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172 lines
5.5 KiB
C
172 lines
5.5 KiB
C
/*
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* Copyright (c) 2010, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/**
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* \file
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* Example of how the collect primitive works.
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#include "contiki.h"
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#include "lib/random.h"
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#include "net/netstack.h"
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#include "dev/serial-line.h"
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#include "dev/leds.h"
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#include "collect-common.h"
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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static unsigned long time_offset;
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static int send_active = 1;
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#ifndef PERIOD
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#define PERIOD 60
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#endif
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#define RANDWAIT (PERIOD)
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/*---------------------------------------------------------------------------*/
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PROCESS(collect_common_process, "collect common process");
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AUTOSTART_PROCESSES(&collect_common_process);
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/*---------------------------------------------------------------------------*/
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static unsigned long
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get_time(void)
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{
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return clock_seconds() + time_offset;
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}
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/*---------------------------------------------------------------------------*/
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static unsigned long
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strtolong(const char *data) {
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unsigned long value = 0;
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int i;
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for(i = 0; i < 10 && isdigit(data[i]); i++) {
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value = value * 10 + data[i] - '0';
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}
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return value;
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}
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/*---------------------------------------------------------------------------*/
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void
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collect_common_set_send_active(int active)
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{
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send_active = active;
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}
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/*---------------------------------------------------------------------------*/
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void
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collect_common_recv(const rimeaddr_t *originator, uint8_t seqno, uint8_t hops,
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uint8_t *payload, uint16_t payload_len)
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{
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unsigned long time;
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uint16_t data;
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int i;
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printf("%u", 8 + payload_len / 2);
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/* Timestamp. Ignore time synch for now. */
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time = get_time();
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printf(" %lu %lu 0", ((time >> 16) & 0xffff), time & 0xffff);
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/* Ignore latency for now */
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printf(" %u %u %u %u",
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originator->u8[0] + (originator->u8[1] << 8), seqno, hops, 0);
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for(i = 0; i < payload_len / 2; i++) {
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memcpy(&data, payload, sizeof(data));
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payload += sizeof(data);
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printf(" %u", data);
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}
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printf("\n");
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leds_blink();
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(collect_common_process, ev, data)
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{
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static struct etimer period_timer, wait_timer;
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PROCESS_BEGIN();
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collect_common_net_init();
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/* Send a packet every 60-62 seconds. */
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etimer_set(&period_timer, CLOCK_SECOND * PERIOD);
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while(1) {
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PROCESS_WAIT_EVENT();
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if(ev == serial_line_event_message) {
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char *line;
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line = (char *)data;
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if(strncmp(line, "collect", 7) == 0 ||
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strncmp(line, "gw", 2) == 0) {
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collect_common_set_sink();
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} else if(strncmp(line, "net", 3) == 0) {
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collect_common_net_print();
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} else if(strncmp(line, "time ", 5) == 0) {
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unsigned long tmp;
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line += 6;
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while(*line == ' ') {
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line++;
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}
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tmp = strtolong(line);
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time_offset = clock_seconds() - tmp;
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printf("Time offset set to %lu\n", time_offset);
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} else if(strncmp(line, "mac ", 4) == 0) {
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line +=4;
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while(*line == ' ') {
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line++;
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}
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if(*line == '0') {
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NETSTACK_RDC.off(1);
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printf("mac: turned MAC off (keeping radio on): %s\n",
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NETSTACK_RDC.name);
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} else {
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NETSTACK_RDC.on();
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printf("mac: turned MAC on: %s\n", NETSTACK_RDC.name);
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}
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} else if(strncmp(line, "~K", 2) == 0 ||
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strncmp(line, "killall", 7) == 0) {
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/* Ignore stop commands */
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} else {
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printf("unhandled command: %s\n", line);
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}
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}
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if(ev == PROCESS_EVENT_TIMER) {
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if(data == &period_timer) {
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etimer_reset(&period_timer);
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etimer_set(&wait_timer, random_rand() % (CLOCK_SECOND * RANDWAIT));
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} else if(data == &wait_timer) {
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if(send_active) {
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/* Time to send the data */
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collect_common_send();
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}
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}
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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