Merge branch 'overlays'

51 files changed, 2868 insertions, 955 deletions

diff --git a/README.md b/README.md
index b9238922bd..e9dad457d8 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Source code is available here: <http://github.com/tmk/tmk_keyboard>
 
 Features
 --------
-* Multi-layer Keymap  - Multiple keyboard layouts with layer switching.
+* Multi-layer Keymap  - Multiple keyboard layouts with layer switching
 * Mouse key           - Mouse control with keyboard
 * System Control Key  - Power Down, Sleep, Wake Up and USB Remote Wake up
 * Media Control Key   - Volume Down/Up, Mute, Next/Prev track, Play, Stop and etc
@@ -22,24 +22,27 @@ Features
 
 Projects
 --------
+You can find some keyboard specific projects under `converter` and `keyboard` directory.
+
 ### converter
-* ps2_usb       - [PS/2 keyboard to USB][GH_ps2]
-* adb_usb       - [ADB keyboard to USB][GH_adb]
-* m0110_usb     - [Machintosh 128K/512K/Plus keyboard to USB][GH_m0110]
-* terminal_usb  - [IBM Model M terminal keyboard(PS/2 scancode set3) to USB][GH_terminal]
-* news_usb      - [Sony NEWS keyboard to USB][GH_news]
-* x68k_usb      - [Sharp X68000 keyboard to USB][GH_x68k]
-* sun_usb       - Sun to USB(type4, 5 and 3?)
-* usb_usb       - USB to USB(experimental)
+* [ps2_usb](converter/ps2_usb/)             - [PS/2 keyboard to USB][GH_ps2]
+* [adb_usb](converter/adb_usb/)             - [ADB keyboard to USB][GH_adb]
+* [m0110_usb](converter/m0110_usb)          - [Machintosh 128K/512K/Plus keyboard to USB][GH_m0110]
+* [terminal_usb](converter/terminal_usb/)   - [IBM Model M terminal keyboard(PS/2 scancode set3) to USB][GH_terminal]
+* [news_usb](converter/news_usb/)           - [Sony NEWS keyboard to USB][GH_news]
+* [x68k_usb](converter/x68k_usb/)           - [Sharp X68000 keyboard to USB][GH_x68k]
+* [sun_usb](converter/sun_usb/)             - [Sun] to USB(type4, 5 and 3?)
+* [pc98_usb](converter/pc98_usb/)           - [PC98] to USB
+* [usb_usb](converter/usb_usb/)             - USB to USB(experimental)
 
 ### keyboard
-* hhkb          - [Happy Hacking Keyboard professional][GH_hhkb]
-* macway        - [Compact keyboard mod][GH_macway]
-* hbkb          - [Happy Buckling sprint keyboard(IBM Model M mod)][GH_hbkb]
-* IIgs_Standard - Apple IIGS keyboard mod(by JeffreySung)
-* hid_liber     - [HID liberation controller][HID_liber](by alaricljs)
-* phantom       - [Phantom keyboard][PHANTOM] (by Tranquilite)
-* gh60          - [GH60 keyboard][GH60]
+* [hhkb](keyboard/hhkb/)                    - [Happy Hacking Keyboard professional][GH_hhkb]
+* [macway](keyboard/macway/)                - [Compact keyboard mod][GH_macway]
+* [hbkb](keyboard/hbkb/)                    - [Happy Buckling sprint keyboard(IBM Model M mod)][GH_hbkb]
+* [IIgs_Standard](keyboard/IIgs/)           - Apple [IIGS] keyboard mod(by JeffreySung)
+* [hid_liber](keyboard/hid_liber/)          - [HID liberation controller][HID_liber](by alaricljs)
+* [phantom](keyboard/phantom/)              - [Phantom keyboard][PHANTOM] (by Tranquilite)
+* [gh60](keyboard/gh60/)                    - [GH60 keyboard][GH60]
 
 [GH_macway]:    http://geekhack.org/showwiki.php?title=Island:11930
 [GH_hhkb]:      http://geekhack.org/showwiki.php?title=Island:12047
@@ -54,6 +57,9 @@ Projects
 [HID_liber]:    http://deskthority.net/wiki/HID_Liberation_Device_-_DIY_Instructions
 [PHANTOM]:      http://geekhack.org/index.php?topic=26742
 [GH60]:         http://geekhack.org/index.php?topic=34959
+[PC98]:         http://en.wikipedia.org/wiki/NEC_PC-9801
+[Sun]:          http://en.wikipedia.org/wiki/Sun-3
+[IIGS]:         http://en.wikipedia.org/wiki/Apple_IIGS
 
 
 
@@ -203,334 +209,10 @@ Config.h Options
     #define IS_COMMAND() (keyboard_report->mods == (MOD_BIT(KB_LSHIFT) | MOD_BIT(KB_RSHIFT))) 
 
 
-Keymap
-------
-Many of existent projects offer keymap framework to define your own keymap easily. The following will explain how you can define keymap using this framework.
- Instead, you can also implement your own `keymap_get_action()` to return action code for each key if you want.
-
-This is keymap example for [HHKB](http://en.wikipedia.org/wiki/Happy_Hacking_Keyboard) keyboard. Keymap is defined in `keymaps[]` array.
-
-    static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-        /* Layer 0: Default Layer
-         * ,-----------------------------------------------------------.
-         * |Esc|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|  \|  `|
-         * |-----------------------------------------------------------|
-         * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|Backs|
-         * |-----------------------------------------------------------|
-         * |Contro|  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Enter   |
-         * |-----------------------------------------------------------|
-         * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift |Fn1|
-         * `-----------------------------------------------------------'
-         *       |Gui|Alt  |Space                  |Alt  |Fn2|
-         *       `-------------------------------------------'
-         */
-        KEYMAP(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,   FN2, QUOT,ENT, \
-               LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,RSFT,FN1, \
-                    LGUI,LALT,          SPC,                RALT,FN3),
-
-        /* Layer 1: HHKB mode (HHKB Fn)
-         * ,-----------------------------------------------------------.
-         * |Pwr| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del|
-         * |-----------------------------------------------------------|
-         * |Caps |   |   |   |   |   |   |   |Psc|Slk|Pus|Up |   |Backs|
-         * |-----------------------------------------------------------|
-         * |Contro|VoD|VoU|Mut|   |   |  *|  /|Hom|PgU|Lef|Rig|Enter   |
-         * |-----------------------------------------------------------|
-         * |Shift   |   |   |   |   |   |  +|  -|End|PgD|Dow|Shift |Fn1|
-         * `-----------------------------------------------------------'
-         *      |Gui |Alt  |Space                  |Alt  |Gui|
-         *      `--------------------------------------------'
-         */ 
-        KEYMAP(PWR, 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,  PAST,PSLS,HOME,PGUP,LEFT,RGHT,ENT, \
-               LSFT,NO,  NO,  NO,  NO,  NO,  PPLS,PMNS,END, PGDN,DOWN,RSFT,FN0, \
-                    LGUI,LALT,          SPC,                RALT,RGUI),
-        /* Layer 2: Mouse mode (Semicolon)
-         * ,-----------------------------------------------------------.
-         * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del|
-         * |-----------------------------------------------------------|
-         * |Tab  |   |   |   |   |   |MwL|MwD|MwU|MwR|   |   |   |Backs|
-         * |-----------------------------------------------------------|
-         * |Contro|   |   |   |   |   |McL|McD|McU|McR|Fn0|   |Return  |
-         * |-----------------------------------------------------------|
-         * |Shift   |   |   |   |   |Mb3|Mb2|Mb1|Mb4|Mb5|   |Shift |   |
-         * `-----------------------------------------------------------'
-         *      |Gui |Alt  |Mb1                    |Alt  |Fn0|
-         *      `--------------------------------------------'
-         * Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel 
-         */
-        KEYMAP(ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL, \
-               TAB, 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,FN0, QUOT,ENT, \
-               LSFT,NO,  NO,  NO,  NO,  BTN3,BTN2,BTN1,BTN4,BTN5,SLSH,RSFT,NO, \
-                    LGUI,LALT,          BTN1,               RALT,FN0),
-    };
-
-    static const uint16_t PROGMEM fn_actions[] = {
-        ACTION_LAYER_DEFAULT,                           // FN0
-        ACTION_LAYER_SET(1),                            // FN1
-        ACTION_LAYER_SET_TAP_KEY(2, KC_SCLN),           // FN2
-        ACTION_LAYER_BIT_TOGGLE(2),                     // FN3
-    };
-
-
-
-### 1. Keycode
-See `common/keycode.h`. Keycode is 8bit internal code to inidicate action performed on key in keymap. Keycode has `KC_` prefixed symbol respectively. Most of keycodes like `KC_A` have simple action register key on press and unregister on release, on the other some of keycodes has some special actions like Fn keys, Media contorl keys, System control keys and Mouse keys.
-
- ***In `KEYMAP` definition you need to omit prefix part `KC_` of keycode to keep keymap compact.*** For example, just use `A` instead you place `KC_A` in `KEYMAP`. Some keycodes has 4-letter short name in addition to descriptive name, you'll prefer short one in `KEYMAP`.
-
-#### 1.0 Other key
-- `KC_NO` for no aciton
-- `KC_TRNS` for transparent layer
-
-#### 1.1 Normal key
-- `KC_A` to `KC_Z`, `KC_1` to `KC_0` for alpha numeric key
-- `KC_MINS`, `KC_EQL`, `KC_GRV`, `KC_RBRC`, `KC_LBRC`, `KC_COMM`, `KC_DOT`, `KC_BSLS`, `KC_SLSH`, `KC_SCLN`, `KC_QUOT`
-- `KC_ESC`, `KC_TAB`, `KC_SPC`, `KC_BSPC`, `KC_ENT`, `KC_DEL`, `KC_INS`
-- `KC_UP`, `KC_DOWN`, `KC_RGHT`, `KC_LEFT`, `KC_PGUP`, `KC_PGDN`, `KC_HOME`, `KC_END`
-- `KC_CAPS`, `KC_NLCK`, `KC_SLCK`, `KC_PSCR`, `KC_PAUS`, `KC_APP`, `KC_F1` to `KC_F24`
-- `KC_P1` to `KC_P0`, `KC_PDOT`, `KC_PCMM`, `KC_PSLS`, `KC_PAST`, `KC_PMNS`, `KC_PPLS`, `KC_PEQL`, `KC_PENT` for keypad.
-
-#### 1.2 Modifier
-There are 8 modifiers which has discrimination between left and right. 
-
-- `KC_LCTL` and `KC_RCTL` for Control
-- `KC_LSFT` and `KC_RSFT` for Shift
-- `KC_LALT` and `KC_RALT` for Alt
-- `KC_LGUI` and `KC_RGUI` for Windows key or Command key in Mac
-
-#### 1.3 Fn key
-`KC_FNnn` are `Fn` keys which not given any action at the beginning unlike most of keycodes has its own action. To use these keys in `KEYMAP` you need to assign action you want at first. Action of `Fn` is defined in `fn_actions[]` and index of the array is identical with number part of `KC_FNnn`. Thus `KC_FN0` designates action defined in first element of the array. ***32 `Fn` keys can be defined at most.***
-
-#### 1.4 Mousekey
-- `KC_MS_U`, `KC_MS_D`, `KC_MS_L`, `KC_MS_R` for mouse cursor
-- `KC_WH_U`, `KC_WH_D`, `KC_WH_L`, `KC_WH_R` for mouse wheel
-- `KC_BTN1`, `KC_BTN2`, `KC_BTN3`, `KC_BTN4`, `KC_BTN5` for mouse buttons
-
-#### 1.5 System & Media key
-- `KC_PWR`, `KC_SLEP`, `KC_WAKE` for Power, Sleep, Wake
-- `KC_MUTE`, `KC_VOLU`, `KC_VOLD` for audio volume control
-- `KC_MNXT`, `KC_MPRV`, `KC_MSTP`, `KC_MPLY`, `KC_MSEL` for media control
-- `KC_MAIL`, `KC_CALC`, `KC_MYCM` for application launch
-- `KC_WSCH`, `KC_WHOM`, `KC_WBAK`, `KC_WFWD`, `KC_WSTP`, `KC_WREF`, `KC_WFAV` for web browser operation
-
-#### Keycode Table
- See [keycode table](doc/keycode.txt) in `doc/keycode.txt`  or `common/keycode.h` for the detail or other keycodes.
-
- In regard to implementation side most of keycodes are identical with [HID usage] sent to host for real and some virtual keycodes are defined to support special actions.
-[HID usage]: http://www.usb.org/developers/devclass_docs/Hut1_11.pdf
-
-
-
-### 2. Action
-See `common/action.h`. Action is a 16bit code and defines function to perform on events of a key like press, release, hold and tap. You can define various actions to use various action codes.
-
-Most of keys just register 8bit keycode as HID usage(or scan code) to host, but to support other complex features needs 16bit extended action codes internally. But using 16bit action codes in keymap results in double size in memory against keycodes. To avoid this waste 8bit keycodes are used in `KEYMAP` to define instead of action codes. ***Keycodes can be considered as subset of action codes.*** Like `KC_A`(0x04) is equal to a `Key` action(0x0004) that transmit keycode of *'A'*.
-
-#### 2.1 Key action
-Key is simple action that registers keycode on press of key and unregister on release.
-You can define `Key` action on *'A'* key with:
-
-    ACTION_KEY(KC_A)
-
-But you don't need to use this expression directly because you can just put symbol `A` in `KEYMAP` definition.
-
- Say you want to assign a key to `Shift + 1` to get charactor *'!'* or `Alt + Tab` to switch windows.
-
-    ACTION_MOD_KEY(KC_LSHIFT, KC_1)
-    ACTION_MOD_KEY(KC_LALT, KC_TAB)
-
-Or `Alt,Shift + Tab` can be defined.
-
-    ACTION_MODS_KEY((MOD_BIT(KC_LALT) | MOD_BIT(KC_LSHIFT)), KC_TAB)
-
-These actions are comprised of strokes of modifiers and a key. `Macro` action is needed if you want more complex key strokes.
-
-#### 2.2 Layer Actions
-This sets `default layer` into `current layer`. With this action you can return to `default layer`.
-
-    ACTION_LAYER_DEFAULT
-
-`Layer Set` action sets given layer argument to `current layer`. `Layer Set` action can take 0 to 15 as argument.
-
-    ACTION_LAYER_SET(layer)
-    ACTION_LAYER_SET_TOGGLE(layer)
-    ACTION_LAYER_SET_TAP_KEY(layer, key)
-    ACTION_LAYER_SET_TAP_TOGGLE(layer)
-
-`Layer Bit` action XOR given bits with `current layer`. `Layer Bit` action can take 0 to 15 as argument. 
-
-    ACTION_LAYER_BIT(bits)
-    ACTION_LAYER_BIT_TOGGLE(bits)
-    ACTION_LAYER_BIT_TAP_KEY(bits, key)
-    ACTION_LAYER_BIT_TAP_TOGGLE(bits)
-
-These acitons change `default layer`.
-    ACTION_LAYER_SET_DEFAULT(layer)
-    ACTION_LAYER_BIT_DEFAULT(bits)
-
-
-#### 2.3 Macro action
-***NOT FIXED***
-`Macro` action indicates complex key strokes.
- 
-    MACRO( MD(LSHIFT), D(D), END )
-    MACRO( U(D), MU(LSHIFT), END )
-    MACRO( I(255), T(H), T(E), T(L), T(L), W(255), T(O), END )
-
-##### 2.3.1 Normal mode
-- **I()**   change interavl of stroke.
-- **D()**   press key
-- **U()**   release key
-- **T()**   type key(press and release)
-- **W()**   wait
-- **MD()**  modifier down
-- **MU()**  modifier up
-- **END**   end mark
-
-##### 2.3.2 Extended mode
-
-***TODO: sample impl***
-See `keyboard/hhkb/keymap.c` for sample.
-
-
-#### 2.4 Function action
-***NOT FIXED***
-There are two type of action, normal `Function` and tappable `Function`.
-These actions call user defined function with `id`, `opt`, and key event information as arguments.
-
-##### 2.4.1 Function
-To define normal `Function` action in keymap use this.
-
-    ACTION_FUNCTION(id, opt)
-
-##### 2.4.2 Function with tap
-To define tappable `Function` action in keymap use this.
-
-    ACTION_FUNCTION_TAP(id, opt)
-
-##### 2.4.3 Implement user function
-`Function` actions can be defined freely with C by user in callback function:
-
-    void keymap_call_function(keyrecord_t *event, uint8_t id, uint8_t opt)
-
-This C function is called every time key is operated, argument `id` selects action to be performed and `opt` can be used for option. Functon `id` can be 0-255 and `opt` can be 0-15.
-
- `keyrecord_t` is comprised of key event and tap count. `keyevent_t` indicates which and when key is pressed or released. From `tap_count` you can know tap state, 0 means no tap. These information will be used in user function to decide how action of key is performed.
-
-    typedef struct {
-        keyevent_t  event;
-        uint8_t     tap_count;
-    } keyrecord_t;
-
-    typedef struct {
-        key_t    key;
-        bool     pressed;
-        uint16_t time;
-    } keyevent_t;
-
-    typedef struct {
-        uint8_t col;
-        uint8_t row;
-    } key_t;
-
-***TODO: sample impl***
-See `keyboard/hhkb/keymap.c` for sample.
-
-
-
-
-
-### 3. Layer
- Layer is key-action map to assign action to every physical key. You can define multiple layers in keymap and select a layer out of keymap during operation at will.
-
- First layer is indexed by `Layer 0` which usually become **`default layer`** and active in initial state. **`current layer`** is active layer at that time and can be changed with user interaction. You can define **16 layers** at most in default keymap framework.
-
- you can define a layer with placing keycode symbols separated with `comma` in `KEYMAP`, which is formed with resemblance to physical keyboard layout so as you can easily put keycode on place you want to map. ***You can define most of keys with just using keycodes*** except for `Fn` key serving special actions.
-
-
-
-### 4. Layer switching
-You can have some ways to switch layer with these actions.
-There are two kind of layer switch action `Layer Set` and `Layer Bit` and two type of switching behaviour **Momentary** and **Toggle**.
-
-#### 4.1 Momentary switching
-Momentary switching changes layer only while holding Fn key.
-
-##### 4.1.1 Momentary Set
-This `Layer Set` action sets new layer `Layer 1` to `current layer` on key press event.
-
-    ACTION_LAYER_SET(1)
-
-It switches to destination layer immediately when key is pressed, after that actions on keymap of destination layer is perfomed. ***Thus you shall need to place action to come back on destination layer***, or you will be stuck in destination layer without way to get back. To get back to `default layer` you can use this action.
-
-    ACTION_LAYER_DEFAULT
-
-##### 4.1.2 Momentary Bit
-This `Layer Bit` action performs XOR `1` with `current layer` on both press and release event. If you are on `Layer 0` now next layer to switch will be `Layer 1`. To come back to previous layer you need to place same action on destination layer.
-
-    ACTION_LAYER_BIT(1)
-
-#### 4.2 Toggle switching
-Toggle switching changes layer after press then release. You keep being on the layer until you press key to return.
-
-##### 4.2.1 Toggle Set
-This `Layer Set Toggle` action is to set `Layer 1` to `current layer` on release and do none on press.
-
-    ACTION_LAYER_SET_TOGGLE(1)
-
-To get back to `default layer` you can use this action.
-
-    ACTION_LAYER_DEFAULT
-
-##### 4.2.2 Toggle Bit
-This `Layer Bit Toggle` action is to XOR `1` with `current layer` on release and do none on press. If you are on `Layer 2` you'll switch to `Layer 3` on press. To come back to previous layer you need to place same action on destination layer.
-
-    ACTION_LAYER_BIT_TOGGLE(1)
-
-
-#### 4.3 Momentary switching with Tap key
-These actions switch to layer only while holding `Fn` key and register key on tap. **Tap** means to press and release key quickly.
-
-    ACTION_LAYER_SET_TAP_KEY(2, KC_SCLN)
-    ACTION_LAYER_SET_BIT_KEY(2, KC_SCLN)
-
-With these you can place layer switching function on normal alphabet key like `;` without losing its original register function.
-
-#### 4.4 Momentary switching with Tap Toggle
-This changes layer only while holding `Fn` key and toggle layer after several taps. **Tap** means to press and release key quickly.
-
-    ACTION_LAYER_SET_TAP_TOGGLE(layer)
-    ACTION_LAYER_BIT_TAP_TOGGLE(layer)
-
-Number of taps can be defined with `TAPPING_TOGGLE` in `config.h`, `5` by default.
-
-
-
-
-Legacy Keymap
--------------
-This was used in prior version and still works due to legacy support code in `common/keymap.c`. Legacy keymap doesn't support many of features that new keymap offers.
-
-In comparison with new keymap how to define Fn key is different. It uses two arrays `fn_layer[]` and `fn_keycode[]`. The index of arrays corresponds with postfix number of `Fn` key. Array `fn_layer[]` indicates destination layer to switch and `fn_keycode[]` has keycodes to send when tapping `Fn` key.
-
-In following setting example, `Fn0`, `Fn1` and `Fn2` switch layer to 1, 2 and 2 respectively. `Fn2` registers `Space` key when tap while `Fn0` and `Fn1` doesn't send any key.
-
-    static const uint8_t PROGMEM fn_layer[] = {
-        1,              // Fn0
-        2,              // Fn1
-        2,              // Fn2
-    };
+Change your keymap
+------------------
+[keymap.md](doc/keymap.md)
 
-    static const uint8_t PROGMEM fn_keycode[] = {
-        KC_NO,          // Fn0
-        KC_NO,          // Fn1
-        KC_SPC,         // Fn2
-    };
 
 
 
diff --git a/common.mk b/common.mk
index 86518f03fb..5fb76e739b 100644
--- a/common.mk
+++ b/common.mk
@@ -3,6 +3,7 @@ SRC +=	$(COMMON_DIR)/host.c \
 	$(COMMON_DIR)/keyboard.c \
 	$(COMMON_DIR)/action.c \
 	$(COMMON_DIR)/action_macro.c \
+	$(COMMON_DIR)/layer_switch.c \
 	$(COMMON_DIR)/keymap.c \
 	$(COMMON_DIR)/command.c \
 	$(COMMON_DIR)/timer.c \
diff --git a/common/action.c b/common/action.c
index 6528cd46c8..15e125a3ec 100644
--- a/common/action.c
+++ b/common/action.c
@@ -23,15 +23,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "command.h"
 #include "util.h"
 #include "debug.h"
+#include "layer_switch.h"
+#include "action_macro.h"
 #include "action.h"
 
 
-/* default layer indicates base layer */
-uint8_t default_layer = 0;
-/* current layer indicates active layer at this time */
-uint8_t current_layer = 0;
-
-
 static void process_action(keyrecord_t *record);
 static bool process_tapping(keyrecord_t *record);
 static void waiting_buffer_scan_tap(void);
@@ -207,28 +203,18 @@ void action_exec(keyevent_t event)
     }
 }
 
-static action_t get_action(key_t key)
-{
-    action_t action = action_for_key(current_layer, key);
-
-    /* Transparently use default layer */
-    if (action.code == ACTION_TRANSPARENT) {
-        // TODO: layer stacking
-        action = action_for_key(default_layer, key);
-        debug("TRNASPARENT: "); debug_hex16(action.code); debug("\n");
-    }
-    return action;
-}
-
 static void process_action(keyrecord_t *record)
 {
     keyevent_t event = record->event;
-    uint8_t tap_count = record->tap_count;
+    uint8_t tap_count = record->tap.count;
 
     if (IS_NOEVENT(event)) { return; }
 
-    action_t action = get_action(event.key);
-    debug("ACTION: "); debug_action(action); debug("\n");
+    action_t action = layer_switch_get_action(event.key);
+    debug("ACTION: "); debug_action(action);
+    debug(" overlays: "); overlay_debug();
+    debug(" keymaps: "); keymap_debug();
+    debug(" default_layer: "); debug_dec(default_layer); debug("\n");
 
     switch (action.kind.id) {
         /* Key and Mods */
@@ -287,7 +273,7 @@ static void process_action(keyrecord_t *record)
                         } else {
                             if (tap_count == 0) {
                                 debug("MODS_TAP: Oneshot: cancel/del_mods\n");
-                                // cancel oneshot by holding.
+                                // cancel oneshot on hold
                                 oneshot_cancel();
                                 del_mods(mods);
                             }
@@ -309,7 +295,7 @@ static void process_action(keyrecord_t *record)
                                 if (waiting_buffer_has_anykey_pressed()) {
                                     debug("MODS_TAP: Tap: Cancel: add_mods\n");
                                     // ad hoc: set 0 to cancel tap
-                                    record->tap_count = 0;
+                                    record->tap.count = 0;
                                     add_mods(mods);
                                 } else {
                                     debug("MODS_TAP: Tap: register_code\n");
@@ -368,145 +354,316 @@ static void process_action(keyrecord_t *record)
 #endif
             break;
 
-        /* Layer key */
-        case ACT_LAYER:
+        case ACT_KEYMAP:
             switch (action.layer.code) {
-                case LAYER_MOMENTARY:  /* momentary */
-                    if (event.pressed) {
-                        layer_switch(action.layer.val);
-                    }
-                    else {
-                        // NOTE: This is needed by legacy keymap support
-                        layer_switch(default_layer);
-                    }
-                    break;
-                case LAYER_ON_PRESS:
-                    if (event.pressed) {
-                        layer_switch(action.layer.val);
-                    }
-                    break;
-                case LAYER_ON_RELEASE:
-                    if (!event.pressed) {
-                        layer_switch(action.layer.val);
-                    }
-                    break;
-                case LAYER_DEFAULT:  /* default layer */
-                    switch (action.layer.val) {
-                        case DEFAULT_ON_BOTH:
-                            layer_switch(default_layer);
+                /* Keymap clear */
+                case OP_RESET:
+                    switch (action.layer.val & 0x03) {
+                        case 0:
+                            // NOTE: reserved
+                            overlay_clear();
+                            keymap_clear();
                             break;
-                        case DEFAULT_ON_PRESS:
+                        case ON_PRESS:
                             if (event.pressed) {
-                                layer_switch(default_layer);
+                                overlay_clear();
+                                keymap_clear();
                             }
                             break;
-                        case DEFAULT_ON_RELEASE:
+                        case ON_RELEASE:
                             if (!event.pressed) {
-                                layer_switch(default_layer);
+                                overlay_clear();
+                                keymap_clear();
                             }
                             break;
+                        case ON_BOTH:
+                            overlay_clear();
+                            keymap_clear();
+                            break;
+                        /* NOTE: 4-7 rserved */
                     }
                     break;
-                case LAYER_TAP_TOGGLE:  /* switch on hold and toggle on several taps */
+                /* Keymap Reset default layer */
+                case (OP_RESET | ON_PRESS):
+                    if (event.pressed) {
+                        default_layer_set(action.layer.val);
+                    }
+                    break;
+                case (OP_RESET | ON_RELEASE):
+                    if (!event.pressed) {
+                        default_layer_set(action.layer.val);
+                    }
+                    break;
+                case (OP_RESET | ON_BOTH):
+                    default_layer_set(action.layer.val);
+                    break;
+
+                /* Keymap Bit invert */
+                case OP_INV:
+                    /* with tap toggle */
                     if (event.pressed) {
                         if (tap_count < TAPPING_TOGGLE) {
-                            layer_switch(action.layer.val);
+                            debug("KEYMAP_INV: tap toggle(press).\n");
+                            keymap_invert(action.layer.val);
                         }
                     } else {
-                        if (tap_count >= TAPPING_TOGGLE) {
-                            debug("LAYER_PRESSED: tap toggle.\n");
-                            layer_switch(action.layer.val);
+                        if (tap_count <= TAPPING_TOGGLE) {
+                            debug("KEYMAP_INV: tap toggle(release).\n");
+                            keymap_invert(action.layer.val);
                         }
                     }
                     break;
-                case LAYER_CHANGE_DEFAULT:  /* change default layer */
+                case (OP_INV | ON_PRESS):
                     if (event.pressed) {
-                        default_layer = action.layer.val;
-                        layer_switch(default_layer);
+                        keymap_invert(action.layer.val);
+                    }
+                    break;
+                case (OP_INV | ON_RELEASE):
+                    if (!event.pressed) {
+                        keymap_invert(action.layer.val);
                     }
                     break;
-                default:    /* switch layer on hold and key on tap*/
+                case (OP_INV | ON_BOTH):
+                    keymap_invert(action.layer.val);
+                    break;
+
+                /* Keymap Bit on */
+                case OP_ON:
+                    if (event.pressed) {
+                        keymap_on(action.layer.val);
+                    } else {
+                        keymap_off(action.layer.val);
+                    }
+                    break;
+                case (OP_ON | ON_PRESS):
+                    if (event.pressed) {
+                        keymap_on(action.layer.val);
+                    }
+                    break;
+                case (OP_ON | ON_RELEASE):
+                    if (!event.pressed) {
+                        keymap_on(action.layer.val);
+                    }
+                    break;
+                case (OP_ON | ON_BOTH):
+                    keymap_on(action.layer.val);
+                    break;
+
+                /* Keymap Bit off */
+                case OP_OFF:
+                    if (event.pressed) {
+                        keymap_off(action.layer.val);
+                    } else {
+                        keymap_on(action.layer.val);
+                    }
+                    break;
+                case (OP_OFF | ON_PRESS):
+                    if (event.pressed) {
+                        keymap_off(action.layer.val);
+                    }
+                    break;
+                case (OP_OFF | ON_RELEASE):
+                    if (!event.pressed) {
+                        keymap_off(action.layer.val);
+                    }
+                    break;
+                case (OP_OFF | ON_BOTH):
+                    keymap_off(action.layer.val);
+                    break;
+
+                /* Keymap Bit set */
+                case OP_SET:
+                    if (event.pressed) {
+                        keymap_set(action.layer.val);
+                    } else {
+                        keymap_clear();
+                    }
+                    break;
+                case (OP_SET | ON_PRESS):
+                    if (event.pressed) {
+                        keymap_set(action.layer.val);
+                    }
+                    break;
+                case (OP_SET | ON_RELEASE):
+                    if (!event.pressed) {
+                        keymap_set(action.layer.val);
+                    }
+                    break;
+                case (OP_SET | ON_BOTH):
+                    keymap_set(action.layer.val);
+                    break;
+
+                /* Keymap Bit invert with tap key */
+                default:
                     if (event.pressed) {
-                       if (tap_count > 0) {
-                            debug("LAYER_PRESSED: Tap: register_code\n");
+                        if (tap_count > 0) {
+                            debug("KEYMAP_TAP_KEY: Tap: register_code\n");
                             register_code(action.layer.code);
-                       } else {
-                            debug("LAYER_PRESSED: No tap: layer_switch\n");
-                            layer_switch(action.layer.val);
-                       }
+                        } else {
+                            debug("KEYMAP_TAP_KEY: No tap: On on press\n");
+                            keymap_on(action.layer.val);
+                        }
                     } else {
                         if (tap_count > 0) {
-                            debug("LAYER_PRESSED: Tap: unregister_code\n");
+                            debug("KEYMAP_TAP_KEY: Tap: unregister_code\n");
                             unregister_code(action.layer.code);
                         } else {
-                            //debug("LAYER_PRESSED: No tap: NO ACTION\n");
-                            // NOTE: This is needed by legacy keymap support
-                            debug("LAYER_PRESSED: No tap: return to default layer\n");
-                            layer_switch(default_layer);
+                            debug("KEYMAP_TAP_KEY: No tap: Off on release\n");
+                            keymap_off(action.layer.val);
                         }
                     }
                     break;
             }
             break;
-        case ACT_LAYER_BIT:
+
+        case ACT_OVERLAY:
             switch (action.layer.code) {
-                case LAYER_MOMENTARY:  /* momentary */
-                    if (event.pressed) {
-                        layer_switch(current_layer ^ action.layer.val);
+                // Overlay Invert bit4
+                case OP_INV4 | 0:
+                    if (action.layer.val == 0) {
+                        // NOTE: reserved for future use
+                        overlay_clear();
                     } else {
-                        layer_switch(current_layer ^ action.layer.val);
+                        overlay_set(overlay_stat ^ action.layer.val);
                     }
                     break;
-                case LAYER_ON_PRESS:
-                    if (event.pressed) {
-                        layer_switch(current_layer ^ action.layer.val);
+                case OP_INV4 | 1:
+                    if (action.layer.val == 0) {
+                        // on pressed
+                        if (event.pressed) overlay_clear();
+                    } else {
+                        overlay_set(overlay_stat ^ action.layer.val<<4);
                     }
                     break;
-                case LAYER_ON_RELEASE:
-                    if (!event.pressed) {
-                        layer_switch(current_layer ^ action.layer.val);
+                case OP_INV4 | 2:
+                    if (action.layer.val == 0) {
+                        // on released
+                        if (!event.pressed) overlay_clear();
+                    } else {
+                        overlay_set(overlay_stat ^ action.layer.val<<8);
+                    }
+                    break;
+                case OP_INV4 | 3:
+                    if (action.layer.val == 0) {
+                        // on both
+                        overlay_clear();
+                    } else {
+                        overlay_set(overlay_stat ^ action.layer.val<<12);
                     }
                     break;
-                case LAYER_TAP_TOGGLE:  /* switch on hold and toggle on several taps */
+
+                /* Overlay Bit invert */
+                case OP_INV:
+                    /* with tap toggle */
                     if (event.pressed) {
                         if (tap_count < TAPPING_TOGGLE) {
-                            debug("LAYER_BIT: tap toggle(press).\n");
-                            layer_switch(current_layer ^ action.layer.val);
+                            debug("OVERLAY_INV: tap toggle(press).\n");
+                            overlay_invert(action.layer.val);
                         }
                     } else {
                         if (tap_count <= TAPPING_TOGGLE) {
-                            debug("LAYER_BIT: tap toggle(release).\n");
-                            layer_switch(current_layer ^ action.layer.val);
+                            debug("OVERLAY_INV: tap toggle(release).\n");
+                            overlay_invert(action.layer.val);
                         }
                     }
                     break;
-                case 0xFF:
-                    // change default layer
+                case (OP_INV | ON_PRESS):
+                    if (event.pressed) {
+                        overlay_invert(action.layer.val);
+                    }
+                    break;
+                case (OP_INV | ON_RELEASE):
+                    if (!event.pressed) {
+                        overlay_invert(action.layer.val);
+                    }
+                    break;
+                case (OP_INV | ON_BOTH):
+                    overlay_invert(action.layer.val);
+                    break;
+
+                /* Overlay Bit on */
+                case OP_ON:
                     if (event.pressed) {
-                        default_layer = current_layer ^ action.layer.val;
-                        layer_switch(default_layer);
+                        overlay_on(action.layer.val);
                     } else {
-                        default_layer = current_layer ^ action.layer.val;
-                        layer_switch(default_layer);
+                        overlay_off(action.layer.val);
+                    }
+                    break;
+                case (OP_ON | ON_PRESS):
+                    if (event.pressed) {
+                        overlay_on(action.layer.val);
                     }
                     break;
+                case (OP_ON | ON_RELEASE):
+                    if (!event.pressed) {
+                        overlay_on(action.layer.val);
+                    }
+                    break;
+                case (OP_ON | ON_BOTH):
+                    overlay_on(action.layer.val);
+                    break;
+
+                /* Overlay Bit off */
+                case OP_OFF:
+                    if (event.pressed) {
+                        overlay_off(action.layer.val);
+                    } else {
+                        overlay_on(action.layer.val);
+                    }
+                    break;
+                case (OP_OFF | ON_PRESS):
+                    if (event.pressed) {
+                        overlay_off(action.layer.val);
+                    }
+                    break;
+                case (OP_OFF | ON_RELEASE):
+                    if (!event.pressed) {
+                        overlay_off(action.layer.val);
+                    }
+                    break;
+                case (OP_OFF | ON_BOTH):
+                    overlay_off(action.layer.val);
+                    break;
+
+                /* Overlay Bit set */
+                case OP_SET:
+                    if (event.pressed) {
+                        overlay_move(action.layer.val);
+                    } else {
+                        overlay_clear();
+                    }
+                    break;
+                case (OP_SET | ON_PRESS):
+                    if (event.pressed) {
+                        overlay_move(action.layer.val);
+                    }
+                    break;
+                case (OP_SET | ON_RELEASE):
+                    if (!event.pressed) {
+                        overlay_move(action.layer.val);
+                    }
+                    break;
+                case (OP_SET | ON_BOTH):
+                    overlay_move(action.layer.val);
+                    break;
+
+                /* Overlay Bit invert with tap key */
                 default:
-                    // with tap key
                     if (event.pressed) {
-                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
-                            debug("LAYER_BIT: Tap: register_code\n");
+                        if (tap_count > 0) {
+                            debug("OVERLAY_TAP_KEY: Tap: register_code\n");
                             register_code(action.layer.code);
                         } else {
-                            debug("LAYER_BIT: No tap: layer_switch(bit on)\n");
-                            layer_switch(current_layer ^ action.layer.val);
+                            debug("OVERLAY_TAP_KEY: No tap: On on press\n");
+                            overlay_on(action.layer.val);
                         }
                     } else {
-                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
-                            debug("LAYER_BIT: Tap: unregister_code\n");
+                        if (tap_count > 0) {
+                            debug("OVERLAY_TAP_KEY: Tap: unregister_code\n");
                             unregister_code(action.layer.code);
                         } else {
-                            debug("LAYER_BIT: No tap: layer_switch(bit off)\n");
-                            layer_switch(current_layer ^ action.layer.val);
+                            debug("OVERLAY_TAP_KEY: No tap: Off on release\n");
+                            overlay_off(action.layer.val);
                         }
                     }
                     break;
@@ -515,7 +672,7 @@ static void process_action(keyrecord_t *record)
 
         /* Extentions */
         case ACT_MACRO:
-            // TODO
+            action_macro_play(action_get_macro(record, action.func.id, action.func.opt));
             break;
         case ACT_COMMAND:
             break;
@@ -540,16 +697,17 @@ static bool process_tapping(keyrecord_t *keyp)
     // if tapping
     if (IS_TAPPING_PRESSED()) {
         if (WITHIN_TAPPING_TERM(event)) {
-            if (tapping_key.tap_count == 0) {
+            if (tapping_key.tap.count == 0) {
                 if (IS_TAPPING_KEY(event.key) && !event.pressed) {
                     // first tap!
                     debug("Tapping: First tap(0->1).\n");
-                    tapping_key.tap_count = 1;
+                    tapping_key.tap.count = 1;
+                    tapping_key.tap.interrupted  = (waiting_buffer_has_anykey_pressed() ? true : false);
                     debug_tapping_key();
                     process_action(&tapping_key);
 
                     // enqueue
-                    keyp->tap_count = tapping_key.tap_count;
+                    keyp->tap = tapping_key.tap;
                     return false;
                 }
 #if TAPPING_TERM >= 500
@@ -573,19 +731,19 @@ static bool process_tapping(keyrecord_t *keyp)
             // tap_count > 0
             else {
                 if (IS_TAPPING_KEY(event.key) && !event.pressed) {
-                    debug("Tapping: Tap release("); debug_dec(tapping_key.tap_count); debug(")\n");
-                    keyp->tap_count = tapping_key.tap_count;
+                    debug("Tapping: Tap release("); debug_dec(tapping_key.tap.count); debug(")\n");
+                    keyp->tap = tapping_key.tap;
                     process_action(keyp);
                     tapping_key = *keyp;
                     debug_tapping_key();
                     return true;
                 }
                 else if (is_tap_key(keyp->event.key) && event.pressed) {
-                    if (tapping_key.tap_count > 1) {
+                    if (tapping_key.tap.count > 1) {
                         debug("Tapping: Start new tap with releasing last tap(>1).\n");
                         // unregister key
                         process_action(&(keyrecord_t){
-                                .tap_count = tapping_key.tap_count,
+                                .tap = tapping_key.tap,
                                 .event.key = tapping_key.event.key,
                                 .event.time = event.time,
                                 .event.pressed = false
@@ -609,7 +767,7 @@ static bool process_tapping(keyrecord_t *keyp)
         }
         // after TAPPING_TERM
         else {
-            if (tapping_key.tap_count == 0) {
+            if (tapping_key.tap.count == 0) {
                 debug("Tapping: End. Timeout. Not tap(0): ");
                 debug_event(event); debug("\n");
                 process_action(&tapping_key);
@@ -619,17 +777,17 @@ static bool process_tapping(keyrecord_t *keyp)
             }  else {
                 if (IS_TAPPING_KEY(event.key) && !event.pressed) {
                     debug("Tapping: End. last timeout tap release(>0).");
-                    keyp->tap_count = tapping_key.tap_count;
+                    keyp->tap = tapping_key.tap;
                     process_action(keyp);
                     tapping_key = (keyrecord_t){};
                     return true;
                 }
                 else if (is_tap_key(keyp->event.key) && event.pressed) {
-                    if (tapping_key.tap_count > 1) {
+                    if (tapping_key.tap.count > 1) {
                         debug("Tapping: Start new tap with releasing last timeout tap(>1).\n");
                         // unregister key
                         process_action(&(keyrecord_t){
-                                .tap_count = tapping_key.tap_count,
+                                .tap = tapping_key.tap,
                                 .event.key = tapping_key.event.key,
                                 .event.time = event.time,
                                 .event.pressed = false
@@ -653,10 +811,11 @@ static bool process_tapping(keyrecord_t *keyp)
         }
     } else if (IS_TAPPING_RELEASED()) {
         if (WITHIN_TAPPING_TERM(event)) {
-            if (tapping_key.tap_count > 0 && IS_TAPPING_KEY(event.key) && event.pressed) {
+            if (tapping_key.tap.count > 0 && IS_TAPPING_KEY(event.key) && event.pressed) {
                 // sequential tap.
-                keyp->tap_count = tapping_key.tap_count + 1;
-                debug("Tapping: Tap press("); debug_dec(keyp->tap_count); debug(")\n");
+                keyp->tap = tapping_key.tap;
+                keyp->tap.count += 1;
+                debug("Tapping: Tap press("); debug_dec(keyp->tap.count); debug(")\n");
                 process_action(keyp);
                 tapping_key = *keyp;
                 debug_tapping_key();
@@ -701,16 +860,16 @@ static bool process_tapping(keyrecord_t *keyp)
 static void waiting_buffer_scan_tap(void)
 {
     // tapping already is settled
-    if (tapping_key.tap_count > 0) return;
-    // invalid state: tapping_key released && tap_count == 0
+    if (tapping_key.tap.count > 0) return;
+    // invalid state: tapping_key released && tap.count == 0
     if (!tapping_key.event.pressed) return;
 
     for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
         if (IS_TAPPING_KEY(waiting_buffer[i].event.key) &&
                 !waiting_buffer[i].event.pressed &&
                 WITHIN_TAPPING_TERM(waiting_buffer[i].event)) {
-            tapping_key.tap_count = 1;
-            waiting_buffer[i].tap_count = 1;
+            tapping_key.tap.count = 1;
+            waiting_buffer[i].tap.count = 1;
             process_action(&tapping_key);
 
             debug("waiting_buffer_scan_tap: found at ["); debug_dec(i); debug("]\n");
@@ -813,39 +972,24 @@ bool sending_anykey(void)
             host_last_sysytem_report() || host_last_consumer_report());
 }
 
-void layer_switch(uint8_t new_layer)
-{
-    if (current_layer != new_layer) {
-        debug("Layer Switch: "); debug_hex(current_layer);
-        debug(" -> "); debug_hex(new_layer); debug("\n");
-
-        current_layer = new_layer;
-        clear_keyboard_but_mods(); // To avoid stuck keys
-        // NOTE: update mods with full scan of matrix? if modifier changes between layers
-    }
-}
-
 bool is_tap_key(key_t key)
 {
-    action_t action = get_action(key);
+    action_t action = layer_switch_get_action(key);
 
     switch (action.kind.id) {
         case ACT_LMODS_TAP:
         case ACT_RMODS_TAP:
             return true;
-        case ACT_LAYER:
-        case ACT_LAYER_BIT:
+        case ACT_KEYMAP:
+        case ACT_OVERLAY:
             switch (action.layer.code) {
-                case LAYER_MOMENTARY:
-                case LAYER_ON_PRESS:
-                case LAYER_ON_RELEASE:
-                case LAYER_DEFAULT:
-                    return false;
-                case LAYER_TAP_TOGGLE:
-                default:    /* tap key */
+                case 0x04 ... 0xEF:    /* tap key */
+                case OP_INV:
                     return true;
+                default:
+                    return false;
             }
-            return false;
+        case ACT_MACRO:
         case ACT_FUNCTION:
             if (action.func.opt & FUNC_TAP) { return true; }
             return false;
@@ -865,7 +1009,8 @@ static void debug_event(keyevent_t event)
 }
 static void debug_record(keyrecord_t record)
 {
-    debug_event(record.event); debug(":"); debug_dec(record.tap_count);
+    debug_event(record.event); debug(":"); debug_dec(record.tap.count);
+    if (record.tap.interrupted) debug("-");
 }
 static void debug_action(action_t action)
 {
@@ -876,8 +1021,8 @@ static void debug_action(action_t action)
         case ACT_RMODS_TAP:         debug("ACT_RMODS_TAP");         break;
         case ACT_USAGE:             debug("ACT_USAGE");             break;
         case ACT_MOUSEKEY:          debug("ACT_MOUSEKEY");          break;
-        case ACT_LAYER:             debug("ACT_LAYER");     break;
-        case ACT_LAYER_BIT:         debug("ACT_LAYER_BIT");         break;
+        case ACT_KEYMAP:            debug("ACT_KEYMAP");            break;
+        case ACT_OVERLAY:           debug("ACT_OVERLAY");           break;
         case ACT_MACRO:             debug("ACT_MACRO");             break;
         case ACT_COMMAND:           debug("ACT_COMMAND");           break;
         case ACT_FUNCTION:          debug("ACT_FUNCTION");          break;
diff --git a/common/action.h b/common/action.h
index b9a6cb5b40..ead917983c 100644
--- a/common/action.h
+++ b/common/action.h
@@ -19,12 +19,23 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "keyboard.h"
 #include "keycode.h"
+#include "action_macro.h"
 
 
 /* Struct to record event and tap count  */
+typedef union {
+    struct {
+        bool    interrupted :1;
+        bool    reserved2   :1;
+        bool    reserved1   :1;
+        bool    reserved0   :1;
+        uint8_t count       :4;
+    };
+} tap_t;
+
 typedef struct {
     keyevent_t  event;
-    uint8_t     tap_count;
+    tap_t tap;
 } keyrecord_t;
 
 /* Action struct.
@@ -76,17 +87,15 @@ typedef union {
 
 
 
-/* layer used currently */
-extern uint8_t current_layer;
-/* layer to return or start with */
-extern uint8_t default_layer;
-
 /* Execute action per keyevent */
 void action_exec(keyevent_t event);
 
 /* action for key */
 action_t action_for_key(uint8_t layer, key_t key);
 
+/* macro */
+const prog_macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt);
+
 /* user defined special function */
 void action_function(keyrecord_t *record, uint8_t id, uint8_t opt);
 
@@ -112,8 +121,8 @@ bool waiting_buffer_has_anykey_pressed(void);
  * ============
  * 16bit code: action_kind(4bit) + action_parameter(12bit)
  *
- * Keyboard Keys
- * -------------
+ * Keyboard Keys(00XX)
+ * -------------------
  * ACT_LMODS(0000):
  * 0000|0000|000000|00    No action
  * 0000|0000|000000|01    Transparent
@@ -143,8 +152,8 @@ bool waiting_buffer_has_anykey_pressed(void);
  * 0011|mods| keycode     Right mods + tap Key
  *
  *
- * Other HID Usage
- * ---------------
+ * Other keys(01XX)
+ * --------------------
  * This action handles other usages than keyboard.
  * ACT_USAGE(0100):
  * 0100|00| usage(10)     System control(0x80) - General Desktop page(0x01)
@@ -152,41 +161,45 @@ bool waiting_buffer_has_anykey_pressed(void);
  * 0100|10| usage(10)     (reserved)
  * 0100|11| usage(10)     (reserved)
  *
- *
- * Mouse Keys
- * ----------
- * TODO: can be combined with 'Other HID Usage'? to save action kind id.
  * ACT_MOUSEKEY(0110):
  * 0101|XXXX| keycode     Mouse key
  *
  *
- * Layer Actions
- * -------------
- * ACT_LAYER(1000):            Set layer
- * ACT_LAYER_BIT(1001):        Bit-op layer
- *
- * 1000|LLLL|0000 0000   set L to layer on press and set default on release(momentary)
- * 1000|LLLL|0000 0001   set L to layer on press
- * 1000|LLLL|0000 0010   set L to layer on release
- * 1000|----|0000 0011   set default to layer on both(return to default layer)
- * 1000|LLLL| keycode    set L to layer while hold and send key on tap
- * 1000|LLLL|1111 0000   set L to layer while hold and toggle on several taps
- * 1000|LLLL|1111 1111   set L to default and layer(on press)
- *
- * 1001|BBBB|0000 0000   (not used)
- * 1001|BBBB|0000 0001   bit-xor layer with B on press
- * 1001|BBBB|0000 0010   bit-xor layer with B on release
- * 1001|BBBB|0000 0011   bit-xor layer with B on both(momentary)
- * 1001|BBBB| keycode    bit-xor layer with B while hold and send key on tap
- * 1001|BBBB|1111 0000   bit-xor layer with B while hold and toggle on several taps
- * 1001|BBBB|1111 1111   bit-xor default with B and set layer(on press)
+ * Layer Actions(10XX)
+ * -------------------
+ * ACT_KEYMAP:
+ * 1000|--xx|0000 0000   Clear keyamp and overlay
+ * 1000|LLLL|0000 00xx   Reset default layer and clear keymap and overlay
+ * 1000|LLLL| keycode    Invert with tap key
+ * 1000|LLLL|1111 0000   Invert with tap toggle
+ * 1000|LLLL|1111 00xx   Invert[^=  1<<L]
+ * 1000|LLLL|1111 0100   On/Off
+ * 1000|LLLL|1111 01xx   On[|= 1<<L]
+ * 1000|LLLL|1111 1000   Off/On
+ * 1000|LLLL|1111 10xx   Off[&= ~(1<<L)]
+ * 1000|LLLL|1111 1100   Set/Clear
+ * 1000|LLLL|1111 11xx   Set[= 1<<L]
+ * default layer: 0-15(4bit)
+ * xx: On {00:for special use, 01:press, 10:release, 11:both}
  *
+ * ACT_OVERLAY:
+ * 1011|0000|0000 0000   Clear overlay
+ * 1011|LLLL|0000 00ss   Invert 4-bit chunk [^= L<<(4*ss)]
+ * 1011|LLLL| keycode    Invert with tap key
+ * 1011|LLLL|1111 0000   Invert with tap toggle
+ * 1011|LLLL|1111 00xx   Invert[^= 1<<L]
+ * 1011|LLLL|1111 0100   On/Off(momentary)
+ * 1011|LLLL|1111 01xx   On[|= 1<<L]
+ * 1011|LLLL|1111 1000   Off/On
+ * 1011|LLLL|1111 10xx   Off[&= ~(1<<L)]
+ * 1011|LLLL|1111 1100   Set/Clear
+ * 1011|LLLL|1111 11xx   Set[= 1<<L]
+ * overlays: 16-layer on/off status(16bit)
+ * xx: On {00:for special use, 01:press, 10:release, 11:both}
  *
  *
  * Extensions(11XX)
  * ----------------
- * NOTE: NOT FIXED
- *
  * ACT_MACRO(1100):
  * 1100|opt | id(8)      Macro play?
  * 1100|1111| id(8)      Macro record?
@@ -208,8 +221,8 @@ enum action_kind_id {
     ACT_USAGE           = 0b0100,
     ACT_MOUSEKEY        = 0b0101,
 
-    ACT_LAYER           = 0b1000,
-    ACT_LAYER_BIT       = 0b1001,
+    ACT_KEYMAP          = 0b1000,
+    ACT_OVERLAY         = 0b1001,
 
     ACT_MACRO           = 0b1100,
     ACT_COMMAND         = 0b1110,
@@ -223,20 +236,20 @@ enum action_kind_id {
 #define ACTION(kind, param)             ((kind)<<12 | (param))
 #define MODS4(mods)                     (((mods)>>4 | (mods)) & 0x0F)
 
-/* Key */
+/*
+ * Key
+ */
 #define ACTION_KEY(key)                 ACTION(ACT_LMODS,    key)
 /* Mods & key */
 #define ACTION_LMODS(mods)              ACTION(ACT_LMODS,    MODS4(mods)<<8 | 0x00)
 #define ACTION_LMODS_KEY(mods, key)     ACTION(ACT_LMODS,    MODS4(mods)<<8 | (key))
 #define ACTION_RMODS(mods)              ACTION(ACT_RMODS,    MODS4(mods)<<8 | 0x00)
 #define ACTION_RMODS_KEY(mods, key)     ACTION(ACT_RMODS,    MODS4(mods)<<8 | (key))
-/* Mod & key */
 #define ACTION_LMOD(mod)                ACTION(ACT_LMODS,    MODS4(MOD_BIT(mod))<<8 | 0x00)
 #define ACTION_LMOD_KEY(mod, key)       ACTION(ACT_LMODS,    MODS4(MOD_BIT(mod))<<8 | (key))
 #define ACTION_RMOD(mod)                ACTION(ACT_RMODS,    MODS4(MOD_BIT(mod))<<8 | 0x00)
 #define ACTION_RMOD_KEY(mod, key)       ACTION(ACT_RMODS,    MODS4(MOD_BIT(mod))<<8 | (key))
-
-/* Mods + Tap key */
+/* Tap key */
 enum mods_codes {
     MODS_ONESHOT           = 0x00,
 };
@@ -244,102 +257,112 @@ enum mods_codes {
 #define ACTION_LMODS_ONESHOT(mods)      ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
 #define ACTION_RMODS_TAP_KEY(mods, key) ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | (key))
 #define ACTION_RMODS_ONESHOT(mods)      ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
-/* Mod + Tap key */
 #define ACTION_LMOD_TAP_KEY(mod, key)   ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
 #define ACTION_LMOD_ONESHOT(mod)        ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
 #define ACTION_RMOD_TAP_KEY(mod, key)   ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
 #define ACTION_RMOD_ONESHOT(mod)        ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
 
+/* HID Usage */
+enum usage_pages {
+    PAGE_SYSTEM,
+    PAGE_CONSUMER
+};
+#define ACTION_USAGE_SYSTEM(id)         ACTION(ACT_USAGE, PAGE_SYSTEM<<10 | (id))
+#define ACTION_USAGE_CONSUMER(id)       ACTION(ACT_USAGE, PAGE_CONSUMER<<10 | (id))
 
-/*
- * Switch layer
+/* Mousekey */
+#define ACTION_MOUSEKEY(key)            ACTION(ACT_MOUSEKEY, key)
+
+
+
+/* Layer Actions:
+ *      Invert  layer ^= (1<<layer)
+ *      On      layer |= (1<<layer)
+ *      Off     layer &= ~(1<<layer)
+ *      Set     layer = (1<<layer)
+ *      Clear   layer = 0
  */
-enum layer_codes {
-    LAYER_MOMENTARY = 0,
-    LAYER_ON_PRESS = 1,
-    LAYER_ON_RELEASE = 2,
-    LAYER_DEFAULT =3,
-    LAYER_TAP_TOGGLE = 0xF0,
-    LAYER_CHANGE_DEFAULT = 0xFF
-};
-enum layer_vals_default {
-    DEFAULT_ON_PRESS = 1,
-    DEFAULT_ON_RELEASE = 2,
-    DEFAULT_ON_BOTH = 3,
+enum layer_params {
+    ON_PRESS    = 1,
+    ON_RELEASE  = 2,
+    ON_BOTH     = 3,
+
+    OP_RESET  = 0x00,
+    OP_INV4  = 0x00,
+    OP_INV   = 0xF0,
+    OP_ON    = 0xF4,
+    OP_OFF   = 0xF8,
+    OP_SET   = 0xFC,
 };
 
-/*
- * return to default layer
+/* 
+ * Default Layer
  */
-#define ACTION_LAYER_DEFAULT                    ACTION_LAYER_DEFAULT_R
-/* set default layer on press */
-#define ACTION_LAYER_DEFAULT_P                  ACTION(ACT_LAYER, DEFAULT_ON_PRESS<<8 | LAYER_DEFAULT)
-/* set default layer on release */
-#define ACTION_LAYER_DEFAULT_R                  ACTION(ACT_LAYER, DEFAULT_ON_RELEASE<<8 | LAYER_DEFAULT)
-/* change default layer and set layer */
-
+#define ACTION_DEFAULT_LAYER                     ACTION(ACT_KEYMAP, ON_RELEASE<<8 | OP_RESET | 0)
+#define ACTION_DEFAULT_LAYER_SET(layer)          ACTION_DEFAULT_LAYER_TO(layer, ON_RELEASE)
+#define ACTION_DEFAULT_LAYER_TO(layer, on)       ACTION(ACT_KEYMAP, (layer)<<8 | OP_RESET | (on))
 /*
- * Set layer
+ * Keymap Layer
  */
-/* set layer on press and none on release */
-#define ACTION_LAYER_SET(layer)                 ACTION_LAYER_SET_P(layer)
-/* set layer on press and set default on release (This is needed by legacy keymap support.) */
-#define ACTION_LAYER_SET_MOMENTARY(layer)       ACTION(ACT_LAYER, (layer)<<8 | LAYER_MOMENTARY)
-/* set layer on press and none on release */
-#define ACTION_LAYER_SET_TOGGLE(layer)          ACTION_LAYER_SET_R(layer)
-/* set layer while hold and send key on tap */
-#define ACTION_LAYER_SET_TAP_KEY(layer, key)    ACTION(ACT_LAYER, (layer)<<8 | (key))
-/* set layer on press */
-#define ACTION_LAYER_SET_P(layer)               ACTION(ACT_LAYER, (layer)<<8 | LAYER_ON_PRESS)
-/* set layer on release */
-#define ACTION_LAYER_SET_R(layer)               ACTION(ACT_LAYER, (layer)<<8 | LAYER_ON_RELEASE)
-/* set layer on hold and toggle on several taps */
-#define ACTION_LAYER_SET_TAP_TOGGLE(layer)      ACTION(ACT_LAYER, (layer)<<8 | LAYER_TAP_TOGGLE)
-/* set default layer on both press and release */
-#define ACTION_LAYER_SET_DEFAULT(layer)         ACTION(ACT_LAYER, (layer)<<8 | LAYER_CHANGE_DEFAULT)
+#define ACTION_KEYMAP_MOMENTARY(layer)           ACTION_KEYMAP_ON_OFF(layer)
+#define ACTION_KEYMAP_TOGGLE(layer)              ACTION_KEYMAP_INV(layer, ON_RELEASE)
+/* Keymap Invert */
+#define ACTION_KEYMAP_INV(layer, on)             ACTION(ACT_KEYMAP, (layer)<<8 | OP_INV | (on))
+#define ACTION_KEYMAP_TAP_TOGGLE(layer)          ACTION(ACT_KEYMAP, (layer)<<8 | OP_INV | 0)
+/* Keymap On */
+#define ACTION_KEYMAP_ON(layer, on)              ACTION(ACT_KEYMAP, (layer)<<8 | OP_ON  | (on))
+#define ACTION_KEYMAP_ON_OFF(layer)              ACTION(ACT_KEYMAP, (layer)<<8 | OP_ON  | 0)
+/* Keymap Off */
+#define ACTION_KEYMAP_OFF(layer, on)             ACTION(ACT_KEYMAP, (layer)<<8 | OP_OFF | (on))
+#define ACTION_KEYMAP_OFF_ON(layer)              ACTION(ACT_KEYMAP, (layer)<<8 | OP_OFF | 0)
+/* Keymap Set */
+#define ACTION_KEYMAP_SET(layer, on)             ACTION(ACT_KEYMAP, (layer)<<8 | OP_SET | (on))
+#define ACTION_KEYMAP_SET_CLEAR(layer)           ACTION(ACT_KEYMAP, (layer)<<8 | OP_SET | 0)
+/* Keymap Invert with tap key */
+#define ACTION_KEYMAP_TAP_KEY(layer, key)        ACTION(ACT_KEYMAP, (layer)<<8 | (key))
 
 /*
- * Bit-op layer
+ * Overlay Layer
  */
-/* bit-xor on both press and release */
-#define ACTION_LAYER_BIT(bits)                  ACTION_LAYER_BIT_MOMENTARY(bits)
-#define ACTION_LAYER_BIT_MOMENTARY(bits)        ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_MOMENTARY)
-/* bit-xor on press */
-#define ACTION_LAYER_BIT_TOGGLE(bits)           ACTION_LAYER_BIT_R(bits)
-/* bit-xor while hold and send key on tap */
-#define ACTION_LAYER_BIT_TAP_KEY(bits, key)     ACTION(ACT_LAYER_BIT, (bits)<<8 | (key))
-/* bit-xor on press */
-#define ACTION_LAYER_BIT_P(bits)                ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_ON_PRESS)
-/* bit-xor on release */
-#define ACTION_LAYER_BIT_R(bits)                ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_ON_RELEASE)
-/* bit-xor while hold and toggle on several taps */
-#define ACTION_LAYER_BIT_TAP_TOGGLE(bits)       ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_TAP_TOGGLE)
-/* bit-xor default layer and set layer */
-#define ACTION_LAYER_BIT_DEFAULT(bits)          ACTION(ACT_LAYER, (bits)<<8 | LAYER_CHANGE_DEFAULT)
-
-
-/* HID Usage */
-enum usage_pages {
-    PAGE_SYSTEM,
-    PAGE_CONSUMER
-};
-#define ACTION_USAGE_SYSTEM(id)         ACTION(ACT_USAGE, PAGE_SYSTEM<<10 | (id))
-#define ACTION_USAGE_CONSUMER(id)       ACTION(ACT_USAGE, PAGE_CONSUMER<<10 | (id))
+#define ACTION_OVERLAY_MOMENTARY(layer)           ACTION_OVERLAY_ON_OFF(layer)
+#define ACTION_OVERLAY_TOGGLE(layer)              ACTION_OVERLAY_INV(layer, ON_RELEASE)
+/* Overlay Clear */
+#define ACTION_OVERLAY_CLEAR(on)                  ACTION(ACT_OVERLAY, 0<<8 | OP_INV4 | (on))
+/* Overlay Invert 4-bit chunk */
+#define ACTION_OVERLAY_INV4(bits, shift)          ACTION(ACT_OVERLAY, (bits)<<8 | OP_INV4 | shift)
+/* Overlay Invert */
+#define ACTION_OVERLAY_INV(layer, on)             ACTION(ACT_OVERLAY, (layer)<<8 | OP_INV | (on))
+#define ACTION_OVERLAY_TAP_TOGGLE(layer)          ACTION(ACT_OVERLAY, (layer)<<8 | OP_INV | 0)
+/* Overlay On */
+#define ACTION_OVERLAY_ON(layer, on)              ACTION(ACT_OVERLAY, (layer)<<8 | OP_ON  | (on))
+#define ACTION_OVERLAY_ON_OFF(layer)              ACTION(ACT_OVERLAY, (layer)<<8 | OP_ON  | 0)
+/* Overlay Off */
+#define ACTION_OVERLAY_OFF(layer, on)             ACTION(ACT_OVERLAY, (layer)<<8 | OP_OFF | (on))
+#define ACTION_OVERLAY_OFF_ON(layer)              ACTION(ACT_OVERLAY, (layer)<<8 | OP_OFF | 0)
+/* Overlay Set */
+#define ACTION_OVERLAY_SET(layer, on)             ACTION(ACT_OVERLAY, (layer)<<8 | OP_SET | (on))
+#define ACTION_OVERLAY_SET_CLEAR(layer)           ACTION(ACT_OVERLAY, (layer)<<8 | OP_SET | 0)
+/* Overlay Invert with tap key */
+#define ACTION_OVERLAY_TAP_KEY(layer, key)        ACTION(ACT_OVERLAY, (layer)<<8 | (key))
 
-/* Mousekey */
-#define ACTION_MOUSEKEY(key)            ACTION(ACT_MOUSEKEY, key)
 
+/*
+ * Extensions
+ */
 /* Macro */
-#define ACTION_MACRO(opt, id)           ACTION(ACT_FUNCTION, (opt)<<8 | (addr))
+#define ACTION_MACRO(id)                ACTION(ACT_MACRO, (id))
+#define ACTION_MACRO_TAP(id)            ACTION(ACT_MACRO, FUNC_TAP<<8 | (id))
+#define ACTION_MACRO_OPT(id, opt)       ACTION(ACT_MACRO, (opt)<<8 | (id))
 
 /* Command */
-#define ACTION_COMMAND(opt, id)         ACTION(ACT_COMMAND,  (opt)<<8 | (addr))
+#define ACTION_COMMAND(id, opt)         ACTION(ACT_COMMAND,  (opt)<<8 | (addr))
 
 /* Function */
 enum function_opts {
     FUNC_TAP        = 0x8,      /* indciates function is tappable */
 };
-#define ACTION_FUNCTION(id, opt)        ACTION(ACT_FUNCTION, (opt)<<8 | id)
-#define ACTION_FUNCTION_TAP(id)         ACTION(ACT_FUNCTION, FUNC_TAP<<8 | id)
+#define ACTION_FUNCTION(id)             ACTION(ACT_FUNCTION, (id))
+#define ACTION_FUNCTION_TAP(id)         ACTION(ACT_FUNCTION, FUNC_TAP<<8 | (id))
+#define ACTION_FUNCTION_OPT(id, opt)    ACTION(ACT_FUNCTION, (opt)<<8 | (id))
 
 #endif  /* ACTION_H */
diff --git a/common/action_macro.c b/common/action_macro.c
index 72859c0dda..ca7ffa822d 100644
--- a/common/action_macro.c
+++ b/common/action_macro.c
@@ -41,7 +41,6 @@ void action_macro_play(const prog_macro_t *macro_p)
             case MODS_DOWN:
                 MACRO_READ();
                 debug("MODS_DOWN("); debug_hex(macro); debug(")\n");
-                debug("MODS_UP("); debug_hex(macro); debug(")\n");
                 add_mods(macro);
                 break;
             case MODS_UP:
diff --git a/common/action_macro.h b/common/action_macro.h
index 3833c7c8ae..db65779590 100644
--- a/common/action_macro.h
+++ b/common/action_macro.h
@@ -20,6 +20,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <avr/pgmspace.h>
 
 
+#define MACRO_NONE  0
+#define MACRO(...) ({ static prog_macro_t _m[] PROGMEM = { __VA_ARGS__ }; _m; })
+
+
 typedef uint8_t macro_t;
 typedef macro_t prog_macro_t PROGMEM;
 
diff --git a/common/command.c b/common/command.c
index 7bb2a23f19..202d531fd8 100644
--- a/common/command.c
+++ b/common/command.c
@@ -26,7 +26,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "timer.h"
 #include "keyboard.h"
 #include "bootloader.h"
+#include "layer_switch.h"
 #include "command.h"
+
 #ifdef MOUSEKEY_ENABLE
 #include "mousekey.h"
 #endif
@@ -53,7 +55,7 @@ static void mousekey_console_help(void);
 #endif
 
 static uint8_t numkey2num(uint8_t code);
-static void switch_layer(uint8_t layer);
+static void switch_default_layer(uint8_t layer);
 
 
 typedef enum { ONESHOT, CONSOLE, MOUSEKEY } cmdstate_t;
@@ -261,18 +263,16 @@ static bool command_common(uint8_t code)
 #endif
             break;
 #endif
+        case KC_ESC:
+        case KC_GRV:
         case KC_0:
-        case KC_F10:
-            clear_keyboard();
-            switch_layer(0);
+            switch_default_layer(0);
             break;
         case KC_1 ... KC_9:
-            clear_keyboard();
-            switch_layer((code - KC_1) + 1);
+            switch_default_layer((code - KC_1) + 1);
             break;
-        case KC_F1 ... KC_F9:
-            clear_keyboard();
-            switch_layer((code - KC_F1) + 1);
+        case KC_F1 ... KC_F12:
+            switch_default_layer((code - KC_F1) + 1);
             break;
         default:
             print("?");
@@ -541,11 +541,10 @@ static uint8_t numkey2num(uint8_t code)
     return 0;
 }
 
-static void switch_layer(uint8_t layer)
+static void switch_default_layer(uint8_t layer)
 {
-    print_val_hex8(current_layer);
-    print_val_hex8(default_layer);
-    current_layer = layer;
-    default_layer = layer;
-    print("switch to "); print_val_hex8(layer);
+    print("switch_default_layer: "); print_dec(default_layer); print(" to "); print_dec(layer); print("\n");
+    default_layer_set(layer);
+    overlay_clear();
+    clear_keyboard();
 }
diff --git a/common/keymap.c b/common/keymap.c
index 078615814e..aa8d944a79 100644
--- a/common/keymap.c
+++ b/common/keymap.c
@@ -14,13 +14,71 @@ 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 <avr/pgmspace.h>
 #include "keymap.h"
 #include "report.h"
 #include "keycode.h"
+#include "layer_switch.h"
 #include "action.h"
+#include "action_macro.h"
+#include "debug.h"
 
 
-action_t keymap_keycode_to_action(uint8_t keycode)
+static action_t keycode_to_action(uint8_t keycode);
+
+#ifdef USE_KEYMAP_V2
+/* converts key to action */
+action_t action_for_key(uint8_t layer, key_t key)
+{
+    uint8_t keycode = keymap_key_to_keycode(layer, key);
+    switch (keycode) {
+        case KC_FN0 ... KC_FN31:
+            return keymap_fn_to_action(keycode);
+        default:
+            return keycode_to_action(keycode);
+    }
+}
+#else
+/* 
+ * legacy keymap support
+ */
+/* translation for legacy keymap */
+action_t action_for_key(uint8_t layer, key_t key)
+{
+    /* convert from legacy keycode to action */
+    /* layer 16-31 indicate 'overlay' but not supported in legacy keymap */
+    uint8_t keycode = keymap_get_keycode((layer & OVERLAY_MASK), key.row, key.col);
+    action_t action;
+    switch (keycode) {
+        case KC_FN0 ... KC_FN31:
+            {
+                uint8_t layer = keymap_fn_layer(FN_INDEX(keycode));
+                uint8_t key = keymap_fn_keycode(FN_INDEX(keycode));
+                if (key) {
+                    action.code = ACTION_KEYMAP_TAP_KEY(layer, key);
+                } else {
+                    action.code = ACTION_KEYMAP_MOMENTARY(layer);
+                }
+            }
+            return action;
+        default:
+            return keycode_to_action(keycode);
+    }
+}
+#endif
+
+
+__attribute__ ((weak))
+const prog_macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) { return MACRO_NONE; }
+
+__attribute__ ((weak))
+void action_function(keyrecord_t *record, uint8_t id, uint8_t opt) {}
+
+
+
+
+/* translates keycode to action */
+static action_t keycode_to_action(uint8_t keycode)
 {
     action_t action;
     switch (keycode) {
@@ -51,34 +109,3 @@ action_t keymap_keycode_to_action(uint8_t keycode)
     }
     return action;
 }
-
-#ifndef NO_LEGACY_KEYMAP_SUPPORT
-/* legacy support with weak reference */
-__attribute__ ((weak))
-action_t action_for_key(uint8_t layer, key_t key)
-{
-    /* convert from legacy keycode to action */
-    uint8_t keycode = keymap_get_keycode(layer, key.row, key.col);
-    action_t action;
-    switch (keycode) {
-        case KC_FN0 ... KC_FN31:
-            {
-                uint8_t layer = keymap_fn_layer(FN_INDEX(keycode));
-                uint8_t key = keymap_fn_keycode(FN_INDEX(keycode));
-                if (key) {
-                    action.code = ACTION_LAYER_SET_TAP_KEY(layer, key);
-                } else {
-                    action.code = ACTION_LAYER_SET_MOMENTARY(layer);
-                }
-            }
-            return action;
-        default:
-            return keymap_keycode_to_action(keycode);
-    }
-}
-#endif
-
-__attribute__ ((weak))
-void action_function(keyrecord_t *event, uint8_t id, uint8_t opt)
-{
-}
diff --git a/common/keymap.h b/common/keymap.h
index 63bf14482b..0c483483fb 100644
--- a/common/keymap.h
+++ b/common/keymap.h
@@ -23,16 +23,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "action.h"
 
 
-/* translates key_t to keycode */
+#ifdef USE_KEYMAP_V2
+/* translates key to keycode
+ *      layer:  0-15 for base layers
+ *              16-31 for overlays
+ */
 uint8_t keymap_key_to_keycode(uint8_t layer, key_t key);
-/* translates keycode to action */
-action_t keymap_keycode_to_action(uint8_t keycode);
 /* translates Fn keycode to action */
 action_t keymap_fn_to_action(uint8_t keycode);
-
-
-
-#ifndef NO_LEGACY_KEYMAP_SUPPORT
+#else
+#warning "You are using LEGACY KEYAMP. Consider using NEW KEYMAP."
+/* 
+ * legacy keymap support
+ */
 /* keycode of key */
 uint8_t keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t col);
 /* layer to move during press Fn key */
diff --git a/common/layer_switch.c b/common/layer_switch.c
new file mode 100644
index 0000000000..19e286f885
--- /dev/null
+++ b/common/layer_switch.c
@@ -0,0 +1,201 @@
+#include <stdint.h>
+#include "keyboard.h"
+#include "action.h"
+#include "debug.h"
+#include "util.h"
+#include "layer_switch.h"
+
+
+/* 
+ * Default Layer (0-15)
+ */
+uint8_t default_layer = 0;
+
+void default_layer_set(uint8_t layer)
+{
+    debug("default_layer_set: ");
+    debug_dec(default_layer); debug(" to ");
+
+    default_layer = layer;
+
+    debug_dec(default_layer); debug("\n");
+
+    clear_keyboard_but_mods(); // To avoid stuck keys
+}
+
+
+/* 
+ * Keymap Layer (0-15)
+ */
+uint16_t keymap_stat = 0;
+
+/* return highest layer whose state is on */
+uint8_t keymap_get_layer(void)
+{
+    return biton16(keymap_stat);
+}
+
+static void keymap_stat_set(uint16_t stat)
+{
+    debug("keymap: ");
+    keymap_debug(); debug(" to ");
+
+    keymap_stat = stat;
+
+    keymap_debug(); debug("\n");
+
+    clear_keyboard_but_mods(); // To avoid stuck keys
+}
+
+void keymap_clear(void)
+{
+    keymap_stat_set(0);
+}
+
+
+void keymap_set(uint16_t stat)
+{
+    keymap_stat_set(stat);
+}
+
+void keymap_move(uint8_t layer)
+{
+    keymap_stat_set(1<<layer);
+}
+
+void keymap_on(uint8_t layer)
+{
+    keymap_stat_set(keymap_stat | (1<<layer));
+}
+
+void keymap_off(uint8_t layer)
+{
+    keymap_stat_set(keymap_stat & ~(1<<layer));
+}
+
+void keymap_invert(uint8_t layer)
+{
+    keymap_stat_set(keymap_stat ^ (1<<layer));
+}
+
+void keymap_or(uint16_t stat)
+{
+    keymap_stat_set(keymap_stat | stat);
+}
+void keymap_and(uint16_t stat)
+{
+    keymap_stat_set(keymap_stat & stat);
+}
+void keymap_xor(uint16_t stat)
+{
+    keymap_stat_set(keymap_stat ^ stat);
+}
+
+void keymap_debug(void)
+{
+    debug_hex16(keymap_stat); debug("("); debug_dec(keymap_get_layer()); debug(")");
+}
+
+
+
+/* 
+ * Overlay Layer (16-31 = 0-15|0x10)
+ */
+uint16_t overlay_stat = 0;
+
+/* return highest layer whose state is on */
+uint8_t overlay_get_layer(void)
+{
+    return biton16(overlay_stat);
+}
+
+static void overlay_stat_set(uint16_t stat)
+{
+    debug("overlay: ");
+    overlay_debug(); debug(" to ");
+
+    overlay_stat = stat;
+
+    overlay_debug(); debug("\n");
+
+    clear_keyboard_but_mods(); // To avoid stuck keys
+}
+
+void overlay_clear(void)
+{
+    overlay_stat_set(0);
+}
+
+
+void overlay_set(uint16_t stat)
+{
+    overlay_stat_set(stat);
+}
+
+void overlay_move(uint8_t layer)
+{
+    overlay_stat_set(1<<layer);
+}
+
+void overlay_on(uint8_t layer)
+{
+    overlay_stat_set(overlay_stat | (1<<layer));
+}
+
+void overlay_off(uint8_t layer)
+{
+    overlay_stat_set(overlay_stat & ~(1<<layer));
+}
+
+void overlay_invert(uint8_t layer)
+{
+    overlay_stat_set(overlay_stat ^ (1<<layer));
+}
+
+void overlay_or(uint16_t stat)
+{
+    overlay_stat_set(overlay_stat | stat);
+}
+void overlay_and(uint16_t stat)
+{
+    overlay_stat_set(overlay_stat & stat);
+}
+void overlay_xor(uint16_t stat)
+{
+    overlay_stat_set(overlay_stat ^ stat);
+}
+
+void overlay_debug(void)
+{
+    debug_hex16(overlay_stat); debug("("); debug_dec(overlay_get_layer()); debug(")");
+}
+
+action_t layer_switch_get_action(key_t key)
+{
+    action_t action;
+    action.code = ACTION_TRANSPARENT;
+
+    /* overlay: top layer first */
+    for (int8_t i = 15; i >= 0; i--) {
+        if (overlay_stat & (1<<i)) {
+            action = action_for_key(i | OVERLAY_BIT, key);
+            if (action.code != ACTION_TRANSPARENT) {
+                return action;
+            }
+        }
+    }
+
+    /* keymap: top layer first */
+    for (int8_t i = 15; i >= 0; i--) {
+        if (keymap_stat & (1<<i)) {
+            action = action_for_key(i, key);
+            if (action.code != ACTION_TRANSPARENT) {
+                return action;
+            }
+        }
+    }
+
+    /* default layer */
+    action = action_for_key(default_layer, key);
+    return action;
+}
diff --git a/common/layer_switch.h b/common/layer_switch.h
new file mode 100644
index 0000000000..a566ab12b7
--- /dev/null
+++ b/common/layer_switch.h
@@ -0,0 +1,80 @@
+/*
+Copyright 2013 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 LAYER_SWITCH_H
+#define LAYER_SWITCH_H
+
+#include <stdint.h>
+#include "keyboard.h"
+#include "action.h"
+
+
+/* overlays are asigned at layer 16-31 */
+#define OVERLAY_BIT      0x10
+#define OVERLAY_MASK     0x0F
+
+
+/*
+ * Default Layer
+ */
+/* base layer to fall back */
+extern uint8_t default_layer;
+void default_layer_set(uint8_t layer);
+
+
+/*
+ * Keymap Layer
+ */
+extern uint16_t keymap_stat;
+/* return current active layer */
+uint8_t keymap_get_layer(void);
+void keymap_clear(void);
+void keymap_set(uint16_t stat);
+void keymap_move(uint8_t layer);
+void keymap_on(uint8_t layer);
+void keymap_off(uint8_t layer);
+void keymap_invert(uint8_t layer);
+/* bitwise operation */
+void keymap_or(uint16_t stat);
+void keymap_and(uint16_t stat);
+void keymap_xor(uint16_t stat);
+void keymap_debug(void);
+
+
+/*
+ * Overlay Layer
+ */
+extern uint16_t overlay_stat;
+/* return current active layer */
+uint8_t overlay_get_layer(void);
+void overlay_clear(void);
+void overlay_set(uint16_t stat);
+void overlay_move(uint8_t layer);
+void overlay_on(uint8_t layer);
+void overlay_off(uint8_t layer);
+void overlay_invert(uint8_t layer);
+/* bitwise operation */
+void overlay_or(uint16_t stat);
+void overlay_and(uint16_t stat);
+void overlay_xor(uint16_t stat);
+void overlay_debug(void);
+
+
+
+/* return action depending on current layer status */
+action_t layer_switch_get_action(key_t key);
+
+#endif
diff --git a/common/util.c b/common/util.c
index 9d8fb93219..ff1926d7d1 100644
--- a/common/util.c
+++ b/common/util.c
@@ -39,6 +39,7 @@ uint8_t bitpop16(uint16_t bits)
 }
 
 // most significant on-bit - return highest location of on-bit
+// NOTE: return 0 when bit0 is on or all bits are off
 uint8_t biton(uint8_t bits)
 {
     uint8_t n = 0;
@@ -47,3 +48,13 @@ uint8_t biton(uint8_t bits)
     if (bits >> 1) { bits >>= 1; n += 1;}
     return n;
 }
+
+uint8_t biton16(uint16_t bits)
+{
+    uint8_t n = 0;
+    if (bits >> 8) { bits >>= 8; n += 8;}
+    if (bits >> 4) { bits >>= 4; n += 4;}
+    if (bits >> 2) { bits >>= 2; n += 2;}
+    if (bits >> 1) { bits >>= 1; n += 1;}
+    return n;
+}
diff --git a/common/util.h b/common/util.h
index c3734487f9..58b7fdf145 100644
--- a/common/util.h
+++ b/common/util.h
@@ -31,5 +31,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 uint8_t bitpop(uint8_t bits);
 uint8_t bitpop16(uint16_t bits);
 uint8_t biton(uint8_t bits);
+uint8_t biton16(uint16_t bits);
 
 #endif
diff --git a/converter/m0110_usb/Makefile.lufa b/converter/m0110_usb/Makefile.lufa
new file mode 100644
index 0000000000..028bdf9331
--- /dev/null
+++ b/converter/m0110_usb/Makefile.lufa
@@ -0,0 +1,91 @@
+# Target file name (without extension).
+TARGET = m0110_lufa
+
+# Directory common source filess exist
+TOP_DIR = ../..
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+# keyboard dependent files
+SRC = 	keymap.c \
+	matrix.c \
+	led.c \
+	m0110.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 = $(F_CPU)
+
+# Interrupt driven control endpoint task
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Build Options
+#   *Comment out* to disable the options.
+#
+MOUSEKEY_ENABLE = yes	# Mouse keys
+#PS2_MOUSE_ENABLE = yes	# PS/2 mouse(TrackPoint) support
+EXTRAKEY_ENABLE = yes	# Audio control and System control
+CONSOLE_ENABLE = yes	# Console for debug
+#NKRO_ENABLE = yes	# USB Nkey Rollover
+
+
+# Boot Section Size in bytes
+#   Teensy halfKay   512
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+OPT_DEFS += -DBOOT_SIZE=4096
+
+
+
+#---------------- Programming Options --------------------------
+PROGRAM_CMD = teensy_loader_cli -mmcu=$(MCU) -w -v $(TARGET).hex
+
+
+# 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
+
+hasu: EXTRAFLAGS += -DHASU
+hasu: all
diff --git a/converter/m0110_usb/README.md b/converter/m0110_usb/README.md
index 206f434251..80503e8755 100644
--- a/converter/m0110_usb/README.md
+++ b/converter/m0110_usb/README.md
@@ -53,7 +53,8 @@ You can edit *Makefile* and *config.h* to change compile options and pin configu
 
     $ git clone git://github.com/tmk/tmk_keyboard.git (or download source)
     $ cd m0110_usb
-    $ make
+    $ make -f Makefile.lufa clean
+    $ make -f Makefile.lufa
 
 and program your Teensy with [PJRC Teensy loader](http://www.pjrc.com/teensy/loader.html).
 
@@ -74,7 +75,7 @@ You can change keymaps by editing *keymap.c*.
     |---------------------------------------------------------| |---------------|
     |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  ,|  /|Shift   | |  1|  2|  3|   |
     `---------------------------------------------------------' |-----------|Ent|
-         |Alt|Gui |         Space               |Ctl |Alt|      |      0|  .|   |
+         |Ctl|Alt |         Space               |Gui |Ctl|      |      0|  .|   |
          `-----------------------------------------------'      `---------------'
 #### *HHKB/WASD Layer(WASD/IJKL)*
     ,---------------------------------------------------------. ,---------------.
@@ -86,7 +87,7 @@ You can change keymaps by editing *keymap.c*.
     |---------------------------------------------------------| |---------------|
     |Shift   |End|   |PgD|   |   |   |PgD|   |End|   |Shift   | |  1|  2|  3|   |
     `---------------------------------------------------------' |-----------|Ent|
-         |Alt|Gui |         Space               |Ctl |Alt|      |      0|  .|   |
+         |Ctl|Alt |         Space               |Gui |Ctl|      |      0|  .|   |
          `-----------------------------------------------'      `---------------'
 
 ### M0110A
diff --git a/converter/m0110_usb/config.h b/converter/m0110_usb/config.h
index be00259e6b..d43f283838 100644
--- a/converter/m0110_usb/config.h
+++ b/converter/m0110_usb/config.h
@@ -24,6 +24,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define VENDOR_ID       0xFEED
 #define PRODUCT_ID      0x0110
+#define DEVICE_VER      0x0100
 #define MANUFACTURER    t.m.k.
 #define PRODUCT         M0110 keyboard converter
 #define DESCRIPTION     convert M0110 keyboard to USB
diff --git a/converter/m0110_usb/keymap.c b/converter/m0110_usb/keymap.c
index 191bf3a156..7a3bc35856 100644
--- a/converter/m0110_usb/keymap.c
+++ b/converter/m0110_usb/keymap.c
@@ -19,7 +19,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <stdint.h>
 #include <stdbool.h>
 #include <avr/pgmspace.h>
-#include "usb_keyboard.h"
 #include "keycode.h"
 #include "print.h"
 #include "debug.h"
@@ -148,7 +147,7 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      * |---------------------------------------------------------| |---------------|
      * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  ,|  /|Shft|Up | |  1|  2|  3|   |
      * |---------------------------------------------------------| |-----------|Ent|
-     * |Alt  |Gui    |         Space         |Ctl|  \|Lft|Rgt|Dn | |      0|  .|   |
+     * |Ctl  |Alt    |         Space         |Gui|  \|Lft|Rgt|Dn | |      0|  .|   |
      * `---------------------------------------------------------' `---------------'
      */
     KEYMAP(
@@ -156,7 +155,7 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,         P7,  P8,  P9,  PMNS,
     FN0, 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,          UP,      P1,  P2,  P3,  PENT,
-    LALT,LGUI,               SPC,                LCTL,BSLS,LEFT,RGHT,DOWN,    P0,       PDOT
+    LCTL,LALT,               SPC,                LGUI,BSLS,LEFT,RGHT,DOWN,    P0,       PDOT
     ),
     /* Cursor Layer(WASD, IJKL)
      * ,---------------------------------------------------------. ,---------------.
@@ -168,7 +167,7 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      * |---------------------------------------------------------| |---------------|
      * |Shift   |End|   |PgD|   |   |   |PgD|   |End|   |Shif|PgU| |  1|  2|  3|   |
      * |---------------------------------------------------------| |-----------|Ent|
-     * |Alt  |Gui    |         Space        |Gui |Ins|Hom|End|PgD| |      0|  .|   |
+     * |Ctl  |Alt    |         Space        |Gui |Ins|Hom|End|PgD| |      0|  .|   |
      * `---------------------------------------------------------' `---------------'
      */
     KEYMAP(
@@ -176,7 +175,7 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     CAPS,HOME,UP,  PGUP,NO,  NO,  NO,  PGUP,UP,  HOME,PSCR,SLCK,PAUS,         P7,  P8,  P9,  PMNS,
     FN0, LEFT,DOWN,RGHT,NO,  NO,  NO,  LEFT,DOWN,RGHT,NO,  NO,       ENT,     P4,  P5,  P6,  PPLS,
     LSFT,END, NO,  PGDN,NO,  NO,  NO,  PGDN,NO,  END, NO,            PGUP,    P1,  P2,  P3,  PENT,
-    LALT,LGUI,               SPC,                LCTL,INS, HOME,END, PGDN,    P0,       PDOT
+    LCTL,LALT,               SPC,                LGUI,INS, HOME,END, PGDN,    P0,       PDOT
     ),
 };
 
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;
+}
diff --git a/converter/sun_usb/config.h b/converter/sun_usb/config.h
index b4f0ff977a..65ce9daf61 100644
--- a/converter/sun_usb/config.h
+++ b/converter/sun_usb/config.h
@@ -43,40 +43,46 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *     asynchronous, negative logic, 1200baud, no flow control
  *     1-start bit, 8-data bit, non parity, 1-stop bit
  */
-#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 { \
+#define SERIAL_SOFT_BAUD            1200
+#define SERIAL_SOFT_PARITY_NONE
+#define SERIAL_SOFT_BIT_ORDER_LSB
+#define SERIAL_SOFT_LOGIC_NEGATIVE
+/* RXD Port */
+#define SERIAL_SOFT_RXD_ENABLE
+#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_VECT        INT2_vect
+/* RXD Interupt */
+#define SERIAL_SOFT_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);                         \
+    SERIAL_SOFT_RXD_DDR &= ~(1<<SERIAL_SOFT_RXD_BIT); \
+    SERIAL_SOFT_RXD_PORT |= (1<<SERIAL_SOFT_RXD_BIT); \
+    /* enable interrupt: INT2(rising edge) */ \
+    EICRA |= ((1<<ISC21)|(1<<ISC20)); \
+    EIMSK |= (1<<INT2); \
+    sei(); \
 } while (0)
-#define SERIAL_RXD_INT_ENTER()
-#define SERIAL_RXD_INT_EXIT() do {  \
-    /* clear interrupt  flag */     \
-    EIFR = (1<<INTF2);              \
+#define SERIAL_SOFT_RXD_INT_ENTER()
+#define SERIAL_SOFT_RXD_INT_EXIT()  do { \
+    /* clear interrupt  flag */ \
+    EIFR = (1<<INTF2); \
 } while (0)
-#define SERIAL_RXD_READ()    (~SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT))
-
-#define SERIAL_TXD_DDR  DDRD
-#define SERIAL_TXD_PORT PORTD
-#define SERIAL_TXD_PIN  PIND
-#define SERIAL_TXD_BIT  3
-/* negative logic */
-#define SERIAL_TXD_ON()     do { SERIAL_TXD_PORT &= ~(1<<SERIAL_TXD_BIT); } while (0)
-#define SERIAL_TXD_OFF()    do { SERIAL_TXD_PORT |=  (1<<SERIAL_TXD_BIT); } while (0)
-#define SERIAL_TXD_INIT()   do { \
-    /* pin configuration: output */         \
-    SERIAL_TXD_DDR |= (1<<SERIAL_TXD_BIT);  \
-    /* idle */                              \
-    SERIAL_TXD_ON();                        \
+#define SERIAL_SOFT_RXD_READ()      (SERIAL_SOFT_RXD_PIN&(1<<SERIAL_SOFT_RXD_BIT))
+/* TXD Port */
+#define SERIAL_SOFT_TXD_ENABLE
+#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)
 
 #endif
diff --git a/doc/keymap.md b/doc/keymap.md
new file mode 100644
index 0000000000..ca48c6e5a8
--- /dev/null
+++ b/doc/keymap.md
@@ -0,0 +1,514 @@
+Keymap framework - how to define your keymap
+============================================
+***NOTE: This is not final version, may be inconsistent with source code and changed occasionally for a while.***
+
+## 0. Keymap and layers
+**Keymap** is comprised of multiple layers of key layout, you can define **16** layers at most.
+**Layer** is an array of **keycodes** to define **actions** on each physical keys.
+respective layers can be validated simultaneously. Layers are indexed with 0 to 15 and higher layer has precedence.
+
+    Keymap with 16 Layers               Layer: array of Keycodes
+    ---------------------               ------------------------
+          stack of layers               content of layer
+           ____________ precedence               _______________________
+          /           / | high                  / ESC / F1  / F2  / F3   ....
+      15 /___________// |                      /-----/-----/-----/-----
+      14 /___________// |                     / TAB /     /     /      ....
+      13 /___________/_ |                    /-----/-----/-----/-----
+       :  / : : : : : / |                   /LCtrl/     /     /      ....
+       3 /___________// |               :  /  :     :     :     :
+       2 /___________// |               2 `--------------------------
+       1 /___________// |               1 `--------------------------
+       0 /___________/  V low           0 `--------------------------
+
+
+
+### 0.1 Keymap status
+Keymap has its state in two parameters:
+**`default_layer`** indicates a base keymap layer(0-15) which is always valid and to be referred, **`keymap_stat`** is 16bit variable which has current on/off status of layers on its each bit.
+
+Keymap layer '0' is usually `default_layer` and which is the only valid layer and other layers is initially off after boot up firmware, though, you can configured them in `config.h`.
+To change `default_layer` will be useful when you want to switch key layout completely, say you use Colmak instead of Qwerty.
+
+    Initial state of Keymap         Change base layout              
+    -----------------------         ------------------              
+                                                                    
+      15                              15                            
+      14                              14                            
+      13                              13                            
+       :                               :                            
+       3                               3   ____________             
+       2   ____________                2  /           /             
+       1  /           /             ,->1 /___________/              
+    ,->0 /___________/              |  0                            
+    |                               |                               
+    `--- default_layer = 0          `--- default_layer = 1          
+         keymap_stat   = 0x0001          keymap_stat   = 0x0002     
+
+On the other hand, you shall change `keymap_state` to overlay base layer with some layers for feature such as navigation keys, function key(F1-F12), media keys or special actions.
+
+    Overlay feature layer
+    ---------------------      bit|status
+           ____________        ---+------
+      15  /           /        15 |   0
+      14 /___________// -----> 14 |   1
+      13 /___________/  -----> 13 |   1
+       :                        : |   
+       3   ____________         3 |   0
+       2  /           /         2 |   0
+    ,->1 /___________/  ----->  1 |   1
+    |  0                        0 |   0
+    |                                 |
+    `--- default_layer = 1            |
+         keymap_stat   = 0x6002 <-----'
+
+
+
+### 0.2 Layer Precedence and Transparency
+Note that ***higher layer has higher priority on stack of layers***, namely firmware falls down from top layer to bottom to look up keycode. Once it spots keycode other than **`KC_TRNS`**(transparent) on a layer it stops searching and lower layers aren't referred.
+
+You can place `KC_TRNS` on overlay layer changes just part of layout to fall back on lower or base layer.
+Key with `KC_TRANS` doen't has its own keycode and refers to lower valid layers for keycode, instead.
+See example below.
+
+
+### 0.3 Keymap Example
+Keymap is **`keymaps[]`** C array in fact and you can define layers in it with **`KEYMAP()`** C macro and keycodes. To use complex actions you need to define `Fn` keycode in **`fn_actions[]`** array.
+
+This is a keymap example for [HHKB](http://en.wikipedia.org/wiki/Happy_Hacking_Keyboard) keyboard.
+This example has three layers, 'Qwerty' as base layer, 'Cursor' and  'Mousekey'.
+In this example,
+
+ `Fn0` is a **momentary layer switching** key, you can use keys on Cursor layer while holding the key.
+
+ `Fn1` is a momentary layer switching key with tapping feature, you can get semicolon **';'** with taping the key and switch layers while holding the key. The word **'tap'** or **'tapping'** mean to press and release a key quickly.
+
+ `Fn2` is a **toggle layer switch** key, you can stay switched layer after releasing the key unlike momentary switching.
+
+You can find other keymap definitions in file `keymap.c` located on project directories.
+
+    static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+        /* 0: Qwerty
+         * ,-----------------------------------------------------------.
+         * |Esc|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|  \|  `|
+         * |-----------------------------------------------------------|
+         * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|Backs|
+         * |-----------------------------------------------------------|
+         * |Contro|  A|  S|  D|  F|  G|  H|  J|  K|  L|Fn1|  '|Enter   |
+         * |-----------------------------------------------------------|
+         * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift |Fn0|
+         * `-----------------------------------------------------------'
+         *       |Gui|Alt  |Space                  |Alt  |Fn2|
+         *       `-------------------------------------------'
+         */
+        KEYMAP(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, SLSH,RSFT,FN0, \
+                    LGUI,LALT,          SPC,                RALT,FN2),
+        /* 1: Cursor(HHKB mode)
+         * ,-----------------------------------------------------------.
+         * |Pwr| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del|
+         * |-----------------------------------------------------------|
+         * |Caps |   |   |   |   |   |   |   |Psc|Slk|Pus|Up |   |Backs|
+         * |-----------------------------------------------------------|
+         * |Contro|VoD|VoU|Mut|   |   |  *|  /|Hom|PgU|Lef|Rig|Enter   |
+         * |-----------------------------------------------------------|
+         * |Shift   |   |   |   |   |   |  +|  -|End|PgD|Dow|Shift |   |
+         * `-----------------------------------------------------------'
+         *      |Gui |Alt  |Space                  |Alt  |Gui|
+         *      `--------------------------------------------'
+         */ 
+        KEYMAP(PWR, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL, \
+               CAPS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,PSCR,SLCK,PAUS,UP,  TRNS,BSPC, \
+               LCTL,VOLD,VOLU,MUTE,TRNS,TRNS,PAST,PSLS,HOME,PGUP,LEFT,RGHT,ENT, \
+               LSFT,TRNS,TRNS,TRNS,TRNS,TRNS,PPLS,PMNS,END, PGDN,DOWN,RSFT,TRNS, \
+                    LGUI,LALT,          SPC,                RALT,RGUI),
+        /* 2: Mousekey
+         * ,-----------------------------------------------------------.
+         * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del|
+         * |-----------------------------------------------------------|
+         * |Tab  |   |   |   |   |   |MwL|MwD|MwU|MwR|   |   |   |Backs|
+         * |-----------------------------------------------------------|
+         * |Contro|   |   |   |   |   |McL|McD|McU|McR|   |   |Return  |
+         * |-----------------------------------------------------------|
+         * |Shift   |   |   |   |   |Mb3|Mb2|Mb1|Mb4|Mb5|   |Shift |   |
+         * `-----------------------------------------------------------'
+         *      |Gui |Alt  |Mb1                    |Alt  |   |
+         *      `--------------------------------------------'
+         * Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel 
+         */
+        KEYMAP(ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL, \
+               TAB, TRNS,TRNS,TRNS,TRNS,TRNS,WH_L,WH_D,WH_U,WH_R,TRNS,TRNS,TRNS,BSPC, \
+               LCTL,TRNS,ACL0,ACL1,ACL2,TRNS,MS_L,MS_D,MS_U,MS_R,TRNS,QUOT,ENT, \
+               LSFT,TRNS,TRNS,TRNS,TRNS,BTN3,BTN2,BTN1,BTN4,BTN5,SLSH,RSFT,TRNS, \
+                    LGUI,LALT,          BTN1,               RALT,TRNS),
+    };
+
+    static const uint16_t PROGMEM fn_actions[] = {
+        ACTION_KEYMAP_MOMENTARY(1),                  // FN0
+        ACTION_KEYMAP_TAP_KEY(2, KC_SCLN),           // FN1
+        ACTION_KEYMAP_TOGGLE(2),                     // FN2
+    };
+
+
+
+
+## 1. Keycode
+See [`common/keycode.h`](../common/keycode.h) or keycode table below for the detail. Keycode is internal **8bit code** to inidicate action performed on key in keymap. Keycode has `KC_` prefixed symbol respectively. Most of keycodes like `KC_A` have simple action registers key to host on press and unregister on release, while some of other keycodes has some special actions like `Fn` keys, Media contorl keys, System control keys and Mousekeys.
+
+ ***In `KEYMAP()` macro you should omit prefix part `KC_` of keycode to keep keymap compact.*** For example, just use `A` instead you place `KC_A` in `KEYMAP()`. Some keycodes has 4-letter **short name** in addition to descriptive name, you'll prefer short one in `KEYMAP()`.
+
+### 1.0 Other key
+- `KC_NO` for no aciton
+- `KC_TRNS` for layer transparency (See above)
+
+### 1.1 Normal key
+- `KC_A` to `KC_Z`, `KC_1` to `KC_0` for alpha numeric key
+- `KC_MINS`, `KC_EQL`, `KC_GRV`, `KC_RBRC`, `KC_LBRC`, `KC_COMM`, `KC_DOT`, `KC_BSLS`, `KC_SLSH`, `KC_SCLN`, `KC_QUOT`
+- `KC_ESC`, `KC_TAB`, `KC_SPC`, `KC_BSPC`, `KC_ENT`, `KC_DEL`, `KC_INS`
+- `KC_UP`, `KC_DOWN`, `KC_RGHT`, `KC_LEFT`, `KC_PGUP`, `KC_PGDN`, `KC_HOME`, `KC_END`
+- `KC_CAPS`, `KC_NLCK`, `KC_SLCK`, `KC_PSCR`, `KC_PAUS`, `KC_APP`, `KC_F1` to `KC_F24`
+- `KC_P1` to `KC_P0`, `KC_PDOT`, `KC_PCMM`, `KC_PSLS`, `KC_PAST`, `KC_PMNS`, `KC_PPLS`, `KC_PEQL`, `KC_PENT` for keypad.
+
+### 1.2 Modifier
+There are 8 modifiers which has discrimination between left and right. 
+
+- `KC_LCTL` and `KC_RCTL` for Control
+- `KC_LSFT` and `KC_RSFT` for Shift
+- `KC_LALT` and `KC_RALT` for Alt
+- `KC_LGUI` and `KC_RGUI` for Windows key or Command key in Mac
+
+### 1.3 Mousekey
+- `KC_MS_U`, `KC_MS_D`, `KC_MS_L`, `KC_MS_R` for mouse cursor
+- `KC_WH_U`, `KC_WH_D`, `KC_WH_L`, `KC_WH_R` for mouse wheel
+- `KC_BTN1`, `KC_BTN2`, `KC_BTN3`, `KC_BTN4`, `KC_BTN5` for mouse buttons
+
+### 1.4 System & Media key
+- `KC_PWR`, `KC_SLEP`, `KC_WAKE` for Power, Sleep, Wake
+- `KC_MUTE`, `KC_VOLU`, `KC_VOLD` for audio volume control
+- `KC_MNXT`, `KC_MPRV`, `KC_MSTP`, `KC_MPLY`, `KC_MSEL` for media control
+- `KC_MAIL`, `KC_CALC`, `KC_MYCM` for application launch
+- `KC_WSCH`, `KC_WHOM`, `KC_WBAK`, `KC_WFWD`, `KC_WSTP`, `KC_WREF`, `KC_WFAV` for web browser operation
+
+### 1.5 Fn key
+`KC_FNnn` are keycodes for `Fn` key which not given any actions at the beginning unlike most of keycodes has its own inborn action. To use these keycodes in `KEYMAP` you need to assign action you want at first. Action of `Fn` key is defined in `fn_actions[]` and its index of the array is identical with number part of `KC_FNnn`. Thus `KC_FN0` keyocde indicates the action defined in first element of the array. ***32 `Fn` keys can be defined at most.***
+
+### 1.6 Keycode Table
+ See keycode table in [`doc/keycode.txt`](./keycode.txt) for description of keycodes.
+
+ In regard to implementation side most of keycodes are identical with [HID usage][HID_usage](pdf) sent to host for real and some virtual keycodes are defined to support special actions.
+[HID_usage]: http://www.usb.org/developers/devclass_docs/Hut1_11.pdf
+
+
+
+## 2. Action
+See [`common/action.h`](../common/action.h). Action is a **16bit code** and defines function to perform on events of a key like press, release, holding and tapping.
+
+Most of keys just register 8bit scancode to host, but to support other complex features needs 16bit extended action codes internally. However, using 16bit action codes in keymap results in double size in memory against using jsut keycodes. To avoid this waste 8bit keycodes are used in `KEYMAP` instead of action codes.
+
+***You can just use keycodes of `Normal key`, `Modifier`, `Mousekey` and `System & Media key` in keymap*** to indicate corresponding actions instead of using action codes. While ***to use other special actions you should use keycode of `Fn` key defined in `fn_actions[]`.***
+
+Usually action codes are needed only when you want to use layer switching, or 
+
+### 2.1 Key action
+This is a simple action that registers scancodes(HID usage in fact) to host on press event of key and unregister on release.
+
+#### 2.1.1 Normal key and Modifier
+This action usually won't be used expressly because you can use keycodes in `KEYMAP()` instead.
+You can define `Key` action on *'A'* key and *'left shift'* modifier with:
+
+    ACTION_KEY(KC_A)
+    ACTION_KEY(KC_LSHIFT)
+
+#### 2.1.2 Key with modifiers
+This action is comprised of strokes of modifiers and a key. `Macro` action is needed if you want more complex key strokes.
+Say you want to assign a key to `Shift + 1` to get charactor *'!'* or `Alt + Tab` to switch application windows.
+
+    ACTION_LMOD_KEY(KC_LSHIFT, KC_1)
+    ACTION_LMOD_KEY(KC_LALT, KC_TAB)
+
+Or `Alt,Shift + Tab` can be defined. `ACTION_LMODS_KEY()` requires **4-bit modifier state** and a **keycode** as arguments. See `keycode.h` for `MOD_BIT()` macro.
+
+    ACTION_LMODS_KEY((MOD_BIT(KC_LALT) | MOD_BIT(KC_LSHIFT)), KC_TAB)
+
+
+
+### 2.2 Layer Action
+These actions operate layers of keymap.
+
+Parameters:
+- layer: 0-15
+- on: { press | release | both }
+
+
+#### 2.2.0 Default Layer
+`default_layer` is layer which always is valid and referred to when actions is not defined on other layers.
+
+##### Return to Default Layer
+Turns on only `default layer` with clearing other all layers.
+
+    ACTION_DEFAULT_LAYER
+
+##### Set Default Layer
+Sets 'default layer' to layer and turn it on.
+
+    ACTION_DEFAULT_LAYER_SET_TO(layer)
+    ACTION_DEFAULT_LAYER_SET(layer, on)
+
+
+#### 2.2.1 Keymap
+These actions operate layer status of keymap.
+
+##### Momentary Switch
+Turns on layer momentary while holding, in other words turn on when key is pressed and off when released.
+
+    ACTION_KEYMAP_MOMENTARY(layer)
+
+
+##### Toggle Switch
+Turns on layer on first type and turns off on next.
+
+    ACTION_KEYMAP_TOGGLE(layer)
+
+
+##### Momentary Switch with tap key
+Turns on layer momentary while holding but registers key on tap.
+
+    ACTION_KEYMAP_TAP_KEY(layer, key)
+
+
+##### Momentary Switch with tap toggle
+Turns on layer momentary while holding but toggles it with serial taps.
+
+    ACTION_KEYMAP_TAP_TOGGLE(layer)
+
+
+##### Invert layer
+Inverts current layer state. If the layer is on it becomes off with this action.
+
+    ACTION_KEYMAP_INV(layer, on)
+
+
+##### Turn On layer
+Turns on layer state.
+
+    ACTION_KEYMAP_ON(layer, on)
+
+Turns on layer state on press and turn off on release. This is identical to **'Switch to layer'** action.
+
+    ACTION_KEYMAP_ON_OFF(layer)
+
+
+##### Turn Off layer
+Turns off layer state.
+
+    ACTION_KEYMAP_OFF(layer, on)
+
+
+##### Set layer
+Turn on layer only.
+`keymap_stat = (1<<layer) [layer: 0-15]`
+
+    ACTION_KEYMAP_SET(layer, on)
+
+Turns on layer only and clear all layer on release..
+
+    ACTION_KEYMAP_SET_CLEAR(layer)
+
+
+#### 2.2.2 Overlay
+***TBD***
+
+In addition to actions of `Keymap` above these actions are also available.
+
+##### Invert 4bit layer states
+Invert 4bits out of 16bits of overlay status on both press and release.
+`overlay_stat = (overlay_stat ^ bits<<(shift*4)) [bits: 0-15, shift: 0-3]`
+
+    ACTION_OVERLAY_INV4(bits, shift)
+
+
+
+### 2.3 Macro action
+***TBD***
+
+`Macro` action indicates complex key strokes.
+ 
+    MACRO( MD(LSHIFT), D(D), END )
+    MACRO( U(D), MU(LSHIFT), END )
+    MACRO( I(255), T(H), T(E), T(L), T(L), W(255), T(O), END )
+
+#### 2.3.1 Normal mode
+- **I()**   change interavl of stroke.
+- **D()**   press key
+- **U()**   release key
+- **T()**   type key(press and release)
+- **W()**   wait
+- **MD()**  modifier down
+- **MU()**  modifier up
+- **END**   end mark
+
+#### 2.3.2 Extended mode
+
+***TODO: sample impl***
+See `keyboard/hhkb/keymap.c` for sample.
+
+
+### 2.4 Function action
+***TBD***
+
+There are two type of action, normal `Function` and tappable `Function`.
+These actions call user defined function with `id`, `opt`, and key event information as arguments.
+
+#### 2.4.1 Function
+To define normal `Function` action in keymap use this.
+
+    ACTION_FUNCTION(id, opt)
+
+#### 2.4.2 Function with tap
+To define tappable `Function` action in keymap use this.
+
+    ACTION_FUNCTION_TAP(id, opt)
+
+#### 2.4.3 Implement user function
+`Function` actions can be defined freely with C by user in callback function:
+
+    void keymap_call_function(keyrecord_t *event, uint8_t id, uint8_t opt)
+
+This C function is called every time key is operated, argument `id` selects action to be performed and `opt` can be used for option. Functon `id` can be 0-255 and `opt` can be 0-15.
+
+ `keyrecord_t` is comprised of key event and tap count. `keyevent_t` indicates which and when key is pressed or released. From `tap_count` you can know tap state, 0 means no tap. These information will be used in user function to decide how action of key is performed.
+
+    typedef struct {
+        keyevent_t  event;
+        uint8_t     tap_count;
+    } keyrecord_t;
+
+    typedef struct {
+        key_t    key;
+        bool     pressed;
+        uint16_t time;
+    } keyevent_t;
+
+    typedef struct {
+        uint8_t col;
+        uint8_t row;
+    } key_t;
+
+***TODO: sample impl***
+See `keyboard/hhkb/keymap.c` for sample.
+
+
+
+
+
+## 4. Layer switching Example
+There are some ways to switch layer with 'Layer' actions.
+
+### 4.1 Momentary switching
+Momentary switching changes layer only while holding Fn key.
+
+This action makes 'Layer 1' active(valid) on key press event and inactive on release event. Namely you can overlay a layer on base layer temporarily with this.
+
+    ACTION_KEYMAP_MOMENTARY(1)
+
+
+After switch actions of destination layer are perfomed.
+***Thus you shall need to place action to come back on destination layer***, or you will be stuck in destination layer without way to get back. Usually you need to palce same action or 'KC_TRNS` on destination layer to get back.
+
+
+### 4.2 Toggle switching
+Toggle switching changes layer after press then release. With this you can keep staying on the layer until you press the key again to return.
+
+This is toggle action of 'Layer 2'.
+
+    ACTION_KEYMAP_TOGGLE(2)
+
+
+
+### 4.3 Momentary switching with Tap key
+These actions switch layer only while holding `Fn` key and register key on tap. **Tap** means to press and release key quickly.
+
+    ACTION_KEYMAP_TAP_KEY(2, KC_SCLN)
+
+With this you can place layer switching function on normal key like ';' without losing its original key register function.
+
+
+
+### 4.4 Momentary switching with Tap Toggle
+This switches layer only while holding `Fn` key and toggle layer after several taps. **Tap** means to press and release key quickly.
+
+    ACTION_KEYMAP_TAP_TOGGLE(1)
+
+Number of taps can be defined with `TAPPING_TOGGLE` in `config.h`, `5` by default.
+
+
+
+## Tapping
+Tapping is to press and release key quickly. Tapping speed is determined with setting of `TAPPING_TERM`, which can be defined in `config.h`, 200ms by default.
+
+### Tap Key
+This is feature to assign normal key action and modifier including `Fn` to just one physical key. This is a kind of [Dual role modifier][dual_role]. It works as modifier or `Fn` when holding a key but registers normal key when tapping.
+
+Action for modifier with tap key.
+
+    ACTION_LMODS_TAP_KEY(mods, key)
+
+Action for `Fn` with tap key.
+
+    ACTION_KEYMAP_TAP_KEY(layer, key)
+
+[dual_role]: http://en.wikipedia.org/wiki/Modifier_key#Dual-role_modifier_keys
+
+
+### Tap Toggle
+This is feature to assign both toggle layer and momentary switch layer action to just one physical key. It works as mementary switch when holding a key but toggle switch when tapping.
+
+    ACTION_KEYMAP_TAP_TOGGLE(layer)
+
+
+### One Shot Modifier
+This adds oneshot feature to modifier key. 'One Shot Modifier' is one time modifier which has effect only on following one alpha key.
+It works as normal modifier key when holding but oneshot modifier when tapping.
+
+    ACTION_LMODS_ONESHOT(mods)
+
+Say you want to type 'The', you have to push and hold Shift before type 't' then release Shift before type 'h' and 'e' or you'll get 'THe'. With One Shot Modifier you can tap Shift then type 't', 'h' and 'e' normally, you don't need to holding Shift key properly  here.
+
+
+
+
+## Legacy Keymap
+This was used in prior version and still works due to legacy support code in `common/keymap.c`. Legacy keymap doesn't support many of features that new keymap offers.
+
+In comparison with new keymap how to define Fn key is different. It uses two arrays `fn_layer[]` and `fn_keycode[]`. The index of arrays corresponds with postfix number of `Fn` key. Array `fn_layer[]` indicates destination layer to switch and `fn_keycode[]` has keycodes to send when tapping `Fn` key.
+
+In following setting example, `Fn0`, `Fn1` and `Fn2` switch layer to 1, 2 and 2 respectively. `Fn2` registers `Space` key when tap while `Fn0` and `Fn1` doesn't send any key.
+
+    static const uint8_t PROGMEM fn_layer[] = {
+        1,              // Fn0
+        2,              // Fn1
+        2,              // Fn2
+    };
+
+    static const uint8_t PROGMEM fn_keycode[] = {
+        KC_NO,          // Fn0
+        KC_NO,          // Fn1
+        KC_SPC,         // Fn2
+    };
+
+
+## Terminology
+- keymap
+- layer
+- layout
+- key
+- keycode
+- scancode
+- action
+- layer transparency
+- layer precedence
+- register
+- tap
+- Fn key
diff --git a/keyboard/IIgs_Standard/Makefile b/keyboard/IIgs/Makefile
index c18e9720c7..c18e9720c7 100644
--- a/keyboard/IIgs_Standard/Makefile
+++ b/keyboard/IIgs/Makefile
diff --git a/keyboard/IIgs_Standard/README b/keyboard/IIgs/README
index 4f9cad1ca1..4f9cad1ca1 100644
--- a/keyboard/IIgs_Standard/README
+++ b/keyboard/IIgs/README
diff --git a/keyboard/IIgs_Standard/config.h b/keyboard/IIgs/config.h
index 11acf87c07..11acf87c07 100644
--- a/keyboard/IIgs_Standard/config.h
+++ b/keyboard/IIgs/config.h
diff --git a/keyboard/IIgs_Standard/doc/PIN_BYPASS.jpg b/keyboard/IIgs/doc/PIN_BYPASS.jpg
index 2998f0c3f8..2998f0c3f8 100644
--- a/keyboard/IIgs_Standard/doc/PIN_BYPASS.jpg
+++ b/keyboard/IIgs/doc/PIN_BYPASS.jpg
diff --git a/keyboard/IIgs_Standard/doc/Teensy++_Mod.jpg b/keyboard/IIgs/doc/Teensy++_Mod.jpg
index 146c1ab93c..146c1ab93c 100644
--- a/keyboard/IIgs_Standard/doc/Teensy++_Mod.jpg
+++ b/keyboard/IIgs/doc/Teensy++_Mod.jpg
diff --git a/keyboard/IIgs_Standard/hid_listen.mac b/keyboard/IIgs/hid_listen.mac
index 8758fdf886..8758fdf886 100755
--- a/keyboard/IIgs_Standard/hid_listen.mac
+++ b/keyboard/IIgs/hid_listen.mac
diff --git a/keyboard/IIgs_Standard/keymap.c b/keyboard/IIgs/keymap.c
index cd33e223ac..cd33e223ac 100644
--- a/keyboard/IIgs_Standard/keymap.c
+++ b/keyboard/IIgs/keymap.c
diff --git a/keyboard/IIgs_Standard/led.c b/keyboard/IIgs/led.c
index f76545f0ba..f76545f0ba 100644
--- a/keyboard/IIgs_Standard/led.c
+++ b/keyboard/IIgs/led.c
diff --git a/keyboard/IIgs_Standard/matrix.c b/keyboard/IIgs/matrix.c
index 6ca55b7ea2..6ca55b7ea2 100644
--- a/keyboard/IIgs_Standard/matrix.c
+++ b/keyboard/IIgs/matrix.c
diff --git a/keyboard/gh60/Makefile.lufa b/keyboard/gh60/Makefile.lufa
index c8d3fa4943..7a83032969 100644
--- a/keyboard/gh60/Makefile.lufa
+++ b/keyboard/gh60/Makefile.lufa
@@ -124,3 +124,9 @@ plain: all
 
 poker: OPT_DEFS += -DKEYMAP_POKER
 poker: all
+
+poker_set: OPT_DEFS += -DKEYMAP_POKER_SET
+poker_set: all
+
+poker_bit: OPT_DEFS += -DKEYMAP_POKER_BIT
+poker_bit: all
diff --git a/keyboard/gh60/Makefile.pjrc b/keyboard/gh60/Makefile.pjrc
index f253704faa..af6ef63ec4 100644
--- a/keyboard/gh60/Makefile.pjrc
+++ b/keyboard/gh60/Makefile.pjrc
@@ -94,3 +94,9 @@ plain: all
 
 poker: OPT_DEFS += -DKEYMAP_POKER
 poker: all
+
+poker_set: OPT_DEFS += -DKEYMAP_POKER_SET
+poker_set: all
+
+poker_bit: OPT_DEFS += -DKEYMAP_POKER_BIT
+poker_bit: all
diff --git a/keyboard/gh60/README.md b/keyboard/gh60/README.md
index 405ab3dffc..4dc4e5ee2e 100644
--- a/keyboard/gh60/README.md
+++ b/keyboard/gh60/README.md
@@ -47,9 +47,10 @@ See [keymap_plain.h](keymap_plain.h) for detail.
     `-----------------------------------------------------------'
 
 ### 2  Poker keymap
-Poker layer emulation without Esc/grave bug :)
 
-See [keymap_poker.h](keymap_poker.h) for detail.
+See [keymap_poker.h](keymap_poker.h) for Poker layer emulation, [keymap_poker_bit.h](keymap_poker_bit.h) and [keymap_poker_set.h](keymap_poker_set.h) for better support of Esc and arrow.
+
+ These keymap supports Colemak, Dvorak and Workmans, use `Magic` + {`1`, `2`, `3`} to switch and `Magic` + `0` to return to Qwerty.
 
 #### 2.0 Poker Default Layer
     ,-----------------------------------------------------------.
@@ -108,7 +109,7 @@ See [keymap_poker.h](keymap_poker.h) for detail.
 ### 3. Funky keymap
 This is my keymap(default) with HHKB, Vi cursor and Mousekey layer.
 
-See [keymap.h](keymap.h) for detail.
+See [keymap.c](keymap.c) for detail.
 
 #### 3.0 Funky Default Layer
     ,-----------------------------------------------------------.
diff --git a/keyboard/gh60/config.h b/keyboard/gh60/config.h
index a760d5dfb3..ef0c9a1735 100644
--- a/keyboard/gh60/config.h
+++ b/keyboard/gh60/config.h
@@ -41,6 +41,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* Set 0 if need no debouncing */
 #define DEBOUNCE    5
 
+/* To use new keymap framework */
+#define USE_KEYMAP_V2
 
 /* key combination for command */
 #define IS_COMMAND() ( \
diff --git a/keyboard/gh60/keymap.c b/keyboard/gh60/keymap.c
index a17c11fc3b..1f5344d4c6 100644
--- a/keyboard/gh60/keymap.c
+++ b/keyboard/gh60/keymap.c
@@ -20,6 +20,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "keycode.h"
 #include "action.h"
 #include "action_macro.h"
+#include "layer_switch.h"
 #include "report.h"
 #include "host.h"
 #include "print.h"
@@ -64,12 +65,16 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     #include "keymap_plain.h"
 #elif defined(KEYMAP_POKER)
     #include "keymap_poker.h"
+#elif defined(KEYMAP_POKER_SET)
+    #include "keymap_poker_set.h"
+#elif defined(KEYMAP_POKER_BIT)
+    #include "keymap_poker_bit.h"
 #else
 static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     /*
      * Funky
      */
-    /* Layer 0: Default Layer
+    /* Keymap 0: Default Layer
      * ,-----------------------------------------------------------.
      * |Esc|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backsp |
      * |-----------------------------------------------------------|
@@ -85,10 +90,32 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     KEYMAP_ANSI(
         ESC, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC, \
         TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSLS, \
-        LCTL,A,   S,   D,   F,   G,   H,   J,   K,   L,   FN3, QUOT,     ENT,  \
-        LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, FN2,           RSFT, \
-        LCTL,LGUI,LALT,          SPC,                     RALT,FN4, FN4, FN1),
-    /* Layer 1: HHKB mode
+        LCTL,A,   S,   D,   F,   G,   H,   J,   K,   L,   FN2, QUOT,     ENT,  \
+        LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, FN1,           RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     RALT,FN3, FN3, FN0),
+    /* Keymap 1: colemak */
+    KEYMAP_ANSI(
+        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC, \
+        TAB, Q,   W,   F,   P,   G,   J,   L,   U,   Y,   SCLN,LBRC,RBRC,BSLS, \
+        BSPC,A,   R,   S,   T,   D,   H,   N,   E,   I,   O,   QUOT,     ENT,  \
+        LSFT,Z,   X,   C,   V,   B,   K,   M,   COMM,DOT, SLSH,          RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, FN0),
+    /* Keymap 2: dvorak */
+    KEYMAP_ANSI(
+        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   LBRC,RBRC,BSPC, \
+        TAB, QUOT,COMM,DOT, P,   Y,   F,   G,   C,   R,   L,   SLSH,EQL, BSLS, \
+        CAPS,A,   O,   E,   U,   I,   D,   H,   T,   N,   S,   MINS,     ENT,  \
+        LSFT,SCLN,Q,   J,   K,   X,   B,   M,   W,   V,   Z,             RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, FN0),
+    /* Keymap 3: workman */
+    KEYMAP_ANSI(
+        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC, \
+        TAB, Q,   D,   R,   W,   B,   J,   F,   U,   P,   SCLN,LBRC,RBRC,BSLS, \
+        BSPC,A,   S,   H,   T,   G,   Y,   N,   E,   O,   I,   QUOT,     ENT,  \
+        LSFT,Z,   X,   M,   C,   V,   K,   L,   COMM,DOT, SLSH,          RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, FN0),
+
+    /* Overlay 4: HHKB mode
      * ,-----------------------------------------------------------.
      * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Delete |
      * |-----------------------------------------------------------|
@@ -98,16 +125,16 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      * |-----------------------------------------------------------|
      * |Shift   |   |   |   |   |   |  +|  -|End|PgD|Dow|Shift     |
      * |-----------------------------------------------------------|
-     * |Ctrl|Gui |Alt |      Space             |Alt |Gui |App |Fn0 |
+     * |Ctrl|Gui |Alt |      Space             |Alt |Gui |App |    |
      * `-----------------------------------------------------------'
      */
     KEYMAP_ANSI(
-        PWR, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, DEL,  \
-        CAPS,NO,  NO,  NO,  NO,  NO,  NO,  NO,  PSCR,SLCK,PAUS,UP,  NO,  INS,  \
-        LCTL,VOLD,VOLU,MUTE,NO,  NO,  PAST,PSLS,HOME,PGUP,LEFT,RGHT,     ENT,  \
-        LSFT,NO,  NO,  NO,  NO,  NO,  PPLS,PMNS,END, PGDN,DOWN,          RSFT, \
-        LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, FN0),
-    /* Layer 2: Vi mode (Slash)
+        GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, DEL,  \
+        CAPS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,PSCR,SLCK,PAUS,UP,  TRNS,INS,  \
+        LCTL,VOLD,VOLU,MUTE,TRNS,TRNS,PAST,PSLS,HOME,PGUP,LEFT,RGHT,     ENT,  \
+        LSFT,TRNS,TRNS,TRNS,TRNS,TRNS,PPLS,PMNS,END, PGDN,DOWN,          RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,FN4, TRNS),
+    /* Overlay 5: Vi mode (Slash)
      * ,-----------------------------------------------------------.
      * |  `| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Backsp |
      * |-----------------------------------------------------------|
@@ -115,79 +142,119 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      * |-----------------------------------------------------------|
      * |Contro|   |Lef|Dow|Rig|   |Lef|Dow|Up |Rig|   |   |Return  |
      * |-----------------------------------------------------------|
-     * |Shift   |   |   |   |   |   |Hom|PgD|PgU|End|Fn0|Shift     |
+     * |Shift   |   |   |   |   |   |Hom|PgD|PgU|End|   |Shift     |
      * |-----------------------------------------------------------|
      * |Ctrl|Gui |Alt |      Space             |Alt |Gui |App |Ctrl|
      * `-----------------------------------------------------------'
      */
     KEYMAP_ANSI(
         GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, BSPC, \
-        TAB, HOME,PGDN,UP,  PGUP,END, HOME,PGDN,PGUP,END, NO,  NO,  NO,  NO,   \
-        LCTL,NO,  LEFT,DOWN,RGHT,NO,  LEFT,DOWN,UP,  RGHT,NO,  NO,       ENT,  \
-        LSFT,NO,  NO,  NO,  NO,  NO,  HOME,PGDN,PGUP,END, FN0,           RSFT, \
+        TAB, HOME,PGDN,UP,  PGUP,END, HOME,PGDN,PGUP,END, TRNS,TRNS,TRNS,TRNS, \
+        LCTL,TRNS,LEFT,DOWN,RGHT,TRNS,LEFT,DOWN,UP,  RGHT,TRNS,TRNS,     ENT,  \
+        LSFT,TRNS,TRNS,TRNS,TRNS,TRNS,HOME,PGDN,PGUP,END, TRNS,          RSFT, \
         LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, RCTL),
-    /* Layer 3: Mouse mode (Semicolon/App)
+    /* Overlay 6: Mouse mode (Semicolon/App)
      * ,-----------------------------------------------------------.
      * |  `| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Backsp |
      * |-----------------------------------------------------------|
      * |Tab  |   |   |   |   |   |MwL|MwD|MwU|MwR|   |   |   |     |
      * |-----------------------------------------------------------|
-     * |Contro|   |Ac0|Ac1|Ac1|   |McL|McD|McU|McR|Fn0|   |Return  |
+     * |Contro|   |Ac0|Ac1|Ac1|   |McL|McD|McU|McR|   |   |Return  |
      * |-----------------------------------------------------------|
      * |Shift   |   |   |   |   |Mb3|Mb2|Mb1|Mb4|Mb5|   |Shift     |
      * |-----------------------------------------------------------|
-     * |Ctrl|Gui |Alt |      Space             |    |Fn0 |Fn0 |    |
+     * |Ctrl|Gui |Alt |      Space             |    |    |    |    |
      * `-----------------------------------------------------------'
      * Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel
      */
     KEYMAP_ANSI(
         GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, BSPC, \
-        TAB, NO,  NO,  NO,  NO,  NO,  WH_L,WH_D,WH_U,WH_R,NO,  NO,  NO,  NO,   \
-        LCTL,NO,  ACL0,ACL1,ACL2,NO,  MS_L,MS_D,MS_U,MS_R,FN0, NO,       ENT,  \
-        LSFT,NO,  NO,  NO,  NO,  BTN3,BTN2,BTN1,BTN4,BTN5,NO,            RSFT, \
-        LCTL,LGUI,LALT,          BTN1,                    NO,  FN0, FN0, NO  ),
+        TAB, TRNS,TRNS,TRNS,TRNS,TRNS,WH_L,WH_D,WH_U,WH_R,TRNS,TRNS,TRNS,TRNS, \
+        LCTL,TRNS,ACL0,ACL1,ACL2,TRNS,MS_L,MS_D,MS_U,MS_R,TRNS,TRNS,     ENT,  \
+        LSFT,TRNS,TRNS,TRNS,TRNS,BTN3,BTN2,BTN1,BTN4,BTN5,TRNS,          RSFT, \
+        LCTL,LGUI,LALT,          BTN1,                    TRNS,TRNS,TRNS,RCTL),
+    /* Overlay 7: Layout selector
+     * ,-----------------------------------------------------------.
+     * | Lq| Lc| Ld| Lw|   |   |   |   |   |   |   |   |   |       |
+     * |-----------------------------------------------------------|
+     * |     |Lq |Lw |   |   |   |   |   |   |   |   |   |   |     |
+     * |-----------------------------------------------------------|
+     * |      |   |   |Ld |   |   |   |   |   |   |   |   |        |
+     * |-----------------------------------------------------------|
+     * |        |   |   |Lc |   |   |   |   |   |   |   |          |
+     * |-----------------------------------------------------------|
+     * |    |    |    |                        |    |    |    |    |
+     * `-----------------------------------------------------------'
+     * Lq: set Qwerty layout
+     * Lc: set Colemak layout
+     * Ld: set Dvorak layout
+     * Lw: set Workman layout
+     */
+    KEYMAP_ANSI(
+        FN5, FN6, FN7, FN8, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,FN5, FN8, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,FN7, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
+        TRNS,TRNS,TRNS,FN6, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          TRNS, \
+        TRNS,TRNS,TRNS,          TRNS,                    TRNS,TRNS,TRNS,TRNS),
 };
 
+static const uint8_t PROGMEM overlays[][MATRIX_ROWS][MATRIX_COLS] = {};
+
 /*
  * Fn action definition
  */
 static const uint16_t PROGMEM fn_actions[] = {
-    ACTION_LAYER_DEFAULT,                           // FN0
-    ACTION_LAYER_SET(1),                            // FN1
-    ACTION_LAYER_SET_TAP_KEY(2, KC_SLASH),          // FN2  Layer with Slash
-    ACTION_LAYER_SET_TAP_KEY(3, KC_SCLN),           // FN3  Layer with Semicolon
-    ACTION_LAYER_SET(3),                            // FN4
+    [0] = ACTION_KEYMAP_MOMENTARY(4),
+    [1] = ACTION_KEYMAP_TAP_KEY(5, KC_SLASH),
+    [2] = ACTION_KEYMAP_TAP_KEY(6, KC_SCLN),
+    [3] = ACTION_KEYMAP_MOMENTARY(6),
+    [4] = ACTION_KEYMAP_MOMENTARY(7),   // to Layout selector
+    [5] = ACTION_DEFAULT_LAYER_SET(0),  // set qwerty layout
+    [6] = ACTION_DEFAULT_LAYER_SET(1),  // set colemak layout
+    [7] = ACTION_DEFAULT_LAYER_SET(2),  // set dvorak layout
+    [8] = ACTION_DEFAULT_LAYER_SET(3),  // set workman layout
 };
 #endif
 
 
 
+#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)
 {
-    return pgm_read_byte(&keymaps[(layer)][(key.row)][(key.col)]);
+    /* 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 {
+            debug("key_to_keycode: overlay "); debug_dec(layer); debug(" is invalid.\n");
+            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
+            debug("key_to_keycode: base "); debug_dec(layer); debug(" is invalid.\n");
+            return pgm_read_byte(&keymaps[0][(key.row)][(key.col)]);
+        }
+    }
 }
 
-/* translates Fn index to action */
+/* translates Fn keycode to action */
 action_t keymap_fn_to_action(uint8_t keycode)
 {
     action_t action;
-    if (FN_INDEX(keycode) < sizeof(fn_actions) / sizeof(fn_actions[0])) {
+    if (FN_INDEX(keycode) < FN_ACTIONS_SIZE) {
         action.code = pgm_read_word(&fn_actions[FN_INDEX(keycode)]);
     } else {
         action.code = ACTION_NO;
     }
     return action;
 }
-
-/* convert key to action */
-action_t action_for_key(uint8_t layer, key_t key)
-{
-    uint8_t keycode = keymap_key_to_keycode(layer, key);
-    switch (keycode) {
-        case KC_FN0 ... KC_FN31:
-            return keymap_fn_to_action(keycode);
-        default:
-            return keymap_keycode_to_action(keycode);
-    }
-}
diff --git a/keyboard/gh60/keymap_plain.h b/keyboard/gh60/keymap_plain.h
index ad0bc2f269..85331715dc 100644
--- a/keyboard/gh60/keymap_plain.h
+++ b/keyboard/gh60/keymap_plain.h
@@ -1,24 +1,10 @@
 static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-    /*
-     *  Plain
-     */
-    /* Layer 0: Default Layer
-     * ,-----------------------------------------------------------.
-     * |Esc|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backsp |
-     * |-----------------------------------------------------------|
-     * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|    \|
-     * |-----------------------------------------------------------|
-     * |Caps  |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return  |
-     * |-----------------------------------------------------------|
-     * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift     |
-     * |-----------------------------------------------------------|
-     * |Ctrl|Gui |Alt |      Space             |Alt |Gui |App |Ctrl|
-     * `-----------------------------------------------------------'
-     */
+    /* Keymap 0: qwerty */
     KEYMAP(ESC, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC, \
            TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSLS, \
            CAPS,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,NO,  ENT,  \
            LSFT,NO,  Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,NO,  RSFT, \
            LCTL,LGUI,LALT,          SPC,                     RALT,RGUI,APP, RCTL),
 };
-
+static const uint8_t PROGMEM overlays[][MATRIX_ROWS][MATRIX_COLS] = {};
+static const uint16_t PROGMEM fn_actions[] = {};
diff --git a/keyboard/gh60/keymap_poker.h b/keyboard/gh60/keymap_poker.h
index 186020b3bd..3e0921ad93 100644
--- a/keyboard/gh60/keymap_poker.h
+++ b/keyboard/gh60/keymap_poker.h
@@ -1,88 +1,104 @@
 static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-    /*
-     * Poker Layer
-     */
-    /* Layer x000: Poker Default Layer
-     * ,-----------------------------------------------------------.
-     * |  `|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backsp |
-     * |-----------------------------------------------------------|
-     * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|    \|
-     * |-----------------------------------------------------------|
-     * |Caps  |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return  |
-     * |-----------------------------------------------------------|
-     * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift     |
-     * |-----------------------------------------------------------|
-     * |Ctrl|Gui |Alt |      Space             |Fn  |Gui |App |Ctrl|
-     * `-----------------------------------------------------------'
-     */
+    /* Keymap 0: qwerty */
     KEYMAP_ANSI(
         GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC, \
         TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSLS, \
-        LCTL,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,     ENT,  \
+        CAPS,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,     ENT,  \
         LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,          RSFT, \
-        LCTL,LGUI,LALT,          SPC,                     FN2, RGUI,APP, RCTL),
-    /* Layer x001: Poker with Arrow */
+        LCTL,LGUI,LALT,          SPC,                     FN0, RGUI,APP, RCTL),
+    /* Keymap 1: colemak */
+    KEYMAP_ANSI(
+        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC, \
+        TAB, Q,   W,   F,   P,   G,   J,   L,   U,   Y,   SCLN,LBRC,RBRC,BSLS, \
+        BSPC,A,   R,   S,   T,   D,   H,   N,   E,   I,   O,   QUOT,     ENT,  \
+        LSFT,Z,   X,   C,   V,   B,   K,   M,   COMM,DOT, SLSH,          RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     FN0, RGUI,APP, RCTL),
+    /* Keymap 2: dvorak */
+    KEYMAP_ANSI(
+        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   LBRC,RBRC,BSPC, \
+        TAB, QUOT,COMM,DOT, P,   Y,   F,   G,   C,   R,   L,   SLSH,EQL, BSLS, \
+        CAPS,A,   O,   E,   U,   I,   D,   H,   T,   N,   S,   MINS,     ENT,  \
+        LSFT,SCLN,Q,   J,   K,   X,   B,   M,   W,   V,   Z,             RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     FN0, RGUI,APP, RCTL),
+    /* Keymap: workman */
+    KEYMAP_ANSI(
+        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC, \
+        TAB, Q,   D,   R,   W,   B,   J,   F,   U,   P,   SCLN,LBRC,RBRC,BSLS, \
+        BSPC,A,   S,   H,   T,   G,   Y,   N,   E,   O,   I,   QUOT,     ENT,  \
+        LSFT,Z,   X,   M,   C,   V,   K,   L,   COMM,DOT, SLSH,          RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     FN0, RGUI,APP, RCTL),
+};
+static const uint8_t PROGMEM overlays[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Overlay 0: Poker with Arrow */
     KEYMAP_ANSI(
         TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
         TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
         TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
         TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          UP,   \
-        TRNS,TRNS,TRNS,          TRNS,                    FN2, LEFT,DOWN,RGHT),
-    /* Layer x010: Poker with Esc */
+        TRNS,TRNS,TRNS,          TRNS,                    TRNS,LEFT,DOWN,RGHT),
+    /* Overlay 1: Poker with Esc */
     KEYMAP_ANSI(
         ESC, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
         TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
         TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
         TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          TRNS, \
-        TRNS,TRNS,TRNS,          TRNS,                    FN2, TRNS,TRNS,TRNS),
-    /* Layer x011: Poker with Arrow and Esc */
-    KEYMAP_ANSI(
-        ESC, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
-        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
-        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
-        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          UP,   \
-        TRNS,TRNS,TRNS,          TRNS,                    FN2, LEFT,DOWN,RGHT),
-    /*
-     * Poker Momentary Fn Layer
+        TRNS,TRNS,TRNS,          TRNS,                    TRNS,TRNS,TRNS,TRNS),
+    /* Overlay 2: Poker Fn
+     * ,-----------------------------------------------------------.
+     * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|       |
+     * |-----------------------------------------------------------|
+     * |     |FnQ| Up|   |   |   |   |   |   |Cal|   |Hom|Ins|FnL  |
+     * |-----------------------------------------------------------|
+     * |      |Lef|Dow|Rig|   |   |Psc|Slk|Pau|   |Tsk|End|        |
+     * |-----------------------------------------------------------|
+     * |        |Del|   |Web|Mut|VoU|VoD|   |PgU|PgD|Del|          |
+     * |-----------------------------------------------------------|
+     * |    |    |    |         FnS            |    |    |    |    |
+     * `-----------------------------------------------------------'
+     * Fn:  to Fn overlay
+     * FnL: to Layout selector overaly
+     * FnQ: toggle Esc overlay
+     * FnS: toggle Arrow overlay
      */
-    /* Layer x100: Poker Default + Fn'd */
     KEYMAP_ANSI(
         ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, \
-        TRNS,FN1, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, TRNS, \
+        TRNS,FN2, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, FN4,  \
         TRNS,LEFT,DOWN,RGHT,TRNS,TRNS,PSCR,SLCK,PAUS,TRNS,FN3, END,      TRNS, \
         TRNS,DEL, TRNS,WHOM,MUTE,VOLU,VOLD,TRNS,PGUP,PGDN,DEL,           TRNS, \
-        TRNS,TRNS,TRNS,          FN0,                     FN2, TRNS,TRNS,TRNS),
-    /* Layer x101: Poker with Arrow + Fn'd */
-    KEYMAP_ANSI(
-        ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, \
-        TRNS,FN1, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, TRNS, \
-        TRNS,LEFT,DOWN,RGHT,TRNS,TRNS,PSCR,SLCK,PAUS,TRNS,FN3, END,      TRNS, \
-        TRNS,DEL, TRNS,WHOM,MUTE,VOLU,VOLD,TRNS,PGUP,PGDN,DEL,           UP,   \
-        TRNS,TRNS,TRNS,          FN0,                     FN2, LEFT,DOWN,RGHT),
-    /* Layer x110: Poker with Esc + Fn'd */
-    KEYMAP_ANSI(
-        GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, \
-        TRNS,FN1, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, TRNS, \
-        TRNS,LEFT,DOWN,RGHT,TRNS,TRNS,PSCR,SLCK,PAUS,TRNS,FN3, END,      TRNS, \
-        TRNS,DEL, TRNS,WHOM,MUTE,VOLU,VOLD,TRNS,PGUP,PGDN,DEL,           TRNS, \
-        TRNS,TRNS,TRNS,          FN0,                     FN2, TRNS,TRNS,TRNS),
-    /* Layer x111: Poker with Arrow and Esc + Fn'd */
+        TRNS,TRNS,TRNS,          FN1,                     TRNS,TRNS,TRNS,TRNS),
+    /* Overlay 3: Layout selector
+     * ,-----------------------------------------------------------.
+     * | Lq| Lc| Ld| Lw|   |   |   |   |   |   |   |   |   |       |
+     * |-----------------------------------------------------------|
+     * |     |Lq |Lw |   |   |   |   |   |   |   |   |   |   |     |
+     * |-----------------------------------------------------------|
+     * |      |   |   |Ld |   |   |   |   |   |   |   |   |        |
+     * |-----------------------------------------------------------|
+     * |        |   |   |Lc |   |   |   |   |   |   |   |          |
+     * |-----------------------------------------------------------|
+     * |    |    |    |                        |    |    |    |    |
+     * `-----------------------------------------------------------'
+     * Lq: set Qwerty layout
+     * Lc: set Colemak layout
+     * Ld: set Dvorak layout
+     * Lw: set Workman layout
+     */
     KEYMAP_ANSI(
-        GRV, F9,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, \
-        TRNS,FN1, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, TRNS, \
-        TRNS,LEFT,DOWN,RGHT,TRNS,TRNS,PSCR,SLCK,PAUS,TRNS,FN3, END,      TRNS, \
-        TRNS,DEL, TRNS,WHOM,MUTE,VOLU,VOLD,TRNS,PGUP,PGDN,DEL,           UP,   \
-        TRNS,TRNS,TRNS,          FN0,                     FN2, LEFT,DOWN,RGHT),
+        FN5, FN6, FN7, FN8, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,FN5, FN8, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,FN7, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
+        TRNS,TRNS,TRNS,FN6, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          TRNS, \
+        TRNS,TRNS,TRNS,          TRNS,                    TRNS,TRNS,TRNS,TRNS),
 };
-
-/*
- * Fn action definition
- */
 static const uint16_t PROGMEM fn_actions[] = {
     /* Poker Layout */
-    [0] = ACTION_LAYER_BIT_TOGGLE(1),              // FN0 Poker Arrow toggle(Space)
-    [1] = ACTION_LAYER_BIT_TOGGLE(2),              // FN1 Poker Esc toggle(Q)
-    [2] = ACTION_LAYER_BIT(4),                     // FN2 Poker Fn
-    [3] = ACTION_RMODS_KEY(MOD_BIT(KC_RCTL)|MOD_BIT(KC_RSFT), KC_ESC), // FN3 Task(RControl,RShift+Esc)
+    [0] = ACTION_OVERLAY_MOMENTARY(2),  // to Fn overlay
+    [1] = ACTION_OVERLAY_TOGGLE(0),     // toggle arrow overlay
+    [2] = ACTION_OVERLAY_TOGGLE(1),     // toggle Esc overlay
+    [3] = ACTION_RMODS_KEY(MOD_BIT(KC_RCTL)|MOD_BIT(KC_RSFT), KC_ESC), // Task(RControl,RShift+Esc)
+    [4] = ACTION_OVERLAY_MOMENTARY(3),  // to Layout selector
+    [5] = ACTION_DEFAULT_LAYER_SET(0),  // set qwerty layout
+    [6] = ACTION_DEFAULT_LAYER_SET(1),  // set colemak layout
+    [7] = ACTION_DEFAULT_LAYER_SET(2),  // set dvorak layout
+    [8] = ACTION_DEFAULT_LAYER_SET(3),  // set workman layout
 };
-
diff --git a/keyboard/gh60/keymap_poker_bit.h b/keyboard/gh60/keymap_poker_bit.h
new file mode 100644
index 0000000000..982632d05b
--- /dev/null
+++ b/keyboard/gh60/keymap_poker_bit.h
@@ -0,0 +1,50 @@
+// Poker fix with toggle and bit operation
+// Fn + Esc = `
+// Fn + {left, down, up, right}  = {home, pgdown, pgup, end}
+static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Keymap 0: qwerty */
+    KEYMAP_ANSI(
+        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC, \
+        TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSLS, \
+        LCTL,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,     ENT,  \
+        LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,          RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     FN0, RGUI,APP, RCTL),
+};
+static const uint8_t PROGMEM overlays[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Overlay 0: Poker Default + Fn'd */
+    KEYMAP_ANSI(
+        TRNS,F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, \
+        CAPS,FN2, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, TRNS, \
+        TRNS,LEFT,DOWN,RGHT,TRNS,TRNS,PSCR,SLCK,PAUS,TRNS,FN4, END,      TRNS, \
+        TRNS,DEL, TRNS,WHOM,MUTE,VOLU,VOLD,TRNS,PGUP,PGDN,DEL,           TRNS, \
+        TRNS,TRNS,TRNS,          FN1,                     TRNS,TRNS,TRNS,TRNS),
+    /* Overlay 1: Poker with Arrow */
+    KEYMAP_ANSI(
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          PGUP, \
+        TRNS,TRNS,TRNS,          TRNS,                    FN3, HOME,PGDN,END),
+    /* Overlay 2: Poker with Esc */
+    KEYMAP_ANSI(
+        ESC, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          TRNS, \
+        TRNS,TRNS,TRNS,          TRNS,                    TRNS,TRNS,TRNS,TRNS),
+    /* Overlay 3: Poker with Arrow + Fn'd */
+    KEYMAP_ANSI(
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          UP,   \
+        TRNS,TRNS,TRNS,          TRNS,                    TRNS,LEFT,DOWN,RGHT),
+};
+static const uint16_t PROGMEM fn_actions[] = {
+    /* Poker Layout */
+    [0] = ACTION_OVERLAY_INV4(0b0101, 0),        // Poker Fn(with fix for Esc)
+    [1] = ACTION_OVERLAY_TOGGLE(1),              // Poker Arrow toggle
+    [2] = ACTION_OVERLAY_TOGGLE(2),              // Poker Esc toggle
+    [3] = ACTION_OVERLAY_INV4(0b1101, 0),        // Poker Fn(with fix for Arrow)
+    [4] = ACTION_RMODS_KEY(MOD_BIT(KC_RCTL)|MOD_BIT(KC_RSFT), KC_ESC), // FN3 Task(RControl,RShift+Esc)
+};
diff --git a/keyboard/gh60/keymap_poker_set.h b/keyboard/gh60/keymap_poker_set.h
new file mode 100644
index 0000000000..eaaf3159db
--- /dev/null
+++ b/keyboard/gh60/keymap_poker_set.h
@@ -0,0 +1,81 @@
+// Poker fix with set(state transition)
+// Fn + Esc = `
+// Fn + {left, down, up, right}  = {home, pgdown, pgup, end}
+static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Keymap 0: qwerty */
+    KEYMAP_ANSI(
+        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC, \
+        TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSLS, \
+        LCTL,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,     ENT,  \
+        LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,          RSFT, \
+        LCTL,LGUI,LALT,          SPC,                     FN0, RGUI,APP, RCTL),
+};
+static const uint8_t PROGMEM overlays[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Overlay 0: Poker with Arrow */
+    KEYMAP_ANSI(
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          UP,   \
+        TRNS,TRNS,TRNS,          TRNS,                    FN1, LEFT,DOWN,RGHT),
+    /* Overlay 1: Poker with Esc */
+    KEYMAP_ANSI(
+        ESC, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          TRNS, \
+        TRNS,TRNS,TRNS,          TRNS,                    FN2, TRNS,TRNS,TRNS),
+    /* Overlay 2: Poker with Arrow and Esc */
+    KEYMAP_ANSI(
+        ESC, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,     TRNS, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,          UP,   \
+        TRNS,TRNS,TRNS,          TRNS,                    FN3, LEFT,DOWN,RGHT),
+    /* Overlay 3: Poker Fn'd */
+    KEYMAP_ANSI(
+        ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, \
+        TRNS,FN6, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, TRNS, \
+        TRNS,LEFT,DOWN,RGHT,TRNS,TRNS,PSCR,SLCK,PAUS,TRNS,FN8, END,      TRNS, \
+        TRNS,DEL, TRNS,WHOM,MUTE,VOLU,VOLD,TRNS,PGUP,PGDN,DEL,           TRNS, \
+        TRNS,TRNS,TRNS,          FN5,                     FN4, TRNS,TRNS,TRNS),
+    /* Overlay 4: Poker Fn'd arrow */
+    KEYMAP_ANSI(
+        ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, \
+        TRNS,FN7, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, TRNS, \
+        TRNS,LEFT,DOWN,RGHT,TRNS,TRNS,PSCR,SLCK,PAUS,TRNS,FN8, END,      TRNS, \
+        TRNS,DEL, TRNS,WHOM,MUTE,VOLU,VOLD,TRNS,PGUP,PGDN,DEL,           PGUP, \
+        TRNS,TRNS,TRNS,          FN4,                     FN5, HOME,PGDN,END),
+    /* Overlay 5: Poker Fn'd Esc */
+    KEYMAP_ANSI(
+        GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, \
+        TRNS,FN4, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, TRNS, \
+        TRNS,LEFT,DOWN,RGHT,TRNS,TRNS,PSCR,SLCK,PAUS,TRNS,FN8, END,      TRNS, \
+        TRNS,DEL, TRNS,WHOM,MUTE,VOLU,VOLD,TRNS,PGUP,PGDN,DEL,           TRNS, \
+        TRNS,TRNS,TRNS,          FN7,                     FN6, TRNS,TRNS,TRNS),
+    /* Overlay 6: Poker Fn'd Arrow + Esc */
+    KEYMAP_ANSI(
+        GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, \
+        TRNS,FN5, UP,  TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,CALC,TRNS,HOME,INS, TRNS, \
+        TRNS,LEFT,DOWN,RGHT,TRNS,TRNS,PSCR,SLCK,PAUS,TRNS,FN8, END,      TRNS, \
+        TRNS,DEL, TRNS,WHOM,MUTE,VOLU,VOLD,TRNS,PGUP,PGDN,DEL,           PGUP, \
+        TRNS,TRNS,TRNS,          FN6,                     FN7, HOME,PGDN,END),
+};
+
+/*
+ * Fn action definition
+ */
+static const uint16_t PROGMEM fn_actions[] = {
+    /* Poker Layout */
+    [0] = ACTION_OVERLAY_SET(3, ON_PRESS),     // FN0 move to Fn'd             when press
+    [1] = ACTION_OVERLAY_SET(4, ON_PRESS),     // FN1 move to Fn'd arrow       when press
+    [2] = ACTION_OVERLAY_SET(5, ON_PRESS),     // FN2 move to Fn'd Esc         when press
+    [3] = ACTION_OVERLAY_SET(6, ON_PRESS),     // FN3 move to Fn'd arrow + Esc when press
+
+    [4] = ACTION_OVERLAY_CLEAR(ON_RELEASE),    // FN4 clear overlay            when release
+    [5] = ACTION_OVERLAY_SET(0, ON_RELEASE),   // FN5 move to arrow            when release
+    [6] = ACTION_OVERLAY_SET(1, ON_RELEASE),   // FN6 move to Esc              when release
+    [7] = ACTION_OVERLAY_SET(2, ON_RELEASE),   // FN7 move to arrow + Esc      when release
+
+    [8] = ACTION_RMODS_KEY(MOD_BIT(KC_RCTL)|MOD_BIT(KC_RSFT), KC_ESC), // FN8 Task(RControl,RShift+Esc)
+};
diff --git a/keyboard/hhkb/config.h b/keyboard/hhkb/config.h
index 5fcec95eb2..72e4d26e92 100644
--- a/keyboard/hhkb/config.h
+++ b/keyboard/hhkb/config.h
@@ -36,6 +36,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MATRIX_ROWS 8
 #define MATRIX_COLS 8
 
+/* To use new keymap framework */
+#define USE_KEYMAP_V2
 
 /* 
  * Boot magic keys
diff --git a/keyboard/hhkb/config_iwrap.h b/keyboard/hhkb/config_iwrap.h
index 734d669774..d50b704d72 100644
--- a/keyboard/hhkb/config_iwrap.h
+++ b/keyboard/hhkb/config_iwrap.h
@@ -31,6 +31,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MATRIX_ROWS 8
 #define MATRIX_COLS 8
 
+/* To use new keymap framework */
+#define USE_KEYMAP_V2
 
 /* key combination for command */
 #define IS_COMMAND() (keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT))) 
diff --git a/keyboard/hhkb/keymap.c b/keyboard/hhkb/keymap.c
index ef21282ff1..094d33af11 100644
--- a/keyboard/hhkb/keymap.c
+++ b/keyboard/hhkb/keymap.c
@@ -56,18 +56,18 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      * |-----------------------------------------------------------|
      * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|Backs|
      * |-----------------------------------------------------------|
-     * |Fn6   |  A|  S|  D|  F|  G|  H|  J|  K|  L|Fn3|  '|Return  |
+     * |Contro|  A|  S|  D|  F|  G|  H|  J|  K|  L|Fn3|  '|Fn4     |
      * |-----------------------------------------------------------|
-     * |Fn8     |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|Fn2|Fn12  |Fn1|
+     * |Fn5     |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|Fn2|Shift |Fn1|
      * `-----------------------------------------------------------'
-     *       |Gui|Alt  |          Fn5          |Alt  |Fn4|
+     *       |Gui|Alt  |         Fn6           |Alt  |Fn7|
      *       `-------------------------------------------'
      */
     KEYMAP(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, \
-           FN6, A,   S,   D,   F,   G,   H,   J,   K,   L,   FN3, QUOT,FN7, \
-           FN8, Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, FN2, FN12,FN9, \
-                LGUI,LALT,          FN5,                FN13,FN4),
+           LCTL,A,   S,   D,   F,   G,   H,   J,   K,   L,   FN3, QUOT,FN4, \
+            FN5,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, FN2, RSFT,FN1, \
+                LGUI,LALT,          FN6,                RALT,FN7),
 
     /* Layer 1: HHKB mode (HHKB Fn)
      * ,-----------------------------------------------------------.
@@ -77,15 +77,15 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      * |-----------------------------------------------------------|
      * |Contro|VoD|VoU|Mut|   |   |  *|  /|Hom|PgU|Lef|Rig|Enter   |
      * |-----------------------------------------------------------|
-     * |Shift   |   |   |   |   |   |  +|  -|End|PgD|Dow|Shift |Fn0|
+     * |Shift   |   |   |   |   |   |  +|  -|End|PgD|Dow|Shift |   |
      * `-----------------------------------------------------------'
      *       |Gui|Alt  |         Space         |Alt  |Gui|
      *       `-------------------------------------------'
      */ 
-    KEYMAP(PWR, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL, \
+    KEYMAP(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,  PAST,PSLS,HOME,PGUP,LEFT,RGHT,ENT, \
-           LSFT,NO,  NO,  NO,  NO,  NO,  PPLS,PMNS,END, PGDN,DOWN,RSFT,FN0, \
+           LSFT,NO,  NO,  NO,  NO,  NO,  PPLS,PMNS,END, PGDN,DOWN,RSFT,TRNS, \
                 LGUI,LALT,          SPC,                RALT,RGUI),
 
     /* Layer 2: Vi mode (Slash)
@@ -101,10 +101,10 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      *       |Gui|Alt  |          Space        |Alt  |Gui|
      *       `-------------------------------------------'
      */
-    KEYMAP(ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL, \
+    KEYMAP(GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL, \
            TAB, HOME,PGDN,UP,  PGUP,END, HOME,PGDN,PGUP,END, NO,  NO,  NO,  BSPC, \
            LCTL,NO,  LEFT,DOWN,RGHT,NO,  LEFT,DOWN,UP,  RGHT,NO,  NO,  ENT, \
-           LSFT,NO,  NO,  NO,  NO,  NO,  HOME,PGDN,PGUP,END, FN0, RSFT,NO, \
+           LSFT,NO,  NO,  NO,  NO,  NO,  HOME,PGDN,PGUP,END, TRNS,RSFT,NO, \
                 LGUI,LALT,          SPC,                RALT,RGUI),
 
     /* Layer 3: Mouse mode (Semicolon)
@@ -121,13 +121,13 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      *      `--------------------------------------------'
      * Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel 
      */
-    KEYMAP(ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL, \
+    KEYMAP(GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL, \
            TAB, 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,FN0, QUOT,ENT, \
+           LCTL,NO,  ACL0,ACL1,ACL2,NO,  MS_L,MS_D,MS_U,MS_R,TRNS,QUOT,ENT, \
            LSFT,NO,  NO,  NO,  NO,  BTN3,BTN2,BTN1,BTN4,BTN5,SLSH,RSFT,NO, \
-                LGUI,LALT,          BTN1,               RALT,FN0),
+                LGUI,LALT,          BTN1,               RALT,TRNS),
 
-    /* Layer 4: Matias half keyboard style (Space)
+    /* Layer 4: Matias half-qwerty keyboard style (Space)
      * ,-----------------------------------------------------------.
      * |  -|  0|  9|  8|  7|  6|  5|  4|  3|  2|  1|   |   |   |Esc|
      * |-----------------------------------------------------------|
@@ -144,7 +144,7 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
            BSPC,P,   O,   I,   U,   Y,   T,   R,   E,   W,   Q,   NO,  NO,  TAB, \
            LCTL,SCLN,L,   K,   J,   H,   G,   F,   D,   S,   A,   RCTL,RCTL, \
            LSFT,SLSH,DOT, COMM,M,   N,   B,   V,   C,   X,   Z,   RSFT,NO, \
-                LGUI,LALT,          FN0,                RALT,RGUI),
+                LGUI,LALT,          TRNS,               RALT,RGUI),
 
     /* Layer5: another Mouse mode (Space)
      * ,-----------------------------------------------------------.
@@ -164,7 +164,7 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
            TAB, 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,NO,  NO,  ENT, \
            LSFT,NO,  NO,  NO,  NO,  BTN3,BTN2,BTN1,BTN4,BTN5,NO,  RSFT,NO, \
-                LGUI,LALT,          FN0,                RALT,RGUI),
+                LGUI,LALT,          TRNS,               RALT,RGUI),
 };
 
 
@@ -173,56 +173,72 @@ static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 enum function_id {
     LSHIFT_LPAREN,
     RSHIFT_RPAREN,
-    MACRO                   = 0xff
+};
+
+enum macro_id {
+    LSHIFT_PAREN,
+    RSHIFT_PAREN,
+    HELLO,
 };
 
 
 /*
  * Fn action definition
  */
-// TODO: use [1] = KEYMAP(...) to prevent from changing index of element?
 static const uint16_t PROGMEM fn_actions[] = {
-    ACTION_LAYER_DEFAULT,                           // FN0
-    ACTION_LAYER_SET(1),                            // FN1
-    ACTION_LAYER_SET_TAP_KEY(2, KC_SLASH),          // FN2  Layer with Slash
-    ACTION_LAYER_SET_TAP_KEY(3, KC_SCLN),           // FN3  Layer with Semicolon
+    [0] = ACTION_DEFAULT_LAYER,                        // Default layer(not used)
+//  [1] = ACTION_KEYMAP(1),                            // HHKB layer
+    [1] = ACTION_KEYMAP_TAP_TOGGLE(1),                 // HHKB layer(toggle with 5 taps)
+    [2] = ACTION_KEYMAP_TAP_KEY(2, KC_SLASH),          // Cursor layer with Slash*
+    [3] = ACTION_KEYMAP_TAP_KEY(3, KC_SCLN),           // Mousekey layer with Semicolon*
+    [4] = ACTION_RMOD_TAP_KEY(KC_RCTL, KC_ENT),        // RControl with tap Enter*
+    [5] = ACTION_LMOD_ONESHOT(KC_LSFT),                // Oneshot Shift*
+//  [6] = ACTION_KEYMAP_TAP_KEY(4, KC_SPC),            // Half-qwerty layer with Space
+    [6] = ACTION_KEYMAP_TAP_KEY(5, KC_SPC),            // Mousekey layer with Space
+//  [7] = ACTION_KEYMAP(3),                            // Mousekey layer
+    [7] = ACTION_KEYMAP_TOGGLE(3),                     // Mousekey layer(toggle)
 
-    ACTION_LAYER_SET(3),                            // FN4
-//  ACTION_LAYER_SET_TOGGLE(3),                     // FN4
-//  ACTION_FUNCTION(MACRO, 0),                      // FN4
-    ACTION_LAYER_SET_TAP_KEY(5, KC_SPC),            // FN5
-//  ACTION_LMOD_TAP_KEY(KC_LCTL, KC_BSPC),          // FN6  Control with tap Backspace
-    ACTION_LMOD_TAP_KEY(KC_LCTL, KC_ESC),           // FN6  Control with tap Backspace
-    ACTION_RMOD_TAP_KEY(KC_RCTL, KC_ENT),           // FN7  Control with tap Enter
-    ACTION_LMOD_ONESHOT(KC_LSFT),                   // FN8  Oneshot Shift
-    ACTION_LAYER_SET_TAP_TOGGLE(1),                 // FN9
-    ACTION_LAYER_BIT_TAP_KEY(1, KC_GRV),            // FN10 Layer with Grave
-    //ACTION_LAYER_BIT(1),                          // FN10
-    //ACTION_LAYER_BIT_TAP_TOGGLE(1),               // FN10
-    ACTION_FUNCTION_TAP(LSHIFT_LPAREN),             // FN11 Function: LShift with tap '('
-    ACTION_FUNCTION_TAP(RSHIFT_RPAREN),             // FN12 Function: RShift with tap ')'
-    ACTION_FUNCTION(MACRO, 1),                      // FN13 Macro:
+//  [8] = ACTION_LMOD_TAP_KEY(KC_LCTL, KC_BSPC),       // LControl with tap Backspace
+//  [9] = ACTION_LMOD_TAP_KEY(KC_LCTL, KC_ESC),        // LControl with tap Esc
+//  [11] = ACTION_FUNCTION_TAP(LSHIFT_LPAREN),         // Function: LShift with tap '('
+//  [12] = ACTION_FUNCTION_TAP(RSHIFT_RPAREN),         // Function: RShift with tap ')'
+//  [13] = ACTION_MACRO_TAP(LSHIFT_PAREN),             // Macro: LShift with tap '('
+//  [14] = ACTION_MACRO_TAP(RSHIFT_PAREN),             // Macro: RShift with tap ')'
+//  [15] = ACTION_MACRO(HELLO),                        // Macro: say hello
 };
 
 
 /*
  * Macro definition
  */
-#define MACRO(...) ({ static prog_macro_t _m[] PROGMEM = { __VA_ARGS__ }; _m; })
-#define MACRO_NONE  0
-static const prog_macro_t *get_macro(uint8_t id, bool pressed)
+const prog_macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
 {
+    keyevent_t event = record->event;
+    tap_t tap = record->tap;
+
     switch (id) {
-        case 0:
-            return (pressed ?
-                    MACRO( MD(LSHIFT), D(D), END ) :
-                    MACRO( U(D), MU(LSHIFT), END ) );
-        case 1:
-            return (pressed ?
-                    MACRO( I(255), T(H), T(E), T(L), T(L), W(255), T(O), END ) :
+        case LSHIFT_PAREN:
+            if (tap.count > 0 && !tap.interrupted) {
+                return (event.pressed ?
+                        MACRO( MD(LSHIFT), D(9), U(9), MU(LSHIFT), END ) : MACRO_NONE);
+            } else {
+                return (event.pressed ?
+                        MACRO( MD(LSHIFT), END ) : MACRO( MU(LSHIFT), END ) );
+            }
+        case RSHIFT_PAREN:
+            if (tap.count > 0 && !tap.interrupted) {
+                return (event.pressed ?
+                        MACRO( MD(RSHIFT), D(0), U(0), MU(RSHIFT), END ) : MACRO_NONE);
+            } else {
+                return (event.pressed ?
+                        MACRO( MD(RSHIFT), END ) : MACRO( MU(RSHIFT), END ) );
+            }
+        case HELLO:
+            return (event.pressed ?
+                    MACRO( I(0), T(H), T(E), T(L), T(L), W(255), T(O), END ) :
                     MACRO_NONE );
     }
-    return 0;
+    return MACRO_NONE;
 }
 
 
@@ -230,82 +246,51 @@ static const prog_macro_t *get_macro(uint8_t id, bool pressed)
 /*
  * user defined action function
  */
-void keymap_call_function(keyrecord_t *record, uint8_t id, uint8_t opt)
+void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
 {
     keyevent_t event = record->event;
-    uint8_t tap_count = record->tap_count;
-
-    debug("action_call_function: ");
-    if (event.pressed) debug("pressed"); else debug("released");
-    debug(" id: "); debug_hex(id);
-    debug(" tap_count: "); debug_dec(tap_count);
-    debug("\n");
+    tap_t tap = record->tap;
 
     switch (id) {
         case LSHIFT_LPAREN:
             // LShft + tap '('
+            // NOTE: cant use register_code to avoid conflicting with magic key bind
             if (event.pressed) {
-                if (tap_count == 0) {
+                if (tap.count == 0 || tap.interrupted) {
                     add_mods(MOD_BIT(KC_LSHIFT));
                 } else {
-                    if (waiting_buffer_has_anykey_pressed()) {
-                        // ad hoc: set 0 to cancel tap
-                        record->tap_count = 0;
-                        add_mods(MOD_BIT(KC_LSHIFT));
-                    } else {
-                        // NOTE to avoid conflicting command key bind(LShift+RShift)
-                        //register_code(KC_LSHIFT);
-                        //register_code(KC_9);
-                        host_add_mods(MOD_BIT(KC_LSHIFT));
-                        host_add_key(KC_9);
-                        host_send_keyboard_report();
-                    }
-                }
-            } else {
-                if (tap_count == 0) {
-                    del_mods(MOD_BIT(KC_LSHIFT));
-                } else {
-                    //unregister_code(KC_9);
-                    //unregister_code(KC_LSHIFT);
+                    host_add_mods(MOD_BIT(KC_LSHIFT));
+                    host_add_key(KC_9);
+                    host_send_keyboard_report();
                     host_del_mods(MOD_BIT(KC_LSHIFT));
                     host_del_key(KC_9);
                     host_send_keyboard_report();
                 }
+            } else {
+                if (tap.count == 0 || tap.interrupted) {
+                    del_mods(MOD_BIT(KC_LSHIFT));
+                }
             }
             break;
         case RSHIFT_RPAREN:
             // RShift + tap ')'
             if (event.pressed) {
-                if (tap_count == 0) {
+                if (tap.count == 0 || tap.interrupted) {
                     add_mods(MOD_BIT(KC_RSHIFT));
                 } else {
-                    if (waiting_buffer_has_anykey_pressed()) {
-                        // ad hoc: set 0 to cancel tap
-                        record->tap_count = 0;
-                        add_mods(MOD_BIT(KC_RSHIFT));
-                    } else {
-                        //register_code(KC_RSHIFT);
-                        //register_code(KC_0);
-                        host_add_mods(MOD_BIT(KC_RSHIFT));
-                        host_add_key(KC_0);
-                        host_send_keyboard_report();
-                    }
-                }
-            } else {
-                if (tap_count == 0) {
-                    del_mods(MOD_BIT(KC_RSHIFT));
-                } else {
-                    //unregister_code(KC_0);
-                    //unregister_code(KC_RSHIFT);
+                    host_add_mods(MOD_BIT(KC_RSHIFT));
+                    host_add_key(KC_0);
+                    host_send_keyboard_report();
                     host_del_mods(MOD_BIT(KC_RSHIFT));
                     host_del_key(KC_0);
                     host_send_keyboard_report();
                 }
+            } else {
+                if (tap.count == 0 || tap.interrupted) {
+                    del_mods(MOD_BIT(KC_RSHIFT));
+                }
             }
             break;
-        case MACRO:
-            action_macro_play(get_macro(opt, event.pressed));
-            break;
     }
 }
 
@@ -328,15 +313,3 @@ action_t keymap_fn_to_action(uint8_t keycode)
     }
     return action;
 }
-
-/* convert key to action */
-action_t action_for_key(uint8_t layer, key_t key)
-{
-    uint8_t keycode = keymap_key_to_keycode(layer, key);
-    switch (keycode) {
-        case KC_FN0 ... KC_FN31:
-            return keymap_fn_to_action(keycode);
-        default:
-            return keymap_keycode_to_action(keycode);
-    }
-}
diff --git a/protocol/serial.h b/protocol/serial.h
index bd071bec92..96913c8675 100644
--- a/protocol/serial.h
+++ b/protocol/serial.h
@@ -41,6 +41,7 @@ POSSIBILITY OF SUCH DAMAGE.
 /* host role */
 void serial_init(void);
 uint8_t serial_recv(void);
+int16_t serial_recv2(void);
 void serial_send(uint8_t data);
 
 #endif
diff --git a/protocol/serial_soft.c b/protocol/serial_soft.c
index beddc353c0..e8870bcd79 100644
--- a/protocol/serial_soft.c
+++ b/protocol/serial_soft.c
@@ -43,15 +43,47 @@ POSSIBILITY OF SUCH DAMAGE.
 
 /*
  *  Stupid Inefficient Busy-wait Software Serial
- *  is still useful for negative logic signal like Sun protocol not supported by hardware USART.
+ *  which is still useful for negative logic signal like Sun protocol
+ *  if it is not supported by hardware UART.
+ *
+ *  TODO: delay is not accurate enough. Instruction cycle should be counted and inline assemby is needed.
  */
 
-#define WAIT_US     (1000000/SERIAL_BAUD)
+#define WAIT_US     (1000000L/SERIAL_SOFT_BAUD)
+
+#ifdef SERIAL_SOFT_LOGIC_NEGATIVE
+    #define SERIAL_SOFT_RXD_IN()        !(SERIAL_SOFT_RXD_READ())
+    #define SERIAL_SOFT_TXD_ON()        SERIAL_SOFT_TXD_LO()
+    #define SERIAL_SOFT_TXD_OFF()       SERIAL_SOFT_TXD_HI()
+#else
+    #define SERIAL_SOFT_RXD_IN()        !!(SERIAL_SOFT_RXD_READ())
+    #define SERIAL_SOFT_TXD_ON()        SERIAL_SOFT_TXD_HI()
+    #define SERIAL_SOFT_TXD_OFF()       SERIAL_SOFT_TXD_LO()
+#endif
+
+#ifdef SERIAL_SOFT_PARITY_EVEN
+    #define SERIAL_SOFT_PARITY_VAL      0
+#elif defined(SERIAL_SOFT_PARITY_ODD)
+    #define SERIAL_SOFT_PARITY_VAL      1
+#endif
+
+/* debug for signal timing, see debug pin with oscilloscope */
+#define SERIAL_SOFT_DEBUG
+#ifdef SERIAL_SOFT_DEBUG
+    #define SERIAL_SOFT_DEBUG_INIT()    (DDRD |= 1<<7)
+    #define SERIAL_SOFT_DEBUG_TGL()     (PORTD ^= 1<<7)
+#else
+    #define SERIAL_SOFT_DEBUG_INIT()
+    #define SERIAL_SOFT_DEBUG_TGL()
+#endif
+
 
 void serial_init(void)
 {
-    SERIAL_RXD_INIT();
-    SERIAL_TXD_INIT();
+    SERIAL_SOFT_DEBUG_INIT();
+
+    SERIAL_SOFT_RXD_INIT();
+    SERIAL_SOFT_TXD_INIT();
 }
 
 /* RX ring buffer */
@@ -60,6 +92,7 @@ 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;
@@ -72,68 +105,120 @@ uint8_t serial_recv(void)
     return data;
 }
 
+int16_t serial_recv2(void)
+{
+    uint8_t data = 0;
+    if (rbuf_head == rbuf_tail) {
+        return -1;
+    }
+
+    data = rbuf[rbuf_tail];
+    rbuf_tail = (rbuf_tail + 1) % RBUF_SIZE;
+    return data;
+}
+
 void serial_send(uint8_t data)
 {
     /* signal state: IDLE: ON, START: OFF, STOP: ON, DATA0: OFF, DATA1: ON */
-    /* start bit */
-    SERIAL_TXD_OFF();
-    _delay_us(WAIT_US);
 
-#ifdef SERIAL_BIT_ORDER_MSB
+#ifdef SERIAL_SOFT_BIT_ORDER_MSB
     uint8_t mask = 0x80;
 #else
     uint8_t mask = 0x01;
 #endif
+
+    uint8_t parity = 0;
+
+    /* start bit */
+    SERIAL_SOFT_TXD_OFF();
+    _delay_us(WAIT_US);
+
     while (mask) {
-        if (data&mask) { SERIAL_TXD_ON(); } else { SERIAL_TXD_OFF(); }
+        if (data&mask) {
+            SERIAL_SOFT_TXD_ON();
+            parity ^= 1;
+        } else {
+            SERIAL_SOFT_TXD_OFF();
+        }
         _delay_us(WAIT_US);
 
-#ifdef SERIAL_BIT_ORDER_MSB
+#ifdef SERIAL_SOFT_BIT_ORDER_MSB
         mask >>= 1;
 #else
         mask <<= 1;
 #endif
     }
 
+#if defined(SERIAL_SOFT_PARITY_EVEN) || defined(SERIAL_SOFT_PARITY_ODD)
+    /* to center of parity bit */
+    if (parity != SERIAL_SOFT_PARITY_VAL) {
+        SERIAL_SOFT_TXD_ON();
+    } else {
+        SERIAL_SOFT_TXD_OFF();
+    }
+    _delay_us(WAIT_US);
+#endif
+
     /* stop bit */
-    SERIAL_TXD_ON();
+    SERIAL_SOFT_TXD_ON();
     _delay_us(WAIT_US);
 }
 
 /* detect edge of start bit */
-ISR(SERIAL_RXD_VECT)
+ISR(SERIAL_SOFT_RXD_VECT)
 {
-    SERIAL_RXD_INT_ENTER()
+    SERIAL_SOFT_DEBUG_TGL();
+    SERIAL_SOFT_RXD_INT_ENTER()
 
     uint8_t data = 0;
-#ifdef SERIAL_BIT_ORDER_MSB
+
+#ifdef SERIAL_SOFT_BIT_ORDER_MSB
     uint8_t mask = 0x80;
 #else
     uint8_t mask = 0x01;
 #endif
+
+    uint8_t parity = 0;
+
     /* to center of start bit */
     _delay_us(WAIT_US/2);
+    SERIAL_SOFT_DEBUG_TGL();
     do {
         /* to center of next bit */
         _delay_us(WAIT_US);
 
-        if (SERIAL_RXD_READ()) {
+    SERIAL_SOFT_DEBUG_TGL();
+        if (SERIAL_SOFT_RXD_IN()) {
             data |= mask;
+            parity ^= 1;
         }
-#ifdef SERIAL_BIT_ORDER_MSB
+#ifdef SERIAL_SOFT_BIT_ORDER_MSB
         mask >>= 1;
 #else
         mask <<= 1;
 #endif
     } while (mask);
+
+#if defined(SERIAL_SOFT_PARITY_EVEN) || defined(SERIAL_SOFT_PARITY_ODD)
+    /* to center of parity bit */
+    _delay_us(WAIT_US);
+    if (SERIAL_SOFT_RXD_IN()) { parity ^= 1; }
+    SERIAL_SOFT_DEBUG_TGL();
+#endif
+
     /* to center of stop bit */
     _delay_us(WAIT_US);
 
     uint8_t next = (rbuf_head + 1) % RBUF_SIZE;
+#if defined(SERIAL_SOFT_PARITY_EVEN) || defined(SERIAL_SOFT_PARITY_ODD)
+    if ((parity == SERIAL_SOFT_PARITY_VAL) && next != rbuf_tail) {
+#else
     if (next != rbuf_tail) {
+#endif
         rbuf[rbuf_head] = data;
         rbuf_head = next;
     }
 
-    SERIAL_RXD_INT_EXIT();
+    SERIAL_SOFT_RXD_INT_EXIT();
+    SERIAL_SOFT_DEBUG_TGL();
 }
diff --git a/protocol/serial_uart.c b/protocol/serial_uart.c
new file mode 100644
index 0000000000..6c0af88175
--- /dev/null
+++ b/protocol/serial_uart.c
@@ -0,0 +1,93 @@
+/*
+Copyright 2013 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 "serial.h"
+
+
+void serial_init(void)
+{
+    SERIAL_UART_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;
+}
+
+int16_t serial_recv2(void)
+{
+    uint8_t data = 0;
+    if (rbuf_head == rbuf_tail) {
+        return -1;
+    }
+
+    data = rbuf[rbuf_tail];
+    rbuf_tail = (rbuf_tail + 1) % RBUF_SIZE;
+    return data;
+}
+
+void serial_send(uint8_t data)
+{
+    while (!SERIAL_UART_TXD_READY) ;
+    SERIAL_UART_DATA = data;
+}
+
+// USART RX complete interrupt
+ISR(SERIAL_UART_RXD_VECT)
+{
+    uint8_t next = (rbuf_head + 1) % RBUF_SIZE;
+    if (next != rbuf_tail) {
+        rbuf[rbuf_head] = SERIAL_UART_DATA;
+        rbuf_head = next;
+    }
+}
diff --git a/protocol/vusb/vusb.c b/protocol/vusb/vusb.c
index 1d5f4a8528..328885a9b5 100644
--- a/protocol/vusb/vusb.c
+++ b/protocol/vusb/vusb.c
@@ -88,6 +88,10 @@ static void send_keyboard(report_keyboard_t *report)
     } else {
         debug("kbuf: full\n");
     }
+
+    // NOTE: send key strokes of Macro
+    usbPoll();
+    vusb_transfer_keyboard();
 }
 
 
diff --git a/rules.mk b/rules.mk
index 2e4fce518f..7a40d1de9f 100644
--- a/rules.mk
+++ b/rules.mk
@@ -340,7 +340,8 @@ LST = $(patsubst %.c,$(OBJDIR)/%.lst,$(patsubst %.cpp,$(OBJDIR)/%.lst,$(patsubst
 
 
 # Compiler flags to generate dependency files.
-GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
+#GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
+GENDEPFLAGS = -MMD -MP -MF .dep/$(subst /,_,$@).d
 
 
 # Combine all necessary flags and optional flags.