basebandabstraction/basebandchanneladaptor/Inc/bca2.h
branchopencode
changeset 24 6638e7f4bd8f
parent 0 3553901f7fa8
--- a/basebandabstraction/basebandchanneladaptor/Inc/bca2.h	Mon May 03 13:37:20 2010 +0300
+++ b/basebandabstraction/basebandchanneladaptor/Inc/bca2.h	Thu May 06 15:10:38 2010 +0100
@@ -1,328 +1,328 @@
-
-/**
-* Copyright (c) 2005-2009 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:
-* Baseband Channel Adaptor(BCA) APIs.
-* This file contains all the APIs required to implement a BCA interface for Symbian OS.
-* 
-*
-*/
-
-
-
-/**
- @file
- @publishedPartner
- @prototype
- @released
-*/
-#ifndef BCA2_H
-#define BCA2_H
-
-/** This namespace includes the BCA component names.*/
-namespace BasebandChannelAdaptation2
-{
-/**
- * The class implemented by an upper component to accept control signals from the lower component
-
- * @publishedPartner
- * @prototype
- */
-class MUpperControl
-	{
-public:
-	/**
-	* Indicates to the layer above (link layer) that the Bca is ready to start 
-	* receiving packets from the upper layer (either after MBca start 
-	* completes or following congestion)
-	
-	* @param none
-	* @return none.
-	*/
-	virtual void StartSending()=0;
-	
-	/**
-	* Any fatal error which occurs during the send/receive session is reported 
-	* to the client by a call to this function. Fatal errors are errors which can’t 
-	* be recovered from (e.g.:  connection down) in which case MBca has become 
-	* defunct and can no longer be used to send and receive data
-	
-	* @param aErr TThe fatal error code from the session failures propagated 
-	* to the upper layer of the communications stack . Non fatal errors keep 
-	* the MBca2 functional which in the context of MBca2 implementation may 
-	* include KErrNoMemory, KErrCommsParity, KErrCommsOverrun, KErrCommsFrame. 
-	* @return none.
-	*/
-	virtual void Error(TInt aErr)=0;
-
-	};
-	
-/**
- * The Class implemented by an upper component to accept inbound data travelling 
- * upwards from the lower component
-
- * @publishedPartner
- * @prototype
- */ 	
-class MUpperDataReceiver
-	{
-public:
-	/**
-	* This function is called whenever data has been received by MBca which 
-	* should be processed by its client. The implementer takes ownership of the 
-	* buffer and is responsible for its deletion.
-	
-	* @param aCommsBufChain - The list of comms buffers containing data to be processed. 
-         * Destination keeps the custody of the buffer.
-	* @return none.
-	*/
-	virtual void Process(RCommsBufChain& aCommsBufChain)=0;
-	};
-
-/**
- * The interface implemented by the lower component to accept data from the upper component
-
- * @publishedPartner
- * @prototype
- */
- 	
-class MLowerDataSender
-	{
-	public:
-	enum TSendResult
-		{
-			// data accepted, send no more until MUpperControl::StartSending() is called
-			ESendBlocked,
-			// data accepted, can send more.
-			ESendAccepted
-		};
-	/**
-	* Sends the specified buffer data down to the base-band. The implementer takes 
-	* ownership of the buffer and is responsible for its deletion.
-	
-	* @param aCommsBufChain the comms buffer list to be sent.The buffer ownership is passed 
-	* to the BCA
-	* @return TTSendResult either ESendBlocked or SendAccepted. When the Bca 
-	* is congested and cannot send any data beyond the current packet (which is 
-	* always accepted), the implementation returns ESendBlocked. If BCA is not
-	* congested then ESendAccepted is returned to continue sending. When congestion 
-	* passes, the Bca calls StartSending on the upper layer to resume sending. The
-	* implementation is recommended to panic any attempts to call Send during congestion 
-	*/
-	virtual	TSendResult Send(RCommsBufChain& aCommsBufChain)=0;
-	};
-
-/**
- * The interface implemented by the lower component to accept control signals from the upper component
- 
- * @publishedPartner
- * @prototype
- */ 
-class MBca2
-	{
-public:
-	 struct TBcaParams 
-		{
-		RCommsBufPond iCommsBufPond;	// Pond to be used by BCA implementation for creating, using pools and buffers
-		const TDesC& iChannelId;				// port number or channel which BCA uses to communicate with its lower layers 
-		TBcaParams(RCommsBufPond aCommsBufPond,const TDesC& aChannelId)
-		: iCommsBufPond(aCommsBufPond),
-		iChannelId(aChannelId){}
-	 	};
-
-		
-	/**
-	* Opens the BCA instance and commences a BCA session (::Close() terminates the session). 
-	
-	* @param aControl reference to a MUpperControl implementation, which will 
-	* serve as the call-back interface for incoming control calls
-	* @param aData - reference to a MUpperDataReceiver implementation, which
-	* will serve as the call-back interface for incoming data
-	* @param aBcaParams A reference to the BCA start up params
-	* @return KErrNone if successful, system-wide error code otherwise. All 
-	* other error codes reported are fatal denoting that MBca interface has 
-	* failed to open and MBca is not good for transferring data
-	*/
-	virtual TInt Open(MUpperControl& aControl, 
-					MUpperDataReceiver& aData, 
-					const TBcaParams& aBcaParams)=0;
-	
-	/**
-	 * The API starts the baseband connection asynchronously. The Start () request 
-	 * API’s successful completion is acknowledged with MUpperControl::StartSending(). 
-	 * The request failure is acknowledged with MUpperControl::Error(). Client should 
-	 * take care of scenarios when MUpperControl::StartSending() gets very delayed 
-	 * or not called at all
- 	
-	* @param none
-	* @return none
-	*/
-	virtual void Start()=0;
-	
-	/**
-	 * Returns a reference to the MLowerDataSender, This reference is used by 
-	 * upper components to send packets to the lower components. This API must be 
-	 * called only after Start() completes, otherwise the implementation should panic.
- 	
-	* @param none
-	* @return reference to the MLowerDataSender. 
-	*/
-	virtual MLowerDataSender& GetSender()=0;
-	
-	/**
-	* Synchronously closes the BCA immediately. Informs the BCA is no longer 
-	* required by the client and can release its resources. Close cancels all 
-	* pending asynchronous operations which can only be ::Start() or ::Control() .
-	* To use the BCA instance it needs to be re-opened. Close operation must not fail.
-	
-	* @param none
-	* @return none.
-	*/
-	virtual void Close()=0;
-	
-	/**
-	* Release/deletes the BCA instance. Derived classes will typically implement 
-	* this as ‘delete this’.
-	
-	* @param none
-	* @return none.
-	*/
-	virtual void Release()=0;
-	
-	enum TBlockOption
-		{
-			//stop sending [block] data on interface
-			EBlockFlow, 
-			// start sending [unblock] data on interface
-			EUnblockFlow
-		};
-	/**
-	* Either blocks or unblocks the pushing of received data to the upper layers, 
-	* depending on TBlockOption. If the upper layers can’t process any more
-	* data to stop receiving packets this API is called with EBlockFlow. 
-	* Later after the congestion eases, to start receiving packets again call 
-	* this API with EUnblockFlow
-	
-	* @param aOption either block or unblock receive flow
-	* @return none.
-	*/
-	virtual void SetFlowControl(TBlockOption aOption)=0;
-
-	/**
-	* The BCA control function to get or set the options of the BCA in an 
-	* asynchronous manner.
-	
-	* @param aStatus  asynchronous completion status, KErrNone if successful, 
-         * system-wide error code otherwise
-	* @param aOptLevel option level to be used KBcaOptLevelGeneric 
-	* or KBcaOptLevelExtSerial
-	* @param aOptName option name to be used.
-	* @param aOpt an optional parameter,holds the option value on return or the
-	* option value to be set.
-	* @return none.
-	*/
-	virtual void Control(TRequestStatus& aStatus,
-							TUint aOptLevel,
-							TUint aOptName,
-							TDes8& aOpt)=0;
-
-	/**
-	* Cancels the Control request in a synchronous way.
-	
-	* @param none
-	* @return none.
-	*/
-	virtual void CancelControl()=0;
-	};
-
-/**
-* Control option level.
-*/
-const TUint KBcaOptLevelGeneric 		= 0x0194;
-const TUint KBcaOptLevelExtSerial 		= 0x0195;
-
-/**
-* C32 BCA capability
-*/
-const TUint KBcaCapSerial			= 0x01; //Serial port capability supported
-
-/**
-* Generic Control option name
-*/
-const TUint KBCAMru	                = 0x12;
-const TUint KBCAMtu	                = 0x13;
-const TUint KBCASpeedMetric	        = 0x14;
-const TUint KBCACaps	            = 0x15;
-const TUint KBCASetIapId	        = 0x16;
-const TUint KBCASetBcaStack	        = 0x1e;
-const TUint KVersionNumber	        = 0x1c;
-/** 
-Purges the buffers */
-const TUint KBCAResetBuffers        = 0x1f;
-
-/**
-* Serial Control option name
-*/
-const TUint KSerialCaps	            = 0x17;
-const TUint KSerialConfig	        = 0x18;
-const TUint KSerialSetConfig	    = 0x1a;
-const TUint KSerialPortName	        = 0x19;
-const TUint KSerialSetCsyName	    = 0x1b;
-const TUint KSerialSetCommRole	    = 0x1d;
-
-/**
-Set the size of receive & transmit buffers.
-Provided for compatibility with C32 RComm */
-const TUint KSerialSetTxRxBufferSize  = 0x2a;
-
-/** Retrieves the size of the receive & transmit buffers */
-const TUint KSerialTxRxBufferSize     = 0x2b;
-
-/** Set and/or clear signal lines */
-const TUint KSerialSetControlLines	  = 0x2c;
-
-struct TSerialSetControlLines {
-/**
-Structure associated with KSerialSetSignals control.
-Indicates which control lines to set/clear. 
-*/
-	TUint	iSetMask;
-	TUint	iClearMask;
-};
-
-//
-// Bitmasks specifying which buffer to reset. Used with KBCaResetBuffers
-//
-
-/** Reset Rx buffer only */
-const TUint KResetRxBuf = 0x01;
-
-/** Reset Tx buffer only */
-const TUint KResetTxBuf = 0x02;
-
-
-/** Monitor EIA-232 control lines and take action specified. */
-const TUint KSerialMonitorControlLines = 0x30;
-
-/** Turn control line monitoring off - do not fail on line change */
-const TUint KMonitorOff = 0x0;
-
-/** Fail when BCA-specific lines go from high to low. 
-This is the "Default" option, where the BCA itself selects what lines to monitor 
-This mask must not be specified in conjunction with other masks, as the BCA will monitor
-& fail on its specific lines ONLY. The other lines will be ignored.*/
-const TUint KFailBcaSpecificOnly = 0xFFFFFFFF; 
-}
-
-#endif // BCA2_H
+
+/**
+* Copyright (c) 2005-2009 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:
+* Baseband Channel Adaptor(BCA) APIs.
+* This file contains all the APIs required to implement a BCA interface for Symbian OS.
+* 
+*
+*/
+
+
+
+/**
+ @file
+ @publishedPartner
+ @prototype
+ @released
+*/
+#ifndef BCA2_H
+#define BCA2_H
+
+/** This namespace includes the BCA component names.*/
+namespace BasebandChannelAdaptation2
+{
+/**
+ * The class implemented by an upper component to accept control signals from the lower component
+
+ * @publishedPartner
+ * @prototype
+ */
+class MUpperControl
+	{
+public:
+	/**
+	* Indicates to the layer above (link layer) that the Bca is ready to start 
+	* receiving packets from the upper layer (either after MBca start 
+	* completes or following congestion)
+	
+	* @param none
+	* @return none.
+	*/
+	virtual void StartSending()=0;
+	
+	/**
+	* Any fatal error which occurs during the send/receive session is reported 
+	* to the client by a call to this function. Fatal errors are errors which can’t 
+	* be recovered from (e.g.:  connection down) in which case MBca has become 
+	* defunct and can no longer be used to send and receive data
+	
+	* @param aErr TThe fatal error code from the session failures propagated 
+	* to the upper layer of the communications stack . Non fatal errors keep 
+	* the MBca2 functional which in the context of MBca2 implementation may 
+	* include KErrNoMemory, KErrCommsParity, KErrCommsOverrun, KErrCommsFrame. 
+	* @return none.
+	*/
+	virtual void Error(TInt aErr)=0;
+
+	};
+	
+/**
+ * The Class implemented by an upper component to accept inbound data travelling 
+ * upwards from the lower component
+
+ * @publishedPartner
+ * @prototype
+ */ 	
+class MUpperDataReceiver
+	{
+public:
+	/**
+	* This function is called whenever data has been received by MBca which 
+	* should be processed by its client. The implementer takes ownership of the 
+	* buffer and is responsible for its deletion.
+	
+	* @param aCommsBufChain - The list of comms buffers containing data to be processed. 
+         * Destination keeps the custody of the buffer.
+	* @return none.
+	*/
+	virtual void Process(RCommsBufChain& aCommsBufChain)=0;
+	};
+
+/**
+ * The interface implemented by the lower component to accept data from the upper component
+
+ * @publishedPartner
+ * @prototype
+ */
+ 	
+class MLowerDataSender
+	{
+	public:
+	enum TSendResult
+		{
+			// data accepted, send no more until MUpperControl::StartSending() is called
+			ESendBlocked,
+			// data accepted, can send more.
+			ESendAccepted
+		};
+	/**
+	* Sends the specified buffer data down to the base-band. The implementer takes 
+	* ownership of the buffer and is responsible for its deletion.
+	
+	* @param aCommsBufChain the comms buffer list to be sent.The buffer ownership is passed 
+	* to the BCA
+	* @return TTSendResult either ESendBlocked or SendAccepted. When the Bca 
+	* is congested and cannot send any data beyond the current packet (which is 
+	* always accepted), the implementation returns ESendBlocked. If BCA is not
+	* congested then ESendAccepted is returned to continue sending. When congestion 
+	* passes, the Bca calls StartSending on the upper layer to resume sending. The
+	* implementation is recommended to panic any attempts to call Send during congestion 
+	*/
+	virtual	TSendResult Send(RCommsBufChain& aCommsBufChain)=0;
+	};
+
+/**
+ * The interface implemented by the lower component to accept control signals from the upper component
+ 
+ * @publishedPartner
+ * @prototype
+ */ 
+class MBca2
+	{
+public:
+	 struct TBcaParams 
+		{
+		RCommsBufPond iCommsBufPond;	// Pond to be used by BCA implementation for creating, using pools and buffers
+		const TDesC& iChannelId;				// port number or channel which BCA uses to communicate with its lower layers 
+		TBcaParams(RCommsBufPond aCommsBufPond,const TDesC& aChannelId)
+		: iCommsBufPond(aCommsBufPond),
+		iChannelId(aChannelId){}
+	 	};
+
+		
+	/**
+	* Opens the BCA instance and commences a BCA session (::Close() terminates the session). 
+	
+	* @param aControl reference to a MUpperControl implementation, which will 
+	* serve as the call-back interface for incoming control calls
+	* @param aData - reference to a MUpperDataReceiver implementation, which
+	* will serve as the call-back interface for incoming data
+	* @param aBcaParams A reference to the BCA start up params
+	* @return KErrNone if successful, system-wide error code otherwise. All 
+	* other error codes reported are fatal denoting that MBca interface has 
+	* failed to open and MBca is not good for transferring data
+	*/
+	virtual TInt Open(MUpperControl& aControl, 
+					MUpperDataReceiver& aData, 
+					const TBcaParams& aBcaParams)=0;
+	
+	/**
+	 * The API starts the baseband connection asynchronously. The Start () request 
+	 * API’s successful completion is acknowledged with MUpperControl::StartSending(). 
+	 * The request failure is acknowledged with MUpperControl::Error(). Client should 
+	 * take care of scenarios when MUpperControl::StartSending() gets very delayed 
+	 * or not called at all
+ 	
+	* @param none
+	* @return none
+	*/
+	virtual void Start()=0;
+	
+	/**
+	 * Returns a reference to the MLowerDataSender, This reference is used by 
+	 * upper components to send packets to the lower components. This API must be 
+	 * called only after Start() completes, otherwise the implementation should panic.
+ 	
+	* @param none
+	* @return reference to the MLowerDataSender. 
+	*/
+	virtual MLowerDataSender& GetSender()=0;
+	
+	/**
+	* Synchronously closes the BCA immediately. Informs the BCA is no longer 
+	* required by the client and can release its resources. Close cancels all 
+	* pending asynchronous operations which can only be ::Start() or ::Control() .
+	* To use the BCA instance it needs to be re-opened. Close operation must not fail.
+	
+	* @param none
+	* @return none.
+	*/
+	virtual void Close()=0;
+	
+	/**
+	* Release/deletes the BCA instance. Derived classes will typically implement 
+	* this as ‘delete this’.
+	
+	* @param none
+	* @return none.
+	*/
+	virtual void Release()=0;
+	
+	enum TBlockOption
+		{
+			//stop sending [block] data on interface
+			EBlockFlow, 
+			// start sending [unblock] data on interface
+			EUnblockFlow
+		};
+	/**
+	* Either blocks or unblocks the pushing of received data to the upper layers, 
+	* depending on TBlockOption. If the upper layers can’t process any more
+	* data to stop receiving packets this API is called with EBlockFlow. 
+	* Later after the congestion eases, to start receiving packets again call 
+	* this API with EUnblockFlow
+	
+	* @param aOption either block or unblock receive flow
+	* @return none.
+	*/
+	virtual void SetFlowControl(TBlockOption aOption)=0;
+
+	/**
+	* The BCA control function to get or set the options of the BCA in an 
+	* asynchronous manner.
+	
+	* @param aStatus  asynchronous completion status, KErrNone if successful, 
+         * system-wide error code otherwise
+	* @param aOptLevel option level to be used KBcaOptLevelGeneric 
+	* or KBcaOptLevelExtSerial
+	* @param aOptName option name to be used.
+	* @param aOpt an optional parameter,holds the option value on return or the
+	* option value to be set.
+	* @return none.
+	*/
+	virtual void Control(TRequestStatus& aStatus,
+							TUint aOptLevel,
+							TUint aOptName,
+							TDes8& aOpt)=0;
+
+	/**
+	* Cancels the Control request in a synchronous way.
+	
+	* @param none
+	* @return none.
+	*/
+	virtual void CancelControl()=0;
+	};
+
+/**
+* Control option level.
+*/
+const TUint KBcaOptLevelGeneric 		= 0x0194;
+const TUint KBcaOptLevelExtSerial 		= 0x0195;
+
+/**
+* C32 BCA capability
+*/
+const TUint KBcaCapSerial			= 0x01; //Serial port capability supported
+
+/**
+* Generic Control option name
+*/
+const TUint KBCAMru	                = 0x12;
+const TUint KBCAMtu	                = 0x13;
+const TUint KBCASpeedMetric	        = 0x14;
+const TUint KBCACaps	            = 0x15;
+const TUint KBCASetIapId	        = 0x16;
+const TUint KBCASetBcaStack	        = 0x1e;
+const TUint KVersionNumber	        = 0x1c;
+/** 
+Purges the buffers */
+const TUint KBCAResetBuffers        = 0x1f;
+
+/**
+* Serial Control option name
+*/
+const TUint KSerialCaps	            = 0x17;
+const TUint KSerialConfig	        = 0x18;
+const TUint KSerialSetConfig	    = 0x1a;
+const TUint KSerialPortName	        = 0x19;
+const TUint KSerialSetCsyName	    = 0x1b;
+const TUint KSerialSetCommRole	    = 0x1d;
+
+/**
+Set the size of receive & transmit buffers.
+Provided for compatibility with C32 RComm */
+const TUint KSerialSetTxRxBufferSize  = 0x2a;
+
+/** Retrieves the size of the receive & transmit buffers */
+const TUint KSerialTxRxBufferSize     = 0x2b;
+
+/** Set and/or clear signal lines */
+const TUint KSerialSetControlLines	  = 0x2c;
+
+struct TSerialSetControlLines {
+/**
+Structure associated with KSerialSetSignals control.
+Indicates which control lines to set/clear. 
+*/
+	TUint	iSetMask;
+	TUint	iClearMask;
+};
+
+//
+// Bitmasks specifying which buffer to reset. Used with KBCaResetBuffers
+//
+
+/** Reset Rx buffer only */
+const TUint KResetRxBuf = 0x01;
+
+/** Reset Tx buffer only */
+const TUint KResetTxBuf = 0x02;
+
+
+/** Monitor EIA-232 control lines and take action specified. */
+const TUint KSerialMonitorControlLines = 0x30;
+
+/** Turn control line monitoring off - do not fail on line change */
+const TUint KMonitorOff = 0x0;
+
+/** Fail when BCA-specific lines go from high to low. 
+This is the "Default" option, where the BCA itself selects what lines to monitor 
+This mask must not be specified in conjunction with other masks, as the BCA will monitor
+& fail on its specific lines ONLY. The other lines will be ignored.*/
+const TUint KFailBcaSpecificOnly = 0xFFFFFFFF; 
+}
+
+#endif // BCA2_H