MBED_DEMOS / Mbed 2 deprecated SensorExamples-mDS-Ethernet

Project with example IPSO resources for LED bar, Gas Sensor, and Light Sensor

Dependencies:   EthernetInterface LED_Bar mbed-rtos mbed nsdl_lib

resources/IPSO_presence.cpp@5:3fa1d1f8b3f8, 2014-10-25 (annotated)

Committer:
michaeljkoster
Date:
Sat Oct 25 03:16:58 2014 +0000
Revision:
5:3fa1d1f8b3f8
Parent:
4:69ea903414fe
Child:
6:4fa917ca6aa4
Added observe to presence sensor resource

Who changed what in which revision?

UserRevisionLine numberNew contents of line
michaeljkoster 1:76ab3521eb51 1 // IPSO Presence sensor resource implementation
michaeljkoster 1:76ab3521eb51 2
michaeljkoster 1:76ab3521eb51 3 #include "mbed.h"
michaeljkoster 5:3fa1d1f8b3f8 4 #include "rtos.h"
michaeljkoster 1:76ab3521eb51 5 #include "nsdl_support.h"
michaeljkoster 1:76ab3521eb51 6
michaeljkoster 1:76ab3521eb51 7 #define PRESENCE_RES_ID "3302/0/5500"
michaeljkoster 1:76ab3521eb51 8 #define PRESENCE_RES_RT "urn:X-ipso:presence"
michaeljkoster 1:76ab3521eb51 9
michaeljkoster 1:76ab3521eb51 10 extern Serial pc;
michaeljkoster 1:76ab3521eb51 11 uint8_t presence_max_age = 0;
michaeljkoster 1:76ab3521eb51 12 uint8_t presence_content_type = 50;
michaeljkoster 1:76ab3521eb51 13
michaeljkoster 5:3fa1d1f8b3f8 14 static uint8_t pres_obs_number = 0;
michaeljkoster 5:3fa1d1f8b3f8 15 static uint8_t *pres_obs_token_ptr = NULL;
michaeljkoster 5:3fa1d1f8b3f8 16 static uint8_t pres_obs_token_len = 0;
michaeljkoster 5:3fa1d1f8b3f8 17
michaeljkoster 1:76ab3521eb51 18 DigitalIn presenceSensor(D2);
michaeljkoster 1:76ab3521eb51 19 bool presence;
michaeljkoster 1:76ab3521eb51 20 char presenceString[2];
michaeljkoster 1:76ab3521eb51 21
michaeljkoster 5:3fa1d1f8b3f8 22 static void pres_observe_thread(void const *args)
michaeljkoster 5:3fa1d1f8b3f8 23 {
michaeljkoster 5:3fa1d1f8b3f8 24 int32_t time = 0;
michaeljkoster 5:3fa1d1f8b3f8 25 while (true)
michaeljkoster 5:3fa1d1f8b3f8 26 {
michaeljkoster 5:3fa1d1f8b3f8 27 wait(1);
michaeljkoster 5:3fa1d1f8b3f8 28 time++;
michaeljkoster 5:3fa1d1f8b3f8 29 //sn_nsdl_exec(time);
michaeljkoster 5:3fa1d1f8b3f8 30 if((!(time % 10)) && pres_obs_number != 0 && pres_obs_token_ptr != NULL)
michaeljkoster 5:3fa1d1f8b3f8 31 {
michaeljkoster 5:3fa1d1f8b3f8 32 pres_obs_number++;
michaeljkoster 5:3fa1d1f8b3f8 33 sprintf(presenceString,"%d", presenceSensor.read());
michaeljkoster 5:3fa1d1f8b3f8 34 if(sn_nsdl_send_observation_notification(pres_obs_token_ptr, pres_obs_token_len, (uint8_t*)presenceString, sizeof((uint8_t*)presenceString)-1, &pres_obs_number, 1, COAP_MSG_TYPE_NON_CONFIRMABLE, 0) == 0)
michaeljkoster 5:3fa1d1f8b3f8 35 pc.printf("Presence observation sending failed\r\n");
michaeljkoster 5:3fa1d1f8b3f8 36 else
michaeljkoster 5:3fa1d1f8b3f8 37 pc.printf("Presence observation\r\n");
michaeljkoster 5:3fa1d1f8b3f8 38 }
michaeljkoster 5:3fa1d1f8b3f8 39 }
michaeljkoster 5:3fa1d1f8b3f8 40 }
michaeljkoster 5:3fa1d1f8b3f8 41
michaeljkoster 5:3fa1d1f8b3f8 42
michaeljkoster 1:76ab3521eb51 43 /* Only GET method allowed */
michaeljkoster 1:76ab3521eb51 44 static uint8_t presence_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto)
michaeljkoster 1:76ab3521eb51 45 {
michaeljkoster 1:76ab3521eb51 46 sn_coap_hdr_s *coap_res_ptr = 0;
michaeljkoster 1:76ab3521eb51 47 presence = presenceSensor.read();
michaeljkoster 1:76ab3521eb51 48 sprintf(presenceString,"%d", presence);
michaeljkoster 4:69ea903414fe 49 pc.printf("presence callback\r\n");
michaeljkoster 4:69ea903414fe 50 pc.printf("presence state %s\r\n", presenceString);
michaeljkoster 1:76ab3521eb51 51
michaeljkoster 1:76ab3521eb51 52 if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET)
michaeljkoster 1:76ab3521eb51 53 {
michaeljkoster 1:76ab3521eb51 54 coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT);
michaeljkoster 5:3fa1d1f8b3f8 55
michaeljkoster 1:76ab3521eb51 56 coap_res_ptr->payload_len = strlen(presenceString);
michaeljkoster 1:76ab3521eb51 57 coap_res_ptr->payload_ptr = (uint8_t*)presenceString;
michaeljkoster 1:76ab3521eb51 58
michaeljkoster 1:76ab3521eb51 59 coap_res_ptr->content_type_ptr = &presence_content_type;
michaeljkoster 1:76ab3521eb51 60 coap_res_ptr->content_type_len = sizeof(presence_content_type);
michaeljkoster 1:76ab3521eb51 61
michaeljkoster 1:76ab3521eb51 62 coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)nsdl_alloc(sizeof(sn_coap_options_list_s));
michaeljkoster 1:76ab3521eb51 63 if(!coap_res_ptr->options_list_ptr)
michaeljkoster 1:76ab3521eb51 64 {
michaeljkoster 5:3fa1d1f8b3f8 65 pc.printf("cant alloc option list\r\n");
michaeljkoster 1:76ab3521eb51 66 coap_res_ptr->options_list_ptr = NULL; //FIXME report error and recover
michaeljkoster 1:76ab3521eb51 67 }
michaeljkoster 1:76ab3521eb51 68 memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s));
michaeljkoster 1:76ab3521eb51 69 coap_res_ptr->options_list_ptr->max_age_ptr = &presence_max_age;
michaeljkoster 1:76ab3521eb51 70 coap_res_ptr->options_list_ptr->max_age_len = sizeof(presence_max_age);
michaeljkoster 5:3fa1d1f8b3f8 71
michaeljkoster 5:3fa1d1f8b3f8 72 if(received_coap_ptr->token_ptr)
michaeljkoster 5:3fa1d1f8b3f8 73 {
michaeljkoster 5:3fa1d1f8b3f8 74 pc.printf("Token included\r\n");
michaeljkoster 5:3fa1d1f8b3f8 75 if(pres_obs_token_ptr)
michaeljkoster 5:3fa1d1f8b3f8 76 {
michaeljkoster 5:3fa1d1f8b3f8 77 free(pres_obs_token_ptr);
michaeljkoster 5:3fa1d1f8b3f8 78 pres_obs_token_ptr = 0;
michaeljkoster 5:3fa1d1f8b3f8 79 }
michaeljkoster 5:3fa1d1f8b3f8 80 pres_obs_token_ptr = (uint8_t*)malloc(received_coap_ptr->token_len);
michaeljkoster 5:3fa1d1f8b3f8 81 if(pres_obs_token_ptr)
michaeljkoster 5:3fa1d1f8b3f8 82 {
michaeljkoster 5:3fa1d1f8b3f8 83 memcpy(pres_obs_token_ptr, received_coap_ptr->token_ptr, received_coap_ptr->token_len);
michaeljkoster 5:3fa1d1f8b3f8 84 pres_obs_token_len = received_coap_ptr->token_len;
michaeljkoster 5:3fa1d1f8b3f8 85 }
michaeljkoster 5:3fa1d1f8b3f8 86 }
michaeljkoster 1:76ab3521eb51 87
michaeljkoster 5:3fa1d1f8b3f8 88 if(received_coap_ptr->options_list_ptr->observe)
michaeljkoster 5:3fa1d1f8b3f8 89 {
michaeljkoster 5:3fa1d1f8b3f8 90 //coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)malloc(sizeof(sn_coap_options_list_s));
michaeljkoster 5:3fa1d1f8b3f8 91 //memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s));
michaeljkoster 5:3fa1d1f8b3f8 92 coap_res_ptr->options_list_ptr->observe_ptr = &pres_obs_number;
michaeljkoster 5:3fa1d1f8b3f8 93 coap_res_ptr->options_list_ptr->observe_len = 1;
michaeljkoster 5:3fa1d1f8b3f8 94 pres_obs_number++;
michaeljkoster 5:3fa1d1f8b3f8 95 }
michaeljkoster 5:3fa1d1f8b3f8 96
michaeljkoster 1:76ab3521eb51 97 sn_nsdl_send_coap_message(address, coap_res_ptr);
michaeljkoster 1:76ab3521eb51 98 nsdl_free(coap_res_ptr->options_list_ptr);
michaeljkoster 1:76ab3521eb51 99 coap_res_ptr->options_list_ptr = NULL;
michaeljkoster 1:76ab3521eb51 100 coap_res_ptr->content_type_ptr = NULL;// parser_release below tries to free this memory
michaeljkoster 1:76ab3521eb51 101
michaeljkoster 1:76ab3521eb51 102 }
michaeljkoster 1:76ab3521eb51 103
michaeljkoster 1:76ab3521eb51 104 sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr);
michaeljkoster 1:76ab3521eb51 105
michaeljkoster 1:76ab3521eb51 106 return 0;
michaeljkoster 1:76ab3521eb51 107 }
michaeljkoster 1:76ab3521eb51 108
michaeljkoster 1:76ab3521eb51 109 int create_IPSO_presence_resource(sn_nsdl_resource_info_s *resource_ptr)
michaeljkoster 1:76ab3521eb51 110 {
michaeljkoster 5:3fa1d1f8b3f8 111 static Thread exec_thread(pres_observe_thread);
michaeljkoster 5:3fa1d1f8b3f8 112
michaeljkoster 5:3fa1d1f8b3f8 113 nsdl_create_dynamic_resource(resource_ptr, sizeof(PRESENCE_RES_ID)-1, (uint8_t*)PRESENCE_RES_ID, sizeof(PRESENCE_RES_RT)-1, (uint8_t*)PRESENCE_RES_RT, 1, &presence_resource_cb, (SN_GRS_GET_ALLOWED));
michaeljkoster 1:76ab3521eb51 114 return 0;
michaeljkoster 1:76ab3521eb51 115 }