--- a/usbdrv/peripheral/pdd/pil/src/chapter9.cpp Tue Aug 31 17:01:47 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1599 +0,0 @@
-// Copyright (c) 2000-2009 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:
-// 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 <usb/usbc.h>
-
-#include "controltransfersm.h"
-
-//#define ENABLE_EXCESSIVE_DEBUG_OUTPUT
-//
-// === 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
-*/
-UsbShai::TControlStage DUsbClientController::EnquireEp0NextStage(const TUint8* aSetupBuf) const
- {
- __KTRACE_OPT(KUSB, Kern::Printf("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
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" --> EControlTransferStageStatusIn"));
- return UsbShai::EControlTransferStageStatusIn; // No-data Control => Status_IN
- }
- else if ((aSetupBuf[0] & KUsbRequestType_DirMask) == KUsbRequestType_DirToDev)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" --> EControlTransferStageDataOut"));
- return UsbShai::EControlTransferStageDataOut; // Control Write => Data_OUT
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" --> EControlTransferStageDataIn"));
- return UsbShai::EControlTransferStageDataIn; // Control Read => Data_IN
- }
- }
-
-//
-// About iLastError.
-// This member is used to remember the last error happend during a
-// processXXX likewise function.
-//
-// Before entry of each ProcessXXX, iLastError will be cleared to KErrNone.
-//
-
-// --- The USB Spec Chapter 9 Standard Endpoint Zero Device Requests ---
-// Record error happend with iLastError, the value already been set to zero
-// before entering ProcessSetupPacket call.
-void DUsbClientController::ProcessGetDeviceStatus(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessGetDeviceStatus()"));
- if ( iDeviceState < UsbShai::EUsbPeripheralStateAddress)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else
- {
- // We always assume Device is bus-powered, even though mobile phone almost always
- // has a battry there, because self-powered device can not required more then 100ma current
- // which is not acceptable for Usb charging.
- TBool selfPowered = EFalse;
-
- /* FIXME: modify selfPowered to make it compilance with following rule.
-
- 1. If current draw exceeds 100mA, the device must report itself
- as bus-powered during enumeration.
-
- 2. In all cases, the GetStatus(DEVICE) call must accurately report
- whether the device is currently operating on self- or bus-power.
-
- 3. A device that is actively drawing more than 100mA from USB must
- report itself as bus-powered in the GetStatus(DEVICE) call.
-
- 4. Peripherals that return "Self-powered" in the GetStatus(DEVICE)
- call are prohibited from drawing more than 100mA at any time.
- */
- /*
- TBuf8<KUsbDescSize_Config> config;
-
- if(iDescriptors.GetConfigurationDescriptorTC(&Kern::CurrentThread(),config) == KErrNone)
- {
- TUint8 maxPower = config[8];
- if(maxPower <= 50)
- {
- selfPowered = EFalse;
- }
- }
- */
-
- const TUint16 status = ((selfPowered ? KUsbDevStat_SelfPowered : 0) |
- (iRmWakeupStatus_Enabled ? KUsbDevStat_RemoteWakeup : 0));
- __KTRACE_OPT(KUSB, Kern::Printf(" Reporting device status: 0x%02x", status));
- *reinterpret_cast<TUint16*>(iEp0_TxBuf) = SWAP_BYTES_16(status);
- if (iConTransferMgr->SetupEndpointZeroWrite(iEp0_TxBuf, sizeof(status)) == KErrNone)
- {
- iEp0WritePending = ETrue;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Wrong: Write to Ep0 Failed"));
- }
- }
- }
-
-void DUsbClientController::ProcessGetInterfaceStatus(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessGetInterfaceStatus()"));
- if ( iDeviceState < UsbShai::EUsbPeripheralStateConfigured)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else
- {
- if (InterfaceExists(aPacket.iIndex) == EFalse)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Interface does not exist"));
- iLastError = KErrGeneral;
- }
- else
- {
- const TUint16 status = 0x0000; // as of USB Spec 2.0
- __KTRACE_OPT(KUSB, Kern::Printf(" Reporting interface status: 0x%02x", status));
- *reinterpret_cast<TUint16*>(iEp0_TxBuf) = SWAP_BYTES_16(status);
- if (iConTransferMgr->SetupEndpointZeroWrite(iEp0_TxBuf, sizeof(status)) == KErrNone)
- {
- iEp0WritePending = ETrue;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Wrong: Write to Ep0 Failed"));
- }
- }
- }
- }
-
-
-void DUsbClientController::ProcessGetEndpointStatus(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessGetEndpointStatus()"));
- if (
- ((iDeviceState < UsbShai::EUsbPeripheralStateAddress) ||
- (iDeviceState == UsbShai::EUsbPeripheralStateAddress && (aPacket.iIndex & KUsbEpAddress_Portmask) != 0)))
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else
- {
- if (EndpointExists(aPacket.iIndex) == EFalse)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Endpoint does not exist"));
- iLastError = KErrGeneral;
- }
- else
- {
- const TInt ep = EpAddr2Idx(aPacket.iIndex);
- const TUint16 status = (iRealEndpoints[ep].iHalt) ? KUsbEpStat_Halt : 0;
- __KTRACE_OPT(KUSB, Kern::Printf(" Reporting endpoint status 0x%02x for real endpoint %d",
- status, ep));
- *reinterpret_cast<TUint16*>(iEp0_TxBuf) = SWAP_BYTES_16(status);
- if (iConTransferMgr->SetupEndpointZeroWrite(iEp0_TxBuf, 2) == KErrNone)
- {
- iEp0WritePending = ETrue;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Wrong: Write to Ep0 Failed"));
- }
- }
- }
- }
-
-
-void DUsbClientController::ProcessSetClearDevFeature(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessSetClearDevFeature()"));
- if ( iDeviceState < UsbShai::EUsbPeripheralStateDefault)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- return;
- }
-
- TInt test_sel = 0;
-
- if (aPacket.iRequest == KUsbRequest_SetFeature)
- {
- switch (aPacket.iValue)
- {
- case KUsbFeature_RemoteWakeup:
- if ( iDeviceState < UsbShai::EUsbPeripheralStateAddress)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else
- {
- iRmWakeupStatus_Enabled = ETrue;
- }
- break;
-
- case KUsbFeature_TestMode:
- if (!iHighSpeed)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Request only supported in High-Speed mode"));
- iLastError = KErrGeneral;
- }
- else if (LowByte(aPacket.iIndex) != 0)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Lower byte of wIndex must be zero"));
- iLastError = KErrGeneral;
- }
- else
- {
- test_sel = HighByte(aPacket.iIndex);
- if ((test_sel < UsbShai::EUsbTestSelector_Test_J) || (test_sel > UsbShai::EUsbTestSelector_Test_Force_Enable))
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid test selector: %d", test_sel));
- iLastError = KErrGeneral;
- }
- }
- break;
-
- case KUsbFeature_B_HnpEnable:
- if (!iOtgSupport)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Request only supported on a OTG device"));
- iLastError = KErrGeneral;
- }
- else if (!(iOtgFuncMap & KUsbOtgAttr_HnpSupp))
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Request only valid if OTG device supports HNP"));
- iLastError = KErrGeneral;
- }
- else
- {
- iOtgFuncMap |= KUsbOtgAttr_B_HnpEnable;
- OtgFeaturesNotify();
- }
- break;
-
- case KUsbFeature_A_HnpSupport:
- if (!iOtgSupport)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Request only supported on a OTG device"));
- iLastError = KErrGeneral;
- }
- else if (!(iOtgFuncMap & KUsbOtgAttr_HnpSupp))
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Request only valid if OTG device supports HNP"));
- iLastError = KErrGeneral;
- }
- else
- {
- iOtgFuncMap |= KUsbOtgAttr_A_HnpSupport;
- OtgFeaturesNotify();
- }
- break;
-
- case KUsbFeature_A_AltHnpSupport:
- if (!iOtgSupport)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Request only supported on a OTG device"));
- iLastError = KErrGeneral;
- }
- else if (!(iOtgFuncMap & KUsbOtgAttr_HnpSupp))
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Request only valid if OTG device supports HNP"));
- iLastError = KErrGeneral;
- }
- else
- {
- iOtgFuncMap |= KUsbOtgAttr_A_AltHnpSupport;
- OtgFeaturesNotify();
- }
- break;
-
- default:
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Unknown feature requested"));
- iLastError = KErrGeneral;
- }
- }
- else // KUsbRequest_ClearFeature
- {
- switch (aPacket.iValue)
- {
- case KUsbFeature_RemoteWakeup:
- if ( iDeviceState < UsbShai::EUsbPeripheralStateAddress)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else
- {
- iRmWakeupStatus_Enabled = EFalse;
- }
- break;
-
- default:
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Unknown feature requested"));
- iLastError = KErrGeneral;
- }
- }
-
- if(iLastError == KErrNone)
- {
- // Sent out status packet if no error found.
- iConTransferMgr->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)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Entering HS Test Mode %d", test_sel));
- iController.EnterTestMode((UsbShai::TUsbTestModeSelector)test_sel);
- }
- }
- }
-
-
-void DUsbClientController::ProcessSetClearIfcFeature(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessSetClearIfcFeature()"));
- if ( iDeviceState < UsbShai::EUsbPeripheralStateConfigured)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else
- {
- // No interface features defined in USB spec, thus
- iLastError = KErrGeneral;
- }
- }
-
-
-void DUsbClientController::ProcessSetClearEpFeature(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessSetClearEpFeature()"));
- if (
- ((iDeviceState < UsbShai::EUsbPeripheralStateAddress) ||
- (iDeviceState == UsbShai::EUsbPeripheralStateAddress && (aPacket.iIndex & KUsbEpAddress_Portmask) != 0)))
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else if (aPacket.iValue != KUsbFeature_EndpointHalt)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Unknown feature requested"));
- iLastError = KErrGeneral;
- }
- else if (EndpointExists(aPacket.iIndex) == EFalse)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Endpoint does not exist"));
- iLastError = KErrGeneral;
- }
- else
- {
- const TInt ep = EpAddr2Idx(aPacket.iIndex);
- if (iRealEndpoints[ep].iLEndpoint->iInfo.iType == UsbShai::KUsbEpTypeControl ||
- iRealEndpoints[ep].iLEndpoint->iInfo.iType == UsbShai::KUsbEpTypeIsochronous)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Endpoint is Control or Isochronous"));
- iLastError = KErrGeneral;
- }
- else
- {
- SetClearHaltFeature(ep, aPacket.iRequest);
-
- // success: zero bytes data during status stage
- iConTransferMgr->SendEp0ZeroByteStatusPacket();
- }
- }
- }
-
-
-void DUsbClientController::ProcessSetAddress(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessSetAddress()"));
- if ( iDeviceState > UsbShai::EUsbPeripheralStateAddress)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else
- {
- const TUint16 addr = aPacket.iValue;
-
- if (addr > 127)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Bad address value: %d (>127)", addr));
- iLastError = KErrGeneral;
- }
- else if (addr == 0)
- {
- // Enter Default state (from Default or Address)
- NextDeviceState(UsbShai::EUsbPeripheralStateDefault);
- }
-
- __KTRACE_OPT(KUSB, Kern::Printf(" USB address: %d", addr));
-
- // If controller support hw acceleration,call set address first and then status
- if(iControllerProperties.iControllerCaps & UsbShai::KDevCapSetAddressAcceleration)
- {
- iController.SetDeviceAddress(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.
- iConTransferMgr->SendEp0ZeroByteStatusPacket();
-
- // If controller doesn't support hw acceleration, call set address after status
- if((iControllerProperties.iControllerCaps & UsbShai::KDevCapSetAddressAcceleration) == 0)
- {
- iController.SetDeviceAddress(addr);
- }
- }
- }
-
-
-void DUsbClientController::ProcessGetDescriptor(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessGetDescriptor()"));
- if ( iDeviceState < UsbShai::EUsbPeripheralStateDefault)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- return ;
- }
-
- // 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.
- __KTRACE_OPT(KUSB, Kern::Printf(" Couldn't retrieve descriptor"));
- iLastError = KErrGeneral;
- return;
- }
-
- __KTRACE_OPT(KUSB, Kern::Printf(" 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).
- __KTRACE_OPT(KPANIC, Kern::Printf(" 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
- __KTRACE_OPT(KUSB,
- Kern::Printf(" Data: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x ...",
- iEp0_TxBuf[0], iEp0_TxBuf[1], iEp0_TxBuf[2], iEp0_TxBuf[3],
- iEp0_TxBuf[4], iEp0_TxBuf[5], iEp0_TxBuf[6], iEp0_TxBuf[7]));
-#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 (iConTransferMgr->SetupEndpointZeroWrite(iEp0_TxBuf, size, zlp) == KErrNone)
- {
- iEp0WritePending = ETrue;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Wrong: Write to Ep0 Failed"));
- }
- }
-
-
-void DUsbClientController::ProcessSetDescriptor(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessSetDescriptor()"));
-#ifndef USB_SUPPORTS_SET_DESCRIPTOR_REQUEST
- iLastError = KErrGeneral;
- return;
-#else
- if ( iDeviceState < UsbShai::EUsbPeripheralStateAddress)
- {
- // Error: Invalid device state!
- iLastError = KErrGeneral;
- }
- else if (aPacket.iLength > KUsbcBufSz_Ep0Rx)
- {
- // Error: Our Rx buffer is too small! (Raise a defect to make it larger)
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Ep0_Rx buffer too small"));
- iLastError = KErrGeneral;
- }
- else
- {
- SetEp0DataOutVars();
- iConTransferMgr->SetupEndpointZeroRead();
- }
-#endif
- }
-
-void DUsbClientController::ProcessGetConfiguration(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessGetConfiguration()"));
- if ( iDeviceState < UsbShai::EUsbPeripheralStateAddress)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else if ( iDeviceState == UsbShai::EUsbPeripheralStateAddress && iCurrentConfig != 0)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: DeviceState Address && Config != 0"));
- iLastError = KErrGeneral;
- }
- else if ( iDeviceState == UsbShai::EUsbPeripheralStateConfigured && iCurrentConfig == 0)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: DeviceState Configured && Config == 0"));
- iLastError = KErrGeneral;
- }
- else
- {
- if (aPacket.iLength != 1) // "unspecified behavior"
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Warning: wLength != 1 (= %d)", aPacket.iLength));
- }
- __KTRACE_OPT(KUSB, Kern::Printf(" Reporting configuration value %d", iCurrentConfig));
- if (iConTransferMgr->SetupEndpointZeroWrite(&iCurrentConfig, sizeof(iCurrentConfig)) == KErrNone)
- {
- iEp0WritePending = ETrue;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Wrong: Write to Ep0 Failed"));
- }
- }
- }
-
-
-/** 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)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("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).
- const TInt value = aPacket.iValue;
-
- if ( iDeviceState < UsbShai::EUsbPeripheralStateAddress)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else if (value > 1) // we support only one configuration
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Configuration value too large: %d", value));
- iLastError = KErrGeneral;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" 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);
- __KTRACE_OPT(KUSB, Kern::Printf(" Called ClearHaltFeature() for %d endpoints", num));
- // success: zero bytes data during status stage
- iConTransferMgr->SendEp0ZeroByteStatusPacket();
- }
-
- return iLastError;
- }
-
-void DUsbClientController::ProcessGetInterface(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessGetInterface()"));
-
- const TInt number = aPacket.iIndex;
-
- if ( iDeviceState < UsbShai::EUsbPeripheralStateConfigured)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else if (iCurrentConfig == 0)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Device not configured"));
- iLastError = KErrGeneral;
- }
- else if (!InterfaceExists(number))
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Bad interface index: %d", number));
- iLastError = KErrGeneral;
- }
- else
- {
- // Send alternate setting code of iCurrentInterface of Interface(set) <number> of the current
- // config (iCurrentConfig).
- const TUint8 setting = InterfaceNumber2InterfacePointer(number)->iCurrentInterface;
- __KTRACE_OPT(KUSB, Kern::Printf(" Reporting interface setting %d", setting));
- if (iConTransferMgr->SetupEndpointZeroWrite(&setting, 1) == KErrNone)
- {
- iEp0WritePending = ETrue;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Wrong: Write to Ep0 Failed"));
- }
- }
- }
-
-
-void DUsbClientController::ProcessSetInterface(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessSetInterface()"));
-
- const TInt number = aPacket.iIndex;
-
- if ( iDeviceState < UsbShai::EUsbPeripheralStateConfigured)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else if (iCurrentConfig == 0)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Device not configured"));
- iLastError = KErrGeneral;
- }
- else if (!InterfaceExists(number))
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Bad interface index: %d", number));
- iLastError = KErrGeneral;
- }
- else
- {
- const TInt setting = aPacket.iValue;
- TUsbcInterfaceSet* const ifcset_ptr = InterfaceNumber2InterfacePointer(number);
- RPointerArray<TUsbcInterface>& ifcs = ifcset_ptr->iInterfaces;
- if (setting >= ifcs.Count())
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Alt Setting >= bNumAltSettings: %d", setting));
- iLastError = KErrGeneral;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" 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);
- }
- // success: zero bytes data during status stage
- iConTransferMgr->SendEp0ZeroByteStatusPacket();
- }
- }
- }
-
-
-void DUsbClientController::ProcessSynchFrame(const TUsbcSetup& aPacket)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProcessSynchFrame()"));
-
- const TInt ep = aPacket.iIndex;
-
- if ( iDeviceState < UsbShai::EUsbPeripheralStateConfigured)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- iLastError = KErrGeneral;
- }
- else if (EndpointExists(ep) == EFalse)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Endpoint does not exist"));
- iLastError = KErrGeneral;
- }
- else if (iRealEndpoints[EpAddr2Idx(ep)].iLEndpoint->iInfo.iType != UsbShai::KUsbEpTypeIsochronous)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Endpoint is not isochronous"));
- iLastError = KErrGeneral;
- }
- else
- {
- // We always send 0:
- *reinterpret_cast<TUint16*>(iEp0_TxBuf) = 0x00;
- if (iConTransferMgr->SetupEndpointZeroWrite(iEp0_TxBuf, 2) == KErrNone)
- {
- iEp0WritePending = ETrue;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Wrong: Write to Ep0 Failed"));
- }
- }
- }
-
-
-#ifdef USB_SUPPORTS_SET_DESCRIPTOR_REQUEST
-void DUsbClientController::ProceedSetDescriptor()
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ProceedSetDescriptor()"));
- // iEp0DataReceived already reflects the current buffer state
- if (iEp0DataReceived < iConTransferMgr->PktParser().DataLength())
- {
- // Not yet all data received => proceed
- return;
- }
- if (iEp0DataReceived > iConTransferMgr->PktParser().DataLength())
- {
- // Error: more data received than expected
- // but we don't care...
- }
- const TUint8 type = HighByte(iConTransferMgr->PktParser().Value());
- if (type == KUsbDescType_String)
- {
- // set/add new string descriptor
- }
- else
- {
- // set/add new ordinary descriptor
- }
- TUint8 index = LowByte(iConTransferMgr->PktParser().Value());
- TUint16 langid = iConTransferMgr->PktParser().Index();
- TUint16 length_total = iConTransferMgr->PktParser().DataLength();
-
- iConTransferMgr->SendEp0ZeroByteStatusPacket();
- }
-#endif
-
-
-// --- Secondary (Helper) Functions
-
-void DUsbClientController::SetClearHaltFeature(TInt aRealEndpoint, TUint8 aRequest)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::SetClearHaltFeature()"));
- if (aRequest == KUsbRequest_SetFeature)
- {
- if (iRealEndpoints[aRealEndpoint].iHalt)
- {
- // (This condition is not really an error)
- __KTRACE_OPT(KUSB, Kern::Printf(" Warning: HALT feature already set"));
- return;
- }
- __KTRACE_OPT(KUSB, Kern::Printf(" setting HALT feature for real endpoint %d",
- aRealEndpoint));
- iController.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.
- __KTRACE_OPT(KUSB, Kern::Printf(" Warning: HALT feature already cleared"));
- iController.ResetDataToggle(aRealEndpoint);
- return;
- }
- __KTRACE_OPT(KUSB, Kern::Printf(" clearing HALT feature for real endpoint %d",
- aRealEndpoint));
- iController.ResetDataToggle(aRealEndpoint);
- iController.ClearStallEndpoint(aRealEndpoint);
- iRealEndpoints[aRealEndpoint].iHalt = EFalse;
- }
- EpStatusNotify(aRealEndpoint); // only called if actually something changed
- }
-
-
-TInt DUsbClientController::ClearHaltFeature(TInt aRealEndpoint)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ClearHaltFeature()"));
- if (iRealEndpoints[aRealEndpoint].iHalt != EFalse)
- {
- iController.ClearStallEndpoint(aRealEndpoint);
- iRealEndpoints[aRealEndpoint].iHalt = EFalse;
- }
- return KErrNone;
- }
-
-
-void DUsbClientController::ChangeConfiguration(TUint16 aValue)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ChangeConfiguration()"));
- // New configuration is the same as the old one: 0
- if (iCurrentConfig == 0 && aValue == 0)
- {
- // no-op
- __KTRACE_OPT(KUSB, Kern::Printf(" Configuration: New == Old == 0 --> exiting"));
- return;
- }
- // New configuration is the same as the old one (but not 0)
- if (iCurrentConfig == aValue)
- {
- // no-op
- __KTRACE_OPT(KUSB, Kern::Printf(" Configuration: New == Old == %d --> exiting", aValue));
- return;
- }
- // Device is already configured
- if (iCurrentConfig != 0)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" 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)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Tearing down InterfaceSet %d", i));
- InterfaceSetTeardown(ifcsets[i]);
- }
- iCurrentConfig = 0;
- // Enter Address state (from Configured)
- if (iDeviceState == UsbShai::EUsbPeripheralStateConfigured)
- NextDeviceState(UsbShai::EUsbPeripheralStateAddress);
- }
- // Device gets a new configuration
- if (aValue != 0)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" 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)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Setting up InterfaceSet %d", i));
- InterfaceSetup(ifcsets[i]->iInterfaces[0]);
- }
- // Enter Configured state (from Address or Configured)
- NextDeviceState(UsbShai::EUsbPeripheralStateConfigured);
- }
- __KTRACE_OPT(KUSB, Kern::Printf(" New configuration: %d", iCurrentConfig));
- return;
- }
-
-
-void DUsbClientController::InterfaceSetup(TUsbcInterface* aIfc)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("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)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Setting Ep info size to %d (HS)", ep->iEpSize_Hs));
- ep->iInfo.iSize = ep->iEpSize_Hs;
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Setting Ep info size to %d (FS)", ep->iEpSize_Fs));
- ep->iInfo.iSize = ep->iEpSize_Fs;
- }
- const TInt idx = EpAddr2Idx(ep->iPEndpoint->iEndpointAddr);
- if (iController.ConfigureEndpoint(idx, ep->iInfo) != KErrNone)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" 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.
- __KTRACE_OPT(KUSB, Kern::Printf(" 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)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::InterfaceSetTeardown()"));
- if (aIfcSet->iInterfaces.Count() == 0)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" 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)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" real ep %d not configured: skipping", idx));
- continue;
- }
- if (iController.ResetDataToggle(idx) != KErrNone)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Endpoint %d data toggle reset failed", idx));
- }
- if (iController.DeConfigureEndpoint(idx) != KErrNone)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Endpoint %d de-configuration failed", idx));
- }
-
- __KTRACE_OPT(KUSB, Kern::Printf(" disconnecting real ep & logical ep"));
- ep->iPEndpoint->iLEndpoint = NULL;
- }
- if (aIfcSet->CurrentInterface() != 0)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" 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)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::ChangeInterface()"));
- TUsbcInterfaceSet* ifcset = aIfc->iInterfaceSet;
- const TUint8 setting = aIfc->iSettingCode;
- if (ifcset->iCurrentInterface == setting)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" New Ifc == old Ifc: nothing to do"));
- return;
- }
- __KTRACE_OPT(KUSB, Kern::Printf(" Setting new interface setting #%d", setting));
- InterfaceSetTeardown(ifcset);
- InterfaceSetup(aIfc);
- StatusNotify(static_cast<UsbShai::TUsbPeripheralState>(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)
- {
- __KTRACE_OPT(KUSB, Kern::Printf("DUsbClientController::DoForEveryEndpointInUse()"));
- aCount = 0;
- TUsbcConfiguration* const config = CurrentConfig();
- if (!config)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" 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;
- }
-
-// Data Tx is done.
-void DUsbClientController::ProcessDataInPacket(TInt aCount,TInt aErrCode)
- {
- // Clear Error Code
- iLastError = KErrNone;
-
- // For tx, no premature end is allowed.
- if(aErrCode != KErrNone)
- {
- // something wrong in hardware, we can do nothing as remedy
- // just stall the endpoint.
- iConTransferMgr->StallEndpoint(KEp0_In);
- iConTransferMgr->SetupEndpointZeroRead();
-
- // set err code to Error general if end point is stalled
- iLastError = KErrGeneral;
- }
- else
- {
- // 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 == UsbShai::EControllerWrite), Kern::Fault(KUsbPILPanicCat, __LINE__));
- p->iError = aErrCode;
- p->iTxBytes = aCount;
-
- // tell the client that the sending is done
- // later, it is possible that a status out packet comes in,
- // just ignore it.
- ProcessDataTransferDone(*p);
- }
- else
- {
- // we should never goes here
- iConTransferMgr->StallEndpoint(KEp0_In);
-
- // request not found
- iLastError = KErrNotFound;
- }
- }
- // else
- // it is our own who sending the data, no more action needed
- }
- }
-
-// Status Rx is done
-void DUsbClientController::ProcessStatusOutPacket(TInt aErrCode)
- {
- // Clear Error Code
- iLastError = KErrNone;
-
- // Dangdang, psl saying a status out packet recieved from
- // host, but, we already completed user's writting request, just ignore it.
-
- // any way, receiving this means no write is pending.
- iEp0WritePending = EFalse;
- }
-
-// Data Rx is (partial) done
-void DUsbClientController::ProcessDataOutPacket(TInt aCount,TInt aErrCode)
- {
- // Clear Error Code
- iLastError = KErrNone;
-
- if (aErrCode != KErrNone && aErrCode != KErrPrematureEnd)
- {
- // something wrong in hardware, we can do nothing as remedy
- // just stall the endpoint.
- iConTransferMgr->StallEndpoint(KEp0_Out);
- iConTransferMgr->SetupEndpointZeroRead();
-
- // set err code to Error general if end point is stalled
- iLastError = KErrGeneral;
- }
- else
- {
- // Trim aCount with iEp0MaxPacketSize per packet
- if (aCount > iEp0MaxPacketSize)
- {
- aCount = iEp0MaxPacketSize;
- }
-
- iEp0DataReceived += aCount;
-
- if (iEp0ClientId == NULL)
- {
- // it is us( not an app), who owns this transaction
- switch( iConTransferMgr->PktParser().Request())
- {
-#ifdef USB_SUPPORTS_SET_DESCRIPTOR_REQUEST
- case KUsbRequest_SetDescriptor:
- {
- memcpy(iEp0_RxCollectionBuf + iEp0DataReceived, iEp0_RxBuf, aCount);
-
- // Status will be sent in side this function
- // if we had recieved enough bytes
- ProceedSetDescriptor();
- }
- break;
-#endif
- default:
- {
- iConTransferMgr->StallEndpoint(KEp0_In);
- ResetEp0DataOutVars();
-
- // set err code to Error general if end point is stalled
- iLastError = KErrGeneral;
- }
- break;
- }
-
- if (iEp0DataReceived >= iConTransferMgr->PktParser().DataLength())
- {
- // all data seems now to be here
- ResetEp0DataOutVars();
- }
- }
- else
- {
- // it is an application who is requesting this data
- // pass the data on to a client
-
- // it is the client's responsibility of sending a status
- // packet back to host to indicate the whole transfer is
- // done
-
- // Find the client Request callback
- TSglQueIter<TUsbcRequestCallback> iter(iEp0ReadRequestCallbacks);
- TUsbcRequestCallback* p;
- while ((p = iter++) != NULL)
- {
- if (p->Owner() == iEp0ClientId)
- {
- memcpy(p->iBufferStart, iEp0_RxBuf, aCount);
- p->iError = KErrNone;
- *(p->iPacketSize) = aCount;
- p->iRxPackets = 1;
- *(p->iPacketIndex) = 0;
- break;
- }
- }
-
- // pass data to client if found one.
- if ( p != NULL)
- {
- ProcessDataTransferDone(*p);
-
- if (iEp0DataReceived >= iConTransferMgr->PktParser().DataLength())
- {
- // all data seems now to be here
- ResetEp0DataOutVars();
- }
-
- iLastError = KErrNone;
-
- }
- else
- {
- // that's bad, we found a client is request this data
- // but no matching request callback found.
-
- iEp0_RxExtraCount = aCount;
- //iEp0_RxExtraData = ETrue;
- //iEp0_RxExtraError = aErrCode;
- iEp0DataReceived -= aCount;
-
- // No status packet will be send to host since no client is reading this data,
- // waiting client to send a status packet.
-
- iLastError = KErrNotFound;
- }
- }
- }
- }
-
-// Status Tx is done
-void DUsbClientController::ProcessStatusInPacket(TInt aErrCode)
- {
- // Clear Error Code
- iLastError = KErrNone;
-
- // it is time to start a new read
- iEp0WritePending = EFalse;
- }
-
-//
-// Setup Rx is done
-//
-void DUsbClientController::ProcessSetupPacket(TInt aCount,TInt aErrCode)
- {
-
- if (aErrCode != KErrNone)
- {
- // something wrong in hardware, we can do nothing as remedy
- // just stall the endpoint.
- iConTransferMgr->StallEndpoint(KEp0_Out);
- iConTransferMgr->SetupEndpointZeroRead();
-
- // set err code to Error general if end point is stalled
- iLastError = KErrGeneral;
- }
-
- TUsbcSetup packet;
- Buffer2Setup(iEp0_RxBuf, packet);
-
- // Clear Error Code
- iLastError = KErrNone;
-
- // If this is a standard request, we can handle it here
- // not need to bother app layer
- if ((packet.iRequestType & KUsbRequestType_TypeMask) == KUsbRequestType_TypeStd)
- {
- // Fixme: this may not needed any more
- iEp0ReceivedNonStdRequest = EFalse;
- ProcessStandardRequest(aCount,packet);
- }
- else
- {
- // Fixme: This may not needed anymore
- iEp0ReceivedNonStdRequest = ETrue;
- ProcessNonStandardRequest(aCount,packet);
- }
- }
-
-#define USB_PROCESS_REQUEST(request,param) \
- do \
- { \
- Process ## request(param); \
- if (iLastError != KErrNone) \
- { \
- __KTRACE_OPT(KUSB, \
- Kern::Printf(" ProcessEp0SetupReceived: Stalling Ep0")); \
- iConTransferMgr->StallEndpoint(KEp0_In); \
- } \
- }while(0)
-
-
-//
-// Standard request
-// Please note that:Macro USB_PROCESS_REQUEST(xxx) will stall endpoint
-// if anything wrong during the process, in which case status packet is
-// not needed.
-//
-void DUsbClientController::ProcessStandardRequest(TInt /*aCount*/,const TUsbcSetup& aPacket)
- {
- switch (aPacket.iRequest)
- {
- case KUsbRequest_GetStatus:
- switch (aPacket.iRequestType & KUsbRequestType_DestMask)
- { // Recipient
- case KUsbRequestType_DestDevice:
- USB_PROCESS_REQUEST(GetDeviceStatus,aPacket);
- break;
-
- case KUsbRequestType_DestIfc:
- USB_PROCESS_REQUEST(GetInterfaceStatus,aPacket);
- break;
-
- case KUsbRequestType_DestEp:
- USB_PROCESS_REQUEST(GetEndpointStatus,aPacket);
- break;
-
- default:
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: GET STATUS - Other or Unknown recipient"));
- __KTRACE_OPT(KPANIC, Kern::Printf(" -> DUsbClientController::ProcessEp0SetupReceived: "
- "Stalling Ep0"));
- iConTransferMgr->StallEndpoint(KEp0_In);
- iLastError = KErrGeneral;
- break;
- }
- break;
-
- case KUsbRequest_ClearFeature:
- case KUsbRequest_SetFeature:
- switch (aPacket.iRequestType & KUsbRequestType_DestMask)
- { // Recipient
- case KUsbRequestType_DestDevice:
- USB_PROCESS_REQUEST(SetClearDevFeature,aPacket);
- break;
- case KUsbRequestType_DestIfc:
- // will 100% stall endpoint
- USB_PROCESS_REQUEST(SetClearIfcFeature,aPacket);
- break;
- case KUsbRequestType_DestEp:
- USB_PROCESS_REQUEST(SetClearEpFeature,aPacket);
- break;
- default:
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: SET/CLEAR FEATURE - "
- "Other or Unknown recipient"));
- __KTRACE_OPT(KPANIC, Kern::Printf(" -> Stalling Ep0"));
- iConTransferMgr->StallEndpoint(KEp0_In);
- iLastError = KErrGeneral;
- break;
- }
- break;
-
- case KUsbRequest_SetAddress:
- USB_PROCESS_REQUEST(SetAddress,aPacket);
- break;
-
- case KUsbRequest_GetDescriptor:
- USB_PROCESS_REQUEST(GetDescriptor,aPacket);
- break;
-
- case KUsbRequest_SetDescriptor:
- USB_PROCESS_REQUEST(SetDescriptor,aPacket);
- break;
-
- case KUsbRequest_GetConfig:
- USB_PROCESS_REQUEST(GetConfiguration,aPacket);
- break;
-
- case KUsbRequest_SetConfig:
- USB_PROCESS_REQUEST(SetConfiguration,aPacket);
- break;
-
- case KUsbRequest_GetInterface:
- USB_PROCESS_REQUEST(GetInterface,aPacket);
- break;
-
- case KUsbRequest_SetInterface:
- USB_PROCESS_REQUEST(SetInterface,aPacket);
- break;
-
- case KUsbRequest_SynchFrame:
- USB_PROCESS_REQUEST(SynchFrame,aPacket);
- break;
-
- default:
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Unknown/unsupported Std Setup Request"));
- __KTRACE_OPT(KPANIC, Kern::Printf(" -> Stalling Ep0"));
- iConTransferMgr->StallEndpoint(KEp0_In);
- iLastError = KErrGeneral;
- break;
- }
- }
-
-#undef USB_PROCESS_REQUEST
-
-//
-// class- or vendor-specific request
-// we dont send back any status to host in PIL for class- or vendor-specific request
-// if no client is waiting, stall the endpoint
-// if client is not ready, just record them and waiting for client to read them
-// (and, send a status packet)
-//
-void DUsbClientController::ProcessNonStandardRequest(TInt aCount,const TUsbcSetup& aPacket)
- {
- // Find out which client can handle this request
- const DBase* client = FindNonStandardRequestClient(aPacket.iRequestType & KUsbRequestType_DestMask,aPacket);
-
- // If client is valide
- if (client != NULL)
- {
- // Try to relay aPacket to the real recipient
- TSglQueIter<TUsbcRequestCallback> iter(iEp0ReadRequestCallbacks);
- TUsbcRequestCallback* p;
-
- // Find out the request callback with match the client
- // returned from last FindNonStandardRequestClient().
- while ((p = iter++) != NULL)
- {
- if (p->Owner() == client)
- {
- __ASSERT_DEBUG((p->iEndpointNum == 0), Kern::Fault(KUsbPILPanicCat, __LINE__));
- __ASSERT_DEBUG((p->iTransferDir == UsbShai::EControllerRead), Kern::Fault(KUsbPILPanicCat, __LINE__));
- __KTRACE_OPT(KUSB, Kern::Printf(" Found Ep0 read request"));
- if (aPacket.iLength != 0)
- {
- if ((aPacket.iRequestType & KUsbRequestType_DirMask) == KUsbRequestType_DirToDev)
- {
- // Data transfer & direction OUT => there'll be a DATA_OUT stage
- __KTRACE_OPT(KUSB, Kern::Printf(" Next is DATA_OUT: setting up DataOutVars"));
- SetEp0DataOutVars(client);
- }
- else if ((aPacket.iRequestType & KUsbRequestType_DirMask) == KUsbRequestType_DirToHost)
- {
- // For possible later use (ZLP).
- iEp0_TxNonStdCount = aPacket.iLength;
- }
- }
-
- // Found the request callback, jump out now
- break;
- }
- }
-
- // if a request callback matching the client is found,
- // complete the request
- if( p != NULL)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Ep0 read request completed to client"));
- memcpy(p->iBufferStart, iEp0_RxBuf, aCount);
- p->iError = KErrNone;
- *(p->iPacketSize) = aCount;
- p->iRxPackets = 1;
- *(p->iPacketIndex) = 0;
- ProcessDataTransferDone(*p);
- }
- else
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Ep0 read request not found: setting RxExtra vars (Setup)"));
- iEp0_RxExtraCount = aCount;
- //iEp0_RxExtraData = ETrue;
- //iEp0_RxExtraError = aErrCode;
- iSetupPacketPending = ETrue;
-
- // For setup packet,a zero bytes status is always needed
- iLastError = KErrNotFound;
- }
- }
- else // if (client == NULL)
- {
- // Pil don't know how to deal with non-standard request, stall endpoint
- __KTRACE_OPT(KPANIC, Kern::Printf(" Ep0 request error: Stalling Ep0"));
- iConTransferMgr->StallEndpoint(KEp0_In);
- iLastError = KErrGeneral;
- }
- }
-
-const DBase* DUsbClientController::FindNonStandardRequestClient(TUint8 aPacketTypeDestination,const TUsbcSetup& aPacket)
- {
- const DBase* client = NULL;
-
- switch (aPacketTypeDestination)
- { // 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 ( iDeviceState < UsbShai::EUsbPeripheralStateConfigured)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- }
- else
- {
- const TUsbcInterfaceSet* const ifcset_ptr =
- InterfaceNumber2InterfacePointer(aPacket.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)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Recipient says: NoEp0RequestsPlease"));
- }
- else
- {
- client = ifcset_ptr->iClientId;
- }
- }
- else
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Interface 0x%02x does not exist",
- aPacket.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 ( iDeviceState < UsbShai::EUsbPeripheralStateConfigured)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid device state"));
- }
- else if (EndpointExists(aPacket.iIndex) == EFalse)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Endpoint 0x%02x does not exist",
- aPacket.iIndex));
- }
- else
- {
- const TInt idx = EpAddr2Idx(aPacket.iIndex);
- const TUsbcInterfaceSet* const ifcset_ptr =
- iRealEndpoints[idx].iLEndpoint->iInterface->iInterfaceSet;
- if (ifcset_ptr->CurrentInterface()->iNoEp0Requests)
- {
- __KTRACE_OPT(KUSB, Kern::Printf(" Recipient says: NoEp0RequestsPlease"));
- }
- else
- {
- client = ifcset_ptr->iClientId;
- }
- }
- if (NKern::CurrentContext() == EThread)
- {
- NKern::FMSignal(&iMutex);
- }
- }
- break;
-
- default:
- {
- __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Other or Unknown recipient"));
- break;
- }
- }
-
- return client;
- }
-
-TInt DUsbClientController::ProcessSetupEndpointZeroRead()
- {
- __KTRACE_OPT(KPANIC, Kern::Printf("DUsbClientController:: Read EP0 Issued"));
- return iController.SetupEndpointZeroRead();
- }
-
-TInt DUsbClientController::ProcessSetupEndpointZeroWrite(const TUint8* aBuffer, TInt aLength, TBool aZlpReqd)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf("DUsbClientController:: Write EP0 Issued"));
- return iController.SetupEndpointZeroWrite(aBuffer,aLength,aZlpReqd);
- }
-
-TInt DUsbClientController::ProcessSendEp0ZeroByteStatusPacket()
- {
- __KTRACE_OPT(KPANIC, Kern::Printf("DUsbClientController:: Zero Status to EP0 Issued"));
- return iController.SendEp0ZeroByteStatusPacket();
- }
-
-TInt DUsbClientController::ProcessStallEndpoint(TInt aRealEndpoint)
- {
- __KTRACE_OPT(KPANIC, Kern::Printf("DUsbClientController:: EP0(%d) Stall Issued",aRealEndpoint));
- return iController.StallEndpoint(aRealEndpoint);
- }
-
-void DUsbClientController::ProcessEp0SetupPacketProceed()
- {
- __KTRACE_OPT(KPANIC, Kern::Printf("DUsbClientController:: Missed setup packet procced"));
- iController.Ep0ReadSetupPktProceed();
- }
-
-void DUsbClientController::ProcessEp0DataPacketProceed()
- {
- __KTRACE_OPT(KPANIC, Kern::Printf("DUsbClientController:: Missed data packet procced"));
- iController.Ep0ReadDataPktProceed();
- }
-
-// -eof-