rc433/recv.c

/*****************************************************************************
 * Copyright (C) 2014
 *   
 * Michiel Broek <mbroek at mbse dot eu>
 *
 * This file is part of the mbsePi-apps
 *
 * This 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, or (at your option) any
 * later version.
 *
 * mbsePi-apps 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 EC-65K; see the file COPYING.  If not, write to the Free
 * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *****************************************************************************/

#include "rc433.h"


#ifdef HAVE_WIRINGPI_H

int main(int argc, char *argv[]) {
    
    /*
     input PIN is hardcoded for testing purposes
     see https://projects.drogon.net/raspberry-pi/wiringpi/pins/
     for pin mapping of the raspberry pi GPIO connector
     */
    int PIN = 2;
    
    if (wiringPiSetup () )
	return 1;

    enableReceiveIRQ(PIN);
    
    while (1) {
	if (available()) {
		         
	    unsigned long int value = getReceivedValue();
	    int bitlen = getReceivedBitlength();
			     
	    if (value == 0) {
		printf("Unknown encoding\n");
	    } else {
		if (bitlen == 24) {
		    printf("Received 0x%06lx/24 bit %s Protocol: %d", value, dec2binWzerofill(value, bitlen), getReceivedProtocol() );
		    if ((value & 0x00000000000003f0) == 0x0000000000000150) {
			printf(" Type A ");
			printf("%c%c%c%c%c ", (value & 0xc00000) ? '0' : '1', (value & 0x300000) ? '0' : '1', (value & 0x0c0000) ? '0' : '1', (value & 0x030000) ? '0' : '1', (value & 0x00c000) ? '0' : '1');
			printf("%c%c%c%c%c ", (value & 0x003000) ? '0' : '1', (value & 0x000c00) ? '0' : '1', (value & 0x000300) ? '0' : '1', (value & 0x0000c0) ? '0' : '1', (value & 0x000030) ? '0' : '1');
		    }
		    if ((value & 0x000000000000001c) == 0x0000000000000000) {
			printf(" Type E");
		    }
		    printf("\n");
		} else {
		    printf("Received 0x%lx/%d bit %s Protocol: %d\n", value, bitlen, dec2binWzerofill(value, bitlen), getReceivedProtocol() );
		}
	    }

	    resetAvailable();
	} else {
	   /*
	    * Don't hog the CPU.
	    */
	   delay(10);
	}
    }

    return 0;
}

#else

int main(int argc, char *argv[]) {
    fprintf(stderr, "This program does nothing without the wiringPi library\n");
    return 0;
}

#endif