#include <avr/io.h>
#include <util/delay.h>

// Macro
#define BEEPON 127
#define BEEPOFF 0
#define TRUE 1
#define FALSE 0
#define STDBEEP OCR1B = BEEPON; _delay_ms(500); OCR1B=BEEPOFF;


static void init(void);

int main(void)
{
    init();
    int done = FALSE;
    while(1)
    {
        if(PINB & 0x02)
        {
            while (!done)
            {
                STDBEEP;
                _delay_ms(1000);

                STDBEEP;
                _delay_ms(750);

                STDBEEP;
                _delay_ms(500);

                STDBEEP;
                _delay_ms(250);

                STDBEEP;
                _delay_ms(100);

                STDBEEP;
                _delay_ms(100);

                STDBEEP;
                _delay_ms(50);

                STDBEEP;
                _delay_ms(25);

                // Last beep
                OCR1B = BEEPON;
                _delay_ms(1000);
                OCR1B = BEEPOFF;
                done = TRUE;
            }
        }
    }
    return 1;
}

static void init(void)
{
    // Data Direction
    // PB1(Pin 6): PWM Output
    // PB2(Pin 7): Button Input
    DDRB = 0x01;
    //PINB = 0x02;
    PORTB = 0x00;

    // PWM Setup
    //TCCR1 = 0x58;
    //PLLCSR = 0x82;
    //GTCCR = 0x00;
    //PLLCSR |= 0x01;
    TCCR0A = _BV(WGM00) | _BV(COM0A1) | _BV(COM0B1);
    TCCR0B |= _BV(CS01);

}