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/* ascenseur.c */
/* n.avr.carte_capteurs - AVR Carte_capteur Module. {{{
 * 
 * Copyright (C) 2005 Dalmais Romain
 *    
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * 
 * Contact :
 * Web: http://perso.efrei.fr/~dalmais
 * Email: <dalmais@efrei.fr>
 *  }}} */

#include "ascenseur.h"


/* +AutoDec */
/* -AutoDec */

extern uint8_t clk ;	// clock de la machine d'�tat.
uint8_t sens_ascenseur = 0;

void ascenseur_init()
{
	sens_ascenseur = 0;
	TCCR2 = 0x0C ; // mode CTC | pas de OC2 | prescaler = 128
	

}

void asc_haut(uint8_t valeur)
{
	TCNT2 = valeur;
	sens_ascenseur = MONTE;
	
}

void asc_bas(uint8_t valeur)
{
	TCNT2 = valeur;
	sens_ascenseur = DESCEND;
	
}

void asc_stable(uint8_t valeur)
{
	TCNT2 = valeur;
	sens_ascenseur = MONTE;

}


uint8_t capteur_bas()
{
return (PORTA & _BV(CAPTEUR_BAS)) ;
}

uint8_t capteur_haut()
{
return (PORTA & _BV(CAPTEUR_HAUT)) ;
}


uint8_t capteur_milieu()
{
return (PORTA & _BV(CAPTEUR_MILIEU)) ;
}