// Copyright (c) 2008-2009 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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//+
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+
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/**+
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 @file+
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 @publishedPartner+
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*/+
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+
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#include <bluetooth/hci/hcishared.h>+
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#include "btfeatures.h"+
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+
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+
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enum TBTFeaturesPanic+
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	{+
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	ERangeTooLarge,+
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	};+
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+
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void FeaturesPanic(TBTFeaturesPanic aPanic)+
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	{+
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	_LIT(KPanicText, "BTFeatures");+
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	User::Panic(KPanicText, aPanic);+
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	}+
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+
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void Panic(THCISharePanic aPanic)+
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// Panic due to stack bug.+
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	{+
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	User::Panic(KHCISharedPanicName, aPanic);+
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	}+
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+
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/** +
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Constructor+
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Start with no requests to update the required configuration.+
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*/+
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+
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EXPORT_C TBTFeatures::TBTFeatures()+
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	{+
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	Init(0);+
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	}+
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+
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/** +
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Constructor+
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Start with request to update the required configuration+
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+
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@param aFeatures the required bluetooth features+
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*/+
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+
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EXPORT_C TBTFeatures::TBTFeatures(TUint64 aFeatures)+
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	{+
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	Init(aFeatures);+
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	}+
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+
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+
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void TBTFeatures::Init(TUint64 aFeatures)+
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	{+
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	const TInt KMaxBit = 7;+
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	iFeatures.SetMax();+
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	for (TInt pos = 0; pos < iFeatures.MaxSize(); pos++)+
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		{+
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		TUint8 byte = (pos <= KMaxBit) ? (aFeatures >> (pos * 8)) & 0xff : 0;+
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		iFeatures[pos] = byte;+
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		}+
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	}+
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+
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TUint32 TBTFeatures::Extract32BitsOffset(TInt aStart, TInt aEnd, TInt aOffset) const+
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	{+
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	return Extract32Bits(aStart, aEnd) << aOffset;+
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	}+
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+
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TUint32 TBTFeatures::Extract32Bits(TInt aStart, TInt aEnd) const+
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	{+
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	__ASSERT_DEBUG(aEnd - aStart <= 32, FeaturesPanic(ERangeTooLarge));+
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	TUint32 result =0;+
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	TInt outOffset = 0;+
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	for (TInt bit = aStart; bit <= aEnd; bit++)+
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		{+
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		result |= (operator[](bit) ? 1<<outOffset : 0);+
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		outOffset++;+
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		}+
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	+
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	return result;+
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	}+
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+
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+
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/**+
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Subscript operator.+
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+
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Return an individual bit from BT features+
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+
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@param aOffset Object to compare to this.+
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@return ETrue if the individual bit is 1, otherwise EFalse returned+
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*/+
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+
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EXPORT_C TBool TBTFeatures::operator[](TInt aOffset) const+
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	{+
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	TInt byte = aOffset / 8;+
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	TInt offset = aOffset - (byte * 8);+
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	return TBool(iFeatures[byte] & (1<<offset));+
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	}+
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+
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+
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/** +
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Return current link mode set  +
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+
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@return current link mode set +
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*/+
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+
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EXPORT_C TBTLinkModeSet TBTFeatures::LinkModes() const+
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	{+
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	return TBTLinkModeSet(Extract32Bits(ESupportedHoldModeBit, ESupportedParkModeBit));+
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	}+
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+
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+
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/** +
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Return current SCO packets type+
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+
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@return current SCO packets type +
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*/+
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EXPORT_C TBTSCOPackets TBTFeatures::SCOPackets() const+
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	{+
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	return TBTSCOPackets(Extract32Bits(ESupportedSCOLinkBit, ESupportedHV3PacketsBit) * EPacketsHV1);+
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	}+
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+
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/** +
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Return current synchronous packet types (SCO and eSCO on v1.2).+
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+
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@return current synchronous packet types (SCO and eSCO on v1.2).+
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*/+
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EXPORT_C TBTSyncPacketTypes TBTFeatures::SyncPackets() const+
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	{+
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	TBTSyncPacketTypes packets = Extract32Bits(ESupportedSCOLinkBit, ESupportedHV3PacketsBit) | Extract32BitsOffset(ESupportedExtendedSCOLinkBit, ESupportedEV5PacketsBit, 3);+
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	return packets;+
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	}+
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+
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/** +
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Return current supported mode+
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+
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@param aMode specified link modes to compare +
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@return ETrue if specified link modes are supported, otherwise EFalse returned+
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*/+
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EXPORT_C TBool TBTFeatures::IsModeSupported(TBTLinkMode aMode) const+
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	{+
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	return LinkModes() & aMode;+
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	}+
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+
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/** +
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Return whether role switch is supported+
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+
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@return ETrue if role switch is supported, otherwise EFalse returned+
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*/+
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EXPORT_C TBool TBTFeatures::IsRoleSwitchSupported() const+
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	{+
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	return operator[](ESupportedSwitchBit);+
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	}+
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+
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/** +
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Return whether encryption is supported+
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+
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@return ETrue if encryption is supported, otherwise EFalse returned+
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*/+
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EXPORT_C TBool TBTFeatures::IsEncryptionSupported() const+
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	{+
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	return operator[](ESupportedEncryptionBit);+
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	}+
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+
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/** +
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Return whether Extended Inquiry Response is supported+
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+
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@return ETrue if Extended Inquiry Response is supported, otherwise EFalse returned+
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*/+
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EXPORT_C TBool TBTFeatures::IsExtendedInquiryResponseSupported() const+
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	{+
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	return operator[](ESupportedExtendedInquiryResponseBit);+
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	}+
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+
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/** +
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Return whether Read signal strength indication with inquiry is supported+
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+
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@return ETrue if Read signal strength indication with inquiry is supported, otherwise EFalse returned+
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*/+
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EXPORT_C TBool TBTFeatures::IsRssiWithInquiryResultsSupported() const+
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	{+
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	return operator[](ESupportedRSSIWithInquiryResultsBit);+
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	}+
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+
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/** +
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Return whether Secure Simple Pairing is supported+
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+
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@return ETrue if Secure Simple Pairing is supported, otherwise EFalse returned+
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*/+
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EXPORT_C TBool TBTFeatures::IsSecureSimplePairingSupported() const+
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	{+
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	return operator[](ESupportedSecureSimplePairingBit);+
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	}+
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+
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/** +
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Return whether Encryption Pause and Resume is supported+
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+
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@return ETrue if Encryption Pause and Resume is supported, otherwise EFalse returned+
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*/+
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EXPORT_C TBool TBTFeatures::IsEncryptionPauseResumeSupported() const+
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	{+
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	return operator[](ESupportedEncryptionPauseResumeBit);+
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	}+
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+
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/** +
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Return whether SCO link is supported+
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+
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@return ETrue if SCO link is supported, otherwise EFalse returned+
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*/+
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EXPORT_C TBool TBTFeatures::IsSCOLinkSupported() const+
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	{+
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	return operator[](ESupportedSCOLinkBit);+
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	}+
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+
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/** +
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Return whether Extended SCO link is supported+
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+
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@return ETrue if Extended SCO link is supported, otherwise EFalse returned+
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*/+
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+
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EXPORT_C TBool TBTFeatures::IsExtendedSCOLinkSupported() const+
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	{+
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	return operator[](ESupportedExtendedSCOLinkBit);+
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	}+
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+
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+
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+
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/** +
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Indicate whether a low power mode is allowed+
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+
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@param aMode Bluetooth SIG specified values for indicating link modes+
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@return ETrue if the indicated low power modes are allowed, otherwise return EFalse+
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*/+
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+
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EXPORT_C TBool TLinkPolicy::IsModeAllowed(TBTLinkMode aMode) const+
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	{+
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	TBool allowed;+
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+
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	switch (aMode)+
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		{+
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		case EHoldMode:+
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		case ESniffMode:+
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		case EParkMode:+
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			allowed = iLowPowerModePolicy & aMode;+
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			break;+
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+
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		default:+
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			Panic(EBTUnknownLowPowerMode);+
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			allowed = EFalse;+
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		}+
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	+
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	return allowed;+
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	}+
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+
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/** +
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Indicate whether mode switch is allowed+
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+
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@return ETrue if mode switch is allowed, otherwise return EFalse+
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*/+
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+
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EXPORT_C TBool TLinkPolicy::IsSwitchAllowed() const+
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	{+
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	return iSwitchAllowed;+
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	}+
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+
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/** +
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Set permission or prohibition to a specific low power mode+
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+
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@param aMode Bluetooth SIG specified values for indicating link modes+
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@param aAllowed the permission or prohibition to a specific low power mode+
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*/+
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+
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EXPORT_C void TLinkPolicy::SetModeAllowed(TBTLinkMode aMode, TBool aAllowed)+
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	{+
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	switch (aMode)+
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		{+
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		case EHoldMode:+
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		case ESniffMode:+
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		case EParkMode:+
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			aAllowed ? iLowPowerModePolicy |= aMode : iLowPowerModePolicy &= ~aMode;+
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			break;+
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+
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		default:+
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			Panic(EBTUnknownLowPowerMode);+
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		}+
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	}+
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+
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/** +
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Set permission to low power modes+
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@param aModesAllowed the low power modes to be allowed or not+
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*/+
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+
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EXPORT_C void TLinkPolicy::SetModesAllowed(TUint8 aModesAllowed)+
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	{+
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	iLowPowerModePolicy = aModesAllowed;+
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	}+
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+
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/** +
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Set permission to low power modes switch+
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+
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@param aAllowed the low power modes switch to be allowed or not+
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*/+
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+
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EXPORT_C void TLinkPolicy::SetSwitchAllowed(TBool aAllowed)+
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	{+
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	iSwitchAllowed = aAllowed;+
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	}+
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+
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+
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/** +
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Return current low power mode policy +
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@return current low power mode policy+
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*/+
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+
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EXPORT_C TUint8 TLinkPolicy::LowPowerModePolicy() const+
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	{+
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	return iLowPowerModePolicy;+
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	}+
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+
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/** +
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Return current link policy  +
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+
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@return current link policy +
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*/+
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+
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EXPORT_C TUint8 TLinkPolicy::LinkPolicy() const+
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	{+
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	return static_cast<TUint8>(iSwitchAllowed + (iLowPowerModePolicy << 1));+
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	}+
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+
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+
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/** +
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Constructor+
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Start with default configuration+
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*/+
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EXPORT_C TBTBasebandLinkState::TBTBasebandLinkState()+
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 :	iLinkState(ELinkDown), +
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	iAuthenticated(EFalse), +
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	iEncrypted(EFalse),+
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	iMode(EActiveMode),+
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	iRole(ERoleUnknown),+
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	iPacketTypes(EAnyPacket),+
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	iMaxSlots(5)+
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	{+
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	}+
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+
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/** +
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Set the link state+
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+
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@param aState link state values +
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*/+
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EXPORT_C void TBTBasebandLinkState::SetLinkState(TLinkState aState)		+
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	{ +
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 	iLinkState = aState; +
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	}+
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+
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/** +
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Set the authentication state+
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@param aAuthenticated TBool value indicates whether authentication is allowed or not+
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*/+
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EXPORT_C void TBTBasebandLinkState::SetAuthenticated(TBool aAuthenticated)+
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	{ +
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 	iAuthenticated = aAuthenticated;+
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	}+
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+
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/** +
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Set the encryption state+
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@param aEncrypted TBool value indicates whether encryption is allowed or not+
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*/+
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EXPORT_C void TBTBasebandLinkState::SetEncrypted(TBool aEncrypted)+
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	{ +
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 	iEncrypted = aEncrypted;+
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	}+
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+
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/** +
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Set the link mode+
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@param aMode TBool value indicates the BT link mode+
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*/+
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EXPORT_C void TBTBasebandLinkState::SetLinkMode(TBTLinkMode aMode)			+
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	{ +
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 	iMode = aMode;+
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	}+
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+
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/** +
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Set the link role+
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@param aRole Bluetooth SIG specified values for specification of (piconet) role+
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*/+
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EXPORT_C void TBTBasebandLinkState::SetLinkRole(TBTBasebandRole aRole)		+
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	{ +
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 	iRole = aRole;+
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	}+
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+
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/** +
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Set the packet types+
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@param aPacketTypes Bluetooth SIG specified packet types+
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*/+
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EXPORT_C void TBTBasebandLinkState::SetPacketTypes(TUint16 aPacketTypes)	+
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	{ +
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 	iPacketTypes = aPacketTypes;+
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	}+
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+
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/** +
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Set the maximum types+
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@param aMaxSlots LMP maximum slot+
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*/+
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EXPORT_C void TBTBasebandLinkState::SetMaxSlots(TUint8 aMaxSlots)				+
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	{ +
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 	iMaxSlots = aMaxSlots;+
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	}+
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+
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/** +
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Return current baseband link state +
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@return current baseband link state  +
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*/+
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EXPORT_C TBTBasebandLinkState::TLinkState TBTBasebandLinkState::LinkState() const				+
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	{ +
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	return iLinkState;+
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	}+
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+
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/** +
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Return current authentication status +
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@return current authentication status  +
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*/+
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EXPORT_C TBool TBTBasebandLinkState::Authenticated() const					+
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	{ +
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	return iAuthenticated;+
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	}+
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+
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/** +
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Return current encryption status +
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@return current encryption status  +
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*/+
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EXPORT_C TBool TBTBasebandLinkState::Encrypted() const						+
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	{ +
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	return iEncrypted;+
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	}+
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+
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/** +
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Return current baseband link state +
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@return current baseband link state +
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*/+
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EXPORT_C TBTLinkMode TBTBasebandLinkState::LinkMode() const				+
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	{ +
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	return iMode;+
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	}+
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+
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/** +
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Return current baseband link role +
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@return current baseband link role +
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*/+
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EXPORT_C TBTBasebandRole TBTBasebandLinkState::LinkRole() const			+
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	{ +
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	return iRole;+
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	}+
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+
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/** +
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Return current baseband packet types +
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@return current baseband packet types +
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*/+
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EXPORT_C TUint16 TBTBasebandLinkState::PacketTypes() const					+
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	{ +
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	return iPacketTypes;+
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	}+
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+
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/** +
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Return current baseband max slots +
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@return current baseband max slots +
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*/+
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EXPORT_C TUint8 TBTBasebandLinkState::MaxSlots() const						+
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	{ +
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	return iMaxSlots;+
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	}+
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