/* * Copyright (C) 2011-2014, 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) Dual RGBW Led REST Engine example (with CoAP-specific code) * \author * Matthias Kovatsch * Harald Pichler * Marcus Priesch */ #include #include #include #include "contiki.h" #include "contiki-net.h" #include "dev/t4-servo-sensor.h" #define DEBUG 1 #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 /******************************************************************************/ /* * 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\" : \"V1.0pre1\",\n"); index += sprintf(message + index," \"name\" : \"Dual RGBW Led Actor\"\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); } RESOURCE(t4_servo, METHOD_GET | METHOD_PUT , "a/dual_rgbw_led", "title=\"Dual RGBW Led Actor\";rt=\"dual_rgbw_led\""); void t4_servo_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset) { int success = 1; char temp[100]; int index = 0; int length = 0; const char *value = NULL; size_t len = 0; int r1 = t4_servo_sensor.value(0); int g1 = t4_servo_sensor.value(1); int b1 = t4_servo_sensor.value(2); int w1 = t4_servo_sensor.value(3); int r2 = t4_servo_sensor.value(4); int g2 = t4_servo_sensor.value(5); int b2 = t4_servo_sensor.value(6); int w2 = t4_servo_sensor.value(7); switch(REST.get_method_type(request)){ case METHOD_GET: // jSON Format index += sprintf(temp + index,"{\"r1\":%d,", r1); index += sprintf(temp + index, "\"g1\":%d,", g1); index += sprintf(temp + index, "\"b1\":%d,", b1); index += sprintf(temp + index, "\"w1\":%d,", w1); index += sprintf(temp + index, "\"r2\":%d,", r2); index += sprintf(temp + index, "\"g2\":%d,", g2); index += sprintf(temp + index, "\"b2\":%d,", b2); index += sprintf(temp + index, "\"w2\":%d,", w2); index += sprintf(temp + index,"}\n"); length = strlen(temp); memcpy(buffer, temp, length); REST.set_header_content_type(response, REST.type.APPLICATION_JSON); REST.set_response_payload(response, buffer, length); break; case METHOD_POST: success = 0; break; case METHOD_PUT: // Note that we have to set all at once: // red=255&green=255&blue=255&white=255 // otherwise we get "bad request" if (success && (len=REST.get_post_variable(request, "r1", &value))) { t4_servo_sensor.configure(0,(unsigned char) atoi(value)); } else { success = 0; } if (success && (len=REST.get_post_variable(request, "g1", &value))) { t4_servo_sensor.configure(1,(unsigned char) atoi(value)); } else { success = 0; } if (success && (len=REST.get_post_variable(request, "b1", &value))) { t4_servo_sensor.configure(2,(unsigned char) atoi(value)); } else { success = 0; } if (success && (len=REST.get_post_variable(request, "w1", &value))) { t4_servo_sensor.configure(3,(unsigned char) atoi(value)); } else { success = 0; } if (success && (len=REST.get_post_variable(request, "r2", &value))) { t4_servo_sensor.configure(4,(unsigned char) atoi(value)); } else { success = 0; } if (success && (len=REST.get_post_variable(request, "g2", &value))) { t4_servo_sensor.configure(5,(unsigned char) atoi(value)); } else { success = 0; } if (success && (len=REST.get_post_variable(request, "b2", &value))) { t4_servo_sensor.configure(6,(unsigned char) atoi(value)); } else { success = 0; } if (success && (len=REST.get_post_variable(request, "w2", &value))) { t4_servo_sensor.configure(7,(unsigned char) atoi(value)); } else { success = 0; } break; default: success = 0; } if (!success) { REST.set_response_status(response, REST.status.BAD_REQUEST); } } void hw_init() { } PROCESS(rest_server_example, "Erbium Example Server"); AUTOSTART_PROCESSES(&rest_server_example, &sensors_process); PROCESS_THREAD(rest_server_example, ev, data) { PROCESS_BEGIN(); PRINTF("Starting Erbium Example Server\n"); 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. */ rest_activate_resource(&resource_info); SENSORS_ACTIVATE(t4_servo_sensor); rest_activate_resource(&resource_t4_servo); /* Define application-specific events here. */ while(1) { PROCESS_WAIT_EVENT(); } PROCESS_END(); }