/*

 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: Telephony Multimedia Service

 *

 */

#ifndef TMSCSUPLINK_H

#define TMSCSUPLINK_H

#include <glib.h>

#include "tmscsdevsound.h"

namespace TMS {

/**

 *  Provides Uplink stream functionality.

 *

 */

NONSHARABLE_CLASS(TMSCSUplink) : public TMSCSDevSound

    {

public:

    virtual ~TMSCSUplink();

    /**

     * Determines mic mute state.

     *

     * @return ETrue - mic is muted, EFalse - mic is not muted.

     */

    gboolean IsMuted();

    /**

     * Set mic gain.

     */

    void SetGain(gint gain);

    /**

     * Get mic muted.

     */

    gint Gain();

    /**

     * Get max gain.

     */

    gint MaxGain();

    // from base class MDevSoundObserver

    /**

     * From MDevSoundObserver.

     * Indication from the devsound that Uplink has been activated

     * successfully.

     */

    void BufferToBeEmptied(CMMFBuffer* aBuffer);

    /**

     * From MDevSoundObserver

     * Indication from devsound that Uplink activation has failed.

     */

    void RecordError(TInt aError);

private:

    /**

     * From TMSCSDevSound.

     * Tries to activate the mic stream.

     */

    void DoActivateL();

protected:

    TMSCSUplink(TMSCSDevSoundObserver& aObserver);

    };

} //namespace TMS

#endif // TMSCSUPLINK_H