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// Copyright (c) 2009-2010 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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// CMassStorageFileSystem implementation.
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//
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//
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/**
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@file
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@internalTechnology
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*/
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#include <e32def.h>
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#include <f32ver.h>
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#include <f32fsys.h>
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#include "usbmsshared.h"
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#include "mstypes.h"
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#include "msctypes.h"
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#include "mserverprotocol.h"
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#include "cusbmassstoragecontroller.h"
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#include "cmassstoragefilesystem.h"
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#include "cmassstoragemountcb.h"
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#include "debug.h"
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#include "massstorage.h"
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_LIT(KMsFsyName, "MassStorageFileSystem");
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_LIT(KMsThreadName, "MassStorageThread");
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_LIT(KMsDeadThreadName, "MassStorageDeadThread");
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_LIT(KMsFsysSemName, "MassStorageSemaphore");
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LOCAL_D const TInt KMsFsyMajorVersionNumber=1;
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LOCAL_D const TInt KMsFsyMinorVersionNumber=0;
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CMassStorageFileSystem::CMassStorageFileSystem()
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{
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}
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CMassStorageFileSystem::~CMassStorageFileSystem()
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{
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//Kill the controller thread if it exists
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delete iMassStorageController;
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iMediaChangedStatusList.Close();
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RThread thread;
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TInt err = thread.Open(KMsThreadName);
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if (err == KErrNone)
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{
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thread.Kill(1); //Parameter is irrelevant
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}
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thread.Close();
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iDriveMap.Close();
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}
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CMassStorageFileSystem* CMassStorageFileSystem::NewL()
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{
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CMassStorageFileSystem* self = new (ELeave) CMassStorageFileSystem();
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CleanupStack::PushL(self);
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self->ConstructL();
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CleanupStack::Pop(self);
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return self;
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}
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void CMassStorageFileSystem::ConstructL()
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{
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}
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/**
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Set the file system version and name
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@return Any of the standard Symbian error codes.
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*/
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TInt CMassStorageFileSystem::Install()
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{
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iVersion=TVersion(KMsFsyMajorVersionNumber, KMsFsyMinorVersionNumber, KF32BuildVersionNumber);
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TInt err = SetName(&KMsFsyName);
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return err;
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}
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TInt CMassStorageFileSystem::Remove()
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{
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TInt err = KErrNone;
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if (iInstalled)
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{
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// Try connecting to the server to send a shutdown message.
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// - If the class controller has a session in use, this will return KErrInUse
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RUsbMassStorage usbMs;
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err = usbMs.Connect();
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if(err == KErrNone)
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{
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err = usbMs.Shutdown();
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usbMs.Close();
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if(err == KErrNone)
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{
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User::WaitForRequest(iThreadStat);
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err = iThreadStat.Int();
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}
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else
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{
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__PRINT1(_L("CMassStorageFileSystem::Remove Shutdown Error %d\n"),err);
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}
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}
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else
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{
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__PRINT1(_L("CMassStorageFileSystem::Remove Connect Error %d\n"),err);
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}
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}
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return(err);
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}
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/**
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Creates a new Mass Storage mount object.
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@return A new CMassStorageMountCB
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@leave KErrNotReady if the Mass Storage controller is not running.
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*/
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CMountCB* CMassStorageFileSystem::NewMountL() const
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{
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if (!iRunning)
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{
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User::Leave(KErrNotReady);
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}
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return CMassStorageMountCB::NewL(iDriveMap);
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}
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/**
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Sets the media attributes and type in the aInfo parameter to those of the specified drive.
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@param anInfo TDriveInfo object to store the drive information.
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@param aDriveNumber The number of the drive to get the information from.
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*/
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void CMassStorageFileSystem::DriveInfo(TDriveInfo& aInfo, TInt aDriveNumber) const
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{
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TLocalDriveCapsV2Buf caps;
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if (!IsValidLocalDriveMapping(aDriveNumber))
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{
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return;
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}
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GetLocalDrive(aDriveNumber).Caps(caps);
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aInfo.iMediaAtt=caps().iMediaAtt;
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aInfo.iType = ::EMediaNotPresent; // Media is not available to the file system
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aInfo.iDriveAtt=caps().iDriveAtt;
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}
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/**
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Returns a reference to the Mass Storage controller.
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@return Reference to the Mass Storage controller.
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*/
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CUsbMassStorageController& CMassStorageFileSystem::Controller()
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{
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return *iMassStorageController;
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}
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/**
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Fill iMsDrives with a mapping of lun->drive number for supported mass storage drives
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*/
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TInt CMassStorageFileSystem::EnumerateMsDrivesL()
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{
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iDriveMap.Reset();
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TInt driveCount = 0;
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TLocalDriveCapsV2Buf caps;
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for (TInt i = EDriveC; i < KMaxDrives; i++)
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{
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caps.FillZ();
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if (IsValidLocalDriveMapping(i))
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{
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TInt err = GetLocalDrive(i).Caps(caps);
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TInt locDrvNum = DriveNumberToLocalDriveNumber(i);
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__PRINT2(_L("Caps: err=%d, att=%d\n"), err, caps().iDriveAtt);
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TBool isRemovable = err==KErrNotReady || (caps().iDriveAtt & KDriveAttRemovable);
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__PRINT2(_L("EnumerateMsDrives: Drive %c: is %sremovable\n"),
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'A'+i-EDriveA,
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isRemovable?_S(""):_S("NOT "));
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if (isRemovable)
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{
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//
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// STF: Connect to the local drive here. This gives us the media changed flag, and
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// our own TBusLocalDrive object for use by the proxy drive and controller.
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//
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TMediaChangedStatus mediaChanged;
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iMediaChangedStatusList.AppendL(mediaChanged);
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TBool& mediaChangedRef = iMediaChangedStatusList[driveCount].iMediaChanged;
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TInt err = iMediaChangedStatusList[driveCount].iLocalDrive.Connect(locDrvNum, mediaChangedRef);
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if (err == KErrNone)
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{
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iDriveMap.Append(static_cast <TDriveNumber>(i));
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}
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driveCount++;
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}
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}
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}
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__PRINT1(_L("EnumerateMsDrives Out, %d MS drives found\n"), driveCount);
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return driveCount;
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}
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TBool CMassStorageFileSystem::IsExtensionSupported() const
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{
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return ETrue;
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}
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/**
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Creates a TrapCleanup and ActiveScheduler and initializes the Mass Storage controller.
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Start the ActiveScheduler.
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@return Any of the standard Symbian error codes.
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*/
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TInt CMassStorageFileSystem::InitThread()
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{
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//Give the thread a name so we can kill it later
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User::RenameThread(KMsThreadName);
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CTrapCleanup* cleanup = CTrapCleanup::New();
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if (cleanup == NULL)
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{
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return KErrNoMemory;
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}
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TRAPD(err, InitThreadL());
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delete cleanup;
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__PRINT1(_L("CMassStorageFileSystem::InitThread Out, error=%d\n"), err);
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return err;
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}
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TInt CMassStorageFileSystem::InitThreadL()
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{
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RSemaphore gSemThreadReady;
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gSemThreadReady.OpenGlobal(KMsFsysSemName);
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// Determine which drives are available for Mass Storage.
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// (this also creates a local TBusLocalDrive for use by the drive controller)
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EnumerateMsDrivesL();
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CActiveScheduler* sched = new (ELeave) CActiveScheduler;
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if (sched == NULL)
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{
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gSemThreadReady.Signal();
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User::Leave(KErrNoMemory);
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}
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CleanupStack::PushL(sched);
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CActiveScheduler::Install(sched);
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iMassStorageController = CUsbMassStorageController::NewL();
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if (iMassStorageController == NULL)
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{
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gSemThreadReady.Signal();
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User::Leave(KErrNoMemory);
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}
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__PRINT(_L("CMassStorageFileSystem::InitThread: Creating Mass Storage Controller\n"));
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TRAPD(err, iMassStorageController->CreateL(iDriveMap));
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if (err != KErrNone)
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{
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gSemThreadReady.Signal();
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CActiveScheduler::Install(NULL);
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User::Leave(err);
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}
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CleanupStack::Pop(sched);
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iRunning = ETrue;
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gSemThreadReady.Signal();
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gSemThreadReady.Close();
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CActiveScheduler::Start();
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//========= stop thread ================
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delete iMassStorageController;
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iMassStorageController = NULL;
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for (TInt i=0; i < iMediaChangedStatusList.Count(); i++)
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{
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iMediaChangedStatusList[i].iLocalDrive.Disconnect();
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}
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iMediaChangedStatusList.Reset();
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delete sched;
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iRunning = EFalse;
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return KErrNone;
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}
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/**
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Not supported in Mass Storage file system.
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@leave KErrNotReady
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*/
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CFileCB* CMassStorageFileSystem::NewFileL() const
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{
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User::Leave(KErrNotReady);
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return NULL;
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}
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/**
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Not supported in Mass Storage file system.
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@leave KErrNotReady
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*/
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CDirCB* CMassStorageFileSystem::NewDirL() const
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{
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User::Leave(KErrNotReady);
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return NULL;
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}
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/**
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Not supported in Mass Storage file system.
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@leave KErrNotReady
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*/
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CFormatCB* CMassStorageFileSystem::NewFormatL() const
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{
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User::Leave(KErrNotReady);
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return NULL;
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}
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/**
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Not supported in Mass Storage file system.
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@return KErrNotSupported
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*/
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TInt CMassStorageFileSystem::DefaultPath(TDes& /*aPath*/) const
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{
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return KErrNotSupported;
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}
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/**
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Not supported in Mass Storage file system.
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@return KErrNotSupported
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*/
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TInt CMassStorageFileSystem::DriveList(TDriveList& /*aList*/) const
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return KErrNotSupported;
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}
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/**
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Thread entry point.
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*/
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LOCAL_C TInt MsInitThreadFn(TAny* aPtr)
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{
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User::SetCritical(User::ESystemCritical);
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((CMassStorageFileSystem*)aPtr)->InitThread();
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//Rename the thread so we can create a new one with the same original name later
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User::RenameThread(KMsDeadThreadName);
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return KErrNone;
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}
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/**
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Standard entry point for file systems.
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Creates a new file system object and starts a new thread for the Mass Storage controller.
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*/
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extern "C" EXPORT_C CFileSystem* CreateFileSystem()
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{
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__PRINT(_L("CMassStorageFileSystem::CreateFileSystem In\n"));
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RSemaphore gSemThreadReady;
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TInt err = gSemThreadReady.CreateGlobal(KMsFsysSemName, 0);
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377 |
if (err != KErrNone)
|
|
|
378 |
{
|
|
|
379 |
__PRINT1(_L("CMassStorageFileSystem::CreateFileSystem Out Semaphore Error %d\n"),err);
|
|
|
380 |
return NULL;
|
|
|
381 |
}
|
|
0
|
382 |
|
|
300
|
383 |
CFileSystem* msFsys = NULL;
|
|
|
384 |
TRAP(err, msFsys = CMassStorageFileSystem::NewL());
|
|
|
385 |
if (err != KErrNone)
|
|
|
386 |
{
|
|
|
387 |
__PRINT1(_L("CMassStorageFileSystem::CreateFileSystem Out MSFS Error %d\n"),err);
|
|
|
388 |
gSemThreadReady.Close();
|
|
|
389 |
return NULL;
|
|
|
390 |
}
|
|
0
|
391 |
|
|
300
|
392 |
RThread msThread;
|
|
|
393 |
__PRINT(_L("CMassStorageFileSystem::CreateFileSystem: Creating Mass Storage thread\n"));
|
|
|
394 |
err = msThread.Create(KMsThreadName, MsInitThreadFn, KDefaultStackSize, NULL, msFsys);
|
|
|
395 |
if (err != KErrNone)
|
|
|
396 |
{
|
|
|
397 |
__PRINT1(_L("CMassStorageFileSystem::CreateFileSystem Out Thread Error %d\n"),err);
|
|
|
398 |
gSemThreadReady.Close();
|
|
|
399 |
return msFsys;
|
|
|
400 |
}
|
|
|
401 |
((CMassStorageFileSystem*)msFsys)->iInstalled=ETrue;
|
|
0
|
402 |
|
|
|
403 |
|
|
300
|
404 |
msThread.Logon(((CMassStorageFileSystem*)msFsys)->iThreadStat);
|
|
|
405 |
msThread.Resume();
|
|
|
406 |
gSemThreadReady.Wait();
|
|
|
407 |
gSemThreadReady.Close();
|
|
|
408 |
msThread.Close();
|
|
0
|
409 |
|
|
300
|
410 |
__PRINT(_L("CMassStorageFileSystem::CreateFileSystem Out Clean\n"));
|
|
0
|
411 |
|
|
300
|
412 |
return msFsys;
|
|
|
413 |
}
|