common/action.h

   1 /*
   2 Copyright 2012,2013 Jun Wako <wakojun@gmail.com>
   3
   4 This program is free software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17 #ifndef ACTION_H
  18 #define ACTION_H
  19
  20 #include "keyboard.h"
  21 #include "keycode.h"
  22
  23
  24 /* Execute action per keyevent */
  25 void action_exec(keyevent_t event);
  26
  27
  28 /* Struct to record event and tap count  */
  29 typedef struct {
  30     keyevent_t  event;
  31     uint8_t     tap_count;
  32 } keyrecord_t;
  33
  34 /* Action struct.
  35  *
  36  * In avr-gcc bit field seems to be assigned from LSB(bit0) to MSB(bit15).
  37  * AVR looks like a little endian in avr-gcc.
  38  *
  39  * NOTE: not portable across compiler/endianness?
  40  * Byte order and bit order of 0x1234:
  41  * Big endian:     15 ...  8 7 ... 210
  42  *                |  0x12   |  0x34   |
  43  *                 0001 0010 0011 0100
  44  * Little endian:  012 ... 7  8 ... 15
  45  *                |  0x34   |  0x12   |
  46  *                 0010 1100 0100 1000
  47  */
  48 typedef union {
  49     uint16_t code;
  50     struct action_kind {
  51         uint16_t param  :12;
  52         uint8_t  id     :4;
  53     } kind;
  54     struct action_key {
  55         uint8_t  code   :8;
  56         uint8_t  mods   :4;
  57         uint8_t  kind   :4;
  58     } key;
  59     struct action_layer {
  60         uint8_t  code   :8;
  61         uint8_t  val    :4;
  62         uint8_t  kind   :4;
  63     } layer;
  64     struct action_usage {
  65         uint16_t code   :10;
  66         uint8_t  page   :2;
  67         uint8_t  kind   :4;
  68     } usage;
  69     struct action_command {
  70         uint8_t  id     :8;
  71         uint8_t  opt    :4;
  72         uint8_t  kind   :4;
  73     } command;
  74     struct action_function {
  75         uint8_t  id     :8;
  76         uint8_t  opt    :4;
  77         uint8_t  kind   :4;
  78     } func;
  79 } action_t;
  80
  81
  82 /*
  83  * Utilities for actions.
  84  */
  85 void register_code(uint8_t code);
  86 void unregister_code(uint8_t code);
  87 void add_mods(uint8_t mods);
  88 void del_mods(uint8_t mods);
  89 void set_mods(uint8_t mods);
  90 void clear_keyboard(void);
  91 void clear_keyboard_but_mods(void);
  92 bool sending_anykey(void);
  93 void layer_switch(uint8_t new_layer);
  94 bool is_tap_key(key_t key);
  95 bool waiting_buffer_has_anykey_pressed(void);
  96
  97
  98
  99
 100 /*
 101  * Action codes
 102  * ============
 103  * 16bit code: action_kind(4bit) + action_parameter(12bit)
 104  *
 105 Keyboard Keys
 106 -------------
 107 ACT_LMODS(0000):
 108 0000|0000|000000|00    No action
 109 0000|0000| keycode     Key
 110 0000|mods|000000|00    Left mods
 111 0000|mods| keycode     Key & Left mods
 112
 113 ACT_RMODS(0001):
 114 0001|0000|000000|00    No action
 115 0001|0000| keycode     Key(no used)
 116 0001|mods|000000|00    Right mods
 117 0001|mods| keycode     Key & Right mods
 118
 119 ACT_LMODS_TAP(0010):
 120 0010|mods|000000|00    Left mods OneShot
 121 0010|mods|000000|01    (reserved)
 122 0010|mods|000000|10    (reserved)
 123 0010|mods|000000|11    (reserved)
 124 0010|mods| keycode     Left mods + tap Key
 125
 126 ACT_RMODS_TAP(0011):
 127 0011|mods|000000|00    Right mods OneShot
 128 0011|mods|000000|01    (reserved)
 129 0011|mods|000000|10    (reserved)
 130 0011|mods|000000|11    (reserved)
 131 0011|mods| keycode     Right mods + tap Key
 132
 133
 134 Other HID Usage
 135 ---------------
 136 This action handles other usages than keyboard.
 137 ACT_USAGE(0100):
 138 0100|00| usage(10)     System control(0x80) - General Desktop page(0x01)
 139 0100|01| usage(10)     Consumer control(0x01) - Consumer page(0x0C)
 140 0100|10| usage(10)     (reserved)
 141 0100|11| usage(10)     (reserved)
 142
 143
 144 Mouse Keys
 145 ----------
 146 TODO: can be combined with 'Other HID Usage'? to save action kind id.
 147 ACT_MOUSEKEY(0110):
 148 0101|XXXX| keycode     Mouse key
 149
 150
 151 Layer Actions
 152 -------------
 153 ACT_LAYER(1000):            Set layer
 154 ACT_LAYER_BIT(1001):        Bit-op layer
 155
 156 1000|LLLL|0000 0000   set L to layer on press and set default on release(momentary)
 157 1000|LLLL|0000 0001   set L to layer on press
 158 1000|LLLL|0000 0010   set L to layer on release
 159 1000|----|0000 0011   set default to layer on both(return to default layer)
 160 1000|LLLL|xxxx xxxx   set L to layer while hold and send key on tap
 161 1000|LLLL|1111 0000   set L to layer while hold and toggle on several taps
 162 1000|LLLL|1111 1111   set L to default and layer(on press)
 163
 164 1001|BBBB|0000 0000   (not used)
 165 1001|BBBB|0000 0001   bit-xor layer with B on press
 166 1001|BBBB|0000 0010   bit-xor layer with B on release
 167 1001|BBBB|0000 0011   bit-xor layer with B on both(momentary)
 168 1001|BBBB|xxxx xxxx   bit-xor layer with B while hold and send key on tap
 169 1001|BBBB|1111 0000   bit-xor layer with B while hold and toggle on several taps
 170 1001|BBBB|1111 1111   bit-xor default with B and set layer(on press)
 171
 172
 173
 174 Extensions(11XX)
 175 ----------------
 176 NOTE: NOT FIXED
 177
 178 ACT_MACRO(1100):
 179 1100|opt | id(8)      Macro play?
 180 1100|1111| id(8)      Macro record?
 181
 182 ACT_COMMAND(1110):
 183 1110|opt | id(8)      Built-in Command exec
 184
 185 ACT_FUNCTION(1111):
 186 1111| address(12)     Function?
 187 1111|opt | id(8)      Function?
 188
 189  */
 190 enum action_kind_id {
 191     ACT_LMODS           = 0b0000,
 192     ACT_RMODS           = 0b0001,
 193     ACT_LMODS_TAP       = 0b0010,
 194     ACT_RMODS_TAP       = 0b0011,
 195
 196     ACT_USAGE           = 0b0100,
 197     ACT_MOUSEKEY        = 0b0101,
 198
 199     ACT_LAYER           = 0b1000,
 200     ACT_LAYER_BIT       = 0b1001,
 201
 202     ACT_MACRO           = 0b1100,
 203     ACT_COMMAND         = 0b1110,
 204     ACT_FUNCTION        = 0b1111
 205 };
 206
 207
 208 /* action utility */
 209 #define ACTION_NO                       0
 210 #define ACTION(kind, param)             ((kind)<<12 | (param))
 211 #define MODS4(mods)                     (((mods)>>4 | (mods)) & 0x0F)
 212
 213 /* Key */
 214 #define ACTION_KEY(key)                 ACTION(ACT_LMODS,    key)
 215 /* Mods & key */
 216 #define ACTION_LMODS(mods)              ACTION(ACT_LMODS,    (mods)<<8 | 0x00)
 217 #define ACTION_LMODS_KEY(mods, key)     ACTION(ACT_LMODS,    (mods)<<8 | (key))
 218 #define ACTION_RMODS(mods)              ACTION(ACT_RMODS,    (mods)<<8 | 0x00)
 219 #define ACTION_RMODS_KEY(mods, key)     ACTION(ACT_RMODS,    (mods)<<8 | (key))
 220 /* Mod & key */
 221 #define ACTION_LMOD(mod)                ACTION(ACT_LMODS,    MODS4(MOD_BIT(mod))<<8 | 0x00)
 222 #define ACTION_LMOD_KEY(mod, key)       ACTION(ACT_LMODS,    MODS4(MOD_BIT(mod))<<8 | (key))
 223 #define ACTION_RMOD(mod)                ACTION(ACT_RMODS,    MODS4(MOD_BIT(mod))<<8 | 0x00)
 224 #define ACTION_RMOD_KEY(mod, key)       ACTION(ACT_RMODS,    MODS4(MOD_BIT(mod))<<8 | (key))
 225
 226 /* Mods + Tap key */
 227 enum mods_codes {
 228     MODS_ONESHOT           = 0x00,
 229 };
 230 #define ACTION_LMODS_TAP_KEY(mods, key) ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | (key))
 231 #define ACTION_LMODS_ONESHOT(mods)      ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
 232 #define ACTION_RMODS_TAP_KEY(mods, key) ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | (key))
 233 #define ACTION_RMODS_ONESHOT(mods)      ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
 234 /* Mod + Tap key */
 235 #define ACTION_LMOD_TAP_KEY(mod, key)   ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
 236 #define ACTION_LMOD_ONESHOT(mod)        ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
 237 #define ACTION_RMOD_TAP_KEY(mod, key)   ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
 238 #define ACTION_RMOD_ONESHOT(mod)        ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
 239
 240
 241 /*
 242  * Switch layer
 243  */
 244 enum layer_codes {
 245     LAYER_MOMENTARY = 0,
 246     LAYER_ON_PRESS = 1,
 247     LAYER_ON_RELEASE = 2,
 248     LAYER_DEFAULT =3,
 249     LAYER_TAP_TOGGLE = 0xF0,
 250     LAYER_CHANGE_DEFAULT = 0xFF
 251 };
 252 enum layer_vals_default {
 253     DEFAULT_ON_PRESS = 1,
 254     DEFAULT_ON_RELEASE = 2,
 255     DEFAULT_ON_BOTH = 3,
 256 };
 257
 258 /*
 259  * return to default layer
 260  */
 261 #define ACTION_LAYER_DEFAULT                    ACTION_LAYER_DEFAULT_R
 262 /* set default layer on press */
 263 #define ACTION_LAYER_DEFAULT_P                  ACTION(ACT_LAYER, DEFAULT_ON_PRESS<<8 | LAYER_DEFAULT)
 264 /* set default layer on release */
 265 #define ACTION_LAYER_DEFAULT_R                  ACTION(ACT_LAYER, DEFAULT_ON_RELEASE<<8 | LAYER_DEFAULT)
 266 /* change default layer and set layer */
 267
 268 /*
 269  * Set layer
 270  */
 271 /* set layer on press and set default on release */
 272 #define ACTION_LAYER_SET(layer)                 ACTION_LAYER_SET_MOMENTARY(layer)
 273 #define ACTION_LAYER_SET_MOMENTARY(layer)       ACTION(ACT_LAYER, (layer)<<8 | LAYER_MOMENTARY)
 274 /* set layer on press and none on release */
 275 #define ACTION_LAYER_SET_TOGGLE(layer)          ACTION_LAYER_SET_R(layer)
 276 /* set layer while hold and send key on tap */
 277 #define ACTION_LAYER_SET_TAP_KEY(layer, key)    ACTION(ACT_LAYER, (layer)<<8 | (key))
 278 /* set layer on press */
 279 #define ACTION_LAYER_SET_P(layer)               ACTION(ACT_LAYER, (layer)<<8 | LAYER_ON_PRESS)
 280 /* set layer on release */
 281 #define ACTION_LAYER_SET_R(layer)               ACTION(ACT_LAYER, (layer)<<8 | LAYER_ON_RELEASE)
 282 /* set layer on hold and toggle on several taps */
 283 #define ACTION_LAYER_SET_TAP_TOGGLE(layer)      ACTION(ACT_LAYER, (layer)<<8 | LAYER_TAP_TOGGLE)
 284 /* set default layer on both press and release */
 285 #define ACTION_LAYER_SET_DEFAULT(layer)         ACTION(ACT_LAYER, (layer)<<8 | LAYER_CHANGE_DEFAULT)
 286
 287 /*
 288  * Bit-op layer
 289  */
 290 /* bit-xor on both press and release */
 291 #define ACTION_LAYER_BIT(bits)                  ACTION_LAYER_BIT_MOMENTARY(bits)
 292 #define ACTION_LAYER_BIT_MOMENTARY(bits)        ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_MOMENTARY)
 293 /* bit-xor on press */
 294 #define ACTION_LAYER_BIT_TOGGLE(bits)           ACTION_LAYER_BIT_R(bits)
 295 /* bit-xor while hold and send key on tap */
 296 #define ACTION_LAYER_BIT_TAP_KEY(bits, key)     ACTION(ACT_LAYER_BIT, (bits)<<8 | (key))
 297 /* bit-xor on press */
 298 #define ACTION_LAYER_BIT_P(bits)                ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_ON_PRESS)
 299 /* bit-xor on release */
 300 #define ACTION_LAYER_BIT_R(bits)                ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_ON_RELEASE)
 301 /* bit-xor while hold and toggle on several taps */
 302 #define ACTION_LAYER_BIT_TAP_TOGGLE(bits)       ACTION(ACT_LAYER_BIT, (bits)<<8 | LAYER_TAP_TOGGLE)
 303 /* bit-xor default layer and set layer */
 304 #define ACTION_LAYER_BIT_DEFAULT(bits)          ACTION(ACT_LAYER, (bits)<<8 | LAYER_CHANGE_DEFAULT)
 305
 306
 307 /* HID Usage */
 308 enum usage_pages {
 309     PAGE_SYSTEM,
 310     PAGE_CONSUMER
 311 };
 312 #define ACTION_USAGE_SYSTEM(id)         ACTION(ACT_USAGE, PAGE_SYSTEM<<10 | (id))
 313 #define ACTION_USAGE_CONSUMER(id)       ACTION(ACT_USAGE, PAGE_CONSUMER<<10 | (id))
 314
 315 /* Mousekey */
 316 #define ACTION_MOUSEKEY(key)            ACTION(ACT_MOUSEKEY, key)
 317
 318 /* Macro */
 319 #define ACTION_MACRO(opt, id)           ACTION(ACT_FUNCTION, (opt)<<8 | (addr))
 320
 321 /* Command */
 322 #define ACTION_COMMAND(opt, id)         ACTION(ACT_COMMAND,  (opt)<<8 | (addr))
 323
 324 /* Function */
 325 enum function_opts {
 326     FUNC_TAP        = 0x8,      /* indciates function is tappable */
 327 };
 328 #define ACTION_FUNCTION(id, opt)        ACTION(ACT_FUNCTION, (opt)<<8 | id)
 329 #define ACTION_FUNCTION_TAP(id)         ACTION(ACT_FUNCTION, FUNC_TAP<<8 | id)
 330
 331 #endif  /* ACTION_H */