author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 11 May 2010 17:28:22 +0300 | |
branch | RCL_3 |
changeset 26 | c734af59ce98 |
parent 4 | 56f325a607ea |
permissions | -rw-r--r-- |
0 | 1 |
// Copyright (c) 2008-2009 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/camerasc/cameraldd.cpp |
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// |
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// |
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#include <drivers/camerasc.h> |
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#include <kernel/kern_priv.h> |
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#include <kernel/cache.h> |
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//#define __KTRACE_CAM(s) s; |
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#define __KTRACE_CAM(s) |
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#define DISCARD_COMPLETED_TO_AVOID_OVERFLOW |
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static const char KCameraLddPanic[]="CameraSc LDD"; |
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/** |
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Standard export function for LDDs. This creates a DLogicalDevice derived object, |
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in this case, DSoundScLddFactory. |
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*/ |
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DECLARE_STANDARD_LDD() |
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{ |
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return new DCameraScLddFactory; |
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} |
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/** |
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Constructor for the camera driver factory class. |
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*/ |
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DCameraScLddFactory::DCameraScLddFactory() |
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{ |
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// iUnitsOpenMask=0; |
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__KTRACE_CAM(Kern::Printf(">DCameraScLddFactory::DCameraScLddFactory")); |
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// Set version number for this device. |
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iVersion=RDevCameraSc::VersionRequired(); |
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// Indicate that units / PDD are supported. |
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iParseMask=KDeviceAllowUnit|KDeviceAllowPhysicalDevice; |
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// Leave the units decision to the PDD |
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iUnitsMask=0xffffffff; |
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} |
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/** |
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Second stage constructor for the camera driver factory class. |
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This must at least set a name for the driver object. |
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@return KErrNone if successful, otherwise one of the other system wide error codes. |
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*/ |
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TInt DCameraScLddFactory::Install() |
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{ |
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return(SetName(&KDevCameraScName)); |
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} |
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/** |
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Return the 'capabilities' of the camera driver in general. |
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Called in the response to an RDevice::GetCaps() request. |
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@param aDes A user-side descriptor to write the capabilities information into. |
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*/ |
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void DCameraScLddFactory::GetCaps(TDes8 &aDes) const |
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{ |
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// Create a capabilities object |
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TCapsDevCameraV01 caps; |
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caps.iVersion=iVersion; |
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// Write it back to user memory |
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Kern::InfoCopy(aDes,(TUint8*)&caps,sizeof(caps)); |
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} |
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/** |
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Called by the kernel's device driver framework to create a logical channel. |
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This is called in the context of the client thread which requested the creation of a logical |
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channel - through a call to RBusLogicalChannel::DoCreate(). |
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The thread is in a critical section. |
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@param aChannel Set by this function to point to the created logical channel. |
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@return KErrNone if successful, otherwise one of the other system wide error codes. |
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*/ |
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TInt DCameraScLddFactory::Create(DLogicalChannelBase*& aChannel) |
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{ |
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__KTRACE_CAM(Kern::Printf(">DCameraScLddFactory::Create")); |
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aChannel=new DCameraScLdd; |
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if (!aChannel) |
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return(KErrNoMemory); |
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return(KErrNone); |
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} |
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/** |
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Check whether a channel has is currently open on the specified unit. |
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@param aUnit The number of the unit to be checked. |
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@return ETrue if a channel is open on the specified channel, EFalse otherwise. |
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@pre The unit info. mutex must be held. |
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*/ |
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TBool DCameraScLddFactory::IsUnitOpen(TInt aUnit) |
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{ |
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return(iUnitsOpenMask&(1<<aUnit)); |
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} |
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/** |
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Attempt to change the state of the channel open status for a particular channel. |
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@param aUnit The number of the unit to be updated. |
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@param aIsOpenSetting The required new state for the channel open status: either ETrue to set the status to open or |
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EFalse to set the status to closed. |
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@return KErrNone if the status was updated successfully; |
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KErrInUse if an attempt has been made to set the channnel status to open while it is already open. |
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*/ |
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TInt DCameraScLddFactory::SetUnitOpen(TInt aUnit,TBool aIsOpenSetting) |
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{ |
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NKern::FMWait(&iUnitInfoMutex); // Acquire the unit info. mutex. |
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// Fail a request to open an channel that is already open |
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if (aIsOpenSetting && IsUnitOpen(aUnit)) |
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{ |
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NKern::FMSignal(&iUnitInfoMutex); // Release the unit info. mutex. |
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return(KErrInUse); |
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} |
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// Update the open status as requested |
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if (aIsOpenSetting) |
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iUnitsOpenMask|=(1<<aUnit); |
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else |
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iUnitsOpenMask&=~(1<<aUnit); |
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NKern::FMSignal(&iUnitInfoMutex); // Release the unit info. mutex. |
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return(KErrNone); |
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} |
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/** |
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Constructor for the camera driver logical channel. |
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*/ |
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DCameraScLdd::DCameraScLdd() |
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: iRequestQueue(&iMutex), |
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iRestartDfc(DCameraScLdd::RestartDfc,this,5), |
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iPowerDownDfc(DCameraScLdd::PowerDownDfc,this,3), |
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iPowerUpDfc(DCameraScLdd::PowerUpDfc,this,3) |
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{ |
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iState=EOpen; |
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// iCaptureMode=ECaptureModeImage; |
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// iFrameHeight=0; |
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// iFrameWidth=0; |
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// iBufManager=NULL; |
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// iPowerHandler=NULL; |
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// iImageGatherCount=0; |
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__KTRACE_CAM(Kern::Printf(">DCameraScLdd::DCameraScLdd")); |
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iUnit=-1; // Invalid unit number |
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// Get pointer to client thread's DThread object |
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iOwningThread=&Kern::CurrentThread(); |
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// Open a reference on client thread so it's control block can't dissapear until |
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// this driver has finished with it. Note, this call to Open() can't fail since |
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// it is the thread we are currently running in |
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iOwningThread->Open(); |
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} |
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/** |
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Destructor for the camera driver logical channel. |
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This is called in the context of the client thread once a 'ECloseMsg' message has been |
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sent to the device driver DFC thread. |
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*/ |
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DCameraScLdd::~DCameraScLdd() |
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{ |
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__KTRACE_CAM(Kern::Printf(">DCameraScLdd::~DCameraScLdd")); |
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TInt captureMode; |
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// Remove and delete the power handler. |
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if (iPowerHandler) |
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{ |
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iPowerHandler->Remove(); |
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delete iPowerHandler; |
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} |
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if (iCaptureModeConfig) |
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{ |
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// Delete any buffers and shared chunk we created. |
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for (captureMode=0; captureMode < ECamCaptureModeMax; captureMode++) |
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{ |
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if (iCaptureModeConfig[captureMode].iBufManager) |
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delete iCaptureModeConfig[captureMode].iBufManager; |
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} |
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// Delete the buffer config. info. structure. |
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for (captureMode=0; captureMode < ECamCaptureModeMax; captureMode++) |
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{ |
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if (iCaptureModeConfig[captureMode].iBufConfig) |
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Kern::Free(iCaptureModeConfig[captureMode].iBufConfig); |
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} |
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if (iCaptureModeConfig) |
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delete[] iCaptureModeConfig; |
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} |
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// Close our reference on the client thread |
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Kern::SafeClose((DObject*&)iOwningThread,NULL); |
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// Clear the 'units open mask' in the LDD factory. |
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if (iUnit>=0) |
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((DCameraScLddFactory*)iDevice)->SetUnitOpen(iUnit,EFalse); |
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} |
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/** |
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Second stage constructor for the camera driver - called by the kernel's device driver framework. |
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This is called in the context of the client thread which requested the creation of a logical channel |
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(e.g. through a call to RBusLogicalChannel::DoCreate()). |
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The thread is in a critical section. |
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@param aUnit The unit argument supplied by the client. This is checked by the PDD and not used here. |
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@param aInfo The info argument supplied by the client. Always NULL in this case. |
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@param aVer The version argument supplied by the client. |
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@return KErrNone if successful, otherwise one of the other system wide error codes. |
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*/ |
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TInt DCameraScLdd::DoCreate(TInt aUnit, const TDesC8* /*aInfo*/, const TVersion& aVer) |
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{ |
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__KTRACE_CAM(Kern::Printf(">DCameraScLdd::DoCreate")); |
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// Check the client has EMultimediaDD capability. |
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if (!Kern::CurrentThreadHasCapability(ECapabilityMultimediaDD,__PLATSEC_DIAGNOSTIC_STRING("Checked by ECAMERA.LDD (Camera driver)"))) |
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return(KErrPermissionDenied); |
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// Check that the camera driver version specified by the client is compatible. |
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if (!Kern::QueryVersionSupported(RDevCameraSc::VersionRequired(),aVer)) |
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return(KErrNotSupported); |
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// Check that a channel hasn't already been opened on this unit. |
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TInt r=((DCameraScLddFactory*)iDevice)->SetUnitOpen(aUnit,ETrue); // Try to update 'units open mask' in the LDD factory. |
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if (r!=KErrNone) |
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return(r); |
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iUnit=aUnit; |
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// Create the power handler |
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iPowerHandler=new DCameraScPowerHandler(this); |
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if (!iPowerHandler) |
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return(KErrNoMemory); |
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iPowerHandler->Add(); |
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// Create the pending capture request list |
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r=iRequestQueue.Create(iOwningThread); |
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if (r!=KErrNone) |
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return(r); |
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// Initialise the PDD |
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((DCameraScPdd*)iPdd)->iLdd=this; |
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// Setup the default camera config |
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iCaptureMode=ECamCaptureModeImage; |
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iCaptureModeConfig = new TCaptureModeConfig[ECamCaptureModeMax]; |
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if(!iCaptureModeConfig) |
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return KErrNoMemory; |
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TInt capsSize = Pdd()->CapsSize(); |
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TInt captureMode; |
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TAny* capsBuf; |
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capsBuf = Kern::Alloc(capsSize); |
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if(!capsBuf) |
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return KErrNoMemory; |
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// Query the driver for its capabilities and set a default pixel format |
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// and frame size for each available capture mode. |
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TPtr8 capsPtr( (TUint8*)capsBuf, capsSize, capsSize ); |
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Pdd()->Caps(capsPtr); |
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TCameraCapsV02* caps = (TCameraCapsV02*) capsPtr.Ptr(); |
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SDevCamPixelFormat* pixelFormat = (SDevCamPixelFormat*) (caps + 1); |
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SDevCamFrameSize* frameSize; |
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TAny* frameSizeCapsBuf=0; |
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TPtr8 frameSizeCapsPtr(0,0,0); |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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// Set the cache to hold the default dynamic attribute values. |
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iBrightnessValue = caps->iDynamicRange[ECamAttributeBrightness].iDefault; |
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iContrastValue = caps->iDynamicRange[ECamAttributeContrast].iDefault; |
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iColorEffectValue = caps->iDynamicRange[ECamAttributeColorEffect].iDefault; |
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for (captureMode=0; captureMode < ECamCaptureModeMax; captureMode++) |
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{ |
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if ((captureMode==ECamCaptureModeImage) && (caps->iNumImagePixelFormats==0)) |
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continue; |
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if ((captureMode==ECamCaptureModeVideo) && (caps->iNumVideoPixelFormats==0)) |
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continue; |
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if ((captureMode==ECamCaptureModeViewFinder) && (caps->iNumViewFinderPixelFormats==0)) |
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continue; |
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iCaptureModeConfig[captureMode].iCamConfig.iPixelFormat=*pixelFormat; |
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frameSizeCapsBuf = Kern::Alloc(pixelFormat->iNumFrameSizes*sizeof(SDevCamFrameSize)); |
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new (&frameSizeCapsPtr) TPtr8((TUint8*)frameSizeCapsBuf, pixelFormat->iNumFrameSizes*sizeof(SDevCamFrameSize), pixelFormat->iNumFrameSizes*sizeof(SDevCamFrameSize)); |
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r=Pdd()->FrameSizeCaps((TDevCamCaptureMode)captureMode, pixelFormat->iPixelFormat, frameSizeCapsPtr); |
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if(r!=KErrNone) |
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{ |
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Kern::Free(frameSizeCapsBuf); |
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return r; |
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} |
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frameSize=(SDevCamFrameSize*) frameSizeCapsPtr.Ptr(); |
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iCaptureModeConfig[captureMode].iCamConfig.iFrameSize = *frameSize; |
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iCaptureModeConfig[captureMode].iCamConfig.iFrameRate = frameSize->iMinFrameRate; |
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Kern::Free(frameSizeCapsBuf); |
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iCaptureModeConfig[captureMode].iCamConfig.iFlashMode = ECamFlashNone; |
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iCaptureModeConfig[captureMode].iCamConfig.iExposureMode = ECamExposureAuto; |
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iCaptureModeConfig[captureMode].iCamConfig.iWhiteBalanceMode = ECamWBAuto; |
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iCaptureModeConfig[captureMode].iCamConfig.iZoom = 0; |
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iCaptureModeConfig[captureMode].iCamConfig.iPixelWidthInBytes = 0; |
0 | 317 |
} |
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Kern::Free(capsBuf); |
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// Setup the default buffer config. |
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r=ReAllocBufferConfigInfo(0); // Zeros the structure |
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if (r!=KErrNone) |
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return(r); |
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for (captureMode=0; captureMode < ECamCaptureModeMax; captureMode++) |
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{ |
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iCaptureModeConfig[captureMode].iBufConfig->iNumBuffers=KDefaultNumClientBuffers; |
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} |
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// Set up the correct DFC queue and enable the reception of client messages. |
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TDfcQue* dfcq=((DCameraScPdd*)iPdd)->DfcQ(aUnit); |
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SetDfcQ(dfcq); |
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iRestartDfc.SetDfcQ(dfcq); |
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iPowerDownDfc.SetDfcQ(dfcq); |
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iPowerUpDfc.SetDfcQ(dfcq); |
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iMsgQ.Receive(); |
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__KTRACE_CAM(Kern::Printf("<DCameraScLdd::DoCreate")); |
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return(KErrNone); |
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} |
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/** |
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Shutdown the camera device. |
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Terminate all device activity and power down the hardware. |
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*/ |
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void DCameraScLdd::Shutdown() |
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{ |
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__KTRACE_CAM(Kern::Printf(">DCameraScLdd::Shutdown")); |
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iState=EOpen; |
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// Power down the hardware |
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Pdd()->PowerDown(); |
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// Cancel any requests that we may be handling |
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DoCancel(RDevCameraSc::EAllRequests); |
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// Make sure DFCs are not queued. |
|
358 |
iRestartDfc.Cancel(); |
|
359 |
iPowerDownDfc.Cancel(); |
|
360 |
iPowerUpDfc.Cancel(); |
|
361 |
} |
|
362 |
||
363 |
/** |
|
364 |
Notification to the driver that a handle to it has been requested by a user thread. |
|
365 |
The use of a camera driver channel is restricted here to a single thread (that has |
|
366 |
EMultimediaDD capability). |
|
367 |
@param aThread A pointer to thread which is requesting the handle. |
|
368 |
@param aType Whether the requested handle is thread or process relative. |
|
369 |
@return KErrNone, if the request is for a thread relative handle - originating from |
|
370 |
the same the thread that created the channel object; |
|
371 |
KErrAccessDenied, otherwise. |
|
372 |
*/ |
|
373 |
TInt DCameraScLdd::RequestUserHandle(DThread* aThread, TOwnerType aType) |
|
374 |
{ |
|
375 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::RequestUserHandle")); |
|
376 |
||
377 |
// Ensure that each channel can only be used by a single thread. |
|
378 |
if (aType!=EOwnerThread || aThread!=iOwningThread) |
|
379 |
return(KErrAccessDenied); |
|
380 |
return(KErrNone); |
|
381 |
} |
|
382 |
||
383 |
/** |
|
384 |
Process a request on this logical channel |
|
385 |
Called in the context of the client thread. |
|
386 |
@param aReqNo The request number: |
|
387 |
==KMaxTInt: a 'DoCancel' message; |
|
388 |
>=0: a 'DoControl' message with function number equal to value. |
|
389 |
<0: a 'DoRequest' message with function number equal to ~value. |
|
390 |
@param a1 The first request argument. For DoRequest(), this is a pointer to the TRequestStatus. |
|
391 |
@param a2 The second request argument. For DoRequest(), this is a pointer to the 2 actual TAny* arguments. |
|
392 |
@return The result of the request. This is ignored by device driver framework for DoRequest(). |
|
393 |
*/ |
|
394 |
TInt DCameraScLdd::Request(TInt aReqNo, TAny* a1, TAny* a2) |
|
395 |
{ |
|
396 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::Request(%d)",aReqNo)); |
|
397 |
TInt r; |
|
398 |
if (aReqNo<RDevCameraSc::EMsgControlMax && aReqNo>(~RDevCameraSc::EMsgRequestMax)) |
|
399 |
{ |
|
400 |
// Implement in the context of the kernel thread - prepare and issue a kernel message. |
|
401 |
r=DLogicalChannel::Request(aReqNo,a1,a2); |
|
402 |
} |
|
403 |
else |
|
404 |
{ |
|
405 |
// Implement in the context of the client thread. |
|
406 |
// Decode the message type and dispatch it to the relevent handler function. |
|
407 |
if ((TUint)aReqNo<(TUint)KMaxTInt) |
|
408 |
r=DoControl(aReqNo,a1,a2); // DoControl - process the request. |
|
409 |
||
410 |
else if (aReqNo==KMaxTInt) |
|
411 |
{ |
|
412 |
r=DoCancel((TInt)a1); // DoCancel - cancel the request. |
|
413 |
} |
|
414 |
||
415 |
else |
|
416 |
{ |
|
417 |
// DoRequest |
|
418 |
TInt func=~aReqNo; |
|
419 |
||
420 |
// NotifyNewImage() during image capture mode is another case which must be handled in the kernel thread. |
|
421 |
if (iCaptureMode==ECamCaptureModeImage && func==RDevCameraSc::ERequestNotifyNewImage) |
|
422 |
r=DLogicalChannel::Request(aReqNo,a1,a2); |
|
423 |
else |
|
424 |
{ |
|
425 |
// Read the arguments from the client thread and process the request. |
|
426 |
TAny* a[2]; |
|
427 |
kumemget32(a,a2,sizeof(a)); |
|
428 |
TRequestStatus* status=(TRequestStatus*)a1; |
|
429 |
r=DoRequest(func,status,a[0],a[1]); |
|
430 |
||
431 |
// Complete request if there was an error |
|
432 |
if (r!=KErrNone) |
|
433 |
Kern::RequestComplete(iOwningThread,status,r); |
|
434 |
r=KErrNone; |
|
435 |
} |
|
436 |
} |
|
437 |
} |
|
438 |
__KTRACE_CAM(Kern::Printf("<DCameraScLdd::Request - %d",r)); |
|
439 |
return(r); |
|
440 |
} |
|
441 |
||
442 |
/** |
|
443 |
Process a message for this logical channel. |
|
444 |
This function is called in the context of the DFC thread. |
|
445 |
@param aMsg The message to process. |
|
446 |
The iValue member of this distinguishes the message type: |
|
447 |
iValue==ECloseMsg, channel close message. |
|
448 |
iValue==KMaxTInt, a 'DoCancel' message. |
|
449 |
iValue>=0, a 'DoControl' message with function number equal to iValue. |
|
450 |
iValue<0, a 'DoRequest' message with function number equal to ~iValue. |
|
451 |
*/ |
|
452 |
void DCameraScLdd::HandleMsg(TMessageBase* aMsg) |
|
453 |
{ |
|
454 |
TThreadMessage& m=*(TThreadMessage*)aMsg; |
|
455 |
TInt id=m.iValue; |
|
456 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::HandleMsg(%d)",id)); |
|
457 |
||
458 |
// Decode the message type and dispatch it to the relevent handler function. |
|
459 |
if (id==(TInt)ECloseMsg) |
|
460 |
{ |
|
461 |
// Channel close. |
|
462 |
Shutdown(); |
|
463 |
m.Complete(KErrNone,EFalse); |
|
464 |
return; |
|
465 |
} |
|
466 |
else if (id<0) // The only DoRequest handled in the kernel thread is NotifyNewImage(ECamCaptureModeImage). |
|
467 |
{ |
|
468 |
// DoRequest |
|
469 |
TRequestStatus* pS=(TRequestStatus*)m.Ptr0(); |
|
470 |
TInt r=DoRequest(~id,pS,m.Ptr1(),m.Ptr2()); |
|
471 |
if (r!=KErrNone) |
|
472 |
Kern::RequestComplete(iOwningThread,pS,r); |
|
473 |
m.Complete(KErrNone,ETrue); |
|
474 |
} |
|
475 |
else |
|
476 |
{ |
|
477 |
// Must be DoControl (Cancel is handled in the client thread). |
|
478 |
TInt r=DoControl(id,m.Ptr0(),m.Ptr1()); |
|
479 |
m.Complete(r,ETrue); |
|
480 |
} |
|
481 |
} |
|
482 |
||
483 |
/** |
|
484 |
Process a synchronous 'DoControl' request. |
|
485 |
This function is called in the context of the DFC thread. |
|
486 |
@param aFunction The request number. |
|
487 |
@param a1 The first request argument. |
|
488 |
@param a2 The second request argument. |
|
489 |
@return KErrNone if successful, otherwise one of the other system wide error codes. |
|
490 |
*/ |
|
491 |
TInt DCameraScLdd::DoControl(TInt aFunction, TAny* a1, TAny* a2) |
|
492 |
{ |
|
493 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::DoControl(%d)",aFunction)); |
|
494 |
||
495 |
TInt r=KErrNotSupported; |
|
496 |
switch (aFunction) |
|
497 |
{ |
|
498 |
case RDevCameraSc::EControlCaps: |
|
499 |
{ |
|
500 |
r = GetSensorCaps(a1); |
|
501 |
break; |
|
502 |
} |
|
503 |
case RDevCameraSc::EControlSetCaptureMode: |
|
504 |
{ |
|
505 |
// Change the capture mode. |
|
506 |
r=SetCaptureMode((TInt)a1); |
|
507 |
break; |
|
508 |
} |
|
509 |
case RDevCameraSc::EControlSetCamConfig: |
|
510 |
{ |
|
511 |
// Set the new camera configuration. |
|
512 |
NKern::ThreadEnterCS(); |
|
513 |
r=SetCamConfig((TInt)a1, (const TDesC8*)a2); |
|
514 |
NKern::ThreadLeaveCS(); |
|
515 |
break; |
|
516 |
} |
|
517 |
case RDevCameraSc::EControlGetCamConfig: |
|
518 |
{ |
|
519 |
// Write the config to the client. |
|
520 |
TPtrC8 ptr((const TUint8*)&iCaptureModeConfig[(TInt)a1].iCamConfig,sizeof(iCaptureModeConfig[(TInt)a1].iCamConfig)); |
|
521 |
Kern::InfoCopy(*((TDes8*)a2),ptr); |
|
522 |
r=KErrNone; |
|
523 |
break; |
|
524 |
} |
|
525 |
case RDevCameraSc::EControlGetBufferConfig: |
|
526 |
if (iCaptureModeConfig[(TInt)a1].iBufConfig) |
|
527 |
{ |
|
528 |
// Write the buffer config to the client. |
|
529 |
TPtrC8 ptr((const TUint8*)&(*iCaptureModeConfig[(TInt)a1].iBufConfig),iCaptureModeConfig[(TInt)a1].iBufConfigSize); |
|
530 |
Kern::InfoCopy(*((TDes8*)a2),ptr); |
|
531 |
r=KErrNone; |
|
532 |
} |
|
533 |
break; |
|
534 |
case RDevCameraSc::EControlSetBufConfigChunkCreate: |
|
535 |
// Need to be in critical section while deleting an exisiting config and creating a new one |
|
536 |
NKern::ThreadEnterCS(); |
|
537 |
r=SetBufConfig((TInt)a1,(TInt)a2); |
|
538 |
NKern::ThreadLeaveCS(); |
|
539 |
break; |
|
540 |
case RDevCameraSc::EControlSetBufConfigChunkOpen: |
|
541 |
SSetBufConfigChunkOpenInfo info; |
|
542 |
r=Kern::ThreadRawRead(iOwningThread,a2,&info,sizeof(info)); |
|
543 |
if (r==KErrNone) |
|
544 |
{ |
|
545 |
// Need to be in critical section while deleting an exisiting config and creating a new one |
|
546 |
NKern::ThreadEnterCS(); |
|
547 |
r=SetBufConfig((TInt)a1,info.iBufferConfigBuf,info.iChunkHandle); |
|
548 |
NKern::ThreadLeaveCS(); |
|
549 |
} |
|
550 |
break; |
|
551 |
case RDevCameraSc::EControlChunkClose: |
|
552 |
r=ChunkClose((TInt)a1); |
|
553 |
break; |
|
554 |
case RDevCameraSc::EControlStart: |
|
555 |
r=Start(); |
|
556 |
break; |
|
557 |
case RDevCameraSc::EControlStop: |
|
558 |
if (iState==ECapturing) |
|
559 |
{ |
|
560 |
r=Pdd()->Stop(); |
|
561 |
DoCancel(1<<RDevCameraSc::ERequestNotifyNewImage); |
|
562 |
if (r==KErrNone) |
|
563 |
iState=EConfigured; |
|
564 |
} |
|
565 |
else |
|
566 |
{ |
|
567 |
r=KErrGeneral; |
|
568 |
} |
|
569 |
break; |
|
570 |
case RDevCameraSc::EControlReleaseBuffer: |
|
571 |
r=ReleaseBuffer((TInt)a1); |
|
572 |
break; |
|
573 |
case RDevCameraSc::EControlNotifyNewImageSpecificCancel: |
|
574 |
{ |
|
575 |
NKern::FMWait(&iMutex); // Acquire the buffer/request list mutex. |
|
576 |
iRequestQueue.Cancel((TRequestStatus*)a1); |
|
577 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
578 |
r=KErrNone; |
|
579 |
break; |
|
580 |
} |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
581 |
|
0 | 582 |
case RDevCameraSc::EControlBufferIdToOffset: |
583 |
{ |
|
584 |
// a1 has pointer to buffer for search criteria |
|
585 |
// a2 has pointer to offset for result |
|
586 |
TDevCamBufferModeAndId info; |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
587 |
TPtr8 inDesc((TUint8*)(&info), sizeof(info)); |
0 | 588 |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
589 |
r = Kern::ThreadDesRead(iOwningThread,a1,inDesc,0); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
590 |
if (r == KErrNone) |
0 | 591 |
{ |
592 |
TInt id = info.iId; |
|
593 |
TDevCamCaptureMode captureMode = info.iCaptureMode; |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
594 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
595 |
r = KErrNotFound; |
0 | 596 |
DBufferManager* mgr = iCaptureModeConfig[captureMode].iBufManager; |
597 |
if (mgr) |
|
598 |
{ |
|
599 |
if (mgr->iImageBuffer[id].iId == id) |
|
600 |
{ |
|
601 |
kumemput32(a2, &mgr->iImageBuffer[id].iChunkOffset, sizeof(TInt)); |
|
602 |
r = KErrNone; |
|
603 |
} |
|
604 |
} |
|
605 |
} |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
606 |
|
0 | 607 |
break; |
608 |
} |
|
609 |
case RDevCameraSc::EControlCapsSize: |
|
610 |
{ |
|
611 |
r = Pdd()->CapsSize(); |
|
612 |
break; |
|
613 |
} |
|
614 |
case RDevCameraSc::EControlFrameSizeCaps: |
|
615 |
{ |
|
616 |
r = GetFrameSizeCaps(a1, a2); |
|
617 |
break; |
|
618 |
} |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
619 |
|
0 | 620 |
case RDevCameraSc::EControlSetDynamicAttribute: |
621 |
{ |
|
622 |
NKern::ThreadEnterCS(); |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
623 |
r = SetDynamicAttribute((TInt)a1, (TUint)a2); |
0 | 624 |
NKern::ThreadLeaveCS(); |
625 |
break; |
|
626 |
} |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
627 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
628 |
case RDevCameraSc::EControlGetDynamicAttribute: |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
629 |
{ |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
630 |
TInt attribute = (TInt)(a1); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
631 |
TUint value = 0; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
632 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
633 |
r = GetDynamicAttribute(attribute, value); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
634 |
if (r == KErrNone) |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
635 |
{ |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
636 |
kumemput32(a2, &value, sizeof(TUint)); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
637 |
} |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
638 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
639 |
break; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
640 |
} |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
641 |
|
0 | 642 |
} |
643 |
return(r); |
|
644 |
} |
|
645 |
||
646 |
/** |
|
647 |
Process an asynchronous 'DoRequest' request. |
|
648 |
This function is called in the context of the DFC thread. |
|
649 |
@param aFunction The request number. |
|
650 |
@param aStatus A pointer to the TRequestStatus. |
|
651 |
@param a1 The first request argument. |
|
652 |
@param a2 The second request argument. |
|
653 |
@return KErrNone if successful, otherwise one of the other system wide error codes. |
|
654 |
*/ |
|
655 |
TInt DCameraScLdd::DoRequest(TInt aFunction, TRequestStatus* aStatus, TAny* /*a1*/, TAny* /*a2*/) |
|
656 |
{ |
|
657 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::DoRequest(%d)",aFunction)); |
|
658 |
||
659 |
TInt r=KErrNotSupported; |
|
660 |
switch (aFunction) |
|
661 |
{ |
|
662 |
case RDevCameraSc::ERequestNotifyNewImage: |
|
663 |
r=NotifyNewImage(aStatus); |
|
664 |
break; |
|
665 |
} |
|
666 |
||
667 |
__KTRACE_CAM(Kern::Printf("<DCameraScLdd::DoRequest - %d",r)); |
|
668 |
return(r); |
|
669 |
} |
|
670 |
||
671 |
/** |
|
672 |
Process the cancelling of asynchronous requests. |
|
673 |
This function is called in the context of the DFC thread. |
|
674 |
@param aMask A mask indicating which requests need to be cancelled. |
|
675 |
@return The result of the cancel. Either KErrNone if successful, otherwise one of the other |
|
676 |
system wide error codes. |
|
677 |
*/ |
|
678 |
TInt DCameraScLdd::DoCancel(TUint aMask) |
|
679 |
{ |
|
680 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::DoCancel(%08x)",aMask)); |
|
681 |
||
682 |
if (aMask&(1<<RDevCameraSc::ERequestNotifyNewImage)) |
|
683 |
{ |
|
684 |
NKern::FMWait(&iMutex); // Acquire the buffer/request list mutex. |
|
685 |
iRequestQueue.CancelAll(); |
|
686 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
687 |
} |
|
688 |
return(KErrNone); |
|
689 |
} |
|
690 |
||
691 |
/** |
|
692 |
@pre The thread must be in a critical section. |
|
693 |
*/ |
|
694 |
TInt DCameraScLdd::ReAllocBufferConfigInfo(TInt aNumBuffers) |
|
695 |
{ |
|
696 |
for (TInt captureMode=0; captureMode < ECamCaptureModeMax; captureMode++) |
|
697 |
{ |
|
698 |
if (iCaptureModeConfig[captureMode].iBufConfig) |
|
699 |
{ |
|
700 |
Kern::Free(iCaptureModeConfig[captureMode].iBufConfig); |
|
701 |
iCaptureModeConfig[captureMode].iBufConfig=NULL; |
|
702 |
} |
|
703 |
||
704 |
iCaptureModeConfig[captureMode].iBufConfigSize=aNumBuffers*(sizeof(SBufSpecList)); // Size of the three integers that hold the offset to the start of each buffer and the buffer id. |
|
705 |
iCaptureModeConfig[captureMode].iBufConfigSize+=sizeof(TSharedChunkBufConfigBase); |
|
706 |
iCaptureModeConfig[captureMode].iBufConfig=(TCameraSharedChunkBufConfig*)Kern::AllocZ(iCaptureModeConfig[captureMode].iBufConfigSize); |
|
707 |
if (!iCaptureModeConfig[captureMode].iBufConfig) |
|
708 |
return(KErrNoMemory); |
|
709 |
} |
|
710 |
return(KErrNone); |
|
711 |
} |
|
712 |
||
713 |
/** |
|
714 |
Reallocate memory for the new buffer configuration. |
|
715 |
@param aNumBuffers The number of buffers. |
|
716 |
@pre The thread must be in a critical section. |
|
717 |
*/ |
|
718 |
TInt DCameraScLdd::ReAllocBufferConfigInfo(TInt aCaptureMode, TInt aNumBuffers) |
|
719 |
{ |
|
720 |
if (iCaptureModeConfig[aCaptureMode].iBufConfig) |
|
721 |
{ |
|
722 |
Kern::Free(iCaptureModeConfig[aCaptureMode].iBufConfig); |
|
723 |
iCaptureModeConfig[aCaptureMode].iBufConfig=NULL; |
|
724 |
} |
|
725 |
||
726 |
iCaptureModeConfig[aCaptureMode].iBufConfigSize=aNumBuffers*(sizeof(SBufSpecList)); // Size of the three integers that hold the offset to the start of each buffer and the buffer id. |
|
727 |
iCaptureModeConfig[aCaptureMode].iBufConfigSize+=sizeof(TSharedChunkBufConfigBase); |
|
728 |
iCaptureModeConfig[aCaptureMode].iBufConfig=(TCameraSharedChunkBufConfig*)Kern::AllocZ(iCaptureModeConfig[aCaptureMode].iBufConfigSize); |
|
729 |
if (!iCaptureModeConfig[aCaptureMode].iBufConfig) |
|
730 |
return(KErrNoMemory); |
|
731 |
||
732 |
return(KErrNone); |
|
733 |
} |
|
734 |
||
735 |
/** |
|
736 |
@return A handle to the shared chunk for the owning thread (a value >0), if successful; |
|
737 |
otherwise one of the other system wide error codes, (a value <0). |
|
738 |
@param aCamConfigBuf The supplied camera configuration. |
|
739 |
@pre The thread must be in a critical section. |
|
740 |
*/ |
|
741 |
TInt DCameraScLdd::SetCamConfig(TInt aCaptureMode, const TDesC8* aCamConfigBuf) |
|
742 |
{ |
|
743 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::SetCamConfig()")); |
|
744 |
||
745 |
// Set the configuration of the sensor |
|
746 |
TInt r=DoSetConfig(aCaptureMode, aCamConfigBuf); |
|
747 |
return(r); |
|
748 |
} |
|
749 |
||
750 |
/** |
|
751 |
Allows changing of the dynamic settings. |
|
752 |
Checks locally the validity of the arguments passed so as to increase performance by not |
|
753 |
forcing a context switch. |
|
754 |
||
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
755 |
If the setting has been accepted by the sensor the new value is cached by the LDD so further |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
756 |
querying does not involve another context switch. |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
757 |
|
0 | 758 |
@param aAttribute An enum identifying the dynamic attribute to change. |
759 |
@param aValue The attributes value. |
|
760 |
@return KErrNone if successful, KErrNotSupported if not supported, KErrArgument if aValue out of range. |
|
761 |
Otherwise, one of the system wide error codes. |
|
762 |
@pre The thread must be in a critical section. |
|
763 |
*/ |
|
764 |
TInt DCameraScLdd::SetDynamicAttribute(TInt aAttribute, TUint aValue) |
|
765 |
{ |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
766 |
TUint* attrCachePtr = NULL; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
767 |
TInt err = KErrNotSupported; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
768 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
769 |
switch (aAttribute) |
0 | 770 |
{ |
771 |
case ECamAttributeBrightness: |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
772 |
err = Pdd()->SetBrightness(aValue); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
773 |
attrCachePtr = &iBrightnessValue; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
774 |
break; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
775 |
|
0 | 776 |
case ECamAttributeContrast: |
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
777 |
err = Pdd()->SetContrast(aValue); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
778 |
attrCachePtr = &iContrastValue; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
779 |
break; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
780 |
|
0 | 781 |
case ECamAttributeColorEffect: |
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
782 |
err = Pdd()->SetColorEffect(aValue); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
783 |
attrCachePtr = &iColorEffectValue; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
784 |
break; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
785 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
786 |
default: |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
787 |
return err; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
788 |
} |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
789 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
790 |
if (err == KErrNone) |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
791 |
{ |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
792 |
// Cache the set value. |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
793 |
__ASSERT_DEBUG(attrCachePtr, Kern::Fault(KCameraLddPanic, __LINE__)); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
794 |
*attrCachePtr = aValue; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
795 |
} |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
796 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
797 |
return err; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
798 |
} |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
799 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
800 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
801 |
/** |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
802 |
Allows querying of a dynamic setting. |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
803 |
The value is read from the cached LDD values. |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
804 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
805 |
@param aAttribute An enum identifying the dynamic attribute to change. |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
806 |
@param aValue A reference to a variable that will receive the attribute value. |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
807 |
@return KErrNone if successful, KErrNotFound if aAttribute is an unsupported |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
808 |
setting. The parameter aValue is not changed if this function fails. |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
809 |
*/ |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
810 |
TInt DCameraScLdd::GetDynamicAttribute(TInt aAttribute, TUint& aValue) |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
811 |
{ |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
812 |
switch (aAttribute) |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
813 |
{ |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
814 |
case ECamAttributeBrightness: |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
815 |
aValue = iBrightnessValue; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
816 |
break; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
817 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
818 |
case ECamAttributeContrast: |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
819 |
aValue = iContrastValue; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
820 |
break; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
821 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
822 |
case ECamAttributeColorEffect: |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
823 |
aValue = iColorEffectValue; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
824 |
break; |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
825 |
|
0 | 826 |
default: |
827 |
return KErrNotFound; |
|
828 |
} |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
829 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
830 |
return KErrNone; |
0 | 831 |
} |
832 |
||
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
833 |
|
0 | 834 |
/** |
835 |
Updates the buffer configuration of the camera for the specified capture mode. |
|
836 |
@return A handle to the shared chunk for the owning thread (a value >0), if successful; |
|
837 |
otherwise one of the other system wide error codes, (a value <0). |
|
838 |
*/ |
|
839 |
TInt DCameraScLdd::SetBufConfig(TInt aCaptureMode, TInt aNumBuffers) |
|
840 |
{ |
|
841 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::SetBufConfig(CaptureMode=%d,NumBuffers=%d)",aCaptureMode,aNumBuffers)); |
|
842 |
||
843 |
// Free any memory and chunk already allocated |
|
844 |
TInt r=ChunkClose(aCaptureMode); |
|
845 |
if (r!=KErrNone) |
|
846 |
return(r); |
|
847 |
||
848 |
// Allocate a new shared chunk and create the specified number of buffers within it. |
|
849 |
TInt buffersize=((iCaptureModeConfig[aCaptureMode].iCamConfig.iFrameSize.iWidth*iCaptureModeConfig[aCaptureMode].iCamConfig.iFrameSize.iHeight) * iCaptureModeConfig[aCaptureMode].iCamConfig.iPixelWidthInBytes); |
|
850 |
__KTRACE_CAM(Kern::Printf(">>DCameraScLdd::SetBufConfig - iFrameSize:%d, iPixelWidthInBytes:%d => bufferSize:%d",(iCaptureModeConfig[aCaptureMode].iCamConfig.iFrameSize.iWidth*iCaptureModeConfig[aCaptureMode].iCamConfig.iFrameSize.iHeight),iCaptureModeConfig[aCaptureMode].iCamConfig.iPixelWidthInBytes,buffersize)); |
|
851 |
iCaptureModeConfig[aCaptureMode].iBufManager=new DBufferManager(this); |
|
852 |
if (!iCaptureModeConfig[aCaptureMode].iBufManager) |
|
853 |
return(KErrNoMemory); |
|
854 |
r=iCaptureModeConfig[aCaptureMode].iBufManager->Create(aNumBuffers,buffersize); |
|
855 |
if (r!=KErrNone) |
|
856 |
return(r); |
|
857 |
||
858 |
// Update the LDD's chunk/buffer geometry info. |
|
859 |
r=ReAllocBufferConfigInfo(aCaptureMode, aNumBuffers); |
|
860 |
if (r!=KErrNone) |
|
861 |
return(r); |
|
862 |
iCaptureModeConfig[aCaptureMode].iBufManager->GetBufConfig(*iCaptureModeConfig[aCaptureMode].iBufConfig); |
|
863 |
||
864 |
// Create handle to the shared chunk for the owning thread. |
|
865 |
r=Kern::MakeHandleAndOpen(iOwningThread,iCaptureModeConfig[aCaptureMode].iBufManager->iChunk); |
|
866 |
if (r>0) |
|
867 |
{ |
|
868 |
// And save the the chunk and handle for later. Normally the chunk handle will be closed when the chunk |
|
869 |
// is closed, but if the chunk is re-allocated then it will need to be closed before re-allocation. |
|
870 |
iCaptureModeConfig[aCaptureMode].iChunkHandle=r; |
|
871 |
} |
|
872 |
||
873 |
__KTRACE_CAM(Kern::Printf("<DCameraScLdd::SetBufConfig - %d",r)); |
|
874 |
return(r); |
|
875 |
} |
|
876 |
||
877 |
/** |
|
878 |
Updates the buffer configuration of the camera, which has been supplied by the user, for the specified capture mode. |
|
879 |
@param aCaptureMode The capture mode for which the setting of the buffer configuration is made. |
|
880 |
@param aBufferConfigBuf A buffer that holds the buffer configuration for the camera. |
|
881 |
@param aChunkHandle A handle for the shared chunk supplied by the client. |
|
882 |
@return KErrNone if successful, otherwise one of the other system wide error codes. |
|
883 |
@pre The thread must be in a critical section. |
|
884 |
*/ |
|
885 |
TInt DCameraScLdd::SetBufConfig(TInt aCaptureMode,const TDesC8* aBufferConfigBuf,TInt aChunkHandle) |
|
886 |
{ |
|
887 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::SetConfig(Handle-%d)",aChunkHandle)); |
|
888 |
||
889 |
// Read the buffer config structure from the client. |
|
890 |
TInt numBuffers; |
|
891 |
TPtr8 ptr((TUint8*)&numBuffers,sizeof(numBuffers)); |
|
892 |
TInt r=Kern::ThreadDesRead(iOwningThread,aBufferConfigBuf,ptr,0); |
|
893 |
if (r!=KErrNone) |
|
894 |
return(r); |
|
895 |
// Calculate the minimum length of the descriptor. |
|
896 |
TInt minDesLen=(numBuffers*sizeof(SBufSpecList))+sizeof(TSharedChunkBufConfigBase); |
|
897 |
r=Kern::ThreadGetDesLength(iOwningThread,aBufferConfigBuf); |
|
898 |
if (r<minDesLen) |
|
899 |
return(KErrArgument); |
|
900 |
r=ReAllocBufferConfigInfo(aCaptureMode, numBuffers); |
|
901 |
if (r!=KErrNone) |
|
902 |
return(r); |
|
903 |
ptr.Set((TUint8*)iCaptureModeConfig[aCaptureMode].iBufConfig,0,iCaptureModeConfig[aCaptureMode].iBufConfigSize); |
|
904 |
r=Kern::ThreadDesRead(iOwningThread,aBufferConfigBuf,ptr,0); |
|
905 |
if (r!=KErrNone) |
|
906 |
return(r); |
|
907 |
||
908 |
// Free any memory and chunk already allocated |
|
909 |
r=ChunkClose(aCaptureMode); |
|
910 |
if (r!=KErrNone) |
|
911 |
return(r); |
|
912 |
||
913 |
// Open the shared chunk supplied and create buffer objects for the committed buffers within it. |
|
914 |
iCaptureModeConfig[aCaptureMode].iBufManager=new DBufferManager(this); |
|
915 |
if (!iCaptureModeConfig[aCaptureMode].iBufManager) |
|
916 |
return(KErrNoMemory); |
|
917 |
r=iCaptureModeConfig[aCaptureMode].iBufManager->Create(*iCaptureModeConfig[aCaptureMode].iBufConfig,aChunkHandle,iOwningThread); |
|
918 |
if (r!=KErrNone) |
|
919 |
return(r); |
|
920 |
||
921 |
__KTRACE_CAM(Kern::Printf("<DCameraScLdd::SetConfig - %d",KErrNone)); |
|
922 |
return(r); |
|
923 |
} |
|
924 |
||
925 |
/** |
|
926 |
Frees the buffer manager associated with a chunk, and closes the chunk itself. The chunk being closed, |
|
927 |
and its associated DBufferManager instance should have been allocated by the device driver. However, |
|
928 |
this is not a requirement. |
|
929 |
@param aCaptureMode The capture mode for which to free the buffer manager and chunk. |
|
930 |
@return KErrNone if successful. |
|
931 |
KErrInUse if an attempt has been made to free the memory and chunk while they are in use. |
|
932 |
Otherwise one of the other system-wide error codes. |
|
933 |
*/ |
|
934 |
TInt DCameraScLdd::ChunkClose(TInt aCaptureMode) |
|
935 |
{ |
|
936 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::ChunkClose(Capture Mode-%d)",aCaptureMode)); |
|
937 |
||
938 |
if(iCaptureMode == aCaptureMode) |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
939 |
{ |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
940 |
if (iState==ECapturing) |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
941 |
return(KErrInUse); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
942 |
} |
0 | 943 |
|
944 |
// Delete any existing buffers |
|
945 |
if (iCaptureModeConfig[aCaptureMode].iBufManager) |
|
946 |
{ |
|
947 |
delete iCaptureModeConfig[aCaptureMode].iBufManager; |
|
948 |
iCaptureModeConfig[aCaptureMode].iBufManager=NULL; |
|
949 |
} |
|
950 |
||
951 |
// If a handle to the shared chunk was created, close it, using the handle of the thread on which |
|
952 |
// it was created, in case a different thread is now calling us |
|
953 |
if (iCaptureModeConfig[aCaptureMode].iChunkHandle>0) |
|
954 |
{ |
|
955 |
Kern::CloseHandle(iOwningThread,iCaptureModeConfig[aCaptureMode].iChunkHandle); |
|
956 |
iCaptureModeConfig[aCaptureMode].iChunkHandle=0; |
|
957 |
} |
|
958 |
||
959 |
return(KErrNone); |
|
960 |
} |
|
961 |
||
962 |
/** |
|
963 |
Set the current capture mode and submits the camera configuration to the PDD, passing it as a descriptor |
|
964 |
to support future changes to the config structure. |
|
965 |
||
966 |
@param aCaptureMode The capture mode that the camera switches to. |
|
967 |
@return KErrNone if successful; |
|
968 |
otherwise one of the other system-wide error codes. |
|
969 |
*/ |
|
970 |
TInt DCameraScLdd::SetCaptureMode(TInt aCaptureMode) |
|
971 |
{ |
|
972 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::SetCaptureMode(Mode-%d)",aCaptureMode)); |
|
973 |
||
974 |
TInt r=KErrNone; |
|
975 |
if(aCaptureMode >= ECamCaptureModeMax || aCaptureMode < 0) |
|
976 |
{ |
|
977 |
r=KErrNotFound; |
|
978 |
return(r); |
|
979 |
} |
|
980 |
||
981 |
if (!iCaptureModeConfig[aCaptureMode].iBufManager) |
|
982 |
{ |
|
983 |
r=KErrNotReady; |
|
984 |
return(r); |
|
985 |
} |
|
986 |
||
987 |
iCaptureMode=(TDevCamCaptureMode)aCaptureMode; // The capture mode has already been checked for its validity. |
|
988 |
||
989 |
__KTRACE_CAM(Kern::Printf("DCameraScLdd::SetCaptureMode: iFrameSize:%dx%d)",iCaptureModeConfig[iCaptureMode].iCamConfig.iFrameSize.iWidth, iCaptureModeConfig[iCaptureMode].iCamConfig.iFrameSize.iHeight)); |
|
990 |
||
991 |
// Call the PDD to change the hardware configuration according to the new capture mode. |
|
992 |
// Pass it as a descriptor - to support future changes to the config structure. |
|
993 |
TPtr8 ptr((TUint8*)&iCaptureModeConfig[iCaptureMode].iCamConfig,sizeof(iCaptureModeConfig[iCaptureMode].iCamConfig),sizeof(iCaptureModeConfig[iCaptureMode].iCamConfig)); |
|
994 |
r=Pdd()->SetConfig(ptr); |
|
995 |
if (r!=KErrNone) |
|
996 |
return(r); |
|
997 |
return KErrNone; |
|
998 |
} |
|
999 |
||
1000 |
||
1001 |
/** |
|
1002 |
Process a start image capture request from the client - in the capture mode supplied. |
|
1003 |
If this is a free running mode then the PDD is called straight away to commence capturing frames. In one shot mode the driver postpones the capturing |
|
1004 |
of frames until a NotifyNewImage() request is received. |
|
1005 |
@return KErrNone if successful; whether capture mode was actually started or deferred until NotifyNewImage(); |
|
1006 |
KErrNotReady if SetConfig() has not been previously called; |
|
1007 |
otherwise one of the other system-wide error codes. |
|
1008 |
*/ |
|
1009 |
TInt DCameraScLdd::Start() |
|
1010 |
{ |
|
1011 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::Start(Current Mode-%d)",iCaptureMode)); |
|
1012 |
||
1013 |
if (iState==ECapturing) |
|
1014 |
return(KErrInUse); |
|
1015 |
TInt r=KErrNone; |
|
1016 |
||
1017 |
// Only continue if the mode being started has been configured |
|
1018 |
if (iCaptureModeConfig[iCaptureMode].iBufManager) |
|
1019 |
iState=EConfigured; |
|
1020 |
||
1021 |
if (iState==EOpen) |
|
1022 |
r=KErrNotReady; |
|
1023 |
else if (iState==EConfigured) |
|
1024 |
{ |
|
1025 |
iCaptureModeConfig[iCaptureMode].iBufManager->Reset(); |
|
1026 |
if (iCaptureMode!=ECamCaptureModeImage) |
|
1027 |
r=DoStart(); |
|
1028 |
if (r==KErrNone) |
|
1029 |
iState=ECapturing; |
|
1030 |
} |
|
1031 |
else |
|
1032 |
r=KErrGeneral; |
|
1033 |
return(r); |
|
1034 |
} |
|
1035 |
||
1036 |
/** |
|
1037 |
Start the PDD capturing images. |
|
1038 |
@return KErrNone if successful, otherwise one of the other system wide error codes. |
|
1039 |
*/ |
|
1040 |
TInt DCameraScLdd::DoStart() |
|
1041 |
{ |
|
1042 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::DoStart()")); |
|
1043 |
||
1044 |
DBufferManager* bufManager=iCaptureModeConfig[iCaptureMode].iBufManager; |
|
1045 |
TLinAddr linAddr=(bufManager->iChunkBase)+(bufManager->iCurrentBuffer->iChunkOffset); |
|
1046 |
TPhysAddr physAddr=bufManager->iCurrentBuffer->iPhysicalAddress; |
|
1047 |
TInt r=Pdd()->Start(iCaptureMode,linAddr,physAddr); |
|
1048 |
||
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1049 |
/* |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1050 |
* James Cooper: Uncommenting this code will cause the ASSERT_DEBUG in SetImageCaptured() to fail |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1051 |
* if (r==KErrNone && bufManager->iNextBuffer) |
0 | 1052 |
{ |
1053 |
linAddr=(bufManager->iChunkBase)+(bufManager->iNextBuffer->iChunkOffset); |
|
1054 |
physAddr=bufManager->iNextBuffer->iPhysicalAddress; |
|
1055 |
r=Pdd()->CaptureNextImage(linAddr,physAddr); |
|
1056 |
} |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1057 |
*/ |
0 | 1058 |
return(r); |
1059 |
} |
|
1060 |
||
1061 |
/** |
|
1062 |
Process a notify a new image request from the client. |
|
1063 |
If there is an image already available then the request is completed straight away, otherwise it is added to the capture request queue. |
|
1064 |
@param aStatus The request status to be signalled when the request is complete. If the request is successful then this is set |
|
1065 |
to the offset within the shared chunk where the record data resides. Alternatively, if an error occurs, |
|
1066 |
it will be set to one of the system wide error values. |
|
1067 |
@return KErrNone if successful - whether the request was completed or simply queued; |
|
1068 |
KErrNotReady if Start() hasn't been previousely called; |
|
1069 |
KErrInUse: if the client needs to free up buffers before further requests can be accepted; |
|
1070 |
KErrGeneral: if the client has more requests queued than there are buffers; |
|
1071 |
otherwise one of the other system wide error codes. |
|
1072 |
*/ |
|
1073 |
TInt DCameraScLdd::NotifyNewImage(TRequestStatus* aStatus) |
|
1074 |
{ |
|
1075 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::NotifyNewImage(%x) - iState(%d)",aStatus,iState)); |
|
1076 |
DBufferManager* bufManager=iCaptureModeConfig[iCaptureMode].iBufManager; |
|
1077 |
TInt r; |
|
1078 |
if (iState!=ECapturing || !bufManager) |
|
1079 |
return(KErrNotReady); |
|
1080 |
||
1081 |
NKern::FMWait(&iMutex); // Acquire the buffer/request list mutex. |
|
1082 |
if (iCaptureMode!=ECamCaptureModeImage) |
|
1083 |
{ |
|
1084 |
// We're operating in one of the free running modes, see if an image is already available. |
|
1085 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::NotifyNewImage - Getting image for client")); |
|
1086 |
TImageBuffer* buf=bufManager->GetImageForClient(EFalse); |
|
1087 |
if (buf) |
|
1088 |
{ |
|
1089 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::NotifyNewImage - There is an image available already")); |
|
1090 |
// There is an image available already - complete the request. |
|
1091 |
r=buf->iResult; |
|
1092 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1093 |
if (r==KErrNone) |
|
1094 |
{ |
|
1095 |
// Only complete if successful here. Errors will be completed on returning from this method. |
|
1096 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::NotifyNewImage(iId:%d)",buf->iId)); |
|
1097 |
Kern::RequestComplete(iOwningThread,aStatus,(buf->iId)); |
|
1098 |
} |
|
1099 |
return(r); |
|
1100 |
} |
|
1101 |
||
1102 |
// The buffer 'completed' list is empty. If the 'in-use' list contains all the buffers apart from the one being filled |
|
1103 |
// then let the client know they need to free some buffers. |
|
1104 |
if (bufManager->iFreeBufferQ.IsEmpty() && !bufManager->iNextBuffer) |
|
1105 |
{ |
|
1106 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1107 |
return(KErrInUse); |
|
1108 |
} |
|
1109 |
} |
|
1110 |
else |
|
1111 |
{ |
|
1112 |
// We're operating in one shot image capture mode. Check if the client needs to free up some buffers |
|
1113 |
// before we can accept the request. |
|
1114 |
if (bufManager->iCompletedBufferQ.IsEmpty() && bufManager->iFreeBufferQ.IsEmpty() && !bufManager->iNextBuffer) |
|
1115 |
{ |
|
1116 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1117 |
return(KErrInUse); |
|
1118 |
} |
|
1119 |
||
1120 |
// Enough buffers are available so we can start capturing data. First |
|
1121 |
// check that there isn't already a capture request in progress. |
|
1122 |
if (iRequestQueue.IsEmpty()) |
|
1123 |
{ |
|
1124 |
// No previous request in progress so start the PDD. |
|
1125 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1126 |
r=DoStart(); |
|
1127 |
if (r!=KErrNone) |
|
1128 |
return(r); |
|
1129 |
NKern::FMWait(&iMutex); // Acquire the buffer/request list mutex again. |
|
1130 |
} |
|
1131 |
} |
|
1132 |
||
1133 |
// Save the request in the pending queue and return. The request will be completed from the PDD and the DFC thread when |
|
1134 |
// an image is available. |
|
1135 |
r=iRequestQueue.Add(aStatus); |
|
1136 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1137 |
return(r); |
|
1138 |
} |
|
1139 |
||
1140 |
/** |
|
1141 |
Process a release buffer request from the client. |
|
1142 |
@param aChunkOffset The chunk offset corresponding to the buffer to be freed. |
|
1143 |
@return KErrNone if successful; |
|
1144 |
KErrNotFound if no 'in use' buffer had the specified chunk offset; |
|
1145 |
KErrNotReady if the driver hasn't been configured for the current capture mode. |
|
1146 |
*/ |
|
1147 |
TInt DCameraScLdd::ReleaseBuffer(TInt aBufferId) |
|
1148 |
{ |
|
1149 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::ReleaseBuffer(%d)",aBufferId)); |
|
1150 |
if(!iCaptureModeConfig[iCaptureMode].iBufManager) |
|
1151 |
return KErrNotReady; |
|
1152 |
DBufferManager* bufManager=iCaptureModeConfig[iCaptureMode].iBufManager; |
|
1153 |
TInt chunkOffset = 0; |
|
1154 |
||
1155 |
TInt r=KErrNone; |
|
1156 |
/* The driver is left in an ECapturing state after capturing frames. However, it can be left in an |
|
1157 |
EConfigured state as a result of Stop() being called. Stop() cancels all pending capture requests and |
|
1158 |
leaves the driver in a state in which it can be restarted without needing reconfiguring. */ |
|
1159 |
if (iState!=EOpen && bufManager) |
|
1160 |
{ |
|
1161 |
chunkOffset = bufManager->iImageBuffer[aBufferId].iChunkOffset; |
|
1162 |
TImageBuffer* buf=NULL; |
|
1163 |
NKern::FMWait(&iMutex); // Acquire the buffer/request list mutex. |
|
1164 |
buf=bufManager->FindInUseImage(chunkOffset); |
|
1165 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1166 |
if (buf) |
|
1167 |
{ |
|
1168 |
// The buffer specified by the client has been found in the 'in-use' list. |
|
1169 |
bufManager->Purge(buf); |
|
1170 |
} |
|
1171 |
else |
|
1172 |
r=KErrNotFound; |
|
1173 |
||
1174 |
if (r==KErrNone) |
|
1175 |
{ |
|
1176 |
NKern::FMWait(&iMutex); // Acquire the buffer/request list mutex. |
|
1177 |
// Release it from the 'in-use list into the 'free' list. |
|
1178 |
r=bufManager->ReleaseImage(chunkOffset); |
|
1179 |
if (r>0) |
|
1180 |
{ |
|
1181 |
// The buffer needs to be queued straight away - so signal this to the PDD |
|
1182 |
TLinAddr linAddr=(bufManager->iChunkBase)+(bufManager->iNextBuffer->iChunkOffset); |
|
1183 |
TPhysAddr physAddr=bufManager->iNextBuffer->iPhysicalAddress; |
|
1184 |
buf=bufManager->iNextBuffer; |
|
1185 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1186 |
r=Pdd()->CaptureNextImage(linAddr,physAddr); |
|
1187 |
if (r==KErrNotReady) |
|
1188 |
r=KErrNone; |
|
1189 |
} |
|
1190 |
else |
|
1191 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1192 |
} |
|
1193 |
} |
|
1194 |
else |
|
1195 |
r=KErrNotReady; |
|
1196 |
__KTRACE_CAM(Kern::Printf("<DCameraScLdd::ReleaseBuffer() - r(%d)",r)); |
|
1197 |
return(r); |
|
1198 |
} |
|
1199 |
||
1200 |
/** |
|
1201 |
Called from the PDD in the DFC thread each time it finishes capturing an image frame. |
|
1202 |
This will complete a pending capture request and update buffer lists. |
|
1203 |
@param aCaptureMode The capture mode of the image captured. @see TDevCamCaptureMode. |
|
1204 |
@param aResult The result of the image capture request being completed. |
|
1205 |
@param aLinAddr If this function returns KErrNone then on return, this holds the linear address of the start of the next buffer |
|
1206 |
to use for image capture. |
|
1207 |
@param aPhysAddr If this function returns KErrNone then on return, this holds the physical address that corresponds to the |
|
1208 |
linear address: aLinAddr. |
|
1209 |
@return KErrNone if capturing should continue - with holding information on the next buffer to use for image capture. |
|
1210 |
KErrNotReady if capturing should continue - but with no further buffer available for image capture just yet. |
|
1211 |
KErrAbort if image capturing should now be terminated. |
|
1212 |
*/ |
|
1213 |
TInt DCameraScLdd::ImageCaptureCallback(TDevCamCaptureMode /*aCaptureMode*/,TInt aResult,TLinAddr* aLinAddr,TPhysAddr* aPhysAddr) |
|
1214 |
{ |
|
1215 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::ImageCaptureCallback")); |
|
1216 |
||
1217 |
DBufferManager* bufManager=iCaptureModeConfig[iCaptureMode].iBufManager; |
|
1218 |
// Update the buffer list and get the next buffer for capture. |
|
1219 |
NKern::FMWait(&iMutex); // Acquire the buffer/request list mutex. |
|
1220 |
TImageBuffer* nextBuffer=bufManager->SetImageCaptured(aResult); // Puts the captured image's buffer in the completed buffer queue. |
|
1221 |
||
1222 |
// Check if there is a capture request pending. |
|
1223 |
if (!iRequestQueue.IsEmpty()) |
|
1224 |
{ |
|
1225 |
// A capture request is pending. |
|
1226 |
TBool removeLast=((iCaptureMode==ECamCaptureModeImage) ? (TBool) ETrue : (TBool) EFalse); |
|
1227 |
TImageBuffer* buf=bufManager->GetImageForClient(removeLast); // Retrieved the captured image from the buffer in the completed buffer queue. |
|
1228 |
if (buf) |
|
1229 |
{ |
|
1230 |
// Update the request pending list and complete the request. |
|
1231 |
TRequestStatus* rs=iRequestQueue.Remove(); |
|
1232 |
TInt reason=(buf->iResult==KErrNone) ? buf->iId : buf->iResult; |
|
1233 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1234 |
buf->SyncMemoryAfterDmaRead(); |
|
1235 |
Kern::RequestComplete(iOwningThread,rs,reason); // Complete the request. |
|
1236 |
} |
|
1237 |
else |
|
1238 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1239 |
} |
|
1240 |
else |
|
1241 |
NKern::FMSignal(&iMutex); // Release the buffer/request list mutex. |
|
1242 |
||
1243 |
// Now work out what instruction to give to the PDD |
|
1244 |
TInt r=KErrNone; |
|
1245 |
if (iCaptureMode==ECamCaptureModeImage) |
|
1246 |
{ |
|
1247 |
// Image capture mode. If we've just completed a one shot request, see if there is yet another one pending. |
|
1248 |
if (!iRequestQueue.IsEmpty()) |
|
1249 |
{ |
|
1250 |
// Another request is pending so let the PDD carry on. |
|
1251 |
// If an error occured we need to first stop and re-start image capture |
|
1252 |
if (aResult!=KErrNone) |
|
1253 |
{ |
|
1254 |
iRestartDfc.Enque(); // Queue a DFC to re-start the PDD later. |
|
1255 |
r=KErrAbort; |
|
1256 |
} |
|
1257 |
} |
|
1258 |
else |
|
1259 |
{ |
|
1260 |
r=KErrAbort; // End of image gather mode so stop the PDD. |
|
1261 |
} |
|
1262 |
} |
|
1263 |
else |
|
1264 |
{ |
|
1265 |
// One of the free running modes. If an error occured we need to first stop and re-start image capture |
|
1266 |
if (aResult!=KErrNone) |
|
1267 |
{ |
|
1268 |
iRestartDfc.Enque(); // Queue a DFC to re-start the PDD later. |
|
1269 |
r=KErrAbort; |
|
1270 |
} |
|
1271 |
} |
|
1272 |
||
1273 |
// If capture should continue, check if there is a further buffer available to use for image capture. |
|
1274 |
if (r==KErrNone) |
|
1275 |
{ |
|
1276 |
if (nextBuffer) |
|
1277 |
{ |
|
1278 |
*aLinAddr=(bufManager->iChunkBase)+(nextBuffer->iChunkOffset); |
|
1279 |
*aPhysAddr=nextBuffer->iPhysicalAddress; |
|
1280 |
} |
|
1281 |
else |
|
1282 |
r=KErrNotReady; |
|
1283 |
} |
|
1284 |
return(r); |
|
1285 |
} |
|
1286 |
||
1287 |
/** |
|
1288 |
Stores the camera configuration passed in from the user after checking and validating it. |
|
1289 |
@param aCaptureMode The capture mode for which the setting of the camera configuration is made. |
|
1290 |
@param aCamConfigBuf A buffer that contains the camera configuration. |
|
1291 |
@return KErrNone if successful |
|
1292 |
KErrInUse if the camera is capturing an image |
|
1293 |
KErrArgument if the camera configuration passed in is invalid |
|
1294 |
otherwise a system wide error code. |
|
1295 |
*/ |
|
1296 |
TInt DCameraScLdd::DoSetConfig(TInt aCaptureMode, const TDesC8* aCamConfigBuf) |
|
1297 |
{ |
|
1298 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::DoSetConfig(CaptureMode=%d)",aCaptureMode)); |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1299 |
|
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1300 |
if(iCaptureMode == aCaptureMode) |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1301 |
{ |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1302 |
if (iState==ECapturing) |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1303 |
return(KErrInUse); |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1304 |
} |
0 | 1305 |
|
1306 |
// Read the config structure from the client |
|
1307 |
TCameraConfigV02 config; |
|
1308 |
TPtr8 ptr((TUint8*)&config,sizeof(config)); |
|
1309 |
TInt r=Kern::ThreadDesRead(iOwningThread,aCamConfigBuf,ptr,0); |
|
1310 |
if (r!=KErrNone) |
|
1311 |
return(r); |
|
1312 |
||
1313 |
// Check that it is compatible with this camera device |
|
1314 |
r=ValidateConfig(aCaptureMode, config); |
|
1315 |
if (r!=KErrNone) |
|
1316 |
{ |
|
1317 |
if (r == KErrNotFound) |
|
1318 |
r = KErrArgument; |
|
1319 |
return(r); |
|
1320 |
} |
|
1321 |
||
1322 |
// We're about to replace any previous configuration - so set the |
|
1323 |
// status back to un-configured. A new buffer configuration must be calculated as a result of that. |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1324 |
//iState=EOpen; |
0 | 1325 |
|
1326 |
// Save the new configuration. |
|
1327 |
iCaptureModeConfig[aCaptureMode].iCamConfig=config; |
|
1328 |
iCaptureModeConfig[aCaptureMode].iFrameHeight=iCaptureModeConfig[aCaptureMode].iCamConfig.iFrameSize.iHeight; |
|
1329 |
iCaptureModeConfig[aCaptureMode].iFrameWidth=iCaptureModeConfig[aCaptureMode].iCamConfig.iFrameSize.iWidth; |
|
1330 |
||
1331 |
__KTRACE_CAM(Kern::Printf("<DCameraScLdd::DoSetConfig - %d",KErrNone)); |
|
1332 |
return(r); |
|
1333 |
} |
|
1334 |
||
1335 |
/** |
|
1336 |
Validates the configuration that is about to be used with the driver. |
|
1337 |
@param aCaptureMode The capture mode that the configuration is for. |
|
1338 |
@param aConfig The buffer that contains the camera configuration, as passed in from the user. |
|
1339 |
@return KErrNotFound if the configuration is not supported by the camera sensor. |
|
1340 |
KErrNotSupported if the driver does not support aCaptureMode |
|
1341 |
KErrNone if successful. |
|
1342 |
*/ |
|
1343 |
TInt DCameraScLdd::ValidateConfig(TInt aCaptureMode, TCameraConfigV02& aConfig) |
|
1344 |
{ |
|
1345 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::ValidateConfig")); |
|
1346 |
||
1347 |
TInt capsSize = Pdd()->CapsSize(); |
|
1348 |
NKern::ThreadEnterCS(); |
|
1349 |
TAny* capsBuf = Kern::Alloc(capsSize); |
|
1350 |
if(!capsBuf) |
|
1351 |
{ |
|
1352 |
NKern::ThreadLeaveCS(); |
|
1353 |
return KErrNoMemory; |
|
1354 |
} |
|
1355 |
||
1356 |
TPtr8 capsPtr( (TUint8*)capsBuf, capsSize, capsSize ); |
|
1357 |
Pdd()->Caps(capsPtr); |
|
1358 |
NKern::ThreadLeaveCS(); |
|
1359 |
||
1360 |
TCameraCapsV02* camCaps = (TCameraCapsV02*) capsPtr.Ptr(); |
|
1361 |
||
1362 |
TInt r; |
|
1363 |
if(aCaptureMode==ECamCaptureModeImage && camCaps->iNumImagePixelFormats) |
|
1364 |
{ |
|
1365 |
r=DoValidateConfig(camCaps, aCaptureMode, aConfig); |
|
1366 |
} |
|
1367 |
else if(aCaptureMode==ECamCaptureModeVideo && camCaps->iNumVideoPixelFormats) |
|
1368 |
{ |
|
1369 |
r=DoValidateConfig(camCaps, aCaptureMode, aConfig); |
|
1370 |
} |
|
1371 |
else if(aCaptureMode==ECamCaptureModeViewFinder && camCaps->iNumViewFinderPixelFormats) |
|
1372 |
{ |
|
1373 |
r=DoValidateConfig(camCaps, aCaptureMode, aConfig); |
|
1374 |
} |
|
1375 |
else |
|
1376 |
r=KErrNotSupported; |
|
1377 |
||
1378 |
if(r==KErrNone) |
|
1379 |
{ |
|
1380 |
// Calculate the pixel width (in bytes) for the format specified |
|
1381 |
aConfig.iPixelWidthInBytes=aConfig.iPixelFormat.iPixelWidthInBytes; |
|
1382 |
} |
|
1383 |
||
1384 |
NKern::ThreadEnterCS(); |
|
1385 |
Kern::Free(capsBuf); |
|
1386 |
NKern::ThreadLeaveCS(); |
|
1387 |
||
1388 |
__KTRACE_CAM(Kern::Printf("<DCameraScLdd::ValidateConfig - %d",r)); |
|
1389 |
return(r); |
|
1390 |
} |
|
1391 |
||
1392 |
/** |
|
1393 |
Validates the configuration that is about to be used with the driver by checking it against what the camera sensor supports. |
|
1394 |
@param aCamCaps The buffer that contains the capabilities of the camera driver. |
|
1395 |
@param aCaptureMode The capture mode that the configuration is for. |
|
1396 |
@param aConfig The buffer that contains the camera configuration, as passed in from the user. |
|
1397 |
@return KErrNotFound if the configuration is not supported by the camera sensor |
|
1398 |
KErrNone if successful |
|
1399 |
or one of the system wide error values. |
|
1400 |
*/ |
|
1401 |
TInt DCameraScLdd::DoValidateConfig(TCameraCapsV02* aCamCaps, TInt& aCaptureMode, TCameraConfigV02& aConfig) |
|
1402 |
{ |
|
1403 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::DoValidateConfig")); |
|
1404 |
TAny* frameSizeCapsBuf; |
|
1405 |
TInt frameSizeCapsSize; |
|
1406 |
SFrameSizeCapsInfo info; |
|
1407 |
SDevCamFrameSize* frameSize; |
|
1408 |
TUint i; |
|
1409 |
TUint l; |
|
1410 |
SDevCamPixelFormat* pixelFormat; |
|
1411 |
TUint start; |
|
1412 |
TUint end; |
|
1413 |
TInt r; |
|
1414 |
pixelFormat = (SDevCamPixelFormat*) (aCamCaps + 1); |
|
1415 |
if(aCaptureMode==ECamCaptureModeImage) |
|
1416 |
{ |
|
1417 |
start=0; |
|
1418 |
end=aCamCaps->iNumImagePixelFormats; |
|
1419 |
} |
|
1420 |
else if(aCaptureMode==ECamCaptureModeVideo) |
|
1421 |
{ |
|
1422 |
start=aCamCaps->iNumImagePixelFormats; |
|
1423 |
end=aCamCaps->iNumImagePixelFormats + aCamCaps->iNumVideoPixelFormats; |
|
1424 |
pixelFormat += aCamCaps->iNumImagePixelFormats; |
|
1425 |
} |
|
1426 |
else if(aCaptureMode==ECamCaptureModeViewFinder) |
|
1427 |
{ |
|
1428 |
start=aCamCaps->iNumImagePixelFormats+aCamCaps->iNumVideoPixelFormats; |
|
1429 |
end=aCamCaps->iNumImagePixelFormats + aCamCaps->iNumVideoPixelFormats + aCamCaps->iNumViewFinderPixelFormats; |
|
1430 |
pixelFormat += aCamCaps->iNumImagePixelFormats; |
|
1431 |
pixelFormat += aCamCaps->iNumVideoPixelFormats; |
|
1432 |
} |
|
1433 |
else |
|
1434 |
return KErrNotSupported; |
|
1435 |
||
1436 |
for (i=start; i<end; i++) |
|
1437 |
{ |
|
1438 |
if(aConfig.iPixelFormat.iPixelFormat==pixelFormat->iPixelFormat) |
|
1439 |
{ |
|
1440 |
info.iUidPixelFormat = pixelFormat->iPixelFormat; |
|
1441 |
info.iCaptureMode = (TDevCamCaptureMode) aCaptureMode; |
|
1442 |
frameSizeCapsSize = pixelFormat->iNumFrameSizes*sizeof(SDevCamFrameSize); |
|
1443 |
NKern::ThreadEnterCS(); |
|
1444 |
frameSizeCapsBuf = Kern::Alloc(frameSizeCapsSize); |
|
1445 |
NKern::ThreadLeaveCS(); |
|
1446 |
if (!frameSizeCapsBuf) |
|
1447 |
{ |
|
1448 |
return KErrNoMemory; |
|
1449 |
} |
|
1450 |
TPtr8 frameSizeCapsPtr( (TUint8*)frameSizeCapsBuf, frameSizeCapsSize, frameSizeCapsSize ); |
|
1451 |
if ((r = Pdd()->FrameSizeCaps(info.iCaptureMode, info.iUidPixelFormat, frameSizeCapsPtr)) == KErrNone) |
|
1452 |
{ |
|
1453 |
frameSize = (SDevCamFrameSize*) frameSizeCapsPtr.Ptr(); |
|
1454 |
for(l=0; l<pixelFormat->iNumFrameSizes; l++ ) |
|
1455 |
{ |
|
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1456 |
if (aConfig.iFrameSize.iWidth == frameSize->iWidth && |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1457 |
aConfig.iFrameSize.iHeight == frameSize->iHeight && |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1458 |
aConfig.iFrameRate >= frameSize->iMinFrameRate && |
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1459 |
aConfig.iFrameRate <= frameSize->iMaxFrameRate) |
0 | 1460 |
{ |
1461 |
NKern::ThreadEnterCS(); |
|
1462 |
Kern::Free(frameSizeCapsBuf); |
|
1463 |
NKern::ThreadLeaveCS(); |
|
1464 |
__KTRACE_CAM(Kern::Printf("<DCameraScLdd::DoValidateConfig")); |
|
1465 |
return KErrNone; |
|
1466 |
} |
|
1467 |
frameSize++; |
|
1468 |
} |
|
1469 |
NKern::ThreadEnterCS(); |
|
1470 |
Kern::Free(frameSizeCapsBuf); |
|
1471 |
NKern::ThreadLeaveCS(); |
|
1472 |
return KErrNotFound; |
|
1473 |
} |
|
1474 |
else |
|
1475 |
{ |
|
1476 |
NKern::ThreadEnterCS(); |
|
1477 |
Kern::Free(frameSizeCapsBuf); |
|
1478 |
NKern::ThreadLeaveCS(); |
|
1479 |
return r; |
|
1480 |
} |
|
1481 |
} |
|
1482 |
pixelFormat++; |
|
1483 |
} |
|
1484 |
return KErrNotFound; |
|
1485 |
} |
|
1486 |
||
1487 |
/** |
|
1488 |
The DFC used to re-start the PDD following a data capture error. |
|
1489 |
@param aChannel A pointer to the camera driver logical channel object. |
|
1490 |
*/ |
|
1491 |
void DCameraScLdd::RestartDfc(TAny* aChannel) |
|
1492 |
{ |
|
1493 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::RestartDfc")); |
|
1494 |
||
1495 |
DCameraScLdd& drv=*(DCameraScLdd*)aChannel; |
|
1496 |
||
1497 |
if (!drv.iCaptureModeConfig[drv.iCaptureMode].iBufManager->iCurrentBuffer) |
|
1498 |
drv.iCaptureModeConfig[drv.iCaptureMode].iBufManager->iCurrentBuffer=drv.iCaptureModeConfig[drv.iCaptureMode].iBufManager->NextAvailableForCapture(); |
|
1499 |
__ASSERT_ALWAYS(drv.iCaptureModeConfig[drv.iCaptureMode].iBufManager->iCurrentBuffer,Kern::Fault(KCameraLddPanic,__LINE__)); |
|
1500 |
||
1501 |
if (!drv.iCaptureModeConfig[drv.iCaptureMode].iBufManager->iNextBuffer) |
|
1502 |
drv.iCaptureModeConfig[drv.iCaptureMode].iBufManager->iNextBuffer=drv.iCaptureModeConfig[drv.iCaptureMode].iBufManager->NextAvailableForCapture(); |
|
1503 |
||
1504 |
drv.DoStart(); |
|
1505 |
} |
|
1506 |
||
1507 |
/** |
|
1508 |
The DFC used to handle power down requests from the power manager before a transition into system |
|
1509 |
shutdown/standby. |
|
1510 |
@param aChannel A pointer to the camera driver logical channel object. |
|
1511 |
*/ |
|
1512 |
void DCameraScLdd::PowerDownDfc(TAny* aChannel) |
|
1513 |
{ |
|
1514 |
DCameraScLdd& drv=*(DCameraScLdd*)aChannel; |
|
1515 |
drv.Shutdown(); |
|
1516 |
drv.iPowerHandler->PowerDownDone(); |
|
1517 |
} |
|
1518 |
||
1519 |
/** |
|
1520 |
The DFC used to handle power up requests from the power manager following a transition out of system standby. |
|
1521 |
@param aChannel A pointer to the camera driver logical channel object. |
|
1522 |
*/ |
|
1523 |
void DCameraScLdd::PowerUpDfc(TAny* aChannel) |
|
1524 |
{ |
|
1525 |
DCameraScLdd& drv=*(DCameraScLdd*)aChannel; |
|
1526 |
drv.iPowerHandler->PowerUpDone(); |
|
1527 |
} |
|
1528 |
||
1529 |
void DCameraScLdd::PanicClientThread(TInt aReason) |
|
1530 |
{ |
|
1531 |
Kern::ThreadKill(iOwningThread, EExitPanic, aReason, KDevCameraScName); |
|
1532 |
} |
|
1533 |
||
1534 |
/** |
|
1535 |
Retrieves the capabilities of the camera sensor. |
|
1536 |
@param aBuffer A pointer to a descriptor passed in by the user. |
|
1537 |
*/ |
|
1538 |
TInt DCameraScLdd::GetSensorCaps(TAny* aBuffer) |
|
1539 |
{ |
|
1540 |
// Return the capabilities for this device. Read this from the PDD and |
|
1541 |
// then write it to the client |
|
1542 |
TInt capsSize = Pdd()->CapsSize(); |
|
1543 |
TInt bufferSize; |
|
1544 |
TInt maxBufferSize; |
|
1545 |
Kern::KUDesInfo(*((TDes8*)aBuffer), bufferSize, maxBufferSize); |
|
1546 |
if(capsSize>maxBufferSize) |
|
1547 |
{ |
|
1548 |
return KErrArgument; |
|
1549 |
} |
|
1550 |
NKern::ThreadEnterCS(); |
|
1551 |
TAny* capsBuf = Kern::Alloc(capsSize); |
|
1552 |
if(!capsBuf) |
|
1553 |
{ |
|
1554 |
NKern::ThreadLeaveCS(); |
|
1555 |
return KErrNoMemory; |
|
1556 |
} |
|
1557 |
||
1558 |
TPtr8 capsPtr( (TUint8*)capsBuf, capsSize, capsSize ); |
|
1559 |
Pdd()->Caps(capsPtr); |
|
1560 |
NKern::ThreadLeaveCS(); |
|
1561 |
Kern::InfoCopy(*((TDes8*)aBuffer), capsPtr.Ptr(), capsSize); |
|
1562 |
NKern::ThreadEnterCS(); |
|
1563 |
Kern::Free((TAny*)capsBuf); |
|
1564 |
NKern::ThreadLeaveCS(); |
|
1565 |
return KErrNone; |
|
1566 |
} |
|
1567 |
||
1568 |
/** |
|
1569 |
Retrieves the frame sizes supported for a given pixel format. |
|
1570 |
@param aBuffer A pointer to descriptor passed in by the user. |
|
1571 |
@param aFrameSizeCapsInfo A structure that holds information regarding the requested capabilities. |
|
1572 |
*/ |
|
1573 |
TInt DCameraScLdd::GetFrameSizeCaps(TAny* aBuffer, TAny* aFrameSizeCapsInfo) |
|
1574 |
{ |
|
1575 |
__KTRACE_CAM(Kern::Printf(">DCameraScLdd::GetFrameSizeCaps()")); |
|
1576 |
TInt frameSizeCapsMaxSize; |
|
1577 |
TInt frameSizeCapsSize; |
|
1578 |
Kern::KUDesInfo(*((TDes8*)aBuffer),frameSizeCapsSize,frameSizeCapsMaxSize); |
|
1579 |
SFrameSizeCapsInfo info; |
|
1580 |
kumemget((TAny*)&info,aFrameSizeCapsInfo,sizeof(info)); |
|
1581 |
NKern::ThreadEnterCS(); |
|
1582 |
// Allocate memory on the heap for the frame size structure. |
|
1583 |
TAny* frameSizeCapsBuf = Kern::Alloc(frameSizeCapsMaxSize); |
|
1584 |
if (!frameSizeCapsBuf) |
|
1585 |
{ |
|
1586 |
NKern::ThreadLeaveCS(); |
|
1587 |
return KErrNoMemory; |
|
1588 |
} |
|
1589 |
TPtr8 frameSizeCapsPtr( (TUint8*)frameSizeCapsBuf, frameSizeCapsMaxSize, frameSizeCapsMaxSize ); |
|
1590 |
// Request the frame sizes from the Pdd. |
|
1591 |
TInt r=Pdd()->FrameSizeCaps(info.iCaptureMode, info.iUidPixelFormat, frameSizeCapsPtr); |
|
1592 |
NKern::ThreadLeaveCS(); |
|
1593 |
if (r!=KErrNone) |
|
1594 |
{ |
|
1595 |
NKern::ThreadEnterCS(); |
|
1596 |
Kern::Free((TAny*)frameSizeCapsBuf); |
|
1597 |
NKern::ThreadLeaveCS(); |
|
1598 |
return r; |
|
1599 |
} |
|
1600 |
Kern::InfoCopy(*((TDes8*)aBuffer),frameSizeCapsPtr.Ptr(), frameSizeCapsMaxSize); |
|
1601 |
NKern::ThreadEnterCS(); |
|
1602 |
Kern::Free((TAny*)frameSizeCapsBuf); |
|
1603 |
NKern::ThreadLeaveCS(); |
|
1604 |
return KErrNone; |
|
1605 |
} |
|
1606 |
||
4
56f325a607ea
Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
1607 |
|
0 | 1608 |
/** |
1609 |
Constructor for the buffer manager. |
|
1610 |
*/ |
|
1611 |
DBufferManager::DBufferManager(DCameraScLdd* aLdd) |
|
1612 |
: iLdd(aLdd) |
|
1613 |
{ |
|
1614 |
// iChunk=NULL; |
|
1615 |
// iNumBuffers=0; |
|
1616 |
// iImageBuffer=NULL; |
|
1617 |
} |
|
1618 |
||
1619 |
/** |
|
1620 |
Destructor for the buffer manager. |
|
1621 |
@pre The thread must be in a critical section. |
|
1622 |
*/ |
|
1623 |
DBufferManager::~DBufferManager() |
|
1624 |
{ |
|
1625 |
if (iChunk) |
|
1626 |
Kern::ChunkClose(iChunk); |
|
1627 |
delete[] iImageBuffer; |
|
1628 |
} |
|
1629 |
||
1630 |
/** |
|
1631 |
Second stage constructor for the buffer manager. This version creates a shared chunk and a buffer object for each |
|
1632 |
buffer specified within this. Then it commits memory within the chunk for each of these buffers. This also involves the |
|
1633 |
creation of a set of buffer lists to manage the buffers. |
|
1634 |
@param aNumBuffers The number of buffers required in the shared chunk. |
|
1635 |
@param aBufferSize The size of each buffer required in the shared chunk. |
|
1636 |
@return KErrNone if successful, otherwise one of the other system wide error codes. |
|
1637 |
@pre The thread must be in a critical section. |
|
1638 |
*/ |
|
1639 |
TInt DBufferManager::Create(TInt aNumBuffers,TInt aBufferSize) |
|
1640 |
{ |
|
1641 |
__KTRACE_CAM(Kern::Printf(">DBufferManager::Create(Bufs-%d,Sz-%d)",aNumBuffers,aBufferSize)); |
|
1642 |
||
1643 |
TInt r=CreateBufferLists(aNumBuffers); |
|
1644 |
if (r!=KErrNone) |
|
1645 |
return(r); |
|
1646 |
||
1647 |
// Calculate the size of the chunk required for the buffer configuration specified. |
|
1648 |
aBufferSize=Kern::RoundToPageSize(aBufferSize); |
|
1649 |
TInt pageSize=Kern::RoundToPageSize(1); |
|
1650 |
// Leave space for guard pages around each buffer. There is a guard page in between each buffer but |
|
1651 |
// NO guard page before the first buffer or after the last buffer |
|
1652 |
TUint64 chunkSize=TUint64(aBufferSize+pageSize)*aNumBuffers-pageSize; |
|
1653 |
if (chunkSize>(TUint64)KMaxTInt) |
|
1654 |
return(KErrNoMemory); // Need more than 2GB of memory! |
|
1655 |
||
1656 |
// Create the shared chunk. The PDD supplies most of the chunk create info - but not the maximum size. |
|
1657 |
TChunkCreateInfo info; |
|
1658 |
info.iMaxSize=(TInt)chunkSize; |
|
1659 |
iLdd->Pdd()->GetChunkCreateInfo(info); // Call down to the PDD for the rest. |
|
1660 |
||
1661 |
r = Kern::ChunkCreate(info,iChunk,iChunkBase,iChunkMapAttr); |
|
1662 |
if (r!=KErrNone) |
|
1663 |
return(r); |
|
1664 |
||
1665 |
// Commit memory in the chunk for each buffer. |
|
1666 |
TInt offset=0; |
|
1667 |
TBool isContiguous; |
|
1668 |
for (TInt i=0; i<aNumBuffers ; i++) |
|
1669 |
{ |
|
1670 |
r=CommitMemoryForBuffer(offset,aBufferSize,isContiguous); |
|
1671 |
if (r!=KErrNone) |
|
1672 |
return(r); |
|
1673 |
r=iImageBuffer[i].Create(iChunk,offset,aBufferSize,i,isContiguous); |
|
1674 |
iImageBuffer[i].iId=i; |
|
1675 |
if (r!=KErrNone) |
|
1676 |
return(r); |
|
1677 |
offset += (aBufferSize+pageSize); |
|
1678 |
} |
|
1679 |
||
1680 |
return(KErrNone); |
|
1681 |
} |
|
1682 |
||
1683 |
/** |
|
1684 |
Second stage constructor for the buffer manager. This version opens an existing shared chunk using a client supplied |
|
1685 |
handle. It then creates a buffer object for each buffer that exists within the chunk as well as creating a set of buffer |
|
1686 |
lists to manage the buffers. |
|
1687 |
@param aBufConfig The shared chunk buffer configuration object - specifying the geometry of the buffer configuration |
|
1688 |
within the shared chunk supplied. |
|
1689 |
@param aChunkHandle A handle for the shared chunk supplied by the client. |
|
1690 |
@param anOwningThread The thread in which the given handle is valid. |
|
1691 |
@return KErrNone if successful, otherwise one of the other system wide error codes. |
|
1692 |
@pre The thread must be in a critical section. |
|
1693 |
*/ |
|
1694 |
TInt DBufferManager::Create(TCameraSharedChunkBufConfig& aBufConfig,TInt aChunkHandle,DThread* anOwningThread) |
|
1695 |
{ |
|
1696 |
__KTRACE_CAM(Kern::Printf(">DBufferManager::Create(Handle-%d)",aChunkHandle)); |
|
1697 |
||
1698 |
// Validate the buffer configuration information |
|
1699 |
if (!aBufConfig.iFlags&KScFlagBufOffsetListInUse) |
|
1700 |
return(KErrArgument); |
|
1701 |
||
1702 |
TInt numBuffers=aBufConfig.iNumBuffers; |
|
1703 |
TInt r=CreateBufferLists(numBuffers); |
|
1704 |
if (r!=KErrNone) |
|
1705 |
return(r); |
|
1706 |
||
1707 |
DChunk* chunk; |
|
1708 |
chunk=Kern::OpenSharedChunk(anOwningThread,aChunkHandle,ETrue); |
|
1709 |
if (!chunk) |
|
1710 |
return(KErrBadHandle); |
|
1711 |
iChunk=chunk; |
|
1712 |
||
1713 |
// Read the physical address for the 1st buffer in order to determine the kernel address and the map attributes. |
|
1714 |
TInt bufferSizeInBytes=aBufConfig.iBufferSizeInBytes; |
|
1715 |
||
1716 |
SBufSpecList* bufferSpec=&aBufConfig.iSpec; |
|
1717 |
||
1718 |
TInt offset=bufferSpec[0].iBufferOffset; |
|
1719 |
||
1720 |
TPhysAddr physAddr; |
|
1721 |
r=Kern::ChunkPhysicalAddress(iChunk,offset,bufferSizeInBytes,iChunkBase,iChunkMapAttr,physAddr,NULL); |
|
1722 |
if (r!=KErrNone) |
|
1723 |
return(r); |
|
1724 |
||
1725 |
// Store the supplied buffer info. into each buffer object. |
|
1726 |
||
1727 |
for (TInt i=0; i<numBuffers; i++) |
|
1728 |
{ |
|
1729 |
offset=bufferSpec[i].iBufferOffset; |
|
1730 |
// Assume it isn't contiguous here - Create() will detect and do the right thing if it is contiguous. |
|
1731 |
r=iImageBuffer[i].Create(iChunk,offset,bufferSizeInBytes,i,EFalse); |
|
1732 |
iImageBuffer[i].iId=i; |
|
1733 |
if (r!=KErrNone) |
|
1734 |
return(r); |
|
1735 |
} |
|
1736 |
__KTRACE_CAM(Kern::Printf("<DBufferManager::Create - %d",KErrNone)); |
|
1737 |
return(KErrNone); |
|
1738 |
} |
|
1739 |
||
1740 |
/** |
|
1741 |
Copies the contents of the Buffer Manager's configuration into aBufConfig |
|
1742 |
@param aBufConfig The buffer that the data is copied into. |
|
1743 |
*/ |
|
1744 |
void DBufferManager::GetBufConfig(TCameraSharedChunkBufConfig& aBufConfig) |
|
1745 |
{ |
|
1746 |
__KTRACE_CAM(Kern::Printf(">DBufferManager::GetBufConfig")); |
|
1747 |
TInt numBuffers=iNumBuffers; |
|
1748 |
if (numBuffers<=0) |
|
1749 |
return; |
|
1750 |
||
1751 |
SBufSpecList* bufferSpec=&aBufConfig.iSpec; |
|
1752 |
||
1753 |
while (numBuffers--) |
|
1754 |
{ |
|
1755 |
bufferSpec[numBuffers].iBufferOffset=iImageBuffer[numBuffers].iChunkOffset; |
|
1756 |
bufferSpec[numBuffers].iBufferId=iImageBuffer[numBuffers].iId; |
|
1757 |
} |
|
1758 |
||
1759 |
aBufConfig.iNumBuffers=iNumBuffers; |
|
1760 |
aBufConfig.iBufferSizeInBytes=iImageBuffer[0].iSize; // They're all the same size - so read from the 1st one. |
|
1761 |
aBufConfig.iFlags|=KScFlagBufOffsetListInUse; |
|
1762 |
return; |
|
1763 |
} |
|
1764 |
||
1765 |
/** |
|
1766 |
Allocate an array of buffer objects, - one for each buffer contained within the shared chunk. |
|
1767 |
@param aNumBuffers The number of buffer objects required. |
|
1768 |
@return KErrNone if successful, otherwise one of the other system wide error codes. |
|
1769 |
@pre The thread must be in a critical section. |
|
1770 |
*/ |
|
1771 |
TInt DBufferManager::CreateBufferLists(TInt aNumBuffers) |
|
1772 |
{ |
|
1773 |
__KTRACE_CAM(Kern::Printf(">DBufferManager::CreateBufferLists(Bufs-%d)",aNumBuffers)); |
|
1774 |
||
1775 |
// Construct the array of buffers. |
|
1776 |
iNumBuffers=aNumBuffers; |
|
1777 |
iImageBuffer=new TImageBuffer[aNumBuffers]; |
|
1778 |
if (!iImageBuffer) |
|
1779 |
return(KErrNoMemory); |
|
1780 |
return(KErrNone); |
|
1781 |
} |
|
1782 |
||
1783 |
TInt DBufferManager::CommitMemoryForBuffer(TInt aChunkOffset,TInt aSize,TBool& aIsContiguous) |
|
1784 |
{ |
|
1785 |
__KTRACE_CAM(Kern::Printf(">DBufferManager::CommitMemoryForBuffer(Offset-%x,Sz-%d)",aChunkOffset,aSize)); |
|
1786 |
||
1787 |
// Try for physically contiguous memory first. |
|
1788 |
TPhysAddr physicalAddress; |
|
1789 |
TInt r=Kern::ChunkCommitContiguous(iChunk,aChunkOffset,aSize,physicalAddress); |
|
1790 |
if (r==KErrNone) |
|
1791 |
{ |
|
1792 |
aIsContiguous=ETrue; |
|
1793 |
return(r); |
|
1794 |
} |
|
1795 |
||
1796 |
// Commit memory that isn't contiguous instead. |
|
1797 |
aIsContiguous=EFalse; |
|
1798 |
r=Kern::ChunkCommit(iChunk,aChunkOffset,aSize); |
|
1799 |
return(r); |
|
1800 |
} |
|
1801 |
||
1802 |
/** |
|
1803 |
Reset all image buffer lists to reflect the state at the start of the image capture process. |
|
1804 |
@pre The buffer/request queue mutex must be held. |
|
1805 |
*/ |
|
1806 |
void DBufferManager::Reset() |
|
1807 |
{ |
|
1808 |
__KTRACE_CAM(Kern::Printf(">DBufferManager::Reset")); |
|
1809 |
||
1810 |
TImageBuffer* pBuf; |
|
1811 |
||
1812 |
// Before reseting buffer lists, purge the cache for all cached buffers currently in use by client. |
|
1813 |
pBuf=(TImageBuffer*)iInUseBufferQ.First(); |
|
1814 |
SDblQueLink* anchor=&iInUseBufferQ.iA; |
|
1815 |
while (pBuf!=anchor) |
|
1816 |
{ |
|
1817 |
Purge(pBuf); |
|
1818 |
pBuf=(TImageBuffer*)pBuf->iNext; |
|
1819 |
} |
|
1820 |
||
1821 |
// Start by reseting all the lists. |
|
1822 |
iFreeBufferQ.iA.iNext=iFreeBufferQ.iA.iPrev=&iFreeBufferQ.iA; |
|
1823 |
iCompletedBufferQ.iA.iNext=iCompletedBufferQ.iA.iPrev=&iCompletedBufferQ.iA; |
|
1824 |
iInUseBufferQ.iA.iNext=iInUseBufferQ.iA.iPrev=&iInUseBufferQ.iA; |
|
1825 |
||
1826 |
// Set the pointers to the current and the next record buffers. |
|
1827 |
pBuf=iImageBuffer; // This is the first buffer |
|
1828 |
iCurrentBuffer=pBuf++; |
|
1829 |
iNextBuffer = pBuf++; |
|
1830 |
||
1831 |
// Add all other buffers to the free list. |
|
1832 |
TImageBuffer* bufferLimit=iImageBuffer+iNumBuffers; |
|
1833 |
while(pBuf<bufferLimit) |
|
1834 |
iFreeBufferQ.Add(pBuf++); |
|
1835 |
} |
|
1836 |
||
1837 |
/** |
|
1838 |
Purge the cache for a cached image buffer. |
|
1839 |
@param aBuffer The buffer to be purged. |
|
1840 |
*/ |
|
1841 |
void DBufferManager::Purge(TImageBuffer* aBuffer) |
|
1842 |
{ |
|
1843 |
aBuffer->SyncMemoryBeforeDmaRead(); |
|
1844 |
} |
|
1845 |
||
1846 |
/** |
|
1847 |
Update buffer lists after an image has been captured. |
|
1848 |
@param aResult The result of the image capture operation that has just completed. |
|
1849 |
@return A pointer to the next image buffer for capture - or NULL if none are available. |
|
1850 |
@pre The buffer/request queue mutex must be held. |
|
1851 |
*/ |
|
1852 |
TImageBuffer* DBufferManager::SetImageCaptured(TInt aResult) |
|
1853 |
{ |
|
1854 |
// Take a copy of the buffer with the image just captured. |
|
1855 |
__ASSERT_DEBUG(iCurrentBuffer,Kern::Fault(KCameraLddPanic,__LINE__)); |
|
1856 |
TImageBuffer* cur=iCurrentBuffer; |
|
1857 |
||
1858 |
// Make the queued buffer the current one. |
|
1859 |
iCurrentBuffer=iNextBuffer; |
|
1860 |
||
1861 |
// Now we need to identify the next image buffer to queue. |
|
1862 |
iNextBuffer=NextAvailableForCapture(); |
|
1863 |
||
1864 |
// Now add the buffer with the image just captured to the 'completed' list. |
|
1865 |
if (cur) |
|
1866 |
{ |
|
1867 |
cur->iResult=aResult; // Store the result of the capture operation in the image buffer object. |
|
1868 |
iCompletedBufferQ.Add(cur); |
|
1869 |
} |
|
1870 |
||
1871 |
__KTRACE_CAM(Kern::Printf("<DBufferManager::SetImageCaptured(buf=%08x)-%d",cur->iChunkOffset,aResult)); |
|
1872 |
return(iNextBuffer); |
|
1873 |
} |
|
1874 |
||
1875 |
/** |
|
1876 |
Remove from the buffer lists the next buffer that is available to queue for transfer. |
|
1877 |
@return A pointer to the next image buffer for capture - or NULL if none are available. |
|
1878 |
@pre The buffer/request queue mutex must be held. |
|
1879 |
*/ |
|
1880 |
TImageBuffer* DBufferManager::NextAvailableForCapture() |
|
1881 |
{ |
|
1882 |
// We need to identify the next image buffer to queue. Try to get one from the 'free' list. |
|
1883 |
TImageBuffer* buffer=(TImageBuffer*)iFreeBufferQ.GetFirst(); |
|
1884 |
#ifdef DISCARD_COMPLETED_TO_AVOID_OVERFLOW |
|
1885 |
// If there are none left on the 'free' list then take one from the completed list. |
|
1886 |
if (!buffer) |
|
1887 |
buffer=(TImageBuffer*)iCompletedBufferQ.GetFirst(); |
|
1888 |
#endif |
|
1889 |
return(buffer); |
|
1890 |
} |
|
1891 |
||
1892 |
/** |
|
1893 |
Get the next image from the 'completed' capture list. If there is no error associated with the buffer, |
|
1894 |
make it 'in use' by the client. Otherwise, return the buffer to the free list. |
|
1895 |
@param aRemoveLast If true, the buffer is removed from the tail of the completed capture list, otherwise |
|
1896 |
it is removed from the head of this list. |
|
1897 |
@return A pointer to the next completed image buffer - or NULL if there is no buffer available. |
|
1898 |
@pre The buffer/request queue mutex must be held. |
|
1899 |
*/ |
|
1900 |
TImageBuffer* DBufferManager::GetImageForClient(TBool aRemoveLast) |
|
1901 |
{ |
|
1902 |
__KTRACE_CAM(Kern::Printf("<DBufferManager::GetImageForClient")); |
|
1903 |
TImageBuffer* buffer=NULL; |
|
1904 |
if (!iCompletedBufferQ.IsEmpty()) |
|
1905 |
{ |
|
1906 |
buffer = (aRemoveLast) ? (TImageBuffer*)iCompletedBufferQ.Last() : (TImageBuffer*)iCompletedBufferQ.First(); |
|
1907 |
buffer->Deque(); |
|
1908 |
||
1909 |
if (buffer->iResult==KErrNone) |
|
1910 |
iInUseBufferQ.Add(buffer); |
|
1911 |
else |
|
1912 |
iFreeBufferQ.Add(buffer); |
|
1913 |
} |
|
1914 |
return(buffer); |
|
1915 |
} |
|
1916 |
||
1917 |
/** |
|
1918 |
Release (move to free list) the 'in use' image specified by the given chunk offset. |
|
1919 |
@param aChunkOffset The chunk offset corresponding to the buffer to be freed. |
|
1920 |
@return The freed image buffer, or NULL if no 'in use' buffer had the specified chunk offset. |
|
1921 |
@return KErrNone if buffer moved to the free list; |
|
1922 |
1 if the buffer needs to be queued straight away |
|
1923 |
KErrArgument if no 'in use' buffer had the specified chunk offset; |
|
1924 |
@pre The buffer/request queue mutex must be held. |
|
1925 |
*/ |
|
1926 |
TInt DBufferManager::ReleaseImage(TInt aChunkOffset) |
|
1927 |
{ |
|
1928 |
__KTRACE_CAM(Kern::Printf(">DBufferManager::ReleaseImage(chunkOffset=%08x)",aChunkOffset)); |
|
1929 |
TInt r=KErrArgument; |
|
1930 |
||
1931 |
// Scan 'in use' list for the image buffer |
|
1932 |
TImageBuffer* pBuf; |
|
1933 |
pBuf=(TImageBuffer*)iInUseBufferQ.First(); |
|
1934 |
SDblQueLink* anchor=&iInUseBufferQ.iA; |
|
1935 |
while (pBuf!=anchor && pBuf->iChunkOffset!=aChunkOffset) |
|
1936 |
pBuf=(TImageBuffer*)pBuf->iNext; |
|
1937 |
||
1938 |
if (pBuf!=anchor) |
|
1939 |
{ |
|
1940 |
// Buffer found in 'in-use' list. |
|
1941 |
if (!iNextBuffer) |
|
1942 |
{ |
|
1943 |
// We need to signal the pdd to queue this buffer straight away. |
|
1944 |
iNextBuffer=(TImageBuffer*)pBuf->Deque(); |
|
1945 |
r=1; |
|
1946 |
} |
|
1947 |
else |
|
1948 |
{ |
|
1949 |
// Move buffer to the free list. |
|
1950 |
iFreeBufferQ.Add(pBuf->Deque()); |
|
1951 |
r=KErrNone; |
|
1952 |
} |
|
1953 |
} |
|
1954 |
||
1955 |
__KTRACE_CAM(Kern::Printf("<DBufferManager::ReleaseImage(buf=%08x)",((pBuf!=anchor) ? pBuf->iChunkOffset : -1))); |
|
1956 |
return(r); |
|
1957 |
} |
|
1958 |
||
1959 |
/** |
|
1960 |
Find the 'in use' image specified by the given chunk offset |
|
1961 |
@param aChunkOffset The chunk offset corresponding to the buffer to be freed |
|
1962 |
@return The image buffer, or NULL if no 'in use' buffer had the specified chunk offset |
|
1963 |
@pre The buffer/request queue mutex must be held. |
|
1964 |
*/ |
|
1965 |
TImageBuffer* DBufferManager::FindInUseImage(TInt aChunkOffset) |
|
1966 |
{ |
|
1967 |
// Scan 'in use' list for the image buffer |
|
1968 |
TImageBuffer* pBuf; |
|
1969 |
pBuf=(TImageBuffer*)iInUseBufferQ.First(); |
|
1970 |
SDblQueLink* anchor=&iInUseBufferQ.iA; |
|
1971 |
while (pBuf!=anchor && pBuf->iChunkOffset!=aChunkOffset) |
|
1972 |
pBuf=(TImageBuffer*)pBuf->iNext; |
|
1973 |
||
1974 |
return((pBuf!=anchor)?pBuf:NULL); |
|
1975 |
} |
|
1976 |
||
1977 |
/** |
|
1978 |
Constructor for the image buffer class. |
|
1979 |
Clears all member data |
|
1980 |
*/ |
|
1981 |
TImageBuffer::TImageBuffer() |
|
1982 |
{ |
|
1983 |
memclr(this,sizeof(*this)); |
|
1984 |
} |
|
1985 |
||
1986 |
/** |
|
1987 |
Destructor for the image buffer class. |
|
1988 |
*/ |
|
1989 |
TImageBuffer::~TImageBuffer() |
|
1990 |
{ |
|
1991 |
delete[] iPhysicalPages; |
|
1992 |
} |
|
1993 |
||
1994 |
/** |
|
1995 |
Second stage constructor for the image buffer class - get information on the memory |
|
1996 |
allocated to this buffer. |
|
1997 |
@param aChunk The chunk into which the memory is to be commited |
|
1998 |
@param aOffset The offset within aChunk for the start of the comitted memory. |
|
1999 |
Must be a multiple of the MMU page size. |
|
2000 |
@param aSize The number of bytes of memory commited. |
|
2001 |
Must be a multiple of the MMU page size. |
|
2002 |
@return KErrNone if successful, otherwise one of the other system wide error codes. |
|
2003 |
@pre The thread must be in a critical section. |
|
2004 |
*/ |
|
2005 |
TInt TImageBuffer::Create(DChunk* aChunk,TInt aOffset,TInt aSize, TInt aId, TBool aIsContiguous) |
|
2006 |
{ |
|
2007 |
__KTRACE_CAM(Kern::Printf(">TImageBuffer::Create(Off-%x,Sz-%d,Contig-%d)",aOffset,aSize,aIsContiguous)); |
|
2008 |
||
2009 |
// Save info. on the chunk the buffer is in, and the offset and size of the buffer. |
|
2010 |
iChunk=aChunk; |
|
2011 |
iChunkOffset=aOffset; |
|
2012 |
iId=aId; |
|
2013 |
iSize=aSize; |
|
2014 |
||
2015 |
TInt r=KErrNone; |
|
2016 |
iPhysicalPages=NULL; |
|
2017 |
if (!aIsContiguous) |
|
2018 |
{ |
|
2019 |
// Allocate an array for a list of the physical pages. |
|
2020 |
iPhysicalPages = new TPhysAddr[aSize/Kern::RoundToPageSize(1)+2]; |
|
2021 |
if (!iPhysicalPages) |
|
2022 |
r=KErrNoMemory; |
|
2023 |
} |
|
2024 |
||
2025 |
if (r==KErrNone) |
|
2026 |
{ |
|
2027 |
// Get the physical addresses of the pages in the buffer. |
|
2028 |
TUint32 mapAttr; |
|
2029 |
r=Kern::ChunkPhysicalAddress(aChunk,aOffset,aSize,iLinearAddress,mapAttr,iPhysicalAddress,iPhysicalPages); |
|
2030 |
// r = 0 or 1 on success. (1 meaning the physical pages are not contiguous). |
|
2031 |
if (r==1) |
|
2032 |
{ |
|
2033 |
// The physical pages are not contiguous. |
|
2034 |
iPhysicalAddress=KPhysAddrInvalid; // Mark the physical address as invalid. |
|
2035 |
r=(aIsContiguous) ? KErrGeneral : KErrNone; |
|
2036 |
} |
|
2037 |
if (r==0) |
|
2038 |
{ |
|
2039 |
delete[] iPhysicalPages; // We shouldn't retain this info. if the physical pages are contiguous. |
|
2040 |
iPhysicalPages=NULL; |
|
2041 |
} |
|
2042 |
} |
|
2043 |
__KTRACE_CAM(Kern::Printf("<TImageBuffer::Create - %d",r)); |
|
2044 |
return(r); |
|
2045 |
} |
|
2046 |
||
2047 |
/** |
|
2048 |
Prepares a cacheable buffer for use by the DMA engine, before an image capture. |
|
2049 |
*/ |
|
2050 |
void TImageBuffer::SyncMemoryBeforeDmaRead() |
|
2051 |
{ |
|
2052 |
#ifndef __WINS__ |
|
2053 |
if (iChunk->iMapAttr&EMapAttrCachedMax) |
|
2054 |
{ |
|
2055 |
Cache::SyncMemoryBeforeDmaRead(iLinearAddress,iSize); |
|
2056 |
} |
|
2057 |
#endif |
|
2058 |
} |
|
2059 |
||
2060 |
/** |
|
2061 |
Prepare a cacheable buffer for use by the CPU, after an image capture using DMA. |
|
2062 |
*/ |
|
2063 |
void TImageBuffer::SyncMemoryAfterDmaRead() |
|
2064 |
{ |
|
2065 |
#ifndef __WINS__ |
|
2066 |
if (iChunk->iMapAttr&EMapAttrCachedMax) |
|
2067 |
{ |
|
2068 |
Cache::SyncMemoryAfterDmaRead(iLinearAddress,iSize); |
|
2069 |
} |
|
2070 |
#endif |
|
2071 |
} |
|
2072 |
||
2073 |
/** |
|
2074 |
Constructor for the capture request queue. |
|
2075 |
*/ |
|
2076 |
TCameraScRequestQueue::TCameraScRequestQueue(NFastMutex* aMutexPtr) |
|
2077 |
: iMutexPtr(aMutexPtr) |
|
2078 |
{ |
|
2079 |
iOwningThread=NULL; |
|
2080 |
memclr(&iRequest[0],sizeof(TCameraScRequest*)*KMaxCamScRequestsPending); |
|
2081 |
} |
|
2082 |
||
2083 |
/** |
|
2084 |
Destructor for the capture request queue. |
|
2085 |
*/ |
|
2086 |
TCameraScRequestQueue::~TCameraScRequestQueue() |
|
2087 |
{ |
|
2088 |
for (TInt i=0 ; i<KMaxCamScRequestsPending ; i++) |
|
2089 |
delete iRequest[i]; |
|
2090 |
} |
|
2091 |
||
2092 |
/** |
|
2093 |
Second stage constructor for the capture request queue. |
|
2094 |
@param anOwningThread A pointer to the owning client thread. |
|
2095 |
@return KErrNone if successful; |
|
2096 |
KErrNoMemory if unable to allocate memory for the capture request queue. |
|
2097 |
@pre The thread must be in a critical section. |
|
2098 |
*/ |
|
2099 |
TInt TCameraScRequestQueue::Create(DThread* anOwningThread) |
|
2100 |
{ |
|
2101 |
iOwningThread=anOwningThread; |
|
2102 |
||
2103 |
// Create the set of available request objects and add them to the unused request queue. |
|
2104 |
for (TInt i=0 ; i<KMaxCamScRequestsPending ; i++) |
|
2105 |
{ |
|
2106 |
iRequest[i]=new TCameraScRequest; |
|
2107 |
if (!iRequest[i]) |
|
2108 |
return(KErrNoMemory); |
|
2109 |
iUnusedRequestQ.Add(iRequest[i]); |
|
2110 |
} |
|
2111 |
||
2112 |
return(KErrNone); |
|
2113 |
} |
|
2114 |
||
2115 |
/** |
|
2116 |
Store a request status pointer onto the tail of the capture request queue. |
|
2117 |
@param aStatus The request status pointer to be stored. |
|
2118 |
@return KErrNone if successful; |
|
2119 |
KErrGeneral if the limit on the number of pending capture request (KMaxCamScRequestsPending) would be exceeded. |
|
2120 |
@pre The buffer/request queue mutex must be held. |
|
2121 |
*/ |
|
2122 |
TInt TCameraScRequestQueue::Add(TRequestStatus* aStatus) |
|
2123 |
{ |
|
2124 |
TCameraScRequest* req=(TCameraScRequest*)iUnusedRequestQ.GetFirst(); |
|
2125 |
if (!req) |
|
2126 |
return(KErrGeneral); // Must have exceeded KMaxCamScRequestsPending |
|
2127 |
||
2128 |
req->iStatus=aStatus; |
|
2129 |
iPendRequestQ.Add(req); |
|
2130 |
return(KErrNone); |
|
2131 |
} |
|
2132 |
||
2133 |
/** |
|
2134 |
Retrieve the next request status pointer from the head of the capture request queue. |
|
2135 |
@return The request status pointer removed or NULL if the list is empty. |
|
2136 |
@pre The buffer/request queue mutex must be held. |
|
2137 |
*/ |
|
2138 |
TRequestStatus* TCameraScRequestQueue::Remove() |
|
2139 |
{ |
|
2140 |
TRequestStatus* status=NULL; |
|
2141 |
TCameraScRequest* req=(TCameraScRequest*)iPendRequestQ.GetFirst(); |
|
2142 |
if (req) |
|
2143 |
{ |
|
2144 |
status=req->iStatus; |
|
2145 |
iUnusedRequestQ.Add(req); |
|
2146 |
} |
|
2147 |
return(status); |
|
2148 |
} |
|
2149 |
||
2150 |
/** |
|
2151 |
Remove a specifc request status pointer from the the capture request queue, completing it with a 'KErrCancel' completion reason. |
|
2152 |
@param aStatus The request status pointer to be completed. |
|
2153 |
@pre The buffer/request queue mutex must be held. |
|
2154 |
*/ |
|
2155 |
void TCameraScRequestQueue::Cancel(TRequestStatus* aStatus) |
|
2156 |
{ |
|
2157 |
// Find the entry concerned |
|
2158 |
TCameraScRequest* req=(TCameraScRequest*)iPendRequestQ.First(); |
|
2159 |
SDblQueLink* anchor=&iPendRequestQ.iA; |
|
2160 |
while (req!=anchor && req->iStatus!=aStatus) |
|
2161 |
req=(TCameraScRequest*)req->iNext; |
|
2162 |
if (req==anchor) |
|
2163 |
return; |
|
2164 |
||
2165 |
// Remove and cancel it. |
|
2166 |
req->Deque(); |
|
2167 |
iUnusedRequestQ.Add(req); |
|
2168 |
NKern::FMSignal(iMutexPtr); // Release the request list mutex while we complete the request. This is safe. |
|
2169 |
Kern::RequestComplete(iOwningThread,req->iStatus,KErrCancel); |
|
2170 |
NKern::FMWait(iMutexPtr); // Re-acquire the request list mutex. |
|
2171 |
} |
|
2172 |
||
2173 |
/** |
|
2174 |
Remove each request status pointer from the the capture request queue, completing each with a 'KErrCancel' completion reason. |
|
2175 |
@pre The buffer/request queue mutex must be held. |
|
2176 |
*/ |
|
2177 |
void TCameraScRequestQueue::CancelAll() |
|
2178 |
{ |
|
2179 |
||
2180 |
TRequestStatus* status; |
|
2181 |
while ((status=Remove())!=NULL) |
|
2182 |
{ |
|
2183 |
NKern::FMSignal(iMutexPtr); // Release the request list mutex while we complete the request. This is safe. |
|
2184 |
Kern::RequestComplete(iOwningThread,status,KErrCancel); |
|
2185 |
NKern::FMWait(iMutexPtr); // Re-acquire the request list mutex. |
|
2186 |
} |
|
2187 |
} |
|
2188 |
||
2189 |
/** |
|
2190 |
Constructor for the camera driver power handler class. |
|
2191 |
@param aChannel A pointer to the camera driver logical channel which owns this power handler. |
|
2192 |
*/ |
|
2193 |
DCameraScPowerHandler::DCameraScPowerHandler(DCameraScLdd* aChannel) |
|
2194 |
: DPowerHandler(KDevCameraScName), |
|
2195 |
iChannel(aChannel) |
|
2196 |
{ |
|
2197 |
} |
|
2198 |
||
2199 |
/** |
|
2200 |
A request from the power manager for the power down of the camera device. |
|
2201 |
This is called during a transition of the phone into standby or power off. |
|
2202 |
@param aState The target power state; can be EPwStandby or EPwOff only. |
|
2203 |
*/ |
|
2204 |
void DCameraScPowerHandler::PowerDown(TPowerState aPowerState) |
|
2205 |
{ |
|
2206 |
(void)aPowerState; |
|
2207 |
__KTRACE_CAM(Kern::Printf(">DCameraScPowerHandler::PowerDown(State-%d)",aPowerState)); |
|
2208 |
||
2209 |
// Power-down involves hardware access so queue a DFC to perform this from the driver thread. |
|
2210 |
iChannel->iPowerDownDfc.Enque(); |
|
2211 |
} |
|
2212 |
||
2213 |
/** |
|
2214 |
A request from the power manager for the power up of the camera device. |
|
2215 |
This is called during a transition of the phone out of standby. |
|
2216 |
*/ |
|
2217 |
void DCameraScPowerHandler::PowerUp() |
|
2218 |
{ |
|
2219 |
__KTRACE_CAM(Kern::Printf(">DCameraScPowerHandler::PowerUp")); |
|
2220 |
||
2221 |
// Power-up involves hardware access so queue a DFC to perform this from the driver thread. |
|
2222 |
iChannel->iPowerUpDfc.Enque(); |
|
2223 |
} |