/*
 * "Hello World" example.
 *
 * This example prints 'Hello from Nios II' to the STDOUT stream. It runs on
 * the Nios II 'standard', 'full_featured', 'fast', and 'low_cost' example
 * designs. It runs with or without the MicroC/OS-II RTOS and requires a STDOUT
 * device in your system's hardware.
 * The memory footprint of this hosted application is ~69 kbytes by default
 * using the standard reference design.
 *
 * For a reduced footprint version of this template, and an explanation of how
 * to reduce the memory footprint for a given application, see the
 * "small_hello_world" template.
 *
 */

#include <stdio.h>
#include <io.h>
#include <system.h>
#include "alt_types.h"
#include "altera_avalon_pio_regs.h"
#include "sys/alt_irq.h"
//#include "sys/alt_timestamp.h"
#include <unistd.h>
#include "definition.h"

struct interrupt_data
{
	volatile int * leds_addr;
	volatile int * hex_addr;
	volatile int * sw_addr;
};

static void handle_sliders_interrupt(struct interrupt_data * data)
{
    int sw = IORD(data->sw_addr,0);
    IOWR(data->leds_addr,0,sw);
}


int main()
{
	volatile int *sliders = (int*) SW_SLIDERS_BASE;
		volatile int *leds = (int*) LEDS_BASE;
	  struct interrupt_data data;

	  data.leds_addr = leds;
	  data.sw_addr = sliders;
	  IOWR_ALTERA_AVALON_PIO_IRQ_MASK(SW_SLIDERS_BASE,0xf);

	  alt_ic_isr_register(SW_SLIDERS_IRQ_INTERRUPT_CONTROLLER_ID, SW_SLIDERS_IRQ ,handle_sliders_interrupt,&data, 0x0);


	  alt_ic_irq_enable(SW_SLIDERS_IRQ_INTERRUPT_CONTROLLER_ID, SW_SLIDERS_IRQ);

	  printf("Hello from Nios II!\n");

	  while(1);

  return 0;
}