107 lines
2.2 KiB
C++
107 lines
2.2 KiB
C++
#pragma once
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#include <QObject>
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#include <QSerialPort>
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#include <QTimer>
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#include <QString>
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// LedDevice includes
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#include <leddevice/LedDevice.h>
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///
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/// The ProviderRs232 implements an abstract base-class for LedDevices using a RS232-device.
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///
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class ProviderRs232 : public LedDevice
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{
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Q_OBJECT
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public:
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///
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/// Constructs specific LedDevice
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///
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ProviderRs232();
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///
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/// Sets configuration
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///
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/// @param deviceConfig the json device config
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/// @return true if success
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virtual bool init(const QJsonObject &deviceConfig) override;
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///
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/// Destructor of the LedDevice; closes the output device if it is open
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///
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virtual ~ProviderRs232() override;
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///
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/// Opens and configures the output device
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///
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/// @return Zero on succes else negative
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///
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int open() override;
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public slots:
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///
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/// Closes the output device.
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/// Includes switching-off the device and stopping refreshes
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///
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virtual void close() override;
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private slots:
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/// Unblock the device after a connection delay
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void writeTimeout();
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void unblockAfterDelay();
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void error(QSerialPort::SerialPortError setInError);
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void bytesWritten(qint64 bytes);
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void readyRead();
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signals:
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void receivedData(QByteArray data);
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protected:
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/**
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* Writes the given bytes to the RS232-device and
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*
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* @param[in[ size The length of the data
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* @param[in] data The data
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*
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* @return Zero on success else negative
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*/
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int writeBytes(const qint64 size, const uint8_t *data);
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void closeDevice();
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QString findSerialDevice();
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// tries to open device if not opened
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bool tryOpen(const int delayAfterConnect_ms);
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/// The name of the output device
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QString _deviceName;
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/// The used baudrate of the output device
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qint32 _baudRate_Hz;
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/// Sleep after the connect before continuing
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int _delayAfterConnect_ms;
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/// The RS232 serial-device
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QSerialPort _rs232Port;
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/// A timeout timer for the asynchronous connection
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QTimer _writeTimeout;
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bool _blockedForDelay;
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bool _stateChanged;
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qint64 _bytesToWrite;
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qint64 _frameDropCounter;
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QSerialPort::SerialPortError _lastError;
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qint64 _preOpenDelayTimeOut;
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int _preOpenDelay;
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bool _enableAutoDeviceName;
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};
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