346 lines
12 KiB
C
346 lines
12 KiB
C
/*
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Copyright 2012,2013 Jun Wako <wakojun@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ACTION_H
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#define ACTION_H
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#include "keyboard.h"
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#include "keycode.h"
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/* Struct to record event and tap count */
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typedef struct {
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keyevent_t event;
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uint8_t tap_count;
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} keyrecord_t;
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/* Action struct.
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*
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* In avr-gcc bit field seems to be assigned from LSB(bit0) to MSB(bit15).
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* AVR looks like a little endian in avr-gcc.
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*
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* NOTE: not portable across compiler/endianness?
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* Byte order and bit order of 0x1234:
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* Big endian: 15 ... 8 7 ... 210
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* | 0x12 | 0x34 |
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* 0001 0010 0011 0100
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* Little endian: 012 ... 7 8 ... 15
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* | 0x34 | 0x12 |
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* 0010 1100 0100 1000
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*/
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typedef union {
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uint16_t code;
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struct action_kind {
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uint16_t param :12;
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uint8_t id :4;
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} kind;
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struct action_key {
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uint8_t code :8;
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uint8_t mods :4;
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uint8_t kind :4;
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} key;
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struct action_layer {
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uint8_t code :8;
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uint8_t val :4;
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uint8_t kind :4;
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} layer;
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struct action_usage {
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uint16_t code :10;
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uint8_t page :2;
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uint8_t kind :4;
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} usage;
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struct action_command {
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uint8_t id :8;
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uint8_t opt :4;
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uint8_t kind :4;
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} command;
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struct action_function {
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uint8_t id :8;
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uint8_t opt :4;
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uint8_t kind :4;
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} func;
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} action_t;
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/* layer used currently */
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extern uint8_t current_layer;
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/* layer to return or start with */
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extern uint8_t default_layer;
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/* Execute action per keyevent */
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void action_exec(keyevent_t event);
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/* action for key */
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action_t action_for_key(uint8_t layer, key_t key);
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/* user defined special function */
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void action_function(keyrecord_t *record, uint8_t id, uint8_t opt);
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/*
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* Utilities for actions.
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*/
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void register_code(uint8_t code);
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void unregister_code(uint8_t code);
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void add_mods(uint8_t mods);
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void del_mods(uint8_t mods);
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void set_mods(uint8_t mods);
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void clear_keyboard(void);
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void clear_keyboard_but_mods(void);
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bool sending_anykey(void);
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void layer_switch(uint8_t new_layer);
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bool is_tap_key(key_t key);
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bool waiting_buffer_has_anykey_pressed(void);
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/*
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* Action codes
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* ============
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* 16bit code: action_kind(4bit) + action_parameter(12bit)
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*
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* Keyboard Keys
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* -------------
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* ACT_LMODS(0000):
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* 0000|0000|000000|00 No action
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* 0000|0000|000000|01 Transparent
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* 0000|0000| keycode Key
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* 0000|mods|000000|00 Left mods
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* 0000|mods| keycode Key & Left mods
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*
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* ACT_RMODS(0001):
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* 0001|0000|000000|00 No action(not used)
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* 0001|0000|000000|01 Transparent(not used)
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* 0001|0000| keycode Key(no used)
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* 0001|mods|000000|00 Right mods
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* 0001|mods| keycode Key & Right mods
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*
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* ACT_LMODS_TAP(0010):
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* 0010|mods|000000|00 Left mods OneShot
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* 0010|mods|000000|01 (reserved)
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* 0010|mods|000000|10 (reserved)
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* 0010|mods|000000|11 (reserved)
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* 0010|mods| keycode Left mods + tap Key
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*
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* ACT_RMODS_TAP(0011):
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* 0011|mods|000000|00 Right mods OneShot
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* 0011|mods|000000|01 (reserved)
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* 0011|mods|000000|10 (reserved)
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* 0011|mods|000000|11 (reserved)
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* 0011|mods| keycode Right mods + tap Key
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*
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*
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* Other HID Usage
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* ---------------
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* This action handles other usages than keyboard.
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* ACT_USAGE(0100):
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* 0100|00| usage(10) System control(0x80) - General Desktop page(0x01)
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* 0100|01| usage(10) Consumer control(0x01) - Consumer page(0x0C)
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* 0100|10| usage(10) (reserved)
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* 0100|11| usage(10) (reserved)
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*
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*
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* Mouse Keys
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* ----------
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* TODO: can be combined with 'Other HID Usage'? to save action kind id.
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* ACT_MOUSEKEY(0110):
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* 0101|XXXX| keycode Mouse key
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*
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*
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* Layer Actions
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* -------------
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* ACT_LAYER(1000): Set layer
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* ACT_LAYER_BIT(1001): Bit-op layer
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*
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* 1000|LLLL|0000 0000 set L to layer on press and set default on release(momentary)
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* 1000|LLLL|0000 0001 set L to layer on press
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* 1000|LLLL|0000 0010 set L to layer on release
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* 1000|----|0000 0011 set default to layer on both(return to default layer)
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* 1000|LLLL| keycode set L to layer while hold and send key on tap
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* 1000|LLLL|1111 0000 set L to layer while hold and toggle on several taps
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* 1000|LLLL|1111 1111 set L to default and layer(on press)
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*
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* 1001|BBBB|0000 0000 (not used)
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* 1001|BBBB|0000 0001 bit-xor layer with B on press
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* 1001|BBBB|0000 0010 bit-xor layer with B on release
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* 1001|BBBB|0000 0011 bit-xor layer with B on both(momentary)
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* 1001|BBBB| keycode bit-xor layer with B while hold and send key on tap
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* 1001|BBBB|1111 0000 bit-xor layer with B while hold and toggle on several taps
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* 1001|BBBB|1111 1111 bit-xor default with B and set layer(on press)
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*
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*
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*
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* Extensions(11XX)
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* ----------------
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* NOTE: NOT FIXED
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*
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* ACT_MACRO(1100):
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* 1100|opt | id(8) Macro play?
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* 1100|1111| id(8) Macro record?
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*
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* ACT_COMMAND(1110):
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* 1110|opt | id(8) Built-in Command exec
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*
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* ACT_FUNCTION(1111):
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* 1111| address(12) Function?
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* 1111|opt | id(8) Function?
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*
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*/
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enum action_kind_id {
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ACT_LMODS = 0b0000,
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ACT_RMODS = 0b0001,
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ACT_LMODS_TAP = 0b0010,
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ACT_RMODS_TAP = 0b0011,
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ACT_USAGE = 0b0100,
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ACT_MOUSEKEY = 0b0101,
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ACT_LAYER = 0b1000,
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ACT_LAYER_BIT = 0b1001,
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ACT_MACRO = 0b1100,
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ACT_COMMAND = 0b1110,
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ACT_FUNCTION = 0b1111
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};
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/* action utility */
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#define ACTION_NO 0
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#define ACTION_TRANSPARENT 1
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#define ACTION(kind, param) ((kind)<<12 | (param))
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#define MODS4(mods) (((mods)>>4 | (mods)) & 0x0F)
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/* Key */
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#define ACTION_KEY(key) ACTION(ACT_LMODS, key)
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/* Mods & key */
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#define ACTION_LMODS(mods) ACTION(ACT_LMODS, MODS4(mods)<<8 | 0x00)
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#define ACTION_LMODS_KEY(mods, key) ACTION(ACT_LMODS, MODS4(mods)<<8 | (key))
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#define ACTION_RMODS(mods) ACTION(ACT_RMODS, MODS4(mods)<<8 | 0x00)
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#define ACTION_RMODS_KEY(mods, key) ACTION(ACT_RMODS, MODS4(mods)<<8 | (key))
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/* Mod & key */
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#define ACTION_LMOD(mod) ACTION(ACT_LMODS, MODS4(MOD_BIT(mod))<<8 | 0x00)
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#define ACTION_LMOD_KEY(mod, key) ACTION(ACT_LMODS, MODS4(MOD_BIT(mod))<<8 | (key))
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#define ACTION_RMOD(mod) ACTION(ACT_RMODS, MODS4(MOD_BIT(mod))<<8 | 0x00)
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#define ACTION_RMOD_KEY(mod, key) ACTION(ACT_RMODS, MODS4(MOD_BIT(mod))<<8 | (key))
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/* Mods + Tap key */
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enum mods_codes {
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MODS_ONESHOT = 0x00,
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};
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#define ACTION_LMODS_TAP_KEY(mods, key) ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | (key))
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#define ACTION_LMODS_ONESHOT(mods) ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
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#define ACTION_RMODS_TAP_KEY(mods, key) ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | (key))
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#define ACTION_RMODS_ONESHOT(mods) ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
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/* Mod + Tap key */
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#define ACTION_LMOD_TAP_KEY(mod, key) ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
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#define ACTION_LMOD_ONESHOT(mod) ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
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#define ACTION_RMOD_TAP_KEY(mod, key) ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
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#define ACTION_RMOD_ONESHOT(mod) ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
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/*
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* Switch layer
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*/
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enum layer_codes {
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LAYER_MOMENTARY = 0,
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LAYER_ON_PRESS = 1,
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LAYER_ON_RELEASE = 2,
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LAYER_DEFAULT =3,
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LAYER_TAP_TOGGLE = 0xF0,
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LAYER_CHANGE_DEFAULT = 0xFF
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};
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enum layer_vals_default {
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DEFAULT_ON_PRESS = 1,
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DEFAULT_ON_RELEASE = 2,
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DEFAULT_ON_BOTH = 3,
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};
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/*
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* return to default layer
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*/
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#define ACTION_LAYER_DEFAULT ACTION_LAYER_DEFAULT_R
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/* set default layer on press */
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#define ACTION_LAYER_DEFAULT_P ACTION(ACT_LAYER, DEFAULT_ON_PRESS<<8 | LAYER_DEFAULT)
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/* set default layer on release */
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#define ACTION_LAYER_DEFAULT_R ACTION(ACT_LAYER, DEFAULT_ON_RELEASE<<8 | LAYER_DEFAULT)
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/* change default layer and set layer */
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/*
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* Set layer
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*/
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/* set layer on press and none on release */
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#define ACTION_LAYER_SET(layer) ACTION_LAYER_SET_P(layer)
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/* set layer on press and set default on release (This is needed by legacy keymap support.) */
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#define ACTION_LAYER_SET_MOMENTARY(layer) ACTION(ACT_LAYER, (layer)<<8 | LAYER_MOMENTARY)
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/* set layer on press and none on release */
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#define ACTION_LAYER_SET_TOGGLE(layer) ACTION_LAYER_SET_R(layer)
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/* set layer while hold and send key on tap */
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#define ACTION_LAYER_SET_TAP_KEY(layer, key) ACTION(ACT_LAYER, (layer)<<8 | (key))
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/* set layer on press */
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#define ACTION_LAYER_SET_P(layer) ACTION(ACT_LAYER, (layer)<<8 | LAYER_ON_PRESS)
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/* set layer on release */
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#define ACTION_LAYER_SET_R(layer) ACTION(ACT_LAYER, (layer)<<8 | LAYER_ON_RELEASE)
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/* set layer on hold and toggle on several taps */
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#define ACTION_LAYER_SET_TAP_TOGGLE(layer) ACTION(ACT_LAYER, (layer)<<8 | LAYER_TAP_TOGGLE)
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/* set default layer on both press and release */
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#define ACTION_LAYER_SET_DEFAULT(layer) ACTION(ACT_LAYER, (layer)<<8 | LAYER_CHANGE_DEFAULT)
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/*
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* Bit-op layer
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*/
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/* bit-xor on both press and release */
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#define ACTION_LAYER_BIT(bits) ACTION_LAYER_BIT_MOMENTARY(bits)
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#define ACTION_LAYER_BIT_MOMENTARY(bits) ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_MOMENTARY)
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/* bit-xor on press */
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#define ACTION_LAYER_BIT_TOGGLE(bits) ACTION_LAYER_BIT_R(bits)
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/* bit-xor while hold and send key on tap */
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#define ACTION_LAYER_BIT_TAP_KEY(bits, key) ACTION(ACT_LAYER_BIT, (bits)<<8 | (key))
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/* bit-xor on press */
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#define ACTION_LAYER_BIT_P(bits) ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_ON_PRESS)
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/* bit-xor on release */
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#define ACTION_LAYER_BIT_R(bits) ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_ON_RELEASE)
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/* bit-xor while hold and toggle on several taps */
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#define ACTION_LAYER_BIT_TAP_TOGGLE(bits) ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_TAP_TOGGLE)
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/* bit-xor default layer and set layer */
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#define ACTION_LAYER_BIT_DEFAULT(bits) ACTION(ACT_LAYER, (bits)<<8 | LAYER_CHANGE_DEFAULT)
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/* HID Usage */
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enum usage_pages {
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PAGE_SYSTEM,
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PAGE_CONSUMER
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};
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#define ACTION_USAGE_SYSTEM(id) ACTION(ACT_USAGE, PAGE_SYSTEM<<10 | (id))
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#define ACTION_USAGE_CONSUMER(id) ACTION(ACT_USAGE, PAGE_CONSUMER<<10 | (id))
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/* Mousekey */
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#define ACTION_MOUSEKEY(key) ACTION(ACT_MOUSEKEY, key)
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/* Macro */
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#define ACTION_MACRO(opt, id) ACTION(ACT_FUNCTION, (opt)<<8 | (addr))
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/* Command */
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#define ACTION_COMMAND(opt, id) ACTION(ACT_COMMAND, (opt)<<8 | (addr))
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/* Function */
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enum function_opts {
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FUNC_TAP = 0x8, /* indciates function is tappable */
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};
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#define ACTION_FUNCTION(id, opt) ACTION(ACT_FUNCTION, (opt)<<8 | id)
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#define ACTION_FUNCTION_TAP(id) ACTION(ACT_FUNCTION, FUNC_TAP<<8 | id)
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#endif /* ACTION_H */
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