--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/systemswstubs/ssyreference/inc/ssyreferencechanneldataprovider.h	Mon Jan 18 20:06:52 2010 +0200
@@ -0,0 +1,153 @@
+/*
+* Copyright (c) 2006-2008 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:  Reference implementation of SSY Channel Data Provider interface
+*
+*/
+
+
+#ifndef SSYREFERENCECHANNELDATAPROVIDER_H
+#define SSYREFERENCECHANNELDATAPROVIDER_H
+
+#include <ssychanneldataprovider.h>
+
+class CSsyReferenceChannel;
+class TSsyReferenceMsg;
+
+/**
+ *  Channel data provider implementation.
+ *
+ *  @lib ssyreferenceplugin.lib
+ *  @since S60 5.0
+ */
+class CSsyReferenceChannelDataProvider : public CBase, public MSsyChannelDataProvider
+    {
+
+public:
+
+    /**
+     * Two-phase constructor
+     *
+     * @since S60 5.0
+     * @param[in] aChannel Reference to channel this provider belongs to
+     * @return CSsyReferenceChannelDataProvider* Pointer to created CSsyReferenceControl object
+     */
+    static CSsyReferenceChannelDataProvider* NewL( CSsyReferenceChannel& aChannel );
+
+    /**
+     * Virtual destructor
+     *
+     * @since S60 5.0
+     */
+    virtual ~CSsyReferenceChannelDataProvider();
+
+// from base class MSsyChannelDataProvider
+
+    /**
+     * From MSsyChannelDataProvider
+     * Starts asynchronous data listening. Multiple OpenChannel()-requests
+     * can be active for different channels at the same time.
+     *
+     * @since S60 5.0
+     * @param[in] aBuffer Pointer to a data buffer 
+     * @param[in] aCount Indicates data buffer size as a count of the data objects.
+     */
+    void StartChannelDataL( const TSensrvChannelId aChannelId, TUint8* aBuffer, TInt aCount );
+
+    /**
+     * From MSsyChannelDataProvider
+     * Stops asynchronous data listening. The data buffer is not valid after call of 
+     * this function.
+     *
+     * @since S60 5.0
+     */
+    void StopChannelDataL( const TSensrvChannelId aChannelId );
+
+    /**
+     * From MSsyChannelDataProvider
+     * Forces SSY to call BufferFilled() regardless of how many data items have been
+     * written to buffer. Even if no data items have yet been written, BufferFilled()
+     * must be called.
+     *
+     * @since S60 5.0
+     */
+    void ForceBufferFilledL( const TSensrvChannelId aChannelId );
+
+    /** 
+    * Returns a pointer to a specified interface - to allow future extension
+    * of this class without breaking binary compatibility
+    *
+    * @since S60 5.0
+    * @param aInterfaceUid Identifier of the interface to be retrieved
+    * @param aInterface A reference to a pointer that retrieves the specified interface.
+    */
+    void GetChannelDataProviderInterfaceL( TUid aInterfaceUid, TAny*& aInterface );
+
+    /**
+     * Channel data item received
+     *
+     * @param[in] aMessage Contains channel item
+     */
+    void ChannelDataReceivedL( TSsyReferenceMsg* aMessage );
+
+private:
+
+    /**
+     * C++ constructor.
+     * @param[in] aChannel Reference to channel this provider belongs to
+     */
+    CSsyReferenceChannelDataProvider( CSsyReferenceChannel& aChannel );
+
+    /**
+     * Symbian 2nd phase constructor.
+     */
+    void ConstructL();
+
+    /**
+     * Adds data into buffer. 
+     *
+     *@param[in] aData Data to add to buffer
+     *@param[in] aSize Size of data
+     */
+    void AddDataToBuffer( TUint8* aData, const TInt aSize );
+
+    /**
+     * Sends BufferFilled notification to MSsyCallback
+     */
+    void SendBufferFilled();
+
+private: // data
+
+    /**
+     * Reference to channel for which this provider belongs to
+     */
+    CSsyReferenceChannel& iChannel;
+
+    /**
+     * Pointer to data buffer in Sensor Server side
+     */
+    TUint8* iDataBuffer;
+
+    /**
+     * Maximum requested data items
+     */
+    TInt iMaxCount;
+
+    /**
+     * Number of items in buffer
+     */
+    TInt iDataCount;
+
+    };
+
+#endif // SSYREFERENCECHANNELDATAPROVIDER_H