Red Hat Summit NanoService Demo for LPC1768 App Board using OMA Lightweight Objects
Dependencies: Beep C12832_lcd EthernetInterface LM75B MMA7660 mbed-rtos mbed nsdl_lib
Fork of LWM2M_NanoService_Ethernet by
resources/light.cpp
- Committer:
- sam_grove
- Date:
- 2014-04-28
- Revision:
- 29:7512729587cf
- Parent:
- 14:5acd59fec679
- Child:
- 31:7ce5bef2d369
File content as of revision 29:7512729587cf:
// Light resource implementation #include "mbed.h" #include "nsdl_support.h" #include "light.h" #define LIGHT_RES_ID "311/0/5851" #define LIGHT_FLASH_ID "311/0/5850" extern Serial pc; static PwmOut led2(LED2); static PwmOut led3(LED3); static DigitalOut out1(LED1); static Ticker flash; static void flashHandler(void) { out1 = !out1; } /* Only GET and PUT method allowed */ static uint8_t light_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto) { sn_coap_hdr_s *coap_res_ptr = 0; static float led_dimm = 0; int led_state = 0; char led_dimm_temp[4]; pc.printf("light dimmer callback\r\n"); if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET) { coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT); led_state = led_dimm * 100; sprintf(led_dimm_temp, "%d", led_state); coap_res_ptr->payload_len = strlen(led_dimm_temp); coap_res_ptr->payload_ptr = (uint8_t*)led_dimm_temp; sn_nsdl_send_coap_message(address, coap_res_ptr); } else if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_PUT) { memcpy(led_dimm_temp, (char *)received_coap_ptr->payload_ptr, received_coap_ptr->payload_len); led_dimm_temp[received_coap_ptr->payload_len] = '\0'; led_dimm = atof(led_dimm_temp); led_dimm = led_dimm/100; led2.write(led_dimm); led3.write(led_dimm); coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CHANGED); sn_nsdl_send_coap_message(address, coap_res_ptr); } sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr); return 0; } /* Only GET and PUT method allowed */ static uint8_t light_flash_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto) { sn_coap_hdr_s *coap_res_ptr = 0; static uint8_t flash_state = '0'; pc.printf("flash callback\r\n"); if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET) { coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT); coap_res_ptr->payload_len = 1; coap_res_ptr->payload_ptr = &flash_state; sn_nsdl_send_coap_message(address, coap_res_ptr); } else if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_PUT) { if(received_coap_ptr->payload_len) { if(*(received_coap_ptr->payload_ptr) == '1') { flash.attach(&flashHandler, 1.0f); flash_state = '1'; } else if(*(received_coap_ptr->payload_ptr) == '0') { out1 = 0; flash.detach(); flash_state = '0'; } coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CHANGED); sn_nsdl_send_coap_message(address, coap_res_ptr); } } sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr); return 0; } int create_light_resource(sn_nsdl_resource_info_s *resource_ptr) { 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)); nsdl_create_dynamic_resource(resource_ptr, sizeof(LIGHT_FLASH_ID)-1, (uint8_t*)LIGHT_FLASH_ID, 0, 0, 0, &light_flash_resource_cb, (SN_GRS_GET_ALLOWED | SN_GRS_PUT_ALLOWED)); return 0; }