process_midi.h

 1/* Copyright 2016 Jack Humbert
 2 *
 3 * This program is free software: you can redistribute it and/or modify
 4 * it under the terms of the GNU General Public License as published by
 5 * the Free Software Foundation, either version 2 of the License, or
 6 * (at your option) any later version.
 7 *
 8 * This program is distributed in the hope that it will be useful,
 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
15 */
16
17#pragma once
18
19#include <stdint.h>
20#include <stdbool.h>
21#include "action.h"
22#include "quantum_keycodes.h"
23
24#ifdef MIDI_ENABLE
25
26#    ifdef MIDI_BASIC
27void process_midi_basic_noteon(uint8_t note);
28void process_midi_basic_noteoff(uint8_t note);
29void process_midi_all_notes_off(void);
30#    endif
31
32void midi_task(void);
33
34#    ifdef MIDI_ADVANCED
35typedef union {
36    uint32_t raw;
37    struct {
38        uint8_t octave : 4;
39        int8_t  transpose : 4;
40        uint8_t velocity : 7;
41        uint8_t channel : 4;
42        uint8_t modulation_interval : 4;
43    };
44} midi_config_t;
45
46extern midi_config_t midi_config;
47
48void midi_init(void);
49bool process_midi(uint16_t keycode, keyrecord_t *record);
50
51#        define MIDI_INVALID_NOTE 0xFF
52#        define MIDI_TONE_COUNT (MIDI_TONE_MAX - MIDI_TONE_MIN + 1)
53
54uint8_t midi_compute_note(uint16_t keycode);
55#    endif // MIDI_ADVANCED
56
57#endif // MIDI_ENABLE