osd-contiki/examples/osd/er-rest-example-merkurboard/resources/res-leds.c

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2014-11-19 22:06:38 +01:00
/*
* 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>
*/
#include "contiki.h"
#if PLATFORM_HAS_LEDS
#include <string.h>
#include "rest-engine.h"
#include "dev/leds.h"
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]", (lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3], (lladdr)->addr[4], (lladdr)->addr[5])
#else
#define PRINTF(...)
#define PRINT6ADDR(addr)
#define PRINTLLADDR(addr)
#endif
static void res_post_put_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
/*A simple actuator example, depending on the color query parameter and post variable mode, corresponding led is activated or deactivated*/
RESOURCE(res_leds,
"title=\"LEDs: ?color=r|g|b, POST/PUT mode=on|off\";rt=\"Control\"",
NULL,
res_post_put_handler,
res_post_put_handler,
NULL);
static void
res_post_put_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
size_t len = 0;
const char *color = NULL;
const char *mode = NULL;
uint8_t led = 0;
int success = 1;
if((len = REST.get_query_variable(request, "color", &color))) {
PRINTF("color %.*s\n", len, color);
if(strncmp(color, "r", len) == 0) {
led = LEDS_RED;
} else if(strncmp(color, "g", len) == 0) {
led = LEDS_GREEN;
} else if(strncmp(color, "b", len) == 0) {
led = LEDS_BLUE;
} else {
success = 0;
}
} else {
success = 0;
} if(success && (len = REST.get_post_variable(request, "mode", &mode))) {
PRINTF("mode %s\n", mode);
if(strncmp(mode, "on", len) == 0) {
leds_on(led);
} else if(strncmp(mode, "off", len) == 0) {
leds_off(led);
} else {
success = 0;
}
} else {
success = 0;
} if(!success) {
REST.set_response_status(response, REST.status.BAD_REQUEST);
}
}
#endif /* PLATFORM_HAS_LEDS */