RackMac3_1_CPUBUniFanCtrlLoop.h   [plain text]


/*
 * Copyright (c) 2002-2004 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@
 */
/*
 * Copyright (c) 2003-2004 Apple Computer, Inc.  All rights reserved.
 *
 */


#ifndef _RACKMAC3_1_CPUBUNIFANCTRLLOOP_H
#define _RACKMAC3_1_CPUBUNIFANCTRLLOOP_H

#include "IOPlatformPIDCtrlLoop.h"

class RackMac3_1_CPUBUniFanCtrlLoop : public IOPlatformPIDCtrlLoop
{

    OSDeclareDefaultStructors(RackMac3_1_CPUBUniFanCtrlLoop)

protected:

    IOPlatformControl * secondOutputControl;
    IOPlatformControl * thirdOutputControl;

    // overrides from OSObject superclass
    virtual bool init( void );
    virtual void free( void );
    virtual bool cacheMetaState( const OSDictionary * metaState );

public:

    // By setting a deadline and handling the deadlinePassed() callback, we get a periodic timer
    // callback that is funnelled through the platform plugin's command gate.

    virtual IOReturn initPlatformCtrlLoop(const OSDictionary *dict);
    virtual void deadlinePassed( void );
    virtual bool updateMetaState( void );
    virtual ControlValue calculateNewTarget( void ) const;
    virtual void sendNewTarget( ControlValue newTarget );
    virtual void sensorRegistered( IOPlatformSensor * aSensor );
    virtual void controlRegistered( IOPlatformControl * aControl );
};

#endif	// _RACKMAC3_1_CPUBUNIFANCTRLLOOP_H