From eb61700912f1713ba27d34c23d7f07be66ee6513 Mon Sep 17 00:00:00 2001 From: Jack Humbert Date: Wed, 20 Jan 2016 00:06:52 -0500 Subject: better integrations --- quantum/audio.c | 362 ++++++++++++++++++++++++++++++++++++++++++++++++++ quantum/audio.h | 11 ++ quantum/beeps.c | 265 ------------------------------------ quantum/beeps.h | 15 --- quantum/keymap_midi.c | 4 +- quantum/quantum.mk | 7 +- 6 files changed, 380 insertions(+), 284 deletions(-) create mode 100644 quantum/audio.c create mode 100644 quantum/audio.h delete mode 100644 quantum/beeps.c delete mode 100644 quantum/beeps.h (limited to 'quantum') diff --git a/quantum/audio.c b/quantum/audio.c new file mode 100644 index 0000000000..3a3a1a4910 --- /dev/null +++ b/quantum/audio.c @@ -0,0 +1,362 @@ +#include +#include +#include +#include +#include +#include + +#include "audio.h" +#include "keymap_common.h" + +#define PI 3.14159265 + +// #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; + +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; +uint16_t note_position = 0; +float (* notes_pointer)[][2]; +uint8_t notes_length; +bool notes_repeat; +uint8_t current_note = 0; + +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) { + #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 (voices == 0) { + #ifdef PWM_AUDIO + TIMSK3 &= ~_BV(OCIE3A); + #else + TIMSK3 &= ~_BV(OCIE3A); + TCCR3A &= ~_BV(COM3A1); + #endif + frequency = 0; + volume = 0; + note = false; + } else { + double freq = frequencies[voices - 1]; + int vol = volumes[voices - 1]; + double starting_f = frequency; + if (frequency < freq) { + sliding = true; + for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 2000.0)) { + frequency = f; + } + sliding = false; + } else if (frequency > freq) { + sliding = true; + for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 2000.0)) { + frequency = f; + } + sliding = false; + } + frequency = freq; + volume = vol; + } +} + +void init_notes() { + + #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 (frequency > 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 + if (place > 10) { + voice_place = (voice_place + 1) % voices; + place = 0.0; + } + ICR3 = (int)(((double)F_CPU) / frequencies[voice_place]); // Set max to the period + OCR3A = (int)(((double)F_CPU) / frequencies[voice_place]) >> 1; // Set compare to half the period + place++; + } + #endif + } + + // SAMPLE + // OCR4A = pgm_read_byte(&sample[(uint16_t)place_int]); + + // place_int++; + + // if (place_int >= sample_length) + // if (repeat) + // place_int -= sample_length; + // else + // TIMSK3 &= ~_BV(OCIE3A); + + + if (notes) { + #ifdef PWM_AUDIO + OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]) >> 0; + + place += note_frequency; + if (place >= SINE_LENGTH) + place -= SINE_LENGTH; + #else + if (note_frequency > 0) { + ICR3 = (int)(((double)F_CPU) / note_frequency); // Set max to the period + OCR3A = (int)(((double)F_CPU) / note_frequency) >> 1; // Set compare to half the period + } + #endif + + + note_position++; + if (note_position >= note_length) { + current_note++; + if (current_note >= notes_length) { + if (notes_repeat) { + current_note = 0; + } else { + #ifdef PWM_AUDIO + TIMSK3 &= ~_BV(OCIE3A); + #else + TIMSK3 &= ~_BV(OCIE3A); + TCCR3A &= ~_BV(COM3A1); + #endif + notes = false; + return; + } + } + #ifdef PWM_AUDIO + note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE; + note_length = (*notes_pointer)[current_note][1]; + #else + note_frequency = (*notes_pointer)[current_note][0]; + note_length = (*notes_pointer)[current_note][1] / 4; + #endif + note_position = 0; + } + + } + +} + +void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat) { + if (note) + stop_all_notes(); + notes = true; + + notes_pointer = np; + notes_length = n_length; + notes_repeat = n_repeat; + + place = 0; + current_note = 0; + #ifdef PWM_AUDIO + note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE; + note_length = (*notes_pointer)[current_note][1]; + #else + note_frequency = (*notes_pointer)[current_note][0]; + note_length = (*notes_pointer)[current_note][1] / 4; + #endif + note_position = 0; + + + #ifdef PWM_AUDIO + TIMSK3 |= _BV(OCIE3A); + #else + TIMSK3 |= _BV(OCIE3A); + TCCR3A |= _BV(COM3A1); + #endif +} + +void play_sample(uint8_t * s, uint16_t l, bool r) { + stop_all_notes(); + place_int = 0; + sample = s; + sample_length = l; + repeat = r; + + #ifdef PWM_AUDIO + TIMSK3 |= _BV(OCIE3A); + #else + #endif +} + +void play_note(double freq, int vol) { + if (notes) + stop_all_notes(); + note = true; + #ifdef PWM_AUDIO + freq = freq / SAMPLE_RATE; + #endif + if (freq > 0) { + if (frequency != 0) { + double starting_f = frequency; + if (frequency < freq) { + for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 2000.0)) { + frequency = f; + } + } else if (frequency > freq) { + for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 2000.0)) { + frequency = f; + } + } + } + frequency = freq; + volume = vol; + + frequencies[voices] = frequency; + volumes[voices] = volume; + voices++; + } + + #ifdef PWM_AUDIO + TIMSK3 |= _BV(OCIE3A); + #else + TIMSK3 |= _BV(OCIE3A); + TCCR3A |= _BV(COM3A1); + #endif + +} \ No newline at end of file diff --git a/quantum/audio.h b/quantum/audio.h new file mode 100644 index 0000000000..99203cea7a --- /dev/null +++ b/quantum/audio.h @@ -0,0 +1,11 @@ +#include +#include +#include +#include + +void play_sample(uint8_t * s, uint16_t l, bool r); +void play_note(double freq, int vol); +void stop_note(double freq); +void stop_all_notes(); +void init_notes(); +void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat); \ No newline at end of file diff --git a/quantum/beeps.c b/quantum/beeps.c deleted file mode 100644 index 7586ebc522..0000000000 --- a/quantum/beeps.c +++ /dev/null @@ -1,265 +0,0 @@ -#include -#include -#include -#include -#include -#include - -#include "beeps.h" -#include "keymap_common.h" -#include "wave.h" - -#define PI 3.14159265 - -#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 - -void delay_us(int count) { - while(count--) { - _delay_us(1); - } -} - -int voices = 0; -double frequency = 0; -int volume = 0; -long position = 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; -#define RANGE 1000 -volatile int i=0; //elements of the wave - -int max = 0xFF; -float sum = 0; -int value = 128; -float place = 0; - -uint16_t place_int = 0; -bool repeat = true; -uint8_t * sample; -uint16_t sample_length = 0; - - -bool notes = false; -float note_frequency = 0; -float note_length = 0; -uint16_t note_position = 0; -float (* notes_pointer)[][2]; -uint8_t notes_length; -bool notes_repeat; -uint8_t current_note = 0; - -void stop_all_notes() { - voices = 0; - TIMSK3 &= ~_BV(OCIE3A); - notes = false; - playing_notes = false; - frequency = 0; - volume = 0; - - for (int i = 0; i < 8; i++) { - frequencies[i] = 0; - volumes[i] = 0; - } -} - -void stop_note(double freq) { - freq = freq / SAMPLE_RATE; - 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 (voices == 0) { - TIMSK3 &= ~_BV(OCIE3A); - frequency = 0; - volume = 0; - } else { - double freq = frequencies[voices - 1]; - int vol = volumes[voices - 1]; - double starting_f = frequency; - if (frequency < freq) { - sliding = true; - for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 500.0)) { - frequency = f; - } - sliding = false; - } else if (frequency > freq) { - sliding = true; - for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 500.0)) { - frequency = f; - } - sliding = false; - } - frequency = freq; - volume = vol; - } -} - -void init_notes() { - - 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 - - playing_notes = false; - -} - - -ISR(TIMER3_COMPA_vect) { - - - // SINE - // OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]); - - // SQUARE - // if (((int)place) >= 1024){ - // OCR4A = 0xFF; - // } 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) - // if (repeat) - // place -= SINE_LENGTH; - // else - // TIMSK3 &= ~_BV(OCIE3A); - - // SAMPLE - // OCR4A = pgm_read_byte(&sample[(uint16_t)place_int]); - - // place_int++; - - // if (place_int >= sample_length) - // if (repeat) - // place_int -= sample_length; - // else - // TIMSK3 &= ~_BV(OCIE3A); - - - if (notes) { - OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]) >> 0; - - place += note_frequency; - if (place >= SINE_LENGTH) - place -= SINE_LENGTH; - note_position++; - if (note_position >= note_length) { - current_note++; - if (current_note >= notes_length) { - if (notes_repeat) { - current_note = 0; - } else { - TIMSK3 &= ~_BV(OCIE3A); - notes = false; - playing_notes = false; - return; - } - } - note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE; - note_length = (*notes_pointer)[current_note][1]; - note_position = 0; - } - - } - -} - -void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat) { - notes = true; - - notes_pointer = np; - notes_length = n_length; - notes_repeat = n_repeat; - - place = 0; - current_note = 0; - note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE; - note_length = (*notes_pointer)[current_note][1]; - // note_frequency = 880.0 / SAMPLE_RATE; - // note_length = 1000; - note_position = 0; - - - TIMSK3 |= _BV(OCIE3A); - playing_notes = true; -} - -void play_sample(uint8_t * s, uint16_t l, bool r) { - place_int = 0; - sample = s; - sample_length = l; - repeat = r; - - TIMSK3 |= _BV(OCIE3A); - playing_notes = true; -} - -void play_note(double freq, int vol) { - - freq = freq / SAMPLE_RATE; - if (freq > 0) { - if (frequency != 0) { - double starting_f = frequency; - if (frequency < freq) { - for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 500.0)) { - frequency = f; - } - } else if (frequency > freq) { - for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 500.0)) { - frequency = f; - } - } - } - frequency = freq; - volume = vol; - - frequencies[voices] = frequency; - volumes[voices] = volume; - voices++; - } - - TIMSK3 |= _BV(OCIE3A); - -} \ No newline at end of file diff --git a/quantum/beeps.h b/quantum/beeps.h deleted file mode 100644 index 4ccc344973..0000000000 --- a/quantum/beeps.h +++ /dev/null @@ -1,15 +0,0 @@ -#include -#include -#include -#include - -bool playing_notes; - -void play_sample(uint8_t * s, uint16_t l, bool r); -void play_note(double freq, int vol); -void stop_note(double freq); -void stop_all_notes(); -void init_notes(); - - -void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat); \ No newline at end of file diff --git a/quantum/keymap_midi.c b/quantum/keymap_midi.c index 3a1408e220..e37ea31039 100644 --- a/quantum/keymap_midi.c +++ b/quantum/keymap_midi.c @@ -100,10 +100,10 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt) if (record->event.pressed) { // midi_send_noteon(&midi_device, record->event.key.row, starting_note + SCALE[record->event.key.col], 127); midi_send_noteon(&midi_device, 0, (starting_note + SCALE[record->event.key.col + offset])+12*(MATRIX_ROWS - record->event.key.row), 127); - play_note(((double)261.626)*pow(2.0, 0.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row)), 0xF); + play_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row)), 0xF); } else { // midi_send_noteoff(&midi_device, record->event.key.row, starting_note + SCALE[record->event.key.col], 127); midi_send_noteoff(&midi_device, 0, (starting_note + SCALE[record->event.key.col + offset])+12*(MATRIX_ROWS - record->event.key.row), 127); - stop_note(((double)261.626)*pow(2.0, 0.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row))); + stop_note(((double)261.626)*pow(2.0, -1.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row))); } } \ No newline at end of file diff --git a/quantum/quantum.mk b/quantum/quantum.mk index c82e478725..81a53f2035 100644 --- a/quantum/quantum.mk +++ b/quantum/quantum.mk @@ -9,8 +9,11 @@ ifndef CUSTOM_MATRIX endif ifdef MIDI_ENABLE - SRC += $(QUANTUM_DIR)/keymap_midi.c \ - $(QUANTUM_DIR)/beeps.c + SRC += $(QUANTUM_DIR)/keymap_midi.c +endif + +ifdef AUDIO_ENABLE + SRC += $(QUANTUM_DIR)/audio.c endif ifdef UNICODE_ENABLE -- cgit v1.2.3