/*
 * board.c
 *
 * Created: 2014-11-25 08:29:26
 *  Author: bpa
 * initialization and ON/OFF functions for chip_mini_xmega board
 */ 
//leds init
#include <avr/io.h>
void leds_init()
{
	PORTB.DIRSET = PIN0_bm | PIN1_bm | PIN2_bm | PIN3_bm;
}


void led0(uint8_t mode) //mode=0 OFF led, mode=1 ON led, mode=2 toggle led
{
	if (mode==0)
		PORTB.OUTCLR = PIN0_bm;
	if (mode==1)
		PORTB.OUTSET = PIN0_bm;
	if (mode==2)
		PORTB.OUTTGL = PIN0_bm;
}
void led1(uint8_t mode) //mode=0 OFF led, mode=1 ON led, mode=2 toggle led
{
	if (mode==0)
		PORTB.OUTCLR = PIN1_bm;
	if (mode==1)
		PORTB.OUTSET = PIN1_bm;
	if (mode==2)
		PORTB.OUTTGL = PIN1_bm;
}
void led2(uint8_t mode) //mode=0 OFF led, mode=1 ON led, mode=2 toggle led
{
	if (mode==0)
		PORTB.OUTCLR = PIN2_bm;
	if (mode==1)
		PORTB.OUTSET = PIN2_bm;
	if (mode==2)
		PORTB.OUTTGL = PIN2_bm;
}
void led3(uint8_t mode) //mode=0 OFF led, mode=1 ON led, mode=2 toggle led
{
	if (mode==0)
		PORTB.OUTCLR = PIN3_bm;
	if (mode==1)
		PORTB.OUTSET = PIN3_bm;
	if (mode==2)
		PORTB.OUTTGL = PIN3_bm;
}

//pushbuttons init without IRQ
void pb_init()
{
	PORTC.DIRCLR = PIN0_bm | PIN1_bm | PIN2_bm | PIN3_bm;
	PORTCFG.MPCMASK = PIN0_bm | PIN1_bm | PIN2_bm | PIN3_bm;
	PORTC.PIN0CTRL = PORT_OPC_PULLUP_gc;
}
//pushbuttons init with IRQ
void pb_irq_init()
{
	PORTC.DIRCLR	=	PIN0_bm | PIN1_bm | PIN2_bm | PIN3_bm;
	PORTCFG.MPCMASK =	PIN0_bm | PIN1_bm | PIN2_bm | PIN3_bm;
	PORTC.PIN0CTRL	=	PORT_OPC_PULLUP_gc | PORT_ISC_BOTHEDGES_gc;//PORT_ISC_FALLING_gc;	// pins [0-3]  pullup and falling edge irq request
	
	PORTC.INT0MASK  =	PIN0_bm | PIN1_bm;							// pins [0-1] call INT0
	PORTC.INT1MASK  =	PIN2_bm | PIN3_bm;							// pins [2-3] call INT1
	PORTC.INTCTRL   =	PORT_INT0LVL_MED_gc |						// Medium level of INT0 irq
						PORT_INT1LVL_LO_gc;							// and low irq level for INT1 irq
}
uint8_t pb0_pressed() // returns 0 if not pressed, 1 if pressed
{
	if (PORTC.IN & PIN0_bm)
		return 0;
	else
		return 1;
}
uint8_t pb1_pressed() // returns 0 if not pressed, 1 if pressed
{
	if (PORTC.IN & PIN1_bm)
		return 0;
	else
		return 1;
}
uint8_t pb2_pressed() // returns 0 if not pressed, 1 if pressed
{
	if (PORTC.IN & PIN2_bm)
		return 0;
	else
		return 1;
}
int8_t pb3_pressed() // returns 0 if not pressed, 1 if pressed
{
	if (PORTC.IN & PIN3_bm)
		return 0;
	else
		return 1;
}