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 <stdint.h>
  21 #include <stdbool.h>
  22 #include "keyboard.h"
  23 #include "keycode.h"
  24 #include "action_macro.h"
  25
  26
  27 typedef struct {
  28     keyevent_t  event;
  29 #ifndef NO_ACTION_TAPPING
  30     /* tapping count and state */
  31     struct {
  32         bool    interrupted :1;
  33         bool    reserved2   :1;
  34         bool    reserved1   :1;
  35         bool    reserved0   :1;
  36         uint8_t count       :4;
  37     } tap;
  38 #endif
  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_bitop {
  67         uint8_t  bits   :4;
  68         uint8_t  xbit   :1;
  69         uint8_t  part   :3;
  70         uint8_t  on     :2;
  71         uint8_t  op     :2;
  72         uint8_t  kind   :4;
  73     } layer_bitop;
  74     struct action_layer_tap {
  75         uint8_t  code   :8;
  76         uint8_t  val    :5;
  77         uint8_t  kind   :3;
  78     } layer_tap;
  79     struct action_usage {
  80         uint16_t code   :10;
  81         uint8_t  page   :2;
  82         uint8_t  kind   :4;
  83     } usage;
  84     struct action_command {
  85         uint8_t  id     :8;
  86         uint8_t  opt    :4;
  87         uint8_t  kind   :4;
  88     } command;
  89     struct action_function {
  90         uint8_t  id     :8;
  91         uint8_t  opt    :4;
  92         uint8_t  kind   :4;
  93     } func;
  94 } action_t;
  95
  96
  97
  98 /* Execute action per keyevent */
  99 void action_exec(keyevent_t event);
 100
 101 /* action for key */
 102 action_t action_for_key(uint8_t layer, key_t key);
 103
 104 /* macro */
 105 const prog_macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt);
 106
 107 /* user defined special function */
 108 void action_function(keyrecord_t *record, uint8_t id, uint8_t opt);
 109
 110 /* Utilities for actions.  */
 111 void process_action(keyrecord_t *record);
 112 void register_code(uint8_t code);
 113 void unregister_code(uint8_t code);
 114 void add_mods(uint8_t mods);
 115 void del_mods(uint8_t mods);
 116 void set_mods(uint8_t mods);
 117 void clear_keyboard(void);
 118 void clear_keyboard_but_mods(void);
 119 bool sending_anykey(void);
 120 void layer_switch(uint8_t new_layer);
 121 bool is_tap_key(key_t key);
 122
 123 /* debug */
 124 void debug_event(keyevent_t event);
 125 void debug_record(keyrecord_t record);
 126 void debug_action(action_t action);
 127
 128
 129
 130 /*
 131  * Action codes
 132  * ============
 133  * 16bit code: action_kind(4bit) + action_parameter(12bit)
 134  *
 135  * Keyboard Keys(00XX)
 136  * -------------------
 137  * ACT_LMODS(0000):
 138  * 0000|0000|000000|00    No action
 139  * 0000|0000|000000|01    Transparent
 140  * 0000|0000| keycode     Key
 141  * 0000|mods|000000|00    Left mods
 142  * 0000|mods| keycode     Key & Left mods
 143  *
 144  * ACT_RMODS(0001):
 145  * 0001|0000|000000|00    No action(not used)
 146  * 0001|0000|000000|01    Transparent(not used)
 147  * 0001|0000| keycode     Key(no used)
 148  * 0001|mods|000000|00    Right mods
 149  * 0001|mods| keycode     Key & Right mods
 150  *
 151  * ACT_LMODS_TAP(0010):
 152  * 0010|mods|000000|00    Left mods OneShot
 153  * 0010|mods|000000|01    (reserved)
 154  * 0010|mods|000000|10    (reserved)
 155  * 0010|mods|000000|11    (reserved)
 156  * 0010|mods| keycode     Left mods + tap Key
 157  *
 158  * ACT_RMODS_TAP(0011):
 159  * 0011|mods|000000|00    Right mods OneShot
 160  * 0011|mods|000000|01    (reserved)
 161  * 0011|mods|000000|10    (reserved)
 162  * 0011|mods|000000|11    (reserved)
 163  * 0011|mods| keycode     Right mods + tap Key
 164  *
 165  *
 166  * Other keys(01XX)
 167  * --------------------
 168  * This action handles other usages than keyboard.
 169  * ACT_USAGE(0100):
 170  * 0100|00| usage(10)     System control(0x80) - General Desktop page(0x01)
 171  * 0100|01| usage(10)     Consumer control(0x01) - Consumer page(0x0C)
 172  * 0100|10| usage(10)     (reserved)
 173  * 0100|11| usage(10)     (reserved)
 174  *
 175  * ACT_MOUSEKEY(0110):
 176  * 0101|XXXX| keycode     Mouse key
 177  *
 178  *
 179  * Layer Actions(10XX)
 180  * -------------------
 181  * ACT_LAYER:
 182  * 1000|oo00|pppx BBBB   Default Layer Bitwise operation
 183  *   oo:    operation(00:AND, 01:OR, 10:XOR, 11:SET)
 184  *   ppp:   4-bit chunk part(0-7)
 185  *   xBBBB: bits and extra bit
 186  * 1000|ooee|pppx BBBB   Layer Bitwise Operation
 187  *   oo:    operation(00:AND, 01:OR, 10:XOR, 11:SET)
 188  *   ppp:   4-bit chunk part(0-7)
 189  *   xBBBB: bits and extra bit
 190  *   ee:    on event(00:default layer, 01:press, 10:release, 11:both)
 191  *
 192  * ACT_LAYER_TAP:
 193  * 101x|LLLL| keycode    Invert with tap key
 194  * 101x|LLLL|1110 xxxx   Reserved(0xE0-EF)
 195  * 101x|LLLL|1111 0000   Invert with tap toggle(0xF0)
 196  * 101x|LLLL|1111 0001   On  Off
 197  * 101x|LLLL|1111 0010   Off On
 198  * 101x|LLLL|1111 0011   Set Clear
 199  * 101x|LLLL|1111 xxxx   Reserved(0xF4-FF)
 200  *   xLLLL: layer(0-31)
 201  *
 202  *
 203  *
 204  *
 205  *
 206  * Extensions(11XX)
 207  * ----------------
 208  * ACT_MACRO(1100):
 209  * 1100|opt | id(8)      Macro play?
 210  * 1100|1111| id(8)      Macro record?
 211  *
 212  * ACT_COMMAND(1110):
 213  * 1110|opt | id(8)      Built-in Command exec
 214  *
 215  * ACT_FUNCTION(1111):
 216  * 1111| address(12)     Function?
 217  * 1111|opt | id(8)      Function?
 218  *
 219  */
 220 enum action_kind_id {
 221     ACT_MODS            = 0b0000,
 222     ACT_LMODS           = 0b0000,
 223     ACT_RMODS           = 0b0001,
 224     ACT_MODS_TAP        = 0b0010,
 225     ACT_LMODS_TAP       = 0b0010,
 226     ACT_RMODS_TAP       = 0b0011,
 227
 228     ACT_USAGE           = 0b0100,
 229     ACT_MOUSEKEY        = 0b0101,
 230
 231     ACT_LAYER           = 0b1000,
 232     ACT_LAYER_TAP       = 0b1010,
 233     ACT_LAYER_TAP1      = 0b1011,
 234
 235     ACT_MACRO           = 0b1100,
 236     ACT_COMMAND         = 0b1110,
 237     ACT_FUNCTION        = 0b1111
 238 };
 239
 240
 241 /* action utility */
 242 #define ACTION_NO                       0
 243 #define ACTION_TRANSPARENT              1
 244 #define ACTION(kind, param)             ((kind)<<12 | (param))
 245 #define MODS4(mods)                     (((mods)>>4 | (mods)) & 0x0F)
 246
 247 /*
 248  * Key
 249  */
 250 #define ACTION_KEY(key)                 ACTION(ACT_LMODS,    key)
 251 /* Mods & key */
 252 #define ACTION_LMODS(mods)              ACTION(ACT_LMODS,    MODS4(mods)<<8 | 0x00)
 253 #define ACTION_LMODS_KEY(mods, key)     ACTION(ACT_LMODS,    MODS4(mods)<<8 | (key))
 254 #define ACTION_RMODS(mods)              ACTION(ACT_RMODS,    MODS4(mods)<<8 | 0x00)
 255 #define ACTION_RMODS_KEY(mods, key)     ACTION(ACT_RMODS,    MODS4(mods)<<8 | (key))
 256 #define ACTION_LMOD(mod)                ACTION(ACT_LMODS,    MODS4(MOD_BIT(mod))<<8 | 0x00)
 257 #define ACTION_LMOD_KEY(mod, key)       ACTION(ACT_LMODS,    MODS4(MOD_BIT(mod))<<8 | (key))
 258 #define ACTION_RMOD(mod)                ACTION(ACT_RMODS,    MODS4(MOD_BIT(mod))<<8 | 0x00)
 259 #define ACTION_RMOD_KEY(mod, key)       ACTION(ACT_RMODS,    MODS4(MOD_BIT(mod))<<8 | (key))
 260 /* Tap key */
 261 enum mods_codes {
 262     MODS_ONESHOT           = 0x00,
 263 };
 264 #define ACTION_LMODS_TAP_KEY(mods, key) ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | (key))
 265 #define ACTION_LMODS_ONESHOT(mods)      ACTION(ACT_LMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
 266 #define ACTION_RMODS_TAP_KEY(mods, key) ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | (key))
 267 #define ACTION_RMODS_ONESHOT(mods)      ACTION(ACT_RMODS_TAP, MODS4(mods)<<8 | MODS_ONESHOT)
 268 #define ACTION_LMOD_TAP_KEY(mod, key)   ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
 269 #define ACTION_LMOD_ONESHOT(mod)        ACTION(ACT_LMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
 270 #define ACTION_RMOD_TAP_KEY(mod, key)   ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | (key))
 271 #define ACTION_RMOD_ONESHOT(mod)        ACTION(ACT_RMODS_TAP, MODS4(MOD_BIT(mod))<<8 | MODS_ONESHOT)
 272
 273 /* HID Usage */
 274 enum usage_pages {
 275     PAGE_SYSTEM,
 276     PAGE_CONSUMER
 277 };
 278 #define ACTION_USAGE_SYSTEM(id)         ACTION(ACT_USAGE, PAGE_SYSTEM<<10 | (id))
 279 #define ACTION_USAGE_CONSUMER(id)       ACTION(ACT_USAGE, PAGE_CONSUMER<<10 | (id))
 280
 281 /* Mousekey */
 282 #define ACTION_MOUSEKEY(key)            ACTION(ACT_MOUSEKEY, key)
 283
 284
 285
 286 /* Layer Actions */
 287 enum layer_param_on {
 288     ON_PRESS    = 1,
 289     ON_RELEASE  = 2,
 290     ON_BOTH     = 3,
 291 };
 292
 293 enum layer_param_bit_op {
 294     OP_BIT_AND = 0,
 295     OP_BIT_OR,
 296     OP_BIT_XOR,
 297     OP_BIT_SET,
 298 };
 299
 300 enum layer_pram_tap_op {
 301     OP_TAP_TOGGLE = 0xF0,
 302     OP_ON_OFF,
 303     OP_OFF_ON,
 304     OP_SET_CLEAR,
 305 };
 306
 307 /* Layer Bitwise Operation   1000|ooee|pppx BBBB */
 308 #define ACTION_LAYER_BITOP(op, part, bits, on)      (ACT_LAYER<<12 | (op)<<10 | (on)<<8 | (part)<<5 | ((bits)&0x1f))
 309 /* Layer with Tapping        101x|LLLL| keycode  */
 310 #define ACTION_LAYER_TAP(layer, key)                (ACT_LAYER_TAP<<12 | (layer)<<8 | (key))
 311
 312 /* Default Layer Operation */
 313 #define ACTION_DEFAULT_LAYER_SET(layer)             ACTION_DEFAULT_LAYER_BIT_SET((layer)/4, 1<<((layer)%4))
 314 /* Layer Operation */
 315 #define ACTION_LAYER_CLEAR(on)                      ACTION_LAYER_AND(0x1f, (on))
 316 #define ACTION_LAYER_MOMENTARY(layer)               ACTION_LAYER_ON_OFF(layer)
 317 #define ACTION_LAYER_TOGGLE(layer)                  ACTION_LAYER_INVERT(layer, ON_RELEASE)
 318 #define ACTION_LAYER_INVERT(layer, on)              ACTION_LAYER_BIT_XOR((layer)/4,   1<<((layer)%4),  (on))
 319 #define ACTION_LAYER_ON(layer, on)                  ACTION_LAYER_BIT_OR( (layer)/4,   1<<((layer)%4),  (on))
 320 #define ACTION_LAYER_OFF(layer, on)                 ACTION_LAYER_BIT_AND((layer)/4, ~(1<<((layer)%4)), (on))
 321 #define ACTION_LAYER_SET(layer, on)                 ACTION_LAYER_BIT_SET((layer)/4,   1<<((layer)%4),  (on))
 322 #define ACTION_LAYER_ON_OFF(layer)                  ACTION_LAYER_TAP((layer), OP_ON_OFF)
 323 #define ACTION_LAYER_OFF_ON(layer)                  ACTION_LAYER_TAP((layer), OP_OFF_ON)
 324 #define ACTION_LAYER_SET_CLEAR(layer)               ACTION_LAYER_TAP((layer), OP_SET_CLEAR)
 325 /* Bitwise Operation */
 326 #define ACTION_LAYER_BIT_AND(part, bits, on)        ACTION_LAYER_BITOP(OP_BIT_AND, (part), (bits), (on))
 327 #define ACTION_LAYER_BIT_OR( part, bits, on)        ACTION_LAYER_BITOP(OP_BIT_OR,  (part), (bits), (on))
 328 #define ACTION_LAYER_BIT_XOR(part, bits, on)        ACTION_LAYER_BITOP(OP_BIT_XOR, (part), (bits), (on))
 329 #define ACTION_LAYER_BIT_SET(part, bits, on)        ACTION_LAYER_BITOP(OP_BIT_SET, (part), (bits), (on))
 330 #define ACTION_DEFAULT_LAYER_BIT_AND(part, bits)    ACTION_LAYER_BITOP(OP_BIT_AND, (part), (bits), 0)
 331 #define ACTION_DEFAULT_LAYER_BIT_OR( part, bits)    ACTION_LAYER_BITOP(OP_BIT_OR,  (part), (bits), 0)
 332 #define ACTION_DEFAULT_LAYER_BIT_XOR(part, bits)    ACTION_LAYER_BITOP(OP_BIT_XOR, (part), (bits), 0)
 333 #define ACTION_DEFAULT_LAYER_BIT_SET(part, bits)    ACTION_LAYER_BITOP(OP_BIT_SET, (part), (bits), 0)
 334 /* with Tapping */
 335 #define ACTION_LAYER_TAP_KEY(layer, key)            ACTION_LAYER_TAP((layer), (key))
 336 #define ACTION_LAYER_TAP_TOGGLE(layer)              ACTION_LAYER_TAP((layer), OP_TAP_TOGGLE)
 337
 338
 339 /*
 340  * Extensions
 341  */
 342 /* Macro */
 343 #define ACTION_MACRO(id)                ACTION(ACT_MACRO, (id))
 344 #define ACTION_MACRO_TAP(id)            ACTION(ACT_MACRO, FUNC_TAP<<8 | (id))
 345 #define ACTION_MACRO_OPT(id, opt)       ACTION(ACT_MACRO, (opt)<<8 | (id))
 346
 347 /* Command */
 348 #define ACTION_COMMAND(id, opt)         ACTION(ACT_COMMAND,  (opt)<<8 | (addr))
 349
 350 /* Function */
 351 enum function_opts {
 352     FUNC_TAP        = 0x8,      /* indciates function is tappable */
 353 };
 354 #define ACTION_FUNCTION(id)             ACTION(ACT_FUNCTION, (id))
 355 #define ACTION_FUNCTION_TAP(id)         ACTION(ACT_FUNCTION, FUNC_TAP<<8 | (id))
 356 #define ACTION_FUNCTION_OPT(id, opt)    ACTION(ACT_FUNCTION, (opt)<<8 | (id))
 357
 358 #endif  /* ACTION_H */