hyperion.ng/libsrc/leddevice/dev_serial/ProviderRs232.h

102 lines
2.1 KiB
C++

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