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/*
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 ACTION_CODE_H
#define ACTION_CODE_H
/** \brief Action codes
*
* 16bit code: action_kind(4bit) + action_parameter(12bit)
*
* Key Actions(00xx)
* -----------------
* ACT_MODS(000r):
* 000r|0000|0000 0000 No action code
* 000r|0000|0000 0001 Transparent code
* 000r|0000| keycode Key
* 000r|mods|0000 0000 Modifiers
* 000r|mods| keycode Modifiers+Key(Modified key)
* r: Left/Right flag(Left:0, Right:1)
*
* ACT_MODS_TAP(001r):
* 001r|mods|0000 0000 Modifiers with OneShot
* 001r|mods|0000 0001 Modifiers with tap toggle
* 001r|mods|0000 00xx (reserved)
* 001r|mods| keycode Modifiers with Tap Key(Dual role)
*
* Other Keys(01xx)
* ----------------
* ACT_USAGE(0100): TODO: Not needed?
* 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)
*
* ACT_MOUSEKEY(0101): TODO: Merge these two actions to conserve space?
* 0101|xxxx| keycode Mouse key
*
* ACT_SWAP_HANDS(0110):
* 0110|xxxx| keycode Swap hands (keycode on tap, or options)
*
* 0111|xxxx xxxx xxxx (reserved)
*
* Layer Actions(10xx)
* -------------------
* ACT_LAYER(1000):
* 1000|oo00|pppE BBBB Default Layer Bitwise operation
* oo: operation(00:AND, 01:OR, 10:XOR, 11:SET)
* ppp: 4-bit chunk part(0-7)
* EBBBB: bits and extra bit
* 1000|ooee|pppE BBBB Layer Bitwise Operation
* oo: operation(00:AND, 01:OR, 10:XOR, 11:SET)
* ppp: 4-bit chunk part(0-7)
* EBBBB: bits and extra bit
* ee: on event(01:press, 10:release, 11:both)
*
* ACT_LAYER_MODS(1001):
* 1001|LLLL| mods Layer with modifiers held
*
* ACT_LAYER_TAP(101x):
* 101E|LLLL| keycode On/Off with tap key (0x00-DF)[TAP]
* 101E|LLLL|1110 mods On/Off with modifiers (0xE0-EF)[NOT TAP]
* 101E|LLLL|1111 0000 Invert with tap toggle (0xF0) [TAP]
* 101E|LLLL|1111 0001 On/Off (0xF1) [NOT TAP]
* 101E|LLLL|1111 0010 Off/On (0xF2) [NOT TAP]
* 101E|LLLL|1111 0011 Set/Clear (0xF3) [NOT TAP]
* 101E|LLLL|1111 0100 One Shot Layer (0xF4) [TAP]
* 101E|LLLL|1111 xxxx Reserved (0xF5-FF)
* ELLLL: layer 0-31(E: extra bit for layer 16-31)
*
* Extensions(11xx)
* ----------------
* ACT_MACRO(1100):
* 1100|opt | id(8) Macro play?
* 1100|1111| id(8) Macro record?
*
* 1101|xxxx xxxx xxxx (reserved)
* 1110|xxxx xxxx xxxx (reserved)
*
* ACT_FUNCTION(1111):
* 1111| address(12) Function?
* 1111|opt | id(8) Function?
*/
enum action_kind_id {
/* Key Actions */
ACT_MODS = 0b0000,
ACT_LMODS = 0b0000,
ACT_RMODS = 0b0001,
ACT_MODS_TAP = 0b0010,
ACT_LMODS_TAP = 0b0010,
ACT_RMODS_TAP = 0b0011,
/* Other Keys */
ACT_USAGE = 0b0100,
ACT_MOUSEKEY = 0b0101,
/* One-hand Support */
ACT_SWAP_HANDS = 0b0110,
/* Layer Actions */
ACT_LAYER = 0b1000,
ACT_LAYER_MODS = 0b1001,
ACT_LAYER_TAP = 0b1010, /* Layer 0-15 */
ACT_LAYER_TAP_EXT = 0b1011, /* Layer 16-31 */
/* Extensions */
ACT_MACRO = 0b1100,
ACT_FUNCTION = 0b1111
};
/** \brief Action Code Struct
*
* NOTE:
* In avr-gcc bit field seems to be assigned from LSB(bit0) to MSB(bit15).
* AVR looks like a little endian in avr-gcc.
* Not portable across compiler/endianness?
*
* Byte order and bit order of 0x1234:
* Big endian: Little endian:
* -------------------- --------------------
* FEDC BA98 7654 3210 0123 4567 89AB CDEF
* 0001 0010 0011 0100 0010 1100 0100 1000
* 0x12 0x34 0x34 0x12
*/
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_bitop {
uint8_t bits : 4;
uint8_t xbit : 1;
uint8_t part : 3;
uint8_t on : 2;
uint8_t op : 2;
uint8_t kind : 4;
} layer_bitop;
struct action_layer_mods {
uint8_t mods : 8;
uint8_t layer : 4;
uint8_t kind : 4;
} layer_mods;
struct action_layer_tap {
uint8_t code : 8;
uint8_t val : 5;
uint8_t kind : 3;
} layer_tap;
struct action_usage {
uint16_t code : 10;
uint8_t page : 2;
uint8_t kind : 4;
} usage;
struct action_function {
uint8_t id : 8;
uint8_t opt : 4;
uint8_t kind : 4;
} func;
struct action_swap {
uint8_t code : 8;
uint8_t opt : 4;
uint8_t kind : 4;
} swap;
} action_t;
/* action utility */
#define ACTION_NO 0
#define ACTION_TRANSPARENT 1
#define ACTION(kind, param) ((kind) << 12 | (param))
/** \brief Key Actions
*
* Mod bits: 43210
* bit 0 ||||+- Control
* bit 1 |||+-- Shift
* bit 2 ||+--- Alt
* bit 3 |+---- Gui
* bit 4 +----- LR flag(Left:0, Right:1)
*/
enum mods_bit {
MOD_LCTL = 0x01,
MOD_LSFT = 0x02,
MOD_LALT = 0x04,
MOD_LGUI = 0x08,
MOD_RCTL = 0x11,
MOD_RSFT = 0x12,
MOD_RALT = 0x14,
MOD_RGUI = 0x18,
};
enum mods_codes {
MODS_ONESHOT = 0x00,
MODS_TAP_TOGGLE = 0x01,
};
#define ACTION_KEY(key) ACTION(ACT_MODS, (key))
#define ACTION_MODS(mods) ACTION(ACT_MODS, ((mods)&0x1f) << 8 | 0)
#define ACTION_MODS_KEY(mods, key) ACTION(ACT_MODS, ((mods)&0x1f) << 8 | (key))
#define ACTION_MODS_TAP_KEY(mods, key) ACTION(ACT_MODS_TAP, ((mods)&0x1f) << 8 | (key))
#define ACTION_MODS_ONESHOT(mods) ACTION(ACT_MODS_TAP, ((mods)&0x1f) << 8 | MODS_ONESHOT)
#define ACTION_MODS_TAP_TOGGLE(mods) ACTION(ACT_MODS_TAP, ((mods)&0x1f) << 8 | MODS_TAP_TOGGLE)
/** \brief Other Keys
*/
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_MOUSEKEY(key) ACTION(ACT_MOUSEKEY, key)
/** \brief Layer Actions
*/
enum layer_param_on {
ON_PRESS = 1,
ON_RELEASE = 2,
ON_BOTH = 3,
};
/** \brief Layer Actions
*/
enum layer_param_bit_op {
OP_BIT_AND = 0,
OP_BIT_OR = 1,
OP_BIT_XOR = 2,
OP_BIT_SET = 3,
};
/** \brief Layer Actions
*/
enum layer_param_tap_op {
OP_TAP_TOGGLE = 0xF0,
OP_ON_OFF,
OP_OFF_ON,
OP_SET_CLEAR,
OP_ONESHOT,
};
#define ACTION_LAYER_BITOP(op, part, bits, on) ACTION(ACT_LAYER, (op) << 10 | (on) << 8 | (part) << 5 | ((bits)&0x1f))
#define ACTION_LAYER_TAP(layer, key) ACTION(ACT_LAYER_TAP, (layer) << 8 | (key))
/* Default Layer */
#define ACTION_DEFAULT_LAYER_SET(layer) ACTION_DEFAULT_LAYER_BIT_SET((layer) / 4, 1 << ((layer) % 4))
/* Layer Operation */
#define ACTION_LAYER_CLEAR(on) ACTION_LAYER_BIT_AND(0, 0, (on))
#define ACTION_LAYER_MOMENTARY(layer) ACTION_LAYER_ON_OFF(layer)
#define ACTION_LAYER_TOGGLE(layer) ACTION_LAYER_INVERT(layer, ON_RELEASE)
#define ACTION_LAYER_INVERT(layer, on) ACTION_LAYER_BIT_XOR((layer) / 4, 1 << ((layer) % 4), (on))
#define ACTION_LAYER_ON(layer, on) ACTION_LAYER_BIT_OR((layer) / 4, 1 << ((layer) % 4), (on))
#define ACTION_LAYER_OFF(layer, on) ACTION_LAYER_BIT_AND((layer) / 4, ~(1 << ((layer) % 4)), (on))
#define ACTION_LAYER_SET(layer, on) ACTION_LAYER_BIT_SET((layer) / 4, 1 << ((layer) % 4), (on))
#define ACTION_LAYER_ON_OFF(layer) ACTION_LAYER_TAP((layer), OP_ON_OFF)
#define ACTION_LAYER_OFF_ON(layer) ACTION_LAYER_TAP((layer), OP_OFF_ON)
#define ACTION_LAYER_SET_CLEAR(layer) ACTION_LAYER_TAP((layer), OP_SET_CLEAR)
#define ACTION_LAYER_ONESHOT(layer) ACTION_LAYER_TAP((layer), OP_ONESHOT)
#define ACTION_LAYER_MODS(layer, mods) ACTION(ACT_LAYER_MODS, (layer) << 8 | (mods))
/* With Tapping */
#define ACTION_LAYER_TAP_KEY(layer, key) ACTION_LAYER_TAP((layer), (key))
#define ACTION_LAYER_TAP_TOGGLE(layer) ACTION_LAYER_TAP((layer), OP_TAP_TOGGLE)
/* Bitwise Operation */
#define ACTION_LAYER_BIT_AND(part, bits, on) ACTION_LAYER_BITOP(OP_BIT_AND, (part), (bits), (on))
#define ACTION_LAYER_BIT_OR(part, bits, on) ACTION_LAYER_BITOP(OP_BIT_OR, (part), (bits), (on))
#define ACTION_LAYER_BIT_XOR(part, bits, on) ACTION_LAYER_BITOP(OP_BIT_XOR, (part), (bits), (on))
#define ACTION_LAYER_BIT_SET(part, bits, on) ACTION_LAYER_BITOP(OP_BIT_SET, (part), (bits), (on))
/* Default Layer Bitwise Operation */
#define ACTION_DEFAULT_LAYER_BIT_AND(part, bits) ACTION_LAYER_BITOP(OP_BIT_AND, (part), (bits), 0)
#define ACTION_DEFAULT_LAYER_BIT_OR(part, bits) ACTION_LAYER_BITOP(OP_BIT_OR, (part), (bits), 0)
#define ACTION_DEFAULT_LAYER_BIT_XOR(part, bits) ACTION_LAYER_BITOP(OP_BIT_XOR, (part), (bits), 0)
#define ACTION_DEFAULT_LAYER_BIT_SET(part, bits) ACTION_LAYER_BITOP(OP_BIT_SET, (part), (bits), 0)
/* Macro */
#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))
/* Function */
enum function_opts {
FUNC_TAP = 0x8, /* indciates function is tappable */
};
#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))
/* OneHand Support */
enum swap_hands_param_tap_op {
OP_SH_TOGGLE = 0xF0,
OP_SH_TAP_TOGGLE,
OP_SH_ON_OFF,
OP_SH_OFF_ON,
OP_SH_OFF,
OP_SH_ON,
OP_SH_ONESHOT,
};
#define ACTION_SWAP_HANDS() ACTION_SWAP_HANDS_ON_OFF()
#define ACTION_SWAP_HANDS_TOGGLE() ACTION(ACT_SWAP_HANDS, OP_SH_TOGGLE)
#define ACTION_SWAP_HANDS_TAP_TOGGLE() ACTION(ACT_SWAP_HANDS, OP_SH_TAP_TOGGLE)
#define ACTION_SWAP_HANDS_ONESHOT() ACTION(ACT_SWAP_HANDS, OP_SH_ONESHOT)
#define ACTION_SWAP_HANDS_TAP_KEY(key) ACTION(ACT_SWAP_HANDS, key)
#define ACTION_SWAP_HANDS_ON_OFF() ACTION(ACT_SWAP_HANDS, OP_SH_ON_OFF)
#define ACTION_SWAP_HANDS_OFF_ON() ACTION(ACT_SWAP_HANDS, OP_SH_OFF_ON)
#define ACTION_SWAP_HANDS_ON() ACTION(ACT_SWAP_HANDS, OP_SH_ON)
#define ACTION_SWAP_HANDS_OFF() ACTION(ACT_SWAP_HANDS, OP_SH_OFF)
#endif /* ACTION_CODE_H */
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