// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of "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:

 // PP_MMC.CPP

 // 

 //

 #include "plat_priv.h"

 #include <property.h>

 #include "variant.h"

 #include "variantmediadef.h"

 #include "mmci.h" 

 //#define  __CARD0_NOT_LOCKABLE__

 //#define  __CARD1_NOT_LOCKABLE__

 const TInt  KDiskSectorSize=512;

 TInt  DWinsMMCStack::TotalMDiskSize=0;		///< mmc card size for emulator

 TUint DWinsMMCStack::CSIZE=0;				///< mmc card size field

 TUint DWinsMMCStack::CSIZE_MULT=0;			///< mmc card size field

 TInt  DWinsMMCStack::TotalWinsMMC_CardSlots = KDefault_TotalWinsCardSlots; ///< total number of MMC card slots for the emulator

 TInt  DWinsMMCStack::TotalWinsMMC_Cards     = KDefault_TotalWinsCards;     ///< total number of MMC cards for the emulator

 const TUint32 KCsdStructure = 0x01;	/* CSD Version No 1.1 */

 const TUint32 KCsdSpecVers  = 0x03;	/* Version 3.1 */

 TInt MapLastErrorEpoc()

 //

 // Map an NT error to an Epoc/32 error.

 //

 	{

 	TInt res=KErrGeneral;

 	switch (GetLastError())

 		{

 		case ERROR_SHARING_VIOLATION : res=KErrAccessDenied; break;

 		case ERROR_LOCK_VIOLATION : res=KErrLocked; break;

 		case ERROR_FILE_NOT_FOUND: res=KErrNotFound; break;

 		case ERROR_PATH_NOT_FOUND: res=KErrPathNotFound; break;

 		case ERROR_ALREADY_EXISTS:

 		case ERROR_FILE_EXISTS:

 			res=KErrAlreadyExists;

 			break;

 		case ERROR_NOT_READY: res=KErrNotReady; break;

 		case ERROR_UNRECOGNIZED_VOLUME:

 		case ERROR_NOT_DOS_DISK:

 			res=KErrUnknown;

 			break;

 		case ERROR_UNRECOGNIZED_MEDIA: res=KErrCorrupt; break;

 		case ERROR_INVALID_NAME: res=KErrBadName; break;

 		case ERROR_NO_MORE_FILES: res=KErrEof; break;

 		}

 	return(res);

 	}

 TMMCErr MapLastErrorMmc()

 //

 // Map an NT error to a TMMCErr error.

 //

 	{

 	DWORD r=GetLastError();

 	TInt res=KErrGeneral;

 	switch (r)

 		{

 		case ERROR_SHARING_VIOLATION:

 		case ERROR_LOCK_VIOLATION:

 			res=KMMCErrLocked;			// KErrLocked

 			break;

 		case ERROR_FILE_NOT_FOUND:

 		case ERROR_PATH_NOT_FOUND:

 			res=KMMCErrNotFound;		// KErrNotFound

 			break;

 		case ERROR_ALREADY_EXISTS:

 		case ERROR_FILE_EXISTS:

 			res=KMMCErrAlreadyExists;	// KErrAlreadyExists

 			break;

 		case ERROR_NOT_READY: res=KMMCErrNoCard; break;

 		case ERROR_UNRECOGNIZED_VOLUME:

 		case ERROR_NOT_DOS_DISK:

 			res=KMMCErrGeneral;			// KErrGeneral

 			break;

 		case ERROR_UNRECOGNIZED_MEDIA:

 		case ERROR_INVALID_NAME:

 		case ERROR_NO_MORE_FILES:

 			res=KMMCErrResponseCRC; 	// KErrCorrupt

 			break;

 		}

 	return(res);

 	}

 void DWinsMMCStack::MachineInfo(TMMCMachineInfo& aMachineInfo)

 //

 // Return machine info relating to this MultiMediaCard Stack

 //

 	{

 	aMachineInfo.iTotalSockets=TotalWinsMMC_CardSlots;

 	aMachineInfo.iTotalMediaChanges=0;  		// Not used at present

 	aMachineInfo.iTotalPrimarySupplies=0;		// Not used at present

 	aMachineInfo.iFlags = TMMCMachineInfo::ESupportsDoubleBuffering;

     aMachineInfo.iBaseBusNumber=0;

 	__KTRACE_OPT(KPBUS1,Kern::Printf("<WinsMMC:MachineInfo"));

 	__KTRACE_OPT(KPBUS1,Kern::Printf(" %d stacks",aMachineInfo.iTotalSockets));

 	__ASSERT_DEBUG(aMachineInfo.iTotalSockets<=KMaxMMCardsPerStack,Panic(EWinsMMCBadMachineInfo));

 	}

 void DWinsMMCStack::AdjustPartialRead(

 	const TMMCard* aCard, TUint32 aStart, 

 #ifdef _DEBUG

 	TUint32 aEnd, 

 #else

 	TUint32 /*aEnd*/, 

 #endif

 	TUint32* aPhysStart, TUint32* aPhysEnd) const

 	{

 	const TUint32 blkLen = 1 << aCard->MaxReadBlLen();

 	const TUint32 blkMsk = blkLen - 1;

 #ifdef _DEBUG

 	__ASSERT_DEBUG(aCard->CSD().ReadBlPartial(), Panic(EWinsMMCAPRNotSupp));

 	__ASSERT_DEBUG(aEnd - aStart <= blkLen, Panic(EWinsMMCAPRRange));

 	__ASSERT_DEBUG((aEnd & ~blkMsk) > (aStart & ~blkMsk), Panic(EWinsMMCAPRBoundary));

 #endif

 	*aPhysStart = aStart & ~blkMsk;

 	*aPhysEnd = *aPhysStart + blkLen;

 	}

 void DWinsMMCStack::GetBufferInfo(TUint8** aMDBuf, TInt* aMDBufLen)

 	{

 	*aMDBuf = iMDBuf;

 	*aMDBufLen = iMDBufLen;

 	}

 void DWinsMMCStack::Panic(TWinsMMCPanic aPanic)

 	{

 	_LIT(KPncNm,"PBUS-MMC-WINS");

 	Kern::PanicCurrentThread(KPncNm,aPanic);

 	}

 DWinsMMCStack::DWinsMMCStack(TInt aBus, DMMCSocket* aSocket)

 	          :DMMCStack(aBus, aSocket)

 	{

 //	iAddressedCard=0;

 //	iSecureArgDevAddr=0;

 //	iSecureArgTotalLength=0;

 //	iCMD42Failed=EFalse;

 	}

 /**

     Allocate cards.  Only called at bootup, so no cleanup if fails.

 */

 TInt DWinsMMCStack::Init()

 	{

     //-- try to read number of mmc cards and slots from epoc.ini file

     const TInt MmcSlots = Property::GetInt("MultiMediaCardSlots");

     const TInt MmcCards = Property::GetInt("MultiMediaCardsNum");

     if(MmcSlots == 0 && MmcCards == 0)

         {//-- parameters not specified, do nothing; static variables are initialized with default values

         }

     else

         {

         if((MmcSlots == 0 && MmcCards >0) || (MmcSlots > 0 && MmcCards ==0))

             {//-- only one of the parameters is specified. use it as "Cards quantity"

             TotalWinsMMC_Cards     = Max(MmcSlots, MmcCards); //-- chose non zero value

             TotalWinsMMC_CardSlots = Max(1, TotalWinsMMC_Cards-1);

             }

         else

             {//-- both parameters are specified

             TotalWinsMMC_Cards     = MmcCards;

             TotalWinsMMC_CardSlots = MmcSlots;

             }

         }//if(!MmcSlots && !MmcCards)

     TotalWinsMMC_Cards      = Min(TotalWinsMMC_Cards, KMax_TotalWinsCards);

     TotalWinsMMC_CardSlots  = Min(TotalWinsMMC_CardSlots, KMax_TotalWinsCardSlots);

     if((iCardArray = new TMMCardArray(this)) == NULL)

 		return KErrNoMemory;

 	TInt r=DMMCStack::Init();

 	if(r!=KErrNone)

 		return r;

 	DMediaChangeBase* pMCBase = MMCSocket()->iMediaChange;

 	static_cast<DWinsMMCMediaChange*>(pMCBase)->SetStackP(this);

 	Wins::SetMediaChangeCallBackPtr(DWinsMMCMediaChange::MediaChangeCallBack, (TAny*)pMCBase);

 	//

 	// Over time memory can become fragmented, and so it is not possible to

 	// allocate physically contiguous pages.  Therefore, the buffers for IO

 	// are allocated at startup.

 	//

 	// For the WINS implementation, fragmentation does not matter because

 	// DMA is not used.  The memory must still be allocated here so MEDMMC is

 	// able to use it.

 	//

 	// The constant calculations could be folded, but this illustrates how the

 	// values are derived.

 	//

 	// MMC only - values from Hitachi 16Mb card, datasheet HB288016MM1

 	// minor buffer must contain enough space for MBR or block

 	const TUint mmcBlkSzLog2 = 9;				// READ_BLK_LEN and WRITE_BLK_LEN

 	const TUint mmcBlkSz = 1 << mmcBlkSzLog2;

 	const TInt mmcMinorBufLen = Max(KDiskSectorSize, mmcBlkSz);

 	// There are 2 slots each with up to 2 media drivers; we allocate 8 blocks for each driver.

 	// It is the media drivers' responsibility to devide up the buffer space according 

 	// to which slot number is allocated to it (DMmcMediaDriverFlash::iCardNumber)

 	const TInt KMinMMCBlocksInBuffer = 16 * MMC0_NUMMEDIA;

 	const TInt mmcCchBufLen = KMinMMCBlocksInBuffer << mmcBlkSzLog2;

 	const TInt mmcTotalBufLen = mmcMinorBufLen + mmcCchBufLen;

 	const TInt totalBufLen = mmcTotalBufLen;

 	iMDBuf = reinterpret_cast<TUint8*>(Kern::Alloc(totalBufLen));

 	iMDBufLen = totalBufLen;

 	// setup card size parameters from epoc.ini

 	if (TotalMDiskSize==0)

 		{

 		// Static member variable TotalMDiskSize initialised to zero by default. Set 

 		// up static member variables TotalMDiskSize, CSIZE and CSIZE_MULT once and 

 		// once only. Use INI file setting if available. Else set to default, IMb.

 		TUint cardSize = Property::GetInt("MultiMediaCardSize");

 		if (cardSize)

 			{

 			// set values to match epoc.ini settings

 			SetupDiskParms(cardSize);

 			}		

 		else

 			{

 			// set default values for 1 MB drive

 			TotalMDiskSize=0x100000;

 			CSIZE=127;

 			CSIZE_MULT=2;

 			}

 		}

 	// Initialise each virtual card that will be used on this stack.

 	TInt i;

 	for (i=0 ; i<TotalWinsMMC_Cards; i++)

 		{

 		if ((r=SetupSimulatedCard(i))!=KErrNone)

 			return(r);

 		}

 	// initialize pointers to currently present cards

 	// Slot zero can toggle between no card; card 0 and card 1.  The current state is

 	// determined by *Kern::CurrentPBusDevicePtr() and toggled by pressing F4 when F5

 	// (door open) is held down.  Because this function is only executed at startup,

 	// assume start with card zero.

 	iCardInfo[0] = iCardPool[0];

 	for (i = 1; i < TotalWinsMMC_CardSlots; ++i)

 		{

 		iCardInfo[i]=iCardPool[i+1];

 		}

 	return(KErrNone);

 	}

 TInt DWinsMMCStack::CreateBinFileForCard(TInt aCardNum,HANDLE* aHandle,TBool aCreateNew)

 //

 // create .bin file in temp directory to contain media area of card.

 //

 	{

 	const char* emulatorPath = Property::GetString("EmulatorMediaPath");

 	if (!Emulator::CreateAllDirectories(emulatorPath))

 		return Emulator::LastError();

 	TBuf8<KMaxFileName> fn8(_L8(emulatorPath));

 	fn8.Append(_L8("MMCCRD"));

 	fn8.AppendNum(aCardNum);

 	fn8.Append(_L8("A.BIN"));

 	fn8.Append('\0');

 	*aHandle = CreateFileA(

 		(LPCSTR) fn8.Ptr(),							// LPCSTR lpFileName,

 		GENERIC_READ | GENERIC_WRITE,				// DWORD dwDesiredAccess

 		FILE_SHARE_READ | FILE_SHARE_WRITE,			// DWORD dwShareMode

 		NULL,										// LPSECURITY_ATTRIBUTES lpSecurityAttributes

 		aCreateNew ? CREATE_ALWAYS : OPEN_ALWAYS,	// DWORD dwCreationDisposition

 		FILE_FLAG_RANDOM_ACCESS,					// DWORD dwFlagsAndAttributes

 			NULL);									// HANDLE hTemplateFile

 	TInt fileSize=GetFileSize(*aHandle,NULL);

 	if (fileSize>TotalMDiskSize)

 		//

 		// The Drive file already exists and size of emulated drive as configured in 

 		// epoc.ini has been reduced. Musn't corrupt the emulated drive so delete the 

 		// drive file and start from scratch. The emulated drive contents will be 

 		// erased.

 		//

 		{

 		CloseHandle(*aHandle);

 		DeleteFileA(

 			(LPCSTR) fn8.Ptr());						// LPCSTR lpFileName,			

 		*aHandle = CreateFileA(

 			(LPCSTR) fn8.Ptr(),							// LPCSTR lpFileName,

 			GENERIC_READ | GENERIC_WRITE,				// DWORD dwDesiredAccess

 			FILE_SHARE_READ | FILE_SHARE_WRITE,			// DWORD dwShareMode

 			NULL,										// LPSECURITY_ATTRIBUTES lpSecurityAttributes

 			aCreateNew ? CREATE_ALWAYS : OPEN_ALWAYS,	// DWORD dwCreationDisposition

 			FILE_FLAG_RANDOM_ACCESS,					// DWORD dwFlagsAndAttributes

 				NULL);									// HANDLE hTemplateFile

 		}

 	if (*aHandle==INVALID_HANDLE_VALUE)

 		return(MapLastErrorEpoc());

 	if (SetFilePointer(*aHandle,TotalMDiskSize,NULL,FILE_BEGIN)==0xffffffffu

 		||	! SetEndOfFile(*aHandle) )

 		{

 		CloseHandle(*aHandle);

 	    return(MapLastErrorEpoc());

 		}

 	return KErrNone;

 	}

 TInt DWinsMMCStack::SetupSimulatedCard(TInt aCardNum)

 //

 // allocate individual card with Win32 file.  Only called at bootup, so no cleanup if fails.

 //

 	{

 	TWinsCardInfo* cip = new TWinsCardInfo;

 	if (cip == 0)

 		return(KErrNoMemory);

 	TUint8 cid[KMMCCIDLength];

 	cid[0] = 'C';

 	cid[1] = 'I';

 	cid[2] = 'D';

 	cid[3] = TUint8('0' + aCardNum);

 	TInt j;

 	for (j = 4; j < KMMCCIDLength - 1; ++j)

 		cid[j] = 'c';

 	cid[KMMCCIDLength - 1] = '#';				// '#' = 0x23, bit zero must be 1

 	cip->iCID=cid;

 	cip->iPWD=new TMediaPassword;

 	if (!cip->iPWD)

 		{

 		delete cip;

 		return(KErrNoMemory);

 		}

 	cip->iState=ECardStateIdle;

 	HANDLE h=NULL;

 	TInt err;

 	if ( (err=CreateBinFileForCard(aCardNum,&h))!=KErrNone )

 		{

 		delete cip;

 		return(err);

 		}

 	cip->iWinHandle=h;

 	iCardPool[aCardNum]=cip;

 	return(KErrNone);

 	}

 void DWinsMMCStack::SetBusConfigDefaults(TMMCBusConfig& aConfig, TUint aClock)

 //

 // Fills BusConfig structure with default values

 //

 	{

 	const TUint KWinsMaxHwInterfaceClk=104000;

 	const TUint KWinsResponseTimeOut=6400;

 	const TUint KWinsDataTimeOut=40000;

 	const TUint KWinsBusyTimeOut=200000;

 	aConfig.iBusClock = (aClock > KWinsMaxHwInterfaceClk) ? KWinsMaxHwInterfaceClk : aClock;

 	aConfig.iResponseTimeOut=KWinsResponseTimeOut;

 	aConfig.iDataTimeOut=KWinsDataTimeOut;

 	aConfig.iBusyTimeOut=KWinsBusyTimeOut;

 	}

 void DWinsMMCStack::InitClockOff()

 //

 // Switch of the identification mode clock and enable the data transfer mode

 // clock instead.

 //

 	{

 	// empty.

 	}

 void DWinsMMCStack::ASSPReset()

 //

 // Stop all activities on the host stack

 //

 	{

 	// empty.

 	}

 void DWinsMMCStack::ASSPDisengage()

 //

 // Forced release of all ASSP resources

 //

 	{

 	}

 void DWinsMMCStack::DoPowerDown()

 //

 // Power down the bus

 //

 	{

 	// Change the state of all virtual cards present to Idle

 	for (TInt i=0 ; i<TotalWinsMMC_CardSlots ; i++)

 		iCardInfo[i]->iState=ECardStateIdle;

 	}

 LOCAL_C TInt SetMediaPasswordEnvironmentVar(TInt aSocketNum,TInt aCardNum,const TDesC8& aPasswd)

 // 

 // Set the password for local drive 'aLocalDrive', card number 'aCardNum' to 'aPasswd' - as an

 // environment variable. Note that the card number is only relevant where the emulated drive

 // supports card hot-swapping (i.e. F4 whilst F5 is held down).

 //

 	{

 	// Setup the appropriate environment variable string '_EPOC_LocDrv_<locDrvNum>_PWORD_<cardNum>'

 	TUint16 envVar[]=L"_EPOC_Socket_X_PWORD_Y";

 	envVar[13]=(TUint16)('0'+aSocketNum);

 	envVar[21]=(TUint16)('0'+aCardNum);

 	// Setup the new value of the environment variable

 	TUint16	envVal[100];

 	TInt len=aPasswd.Length();

 	// the password may be empty if a card's password is cleared

 	if (len>(100-1))

 		return(KErrArgument);

 	memcpy(&envVal[0],reinterpret_cast<const TUint16 *>(aPasswd.Ptr()),len);

 	envVal[len>>1]='\0';

 	// Now set the new value for the environment variable

 	if (SetEnvironmentVariable(envVar,&envVal[0]))

 		return(KErrNone);

 	return KErrGeneral;

 	}

 LOCAL_C TInt MediaPasswordEnvironmentVar(TInt aSocketNum,TInt aCardNum,TDes8& aPasswd)

 // 

 // Get the password for local drive 'aLocalDrive', card number 'aCardNum' into 'aPasswd' - from

 // an environment variable. Note that the card number is only relevant where the emulated drive

 // supports card hot-swapping (i.e. F4 whilst F5 is held down).

 //

 	{

 	TUint16 envVar[]=L"_EPOC_Socket_X_PWORD_Y";

 	envVar[13]=(TUint16)('0'+aSocketNum);

 	envVar[21]=(TUint16)('0'+aCardNum);

 	TUint16 envVal[100];	// To hold the value of the retreived environment variable

 	DWORD len=GetEnvironmentVariable(envVar,&envVal[0],100);

 	if (len>(TUint)100)

 		return(KErrGeneral);

 	if (len)

 		{

 		// Found the requested environment variable so there is a password for this local drive / card. 

 		if ((len<<1)<=KMaxMediaPassword)

 			{

 			aPasswd.FillZ(KMaxMediaPassword);

 			aPasswd.Zero();

 			aPasswd.Copy(reinterpret_cast<TUint8*>(&envVal[0]),len<<1);

 			return(KErrNone);	

 			}

 		else	

 			return(KErrGeneral);	

 		}

 	return(KErrNotFound);

 	}

 TMMCErr DWinsMMCStack::DoPowerUpSM()

 //

 //	State Machine functions implemented in ASSP layer

 //

 	{

 	enum states

 		{

 		EStBegin=0,

 		EStEnd

 		};

 	SMF_BEGIN

 	__KTRACE_OPT(KPBUS1, Kern::Printf("DoPowerUpSM: BEGIN"));

 	if( MMCSocket()->iVcc->SetState(EPsuOnCurLimit) != KErrNone )

 		return( KMMCErrHardware );

 	for (TInt i=0 ; i<TotalWinsMMC_CardSlots ; i++)

 		{

 		// Attempt to retrieve a password for this card from environment settings (as long as this

 		// isn't card0 and we are simulating this is not present)

 		TInt cardNum=(i==0) ? *Wins::CurrentPBusDevicePtr() : i;

 		if (cardNum>=0 && MediaPasswordEnvironmentVar(MMCSocket()->iSocketNumber,cardNum,*(iCardInfo[i]->iPWD))==KErrNone)

 			{

 			// Card has a password so lock it automatically on power up.		

 			iCardInfo[i]->iIsLocked=(iCardInfo[i]->iPWD->Length() > 0);

 			}

 		else	

 			iCardInfo[i]->iIsLocked=EFalse;

 		iCardInfo[i]->iRCA=0x0001;		// Default RCA - spec 2.2, s4.2.1, 5.4

 		}

 		ReportPowerUp();

 	SMF_END

 	}

 TMMCErr DWinsMMCStack::InitClockOnSM()

 //

 // Switch on the identification mode clock

 //

 	{

 	enum states

 		{

 		EStBegin=0,

 		EStEnd

 		};

 	SMF_BEGIN

 	SMF_END

 	}

 TMMCErr DWinsMMCStack::ModifyCardCapabilitySM()

 //

 // This function provides a chance to modify the capability of paticular cards.

 // Licensee may overide this function to modify certain card's capability as needed.

 // A state machine is needed in derived function and function of base class should be

 // called in order to act more generic behaviour.

 //

     {

 		enum states

 			{

 			EStBegin=0,

             EStDone,

 			EStEnd

 			};

     SMF_BEGIN

         SMF_INVOKES( DMMCStack::BaseModifyCardCapabilitySMST, EStDone )

     SMF_STATE(EStDone)

     SMF_END

     }

 TInt DWinsMMCStack::GetTargetSlotNumber(TBool anRCASupplied,const TRCA& anRCA)

 // 

 // Attempt to determine the slot number of the target card. If the received command

 // contained an RCA then 'anRCASupplied' will be ETrue - in which case, 'anRCA'

 // contains the RCA in question.

 // 

 	{

 	TInt selCardIdx = KBroadcastToAllCards;

 	// if an RCA was supplied, then work out which card slot it corresponds to

 	if (anRCASupplied)

 		{

 		for (TInt i = 0 ; i < TotalWinsMMC_CardSlots ; ++i)

 			{

 			if (iCardInfo[i]->iRCA==anRCA)

 				{

 				selCardIdx=i;

 				break;

 				}

 			}

 		}

 	// else search for currently selected card

 	else

 		{

 		for (TInt i = 0; i < TotalWinsMMC_CardSlots; ++i)

 			{

 			if (iCardInfo[i]->iState == ECardStateTran)

 				{

 				selCardIdx = i;

 				break;

 				}

 			}

 		}

 	return(selCardIdx);

 	}

 TMMCErr DWinsMMCStack::IssueMMCCommandSM()

 //

 // Top level ASSP command executor

 //

 	{

 	enum states

 		{

 		EStBegin=0,

 		EStDoubleBuffer,

 		EStCommandDone,

 		EStEnd

 		};

 	TMMCCommandDesc& cmd = Command();

 	TRCA tgtRCA=0;

 	TBool supRCA=EFalse;

 	// Record the RCA if it is embedded in the argument [31:16].

 	if (cmd.iCommand == ECmdSetRelativeAddr	||	cmd.iCommand == ECmdSelectCard

 	||	cmd.iCommand == ECmdSendCSD			||	cmd.iCommand == ECmdSendCID

 	||	cmd.iCommand == ECmdSendStatus		||	cmd.iCommand == ECmdGoInactiveState

 	||	cmd.iCommand == ECmdFastIO 			||  cmd.iCommand == ECmdAppCmd )

 		{

 		supRCA=ETrue;

 		tgtRCA=TUint16(cmd.iArgument >> 16);

 		}

 	// Attempt to determine the target card using supplied RCA

 	TInt selCardIdx=GetTargetSlotNumber(supRCA,tgtRCA);

 	// Simulation of card swapping (i.e. F4/F5) is performed on slot 0. If this is currently

 	// set to simulate no card present and the issued command is targetted specifically at the

 	// card in slot 0 (i.e. not a broadcast command) then timeout.

 	if (selCardIdx==0 && *Wins::CurrentPBusDevicePtr() < 0)

 		return(KMMCErrResponseTimeOut);

 	// If an RCA was supplied but didn't coincide with the RCAs of any cards present 

 	// then timeout (Ignore SET_RCA and APP_CMD as these are sent before RCAs are assigned).

 	if (supRCA && selCardIdx==KBroadcastToAllCards &&

 		cmd.iCommand != ECmdSetRelativeAddr && cmd.iCommand != ECmdAppCmd)

 		return(KMMCErrResponseTimeOut);

 	HANDLE winHandle=NULL;

 	// CMD42 is a data transfer command.  That means the R1 response that it returns

 	// immediately is the state it is in on receiving the data block, and not after

 	// processing it.  If the data block is invalid then LOCK_UNLOCK_FAILED will be

 	// set in the R1 response which is sent in reply to the next command.

 	TBool nextCMD42Failed = EFalse;

 	TBool lock_unlock_failed=EFalse;

 	// When the card is locked, it will only respond to basic command class (0) and

 	// lock card command class (7).  An exception is CMD16.  This is sent before CMD42,

 	// but is classified (MMC Spec 23.2, table 5) as belonging to classes 2 and 4.

 	// For data transfer commands, LOCK_UNLOCK_FAIL is set in response to the following

 	const TMMCCommandEnum origCmd(cmd.iCommand);

 	if (	selCardIdx != KBroadcastToAllCards

 		&&	iCardInfo[selCardIdx]->iIsLocked			// If locked and not in CCC 0 or 7 then skip

 		&&	(	((cmd.iSpec.iCommandClass & (KMMCCmdClassBasic | KMMCCmdClassLockCard)) == 0)

 			&&	cmd.iCommand != ECmdSetBlockLen ) )

 		{

 		lock_unlock_failed = ETrue;				// try to access locked card

 		cmd.iCommand = TMMCCommandEnum(-1);		// skip command processing

 		}

 	SMF_BEGIN

 	TBool rto = EFalse;							// response timeout

 	switch (cmd.iCommand)

 		{

 		case ECmdGoIdleState:	// CMD0

 			{

 			for (TInt i = 0; i < TotalWinsMMC_CardSlots; ++i)

 				iCardInfo[i]->iState = ECardStateIdle;

 			}

 			break;

 		case ECmdSendOpCond:	// CMD1

 			{

 			for (TInt i = 0; i < TotalWinsMMC_CardSlots; ++i)

 				iCardInfo[i]->iState = ECardStateReady;

 			// bit32 is set to indicate cards are not still powering up

 			TUint32 r3 = KMMCWinsCardOCRValue | KMMCOCRBusy;

 			TMMC::BigEndian4Bytes(cmd.iResponse, r3);

 			}

 			break;

 		case ECmdAllSendCID:	// CMD2

 			{

 			TInt idx = FindAnyCardInStack(ECardStateReady);

 			if (idx == -1)

 				rto = ETrue;

 			else

 				{

 				iCardInfo[idx]->iCID.Copy(cmd.iResponse);

 				iCardInfo[idx]->iState = ECardStateIdent;

 				}

 			}

 			break;

 		case ECmdSetRelativeAddr:	// CMD3

 			{

 			TInt idx = FindOneCardInStack(ECardStateIdent);

 			iCardInfo[idx]->iRCA = tgtRCA;

 			iCardInfo[idx]->iState=ECardStateStby;

 			selCardIdx = idx;					// set R1 response at end

 			}

 			break;

 		case ECmdSelectCard:		// CMD7

 			{

 			// switch to broadcast mode so the currently selected and new cards

 			// receive the command simultaneously.

 			TInt idx = FindAnyCardInStack(ECardStateTran);

 			if (idx != -1)

 				iCardInfo[idx]->iState = ECardStateStby;

 			iCardInfo[selCardIdx]->iState = ECardStateTran;

 			}

 			break;

 		case ECmdSendStatus:

 			// R1 response so status return as for any other R1 command.

 			break;

 		case ECmdReadSingleBlock:

 		case ECmdReadMultipleBlock:

 			{

 			winHandle=iCardInfo[selCardIdx]->iWinHandle;

 			if ( cmd.iSpec.iUseStopTransmission && cmd.iBlockLength >= cmd.iTotalLength)

 				return( KMMCErrNotSupported );

     		TMMCErr err;

 			TInt pos = cmd.iArgument;

     		if (SetFilePointer(winHandle,pos,NULL,FILE_BEGIN)==0xffffffffu)

         		err=MapLastErrorMmc();

     		else

         		{

 				iBytesToTransfer = cmd.BufferLength();

 				err = ReadWriteData(selCardIdx, cmd.iDataMemoryP, iBytesToTransfer, cmd.iSpec.iDirection);

 				if(err == KMMCErrNone)

 					{

 					Session().RequestMoreData();

 					SMF_WAITS(EStDoubleBuffer);

 					}

 				}

 			if (err!=KMMCErrNone)

 				return(err);

 			}

 			break;

 		// ------------------------------------------------------------------

 		case ECmdWriteBlock:

 		case ECmdWriteMultipleBlock:

 			{

 			HANDLE h = iCardInfo[selCardIdx]->iWinHandle;

     		TMMCErr err;

 			TInt pos = cmd.iArgument;

     		if (SetFilePointer(h, pos, NULL, FILE_BEGIN)==0xffffffffu)

         		err = MapLastErrorMmc();

     		else

         		{

 				iBytesToTransfer = cmd.BufferLength();

 				err = ReadWriteData(selCardIdx, cmd.iDataMemoryP, iBytesToTransfer, cmd.iSpec.iDirection);

 				if(err == KMMCErrNone)

 					{

 					Session().RequestMoreData();

 					SMF_WAITS(EStDoubleBuffer);

 					}

 				}

 			if (err!=KMMCErrNone)

 				return(err);

 			}

 			break;

 		case ECmdAppCmd:

 			rto = ETrue;

 			break;

 		case ECmdSendCSD:

 			{

 			iCardInfo[selCardIdx]->GetCSD(cmd.iResponse);

 			break;

 			}

 		// ------------------------------------------------------------------

 		case ECmdLockUnlock:

 			// in EPOC, Lock() does not actually lock the card.  It just sets the

 			// password.  This means that the card is still accessible to the user,

 			// but must be unlocked the next time it is powered up.

 			// a real card will transiently go into rcv and prg state while processing

 			// this command.  When finished, it will fall back into tran state.

 			// The R1 response is sent immediately after CMD42.  CIMReadWriteBlocksSM()

 			// sends CMD13 to find out whether or not LOCK_UNLOCK_FAIL was set.

 			// the asserts in this case protect against invalid data being sent from the

 			// media driver.  A real card would fail these corrupt data blocks.

 			{

 #ifdef __CARD0_NOT_LOCKABLE__

 			if (*Wins::CurrentPBusDevicePtr() == 0)

 				return KMMCErrNotSupported;

 #endif

 #ifdef __CARD1_NOT_LOCKABLE__

 			if (*Wins::CurrentPBusDevicePtr() == 1)

 				return KMMCErrNotSupported;

 #endif

 			const TInt8 cmd_byte(*cmd.iDataMemoryP);

 			__ASSERT_DEBUG(										// ensure not CLR_PWD && SET_PWD

 				!((cmd_byte & KMMCLockUnlockClrPwd) && (cmd_byte & KMMCLockUnlockSetPwd)),

 				DWinsMMCStack::Panic(DWinsMMCStack::EWinsMMCCorruptCommand) );

 			__ASSERT_DEBUG(										// ensure not FORCE_ERASE with CLR_PWD or SET_PWD

 				!((cmd_byte & KMMCLockUnlockErase) && (cmd_byte & (KMMCLockUnlockSetPwd | KMMCLockUnlockClrPwd))),

 				DWinsMMCStack::Panic(DWinsMMCStack::EWinsMMCCorruptCommand) );

 			__ASSERT_DEBUG(										// not actually lock a card while setting the password

 				((cmd_byte & (KMMCLockUnlockLockUnlock | KMMCLockUnlockSetPwd)) != (KMMCLockUnlockLockUnlock | KMMCLockUnlockSetPwd)),

 				DWinsMMCStack::Panic(DWinsMMCStack::EWinsMMCLockAttempt) );

 			if (cmd_byte & KMMCLockUnlockErase)								// Forced Erase of a locked card

 				{

 				if (iCardInfo[selCardIdx]->iIsLocked)						// Forced erase when locked

 					{

 					iCardInfo[selCardIdx]->iPWD->Zero();					// Remove the password

 					iCardInfo[selCardIdx]->iIsLocked = EFalse;

 					nextCMD42Failed = EFalse;

 					TInt cardNum = (selCardIdx==0) ? *Wins::CurrentPBusDevicePtr() : selCardIdx;

 					SetMediaPasswordEnvironmentVar(MMCSocket()->iSocketNumber,cardNum,*(iCardInfo[selCardIdx]->iPWD));

 					// Erase then entire contents of the emulated drive

 					HANDLE handle = iCardInfo[selCardIdx]->iWinHandle;

 					CloseHandle(handle);

 					iCardInfo[selCardIdx]->iWinHandle = NULL;

 					if(CreateBinFileForCard(selCardIdx, &handle, ETrue) != KErrNone)

 						return(MapLastErrorMmc());

 					iCardInfo[selCardIdx]->iWinHandle = handle;

 					}

 				else														// Forced erase when unlocked (illegal)

 					{

 					nextCMD42Failed = ETrue;

 					}

 				}

 			else

 				{

 				const TInt8 pwd_len = *(cmd.iDataMemoryP + 1);

 				const TPtrC8 pwd(cmd.iDataMemoryP + 2, pwd_len);

 				if ((cmd_byte & KMMCLockUnlockClrPwd) != 0)			// CLR_PWD == 1

 					{

 					__ASSERT_DEBUG(

 						pwd_len >= 0 && pwd_len <= KMaxMediaPassword,

 						DWinsMMCStack::Panic(DWinsMMCStack::EWinsMMCCorruptCommand));

 					if (iCardInfo[selCardIdx]->iIsLocked)						// clear when locked

 						nextCMD42Failed = ETrue;

 					else														// clear when unlocked

 						{

 						if (iCardInfo[selCardIdx]->iPWD->Compare(pwd) != 0)		// clear when unlocked with wrong password

 							{

 							nextCMD42Failed = ETrue;

 							lock_unlock_failed = ETrue;

 							}

 						else													// clear when unlocked with right password

 							{

 							// Clear from password store 

 							iCardInfo[selCardIdx]->iPWD->Zero();

 							iCardInfo[selCardIdx]->iIsLocked = EFalse;

 							nextCMD42Failed = EFalse;

 							// Clear from environment settings

 							TInt cardNum=(selCardIdx==0) ? *Wins::CurrentPBusDevicePtr() : selCardIdx; // Can't be -1 at this stage

 							SetMediaPasswordEnvironmentVar(MMCSocket()->iSocketNumber,cardNum,*(iCardInfo[selCardIdx]->iPWD));

 							}

 						}

 					}

 				else if ((cmd_byte & KMMCLockUnlockSetPwd) == 0)	// SET_PWD == 0: unlock

 					{

 					__ASSERT_DEBUG(

 						pwd_len >= 0 && pwd_len <= KMaxMediaPassword,

 						DWinsMMCStack::Panic(DWinsMMCStack::EWinsMMCCorruptCommand) );

 					if (! iCardInfo[selCardIdx]->iIsLocked)						// unlock when unlocked

 						nextCMD42Failed = ETrue;

 					else

 						{

 						if (iCardInfo[selCardIdx]->iPWD->Compare(pwd) != 0)		// unlock when locked with wrong password

 							{

 							nextCMD42Failed = ETrue;

 							lock_unlock_failed = ETrue;

 							}

 						else													// unlock when locked with right password

 							{

 							iCardInfo[selCardIdx]->iIsLocked = EFalse;

 							nextCMD42Failed = EFalse;

 							}

 						}

 					}

 				else  if ((cmd_byte & KMMCLockUnlockSetPwd) == KMMCLockUnlockSetPwd)	// SET_PWD == 1

 					{

 					__ASSERT_DEBUG(

 						cmd_byte & KMMCLockUnlockSetPwd,

 						DWinsMMCStack::Panic(DWinsMMCStack::EWinsMMCCorruptCommand) );

 					// if pwd_len < iCardInfo[selCardIdx]->iPWD->Length() then data block must be invalid.

 					// This can be caused by bad user input rather than inaccurate formation.

 					if (!(	pwd_len >= iCardInfo[selCardIdx]->iPWD->Length()

 						&&	pwd_len <= iCardInfo[selCardIdx]->iPWD->Length() + KMaxMediaPassword ))

 						{

 						nextCMD42Failed = ETrue;

 						}

 					else

 						{

 						TUint16 env_Var[]=L"_EPOC_PWD_LEN";

 						TUint16 env_Val[2];

 						TInt r=GetEnvironmentVariable(env_Var,&env_Val[0],2);

 						r=r;//This code is added to suppress WINS warnings

 						__ASSERT_DEBUG(r!=0,Kern::PanicCurrentThread(_L("PBUS-MMC-WINS-GETENV"),0));			

 						const TInt old_pwd_len=env_Val[0]-1;

 						TPtrC8 old_pwd(cmd.iDataMemoryP + 2, old_pwd_len);

 						TPtrC8 new_pwd(cmd.iDataMemoryP + 2 + old_pwd_len, pwd_len - old_pwd_len);

 						// card must not be locked and supplied current password must be correct

 						if (iCardInfo[selCardIdx]->iIsLocked || iCardInfo[selCardIdx]->iPWD->Compare(old_pwd) != 0)

 							{

 							nextCMD42Failed = ETrue;

 							lock_unlock_failed = ETrue;

 							}

 						else

 							{

 							// Set in password store

 							iCardInfo[selCardIdx]->iPWD->Copy(new_pwd);

 							nextCMD42Failed = EFalse;

 							// Set in environment settings

 							TInt cardNum=(selCardIdx==0) ? *Wins::CurrentPBusDevicePtr() : selCardIdx; // Can't be -1 at this stage

 							SetMediaPasswordEnvironmentVar(MMCSocket()->iSocketNumber,cardNum,*(iCardInfo[selCardIdx]->iPWD));

 							}

 						}

 					}

 				else  if ((cmd_byte & KMMCLockUnlockLockUnlock) == KMMCLockUnlockLockUnlock)

 					{

 					__ASSERT_DEBUG(

 						pwd_len >= 0 && pwd_len <= KMaxMediaPassword,

 						DWinsMMCStack::Panic(DWinsMMCStack::EWinsMMCCorruptCommand) );

 					if (iCardInfo[selCardIdx]->iIsLocked)						// lock when locked

 						nextCMD42Failed = ETrue;

 					else

 						{

 						if (iCardInfo[selCardIdx]->iPWD->Compare(pwd) != 0)		// lock with wrong password

 							{

 							nextCMD42Failed = ETrue;

 							lock_unlock_failed = ETrue;

 							}

 						else													// lock with right password

 							{

 							iCardInfo[selCardIdx]->iIsLocked = ETrue;

 							nextCMD42Failed = EFalse;

 							}

 						}

 					}

 				else

 					{

 					__ASSERT_DEBUG(EFalse, DWinsMMCStack::Panic(DWinsMMCStack::EWinsMMCLockAttempt) );

 					}

 				}

 			}	// case ECmdLockUnlock

 			break;

 		case ECmdSetBlockCount:		

 			{

 			// Only supported in version 3.1

 			if(Session().iCardP->CSD().SpecVers() != 3)

 				{

 				return(KMMCErrNotSupported);

 				}

 			}

 			break;

 		// ------------------------------------------------------------------

 		default:

 			break;

 		}

 		if (rto)

 			{

 			return(KMMCErrResponseTimeOut);

 			}

 	// drop through to command done...

 	SMF_STATE(EStCommandDone)

 		cmd.iCommand = origCmd;

 		// If this is an R1 or R1b response type command then return card status as a response

 		if (	selCardIdx != KBroadcastToAllCards

 			&&	(cmd.iSpec.iResponseType==ERespTypeR1 || cmd.iSpec.iResponseType==ERespTypeR1B) )

 			{

 			TUint32 resp(

 					iCardInfo[selCardIdx]->iState

 				|	((iCardInfo[selCardIdx]->iIsLocked ? 1 : 0) << 25)

 				|	((lock_unlock_failed ? 1 : 0) << 24) );

 			if (iCMD42Failed)								// previous CMD42

 				{

 				resp |= KMMCStatErrLockUnlock;

 				nextCMD42Failed = EFalse;

 				}

 			iCMD42Failed = nextCMD42Failed;

 			TMMC::BigEndian4Bytes(&cmd.iResponse[0],resp); // Ignore bits 47-40

 			}

 		SMF_GOTOS(EStEnd);

 	SMF_STATE(EStDoubleBuffer)

 		cmd.iBytesDone += iBytesToTransfer;

         if(cmd.iBytesDone < cmd.iTotalLength)

 			{

 			iBytesToTransfer = cmd.BufferLength();

 			TMMCErr err = ReadWriteData(selCardIdx, cmd.iDataMemoryP, iBytesToTransfer, cmd.iSpec.iDirection);

 			if(err == KMMCErrNone)

 				{

 				Session().RequestMoreData();

 				SMF_WAITS(EStDoubleBuffer);

 				}

 			else

 				{

 				return(err);

 				}

 			}

 		else

 			{

 			SMF_GOTOS(EStCommandDone);

 			}

 	SMF_END

 	}

 TMMCErr DWinsMMCStack::ReadWriteData(TInt aCardIdx, TUint8* aDataP, TUint32 aLength, TMMCCmdDirEnum aDir)

 	{

 	TMMCErr err = KMMCErrNone;

 	HANDLE h = iCardInfo[aCardIdx]->iWinHandle;

 	DWORD res;

 	TBool success;

 	if(aDir == EDirWrite)

 		{

 		success = WriteFile(h, (LPCVOID)aDataP, aLength, &res, NULL);

 		}

 	else

 		{

 		success = ReadFile(h, (LPVOID)aDataP, aLength, &res, NULL);

 		}

 	if (!success)

 		{

 		err=MapLastErrorMmc();

 		}

 	else if (res != (DWORD)aLength)

 		{

 		err=KMMCErrGeneral;

 		}

 	return(err);

 	}

 TInt DWinsMMCStack::FindAnyCardInStack(TMMCardStateEnum aState)

 //

 // first first active card in supplied state.  Return -1 if

 // no active card is in supplied state.

 //

 	{

 	for (TInt i = 0; i < TotalWinsMMC_CardSlots; ++i)

 		{

 		if (iCardInfo[i]->iState == aState)

 			return i;

 		}

 	return -1;

 	}

 TInt DWinsMMCStack::FindFirstCardInStack(TMMCardStateEnum aState)

 //

 // find card which is active on bus and in supplied state.

 // There can be more than one active card in the the supplied state,

 // but there should be at least one.

 //

 	{

 	TInt idx = -1;

 	for (TInt i = 0; idx != -1 && i < TotalWinsMMC_CardSlots; ++i)

 		{

 		if (iCardInfo[i]->iState == aState)

 			idx = i;

 		}

 	__ASSERT_DEBUG(idx != -1, DWinsMMCStack::Panic(DWinsMMCStack::EStkFFCNoneSel));

 	return idx;

 	}

 TInt DWinsMMCStack::FindOneCardInStack(TMMCardStateEnum aState)

 //

 // find card which is active on bus and in supplied state.

 // There should be exactly one active card in the supplied state.

 //

 	{

 	TInt idx = -1;

 	for (TInt i = 0; i < TotalWinsMMC_CardSlots; ++i)

 		{

 		if (iCardInfo[i]->iState == aState)

 			{

 			__ASSERT_DEBUG(idx == -1, DWinsMMCStack::Panic(DWinsMMCStack::EStkFOCMultiSel));

 			idx = i;

 			}

 		}

 	__ASSERT_DEBUG(idx != -1, DWinsMMCStack::Panic(DWinsMMCStack::EStkFOCNoneSel));

 	return idx;

 	}

 void DWinsMMCStack::SetupDiskParms(TUint aDiskSize)

 	{	

 //

 //	setup parms for emulated mmc disk size

 //

 	// force a minimum of 32 KB total size

 	if (aDiskSize<32)

 		aDiskSize=32;

 	// first setup the CSD parameters

 	CSIZE_MULT = 0;

 	TUint newCSIZE = aDiskSize>>1;	// with zero multiplier 1 + size parameter = size in KB / 2

 	while((newCSIZE>0xfff)&&(CSIZE_MULT<7))	

 		// size parameter 12 bits, multiplier 3 bits

 		{

 		// size parameter too big and multiplier still has room to

 		// grow so increase multiplier and reduce size parameter

 		CSIZE_MULT++; 

 		newCSIZE = aDiskSize>>(1+CSIZE_MULT);

 		}

 	CSIZE = newCSIZE;

 	// as CSIZE = 1 + CSIZE

 	CSIZE--;

 	// restrict to 12 bits

 	if (CSIZE>0xfff)

 		CSIZE=0xfff;

 	// now setup TotalDiskSize

 	TotalMDiskSize = 512 * (1+CSIZE) * (1<<(2+CSIZE_MULT));

 	}

 // ======== TWinsMMCMediaChange ========

 #pragma warning( disable : 4355 )	// this used in initializer list

 DWinsMMCMediaChange::DWinsMMCMediaChange(TInt aMediaChangeNum)

 //

 // Constructor

 //

 	: DMMCMediaChange(aMediaChangeNum),

 	  iMediaChangeEnable(ETrue)

 	{

 	iMediaDoorCloseReload=2; 	// Units: In theory-20ms, Actual-100ms

 	}

 #pragma warning( default : 4355 )

 TInt DWinsMMCMediaChange::Create()

 //

 // Initialiser.

 //

 	{	

 	return(DMediaChangeBase::Create());

 	}

 void DWinsMMCMediaChange::DoorOpenService()

 //

 // Handle the media change (this function, never postponed is called on media

 // change interrupt). 

 //

 	{

 	Disable();		// Disable interrupt until door closes again.

 	iDoorOpenDfc.Enque();

 	}

 void DWinsMMCMediaChange::DoDoorOpen()

 //

 // Handle media door open (called on media door open interrupt). 

 //

 	{

 	iDoorClosedCount=iMediaDoorCloseReload;

 	// Just start a ticklink to poll for door closing

 	iTickLink.Periodic(KMediaChangeTickInterval,DWinsMMCMediaChange::Tick,this);

     }

 void DWinsMMCMediaChange::DoDoorClosed()

 //

 // Handle media door closing

 //

 	{

 	iTickLink.Cancel();	// Doesn't matter if wasn't enabled

 	Enable();	// Re-enable door interrupts

 	// While the door was open the user may have changed the card in slot 0

 	if (iStackP && *Wins::CurrentPBusDevicePtr() >= 0)

 		iStackP->iCardInfo[0]=iStackP->iCardPool[*Wins::CurrentPBusDevicePtr()];

 	}

 void DWinsMMCMediaChange::ForceMediaChange()

 //

 // Force media change

 //

 	{

 	DoorOpenService();

 	}

 TMediaState DWinsMMCMediaChange::MediaState()

 //

 // Return status of media changed signal.

 //

 	{

 	if (iDoorClosedCount>0)

 		return(EDoorOpen);

 	return( (*Wins::MediaDoorOpenPtr())?EDoorOpen:EDoorClosed);

 	}

 void DWinsMMCMediaChange::Tick(TAny *aPtr)

 //

 // Called on the tick to poll for door closing (called on DFC).

 //

 	{

 	((DWinsMMCMediaChange*)aPtr)->TickService();

 	}

 void DWinsMMCMediaChange::TickService()

 //

 // Called on the tick to poll for door closing (called on DFC).

 //

 	{

 	__ASSERT_DEBUG(iDoorClosedCount>=0,DWinsMMCStack::Panic(DWinsMMCStack::EWinsMMCMediaChangeTickFault));

 	if (!(*Wins::MediaDoorOpenPtr()))

 		{

 		if (iDoorClosedCount > 0)

 			{

 			if (--iDoorClosedCount == 0)

 				{

 				iTickLink.Cancel();		// cancel door closed timer

 				DoorClosedService();

 				}

 			}

 		}

 	else

 		iDoorClosedCount=iMediaDoorCloseReload; // Door open so start again.

 	}

 void DWinsMMCMediaChange::Enable()

 //

 // Enable media change 

 //

 	{

 	iMediaChangeEnable=ETrue;

 	}

 void DWinsMMCMediaChange::Disable()

 //

 // Disable media change

 //

 	{

 	iMediaChangeEnable=EFalse;

 	}

 void DWinsMMCMediaChange::MediaChangeCallBack(TAny *aPtr)

 //

 // Static called on media change

 //

 	{

 	DWinsMMCMediaChange* mc=(DWinsMMCMediaChange*)aPtr;

 	if (mc!=NULL&&mc->iMediaChangeEnable)

 		mc->DoorOpenService();

 	}

 // ======== TWinsCardInfo ========

 void TWinsCardInfo::GetCSD(TUint8* aResp) const

 	{

 	// Bits 127-96

 	TUint32 csd=(KCsdStructure<<30); 	/* CSD_STRUCTURE */

 	csd|=		(KCsdSpecVers<<26); 	/* SPEC_VERS */

 	csd|=		(0x0E<<16);				/* TAAC: 1mS */  

 	csd|=		(0x0A<<8);				/* NSAC: 1000 */  

 	csd|=		(0x59);					/* TRAN_SPEED: 5.0Mbit/s */  

 	TMMC::BigEndian4Bytes(&aResp[0],csd);

 	// Bits 95-64

 	TUint32 lockBit = KMMCCmdClassLockCard;

 #ifdef __CARD0_NOT_LOCKABLE__

 	if (*Wins::CurrentPBusDevicePtr() == 0)

 		lockBit = 0;

 #endif

 #ifdef __CARD1_NOT_LOCKABLE__

 	if (*Wins::CurrentPBusDevicePtr() == 1)

 		lockBit = 0;

 #endif

 	const TUint32 ccc = 

 			KMMCCmdClassBasic | KMMCCmdClassBlockRead

 		|	KMMCCmdClassBlockWrite | lockBit;

 	csd=		(ccc<<20); 	/* CCC: classes 0, 2, 4, and 7 */

 	csd|=		(0x9<<16); 	/* READ_BL_LEN: 512 bytes */

 	csd|=		(0x0<<15);	/* READ_BL_PARTIAL: No */  

 	csd|=		(0x0<<14);	/* WRITE_BLK_MISALIGN: No */  

 	csd|=		(0x0<<13);	/* READ_BLK_MISALIGN: No */  

 	csd|=		(0x0<<12);	/* DSR_IMP: No DSR */ 

 	csd|=		((DWinsMMCStack::CSIZE>>10&3)<<8);			/* C_SIZE: MMCSz Kb */

 	csd|=		((DWinsMMCStack::CSIZE>>2) & 0xFF);			/* C_SIZE: MMCSz Kb */

 	TMMC::BigEndian4Bytes(&aResp[4],csd); 

 	// Bits 63-32

 	csd=		((DWinsMMCStack::CSIZE&3)<<30); 			/* C_SIZE: MMCSz Kb */

 	csd|=		(0x1<<27); 	/* VDD_R_CURR_MIN: 1mA */

 	csd|=		(0x1<<24);	/* VDD_R_CURR_MAX: 5mA */  

 	csd|=		(0x2<<21); 	/* VDD_W_CURR_MIN: 5mA */

 	csd|=		(0x3<<18);	/* VDD_W_CURR_MAX: 25mA */  

 	csd|=		((DWinsMMCStack::CSIZE_MULT&0x07)<<15);		/* C_SIZE_MULT: 0 */  

 	csd|=		(0x0<<10);	/* SECTOR_SIZE: 1 write block */  

 	csd|=		(0x0<<5);	/* ERASE_GRP_SIZE: 1 secotr */  

 	csd|=		(0x0);		/* WP_GRP_SIZE: 1 erase group */  

 	TMMC::BigEndian4Bytes(&aResp[8],csd); 

 	// Bits 31-0

 	csd=		(0x0<<31); 	/* WP_GRP_ENABLE: No */

 	csd|=		(0x0<<29); 	/* DEFAULT_ECC: ? */

 	csd|=		(0x3<<26);	/* R2W_FACTOR: 8 */  

 	csd|=		(0x9<<22); 	/* WRITE_BL_LEN: 512 bytes */

 	csd|=		(0x0<<21);	/* WRITE_BL_PARTIAL: No */  

 	csd|=		(0x0<<15);	/* FILE_FORMAT_GRP: Hard disk */  

 	csd|=		(0x0<<14);	/* COPY: original */  

 	csd|=		(0x0<<13);	/* PERM_WRITE_PROTECT: No */  

 	csd|=		(0x0<<12);	/* TMP_WRITE_PROTECT: No */  

 	csd|=		(0x0<<10);	/* FILE_FORMAT: Hard disk */  

 	csd|=		(0x0<<8);	/* ECC: None */  

 	csd|=		(0x0<<1);	/* CRC: ? */  

 	csd|=		(0x1);		/* not used */  

 	TMMC::BigEndian4Bytes(&aResp[12],csd);

 	}

 // ======== TWinsMMCPsu ========

 DWinsMMCPsu::DWinsMMCPsu(TInt aVccNum, TInt aMcId)

 //

 // Constructor.

 //

 	: DMMCPsu(aVccNum, aMcId)

 	{}

 TInt DWinsMMCPsu::DoCreate()

 //

 // Initialise the PSU

 //

     {

 	// Nothing to do

 	return KErrNone;

     }

 void DWinsMMCPsu::DoSetState(TPBusPsuState aState)

 //

 // Turn on/off the PSU. If it is possible to adjust the output voltage on this

 // PSU then retreive the required voltage level from TMMCPsu::iVoltageSetting

 // (which is in OCR register format).

 //

     {

     switch (aState)

         {

         case EPsuOff:

             break;

         case EPsuOnFull:

             break;

         case EPsuOnCurLimit:

             break;

         }

     }

 TInt DWinsMMCPsu::VoltageInMilliVolts()

 //

 // Return the level of the PSU (in mV) or -ve if error.

 //

     {

     return(0);

     }

 void DWinsMMCPsu::DoCheckVoltage()

 //

 // Check the voltage level of the PSU is as expected. Returns either KErrNone, KErrGeneral 

 // to indicate the pass/fail state or KErrNotReady if the voltage check isn't complete.

 //

     {

 	ReceiveVoltageCheckResult(KErrNone);

     }

 void DWinsMMCPsu::PsuInfo(TPBusPsuInfo &anInfo)

 //

 // Return machine info relating to the MMC PSU supply

 //

     {

 	anInfo.iVoltageSupported=0x00040000; // 3.0V (OCR reg. format).

 	anInfo.iMaxCurrentInMicroAmps=0;

 	anInfo.iVoltCheckInterval=0;

 	anInfo.iVoltCheckMethod=EPsuChkComparator;

 	anInfo.iNotLockedTimeOut=0;

 	anInfo.iInactivityTimeOut=5;

     }