2021 February 27 Breaking Changes Update (#12040)

1 files changed, 0 insertions, 810 deletions

diff --git a/quantum/audio/audio_avr.c b/quantum/audio/audio_avr.c
deleted file mode 100644
index 5a96bf6439..0000000000
--- a/quantum/audio/audio_avr.c
+++ /dev/null
@@ -1,810 +0,0 @@
-/* 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>
-#if defined(__AVR__)
-#    include <avr/pgmspace.h>
-#    include <avr/interrupt.h>
-#    include <avr/io.h>
-#endif
-#include "print.h"
-#include "audio.h"
-#include "keymap.h"
-#include "wait.h"
-
-#include "eeconfig.h"
-
-#define CPU_PRESCALER 8
-
-// -----------------------------------------------------------------------------
-// Timer Abstractions
-// -----------------------------------------------------------------------------
-
-// Currently we support timers 1 and 3 used at the sime time, channels A-C,
-// pins PB5, PB6, PB7, PC4, PC5, and PC6
-#if defined(C6_AUDIO)
-#    define CPIN_AUDIO
-#    define CPIN_SET_DIRECTION DDRC |= _BV(PORTC6);
-#    define INIT_AUDIO_COUNTER_3 TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
-#    define ENABLE_AUDIO_COUNTER_3_ISR TIMSK3 |= _BV(OCIE3A)
-#    define DISABLE_AUDIO_COUNTER_3_ISR TIMSK3 &= ~_BV(OCIE3A)
-#    define ENABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A |= _BV(COM3A1);
-#    define DISABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A &= ~(_BV(COM3A1) | _BV(COM3A0));
-#    define TIMER_3_PERIOD ICR3
-#    define TIMER_3_DUTY_CYCLE OCR3A
-#    define TIMER3_AUDIO_vect TIMER3_COMPA_vect
-#endif
-#if defined(C5_AUDIO)
-#    define CPIN_AUDIO
-#    define CPIN_SET_DIRECTION DDRC |= _BV(PORTC5);
-#    define INIT_AUDIO_COUNTER_3 TCCR3A = (0 << COM3B1) | (0 << COM3B0) | (1 << WGM31) | (0 << WGM30);
-#    define ENABLE_AUDIO_COUNTER_3_ISR TIMSK3 |= _BV(OCIE3B)
-#    define DISABLE_AUDIO_COUNTER_3_ISR TIMSK3 &= ~_BV(OCIE3B)
-#    define ENABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A |= _BV(COM3B1);
-#    define DISABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A &= ~(_BV(COM3B1) | _BV(COM3B0));
-#    define TIMER_3_PERIOD ICR3
-#    define TIMER_3_DUTY_CYCLE OCR3B
-#    define TIMER3_AUDIO_vect TIMER3_COMPB_vect
-#endif
-#if defined(C4_AUDIO)
-#    define CPIN_AUDIO
-#    define CPIN_SET_DIRECTION DDRC |= _BV(PORTC4);
-#    define INIT_AUDIO_COUNTER_3 TCCR3A = (0 << COM3C1) | (0 << COM3C0) | (1 << WGM31) | (0 << WGM30);
-#    define ENABLE_AUDIO_COUNTER_3_ISR TIMSK3 |= _BV(OCIE3C)
-#    define DISABLE_AUDIO_COUNTER_3_ISR TIMSK3 &= ~_BV(OCIE3C)
-#    define ENABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A |= _BV(COM3C1);
-#    define DISABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A &= ~(_BV(COM3C1) | _BV(COM3C0));
-#    define TIMER_3_PERIOD ICR3
-#    define TIMER_3_DUTY_CYCLE OCR3C
-#    define TIMER3_AUDIO_vect TIMER3_COMPC_vect
-#endif
-
-#if defined(B5_AUDIO)
-#    define BPIN_AUDIO
-#    define BPIN_SET_DIRECTION DDRB |= _BV(PORTB5);
-#    define INIT_AUDIO_COUNTER_1 TCCR1A = (0 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (0 << WGM10);
-#    define ENABLE_AUDIO_COUNTER_1_ISR TIMSK1 |= _BV(OCIE1A)
-#    define DISABLE_AUDIO_COUNTER_1_ISR TIMSK1 &= ~_BV(OCIE1A)
-#    define ENABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A |= _BV(COM1A1);
-#    define DISABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A &= ~(_BV(COM1A1) | _BV(COM1A0));
-#    define TIMER_1_PERIOD ICR1
-#    define TIMER_1_DUTY_CYCLE OCR1A
-#    define TIMER1_AUDIO_vect TIMER1_COMPA_vect
-#endif
-#if defined(B6_AUDIO)
-#    define BPIN_AUDIO
-#    define BPIN_SET_DIRECTION DDRB |= _BV(PORTB6);
-#    define INIT_AUDIO_COUNTER_1 TCCR1A = (0 << COM1B1) | (0 << COM1B0) | (1 << WGM11) | (0 << WGM10);
-#    define ENABLE_AUDIO_COUNTER_1_ISR TIMSK1 |= _BV(OCIE1B)
-#    define DISABLE_AUDIO_COUNTER_1_ISR TIMSK1 &= ~_BV(OCIE1B)
-#    define ENABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A |= _BV(COM1B1);
-#    define DISABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A &= ~(_BV(COM1B1) | _BV(COM1B0));
-#    define TIMER_1_PERIOD ICR1
-#    define TIMER_1_DUTY_CYCLE OCR1B
-#    define TIMER1_AUDIO_vect TIMER1_COMPB_vect
-#endif
-#if defined(B7_AUDIO)
-#    define BPIN_AUDIO
-#    define BPIN_SET_DIRECTION DDRB |= _BV(PORTB7);
-#    define INIT_AUDIO_COUNTER_1 TCCR1A = (0 << COM1C1) | (0 << COM1C0) | (1 << WGM11) | (0 << WGM10);
-#    define ENABLE_AUDIO_COUNTER_1_ISR TIMSK1 |= _BV(OCIE1C)
-#    define DISABLE_AUDIO_COUNTER_1_ISR TIMSK1 &= ~_BV(OCIE1C)
-#    define ENABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A |= _BV(COM1C1);
-#    define DISABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A &= ~(_BV(COM1C1) | _BV(COM1C0));
-#    define TIMER_1_PERIOD ICR1
-#    define TIMER_1_DUTY_CYCLE OCR1C
-#    define TIMER1_AUDIO_vect TIMER1_COMPC_vect
-#endif
-
-#if !defined(BPIN_AUDIO) && !defined(CPIN_AUDIO)
-#    error "Audio feature enabled, but no suitable pin selected - see docs/feature_audio.md under the AVR settings for available options."
-#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;
-bool     note_resting = false;
-
-uint16_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;
-
-#ifndef STARTUP_SONG
-#    define STARTUP_SONG SONG(STARTUP_SOUND)
-#endif
-#ifndef AUDIO_ON_SONG
-#    define AUDIO_ON_SONG SONG(AUDIO_ON_SOUND)
-#endif
-#ifndef AUDIO_OFF_SONG
-#    define AUDIO_OFF_SONG SONG(AUDIO_OFF_SOUND)
-#endif
-float startup_song[][2]   = STARTUP_SONG;
-float audio_on_song[][2]  = AUDIO_ON_SONG;
-float audio_off_song[][2] = AUDIO_OFF_SONG;
-
-void audio_init() {
-    // Check EEPROM
-    if (!eeconfig_is_enabled()) {
-        eeconfig_init();
-    }
-    audio_config.raw = eeconfig_read_audio();
-
-    if (!audio_initialized) {
-// Set audio ports as output
-#ifdef CPIN_AUDIO
-        CPIN_SET_DIRECTION
-        DISABLE_AUDIO_COUNTER_3_ISR;
-#endif
-#ifdef BPIN_AUDIO
-        BPIN_SET_DIRECTION
-        DISABLE_AUDIO_COUNTER_1_ISR;
-#endif
-
-// TCCR3A / TCCR3B: Timer/Counter #3 Control Registers TCCR3A/TCCR3B, TCCR1A/TCCR1B
-// Compare Output Mode (COM3An and COM1An) = 0b00 = Normal port operation
-//   OC3A -- PC6
-//   OC3B -- PC5
-//   OC3C -- PC4
-//   OC1A -- PB5
-//   OC1B -- PB6
-//   OC1C -- PB7
-
-// Waveform Generation Mode (WGM3n) = 0b1110 = Fast PWM Mode 14. Period = ICR3, Duty Cycle OCR3A)
-//   OCR3A - PC6
-//   OCR3B - PC5
-//   OCR3C - PC4
-//   OCR1A - PB5
-//   OCR1B - PB6
-//   OCR1C - PB7
-
-// Clock Select (CS3n) = 0b010 = Clock / 8
-#ifdef CPIN_AUDIO
-        INIT_AUDIO_COUNTER_3
-        TCCR3B             = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
-        TIMER_3_PERIOD     = (uint16_t)(((float)F_CPU) / (440 * CPU_PRESCALER));
-        TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (440 * CPU_PRESCALER)) * note_timbre);
-#endif
-#ifdef BPIN_AUDIO
-        INIT_AUDIO_COUNTER_1
-        TCCR1B             = (1 << WGM13) | (1 << WGM12) | (0 << CS12) | (1 << CS11) | (0 << CS10);
-        TIMER_1_PERIOD     = (uint16_t)(((float)F_CPU) / (440 * CPU_PRESCALER));
-        TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (440 * CPU_PRESCALER)) * note_timbre);
-#endif
-
-        audio_initialized = true;
-    }
-
-    if (audio_config.enable) {
-        PLAY_SONG(startup_song);
-    }
-}
-
-void stop_all_notes() {
-    dprintf("audio stop all notes");
-
-    if (!audio_initialized) {
-        audio_init();
-    }
-    voices = 0;
-
-#ifdef CPIN_AUDIO
-    DISABLE_AUDIO_COUNTER_3_ISR;
-    DISABLE_AUDIO_COUNTER_3_OUTPUT;
-#endif
-
-#ifdef BPIN_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 CPIN_AUDIO
-            DISABLE_AUDIO_COUNTER_3_ISR;
-            DISABLE_AUDIO_COUNTER_3_OUTPUT;
-#endif
-#ifdef BPIN_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 CPIN_AUDIO
-ISR(TIMER3_AUDIO_vect) {
-    float freq;
-
-    if (playing_note) {
-        if (voices > 0) {
-#    ifdef BPIN_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) {
-            if (!note_resting)
-                end_of_note = (note_position >= (note_length / TIMER_3_PERIOD * 0xFFFF - 1));
-            else
-                end_of_note = (note_position >= (note_length));
-        } else {
-            end_of_note = (note_position >= (note_length));
-        }
-
-        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) {
-                note_resting = true;
-                current_note--;
-                if ((*notes_pointer)[current_note][0] == (*notes_pointer)[current_note + 1][0]) {
-                    note_frequency = 0;
-                    note_length    = 1;
-                } else {
-                    note_frequency = (*notes_pointer)[current_note][0];
-                    note_length    = 1;
-                }
-            } 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 BPIN_AUDIO
-ISR(TIMER1_AUDIO_vect) {
-#    if defined(BPIN_AUDIO) && !defined(CPIN_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) {
-            if (!note_resting)
-                end_of_note = (note_position >= (note_length / TIMER_1_PERIOD * 0xFFFF - 1));
-            else
-                end_of_note = (note_position >= (note_length));
-        } else {
-            end_of_note = (note_position >= (note_length));
-        }
-
-        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) {
-                note_resting = true;
-                current_note--;
-                if ((*notes_pointer)[current_note][0] == (*notes_pointer)[current_note + 1][0]) {
-                    note_frequency = 0;
-                    note_length    = 1;
-                } else {
-                    note_frequency = (*notes_pointer)[current_note][0];
-                    note_length    = 1;
-                }
-            } 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 CPIN_AUDIO
-        DISABLE_AUDIO_COUNTER_3_ISR;
-#endif
-#ifdef BPIN_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 CPIN_AUDIO
-        ENABLE_AUDIO_COUNTER_3_ISR;
-        ENABLE_AUDIO_COUNTER_3_OUTPUT;
-#endif
-#ifdef BPIN_AUDIO
-#    ifdef CPIN_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) {
-    if (!audio_initialized) {
-        audio_init();
-    }
-
-    if (audio_config.enable) {
-#ifdef CPIN_AUDIO
-        DISABLE_AUDIO_COUNTER_3_ISR;
-#endif
-#ifdef BPIN_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;
-
-        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 CPIN_AUDIO
-        ENABLE_AUDIO_COUNTER_3_ISR;
-        ENABLE_AUDIO_COUNTER_3_OUTPUT;
-#endif
-#ifdef BPIN_AUDIO
-#    ifndef CPIN_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();
-    PLAY_SONG(audio_on_song);
-}
-
-void audio_off(void) {
-    PLAY_SONG(audio_off_song);
-    wait_ms(100);
-    stop_all_notes();
-    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;
-    }
-}