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-rw-r--r--quantum/audio/audio.c780
-rw-r--r--quantum/audio/audio.h106
-rw-r--r--quantum/audio/audio_pwm.c658
-rw-r--r--quantum/audio/luts.c398
-rw-r--r--quantum/audio/luts.h31
-rw-r--r--quantum/audio/musical_notes.h233
-rw-r--r--quantum/audio/song_list.h179
-rw-r--r--quantum/audio/voices.c296
-rw-r--r--quantum/audio/voices.h50
-rw-r--r--quantum/audio/wave.h281
10 files changed, 3012 insertions, 0 deletions
diff --git a/quantum/audio/audio.c b/quantum/audio/audio.c
new file mode 100644
index 000000000..c924f2bd5
--- /dev/null
+++ b/quantum/audio/audio.c
@@ -0,0 +1,780 @@
+/* Copyright 2016 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 <stdio.h>
+#include <string.h>
+//#include <math.h>
+#include <avr/pgmspace.h>
+#include <avr/interrupt.h>
+#include <avr/io.h>
+#include "print.h"
+#include "audio.h"
+#include "keymap.h"
+
+#include "eeconfig.h"
+
+#define CPU_PRESCALER 8
+
+// -----------------------------------------------------------------------------
+// Timer Abstractions
+// -----------------------------------------------------------------------------
+
+// TIMSK3 - Timer/Counter #3 Interrupt Mask Register
+// Turn on/off 3A interputs, stopping/enabling the ISR calls
+#ifdef C6_AUDIO
+ #define ENABLE_AUDIO_COUNTER_3_ISR TIMSK3 |= _BV(OCIE3A)
+ #define DISABLE_AUDIO_COUNTER_3_ISR TIMSK3 &= ~_BV(OCIE3A)
+#endif
+
+#ifdef B5_AUDIO
+ #define ENABLE_AUDIO_COUNTER_1_ISR TIMSK1 |= _BV(OCIE1A)
+ #define DISABLE_AUDIO_COUNTER_1_ISR TIMSK1 &= ~_BV(OCIE1A)
+#endif
+
+// TCCR3A: Timer/Counter #3 Control Register
+// Compare Output Mode (COM3An) = 0b00 = Normal port operation, OC3A disconnected from PC6
+
+#ifdef C6_AUDIO
+ #define ENABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A |= _BV(COM3A1);
+ #define DISABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A &= ~(_BV(COM3A1) | _BV(COM3A0));
+#endif
+
+#ifdef B5_AUDIO
+ #define ENABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A |= _BV(COM1A1);
+ #define DISABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A &= ~(_BV(COM1A1) | _BV(COM1A0));
+#endif
+
+// Fast PWM Mode Controls
+
+#ifdef C6_AUDIO
+ #define TIMER_3_PERIOD ICR3
+ #define TIMER_3_DUTY_CYCLE OCR3A
+#endif
+
+#ifdef B5_AUDIO
+ #define TIMER_1_PERIOD ICR1
+ #define TIMER_1_DUTY_CYCLE OCR1A
+#endif
+
+
+// -----------------------------------------------------------------------------
+
+
+int voices = 0;
+int voice_place = 0;
+float frequency = 0;
+float frequency_alt = 0;
+int volume = 0;
+long position = 0;
+
+float frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+bool sliding = false;
+
+float place = 0;
+
+uint8_t * sample;
+uint16_t sample_length = 0;
+
+bool playing_notes = false;
+bool playing_note = false;
+float note_frequency = 0;
+float note_length = 0;
+uint8_t note_tempo = TEMPO_DEFAULT;
+float note_timbre = TIMBRE_DEFAULT;
+uint16_t note_position = 0;
+float (* notes_pointer)[][2];
+uint16_t notes_count;
+bool notes_repeat;
+float notes_rest;
+bool note_resting = false;
+
+uint8_t current_note = 0;
+uint8_t rest_counter = 0;
+
+#ifdef VIBRATO_ENABLE
+float vibrato_counter = 0;
+float vibrato_strength = .5;
+float vibrato_rate = 0.125;
+#endif
+
+float polyphony_rate = 0;
+
+static bool audio_initialized = false;
+
+audio_config_t audio_config;
+
+uint16_t envelope_index = 0;
+bool glissando = true;
+
+void audio_init()
+{
+
+ // Check EEPROM
+ if (!eeconfig_is_enabled())
+ {
+ eeconfig_init();
+ }
+ audio_config.raw = eeconfig_read_audio();
+
+ // Set port PC6 (OC3A and /OC4A) as output
+
+ #ifdef C6_AUDIO
+ DDRC |= _BV(PORTC6);
+ #else
+ DDRC |= _BV(PORTC6);
+ PORTC &= ~_BV(PORTC6);
+ #endif
+
+ #ifdef B5_AUDIO
+ DDRB |= _BV(PORTB5);
+ #else
+ DDRB |= _BV(PORTB5);
+ PORTB &= ~_BV(PORTB5);
+ #endif
+
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ #endif
+
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ #endif
+
+ // TCCR3A / TCCR3B: Timer/Counter #3 Control Registers
+ // Compare Output Mode (COM3An) = 0b00 = Normal port operation, OC3A disconnected from PC6
+ // Waveform Generation Mode (WGM3n) = 0b1110 = Fast PWM Mode 14 (Period = ICR3, Duty Cycle = OCR3A)
+ // Clock Select (CS3n) = 0b010 = Clock / 8
+
+ #ifdef C6_AUDIO
+ TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
+ TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
+ #endif
+
+ #ifdef B5_AUDIO
+ TCCR1A = (0 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (0 << WGM10);
+ TCCR1B = (1 << WGM13) | (1 << WGM12) | (0 << CS12) | (1 << CS11) | (0 << CS10);
+ #endif
+
+ audio_initialized = true;
+}
+
+void stop_all_notes()
+{
+ dprintf("audio stop all notes");
+
+ if (!audio_initialized) {
+ audio_init();
+ }
+ voices = 0;
+
+
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ DISABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ DISABLE_AUDIO_COUNTER_1_OUTPUT;
+ #endif
+
+ playing_notes = false;
+ playing_note = false;
+ frequency = 0;
+ frequency_alt = 0;
+ volume = 0;
+
+ for (uint8_t i = 0; i < 8; i++)
+ {
+ frequencies[i] = 0;
+ volumes[i] = 0;
+ }
+}
+
+void stop_note(float freq)
+{
+ dprintf("audio stop note freq=%d", (int)freq);
+
+ if (playing_note) {
+ if (!audio_initialized) {
+ audio_init();
+ }
+ for (int i = 7; i >= 0; i--) {
+ if (frequencies[i] == freq) {
+ frequencies[i] = 0;
+ volumes[i] = 0;
+ for (int j = i; (j < 7); j++) {
+ frequencies[j] = frequencies[j+1];
+ frequencies[j+1] = 0;
+ volumes[j] = volumes[j+1];
+ volumes[j+1] = 0;
+ }
+ break;
+ }
+ }
+ voices--;
+ if (voices < 0)
+ voices = 0;
+ if (voice_place >= voices) {
+ voice_place = 0;
+ }
+ if (voices == 0) {
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ DISABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ DISABLE_AUDIO_COUNTER_1_OUTPUT;
+ #endif
+ frequency = 0;
+ frequency_alt = 0;
+ volume = 0;
+ playing_note = false;
+ }
+ }
+}
+
+#ifdef VIBRATO_ENABLE
+
+float mod(float a, int b)
+{
+ float r = fmod(a, b);
+ return r < 0 ? r + b : r;
+}
+
+float vibrato(float average_freq) {
+ #ifdef VIBRATO_STRENGTH_ENABLE
+ float vibrated_freq = average_freq * pow(vibrato_lut[(int)vibrato_counter], vibrato_strength);
+ #else
+ float vibrated_freq = average_freq * vibrato_lut[(int)vibrato_counter];
+ #endif
+ vibrato_counter = mod((vibrato_counter + vibrato_rate * (1.0 + 440.0/average_freq)), VIBRATO_LUT_LENGTH);
+ return vibrated_freq;
+}
+
+#endif
+
+#ifdef C6_AUDIO
+ISR(TIMER3_COMPA_vect)
+{
+ float freq;
+
+ if (playing_note) {
+ if (voices > 0) {
+
+ #ifdef B5_AUDIO
+ float freq_alt = 0;
+ if (voices > 1) {
+ if (polyphony_rate == 0) {
+ if (glissando) {
+ if (frequency_alt != 0 && frequency_alt < frequencies[voices - 2] && frequency_alt < frequencies[voices - 2] * pow(2, -440/frequencies[voices - 2]/12/2)) {
+ frequency_alt = frequency_alt * pow(2, 440/frequency_alt/12/2);
+ } else if (frequency_alt != 0 && frequency_alt > frequencies[voices - 2] && frequency_alt > frequencies[voices - 2] * pow(2, 440/frequencies[voices - 2]/12/2)) {
+ frequency_alt = frequency_alt * pow(2, -440/frequency_alt/12/2);
+ } else {
+ frequency_alt = frequencies[voices - 2];
+ }
+ } else {
+ frequency_alt = frequencies[voices - 2];
+ }
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq_alt = vibrato(frequency_alt);
+ } else {
+ freq_alt = frequency_alt;
+ }
+ #else
+ freq_alt = frequency_alt;
+ #endif
+ }
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+
+ freq_alt = voice_envelope(freq_alt);
+
+ if (freq_alt < 30.517578125) {
+ freq_alt = 30.52;
+ }
+
+ TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq_alt * CPU_PRESCALER));
+ TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq_alt * CPU_PRESCALER)) * note_timbre);
+ }
+ #endif
+
+ if (polyphony_rate > 0) {
+ if (voices > 1) {
+ voice_place %= voices;
+ if (place++ > (frequencies[voice_place] / polyphony_rate / CPU_PRESCALER)) {
+ voice_place = (voice_place + 1) % voices;
+ place = 0.0;
+ }
+ }
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequencies[voice_place]);
+ } else {
+ freq = frequencies[voice_place];
+ }
+ #else
+ freq = frequencies[voice_place];
+ #endif
+ } else {
+ if (glissando) {
+ if (frequency != 0 && frequency < frequencies[voices - 1] && frequency < frequencies[voices - 1] * pow(2, -440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, 440/frequency/12/2);
+ } else if (frequency != 0 && frequency > frequencies[voices - 1] && frequency > frequencies[voices - 1] * pow(2, 440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, -440/frequency/12/2);
+ } else {
+ frequency = frequencies[voices - 1];
+ }
+ } else {
+ frequency = frequencies[voices - 1];
+ }
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequency);
+ } else {
+ freq = frequency;
+ }
+ #else
+ freq = frequency;
+ #endif
+ }
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+
+ freq = voice_envelope(freq);
+
+ if (freq < 30.517578125) {
+ freq = 30.52;
+ }
+
+ TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
+ TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
+ }
+ }
+
+ if (playing_notes) {
+ if (note_frequency > 0) {
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(note_frequency);
+ } else {
+ freq = note_frequency;
+ }
+ #else
+ freq = note_frequency;
+ #endif
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+ freq = voice_envelope(freq);
+
+ TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
+ TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
+ } else {
+ TIMER_3_PERIOD = 0;
+ TIMER_3_DUTY_CYCLE = 0;
+ }
+
+ note_position++;
+ bool end_of_note = false;
+ if (TIMER_3_PERIOD > 0) {
+ end_of_note = (note_position >= (note_length / TIMER_3_PERIOD * 0xFFFF));
+ } else {
+ end_of_note = (note_position >= (note_length * 0x7FF));
+ }
+
+ if (end_of_note) {
+ current_note++;
+ if (current_note >= notes_count) {
+ if (notes_repeat) {
+ current_note = 0;
+ } else {
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ DISABLE_AUDIO_COUNTER_3_OUTPUT;
+ playing_notes = false;
+ return;
+ }
+ }
+ if (!note_resting && (notes_rest > 0)) {
+ note_resting = true;
+ note_frequency = 0;
+ note_length = notes_rest;
+ current_note--;
+ } else {
+ note_resting = false;
+ envelope_index = 0;
+ note_frequency = (*notes_pointer)[current_note][0];
+ note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
+ }
+
+ note_position = 0;
+ }
+ }
+
+ if (!audio_config.enable) {
+ playing_notes = false;
+ playing_note = false;
+ }
+}
+#endif
+
+#ifdef B5_AUDIO
+ISR(TIMER1_COMPA_vect)
+{
+ #if defined(B5_AUDIO) && !defined(C6_AUDIO)
+ float freq = 0;
+
+ if (playing_note) {
+ if (voices > 0) {
+ if (polyphony_rate > 0) {
+ if (voices > 1) {
+ voice_place %= voices;
+ if (place++ > (frequencies[voice_place] / polyphony_rate / CPU_PRESCALER)) {
+ voice_place = (voice_place + 1) % voices;
+ place = 0.0;
+ }
+ }
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequencies[voice_place]);
+ } else {
+ freq = frequencies[voice_place];
+ }
+ #else
+ freq = frequencies[voice_place];
+ #endif
+ } else {
+ if (glissando) {
+ if (frequency != 0 && frequency < frequencies[voices - 1] && frequency < frequencies[voices - 1] * pow(2, -440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, 440/frequency/12/2);
+ } else if (frequency != 0 && frequency > frequencies[voices - 1] && frequency > frequencies[voices - 1] * pow(2, 440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, -440/frequency/12/2);
+ } else {
+ frequency = frequencies[voices - 1];
+ }
+ } else {
+ frequency = frequencies[voices - 1];
+ }
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequency);
+ } else {
+ freq = frequency;
+ }
+ #else
+ freq = frequency;
+ #endif
+ }
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+
+ freq = voice_envelope(freq);
+
+ if (freq < 30.517578125) {
+ freq = 30.52;
+ }
+
+ TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
+ TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
+ }
+ }
+
+ if (playing_notes) {
+ if (note_frequency > 0) {
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(note_frequency);
+ } else {
+ freq = note_frequency;
+ }
+ #else
+ freq = note_frequency;
+ #endif
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+ freq = voice_envelope(freq);
+
+ TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
+ TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
+ } else {
+ TIMER_1_PERIOD = 0;
+ TIMER_1_DUTY_CYCLE = 0;
+ }
+
+ note_position++;
+ bool end_of_note = false;
+ if (TIMER_1_PERIOD > 0) {
+ end_of_note = (note_position >= (note_length / TIMER_1_PERIOD * 0xFFFF));
+ } else {
+ end_of_note = (note_position >= (note_length * 0x7FF));
+ }
+
+ if (end_of_note) {
+ current_note++;
+ if (current_note >= notes_count) {
+ if (notes_repeat) {
+ current_note = 0;
+ } else {
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ DISABLE_AUDIO_COUNTER_1_OUTPUT;
+ playing_notes = false;
+ return;
+ }
+ }
+ if (!note_resting && (notes_rest > 0)) {
+ note_resting = true;
+ note_frequency = 0;
+ note_length = notes_rest;
+ current_note--;
+ } else {
+ note_resting = false;
+ envelope_index = 0;
+ note_frequency = (*notes_pointer)[current_note][0];
+ note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
+ }
+
+ note_position = 0;
+ }
+ }
+
+ if (!audio_config.enable) {
+ playing_notes = false;
+ playing_note = false;
+ }
+#endif
+}
+#endif
+
+void play_note(float freq, int vol) {
+
+ dprintf("audio play note freq=%d vol=%d", (int)freq, vol);
+
+ if (!audio_initialized) {
+ audio_init();
+ }
+
+ if (audio_config.enable && voices < 8) {
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ #endif
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ #endif
+
+ // Cancel notes if notes are playing
+ if (playing_notes)
+ stop_all_notes();
+
+ playing_note = true;
+
+ envelope_index = 0;
+
+ if (freq > 0) {
+ frequencies[voices] = freq;
+ volumes[voices] = vol;
+ voices++;
+ }
+
+ #ifdef C6_AUDIO
+ ENABLE_AUDIO_COUNTER_3_ISR;
+ ENABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ #ifdef B5_AUDIO
+ #ifdef C6_AUDIO
+ if (voices > 1) {
+ ENABLE_AUDIO_COUNTER_1_ISR;
+ ENABLE_AUDIO_COUNTER_1_OUTPUT;
+ }
+ #else
+ ENABLE_AUDIO_COUNTER_1_ISR;
+ ENABLE_AUDIO_COUNTER_1_OUTPUT;
+ #endif
+ #endif
+ }
+
+}
+
+void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest)
+{
+
+ if (!audio_initialized) {
+ audio_init();
+ }
+
+ if (audio_config.enable) {
+
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ #endif
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ #endif
+
+ // Cancel note if a note is playing
+ if (playing_note)
+ stop_all_notes();
+
+ playing_notes = true;
+
+ notes_pointer = np;
+ notes_count = n_count;
+ notes_repeat = n_repeat;
+ notes_rest = n_rest;
+
+ place = 0;
+ current_note = 0;
+
+ note_frequency = (*notes_pointer)[current_note][0];
+ note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
+ note_position = 0;
+
+
+ #ifdef C6_AUDIO
+ ENABLE_AUDIO_COUNTER_3_ISR;
+ ENABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ #ifdef B5_AUDIO
+ #ifndef C6_AUDIO
+ ENABLE_AUDIO_COUNTER_1_ISR;
+ ENABLE_AUDIO_COUNTER_1_OUTPUT;
+ #endif
+ #endif
+ }
+
+}
+
+bool is_playing_notes(void) {
+ return playing_notes;
+}
+
+bool is_audio_on(void) {
+ return (audio_config.enable != 0);
+}
+
+void audio_toggle(void) {
+ audio_config.enable ^= 1;
+ eeconfig_update_audio(audio_config.raw);
+ if (audio_config.enable)
+ audio_on_user();
+}
+
+void audio_on(void) {
+ audio_config.enable = 1;
+ eeconfig_update_audio(audio_config.raw);
+ audio_on_user();
+}
+
+void audio_off(void) {
+ audio_config.enable = 0;
+ eeconfig_update_audio(audio_config.raw);
+}
+
+#ifdef VIBRATO_ENABLE
+
+// Vibrato rate functions
+
+void set_vibrato_rate(float rate) {
+ vibrato_rate = rate;
+}
+
+void increase_vibrato_rate(float change) {
+ vibrato_rate *= change;
+}
+
+void decrease_vibrato_rate(float change) {
+ vibrato_rate /= change;
+}
+
+#ifdef VIBRATO_STRENGTH_ENABLE
+
+void set_vibrato_strength(float strength) {
+ vibrato_strength = strength;
+}
+
+void increase_vibrato_strength(float change) {
+ vibrato_strength *= change;
+}
+
+void decrease_vibrato_strength(float change) {
+ vibrato_strength /= change;
+}
+
+#endif /* VIBRATO_STRENGTH_ENABLE */
+
+#endif /* VIBRATO_ENABLE */
+
+// Polyphony functions
+
+void set_polyphony_rate(float rate) {
+ polyphony_rate = rate;
+}
+
+void enable_polyphony() {
+ polyphony_rate = 5;
+}
+
+void disable_polyphony() {
+ polyphony_rate = 0;
+}
+
+void increase_polyphony_rate(float change) {
+ polyphony_rate *= change;
+}
+
+void decrease_polyphony_rate(float change) {
+ polyphony_rate /= change;
+}
+
+// Timbre function
+
+void set_timbre(float timbre) {
+ note_timbre = timbre;
+}
+
+// Tempo functions
+
+void set_tempo(uint8_t tempo) {
+ note_tempo = tempo;
+}
+
+void decrease_tempo(uint8_t tempo_change) {
+ note_tempo += tempo_change;
+}
+
+void increase_tempo(uint8_t tempo_change) {
+ if (note_tempo - tempo_change < 10) {
+ note_tempo = 10;
+ } else {
+ note_tempo -= tempo_change;
+ }
+}
diff --git a/quantum/audio/audio.h b/quantum/audio/audio.h
new file mode 100644
index 000000000..27fdc2ab6
--- /dev/null
+++ b/quantum/audio/audio.h
@@ -0,0 +1,106 @@
+/* Copyright 2016 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/>.
+ */
+#ifndef AUDIO_H
+#define AUDIO_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "musical_notes.h"
+#include "song_list.h"
+#include "voices.h"
+#include "quantum.h"
+
+// Largely untested PWM audio mode (doesn't sound as good)
+// #define PWM_AUDIO
+
+// #define VIBRATO_ENABLE
+
+// Enable vibrato strength/amplitude - slows down ISR too much
+// #define VIBRATO_STRENGTH_ENABLE
+
+typedef union {
+ uint8_t raw;
+ struct {
+ bool enable :1;
+ uint8_t level :7;
+ };
+} audio_config_t;
+
+bool is_audio_on(void);
+void audio_toggle(void);
+void audio_on(void);
+void audio_off(void);
+
+// Vibrato rate functions
+
+#ifdef VIBRATO_ENABLE
+
+void set_vibrato_rate(float rate);
+void increase_vibrato_rate(float change);
+void decrease_vibrato_rate(float change);
+
+#ifdef VIBRATO_STRENGTH_ENABLE
+
+void set_vibrato_strength(float strength);
+void increase_vibrato_strength(float change);
+void decrease_vibrato_strength(float change);
+
+#endif
+
+#endif
+
+// Polyphony functions
+
+void set_polyphony_rate(float rate);
+void enable_polyphony(void);
+void disable_polyphony(void);
+void increase_polyphony_rate(float change);
+void decrease_polyphony_rate(float change);
+
+void set_timbre(float timbre);
+void set_tempo(uint8_t tempo);
+
+void increase_tempo(uint8_t tempo_change);
+void decrease_tempo(uint8_t tempo_change);
+
+void audio_init(void);
+
+#ifdef PWM_AUDIO
+void play_sample(uint8_t * s, uint16_t l, bool r);
+#endif
+void play_note(float freq, int vol);
+void stop_note(float freq);
+void stop_all_notes(void);
+void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest);
+
+#define SCALE (int8_t []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
+ 0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \
+ 0 + (12*2), 2 + (12*2), 4 + (12*2), 5 + (12*2), 7 + (12*2), 9 + (12*2), 11 + (12*2), \
+ 0 + (12*3), 2 + (12*3), 4 + (12*3), 5 + (12*3), 7 + (12*3), 9 + (12*3), 11 + (12*3), \
+ 0 + (12*4), 2 + (12*4), 4 + (12*4), 5 + (12*4), 7 + (12*4), 9 + (12*4), 11 + (12*4), }
+
+// These macros are used to allow play_notes to play an array of indeterminate
+// length. This works around the limitation of C's sizeof operation on pointers.
+// The global float array for the song must be used here.
+#define NOTE_ARRAY_SIZE(x) ((int16_t)(sizeof(x) / (sizeof(x[0]))))
+#define PLAY_NOTE_ARRAY(note_array, note_repeat, note_rest_style) play_notes(&note_array, NOTE_ARRAY_SIZE((note_array)), (note_repeat), (note_rest_style));
+
+
+bool is_playing_notes(void);
+
+#endif
diff --git a/quantum/audio/audio_pwm.c b/quantum/audio/audio_pwm.c
new file mode 100644
index 000000000..ded86edee
--- /dev/null
+++ b/quantum/audio/audio_pwm.c
@@ -0,0 +1,658 @@
+/* Copyright 2016 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 <stdio.h>
+#include <string.h>
+//#include <math.h>
+#include <avr/pgmspace.h>
+#include <avr/interrupt.h>
+#include <avr/io.h>
+#include "print.h"
+#include "audio.h"
+#include "keymap.h"
+
+#include "eeconfig.h"
+
+#define PI 3.14159265
+
+#define CPU_PRESCALER 8
+
+
+// Timer Abstractions
+
+// TIMSK3 - Timer/Counter #3 Interrupt Mask Register
+// Turn on/off 3A interputs, stopping/enabling the ISR calls
+#define ENABLE_AUDIO_COUNTER_3_ISR TIMSK3 |= _BV(OCIE3A)
+#define DISABLE_AUDIO_COUNTER_3_ISR TIMSK3 &= ~_BV(OCIE3A)
+
+
+// TCCR3A: Timer/Counter #3 Control Register
+// Compare Output Mode (COM3An) = 0b00 = Normal port operation, OC3A disconnected from PC6
+#define ENABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A |= _BV(COM3A1);
+#define DISABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A &= ~(_BV(COM3A1) | _BV(COM3A0));
+
+
+#define NOTE_PERIOD ICR3
+#define NOTE_DUTY_CYCLE OCR3A
+
+
+#ifdef PWM_AUDIO
+ #include "wave.h"
+ #define SAMPLE_DIVIDER 39
+ #define SAMPLE_RATE (2000000.0/SAMPLE_DIVIDER/2048)
+ // Resistor value of 1/ (2 * PI * 10nF * (2000000 hertz / SAMPLE_DIVIDER / 10)) for 10nF cap
+
+ float places[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+ uint16_t place_int = 0;
+ bool repeat = true;
+#endif
+
+void delay_us(int count) {
+ while(count--) {
+ _delay_us(1);
+ }
+}
+
+int voices = 0;
+int voice_place = 0;
+float frequency = 0;
+int volume = 0;
+long position = 0;
+
+float frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+bool sliding = false;
+
+float place = 0;
+
+uint8_t * sample;
+uint16_t sample_length = 0;
+// float freq = 0;
+
+bool playing_notes = false;
+bool playing_note = false;
+float note_frequency = 0;
+float note_length = 0;
+uint8_t note_tempo = TEMPO_DEFAULT;
+float note_timbre = TIMBRE_DEFAULT;
+uint16_t note_position = 0;
+float (* notes_pointer)[][2];
+uint16_t notes_count;
+bool notes_repeat;
+float notes_rest;
+bool note_resting = false;
+
+uint8_t current_note = 0;
+uint8_t rest_counter = 0;
+
+#ifdef VIBRATO_ENABLE
+float vibrato_counter = 0;
+float vibrato_strength = .5;
+float vibrato_rate = 0.125;
+#endif
+
+float polyphony_rate = 0;
+
+static bool audio_initialized = false;
+
+audio_config_t audio_config;
+
+uint16_t envelope_index = 0;
+
+void audio_init() {
+
+ // Check EEPROM
+ if (!eeconfig_is_enabled())
+ {
+ eeconfig_init();
+ }
+ audio_config.raw = eeconfig_read_audio();
+
+ #ifdef PWM_AUDIO
+
+ PLLFRQ = _BV(PDIV2);
+ PLLCSR = _BV(PLLE);
+ while(!(PLLCSR & _BV(PLOCK)));
+ PLLFRQ |= _BV(PLLTM0); /* PCK 48MHz */
+
+ /* Init a fast PWM on Timer4 */
+ TCCR4A = _BV(COM4A0) | _BV(PWM4A); /* Clear OC4A on Compare Match */
+ TCCR4B = _BV(CS40); /* No prescaling => f = PCK/256 = 187500Hz */
+ OCR4A = 0;
+
+ /* Enable the OC4A output */
+ DDRC |= _BV(PORTC6);
+
+ DISABLE_AUDIO_COUNTER_3_ISR; // Turn off 3A interputs
+
+ TCCR3A = 0x0; // Options not needed
+ TCCR3B = _BV(CS31) | _BV(CS30) | _BV(WGM32); // 64th prescaling and CTC
+ OCR3A = SAMPLE_DIVIDER - 1; // Correct count/compare, related to sample playback
+
+ #else
+
+ // Set port PC6 (OC3A and /OC4A) as output
+ DDRC |= _BV(PORTC6);
+
+ DISABLE_AUDIO_COUNTER_3_ISR;
+
+ // TCCR3A / TCCR3B: Timer/Counter #3 Control Registers
+ // Compare Output Mode (COM3An) = 0b00 = Normal port operation, OC3A disconnected from PC6
+ // Waveform Generation Mode (WGM3n) = 0b1110 = Fast PWM Mode 14 (Period = ICR3, Duty Cycle = OCR3A)
+ // Clock Select (CS3n) = 0b010 = Clock / 8
+ TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
+ TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
+
+ #endif
+
+ audio_initialized = true;
+}
+
+void stop_all_notes() {
+ if (!audio_initialized) {
+ audio_init();
+ }
+ voices = 0;
+ #ifdef PWM_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ #else
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ DISABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+
+ playing_notes = false;
+ playing_note = false;
+ frequency = 0;
+ volume = 0;
+
+ for (uint8_t i = 0; i < 8; i++)
+ {
+ frequencies[i] = 0;
+ volumes[i] = 0;
+ }
+}
+
+void stop_note(float freq)
+{
+ if (playing_note) {
+ if (!audio_initialized) {
+ audio_init();
+ }
+ #ifdef PWM_AUDIO
+ freq = freq / SAMPLE_RATE;
+ #endif
+ for (int i = 7; i >= 0; i--) {
+ if (frequencies[i] == freq) {
+ frequencies[i] = 0;
+ volumes[i] = 0;
+ for (int j = i; (j < 7); j++) {
+ frequencies[j] = frequencies[j+1];
+ frequencies[j+1] = 0;
+ volumes[j] = volumes[j+1];
+ volumes[j+1] = 0;
+ }
+ break;
+ }
+ }
+ voices--;
+ if (voices < 0)
+ voices = 0;
+ if (voice_place >= voices) {
+ voice_place = 0;
+ }
+ if (voices == 0) {
+ #ifdef PWM_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ #else
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ DISABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ frequency = 0;
+ volume = 0;
+ playing_note = false;
+ }
+ }
+}
+
+#ifdef VIBRATO_ENABLE
+
+float mod(float a, int b)
+{
+ float r = fmod(a, b);
+ return r < 0 ? r + b : r;
+}
+
+float vibrato(float average_freq) {
+ #ifdef VIBRATO_STRENGTH_ENABLE
+ float vibrated_freq = average_freq * pow(vibrato_lut[(int)vibrato_counter], vibrato_strength);
+ #else
+ float vibrated_freq = average_freq * vibrato_lut[(int)vibrato_counter];
+ #endif
+ vibrato_counter = mod((vibrato_counter + vibrato_rate * (1.0 + 440.0/average_freq)), VIBRATO_LUT_LENGTH);
+ return vibrated_freq;
+}
+
+#endif
+
+ISR(TIMER3_COMPA_vect)
+{
+ if (playing_note) {
+ #ifdef PWM_AUDIO
+ if (voices == 1) {
+ // SINE
+ OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]) >> 2;
+
+ // SQUARE
+ // if (((int)place) >= 1024){
+ // OCR4A = 0xFF >> 2;
+ // } else {
+ // OCR4A = 0x00;
+ // }
+
+ // SAWTOOTH
+ // OCR4A = (int)place / 4;
+
+ // TRIANGLE
+ // if (((int)place) >= 1024) {
+ // OCR4A = (int)place / 2;
+ // } else {
+ // OCR4A = 2048 - (int)place / 2;
+ // }
+
+ place += frequency;
+
+ if (place >= SINE_LENGTH)
+ place -= SINE_LENGTH;
+
+ } else {
+ int sum = 0;
+ for (int i = 0; i < voices; i++) {
+ // SINE
+ sum += pgm_read_byte(&sinewave[(uint16_t)places[i]]) >> 2;
+
+ // SQUARE
+ // if (((int)places[i]) >= 1024){
+ // sum += 0xFF >> 2;
+ // } else {
+ // sum += 0x00;
+ // }
+
+ places[i] += frequencies[i];
+
+ if (places[i] >= SINE_LENGTH)
+ places[i] -= SINE_LENGTH;
+ }
+ OCR4A = sum;
+ }
+ #else
+ if (voices > 0) {
+ float freq;
+ if (polyphony_rate > 0) {
+ if (voices > 1) {
+ voice_place %= voices;
+ if (place++ > (frequencies[voice_place] / polyphony_rate / CPU_PRESCALER)) {
+ voice_place = (voice_place + 1) % voices;
+ place = 0.0;
+ }
+ }
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequencies[voice_place]);
+ } else {
+ #else
+ {
+ #endif
+ freq = frequencies[voice_place];
+ }
+ } else {
+ if (frequency != 0 && frequency < frequencies[voices - 1] && frequency < frequencies[voices - 1] * pow(2, -440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, 440/frequency/12/2);
+ } else if (frequency != 0 && frequency > frequencies[voices - 1] && frequency > frequencies[voices - 1] * pow(2, 440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, -440/frequency/12/2);
+ } else {
+ frequency = frequencies[voices - 1];
+ }
+
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequency);
+ } else {
+ #else
+ {
+ #endif
+ freq = frequency;
+ }
+ }
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+ freq = voice_envelope(freq);
+
+ if (freq < 30.517578125)
+ freq = 30.52;
+ NOTE_PERIOD = (int)(((double)F_CPU) / (freq * CPU_PRESCALER)); // Set max to the period
+ NOTE_DUTY_CYCLE = (int)((((double)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre); // Set compare to half the period
+ }
+ #endif
+ }
+
+ // SAMPLE
+ // OCR4A = pgm_read_byte(&sample[(uint16_t)place_int]);
+
+ // place_int++;
+
+ // if (place_int >= sample_length)
+ // if (repeat)
+ // place_int -= sample_length;
+ // else
+ // DISABLE_AUDIO_COUNTER_3_ISR;
+
+
+ if (playing_notes) {
+ #ifdef PWM_AUDIO
+ OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]) >> 0;
+
+ place += note_frequency;
+ if (place >= SINE_LENGTH)
+ place -= SINE_LENGTH;
+ #else
+ if (note_frequency > 0) {
+ float freq;
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(note_frequency);
+ } else {
+ #else
+ {
+ #endif
+ freq = note_frequency;
+ }
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+ freq = voice_envelope(freq);
+
+ NOTE_PERIOD = (int)(((double)F_CPU) / (freq * CPU_PRESCALER)); // Set max to the period
+ NOTE_DUTY_CYCLE = (int)((((double)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre); // Set compare to half the period
+ } else {
+ NOTE_PERIOD = 0;
+ NOTE_DUTY_CYCLE = 0;
+ }
+ #endif
+
+
+ note_position++;
+ bool end_of_note = false;
+ if (NOTE_PERIOD > 0)
+ end_of_note = (note_position >= (note_length / NOTE_PERIOD * 0xFFFF));
+ else
+ end_of_note = (note_position >= (note_length * 0x7FF));
+ if (end_of_note) {
+ current_note++;
+ if (current_note >= notes_count) {
+ if (notes_repeat) {
+ current_note = 0;
+ } else {
+ #ifdef PWM_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ #else
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ DISABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ playing_notes = false;
+ return;
+ }
+ }
+ if (!note_resting && (notes_rest > 0)) {
+ note_resting = true;
+ note_frequency = 0;
+ note_length = notes_rest;
+ current_note--;
+ } else {
+ note_resting = false;
+ #ifdef PWM_AUDIO
+ note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE;
+ note_length = (*notes_pointer)[current_note][1] * (((float)note_tempo) / 100);
+ #else
+ envelope_index = 0;
+ note_frequency = (*notes_pointer)[current_note][0];
+ note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
+ #endif
+ }
+ note_position = 0;
+ }
+
+ }
+
+ if (!audio_config.enable) {
+ playing_notes = false;
+ playing_note = false;
+ }
+}
+
+void play_note(float freq, int vol) {
+
+ if (!audio_initialized) {
+ audio_init();
+ }
+
+ if (audio_config.enable && voices < 8) {
+ DISABLE_AUDIO_COUNTER_3_ISR;
+
+ // Cancel notes if notes are playing
+ if (playing_notes)
+ stop_all_notes();
+
+ playing_note = true;
+
+ envelope_index = 0;
+
+ #ifdef PWM_AUDIO
+ freq = freq / SAMPLE_RATE;
+ #endif
+ if (freq > 0) {
+ frequencies[voices] = freq;
+ volumes[voices] = vol;
+ voices++;
+ }
+
+ #ifdef PWM_AUDIO
+ ENABLE_AUDIO_COUNTER_3_ISR;
+ #else
+ ENABLE_AUDIO_COUNTER_3_ISR;
+ ENABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ }
+
+}
+
+void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest)
+{
+
+ if (!audio_initialized) {
+ audio_init();
+ }
+
+ if (audio_config.enable) {
+
+ DISABLE_AUDIO_COUNTER_3_ISR;
+
+ // Cancel note if a note is playing
+ if (playing_note)
+ stop_all_notes();
+
+ playing_notes = true;
+
+ notes_pointer = np;
+ notes_count = n_count;
+ notes_repeat = n_repeat;
+ notes_rest = n_rest;
+
+ place = 0;
+ current_note = 0;
+
+ #ifdef PWM_AUDIO
+ note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE;
+ note_length = (*notes_pointer)[current_note][1] * (((float)note_tempo) / 100);
+ #else
+ note_frequency = (*notes_pointer)[current_note][0];
+ note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
+ #endif
+ note_position = 0;
+
+
+ #ifdef PWM_AUDIO
+ ENABLE_AUDIO_COUNTER_3_ISR;
+ #else
+ ENABLE_AUDIO_COUNTER_3_ISR;
+ ENABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ }
+
+}
+
+#ifdef PWM_AUDIO
+void play_sample(uint8_t * s, uint16_t l, bool r) {
+ if (!audio_initialized) {
+ audio_init();
+ }
+
+ if (audio_config.enable) {
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ stop_all_notes();
+ place_int = 0;
+ sample = s;
+ sample_length = l;
+ repeat = r;
+
+ ENABLE_AUDIO_COUNTER_3_ISR;
+ }
+}
+#endif
+
+
+void audio_toggle(void) {
+ audio_config.enable ^= 1;
+ eeconfig_update_audio(audio_config.raw);
+}
+
+void audio_on(void) {
+ audio_config.enable = 1;
+ eeconfig_update_audio(audio_config.raw);
+}
+
+void audio_off(void) {
+ audio_config.enable = 0;
+ eeconfig_update_audio(audio_config.raw);
+}
+
+#ifdef VIBRATO_ENABLE
+
+// Vibrato rate functions
+
+void set_vibrato_rate(float rate) {
+ vibrato_rate = rate;
+}
+
+void increase_vibrato_rate(float change) {
+ vibrato_rate *= change;
+}
+
+void decrease_vibrato_rate(float change) {
+ vibrato_rate /= change;
+}
+
+#ifdef VIBRATO_STRENGTH_ENABLE
+
+void set_vibrato_strength(float strength) {
+ vibrato_strength = strength;
+}
+
+void increase_vibrato_strength(float change) {
+ vibrato_strength *= change;
+}
+
+void decrease_vibrato_strength(float change) {
+ vibrato_strength /= change;
+}
+
+#endif /* VIBRATO_STRENGTH_ENABLE */
+
+#endif /* VIBRATO_ENABLE */
+
+// Polyphony functions
+
+void set_polyphony_rate(float rate) {
+ polyphony_rate = rate;
+}
+
+void enable_polyphony() {
+ polyphony_rate = 5;
+}
+
+void disable_polyphony() {
+ polyphony_rate = 0;
+}
+
+void increase_polyphony_rate(float change) {
+ polyphony_rate *= change;
+}
+
+void decrease_polyphony_rate(float change) {
+ polyphony_rate /= change;
+}
+
+// Timbre function
+
+void set_timbre(float timbre) {
+ note_timbre = timbre;
+}
+
+// Tempo functions
+
+void set_tempo(uint8_t tempo) {
+ note_tempo = tempo;
+}
+
+void decrease_tempo(uint8_t tempo_change) {
+ note_tempo += tempo_change;
+}
+
+void increase_tempo(uint8_t tempo_change) {
+ if (note_tempo - tempo_change < 10) {
+ note_tempo = 10;
+ } else {
+ note_tempo -= tempo_change;
+ }
+}
+
+
+//------------------------------------------------------------------------------
+// Override these functions in your keymap file to play different tunes on
+// startup and bootloader jump
+__attribute__ ((weak))
+void play_startup_tone()
+{
+}
+
+__attribute__ ((weak))
+void play_goodbye_tone()
+{
+}
+//------------------------------------------------------------------------------
diff --git a/quantum/audio/luts.c b/quantum/audio/luts.c
new file mode 100644
index 000000000..57f2d5924
--- /dev/null
+++ b/quantum/audio/luts.c
@@ -0,0 +1,398 @@
+/* Copyright 2016 IBNobody
+ *
+ * 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 <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+#include "luts.h"
+
+const float vibrato_lut[VIBRATO_LUT_LENGTH] =
+{
+ 1.0022336811487,
+ 1.0042529943610,
+ 1.0058584256028,
+ 1.0068905285205,
+ 1.0072464122237,
+ 1.0068905285205,
+ 1.0058584256028,
+ 1.0042529943610,
+ 1.0022336811487,
+ 1.0000000000000,
+ 0.9977712970630,
+ 0.9957650169978,
+ 0.9941756956510,
+ 0.9931566259436,
+ 0.9928057204913,
+ 0.9931566259436,
+ 0.9941756956510,
+ 0.9957650169978,
+ 0.9977712970630,
+ 1.0000000000000,
+};
+
+const uint16_t frequency_lut[FREQUENCY_LUT_LENGTH] =
+{
+ 0x8E0B,
+ 0x8C02,
+ 0x8A00,
+ 0x8805,
+ 0x8612,
+ 0x8426,
+ 0x8241,
+ 0x8063,
+ 0x7E8C,
+ 0x7CBB,
+ 0x7AF2,
+ 0x792E,
+ 0x7772,
+ 0x75BB,
+ 0x740B,
+ 0x7261,
+ 0x70BD,
+ 0x6F20,
+ 0x6D88,
+ 0x6BF6,
+ 0x6A69,
+ 0x68E3,
+ 0x6762,
+ 0x65E6,
+ 0x6470,
+ 0x6300,
+ 0x6194,
+ 0x602E,
+ 0x5ECD,
+ 0x5D71,
+ 0x5C1A,
+ 0x5AC8,
+ 0x597B,
+ 0x5833,
+ 0x56EF,
+ 0x55B0,
+ 0x5475,
+ 0x533F,
+ 0x520E,
+ 0x50E1,
+ 0x4FB8,
+ 0x4E93,
+ 0x4D73,
+ 0x4C57,
+ 0x4B3E,
+ 0x4A2A,
+ 0x491A,
+ 0x480E,
+ 0x4705,
+ 0x4601,
+ 0x4500,
+ 0x4402,
+ 0x4309,
+ 0x4213,
+ 0x4120,
+ 0x4031,
+ 0x3F46,
+ 0x3E5D,
+ 0x3D79,
+ 0x3C97,
+ 0x3BB9,
+ 0x3ADD,
+ 0x3A05,
+ 0x3930,
+ 0x385E,
+ 0x3790,
+ 0x36C4,
+ 0x35FB,
+ 0x3534,
+ 0x3471,
+ 0x33B1,
+ 0x32F3,
+ 0x3238,
+ 0x3180,
+ 0x30CA,
+ 0x3017,
+ 0x2F66,
+ 0x2EB8,
+ 0x2E0D,
+ 0x2D64,
+ 0x2CBD,
+ 0x2C19,
+ 0x2B77,
+ 0x2AD8,
+ 0x2A3A,
+ 0x299F,
+ 0x2907,
+ 0x2870,
+ 0x27DC,
+ 0x2749,
+ 0x26B9,
+ 0x262B,
+ 0x259F,
+ 0x2515,
+ 0x248D,
+ 0x2407,
+ 0x2382,
+ 0x2300,
+ 0x2280,
+ 0x2201,
+ 0x2184,
+ 0x2109,
+ 0x2090,
+ 0x2018,
+ 0x1FA3,
+ 0x1F2E,
+ 0x1EBC,
+ 0x1E4B,
+ 0x1DDC,
+ 0x1D6E,
+ 0x1D02,
+ 0x1C98,
+ 0x1C2F,
+ 0x1BC8,
+ 0x1B62,
+ 0x1AFD,
+ 0x1A9A,
+ 0x1A38,
+ 0x19D8,
+ 0x1979,
+ 0x191C,
+ 0x18C0,
+ 0x1865,
+ 0x180B,
+ 0x17B3,
+ 0x175C,
+ 0x1706,
+ 0x16B2,
+ 0x165E,
+ 0x160C,
+ 0x15BB,
+ 0x156C,
+ 0x151D,
+ 0x14CF,
+ 0x1483,
+ 0x1438,
+ 0x13EE,
+ 0x13A4,
+ 0x135C,
+ 0x1315,
+ 0x12CF,
+ 0x128A,
+ 0x1246,
+ 0x1203,
+ 0x11C1,
+ 0x1180,
+ 0x1140,
+ 0x1100,
+ 0x10C2,
+ 0x1084,
+ 0x1048,
+ 0x100C,
+ 0xFD1,
+ 0xF97,
+ 0xF5E,
+ 0xF25,
+ 0xEEE,
+ 0xEB7,
+ 0xE81,
+ 0xE4C,
+ 0xE17,
+ 0xDE4,
+ 0xDB1,
+ 0xD7E,
+ 0xD4D,
+ 0xD1C,
+ 0xCEC,
+ 0xCBC,
+ 0xC8E,
+ 0xC60,
+ 0xC32,
+ 0xC05,
+ 0xBD9,
+ 0xBAE,
+ 0xB83,
+ 0xB59,
+ 0xB2F,
+ 0xB06,
+ 0xADD,
+ 0xAB6,
+ 0xA8E,
+ 0xA67,
+ 0xA41,
+ 0xA1C,
+ 0x9F7,
+ 0x9D2,
+ 0x9AE,
+ 0x98A,
+ 0x967,
+ 0x945,
+ 0x923,
+ 0x901,
+ 0x8E0,
+ 0x8C0,
+ 0x8A0,
+ 0x880,
+ 0x861,
+ 0x842,
+ 0x824,
+ 0x806,
+ 0x7E8,
+ 0x7CB,
+ 0x7AF,
+ 0x792,
+ 0x777,
+ 0x75B,
+ 0x740,
+ 0x726,
+ 0x70B,
+ 0x6F2,
+ 0x6D8,
+ 0x6BF,
+ 0x6A6,
+ 0x68E,
+ 0x676,
+ 0x65E,
+ 0x647,
+ 0x630,
+ 0x619,
+ 0x602,
+ 0x5EC,
+ 0x5D7,
+ 0x5C1,
+ 0x5AC,
+ 0x597,
+ 0x583,
+ 0x56E,
+ 0x55B,
+ 0x547,
+ 0x533,
+ 0x520,
+ 0x50E,
+ 0x4FB,
+ 0x4E9,
+ 0x4D7,
+ 0x4C5,
+ 0x4B3,
+ 0x4A2,
+ 0x491,
+ 0x480,
+ 0x470,
+ 0x460,
+ 0x450,
+ 0x440,
+ 0x430,
+ 0x421,
+ 0x412,
+ 0x403,
+ 0x3F4,
+ 0x3E5,
+ 0x3D7,
+ 0x3C9,
+ 0x3BB,
+ 0x3AD,
+ 0x3A0,
+ 0x393,
+ 0x385,
+ 0x379,
+ 0x36C,
+ 0x35F,
+ 0x353,
+ 0x347,
+ 0x33B,
+ 0x32F,
+ 0x323,
+ 0x318,
+ 0x30C,
+ 0x301,
+ 0x2F6,
+ 0x2EB,
+ 0x2E0,
+ 0x2D6,
+ 0x2CB,
+ 0x2C1,
+ 0x2B7,
+ 0x2AD,
+ 0x2A3,
+ 0x299,
+ 0x290,
+ 0x287,
+ 0x27D,
+ 0x274,
+ 0x26B,
+ 0x262,
+ 0x259,
+ 0x251,
+ 0x248,
+ 0x240,
+ 0x238,
+ 0x230,
+ 0x228,
+ 0x220,
+ 0x218,
+ 0x210,
+ 0x209,
+ 0x201,
+ 0x1FA,
+ 0x1F2,
+ 0x1EB,
+ 0x1E4,
+ 0x1DD,
+ 0x1D6,
+ 0x1D0,
+ 0x1C9,
+ 0x1C2,
+ 0x1BC,
+ 0x1B6,
+ 0x1AF,
+ 0x1A9,
+ 0x1A3,
+ 0x19D,
+ 0x197,
+ 0x191,
+ 0x18C,
+ 0x186,
+ 0x180,
+ 0x17B,
+ 0x175,
+ 0x170,
+ 0x16B,
+ 0x165,
+ 0x160,
+ 0x15B,
+ 0x156,
+ 0x151,
+ 0x14C,
+ 0x148,
+ 0x143,
+ 0x13E,
+ 0x13A,
+ 0x135,
+ 0x131,
+ 0x12C,
+ 0x128,
+ 0x124,
+ 0x120,
+ 0x11C,
+ 0x118,
+ 0x114,
+ 0x110,
+ 0x10C,
+ 0x108,
+ 0x104,
+ 0x100,
+ 0xFD,
+ 0xF9,
+ 0xF5,
+ 0xF2,
+ 0xEE,
+};
+
diff --git a/quantum/audio/luts.h b/quantum/audio/luts.h
new file mode 100644
index 000000000..155e34e88
--- /dev/null
+++ b/quantum/audio/luts.h
@@ -0,0 +1,31 @@
+/* Copyright 2016 IBNobody
+ *
+ * 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 <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+
+#ifndef LUTS_H
+#define LUTS_H
+
+#define VIBRATO_LUT_LENGTH 20
+
+#define FREQUENCY_LUT_LENGTH 349
+
+extern const float vibrato_lut[VIBRATO_LUT_LENGTH];
+extern const uint16_t frequency_lut[FREQUENCY_LUT_LENGTH];
+
+#endif /* LUTS_H */
diff --git a/quantum/audio/musical_notes.h b/quantum/audio/musical_notes.h
new file mode 100644
index 000000000..a3aaa2f19
--- /dev/null
+++ b/quantum/audio/musical_notes.h
@@ -0,0 +1,233 @@
+/* Copyright 2016 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/>.
+ */
+
+#ifndef MUSICAL_NOTES_H
+#define MUSICAL_NOTES_H
+
+// Tempo Placeholder
+#define TEMPO_DEFAULT 100
+
+
+#define SONG(notes...) { notes }
+
+
+// Note Types
+#define MUSICAL_NOTE(note, duration) {(NOTE##note), duration}
+#define WHOLE_NOTE(note) MUSICAL_NOTE(note, 64)
+#define HALF_NOTE(note) MUSICAL_NOTE(note, 32)
+#define QUARTER_NOTE(note) MUSICAL_NOTE(note, 16)
+#define EIGHTH_NOTE(note) MUSICAL_NOTE(note, 8)
+#define SIXTEENTH_NOTE(note) MUSICAL_NOTE(note, 4)
+
+#define WHOLE_DOT_NOTE(note) MUSICAL_NOTE(note, 64+32)
+#define HALF_DOT_NOTE(note) MUSICAL_NOTE(note, 32+16)
+#define QUARTER_DOT_NOTE(note) MUSICAL_NOTE(note, 16+8)
+#define EIGHTH_DOT_NOTE(note) MUSICAL_NOTE(note, 8+4)
+#define SIXTEENTH_DOT_NOTE(note) MUSICAL_NOTE(note, 4+2)
+
+// Note Type Shortcuts
+#define M__NOTE(note, duration) MUSICAL_NOTE(note, duration)
+#define W__NOTE(n) WHOLE_NOTE(n)
+#define H__NOTE(n) HALF_NOTE(n)
+#define Q__NOTE(n) QUARTER_NOTE(n)
+#define E__NOTE(n) EIGHTH_NOTE(n)
+#define S__NOTE(n) SIXTEENTH_NOTE(n)
+#define WD_NOTE(n) WHOLE_DOT_NOTE(n)
+#define HD_NOTE(n) HALF_DOT_NOTE(n)
+#define QD_NOTE(n) QUARTER_DOT_NOTE(n)
+#define ED_NOTE(n) EIGHTH_DOT_NOTE(n)
+#define SD_NOTE(n) SIXTEENTH_DOT_NOTE(n)
+
+// Note Styles
+// Staccato makes sure there is a rest between each note. Think: TA TA TA
+// Legato makes notes flow together. Think: TAAA
+#define STACCATO 0.01
+#define LEGATO 0
+
+// Note Timbre
+// Changes how the notes sound
+#define TIMBRE_12 0.125
+#define TIMBRE_25 0.250
+#define TIMBRE_50 0.500
+#define TIMBRE_75 0.750
+#define TIMBRE_DEFAULT TIMBRE_50
+
+
+// Notes - # = Octave
+
+#define NOTE_REST 0.00
+
+/* These notes are currently bugged
+#define NOTE_C0 16.35
+#define NOTE_CS0 17.32
+#define NOTE_D0 18.35
+#define NOTE_DS0 19.45
+#define NOTE_E0 20.60
+#define NOTE_F0 21.83
+#define NOTE_FS0 23.12
+#define NOTE_G0 24.50
+#define NOTE_GS0 25.96
+#define NOTE_A0 27.50
+#define NOTE_AS0 29.14
+#define NOTE_B0 30.87
+#define NOTE_C1 32.70
+#define NOTE_CS1 34.65
+#define NOTE_D1 36.71
+#define NOTE_DS1 38.89
+#define NOTE_E1 41.20
+#define NOTE_F1 43.65
+#define NOTE_FS1 46.25
+#define NOTE_G1 49.00
+#define NOTE_GS1 51.91
+#define NOTE_A1 55.00
+#define NOTE_AS1 58.27
+*/
+
+#define NOTE_B1 61.74
+#define NOTE_C2 65.41
+#define NOTE_CS2 69.30
+#define NOTE_D2 73.42
+#define NOTE_DS2 77.78
+#define NOTE_E2 82.41
+#define NOTE_F2 87.31
+#define NOTE_FS2 92.50
+#define NOTE_G2 98.00
+#define NOTE_GS2 103.83
+#define NOTE_A2 110.00
+#define NOTE_AS2 116.54
+#define NOTE_B2 123.47
+#define NOTE_C3 130.81
+#define NOTE_CS3 138.59
+#define NOTE_D3 146.83
+#define NOTE_DS3 155.56
+#define NOTE_E3 164.81
+#define NOTE_F3 174.61
+#define NOTE_FS3 185.00
+#define NOTE_G3 196.00
+#define NOTE_GS3 207.65
+#define NOTE_A3 220.00
+#define NOTE_AS3 233.08
+#define NOTE_B3 246.94
+#define NOTE_C4 261.63
+#define NOTE_CS4 277.18
+#define NOTE_D4 293.66
+#define NOTE_DS4 311.13
+#define NOTE_E4 329.63
+#define NOTE_F4 349.23
+#define NOTE_FS4 369.99
+#define NOTE_G4 392.00
+#define NOTE_GS4 415.30
+#define NOTE_A4 440.00
+#define NOTE_AS4 466.16
+#define NOTE_B4 493.88
+#define NOTE_C5 523.25
+#define NOTE_CS5 554.37
+#define NOTE_D5 587.33
+#define NOTE_DS5 622.25
+#define NOTE_E5 659.26
+#define NOTE_F5 698.46
+#define NOTE_FS5 739.99
+#define NOTE_G5 783.99
+#define NOTE_GS5 830.61
+#define NOTE_A5 880.00
+#define NOTE_AS5 932.33
+#define NOTE_B5 987.77
+#define NOTE_C6 1046.50
+#define NOTE_CS6 1108.73
+#define NOTE_D6 1174.66
+#define NOTE_DS6 1244.51
+#define NOTE_E6 1318.51
+#define NOTE_F6 1396.91
+#define NOTE_FS6 1479.98
+#define NOTE_G6 1567.98
+#define NOTE_GS6 1661.22
+#define NOTE_A6 1760.00
+#define NOTE_AS6 1864.66
+#define NOTE_B6 1975.53
+#define NOTE_C7 2093.00
+#define NOTE_CS7 2217.46
+#define NOTE_D7 2349.32
+#define NOTE_DS7 2489.02
+#define NOTE_E7 2637.02
+#define NOTE_F7 2793.83
+#define NOTE_FS7 2959.96
+#define NOTE_G7 3135.96
+#define NOTE_GS7 3322.44
+#define NOTE_A7 3520.00
+#define NOTE_AS7 3729.31
+#define NOTE_B7 3951.07
+#define NOTE_C8 4186.01
+#define NOTE_CS8 4434.92
+#define NOTE_D8 4698.64
+#define NOTE_DS8 4978.03
+#define NOTE_E8 5274.04
+#define NOTE_F8 5587.65
+#define NOTE_FS8 5919.91
+#define NOTE_G8 6271.93
+#define NOTE_GS8 6644.88
+#define NOTE_A8 7040.00
+#define NOTE_AS8 7458.62
+#define NOTE_B8 7902.13
+
+// Flat Aliases
+#define NOTE_DF0 NOTE_CS0
+#define NOTE_EF0 NOTE_DS0
+#define NOTE_GF0 NOTE_FS0
+#define NOTE_AF0 NOTE_GS0
+#define NOTE_BF0 NOTE_AS0
+#define NOTE_DF1 NOTE_CS1
+#define NOTE_EF1 NOTE_DS1
+#define NOTE_GF1 NOTE_FS1
+#define NOTE_AF1 NOTE_GS1
+#define NOTE_BF1 NOTE_AS1
+#define NOTE_DF2 NOTE_CS2
+#define NOTE_EF2 NOTE_DS2
+#define NOTE_GF2 NOTE_FS2
+#define NOTE_AF2 NOTE_GS2
+#define NOTE_BF2 NOTE_AS2
+#define NOTE_DF3 NOTE_CS3
+#define NOTE_EF3 NOTE_DS3
+#define NOTE_GF3 NOTE_FS3
+#define NOTE_AF3 NOTE_GS3
+#define NOTE_BF3 NOTE_AS3
+#define NOTE_DF4 NOTE_CS4
+#define NOTE_EF4 NOTE_DS4
+#define NOTE_GF4 NOTE_FS4
+#define NOTE_AF4 NOTE_GS4
+#define NOTE_BF4 NOTE_AS4
+#define NOTE_DF5 NOTE_CS5
+#define NOTE_EF5 NOTE_DS5
+#define NOTE_GF5 NOTE_FS5
+#define NOTE_AF5 NOTE_GS5
+#define NOTE_BF5 NOTE_AS5
+#define NOTE_DF6 NOTE_CS6
+#define NOTE_EF6 NOTE_DS6
+#define NOTE_GF6 NOTE_FS6
+#define NOTE_AF6 NOTE_GS6
+#define NOTE_BF6 NOTE_AS6
+#define NOTE_DF7 NOTE_CS7
+#define NOTE_EF7 NOTE_DS7
+#define NOTE_GF7 NOTE_FS7
+#define NOTE_AF7 NOTE_GS7
+#define NOTE_BF7 NOTE_AS7
+#define NOTE_DF8 NOTE_CS8
+#define NOTE_EF8 NOTE_DS8
+#define NOTE_GF8 NOTE_FS8
+#define NOTE_AF8 NOTE_GS8
+#define NOTE_BF8 NOTE_AS8
+
+
+#endif
diff --git a/quantum/audio/song_list.h b/quantum/audio/song_list.h
new file mode 100644
index 000000000..db2d1a94c
--- /dev/null
+++ b/quantum/audio/song_list.h
@@ -0,0 +1,179 @@
+/* Copyright 2016 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 "musical_notes.h"
+
+#ifndef SONG_LIST_H
+#define SONG_LIST_H
+
+#define COIN_SOUND \
+ E__NOTE(_A5 ),\
+ HD_NOTE(_E6 ),
+
+#define ODE_TO_JOY \
+ Q__NOTE(_E4), Q__NOTE(_E4), Q__NOTE(_F4), Q__NOTE(_G4), \
+ Q__NOTE(_G4), Q__NOTE(_F4), Q__NOTE(_E4), Q__NOTE(_D4), \
+ Q__NOTE(_C4), Q__NOTE(_C4), Q__NOTE(_D4), Q__NOTE(_E4), \
+ QD_NOTE(_E4), E__NOTE(_D4), H__NOTE(_D4),
+
+#define ROCK_A_BYE_BABY \
+ QD_NOTE(_B4), E__NOTE(_D4), Q__NOTE(_B5), \
+ H__NOTE(_A5), Q__NOTE(_G5), \
+ QD_NOTE(_B4), E__NOTE(_D5), Q__NOTE(_G5), \
+ H__NOTE(_FS5),
+
+#define CLOSE_ENCOUNTERS_5_NOTE \
+ Q__NOTE(_D5), \
+ Q__NOTE(_E5), \
+ Q__NOTE(_C5), \
+ Q__NOTE(_C4), \
+ Q__NOTE(_G4),
+
+#define DOE_A_DEER \
+ QD_NOTE(_C4), E__NOTE(_D4), \
+ QD_NOTE(_E4), E__NOTE(_C4), \
+ Q__NOTE(_E4), Q__NOTE(_C4), \
+ Q__NOTE(_E4),
+
+/* Requires: PLAY_NOTE_ARRAY(..., ..., STACCATO); */
+#define IN_LIKE_FLINT \
+ E__NOTE(_AS4), E__NOTE(_AS4), QD_NOTE(_B4), \
+ E__NOTE(_AS4), E__NOTE(_B4), QD_NOTE(_CS4), \
+ E__NOTE(_B4), E__NOTE(_CS4), QD_NOTE(_DS4), \
+ E__NOTE(_CS4), E__NOTE(_B4), QD_NOTE(_AS4), \
+ E__NOTE(_AS4), E__NOTE(_AS4), QD_NOTE(_B4),
+
+#define GOODBYE_SOUND \
+ E__NOTE(_E7), \
+ E__NOTE(_A6), \
+ ED_NOTE(_E6),
+
+#define STARTUP_SOUND \
+ ED_NOTE(_E7 ), \
+ E__NOTE(_CS7), \
+ E__NOTE(_E6 ), \
+ E__NOTE(_A6 ), \
+ M__NOTE(_CS7, 20),
+
+#define QWERTY_SOUND \
+ E__NOTE(_GS6 ), \
+ E__NOTE(_A6 ), \
+ S__NOTE(_REST), \
+ Q__NOTE(_E7 ),
+
+#define COLEMAK_SOUND \
+ E__NOTE(_GS6 ), \
+ E__NOTE(_A6 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_E7 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_GS7 ),
+
+#define DVORAK_SOUND \
+ E__NOTE(_GS6 ), \
+ E__NOTE(_A6 ), \
+ S__NOTE(_REST), \
+ E__NOTE(_E7 ), \
+ S__NOTE(_REST), \
+ E__NOTE(_FS7 ), \
+ S__NOTE(_REST), \
+ E__NOTE(_E7 ),
+
+#define PLOVER_SOUND \
+ E__NOTE(_GS6 ), \
+ E__NOTE(_A6 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_E7 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_A7 ),
+
+#define PLOVER_GOODBYE_SOUND \
+ E__NOTE(_GS6 ), \
+ E__NOTE(_A6 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_A7 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_E7 ),
+
+#define MUSIC_SCALE_SOUND \
+ E__NOTE(_A5 ), \
+ E__NOTE(_B5 ), \
+ E__NOTE(_CS6), \
+ E__NOTE(_D6 ), \
+ E__NOTE(_E6 ), \
+ E__NOTE(_FS6), \
+ E__NOTE(_GS6), \
+ E__NOTE(_A6 ),
+
+#define CAPS_LOCK_ON_SOUND \
+ E__NOTE(_A3), \
+ E__NOTE(_B3),
+
+#define CAPS_LOCK_OFF_SOUND \
+ E__NOTE(_B3), \
+ E__NOTE(_A3),
+
+#define SCROLL_LOCK_ON_SOUND \
+ E__NOTE(_D4), \
+ E__NOTE(_E4),
+
+#define SCROLL_LOCK_OFF_SOUND \
+ E__NOTE(_E4), \
+ E__NOTE(_D4),
+
+#define NUM_LOCK_ON_SOUND \
+ E__NOTE(_D5), \
+ E__NOTE(_E5),
+
+#define NUM_LOCK_OFF_SOUND \
+ E__NOTE(_E5), \
+ E__NOTE(_D5),
+
+#define UNICODE_WINDOWS \
+ E__NOTE(_B5), \
+ S__NOTE(_E6),
+
+#define UNICODE_LINUX \
+ E__NOTE(_E6), \
+ S__NOTE(_B5),
+
+#define COIN_SOUND \
+ E__NOTE(_A5 ), \
+ HD_NOTE(_E6 ),
+
+#define ONE_UP_SOUND \
+ Q__NOTE(_E6 ), \
+ Q__NOTE(_G6 ), \
+ Q__NOTE(_E7 ), \
+ Q__NOTE(_C7 ), \
+ Q__NOTE(_D7 ), \
+ Q__NOTE(_G7 ),
+
+#define SONIC_RING \
+ E__NOTE(_E6), \
+ E__NOTE(_G6), \
+ HD_NOTE(_C7),
+
+#define ZELDA_PUZZLE \
+ Q__NOTE(_G5), \
+ Q__NOTE(_FS5), \
+ Q__NOTE(_DS5), \
+ Q__NOTE(_A4), \
+ Q__NOTE(_GS4), \
+ Q__NOTE(_E5), \
+ Q__NOTE(_GS5), \
+ HD_NOTE(_C6),
+
+#endif
diff --git a/quantum/audio/voices.c b/quantum/audio/voices.c
new file mode 100644
index 000000000..94147ccb6
--- /dev/null
+++ b/quantum/audio/voices.c
@@ -0,0 +1,296 @@
+/* Copyright 2016 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 "voices.h"
+#include "audio.h"
+#include "stdlib.h"
+
+// these are imported from audio.c
+extern uint16_t envelope_index;
+extern float note_timbre;
+extern float polyphony_rate;
+extern bool glissando;
+
+voice_type voice = default_voice;
+
+void set_voice(voice_type v) {
+ voice = v;
+}
+
+void voice_iterate() {
+ voice = (voice + 1) % number_of_voices;
+}
+
+void voice_deiterate() {
+ voice = (voice - 1 + number_of_voices) % number_of_voices;
+}
+
+float voice_envelope(float frequency) {
+ // envelope_index ranges from 0 to 0xFFFF, which is preserved at 880.0 Hz
+ __attribute__ ((unused))
+ uint16_t compensated_index = (uint16_t)((float)envelope_index * (880.0 / frequency));
+
+ switch (voice) {
+ case default_voice:
+ glissando = false;
+ note_timbre = TIMBRE_50;
+ polyphony_rate = 0;
+ break;
+
+ #ifdef AUDIO_VOICES
+
+ case something:
+ glissando = false;
+ polyphony_rate = 0;
+ switch (compensated_index) {
+ case 0 ... 9:
+ note_timbre = TIMBRE_12;
+ break;
+
+ case 10 ... 19:
+ note_timbre = TIMBRE_25;
+ break;
+
+ case 20 ... 200:
+ note_timbre = .125 + .125;
+ break;
+
+ default:
+ note_timbre = .125;
+ break;
+ }
+ break;
+
+ case drums:
+ glissando = false;
+ polyphony_rate = 0;
+ // switch (compensated_index) {
+ // case 0 ... 10:
+ // note_timbre = 0.5;
+ // break;
+ // case 11 ... 20:
+ // note_timbre = 0.5 * (21 - compensated_index) / 10;
+ // break;
+ // default:
+ // note_timbre = 0;
+ // break;
+ // }
+ // frequency = (rand() % (int)(frequency * 1.2 - frequency)) + (frequency * 0.8);
+
+ if (frequency < 80.0) {
+
+ } else if (frequency < 160.0) {
+
+ // Bass drum: 60 - 100 Hz
+ frequency = (rand() % (int)(40)) + 60;
+ switch (envelope_index) {
+ case 0 ... 10:
+ note_timbre = 0.5;
+ break;
+ case 11 ... 20:
+ note_timbre = 0.5 * (21 - envelope_index) / 10;
+ break;
+ default:
+ note_timbre = 0;
+ break;
+ }
+
+ } else if (frequency < 320.0) {
+
+
+ // Snare drum: 1 - 2 KHz
+ frequency = (rand() % (int)(1000)) + 1000;
+ switch (envelope_index) {
+ case 0 ... 5:
+ note_timbre = 0.5;
+ break;
+ case 6 ... 20:
+ note_timbre = 0.5 * (21 - envelope_index) / 15;
+ break;
+ default:
+ note_timbre = 0;
+ break;
+ }
+
+ } else if (frequency < 640.0) {
+
+ // Closed Hi-hat: 3 - 5 KHz
+ frequency = (rand() % (int)(2000)) + 3000;
+ switch (envelope_index) {
+ case 0 ... 15:
+ note_timbre = 0.5;
+ break;
+ case 16 ... 20:
+ note_timbre = 0.5 * (21 - envelope_index) / 5;
+ break;
+ default:
+ note_timbre = 0;
+ break;
+ }
+
+ } else if (frequency < 1280.0) {
+
+ // Open Hi-hat: 3 - 5 KHz
+ frequency = (rand() % (int)(2000)) + 3000;
+ switch (envelope_index) {
+ case 0 ... 35:
+ note_timbre = 0.5;
+ break;
+ case 36 ... 50:
+ note_timbre = 0.5 * (51 - envelope_index) / 15;
+ break;
+ default:
+ note_timbre = 0;
+ break;
+ }
+
+ }
+ break;
+ case butts_fader:
+ glissando = true;
+ polyphony_rate = 0;
+ switch (compensated_index) {
+ case 0 ... 9:
+ frequency = frequency / 4;
+ note_timbre = TIMBRE_12;
+ break;
+
+ case 10 ... 19:
+ frequency = frequency / 2;
+ note_timbre = TIMBRE_12;
+ break;
+
+ case 20 ... 200:
+ note_timbre = .125 - pow(((float)compensated_index - 20) / (200 - 20), 2)*.125;
+ break;
+
+ default:
+ note_timbre = 0;
+ break;
+ }
+ break;
+
+ // case octave_crunch:
+ // polyphony_rate = 0;
+ // switch (compensated_index) {
+ // case 0 ... 9:
+ // case 20 ... 24:
+ // case 30 ... 32:
+ // frequency = frequency / 2;
+ // note_timbre = TIMBRE_12;
+ // break;
+
+ // case 10 ... 19:
+ // case 25 ... 29:
+ // case 33 ... 35:
+ // frequency = frequency * 2;
+ // note_timbre = TIMBRE_12;
+ // break;
+
+ // default:
+ // note_timbre = TIMBRE_12;
+ // break;
+ // }
+ // break;
+
+ case duty_osc:
+ // This slows the loop down a substantial amount, so higher notes may freeze
+ glissando = true;
+ polyphony_rate = 0;
+ switch (compensated_index) {
+ default:
+ #define OCS_SPEED 10
+ #define OCS_AMP .25
+ // sine wave is slow
+ // note_timbre = (sin((float)compensated_index/10000*OCS_SPEED) * OCS_AMP / 2) + .5;
+ // triangle wave is a bit faster
+ note_timbre = (float)abs((compensated_index*OCS_SPEED % 3000) - 1500) * ( OCS_AMP / 1500 ) + (1 - OCS_AMP) / 2;
+ break;
+ }
+ break;
+
+ case duty_octave_down:
+ glissando = true;
+ polyphony_rate = 0;
+ note_timbre = (envelope_index % 2) * .125 + .375 * 2;
+ if ((envelope_index % 4) == 0)
+ note_timbre = 0.5;
+ if ((envelope_index % 8) == 0)
+ note_timbre = 0;
+ break;
+ case delayed_vibrato:
+ glissando = true;
+ polyphony_rate = 0;
+ note_timbre = TIMBRE_50;
+ #define VOICE_VIBRATO_DELAY 150
+ #define VOICE_VIBRATO_SPEED 50
+ switch (compensated_index) {
+ case 0 ... VOICE_VIBRATO_DELAY:
+ break;
+ default:
+ frequency = frequency * vibrato_lut[(int)fmod((((float)compensated_index - (VOICE_VIBRATO_DELAY + 1))/1000*VOICE_VIBRATO_SPEED), VIBRATO_LUT_LENGTH)];
+ break;
+ }
+ break;
+ // case delayed_vibrato_octave:
+ // polyphony_rate = 0;
+ // if ((envelope_index % 2) == 1) {
+ // note_timbre = 0.55;
+ // } else {
+ // note_timbre = 0.45;
+ // }
+ // #define VOICE_VIBRATO_DELAY 150
+ // #define VOICE_VIBRATO_SPEED 50
+ // switch (compensated_index) {
+ // case 0 ... VOICE_VIBRATO_DELAY:
+ // break;
+ // default:
+ // frequency = frequency * VIBRATO_LUT[(int)fmod((((float)compensated_index - (VOICE_VIBRATO_DELAY + 1))/1000*VOICE_VIBRATO_SPEED), VIBRATO_LUT_LENGTH)];
+ // break;
+ // }
+ // break;
+ // case duty_fifth_down:
+ // note_timbre = 0.5;
+ // if ((envelope_index % 3) == 0)
+ // note_timbre = 0.75;
+ // break;
+ // case duty_fourth_down:
+ // note_timbre = 0.0;
+ // if ((envelope_index % 12) == 0)
+ // note_timbre = 0.75;
+ // if (((envelope_index % 12) % 4) != 1)
+ // note_timbre = 0.75;
+ // break;
+ // case duty_third_down:
+ // note_timbre = 0.5;
+ // if ((envelope_index % 5) == 0)
+ // note_timbre = 0.75;
+ // break;
+ // case duty_fifth_third_down:
+ // note_timbre = 0.5;
+ // if ((envelope_index % 5) == 0)
+ // note_timbre = 0.75;
+ // if ((envelope_index % 3) == 0)
+ // note_timbre = 0.25;
+ // break;
+
+ #endif
+
+ default:
+ break;
+ }
+
+ return frequency;
+}
diff --git a/quantum/audio/voices.h b/quantum/audio/voices.h
new file mode 100644
index 000000000..9403a6b5e
--- /dev/null
+++ b/quantum/audio/voices.h
@@ -0,0 +1,50 @@
+/* Copyright 2016 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 <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "luts.h"
+
+#ifndef VOICES_H
+#define VOICES_H
+
+float voice_envelope(float frequency);
+
+typedef enum {
+ default_voice,
+ #ifdef AUDIO_VOICES
+ something,
+ drums,
+ butts_fader,
+ octave_crunch,
+ duty_osc,
+ duty_octave_down,
+ delayed_vibrato,
+ // delayed_vibrato_octave,
+ // duty_fifth_down,
+ // duty_fourth_down,
+ // duty_third_down,
+ // duty_fifth_third_down,
+ #endif
+ number_of_voices // important that this is last
+} voice_type;
+
+void set_voice(voice_type v);
+void voice_iterate(void);
+void voice_deiterate(void);
+
+#endif
diff --git a/quantum/audio/wave.h b/quantum/audio/wave.h
new file mode 100644
index 000000000..f15615dd1
--- /dev/null
+++ b/quantum/audio/wave.h
@@ -0,0 +1,281 @@
+/* Copyright 2016 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 <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+
+#define SINE_LENGTH 2048
+
+const uint8_t sinewave[] PROGMEM= //2048 values
+{
+0x80,0x80,0x80,0x81,0x81,0x81,0x82,0x82,
+0x83,0x83,0x83,0x84,0x84,0x85,0x85,0x85,
+0x86,0x86,0x87,0x87,0x87,0x88,0x88,0x88,
+0x89,0x89,0x8a,0x8a,0x8a,0x8b,0x8b,0x8c,
+0x8c,0x8c,0x8d,0x8d,0x8e,0x8e,0x8e,0x8f,
+0x8f,0x8f,0x90,0x90,0x91,0x91,0x91,0x92,
+0x92,0x93,0x93,0x93,0x94,0x94,0x95,0x95,
+0x95,0x96,0x96,0x96,0x97,0x97,0x98,0x98,
+0x98,0x99,0x99,0x9a,0x9a,0x9a,0x9b,0x9b,
+0x9b,0x9c,0x9c,0x9d,0x9d,0x9d,0x9e,0x9e,
+0x9e,0x9f,0x9f,0xa0,0xa0,0xa0,0xa1,0xa1,
+0xa2,0xa2,0xa2,0xa3,0xa3,0xa3,0xa4,0xa4,
+0xa5,0xa5,0xa5,0xa6,0xa6,0xa6,0xa7,0xa7,
+0xa7,0xa8,0xa8,0xa9,0xa9,0xa9,0xaa,0xaa,
+0xaa,0xab,0xab,0xac,0xac,0xac,0xad,0xad,
+0xad,0xae,0xae,0xae,0xaf,0xaf,0xb0,0xb0,
+0xb0,0xb1,0xb1,0xb1,0xb2,0xb2,0xb2,0xb3,
+0xb3,0xb4,0xb4,0xb4,0xb5,0xb5,0xb5,0xb6,
+0xb6,0xb6,0xb7,0xb7,0xb7,0xb8,0xb8,0xb8,
+0xb9,0xb9,0xba,0xba,0xba,0xbb,0xbb,0xbb,
+0xbc,0xbc,0xbc,0xbd,0xbd,0xbd,0xbe,0xbe,
+0xbe,0xbf,0xbf,0xbf,0xc0,0xc0,0xc0,0xc1,
+0xc1,0xc1,0xc2,0xc2,0xc2,0xc3,0xc3,0xc3,
+0xc4,0xc4,0xc4,0xc5,0xc5,0xc5,0xc6,0xc6,
+0xc6,0xc7,0xc7,0xc7,0xc8,0xc8,0xc8,0xc9,
+0xc9,0xc9,0xca,0xca,0xca,0xcb,0xcb,0xcb,
+0xcb,0xcc,0xcc,0xcc,0xcd,0xcd,0xcd,0xce,
+0xce,0xce,0xcf,0xcf,0xcf,0xcf,0xd0,0xd0,
+0xd0,0xd1,0xd1,0xd1,0xd2,0xd2,0xd2,0xd2,
+0xd3,0xd3,0xd3,0xd4,0xd4,0xd4,0xd5,0xd5,
+0xd5,0xd5,0xd6,0xd6,0xd6,0xd7,0xd7,0xd7,
+0xd7,0xd8,0xd8,0xd8,0xd9,0xd9,0xd9,0xd9,
+0xda,0xda,0xda,0xda,0xdb,0xdb,0xdb,0xdc,
+0xdc,0xdc,0xdc,0xdd,0xdd,0xdd,0xdd,0xde,
+0xde,0xde,0xde,0xdf,0xdf,0xdf,0xe0,0xe0,
+0xe0,0xe0,0xe1,0xe1,0xe1,0xe1,0xe2,0xe2,
+0xe2,0xe2,0xe3,0xe3,0xe3,0xe3,0xe4,0xe4,
+0xe4,0xe4,0xe4,0xe5,0xe5,0xe5,0xe5,0xe6,
+0xe6,0xe6,0xe6,0xe7,0xe7,0xe7,0xe7,0xe8,
+0xe8,0xe8,0xe8,0xe8,0xe9,0xe9,0xe9,0xe9,
+0xea,0xea,0xea,0xea,0xea,0xeb,0xeb,0xeb,
+0xeb,0xeb,0xec,0xec,0xec,0xec,0xec,0xed,
+0xed,0xed,0xed,0xed,0xee,0xee,0xee,0xee,
+0xee,0xef,0xef,0xef,0xef,0xef,0xf0,0xf0,
+0xf0,0xf0,0xf0,0xf0,0xf1,0xf1,0xf1,0xf1,
+0xf1,0xf2,0xf2,0xf2,0xf2,0xf2,0xf2,0xf3,
+0xf3,0xf3,0xf3,0xf3,0xf3,0xf4,0xf4,0xf4,
+0xf4,0xf4,0xf4,0xf5,0xf5,0xf5,0xf5,0xf5,
+0xf5,0xf5,0xf6,0xf6,0xf6,0xf6,0xf6,0xf6,
+0xf6,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7,
+0xf8,0xf8,0xf8,0xf8,0xf8,0xf8,0xf8,0xf8,
+0xf9,0xf9,0xf9,0xf9,0xf9,0xf9,0xf9,0xf9,
+0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,
+0xfa,0xfa,0xfb,0xfb,0xfb,0xfb,0xfb,0xfb,
+0xfb,0xfb,0xfb,0xfb,0xfc,0xfc,0xfc,0xfc,
+0xfc,0xfc,0xfc,0xfc,0xfc,0xfc,0xfc,0xfc,
+0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,
+0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfe,0xfe,
+0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,
+0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,
+0xfe,0xfe,0xfe,0xfe,0xff,0xff,0xff,0xff,
+0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+0xff,0xff,0xff,0xff,0xff,0xfe,0xfe,0xfe,
+0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,
+0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,
+0xfe,0xfe,0xfe,0xfd,0xfd,0xfd,0xfd,0xfd,
+0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,
+0xfd,0xfc,0xfc,0xfc,0xfc,0xfc,0xfc,0xfc,
+0xfc,0xfc,0xfc,0xfc,0xfc,0xfb,0xfb,0xfb,
+0xfb,0xfb,0xfb,0xfb,0xfb,0xfb,0xfb,0xfa,
+0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,
+0xfa,0xf9,0xf9,0xf9,0xf9,0xf9,0xf9,0xf9,
+0xf9,0xf8,0xf8,0xf8,0xf8,0xf8,0xf8,0xf8,
+0xf8,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7,
+0xf6,0xf6,0xf6,0xf6,0xf6,0xf6,0xf6,0xf5,
+0xf5,0xf5,0xf5,0xf5,0xf5,0xf5,0xf4,0xf4,
+0xf4,0xf4,0xf4,0xf4,0xf3,0xf3,0xf3,0xf3,
+0xf3,0xf3,0xf2,0xf2,0xf2,0xf2,0xf2,0xf2,
+0xf1,0xf1,0xf1,0xf1,0xf1,0xf0,0xf0,0xf0,
+0xf0,0xf0,0xf0,0xef,0xef,0xef,0xef,0xef,
+0xee,0xee,0xee,0xee,0xee,0xed,0xed,0xed,
+0xed,0xed,0xec,0xec,0xec,0xec,0xec,0xeb,
+0xeb,0xeb,0xeb,0xeb,0xea,0xea,0xea,0xea,
+0xea,0xe9,0xe9,0xe9,0xe9,0xe8,0xe8,0xe8,
+0xe8,0xe8,0xe7,0xe7,0xe7,0xe7,0xe6,0xe6,
+0xe6,0xe6,0xe5,0xe5,0xe5,0xe5,0xe4,0xe4,
+0xe4,0xe4,0xe4,0xe3,0xe3,0xe3,0xe3,0xe2,
+0xe2,0xe2,0xe2,0xe1,0xe1,0xe1,0xe1,0xe0,
+0xe0,0xe0,0xe0,0xdf,0xdf,0xdf,0xde,0xde,
+0xde,0xde,0xdd,0xdd,0xdd,0xdd,0xdc,0xdc,
+0xdc,0xdc,0xdb,0xdb,0xdb,0xda,0xda,0xda,
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generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 18:53:26 +0000