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CuboBmsTool/bmsinterface.cpp
Yury Shuvakin dce22c65d6 Implemented QML skeleton for the application
2022-08-15 08:49:12 +03:00

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/**
Original copyright 2018 Benjamin Vedder benjamin@vedder.se and the VESC Tool project ( https://github.com/vedderb/vesc_tool )
Forked to:
Copyright 2018 Danny Bokma github@diebie.nl (https://github.com/DieBieEngineering/DieBieMS-Tool)
Now forked to:
Copyright 2019 - 2020 Kevin Dionne kevin.dionne@ennoid.me (https://github.com/EnnoidMe/ENNOID-BMS-Tool)
This file is part of ENNOID-BMS Tool.
ENNOID-BMS Tool is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ENNOID-BMS Tool 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "bmsinterface.h"
#include <QDebug>
#include <QHostInfo>
#include <QFileInfo>
#include <QThread>
#include <QEventLoop>
#include <utility.h>
#include <cmath>
#include <QRegularExpression>
#ifdef HAS_SERIALPORT
#include <QSerialPortInfo>
#endif
BMSInterface::BMSInterface(QObject *parent) : QObject(parent)
{
mbmsConfig = new ConfigParams(this);
mInfoConfig = new ConfigParams(this);
mPacket = new Packet(this);
mCommands = new Commands(this);
// Compatible firmwares
mFwVersionReceived = false;
mFwRetries = 0;
mFwPollCnt = 0;
mFwTxt = "x.x";
mIsUploadingFw = false;
mTimer = new QTimer(this);
mTimer->setInterval(20);
mTimer->start();
mLastConnType = static_cast<conn_t>(QSettings().value("connection_type", CONN_NONE).toInt());
mLastTcpServer = mSettings.value("tcp_server", "127.0.0.1").toString();
mLastTcpPort = mSettings.value("tcp_port", 65102).toInt();
mSendCanBefore = false;
mCanIdBefore = 0;
mWasConnected = false;
mAutoconnectOngoing = false;
mAutoconnectProgress = 0.0;
// Serial
#ifdef HAS_SERIALPORT
mSerialPort = new QSerialPort(this);
mLastSerialPort = "";
mLastSerialBaud = 0;
connect(mSerialPort, SIGNAL(readyRead()),this, SLOT(serialDataAvailable()));
connect(mSerialPort, SIGNAL(error(QSerialPort::SerialPortError)),this, SLOT(serialPortError(QSerialPort::SerialPortError)));
#endif
// TCP
mTcpSocket = new QTcpSocket(this);
mTcpConnected = false;
mLastTcpServer = QSettings().value("tcp_server").toString();
mLastTcpPort = QSettings().value("tcp_port").toInt();
connect(mTcpSocket, SIGNAL(readyRead()), this, SLOT(tcpInputDataAvailable()));
connect(mTcpSocket, SIGNAL(connected()), this, SLOT(tcpInputConnected()));
connect(mTcpSocket, SIGNAL(disconnected()),this, SLOT(tcpInputDisconnected()));
connect(mTcpSocket, SIGNAL(error(QAbstractSocket::SocketError)),this, SLOT(tcpInputError(QAbstractSocket::SocketError)));
// BLE
mBleUart = new BleUart(this);
mLastBleAddr = QSettings().value("ble_addr").toString();
int size = mSettings.beginReadArray("bleNames");
for (int i = 0; i < size; ++i) {
mSettings.setArrayIndex(i);
QString address = mSettings.value("address").toString();
QString name = mSettings.value("name").toString();
mBleNames.insert(address, name);
}
mSettings.endArray();
connect(mBleUart, SIGNAL(dataRx(QByteArray)), this, SLOT(bleDataRx(QByteArray)));
mCommands->setbmsConfig(mbmsConfig);
// Other signals/slots
connect(mTimer, SIGNAL(timeout()), this, SLOT(timerSlot()));
connect(mPacket, SIGNAL(dataToSend(QByteArray&)),this, SLOT(packetDataToSend(QByteArray&)));
connect(mPacket, SIGNAL(packetReceived(QByteArray&)),this, SLOT(packetReceived(QByteArray&)));
connect(mCommands, SIGNAL(dataToSend(QByteArray&)),this, SLOT(cmdDataToSend(QByteArray&)));
connect(mCommands, SIGNAL(fwVersionReceived(int,int,QString,QByteArray)),this, SLOT(fwVersionReceived(int,int,QString,QByteArray)));
connect(mCommands, SIGNAL(ackReceived(QString)), this, SLOT(ackReceived(QString)));
connect(mbmsConfig, SIGNAL(updated()), this, SLOT(bmsconfUpdated()));
connect(mbmsConfig, SIGNAL(stored()), this, SLOT(bmsconfStored()));
}
BMSInterface::~BMSInterface()
{
mSettings.beginWriteArray("bleNames");
QHashIterator<QString, QString> i(mBleNames);
int ind = 0;
while (i.hasNext()) {
i.next();
mSettings.setArrayIndex(ind);
mSettings.setValue("address", i.key());
mSettings.setValue("name", i.value());
ind++;
}
mSettings.endArray();
}
Commands *BMSInterface::commands() const
{
return mCommands;
}
ConfigParams *BMSInterface::bmsConfig()
{
return mbmsConfig;
}
ConfigParams *BMSInterface::infoConfig()
{
return mInfoConfig;
}
QStringList BMSInterface::getSupportedFirmwares()
{
QList<QPair<int, int> > fwPairs = getSupportedFirmwarePairs();
QStringList fws;
for (int i = 0;i < fwPairs.size();i++) {
QString tmp;
tmp.sprintf("%d.%d", fwPairs.at(i).first, fwPairs.at(i).second);
fws.append(tmp);
}
return fws;
}
QList<QPair<int, int> > BMSInterface::getSupportedFirmwarePairs()
{
QList<QPair<int, int> > fws;
ConfigParam *p = mInfoConfig->getParam("fw_version");
if (p) {
QStringList strs = p->enumNames;
for (int i = 0;i < strs.size();i++) {
QStringList mami = strs.at(i).split(".");
QPair<int, int> fw = qMakePair(mami.at(0).toInt(), mami.at(1).toInt());
fws.append(fw);
}
}
return fws;
}
QString BMSInterface::getFirmwareNow()
{
return mFwTxt;
}
void BMSInterface::emitStatusMessage(const QString &msg, bool isGood)
{
emit statusMessage(msg, isGood);
}
void BMSInterface::emitMessageDialog(const QString &title, const QString &msg, bool isGood, bool richText)
{
emit messageDialog(title, msg, isGood, richText);
}
bool BMSInterface::fwRx()
{
return mFwVersionReceived;
}
void BMSInterface::storeSettings()
{
mSettings.beginWriteArray("bleNames");
QHashIterator<QString, QString> i(mBleNames);
int ind = 0;
while (i.hasNext()) {
i.next();
mSettings.setArrayIndex(ind);
mSettings.setValue("address", i.key());
mSettings.setValue("name", i.value());
ind++;
}
mSettings.endArray();
mSettings.beginWriteArray("profiles");
for (int i = 0; i < mProfiles.size(); ++i) {
MCCONF_TEMP cfg = mProfiles.value(i).value<MCCONF_TEMP>();
mSettings.setArrayIndex(i);
mSettings.setValue("current_min_scale", cfg.current_min_scale);
mSettings.setValue("current_max_scale", cfg.current_max_scale);
mSettings.setValue("erpm_or_speed_min", cfg.erpm_or_speed_min);
mSettings.setValue("erpm_or_speed_max", cfg.erpm_or_speed_max);
mSettings.setValue("duty_min", cfg.duty_min);
mSettings.setValue("duty_max", cfg.duty_max);
mSettings.setValue("watt_min", cfg.watt_min);
mSettings.setValue("watt_max", cfg.watt_max);
mSettings.setValue("name", cfg.name);
}
mSettings.endArray();
mSettings.beginWriteArray("pairedUuids");
for (int i = 0;i < mPairedUuids.size();i++) {
mSettings.setArrayIndex(i);
mSettings.setValue("uuid", mPairedUuids.at(i));
}
mSettings.endArray();
}
#ifdef HAS_BLUETOOTH
BleUart *BMSInterface::bleDevice()
{
return mBleUart;
}
void BMSInterface::storeBleName(QString address, QString name)
{
mBleNames.insert(address, name);
}
QString BMSInterface::getBleName(QString address)
{
QString res;
if(mBleNames.contains(address)) {
res = mBleNames[address];
}
return res;
}
QString BMSInterface::getLastBleAddr() const
{
return mLastBleAddr;
}
#endif
bool BMSInterface::isPortConnected()
{
bool res = false;
#ifdef HAS_SERIALPORT
if (mSerialPort->isOpen()) {
res = true;
}
#endif
if (mTcpConnected) {
res = true;
}
if (mBleUart->isConnected()) {
res = true;
}
return res;
}
void BMSInterface::disconnectPort()
{
#ifdef HAS_SERIALPORT
if(mSerialPort->isOpen()) {
mSerialPort->close();
updateFwRx(false);
}
#endif
if (mTcpConnected) {
mTcpSocket->close();
updateFwRx(false);
}
if (mBleUart->isConnected()) {
mBleUart->disconnectBle();
updateFwRx(false);
}
mFwRetries = 0;
}
bool BMSInterface::reconnectLastPort()
{
if (mLastConnType == CONN_SERIAL) {
#ifdef HAS_SERIALPORT
return connectSerial(mLastSerialPort, mLastSerialBaud);
#else
return false;
#endif
} else if (mLastConnType == CONN_TCP) {
connectTcp(mLastTcpServer, mLastTcpPort);
return true;
} else if (mLastConnType == CONN_BLE) {
mBleUart->startConnect(mLastBleAddr);
return true;
} else {
#ifdef HAS_SERIALPORT
QList<VSerialInfo_t> ports = listSerialPorts();
if (!ports.isEmpty()) {
return connectSerial(ports.first().systemPath);
} else {
emit messageDialog(tr("Reconnect"), tr("No ports found"), false, false);
return false;
}
#else
emit messageDialog(tr("Reconnect"),
tr("Please specify the connection manually "
"the first time you are connecting."),
false, false);
return false;
#endif
}
}
bool BMSInterface::autoconnect()
{
bool res = false;
#ifdef HAS_SERIALPORT
QList<VSerialInfo_t> ports = listSerialPorts();
mAutoconnectOngoing = true;
mAutoconnectProgress = 0.0;
disconnectPort();
disconnect(mCommands, SIGNAL(fwVersionReceived(int,int,QString,QByteArray)),
this, SLOT(fwVersionReceived(int,int,QString,QByteArray)));
for (int i = 0;i < ports.size();i++) {
VSerialInfo_t serial = ports[i];
if (!connectSerial(serial.systemPath)) {
continue;
}
QEventLoop loop;
QTimer timeoutTimer;
timeoutTimer.setSingleShot(true);
timeoutTimer.start(500);
connect(mCommands, SIGNAL(fwVersionReceived(int,int,QString,QByteArray)), &loop, SLOT(quit()));
connect(&timeoutTimer, SIGNAL(timeout()), &loop, SLOT(quit()));
loop.exec();
if (timeoutTimer.isActive()) {
// If the timer is still running a firmware version was received.
res = true;
break;
} else {
mAutoconnectProgress = (double)i / (double)ports.size();
emit autoConnectProgressUpdated(mAutoconnectProgress, false);
disconnectPort();
}
}
connect(mCommands, SIGNAL(fwVersionReceived(int,int,QString,QByteArray)),
this, SLOT(fwVersionReceived(int,int,QString,QByteArray)));
#endif
emit autoConnectProgressUpdated(1.0, true);
emit autoConnectFinished();
mAutoconnectOngoing = false;
return res;
}
QString BMSInterface::getConnectedPortName()
{
QString res = tr("Not connected");
bool connected = false;
#ifdef HAS_SERIALPORT
if (mSerialPort->isOpen()) {
res = tr("Connected (serial) to %1").arg(mSerialPort->portName());
connected = true;
}
#endif
if (mTcpConnected) {
res = tr("Connected (TCP) to %1:%2").arg(mLastTcpServer).arg(mLastTcpPort);
connected = true;
}
if (mBleUart->isConnected()) {
res = tr("Connected (BLE) to %1").arg(mLastBleAddr);
connected = true;
}
if (connected && mCommands->isLimitedMode()) {
res += tr(", limited mode");
}
return res;
}
bool BMSInterface::connectSerial(QString port, int baudrate)
{
#ifdef HAS_SERIALPORT
mLastSerialPort = port;
mLastSerialBaud = baudrate;
setLastConnectionType(CONN_SERIAL);
bool found = false;
for (VSerialInfo_t ser: listSerialPorts()) {
if (ser.systemPath == port) {
found = true;
break;
}
}
if (!found) {
emit statusMessage(tr("Invalid serial port: %1").arg(port), false);
return false;
}
if(mSerialPort->isOpen()) {
return true;
}
// TODO: Maybe this test works on other OSes as well
#ifdef Q_OS_UNIX
QFileInfo fi(port);
if (fi.exists()) {
if (!fi.isWritable()) {
emit statusMessage(tr("Serial port is not writable"), false);
emit serialPortNotWritable(port);
return false;
}
}
#endif
mSerialPort->setPortName(port);
mSerialPort->open(QIODevice::ReadWrite);
if(!mSerialPort->isOpen()) {
return false;
}
mSerialPort->setBaudRate(baudrate);
mSerialPort->setDataBits(QSerialPort::Data8);
mSerialPort->setParity(QSerialPort::NoParity);
mSerialPort->setStopBits(QSerialPort::OneStop);
mSerialPort->setFlowControl(QSerialPort::NoFlowControl);
// For nrf
mSerialPort->setRequestToSend(true);
mSerialPort->setDataTerminalReady(true);
QThread::msleep(5);
mSerialPort->setDataTerminalReady(false);
QThread::msleep(100);
return true;
#else
(void)port;
(void)baudrate;
emit messageDialog(tr("Connect serial"),
tr("Serial port support is not enabled in this build "
"of ENNOID-BMS Tool."),
false, false);
return false;
#endif
}
QList<VSerialInfo_t> BMSInterface::listSerialPorts()
{
QList<VSerialInfo_t> res;
#ifdef HAS_SERIALPORT
QList<QSerialPortInfo> ports = QSerialPortInfo::availablePorts();
foreach(const QSerialPortInfo &port, ports) {
VSerialInfo_t info;
info.name = port.portName();
info.systemPath = port.systemLocation();
int index = res.size();
if(port.manufacturer().startsWith("Silicon")) {
//info.name.insert(0, "ENNOID-BMS - ");
info.name.append(" - ENNOID-BMS");
info.isVesc = true;
index = 0;
} else {
info.isVesc = false;
}
res.insert(index, info);
}
#endif
return res;
}
QStringList BMSInterface::serialPortNames()
{
QStringList names;
for (const auto& info: listSerialPorts())
{
names.append(info.systemPath);
}
return names;
}
void BMSInterface::connectTcp(QString server, int port)
{
mLastTcpServer = server;
mLastTcpPort = port;
setLastConnectionType(CONN_TCP);
QHostAddress host;
host.setAddress(server);
// Try DNS lookup
if (host.isNull()) {
QList<QHostAddress> addresses = QHostInfo::fromName(server).addresses();
if (!addresses.isEmpty()) {
host.setAddress(addresses.first().toString());
}
}
mTcpSocket->abort();
mTcpSocket->connectToHost(host, port);
}
void BMSInterface::connectBle(QString address)
{
mBleUart->startConnect(address);
mLastConnType = CONN_BLE;
mLastBleAddr = address;
setLastConnectionType(CONN_BLE);
}
bool BMSInterface::isAutoconnectOngoing() const
{
return mAutoconnectOngoing;
}
double BMSInterface::getAutoconnectProgress() const
{
return mAutoconnectProgress;
}
QVector<int> BMSInterface::scanCan()
{
QVector<int> canDevs;
if (!isPortConnected()) {
return canDevs;
}
QEventLoop loop;
bool timeout;
auto conn = connect(commands(), &Commands::pingCanRx,
[&canDevs, &timeout, &loop](QVector<int> devs, bool isTimeout) {
for (int dev: devs) {
canDevs.append(dev);
}
timeout = isTimeout;
loop.quit();
});
commands()->pingCan();
loop.exec();
disconnect(conn);
if (!timeout) {
mCanDevsLast = canDevs;
} else {
canDevs.clear();
}
return canDevs;
}
QVector<int> BMSInterface::getCanDevsLast() const
{
return mCanDevsLast;
}
void BMSInterface::ignoreCanChange(bool ignore)
{
mIgnoreCanChange = ignore;
}
#ifdef HAS_SERIALPORT
void BMSInterface::serialDataAvailable()
{
bool b = true;
while (mSerialPort->bytesAvailable() > 0) {
mPacket->processData(mSerialPort->readAll());
}
}
void BMSInterface::serialPortError(QSerialPort::SerialPortError error)
{
QString message;
switch (error) {
case QSerialPort::NoError:
break;
default:
message = "Serial port error: " + mSerialPort->errorString();
break;
}
if(!message.isEmpty()) {
emit statusMessage(message, false);
if (mSerialPort->isOpen()) {
mSerialPort->close();
}
updateFwRx(false);
}
}
#endif
void BMSInterface::tcpInputConnected()
{
bool b = true;
mTcpConnected = true;
updateFwRx(false);
}
void BMSInterface::tcpInputDisconnected()
{
mTcpConnected = false;
updateFwRx(false);
}
void BMSInterface::tcpInputDataAvailable()
{
bool b = true;
while (mTcpSocket->bytesAvailable() > 0) {
mPacket->processData(mTcpSocket->readAll());
}
}
void BMSInterface::tcpInputError(QAbstractSocket::SocketError socketError)
{
(void)socketError;
QString errorStr = mTcpSocket->errorString();
emit statusMessage(tr("TCP Error") + errorStr, false);
mTcpSocket->close();
updateFwRx(false);
}
#ifdef HAS_BLUETOOTH
void BMSInterface::bleDataRx(QByteArray data)
{
mPacket->processData(data);
}
#endif
void BMSInterface::timerSlot()
{
// Poll the serial port as well since readyRead is not emitted recursively. This
// can be a problem when waiting for input with an additional event loop, such as
// when using QMessageBox.
#ifdef HAS_SERIALPORT
serialDataAvailable();
#endif
if (isPortConnected()) {
if (mSendCanBefore != mCommands->getSendCan() ||
mCanIdBefore != mCommands->getCanSendId()) {
updateFwRx(false);
mFwRetries = 0;
}
mFwPollCnt++;
if (mFwPollCnt >= 4) {
mFwPollCnt = 0;
if (!mFwVersionReceived) {
mCommands->getFwVersion();
mFwRetries++;
// Timeout if the firmware cannot be read
if (mFwRetries >= 25) {
emit statusMessage(tr("No firmware read response"), false);
emit messageDialog(tr("Read Firmware Version"),
tr("Could not read firmware version. Make sure "
"that selected port really belongs to the ENNOID-BMS. "),
false, false);
disconnectPort();
}
}
}
} else {
updateFwRx(false);
mFwRetries = 0;
}
mSendCanBefore = mCommands->getSendCan();
mCanIdBefore = mCommands->getCanSendId();
// Update fw upload bar and label
double fwProg = mCommands->getFirmwareUploadProgress();
QString fwStatus = mCommands->getFirmwareUploadStatus();
if (fwProg > -0.1) {
mIsUploadingFw = true;
emit fwUploadStatus(fwStatus, fwProg, true);
} else {
// If the firmware upload just finished or failed
if (mIsUploadingFw) {
updateFwRx(false);
mFwRetries = 0;
if (fwStatus.compare("FW Upload Done") == 0) {
emit fwUploadStatus(fwStatus, 1.0, false);
} else {
emit fwUploadStatus(fwStatus, 0.0, false);
}
}
mIsUploadingFw = false;
}
if (mWasConnected != isPortConnected()) {
mWasConnected = isPortConnected();
emit portConnectedChanged();
}
}
void BMSInterface::packetDataToSend(QByteArray &data)
{
#ifdef HAS_SERIALPORT
if (mSerialPort->isOpen()) {
mSerialPort->write(data);
}
#endif
if (mTcpConnected && mTcpSocket->isOpen()) {
mTcpSocket->write(data);
}
if (mBleUart->isConnected()) {
mBleUart->writeData(data);
}
}
void BMSInterface::packetReceived(QByteArray &data)
{
mCommands->processPacket(data);
}
void BMSInterface::cmdDataToSend(QByteArray &data)
{
mPacket->sendPacket(data);
}
void BMSInterface::fwVersionReceived(int major, int minor, QString hw, QByteArray uuid)
{
QList<QPair<int, int> > fwPairs = getSupportedFirmwarePairs();
QString strUuid = Utility::uuid2Str(uuid, true);
if (fwPairs.isEmpty()) {
emit messageDialog(tr("Not Supported Firmwares"),
tr("This version of ENNOID-BMS Tool does not seem to have any supported "
"firmwares. Something is probably wrong with the BMS configuration "
"file."),
false, false);
updateFwRx(false);
mFwRetries = 0;
disconnectPort();
return;
}
QPair<int, int> highest_supported = *std::max_element(fwPairs.begin(), fwPairs.end());
QPair<int, int> fw_connected = qMakePair(major, minor);
bool wasReceived = mFwVersionReceived;
mCommands->setLimitedMode(false);
#if 0
if (major < 0) {
updateFwRx(false);
mFwRetries = 0;
disconnectPort();
emit messageDialog(tr("Error"), tr("The firmware on the connected ENNOID-BMS is too old. Please update it using a programmer."), false, false);
} else if (fw_connected > highest_supported) {
mCommands->setLimitedMode(true);
updateFwRx(true);
if (!wasReceived) {
emit messageDialog(tr("Warning"), tr("The connected ENNOID-BMS has newer firmware than this version of the"
" ENNOID-BMS Tool supports. It is recommended that you update the ENNOID-BMS"
" Tool to the latest version. Alternatively, the firmware on"
" the connected ENNOID-BMS can be downgraded in the firmware page."
" Until then, limited communication mode will be used where"
" only the firmware can be changed."), false, false);
}
} else if (!fwPairs.contains(fw_connected)) {
if (fw_connected >= qMakePair(0, 10)) {
mCommands->setLimitedMode(true);
updateFwRx(true);
if (!wasReceived) {
emit messageDialog(tr("Warning"), tr("The connected ENNOID-BMS has too old firmware. Since the"
" connected ENNOID-BMS has firmware with bootloader support, it can be"
" updated from the Firmware page."
" Until then, limited communication mode will be used where only the"
" firmware can be changed."), false, false);
}
} else {
updateFwRx(false);
mFwRetries = 0;
disconnectPort();
if (!wasReceived) {
emit messageDialog(tr("Error"), tr("The firmware on the connected ENNOID-BMS is too old. Please"
" update it using a programmer."), false, false);
}
}
} else {
#endif
updateFwRx(true);
if ((fw_connected < highest_supported)) {
if (!wasReceived) {
//emit messageDialog(tr("Warning"), tr("The connected ENNOID-BMS is compatible, but old firmware. It is recommended that you update it."), false, false);
}
}
QString fwStr;
fwStr.sprintf("ENNOID-BMS Firmware Version %d.%d", major, minor);
if (!hw.isEmpty()) {
fwStr += ", Hardware: " + hw;
}
if (!strUuid.isEmpty()) {
fwStr += ", UUID: " + strUuid;
}
emit statusMessage(fwStr, true);
#if 0
}
#endif
if (major >= 0) {
mFwTxt.sprintf("Fw: %d.%d", major, minor);
mHwTxt = hw;
if (!hw.isEmpty()) {
mFwTxt += ", Hw: " + hw;
}
if (!strUuid.isEmpty()) {
mFwTxt += "\n" + strUuid;
}
}
}
void BMSInterface::bmsconfUpdated()
{
emit statusMessage(tr("BMS configuration updated"), true);
}
void BMSInterface::bmsconfStored() {
emit statusMessage(tr("BMS configuration stored to Flash"), true);
}
void BMSInterface::ackReceived(QString ackType)
{
emit statusMessage(ackType, true);
}
void BMSInterface::updateFwRx(bool fwRx)
{
bool change = mFwVersionReceived != fwRx;
mFwVersionReceived = fwRx;
if (change) {
emit fwRxChanged(mFwVersionReceived, mCommands->isLimitedMode());
}
}
void BMSInterface::setLastConnectionType(conn_t type)
{
mLastConnType = type;
QSettings().setValue("connection_type", type);
}
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