// 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 "testcase0681.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-0681");

const TTestCaseFactoryReceipt<CTestCase0681> CTestCase0681::iFactoryReceipt(KTestCaseId);	

CTestCase0681* CTestCase0681::NewL(TBool aHost)

	{

	LOG_FUNC

	CTestCase0681* self = new (ELeave) CTestCase0681(aHost);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

CTestCase0681::CTestCase0681(TBool aHost)

	: CTestCaseB2BRoot(KTestCaseId, aHost, iStatus) 

	{

	LOG_FUNC

	} 

/**

 ConstructL

*/

void CTestCase0681::ConstructL()

	{

	LOG_FUNC

	iDualRoleCase = ETrue;	// another back-back

	BaseConstructL();

	}

CTestCase0681::~CTestCase0681()

	{

	LOG_FUNC

	iCollector.DestroyObservers();

	Cancel();

	}

void CTestCase0681::ExecuteTestCaseL()

	{

	LOG_FUNC

	iCaseStep = EPreconditions;

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

	CActiveScheduler::Add(this);

	SelfComplete();

	}

void CTestCase0681::DoCancel()

	{

	LOG_FUNC

	// cancel our timer

	iTimer.Cancel();

	}

void CTestCase0681::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 CTestCase0681::RunStepL()

	{

	LOG_FUNC

	// Obtain the completion code for this CActive obj.

	TInt completionCode(iStatus.Int()); 

	TBuf<MAX_DSTRLEN> aDescription;

	TInt err(0);

	if(completionCode != KErrNone)

		{

		switch(completionCode)

			{

			case KTestCaseFailureEventReceived:

				{

				TestFailed(KErrAbort, _L("Failure Event Received"));

				break;

				}

			case KTestCaseWatchdogTO:

				{

				TestFailed(KErrAbort, _L("Watchdog timer expired"));			

				break;

				}

			default:

				{

				TestFailed(KErrAbort, _L("Test step completed with Error"));

				break;

				}

			}

		iCollector.DestroyObservers();

		return;

		}

	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(0xF681/*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::EStateBHost);

				//	We shouldn't get configured at any point however since ADevice will call 

				//	BusRespondSrp which should bypass that stage on the way to enabling us to

				//	role swap.

				iCollector.AddFailureNotification(EWatcherPeripheralState, EUsbcDeviceStateConfigured);

				err = otgBusRequest();	

				if (KErrNone != err)

					{

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

					}

				iCaseStep = ESwappedRoles;

								}

			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"));

				}			

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

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

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

			//	We've received SRP. We use BusRespondSRP to raise VBus and cede the host role

			err = otgBusRespondSRP();

			if (KErrNone != err)

				{

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

				}

			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 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 EAConfigured 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 EASuspended 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 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

			test.Printf(_L("VBus present, attempting a swap.\n"));

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

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

			if (KErrNone != err)

				{

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

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

				}

			iCaseStep = ESwappedRoles;

			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")));

		}

	}