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

nsdl_support.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 // NSDL library support functions
michaeljkoster 0:9101343a70cd 2
michaeljkoster 0:9101343a70cd 3 #include "mbed.h"
michaeljkoster 0:9101343a70cd 4 #include "nsdl_support.h"
michaeljkoster 0:9101343a70cd 5 #include "mbed.h"
michaeljkoster 0:9101343a70cd 6 #include "rtos.h"
michaeljkoster 0:9101343a70cd 7 #include "EthernetInterface.h"
michaeljkoster 0:9101343a70cd 8
michaeljkoster 0:9101343a70cd 9 extern Serial pc;
michaeljkoster 0:9101343a70cd 10 extern EthernetInterface eth;
michaeljkoster 0:9101343a70cd 11 extern Endpoint nsp;
michaeljkoster 0:9101343a70cd 12 extern UDPSocket server;
michaeljkoster 0:9101343a70cd 13 extern char endpoint_name[16];
michaeljkoster 0:9101343a70cd 14 extern uint8_t ep_type[];
michaeljkoster 0:9101343a70cd 15 extern uint8_t lifetime_ptr[];
michaeljkoster 0:9101343a70cd 16
michaeljkoster 0:9101343a70cd 17 /* The number of seconds between NSP registration messages */
michaeljkoster 0:9101343a70cd 18 #define RD_UPDATE_PERIOD 60
michaeljkoster 0:9101343a70cd 19
michaeljkoster 0:9101343a70cd 20 void *nsdl_alloc(uint16_t size)
michaeljkoster 0:9101343a70cd 21 {
michaeljkoster 0:9101343a70cd 22 return malloc(size);
michaeljkoster 0:9101343a70cd 23 }
michaeljkoster 0:9101343a70cd 24
michaeljkoster 0:9101343a70cd 25 void nsdl_free(void* ptr_to_free)
michaeljkoster 0:9101343a70cd 26 {
michaeljkoster 0:9101343a70cd 27 free(ptr_to_free);
michaeljkoster 0:9101343a70cd 28 }
michaeljkoster 0:9101343a70cd 29
michaeljkoster 0:9101343a70cd 30 /*
michaeljkoster 0:9101343a70cd 31 * Create a static resoure
michaeljkoster 0:9101343a70cd 32 * Only get is allowed
michaeljkoster 0:9101343a70cd 33 */
michaeljkoster 0:9101343a70cd 34 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)
michaeljkoster 0:9101343a70cd 35 {
michaeljkoster 0:9101343a70cd 36 resource_structure->access = SN_GRS_GET_ALLOWED;
michaeljkoster 0:9101343a70cd 37 resource_structure->mode = SN_GRS_STATIC;
michaeljkoster 0:9101343a70cd 38 resource_structure->pathlen = pt_len;
michaeljkoster 0:9101343a70cd 39 resource_structure->path = pt;
michaeljkoster 0:9101343a70cd 40 resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
michaeljkoster 0:9101343a70cd 41 resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
michaeljkoster 0:9101343a70cd 42 resource_structure->resource = rsc;
michaeljkoster 0:9101343a70cd 43 resource_structure->resourcelen = rsc_len;
michaeljkoster 0:9101343a70cd 44 sn_nsdl_create_resource(resource_structure);
michaeljkoster 0:9101343a70cd 45 }
michaeljkoster 0:9101343a70cd 46
michaeljkoster 0:9101343a70cd 47 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)
michaeljkoster 0:9101343a70cd 48 {
michaeljkoster 0:9101343a70cd 49 resource_structure->access = (sn_grs_resource_acl_e)access_right;
michaeljkoster 0:9101343a70cd 50 resource_structure->resource = 0;
michaeljkoster 0:9101343a70cd 51 resource_structure->resourcelen = 0;
michaeljkoster 0:9101343a70cd 52 resource_structure->sn_grs_dyn_res_callback = callback_ptr;
michaeljkoster 0:9101343a70cd 53 resource_structure->mode = SN_GRS_DYNAMIC;
michaeljkoster 0:9101343a70cd 54 resource_structure->pathlen = pt_len;
michaeljkoster 0:9101343a70cd 55 resource_structure->path = pt;
michaeljkoster 0:9101343a70cd 56 resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
michaeljkoster 0:9101343a70cd 57 resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
michaeljkoster 0:9101343a70cd 58 resource_structure->resource_parameters_ptr->observable = is_observable;
michaeljkoster 0:9101343a70cd 59 sn_nsdl_create_resource(resource_structure);
michaeljkoster 0:9101343a70cd 60 }
michaeljkoster 0:9101343a70cd 61
michaeljkoster 0:9101343a70cd 62 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)
michaeljkoster 0:9101343a70cd 63 {
michaeljkoster 0:9101343a70cd 64 if (NULL == endpoint_structure)
michaeljkoster 0:9101343a70cd 65 {
michaeljkoster 0:9101343a70cd 66 endpoint_structure = (sn_nsdl_ep_parameters_s*)nsdl_alloc(sizeof(sn_nsdl_ep_parameters_s));
michaeljkoster 0:9101343a70cd 67 }
michaeljkoster 0:9101343a70cd 68 if (endpoint_structure)
michaeljkoster 0:9101343a70cd 69 {
michaeljkoster 0:9101343a70cd 70 memset(endpoint_structure, 0, sizeof(sn_nsdl_ep_parameters_s));
michaeljkoster 0:9101343a70cd 71 endpoint_structure->endpoint_name_ptr = name;
michaeljkoster 0:9101343a70cd 72 endpoint_structure->endpoint_name_len = strlen((char*)name);
michaeljkoster 0:9101343a70cd 73 endpoint_structure->type_ptr = typename_ptr;
michaeljkoster 0:9101343a70cd 74 endpoint_structure->type_len = strlen((char*)typename_ptr);
michaeljkoster 0:9101343a70cd 75 endpoint_structure->lifetime_ptr = lifetime_ptr;
michaeljkoster 0:9101343a70cd 76 endpoint_structure->lifetime_len = strlen((char*)lifetime_ptr);
michaeljkoster 0:9101343a70cd 77 }
michaeljkoster 0:9101343a70cd 78 return endpoint_structure;
michaeljkoster 0:9101343a70cd 79 }
michaeljkoster 0:9101343a70cd 80
michaeljkoster 0:9101343a70cd 81 void nsdl_clean_register_endpoint(sn_nsdl_ep_parameters_s **endpoint_structure)
michaeljkoster 0:9101343a70cd 82 {
michaeljkoster 0:9101343a70cd 83 if (*endpoint_structure)
michaeljkoster 0:9101343a70cd 84 {
michaeljkoster 0:9101343a70cd 85 nsdl_free(*endpoint_structure);
michaeljkoster 0:9101343a70cd 86 *endpoint_structure = NULL;
michaeljkoster 0:9101343a70cd 87 }
michaeljkoster 0:9101343a70cd 88 }
michaeljkoster 0:9101343a70cd 89
michaeljkoster 0:9101343a70cd 90 static uint8_t tx_cb(sn_nsdl_capab_e protocol, uint8_t *data_ptr, uint16_t data_len, sn_nsdl_addr_s *address_ptr)
michaeljkoster 0:9101343a70cd 91 {
michaeljkoster 0:9101343a70cd 92 pc.printf("TX callback!\n\rSending %d bytes\r\n", data_len);
michaeljkoster 0:9101343a70cd 93
michaeljkoster 0:9101343a70cd 94 if(server.sendTo(nsp, (char*)data_ptr, data_len) != data_len)
michaeljkoster 0:9101343a70cd 95 pc.printf("sending failed\n\r");
michaeljkoster 0:9101343a70cd 96
michaeljkoster 0:9101343a70cd 97 return 1;
michaeljkoster 0:9101343a70cd 98 }
michaeljkoster 0:9101343a70cd 99
michaeljkoster 0:9101343a70cd 100 static uint8_t rx_cb(sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr)
michaeljkoster 0:9101343a70cd 101 {
michaeljkoster 0:9101343a70cd 102 pc.printf("RX callback!\r\n");
michaeljkoster 0:9101343a70cd 103 return 0;
michaeljkoster 0:9101343a70cd 104 }
michaeljkoster 0:9101343a70cd 105
michaeljkoster 0:9101343a70cd 106 static void registration_update_thread(void const *args)
michaeljkoster 0:9101343a70cd 107 {
michaeljkoster 0:9101343a70cd 108 sn_nsdl_ep_parameters_s *endpoint_ptr = NULL;
michaeljkoster 0:9101343a70cd 109
michaeljkoster 0:9101343a70cd 110 while(true)
michaeljkoster 0:9101343a70cd 111 {
michaeljkoster 0:9101343a70cd 112 wait(RD_UPDATE_PERIOD);
michaeljkoster 0:9101343a70cd 113 endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t*)endpoint_name, ep_type, lifetime_ptr);
michaeljkoster 0:9101343a70cd 114 if(sn_nsdl_register_endpoint(endpoint_ptr) != 0)
michaeljkoster 0:9101343a70cd 115 pc.printf("NSP re-registering failed\r\n");
michaeljkoster 0:9101343a70cd 116 else
michaeljkoster 0:9101343a70cd 117 pc.printf("NSP re-registering OK\r\n");
michaeljkoster 0:9101343a70cd 118 nsdl_clean_register_endpoint(&endpoint_ptr);
michaeljkoster 0:9101343a70cd 119 }
michaeljkoster 0:9101343a70cd 120 }
michaeljkoster 0:9101343a70cd 121
michaeljkoster 0:9101343a70cd 122 void nsdl_init()
michaeljkoster 0:9101343a70cd 123 {
michaeljkoster 0:9101343a70cd 124 uint8_t nsp_addr[4];
michaeljkoster 0:9101343a70cd 125 sn_nsdl_mem_s memory_cbs;
michaeljkoster 0:9101343a70cd 126
michaeljkoster 0:9101343a70cd 127 /* Initialize libNsdl */
michaeljkoster 0:9101343a70cd 128 memory_cbs.sn_nsdl_alloc = &nsdl_alloc;
michaeljkoster 0:9101343a70cd 129 memory_cbs.sn_nsdl_free = &nsdl_free;
michaeljkoster 0:9101343a70cd 130 if(sn_nsdl_init(&tx_cb, &rx_cb, &memory_cbs) == -1)
michaeljkoster 0:9101343a70cd 131 pc.printf("libNsdl init failed\r\n");
michaeljkoster 0:9101343a70cd 132 else
michaeljkoster 0:9101343a70cd 133 pc.printf("libNsdl init done\r\n");
michaeljkoster 0:9101343a70cd 134
michaeljkoster 0:9101343a70cd 135 /* Set nsp address for library */
michaeljkoster 0:9101343a70cd 136 set_NSP_address(nsp_addr, 5683, SN_NSDL_ADDRESS_TYPE_IPV4);
michaeljkoster 0:9101343a70cd 137 }
michaeljkoster 0:9101343a70cd 138
michaeljkoster 0:9101343a70cd 139 void nsdl_event_loop()
michaeljkoster 0:9101343a70cd 140 {
michaeljkoster 0:9101343a70cd 141 Thread registration_thread(registration_update_thread);
michaeljkoster 0:9101343a70cd 142
michaeljkoster 0:9101343a70cd 143 sn_nsdl_addr_s received_packet_address;
michaeljkoster 0:9101343a70cd 144 uint8_t received_address[4];
michaeljkoster 0:9101343a70cd 145 char buffer[1024];
michaeljkoster 0:9101343a70cd 146 Endpoint from;
michaeljkoster 0:9101343a70cd 147
michaeljkoster 0:9101343a70cd 148 memset(&received_packet_address, 0, sizeof(sn_nsdl_addr_s));
michaeljkoster 0:9101343a70cd 149 received_packet_address.addr_ptr = received_address;
michaeljkoster 0:9101343a70cd 150
michaeljkoster 0:9101343a70cd 151 while(1)
michaeljkoster 0:9101343a70cd 152 {
michaeljkoster 0:9101343a70cd 153 int n = server.receiveFrom(from, buffer, sizeof(buffer));
michaeljkoster 0:9101343a70cd 154 if (n < 0)
michaeljkoster 0:9101343a70cd 155 {
michaeljkoster 0:9101343a70cd 156 pc.printf("Socket error\n\r");
michaeljkoster 0:9101343a70cd 157 }
michaeljkoster 0:9101343a70cd 158 else
michaeljkoster 0:9101343a70cd 159 {
michaeljkoster 0:9101343a70cd 160 pc.printf("Received %d bytes\r\n", n);
michaeljkoster 0:9101343a70cd 161 sn_nsdl_process_coap((uint8_t*)buffer, n, &received_packet_address);
michaeljkoster 0:9101343a70cd 162 }
michaeljkoster 0:9101343a70cd 163 }
michaeljkoster 0:9101343a70cd 164 }
michaeljkoster 0:9101343a70cd 165
michaeljkoster 0:9101343a70cd 166