bluetoothengine/btmac/src/btmonobearer/bmbcmdlistener.cpp
changeset 1 6a1fe72036e3
parent 0 f63038272f30
child 51 625f43ae9362
equal deleted inserted replaced
0:f63038272f30 1:6a1fe72036e3
     1 /*
     1 /*
     2 * Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
     2 * Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies).
     3 * All rights reserved.
     3 * All rights reserved.
     4 * This component and the accompanying materials are made available
     4 * This component and the accompanying materials are made available
     5 * under the terms of "Eclipse Public License v1.0"
     5 * under the terms of "Eclipse Public License v1.0"
     6 * which accompanies this distribution, and is available
     6 * which accompanies this distribution, and is available
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
    31     }
    31     }
    32 
    32 
    33 CBmbCmdListener::~CBmbCmdListener()
    33 CBmbCmdListener::~CBmbCmdListener()
    34     {
    34     {
    35    	Cancel();
    35    	Cancel();
    36 	iProperty.Close();
    36    	iATCmdProperty.Close();
       
    37    	iATRespProperty.Close();
    37     }
    38     }
    38 
    39 
    39 // ---------------------------------------------------------------------------
    40 // ---------------------------------------------------------------------------
    40 // Send the response via PS, and starts listening the next command
    41 // Send the response via PS, and starts listening the next command
    41 // to be handled by this bearer.
    42 // to be handled by this bearer.
    42 // ---------------------------------------------------------------------------
    43 // ---------------------------------------------------------------------------
    43 //
    44 //
    44 void CBmbCmdListener::HandlingDataCompleted( const TDesC8& aResp )
    45 void CBmbCmdListener::HandlingDataCompleted( const TDesC8& aResp )
    45     {
    46     {
    46     // No better error handling than ignoring it.
    47     // No better error handling than ignoring it.
    47     (void) iProperty.Set( aResp );
    48     (void) iATRespProperty.Set( aResp );
    48     // Handling previous received command has completed, this object 
       
    49     // is ready for picking up the next one, regardless of
       
    50     // response sent successfully or not.
       
    51     Subscribe();
       
    52     TRACE_FUNC
    49     TRACE_FUNC
    53     }
    50     }
    54 
    51 
    55 CBmbCmdListener::CBmbCmdListener(CBmbPlugin& aParent) 
    52 CBmbCmdListener::CBmbCmdListener(CBmbPlugin& aParent) 
    56     : CActive(CActive::EPriorityStandard), iParent(aParent)
    53     : CActive(CActive::EPriorityStandard), iParent(aParent)
    59     }
    56     }
    60 
    57 
    61 void CBmbCmdListener::ConstructL()
    58 void CBmbCmdListener::ConstructL()
    62     {
    59     {
    63 	TRACE_FUNC
    60 	TRACE_FUNC
    64     LEAVE_IF_ERROR(iProperty.Attach(KPSUidBluetoothEnginePrivateCategory, KBTATCodec));
    61     LEAVE_IF_ERROR(iATCmdProperty.Attach(KPSUidBluetoothEnginePrivateCategory, KBTHfpATCommand));
       
    62 	LEAVE_IF_ERROR(iATRespProperty.Attach(KPSUidBluetoothEnginePrivateCategory, KBTHfpATResponse));
    65 	Subscribe();
    63 	Subscribe();
    66     }
    64     }
    67 
    65 
    68 void CBmbCmdListener::RunL()
    66 void CBmbCmdListener::RunL()
    69     {
    67     {
    70     TRACE_FUNC
    68     TRACE_FUNC
    71 	TInt err = iStatus.Int();
    69 	TInt err = iStatus.Int();
       
    70     Subscribe();
    72     // Error could be received from Subscribe when the PS
    71     // Error could be received from Subscribe when the PS
    73     // key is deleted due to powering BT off. In
    72     // key is deleted due to powering BT off. In
    74     // this case, we just re-subscribe.
    73     // this case, we just re-subscribe.
    75 	if(err == KErrNone)
    74 	if(err == KErrNone)
    76 		{
    75 		{
    77 	    iAtCmdBuf.Zero();
    76 	    iAtCmdBuf.Zero();
    78     	err = iProperty.Get(iAtCmdBuf);
    77     	err = iATCmdProperty.Get(iAtCmdBuf);
    79     	if ( !err && iAtCmdBuf.Length() > 0 )
    78     	if ( !err && iAtCmdBuf.Length() > 0 )
    80     	    {
    79     	    {
    81     	    // An AT command to be processed by iParent.
    80     	    // An AT command to be processed by iParent.
    82     	    // At command handling completion, iParent will call this object
    81     	    // At command handling completion, iParent will call this object
    83     	    // to send out response via HandlingDataCompleted()
    82     	    // to send out response via HandlingDataCompleted().
    84     	    // which will subscribe to PS key update after the response has been 
       
    85     	    // sent.
       
    86     	    iParent.DataFromRemote(iAtCmdBuf);
    83     	    iParent.DataFromRemote(iAtCmdBuf);
    87     	    }
       
    88     	else
       
    89     	    {
       
    90     	    // No valid command in the PS key, re-subscribe.
       
    91     	    err = KErrArgument;
       
    92     	    }
    84     	    }
    93 	    }
    85 	    }
    94 	TRACE_ERROR((_L8("listener Status %d"), err))
    86 	TRACE_ERROR((_L8("listener Status %d"), err))
    95 	// If err is 0, this object shall not immediately listen to new commands via
       
    96     // Subscribe() function while a command is under processing by iParent. 
       
    97     // Btmonocmdhandler ensures not to deliver
       
    98     // the next command to this bearer while a command is being processed.	
       
    99 	if(err != KErrNone)
       
   100         {
       
   101         Subscribe();
       
   102         }
       
   103     }
    87     }
   104 
    88 
   105 void CBmbCmdListener::DoCancel()
    89 void CBmbCmdListener::DoCancel()
   106     {
    90     {
   107     iProperty.Cancel();
    91     iATCmdProperty.Cancel();
   108     }
    92     }
   109 
    93 
   110 void CBmbCmdListener::Subscribe()
    94 void CBmbCmdListener::Subscribe()
   111     {
    95     {
   112     __ASSERT_ALWAYS( !IsActive(), Panic(EBmbPanicCmdListenerBadState) );
    96     __ASSERT_ALWAYS( !IsActive(), Panic(EBmbPanicCmdListenerBadState) );
   113     iProperty.Subscribe(iStatus);
    97     iATCmdProperty.Subscribe(iStatus);
   114     SetActive();
    98     SetActive();
   115     TRACE_FUNC
    99     TRACE_FUNC
   116     }
   100     }