[moodlight.git] / ircontrol.c

/* $Id: ircontrol.c,v 1.1 2010/06/26 19:08:18 simimeie Exp $
 * Functions for the infrared receiver
 *
 * The infrared receiver is connected to PB0 / PCINT0.
 */

#include <avr/io.h>
#include <avr/interrupt.h>
#include "ircontrol.h"
#include "console.h"

ISR(PCINT0_vect) {
  uint8_t v = PINB & _BV(PB0);
  if (v) {
    console_printpgm_P(PSTR("!1!"));
  } else {
    console_printpgm_P(PSTR("!0!"));
  }
}

void ircontrol_init(void)
{
  /* Activate pullup */
  PORTB |= _BV(PB0);
  /* enable PCINT0 */
  PCICR |= _BV(PCIE0);
  /* Enable pin change interrupt 0 (=PB0) in pcint0 */
  PCMSK0 |= _BV(PCINT0);
}
Commit	Line	Data
17aea8ef	1	/* $Id: ircontrol.c,v 1.1 2010/06/26 19:08:18 simimeie Exp $
	2	* Functions for the infrared receiver
	3	*
	4	* The infrared receiver is connected to PB0 / PCINT0.
	5	*/
	6
	7	#include <avr/io.h>
	8	#include <avr/interrupt.h>
	9	#include "ircontrol.h"
	10	#include "console.h"
	11
	12	ISR(PCINT0_vect) {
	13	uint8_t v = PINB & _BV(PB0);
	14	if (v) {
	15	console_printpgm_P(PSTR("!1!"));
	16	} else {
	17	console_printpgm_P(PSTR("!0!"));
	18	}
	19	}
	20
	21	void ircontrol_init(void)
	22	{
	23	/* Activate pullup */
	24	PORTB \|= _BV(PB0);
	25	/* enable PCINT0 */
	26	PCICR \|= _BV(PCIE0);
	27	/* Enable pin change interrupt 0 (=PB0) in pcint0 */
	28	PCMSK0 \|= _BV(PCINT0);
	29	}