remotecontrol/avrcp/avrcpipc/src/avrcpipc.cpp
changeset 51 20ac952a623c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/remotecontrol/avrcp/avrcpipc/src/avrcpipc.cpp	Wed Oct 13 16:20:29 2010 +0300
@@ -0,0 +1,161 @@
+// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "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:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// This file contains structures shared by the AVRCP API with the AVRCP bearer.
+// 
+//
+
+/**
+ @file
+ @internalTechnology
+ @released
+*/
+
+#include <e32std.h>
+#include <remcon/avrcpspec.h>
+#include "avrcpipc.h"
+
+
+EXPORT_C TMetadataTransferPDU RAvrcpIPC::GetPDUIdFromIPCOperationId(TInt aOperationId)
+	{
+	// We send the PDU id through IPC to the playerinformationapi, mediainformationapi
+	// groupnavigationapi or batterystatusapi. However, PDU 0x31 (Register Notification
+	// also requires sending an event id. We encode this as the top byte, and the PDU
+	// id as the lower byte, so mask off the top-byte and return just the PDU id.
+	return static_cast<TMetadataTransferPDU>(aOperationId & 0x00FF);
+	}
+
+EXPORT_C TRegisterNotificationEvent RAvrcpIPC::GetEventIdFromIPCOperationId(TInt aOperationId)
+	{
+	// See the above comment in GetPDUIdFromIPCOperationId. This performs the opposite operation
+	return static_cast<TRegisterNotificationEvent>((aOperationId & 0xFF00) >> 8);
+	}
+
+EXPORT_C TInt RAvrcpIPC::SetIPCOperationIdFromEventId(TRegisterNotificationEvent aEventId)
+	{
+	// See the comment in GetPDUIdFromIPCOperationId. This sets the PDU id
+	// as the lower byte to RegisterNotification (0x31) and the eventId as
+	// the top byte.
+	return (ERegisterNotification + (aEventId << 8));
+	}
+
+// Big-endian methods; Symbian native methods are little-endian
+// This means that we can directly send these packets into the
+// wire in the bearer, since they're big-endian. We could have
+// used the BigEndian class, but that requires a dependency on
+// the esock.lib library, so do it ourselves.
+
+TUint8 RAvrcpIPC::Read8L()
+	{
+	return iReadStream.ReadUint8L();
+	}
+
+TUint16 RAvrcpIPC::Read16L()
+	{
+	TUint16 val = 0;
+	val  = (static_cast<TUint16>(iReadStream.ReadUint8L()) << 8);
+	val += iReadStream.ReadUint8L();
+	return val;
+	}
+
+TUint32 RAvrcpIPC::Read24L()
+	{
+	TUint32 val = 0;
+	val += (static_cast<TUint32>(iReadStream.ReadUint8L()) << 16);
+	val += (static_cast<TUint32>(iReadStream.ReadUint8L()) << 8);
+	val += iReadStream.ReadUint8L();
+	return val;
+	}
+
+TUint32 RAvrcpIPC::Read32L()
+	{
+	TUint32 val = 0;
+	val  = (static_cast<TUint32>(iReadStream.ReadUint8L()) << 24);
+	val += (static_cast<TUint32>(iReadStream.ReadUint8L()) << 16);
+	val += (static_cast<TUint32>(iReadStream.ReadUint8L()) << 8);
+	val += iReadStream.ReadUint8L();
+	return val;
+	}
+
+TUint64 RAvrcpIPC::Read64L()
+	{
+	TUint64 val;
+	val  = (static_cast<TUint64>(iReadStream.ReadUint8L()) << 56);
+	val += (static_cast<TUint64>(iReadStream.ReadUint8L()) << 48);
+	val += (static_cast<TUint64>(iReadStream.ReadUint8L()) << 40);
+	val += (static_cast<TUint64>(iReadStream.ReadUint8L()) << 32);
+	val += (static_cast<TUint64>(iReadStream.ReadUint8L()) << 24);
+	val += (static_cast<TUint64>(iReadStream.ReadUint8L()) << 16);
+	val += (static_cast<TUint64>(iReadStream.ReadUint8L()) << 8);
+	val += iReadStream.ReadUint8L();
+	return val;
+	}
+
+void RAvrcpIPC::Write8L(TUint8 aVal)
+	{
+	iStream.WriteUint8L(aVal);
+	}
+
+void RAvrcpIPC::Write16L(TUint16 aVal)
+	{
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 8));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal));
+	}
+
+void RAvrcpIPC::Write24L(TUint32 aVal)
+	{
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 16));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 8));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal));
+	}
+
+void RAvrcpIPC::Write32L(TUint32 aVal)
+	{
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 24));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 16));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 8));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal));
+	}
+
+void RAvrcpIPC::Write64L(TUint64 aVal)
+	{
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 56));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 48));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 40));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 32));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 24));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 16));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal >> 8));
+	iStream.WriteUint8L(static_cast<TUint8>(aVal));
+	}
+void RAvrcpIPC::Close()
+	{
+	iReadStream.Close();
+	iStream.Close();
+	}
+
+EXPORT_C void RAvrcpIPCError::ReadL(const TDesC8& aData)
+	{
+	iReadStream.Open(aData);
+	iError = Read32L();   // Read Big-Endian error code
+	iReadStream.Close();
+	}
+
+EXPORT_C void RAvrcpIPCError::WriteL(TDes8& aOutData)
+	{
+	aOutData.Zero();      // Error code is always before any other data
+	iStream.Open(aOutData);
+	Write32L(iError);
+	iStream.CommitL();
+	}
+