/*
 * main.c
 *
 *  Created on: 26-05-2013
 *      Author: miszczo
 */




#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
#include <avr/eeprom.h>

#define TIME 10
#define FRTIME 200
#define UP  1
#define DOWN 0
#define RED  2
#define BLUE  0
#define GREEN  1

volatile uint8_t kolory[4];

volatile uint8_t mode;

void normal_sequence(void);
void random_sequence(void);
uint32_t get_random(void);
void full_rand_seq(void);
void bright (uint8_t kolor );


const uint8_t pwm_val[256] PROGMEM = {0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3,
        3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6,
        6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 12,
        12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 16, 16, 16, 17, 17, 17, 18, 18, 19, 19, 20, 20,
        20, 21, 21, 22, 22, 23, 23, 24, 25, 25, 26, 26, 27, 27, 28, 29, 29, 30, 31, 31, 32, 33, 34, 34,
        35, 36, 37, 38, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 54, 55, 56, 57, 59,
        60, 61, 63, 64, 65, 67, 68, 70, 71, 73, 75, 76, 78, 80, 82, 83, 85, 87, 89, 91, 93, 95, 97, 100,
        102, 104, 106, 109, 111, 114, 116, 119, 122, 124, 127, 130, 133, 136, 139, 142, 145, 148, 152,
        155, 158, 162, 166, 169, 173, 177, 181, 185, 189, 193, 197, 202, 206, 211, 216, 220, 225, 230,
        236, 241, 246, 255, 255};

int main(void)
{


    // wybór kanału dla adc ADC3 = PB3
    ADMUX = (1<<MUX0) | (1<<MUX1);

    PORTB = 0x00;
    // ustawienia portow
    DDRB |= (1<<PB0) | (1<<PB1) | (1<<PB2) ;


    //konfiguracja timera
    TCCR0B |= (1<<CS00);        //preskaler 1
    TIMSK0 |= (1<<TOIE0);       //zezwolenie na przerwanie przy przepelnieniu

    sei();


    while(1)
    {
        mode = 2;
        if(mode == 0)   full_rand_seq();
        else if(mode == 1) normal_sequence();
        else if(mode == 2) random_sequence();
        //normal_sequence();
    }


}




/**************tutaj będzie migac jak pojebana************************/

void full_rand_seq(void)
{
    uint32_t a;
    a = get_random();
    kolory[0] = a;
    kolory[1] = (a>>8);
    kolory[2] = (a>>16);
    _delay_ms(FRTIME);

}


/***********tu bedzie losowo w góre i w dol************************/
void  random_sequence(void)
{
    uint8_t y;
    y = get_random();


        if(((y & 0x01) == 0) && (kolory[0] > 0)) kolory[0]--;
        if(((y & 0x01) == 1) && (kolory[0] < 255)) kolory[0]++;

        if((((y>>2) & 0x01) == 0) && (kolory[1] > 0)) kolory[1]--;
        if((((y>>2) & 0x01) == 1) && (kolory[1] < 255)) kolory[1]++;

        if((((y>>4) & 0x01) == 0) && (kolory[2] > 0)) kolory[2]--;
        if((((y>>4) & 0x01) == 1) && (kolory[2] < 255)) kolory[2]++;

        _delay_ms(TIME);



}

void second_random(void)
{
    uint8_t a;

    a = get_random();


}


void normal_sequence(void)
{
    kolory[0] = 0;
    kolory[1] = 0;
    kolory[2] = 0;


    bright(BLUE);
    bright(GREEN);
    bright(BLUE);
    bright(RED);
    bright(BLUE);
    bright(GREEN);
    bright(BLUE);
    bright(RED);


}

void bright(uint8_t kolor)
{
    int z;


    if(kolory[kolor] == 0)
    {
        for(z = 0; z<255; z++)
        {
            kolory[kolor] = pgm_read_byte(&pwm_val[z]);

            _delay_ms(TIME);
        }
    }
    else if(kolory[kolor] == 255)
    {
        for(z = 0; z<255; z++)
        {
            kolory[kolor] = pgm_read_byte(&pwm_val[255-z]);
            _delay_ms(TIME);
        }

    }

}






uint32_t get_random(void)
{
    uint32_t wartosc = 0 ;
    uint8_t i;

    for(i = 0;i<24;i++)
    {
        //ustawienia adc, adc enable , preskaler 64 , start conversion
        ADCSRA = (1<<ADEN) | (1<<ADPS0) | (1<<ADPS1) | (1<<ADSC);
        while(ADCSRA&(1<<ADSC));        //wait for end conversion

        wartosc = (wartosc<<1);
        wartosc |= (ADCW & 0x01);
    }

    return wartosc;
}






ISR ( TIM0_OVF_vect )
{
    static uint8_t licznik;


    if(licznik>=kolory[0]) PORTB |= (1<<PB0); else PORTB &= ~(1<<PB0);
    if(licznik>=kolory[1]) PORTB |= (1<<PB1); else PORTB &= ~(1<<PB1);
    if(licznik>=kolory[2]) PORTB |= (1<<PB2); else PORTB &= ~(1<<PB2);

    licznik++;
}