baseport/syborg/soundsc/virtio_io.cpp
author Maciej Jablonski <maciej.jablonski@accenture.com>
Thu, 04 Mar 2010 00:55:21 +0000
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Audio driver for qemu simulator
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/*
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Accenture Ltd
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*
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* Contributors:
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*
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* Description: This file is a part of sound driver for Syborg adaptation.
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*
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*/
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#include "virtio_io.h"
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namespace VirtIo
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{
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void DIo::GetDeviceIds( TUint32 &aPeripheralId, TUint32 &aDeviceId )
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	{
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	aPeripheralId = read( EIoID );
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	aDeviceId = read( EIoDevType );
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	}
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void DIo::SetQueueBase( TUint aQId, TAny* iDescRegion )
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	{
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	TUint32 phAddr = iDescRegion?Epoc::LinearToPhysical( reinterpret_cast<TUint32>( iDescRegion ) ):0;
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	write(EIoQueueSelect, aQId);
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	write(EIoQueueBase, phAddr );
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	SYBORG_VIRTIO_DEBUG("SetQueueBase Q%d %x", aQId, phAddr );
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	}		
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TAny* DIo::GetQueueBase( TUint aQId)
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	{
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	write(EIoQueueSelect, aQId);
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	return reinterpret_cast<TAny*>( read(EIoQueueBase) );
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	}
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} // namespace VirtIo