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-rw-r--r--keyboard/preonic/beeps.c246
1 files changed, 0 insertions, 246 deletions
diff --git a/keyboard/preonic/beeps.c b/keyboard/preonic/beeps.c
deleted file mode 100644
index 8ffd70f417..0000000000
--- a/keyboard/preonic/beeps.c
+++ /dev/null
@@ -1,246 +0,0 @@
-#include "beeps.h"
-#include <math.h>
-#include <avr/pgmspace.h>
-#include <avr/interrupt.h>
-#include <avr/io.h>
-
-#define PI 3.14159265
-
-void delay_us(int count) {
- while(count--) {
- _delay_us(1);
- }
-}
-
-int voices = 0;
-double frequency = 0;
-int volume = 0;
-int 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
-
-
-void beeps() {
- play_notes();
-}
-
-void send_freq(double freq, int vol) {
- int duty = (((double)F_CPU) / freq);
- ICR3 = duty; // Set max to the period
- OCR3A = duty >> (0x10 - vol); // Set compare to half the period
-}
-
-void stop_all_notes() {
- voices = 0;
- TCCR3A = 0;
- TCCR3B = 0;
- frequency = 0;
- volume = 0;
-
- for (int i = 0; i < 8; i++) {
- frequencies[i] = 0;
- volumes[i] = 0;
- }
-}
-
-void stop_note(double freq) {
- 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) {
- TCCR3A = 0;
- TCCR3B = 0;
- frequency = 0;
- volume = 0;
- } else {
- double freq = frequencies[voices - 1];
- int vol = volumes[voices - 1];
- if (frequency < freq) {
- sliding = true;
- for (double f = frequency; f <= freq; f += ((freq - frequency) / 500.0)) {
- send_freq(f, vol);
- }
- sliding = false;
- } else if (frequency > freq) {
- sliding = true;
- for (double f = frequency; f >= freq; f -= ((frequency - freq) / 500.0)) {
- send_freq(f, vol);
- }
- sliding = false;
- }
- send_freq(freq, vol);
- frequency = freq;
- volume = vol;
- }
-}
-
-void init_notes() {
- // TCCR1A = (1 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (1 << WGM10);
- // TCCR1B = (1 << COM1B1) | (0 << COM1A0) | (1 << WGM13) | (1 << WGM12) | (0 << CS12) | (0 << CS11) | (1 << CS10);
-
- // DDRC |= (1<<6);
-
- // TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
- // TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
-
- // ICR3 = 0xFFFF;
- // OCR3A = (int)((float)wave[i]*ICR3/RANGE); //go to next array element
-
-
- // cli();
-
- // /* Enable interrupt on timer2 == 127, with clk/8 prescaler. At 16MHz,
- // this gives a timer interrupt at 15625Hz. */
- // TIMSK3 = (1 << OCIE3A);
-
- // /* clear/reset timer on match */
- // // TCCR3A = 1<<WGM31 | 0<<WGM30; CTC mode, reset on match
- // // TCCR3B = 0<<CS32 | 1<<CS31 | 0<<CS30; /* clk, /8 prescaler */
-
- // TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
- // TCCR3B = (0 << WGM33) | (0 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
-
-
- // TCCR1A = (1 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (0 << WGM10);
- // TCCR1B = (1 << WGM12) | (0 << CS12) | (0 << CS11) | (1 << CS10);
- // // SPCR = 0x50;
- // // SPSR = 0x01;
- // DDRC |= (1<<6);
- // // ICR3 = 0xFFFF;
- // // OCR3A=80;
- // PORTC |= (1<<6);
-
- // sei();
-}
-
-// #define highByte(c) ((c >> 8) & 0x00FF)
-// #define lowByte(c) (c & 0x00FF)
-
-ISR(TIMER3_COMPA_vect) {
-
- if (ICR3 > 0 && !sliding) {
- switch (position) {
- case 0: {
- int duty = (((double)F_CPU) / (frequency));
- ICR3 = duty; // Set max to the period
- OCR3A = duty >> 1; // Set compare to half the period
- break;
- }
- case 1: {
- int duty = (((double)F_CPU) / (frequency*2));
- ICR3 = duty; // Set max to the period
- OCR3A = duty >> 1; // Set compare to half the period
- break;
- }
- case 2: {
- int duty = (((double)F_CPU) / (frequency*3));
- ICR3 = duty; // Set max to the period
- OCR3A = duty >> 1; // Set compare to half the period
- break;
- }
- }
- position = (position + 1) % 3;
- }
-// /* OCR2A has been cleared, per TCCR2A above */
-// // OCR3A = 127;
-
-// // pos1 += incr1;
-// // pos2 += incr2;
-// // pos3 += incr3;
-
-// // sample = sinewave[highByte(pos1)] + sinewave[highByte(pos2)] + sinewave[highByte(pos3)];
-
-// // OCR3A = sample;
-
-
-// OCR3A=pgm_read_byte(&sinewave[pos1]);
-// pos1++;
-// // PORTC &= ~(1<<6);
-
-// /* buffered, 1x gain, active mode */
-// // SPDR = highByte(sample) | 0x70;
-// // while (!(SPSR & (1<<SPIF)));
-
-// // SPDR = lowByte(sample);
-// // while (!(SPSR & (1<<SPIF)));
-
-// // PORTC |= (1<<6);
-}
-
-void play_note(double freq, int vol) {
-
- if (freq > 0) {
- DDRC |= (1<<6);
-
- TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
- TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
-
- if (frequency != 0) {
- if (frequency < freq) {
- for (double f = frequency; f <= freq; f += ((freq - frequency) / 500.0)) {
- send_freq(f, vol);
- }
- } else if (frequency > freq) {
- for (double f = frequency; f >= freq; f -= ((frequency - freq) / 500.0)) {
- send_freq(f, vol);
- }
- }
- }
- send_freq(freq, vol);
- frequency = freq;
- volume = vol;
-
- frequencies[voices] = frequency;
- volumes[voices] = volume;
- voices++;
- }
- // ICR3 = 0xFFFF;
- // for (int i = 0; i < 10000; i++) {
- // OCR3A = round((sin(i*freq)*.5)+.5)*0xFFFF;
- // // _delay_us(50);
- // }
-
- // TCCR3A = 0;
- // TCCR3B = 0;
-}
-
-// void note(int x, float length) {
-// DDRC |= (1<<6);
-// int t = (int)(440*pow(2,-x/12.0)); // starting note
-// for (int y = 0; y < length*1000/t; y++) { // note length
-// PORTC |= (1<<6);
-// delay_us(t);
-// PORTC &= ~(1<<6);
-// delay_us(t);
-// }
-// PORTC &= ~(1<<6);
-// }
-
-// void true_note(float x, float y, float length) {
-// for (uint32_t i = 0; i < length * 50; i++) {
-// uint32_t v = (uint32_t) (round(sin(PI*2*i*640000*pow(2, x/12.0))*.5+1 + sin(PI*2*i*640000*pow(2, y/12.0))*.5+1) / 2 * pow(2, 8));
-// for (int u = 0; u < 8; u++) {
-// if (v & (1 << u) && !(PORTC&(1<<6)))
-// PORTC |= (1<<6);
-// else if (PORTC&(1<<6))
-// PORTC &= ~(1<<6);
-// }
-// }
-// PORTC &= ~(1<<6);
-// } \ No newline at end of file
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