diff options
Diffstat (limited to 'quantum/audio/audio_avr.c')
| -rw-r--r-- | quantum/audio/audio_avr.c | 810 | 
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; -    } -} | 
