osd-contiki/examples/jn516x/rpl/node/node.c

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/*
* Copyright (c) 2015, SICS Swedish ICT.
* 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.
*
*/
/**
* \file
* A RPL node able to act as either DAG Root (6dr) or simple node (6ln).
* Press use button at startup to configure.
*
* \author Simon Duquennoy <simonduq@sics.se>
*/
#include "contiki.h"
#include "net/ipv6/uip-ds6.h"
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#include "net/rpl/rpl.h"
#include "tools/rpl-tools.h"
#define DEBUG DEBUG_PRINT
#include "net/ip/uip-debug.h"
#define CONFIG_VIA_BUTTON PLATFORM_HAS_BUTTON
#if CONFIG_VIA_BUTTON
#include "button-sensor.h"
#endif /* CONFIG_VIA_BUTTON */
/*---------------------------------------------------------------------------*/
PROCESS(node_process, "RPL Node");
#if CONFIG_VIA_BUTTON
AUTOSTART_PROCESSES(&node_process, &sensors_process);
#else /* CONFIG_VIA_BUTTON */
AUTOSTART_PROCESSES(&node_process);
#endif /* CONFIG_VIA_BUTTON */
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(node_process, ev, data)
{
static struct etimer et;
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PROCESS_BEGIN();
/* 3 possible roles:
* - role_6ln: simple node, will join any network, secured or not
* - role_6dg: DAG root, will advertise (unsecured) beacons
* */
static int is_coordinator = 0;
static enum { role_6ln, role_6dr } node_role;
node_role = role_6ln;
#if CONFIG_VIA_BUTTON
{
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#define CONFIG_WAIT_TIME 5
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SENSORS_ACTIVATE(button_sensor);
etimer_set(&et, CLOCK_SECOND * CONFIG_WAIT_TIME);
while(!etimer_expired(&et)) {
printf("Init: current role: %s. Will start in %u seconds.\n",
node_role == role_6ln ? "6ln" : "6dr",
CONFIG_WAIT_TIME);
PROCESS_WAIT_EVENT_UNTIL(((ev == sensors_event) &&
(data == &button_sensor) && button_sensor.value(0) > 0)
|| etimer_expired(&et));
if(ev == sensors_event && data == &button_sensor && button_sensor.value(0) > 0) {
node_role = (node_role + 1) % 2;
etimer_restart(&et);
}
}
}
#endif /* CONFIG_VIA_BUTTON */
printf("Init: node starting with role %s\n",
node_role == role_6ln ? "6ln" : "6dr");
is_coordinator = node_role > role_6ln;
if(is_coordinator) {
uip_ipaddr_t prefix;
uip_ip6addr(&prefix, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 0);
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rpl_tools_init(&prefix);
} else {
rpl_tools_init(NULL);
}
/* Print out routing tables every minute */
etimer_set(&et, CLOCK_SECOND * 60);
while(1) {
print_network_status();
PROCESS_YIELD_UNTIL(etimer_expired(&et));
etimer_reset(&et);
}
PROCESS_END();
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}
/*---------------------------------------------------------------------------*/