Michael Koster / Mbed 2 deprecated Weather_Station_LWM2M

LWM2M Weather Station

Dependencies:   EthernetInterfaceUpdate mbed-rtos mbed nanoservice_client_1_12_X

resources/IPSO_illuminance.cpp@3:12c28025d4a4, 2015-04-13 (annotated)

Committer:
michaeljkoster
Date:
Mon Apr 13 22:13:56 2015 +0000
Revision:
3:12c28025d4a4
updated NSDL-C

Who changed what in which revision?

UserRevisionLine numberNew contents of line
michaeljkoster 3:12c28025d4a4 1 // IPSO Illuminance sensor resource implementation
michaeljkoster 3:12c28025d4a4 2
michaeljkoster 3:12c28025d4a4 3 #include "mbed.h"
michaeljkoster 3:12c28025d4a4 4 #include "nsdl_support.h"
michaeljkoster 3:12c28025d4a4 5
michaeljkoster 3:12c28025d4a4 6 #define ILLUM_RES_ID "3301/0/5700"
michaeljkoster 3:12c28025d4a4 7 #define ILLUM_RES_RT "urn:X-ipso:illuminance"
michaeljkoster 3:12c28025d4a4 8
michaeljkoster 3:12c28025d4a4 9 extern Serial pc;
michaeljkoster 3:12c28025d4a4 10 uint8_t illum_max_age = 0;
michaeljkoster 3:12c28025d4a4 11 uint8_t illum_content_type = 50;
michaeljkoster 3:12c28025d4a4 12
michaeljkoster 3:12c28025d4a4 13 AnalogIn illumSensor(A1);
michaeljkoster 3:12c28025d4a4 14 int illum_percent;
michaeljkoster 3:12c28025d4a4 15 char illumPctString[5];
michaeljkoster 3:12c28025d4a4 16
michaeljkoster 3:12c28025d4a4 17 /* Only GET method allowed */
michaeljkoster 3:12c28025d4a4 18 static uint8_t illuminance_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto)
michaeljkoster 3:12c28025d4a4 19 {
michaeljkoster 3:12c28025d4a4 20 sn_coap_hdr_s *coap_res_ptr = 0;
michaeljkoster 3:12c28025d4a4 21 illum_percent = illumSensor.read() * 100;
michaeljkoster 3:12c28025d4a4 22 sprintf(illumPctString,"%d", illum_percent);
michaeljkoster 3:12c28025d4a4 23 pc.printf("illum callback\r\n");
michaeljkoster 3:12c28025d4a4 24 pc.printf("illum percent %s\r\n", illumPctString);
michaeljkoster 3:12c28025d4a4 25
michaeljkoster 3:12c28025d4a4 26 if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET)
michaeljkoster 3:12c28025d4a4 27 {
michaeljkoster 3:12c28025d4a4 28 coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT);
michaeljkoster 3:12c28025d4a4 29
michaeljkoster 3:12c28025d4a4 30 coap_res_ptr->payload_len = strlen(illumPctString);
michaeljkoster 3:12c28025d4a4 31 coap_res_ptr->payload_ptr = (uint8_t*)illumPctString;
michaeljkoster 3:12c28025d4a4 32
michaeljkoster 3:12c28025d4a4 33 coap_res_ptr->content_type_ptr = &illum_content_type;
michaeljkoster 3:12c28025d4a4 34 coap_res_ptr->content_type_len = sizeof(illum_content_type);
michaeljkoster 3:12c28025d4a4 35
michaeljkoster 3:12c28025d4a4 36 coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)nsdl_alloc(sizeof(sn_coap_options_list_s));
michaeljkoster 3:12c28025d4a4 37 if(!coap_res_ptr->options_list_ptr)
michaeljkoster 3:12c28025d4a4 38 {
michaeljkoster 3:12c28025d4a4 39 pc.printf("cant alloc option list for max-age\r\n");
michaeljkoster 3:12c28025d4a4 40 coap_res_ptr->options_list_ptr = NULL; //FIXME report error and recover
michaeljkoster 3:12c28025d4a4 41 }
michaeljkoster 3:12c28025d4a4 42 memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s));
michaeljkoster 3:12c28025d4a4 43 coap_res_ptr->options_list_ptr->max_age_ptr = &illum_max_age;
michaeljkoster 3:12c28025d4a4 44 coap_res_ptr->options_list_ptr->max_age_len = sizeof(illum_max_age);
michaeljkoster 3:12c28025d4a4 45
michaeljkoster 3:12c28025d4a4 46 sn_nsdl_send_coap_message(address, coap_res_ptr);
michaeljkoster 3:12c28025d4a4 47 nsdl_free(coap_res_ptr->options_list_ptr);
michaeljkoster 3:12c28025d4a4 48 coap_res_ptr->options_list_ptr = NULL;
michaeljkoster 3:12c28025d4a4 49 coap_res_ptr->content_type_ptr = NULL;// parser_release below tries to free this memory
michaeljkoster 3:12c28025d4a4 50
michaeljkoster 3:12c28025d4a4 51 }
michaeljkoster 3:12c28025d4a4 52
michaeljkoster 3:12c28025d4a4 53 sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr);
michaeljkoster 3:12c28025d4a4 54
michaeljkoster 3:12c28025d4a4 55 return 0;
michaeljkoster 3:12c28025d4a4 56 }
michaeljkoster 3:12c28025d4a4 57
michaeljkoster 3:12c28025d4a4 58 int create_IPSO_illuminance_resource(sn_nsdl_resource_info_s *resource_ptr)
michaeljkoster 3:12c28025d4a4 59 {
michaeljkoster 3:12c28025d4a4 60 nsdl_create_dynamic_resource(resource_ptr, sizeof(ILLUM_RES_ID)-1, (uint8_t*)ILLUM_RES_ID, sizeof(ILLUM_RES_RT)-1, (uint8_t*)ILLUM_RES_RT, 0, &illuminance_resource_cb, (SN_GRS_GET_ALLOWED));
michaeljkoster 3:12c28025d4a4 61 return 0;
michaeljkoster 3:12c28025d4a4 62 }