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NanoService Device Library Hello World
Dependencies: Beep C12832_lcd EthernetInterface LM75B MMA7660 mbed-rtos mbed nsdl_lib
nsdl_support.cpp
- Committer:
- sam_grove
- Date:
- 2014-08-04
- Revision:
- 8:cdf868ccae03
- Parent:
- 7:6b068978be9a
File content as of revision 8:cdf868ccae03:
// NSDL library support functions #include "mbed.h" #include "nsdl_support.h" #include "mbed.h" #include "rtos.h" #include "EthernetInterface.h" extern Serial pc; extern EthernetInterface eth; extern Endpoint nsp; extern UDPSocket server; extern char endpoint_name[16]; extern uint8_t ep_type[]; extern uint8_t lifetime_ptr[]; /* The number of seconds between NSP registration messages */ #define RD_UPDATE_PERIOD 60 void *nsdl_alloc(uint16_t size) { return malloc(size); } void nsdl_free(void* ptr_to_free) { free(ptr_to_free); } /* * Create a static resoure * Only get is allowed */ void nsdl_create_static_resource(sn_nsdl_resource_info_s *resource_structure, uint16_t pt_len, uint8_t *pt, uint16_t rpp_len, uint8_t *rpp_ptr, uint8_t *rsc, uint16_t rsc_len) { resource_structure->access = SN_GRS_GET_ALLOWED; resource_structure->mode = SN_GRS_STATIC; resource_structure->pathlen = pt_len; resource_structure->path = pt; resource_structure->resource_parameters_ptr->resource_type_len = rpp_len; resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr; resource_structure->resource = rsc; resource_structure->resourcelen = rsc_len; sn_nsdl_create_resource(resource_structure); } void nsdl_create_dynamic_resource(sn_nsdl_resource_info_s *resource_structure, uint16_t pt_len, uint8_t *pt, uint16_t rpp_len, uint8_t *rpp_ptr, uint8_t is_observable, sn_grs_dyn_res_callback_t callback_ptr, int access_right) { resource_structure->access = (sn_grs_resource_acl_e)access_right; resource_structure->resource = 0; resource_structure->resourcelen = 0; resource_structure->sn_grs_dyn_res_callback = callback_ptr; resource_structure->mode = SN_GRS_DYNAMIC; resource_structure->pathlen = pt_len; resource_structure->path = pt; resource_structure->resource_parameters_ptr->resource_type_len = rpp_len; resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr; resource_structure->resource_parameters_ptr->observable = is_observable; sn_nsdl_create_resource(resource_structure); } sn_nsdl_ep_parameters_s* nsdl_init_register_endpoint(sn_nsdl_ep_parameters_s *endpoint_structure, uint8_t* name, uint8_t* typename_ptr, uint8_t *lifetime_ptr) { if (NULL == endpoint_structure) { endpoint_structure = (sn_nsdl_ep_parameters_s*)nsdl_alloc(sizeof(sn_nsdl_ep_parameters_s)); } if (endpoint_structure) { memset(endpoint_structure, 0, sizeof(sn_nsdl_ep_parameters_s)); endpoint_structure->endpoint_name_ptr = name; endpoint_structure->endpoint_name_len = strlen((char*)name); endpoint_structure->type_ptr = typename_ptr; endpoint_structure->type_len = strlen((char*)typename_ptr); endpoint_structure->lifetime_ptr = lifetime_ptr; endpoint_structure->lifetime_len = strlen((char*)lifetime_ptr); } return endpoint_structure; } void nsdl_clean_register_endpoint(sn_nsdl_ep_parameters_s **endpoint_structure) { if (*endpoint_structure) { nsdl_free(*endpoint_structure); *endpoint_structure = NULL; } } static uint8_t tx_cb(sn_nsdl_capab_e protocol, uint8_t *data_ptr, uint16_t data_len, sn_nsdl_addr_s *address_ptr) { pc.printf("TX callback!\n\rSending %d bytes\r\n", data_len); if(server.sendTo(nsp, (char*)data_ptr, data_len) != data_len) pc.printf("sending failed\n\r"); return 1; } static uint8_t rx_cb(sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr) { pc.printf("RX callback!\r\n"); return 0; } static void registration_update_thread(void const *args) { sn_nsdl_ep_parameters_s *endpoint_ptr = NULL; while(true) { wait(RD_UPDATE_PERIOD); endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t*)endpoint_name, ep_type, lifetime_ptr); if(sn_nsdl_register_endpoint(endpoint_ptr) != 0) pc.printf("NSP re-registering failed\r\n"); else pc.printf("NSP re-registering OK\r\n"); nsdl_clean_register_endpoint(&endpoint_ptr); } } void nsdl_init() { uint8_t nsp_addr[4]; sn_nsdl_mem_s memory_cbs; /* Initialize libNsdl */ memory_cbs.sn_nsdl_alloc = &nsdl_alloc; memory_cbs.sn_nsdl_free = &nsdl_free; if(sn_nsdl_init(&tx_cb, &rx_cb, &memory_cbs) == -1) pc.printf("libNsdl init failed\r\n"); else pc.printf("libNsdl init done\r\n"); /* Set nsp address for library */ set_NSP_address(nsp_addr, 5683, SN_NSDL_ADDRESS_TYPE_IPV4); } void nsdl_event_loop() { Thread registration_thread(registration_update_thread); sn_nsdl_addr_s received_packet_address; uint8_t received_address[4]; char buffer[1024]; Endpoint from; memset(&received_packet_address, 0, sizeof(sn_nsdl_addr_s)); received_packet_address.addr_ptr = received_address; while(1) { int n = server.receiveFrom(from, buffer, sizeof(buffer)); if (n < 0) { pc.printf("Socket error\n\r"); } else { pc.printf("Received %d bytes\r\n", n); sn_nsdl_process_coap((uint8_t*)buffer, n, &received_packet_address); } } }