/*
 * lcd.c
 *
 *  Created on: Nov 4, 2019
 *      Author: Student_CLL
 */

#include "lcd.h"

void init_lcd()
{
    setPort(&DDRC, 0xff);
    setPort(&DDRB, 0xff);
    for(int i=0;i<4;i++)
        CommandLCD(0x38);
    CommandLCD(0x08);
    CommandLCD(0x01);
    CommandLCD(0x06);
    CommandLCD(0x0E);
}

void CommandLCD(uint8_t comm)
{

    setPort(&PORTB, 0b00000001);
    _delay_ms(5);
    setPort(&PORTC, comm);
    _delay_ms(5);
    setPort(&PORTB, 0x00);
    _delay_ms(5);
}

void WriteLCD(uint8_t caracter)
{
    setPort(&PORTB, 0b00000011);
    _delay_ms(5);
    setPort(&PORTC, caracter);
    _delay_ms(5);
    setPort(&PORTB, 0x00);
    _delay_ms(5);
}

void PlaceCursor(uint8_t poz, uint8_t lin)
{
    uint8_t pozitie = 0x80;
    pozitie |= poz;
    pozitie |= (lin-1)<<6;
    CommandLCD(pozitie);
}

void ClearLCD()
{
    CommandLCD(0x01);
}

void afisare_string(char sir[], uint8_t col, uint8_t lin)
{
    if(strlen(sir) + col > 15)
        PlaceCursor(col-strlen(sir)+1, lin);
    else
        PlaceCursor(col, lin);
    for(int i=0; sir[i] != '\0'; i++)
        WriteLCD(sir[i]);
}

void problema2()
{
    afisare_string("am",0,1);
    afisare_string("afisat",15,1);
    afisare_string("un",0,2);
    afisare_string("text",15,2);
}

void problema3()
{
    for(int i = 0; i<10;i++)
    {
        PlaceCursor(0,1);
        WriteLCD(i+'0');
        PlaceCursor(2,1);
        WriteLCD(i+'0');
        PlaceCursor(1,2);
        WriteLCD(i+'0');
        PlaceCursor(3,2);
        WriteLCD(i+'0');
        _delay_ms(1000);
    }
}

void problema4()
{
    uint8_t ora = 0;
    uint8_t minut = 0;
}

void scade_ora(uint8_t *ora)
{
    (*ora)--;
    if(*ora<0)
        *ora = 23;
}

void creste_ora(uint8_t *ora)
{
    (*ora)++;
    if(*ora>23)
        *ora = 0;
}

void scade_minut(uint8_t *ora, uint8_t *minut)
{
    (*minut)--;
    if(*minut<0)
    {
        *minut = 59;
        scade_ora(ora);
    }
}

void creste_minut(uint8_t *ora, uint8_t *minut)
{
    (*minut)++;
    if(*minut>59)
    {
        *minut = 0;
        creste_ora(ora);
    }
}