/*
 * Copyright (c) 2003 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@
*
*	$Id: AppleEHCItdMemoryBlock.h,v 1.4 2003/08/20 19:41:32 nano Exp $
*
*	$Log: AppleEHCItdMemoryBlock.h,v $
*	Revision 1.4  2003/08/20 19:41:32  nano
*	
*	Bug #:
*	New version's of Nima's USB Prober (2.2b17)
*	3382540  Panther: Ejecting a USB CardBus card can freeze a machine
*	3358482  Device Busy message with Modems and IOUSBFamily 201.2.14 after sleep
*	3385948  Need to implement device recovery on High Speed Transaction errors to full speed devices
*	3377037  USB EHCI: returnTransactions can cause unstable queue if transactions are aborted
*	
*	Also, updated most files to use the id/log functions of cvs
*	
*	Submitted by: nano
*	Reviewed by: rhoads/barryt/nano
*	
 */

#include <IOKit/IOBufferMemoryDescriptor.h>

#include "AppleUSBEHCI.h"
#include "USBEHCI.h"

class AppleEHCItdMemoryBlock : public IOBufferMemoryDescriptor
{
    OSDeclareDefaultStructors(AppleEHCItdMemoryBlock);
    
#define TDsPerBlock	(kEHCIPageSize / sizeof(EHCIGeneralTransferDescriptorShared))

private:
    EHCIGeneralTransferDescriptor	_TDs[TDsPerBlock];
    IOPhysicalAddress			_sharedMem;
    AppleEHCItdMemoryBlock		*_nextBlock;
    
public:

    static AppleEHCItdMemoryBlock 	*NewMemoryBlock(void);
    UInt32				NumTDs(void);
    EHCIGeneralTransferDescriptorPtr	GetTD(UInt32 index);
    void				SetNextBlock(AppleEHCItdMemoryBlock *next);
    AppleEHCItdMemoryBlock		*GetNextBlock(void);
    
};