/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef V4LRADIOCONTROL_H
#define V4LRADIOCONTROL_H

#include <QtCore/qobject.h>
#include <QtCore/qtimer.h>
#include <QtCore/qdatetime.h>

#include <qradiotunercontrol.h>

#include <linux/types.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <linux/videodev2.h>

QT_USE_NAMESPACE

class V4LRadioService;

class V4LRadioControl : public QRadioTunerControl
{
    Q_OBJECT
public:
    V4LRadioControl(QObject *parent = 0);
    ~V4LRadioControl();

    bool isAvailable() const;
    QMultimedia::AvailabilityStatus availability() const;

    QRadioTuner::State state() const;

    QRadioTuner::Band band() const;
    void setBand(QRadioTuner::Band b);
    bool isBandSupported(QRadioTuner::Band b) const;

    int frequency() const;
    int frequencyStep(QRadioTuner::Band b) const;
    QPair<int,int> frequencyRange(QRadioTuner::Band b) const;
    void setFrequency(int frequency);

    bool isStereo() const;
    QRadioTuner::StereoMode stereoMode() const;
    void setStereoMode(QRadioTuner::StereoMode mode);

    int signalStrength() const;

    int volume() const;
    void setVolume(int volume);

    bool isMuted() const;
    void setMuted(bool muted);

    bool isSearching() const;
    void cancelSearch();

    void searchForward();
    void searchBackward();

    void start();
    void stop();

    QRadioTuner::Error error() const;
    QString errorString() const;

private slots:
    void search();

private:
    bool initRadio();
    void setVol(int v);
    int  getVol();

    int fd;

    bool m_error;
    bool muted;
    bool stereo;
    bool low;
    bool available;
    int  tuners;
    int  step;
    int  vol;
    int  sig;
    bool scanning;
    bool forward;
    QTimer* timer;
    QRadioTuner::Band   currentBand;
    qint64 freqMin;
    qint64 freqMax;
    qint64 currentFreq;
    QTime  playTime;
};

#endif