os/kernelhwsrv/kerneltest/e32test/usbho/t_usbdi/src/TestDeviceBase.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     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 // @file testdevicebase.cpp
    15 // @internalComponent
    16 // 
    17 //
    18 
    19 #include "TestDeviceBase.h"
    20 #include "UsbDescriptorOffsets.h"
    21 #include "testdebug.h"
    22 #include <e32test.h>
    23 #include "softwareconnecttimer.h"
    24 #include "wakeuptimer.h"
    25 #include "controltransferrequests.h"
    26 #include "testinterfacebase.h"
    27 #include "PBASE-T_USBDI-0486.h"
    28 #include <e32property.h>
    29 
    30 namespace NUnitTesting_USBDI
    31 	{
    32 
    33 RUsbTestDevice::RUsbTestDevice()
    34 : 	iStateWatcher(NULL), 
    35 	iCurrentState(EUsbcDeviceStateUndefined), 
    36 	iDeviceEp0(NULL), 
    37 	iConnectTimer(NULL), iWakeupTimer(NULL),
    38 	iAuxBuffer(NULL)
    39 	{
    40 	}
    41 	
    42 RUsbTestDevice::RUsbTestDevice(CBaseTestCase* aTestCase)
    43 : 	iStateWatcher(NULL), 
    44 	iCurrentState(EUsbcDeviceStateUndefined), 
    45 	iDeviceEp0(NULL), 
    46 	iConnectTimer(NULL), iWakeupTimer(NULL),
    47 	iAuxBuffer(NULL)
    48 	{
    49 	LOG_FUNC	
    50 	iTestCase = aTestCase;
    51 	RDebug::Printf("iTestCase = %d", iTestCase);
    52 	}
    53 		
    54 void RUsbTestDevice::ResetState()
    55 	{
    56 	iCurrentState = EUsbcDeviceStateUndefined;
    57 	}
    58 
    59 RUsbTestDevice::~RUsbTestDevice()
    60 	{
    61 	LOG_FUNC
    62 	
    63 	}
    64 	
    65 void RUsbTestDevice::Close()
    66 	{
    67 	LOG_FUNC
    68 
    69 	delete iWakeupTimer;
    70 	delete iConnectTimer;
    71 	delete iDeviceEp0;
    72 	delete iStateWatcher;
    73 		
    74 	iInterfaces.ResetAndDestroy();
    75 
    76 	iClientDriver.Close(); 
    77 	
    78 	if(!iTestCase->IsHost()) // process only started in client rom
    79 		{
    80         // create a publish/subscribe key to allow usbhost_usbman to be killed
    81         // cleanly
    82         static const TUid KWordOfDeathCat = {0x01066600};
    83         static const TInt KWordOfDeathKey = 0x01066601;
    84         static _LIT_SECURITY_POLICY_PASS(KAllowAllPolicy);
    85         TInt r = RProperty::Define(KWordOfDeathCat, KWordOfDeathKey, RProperty::EInt,KAllowAllPolicy, KAllowAllPolicy, 0);
    86         if(r != KErrNone)
    87             {
    88             RDebug::Print(_L("Could not create the WordOfDeath P&S   (%d)"), r);
    89             }
    90 		RDebug::Printf("killing t_usbhost_usbman.exe");
    91         RProperty::Set(KWordOfDeathCat, KWordOfDeathKey, KErrAbort);   // Send the word of death
    92         User::After(1000000); //allow time for t_usbhost_usbman.exe to clean up
    93 		}
    94 	}
    95 
    96 
    97 void RUsbTestDevice::SubscribeToReports(TRequestStatus& aObserverStatus)
    98 	{
    99 	LOG_FUNC
   100 	
   101 	// Signal the request as pending
   102 	
   103 	iObserverStatus = &aObserverStatus;
   104 	*iObserverStatus = KRequestPending;
   105 	}
   106 
   107 
   108 void RUsbTestDevice::CancelSubscriptionToReports()
   109 	{
   110 	LOG_FUNC
   111 	
   112 	// Signal the request as cancelled
   113 	User::RequestComplete(iObserverStatus,KErrCancel);
   114 	}
   115 	
   116 		
   117 void RUsbTestDevice::OpenL()
   118 	{
   119 	LOG_FUNC	
   120 	TInt err = KErrNone;
   121 	
   122 	RDebug::Printf("starting t_usbhost_usbman.exe");
   123 	TInt r = iOtgUsbMan.Create(_L("t_usbhost_usbman.exe"), _L("client"));
   124 	gtest(r == KErrNone);
   125 	iOtgUsbMan.Resume();	
   126 	
   127 	User::After(1500000);
   128 	
   129 	// Open channel to driver
   130 	err = iClientDriver.Open(0);
   131 	if(err != KErrNone)
   132 		{
   133 		RDebug::Printf("<Error %d> Unable to open a channel to USB client driver",err);
   134 		User::Leave(err);
   135 		}
   136 	
   137 	// Hide bus from host while interfaces are being set up
   138 	err = iClientDriver.DeviceDisconnectFromHost();
   139 	if(err != KErrNone)
   140 		{
   141 		RDebug::Printf("<Error %d> unable to disconnect device from host",err);
   142 		User::Leave(err);
   143 		}
   144 	
   145 	// Create the client usb state watcher
   146 	iStateWatcher = CUsbClientStateWatcher::NewL(iClientDriver,*this);
   147 		
   148 	// Create the Ep0 reader
   149 	iDeviceEp0 = CDeviceEndpoint0::NewL(*this);
   150 		
   151 	// Create the timer for software connection/disconnection
   152 	iConnectTimer = CSoftwareConnectTimer::NewL(*this);
   153 	
   154 	// Create the timer for remote wakeup events
   155 	iWakeupTimer = CRemoteWakeupTimer::NewL(*this);
   156 	_LIT8(KYes, "yes");
   157 	_LIT8(KNo, "no");
   158 	User::LeaveIfError(iClientDriver.DeviceCaps(iDeviceCaps));
   159  	RDebug::Printf("------ USB device capabilities -------");
   160 	RDebug::Printf("Number of endpoints:                %d",iDeviceCaps().iTotalEndpoints);	
   161 	RDebug::Printf("Supports Software-Connect:          %S",iDeviceCaps().iConnect ? &KYes() : &KNo());
   162 	RDebug::Printf("Device is Self-Powered:             %S",iDeviceCaps().iSelfPowered ? &KYes() : &KNo());
   163 	RDebug::Printf("Supports Remote-Wakeup:             %S",iDeviceCaps().iRemoteWakeup ? &KYes() : &KNo());
   164 	RDebug::Printf("Supports High-speed:                %S",iDeviceCaps().iHighSpeed ? &KYes() : &KNo());
   165 	RDebug::Printf("Supports unpowered cable detection: %S",(iDeviceCaps().iFeatureWord1 & KUsbDevCapsFeatureWord1_CableDetectWithoutPower) ? &KYes() : &KNo());
   166 	RDebug::Printf("--------------------------------------");
   167 	
   168 	}
   169 
   170 
   171 TInt RUsbTestDevice::SetClassCode(TUint8 aClassCode,TUint8 aSubClassCode,TUint8 aDeviceProtocol)
   172 	{
   173 	LOG_FUNC
   174 
   175 	// Get Device descriptor
   176 	TBuf8<KUsbDescSize_Device> deviceDescriptor;
   177 	TInt err(iClientDriver.GetDeviceDescriptor(deviceDescriptor));
   178 	if(err != KErrNone)
   179 		{
   180 		RDebug::Printf("<Error %d> Unable to obtain device descriptor",err);
   181 		}
   182 	else
   183 		{
   184 		deviceDescriptor[KDevDescOffset_bDeviceClass] = aClassCode;
   185 		deviceDescriptor[KDevDescOffset_bDeviceSubClass] = aSubClassCode;
   186 		deviceDescriptor[KDevDescOffset_bDeviceProtocol] = aDeviceProtocol;	
   187 		
   188 		err = iClientDriver.SetDeviceDescriptor(deviceDescriptor);
   189 		if(err != KErrNone)
   190 			{
   191 			RDebug::Printf("<Error %d> Unable to set the device dsecriptor",err);
   192 			}
   193 		}
   194 	return err;
   195 	}
   196 
   197 
   198 TInt RUsbTestDevice::SetUsbSpecification(TUint16 aSpecification)
   199 	{
   200 	LOG_FUNC
   201 
   202 	// Get Device descriptor
   203 	TBuf8<KUsbDescSize_Device> deviceDescriptor;
   204 	TInt err(iClientDriver.GetDeviceDescriptor(deviceDescriptor));
   205 	if(err != KErrNone)
   206 		{
   207 		RDebug::Printf("<Error %d> Unable to obtain device descriptor",err);
   208 		}
   209 	else
   210 		{
   211 		// Set bcdUSB
   212 		TUint8* p = reinterpret_cast<TUint8*>(&aSpecification);
   213 		deviceDescriptor[KDevDescOffset_bcdUSB] = *p;
   214 		deviceDescriptor[KDevDescOffset_bcdUSB+1] = *(p+1);
   215 		
   216 		// Symbian currently supports only devices with one configuration by selecting the configurations
   217 		// that has the lowest power consumption
   218 		
   219 		deviceDescriptor[KDevDescOffset_bNumConfigurations] = 0x01;
   220 		
   221 		err = iClientDriver.SetDeviceDescriptor(deviceDescriptor);
   222 		if(err != KErrNone)
   223 			{
   224 			RDebug::Printf("<Error %d> Unable to set the device dsecriptor",err);
   225 			}
   226 		}
   227 	return err;
   228 	}
   229 
   230 
   231 TInt RUsbTestDevice::SetVendor(TUint16 aVendorId)
   232 	{
   233 	LOG_FUNC
   234 
   235 	// Get Device descriptor
   236 	TBuf8<KUsbDescSize_Device> deviceDescriptor;
   237 	TInt err(iClientDriver.GetDeviceDescriptor(deviceDescriptor));
   238 	if(err != KErrNone)
   239 		{
   240 		RDebug::Printf("<Error %d> Unable to obtain device descriptor",err);
   241 		}
   242 	else
   243 		{
   244 		// Set VID
   245 		TUint8* p = reinterpret_cast<TUint8*>(&aVendorId);
   246 		deviceDescriptor[KDevDescOffset_idVendor] = *p;
   247 		deviceDescriptor[KDevDescOffset_idVendor+1] = *(p+1);
   248 		
   249 		err = iClientDriver.SetDeviceDescriptor(deviceDescriptor);
   250 		if(err != KErrNone)
   251 			{
   252 			RDebug::Printf("<Error %d> Unable to set the device descriptor",err);
   253 			}
   254 		}
   255 	return err;
   256 	}
   257 
   258 
   259 TInt RUsbTestDevice::SetProduct(TUint16 aProductId,const TDesC16& aProductString,
   260 				const TDesC16& aManufacturerString,const TDesC16& aSerialNumberString)
   261 	{
   262 	LOG_FUNC
   263 
   264 	// Get Device descriptor
   265 	TBuf8<KUsbDescSize_Device> deviceDescriptor;
   266 	TInt err(iClientDriver.GetDeviceDescriptor(deviceDescriptor));
   267 	if(err != KErrNone)
   268 		{
   269 		RDebug::Printf("<Error %d> Unable to obtain device descriptor",err);
   270 		}
   271 	else
   272 		{
   273 		// Set PID
   274 		TUint8* p = reinterpret_cast<TUint8*>(&aProductId);
   275 		deviceDescriptor[KDevDescOffset_idProduct] = *p;
   276 		deviceDescriptor[KDevDescOffset_idProduct+1] = *(p+1);
   277 		
   278 		err = iClientDriver.SetDeviceDescriptor(deviceDescriptor);
   279 		if(err != KErrNone)
   280 			{
   281 			RDebug::Printf("<Error %d> Unable to set the device dsecriptor",err);
   282 			return err;
   283 			}
   284 		
   285 		RDebug::Printf("Product Identity set");
   286 	
   287 		// Product string
   288 		err = iClientDriver.SetProductStringDescriptor(aProductString);
   289 		if(err != KErrNone)
   290 			{
   291 			RDebug::Printf("<Error %d> Unable to set product string descriptor",err);
   292 			return err;
   293 			}
   294 
   295 		// Manufacturer string
   296 		err = iClientDriver.SetManufacturerStringDescriptor(aManufacturerString);
   297 		if(err != KErrNone)
   298 			{
   299 			RDebug::Printf("<Error %d> Unable to set the manufacturer string descriptor",err);
   300 			return err;
   301 			}
   302 	
   303 		// Serial number string
   304 		err = iClientDriver.SetSerialNumberStringDescriptor(aSerialNumberString);
   305 		if(err != KErrNone)
   306 			{
   307 			RDebug::Printf("<Error %d> Unable to set the serial number string descriptor",err);
   308 			return err;
   309 			}
   310 		}
   311 	return KErrNone;
   312 	}
   313 
   314 
   315 TInt RUsbTestDevice::SetConfigurationString(const TDesC16& aConfigString)
   316 	{
   317 	LOG_FUNC
   318 
   319 	TInt err(iClientDriver.SetConfigurationStringDescriptor(aConfigString));
   320 	if(err != KErrNone)
   321 		{
   322 		RDebug::Printf("<Error %d> Unable to set configuration string descriptor",err);
   323 		}
   324 	return err;
   325 	}
   326 
   327 
   328 void RUsbTestDevice::AddInterface(CInterfaceBase* aInterface)
   329 	{
   330 	LOG_FUNC
   331 		
   332 	// Add the interface to the device
   333 	TInt err = iInterfaces.Append(aInterface);
   334 	
   335 	if(err != KErrNone)
   336 		{
   337 		RDebug::Printf("<Error %d> Unable to add interface",err);
   338 		return ReportError(err);
   339 		}
   340 	}
   341 
   342 
   343 CInterfaceBase& RUsbTestDevice::Interface(TInt aIndex)
   344 	{
   345 	return *iInterfaces[aIndex];
   346 	}
   347 
   348 
   349 void RUsbTestDevice::SoftwareConnect()
   350 	{
   351 	LOG_FUNC
   352 	TInt err(iClientDriver.PowerUpUdc());
   353 	if((err != KErrNone) && (err != KErrNotReady))
   354 		{
   355 		RDebug::Printf("<Error %d> Power Up Udc",err);
   356 		ReportError(err);
   357 		}
   358 		
   359 	if(iDeviceCaps().iConnect) 
   360 		{
   361 		err = iClientDriver.DeviceConnectToHost();
   362 		if(err != KErrNone)
   363 			{
   364 			RDebug::Printf("<Error %d> Unable to connect to the host",err);
   365 			ReportError(err);
   366 			}
   367 		}
   368 	else
   369 		{
   370 		RDebug::Printf("Please connect device to Host");
   371 		}	
   372 	}   	
   373 	 
   374 void RUsbTestDevice::SoftwareDisconnect()
   375 	{
   376 	LOG_FUNC
   377 	
   378 	if(iDeviceCaps().iConnect) 
   379 		{
   380 		TInt err(iClientDriver.DeviceDisconnectFromHost());
   381 		if(err != KErrNone)
   382 			{
   383 			RDebug::Printf("<Error %d> Unable to disconnect from the host",err);
   384 			ReportError(err);
   385 			}
   386 		}
   387 	else
   388 		{
   389 		RDebug::Printf("Please disconnect device from Host");
   390 		}
   391 		
   392 	}       
   393 
   394 
   395 void RUsbTestDevice::RemoteWakeup()
   396 	{
   397 	LOG_FUNC
   398 	if(iDeviceCaps().iConnect) 
   399 		{
   400 		TInt err(iClientDriver.SignalRemoteWakeup());
   401 		if(err != KErrNone)
   402 			{
   403 			RDebug::Printf("<Error %d> Unable to perform a remote wakeup",err);
   404 			ReportError(err);
   405 			}
   406 		}
   407 	else
   408 		{
   409 		RDebug::Printf("remote wakeup not supported");
   410 		}
   411 	}
   412 
   413 
   414 TInt RUsbTestDevice::ProcessRequestL(TUint8 aRequest,TUint16 aValue,TUint16 aIndex,
   415 	TUint16 aDataReqLength,const TDesC8& aPayload)
   416 	{
   417 	LOG_FUNC
   418 	
   419 	if(aRequest == KVendorEmptyRequest)
   420 		{
   421 		// Handle an empty request (i.e. do nothing)
   422 		
   423 		AcknowledgeRequestReceived();
   424 		}
   425 	else if(aRequest == KVendorReconnectRequest)
   426 		{
   427 		// Handle a reconnect requests from the host
   428 		
   429 		AcknowledgeRequestReceived();
   430 		iConnectTimer->SoftwareReConnect(aValue);
   431 		}
   432 	else if(aRequest == KVendorDisconnectDeviceAThenConnectDeviceCRequest)
   433 		{
   434 		RDebug::Printf("**aRequest == KVendorDisconnectDeviceAThenConnectDeviceCRequest, this = 0x%08x", this);
   435 		// Handle a reconnect requests from the host		
   436 		AcknowledgeRequestReceived();			
   437 		
   438 		SoftwareDisconnect();	
   439 		User::After(1000000);
   440 		//	connect device C now	
   441 		CUT_PBASE_T_USBDI_0486* iTestCaseT_USBDI_0486 = reinterpret_cast<CUT_PBASE_T_USBDI_0486*>(iTestCase);
   442 		Close(); 		
   443 		
   444 		User::After(3000000);
   445 		iTestCaseT_USBDI_0486->TestDeviceC()->OpenL(KTestDeviceC_SN);		
   446 		// Connect the device to the host	
   447 		iTestCaseT_USBDI_0486->TestDeviceC()->SoftwareConnect();
   448 		return KErrAbort;
   449 		}
   450 	else if(aRequest == KVendorDisconnectDeviceCThenConnectDeviceARequest)
   451 		{
   452 		RDebug::Printf("**aRequest == KVendorDisconnectDeviceCThenConnectDeviceARequest, this = 0x%08x", this);
   453 		// Handle a reconnect requests from the host		
   454 		AcknowledgeRequestReceived();		
   455 		 
   456 		SoftwareDisconnect();	
   457 		User::After(1000000); 
   458 		 
   459 		//	connect device A now	
   460 		CUT_PBASE_T_USBDI_0486* iTestCaseT_USBDI_0486 = reinterpret_cast<CUT_PBASE_T_USBDI_0486*>(iTestCase);
   461 		
   462 		
   463 		Close();		
   464 		User::After(3000000); 		
   465 		iTestCaseT_USBDI_0486->Cancel();
   466 		iTestCaseT_USBDI_0486->HandleDeviceDConnection();
   467 		iTestCaseT_USBDI_0486->TestDeviceD()->OpenL(iTestCaseT_USBDI_0486->TestCaseId());	
   468 		
   469 		// Connect the device to the host	
   470 		iTestCaseT_USBDI_0486->TestDeviceD()->SoftwareConnect();	
   471 		return KErrAbort;
   472 		}		
   473 	else if(aRequest == KVendorTestCasePassed)
   474 		{ 
   475 		// Test case has completed successfully 
   476 		// so report to client test case that host is happy		
   477 		
   478 		AcknowledgeRequestReceived();
   479 		ReportError(KErrNone);
   480 		}
   481 	else if(aRequest == KVendorTestCaseFailed)
   482 		{
   483 		// The test case has failed, so report to client test case
   484 		// and display/log the error message
   485 		
   486 		AcknowledgeRequestReceived();
   487 		
   488 		HBufC16* msg = HBufC16::NewL(aPayload.Length());
   489 		msg->Des().Copy(aPayload);
   490 		RDebug::Printf("<Host> Test case failed: %S",msg);
   491 		delete msg;
   492 		msg = 0;
   493 		ReportError(-aValue);
   494 		}
   495 	else if(aRequest == KVendorRemoteWakeupRequest)
   496 		{
   497 		// Handle a remote wakeup request
   498 
   499 		AcknowledgeRequestReceived();
   500 		iWakeupTimer->WakeUp(aValue);
   501 		}
   502 	else if(aRequest == KVendorPutPayloadRequest)
   503 		{
   504 		// Handle a payload request from the host
   505 
   506 		AcknowledgeRequestReceived();
   507 		RDebug::Printf("Put payload");
   508 		if(aPayload.Compare(_L8("DEADBEEF")) != 0)
   509 			{
   510 			RDebug::Printf("<Error %d> Payload not as expected",KErrCorrupt);
   511 			ReportError(KErrCorrupt);
   512 			}
   513 		}
   514 	else if(aRequest == KVendorGetPayloadRequest)
   515 		{
   516 		// Handle a payload request to the host
   517 
   518 		RDebug::Printf("Get payload");
   519 		__ASSERT_DEBUG(iAuxBuffer, User::Panic(_L("Trying to write non-allocated buffer"), KErrGeneral));
   520 		RDebug::Printf("iAuxBuffer = ....");
   521 		RDebug::RawPrint(*iAuxBuffer);
   522 		RDebug::Printf("\n");
   523 		
   524 		//Perform synchronous write to EP0
   525 		//This allows the subsequent 'Read' request to
   526 		//take place
   527 		TInt ret = iDeviceEp0->SendDataSynchronous(*iAuxBuffer);
   528 		RDebug::Printf("Write (from device callback) executed with error %d", ret);
   529 		}
   530 	else if(aRequest == KVendorUnrespondRequest)
   531 		{
   532 		// Do not acknowledge this request
   533 		
   534 		RDebug::Printf("Unrespond request: continually NAK the host");
   535 		}
   536 	else if(aRequest == KVendorStallRequest)
   537 		{
   538 		// Stall the specified endpoint
   539 		
   540 		AcknowledgeRequestReceived();
   541 		RDebug::Printf("Stalling endpoint %d",aValue);
   542 						
   543 		}
   544 	else
   545 		{
   546 		// Maybe forward to derived classes
   547 		}
   548 	return KErrNone;
   549 	}
   550 
   551 
   552 void RUsbTestDevice::StateChangeL(TUsbcDeviceState aNewState,TInt aChangeCompletionCode)
   553 	{
   554 	LOG_FUNC
   555 	
   556 	RDebug::Printf("Client state change to %d err=%d",aNewState,aChangeCompletionCode);
   557 	
   558 	// Notify the test case of failed state change notification
   559 	
   560 	if(aChangeCompletionCode != KErrNone)
   561 		{
   562 		return ReportError(aChangeCompletionCode);
   563 		}
   564 	
   565 	// Check the state change
   566 	
   567 	if(iCurrentState == EUsbcDeviceStateConfigured)
   568 		{
   569 		// Device is already in a fully configured state
   570 		
   571 		if(aNewState == EUsbcDeviceStateConfigured)
   572 			{
   573 			// Do nothing as this is the current state anyway
   574 			}
   575 		else
   576 			{
   577 			// The is a state change from EUsbcDeviceStateConfigured to aNewState
   578 			// so stop reading from control ep0
   579 			
   580 			RDebug::Printf("Ignoring control ep0");
   581 			
   582 			// Stop reading ep0 directed requests
   583 			
   584 			StopEp0Reading();
   585 			
   586 			// Update state
   587 						
   588 			iCurrentState = aNewState;
   589 			}
   590 		}
   591 	else
   592 		{
   593 		// Device is not in a fully configured state
   594 		
   595 		if(aNewState == EUsbcDeviceStateConfigured)
   596 			{
   597 			// Device has now been placed into a fully configured state by the host
   598 			// so start reading from control ep0
   599 			
   600 			RDebug::Printf("Reading from control ep0");
   601 			
   602 			// Start reading ep0 directed requests
   603 			
   604 			StartEp0Reading();
   605 			
   606 			// Update state
   607 						
   608 			iCurrentState = aNewState;
   609 			}
   610 		else
   611 			{
   612 			// Just update the state
   613 			
   614 			iCurrentState = aNewState;
   615 			}
   616 		}
   617 				
   618 	// Forward the state change notification to derived classes
   619 	
   620 	OnStateChangeL(aNewState);
   621 	}
   622 	
   623 
   624 void RUsbTestDevice::StartEp0Reading()
   625 	{
   626 	LOG_FUNC
   627 
   628 	// Start reading device directed ep0 requests
   629 	
   630 	TInt err(iDeviceEp0->Start());
   631 	if(err != KErrNone)
   632 		{
   633 		return ReportError(err);
   634 		}
   635 		
   636 	// Start reading interface directed requests
   637 			
   638 	TInt interfaceCount(iInterfaces.Count());
   639 	for(TInt i=0; i<interfaceCount; i++)
   640 		{
   641 		iInterfaces[i]->StartEp0Reading();
   642 		}
   643 	}
   644 
   645 
   646 void RUsbTestDevice::StopEp0Reading()
   647 	{
   648 	LOG_FUNC
   649 
   650 	// Stop reading interface directed requests
   651 	
   652 	TInt interfaceCount(iInterfaces.Count());
   653 	for(TInt i=0; i<interfaceCount; i++)
   654 		{
   655 		iInterfaces[i]->StopEp0Reading();
   656 		}
   657 		
   658 	// Stop reading device directed requests from ep0
   659 			
   660 	TInt err(iDeviceEp0->Stop());
   661 	if(err != KErrNone)
   662 		{
   663 		return ReportError(err);
   664 		}
   665 	}
   666 
   667 
   668 void RUsbTestDevice::AcknowledgeRequestReceived()
   669 	{
   670 	LOG_FUNC
   671 	
   672 	TInt err(iDeviceEp0->Reader().Acknowledge());
   673 	RDebug::Printf("err = %d",err);
   674 	if(err != KErrNone)
   675 		{
   676 		ReportError(err);
   677 		}
   678 	}
   679 
   680 
   681 
   682 void RUsbTestDevice::ReportError(TInt aCompletionCode)
   683 	{
   684 	LOG_FUNC
   685 	RDebug::Printf("err or aCompletionCode = %d, observer status = %d, KRequestPending = %d",
   686 			aCompletionCode, iObserverStatus->Int(), KRequestPending);
   687 	if(*iObserverStatus == KRequestPending)
   688 		{
   689 		RDebug::Printf("In complete request");
   690 		User::RequestComplete(iObserverStatus,aCompletionCode);
   691 		}
   692 	}
   693 	
   694 
   695 	}
   696