// Copyright (c) 2008-2009 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:

// Bootstrap Shadow Memory Region Test Driver

//

// -- INCLUDES ----------------------------------------------------------------

#include "d_trace.h"

#include <bootdefs.h>

#include <kernel/kernboot.h>

#include <kernel/kern_priv.h>

#include <platform.h>

#include <u32hal.h>

#include "d_smr.h"

// -- CLASSES -----------------------------------------------------------------

class DSMRTestFactory : public DLogicalDevice

	{

public:

	virtual TInt Install();

	virtual void GetCaps(TDes8& aDes) const;

	virtual TInt Create(DLogicalChannelBase*& aChannel);

	};

class DSMRTestChannel : public DLogicalChannelBase

	{

public:

	DSMRTestChannel();

	virtual ~DSMRTestChannel();

	//	Inherited from DObject

	virtual TInt RequestUserHandle(DThread* aThread, TOwnerType aType);

	// Inherited from DLogicalChannelBase

	virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);

	virtual TInt Request(TInt aReqNo, TAny* a1, TAny* a2);

public:

	static void TestTrace(DSMRTestChannel* aSelf);

private:

	DThread* iClient;

	};

TInt OpenDumpCloseChunk(TUint32 aBase, TUint32 aSize);

// -- GLOBALS -----------------------------------------------------------------

//

// -- METHODS -----------------------------------------------------------------

//

// TEST FUNCTIONS

//

static TInt ECtrlCheckSMRIBPtr()

	{

	SMR_FUNC("DSMRTestChannel::Request::ECtrlCheckSMRIBPtr");

    TSuperPage& superPage = Kern::SuperPage();

    TLinAddr smrib = superPage.iSmrData;

    SMR_TRACE1("SMRIB - Virtual address %x", smrib);

    return smrib;

	}

static TInt ECtrlPrintSMRIB()

	{

	SMR_FUNC("DSMRTestChannel::Request::ECtrlPrintSMRIB");

    TSuperPage& superPage = Kern::SuperPage();

    TLinAddr smrib = superPage.iSmrData;

    SMR_TRACE1("SMRIB - Virtual address %x", smrib);

    if (smrib == KSuperPageAddressFieldUndefined)

    	SMR_LOGMSG_RETURN ("SMRIB Does not exist!", KErrBadHandle);

    SSmrBank* smrPtr = (SSmrBank*)(smrib);

    int x=0;

    while (smrPtr->iBase != 0)

        {

        SMR_TRACE6("SMRIB entry %d (0x%x): %x, %x, %x, %x", x, smrPtr, smrPtr->iBase, smrPtr->iSize, smrPtr->iPayloadUID, smrPtr->iPayloadFlags);

        x++;

        smrPtr++;

        }

    if (x==0)

    	SMR_TRACE0("SMRIB Zero, no valid entries");

    else

    	SMR_TRACE1("SMRIB Contained %d entries", x);

    return x;

	}

static TInt ECtrlAccessAllSMRs()

	{

	SMR_FUNC("DSMRTestChannel::Request::ECtrlAccessAllSMRs");

    TInt err=0; 

    TSuperPage& superPage = Kern::SuperPage();

    TLinAddr smrib = superPage.iSmrData;

    if (smrib == KSuperPageAddressFieldUndefined)

        return KErrBadHandle;

    SSmrBank* smrPtr = (SSmrBank*)(smrib);

    int x=0;

    while (smrPtr->iBase != 0)

        {

        SMR_TRACE6("SMRIB item %d (0x%x): %x, %x, %x, %x", x, smrPtr, smrPtr->iBase, smrPtr->iSize, smrPtr->iPayloadUID, smrPtr->iPayloadFlags);

        err = OpenDumpCloseChunk(smrPtr->iBase, smrPtr->iSize);

		if (err != KErrNone)

  			return err;

        x++;

        smrPtr++;

        }

    if (x==0)

    	SMR_TRACE0("SMRIB Zero, no valid entries");

    else

    	SMR_TRACE1("SMRIB Contained %d entries", x);

	return x;

	}

static TInt ECtrlFreeHalfSMR1PhysicalRam()

	{

	SMR_FUNC("DSMRTestChannel::Request::ECtrlFreeHalfSMR1PhysicalRam");

    TInt err=0; 

    TSuperPage& superPage = Kern::SuperPage();

    TLinAddr smrib = superPage.iSmrData;

    if (smrib == KSuperPageAddressFieldUndefined)

        return KErrBadHandle;

    SSmrBank* smrPtr = (SSmrBank*)(smrib);

    int x=0;

    if ((smrPtr->iBase == 0) || (smrPtr->iSize == 0))

        SMR_LOGMSG_RETURN("SMRIB Does not contain one entry!", 0); 

    SMR_TRACE6("SMRIB item before %d (0x%x): %x, %x, %x, %x", x, smrPtr, smrPtr->iBase, smrPtr->iSize, smrPtr->iPayloadUID, smrPtr->iPayloadFlags);

	TInt halfSize = smrPtr->iSize >> 1;

	NKern::ThreadEnterCS();

    err = Epoc::FreePhysicalRam(smrPtr->iBase+halfSize, halfSize);

    NKern::ThreadLeaveCS();

    if (err != KErrNone)

        SMR_LOGMSG_RETURN("Epoc::FreePhysicalRam() gave error", err) 

    else

    	SMR_TRACE0("Success - half of physical ram freed for SMR 1");	

	smrPtr->iSize = halfSize;

    SMR_TRACE6("SMRIB item after %d (0x%x): %x, %x, %x, %x", x, smrPtr, smrPtr->iBase, smrPtr->iSize, smrPtr->iPayloadUID, smrPtr->iPayloadFlags);

    err = OpenDumpCloseChunk(smrPtr->iBase, smrPtr->iSize);

	if (err != KErrNone)

  		return err;

	return halfSize;

	}

static TInt ECtrlFreeAllSMR2PhysicalRam()

	{

	SMR_FUNC("DSMRTestChannel::Request::ECtrlFreeAllSMR2PhysicalRam");

    TInt err=0; 

    TSuperPage& superPage = Kern::SuperPage();

    TLinAddr smrib = superPage.iSmrData;

    if (smrib == KSuperPageAddressFieldUndefined)

        return KErrBadHandle;

    SSmrBank* smrPtr = (SSmrBank*)(smrib);

    int x=0;

	if ((smrPtr->iBase == 0) || (smrPtr->iSize == 0))

        SMR_LOGMSG_RETURN("SMRIB Does not contain first entry!", 0);

    smrPtr++; x++;

	if ((smrPtr->iBase == 0) || (smrPtr->iSize == 0))

        SMR_LOGMSG_RETURN("SMRIB Does not contain two entries!", 0);

    smrPtr++; x++;

	if ((smrPtr->iBase == 0) || (smrPtr->iSize == 0))

        SMR_LOGMSG_RETURN("SMRIB Does not contain three entries!", 0);

    SMR_TRACE6("SMRIB item before %d (0x%x): %x, %x, %x, %x", x, smrPtr, smrPtr->iBase, smrPtr->iSize, smrPtr->iPayloadUID, smrPtr->iPayloadFlags);        

   	TInt sizeToFree = smrPtr->iSize;

	NKern::ThreadEnterCS();

    err = Epoc::FreePhysicalRam(smrPtr->iBase, sizeToFree);

    NKern::ThreadLeaveCS();

    if (err != KErrNone)

        SMR_LOGMSG_RETURN("Epoc::FreePhysicalRam() gave error", err) 

    else

    	SMR_TRACE0("Success - all physical ram freed for SMR 2");	

	smrPtr->iBase = 0;

	smrPtr->iSize = 0;

	smrPtr->iPayloadUID = 0;

	smrPtr->iPayloadFlags = 0;

    SMR_TRACE6("SMRIB item after %d (0x%x): %x, %x, %x, %x", x, smrPtr, smrPtr->iBase, smrPtr->iSize, smrPtr->iPayloadUID, smrPtr->iPayloadFlags);

	return sizeToFree;

	}

TInt OpenDumpCloseChunk(TUint32 aBase, TUint32 aSize)

	{

	TInt err;

    TChunkCreateInfo cci;

    DChunk *chunkPtr;

    TLinAddr kernAddr = 0;

    TUint32 mapAttr = 0;

    cci.iType = TChunkCreateInfo::ESharedKernelSingle;

    cci.iMaxSize = 0x800000;

    cci.iMapAttr = EMapAttrCachedMax | EMapAttrSupRw;

    cci.iOwnsMemory = EFalse;

    cci.iDestroyedDfc = 0;

    NKern::ThreadEnterCS();

    err = Kern::ChunkCreate(cci, chunkPtr, kernAddr, mapAttr);

    NKern::ThreadLeaveCS();

    if (err != KErrNone)

    	SMR_LOGMSG_RETURN("Kern::ChunkCreate() gave error", err);

    NKern::ThreadEnterCS();

    err = Kern::ChunkCommitPhysical(chunkPtr, 0, aSize, aBase);

    NKern::ThreadLeaveCS();

    if (err != KErrNone)

    	SMR_LOGMSG_RETURN("Kern::ChunkCommitPhysical() gave error", err); 

    TUint32* setting = (TUint32*)(kernAddr); 

    SMR_TRACE1("SMR Image Memory Dump First Kb @ %08x", setting);

    for (TInt y=0; y < 0x80; y+=16)

        {

        SMR_TRACE5("  %08x:  %08x  %08x  %08x  %08x", setting, setting[0], setting[1], setting[2], setting[3]);

        setting+=4;

        }

    setting = (TUint32*)(kernAddr+aSize-0x80);

	SMR_TRACE1("SMR Image Memory Dump Last Kb @ %08x", setting);

    for (TInt y=0; y < 0x80; y+=16)

        {

        SMR_TRACE5("  %08x:  %08x  %08x  %08x  %08x", setting, setting[0], setting[1], setting[2], setting[3]);

        setting+=4;

        }

    NKern::ThreadEnterCS();

    TBool chunkRefCntZero = Kern::ChunkClose(chunkPtr);

    NKern::ThreadLeaveCS();

    if (chunkRefCntZero == 0)

		SMR_LOGMSG_RETURN("Kern::ChunkClose gave false result", KErrGeneral);

    return KErrNone;

	}

// -- METHODS -----------------------------------------------------------------

//

// DSMRTestFactory

//

TInt DSMRTestFactory::Install()

	{

    SMR_FUNC("DSMRTestFactory::Install");

	return SetName(&RSMRTest::Name());

	}

void DSMRTestFactory::GetCaps(TDes8& aDes) const

	{

    SMR_FUNC("DSMRTestFactory::GetCaps");

  	Kern::InfoCopy(aDes,0,0);

	}

TInt DSMRTestFactory::Create(DLogicalChannelBase*& aChannel)

	{

    SMR_FUNC("DSMRTestFactory::Create");

   	aChannel=new DSMRTestChannel();

	if(!aChannel)

		return KErrNoMemory;

	return KErrNone;

	}

// -- METHODS -----------------------------------------------------------------

//

// DSMRTestChannel

//

DSMRTestChannel::DSMRTestChannel()

	{

    SMR_FUNC("DSMRTestChannel");

   	}

DSMRTestChannel::~DSMRTestChannel()

	{

    SMR_FUNC("~DSMRTestChannel");

	}

TInt DSMRTestChannel::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)

	{

    SMR_FUNC("DSMRTestChannel::DoCreate");

    iClient = &Kern::CurrentThread();

	return KErrNone;

	}

TInt DSMRTestChannel::RequestUserHandle(DThread* aThread, TOwnerType aType)

	{

    SMR_FUNC("DSMRTestChannel::RequestUserHandle");

	if (aType!=EOwnerThread || aThread!=iClient)

		return KErrAccessDenied;

	return KErrNone;

	}

TInt DSMRTestChannel::Request(TInt aReqNo, TAny* a1, TAny*)

	{

    SMR_FUNC("DSMRTestChannel::Request");

	TBool aEnforce = (TBool) a1;

	switch(aReqNo)

		{

	case RSMRTest::ECtrlCheckSMRIBPtr:

		{

		TInt rc = ECtrlCheckSMRIBPtr();

		if (rc < 0)

    		return rc;

		if (aEnforce && rc == 0)

    		return KErrBadHandle;

		break; // fall through, return KErrNone

		}

	case RSMRTest::ECtrlPrintSMRIB:

		{

		TInt rc = ECtrlPrintSMRIB();

		if (rc < 0)

    		return rc;

		if (aEnforce && rc == 0)

    		return KErrNotFound;

		break; // fall through, return KErrNone

		}

	case RSMRTest::ECtrlAccessAllSMRs:

		{

        TInt rc = ECtrlAccessAllSMRs();

		if (rc < 0)

    		return rc;

		if (aEnforce && rc == 0)

    		return KErrNotFound;

    	break; // fall through, return KErrNone

		}

	case RSMRTest::ECtrlFreeHalfSMR1PhysicalRam:

		{

		TInt rc = ECtrlFreeHalfSMR1PhysicalRam();

		if (rc < 0)

    		return rc;

		if (aEnforce && rc == 0)

    		return KErrNotFound;

		break; // fall through, return KErrNone

		}

	case RSMRTest::ECtrlFreeAllSMR2PhysicalRam:

		{

		TInt rc = ECtrlFreeAllSMR2PhysicalRam();

		if (rc < 0)

    		return rc;

		if (aEnforce && rc == 0)

    		return KErrNotFound;

		break; // fall through, return KErrNone

		}

	default:

		return KErrNotSupported;

		}

	return KErrNone;

	}

// -- GLOBALS -----------------------------------------------------------------

DECLARE_STANDARD_LDD()

	{

    SMR_FUNC("D_SMR_DECLARE_STANDARD_LDD");

    const TRomHeader& romHdr = Epoc::RomHeader();

    TInt RHsize = sizeof(TRomHeader);

    SMR_TRACE2("RomHeader - addr %0x; size %d", &romHdr, RHsize);

    TSuperPage& superPage = Kern::SuperPage();

    TInt SPsize = sizeof(SSuperPageBase);

    TInt startupReason = superPage.iHwStartupReason;

    TLinAddr rootDirList = superPage.iRootDirList;

    SMR_TRACE2("SuperPage  - addr %0x; size %d", &superPage, SPsize);

    SMR_TRACE2("SuperPage - StartupReason: %0x; rootDirList %0x", startupReason, rootDirList);

   	return new DSMRTestFactory;

	}