSecNum = (bootp->BPB_RsvdSecCnt +
-                          (bootp->BPB_NumFATs * bootp->BPB_FATSz16));
-    FirstRootDirSecNum += volume_boot_record_addr;
-    return (FirstRootDirSecNum);
-}
-
-
-uint16_t fat_read_dir_ent(uint16_t dir_cluster,
-                          uint8_t Entry_Count,
-                          uint32_t * Size,
-                          uint8_t * Dir_Attrib, uint8_t * Buffer)
-{
-    uint8_t *pointer;
-    uint16_t TMP_Entry_Count = 0;
-    uint32_t Block = 0;
-    struct DirEntry *dir;
-    uint16_t blk;
-    uint16_t a;
-    uint8_t b;
-    pointer = Buffer;
-    if (dir_cluster == 0) {
-        Block = fat_root_dir_addr(Buffer);
-    }
-
-    else {
-        fat_load(dir_cluster, &Block, Buffer);
-        Block = ((Block - 2) * cluster_size) + cluster_offset;
-    }
-
-
-    for (blk = Block;; blk++) {
-        mmc_read_sector(blk, Buffer);
-        for (a = 0; a < BlockSize; a = a + 32) {
-            dir = (struct DirEntry *) &Buffer[a];
-            if (dir->DIR_Name[0] == 0) {
-                return (0xFFFF);
-            }
-
-            if ((dir->DIR_Attr != ATTR_LONG_NAME) &&
-                (dir->DIR_Name[0] != DIR_ENTRY_IS_FREE)) {
-
-
-                if (TMP_Entry_Count == Entry_Count) {
-
-
-                    for (b = 0; b < 11; b++) {
-                        if (dir->DIR_Name[b] != SPACE) {
-                            if (b == 8) {
-                                *pointer++ = '.';
-                            }
-                            *pointer++ = dir->DIR_Name[b];
-                        }
-                    }
-                    *pointer++ = '\0';
-                    *Dir_Attrib = dir->DIR_Attr;
-
-
-                    *Size = dir->DIR_FileSize;
-
-
-                    dir_cluster = dir->DIR_FstClusLO;
-
-
-                    return (dir_cluster);
-                }
-                TMP_Entry_Count++;
-            }
-        }
-    }
-    return (0xFFFF);
-}
-
-void fat_load(uint16_t Cluster, uint32_t * Block, uint8_t * TMP_Buffer)
-{
-    uint16_t FAT_Block_Store = 0;
-    uint16_t FAT_Byte_Addresse;
-    uint16_t FAT_Block_Addresse;
-    uint16_t a;
-
-    for (a = 0;; a++) {
-        if (a == *Block) {
-            *Block = (0x0000FFFF & Cluster);
-            return;
-        }
-        if (Cluster == 0xFFFF) {
-            break;
-        }
-
-        FAT_Byte_Addresse = (Cluster * 2) % BlockSize;
-
-
-        FAT_Block_Addresse =
-            ((Cluster * 2) / BlockSize) + volume_boot_record_addr + fat_offset;
-
-        if (FAT_Block_Addresse != FAT_Block_Store) {
-            FAT_Block_Store = FAT_Block_Addresse;
-            mmc_read_sector(FAT_Block_Addresse, TMP_Buffer);
-        }
-        Cluster =
-            (TMP_Buffer[FAT_Byte_Addresse + 1] << 8) +
-            TMP_Buffer[FAT_Byte_Addresse];
-    }
-    return;
-}
-
-void fat_read_file(uint16_t Cluster, uint8_t * Buffer, uint32_t BlockCount)
-{
-
-    uint32_t Block = (BlockCount / cluster_size);
-    fat_load(Cluster, &Block, Buffer);
-    Block = ((Block - 2) * cluster_size) + cluster_offset;
-    Block += (BlockCount % cluster_size);
-    mmc_read_sector(Block, Buffer);
-    return;
-}
-
-void fat_write_file(uint16_t cluster, uint8_t * buffer, uint32_t blockCount)
-{
-    uint8_t tmp_buffer[513];
-    uint32_t block = (blockCount / cluster_size);
-    fat_load(cluster, &block, tmp_buffer);
-    block = ((block - 2) * cluster_size) + cluster_offset;
-    block += (blockCount % cluster_size);
-    mmc_write_sector(block, buffer);
-    return;
-}
-
-uint8_t fat_search_file(uint8_t * File_Name,
-                        uint16_t * Cluster,
-                        uint32_t * Size, uint8_t * Dir_Attrib, uint8_t * Buffer)
-{
-    uint16_t Dir_Cluster_Store = *Cluster;
-    uint8_t a;
-    for (a = 0; a < 100; a++) {
-        *Cluster =
-            fat_read_dir_ent(Dir_Cluster_Store, a, Size, Dir_Attrib, Buffer);
-        if (*Cluster == 0xffff) {
-            return (0);
-        }
-        if (strcasecmp((char *) File_Name, (char *) Buffer) == 0) {
-            return (1);
-        }
-    }
-    return (2);
-}

avr/usbload/fat.h

@@ -1,103 +0,0 @@
-/*
- */
-
-#ifndef _FAT_H_
-#define _FAT_H_
-#include <string.h>
-#include "mmc.h"
-#include "uart.h"
-
-#define FAT_DEBUG	uart_puts
-
-
-
-extern uint16_t fat_root_dir_addr(uint8_t *);
-extern uint16_t fat_read_dir_ent(uint16_t, uint8_t,
-                                 uint32_t *, uint8_t *, uint8_t *);
-extern void fat_load(uint16_t, uint32_t *, uint8_t *);
-extern void fat_read_file(uint16_t, uint8_t *, uint32_t);
-extern void fat_write_file(uint16_t, uint8_t *, uint32_t);
-extern void fat_init(uint8_t * Buffer);
-extern uint8_t fat_search_file(uint8_t *, uint16_t *,
-                               uint32_t *, uint8_t *, uint8_t *);
-
-
-#define BlockSize			512
-
-
-#define MASTER_BOOT_RECORD	0
-
-
-#define VBR_ADDR 			0x1C6
-
-
-#define SPACE 				0x20
-#define DIR_ENTRY_IS_FREE   0xE5
-#define FIRST_LONG_ENTRY	0x01
-#define SECOND_LONG_ENTRY	0x42
-
-
-#define ATTR_LONG_NAME		0x0F
-#define ATTR_READ_ONLY		0x01
-#define ATTR_HIDDEN			0x02
-#define ATTR_SYSTEM			0x04
-#define ATTR_VOLUME_ID		0x08
-#define ATTR_DIRECTORY		0x10
-#define ATTR_ARCHIVE		0x20
-struct BootSec {
-    uint8_t BS_jmpBoot[3];
-    uint8_t BS_OEMName[8];
-    uint16_t BPB_BytesPerSec;
-    uint8_t BPB_SecPerClus;
-    uint16_t BPB_RsvdSecCnt;
-    uint8_t BPB_NumFATs;
-    uint16_t BPB_RootEntCnt;
-    uint16_t BPB_TotSec16;
-    uint8_t BPB_Media;
-    uint16_t BPB_FATSz16;
-    uint16_t BPB_SecPerTrk;
-    uint16_t BPB_NumHeads;
-    uint32_t BPB_HiddSec;
-    uint32_t BPB_TotSec32;
-};
-
-
-#define BS_DRVNUM			36
-#define BS_RESERVED1		37
-#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 BPB_RESERVED		52
-
-#define FAT32_BS_DRVNUM		64
-#define FAT32_BS_RESERVED1	65
-#define FAT32_BS_BOOTSIG	66
-#define FAT32_BS_VOLID		67
-#define FAT32_BS_VOLLAB		71
-#define FAT32_BS_FILSYSTYPE	82
-
-struct DirEntry {
-    uint8_t DIR_Name[11];
-    uint8_t DIR_Attr;
-    uint8_t DIR_NTRes;
-    uint8_t DIR_CrtTimeTenth;
-    uint16_t DIR_CrtTime;
-    uint16_t DIR_CrtDate;
-    uint16_t DIR_LastAccDate;
-    uint16_t DIR_FstClusHI;
-    uint16_t DIR_WrtTime;
-    uint16_t DIR_WrtDate;
-    uint16_t DIR_FstClusLO;
-    uint32_t DIR_FileSize;
-};
-
-#endif

avr/usbload/info.c

@@ -20,9 +20,12 @@
 
 #include <stdlib.h>
 #include <stdint.h>
+#include <avr/pgmspace.h>
 
 #include "info.h"
 #include "uart.h"
+#include "config.h"
+
 
 
 
@@ -46,4 +49,26 @@ void info(char* format, ...) {
 }
 #endif 
 
+
+#ifndef NO_INFO
+    uint8_t buffer_info[FORMAT_BUFFER_LEN];
+#endif
+
+#if defined(NO_INFO) && defined(__GNUC__)
+
+#define info(format, args...) ((void)0)
+
+#else
+void info_P(PGM_P format, ...) {
+#ifdef NO_INFO
+
+#else
+    strlcpy_P(buffer_info,format,FORMAT_BUFFER_LEN);
+    va_list args;
+    va_start(args, format);
+    vprintf(buffer_info, args);
+    va_end(args);
+#endif
+}
+#endif
    

avr/usbload/info.h

@@ -26,7 +26,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #include <stdarg.h>
-
+#include <avr/pgmspace.h>
 
 #if defined(NO_INFO) && defined(__GNUC__)
 /* gcc's cpp has extensions; it allows for macros with a variable number of
@@ -39,4 +39,15 @@ void info(char *format, ...);
 #endif
 
 
+#if defined(NO_INFO) && defined(__GNUC__)
+/* gcc's cpp has extensions; it allows for macros with a variable number of
+   arguments. We use this extension here to preprocess pmesg away. */
+#define info_P(format, args...) ((void)0)
+#else
+void info_P(PGM_P format, ...);
+/* print a message, if it is considered significant enough.
+      Adapted from [K&R2], p. 174 */
+#endif
+
+
 #endif 

avr/usbload/irq.c

@@ -0,0 +1,72 @@
+/*
+ * =====================================================================================
+ *
+ * ________        .__        __    ________               ____  ________
+ * \_____  \  __ __|__| ____ |  | __\______ \   _______  _/_   |/  _____/
+ *  /  / \  \|  |  \  |/ ___\|  |/ / |    |  \_/ __ \  \/ /|   /   __  \
+ * /   \_/.  \  |  /  \  \___|    <  |    `   \  ___/\   / |   \  |__\  \
+ * \_____\ \_/____/|__|\___  >__|_ \/_______  /\___  >\_/  |___|\_____  /
+ *        \__>             \/     \/        \/     \/                 \/
+ *
+ *                                  www.optixx.org
+ *
+ *
+ *        Version:  1.0
+ *        Created:  07/21/2009 03:32:16 PM
+ *         Author:  david@optixx.org
+ *
+ * =====================================================================================
+ */
+
+
+
+
+#include <stdint.h>
+#include <stdio.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>      /* for sei() */
+#include <avr/wdt.h>
+
+
+#include "usbdrv.h"
+#include "oddebug.h"            /* This is also an example for using debug
+                                 * macros */
+#include "debug.h" 
+#include "info.h"
+#include "sram.h"
+ 
+  
+void (*jump_to_app) (void) = 0x0000;
+  
+void irq_init(){
+    cli();
+    PCMSK3 |=(1<<PCINT27);
+    PCICR  |= (1<<PCIE3);
+    sei();
+} 
+
+void irq_stop(){
+    cli();
+    PCMSK3 &=~(1<<PCINT27);
+    sei();
+} 
+
+void leave_application(void)
+{
+    cli();
+    usbDeviceDisconnect();
+    wdt_enable(WDTO_15MS);
+    while (1);
+
+}
+
+ 
+ISR (SIG_PIN_CHANGE3)
+{
+    if (snes_reset_test()){
+        info_P(PSTR("Catch SNES reset button\n"));
+        info_P(PSTR("Set watchdog...\n"));
+        leave_application();
+    }    
+}
+ 

avr/usbload/irq.h

@@ -0,0 +1,25 @@
+/*
+ * =====================================================================================
+ *
+ * ________        .__        __    ________               ____  ________
+ * \_____  \  __ __|__| ____ |  | __\______ \   _______  _/_   |/  _____/
+ *  /  / \  \|  |  \  |/ ___\|  |/ / |    |  \_/ __ \  \/ /|   /   __  \
+ * /   \_/.  \  |  /  \  \___|    <  |    `   \  ___/\   / |   \  |__\  \
+ * \_____\ \_/____/|__|\___  >__|_ \/_______  /\___  >\_/  |___|\_____  /
+ *        \__>             \/     \/        \/     \/                 \/
+ *
+ *                                  www.optixx.org
+ *
+ *
+ *        Version:  1.0
+ *        Created:  07/21/2009 03:32:16 PM
+ *         Author:  david@optixx.org
+ *
+ * =====================================================================================
+ */
+
+
+#ifndef __IRQ_H__
+#define __IRQ_H__
+
+#endif

avr/usbload/loader.c

@@ -1,6 +1,6 @@
 /*
 File: main.smc 
-Time: Thu, 06 Aug 2009 08:37:50
+Time: Thu, 06 Aug 2009 20:01:38
 */
 #include <avr/pgmspace.h>       
 #include <loader.h>       

avr/usbload/loader.h

@@ -6,4 +6,6 @@
 #define ROM_HUFFMAN_SIZE 0
 #define ROM_RLE_SIZE     31091
 
+void irq_init();
+
 #endif

avr/usbload/main.c

@@ -21,16 +21,16 @@
 
 
 #include <avr/io.h>
-#include <avr/interrupt.h>      /* for sei() */
-#include <util/delay.h>         /* for _delay_ms() */
+#include <avr/interrupt.h>      
+#include <util/delay.h>         
 #include <stdlib.h>
-#include <avr/pgmspace.h>       /* required by usbdrv.h */
+#include <avr/pgmspace.h>       
 #include <avr/eeprom.h>
 
 #include "usbdrv.h"
-#include "oddebug.h"            /* This is also an example for using debug macros */
+#include "oddebug.h"            
 #include "config.h"
-#include "requests.h"           /* The custom request numbers we use */
+#include "requests.h"           
 #include "uart.h"
 #include "sram.h"
 #include "debug.h"
@@ -42,16 +42,16 @@
 #include "watchdog.h"
 #include "rle.h"
 #include "loader.h"
+#include "command.h"
 #include "shared_memory.h"
-#include "mmc.h"
-#include "fat.h"
+#include "testing.h"
 
 
 
 extern const char _rom[] PROGMEM;
 extern FILE uart_stdout;
 
-uint8_t debug_level = (DEBUG | DEBUG_USB | DEBUG_CRC);
+uint8_t debug_level = (DEBUG | DEBUG_USB | DEBUG_CRC | DEBUG_SHM);
 
 uint8_t read_buffer[TRANSFER_BUFFER_SIZE];
 uint32_t req_addr = 0;
@@ -60,6 +60,8 @@ uint32_t req_size;
 uint8_t req_bank;
 uint32_t req_bank_size;
 uint16_t req_bank_cnt;
+uint8_t req_percent;
+uint8_t req_percent_last;
 uint8_t req_state = REQ_STATUS_IDLE;
 uint8_t rx_remaining = 0;
 uint8_t tx_remaining = 0;
@@ -77,91 +79,24 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
 
     usbRequest_t *rq = (void *) data;
     uint8_t ret_len = 0;
-    /*
-     * -------------------------------------------------------------------------
-     */
-    if (rq->bRequest == USB_UPLOAD_INIT) {
 
-        if (req_state != REQ_STATUS_IDLE) {
-            debug(DEBUG_USB,
-                  "USB_UPLOAD_INIT: ERROR state is not REQ_STATUS_IDLE\n");
-            return 0;
-        }
+    if (rq->bRequest == USB_BULK_UPLOAD_INIT) {
 
         req_bank = 0;
         rx_remaining = 0;
-        req_bank_size = (uint32_t) 1 << rq->wValue.word;
-        sync_errors = 0;
-        crc = 0;
-        debug(DEBUG_USB, "USB_UPLOAD_INIT: bank_size=0x%08lx\n", req_bank_size);
-
-        /*
-         * -------------------------------------------------------------------------
-         */
-    } else if (rq->bRequest == USB_UPLOAD_ADDR) {
-
-        req_state = REQ_STATUS_UPLOAD;
-        req_addr = rq->wValue.word;
-        req_addr = req_addr << 16;
-        req_addr = req_addr | rq->wIndex.word;
-        if (rx_remaining) {
-            sync_errors++;
-            debug
-                (DEBUG_USB,
-                 "USB_UPLOAD_ADDR: Out of sync addr=0x%lx remain=%i packet=%i sync_error=%i\n",
-                 req_addr, rx_remaining, rq->wLength.word, sync_errors);
-            ret_len = 0;
-        }
-        rx_remaining = rq->wLength.word;
-        ret_len = USB_MAX_TRANS;
-
-
-        if (req_addr && (req_addr % 0x1000) == 0) {
-            debug(DEBUG_USB,
-                  "USB_UPLOAD_ADDR: bank=0x%02x addr=0x%08lx crc=%04x\n",
-                  req_bank, req_addr, crc_check_bulk_memory(req_addr - 0x1000,
-                                                            req_addr,
-                                                            req_bank_size));
-
-        }
-        if (req_addr && req_addr % req_bank_size == 0) {
-            debug(DEBUG_USB, "USB_UPLOAD_ADDR: req_bank=0x%02x addr=0x%08lx\n",
-                  req_bank, req_addr);
-
-            req_bank++;
-            // shared_memory_put(SHARED_MEM_CMD_UPLOAD_PROGESS,req_bank);
-        }
-        ret_len = USB_MAX_TRANS;
-        /*
-         * -------------------------------------------------------------------------
-         */
-    } else if (rq->bRequest == USB_DOWNLOAD_INIT) {
-        debug(DEBUG_USB, "USB_DOWNLOAD_INIT\n");
-
-        /*
-         * -------------------------------------------------------------------------
-         */
-    } else if (rq->bRequest == USB_DOWNLOAD_ADDR) {
-        debug(DEBUG_USB, "USB_DOWNLOAD_ADDR\n");
-        /*
-         * -------------------------------------------------------------------------
-         */
-    } else if (rq->bRequest == USB_BULK_UPLOAD_INIT) {
-
-        req_bank = 0;
-        rx_remaining = 0;
-        debug(DEBUG_USB, "USB_BULK_UPLOAD_INIT: %i %i\n", rq->wValue.word,
+        debug_P(DEBUG_USB, PSTR("USB_BULK_UPLOAD_INIT: %i %i\n"), rq->wValue.word,
               rq->wIndex.word);
         req_bank_size = (uint32_t) (1L << rq->wValue.word);
         req_bank_cnt = rq->wIndex.word;
         req_addr_end = (uint32_t) req_bank_size *req_bank_cnt;
-
+        req_percent = 0;
+        req_percent_last = 0;
         sync_errors = 0;
-        debug(DEBUG_USB,
-              "USB_BULK_UPLOAD_INIT: bank_size=0x%08lx bank_cnt=0x%x end_addr=0x%08lx\n",
+        debug_P(DEBUG_USB,
+              PSTR("USB_BULK_UPLOAD_INIT: bank_size=0x%08lx bank_cnt=0x%x end_addr=0x%08lx\n"),
               req_bank_size, req_bank_cnt, req_addr_end);
 
-        shared_memory_put(SHARED_MEM_CMD_BANK_COUNT, req_bank_cnt);
+        shared_memory_write(SHARED_MEM_TX_CMD_BANK_COUNT, req_bank_cnt);
         if (req_addr == 0x000000) {
             timer_start();
         }
@@ -176,18 +111,19 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
         req_addr = req_addr | rq->wIndex.word;
         rx_remaining = rq->wLength.word;
 
+
         if (req_addr && req_addr % req_bank_size == 0) {
 #ifdef FLT_DEBUG
-            debug(DEBUG_USB,
-                  "USB_BULK_UPLOAD_ADDR: req_bank=0x%02x addr=0x%08lx time=%.4f\n",
+            debug_P(DEBUG_USB,
+                  PSTR("USB_BULK_UPLOAD_ADDR: req_bank=0x%02x addr=0x%08lx time=%.4f\n"),
                   req_bank, req_addr, timer_stop());
 #else
-            debug(DEBUG_USB,
-                  "USB_BULK_UPLOAD_ADDR: req_bank=0x%02x addr=0x%08lx time=%i\n",
+            debug_P(DEBUG_USB,
+                  PSTR("USB_BULK_UPLOAD_ADDR: req_bank=0x%02x addr=0x%08lx time=%i\n"),
                   req_bank, req_addr, timer_stop_int());
 #endif
             req_bank++;
-            shared_memory_put(SHARED_MEM_CMD_UPLOAD_PROGESS, req_bank);
+            shared_memory_write(SHARED_MEM_TX_CMD_UPLOAD_PROGESS, req_bank);
             sram_bulk_write_start(req_addr);
             timer_start();
 
@@ -206,10 +142,20 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
         req_addr = req_addr << 16;
         req_addr = req_addr | rq->wIndex.word;
         rx_remaining = rq->wLength.word;
+
+        req_percent = (uint32_t)( 100 * req_addr )  / req_addr_end;
+        if (req_percent!=req_percent_last){
+            //debug_P(DEBUG_USB,
+            //    PSTR("USB_BULK_UPLOAD_ADDR: precent=%i\n",  req_percent);
+            shared_memory_write(SHARED_MEM_TX_CMD_UPLOAD_PROGESS, req_percent);
+            sram_bulk_write_start(req_addr);
+        }
+        req_percent_last = req_percent;
+
 #if 0
         if (req_addr && (req_addr % 0x1000) == 0) {
-            debug(DEBUG_USB,
-                  "USB_BULK_UPLOAD_NEXT: bank=0x%02x addr=0x%08lx crc=%04x\n",
+            debug_P(DEBUG_USB,
+                  PSTR("USB_BULK_UPLOAD_NEXT: bank=0x%02x addr=0x%08lx crc=%04x\n",
                   req_bank, req_addr, crc_check_bulk_memory(req_addr - 0x1000,
                                                             req_addr,
                                                             req_bank_size));
@@ -217,19 +163,29 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
         }
         sram_bulk_write_start(req_addr);
 #endif
+
+#if SHM_SCRATCHPAD
+        if (!shared_memory_scratchpad_region_save_helper(req_addr)){
+            debug_P(DEBUG_USB,
+                  PSTR("USB_BULK_UPLOAD_NEXT: scratchpad_region_save_helper was dirty\n"));
+            sram_bulk_write_start(req_addr);
+        }
+#endif
+
+
         if (req_addr && (req_addr % req_bank_size) == 0) {
 #ifdef FLT_DEBUG
-            debug(DEBUG_USB,
-                  "USB_BULK_UPLOAD_NEXT: req_bank=0x%02x addr=0x%08lx time=%.4f\n",
+            debug_P(DEBUG_USB,
+                  PSTR("USB_BULK_UPLOAD_NEXT: req_bank=0x%02x addr=0x%08lx time=%.4f\n"),
                   req_bank, req_addr, timer_stop());
 #else
-            debug(DEBUG_USB,
-                  "USB_BULK_UPLOAD_NEXT: req_bank=0x%02x addr=0x%08lx time=%i\n",
+            debug_P(DEBUG_USB,
+                  PSTR("USB_BULK_UPLOAD_NEXT: req_bank=0x%02x addr=0x%08lx time=%i\n"),
                   req_bank, req_addr, timer_stop_int());
 #endif
             req_bank++;
             timer_start();
-            shared_memory_put(SHARED_MEM_CMD_BANK_CURRENT, req_bank);
+            shared_memory_write(SHARED_MEM_TX_CMD_BANK_CURRENT, req_bank);
             sram_bulk_write_start(req_addr);
 
         }
@@ -239,14 +195,14 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
          */
     } else if (rq->bRequest == USB_BULK_UPLOAD_END) {
         if (req_state != REQ_STATUS_BULK_UPLOAD) {
-            debug(DEBUG_USB,
-                  "USB_BULK_UPLOAD_END: ERROR state is not REQ_STATUS_BULK_UPLOAD\n");
+            debug_P(DEBUG_USB,
+                  PSTR("USB_BULK_UPLOAD_END: ERROR state is not REQ_STATUS_BULK_UPLOAD\n"));
             return 0;
         }
-        debug(DEBUG_USB, "USB_BULK_UPLOAD_END:\n");
+        debug_P(DEBUG_USB, PSTR("USB_BULK_UPLOAD_END:\n"));
         req_state = REQ_STATUS_IDLE;
         sram_bulk_write_end();
-        shared_memory_put(SHARED_MEM_CMD_UPLOAD_END, 0);
+        shared_memory_write(SHARED_MEM_TX_CMD_UPLOAD_END, 0);
         ret_len = 0;
 
         /*
@@ -256,7 +212,7 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
         req_addr = rq->wValue.word;
         req_addr = req_addr << 16;
         req_addr = req_addr | rq->wIndex.word;
-        debug(DEBUG_USB, "USB_CRC: addr=0x%08lx \n", req_addr);
+        debug_P(DEBUG_USB, PSTR("USB_CRC: addr=0x%08lx \n"), req_addr);
         crc_check_bulk_memory(0x000000, req_addr, req_bank_size);
         ret_len = 0;
         /*
@@ -264,20 +220,20 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
          */
     } else if (rq->bRequest == USB_MODE_SNES) {
         req_state = REQ_STATUS_SNES;
-        debug(DEBUG_USB, "USB_MODE_SNES:\n");
+        debug_P(DEBUG_USB, PSTR("USB_MODE_SNES:\n"));
         ret_len = 0;
         /*
          * -------------------------------------------------------------------------
          */
     } else if (rq->bRequest == USB_MODE_AVR) {
         req_state = REQ_STATUS_AVR;
-        debug(DEBUG_USB, "USB_MODE_AVR:\n");
+        debug_P(DEBUG_USB, PSTR("USB_MODE_AVR:\n"));
         ret_len = 0;
         /*
          * -------------------------------------------------------------------------
          */
     } else if (rq->bRequest == USB_AVR_RESET) {
-        debug(DEBUG_USB, "USB_AVR_RESET:\n");
+        debug_P(DEBUG_USB, PSTR("USB_AVR_RESET:\n"));
         soft_reset();
         ret_len = 0;
         /*
@@ -289,12 +245,12 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
         req_addr = rq->wValue.word;
         req_addr = req_addr << 16;
         req_addr = req_addr | rq->wIndex.word;
-        debug(DEBUG_USB, "USB_CRC_ADDR: addr=0x%lx size=%i\n", req_addr,
+        debug_P(DEBUG_USB, PSTR("USB_CRC_ADDR: addr=0x%lx size=%i\n"), req_addr,
               rq->wLength.word);
         req_size = rq->wLength.word;
         req_size = req_size << 2;
         tx_remaining = 2;
-        debug(DEBUG_USB, "USB_CRC_ADDR: addr=0x%lx size=%li\n", req_addr,
+        debug_P(DEBUG_USB, PSTR("USB_CRC_ADDR: addr=0x%lx size=%li\n"), req_addr,
               req_size);
 
         crc = crc_check_memory_range(req_addr, req_size, read_buffer);
@@ -312,238 +268,76 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
 /*
  * ------------------------------------------------------------------------- 
  */
-#define ENABLE_TEST
-#ifdef ENABLE_TEST
- 
- 
-uint8_t buffer[512];
- 
-void test_sdcard(){
-	uint16_t 	fat_cluster = 0;
-    uint8_t 	fat_attrib = 0;
-    uint32_t 	fat_size = 0;
-    uint32_t 	rom_addr = 0;
-    uint8_t 	bank_cnt = 0;
- 	uint16_t 	crc = 0;
-	uint16_t 	block_cnt;
-	uint16_t    clustervar;
-	uint8_t     dir_attrib = 0;
-	uint32_t    file_size = 0;
-    uint8_t 	i = 0;
-    
-    #define FILENAME	"mrdo.smc"   //failed
-    #define ROMSIZE      2             // 4 == 4mbit == 512kb
-    #define BUFFER_SIZE 512
-    #define BLOCKS 		(ROMSIZE << 8)
-    
-    while ( mmc_init() !=0) {
-		info("No sdcard...\n");
-    }
-    info("MMC Init done\n");
-    fat_init(read_buffer);
-    info("FAT Init done.\n");
-    
-    
-	info("\r\nDirectory\r\n");
-	for (i = 1;i < 240;i++){
-	    clustervar = fat_read_dir_ent(0,i,&file_size,&dir_attrib,buffer);
-	    if (clustervar == 0xffff){
-				break;
-		}
-		info("Cluster = %4x DirA = %2x FileName = %s size=%li\n",clustervar,dir_attrib,buffer,file_size);
-	}
-    
-    info("Look for %s\n",FILENAME);
-
-    if (fat_search_file((uint8_t*)FILENAME,
-						&fat_cluster,
-						&fat_size,
-						&fat_attrib,
-						read_buffer) == 1) {
-	   
-
-        for (block_cnt=0; block_cnt<BLOCKS; block_cnt++) {
-        	fat_read_file (fat_cluster,read_buffer,block_cnt);
-			
-			if (block_cnt && block_cnt % 64 == 0){
-				printf("Write Ram Bank: 0x%x Addr: 0x%lx Block: %x CRC: %x\n",bank_cnt,rom_addr,block_cnt,crc);
-				bank_cnt++;
-				crc = 0;
-			}
-        }
-		printf("Write Ram Bank: 0x%x Addr: 0x%lx Block: %x CRC: %x\n",bank_cnt,rom_addr,block_cnt,crc);
-		printf("Done\n");
-	}
-	
-}
-
-
-void test_read_write()
-{
-
-    uint8_t i;
-    uint32_t addr;
-    avr_bus_active();
-    addr = 0x000000;
-    i = 1;
-    while (addr++ <= 0x0000ff) {
-        sram_write(addr, i++);
-    }
-    addr = 0x000000;
-    while (addr++ <= 0x0000ff) {
-        info("read addr=0x%08lx %x\n", addr, sram_read(addr));
-    }
-}
-
-
-
-void test_bulk_read_write()
-{
-
-    uint8_t i;
-    uint32_t addr;
-    avr_bus_active();
-    addr = 0x000000;
-    i = 0;
-    sram_bulk_write_start(addr);
-    while (addr++ <= 0x8000) {
-        sram_bulk_write(i++);
-        sram_bulk_write_next();
-    }
-    sram_bulk_write_end();
-
-    addr = 0x000000;
-    sram_bulk_read_start(addr);
-    while (addr <= 0x8000) {
-        info("addr=0x%08lx %x\n", addr, sram_bulk_read());
-        sram_bulk_read_next();
-        addr++;
-    }
-    sram_bulk_read_end();
-}
-
-
-void test_non_zero_memory(uint32_t bottom_addr, uint32_t top_addr)
-{
-    uint32_t addr = 0;
-    uint8_t c;
-    sram_bulk_read_start(bottom_addr);
-    for (addr = bottom_addr; addr < top_addr; addr++) {
-        c = sram_bulk_read();
-        if (c != 0xff)
-            info("addr=0x%08lx c=0x%x\n", addr, c);
-        sram_bulk_read_next();
-    }
-    sram_bulk_read_end();
-}
-
-
-
-void test_crc()
-{
-    info("test_crc: clear\n");
-    avr_bus_active();
-    sram_bulk_set(0x000000, 0x10000, 0xff);
-    info("test_crc: crc\n");
-    crc_check_bulk_memory(0x000000, 0x10000, 0x8000);
-    info("test_crc: check\n");
-    test_non_zero_memory(0x000000, 0x10000);
-}
-#endif
-
-void send_reset()
-{
-    info("Reset Snes\n");
-    snes_reset_on();
-    snes_reset_lo();
-    _delay_ms(2);
-    snes_reset_hi();
-    snes_reset_off();
-}
-
-void send_irq()
-{
-    snes_irq_on();
-    snes_irq_lo();
-    _delay_us(20);
-    snes_irq_hi();
-    snes_irq_off();
-}
-
-void set_rom_mode()
-{
-    if (req_bank_size == 0x8000) {
-        snes_lorom();
-        info("Set Snes lowrom \n");
-    } else {
-        snes_hirom();
-        info("Set Snes hirom \n");
-    }
-}
 
 
 void usb_connect()
 {
     uint8_t i = 0;
-    info("USB init\n");
+    info_P(PSTR("USB init\n"));
     usbDeviceDisconnect();      /* enforce re-enumeration, do this while */
     cli();
-    info("USB disconnect\n");
+    info_P(PSTR("USB disconnect\n"));
     i = 10;
     while (--i) {               /* fake USB disconnect for > 250 ms */
         led_on();
-        _delay_ms(35);
+        _delay_ms(15);
         led_off();
-        _delay_ms(65);
+        _delay_ms(35);
     }
     led_on();
     usbDeviceConnect();
-    info("USB connect\n");
+    info_P(PSTR("USB connect\n"));
 }
 
 
 void boot_startup_rom()
 {
-
-
-    info("Activate AVR bus\n");
+    info_P(PSTR("Boot startup rom\n"));
+    info_P(PSTR("Activate AVR bus\n"));
     avr_bus_active();
-
-
-    info("IRQ off\n");
+    info_P(PSTR("IRQ off\n"));
     snes_irq_lo();
     snes_irq_off();
-
     snes_lorom();
-    info("Set Snes lowrom \n");
-
     rle_decode(&_rom, ROM_BUFFER_SIZE, 0x000000);
+    info_P(PSTR("\n"));
+#if 1
     dump_memory(0x10000 - 0x100, 0x10000);
-
-    snes_reset_hi();
-    snes_reset_off();
-    snes_irq_lo();
-    snes_irq_off();
-    info("IRQ off\n");
+#endif
     snes_hirom();
     snes_wr_disable();
-    info("Disable snes WR\n");
     snes_bus_active();
-    info("Activate Snes bus\n");
-    _delay_ms(100);
-    info("Reset Snes\n");
+    info_P(PSTR("Activate SNES bus\n"));
     send_reset();
-    _delay_ms(100);
-#if 0
-    uint8_t i = 0;
-    i = 20;
-    info("Wait");
-    while (--i) {
-        _delay_ms(500);
-        info(".");
-    }
-    info("\n");
-#endif
+    _delay_ms(50);
+    send_reset();
+    _delay_ms(50);
+}
+
+void banner(){
+    uint8_t i;
+    for (i=0;i<40;i++)
+        info_P(PSTR("\n"));
+    info_P(PSTR(" ________        .__        __    ________               ____  ________\n"));
+    info_P(PSTR(" \\_____  \\  __ __|__| ____ |  | __\\______ \\   _______  _/_   |/  _____/\n"));
+    info_P(PSTR("  /  / \\  \\|  |  \\  |/ ___\\|  |/ / |    |  \\_/ __ \\  \\/ /|   /   __  \\ \n"));
+    info_P(PSTR(" /   \\_/.  \\  |  /  \\  \\___|    <  |    `   \\  ___/\\   / |   \\  |__\\  \\ \n"));
+    info_P(PSTR(" \\_____\\ \\_/____/|__|\\___  >__|_ \\/_______  /\\___  >\\_/  |___|\\_____  / \n"));
+    info_P(PSTR("        \\__>             \\/     \\/        \\/     \\/                 \\/ \n"));
+    info_P(PSTR("\n"));
+    info_P(PSTR("                               www.optixx.org\n"));
+    info_P(PSTR("\n"));
+    info_P(PSTR("System Hw: %s Sw: %s\n"),HW_VERSION,SW_VERSION);
+    
+}
+
+void globals_init(){
+    req_addr = 0;
+    req_addr_end = 0;
+    req_state = REQ_STATUS_IDLE;
+    rx_remaining = 0;
+    tx_remaining = 0;
+    sync_errors = 0;
 }
 
 int main(void)
@@ -551,58 +345,42 @@ int main(void)
 
     uart_init();
     stdout = &uart_stdout;
-
-    info("Sytem start\n");
+    banner();
     system_init();
-    test_sdcard();
-
-#if 0
-    test_read_write();
-    test_bulk_read_write();
-    test_crc();
-    while (1);
-#endif
-
-    info("Boot startup rom\n");
+    snes_reset_hi();
+    snes_reset_off();
+    irq_init();
     boot_startup_rom();
-
+    globals_init();
     usbInit();
     usb_connect();
-
     while (1) {
         avr_bus_active();
-        info("Activate AVR bus\n");
-        info("IRQ off\n");
-        snes_irq_lo();
-        snes_irq_off();
-        info("Set Snes lowrom\n");
+        info_P(PSTR("Activate AVR bus\n"));
         snes_lorom();
-        info("Disable snes WR\n");
+        info_P(PSTR("Disable SNES WR\n"));
         snes_wr_disable();
         sei();
-        info("USB poll\n");
+        info_P(PSTR("USB poll\n"));
         while (req_state != REQ_STATUS_SNES) {
             usbPoll();
         }
-        shared_memory_put(SHARED_MEM_CMD_TERMINATE, 0);
-        info("USB poll done\n");
-        snes_reset_hi();
-        snes_reset_off();
-        snes_irq_lo();
-        snes_irq_off();
-        info("IRQ off\n");
+        shared_memory_write(SHARED_MEM_TX_CMD_TERMINATE, 0);
+
+#if SHM_SCRATCHPAD
+        shared_memory_scratchpad_region_tx_restore();
+        shared_memory_scratchpad_region_rx_restore();
+#endif
+        info_P(PSTR("USB poll done\n"));
         set_rom_mode();
         snes_wr_disable();
-        info("Disable snes WR\n");
+        info_P(PSTR("Disable SNES WR\n"));
         snes_bus_active();
-        info("Activate Snes bus\n");
-        _delay_ms(100);
-        info("Reset Snes\n");
+        info_P(PSTR("Activate SNES bus\n"));
+        irq_stop();
         send_reset();
-
-        info("Poll\n");
-        while (req_state != REQ_STATUS_AVR) {
-
+        info_P(PSTR("Poll USB\n"));
+        while ((req_state != REQ_STATUS_AVR)) {
             usbPoll();
 
 #ifdef DO_IRQ
@@ -612,7 +390,7 @@ int main(void)
             while (--i) {
                 _delay_ms(100);
             }
-            info("Send IRQ %i\n", ++irq_count);
+            info_P(PSTR("Send IRQ %i\n"), ++irq_count);
             send_irq();
 #endif
 
@@ -623,24 +401,24 @@ int main(void)
             i = 5;
             while (--i) {
                 _delay_ms(500);
-                info("Wait to switch to snes mode %i\n", i);
+                info_P(PSTR("Wait to switch to snes mode %i\n"), i);
             }
 
             if (req_bank_size == 0x8000) {
                 snes_lorom();
-                info("Set Snes lowrom \n");
             } else {
                 snes_hirom();
-                info("Set Snes hirom \n");
             }
             snes_wr_disable();
-            info("Disable snes WR\n");
+            info_P(PSTR("Disable SNES WR\n"));
             snes_bus_active();
-            info("Activate Snes bus\n");
-            info("Read 0x3000=%c\n", c);
+            info_P(PSTR("Activate SNES bus\n"));
+            info_P(PSTR("Read 0x3000=%c\n"), c);
 #endif
         }
+        irq_init();
+        boot_startup_rom();
+        globals_init();
     }
-
     return 0;
 }

avr/usbload/mmc.c

@@ -1,194 +0,0 @@
-#include "mmc.h"
-#include <util/delay.h>
-
-uint8_t mmc_init()
-{
-    uint16_t Timeout = 0, i;
-    MMC_REG |= ((1 << MMC_DO) | (1 << MMC_CS) | (1 << MMC_CLK));
-    MMC_REG &= ~(1 << MMC_DI);
-    MMC_WRITE |= ((1 << MMC_DO) | (1 << MMC_DI) | (1 << MMC_CS));
-    _delay_ms(20);
-    for (i = 0; i < 250; i++) {
-        MMC_WRITE ^= (1 << MMC_CLK);
-        _delay_us(4);
-    }
-    MMC_WRITE &= ~(1 << MMC_CLK);
-    _delay_us(10);
-    MMC_WRITE &= ~(1 << MMC_CS);
-    _delay_us(3);
-
-    uint8_t CMD[] = { 0x40, 0x00, 0x00, 0x00, 0x00, 0x95 };
-    while (mmc_write_command(CMD) != 1) {
-        if (Timeout++ > 20) {
-            mmc_disable();
-            return (1);
-        }
-    }
-
-    Timeout = 0;
-    CMD[0] = 0x41;
-    CMD[5] = 0xFF;
-    while (mmc_write_command(CMD) != 0) {
-        if (Timeout++ > 800) {
-            mmc_disable();
-            return (9);
-        }
-    }
-    return (0);
-}
-
-uint8_t mmc_write_command(uint8_t * cmd)
-{
-    uint8_t tmp = 0xff;
-    uint16_t Timeout = 0;
-    uint8_t a;
-
-    for (a = 0; a < 0x06; a++) {
-        mmc_write_byte(*cmd++);
-    }
-
-    while (tmp == 0xff) {
-        tmp = mmc_read_byte();
-        if (Timeout++ > 50) {
-            break;
-        }
-    }
-    return (tmp);
-}
-
-
-uint8_t mmc_read_byte(void)
-{
-    uint8_t Byte = 0, j;
-    for (j = 0; j < 8; j++) {
-        Byte = (Byte << 1);
-        MMC_WRITE |= (1 << MMC_CLK);
-        _delay_us(4);
-        if (PINB & (1 << MMC_DI)) {
-            Byte |= 1;
-        }
-
-        else {
-            Byte &= ~1;
-        }
-        MMC_WRITE &= ~(1 << MMC_CLK);
-        _delay_us(4);
-    }
-    return (Byte);
-}
-
-
-void mmc_write_byte(uint8_t Byte)
-{
-    uint8_t i;
-    for (i = 0; i < 8; i++) {
-        if (Byte & 0x80) {
-            MMC_WRITE |= (1 << MMC_DO);
-        }
-
-        else {
-            MMC_WRITE &= ~(1 << MMC_DO);
-        }
-        Byte = (Byte << 1);
-        MMC_WRITE |= (1 << MMC_CLK);
-        _delay_us(4);
-        MMC_WRITE &= ~(1 << MMC_CLK);
-        _delay_us(4);
-    }
-    MMC_WRITE |= (1 << MMC_DO);
-}
-
-uint8_t mmc_write_sector(uint32_t addr, uint8_t * Buffer)
-{
-    uint8_t tmp;
-
-
-    uint8_t cmd[] = { 0x58, 0x00, 0x00, 0x00, 0x00, 0xFF };
-    uint8_t a;
-    uint16_t i;
-
-    addr = addr << 9;
-    cmd[1] = ((addr & 0xFF000000) >> 24);
-    cmd[2] = ((addr & 0x00FF0000) >> 16);
-    cmd[3] = ((addr & 0x0000FF00) >> 8);
-
-
-    tmp = mmc_write_command(cmd);
-    if (tmp != 0) {
-        return (tmp);
-    }
-
-    for (a = 0; a < 100; a++) {
-        mmc_read_byte();
-    }
-
-    mmc_write_byte(0xFE);
-
-    for (a = 0; i < 512; i++) {
-        mmc_write_byte(*Buffer++);
-    }
-
-    mmc_write_byte(0xFF);
-    mmc_write_byte(0xFF);
-
-    if ((mmc_read_byte() & 0x1F) != 0x05)
-        return (1);
-
-    while (mmc_read_byte() != 0xff) {
-    };
-    return (0);
-}
-
-
-void mmc_read_block(uint8_t * cmd, uint8_t * Buffer, uint16_t Bytes)
-{
-    uint16_t a;
-
-    if (mmc_write_command(cmd) != 0) {
-        return;
-    }
-
-    while (mmc_read_byte() != 0xfe) {
-    };
-
-
-    for (a = 0; a < Bytes; a++) {
-        *Buffer++ = mmc_read_byte();
-    }
-
-    mmc_read_byte();
-    mmc_read_byte();
-    return;
-}
-
-uint8_t mmc_read_sector(uint32_t addr, uint8_t * Buffer)
-{
-
-
-    uint8_t cmd[] = { 0x51, 0x00, 0x00, 0x00, 0x00, 0xFF };
-
-    addr = addr << 9;
-    cmd[1] = ((addr & 0xFF000000) >> 24);
-    cmd[2] = ((addr & 0x00FF0000) >> 16);
-    cmd[3] = ((addr & 0x0000FF00) >> 8);
-    mmc_read_block(cmd, Buffer, 512);
-    return (0);
-}
-
-
-uint8_t mmc_read_cid(uint8_t * Buffer)
-{
-
-    uint8_t cmd[] = { 0x4A, 0x00, 0x00, 0x00, 0x00, 0xFF };
-    mmc_read_block(cmd, Buffer, 16);
-    return (0);
-}
-
-
-uint8_t mmc_read_csd(uint8_t * Buffer)
-{
-
-    uint8_t cmd[] = { 0x49, 0x00, 0x00, 0x00, 0x00, 0xFF };
-    mmc_read_block(cmd, Buffer, 16);
-    return (0);
-}

avr/usbload/mmc.h

@@ -1,29 +0,0 @@
-#ifndef _MMC_H_
-#define _MMC_H_
-
-#include <avr/io.h>
-
-
-#define MMC_WRITE			PORTB
-#define MMC_READ			PINB
-#define MMC_REG	DDRB
-
-#define MMC_CS  PB4
-#define MMC_DO  PB6
-#define MMC_DI  PB5
-#define MMC_CLK PB7
-extern uint8_t mmc_read_byte(void);
-extern void mmc_write_byte(uint8_t);
-extern void mmc_read_block(uint8_t *, uint8_t *, unsigned in);
-extern uint8_t mmc_init(void);
-extern uint8_t mmc_read_sector(uint32_t, uint8_t *);
-extern uint8_t mmc_write_sector(uint32_t, uint8_t *);
-extern uint8_t mmc_write_command(uint8_t *);
-extern uint8_t mmc_read_csd(uint8_t *);
-extern uint8_t mmc_read_cid(uint8_t *);
-
-#define mmc_disable() MMC_WRITE|= (1<<MMC_CS);
-
-#define mmc_enable() MMC_WRITE&=~(1<<MMC_CS);
-
-#endif

avr/usbload/rle.c

@@ -36,7 +36,7 @@ uint8_t rle_decode(PGM_VOID_P in_addr, int32_t in_len, uint32_t out_addr)
 {
     uint8_t in_byte, in_repeat, last_byte;
     uint32_t out_len, out_len_left;
-    info("RLE decode len=%li addr=0x%08lx\n", in_len, out_addr);
+    info_P(PSTR("RLE decode len=%li addr=0x%08lx\n"), in_len, out_addr);
     last_byte = 0;
 
     out_len_left = out_len;
@@ -63,7 +63,7 @@ uint8_t rle_decode(PGM_VOID_P in_addr, int32_t in_len, uint32_t out_addr)
     if (in_byte == RUNCHAR) {
         INBYTE(in_repeat);
         if (in_repeat != 0) {
-            info("Orphaned RLE code at start\n");
+            info_P(PSTR("Orphaned RLE code at start\n"));
             return 1;
         }
         OUTBYTE(RUNCHAR);
@@ -74,7 +74,7 @@ uint8_t rle_decode(PGM_VOID_P in_addr, int32_t in_len, uint32_t out_addr)
     while (in_len > 0) {
         INBYTE(in_byte);
         if (in_len % 1024 == 0)
-            info(".");
+            info_P(PSTR("."));
         if (in_byte == RUNCHAR) {
             INBYTE(in_repeat);
             if (in_repeat == 0) {

avr/usbload/shared_memory.c

@@ -29,6 +29,7 @@
 #include "config.h"
 #include "sram.h"
 #include "debug.h"
+#include "dump.h"
 #include "info.h"
 
 uint8_t irq_addr_lo;
@@ -38,20 +39,132 @@ uint8_t scratchpad_state;
 uint8_t scratchpad_cmd;
 uint8_t scratchpad_payload;
 
-void shared_memory_scratchpad_save()
-{
-    scratchpad_state = sram_read(SHARED_MEM_LOC_STATE);
-    scratchpad_cmd = sram_read(SHARED_MEM_LOC_CMD);
-    scratchpad_payload = sram_read(SHARED_MEM_LOC_PAYLOAD);
+uint8_t scratchpad_region_rx[SHARED_MEM_RX_LOC_SIZE];
+uint8_t scratchpad_region_tx[SHARED_MEM_TX_LOC_SIZE];
+
+uint8_t scratchpad_locked_rx = 1;
+uint8_t scratchpad_locked_tx = 1;
+
+
+uint8_t shared_memory_scratchpad_region_save_helper(uint32_t addr){
+    
+    if(addr > (SHARED_MEM_TX_LOC_STATE +  SHARED_MEM_TX_LOC_SIZE) &&  scratchpad_locked_tx){
+        debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_save_helper: open tx addr=0x%06lx\n"),addr);
+        shared_memory_scratchpad_region_tx_save();
+        return 0;
+    }
+    if(addr > (SHARED_MEM_RX_LOC_STATE +  SHARED_MEM_RX_LOC_SIZE) &&  scratchpad_locked_rx){
+        debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_save_helper: open rx addr=0x%06lx\n"),addr);
+        shared_memory_scratchpad_region_rx_save();
+        return 0;
+    }
+    return 1;
 }
 
-void shared_memory_scratchpad_restore()
+
+void shared_memory_scratchpad_region_tx_save()
 {
-    sram_write(SHARED_MEM_LOC_STATE, scratchpad_state);
-    sram_write(SHARED_MEM_LOC_CMD, scratchpad_cmd);
-    sram_write(SHARED_MEM_LOC_PAYLOAD, scratchpad_payload);
+#if 0 
+    uint16_t crc;
+    crc = crc_check_bulk_memory((uint32_t)SHARED_MEM_TX_LOC_STATE, 
+        (uint32_t)(SHARED_MEM_TX_LOC_STATE + SHARED_MEM_TX_LOC_SIZE), 0x8000);
+    debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_tx_save: crc=%x\n"),crc);
+#endif
+
+    debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_tx_save: unlock\n"));
+    sram_bulk_copy_into_buffer((uint32_t)SHARED_MEM_TX_LOC_STATE,scratchpad_region_tx,
+        (uint32_t)SHARED_MEM_TX_LOC_SIZE);
+    scratchpad_locked_tx = 0;
+
+#if 0 
+    dump_packet(SHARED_MEM_TX_LOC_STATE, SHARED_MEM_TX_LOC_SIZE, scratchpad_region_tx);
+    dump_memory(SHARED_MEM_TX_LOC_STATE, SHARED_MEM_TX_LOC_STATE + SHARED_MEM_TX_LOC_SIZE);
+#endif
+    
+
 }
 
+void shared_memory_scratchpad_region_rx_save()
+{
+#if 0    
+    uint16_t crc;
+    crc = crc_check_bulk_memory((uint32_t)SHARED_MEM_RX_LOC_STATE, 
+        (uint32_t)(SHARED_MEM_RX_LOC_STATE + SHARED_MEM_RX_LOC_SIZE), 0x8000);
+    debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_tx_save: crc=%x\n"),crc);
+#endif
+
+    debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_rx_save: unlock\n"));
+    sram_bulk_copy_into_buffer((uint32_t)SHARED_MEM_RX_LOC_STATE,scratchpad_region_rx,
+        (uint32_t)SHARED_MEM_RX_LOC_SIZE);
+    scratchpad_locked_rx = 0;
+
+#if 0    
+    dump_packet(SHARED_MEM_RX_LOC_STATE, SHARED_MEM_RX_LOC_SIZE, scratchpad_region_tx);
+    dump_memory(SHARED_MEM_RX_LOC_STATE, SHARED_MEM_RX_LOC_STATE + SHARED_MEM_RX_LOC_SIZE);
+#endif
+}
+
+void shared_memory_scratchpad_region_tx_restore()
+{
+    if (scratchpad_locked_tx)
+        return;
+
+    debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_tx_restore: lock\n"));
+    sram_bulk_copy_from_buffer((uint32_t)SHARED_MEM_TX_LOC_STATE,scratchpad_region_tx,
+        (uint32_t)SHARED_MEM_TX_LOC_SIZE);
+    scratchpad_locked_tx = 1;
+#if 0    
+    dump_packet(SHARED_MEM_TX_LOC_STATE, SHARED_MEM_TX_LOC_SIZE, scratchpad_region_tx);
+    dump_memory(SHARED_MEM_TX_LOC_STATE, SHARED_MEM_TX_LOC_STATE + SHARED_MEM_TX_LOC_SIZE);
+#endif
+
+#if 0    
+    uint16_t crc;
+    crc = crc_check_bulk_memory((uint32_t)SHARED_MEM_TX_LOC_STATE, 
+        (uint32_t)(SHARED_MEM_TX_LOC_STATE + SHARED_MEM_TX_LOC_SIZE), 0x8000);
+    debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_tx_restore: crc=%x\n"),crc);
+#endif
+}
+
+
+void shared_memory_scratchpad_region_rx_restore()
+{
+    if (scratchpad_locked_rx)
+        return;
+    debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_tx_save: lock\n"));
+    sram_bulk_copy_from_buffer((uint32_t)SHARED_MEM_RX_LOC_STATE,scratchpad_region_rx,
+        (uint32_t)SHARED_MEM_RX_LOC_SIZE);
+    scratchpad_locked_rx = 1;
+
+#if 0    
+    dump_packet(SHARED_MEM_RX_LOC_STATE, SHARED_MEM_TX_LOC_SIZE, scratchpad_region_rx);
+    dump_memory(SHARED_MEM_RX_LOC_STATE, SHARED_MEM_TX_LOC_STATE + SHARED_MEM_RX_LOC_SIZE);
+#endif
+
+#if 1    
+    uint16_t crc;
+    crc = crc_check_bulk_memory((uint32_t)SHARED_MEM_RX_LOC_STATE, 
+        (uint32_t)(SHARED_MEM_RX_LOC_STATE + SHARED_MEM_RX_LOC_SIZE), 0x8000);
+    debug_P(DEBUG_SHM, PSTR("shared_memory_scratchpad_region_rx_restore: crc=%x\n"),crc);
+#endif
+}
+
+
+void shared_memory_scratchpad_tx_save()
+{
+    scratchpad_state = sram_read(SHARED_MEM_TX_LOC_STATE);
+    scratchpad_cmd = sram_read(SHARED_MEM_TX_LOC_CMD);
+    scratchpad_payload = sram_read(SHARED_MEM_TX_LOC_PAYLOAD);
+}
+
+void shared_memory_scratchpad_tx_restore()
+{
+    sram_write(SHARED_MEM_TX_LOC_STATE, scratchpad_state);
+    sram_write(SHARED_MEM_TX_LOC_CMD, scratchpad_cmd);
+    sram_write(SHARED_MEM_TX_LOC_PAYLOAD, scratchpad_payload);
+}
+
+
 void shared_memory_irq_hook()
 {
     irq_addr_lo = sram_read(SHARED_IRQ_LOC_LO);
@@ -66,24 +179,36 @@ void shared_memory_irq_restore()
     sram_write(SHARED_IRQ_LOC_HI, irq_addr_hi);
 }
 
-void shared_memory_put(uint8_t cmd, uint8_t value)
+void shared_memory_write(uint8_t cmd, uint8_t value)
 {
 
-    info("Write shared memory 0x%04x=0x%02x 0x%04x=0x%02x \n",
-         SHARED_MEM_LOC_CMD, cmd, SHARED_MEM_LOC_PAYLOAD, value);
+    if (scratchpad_locked_tx) 
+        debug_P(DEBUG_SHM, PSTR("shared_memory_write:  locked_tx\n"));
+    
+    debug_P(DEBUG_SHM, PSTR("shared_memory_write:  0x%04x=0x%02x 0x%04x=0x%02x \n"),
+         SHARED_MEM_TX_LOC_CMD, cmd, SHARED_MEM_TX_LOC_PAYLOAD, value);
 
-    shared_memory_scratchpad_save();
+    sram_bulk_addr_save();
+    shared_memory_scratchpad_tx_save();
     shared_memory_irq_hook();
 
-    sram_write(SHARED_MEM_LOC_STATE, SHARED_MEM_SNES_ACK);
-    sram_write(SHARED_MEM_LOC_CMD, cmd);
-    sram_write(SHARED_MEM_LOC_PAYLOAD, value);
+    sram_write(SHARED_MEM_TX_LOC_STATE, SHARED_MEM_TX_SNES_ACK);
+    sram_write(SHARED_MEM_TX_LOC_CMD, cmd);
+    sram_write(SHARED_MEM_TX_LOC_PAYLOAD, value);
 
     snes_hirom();
     snes_wr_disable();
     snes_bus_active();
-    _delay_ms(50);
 
+#if SHARED_MEM_SWITCH_IRQ    
+    snes_irq_on();
+    snes_irq_lo();
+    _delay_us(20);
+    snes_irq_hi();
+    snes_irq_off();
+#else
+    _delay_ms(SHARED_MEM_SWITCH_DELAY);
+#endif
 
     avr_bus_active();
     snes_irq_lo();
@@ -91,7 +216,65 @@ void shared_memory_put(uint8_t cmd, uint8_t value)
     snes_lorom();
     snes_wr_disable();
 
-    shared_memory_scratchpad_restore();
+    shared_memory_scratchpad_tx_restore();
     shared_memory_irq_restore();
+    //sram_bulk_addr_restore();
 
 }
+
+void shared_memory_yield()
+{
+
+    snes_hirom();
+    snes_wr_disable();
+    snes_bus_active();
+    _delay_ms(SHARED_MEM_SWITCH_DELAY);
+    avr_bus_active();
+    snes_lorom();
+    snes_wr_disable();
+
+}
+
+
+int shared_memory_read(uint8_t *cmd, uint8_t *len,uint8_t *buffer)
+{
+    uint8_t state;
+    
+    if (scratchpad_locked_rx) 
+        debug_P(DEBUG_SHM, PSTR("shared_memory_write:  locked_tx\n"));
+
+
+    state = sram_read(SHARED_MEM_RX_LOC_STATE);
+    if (state != SHARED_MEM_RX_AVR_ACK){
+        return 1;
+    }
+    sram_bulk_addr_save();
+
+    *cmd = sram_read(SHARED_MEM_RX_LOC_CMD);
+    *len = sram_read(SHARED_MEM_RX_LOC_LEN);
+    debug_P(DEBUG_SHM, PSTR("shared_memory_read: 0x%04x=0x%02x 0x%04x=0x%02x \n"),
+         SHARED_MEM_RX_LOC_CMD, *cmd, SHARED_MEM_RX_LOC_LEN, *len);
+
+    sram_bulk_copy_into_buffer(SHARED_MEM_RX_LOC_PAYLOAD,buffer, *len);
+    sram_write(SHARED_MEM_RX_LOC_STATE, SHARED_MEM_RX_AVR_RTS);
+
+    snes_hirom();
+    snes_wr_disable();
+    snes_bus_active();
+
+#if SHARED_MEM_SWITCH_IRQ    
+    snes_irq_on();
+    snes_irq_lo();
+    _delay_us(20);
+    snes_irq_hi();
+    snes_irq_off();
+#else
+    _delay_ms(SHARED_MEM_SWITCH_DELAY);
+#endif
+
+    avr_bus_active();
+    snes_lorom();
+    snes_wr_disable();
+    sram_bulk_addr_restore();
+    return 0;
+}

avr/usbload/shared_memory.h

@@ -22,30 +22,52 @@
 #define __SHARED_MEMORY_H__
 
 
-#define SHARED_MEM_SNES_ACK           0xa5
-#define SHARED_MEM_SNES_RTS           0x5a
+#define SHARED_MEM_SWITCH_IRQ               0
+#define SHARED_MEM_SWITCH_DELAY             20
+
+#define SHARED_MEM_TX_SNES_ACK              0xa5
+#define SHARED_MEM_TX_SNES_RTS              0x5a
+
+#define SHARED_MEM_TX_CMD_BANK_COUNT        0x00
+#define SHARED_MEM_TX_CMD_BANK_CURRENT      0x01
+
+#define SHARED_MEM_TX_CMD_UPLOAD_START      0x03
+#define SHARED_MEM_TX_CMD_UPLOAD_END        0x04
+#define SHARED_MEM_TX_CMD_UPLOAD_PROGESS    0x05
+#define SHARED_MEM_TX_CMD_TERMINATE         0x06
+
+#define SHARED_MEM_TX_LOC_STATE             0x000000
+#define SHARED_MEM_TX_LOC_SIZE              0x000040
+#define SHARED_MEM_TX_LOC_CMD               0x000001
+#define SHARED_MEM_TX_LOC_PAYLOAD           0x000002
+
+#define SHARED_MEM_RX_AVR_ACK               0xa5
+#define SHARED_MEM_RX_AVR_RTS               0x5a
+
+#define SHARED_MEM_RX_CMD_PRINFT            0x00
+#define SHARED_MEM_RX_CMD_FILESEL           0x01
+
+#define SHARED_MEM_RX_LOC_STATE             0x001000
+#define SHARED_MEM_RX_LOC_SIZE              0x000040
+#define SHARED_MEM_RX_LOC_CMD               0x001001
+#define SHARED_MEM_RX_LOC_LEN               0x001002
+#define SHARED_MEM_RX_LOC_PAYLOAD           0x001003
+
+#define SHARED_IRQ_LOC_LO                   0x00fffe
+#define SHARED_IRQ_LOC_HI                   0x00ffff
+
+/* Use COP IRQ LOC for hooked IRQ handler */
+#define SHARED_IRQ_HANDLER_LO               0x0ffe4
+#define SHARED_IRQ_HANDLER_HI               0x0ffe5
 
 
-#define SHARED_MEM_CMD_BANK_COUNT     0
-#define SHARED_MEM_CMD_BANK_CURRENT   1
 
-#define SHARED_MEM_CMD_UPLOAD_START   3
-#define SHARED_MEM_CMD_UPLOAD_END     4
-#define SHARED_MEM_CMD_UPLOAD_PROGESS 5
-#define SHARED_MEM_CMD_TERMINATE      6
-
-
-#define SHARED_MEM_LOC_STATE            0x000000
-#define SHARED_MEM_LOC_CMD              0x000001
-#define SHARED_MEM_LOC_PAYLOAD          0x000002
-
-#define SHARED_IRQ_LOC_LO              0x00fffe
-#define SHARED_IRQ_LOC_HI              0x00ffff
-
-
-#define SHARED_IRQ_HANDLER_LO           0x00
-#define SHARED_IRQ_HANDLER_HI           0x10
-
-void shared_memory_put(uint8_t cmd, uint8_t value);
+uint8_t shared_memory_scratchpad_region_save_helper(uint32_t addr);
+void shared_memory_scratchpad_region_tx_save();
+void shared_memory_scratchpad_region_tx_restore();
+void shared_memory_scratchpad_region_rx_save();
+void shared_memory_scratchpad_region_rx_restore();
+void shared_memory_write(uint8_t cmd, uint8_t value);
+int shared_memory_read(uint8_t *cmd, uint8_t *len,uint8_t *buffer);
 
 #endif

avr/usbload/sram.c

@@ -31,6 +31,9 @@
 #include "debug.h"
 #include "info.h"
 
+uint32_t addr_current = 0;
+uint32_t addr_stash = 0;
+
 void system_init(void)
 {
     /*-------------------------------------------------*/
@@ -44,18 +47,17 @@ void system_init(void)
                 | (1 << AVR_ADDR_SCK_PIN)	    
                 | (1 << AVR_ADDR_SER_PIN)	    
                 | (1 << AVR_ADDR_LOAD_PIN)	    
-                | (1 << AVR_ADDR_DOWN_PIN)	    
-                | (1 << AVR_ADDR_UP_PIN));
+                | (1 << AVR_ADDR_UP_PIN));	    
     
-    DDRC &=     ~ (1 << SNES_WR_PIN);	    
+    DDRC &=     ~ ((1 << SNES_WR_PIN)	    
+                | (1 << AVR_BTLDR_EN_PIN));
  
     PORTC &=    ~((1 << AVR_ADDR_LATCH_PIN)	    
                 | (1 << AVR_ADDR_SCK_PIN)
                 | (1 << SNES_WR_PIN));
  
     
-    PORTC |=    ( (1 << AVR_ADDR_DOWN_PIN)	    
-                | (1 << AVR_ADDR_UP_PIN)
+    PORTC |=    ( (1 << AVR_ADDR_UP_PIN)
                 | (1 << AVR_ADDR_LOAD_PIN));    
                 
                 //| (1 << SNES_WR_PIN));
@@ -89,23 +91,22 @@ void system_init(void)
     
 }   
 
-
 void sreg_set(uint32_t addr)
 {
     uint8_t i = 24;
-    debug(DEBUG_SREG,"sreg_set: addr=0x%08lx",addr);
+    debug_P(DEBUG_SREG, PSTR("sreg_set: addr=0x%08lx"),addr);
     while(i--) {
         if ((addr & ( 1L << i))){
-            debug(DEBUG_SREG,"1");
+            debug_P(DEBUG_SREG, PSTR("1"));
             AVR_ADDR_SER_PORT |= ( 1 << AVR_ADDR_SER_PIN);
         } else {
             AVR_ADDR_SER_PORT &= ~( 1 << AVR_ADDR_SER_PIN);
-            debug(DEBUG_SREG,"0");
+            debug_P(DEBUG_SREG, PSTR("0"));
         }
         AVR_ADDR_SCK_PORT |= (1 << AVR_ADDR_SCK_PIN);
         AVR_ADDR_SCK_PORT &= ~(1 << AVR_ADDR_SCK_PIN);
     }
-    debug(DEBUG_SREG,"\n");
+    debug_P(DEBUG_SREG, PSTR("\n"));
     AVR_ADDR_LATCH_PORT |= (1 << AVR_ADDR_LATCH_PIN);
     AVR_ADDR_LATCH_PORT &= ~(1 << AVR_ADDR_LATCH_PIN);
     
@@ -113,11 +114,23 @@ void sreg_set(uint32_t addr)
     
 }
 
+inline void sram_bulk_addr_save()
+{
+    addr_stash = addr_current;
+}
+
+inline void sram_bulk_addr_restore()
+{
+    sreg_set(addr_stash);
+}
 
 
 void sram_bulk_read_start(uint32_t addr)
 {
-    debug(DEBUG_SRAM,"sram_bulk_read_start: addr=0x%08lx\n\r", addr);
+    debug_P(DEBUG_SRAM, PSTR("sram_bulk_read_start: addr=0x%08lx\n\r"), addr);
+
+    addr_current = addr;
+
     avr_data_in();
 
     AVR_CS_PORT &= ~(1 << AVR_CS_PIN);
@@ -138,6 +151,7 @@ void sram_bulk_read_start(uint32_t addr)
 
 inline void sram_bulk_read_next(void)
 {
+    addr_current++;
     AVR_RD_PORT |= (1 << AVR_RD_PIN);
     counter_up();
     AVR_RD_PORT &= ~(1 << AVR_RD_PIN);
@@ -159,7 +173,7 @@ inline uint8_t sram_bulk_read(void)
 
 void sram_bulk_read_end(void)
 {
-    debug(DEBUG_SRAM,"sram_bulk_read_end:\n");
+    debug_P(DEBUG_SRAM, PSTR("sram_bulk_read_end:\n"));
 
     AVR_RD_PORT |= (1 << AVR_RD_PIN);
     AVR_CS_PORT |= (1 << AVR_CS_PIN);
@@ -169,7 +183,7 @@ void sram_bulk_read_end(void)
 uint8_t sram_read(uint32_t addr)
 {
     uint8_t byte;
-    debug(DEBUG_SRAM_RAW,"sram_read: addr=0x%08lx\n\r", addr);
+    debug_P(DEBUG_SRAM_RAW, PSTR("sram_read: addr=0x%08lx\n\r"), addr);
     
     avr_data_in();
     
@@ -201,7 +215,7 @@ uint8_t sram_read(uint32_t addr)
 
 void sram_bulk_write_start(uint32_t addr)
 {
-    debug(DEBUG_SRAM,"sram_bulk_write_start: addr=0x%08lx\n\r", addr);
+    debug_P(DEBUG_SRAM, PSTR("sram_bulk_write_start: addr=0x%08lx\n\r"), addr);
 
     avr_data_out();
 
@@ -229,7 +243,7 @@ inline void sram_bulk_write( uint8_t data)
 
 void sram_bulk_write_end(void)
 {
-    debug(DEBUG_SRAM,"sram_bulk_write_end:");
+    debug_P(DEBUG_SRAM, PSTR("sram_bulk_write_end:"));
     AVR_WR_PORT |= (1 << AVR_WR_PIN);
     AVR_CS_PORT |= (1 << AVR_CS_PIN);
     avr_data_in();
@@ -238,7 +252,7 @@ void sram_bulk_write_end(void)
 
 void sram_write(uint32_t addr, uint8_t data)
 {
-    debug(DEBUG_SRAM_RAW,"sram_write: addr=0x%08lx data=%x\n\r", addr, data);
+    debug_P(DEBUG_SRAM_RAW, PSTR("sram_write: addr=0x%08lx data=%x\n\r"), addr, data);
 
     avr_data_out();
     
@@ -267,12 +281,13 @@ void sram_write(uint32_t addr, uint8_t data)
 }
 
 
-void sram_bulk_copy(uint32_t addr, uint8_t * src, uint32_t len)
+void sram_bulk_copy_from_buffer(uint32_t addr, uint8_t * src, uint32_t len)
 {
 
     uint32_t i;
     uint8_t *ptr = src;
-    debug(DEBUG_SRAM,"sram_copy: addr=0x%08lx src=0x%p len=%li\n\r", addr,src,len);
+    debug_P(DEBUG_SRAM, PSTR("sram_bulk_copy_from_buffer: addr=0x%08lx src=0x%p len=%li\n\r"), 
+        addr, src, len);
     sram_bulk_write_start(addr);
     for (i = addr; i < (addr + len); i++){
         sram_bulk_write(*ptr++);
@@ -281,12 +296,13 @@ void sram_bulk_copy(uint32_t addr, uint8_t * src, uint32_t len)
     sram_bulk_write_end();
 }
 
-void sram_bulk_read_buffer(uint32_t addr, uint8_t * dst, uint32_t len)
+void sram_bulk_copy_into_buffer(uint32_t addr, uint8_t * dst, uint32_t len)
 {
 
     uint32_t i;
     uint8_t *ptr = dst;
-    debug(DEBUG_SRAM,"sram_bulk_read_buffer: addr=0x%08lx dst=0x%p len=%li\n\r", addr,dst,len);
+    debug_P(DEBUG_SRAM, PSTR("sram_bulk_copy_into_buffer: addr=0x%08lx dst=0x%p len=%li\n\r"), 
+        addr, dst, len);
     sram_bulk_read_start(addr);
     for (i = addr; i < (addr + len); i++) {
         *ptr = sram_bulk_read();
@@ -298,59 +314,14 @@ void sram_bulk_read_buffer(uint32_t addr, uint8_t * dst, uint32_t len)
 
 void sram_bulk_set(uint32_t addr, uint32_t len,uint8_t value){
     uint32_t i;
-    debug(DEBUG_SRAM,"sram_bulk_set: addr=0x%08lx len=%li\n\r", addr,len);
+    debug_P(DEBUG_SRAM, PSTR("sram_bulk_set: addr=0x%08lx len=%li\n\r"), addr,len);
     sram_bulk_write_start(addr);
     for (i = addr; i < (addr + len); i++) {
         if (0 == i % 0xfff)
-            debug(DEBUG_SRAM,"sram_bulk_set: addr=0x%08lx\n\r", i);
+            debug_P(DEBUG_SRAM, PSTR("sram_bulk_set: addr=0x%08lx\n\r"), i);
         sram_bulk_write(value);
         sram_bulk_write_next();
     }
     sram_bulk_write_end();
 }
 
-void sram_setr(uint32_t addr, uint32_t len,uint8_t value)
-{
-    uint32_t i;
-    debug(DEBUG_SRAM,"sram_clear: addr=0x%08lx len=%li\n\r", addr,len);
-    for (i = addr; i < (addr + len); i++) {
-        if (0 == i % 0xfff)
-            debug(DEBUG_SRAM,"sram_clear: addr=0x%08lx\n\r", i);
-        sram_write(i, value);
-    }
-}
-
-void sram_copy(uint32_t addr, uint8_t * src, uint32_t len)
-{
-
-    uint32_t i;
-    uint8_t *ptr = src;
-    debug(DEBUG_SRAM,"sram_copy: addr=0x%08lx src=0x%p len=%li\n\r", addr,src,len);
-    for (i = addr; i < (addr + len); i++)
-        sram_write(i, *ptr++);
-}
-
-void sram_read_buffer(uint32_t addr, uint8_t * dst, uint32_t len)
-{
-
-    uint32_t i;
-    uint8_t *ptr = dst;
-    debug(DEBUG_SRAM,"sram_read_buffer: addr=0x%08lx dst=0x%p len=%li\n\r", addr,dst,len);
-    for (i = addr; i < (addr + len); i++) {
-        *ptr = sram_read(i);
-        ptr++;
-    }
-}
-
-
-uint8_t sram_check(uint8_t * buffer, uint32_t len)
-{
-    uint16_t cnt;
-    debug(DEBUG_SRAM,"sram_check: len=%li\n\r",len);
-    for (cnt = 0; cnt < len; cnt++)
-        if (buffer[cnt])
-            return 1;
-    return 0;
-}
-
-

avr/usbload/sram.h

@@ -40,14 +40,6 @@
 
 #define avr_data_out()          (AVR_DATA_DIR = 0xff)
 
-#define LED_PORT	            PORTC
-#define LED_DIR		            DDRC
-#define LED_PIN		            PC7
-
-#define led_on()	            ((LED_PORT &=~ (1 << LED_PIN)),\
-                                (LED_DIR &=~ (1 << LED_PIN)))
-#define led_off()	            ((LED_PORT &=~ (1 << LED_PIN)),\
-                                (LED_DIR |= (1 << LED_PIN)))
 
 /* ---------------------------- PORT B ---------------------------- */
 
@@ -85,17 +77,6 @@
 #define snes_irq_off()          (SNES_IRQ_DIR &= ~(1 << SNES_IRQ_PIN))
 #define snes_irq_lo()           (SNES_IRQ_PORT &= ~(1 << SNES_IRQ_PIN))
 
-#define SNES_RESET_PORT           PORTB
-#define SNES_RESET_DIR            DDRB
-#define SNES_RESET_PIN            PB4
-
-
-#define snes_reset_on()          (SNES_RESET_DIR |= (1 << SNES_RESET_PIN))
-#define snes_reset_hi()          (SNES_RESET_PORT |= (1 << SNES_RESET_PIN))
-
-#define snes_reset_off()          (SNES_RESET_DIR &= ~(1 << SNES_RESET_PIN))
-#define snes_reset_lo()           (SNES_RESET_PORT &= ~(1 << SNES_RESET_PIN))
-
 
 /* ---------------------------- PORT C ---------------------------- */
 
@@ -129,12 +110,12 @@
 #define counter_load()	        ((AVR_ADDR_LOAD_PORT &= ~(1 << AVR_ADDR_LOAD_PIN)),\
                                 (AVR_ADDR_LOAD_PORT |= (1 << AVR_ADDR_LOAD_PIN)))
 
-#define AVR_ADDR_DOWN_PORT	    PORTC
-#define AVR_ADDR_DOWN_DIR	    DDRC
-#define AVR_ADDR_DOWN_PIN	    PC1
+#define AVR_BTLDR_EN_PORT	    PORTC
+#define AVR_BTLDR_EN_DIR	    DDRC
+#define AVR_BTLDR_EN_PIN	    PC1
 
-#define counter_down()	        ((AVR_ADDR_DOWN_PORT &= ~(1 << AVR_ADDR_DOWN_PIN)),\
-                                (AVR_ADDR_DOWN_PORT |= (1 << AVR_ADDR_DOWN_PIN)))
+#define btldr_down()	        ((AVR_BTLDR_EN_PORT &= ~(1 << AVR_BTLDR_EN_PIN)),\
+                                (AVR_BTLDR_EN_PORT |= (1 << AVR_BTLDR_EN_PIN)))
 
 #define AVR_ADDR_UP_PORT	    PORTC
 #define AVR_ADDR_UP_DIR	        DDRC
@@ -147,6 +128,16 @@
 #define SNES_WR_DIR	            DDRC
 #define SNES_WR_PIN	            PC3
 
+#define LED_PORT	            PORTC
+#define LED_DIR		            DDRC
+#define LED_PIN		            PC7
+
+#define led_on()	            ((LED_PORT &=~ (1 << LED_PIN)),\
+                                (LED_DIR &=~ (1 << LED_PIN)))
+#define led_off()	            ((LED_PORT &=~ (1 << LED_PIN)),\
+                                (LED_DIR |= (1 << LED_PIN)))
+
+
 /* ---------------------------- PORT D ---------------------------- */
 
 #define AVR_SNES_PORT	        PORTD
@@ -177,6 +168,27 @@
 
 #define snes_wr_enable()	    (SNES_WR_EN_PORT |= (1 << SNES_WR_EN_PIN))
 
+#define SNES_RESET_PORT         PORTD
+#define SNES_RESET_DIR          DDRD
+#define SNES_RESET_PIN          PD3
+#define SNES_RESET_INP          PIND
+
+#define snes_reset_on()         (SNES_RESET_DIR |= (1 << SNES_RESET_PIN))
+#define snes_reset_hi()         (SNES_RESET_PORT |= (1 << SNES_RESET_PIN))
+
+#define snes_reset_off()        (SNES_RESET_DIR &= ~(1 << SNES_RESET_PIN))
+#define snes_reset_lo()         (SNES_RESET_PORT &= ~(1 << SNES_RESET_PIN))
+
+#define snes_reset_test()       ((SNES_RESET_INP & (1 << SNES_RESET_PIN)) == 0)
+
+#define MMC_PORT                PORTB
+#define MMC_DIR                 DDRB
+
+#define MMC_MISO_PIN            PB6
+#define MMC_MOSI_PIN            PB5
+#define MMC_SCK_PIN             PB7
+#define MMC_CS_PIN              PB4
+
 
 
 
@@ -186,9 +198,6 @@ void sreg_set(uint32_t addr);
 
 uint8_t sram_read(uint32_t addr);
 void sram_write(uint32_t addr, uint8_t data);
-void sram_set(uint32_t addr, uint32_t len, uint8_t value);
-void sram_copy(uint32_t addr,uint8_t *src, uint32_t len);
-void sram_read_buffer(uint32_t addr,uint8_t *dst, uint32_t len);
 
 void sram_bulk_read_start(uint32_t addr);
 inline void sram_bulk_read_next(void);
@@ -200,8 +209,14 @@ inline void sram_bulk_write_next(void);
 inline void sram_bulk_write_end(void);
 void sram_bulk_write(uint8_t data);
 
-void sram_bulk_copy(uint32_t addr, uint8_t * src, uint32_t len);
-void sram_bulk_read_buffer(uint32_t addr, uint8_t * dst, uint32_t len);
+void sram_bulk_copy_from_buffer(uint32_t addr, uint8_t * src, uint32_t len);
+void sram_bulk_copy_into_buffer(uint32_t addr, uint8_t * dst, uint32_t len);
+
 void sram_bulk_set(uint32_t addr, uint32_t len,uint8_t value);
 
+inline void sram_bulk_addr_save();
+inline void sram_bulk_addr_restore();
+
+
+
 #endif

avr/usbload/tags

@@ -0,0 +1,428 @@
+!_TAG_FILE_FORMAT	2	/extended format; --format=1 will not append ;" to lines/
+!_TAG_FILE_SORTED	1	/0=unsorted, 1=sorted, 2=foldcase/
+!_TAG_PROGRAM_AUTHOR	Darren Hiebert	/dhiebert@users.sourceforge.net/
+!_TAG_PROGRAM_NAME	Exuberant Ctags	//
+!_TAG_PROGRAM_URL	http://ctags.sourceforge.net	/official site/
+!_TAG_PROGRAM_VERSION	5.7	//
+AVR_ADDR_DIR	sram.h	103;"	d
+AVR_ADDR_DOWN_DIR	sram.h	133;"	d
+AVR_ADDR_DOWN_PIN	sram.h	134;"	d
+AVR_ADDR_DOWN_PORT	sram.h	132;"	d
+AVR_ADDR_LATCH_DIR	sram.h	105;"	d
+AVR_ADDR_LATCH_PIN	sram.h	106;"	d
+AVR_ADDR_LATCH_PORT	sram.h	104;"	d
+AVR_ADDR_LOAD_DIR	sram.h	126;"	d
+AVR_ADDR_LOAD_PIN	sram.h	127;"	d
+AVR_ADDR_LOAD_PORT	sram.h	125;"	d
+AVR_ADDR_PORT	sram.h	102;"	d
+AVR_ADDR_SCK_DIR	sram.h	112;"	d
+AVR_ADDR_SCK_PIN	sram.h	113;"	d
+AVR_ADDR_SCK_PORT	sram.h	111;"	d
+AVR_ADDR_SER_DIR	sram.h	119;"	d
+AVR_ADDR_SER_PIN	sram.h	120;"	d
+AVR_ADDR_SER_PORT	sram.h	118;"	d
+AVR_ADDR_UP_DIR	sram.h	140;"	d
+AVR_ADDR_UP_PIN	sram.h	141;"	d
+AVR_ADDR_UP_PORT	sram.h	139;"	d
+AVR_CS_DIR	sram.h	71;"	d
+AVR_CS_PIN	sram.h	72;"	d
+AVR_CS_PORT	sram.h	70;"	d
+AVR_DATA_DIR	sram.h	35;"	d
+AVR_DATA_PIN	sram.h	36;"	d
+AVR_DATA_PORT	sram.h	34;"	d
+AVR_DIR	sram.h	55;"	d
+AVR_PORT	sram.h	54;"	d
+AVR_RD_DIR	sram.h	57;"	d
+AVR_RD_PIN	sram.h	58;"	d
+AVR_RD_PORT	sram.h	56;"	d
+AVR_SNES_DIR	sram.h	153;"	d
+AVR_SNES_PORT	sram.h	152;"	d
+AVR_SNES_SW_DIR	sram.h	155;"	d
+AVR_SNES_SW_PIN	sram.h	156;"	d
+AVR_SNES_SW_PORT	sram.h	154;"	d
+AVR_WR_DIR	sram.h	64;"	d
+AVR_WR_PIN	sram.h	65;"	d
+AVR_WR_PORT	sram.h	63;"	d
+CR	uart.h	25;"	d
+DEBOUNCE	timer.c	44;"	d	file:
+DEBUG	config.h	25;"	d
+DEBUG_CRC	config.h	31;"	d
+DEBUG_SHM	config.h	32;"	d
+DEBUG_SRAM	config.h	28;"	d
+DEBUG_SRAM_RAW	config.h	29;"	d
+DEBUG_SREG	config.h	30;"	d
+DEBUG_USB	config.h	26;"	d
+DEBUG_USB_TRANS	config.h	27;"	d
+FILE_MKDIR	config.h	48;"	d
+FILE_RM	config.h	49;"	d
+FILE_WRITE	config.h	47;"	d
+Fat	fat.h	/^  extern struct Fat{						\/\/ fat daten (1.cluster, root-dir, dir usw.)$/;"	s
+File	fat.h	/^  extern struct File{					\/\/ datei infos$/;"	s
+HI_LOROM_SW_DIR	sram.h	166;"	d
+HI_LOROM_SW_PIN	sram.h	167;"	d
+HI_LOROM_SW_PORT	sram.h	165;"	d
+INBYTE	rle.c	44;"	d	file:
+ISR	timer.c	/^ISR (SIG_OUTPUT_COMPARE1A)$/;"	f
+ISR	uart.c	/^ISR(USART0_RX_vect)$/;"	f
+LED_DIR	sram.h	44;"	d
+LED_PIN	sram.h	45;"	d
+LED_PORT	sram.h	43;"	d
+MAX_CLUSTERS_IN_ROW	fat.h	11;"	d
+MMC_CLK	mmc.h	21;"	d
+MMC_CS	mmc.h	18;"	d
+MMC_DI	mmc.h	20;"	d
+MMC_DO	mmc.h	19;"	d
+MMC_READ	mmc.h	15;"	d
+MMC_READ	mmc.h	24;"	d
+MMC_REG	mmc.h	16;"	d
+MMC_REG	mmc.h	25;"	d
+MMC_WRITE	mmc.h	14;"	d
+MMC_WRITE	mmc.h	23;"	d
+OCR1A	timer.c	34;"	d	file:
+OUTBYTE	rle.c	54;"	d	file:
+OVER_WRITE	fat.h	10;"	d
+PROGMEM	loader.c	/^const char _rom[ROM_BUFFER_SIZE] PROGMEM = {$/;"	v
+REQ_STATUS_AVR	config.h	40;"	d
+REQ_STATUS_BULK_NEXT	config.h	37;"	d
+REQ_STATUS_BULK_UPLOAD	config.h	36;"	d
+REQ_STATUS_CRC	config.h	38;"	d
+REQ_STATUS_IDLE	config.h	34;"	d
+REQ_STATUS_SNES	config.h	39;"	d
+REQ_STATUS_UPLOAD	config.h	35;"	d
+ROM_BUFFER_SIZE	loader.h	5;"	d
+ROM_HUFFMAN_SIZE	loader.h	6;"	d
+ROM_RLE_SIZE	loader.h	7;"	d
+RUNCHAR	rle.c	33;"	d	file:
+SHARED_IRQ_HANDLER_HI	shared_memory.h	59;"	d
+SHARED_IRQ_HANDLER_LO	shared_memory.h	58;"	d
+SHARED_IRQ_LOC_HI	shared_memory.h	55;"	d
+SHARED_IRQ_LOC_LO	shared_memory.h	54;"	d
+SHARED_MEM_RX_AVR_ACK	shared_memory.h	43;"	d
+SHARED_MEM_RX_AVR_RTS	shared_memory.h	44;"	d
+SHARED_MEM_RX_CMD_FILESEL	shared_memory.h	47;"	d
+SHARED_MEM_RX_CMD_PRINFT	shared_memory.h	46;"	d
+SHARED_MEM_RX_LOC_CMD	shared_memory.h	50;"	d
+SHARED_MEM_RX_LOC_LEN	shared_memory.h	51;"	d
+SHARED_MEM_RX_LOC_PAYLOAD	shared_memory.h	52;"	d
+SHARED_MEM_RX_LOC_STATE	shared_memory.h	49;"	d
+SHARED_MEM_SWITCH_DELAY	shared_memory.h	26;"	d
+SHARED_MEM_SWITCH_IRQ	shared_memory.h	25;"	d
+SHARED_MEM_TX_CMD_BANK_COUNT	shared_memory.h	31;"	d
+SHARED_MEM_TX_CMD_BANK_CURRENT	shared_memory.h	32;"	d
+SHARED_MEM_TX_CMD_TERMINATE	shared_memory.h	37;"	d
+SHARED_MEM_TX_CMD_UPLOAD_END	shared_memory.h	35;"	d
+SHARED_MEM_TX_CMD_UPLOAD_PROGESS	shared_memory.h	36;"	d
+SHARED_MEM_TX_CMD_UPLOAD_START	shared_memory.h	34;"	d
+SHARED_MEM_TX_LOC_CMD	shared_memory.h	40;"	d
+SHARED_MEM_TX_LOC_PAYLOAD	shared_memory.h	41;"	d
+SHARED_MEM_TX_LOC_STATE	shared_memory.h	39;"	d
+SHARED_MEM_TX_SNES_ACK	shared_memory.h	28;"	d
+SHARED_MEM_TX_SNES_RTS	shared_memory.h	29;"	d
+SMALL_FILE_SYSTEM	config.h	50;"	d
+SMALL_FILE_SYSTEM	fat.h	8;"	d
+SNES_IRQ_DIR	sram.h	78;"	d
+SNES_IRQ_PIN	sram.h	79;"	d
+SNES_IRQ_PORT	sram.h	77;"	d
+SNES_RESET_DIR	sram.h	89;"	d
+SNES_RESET_PIN	sram.h	90;"	d
+SNES_RESET_PORT	sram.h	88;"	d
+SNES_WR_DIR	sram.h	147;"	d
+SNES_WR_EN_DIR	sram.h	173;"	d
+SNES_WR_EN_PIN	sram.h	174;"	d
+SNES_WR_EN_PORT	sram.h	172;"	d
+SNES_WR_PIN	sram.h	148;"	d
+SNES_WR_PORT	sram.h	146;"	d
+SPI_Mode	mmc.h	12;"	d
+TRANSFER_BUFFER_SIZE	config.h	45;"	d
+USB_AVR_RESET	requests.h	40;"	d
+USB_BULK_UPLOAD_ADDR	requests.h	35;"	d
+USB_BULK_UPLOAD_END	requests.h	37;"	d
+USB_BULK_UPLOAD_INIT	requests.h	34;"	d
+USB_BULK_UPLOAD_NEXT	requests.h	36;"	d
+USB_CFG_CHECK_CRC	usbconfig.h	72;"	d
+USB_CFG_CHECK_DATA_TOGGLING	usbconfig.h	211;"	d
+USB_CFG_CLOCK_KHZ	usbconfig.h	65;"	d
+USB_CFG_DESCR_PROPS_CONFIGURATION	usbconfig.h	346;"	d
+USB_CFG_DESCR_PROPS_DEVICE	usbconfig.h	345;"	d
+USB_CFG_DESCR_PROPS_HID	usbconfig.h	352;"	d
+USB_CFG_DESCR_PROPS_HID_REPORT	usbconfig.h	353;"	d
+USB_CFG_DESCR_PROPS_STRINGS	usbconfig.h	347;"	d
+USB_CFG_DESCR_PROPS_STRING_0	usbconfig.h	348;"	d
+USB_CFG_DESCR_PROPS_STRING_PRODUCT	usbconfig.h	350;"	d
+USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER	usbconfig.h	351;"	d
+USB_CFG_DESCR_PROPS_STRING_VENDOR	usbconfig.h	349;"	d
+USB_CFG_DESCR_PROPS_UNKNOWN	usbconfig.h	354;"	d
+USB_CFG_DEVICE_CLASS	usbconfig.h	266;"	d
+USB_CFG_DEVICE_ID	usbconfig.h	231;"	d
+USB_CFG_DEVICE_NAME	usbconfig.h	251;"	d
+USB_CFG_DEVICE_NAME_LEN	usbconfig.h	252;"	d
+USB_CFG_DEVICE_SUBCLASS	usbconfig.h	267;"	d
+USB_CFG_DEVICE_VERSION	usbconfig.h	238;"	d
+USB_CFG_DMINUS_BIT	usbconfig.h	52;"	d
+USB_CFG_DPLUS_BIT	usbconfig.h	56;"	d
+USB_CFG_EP3_NUMBER	usbconfig.h	106;"	d
+USB_CFG_HAVE_FLOWCONTROL	usbconfig.h	161;"	d
+USB_CFG_HAVE_INTRIN_ENDPOINT	usbconfig.h	95;"	d
+USB_CFG_HAVE_INTRIN_ENDPOINT3	usbconfig.h	100;"	d
+USB_CFG_HAVE_MEASURE_FRAME_LENGTH	usbconfig.h	219;"	d
+USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH	usbconfig.h	279;"	d
+USB_CFG_IMPLEMENT_FN_READ	usbconfig.h	149;"	d
+USB_CFG_IMPLEMENT_FN_WRITE	usbconfig.h	144;"	d
+USB_CFG_IMPLEMENT_FN_WRITEOUT	usbconfig.h	155;"	d
+USB_CFG_IMPLEMENT_HALT	usbconfig.h	116;"	d
+USB_CFG_INTERFACE_CLASS	usbconfig.h	271;"	d
+USB_CFG_INTERFACE_PROTOCOL	usbconfig.h	273;"	d
+USB_CFG_INTERFACE_SUBCLASS	usbconfig.h	272;"	d
+USB_CFG_INTR_POLL_INTERVAL	usbconfig.h	130;"	d
+USB_CFG_IOPORTNAME	usbconfig.h	48;"	d
+USB_CFG_IS_SELF_POWERED	usbconfig.h	135;"	d
+USB_CFG_LONG_TRANSFERS	usbconfig.h	166;"	d
+USB_CFG_MAX_BUS_POWER	usbconfig.h	139;"	d
+USB_CFG_SUPPRESS_INTR_CODE	usbconfig.h	122;"	d
+USB_CFG_VENDOR_ID	usbconfig.h	226;"	d
+USB_CFG_VENDOR_NAME	usbconfig.h	241;"	d
+USB_CFG_VENDOR_NAME_LEN	usbconfig.h	242;"	d
+USB_COUNT_SOF	usbconfig.h	187;"	d
+USB_CRC	requests.h	31;"	d
+USB_CRC_ADDR	requests.h	32;"	d
+USB_CRC_CHECK	config.h	43;"	d
+USB_DOWNLOAD_ADDR	requests.h	29;"	d
+USB_DOWNLOAD_INIT	requests.h	28;"	d
+USB_MAX_TRANS	config.h	42;"	d
+USB_MODE_AVR	requests.h	39;"	d
+USB_MODE_SNES	requests.h	38;"	d
+USB_UPLOAD_ADDR	requests.h	26;"	d
+USB_UPLOAD_INIT	requests.h	25;"	d
+WGM12	timer.c	38;"	d	file:
+WRITE	fat.h	9;"	d
+XTAL	timer.c	42;"	d	file:
+_FAT_H	fat.h	4;"	d
+_FILE_H	file.h	6;"	d
+_HARDWARE_H	hardware.h	7;"	d
+_MMC_H	mmc.h	9;"	d
+__COMMAND_H__	command.h	23;"	d
+__CONFIH_H__	config.h	22;"	d
+__CRC_H__	crc.h	23;"	d
+__DEBUG_H__	debug.h	24;"	d
+__DUMP_H__	dump.h	23;"	d
+__FIFO_H__	fifo.h	21;"	d
+__FIFO_H__	loader.h	3;"	d
+__INFO_H__	info.h	24;"	d
+__REQUESTS_H__	requests.h	23;"	d
+__RLE_H__	rle.h	22;"	d
+__SHARED_MEMORY_H__	shared_memory.h	22;"	d
+__SRAM_H__	sram.h	24;"	d
+__TESTING_H__	testing.h	23;"	d
+__TIMER_H__	timer.h	22;"	d
+__UART_H__	uart.h	23;"	d
+__USB_BULK_H__	usb_bulk.h	23;"	d
+__WATCHDOG_H__	watchdog.h	27;"	d
+__usbconfig_h_included__	usbconfig.h	34;"	d
+_inline_fifo_get	fifo.h	/^static inline uint8_t _inline_fifo_get(fifo_t * f)$/;"	f
+_inline_fifo_put	fifo.h	/^static inline uint8_t _inline_fifo_put(fifo_t * f, const uint8_t data)$/;"	f
+adc_int	uart.c	/^    uint8_t adc_int:1;$/;"	m	struct:__anon2	file:
+addr	main.c	/^uint32_t addr;$/;"	v
+addr_current	sram.c	/^uint32_t addr_current = 0;$/;"	v
+addr_stash	sram.c	/^uint32_t addr_stash = 0;$/;"	v
+attrib	fat.h	/^	unsigned char 		attrib;			\/\/ 11,1			datei Attribut: 8=value name, 32=datei, 16=Verzeichniss, 15=linux kleingeschrieben eintrag$/;"	m	struct:File
+avr_addr_latch_hi	sram.h	108;"	d
+avr_addr_latch_lo	sram.h	109;"	d
+avr_addr_sck_hi	sram.h	115;"	d
+avr_addr_sck_lo	sram.h	116;"	d
+avr_addr_ser_hi	sram.h	122;"	d
+avr_addr_ser_lo	sram.h	123;"	d
+avr_bus_active	sram.h	158;"	d
+avr_cs_hi	sram.h	74;"	d
+avr_cs_lo	sram.h	75;"	d
+avr_data_in	sram.h	38;"	d
+avr_data_out	sram.h	41;"	d
+avr_rd_hi	sram.h	60;"	d
+avr_rd_lo	sram.h	61;"	d
+avr_wr_hi	sram.h	67;"	d
+avr_wr_lo	sram.h	68;"	d
+boot_startup_rom	main.c	/^void boot_startup_rom()$/;"	f
+bufferDirty	fat.h	/^	unsigned char 		bufferDirty;	\/\/ puffer wurde beschrieben, sector muss geschrieben werden bevor er neu geladen wird$/;"	m	struct:Fat
+cntOfBytes	fat.h	/^	unsigned int 			cntOfBytes;		\/\/ -nicht direkt aus dem dateisystem- zäht geschriebene bytes eines sektors$/;"	m	struct:File
+count	fifo.h	/^    uint8_t volatile count;     \/\/ # Zeichen im Puffer$/;"	m	struct:__anon1
+counter_down	sram.h	136;"	d
+counter_load	sram.h	129;"	d
+counter_up	sram.h	143;"	d
+crc	main.c	/^uint16_t crc = 0;$/;"	v
+crc_check_bulk_memory	crc.c	/^uint16_t crc_check_bulk_memory(uint32_t bottom_addr, uint32_t top_addr, uint32_t bank_size)$/;"	f
+crc_check_memory_range	crc.c	/^uint16_t crc_check_memory_range(uint32_t start_addr, uint32_t size,uint8_t *buffer)$/;"	f
+crc_xmodem_update	crc.c	/^uint16_t crc_xmodem_update(uint16_t crc, uint8_t data)$/;"	f
+currentSectorNr	fat.h	/^	unsigned long int 	currentSectorNr;\/\/ aktuell geladener Sektor (in sector)  \/\/beschleunigt wenn z.b 2* 512 byte puffer vorhanden, oder bei fat operationen im gleichen sektor$/;"	m	struct:Fat
+dataDirSec	fat.h	/^	unsigned long int  	dataDirSec;		\/\/ Sektor nr data area $/;"	m	struct:Fat
+data_buffer	main.c	/^uint8_t data_buffer[4];$/;"	v
+debug	debug.c	/^void debug(int level, char* format, ...) {$/;"	f
+debug	debug.h	34;"	d
+debug_level	main.c	/^uint8_t debug_level = (DEBUG | DEBUG_USB | DEBUG_CRC);$/;"	v
+dir	fat.h	/^	unsigned long int 	dir; 		  	\/\/ Direktory zeiger rootDir=='0' sonst(1.Cluster des dir; start auf root)$/;"	m	struct:Fat
+do_crc	crc.c	/^uint16_t do_crc(uint8_t * data, uint16_t size)$/;"	f
+do_crc_update	crc.c	/^uint16_t do_crc_update(uint16_t crc, uint8_t * data, uint16_t size)$/;"	f
+dump_memory	dump.c	/^void dump_memory(uint32_t bottom_addr, uint32_t top_addr)$/;"	f
+dump_packet	dump.c	/^void dump_packet(uint32_t addr, uint32_t len, uint8_t * packet)$/;"	f
+endSectors	fat.h	/^	unsigned long int 	endSectors;	$/;"	m	struct:Fat
+fat	fat.c	/^struct Fat fat;   					\/\/ wichtige daten\/variablen der fat$/;"	v	typeref:struct:Fat
+fatSec	fat.h	/^	unsigned long int  	fatSec;	 		\/\/ Sektor nr fat area$/;"	m	struct:Fat
+fatType	fat.h	/^	unsigned char  		fatType;		\/\/ fat16 oder fat32 (16 oder 32)$/;"	m	struct:Fat
+fat_cd	fat.c	/^unsigned char fat_cd(char name[]){$/;"	f
+fat_clustToSec	fat.c	/^unsigned long int fat_clustToSec(unsigned long int clust){$/;"	f
+fat_delClusterChain	fat.c	/^void fat_delClusterChain(unsigned long int startCluster){$/;"	f
+fat_getFatChainClustersInRow	fat.c	/^void fat_getFatChainClustersInRow(unsigned long int offsetCluster){$/;"	f
+fat_getFreeClustersInRow	fat.c	/^void fat_getFreeClustersInRow(unsigned long int offsetCluster){$/;"	f
+fat_getFreeRowOfCluster	fat.c	/^unsigned char fat_getFreeRowOfCluster(unsigned long secStart){$/;"	f
+fat_getFreeRowOfDir	fat.c	/^void fat_getFreeRowOfDir(unsigned long int dir){$/;"	f
+fat_getNextCluster	fat.c	/^unsigned long int fat_getNextCluster(unsigned long int oneCluster){	$/;"	f
+fat_initfat	fat.c	/^unsigned char fat_initfat(void){					$/;"	f
+fat_loadFatData	fat.c	/^unsigned char fat_loadFatData(unsigned long int sec){$/;"	f
+fat_loadFileDataFromCluster	fat.c	/^unsigned char fat_loadFileDataFromCluster(unsigned long int sec , char name[]){$/;"	f
+fat_loadFileDataFromDir	fat.c	/^unsigned char fat_loadFileDataFromDir(char name[]){ $/;"	f
+fat_loadRowOfSector	fat.c	/^unsigned char fat_loadRowOfSector(unsigned int row){$/;"	f
+fat_loadSector	fat.c	/^unsigned char fat_loadSector(unsigned long int sec){$/;"	f
+fat_makeFileEntry	fat.c	/^void fat_makeFileEntry(char name[],unsigned char attrib,unsigned long int length){$/;"	f
+fat_makeRowDataEntry	fat.c	/^void fat_makeRowDataEntry(unsigned int row,char name[],unsigned char attrib,unsigned long int cluster,unsigned long int length){$/;"	f
+fat_secToClust	fat.c	/^unsigned long int fat_secToClust(unsigned long int sec){$/;"	f
+fat_setCluster	fat.c	/^void fat_setCluster(unsigned long int cluster, unsigned long int content){  $/;"	f
+fat_setClusterChain	fat.c	/^void fat_setClusterChain(unsigned long int startCluster,unsigned int endCluster){$/;"	f
+fat_str	fat.c	/^char * fat_str(char *str){$/;"	f
+fat_writeSector	fat.c	/^unsigned char fat_writeSector(unsigned long int sec){	$/;"	f
+ffcd	file.c	/^unsigned char ffcd(char name[]){		$/;"	f
+ffcdLower	file.c	/^unsigned char ffcdLower(void){$/;"	f
+ffclose	file.c	/^unsigned char ffclose(void){$/;"	f
+ffls	file.c	/^void ffls(void){$/;"	f
+ffmkdir	file.c	/^void ffmkdir(char name[]){$/;"	f
+ffopen	file.c	/^unsigned char ffopen(char name[]){		$/;"	f
+ffread	file.c	/^inline unsigned char ffread(void){  	 $/;"	f
+ffrm	file.c	/^unsigned char ffrm(char name[]){ $/;"	f
+ffseek	file.c	/^void ffseek(unsigned long int offset){	$/;"	f
+ffwrite	file.c	/^inline void ffwrite(unsigned char c){$/;"	f
+ffwrites	file.c	/^inline void ffwrites(const char *s ){$/;"	f
+fifo_get_nowait	fifo.c	/^int fifo_get_nowait(fifo_t * f)$/;"	f
+fifo_get_wait	fifo.c	/^uint8_t fifo_get_wait(fifo_t * f)$/;"	f
+fifo_init	fifo.c	/^void fifo_init(fifo_t * f, uint8_t * buffer, const uint8_t size)$/;"	f
+fifo_put	fifo.c	/^uint8_t fifo_put(fifo_t * f, const uint8_t data)$/;"	f
+fifo_t	fifo.h	/^} fifo_t;$/;"	t	typeref:struct:__anon1
+file	fat.c	/^struct File file;					\/\/ wichtige dateibezogene daten\/variablen$/;"	v	typeref:struct:File
+fileUpdate	file.c	/^void fileUpdate(void){$/;"	f
+firstCluster	fat.h	/^	unsigned long int 	firstCluster;	\/\/ 20,2 \/26,2	datei 1.cluster hi,low(möglicherweise der einzige)	(4-byte)$/;"	m	struct:File
+info	info.c	/^void info(char* format, ...) {$/;"	f
+info	info.c	34;"	d	file:
+info	info.h	34;"	d
+intflags	uart.c	/^} intflags;$/;"	v	typeref:struct:__anon2
+irq_addr_hi	shared_memory.c	/^uint8_t irq_addr_hi;$/;"	v
+irq_addr_lo	shared_memory.c	/^uint8_t irq_addr_lo;$/;"	v
+lastCluster	fat.h	/^	unsigned long int 	lastCluster;	\/\/ -nicht direkt aus dem dateisystem- letzter cluster der ersten kette$/;"	m	struct:File
+led_off	sram.h	49;"	d
+led_on	sram.h	47;"	d
+length	fat.h	/^	unsigned long int 	length;			\/\/ 28,4			datei Länge (4-byte)$/;"	m	struct:File
+lsRowsOfClust	file.c	/^void lsRowsOfClust (unsigned long int start_sec){$/;"	f
+main	main.c	/^int main(void)$/;"	f
+mmc_disable	mmc.h	38;"	d
+mmc_enable	mmc.h	40;"	d
+mmc_init	mmc.c	/^uint8_t mmc_init()$/;"	f
+mmc_read_block	mmc.c	/^void mmc_read_block(uint8_t * cmd, uint8_t * Buffer, uint16_t Bytes)$/;"	f
+mmc_read_byte	mmc.c	/^uint8_t mmc_read_byte(void)$/;"	f
+mmc_read_cid	mmc.c	/^uint8_t mmc_read_cid(uint8_t * Buffer)$/;"	f
+mmc_read_csd	mmc.c	/^uint8_t mmc_read_csd(uint8_t * Buffer)$/;"	f
+mmc_read_sector	mmc.c	/^uint8_t mmc_read_sector(uint32_t addr, uint8_t * Buffer)$/;"	f
+mmc_write_byte	mmc.c	/^void mmc_write_byte(uint8_t Byte)$/;"	f
+mmc_write_command	mmc.c	/^uint8_t mmc_write_command(uint8_t * cmd)$/;"	f
+mmc_write_sector	mmc.c	/^uint8_t mmc_write_sector(uint32_t addr, uint8_t * Buffer)$/;"	f
+name	fat.h	/^	unsigned char 		name[13];		\/\/ 0,10			datei Name.ext (8.3 = max 11)(MUSS unsigned char weil E5)$/;"	m	struct:File
+nop	mmc.h	42;"	d
+pread	fifo.h	/^    uint8_t *pread;             \/\/ Lesezeiger$/;"	m	struct:__anon1
+prescaler	timer.c	/^uint16_t prescaler;$/;"	v
+pwrite	fifo.h	/^    uint8_t *pwrite;            \/\/ Schreibzeiger$/;"	m	struct:__anon1
+read2end	fifo.h	/^    uint8_t read2end, write2end;        \/\/ # Zeichen bis zum Überlauf Lese-\/Schreibzeiger$/;"	m	struct:__anon1
+read_buffer	main.c	/^uint8_t read_buffer[TRANSFER_BUFFER_SIZE];$/;"	v
+req_addr	main.c	/^uint32_t req_addr = 0;$/;"	v
+req_addr_end	main.c	/^uint32_t req_addr_end = 0;$/;"	v
+req_bank	main.c	/^uint8_t req_bank;$/;"	v
+req_bank_cnt	main.c	/^uint16_t req_bank_cnt;$/;"	v
+req_bank_size	main.c	/^uint32_t req_bank_size;$/;"	v
+req_percent	main.c	/^uint8_t req_percent;$/;"	v
+req_percent_last	main.c	/^uint8_t req_percent_last;$/;"	v
+req_size	main.c	/^uint32_t req_size;$/;"	v
+req_state	main.c	/^uint8_t req_state = REQ_STATUS_IDLE;$/;"	v
+rle_decode	rle.c	/^uint8_t rle_decode(PGM_VOID_P in_addr, int32_t in_len, uint32_t out_addr)$/;"	f
+rootDir	fat.h	/^	unsigned long int  	rootDir;		\/\/ Sektor(f16)\/Cluster(f32) nr root directory$/;"	m	struct:Fat
+row	fat.h	/^	unsigned char 		row;			\/\/ reihe im sektor in der die datei infos stehen (reihe 0-15)$/;"	m	struct:File
+rx_int	uart.c	/^    uint8_t rx_int:1;$/;"	m	struct:__anon2	file:
+rx_remaining	main.c	/^uint8_t rx_remaining = 0;$/;"	v
+rxbuff	uart.c	/^volatile char rxbuff;$/;"	v
+scratchpad_cmd	shared_memory.c	/^uint8_t scratchpad_cmd;$/;"	v
+scratchpad_payload	shared_memory.c	/^uint8_t scratchpad_payload;$/;"	v
+scratchpad_state	shared_memory.c	/^uint8_t scratchpad_state;$/;"	v
+secPerClust	fat.h	/^	unsigned char 		secPerClust;	\/\/ anzahl der sektoren pro cluster$/;"	m	struct:Fat
+second	timer.c	/^uint16_t volatile second;          \/\/ count seconds$/;"	v
+sector	fat.h	/^	unsigned char 		sector[512];	\/\/ der puffer für sektoren !$/;"	m	struct:Fat
+seek	fat.h	/^	unsigned long int 	seek;			\/\/ schreib position in der datei$/;"	m	struct:File
+send_irq	command.c	/^void send_irq()$/;"	f
+send_reset	command.c	/^void send_reset()$/;"	f
+set_rom_mode	command.c	/^void set_rom_mode()$/;"	f
+shared_memory_irq_hook	shared_memory.c	/^void shared_memory_irq_hook()$/;"	f
+shared_memory_irq_restore	shared_memory.c	/^void shared_memory_irq_restore()$/;"	f
+shared_memory_read	shared_memory.c	/^int shared_memory_read(uint8_t *cmd, uint8_t *len,uint8_t *buffer)$/;"	f
+shared_memory_scratchpad_tx_restore	shared_memory.c	/^void shared_memory_scratchpad_tx_restore()$/;"	f
+shared_memory_scratchpad_tx_save	shared_memory.c	/^void shared_memory_scratchpad_tx_save()$/;"	f
+shared_memory_write	shared_memory.c	/^void shared_memory_write(uint8_t cmd, uint8_t value)$/;"	f
+shared_memory_yield	shared_memory.c	/^void shared_memory_yield()$/;"	f
+size	fifo.h	/^    uint8_t size;               \/\/ Puffer-Größe$/;"	m	struct:__anon1
+snes_bus_active	sram.h	162;"	d
+snes_hirom	sram.h	169;"	d
+snes_irq_hi	sram.h	83;"	d
+snes_irq_lo	sram.h	86;"	d
+snes_irq_off	sram.h	85;"	d
+snes_irq_on	sram.h	82;"	d
+snes_lorom	sram.h	170;"	d
+snes_reset_hi	sram.h	94;"	d
+snes_reset_lo	sram.h	97;"	d
+snes_reset_off	sram.h	96;"	d
+snes_reset_on	sram.h	93;"	d
+snes_wr_disable	sram.h	176;"	d
+snes_wr_enable	sram.h	178;"	d
+soft_reset	watchdog.h	32;"	d
+sram_bulk_addr_restore	sram.c	/^inline void sram_bulk_addr_restore()$/;"	f
+sram_bulk_addr_save	sram.c	/^inline void sram_bulk_addr_save()$/;"	f
+sram_bulk_copy	sram.c	/^void sram_bulk_copy_from_buffer(uint32_t addr, uint8_t * src, uint32_t len)$/;"	f
+sram_bulk_read	sram.c	/^inline uint8_t sram_bulk_read(void)$/;"	f
+sram_bulk_copy_into_buffer	sram.c	/^void sram_bulk_copy_into_buffer(uint32_t addr, uint8_t * dst, uint32_t len)$/;"	f
+sram_bulk_read_end	sram.c	/^void sram_bulk_read_end(void)$/;"	f
+sram_bulk_read_next	sram.c	/^inline void sram_bulk_read_next(void)$/;"	f
+sram_bulk_read_start	sram.c	/^void sram_bulk_read_start(uint32_t addr)$/;"	f
+sram_bulk_set	sram.c	/^void sram_bulk_set(uint32_t addr, uint32_t len,uint8_t value){$/;"	f
+sram_bulk_write	sram.c	/^inline void sram_bulk_write( uint8_t data)$/;"	f
+sram_bulk_write_end	sram.c	/^void sram_bulk_write_end(void)$/;"	f
+sram_bulk_write_next	sram.c	/^inline void sram_bulk_write_next(void)$/;"	f
+sram_bulk_write_start	sram.c	/^void sram_bulk_write_start(uint32_t addr)$/;"	f
+sram_read	sram.c	/^uint8_t sram_read(uint32_t addr)$/;"	f
+sram_write	sram.c	/^void sram_write(uint32_t addr, uint8_t data)$/;"	f
+sreg_set	sram.c	/^void sreg_set(uint32_t addr)$/;"	f
+startSectors	fat.h	/^	unsigned long int   startSectors;	\/\/ der erste sektor in einer reihe (freie oder verkettete)$/;"	m	struct:Fat
+sync_errors	main.c	/^uint16_t sync_errors = 0;$/;"	v
+system_init	sram.c	/^void system_init(void)$/;"	f
+test_bulk_read_write	testing.c	/^void test_bulk_read_write()$/;"	f
+test_crc	testing.c	/^void test_crc()$/;"	f
+test_non_zero_memory	testing.c	/^void test_non_zero_memory(uint32_t bottom_addr, uint32_t top_addr)$/;"	f
+test_read_write	testing.c	/^void test_read_write()$/;"	f
+test_sdcard	testing.c	/^void test_sdcard(void){$/;"	f
+timer_start	timer.c	/^void timer_start( void )$/;"	f
+timer_stop_int	timer.c	/^uint16_t timer_stop_int(void)$/;"	f
+tmr_int	uart.c	/^    uint8_t tmr_int:1;$/;"	m	struct:__anon2	file:
+tx_buffer	main.c	/^uint8_t tx_buffer[32];$/;"	v
+tx_remaining	main.c	/^uint8_t tx_remaining = 0;$/;"	v
+uart_init	uart.c	/^void uart_init(void)$/;"	f
+uart_putc	uart.c	/^void uart_putc(uint8_t c)$/;"	f
+uart_puts	uart.c	/^void uart_puts(const char *s)$/;"	f
+uart_puts_P	uart.c	/^void uart_puts_P(PGM_P s)$/;"	f
+uart_stdout	uart.c	/^FILE uart_stdout = FDEV_SETUP_STREAM(uart_stream, NULL, _FDEV_SETUP_WRITE);$/;"	v
+uart_stream	uart.c	/^static int uart_stream(char c, FILE * stream)$/;"	f	file:
+uint	timer.c	47;"	d	file:
+uint8_t	timer.c	46;"	d	file:
+usbFunctionRead	usb_bulk.c	/^uint8_t usbFunctionRead(uint8_t * data, uint8_t len)$/;"	f
+usbFunctionSetup	main.c	/^usbMsgLen_t usbFunctionSetup(uchar data[8])$/;"	f
+usbFunctionWrite	usb_bulk.c	/^uint8_t usbFunctionWrite(uint8_t * data, uint8_t len)$/;"	f
+usb_connect	main.c	/^void usb_connect()$/;"	f
+wdt_init	watchdog.c	/^void wdt_init(void)$/;"	f
+write2end	fifo.h	/^    uint8_t read2end, write2end;        \/\/ # Zeichen bis zum Überlauf Lese-\/Schreibzeiger$/;"	m	struct:__anon1

avr/usbload/testing.c

@@ -0,0 +1,106 @@
+
+
+/*
+ * =====================================================================================
+ *
+ * ________        .__        __    ________               ____  ________
+ * \_____  \  __ __|__| ____ |  | __\______ \   _______  _/_   |/  _____/
+ *  /  / \  \|  |  \  |/ ___\|  |/ / |    |  \_/ __ \  \/ /|   /   __  \
+ * /   \_/.  \  |  /  \  \___|    <  |    `   \  ___/\   / |   \  |__\  \
+ * \_____\ \_/____/|__|\___  >__|_ \/_______  /\___  >\_/  |___|\_____  /
+ *        \__>             \/     \/        \/     \/                 \/
+ *
+ *                                  www.optixx.org
+ *
+ *
+ *        Version:  1.0
+ *        Created:  07/21/2009 03:32:16 PM
+ *         Author:  david@optixx.org
+ *
+ * =====================================================================================
+ */
+
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <util/delay.h>
+
+#include "shared_memory.h"
+#include "config.h"
+#include "sram.h"
+#include "debug.h"
+#include "crc.h"
+#include "info.h"
+
+void test_read_write()
+{
+
+    uint8_t i;
+    uint32_t addr;
+    avr_bus_active();
+    addr = 0x000000;
+    i = 1;
+    while (addr++ <= 0x0000ff) {
+        sram_write(addr, i++);
+    }
+    addr = 0x000000;
+    while (addr++ <= 0x0000ff) {
+        info_P(PSTR("read addr=0x%08lx %x\n"), addr, sram_read(addr));
+    }
+}
+
+
+
+void test_bulk_read_write()
+{
+
+    uint8_t i;
+    uint32_t addr;
+    avr_bus_active();
+    addr = 0x000000;
+    i = 0;
+    sram_bulk_write_start(addr);
+    while (addr++ <= 0x8000) {
+        sram_bulk_write(i++);
+        sram_bulk_write_next();
+    }
+    sram_bulk_write_end();
+
+    addr = 0x000000;
+    sram_bulk_read_start(addr);
+    while (addr <= 0x8000) {
+        info_P(PSTR("addr=0x%08lx %x\n"), addr, sram_bulk_read());
+        sram_bulk_read_next();
+        addr++;
+    }
+    sram_bulk_read_end();
+}
+
+
+void test_non_zero_memory(uint32_t bottom_addr, uint32_t top_addr)
+{
+    uint32_t addr = 0;
+    uint8_t c;
+    sram_bulk_read_start(bottom_addr);
+    for (addr = bottom_addr; addr < top_addr; addr++) {
+        c = sram_bulk_read();
+        if (c != 0xff)
+            info_P(PSTR("addr=0x%08lx c=0x%x\n"), addr, c);
+        sram_bulk_read_next();
+    }
+    sram_bulk_read_end();
+}
+
+
+
+void test_crc()
+{
+    info_P(PSTR("test_crc: clear\n"));
+    avr_bus_active();
+    sram_bulk_set(0x000000, 0x10000, 0xff);
+    info_P(PSTR("test_crc: crc\n"));
+    crc_check_bulk_memory(0x000000, 0x10000, 0x8000);
+    info_P(PSTR("test_crc: check\n"));
+    test_non_zero_memory(0x000000, 0x10000);
+}
+

avr/usbload/testing.h

@@ -0,0 +1,31 @@
+/*
+ * =====================================================================================
+ *
+ * ________        .__        __    ________               ____  ________
+ * \_____  \  __ __|__| ____ |  | __\______ \   _______  _/_   |/  _____/
+ *  /  / \  \|  |  \  |/ ___\|  |/ / |    |  \_/ __ \  \/ /|   /   __  \
+ * /   \_/.  \  |  /  \  \___|    <  |    `   \  ___/\   / |   \  |__\  \
+ * \_____\ \_/____/|__|\___  >__|_ \/_______  /\___  >\_/  |___|\_____  /
+ *        \__>             \/     \/        \/     \/                 \/
+ *
+ *                                  www.optixx.org
+ *
+ *
+ *        Version:  1.0
+ *        Created:  07/21/2009 03:32:16 PM
+ *         Author:  david@optixx.org
+ *
+ * =====================================================================================
+ */
+
+
+#ifndef __TESTING_H__
+#define __TESTING_H__
+
+
+void test_read_write();
+void test_bulk_read_write();
+void test_non_zero_memory(uint32_t bottom_addr, uint32_t top_addr);
+void test_crc();
+ 
+#endif

avr/usbload/timer.c

@@ -29,7 +29,11 @@
 
 #include "debug.h" 
 #include "info.h"
+#include "sram.h"
  
+ 
+extern uint8_t snes_reset_line;
+  
 #ifndef OCR1A
     #define OCR1A OCR1  // 2313 support
 #endif
@@ -52,6 +56,7 @@ uint16_t volatile second;          // count seconds
  
 ISR (SIG_OUTPUT_COMPARE1A)
 {
+
  
 #if XTAL % DEBOUNCE                     // bei rest
     OCR1A = 20000000UL / DEBOUNCE - 1;      // compare DEBOUNCE - 1 times

avr/usbload/uart.c

@@ -31,10 +31,7 @@ volatile struct {
     uint8_t rx_int:1;
 } intflags;
 
-/*
- *  * Last character read from the UART.
- *   
- */
+
 volatile char rxbuff;
 
 

avr/usbload/uart.h

@@ -37,3 +37,4 @@ static int uart_stream(char c, FILE *stream);
 #endif
 
 
+

avr/usbload/usb_bulk.c

@@ -56,23 +56,14 @@ uint8_t usbFunctionWrite(uint8_t * data, uint8_t len)
     uint8_t  i;
     
     if (len > rx_remaining) {
-        info("ERROR:usbFunctionWrite more data than expected remain: %i len: %i\n",
+        info_P(PSTR("ERROR:usbFunctionWrite more data than expected remain: %i len: %i\n"),
                rx_remaining, len);
         len = rx_remaining;
     }
-    if (req_state == REQ_STATUS_UPLOAD) {
+    if (req_state == REQ_STATUS_BULK_UPLOAD) {
 
         rx_remaining -= len;
-        debug(DEBUG_USB_TRANS,"usbFunctionWrite REQ_STATUS_UPLOAD addr: 0x%08lx len: %i rx_remaining=%i\n",
-               req_addr, len, rx_remaining);
-        debug(DEBUG_USB_TRANS,"usbFunctionWrite %02x %02x %02x %02x %02x %02x %02x %x\n",
-        data[0],data[1],data[2],data[3],data[4],data[5],data[6],data[7]);         
-        sram_copy(req_addr, data, len);
-        req_addr += len;
-    } else if (req_state == REQ_STATUS_BULK_UPLOAD) {
-
-        rx_remaining -= len;
-        debug(DEBUG_USB_TRANS,"usbFunctionWrite REQ_STATUS_BULK_UPLOAD addr: 0x%08lx len: %i rx_remaining=%i\n",
+        debug_P(DEBUG_USB_TRANS, PSTR("usbFunctionWrite REQ_STATUS_BULK_UPLOAD addr: 0x%08lx len: %i rx_remaining=%i\n"),
                req_addr, len, rx_remaining);
         ptr = data;
         i = len;
@@ -81,8 +72,6 @@ uint8_t usbFunctionWrite(uint8_t * data, uint8_t len)
             sram_bulk_write_next();
         }
     }
-    /* test this */
-    //return rx_remaining == 0
     return len;
 }
 
@@ -92,7 +81,7 @@ uint8_t usbFunctionRead(uint8_t * data, uint8_t len)
     if (len > tx_remaining)
         len = tx_remaining;
     tx_remaining -= len;
-    debug(DEBUG_USB_TRANS,"usbFunctionRead len=%i tx_remaining=%i \n", len, tx_remaining);
+    debug_P(DEBUG_USB_TRANS, PSTR("usbFunctionRead len=%i tx_remaining=%i \n"), len, tx_remaining);
 
     for (i = 0; i < len; i++) {
         *data = tx_buffer[len];

avr/usbload/usbconfig.h

@@ -248,8 +248,8 @@ section at the end of this file).
  * obdev's free shared VID/PID pair. See the file USBID-License.txt for
  * details.
  */
-#define USB_CFG_DEVICE_NAME     'S', 'N', 'E', 'S', 'R', 'A', 'M'
-#define USB_CFG_DEVICE_NAME_LEN 7
+#define USB_CFG_DEVICE_NAME     'Q', 'U', 'I', 'C', 'K', 'D', 'E', 'V', '1', '6'
+#define USB_CFG_DEVICE_NAME_LEN 10
 /* Same as above for the device name. If you don't want a device name, undefine
  * the macros. See the file USBID-License.txt before you assign a name if you
  * use a shared VID/PID.

quickdev16.tmproj

@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>currentDocument</key>
+	<string>avr/usbload/irq.c</string>
 	<key>documents</key>
 	<array>
 		<dict>
@@ -19,6 +21,782 @@
 	<integer>271</integer>
 	<key>metaData</key>
 	<dict>
+		<key>README</key>
+		<dict>
+			<key>caret</key>
+			<dict>
+				<key>column</key>
+				<integer>49</integer>
+				<key>line</key>
+				<integer>7</integer>
+			</dict>
+			<key>columnSelection</key>
+			<false/>
+			<key>firstVisibleColumn</key>
+			<integer>0</integer>
+			<key>firstVisibleLine</key>
+			<integer>0</integer>
+			<key>selectFrom</key>
+			<dict>
+				<key>column</key>
+				<integer>1</integer>
+				<key>line</key>
+				<integer>7</integer>
+			</dict>
+			<key>selectTo</key>
+			<dict>
+				<key>column</key>
+				<integer>49</integer>
+				<key>line</key>
+				<integer>7</integer>
+			</dict>
+		</dict>
+		<key>avr/bootloader/bootloader.c</key>
+		<dict>
+			<key>caret</key>
+			<dict>
+				<key>column</key>
+				<integer>0</integer>
+				<key>line</key>
+				<integer>31</integer>
+			</dict>
+			<key>columnSelection</key>
+			<false/>
+			<key>firstVisibleColumn</key>
+			<integer>0</integer>
+			<key>firstVisibleLine</key>
+			<integer>0</integer>
+			<key>selectFrom</key>
+			<dict>
+				<key>column</key>
+				<integer>0</integer>
+				<key>line</key>
+				<integer>30</integer>
+			</dict>
+			<key>selectTo</key>
+			<dict>
+				<key>column</key>
+				<integer>0</integer>
+				<key>line</key>
+				<integer>31</integer>
+			</dict>
+		</dict>
+		<key>avr/bootloader/bootloader.hex</key>
+		<dict>
+			<key>caret</key>
+			<dict>
+				<key>column</key>
+				<integer>0</integer>
+				<key>line</key>
+				<integer>0</integer>
+			</dict>
+			<key>firstVisibleColumn</key>
+			<integer>0</integer>
+			<key>firstVisibleLine</key>
+			<integer>0</integer>
+		</dict>
+		<key>avr/bootloader/config.h</key>
+		<dict>
+			<key>caret</key>
+			<dict>
+				<key>column</key>
+				<integer>0</integer>
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+			<integer>0</integer>
+		</dict>
 		<key>snes/banktest/LoadGraphics.asm</key>
 		<dict>
 			<key>caret</key>
@@ -47,7 +825,114 @@
 			<key>firstVisibleLine</key>
 			<integer>211</integer>
 		</dict>
+		<key>tools/ucon64/2.0/src/backup/f2a.c</key>
+		<dict>
+			<key>caret</key>
+			<dict>
+				<key>column</key>
+				<integer>0</integer>
+				<key>line</key>
+				<integer>0</integer>
+			</dict>
+			<key>firstVisibleColumn</key>
+			<integer>0</integer>
+			<key>firstVisibleLine</key>
+			<integer>558</integer>
+		</dict>
+		<key>tools/ucon64/2.0/src/backup/fal.c</key>
+		<dict>
+			<key>caret</key>
+			<dict>
+				<key>column</key>
+				<integer>0</integer>
+				<key>line</key>
+				<integer>0</integer>
+			</dict>
+			<key>firstVisibleColumn</key>
+			<integer>0</integer>
+			<key>firstVisibleLine</key>
+			<integer>0</integer>
+		</dict>
+		<key>tools/ucon64/2.0/src/backup/snesram.h</key>
+		<dict>
+			<key>caret</key>
+			<dict>
+				<key>column</key>
+				<integer>38</integer>
+				<key>line</key>
+				<integer>70</integer>
+			</dict>
+			<key>firstVisibleColumn</key>
+			<integer>0</integer>
+			<key>firstVisibleLine</key>
+			<integer>30</integer>
+		</dict>
+		<key>tools/ucon64/2.0/src/console/snes.c</key>
+		<dict>
+			<key>caret</key>
+			<dict>
+				<key>column</key>
+				<integer>28</integer>
+				<key>line</key>
+				<integer>1135</integer>
+			</dict>
+			<key>firstVisibleColumn</key>
+			<integer>0</integer>
+			<key>firstVisibleLine</key>
+			<integer>1952</integer>
+		</dict>
 	</dict>
+	<key>openDocuments</key>
+	<array>
+		<string>avr/usbload/testing.h</string>
+		<string>avr/usbload/testing.c</string>
+		<string>avr/usbload/timer.c</string>
+		<string>avr/usbload/irq.c</string>
+		<string>avr/bootloader/bootloader.hex</string>
+		<string>avr/usbload/irq.h</string>
+		<string>avr/usbload/timer.h</string>
+		<string>avr/usbload/uart.c</string>
+		<string>avr/usbload/usb_bulk.c</string>
+		<string>avr/usbload/watchdog.c</string>
+		<string>avr/usbload/watchdog.h</string>
+		<string>poc/avr_sdcard/fat.c</string>
+		<string>poc/avr_sdcard/fat.h</string>
+		<string>poc/avr_sdcard/main.lst</string>
+		<string>avr/bootloader/config.h</string>
+		<string>avr/bootloader/bootloader.c</string>
+		<string>README</string>
+		<string>avr/bootloader/usbconfig.h</string>
+		<string>avr/usbload/debug.c</string>
+		<string>avr/usbload/dump.h</string>
+		<string>avr/usbload/crc.c</string>
+		<string>avr/usbload/command.h</string>
+		<string>avr/usbload/dump.c</string>
+		<string>avr/usbload/loader.h</string>
+		<string>avr/usbload/info.h</string>
+		<string>avr/usbload/loader.c</string>
+		<string>avr/usbload/fifo.c</string>
+		<string>avr/usbload/command.c</string>
+		<string>avr/usbload/debug.h</string>
+		<string>avr/usbload/rle.h</string>
+		<string>avr/usbload/config.h</string>
+		<string>tools/ucon64/2.0/src/console/snes.c</string>
+		<string>poc/avr_sdcard/main.c</string>
+		<string>poc/avr_usbload/sram.c</string>
+		<string>avr/usbload/sram.h</string>
+		<string>tools/ucon64/2.0/src/backup/snesram.h</string>
+		<string>avr/usbload/shared_memory.h</string>
+		<string>avr/usbload/checksize</string>
+		<string>avr/usbload/shared_memory.c</string>
+		<string>avr/bootloader/interrupts.S</string>
+		<string>avr/usbload/info.c</string>
+		<string>avr/usbload/fifo.h</string>
+		<string>avr/usbload/main.c</string>
+		<string>avr/usbload/sram.c</string>
+		<string>tools/ucon64/2.0/src/backup/fal.c</string>
+		<string>tools/ucon64/2.0/src/backup/f2a.c</string>
+		<string>avr/usbload/usbconfig.h</string>
+		<string>avr/usbload/crc.h</string>
+	</array>
 	<key>showFileHierarchyDrawer</key>
 	<false/>
 	<key>showFileHierarchyPanel</key>
@@ -66,6 +951,13 @@
 					<true/>
 					<key>subItems</key>
 					<dict>
+						<key>bootloader</key>
+						<dict>
+							<key>isExpanded</key>
+							<true/>
+							<key>subItems</key>
+							<dict/>
+						</dict>
 						<key>usbload</key>
 						<dict>
 							<key>isExpanded</key>
@@ -75,72 +967,6 @@
 						</dict>
 					</dict>
 				</dict>
-				<key>poc</key>
-				<dict>
-					<key>isExpanded</key>
-					<true/>
-					<key>subItems</key>
-					<dict>
-						<key>avr_sdcard</key>
-						<dict>
-							<key>isExpanded</key>
-							<true/>
-							<key>subItems</key>
-							<dict/>
-						</dict>
-					</dict>
-				</dict>
-				<key>scripts</key>
-				<dict>
-					<key>isExpanded</key>
-					<true/>
-					<key>subItems</key>
-					<dict/>
-				</dict>
-				<key>snes</key>
-				<dict>
-					<key>isExpanded</key>
-					<true/>
-					<key>subItems</key>
-					<dict/>
-				</dict>
-				<key>tools</key>
-				<dict>
-					<key>isExpanded</key>
-					<true/>
-					<key>subItems</key>
-					<dict>
-						<key>ff</key>
-						<dict>
-							<key>isExpanded</key>
-							<true/>
-							<key>subItems</key>
-							<dict/>
-						</dict>
-						<key>ffsample</key>
-						<dict>
-							<key>isExpanded</key>
-							<true/>
-							<key>subItems</key>
-							<dict>
-								<key>avr</key>
-								<dict>
-									<key>isExpanded</key>
-									<true/>
-									<key>subItems</key>
-									<dict/>
-								</dict>
-							</dict>
-						</dict>
-						<key>huffman</key>
-						<dict>
-							<key>isExpanded</key>
-							<true/>
-							<key>subItems</key>
-							<dict/>
-						</dict>
-					</dict>
-				</dict>
 			</dict>
 		</dict>
 	</dict>

snes/loadertest/Makefile

@@ -0,0 +1,77 @@
+# SDK Config
+
+
+PLATFORM=$(shell uname)
+
+ifeq ($(PLATFORM),Linux)
+    # Linux Wine 
+    SDK=/home/david/.wine/drive_c/65xx_FreeSDK
+    WINE=wine
+    EMU=../../tools/bsnes/bsnes
+    DISASM=/home/david/Devel/arch/snes/devkit/bin/disasm
+    UCON=ucon64
+else
+    # Mac Wine 
+    SDK=/Users/david/.wine/drive_c/65xx_FreeSDK
+    WINE=wine
+    EMU=zsnes
+    DISASM=/Users/david/Devel/arch/snes/devkit/bin/disasm
+    UCON=ucon64
+endif
+
+CC=$(WINE) $(SDK)/bin/WDC816CC.exe
+AS=$(WINE) $(SDK)/bin/WDC816AS.exe
+LD=$(WINE) $(SDK)/bin/WDCLN.exe
+PADBIN=$(WINE)  tools/padbin.exe
+
+# Project
+
+INC=$(SDK)/include
+LIBS=-L$(SDK)/lib/cc 
+#-L$(SDK)/lib/c134
+
+
+OBJS=StartupSnes.obj main.obj pad.obj PPU.obj debug.obj ressource.obj
+APP=loadertest.smc
+GFX=debugfont
+
+all:  $(APP) 
+
+run:
+	$(EMU) $(APP)
+
+
+disasm: $(APP)
+	rm -rf  $(APP)
+	$(DISASM) $(APP) >  $(APP).asm
+
+upload: header
+	ucon64 --port=usb --xsnesram $(APP)
+
+repair: $(APP)
+	$(UCON) -snes -chk $(APP) 2>&1 >/dev/null
+	rm -rf *.bak
+
+header: $(APP)
+	$(UCON) -smc  $(APP) 
+	rm -rf *.bak
+
+StartupSnes.obj: StartupSnes.asm
+	$(AS) -V $?
+
+ressource.obj: ressource.asm
+	$(AS) -V $?
+
+%.obj: %.c
+	$(CC)  -wl -wp -sop -MC -I $(INC) $?
+
+$(APP): $(OBJS) 
+	$(LD) -B -HB -M21 -V -T -Pff \
+        -C008000,0000 -U0000,0000 \
+        -Avectors=FFE4,7FE4 \
+        -Aregistration_data=FFB0,7FB0 \
+        -Aressource=18000,8000 \
+        -N $(OBJS) $(LIBS) -O $@
+	$(PADBIN) 0x20000 $(APP)
+clean:
+	rm -vf $(APP) *.obj *.TMP

snes/loadertest/PPU.c

@@ -0,0 +1,90 @@
+#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;
+}

snes/loadertest/PPU.h

@@ -0,0 +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);

snes/loadertest/StartupSnes.asm

@@ -0,0 +1,240 @@
+; SNES ROM startup code 
+
+;******************************************************************************
+;*** Define a special section in case most of the code is not in bank 0.    ***
+;******************************************************************************
+
+;STACK   EQU   $01ff     ;CHANGE THIS FOR YOUR SYSTEM
+
+;STARTUP SECTION OFFSET $008000
+
+CODE
+
+	XDEF  	START
+START:
+        XREF  	_~main
+  	
+	sei             ; Disabled interrupts
+        clc             ; clear carry to switch to native mode
+        xce             ; Xchange carry & emulation bit. native mode
+        rep     #$18    ; Binary mode (decimal mode off), X/Y 16 bit
+	LONGI	ON
+        ldx     #$1FFF  ; set stack to $1FFF
+        txs
+
+	rep 	#$30
+	longa	on
+	longi	on
+
+	; Init data used for heap 
+	; see heap definition below
+	XREF _~_heap_top
+	XREF _~_mem_start
+	stz	_~_heap_top
+	stz	_~_mem_start
+	
+	XREF	_~preInit
+        jsr   	>_~preInit
+
+        sep     #$30    ; X,Y,A are 8 bit numbers
+	LONGA	OFF
+	LONGI	OFF	
+        lda     #$8F    ; screen off, full brightness
+        sta     $2100   ; brightness + screen enable register 
+        stz     $2101   ; Sprite register (size + address in VRAM) 
+        stz     $2102   ; Sprite registers (address of sprite memory [OAM])
+        stz     $2103   ;    ""                       ""
+        stz     $2105   ; Mode 0, = Graphic mode register
+        stz     $2106   ; noplanes, no mosaic, = Mosaic register
+        stz     $2107   ; Plane 0 map VRAM location
+        stz     $2108   ; Plane 1 map VRAM location
+        stz     $2109   ; Plane 2 map VRAM location
+        stz     $210A   ; Plane 3 map VRAM location
+        stz     $210B   ; Plane 0+1 Tile data location
+        stz     $210C   ; Plane 2+3 Tile data location
+        stz     $210D   ; Plane 0 scroll x (first 8 bits)
+        stz     $210D   ; Plane 0 scroll x (last 3 bits) #$0 - #$07ff
+        stz     $210E   ; Plane 0 scroll y (first 8 bits)
+        stz     $210E   ; Plane 0 scroll y (last 3 bits) #$0 - #$07ff
+        stz     $210F   ; Plane 1 scroll x (first 8 bits)
+        stz     $210F   ; Plane 1 scroll x (last 3 bits) #$0 - #$07ff
+        stz     $2110   ; Plane 1 scroll y (first 8 bits)
+        stz     $2110   ; Plane 1 scroll y (last 3 bits) #$0 - #$07ff
+        stz     $2111   ; Plane 2 scroll x (first 8 bits)
+        stz     $2111   ; Plane 2 scroll x (last 3 bits) #$0 - #$07ff
+        stz     $2112   ; Plane 2 scroll y (first 8 bits)
+        stz     $2112   ; Plane 2 scroll y (last 3 bits) #$0 - #$07ff
+        stz     $2113   ; Plane 3 scroll x (first 8 bits)
+        stz     $2113   ; Plane 3 scroll x (last 3 bits) #$0 - #$07ff
+        stz     $2114   ; Plane 3 scroll y (first 8 bits)
+        stz     $2114   ; Plane 3 scroll y (last 3 bits) #$0 - #$07ff
+        lda     #$80    ; increase VRAM address after writing to $2119
+        sta     $2115   ; VRAM address increment register
+        stz     $2116   ; VRAM address low
+        stz     $2117   ; VRAM address high
+        stz     $211A   ; Initial Mode 7 setting register
+        stz     $211B   ; Mode 7 matrix parameter A register (low)
+        lda     #$01
+        sta     $211B   ; Mode 7 matrix parameter A register (high)
+        stz     $211C   ; Mode 7 matrix parameter B register (low)
+        stz     $211C   ; Mode 7 matrix parameter B register (high)
+        stz     $211D   ; Mode 7 matrix parameter C register (low)
+        stz     $211D   ; Mode 7 matrix parameter C register (high)
+        stz     $211E   ; Mode 7 matrix parameter D register (low)
+        sta     $211E   ; Mode 7 matrix parameter D register (high)
+        stz     $211F   ; Mode 7 center position X register (low)
+        stz     $211F   ; Mode 7 center position X register (high)
+        stz     $2120   ; Mode 7 center position Y register (low)
+        stz     $2120   ; Mode 7 center position Y register (high)
+        stz     $2121   ; Color number register ($0-ff)
+        stz     $2123   ; BG1 & BG2 Window mask setting register
+        stz     $2124   ; BG3 & BG4 Window mask setting register
+        stz     $2125   ; OBJ & Color Window mask setting register
+        stz     $2126   ; Window 1 left position register
+        stz     $2127   ; Window 2 left position register
+        stz     $2128   ; Window 3 left position register
+        stz     $2129   ; Window 4 left position register
+        stz     $212A   ; BG1, BG2, BG3, BG4 Window Logic register
+        stz     $212B   ; OBJ, Color Window Logic Register (or,and,xor,xnor)
+        sta     $212C   ; Main Screen designation (planes, sprites enable)
+        stz     $212D   ; Sub Screen designation
+        stz     $212E   ; Window mask for Main Screen
+        stz     $212F   ; Window mask for Sub Screen
+        lda     #$30
+        sta     $2130   ; Color addition & screen addition init setting
+        stz     $2131   ; Add/Sub sub designation for screen, sprite, color
+        lda     #$E0
+        sta     $2132   ; color data for addition/subtraction
+        stz     $2133   ; Screen setting (interlace x,y/enable SFX data)
+        stz     $4200   ; Enable V-blank, interrupt, Joypad register
+        lda     #$FF
+        sta     $4201   ; Programmable I/O port
+        stz     $4202   ; Multiplicand A
+        stz     $4203   ; Multiplier B
+        stz     $4204   ; Multiplier C
+        stz     $4205   ; Multiplicand C
+        stz     $4206   ; Divisor B
+        stz     $4207   ; Horizontal Count Timer
+        stz     $4208   ; Horizontal Count Timer MSB (most significant bit)
+    stz     $4209   ; Vertical Count Timer
+    stz     $420A   ; Vertical Count Timer MSB
+    stz     $420B   ; General DMA enable (bits 0-7)
+    stz     $420C   ; Horizontal DMA (HDMA) enable (bits 0-7)
+    stz     $420D   ; Access cycle designation (slow/fast rom)
+    cli             ; Enable interrupts
+
+	rep     #$30
+	longa	on
+	longi	on
+
+    jsr   	>_~main
+    brk
+
+	XDEF IRQ
+IRQ:	
+	XREF _~IRQHandler
+	LONGA	ON
+	LONGI	ON
+	rep	#$30
+	pha
+	phx
+	phy
+	jsr	_~IRQHandler
+	ply
+	plx
+	pla
+	rti
+	
+	XDEF	NMI
+NMI:
+	XREF	_~NMIHandler
+	LONGA	ON
+	LONGI	ON
+	rep	#$30
+	pha
+	phx
+	phy
+	phd
+	phb
+	lda	#$0000
+	sep     #$30    ; X,Y,A are 8 bit numbers
+	LONGA	OFF
+	LONGI	OFF
+	lda     $4210		; Read NMI 
+	LONGA	ON
+	LONGI	ON
+	rep	#$30
+	jsr	_~NMIHandler
+	plb
+	pld
+	ply
+	plx
+	pla
+	rti
+  
+DIRQ:
+	rti
+
+ENDS
+
+;******************************************************************************
+;*** Heap definition                                                        ***
+;******************************************************************************
+
+DATA
+
+	XDEF	_~heap_start
+	XDEF	_~heap_end
+
+_~heap_start:
+	WORD	$1000
+_~heap_end:
+	WORD	$1200
+
+;******************************************************************************
+;*** SNES ROM Registartion Data                                             ***
+;******************************************************************************
+
+REGISTRATION_DATA SECTION
+
+MAKER_CODE          FCC	/FF/
+GAME_CODE		    FCC	/SMWJ/
+FIXED_VALUE0		BYTE	$00, $00, $00, $00, $00, $00, $00
+EXPANSION_RAM_SIZE	BYTE	$00
+SPECIAL_VERSION		BYTE	$00
+CARTRIDGE_TYPE_SUB	BYTE	$00
+GAME_TITLE		    FCC	/GAME TITLE          !/
+				        ;012345678901234567890;
+MAP_MODE            BYTE	$20
+CARTRIDGE_SIZE		BYTE	$00
+ROM_SIZE            BYTE	$09
+RAM_SIZE            BYTE	$00
+DESTINATION_CODE	BYTE	$00
+FIXED_VALUE1		BYTE	$33
+MASK_ROM_VERSION	BYTE	$00
+COMPLEMENT_CHECK	BYTE	$00, $00
+CHEKSUM             BYTE	$00, $00 
+
+;******************************************************************************
+;*** SNES Interrupts and Reset vector                                       ***
+;******************************************************************************
+
+VECTORS	SECTION
+; Native vector
+N_COP   DW   DIRQ
+N_BRK   DW   DIRQ
+N_ABORT DW   DIRQ        
+N_NMI   DW   NMI
+N_RSRVD DW   DIRQ
+N_IRQ   DW   IRQ
+        DS   4
+; Emulation vector
+E_COP   DW   DIRQ
+E_RSRVD DW   DIRQ
+E_ABORT DW   DIRQ
+E_NMI   DW   DIRQ
+E_RESET DW   START
+E_IRQ   DW   DIRQ
+
+END
+

snes/loadertest/crc.c

@@ -0,0 +1,37 @@
+#include "data.h"
+
+
+word crc_update(char far * data, word size)
+{
+    word i;
+    word j;
+    word crc = 0;
+    for (j = 0; j < size; j++) {
+        crc = crc ^ ((word) data[j] << 8);
+        for (i = 0; i < 8; i++) {
+            if (crc & 0x8000)
+                crc = (crc << 1) ^ 0x1021;
+            else
+                crc <<= 1;
+        }
+    }
+    return crc;
+}
+
+
+word crc_update_mem(unsigned long addr, word size)
+{
+    word i;
+    word j;
+    word crc = 0;
+    for (j = 0; j < size; j++) {
+        crc = crc ^ ((word) * (byte *) (addr + j) << 8);
+        for (i = 0; i < 8; i++) {
+            if (crc & 0x8000)
+                crc = (crc << 1) ^ 0x1021;
+            else
+                crc <<= 1;
+        }
+    }
+    return crc;
+}

snes/loadertest/crc.h

@@ -0,0 +1,3 @@
+
+word crc_update(byte * data, word size);
+word crc_update_mem(unsigned long, word size);

snes/loadertest/data.h

@@ -0,0 +1,8 @@
+
+#ifndef _DATA
+
+typedef unsigned char byte;
+typedef unsigned short word;
+
+#define _DATA
+#endif

snes/loadertest/debug.c

@@ -0,0 +1,224 @@
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+#include "debug.h"
+#include "data.h"
+#include "pad.h"
+#include "PPU.h"
+#include "ressource.h"
+
+
+
+#define DEBUG_BUFFER_SIZE 128
+
+word debugMap[0x400];
+char debug_buffer[DEBUG_BUFFER_SIZE];
+char screen_buffer[DEBUG_BUFFER_SIZE];
+
+
+void debug_init(void)
+{
+    word i;
+    for (i = 0; i < 0x400; i++) {
+        debugMap[i] = 0x00;
+    }
+    memset(debug_buffer, 0, DEBUG_BUFFER_SIZE);
+    memset(screen_buffer, 0,DEBUG_BUFFER_SIZE);
+}
+
+
+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
+
+    // Font Color
+    // hex(24 << 10 | 24 << 5 | 24 ) = '0x6318'
+    *(byte *) 0x2121 = 0x02;
+    *(byte *) 0x2122 = 0xff;
+    *(byte *) 0x2122 = 0x7f;
+
+    // Font Border Color
+    *(byte *) 0x2121 = 0x00;
+    *(byte *) 0x2122 = 0x00;
+    *(byte *) 0x2122 = 0x00;
+
+    // Background Color
+    *(byte *) 0x2121 = 0x01;
+    *(byte *) 0x2122 = 0x05;
+    *(byte *) 0x2122 = 0x29;
+
+
+}
+
+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;
+    unsigned int x; 
+    x = y * 0x20;
+    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 += 0x20;
+            buffer++;
+            waitForVBlank();
+            continue;
+        }
+        *(byte *) 0x2115 = 0x80;
+        *(word *) 0x2116 = 0x4000 + x;
+        *(byte *) 0x2118 = *buffer - 32;
+        x++;
+        buffer++;
+#if 1
+        waitForVBlank();
+#endif
+    }
+}
+void _print_console(const char *buffer)
+{
+    while (*buffer)
+        *(byte *) 0x3000 = *buffer++;
+}
+
+
+
+
+void printfc(const 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,DEBUG_BUFFER_SIZE);
+
+}
+
+void printfs(word y, const 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, DEBUG_BUFFER_SIZE);
+}
+
+void printc_packet(unsigned long addr, unsigned int len, byte * packet)
+{
+    unsigned int i, j;
+    unsigned int sum = 0;
+    unsigned int last_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 (last_sum == sum) {
+            clear = 1;
+            continue;
+        }
+        
+        if (clear) {
+            printfc("*\n");
+            clear = 0;
+        }
+        printfc("%06lX:", addr + i);
+        for (j = 0; j < 16; j++) {
+            printfc(" %02x", 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");
+        last_sum = sum;
+    }
+}
+/*
+ * 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;
+}

snes/loadertest/debug.h

@@ -0,0 +1,8 @@
+#include "data.h"
+
+void debug_init(void);
+void debug_enable(void);
+void printfs(word y, const char *fmt, ...);
+void printfc(const char *fmt, ...);
+void clears(void);
+void printc_packet(unsigned long addr, unsigned int len, byte * packet);

snes/loadertest/event.c

@@ -0,0 +1,106 @@
+#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;
+    }
+
+}

snes/loadertest/event.h

@@ -0,0 +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);

snes/loadertest/integer.h

@@ -0,0 +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

snes/loadertest/main.c

@@ -0,0 +1,93 @@
+
+#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 "integer.h"
+
+
+
+typedef void (*FUNC) (void);
+
+padStatus pad1;
+
+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
+} 
+
+void halt(void)
+{
+    while (1);
+}
+
+void wait(void)
+{
+    printfc("SNES::wait: press A to continue\n");
+    enablePad();
+    pad1 = readPad((byte) 0);
+    while (!pad1.A) {
+        waitForVBlank();
+        pad1 = readPad((byte) 0);
+    }
+    printfc("SNES::wait: done\n");
+}
+
+void boot(DWORD addr)
+{
+    FUNC fn;
+    //printfc("SNES::boot addr=%lx\n", addr);
+    fn = (FUNC) addr;
+    fn();
+
+} 
+
+unsigned char i;
+unsigned char j;
+
+void main(void)
+{
+    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();
+    i=0;
+    j=0;
+    while (1) {
+        printfs(0,"IRQ COUNT  %i", i);
+        printfs(1,"NMI COUNT  %i", j++);
+        waitForVBlank();
+    }
+}
+
+void IRQHandler(void)
+{
+    i = i + 1;
+}
+
+void NMIHandler(void)
+{
+
+    // processEvents();
+}

snes/loadertest/myEvents.c

@@ -0,0 +1,103 @@
+#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;
+}

snes/loadertest/myEvents.h

@@ -0,0 +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);

snes/loadertest/pad.c

@@ -0,0 +1,26 @@
+#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;
+}

snes/loadertest/pad.h

@@ -0,0 +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);

snes/loadertest/ressource.asm

@@ -0,0 +1,9 @@
+ressource .section
+
+
+	XDEF _~debugFont_pic
+_~debugFont_pic
+	INSERT ressource/debugFont.pic
+
+
+.ends

snes/loadertest/ressource.h

@@ -0,0 +1,2 @@
+
+extern word debugFont_pic[];

snes/quickdevloader/conv_rle.py

@@ -0,0 +1,36 @@
+import binascii
+data = open("rom.smc","r").read()
+data = binascii.rlecode_hqx(data)
+
+cfile = open("loader.c","w")
+hfile = open("loader.h","w")
+
+hfile.write('''
+#ifndef __FIFO_H__
+#define __FIFO_H__
+
+#define ROM_SIZE %i
+
+#endif
+''' % len(data))
+
+cfile.write('''
+
+#include <avr/pgmspace.h>       
+#include <loader.h>       
+
+const char _rom[ROM_SIZE] PROGMEM = {
+''')
+
+for idx,c in enumerate(data):
+    c = ord(c)
+    if idx<len(data)-1:
+        cfile.write("0x%02x," % c)
+    else:
+        cfile.write("0x%02x" % c)
+    if idx and idx%16==0:
+        cfile.write("\n")
+cfile.write('''
+};
+''')
+cfile.close()

snes/quickdevloader/loader.h

@@ -0,0 +1,7 @@
+
+#ifndef __FIFO_H__
+#define __FIFO_H__
+
+#define ROM_SIZE 30346
+
+#endif

snes/quickdevloader/makefile

@@ -0,0 +1,24 @@
+# 65816 stuff
+AC = wla-65816
+AFLAGS = -o
+LD = wlalink
+LDFLAGS = -vsr
+FL = snesflash
+FLFLAGS = -wf
+UCON = ucon64
+UCONFLAGS = --port=usb --xsnesram
+SFILES  = main.asm
+OFILES  = $(SFILES:.asm=.o)
+ROMFILE = main.smc
+EMU = zsnes
+# spc stuff
+SPCAC = wla-spc700
+SPCSFILES  = data/apu/apucode.asm
+SPCOFILES  = $(SPCSFILES:.asm=.o)
+SPCFILE = $(SPCSFILES:.asm=.bin)
+
+
+all: 
+	mv -v  main.smc main.smc.last
+	wget http://dforce3000.de/main.smc 
+	python ../../scripts/conv_rle.py main.smc

todo.sh

@@ -0,0 +1,957 @@
+#! /bin/bash
+
+# NOTE:  Todo.sh requires the .todo/config configuration file to run.
+# Place the .todo/config file in your home directory or use the -d option for a custom location.
+
+# Your todo/done/report.txt locations
+export TODO_DIR=$(pwd)
+export TODO_FILE="$TODO_DIR/todo.txt"
+export DONE_FILE="$TODO_DIR/done.txt"
+export REPORT_FILE="$TODO_DIR/report.txt"
+export TMP_FILE="$TODO_DIR/todo.tmp"
+
+[ -f VERSION-FILE ] && . VERSION-FILE || VERSION="@DEV_VERSION@"
+version() { sed -e 's/^    //' <<EndVersion
+        TODO.TXT Command Line Interface v$VERSION
+        
+        First release: 5/11/2006
+        Original conception by: Gina Trapani (http://ginatrapani.org)
+        Contributors: http://github.com/ginatrapani/todo.txt-cli/network
+        License: GPL, http://www.gnu.org/copyleft/gpl.html
+        More information and mailing list at http://todotxt.com
+        Code repository: http://github.com/ginatrapani/todo.txt-cli/tree/master
+EndVersion
+    exit 1
+}
+
+# Set script name early.
+TODO_SH=$(basename "$0")
+export TODO_SH
+
+oneline_usage="$TODO_SH [-fhpantvV] [-d todo_config] action [task_number] [task_description]"
+
+usage()
+{
+    sed -e 's/^    //' <<EndUsage
+    Usage: $oneline_usage
+    Try '$TODO_SH -h' for more information.
+EndUsage
+    exit 1
+}
+
+shorthelp()
+{
+    sed -e 's/^    //' <<EndHelp
+      Usage: $oneline_usage
+
+      Actions:
+        add|a "THING I NEED TO DO +project @context"
+        addto DEST "TEXT TO ADD"
+        append|app NUMBER "TEXT TO APPEND"
+        archive
+        command [ACTIONS]
+        del|rm NUMBER [TERM]
+        dp|depri NUMBER
+        do NUMBER
+        help
+        list|ls [TERM...]
+        listall|lsa [TERM...]
+        listcon|lsc
+        listfile|lf SRC [TERM...]
+        listpri|lsp [PRIORITY]
+        listproj|lsprj
+        move|mv NUMBER DEST [SRC]
+        prepend|prep NUMBER "TEXT TO PREPEND"
+        pri|p NUMBER PRIORITY
+        replace NUMBER "UPDATED TODO"
+        report
+
+      See "help" for more details.
+EndHelp
+    exit 0
+}
+
+help()
+{
+    sed -e 's/^    //' <<EndHelp
+      Usage: $oneline_usage
+
+      Actions:
+        add "THING I NEED TO DO +project @context"
+        a "THING I NEED TO DO +project @context"
+          Adds THING I NEED TO DO to your todo.txt file on its own line.
+          Project and context notation optional.
+          Quotes optional.
+
+        addto DEST "TEXT TO ADD"
+          Adds a line of text to any file located in the todo.txt directory.
+          For example, addto inbox.txt "decide about vacation"
+
+        append NUMBER "TEXT TO APPEND"
+        app NUMBER "TEXT TO APPEND"
+          Adds TEXT TO APPEND to the end of the todo on line NUMBER.
+          Quotes optional.
+
+        archive
+          Moves done items from todo.txt to done.txt and removes blank lines.
+
+        command [ACTIONS]
+          Runs the remaining arguments using only todo.sh builtins.
+          Will not call any .todo.actions.d scripts.
+
+        del NUMBER [TERM]
+        rm NUMBER [TERM]
+          Deletes the item on line NUMBER in todo.txt.
+          If term specified, deletes only the term from the line.
+
+        depri NUMBER
+        dp NUMBER
+          Deprioritizes (removes the priority) from the item
+          on line NUMBER in todo.txt.
+
+        do NUMBER[, NUMBER, NUMBER, ...]
+          Marks item(s) on line NUMBER as done in todo.txt.
+
+        help
+          Display this help message.
+
+        list [TERM...]
+        ls [TERM...]
+          Displays all todo's that contain TERM(s) sorted by priority with line
+          numbers.  If no TERM specified, lists entire todo.txt.
+
+        listall [TERM...]
+        lsa [TERM...]
+          Displays all the lines in todo.txt AND done.txt that contain TERM(s)
+          sorted by priority with line  numbers.  If no TERM specified, lists
+          entire todo.txt AND done.txt concatenated and sorted.
+
+        listcon
+        lsc
+          Lists all the task contexts that start with the @ sign in todo.txt.
+
+        listfile SRC [TERM...]
+        lf SRC [TERM...]
+          Displays all the lines in SRC file located in the todo.txt directory,
+          sorted by priority with line  numbers.  If TERM specified, lists
+          all lines that contain TERM in SRC file.
+
+        listpri [PRIORITY]
+        lsp [PRIORITY]
+          Displays all items prioritized PRIORITY.
+          If no PRIORITY specified, lists all prioritized items.
+
+        listproj
+        lsprj
+          Lists all the projects that start with the + sign in todo.txt.
+
+        move NUMBER DEST [SRC]
+        mv NUMBER DEST [SRC]
+          Moves a line from source text file (SRC) to destination text file (DEST).
+          Both source and destination file must be located in the directory defined
+          in the configuration directory.  When SRC is not defined
+          it's by default todo.txt.
+
+        prepend NUMBER "TEXT TO PREPEND"
+        prep NUMBER "TEXT TO PREPEND"
+          Adds TEXT TO PREPEND to the beginning of the todo on line NUMBER.
+          Quotes optional.
+
+        pri NUMBER PRIORITY
+        p NUMBER PRIORITY
+          Adds PRIORITY to todo on line NUMBER.  If the item is already
+          prioritized, replaces current priority with new PRIORITY.
+          PRIORITY must be an uppercase letter between A and Z.
+
+        replace NUMBER "UPDATED TODO"
+          Replaces todo on line NUMBER with UPDATED TODO.
+
+        report
+          Adds the number of open todo's and closed done's to report.txt.
+
+
+
+      Options:
+        -@
+            Hide context names in list output. Use twice to show context
+            names (default).
+        -+
+            Hide project names in list output. Use twice to show project
+            names (default).
+        -d CONFIG_FILE
+            Use a configuration file other than the default ~/.todo/config
+        -f
+            Forces actions without confirmation or interactive input
+        -h
+            Display a short help message
+        -p
+            Plain mode turns off colors
+        -P
+            Hide priority labels in list output. Use twice to show
+            priority labels (default).
+        -a
+            Don't auto-archive tasks automatically on completion
+        -n
+            Don't preserve line numbers; automatically remove blank lines
+            on task deletion
+        -t
+            Prepend the current date to a task automatically
+            when it's added.
+        -v
+            Verbose mode turns on confirmation messages
+        -vv
+            Extra verbose mode prints some debugging information
+        -V
+            Displays version, license and credits
+
+
+      Environment variables:
+        TODOTXT_AUTO_ARCHIVE=0          is same as option -a
+        TODOTXT_CFG_FILE=CONFIG_FILE    is same as option -d CONFIG_FILE
+        TODOTXT_FORCE=1                 is same as option -f
+        TODOTXT_PRESERVE_LINE_NUMBERS=0 is same as option -n
+        TODOTXT_PLAIN=1                 is same as option -p
+        TODOTXT_DATE_ON_ADD=1           is same as option -t
+        TODOTXT_VERBOSE=1               is same as option -v
+        TODOTXT_DEFAULT_ACTION=""       run this when called with no arguments
+        TODOTXT_SORT_COMMAND="sort ..." customize list output
+        TODOTXT_FINAL_FILTER="sed ..."  customize list after color, P@+ hiding
+EndHelp
+
+    if [ -d "$TODO_ACTIONS_DIR" ]
+    then
+        echo ""
+        for action in "$TODO_ACTIONS_DIR"/*
+        do
+            if [ -x "$action" ]
+            then
+                "$action" usage
+            fi
+        done
+        echo ""
+    fi
+
+
+    exit 1
+}
+
+die()
+{
+    echo "$*"
+    exit 1
+}
+
+cleanup()
+{
+    [ -f "$TMP_FILE" ] && rm "$TMP_FILE"
+    exit 0
+}
+
+archive()
+{
+    #defragment blank lines
+    sed -i.bak -e '/./!d' "$TODO_FILE"
+    [ $TODOTXT_VERBOSE -gt 0 ] && grep "^x " "$TODO_FILE"
+    grep "^x " "$TODO_FILE" >> "$DONE_FILE"
+    sed -i.bak '/^x /d' "$TODO_FILE"
+    cp "$TODO_FILE" "$TMP_FILE"
+    sed -n 'G; s/\n/&&/; /^\([ ~-]*\n\).*\n\1/d; s/\n//; h; P' "$TMP_FILE" > "$TODO_FILE"
+    #[[ $TODOTXT_VERBOSE -gt 0 ]] && echo "TODO: Duplicate tasks have been removed."
+    [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: $TODO_FILE archived."
+    cleanup
+}
+
+
+# == PROCESS OPTIONS ==
+while getopts ":fhpnatvV+@Pd:" Option
+do
+  case $Option in
+    '@' )
+        ## HIDE_CONTEXT_NAMES starts at zero (false); increment it to one
+        ##   (true) the first time this flag is seen. Each time the flag
+        ##   is seen after that, increment it again so that an even
+        ##   number hides project names and an odd number shows project
+        ##   names.
+        : $(( HIDE_CONTEXT_NAMES++ ))
+        if [ $(( $HIDE_CONTEXT_NAMES % 2 )) -eq 0 ]
+        then
+            ## Zero or even value -- show context names
+            unset HIDE_CONTEXTS_SUBSTITUTION
+        else
+            ## One or odd value -- hide context names
+            export HIDE_CONTEXTS_SUBSTITUTION='[[:space:]]@[^[:space:]]\{1,\}'
+        fi
+        ;;
+    '+' )
+        ## HIDE_PROJECT_NAMES starts at zero (false); increment it to one
+        ##   (true) the first time this flag is seen. Each time the flag
+        ##   is seen after that, increment it again so that an even
+        ##   number hides project names and an odd number shows project
+        ##   names.
+        : $(( HIDE_PROJECT_NAMES++ ))
+        if [ $(( $HIDE_PROJECT_NAMES % 2 )) -eq 0 ]
+        then
+            ## Zero or even value -- show project names
+            unset HIDE_PROJECTS_SUBSTITUTION
+        else
+            ## One or odd value -- hide project names
+            export HIDE_PROJECTS_SUBSTITUTION='[[:space:]][+][^[:space:]]\{1,\}'
+        fi
+        ;;
+    a )
+        TODOTXT_AUTO_ARCHIVE=0
+        ;;
+    d )
+        TODOTXT_CFG_FILE=$OPTARG
+        ;;
+    f )
+        TODOTXT_FORCE=1
+        ;;
+    h )
+        shorthelp
+        ;;
+    n )
+        TODOTXT_PRESERVE_LINE_NUMBERS=0
+        ;;
+    p )
+        TODOTXT_PLAIN=1
+        ;;
+    P )
+        ## HIDE_PRIORITY_LABELS starts at zero (false); increment it to one
+        ##   (true) the first time this flag is seen. Each time the flag
+        ##   is seen after that, increment it again so that an even
+        ##   number hides project names and an odd number shows project
+        ##   names.
+        : $(( HIDE_PRIORITY_LABELS++ ))
+        if [ $(( $HIDE_PRIORITY_LABELS % 2 )) -eq 0 ]
+        then
+            ## Zero or even value -- show priority labels
+            unset HIDE_PRIORITY_SUBSTITUTION
+        else
+            ## One or odd value -- hide priority labels
+            export HIDE_PRIORITY_SUBSTITUTION="([A-Z])[[:space:]]"
+        fi
+        ;;
+    t )
+        TODOTXT_DATE_ON_ADD=1
+        ;;
+    v )
+        : $(( TODOTXT_VERBOSE++ ))
+        ;;
+    V )
+        version
+        ;;
+  esac
+done
+shift $(($OPTIND - 1))
+
+# defaults if not yet defined
+TODOTXT_VERBOSE=${TODOTXT_VERBOSE:-1}
+TODOTXT_PLAIN=${TODOTXT_PLAIN:-0}
+TODOTXT_CFG_FILE=${TODOTXT_CFG_FILE:-$HOME/.todo/config}
+TODOTXT_FORCE=${TODOTXT_FORCE:-0}
+TODOTXT_PRESERVE_LINE_NUMBERS=${TODOTXT_PRESERVE_LINE_NUMBERS:-1}
+TODOTXT_AUTO_ARCHIVE=${TODOTXT_AUTO_ARCHIVE:-1}
+TODOTXT_DATE_ON_ADD=${TODOTXT_DATE_ON_ADD:-0}
+TODOTXT_DEFAULT_ACTION=${TODOTXT_DEFAULT_ACTION:-}
+TODOTXT_SORT_COMMAND=${TODOTXT_SORT_COMMAND:-env LC_COLLATE=C sort -f -k2}
+TODOTXT_FINAL_FILTER=${TODOTXT_FINAL_FILTER:-cat}
+
+# Export all TODOTXT_* variables
+export ${!TODOTXT_@}
+
+# Default color map
+export NONE=''
+export BLACK='\\033[0;30m'
+export RED='\\033[0;31m'
+export GREEN='\\033[0;32m'
+export BROWN='\\033[0;33m'
+export BLUE='\\033[0;34m'
+export PURPLE='\\033[0;35m'
+export CYAN='\\033[0;36m'
+export LIGHT_GREY='\\033[0;37m'
+export DARK_GREY='\\033[1;30m'
+export LIGHT_RED='\\033[1;31m'
+export LIGHT_GREEN='\\033[1;32m'
+export YELLOW='\\033[1;33m'
+export LIGHT_BLUE='\\033[1;34m'
+export LIGHT_PURPLE='\\033[1;35m'
+export LIGHT_CYAN='\\033[1;36m'
+export WHITE='\\033[1;37m'
+export DEFAULT='\\033[0m'
+
+# Default priority->color map.
+export PRI_A=$YELLOW        # color for A priority
+export PRI_B=$GREEN         # color for B priority
+export PRI_C=$LIGHT_BLUE    # color for C priority
+export PRI_X=$WHITE         # color for rest of them
+
+[ -e "$TODOTXT_CFG_FILE" ] || {
+    CFG_FILE_ALT="$HOME/todo.cfg"
+
+    if [ -e "$CFG_FILE_ALT" ]
+    then
+        TODOTXT_CFG_FILE="$CFG_FILE_ALT"
+    fi
+}
+
+[ -e "$TODOTXT_CFG_FILE" ] || {
+    CFG_FILE_ALT="$HOME/.todo.cfg"
+
+    if [ -e "$CFG_FILE_ALT" ]
+    then
+        TODOTXT_CFG_FILE="$CFG_FILE_ALT"
+    fi
+}
+
+if [ -z "$TODO_ACTIONS_DIR" -o ! -d "$TODO_ACTIONS_DIR" ]
+then
+    TODO_ACTIONS_DIR="$HOME/.todo/actions"
+    export TODO_ACTIONS_DIR
+fi
+
+[ -d "$TODO_ACTIONS_DIR" ] || {
+    TODO_ACTIONS_DIR_ALT="$HOME/.todo.actions.d"
+
+    if [ -d "$TODO_ACTIONS_DIR_ALT" ]
+    then
+        TODO_ACTIONS_DIR="$TODO_ACTIONS_DIR_ALT"
+    fi
+}
+
+# === SANITY CHECKS (thanks Karl!) ===
+#[ -r "$TODOTXT_CFG_FILE" ] || die "Fatal error: Cannot read configuration file $TODOTXT_CFG_FILE"
+
+#. "$TODOTXT_CFG_FILE"
+
+ACTION=${1:-$TODOTXT_DEFAULT_ACTION}
+
+[ -z "$ACTION" ]    && usage
+[ -d "$TODO_DIR" ]  || die "Fatal Error: $TODO_DIR is not a directory"
+( cd "$TODO_DIR" )  || die "Fatal Error: Unable to cd to $TODO_DIR"
+
+[ -w "$TMP_FILE"  ] || echo -n > "$TMP_FILE" || die "Fatal Error: Unable to write to $TMP_FILE"
+[ -f "$TODO_FILE" ] || cp /dev/null "$TODO_FILE"
+[ -f "$DONE_FILE" ] || cp /dev/null "$DONE_FILE"
+[ -f "$REPORT_FILE" ] || cp /dev/null "$REPORT_FILE"
+
+if [ $TODOTXT_PLAIN = 1 ]; then
+    PRI_A=$NONE
+    PRI_B=$NONE
+    PRI_C=$NONE
+    PRI_X=$NONE
+    DEFAULT=$NONE
+fi
+
+# === HEAVY LIFTING ===
+shopt -s extglob
+
+_list() {
+    local FILE="$1"
+    ## If the file starts with a "/" use absolute path. Otherwise,
+    ## try to find it in either $TODO_DIR or using a relative path
+    if [ "${1:0:1}" == / ]
+    then
+        ## Absolute path
+        src="$FILE"
+    elif [ -f "$TODO_DIR/$FILE" ]
+    then
+        ## Path relative to todo.sh directory
+        src="$TODO_DIR/$1"
+    elif [ -f "$FILE" ]
+    then
+        ## Path relative to current working directory
+        src="$FILE"
+    else
+        echo "TODO: File $FILE does not exist."
+        exit 1
+    fi
+
+    ## Get our search arguments, if any
+    shift ## was file name, new $1 is first search term
+
+    ## Prefix the filter_command with the pre_filter_command
+    filter_command="${pre_filter_command:-}"
+
+    for search_term in "$@"
+    do
+        ## See if the first character of $search_term is a dash
+        if [ ${search_term:0:1} != '-' ]
+        then
+            ## First character isn't a dash: hide lines that don't match
+            ## this $search_term
+            filter_command="${filter_command:-} ${filter_command:+|} \
+                grep -i \"$search_term\" "
+        else
+            ## First character is a dash: hide lines that match this
+            ## $search_term
+            #
+            ## Remove the first character (-) before adding to our filter command
+            filter_command="${filter_command:-} ${filter_command:+|} \
+                grep -v -i \"${search_term:1}\" "
+        fi
+    done
+
+    ## If post_filter_command is set, append it to the filter_command
+    [ -n "$post_filter_command" ] && {
+        filter_command="${filter_command:-}${filter_command:+ | }${post_filter_command:-}"
+    }
+
+    ## Figure out how much padding we need to use
+    ## We need one level of padding for each power of 10 $LINES uses
+    LINES=$( sed -n '$ =' "$src" )
+    PADDING=${#LINES}
+
+    ## Number the file, then run the filter command,
+    ## then sort and mangle output some more
+    items=$(
+        sed = "$src"                                            \
+        | sed "N; s/^/     /; s/ *\(.\{$PADDING,\}\)\n/\1 /"    \
+        | grep -v "^[0-9]\+ *$"
+    )
+    if [ "${filter_command}" ]; then
+        filtered_items=$(echo -ne "$items" | eval ${filter_command})
+    else
+        filtered_items=$items
+    fi
+    filtered_items=$(
+        echo -ne "$filtered_items"                              \
+        | sed '''
+            s/^     /00000/;
+            s/^    /0000/;
+            s/^   /000/;
+            s/^  /00/;
+            s/^ /0/;
+          ''' \
+        | eval ${TODOTXT_SORT_COMMAND}                                        \
+        | sed '''
+            /^[0-9]\{'$PADDING'\} x /! {
+                s/\(.*(A).*\)/'$PRI_A'\1'$DEFAULT'/g;
+                s/\(.*(B).*\)/'$PRI_B'\1'$DEFAULT'/g;
+                s/\(.*(C).*\)/'$PRI_C'\1'$DEFAULT'/g;
+                s/\(.*([D-Z]).*\)/'$PRI_X'\1'$DEFAULT'/g;
+            }
+          '''                                                   \
+        | sed '''
+            s/'${HIDE_PRIORITY_SUBSTITUTION:-^}'//g
+            s/'${HIDE_PROJECTS_SUBSTITUTION:-^}'//g
+            s/'${HIDE_CONTEXTS_SUBSTITUTION:-^}'//g
+          '''                                                   \
+        | eval ${TODOTXT_FINAL_FILTER}                          \
+    )
+    echo -ne "$filtered_items${filtered_items:+\n}"
+
+    if [ $TODOTXT_VERBOSE -gt 0 ]; then
+        NUMTASKS=$( echo -ne "$filtered_items" | sed -n '$ =' )
+        TOTALTASKS=$( echo -ne "$items" | sed -n '$ =' )
+
+        echo "--"
+        echo "TODO: ${NUMTASKS:-0} of ${TOTALTASKS:-0} tasks shown from $FILE"
+    fi
+    if [ $TODOTXT_VERBOSE -gt 1 ]
+    then
+        echo "TODO DEBUG: Filter Command was: ${filter_command:-cat}"
+    fi
+}
+
+export -f _list
+
+# == HANDLE ACTION ==
+action=$( printf "%s\n" "$ACTION" | tr 'A-Z' 'a-z' )
+
+## If the first argument is "command", run the rest of the arguments
+## using todo.sh builtins.
+## Else, run a actions script with the name of the command if it exists
+## or fallback to using a builtin
+if [ "$action" == command ]
+then
+    ## Get rid of "command" from arguments list
+    shift
+    ## Reset action to new first argument
+    action=$( printf "%s\n" "$1" | tr 'A-Z' 'a-z' )
+elif [ -d "$TODO_ACTIONS_DIR" -a -x "$TODO_ACTIONS_DIR/$action" ]
+then
+    "$TODO_ACTIONS_DIR/$action" "$@"
+    cleanup
+fi
+
+## Only run if $action isn't found in .todo.actions.d
+case $action in
+"add" | "a")
+    if [[ -z "$2" && $TODOTXT_FORCE = 0 ]]; then
+        echo -n "Add: "
+        read input
+    else
+        [ -z "$2" ] && die "usage: $TODO_SH add \"TODO ITEM\""
+        shift
+        input=$*
+    fi
+
+    if [[ $TODOTXT_DATE_ON_ADD = 1 ]]; then
+        now=`date '+%Y-%m-%d'`
+        input="$now $input"
+    fi
+    echo "$input" >> "$TODO_FILE"
+    TASKNUM=$(sed -n '$ =' "$TODO_FILE")
+    [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: '$input' added on line $TASKNUM."
+    cleanup;;
+
+"addto" )
+    [ -z "$2" ] && die "usage: $TODO_SH addto DEST \"TODO ITEM\""
+    dest="$TODO_DIR/$2"
+    [ -z "$3" ] && die "usage: $TODO_SH addto DEST \"TODO ITEM\""
+    shift
+    shift
+    input=$*
+
+    if [ -f "$dest" ]; then
+        echo "$input" >> "$dest"
+        TASKNUM=$(sed -n '$ =' "$dest")
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: '$input' added to $dest on line $TASKNUM."
+    else
+        echo "TODO: Destination file $dest does not exist."
+    fi
+    cleanup;;
+
+"append" | "app" )
+    errmsg="usage: $TODO_SH append ITEM# \"TEXT TO APPEND\""
+    shift; item=$1; shift
+
+    [ -z "$item" ] && die "$errmsg"
+    [[ "$item" = +([0-9]) ]] || die "$errmsg"
+    todo=$(sed "$item!d" "$TODO_FILE")
+    [ -z "$todo" ] && die "$item: No such todo."
+    if [[ -z "$1" && $TODOTXT_FORCE = 0 ]]; then
+        echo -n "Append: "
+        read input
+    else
+        input=$*
+    fi
+    if sed -i.bak $item" s|^.*|& $input|" "$TODO_FILE"; then
+        newtodo=$(sed "$item!d" "$TODO_FILE")
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo "$item: $newtodo"
+    else
+        echo "TODO: Error appending task $item."
+    fi
+    cleanup;;
+
+"archive" )
+    archive;;
+
+"del" | "rm" )
+    # replace deleted line with a blank line when TODOTXT_PRESERVE_LINE_NUMBERS is 1
+    errmsg="usage: $TODO_SH del ITEM#"
+    item=$2
+    [ -z "$item" ] && die "$errmsg"
+
+    if [ -z "$3" ]; then
+
+        [[ "$item" = +([0-9]) ]] || die "$errmsg"
+        if sed -ne "$item p" "$TODO_FILE" | grep "^."; then
+            DELETEME=$(sed "$item!d" "$TODO_FILE")
+
+            if  [ $TODOTXT_FORCE = 0 ]; then
+                echo "Delete '$DELETEME'?  (y/n)"
+                read ANSWER
+            else
+                ANSWER="y"
+            fi
+            if [ "$ANSWER" = "y" ]; then
+                if [ $TODOTXT_PRESERVE_LINE_NUMBERS = 0 ]; then
+                    # delete line (changes line numbers)
+                    sed -i.bak -e $item"s/^.*//" -e '/./!d' "$TODO_FILE"
+                else
+                    # leave blank line behind (preserves line numbers)
+                    sed -i.bak -e $item"s/^.*//" "$TODO_FILE"
+                fi
+                [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: '$DELETEME' deleted."
+                cleanup
+            else
+                echo "TODO: No tasks were deleted."
+            fi
+        else
+            echo "$item: No such todo."
+        fi
+    else
+        sed -i.bak -e $item"s/$3/ /g"  "$TODO_FILE"
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: $3 removed from $item."
+    fi ;;
+
+"depri" | "dp" )
+    item=$2
+    errmsg="usage: $TODO_SH depri ITEM#"
+
+    todo=$(sed "$item!d" "$TODO_FILE")
+    [ -z "$todo" ] && die "$item: No such todo."
+    [[ "$item" = +([0-9]) ]] || die "$errmsg"
+
+    sed -e $item"s/^(.) //" "$TODO_FILE" > /dev/null 2>&1
+
+    if [ "$?" -eq 0 ]; then
+        #it's all good, continue
+        sed -i.bak -e $item"s/^(.) //" "$TODO_FILE"
+        NEWTODO=$(sed "$item!d" "$TODO_FILE")
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo -e "`echo "$item: $NEWTODO"`"
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: $item deprioritized."
+        cleanup
+    else
+        die "$errmsg"
+    fi;;
+
+"do" )
+    errmsg="usage: $TODO_SH do ITEM#"
+		# shift so we get arguments to the do request
+		shift;
+
+		# Split multiple do's, if comma seperated change to whitespace sepereated
+		# Loop the 'do' function for each item
+		for item in `echo $* | tr ',' ' '`; do 
+    	[ -z "$item" ] && die "$errmsg"
+    	[[ "$item" = +([0-9]) ]] || die "$errmsg"
+		
+    	todo=$(sed "$item!d" "$TODO_FILE")
+    	[ -z "$todo" ] && die "$item: No such todo."
+
+    	now=`date '+%Y-%m-%d'`
+    	# remove priority once item is done
+    	sed -i.bak $item"s/^(.) //" "$TODO_FILE"
+    	sed -i.bak $item"s|^|&x $now |" "$TODO_FILE"
+    	newtodo=$(sed "$item!d" "$TODO_FILE")
+    	[ $TODOTXT_VERBOSE -gt 0 ] && echo "$item: $newtodo"
+    	[ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: $item marked as done."
+		done
+	
+    if [ $TODOTXT_AUTO_ARCHIVE = 1 ]; then
+        archive
+    fi
+    cleanup ;;
+
+"help" )
+    help
+    ;;
+
+"list" | "ls" )
+    shift  ## Was ls; new $1 is first search term
+    _list "$TODO_FILE" "$@"
+
+    cleanup
+    ;;
+
+"listall" | "lsa" )
+    shift  ## Was lsa; new $1 is first search term
+
+    cat "$TODO_FILE" "$DONE_FILE" > "$TMP_FILE"
+    _list "$TMP_FILE" "$@"
+
+    cleanup
+    ;;
+
+"listfile" | "lf" )
+    shift  ## Was listfile, next $1 is file name
+    FILE="$1"
+    shift  ## Was filename; next $1 is first search term
+
+    _list "$FILE" "$@"
+
+    cleanup
+    ;;
+
+"listcon" | "lsc" )
+    grep -o '[^ ]*@[^ ]\+' "$TODO_FILE" | grep '^@' | sort -u
+    cleanup ;;
+
+"listproj" | "lsprj" )
+    grep -o '[^ ]*+[^ ]\+' "$TODO_FILE" | grep '^+' | sort -u
+    cleanup ;;
+
+
+"listpri" | "lsp" )
+    shift ## was "listpri", new $1 is priority to list
+
+    if [ "${1:-}" ]
+    then
+        ## A priority was specified
+        pri=$( printf "%s\n" "$1" | tr 'a-z' 'A-Z' | grep '^[A-Z]$' ) || {
+            die "usage: $TODO_SH listpri PRIORITY
+            note: PRIORITY must a single letter from A to Z."
+        }
+    else
+        ## No priority specified; show all priority tasks
+        pri="[[:upper:]]"
+    fi
+    pri="($pri)"
+
+    _list "$TODO_FILE" "$pri"
+    ;;
+
+"move" | "mv" )
+    # replace moved line with a blank line when TODOTXT_PRESERVE_LINE_NUMBERS is 1
+    errmsg="usage: $TODO_SH mv ITEM# DEST [SRC]"
+    item=$2
+    dest="$TODO_DIR/$3"
+    src="$TODO_DIR/$4"
+
+    [ -z "$item" ] && die "$errmsg"
+    [ -z "$4" ] && src="$TODO_FILE"
+    [ -z "$dest" ] && die "$errmsg"
+
+    [[ "$item" = +([0-9]) ]] || die "$errmsg"
+
+    if [ -f "$src" ]; then
+        if [ -f "$dest" ]; then
+            if sed -ne "$item p" "$src" | grep "^."; then
+                MOVEME=$(sed "$item!d" "$src")
+                if  [ $TODOTXT_FORCE = 0 ]; then
+                    echo "Move '$MOVEME' from $src to $dest? (y/n)"
+                    read ANSWER
+                else
+                    ANSWER="y"
+                fi
+                if [ "$ANSWER" = "y" ]; then
+                    if [ $TODOTXT_PRESERVE_LINE_NUMBERS = 0 ]; then
+                        # delete line (changes line numbers)
+                        sed -i.bak -e $item"s/^.*//" -e '/./!d' "$src"
+                    else
+                        # leave blank line behind (preserves line numbers)
+                       sed -i.bak -e $item"s/^.*//" "$src"
+                    fi
+                    echo "$MOVEME" >> "$dest"
+
+                    [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: '$MOVEME' moved from '$src' to '$dest'."
+                    cleanup
+                else
+                    echo "TODO: No tasks moved."
+                fi
+            else
+                echo "$item: No such item in $src."
+            fi
+        else
+            echo "TODO: Destination file $dest does not exist."
+        fi
+    else
+        echo "TODO: Source file $src does not exist."
+    fi
+    cleanup;;
+
+"prepend" | "prep" )
+    errmsg="usage: $TODO_SH prepend ITEM# \"TEXT TO PREPEND\""
+    shift; item=$1; shift
+
+    [ -z "$item" ] && die "$errmsg"
+    [[ "$item" = +([0-9]) ]] || die "$errmsg"
+
+    todo=$(sed "$item!d" "$TODO_FILE")
+    [ -z "$todo" ] && die "$item: No such todo."
+
+    if [[ -z "$1" && $TODOTXT_FORCE = 0 ]]; then
+        echo -n "Prepend: "
+        read input
+    else
+        input=$*
+    fi
+		
+		# Test for then set priority
+		if [ `sed "$item!d" "$TODO_FILE"|grep -c "^(\\w)"` -eq 1 ]; then
+			priority=$(sed "$item!d" "$TODO_FILE" | awk -F '\\(|\\)' '{print $2}')
+		fi
+
+		# If priority isn't set prepend
+		if [ -z $priority ]; then 
+    	if sed -i.bak $item" s|^.*|$input &|" "$TODO_FILE"; then
+       	newtodo=$(sed "$item!d" "$TODO_FILE")
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo "$item: $newtodo"
+    	else
+       	echo "TODO: Error prepending task $item."
+			fi
+		# If priority is set, remove priority, prepend and add back priority
+		else
+			if sed -i.bak -e "$item s/^(.) //" -e "$item s|^.*|\($priority\) $1 &|" "$TODO_FILE"; then
+        newtodo=$(sed "$item!d" "$TODO_FILE")
+       	[ $TODOTXT_VERBOSE -gt 0 ] && echo "$item: $newtodo"
+    	else
+       	echo "TODO: Error prepending task $item."
+    	fi
+		fi
+    cleanup;;
+
+"pri" | "p" )
+    item=$2
+    newpri=$( printf "%s\n" "$3" | tr 'a-z' 'A-Z' )
+
+    errmsg="usage: $TODO_SH pri ITEM# PRIORITY
+note: PRIORITY must be anywhere from A to Z."
+
+    [ "$#" -ne 3 ] && die "$errmsg"
+    [[ "$item" = +([0-9]) ]] || die "$errmsg"
+    [[ "$newpri" = @([A-Z]) ]] || die "$errmsg"
+
+    sed -e $item"s/^(.) //" -e $item"s/^/($newpri) /" "$TODO_FILE" > /dev/null 2>&1
+
+    if [ "$?" -eq 0 ]; then
+        #it's all good, continue
+        sed -i.bak -e $item"s/^(.) //" -e $item"s/^/($newpri) /" "$TODO_FILE"
+        NEWTODO=$(sed "$item!d" "$TODO_FILE")
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo -e "`echo "$item: $NEWTODO"`"
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: $item prioritized ($newpri)."
+        cleanup
+    else
+        die "$errmsg"
+    fi;;
+
+"replace" )
+    errmsg="usage: $TODO_SH replace ITEM# \"UPDATED ITEM\""
+    shift; item=$1; shift
+
+    [ -z "$item" ] && die "$errmsg"
+    [[ "$item" = +([0-9]) ]] || die "$errmsg"
+
+    todo=$(sed "$item!d" "$TODO_FILE")
+    [ -z "$todo" ] && die "$item: No such todo."
+
+    # Test for then set priority
+    if [ `sed "$item!d" "$TODO_FILE"|grep -c "^(\\w)"` -eq 1 ]; then
+      priority=$(sed "$item!d" "$TODO_FILE" | awk -F '\\(|\\)' '{print $2}')
+    fi
+
+    if [[ -z "$1" && $TODOTXT_FORCE = 0 ]]; then
+        echo -n "Replacement: "
+        read input
+    else
+        input=$*
+    fi
+
+    # If priority isn't set replace, if it is remove priority, replace then add priority again
+    if [ -z $priority ]; then
+      sed -i.bak $item" s|^.*|$input|" "$TODO_FILE"
+    else
+      sed -i.bak -e "$item s/^(.) //" -e "$item s|^.*|\($priority\) $1|" "$TODO_FILE"
+    fi
+    [ $TODOTXT_VERBOSE -gt 0 ] && NEWTODO=$(head -$item "$TODO_FILE" | tail -1)
+    [ $TODOTXT_VERBOSE -gt 0 ] && echo "$item: $todo"
+    [ $TODOTXT_VERBOSE -gt 0 ] && echo "replaced with"
+    [ $TODOTXT_VERBOSE -gt 0 ] && echo "$item: $NEWTODO"
+    cleanup;;
+
+"report" )
+    #archive first
+    sed '/^x /!d' "$TODO_FILE" >> "$DONE_FILE"
+    sed -i.bak '/^x /d' "$TODO_FILE"
+
+    NUMLINES=$( sed -n '$ =' "$TODO_FILE" )
+    if [ ${NUMLINES:-0} = "0" ]; then
+         echo "datetime todos dones" >> "$REPORT_FILE"
+    fi
+    #now report
+    TOTAL=$( sed -n '$ =' "$TODO_FILE" )
+    TDONE=$( sed -n '$ =' "$DONE_FILE" )
+    TECHO=$(echo $(date +%Y-%m-%d-%T); echo ' '; echo ${TOTAL:-0}; echo ' ';
+    echo ${TDONE:-0})
+    echo $TECHO >> "$REPORT_FILE"
+    [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: Report file updated."
+    cat "$REPORT_FILE"
+    cleanup;;
+
+* )
+    usage
+    ;;
+esac

todo.txt

@@ -0,0 +1,2 @@
+
+Checkout nootloader lock fuses

tools/efsl-0.3.6/CHANGELOG

@@ -0,0 +1,39 @@
+CHANGEFILE
+----------
+
+This is the Changefile for the development 0.3 branch of EFSL.
+Recording began with EFSL-0.3.3
+
+0.3.5
+-----
+* Added warning in documentation that it is outdated
+* Changed structure definitions
+* Implemnted full-feature cp
+* Renamed some efsl-functions (all starting with EFSL_)
+* Added another example for AVR.
+* Updated docs on getting started on AVR.
+
+0.3.4
+-----
+* Fixed avr support
+* Created new avr example + makefile
+* Some more work on new fsutils
+
+0.3.3
+-----
+
+* Renamed src/core to src/base
+* Implemented new hwInterface structure
+  Support for multiple hwEndpoints in one project
+* Modified SD_SPI to work as a general protocol
+* Modified Linuxfile to the new hwInterface model
+* Created a new efs_configger, now supports every
+  combination of partitions/disc
+* Implemented full support for little and big endian
+  machines, as well as for little and big endian 
+  filesystems
+* Created new build system, for multiple platforms,
+  configurable from one file
+* Changes cpo to use the new library functions
+* Broke both dsp & atmega support
+

tools/efsl-0.3.6/Makefile

@@ -0,0 +1,31 @@
+include conf/config.makefile
+
+linux: efsl-base efsl-fs-vfat efsl-hwd-linuxfile
+avr: efsl-base efsl-fs-vfat efsl-prot-sdspi efsl-hwd-atmega_sd
+
+efsl-base:
+	make -C src/base/
+	cp src/base/efsl-base.a lib/libefsl-base.a
+
+efsl-fs-vfat:
+	make -C src/fs/vfat/
+	cp src/fs/vfat/efsl-fs-vfat.a lib/libefsl-fs-vfat.a
+
+efsl-prot-sdspi:
+	make -C src/protocols/sdcard_spi/
+	cp src/protocols/sdcard_spi/efsl-prot-sdspi.a lib/libefsl-prot-sdspi.a
+
+efsl-hwd-linuxfile:
+	make -C src/hwdrivers/linuxfile/
+	cp src/hwdrivers/linuxfile/efsl-hwd-linuxfile.a lib/libefsl-hwd-linuxfile.a
+
+efsl-hwd-atmega_sd:
+	make -C src/hwdrivers/atmega_spi/
+	cp src/hwdrivers/atmega_spi/efsl-hwd-atmega_spi.a lib/libefsl-hwd-atmega_spi.a
+
+clean:
+	make -C src/base/ clean
+	make -C src/fs/vfat/ clean
+	make -C src/hwdrivers/linuxfile/ clean
+	make -C src/hwdrivers/atmega_spi clean
+	rm -rf lib/*.a

tools/efsl-0.3.6/conf/config-avr.h

@@ -0,0 +1,174 @@
+#ifndef __EFSL_CONFIG_H__
+#define __EFSL_CONFIG_H__
+
+/* Hardware target
+   ---------------
+
+ * Here you will define for what hardware-endpoint EFSL should be compiled.
+ * Look in interfaces.h to see what systems are supported, and add your own
+ * there if you need to write your own driver. Then, define the name you 
+ * selected for your hardware there here. Make sure that you only select one
+ * device!
+*/
+
+	/*#define HW_ENDPOINT_LINUX*/
+	#define HW_ENDPOINT_ATMEGA128_SD
+	/*#define HW_ENDPOINT_DSP_TI6713_SD*/
+
+#define MULTIPLE_INTERFACE_SUPPORT
+
+/* Architecture
+   ------------
+
+ * In this section you should configure how large the default variable
+ * types in your system are. This is controlled in types.h in the general
+ * include directory. The selection you make here defines to what the various
+ * e(s|u)int(8,16,32) types will map.
+ * For 32 bit Linux : VARSIZE_LINUX32
+ * For 64 bit Linux : VARSIZE_LINUX64
+ * For AVR's        : VARSIZE_ATMEGA
+ * For TMS67XX      : VARSIZE_TMS67XX
+ */
+
+#define VARSIZE_ATMEGA
+
+
+/* Memory configuration
+   --------------------
+ 
+ * Here you must configure wheter your processor can access memory byte
+ * oriented. All x86 processors can do it, AVR's can do it to. Some DSP
+ * or other microcontrollers can't. If you have an 8 bit system you're safe.
+ * If you are really unsure, leave the setting commented out, it will be slower
+ * but it will work for sure.
+*/
+
+	#define BYTE_ALIGNMENT
+
+/* Cache configuration
+   -------------------
+   
+ * Here you must configure how much memory of cache you can/want to use.
+ * The number you put at IOMAN_NUMBUFFER is multiplied by 512. So 1 means 
+ * 512 bytes cache, 4 means 2048 bytes cache. More is better.
+ * The number after IOMAN_NUMITERATIONS should be untouched.
+ * The last field (IOMAN_DO_MEMALLOC) is to tell ioman to allocate it's
+ * own memory in it's structure, or not. If you choose to do it yourself
+ * you will have to pass a pointer to the memory as the last argument of
+ * ioman_init.
+*/
+	#define IOMAN_NUMBUFFER 1
+	#define IOMAN_NUMITERATIONS 3
+	#define IOMAN_DO_MEMALLOC
+
+/* Cluster pre-allocation 
+   ----------------------
+   
+ * When writing files, the function that performs the actual write has to
+ * calculate how many clusters it will need for that request. It then allocates
+ * that number of new clusters to the file. Since this involves some 
+ * calculations and writing of the FAT, you might find it beneficial to limit 
+ * the number of allocations, and allow fwrite to pre-allocate a number of 
+ * clusters extra. This setting determines how many clusters will be extra 
+ * allocated whenever this is required.
+ * Take in carefull consideration how large your clustersize is, putting 10 here
+ * with a clustersize of 32kb means you might waste 320 kb.
+ * The first option is for preallocating files, the other is used when enlarging
+ * a directory to accomodate more files
+*/
+      #define CLUSTER_PREALLOC_FILE 0
+      #define CLUSTER_PREALLOC_DIRECTORY 0
+
+
+/* Endianess configuration
+   -----------------------
+   
+ * Here you can configure wheter your architecture is little or big endian. This
+ * is important since all FAT structures are stored in intel little endian 
+ * order. So if you have a big endian system the library has to convert all 
+ * figures to big endian in order to work.
+ */
+	#define HOST_LITTLE_ENDIAN
+	
+
+/* Date and Time support
+   ---------------------
+   
+ * Here you can enable or disable date and time support. If you enable
+ * it you will have to create 6 functions, that are described in the
+ * EFSL manual. If the functions are not present when linking your
+ * program with the library you will get unresolved dependencies.
+ */
+	/* #define DATE_TIME_SUPPORT */
+	
+/* Error reporting support
+   -----------------------
+   
+ * When you receive an error in userland, it usually only gives limited
+ * information (most likely, fail or success). If error detection and
+ * reporting is important for you, you can enable more detailed error
+ * reporting here. This is optional, the costs are 1 byte per object,
+ * and a small increase in code size.
+ * You can enable error recording for all object, or you can select the
+ * object manually.
+ * For full error reporting use FULL_ERROR_SUPPORT
+ * For only the base-core of the library use BASE_ERROR_SUPPORT
+ * For IO/Man use ERRSUP_IOMAN
+ * For Disc   use ERRSUP_IOMAN
+ * For Part   use ERRSUP_PARTITION
+ * For Fs     use ERRSUP_FILESYSTEM
+ * For File   use ERRSUP_FILE
+*/
+
+	#define FULL_ERROR_SUPPORT
+	/*#define BASE_ERROR_SUPPORT*/
+
+/* List options 
+   ------------
+   
+ * In this section you can configure what kind of data you will get from
+ * directory listing requests. Please refer to the documentation for
+ * more information
+*/
+
+#define LIST_MAXLENFILENAME 12
+
+
+/* Debugging configuration
+   -----------------------
+   
+ * Here you can configure the debugging behaviour. Debugging is different
+ * on every platform (see debug.h for more information). 
+ * If your hardware has no means of output (printf) dont define any anything, 
+ * and nothing will happen. For real world use debugging should be turned off.
+*/
+
+	#define DEBUG
+
+
+/* Debugging configuration - AVR Specific: PORT
+   --------------------------------------------
+
+ * Here you can select which UART you want to use for debugging. 
+ * If you did not define DEBUG, this setting has no effect. 
+ * Note that it is not a good idea to use a port that you use in userspace.
+*/
+
+	/*#define DEBUG_PORT 0*/		/* Select UART0 */
+	#define DEBUG_PORT 1			/* Select UART1 */
+
+
+/* Debugging configuration - AVR Specific: UBRR
+   --------------------------------------------
+
+ * Here you can set UBRR, this value will select the serial clock speed.
+ * This value depends on your baudrate and clockrate. U2X is by standard 0, 
+ * if you would want this 1 for some reason, this can be done in debug.c.
+*/ 
+
+	/*#define DEBUG_UBRR 51*/ 		/* 9600bps on 8Mhz */
+	#define DEBUG_UBRR 95 	/* 9600bps on 14.7456Mhz */
+	/*#define DEBUG_UBRR 103*/	/* 9600bps on 16Mhz */
+
+
+#endif

tools/efsl-0.3.6/conf/config-avr.makefile

@@ -0,0 +1,46 @@
+################################################################################
+###                      EFSL - Embedded Filesystems Library                 ###
+###                      -----------------------------------                 ###
+###                                                                          ###
+################################################################################
+
+# This is the configuration file for EFSL. This file will enable your to build
+# the library if you have GNU make, or compatible, on your system.
+# If you do not have a make utility on your system, or it cannot be used in this
+# fashion (when using IDE's, like MSVC or Code composer), please refer to the
+# documentation on how to build EFSL. It is possible to build EFSL with any C
+# compiler although it will be a bit more work.
+
+# C compiler
+# ----------
+#
+# Here you select with what binary the sourcefiles must be compiled
+
+CC=avr-gcc
+
+# AR archiver
+# -----------
+#
+# This variable controls what archiver is to be used. This utility is optional,
+# if you don't have GNU make, you probably need to link differently as well.
+
+AR=avr-ar
+
+# Objcopy
+# --------
+#
+# This variable controls what objcopy is to be used. This utility will be used
+# when the program is converted to an format that your uC understands.
+
+OBJCOPY=avr-objcopy
+
+# C compiler options
+# ------------------
+#
+# Here you can configure several options about the compilation.
+
+DEBUGGING=-g3
+VERIFY=-Wall
+ARCHITECTURE=-mmcu=atmega128
+OPTIMISE=-Os
+GCFLAGS=$(DEBUGGING) $(VERIFY) $(ARCHITECTURE) $(OPTIMISE)

tools/efsl-0.3.6/conf/config-linux.h

@@ -0,0 +1,151 @@
+#ifndef __EFSL_CONFIG_H__
+#define __EFSL_CONFIG_H__
+
+/* Hardware target
+   ---------------
+
+ * Here you will define for what hardware-endpoint EFSL should be compiled.
+ * Look in interfaces.h to see what systems are supported, and add your own
+ * there if you need to write your own driver. Then, define the name you 
+ * selected for your hardware there here. Make sure that you only select one
+ * device!
+*/
+
+	/*#define HW_ENDPOINT_LINUX*/
+	/*#define HW_ENDPOINT_ATMEGA128_SD*/
+	/*#define HW_ENDPOINT_DSP_TI6713_SD*/
+	
+#define MULTIPLE_INTERFACE_SUPPORT
+/*#define HWIFUNC_INIT(x)      lf_init(x)
+#define HWIFUNC_READ(x,y,z)  lf_readBuf(x,y,z)
+#define HWIFUNC_WRITE(x,y,z) lf_writeBuf(x,y,z)
+#define HWIFUNC_HEADER interfaces/linuxfile.h */
+	
+/* Architecture
+   ------------
+
+ * In this section you should configure how large the default variable
+ * types in your system are. This is controlled in types.h in the general
+ * include directory. The selection you make here defines to what the various
+ * e(s|u)int(8,16,32) types will map.
+ * For 32 bit Linux : VARSIZE_LINUX32
+ * For 64 bit Linux : VARSIZE_LINUX64
+ * For AVR's        : VARSIZE_ATMEGA
+ * For TMS67XX      : VARSIZE_TMS67XX
+ */
+ 
+#define VARSIZE_LINUX32
+	
+/* Memory configuration
+   --------------------
+ 
+ * Here you must configure wheter your processor can access memory byte
+ * oriented. All x86 processors can do it, AVR's can do it to. Some DSP
+ * or other microcontrollers can't. If you have an 8 bit system you're safe.
+ * If you are really unsure, leave the setting commented out, it will be slower
+ * but it will work for sure.
+*/
+
+	#define BYTE_ALIGNMENT
+	
+/* Cache configuration
+   -------------------
+   
+ * Here you must configure how much memory of cache you can/want to use.
+ * The number you put at IOMAN_NUMBUFFER is multiplied by 512. So 1 means 
+ * 512 bytes cache, 4 means 2048 bytes cache. More is better.
+ * The number after IOMAN_NUMITERATIONS should be untouched.
+ * The last field (IOMAN_DO_MEMALLOC) is to tell ioman to allocate it's
+ * own memory in it's structure, or not. If you choose to do it yourself
+ * you will have to pass a pointer to the memory as the last argument of
+ * ioman_init.
+*/
+	#define IOMAN_NUMBUFFER 10
+	#define IOMAN_NUMITERATIONS 3
+	#define IOMAN_DO_MEMALLOC
+
+/* Cluster pre-allocation 
+   ----------------------
+   
+ * When writing files, the function that performs the actual write has to
+ * calculate how many clusters it will need for that request. It then allocates
+ * that number of new clusters to the file. Since this involves some 
+ * calculations and writing of the FAT, you might find it beneficial to limit 
+ * the number of allocations, and allow fwrite to pre-allocate a number of 
+ * clusters extra. This setting determines how many clusters will be extra 
+ * allocated whenever this is required.
+ * Take in carefull consideration how large your clustersize is, putting 10 here
+ * with a clustersize of 32kb means you might waste 320 kb.
+ * The first option is for preallocating files, the other is used when enlarging
+ * a directory to accomodate more files
+*/
+      #define CLUSTER_PREALLOC_FILE 5
+      #define CLUSTER_PREALLOC_DIRECTORY 2
+
+/* Endianess configuration
+   -----------------------
+   
+ * Here you can configure wheter your architecture is little or big endian. This
+ * is important since all FAT structures are stored in intel little endian 
+ * order. So if you have a big endian system the library has to convert all 
+ * figures to big endian in order to work.
+ */
+	/*#define HOST_BIG_ENDIAN*/
+	#define HOST_LITTLE_ENDIAN
+	
+/* Date and Time support
+   ---------------------
+   
+ * Here you can enable or disable date and time support. If you enable
+ * it you will have to create 6 functions, that are described in the
+ * EFSL manual. If the functions are not present when linking your
+ * program with the library you will get unresolved dependencies.
+ */ 
+ 	/* #define DATE_TIME_SUPPORT */
+
+/* Error reporting support
+   -----------------------
+   
+ * When you receive an error in userland, it usually only gives limited
+ * information (most likely, fail or success). If error detection and
+ * reporting is important for you, you can enable more detailed error
+ * reporting here. This is optional, the costs are 1 byte per object,
+ * and a small increase in code size.
+ * You can enable error recording for all object, or you can select the
+ * object manually.
+ * For full error reporting use FULL_ERROR_SUPPORT
+ * For only the base-core of the library use BASE_ERROR_SUPPORT
+ * For IO/Man use ERRSUP_IOMAN
+ * For Disc   use ERRSUP_IOMAN
+ * For Part   use ERRSUP_PARTITION
+ * For Fs     use ERRSUP_FILESYSTEM
+ * For File   use ERRSUP_FILE
+*/
+
+	#define FULL_ERROR_SUPPORT
+	/*#define BASE_ERROR_SUPPORT*/
+ 
+
+/* Debugging configuration
+   -----------------------
+   
+ * Here you can configure the debugging behaviour. Debugging is different
+ * on every platform (see debug.h for more information). 
+ * If your hardware has no means of output (printf) dont define any anything, 
+ * and nothing will happen. For real world use debugging should be turned off.
+*/
+
+	/*#define DEBUG*/
+	/*#define DO_FUNC_DEBUG*/
+
+/* List options 
+   ------------
+   
+ * In this section you can configure what kind of data you will get from
+ * directory listing requests. Please refer to the documentation for
+ * more information
+*/
+
+	#define LIST_MAXLENFILENAME 12
+
+#endif

tools/efsl-0.3.6/conf/config-linux.makefile

@@ -0,0 +1,38 @@
+################################################################################
+###                      EFSL - Embedded Filesystems Library                 ###
+###                      -----------------------------------                 ###
+###                                                                          ###
+################################################################################
+
+# This is the configuration file for EFSL. This file will enable your to build
+# the library if you have GNU make, or compatible, on your system.
+# If you do not have a make utility on your system, or it cannot be used in this
+# fashion (when using IDE's, like MSVC or Code composer), please refer to the
+# documentation on how to build EFSL. It is possible to build EFSL with any C
+# compiler although it will be a bit more work.
+
+# C compiler
+# ----------
+#
+# Here you select with what binary the sourcefiles must be compiled
+
+CC=gcc
+
+# AR archiver
+# -----------
+#
+# This variable controls what archiver is to be used. This utility is optional,
+# if you don't have GNU make, you probably need to link differently as well.
+
+AR=ar
+
+# C compiler options
+# ------------------
+#
+# Here you can configure several options about the compilation.
+
+DEBUGGING=-g3
+VERIFY=-Wall -pedantic -ansi
+ARCHITECTURE=-march=i386
+OPTIMISE=-O0
+GCFLAGS=$(DEBUGGING) $(VERIFY) $(ARCHITECTURE) $(OPTIMISE)

tools/efsl-0.3.6/conf/config-linux64.h

@@ -0,0 +1,151 @@
+#ifndef __EFSL_CONFIG_H__
+#define __EFSL_CONFIG_H__
+
+/* Hardware target
+   ---------------
+
+ * Here you will define for what hardware-endpoint EFSL should be compiled.
+ * Look in interfaces.h to see what systems are supported, and add your own
+ * there if you need to write your own driver. Then, define the name you 
+ * selected for your hardware there here. Make sure that you only select one
+ * device!
+*/
+
+	/*#define HW_ENDPOINT_LINUX*/
+	/*#define HW_ENDPOINT_ATMEGA128_SD*/
+	/*#define HW_ENDPOINT_DSP_TI6713_SD*/
+	
+#define MULTIPLE_INTERFACE_SUPPORT
+/*#define HWIFUNC_INIT(x)      lf_init(x)
+#define HWIFUNC_READ(x,y,z)  lf_readBuf(x,y,z)
+#define HWIFUNC_WRITE(x,y,z) lf_writeBuf(x,y,z)
+#define HWIFUNC_HEADER interfaces/linuxfile.h */
+	
+/* Architecture
+   ------------
+
+ * In this section you should configure how large the default variable
+ * types in your system are. This is controlled in types.h in the general
+ * include directory. The selection you make here defines to what the various
+ * e(s|u)int(8,16,32) types will map.
+ * For 32 bit Linux : VARSIZE_LINUX32
+ * For 64 bit Linux : VARSIZE_LINUX64
+ * For AVR's        : VARSIZE_ATMEGA
+ * For TMS67XX      : VARSIZE_TMS67XX
+ */
+ 
+#define VARSIZE_LINUX64
+	
+/* Memory configuration
+   --------------------
+ 
+ * Here you must configure wheter your processor can access memory byte
+ * oriented. All x86 processors can do it, AVR's can do it to. Some DSP
+ * or other microcontrollers can't. If you have an 8 bit system you're safe.
+ * If you are really unsure, leave the setting commented out, it will be slower
+ * but it will work for sure.
+*/
+
+	#define BYTE_ALIGNMENT
+	
+/* Cache configuration
+   -------------------
+   
+ * Here you must configure how much memory of cache you can/want to use.
+ * The number you put at IOMAN_NUMBUFFER is multiplied by 512. So 1 means 
+ * 512 bytes cache, 4 means 2048 bytes cache. More is better.
+ * The number after IOMAN_NUMITERATIONS should be untouched.
+ * The last field (IOMAN_DO_MEMALLOC) is to tell ioman to allocate it's
+ * own memory in it's structure, or not. If you choose to do it yourself
+ * you will have to pass a pointer to the memory as the last argument of
+ * ioman_init.
+*/
+	#define IOMAN_NUMBUFFER 10
+	#define IOMAN_NUMITERATIONS 3
+	#define IOMAN_DO_MEMALLOC
+
+/* Cluster pre-allocation 
+   ----------------------
+   
+ * When writing files, the function that performs the actual write has to
+ * calculate how many clusters it will need for that request. It then allocates
+ * that number of new clusters to the file. Since this involves some 
+ * calculations and writing of the FAT, you might find it beneficial to limit 
+ * the number of allocations, and allow fwrite to pre-allocate a number of 
+ * clusters extra. This setting determines how many clusters will be extra 
+ * allocated whenever this is required.
+ * Take in carefull consideration how large your clustersize is, putting 10 here
+ * with a clustersize of 32kb means you might waste 320 kb.
+ * The first option is for preallocating files, the other is used when enlarging
+ * a directory to accomodate more files
+*/
+      #define CLUSTER_PREALLOC_FILE 5
+      #define CLUSTER_PREALLOC_DIRECTORY 2
+
+/* Endianess configuration
+   -----------------------
+   
+ * Here you can configure wheter your architecture is little or big endian. This
+ * is important since all FAT structures are stored in intel little endian 
+ * order. So if you have a big endian system the library has to convert all 
+ * figures to big endian in order to work.
+ */
+	/*#define HOST_BIG_ENDIAN*/
+	#define HOST_LITTLE_ENDIAN
+	
+/* Date and Time support
+   ---------------------
+   
+ * Here you can enable or disable date and time support. If you enable
+ * it you will have to create 6 functions, that are described in the
+ * EFSL manual. If the functions are not present when linking your
+ * program with the library you will get unresolved dependencies.
+ */ 
+ 	/* #define DATE_TIME_SUPPORT */
+
+/* Error reporting support
+   -----------------------
+   
+ * When you receive an error in userland, it usually only gives limited
+ * information (most likely, fail or success). If error detection and
+ * reporting is important for you, you can enable more detailed error
+ * reporting here. This is optional, the costs are 1 byte per object,
+ * and a small increase in code size.
+ * You can enable error recording for all object, or you can select the
+ * object manually.
+ * For full error reporting use FULL_ERROR_SUPPORT
+ * For only the base-core of the library use BASE_ERROR_SUPPORT
+ * For IO/Man use ERRSUP_IOMAN
+ * For Disc   use ERRSUP_IOMAN
+ * For Part   use ERRSUP_PARTITION
+ * For Fs     use ERRSUP_FILESYSTEM
+ * For File   use ERRSUP_FILE
+*/
+
+	#define FULL_ERROR_SUPPORT
+	/*#define BASE_ERROR_SUPPORT*/
+ 
+
+/* Debugging configuration
+   -----------------------
+   
+ * Here you can configure the debugging behaviour. Debugging is different
+ * on every platform (see debug.h for more information). 
+ * If your hardware has no means of output (printf) dont define any anything, 
+ * and nothing will happen. For real world use debugging should be turned off.
+*/
+
+	/*#define DEBUG*/
+	/*#define DO_FUNC_DEBUG*/
+
+/* List options 
+   ------------
+   
+ * In this section you can configure what kind of data you will get from
+ * directory listing requests. Please refer to the documentation for
+ * more information
+*/
+
+	#define LIST_MAXLENFILENAME 12
+
+#endif

tools/efsl-0.3.6/conf/config-linux64.makefile

@@ -0,0 +1,38 @@
+################################################################################
+###                      EFSL - Embedded Filesystems Library                 ###
+###                      -----------------------------------                 ###
+###                                                                          ###
+################################################################################
+
+# This is the configuration file for EFSL. This file will enable your to build
+# the library if you have GNU make, or compatible, on your system.
+# If you do not have a make utility on your system, or it cannot be used in this
+# fashion (when using IDE's, like MSVC or Code composer), please refer to the
+# documentation on how to build EFSL. It is possible to build EFSL with any C
+# compiler although it will be a bit more work.
+
+# C compiler
+# ----------
+#
+# Here you select with what binary the sourcefiles must be compiled
+
+CC=gcc
+
+# AR archiver
+# -----------
+#
+# This variable controls what archiver is to be used. This utility is optional,
+# if you don't have GNU make, you probably need to link differently as well.
+
+AR=ar
+
+# C compiler options
+# ------------------
+#
+# Here you can configure several options about the compilation.
+
+DEBUGGING=-g3
+VERIFY=-Wall -pedantic -ansi
+ARCHITECTURE=-march=k8
+OPTIMISE=-O0
+GCFLAGS=$(DEBUGGING) $(VERIFY) $(ARCHITECTURE) $(OPTIMISE)

tools/efsl-0.3.6/conf/config.h

@@ -0,0 +1 @@
+config-linux.h

tools/efsl-0.3.6/conf/config.makefile

@@ -0,0 +1 @@
+config-linux.makefile

tools/efsl-0.3.6/docs/Makefile

@@ -0,0 +1,13 @@
+all: manual.tex
+	latex manual.tex
+	latex manual.tex # Needs to be done a second time to make sure that the contents table is correct
+	dvips -o manual.ps manual.dvi
+	dvipdfm manual.dvi
+
+clean:
+	rm -f manual.aux 
+	rm -f manual.dvi 
+	rm -f manual.log 
+	rm -f manual.pdf 
+	rm -f manual.ps 
+	rm -f manual.toc

tools/efsl-0.3.6/docs/manual.tex

@@ -0,0 +1,117 @@
+\documentclass[a4paper,fleqn]{article}
+
+\usepackage{listings}
+\usepackage{graphicx}
+\usepackage{amsmath}
+\usepackage{amssymb}
+\usepackage{color}
+\usepackage{array}
+\usepackage{verbatim}
+\usepackage{longtable}
+
+\newcommand{\filename}[1]{
+	\textsf{#1}
+}
+\newcommand{\code}[1]{
+	\texttt{#1}
+}
+\newcommand{\external}[1]{
+	\textbf{#1}
+}
+
+\newcommand{\thead}[1]{
+	\textbf{#1}
+}
+
+%\usepackage[latin1]{inputenc}
+%\usepackage[T1]{fontenc}
+
+\lstset{language=C}
+
+\begin{document}
+\title{\Huge{EFSL}\\\Large{Embedded Filesystems Library - 0.3}}
+\author{Lennart Yseboodt\\Michael De Nil}
+\date{$\copyright$ 2005}
+\maketitle
+
+\newpage
+\tableofcontents
+
+\setlength{\parindent}{0pt}
+\setlength{\parskip}{1ex plus 0.5ex minus 0.2ex}
+
+\newpage
+\section{Document Outdated!}
+{\Huge{
+This document is outdated and is in the progress of being renewed.\\
+\newline\newline
+If you are just starting with Efsl, we recommend you to start with the stable
+0.2-branch. This version is currently not really usable, and is intended for people
+working on the code.
+}}
+\newpage
+\section{Preface}
+\input{pages/preface}
+\newpage
+\section{Getting started}
+\subsection{On Linux (file) (0.2)}
+	\input{pages/linux}
+\newpage
+\subsection{On AVR (SD-Card) (0.3)}
+	\input{pages/avr}
+\newpage
+\subsection{On DSP (SD-Card) (0.2)}
+	\input{pages/tms6713}
+
+\newpage
+\section{Configuring EFSL (0.2)}
+	\input{pages/config}
+	
+\newpage
+\section{EFSL Functions}
+\subsection{Date and time support (0.2)}
+	\input{pages/dateandtime}
+	\newpage
+\subsection{efs\_init (0.2)}
+	\input{pages/efs_init}
+	\newpage
+\subsection{file\_fopen (0.2)}
+	\input{pages/file_fopen}
+	\newpage
+\subsection{file\_fclose (0.2)}
+	\input{pages/file_fclose}
+	\newpage
+\subsection{file\_read (0.2)}
+	\input{pages/file_read}
+	\newpage
+\subsection{file\_write (0.2)}
+	\input{pages/file_write}
+	\newpage
+\subsection{mkdir (0.2)}
+	\input{pages/mkdir}
+	\newpage
+\subsection{ls\_openDir (0.2)}
+	\input{pages/lsopendir}
+	\newpage
+\subsection{ls\_getNext (0.2)}
+	\input{pages/lsgetnext}
+	\newpage
+
+\newpage
+\section{Developer notes}
+\subsection{Integer types (0.2)}
+	\input{pages/types}
+\subsection{Debugging (0.2)}
+	\input{pages/debug}
+\subsection{Adding support for a new endpoint (0.2)}
+	\input{pages/driver}
+\subsection{I/O Manager (0.2)}
+	\input{pages/ioman}
+\subsection{C library for EFSL (0.2)}
+	\input{pages/plibc}
+	
+\newpage
+\section{Legal notes}
+	\input{pages/license}
+
+\end{document}

tools/efsl-0.3.6/docs/pages/avr.tex

@@ -0,0 +1,223 @@
+This section describes how to implement Efsl on a AVR $\mu C$ connected to
+an SD-Card (SPI). For getting efsl to compile, the avr-gcc compiler and 
+avr-libc library are required. On Windows you should install WinAVR 
+(http://winavr.sourceforge.net/), on Linux you can install the packages 
+separately (see http://www.nongnu.org/avr-libc/user-manual/install\_tools.html
+for a nice howto).
+\subsubsection{Hardware}
+First, you need set up a prototype in which you connect the CD, CMD, DAT0
+\& CLK lines from the SD-Card to /CS, MOSI, MISO \& SCK from the Atmega.
+\newline
+\includegraphics[scale=0.65]{pics/sdcard.eps}
+\newline
+%\parbox[c]{.4\textwidth}{\begin{center}\includegraphics[width=.4\textwidth]{pics/sdconnection}\end{center}}
+\parbox[c]{.5\textwidth}{
+Connect the following lines on the SD-card:
+\begin{itemize}
+	\item{Pin 9 (DAT2) - NC\\(or pull-up to 3.3V)}
+	\item{Pin 1 (CD) - Any pin on the Atmega128}
+	\item{Pin 2 (CMD) - MOSI\\(pin 12 on the Atmega128)}
+	\item{Pin 3 (Vss) - GND}
+	\item{Pin 4 (Vdd) - +3.3V}
+	\item{Pin 5 (CLK) - SCK\\(pin 11 on the Atmega128)}
+	\item{Pin 6 (Vss) - GND}
+	\item{Pin 7 (DAT0) - MISO\\(pin 12 on the Atmega128)}
+	\item{Pin 8 (DAT1) - NC\\(or pull-up to 3.3V)}
+\end{itemize}
+}
+\parbox[c]{.5\textwidth}{\begin{center}
+	\includegraphics[width=.5\textwidth]{pics/sdconnection}
+	\newline\newline
+	Remark: this schematic includes pull-up's to 3.3V, which
+	can be left off.
+\end{center}}
+\newline
+Remark 1: Make sure that your $\mu C$ is running on 3,3V, so you don't
+damage your SD-Card.\newline
+\newline
+Remark 2: CD is currently static set to PB0, but will become variable
+in future releases.
+\subsubsection{Download \& Compile}
+Let's get started:
+\begin{enumerate}
+	\item{Get the latest release of efsl on http://www.sf.net/projects/efsl/}
+	\item{Unpack the library (on Windows, you can use WinACE or WinRAR)}
+	\item{Copy in directory \filename{conf} the file 
+		\filename{config-avr.h} to \filename{config.h}}
+	\item{Copy in directory \filename{conf} the file 
+		\filename{config-avr.makefile} to \filename{config.makefile}}
+	\item{Compile the library (\code{make avr})}
+\end{enumerate}
+Now you should have the following files in a directory called {lib}:
+\begin{itemize}
+	\item{\filename{libefsl-base.a}}
+	\item{\filename{libefsl-fs-vfat.a}}
+	\item{\filename{libefsl-prot-sdspi.a}}
+	\item{\filename{libefsl-hwd-atmega\_spi.a}}
+\end{itemize}
+\subsubsection{Example}
+Since Efsl itself is only a library, it's not supposed to do anything out of 
+the box, than just compile. To get started, we'll show here a small example
+program that opens an existing file and writes the content to a new file.
+\newline\newline
+First, create a new directory in which you put the compiled efsl-library 
+(\filename{libefsl.a}) and create a new file called \filename{avrtest.c} containing:
+\lstset{numbers=left, stepnumber=1, numberstyle=\small, numbersep=5pt, tabsize=4}
+\begin{lstlisting}
+	#include <efs.h>
+	#include <sd.h>
+	#include <atmega_spi.h>
+
+	void hang(void);
+
+	void main(void)
+	{
+		efsl_storage_conf storage_conf;
+		efsl_fs_conf fs_conf;
+
+		efsl_storage storage;
+		efsl_fs fs;
+		File file_r;
+		File file_w;
+
+		atmegaSpiInterface spi_interface;
+		SdSpiProtocol sd_protocol;
+
+		char buf[512];
+		unsigned short e;
+
+		/* Init */
+		spi_interface.pinSelect=0x01;
+
+		sd_protocol.spiHwInterface=&spi_interface;
+		sd_protocol.spiHwInit=(void *)atmega_spi_init;
+		sd_protocol.spiSendByte=(void *)atmega_spi_send;
+
+		storage_conf.hwObject=&sd_protocol;
+		storage_conf.if_init_fptr=(void *)sd_Init;
+		storage_conf.if_read_fptr=(void *)sd_readSector;
+		storage_conf.if_write_fptr=(void *)sd_writeSector;
+		storage_conf.if_ioctl_fptr=(void *)sd_ioctl;
+		storage_conf.ioman_bufmem=0;
+
+		fs_conf.no_partitions=0;
+		fs_conf.storage=&storage;
+
+		if(efsl_initStorage(&storage,&storage_conf)){
+			hang();
+		}
+
+		if(efsl_initFs(&fs,&fs_conf)){
+			hang();
+		}
+
+		if(file_fopen(&file_r,&fs.filesystem,"orig.txt",'r')!=0){
+			hang();
+		}
+
+		if(file_fopen(&file_w,&fs.filesystem,"copy.txt",'w')!=0){
+			hang();
+		}
+		
+		if(file_fopen(&file_r,&efs.myFs,"orig.txt",'r')!=0){
+			hang();
+		}
+
+		while((e=file_read(&file_r,512,buf))){
+			file_write(&file_w,e,buf);
+		}
+
+		file_fclose(&file_r);
+		file_fclose(&file_w);
+
+		fs_umount(&fs.filesystem);
+
+		hang();
+	}
+
+	void hang(void)
+	{
+		while((1))
+			_NOP();
+	}
+\end{lstlisting}
+$ $\newline
+Some extra information on the code above: TODO
+%\begin{itemize}
+%	\item{Line 1: The header file for efsl is included here. When using the
+%		basic efsl functions, \filename{efs.h} is the only header file on the 
+%		efsl library that needs to be included.}
+%	\item{Line 7: The object efs is created, this object will contain
+%		information about the hardware layer, the partition table and
+%		the disc.}
+%	\item{Line 8: The objects \code{file\_r} and \code{file\_w} are created, these objects 
+%		will contain information about the files that we will open on the 
+%		efs-object.}
+%	\item{Line 9: A buffer of 512 bytes is allocated. This buffer will be
+%		used for reading and writing blocks of data.}
+%	\item{Line 12: Call of \code{efs\_init()}, which will initialize the efs-object.
+%		To this function we pass:
+%		\begin{enumerate}
+%			\item{A pointer to the efs-object.}
+%			\item{A pointer to the file that contains the partition table /
+%				file system (in this example, we select a device as file).}
+%		\end{enumerate}
+%		If this function returns 0, it means that a valid fat partition is
+%		found on the SD-card connected.
+%		If no valid fat-filesystem is found, or the file does not exist, the
+%		function returns a negative value. In this example we then go to an
+%		infinite loop to prevent the program to continue.}
+%	\item{Line 16 \& 20: Call of \code{file\_fopen()}, which will initialize the
+%		file-objects. To this function we pass:
+%		\begin{enumerate}
+%			\item{A pointer to the file-object.}
+%			\item{A pointer to the filesystem-object.}
+%			\item{A pointer to the filename.}
+%			\item{A char containing the the mode (read, write, append).}
+%		\end{enumerate}
+%		If this function returns 0, it means the file has successfully been
+%		opened for reading / writing / appending.
+%	 	If the file could not be opened (because for example a file already 
+%		exists), a negative value is returned.}
+%	\item{Line 24: Call of \code{file\_read()}, which will read a given value of
+%		bytes (in this example 512) from a file and put it's content into
+%		the buffer passed (in this example called buf). This function returns
+%		the amount of bytes read, so the while-loop will be executed as long
+%		as there are bytes left in the file.}
+%	\item{Line 25: Call of \code{file\_write()}, which will write a given value
+%		of bytes (in this example, the amount of bytes that was read
+%		by \code{file\_read()}) from the buffer passed to a file. This function returns
+%		the amount of bytes written.}
+%	\item{Line 28 \& 29: Call of \code{file\_fclose()}, which will close the
+%		file-objects.}
+%	\item{Line 31: Call of \code{fs\_umount()}, which will write all buffers to
+%		the the SD-card.}
+%\end{itemize}
+\subsubsection{Testing}
+So now let's test the program:
+\begin{enumerate}
+	\item
+	{	Compile the program:
+		\begin{itemize}
+			\item{On Linux (with avr-gcc): avr-gcc -I/home/user/src/base/include -I/home/user/src/include -I/home/user/src/fs/vfat/include -I/home/user/src/hwdrivers/atmega\_spi/include -I/home/user/src/protocols/sdcard\_spi/include -I/home/user/conf -ffreestanding -mmcu=atmega128 -Os -o avrtest.o avrtest.c -L/home/user/lib -lefsl-base -lefsl-fs-vfat -lefsl-hwd-atmega\_spi -lefsl-prot-sdspi}
+			\item{On Windows (with WinAVR): replace all slashes with backslashes} 
+		\end{itemize}
+	}
+	\item{Generate a hexfile 
+		(avr-objcopy -j .text -j .data -O ihex avrtest.o avrtest.hex)}
+	\item{Connect an SD-card to your Atmega128 with a file called 
+		\filename{orig.txt} on it.}
+	\item
+	{
+		Flash the hex file into your $\mu C$.
+		\begin{itemize}
+			\item{On Linux: avrdude -P /dev/ttyUSB0 -c stk500 -p m128 -Uflash:w:avrtest.hex}
+			\item{On Windows: use Atmel AVR-Studio}
+		\end{itemize}
+	}
+	\item{Reset your $\mu C$ and wait some time (depending on how big
+		the file \filename{orig.txt} is).}
+	\item{Disconnect the SD-card, so you can put it in your card reader
+		and find out if the file \filename{orig.txt} is copied to 
+		\filename{copy.txt}.}
+\end{enumerate}

tools/efsl-0.3.6/docs/pages/config.tex

@@ -0,0 +1,180 @@
+In this section we're going to talk about the configuration file (\filename{config.h}),
+that defines the behavior of the library. In the configuration files there are many
+settings, most of which default to safe or 'standard' compliant settings.
+
+For every platform we try to deliver a sample configuration, with setting tweaked for
+that architecture. This documentation only refers to the general elements which are
+tied to the library rather that the target hardware.
+
+\subsection{Hardware target}
+Here you will define what kind of hardware you will be using. Please refer to
+section \ref{hwdriver} to learn how to write a hardware endpoint.
+Here you must \code{\#define} the name of your hardware endpoint.
+The following list contains the endpoints that the library ships with.\\
+\begin{tabular}{|l|p{8cm}|}
+	\hline
+	\code{HW\_ENDPOINT\_LINUX}& This endpoint uses a regular file as
+	a "disc" containing a filesystem. This is a great endpoint for
+	testing and debugging. All development is done using this emulation.\\
+	\code{HW\_ENDPOINT\_ATMEGA128\_SD}& This endpoint is for the Atmel ATMega 128
+	with an SD card attached to the SPI pins of the device. Several settings
+	that are specific for this endpoint can be found in the AVR sample 
+	configuration. A Makefile is also provided for compiling the EFSL library
+	using avr-gcc.\\
+	\code{HW\_ENDPOINT\_DSP\_TI6713\_SD}& This endpoint is for a TI DSP, it should
+	work with any McBSP port, due to the infinite amount of options, you should
+	refer to the source code of this endpoint for fine tuning, or selecting what
+	port to use (defaults to McBSP0).\\
+	\hline
+\end{tabular}
+
+\subsection{Memory configuration}
+This section only has one option, called \code{BYTE\_ALIGNMENT}. If you define
+this keyword the library will assume that your CPU is capable of accessing the
+memory in any way it sees fit. This is the case on AVR, because they are 8 bit
+processors, and it is also the case on Intel x86 hardware. Both architectures 
+can read and write words, or double words on any location in memory, be it 
+word aligned or not.
+
+However, some CPU's, are not capable of doing this, and require that all double words
+are aligned on a double word boundary, and all word are aligned on a word boundary.
+This causes problems with some of the casts that are performed in EFSL. If you have such
+a CPU, then you must comment this option out. The effect is that special functions
+will be used to copy or cast memory. These functions work around the problem by
+using memCpy, or manually copying elements of the structs that are normally cast when
+\code{BYTE\_ALIGNMENT} is defined.
+
+If you have an 8 bit architecture, or are running on PC, there is no need to turn this
+off. If you do, the library will work fine, and maybe even without slowdown.
+On architectures that do have the alignment problem, you should turn this flag off.
+Failure to do so will result in undefined behavior.
+
+\subsection{Cache configuration}
+This section is dedicated to configuring the cache memory for the library. Caching
+is performed by the IOMan object, see section \ref{ioman}.
+\subsubsection*{IOMAN\_NUMBUFFER}
+This number determines how much memory will be used for caching. Since this
+is sector based one \code{IOMAN\_NUMBUFFER} equals to 512 byes of memory, plus
+a small overhead in settings (approximately 8 bytes). This number is also affected
+by \code{IOMAN\_NUMITERATIONS}. 
+
+You should carefully consider how much memory you will dedicate to caching. A too
+low number will cause excessive data transfer to and from the disc, where a too high
+number will simply be a waste of memory.
+
+A good rule of thumb is to use 1 buffer per filesystem you create, and 2 buffers
+per file you want to use simultaneously. So for a simple application with
+one filesystem, and one file operation, 2 or 3 buffers will be fine. If you have memory
+to spare, you can use 6 buffers. Using more buffers will have a minimal effect on
+performance.
+
+If you want to seek and rewrite portions of a file, add an extra buffer for that file.
+Using the list function or creating directories will be disc intensive, try to smoothen
+it by using an extra 3 buffer for either operation.
+
+It is perfectly possible to have multiple files op for reading and writing, on different
+filesystems, with listing etc and only using 1 buffer. It will be a tough blow on
+performance though.
+\subsubsection*{IOMAN\_NUMITERATION}
+This number controls how many stack places each cache place gets. Refer to the IOMan 
+section for an explanation. In short, if you only have 1 buffer, leave it at 3. If you
+use more than 4 buffers try decreasing the number to 2 or 1 for a small memory gain.
+
+If you get errors, it means you have set it too low (see error support). It is best
+to leave this at the default setting (do not increase it), unless you know what you
+are doing.
+\subsubsection*{IOMAN\_DOMEMALLOC}
+This configures how IOMan will get it's memory. If you leave it enable, the memory 
+will be allocated by IOMan itself. That means that when you declare the IOMan object
+it will have a member the size of $512 \cdot \mathrm{IOMAN\_NUMBUFFER}$. 
+That also means that that huge lump of memory will reside on the stack. On a true embedded platform with no malloc, this is your best option.
+The last argument of \code{ioman\_init} will be ignored.
+
+If you comment this out,IOMan will take a \code{euint8*} pointer as it's third
+argument to \code{ioman\_init}. It will use the memory pointed to as cache.
+You will have to make sure it's reserved and of the correct size.
+This allows you to put the memory on the heap, or perform special tricks like
+deallocating it without having to umount your filesystem and open files.
+On systems with malloc, this is the recommended setting. 
+
+If you use the efs wrapper object, please look at the \code{efs\_init} documentation
+on how to pass the ioman pointer.
+
+\subsection{Pre-allocation}
+Our VFAT module supports the concept of pre-allocation. When writing files, for
+example log files, it is usually done with tiny bits a time. That is not the
+most efficient way, but it is usually the only solution that works on embedded
+systems. Every time you cross a cluster boundary with your write, the library 
+has to search a new cluster (reading the FAT), allocate it (write to the FAT).
+
+Clearly, this is a waste. The solution we came up with was preallocating. This means
+that when you write to a file, and fwrite sees that it needs to allocate more clusters,
+it will allocate too many of them. Since this is done in one operation, it requires
+usually only one read and one write to the FAT. This can save up to 50\% disc I/O
+in some applications. 
+
+The drawback is that the allocation happens in larger chunks, if you do this with
+many files, you might end up with larger than normal amounts of slackspace.
+
+We have also implemented this feature for directories. This is very useful if you
+have to create a lot of small files, since the directories grow by larger portions
+then.
+
+\subsubsection*{CLUSTER\_PREALLOC\_FILE}
+This number determines the default value of extra clusters that will be allocated
+with every sizeincrease. For example, if fwrite calculates that it needs 7 clusters,
+and \code{CLUSTER\_PREALLOC\_FILE} is 30 then efsl will allocate 37 clusters.
+This means (assuming every write needs 7 clusters) that the next 4 writes won't 
+require any write operation to the FAT (and due to the cluster cache the FAT will probably have to be read only once).
+
+The value you put here will be the default value, it can be changed per file
+object. (not yet implemented).
+
+\subsubsection*{CLUSTER\_PREALLOC\_DIRECTORY}
+The same explanation as above counts, only this value is used for directories.
+Generally you should not put this above 10 (unless your speed tests prove otherwise
+off course).
+
+\subsection{Endianness}
+The Microsoft FAT filesystem was originally created to be run on Intel compatible hardware.
+Therefore the Microsoft programmers decided to record all data on the disc in little endian
+format. Our library supports running on big endian devices. Here you can select whether your
+target CPU is little or big endian.
+
+Running on big endian will cause some performance lose because (rather simple) calculations have
+to be made to all numbers that have to interpreted by the library. This does not apply to
+data within the files off course.
+
+If the flag \code{\#LITTLE\_ENDIAN} is set, efsl will assume that your hardware is little endian.
+If you have a big endian system, you should comment this out. The function \code{fs\_checkEndian}
+will tell you if you have selected the right endianness, this is a check you might want to use.
+
+\subsection{Date and time}
+This flag determines if you want to have date and time support. With date and time support we
+mean that when you create or update a file the directory entry will receive the correct date and
+time stamp.
+
+Please refer to section \ref{dateandtime} to learn more about how this works.
+
+If you disable date and time support by commenting the \code{\#DATE\_TIME\_SUPPORT} then
+all dates and times that need to be created or updated will be set to zero, which in FAT land corresponds to the first of January of the year 1970.
+
+\subsection{Errors}
+When the library encounters an error, there be an error cascade moving from the error-causing object
+to the topmost object where the request started. Seen from userland this gives you extremely little
+information, usually nothing more than fail or success.
+
+Every object in the library has an optional error field, that contains a unique number that
+corresponds to a specific error. If you examine every error field you can see exactly where the
+error was started and what the effect was on the higher level objects.
+
+In a more practical sense you can display an error number or explanation to your users, giving
+yourself or them a better chance to correct or avoid the problem.
+Please see the section on error on what every value means.
+
+\subsection{Debug}
+This will turn debug support on or off. When enable (and your platform has a means of output that
+is supported by EFSL) it you will see messages you have created yourself, or that are printed by the
+library. By default the library is very silent, only very critical errors might get printed out.
+
+This option is depreciated and is left in for backward compatibility.

tools/efsl-0.3.6/docs/pages/dateandtime.tex

@@ -0,0 +1,34 @@
+\label{dateandtime}
+The EFSL library supports setting and updating all date and time fields
+supported by the filesystem. In order to do this the library must 
+know the current time and date at all times. Since it has to run everywhere,
+there is no standard mechanism to get the date/time, and some systems do
+not have a clock.
+
+With default configuration there is no date or time support, you have to
+turn it on manually in the configuration file \filename{config.h}.
+You will have to uncomment the field named \code{\#define DATE\_TIME\_SUPPORT},
+in order to activate date/time support.
+
+Furthermore you will have to provide the library with date and time information.
+A set of defines was used for this, when date/time support is not enabled,
+the defines automatically return \code{0x0000} for all time and date fields,
+so there is no performance suffer when you do not need date/time support.
+If you do need it you will have to provide 6 functions to the library
+that will tell it the time. Since these functions may get called often,
+it is highly recommended that you cache the time result somewhere so
+you can serve the library directly from ram. If you do not do this and
+your RTC request take a lot of time, you may suffer large losses in read
+or write operations depending on your hardware.
+
+The six functions are:
+\begin{itemize}
+    \item\code{euint16 efsl\_getYear(void)} 
+    \item\code{euint8 efsl\_getMonth(void)} 
+    \item\code{euint8 efsl\_getDay(void)} 
+    \item\code{euint8 efsl\_getHour(void)} 
+    \item\code{euint8 efsl\_getMinute(void)} 
+    \item\code{euint8 efsl\_getSecond(void)}
+\end{itemize}
+Internally the library will recalculate these numbers to match the
+filesystem that is currently in use. 

tools/efsl-0.3.6/docs/pages/debug.tex

@@ -0,0 +1,38 @@
+Since debugging on every device is completely different, a DBG macro is 
+implemented. On Linux for example, this macro will print the string given
+to the screen (using printf). On AVR, it will send debug strings through the
+UART. For compatibility with other devices, it is necessary that you always use
+the DBG-macro instead of a device-specific debugging commands.\newline
+\newline
+Because AVR-GCC puts strings in sram memory by default, every string should be
+surrounded by the TXT-macro. On AVR, this macro will put the string in program
+memory (flash), on any other device, this macro will be ignored.\newline
+\newline
+Example of a debug string:\\ 
+\code{DBG((TXT("This is test nr \%d of \%d.$\backslash$n"),id,total));}
+
+\subsubsection{Debugging on Linux}
+On linux, debugging strings are sent to stdout using printf.\newline
+\newline
+To enable debugging, set DEBUG in \filename{config.h}.
+\subsubsection{Debugging on AVR}
+On AVR, debugging strings are sent through the UART and can be read using
+a terminal like minicom (linux) or hyperterminal (windows). Standard, the
+first UART is used, but this can be changed in \filename{debug.c} to the
+second UART.\newline
+\newline
+To enable debugging:
+\begin{itemize}
+	\item{Set DEBUG in \filename{config.h}}
+	\item{Set CLK to the clock speed of your AVR in \filename{config.h}}
+	\item{Set BAUDRATE to the baudrate you want in \filename{config.h}}
+	\item{Initialize debugging in your program by calling \code{debug\_init()}}
+\end{itemize}
+Remark: when you use the serial port in your main program, make sure you
+use a different UART than the one efsl is using when sending debug string.
+\subsubsection{Debugging on DSP}
+On DSP, debugging strings are sent to Code Composer using the printf function.
+\newline\newline
+To enable debugging, set DEBUG in \filename{config.h}.\newline
+\newline
+Remark: this will only work when using a DSK-kit.

tools/efsl-0.3.6/docs/pages/driver.tex

@@ -0,0 +1,166 @@
+\label{hwdriver}
+This section will describe step by step how to write an hardware endpoint.
+You will be required to write your own endpoint in case non of the existing endpoints
+matches your hardware.
+
+First let's have a look at how EFSL is structured internally.\\\\
+\includegraphics[scale=0.4]{schematics/objectmodel.eps}\\
+
+As you can see we have created a linear object model that is quite simple.
+The file en filesystem object deal with handling the filesystem specific stuff.
+Below that we find the Partition object that is responsible for translating partition
+relative addressing into disc-based LBA addressing.
+
+The Disc object hold the partition table, and has a direct link to a cache manager, IOMan.
+In IOMan, all requests for disc sectors come together. IOMan will perform checks to see
+if sectors have to be read from disc (or from memory), or written back to disc.
+In the latter case (reading or writing to disc), a request is made to the hardware layer.
+
+The hardware interface has 3 responsibilities :
+\begin{itemize}
+	\item Initialize the hardware
+	\item Read sectors from disc
+	\item Write sectors to disc
+\end{itemize}
+
+All requests are \textsl{sector}based, a sector is a 512 byte piece from the disc, that is aligned to
+a 512 byte boundary.\\\\
+\includegraphics[scale=0.4]{schematics/sector.eps}
+
+In this example we will create a new endpoint that will add support for data over pigeon carrier
+for the EFSL. Initializing the hardware will require feeding the pigeon and telling it where the
+data is. Reading/Writing will entail giving the bird the sector and letting it fly.
+
+Perform the following steps:
+\begin{enumerate}
+
+	\item Choose a name for your endpoint\\
+	You will need this name to create the required defines in the source code.
+	For our example I've chosen the name \code{PIGEON\_CARRIER}.
+	For consistency the final name is then \code{HW\_ENDPOINT\_PIGEON\_CARRIER}.
+
+	\item Verify the sizes of integers\\
+	Open \filename{inc/types.h} and create a new entry for pigeon carriers. Perhaps
+	one of the existing sets is identical to yours and you can copy-paste it.
+
+	\item Add your endpoint to \filename{interface.h}\\
+	Locate the file \filename{interface.h} located in the directory \filename{inc/}
+	Add a pigeon entry (located above the \code{\#else ... NO INTERFACE DEFINED})
+\begin{lstlisting}
+#if defined(HW_ENDPOINT_0)
+   		#include "interfaces/0.h"
+#elif defined(HW_ENDPOINT_1)
+        #include "interfaces/1.h"
+#elif defined(HW_ENDPOINT_PIGEON_CARRIER)
+        #include "interfaces/pigeon.h"
+#else
+        #error "NO INTERFACE DEFINED - see interface.h"
+#endif
+\end{lstlisting}
+
+	\item Select your endpoint in \filename{conf/config.h}
+	
+	\item Create your sourcefiles\\
+	Create a header file in \filename{inc/} and a sourcefile in \filename {src/interfaces}.
+	In this example I'm using \filename{pigeon.h} and \filename{pigeon.c}.
+
+	\item Add your object file to the Makefile
+	Take the Makefile that works best on your platform (they should all work with
+	GNU/Make), or create a new one, using the existing one's as a template.
+	Make sure to include your new pigeon object to the library.
+	If you have an 'ar' like utility you can create a static library, else you may
+	have to create a new project containing all required source files.
+
+\end{enumerate}
+
+The basic framework is now complete, now all that's left to do is to write the code
+that will perform the actual flying work.
+
+\subsubsection{hwInterface}
+This structure represents the underlying hardware. There are some field that are required
+to be present (because EFSL uses them), but you may put in as much or a little as
+your driver requires to access the hardware.
+
+As always in embedded design it is recommended to keep this structure as small
+as possible.
+
+Example:
+\begin{lstlisting}
+struct hwInterface{
+	/* Field created for THIS hardware */
+	Pigeon pigeon;
+
+	/* Obligatory fields */
+	euint32 sectorCount;
+};
+typedef struct hwInterface hwInterface;
+\end{lstlisting}
+
+\subsubsection{if\_initInterface}
+This function will be called one time, when the hardware object is initialized 
+by \code{efs\_init()}. This code should bring the hardware in a ready to use 
+state.
+
+The function's prototype is\\
+\code{esint16 if\_initInterface(hwInterface *hw, euint8* opts);}
+
+Optionally but recommended you should fill in the hw->sectorCount field with the number
+of sectors. This field is used to validate sectorrequests.
+
+An example of a initInterface function :
+\begin{lstlisting}
+esint16 if_initInterface(hwInterface *hw, euint8* opts)
+{
+	/* Parse options */
+	parse_options(opts); /* Your application may not need options */
+
+	/* Check hardware state */
+	if(!alive(hw->pigeon)){
+		//printf("Pigeon died! :-(\n");
+		return(DEAD_PIGEON); /* #define DEAD_PIGEON -1 */
+	}
+
+	/* Initialize hardware */
+	feed(hw->pigeon);
+	pet (hw->pigeon);
+
+	/* Get sectors count */
+	hw->numSectors = ask_pigeon_num_sectors(hw->pigeon);
+
+	return(0);
+}
+\end{lstlisting}
+
+\subsubsection{if\_readBuf}
+This function is responsible to read a sector from the disc and store it in a user supplied buffer. You will receive the hardware object, an address and a pointer to memory for storing
+the buffer.
+
+Please be very careful to respect the boundaries of the buffers, since it will usually be IOMan
+calling this function, and if you have a buffer overflow you might corrupt the cache of the
+the next buffer, which in turn may produce extremely rare and impossible to retrace behavior.
+
+The function prototype is:\\
+\code{esint16 if\_readBuf(hwInterface *hw,euint32 address, euint8* buf);}
+
+The address is an LBA address, relative to the beginning of the disc. Should you be
+accessing an old hard disc, or a device which uses some other form of addressing you will have to
+recalculate the address to your own addressing scheme. Please note that there is no support
+for sectors that are not 512 bytes large.
+
+\begin{lstlisting}
+esint8 if_readBuf(hwInterface* hw,euint32 address,euint8* buf)
+{
+	Message new_message;
+
+	new_message.address = address;
+	new_message.command = READ;
+
+	pigeon_send(hw->pigeon,new_message); /* Launches the pigeon */
+	while(!pigeon_returned(hw->pigeon)); /* Wait until the bird is back */
+	memcpy(new_message.data,buf,512); /* Copy buffer */
+	return(0);
+}
+\end{lstlisting}
+
+\subsubsection{if\_writeBuf}
+The function \code{if\_writeBuf} works exactly the same as it's reading variant.

tools/efsl-0.3.6/docs/pages/efs_init.tex

@@ -0,0 +1,45 @@
+\subsubsection*{Purpose}
+Initializes the hardware and the software layer.
+\subsubsection*{Prototype}
+\code{esint8 efs\_init(EmbeddedFileSystem *efs, eint8* opts);}
+\subsubsection*{Arguments}
+Objects passed to \code{efs\_init}:
+\begin{itemize}
+	\item{\code{efs}: empty EmbeddedFileSystem object}
+	\item
+	{
+		\code{opts}: character string containing options, depending on what
+		interface you are using:
+		\begin{itemize}
+			\item{Linux: opts points to the path to the device}
+			\item{AVR: opts points to the card enable pin (TODO)}
+			\item{DSP: opts points to the card enable memory address (TODO)}
+		\end{itemize}
+	}
+\end{itemize}
+\subsubsection*{Return value}
+Returns 0 if no errors are detected.\\
+\newline
+Returns non-zero if a low-level error is detected:
+\begin{itemize}
+	\item{Returns -1 if the interface could not be initialized.}
+	\item{Returns -2 if the filesystem could not be initialized.}
+\end{itemize}
+\subsubsection*{Example}
+\lstset{numbers=left, stepnumber=1, numberstyle=\small, numbersep=5pt, tabsize=4}
+\begin{lstlisting}
+	#include "efs.h"
+
+	void main(void)
+	{
+		EmbeddedFileSystem efsl;
+		esint8 ret;
+
+		DBG((TXT("Will init efsl now.\n")));
+		ret=efs_init(&efsl,"/dev/sda");
+		if(ret==0)
+			DBG((TXT("Filesystem correctly initialized.\n")));
+		else
+			DBG((TXT("Could not initialize filesystem (err \%d).\n"),ret));
+	}
+\end{lstlisting}

tools/efsl-0.3.6/docs/pages/file_fclose.tex

@@ -0,0 +1,43 @@
+\subsubsection*{Purpose}
+Updates file records and closes file object.
+\subsubsection*{Prototype}
+\code{esint8 file\_fclose(File *file);}
+\subsubsection*{Arguments}
+Objects passed to \code{file\_fopen}:
+\begin{itemize}
+	\item{\code{file}: pointer to a File object}
+\end{itemize}
+\subsubsection*{Return value}
+Returns 0 if no errors are detected.\\
+\newline
+Returns non-zero if an error is detected.
+\subsubsection*{Example}
+\lstset{numbers=left, stepnumber=1, numberstyle=\small, numbersep=5pt, tabsize=4}
+\begin{lstlisting}
+	#include "efs.h"
+
+	void main(void)
+	{
+		EmbeddedFileSystem efsl;
+		File file;
+
+		/* Initialize efsl */
+		DBG((TXT("Will init efsl now.\n")));
+		if(efs_init(&efsl,"/dev/sda")!=0){
+			DBG((TXT("Could not initialize filesystem (err \%d).\n"),ret));
+			exit(-1);
+		}
+		DBG((TXT("Filesystem correctly initialized.\n")));
+
+		/* Open file for reading */
+		if(file_fopen(&file, &efsl.myFs, "read.txt", 'r')!=0){
+			DBG((TXT("Could not open file for reading.\n")));
+			exit(-1);
+		}
+		DBG((TXT("File opened for reading.\n")));
+
+		/* Close file & filesystem */
+		fclose(&file);
+		fs_umount(&efs.myFs);
+	}
+\end{lstlisting}

tools/efsl-0.3.6/docs/pages/file_fopen.tex

@@ -0,0 +1,70 @@
+\subsubsection*{Purpose}
+Searches for file and initializes the file object.
+\subsubsection*{Prototype}
+\code{esint8 file\_fopen(File *file, FileSystem *fs, eint8 *filename, eint8 mode);}
+\subsubsection*{Arguments}
+Objects passed to \code{file\_fopen}:
+\begin{itemize}
+	\item{\code{file}: pointer to a File object}
+	\item{\code{fs}: pointer to the FileSystem object}
+	\item{\code{filename}: pointer to the path + filename}
+	\item
+	{
+		\code{mode}: mode of opening, this can be:
+		\begin{itemize}
+			\item{'r': open file for reading}
+			\item{'w': open file for writing}
+			\item{'a': open file for appending}
+		\end{itemize}
+	}
+\end{itemize}
+\subsubsection*{Return value}
+Returns 0 if no errors are detected.\\
+\newline
+Returns non-zero if an error is detected:
+\begin{itemize}
+	\item{Returns -1 if the file you are trying to open for reading could not 
+		be found.}
+	\item{Returns -2 if the file you are trying to open for writing already
+		exists.}
+	\item{Returns -3 if no free spot could be found for writing or appending.}
+	\item{Returns -4 if mode is not correct (if it is not 'r', 'w' or 'a').}
+\end{itemize}
+\subsubsection*{Example}
+\lstset{numbers=left, stepnumber=1, numberstyle=\small, numbersep=5pt, tabsize=4}
+\begin{lstlisting}
+	#include "efs.h"
+
+	void main(void)
+	{
+		EmbeddedFileSystem efsl;
+		File file_read, file_write;
+
+		/* Initialize efsl */
+		DBG((TXT("Will init efsl now.\n")));
+		if(efs_init(&efsl,"/dev/sda")!=0){
+			DBG((TXT("Could not initialize filesystem (err \%d).\n"),ret));
+			exit(-1);
+		}
+		DBG((TXT("Filesystem correctly initialized.\n")));
+
+		/* Open file for reading */
+		if(file_fopen(&file_read, &efsl.myFs, "read.txt", 'r')!=0){
+			DBG((TXT("Could not open file for reading.\n")));
+			exit(-1);
+		}
+		DBG((TXT("File opened for reading.\n")));
+
+		/* Open file for writing */
+		if(file_fopen(&file_write, &efsl.myFs, "write.txt", 'w')!=0){
+			DBG((TXT("Could not open file for writing.\n")));
+			exit(-2);
+		}
+		DBG((TXT("File opened for writing.\n")));
+
+		/* Close files & filesystem */
+		fclose(&file_read);
+		fclose(&file_write);
+		fs_umount(&efs.myFs);
+	}
+\end{lstlisting}

tools/efsl-0.3.6/docs/pages/file_read.tex

@@ -0,0 +1,51 @@
+\subsubsection*{Purpose}
+Reads a file and puts it's content in a buffer.
+\subsubsection*{Prototype}
+\code{euint32 file\_read (File *file, euint32 size, euint8 *buf);}
+\subsubsection*{Arguments}
+Objects passed to \code{file\_read}:
+\begin{itemize}
+	\item{\code{file}: pointer to a File object}
+	\item{\code{size}: amount of bytes you want to read / put in buf}
+	\item{\code{buf}: pointer to the buffer you want to store the data}
+\end{itemize}
+\subsubsection*{Return value}
+Returns the amount of bytes read.
+\subsubsection*{Example}
+\lstset{numbers=left, stepnumber=1, numberstyle=\small, numbersep=5pt, tabsize=4}
+\begin{lstlisting}
+	#include "efs.h"
+
+	void main(void)
+	{
+		EmbeddedFileSystem efsl;
+		euint8 buffer[512];
+		euint16 e, f;
+		File file;
+
+		/* Initialize efsl */
+		DBG((TXT("Will init efsl now.\n")));
+		if(efs_init(&efsl,"/dev/sda")!=0){
+			DBG((TXT("Could not initialize filesystem (err \%d).\n"),ret));
+			exit(-1);
+		}
+		DBG((TXT("Filesystem correctly initialized.\n")));
+
+		/* Open file for reading */
+		if(file_fopen(&file, &efsl.myFs, "read.txt", 'r')!=0){
+			DBG((TXT("Could not open file for reading.\n")));
+			exit(-1);
+		}
+		DBG((TXT("File opened for reading.\n")));
+
+		/* Read file and print content */
+		while((e=file_read(&file,512,buffer))){
+			for(f=0;f<e;f++)
+				DBG((TXT("\%c"),buffer[f]));
+		}
+
+		/* Close file & filesystem */
+		fclose(&file);
+		fs_umount(&efs.myFs);
+	}
+\end{lstlisting}

tools/efsl-0.3.6/docs/pages/file_write.tex

@@ -0,0 +1,52 @@
+\subsubsection*{Purpose}
+Reads a file and puts it's content in a buffer.
+\subsubsection*{Prototype}
+\code{euint32 file\_write(File *file, euint32 size, euint8 *buf)}
+\subsubsection*{Arguments}
+Objects passed to \code{file\_read}:
+\begin{itemize}
+	\item{\code{file}: pointer to a File object}
+	\item{\code{size}: amount of bytes you want to write}
+	\item{\code{buf}: pointer to the buffer you want to write the data from}
+\end{itemize}
+\subsubsection*{Return value}
+Returns the amount of bytes written.
+\subsubsection*{Example}
+\lstset{numbers=left, stepnumber=1, numberstyle=\small, numbersep=5pt, tabsize=4}
+\begin{lstlisting}
+	#include <string.h>
+	#include "efs.h"
+
+	void main(void)
+	{
+		EmbeddedFileSystem efsl;
+		euint8 *buffer = "This is a test.\n";
+		euint16 e=0;
+		File file;
+
+		/* Initialize efsl */
+		DBG((TXT("Will init efsl now.\n")));
+		if(efs_init(&efsl,"/dev/sda")!=0){
+			DBG((TXT("Could not initialize filesystem (err \%d).\n"),ret));
+			exit(-1);
+		}
+		DBG((TXT("Filesystem correctly initialized.\n")));
+
+		/* Open file for writing */
+		if(file_fopen(&file, &efsl.myFs, "write.txt", 'w')!=0){
+			DBG((TXT("Could not open file for writing.\n")));
+			exit(-1);
+		}
+		DBG((TXT("File opened for reading.\n")));
+
+		/* Write buffer to file */
+		if( file_write(&file,strlen(buffer),buffer) == strlen(buffer) )
+			DBG((TXT("File written.\n")));
+		else
+			DBG((TXT("Could not write file.\n")));
+		
+		/* Close file & filesystem */
+		fclose(&file);
+		fs_umount(&efs.myFs);
+	}
+\end{lstlisting}

tools/efsl-0.3.6/docs/pages/ioman.tex

@@ -0,0 +1,236 @@
+\label{ioman}
+The IOManager that is the second lowest layer of the embedded filesystems library is
+responsible for coordinating disk input and output, as well as managing a caching 
+system. This documentation describes the second implementation of IOMan, which includes
+features such as :
+\begin{itemize}
+	\item Delayed write
+	\item Buffer reference statistics
+	\item Buffer exportable to users
+	\item Support for cached direct I/O as well as indirect I/O
+	\item Can allocate memory itself (on the stack), or you can do it yourself (heap)
+\end{itemize}
+
+\subsubsection{General operation}
+Because of the limited memory nature of most embedded devices for which this library is
+intended several design decisions were made to minimize memory usage. Some of these required
+that some concessions be made. One of them is that there is no memory protection, since
+most devices don't have the memory to support this, or lack the ability to protect memory.
+
+When IOMan receives a request for a sector, it will make sure it has the sector in it's
+own memory cache and then give the caller a \code{euint8*} pointer to that cache. The
+user is then free to do operations on that memory, and when it is done it should tell
+IOMan so. Several things can go wrong with this: you can request a sector for reading,
+and then write in the cache, thereby corrupting it. Or you can request a sector, but never
+release it (sort of a memory leak), which may result in very bad performance, and a deadlocked
+I/O manager.
+
+But, taking into account that very little memory is required for operation, if you follow the I/O man rules, you will get a pretty clever caching object that will make writing new filesystems
+a simple job.
+
+\subsubsection{Cache decisions}
+Whenever ioman receives a request to fetch a sector, be it read or write, it will have to make sure
+it has, or can get the sector you want. It follows a certain path to do this.\label{cachemethod}
+\begin{enumerate}
+	\item First of all it will scan it's cache range to see if it already has the sector.
+		If it is found, and it was a write request, the cache is marked writable. Usage and
+		reference get incremented and a pointer	is then returned to the requester. If the
+		buffer cannot be found, ioman proceeds to step 2.
+	\item When an item is not in cache, it has to be fetched from the disc, the best place to
+		store it is in memory that does not contain anything useful yet. Ioman will search for
+		a place that is currently not occupied by anything. If it is found, the sector will be 
+		placed on that spot and a pointer returned. Else, ioman proceeds to step 3.
+	\item Since there is no other choice than to overwrite an already existing cache, ioman will
+		try to find one that is the least interesting. First it will search for caches that
+		are marked not writable, and have no users. Ioman will then select the one that has the
+		least references. If there are none, it will search for caches that don't have users and
+		are writable. Once again the one with the least references is returned. Since it is 
+		writable ioman will flush it to disc first. After that the requested sector is put there
+		and a pointer returned. If it cannot find any caches that have no users it will go to
+		step 4.
+	\item Since every cache spot is in use ioman will have to select one for overallocation.
+		Since this selection depends on many factors and is rather complex, a points
+		system is used. The algorithm considers every cache place and allocated a certain number
+		of points to it, lower means that it is a better candidate for overallocation. Fifty 
+		percent of the points goes to the cache being marked writable, since having to write
+		a sector is expensive. Another 35 percent goes to how many overallocations have 
+		already been done on that spot. It doesn't make sense to always overalloc the same buffer,
+		it is better to spread this. The remaining 15 percent is determined by the number of 
+		references to the sector. 
+		
+		After a function has selected the best candidate, ioman will overwrite that spot with
+		the new sector. It will also push the status and sectornumber onto that cache's 
+		retrieval stack, so that when the sector is released, the older sector can be retrieved.
+		If this fails go to step 5.
+	\item When ioman gets here it will return a (nil) pointer and flag an error.
+\end{enumerate}
+
+\subsubsection{Functions}
+
+\begin{longtable}{|p{0.35\textwidth}|p{0.65\textwidth}|}
+	
+	\hline
+	\multicolumn{2}{|c|}{
+		\textbf{I/O Manager Functions}
+	} \\
+	\multicolumn{2}{|c|}{} \\
+	\hline
+	\hline
+	\endfirsthead
+	
+	\hline
+	\multicolumn{2}{|c|}{\textbf{I/O Manager Functions (continued)}} \\
+	\hline
+	\endhead
+
+	\hline
+	\endfoot
+	
+	\hline 
+	\endlastfoot
+
+	\code{ioman\_init} & \code{esint8 (IOManager *ioman, hwInterface *iface, euint8* bufferarea)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function is called to initialize the internal state of the I/O manager. It should be the
+		first function you call on an ioman object. Failure to do so will result in undefined behavior.
+		The function clears all internal variables to a default safe state, and sets up it's memory region.
+		
+		There are two possibilities, if you supply a 0 pointer then a function will be called that contains
+		a static variable with a size of 512 * \code{IOMAN\_NUMBUFFERS}, else, it will be assumed that
+		you allocated that memory yourself and the pointer you provided will be used.
+	}\\
+	\hline
+
+	\code{\external{ioman\_reset}} & \code{void (IOManager *ioman)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function is called from the initialization function, it does the actual reset of all variables.
+	}\\
+	\hline
+
+	\code{ioman\_pop} & \code{esint8 (IOManager *ioman,euint16 bufplace)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function fetches settings (sector number, usage and status register) from stack \code{bufplace}
+		and puts it back on the main registers. It will return 0 on successful pop, and -1 on error, or when
+		there are no elements to pop.
+	}\\
+	\hline
+
+	\code{ioman\_push} & \code{esint8 (IOManager *ioman,euint16 bufplace)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function pushes the settings of cache \code{bufplace} onto that cache's stack. It does not 
+		destroy the data in the main registers. It will return 0 for a successful push, and -1 on error, or
+		when there is no more space to push a new element.
+	}\\
+	\hline
+
+	\code{ioman\_readSector} & \code{esint8 (IOManager *ioman,euint32 address,euint8* buf)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function does the actual reading from the hardware, it is the one and only function that
+		calls \code{if\_readBuf()}, here a retry on failure policy could be implemented. This function
+		will correctly stream errors upwards. All calls made to this function in the iomanager are checked
+		for their return value, so errors propagate correctly upwards. 
+		
+		The address it receives is relative to the beginning of the disc, no assumptions about \code{buf}
+		may be made, it can be withing ioman's cache memory range, but it could also be a buffer from userspace.
+		
+		The function will return 0 on success and -1 on failure.
+	}\\
+	\hline
+
+	\code{ioman\_writeSector} & \code{esint8 (IOManager *ioman, euint32 address, euint8* buf)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function does the actual writing to the hardware, it is the one and only function that
+		calls \code{if\_writeBuf()}, here a retry on failure policy could be implemented. This function
+		will correctly stream errors upwards. All calls made to this function in the iomanager are checked
+		for their return value, so errors propagate correctly upwards. 
+		
+		The address it receives is relative to the beginning of the disc, no assumptions about \code{buf}
+		may be made, it can be withing ioman's cache memory range, but it could also be a buffer from userspace.
+		
+		The function will return 0 on success and -1 on failure.
+	}\\
+	\hline
+
+	\code{\external{ioman\_getSector}} & \code{euint8* (IOManager *ioman,euint32 address, euint8 mode)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function is the one that is called most from the higher library routines. It is the function
+		that will present you with a pointer to memory containing sector number \code{address}. There are
+		several modes that you can select or combine.\newline
+		\begin{tabular}{|l|p{.6\textwidth}|}
+		\hline
+		\code{IOM\_MODE\_READONLY} & This attribute says to ioman that it needs a buffer only for reading.
+		This does not mean that you are allowed to write to it, doing so results in undefined behavior.
+		You cannot combine this option with the \code{IOM\_MODE\_READWRITE} option.\\
+		\code{IOM\_MODE\_READWRITE} & This attribute says to ioman that it would like not only to read from
+		but also to write to that buffer. When you release the sector your changes will be written to disc.
+		This may not happen immediately though, if you want to force it take a look at the 
+		\code{ioman\_flushRange()} function. This option cannot be combined with the 
+		\code{IOM\_MODE\_READONLY} option.\\
+		\code{IOM\_MODE\_EXP\_REQ} & This option tell the iomanager that the request is exceptional, for
+		example that the request is unlikely to happen again. The library adds this flags to the options
+		when requesting the bootrecord, to prevent it from getting a high rating, which should prevent it
+		from being removed from the cache.\\
+		\hline
+		\end{tabular}\newline
+		These options can be combined by ORing them together.
+	}\\
+	\hline
+
+	\code{ioman\_releaseSector} & \code{esint8 (IOManager *ioman,euint8* buf)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function tells ioman that you are done with one of the cache elements and that it can do
+		it's bidding with it. Forgetting to call this function may result in deadlocked iomanagers.
+	}\\
+	\hline
+
+	\code{ioman\_directSectorRead} & \code{esint8 (IOManager *ioman,euint32 address, euint8* buf)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This is a variant of the normal getsector. Sometimes you need a sector from the disc, but all
+		you want to do with it is export it directly to userbuffers. It would be foolish to force a
+		caching of that sector if there is external space available for it.
+		
+		This function will fetch sector \code{address} from disc and place it in the memory pointed to
+		by \code{buf}. Should there be a free spot available the sector will be cached there, so that
+		it may be used in the future. If the sector was available from cache in the first place, it
+		will simply be \code{memCpy()}'d from the cache to the userspace buffer.
+	}\\
+	\hline
+
+	\code{ioman\_directSectorWrite} & \code{esint8 (IOManager *ioman,euint32 address, euint8* buf)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function is based on the same philosophy as \code{ioman\_directSectorRead()}, however,
+		contrary to what the name may lead to believe it also passes through a caching layer. If
+		there is an unused spot (or the sector is in cache), the userbuffer will be copied to that
+		spot and will remain there until the space is needed or a flush is forced.
+	}\\
+	\hline
+
+	\code{ioman\_flushRange} & \code{esint8 (IOManager *ioman,euint32 address\_low, euint32 address\_high)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+		This function is used to ask ioman to flush all sectors to disc that are in a specific
+		range. For example you might want to flush a specific range of your filesystem without
+		needlessly disturb other parts. The range is \code{address\_low <= n => address\_high}.
+		Off course only sectors that are marked as writable are flushed to disc.
+	}\\
+	\hline
+
+	\code{ioman\_flushAll} & \code{esint8 (IOManager *ioman)} \\
+	\hline
+	\multicolumn{2}{|p{\textwidth}|}{
+	This function will cause ioman to flush out all cache units that are marked writable. If
+	they do not have any users, they will lose their writable mark.
+	}\\
+	\hline
+\end{longtable}
+

tools/efsl-0.3.6/docs/pages/lgpl.txt

@@ -0,0 +1,489 @@
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+     51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
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+
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+
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tools/efsl-0.3.6/docs/pages/license.tex

@@ -0,0 +1,12 @@
+This library is subject to the Lesser General Public License version 2.1.
+We have chosen this license in stead of the BSD license because we feel strongly
+that more effort was needed in the field of quality software in the embedded field.
+
+Please note that if you make changes to the library itself, those modifications must be
+made public, but that writing support for new hardware and linking it into the library,
+does not fall under this category. However, we would off course appreciate it tremendously
+if you would send us in code to support new hardware.
+
+\subsection{GNU Lesser General Public License}
+\verbatiminput{pages/lgpl.txt}
+