145 lines
5 KiB
C
145 lines
5 KiB
C
/*
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* Copyright (c) 2015 NXP B.V.
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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 NXP B.V. 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 NXP B.V. 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 NXP B.V. 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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* This file is part of the Contiki operating system.
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*
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* Author: Theo van Daele <theo.van.daele@nxp.com>
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*
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*/
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#include "contiki.h"
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#include "net/ip/uip.h"
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#include "net/ipv6/uip-ds6.h"
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#include "tools/rpl-tools.h"
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#include "rest-engine.h"
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#include "sys/ctimer.h"
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#include <stdio.h>
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#include "dev/leds.h"
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static void ct_callback(void *ptr);
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static void put_post_led_toggle_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
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static char content[REST_MAX_CHUNK_SIZE];
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static int content_len = 0;
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static struct ctimer ct;
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#define CONTENT_PRINTF(...) { if(content_len < sizeof(content)) { content_len += snprintf(content + content_len, sizeof(content) - content_len, __VA_ARGS__); } }
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/* On dongle, LEDs are connected anti-parallel to DIO pins. */
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#define TOGGLE_TIME CLOCK_SECOND
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/*---------------------------------------------------------------------------*/
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PROCESS(start_app, "START_APP");
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AUTOSTART_PROCESSES(&start_app);
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/*---------------------------------------------------------------------------*/
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/* Call back for led toggle timer to toggle leds */
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static void
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ct_callback(void *ptr)
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{
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static uint8 toggle_status = 0;
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if(toggle_status) {
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leds_set(LEDS_RED);
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} else {
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leds_set(LEDS_GREEN);
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} ctimer_restart(&ct);
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toggle_status ^= 0x01;
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}
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/*********** CoAP sensor/ resource ************************************************/
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RESOURCE(resource_led_toggle,
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"title=\"Led_toggle\"",
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NULL,
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put_post_led_toggle_handler,
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put_post_led_toggle_handler,
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NULL);
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static void
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put_post_led_toggle_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
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{
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static int led_state = 0;
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unsigned int accept = -1;
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/* Given the way the LEDs are connected to the DIO ports, the LEDs are controlled via direct DIO access. */
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content_len = 0;
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switch(led_state) {
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case (0):
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ctimer_stop(&ct);
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leds_set(LEDS_GREEN); /* Only LEDS_GREEN on */
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CONTENT_PRINTF("Message from resource: Green LED on");
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led_state = 1;
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break;
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case (1):
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leds_set(LEDS_RED); /* Only LEDS_RED on */
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CONTENT_PRINTF("Message from resource: Red LED on");
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led_state = 2;
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break;
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case (2):
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leds_set(0); /* All LEDS off */
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CONTENT_PRINTF("Message from resource: All LEDs off");
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led_state = 3;
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break;
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case 3:
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/* Both leds toggle */
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CONTENT_PRINTF("Message from resource: LEDs toggle");
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ctimer_restart(&ct);
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led_state = 0;
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default:
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break;
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}
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/* Return message */
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REST.get_header_accept(request, &accept);
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if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
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REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
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REST.set_response_payload(response, (uint8_t *)content, content_len);
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}
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(start_app, ev, data)
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{
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PROCESS_BEGIN();
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static int is_coordinator = 0;
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/* Switch off dongle leds */
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/* Initialise ct timer, but don't let it run yet */
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ctimer_set(&ct, TOGGLE_TIME, ct_callback, NULL);
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ctimer_stop(&ct);
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/* Start net stack */
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if(is_coordinator) {
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uip_ipaddr_t prefix;
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uip_ip6addr(&prefix, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 0);
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rpl_tools_init(&prefix);
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} else {
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rpl_tools_init(NULL);
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} printf("Starting RPL node\n");
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rest_init_engine();
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rest_activate_resource(&resource_led_toggle, "Dongle/LED-toggle");
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PROCESS_END();
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}
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