Merge branch 'overlays'

6 files changed, 749 insertions, 0 deletions

diff --git a/converter/pc98_usb/Makefile b/converter/pc98_usb/Makefile
new file mode 100644
index 0000000000..2575d86672
--- /dev/null
+++ b/converter/pc98_usb/Makefile
@@ -0,0 +1,83 @@
+# Target file name (without extension).
+TARGET = pc98_usb
+
+# Directory common source filess exist
+TOP_DIR = ../..
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+# keyboard dependent files
+SRC =	keymap.c \
+	matrix.c \
+	led.c \
+	protocol/serial_uart.c
+#	protocol/serial_soft.c
+
+CONFIG_H = config.h
+
+
+# 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
+
+
+# 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
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Build Options
+#   *Comment out* to disable the options.
+#
+MOUSEKEY_ENABLE = yes	# Mouse keys
+EXTRAKEY_ENABLE = yes	# Audio control and System control
+CONSOLE_ENABLE = yes	# Console for debug
+#NKRO_ENABLE = yes	# USB Nkey Rollover
+
+
+# Boot Section Size in bytes
+#   Teensy halfKay   512
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+OPT_DEFS += -DBOOT_SIZE=4096
+
+
+# Search Path
+VPATH += $(TARGET_DIR)
+VPATH += $(TOP_DIR)
+
+
+include $(TOP_DIR)/protocol/lufa.mk
+include $(TOP_DIR)/protocol.mk
+include $(TOP_DIR)/common.mk
+include $(TOP_DIR)/rules.mk
diff --git a/converter/pc98_usb/README b/converter/pc98_usb/README
new file mode 100644
index 0000000000..23f1b614e6
--- /dev/null
+++ b/converter/pc98_usb/README
@@ -0,0 +1,70 @@
+PC98 to USB keyboard protocol converter
+=======================================
+Target MCU is ATMega32u4 but other USB capable AVR will also work.
+
+
+Connector
+---------
+
+    8Pin mini DIN
+       ___ ___
+      /  |_|  \
+     / 8  7  6 \
+    | 5    4  3 |
+     \_ 2   1 _/
+       \_____/  
+     (receptacle)
+
+
+Wiring: You can change this with ediging config.h.
+
+    Pin mini DIN        MCU
+    ----------------------------------
+    1  ~RST             PD1
+    2   GND             GND
+    3  ~RDY             PD4
+    4   RXD             PD2
+    5  ~RTY             PD5
+    6   NC                 
+    7   NC                 
+    8   5V              VCC
+
+
+
+
+Protocol
+--------
+Singnal: Asynchronous, Positive logic, 19200baud, Least bit first
+Frame format: 1-Start bit(Lo), 8-Data bits, Odd-Parity, 1-Stop bit
+
+This converter uses software method for testing purpose. AVR UART engine will work better.
+
+
+
+
+Build Firmware
+--------------
+Just use 'make'
+
+    $ cd pc98_usb
+    $ make
+
+Then, load the binary to MCU with your favorite programmer.
+
+
+
+Other PC98 converter projects and resource
+------------------------------------------
+PC98 to USB
+http://davy.nyacom.net/kbd98usb/
+
+PC98 to PS/2
+http://www.tsp.ne.jp/~sawada/mago/c_gka98at.htm
+http://www.tsp.ne.jp/~sawada/mago/src/gka98at.asm
+
+PC98 keyboard commands
+http://www.webtech.co.jp/company/doc/undocumented_mem/io_kb.txt
+
+
+Inhibit repeating key:
+0x9C, 0x70
diff --git a/converter/pc98_usb/config.h b/converter/pc98_usb/config.h
new file mode 100644
index 0000000000..4f91c07ce4
--- /dev/null
+++ b/converter/pc98_usb/config.h
@@ -0,0 +1,126 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x9898
+#define DEVICE_VER      0x0100
+#define MANUFACTURER    t.m.k.
+#define PRODUCT         PC98 keyboard converter
+#define DESCRIPTION     converts PC98 keyboard protocol into USB
+
+
+/* matrix size */
+#define MATRIX_ROWS     16
+#define MATRIX_COLS     8
+
+/* To use new keymap framework */
+#define USE_KEYMAP_V2
+
+/* key combination for command */
+#define IS_COMMAND()    ( \
+    host_get_first_key() == KC_CANCEL \
+)
+
+
+/* PC98 Reset Port shared with TXD */
+#define PC98_RST_DDR    DDRD
+#define PC98_RST_PORT   PORTD
+#define PC98_RST_BIT    3
+/* PC98 Ready Port */
+#define PC98_RDY_DDR    DDRD
+#define PC98_RDY_PORT   PORTD
+#define PC98_RDY_BIT    4
+/* PC98 Retry Port */
+#define PC98_RTY_DDR    DDRD
+#define PC98_RTY_PORT   PORTD
+#define PC98_RTY_BIT    5
+
+/*
+ * PC98 Serial(USART) configuration
+ *     asynchronous, positive logic, 19200baud, bit order: LSB first
+ *     1-start bit, 8-data bit, odd parity, 1-stop bit
+ */
+/*
+ * Software Serial
+ */
+#define SERIAL_SOFT_BAUD                19200
+#define SERIAL_SOFT_PARITY_ODD
+#define SERIAL_SOFT_BIT_ORDER_LSB
+#define SERIAL_SOFT_LOGIC_POSITIVE
+/* RXD Port */
+#define SERIAL_SOFT_RXD_DDR             DDRD
+#define SERIAL_SOFT_RXD_PORT            PORTD
+#define SERIAL_SOFT_RXD_PIN             PIND
+#define SERIAL_SOFT_RXD_BIT             2
+#define SERIAL_SOFT_RXD_READ()          (SERIAL_SOFT_RXD_PIN&(1<<SERIAL_SOFT_RXD_BIT))
+/* RXD Interupt */
+#define SERIAL_SOFT_RXD_VECT            INT2_vect
+#define SERIAL_SOFT_RXD_INIT()          do { \
+    /* pin configuration: input with pull-up */ \
+    SERIAL_SOFT_RXD_DDR &= ~(1<<SERIAL_SOFT_RXD_BIT); \
+    SERIAL_SOFT_RXD_PORT |= (1<<SERIAL_SOFT_RXD_BIT); \
+    /* enable interrupt: INT2(falling edge) */ \
+    EICRA |= ((1<<ISC21)|(0<<ISC20)); \
+    EIMSK |= (1<<INT2); \
+    sei(); \
+} while (0)
+#define SERIAL_SOFT_RXD_INT_ENTER()
+#define SERIAL_SOFT_RXD_INT_EXIT()      do { \
+    /* clear interrupt  flag */ \
+    EIFR = (1<<INTF2); \
+} while (0)
+/* TXD Port */
+#define SERIAL_SOFT_TXD_DDR             DDRD
+#define SERIAL_SOFT_TXD_PORT            PORTD
+#define SERIAL_SOFT_TXD_PIN             PIND
+#define SERIAL_SOFT_TXD_BIT             3
+#define SERIAL_SOFT_TXD_HI()            do { SERIAL_SOFT_TXD_PORT |=  (1<<SERIAL_SOFT_TXD_BIT); } while (0)
+#define SERIAL_SOFT_TXD_LO()            do { SERIAL_SOFT_TXD_PORT &= ~(1<<SERIAL_SOFT_TXD_BIT); } while (0)
+#define SERIAL_SOFT_TXD_INIT()          do { \
+    /* pin configuration: output */ \
+    SERIAL_SOFT_TXD_DDR |= (1<<SERIAL_SOFT_TXD_BIT); \
+    /* idle */ \
+    SERIAL_SOFT_TXD_ON(); \
+} while (0)
+
+
+/*
+ * Hardware Serial(UART)
+ */
+#ifdef __AVR_ATmega32U4__
+    #define SERIAL_UART_BAUD       19200
+    #define SERIAL_UART_DATA       UDR1
+    #define SERIAL_UART_UBRR       ((F_CPU/(16UL*SERIAL_UART_BAUD))-1)
+    #define SERIAL_UART_RXD_VECT   USART1_RX_vect
+    #define SERIAL_UART_TXD_READY  (UCSR1A&(1<<UDRE1))
+    #define SERIAL_UART_INIT()     do { \
+        UBRR1L = (uint8_t) SERIAL_UART_UBRR;       /* baud rate */ \
+        UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8);  /* baud rate */ \
+        UCSR1B |= (1<<RXCIE1) | (1<<RXEN1); /* RX interrupt, RX: enable */ \
+        UCSR1B |= (0<<TXCIE1) | (1<<TXEN1); /* TX interrupt, TX: enable */ \
+        UCSR1C |= (1<<UPM11) | (1<<UPM10);  /* parity: none(00), even(01), odd(11) */ \
+        sei(); \
+    } while(0)
+#else
+    #error "USART configuration is needed."
+#endif
+
+
+#endif
diff --git a/converter/pc98_usb/keymap.c b/converter/pc98_usb/keymap.c
new file mode 100644
index 0000000000..279b2b60c0
--- /dev/null
+++ b/converter/pc98_usb/keymap.c
@@ -0,0 +1,222 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/pgmspace.h>
+#include "keycode.h"
+#include "action.h"
+#include "action_macro.h"
+#include "layer_switch.h"
+#include "util.h"
+#include "keymap.h"
+
+
+
+
+/* PC-9801-98-S02   Raku Raku keyboard(Luckyboard) Normal Mode
+  ,---------------------------------------------------------------.
+  | 60| 61| 62| 63| 64| 65| 66| 67| 68| 69| 6A| 6B| 36| 37| 3F| 3E|
+  `---------------------------------------------------------------'
+  ,---------------------------------------------------------------.
+  |    00| 01| 02| 03| 04| 05|  58|  71| 06| 07| 08| 09| 0A|    0E|
+  |---------------------------------------------------------------|
+  |   0F| 10| 11| 12| 13| 14|    3A     | 15| 16| 17| 18| 19|   1C|
+  |---------------------------------------------------------'.    |
+  |  74| 20| 21| 22| 23| 24|  3B  |  3C  | 25| 26| 27| 28| 29|    |
+  |---------------------------------------------------------------|
+  | 70| 2A| 2B| 2C| 2D| 2E| 38|  3D   | 39| 2F| 30| 31| 32| 33| 70|
+  `---------------------------------------------------------------'
+          | 73|   51|   5B|   59|       34|   5A|   35| xx|
+          `-----------------------------------------------'
+  xx: 74 35 F4 B5
+*/
+#define KEYMAP( \
+    K60, K61, K62, K63, K64, K65, K66, K67, K68, K69, K6A, K6B, K36, K37, K3F, K3E, \
+      K00,  K01, K02, K03, K04, K05,  K58, K71,   K06, K07, K08, K09, K0A,    K0E,  \
+      K0F,  K10, K11, K12, K13, K14,     K3A,     K15, K16, K17, K18, K19,    K1C,  \
+      K74, K20, K21, K22, K23, K24,   K3B,  K3C,   K25, K26, K27, K28, K29,         \
+      K70,K2A, K2B, K2C, K2D, K2E, K38,  K3D,  K39, K2F, K30, K31, K32, K33,        \
+               K73,  K51, K5B, K59,        K34,        K5A,  K35                    \
+) { \
+    { KC_##K00, KC_##K01, KC_##K02, KC_##K03, KC_##K04, KC_##K05, KC_##K06, KC_##K07 }, \
+    { KC_##K08, KC_##K09, KC_##K0A, KC_NO,    KC_NO,    KC_NO,    KC_##K0E, KC_##K0F }, \
+    { KC_##K10, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16, KC_##K17 }, \
+    { KC_##K18, KC_##K19, KC_NO,    KC_NO,    KC_##K1C, KC_NO,    KC_NO,    KC_NO    }, \
+    { KC_##K20, KC_##K21, KC_##K22, KC_##K23, KC_##K24, KC_##K25, KC_##K26, KC_##K27 }, \
+    { KC_##K28, KC_##K29, KC_##K2A, KC_##K2B, KC_##K2C, KC_##K2D, KC_##K2E, KC_##K2F }, \
+    { KC_##K30, KC_##K31, KC_##K32, KC_##K33, KC_##K34, KC_##K35, KC_##K36, KC_##K37 }, \
+    { KC_##K38, KC_##K39, KC_##K3A, KC_##K3B, KC_##K3C, KC_##K3D, KC_##K3E, KC_##K3F }, \
+    { KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO    }, \
+    { KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO    }, \
+    { KC_NO,    KC_##K51, KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO    }, \
+    { KC_##K58, KC_##K59, KC_##K5A, KC_##K5B, KC_NO,    KC_NO,    KC_NO,    KC_NO    }, \
+    { KC_##K60, KC_##K61, KC_##K62, KC_##K63, KC_##K64, KC_##K65, KC_##K66, KC_##K67 }, \
+    { KC_##K68, KC_##K69, KC_##K6A, KC_##K6B, KC_NO,    KC_NO,    KC_NO,    KC_NO    }, \
+    { KC_##K70, KC_##K71, KC_NO,    KC_##K73, KC_##K74, KC_NO,    KC_NO,    KC_NO    }, \
+    { KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_NO    }  \
+}
+
+
+
+static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /*
+  ,---------------------------------------------------------------.
+  | 60| 61| 62| 63| 64| 65| 66| 67| 68| 69| 6A| 6B| 36| 37| 3F| 3E|
+  `---------------------------------------------------------------'
+  ,---------------------------------------------------------------.
+  |    00| 01| 02| 03| 04| 05|  58|  71| 06| 07| 08| 09| 0A|    0E|
+  |---------------------------------------------------------------|
+  |   0F| 10| 11| 12| 13| 14|    3A     | 15| 16| 17| 18| 19|   1C|
+  |---------------------------------------------------------------|
+  |  74| 20| 21| 22| 23| 24|  MINS|   EQL| 25| 26| 27| 28| 29|    |
+  |---------------------------------------------------------------|
+  | 70| 2A| 2B| 2C| 2D| 2E| 38|  3D   | 39| 2F| 30| 31| 32| 33| 70|
+  `---------------------------------------------------------------'
+          | 73|   51|   5B|   59|       34|   5A|   35| xx|
+          `-----------------------------------------------'
+    */
+    KEYMAP(
+  CANCEL,COPY,  F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9, F10, F11, F12, F13, FN6,
+      ESC,    1,   2,   3,   4,   5,   FN4, FN5,    6,   7,   8,   9,   0,   BSPC,
+      TAB,    Q,   W,   E,   R,   T,      UP,       Y,   U,   I,   O,   P,   ENT,
+      LCTL,  A,   S,   D,   F,   G,  MINS,  EQL,     H,   J,   K,   L, FN2,
+      LSFT, Z,   X,   C,   V,   B, GRV, BSLS, QUOT,   N,   M,COMM, DOT, FN1,
+              LGUI, LALT, LCTL, LSFT,      SPC,      SPC,   RALT
+    ),
+    KEYMAP(
+    PAUS,COPY,  F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9, F10, F11, F12, F13, F14,
+      GRV,   F1,  F2,  F3,  F4,  F5,    NO, NO,    F6,  F7,  F8,  F9, F10,    DEL,
+      TAB,    Q,   W,   E,   R,   T,      UP,    HOME,PGDN,PGUP, END,   P,   ENT,
+      LCTL,  A,   S,   D,   F,   G,  MINS,  EQL,  LEFT,DOWN,  UP,RGHT,SCLN,
+      LSFT, Z,   X,   C,   V,   B, INS, DOWN,  DEL,HOME,PGDN,PGUP, END,TRNS,
+              LGUI, LALT, LCTL, LSFT,      SPC,      SPC,   RALT
+    ),
+    KEYMAP(
+    PAUS,COPY,  F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9, F10, F11, F12, F13, F14,
+      GRV,   F1,  F2,  F3,  F4,  F5,    NO, NO,    F6,  F7,  F8,  F9, F10,    DEL,
+      TAB,    Q,   W,   E,   R,   T,      UP,    WH_L,WH_D,WH_U,WH_R,   P,   ENT,
+      LCTL,  A,   S,   D,   F,   G,  MINS,  EQL,  MS_L,MS_D,MS_U,MS_R,TRNS,
+      LSFT, Z,   X,   C,   V,   B, INS, DOWN, BTN3,BTN2,BTN1,BTN4,BTN5,TRNS,
+              LGUI, LALT, LCTL, LSFT,      SPC,      SPC,   RALT
+    ),
+};
+static const uint8_t PROGMEM overlays[][MATRIX_ROWS][MATRIX_COLS] = {};
+
+/*
+ * Macro definition
+ */
+enum macro_id {
+    LBRACKET,
+    RBRACKET,
+    DUMMY,
+};
+
+const prog_macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+    keyevent_t event = record->event;
+    //uint8_t tap_count = record->tap_count;
+
+    switch (id) {
+        case LBRACKET:
+            return (event.pressed ?
+                    MACRO( T(LBRC), END ) :
+                    MACRO( T(LBRC), END ) );
+        case RBRACKET:
+            return (event.pressed ?
+                    MACRO( T(RBRC), END ) :
+                    MACRO( T(RBRC), END ) );
+    }
+    return MACRO_NONE;
+}
+
+/*
+ * Action function
+ */
+void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+/*
+    keyevent_t event = record->event;
+    uint8_t tap_count = record->tap_count;
+    switch (id) {
+        case 0xFF:
+            action_macro_play(get_macro(opt, event.pressed));
+            break;
+    }
+*/
+}
+
+
+/*
+ * Fn actions
+ */
+static const uint16_t PROGMEM fn_actions[] = {
+    ACTION_KEYMAP_TAP_TOGGLE(0),                 // FN0
+    ACTION_KEYMAP_TAP_KEY(1, KC_SLASH),          // FN1
+    ACTION_KEYMAP_TAP_KEY(2, KC_SCLN),           // FN2
+    ACTION_KEYMAP_MOMENTARY(2),                  // FN3
+    ACTION_MACRO(LBRACKET),                      // FN4
+    ACTION_MACRO(RBRACKET),                      // FN5
+    ACTION_MACRO(DUMMY),                         // FN6
+};
+
+
+
+
+
+
+/*
+ * No need to edit.
+ */
+#define KEYMAPS_SIZE    (sizeof(keymaps) / sizeof(keymaps[0]))
+#define OVERLAYS_SIZE   (sizeof(overlays) / sizeof(overlays[0]))
+#define FN_ACTIONS_SIZE (sizeof(fn_actions) / sizeof(fn_actions[0]))
+
+/* translates key to keycode */
+uint8_t keymap_key_to_keycode(uint8_t layer, key_t key)
+{
+    /* Overlay: 16-31(OVERLAY_BIT(0x10) | overlay_layer) */
+    if (layer & OVERLAY_BIT) {
+        layer &= OVERLAY_MASK;
+        if (layer < OVERLAYS_SIZE) {
+            return pgm_read_byte(&overlays[(layer)][(key.row)][(key.col)]);
+        } else {
+            return KC_TRANSPARENT;
+        }
+    } 
+    /* Keymap: 0-15 */
+    else {
+        if (layer < KEYMAPS_SIZE) {
+            return pgm_read_byte(&keymaps[(layer)][(key.row)][(key.col)]);
+        } else {
+            // fall back to layer 0
+            return pgm_read_byte(&keymaps[0][(key.row)][(key.col)]);
+        }
+    }
+}
+
+/* translates Fn keycode to action */
+action_t keymap_fn_to_action(uint8_t keycode)
+{
+    action_t action;
+    if (FN_INDEX(keycode) < FN_ACTIONS_SIZE) {
+        action.code = pgm_read_word(&fn_actions[FN_INDEX(keycode)]);
+    } else {
+        action.code = ACTION_NO;
+    }
+    return action;
+}
diff --git a/converter/pc98_usb/led.c b/converter/pc98_usb/led.c
new file mode 100644
index 0000000000..48c3f1c2b2
--- /dev/null
+++ b/converter/pc98_usb/led.c
@@ -0,0 +1,33 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "stdint.h"
+#include "serial.h"
+#include "led.h"
+
+
+void led_set(uint8_t usb_led)
+{
+    uint8_t sun_led = 0;
+    if (usb_led & (1<<USB_LED_NUM_LOCK))    sun_led |= (1<<0);
+    if (usb_led & (1<<USB_LED_COMPOSE))     sun_led |= (1<<1);
+    if (usb_led & (1<<USB_LED_SCROLL_LOCK)) sun_led |= (1<<2);
+    if (usb_led & (1<<USB_LED_CAPS_LOCK))   sun_led |= (1<<3);
+
+    serial_send(0x0E);
+    serial_send(sun_led);
+}
diff --git a/converter/pc98_usb/matrix.c b/converter/pc98_usb/matrix.c
new file mode 100644
index 0000000000..d03aaf10d1
--- /dev/null
+++ b/converter/pc98_usb/matrix.c
@@ -0,0 +1,215 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "print.h"
+#include "util.h"
+#include "matrix.h"
+#include "debug.h"
+#include "protocol/serial.h"
+
+
+/*
+ * Matrix Array usage:
+ *
+ * ROW: 16(4bits)
+ * COL:  8(3bits)
+ *
+ *    8bit wide
+ *   +---------+
+ *  0|00 ... 07|
+ *  1|08 ... 0F|
+ *  :|   ...   |
+ *  :|   ...   |
+ *  E|70 ... 77|
+ *  F|78 ... 7F|
+ *   +---------+
+ */
+static uint8_t matrix[MATRIX_ROWS];
+#define ROW(code)      ((code>>3)&0xF)
+#define COL(code)      (code&0x07)
+
+static bool is_modified = false;
+
+
+inline
+uint8_t matrix_rows(void)
+{
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+    return MATRIX_COLS;
+}
+
+static void pc98_inhibit_repeat(void)
+{
+    uint8_t code;
+
+    while (serial_recv()) ;
+RETRY:
+    PC98_RDY_PORT |= (1<<PC98_RDY_BIT);
+    _delay_ms(500);
+    serial_send(0x9C);
+
+    PC98_RDY_PORT &= ~(1<<PC98_RDY_BIT);
+    _delay_ms(100);
+    while (!(code = serial_recv())) ;
+    print("PC98: send 9C: "); print_hex8(code); print("\n");
+    if (code != 0xFA) goto RETRY;
+
+
+
+    PC98_RDY_PORT |= (1<<PC98_RDY_BIT);
+    _delay_ms(100);
+    serial_send(0x70);
+
+    PC98_RDY_PORT &= ~(1<<PC98_RDY_BIT);
+    _delay_ms(100);
+    //code = serial_recv();
+    while (!(code = serial_recv())) ;
+    print("PC98: send 70: "); print_hex8(code); print("\n");
+    if (code != 0xFA) goto RETRY;
+}
+
+void matrix_init(void)
+{
+    print_enable = true;
+//    debug_enable = true;
+//    debug_matrix = true;
+
+    PC98_RST_DDR |= (1<<PC98_RST_BIT);
+    PC98_RDY_DDR |= (1<<PC98_RDY_BIT);
+    PC98_RTY_DDR |= (1<<PC98_RTY_BIT);
+    PC98_RST_PORT |= (1<<PC98_RST_BIT);
+    PC98_RDY_PORT |= (1<<PC98_RDY_BIT);
+    PC98_RTY_PORT |= (1<<PC98_RTY_BIT);
+
+
+    serial_init();
+
+    // PC98 reset
+/*
+    PC98_RST_PORT &= ~(1<<PC98_RST_BIT);
+    _delay_us(15);
+    PC98_RST_PORT |= (1<<PC98_RST_BIT);
+    _delay_us(13);
+    PC98_RDY_PORT &= ~(1<<PC98_RDY_BIT);
+*/
+
+    _delay_ms(500);
+    pc98_inhibit_repeat();
+
+
+    // PC98 ready
+    PC98_RDY_PORT &= ~(1<<PC98_RDY_BIT);
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
+
+    debug("init\n");
+    return;
+}
+
+uint8_t matrix_scan(void)
+{
+    is_modified = false;
+
+    uint16_t code;
+    PC98_RDY_PORT |= (1<<PC98_RDY_BIT);
+    _delay_us(30);
+    code = serial_recv2();
+    PC98_RDY_PORT &= ~(1<<PC98_RDY_BIT);
+    if (code == -1) return 0;
+
+if (code == 0x60) {
+    pc98_inhibit_repeat();
+
+/*
+    PC98_RDY_PORT |= (1<<PC98_RDY_BIT);
+    _delay_ms(100);
+    serial_send(0x96);
+    PC98_RDY_PORT &= ~(1<<PC98_RDY_BIT);
+*/
+
+    return 0;
+}
+
+    print_hex8(code); print(" ");
+
+    if (code&0x80) {
+        // break code
+        if (matrix_is_on(ROW(code), COL(code))) {
+            matrix[ROW(code)] &= ~(1<<COL(code));
+            is_modified = true;
+        }
+    } else {
+        // make code
+        if (!matrix_is_on(ROW(code), COL(code))) {
+            matrix[ROW(code)] |=  (1<<COL(code));
+            is_modified = true;
+        }
+    }
+    return code;
+}
+
+bool matrix_is_modified(void)
+{
+    return is_modified;
+}
+
+inline
+bool matrix_has_ghost(void)
+{
+    return false;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & (1<<col));
+}
+
+inline
+uint8_t matrix_get_row(uint8_t row)
+{
+    return matrix[row];
+}
+
+void matrix_print(void)
+{
+    print("\nr/c 01234567\n");
+    for (uint8_t row = 0; row < matrix_rows(); row++) {
+        phex(row); print(": ");
+        pbin_reverse(matrix_get_row(row));
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += bitpop(matrix[i]);
+    }
+    return count;
+}