1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 * 

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #include <kernel.h>             // For Kern

    20 #include "isilink.h"            // For DISILink

    21 #include "iscedefs.h"           // For EMuxISI...

    22 #include "mlinkmuxif.h"         // For MLinkMuxIf

    23 #include "isiroutertrace.h"     // For C_TRACE, ASSERT_RESET.. and fault codes

    24 #include "misilinkrouterif.h"   // For MISILinkRouterIf

    25 #include "isihelpers.h"         // For ISI_HEADER_OFFSET_MEDIA

    26 

    27 

    28 // Faults

    29 enum TISILinkFaults

    30     {

    31     EISILinkNullPtr = 0x01,

    32     EISILinkMemAllocFailed,

    33     EISILinkInitFailed,

    34     EISILinkInitFailed2,

    35     EISILinkRegisterFailed,

    36     EISILinkWrongMedia,

    37     EISILinkTrxPresenceSyncFailed,

    38     };

    39 

    40 

    41 MISIRouterLinkIf* MISIRouterLinkIf::CreateLinkF(

    42         MISILinkRouterIf* aRouter,

    43         const TUint8 aMediaId,

    44         const TUint8 aTrxId

    45         )

    46     {

    47     C_TRACE( ( _T( "MISIRouterLinkIf::CreateLinkF 0x%x %d %d>" ), aRouter, aMediaId, aTrxId ) );

    48     ASSERT_RESET_ALWAYS( aRouter, ( EISILinkNullPtr | EDISILinkTraceId << KClassIdentifierShift ) );

    49     DISILink* link = new DISILink( aRouter, aMediaId, aTrxId );

    50     ASSERT_RESET_ALWAYS( link, ( EISILinkMemAllocFailed | EDISILinkTraceId << KClassIdentifierShift ) );

    51     C_TRACE( ( _T( "MISIRouterLinkIf::CreateLinkF 0x%x %d %d created 0x%x<" ), aRouter, aMediaId, aTrxId, link ) );

    52     return link;

    53     }

    54 

    55 DISILink::DISILink(

    56         ) : iRouter( NULL ),

    57             iMux( NULL ),

    58             iTrxPresent( EFalse )

    59     {

    60     C_TRACE( ( _T( "DISILink::DISILink 0x%x>" ), this ) );

    61     iMediaId = 0; // TODO change to PN_MEDIA_NOT_USED when bridge supports this

    62     C_TRACE( ( _T( "DISILink::DISILink 0x%x<" ), this ) );

    63     }

    64 

    65 DISILink::DISILink(

    66         MISILinkRouterIf* aRouter,

    67         const TUint8 aMediaId,

    68         const TUint8 aTrxId

    69         ) : iRouter( aRouter ),

    70             iMediaId( aMediaId ),

    71             iTrxId( aTrxId )

    72     {

    73     C_TRACE( ( _T( "DISILink::DISILink 0x%x mediaid %d trxid %d>" ), this, aMediaId, aTrxId ) );

    74     // ISI Media

    75     iMux = MLinkMuxIf::Register( this, aTrxId, EMuxISI );

    76     ASSERT_RESET_ALWAYS( aRouter, ( EISILinkRegisterFailed | EDISILinkTraceId << KClassIdentifierShift ) );

    77     C_TRACE( ( _T( "DISILink::DISILink 0x%x mediaid %d trxid %d<" ), this, iMediaId, iTrxId ) );

    78     }

    79 

    80 DISILink::~DISILink()

    81     {

    82     C_TRACE( ( _T( "DISILink::~DISILink 0x%x>" ), this ) );

    83     iMux = NULL;

    84     iRouter = NULL;

    85     C_TRACE( ( _T( "DISILink::~DISILink 0x%x<" ), this ) );

    86     }

    87 

    88 // From MMuxLinkIf start

    89 void DISILink::Receive(

    90         TDes8& aMsg

    91         )

    92     {

    93     C_TRACE( ( _T( "DISILink::Receive 0x%x 0x%x>" ), this, &aMsg ) );

    94     ASSERT_RESET_ALWAYS( iMux, ( EISILinkInitFailed | EDISILinkTraceId << KClassIdentifierShift ) );

    95     ASSERT_RESET_ALWAYS( aMsg.Ptr()[ ISI_HEADER_OFFSET_MEDIA ] == iMediaId, ( EISILinkWrongMedia | aMsg.Ptr()[ 0 ] << KMediaIdShift | EDISILinkTraceId << KClassIdentifierShift ) );

    96     iRouter->RouteISIMessage( aMsg );

    97     C_TRACE( ( _T( "DISILink::Receive 0x%x 0x%x<" ), this, &aMsg ) );

    98     }

    99 

   100 /*

   101 * Called with FM held, no blocking no nesting of FMs and no allocation.

   102 */

   103 void DISILink::EnqueTrxPresenceChangedDfc(

   104         TBool aPresent

   105         )

   106     {

   107     // No traces allowed due to not allowed to block.

   108     ASSERT_RESET_ALWAYS( ( iTrxPresent != aPresent ), ( EISILinkTrxPresenceSyncFailed | EDISILinkTraceId << KClassIdentifierShift ) );

   109     iTrxPresent = aPresent;

   110     }

   111 // From MMuxLinkIf end

   112 

   113 // From MISIRouterLinkIf start

   114 void DISILink::Release(

   115         // None

   116         )

   117     {

   118     C_TRACE( ( _T( "DISILink::Release 0x%x>" ), this ) );

   119     delete this;

   120     C_TRACE( ( _T( "DISILink::Release 0x%x<" ), this ) );

   121     }

   122 

   123 TBool DISILink::Send(

   124         TDes8& aMsg

   125         )

   126     {

   127     C_TRACE( ( _T( "DISILink::Send 0x%x 0x%x>" ), this, &aMsg  ) );

   128     ASSERT_RESET_ALWAYS( iMux, ( EISILinkInitFailed2 | EDISILinkTraceId << KClassIdentifierShift ) );

   129     if( iTrxPresent )

   130         {

   131         TUint8* msgPtr = const_cast<TUint8*>( aMsg.Ptr() );

   132         msgPtr[ ISI_HEADER_OFFSET_MEDIA ] = iMediaId;

   133         // Send with default prio.

   134         iMux->Send( aMsg, EMuxISI );

   135         C_TRACE( ( _T( "DISILink::Send ok 0x%x %d 0x%x<" ), this, iTrxPresent, &aMsg) );

   136         return ETrue;

   137         }

   138     C_TRACE( ( _T( "DISILink::Send failed 0x%x %d 0x%x<" ), this, iTrxPresent, &aMsg) );

   139     return EFalse;

   140     }

   141 // From MISIRouterLinkIf end