author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 31 Mar 2010 23:38:45 +0300 | |
branch | RCL_3 |
changeset 22 | 2f92ad2dc5db |
parent 20 | 597aaf25e343 |
child 28 | 5b5d147c7838 |
permissions | -rw-r--r-- |
0 | 1 |
// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of the License "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// e32\drivers\pbus\mmc\mmccd_init.cpp |
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// |
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// |
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#include <drivers/mmccd_ifc.h> |
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#include <drivers/pbusmedia.h> |
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/** |
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Starts the sequence of operations that creates the platform specific objects, |
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registers the socket, and initialises the stack. |
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The function is called in the Variant DLL's entry point code, i.e. when |
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the kernel extension is initialised. |
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Note that the Variant DLL is a kernel extension. |
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@return KErrNone if creation and initialisation is successful; |
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one of the other system wide error codes otherwise. |
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@see TMMCardControllerInterface::NewStack() |
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@see TMMCardControllerInterface::NewMediaChange() |
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@see TMMCardControllerInterface::NewVcc() |
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@see TMMCardControllerInterface::Init() |
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@see TMMCardControllerInterface::IsMMCStack() |
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@see TMMCardControllerInterface::MediaChangeID() |
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@see TMMCardControllerInterface::VccID() |
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*/ |
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EXPORT_C TInt TMMCardControllerInterface::Create() |
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// |
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// Allocate any resources. Only done once on kernel initialization so don't |
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// worry about cleanup if it fails. |
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// |
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{ |
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TInt r=KErrNone; |
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__KTRACE_OPT(KPBUS1,Kern::Printf(">TMMCardControllerInterface::Create")); |
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// Create the password store (a single password store |
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// is allocated for the use of all MMC stacks |
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TMMCPasswordStore* theMmcPasswordStore = (TMMCPasswordStore*)LocDrv::PasswordStore(); |
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if(theMmcPasswordStore == NULL) |
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{ |
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theMmcPasswordStore = new TMMCPasswordStore(); |
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if(theMmcPasswordStore) |
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{ |
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if((r = theMmcPasswordStore->Init()) == KErrNone) |
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r = LocDrv::RegisterPasswordStore(theMmcPasswordStore); |
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if(r != KErrNone) |
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delete theMmcPasswordStore; |
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} |
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else |
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{ |
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r = KErrNoMemory; |
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} |
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} |
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if(r!= KErrNone) |
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return r; |
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r = Init(); |
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if (r != KErrNone) |
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return r; |
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SMediaDeviceInfo mdi; |
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TInt i; |
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for (i=0; i<KMaxPBusSockets && r==KErrNone; i++) |
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{ |
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if (IsMMCSocket(i,mdi)) |
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{ |
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__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d is MMC card",i)); |
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// Allocate a new socket |
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DMMCSocket* pS = NewSocket(i, theMmcPasswordStore); |
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if (!pS) |
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{ |
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r=KErrNoMemory; |
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break; |
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} |
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TheSockets[i]=pS; |
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// Allocate a variant specific stack object via the interface |
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DMMCStack* pStack=NewStack(i, pS); |
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if (!pStack) |
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{ |
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r=KErrNoMemory; |
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break; |
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} |
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pS->iStack=pStack; |
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TInt mcid=MediaChangeID(i); |
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__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d Media Change %d",i,mcid)); |
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DMMCMediaChange* pM=(DMMCMediaChange*)TheMediaChanges[mcid]; |
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if (!pM) |
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{ |
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__KTRACE_OPT(KPBUS1,Kern::Printf("New Media Change")); |
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pM=NewMediaChange(mcid); |
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if (!pM) |
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{ |
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r=KErrNoMemory; |
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break; |
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} |
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TheMediaChanges[mcid]=pM; |
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__KTRACE_OPT(KPBUS1,Kern::Printf("Media Change %d at %08x",mcid,pM)); |
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r=pM->Create(); |
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if (r!=KErrNone) |
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break; |
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} |
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else |
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{ |
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__KTRACE_OPT(KPBUS1,Kern::Printf("Media Change %d already exists at %08x",mcid,pM)); |
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++pM->iReplyCount; |
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} |
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TInt vcc=VccID(i); |
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__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d Vcc %d",i,vcc)); |
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DMMCPsu* pV=(DMMCPsu*)TheVccs[vcc]; |
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if (!pV) |
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{ |
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__KTRACE_OPT(KPBUS1,Kern::Printf("New Vcc")); |
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pV=NewVcc(vcc,mcid); |
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if (!pV) |
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{ |
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r=KErrNoMemory; |
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break; |
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} |
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TheVccs[vcc]=pV; |
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// Assign Socket here such that iDFc can be obtained |
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pV->iSocket=pS; |
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__KTRACE_OPT(KPBUS1,Kern::Printf("Vcc %d at %08x",vcc,pV)); |
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r=pV->Create(); |
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if (r!=KErrNone) |
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break; |
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} |
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else |
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{ |
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__KTRACE_OPT(KPBUS1,Kern::Printf("Vcc %d already exists at %08x, mcid=%d",vcc,pV,pV->iMediaChangeNum)); |
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// DISALLOW SHARED PSUs UNTIL SOMEONE NEEDS THEM |
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// if (pV->iMediaChangeNum!=mcid) |
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// { |
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r=KErrInUse; |
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// break; |
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// } |
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} |
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DMMCPsu* pVCore=(DMMCPsu*)TheVccCores[vcc]; |
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// N.B. Assume paired vcc & vccQ unit are numbered identically! |
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pVCore=NewVccCore(vcc,mcid); |
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if (pVCore) |
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{ |
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TheVccCores[vcc]=pVCore; |
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__KTRACE_OPT(KPBUS1,Kern::Printf("VccCore %d at %08x",vcc,pVCore)); |
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// Assign Socket here such that iDFcQ can be obtained |
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pVCore->iSocket=pS; |
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r=pVCore->Create(); |
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if (r!=KErrNone) |
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break; |
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// VccCore must issue sleep instead of power down |
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pVCore->iPwrDownCheckFn = DMMCPsu::SleepCheck; |
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} |
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//else do nothing doesn't matter if its not supported |
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r=pS->Create(mdi.iDeviceName); |
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if (r!=KErrNone) |
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break; |
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pS->iMediaChangeNumber=mcid; |
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pS->iMediaChange=pM; |
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pS->iVcc=pV; |
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if (pVCore) |
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{ |
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pS->iVccCore = pVCore; |
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} |
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r=pS->Init(); |
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if (r!=KErrNone) |
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break; |
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r = RegisterMediaDevices(i); |
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if(r != KErrNone) |
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break; |
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__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d Created OK",i)); |
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} |
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else |
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__KTRACE_OPT(KPBUS1,Kern::Printf("Socket %d not MMC card",i)); |
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} |
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__KTRACE_OPT(KPBUS1,Kern::Printf("<TMMCardControllerInterface::Create, ret %d",r)); |
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return r; |
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} |
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EXPORT_C TInt TMMCardControllerInterface::RegisterMediaDevices(TInt aSocket) |
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/** |
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Registers the media devices for the specified socket. |
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By default, All MMC derivatives register at least an MMC driver |
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@internal |
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*/ |
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{ |
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TInt err = KErrNone; |
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SMediaDeviceInfo mdi; |
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if (IsMMCSocket(aSocket, mdi) == EFalse) |
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return(KErrNotSupported); |
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DMMCSocket* pS = (DMMCSocket*) TheSockets[aSocket]; |
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if(pS == NULL) |
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return(KErrNoMemory); |
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TMMCMachineInfo mi; |
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pS->iStack->MachineInfo(mi); |
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// There may be more than one physical card slot for this socket/stack; |
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// if this is the case, then we have to create a separate DPBusPrimaryMedia |
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// for each one. This is the only way to get the local media sub-system to iterate |
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// through the installed set of media drivers repeatedly for each card slot |
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// (rather than once for the entire stack). We also need to share the number of |
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// drives/partitions (SMediaDeviceInfo.iDriveCount) and the number of media |
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// (SMediaDeviceInfo.iNumMedia) equally between the slots... |
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__ASSERT_ALWAYS(mdi.iDriveCount >= mi.iTotalSockets, DMMCSocket::Panic(DMMCSocket::EMMCInvalidNumberOfCardSlots) ); |
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__ASSERT_ALWAYS(mdi.iNumMedia >= mi.iTotalSockets, DMMCSocket::Panic(DMMCSocket::EMMCInvalidNumberOfCardSlots) ); |
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TInt physicalCardSlots = mi.iTotalSockets; |
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TInt drivesPerSlot = mdi.iDriveCount / physicalCardSlots; |
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TInt numMediaPerSlot = mdi.iNumMedia / physicalCardSlots; |
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TInt driveListIndex = 0; |
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#if !defined(__WINS__) |
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DMMCStack::TDemandPagingInfo demandPagingInfo; |
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demandPagingInfo.iPagingDriveList = NULL; |
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demandPagingInfo.iDriveCount = 0; |
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TBool demandPagingSupported = |
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pS->iStack->DemandPagingInfo(demandPagingInfo) == KErrNone ? (TBool)ETrue : (TBool)EFalse; |
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#endif // __WINS__ |
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for (TInt i=0; i<physicalCardSlots ; i++) |
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{ |
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DPBusPrimaryMedia* pMedia = new DPBusPrimaryMedia(pS); |
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if (pMedia == NULL) |
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return(KErrNoMemory); |
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// store the slot number in DPBusPrimaryMedia so that it can |
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// subsequently be passed to the media driver. |
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pMedia->iSlotNumber = i; |
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err = LocDrv::RegisterMediaDevice( |
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mdi.iDevice, |
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drivesPerSlot, |
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mdi.iDriveList+driveListIndex, |
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pMedia, |
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numMediaPerSlot, |
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*mdi.iDeviceName); |
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if (err != KErrNone) |
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break; |
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#if !defined(__WINS__) |
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if (demandPagingSupported && demandPagingInfo.iSlotNumber == i) |
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{ |
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err = LocDrv::RegisterPagingDevice( |
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pMedia, |
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demandPagingInfo.iPagingDriveList, |
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demandPagingInfo.iDriveCount, |
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demandPagingInfo.iPagingType, |
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demandPagingInfo.iReadShift, |
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demandPagingInfo.iNumPages); |
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// Ignore error if demand paging not supported by kernel |
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if (err == KErrNotSupported) |
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err = KErrNone; |
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if (err != KErrNone) |
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break; |
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} |
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20
597aaf25e343
Revision: 201008
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
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if ((mi.iFlags & TMMCMachineInfo::ESupportsDMA) == TMMCMachineInfo::ESupportsDMA) |
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{ |
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err = LocDrv::RegisterDmaDevice(pMedia, |
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KMMCardHighCapBlockSize, |
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pS->MaxDataTransferLength(), |
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pS->DmaAlignment()); |
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if (err != KErrNone) |
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break; |
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} |
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#endif // __WINS__ |
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driveListIndex+= drivesPerSlot; |
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} |
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return(err); |
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} |