// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of the License "Eclipse Public License v1.0"

 // which accompanies this distribution, and is available

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

 //

 // Initial Contributors:

 // Nokia Corporation - initial contribution.

 //

 // Contributors:

 //

 // Description:

 // @internalComponent

 // 

 //

 #include <e32std.h>

 #include <e32std_private.h>

 #include <u32std.h> 	// unicode builds

 #include <e32base.h>

 #include <e32base_private.h>

 #include <e32Test.h>	// RTest headder

 #include "testcaseroot.h"

 #include "b2bwatchers.h"

 #include "testcase0682.h"

 #define _REPEATS (oOpenIterations*3)

 /* **************************************************************************************

  * the name below is used to add a pointer to our construction method to a pointer MAP in 

  * the class factory

  */

 _LIT(KTestCaseId,"PBASE-USB_OTGDI-0682");

 const TTestCaseFactoryReceipt<CTestCase0682> CTestCase0682::iFactoryReceipt(KTestCaseId);	

 CTestCase0682* CTestCase0682::NewL(TBool aHost)

 	{

 	LOG_FUNC

 	CTestCase0682* self = new (ELeave) CTestCase0682(aHost);

 	CleanupStack::PushL(self);

 	self->ConstructL();

 	CleanupStack::Pop(self);

 	return self;

 	}

 CTestCase0682::CTestCase0682(TBool aHost)

 : 	CTestCaseB2BRoot(KTestCaseId, aHost, iStatus),

 	iFirstRoleSwap(ETrue)

 	{

 	LOG_FUNC

 	} 

 /**

  ConstructL

 */

 void CTestCase0682::ConstructL()

 	{

 	LOG_FUNC

 	iDualRoleCase = ETrue;	// another back-back

 	BaseConstructL();

 	}

 CTestCase0682::~CTestCase0682()

 	{

 	LOG_FUNC

 	iCollector.DestroyObservers();

 	Cancel();

 	}

 void CTestCase0682::ExecuteTestCaseL()

 	{

 	LOG_FUNC

 	iCaseStep = EPreconditions;

 	iHNPCounter = 3;	//	To be decremented to govern the number of times we do HNP.

 	CActiveScheduler::Add(this);

 	SelfComplete();

 	}

 void CTestCase0682::DoCancel()

 	{

 	LOG_FUNC

 	// cancel our timer

 	iTimer.Cancel();

 	}

 void CTestCase0682::StepB2BPreconditions()

 	{

 	// prompt to insert connector and activate A-end first...

 	if (gTestRoleMaster)

 		{ // "B" device

 		test.Printf(_L("***** Important note *****\n"));

 		test.Printf(_L("Before commencing test, please\n"));

 		test.Printf(_L("insert 'B'-cable end and activate\n"));

 		test.Printf(_L("the test on the 'A' device.\n"));

 		test.Printf(_L("Then, press any key to continue.\n"));

 		test.Printf(_L("**************************\n"));

 		}

 	else

 		{

 		test.Printf(KInsertACablePrompt);

 		test.Printf(KPressAnyKeyToContinue);

 		}

 	RequestCharacter();	

 	}

 // handle event completion	

 void CTestCase0682::RunStepL()

 	{

 	LOG_FUNC

 	// Obtain the completion code for this CActive obj.

 	TInt completionCode(iStatus.Int()); 

 	TBuf<MAX_DSTRLEN> aDescription;

 	TInt err(0);

 	switch(iCaseStep)

 		{

 		case EPreconditions:

 			{

 			LOG_STEPNAME(_L("EPreconditions"))

 			iCaseStep = ELoadLdd;

 			StepB2BPreconditions();				

 			break;

 			}

 			// 1. Load the Client LDD 

 		case ELoadLdd:

 			{

 			LOG_STEPNAME(_L("ELoadLdd"))

 			if (!StepLoadClient(0xF682/*use default settings for SRP/HNP support*/))

 				{

 				return TestFailed(KErrAbort, _L("Client Load Failure"));

 				}

 			//  load OTG ldd and init.		

 			if (!StepLoadLDD())

 				{

 				return TestFailed(KErrAbort, _L("OTG Load Failure"));

 				}

 			if(otgActivateFdfActor()!=KErrNone)

 				{

 				return TestFailed(KErrAbort, _L("Couldn't load FDF Actor"));

 				}

 			// test that the right cable is in

 			CheckRoleConnections();

 			// subscribe to OTG states,events and messages now that it has loaded OK

 			TRAPD(result, iCollector.CreateObserversL(*this));

 			if (KErrNone != result)

 				return(TestFailed(KErrNoMemory, _L("Unable to create observers")));

 			iCollector.ClearAllEvents();

 			iCaseStep = EPerformSrp;

 			SelfComplete();

 			break;

 			}

 		case EPerformSrp:

 			{

 			test.Printf(_L("Into EPerformSrp step...\n"));

 			if (gTestRoleMaster)

 				{

 				// Trigger SRP

 				iCollector.AddRequiredNotification(EWatcherState, RUsbOtgDriver::EStateBIdle);

 				iCollector.AddRequiredNotification(EWatcherEvent, RUsbOtgDriver::EEventSrpInitiated);

 				iCollector.AddRequiredNotification(EWatcherEvent, RUsbOtgDriver::EEventVbusRaised);	

 				iCollector.AddRequiredNotification(EWatcherState, RUsbOtgDriver::EStateBPeripheral);

 				err = otgBusRequest();	//	Should generate SRP

 				if (KErrNone != err)

 					{

 					return TestFailed(KErrAbort, _L("Raise Vbus - RUsbOtgDriver::BusRequest() FAILED!"));

 					}

 				iCaseStep = EDefaultRoles;

 				}

 			else

 				{ // slave "A"

 				// Wait for SRP

 				iCollector.AddRequiredNotification(EWatcherEvent, RUsbOtgDriver::EEventSrpReceived);

 				iCaseStep = EAReceivedSrp;

 				}

 			const TInt KTestCase0681Timeout = 30000;			//	30 seconds, should be plenty of time for 3 role swaps

 			iCollector.AddStepTimeout(KTestCase0681Timeout);

 			SetActive();

 			break;

 			}

 		case EAReceivedSrp:		//	A-Device step only!

 			{

 			test.Printf(_L("Into EAReceivedSrp step...\n"));

 			if (KTestCaseWatchdogTO == iStatus.Int())

 				{

 				iCollector.DestroyObservers();

 				return TestFailed(KErrAbort, _L("Timeout"));

 				}			

 			//	We've received SRP. In this test, we use BusRequest to raise VBus but not cede the host role

 			//	before we've enumerated and configured the device.

 			iCollector.AddRequiredNotification(EWatcherEvent, RUsbOtgDriver::EEventVbusRaised);

 			iCollector.AddRequiredNotification(EWatcherEvent, RUsbOtgDriver::EEventRoleChangedToHost);

 			iCollector.AddRequiredNotification(EWatcherState, RUsbOtgDriver::EStateAHost);

 			err = otgBusRequest();

 			if (KErrNone != err)

 				{

 				return TestFailed(KErrAbort, _L("Raise Vbus - RUsbOtgDriver::BusRequest() FAILED!"));

 				}

 			iCaseStep = EDefaultRoles;

 			SetActive();

 			break;

 			}

 		case EDefaultRoles:

 			{

 			test.Printf(_L("Into EDefaultRoles step...\n"));

 			if ( --iHNPCounter >= 0)

 				{

 				//	We want to do further role swapping

 				if (gTestRoleMaster)

 					{

 					//	B-Device should now wait until it is configured

 					iCollector.AddRequiredNotification(EWatcherPeripheralState, EUsbcDeviceStateConfigured);

 					iCaseStep = EBConfigured;

 					}

 				else

 					{

 					//	A-Device should expect nothing more until it becomes A-Peripheral

 					iCollector.AddRequiredNotification(EWatcherState, RUsbOtgDriver::EStateAPeripheral);

 					iCaseStep = ESwappedRoles;

 					}

 				SetActive();

 				}

 			else

 				{

 				//	We've done 3 x HNP cycles back to default roles. 

 				//	Time to shut down VBus and stop the test case.

 				iCaseStep = EDropVBus;

 				SelfComplete();

 				}

 			break;

 			}

 		case EBConfigured:	//	A B-Device only step!

 			{

 			test.Printf(_L("Into EBConfigured step...\n"));

 			if (KTestCaseWatchdogTO == iStatus.Int())

 				{

 				iCollector.DestroyObservers();

 				return TestFailed(KErrAbort, _L("Timeout"));

 				}

 			iCollector.AddRequiredNotification(EWatcherPeripheralState, EUsbcDeviceStateSuspended);

 			iCaseStep = EBSuspended;

 			SetActive();

 			break;

 			}

 		case EBSuspended:	

 			{

 			test.Printf(_L("Into EBSuspended step...\n"));

 			if (KTestCaseWatchdogTO == iStatus.Int())

 				{

 				iCollector.DestroyObservers();

 				return TestFailed(KErrAbort, _L("Timeout"));

 				}			

 			// issue HNP

 			iCollector.AddRequiredNotification(EWatcherState, RUsbOtgDriver::EStateBHost);

 			//	The first time we arrive here, it should be unnecessary for the test code

 			//	to issue a further bus request - it should "remember" that it earlier 

 			//	requested the host role, triggering SRP to be followed (hopefully now) by HNP

 			if(!iFirstRoleSwap)

 				{

 				err = otgBusRequest();	//	Request the host role

 				if (KErrNone != err)

 					{

 					test.Printf(_L("BusRequest returned %d\n"),err);

 					return TestFailed(KErrAbort, _L("BusRequest() failed!"));

 					}

 				}

 			else

 				{

 				//	So that we know next time around that we need to perform a bus request

 				iFirstRoleSwap = EFalse;

 				}

 			iCaseStep = ESwappedRoles;

 			SetActive();

 			break;

 			}

 		case ESwappedRoles:

 			{

 			test.Printf(_L("Into ESwappedRoles step...\n"));

 			if (KTestCaseWatchdogTO == iStatus.Int())

 				{

 				iCollector.DestroyObservers();

 				return TestFailed(KErrAbort, _L("Timeout"));

 				}			

 			if (gTestRoleMaster)

 				{

 				//	B-Device should now wait until it is back to B-Peripheral

 				iCollector.AddRequiredNotification(EWatcherState, RUsbOtgDriver::EStateBPeripheral);

 				iCaseStep = EDefaultRoles;

 				}

 			else

 				{

 				//	A-Device should wait to become a configured A-Peripheral

 				iCollector.AddRequiredNotification(EWatcherPeripheralState, EUsbcDeviceStateConfigured);

 				iCaseStep = EAConfigured;

 				}

 			SetActive();

 			break;

 			}

 		case EAConfigured:	//	A-Device only step

 			{

 			test.Printf(_L("Into EWaitTillAConfigured step...\n"));

 			if (KTestCaseWatchdogTO == iStatus.Int())

 				{

 				iCollector.DestroyObservers();

 				return TestFailed(KErrAbort, _L("Timeout"));

 				}			

 			iCollector.AddRequiredNotification(EWatcherPeripheralState, EUsbcDeviceStateSuspended);

 			iCaseStep = EASuspended;

 			SetActive();

 			break;

 			}

 		case EASuspended:	//	A-Device only step

 			{

 			test.Printf(_L("Into EWaitTillASuspended step...\n"));

 			if (KTestCaseWatchdogTO == iStatus.Int())

 				{

 				iCollector.DestroyObservers();

 				return TestFailed(KErrAbort, _L("Timeout"));

 				}			

 			iCollector.AddRequiredNotification(EWatcherState, RUsbOtgDriver::EStateAHost);	//	Swapping back to default role

 			iCaseStep = EDefaultRoles;

 			SetActive();

 			break;

 			}

 		case EDropVBus:

 			LOG_STEPNAME(_L("EDropVBus"))

 			iCollector.AddRequiredNotification(EWatcherEvent, RUsbOtgDriver::EEventVbusDropped);

 			if ( gTestRoleMaster)

 				{

 				iCollector.AddRequiredNotification(EWatcherState, RUsbOtgDriver::EStateBIdle);

 				iCollector.AddRequiredNotification(EWatcherEvent, RUsbOtgDriver::EEventRoleChangedToDevice);

 				}

 			else

 				{ // SLAVE "A"

 				otgBusDrop();

 				iCollector.AddRequiredNotification(EWatcherState, RUsbOtgDriver::EStateAIdle);

 				iCollector.AddRequiredNotification(EWatcherEvent, RUsbOtgDriver::EEventRoleChangedToHost);

 				}

 			iCaseStep = EVBusDropped;

 			SetActive();

 			break;

 		case EVBusDropped:

 			LOG_STEPNAME(_L("ELoopVerifyDrop"))

 			if (KTestCaseWatchdogTO == iStatus.Int())

 				{

 				return TestFailed(KErrAbort, _L("Timeout"));

 				}

 			if (otgVbusPresent())

 				{

 				return TestFailed(KErrAbort, _L("Vbus did not drop - FAILED!"));

 				}

 			iCaseStep = EUnloadLdd;

 			SelfComplete();

 			break;

 		case EUnloadLdd:

 			LOG_STEPNAME(_L("EUnloadLdd"))

 			otgDeactivateFdfActor();

 			iCollector.DestroyObservers();

 			if (EFalse == StepUnloadLDD())

 				return TestFailed(KErrAbort,_L("unload Ldd failure"));	

 			if (!StepUnloadClient())

 				return TestFailed(KErrAbort,_L("Client Unload Failure"));	

 			iCaseStep = ELastStep;

 			SelfComplete();

 			break;

 		case ELastStep:

 			LOG_STEPNAME(_L("ELastStep"))

 			TestPassed();

 			break;

 		default:

 			test.Printf(_L("<Error> unknown test step"));

 			Cancel();

 			return (TestFailed(KErrCorrupt, _L("<Error> unknown test step")));

 		}

 	}