// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#include <d32usbdi_hubdriver.h>

#include <d32usbdi.h>

#include <d32otgdi.h>

#include <d32usbdescriptors.h>

#include <d32usbtransfers.h>

#include <e32property.h>

#include <f32file.h>

#include "usbtypes.h"

#include "rusbhostmsdevice.h"

#include "rusbhostmslogicalunit.h"

#include "rextfilesystem.h"

#include "cusbmsmountmanager.h"

#include "mdrivedisplay.h"

#include "cusbhostao.h"

#include "cusbhost.h"

#include "tmslog.h"

#include "debug.h"

_LIT(KHubDriverLddFileName, "usbhubdriver");

_LIT(KUsbdiLddFileName, "usbdi");

CUsbHost* CUsbHost::NewL()

    {

    __MSFNSLOG

	CUsbHost* r = new (ELeave) CUsbHost();

	CleanupStack::PushL(r);

	r->ConstructL();

	CleanupStack::Pop();

	return r;

    }

void CUsbHost::ConstructL()

    {

    __MSFNLOG

    OpenHubL();

	LoadFileSystemL();

    iUsbHostAo = CUsbHostAo::NewL(iHubDriver, iEvent, *this);

    iMountManager = CUsbMsMountManager::NewL();

    }

CUsbHost::CUsbHost()

    {

    __MSFNLOG

    }

CUsbHost::~CUsbHost()

    {

    __MSFNLOG

    delete iUsbHostAo;

    DismountAllFileSystemsL();

    CloseAllDevicesL();

    CloseHubL();

    delete iMountManager;

    }

void CUsbHost::LoadFileSystemL()

    {

    __MSFNLOG

    RFs fs;

    User::LeaveIfError(fs.Connect());

    CleanupClosePushL(fs);

	_LIT(KFsNm, "elocal");

    TInt err;

    err = fs.AddFileSystem(KFsNm);

    if (err != KErrAlreadyExists)

        User::LeaveIfError(err);

    err = fs.AddFileSystem(_L("ELOCAL"));

    if (!(KErrAlreadyExists == err || KErrCorrupt == err))

        User::LeaveIfError(err);

    err = fs.AddProxyDrive(_L("usbhostms.pxy"));

    if (!(KErrAlreadyExists == err || KErrCorrupt == err))

        User::LeaveIfError(err);

    CleanupStack::PopAndDestroy(&fs);

    }

void CUsbHost::OpenHubL()

    {

    __MSFNLOG

    TInt err;

    err = User::LoadLogicalDevice(KHubDriverLddFileName);

    if (err != KErrAlreadyExists)

        User::LeaveIfError(err);

    err = User::LoadLogicalDevice(KUsbdiLddFileName);

    if (err != KErrAlreadyExists)

        User::LeaveIfError(err);

    err = iHubDriver.Open();

    User::LeaveIfError(err);

    }

void CUsbHost::CloseHubL()

    {

    __MSFNLOG

	iHubDriver.StopHost();

	iHubDriver.Close();

	TInt err1 = User::FreeLogicalDevice(KUsbdiLddFileName);

	__ASSERT_DEBUG(err1==KErrNone, User::Panic(KUsbdiLddFileName, err1));

	TInt err2 = User::FreeLogicalDevice(KHubDriverLddFileName);

	__ASSERT_DEBUG(err2==KErrNone, User::Panic(KHubDriverLddFileName, err2));

	User::LeaveIfError(err1);

	User::LeaveIfError(err2);

    }

TToken CUsbHost::OpenDeviceL()

    {

    __MSFNLOG

    CDevice* device = CDevice::NewL();

    TToken token = 0;

    TRAPD(err, token = device->OpenDeviceL(iDeviceHandle, iHubDriver));

    if (err)

        {

        User::Leave(err);

        }

    iMountManager->AddDeviceL(device);

    return token;

    }

void CUsbHost::CloseDeviceL()

    {

    __MSFNLOG

    CDevice* device = iMountManager->RemoveDeviceL(iDeviceHandle);

    device->CloseDeviceL();

    delete device;

    }

void CUsbHost::CloseAllDevicesL()

    {

    __MSFNLOG

    iMountManager->CloseAllDevicesL();

    }

void CUsbHost::MountDeviceL()

    {

    __MSFNLOG

    iMountManager->MountDeviceL(iDeviceHandle);

    }

void CUsbHost::DismountDeviceL()

    {

    __MSFNLOG

    iMountManager->DismountDeviceL(iDeviceHandle);

    }

void CUsbHost::DismountAllFileSystemsL()

    {

    __MSFNLOG

    iMountManager->DismountL();

    }

void CUsbHost::Start()

    {

    __MSFNLOG

    iUsbHostAo->Wait();

    }

void CUsbHost::ProcessBusEventL()

    {

    __MSFNLOG

    __USBHOSTPRINT2(_L(">> CUsbHost RUsbHubDriver Event[%d] Device Handle = %d"),

                    iEvent.iEventType, iEvent.iDeviceHandle);

    __USBHOSTPRINT2(_L("Error = %d reason = %x"),

                    iEvent.iError, iEvent.iReason);

    iDeviceHandle = iEvent.iDeviceHandle;

    RUsbHubDriver::TBusEvent::TEvent event = iEvent.iEventType;

    if (event == RUsbHubDriver::TBusEvent::EDeviceAttached)

        {

        /* Jungo stack has attached the device */

        TUint32 token = OpenDeviceL();

        MountDeviceL();

	    __USBHOSTPRINT(_L("CUsbHost: device attached"));

        }

    else if (event == RUsbHubDriver::TBusEvent::EDeviceRemoved)

        {

		TRAPD(err, DismountDeviceL());

	    CloseDeviceL();

        User::LeaveIfError(err);

        __USBHOSTPRINT(_L("CUsbHost: device removed"));

        }

    else

        {

        // nothing to do

        }

    }

RUsbHubDriver::TBusEvent::TEvent CUsbHost::WaitForBusEvent()

    {

    __MSFNLOG

    TRequestStatus status;

    RUsbHubDriver::TBusEvent event;

    TBool eventReceived = EFalse;

    do

        {

        iHubDriver.WaitForBusEvent(event, status);

        __USBHOSTPRINT(_L("Waiting..."));

        User::WaitForRequest(status);

        __USBHOSTPRINT2(_L(">> CUsbHost RUsbHubDriver Event[%d] Device Handle = %d)"),

                        iEvent.iEventType, iEvent.iDeviceHandle);

        __USBHOSTPRINT2(_L("Error = %d reason = %x"),

                        iEvent.iError, iEvent.iReason);

        if (status != KErrNone)

            {

            __USBHOSTPRINT1(_L("Status error = %d"), status.Int());

            }

        iDeviceHandle = event.iDeviceHandle;

        switch (event.iEventType)

            {

            case RUsbHubDriver::TBusEvent::EDeviceAttached:

            case RUsbHubDriver::TBusEvent::EDeviceRemoved:

                eventReceived = ETrue;

                break;

            default:

                break;

            }

        } while (!eventReceived);

    return event.iEventType;

    }

void CUsbHost::Cancel()

    {

    iHubDriver.CancelWaitForBusEvent();

    }

void CUsbHost::DriveMap(TDriveMap& aDriveMap) const

    {

    __MSFNSLOG

    iMountManager->DriveMap(aDriveMap);

    }

void CUsbHost::DeviceMap(TInt aDeviceIndex, TDeviceMap& aDeviceMap) const

    {

    __MSFNSLOG

    iMountManager->DeviceMap(aDeviceIndex, aDeviceMap);

    }

TInt CUsbHost::DevicesNumber() const

    {

    return iMountManager->DevicesNumber();

    }

CUsbHostDisp* CUsbHostDisp::NewL(MDriveDisplay& aDriveDisplay)

    {

    __MSFNSLOG

	CUsbHostDisp* r = new (ELeave) CUsbHostDisp(aDriveDisplay);

	CleanupStack::PushL(r);

	r->ConstructL();

	CleanupStack::Pop();

	return r;

    }

void CUsbHostDisp::ConstructL()

    {

    __MSFNLOG

    CUsbHost::ConstructL();

    }

CUsbHostDisp::CUsbHostDisp(MDriveDisplay& aDriveDisplay)

:   CUsbHost(),

    iDriveDisplay(aDriveDisplay)

    {

    __MSFNLOG

    }

CUsbHostDisp::~CUsbHostDisp()

    {

    __MSFNLOG

    }

void CUsbHostDisp::ProcessBusEventL()

    {

    CUsbHost::ProcessBusEventL();

    // update display

    iDriveDisplay.DriveListL();

    // Devices attached

    TInt devicesNumber = DevicesNumber();

    iDriveDisplay.DevicesNumber(devicesNumber);

    // LUNs for each device

    TDeviceMap deviceMap;

    TInt deviceIndex;

    TInt row;

    for (row = 0, deviceIndex = (devicesNumber - 1); deviceIndex >= 0 ; row++, deviceIndex--)

        {

        deviceMap.Reset();

        // get map

        DeviceMap(deviceIndex, deviceMap);

        // display

        iDriveDisplay.DeviceMapL(row, deviceIndex, deviceMap);

        }

    iDriveDisplay.DeviceMapClear(row);

    // Display all Drives

    TDriveMap driveMap;

    driveMap.Reset();

    DriveMap(driveMap);

    iDriveDisplay.DriveMapL(driveMap);

    }