wfview/commhandler.cpp

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6.4 KiB
C++
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#include "commhandler.h"
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#include "logcategories.h"
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#include <QDebug>
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// Copytight 2017-2020 Elliott H. Liggett
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commHandler::commHandler()
{
//constructor
// grab baud rate and other comm port details
// if they need to be changed later, please
// destroy this and create a new one.
port = new QSerialPort();
// TODO: The following should become arguments and/or functions
// Add signal/slot everywhere for comm port setup.
// Consider how to "re-setup" and how to save the state for next time.
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baudrate = 115200;
stopbits = 1;
portName = "/dev/ttyUSB0";
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setupComm(); // basic parameters
openPort();
//qInfo(logSerial()) << "Serial buffer size: " << port->readBufferSize();
//port->setReadBufferSize(1024); // manually. 256 never saw any return from the radio. why...
//qInfo(logSerial()) << "Serial buffer size: " << port->readBufferSize();
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connect(port, SIGNAL(readyRead()), this, SLOT(receiveDataIn()));
}
commHandler::commHandler(QString portName, quint32 baudRate)
{
//constructor
// grab baud rate and other comm port details
// if they need to be changed later, please
// destroy this and create a new one.
port = new QSerialPort();
// TODO: The following should become arguments and/or functions
// Add signal/slot everywhere for comm port setup.
// Consider how to "re-setup" and how to save the state for next time.
baudrate = baudRate;
stopbits = 1;
this->portName = portName;
setupComm(); // basic parameters
openPort();
// qInfo(logSerial()) << "Serial buffer size: " << port->readBufferSize();
//port->setReadBufferSize(1024); // manually. 256 never saw any return from the radio. why...
//qInfo(logSerial()) << "Serial buffer size: " << port->readBufferSize();
connect(port, SIGNAL(readyRead()), this, SLOT(receiveDataIn()));
}
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commHandler::~commHandler()
{
this->closePort();
}
void commHandler::setupComm()
{
serialError = false;
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port->setPortName(portName);
port->setBaudRate(baudrate);
port->setStopBits(QSerialPort::OneStop);// OneStop is other option
}
void commHandler::receiveDataFromUserToRig(const QByteArray &data)
{
sendDataOut(data);
}
void commHandler::sendDataOut(const QByteArray &writeData)
{
mutex.lock();
qint64 bytesWritten;
bytesWritten = port->write(writeData);
if(bytesWritten != (qint64)writeData.size())
{
qDebug(logSerial()) << "bytesWritten: " << bytesWritten << " length of byte array: " << writeData.length()\
<< " size of byte array: " << writeData.size()\
<< " Wrote all bytes? " << (bool) (bytesWritten == (qint64)writeData.size());
}
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mutex.unlock();
}
void commHandler::receiveDataIn()
{
// connected to comm port data signal
// Here we get a little specific to CIV radios
// because we know what constitutes a valid "frame" of data.
// new code:
port->startTransaction();
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inPortData = port->readAll();
if(inPortData.size() == 1)
{
// Generally for baud <= 9600
if (inPortData == "\xFE")
{
// This will get hit twice.
// After the FE FE, we transition into
// the normal .startsWith FE FE block
// where the normal rollback code can handle things.
port->rollbackTransaction();
rolledBack = true;
return;
}
}
if(inPortData.startsWith("\xFE\xFE"))
{
if(inPortData.endsWith("\xFD"))
{
// good!
port->commitTransaction();
emit haveDataFromPort(inPortData);
if(rolledBack)
{
// qInfo(logSerial()) << "Rolled back and was successfull. Length: " << inPortData.length();
//printHex(inPortData, false, true);
rolledBack = false;
}
} else {
// did not receive the entire thing so roll back:
// qInfo(logSerial()) << "Rolling back transaction. End not detected. Lenth: " << inPortData.length();
//printHex(inPortData, false, true);
port->rollbackTransaction();
rolledBack = true;
}
} else {
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port->commitTransaction(); // do not emit data, do not keep data.
//qInfo(logSerial()) << "Warning: received data with invalid start. Dropping data.";
//qInfo(logSerial()) << "THIS SHOULD ONLY HAPPEN ONCE!!";
// THIS SHOULD ONLY HAPPEN ONCE!
// unrecoverable. We did not receive the start and must
// have missed it earlier because we did not roll back to
// preserve the beginning.
//printHex(inPortData, false, true);
}
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}
void commHandler::openPort()
{
bool success;
// port->open();
success = port->open(QIODevice::ReadWrite);
if(success)
{
port->setDataTerminalReady(false);
port->setRequestToSend(false);
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isConnected = true;
qInfo(logSerial()) << "Opened port: " << portName;
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return;
} else {
qInfo(logSerial()) << "Could not open serial port " << portName << " , please restart.";
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isConnected = false;
serialError = true;
emit haveSerialPortError(portName, "Could not open port. Please restart.");
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return;
}
}
void commHandler::closePort()
{
if(port)
{
port->close();
delete port;
}
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isConnected = false;
}
void commHandler::debugThis()
{
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// Do not use, function is for debug only and subject to change.
qInfo(logSerial()) << "comm debug called.";
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inPortData = port->readAll();
emit haveDataFromPort(inPortData);
}
void commHandler::printHex(const QByteArray &pdata, bool printVert, bool printHoriz)
{
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qDebug(logSerial()) << "---- Begin hex dump -----:";
QString sdata("DATA: ");
QString index("INDEX: ");
QStringList strings;
for(int i=0; i < pdata.length(); i++)
{
strings << QString("[%1]: %2").arg(i,8,10,QChar('0')).arg((unsigned char)pdata[i], 2, 16, QChar('0'));
sdata.append(QString("%1 ").arg((unsigned char)pdata[i], 2, 16, QChar('0')) );
index.append(QString("%1 ").arg(i, 2, 10, QChar('0')));
}
if(printVert)
{
for(int i=0; i < strings.length(); i++)
{
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qDebug(logSerial()) << strings.at(i);
}
}
if(printHoriz)
{
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qDebug(logSerial()) << index;
qDebug(logSerial()) << sdata;
}
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qDebug(logSerial()) << "----- End hex dump -----";
}