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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; - } -} |