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-rw-r--r--keyboard/preonic/beeps.c386
1 files changed, 197 insertions, 189 deletions
diff --git a/keyboard/preonic/beeps.c b/keyboard/preonic/beeps.c
index 13e46e1daf..8ffd70f417 100644
--- a/keyboard/preonic/beeps.c
+++ b/keyboard/preonic/beeps.c
@@ -5,31 +5,6 @@
#include <avr/io.h>
#define PI 3.14159265
-#define CHANNEL OCR1C
-
-volatile uint16_t sample;
-uint16_t lastSample;
-
-const int sounddata_length=200;
-
-const unsigned char sounddata_data[] PROGMEM = {128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
-128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 129, 127, 129, 128, 127, 133,
-117, 109, 125, 121, 116, 132, 140, 126, 114, 114, 116, 120, 114, 93, 73, 66, 76, 116, 142, 129,
-128, 129, 120, 119, 118, 104, 87, 123, 181, 194, 196, 198, 189, 176, 160, 162, 172, 164, 164, 183,
-197, 188, 168, 167, 170, 165, 185, 209, 206, 196, 196, 199, 185, 162, 156, 167, 176, 173, 170, 166,
-151, 142, 140, 134, 130, 127, 113, 86, 67, 66, 69, 75, 73, 75, 86, 90, 91, 84, 65, 48,
-41, 30, 26, 56, 91, 88, 72, 70, 73, 82, 89, 73, 57, 60, 74, 89, 92, 77, 63, 60,
-53, 47, 56, 64, 63, 61, 56, 54, 52, 36, 16, 22, 51, 66, 67, 70, 76, 88, 99, 92,
-77, 74, 85, 100, 106, 97, 83, 85, 96, 108, 133, 160, 164};
void delay_us(int count) {
while(count--) {
@@ -37,202 +12,235 @@ void delay_us(int count) {
}
}
-void beeps() {
- // DDRB |= (1<<7);
- // PORTB &= ~(1<<7);
-
- // // Use full 16-bit resolution.
- // ICR1 = 0xFFFF;
-
- // // I could write a wall of text here to explain... but TL;DW
- // // Go read the ATmega32u4 datasheet.
- // // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
-
- // // Pin PB7 = OCR1C (Timer 1, Channel C)
- // // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
- // // (i.e. start high, go low when counter matches.)
- // // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
- // // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
-
- // TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
- // TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
-
-
- // // Turn off PWM control on PB7, revert to output low.
- // // TCCR1A &= ~(_BV(COM1C1));
- // // CHANNEL = ((1 << level) - 1);
-
- // // Turn on PWM control of PB7
- // TCCR1A |= _BV(COM1C1);
- // // CHANNEL = level << OFFSET | 0x0FFF;
- // // CHANNEL = 0b1010101010101010;
-
- // float x = 12;
- // float y = 24;
- // float length = 50;
- // float scale = 1;
-
- // // int f1 = 1000000/440;
- // // int f2 = 1000000/880;
- // // for (uint32_t i = 0; i < length * 1000; i++) {
- // // // int frequency = 1/((sin(PI*2*i*scale*pow(2, x/12.0))*.5+1 + sin(PI*2*i*scale*pow(2, y/12.0))*.5+1) / 2);
-
- // // ICR1 = f1; // Set max to the period
- // // OCR1C = f1 >> 1; // Set compare to half the period
- // // // _delay_us(10);
- // // }
- // int frequency = 1000000/440;
- // ICR1 = frequency; // Set max to the period
- // OCR1C = frequency >> 1; // Set compare to half the period
- // _delay_us(500000);
-
- // TCCR1A &= ~(_BV(COM1C1));
- // CHANNEL = 0;
-play_notes();
-
-
- // play_note(55*pow(2, 0/12.0), 1);
- // play_note(55*pow(2, 12/12.0), 1);
- // play_note(55*pow(2, 24/12.0), 1);
- // play_note(55*pow(2, 0/12.0), 1);
- // play_note(55*pow(2, 12/12.0), 1);
- // play_note(55*pow(2, 24/12.0), 1);
-
- // play_note(0, 4);
-
- // play_note(55*pow(2, 0/12.0), 8);
- // play_note(55*pow(2, 12/12.0), 4);
- // play_note(55*pow(2, 10/12.0), 4);
- // play_note(55*pow(2, 12/12.0), 8);
- // play_note(55*pow(2, 10/12.0), 4);
- // play_note(55*pow(2, 7/12.0), 2);
- // play_note(55*pow(2, 8/12.0), 2);
- // play_note(55*pow(2, 7/12.0), 16);
- // play_note(0, 4);
- // play_note(55*pow(2, 3/12.0), 8);
- // play_note(55*pow(2, 5/12.0), 4);
- // play_note(55*pow(2, 7/12.0), 4);
- // play_note(55*pow(2, 7/12.0), 8);
- // play_note(55*pow(2, 5/12.0), 4);
- // play_note(55*pow(2, 3/12.0), 4);
- // play_note(55*pow(2, 2/12.0), 16);
+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 play_note(float freq, int length) {
- DDRB |= (1<<7);
- PORTB &= ~(1<<7);
+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
+}
- if (freq > 0) {
- int frequency = 1000000/freq;
- ICR1 = frequency; // Set max to the period
- OCR1C = frequency >> 1; // Set compare to half the period
+void stop_all_notes() {
+ voices = 0;
+ TCCR3A = 0;
+ TCCR3B = 0;
+ frequency = 0;
+ volume = 0;
- TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
- TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
+ for (int i = 0; i < 8; i++) {
+ frequencies[i] = 0;
+ volumes[i] = 0;
}
-
- for (int i = 0; i < length; i++) {
- _delay_us(50000);
- }
-
- TCCR1A &= ~(_BV(COM1C1));
}
-// This is called at 8000 Hz to load the next sample.
-ISR(TIMER1_COMPA_vect) {
- if (sample >= sounddata_length) {
- if (sample == sounddata_length + lastSample) {
- TIMSK1 &= ~_BV(OCIE1A);
-
- // Disable the per-sample timer completely.
- TCCR1B &= ~_BV(CS10);
- }
- else {
- OCR1C = sounddata_length + lastSample - sample;
+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;
+ }
}
}
- else {
- OCR1C = pgm_read_byte(&sounddata_data[sample]);
+ 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;
}
-
- ++sample;
}
-void play_notes() {
+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);
- // Set up Timer 2 to do pulse width modulation on the speaker
- // pin.
+ // TCCR3A = (1 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
+ // TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (0 << CS31) | (1 << CS30);
- DDRB |= (1<<7);
- PORTB &= ~(1<<7);
+ // ICR3 = 0xFFFF;
+ // OCR3A = (int)((float)wave[i]*ICR3/RANGE); //go to next array element
- // Use internal clock (datasheet p.160)
- // ASSR &= ~(_BV(EXCLK) | _BV(AS2));
- // Set fast PWM mode (p.157)
- TCCR1A |= _BV(WGM21) | _BV(WGM20);
- TCCR1B &= ~_BV(WGM22);
+ // cli();
- // Do non-inverting PWM on pin OC2A (p.155)
- // On the Arduino this is pin 11.
- TCCR1A = (TCCR2A | _BV(COM2A1)) & ~_BV(COM2A0);
- TCCR1A &= ~(_BV(COM2B1) | _BV(COM2B0));
- // No prescaler (p.158)
- TCCR1B = (TCCR1B & ~(_BV(CS12) | _BV(CS11))) | _BV(CS10);
+ // /* Enable interrupt on timer2 == 127, with clk/8 prescaler. At 16MHz,
+ // this gives a timer interrupt at 15625Hz. */
+ // TIMSK3 = (1 << OCIE3A);
- // Set initial pulse width to the first sample.
- OCR1A = pgm_read_byte(&sounddata_data[0]);
+ // /* 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);
- cli();
+ // 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)];
- // Set CTC mode (Clear Timer on Compare Match) (p.133)
- // Have to set OCR1A *after*, otherwise it gets reset to 0!
- TCCR2B = (TCCR2B & ~_BV(WGM13)) | _BV(WGM12);
- TCCR2A = TCCR2A & ~(_BV(WGM11) | _BV(WGM10));
+// // OCR3A = sample;
- // No prescaler (p.134)
- TCCR2B = (TCCR2B & ~(_BV(CS12) | _BV(CS11))) | _BV(CS10);
- // Set the compare register (OCR1A).
- // OCR1A is a 16-bit register, so we have to do this with
- // interrupts disabled to be safe.
- // OCR2A = F_CPU / SAMPLE_RATE; // 16e6 / 8000 = 2000
- OCR2A = 2000;
+// OCR3A=pgm_read_byte(&sinewave[pos1]);
+// pos1++;
+// // PORTC &= ~(1<<6);
- // Enable interrupt when TCNT1 == OCR1A (p.136)
- TIMSK1 |= _BV(OCIE2A);
+// /* buffered, 1x gain, active mode */
+// // SPDR = highByte(sample) | 0x70;
+// // while (!(SPSR & (1<<SPIF)));
- sample = 0;
- sei();
+// // SPDR = lowByte(sample);
+// // while (!(SPSR & (1<<SPIF)));
+
+// // PORTC |= (1<<6);
}
-void note(int x, float length) {
- DDRB |= (1<<1);
- int t = (int)(440*pow(2,-x/12.0)); // starting note
- for (int y = 0; y < length*1000/t; y++) { // note length
- PORTB |= (1<<1);
- delay_us(t);
- PORTB &= ~(1<<1);
- delay_us(t);
+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++;
}
- PORTB &= ~(1<<1);
+ // 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 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) && !(PORTB&(1<<1)))
- PORTB |= (1<<1);
- else if (PORTB&(1<<1))
- PORTB &= ~(1<<1);
- }
- }
- PORTB &= ~(1<<1);
-} \ No newline at end of file
+// 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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