summaryrefslogtreecommitdiffstats
path: root/quantum/quantum.c
blob: db99e80fa02d28c9746873b0b4da32aee86a09a9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
/* Copyright 2016-2017 Jack Humbert
 *
 * 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/>.
 */

#include <ctype.h>
#include "quantum.h"

#ifdef BLUETOOTH_ENABLE
#    include "outputselect.h"
#endif

#ifdef BACKLIGHT_ENABLE
#    include "backlight.h"
#endif

#ifdef API_ENABLE
#    include "api.h"
#endif

#ifdef MIDI_ENABLE
#    include "process_midi.h"
#endif

#ifdef VELOCIKEY_ENABLE
#    include "velocikey.h"
#endif

#ifdef HAPTIC_ENABLE
#    include "haptic.h"
#endif

#ifdef AUDIO_ENABLE
#    ifndef GOODBYE_SONG
#        define GOODBYE_SONG SONG(GOODBYE_SOUND)
#    endif
float goodbye_song[][2] = GOODBYE_SONG;
#    ifdef DEFAULT_LAYER_SONGS
float default_layer_songs[][16][2] = DEFAULT_LAYER_SONGS;
#    endif
#    ifdef SENDSTRING_BELL
float bell_song[][2] = SONG(TERMINAL_SOUND);
#    endif
#endif

#ifdef AUTO_SHIFT_ENABLE
#    include "process_auto_shift.h"
#endif

static void do_code16(uint16_t code, void (*f)(uint8_t)) {
    switch (code) {
        case QK_MODS ... QK_MODS_MAX:
            break;
        default:
            return;
    }

    uint8_t mods_to_send = 0;

    if (code & QK_RMODS_MIN) {  // Right mod flag is set
        if (code & QK_LCTL) mods_to_send |= MOD_BIT(KC_RCTL);
        if (code & QK_LSFT) mods_to_send |= MOD_BIT(KC_RSFT);
        if (code & QK_LALT) mods_to_send |= MOD_BIT(KC_RALT);
        if (code & QK_LGUI) mods_to_send |= MOD_BIT(KC_RGUI);
    } else {
        if (code & QK_LCTL) mods_to_send |= MOD_BIT(KC_LCTL);
        if (code & QK_LSFT) mods_to_send |= MOD_BIT(KC_LSFT);
        if (code & QK_LALT) mods_to_send |= MOD_BIT(KC_LALT);
        if (code & QK_LGUI) mods_to_send |= MOD_BIT(KC_LGUI);
    }

    f(mods_to_send);
}

void register_code16(uint16_t code) {
    if (IS_MOD(code) || code == KC_NO) {
        do_code16(code, register_mods);
    } else {
        do_code16(code, register_weak_mods);
    }
    register_code(code);
}

void unregister_code16(uint16_t code) {
    unregister_code(code);
    if (IS_MOD(code) || code == KC_NO) {
        do_code16(code, unregister_mods);
    } else {
        do_code16(code, unregister_weak_mods);
    }
}

void tap_code16(uint16_t code) {
    register_code16(code);
#if TAP_CODE_DELAY > 0
    wait_ms(TAP_CODE_DELAY);
#endif
    unregister_code16(code);
}

__attribute__((weak)) bool process_action_kb(keyrecord_t *record) { return true; }

__attribute__((weak)) bool process_record_kb(uint16_t keycode, keyrecord_t *record) { return process_record_user(keycode, record); }

__attribute__((weak)) bool process_record_user(uint16_t keycode, keyrecord_t *record) { return true; }

__attribute__((weak)) void post_process_record_kb(uint16_t keycode, keyrecord_t *record) { post_process_record_user(keycode, record); }

__attribute__((weak)) void post_process_record_user(uint16_t keycode, keyrecord_t *record) {}

void reset_keyboard(void) {
    clear_keyboard();
#if defined(MIDI_ENABLE) && defined(MIDI_BASIC)
    process_midi_all_notes_off();
#endif
#ifdef AUDIO_ENABLE
#    ifndef NO_MUSIC_MODE
    music_all_notes_off();
#    endif
    uint16_t timer_start = timer_read();
    PLAY_SONG(goodbye_song);
    shutdown_user();
    while (timer_elapsed(timer_start) < 250) wait_ms(1);
    stop_all_notes();
#else
    shutdown_user();
    wait_ms(250);
#endif
#ifdef HAPTIC_ENABLE
    haptic_shutdown();
#endif
    bootloader_jump();
}

/* Convert record into usable keycode via the contained event. */
uint16_t get_record_keycode(keyrecord_t *record, bool update_layer_cache) { return get_event_keycode(record->event, update_layer_cache); }

/* Convert event into usable keycode. Checks the layer cache to ensure that it
 * retains the correct keycode after a layer change, if the key is still pressed.
 * "update_layer_cache" is to ensure that it only updates the layer cache when
 * appropriate, otherwise, it will update it and cause layer tap (and other keys)
 * from triggering properly.
 */
uint16_t get_event_keycode(keyevent_t event, bool update_layer_cache) {
#if !defined(NO_ACTION_LAYER) && !defined(STRICT_LAYER_RELEASE)
    /* TODO: Use store_or_get_action() or a similar function. */
    if (!disable_action_cache) {
        uint8_t layer;

        if (event.pressed && update_layer_cache) {
            layer = layer_switch_get_layer(event.key);
            update_source_layers_cache(event.key, layer);
        } else {
            layer = read_source_layers_cache(event.key);
        }
        return keymap_key_to_keycode(layer, event.key);
    } else
#endif
        return keymap_key_to_keycode(layer_switch_get_layer(event.key), event.key);
}

/* Get keycode, and then call keyboard function */
void post_process_record_quantum(keyrecord_t *record) {
    uint16_t keycode = get_record_keycode(record, false);
    post_process_record_kb(keycode, record);
}

/* Core keycode function, hands off handling to other functions,
    then processes internal quantum keycodes, and then processes
    ACTIONs.                                                      */
bool process_record_quantum(keyrecord_t *record) {
    uint16_t keycode = get_record_keycode(record, true);

    // This is how you use actions here
    // if (keycode == KC_LEAD) {
    //   action_t action;
    //   action.code = ACTION_DEFAULT_LAYER_SET(0);
    //   process_action(record, action);
    //   return false;
    // }

#ifdef VELOCIKEY_ENABLE
    if (velocikey_enabled() && record->event.pressed) {
        velocikey_accelerate();
    }
#endif

#ifdef WPM_ENABLE
    if (record->event.pressed) {
        update_wpm(keycode);
    }
#endif

#ifdef TAP_DANCE_ENABLE
    preprocess_tap_dance(keycode, record);
#endif

    if (!(
#if defined(KEY_LOCK_ENABLE)
            // Must run first to be able to mask key_up events.
            process_key_lock(&keycode, record) &&
#endif
#if defined(DYNAMIC_MACRO_ENABLE) && !defined(DYNAMIC_MACRO_USER_CALL)
            // Must run asap to ensure all keypresses are recorded.
            process_dynamic_macro(keycode, record) &&
#endif
#if defined(AUDIO_ENABLE) && defined(AUDIO_CLICKY)
            process_clicky(keycode, record) &&
#endif  // AUDIO_CLICKY
#ifdef HAPTIC_ENABLE
            process_haptic(keycode, record) &&
#endif  // HAPTIC_ENABLE
#if defined(VIA_ENABLE)
            process_record_via(keycode, record) &&
#endif
            process_record_kb(keycode, record) &&
#if defined(SEQUENCER_ENABLE)
            process_sequencer(keycode, record) &&
#endif
#if defined(MIDI_ENABLE) && defined(MIDI_ADVANCED)
            process_midi(keycode, record) &&
#endif
#ifdef AUDIO_ENABLE
            process_audio(keycode, record) &&
#endif
#ifdef BACKLIGHT_ENABLE
            process_backlight(keycode, record) &&
#endif
#ifdef STENO_ENABLE
            process_steno(keycode, record) &&
#endif
#if (defined(AUDIO_ENABLE) || (defined(MIDI_ENABLE) && defined(MIDI_BASIC))) && !defined(NO_MUSIC_MODE)
            process_music(keycode, record) &&
#endif
#ifdef TAP_DANCE_ENABLE
            process_tap_dance(keycode, record) &&
#endif
#if defined(UNICODE_ENABLE) || defined(UNICODEMAP_ENABLE) || defined(UCIS_ENABLE)
            process_unicode_common(keycode, record) &&
#endif
#ifdef LEADER_ENABLE
            process_leader(keycode, record) &&
#endif
#ifdef COMBO_ENABLE
            process_combo(keycode, record) &&
#endif
#ifdef PRINTING_ENABLE
            process_printer(keycode, record) &&
#endif
#ifdef AUTO_SHIFT_ENABLE
            process_auto_shift(keycode, record) &&
#endif
#ifdef TERMINAL_ENABLE
            process_terminal(keycode, record) &&
#endif
#ifdef SPACE_CADET_ENABLE
            process_space_cadet(keycode, record) &&
#endif
#ifdef MAGIC_KEYCODE_ENABLE
            process_magic(keycode, record) &&
#endif
#ifdef GRAVE_ESC_ENABLE
            process_grave_esc(keycode, record) &&
#endif
#if defined(RGBLIGHT_ENABLE) || defined(RGB_MATRIX_ENABLE)
            process_rgb(keycode, record) &&
#endif
#ifdef JOYSTICK_ENABLE
            process_joystick(keycode, record) &&
#endif
            true)) {
        return false;
    }

    if (record->event.pressed) {
        switch (keycode) {
#ifndef NO_RESET
            case RESET:
                reset_keyboard();
                return false;
#endif
#ifndef NO_DEBUG
            case DEBUG:
                debug_enable ^= 1;
                if (debug_enable) {
                    print("DEBUG: enabled.\n");
                } else {
                    print("DEBUG: disabled.\n");
                }
#endif
                return false;
            case EEPROM_RESET:
                eeconfig_init();
                return false;
#ifdef VELOCIKEY_ENABLE
            case VLK_TOG:
                velocikey_toggle();
                return false;
#endif
#ifdef BLUETOOTH_ENABLE
            case OUT_AUTO:
                set_output(OUTPUT_AUTO);
                return false;
            case OUT_USB:
                set_output(OUTPUT_USB);
                return false;
            case OUT_BT:
                set_output(OUTPUT_BLUETOOTH);
                return false;
#endif
        }
    }

    return process_action_kb(record);
}

// clang-format off

/* Bit-Packed look-up table to convert an ASCII character to whether
 * [Shift] needs to be sent with the keycode.
 */
__attribute__((weak)) const uint8_t ascii_to_shift_lut[16] PROGMEM = {
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),

    KCLUT_ENTRY(0, 1, 1, 1, 1, 1, 1, 0),
    KCLUT_ENTRY(1, 1, 1, 1, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 1, 0, 1, 0, 1, 1),
    KCLUT_ENTRY(1, 1, 1, 1, 1, 1, 1, 1),
    KCLUT_ENTRY(1, 1, 1, 1, 1, 1, 1, 1),
    KCLUT_ENTRY(1, 1, 1, 1, 1, 1, 1, 1),
    KCLUT_ENTRY(1, 1, 1, 0, 0, 0, 1, 1),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 1, 1, 1, 1, 0),
};

/* Bit-Packed look-up table to convert an ASCII character to whether
 * [AltGr] needs to be sent with the keycode.
 */
__attribute__((weak)) const uint8_t ascii_to_altgr_lut[16] PROGMEM = {
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),

    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
};

/* Bit-Packed look-up table to convert an ASCII character to whether
 * [Space] needs to be sent after the keycode
 */
__attribute__((weak)) const uint8_t ascii_to_dead_lut[16] PROGMEM = {
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),

    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
};

/* Look-up table to convert an ASCII character to a keycode.
 */
__attribute__((weak)) const uint8_t ascii_to_keycode_lut[128] PROGMEM = {
    // NUL   SOH      STX      ETX      EOT      ENQ      ACK      BEL
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    // BS    TAB      LF       VT       FF       CR       SO       SI
    KC_BSPC, KC_TAB,  KC_ENT,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    // DLE   DC1      DC2      DC3      DC4      NAK      SYN      ETB
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    // CAN   EM       SUB      ESC      FS       GS       RS       US
    XXXXXXX, XXXXXXX, XXXXXXX, KC_ESC,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,

    //       !        "        #        $        %        &        '
    KC_SPC,  KC_1,    KC_QUOT, KC_3,    KC_4,    KC_5,    KC_7,    KC_QUOT,
    // (     )        *        +        ,        -        .        /
    KC_9,    KC_0,    KC_8,    KC_EQL,  KC_COMM, KC_MINS, KC_DOT,  KC_SLSH,
    // 0     1        2        3        4        5        6        7
    KC_0,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,
    // 8     9        :        ;        <        =        >        ?
    KC_8,    KC_9,    KC_SCLN, KC_SCLN, KC_COMM, KC_EQL,  KC_DOT,  KC_SLSH,
    // @     A        B        C        D        E        F        G
    KC_2,    KC_A,    KC_B,    KC_C,    KC_D,    KC_E,    KC_F,    KC_G,
    // H     I        J        K        L        M        N        O
    KC_H,    KC_I,    KC_J,    KC_K,    KC_L,    KC_M,    KC_N,    KC_O,
    // P     Q        R        S        T        U        V        W
    KC_P,    KC_Q,    KC_R,    KC_S,    KC_T,    KC_U,    KC_V,    KC_W,
    // X     Y        Z        [        \        ]        ^        _
    KC_X,    KC_Y,    KC_Z,    KC_LBRC, KC_BSLS, KC_RBRC, KC_6,    KC_MINS,
    // `     a        b        c        d        e        f        g
    KC_GRV,  KC_A,    KC_B,    KC_C,    KC_D,    KC_E,    KC_F,    KC_G,
    // h     i        j        k        l        m        n        o
    KC_H,    KC_I,    KC_J,    KC_K,    KC_L,    KC_M,    KC_N,    KC_O,
    // p     q        r        s        t        u        v        w
    KC_P,    KC_Q,    KC_R,    KC_S,    KC_T,    KC_U,    KC_V,    KC_W,
    // x     y        z        {        |        }        ~        DEL
    KC_X,    KC_Y,    KC_Z,    KC_LBRC, KC_BSLS, KC_RBRC, KC_GRV,  KC_DEL
};

// clang-format on

// Note: we bit-pack in "reverse" order to optimize loading
#define PGM_LOADBIT(mem, pos) ((pgm_read_byte(&((mem)[(pos) / 8])) >> ((pos) % 8)) & 0x01)

void send_string(const char *str) { send_string_with_delay(str, 0); }

void send_string_P(const char *str) { send_string_with_delay_P(str, 0); }

void send_string_with_delay(const char *str, uint8_t interval) {
    while (1) {
        char ascii_code = *str;
        if (!ascii_code) break;
        if (ascii_code == SS_QMK_PREFIX) {
            ascii_code = *(++str);
            if (ascii_code == SS_TAP_CODE) {
                // tap
                uint8_t keycode = *(++str);
                tap_code(keycode);
            } else if (ascii_code == SS_DOWN_CODE) {
                // down
                uint8_t keycode = *(++str);
                register_code(keycode);
            } else if (ascii_code == SS_UP_CODE) {
                // up
                uint8_t keycode = *(++str);
                unregister_code(keycode);
            } else if (ascii_code == SS_DELAY_CODE) {
                // delay
                int     ms      = 0;
                uint8_t keycode = *(++str);
                while (isdigit(keycode)) {
                    ms *= 10;
                    ms += keycode - '0';
                    keycode = *(++str);
                }
                while (ms--) wait_ms(1);
            }
        } else {
            send_char(ascii_code);
        }
        ++str;
        // interval
        {
            uint8_t ms = interval;
            while (ms--) wait_ms(1);
        }
    }
}

void send_string_with_delay_P(const char *str, uint8_t interval) {
    while (1) {
        char ascii_code = pgm_read_byte(str);
        if (!ascii_code) break;
        if (ascii_code == SS_QMK_PREFIX) {
            ascii_code = pgm_read_byte(++str);
            if (ascii_code == SS_TAP_CODE) {
                // tap
                uint8_t keycode = pgm_read_byte(++str);
                tap_code(keycode);
            } else if (ascii_code == SS_DOWN_CODE) {
                // down
                uint8_t keycode = pgm_read_byte(++str);
                register_code(keycode);
            } else if (ascii_code == SS_UP_CODE) {
                // up
                uint8_t keycode = pgm_read_byte(++str);
                unregister_code(keycode);
            } else if (ascii_code == SS_DELAY_CODE) {
                // delay
                int     ms      = 0;
                uint8_t keycode = pgm_read_byte(++str);
                while (isdigit(keycode)) {
                    ms *= 10;
                    ms += keycode - '0';
                    keycode = pgm_read_byte(++str);
                }
                while (ms--) wait_ms(1);
            }
        } else {
            send_char(ascii_code);
        }
        ++str;
        // interval
        {
            uint8_t ms = interval;
            while (ms--) wait_ms(1);
        }
    }
}

void send_char(char ascii_code) {
#if defined(AUDIO_ENABLE) && defined(SENDSTRING_BELL)
    if (ascii_code == '\a') {  // BEL
        PLAY_SONG(bell_song);
        return;
    }
#endif

    uint8_t keycode    = pgm_read_byte(&ascii_to_keycode_lut[(uint8_t)ascii_code]);
    bool    is_shifted = PGM_LOADBIT(ascii_to_shift_lut, (uint8_t)ascii_code);
    bool    is_altgred = PGM_LOADBIT(ascii_to_altgr_lut, (uint8_t)ascii_code);
    bool    is_dead    = PGM_LOADBIT(ascii_to_dead_lut, (uint8_t)ascii_code);

    if (is_shifted) {
        register_code(KC_LSFT);
    }
    if (is_altgred) {
        register_code(KC_RALT);
    }
    tap_code(keycode);
    if (is_altgred) {
        unregister_code(KC_RALT);
    }
    if (is_shifted) {
        unregister_code(KC_LSFT);
    }
    if (is_dead) {
        tap_code(KC_SPACE);
    }
}

void set_single_persistent_default_layer(uint8_t default_layer) {
#if defined(AUDIO_ENABLE) && defined(DEFAULT_LAYER_SONGS)
    PLAY_SONG(default_layer_songs[default_layer]);
#endif
    eeconfig_update_default_layer(1U << default_layer);
    default_layer_set(1U << default_layer);
}

layer_state_t update_tri_layer_state(layer_state_t state, uint8_t layer1, uint8_t layer2, uint8_t layer3) {
    layer_state_t mask12 = (1UL << layer1) | (1UL << layer2);
    layer_state_t mask3  = 1UL << layer3;
    return (state & mask12) == mask12 ? (state | mask3) : (state & ~mask3);
}

void update_tri_layer(uint8_t layer1, uint8_t layer2, uint8_t layer3) { layer_state_set(update_tri_layer_state(layer_state, layer1, layer2, layer3)); }

void tap_random_base64(void) {
#if defined(__AVR_ATmega32U4__)
    uint8_t key = (TCNT0 + TCNT1 + TCNT3 + TCNT4) % 64;
#else
    uint8_t key = rand() % 64;
#endif
    switch (key) {
        case 0 ... 25:
            send_char(key + 'A');
            break;
        case 26 ... 51:
            send_char(key - 26 + 'a');
            break;
        case 52:
            send_char('0');
            break;
        case 53 ... 61:
            send_char(key - 53 + '1');
            break;
        case 62:
            send_char('+');
            break;
        case 63:
            send_char('/');
            break;
    }
}

void matrix_init_quantum() {
#ifdef BOOTMAGIC_LITE
    bootmagic_lite();
#endif
    if (!eeconfig_is_enabled()) {
        eeconfig_init();
    }
#if defined(LED_NUM_LOCK_PIN) || defined(LED_CAPS_LOCK_PIN) || defined(LED_SCROLL_LOCK_PIN) || defined(LED_COMPOSE_PIN) || defined(LED_KANA_PIN)
    // TODO: remove calls to led_init_ports from keyboards and remove ifdef
    led_init_ports();
#endif
#ifdef BACKLIGHT_ENABLE
#    ifdef LED_MATRIX_ENABLE
    led_matrix_init();
#    else
    backlight_init_ports();
#    endif
#endif
#ifdef AUDIO_ENABLE
    audio_init();
#endif
#ifdef RGB_MATRIX_ENABLE
    rgb_matrix_init();
#endif
#if defined(UNICODE_ENABLE) || defined(UNICODEMAP_ENABLE) || defined(UCIS_ENABLE)
    unicode_input_mode_init();
#endif
#ifdef HAPTIC_ENABLE
    haptic_init();
#endif
#if defined(BLUETOOTH_ENABLE) && defined(OUTPUT_AUTO_ENABLE)
    set_output(OUTPUT_AUTO);
#endif

    matrix_init_kb();
}

void matrix_scan_quantum() {
#if defined(AUDIO_ENABLE)
    // There are some tasks that need to be run a little bit
    // after keyboard startup, or else they will not work correctly
    // because of interaction with the USB device state, which
    // may still be in flux...
    //
    // At the moment the only feature that needs this is the
    // startup song.
    static bool     delayed_tasks_run  = false;
    static uint16_t delayed_task_timer = 0;
    if (!delayed_tasks_run) {
        if (!delayed_task_timer) {
            delayed_task_timer = timer_read();
        } else if (timer_elapsed(delayed_task_timer) > 300) {
            audio_startup();
            delayed_tasks_run = true;
        }
    }
#endif

#if defined(AUDIO_ENABLE) && !defined(NO_MUSIC_MODE)
    matrix_scan_music();
#endif

#ifdef SEQUENCER_ENABLE
    matrix_scan_sequencer();
#endif

#ifdef TAP_DANCE_ENABLE
    matrix_scan_tap_dance();
#endif

#ifdef COMBO_ENABLE
    matrix_scan_combo();
#endif

#ifdef LED_MATRIX_ENABLE
    led_matrix_task();
#endif

#ifdef WPM_ENABLE
    decay_wpm();
#endif

#ifdef HAPTIC_ENABLE
    haptic_task();
#endif

#ifdef DIP_SWITCH_ENABLE
    dip_switch_read(false);
#endif

#ifdef AUTO_SHIFT_ENABLE
    autoshift_matrix_scan();
#endif

    matrix_scan_kb();
}

#ifdef HD44780_ENABLED
#    include "hd44780.h"
#endif

// Functions for spitting out values
//

void send_dword(uint32_t number) {
    uint16_t word = (number >> 16);
    send_word(word);
    send_word(number & 0xFFFFUL);
}

void send_word(uint16_t number) {
    uint8_t byte = number >> 8;
    send_byte(byte);
    send_byte(number & 0xFF);
}

void send_byte(uint8_t number) {
    uint8_t nibble = number >> 4;
    send_nibble(nibble);
    send_nibble(number & 0xF);
}

void send_nibble(uint8_t number) { tap_code16(hex_to_keycode(number)); }

__attribute__((weak)) uint16_t hex_to_keycode(uint8_t hex) {
    hex = hex & 0xF;
    if (hex == 0x0) {
        return KC_0;
    } else if (hex < 0xA) {
        return KC_1 + (hex - 0x1);
    } else {
        return KC_A + (hex - 0xA);
    }
}

void api_send_unicode(uint32_t unicode) {
#ifdef API_ENABLE
    uint8_t chunk[4];
    dword_to_bytes(unicode, chunk);
    MT_SEND_DATA(DT_UNICODE, chunk, 5);
#endif
}

//------------------------------------------------------------------------------
// Override these functions in your keymap file to play different tunes on
// different events such as startup and bootloader jump

__attribute__((weak)) void startup_user() {}

__attribute__((weak)) void shutdown_user() {}