AC97AudioDriver.h   [plain text]


/*
 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The 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, QUIET ENJOYMENT 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( OSObject *       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 */