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// Copyright (c) 1996-2009 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 "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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// wins\specific\lffsdev.cpp
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//
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//
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#include <flash_media.h>
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#include <emulator.h>
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#include <property.h>
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#define FLASH_FAULT() Kern::Fault("LFFSDEV",__LINE__)
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//#define M18_EMULATION // Test for Control Mode operation
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/********************************************
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* Driver definitions
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********************************************/
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/** LFFS image name */
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const CHAR KLfsFileName[] = "LFSLDRV.BIN";
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//-- default values for LFFS related entries in "epoc.ini" file
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const TInt KDefaultFlashSize = 0x400000; //-- "FlashSize" entry, default 4MB
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const TInt KEraseBlockSize = 0x20000; //-- "FlashEraseSize" entry, default 128KB
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const TUint32 KFlashEraseTime = 1000000; //-- "FlashEraseTime" entry, default 1s
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const TInt KWriteBlockSize = 64; //-- "FlashWriteSize" entry
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const TInt KFlashWriteTime = 406; //-- "FlashWriteTime" entry, default 406us
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const TInt KResumeTime = 5000; //-- "FlashResumeTime" entry, default 5ms
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//-- other possible LFFS related entries in "epoc.ini" file:
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//-- "FlashHoldOffTime" default value = iEraseTime/10
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//-- "FlashForceImgMount" default value = 0. If not 0 LFFS image will be mounted as it is, even if it doesn't have TLfsParams structure in the end.
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//-- Moreover, it won't be zero filled and TLfsParams structure won't be written at the end of the image file.
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//-- shall be useful for dealing with real images from the real devices
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/**
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This cunning structure is supposed to be at the very end of the LFFS image file. If it is not foung there,
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the image gets zero-filled (depends on "FlashForceImgMount" flag in epoc.ini).
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*/
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struct TLfsParams
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{
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TInt iEraseSize;
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};
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#ifdef _DEBUG
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/***************************************************
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* ControlIO command types - for debug builds, only
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***************************************************/
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enum TCtrlIoTypes
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{
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//KCtrlIoRww=0,
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KCtrlIoTimeout=1
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};
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#endif
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const TInt KDataBufSize=1024;
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/********************************************
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* Media driver class
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********************************************/
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class DMediaDriverFlashWin32 : public DMediaDriverFlash
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{
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public:
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enum TState
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{
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EIdle=0,
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EWriting=1,
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EEraseNoSuspend=2,
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EErase=3,
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ESuspendPending=4,
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ESuspending=5,
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ESuspended=6,
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EErasePending=7
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};
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public:
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DMediaDriverFlashWin32(TInt aMediaId);
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public:
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// replacing pure virtual - FLASH device specific stuff
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virtual TInt Initialise();
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virtual TUint32 EraseBlockSize();
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virtual TUint32 TotalSize();
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virtual TInt DoRead();
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virtual TInt DoWrite();
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virtual TInt DoErase();
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virtual TInt Caps(TLocalDriveCapsV2& caps);
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public:
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void HandleEvent();
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void StartTimer(TInt aMicros);
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void StartErase();
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void SuspendErase();
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void CompleteErase();
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void CompleteWrite();
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void CompleteSuspend();
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void StartPendingRW();
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void ReadFlashParameters();
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public:
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static void TimerFn(TAny* aPtr);
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static void EventDfc(TAny* aPtr);
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#ifdef _DEBUG
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public:
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enum TCtrlIoState {/*EIdle=0,ECtrlIoWaitWr=1,ECtrlIoWaitRd=2,ECtrlIoWrActive=3,*/ECtrlIoTimeOutPrep=4};
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TInt ControlIO(TInt aCommand,TAny* aParam1,TAny* /*aParam2*/);
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TInt Request(TLocDrvRequest& m);
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#endif
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public:
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TState iState;
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TInt iSize;
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TInt iEraseBlockSize;
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TInt iEraseTime;
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TInt iSuspendHoldOffTime;
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TInt iResumeTime;
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TInt iWriteBlockSize;
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TInt iWriteTime;
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HANDLE iFile;
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HANDLE iMapping;
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TUint8* iBase;
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TUint8* iData; // data being written
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NTimer iTimer;
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TDfc iEventDfc;
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TUint32 iTickPeriod;
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TUint32 iEraseCounter;
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TUint32 iErasePos;
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TInt iTimerExtra;
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#ifdef _DEBUG
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public:
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TUint8 iCtrlIoState;
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#endif
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};
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DMediaDriverFlashWin32::DMediaDriverFlashWin32(TInt aMediaId)
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: DMediaDriverFlash(aMediaId),
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iTimer(&TimerFn,this),
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iEventDfc(&EventDfc,this,NULL,2),
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iTickPeriod(NKern::TickPeriod())
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{
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// iState=EIdle;
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#ifdef _DEBUG
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//iCtrlIoState=EIdle;
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#endif
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}
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void DMediaDriverFlashWin32::ReadFlashParameters()
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//
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// Read the flash parameters from the ini file, or use defaults
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//
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{
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iSize = Property::GetInt("FlashSize", KDefaultFlashSize);
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TInt nblocks = Property::GetInt("FlashEraseBlocks", 0);
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if (nblocks == 0)
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nblocks = iSize/Property::GetInt("FlashEraseSize", KEraseBlockSize);
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iEraseBlockSize = iSize / nblocks;
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__ASSERT_ALWAYS(iEraseBlockSize * nblocks == iSize, FLASH_FAULT());
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__ASSERT_ALWAYS((iEraseBlockSize & (iEraseBlockSize-1)) == 0, FLASH_FAULT());
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iEraseTime = Property::GetInt("FlashEraseTime", KFlashEraseTime);
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iSuspendHoldOffTime = Property::GetInt("FlashHoldOffTime", iEraseTime/10);
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iResumeTime = Property::GetInt("FlashResumeTime", KResumeTime);
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iWriteBlockSize = Property::GetInt("FlashWriteSize", KWriteBlockSize);
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__ASSERT_ALWAYS((iWriteBlockSize & (iWriteBlockSize-1)) == 0, FLASH_FAULT());
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iWriteTime = Property::GetInt("FlashWriteTime", KFlashWriteTime);
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}
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TInt DMediaDriverFlashWin32::Initialise()
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{
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iEventDfc.SetDfcQ(iPrimaryMedia->iDfcQ);
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iData=(TUint8*)Kern::Alloc(KDataBufSize);
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if (!iData)
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return KErrNoMemory;
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ReadFlashParameters();
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// locate/open the file that models the flash
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CHAR filename[MAX_PATH];
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strcpy(filename, Property::GetString("EmulatorMediaPath"));
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if (!Emulator::CreateAllDirectories(filename))
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return Emulator::LastError();
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strcat(filename, KLfsFileName);
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iFile = CreateFileA(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_ALWAYS, FILE_FLAG_RANDOM_ACCESS, NULL);
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if (iFile == INVALID_HANDLE_VALUE)
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return Emulator::LastError();
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TLfsParams p;
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p.iEraseSize = -1;
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DWORD bytes;
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TBool valid;
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//-- try to read TLfsParams structure from the end of the image file.
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if (SetFilePointer(iFile, iSize, NULL, FILE_BEGIN) != -1
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&& ReadFile(iFile, &p, sizeof(TLfsParams), &bytes, NULL)
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&& p.iEraseSize == iEraseBlockSize)
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{
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valid = ETrue; //-- read it OK.
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}
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else
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{//-- couldn't read TLfsParams structure from the end of the image file.
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//-- if "FlashForceImgMount" parameter from epoc.ini is 0 or not present,
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//-- zero-fill the lffs image file and write TLfsParams structure at the end of the file.
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const TInt forceImgMount = Property::GetInt("FlashForceImgMount", 0);
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if(!forceImgMount)
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{
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p.iEraseSize = iEraseBlockSize;
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if (SetFilePointer(iFile,iSize, NULL, FILE_BEGIN) == -1
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|| !WriteFile(iFile, &p, sizeof(p), &bytes, NULL)
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|| !SetEndOfFile(iFile))
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return Emulator::LastError();
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valid = EFalse;
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}
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else
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{//-- mount LFFS image forcingly.
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valid = ETrue;
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}
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}
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iMapping = CreateFileMappingA(iFile, NULL, PAGE_READWRITE, 0, iSize, NULL);
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if (iMapping == NULL)
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return Emulator::LastError();
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iBase = (TUint8*)MapViewOfFile(iMapping, FILE_MAP_WRITE, 0, 0, iSize);
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if (iBase == NULL)
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return Emulator::LastError();
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//-- zero-fill media image it doesn't contain TLfsParams data at the very end.
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if (!valid)
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{
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memclr(iBase, iSize);
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}
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return KErrNone;
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}
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TUint32 DMediaDriverFlashWin32::EraseBlockSize()
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{
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return iEraseBlockSize;
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}
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TUint32 DMediaDriverFlashWin32::TotalSize()
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{
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return iSize;
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}
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TInt DMediaDriverFlashWin32::DoRead()
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{
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if (iWriteReq)
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return 1; // write in progress so defer read
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__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:DoRead"));
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if (iState==EErasePending)
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{
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iTimer.Cancel();
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iState = ESuspended;
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}
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if (iState==EIdle || iState==ESuspended)
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{
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// can do the read now
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TInt pos=(TInt)iReadReq->Pos();
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TInt len=(TInt)iReadReq->Length();
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TPtrC8 des(iBase+pos,len);
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TInt r=iReadReq->WriteRemote(&des,0);
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Complete(EReqRead,r);
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if (iState==ESuspended)
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StartErase();
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}
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else if (iState==EErase)
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{
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// erase in progress - suspend it
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SuspendErase();
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}
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else if (iState==EEraseNoSuspend)
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iState=ESuspendPending;
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// wait for suspend to complete
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return KErrNone;
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}
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TInt DMediaDriverFlashWin32::DoWrite()
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{
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if (iReadReq)
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return 1; // read in progress so defer write
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if (iState==EErasePending)
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{
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iTimer.Cancel();
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iState = ESuspended;
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}
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if (iState==EIdle || iState==ESuspended)
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{
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// can start the write now
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__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:Write Pos=%08x Length=%08x RemDesOff=%08x",
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(TInt)iWriteReq->Pos(),(TInt)iWriteReq->Length(),iWriteReq->RemoteDesOffset()));
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if (iState==EIdle)
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iState=EWriting;
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TInt pos = (TInt)iWriteReq->Pos();
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TInt end = pos + (TInt)iWriteReq->Length();
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pos &= ~(iWriteBlockSize-1);
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end = (end + iWriteBlockSize-1) & ~(iWriteBlockSize-1);
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StartTimer(((end-pos)/iWriteBlockSize) * iWriteTime);
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}
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else if (iState==EErase)
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{
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// erase in progress - suspend it
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SuspendErase();
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}
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335 |
else if (iState==EEraseNoSuspend)
|
sl@0
|
336 |
iState=ESuspendPending;
|
sl@0
|
337 |
// wait for suspend to complete
|
sl@0
|
338 |
return KErrNone;
|
sl@0
|
339 |
}
|
sl@0
|
340 |
|
sl@0
|
341 |
void DMediaDriverFlashWin32::CompleteWrite()
|
sl@0
|
342 |
//
|
sl@0
|
343 |
// Do the actual write in the completion
|
sl@0
|
344 |
// Transfer data in blocks from the client and AND it to the 'flash'
|
sl@0
|
345 |
//
|
sl@0
|
346 |
{
|
sl@0
|
347 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:WriteComplete"));
|
sl@0
|
348 |
|
sl@0
|
349 |
TInt r = KErrNone;
|
sl@0
|
350 |
TUint8* flash = iBase + (TInt)iWriteReq->Pos();
|
sl@0
|
351 |
TInt len = (TInt)iWriteReq->Length();
|
sl@0
|
352 |
TInt offset = 0;
|
sl@0
|
353 |
while (len > 0)
|
sl@0
|
354 |
{
|
sl@0
|
355 |
TInt size = Min(len, KDataBufSize);
|
sl@0
|
356 |
TPtr8 des(iData,size);
|
sl@0
|
357 |
r = iWriteReq->ReadRemote(&des, offset);
|
sl@0
|
358 |
if (r!=KErrNone)
|
sl@0
|
359 |
break;
|
sl@0
|
360 |
len -= size;
|
sl@0
|
361 |
offset += size;
|
sl@0
|
362 |
const TUint8* ptr = iData;
|
sl@0
|
363 |
do
|
sl@0
|
364 |
{
|
sl@0
|
365 |
*flash++ &= *ptr++;
|
sl@0
|
366 |
} while (--size > 0);
|
sl@0
|
367 |
}
|
sl@0
|
368 |
|
sl@0
|
369 |
if (iState == EWriting)
|
sl@0
|
370 |
iState = EIdle;
|
sl@0
|
371 |
Complete(EReqWrite,r);
|
sl@0
|
372 |
if (iState == ESuspended)
|
sl@0
|
373 |
StartErase();
|
sl@0
|
374 |
}
|
sl@0
|
375 |
|
sl@0
|
376 |
TInt DMediaDriverFlashWin32::DoErase()
|
sl@0
|
377 |
{
|
sl@0
|
378 |
if (iReadReq || iWriteReq)
|
sl@0
|
379 |
return 1; // read or write in progress so defer this request
|
sl@0
|
380 |
TInt pos=(TUint32)iEraseReq->Pos();
|
sl@0
|
381 |
TInt len=(TUint32)iEraseReq->Length();
|
sl@0
|
382 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:DoErase %d@%08x",len,pos));
|
sl@0
|
383 |
if (len!=iEraseBlockSize)
|
sl@0
|
384 |
return KErrArgument; // only allow single-block erase
|
sl@0
|
385 |
if (pos & (iEraseBlockSize-1))
|
sl@0
|
386 |
return KErrArgument; // start position must be on erase block boundary
|
sl@0
|
387 |
__ASSERT_ALWAYS(iState==EIdle,FLASH_FAULT());
|
sl@0
|
388 |
iErasePos=pos;
|
sl@0
|
389 |
StartErase();
|
sl@0
|
390 |
return KErrNone;
|
sl@0
|
391 |
}
|
sl@0
|
392 |
|
sl@0
|
393 |
void DMediaDriverFlashWin32::StartTimer(TInt aMicros)
|
sl@0
|
394 |
{
|
sl@0
|
395 |
aMicros += iTimerExtra - (iTickPeriod>>1);
|
sl@0
|
396 |
if (aMicros < 0)
|
sl@0
|
397 |
{
|
sl@0
|
398 |
iTimerExtra = aMicros + (iTickPeriod>>1);
|
sl@0
|
399 |
iEventDfc.Enque(); // go off 'immediately'
|
sl@0
|
400 |
}
|
sl@0
|
401 |
else
|
sl@0
|
402 |
{
|
sl@0
|
403 |
iTimerExtra = 0;
|
sl@0
|
404 |
iTimer.OneShot(aMicros / iTickPeriod);
|
sl@0
|
405 |
}
|
sl@0
|
406 |
}
|
sl@0
|
407 |
|
sl@0
|
408 |
void DMediaDriverFlashWin32::TimerFn(TAny* aPtr)
|
sl@0
|
409 |
{
|
sl@0
|
410 |
((DMediaDriverFlashWin32*)aPtr)->iEventDfc.Add();
|
sl@0
|
411 |
}
|
sl@0
|
412 |
|
sl@0
|
413 |
void DMediaDriverFlashWin32::EventDfc(TAny* aPtr)
|
sl@0
|
414 |
{
|
sl@0
|
415 |
((DMediaDriverFlashWin32*)aPtr)->HandleEvent();
|
sl@0
|
416 |
}
|
sl@0
|
417 |
|
sl@0
|
418 |
void DMediaDriverFlashWin32::HandleEvent()
|
sl@0
|
419 |
{
|
sl@0
|
420 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:Event %d", iState));
|
sl@0
|
421 |
switch (iState)
|
sl@0
|
422 |
{
|
sl@0
|
423 |
case ESuspended:
|
sl@0
|
424 |
case EWriting: // write completed
|
sl@0
|
425 |
{
|
sl@0
|
426 |
#ifdef _DEBUG
|
sl@0
|
427 |
if(iCtrlIoState==ECtrlIoTimeOutPrep)
|
sl@0
|
428 |
{
|
sl@0
|
429 |
iState=EIdle;
|
sl@0
|
430 |
iCtrlIoState=EIdle;
|
sl@0
|
431 |
Complete(EReqWrite,KErrNotReady);
|
sl@0
|
432 |
}
|
sl@0
|
433 |
else
|
sl@0
|
434 |
#endif
|
sl@0
|
435 |
CompleteWrite();
|
sl@0
|
436 |
break;
|
sl@0
|
437 |
}
|
sl@0
|
438 |
case EEraseNoSuspend:
|
sl@0
|
439 |
{
|
sl@0
|
440 |
#ifdef _DEBUG
|
sl@0
|
441 |
if(iCtrlIoState==ECtrlIoTimeOutPrep)
|
sl@0
|
442 |
{
|
sl@0
|
443 |
iState=EIdle;
|
sl@0
|
444 |
iCtrlIoState=EIdle;
|
sl@0
|
445 |
Complete(EReqErase,KErrNotReady);
|
sl@0
|
446 |
}
|
sl@0
|
447 |
else
|
sl@0
|
448 |
{
|
sl@0
|
449 |
#endif
|
sl@0
|
450 |
TInt remain = iEraseCounter - NKern::TickCount();
|
sl@0
|
451 |
if (remain <= 0)
|
sl@0
|
452 |
CompleteErase();
|
sl@0
|
453 |
else
|
sl@0
|
454 |
{
|
sl@0
|
455 |
iState=EErase;
|
sl@0
|
456 |
StartTimer(remain * iTickPeriod);
|
sl@0
|
457 |
}
|
sl@0
|
458 |
#ifdef _DEBUG
|
sl@0
|
459 |
}
|
sl@0
|
460 |
#endif
|
sl@0
|
461 |
break;
|
sl@0
|
462 |
}
|
sl@0
|
463 |
case EErasePending:
|
sl@0
|
464 |
StartErase();
|
sl@0
|
465 |
break;
|
sl@0
|
466 |
case EErase: // erase completed
|
sl@0
|
467 |
CompleteErase();
|
sl@0
|
468 |
break;
|
sl@0
|
469 |
case ESuspendPending:
|
sl@0
|
470 |
if (TInt(iEraseCounter - NKern::TickCount()) <= 0)
|
sl@0
|
471 |
CompleteErase();
|
sl@0
|
472 |
else
|
sl@0
|
473 |
SuspendErase();
|
sl@0
|
474 |
break;
|
sl@0
|
475 |
case ESuspending:
|
sl@0
|
476 |
CompleteSuspend();
|
sl@0
|
477 |
break;
|
sl@0
|
478 |
default:
|
sl@0
|
479 |
__KTRACE_OPT(KPANIC,Kern::Printf("iState=%d",iState));
|
sl@0
|
480 |
FLASH_FAULT();
|
sl@0
|
481 |
}
|
sl@0
|
482 |
}
|
sl@0
|
483 |
|
sl@0
|
484 |
void DMediaDriverFlashWin32::StartErase()
|
sl@0
|
485 |
//
|
sl@0
|
486 |
// Continue an erase - iEraseCounter has the remaining time for the erase
|
sl@0
|
487 |
//
|
sl@0
|
488 |
{
|
sl@0
|
489 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:StartErase %08x",iBase+iErasePos));
|
sl@0
|
490 |
switch (iState)
|
sl@0
|
491 |
{
|
sl@0
|
492 |
case ESuspended:
|
sl@0
|
493 |
iState = EErasePending;
|
sl@0
|
494 |
StartTimer(iResumeTime);
|
sl@0
|
495 |
break;
|
sl@0
|
496 |
case EIdle: // starting to erase
|
sl@0
|
497 |
iEraseCounter = iEraseTime;
|
sl@0
|
498 |
case EErasePending:
|
sl@0
|
499 |
{
|
sl@0
|
500 |
iState = EEraseNoSuspend;
|
sl@0
|
501 |
TUint32 remain = iEraseCounter;
|
sl@0
|
502 |
iEraseCounter = NKern::TickCount() + remain/iTickPeriod;
|
sl@0
|
503 |
StartTimer(Min(remain, iSuspendHoldOffTime));
|
sl@0
|
504 |
}
|
sl@0
|
505 |
break;
|
sl@0
|
506 |
default:
|
sl@0
|
507 |
__KTRACE_OPT(KPANIC,Kern::Printf("iState=%d",iState));
|
sl@0
|
508 |
FLASH_FAULT();
|
sl@0
|
509 |
}
|
sl@0
|
510 |
}
|
sl@0
|
511 |
|
sl@0
|
512 |
void DMediaDriverFlashWin32::SuspendErase()
|
sl@0
|
513 |
{
|
sl@0
|
514 |
__ASSERT_ALWAYS(iState==EErase || iState==ESuspendPending,FLASH_FAULT());
|
sl@0
|
515 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:SuspendErase %08x",iBase+iErasePos));
|
sl@0
|
516 |
iTimer.Cancel();
|
sl@0
|
517 |
TInt remain = Max(0, TInt(iEraseCounter - NKern::TickCount()));
|
sl@0
|
518 |
iEraseCounter = remain * iTickPeriod;
|
sl@0
|
519 |
iState = ESuspending;
|
sl@0
|
520 |
StartTimer(0);
|
sl@0
|
521 |
}
|
sl@0
|
522 |
|
sl@0
|
523 |
void DMediaDriverFlashWin32::CompleteSuspend()
|
sl@0
|
524 |
{
|
sl@0
|
525 |
// erase suspend completion
|
sl@0
|
526 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:SuspendComplete"));
|
sl@0
|
527 |
|
sl@0
|
528 |
iState = ESuspended;
|
sl@0
|
529 |
// start any pending read or write requests
|
sl@0
|
530 |
StartPendingRW();
|
sl@0
|
531 |
}
|
sl@0
|
532 |
|
sl@0
|
533 |
void DMediaDriverFlashWin32::CompleteErase()
|
sl@0
|
534 |
//
|
sl@0
|
535 |
// Do the actual erase in the completion
|
sl@0
|
536 |
//
|
sl@0
|
537 |
{
|
sl@0
|
538 |
// erase completion
|
sl@0
|
539 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:EraseComplete"));
|
sl@0
|
540 |
|
sl@0
|
541 |
memset(iBase + iErasePos, 0xff, iEraseBlockSize);
|
sl@0
|
542 |
|
sl@0
|
543 |
// complete the erase request
|
sl@0
|
544 |
iState = EIdle;
|
sl@0
|
545 |
Complete(EReqErase,KErrNone);
|
sl@0
|
546 |
|
sl@0
|
547 |
// start any pending read or write requests
|
sl@0
|
548 |
StartPendingRW();
|
sl@0
|
549 |
}
|
sl@0
|
550 |
|
sl@0
|
551 |
|
sl@0
|
552 |
void DMediaDriverFlashWin32::StartPendingRW()
|
sl@0
|
553 |
{
|
sl@0
|
554 |
// start any pending read or write requests
|
sl@0
|
555 |
if (iReadReq)
|
sl@0
|
556 |
DoRead();
|
sl@0
|
557 |
if (iWriteReq)
|
sl@0
|
558 |
DoWrite();
|
sl@0
|
559 |
}
|
sl@0
|
560 |
|
sl@0
|
561 |
#ifdef _DEBUG
|
sl@0
|
562 |
// Override the base class version in order to provide access to ControlIO
|
sl@0
|
563 |
//
|
sl@0
|
564 |
TInt DMediaDriverFlashWin32::Request(TLocDrvRequest& m)
|
sl@0
|
565 |
{
|
sl@0
|
566 |
TInt r;
|
sl@0
|
567 |
TInt id=m.Id();
|
sl@0
|
568 |
__KTRACE_OPT(KLOCDRV,Kern::Printf(">DMediaDriverFlashWin32::Request %d",id));
|
sl@0
|
569 |
if (id!=DLocalDrive::EControlIO)
|
sl@0
|
570 |
{
|
sl@0
|
571 |
r=DMediaDriverFlash::Request(m);
|
sl@0
|
572 |
return r;
|
sl@0
|
573 |
}
|
sl@0
|
574 |
r=ControlIO((TInt)m.iArg[0],m.iArg[1],m.iArg[2]);
|
sl@0
|
575 |
DMediaDriver::Complete(m,r);
|
sl@0
|
576 |
return r;
|
sl@0
|
577 |
}
|
sl@0
|
578 |
|
sl@0
|
579 |
TInt DMediaDriverFlashWin32::ControlIO(TInt aCommand,TAny* /*aParam1*/,TAny* /*aParam2*/)
|
sl@0
|
580 |
{
|
sl@0
|
581 |
switch (aCommand)
|
sl@0
|
582 |
{
|
sl@0
|
583 |
case(KCtrlIoTimeout):
|
sl@0
|
584 |
{
|
sl@0
|
585 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash:DoControlIO invoked for KCtrlIoTimeout"));
|
sl@0
|
586 |
// The aim of this test is simulate a flash timeout (and so exercise the consequent
|
sl@0
|
587 |
// actions of the software that initiated the request)
|
sl@0
|
588 |
if(iCtrlIoState!=EIdle)
|
sl@0
|
589 |
{
|
sl@0
|
590 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash: ControlIO request before previous completed"));
|
sl@0
|
591 |
return KErrServerBusy;
|
sl@0
|
592 |
}
|
sl@0
|
593 |
else
|
sl@0
|
594 |
{
|
sl@0
|
595 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash: ControlIO timeout initiated"));
|
sl@0
|
596 |
iCtrlIoState=ECtrlIoTimeOutPrep;
|
sl@0
|
597 |
}
|
sl@0
|
598 |
break;
|
sl@0
|
599 |
}
|
sl@0
|
600 |
|
sl@0
|
601 |
default:
|
sl@0
|
602 |
{
|
sl@0
|
603 |
__KTRACE_OPT(KLOCDRV,Kern::Printf("Flash: ERROR - unrecognised ControlIO command %d",aCommand));
|
sl@0
|
604 |
FLASH_FAULT();
|
sl@0
|
605 |
break;
|
sl@0
|
606 |
}
|
sl@0
|
607 |
}
|
sl@0
|
608 |
return KErrNone;
|
sl@0
|
609 |
}
|
sl@0
|
610 |
|
sl@0
|
611 |
#endif
|
sl@0
|
612 |
|
sl@0
|
613 |
TInt DMediaDriverFlashWin32::Caps(TLocalDriveCapsV2& aCaps)
|
sl@0
|
614 |
// On return, aCaps data contains capability information about the
|
sl@0
|
615 |
// flash device, in the form of a class derived from TLocalDriveCapsV2.
|
sl@0
|
616 |
// The size of the derived class should not exceed KMaxLocalDriveCapsLength
|
sl@0
|
617 |
// which is defined and used in e32\drivers\locmedia\locmedia.cpp. If a
|
sl@0
|
618 |
// larger sized capabilities class is used, and this code is modified to
|
sl@0
|
619 |
// write to member data beyond KMaxLocalDriveCapsLength this will cause a
|
sl@0
|
620 |
// fault.
|
sl@0
|
621 |
{
|
sl@0
|
622 |
// Invoke the base class method then update the sizes for
|
sl@0
|
623 |
// Control Mode and Object Mode as required.
|
sl@0
|
624 |
DMediaDriverFlash::Caps(aCaps);
|
sl@0
|
625 |
#if defined (M18_EMULATION)
|
sl@0
|
626 |
TLocalDriveCapsV7* caps = &((TLocalDriveCapsV7&)(aCaps));
|
sl@0
|
627 |
caps->iControlModeSize=16;
|
sl@0
|
628 |
caps->iObjectModeSize=1024;
|
sl@0
|
629 |
__KTRACE_OPT( KLOCDRV, Kern::Printf("MLFS: ) ControlModeSize UPDATED as=0x%x", caps->iControlModeSize) );
|
sl@0
|
630 |
__KTRACE_OPT( KLOCDRV, Kern::Printf("MLFS: ) ObjectModeSize UPDATED as=0x%x", caps->iObjectModeSize) );
|
sl@0
|
631 |
#endif
|
sl@0
|
632 |
return KErrCompletion; // synchronous completion
|
sl@0
|
633 |
}
|
sl@0
|
634 |
|
sl@0
|
635 |
DMediaDriverFlash* DMediaDriverFlash::New(TInt aDevice)
|
sl@0
|
636 |
{
|
sl@0
|
637 |
return new DMediaDriverFlashWin32(aDevice);
|
sl@0
|
638 |
}
|
sl@0
|
639 |
|
sl@0
|
640 |
|
sl@0
|
641 |
|
sl@0
|
642 |
|