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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"
#include "keycode.h"
/* Struct to record event and tap count */
typedef struct {
keyevent_t event;
uint8_t tap_count;
} keyrecord_t;
/* 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;
uint8_t id :4;
} kind;
struct action_key {
uint8_t code :8;
uint8_t mods :4;
uint8_t kind :4;
} key;
struct action_layer {
uint8_t code :8;
uint8_t val :4;
uint8_t kind :4;
} layer;
struct action_usage {
uint16_t code :10;
uint8_t page :2;
uint8_t kind :4;
} usage;
struct action_command {
uint8_t id :8;
uint8_t opt :4;
uint8_t kind :4;
} command;
struct action_function {
uint8_t id :8;
uint8_t opt :4;
uint8_t kind :4;
} func;
} action_t;
/* 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);
/* user defined special function */
void action_function(keyrecord_t *record, uint8_t id, uint8_t opt);
/*
* 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);
bool waiting_buffer_has_anykey_pressed(void);
/*
* Action codes
* ============
* 16bit code: action_kind(4bit) + action_parameter(12bit)
*
* Keyboard Keys
* -------------
* ACT_LMODS(0000):
* 0000|0000|000000|00 No action
* 0000|0000|000000|01 Transparent
* 0000|0000| keycode Key
* 0000|mods|000000|00 Left mods
* 0000|mods| keycode Key & Left mods
*
* ACT_RMODS(0001):
* 0001|0000|000000|00 No action(not used)
* 0001|0000|000000|01 Transparent(not used)
* 0001|0000| keycode Key(no used)
* 0001|mods|000000|00 Right mods
* 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
* ----------
* 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)
*
*
*
* 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?
*
*/
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 = 0b1000,
ACT_LAYER_BIT = 0b1001,
ACT_MACRO = 0b1100,
ACT_COMMAND = 0b1110,
ACT_FUNCTION = 0b1111
};
/* action utility */
#define ACTION_NO 0
#define ACTION_TRANSPARENT 1
#define ACTION(kind, param) ((kind)<<12 | (param))
#define MODS4(mods) (((mods)>>4 | (mods)) & 0x0F)
/* 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 */
enum mods_codes {
MODS_ONESHOT = 0x00,
};
#define ACTION_LMODS_TAP_KEY(mods, key) ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | (key))
#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)
/*
* Switch layer
*/
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,
};
/*
* return to 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 */
/*
* Set 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)
/*
* Bit-op 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))
/* 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 */
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)
#endif /* ACTION_H */
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