#include "process_midi.h"
+#if 0
bool midi_activated = false;
uint8_t midi_starting_note = 0x0C;
int midi_offset = 7;
-
-bool process_midi(uint16_t keycode, keyrecord_t *record) {
- if (keycode == MI_ON && record->event.pressed) {
- midi_activated = true;
-#ifdef AUDIO_ENABLE
- music_scale_user();
#endif
- return false;
- }
- if (keycode == MI_OFF && record->event.pressed) {
- midi_activated = false;
- midi_send_cc(&midi_device, 0, 0x7B, 0);
- return false;
- }
+typedef union {
+ uint16_t raw;
+ struct {
+ uint8_t octave :4;
+ uint8_t velocity :4;
+ uint8_t channel :4;
+ };
+} midi_config_t;
+
+midi_config_t midi_config;
+
+#define MIDI_INVALID_NOTE 0xFF
+
+#define MIDI_MAX_NOTES_ON 10
+
+typedef struct {
+ uint8_t note;
+ uint8_t tone;
+} midi_notes_on_array_entry_t;
+
+typedef struct {
+ uint8_t length;
+ midi_notes_on_array_entry_t values[MIDI_MAX_NOTES_ON];
+} midi_notes_on_array_t;
+
+static midi_notes_on_array_t notes_on;
+
+inline uint8_t compute_velocity(uint8_t setting)
+{
+ return (setting + 1) * (128 / (MIDI_VELOCITY_MAX - MIDI_VELOCITY_MIN + 1));
+}
+
+void midi_init(void)
+{
+ midi_config.octave = MI_OCT_0 - MIDI_OCTAVE_MIN;
+ midi_config.velocity = (MIDI_VELOCITY_MAX - MIDI_VELOCITY_MIN);
+ midi_config.channel = 0;
+ notes_on.length = 0;
+}
+
+bool process_midi(uint16_t keycode, keyrecord_t *record)
+{
+ switch (keycode) {
+ case MIDI_TONE_MIN ... MIDI_TONE_MAX:
+ {
+ uint8_t channel = midi_config.channel;
+ uint8_t tone = keycode - MIDI_TONE_MIN;
+ uint8_t velocity = compute_velocity(midi_config.velocity);
+ if (record->event.pressed && notes_on.length < MIDI_MAX_NOTES_ON) {
+ uint8_t note = 12 * midi_config.octave + tone;
+ midi_send_noteon(&midi_device, channel, note, velocity);
+ dprintf("midi noteon channel:%d note:%d velocity:%d\n", channel, note, velocity);
+ notes_on.values[notes_on.length].note = note;
+ notes_on.values[notes_on.length].tone = tone;
+ notes_on.length++;
+ }
+ else {
+ for (uint8_t i = 0; i < notes_on.length; i++) {
+ uint8_t note = notes_on.values[i].note;
+ if (tone == notes_on.values[i].tone) {
+ midi_send_noteoff(&midi_device, channel, note, velocity);
+ dprintf("midi noteoff channel:%d note:%d velocity:%d\n", channel, note, velocity);
- if (midi_activated) {
- if (record->event.key.col == (MATRIX_COLS - 1) && record->event.key.row == (MATRIX_ROWS - 1)) {
- if (record->event.pressed) {
- midi_starting_note++; // Change key
- midi_send_cc(&midi_device, 0, 0x7B, 0);
- }
- return false;
- }
- if (record->event.key.col == (MATRIX_COLS - 2) && record->event.key.row == (MATRIX_ROWS - 1)) {
- if (record->event.pressed) {
- midi_starting_note--; // Change key
- midi_send_cc(&midi_device, 0, 0x7B, 0);
- }
- return false;
- }
- if (record->event.key.col == (MATRIX_COLS - 3) && record->event.key.row == (MATRIX_ROWS - 1) && record->event.pressed) {
- midi_offset++; // Change scale
- midi_send_cc(&midi_device, 0, 0x7B, 0);
- return false;
- }
- if (record->event.key.col == (MATRIX_COLS - 4) && record->event.key.row == (MATRIX_ROWS - 1) && record->event.pressed) {
- midi_offset--; // Change scale
- midi_send_cc(&midi_device, 0, 0x7B, 0);
- return false;
- }
- // basic
- // uint8_t note = (midi_starting_note + SCALE[record->event.key.col + midi_offset])+12*(MATRIX_ROWS - record->event.key.row);
- // advanced
- // uint8_t note = (midi_starting_note + record->event.key.col + midi_offset)+12*(MATRIX_ROWS - record->event.key.row);
- // guitar
- uint8_t note = (midi_starting_note + record->event.key.col + midi_offset)+5*(MATRIX_ROWS - record->event.key.row);
- // violin
- // uint8_t note = (midi_starting_note + record->event.key.col + midi_offset)+7*(MATRIX_ROWS - record->event.key.row);
+ for (uint8_t j=i; j < notes_on.length - 1; j++)
+ {
+ notes_on.values[j] = notes_on.values[j + 1];
+ }
- if (record->event.pressed) {
- // midi_send_noteon(&midi_device, record->event.key.row, midi_starting_note + SCALE[record->event.key.col], 127);
- midi_send_noteon(&midi_device, 0, note, 127);
- } else {
- // midi_send_noteoff(&midi_device, record->event.key.row, midi_starting_note + SCALE[record->event.key.col], 127);
- midi_send_noteoff(&midi_device, 0, note, 127);
- }
+ notes_on.length--;
+ break;
+ }
+ }
+ }
+ return false;
+ }
+ case MIDI_OCTAVE_MIN ... MIDI_OCTAVE_MAX:
+ if (record->event.pressed)
+ midi_config.octave = keycode - MIDI_OCTAVE_MIN;
+ return false;
+ case MI_OCTD:
+ if (record->event.pressed && midi_config.octave > 0)
+ midi_config.octave--;
+ return false;
+ case MI_OCTU:
+ if (record->event.pressed && midi_config.octave < (MIDI_OCTAVE_MAX - MIDI_OCTAVE_MIN))
+ midi_config.octave++;
+ return false;
+ case MIDI_VELOCITY_MIN ... MIDI_VELOCITY_MAX:
+ if (record->event.pressed)
+ midi_config.velocity = keycode - MIDI_VELOCITY_MIN;
+ return false;
+ case MI_VELD:
+ if (record->event.pressed && midi_config.velocity > 0)
+ midi_config.velocity--;
+ return false;
+ case MI_VELU:
+ if (record->event.pressed)
+ midi_config.velocity++;
+ return false;
+ case MIDI_CHANNEL_MIN ... MIDI_CHANNEL_MAX:
+ if (record->event.pressed)
+ midi_config.channel = keycode - MIDI_CHANNEL_MIN;
+ return false;
+ case MI_CHD:
+ if (record->event.pressed)
+ midi_config.channel--;
+ return false;
+ case MI_CHU:
+ if (record->event.pressed)
+ midi_config.channel++;
+ return false;
+ case MI_SUS:
+ //TODO
+ return false;
+ };
- if (keycode < 0xFF) // ignores all normal keycodes, but lets RAISE, LOWER, etc through
- return false;
- }
- return true;
+ return true;
}
projects / qmk_firmware.git / blobdiff