Merge branch 'sun'

10 files changed, 765 insertions, 2 deletions

diff --git a/common/mousekey.h b/common/mousekey.h
index ac26a46c89..d8d7beaaa3 100644
--- a/common/mousekey.h
+++ b/common/mousekey.h
@@ -45,7 +45,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MOUSEKEY_TIME_TO_MAX 20
 #endif
 #ifndef MOUSEKEY_WHEEL_MAX_SPEED
-#define MOUSEKEY_WHEEL_MAX_SPEED 16
+#define MOUSEKEY_WHEEL_MAX_SPEED 8
 #endif
 #ifndef MOUSEKEY_WHEEL_TIME_TO_MAX
 #define MOUSEKEY_WHEEL_TIME_TO_MAX 40
diff --git a/converter/sun_usb/Makefile b/converter/sun_usb/Makefile
new file mode 100644
index 0000000000..4c79a8d278
--- /dev/null
+++ b/converter/sun_usb/Makefile
@@ -0,0 +1,82 @@
+# Target file name (without extension).
+TARGET = sun_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_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/sun_usb/README b/converter/sun_usb/README
new file mode 100644
index 0000000000..7b4f95ca25
--- /dev/null
+++ b/converter/sun_usb/README
@@ -0,0 +1,79 @@
+Sun to USB keyboard protocol converter
+======================================
+Target MCU is ATMega32u4 but other USB capable AVR will also work.
+Supported keyboards: Sun Type 5 Keyboard, CTCSP SHORT TYPE KEYBOARD(CKUB)
+
+CTCSP SHORT TYPE KEYBOARD: http://imgur.com/a/QIv6p
+
+
+
+
+Connector
+---------
+  8Pin mini DIN
+     ___ ___
+    /  |_|  \
+   / 8  7  6 \
+  | 5    4  3 |
+   \_ 2   1 _/
+     \_____/  
+   (receptacle)
+
+    Wiring:
+    Pin mini DIN        MCU
+    ----------------------------------
+    1   GND             GND
+    2   GND             GND
+    3   5V
+    4   RX/TX(Mouse)
+    5   RX              PD3
+    6   TX              PD2
+    7   GND             GND
+    8   5V              VCC
+
+
+Protocol
+--------
+Singnal: Asynchronous, Negative logic, 1200baud, No Flow control
+Frame format: 1-Start bit, 8-Data bits, No-Parity, 1-Stop bit
+
+    AVR USART engine expects positive logic while Sun keyboard signal is negative.
+    To use AVR UART engine you need exteral inverter in front of RX and TX pin.
+    Otherwise you can software serial routine to communicate the keyboard.
+
+This converter uses software method, you doesn't need any inverter part.
+
+
+Commands From System To Keyboard
+    0x01 Reset
+            Keyboard responds with following byte sequence:
+            Success: 0xFF 0x04 0x7F
+            Fail:    0x7E 0x01 0x7F
+    0x02 Bell On
+    0x03 Bell Off
+    0x0A Click On
+    0x0B Click Off
+    0x0E LED
+            followed by LED status byte:
+            bit: 3       2       1       0
+            LED: CapsLk  ScrLk   Compose NumLk
+    0x0F Layout
+            Keyboard responds with 'Layout Response' 0xFE 0xXX
+
+Commands From Keyboard To System
+    0x7F Idle
+            means no keys pressed.
+    0xFE Layout Response
+    0xFF Reset Response(followed by 0x04)
+     
+Reference
+    http://kentie.net/article/sunkbd/page2.htm
+    http://kentie.net/article/sunkbd/KBD.pdf
+
+
+Build Firmware
+--------------
+Just use 'make'
+    $ cd sun_usb
+    $ make
+Then, load the binary to MCU with your favorite programmer.
diff --git a/converter/sun_usb/config.h b/converter/sun_usb/config.h
new file mode 100644
index 0000000000..66961d9330
--- /dev/null
+++ b/converter/sun_usb/config.h
@@ -0,0 +1,67 @@
+/*
+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      0x3333
+#define DEVICE_VER      0x0100
+#define MANUFACTURER    t.m.k.
+#define PRODUCT         Sun keyboard converter
+#define DESCRIPTION     converts Sun keyboard protocol into USB
+
+
+/* matrix size */
+#define MATRIX_ROWS 16
+#define MATRIX_COLS 8
+
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LALT) | MOD_BIT(KC_RALT)) || \
+    keyboard_report->mods == (MOD_BIT(KC_LGUI) | MOD_BIT(KC_RGUI)) || \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+
+/* Serial(USART) configuration
+ *     asynchronous, negative logic, 1200baud, no flow control
+ *     1-start bit, 8-data bit, non parity, 1-stop bit
+ */
+#define SERIAL_NEGATIVE_LOGIC
+#define SERIAL_BAUD 1200
+#define SERIAL_RXD_DDR  DDRD
+#define SERIAL_RXD_PORT PORTD
+#define SERIAL_RXD_PIN  PIND
+#define SERIAL_RXD_BIT  2
+#define SERIAL_RXD_VECT INT2_vect
+#define SERIAL_RXD_INIT()  do { \
+    /* pin configuration: input with pull-up */ \
+    SERIAL_RXD_DDR &= ~(1<<SERIAL_RXD_BIT);     \
+    SERIAL_RXD_PORT |= (1<<SERIAL_RXD_BIT);     \
+    /* enable interrupt: INT2(rising edge) */   \
+    EICRA |= ((1<<ISC21)|(1<<ISC20));           \
+    EIMSK |= (1<<INT2);                         \
+} while (0)
+#define SERIAL_RXD_INT_ENTER()
+#define SERIAL_RXD_INT_EXIT() do {  \
+    /* clear interrupt  flag */     \
+    EIFR = (1<<INTF2);              \
+} while (0)
+
+#endif
diff --git a/converter/sun_usb/keymap.c b/converter/sun_usb/keymap.c
new file mode 100644
index 0000000000..048a863caf
--- /dev/null
+++ b/converter/sun_usb/keymap.c
@@ -0,0 +1,192 @@
+/*
+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 "util.h"
+#include "keymap.h"
+
+
+
+
+/* Sun type 5 keyboard
+,-------.  ,---,  ,---------------. ,---------------. ,---------------.   ,-----------. ,---------------.
+|   76  |  |   |  | 05| 06| 08| 0A| | 0C| 0E| 10| 11| | 12| 07| 09| 0B|   | 16| 17| 15| | 2D| 02| 04| 30|
+`-------'  `---'  `---------------' `---------------' `---------------'   `-----------' `---------------'
+,-------.  ,-----------------------------------------------------------.  ,-----------. ,---------------.
+| 01| 03|  | 1D| 1E| 1F| 20| 21| 22| 23| 24| 25| 26| 27| 28| 29| 58| 2A|  | 2C| 34| 60| | 62| 2E| 2F| 47|
+|-------|  |-----------------------------------------------------------|  |------------ |---------------|
+| 19| 1A|  |  35 | 36| 37| 38| 39| 3A| 3B| 3C| 3D| 3E| 3F| 40| 41| 2B  |  | 42| 4A| 7B| | 44| 45| 46|   |
+|-------|  |-----------------------------------------------------------|  `-----------' |-----------| 7D|
+| 31| 33|  |  4C  | 4D| 4E| 4F| 50| 51| 52| 53| 54| 55| 56| 57|   59   |                | 5B| 5C| 5D|   |
+|-------|  |-----------------------------------------------------------|      ,---.     |-----------|---|
+| 48| 49|  |   63   | 64| 65| 66| 67| 68| 69| 6A| 6B| 6C| 6D|    6E    |      | 14|     | 70| 71| 72|   |
+|-------|  |-----------------------------------------------------------|  .-----------. |-----------| 5A|
+| 5F| 61|  | 77 | 13| 78 |*73 |       79         |*74 |*75| 7A | 43| 0D|  | 18| 1B| 1C| |   5E  | 32|   |
+`-------'  `-----------------------------------------------------------'  `-----------' `---------------'
+*/
+#define KEYMAP( \
+      K76,        K05,K06,K08,K0A,    K0C,K0E,K10,K11,    K12,K07,K09,K0B,  K16,K17,K15,  K2D,K02,K04,K30, \
+    K01,K03,  K1D,K1E,K1F,K20,K21,K22,K23,K24,K25,K26,K27,K28,K29,K58,K2A,  K2C,K34,K60,  K62,K2E,K2F,K47, \
+    K19,K1A,  K35, K36,K37,K38,K39,K3A,K3B,K3C,K3D,K3E,K3F,K40,K41,   K2B,  K42,K4A,K7B,  K44,K45,K46,K7D, \
+    K31,K33,  K4C,  K4D,K4E,K4F,K50,K51,K52,K53,K54,K55,K56,K57,      K59,                K5B,K5C,K5D,     \
+    K48,K49,  K63,   K64,K65,K66,K67,K68,K69,K6A,K6B,K6C,K6D,         K6E,      K14,      K70,K71,K72,K5A, \
+    K5F,K61,  K77,K13, K78, K73,        K79,      K74, K75, K7A, K43, K0D,  K18,K1B,K1C,  K5E,    K32      \
+) { \
+    { KC_NO,    KC_##K01, KC_##K02, KC_##K03, KC_##K04, KC_##K05, KC_##K06, KC_##K07 }, \
+    { KC_##K08, KC_##K09, KC_##K0A, KC_##K0B, KC_##K0C, KC_##K0D, KC_##K0E, KC_NO,   }, \
+    { KC_##K10, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16, KC_##K17 }, \
+    { KC_##K18, KC_##K19, KC_##K1A, KC_##K1B, KC_##K1C, KC_##K1D, KC_##K1E, KC_##K1F }, \
+    { 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_##K40, KC_##K41, KC_##K42, KC_##K43, KC_##K44, KC_##K45, KC_##K46, KC_##K47 }, \
+    { KC_##K48, KC_##K49, KC_##K4A, KC_NO,    KC_##K4C, KC_##K4D, KC_##K4E, KC_##K4F }, \
+    { KC_##K50, KC_##K51, KC_##K52, KC_##K53, KC_##K54, KC_##K55, KC_##K56, KC_##K57 }, \
+    { KC_##K58, KC_##K59, KC_##K5A, KC_##K5B, KC_##K5C, KC_##K5D, KC_##K5E, KC_##K5F }, \
+    { 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_##K6C, KC_##K6D, KC_##K6E, KC_NO    }, \
+    { KC_##K70, KC_##K71, KC_##K72, KC_##K73, KC_##K74, KC_##K75, KC_##K76, KC_##K77 }, \
+    { KC_##K78, KC_##K79, KC_##K7A, KC_##K7B, KC_NO,    KC_##K7D, KC_NO,    KC_NO    }  \
+}
+
+/* CTCSP SHORT TYPE KEYBOARD */
+#define SHORT_TYPE( \
+    K01, K05,K06,K08,K0A,K0C,K0E, K61,K49,K33, K30, K2C,K34,K60, \
+         K10,K11,K12,K07,K09,K0B,                   K42,K4A,K7B, \
+    K1D,K1E,K1F,K20,K21,K22,K23,K24,K25,K26,K27,K28,K29,K58,K2A, \
+    K35, K36,K37,K38,K39,K3A,K3B,K3C,K3D,K3E,K3F,K40,K41,   K2B, \
+    K4C,  K4D,K4E,K4F,K50,K51,K52,K53,K54,K55,K56,K57,      K59, \
+    K63,   K64,K65,K66,K67,K68,K69,K6A,K6B,K6C,K6D, K0D,K14,K6E, \
+    K77,K13, K78,             K79,      K7A,K43,K62,K18,K1B,K1C  \
+) KEYMAP( \
+         HELP,           K05,K06,K08,K0A,    K0C,K0E,K10,K11,    K12,K07,K09,K0B,  PSCR,SLCK,PAUS,  MUTE,VOLD,VOLU,PWR,  \
+    K01,    AGAIN,   K1D,K1E,K1F,K20,K21,K22,K23,K24,K25,K26,K27,K28,K29,K58,K2A,  K2C, K34, K60,   K62, PSLS,PAST,PMNS, \
+    MENU,   UNDO,    K35, K36,K37,K38,K39,K3A,K3B,K3C,K3D,K3E,K3F,K40,K41,   K2B,  K42, K4A, K7B,   P7,  P8, P9,  PPLS,  \
+    SELECT, COPY,    K4C,  K4D,K4E,K4F,K50,K51,K52,K53,K54,K55,K56,K57,      K59,                   P4,  P5, P6,         \
+    EXECUTE,PASTE,   K63,   K64,K65,K66,K67,K68,K69,K6A,K6B,K6C,K6D,         K6E,       K14,        P1,  P2, P3,  PENT,  \
+    FIND,   CUT,     K77,K13, K78, HENK,       K79,      MHEN, KANA, K7A,K43,K0D,  K18, K1B, K1C,   P0,      PDOT        \
+)
+
+
+// Assign Fn key(0-7) to a layer to which switch with the Fn key pressed.
+static const uint8_t PROGMEM fn_layer[] = {
+    2,              // Fn0
+    3,              // Fn1
+    4,              // 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[] = {
+    KC_NO,          // Fn0
+    KC_SCLN,        // Fn1
+    KC_SLSH,        // Fn2
+    KC_NO,          // Fn3
+    KC_NO,          // Fn4
+    KC_NO,          // Fn5
+    KC_NO,          // Fn6
+    KC_NO           // Fn7
+};
+
+
+static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+/*
+    KEYMAP(
+         HELP,       F1, F2, F3, F4,         F5, F6, F7, F8,         F9, F10,F11,F12,   PSCR,SLCK,PAUS,  MUTE,VOLD,VOLU,PWR,
+    STOP,   AGAIN,   ESC,1,  2,  3,  4,  5,  6,  7,  8,  9,  0,   MINS,EQL, BSLS,GRV,   INS, HOME,PGUP,  NLCK,PSLS,PAST,PMNS,
+    MENU,   UNDO,    TAB, Q,  W,  E,  R,  T,  Y,  U,  I,  O,  P,   LBRC,RBRC,    BSPC,  DEL, END, PGDN,  P7,  P8, P9,  PPLS,
+    SELECT, COPY,    LCTL, A,  S,  D,  F,  G,  H,  J,  K,  L,  SCLN,QUOT,        ENT,                    P4,  P5, P6,
+    EXECUTE,PASTE,   LSFT,  Z,  X,  C,  V,  B,  N,  M,  COMM,DOT,SLSH,           RSFT,       UP,         P1,  P2, P3,  PENT,
+    FIND,   CUT,     CAPS, LALT, LGUI,HENK,  SPC,            MHEN,KANA,RGUI,APP, RALT,  LEFT,DOWN,RGHT,  P0,      PDOT
+    ),
+*/
+    // 0: default
+    SHORT_TYPE(
+        STOP, F1,F2,F3,F4, F5, F6,   CUT,PASTE,COPY,PWR,    INS, HOME,PGUP,
+              F7,F8,F9,F10,F11,F12,                         DEL, END, PGDN,
+        ESC, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSLS,GRV,
+        TAB,  Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,    BSPC,
+        LCTL,  A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,        ENT,
+        LSFT,   Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,  RALT,UP,  RSFT,
+        CAPS,LALT,LGUI,            SPC,              RGUI,APP, NLCK,LEFT,DOWN,RGHT
+    ),
+    // 1: with layer keys
+    SHORT_TYPE(
+        ESC,  F1,F2,F3,F4, F5, F6,   CUT,PASTE,COPY,PWR,    INS, HOME,PGUP,
+              F7,F8,F9,F10,F11,F12,                         DEL, END, PGDN,
+        ESC, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSLS,GRV,
+        TAB,  Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,    BSPC,
+        LCTL,  A,   S,   D,   F,   G,   H,   J,   K,   L,   FN1, QUOT,        ENT,
+        LSFT,   Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, FN2,   RSFT,UP,  FN0,
+        CAPS,LALT,LGUI,            SPC,              RGUI,RALT,FN0, LEFT,DOWN,RGHT
+    ),
+    // 2: HHKB
+    SHORT_TYPE(
+        ESC,  F1,F2,F3,F4, F5, F6,   CUT,PASTE,COPY,PWR,    INS, HOME,PGUP,
+              F7,F8,F9,F10,F11,F12,                         DEL, END, PGDN,
+        GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL,
+        CAPS, NO,  NO,  NO,  NO,  NO,  NO,  NO,  PSCR,SLCK,PAUS,UP,  NO,      BSPC,
+        LCTL,  VOLD,VOLU,MUTE,NO,  NO,  NO,  NO,  HOME,PGUP,LEFT,RGHT,        ENT,
+        LSFT,   Z,   X,   C,   V,   B,   NO,  NO,  END, PGDN,DOWN,  RSFT,PGUP,FN0,
+        CAPS,LALT,LGUI,            SPC,              RGUI,RALT,FN0, HOME,PGDN,END
+    ),
+    // 3: Mousekey
+    SHORT_TYPE(
+        ESC,  F1,F2,F3,F4, F5, F6,   CUT,PASTE,COPY,PWR,    INS, HOME,PGUP,
+              F7,F8,F9,F10,F11,F12,                         DEL, END, PGDN,
+        GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL,
+        CAPS, NO,  NO,  NO,  NO,  NO,  WH_L,WH_D,WH_U,WH_R,NO,  NO,  NO,      BSPC,
+        LCTL,  NO,  ACL0,ACL1,ACL2,NO,  MS_L,MS_D,MS_U,MS_R,FN1, NO,          ENT,
+        LSFT,   NO,  NO,  NO,  NO,  BTN3,BTN2,BTN1,NO,  NO,  NO,    RSFT,UP,  NO,
+        CAPS,LALT,LGUI,            BTN1,             RGUI,RALT,NO,  LEFT,DOWN,RGHT
+    ),
+    // 4: Cursor
+    SHORT_TYPE(
+        ESC,  F1,F2,F3,F4, F5, F6,   CUT,PASTE,COPY,PWR,    INS, HOME,PGUP,
+              F7,F8,F9,F10,F11,F12,                         DEL, END, PGDN,
+        GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL,
+        CAPS, NO,  NO,  NO,  NO,  NO,  HOME,PGDN,PGUP,END, NO,  NO,  NO,      BSPC,
+        LCTL,  NO,  NO,  NO,  NO,  NO,  LEFT,DOWN,UP,  RGHT,NO,  NO,          ENT,
+        LSFT,   NO,  NO,  NO,  NO,  NO,  HOME,PGDN,PGUP,END, FN2,   RSFT,UP,  NO,
+        CAPS,LALT,LGUI,            BTN1,             RGUI,RALT,NO,  LEFT,DOWN,RGHT
+    ),
+};
+
+
+uint8_t keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t col)
+{
+    return pgm_read_byte(&keymaps[(layer)][(row)][(col)]);
+}
+
+uint8_t keymap_fn_layer(uint8_t index)
+{
+    return pgm_read_byte(&fn_layer[index]);
+}
+
+uint8_t keymap_fn_keycode(uint8_t index)
+{
+    return pgm_read_byte(&fn_keycode[index]);
+}
diff --git a/converter/sun_usb/led.c b/converter/sun_usb/led.c
new file mode 100644
index 0000000000..5490ec0c62
--- /dev/null
+++ b/converter/sun_usb/led.c
@@ -0,0 +1,25 @@
+/*
+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 "led.h"
+
+
+void led_set(uint8_t usb_led)
+{
+    // not supported now
+}
diff --git a/converter/sun_usb/matrix.c b/converter/sun_usb/matrix.c
new file mode 100644
index 0000000000..717c131e62
--- /dev/null
+++ b/converter/sun_usb/matrix.c
@@ -0,0 +1,159 @@
+/*
+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;
+}
+
+void matrix_init(void)
+{
+    print_enable = true;
+    debug_enable = true;
+
+    serial_init();
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
+
+    return;
+}
+
+uint8_t matrix_scan(void)
+{
+    is_modified = false;
+
+    uint8_t code;
+    code = serial_recv();
+    if (!code) return 0;
+
+    debug_hex(code); debug(" ");
+
+    switch (code) {
+        case 0x7E:  // reset fail
+        case 0xFE:  // layout
+        case 0xFF:  // reset success
+            _delay_ms(500);
+            // ignore response byte
+            debug("(response ignored:");
+            while ((code = serial_recv())) { debug(" "); debug_hex(code); }
+            debug(") ");
+            // FALL THROUGH
+        case 0x7F:
+            // all keys up
+            for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
+            return 0;
+    }
+
+    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;
+}
diff --git a/protocol/serial.h b/protocol/serial.h
new file mode 100644
index 0000000000..93b9ee9225
--- /dev/null
+++ b/protocol/serial.h
@@ -0,0 +1,45 @@
+/*
+Copyright 2012 Jun WAKO <wakojun@gmail.com>
+
+This software is licensed with a Modified BSD License.
+All of this is supposed to be Free Software, Open Source, DFSG-free,
+GPL-compatible, and OK to use in both free and proprietary applications.
+Additions and corrections to this file are welcome.
+
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in
+  the documentation and/or other materials provided with the
+  distribution.
+
+* Neither the name of the copyright holders nor the names of
+  contributors may be used to endorse or promote products derived
+  from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef SERIAL_H
+#define SERIAL_H
+
+/* host role */
+void serial_init(void);
+uint8_t serial_recv(void);
+
+#endif
diff --git a/protocol/serial_soft.c b/protocol/serial_soft.c
new file mode 100644
index 0000000000..b7d06b644e
--- /dev/null
+++ b/protocol/serial_soft.c
@@ -0,0 +1,114 @@
+/*
+Copyright 2012 Jun WAKO <wakojun@gmail.com>
+
+This software is licensed with a Modified BSD License.
+All of this is supposed to be Free Software, Open Source, DFSG-free,
+GPL-compatible, and OK to use in both free and proprietary applications.
+Additions and corrections to this file are welcome.
+
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in
+  the documentation and/or other materials provided with the
+  distribution.
+
+* Neither the name of the copyright holders nor the names of
+  contributors may be used to endorse or promote products derived
+  from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <stdbool.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include "serial.h"
+
+/*
+ *  Stupid Inefficient Busy-wait Software Serial
+ *  is still useful for negative logic signal like Sun protocol not supported by hardware USART.
+ */
+
+#define WAIT_US     (1000000/SERIAL_BAUD)
+
+void serial_init(void)
+{
+    SERIAL_RXD_INIT();
+}
+
+// RX ring buffer
+#define RBUF_SIZE   8
+static uint8_t rbuf[RBUF_SIZE];
+static uint8_t rbuf_head = 0;
+static uint8_t rbuf_tail = 0;
+
+uint8_t serial_recv(void)
+{
+    uint8_t data = 0;
+    if (rbuf_head == rbuf_tail) {
+        return 0;
+    }
+
+    data = rbuf[rbuf_tail];
+    rbuf_tail = (rbuf_tail + 1) % RBUF_SIZE;
+    return data;
+}
+
+//ISR(INT2_vect)
+ISR(SERIAL_RXD_VECT)
+{
+    SERIAL_RXD_INT_ENTER()
+
+    uint8_t data = 0;
+#ifdef SERIAL_BIT_ORDER_MSB
+    uint8_t pos = 0x80;
+#else
+    uint8_t pos = 0x01;
+#endif
+    // to center of start bit
+    _delay_us(WAIT_US/2);
+    do {
+        // to center of next bit
+        _delay_us(WAIT_US);
+
+        if (SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT)) {
+            data |= pos;
+        }
+#ifdef SERIAL_BIT_ORDER_MSB
+        pos >>= 1;
+#else
+        pos <<= 1;
+#endif
+    } while (pos);
+    // to center of stop bit
+    _delay_us(WAIT_US);
+
+#ifdef SERIAL_NEGATIVE_LOGIC
+    data = ~data;
+#endif
+
+    uint8_t next = (rbuf_head + 1) % RBUF_SIZE;
+    if (next != rbuf_tail) {
+        rbuf[rbuf_head] = data;
+        rbuf_head = next;
+    }
+
+    SERIAL_RXD_INT_EXIT();
+}
diff --git a/rules.mk b/rules.mk
index f53fe912a7..2e4fce518f 100644
--- a/rules.mk
+++ b/rules.mk
@@ -252,7 +252,7 @@ EXTMEMOPTS =
 # 	(.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12'
 #
 LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
-LDFLAGS += -Wl,--relax
+#LDFLAGS += -Wl,--relax
 LDFLAGS += -Wl,--gc-sections
 LDFLAGS += $(EXTMEMOPTS)
 LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))