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| 1 | /**************************************************************************** |
|---|---|
| 2 | ** |
| 3 | ** Copyright (C) 2017 The Qt Company Ltd. |
| 4 | ** Contact: http://www.qt.io/licensing/ |
| 5 | ** |
| 6 | ** This file is part of the QtSerialBus module of the Qt Toolkit. |
| 7 | ** |
| 8 | ** $QT_BEGIN_LICENSE:LGPL3$ |
| 9 | ** Commercial License Usage |
| 10 | ** Licensees holding valid commercial Qt licenses may use this file in |
| 11 | ** accordance with the commercial license agreement provided with the |
| 12 | ** Software or, alternatively, in accordance with the terms contained in |
| 13 | ** a written agreement between you and The Qt Company. For licensing terms |
| 14 | ** and conditions see http://www.qt.io/terms-conditions. For further |
| 15 | ** information use the contact form at http://www.qt.io/contact-us. |
| 16 | ** |
| 17 | ** GNU Lesser General Public License Usage |
| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
| 19 | ** General Public License version 3 as published by the Free Software |
| 20 | ** Foundation and appearing in the file LICENSE.LGPLv3 included in the |
| 21 | ** packaging of this file. Please review the following information to |
| 22 | ** ensure the GNU Lesser General Public License version 3 requirements |
| 23 | ** will be met: https://www.gnu.org/licenses/lgpl.html. |
| 24 | ** |
| 25 | ** GNU General Public License Usage |
| 26 | ** Alternatively, this file may be used under the terms of the GNU |
| 27 | ** General Public License version 2.0 or later as published by the Free |
| 28 | ** Software Foundation and appearing in the file LICENSE.GPL included in |
| 29 | ** the packaging of this file. Please review the following information to |
| 30 | ** ensure the GNU General Public License version 2.0 requirements will be |
| 31 | ** met: http://www.gnu.org/licenses/gpl-2.0.html. |
| 32 | ** |
| 33 | ** $QT_END_LICENSE$ |
| 34 | ** |
| 35 | ****************************************************************************/ |
| 36 | #ifndef QMODBUSDEVICE_H |
| 37 | #define QMODBUSDEVICE_H |
| 38 | |
| 39 | #include <QtCore/qobject.h> |
| 40 | #include <QtCore/qiodevice.h> |
| 41 | #include <QtSerialBus/qtserialbusglobal.h> |
| 42 | |
| 43 | QT_BEGIN_NAMESPACE |
| 44 | |
| 45 | class QModbusDevicePrivate; |
| 46 | |
| 47 | class Q_SERIALBUS_EXPORT QModbusDevice : public QObject |
| 48 | { |
| 49 | Q_OBJECT |
| 50 | Q_DECLARE_PRIVATE(QModbusDevice) |
| 51 | |
| 52 | public: |
| 53 | enum Error { |
| 54 | NoError, |
| 55 | ReadError, |
| 56 | WriteError, |
| 57 | ConnectionError, |
| 58 | ConfigurationError, |
| 59 | TimeoutError, |
| 60 | ProtocolError, |
| 61 | ReplyAbortedError, |
| 62 | UnknownError |
| 63 | }; |
| 64 | Q_ENUM(Error) |
| 65 | |
| 66 | enum State { |
| 67 | UnconnectedState, |
| 68 | ConnectingState, |
| 69 | ConnectedState, |
| 70 | ClosingState |
| 71 | }; |
| 72 | Q_ENUM(State) |
| 73 | |
| 74 | enum ConnectionParameter { |
| 75 | SerialPortNameParameter, |
| 76 | SerialParityParameter, |
| 77 | SerialBaudRateParameter, |
| 78 | SerialDataBitsParameter, |
| 79 | SerialStopBitsParameter, |
| 80 | |
| 81 | NetworkPortParameter, |
| 82 | NetworkAddressParameter, |
| 83 | |
| 84 | // Reserved |
| 85 | UserParameter = 0x100 // ### Qt6: remove |
| 86 | }; |
| 87 | Q_ENUM(ConnectionParameter) |
| 88 | |
| 89 | explicit QModbusDevice(QObject *parent = nullptr); |
| 90 | ~QModbusDevice(); |
| 91 | |
| 92 | QVariant connectionParameter(int parameter) const; |
| 93 | void setConnectionParameter(int parameter, const QVariant &value); |
| 94 | |
| 95 | bool connectDevice(); |
| 96 | void disconnectDevice(); |
| 97 | |
| 98 | State state() const; |
| 99 | |
| 100 | Error error() const; |
| 101 | QString errorString() const; |
| 102 | |
| 103 | QIODevice *device() const; |
| 104 | |
| 105 | Q_SIGNALS: |
| 106 | void errorOccurred(QModbusDevice::Error error); |
| 107 | void stateChanged(QModbusDevice::State state); |
| 108 | |
| 109 | protected: |
| 110 | QModbusDevice(QModbusDevicePrivate &dd, QObject *parent = nullptr); |
| 111 | |
| 112 | void setState(QModbusDevice::State newState); |
| 113 | void setError(const QString &errorText, QModbusDevice::Error error); |
| 114 | virtual bool open() = 0; |
| 115 | virtual void close() = 0; |
| 116 | }; |
| 117 | |
| 118 | Q_DECLARE_TYPEINFO(QModbusDevice::Error, Q_PRIMITIVE_TYPE); |
| 119 | Q_DECLARE_TYPEINFO(QModbusDevice::State, Q_PRIMITIVE_TYPE); |
| 120 | Q_DECLARE_TYPEINFO(QModbusDevice::ConnectionParameter, Q_PRIMITIVE_TYPE); |
| 121 | |
| 122 | QT_END_NAMESPACE |
| 123 | |
| 124 | #endif // QMODBUSDEVICE_H |
| 125 |
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