MBED_DEMOS / Mbed 2 deprecated LPC1768_LWM2M_Client

LPC1768 hell world with LWM2M

Dependencies:   Beep C12832_lcd EthernetInterface LM75B MMA7660 mbed-rtos mbed nsdl_lib

resources/light.cpp@0:9101343a70cd, 2014-07-22 (annotated)

Committer:
michaeljkoster
Date:
Tue Jul 22 23:58:23 2014 +0000
Revision:
0:9101343a70cd
Demo with lwm2m

Who changed what in which revision?

UserRevisionLine numberNew contents of line
michaeljkoster 0:9101343a70cd 1 // Light resource implementation
michaeljkoster 0:9101343a70cd 2
michaeljkoster 0:9101343a70cd 3 #include "mbed.h"
michaeljkoster 0:9101343a70cd 4 #include "nsdl_support.h"
michaeljkoster 0:9101343a70cd 5 #include "light.h"
michaeljkoster 0:9101343a70cd 6
michaeljkoster 0:9101343a70cd 7 #define LIGHT_RES_ID "lt/0/dim"
michaeljkoster 0:9101343a70cd 8
michaeljkoster 0:9101343a70cd 9 extern Serial pc;
michaeljkoster 0:9101343a70cd 10 //PwmOut led1(LED1);
michaeljkoster 0:9101343a70cd 11 static PwmOut led2(LED2);
michaeljkoster 0:9101343a70cd 12 static PwmOut led3(LED3);
michaeljkoster 0:9101343a70cd 13 //PwmOut led4(LED4);
michaeljkoster 0:9101343a70cd 14
michaeljkoster 0:9101343a70cd 15 /* Only GET and PUT method allowed */
michaeljkoster 0:9101343a70cd 16 static uint8_t light_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto)
michaeljkoster 0:9101343a70cd 17 {
michaeljkoster 0:9101343a70cd 18 sn_coap_hdr_s *coap_res_ptr = 0;
michaeljkoster 0:9101343a70cd 19 static float led_dimm = 0;
michaeljkoster 0:9101343a70cd 20 int led_state = 0;
michaeljkoster 0:9101343a70cd 21 char led_dimm_temp[4];
michaeljkoster 0:9101343a70cd 22
michaeljkoster 0:9101343a70cd 23 pc.printf("light callback\r\n");
michaeljkoster 0:9101343a70cd 24
michaeljkoster 0:9101343a70cd 25 if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET)
michaeljkoster 0:9101343a70cd 26 {
michaeljkoster 0:9101343a70cd 27 coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT);
michaeljkoster 0:9101343a70cd 28
michaeljkoster 0:9101343a70cd 29 led_state = led_dimm * 100;
michaeljkoster 0:9101343a70cd 30 sprintf(led_dimm_temp, "%d", led_state);
michaeljkoster 0:9101343a70cd 31
michaeljkoster 0:9101343a70cd 32 coap_res_ptr->payload_len = strlen(led_dimm_temp);
michaeljkoster 0:9101343a70cd 33 coap_res_ptr->payload_ptr = (uint8_t*)led_dimm_temp;
michaeljkoster 0:9101343a70cd 34 sn_nsdl_send_coap_message(address, coap_res_ptr);
michaeljkoster 0:9101343a70cd 35 }
michaeljkoster 0:9101343a70cd 36 else if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_PUT)
michaeljkoster 0:9101343a70cd 37 {
michaeljkoster 0:9101343a70cd 38 memcpy(led_dimm_temp, (char *)received_coap_ptr->payload_ptr, received_coap_ptr->payload_len);
michaeljkoster 0:9101343a70cd 39
michaeljkoster 0:9101343a70cd 40 led_dimm_temp[received_coap_ptr->payload_len] = '\0';
michaeljkoster 0:9101343a70cd 41
michaeljkoster 0:9101343a70cd 42 led_dimm = atof(led_dimm_temp);
michaeljkoster 0:9101343a70cd 43 led_dimm = led_dimm/100;
michaeljkoster 0:9101343a70cd 44
michaeljkoster 0:9101343a70cd 45 //led1.write(led_dimm);
michaeljkoster 0:9101343a70cd 46 led2.write(led_dimm);
michaeljkoster 0:9101343a70cd 47 led3.write(led_dimm);
michaeljkoster 0:9101343a70cd 48 //led4.write(led_dimm);
michaeljkoster 0:9101343a70cd 49
michaeljkoster 0:9101343a70cd 50 coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CHANGED);
michaeljkoster 0:9101343a70cd 51 sn_nsdl_send_coap_message(address, coap_res_ptr);
michaeljkoster 0:9101343a70cd 52 }
michaeljkoster 0:9101343a70cd 53
michaeljkoster 0:9101343a70cd 54 sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr);
michaeljkoster 0:9101343a70cd 55 return 0;
michaeljkoster 0:9101343a70cd 56 }
michaeljkoster 0:9101343a70cd 57
michaeljkoster 0:9101343a70cd 58 int create_light_resource(sn_nsdl_resource_info_s *resource_ptr)
michaeljkoster 0:9101343a70cd 59 {
michaeljkoster 0:9101343a70cd 60 nsdl_create_dynamic_resource(resource_ptr, sizeof(LIGHT_RES_ID)-1, (uint8_t*)LIGHT_RES_ID, 0, 0, 0, &light_resource_cb, (SN_GRS_GET_ALLOWED | SN_GRS_PUT_ALLOWED));
michaeljkoster 0:9101343a70cd 61 return 0;
michaeljkoster 0:9101343a70cd 62 }