haopeng tang / Mbed 2 deprecated STM32F746_LWM2M_Client

from LPC1768_LWM2M_Client

Dependencies:   F7_Ethernet mbed-rtos mbed nsdl_lib

Fork of rtos_basic by Mbed

resources/temperature.cpp@8:5bcb48a04554, 2016-12-21 (annotated)

Committer:
zef
Date:
Wed Dec 21 03:08:39 2016 +0000
Revision:
8:5bcb48a04554
from LPC1768_LWM2M_Client Project

Who changed what in which revision?

UserRevisionLine numberNew contents of line
zef 8:5bcb48a04554 1 // Temperature resource implementation
zef 8:5bcb48a04554 2
zef 8:5bcb48a04554 3 #include "mbed.h"
zef 8:5bcb48a04554 4 #include "rtos.h"
zef 8:5bcb48a04554 5 //#include "LM75B.h"
zef 8:5bcb48a04554 6 #include "nsdl_support.h"
zef 8:5bcb48a04554 7 #include "temperature.h"
zef 8:5bcb48a04554 8
zef 8:5bcb48a04554 9 #define TEMP_RES_ID "sen/temp"
zef 8:5bcb48a04554 10
zef 8:5bcb48a04554 11 //static LM75B tmp(p28,p27);
zef 8:5bcb48a04554 12 /* stored data for observable resource */
zef 8:5bcb48a04554 13 static uint8_t obs_number = 0;
zef 8:5bcb48a04554 14 static uint8_t *obs_token_ptr = NULL;
zef 8:5bcb48a04554 15 static uint8_t obs_token_len = 0;
zef 8:5bcb48a04554 16 static char temp_val[5];
zef 8:5bcb48a04554 17 extern Serial pc;
zef 8:5bcb48a04554 18 static uint8_t tmp=29;
zef 8:5bcb48a04554 19 /* Thread for calling libNsdl exec function (cleanup, resendings etc..) */
zef 8:5bcb48a04554 20 /* Node updates temperature every 10 seconds. Notification sending is done here. */
zef 8:5bcb48a04554 21 static void exec_call_thread(void const *args)
zef 8:5bcb48a04554 22 {
zef 8:5bcb48a04554 23 int32_t time = 0;
zef 8:5bcb48a04554 24 while (true)
zef 8:5bcb48a04554 25 {
zef 8:5bcb48a04554 26 wait(1);
zef 8:5bcb48a04554 27 time++;
zef 8:5bcb48a04554 28 sn_nsdl_exec(time);
zef 8:5bcb48a04554 29 if((!(time % 10)) && obs_number != 0 && obs_token_ptr != NULL)
zef 8:5bcb48a04554 30 {
zef 8:5bcb48a04554 31 obs_number++;
zef 8:5bcb48a04554 32 //sprintf(temp_val,"%2.2f" ,tmp.read());
zef 8:5bcb48a04554 33 sprintf(temp_val,"%2.2f" ,tmp);
zef 8:5bcb48a04554 34 if(sn_nsdl_send_observation_notification(obs_token_ptr, obs_token_len, (uint8_t*)temp_val, 5, &obs_number, 1, COAP_MSG_TYPE_NON_CONFIRMABLE, 0) == 0)
zef 8:5bcb48a04554 35 pc.printf("Observation sending failed\r\n");
zef 8:5bcb48a04554 36 else
zef 8:5bcb48a04554 37 pc.printf("Observation\r\n");
zef 8:5bcb48a04554 38 }
zef 8:5bcb48a04554 39 }
zef 8:5bcb48a04554 40 }
zef 8:5bcb48a04554 41
zef 8:5bcb48a04554 42 /* Only GET method allowed */
zef 8:5bcb48a04554 43 /* Observable resource */
zef 8:5bcb48a04554 44 static uint8_t temp_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto)
zef 8:5bcb48a04554 45 {
zef 8:5bcb48a04554 46 //sprintf(temp_val,"%2.2f" ,tmp.read());
zef 8:5bcb48a04554 47 sprintf(temp_val,"%2.2f" ,tmp);
zef 8:5bcb48a04554 48 sn_coap_hdr_s *coap_res_ptr = 0;
zef 8:5bcb48a04554 49
zef 8:5bcb48a04554 50 pc.printf("temp callback\r\n");
zef 8:5bcb48a04554 51 coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT);
zef 8:5bcb48a04554 52
zef 8:5bcb48a04554 53 coap_res_ptr->payload_len = 5;
zef 8:5bcb48a04554 54 coap_res_ptr->payload_ptr = (uint8_t*)temp_val;
zef 8:5bcb48a04554 55
zef 8:5bcb48a04554 56 if(received_coap_ptr->token_ptr)
zef 8:5bcb48a04554 57 {
zef 8:5bcb48a04554 58 pc.printf("Token included\r\n");
zef 8:5bcb48a04554 59 if(obs_token_ptr)
zef 8:5bcb48a04554 60 {
zef 8:5bcb48a04554 61 free(obs_token_ptr);
zef 8:5bcb48a04554 62 obs_token_ptr = 0;
zef 8:5bcb48a04554 63 }
zef 8:5bcb48a04554 64 obs_token_ptr = (uint8_t*)malloc(received_coap_ptr->token_len);
zef 8:5bcb48a04554 65 if(obs_token_ptr)
zef 8:5bcb48a04554 66 {
zef 8:5bcb48a04554 67 memcpy(obs_token_ptr, received_coap_ptr->token_ptr, received_coap_ptr->token_len);
zef 8:5bcb48a04554 68 obs_token_len = received_coap_ptr->token_len;
zef 8:5bcb48a04554 69 }
zef 8:5bcb48a04554 70 }
zef 8:5bcb48a04554 71
zef 8:5bcb48a04554 72 if(received_coap_ptr->options_list_ptr->observe)
zef 8:5bcb48a04554 73 {
zef 8:5bcb48a04554 74 coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)malloc(sizeof(sn_coap_options_list_s));
zef 8:5bcb48a04554 75 memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s));
zef 8:5bcb48a04554 76 coap_res_ptr->options_list_ptr->observe_ptr = &obs_number;
zef 8:5bcb48a04554 77 coap_res_ptr->options_list_ptr->observe_len = 1;
zef 8:5bcb48a04554 78 obs_number++;
zef 8:5bcb48a04554 79 }
zef 8:5bcb48a04554 80
zef 8:5bcb48a04554 81 sn_nsdl_send_coap_message(address, coap_res_ptr);
zef 8:5bcb48a04554 82
zef 8:5bcb48a04554 83 coap_res_ptr->options_list_ptr->observe_ptr = 0;
zef 8:5bcb48a04554 84 sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr);
zef 8:5bcb48a04554 85 return 0;
zef 8:5bcb48a04554 86 }
zef 8:5bcb48a04554 87
zef 8:5bcb48a04554 88 int create_temperature_resource(sn_nsdl_resource_info_s *resource_ptr)
zef 8:5bcb48a04554 89 {
zef 8:5bcb48a04554 90 static Thread exec_thread(exec_call_thread);
zef 8:5bcb48a04554 91
zef 8:5bcb48a04554 92 nsdl_create_dynamic_resource(resource_ptr, sizeof(TEMP_RES_ID)-1, (uint8_t*)TEMP_RES_ID, 0, 0, 1, &temp_resource_cb, SN_GRS_GET_ALLOWED);
zef 8:5bcb48a04554 93 return 0;
zef 8:5bcb48a04554 94 }