AppleGenericPCATADriver.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 _APPLEGENERICPCATADRIVER_H
#define _APPLEGENERICPCATADRIVER_H

#include <IOKit/IOTypes.h>
#include <IOKit/ata/IOATAController.h>
#include <IOKit/IOInterruptEventSource.h>

class AppleGenericPCATADriver : public IOATAController
{
    OSDeclareDefaultStructors( AppleGenericPCATADriver )

private:
    UInt16                         _irq;
    UInt16                         _ioPorts;
    IOInterruptEventSource *       _intSrc;
    AppleGenericPCATAController *  _provider;

    /* Interrupt event source action */
    
    static void interruptOccurred( OSObject *               owner,
                                   IOInterruptEventSource * evtSrc,
                                   int                      count );

public:
    /* IOService overrides */

    virtual bool start( IOService * provider );

    virtual void free();

    virtual IOWorkLoop * getWorkLoop() const;

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

    /* Mandatory IOATAController overrides */

	virtual bool configureTFPointers();

	virtual IOReturn provideBusInfo( IOATABusInfo * infoOut );

    virtual IOReturn getConfig( IOATADevConfig * configOut,
                                UInt32           unitNumber );

    virtual IOReturn selectConfig( IOATADevConfig * configRequest,
                                   UInt32           unitNumber );

    /* Optional IOATAController overrides */

    virtual UInt32 scanForDrives();

    virtual IOReturn handleQueueFlush();
};

#endif /* !_APPLEGENERICPCATADRIVER_H */