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 #include "action_macro.h"
  23
  24
  25 /* Struct to record event and tap count  */
  26 typedef union {
  27     struct {
  28         bool    interrupted :1;
  29         bool    reserved2   :1;
  30         bool    reserved1   :1;
  31         bool    reserved0   :1;
  32         uint8_t count       :4;
  33     };
  34 } tap_t;
  35
  36 typedef struct {
  37     keyevent_t  event;
  38     tap_t tap;
  39 } keyrecord_t;
  40
  41 /* Action struct.
  42  *
  43  * In avr-gcc bit field seems to be assigned from LSB(bit0) to MSB(bit15).
  44  * AVR looks like a little endian in avr-gcc.
  45  *
  46  * NOTE: not portable across compiler/endianness?
  47  * Byte order and bit order of 0x1234:
  48  * Big endian:     15 ...  8 7 ... 210
  49  *                |  0x12   |  0x34   |
  50  *                 0001 0010 0011 0100
  51  * Little endian:  012 ... 7  8 ... 15
  52  *                |  0x34   |  0x12   |
  53  *                 0010 1100 0100 1000
  54  */
  55 typedef union {
  56     uint16_t code;
  57     struct action_kind {
  58         uint16_t param  :12;
  59         uint8_t  id     :4;
  60     } kind;
  61     struct action_key {
  62         uint8_t  code   :8;
  63         uint8_t  mods   :4;
  64         uint8_t  kind   :4;
  65     } key;
  66     struct action_layer {
  67         uint8_t  code   :8;
  68         uint8_t  val    :4;
  69         uint8_t  kind   :4;
  70     } layer;
  71     struct action_usage {
  72         uint16_t code   :10;
  73         uint8_t  page   :2;
  74         uint8_t  kind   :4;
  75     } usage;
  76     struct action_command {
  77         uint8_t  id     :8;
  78         uint8_t  opt    :4;
  79         uint8_t  kind   :4;
  80     } command;
  81     struct action_function {
  82         uint8_t  id     :8;
  83         uint8_t  opt    :4;
  84         uint8_t  kind   :4;
  85     } func;
  86 } action_t;
  87
  88
  89
  90 /* Execute action per keyevent */
  91 void action_exec(keyevent_t event);
  92
  93 /* action for key */
  94 action_t action_for_key(uint8_t layer, key_t key);
  95
  96 /* macro */
  97 const prog_macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt);
  98
  99 /* user defined special function */
 100 void action_function(keyrecord_t *record, uint8_t id, uint8_t opt);
 101
 102 /*
 103  * Utilities for actions.
 104  */
 105 void register_code(uint8_t code);
 106 void unregister_code(uint8_t code);
 107 void add_mods(uint8_t mods);
 108 void del_mods(uint8_t mods);
 109 void set_mods(uint8_t mods);
 110 void clear_keyboard(void);
 111 void clear_keyboard_but_mods(void);
 112 bool sending_anykey(void);
 113 void layer_switch(uint8_t new_layer);
 114 bool is_tap_key(key_t key);
 115 bool waiting_buffer_has_anykey_pressed(void);
 116
 117
 118
 119 /*
 120  * Action codes
 121  * ============
 122  * 16bit code: action_kind(4bit) + action_parameter(12bit)
 123  *
 124  * Keyboard Keys(00XX)
 125  * -------------------
 126  * ACT_LMODS(0000):
 127  * 0000|0000|000000|00    No action
 128  * 0000|0000|000000|01    Transparent
 129  * 0000|0000| keycode     Key
 130  * 0000|mods|000000|00    Left mods
 131  * 0000|mods| keycode     Key & Left mods
 132  *
 133  * ACT_RMODS(0001):
 134  * 0001|0000|000000|00    No action(not used)
 135  * 0001|0000|000000|01    Transparent(not used)
 136  * 0001|0000| keycode     Key(no used)
 137  * 0001|mods|000000|00    Right mods
 138  * 0001|mods| keycode     Key & Right mods
 139  *
 140  * ACT_LMODS_TAP(0010):
 141  * 0010|mods|000000|00    Left mods OneShot
 142  * 0010|mods|000000|01    (reserved)
 143  * 0010|mods|000000|10    (reserved)
 144  * 0010|mods|000000|11    (reserved)
 145  * 0010|mods| keycode     Left mods + tap Key
 146  *
 147  * ACT_RMODS_TAP(0011):
 148  * 0011|mods|000000|00    Right mods OneShot
 149  * 0011|mods|000000|01    (reserved)
 150  * 0011|mods|000000|10    (reserved)
 151  * 0011|mods|000000|11    (reserved)
 152  * 0011|mods| keycode     Right mods + tap Key
 153  *
 154  *
 155  * Other keys(01XX)
 156  * --------------------
 157  * This action handles other usages than keyboard.
 158  * ACT_USAGE(0100):
 159  * 0100|00| usage(10)     System control(0x80) - General Desktop page(0x01)
 160  * 0100|01| usage(10)     Consumer control(0x01) - Consumer page(0x0C)
 161  * 0100|10| usage(10)     (reserved)
 162  * 0100|11| usage(10)     (reserved)
 163  *
 164  * ACT_MOUSEKEY(0110):
 165  * 0101|XXXX| keycode     Mouse key
 166  *
 167  *
 168  * Layer Actions(10XX)
 169  * -------------------
 170  * ACT_KEYMAP:
 171  * 1000|--xx|0000 0000   Clear keyamp and overlay
 172  * 1000|LLLL|0000 00xx   Reset default layer and clear keymap and overlay
 173  * 1000|LLLL| keycode    Invert with tap key
 174  * 1000|LLLL|1111 0000   Invert with tap toggle
 175  * 1000|LLLL|1111 00xx   Invert[^=  1<<L]
 176  * 1000|LLLL|1111 0100   On/Off
 177  * 1000|LLLL|1111 01xx   On[|= 1<<L]
 178  * 1000|LLLL|1111 1000   Off/On
 179  * 1000|LLLL|1111 10xx   Off[&= ~(1<<L)]
 180  * 1000|LLLL|1111 1100   Set/Clear
 181  * 1000|LLLL|1111 11xx   Set[= 1<<L]
 182  * default layer: 0-15(4bit)
 183  * xx: On {00:for special use, 01:press, 10:release, 11:both}
 184  *
 185  * ACT_OVERLAY:
 186  * 1011|0000|0000 0000   Clear overlay
 187  * 1011|LLLL|0000 00ss   Invert 4-bit chunk [^= L<<(4*ss)]
 188  * 1011|LLLL| keycode    Invert with tap key
 189  * 1011|LLLL|1111 0000   Invert with tap toggle
 190  * 1011|LLLL|1111 00xx   Invert[^= 1<<L]
 191  * 1011|LLLL|1111 0100   On/Off(momentary)
 192  * 1011|LLLL|1111 01xx   On[|= 1<<L]
 193  * 1011|LLLL|1111 1000   Off/On
 194  * 1011|LLLL|1111 10xx   Off[&= ~(1<<L)]
 195  * 1011|LLLL|1111 1100   Set/Clear
 196  * 1011|LLLL|1111 11xx   Set[= 1<<L]
 197  * overlays: 16-layer on/off status(16bit)
 198  * xx: On {00:for special use, 01:press, 10:release, 11:both}
 199  *
 200  *
 201  * Extensions(11XX)
 202  * ----------------
 203  * ACT_MACRO(1100):
 204  * 1100|opt | id(8)      Macro play?
 205  * 1100|1111| id(8)      Macro record?
 206  *
 207  * ACT_COMMAND(1110):
 208  * 1110|opt | id(8)      Built-in Command exec
 209  *
 210  * ACT_FUNCTION(1111):
 211  * 1111| address(12)     Function?
 212  * 1111|opt | id(8)      Function?
 213  *
 214  */
 215 enum action_kind_id {
 216     ACT_LMODS           = 0b0000,
 217     ACT_RMODS           = 0b0001,
 218     ACT_LMODS_TAP       = 0b0010,
 219     ACT_RMODS_TAP       = 0b0011,
 220
 221     ACT_USAGE           = 0b0100,
 222     ACT_MOUSEKEY        = 0b0101,
 223
 224     ACT_KEYMAP          = 0b1000,
 225     ACT_OVERLAY         = 0b1001,
 226
 227     ACT_MACRO           = 0b1100,
 228     ACT_COMMAND         = 0b1110,
 229     ACT_FUNCTION        = 0b1111
 230 };
 231
 232
 233 /* action utility */
 234 #define ACTION_NO                       0
 235 #define ACTION_TRANSPARENT              1
 236 #define ACTION(kind, param)             ((kind)<<12 | (param))
 237 #define MODS4(mods)                     (((mods)>>4 | (mods)) & 0x0F)
 238
 239 /*
 240  * Key
 241  */
 242 #define ACTION_KEY(key)                 ACTION(ACT_LMODS,    key)
 243 /* Mods & key */
 244 #define ACTION_LMODS(mods)              ACTION(ACT_LMODS,    MODS4(mods)<<8 | 0x00)
 245 #define ACTION_LMODS_KEY(mods, key)     ACTION(ACT_LMODS,    MODS4(mods)<<8 | (key))
 246 #define ACTION_RMODS(mods)              ACTION(ACT_RMODS,    MODS4(mods)<<8 | 0x00)
 247 #define ACTION_RMODS_KEY(mods, key)     ACTION(ACT_RMODS,    MODS4(mods)<<8 | (key))
 248 #define ACTION_LMOD(mod)                ACTION(ACT_LMODS,    MODS4(MOD_BIT(mod))<<8 | 0x00)
 249 #define ACTION_LMOD_KEY(mod, key)       ACTION(ACT_LMODS,    MODS4(MOD_BIT(mod))<<8 | (key))
 250 #define ACTION_RMOD(mod)                ACTION(ACT_RMODS,    MODS4(MOD_BIT(mod))<<8 | 0x00)
 251 #define ACTION_RMOD_KEY(mod, key)       ACTION(ACT_RMODS,    MODS4(MOD_BIT(mod))<<8 | (key))
 252 /* Tap key */
 253 enum mods_codes {
 254     MODS_ONESHOT           = 0x00,
 255 };
 256 #define ACTION_LMODS_TAP_KEY(mods, key) ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | (key))
 257 #define ACTION_LMODS_ONESHOT(mods)      ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
 258 #define ACTION_RMODS_TAP_KEY(mods, key) ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | (key))
 259 #define ACTION_RMODS_ONESHOT(mods)      ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
 260 #define ACTION_LMOD_TAP_KEY(mod, key)   ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
 261 #define ACTION_LMOD_ONESHOT(mod)        ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
 262 #define ACTION_RMOD_TAP_KEY(mod, key)   ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
 263 #define ACTION_RMOD_ONESHOT(mod)        ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
 264
 265 /* HID Usage */
 266 enum usage_pages {
 267     PAGE_SYSTEM,
 268     PAGE_CONSUMER
 269 };
 270 #define ACTION_USAGE_SYSTEM(id)         ACTION(ACT_USAGE, PAGE_SYSTEM<<10 | (id))
 271 #define ACTION_USAGE_CONSUMER(id)       ACTION(ACT_USAGE, PAGE_CONSUMER<<10 | (id))
 272
 273 /* Mousekey */
 274 #define ACTION_MOUSEKEY(key)            ACTION(ACT_MOUSEKEY, key)
 275
 276
 277
 278 /* Layer Actions:
 279  *      Invert  layer ^= (1<<layer)
 280  *      On      layer |= (1<<layer)
 281  *      Off     layer &= ~(1<<layer)
 282  *      Set     layer = (1<<layer)
 283  *      Clear   layer = 0
 284  */
 285 enum layer_params {
 286     ON_PRESS    = 1,
 287     ON_RELEASE  = 2,
 288     ON_BOTH     = 3,
 289
 290     OP_RESET  = 0x00,
 291     OP_INV4  = 0x00,
 292     OP_INV   = 0xF0,
 293     OP_ON    = 0xF4,
 294     OP_OFF   = 0xF8,
 295     OP_SET   = 0xFC,
 296 };
 297
 298 /*
 299  * Default Layer
 300  */
 301 #define ACTION_DEFAULT_LAYER                     ACTION(ACT_KEYMAP, ON_RELEASE<<8 | OP_RESET | 0)
 302 #define ACTION_DEFAULT_LAYER_SET(layer)          ACTION_DEFAULT_LAYER_TO(layer, ON_RELEASE)
 303 #define ACTION_DEFAULT_LAYER_TO(layer, on)       ACTION(ACT_KEYMAP, (layer)<<8 | OP_RESET | (on))
 304 /*
 305  * Keymap Layer
 306  */
 307 #define ACTION_KEYMAP_MOMENTARY(layer)           ACTION_KEYMAP_ON_OFF(layer)
 308 #define ACTION_KEYMAP_TOGGLE(layer)              ACTION_KEYMAP_INV(layer, ON_RELEASE)
 309 /* Keymap Invert */
 310 #define ACTION_KEYMAP_INV(layer, on)             ACTION(ACT_KEYMAP, (layer)<<8 | OP_INV | (on))
 311 #define ACTION_KEYMAP_TAP_TOGGLE(layer)          ACTION(ACT_KEYMAP, (layer)<<8 | OP_INV | 0)
 312 /* Keymap On */
 313 #define ACTION_KEYMAP_ON(layer, on)              ACTION(ACT_KEYMAP, (layer)<<8 | OP_ON  | (on))
 314 #define ACTION_KEYMAP_ON_OFF(layer)              ACTION(ACT_KEYMAP, (layer)<<8 | OP_ON  | 0)
 315 /* Keymap Off */
 316 #define ACTION_KEYMAP_OFF(layer, on)             ACTION(ACT_KEYMAP, (layer)<<8 | OP_OFF | (on))
 317 #define ACTION_KEYMAP_OFF_ON(layer)              ACTION(ACT_KEYMAP, (layer)<<8 | OP_OFF | 0)
 318 /* Keymap Set */
 319 #define ACTION_KEYMAP_SET(layer, on)             ACTION(ACT_KEYMAP, (layer)<<8 | OP_SET | (on))
 320 #define ACTION_KEYMAP_SET_CLEAR(layer)           ACTION(ACT_KEYMAP, (layer)<<8 | OP_SET | 0)
 321 /* Keymap Invert with tap key */
 322 #define ACTION_KEYMAP_TAP_KEY(layer, key)        ACTION(ACT_KEYMAP, (layer)<<8 | (key))
 323
 324 /*
 325  * Overlay Layer
 326  */
 327 #define ACTION_OVERLAY_MOMENTARY(layer)           ACTION_OVERLAY_ON_OFF(layer)
 328 #define ACTION_OVERLAY_TOGGLE(layer)              ACTION_OVERLAY_INV(layer, ON_RELEASE)
 329 /* Overlay Clear */
 330 #define ACTION_OVERLAY_CLEAR(on)                  ACTION(ACT_OVERLAY, 0<<8 | OP_INV4 | (on))
 331 /* Overlay Invert 4-bit chunk */
 332 #define ACTION_OVERLAY_INV4(bits, shift)          ACTION(ACT_OVERLAY, (bits)<<8 | OP_INV4 | shift)
 333 /* Overlay Invert */
 334 #define ACTION_OVERLAY_INV(layer, on)             ACTION(ACT_OVERLAY, (layer)<<8 | OP_INV | (on))
 335 #define ACTION_OVERLAY_TAP_TOGGLE(layer)          ACTION(ACT_OVERLAY, (layer)<<8 | OP_INV | 0)
 336 /* Overlay On */
 337 #define ACTION_OVERLAY_ON(layer, on)              ACTION(ACT_OVERLAY, (layer)<<8 | OP_ON  | (on))
 338 #define ACTION_OVERLAY_ON_OFF(layer)              ACTION(ACT_OVERLAY, (layer)<<8 | OP_ON  | 0)
 339 /* Overlay Off */
 340 #define ACTION_OVERLAY_OFF(layer, on)             ACTION(ACT_OVERLAY, (layer)<<8 | OP_OFF | (on))
 341 #define ACTION_OVERLAY_OFF_ON(layer)              ACTION(ACT_OVERLAY, (layer)<<8 | OP_OFF | 0)
 342 /* Overlay Set */
 343 #define ACTION_OVERLAY_SET(layer, on)             ACTION(ACT_OVERLAY, (layer)<<8 | OP_SET | (on))
 344 #define ACTION_OVERLAY_SET_CLEAR(layer)           ACTION(ACT_OVERLAY, (layer)<<8 | OP_SET | 0)
 345 /* Overlay Invert with tap key */
 346 #define ACTION_OVERLAY_TAP_KEY(layer, key)        ACTION(ACT_OVERLAY, (layer)<<8 | (key))
 347
 348
 349 /*
 350  * Extensions
 351  */
 352 /* Macro */
 353 #define ACTION_MACRO(id)                ACTION(ACT_MACRO, (id))
 354 #define ACTION_MACRO_TAP(id)            ACTION(ACT_MACRO, FUNC_TAP<<8 | (id))
 355 #define ACTION_MACRO_OPT(id, opt)       ACTION(ACT_MACRO, (opt)<<8 | (id))
 356
 357 /* Command */
 358 #define ACTION_COMMAND(id, opt)         ACTION(ACT_COMMAND,  (opt)<<8 | (addr))
 359
 360 /* Function */
 361 enum function_opts {
 362     FUNC_TAP        = 0x8,      /* indciates function is tappable */
 363 };
 364 #define ACTION_FUNCTION(id)             ACTION(ACT_FUNCTION, (id))
 365 #define ACTION_FUNCTION_TAP(id)         ACTION(ACT_FUNCTION, FUNC_TAP<<8 | (id))
 366 #define ACTION_FUNCTION_OPT(id, opt)    ACTION(ACT_FUNCTION, (opt)<<8 | (id))
 367
 368 #endif  /* ACTION_H */