added PS/2 to USB converter use V-USB as protocol stack

12 files changed, 1971 insertions, 0 deletions

diff --git a/ps2_vusb/Makefile b/ps2_vusb/Makefile
new file mode 100644
index 000000000..48748a749
--- /dev/null
+++ b/ps2_vusb/Makefile
@@ -0,0 +1,50 @@
+# Target file name (without extension).
+TARGET = ps2_vusb
+
+# Directory common source filess exist
+COMMON_DIR = ..
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+# keyboard dependent files
+TARGET_SRC =	main.c \
+		keyboard_vusb.c \
+		layer.c \
+		keymap.c \
+		matrix.c \
+		ps2.c \
+		print.c \
+		util.c \
+		timer.c \
+		usart_print.c
+
+OPT_DEFS = -DDEBUG_LEVEL=0
+
+
+# MCU name, you MUST set this to match the board you are using
+# type "make clean" after changing this, so all files will be rebuilt
+#MCU = at90usb162       # Teensy 1.0
+#MCU = atmega32u4       # Teensy 2.0
+#MCU = at90usb646       # Teensy++ 1.0
+#MCU = at90usb1286      # Teensy++ 2.0
+MCU = atmega168
+
+
+# Processor frequency.
+#   Normally the first thing your program should do is set the clock prescaler,
+#   so your program will run at the correct speed.  You should also set this
+#   variable to same clock speed.  The _delay_ms() macro uses this, and many
+#   examples use this variable to calculate timings.  Do not add a "UL" here.
+F_CPU = 16000000
+
+
+# Build Options
+#   comment out to disable the options.
+#
+#MOUSEKEY_ENABLE = yes	# Mouse keys
+#USB_EXTRA_ENABLE = yes	# Enhanced feature for Windows(Audio control and System control)
+#USB_NKRO_ENABLE = yes	# USB Nkey Rollover
+
+
+include $(COMMON_DIR)/Makefile.vusb
diff --git a/ps2_vusb/Makefile.orig b/ps2_vusb/Makefile.orig
new file mode 100644
index 000000000..2bd1ed584
--- /dev/null
+++ b/ps2_vusb/Makefile.orig
@@ -0,0 +1,165 @@
+# Name: Makefile
+# Project: hid-mouse example
+# Author: Christian Starkjohann
+# Creation Date: 2008-04-07
+# Tabsize: 4
+# Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
+# License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
+# This Revision: $Id: Makefile 692 2008-11-07 15:07:40Z cs $
+
+DEVICE  = atmega168
+F_CPU   = 16000000	# in Hz
+FUSE_L  = # see below for fuse values for particular devices
+FUSE_H  = 
+#AVRDUDE = avrdude -c usbasp -p $(DEVICE) # edit this line for your programmer
+AVRDUDE = avrdude -P COM1 -b 19200 -c arduino -p $(DEVICE)
+
+CFLAGS  = -Iusbdrv -I. -DDEBUG_LEVEL=1
+OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o main.o
+
+COMPILE = avr-gcc -Wall -Os -DF_CPU=$(F_CPU) $(CFLAGS) -mmcu=$(DEVICE)
+
+##############################################################################
+# Fuse values for particular devices
+##############################################################################
+# If your device is not listed here, go to
+# http://palmavr.sourceforge.net/cgi-bin/fc.cgi
+# and choose options for external crystal clock and no clock divider
+#
+################################## ATMega8 ##################################
+# ATMega8 FUSE_L (Fuse low byte):
+# 0x9f = 1 0 0 1   1 1 1 1
+#        ^ ^ \ /   \--+--/
+#        | |  |       +------- CKSEL 3..0 (external >8M crystal)
+#        | |  +--------------- SUT 1..0 (crystal osc, BOD enabled)
+#        | +------------------ BODEN (BrownOut Detector enabled)
+#        +-------------------- BODLEVEL (2.7V)
+# ATMega8 FUSE_H (Fuse high byte):
+# 0xc9 = 1 1 0 0   1 0 0 1 <-- BOOTRST (boot reset vector at 0x0000)
+#        ^ ^ ^ ^   ^ ^ ^------ BOOTSZ0
+#        | | | |   | +-------- BOOTSZ1
+#        | | | |   + --------- EESAVE (don't preserve EEPROM over chip erase)
+#        | | | +-------------- CKOPT (full output swing)
+#        | | +---------------- SPIEN (allow serial programming)
+#        | +------------------ WDTON (WDT not always on)
+#        +-------------------- RSTDISBL (reset pin is enabled)
+#
+############################## ATMega48/88/168 ##############################
+# ATMega*8 FUSE_L (Fuse low byte):
+# 0xdf = 1 1 0 1   1 1 1 1
+#        ^ ^ \ /   \--+--/
+#        | |  |       +------- CKSEL 3..0 (external >8M crystal)
+#        | |  +--------------- SUT 1..0 (crystal osc, BOD enabled)
+#        | +------------------ CKOUT (if 0: Clock output enabled)
+#        +-------------------- CKDIV8 (if 0: divide by 8)
+# ATMega*8 FUSE_H (Fuse high byte):
+# 0xde = 1 1 0 1   1 1 1 0
+#        ^ ^ ^ ^   ^ \-+-/
+#        | | | |   |   +------ BODLEVEL 0..2 (110 = 1.8 V)
+#        | | | |   + --------- EESAVE (preserve EEPROM over chip erase)
+#        | | | +-------------- WDTON (if 0: watchdog always on)
+#        | | +---------------- SPIEN (allow serial programming)
+#        | +------------------ DWEN (debug wire enable)
+#        +-------------------- RSTDISBL (reset pin is enabled)
+#
+############################## ATTiny25/45/85 ###############################
+# ATMega*5 FUSE_L (Fuse low byte):
+# 0xef = 1 1 1 0   1 1 1 1
+#        ^ ^ \+/   \--+--/
+#        | |  |       +------- CKSEL 3..0 (clock selection -> crystal @ 12 MHz)
+#        | |  +--------------- SUT 1..0 (BOD enabled, fast rising power)
+#        | +------------------ CKOUT (clock output on CKOUT pin -> disabled)
+#        +-------------------- CKDIV8 (divide clock by 8 -> don't divide)
+# ATMega*5 FUSE_H (Fuse high byte):
+# 0xdd = 1 1 0 1   1 1 0 1
+#        ^ ^ ^ ^   ^ \-+-/ 
+#        | | | |   |   +------ BODLEVEL 2..0 (brownout trigger level -> 2.7V)
+#        | | | |   +---------- EESAVE (preserve EEPROM on Chip Erase -> not preserved)
+#        | | | +-------------- WDTON (watchdog timer always on -> disable)
+#        | | +---------------- SPIEN (enable serial programming -> enabled)
+#        | +------------------ DWEN (debug wire enable)
+#        +-------------------- RSTDISBL (disable external reset -> enabled)
+#
+################################ ATTiny2313 #################################
+# ATTiny2313 FUSE_L (Fuse low byte):
+# 0xef = 1 1 1 0   1 1 1 1
+#        ^ ^ \+/   \--+--/
+#        | |  |       +------- CKSEL 3..0 (clock selection -> crystal @ 12 MHz)
+#        | |  +--------------- SUT 1..0 (BOD enabled, fast rising power)
+#        | +------------------ CKOUT (clock output on CKOUT pin -> disabled)
+#        +-------------------- CKDIV8 (divide clock by 8 -> don't divide)
+# ATTiny2313 FUSE_H (Fuse high byte):
+# 0xdb = 1 1 0 1   1 0 1 1
+#        ^ ^ ^ ^   \-+-/ ^
+#        | | | |     |   +---- RSTDISBL (disable external reset -> enabled)
+#        | | | |     +-------- BODLEVEL 2..0 (brownout trigger level -> 2.7V)
+#        | | | +-------------- WDTON (watchdog timer always on -> disable)
+#        | | +---------------- SPIEN (enable serial programming -> enabled)
+#        | +------------------ EESAVE (preserve EEPROM on Chip Erase -> not preserved)
+#        +-------------------- DWEN (debug wire enable)
+
+
+# symbolic targets:
+help:
+	@echo "This Makefile has no default rule. Use one of the following:"
+	@echo "make hex ....... to build main.hex"
+	@echo "make program ... to flash fuses and firmware"
+	@echo "make fuse ...... to flash the fuses"
+	@echo "make flash ..... to flash the firmware (use this on metaboard)"
+	@echo "make clean ..... to delete objects and hex file"
+
+hex: main.hex
+
+program: flash fuse
+
+# rule for programming fuse bits:
+fuse:
+	@[ "$(FUSE_H)" != "" -a "$(FUSE_L)" != "" ] || \
+		{ echo "*** Edit Makefile and choose values for FUSE_L and FUSE_H!"; exit 1; }
+	$(AVRDUDE) -U hfuse:w:$(FUSE_H):m -U lfuse:w:$(FUSE_L):m
+
+# rule for uploading firmware:
+flash: main.hex
+	$(AVRDUDE) -U flash:w:main.hex:i
+
+# rule for deleting dependent files (those which can be built by Make):
+clean:
+	rm -f main.hex main.lst main.obj main.cof main.list main.map main.eep.hex main.elf *.o usbdrv/*.o main.s usbdrv/oddebug.s usbdrv/usbdrv.s
+
+# Generic rule for compiling C files:
+.c.o:
+	$(COMPILE) -c $< -o $@
+
+# Generic rule for assembling Assembler source files:
+.S.o:
+	$(COMPILE) -x assembler-with-cpp -c $< -o $@
+# "-x assembler-with-cpp" should not be necessary since this is the default
+# file type for the .S (with capital S) extension. However, upper case
+# characters are not always preserved on Windows. To ensure WinAVR
+# compatibility define the file type manually.
+
+# Generic rule for compiling C to assembler, used for debugging only.
+.c.s:
+	$(COMPILE) -S $< -o $@
+
+# file targets:
+
+# Since we don't want to ship the driver multipe times, we copy it into this project:
+usbdrv:
+	cp -r ../usbdrv .
+
+main.elf: usbdrv $(OBJECTS)	# usbdrv dependency only needed because we copy it
+	$(COMPILE) -o main.elf $(OBJECTS)
+
+main.hex: main.elf
+	rm -f main.hex main.eep.hex
+	avr-objcopy -j .text -j .data -O ihex main.elf main.hex
+	avr-size main.hex
+
+# debugging targets:
+
+disasm:	main.elf
+	avr-objdump -d main.elf
+
+cpp:
+	$(COMPILE) -E main.c
diff --git a/ps2_vusb/config.h b/ps2_vusb/config.h
new file mode 100644
index 000000000..1d2a28307
--- /dev/null
+++ b/ps2_vusb/config.h
@@ -0,0 +1,36 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x6512
+#define MANUFACTURER    t.m.k.
+#define PRODUCT         PS/2 keyboard converter
+#define DESCRIPTION     convert PS/2 keyboard to USB
+
+/* matrix size */
+#define MATRIX_ROWS 32  // keycode bit: 3-0
+#define MATRIX_COLS 8   // keycode bit: 6-4
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* USB NKey Rollover */
+#ifdef USB_NKRO_ENABLE
+#endif
+
+/* mouse keys */
+#ifdef MOUSEKEY_ENABLE
+#   define MOUSEKEY_DELAY_TIME 255
+#endif
+
+/* PS/2 mouse */
+#define PS2_CLOCK_PORT  PORTD
+#define PS2_CLOCK_PIN   PIND
+#define PS2_CLOCK_DDR   DDRD
+#define PS2_CLOCK_BIT   6
+#define PS2_DATA_PORT   PORTD
+#define PS2_DATA_PIN    PIND
+#define PS2_DATA_DDR    DDRD
+#define PS2_DATA_BIT    7
+
+#endif
diff --git a/ps2_vusb/keyboard.h b/ps2_vusb/keyboard.h
new file mode 100644
index 000000000..87c61139b
--- /dev/null
+++ b/ps2_vusb/keyboard.h
@@ -0,0 +1,27 @@
+#ifndef KEYBOARD_H
+#define KEYBOARD_H
+
+#include "stdbool.h"
+
+
+#define REPORT_KEYS 6
+typedef struct{
+    uint8_t mods;
+    uint8_t rserved;    // not used
+    uint8_t keys[REPORT_KEYS];
+}report_t;
+
+
+//extern report_t *report;
+//extern report_t *report_prev;
+
+report_t *report_get(void);
+bool report_has_key(void);
+void report_send(void);
+void report_add_mod(uint8_t mod);
+void report_add_key(uint8_t key);
+void report_add_code(uint8_t code);
+void report_swap(void);
+void report_clear(void);
+
+#endif
diff --git a/ps2_vusb/keyboard_vusb.c b/ps2_vusb/keyboard_vusb.c
new file mode 100644
index 000000000..6ea195759
--- /dev/null
+++ b/ps2_vusb/keyboard_vusb.c
@@ -0,0 +1,156 @@
+#include "usbdrv.h"
+#include "usb_keycodes.h"
+#include "keyboard.h"
+#include "print.h"
+
+static report_t report0;
+static report_t report1;
+static report_t *report = &report0;
+static report_t *report_prev = &report1;
+
+void report_send(void)
+{
+    if (usbInterruptIsReady()){
+        usbSetInterrupt((void *)report, sizeof(*report));
+    }
+}
+
+report_t *report_get(void)
+{
+    return report;
+}
+
+uint8_t report_mods(void)
+{
+    return report->mods;
+}
+
+uint8_t *report_keys(void)
+{
+    return report->keys;
+}
+
+bool report_has_key(void)
+{
+    for (int i = 0; i < REPORT_KEYS; i++) {
+        if (report->keys[i])
+            return true;
+    }
+    return false;
+}
+
+void report_add_mod(uint8_t mod)
+{
+    report->mods |= mod;
+}
+
+void report_add_key(uint8_t code)
+{
+    int8_t i = 0;
+    int8_t empty = -1;
+    for (; i < REPORT_KEYS; i++) {
+        if (report_prev->keys[i] == code) {
+            report->keys[i] = code;
+            break;
+        }
+        if (empty == -1 && report_prev->keys[i] == KB_NO && report->keys[i] == KB_NO) {
+            empty = i;
+        }
+    }
+    if (i == REPORT_KEYS && empty != -1) {
+        report->keys[empty] = code;
+    }
+}
+
+void report_add_code(uint8_t code)
+{
+    if (IS_MOD(code)) {
+        report_add_mod(code);
+    } else {
+        report_add_key(code);
+    }
+}
+
+void report_swap(void)
+{
+    report_t *tmp = report_prev;
+    report_prev = report;
+    report = tmp;
+}
+
+void report_clear(void)
+{
+    report->mods = 0;
+    for (int8_t i = 0; i < REPORT_KEYS; i++) {
+        report->keys[i] = 0;
+    }
+}
+
+
+static uchar    idleRate;   /* repeat rate for keyboards, never used for mice */
+usbMsgLen_t usbFunctionSetup(uchar data[8])
+{
+usbRequest_t    *rq = (void *)data;
+
+    print("Setup: ");
+    if((rq->bmRequestType & USBRQ_TYPE_MASK) == USBRQ_TYPE_CLASS){    /* class request type */
+        print("CLASS: ");
+        phex(rq->bRequest);
+        if(rq->bRequest == USBRQ_HID_GET_REPORT){
+            print("GET_REPORT");
+            /* we only have one report type, so don't look at wValue */
+            usbMsgPtr = (void *)report;
+            return sizeof(*report);
+        }else if(rq->bRequest == USBRQ_HID_GET_IDLE){
+            print("GET_IDLE: ");
+            phex(idleRate);
+            usbMsgPtr = &idleRate;
+            return 1;
+        }else if(rq->bRequest == USBRQ_HID_SET_IDLE){
+            idleRate = rq->wValue.bytes[1];
+            print("SET_IDLE: ");
+            phex(idleRate);
+        }
+        print("\n");
+    }else{
+        print("VENDOR\n");
+        /* no vendor specific requests implemented */
+    }
+    return 0;   /* default for not implemented requests: return no data back to host */
+}
+
+
+PROGMEM char usbHidReportDescriptor[USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH] = {
+    0x05, 0x01,          // Usage Page (Generic Desktop),
+    0x09, 0x06,          // Usage (Keyboard),
+    0xA1, 0x01,          // Collection (Application),
+    0x75, 0x01,          //   Report Size (1),
+    0x95, 0x08,          //   Report Count (8),
+    0x05, 0x07,          //   Usage Page (Key Codes),
+    0x19, 0xE0,          //   Usage Minimum (224),
+    0x29, 0xE7,          //   Usage Maximum (231),
+    0x15, 0x00,          //   Logical Minimum (0),
+    0x25, 0x01,          //   Logical Maximum (1),
+    0x81, 0x02,          //   Input (Data, Variable, Absolute), ;Modifier byte
+    0x95, 0x01,          //   Report Count (1),
+    0x75, 0x08,          //   Report Size (8),
+    0x81, 0x03,          //   Input (Constant),                 ;Reserved byte
+    0x95, 0x05,          //   Report Count (5),
+    0x75, 0x01,          //   Report Size (1),
+    0x05, 0x08,          //   Usage Page (LEDs),
+    0x19, 0x01,          //   Usage Minimum (1),
+    0x29, 0x05,          //   Usage Maximum (5),
+    0x91, 0x02,          //   Output (Data, Variable, Absolute), ;LED report
+    0x95, 0x01,          //   Report Count (1),
+    0x75, 0x03,          //   Report Size (3),
+    0x91, 0x03,          //   Output (Constant),                 ;LED report padding
+    0x95, 0x06,          //   Report Count (6),
+    0x75, 0x08,          //   Report Size (8),
+    0x15, 0x00,          //   Logical Minimum (0),
+    0x25, 0xFF,          //   Logical Maximum(255),
+    0x05, 0x07,          //   Usage Page (Key Codes),
+    0x19, 0x00,          //   Usage Minimum (0),
+    0x29, 0xFF,          //   Usage Maximum (255),
+    0x81, 0x00,          //   Input (Data, Array),
+    0xc0                 // End Collection
+};
diff --git a/ps2_vusb/keymap.c b/ps2_vusb/keymap.c
new file mode 100644
index 000000000..47db18bfa
--- /dev/null
+++ b/ps2_vusb/keymap.c
@@ -0,0 +1,189 @@
+/* 
+ * Keymap for PS/2 keyboard
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/pgmspace.h>
+#include "usb_keyboard.h"
+#include "usb_keycodes.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "keymap_skel.h"
+
+
+#define KEYCODE(layer, row, col) (pgm_read_byte(&keymaps[(layer)][(row)][(col)]))
+
+// Convert physical keyboard layout to matrix array.
+// This is a macro to define keymap easily in keyboard layout form.
+#define KEYMAP( \
+    K76,  K05,K06,K04,K0C, K03,K0B,K83,K0A, K01,K09,K78,K07, KFC,K7E,KFE,      KB7,KBF,KDE, \
+    K0E,K16,K1E,K26,K25,K2E,K36,K3D,K3E,K46,K45,K4E,K55,K66, KF0,KEC,KFD,  K77,KCA,K7C,K7B, \
+    K0D,K15,K1D,K24,K2D,K2C,K35,K3C,K43,K44,K4D,K54,K5B,K5D, KF1,KE9,KFA,  K6C,K75,K7D,     \
+    K58,K1C,K1B,K23,K2B,K34,K33,K3B,K42,K4B,K4C,K52,    K5A,               K6B,K73,K74,K79, \
+    K12,K1A,K22,K21,K2A,K32,K31,K3A,K41,K49,K4A,        K59,     KF5,      K69,K72,K7A,     \
+    K14,K9F,K11,        K29,                K91,KA7,KAF,K94, KEB,KF2,KF4,  K70,    K71,KDA  \
+) { \
+    { KB_NO,    KB_##K01, KB_NO,    KB_##K03, KB_##K04, KB_##K05, KB_##K06, KB_##K07 }, \
+    { KB_NO,    KB_##K09, KB_##K0A, KB_##K0B, KB_##K0C, KB_##K0D, KB_##K0E, KB_NO    }, \
+    { KB_NO,    KB_##K11, KB_##K12, KB_NO,    KB_##K14, KB_##K15, KB_##K16, KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_##K1A, KB_##K1B, KB_##K1C, KB_##K1D, KB_##K1E, KB_NO    }, \
+    { KB_NO,    KB_##K21, KB_##K22, KB_##K23, KB_##K24, KB_##K25, KB_##K26, KB_NO    }, \
+    { KB_NO,    KB_##K29, KB_##K2A, KB_##K2B, KB_##K2C, KB_##K2D, KB_##K2E, KB_NO    }, \
+    { KB_NO,    KB_##K31, KB_##K32, KB_##K33, KB_##K34, KB_##K35, KB_##K36, KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_##K3A, KB_##K3B, KB_##K3C, KB_##K3D, KB_##K3E, KB_NO    }, \
+    { KB_NO,    KB_##K41, KB_##K42, KB_##K43, KB_##K44, KB_##K45, KB_##K46, KB_NO    }, \
+    { KB_NO,    KB_##K49, KB_##K4A, KB_##K4B, KB_##K4C, KB_##K4D, KB_##K4E, KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_##K52, KB_NO,    KB_##K54, KB_##K55, KB_NO,    KB_NO    }, \
+    { KB_##K58, KB_##K59, KB_##K5A, KB_##K5B, KB_NO,    KB_##K5D, KB_NO,    KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_##K66, KB_NO    }, \
+    { KB_NO,    KB_##K69, KB_NO,    KB_##K6B, KB_##K6C, KB_NO,    KB_NO,    KB_NO    }, \
+    { KB_##K70, KB_##K71, KB_##K72, KB_##K73, KB_##K74, KB_##K75, KB_##K76, KB_##K77 }, \
+    { KB_##K78, KB_##K79, KB_##K7A, KB_##K7B, KB_##K7C, KB_##K7D, KB_##K7E, KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_##K83, KB_NO,    KB_NO,    KB_NO,    KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO    }, \
+    { KB_NO,    KB_##K91, KB_NO,    KB_NO,    KB_##K94, KB_NO,    KB_NO,    KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_##K9F }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_##KA7 }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_##KAF }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_##KB7 }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_##KBF }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_##KCA, KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_##KDA, KB_NO,    KB_NO,    KB_NO,    KB_##KDE, KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO,    KB_NO    }, \
+    { KB_NO,    KB_##KE9, KB_NO,    KB_##KEB, KB_##KEC, KB_NO,    KB_NO,    KB_NO    }, \
+    { KB_##KF0, KB_##KF1, KB_##KF2, KB_NO,    KB_##KF4, KB_##KF5, KB_NO,    KB_NO    }, \
+    { KB_NO,    KB_NO,    KB_##KFA, KB_NO,    KB_##KFC, KB_##KFD, KB_##KFE, KB_NO    }, \
+}
+
+
+// Assign Fn key(0-7) to a layer to which switch with the Fn key pressed.
+static const uint8_t PROGMEM fn_layer[] = {
+    5,              // Fn0
+    6,              // Fn1
+    5,              // Fn2
+    0,              // Fn3
+    0,              // Fn4
+    0,              // Fn5
+    0,              // Fn6
+    0               // Fn7
+};
+
+// Assign Fn key(0-7) to a keycode sent when release Fn key without use of the layer.
+// See layer.c for details.
+static const uint8_t PROGMEM fn_keycode[] = {
+    KB_SCLN,        // Fn0
+    KB_SLSH,        // Fn1
+    KB_A,           // Fn2
+    KB_NO,          // Fn3
+    KB_NO,          // Fn4
+    KB_NO,          // Fn5
+    KB_NO,          // Fn6
+    KB_NO           // Fn7
+};
+
+static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* keymap
+     * ,---.   ,---------------. ,---------------. ,---------------. ,-----------.     ,-----------.
+     * |Esc|   |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Pau|     |Pwr|Slp|Wak|
+     * `---'   `---------------' `---------------' `---------------' `-----------'     `-----------'
+     * ,-----------------------------------------------------------. ,-----------. ,---------------.
+     * |  `|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backspa| |Ins|Hom|PgU| |NmL|  /|  *|  -|
+     * |-----------------------------------------------------------| |-----------| |---------------|
+     * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|    \| |Del|End|PgD| |  7|  8|  9|   |
+     * |-----------------------------------------------------------| `-----------' |-----------|  +|
+     * |CapsLo|  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return  |               |  4|  5|  6|   |
+     * |-----------------------------------------------------------|     ,---.     |---------------|
+     * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  ,|  /|Shift     |     |Up |     |  1|  2|  3|   |
+     * |-----------------------------------------------------------| ,-----------. |-----------|Ent|
+     * |Ctrl |Gui |Alt |         Space         |Alt |Gui |Menu|Ctrl| |Lef|Dow|Rig| |      0|  .|   |
+     * `-----------------------------------------------------------' `-----------' `---------------'
+     */
+    /* 0: default */
+    KEYMAP(
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12,           PSCR,SLCK,BRK,          PWR, F13, F14,
+    GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC,     INS, HOME,PGUP,    NLCK,PSLS,PAST,PMNS,
+    TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSLS,     DEL, END, PGDN,    P7,  P8,  P9,
+    CAPS,FN2, S,   D,   F,   G,   H,   J,   K,   L,   FN0, QUOT,     ENT,                         P4,  P5,  P6,  PPLS,
+    LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, FN1,           RSFT,          UP,           P1,  P2,  P3,
+    LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, RCTL,     LEFT,DOWN,RGHT,    P0,       PDOT,PENT
+    ),
+    /* 1: plain Qwerty without layer switching */
+    KEYMAP(
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12,           PSCR,SLCK,BRK,          PWR, F13, F14,
+    GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC,     INS, HOME,PGUP,    NLCK,PSLS,PAST,PMNS,
+    TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSLS,     DEL, END, PGDN,    P7,  P8,  P9,
+    CAPS,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,     ENT,                         P4,  P5,  P6,  PPLS,
+    LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,          RSFT,          UP,           P1,  P2,  P3,
+    LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, RCTL,     LEFT,DOWN,RGHT,    P0,       PDOT,PENT
+    ),
+    /* 2: Colemak http://colemak.com */
+    KEYMAP(
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12,           PSCR,SLCK,BRK,          PWR, F13, F14,
+    GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC,     INS, HOME,PGUP,    NLCK,PSLS,PAST,PMNS,
+    TAB, Q,   W,   F,   P,   G,   J,   L,   U,   Y,   SCLN,LBRC,RBRC,BSLS,     DEL, END, PGDN,    P7,  P8,  P9,
+    BSPC,A,   R,   S,   T,   D,   H,   N,   E,   I,   O,   QUOT,     ENT,                         P4,  P5,  P6,  PPLS,
+    LSFT,Z,   X,   C,   V,   B,   K,   M,   COMM,DOT, SLSH,          RSFT,          UP,           P1,  P2,  P3,
+    LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, RCTL,     LEFT,DOWN,RGHT,    P0,       PDOT,PENT
+    ),
+    /* 3: Dvorak http://en.wikipedia.org/wiki/Dvorak_Simplified_Keyboard */
+    KEYMAP(
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12,           PSCR,SLCK,BRK,          PWR, F13, F14,
+    GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   LBRC,RBRC,BSPC,     INS, HOME,PGUP,    NLCK,PSLS,PAST,PMNS,
+    TAB, QUOT,COMM,DOT, P,   Y,   F,   G,   C,   R,   L,   SLSH,EQL, BSLS,     DEL, END, PGDN,    P7,  P8,  P9,
+    CAPS,A,   O,   E,   U,   I,   D,   H,   T,   N,   S,   MINS,     ENT,                         P4,  P5,  P6,  PPLS,
+    LSFT,SCLN,Q,   J,   K,   X,   B,   M,   W,   V,   Z,             RSFT,          UP,           P1,  P2,  P3,
+    LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, RCTL,     LEFT,DOWN,RGHT,    P0,       PDOT,PENT
+    ),
+    /* 4: Workman http://viralintrospection.wordpress.com/2010/09/06/a-different-philosophy-in-designing-keyboard-layouts/ */
+    KEYMAP(
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12,           PSCR,SLCK,BRK,          PWR, F13, F14,
+    GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC,     INS, HOME,PGUP,    NLCK,PSLS,PAST,PMNS,
+    TAB, Q,   D,   R,   W,   B,   J,   F,   U,   P,   SCLN,LBRC,RBRC,BSLS,     DEL, END, PGDN,    P7,  P8,  P9,
+    BSPC,A,   S,   H,   T,   G,   Y,   N,   E,   O,   I,   QUOT,     ENT,                         P4,  P5,  P6,  PPLS,
+    LSFT,Z,   X,   M,   C,   V,   K,   L,   COMM,DOT, SLSH,          RSFT,          UP,           P1,  P2,  P3,
+    LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, RCTL,     LEFT,DOWN,RGHT,    P0,       PDOT,PENT
+    ),
+    /* 5: Mouse keys */
+    KEYMAP(
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12,           PSCR,SLCK,BRK,          PWR, F13, F14,
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F8,  F10, F11, F12, BSPC,     INS, HOME,PGUP,    NLCK,PSLS,PAST,PMNS,
+    TAB, WH_L,WH_D,MS_U,WH_U,WH_R,WH_L,WH_D,WH_U,WH_R,NO,  NO,  NO,  BSLS,     DEL, END, PGDN,    P7,  P8,  P9,
+    CAPS,FN2, MS_L,MS_D,MS_R,NO,  MS_L,MS_D,MS_U,MS_R,FN0, NO,       ENT,                         P4,  P5,  P6,  PPLS,
+    LSFT,VOLD,VOLU,MUTE,BTN2,BTN3,BTN2,BTN1,VOLD,VOLU,MUTE,          RSFT,          UP,           P1,  P2,  P3,
+    LCTL,LGUI,LALT,          BTN1,                    RALT,RGUI,APP, RCTL,     LEFT,DOWN,RGHT,    P0,       PDOT,PENT
+    ),
+    /* 6: Cursor keys */
+    KEYMAP(
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12,           PSCR,SLCK,BRK,          PWR, F13, F14,
+    ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F8,  F10, F11, F12, BSPC,     INS, HOME,PGUP,    NLCK,PSLS,PAST,PMNS,
+    TAB, NO,  NO,  NO,  NO,  NO,  HOME,PGDN,PGUP,END, NO,  NO,  NO,  BSLS,     DEL, END, PGDN,    P7,  P8,  P9,
+    CAPS,NO,  NO,  NO,  NO,  NO,  LEFT,DOWN,UP,  RGHT,NO,  NO,       ENT,                         P4,  P5,  P6,  PPLS,
+    LSFT,VOLD,VOLU,MUTE,NO,  NO,  HOME,PGDN,PGUP,END, FN1,           RSFT,          UP,           P1,  P2,  P3,
+    LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, RCTL,     LEFT,DOWN,RGHT,    P0,       PDOT,PENT
+    ),
+};
+
+
+uint8_t keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t col)
+{
+    return KEYCODE(layer, row, col);
+}
+
+uint8_t keymap_fn_layer(uint8_t fn_bits)
+{
+    return pgm_read_byte(&fn_layer[biton(fn_bits)]);
+}
+
+uint8_t keymap_fn_keycode(uint8_t fn_bits)
+{
+    return pgm_read_byte(&fn_keycode[(biton(fn_bits))]);
+}
+
+// define a condition to enter special function mode
+bool keymap_is_special_mode(uint8_t fn_bits)
+{
+    return usb_keyboard_mods == (BIT_LSHIFT | BIT_RSHIFT) || usb_keyboard_mods == (BIT_LCTRL | BIT_RSHIFT);
+}
diff --git a/ps2_vusb/layer.c b/ps2_vusb/layer.c
new file mode 100644
index 000000000..e4132bade
--- /dev/null
+++ b/ps2_vusb/layer.c
@@ -0,0 +1,183 @@
+#include "keymap_skel.h"
+#include "keyboard.h"
+#include "debug.h"
+#include "timer.h"
+#include "layer.h"
+
+/*
+ * Parameters:
+ *     ENTER_DELAY         |=======|
+ *     SEND_FN_TERM        |================|
+ *
+ * Fn key processing cases:
+ * 1. release Fn after SEND_FN_TERM.
+ *     Layer sw         ___________|~~~~~~~~~~~|___
+ *     Fn press         ___|~~~~~~~~~~~~~~~~~~~|___
+ *     Fn send          ___________________________
+ *
+ * 2. release Fn during SEND_FN_TERM.(not layer used)
+ *     Layer sw         ___________|~~~~~~|________
+ *     Fn press         ___|~~~~~~~~~~~~~~|________
+ *     Fn key send      __________________|~|______
+ *     other key press  ___________________________
+ *     other key send   ___________________________
+ *
+ * 3. release Fn during SEND_FN_TERM.(layer used)
+ *     Layer sw         ___________|~~~~~~|________
+ *     Fn press         ___|~~~~~~~~~~~~~~|________
+ *     Fn key send      ___________________________
+ *     Fn send          ___________________________
+ *     other key press  _____________|~~|__________
+ *     other key send   _____________|~~|__________
+ *
+ * 4. press other key during ENTER_DELAY.
+ *     Layer sw         ___________________________
+ *     Fn key press     ___|~~~~~~~~~|_____________
+ *     Fn key send      ______|~~~~~~|_____________
+ *     other key press  ______|~~~|________________
+ *     other key send   _______|~~|________________
+ *
+ * 5. press Fn while press other key.
+ *     Layer sw         ___________________________
+ *     Fn key press     ___|~~~~~~~~~|_____________
+ *     Fn key send      ___|~~~~~~~~~|_____________
+ *     other key press  ~~~~~~~|___________________
+ *     other key send   ~~~~~~~|___________________
+ *
+ * 6. press Fn twice quickly and keep holding down.(repeat)
+ *     Layer sw         ___________________________
+ *     Fn key press     ___|~|____|~~~~~~~~~~~~~~~~
+ *     Fn key send      _____|~|__|~~~~~~~~~~~~~~~~
+ */
+
+// LAYER_ENTER_DELAY: prevent from moving new layer
+#define LAYER_ENTER_DELAY 10
+
+// LAYER_SEND_FN_TERM: send keycode if release key in this term
+#define LAYER_SEND_FN_TERM 40
+
+
+uint8_t default_layer = 0;
+uint8_t current_layer = 0;
+
+static bool layer_used = false;
+static uint8_t new_layer(uint8_t fn_bits);
+
+
+uint8_t layer_get_keycode(uint8_t row, uint8_t col)
+{
+    uint8_t code = keymap_get_keycode(current_layer, row, col);
+    // normal key or mouse key
+    if ((IS_KEY(code) || IS_MOUSEKEY(code))) {
+        layer_used = true;
+    }
+    return code;
+}
+
+// bit substract b from a
+#define BIT_SUBT(a, b) (a&(a^b))
+void layer_switching(uint8_t fn_bits)
+{
+    // layer switching
+    static uint8_t last_fn = 0;
+    static uint8_t last_mods = 0;
+    static uint16_t last_timer = 0; 
+    static uint8_t sent_fn = 0;
+
+    if (fn_bits == last_fn) { // Fn state is not changed
+        if (fn_bits == 0) {
+            // do nothing
+        } else {
+            if (timer_elapsed(last_timer) > LAYER_ENTER_DELAY) {
+                uint8_t _layer_to_switch = new_layer(BIT_SUBT(fn_bits, sent_fn));
+                if (current_layer != _layer_to_switch) { // not switch layer yet
+                    debug("Fn case: 1,2,3(LAYER_ENTER_DELAY passed)\n");
+                    debug("Switch Layer: "); debug_hex(current_layer);
+                    current_layer = _layer_to_switch;
+                    layer_used = false;
+                    debug(" -> "); debug_hex(current_layer); debug("\n");
+                }
+            } else {
+                if (report_has_key()) { // other keys is pressed
+                    uint8_t _fn_to_send = BIT_SUBT(fn_bits, sent_fn);
+                    if (_fn_to_send) {
+                        debug("Fn case: 4(send Fn before other key pressed)\n");
+                        // send only Fn key first
+                        report_swap();
+                        report_clear();
+                        report_add_code(keymap_fn_keycode(_fn_to_send));   // TODO: do all Fn keys
+                        report_add_mod(last_mods);
+                        report_send();
+                        report_swap();
+                        sent_fn |= _fn_to_send;
+                    }
+                }
+            }
+            // add Fn keys to send
+            //report_add_code(keymap_fn_keycode(fn_bits&sent_fn));  // TODO: do all Fn keys
+        }
+    } else { // Fn state is changed(edge)
+        uint8_t fn_changed = 0;
+
+        debug("fn_bits: "); debug_bin(fn_bits); debug("\n");
+        debug("sent_fn: "); debug_bin(sent_fn); debug("\n");
+        debug("last_fn: "); debug_bin(last_fn); debug("\n");
+        debug("last_mods: "); debug_hex(last_mods); debug("\n");
+        debug("last_timer: "); debug_hex16(last_timer); debug("\n");
+
+        // pressed Fn
+        if ((fn_changed = BIT_SUBT(fn_bits, last_fn))) {
+        debug("fn_changed: "); debug_bin(fn_changed); debug("\n");
+            if (report_has_key()) {
+                debug("Fn case: 5(pressed Fn with other key)\n");
+                sent_fn |= fn_changed;
+            } else if (fn_changed & sent_fn) { // pressed same Fn in a row
+                if (timer_elapsed(last_timer) > LAYER_ENTER_DELAY) {
+                    debug("Fn case: 6(repate2)\n");
+                    // time passed: not repeate
+                    sent_fn &= ~fn_changed;
+                } else {
+                    debug("Fn case: 6(repate)\n");
+                }
+            }
+        }
+        // released Fn
+        if ((fn_changed = BIT_SUBT(last_fn, fn_bits))) {
+        debug("fn_changed: "); debug_bin(fn_changed); debug("\n");
+            if (timer_elapsed(last_timer) < LAYER_SEND_FN_TERM) {
+                //if (!layer_used && BIT_SUBT(fn_changed, sent_fn)) {  // layer not used && Fn not sent
+                if (BIT_SUBT(fn_changed, sent_fn)) {  // layer not used && Fn not sent
+                    debug("Fn case: 2(send Fn one shot: released Fn during LAYER_SEND_FN_TERM)\n");
+                    // send only Fn key first
+                    report_swap();
+                    report_clear();
+                    report_add_code(keymap_fn_keycode(fn_changed));   // TODO: do all Fn keys
+                    report_add_mod(last_mods);
+                    report_send();
+                    report_swap();
+                    sent_fn |= fn_changed;
+                }
+            }
+            debug("Switch Layer(released Fn): "); debug_hex(current_layer);
+            current_layer = new_layer(BIT_SUBT(fn_bits, sent_fn));
+            layer_used = false;
+            debug(" -> "); debug_hex(current_layer); debug("\n");
+        }
+
+        last_fn = fn_bits;
+        last_mods = report_get()->mods;
+        last_timer = timer_read();
+    }
+    // send Fn keys
+    for (uint8_t i = 0; i < 8; i++) {
+        if ((sent_fn & fn_bits) & (1<<i)) {
+            report_add_code(keymap_fn_keycode(1<<i));
+        }
+    }
+}
+
+inline
+static uint8_t new_layer(uint8_t fn_bits)
+{
+    return (fn_bits ? keymap_fn_layer(fn_bits) : default_layer);
+}
diff --git a/ps2_vusb/main.c b/ps2_vusb/main.c
new file mode 100644
index 000000000..359e28254
--- /dev/null
+++ b/ps2_vusb/main.c
@@ -0,0 +1,126 @@
+/* Name: main.c
+ * Project: hid-mouse, a very simple HID example
+ * Author: Christian Starkjohann
+ * Creation Date: 2008-04-07
+ * Tabsize: 4
+ * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
+ * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
+ * This Revision: $Id: main.c 790 2010-05-30 21:00:26Z cs $
+ */
+
+/*
+This example should run on most AVRs with only little changes. No special
+hardware resources except INT0 are used. You may have to change usbconfig.h for
+different I/O pins for USB. Please note that USB D+ must be the INT0 pin, or
+at least be connected to INT0 as well.
+
+We use VID/PID 0x046D/0xC00E which is taken from a Logitech mouse. Don't
+publish any hardware using these IDs! This is for demonstration only!
+*/
+
+#include <stdint.h>
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>  /* for sei() */
+#include <util/delay.h>     /* for _delay_ms() */
+
+#include <avr/pgmspace.h>   /* required by usbdrv.h */
+#include "usbdrv.h"
+#include "usart_print.h"        /* This is also an example for using debug macros */
+#include "ps2.h"
+#include "usb_keycodes.h"
+#include "matrix_skel.h"
+#include "keymap_skel.h"
+#include "layer.h"
+#include "print.h"
+#include "debug.h"
+#include "sendchar.h"
+#include "keyboard.h"
+#include "timer.h"
+
+/* ------------------------------------------------------------------------- */
+/* ----------------------------- USB interface ----------------------------- */
+/* ------------------------------------------------------------------------- */
+
+
+
+
+
+
+int main(void)
+{
+uchar   i;
+
+print_enable = true;
+debug_enable = true;
+timer_init();
+matrix_init();
+
+    wdt_enable(WDTO_1S);
+    /* Even if you don't use the watchdog, turn it off here. On newer devices,
+     * the status of the watchdog (on/off, period) is PRESERVED OVER RESET!
+     */
+    /* RESET status: all port bits are inputs without pull-up.
+     * That's the way we need D+ and D-. Therefore we don't need any
+     * additional hardware initialization.
+     */
+    odDebugInit();
+    DBG1(0x00, 0, 0);       /* debug output: main starts */
+    usbInit();
+    usbDeviceDisconnect();  /* enforce re-enumeration, do this while interrupts are disabled! */
+    i = 0;
+    while(--i){             /* fake USB disconnect for > 250 ms */
+        wdt_reset();
+        _delay_ms(1);
+    }
+    usbDeviceConnect();
+    sei();
+
+    uint8_t fn_bits = 0;
+    while (1) {                /* main event loop */
+        DBG1(0x02, 0, 0);   /* debug output: main loop iterates */
+        wdt_reset();
+        usbPoll();
+
+/*
+static uint8_t code = 0;
+code = ps2_host_recv();
+if (code) {
+    odDebug(0x05, &code, 1);
+}
+*/
+        matrix_scan();
+        if (matrix_is_modified()) {
+            //matrix_print();   // too heavy on USART
+            fn_bits = 0;
+            report_swap();
+            report_clear();
+            for (int row = 0; row < matrix_rows(); row++) {
+                for (int col = 0; col < matrix_cols(); col++) {
+                    if (!matrix_is_on(row, col)) continue;
+
+                    uint8_t code = layer_get_keycode(row, col);
+                    if (code == KB_NO) {
+                        // do nothing
+                    }
+                    else if (IS_MOD(code)) {
+                        report_add_mod(MOD_BIT(code));
+                    }
+                    else if (IS_KEY(code)) {
+                        report_add_key(code);
+                    }
+                    else if (IS_FN(code)) {
+                        fn_bits |= FN_BIT(code);
+                    }
+                    else {
+                        debug("ignore keycode: "); debug_hex(code); debug("\n");
+                    }
+                }
+            }
+        }
+        layer_switching(fn_bits);
+        if (matrix_is_modified()) {
+            report_send();
+        }
+    }
+}
diff --git a/ps2_vusb/matrix.c b/ps2_vusb/matrix.c
new file mode 100644
index 000000000..c46473392
--- /dev/null
+++ b/ps2_vusb/matrix.c
@@ -0,0 +1,492 @@
+/*
+ * scan matrix
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "print.h"
+#include "util.h"
+#include "debug.h"
+#include "ps2.h"
+#include "usb_keyboard.h"
+#include "matrix_skel.h"
+
+
+#if (MATRIX_COLS > 16)
+#   error "MATRIX_COLS must not exceed 16"
+#endif
+#if (MATRIX_ROWS > 255)
+#   error "MATRIX_ROWS must not exceed 255"
+#endif
+
+
+/*
+ * Matrix usage:
+ * "PS/2 Scan Codes Set 2" is assigned to 256(32x8)cells matrix.
+ * Hmm, It is very sparse and not efficient :(
+ *
+ *      8bit
+ *    ---------
+ *  0|         |
+ *  :|   XX    | 00-7F for normal codes(without E0-prefix)
+ *  f|_________|
+ * 10|         |
+ *  :|  E0 XX  | 80-FF for E0-prefix codes(use (XX|0x80) as code)
+ * 1f|         |
+ *    ---------
+ * exceptions:
+ * 83:    F8[0x83](normal codes but > 0x7F)
+ * FC:    PrintScreen[E0 7C or 84]
+ * FE:    Puause
+ */
+#define F8             (0x83)
+#define PRINT_SCREEN   (0xFC)
+#define PAUSE          (0xFE)
+#define ROW(code)      (code>>3)
+#define COL(code)      (code&0x07)
+
+static bool is_modified = false;
+
+// matrix state buffer(1:on, 0:off)
+#if (MATRIX_COLS <= 8)
+static uint8_t matrix[MATRIX_ROWS];
+#else
+static uint16_t matrix[MATRIX_ROWS];
+#endif
+
+#ifdef MATRIX_HAS_GHOST
+static bool matrix_has_ghost_in_row(uint8_t row);
+#endif
+static void matrix_make(uint8_t code);
+static void matrix_break(uint8_t code);
+static void ps2_reset(void);
+static void ps2_set_leds(uint8_t leds);
+
+
+inline
+uint8_t matrix_rows(void)
+{
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+    return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+    ps2_host_init();
+    _delay_ms(1000);
+
+    // flush LEDs
+/*
+    ps2_set_leds(1<<PS2_LED_NUM_LOCK);
+    _delay_ms(100);
+    ps2_set_leds(1<<PS2_LED_NUM_LOCK|1<<PS2_LED_CAPS_LOCK);
+    _delay_ms(100);
+    ps2_set_leds(1<<PS2_LED_NUM_LOCK|1<<PS2_LED_CAPS_LOCK|1<<PS2_LED_SCROLL_LOCK);
+    _delay_ms(300);
+    ps2_set_leds(0x00);
+*/
+    
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
+
+    return;
+}
+
+/*
+ * PS/2 Scan Code Set 2: Exceptional Handling
+ *
+ * There are several keys to be handled exceptionally.
+ * The scan code for these keys are varied or prefix/postfix'd
+ * depending on modifier key state.
+ *
+ * References:
+ *     http://www.microsoft.com/whdc/archive/scancode.mspx
+ *     http://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/scancode.doc
+ *
+ *
+ * Insert, Delete, Home, End, PageUp, PageDown, Up, Down, Right, Left:
+ *     Num Lock: off
+ *     modifiers | make                      | break
+ *     ----------+---------------------------+----------------------
+ *     Ohter     |                    <make> | <break>
+ *     LShift    | E0 F0 12           <make> | <break>  E0 12
+ *     RShift    | E0 F0 59           <make> | <break>  E0 59
+ *     L+RShift  | E0 F0 12  E0 F0 59 <make> | <break>  E0 59 E0 12
+ *
+ *     Num Lock: on
+ *     modifiers | make                      | break
+ *     ----------+---------------------------+----------------------
+ *     Other     | E0 12              <make> | <break>  E0 F0 12
+ *     Shift'd   |                    <make> | <break>
+ *
+ *     Handling: ignore these prefix/postfix codes
+ *
+ *
+ * Keypad-/:
+ *     modifiers | make                      | break
+ *     ----------+---------------------------+----------------------
+ *     Ohter     |                    <make> | <break>
+ *     LShift    | E0 F0 12           <make> | <break>  E0 12
+ *     RShift    | E0 F0 59           <make> | <break>  E0 59
+ *     L+RShift  | E0 F0 12  E0 F0 59 <make> | <break>  E0 59 E0 12
+ *
+ *     Handling: ignore these prefix/postfix codes
+ *
+ *
+ * PrintScreen:
+ *     With hoding down modifiers, the scan code is sent as following:
+ *
+ *     modifiers | make         | break
+ *     ----------+--------------+-----------------------------------
+ *     Other     | E0 12  E0 7C | E0 F0 7C  E0 F0 12
+ *     Shift'd   |        E0 7C | E0 F0 7C
+ *     Control'd |        E0 7C | E0 F0 7C
+ *     Alt'd     |           84 | F0 84
+ *
+ *     Handling: ignore prefix/postfix codes and treat both scan code
+ *               E0 7C and 84 as PrintScreen.
+ *
+ * Pause:
+ *     With hoding down modifiers, the scan code is sent as following:
+ *
+ *     modifiers | make(no break code)
+ *     ----------+--------------------------------------------------
+ *     no mods   | E1 14 77 E1 F0 14 F0 77
+ *     Control'd | E0 7E E0 F0 7E
+ *
+ *     Handling: treat these two code sequence as Pause
+ *
+ */
+uint8_t matrix_scan(void)
+{
+
+    static enum {
+        INIT,
+        F0,
+        E0,
+        E0_F0,
+        // states for Pause/Break
+        E1,
+        E1_14,
+        E1_14_77,
+        E1_14_77_E1,
+        E1_14_77_E1_F0,
+        E1_14_77_E1_F0_14,
+        E1_14_77_E1_F0_14_F0,
+    } state = INIT;
+
+
+    is_modified = false;
+
+    // Pause/Break off(PS/2 has no break for this key)
+    if (matrix_is_on(ROW(PAUSE), COL(PAUSE))) {
+        matrix_break(PAUSE);
+    }
+
+    uint8_t code;
+    while ((code = ps2_host_recv())) {
+//debug_hex(code); debug(" ");
+        switch (state) {
+            case INIT:
+                switch (code) {
+                    case 0xE0:  // 2byte make
+                        state = E0;
+                        break;
+                    case 0xF0:  // break code
+                        state = F0;
+                        break;
+                    case 0xE1:  // Pause/Break
+                        state = E1;
+                        break;
+                    case 0x83:  // F8
+                        matrix_make(F8);
+                        state = INIT;
+                        break;
+                    case 0x84:  // PrintScreen
+                        matrix_make(PRINT_SCREEN);
+                        state = INIT;
+                        break;
+                    default:    // normal key make
+                        if (code < 0x80) {
+                            matrix_make(code);
+                        } else {
+                            debug("unexpected scan code at INIT: "); debug_hex(code); debug("\n");
+                        }
+                        state = INIT;
+                }
+                break;
+            case E0:
+                switch (code) {
+                    case 0x12:  // postfix/postfix code for exceptional keys
+                    case 0x59:  // postfix/postfix code for exceptional keys
+                        // ignore
+                        state = INIT;
+                        break;
+                    case 0x7E:  // former part of Control-Pause[E0 7E  E0 F0 7E]
+                        matrix_make(PAUSE);
+                        state = INIT;
+                        break;
+                    case 0xF0:  // E0 break
+                        state = E0_F0;
+                        break;
+                    default:    // E0 make
+                        if (code < 0x80) {
+                            matrix_make(code|0x80);
+                        } else {
+                            debug("unexpected scan code at E0: "); debug_hex(code); debug("\n");
+                        }
+                        state = INIT;
+                }
+                break;
+            case F0:
+                switch (code) {
+                    case 0x83:
+                        matrix_break(F8);
+                        state = INIT;
+                        break;
+                    case 0x84:
+                        matrix_break(PRINT_SCREEN);
+                        state = INIT;
+                        break;
+                    default:
+                    if (code < 0x80) {
+                        matrix_break(code);
+                    } else {
+                        debug("unexpected scan code at F0: "); debug_hex(code); debug("\n");
+                    }
+                    state = INIT;
+                }
+                break;
+            case E0_F0: // E0 break
+                switch (code) {
+                    case 0x12:  // postfix/postfix code for exceptional keys
+                    case 0x59:  // postfix/postfix code for exceptional keys
+                    case 0x7E:  // latter part of Control-Pause[E0 7E  E0 F0 7E]
+                        // ignore
+                        state = INIT;
+                        break;
+                    default:
+                        if (code < 0x80) {
+                            matrix_break(code|0x80);
+                        } else {
+                            debug("unexpected scan code at E0_F0: "); debug_hex(code); debug("\n");
+                        }
+                        state = INIT;
+                }
+                break;
+            /* Pause */
+            case E1:
+                switch (code) {
+                    case 0x14:
+                        state = E1_14;
+                        break;
+                    default:
+                        state = INIT;
+                }
+                break;
+            case E1_14:
+                switch (code) {
+                    case 0x77:
+                        state = E1_14_77;
+                        break;
+                    default:
+                        state = INIT;
+                }
+                break;
+            case E1_14_77:
+                switch (code) {
+                    case 0xE1:
+                        state = E1_14_77_E1;
+                        break;
+                    default:
+                        state = INIT;
+                }
+                break;
+            case E1_14_77_E1:
+                switch (code) {
+                    case 0xF0:
+                        state = E1_14_77_E1_F0;
+                        break;
+                    default:
+                        state = INIT;
+                }
+                break;
+            case E1_14_77_E1_F0:
+                switch (code) {
+                    case 0x14:
+                        state = E1_14_77_E1_F0_14;
+                        break;
+                    default:
+                        state = INIT;
+                }
+                break;
+            case E1_14_77_E1_F0_14:
+                switch (code) {
+                    case 0xF0:
+                        state = E1_14_77_E1_F0_14_F0;
+                        break;
+                    default:
+                        state = INIT;
+                }
+                break;
+            case E1_14_77_E1_F0_14_F0:
+                switch (code) {
+                    case 0x77:
+                        matrix_make(PAUSE);
+                        state = INIT;
+                        break;
+                    default:
+                        state = INIT;
+                }
+                break;
+            default:
+                state = INIT;
+        }
+    }
+
+    // handle LED indicators
+/*
+    static uint8_t prev_leds = 0;
+    if (prev_leds != usb_keyboard_leds) {
+        uint8_t leds = 0;
+        if (usb_keyboard_leds&(1<<USB_LED_SCROLL_LOCK))
+            leds |= (1<<PS2_LED_SCROLL_LOCK);
+        if (usb_keyboard_leds&(1<<USB_LED_NUM_LOCK))
+            leds |= (1<<PS2_LED_NUM_LOCK);
+        if (usb_keyboard_leds&(1<<USB_LED_CAPS_LOCK))
+            leds |= (1<<PS2_LED_CAPS_LOCK);
+
+        ps2_set_leds(leds);
+        prev_leds = usb_keyboard_leds;
+    }
+*/
+
+    return 1;
+}
+
+bool matrix_is_modified(void)
+{
+    return is_modified;
+}
+
+inline
+bool matrix_has_ghost(void)
+{
+#ifdef MATRIX_HAS_GHOST
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        if (matrix_has_ghost_in_row(i))
+            return true;
+    }
+#endif
+    return false;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & (1<<col));
+}
+
+inline
+#if (MATRIX_COLS <= 8)
+uint8_t matrix_get_row(uint8_t row)
+#else
+uint16_t matrix_get_row(uint8_t row)
+#endif
+{
+    return matrix[row];
+}
+
+void matrix_print(void)
+{
+#if (MATRIX_COLS <= 8)
+    print("\nr/c 01234567\n");
+#else
+    print("\nr/c 0123456789ABCDEF\n");
+#endif
+    for (uint8_t row = 0; row < matrix_rows(); row++) {
+        phex(row); print(": ");
+#if (MATRIX_COLS <= 8)
+        pbin_reverse(matrix_get_row(row));
+#else
+        pbin_reverse16(matrix_get_row(row));
+#endif
+#ifdef MATRIX_HAS_GHOST
+        if (matrix_has_ghost_in_row(row)) {
+            print(" <ghost");
+        }
+#endif
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+#if (MATRIX_COLS <= 8)
+        count += bitpop(matrix[i]);
+#else
+        count += bitpop16(matrix[i]);
+#endif
+    }
+    return count;
+}
+
+#ifdef MATRIX_HAS_GHOST
+inline
+static bool matrix_has_ghost_in_row(uint8_t row)
+{
+    // no ghost exists in case less than 2 keys on
+    if (((matrix[row] - 1) & matrix[row]) == 0)
+        return false;
+
+    // ghost exists in case same state as other row
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        if (i != row && (matrix[i] & matrix[row]) == matrix[row])
+            return true;
+    }
+    return false;
+}
+#endif
+
+
+inline
+static void matrix_make(uint8_t code)
+{
+    if (!matrix_is_on(ROW(code), COL(code))) {
+        matrix[ROW(code)] |= 1<<COL(code);
+        is_modified = true;
+    }
+}
+
+inline
+static void matrix_break(uint8_t code)
+{
+    if (matrix_is_on(ROW(code), COL(code))) {
+        matrix[ROW(code)] &= ~(1<<COL(code));
+        is_modified = true;
+    }
+}
+
+static void ps2_reset(void)
+{
+    ps2_host_send(0xFF);
+    if (ps2_host_recv() != 0xFA) return;
+    _delay_ms(1000);
+    if (ps2_host_recv() != 0xAA) return;
+}
+
+static void ps2_set_leds(uint8_t leds)
+{
+        ps2_host_send(0xED);
+        if (ps2_host_recv() != 0xFA) return;        // 0xFA
+        ps2_host_send(leds);
+        if (ps2_host_recv() != 0xFA) return;        // 0xFA
+}
diff --git a/ps2_vusb/usart_print.c b/ps2_vusb/usart_print.c
new file mode 100644
index 000000000..2dfc949ba
--- /dev/null
+++ b/ps2_vusb/usart_print.c
@@ -0,0 +1,53 @@
+/* Name: oddebug.c
+ * Project: AVR library
+ * Author: Christian Starkjohann
+ * Creation Date: 2005-01-16
+ * Tabsize: 4
+ * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
+ * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
+ * This Revision: $Id: oddebug.c 692 2008-11-07 15:07:40Z cs $
+ */
+
+#include "usart_print.h"
+#include "sendchar.h"
+
+
+int8_t sendchar(uint8_t c)
+{
+    while(!(ODDBG_USR & (1 << ODDBG_UDRE)));    /* wait for data register empty */
+    ODDBG_UDR = c;
+    return 0;
+}
+
+void uartPutc(char c)
+{
+    while(!(ODDBG_USR & (1 << ODDBG_UDRE)));    /* wait for data register empty */
+    ODDBG_UDR = c;
+}
+
+static uchar    hexAscii(uchar h)
+{
+    h &= 0xf;
+    if(h >= 10)
+        h += 'a' - (uchar)10 - '0';
+    h += '0';
+    return h;
+}
+
+void printHex(uchar c)
+{
+    uartPutc(hexAscii(c >> 4));
+    uartPutc(hexAscii(c));
+}
+
+void    odDebug(uchar prefix, uchar *data, uchar len)
+{
+    printHex(prefix);
+    uartPutc(':');
+    while(len--){
+        uartPutc(' ');
+        printHex(*data++);
+    }
+    uartPutc('\r');
+    uartPutc('\n');
+}
diff --git a/ps2_vusb/usart_print.h b/ps2_vusb/usart_print.h
new file mode 100644
index 000000000..e6e83a081
--- /dev/null
+++ b/ps2_vusb/usart_print.h
@@ -0,0 +1,121 @@
+/* Name: oddebug.h
+ * Project: AVR library
+ * Author: Christian Starkjohann
+ * Creation Date: 2005-01-16
+ * Tabsize: 4
+ * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
+ * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
+ * This Revision: $Id: oddebug.h 692 2008-11-07 15:07:40Z cs $
+ */
+
+#ifndef __oddebug_h_included__
+#define __oddebug_h_included__
+
+/*
+General Description:
+This module implements a function for debug logs on the serial line of the
+AVR microcontroller. Debugging can be configured with the define
+'DEBUG_LEVEL'. If this macro is not defined or defined to 0, all debugging
+calls are no-ops. If it is 1, DBG1 logs will appear, but not DBG2. If it is
+2, DBG1 and DBG2 logs will be printed.
+
+A debug log consists of a label ('prefix') to indicate which debug log created
+the output and a memory block to dump in hex ('data' and 'len').
+*/
+
+
+#ifndef F_CPU
+#   define  F_CPU   12000000    /* 12 MHz */
+#endif
+
+/* make sure we have the UART defines: */
+#include "usbportability.h"
+
+#ifndef uchar
+#   define  uchar   unsigned char
+#endif
+
+#if DEBUG_LEVEL > 0 && !(defined TXEN || defined TXEN0) /* no UART in device */
+#   warning "Debugging disabled because device has no UART"
+#   undef   DEBUG_LEVEL
+#endif
+
+#ifndef DEBUG_LEVEL
+#   define  DEBUG_LEVEL 0
+#endif
+
+/* ------------------------------------------------------------------------- */
+
+#if DEBUG_LEVEL > 0
+#   define  DBG1(prefix, data, len) odDebug(prefix, data, len)
+#else
+#   define  DBG1(prefix, data, len)
+#endif
+
+#if DEBUG_LEVEL > 1
+#   define  DBG2(prefix, data, len) odDebug(prefix, data, len)
+#else
+#   define  DBG2(prefix, data, len)
+#endif
+
+/* ------------------------------------------------------------------------- */
+
+extern void odDebug(uchar prefix, uchar *data, uchar len);
+void uartPutc(char c);
+void printHex(uchar c);
+
+/* Try to find our control registers; ATMEL likes to rename these */
+
+#if defined UBRR
+#   define  ODDBG_UBRR  UBRR
+#elif defined UBRRL
+#   define  ODDBG_UBRR  UBRRL
+#elif defined UBRR0
+#   define  ODDBG_UBRR  UBRR0
+#elif defined UBRR0L
+#   define  ODDBG_UBRR  UBRR0L
+#endif
+
+#if defined UCR
+#   define  ODDBG_UCR   UCR
+#elif defined UCSRB
+#   define  ODDBG_UCR   UCSRB
+#elif defined UCSR0B
+#   define  ODDBG_UCR   UCSR0B
+#endif
+
+#if defined TXEN
+#   define  ODDBG_TXEN  TXEN
+#else
+#   define  ODDBG_TXEN  TXEN0
+#endif
+
+#if defined USR
+#   define  ODDBG_USR   USR
+#elif defined UCSRA
+#   define  ODDBG_USR   UCSRA
+#elif defined UCSR0A
+#   define  ODDBG_USR   UCSR0A
+#endif
+
+#if defined UDRE
+#   define  ODDBG_UDRE  UDRE
+#else
+#   define  ODDBG_UDRE  UDRE0
+#endif
+
+#if defined UDR
+#   define  ODDBG_UDR   UDR
+#elif defined UDR0
+#   define  ODDBG_UDR   UDR0
+#endif
+
+static inline void  odDebugInit(void)
+{
+    ODDBG_UCR |= (1<<ODDBG_TXEN);
+    ODDBG_UBRR = F_CPU / (57600 * 16L) - 1;
+}
+
+/* ------------------------------------------------------------------------- */
+
+#endif /* __oddebug_h_included__ */
diff --git a/ps2_vusb/usbconfig.h b/ps2_vusb/usbconfig.h
new file mode 100644
index 000000000..12bf1d539
--- /dev/null
+++ b/ps2_vusb/usbconfig.h
@@ -0,0 +1,373 @@
+/* Name: usbconfig.h
+ * Project: V-USB, virtual USB port for Atmel's(r) AVR(r) microcontrollers
+ * Author: Christian Starkjohann
+ * Creation Date: 2005-04-01
+ * Tabsize: 4
+ * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
+ * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
+ * This Revision: $Id: usbconfig-prototype.h 785 2010-05-30 17:57:07Z cs $
+ */
+
+#ifndef __usbconfig_h_included__
+#define __usbconfig_h_included__
+
+/*
+General Description:
+This file is an example configuration (with inline documentation) for the USB
+driver. It configures V-USB for USB D+ connected to Port D bit 2 (which is
+also hardware interrupt 0 on many devices) and USB D- to Port D bit 4. You may
+wire the lines to any other port, as long as D+ is also wired to INT0 (or any
+other hardware interrupt, as long as it is the highest level interrupt, see
+section at the end of this file).
+*/
+
+/* ---------------------------- Hardware Config ---------------------------- */
+
+#define USB_CFG_IOPORTNAME      D
+/* This is the port where the USB bus is connected. When you configure it to
+ * "B", the registers PORTB, PINB and DDRB will be used.
+ */
+#define USB_CFG_DMINUS_BIT      4
+/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected.
+ * This may be any bit in the port.
+ */
+#define USB_CFG_DPLUS_BIT       2
+/* This is the bit number in USB_CFG_IOPORT where the USB D+ line is connected.
+ * This may be any bit in the port. Please note that D+ must also be connected
+ * to interrupt pin INT0! [You can also use other interrupts, see section
+ * "Optional MCU Description" below, or you can connect D- to the interrupt, as
+ * it is required if you use the USB_COUNT_SOF feature. If you use D- for the
+ * interrupt, the USB interrupt will also be triggered at Start-Of-Frame
+ * markers every millisecond.]
+ */
+#define USB_CFG_CLOCK_KHZ       (F_CPU/1000)
+/* Clock rate of the AVR in kHz. Legal values are 12000, 12800, 15000, 16000,
+ * 16500, 18000 and 20000. The 12.8 MHz and 16.5 MHz versions of the code
+ * require no crystal, they tolerate +/- 1% deviation from the nominal
+ * frequency. All other rates require a precision of 2000 ppm and thus a
+ * crystal!
+ * Since F_CPU should be defined to your actual clock rate anyway, you should
+ * not need to modify this setting.
+ */
+#define USB_CFG_CHECK_CRC       0
+/* Define this to 1 if you want that the driver checks integrity of incoming
+ * data packets (CRC checks). CRC checks cost quite a bit of code size and are
+ * currently only available for 18 MHz crystal clock. You must choose
+ * USB_CFG_CLOCK_KHZ = 18000 if you enable this option.
+ */
+
+/* ----------------------- Optional Hardware Config ------------------------ */
+
+/* #define USB_CFG_PULLUP_IOPORTNAME   D */
+/* If you connect the 1.5k pullup resistor from D- to a port pin instead of
+ * V+, you can connect and disconnect the device from firmware by calling
+ * the macros usbDeviceConnect() and usbDeviceDisconnect() (see usbdrv.h).
+ * This constant defines the port on which the pullup resistor is connected.
+ */
+/* #define USB_CFG_PULLUP_BIT          4 */
+/* This constant defines the bit number in USB_CFG_PULLUP_IOPORT (defined
+ * above) where the 1.5k pullup resistor is connected. See description
+ * above for details.
+ */
+
+/* --------------------------- Functional Range ---------------------------- */
+
+#define USB_CFG_HAVE_INTRIN_ENDPOINT    1
+/* Define this to 1 if you want to compile a version with two endpoints: The
+ * default control endpoint 0 and an interrupt-in endpoint (any other endpoint
+ * number).
+ */
+#define USB_CFG_HAVE_INTRIN_ENDPOINT3   0
+/* Define this to 1 if you want to compile a version with three endpoints: The
+ * default control endpoint 0, an interrupt-in endpoint 3 (or the number
+ * configured below) and a catch-all default interrupt-in endpoint as above.
+ * You must also define USB_CFG_HAVE_INTRIN_ENDPOINT to 1 for this feature.
+ */
+#define USB_CFG_EP3_NUMBER              3
+/* If the so-called endpoint 3 is used, it can now be configured to any other
+ * endpoint number (except 0) with this macro. Default if undefined is 3.
+ */
+/* #define USB_INITIAL_DATATOKEN           USBPID_DATA1 */
+/* The above macro defines the startup condition for data toggling on the
+ * interrupt/bulk endpoints 1 and 3. Defaults to USBPID_DATA1.
+ * Since the token is toggled BEFORE sending any data, the first packet is
+ * sent with the oposite value of this configuration!
+ */
+#define USB_CFG_IMPLEMENT_HALT          0
+/* Define this to 1 if you also want to implement the ENDPOINT_HALT feature
+ * for endpoint 1 (interrupt endpoint). Although you may not need this feature,
+ * it is required by the standard. We have made it a config option because it
+ * bloats the code considerably.
+ */
+#define USB_CFG_SUPPRESS_INTR_CODE      0
+/* Define this to 1 if you want to declare interrupt-in endpoints, but don't
+ * want to send any data over them. If this macro is defined to 1, functions
+ * usbSetInterrupt() and usbSetInterrupt3() are omitted. This is useful if
+ * you need the interrupt-in endpoints in order to comply to an interface
+ * (e.g. HID), but never want to send any data. This option saves a couple
+ * of bytes in flash memory and the transmit buffers in RAM.
+ */
+#define USB_CFG_INTR_POLL_INTERVAL      10
+/* If you compile a version with endpoint 1 (interrupt-in), this is the poll
+ * interval. The value is in milliseconds and must not be less than 10 ms for
+ * low speed devices.
+ */
+#define USB_CFG_IS_SELF_POWERED         0
+/* Define this to 1 if the device has its own power supply. Set it to 0 if the
+ * device is powered from the USB bus.
+ */
+#define USB_CFG_MAX_BUS_POWER           100
+/* Set this variable to the maximum USB bus power consumption of your device.
+ * The value is in milliamperes. [It will be divided by two since USB
+ * communicates power requirements in units of 2 mA.]
+ */
+#define USB_CFG_IMPLEMENT_FN_WRITE      0
+/* Set this to 1 if you want usbFunctionWrite() to be called for control-out
+ * transfers. Set it to 0 if you don't need it and want to save a couple of
+ * bytes.
+ */
+#define USB_CFG_IMPLEMENT_FN_READ       0
+/* Set this to 1 if you need to send control replies which are generated
+ * "on the fly" when usbFunctionRead() is called. If you only want to send
+ * data from a static buffer, set it to 0 and return the data from
+ * usbFunctionSetup(). This saves a couple of bytes.
+ */
+#define USB_CFG_IMPLEMENT_FN_WRITEOUT   0
+/* Define this to 1 if you want to use interrupt-out (or bulk out) endpoints.
+ * You must implement the function usbFunctionWriteOut() which receives all
+ * interrupt/bulk data sent to any endpoint other than 0. The endpoint number
+ * can be found in 'usbRxToken'.
+ */
+#define USB_CFG_HAVE_FLOWCONTROL        0
+/* Define this to 1 if you want flowcontrol over USB data. See the definition
+ * of the macros usbDisableAllRequests() and usbEnableAllRequests() in
+ * usbdrv.h.
+ */
+#define USB_CFG_DRIVER_FLASH_PAGE       0
+/* If the device has more than 64 kBytes of flash, define this to the 64 k page
+ * where the driver's constants (descriptors) are located. Or in other words:
+ * Define this to 1 for boot loaders on the ATMega128.
+ */
+#define USB_CFG_LONG_TRANSFERS          0
+/* Define this to 1 if you want to send/receive blocks of more than 254 bytes
+ * in a single control-in or control-out transfer. Note that the capability
+ * for long transfers increases the driver size.
+ */
+/* #define USB_RX_USER_HOOK(data, len)     if(usbRxToken == (uchar)USBPID_SETUP) blinkLED(); */
+/* This macro is a hook if you want to do unconventional things. If it is
+ * defined, it's inserted at the beginning of received message processing.
+ * If you eat the received message and don't want default processing to
+ * proceed, do a return after doing your things. One possible application
+ * (besides debugging) is to flash a status LED on each packet.
+ */
+/* #define USB_RESET_HOOK(resetStarts)     if(!resetStarts){hadUsbReset();} */
+/* This macro is a hook if you need to know when an USB RESET occurs. It has
+ * one parameter which distinguishes between the start of RESET state and its
+ * end.
+ */
+/* #define USB_SET_ADDRESS_HOOK()              hadAddressAssigned(); */
+/* This macro (if defined) is executed when a USB SET_ADDRESS request was
+ * received.
+ */
+#define USB_COUNT_SOF                   0
+/* define this macro to 1 if you need the global variable "usbSofCount" which
+ * counts SOF packets. This feature requires that the hardware interrupt is
+ * connected to D- instead of D+.
+ */
+/* #ifdef __ASSEMBLER__
+ * macro myAssemblerMacro
+ *     in      YL, TCNT0
+ *     sts     timer0Snapshot, YL
+ *     endm
+ * #endif
+ * #define USB_SOF_HOOK                    myAssemblerMacro
+ * This macro (if defined) is executed in the assembler module when a
+ * Start Of Frame condition is detected. It is recommended to define it to
+ * the name of an assembler macro which is defined here as well so that more
+ * than one assembler instruction can be used. The macro may use the register
+ * YL and modify SREG. If it lasts longer than a couple of cycles, USB messages
+ * immediately after an SOF pulse may be lost and must be retried by the host.
+ * What can you do with this hook? Since the SOF signal occurs exactly every
+ * 1 ms (unless the host is in sleep mode), you can use it to tune OSCCAL in
+ * designs running on the internal RC oscillator.
+ * Please note that Start Of Frame detection works only if D- is wired to the
+ * interrupt, not D+. THIS IS DIFFERENT THAN MOST EXAMPLES!
+ */
+#define USB_CFG_CHECK_DATA_TOGGLING     0
+/* define this macro to 1 if you want to filter out duplicate data packets
+ * sent by the host. Duplicates occur only as a consequence of communication
+ * errors, when the host does not receive an ACK. Please note that you need to
+ * implement the filtering yourself in usbFunctionWriteOut() and
+ * usbFunctionWrite(). Use the global usbCurrentDataToken and a static variable
+ * for each control- and out-endpoint to check for duplicate packets.
+ */
+#define USB_CFG_HAVE_MEASURE_FRAME_LENGTH   0
+/* define this macro to 1 if you want the function usbMeasureFrameLength()
+ * compiled in. This function can be used to calibrate the AVR's RC oscillator.
+ */
+#define USB_USE_FAST_CRC                0
+/* The assembler module has two implementations for the CRC algorithm. One is
+ * faster, the other is smaller. This CRC routine is only used for transmitted
+ * messages where timing is not critical. The faster routine needs 31 cycles
+ * per byte while the smaller one needs 61 to 69 cycles. The faster routine
+ * may be worth the 32 bytes bigger code size if you transmit lots of data and
+ * run the AVR close to its limit.
+ */
+
+/* -------------------------- Device Description --------------------------- */
+
+#define  USB_CFG_VENDOR_ID       0xc0, 0x16 /* = 0x16c0 = 5824 = voti.nl */
+/* USB vendor ID for the device, low byte first. If you have registered your
+ * own Vendor ID, define it here. Otherwise you may use one of obdev's free
+ * shared VID/PID pairs. Be sure to read USB-IDs-for-free.txt for rules!
+ * *** IMPORTANT NOTE ***
+ * This template uses obdev's shared VID/PID pair for Vendor Class devices
+ * with libusb: 0x16c0/0x5dc.  Use this VID/PID pair ONLY if you understand
+ * the implications!
+ */
+#define  USB_CFG_DEVICE_ID       0xdd, 0x05 /* = 0x05dc = 1500 */
+/* This is the ID of the product, low byte first. It is interpreted in the
+ * scope of the vendor ID. If you have registered your own VID with usb.org
+ * or if you have licensed a PID from somebody else, define it here. Otherwise
+ * you may use one of obdev's free shared VID/PID pairs. See the file
+ * USB-IDs-for-free.txt for details!
+ * *** IMPORTANT NOTE ***
+ * This template uses obdev's shared VID/PID pair for Vendor Class devices
+ * with libusb: 0x16c0/0x5dc.  Use this VID/PID pair ONLY if you understand
+ * the implications!
+ */
+#define USB_CFG_DEVICE_VERSION  0x00, 0x01
+/* Version number of the device: Minor number first, then major number.
+ */
+#define USB_CFG_VENDOR_NAME     't', '.', 'm', '.', 'k', '.'
+#define USB_CFG_VENDOR_NAME_LEN 6
+/* These two values define the vendor name returned by the USB device. The name
+ * must be given as a list of characters under single quotes. The characters
+ * are interpreted as Unicode (UTF-16) entities.
+ * If you don't want a vendor name string, undefine these macros.
+ * ALWAYS define a vendor name containing your Internet domain name if you use
+ * obdev's free shared VID/PID pair. See the file USB-IDs-for-free.txt for
+ * details.
+ */
+#define USB_CFG_DEVICE_NAME     'k', 'e', 'y', 'b', 'o', 'a', 'r', 'd'
+#define USB_CFG_DEVICE_NAME_LEN 8
+/* Same as above for the device name. If you don't want a device name, undefine
+ * the macros. See the file USB-IDs-for-free.txt before you assign a name if
+ * you use a shared VID/PID.
+ */
+/*#define USB_CFG_SERIAL_NUMBER   'N', 'o', 'n', 'e' */
+/*#define USB_CFG_SERIAL_NUMBER_LEN   0 */
+/* Same as above for the serial number. If you don't want a serial number,
+ * undefine the macros.
+ * It may be useful to provide the serial number through other means than at
+ * compile time. See the section about descriptor properties below for how
+ * to fine tune control over USB descriptors such as the string descriptor
+ * for the serial number.
+ */
+#define USB_CFG_DEVICE_CLASS        0
+#define USB_CFG_DEVICE_SUBCLASS     0
+/* See USB specification if you want to conform to an existing device class.
+ * Class 0xff is "vendor specific".
+ */
+#define USB_CFG_INTERFACE_CLASS     3   /* HID */
+#define USB_CFG_INTERFACE_SUBCLASS  1   /* Boot */
+#define USB_CFG_INTERFACE_PROTOCOL  1   /* Keyboard */
+/* See USB specification if you want to conform to an existing device class or
+ * protocol. The following classes must be set at interface level:
+ * HID class is 3, no subclass and protocol required (but may be useful!)
+ * CDC class is 2, use subclass 2 and protocol 1 for ACM
+ */
+#define USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH    63
+/* Define this to the length of the HID report descriptor, if you implement
+ * an HID device. Otherwise don't define it or define it to 0.
+ * If you use this define, you must add a PROGMEM character array named
+ * "usbHidReportDescriptor" to your code which contains the report descriptor.
+ * Don't forget to keep the array and this define in sync!
+ */
+
+/* #define USB_PUBLIC static */
+/* Use the define above if you #include usbdrv.c instead of linking against it.
+ * This technique saves a couple of bytes in flash memory.
+ */
+
+/* ------------------- Fine Control over USB Descriptors ------------------- */
+/* If you don't want to use the driver's default USB descriptors, you can
+ * provide our own. These can be provided as (1) fixed length static data in
+ * flash memory, (2) fixed length static data in RAM or (3) dynamically at
+ * runtime in the function usbFunctionDescriptor(). See usbdrv.h for more
+ * information about this function.
+ * Descriptor handling is configured through the descriptor's properties. If
+ * no properties are defined or if they are 0, the default descriptor is used.
+ * Possible properties are:
+ *   + USB_PROP_IS_DYNAMIC: The data for the descriptor should be fetched
+ *     at runtime via usbFunctionDescriptor(). If the usbMsgPtr mechanism is
+ *     used, the data is in FLASH by default. Add property USB_PROP_IS_RAM if
+ *     you want RAM pointers.
+ *   + USB_PROP_IS_RAM: The data returned by usbFunctionDescriptor() or found
+ *     in static memory is in RAM, not in flash memory.
+ *   + USB_PROP_LENGTH(len): If the data is in static memory (RAM or flash),
+ *     the driver must know the descriptor's length. The descriptor itself is
+ *     found at the address of a well known identifier (see below).
+ * List of static descriptor names (must be declared PROGMEM if in flash):
+ *   char usbDescriptorDevice[];
+ *   char usbDescriptorConfiguration[];
+ *   char usbDescriptorHidReport[];
+ *   char usbDescriptorString0[];
+ *   int usbDescriptorStringVendor[];
+ *   int usbDescriptorStringDevice[];
+ *   int usbDescriptorStringSerialNumber[];
+ * Other descriptors can't be provided statically, they must be provided
+ * dynamically at runtime.
+ *
+ * Descriptor properties are or-ed or added together, e.g.:
+ * #define USB_CFG_DESCR_PROPS_DEVICE   (USB_PROP_IS_RAM | USB_PROP_LENGTH(18))
+ *
+ * The following descriptors are defined:
+ *   USB_CFG_DESCR_PROPS_DEVICE
+ *   USB_CFG_DESCR_PROPS_CONFIGURATION
+ *   USB_CFG_DESCR_PROPS_STRINGS
+ *   USB_CFG_DESCR_PROPS_STRING_0
+ *   USB_CFG_DESCR_PROPS_STRING_VENDOR
+ *   USB_CFG_DESCR_PROPS_STRING_PRODUCT
+ *   USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER
+ *   USB_CFG_DESCR_PROPS_HID
+ *   USB_CFG_DESCR_PROPS_HID_REPORT
+ *   USB_CFG_DESCR_PROPS_UNKNOWN (for all descriptors not handled by the driver)
+ *
+ * Note about string descriptors: String descriptors are not just strings, they
+ * are Unicode strings prefixed with a 2 byte header. Example:
+ * int  serialNumberDescriptor[] = {
+ *     USB_STRING_DESCRIPTOR_HEADER(6),
+ *     'S', 'e', 'r', 'i', 'a', 'l'
+ * };
+ */
+
+#define USB_CFG_DESCR_PROPS_DEVICE                  0
+#define USB_CFG_DESCR_PROPS_CONFIGURATION           0
+#define USB_CFG_DESCR_PROPS_STRINGS                 0
+#define USB_CFG_DESCR_PROPS_STRING_0                0
+#define USB_CFG_DESCR_PROPS_STRING_VENDOR           0
+#define USB_CFG_DESCR_PROPS_STRING_PRODUCT          0
+#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER    0
+#define USB_CFG_DESCR_PROPS_HID                     0
+#define USB_CFG_DESCR_PROPS_HID_REPORT              0
+#define USB_CFG_DESCR_PROPS_UNKNOWN                 0
+
+/* ----------------------- Optional MCU Description ------------------------ */
+
+/* The following configurations have working defaults in usbdrv.h. You
+ * usually don't need to set them explicitly. Only if you want to run
+ * the driver on a device which is not yet supported or with a compiler
+ * which is not fully supported (such as IAR C) or if you use a differnt
+ * interrupt than INT0, you may have to define some of these.
+ */
+/* #define USB_INTR_CFG            MCUCR */
+/* #define USB_INTR_CFG_SET        ((1 << ISC00) | (1 << ISC01)) */
+/* #define USB_INTR_CFG_CLR        0 */
+/* #define USB_INTR_ENABLE         GIMSK */
+/* #define USB_INTR_ENABLE_BIT     INT0 */
+/* #define USB_INTR_PENDING        GIFR */
+/* #define USB_INTR_PENDING_BIT    INTF0 */
+/* #define USB_INTR_VECTOR         INT0_vect */
+
+#endif /* __usbconfig_h_included__ */