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qmk-firmware/common/action.h

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/*
Copyright 2012,2013 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 ACTION_H
#define ACTION_H
#include "keyboard.h"
/* Action struct.
*
* In avr-gcc bit field seems to be assigned from LSB(bit0) to MSB(bit15).
* AVR looks like a little endian in avr-gcc.
*
* NOTE: not portable across compiler/endianness?
* Byte order and bit order of 0x1234:
* Big endian: 15 ... 8 7 ... 210
* | 0x12 | 0x34 |
* 0001 0010 0011 0100
* Little endian: 012 ... 7 8 ... 15
* | 0x34 | 0x12 |
* 0010 1100 0100 1000
*/
typedef union {
uint16_t code;
struct action_kind {
uint16_t param :12;
uint16_t id :4;
} kind;
struct action_key {
uint16_t code :8;
uint16_t mods :4;
uint16_t kind :4;
} key;
struct action_layer {
uint16_t code :8;
uint16_t opt :4;
uint16_t kind :4;
} layer;
struct action_usage {
uint16_t code :10;
uint16_t page :2;
uint16_t kind :4;
} usage;
struct action_command {
uint16_t id :8;
uint16_t option :4;
uint16_t kind :4;
} command;
struct action_function {
uint8_t id :8;
uint8_t opt :4;
uint8_t kind :4;
} func;
} action_t;
/* Struct to record action and tap count */
typedef struct {
keyevent_t event;
uint8_t tap_count;
} keyrecord_t;
/* execute action per keyevent */
void action_exec(keyevent_t event);
typedef void (*action_func_t)(keyevent_t event, uint8_t opt); // TODO:no need?
void action_call_function(keyevent_t event, uint8_t id); // TODO: action function
/*
* Utilities for actions.
*/
void register_code(uint8_t code);
void unregister_code(uint8_t code);
void add_mods(uint8_t mods);
void del_mods(uint8_t mods);
void set_mods(uint8_t mods);
void clear_keyboard(void);
void clear_keyboard_but_mods(void);
bool sending_anykey(void);
void layer_switch(uint8_t new_layer);
bool is_tap_key(key_t key);
/*
* Action codes
* ============
* 16bit code: action_kind(4bit) + action_parameter(12bit)
*
Keyboard Keys
-------------
ACT_LMODS(0000):
0000|0000|000000|00 No action
0000|0000| keycode Key
0010|mods|000000|00 Left mods Momentary
0000|mods| keycode Key+Left mods
ACT_RMODS(0001):
0001|0000|000000|00 No action
0001|0000| keycode Key(no used)
0001|mods|000000|00 Right mods Momentary
0001|mods| keycode Key+Right mods
ACT_LMODS_TAP(0010):
0010|mods|000000|00 Left mods OneShot
0010|mods|000000|01 (reserved)
0010|mods|000000|10 (reserved)
0010|mods|000000|11 (reserved)
0010|mods| keycode Left mods+tap Key
ACT_RMODS_TAP(0011):
0011|mods|000000|00 Right mods OneShot
0011|mods|000000|01 (reserved)
0011|mods|000000|10 (reserved)
0011|mods|000000|11 (reserved)
0011|mods| keycode Right mods+tap Key
Other HID Usage
---------------
This action handles other usages than keyboard.
ACT_USAGE(0100):
0100|00| usage(10) System control(0x80) - General Desktop page(0x01)
0100|01| usage(10) Consumer control(0x01) - Consumer page(0x0C)
0100|10| usage(10) (reserved)
0100|11| usage(10) (reserved)
Mouse Keys
----------
ACT_MOUSEKEY(0110):
0101|XXXX| keycode Mouse key
Layer Actions
-------------
ACT_LAYER_PRESSED(1000): Set layer on key pressed
ACT_LAYER_RELEASED(1001): Set layer on key released
ACT_LAYER_BIT(1010): On/Off layer bit
ACT_LAYER_EXT(1011): Extentions
1000|LLLL|0000 0000 set layer L when pressed
1001|LLLL|0000 0000 set layer L when released
1010|BBBB|0000 0000 on/off bit B when pressed/released
1011|0000|0000 0000 set default layer when pressed
1011|0001|0000 0000 set default layer when released
1000|LLLL|1111 0000 set layer L when pressed + tap toggle
1001|LLLL|1111 0000 set layer L when released + tap toggle
1010|BBBB|1111 0000 on/off bit B when pressed/released + tap toggle
1011|0000|1111 0000 set default layer when pressed + tap toggle
1011|0001|1111 0000 set default layer when released + tap toggle
1000|LLLL|1111 1111 set L to default layer when pressed
1001|LLLL|1111 1111 set L to default layer when released
1010|BBBB|1111 1111 on/off bit B of default layer when pressed/released
1011|0000|1111 1111 set current to default layer when pressed
1011|0001|1111 1111 set current to default layer when released
1000|LLLL| keycode set layer L when pressed + tap key
1001|LLLL| keyocde set layer L when released + tap key
1010|BBBB| keyocde on/off bit B when pressed/released + tap key
1011|0000| keyocde set default layer when pressed + tap key
1011|0001| keyocde set default layer when released + tap key
Extensions(11XX)
----------------
NOTE: NOT FIXED
ACT_MACRO(1100):
1100|opt | id(8) Macro play?
1100|1111| id(8) Macro record?
ACT_COMMAND(1110):
1110|opt | id(8) Built-in Command exec
ACT_FUNCTION(1111):
1111| address(12) Function?
1111|opt | id(8) Function?
TODO: modifier + function by tap?
for example: LShift + '('[Shift+9] and RShift + ')'[Shift+0]
http://deskthority.net/workshop-f7/tmk-keyboard-firmware-collection-t4478.html#p90052
*/
enum action_kind_id {
ACT_LMODS = 0b0000,
ACT_RMODS = 0b0001,
ACT_LMODS_TAP = 0b0010,
ACT_RMODS_TAP = 0b0011,
ACT_USAGE = 0b0100,
ACT_MOUSEKEY = 0b0101,
ACT_LAYER_PRESSED = 0b1000,
ACT_LAYER_RELEASED = 0b1001,
ACT_LAYER_BIT = 0b1010,
ACT_LAYER_EXT = 0b1011,
ACT_MACRO = 0b1100,
ACT_COMMAND = 0b1110,
ACT_FUNCTION = 0b1111
};
enum acion_param {
ONE_SHOT = 0x00,
};
/* action_t utility */
#define ACTION_NO 0
#define ACTION(kind, param) ((kind)<<12 | (param))
/* Key & Mods */
#define ACTION_KEY(key) ACTION(ACT_LMODS, key)
#define ACTION_LMODS(mods) ACTION(ACT_LMODS, (mods)<<8 | 0x00)
#define ACTION_LMODS_KEY(mods, key) ACTION(ACT_LMODS, (mods)<<8 | (key))
#define ACTION_RMODS(mods) ACTION(ACT_RMODS, (mods)<<8 | 0x00)
#define ACTION_RMODS_KEY(mods, key) ACTION(ACT_RMODS, (mods)<<8 | (key))
/* Mods + Tap key */
#define MODS4(mods) (((mods)>>4 | (mods)) & 0x0F)
#define ACTION_LMODS_TAP(mods, key) ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | (key))
#define ACTION_LMODS_ONESHOT(mods) ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | ONE_SHOT)
#define ACTION_RMODS_TAP(mods, key) ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | (key))
#define ACTION_RMODS_ONESHOT(mods) ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | ONE_SHOT)
/* Switch current layer */
#define ACTION_LAYER_SET_ON_PRESSED(layer) ACTION(ACT_LAYER_PRESSED, (layer)<<8 | 0x00)
#define ACTION_LAYER_SET_ON_RELEASED(layer) ACTION(ACT_LAYER_RELEASED, (layer)<<8 | 0x00)
#define ACTION_LAYER_BIT(bits) ACTION(ACT_LAYER_BIT, (bits)<<8 | 0x00)
#define ACTION_LAYER_TO_DEFAULT_ON_PRESSED ACTION(ACT_LAYER_EXT, 0x0<<8 | 0x00)
#define ACTION_LAYER_TO_DEFAULT_ON_RELEASED ACTION(ACT_LAYER_EXT, 0x1<<8 | 0x00)
/* Switch default layer */
#define ACTION_LAYER_DEFAULT_SET_ON_PRESSED(layer) ACTION(ACT_LAYER_PRESSED, (layer)<<8 | 0xFF)
#define ACTION_LAYER_DEFAULT_SET_ON_RELEASED(layer) ACTION(ACT_LAYER_RELEASED, (layer)<<8 | 0xFF)
#define ACTION_LAYER_DEFAULT_BIT(bits) ACTION(ACT_LAYER_BIT, (bits)<<8 | 0xFF)
#define ACTION_LAYER_DEFAULT_SET_CURRENT_ON_PRESSED ACTION(ACT_LAYER_EXT, 0x0<<8 | 0xFF)
#define ACTION_LAYER_DEFAULT_SET_CURRENT_ON_RELEASED ACTION(ACT_LAYER_EXT, 0x1<<8 | 0xFF)
/* Layer switch with tap key */
#define ACTION_LAYER_SET_TAP_KEY(layer, key) ACTION(ACT_LAYER_PRESSED, (layer)<<8 | (key))
#define ACTION_LAYER_BIT_TAP_KEY(bits, key) ACTION(ACT_LAYER_BIT, (bits)<<8 | (key))
#define ACTION_LAYER_DEFAULT_SET_TAP_KEY(key) ACTION(ACT_LAYER_EXT, 0x0<<8 | (key))
/* with tap toggle */
#define ACTION_LAYER_SET_ON_PRESSED_TAP_TOGGLE(layer) ACTION(ACT_LAYER_PRESSED, (layer)<<8 | 0xF0)
#define ACTION_LAYER_SET_ON_RELEASED_TAP_TOGGLE(layer) ACTION(ACT_LAYER_RELEASED, (layer)<<8 | 0xF0)
#define ACTION_LAYER_BIT_TAP_TOGGLE(layer) ACTION(ACT_LAYER_BIT, (layer)<<8 | 0xF0)
#define ACTION_LAYER_DEFAULT_TAP_TOGGLE ACTION(ACT_LAYER_EXT, 0x0<<8 | 0xF0)
/* HID Usage */
#define ACTION_USAGE_PAGE_SYSTEM 0
#define ACTION_USAGE_PAGE_CONSUMER 1
#define ACTION_USAGE_SYSTEM(id) ACTION(ACT_USAGE, ACTION_USAGE_PAGE_SYSTEM<<10 | (id))
#define ACTION_USAGE_CONSUMER(id) ACTION(ACT_USAGE, ACTION_USAGE_PAGE_CONSUMER<<10 | (id))
/* Mousekey */
#define ACTION_MOUSEKEY(key) ACTION(ACT_MOUSEKEY, key)
/* Macro */
#define ACTION_MACRO(opt, id) ACTION(ACT_FUNCTION, (opt)<<8 | (addr))
/* Command */
#define ACTION_COMMAND(opt, id) ACTION(ACT_COMMAND, (opt)<<8 | (addr))
/* Function */
#define ACTION_FUNCTION(id, opt) ACTION(ACT_FUNCTION, (opt)<<8 | id)
#endif /* ACTION_H */
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