File content as of revision 5:6adec9967f93:

#include "mbed.h"
#include "config.h"
#include "debug.h"

// Multitech Cellular includes
#include "Cellular.h"
#include "Endpoint.h"
#include "IPStack.h"
#include "MTSSerialFlowControl.h"

// NanoService includes
#include "sn_nsdl.h"
#include "sn_coap_header.h"
#include "sn_coap_protocol.h"
#include "sn_nsdl_lib.h"
#include <stdint.h>

using namespace mts;

Cellular* cellular;
Endpoint nsp;

// ****************************************************************************
// Cellular initialization

static void cellular_init()
{
    //Setup serial interface to radio
    MTSSerialFlowControl* serial = new MTSSerialFlowControl(PTD3, PTD2, PTA12, PTC8);
    serial->baud(115200);

    //Setup Cellular class
    cellular = Cellular::getInstance();
    cellular->init(serial, PTA4, PTC9); //DCD and DTR pins for KL46Z

    //Run status and configuration commands
    DEBUG("\n\r////Start Status and Configuration Commands////");
    DEBUG("Command Test: %s", getCodeNames(cellular->test()).c_str()); //Make sure you can talk to the radio
    DEBUG("Signal Strength: %d", cellular->getSignalStrength()); //Check the signal strength should be above 8
    
    //Makes sure you are reistered with cell
    DEBUG("Registration State: %s", Cellular::getRegistrationNames(cellular->getRegistration()).c_str()); 
    
    //Shows example of how to send other commands, look at AT command guide for more info
    DEBUG("Send Basic Command (AT): %s", getCodeNames(cellular->sendBasicCommand("AT", 1000)).c_str());
    DEBUG("Send Command (AT+CSQ): %s", cellular->sendCommand("AT+CSQ", 1000).c_str());

    //Start Test
    DEBUG("\n\r////Start Network Connectivity Test////");
    DEBUG("Set APN: %s", getCodeNames(cellular->setApn(CELLULAR_APN)).c_str()); //Use APN from service provider!!!

    //Setup a data connection
    DEBUG("Attempting to Connect, this may take some time...");
    while (!cellular->connect()) {
        DEBUG("Failed to connect... Trying again.");
        wait(1);
    }
    DEBUG("Connected to the Network!");

    //Try pinging default server "8.8.8.8" (Google's DNS)
    DEBUG("Ping Valid: %s", cellular->ping() ? "true" : "false");
    wait(3);

}

// ****************************************************************************
// NSP initialization

static void nsp_init()
{
    nsp.set_address(NSP_ADDRESS, NSP_PORT);
    
//    DEBUG("name: %s", endpoint_name);
    DEBUG("NSP Location: coap://%s:%d\n", NSP_ADDRESS, NSP_PORT);
    
    // Bind the port
    cellular->bind(EP_PORT);

    // Open a TCP connection
    while (!cellular->open(NSP_ADDRESS, NSP_PORT, mts::IPStack::TCP)) 
    {
        DEBUG("TCP connection failed.");
        wait(3);
    } 
    DEBUG("TCP connection to NSP successful.");  
}

extern "C" void *nsdl_alloc(uint16_t size)
{
    return malloc(size);
}

extern "C" void nsdl_free(void* ptr_to_free)
{
    free(ptr_to_free);
}

static uint8_t tx_cb(sn_nsdl_capab_e protocol, uint8_t *data_ptr, uint16_t data_len, sn_nsdl_addr_s *address_ptr)
{
    DEBUG("TX callback!\n\rSending %d bytes", data_len);

    if(cellular->write((char*)data_ptr, data_len, -1) != data_len)
        DEBUG("sending failed");

    return 1;
}

static uint8_t rx_cb(sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr)
{
    DEBUG("RX callback!");
    return 0;
}

void nsdl_init()
{
    sn_nsdl_mem_s memory_cbs;
    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) {
        DEBUG("libNsdl init failed");
    } else {
        DEBUG("libNsdl init done");
    }
}

void socket_event_loop()
{
    //sn_nsdl_addr_s received_packet_address;
    //uint8_t received_address[4];
    char buffer[2048];

    //memset(&received_packet_address, 0, sizeof(sn_nsdl_addr_s));
    //received_packet_address.addr_ptr = received_address; 

    DEBUG("Starting socket read loop...");
    while(1)
    {
        int n = cellular->read(buffer, sizeof(buffer), -1);
        if (n < 0)
        {
            DEBUG("Socket error\n\r");
        }
        else
        {   
            DEBUG("Received %d bytes\r\n", n);
            //sn_nsdl_process_coap((uint8_t*)buffer, n, &received_packet_address);
        }
    }
}

int main() 
{
    printf("\r\n*****************************************************************************\r\n");
    DEBUG("NanoService Example for KL46Z + Multitech Cellular");

    // Inititalize the Cellular modem
    cellular_init();
    
    // Bind the socket and configure NSP settings
    nsp_init();
    
    // Initalize NanoService library
    nsdl_init();
     
    // Start socket listening loop
    socket_event_loop();
       
}