1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // e32test\multimedia\d_mmcsc.h

    15 // The interface to a device driver which creates a shared chunk - for use with the sound driver tests.

    16 // This driver uses only generic kernel APIs and so need not be built from each variant.

    17 // 

    18 //

    19 

    20 /**

    21  @file

    22  @internalComponent

    23  @test

    24 */

    25 

    26 #if !defined(__D_MMCSC_H__)

    27 #define __D_MMCSC_H__

    28 

    29 #include <e32cmn.h>

    30 #ifndef __KERNEL_MODE__

    31 #include <e32std.h>

    32 #endif

    33 

    34 _LIT(KDevMmCScName,"MmCSc");

    35 

    36 const TInt KMmCScBufSize=153600;	// 150K

    37 const TInt KMmCScNumBuffers=8;

    38 

    39 struct SBufSpecList

    40 	{

    41 	/** The first entry of the buffer offset list. This list holds the offset from the start of the chunk

    42 	for each buffer. This list is only valid if the flag KScFlagBufOffsetListInUse is set in

    43 	TSharedChunkBufConfigBase::iFlags. */

    44 	TInt iBufferOffset;

    45 	TInt iBufferId;

    46 	};

    47 

    48 class TMmSharedChunkBufConfig : public TSharedChunkBufConfigBase

    49 	{

    50 public:

    51 	/** The buffer offset list. This holds the offset from the start of the chunk for each buffer. This list is

    52 	only valid if the flag KScFlagBufOffsetListInUse is set in TSharedChunkBufConfigBase::iFlags. */

    53 	struct SBufSpecList iSpec[KMmCScNumBuffers];

    54 	};

    55 

    56 class TCapsMmCScV01

    57 	{

    58 public:

    59 	TVersion iVersion;

    60 	};

    61 

    62 class RMmCreateSc : public RBusLogicalChannel

    63 	{

    64 public:

    65 	enum TControl

    66 		{ EGetChunkHandle,EGetBufInfo };

    67 #ifndef __KERNEL_MODE__

    68 public:

    69 	inline TInt Open()

    70 		{ return DoCreate(KDevMmCScName,TVersion(0,1,1),KNullUnit,NULL,NULL,EOwnerThread);}

    71 	inline TInt GetChunkHandle(RChunk& aChunk)

    72 		{ return(aChunk.SetReturnedHandle(DoControl(EGetChunkHandle)));}

    73 	inline TInt GetBufInfo(TDes8& aBufInfo)

    74 		{ return(DoControl(EGetBufInfo,(TAny*)&aBufInfo));}

    75 #endif

    76 	};

    77 

    78 #endif // __D_MMCSC_H__