File content as of revision 3:04046eebaef5:

#include "Cellular.h"
#include "MTSText.h"

using namespace mts;

std::string Cellular::getRegistrationNames(Registration registration)
{
    switch(registration) {
        case NOT_REGISTERED:
            return "NOT_REGISTERED";
        case REGISTERED:
            return "REGISTERED";
        case SEARCHING:
            return "SEARCHING";
        case DENIED:
            return "DENIED";
        case UNKNOWN:
            return "UNKNOWN";
        case ROAMING:
            return "ROAMING";
        default:
            return "UNKNOWN ENUM";
    }
}

Code Cellular::test()
{
    int i = 0;
    while (sendBasicCommand("AT", 1000) != SUCCESS) {
        i++;
        if (i >= 30) {
            printf("[ERROR] Could not talk to radio after 30 tries\r\n");
            i = 0;
        }
        wait(1);
    }
    return SUCCESS;
}

int Cellular::getSignalStrength()
{
    string response = sendCommand("AT+CSQ", 1000);
    if (response.find("OK") == string::npos) {
        return -1;
    }
    int start = response.find(':');
    int stop = response.find(',', start);
    string signal = response.substr(start + 2, stop - start - 2);
    int value;
    sscanf(signal.c_str(), "%d", &value);
    return value;
}

Cellular::Registration Cellular::getRegistration()
{
    string response = sendCommand("AT+CREG?", 5000);
    if (response.find("OK") == string::npos) {
        return UNKNOWN;
    }
    int start = response.find(',');
    int stop = response.find(' ', start);
    string regStat = response.substr(start + 1, stop - start - 1);
    int value;
    sscanf(regStat.c_str(), "%d", &value);
    switch (value) {
        case 0:
            return NOT_REGISTERED;
        case 1:
            return REGISTERED;
        case 2:
            return SEARCHING;
        case 3:
            return DENIED;
        case 4:
            return UNKNOWN;
        case 5:
            return ROAMING;
    }
    return UNKNOWN;
}