File content as of revision 30:daa499571db7:

#include "common.h"
#include "apndb.h"
#include "io.h"

C027 c027;
MDMSerial mdm;
sigq_t sigQ = {};
char cCellId[8+1];
MDMParser::DevStatus devStatus = {};
MDMParser::NetStatus netStatus = {};

int main()
{
    int ret; size_t c;
    
    puts("Started...");
    io_init();
    puts("IO initialized.");

    c027.mdmPower(true);
    c027.mdmWakeup();
    c027.mdmReset();
    Thread::wait(2000);

    puts("Initializing modem.");
    if (!mdm.init(NULL, &devStatus)) {
        puts("Modem initialization failed. Check your PIN number.");
        return 1;
    }

    puts("Searching for login...");
    apndb_t *apn = apndb_get(devStatus.imsi);
    if (apn == NULL) {
        puts("No APN found. Stop.");
        return 1;
    }
    
    // print out basic device data
    printf("IMEI: %s\n", devStatus.imei);
    printf("IMSI: %s\n", devStatus.imsi);

    // wait until we are connected
    int i = 60;
    while (!mdm.checkNetStatus(&netStatus)) {
        if ((netStatus.reg == MDMParser::REG_DENIED) || (i-- == 0))
            break;
        Thread::wait(2000);
    }

    if ((netStatus.reg == MDMParser::REG_DENIED) || (i == 0)) {
        puts("Network connection failed.");
        return 1;
    }

    printf("Carrier: %s\n", apn->carrier);
    puts("Joining Network.");
    if (mdm.join(apn->apn) == NOIP) {
        puts("Could not join network. Make sure chosen carrier is correct and no credentials are required.");
        return 1;
    }

    // get before starting program as they're permanent
    if ((!strlen(imei())) || (!strlen(iccid()))) {
        puts("Couldn't read IMEI or ICCID.");
        return 2;
    }
    
    // Shown on display
    signalQuality();

    puts("Starting program...");    
    
    // restart program upon failure
    do {
        ret = program();
        if (ret)
            puts("Restarting program...");
    } while (ret);

    mdm.disconnect();
    c027.mdmPower(false);
    
    return 0;
}

const char * imei()
{
    return devStatus.imei;
}

const char * imsi()
{
    return devStatus.imsi;
}

const char * cellId()
{
    if (!mdm.checkNetStatus(&netStatus))
        return NULL;

    if (snprintf(cCellId, sizeof(cCellId), "%X", netStatus.ci) < 1)
        return NULL;
        
    return cCellId;
}

const char * iccid()
{
    return devStatus.ccid;
}

sigq_t * signalQuality()
{
    sigQ.rssi = 0; sigQ.ber = 0;
    if (!mdm.checkNetStatus(&netStatus))
        return NULL;

    sigQ.rssi = netStatus.rssi;
    sigQ.ber = netStatus.ber;
    
    lcd_signal(sigQ.rssi, sigQ.ber);
    return &sigQ;
}