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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtSerialBus module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmodbusrtuserialmaster.h"
#include "qmodbusrtuserialmaster_p.h"
#include <QtSerialBus/qmodbus.h>
QT_BEGIN_NAMESPACE
/*!
\class QModbusRtuSerialMaster
\inmodule QtSerialBus
\since 5.6
\brief The QModbusRtuSerialMaster class represents a Modbus client
that uses a serial bus for its communication with the Modbus server.
Communication via Modbus requires the interaction between a single
Modbus client instance and multiple Modbus servers. This class
provides the server implementation via a serial port.
*/
/*!
Constructs a serial Modbus master with the specified \a parent.
*/
QModbusRtuSerialMaster::QModbusRtuSerialMaster(QObject *parent)
: QModbusClient(*new QModbusRtuSerialMasterPrivate, parent)
{
Q_D(QModbusRtuSerialMaster);
d->setupMaster();
}
/*!
\internal
*/
QModbusRtuSerialMaster::~QModbusRtuSerialMaster()
{
}
/*!
Connects the Modbus master to a serial port. \a deviceName
represents the serial port to which the Modbus servers are connected.
The function returns \c true on success; otherwise \c false.
\sa disconnectDevice()
*/
bool QModbusRtuSerialMaster::connectDevice(const QString &deviceName)
{
Q_D(QModbusRtuSerialMaster);
if (!d->pluginMaster)
return false;
// TODO remove setPortName() usage
d->pluginMaster->setPortName(deviceName);
// TODO Implement QModbusRtuSerialMaster::connectDevice(QString)
return d->pluginMaster->connectDevice();
}
/*!
\internal
*/
QModbusRtuSerialMaster::QModbusRtuSerialMaster(QModbusRtuSerialMasterPrivate &dd, QObject *parent)
: QModbusClient(dd, parent)
{
Q_D(QModbusRtuSerialMaster);
d->setupMaster();
}
/*!
\reimp
*/
bool QModbusRtuSerialMaster::open()
{
// TODO remove later on
// The function is not needed anymore as connectDevice(QString)
// does not rely on it anymore.
return false;
}
/*!
\reimp
*/
void QModbusRtuSerialMaster::close()
{
Q_D(QModbusRtuSerialMaster);
if (!d->pluginMaster)
return;
d->pluginMaster->disconnectDevice();
}
// forward the state changes
void QModbusRtuSerialMasterPrivate::handleStateChanged(QModbusDevice::ModbusDeviceState state)
{
Q_Q(QModbusRtuSerialMaster);
q->setState(state);
}
// forward the error changes
void QModbusRtuSerialMasterPrivate::handleErrorOccurred(QModbusDevice::ModbusError error)
{
Q_Q(QModbusRtuSerialMaster);
q->setError(pluginMaster ? pluginMaster->errorString() : QString(), error);
}
/*!
\reimp
*/
QModbusReply *QModbusRtuSerialMaster::write(const QModbusDataUnit &request, int slaveId)
{
Q_D(QModbusRtuSerialMaster);
if (!d->pluginMaster)
return 0;
return d->pluginMaster->write(request, slaveId);
}
/*!
\reimp
*/
QModbusReply *QModbusRtuSerialMaster::read(const QModbusDataUnit &request, int slaveId)
{
Q_D(QModbusRtuSerialMaster);
if (!d->pluginMaster)
return 0;
return d->pluginMaster->read(request, slaveId);
}
/*
TODO: implement
*/
QModbusReplyEx *QModbusRtuSerialMaster::sendReadRequest(const QModbusDataUnit &read, int slaveId)
{
Q_UNUSED(read)
Q_UNUSED(slaveId)
return Q_NULLPTR;
}
QModbusReplyEx *QModbusRtuSerialMaster::sendWriteRequest(const QModbusDataUnit &write, int slaveId)
{
Q_UNUSED(write)
Q_UNUSED(slaveId)
return Q_NULLPTR;
}
QModbusReplyEx *QModbusRtuSerialMaster::sendReadWriteRequest(const QModbusDataUnit &read,
const QModbusDataUnit &write, int slaveId)
{
Q_UNUSED(read)
Q_UNUSED(write)
Q_UNUSED(slaveId)
return Q_NULLPTR;
}
#include "moc_qmodbusrtuserialmaster.cpp"
QT_END_NAMESPACE
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