98 lines
2.4 KiB
C++
98 lines
2.4 KiB
C++
// Copyright (C) 2017 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#ifndef QMODBUSDEVICE_H
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#define QMODBUSDEVICE_H
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#include <QtCore/qobject.h>
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#include <QtCore/qiodevice.h>
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#include <QtSerialBus/qtserialbusglobal.h>
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QT_BEGIN_NAMESPACE
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class QModbusDevicePrivate;
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class Q_SERIALBUS_EXPORT QModbusDevice : public QObject
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{
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Q_OBJECT
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Q_DECLARE_PRIVATE(QModbusDevice)
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public:
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enum Error {
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NoError,
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ReadError,
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WriteError,
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ConnectionError,
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ConfigurationError,
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TimeoutError,
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ProtocolError,
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ReplyAbortedError,
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UnknownError,
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InvalidResponseError
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};
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Q_ENUM(Error)
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enum State {
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UnconnectedState,
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ConnectingState,
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ConnectedState,
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ClosingState
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};
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Q_ENUM(State)
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enum ConnectionParameter {
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SerialPortNameParameter,
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SerialParityParameter,
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SerialBaudRateParameter,
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SerialDataBitsParameter,
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SerialStopBitsParameter,
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NetworkPortParameter,
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NetworkAddressParameter
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};
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Q_ENUM(ConnectionParameter)
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enum IntermediateError
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{
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ResponseCrcError,
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ResponseRequestMismatch
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};
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Q_ENUM(IntermediateError)
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explicit QModbusDevice(QObject *parent = nullptr);
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~QModbusDevice();
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QVariant connectionParameter(ConnectionParameter parameter) const;
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void setConnectionParameter(ConnectionParameter parameter, const QVariant &value);
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bool connectDevice();
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void disconnectDevice();
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State state() const;
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Error error() const;
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QString errorString() const;
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QIODevice *device() const;
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Q_SIGNALS:
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void errorOccurred(QModbusDevice::Error error);
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void stateChanged(QModbusDevice::State state);
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protected:
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QModbusDevice(QModbusDevicePrivate &dd, QObject *parent = nullptr);
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void setState(QModbusDevice::State newState);
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void setError(const QString &errorText, QModbusDevice::Error error);
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virtual bool open() = 0;
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virtual void close() = 0;
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};
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Q_DECLARE_TYPEINFO(QModbusDevice::Error, Q_PRIMITIVE_TYPE);
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Q_DECLARE_TYPEINFO(QModbusDevice::State, Q_PRIMITIVE_TYPE);
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Q_DECLARE_TYPEINFO(QModbusDevice::ConnectionParameter, Q_PRIMITIVE_TYPE);
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Q_DECLARE_TYPEINFO(QModbusDevice::IntermediateError, Q_PRIMITIVE_TYPE);
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QT_END_NAMESPACE
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#endif // QMODBUSDEVICE_H
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