// Copyright (c) 2000-2010 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:
// e32/drivers/usbcc/chapter9.cpp
// Platform independent layer (PIL) of the USB Device controller driver:
// Processing of USB spec chapter 9 standard requests.
//
//
/**
@file chapter9.cpp
@internalTechnology
*/
#include <drivers/usbc.h>
#include "OstTraceDefinitions.h"
#ifdef OST_TRACE_COMPILER_IN_USE
#include "chapter9Traces.h"
#endif
//#define ENABLE_EXCESSIVE_DEBUG_OUTPUT
//
// The way functions are called after an request has been completed by the PSL:
//
// Ep0RequestComplete
// |
// ------------------------------------------------
// | |
// ProcessEp0ReceiveDone ProcessEp0TransmitDone
// | |
// --------------------------------------- |
// | | |
// ProcessEp0SetupReceived ProcessEp0DataReceived ProcessDataTransferDone
// | |
// --------------------- ---------------
// | | | |
// ProcessXXX ProcessDataTransferDone ProceedXXX ProcessDataTransferDone
//
// XXX = Specific_Request
//
//
// === USB Controller member function implementation - PSL API (protected) ========================
//
/** Used to synchronize the Ep0 state machine between the PSL and PIL.
Accepts a SETUP packet and returns the next Ep0 state.
@param aSetupBuf The SETUP packet just received by the PSL.
@return The next Ep0 state.
@publishedPartner @released
*/
TUsbcEp0State DUsbClientController::EnquireEp0NextState(const TUint8* aSetupBuf) const
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_ENQUIREEP0NEXTSTATE,
"DUsbClientController::EnquireEp0NextState()" );
// This function may be called by the PSL from within an ISR -- so we have
// to take care what we do here (and also in all functions that get called
// from here).
if (SWAP_BYTES_16((reinterpret_cast<const TUint16*>(aSetupBuf)[3])) == 0) // iLength
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_ENQUIREEP0NEXTSTATE_DUP1,
" --> EEp0StateStatusIn" );
return EEp0StateStatusIn; // No-data Control => Status_IN
}
else if ((aSetupBuf[0] & KUsbRequestType_DirMask) == KUsbRequestType_DirToDev)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_ENQUIREEP0NEXTSTATE_DUP2,
" --> EEp0StateDataOut" );
return EEp0StateDataOut; // Control Write => Data_OUT
}
else
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_ENQUIREEP0NEXTSTATE_DUP3,
" --> EEp0StateDataIn" );
return EEp0StateDataIn; // Control Read => Data_IN
}
}
TInt DUsbClientController::ProcessEp0ReceiveDone(TInt aCount)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0RECEIVEDONE,
"DUsbClientController::ProcessEp0ReceiveDone()" );
TInt r;
if (iEp0DataReceiving == EFalse)
{
// It's obviously a Setup packet, so...
r = ProcessEp0SetupReceived(aCount);
}
else
{
// If it isn't a Setup, it must be data...
// (This is actually not quite true, as it could also be - in theory - a new Setup packet
// when the host has abandoned, for whatever reason, the previous one which was still
// in progress. However no such case is known to have occurred with this driver, or at
// least it didn't lead to problems.
// Some UDCs have a dedicated interrupt for Setup packets, but so far this driver hasn't
// made use of such a feature (as it would require a PSL/PIL API change).)
r = ProcessEp0DataReceived(aCount);
}
return r;
}
TInt DUsbClientController::ProcessEp0TransmitDone(TInt aCount, TInt aError)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0TRANSMITDONE,
"DUsbClientController::ProcessEp0TransmitDone()" );
// In any case: there's now no longer a write pending
iEp0WritePending = EFalse;
// If it was a client who set up this transmission, we report to that client
if (iEp0ClientDataTransmitting)
{
iEp0ClientDataTransmitting = EFalse;
TUsbcRequestCallback* const p = iRequestCallbacks[KEp0_Tx];
if (p)
{
__ASSERT_DEBUG((p->iTransferDir == EControllerWrite), Kern::Fault(KUsbPILPanicCat, __LINE__));
p->iError = aError;
p->iTxBytes = aCount;
ProcessDataTransferDone(*p);
return KErrNone;
}
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0TRANSMITDONE_DUP1,
" Error: DUsbClientController::ProcessEpTransmitDone: Stalling Ep0" );
StallEndpoint(KEp0_In); // request not found
return KErrNotFound;
}
// If _we_ sent the data, we simply do nothing here...
return KErrNone;
}
TInt DUsbClientController::ProcessEp0SetupReceived(TInt aCount)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED,
"DUsbClientController::ProcessEp0SetupReceived()" );
if (aCount > iEp0MaxPacketSize)
{
// Fatal error: too much data!
aCount = iEp0MaxPacketSize;
}
// first we split the data into meaningful units:
TUsbcSetup packet;
Buffer2Setup(iEp0_RxBuf, packet);
#if defined(_DEBUG) && defined(ENABLE_EXCESSIVE_DEBUG_OUTPUT)
// let's see what we've got:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP1,
" bmRequestType = 0x%02x", packet.iRequestType );
if ((packet.iRequestType & KUsbRequestType_TypeMask) == KUsbRequestType_TypeStd)
{
switch (packet.iRequest)
{
case KUsbRequest_GetStatus:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP2,
" bRequest = 0x%02x (GET_STATUS)", KUsbRequest_GetStatus );
break;
case KUsbRequest_ClearFeature:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP3,
" bRequest = 0x%02x (CLEAR_FEATURE)", KUsbRequest_ClearFeature );
break;
case KUsbRequest_SetFeature:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP4,
" bRequest = 0x%02x (SET_FEATURE)", KUsbRequest_SetFeature );
break;
case KUsbRequest_SetAddress:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP5,
" bRequest = 0x%02x (SET_ADDRESS)", KUsbRequest_SetAddress );
break;
case KUsbRequest_GetDescriptor:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP6,
" bRequest = 0x%02x (GET_DESCRIPTOR)", KUsbRequest_GetDescriptor );
break;
case KUsbRequest_SetDescriptor:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP7,
" bRequest = 0x%02x (SET_DESCRIPTOR)", KUsbRequest_SetDescriptor );
break;
case KUsbRequest_GetConfig:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP8,
" bRequest = 0x%02x (GET_CONFIGURATION)", KUsbRequest_GetConfig );
break;
case KUsbRequest_SetConfig:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP9,
" bRequest = 0x%02x (SET_CONFIGURATION)", KUsbRequest_SetConfig );
break;
case KUsbRequest_GetInterface:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP10,
" bRequest = 0x%02x (GET_INTERFACE)", KUsbRequest_GetInterface );
break;
case KUsbRequest_SetInterface:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP11,
" bRequest = 0x%02x (SET_INTERFACE)", KUsbRequest_SetInterface );
break;
case KUsbRequest_SynchFrame:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP12,
" bRequest = 0x%02x (SYNCH_FRAME)", KUsbRequest_SynchFrame );
break;
default:
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP13,
" Error: bRequest = 0x%02x (UNKNWON STANDARD REQUEST)", packet.iRequest );
break;
}
}
else
{
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP14,
" bRequest = 0x%02x (NON-STANDARD REQUEST)", packet.iRequest );
}
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP15,
" wValue = 0x%04x", packet.iValue );
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP16,
" wIndex = 0x%04x", packet.iIndex );
OstTraceDef1( OST_TRACE_CATEGORY_DEBUG, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP17,
" wLength = 0x%04x", packet.iLength );
#endif // defined(_DEBUG) && defined(ENABLE_EXCESSIVE_DEBUG_OUTPUT)
// now the actual analysis
if ((packet.iRequestType & KUsbRequestType_TypeMask) == KUsbRequestType_TypeStd)
{
iEp0ReceivedNonStdRequest = EFalse;
switch (packet.iRequest)
{
case KUsbRequest_GetStatus:
switch (packet.iRequestType & KUsbRequestType_DestMask)
{ // Recipient
case KUsbRequestType_DestDevice:
if (ProcessGetDeviceStatus(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP18,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequestType_DestIfc:
if (ProcessGetInterfaceStatus(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP19,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequestType_DestEp:
if (ProcessGetEndpointStatus(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP20,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
default:
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP21,
" Error: GET STATUS - Other or Unknown recipient" );
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP22,
" -> DUsbClientController::ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
break;
}
break;
case KUsbRequest_ClearFeature:
case KUsbRequest_SetFeature:
switch (packet.iRequestType & KUsbRequestType_DestMask)
{ // Recipient
case KUsbRequestType_DestDevice:
if (ProcessSetClearDevFeature(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP23,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequestType_DestIfc:
if (ProcessSetClearIfcFeature(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP24,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequestType_DestEp:
if (ProcessSetClearEpFeature(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP25,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
default:
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP26,
" Error: SET/CLEAR FEATURE - Other or Unknown recipient" );
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP27,
" -> Stalling Ep0" );
StallEndpoint(KEp0_In);
break;
}
break;
case KUsbRequest_SetAddress:
if (ProcessSetAddress(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP28,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequest_GetDescriptor:
if (ProcessGetDescriptor(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP29,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequest_SetDescriptor:
if (ProcessSetDescriptor(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP30,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequest_GetConfig:
if (ProcessGetConfiguration(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP31,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequest_SetConfig:
if (ProcessSetConfiguration(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP32,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequest_GetInterface:
if (ProcessGetInterface(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP33,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequest_SetInterface:
if (ProcessSetInterface(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP34,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
case KUsbRequest_SynchFrame:
if (ProcessSynchFrame(packet) != KErrNone)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP35,
"ProcessEp0SetupReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
}
break;
default:
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP36,
" Error: Unknown/unsupported Std Setup Request" );
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP37,
" -> Stalling Ep0" );
StallEndpoint(KEp0_In);
break;
}
}
else
{
// Type mask != KUsbRequestType_TypeStd => class- or vendor-specific request
iEp0ReceivedNonStdRequest = ETrue;
const DBase* client = NULL;
switch (packet.iRequestType & KUsbRequestType_DestMask)
{ // Recipient
case KUsbRequestType_DestDevice:
client = iEp0DeviceControl;
break;
case KUsbRequestType_DestIfc:
//Add this mutex to protect the interface set data structure
if (NKern::CurrentContext() == EThread)
{
NKern::FMWait(&iMutex);
}
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateConfigured)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP38,
" Error: Invalid device state" );
}
else
{
const TUsbcInterfaceSet* const ifcset_ptr =
InterfaceNumber2InterfacePointer(packet.iIndex);
//In some rare case, ifcset_ptr is not NULL but the ifcset_ptr->iInterfaces.Count() is 0,
//so panic will happen when excute the following line. so I add the conditon
//0 != ifcset_ptr->iInterfaces.Count() here.
if (ifcset_ptr && 0 != ifcset_ptr->iInterfaces.Count())
{
if (ifcset_ptr->CurrentInterface()->iNoEp0Requests)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP39,
" Recipient says: NoEp0RequestsPlease" );
}
else
{
client = ifcset_ptr->iClientId;
}
}
else
{
OstTraceDef1(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP40,
" Error: Interface 0x%02x does not exist", packet.iIndex );
}
}
if (NKern::CurrentContext() == EThread)
{
NKern::FMSignal(&iMutex);
}
break;
case KUsbRequestType_DestEp:
//Add this mutex to protect the interface set data structure
if (NKern::CurrentContext() == EThread)
{
NKern::FMWait(&iMutex);
}
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateConfigured)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP41,
" Error: Invalid device state" );
}
else if (EndpointExists(packet.iIndex) == EFalse)
{
OstTraceDef1(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP42,
" Error: Endpoint 0x%02x does not exist", packet.iIndex );
}
else
{
const TInt idx = EpAddr2Idx(packet.iIndex);
const TUsbcInterfaceSet* const ifcset_ptr =
iRealEndpoints[idx].iLEndpoint->iInterface->iInterfaceSet;
if (ifcset_ptr->CurrentInterface()->iNoEp0Requests)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP43,
" Recipient says: NoEp0RequestsPlease" );
}
else
{
client = ifcset_ptr->iClientId;
}
}
if (NKern::CurrentContext() == EThread)
{
NKern::FMSignal(&iMutex);
}
break;
default:
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP44,
" Error: Other or Unknown recipient" );
break;
}
if (client != NULL)
{
// Try to relay packet to the appropriate recipient
TSglQueIter<TUsbcRequestCallback> iter(iEp0ReadRequestCallbacks);
TUsbcRequestCallback* p;
while ((p = iter++) != NULL)
{
if (p->Owner() == client)
{
__ASSERT_DEBUG((p->iEndpointNum == 0), Kern::Fault(KUsbPILPanicCat, __LINE__));
__ASSERT_DEBUG((p->iTransferDir == EControllerRead), Kern::Fault(KUsbPILPanicCat, __LINE__));
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP45,
" Found Ep0 read request" );
if (packet.iLength != 0)
{
if ((packet.iRequestType & KUsbRequestType_DirMask) == KUsbRequestType_DirToDev)
{
// Data transfer & direction OUT => there'll be a DATA_OUT stage
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP46,
" Next is DATA_OUT: setting up DataOutVars" );
SetEp0DataOutVars(packet, client);
}
else if ((packet.iRequestType & KUsbRequestType_DirMask) == KUsbRequestType_DirToHost)
{
// For possible later use (ZLP).
iEp0_TxNonStdCount = packet.iLength;
}
}
memcpy(p->iBufferStart, iEp0_RxBuf, aCount);
p->iError = KErrNone; // if it wasn't 'KErrNone' we wouldn't be here
*(p->iPacketSize) = aCount;
p->iRxPackets = 1;
*(p->iPacketIndex) = 0;
ProcessDataTransferDone(*p);
return KErrNone;
}
}
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP47,
" Ep0 read request not found: setting RxExtra vars (Setup)" );
iEp0_RxExtraCount = aCount;
iEp0_RxExtraData = ETrue;
return KErrNotFound;
}
else // if (client == NULL)
{
OstTraceDef0(OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0SETUPRECEIVED_DUP48,
" Ep0 request error: Stalling Ep0" );
StallEndpoint(KEp0_In);
return KErrGeneral;
}
}
return KErrNone;
}
TInt DUsbClientController::ProcessEp0DataReceived(TInt aCount)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSEP0DATARECEIVED,
"DUsbClientController::ProcessEp0DataReceived()" );
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0DATARECEIVED_DUP1,
" : %d bytes", aCount );
if (aCount > iEp0MaxPacketSize)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0DATARECEIVED_DUP2,
" Error: Too much data" );
aCount = iEp0MaxPacketSize;
}
iEp0DataReceived += aCount;
if (iEp0ClientId == NULL)
{
// it is us (not an app), who owns this transaction
switch (iSetup.iRequest)
{
#ifdef USB_SUPPORTS_SET_DESCRIPTOR_REQUEST
case KUsbRequest_SetDescriptor:
memcpy(iEp0_RxCollectionBuf + iEp0DataReceived, iEp0_RxBuf, aCount);
ProceedSetDescriptor();
break;
#endif
default:
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0DATARECEIVED_DUP3,
" Error: invalid request in iSetup" );
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSEP0DATARECEIVED_DUP4,
" -> DUsbClientController::ProcessEp0DataReceived: Stalling Ep0" );
StallEndpoint(KEp0_In);
ResetEp0DataOutVars();
break;
}
}
else
{
// pass the data on to a client
TSglQueIter<TUsbcRequestCallback> iter(iEp0ReadRequestCallbacks);
TUsbcRequestCallback* p;
while ((p = iter++) != NULL)
{
if (p->Owner() == iEp0ClientId)
{
__ASSERT_DEBUG((p->iEndpointNum == 0), Kern::Fault(KUsbPILPanicCat, __LINE__));
__ASSERT_DEBUG((p->iTransferDir == EControllerRead), Kern::Fault(KUsbPILPanicCat, __LINE__));
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0DATARECEIVED_DUP5,
" Found Ep0 read request" );
memcpy(p->iBufferStart, iEp0_RxBuf, aCount);
p->iError = KErrNone; // if it wasn't 'KErrNone' we wouldn't be here
*(p->iPacketSize) = aCount;
p->iRxPackets = 1;
*(p->iPacketIndex) = 0;
ProcessDataTransferDone(*p);
goto found;
}
}
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSEP0DATARECEIVED_DUP6,
" Ep0 read request not found: setting RxExtra vars (Data)" );
iEp0_RxExtraCount = aCount;
iEp0_RxExtraData = ETrue;
iEp0DataReceived -= aCount;
return KErrNotFound;
}
found:
if (iEp0DataReceived >= iSetup.iLength)
{
// all data seems now to be here
ResetEp0DataOutVars();
}
return KErrNone;
}
// --- The USB Spec Chapter 9 Standard Endpoint Zero Device Requests ---
TInt DUsbClientController::ProcessGetDeviceStatus(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSGETDEVICESTATUS,
"DUsbClientController::ProcessGetDeviceStatus()" );
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateAddress)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETDEVICESTATUS_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
const TUint16 status = ((DeviceSelfPowered() ? KUsbDevStat_SelfPowered : 0) |
(iRmWakeupStatus_Enabled ? KUsbDevStat_RemoteWakeup : 0));
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSGETDEVICESTATUS_DUP2,
" Reporting device status: 0x%02x", status );
*reinterpret_cast<TUint16*>(iEp0_TxBuf) = SWAP_BYTES_16(status);
if (SetupEndpointZeroWrite(iEp0_TxBuf, sizeof(status)) == KErrNone)
{
iEp0WritePending = ETrue;
}
return KErrNone;
}
TInt DUsbClientController::ProcessGetInterfaceStatus(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSGETINTERFACESTATUS,
"DUsbClientController::ProcessGetInterfaceStatus()" );
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateConfigured)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETINTERFACESTATUS_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
if (InterfaceExists(aPacket.iIndex) == EFalse)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETINTERFACESTATUS_DUP2,
" Error: Interface does not exist" );
return KErrGeneral;
}
const TUint16 status = 0x0000; // as of USB Spec 2.0
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSGETINTERFACESTATUS_DUP3,
" Reporting interface status: 0x%02x", status );
*reinterpret_cast<TUint16*>(iEp0_TxBuf) = SWAP_BYTES_16(status);
if (SetupEndpointZeroWrite(iEp0_TxBuf, sizeof(status)) == KErrNone)
{
iEp0WritePending = ETrue;
}
return KErrNone;
}
TInt DUsbClientController::ProcessGetEndpointStatus(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSGETENDPOINTSTATUS,
"DUsbClientController::ProcessGetEndpointStatus()" );
if (iTrackDeviceState &&
((iDeviceState < EUsbcDeviceStateAddress) ||
(iDeviceState == EUsbcDeviceStateAddress && (aPacket.iIndex & KUsbEpAddress_Portmask) != 0)))
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETENDPOINTSTATUS_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
if (EndpointExists(aPacket.iIndex) == EFalse)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETENDPOINTSTATUS_DUP2,
" Error: Endpoint does not exist" );
return KErrGeneral;
}
const TInt ep = EpAddr2Idx(aPacket.iIndex);
const TUint16 status = (iRealEndpoints[ep].iHalt) ? KUsbEpStat_Halt : 0;
OstTraceDefExt2( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSGETENDPOINTSTATUS_DUP3,
" Reporting endpoint status 0x%02x for real endpoint %d", status, ep );
*reinterpret_cast<TUint16*>(iEp0_TxBuf) = SWAP_BYTES_16(status);
if (SetupEndpointZeroWrite(iEp0_TxBuf, 2) == KErrNone)
{
iEp0WritePending = ETrue;
}
return KErrNone;
}
TInt DUsbClientController::ProcessSetClearDevFeature(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE,
"DUsbClientController::ProcessSetClearDevFeature()" );
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateDefault)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
TUint test_sel = 0;
if (aPacket.iRequest == KUsbRequest_SetFeature)
{
switch (aPacket.iValue)
{
case KUsbFeature_RemoteWakeup:
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateAddress)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP2,
" Error: Invalid device state" );
return KErrGeneral;
}
iRmWakeupStatus_Enabled = ETrue;
break;
case KUsbFeature_TestMode:
if (!iHighSpeed)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP3,
" Error: Request only supported in High-Speed mode" );
return KErrGeneral;
}
if (LowByte(aPacket.iIndex) != 0)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP4,
" Error: Lower byte of wIndex must be zero" );
return KErrGeneral;
}
test_sel = HighByte(aPacket.iIndex);
if ((test_sel < KUsbTestSelector_Test_J) || (test_sel > KUsbTestSelector_Test_Force_Enable))
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP5,
" Error: Invalid test selector: %d", test_sel );
return KErrGeneral;
}
break;
case KUsbFeature_B_HnpEnable:
if (!iOtgSupport)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP6,
" Error: Request only supported on a OTG device" );
return KErrGeneral;
}
if (!(iOtgFuncMap & KUsbOtgAttr_HnpSupp))
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP7,
" Error: Request only valid if OTG device supports HNP" );
return KErrGeneral;
}
iOtgFuncMap |= KUsbOtgAttr_B_HnpEnable;
OtgFeaturesNotify();
break;
case KUsbFeature_A_HnpSupport:
if (!iOtgSupport)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP8,
" Error: Request only supported on a OTG device" );
return KErrGeneral;
}
if (!(iOtgFuncMap & KUsbOtgAttr_HnpSupp))
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP9,
" Error: Request only valid if OTG device supports HNP" );
return KErrGeneral;
}
iOtgFuncMap |= KUsbOtgAttr_A_HnpSupport;
OtgFeaturesNotify();
break;
case KUsbFeature_A_AltHnpSupport:
if (!iOtgSupport)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP10,
" Error: Request only supported on a OTG device" );
return KErrGeneral;
}
if (!(iOtgFuncMap & KUsbOtgAttr_HnpSupp))
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP11,
" Error: Request only valid if OTG device supports HNP" );
return KErrGeneral;
}
iOtgFuncMap |= KUsbOtgAttr_A_AltHnpSupport;
OtgFeaturesNotify();
break;
default:
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP12,
" Error: Unknown feature requested" );
return KErrGeneral;
}
}
else // KUsbRequest_ClearFeature
{
switch (aPacket.iValue)
{
case KUsbFeature_RemoteWakeup:
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateAddress)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP13,
" Error: Invalid device state" );
return KErrGeneral;
}
iRmWakeupStatus_Enabled = EFalse;
break;
default:
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP14,
" Error: Unknown feature requested" );
return KErrGeneral;
}
}
SendEp0ZeroByteStatusPacket(); // success: zero bytes data during status stage
// 9.4.9: "The transition to test mode of an upstream facing port must not happen until
// after the status stage of the request."
if (test_sel)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARDEVFEATURE_DUP15,
" Entering HS Test Mode %d", test_sel );
EnterTestMode(test_sel);
}
return KErrNone;
}
TInt DUsbClientController::ProcessSetClearIfcFeature(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSSETCLEARIFCFEATURE,
"DUsbClientController::ProcessSetClearIfcFeature()" );
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateConfigured)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEARIFCFEATURE_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
// No interface features defined in USB spec, thus
return KErrGeneral;
}
TInt DUsbClientController::ProcessSetClearEpFeature(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSSETCLEAREPFEATURE,
"DUsbClientController::ProcessSetClearEpFeature()" );
if (iTrackDeviceState &&
((iDeviceState < EUsbcDeviceStateAddress) ||
(iDeviceState == EUsbcDeviceStateAddress && (aPacket.iIndex & KUsbEpAddress_Portmask) != 0)))
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEAREPFEATURE_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
if (aPacket.iValue != KUsbFeature_EndpointHalt)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEAREPFEATURE_DUP2,
" Error: Unknown feature requested" );
return KErrGeneral;
}
if (EndpointExists(aPacket.iIndex) == EFalse)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEAREPFEATURE_DUP3,
" Error: Endpoint does not exist" );
return KErrGeneral;
}
const TInt ep = EpAddr2Idx(aPacket.iIndex);
if (iRealEndpoints[ep].iLEndpoint->iInfo.iType == KUsbEpTypeControl ||
iRealEndpoints[ep].iLEndpoint->iInfo.iType == KUsbEpTypeIsochronous)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCLEAREPFEATURE_DUP4,
" Error: Endpoint is Control or Isochronous" );
return KErrGeneral;
}
SetClearHaltFeature(ep, aPacket.iRequest);
SendEp0ZeroByteStatusPacket(); // success: zero bytes data during status stage
return KErrNone;
}
TInt DUsbClientController::ProcessSetAddress(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSSETADDRESS,
"DUsbClientController::ProcessSetAddress()" );
if (iTrackDeviceState && iDeviceState > EUsbcDeviceStateAddress)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETADDRESS_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
const TUint16 addr = aPacket.iValue;
if (addr > 127)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETADDRESS_DUP2,
" Error: Bad address value: %d (>127)", addr );
return KErrGeneral;
}
if (addr == 0)
{
// Enter Default state (from Default or Address)
NextDeviceState(EUsbcDeviceStateDefault);
}
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSSETADDRESS_DUP3,
" USB address: %d", addr );
// The spec says, under section 9.4.6:
// "Stages after the initial Setup packet assume the same device address as the Setup packet. The USB
// device does not change its device address until after the Status stage of this request is completed
// successfully. Note that this is a difference between this request and all other requests. For all other
// requests, the operation indicated must be completed before the Status stage."
// Therefore, here we first send the status packet and only then actually execute the request.
SendEp0ZeroByteStatusPacket();
SetDeviceAddress(addr);
return KErrNone;
}
TInt DUsbClientController::ProcessGetDescriptor(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSGETDESCRIPTOR,
"DUsbClientController::ProcessGetDescriptor()" );
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateDefault)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETDESCRIPTOR_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
// Make sure we assume the correct speed
__ASSERT_DEBUG((iHighSpeed == CurrentlyUsingHighSpeed()), Kern::Fault(KUsbPILPanicCat, __LINE__));
TInt size = 0;
const TInt result = iDescriptors.FindDescriptor(HighByte(aPacket.iValue), // Type
LowByte(aPacket.iValue), // Index
aPacket.iIndex, // Language ID
size);
if ((result != KErrNone) || (size == 0))
{
// This doesn't have to be an error - protocol-wise it's OK.
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSGETDESCRIPTOR_DUP2,
" Couldn't retrieve descriptor" );
return KErrGeneral;
}
OstTraceDefExt2( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSGETDESCRIPTOR_DUP3,
" Descriptor found, size: %d (requested: %d)", size, aPacket.iLength );
if (size > KUsbcBufSz_Ep0Tx)
{
// This should actually not be possible (i.e. we should never get here).
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETDESCRIPTOR_DUP4,
" Error: Ep0_Tx buffer too small" );
}
if (size > aPacket.iLength)
{
// Send only as much data as requested by the host
size = aPacket.iLength;
}
#ifdef ENABLE_EXCESSIVE_DEBUG_OUTPUT
OstTraceDefExt1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSGETDESCRIPTOR_DUP5,
" Data: %{uint8[]}", TOstArray<TUint8>(iEp0_TxBuf, 8) );
#endif
// If we're about to send less bytes than expected by the host AND our number is a
// multiple of the packet size, in order to indicate the end of the control transfer,
// we must finally send a zero length data packet (ZLP):
const TBool zlp = ((size < aPacket.iLength) && (size % iEp0MaxPacketSize == 0));
if (SetupEndpointZeroWrite(iEp0_TxBuf, size, zlp) == KErrNone)
{
iEp0WritePending = ETrue;
}
return KErrNone;
}
TInt DUsbClientController::ProcessSetDescriptor(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSSETDESCRIPTOR,
"DUsbClientController::ProcessSetDescriptor()" );
#ifndef USB_SUPPORTS_SET_DESCRIPTOR_REQUEST
return KErrGeneral;
#else
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateAddress)
{
// Error: Invalid device state!
return KErrGeneral;
}
if (aPacket.iLength > KUsbcBufSz_Ep0Rx)
{
// Error: Our Rx buffer is too small! (Raise a defect to make it larger)
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETDESCRIPTOR_DUP1,
" Error: Ep0_Rx buffer too small" );
return KErrGeneral;
}
SetEp0DataOutVars(aPacket);
SetupEndpointZeroRead();
return KErrNone;
#endif
}
TInt DUsbClientController::ProcessGetConfiguration(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSGETCONFIGURATION,
"DUsbClientController::ProcessGetConfiguration()" );
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateAddress)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETCONFIGURATION_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
if (iTrackDeviceState && iDeviceState == EUsbcDeviceStateAddress && iCurrentConfig != 0)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETCONFIGURATION_DUP2,
" Error: DeviceState Address && Config != 0" );
return KErrGeneral;
}
if (iTrackDeviceState && iDeviceState == EUsbcDeviceStateConfigured && iCurrentConfig == 0)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETCONFIGURATION_DUP3,
" Error: DeviceState Configured && Config == 0" );
return KErrGeneral;
}
if (aPacket.iLength != 1) // "unspecified behavior"
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSGETCONFIGURATION_DUP4,
" Warning: wLength != 1 (= %d)", aPacket.iLength );
}
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSGETCONFIGURATION_DUP5,
" Reporting configuration value %d", iCurrentConfig );
if (SetupEndpointZeroWrite(&iCurrentConfig, sizeof(iCurrentConfig)) == KErrNone)
{
iEp0WritePending = ETrue;
}
return KErrNone;
}
/** Changes the device's configuration value, including interface setup and/or
teardown and state change notification of higher-layer clients.
May also be called by the PSL in special cases - therefore publishedPartner.
@param aPacket The received Ep0 SET_CONFIGURATION setup request packet.
@return KErrGeneral in case of a protocol error, KErrNone otherwise.
@publishedPartner @released
*/
TInt DUsbClientController::ProcessSetConfiguration(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSSETCONFIGURATION,
"DUsbClientController::ProcessSetConfiguration()" );
// This function may be called by the PSL from within an ISR -- so we have
// to take care what we do here (and also in all functions that get called
// from here).
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateAddress)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCONFIGURATION_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
const TUint16 value = aPacket.iValue;
if (value > 1) // we support only one configuration
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETCONFIGURATION_DUP2,
" Error: Configuration value too large: %d", value );
return KErrGeneral;
}
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSSETCONFIGURATION_DUP3,
" Configuration value: %d", value );
ChangeConfiguration(value);
// In 9.4.5 under GET_STATUS we read, that after SET_CONFIGURATION the HALT feature
// for all endpoints is reset to zero.
TInt num = 0;
(TAny) DoForEveryEndpointInUse(&DUsbClientController::ClearHaltFeature, num);
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSSETCONFIGURATION_DUP4,
" Called ClearHaltFeature() for %d endpoints", num );
SendEp0ZeroByteStatusPacket(); // success: zero bytes data during status stage
return KErrNone;
}
TInt DUsbClientController::ProcessGetInterface(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSGETINTERFACE,
"DUsbClientController::ProcessGetInterface()" );
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateConfigured)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETINTERFACE_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
if (iCurrentConfig == 0)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETINTERFACE_DUP2,
" Error: Device not configured" );
return KErrGeneral;
}
const TInt number = aPacket.iIndex;
if (!InterfaceExists(number))
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSGETINTERFACE_DUP3,
" Error: Bad interface index: %d", number );
return KErrGeneral;
}
// Send alternate setting code of iCurrentInterface of Interface(set) <number> of the current
// config (iCurrentConfig).
const TUint8 setting = InterfaceNumber2InterfacePointer(number)->iCurrentInterface;
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSGETINTERFACE_DUP4,
" Reporting interface setting %d", setting );
if (SetupEndpointZeroWrite(&setting, 1) == KErrNone)
{
iEp0WritePending = ETrue;
}
return KErrNone;
}
TInt DUsbClientController::ProcessSetInterface(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSSETINTERFACE,
"DUsbClientController::ProcessSetInterface()" );
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateConfigured)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETINTERFACE_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
if (iCurrentConfig == 0)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETINTERFACE_DUP2,
" Error: Device not configured" );
return KErrGeneral;
}
const TInt number = aPacket.iIndex;
if (!InterfaceExists(number))
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETINTERFACE_DUP3,
" Error: Bad interface index: %d", number );
return KErrGeneral;
}
const TInt setting = aPacket.iValue;
TUsbcInterfaceSet* const ifcset_ptr = InterfaceNumber2InterfacePointer(number);
RPointerArray<TUsbcInterface>& ifcs = ifcset_ptr->iInterfaces;
if (setting >= ifcs.Count())
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSETINTERFACE_DUP4,
" Error: Alt Setting >= bNumAltSettings: %d", setting );
return KErrGeneral;
}
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_PROCESSSETINTERFACE_DUP5,
" Interface setting:: %d", setting );
// Set iCurrentInterface of Interface(set) <number> of the current config
// (iCurrentConfig) to alternate setting <setting>.
ChangeInterface(ifcs[setting]);
// In 9.4.5 under GET_STATUS we read, that after SET_INTERFACE the HALT feature
// for all endpoints (of the now current interface setting) is reset to zero.
RPointerArray<TUsbcLogicalEndpoint>& eps = ifcset_ptr->CurrentInterface()->iEndpoints;
const TInt num_eps = eps.Count();
for (TInt i = 0; i < num_eps; i++)
{
const TInt ep_num = EpAddr2Idx(eps[i]->iPEndpoint->iEndpointAddr);
(TAny) ClearHaltFeature(ep_num);
}
SendEp0ZeroByteStatusPacket(); // success: zero bytes data during status stage
return KErrNone;
}
TInt DUsbClientController::ProcessSynchFrame(const TUsbcSetup& aPacket)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCESSSYNCHFRAME,
"DUsbClientController::ProcessSynchFrame()" );
if (iTrackDeviceState && iDeviceState < EUsbcDeviceStateConfigured)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSYNCHFRAME_DUP1,
" Error: Invalid device state" );
return KErrGeneral;
}
const TInt ep = aPacket.iIndex;
if (EndpointExists(ep) == EFalse)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSYNCHFRAME_DUP2,
" Error: Endpoint does not exist" );
return KErrGeneral;
}
if (iRealEndpoints[EpAddr2Idx(ep)].iLEndpoint->iInfo.iType != KUsbEpTypeIsochronous)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_PROCESSSYNCHFRAME_DUP3,
" Error: Endpoint is not isochronous" );
return KErrGeneral;
}
// We always send 0:
*reinterpret_cast<TUint16*>(iEp0_TxBuf) = 0x00;
if (SetupEndpointZeroWrite(iEp0_TxBuf, 2) == KErrNone)
{
iEp0WritePending = ETrue;
}
return KErrNone;
}
#ifdef USB_SUPPORTS_SET_DESCRIPTOR_REQUEST
void DUsbClientController::ProceedSetDescriptor()
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_PROCEEDSETDESCRIPTOR,
"DUsbClientController::ProceedSetDescriptor()" );
// iEp0DataReceived already reflects the current buffer state
if (iEp0DataReceived < iSetup.iLength)
{
// Not yet all data received => proceed
return;
}
if (iEp0DataReceived > iSetup.iLength)
{
// Error: more data received than expected
// but we don't care...
}
// at this point: iEp0DataReceived == iSetup.iLength
const TUint8 type = HighByte(iSetup.iValue);
if (type == KUsbDescType_String)
{
// set/add new string descriptor
}
else
{
// set/add new ordinary descriptor
}
TUint8 index = LowByte(iSetup.iValue);
TUint16 langid = iSetup.iIndex;
TUint16 length_total = iSetup.iLength;
}
#endif
// --- Secondary (Helper) Functions
void DUsbClientController::SetClearHaltFeature(TInt aRealEndpoint, TUint8 aRequest)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_SETCLEARHALTFEATURE,
"DUsbClientController::SetClearHaltFeature()" );
if (aRequest == KUsbRequest_SetFeature)
{
if (iRealEndpoints[aRealEndpoint].iHalt)
{
// (This condition is not really an error)
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_SETCLEARHALTFEATURE_DUP1,
" Warning: HALT feature already set" );
return;
}
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_SETCLEARHALTFEATURE_DUP2,
" setting HALT feature for real endpoint %d", aRealEndpoint );
StallEndpoint(aRealEndpoint);
iRealEndpoints[aRealEndpoint].iHalt = ETrue;
}
else // KUsbRequest_ClearFeature
{
if (iRealEndpoints[aRealEndpoint].iHalt == EFalse)
{
// In this case, before we return, the data toggles are reset to DATA0.
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_SETCLEARHALTFEATURE_DUP3,
" Warning: HALT feature already cleared" );
ResetDataToggle(aRealEndpoint);
return;
}
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_SETCLEARHALTFEATURE_DUP4,
" clearing HALT feature for real endpoint %d", aRealEndpoint );
ResetDataToggle(aRealEndpoint);
ClearStallEndpoint(aRealEndpoint);
iRealEndpoints[aRealEndpoint].iHalt = EFalse;
}
EpStatusNotify(aRealEndpoint); // only called if actually something changed
}
TInt DUsbClientController::ClearHaltFeature(TInt aRealEndpoint)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_CLEARHALTFEATURE,
"DUsbClientController::ClearHaltFeature()" );
if (iRealEndpoints[aRealEndpoint].iHalt != EFalse)
{
ClearStallEndpoint(aRealEndpoint);
iRealEndpoints[aRealEndpoint].iHalt = EFalse;
}
return KErrNone;
}
void DUsbClientController::ChangeConfiguration(TUint16 aValue)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION,
"DUsbClientController::ChangeConfiguration()" );
// New configuration is the same as the old one: 0
if (iCurrentConfig == 0 && aValue == 0)
{
// no-op
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION_DUP1,
" Configuration: New == Old == 0 --> exiting" );
return;
}
// New configuration is the same as the old one (but not 0)
if (iCurrentConfig == aValue)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION_DUP2,
" Configuration: New == Old == %d --> exiting", aValue );
// From the spec 9.1.1.5, Data toggle is reset to zero here when
// setconfiguration(x->x)(x!=0) received, although we only support
// single configuration currently.
TInt num = 0;
TInt ret = DoForEveryEndpointInUse(&DUsbClientController::ResetDataToggle, num);
if(ret != KErrNone)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION_DUP3,
" Error: Endpoint data toggle reset failed" );
}
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION_DUP4,
" Called ResetDataToggle()for %d endpoints", num );
return;
}
// Device is already configured
if (iCurrentConfig != 0)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION_DUP5,
" Device was configured: %d", iCurrentConfig );
// Tear down all interface(set)s of the old configuration
RPointerArray<TUsbcInterfaceSet>& ifcsets = CurrentConfig()->iInterfaceSets;
for (TInt i = 0; i < ifcsets.Count(); ++i)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION_DUP6,
" Tearing down InterfaceSet %d", i );
InterfaceSetTeardown(ifcsets[i]);
}
iCurrentConfig = 0;
// Enter Address state (from Configured)
if (iDeviceState == EUsbcDeviceStateConfigured)
NextDeviceState(EUsbcDeviceStateAddress);
}
// Device gets a new configuration
if (aValue != 0)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION_DUP7,
" Device gets new configuration..." );
// Setup all alternate settings 0 of all interfaces
// (Don't separate the next two lines of code.)
iCurrentConfig = aValue;
RPointerArray<TUsbcInterfaceSet>& ifcsets = CurrentConfig()->iInterfaceSets;
const TInt n = ifcsets.Count();
for (TInt i = 0; i < n; ++i)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION_DUP8,
" Setting up InterfaceSet %d", i );
InterfaceSetup(ifcsets[i]->iInterfaces[0]);
}
// Enter Configured state (from Address or Configured)
NextDeviceState(EUsbcDeviceStateConfigured);
}
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGECONFIGURATION_DUP9,
" New configuration: %d", iCurrentConfig );
return;
}
void DUsbClientController::InterfaceSetup(TUsbcInterface* aIfc)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_INTERFACESETUP,
"DUsbClientController::InterfaceSetup()" );
const TInt num_eps = aIfc->iEndpoints.Count();
for (TInt i = 0; i < num_eps; i++)
{
// Prepare this endpoint for I/O
TUsbcLogicalEndpoint* const ep = aIfc->iEndpoints[i];
// (TUsbcLogicalEndpoint's FS/HS endpoint sizes and interval values got
// adjusted in its constructor.)
if (iHighSpeed)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_INTERFACESETUP_DUP1,
" Setting Ep info size to %d (HS)", ep->iEpSize_Hs );
ep->iInfo.iSize = ep->iEpSize_Hs;
}
else
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_INTERFACESETUP_DUP2,
" Setting Ep info size to %d (FS)", ep->iEpSize_Fs );
ep->iInfo.iSize = ep->iEpSize_Fs;
}
const TInt idx = EpAddr2Idx(ep->iPEndpoint->iEndpointAddr);
if (ConfigureEndpoint(idx, ep->iInfo) != KErrNone)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_INTERFACESETUP_DUP3,
" Error: Endpoint %d configuration failed", idx );
continue;
}
// Should there be a problem with it then we could try resetting the ep
// data toggle at this point (or before the Configure) as well.
OstTraceDefExt2( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_INTERFACESETUP_DUP4,
" Connecting real ep addr 0x%02x & logical ep #%d", ep->iPEndpoint->iEndpointAddr, ep->iLEndpointNum );
ep->iPEndpoint->iLEndpoint = ep;
}
aIfc->iInterfaceSet->iCurrentInterface = aIfc->iSettingCode;
return;
}
void DUsbClientController::InterfaceSetTeardown(TUsbcInterfaceSet* aIfcSet)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_INTERFACESETTEARDOWN,
"DUsbClientController::InterfaceSetTeardown()" );
if (aIfcSet->iInterfaces.Count() == 0)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_INTERFACESETTEARDOWN_DUP1,
" No interfaces exist - returning" );
return;
}
RPointerArray<TUsbcLogicalEndpoint>& eps = aIfcSet->CurrentInterface()->iEndpoints;
const TInt num_eps = eps.Count();
for (TInt i = 0; i < num_eps; i++)
{
TUsbcLogicalEndpoint* const ep = eps[i];
const TInt idx = EpAddr2Idx(ep->iPEndpoint->iEndpointAddr);
CancelTransferRequests(idx);
if (!ep->iPEndpoint->iLEndpoint)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_INTERFACESETTEARDOWN_DUP2,
" real ep %d not configured: skipping", idx );
continue;
}
if (ResetDataToggle(idx) != KErrNone)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_INTERFACESETTEARDOWN_DUP3,
" Error: Endpoint %d data toggle reset failed", idx );
}
if (DeConfigureEndpoint(idx) != KErrNone)
{
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_FATAL, DUSBCLIENTCONTROLLER_INTERFACESETTEARDOWN_DUP4,
" Error: Endpoint %d de-configuration failed", idx );
}
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_INTERFACESETTEARDOWN_DUP5,
" disconnecting real ep & logical ep" );
ep->iPEndpoint->iLEndpoint = NULL;
}
if (aIfcSet->CurrentInterface() != 0)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_INTERFACESETTEARDOWN_DUP6,
" Resetting alternate interface setting to 0" );
//Add this mutex to protect the interface set data structure
if (NKern::CurrentContext() == EThread)
{
NKern::FMWait(&iMutex);
}
aIfcSet->iCurrentInterface = 0;
if (NKern::CurrentContext() == EThread)
{
NKern::FMSignal(&iMutex);
}
}
return;
}
void DUsbClientController::ChangeInterface(TUsbcInterface* aIfc)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_CHANGEINTERFACE,
"DUsbClientController::ChangeInterface()" );
TUsbcInterfaceSet* ifcset = aIfc->iInterfaceSet;
const TUint8 setting = aIfc->iSettingCode;
if (ifcset->iCurrentInterface == setting)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGEINTERFACE_DUP1,
" New Ifc == old Ifc: nothing to do" );
return;
}
OstTraceDef1( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_CHANGEINTERFACE_DUP2,
" Setting new interface setting #%d", setting );
InterfaceSetTeardown(ifcset);
InterfaceSetup(aIfc);
StatusNotify(static_cast<TUsbcDeviceState>(KUsbAlternateSetting | setting), ifcset->iClientId);
}
// aFunction gets called, successively, with the endpoint index of every ep in-use as its argument.
// (BTW: The declaration "type (class::*name)(params)" makes <name> a "pointer to element function".)
//
TInt DUsbClientController::DoForEveryEndpointInUse(TInt (DUsbClientController::*aFunction)(TInt), TInt& aCount)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_FLOW, DUSBCLIENTCONTROLLER_DOFOREVERYENDPOINTINUSE,
"DUsbClientController::DoForEveryEndpointInUse()" );
aCount = 0;
TUsbcConfiguration* const config = CurrentConfig();
if (!config)
{
OstTraceDef0( OST_TRACE_CATEGORY_RND, TRACE_NORMAL, DUSBCLIENTCONTROLLER_DOFOREVERYENDPOINTINUSE_DUP1,
" Device is not configured - returning" );
return KErrNone;
}
RPointerArray<TUsbcInterfaceSet>& ifcsets = config->iInterfaceSets;
const TInt num_ifcsets = ifcsets.Count();
for (TInt i = 0; i < num_ifcsets; i++)
{
RPointerArray<TUsbcLogicalEndpoint>& eps = ifcsets[i]->CurrentInterface()->iEndpoints;
const TInt num_eps = eps.Count();
for (TInt j = 0; j < num_eps; j++)
{
const TInt ep_num = EpAddr2Idx(eps[j]->iPEndpoint->iEndpointAddr);
const TInt result = (this->*aFunction)(ep_num);
++aCount;
if (result != KErrNone)
{
return result;
}
}
}
return KErrNone;
}
// -eof-