keyboard stuff
auri.ee
1/*
2Copyright 2013 Jun Wako <wakojun@gmail.com>
3
4This program is free software: you can redistribute it and/or modify
5it under the terms of the GNU General Public License as published by
6the Free Software Foundation, either version 2 of the License, or
7(at your option) any later version.
8
9This program is distributed in the hope that it will be useful,
10but WITHOUT ANY WARRANTY; without even the implied warranty of
11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12GNU General Public License for more details.
13
14You should have received a copy of the GNU General Public License
15along with this program. If not, see <http://www.gnu.org/licenses/>.
16*/
17
18#pragma once
19
20#include "modifiers.h"
21
22/** \brief Action codes
23 *
24 * 16bit code: action_kind(4bit) + action_parameter(12bit)
25 *
26 * Key Actions(00xx)
27 * -----------------
28 * ACT_MODS(000r):
29 * 000r|0000|0000 0000 No action code
30 * 000r|0000|0000 0001 Transparent code
31 * 000r|0000| keycode Key
32 * 000r|mods|0000 0000 Modifiers
33 * 000r|mods| keycode Modifiers+Key(Modified key)
34 * r: Left/Right flag(Left:0, Right:1)
35 *
36 * ACT_MODS_TAP(001r):
37 * 001r|mods|0000 0000 Modifiers with OneShot
38 * 001r|mods|0000 0001 Modifiers with tap toggle
39 * 001r|mods|0000 00xx (reserved)
40 * 001r|mods| keycode Modifiers with Tap Key(Dual role)
41 *
42 * Other Keys(01xx)
43 * ----------------
44 * ACT_USAGE(0100): TODO: Not needed?
45 * 0100|00| usage(10) System control(0x80) - General Desktop page(0x01)
46 * 0100|01| usage(10) Consumer control(0x01) - Consumer page(0x0C)
47 * 0100|10| usage(10) (reserved)
48 * 0100|11| usage(10) (reserved)
49 *
50 * ACT_MOUSEKEY(0101): TODO: Merge these two actions to conserve space?
51 * 0101|xxxx| keycode Mouse key
52 *
53 * ACT_SWAP_HANDS(0110):
54 * 0110|xxxx| keycode Swap hands (keycode on tap, or options)
55 *
56 * 0111|xxxx xxxx xxxx (reserved)
57 *
58 * Layer Actions(10xx)
59 * -------------------
60 * ACT_LAYER(1000):
61 * 1000|oo00|pppE BBBB Default Layer Bitwise operation
62 * oo: operation(00:AND, 01:OR, 10:XOR, 11:SET)
63 * ppp: 4-bit chunk part(0-7)
64 * EBBBB: bits and extra bit
65 * 1000|ooee|pppE BBBB Layer Bitwise Operation
66 * oo: operation(00:AND, 01:OR, 10:XOR, 11:SET)
67 * ppp: 4-bit chunk part(0-7)
68 * EBBBB: bits and extra bit
69 * ee: on event(01:press, 10:release, 11:both)
70 *
71 * ACT_LAYER_MODS(1001):
72 * 1001|LLLL| mods Layer with modifiers held
73 *
74 * ACT_LAYER_TAP(101x):
75 * 101E|LLLL| keycode On/Off with tap key (0x00-DF)[TAP]
76 * 101E|LLLL|1110 mods On/Off with modifiers (0xE0-EF)[NOT TAP]
77 * 101E|LLLL|1111 0000 Invert with tap toggle (0xF0) [TAP]
78 * 101E|LLLL|1111 0001 On/Off (0xF1) [NOT TAP]
79 * 101E|LLLL|1111 0010 Off/On (0xF2) [NOT TAP]
80 * 101E|LLLL|1111 0011 Set/Clear (0xF3) [NOT TAP]
81 * 101E|LLLL|1111 0100 One Shot Layer (0xF4) [TAP]
82 * 101E|LLLL|1111 xxxx Reserved (0xF5-FF)
83 * ELLLL: layer 0-31(E: extra bit for layer 16-31)
84 */
85enum action_kind_id {
86 /* Key Actions */
87 ACT_MODS = 0b0000,
88 ACT_LMODS = 0b0000,
89 ACT_RMODS = 0b0001,
90 ACT_MODS_TAP = 0b0010,
91 ACT_LMODS_TAP = 0b0010,
92 ACT_RMODS_TAP = 0b0011,
93 /* Other Keys */
94 ACT_USAGE = 0b0100,
95 ACT_MOUSEKEY = 0b0101,
96 /* One-hand Support */
97 ACT_SWAP_HANDS = 0b0110,
98 /* Layer Actions */
99 ACT_LAYER = 0b1000,
100 ACT_LAYER_MODS = 0b1001,
101 ACT_LAYER_TAP = 0b1010, /* Layer 0-15 */
102 ACT_LAYER_TAP_EXT = 0b1011, /* Layer 16-31 */
103};
104
105/** \brief Action Code Struct
106 *
107 * NOTE:
108 * In avr-gcc bit field seems to be assigned from LSB(bit0) to MSB(bit15).
109 * AVR looks like a little endian in avr-gcc.
110 * Not portable across compiler/endianness?
111 *
112 * Byte order and bit order of 0x1234:
113 * Big endian: Little endian:
114 * -------------------- --------------------
115 * FEDC BA98 7654 3210 0123 4567 89AB CDEF
116 * 0001 0010 0011 0100 0010 1100 0100 1000
117 * 0x12 0x34 0x34 0x12
118 */
119typedef union {
120 uint16_t code;
121 struct action_kind {
122 uint16_t param : 12;
123 uint8_t id : 4;
124 } kind;
125 struct action_key {
126 uint8_t code : 8;
127 uint8_t mods : 4;
128 uint8_t kind : 4;
129 } key;
130 struct action_layer_bitop {
131 uint8_t bits : 4;
132 uint8_t xbit : 1;
133 uint8_t part : 3;
134 uint8_t on : 2;
135 uint8_t op : 2;
136 uint8_t kind : 4;
137 } layer_bitop;
138 struct action_layer_mods {
139 uint8_t mods : 8;
140 uint8_t layer : 4;
141 uint8_t kind : 4;
142 } layer_mods;
143 struct action_layer_tap {
144 uint8_t code : 8;
145 uint8_t val : 5;
146 uint8_t kind : 3;
147 } layer_tap;
148 struct action_usage {
149 uint16_t code : 10;
150 uint8_t page : 2;
151 uint8_t kind : 4;
152 } usage;
153 struct action_swap {
154 uint8_t code : 8;
155 uint8_t opt : 4;
156 uint8_t kind : 4;
157 } swap;
158} action_t;
159
160/* action utility */
161#define ACTION_NO 0
162#define ACTION_TRANSPARENT 1
163#define ACTION(kind, param) ((kind) << 12 | (param))
164
165enum mods_codes {
166 MODS_ONESHOT = 0x00,
167 MODS_TAP_TOGGLE = 0x01,
168};
169#define ACTION_KEY(key) ACTION(ACT_MODS, (key))
170#define ACTION_MODS(mods) ACTION(ACT_MODS, ((mods) & 0x1f) << 8 | 0)
171#define ACTION_MODS_KEY(mods, key) ACTION(ACT_MODS, ((mods) & 0x1f) << 8 | (key))
172#define ACTION_MODS_TAP_KEY(mods, key) ACTION(ACT_MODS_TAP, ((mods) & 0x1f) << 8 | (key))
173#define ACTION_MODS_ONESHOT(mods) ACTION(ACT_MODS_TAP, ((mods) & 0x1f) << 8 | MODS_ONESHOT)
174#define ACTION_MODS_TAP_TOGGLE(mods) ACTION(ACT_MODS_TAP, ((mods) & 0x1f) << 8 | MODS_TAP_TOGGLE)
175
176/** \brief Other Keys
177 */
178enum usage_pages {
179 PAGE_SYSTEM,
180 PAGE_CONSUMER,
181};
182
183#define ACTION_USAGE_SYSTEM(id) ACTION(ACT_USAGE, PAGE_SYSTEM << 10 | (id))
184#define ACTION_USAGE_CONSUMER(id) ACTION(ACT_USAGE, PAGE_CONSUMER << 10 | (id))
185#define ACTION_MOUSEKEY(key) ACTION(ACT_MOUSEKEY, key)
186
187/** \brief Layer Actions
188 */
189enum layer_param_on {
190 ON_PRESS = 1,
191 ON_RELEASE = 2,
192 ON_BOTH = 3,
193};
194
195/** \brief Layer Actions
196 */
197enum layer_param_bit_op {
198 OP_BIT_AND = 0,
199 OP_BIT_OR = 1,
200 OP_BIT_XOR = 2,
201 OP_BIT_SET = 3,
202};
203
204/** \brief Layer Actions
205 */
206enum layer_param_tap_op {
207 OP_TAP_TOGGLE = 0xF0,
208 OP_ON_OFF,
209 OP_OFF_ON,
210 OP_SET_CLEAR,
211 OP_ONESHOT,
212};
213#define ACTION_LAYER_BITOP(op, part, bits, on) ACTION(ACT_LAYER, (op) << 10 | (on) << 8 | (part) << 5 | ((bits) & 0x1f))
214#define ACTION_LAYER_TAP(layer, key) ACTION(ACT_LAYER_TAP, (layer) << 8 | (key))
215/* Default Layer */
216#define ACTION_DEFAULT_LAYER_SET(layer) ACTION_DEFAULT_LAYER_BIT_SET((layer) / 4, 1 << ((layer) % 4))
217/* Layer Operation */
218#define ACTION_LAYER_CLEAR(on) ACTION_LAYER_BIT_AND(0, 0, (on))
219#define ACTION_LAYER_MOMENTARY(layer) ACTION_LAYER_ON_OFF(layer)
220#define ACTION_LAYER_TOGGLE(layer) ACTION_LAYER_INVERT(layer, ON_RELEASE)
221#define ACTION_LAYER_INVERT(layer, on) ACTION_LAYER_BIT_XOR((layer) / 4, 1 << ((layer) % 4), (on))
222#define ACTION_LAYER_ON(layer, on) ACTION_LAYER_BIT_OR((layer) / 4, 1 << ((layer) % 4), (on))
223#define ACTION_LAYER_OFF(layer, on) ACTION_LAYER_BIT_AND((layer) / 4, ~(1 << ((layer) % 4)), (on))
224#define ACTION_LAYER_GOTO(layer) ACTION_LAYER_SET(layer, ON_PRESS)
225#define ACTION_LAYER_SET(layer, on) ACTION_LAYER_BIT_SET((layer) / 4, 1 << ((layer) % 4), (on))
226#define ACTION_LAYER_ON_OFF(layer) ACTION_LAYER_TAP((layer), OP_ON_OFF)
227#define ACTION_LAYER_OFF_ON(layer) ACTION_LAYER_TAP((layer), OP_OFF_ON)
228#define ACTION_LAYER_SET_CLEAR(layer) ACTION_LAYER_TAP((layer), OP_SET_CLEAR)
229#define ACTION_LAYER_ONESHOT(layer) ACTION_LAYER_TAP((layer), OP_ONESHOT)
230#define ACTION_LAYER_MODS(layer, mods) ACTION(ACT_LAYER_MODS, (layer) << 8 | (mods))
231/* With Tapping */
232#define ACTION_LAYER_TAP_KEY(layer, key) ACTION_LAYER_TAP((layer), (key))
233#define ACTION_LAYER_TAP_TOGGLE(layer) ACTION_LAYER_TAP((layer), OP_TAP_TOGGLE)
234/* Bitwise Operation */
235#define ACTION_LAYER_BIT_AND(part, bits, on) ACTION_LAYER_BITOP(OP_BIT_AND, (part), (bits), (on))
236#define ACTION_LAYER_BIT_OR(part, bits, on) ACTION_LAYER_BITOP(OP_BIT_OR, (part), (bits), (on))
237#define ACTION_LAYER_BIT_XOR(part, bits, on) ACTION_LAYER_BITOP(OP_BIT_XOR, (part), (bits), (on))
238#define ACTION_LAYER_BIT_SET(part, bits, on) ACTION_LAYER_BITOP(OP_BIT_SET, (part), (bits), (on))
239/* Default Layer Bitwise Operation */
240#define ACTION_DEFAULT_LAYER_BIT_AND(part, bits) ACTION_LAYER_BITOP(OP_BIT_AND, (part), (bits), 0)
241#define ACTION_DEFAULT_LAYER_BIT_OR(part, bits) ACTION_LAYER_BITOP(OP_BIT_OR, (part), (bits), 0)
242#define ACTION_DEFAULT_LAYER_BIT_XOR(part, bits) ACTION_LAYER_BITOP(OP_BIT_XOR, (part), (bits), 0)
243#define ACTION_DEFAULT_LAYER_BIT_SET(part, bits) ACTION_LAYER_BITOP(OP_BIT_SET, (part), (bits), 0)
244
245/* OneHand Support */
246enum swap_hands_param_tap_op {
247 OP_SH_TOGGLE = 0xF0,
248 OP_SH_TAP_TOGGLE,
249 OP_SH_ON_OFF,
250 OP_SH_OFF_ON,
251 OP_SH_OFF,
252 OP_SH_ON,
253 OP_SH_ONESHOT,
254};
255
256#define ACTION_SWAP_HANDS() ACTION_SWAP_HANDS_ON_OFF()
257#define ACTION_SWAP_HANDS_TOGGLE() ACTION(ACT_SWAP_HANDS, OP_SH_TOGGLE)
258#define ACTION_SWAP_HANDS_TAP_TOGGLE() ACTION(ACT_SWAP_HANDS, OP_SH_TAP_TOGGLE)
259#define ACTION_SWAP_HANDS_ONESHOT() ACTION(ACT_SWAP_HANDS, OP_SH_ONESHOT)
260#define ACTION_SWAP_HANDS_TAP_KEY(key) ACTION(ACT_SWAP_HANDS, key)
261#define ACTION_SWAP_HANDS_ON_OFF() ACTION(ACT_SWAP_HANDS, OP_SH_ON_OFF)
262#define ACTION_SWAP_HANDS_OFF_ON() ACTION(ACT_SWAP_HANDS, OP_SH_OFF_ON)
263#define ACTION_SWAP_HANDS_ON() ACTION(ACT_SWAP_HANDS, OP_SH_ON)
264#define ACTION_SWAP_HANDS_OFF() ACTION(ACT_SWAP_HANDS, OP_SH_OFF)