contiki/examples/sensinode/broadcast-rime.c

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2012-03-05 16:28:06 +00:00
/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: example-broadcast.c,v 1.2 2009/11/19 17:29:41 nifi Exp $
*/
/**
* \file
* Testing the broadcast layer in Rime
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "net/rime.h"
#include "lib/random.h"
#include "net/rime/rimestats.h"
#include "dev/leds.h"
#include "dev/models.h"
#define DEBUG 1
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif
#define BROADCAST_CHANNEL 129
/*---------------------------------------------------------------------------*/
PROCESS(example_broadcast_process, "BROADCAST example");
AUTOSTART_PROCESSES(&example_broadcast_process);
/*---------------------------------------------------------------------------*/
static void broadcast_recv(struct broadcast_conn *c, const rimeaddr_t *from)
{
leds_toggle(LEDS_RED);
PRINTF("broadcast message received from %02x.%02x\n", from->u8[0], from->u8[1]);
PRINTF("Size=0x%02x: '0x%04x'\n", packetbuf_datalen(), *(uint16_t *) packetbuf_dataptr());
}
static void print_rime_stats()
{
PRINTF("\nNetwork Stats\n");
PRINTF(" TX=%lu , RX=%lu\n", rimestats.tx, rimestats.rx);
PRINTF("LL-TX=%lu , LL-RX=%lu\n", rimestats.lltx, rimestats.llrx);
PRINTF(" Long=%lu , Short=%lu\n", rimestats.toolong, rimestats.tooshort);
PRINTF("T/Out=%lu , CCA-Err=%lu\n", rimestats.timedout,
rimestats.contentiondrop);
}
static const struct broadcast_callbacks bc_rx = { broadcast_recv };
static struct broadcast_conn broadcast;
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(example_broadcast_process, ev, data)
{
static struct etimer et;
static uint16_t counter;
PROCESS_EXITHANDLER(broadcast_close(&broadcast);)
PROCESS_BEGIN();
PRINTF("Start\n");
broadcast_open(&broadcast, BROADCAST_CHANNEL, &bc_rx);
PRINTF("Open Broadcast Connection, channel %u\n", BROADCAST_CHANNEL);
// leds_off(LEDS_ALL);
while(1) {
/* Delay 2-4 seconds */
etimer_set(&et, CLOCK_SECOND * 2);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
leds_on(LEDS_GREEN);
packetbuf_copyfrom(&counter, sizeof(counter));
PRINTF("Sending %u bytes: 0x%04x\n", packetbuf_datalen(), *(uint16_t *) packetbuf_dataptr());
if (broadcast_send(&broadcast) == 0) {
PRINTF("Error Sending\n");
}
print_rime_stats();
PRINTF("===================================\n");
counter++;
leds_off(LEDS_GREEN);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/