bluetooth/btstack/linkmgr/eSCOSAP.cpp
author hgs
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// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// Implements the eSCO SAP class
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// 
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//
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#include <bluetooth/logger.h>
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#include <bt_sock.h>
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#include <bluetooth/hci/hciframe.h>
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#include "SCOSAP.h"
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#include "physicallinksmanager.h"
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#include "physicallinks.h"
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#include "hcifacade.h"
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#include "linkutil.h"
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#include "linkmuxer.h"
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#ifdef __FLOG_ACTIVE
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_LIT8(KLogComponent, LOG_COMPONENT_LINKMGR);
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#endif
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// ----------------------------------------------------------------------------
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// eSCO link
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// ----------------------------------------------------------------------------
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CeSCOLink* CeSCOLink::NewLC(CPhysicalLinksManager& aConnectionMan, CPhysicalLink* aConnection)
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	{
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	CeSCOLink* s = new(ELeave) CeSCOLink(aConnectionMan, aConnection);
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	CleanupStack::PushL(s);
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	s->ConstructL();
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	return s;
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	}
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CeSCOLink* CeSCOLink::NewL(CPhysicalLinksManager& aLinksMan, CPhysicalLink* aPhysicalLink)
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	{
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	CeSCOLink* s = NewLC(aLinksMan, aPhysicalLink);
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	CleanupStack::Pop();
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	return s;
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	}
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CeSCOLink::CeSCOLink(CPhysicalLinksManager& aLinksMan, CPhysicalLink* aPhysicalLink)
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: CBTSynchronousLink(aLinksMan, aPhysicalLink, EeSCOLink)
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	{
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	LOG_FUNC
0
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	iUserPacketTypes = TBTSyncPackets::ESyncAnyESCOPacket;
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	}
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void CeSCOLink::ConstructL()
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	{
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	CBTSynchronousLink::ConstructL();
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	}
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CeSCOLink::~CeSCOLink()
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	{
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	LOG_FUNC
0
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	}
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TInt CeSCOLink::GetOption(TUint aLevel, TUint aName, TDes8& aOption) const
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	{
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	if (aLevel != KSolBtESCO)
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		{
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		return KErrNotSupported;
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		}
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	switch (aName)
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		{
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		case EeSCOExtOptions:
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			{
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			TBTeSCOLinkParams* options = reinterpret_cast<TBTeSCOLinkParams*>(const_cast<TUint8*>(aOption.Ptr()));
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			options->iBandwidth.iTransmit = iTransmitBandwidth;
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			options->iBandwidth.iReceive = iReceiveBandwidth;
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			options->iLatency = iMaxLatency;
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			options->iRetransmissionEffort = iRetransmissionEffort;
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			options->iCoding = iVoiceSettings;
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			return KErrNone;
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			}
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		default:
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			return KErrNotSupported;
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		}
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	}
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TInt CeSCOLink::SAPSetOption(TUint aLevel, TUint aName, const TDesC8& aOption)
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/**
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	Case ESyncSetUserPacketTypes:
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	Store the user specified pakcet types if at least one of the eSCO packet types is set
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	The packet types bitmask will be passed as a parameter of CPhysicalLink::Connect(const TBTSyncPackets aUserPacketTypes)
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	in DoActiveOpenL()
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*/
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	{
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	switch (aLevel)
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		{
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		case KSolBtSCO:
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			switch (aName)
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				{
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				case ESyncUserPacketTypes:
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					{
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					TBTSyncPacketTypes optPacketTypes = *reinterpret_cast<const TBTSyncPacketTypes*>(aOption.Ptr());
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					if (TBTSyncPackets::ESyncAnyESCOPacket & optPacketTypes) //make sure at least one packet type is supported
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						{
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   112
						iUserPacketTypes = static_cast<TBTSyncPacketTypes>(optPacketTypes & (TBTSyncPackets::ESyncAnyESCOPacket));//Just eSCO packet types are stored
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parents:
diff changeset
   113
						}
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parents:
diff changeset
   114
					else
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parents:
diff changeset
   115
						{
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parents:
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   116
						return KErrNotSupported;
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parents:
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   117
						}
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parents:
diff changeset
   118
					
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parents:
diff changeset
   119
					break;
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parents:
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   120
					}
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parents:
diff changeset
   121
				
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parents:
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   122
				default:
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   123
					return KErrNotSupported;
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   124
				}
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   125
			break;
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parents:
diff changeset
   126
			
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		case KSolBtESCO:
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			switch (aName)
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				{
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   130
				case EeSCOExtOptions:
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					{
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					TBTeSCOLinkParams options = *reinterpret_cast<const TBTeSCOLinkParams*>(aOption.Ptr());
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   133
					
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					iTransmitBandwidth	= Max(options.iBandwidth.iTransmit, KMinESCOBandwidth);
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					iReceiveBandwidth	= Max(options.iBandwidth.iReceive, KMinESCOBandwidth);
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					iMaxLatency 		= Max(options.iLatency, KMinESCOLatency);
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					iRetransmissionEffort = options.iRetransmissionEffort;
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					iVoiceSettings		= options.iCoding;
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parents:
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   139
					
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   140
					break;
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parents:
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   141
					}
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parents:
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   142
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   143
				default:
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   144
					return KErrNotSupported;
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parents:
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   145
				}
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parents:
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   146
			break;
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parents:
diff changeset
   147
			
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parents:
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   148
		default:
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parents:
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   149
			return KErrNotSupported;
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parents:
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   150
		}
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parents:
diff changeset
   151
	
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   152
	return KErrNone;
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parents:
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   153
	}
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parents:
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   154
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parents:
diff changeset
   155
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parents:
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   156
TUint CeSCOLink::DoWrite(const TDesC8& aData, TUint /*aOptions*/, TSockAddr* /*aAddr*/)
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parents:
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   157
/**
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parents:
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   158
	Actually do the write - has been checked for length
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parents:
diff changeset
   159
	In future could write data on a specific SCO "subchannel" if we do that sort of thing
29b1cd4cb562 Revision: 200951_001
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parents:
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   160
	between devices - possibly then use aAddr or aOptions
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parents:
diff changeset
   161
**/
29b1cd4cb562 Revision: 200951_001
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parents:
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   162
	{
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parents:
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   163
	TUint retVal = 0;
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parents:
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   164
	TInt err = KErrNone;
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parents:
diff changeset
   165
	
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parents:
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   166
#ifdef STACK_SCO_DATA
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parents:
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   167
	// Trim length of data if necessary
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parents:
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   168
	TPtrC8 data = aData.Left(CHctlSynchronousDataFrame::KHCTLMaxSynchronousDataSize);
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parents:
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   169
	if (iLinksMan.LinkManagerProtocol().LinkMuxer().CanWriteSCOData())
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parents:
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   170
		{
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parents:
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   171
		// for now just try to write - if it fails then it doesnt matter - its
29b1cd4cb562 Revision: 200951_001
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parents:
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   172
		// a lot more *s*ynchronous than sticking it in a queue ;-)
29b1cd4cb562 Revision: 200951_001
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parents:
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   173
		LOG(_L("CSCOLink: Can write SCO data..."));
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parents:
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   174
		delete iOutboundSCOFrame;
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parents:
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   175
		iOutboundSCOFrame = NULL;
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parents:
diff changeset
   176
		const CHCIFacade& facade = iLinksMan.HCIFacade(); 
29b1cd4cb562 Revision: 200951_001
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parents:
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   177
		TRAP(err, iOutboundSCOFrame = facade.NewSynchronousDataFrameL(static_cast<TUint8>(data.Length())));
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parents:
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   178
		if(iOutboundSCOFrame && err == KErrNone)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   179
			{
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   180
			// got the frame - so go and use it
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   181
			facade.FormatSCOData(*iOutboundSCOFrame, iHandle, data);
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parents:
diff changeset
   182
			if (facade.WriteSCOData(*iOutboundSCOFrame) == KErrNone)
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   183
				{
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   184
				retVal = data.Length(); // we sent this many bytes
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   185
				}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   186
			}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   187
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   188
	else
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
		{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   190
		LOG(_L("CSCOLink: ERROR Cannot write SCO data."));
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
		Socket()->Error(((err == KErrNone) ? KErrInUse : err), MSocketNotify::EErrorSend);
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   192
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   193
#else
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
	LOG(_L("CSCOLink: ERROR SCO data via stack not supported.")))
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
	Socket()->Error(KErrNotSupported, MSocketNotify::EErrorSend);
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   196
#endif
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   197
	return retVal;
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   198
	}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
void CeSCOLink::PacketTypeChange(THCIErrorCode aErr, THCIConnHandle aConnH, TUint16 aNewPacket)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   201
	{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
	iState->PacketTypeChange(*this, aErr, aConnH, aNewPacket);
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   203
	}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   204
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
TBool CeSCOLink::IsLinkProbablyPossible()
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
	{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   207
	TUint minBandwidth = MinBandwidth();
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   208
	if ((iTransmitBandwidth < minBandwidth) || (iReceiveBandwidth < minBandwidth))
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   209
		{
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   210
		return EFalse;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   212
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   213
	TUint maxBandwidth = MaxBandwidth();
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   214
	if ((iTransmitBandwidth != KESCOBandwidthDontCare) && (iTransmitBandwidth > maxBandwidth))
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   215
		{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   216
		return EFalse;
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   217
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   218
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   219
	if ((iReceiveBandwidth != KESCOBandwidthDontCare) && (iReceiveBandwidth > maxBandwidth))
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   220
		{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
		return EFalse;
29b1cd4cb562 Revision: 200951_001
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parents:
diff changeset
   222
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   223
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   224
	if (iMaxLatency < KMinESCOLatency)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   225
		{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   226
		return EFalse;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   227
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   228
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   229
	TBool airCodingOK = EFalse;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   230
	TBTFeatures airCodings = iLinksMan.LinkManagerProtocol().PacketsSupportedLocally();
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   231
	switch (iVoiceSettings & KAirCodingFormatBits)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   232
		{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   233
		case ECVSD:
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   234
			airCodingOK = airCodings[ESupportedCVSDBit];
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   235
			break;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   236
			
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   237
		case EuLawLog:
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   238
			airCodingOK = airCodings[ESupportedu_lawLogBit];
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   239
			break;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   240
		
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   241
		case EALawLog:
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   242
			airCodingOK = airCodings[ESupportedA_lawLogBit];
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   243
			break;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   244
		
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   245
		case ETransparentData:
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   246
			airCodingOK = airCodings[ESupportedTransparentSCODataBit];
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   247
			break;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   248
		
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   249
		default:
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   250
			break;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   251
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   252
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   253
	return airCodingOK;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   254
	}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   255
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   256
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   257
TUint CeSCOLink::MinBandwidth()
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   258
	{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   259
	TReal bandwidth = ((KMinESCOPacketSize *  KMilliSecondsFactor) / iMaxLatency);
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   260
	return static_cast<TUint>(bandwidth);
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   261
	}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   262
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   263
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   264
TUint CeSCOLink::MaxBandwidth()
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   265
	{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   266
	TInt maxPacketSize = 0;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   267
	TInt interval = 1;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   268
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   269
	if (iUserPacketTypes & TBTSyncPackets::ESyncPacketsEV5)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   270
		{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   271
		maxPacketSize = KMaxEV5Size;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   272
		interval = KEV5Slots + KEV3Slots;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   273
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   274
	else if (iUserPacketTypes & TBTSyncPackets::ESyncPacketsEV4)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   275
		{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   276
		maxPacketSize = KMaxEV4Size;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   277
		interval = KEV4Slots + KEV3Slots;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   278
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   279
	else if (iUserPacketTypes & TBTSyncPackets::ESyncPacketsEV3)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   280
		{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   281
		maxPacketSize = KMaxEV3Size;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   282
		interval = KEV3Slots + KEV3Slots;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   283
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   284
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   285
	// Simple, easy to read version...
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   286
	//TReal bandwidth = (maxPacketSize / (KBasebandSlotTime * tesco));
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   287
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   288
	// Faster, still correct but harder to understand...  Add 1 to force rounding up, just in case.
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   289
	TUint bandwidth = ((KBasebandSlotsPerSecond * maxPacketSize) / interval) + 1;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   290
	return bandwidth;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   291
	}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   292
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   293
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   294
TInt CeSCOLink::MakeConnection(CPhysicalLink* aPhysLink)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   295
	{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   296
	return aPhysLink->SynchronousConnect(iTransmitBandwidth, iReceiveBandwidth,
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   297
		iMaxLatency, iVoiceSettings,
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   298
		iRetransmissionEffort, iUserPacketTypes);
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   299
	}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   300
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   301
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   302
TDes8& CeSCOLink::InboundFrame()
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   303
	{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   304
	return iInboundSCOFrame;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   305
	}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   306
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   307
void CeSCOLink::SetExtOptions(TBTSyncConnectOpts aSyncOpts)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   308
	{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   309
	iVoiceSettings = aSyncOpts.iAirMode & KAirCodingFormatBits;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   310
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   311
	// Using nasty magic numbers as we have a naming clash...  Responses to a command
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   312
	// use a different numbering scheme to setup commands.
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   313
	const TInt KCVSDResponse = 2;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   314
	if (iVoiceSettings <= KCVSDResponse)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   315
		{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   316
		if (iVoiceSettings == KCVSDResponse)
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   317
			{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   318
			iVoiceSettings = ECVSD;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   319
			}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   320
		else
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   321
			{
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   322
			iVoiceSettings++;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   323
			}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   324
		}
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   325
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   326
	TInt interval = aSyncOpts.iTransmissionInterval;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   327
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   328
	TReal latency = interval * KBasebandSlotTime * KMilliSecondsFactor;
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   329
	iMaxLatency = static_cast<TInt16>(latency + 1);
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   330
	
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   331
	iTransmitBandwidth = static_cast<TUint>((KBasebandSlotsPerSecond * aSyncOpts.iTxPacketLength / interval) + 1);
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   332
	iReceiveBandwidth = static_cast<TUint>((KBasebandSlotsPerSecond * aSyncOpts.iRxPacketLength / interval) + 1);
29b1cd4cb562 Revision: 200951_001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   333
	iRetransmissionEffort = aSyncOpts.iRetransmissionWindow;
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	}
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   335
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TUint16 CeSCOLink::GetPacketMask() const
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	{
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	return iUserPacketTypes;
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	}
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void CeSCOLink::GetExtOptions(TBTeSCOLinkParams& aOptions) const
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	{
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	aOptions.iBandwidth.iTransmit = iTransmitBandwidth;
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	aOptions.iBandwidth.iReceive = iReceiveBandwidth;
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	aOptions.iLatency = iMaxLatency;
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	aOptions.iRetransmissionEffort = iRetransmissionEffort;
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	aOptions.iCoding = iVoiceSettings;
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	}