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osd-contiki/examples/osd/climate/er-example-server.c

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/*
* Copyright (c) 2011, Matthias Kovatsch and other contributors.
* 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
* Erbium (Er) REST Engine example (with CoAP-specific code)
* \author
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "contiki.h"
#include "contiki-net.h"
/* Define which resources to include to meet memory constraints. */
#define REST_RES_INFO 1
#define REST_RES_DS1820 0
#define REST_RES_DHT11 1
#define REST_RES_DHT11TEMP 1
#define REST_RES_LEDS 1
#define REST_RES_TOGGLE 0
#define REST_RES_BATTERY 1
#include "erbium.h"
#if REST_RES_DS1820
#include "dev/ds1820.h"
#endif
#if REST_RES_DHT11
#include "dev/dht11.h"
uint16_t dht11_temp=0, dht11_hum=0;
#endif
#if defined (PLATFORM_HAS_BUTTON)
#include "dev/button-sensor.h"
#endif
#if defined (PLATFORM_HAS_LEDS)
#include "dev/leds.h"
#endif
#if defined (PLATFORM_HAS_TEMPERATURE)
#include "dev/temperature-sensor.h"
#endif
#if defined (PLATFORM_HAS_BATTERY)
#include "dev/battery-sensor.h"
#endif
#if defined (PLATFORM_HAS_SHT11)
#include "dev/sht11-sensor.h"
#endif
/* For CoAP-specific example: not required for normal RESTful Web service. */
#if WITH_COAP == 3
#include "er-coap-03.h"
#elif WITH_COAP == 7
#include "er-coap-07.h"
#elif WITH_COAP == 12
#include "er-coap-12.h"
#elif WITH_COAP == 13
#include "er-coap-13.h"
#else
#warning "Erbium example without CoAP-specifc functionality"
#endif /* CoAP-specific example */
#define DEBUG 0
#if DEBUG
#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
/******************************************************************************/
#if REST_RES_INFO
/*
* Resources are defined by the RESOURCE macro.
* Signature: resource name, the RESTful methods it handles, and its URI path (omitting the leading slash).
*/
RESOURCE(info, METHOD_GET, "info", "title=\"Info\";rt=\"text\"");
/*
* A handler function named [resource name]_handler must be implemented for each RESOURCE.
* A buffer for the response payload is provided through the buffer pointer. Simple resources can ignore
* preferred_size and offset, but must respect the REST_MAX_CHUNK_SIZE limit for the buffer.
* If a smaller block size is requested for CoAP, the REST framework automatically splits the data.
*/
void
info_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
char message[100];
int index = 0;
int length = 0; /* |<-------->| */
/* Some data that has the length up to REST_MAX_CHUNK_SIZE. For more, see the chunk resource. */
// jSON Format
index += sprintf(message + index,"{\n \"version\" : \"V0.4.3\",\n");
index += sprintf(message + index," \"name\" : \"6lowpan-climate\"\n");
index += sprintf(message + index,"}\n");
length = strlen(message);
memcpy(buffer, message,length );
REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
REST.set_response_payload(response, buffer, length);
}
#endif
#if REST_RES_DS1820
/* A simple getter example. Returns the reading from ds1820 sensor */
#define DS1820_TEMP_LSB 0
#define DS1820_TEMP_MSB 1
#define DS1820_COUNT_REMAIN 6
#define DS1820_COUNT_PER_C 7
RESOURCE(ds1820, METHOD_GET, "s/temp", "title=\"Temperatur DS1820\";rt=\"temperature-c\"");
void
ds1820_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
char message[100];
int length = 0; /* |<-------->| */
union temp_raw {
int16_t s_int16;
uint16_t u_int16;
} temp_raw;
double temp_c;
int temp_integral;
int temp_centi;
const uint16_t *accept = NULL;
int num = REST.get_header_accept(request, &accept);
// temp = temp_read - 0.25°C + (count_per_c - count_remain) / count_per_c;
temp_raw.u_int16 = ds1820_ok[DS1820_TEMP_MSB] << 8 | ds1820_ok[DS1820_TEMP_LSB];
temp_c = temp_raw.s_int16 / 2.0
- 0.25
+ ((double) ds1820_ok[DS1820_COUNT_PER_C] - (double) ds1820_ok[DS1820_COUNT_REMAIN])
/ (double) ds1820_ok[DS1820_COUNT_PER_C];
temp_integral = (int) temp_c;
temp_centi = (int) (fabs (temp_c - (int) temp_c) * 100.0);
if ((num==0) || (num && accept[0]==REST.type.TEXT_PLAIN))
{
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
snprintf(message, REST_MAX_CHUNK_SIZE, "%d.%02d C", temp_integral, temp_centi);
length = strlen(message);
memcpy(buffer, message,length );
REST.set_response_payload(response, buffer, length);
}
else if (num && (accept[0]==REST.type.APPLICATION_JSON))
{
REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
snprintf(message, REST_MAX_CHUNK_SIZE, "{\"temp\":\"%d.%02d\"}", temp_integral, temp_centi);
length = strlen(message);
memcpy(buffer, message,length );
REST.set_response_payload(response, buffer, length);
}
else
{
REST.set_response_status(response, REST.status.NOT_ACCEPTABLE);
REST.set_response_payload(response, (uint8_t *)"Supporting content-types text/plain and application/json", 56);
}
}
#endif //REST_RES_DS1820
#if REST_RES_DHT11TEMP
/*A simple getter example. Returns the reading from dhtxx sensor*/
RESOURCE(dht11temp, METHOD_GET, "s/temp", "title=\"Temperatur DHTxx\";rt=\"temperature-c\"");
void
dht11temp_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
char message[100];
int length = 0; /* |<-------->| */
const uint16_t *accept = NULL;
int num = REST.get_header_accept(request, &accept);
if ((num==0) || (num && accept[0]==REST.type.TEXT_PLAIN))
{
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
snprintf(message, REST_MAX_CHUNK_SIZE, "%d.%02d",dht11_temp/100, dht11_temp % 100);
length = strlen(message);
memcpy(buffer, message,length );
REST.set_response_payload(response, buffer, length);
}
else if (num && (accept[0]==REST.type.APPLICATION_JSON))
{
REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
snprintf(message, REST_MAX_CHUNK_SIZE, "{\"temp\":\"%d.%02d\"}",dht11_temp/100, dht11_temp % 100);
length = strlen(message);
memcpy(buffer, message,length );
REST.set_response_payload(response, buffer, length);
}
else
{
REST.set_response_status(response, REST.status.NOT_ACCEPTABLE);
REST.set_response_payload(response, (uint8_t *)"Supporting content-types text/plain and application/json", 56);
}
}
#endif //REST_RES_DHT11TEMP
#if REST_RES_DHT11
/*A simple getter example. Returns the reading from dhtxx sensor*/
RESOURCE(dht11, METHOD_GET, "s/hum", "title=\"Humidity DHTxx\";rt=\"humidity-%\"");
void
dht11_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
char message[100];
int length = 0; /* |<-------->| */
const uint16_t *accept = NULL;
int num = REST.get_header_accept(request, &accept);
if ((num==0) || (num && accept[0]==REST.type.TEXT_PLAIN))
{
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
snprintf(message, REST_MAX_CHUNK_SIZE, "%d.%02d",dht11_hum/100, dht11_hum % 100);
length = strlen(message);
memcpy(buffer, message,length );
REST.set_response_payload(response, buffer, length);
}
else if (num && (accept[0]==REST.type.APPLICATION_JSON))
{
REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
snprintf(message, REST_MAX_CHUNK_SIZE, "{\"hum\":\"%d.%02d\"}",dht11_hum/100, dht11_hum % 100);
length = strlen(message);
memcpy(buffer, message,length );
REST.set_response_payload(response, buffer, length);
}
else
{
REST.set_response_status(response, REST.status.NOT_ACCEPTABLE);
REST.set_response_payload(response, (uint8_t *)"Supporting content-types text/plain and application/json", 56);
}
}
#endif //REST_RES_DHT11
/******************************************************************************/
#if defined (PLATFORM_HAS_LEDS)
/******************************************************************************/
#if REST_RES_LEDS
/*A simple actuator example, depending on the color query parameter and post variable mode, corresponding led is activated or deactivated*/
RESOURCE(leds, METHOD_POST | METHOD_PUT , "a/leds", "title=\"LEDs: ?color=r|g|b, POST/PUT mode=on|off\";rt=\"Control\"");
void
leds_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
/******************************************************************************/
#if REST_RES_TOGGLE
/* A simple actuator example. Toggles the red led */
RESOURCE(toggle, METHOD_GET | METHOD_PUT | METHOD_POST, "a/toggle", "title=\"Red LED\";rt=\"Control\"");
void
toggle_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
leds_toggle(LEDS_RED);
}
#endif
#endif /* PLATFORM_HAS_LEDS */
/******************************************************************************/
#if REST_RES_BATTERY && defined (PLATFORM_HAS_BATTERY)
/* A simple getter example. Returns the reading from light sensor with a simple etag */
RESOURCE(battery, METHOD_GET, "s/battery", "title=\"Battery status\";rt=\"battery-mV\"");
void
battery_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
int battery = battery_sensor.value(0);
const uint16_t *accept = NULL;
int num = REST.get_header_accept(request, &accept);
if ((num==0) || (num && accept[0]==REST.type.TEXT_PLAIN))
{
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
snprintf((char *)buffer, REST_MAX_CHUNK_SIZE, "%d.%02d", battery/1000, battery % 1000);
REST.set_response_payload(response, (uint8_t *)buffer, strlen((char *)buffer));
}
else if (num && (accept[0]==REST.type.APPLICATION_JSON))
{
REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
snprintf((char *)buffer, REST_MAX_CHUNK_SIZE, "{'battery':%d.%02d}", battery/1000, battery % 1000);
REST.set_response_payload(response, buffer, strlen((char *)buffer));
}
else
{
REST.set_response_status(response, REST.status.NOT_ACCEPTABLE);
const char *msg = "Supporting content-types text/plain and application/json";
REST.set_response_payload(response, msg, strlen(msg));
}
}
#endif /* PLATFORM_HAS_BATTERY */
void
hw_init()
{
#if defined (PLATFORM_HAS_LEDS)
leds_off(LEDS_RED);
#endif
#if REST_RES_DS1820
ds1820_temp();
#endif
#if REST_RES_DHT11
//DHT_INIT();
DHT_Read_Data(&dht11_temp, &dht11_hum);
#endif
}
#define MESURE_INTERVAL (20 * CLOCK_SECOND)
#define READ_TIME ( 2 * CLOCK_SECOND)
PROCESS(rest_server_example, "Erbium Example Server");
AUTOSTART_PROCESSES(&rest_server_example);
PROCESS_THREAD(rest_server_example, ev, data)
{
static struct etimer ds_periodic_timer;
#if REST_RES_DS1820
static struct etimer ds_read_timer;
#endif
PROCESS_BEGIN();
PRINTF("Starting Erbium Example Server\n");
#ifdef RF_CHANNEL
PRINTF("RF channel: %u\n", RF_CHANNEL);
#endif
#ifdef IEEE802154_PANID
PRINTF("PAN ID: 0x%04X\n", IEEE802154_PANID);
#endif
PRINTF("uIP buffer: %u\n", UIP_BUFSIZE);
PRINTF("LL header: %u\n", UIP_LLH_LEN);
PRINTF("IP+UDP header: %u\n", UIP_IPUDPH_LEN);
PRINTF("REST max chunk: %u\n", REST_MAX_CHUNK_SIZE);
/* if static routes are used rather than RPL */
#if !UIP_CONF_IPV6_RPL && !defined (CONTIKI_TARGET_MINIMAL_NET) && !defined (CONTIKI_TARGET_NATIVE)
set_global_address();
configure_routing();
#endif
/* Initialize the OSD Hardware. */
hw_init();
/* Initialize the REST engine. */
rest_init_engine();
/* Activate the application-specific resources. */
#if REST_RES_DS1820
rest_activate_resource(&resource_ds1820);
#endif
#if REST_RES_DHT11
rest_activate_resource(&resource_dht11);
#endif
#if REST_RES_DHT11TEMP
rest_activate_resource(&resource_dht11temp);
#endif
#if REST_RES_INFO
rest_activate_resource(&resource_info);
#endif
#if defined (PLATFORM_HAS_LEDS)
#if REST_RES_LEDS
rest_activate_resource(&resource_leds);
#endif
#if REST_RES_TOGGLE
rest_activate_resource(&resource_toggle);
#endif
#endif /* PLATFORM_HAS_LEDS */
#if defined (PLATFORM_HAS_TEMPERATURE) && REST_RES_TEMPERATURE
SENSORS_ACTIVATE(temperature_sensor);
rest_activate_resource(&resource_temperature);
#endif
#if defined (PLATFORM_HAS_BATTERY) && REST_RES_BATTERY
SENSORS_ACTIVATE(battery_sensor);
rest_activate_resource(&resource_battery);
#endif
/* Define application-specific events here. */
etimer_set(&ds_periodic_timer, MESURE_INTERVAL);
while(1) {
PROCESS_WAIT_EVENT();
#if defined (PLATFORM_HAS_BUTTON)
if (ev == sensors_event && data == &button_sensor) {
PRINTF("BUTTON\n");
}
#endif /* PLATFORM_HAS_BUTTON */
if(etimer_expired(&ds_periodic_timer)) {
PRINTF("Periodic\n");
etimer_reset(&ds_periodic_timer);
#if REST_RES_DHT11
// DHT_Read_Data(&dht11_temp, &dht11_hum);
DHT_Read_Data(&dht11_temp, &dht11_hum);
#endif
#if REST_RES_DS1820
if(ds1820_convert()){
etimer_set(&ds_read_timer, READ_TIME);
}
#endif
}
#if REST_RES_DS1820
if(etimer_expired(&ds_read_timer)) {
PRINTF("DS1820_Read\n");
ds1820_read();
}
#endif
} /* while (1) */
PROCESS_END();
}
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