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author | Jack Humbert <jack.humb@gmail.com> | 2016-03-30 00:43:07 -0400 |
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committer | Jack Humbert <jack.humb@gmail.com> | 2016-03-30 00:43:07 -0400 |
commit | ac0729787ff0e8d1bd1202a28f5edf9125c00b0c (patch) | |
tree | cc1e5accb3738ef6c0809a00c4fa18980fa189cb /keyboard/preonic/beeps.c | |
parent | cadd9015dd420cb880d9086fa29e0176fb16cf4d (diff) |
preonic update
Diffstat (limited to 'keyboard/preonic/beeps.c')
-rw-r--r-- | keyboard/preonic/beeps.c | 246 |
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); -// }
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