diff options
Diffstat (limited to 'quantum/audio/audio.c')
| -rw-r--r-- | quantum/audio/audio.c | 740 |
1 files changed, 342 insertions, 398 deletions
diff --git a/quantum/audio/audio.c b/quantum/audio/audio.c index 3da164c736..781378788c 100644 --- a/quantum/audio/audio.c +++ b/quantum/audio/audio.c @@ -18,9 +18,9 @@ #include <string.h> //#include <math.h> #if defined(__AVR__) - #include <avr/pgmspace.h> - #include <avr/interrupt.h> - #include <avr/io.h> +# include <avr/pgmspace.h> +# include <avr/interrupt.h> +# include <avr/io.h> #endif #include "print.h" #include "audio.h" @@ -35,119 +35,118 @@ // 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 +// 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 +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 // ----------------------------------------------------------------------------- - -int voices = 0; -int voice_place = 0; -float frequency = 0; +int voices = 0; +int voice_place = 0; +float frequency = 0; float frequency_alt = 0; -int volume = 0; -long position = 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; +int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0}; +bool sliding = false; float place = 0; -uint8_t * sample; +uint8_t* sample; uint16_t sample_length = 0; -bool playing_notes = false; -bool playing_note = false; +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]; +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; +uint8_t rest_counter = 0; #ifdef VIBRATO_ENABLE -float vibrato_counter = 0; +float vibrato_counter = 0; float vibrato_strength = .5; -float vibrato_rate = 0.125; +float vibrato_rate = 0.125; #endif float polyphony_rate = 0; @@ -157,73 +156,69 @@ static bool audio_initialized = false; audio_config_t audio_config; uint16_t envelope_index = 0; -bool glissando = true; +bool glissando = true; #ifndef STARTUP_SONG - #define STARTUP_SONG SONG(STARTUP_SOUND) +# define STARTUP_SONG SONG(STARTUP_SOUND) #endif #ifndef AUDIO_ON_SONG - #define AUDIO_ON_SONG SONG(AUDIO_ON_SOUND) +# define AUDIO_ON_SONG SONG(AUDIO_ON_SOUND) #endif #ifndef AUDIO_OFF_SONG - #define AUDIO_OFF_SONG SONG(AUDIO_OFF_SOUND) +# define AUDIO_OFF_SONG SONG(AUDIO_OFF_SOUND) #endif -float startup_song[][2] = STARTUP_SONG; -float audio_on_song[][2] = AUDIO_ON_SONG; +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() -{ - +void audio_init() { // Check EEPROM - if (!eeconfig_is_enabled()) - { + 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 - // 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 +// 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; } @@ -231,11 +226,9 @@ void audio_init() if (audio_config.enable) { PLAY_SONG(startup_song); } - } -void stop_all_notes() -{ +void stop_all_notes() { dprintf("audio stop all notes"); if (!audio_initialized) { @@ -243,31 +236,29 @@ void stop_all_notes() } voices = 0; - #ifdef CPIN_AUDIO - DISABLE_AUDIO_COUNTER_3_ISR; - DISABLE_AUDIO_COUNTER_3_OUTPUT; - #endif +#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 +#ifdef BPIN_AUDIO + DISABLE_AUDIO_COUNTER_1_ISR; + DISABLE_AUDIO_COUNTER_1_OUTPUT; +#endif playing_notes = false; - playing_note = false; - frequency = 0; + playing_note = false; + frequency = 0; frequency_alt = 0; - volume = 0; + volume = 0; - for (uint8_t i = 0; i < 8; i++) - { + for (uint8_t i = 0; i < 8; i++) { frequencies[i] = 0; - volumes[i] = 0; + volumes[i] = 0; } } -void stop_note(float freq) -{ +void stop_note(float freq) { dprintf("audio stop note freq=%d", (int)freq); if (playing_note) { @@ -277,133 +268,129 @@ void stop_note(float freq) for (int i = 7; i >= 0; i--) { if (frequencies[i] == freq) { frequencies[i] = 0; - volumes[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; + 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 (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; +#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; + volume = 0; + playing_note = false; } } } #ifdef VIBRATO_ENABLE -float mod(float a, int b) -{ +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); +# 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) -{ +ISR(TIMER3_AUDIO_vect) { float freq; if (playing_note) { if (voices > 0) { - - #ifdef BPIN_AUDIO +# 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]; - } + 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]; } - - #ifdef VIBRATO_ENABLE - if (vibrato_strength > 0) { - freq_alt = vibrato(frequency_alt); - } else { - freq_alt = frequency_alt; - } - #else - freq_alt = frequency_alt; - #endif + } else { + frequency_alt = frequencies[voices - 2]; } - if (envelope_index < 65535) { - envelope_index++; +# ifdef VIBRATO_ENABLE + if (vibrato_strength > 0) { + freq_alt = vibrato(frequency_alt); + } else { + freq_alt = frequency_alt; } +# else + freq_alt = frequency_alt; +# endif + } - freq_alt = voice_envelope(freq_alt); + if (envelope_index < 65535) { + envelope_index++; + } - if (freq_alt < 30.517578125) { - freq_alt = 30.52; - } + freq_alt = voice_envelope(freq_alt); - 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); + if (freq_alt < 30.517578125) { + freq_alt = 30.52; } - #endif + + 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; + place = 0.0; } } - #ifdef VIBRATO_ENABLE - if (vibrato_strength > 0) { - freq = vibrato(frequencies[voice_place]); - } else { - freq = frequencies[voice_place]; - } - #else +# ifdef VIBRATO_ENABLE + if (vibrato_strength > 0) { + freq = vibrato(frequencies[voice_place]); + } else { freq = frequencies[voice_place]; - #endif + } +# 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); + 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]; } @@ -411,15 +398,15 @@ ISR(TIMER3_AUDIO_vect) frequency = frequencies[voices - 1]; } - #ifdef VIBRATO_ENABLE - if (vibrato_strength > 0) { - freq = vibrato(frequency); - } else { - freq = frequency; - } - #else +# ifdef VIBRATO_ENABLE + if (vibrato_strength > 0) { + freq = vibrato(frequency); + } else { freq = frequency; - #endif + } +# else + freq = frequency; +# endif } if (envelope_index < 65535) { @@ -432,32 +419,32 @@ ISR(TIMER3_AUDIO_vect) freq = 30.52; } - TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER)); + 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 +# 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_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_PERIOD = 0; TIMER_3_DUTY_CYCLE = 0; } @@ -489,16 +476,16 @@ ISR(TIMER3_AUDIO_vect) current_note--; if ((*notes_pointer)[current_note][0] == (*notes_pointer)[current_note + 1][0]) { note_frequency = 0; - note_length = 1; + note_length = 1; } else { note_frequency = (*notes_pointer)[current_note][0]; - note_length = 1; + note_length = 1; } } else { - note_resting = false; + 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_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100); } note_position = 0; @@ -507,15 +494,14 @@ ISR(TIMER3_AUDIO_vect) if (!audio_config.enable) { playing_notes = false; - playing_note = false; + playing_note = false; } } #endif #ifdef BPIN_AUDIO -ISR(TIMER1_AUDIO_vect) -{ - #if defined(BPIN_AUDIO) && !defined(CPIN_AUDIO) +ISR(TIMER1_AUDIO_vect) { +# if defined(BPIN_AUDIO) && !defined(CPIN_AUDIO) float freq = 0; if (playing_note) { @@ -525,25 +511,25 @@ ISR(TIMER1_AUDIO_vect) voice_place %= voices; if (place++ > (frequencies[voice_place] / polyphony_rate / CPU_PRESCALER)) { voice_place = (voice_place + 1) % voices; - place = 0.0; + place = 0.0; } } - #ifdef VIBRATO_ENABLE - if (vibrato_strength > 0) { - freq = vibrato(frequencies[voice_place]); - } else { - freq = frequencies[voice_place]; - } - #else +# ifdef VIBRATO_ENABLE + if (vibrato_strength > 0) { + freq = vibrato(frequencies[voice_place]); + } else { freq = frequencies[voice_place]; - #endif + } +# 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); + 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]; } @@ -551,15 +537,15 @@ ISR(TIMER1_AUDIO_vect) frequency = frequencies[voices - 1]; } - #ifdef VIBRATO_ENABLE - if (vibrato_strength > 0) { - freq = vibrato(frequency); - } else { - freq = frequency; - } - #else +# ifdef VIBRATO_ENABLE + if (vibrato_strength > 0) { + freq = vibrato(frequency); + } else { freq = frequency; - #endif + } +# else + freq = frequency; +# endif } if (envelope_index < 65535) { @@ -572,32 +558,32 @@ ISR(TIMER1_AUDIO_vect) freq = 30.52; } - TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER)); + 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 +# 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_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_PERIOD = 0; TIMER_1_DUTY_CYCLE = 0; } @@ -629,16 +615,16 @@ ISR(TIMER1_AUDIO_vect) current_note--; if ((*notes_pointer)[current_note][0] == (*notes_pointer)[current_note + 1][0]) { note_frequency = 0; - note_length = 1; + note_length = 1; } else { note_frequency = (*notes_pointer)[current_note][0]; - note_length = 1; + note_length = 1; } } else { - note_resting = false; + 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_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100); } note_position = 0; @@ -647,14 +633,13 @@ ISR(TIMER1_AUDIO_vect) if (!audio_config.enable) { playing_notes = false; - playing_note = false; + playing_note = false; } -#endif +# endif } #endif void play_note(float freq, int vol) { - dprintf("audio play note freq=%d vol=%d", (int)freq, vol); if (!audio_initialized) { @@ -662,16 +647,15 @@ void play_note(float freq, int vol) { } if (audio_config.enable && voices < 8) { - #ifdef CPIN_AUDIO - DISABLE_AUDIO_COUNTER_3_ISR; - #endif - #ifdef BPIN_AUDIO - DISABLE_AUDIO_COUNTER_1_ISR; - #endif +#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(); + if (playing_notes) stop_all_notes(); playing_note = true; @@ -679,90 +663,78 @@ void play_note(float freq, int vol) { if (freq > 0) { frequencies[voices] = freq; - volumes[voices] = vol; + 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 +#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; - #endif - #endif + } +# 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) -{ - +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 +#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(); + if (playing_note) stop_all_notes(); playing_notes = true; notes_pointer = np; - notes_count = n_count; - notes_repeat = n_repeat; + notes_count = n_count; + notes_repeat = n_repeat; - place = 0; + 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; + 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 +#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_playing_notes(void) { return playing_notes; } -bool is_audio_on(void) { - return (audio_config.enable != 0); -} +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(); + if (audio_config.enable) audio_on_user(); } void audio_on(void) { @@ -784,73 +756,45 @@ void audio_off(void) { // Vibrato rate functions -void set_vibrato_rate(float rate) { - vibrato_rate = rate; -} +void set_vibrato_rate(float rate) { vibrato_rate = rate; } -void increase_vibrato_rate(float change) { - vibrato_rate *= change; -} +void increase_vibrato_rate(float change) { vibrato_rate *= change; } -void decrease_vibrato_rate(float change) { - vibrato_rate /= change; -} +void decrease_vibrato_rate(float change) { vibrato_rate /= change; } -#ifdef VIBRATO_STRENGTH_ENABLE +# ifdef VIBRATO_STRENGTH_ENABLE -void set_vibrato_strength(float strength) { - vibrato_strength = strength; -} +void set_vibrato_strength(float strength) { vibrato_strength = strength; } -void increase_vibrato_strength(float change) { - vibrato_strength *= change; -} +void increase_vibrato_strength(float change) { vibrato_strength *= change; } -void decrease_vibrato_strength(float change) { - vibrato_strength /= change; -} +void decrease_vibrato_strength(float change) { vibrato_strength /= change; } -#endif /* VIBRATO_STRENGTH_ENABLE */ +# endif /* VIBRATO_STRENGTH_ENABLE */ #endif /* VIBRATO_ENABLE */ // Polyphony functions -void set_polyphony_rate(float rate) { - polyphony_rate = rate; -} +void set_polyphony_rate(float rate) { polyphony_rate = rate; } -void enable_polyphony() { - polyphony_rate = 5; -} +void enable_polyphony() { polyphony_rate = 5; } -void disable_polyphony() { - polyphony_rate = 0; -} +void disable_polyphony() { polyphony_rate = 0; } -void increase_polyphony_rate(float change) { - polyphony_rate *= change; -} +void increase_polyphony_rate(float change) { polyphony_rate *= change; } -void decrease_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; -} +void set_timbre(float timbre) { note_timbre = timbre; } // Tempo functions -void set_tempo(uint8_t tempo) { - note_tempo = tempo; -} +void set_tempo(uint8_t tempo) { note_tempo = tempo; } -void decrease_tempo(uint8_t tempo_change) { - note_tempo += tempo_change; -} +void decrease_tempo(uint8_t tempo_change) { note_tempo += tempo_change; } void increase_tempo(uint8_t tempo_change) { if (note_tempo - tempo_change < 10) { |