iokit/IOKit/storage/ata/IOATAHDDriveNub.h

   1 /*
   2  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
  24  *
  25  * IOATAHDDriveNub.h
  26  *
  27  * This subclass implements a relay to a protocol and device-specific
  28  * provider.
  29  *
  30  * HISTORY
  31  * Aug 27, 1999    jliu - Created.
  32  */
  33
  34 #ifndef _IOATAHDDRIVENUB_H
  35 #define _IOATAHDDRIVENUB_H
  36
  37 #include <IOKit/IOTypes.h>
  38 #include <IOKit/storage/IOBlockStorageDevice.h>
  39
  40 class IOATAHDDrive;
  41
  42 class IOATAHDDriveNub : public IOBlockStorageDevice
  43 {
  44     OSDeclareDefaultStructors(IOATAHDDriveNub)
  45
  46 protected:
  47     IOATAHDDrive *     _provider;
  48
  49 public:
  50     /*
  51      * Overrides from IOService.
  52      */
  53     virtual bool       attach(IOService * provider);
  54     virtual void       detach(IOService * provider);
  55
  56     /*
  57      * Mandatory overrides from IOBlockStorageDevice.
  58      */
  59     virtual IOReturn   doAsyncReadWrite(IOMemoryDescriptor * buffer,
  60                                         UInt32               block,
  61                                         UInt32               nblks,
  62                                         IOStorageCompletion  completion);
  63     virtual IOReturn   doSyncReadWrite(IOMemoryDescriptor * buffer,
  64                                        UInt32               block,
  65                                        UInt32               nblks);
  66     virtual IOReturn   doEjectMedia();
  67     virtual IOReturn   doFormatMedia(UInt64 byteCapacity);
  68     virtual UInt32     doGetFormatCapacities(UInt64 * capacities,
  69                                              UInt32   capacitiesMaxCount) const;
  70     virtual IOReturn   doLockUnlockMedia(bool doLock);
  71     virtual IOReturn   doSynchronizeCache();
  72     virtual char *     getVendorString();
  73     virtual char *     getProductString();
  74     virtual char *     getRevisionString();
  75     virtual char *     getAdditionalDeviceInfoString();
  76     virtual IOReturn   reportBlockSize(UInt64 * blockSize);
  77     virtual IOReturn   reportEjectability(bool * isEjectable);
  78     virtual IOReturn   reportLockability(bool * isLockable);
  79     virtual IOReturn   reportMediaState(bool * mediaPresent, bool * changed);
  80     virtual IOReturn   reportPollRequirements(bool * pollIsRequired,
  81                                               bool * pollIsExpensive);
  82     virtual IOReturn   reportMaxReadTransfer (UInt64 blockSize,UInt64 * max);
  83     virtual IOReturn   reportMaxValidBlock(UInt64 * maxBlock);
  84     virtual IOReturn   reportMaxWriteTransfer(UInt64 blockSize,UInt64 * max);
  85     virtual IOReturn   reportRemovability(bool * isRemovable);
  86     virtual IOReturn   reportWriteProtection(bool * isWriteProtected);
  87 };
  88
  89 #endif /* !_IOATAHDDRIVENUB_H */