/*
 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

#ifndef __APPLE_INTEL_AC97_AUDIO_DRIVER_H
#define __APPLE_INTEL_AC97_AUDIO_DRIVER_H

#include <IOKit/audio/IOAudioDevice.h>
#include "AC97Codec.h"

class AppleIntelAC97AudioDriver : public IOAudioDevice
{
    OSDeclareDefaultStructors( AppleIntelAC97AudioDriver )

protected:
    AppleIntelAC97Codec * _audioCodec;
    IOAudioEngine *       _audioEngine;

    static IOReturn  audioControlChangeHandler( IOService *      target,
                                                IOAudioControl * control,
                                                SInt32           oldValue,
                                                SInt32           newValue );

    virtual bool     createAudioEngine();
    virtual bool     createAudioPorts();

public:
    virtual bool     initHardware( IOService * provider );

    virtual void     free();

    virtual IOReturn message( UInt32      type,
                              IOService * provider,
                              void *      arg );
};

#endif /* !__APPLE_INTEL_AC97_AUDIO_DRIVER_H */