nrf52dk: added examples
This commit is contained in:
Wojciech Bober
parent
d39ad95db5
commit
38481c513d
16 changed files with 1826 additions and 0 deletions
35
examples/nrf52dk/coap-demo/Makefile
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35
examples/nrf52dk/coap-demo/Makefile
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@ -0,0 +1,35 @@
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CONTIKI=../../..
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CFLAGS += -DPROJECT_CONF_H=\"project-conf.h\"
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ifeq ($(MAKECMDGOALS),)
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$(error Please specify whether coap-client or coap-server should be built)
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endif
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ifneq ($(filter coap-client coap-client.flash, $(MAKECMDGOALS)),)
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ifeq ($(SERVER_IPV6_ADDR),)
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$(error Please define SERVER_IPV6_ADDR=<full ipv6 addr>)
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else
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CFLAGS += -DSERVER_IPV6_ADDR=\"$(SERVER_IPV6_ADDR)\"
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CFLAGS += -DDEVICE_NAME=\"nRF52_DK_CoAP_Client\"
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endif
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else
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CFLAGS += -DDEVICE_NAME=\"nRF52-DK-CoAP-Server\"
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endif
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# automatically build RESTful resources
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REST_RESOURCES_DIR = ./resources
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REST_RESOURCES_FILES = $(notdir $(shell find $(REST_RESOURCES_DIR) -name '*.c' ! -name 'res-plugtest*'))
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PROJECTDIRS += $(REST_RESOURCES_DIR)
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PROJECT_SOURCEFILES += $(REST_RESOURCES_FILES)
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# linker optimizations
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SMALL=1
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# REST Engine shall use Erbium CoAP implementation
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APPS += er-coap
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APPS += rest-engine
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CONTIKI_WITH_RPL = 0
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include $(CONTIKI)/Makefile.include
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63
examples/nrf52dk/coap-demo/README.md
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63
examples/nrf52dk/coap-demo/README.md
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@ -0,0 +1,63 @@
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A CoAP demo for nRF52 DK
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========================
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This demo contains two applications: coap-server and coap-client which are similar to
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[Coap Observable Server] and [Coap Observer Client] examples provided by the nRF5 IoT SDK.
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Note that before any CoAP requests can be made you'll need to configure an IPv6 connection
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to the device and assign a routable IPv6 address.
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For details how to do this please refer to sections 'Establishing an IPv6 connection'
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and 'Distributing routable IPv6 prefix' in `platform/nrf52dk/README-BLE-6LoWPAN.md`.
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CoAP Server
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===========
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The server exposes the following resources:
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host
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|-- .well-known
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| `-- core
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`-- lights
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`-- led3
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The state of LED 3 can be set and queried via CoAP through the observable resource `lights/led3`. Current
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state of LED 3 is returned as a text string in the payload. The value 0 means that LED 3 is off, 1 otherwise.
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Button 1 can be used to toggle state of the LED 3. This will cause a notification to be sent to
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any subscriber observing `lights/led3`. The state of the resource can also be changed by using POST/PUT to
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the resource with desired state encoded as a text in the payload. Send 1 to switch on and 0 to switch off.
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In order to compile and flash the CoAP server to a DK execute:
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make TARGET=nrf52dk coap-server.flash
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Note, if you haven't previously used a given device with Contiki it is recommended
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to erase the device and flash SoftDevice before flashing CoAP application, i.e.,
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make TARGET=nrf52dk erase
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make TARGET=nrf52dk softdevice.flash
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Please refer to the *Testing* and *Python Example* sections of [Coap Observable Server] tutorial for detailed description how to query the Coap Server using a PC.
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CoAP Client
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===========
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CoAP client compliments the CoAP server application. When Button 1 on the DK is pressed the the
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client subscribes to `lights/led3` resource. If successful the LED 4 will blink briefly. From this moment
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any change of the `lights/led3` resource will be automatically reflected by the client's LED 3.
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Note that the client must know the server's IPv6 address. The address is specified as a make variable
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during compliation.
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In order to compile and flash the CoAP client to DK execute:
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make TARGET=nrf52dk SERVER_IPV6_ADDR=<full-ip6-address> coap-client.flash
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Note, that you can use `NRF52_JLINK_SN=<SN>` to select a particular devkit in a case when
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you have more than one boards connected to PC. Please refer to `platform/README.md` for
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details.
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Please refer to the *Testing* and *Python Server Example* sections of [Coap Observer Client] tutorial for detailed description how to use CoAP client demo with a PC.
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Resources
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=========
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[Coap Observable Server] http://developer.nordicsemi.com/nRF5_IoT_SDK/doc/0.9.0/html/a00054.html
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[Coap Observer Client] http://developer.nordicsemi.com/nRF5_IoT_SDK/doc/0.9.0/html/a00051.html
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185
examples/nrf52dk/coap-demo/coap-client.c
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185
examples/nrf52dk/coap-demo/coap-client.c
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/*
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* Copyright (c) 2014, Daniele Alessandrelli.
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* Copyright (c) 2015, Nordic Semiconductor
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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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* This file is part of the Contiki operating system.
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*/
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/**
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* \addtogroup nrf52dk-examples Demo projects for nRF52 DK
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* @{
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*
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* \defgroup nrf52dk-coap-demo CoAP demo for nRF52 DK
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* @{
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*
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* \file
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* Erbium (Er) CoAP observe client example.
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* \author
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* Daniele Alessandrelli <daniele.alessandrelli@gmail.com>
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* \author
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* Wojciech Bober <wojciech.bober@nordicsemi.no>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "contiki.h"
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#include "contiki-net.h"
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#include "er-coap-engine.h"
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#include "dev/button-sensor.h"
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#include "dev/leds.h"
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#define DEBUG 0
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#if DEBUG
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#include <stdio.h>
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#define PRINTF(...) printf(__VA_ARGS__)
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#else
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#define PRINTF(...)
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#endif
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/*----------------------------------------------------------------------------*/
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#define REMOTE_PORT UIP_HTONS(COAP_DEFAULT_PORT)
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#define OBS_RESOURCE_URI "lights/led3"
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#define SUBS_LED LEDS_4
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#define OBS_LED LEDS_3
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/*----------------------------------------------------------------------------*/
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static uip_ipaddr_t server_ipaddr[1]; /* holds the server ip address */
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static coap_observee_t *obs;
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static struct ctimer ct;
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/*----------------------------------------------------------------------------*/
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PROCESS(er_example_observe_client, "nRF52 DK Coap Observer Client");
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AUTOSTART_PROCESSES(&er_example_observe_client);
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/*----------------------------------------------------------------------------*/
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static void
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observe_led_off(void *d)
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{
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leds_off(SUBS_LED);
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}
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/*----------------------------------------------------------------------------*/
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/*
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* Handle the response to the observe request and the following notifications
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*/
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static void
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notification_callback(coap_observee_t *obs, void *notification,
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coap_notification_flag_t flag)
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{
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int len = 0;
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const uint8_t *payload = NULL;
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PRINTF("Notification handler\n");
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PRINTF("Observee URI: %s\n", obs->url);
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if (notification) {
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len = coap_get_payload(notification, &payload);
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}
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(void)len;
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switch (flag) {
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case NOTIFICATION_OK:
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PRINTF("NOTIFICATION OK: %*s\n", len, (char *)payload);
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if (*payload == '1') {
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leds_on(OBS_LED);
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} else {
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leds_off(OBS_LED);
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}
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break;
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case OBSERVE_OK: /* server accepeted observation request */
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PRINTF("OBSERVE_OK: %*s\n", len, (char *)payload);
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if (*payload == '1') {
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leds_on(OBS_LED);
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} else {
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leds_off(OBS_LED);
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}
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leds_on(SUBS_LED);
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ctimer_set(&ct, CLOCK_SECOND, observe_led_off, NULL);
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break;
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case OBSERVE_NOT_SUPPORTED:
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PRINTF("OBSERVE_NOT_SUPPORTED: %*s\n", len, (char *)payload);
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obs = NULL;
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break;
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case ERROR_RESPONSE_CODE:
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PRINTF("ERROR_RESPONSE_CODE: %*s\n", len, (char *)payload);
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obs = NULL;
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break;
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case NO_REPLY_FROM_SERVER:
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PRINTF("NO_REPLY_FROM_SERVER: "
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"removing observe registration with token %x%x\n",
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obs->token[0], obs->token[1]);
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obs = NULL;
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break;
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}
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}
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/*----------------------------------------------------------------------------*/
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/*
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* The main (proto-)thread. It starts/stops the observation of the remote
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* resource every time the timer elapses or the button (if available) is
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* pressed
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*/
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PROCESS_THREAD(er_example_observe_client, ev, data)
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{
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PROCESS_BEGIN();
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uiplib_ipaddrconv(SERVER_IPV6_ADDR, server_ipaddr);
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/* receives all CoAP messages */
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coap_init_engine();
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#if PLATFORM_HAS_BUTTON
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SENSORS_ACTIVATE(button_1);
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SENSORS_ACTIVATE(button_2);
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#endif
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/* toggle observation every time the timer elapses or the button is pressed */
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while (1) {
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PROCESS_YIELD();
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#if PLATFORM_HAS_BUTTON
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if (ev == sensors_event) {
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if (data == &button_1 && button_1.value(BUTTON_SENSOR_VALUE_STATE) == 0) {
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PRINTF("Starting observation\n");
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obs = coap_obs_request_registration(server_ipaddr, REMOTE_PORT,
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OBS_RESOURCE_URI, notification_callback,
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NULL);
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}
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if (data == &button_2 && button_2.value(BUTTON_SENSOR_VALUE_STATE) == 0) {
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PRINTF("Stopping observation\n");
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coap_obs_remove_observee(obs);
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obs = NULL;
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}
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}
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#endif
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}
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PROCESS_END();
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}
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/**
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* @}
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* @}
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*/
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130
examples/nrf52dk/coap-demo/coap-server.c
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130
examples/nrf52dk/coap-demo/coap-server.c
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/*
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* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
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* Copyright (c) 2015, Nordic Semiconductor
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*
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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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* This file is part of the Contiki operating system.
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*/
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/**
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* \addtogroup nrf52dk-examples Demo projects for nRF52 DK
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* @{
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*
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* \defgroup nrf52dk-coap-demo CoAP demo for nRF52dk
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* @{
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*
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* \file
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* Erbium (Er) REST Engine example.
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* \author
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* Matthias Kovatsch <kovatsch@inf.ethz.ch>
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* \author
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* Wojciech Bober <wojciech.bober@nordicsemi.no>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "contiki.h"
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#include "contiki-net.h"
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#include "rest-engine.h"
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#include "uip.h"
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#include "dev/button-sensor.h"
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#include "dev/leds.h"
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#define DEBUG DEBUG_PRINT
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#include "net/ip/uip-debug.h"
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/*
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* Resources to be activated need to be imported through the extern keyword.
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* The build system automatically compiles the resources in the corresponding sub-directory.
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*/
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extern resource_t res_led3;
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static void
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print_local_addresses(void)
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{
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int i;
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uint8_t state;
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PRINTF("Server IPv6 addresses:\n");
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for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
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state = uip_ds6_if.addr_list[i].state;
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if(uip_ds6_if.addr_list[i].isused && (state == ADDR_TENTATIVE || state
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== ADDR_PREFERRED)) {
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PRINTF(" ");
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PRINT6ADDR(&uip_ds6_if.addr_list[i].ipaddr);
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PRINTF("\n");
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if(state == ADDR_TENTATIVE) {
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uip_ds6_if.addr_list[i].state = ADDR_PREFERRED;
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}
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}
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}
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}
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PROCESS(er_example_server, "nRF52 DK Coap Server");
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AUTOSTART_PROCESSES(&er_example_server);
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PROCESS_THREAD(er_example_server, ev, data)
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{
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PROCESS_BEGIN();
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PROCESS_PAUSE();
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PRINTF("Starting Erbium Example Server\n");
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PRINTF("uIP buffer: %u\n", UIP_BUFSIZE);
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PRINTF("LL header: %u\n", UIP_LLH_LEN);
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PRINTF("IP+UDP header: %u\n", UIP_IPUDPH_LEN);
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PRINTF("REST max chunk: %u\n", REST_MAX_CHUNK_SIZE);
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print_local_addresses();
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/* Initialize the REST engine. */
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rest_init_engine();
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rest_activate_resource(&res_led3, "lights/led3");
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SENSORS_ACTIVATE(button_1);
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/* Define application-specific events here. */
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while (1) {
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PROCESS_WAIT_EVENT();
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if (ev == sensors_event) {
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if (data == &button_1 && button_1.value(BUTTON_SENSOR_VALUE_STATE) == 0) {
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leds_toggle(LEDS_3);
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res_led3.trigger();
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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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* @}
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* @}
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*/
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85
examples/nrf52dk/coap-demo/project-conf.h
Normal file
85
examples/nrf52dk/coap-demo/project-conf.h
Normal file
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/*
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* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
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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
|
||||
* 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.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup nrf52dk-examples Demo projects for nRF52 DK
|
||||
* @{
|
||||
*
|
||||
* \defgroup nrf52dk-coap-demo CoAP demo for nRF52dk
|
||||
* @{
|
||||
*
|
||||
* \file
|
||||
* Erbium (Er) example project configuration.
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef __PROJECT_ERBIUM_CONF_H__
|
||||
#define __PROJECT_ERBIUM_CONF_H__
|
||||
|
||||
/* Disabling TCP on CoAP nodes. */
|
||||
#undef UIP_CONF_TCP
|
||||
#define UIP_CONF_TCP 0
|
||||
|
||||
/* Increase rpl-border-router IP-buffer when using more than 64. */
|
||||
#undef REST_MAX_CHUNK_SIZE
|
||||
#define REST_MAX_CHUNK_SIZE 48
|
||||
|
||||
/* Estimate your header size, especially when using Proxy-Uri. */
|
||||
/*
|
||||
#undef COAP_MAX_HEADER_SIZE
|
||||
#define COAP_MAX_HEADER_SIZE 70
|
||||
*/
|
||||
|
||||
/* Multiplies with chunk size, be aware of memory constraints. */
|
||||
#undef COAP_MAX_OPEN_TRANSACTIONS
|
||||
#define COAP_MAX_OPEN_TRANSACTIONS 4
|
||||
|
||||
/* Must be <= open transactions, default is COAP_MAX_OPEN_TRANSACTIONS-1. */
|
||||
/*
|
||||
#undef COAP_MAX_OBSERVERS
|
||||
#define COAP_MAX_OBSERVERS 2
|
||||
*/
|
||||
|
||||
/* Filtering .well-known/core per query can be disabled to save space. */
|
||||
#undef COAP_LINK_FORMAT_FILTERING
|
||||
#define COAP_LINK_FORMAT_FILTERING 0
|
||||
#undef COAP_PROXY_OPTION_PROCESSING
|
||||
#define COAP_PROXY_OPTION_PROCESSING 0
|
||||
|
||||
/* Enable client-side support for COAP observe */
|
||||
#define COAP_OBSERVE_CLIENT 1
|
||||
#endif /* __PROJECT_ERBIUM_CONF_H__ */
|
||||
|
||||
/**
|
||||
* @}
|
||||
* @}
|
||||
*/
|
||||
106
examples/nrf52dk/coap-demo/resources/res-leds.c
Normal file
106
examples/nrf52dk/coap-demo/resources/res-leds.c
Normal file
|
|
@ -0,0 +1,106 @@
|
|||
/*
|
||||
* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* Example resource
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
* \author
|
||||
* Wojciech Bober <wojciech.bober@nordicsemi.no>
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include "contiki.h"
|
||||
#include "rest-engine.h"
|
||||
#include "dev/leds.h"
|
||||
|
||||
#define DEBUG DEBUG_NONE
|
||||
#include "net/ip/uip-debug.h"
|
||||
|
||||
static void
|
||||
res_post_put_handler(void *request, void *response, uint8_t *buffer,
|
||||
uint16_t preferred_size, int32_t *offset);
|
||||
|
||||
static void
|
||||
res_get_handler(void *request, void *response, uint8_t *buffer,
|
||||
uint16_t preferred_size, int32_t *offset);
|
||||
|
||||
static void
|
||||
res_event_handler();
|
||||
|
||||
/*A simple actuator example, depending on the color query parameter and post variable mode, corresponding led is activated or deactivated*/
|
||||
EVENT_RESOURCE(res_led3,
|
||||
"title=\"LED3\"; obs",
|
||||
res_get_handler,
|
||||
res_post_put_handler,
|
||||
res_post_put_handler,
|
||||
NULL,
|
||||
res_event_handler
|
||||
);
|
||||
|
||||
static void
|
||||
res_post_put_handler(void *request, void *response, uint8_t *buffer,
|
||||
uint16_t preferred_size, int32_t *offset)
|
||||
{
|
||||
const uint8_t *payload;
|
||||
REST.get_request_payload(request, &payload);
|
||||
|
||||
if (*payload == '0' || *payload == '1') {
|
||||
if (*payload == '1') {
|
||||
leds_on(LEDS_3);
|
||||
} else {
|
||||
leds_off(LEDS_3);
|
||||
}
|
||||
REST.notify_subscribers(&res_led3);
|
||||
REST.set_response_status(response, REST.status.CHANGED);
|
||||
} else {
|
||||
REST.set_response_status(response, REST.status.BAD_REQUEST);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
||||
{
|
||||
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
|
||||
REST.set_response_payload(response, buffer, snprintf((char *)buffer, preferred_size, "%d", (leds_get() & LEDS_3) ? 1 : 0));
|
||||
}
|
||||
|
||||
/*
|
||||
* Additionally, res_event_handler must be implemented for each EVENT_RESOURCE.
|
||||
* It is called through <res_name>.trigger(), usually from the server process.
|
||||
*/
|
||||
static void
|
||||
res_event_handler()
|
||||
{
|
||||
/* Notify the registered observers which will trigger the res_get_handler to create the response. */
|
||||
REST.notify_subscribers(&res_led3);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue