Doug Anson / mbedEndpointNetwork_Ublox

Cellular (U-Blox) network support for mbedConnectorInterface.

Dependencies:   libnsdl C027_Support mbed-rtos

Dependents:   mbed-3g-sample

NSDL/nsdl_support.cpp@8:d6c30a9a5ebe, 2015-12-07 (annotated)

Committer:
ansond
Date:
Mon Dec 07 17:33:01 2015 +0000
Revision:
8:d6c30a9a5ebe
Parent:
0:d2ac2f05a621 
updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ansond 0:d2ac2f05a621 1 // NSDL library support functions
ansond 0:d2ac2f05a621 2
ansond 0:d2ac2f05a621 3 #include "mbed.h"
ansond 0:d2ac2f05a621 4 #include "nsdl_support.h"
ansond 0:d2ac2f05a621 5
ansond 0:d2ac2f05a621 6 #include "mbedConnectorInterface.h"
ansond 0:d2ac2f05a621 7
ansond 0:d2ac2f05a621 8 // we have to redefine DBG as its used differently here...
ansond 0:d2ac2f05a621 9 #ifdef DBG
ansond 0:d2ac2f05a621 10 #undef DBG
ansond 0:d2ac2f05a621 11 #endif
ansond 0:d2ac2f05a621 12 #define DBG std::printf
ansond 0:d2ac2f05a621 13
ansond 0:d2ac2f05a621 14 #include "mbed.h"
ansond 0:d2ac2f05a621 15 #include "rtos.h"
ansond 0:d2ac2f05a621 16 #include "UDPSocket.h"
ansond 0:d2ac2f05a621 17 #include "Endpoint.h"
ansond 0:d2ac2f05a621 18
ansond 0:d2ac2f05a621 19 Endpoint nsp;
ansond 0:d2ac2f05a621 20 UDPSocket server;
ansond 0:d2ac2f05a621 21
ansond 0:d2ac2f05a621 22 char null_endpoint_name[] = "";
ansond 0:d2ac2f05a621 23 char null_domain[] = "";
ansond 0:d2ac2f05a621 24 uint8_t null_ep_type[] = "";
ansond 0:d2ac2f05a621 25 uint8_t null_lifetime_ptr[] = "";
ansond 0:d2ac2f05a621 26 bool endpoint_registered = false;
ansond 0:d2ac2f05a621 27
ansond 0:d2ac2f05a621 28 void *nsdl_alloc(uint16_t size) {
ansond 0:d2ac2f05a621 29 void *chunk = NULL;
ansond 0:d2ac2f05a621 30 if (size > 0) chunk = malloc(size);
ansond 0:d2ac2f05a621 31 if (chunk != NULL && size > 0) memset(chunk,0,size);
ansond 0:d2ac2f05a621 32 return chunk;
ansond 0:d2ac2f05a621 33 }
ansond 0:d2ac2f05a621 34
ansond 0:d2ac2f05a621 35 void nsdl_free(void* ptr_to_free) {
ansond 0:d2ac2f05a621 36 if (ptr_to_free != NULL) free(ptr_to_free);
ansond 0:d2ac2f05a621 37 }
ansond 0:d2ac2f05a621 38
ansond 0:d2ac2f05a621 39 /*
ansond 0:d2ac2f05a621 40 * Create a static resoure
ansond 0:d2ac2f05a621 41 * Only get is allowed
ansond 0:d2ac2f05a621 42 */
ansond 0:d2ac2f05a621 43 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)
ansond 0:d2ac2f05a621 44 {
ansond 0:d2ac2f05a621 45 resource_structure->access = SN_GRS_GET_ALLOWED;
ansond 0:d2ac2f05a621 46 resource_structure->mode = SN_GRS_STATIC;
ansond 0:d2ac2f05a621 47 resource_structure->pathlen = pt_len;
ansond 0:d2ac2f05a621 48 resource_structure->path = pt;
ansond 0:d2ac2f05a621 49 resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
ansond 0:d2ac2f05a621 50 resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
ansond 0:d2ac2f05a621 51 resource_structure->resource = rsc;
ansond 0:d2ac2f05a621 52 resource_structure->resourcelen = rsc_len;
ansond 0:d2ac2f05a621 53 sn_nsdl_create_resource(resource_structure);
ansond 0:d2ac2f05a621 54 }
ansond 0:d2ac2f05a621 55
ansond 0:d2ac2f05a621 56 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)
ansond 0:d2ac2f05a621 57 {
ansond 0:d2ac2f05a621 58 resource_structure->access = (sn_grs_resource_acl_e)access_right;
ansond 0:d2ac2f05a621 59 resource_structure->resource = 0;
ansond 0:d2ac2f05a621 60 resource_structure->resourcelen = 0;
ansond 0:d2ac2f05a621 61 resource_structure->sn_grs_dyn_res_callback = callback_ptr;
ansond 0:d2ac2f05a621 62 resource_structure->mode = SN_GRS_DYNAMIC;
ansond 0:d2ac2f05a621 63 resource_structure->pathlen = pt_len;
ansond 0:d2ac2f05a621 64 resource_structure->path = pt;
ansond 0:d2ac2f05a621 65 resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
ansond 0:d2ac2f05a621 66 resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
ansond 0:d2ac2f05a621 67 resource_structure->resource_parameters_ptr->observable = is_observable;
ansond 0:d2ac2f05a621 68 sn_nsdl_create_resource(resource_structure);
ansond 0:d2ac2f05a621 69 }
ansond 0:d2ac2f05a621 70
ansond 0:d2ac2f05a621 71 sn_nsdl_ep_parameters_s* nsdl_init_register_endpoint(sn_nsdl_ep_parameters_s *endpoint_structure, uint8_t *domain, uint8_t* name, uint8_t* typename_ptr, uint8_t *lifetime_ptr) {
ansond 0:d2ac2f05a621 72 if (endpoint_structure == NULL) {
ansond 0:d2ac2f05a621 73 endpoint_structure = (sn_nsdl_ep_parameters_s*)nsdl_alloc(sizeof(sn_nsdl_ep_parameters_s));
ansond 0:d2ac2f05a621 74 }
ansond 0:d2ac2f05a621 75
ansond 0:d2ac2f05a621 76 if (endpoint_structure != NULL) {
ansond 0:d2ac2f05a621 77 memset(endpoint_structure, 0, sizeof(sn_nsdl_ep_parameters_s));
ansond 0:d2ac2f05a621 78 endpoint_structure->endpoint_name_ptr = name;
ansond 0:d2ac2f05a621 79 endpoint_structure->endpoint_name_len = strlen((char*)name);
ansond 0:d2ac2f05a621 80 endpoint_structure->domain_name_ptr = domain;
ansond 0:d2ac2f05a621 81 endpoint_structure->domain_name_len = strlen((char *)domain);
ansond 0:d2ac2f05a621 82 endpoint_structure->type_ptr = typename_ptr;
ansond 0:d2ac2f05a621 83 endpoint_structure->type_len = strlen((char*)typename_ptr);
ansond 0:d2ac2f05a621 84 endpoint_structure->lifetime_ptr = lifetime_ptr;
ansond 0:d2ac2f05a621 85 endpoint_structure->lifetime_len = strlen((char*)lifetime_ptr);
ansond 0:d2ac2f05a621 86 }
ansond 0:d2ac2f05a621 87
ansond 0:d2ac2f05a621 88 return endpoint_structure;
ansond 0:d2ac2f05a621 89 }
ansond 0:d2ac2f05a621 90
ansond 0:d2ac2f05a621 91 void nsdl_clean_register_endpoint(sn_nsdl_ep_parameters_s **endpoint_structure) {
ansond 0:d2ac2f05a621 92 if (endpoint_structure != NULL) {
ansond 0:d2ac2f05a621 93 if (*endpoint_structure != NULL) {
ansond 0:d2ac2f05a621 94 nsdl_free(*endpoint_structure);
ansond 0:d2ac2f05a621 95 *endpoint_structure = NULL;
ansond 0:d2ac2f05a621 96 }
ansond 0:d2ac2f05a621 97 }
ansond 0:d2ac2f05a621 98 }
ansond 0:d2ac2f05a621 99
ansond 0:d2ac2f05a621 100 static uint8_t tx_cb(sn_nsdl_capab_e protocol, uint8_t *data_ptr, uint16_t data_len, sn_nsdl_addr_s *address_ptr) {
ansond 0:d2ac2f05a621 101 //DBG("NSP: sending %d bytes...\r\n",data_len);
ansond 0:d2ac2f05a621 102 int sent = server.sendTo(nsp, (char*)data_ptr, data_len);
ansond 0:d2ac2f05a621 103 return 1;
ansond 0:d2ac2f05a621 104 }
ansond 0:d2ac2f05a621 105
ansond 0:d2ac2f05a621 106 static uint8_t rx_cb(sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr) {
ansond 0:d2ac2f05a621 107 // Rx callback process it...
ansond 0:d2ac2f05a621 108 //DBG("NSP: received data. processing...\r\n");
ansond 0:d2ac2f05a621 109 return 0;
ansond 0:d2ac2f05a621 110 }
ansond 0:d2ac2f05a621 111
ansond 0:d2ac2f05a621 112 void register_endpoint(bool init) {
ansond 0:d2ac2f05a621 113 sn_nsdl_ep_parameters_s *endpoint_ptr = NULL;
ansond 0:d2ac2f05a621 114 if (init) {
ansond 0:d2ac2f05a621 115 endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t *)domain_name, (uint8_t*)endpoint_name, ep_type, lifetime_ptr);
ansond 0:d2ac2f05a621 116 if(sn_nsdl_register_endpoint(endpoint_ptr) != 0) {
ansond 0:d2ac2f05a621 117 DBG("NSP initial registration failed\r\n");
ansond 0:d2ac2f05a621 118 endpoint_registered = false;
ansond 0:d2ac2f05a621 119 }
ansond 0:d2ac2f05a621 120 else {
ansond 0:d2ac2f05a621 121 //DBG("NSP initial registration OK\r\n");
ansond 0:d2ac2f05a621 122 endpoint_registered = true;
ansond 0:d2ac2f05a621 123 }
ansond 0:d2ac2f05a621 124 }
ansond 0:d2ac2f05a621 125 else {
ansond 0:d2ac2f05a621 126 endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t *)null_domain, (uint8_t*)null_endpoint_name, null_ep_type, null_lifetime_ptr);
ansond 0:d2ac2f05a621 127 if(sn_nsdl_update_registration(endpoint_ptr) != 0) {
ansond 0:d2ac2f05a621 128 DBG("NSP re-registration failed\r\n");
ansond 0:d2ac2f05a621 129 endpoint_registered = false;
ansond 0:d2ac2f05a621 130 }
ansond 0:d2ac2f05a621 131 else {
ansond 0:d2ac2f05a621 132 //DBG("NSP re-registration OK\r\n");
ansond 0:d2ac2f05a621 133 endpoint_registered = true;
ansond 0:d2ac2f05a621 134 }
ansond 0:d2ac2f05a621 135 }
ansond 0:d2ac2f05a621 136 nsdl_clean_register_endpoint(&endpoint_ptr);
ansond 0:d2ac2f05a621 137 }
ansond 0:d2ac2f05a621 138
ansond 0:d2ac2f05a621 139 bool nsdl_endpoint_is_registered(void) {
ansond 0:d2ac2f05a621 140 return endpoint_registered;
ansond 0:d2ac2f05a621 141 }
ansond 0:d2ac2f05a621 142
ansond 0:d2ac2f05a621 143 void registration_update_thread(void const *args) {
ansond 0:d2ac2f05a621 144 while(true) {
ansond 0:d2ac2f05a621 145 Thread::wait(NSP_RD_UPDATE_PERIOD);
ansond 0:d2ac2f05a621 146 register_endpoint(false);
ansond 0:d2ac2f05a621 147 }
ansond 0:d2ac2f05a621 148 }
ansond 0:d2ac2f05a621 149
ansond 0:d2ac2f05a621 150 void nsdl_init() {
ansond 0:d2ac2f05a621 151 sn_nsdl_mem_s memory_cbs;
ansond 0:d2ac2f05a621 152
ansond 0:d2ac2f05a621 153 // initilize the UDP channel
ansond 0:d2ac2f05a621 154 server.init();
ansond 0:d2ac2f05a621 155 server.bind(nsp_port);
ansond 0:d2ac2f05a621 156
ansond 0:d2ac2f05a621 157 /* Initialize libNsdl */
ansond 0:d2ac2f05a621 158 memset(&memory_cbs,0,sizeof(memory_cbs));
ansond 0:d2ac2f05a621 159 memory_cbs.sn_nsdl_alloc = &nsdl_alloc;
ansond 0:d2ac2f05a621 160 memory_cbs.sn_nsdl_free = &nsdl_free;
ansond 0:d2ac2f05a621 161 if(sn_nsdl_init(&tx_cb, &rx_cb, &memory_cbs) == -1) {
ansond 0:d2ac2f05a621 162 DBG("NSP: libNsdl init failed.\r\n");
ansond 0:d2ac2f05a621 163 }
ansond 0:d2ac2f05a621 164 else {
ansond 0:d2ac2f05a621 165 DBG("NSP: libNsdl init successful.\r\n");
ansond 0:d2ac2f05a621 166 }
ansond 0:d2ac2f05a621 167 }
ansond 0:d2ac2f05a621 168
ansond 0:d2ac2f05a621 169 void nsdl_set_nsp_address(void) {
ansond 0:d2ac2f05a621 170 char NSP_address_str[16];
ansond 0:d2ac2f05a621 171
ansond 0:d2ac2f05a621 172 /* Set nsp address for library */
ansond 0:d2ac2f05a621 173 sprintf(NSP_address_str,"%d.%d.%d.%d",NSP_address_bytes[0],NSP_address_bytes[1],NSP_address_bytes[2],NSP_address_bytes[3]);
ansond 0:d2ac2f05a621 174 DBG("NSP: libNsdl NSP_ADDRESS: %s port: %d\r\n",NSP_address_str,nsp_port);
ansond 0:d2ac2f05a621 175 set_NSP_address(NSP_address_bytes, nsp_port, SN_NSDL_ADDRESS_TYPE_IPV4);
ansond 0:d2ac2f05a621 176 nsp.set_address(NSP_address_str,nsp_port);
ansond 0:d2ac2f05a621 177 }
ansond 0:d2ac2f05a621 178
ansond 0:d2ac2f05a621 179 // NSP event loop - spawn a re-registration thread AFTER we have initially registered and begun event processing...
ansond 0:d2ac2f05a621 180 void nsdl_event_loop() {
ansond 0:d2ac2f05a621 181 sn_nsdl_addr_s received_packet_address;
ansond 0:d2ac2f05a621 182 Endpoint from;
ansond 0:d2ac2f05a621 183 uint8_t nsp_received_address[4];
ansond 0:d2ac2f05a621 184 char nsp_buffer[1024];
ansond 0:d2ac2f05a621 185
ansond 0:d2ac2f05a621 186 memset(&received_packet_address, 0, sizeof(sn_nsdl_addr_s));
ansond 0:d2ac2f05a621 187 memset(nsp_received_address, 0, sizeof(nsp_received_address));
ansond 0:d2ac2f05a621 188 received_packet_address.addr_ptr = nsp_received_address;
ansond 0:d2ac2f05a621 189
ansond 0:d2ac2f05a621 190 // start the registration update thread.. it will wait a bit while the endpoint gins up...
ansond 0:d2ac2f05a621 191 Thread registration_thread(registration_update_thread);
ansond 0:d2ac2f05a621 192
ansond 0:d2ac2f05a621 193 // FOREVER: main loop for event processing
ansond 0:d2ac2f05a621 194 while(true) {
ansond 0:d2ac2f05a621 195 //DBG("NSP: waiting for data...\r\n");
ansond 0:d2ac2f05a621 196 int n = server.receiveFrom(from,nsp_buffer,sizeof(nsp_buffer));
ansond 0:d2ac2f05a621 197
ansond 0:d2ac2f05a621 198 //DBG("NSP: received %d bytes... processing..\r\n.",n);
ansond 0:d2ac2f05a621 199 if (n >= 0) sn_nsdl_process_coap((uint8_t*)nsp_buffer,n,&received_packet_address);
ansond 0:d2ac2f05a621 200 }
ansond 0:d2ac2f05a621 201 }