dimmer.cpp

00001 // dimmer resource implementation
00002 
00003 #include "mbed.h"
00004 #include "nsdl_support.h"
00005 #include "dimmer.h"
00006 #include "NSPLightDimmerAction.h"
00007 #include "NSPio.h"
00008 
00009 extern Logger *logger;
00010 extern NSPLightDimmerAction *_dimmerAction;
00011 
00012 NSPio *dimmer = NULL;
00013 
00014 // observation support
00015 static uint8_t dimmer_obs_number = 0;
00016 static uint8_t *dimmer_obs_token_ptr = NULL;
00017 static uint8_t dimmer_obs_token_len = 0;
00018 
00019 // send our dimmer observation
00020 void send_dimmer_observation() {
00021     if (dimmer_obs_token_ptr != NULL && dimmer_obs_number != 0) {
00022         //if (m_logger != NULL) m_logger->log("Sending Observation (dimmer): %s",dimmer->resource()->getValuePointer());
00023         sn_nsdl_send_observation_notification(dimmer_obs_token_ptr,dimmer_obs_token_len,(uint8_t*)dimmer->resource()->getValuePointer(),strlen(dimmer->resource()->getValuePointer()),&dimmer_obs_number,sizeof(dimmer_obs_number),COAP_MSG_TYPE_NON_CONFIRMABLE, 0);
00024     }
00025 }
00026 
00027 // init dimmer
00028 void init_dimmer(Resource *resource) {
00029     if (dimmer == NULL && resource != NULL) dimmer = new NSPio(m_logger,resource,&send_dimmer_observation);
00030 }
00031 
00032 // update our dimmer observation
00033 void update_dimmer_observation(sn_coap_hdr_s *received_coap_ptr,sn_coap_hdr_s *coap_res_ptr) {
00034     //if (m_logger != NULL) m_logger->log("Updating Observation (dimmer)...starting");
00035     if (received_coap_ptr->token_ptr != NULL) {
00036         if (dimmer_obs_token_ptr != NULL) free(dimmer_obs_token_ptr);
00037         dimmer_obs_token_ptr = (uint8_t *)malloc(received_coap_ptr->token_len);
00038         if(dimmer_obs_token_ptr != NULL) {
00039             memcpy(dimmer_obs_token_ptr, received_coap_ptr->token_ptr, received_coap_ptr->token_len);
00040             dimmer_obs_token_len = received_coap_ptr->token_len;
00041         }
00042     }
00043     if (received_coap_ptr->options_list_ptr->observe != NULL) {
00044         coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)malloc(sizeof(sn_coap_options_list_s));
00045         memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s));
00046         coap_res_ptr->options_list_ptr->observe_ptr = &(dimmer_obs_number);
00047         coap_res_ptr->options_list_ptr->observe_len = 1;
00048         dimmer_obs_number++;
00049     }
00050     //if (m_logger != NULL) m_logger->log("Updating Observation (dimmer)...done");
00051 }
00052 
00053 /* Only GET and PUT method allowed */
00054 uint8_t dimmer_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto) {
00055     uint8_t result = nsp_getput("dimmer",dimmer,received_coap_ptr,address,proto,&update_dimmer_observation);
00056     
00057     // action upon it...
00058     if (result == 0 && _dimmerAction != NULL) _dimmerAction->dim(dimmer->intValue());
00059         
00060     return result;
00061  }