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/*
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* Copyright (c) 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 the License "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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#include <kernel.h> // For Kern
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#include "isirouter.h" // For DISIRouter
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#include "isiroutertrace.h" // For C_TRACE, ASSERT_RESET.. and fault codes
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#include "misirouterlinkif.h" // For MISIRouterLinkIf
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#include "isihelpers.h" // For GET_SENDER_DEV...
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#include "memapi.h" // For MemApi
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#include <trxdefs.h> // For ETrxTest...
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#include "isicltransceiver.h" // For DISICLTransceiver
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#define PN_MEDIA_TEST 0xBB //not real
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#define PN_DEV_MODEM 0x12
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#define PN_DEV_DUMMYIST 0x13
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#define PN_DEV_APE 0x14
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// Faults
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enum TISICLTransceiverFaults
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{
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EISICLTransceiverMemAllocFailure = 0x01,
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EISICLTransceiverMemAllocFailure1,
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EISICLTransceiverNotSupportedMedia,
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EISICLTransceiverOverTheLimits,
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EISICLTransceiverNULLPtr,
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EISICLTransceiverNotSupportedDevice,
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};
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DISICLTransceiver::DISICLTransceiver( DISIRouter* aPtr )
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: iRouter( aPtr )
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{
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C_TRACE( ( _T( "DISICLTransceiver::DISICLTransceiver>" ) ) );
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iLinksArray = new MISIRouterLinkIf*[ EISIAmountOfMedias ];
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ASSERT_RESET_ALWAYS( iLinksArray, ( EISICLTransceiverMemAllocFailure | EDISICLTransceiverTraceId << KClassIdentifierShift ) );
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// Initialize links
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for( TInt i( 0 ); i < EISIAmountOfMedias; i++ )
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{
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iLinksArray[ i ] = NULL;
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}
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//TODO add real media and trx when known
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iLinksArray[ EISIMediaTest ] = MISIRouterLinkIf::CreateLinkF( this, PN_MEDIA_TEST, ETrxTest );
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C_TRACE( ( _T( "DISICLTransceiver::DISICLTransceiver<" ) ) );
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}
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DISICLTransceiver::~DISICLTransceiver()
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{
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C_TRACE( ( _T( "DISICLTransceiver::~DISICLTransceiver>" ) ) );
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for( TUint8 i( 0 ); i < EISIAmountOfMedias; i++ )
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{
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MISIRouterLinkIf* tmp = iLinksArray[ i ];
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if( tmp )
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{
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tmp->Release();
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tmp = NULL;
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iLinksArray[ i ] = NULL;
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}
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}
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delete []iLinksArray;
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C_TRACE( ( _T( "DISICLTransceiver::~DISICLTransceiver<" ) ) );
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}
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void DISICLTransceiver::SendCommIsaEntityNotReachableResp( TDes8& aMessage )
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{
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C_TRACE( ( _T( "DISICLTransceiver::SendCommIsaEntityNotReachableResp 0x%x>" ), &aMessage ) );
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const TUint8* msgTmpPtr( aMessage.Ptr() );
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// To avoid COMM_ISA_ENTITY_NOT_REACHABLE_RESP loop
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if( msgTmpPtr[ ISI_HEADER_OFFSET_MESSAGEID ] != COMMON_MESSAGE &&
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msgTmpPtr[ ISI_HEADER_OFFSET_SUBMESSAGEID ] != COMM_ISA_ENTITY_NOT_REACHABLE_RESP )
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{
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// Make channel opening request followinfg COMM specification: 000.026
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// Length is sixteen bytes.
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TUint8 length( 16 );
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TDes8& tempPtr = MemApi::AllocBlock( ISI_HEADER_SIZE + SIZE_COMMON_MESSAGE_COMM_ISA_ENTITY_NOT_REACHABLE_RESP );
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ASSERT_RESET_ALWAYS( &tempPtr, ( EISICLTransceiverMemAllocFailure1 | EDISICLTransceiverTraceId << KClassIdentifierShift ) );
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ASSERT_RESET_ALWAYS( ISI_HEADER_SIZE + SIZE_COMMON_MESSAGE_COMM_ISA_ENTITY_NOT_REACHABLE_RESP > ISI_HEADER_OFFSET_MESSAGEID, ( EISICLTransceiverOverTheLimits | EDISICLTransceiverTraceId << KClassIdentifierShift ) );
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TUint8* ptr = const_cast<TUint8*>( tempPtr.Ptr() );
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// We start to append from transaction id.
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tempPtr.SetLength( ISI_HEADER_OFFSET_TRANSID );
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// Get the header until messageid from prev. message.
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// Just turn receiver and sender device and object vice versa.
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ptr[ ISI_HEADER_OFFSET_MEDIA ] = msgTmpPtr[ ISI_HEADER_OFFSET_MEDIA ];
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SET_RECEIVER_DEV( ptr, GET_SENDER_DEV( aMessage ) );
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SET_SENDER_DEV ( ptr, GET_RECEIVER_DEV( aMessage ) );
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ptr[ ISI_HEADER_OFFSET_RESOURCEID ] = msgTmpPtr[ ISI_HEADER_OFFSET_RESOURCEID ];
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SET_LENGTH( ptr, length - PN_HEADER_SIZE );
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SET_RECEIVER_OBJ( ptr, GET_SENDER_OBJ( aMessage ) );
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SET_SENDER_OBJ( ptr, GET_RECEIVER_OBJ( aMessage ) );
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// Transactionid. Set to 0x01 since this is the first.
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tempPtr.Append( msgTmpPtr[ ISI_HEADER_OFFSET_TRANSID ] );
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// Message ID
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tempPtr.Append( ISI_HEADER_OFFSET_MESSAGEID );
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// Sub message ID.
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tempPtr.Append( COMM_ISA_ENTITY_NOT_REACHABLE_RESP );
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// Not Delivered Message from original req.
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tempPtr.Append( msgTmpPtr[ ISI_HEADER_OFFSET_MESSAGEID ] );
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// Status - COMM_ISA_ENTITY_NOT_AVAILABLE
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tempPtr.Append( 0x00 );
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// Filler
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tempPtr.Append( 0x00 );
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// Filler
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tempPtr.Append( 0x00 );
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// Filler
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tempPtr.Append( 0x00 );
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RouteISIMessage( tempPtr );
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}
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else
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{
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C_TRACE( ( _T( "DISICLTransceiver Not sending another CommIsaEntityNotReachableResp" ) ) );
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}
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C_TRACE( ( _T( "DISICLTransceiver::SendCommIsaEntityNotReachableResp 0x%x<" ), &aMessage ) );
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}
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void DISICLTransceiver::RouteISIMessage( TDes8& aMessage )
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{
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C_TRACE( ( _T( "DISICLTransceiver::RouteISIMessage 0x%x>" ), &aMessage ) );
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TInt error( ValidateISIMessage( aMessage ) ); //TODO what to do with error?
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TBool sendOk( EFalse );
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TUint8* messageBlockPtr( const_cast<TUint8*>( aMessage.Ptr() ) );
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switch( messageBlockPtr[ ISI_HEADER_OFFSET_RECEIVERDEVICE ] )
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{
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case PN_DEV_APE:
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{
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C_TRACE( ( _T( "DISIRouter msg to PN_DEV_APE" ) ) );
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if( messageBlockPtr[ ISI_HEADER_OFFSET_RECEIVEROBJECT ] == PN_OBJ_ROUTING_REQ )
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{
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//route with resource and nameservice
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}
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else{
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sendOk = iRouter->Receive( aMessage, messageBlockPtr[ ISI_HEADER_OFFSET_RECEIVEROBJECT ] );
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C_TRACE( ( _T( "DISIRouter router sendOk %d" ), sendOk ) );
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}
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break;
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}
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default:
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{
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C_TRACE( ( _T( "DISIRouter msg to other device" ) ) );
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TUint8 linkId = MapDeviceToMedia( messageBlockPtr[ ISI_HEADER_OFFSET_RECEIVERDEVICE ] );
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ASSERT_RESET_ALWAYS( linkId < EISIAmountOfMedias, ( EISICLTransceiverNotSupportedMedia | EDISICLTransceiverTraceId << KClassIdentifierShift ) );
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MISIRouterLinkIf* link = iLinksArray[ linkId ];
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ASSERT_RESET_ALWAYS( link, ( EISICLTransceiverNULLPtr | EDISICLTransceiverTraceId << KClassIdentifierShift ) );
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sendOk = link->Send( aMessage );
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C_TRACE( ( _T( "DISIRouter link sendOk %d" ), sendOk ) );
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break;
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}
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}
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if( !sendOk )
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{
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SendCommIsaEntityNotReachableResp( aMessage );
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MemApi::DeallocBlock( aMessage );
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}
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C_TRACE( ( _T( "DISICLTransceiver::RouteISIMessage 0x%x<" ), &aMessage ) );
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}
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// KErrBadDescriptor, if message length too small
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// KErrUnderFlow, if message length too big.
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// KErrCouldNotConnect, if receiver object is out of scope.
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TInt DISICLTransceiver::ValidateISIMessage(
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TDes8& aMessage
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)
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{
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C_TRACE( ( _T( "DISICLTransceiver::ValidateISIMessage 0x%x>" ), &aMessage ) );
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const TUint16 descLength( aMessage.Length() );
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TInt msgOk( KErrNone );
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msgOk = ( ISI_HEADER_OFFSET_MESSAGEID >= descLength ) ? KErrBadDescriptor : msgOk;
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TRACE_ASSERT_INFO( msgOk == KErrNone, msgOk );
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// Get ISI message length after known that the descriptor is big enough.
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const TUint8* msgPtr( aMessage.Ptr() );
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const TUint16 isiMsgLength( GET_LENGTH( msgPtr ) + PN_HEADER_SIZE );
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// If the descriptor length is less than ISI message length.
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msgOk = ( ( msgOk == KErrNone && isiMsgLength > descLength ) ? KErrUnderflow : msgOk );
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TRACE_ASSERT_INFO( msgOk == KErrNone, msgOk );
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// If the ISI message length is bigger that the largest supported.
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msgOk = ( ( msgOk == KErrNone && isiMsgLength > KMaxISIMsgSize ) ? KErrUnderflow : msgOk );
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TRACE_ASSERT_INFO( msgOk == KErrNone, msgOk );
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// If the ISI message length with PN_HEADER_SIZE is less or equal than ISI_HEADER_OFFSET_MESSAGEID.
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msgOk = ( ( msgOk == KErrNone && isiMsgLength <= ISI_HEADER_OFFSET_MESSAGEID ) ? KErrUnderflow : msgOk );
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TRACE_ASSERT_INFO( msgOk == KErrNone, msgOk );
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TRACE_ASSERT_INFO( msgOk == KErrNone, msgOk );
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TRACE_ASSERT_INFO( msgOk == KErrNone, isiMsgLength );
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TRACE_ASSERT_INFO( msgOk == KErrNone, descLength );
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TRACE_ASSERT_INFO( msgOk == KErrNone, msgOk );
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C_TRACE( ( _T( "DISICLTransceiver::ValidateISIMessage %d<" ), msgOk ) );
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return msgOk;
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}
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TUint8 DISICLTransceiver::MapDeviceToMedia(
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const TUint8 aDevice
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)
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{
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C_TRACE( ( _T( "DISICLTransceiver::MapDeviceToMedia aDevice %d>" ), aDevice ) );
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TUint8 media( KErrNone );
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switch( aDevice )
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{
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case PN_DEV_MODEM:
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{
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media = EISIMediaSharedMemory;
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break;
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}
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case PN_DEV_DUMMYIST:
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{
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media = EISIMediaTest;
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break;
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}
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// Not supported device
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default:
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{
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ASSERT_RESET_ALWAYS( 0, ( EISICLTransceiverNotSupportedDevice | EDISICLTransceiverTraceId << KClassIdentifierShift ) );
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break;
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}
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}
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C_TRACE( ( _T( "DISICLTransceiver::MapDeviceToMedia media %d<" ), media ) );
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return media;
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}
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