sl@0: // Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // e32\drivers\pbus\mmc\mmccd_init.cpp
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <drivers/mmccd_ifc.h>
sl@0: #include <drivers/pbusmedia.h>
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: /**
sl@0: Starts the sequence of operations that creates the platform specific objects,
sl@0: registers the socket, and initialises the stack.
sl@0: 
sl@0: The function is called in the Variant DLL's entry point code, i.e. when
sl@0: the kernel extension is initialised.
sl@0: 
sl@0: Note that the Variant DLL is a kernel extension.
sl@0: 
sl@0: @return KErrNone if creation and initialisation is successful;
sl@0:         one of the other system wide error codes otherwise.
sl@0:         
sl@0: @see TMMCardControllerInterface::NewStack()
sl@0: @see TMMCardControllerInterface::NewMediaChange()
sl@0: @see TMMCardControllerInterface::NewVcc()
sl@0: @see TMMCardControllerInterface::Init()
sl@0: @see TMMCardControllerInterface::IsMMCStack()
sl@0: @see TMMCardControllerInterface::MediaChangeID()
sl@0: @see TMMCardControllerInterface::VccID()
sl@0: */	 
sl@0: EXPORT_C TInt TMMCardControllerInterface::Create()
sl@0: //
sl@0: // Allocate any resources. Only done once on kernel initialization so don't
sl@0: // worry about cleanup if it fails.
sl@0: //
sl@0: 	{
sl@0: 	TInt r=KErrNone;
sl@0: 	__KTRACE_OPT(KPBUS1,Kern::Printf(">TMMCardControllerInterface::Create"));
sl@0: 
sl@0: 	// Create the password store (a single password store
sl@0: 	//  is allocated for the use of all MMC stacks
sl@0: 
sl@0: 	TMMCPasswordStore* theMmcPasswordStore = (TMMCPasswordStore*)LocDrv::PasswordStore();
sl@0: 	if(theMmcPasswordStore == NULL)
sl@0: 		{
sl@0: 		theMmcPasswordStore = new TMMCPasswordStore();
sl@0: 		if(theMmcPasswordStore)
sl@0: 			{
sl@0: 			if((r = theMmcPasswordStore->Init()) == KErrNone)
sl@0: 				r = LocDrv::RegisterPasswordStore(theMmcPasswordStore);					
sl@0: 
sl@0: 			if(r != KErrNone)
sl@0: 				delete theMmcPasswordStore;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			r = KErrNoMemory;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	if(r!= KErrNone)
sl@0: 		return r;
sl@0: 
sl@0: 	r = Init();
sl@0: 	if (r != KErrNone)
sl@0: 		return r;
sl@0: 
sl@0: 
sl@0: 	SMediaDeviceInfo mdi;
sl@0: 	TInt i;
sl@0: 	for (i=0; i<KMaxPBusSockets && r==KErrNone; i++)
sl@0: 		{
sl@0: 		if (IsMMCSocket(i,mdi))
sl@0: 			{
sl@0: 			__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d is MMC card",i));
sl@0: 
sl@0: 			// Allocate a new socket
sl@0: 			DMMCSocket* pS = NewSocket(i, theMmcPasswordStore);
sl@0: 			if (!pS)
sl@0: 				{
sl@0: 				r=KErrNoMemory;
sl@0: 				break;
sl@0: 				}
sl@0: 			TheSockets[i]=pS;
sl@0: 
sl@0: 			// Allocate a variant specific stack object via the interface
sl@0: 			DMMCStack* pStack=NewStack(i, pS);
sl@0: 			if (!pStack)
sl@0: 				{
sl@0: 				r=KErrNoMemory;
sl@0: 				break;
sl@0: 				}
sl@0: 
sl@0: 			pS->iStack=pStack;
sl@0: 
sl@0: 			TInt mcid=MediaChangeID(i);
sl@0: 			__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d Media Change %d",i,mcid));
sl@0: 			DMMCMediaChange* pM=(DMMCMediaChange*)TheMediaChanges[mcid];
sl@0: 			if (!pM)
sl@0: 				{
sl@0: 				__KTRACE_OPT(KPBUS1,Kern::Printf("New Media Change"));
sl@0: 				pM=NewMediaChange(mcid);
sl@0: 				if (!pM)
sl@0: 					{
sl@0: 					r=KErrNoMemory;
sl@0: 					break;
sl@0: 					}
sl@0: 				TheMediaChanges[mcid]=pM;
sl@0: 				__KTRACE_OPT(KPBUS1,Kern::Printf("Media Change %d at %08x",mcid,pM));
sl@0: 				r=pM->Create();
sl@0: 				if (r!=KErrNone)
sl@0: 					break;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				__KTRACE_OPT(KPBUS1,Kern::Printf("Media Change %d already exists at %08x",mcid,pM));
sl@0: 				++pM->iReplyCount;
sl@0: 				}
sl@0: 			TInt vcc=VccID(i);
sl@0: 			__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d Vcc %d",i,vcc));
sl@0: 			DMMCPsu* pV=(DMMCPsu*)TheVccs[vcc];
sl@0: 			if (!pV)
sl@0: 				{
sl@0: 				__KTRACE_OPT(KPBUS1,Kern::Printf("New Vcc"));
sl@0: 				pV=NewVcc(vcc,mcid);
sl@0: 				if (!pV)
sl@0: 					{
sl@0: 					r=KErrNoMemory;
sl@0: 					break;
sl@0: 					}
sl@0: 				TheVccs[vcc]=pV;
sl@0: 				
sl@0: 				// Assign Socket here such that iDFc can be obtained
sl@0: 				pV->iSocket=pS;
sl@0: 				
sl@0: 				__KTRACE_OPT(KPBUS1,Kern::Printf("Vcc %d at %08x",vcc,pV));
sl@0: 				r=pV->Create();
sl@0: 				if (r!=KErrNone)
sl@0: 					break;
sl@0: 				}
sl@0: 			else 
sl@0: 				{
sl@0: 				__KTRACE_OPT(KPBUS1,Kern::Printf("Vcc %d already exists at %08x, mcid=%d",vcc,pV,pV->iMediaChangeNum));
sl@0: // DISALLOW SHARED PSUs UNTIL SOMEONE NEEDS THEM
sl@0: //				if (pV->iMediaChangeNum!=mcid)
sl@0: //					{
sl@0: 					r=KErrInUse;
sl@0: //					break;
sl@0: //					}
sl@0: 				}
sl@0: 			
sl@0: 			DMMCPsu* pVCore=(DMMCPsu*)TheVccCores[vcc];
sl@0: 			// N.B. Assume paired vcc & vccQ unit are numbered identically!
sl@0: 			pVCore=NewVccCore(vcc,mcid);
sl@0: 			if (pVCore)
sl@0: 				{
sl@0: 				TheVccCores[vcc]=pVCore;
sl@0: 				__KTRACE_OPT(KPBUS1,Kern::Printf("VccCore %d at %08x",vcc,pVCore));
sl@0: 				
sl@0: 				// Assign Socket here such that iDFcQ can be obtained
sl@0: 				pVCore->iSocket=pS;
sl@0: 				
sl@0: 				r=pVCore->Create();
sl@0: 				if (r!=KErrNone)
sl@0: 					break;
sl@0: 				
sl@0: 				// VccCore must issue sleep instead of power down 
sl@0: 				pVCore->iPwrDownCheckFn = DMMCPsu::SleepCheck;				
sl@0: 				}
sl@0: 			//else do nothing doesn't matter if its not supported
sl@0: 			
sl@0: 			r=pS->Create(mdi.iDeviceName);
sl@0: 			if (r!=KErrNone)
sl@0: 				break;
sl@0: 
sl@0: 			pS->iMediaChangeNumber=mcid;
sl@0: 			pS->iMediaChange=pM;
sl@0: 			pS->iVcc=pV;
sl@0: 			if (pVCore)
sl@0: 				{
sl@0: 				pS->iVccCore = pVCore;
sl@0: 				}
sl@0: 
sl@0: 			r=pS->Init();
sl@0: 			if (r!=KErrNone)		
sl@0: 				break;
sl@0: 
sl@0: 			r = RegisterMediaDevices(i);
sl@0: 			if(r != KErrNone)
sl@0: 			   break;
sl@0: 			
sl@0: 			__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d Created OK",i));
sl@0: 			}
sl@0: 		else
sl@0: 			__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d not MMC card",i));
sl@0: 		}
sl@0: 		
sl@0: 	__KTRACE_OPT(KPBUS1,Kern::Printf("<TMMCardControllerInterface::Create, ret %d",r));
sl@0: 	return r;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TInt TMMCardControllerInterface::RegisterMediaDevices(TInt aSocket)
sl@0: /**
sl@0: Registers the media devices for the specified socket.
sl@0: By default, All MMC derivatives register at least an MMC driver
sl@0: @internal
sl@0: */
sl@0: 	{
sl@0: 	TInt err = KErrNone;
sl@0: 	
sl@0: 	SMediaDeviceInfo mdi;
sl@0: 
sl@0: 	if (IsMMCSocket(aSocket, mdi) == EFalse)
sl@0: 		return(KErrNotSupported);
sl@0: 		
sl@0: 	DMMCSocket* pS = (DMMCSocket*) TheSockets[aSocket];
sl@0: 	if(pS == NULL)
sl@0: 		return(KErrNoMemory);
sl@0: 
sl@0: 	TMMCMachineInfo mi;
sl@0: 	pS->iStack->MachineInfo(mi);
sl@0: 	
sl@0: 	// There may be more than one physical card slot for this socket/stack;
sl@0: 	// if this is the case, then we have to create a separate DPBusPrimaryMedia 
sl@0: 	// for each one. This is the only way to get the local media sub-system to iterate 
sl@0: 	// through the installed set of media drivers repeatedly for each card slot
sl@0: 	// (rather than once for the entire stack). We also need to share the number of 
sl@0: 	// drives/partitions (SMediaDeviceInfo.iDriveCount) and the number of media 
sl@0: 	// (SMediaDeviceInfo.iNumMedia) equally between the slots...
sl@0: 	__ASSERT_ALWAYS(mdi.iDriveCount >= mi.iTotalSockets, DMMCSocket::Panic(DMMCSocket::EMMCInvalidNumberOfCardSlots) );
sl@0: 	__ASSERT_ALWAYS(mdi.iNumMedia >= mi.iTotalSockets, DMMCSocket::Panic(DMMCSocket::EMMCInvalidNumberOfCardSlots) );
sl@0: 
sl@0: 	TInt physicalCardSlots = mi.iTotalSockets;
sl@0: 	TInt drivesPerSlot = mdi.iDriveCount / physicalCardSlots;
sl@0: 	TInt numMediaPerSlot = mdi.iNumMedia / physicalCardSlots;
sl@0: 	TInt driveListIndex = 0;
sl@0: 
sl@0: #if !defined(__WINS__)
sl@0: 	DMMCStack::TDemandPagingInfo demandPagingInfo;
sl@0: 	demandPagingInfo.iPagingDriveList = NULL;
sl@0: 	demandPagingInfo.iDriveCount = 0;
sl@0: 	TBool demandPagingSupported = 
sl@0: 		pS->iStack->DemandPagingInfo(demandPagingInfo) == KErrNone ? (TBool)ETrue : (TBool)EFalse;
sl@0: 
sl@0: #endif // __WINS__
sl@0: 
sl@0: 
sl@0: 	for (TInt i=0; i<physicalCardSlots ; i++)	
sl@0: 		{
sl@0: 		DPBusPrimaryMedia* pMedia = new DPBusPrimaryMedia(pS);
sl@0: 		if (pMedia == NULL)
sl@0: 			return(KErrNoMemory);
sl@0: 		// store the slot number in DPBusPrimaryMedia so that it can 
sl@0: 		// subsequently be passed to the media driver.
sl@0: 		pMedia->iSlotNumber = i;
sl@0: 
sl@0: 		err = LocDrv::RegisterMediaDevice(
sl@0: 				mdi.iDevice,
sl@0: 				drivesPerSlot,
sl@0: 				mdi.iDriveList+driveListIndex,
sl@0: 				pMedia,
sl@0: 				numMediaPerSlot,
sl@0: 				*mdi.iDeviceName);
sl@0: 		if (err != KErrNone)
sl@0: 			break;
sl@0: 
sl@0: #if !defined(__WINS__)
sl@0: 		if (demandPagingSupported && demandPagingInfo.iSlotNumber == i)
sl@0: 			{
sl@0: 			err = LocDrv::RegisterPagingDevice(
sl@0: 				pMedia, 
sl@0: 				demandPagingInfo.iPagingDriveList,
sl@0: 				demandPagingInfo.iDriveCount,
sl@0: 				demandPagingInfo.iPagingType,
sl@0: 				demandPagingInfo.iReadShift,
sl@0: 				demandPagingInfo.iNumPages);
sl@0: 
sl@0: 			// Ignore error if demand paging not supported by kernel
sl@0: 			if (err == KErrNotSupported)
sl@0: 				err = KErrNone;
sl@0: 
sl@0: 			if (err != KErrNone)
sl@0: 				break;
sl@0: 			}
sl@0: 
sl@0: 		if (mi.iFlags & TMMCMachineInfo::ESupportsDMA)
sl@0: 			{
sl@0: 			err = LocDrv::RegisterDmaDevice(pMedia,
sl@0: 											KMMCardHighCapBlockSize, 
sl@0: 											pS->MaxDataTransferLength(), 
sl@0: 											pS->DmaAlignment());
sl@0: 			if (err != KErrNone)
sl@0: 				break;
sl@0: 			}
sl@0: #endif // __WINS__
sl@0: 
sl@0: 		driveListIndex+= drivesPerSlot;
sl@0: 		}
sl@0: 	
sl@0: 	return(err);
sl@0: 	}