IOBlockStorageDevice.cpp   [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
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 */
#include <IOKit/IOLib.h>
#include <IOKit/storage/IOBlockStorageDevice.h>

#define	super	IOService
OSDefineMetaClassAndAbstractStructors(IOBlockStorageDevice,IOService)

bool
IOBlockStorageDevice::init(OSDictionary * properties)
{
    bool result;

    result = super::init(properties);
    if (result) {
        result = setProperty(kIOBlockStorageDeviceTypeKey,
                             kIOBlockStorageDeviceTypeGeneric);
    }
    
    return(result);
}

/* DEPRECATED */ IOReturn
/* DEPRECATED */ IOBlockStorageDevice::doSyncReadWrite(IOMemoryDescriptor *buffer,
/* DEPRECATED */                                       UInt32 block,UInt32 nblks)
/* DEPRECATED */ {
/* DEPRECATED */    return(kIOReturnUnsupported);
/* DEPRECATED */ }

IOReturn
IOBlockStorageDevice::doAsyncReadWrite(IOMemoryDescriptor *buffer,
                                       UInt64 block,UInt64 nblks,
                                       IOStorageCompletion completion)
{
    if ((block >> 32) || (nblks >> 32)) {
        return(kIOReturnUnsupported);
    } else {
        return(doAsyncReadWrite(buffer,(UInt32)block,(UInt32)nblks,completion));
    }
}

OSMetaClassDefineReservedUsed(IOBlockStorageDevice, 0);

OSMetaClassDefineReservedUnused(IOBlockStorageDevice,  1);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice,  2);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice,  3);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice,  4);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice,  5);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice,  6);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice,  7);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice,  8);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice,  9);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 10);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 11);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 12);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 13);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 14);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 15);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 16);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 17);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 18);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 19);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 20);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 21);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 22);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 23);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 24);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 25);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 26);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 27);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 28);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 29);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 30);
OSMetaClassDefineReservedUnused(IOBlockStorageDevice, 31);