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#include "SerialController.h"
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SerialController::SerialController(QObject *parent) : QObject(parent)
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{
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connected = false;
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speeds << "9600" << "19200" << "38400" << "57600" << "115200" << "230400" << "250000";
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bufferInIndex = 0;
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bufferInOverflow = false;
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}
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SerialController::~SerialController()
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{
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serialPort->close();
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delete serialPort;
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}
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void SerialController::Serial_QueryParameters()
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{
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QList<QSerialPortInfo> portsList = QSerialPortInfo::availablePorts();
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QStringList ports;
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for (int i = 0; i < portsList.size(); i++) {
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ports.append(portsList[i].portName());
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}
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emit Serial_UpdateParameters(ports, speeds);
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}
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void SerialController::Serial_Connect(QString port, QString speed)
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{
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if (!connected) {
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serialPort = new QSerialPort();
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connect(serialPort, SIGNAL(readyRead()), this, SLOT(Serial_ProcessIncomingData()));
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serialPort->setPortName(port);
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if (!serialPort->open(QIODevice::ReadWrite)) {
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Serial_Disconnect();
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} else {
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connected = true;
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bool ok = false;
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int baud = speed.toInt(&ok);
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if (ok) serialPort->setBaudRate(baud);
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serialPort->setDataBits(QSerialPort::Data8);
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serialPort->setParity(QSerialPort::NoParity);
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// serialPort->setFlowControl(QSerialPort::HardwareControl);
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serialPort->setStopBits(QSerialPort::OneStop);
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// See http://umforum.ultimaker.com/index.php?/topic/5886-um2-controller-resetreboot-when-opening-usb-port-on-linux/
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serialPort->setDataTerminalReady(1);
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if (ok) emit Serial_Connected();
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}
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}
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}
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void SerialController::Serial_Disconnect()
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{
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serialPort->close();
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delete serialPort;
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connected = false;
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emit Serial_Disconnected();
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}
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void SerialController::Serial_TransmitString(QString string)
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{
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serialPort->write(string.toStdString().c_str());
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serialPort->write(SERIAL_NEWLINE_CHAR);
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}
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void SerialController::Serial_ProcessIncomingData()
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{
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char tmpBuffer[SERIAL_BUFFER_SIZE];
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int len = serialPort->read(tmpBuffer, sizeof(tmpBuffer));
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while (len > 0) {
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for (int i = 0; i < len; i++) {
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// Save received data into local buffer
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bufferIn[bufferInIndex] = tmpBuffer[i];
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// If newline char is received, end current string
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if (tmpBuffer[i] == '\n') {
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if (bufferInOverflow)
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currString.append(QString::fromLocal8Bit(bufferIn, bufferInIndex));
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else
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currString = QString::fromLocal8Bit(bufferIn, bufferInIndex);
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bufferInOverflow = false;
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bufferInIndex = 0;
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emit Serial_ReceivedString(currString);
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} else {
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bufferInIndex++;
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}
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// If received string is larger than our serial buffer, append to previous data
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if (bufferInIndex == SERIAL_BUFFER_SIZE-1) {
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bufferIn[SERIAL_BUFFER_SIZE-1] = 0x0;
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if (bufferInOverflow)
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currString.append(QString::fromLocal8Bit(bufferIn, bufferInIndex));
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else
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currString = QString::fromLocal8Bit(bufferIn, bufferInIndex);
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bufferInOverflow = true;
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bufferInIndex = 0;
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}
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}
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// Check if there is more data to be read from the serial port
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len = serialPort->read(tmpBuffer, sizeof(tmpBuffer));
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}
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}
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