| author | hgs |
| Tue, 26 Oct 2010 12:49:20 +0100 | |
| changeset 297 | b2826f67641f |
| parent 271 | dc268b18d709 |
| permissions | -rw-r--r-- |
| 124 | 1 |
// Copyright (c) 2008-2010 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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// |
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/** |
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@file |
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@internalTechnology |
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*/ |
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#include <e32base.h> |
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#include <d32usbdi.h> |
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#include <d32usbtransfers.h> |
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#include "msctypes.h" |
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#include "shared.h" |
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#include "msgservice.h" |
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#include "botmsctypes.h" |
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#include "mprotocol.h" |
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#include "mtransport.h" |
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#include "cbulkonlytransport.h" |
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#include "cusbhostmslogicalunit.h" |
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#include "cusbhostmsdevice.h" |
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#include "cusbmssuspendresume.h" |
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#include "OstTraceDefinitions.h" |
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#ifdef OST_TRACE_COMPILER_IN_USE |
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#include "cusbhostmsdeviceTraces.h" |
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#endif |
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CUsbHostMsDevice* CUsbHostMsDevice::NewL(THostMassStorageConfig& aConfig) |
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{
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CUsbHostMsDevice* r = new (ELeave) CUsbHostMsDevice(aConfig); |
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CleanupStack::PushL(r); |
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r->ConstructL(); |
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CleanupStack::Pop(); |
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return r; |
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} |
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void CUsbHostMsDevice::ConstructL() |
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{
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iTimer = CPeriodic::NewL(CActive::EPriorityStandard); |
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iTimerRunning = EFalse; |
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} |
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CUsbHostMsDevice::CUsbHostMsDevice(THostMassStorageConfig& aConfig) |
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: iConfig(aConfig), |
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iState(EReady) |
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{
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} |
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CUsbHostMsDevice::~CUsbHostMsDevice() |
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{
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delete iTransport; |
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delete iDeviceSuspendResume; |
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if (iTimer && iTimerRunning) |
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{
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iTimer->Cancel(); |
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} |
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delete iTimer; |
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} |
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MTransport* CUsbHostMsDevice::InitialiseTransportL(TTransportType aTransportId) |
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{
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switch(aTransportId) |
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{
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case BulkOnlyTransport: |
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return CBulkOnlyTransport::NewL(iConfig.iInterfaceToken); |
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default: |
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// Panic; |
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OstTrace0(TRACE_SHOSTMASSSTORAGE_HOST, CUSBHOSTMSDEVICE_10, |
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"Unsupported Transport class requested"); |
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User::Leave(KErrNotSupported); |
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return NULL; |
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} |
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} |
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void CUsbHostMsDevice::InitialiseL(const RMessage2& aMessage) |
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{
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iTransport = InitialiseTransportL((TTransportType) iConfig.iTransportId); |
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TRAPD(r, iDeviceSuspendResume = CUsbMsIfaceSuspendResume::NewL(iTransport, this)); |
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if(r != KErrNone) |
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{
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delete iTransport; |
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User::Leave(r); |
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} |
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iTransport->GetMaxLun(&iMaxLun, aMessage); |
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} |
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void CUsbHostMsDevice::UnInitialiseL() |
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{
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StopTimer(); |
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iLuList.RemoveAllLuL(); |
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} |
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TInt CUsbHostMsDevice::AddLunL(TLun aLun) |
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{
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TInt r = KErrNone; |
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StartTimer(); |
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CUsbHostMsLogicalUnit* lu = CUsbHostMsLogicalUnit::NewL(aLun); |
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CleanupStack::PushL(lu); |
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TRAP(r, lu->InitialiseProtocolL(aLun, iConfig, *iTransport)); |
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if (r == KErrNone) |
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{
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TRAP(r, iLuList.AddLuL(lu)); |
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} |
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if (r != KErrNone) |
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{
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CleanupStack::PopAndDestroy(lu); |
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} |
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else |
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{
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CleanupStack::Pop(lu); |
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} |
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return r; |
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} |
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void CUsbHostMsDevice::RemoveLunL(TLun aLun) |
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{
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if(iLuList.Count() <= 1) |
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StopTimer(); |
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iLuList.RemoveLuL(aLun); |
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} |
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void CUsbHostMsDevice::InitLunL(TLun aLun) |
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{
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CUsbHostMsLogicalUnit& lu = SetLunL(aLun); |
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lu.InitL(); |
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} |
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void CUsbHostMsDevice::SuspendLunL(TLun aLun) |
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{
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if (IsSuspended()) |
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{
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return; |
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} |
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iLuList.GetLuL(aLun).ReadyToSuspend(); |
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// check whether all the luns are suspended, if so then request usb |
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// interface suspension to the transport layer |
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for (TInt i = 0; i < iLuList.Count(); i++) |
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{
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CUsbHostMsLogicalUnit& lu = iLuList.GetLu(i); |
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if (!lu.IsReadyToSuspend() && lu.IsConnected()) |
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return; |
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} |
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for (TInt i = 0; i < iLuList.Count(); i++) |
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{
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CUsbHostMsLogicalUnit& lu = iLuList.GetLu(i); |
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SetLunL(lu); |
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lu.SuspendL(); |
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} |
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StopTimer(); |
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iDeviceSuspendResume->Suspend(); |
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iState = ESuspended; |
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} |
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56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
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void CUsbHostMsDevice::Resume(TRequestStatus& aStatus) |
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{
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if (iState == ESuspended) |
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{
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StartTimer(); |
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iDeviceSuspendResume->Resume(aStatus); |
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} |
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} |
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TLun CUsbHostMsDevice::GetAndSetLunL(const RMessage2& aMessage) |
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{
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// Subssessions need a positive value to store in the handles. We represent Luns as LunId+1 |
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// We represent LunId in MSC from 0 to MaxLun-1 as represented in BOT so subtract 1 from the Id |
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// received from RMessage |
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TInt lun = aMessage.Int3() - 1; |
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if (lun < 0) |
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{
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User::Leave(KErrArgument); |
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} |
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SetLunL(static_cast<TLun>(lun)); |
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return static_cast<TLun>(lun); |
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} |
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CUsbHostMsLogicalUnit& CUsbHostMsDevice::GetLuL(TInt aLunNum) const |
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{
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return iLuList.GetLuL(aLunNum); |
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} |
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void CUsbHostMsDevice::SetLunL(CUsbHostMsLogicalUnit& aLu) |
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{
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TLun lun = aLu.Lun(); |
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if (lun <= iMaxLun) |
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{
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OstTrace1(TRACE_SHOSTMASSSTORAGE_HOST, CUSBHOSTMSDEVICE_20, |
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"SetLun %d", lun); |
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iTransport->SetLun(lun); |
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if (aLu.IsReadyToSuspend()) |
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{
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aLu.CancelReadyToSuspend(); |
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} |
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} |
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} |
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CUsbHostMsLogicalUnit& CUsbHostMsDevice::SetLunL(TLun aLun) |
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{
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CUsbHostMsLogicalUnit& lu = iLuList.GetLuL(aLun); |
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SetLunL(lu); |
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return lu; |
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} |
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/** |
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Starts timer to periodically check LUN. If the timer is not yet running then |
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start it. |
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*/ |
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void CUsbHostMsDevice::StartTimer() |
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{
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if (!iTimerRunning) |
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{
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// Period of the LUN Ready check |
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const TTimeIntervalMicroSeconds32 KInterval = iConfig.iStatusPollingInterval * 1000 * 1000; |
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TCallBack callback(TimerCallback, this); |
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OstTrace0(TRACE_SHOSTMASSSTORAGE_HOST, CUSBHOSTMSDEVICE_21, |
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"Starting timer"); |
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iTimer->Start(KInterval, KInterval, callback); |
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iTimerRunning = ETrue; |
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} |
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} |
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/** |
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Ensure that the Timer is stopped |
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*/ |
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void CUsbHostMsDevice::StopTimer() |
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{
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if (iTimer && iTimerRunning) |
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{
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OstTrace0(TRACE_SHOSTMASSSTORAGE_HOST, CUSBHOSTMSDEVICE_30, |
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"Stopping timer"); |
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if (iTimer->IsActive()) |
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{
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iTimer->Cancel(); |
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} |
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iTimerRunning = EFalse; |
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} |
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} |
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/** |
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A static wrapper for the DoLunReadyCheckEvent member function for use as a timer |
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callback function. |
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@param obj 'this' pointer |
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@return not used in CPeriodic callback (see TCallback) |
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*/ |
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TInt CUsbHostMsDevice::TimerCallback(TAny* obj) |
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{
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CUsbHostMsDevice* device = static_cast<CUsbHostMsDevice*>(obj); |
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TRAPD(err, device->DoLunReadyCheckEventL()); |
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return err; |
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} |
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void CUsbHostMsDevice::DoLunReadyCheckEventL() |
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{
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TInt err; |
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for (TInt i = 0; i < iLuList.Count(); i++) |
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{
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CUsbHostMsLogicalUnit& lu = iLuList.GetLu(i); |
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SetLunL(lu); |
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TRAP(err, lu.DoLunReadyCheckL()); |
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} |
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} |
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void CUsbHostMsDevice::DoHandleRemoteWakeupL() |
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{
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DoResumeLogicalUnitsL(); |
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DoLunReadyCheckEventL(); // For remote wakeup we do not wait for timer to expire |
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// check whether all the luns are suspended, if so then request usb |
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// interface suspension to the transport layer |
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for (TInt i = 0; i < iLuList.Count(); i++) |
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{
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CUsbHostMsLogicalUnit& lu = iLuList.GetLu(i); |
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// Has any of the logical units have got its state changed? |
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if ( (lu.IsReadyToSuspend() && !lu.IsConnected()) || |
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(!lu.IsReadyToSuspend() && lu.IsConnected()) ) |
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{
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StartTimer(); // Now start the timer |
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return; |
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} |
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} |
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for (TInt i = 0; i < iLuList.Count(); i++) |
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{
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CUsbHostMsLogicalUnit& lu = iLuList.GetLu(i); |
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SetLunL(lu); |
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lu.SuspendL(); |
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} |
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iDeviceSuspendResume->Suspend(); |
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iState = ESuspended; |
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} |
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void CUsbHostMsDevice::DoResumeLogicalUnitsL() |
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{
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for (TInt i = 0; i < iLuList.Count(); i++) |
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{
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CUsbHostMsLogicalUnit& lu = iLuList.GetLu(i); |
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SetLunL(lu); |
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lu.ResumeL(); |
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} |
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} |
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void CUsbHostMsDevice::ResumeCompletedL() |
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{
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iState = EReady; |
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DoResumeLogicalUnitsL(); |
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} |