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note seq, start-up beeps, function beeps

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b6_b7_audio
Jack Humbert 9 years ago
parent 263344d42f
commit 4c100dbbef
3 changed files with 183 additions and 46 deletions
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  1. 73
      keyboard/planck/keymaps/keymap_lock.c
  2. 147
      quantum/beeps.c
  3. 9
      quantum/beeps.h

73
keyboard/planck/keymaps/keymap_lock.c
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@ -2,6 +2,7 @@
// #include "backlight.h"
#include "action_layer.h"
#include "keymap_midi.h"
#include "beeps.h"
#include <avr/boot.h>
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
@ -63,12 +64,26 @@ uint16_t hextokeycode(int hex) {
}
}
float walk_up[][2] = {
{440.0*pow(2.0,(60)/12.0), 400},
{0, 50},
{440.0*pow(2.0,(67)/12.0), 400},
};
float walk_dn[][2] = {
{440.0*pow(2.0,(67)/12.0), 400},
{0, 50},
{440.0*pow(2.0,(60)/12.0), 400},
};
const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
{
// MACRODOWN only works in this function
switch(id) {
case 0:
if (record->event.pressed) {
play_notes(&walk_up, 3, false);
// play_note(440, 20);
// register_code(KC_RSFT);
// backlight_set(BACKLIGHT_LEVELS);
@ -107,7 +122,7 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
// note(0+24, 20);
} else {
unregister_code(KC_RSFT);
stop_all_notes();
play_notes(&walk_dn, 3, false);
// backlight_set(0);
default_layer_and(0);
default_layer_or(0);
@ -120,32 +135,58 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
return MACRO_NONE;
};
float start_up[][2] = {
{440.0*pow(2.0,(67)/12.0), 600},
{0, 50},
{440.0*pow(2.0,(64)/12.0), 400},
{0, 50},
{440.0*pow(2.0,(55)/12.0), 400},
{0, 50},
{440.0*pow(2.0,(60)/12.0), 400},
{0, 50},
{440.0*pow(2.0,(64)/12.0), 1000},
};
void * matrix_init_user(void) {
init_notes();
play_note(((double)261.6*3)*pow(2.0,(36)/12.0), 0xF);
_delay_ms(50);
play_notes(&start_up, 9, false);
// play_note(((double)261.6*3)*pow(2.0,(36)/12.0), 0xF);
// _delay_ms(50);
play_note(((double)261.6*3)*pow(2.0,(48)/12.0), 0xF);
_delay_ms(25);
stop_note(((double)261.6*3)*pow(2.0,(48)/12.0));
// play_note(((double)261.6*3)*pow(2.0,(48)/12.0), 0xF);
// _delay_ms(25);
// stop_note(((double)261.6*3)*pow(2.0,(48)/12.0));
play_note(((double)261.6*3)*pow(2.0,(48)/12.0), 0xF);
_delay_ms(25);
stop_note(((double)261.6*3)*pow(2.0,(48)/12.0));
// play_note(((double)261.6*3)*pow(2.0,(48)/12.0), 0xF);
// _delay_ms(25);
// stop_note(((double)261.6*3)*pow(2.0,(48)/12.0));
stop_note(((double)261.6*3)*pow(2.0,(36)/12.0));
// stop_note(((double)261.6*3)*pow(2.0,(36)/12.0));
play_note(((double)261.6*3)*pow(2.0,(62)/12.0), 0xF);
_delay_ms(50);
stop_note(((double)261.6*3)*pow(2.0,(62)/12.0));
// play_note(((double)261.6*3)*pow(2.0,(62)/12.0), 0xF);
// _delay_ms(50);
// stop_note(((double)261.6*3)*pow(2.0,(62)/12.0));
play_note(((double)261.6*3)*pow(2.0,(64)/12.0), 0xF);
_delay_ms(50);
stop_note(((double)261.6*3)*pow(2.0,(64)/12.0));
// play_note(((double)261.6*3)*pow(2.0,(64)/12.0), 0xF);
// _delay_ms(50);
// stop_note(((double)261.6*3)*pow(2.0,(64)/12.0));
}
// void * matrix_scan_user(void) {
// if (layer_state & (1<<2)) {
// if (!playing_notes)
// play_notes(&start_up, 9, true);
// } else if (layer_state & (1<<3)) {
// if (!playing_notes)
// play_notes(&start_up, 9, true);
// } else {
// if (playing_notes)
// stop_all_notes();
// }
// }

147
quantum/beeps.c
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@ -11,8 +11,8 @@
#define PI 3.14159265
#define SAMPLE_DIVIDER 70
#define SAMPLE_RATE (2000000.0/SAMPLE_DIVIDER/256)
#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) {
@ -32,9 +32,31 @@ 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;
@ -89,30 +111,35 @@ void stop_note(double freq) {
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;
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
/* Enable the OC4A output */
DDRC |= _BV(PORTC6);
playing_notes = false;
}
int max = 0xFF;
float sum = 0;
int value = 128;
float place = 0;
ISR(TIMER3_COMPA_vect) {
// SINE
OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]);
// OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]);
// SQUARE
// if (((int)place) >= 1024){
@ -131,12 +158,84 @@ ISR(TIMER3_COMPA_vect) {
// OCR4A = 2048 - (int)place / 2;
// }
place += frequency;
if (place >= SINE_LENGTH)
place -= SINE_LENGTH;
// 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;
@ -161,12 +260,6 @@ void play_note(double freq, int vol) {
voices++;
}
TIMSK3 &= ~_BV(OCIE3A);
TCCR3A = 0x0;
TCCR3B = _BV(CS31) | _BV(WGM32);
OCR3A = SAMPLE_DIVIDER - 1;
TIMSK3 |= _BV(OCIE3A);
}

9
quantum/beeps.h
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@ -3,10 +3,13 @@
#include <avr/io.h>
#include <util/delay.h>
void note(int x, float length);
void beeps();
void true_note(float x, float y, float length);
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);
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