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/*
* Copyright (C) 2019 by Multi-Tech Systems
*
* This file is part of libmts-io.
*
* libmts-io is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* libmts-io is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libmts-io. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <mts/MTS_IO_EG95Radio.h>
#include <climits>
#include <mts/MTS_Logger.h>
#include <mts/MTS_Text.h>
using namespace MTS::IO;
const std::string EG95Radio::MODEL_NAME("EG95");
EG95Radio::EG95Radio(const std::string& sPort)
: QuectelRadio(MODEL_NAME, sPort)
{
}
EG95Radio::~EG95Radio() {
}
ICellularRadio::CODE EG95Radio::setRxDiversity(const Json::Value& jArgs) {
/* Command string for EG95 radios: AT+QCFG="diversity",(0-1) */
if (jArgs["enabled"].asString() != "1" && jArgs["enabled"].asString() != "0") {
return FAILURE;
}
std::string sCmd = "AT+QCFG=\"diversity\",";
sCmd += jArgs["enabled"].asString();
return sendBasicCommand(sCmd);
}
ICellularRadio::CODE EG95Radio::getSupportedCellularModes(CELLULAR_MODES &networks) {
networks = static_cast<CELLULAR_MODES>(CELLULAR_MODE_2G | CELLULAR_MODE_3G | CELLULAR_MODE_4G);
return SUCCESS;
}
ICellularRadio::CODE EG95Radio::setCellularMode(CELLULAR_MODES networks) {
std::string prefNet;
unsigned int prefOnly = 0, prefCount = 0;
for (int i = sizeof(networks)*CHAR_BIT-1; i>=0; --i){
switch (1<<i & networks) {
case ICellularRadio::CELLULAR_MODE_2G: prefNet += "01" ; prefOnly = 1; prefCount++; break;
case ICellularRadio::CELLULAR_MODE_3G: prefNet += "0302"; prefOnly = 2; prefCount++; break;
case ICellularRadio::CELLULAR_MODE_4G: prefNet += "04" ; prefOnly = 3; prefCount++; break;
}
}
std::string sCmd;
if (prefCount == 1) { // *g-only
sCmd = "AT+QCFG=\"nwscanmode\"," + std::to_string(prefOnly);
} else { // preferred
sCmd = "AT+QCFG=\"nwscanmode\",0";
}
std::string cmdResult = sendCommand(sCmd);
if (cmdResult.find(ICellularRadio::RSP_OK) == std::string::npos) {
printError("%s| AT+QCFG=\"nwscanmode\" returned unexpected response: [%s][%s]", getName().c_str(), sCmd.c_str(), cmdResult.c_str());
return FAILURE;
}
sCmd = "AT+QCFG=\"nwscanseq\"," + prefNet;
cmdResult = sendCommand(sCmd);
if (cmdResult.find(ICellularRadio::RSP_OK) == std::string::npos) {
printError("%s| AT+QCFG=\"nwscanseq\" returned unexpected response: [%s][%s]", getName().c_str(), sCmd.c_str(), cmdResult.c_str());
return FAILURE;
}
return SUCCESS;
}
ICellularRadio::REGISTRATION parseRegResponse(std::string sResult)
{
size_t start = sResult.find(',');
size_t stop = sResult.find(' ', start);
std::string sRegStat = sResult.substr(start + 1, stop - start - 1);
int32_t value;
sscanf(sRegStat.c_str(), "%d", &value);
return (ICellularRadio::REGISTRATION)value;
}
ICellularRadio::CODE EG95Radio::getRegistration(REGISTRATION& eRegistration) {
std::string sCmd;
std::string sResp;
// On the EG95 we need to check CREG, CGREG, and CEREG for possible success.
// Depending on the carrier, roaming, and some other factors the registration
// will come back differently depending on the type of connection that is possible.
sCmd = "AT+CREG?";
sResp = "+CREG: ";
std::string sResult = sendCommand(sCmd, DEFAULT_BAIL_STRINGS, 5000);
if (sResult.find(sResp) == std::string::npos) {
if(sResult.size() == 0) {
printDebug("%s| Registration command returned no response: [EG95]");
}
printDebug("%s| Registration command returned unexpected response: [EG95]");
}
eRegistration = parseRegResponse(sResult);
if (eRegistration == REGISTERED) {
return SUCCESS;
}
sCmd = "AT+CGREG?";
sResp = "+CGREG: ";
sResult = sendCommand(sCmd, DEFAULT_BAIL_STRINGS, 5000);
if (sResult.find(sResp) == std::string::npos) {
if(sResult.size() == 0) {
printDebug("%s| Registration command returned no response: [EG95]");
}
printDebug("%s| Registration command returned unexpected response: [EG95]");
}
eRegistration = parseRegResponse(sResult);
if (eRegistration == REGISTERED) {
return SUCCESS;
}
sCmd = "AT+CEREG?";
sResp = "+CEREG: ";
sResult = sendCommand(sCmd, DEFAULT_BAIL_STRINGS, 5000);
if (sResult.find(sResp) == std::string::npos) {
if(sResult.size() == 0) {
printDebug("%s| Registration command returned no response: [EG95]");
return NO_RESPONSE;
}
printDebug("%s| Registration command returned unexpected response: [EG95]");
return FAILURE;
}
eRegistration = parseRegResponse(sResult);
if (eRegistration == REGISTERED) {
return SUCCESS;
}
return SUCCESS;
}
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