/*

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Accenture Ltd

*

* Contributors:

*

* Description: This file is a part of sound driver for Syborg adaptation.

*

*/

#ifndef VIRTIO_AUDIO_DEFS_H //x

#define VIRTIO_AUDIO_DEFS_H

#include <e32def.h>

/// @file virtio_audio_defs.h

/// most of definitions here come from VirtIo Audio spec

/// and was made compatible to the qemu backend (which means diverged from spec)

namespace VirtIo

{

namespace Audio

{

static const TUint KMaxSGLItemCountPerAudioBuffer = 64;

enum CommandId

	{

	ECmdSetEndian=1,

	ECmdSetChannels=2,

	ECmdSetFormat=3,

	ECmdSetFrequency=4,

	ECmdInit=5,

	ECmdRun=6

	};

enum FormatId

	{

	EFormatU8=0,

	EFormatS8=1,

	EFormatU16=2,

	EFormatS16=3,

	EFormatU32=4,

	EFormatS32=5

	};

enum RunType

	{

	EDoStop = 0,

	EDoRun = 1

	};

// note the values are opposite to what spec says

enum StreamDirection

	{

	EDirectionPlayback = 0,

	};

struct TCommand

	{

	TUint32 iCommand;

	TUint32 iStream;

	TUint32 iArg;

	};

struct TBufferInfo

	{

	TUint32 bufferSize;

	TUint32 iA[3];	// not really documented

	};	

static const TUint32 KVirtIoPeripheralId = 0xc51d000a;

static const TUint32 KVirtIoDeviceId = 0xffff;

} // namespace Audio

} // namespace VirtIo

#endif