diff options
Diffstat (limited to 'quantum')
106 files changed, 10130 insertions, 2052 deletions
diff --git a/quantum/audio.c b/quantum/audio.c deleted file mode 100644 index d8768f1609..0000000000 --- a/quantum/audio.c +++ /dev/null @@ -1,483 +0,0 @@ -#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_common.h" - -#include "eeconfig.h" - -#define PI 3.14159265 - -#define CPU_PRESCALER 8 - -// #define PWM_AUDIO - -#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 -#endif - -void delay_us(int count) { - while(count--) { - _delay_us(1); - } -} - -int voices = 0; -int voice_place = 0; -double frequency = 0; -int volume = 0; -long position = 0; -int duty_place = 1; -int duty_counter = 0; - -double frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0}; -int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0}; -bool sliding = false; - -int max = 0xFF; -float sum = 0; -int value = 128; -float place = 0; -float places[8] = {0, 0, 0, 0, 0, 0, 0, 0}; - -uint16_t place_int = 0; -bool repeat = true; -uint8_t * sample; -uint16_t sample_length = 0; - - -bool notes = false; -bool note = false; -float note_frequency = 0; -float note_length = 0; -float note_tempo = TEMPO_DEFAULT; -float note_timbre = TIMBRE_DEFAULT; -uint16_t note_position = 0; -float (* notes_pointer)[][2]; -uint8_t notes_count; -bool notes_repeat; -float notes_rest; -bool note_resting = false; -int note_flipper = 0; - -uint8_t current_note = 0; -uint8_t rest_counter = 0; - -audio_config_t audio_config; - - -void audio_toggle(void) { - audio_config.enable ^= 1; - eeconfig_write_audio(audio_config.raw); -} - -void audio_on(void) { - audio_config.enable = 1; - eeconfig_write_audio(audio_config.raw); -} - -void audio_off(void) { - audio_config.enable = 0; - eeconfig_write_audio(audio_config.raw); -} - - -void stop_all_notes() { - voices = 0; - #ifdef PWM_AUDIO - TIMSK3 &= ~_BV(OCIE3A); - #else - TIMSK3 &= ~_BV(OCIE3A); - TCCR3A &= ~_BV(COM3A1); - #endif - notes = false; - note = false; - frequency = 0; - volume = 0; - - for (int i = 0; i < 8; i++) { - frequencies[i] = 0; - volumes[i] = 0; - } -} - -void stop_note(double freq) { - if (note) { - #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; - } - } - } - voices--; - if (voices < 0) - voices = 0; - if (voice_place >= voices) { - voice_place = 0; - } - if (voices == 0) { - #ifdef PWM_AUDIO - TIMSK3 &= ~_BV(OCIE3A); - #else - TIMSK3 &= ~_BV(OCIE3A); - TCCR3A &= ~_BV(COM3A1); - #endif - frequency = 0; - volume = 0; - note = false; - } - } -} - -void init_notes() { - - /* check signature */ - 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); - - TIMSK3 &= ~_BV(OCIE3A); // 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 - DDRC |= _BV(PORTC6); - - TIMSK3 &= ~_BV(OCIE3A); // Turn off 3A interputs - - TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30); - TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30); - #endif -} - - -ISR(TIMER3_COMPA_vect) { - if (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 (frequencies[voice_place] > 0) { - // if (frequencies[voice_place] > 880.0) { - // if (note_flipper == 100) { - // note_flipper = 0; - // return; - // } - // note_flipper++; - // } else { - // note_flipper = 0; - // } - // ICR3 = (int)(((double)F_CPU) / frequency); // Set max to the period - // OCR3A = (int)(((double)F_CPU) / frequency) >> 1; // Set compare to half the period - - double freq; - if (false) { - voice_place %= voices; - if (place > (frequencies[voice_place] / 50)) { - voice_place = (voice_place + 1) % voices; - place = 0.0; - } - freq = frequencies[voice_place]; - } else { - if (frequency != 0) { - if (frequency < frequencies[voices - 1]) { - frequency = frequency * 1.01454533494; - } else if (frequency > frequencies[voices - 1]) { - frequency = frequency * 0.98566319864; - }</ |