// Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of "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:
//
/**
@file
@internalComponent
*/
#include "hctlusboriginalevent.h"
#include "hctlusboriginal.h"
#include "hctlusboriginalutils.h"
// These files are included to get HCI specification defined constants.
#include <bluetooth/hci/hciframe.h>
#include <bluetooth/hci/event.h>
#include <bluetooth/logger.h>
#ifdef __FLOG_ACTIVE
_LIT8(KLogComponent, LOG_COMPONENT_HCTL_USB_ORIGINAL);
#endif
static const TInt KMaxEventPacketSize = 0xff + 2; // 8bit code + 8bit total "payload" field
CHCTLUsbOriginalEvent::CHCTLUsbOriginalEvent(CHCTLUsbOriginal& aHCTLUsbOriginal, RUsbInterface& aInterface)
: CActive(EPriorityStandard)
, iHCTLUsbOriginal(aHCTLUsbOriginal)
, iInterface(aInterface)
, iTransfer(KMaxEventPacketSize)
{
LOG_FUNC
CActiveScheduler::Add(this);
}
CHCTLUsbOriginalEvent::~CHCTLUsbOriginalEvent()
{
LOG_FUNC
Cancel();
iPipe.Close();
iTransfer.Close();
}
CHCTLUsbOriginalEvent* CHCTLUsbOriginalEvent::NewL(CHCTLUsbOriginal& aHCTLUsbOriginal, RUsbInterface& aInterface)
{
LOG_STATIC_FUNC
CHCTLUsbOriginalEvent* self = new(ELeave) CHCTLUsbOriginalEvent(aHCTLUsbOriginal, aInterface);
CleanupStack::PushL(self);
self->ConstructL();
CleanupStack::Pop();
return self;
}
void CHCTLUsbOriginalEvent::ConstructL()
{
LOG_FUNC
LEAVEIFERRORL(iInterface.RegisterTransferDescriptor(iTransfer));
LEAVEIFERRORL(iInterface.OpenPipeForEndpoint(iPipe, KEndpointNumber, EFalse));
}
void CHCTLUsbOriginalEvent::QueueRead()
{
LOG_FUNC
__ASSERT_DEBUG(!IsActive(), PANIC(KUsbOriginalPanic, EReadAttemptWhenReadOutstanding));
// I think the spec states that a single ACL packet is contained in a single USB
// transaction. As such we don't need to mess around working out how much to read
// we just need to issue a transfer big enough to get all the data possible.
iTransfer.SaveData(iTransfer.WritableBuffer().MaxLength());
SetActive();
iPipe.Transfer(iTransfer, iStatus);
}
void CHCTLUsbOriginalEvent::RunL()
{
LOG_FUNC
// Only process the read if it has completed successfully.
LEAVEIFERRORL(iStatus.Int());
iHCTLUsbOriginal.ProcessEvent(iTransfer.Buffer());
QueueRead();
}
void CHCTLUsbOriginalEvent::DoCancel()
{
LOG_FUNC
iPipe.CancelAllTransfers();
}
TInt CHCTLUsbOriginalEvent::RunError(TInt aError)
{
LOG_FUNC
LOG1(_L8("\taError = %d"), aError);
// The HCTL can not recover from this. Reset the controller and restart the host.
// TODO we should try to handle the case where the device is unpluged.
iHCTLUsbOriginal.MhriStartHardReset();
return KErrNone;
}
void CHCTLUsbOriginalEvent::Start()
{
LOG_FUNC
__ASSERT_DEBUG(!IsActive(), PANIC(KUsbOriginalPanic, EStartCalledWhenReadOutstanding));
QueueRead();
}