kerneltest/e32test/usbho/t_usbdi/src/Ep0Reader.cpp
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     1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of the License "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // 
       
    15 //
       
    16 
       
    17 #include "Ep0Reader.h"
       
    18 #include "testdebug.h"
       
    19 
       
    20 namespace NUnitTesting_USBDI
       
    21 	{
       
    22 	
       
    23 CDeviceEndpoint0* CDeviceEndpoint0::NewL(MRequestHandler& aRequestHandler)
       
    24 	{
       
    25 	CDeviceEndpoint0* self = new (ELeave) CDeviceEndpoint0();
       
    26 	CleanupStack::PushL(self);
       
    27 	self->ConstructL(aRequestHandler);
       
    28 	CleanupStack::Pop(self);
       
    29 	return self;
       
    30 	}
       
    31 	
       
    32 	
       
    33 CDeviceEndpoint0::CDeviceEndpoint0()
       
    34 	{
       
    35 	}	
       
    36 	
       
    37 	
       
    38 CDeviceEndpoint0::~CDeviceEndpoint0()
       
    39 	{
       
    40 	LOG_FUNC
       
    41 
       
    42 	// Destroy the reader/writer
       
    43 	delete iEndpoint0Writer; 
       
    44 	delete iEndpoint0Reader; 
       
    45 	
       
    46 	// Close channel to the driver
       
    47 	iClientDriver.Close();
       
    48 	}
       
    49 	
       
    50 	
       
    51 void CDeviceEndpoint0::ConstructL(MRequestHandler& aRequestHandler)
       
    52 	{
       
    53 	LOG_FUNC
       
    54 	TInt err(iClientDriver.Open(0));
       
    55 	if(err != KErrNone)
       
    56 		{
       
    57 		RDebug::Printf("<Error %d> Unable to open a channel to USB client driver",err);
       
    58 		User::Leave(err);
       
    59 		}
       
    60 	
       
    61 	// Create the reader of data on device endpoint 0
       
    62 	iEndpoint0Reader = new (ELeave) CControlEndpointReader(iClientDriver,aRequestHandler);
       
    63 	
       
    64 	// Create the writer of data on device endpoint 0
       
    65 	iEndpoint0Writer = new (ELeave) CEndpointWriter(iClientDriver,EEndpoint0);
       
    66 	}
       
    67 
       
    68 	
       
    69 TInt CDeviceEndpoint0::Start()
       
    70 	{
       
    71 	LOG_FUNC
       
    72 	
       
    73 	// Make this channel to the driver able to get device directed ep0 requests
       
    74 	TInt err(iClientDriver.SetDeviceControl());
       
    75 	
       
    76 	// Check operation success
       
    77 	if(err != KErrNone)
       
    78 		{
       
    79 		RDebug::Printf("<Error %d> Unable to obtain device control",err);
       
    80 		return err;
       
    81 		}
       
    82 		
       
    83 	// Start reading for requests from host
       
    84 	TRAP(err,iEndpoint0Reader->ReadRequestsL());
       
    85 	
       
    86 	return err;
       
    87 	}
       
    88 
       
    89 
       
    90 TInt CDeviceEndpoint0::Stop()
       
    91 	{
       
    92 	LOG_FUNC
       
    93 	// Cancel the data reader and writer
       
    94 	iEndpoint0Writer->Cancel();
       
    95 	iEndpoint0Reader->Cancel();
       
    96 	
       
    97 	// Give device control back
       
    98 	TInt err(iClientDriver.ReleaseDeviceControl());
       
    99 	if(err != KErrNone)
       
   100 		{
       
   101 		RDebug::Printf("<Error %d> Unable to release device control",err);
       
   102 		}
       
   103 	return err;
       
   104 	}
       
   105 
       
   106 
       
   107 void CDeviceEndpoint0::SendData(const TDesC8& aData)
       
   108 	{
       
   109 	LOG_FUNC
       
   110 	iEndpoint0Writer->Write(aData, ETrue);
       
   111 	}
       
   112 
       
   113 TInt CDeviceEndpoint0::SendDataSynchronous(const TDesC8& aData)
       
   114 	{
       
   115 	LOG_FUNC
       
   116 	return iEndpoint0Writer->WriteSynchronous(aData, ETrue);
       
   117 	}
       
   118 
       
   119 CControlEndpointReader& CDeviceEndpoint0::Reader()
       
   120 	{
       
   121 	return *iEndpoint0Reader;
       
   122 	}
       
   123 
       
   124 	}
       
   125