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// Copyright (C) 2017 Ford Motor Company.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef PASSTHRUCAN_PASSTHRUCANIO_H
#define PASSTHRUCAN_PASSTHRUCANIO_H
#include "j2534passthru.h"
#include <QtSerialBus/qcanbusdevice.h>
#include <QtSerialBus/qcanbusframe.h>
#include <QByteArray>
#include <QList>
#include <QMutex>
#include <QObject>
#include <QString>
#include <QTimer>
#include <QVariant>
QT_BEGIN_NAMESPACE
class PassThruCanIO : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(PassThruCanIO)
public:
static const uint pollTimeout = 100; // ms
explicit PassThruCanIO(QObject *parent = nullptr);
virtual ~PassThruCanIO();
Q_INVOKABLE void open(const QString &library, const QByteArray &subDev, uint bitRate);
Q_INVOKABLE void close();
Q_INVOKABLE void applyConfig(QCanBusDevice::ConfigurationKey key, const QVariant &value);
Q_INVOKABLE void listen();
// Internally locked; safe to call directly from any thread.
bool enqueueMessage(const QCanBusFrame &frame);
Q_SIGNALS:
void errorOccurred(const QString &description, QCanBusDevice::CanBusError error);
void messagesReceived(QList<QCanBusFrame> frames);
void messagesSent(qint64 count);
void openFinished(bool success);
void closeFinished();
private:
bool setMessageFilters(const QList<QCanBusDevice::Filter> &filters);
bool setConfigValue(J2534::Config::Parameter param, ulong value);
void pollForMessages();
bool writeMessages();
void readMessages(bool writePending);
J2534::PassThru * m_passThru = nullptr;
J2534::PassThru::Handle m_deviceId = 0;
J2534::PassThru::Handle m_channelId = 0;
QTimer * m_idleNotifier = nullptr;
QList<J2534::Message> m_ioBuffer;
QMutex m_writeGuard;
QList<QCanBusFrame> m_writeQueue;
};
QT_END_NAMESPACE
#endif // PASSTHRUCAN_PASSTHRUCANIO_H
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