usbhub.c File Reference

#include "usbhub.h"
#include <debug.h>
#include "dbg_uhub.h"
#include <ntddstor.h>

Include dependency graph for usbhub.c:

Go to the source code of this file.

Macros
#define	NDEBUG
#define	NDEBUG_USBHUB_SCE
#define	NDEBUG_USBHUB_PNP

Functions
NTSTATUS NTAPI	USBH_Wait (IN ULONG Milliseconds)
NTSTATUS NTAPI	USBH_GetConfigValue (IN PWSTR ValueName, IN ULONG ValueType, IN PVOID ValueData, IN ULONG ValueLength, IN PVOID Context, IN PVOID EntryContext)
VOID NTAPI	USBH_CompleteIrp (IN PIRP Irp, IN NTSTATUS CompleteStatus)
NTSTATUS NTAPI	USBH_PassIrp (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
NTSTATUS NTAPI	USBH_SyncIrpComplete (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp, IN PVOID Context)
BOOLEAN NTAPI	IsBitSet (IN PUCHAR BitMapAddress, IN USHORT Bit)
PUSBHUB_PORT_PDO_EXTENSION NTAPI	PdoExt (IN PDEVICE_OBJECT DeviceObject)
NTSTATUS NTAPI	USBH_WriteFailReasonID (IN PDEVICE_OBJECT DeviceObject, IN ULONG FailReason)
VOID NTAPI	USBH_UrbTimeoutDPC (IN PKDPC Dpc, IN PVOID DeferredContext, IN PVOID SystemArgument1, IN PVOID SystemArgument2)
NTSTATUS NTAPI	USBH_SetPdoRegistryParameter (IN PDEVICE_OBJECT DeviceObject, IN PCWSTR ValueName, IN PVOID Data, IN ULONG DataSize, IN ULONG Type, IN ULONG DevInstKeyType)
NTSTATUS NTAPI	USBH_SyncSubmitUrb (IN PDEVICE_OBJECT DeviceObject, IN PURB Urb)
NTSTATUS NTAPI	USBH_FdoSyncSubmitUrb (IN PDEVICE_OBJECT FdoDevice, IN PURB Urb)
NTSTATUS NTAPI	USBH_Transact (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PVOID TransferBuffer, IN ULONG BufferLen, IN BOOLEAN IsDeviceToHost, IN USHORT Function, IN BM_REQUEST_TYPE RequestType, IN UCHAR Request, IN USHORT RequestValue, IN USHORT RequestIndex)
NTSTATUS NTAPI	USBH_SyncResetPort (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT Port)
NTSTATUS NTAPI	USBH_GetDeviceType (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PUSB_DEVICE_HANDLE DeviceHandle, OUT USB_DEVICE_TYPE *OutDeviceType)
NTSTATUS NTAPI	USBHUB_GetExtendedHubInfo (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PUSB_EXTHUB_INFORMATION_0 HubInfoBuffer)
PUSBHUB_FDO_EXTENSION NTAPI	USBH_GetRootHubExtension (IN PUSBHUB_FDO_EXTENSION HubExtension)
NTSTATUS NTAPI	USBH_SyncGetRootHubPdo (IN PDEVICE_OBJECT DeviceObject, IN OUT PDEVICE_OBJECT *OutPdo1, IN OUT PDEVICE_OBJECT *OutPdo2)
NTSTATUS NTAPI	USBH_SyncGetHubCount (IN PDEVICE_OBJECT DeviceObject, IN OUT PULONG OutHubCount)
PUSB_DEVICE_HANDLE NTAPI	USBH_SyncGetDeviceHandle (IN PDEVICE_OBJECT DeviceObject)
NTSTATUS NTAPI	USBH_GetDeviceDescriptor (IN PDEVICE_OBJECT DeviceObject, IN PUSB_DEVICE_DESCRIPTOR HubDeviceDescriptor)
NTSTATUS NTAPI	USBH_SyncGetDeviceConfigurationDescriptor (IN PDEVICE_OBJECT DeviceObject, IN PUSB_CONFIGURATION_DESCRIPTOR ConfigDescriptor, IN ULONG NumberOfBytes, IN PULONG OutLength)
NTSTATUS NTAPI	USBH_GetConfigurationDescriptor (IN PDEVICE_OBJECT DeviceObject, IN PUSB_CONFIGURATION_DESCRIPTOR *OutDescriptor)
NTSTATUS NTAPI	USBH_SyncGetHubDescriptor (IN PUSBHUB_FDO_EXTENSION HubExtension)
NTSTATUS NTAPI	USBH_SyncGetStringDescriptor (IN PDEVICE_OBJECT DeviceObject, IN UCHAR Index, IN USHORT LanguageId, IN PUSB_STRING_DESCRIPTOR Descriptor, IN ULONG NumberOfBytes, IN PULONG OutLength, IN BOOLEAN IsValidateLength)
NTSTATUS NTAPI	USBH_SyncGetStatus (IN PDEVICE_OBJECT DeviceObject, IN PUSHORT OutStatus, IN USHORT Function, IN USHORT RequestIndex)
NTSTATUS NTAPI	USBH_SyncGetHubStatus (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PUSB_HUB_STATUS_AND_CHANGE HubStatus, IN ULONG Length)
NTSTATUS NTAPI	USBH_SyncClearHubStatus (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT RequestValue)
NTSTATUS NTAPI	USBH_SyncGetPortStatus (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT Port, IN PUSB_PORT_STATUS_AND_CHANGE PortStatus, IN ULONG Length)
NTSTATUS NTAPI	USBH_SyncClearPortStatus (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT Port, IN USHORT RequestValue)
NTSTATUS NTAPI	USBH_SyncPowerOnPort (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT Port, IN BOOLEAN IsWait)
NTSTATUS NTAPI	USBH_SyncPowerOnPorts (IN PUSBHUB_FDO_EXTENSION HubExtension)
NTSTATUS NTAPI	USBH_SyncDisablePort (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT Port)
BOOLEAN NTAPI	USBH_HubIsBusPowered (IN PDEVICE_OBJECT DeviceObject, IN PUSB_CONFIGURATION_DESCRIPTOR HubConfigDescriptor)
NTSTATUS NTAPI	USBH_ChangeIndicationAckChangeComplete (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp, IN PVOID Context)
NTSTATUS NTAPI	USBH_ChangeIndicationAckChange (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PIRP Irp, IN struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST *Urb, IN USHORT Port, IN USHORT RequestValue)
NTSTATUS NTAPI	USBH_ChangeIndicationProcessChange (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp, IN PVOID Context)
NTSTATUS NTAPI	USBH_ChangeIndicationQueryChange (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PIRP Irp, IN struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST *Urb, IN USHORT Port)
VOID NTAPI	USBH_ProcessHubStateChange (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PUSB_HUB_STATUS_AND_CHANGE HubStatus)
VOID NTAPI	USBH_ProcessPortStateChange (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT Port, IN PUSB_PORT_STATUS_AND_CHANGE PortStatus)
NTSTATUS NTAPI	USBH_GetPortStatus (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PULONG PortStatus)
NTSTATUS NTAPI	USBH_EnableParentPort (IN PUSBHUB_FDO_EXTENSION HubExtension)
NTSTATUS NTAPI	USBH_ResetInterruptPipe (IN PUSBHUB_FDO_EXTENSION HubExtension)
NTSTATUS NTAPI	USBH_ResetHub (IN PUSBHUB_FDO_EXTENSION HubExtension)
VOID NTAPI	USBH_ChangeIndicationWorker (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PVOID Context)
NTSTATUS NTAPI	USBH_ChangeIndication (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp, IN PVOID Context)
NTSTATUS NTAPI	USBH_SubmitStatusChangeTransfer (IN PUSBHUB_FDO_EXTENSION HubExtension)
NTSTATUS NTAPI	USBD_CreateDeviceEx (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PUSB_DEVICE_HANDLE *OutDeviceHandle, IN USB_PORT_STATUS UsbPortStatus, IN USHORT Port)
NTSTATUS NTAPI	USBD_RemoveDeviceEx (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PUSB_DEVICE_HANDLE DeviceHandle, IN ULONG Flags)
NTSTATUS NTAPI	USBD_InitializeDeviceEx (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PUSB_DEVICE_HANDLE DeviceHandle, IN PUCHAR DeviceDescriptorBuffer, IN ULONG DeviceDescriptorBufferLength, IN PUCHAR ConfigDescriptorBuffer, IN ULONG ConfigDescriptorBufferLength)
VOID NTAPI	USBHUB_SetDeviceHandleData (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PDEVICE_OBJECT UsbDevicePdo, IN PVOID DeviceHandle)
VOID NTAPI	USBHUB_FlushAllTransfers (IN PUSBHUB_FDO_EXTENSION HubExtension)
NTSTATUS NTAPI	USBD_GetDeviceInformationEx (IN PUSBHUB_PORT_PDO_EXTENSION PortExtension, IN PUSBHUB_FDO_EXTENSION HubExtension, IN PUSB_NODE_CONNECTION_INFORMATION_EX Info, IN ULONG Length, IN PUSB_DEVICE_HANDLE DeviceHandle)
NTSTATUS NTAPI	USBD_RestoreDeviceEx (IN PUSBHUB_FDO_EXTENSION HubExtension, IN OUT PUSB_DEVICE_HANDLE OldDeviceHandle, IN OUT PUSB_DEVICE_HANDLE NewDeviceHandle)
NTSTATUS NTAPI	USBH_AllocateWorkItem (PUSBHUB_FDO_EXTENSION HubExtension, PUSBHUB_IO_WORK_ITEM *OutHubIoWorkItem, PUSBHUB_WORKER_ROUTINE WorkerRoutine, SIZE_T BufferLength, PVOID *OutHubWorkItemBuffer, WORK_QUEUE_TYPE Type)
VOID NTAPI	USBH_Worker (IN PDEVICE_OBJECT DeviceObject, IN PVOID Context)
VOID NTAPI	USBH_QueueWorkItem (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PUSBHUB_IO_WORK_ITEM HubIoWorkItem)
VOID NTAPI	USBH_FreeWorkItem (IN PUSBHUB_IO_WORK_ITEM HubIoWorkItem)
VOID NTAPI	USBHUB_RootHubCallBack (IN PVOID Context)
NTSTATUS NTAPI	USBD_RegisterRootHubCallBack (IN PUSBHUB_FDO_EXTENSION HubExtension)
NTSTATUS NTAPI	USBD_UnRegisterRootHubCallBack (IN PUSBHUB_FDO_EXTENSION HubExtension)
VOID NTAPI	USBH_HubSetDWakeCompletion (IN PDEVICE_OBJECT DeviceObject, IN UCHAR MinorFunction, IN POWER_STATE PowerState, IN PVOID Context, IN PIO_STATUS_BLOCK IoStatus)
VOID NTAPI	USBH_HubQueuePortIdleIrps (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PLIST_ENTRY IdleList)
VOID NTAPI	USBH_HubCompleteQueuedPortIdleIrps (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PLIST_ENTRY IdleList, IN NTSTATUS NtStatus)
VOID NTAPI	USBH_FlushPortPwrList (IN PUSBHUB_FDO_EXTENSION HubExtension)
VOID NTAPI	USBH_HubCompletePortIdleIrps (IN PUSBHUB_FDO_EXTENSION HubExtension, IN NTSTATUS NtStatus)
VOID NTAPI	USBH_HubCancelIdleIrp (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PIRP IdleIrp)
BOOLEAN NTAPI	USBH_CheckIdleAbort (IN PUSBHUB_FDO_EXTENSION HubExtension, IN BOOLEAN IsWait, IN BOOLEAN IsExtCheck)
VOID NTAPI	USBH_FdoWaitWakeIrpCompletion (IN PDEVICE_OBJECT DeviceObject, IN UCHAR MinorFunction, IN POWER_STATE PowerState, IN PVOID Context, IN PIO_STATUS_BLOCK IoStatus)
NTSTATUS NTAPI	USBH_FdoSubmitWaitWakeIrp (IN PUSBHUB_FDO_EXTENSION HubExtension)
VOID NTAPI	USBH_FdoIdleNotificationCallback (IN PVOID Context)
VOID NTAPI	USBH_CompletePortIdleIrpsWorker (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PVOID Context)
VOID NTAPI	USBH_IdleCompletePowerHubWorker (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PVOID Context)
NTSTATUS NTAPI	USBH_FdoIdleNotificationRequestComplete (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp, IN PVOID Context)
NTSTATUS NTAPI	USBH_FdoSubmitIdleRequestIrp (IN PUSBHUB_FDO_EXTENSION HubExtension)
VOID NTAPI	USBH_CheckHubIdle (IN PUSBHUB_FDO_EXTENSION HubExtension)
VOID NTAPI	USBH_CheckIdleWorker (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PVOID Context)
VOID NTAPI	USBH_CheckIdleDeferred (IN PUSBHUB_FDO_EXTENSION HubExtension)
VOID NTAPI	USBH_PdoSetCapabilities (IN PUSBHUB_PORT_PDO_EXTENSION PortExtension)
NTSTATUS NTAPI	USBH_ProcessDeviceInformation (IN PUSBHUB_PORT_PDO_EXTENSION PortExtension)
BOOLEAN NTAPI	USBH_CheckDeviceIDUnique (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT idVendor, IN USHORT idProduct, IN PVOID SerialNumber, IN USHORT SN_DescriptorLength)
BOOLEAN NTAPI	USBH_ValidateSerialNumberString (IN PUSHORT SerialNumberString)
NTSTATUS NTAPI	USBH_CheckDeviceLanguage (IN PDEVICE_OBJECT DeviceObject, IN USHORT LanguageId)
NTSTATUS NTAPI	USBH_GetSerialNumberString (IN PDEVICE_OBJECT DeviceObject, IN LPWSTR *OutSerialNumber, IN PUSHORT OutDescriptorLength, IN USHORT LanguageId, IN UCHAR Index)
NTSTATUS NTAPI	USBH_CreateDevice (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT Port, IN USB_PORT_STATUS UsbPortStatus, IN ULONG IsWait)
NTSTATUS NTAPI	USBH_ResetDevice (IN PUSBHUB_FDO_EXTENSION HubExtension, IN USHORT Port, IN BOOLEAN IsKeepDeviceData, IN BOOLEAN IsWait)
NTSTATUS NTAPI	USBH_PdoDispatch (IN PUSBHUB_PORT_PDO_EXTENSION PortExtension, IN PIRP Irp)
NTSTATUS NTAPI	USBH_FdoDispatch (IN PUSBHUB_FDO_EXTENSION HubExtension, IN PIRP Irp)
NTSTATUS NTAPI	USBH_AddDevice (IN PDRIVER_OBJECT DriverObject, IN PDEVICE_OBJECT LowerPDO)
VOID NTAPI	USBH_DriverUnload (IN PDRIVER_OBJECT DriverObject)
NTSTATUS NTAPI	USBH_HubDispatch (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
NTSTATUS NTAPI	USBH_RegQueryGenericUSBDeviceString (PVOID USBDeviceString)
NTSTATUS NTAPI	DriverEntry (IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath)

Variables
PWSTR	GenericUSBDeviceString = NULL

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 10 of file usbhub.c.

NDEBUG_USBHUB_PNP

#define NDEBUG_USBHUB_PNP

Definition at line 14 of file usbhub.c.

NDEBUG_USBHUB_SCE

#define NDEBUG_USBHUB_SCE

Definition at line 13 of file usbhub.c.

Function Documentation

DriverEntry()

NTSTATUS NTAPI DriverEntry	(	IN PDRIVER_OBJECT	DriverObject,
		IN PUNICODE_STRING	RegistryPath
	)

Definition at line 5115 of file usbhub.c.

{
    DPRINT("USBHUB: DriverEntry - %wZ\n", RegistryPath);
 
    DriverObject->DriverExtension->AddDevice = USBH_AddDevice;
    DriverObject->DriverUnload = USBH_DriverUnload;
 
    DriverObject->MajorFunction[IRP_MJ_CREATE] = USBH_HubDispatch;
    DriverObject->MajorFunction[IRP_MJ_CLOSE] = USBH_HubDispatch;
 
    DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = USBH_HubDispatch;
    DriverObject->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = USBH_HubDispatch;
 
    DriverObject->MajorFunction[IRP_MJ_PNP] = USBH_HubDispatch;
    DriverObject->MajorFunction[IRP_MJ_POWER] = USBH_HubDispatch;
    DriverObject->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = USBH_HubDispatch;
 
    USBH_RegQueryGenericUSBDeviceString(&GenericUSBDeviceString);
 
    return STATUS_SUCCESS;
}

IsBitSet()

BOOLEAN NTAPI IsBitSet	(	IN PUCHAR	BitMapAddress,
		IN USHORT	Bit
	)

Definition at line 121 of file usbhub.c.

{
    BOOLEAN IsSet;
 
    IsSet = (BitMapAddress[Bit / 8] & (1 << (Bit & 7))) != 0;
    DPRINT("IsBitSet: Bit - %lX, IsSet - %x\n", Bit, IsSet);
    return IsSet;
}

Referenced by USBH_ChangeIndication(), and USBH_ChangeIndicationWorker().

PdoExt()

PUSBHUB_PORT_PDO_EXTENSION NTAPI PdoExt

(

IN PDEVICE_OBJECT

DeviceObject

)

Definition at line 133 of file usbhub.c.

{
    PVOID PdoExtension;
 
    DPRINT("PdoExt: DeviceObject - %p\n", DeviceObject);
 
    if (DeviceObject)
    {
        PdoExtension = DeviceObject->DeviceExtension;
    }
    else
    {
        PdoExtension = NULL;
    }
 
    return (PUSBHUB_PORT_PDO_EXTENSION)PdoExtension;
}

Referenced by _Requires_lock_held_(), IsaPdoFilterResourceRequirements(), IsaPdoPnp(), IsaPdoQueryBusInformation(), IsaPdoQueryCapabilities(), IsaPdoQueryDeviceRelations(), IsaPdoQueryDeviceText(), IsaPdoQueryDeviceUsageNotification(), IsaPdoQueryId(), IsaPdoQueryPnpDeviceState(), IsaPdoQueryResourceRequirements(), IsaPdoQueryResources(), IsaPdoRemoveDevice(), IsaPdoStartReadPort(), IsaPnpCreateLogicalDeviceRequirements(), IsaPnpCreateLogicalDeviceResources(), IsaPnpCreateReadPortDO(), IsaPnpCreateReadPortDORequirements(), IsaPnpCreateReadPortDOResources(), IsaPnpRemoveLogicalDeviceDO(), IsaReadPortRemoveDevice(), PcmciaPdoPlugPlay(), PcmciaPdoSetPowerState(), USBH_FdoQueryBusRelations(), USBH_FdoSurpriseRemoveDevice(), and USBH_PdoRemoveDevice().

USBD_CreateDeviceEx()

NTSTATUS NTAPI USBD_CreateDeviceEx	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PUSB_DEVICE_HANDLE *	OutDeviceHandle,
		IN USB_PORT_STATUS	UsbPortStatus,
		IN USHORT	Port
	)

Definition at line 2508 of file usbhub.c.

{
    PUSB_DEVICE_HANDLE HubDeviceHandle;
    PUSB_BUSIFFN_CREATE_USB_DEVICE CreateUsbDevice;
 
    DPRINT("USBD_CreateDeviceEx: Port - %x, UsbPortStatus - 0x%04X\n",
           Port,
           UsbPortStatus.AsUshort16);
 
    CreateUsbDevice = HubExtension->BusInterface.CreateUsbDevice;
 
    if (!CreateUsbDevice)
    {
        return STATUS_NOT_IMPLEMENTED;
    }
 
    HubDeviceHandle = USBH_SyncGetDeviceHandle(HubExtension->LowerDevice);
 
    return CreateUsbDevice(HubExtension->BusInterface.BusContext,
                           OutDeviceHandle,
                           HubDeviceHandle,
                           UsbPortStatus.AsUshort16,
                           Port);
}

Referenced by USBH_CreateDevice(), and USBH_ResetDevice().

USBD_GetDeviceInformationEx()

NTSTATUS NTAPI USBD_GetDeviceInformationEx	(	IN PUSBHUB_PORT_PDO_EXTENSION	PortExtension,
		IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PUSB_NODE_CONNECTION_INFORMATION_EX	Info,
		IN ULONG	Length,
		IN PUSB_DEVICE_HANDLE	DeviceHandle
	)

Definition at line 2639 of file usbhub.c.

{
    PUSB_BUSIFFN_GET_DEVICE_INFORMATION QueryDeviceInformation;
    PUSB_DEVICE_INFORMATION_0 DeviceInfo;
    SIZE_T DeviceInfoLength;
    PUSB_NODE_CONNECTION_INFORMATION_EX NodeInfo;
    SIZE_T NodeInfoLength;
    ULONG PipeNumber;
    ULONG dummy;
    NTSTATUS Status;
 
    DPRINT("USBD_GetDeviceInformationEx ... \n");
 
    QueryDeviceInformation = HubExtension->BusInterface.QueryDeviceInformation;
 
    if (!QueryDeviceInformation)
    {
        Status = STATUS_NOT_IMPLEMENTED;
        return Status;
    }
 
    DeviceInfoLength = sizeof(USB_DEVICE_INFORMATION_0);
 
    while (TRUE)
    {
        DeviceInfo = ExAllocatePoolWithTag(PagedPool,
                                           DeviceInfoLength,
                                           USB_HUB_TAG);
 
        if (!DeviceInfo)
        {
            return STATUS_INSUFFICIENT_RESOURCES;
        }
 
        RtlZeroMemory(DeviceInfo, DeviceInfoLength);
 
        DeviceInfo->InformationLevel = 0;
 
        Status = QueryDeviceInformation(HubExtension->BusInterface.BusContext,
                                        DeviceHandle,
                                        DeviceInfo,
                                        DeviceInfoLength,
                                        &dummy);
 
        if (Status != STATUS_BUFFER_TOO_SMALL)
        {
            break;
        }
 
        DeviceInfoLength = DeviceInfo->ActualLength;
 
        ExFreePoolWithTag(DeviceInfo, USB_HUB_TAG);
    }
 
    NodeInfo = NULL;
    NodeInfoLength = 0;
 
    if (NT_SUCCESS(Status))
    {
        NodeInfoLength = (sizeof(USB_NODE_CONNECTION_INFORMATION_EX) - sizeof(USB_PIPE_INFO)) +
                         DeviceInfo->NumberOfOpenPipes * sizeof(USB_PIPE_INFO);
 
        NodeInfo = ExAllocatePoolWithTag(PagedPool, NodeInfoLength, USB_HUB_TAG);
 
        if (!NodeInfo)
        {
            ExFreePoolWithTag(DeviceInfo, USB_HUB_TAG);
            return STATUS_INSUFFICIENT_RESOURCES;
        }
 
        RtlZeroMemory(NodeInfo, NodeInfoLength);
 
        NodeInfo->ConnectionIndex = Info->ConnectionIndex;
 
        RtlCopyMemory(&NodeInfo->DeviceDescriptor,
                      &DeviceInfo->DeviceDescriptor,
                      sizeof(USB_DEVICE_DESCRIPTOR));
 
        NodeInfo->CurrentConfigurationValue = DeviceInfo->CurrentConfigurationValue;
        NodeInfo->Speed = DeviceInfo->DeviceSpeed;
        NodeInfo->DeviceIsHub = PortExtension->PortPdoFlags & USBHUB_PDO_FLAG_HUB_DEVICE;
        NodeInfo->DeviceAddress = DeviceInfo->DeviceAddress;
        NodeInfo->NumberOfOpenPipes = DeviceInfo->NumberOfOpenPipes;
        NodeInfo->ConnectionStatus = Info->ConnectionStatus;
 
        for (PipeNumber = 0;
             PipeNumber < DeviceInfo->NumberOfOpenPipes;
             PipeNumber++)
        {
            RtlCopyMemory(&NodeInfo->PipeList[PipeNumber],
                          &DeviceInfo->PipeList[PipeNumber],
                          sizeof(USB_PIPE_INFO));
        }
    }
 
    ExFreePoolWithTag(DeviceInfo, USB_HUB_TAG);
 
    if (NodeInfo)
    {
        if (NodeInfoLength <= Length)
        {
            Length = NodeInfoLength;
        }
        else
        {
            Status = STATUS_BUFFER_TOO_SMALL;
        }
 
        RtlCopyMemory(Info, NodeInfo, Length);
 
        ExFreePoolWithTag(NodeInfo, USB_HUB_TAG);
    }
 
    return Status;
}

Referenced by USBH_IoctlGetNodeConnectionInformation().

USBD_InitializeDeviceEx()

NTSTATUS NTAPI USBD_InitializeDeviceEx	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PUSB_DEVICE_HANDLE	DeviceHandle,
		IN PUCHAR	DeviceDescriptorBuffer,
		IN ULONG	DeviceDescriptorBufferLength,
		IN PUCHAR	ConfigDescriptorBuffer,
		IN ULONG	ConfigDescriptorBufferLength
	)

Definition at line 2562 of file usbhub.c.

{
    NTSTATUS Status;
    PUSB_BUSIFFN_INITIALIZE_USB_DEVICE InitializeUsbDevice;
    PUSB_BUSIFFN_GET_USB_DESCRIPTORS GetUsbDescriptors;
 
    DPRINT("USBD_InitializeDeviceEx: ... \n");
 
    InitializeUsbDevice = HubExtension->BusInterface.InitializeUsbDevice;
    GetUsbDescriptors = HubExtension->BusInterface.GetUsbDescriptors;
 
    if (!InitializeUsbDevice || !GetUsbDescriptors)
    {
        return STATUS_NOT_IMPLEMENTED;
    }
 
    Status = InitializeUsbDevice(HubExtension->BusInterface.BusContext,
                                 DeviceHandle);
 
    if (!NT_SUCCESS(Status))
    {
        return Status;
    }
 
    return GetUsbDescriptors(HubExtension->BusInterface.BusContext,
                             DeviceHandle,
                             DeviceDescriptorBuffer,
                             &DeviceDescriptorBufferLength,
                             ConfigDescriptorBuffer,
                             &ConfigDescriptorBufferLength);
}

Referenced by USBH_CreateDevice(), and USBH_ResetDevice().

USBD_RegisterRootHubCallBack()

NTSTATUS NTAPI USBD_RegisterRootHubCallBack

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 2986 of file usbhub.c.

{
    PUSB_BUSIFFN_ROOTHUB_INIT_NOTIFY RootHubInitNotification;
 
    DPRINT("USBD_RegisterRootHubCallBack: ... \n");
 
    RootHubInitNotification = HubExtension->BusInterface.RootHubInitNotification;
 
    if (!RootHubInitNotification)
    {
        return STATUS_NOT_IMPLEMENTED;
    }
 
    KeClearEvent(&HubExtension->RootHubNotificationEvent);
 
    return RootHubInitNotification(HubExtension->BusInterface.BusContext,
                                   HubExtension,
                                   USBHUB_RootHubCallBack);
}

Referenced by USBH_StartHubFdoDevice().

USBD_RemoveDeviceEx()

NTSTATUS NTAPI USBD_RemoveDeviceEx	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PUSB_DEVICE_HANDLE	DeviceHandle,
		IN ULONG	Flags
	)

Definition at line 2538 of file usbhub.c.

{
    PUSB_BUSIFFN_REMOVE_USB_DEVICE RemoveUsbDevice;
 
    DPRINT("USBD_RemoveDeviceEx: DeviceHandle - %p, Flags - %X\n",
           DeviceHandle,
           Flags);
 
    RemoveUsbDevice = HubExtension->BusInterface.RemoveUsbDevice;
 
    if (!RemoveUsbDevice)
    {
        return STATUS_NOT_IMPLEMENTED;
    }
 
    return RemoveUsbDevice(HubExtension->BusInterface.BusContext,
                           DeviceHandle,
                           Flags);
}

Referenced by USBH_CreateDevice(), USBH_FdoCleanup(), USBH_FdoQueryBusRelations(), USBH_PdoRemoveDevice(), USBH_ProcessPortStateChange(), USBH_ResetDevice(), and USBH_ResetPortWorker().

USBD_RestoreDeviceEx()

NTSTATUS NTAPI USBD_RestoreDeviceEx	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN OUT PUSB_DEVICE_HANDLE	OldDeviceHandle,
		IN OUT PUSB_DEVICE_HANDLE	NewDeviceHandle
	)

Definition at line 2761 of file usbhub.c.

{
    PUSB_BUSIFFN_RESTORE_DEVICE RestoreUsbDevice;
    NTSTATUS Status;
 
    DPRINT("USBD_RestoreDeviceEx: HubExtension - %p, OldDeviceHandle - %p, NewDeviceHandle - %p\n",
           HubExtension,
           OldDeviceHandle,
           NewDeviceHandle);
 
    RestoreUsbDevice = HubExtension->BusInterface.RestoreUsbDevice;
 
    if (RestoreUsbDevice)
    {
        Status = RestoreUsbDevice(HubExtension->BusInterface.BusContext,
                                  OldDeviceHandle,
                                  NewDeviceHandle);
    }
    else
    {
        Status = STATUS_NOT_IMPLEMENTED;
    }
 
    return Status;
}

Referenced by USBH_ResetDevice().

USBD_UnRegisterRootHubCallBack()

NTSTATUS NTAPI USBD_UnRegisterRootHubCallBack

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 3008 of file usbhub.c.

{
    PUSB_BUSIFFN_ROOTHUB_INIT_NOTIFY RootHubInitNotification;
    NTSTATUS Status;
 
    DPRINT("USBD_UnRegisterRootHubCallBack ... \n");
 
    RootHubInitNotification = HubExtension->BusInterface.RootHubInitNotification;
 
    if (!RootHubInitNotification)
    {
        return STATUS_NOT_IMPLEMENTED;
    }
 
    Status = RootHubInitNotification(HubExtension->BusInterface.BusContext,
                                     NULL,
                                     NULL);
 
    if (!NT_SUCCESS(Status))
    {
        KeWaitForSingleObject(&HubExtension->RootHubNotificationEvent,
                              Executive,
                              KernelMode,
                              FALSE,
                              NULL);
    }
 
    return Status;
}

Referenced by USBH_FdoCleanup().

USBH_AddDevice()

NTSTATUS NTAPI USBH_AddDevice	(	IN PDRIVER_OBJECT	DriverObject,
		IN PDEVICE_OBJECT	LowerPDO
	)

Definition at line 4947 of file usbhub.c.

{
    PDEVICE_OBJECT DeviceObject;
    NTSTATUS Status;
    PUSBHUB_FDO_EXTENSION HubExtension;
    PDEVICE_OBJECT LowerDevice;
 
    DPRINT("USBH_AddDevice: DriverObject - %p, LowerPDO - %p\n",
           DriverObject,
           LowerPDO);
 
    DeviceObject = NULL;
 
    Status = IoCreateDevice(DriverObject,
                            sizeof(USBHUB_FDO_EXTENSION),
                            NULL,
                            0x8600,
                            FILE_AUTOGENERATED_DEVICE_NAME,
                            FALSE,
                            &DeviceObject);
 
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("USBH_AddDevice: IoCreateDevice() fail\n");
 
        if (DeviceObject)
        {
            IoDeleteDevice(DeviceObject);
        }
 
        return Status;
    }
 
    DPRINT("USBH_AddDevice: DeviceObject - %p\n", DeviceObject);
 
    HubExtension = DeviceObject->DeviceExtension;
    RtlZeroMemory(HubExtension, sizeof(USBHUB_FDO_EXTENSION));
 
    HubExtension->Common.ExtensionType = USBH_EXTENSION_TYPE_HUB;
 
    LowerDevice = IoAttachDeviceToDeviceStack(DeviceObject, LowerPDO);
 
    if (!LowerDevice)
    {
        DPRINT1("USBH_AddDevice: IoAttachDeviceToDeviceStack() fail\n");
 
        if (DeviceObject)
        {
            IoDeleteDevice(DeviceObject);
        }
 
        return STATUS_UNSUCCESSFUL;
    }
 
    DPRINT("USBH_AddDevice: LowerDevice  - %p\n", LowerDevice);
 
    HubExtension->Common.SelfDevice = DeviceObject;
 
    HubExtension->LowerPDO = LowerPDO;
    HubExtension->LowerDevice = LowerDevice;
 
    KeInitializeSemaphore(&HubExtension->IdleSemaphore, 1, 1);
 
    DeviceObject->Flags |= DO_POWER_PAGABLE;
    DeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
 
    DPRINT("USBH_AddDevice: call IoWMIRegistrationControl() UNIMPLEMENTED. FIXME\n");
 
    return Status;
}

Referenced by DriverEntry().

USBH_AllocateWorkItem()

NTSTATUS NTAPI USBH_AllocateWorkItem	(	PUSBHUB_FDO_EXTENSION	HubExtension,
		PUSBHUB_IO_WORK_ITEM *	OutHubIoWorkItem,
		PUSBHUB_WORKER_ROUTINE	WorkerRoutine,
		SIZE_T	BufferLength,
		PVOID *	OutHubWorkItemBuffer,
		WORK_QUEUE_TYPE	Type
	)

Definition at line 2791 of file usbhub.c.

{
    PUSBHUB_IO_WORK_ITEM HubIoWorkItem;
    PIO_WORKITEM WorkItem;
    PVOID WorkItemBuffer;
 
    DPRINT("USBH_AllocateWorkItem: ... \n");
 
    if (!(HubExtension->HubFlags & USBHUB_FDO_FLAG_WITEM_INIT))
    {
        return STATUS_INVALID_PARAMETER;
    }
 
    HubIoWorkItem = ExAllocatePoolWithTag(NonPagedPool,
                                          sizeof(USBHUB_IO_WORK_ITEM),
                                          USB_HUB_TAG);
 
    if (!HubIoWorkItem)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    RtlZeroMemory(HubIoWorkItem, sizeof(USBHUB_IO_WORK_ITEM));
 
    WorkItem = IoAllocateWorkItem(HubExtension->Common.SelfDevice);
 
    HubIoWorkItem->HubWorkItem = WorkItem;
 
    if (!WorkItem)
    {
        ExFreePoolWithTag(HubIoWorkItem, USB_HUB_TAG);
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    if (BufferLength && OutHubWorkItemBuffer)
    {
        WorkItemBuffer = ExAllocatePoolWithTag(NonPagedPool,
                                               BufferLength,
                                               USB_HUB_TAG);
 
        HubIoWorkItem->HubWorkItemBuffer = WorkItemBuffer;
 
        if (!WorkItemBuffer)
        {
            IoFreeWorkItem(HubIoWorkItem->HubWorkItem);
            ExFreePoolWithTag(HubIoWorkItem, USB_HUB_TAG);
 
            return STATUS_INSUFFICIENT_RESOURCES;
        }
 
        RtlZeroMemory(WorkItemBuffer, BufferLength);
    }
    else
    {
        HubIoWorkItem->HubWorkItemBuffer = NULL;
    }
 
    HubIoWorkItem->HubWorkItemType = Type;
    HubIoWorkItem->HubExtension = HubExtension;
    HubIoWorkItem->HubWorkerRoutine = WorkerRoutine;
 
    if (OutHubIoWorkItem)
    {
        *OutHubIoWorkItem = HubIoWorkItem;
    }
 
    if (OutHubWorkItemBuffer)
    {
        *OutHubWorkItemBuffer = HubIoWorkItem->HubWorkItemBuffer;
    }
 
    return STATUS_SUCCESS;
}

Referenced by USBH_ChangeIndication(), USBH_CheckIdleDeferred(), USBH_FdoIdleNotificationRequestComplete(), USBH_PdoIoctlResetPort(), and USBH_PortIdleNotificationCancelRoutine().

USBH_ChangeIndication()

NTSTATUS NTAPI USBH_ChangeIndication	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp,
		IN PVOID	Context
	)

Definition at line 2319 of file usbhub.c.

{
    PUSBHUB_FDO_EXTENSION HubExtension;
    USBD_STATUS UrbStatus;
    BOOLEAN IsErrors = FALSE;
    PUSBHUB_IO_WORK_ITEM HubWorkItem;
    PUSBHUB_STATUS_CHANGE_CONTEXT HubWorkItemBuffer;
    USHORT NumPorts;
    USHORT Port;
    NTSTATUS Status;
    PVOID Bitmap;
    ULONG BufferLength;
 
    HubExtension = Context;
    UrbStatus = HubExtension->SCEWorkerUrb.Hdr.Status;
 
    DPRINT_SCE("USBH_ChangeIndication: IrpStatus - %x, UrbStatus - %x, HubFlags - %lX\n",
               Irp->IoStatus.Status,
               UrbStatus,
               HubExtension->HubFlags);
 
    if (NT_ERROR(Irp->IoStatus.Status) || USBD_ERROR(UrbStatus) ||
       (HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_FAILED) ||
       (HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_STOPPING))
    {
        HubExtension->RequestErrors++;
 
        IsErrors = TRUE;
 
        KeSetEvent(&HubExtension->StatusChangeEvent,
                   EVENT_INCREMENT,
                   FALSE);
 
        if (HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_STOPPING ||
            HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_FAILED ||
            HubExtension->RequestErrors > USBHUB_MAX_REQUEST_ERRORS ||
            Irp->IoStatus.Status == STATUS_DELETE_PENDING)
        {
            DPRINT_SCE("USBH_ChangeIndication: HubExtension->RequestErrors - %x\n",
                       HubExtension->RequestErrors);
 
            return STATUS_MORE_PROCESSING_REQUIRED;
        }
 
        DPRINT_SCE("USBH_ChangeIndication: HubExtension->RequestErrors - %x\n",
                   HubExtension->RequestErrors);
    }
    else
    {
        HubExtension->RequestErrors = 0;
    }
 
    BufferLength = sizeof(USBHUB_STATUS_CHANGE_CONTEXT) +
                   HubExtension->SCEBitmapLength;
 
    Status = USBH_AllocateWorkItem(HubExtension,
                                   &HubWorkItem,
                                   USBH_ChangeIndicationWorker,
                                   BufferLength,
                                   (PVOID *)&HubWorkItemBuffer,
                                   DelayedWorkQueue);
 
    if (!NT_SUCCESS(Status))
    {
        return STATUS_MORE_PROCESSING_REQUIRED;
    }
 
    RtlZeroMemory(HubWorkItemBuffer, BufferLength);
 
    HubWorkItemBuffer->IsRequestErrors = FALSE;
 
    if (IsErrors)
    {
        HubWorkItemBuffer->IsRequestErrors = TRUE;
    }
 
    if (InterlockedIncrement(&HubExtension->ResetRequestCount) == 1)
    {
        KeClearEvent(&HubExtension->ResetEvent);
    }
 
    HubWorkItemBuffer->HubExtension = HubExtension;
 
    HubExtension->WorkItemToQueue = HubWorkItem;
 
    Bitmap = HubWorkItemBuffer + 1;
 
    RtlCopyMemory(Bitmap,
                  HubExtension->SCEBitmap,
                  HubExtension->SCEBitmapLength);
 
    NumPorts = HubExtension->HubDescriptor->bNumberOfPorts;
 
    for (Port = 0; Port <= NumPorts; ++Port)
    {
        if (IsBitSet(Bitmap, Port))
        {
            break;
        }
    }
 
    if (Port > NumPorts)
    {
        Port = 0;
    }
 
    Status = USBH_ChangeIndicationQueryChange(HubExtension,
                                              HubExtension->ResetPortIrp,
                                              &HubExtension->SCEWorkerUrb,
                                              Port);
 
    if (NT_ERROR(Status))
    {
        HubExtension->HubFlags |= USBHUB_FDO_FLAG_DEVICE_FAILED;
    }
 
    return STATUS_MORE_PROCESSING_REQUIRED;
}

Referenced by USBH_SubmitStatusChangeTransfer().

USBH_ChangeIndicationAckChange()

NTSTATUS NTAPI USBH_ChangeIndicationAckChange	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PIRP	Irp,
		IN struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST *	Urb,
		IN USHORT	Port,
		IN USHORT	RequestValue
	)

Definition at line 1657 of file usbhub.c.

{
    PIO_STACK_LOCATION IoStack;
    BM_REQUEST_TYPE RequestType;
 
    DPRINT_SCE("USBH_ChangeIndicationAckChange: ... \n");
 
    Urb->Hdr.Length = sizeof(struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST);
    Urb->Hdr.Function = URB_FUNCTION_CLASS_OTHER;
    Urb->Hdr.UsbdDeviceHandle = NULL;
 
    Urb->TransferFlags = USBD_SHORT_TRANSFER_OK;
    Urb->TransferBufferLength = 0;
    Urb->TransferBuffer = NULL;
    Urb->TransferBufferMDL = NULL;
    Urb->UrbLink = NULL;
 
    RequestType.B = 0;
    RequestType.Recipient = BMREQUEST_TO_OTHER;
    RequestType.Type = BMREQUEST_CLASS;
    RequestType.Dir = BMREQUEST_HOST_TO_DEVICE;
 
    Urb->RequestTypeReservedBits = RequestType.B;
    Urb->Request = USB_REQUEST_CLEAR_FEATURE;
    Urb->Index = Port;
    Urb->Value = RequestValue;
 
    IoInitializeIrp(Irp,
                    IoSizeOfIrp(HubExtension->LowerDevice->StackSize),
                    HubExtension->LowerDevice->StackSize);
 
    IoStack = IoGetNextIrpStackLocation(Irp);
 
    IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
    IoStack->Parameters.Others.Argument1 = Urb;
    IoStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_INTERNAL_USB_SUBMIT_URB;
 
    IoSetCompletionRoutine(Irp,
                           USBH_ChangeIndicationAckChangeComplete,
                           HubExtension,
                           TRUE,
                           TRUE,
                           TRUE);
 
    return IoCallDriver(HubExtension->LowerDevice, Irp);
}

Referenced by USBH_ChangeIndicationProcessChange().

USBH_ChangeIndicationAckChangeComplete()

NTSTATUS NTAPI USBH_ChangeIndicationAckChangeComplete	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp,
		IN PVOID	Context
	)

Definition at line 1618 of file usbhub.c.

{
    PUSBHUB_FDO_EXTENSION HubExtension;
    PVOID Event;
    USHORT Port;
 
    HubExtension = Context;
 
    DPRINT_SCE("USBH_ChangeIndicationAckChangeComplete: ... \n");
 
    ASSERT(HubExtension->Port > 0);
    Port = HubExtension->Port - 1;
 
    HubExtension->PortData[Port].PortStatus = HubExtension->PortStatus;
 
    Event = InterlockedExchangePointer((PVOID)&HubExtension->pResetPortEvent,
                                       NULL);
 
    if (Event)
    {
        KeSetEvent(Event, EVENT_INCREMENT, FALSE);
    }
 
    USBH_SubmitStatusChangeTransfer(HubExtension);
 
    if (!InterlockedDecrement(&HubExtension->ResetRequestCount))
    {
        KeSetEvent(&HubExtension->ResetEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
 
    return STATUS_MORE_PROCESSING_REQUIRED;
}

Referenced by USBH_ChangeIndicationAckChange().

USBH_ChangeIndicationProcessChange()

NTSTATUS NTAPI USBH_ChangeIndicationProcessChange	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp,
		IN PVOID	Context
	)

Definition at line 1710 of file usbhub.c.

{
    PUSBHUB_FDO_EXTENSION HubExtension;
    PUSBHUB_IO_WORK_ITEM WorkItem;
    USHORT RequestValue;
 
    HubExtension = Context;
 
    DPRINT_SCE("USBH_ChangeIndicationProcessChange: PortStatus - %lX\n",
               HubExtension->PortStatus.AsUlong32);
 
    if ((NT_SUCCESS(Irp->IoStatus.Status) ||
        USBD_SUCCESS(HubExtension->SCEWorkerUrb.Hdr.Status)) &&
        (HubExtension->PortStatus.PortChange.Usb20PortChange.ResetChange ||
         HubExtension->PortStatus.PortChange.Usb20PortChange.PortEnableDisableChange))
    {
        if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
        {
            KeSetEvent(&HubExtension->PendingRequestEvent,
                       EVENT_INCREMENT,
                       FALSE);
        }
 
        USBH_FreeWorkItem(HubExtension->WorkItemToQueue);
 
        HubExtension->WorkItemToQueue = NULL;
 
        if (HubExtension->PortStatus.PortChange.Usb20PortChange.ResetChange)
        {
           RequestValue = USBHUB_FEATURE_C_PORT_RESET;
        }
        else
        {
            RequestValue = USBHUB_FEATURE_C_PORT_ENABLE;
        }
 
        USBH_ChangeIndicationAckChange(HubExtension,
                                       HubExtension->ResetPortIrp,
                                       &HubExtension->SCEWorkerUrb,
                                       HubExtension->Port,
                                       RequestValue);
    }
    else
    {
        ASSERT(HubExtension->WorkItemToQueue != NULL);
 
        WorkItem = HubExtension->WorkItemToQueue;
        HubExtension->WorkItemToQueue = NULL;
 
        USBH_QueueWorkItem(HubExtension, WorkItem);
    }
 
    return STATUS_MORE_PROCESSING_REQUIRED;
}

Referenced by USBH_ChangeIndicationQueryChange().

USBH_ChangeIndicationQueryChange()

NTSTATUS NTAPI USBH_ChangeIndicationQueryChange	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PIRP	Irp,
		IN struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST *	Urb,
		IN USHORT	Port
	)

Definition at line 1769 of file usbhub.c.

{
    PUSBHUB_IO_WORK_ITEM WorkItem;
    NTSTATUS Status;
    PIO_STACK_LOCATION IoStack;
    BM_REQUEST_TYPE RequestType;
 
    DPRINT_SCE("USBH_ChangeIndicationQueryChange: Port - %x\n", Port);
 
    InterlockedIncrement(&HubExtension->PendingRequestCount);
 
    if (!Port)
    {
        ASSERT(HubExtension->WorkItemToQueue != NULL);
 
        WorkItem = HubExtension->WorkItemToQueue;
        HubExtension->WorkItemToQueue = NULL;
 
        USBH_QueueWorkItem(HubExtension, WorkItem);
 
        return STATUS_SUCCESS;
    }
 
    Urb->Hdr.Length = sizeof(struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST);
    Urb->Hdr.UsbdDeviceHandle = NULL;
    Urb->Hdr.Function = URB_FUNCTION_CLASS_OTHER;
 
    Urb->TransferFlags = USBD_SHORT_TRANSFER_OK | USBD_TRANSFER_DIRECTION_IN;
    Urb->TransferBuffer = &HubExtension->PortStatus;
    Urb->TransferBufferLength = sizeof(HubExtension->PortStatus);
    Urb->TransferBufferMDL = NULL;
    Urb->UrbLink = NULL;
 
    RequestType.B = 0;
    RequestType.Recipient = BMREQUEST_TO_OTHER;
    RequestType.Type = BMREQUEST_CLASS;
    RequestType.Dir = BMREQUEST_DEVICE_TO_HOST;
 
    Urb->RequestTypeReservedBits = RequestType.B;
    Urb->Request = USB_REQUEST_GET_STATUS;
    Urb->Value = 0;
    Urb->Index = Port;
 
    HubExtension->Port = Port;
 
    IoInitializeIrp(Irp,
                    IoSizeOfIrp(HubExtension->LowerDevice->StackSize),
                    HubExtension->LowerDevice->StackSize);
 
    IoStack = IoGetNextIrpStackLocation(Irp);
 
    IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
    IoStack->Parameters.Others.Argument1 = Urb;
    IoStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_INTERNAL_USB_SUBMIT_URB;
 
    IoSetCompletionRoutine(Irp,
                           USBH_ChangeIndicationProcessChange,
                           HubExtension,
                           TRUE,
                           TRUE,
                           TRUE);
 
    Status = IoCallDriver(HubExtension->LowerDevice, Irp);
 
    return Status;
}

Referenced by USBH_ChangeIndication().

USBH_ChangeIndicationWorker()

VOID NTAPI USBH_ChangeIndicationWorker	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PVOID	Context
	)

Definition at line 2146 of file usbhub.c.

{
    PUSBHUB_FDO_EXTENSION LowerHubExtension;
    PUSBHUB_PORT_PDO_EXTENSION LowerPortExtension;
    PUSBHUB_STATUS_CHANGE_CONTEXT WorkItem;
    USB_PORT_STATUS_AND_CHANGE PortStatus;
    USB_HUB_STATUS_AND_CHANGE HubStatus;
    NTSTATUS Status;
    USHORT Port = 0;
 
    DPRINT_SCE("USBH_ChangeIndicationWorker ... \n");
 
    WorkItem = Context;
 
    KeWaitForSingleObject(&HubExtension->HubSemaphore,
                          Executive,
                          KernelMode,
                          FALSE,
                          NULL);
 
    if (HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_STOPPING)
    {
        KeSetEvent(&HubExtension->StatusChangeEvent,
                   EVENT_INCREMENT,
                   FALSE);
 
        goto Exit;
    }
 
    if (!HubExtension->RequestErrors)
    {
        goto Enum;
    }
 
    DPRINT_SCE("USBH_ChangeIndicationWorker: RequestErrors - %x\n",
               HubExtension->RequestErrors);
 
    if (HubExtension->LowerPDO == HubExtension->RootHubPdo)
    {
        goto Enum;
    }
 
    LowerPortExtension = HubExtension->LowerPDO->DeviceExtension;
 
    if (LowerPortExtension->PortPdoFlags & USBHUB_PDO_FLAG_POWER_D1_OR_D2)
    {
        goto Enum;
    }
 
    LowerHubExtension = LowerPortExtension->HubExtension;
 
    if (!LowerHubExtension)
    {
        goto Enum;
    }
 
    Status = USBH_SyncGetPortStatus(LowerHubExtension,
                                    LowerPortExtension->PortNumber,
                                    &PortStatus,
                                    sizeof(USB_PORT_STATUS_AND_CHANGE));
 
    if (!NT_SUCCESS(Status) ||
        !PortStatus.PortStatus.Usb20PortStatus.CurrentConnectStatus)
    {
        HubExtension->HubFlags |= USBHUB_FDO_FLAG_DEVICE_REMOVED;
 
        KeSetEvent(&HubExtension->StatusChangeEvent,
                   EVENT_INCREMENT,
                   FALSE);
 
        goto Exit;
    }
 
    if (!(HubExtension->HubFlags & USBHUB_FDO_FLAG_ESD_RECOVERING))
    {
        HubExtension->HubFlags |= USBHUB_FDO_FLAG_ESD_RECOVERING;
 
        DPRINT1("USBH_ChangeIndicationWorker: USBHUB_FDO_FLAG_ESD_RECOVERING FIXME\n");
        DbgBreakPoint();
 
        goto Exit;
    }
 
Enum:
 
    if (WorkItem->IsRequestErrors)
    {
        USBH_ResetHub(HubExtension);
    }
    else
    {
        for (Port = 0;
             Port < HubExtension->HubDescriptor->bNumberOfPorts;
             Port++)
        {
            if (IsBitSet((PUCHAR)(WorkItem + 1), Port))
            {
                break;
            }
        }
 
        if (Port)
        {
            Status = USBH_SyncGetPortStatus(HubExtension,
                                            Port,
                                            &PortStatus,
                                            sizeof(PortStatus));
        }
        else
        {
            Status = USBH_SyncGetHubStatus(HubExtension,
                                           &HubStatus,
                                           sizeof(HubStatus));
        }
 
        if (NT_SUCCESS(Status))
        {
            if (Port)
            {
                USBH_ProcessPortStateChange(HubExtension,
                                            Port,
                                            &PortStatus);
            }
            else
            {
                USBH_ProcessHubStateChange(HubExtension,
                                           &HubStatus);
            }
        }
        else
        {
            HubExtension->RequestErrors++;
 
            if (HubExtension->RequestErrors > USBHUB_MAX_REQUEST_ERRORS)
            {
                HubExtension->HubFlags |= USBHUB_FDO_FLAG_DEVICE_FAILED;
                goto Exit;
            }
        }
    }
 
    USBH_SubmitStatusChangeTransfer(HubExtension);
 
Exit:
 
    KeReleaseSemaphore(&HubExtension->HubSemaphore,
                       LOW_REALTIME_PRIORITY,
                       1,
                       FALSE);
 
    if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
    {
        KeSetEvent(&HubExtension->PendingRequestEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
 
    if (!InterlockedDecrement((PLONG)&HubExtension->ResetRequestCount))
    {
        KeSetEvent(&HubExtension->ResetEvent,
                   EVENT_INCREMENT,
                   FALSE);
 
        if (HubExtension->HubFlags & USBHUB_FDO_FLAG_DEFER_CHECK_IDLE)
        {
            USBH_CheckHubIdle(HubExtension);
        }
    }
}

Referenced by USBH_ChangeIndication().

USBH_CheckDeviceIDUnique()

BOOLEAN NTAPI USBH_CheckDeviceIDUnique	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	idVendor,
		IN USHORT	idProduct,
		IN PVOID	SerialNumber,
		IN USHORT	SN_DescriptorLength
	)

Definition at line 4167 of file usbhub.c.

{
    PDEVICE_OBJECT PortDevice;
    PUSBHUB_PORT_PDO_EXTENSION PortExtension;
    ULONG Port;
    SIZE_T NumberBytes;
 
    DPRINT("USBH_CheckDeviceIDUnique: idVendor - 0x%04X, idProduct - 0x%04X\n",
           idVendor,
           idProduct);
 
    if (!HubExtension->HubDescriptor->bNumberOfPorts)
    {
        return TRUE;
    }
 
    for (Port = 0; Port < HubExtension->HubDescriptor->bNumberOfPorts; Port++)
    {
        PortDevice = HubExtension->PortData[Port].DeviceObject;
 
        if (PortDevice)
        {
            PortExtension = PortDevice->DeviceExtension;
 
            if (PortExtension->DeviceDescriptor.idVendor == idVendor &&
                PortExtension->DeviceDescriptor.idProduct == idProduct &&
                PortExtension->SN_DescriptorLength == SN_DescriptorLength)
            {
                if (PortExtension->SerialNumber)
                {
                    NumberBytes = RtlCompareMemory(PortExtension->SerialNumber,
                                                   SerialNumber,
                                                   SN_DescriptorLength);
 
                    if (NumberBytes == SN_DescriptorLength)
                    {
                        return FALSE;
                    }
                }
            }
        }
    }
 
    return TRUE;
}

Referenced by USBH_CreateDevice().

USBH_CheckDeviceLanguage()

NTSTATUS NTAPI USBH_CheckDeviceLanguage	(	IN PDEVICE_OBJECT	DeviceObject,
		IN USHORT	LanguageId
	)

Definition at line 4242 of file usbhub.c.

{
    PUSB_STRING_DESCRIPTOR Descriptor;
    NTSTATUS Status;
    ULONG NumSymbols;
    ULONG ix;
    PWCHAR pSymbol;
    ULONG Length;
 
    DPRINT("USBH_CheckDeviceLanguage: LanguageId - 0x%04X\n", LanguageId);
 
    Descriptor = ExAllocatePoolWithTag(NonPagedPool,
                                       MAXIMUM_USB_STRING_LENGTH,
                                       USB_HUB_TAG);
 
    if (!Descriptor)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    RtlZeroMemory(Descriptor, MAXIMUM_USB_STRING_LENGTH);
 
    Status = USBH_SyncGetStringDescriptor(DeviceObject,
                                          0,
                                          0,
                                          Descriptor,
                                          MAXIMUM_USB_STRING_LENGTH,
                                          &Length,
                                          TRUE);
 
    if (!NT_SUCCESS(Status) ||
        Length < sizeof(USB_COMMON_DESCRIPTOR))
    {
        goto Exit;
    }
 
    NumSymbols = (Length -
                  FIELD_OFFSET(USB_STRING_DESCRIPTOR, bString)) / sizeof(WCHAR);
 
    pSymbol = Descriptor->bString;
 
    for (ix = 1; ix < NumSymbols; ix++)
    {
        if (*pSymbol == (WCHAR)LanguageId)
        {
            Status = STATUS_SUCCESS;
            goto Exit;
        }
 
        pSymbol++;
    }
 
    Status = STATUS_NOT_SUPPORTED;
 
Exit:
    ExFreePoolWithTag(Descriptor, USB_HUB_TAG);
    return Status;
}

Referenced by USBH_GetSerialNumberString(), and USBH_PdoQueryDeviceText().

USBH_CheckHubIdle()

VOID NTAPI USBH_CheckHubIdle

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 3808 of file usbhub.c.

{
    PDEVICE_OBJECT PdoDevice;
    PUSBHUB_PORT_PDO_EXTENSION PortExtension;
    PUSBHUB_PORT_DATA PortData;
    ULONG HubFlags;
    ULONG Port;
    KIRQL Irql;
    BOOLEAN IsHubIdle = FALSE;
    BOOLEAN IsAllPortsIdle;
    BOOLEAN IsHubCheck = TRUE;
 
    DPRINT("USBH_CheckHubIdle: FIXME !!! HubExtension - %p\n", HubExtension);
 
return; //HACK: delete it line after fixing Power Manager!!!
 
    KeAcquireSpinLock(&HubExtension->CheckIdleSpinLock, &Irql);
 
    if (HubExtension->HubFlags & USBHUB_FDO_FLAG_CHECK_IDLE_LOCK)
    {
        KeReleaseSpinLock(&HubExtension->CheckIdleSpinLock, Irql);
        return;
    }
 
    HubExtension->HubFlags |= USBHUB_FDO_FLAG_CHECK_IDLE_LOCK;
    KeReleaseSpinLock(&HubExtension->CheckIdleSpinLock, Irql);
 
    if (USBH_GetRootHubExtension(HubExtension)->SystemPowerState.SystemState != PowerSystemWorking)
    {
        KeAcquireSpinLock(&HubExtension->CheckIdleSpinLock, &Irql);
        HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_CHECK_IDLE_LOCK;
        KeReleaseSpinLock(&HubExtension->CheckIdleSpinLock, Irql);
        return;
    }
 
    HubFlags = HubExtension->HubFlags;
    DPRINT("USBH_CheckHubIdle: HubFlags - %lX\n", HubFlags);
 
    if (!(HubFlags & USBHUB_FDO_FLAG_DEVICE_STARTED) ||
        !(HubFlags & USBHUB_FDO_FLAG_DO_ENUMERATION))
    {
        goto Exit;
    }
 
    if (HubFlags & USBHUB_FDO_FLAG_NOT_ENUMERATED ||
        HubFlags & USBHUB_FDO_FLAG_ENUM_POST_RECOVER ||
        HubFlags & USBHUB_FDO_FLAG_DEVICE_FAILED ||
        HubFlags & USBHUB_FDO_FLAG_DEVICE_STOPPING ||
        HubFlags & USBHUB_FDO_FLAG_DEVICE_REMOVED ||
        HubFlags & USBHUB_FDO_FLAG_STATE_CHANGING ||
        HubFlags & USBHUB_FDO_FLAG_WAKEUP_START ||
        HubFlags & USBHUB_FDO_FLAG_ESD_RECOVERING)
    {
        goto Exit;
    }
 
    if (HubExtension->ResetRequestCount)
    {
        HubExtension->HubFlags |= USBHUB_FDO_FLAG_DEFER_CHECK_IDLE;
        goto Exit;
    }
 
    HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_DEFER_CHECK_IDLE;
 
    InterlockedIncrement(&HubExtension->PendingRequestCount);
 
    KeWaitForSingleObject(&HubExtension->ResetDeviceSemaphore,
                          Executive,
                          KernelMode,
                          FALSE,
                          NULL);
 
    IoAcquireCancelSpinLock(&Irql);
 
    IsAllPortsIdle = TRUE;
 
    PortData = HubExtension->PortData;
 
    for (Port = 0;
         Port < HubExtension->HubDescriptor->bNumberOfPorts;
         Port++)
    {
        PdoDevice = PortData[Port].DeviceObject;
 
        if (PdoDevice)
        {
            PortExtension = PdoDevice->DeviceExtension;
 
            if (!PortExtension->IdleNotificationIrp)
            {
                DPRINT("USBH_CheckHubIdle: PortExtension - %p\n",
                       PortExtension);
 
                IsAllPortsIdle = FALSE;
                IsHubCheck = FALSE;
 
                break;
            }
        }
    }
 
    if (IsHubCheck &&
        !(HubExtension->HubFlags & USBHUB_FDO_FLAG_WAIT_IDLE_REQUEST))
    {
        KeClearEvent(&HubExtension->IdleEvent);
        HubExtension->HubFlags |= USBHUB_FDO_FLAG_WAIT_IDLE_REQUEST;
        IsHubIdle = TRUE;
    }
 
    IoReleaseCancelSpinLock(Irql);
 
    KeReleaseSemaphore(&HubExtension->ResetDeviceSemaphore,
                       LOW_REALTIME_PRIORITY,
                       1,
                       FALSE);
 
    if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
    {
        KeSetEvent(&HubExtension->PendingRequestEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
 
    DPRINT("USBH_CheckHubIdle: IsAllPortsIdle - %x, IsHubIdle - %x\n",
           IsAllPortsIdle,
           IsHubIdle);
 
    if (IsAllPortsIdle && IsHubIdle)
    {
        USBH_FdoSubmitIdleRequestIrp(HubExtension);
    }
 
Exit:
    KeAcquireSpinLock(&HubExtension->CheckIdleSpinLock, &Irql);
    HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_CHECK_IDLE_LOCK;
    KeReleaseSpinLock(&HubExtension->CheckIdleSpinLock, Irql);
}

Referenced by USBH_ChangeIndicationWorker(), USBH_CheckIdleWorker(), and USBH_DeviceControl().

USBH_CheckIdleAbort()

BOOLEAN NTAPI USBH_CheckIdleAbort	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN BOOLEAN	IsWait,
		IN BOOLEAN	IsExtCheck
	)

Definition at line 3221 of file usbhub.c.

{
    PDEVICE_OBJECT PdoDevice;
    PUSBHUB_PORT_PDO_EXTENSION PortExtension;
    PUSBHUB_PORT_DATA PortData;
    ULONG Port;
    BOOLEAN Result = FALSE;
 
    DPRINT("USBH_CheckIdleAbort: ... \n");
 
    InterlockedIncrement(&HubExtension->PendingRequestCount);
 
    if (IsWait == TRUE)
    {
        KeWaitForSingleObject(&HubExtension->ResetDeviceSemaphore,
                              Executive,
                              KernelMode,
                              FALSE,
                              NULL);
    }
 
    PortData = HubExtension->PortData;
 
    for (Port = 0; Port < HubExtension->HubDescriptor->bNumberOfPorts; Port++)
    {
        PdoDevice = PortData[Port].DeviceObject;
 
        if (PdoDevice)
        {
            PortExtension = PdoDevice->DeviceExtension;
 
            if (PortExtension->PoRequestCounter)
            {
                Result = TRUE;
                goto Wait;
            }
        }
    }
 
    if (IsExtCheck == TRUE)
    {
        PortData = HubExtension->PortData;
 
        for (Port = 0;
             Port < HubExtension->HubDescriptor->bNumberOfPorts;
             Port++)
        {
            PdoDevice = PortData[Port].DeviceObject;
 
            if (PdoDevice)
            {
                PortExtension = PdoDevice->DeviceExtension;
                InterlockedExchange(&PortExtension->StateBehindD2, 0);
            }
        }
    }
 
Wait:
 
    if (IsWait == TRUE)
    {
        KeReleaseSemaphore(&HubExtension->ResetDeviceSemaphore,
                           LOW_REALTIME_PRIORITY,
                           1,
                           FALSE);
    }
 
    if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
    {
        KeSetEvent(&HubExtension->PendingRequestEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
 
    return Result;
}

Referenced by USBH_FdoIdleNotificationCallback(), and USBH_FdoPower().

USBH_CheckIdleDeferred()

VOID NTAPI USBH_CheckIdleDeferred

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 3957 of file usbhub.c.

{
    PUSBHUB_IO_WORK_ITEM HubIoWorkItem;
    NTSTATUS Status;
 
    DPRINT("USBH_CheckIdleDeferred: HubExtension - %p\n", HubExtension);
 
    Status = USBH_AllocateWorkItem(HubExtension,
                                   &HubIoWorkItem,
                                   USBH_CheckIdleWorker,
                                   0,
                                   NULL,
                                   DelayedWorkQueue);
 
    DPRINT("USBH_CheckIdleDeferred: HubIoWorkItem - %p\n", HubIoWorkItem);
 
    if (NT_SUCCESS(Status))
    {
        USBH_QueueWorkItem(HubExtension, HubIoWorkItem);
    }
}

Referenced by USBH_FdoDeferPoRequestCompletion(), USBH_FdoPnP(), USBH_FdoPower(), USBH_PdoRemoveDevice(), and USBH_PortIdleNotificationRequest().

USBH_CheckIdleWorker()

VOID NTAPI USBH_CheckIdleWorker	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PVOID	Context
	)

Definition at line 3948 of file usbhub.c.

{
    DPRINT("USBH_CheckIdleWorker: ... \n");
    USBH_CheckHubIdle(HubExtension);
}

Referenced by USBH_CheckIdleDeferred().

USBH_CompleteIrp()

VOID NTAPI USBH_CompleteIrp	(	IN PIRP	Irp,
		IN NTSTATUS	CompleteStatus
	)

Definition at line 63 of file usbhub.c.

{
    if (CompleteStatus != STATUS_SUCCESS)
    {
        DPRINT1("USBH_CompleteIrp: Irp - %p, CompleteStatus - %X\n",
                Irp,
                CompleteStatus);
    }
 
    Irp->IoStatus.Status = CompleteStatus;
    IoCompleteRequest(Irp, IO_NO_INCREMENT);
}

Referenced by USBH_DeviceControl(), USBH_FdoDispatch(), USBH_FdoQueryBusRelations(), USBH_FdoStartDevice(), USBH_IoctlGetDescriptor(), USBH_IoctlGetHubCapabilities(), USBH_IoctlGetNodeConnectionAttributes(), USBH_IoctlGetNodeConnectionDriverKeyName(), USBH_IoctlGetNodeConnectionInformation(), USBH_IoctlGetNodeInformation(), USBH_IoctlGetNodeName(), USBH_PdoDispatch(), USBH_PdoInternalControl(), USBH_PdoIoctlGetPortStatus(), USBH_PdoIoctlResetPort(), USBH_PdoUrbFilter(), USBH_ResetPortWorker(), and USBH_StartHubFdoDevice().

USBH_CompletePortIdleIrpsWorker()

VOID NTAPI USBH_CompletePortIdleIrpsWorker	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PVOID	Context
	)

Definition at line 3576 of file usbhub.c.

{
    PUSBHUB_IDLE_PORT_CONTEXT IdlePortContext;
    NTSTATUS NtStatus;
    NTSTATUS Status;
    BOOLEAN IsFlush = FALSE;
 
    DPRINT("USBH_CompletePortIdleIrpsWorker ... \n");
 
    IdlePortContext = Context;
    NtStatus = IdlePortContext->Status;
 
    USBH_HubCompleteQueuedPortIdleIrps(HubExtension,
                                       &IdlePortContext->PwrList,
                                       NtStatus);
 
    DPRINT1("USBH_CompletePortIdleIrpsWorker: USBH_RegQueryFlushPortPowerIrpsFlag() UNIMPLEMENTED. FIXME\n");
    Status = STATUS_NOT_IMPLEMENTED;// USBH_RegQueryFlushPortPowerIrpsFlag(&IsFlush);
 
    if (NT_SUCCESS(Status))
    {
        if (IsFlush)
        {
            USBH_FlushPortPwrList(HubExtension);
        }
    }
}

Referenced by USBH_FdoIdleNotificationRequestComplete().

USBH_CreateDevice()

NTSTATUS NTAPI USBH_CreateDevice	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	Port,
		IN USB_PORT_STATUS	UsbPortStatus,
		IN ULONG	IsWait
	)

Definition at line 4379 of file usbhub.c.

{
    ULONG PdoNumber = 0;
    WCHAR CharDeviceName[64];
    UNICODE_STRING DeviceName;
    PDEVICE_OBJECT DeviceObject = NULL;
    PUSBHUB_PORT_PDO_EXTENSION PortExtension;
    PUSB_DEVICE_HANDLE DeviceHandle;
    LPWSTR SerialNumberBuffer;
    BOOLEAN IsHsDevice;
    BOOLEAN IsLsDevice;
    BOOLEAN IgnoringHwSerial = FALSE;
    NTSTATUS Status;
    UNICODE_STRING DestinationString;
 
    DPRINT("USBH_CreateDevice: Port - %x, UsbPortStatus - %lX\n",
           Port,
           UsbPortStatus.AsUshort16);
 
    do
    {
        RtlStringCbPrintfW(CharDeviceName,
                           sizeof(CharDeviceName),
                           L"\\Device\\USBPDO-%d",
                           PdoNumber);
 
        RtlInitUnicodeString(&DeviceName, CharDeviceName);
 
        Status = IoCreateDevice(HubExtension->Common.SelfDevice->DriverObject,
                                sizeof(USBHUB_PORT_PDO_EXTENSION),
                                &DeviceName,
                                FILE_DEVICE_USB,
                                0,
                                FALSE,
                                &DeviceObject);
 
        ++PdoNumber;
    }
    while (Status == STATUS_OBJECT_NAME_COLLISION);
 
    if (!NT_SUCCESS(Status))
    {
        ASSERT(Port > 0);
        HubExtension->PortData[Port-1].DeviceObject = DeviceObject;
        return Status;
    }
 
    DeviceObject->StackSize = HubExtension->RootHubPdo2->StackSize;
 
    PortExtension = DeviceObject->DeviceExtension;
 
    DPRINT("USBH_CreateDevice: PortDevice - %p, <%wZ>\n", DeviceObject, &DeviceName);
    DPRINT("USBH_CreateDevice: PortExtension - %p\n", PortExtension);
 
    RtlZeroMemory(PortExtension, sizeof(USBHUB_PORT_PDO_EXTENSION));
 
    PortExtension->Common.ExtensionType = USBH_EXTENSION_TYPE_PORT;
    PortExtension->Common.SelfDevice = DeviceObject;
 
    PortExtension->HubExtension = HubExtension;
    PortExtension->RootHubExtension = HubExtension;
 
    PortExtension->PortNumber = Port;
    PortExtension->CurrentPowerState.DeviceState = PowerDeviceD0;
    PortExtension->IgnoringHwSerial = FALSE;
 
    KeInitializeSpinLock(&PortExtension->PortTimeoutSpinLock);
 
    InitializeListHead(&PortExtension->PortPowerList);
    KeInitializeSpinLock(&PortExtension->PortPowerListSpinLock);
 
    PortExtension->PoRequestCounter = 0;
    PortExtension->PendingSystemPoRequest = 0;
    PortExtension->PendingDevicePoRequest = 0;
    PortExtension->StateBehindD2 = 0;
 
    SerialNumberBuffer = NULL;
 
    IsHsDevice = UsbPortStatus.Usb20PortStatus.HighSpeedDeviceAttached;
    IsLsDevice = UsbPortStatus.Usb20PortStatus.LowSpeedDeviceAttached;
 
    if (IsLsDevice == 0)
    {
        if (IsHsDevice)
        {
            PortExtension->PortPdoFlags = USBHUB_PDO_FLAG_PORT_HIGH_SPEED;
        }
    }
    else
    {
        PortExtension->PortPdoFlags = USBHUB_PDO_FLAG_PORT_LOW_SPEED;
    }
 
    /* Initialize PortExtension->InstanceID */
    RtlInitUnicodeString(&DestinationString, (PCWSTR)&PortExtension->InstanceID);
    DestinationString.MaximumLength = 4 * sizeof(WCHAR);
    Status = RtlIntegerToUnicodeString(Port, 10, &DestinationString);
 
    DeviceObject->Flags |= DO_POWER_PAGABLE;
    DeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
 
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("USBH_CreateDevice: IoCreateDevice() failed - %lX\n", Status);
        goto ErrorExit;
    }
 
    Status = USBD_CreateDeviceEx(HubExtension,
                                 &PortExtension->DeviceHandle,
                                 UsbPortStatus,
                                 Port);
 
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("USBH_CreateDevice: USBD_CreateDeviceEx() failed - %lX\n", Status);
        goto ErrorExit;
    }
 
    Status = USBH_SyncResetPort(HubExtension, Port);
 
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("USBH_CreateDevice: USBH_SyncResetPort() failed - %lX\n", Status);
        goto ErrorExit;
    }
 
    if (IsWait)
    {
        USBH_Wait(50);
    }
 
    Status = USBD_InitializeDeviceEx(HubExtension,
                                     PortExtension->DeviceHandle,
                                     (PUCHAR)&PortExtension->DeviceDescriptor,
                                     sizeof(USB_DEVICE_DESCRIPTOR),
                                     (PUCHAR)&PortExtension->ConfigDescriptor,
                                     sizeof(USB_CONFIGURATION_DESCRIPTOR));
 
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("USBH_CreateDevice: USBD_InitializeDeviceEx() failed - %lX\n", Status);
        PortExtension->DeviceHandle = NULL;
        goto ErrorExit;
    }
 
    DPRINT1("USBH_RegQueryDeviceIgnoreHWSerNumFlag UNIMPLEMENTED. FIXME\n");
    //Status = USBH_RegQueryDeviceIgnoreHWSerNumFlag(PortExtension->DeviceDescriptor.idVendor,
    //                                               PortExtension->DeviceDescriptor.idProduct,
    //                                               &IgnoringHwSerial);
 
    if (TRUE)//Status == STATUS_OBJECT_NAME_NOT_FOUND)
    {
        IgnoringHwSerial = FALSE;
    }
 
    if (IgnoringHwSerial)
    {
        PortExtension->IgnoringHwSerial = TRUE;
    }
 
    if (PortExtension->DeviceDescriptor.iSerialNumber &&
       !PortExtension->IgnoringHwSerial)
    {
        InterlockedExchangePointer((PVOID)&PortExtension->SerialNumber, NULL);
 
        USBH_GetSerialNumberString(PortExtension->Common.SelfDevice,
                                   &SerialNumberBuffer,
                                   &PortExtension->SN_DescriptorLength,
                                   MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
                                   PortExtension->DeviceDescriptor.iSerialNumber);
 
        if (SerialNumberBuffer)
        {
            if (!USBH_ValidateSerialNumberString((PUSHORT)SerialNumberBuffer))
            {
                ExFreePoolWithTag(SerialNumberBuffer, USB_HUB_TAG);
                SerialNumberBuffer = NULL;
            }
 
            if (SerialNumberBuffer &&
                !USBH_CheckDeviceIDUnique(HubExtension,
                                          PortExtension->DeviceDescriptor.idVendor,
                                          PortExtension->DeviceDescriptor.idProduct,
                                          SerialNumberBuffer,
                                          PortExtension->SN_DescriptorLength))
            {
                ExFreePoolWithTag(SerialNumberBuffer, USB_HUB_TAG);
                SerialNumberBuffer = NULL;
            }
        }
 
        InterlockedExchangePointer((PVOID)&PortExtension->SerialNumber,
                                   SerialNumberBuffer);
    }
 
    Status = USBH_ProcessDeviceInformation(PortExtension);
 
    USBH_PdoSetCapabilities(PortExtension);
 
    if (NT_SUCCESS(Status))
    {
        goto Exit;
    }
 
ErrorExit:
 
    PortExtension->PortPdoFlags |= USBHUB_PDO_FLAG_INIT_PORT_FAILED;
 
    DeviceHandle = InterlockedExchangePointer(&PortExtension->DeviceHandle,
                                              NULL);
 
    if (DeviceHandle)
    {
        USBD_RemoveDeviceEx(HubExtension, DeviceHandle, 0);
    }
 
    SerialNumberBuffer = InterlockedExchangePointer((PVOID)&PortExtension->SerialNumber,
                                                     NULL);
 
    if (SerialNumberBuffer)
    {
        ExFreePoolWithTag(SerialNumberBuffer, USB_HUB_TAG);
    }
 
Exit:
 
    ASSERT(Port > 0);
    HubExtension->PortData[Port-1].DeviceObject = DeviceObject;
    return Status;
}

Referenced by USBH_FdoQueryBusRelations().

USBH_DriverUnload()

VOID NTAPI USBH_DriverUnload

(

IN PDRIVER_OBJECT

DriverObject

)

Definition at line 5021 of file usbhub.c.

{
    DPRINT("USBH_DriverUnload: UNIMPLEMENTED\n");
 
    if (GenericUSBDeviceString)
    {
        ExFreePool(GenericUSBDeviceString);
        GenericUSBDeviceString = NULL;
    }
}

Referenced by DriverEntry().

USBH_EnableParentPort()

NTSTATUS NTAPI USBH_EnableParentPort

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 2032 of file usbhub.c.

{
    PIRP Irp;
    NTSTATUS Status;
    KEVENT Event;
    IO_STATUS_BLOCK IoStatusBlock;
 
    DPRINT("USBH_EnableParentPort ... \n");
 
    KeInitializeEvent(&Event, NotificationEvent, FALSE);
 
    Irp = IoBuildDeviceIoControlRequest(IOCTL_INTERNAL_USB_ENABLE_PORT,
                                        HubExtension->LowerDevice,
                                        NULL,
                                        0,
                                        NULL,
                                        0,
                                        TRUE,
                                        &Event,
                                        &IoStatusBlock);
 
    if (!Irp)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    Status = IoCallDriver(HubExtension->LowerDevice, Irp);
 
    if (Status == STATUS_PENDING)
    {
        KeWaitForSingleObject(&Event,
                              Suspended,
                              KernelMode,
                              FALSE,
                              NULL);
    }
    else
    {
        IoStatusBlock.Status = Status;
    }
 
    return IoStatusBlock.Status;
}

Referenced by USBH_ResetHub().

USBH_FdoDispatch()

NTSTATUS NTAPI USBH_FdoDispatch	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PIRP	Irp
	)

Definition at line 4896 of file usbhub.c.

{
    PIO_STACK_LOCATION IoStack;
    UCHAR MajorFunction;
    NTSTATUS Status;
 
    IoStack = IoGetCurrentIrpStackLocation(Irp);
 
    DPRINT("USBH_FdoDispatch: HubExtension - %p, Irp - %p, MajorFunction - %X\n",
           HubExtension,
           Irp,
           IoStack->MajorFunction);
 
    MajorFunction = IoStack->MajorFunction;
 
    switch (MajorFunction)
    {
        case IRP_MJ_CREATE:
        case IRP_MJ_CLOSE:
            Status = STATUS_SUCCESS;
            USBH_CompleteIrp(Irp, Status);
            break;
 
        case IRP_MJ_DEVICE_CONTROL:
            Status = USBH_DeviceControl(HubExtension, Irp);
            break;
 
        case IRP_MJ_PNP:
            Status = USBH_FdoPnP(HubExtension, Irp, IoStack->MinorFunction);
            break;
 
        case IRP_MJ_POWER:
            Status = USBH_FdoPower(HubExtension, Irp, IoStack->MinorFunction);
            break;
 
        case IRP_MJ_SYSTEM_CONTROL:
            DPRINT1("USBH_FdoDispatch: USBH_SystemControl() UNIMPLEMENTED. FIXME\n");
            /* fall through */
 
        case IRP_MJ_INTERNAL_DEVICE_CONTROL:
        default:
            Status = USBH_PassIrp(HubExtension->LowerDevice, Irp);
            break;
    }
 
    return Status;
}

Referenced by USBH_HubDispatch().

USBH_FdoIdleNotificationCallback()

VOID NTAPI USBH_FdoIdleNotificationCallback

(

IN PVOID

Context

)

Definition at line 3365 of file usbhub.c.

{
    PUSBHUB_FDO_EXTENSION HubExtension;
    PUSBHUB_PORT_DATA PortData;
    PDEVICE_OBJECT PortDevice;
    PUSBHUB_PORT_PDO_EXTENSION PortExtension;
    PIRP Irp = NULL;
    PIRP IdleIrp;
    POWER_STATE PowerState;
    KEVENT Event;
    ULONG Port;
    PIO_STACK_LOCATION IoStack;
    PUSB_IDLE_CALLBACK_INFO CallbackInfo;
    BOOLEAN IsReady;
    KIRQL OldIrql;
    NTSTATUS Status;
 
    HubExtension = Context;
 
    DPRINT("USBH_FdoIdleNotificationCallback: HubExtension - %p, HubFlags - %lX\n",
           HubExtension,
           HubExtension->HubFlags);
 
    if (HubExtension->HubFlags & (USBHUB_FDO_FLAG_ENUM_POST_RECOVER |
                                  USBHUB_FDO_FLAG_WAKEUP_START |
                                  USBHUB_FDO_FLAG_DEVICE_REMOVED |
                                  USBHUB_FDO_FLAG_STATE_CHANGING |
                                  USBHUB_FDO_FLAG_ESD_RECOVERING |
                                  USBHUB_FDO_FLAG_DEVICE_FAILED |
                                  USBHUB_FDO_FLAG_DEVICE_STOPPING))
    {
        DbgBreakPoint();
        return;
    }
 
    HubExtension->HubFlags |= USBHUB_FDO_FLAG_GOING_IDLE;
 
    if (!(HubExtension->HubFlags & USBHUB_FDO_FLAG_PENDING_WAKE_IRP))
    {
        Status = USBH_FdoSubmitWaitWakeIrp(HubExtension);
 
        if (Status != STATUS_PENDING)
        {
            DPRINT("Status != STATUS_PENDING. DbgBreakPoint()\n");
            DbgBreakPoint();
            HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_GOING_IDLE;
            return;
        }
    }
 
    InterlockedIncrement(&HubExtension->PendingRequestCount);
 
    KeWaitForSingleObject(&HubExtension->ResetDeviceSemaphore,
                          Executive,
                          KernelMode,
                          FALSE,
                          NULL);
 
    PortData = HubExtension->PortData;
    IsReady = TRUE;
 
    for (Port = 0;
         Port < HubExtension->HubDescriptor->bNumberOfPorts;
         Port++)
    {
        PortDevice = PortData[Port].DeviceObject;
 
        if (PortDevice)
        {
            PortExtension = PortDevice->DeviceExtension;
 
            IdleIrp = PortExtension->IdleNotificationIrp;
 
            if (!IdleIrp)
            {
                IsReady = FALSE;
                goto IdleHub;
            }
 
            IoStack = IoGetCurrentIrpStackLocation(IdleIrp);
 
            CallbackInfo = IoStack->Parameters.DeviceIoControl.Type3InputBuffer;
 
            if (!CallbackInfo)
            {
                IsReady = FALSE;
                goto IdleHub;
            }
 
            if (!CallbackInfo->IdleCallback)
            {
                IsReady = FALSE;
                goto IdleHub;
            }
 
            if (PortExtension->PendingSystemPoRequest)
            {
                IsReady = FALSE;
                goto IdleHub;
            }
 
            if (InterlockedCompareExchange(&PortExtension->StateBehindD2,
                                           1,
                                           0))
            {
                IsReady = FALSE;
                goto IdleHub;
            }
 
            DPRINT("USBH_FdoIdleNotificationCallback: IdleContext - %p\n",
                   CallbackInfo->IdleContext);
 
            CallbackInfo->IdleCallback(CallbackInfo->IdleContext);
 
            if (PortExtension->CurrentPowerState.DeviceState == PowerDeviceD0)
            {
                IsReady = FALSE;
                goto IdleHub;
            }
        }
    }
 
    if (!(HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_STOPPING) &&
        (USBH_CheckIdleAbort(HubExtension, FALSE, FALSE) == TRUE))
    {
        IsReady = FALSE;
    }
 
IdleHub:
 
    KeReleaseSemaphore(&HubExtension->ResetDeviceSemaphore,
                       LOW_REALTIME_PRIORITY,
                       1,
                       FALSE);
 
    if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
    {
        KeSetEvent(&HubExtension->PendingRequestEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
 
    if (!IsReady ||
        (HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_SUSPENDED))
    {
        DPRINT1("USBH_FdoIdleNotificationCallback: HubFlags - %lX\n",
                HubExtension->HubFlags);
 
        HubExtension->HubFlags &= ~(USBHUB_FDO_FLAG_DEVICE_SUSPENDED |
                                    USBHUB_FDO_FLAG_GOING_IDLE);
 
        /* Aborting Idle for Hub */
        IoAcquireCancelSpinLock(&OldIrql);
 
        if (HubExtension->PendingIdleIrp)
        {
            Irp = HubExtension->PendingIdleIrp;
            HubExtension->PendingIdleIrp = NULL;
        }
 
        IoReleaseCancelSpinLock(OldIrql);
 
        if (Irp)
        {
            USBH_HubCancelIdleIrp(HubExtension, Irp);
        }
 
        DbgBreakPoint();
        USBH_HubCompletePortIdleIrps(HubExtension, STATUS_CANCELLED);
    }
    else
    {
        PowerState.DeviceState = HubExtension->DeviceWake;
 
        KeWaitForSingleObject(&HubExtension->IdleSemaphore,
                              Executive,
                              KernelMode,
                              FALSE,
                              NULL);
 
        HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_GOING_IDLE;
        HubExtension->HubFlags |= USBHUB_FDO_FLAG_DO_SUSPENSE;
 
        KeInitializeEvent(&Event, NotificationEvent, FALSE);
 
        DPRINT("USBH_FdoIdleNotificationCallback: LowerPdo - %p\n",
                HubExtension->LowerPDO);
 
        DPRINT("USBH_FdoIdleNotificationCallback: PowerState.DeviceState - %x\n",
               PowerState.DeviceState);
 
        Status = PoRequestPowerIrp(HubExtension->LowerPDO,
                                   IRP_MN_SET_POWER,
                                   PowerState,
                                   USBH_HubSetDWakeCompletion,
                                   &Event,
                                   NULL);
 
        if (Status == STATUS_PENDING)
        {
            KeWaitForSingleObject(&Event,
                                  Executive,
                                  KernelMode,
                                  FALSE,
                                  NULL);
        }
    }
}

Referenced by USBH_FdoSubmitIdleRequestIrp().

USBH_FdoIdleNotificationRequestComplete()

NTSTATUS NTAPI USBH_FdoIdleNotificationRequestComplete	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp,
		IN PVOID	Context
	)

Definition at line 3629 of file usbhub.c.

{
    PUSBHUB_FDO_EXTENSION HubExtension;
    NTSTATUS NtStatus;
    PVOID IdleIrp;
    KIRQL Irql;
    NTSTATUS Status;
    PUSBHUB_IO_WORK_ITEM HubIoWorkItem;
 
    IoAcquireCancelSpinLock(&Irql);
 
    HubExtension = Context;
    HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_WAIT_IDLE_REQUEST;
 
    IdleIrp = InterlockedExchangePointer((PVOID)&HubExtension->PendingIdleIrp,
                                         NULL);
 
    DPRINT("USBH_FdoIdleNotificationRequestComplete: IdleIrp - %p\n", IdleIrp);
 
    if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
    {
        KeSetEvent(&HubExtension->PendingRequestEvent, EVENT_INCREMENT, FALSE);
    }
 
    IoReleaseCancelSpinLock(Irql);
 
    NtStatus = Irp->IoStatus.Status;
 
    DPRINT("USBH_FdoIdleNotificationRequestComplete: NtStatus - %lX\n",
           NtStatus);
 
    if (!NT_SUCCESS(NtStatus) &&
        NtStatus != STATUS_POWER_STATE_INVALID &&
        !(HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_REMOVED) &&
        !(HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_STOPPED))
    {
        DPRINT("USBH_FdoIdleNotificationRequestComplete: DeviceState - %x\n",
               HubExtension->CurrentPowerState.DeviceState);
 
        if (HubExtension->CurrentPowerState.DeviceState == PowerDeviceD0)
        {
            PUSBHUB_IDLE_PORT_CONTEXT HubWorkItemBuffer;
 
            Status = USBH_AllocateWorkItem(HubExtension,
                                           &HubIoWorkItem,
                                           USBH_CompletePortIdleIrpsWorker,
                                           sizeof(USBHUB_IDLE_PORT_CONTEXT),
                                           (PVOID *)&HubWorkItemBuffer,
                                           DelayedWorkQueue);
 
            if (NT_SUCCESS(Status))
            {
                HubWorkItemBuffer->Status = NtStatus;
 
                USBH_HubQueuePortIdleIrps(HubExtension,
                                          &HubWorkItemBuffer->PwrList);
 
                USBH_QueueWorkItem(HubExtension, HubIoWorkItem);
            }
        }
        else
        {
            PUSBHUB_IDLE_HUB_CONTEXT HubWorkItemBuffer;
 
            Status = USBH_AllocateWorkItem(HubExtension,
                                           &HubIoWorkItem,
                                           USBH_IdleCompletePowerHubWorker,
                                           sizeof(USBHUB_IDLE_HUB_CONTEXT),
                                           (PVOID *)&HubWorkItemBuffer,
                                           DelayedWorkQueue);
 
            if (NT_SUCCESS(Status))
            {
                HubWorkItemBuffer->Status = NtStatus;
                USBH_QueueWorkItem(HubExtension, HubIoWorkItem);
            }
        }
    }
 
    if (IdleIrp ||
        InterlockedExchange((PLONG)&HubExtension->IdleRequestLock, 1))
    {
        DPRINT("USBH_FdoIdleNotificationRequestComplete: Irp - %p\n", Irp);
        IoFreeIrp(Irp);
    }
 
    return STATUS_MORE_PROCESSING_REQUIRED;
}

Referenced by USBH_FdoSubmitIdleRequestIrp().

USBH_FdoSubmitIdleRequestIrp()

NTSTATUS NTAPI USBH_FdoSubmitIdleRequestIrp

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 3722 of file usbhub.c.

{
    NTSTATUS Status;
    ULONG HubFlags;
    PDEVICE_OBJECT LowerPDO;
    PIRP Irp;
    PIO_STACK_LOCATION IoStack;
    KIRQL Irql;
 
    DPRINT("USBH_FdoSubmitIdleRequestIrp: HubExtension - %p, PendingIdleIrp - %p\n",
           HubExtension,
           HubExtension->PendingIdleIrp);
 
    if (HubExtension->PendingIdleIrp)
    {
        Status = STATUS_DEVICE_BUSY;
        KeSetEvent(&HubExtension->IdleEvent, EVENT_INCREMENT, FALSE);
        return Status;
    }
 
    HubFlags = HubExtension->HubFlags;
 
    if (HubFlags & USBHUB_FDO_FLAG_DEVICE_STOPPING ||
        HubFlags & USBHUB_FDO_FLAG_DEVICE_REMOVED)
    {
        HubExtension->HubFlags = HubFlags & ~USBHUB_FDO_FLAG_WAIT_IDLE_REQUEST;
        KeSetEvent(&HubExtension->IdleEvent, EVENT_INCREMENT, FALSE);
        return STATUS_DEVICE_REMOVED;
    }
 
    LowerPDO = HubExtension->LowerPDO;
 
    HubExtension->IdleCallbackInfo.IdleCallback = USBH_FdoIdleNotificationCallback;
    HubExtension->IdleCallbackInfo.IdleContext = HubExtension;
 
    Irp = IoAllocateIrp(LowerPDO->StackSize, FALSE);
 
    if (!Irp)
    {
        HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_WAIT_IDLE_REQUEST;
        Status = STATUS_INSUFFICIENT_RESOURCES;
 
        KeSetEvent(&HubExtension->IdleEvent, EVENT_INCREMENT, FALSE);
        return Status;
    }
 
    IoStack = IoGetNextIrpStackLocation(Irp);
 
    IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
 
    IoStack->Parameters.DeviceIoControl.InputBufferLength = sizeof(USB_IDLE_CALLBACK_INFO);
    IoStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_INTERNAL_USB_SUBMIT_IDLE_NOTIFICATION;
    IoStack->Parameters.DeviceIoControl.Type3InputBuffer = &HubExtension->IdleCallbackInfo;
 
    IoSetCompletionRoutine(Irp,
                           USBH_FdoIdleNotificationRequestComplete,
                           HubExtension,
                           TRUE,
                           TRUE,
                           TRUE);
 
    InterlockedIncrement(&HubExtension->PendingRequestCount);
    InterlockedExchange(&HubExtension->IdleRequestLock, 0);
 
    HubExtension->HubFlags &= ~(USBHUB_FDO_FLAG_DEVICE_SUSPENDED |
                                USBHUB_FDO_FLAG_GOING_IDLE);
 
    Status = IoCallDriver(HubExtension->LowerPDO, Irp);
 
    IoAcquireCancelSpinLock(&Irql);
 
    if (Status == STATUS_PENDING &&
        HubExtension->HubFlags & USBHUB_FDO_FLAG_WAIT_IDLE_REQUEST)
    {
        HubExtension->PendingIdleIrp = Irp;
    }
 
    IoReleaseCancelSpinLock(Irql);
 
    KeSetEvent(&HubExtension->IdleEvent, EVENT_INCREMENT, FALSE);
 
    return Status;
}

Referenced by USBH_CheckHubIdle().

USBH_FdoSubmitWaitWakeIrp()

NTSTATUS NTAPI USBH_FdoSubmitWaitWakeIrp

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 3313 of file usbhub.c.

{
    POWER_STATE PowerState;
    NTSTATUS Status;
    PIRP Irp = NULL;
    KIRQL Irql;
 
    DPRINT("USBH_FdoSubmitWaitWakeIrp: ... \n");
 
    PowerState.SystemState = HubExtension->SystemWake;
    HubExtension->HubFlags |= USBHUB_FDO_FLAG_PENDING_WAKE_IRP;
 
    InterlockedIncrement(&HubExtension->PendingRequestCount);
    InterlockedExchange(&HubExtension->FdoWaitWakeLock, 0);
 
    Status = PoRequestPowerIrp(HubExtension->LowerPDO,
                               IRP_MN_WAIT_WAKE,
                               PowerState,
                               USBH_FdoWaitWakeIrpCompletion,
                               HubExtension,
                               &Irp);
 
    IoAcquireCancelSpinLock(&Irql);
 
    if (Status == STATUS_PENDING)
    {
        if (HubExtension->HubFlags & USBHUB_FDO_FLAG_PENDING_WAKE_IRP)
        {
            HubExtension->PendingWakeIrp = Irp;
            DPRINT("USBH_FdoSubmitWaitWakeIrp: PendingWakeIrp - %p\n",
                   HubExtension->PendingWakeIrp);
        }
    }
    else
    {
        HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_PENDING_WAKE_IRP;
 
        if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
        {
            KeSetEvent(&HubExtension->PendingRequestEvent,
                       EVENT_INCREMENT,
                       FALSE);
        }
    }
 
    IoReleaseCancelSpinLock(Irql);
 
    return Status;
}

Referenced by USBH_FdoIdleNotificationCallback().

USBH_FdoSyncSubmitUrb()

NTSTATUS NTAPI USBH_FdoSyncSubmitUrb	(	IN PDEVICE_OBJECT	FdoDevice,
		IN PURB	Urb
	)

Definition at line 355 of file usbhub.c.

{
    PUSBHUB_FDO_EXTENSION HubExtension;
 
    DPRINT("USBH_FdoSyncSubmitUrb: FdoDevice - %p, Urb - %p\n",
           FdoDevice,
           Urb);
 
    HubExtension = FdoDevice->DeviceExtension;
    return USBH_SyncSubmitUrb(HubExtension->LowerDevice, Urb);
}

Referenced by USBH_AbortInterruptPipe(), USBH_GetDeviceDescriptor(), USBH_OpenConfiguration(), USBH_ResetInterruptPipe(), USBH_SyncGetDeviceConfigurationDescriptor(), USBH_SyncGetStatus(), and USBH_Transact().

USBH_FdoWaitWakeIrpCompletion()

VOID NTAPI USBH_FdoWaitWakeIrpCompletion	(	IN PDEVICE_OBJECT	DeviceObject,
		IN UCHAR	MinorFunction,
		IN POWER_STATE	PowerState,
		IN PVOID	Context,
		IN PIO_STATUS_BLOCK	IoStatus
	)

Definition at line 3302 of file usbhub.c.

{
    DPRINT("USBH_FdoWaitWakeIrpCompletion ... \n");
}

Referenced by USBH_FdoSubmitWaitWakeIrp().

USBH_FlushPortPwrList()

VOID NTAPI USBH_FlushPortPwrList

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 3125 of file usbhub.c.

{
    PDEVICE_OBJECT PortDevice;
    PUSBHUB_PORT_PDO_EXTENSION PortExtension;
    PLIST_ENTRY Entry;
    ULONG Port;
 
    DPRINT("USBH_FlushPortPwrList ... \n");
 
    InterlockedIncrement((PLONG)&HubExtension->PendingRequestCount);
 
    KeWaitForSingleObject(&HubExtension->ResetDeviceSemaphore,
                          Executive,
                          KernelMode,
                          FALSE,
                          NULL);
 
    for (Port = 0; Port < HubExtension->HubDescriptor->bNumberOfPorts; ++Port)
    {
        PortDevice = HubExtension->PortData[Port].DeviceObject;
 
        if (!PortDevice)
        {
            continue;
        }
 
        PortExtension = PortDevice->DeviceExtension;
 
        InterlockedExchange((PLONG)&PortExtension->StateBehindD2, 0);
 
        while (TRUE)
        {
            Entry = ExInterlockedRemoveHeadList(&PortExtension->PortPowerList,
                                                &PortExtension->PortPowerListSpinLock);
 
            if (!Entry)
            {
                break;
            }
 
            DPRINT1("USBH_FlushPortPwrList: PortPowerList FIXME\n");
            DbgBreakPoint();
        }
    }
 
    KeReleaseSemaphore(&HubExtension->ResetDeviceSemaphore,
                       LOW_REALTIME_PRIORITY,
                       1,
                       FALSE);
 
    if (!InterlockedDecrement((PLONG)&HubExtension->PendingRequestCount))
    {
        KeSetEvent(&HubExtension->PendingRequestEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
}

Referenced by USBH_CompletePortIdleIrpsWorker(), and USBH_HubCompletePortIdleIrps().

USBH_FreeWorkItem()

VOID NTAPI USBH_FreeWorkItem

(

IN PUSBHUB_IO_WORK_ITEM

HubIoWorkItem

)

Definition at line 2937 of file usbhub.c.

{
    PIO_WORKITEM WorkItem;
 
    DPRINT("USBH_FreeWorkItem: ... \n");
 
    WorkItem = HubIoWorkItem->HubWorkItem;
 
    if (HubIoWorkItem->HubWorkItemBuffer)
    {
        ExFreePoolWithTag(HubIoWorkItem->HubWorkItemBuffer, USB_HUB_TAG);
    }
 
    ExFreePoolWithTag(HubIoWorkItem, USB_HUB_TAG);
 
    IoFreeWorkItem(WorkItem);
}

Referenced by USBH_ChangeIndicationProcessChange().

USBH_GetConfigurationDescriptor()

NTSTATUS NTAPI USBH_GetConfigurationDescriptor	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PUSB_CONFIGURATION_DESCRIPTOR *	OutDescriptor
	)

Definition at line 974 of file usbhub.c.

{
    PUSB_CONFIGURATION_DESCRIPTOR ConfigDescriptor;
    ULONG ReturnedLen;
    SIZE_T DescriptorLen;
    NTSTATUS Status;
 
    DPRINT("USBH_GetConfigurationDescriptor: ... \n");
 
    DescriptorLen = MAXUCHAR;
 
    while (TRUE)
    {
        ConfigDescriptor = ExAllocatePoolWithTag(NonPagedPool,
                                                 DescriptorLen,
                                                 USB_HUB_TAG);
 
        if (!ConfigDescriptor)
        {
            Status = STATUS_INSUFFICIENT_RESOURCES;
            break;
        }
 
        Status = USBH_SyncGetDeviceConfigurationDescriptor(DeviceObject,
                                                           ConfigDescriptor,
                                                           DescriptorLen,
                                                           &ReturnedLen);
 
        if (ReturnedLen < sizeof(USB_CONFIGURATION_DESCRIPTOR))
        {
            Status = STATUS_DEVICE_DATA_ERROR;
        }
 
        if (!NT_SUCCESS(Status))
        {
            break;
        }
 
        *OutDescriptor = ConfigDescriptor;
 
        if (ConfigDescriptor->wTotalLength <= DescriptorLen)
        {
            break;
        }
 
        DescriptorLen = ConfigDescriptor->wTotalLength;
 
        ExFreePool(ConfigDescriptor);
        *OutDescriptor = NULL;
    }
 
    if (NT_SUCCESS(Status))
    {
        if (ReturnedLen < ConfigDescriptor->wTotalLength)
        {
            Status = STATUS_DEVICE_DATA_ERROR;
        }
    }
    else
    {
        if (ConfigDescriptor)
        {
            ExFreePool(ConfigDescriptor);
        }
 
        *OutDescriptor = NULL;
    }
 
    return Status;
}

Referenced by USBH_ProcessDeviceInformation(), and USBH_StartHubFdoDevice().

USBH_GetConfigValue()

NTSTATUS NTAPI USBH_GetConfigValue	(	IN PWSTR	ValueName,
		IN ULONG	ValueType,
		IN PVOID	ValueData,
		IN ULONG	ValueLength,
		IN PVOID	Context,
		IN PVOID	EntryContext
	)

Definition at line 34 of file usbhub.c.

{
    NTSTATUS Status = STATUS_SUCCESS;
 
    DPRINT("USBHUB_GetConfigValue: ... \n");
 
    if (ValueType == REG_BINARY)
    {
        *(PUCHAR)EntryContext = *(PUCHAR)ValueData;
    }
    else if (ValueType == REG_DWORD)
    {
        *(PULONG)EntryContext = *(PULONG)ValueData;
    }
    else
    {
        Status = STATUS_INVALID_PARAMETER;
    }
 
    return Status;
}

Referenced by USBH_RegQueryGenericUSBDeviceString().

USBH_GetDeviceDescriptor()

NTSTATUS NTAPI USBH_GetDeviceDescriptor	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PUSB_DEVICE_DESCRIPTOR	HubDeviceDescriptor
	)

Definition at line 877 of file usbhub.c.

{
    struct _URB_CONTROL_DESCRIPTOR_REQUEST * Urb;
    NTSTATUS Status;
 
    DPRINT("USBH_GetDeviceDescriptor: ... \n");
 
    Urb = ExAllocatePoolWithTag(NonPagedPool,
                                sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST),
                                USB_HUB_TAG);
 
    if (!Urb)
    {
        DPRINT1("USBH_SyncGetDeviceHandle: Urb - NULL!\n");
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    RtlZeroMemory(Urb, sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST));
 
    Urb->Hdr.Function = URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE;
    Urb->Hdr.Length = sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST);
 
    Urb->TransferBufferLength = sizeof(USB_DEVICE_DESCRIPTOR);
    Urb->TransferBuffer = HubDeviceDescriptor;
    Urb->DescriptorType = USB_DEVICE_DESCRIPTOR_TYPE;
 
    Status = USBH_FdoSyncSubmitUrb(DeviceObject, (PURB)Urb);
 
    ExFreePoolWithTag(Urb, USB_HUB_TAG);
 
    return Status;
}

Referenced by USBH_StartHubFdoDevice().

USBH_GetDeviceType()

NTSTATUS NTAPI USBH_GetDeviceType	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PUSB_DEVICE_HANDLE	DeviceHandle,
		OUT USB_DEVICE_TYPE *	OutDeviceType
	)

Definition at line 608 of file usbhub.c.

{
    PUSB_BUSIFFN_GET_DEVICE_INFORMATION QueryDeviceInformation;
    PUSB_DEVICE_INFORMATION_0 DeviceInfo;
    SIZE_T DeviceInformationBufferLength;
    USB_DEVICE_TYPE DeviceType = Usb11Device;
    ULONG dummy;
    NTSTATUS Status;
 
    DPRINT("USBH_GetDeviceType: ... \n");
 
    QueryDeviceInformation = HubExtension->BusInterface.QueryDeviceInformation;
 
    if (!QueryDeviceInformation)
    {
        DPRINT1("USBH_GetDeviceType: no QueryDeviceInformation()\n");
        return STATUS_NOT_IMPLEMENTED;
    }
 
    DeviceInformationBufferLength = sizeof(USB_DEVICE_INFORMATION_0);
 
    while (TRUE)
    {
        DeviceInfo = ExAllocatePoolWithTag(PagedPool,
                                           DeviceInformationBufferLength,
                                           USB_HUB_TAG);
 
        if (!DeviceInfo)
        {
            DPRINT1("USBH_GetDeviceType: ExAllocatePoolWithTag() failed\n");
            Status = STATUS_INSUFFICIENT_RESOURCES;
            break;
        }
 
        RtlZeroMemory(DeviceInfo, DeviceInformationBufferLength);
 
        DeviceInfo->InformationLevel = 0;
 
        Status = QueryDeviceInformation(HubExtension->BusInterface.BusContext,
                                        DeviceHandle,
                                        DeviceInfo,
                                        DeviceInformationBufferLength,
                                        &dummy);
 
        if (Status != STATUS_BUFFER_TOO_SMALL)
        {
            if (NT_SUCCESS(Status))
            {
                DeviceType = DeviceInfo->DeviceType;
            }
 
            ExFreePoolWithTag(DeviceInfo, USB_HUB_TAG);
            break;
        }
 
        DeviceInformationBufferLength = DeviceInfo->ActualLength;
        ExFreePoolWithTag(DeviceInfo, USB_HUB_TAG);
    }
 
    if (OutDeviceType)
    {
        *OutDeviceType = DeviceType;
        DPRINT("USBH_GetDeviceType: DeviceType - %x\n", DeviceType);
    }
 
    return Status;
}

Referenced by USBH_StartHubFdoDevice().

USBH_GetPortStatus()

NTSTATUS NTAPI USBH_GetPortStatus	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PULONG	PortStatus
	)

Definition at line 1979 of file usbhub.c.

{
    PIRP Irp;
    PIO_STACK_LOCATION IoStack;
    NTSTATUS Status;
    KEVENT Event;
    IO_STATUS_BLOCK IoStatusBlock;
 
    DPRINT("USBH_GetPortStatus ... \n");
 
    *PortStatus = 0;
 
    KeInitializeEvent(&Event, NotificationEvent, FALSE);
 
    Irp = IoBuildDeviceIoControlRequest(IOCTL_INTERNAL_USB_GET_PORT_STATUS,
                                        HubExtension->LowerDevice,
                                        NULL,
                                        0,
                                        NULL,
                                        0,
                                        TRUE,
                                        &Event,
                                        &IoStatusBlock);
 
    if (!Irp)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    IoStack = IoGetNextIrpStackLocation(Irp);
    IoStack->Parameters.Others.Argument1 = PortStatus;
 
    Status = IoCallDriver(HubExtension->LowerDevice, Irp);
 
    if (Status == STATUS_PENDING)
    {
        KeWaitForSingleObject(&Event,
                              Suspended,
                              KernelMode,
                              FALSE,
                              NULL);
    }
    else
    {
        IoStatusBlock.Status = Status;
    }
 
    return IoStatusBlock.Status;
}

Referenced by USBH_ResetHub().

USBH_GetRootHubExtension()

PUSBHUB_FDO_EXTENSION NTAPI USBH_GetRootHubExtension

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 699 of file usbhub.c.

{
    PDEVICE_OBJECT Device;
    PUSBHUB_FDO_EXTENSION RootHubExtension;
 
    DPRINT("USBH_GetRootHubExtension: HubExtension - %p\n", HubExtension);
 
    RootHubExtension = HubExtension;
 
    if (HubExtension->LowerPDO != HubExtension->RootHubPdo)
    {
        Device = HubExtension->RootHubPdo;
 
        do
        {
            Device = Device->AttachedDevice;
        }
        while (Device->DriverObject != HubExtension->Common.SelfDevice->DriverObject);
 
        RootHubExtension = Device->DeviceExtension;
    }
 
    DPRINT("USBH_GetRootHubExtension: RootHubExtension - %p\n", RootHubExtension);
 
    return RootHubExtension;
}

Referenced by USBH_CheckHubIdle(), USBH_FdoPower(), and USBH_HubSetD0().

USBH_GetSerialNumberString()

NTSTATUS NTAPI USBH_GetSerialNumberString	(	IN PDEVICE_OBJECT	DeviceObject,
		IN LPWSTR *	OutSerialNumber,
		IN PUSHORT	OutDescriptorLength,
		IN USHORT	LanguageId,
		IN UCHAR	Index
	)

Definition at line 4304 of file usbhub.c.

{
    PUSB_STRING_DESCRIPTOR Descriptor;
    NTSTATUS Status;
    LPWSTR SerialNumberBuffer = NULL;
    UCHAR StringLength;
    UCHAR Length;
 
    DPRINT("USBH_GetSerialNumberString: ... \n");
 
    *OutSerialNumber = NULL;
    *OutDescriptorLength = 0;
 
    Descriptor = ExAllocatePoolWithTag(NonPagedPool,
                                       MAXIMUM_USB_STRING_LENGTH,
                                       USB_HUB_TAG);
 
    if (!Descriptor)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    RtlZeroMemory(Descriptor, MAXIMUM_USB_STRING_LENGTH);
 
    Status = USBH_CheckDeviceLanguage(DeviceObject, LanguageId);
 
    if (!NT_SUCCESS(Status))
    {
        goto Exit;
    }
 
    Status = USBH_SyncGetStringDescriptor(DeviceObject,
                                          Index,
                                          LanguageId,
                                          Descriptor,
                                          MAXIMUM_USB_STRING_LENGTH,
                                          NULL,
                                          TRUE);
 
    if (!NT_SUCCESS(Status) ||
        Descriptor->bLength <= sizeof(USB_COMMON_DESCRIPTOR))
    {
        Status = STATUS_INSUFFICIENT_RESOURCES;
        goto Exit;
    }
 
    StringLength = Descriptor->bLength -
                   FIELD_OFFSET(USB_STRING_DESCRIPTOR, bString);
 
    Length = StringLength + sizeof(UNICODE_NULL);
 
    SerialNumberBuffer = ExAllocatePoolWithTag(PagedPool, Length, USB_HUB_TAG);
 
    if (!SerialNumberBuffer)
    {
        goto Exit;
    }
 
    RtlZeroMemory(SerialNumberBuffer, Length);
    RtlCopyMemory(SerialNumberBuffer, Descriptor->bString, StringLength);
 
    *OutSerialNumber = SerialNumberBuffer;
    *OutDescriptorLength = Length;
 
Exit:
    ExFreePoolWithTag(Descriptor, USB_HUB_TAG);
    return Status;
}

Referenced by USBH_CreateDevice().

USBH_HubCancelIdleIrp()

VOID NTAPI USBH_HubCancelIdleIrp	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PIRP	IdleIrp
	)

Definition at line 3206 of file usbhub.c.

{
    DPRINT("USBH_HubCancelIdleIrp ... \n");
 
    IoCancelIrp(IdleIrp);
 
    if (InterlockedExchange(&HubExtension->IdleRequestLock, 1))
    {
        IoFreeIrp(IdleIrp);
    }
}

Referenced by USBH_FdoCleanup(), USBH_FdoIdleNotificationCallback(), USBH_HubQueuePortIdleIrps(), and USBH_PortIdleNotificationCancelRoutine().

USBH_HubCompletePortIdleIrps()

VOID NTAPI USBH_HubCompletePortIdleIrps	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN NTSTATUS	NtStatus
	)

Definition at line 3185 of file usbhub.c.

{
    LIST_ENTRY IdleList;
 
    DPRINT("USBH_HubCompletePortIdleIrps ... \n");
 
    if (HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_STARTED)
    {
        USBH_HubQueuePortIdleIrps(HubExtension, &IdleList);
 
        USBH_HubCompleteQueuedPortIdleIrps(HubExtension,
                                           &IdleList,
                                           NtStatus);
 
        USBH_FlushPortPwrList(HubExtension);
    }
}

Referenced by USBH_FdoIdleNotificationCallback(), and USBH_IdleCompletePowerHubWorker().

USBH_HubCompleteQueuedPortIdleIrps()

VOID NTAPI USBH_HubCompleteQueuedPortIdleIrps	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PLIST_ENTRY	IdleList,
		IN NTSTATUS	NtStatus
	)

Definition at line 3110 of file usbhub.c.

{
    DPRINT("USBH_HubCompleteQueuedPortIdleIrps ... \n");
 
    while (!IsListEmpty(IdleList))
    {
        DPRINT1("USBH_HubCompleteQueuedPortIdleIrps: IdleList not Empty. FIXME\n");
        DbgBreakPoint();
    }
}

Referenced by USBH_CompletePortIdleIrpsWorker(), and USBH_HubCompletePortIdleIrps().

USBH_HubDispatch()

NTSTATUS NTAPI USBH_HubDispatch	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp
	)

Definition at line 5034 of file usbhub.c.

{
    PCOMMON_DEVICE_EXTENSION DeviceExtension;
    ULONG ExtensionType;
    NTSTATUS Status;
 
 
    DeviceExtension = DeviceObject->DeviceExtension;
    ExtensionType = DeviceExtension->ExtensionType;
 
    if (ExtensionType == USBH_EXTENSION_TYPE_HUB)
    {
        DPRINT("USBH_HubDispatch: DeviceObject - %p, Irp - %p\n",
               DeviceObject,
               Irp);
 
        Status = USBH_FdoDispatch((PUSBHUB_FDO_EXTENSION)DeviceExtension, Irp);
    }
    else if (ExtensionType == USBH_EXTENSION_TYPE_PORT)
    {
        PIO_STACK_LOCATION IoStack = IoGetCurrentIrpStackLocation(Irp);
        UCHAR MajorFunction = IoStack->MajorFunction;
        BOOLEAN IsDprint = TRUE;
 
        if (MajorFunction == IRP_MJ_INTERNAL_DEVICE_CONTROL)
        {
            ULONG ControlCode = IoStack->Parameters.DeviceIoControl.IoControlCode;
 
            if (ControlCode == IOCTL_INTERNAL_USB_SUBMIT_URB)
            {
                IsDprint = FALSE;
            }
        }
 
        if (IsDprint)
        {
            DPRINT("USBH_HubDispatch: DeviceObject - %p, Irp - %p\n",
                   DeviceObject,
                   Irp);
        }
 
        Status = USBH_PdoDispatch((PUSBHUB_PORT_PDO_EXTENSION)DeviceExtension, Irp);
    }
    else
    {
        DPRINT1("USBH_HubDispatch: Unknown ExtensionType - %x\n", ExtensionType);
        DbgBreakPoint();
        Status = STATUS_ASSERTION_FAILURE;
    }
 
    return Status;
}

Referenced by DriverEntry().

USBH_HubIsBusPowered()

BOOLEAN NTAPI USBH_HubIsBusPowered	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PUSB_CONFIGURATION_DESCRIPTOR	HubConfigDescriptor
	)

Definition at line 1589 of file usbhub.c.

{
    BOOLEAN Result;
    USHORT UsbStatus;
    NTSTATUS Status;
 
    DPRINT("USBH_HubIsBusPowered: ... \n");
 
    Status = USBH_SyncGetStatus(DeviceObject,
                                &UsbStatus,
                                URB_FUNCTION_GET_STATUS_FROM_DEVICE,
                                0);
 
    if (!NT_SUCCESS(Status))
    {
        Result = (HubConfigDescriptor->bmAttributes & USB_CONFIG_POWERED_MASK)
                                                   == USB_CONFIG_BUS_POWERED;
    }
    else
    {
        Result = (UsbStatus & USB_GETSTATUS_SELF_POWERED) == 0;
    }
 
    return Result;
}

Referenced by USBH_IoctlGetNodeInformation(), and USBH_StartHubFdoDevice().

USBH_HubQueuePortIdleIrps()

VOID NTAPI USBH_HubQueuePortIdleIrps	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PLIST_ENTRY	IdleList
	)

Definition at line 3052 of file usbhub.c.

{
    PDEVICE_OBJECT PortDevice;
    PUSBHUB_PORT_PDO_EXTENSION PortExtension;
    PIRP IdleIrp;
    PIRP HubIdleIrp;
    ULONG NumPorts;
    ULONG Port;
    KIRQL Irql;
 
    DPRINT("USBH_HubQueuePortIdleIrps ... \n");
 
    InitializeListHead(IdleList);
 
    IoAcquireCancelSpinLock(&Irql);
 
    NumPorts = HubExtension->HubDescriptor->bNumberOfPorts;
 
    for (Port = 0; Port < NumPorts; ++Port)
    {
        PortDevice = HubExtension->PortData[Port].DeviceObject;
 
        if (PortDevice)
        {
            PortExtension = PortDevice->DeviceExtension;
 
            IdleIrp = PortExtension->IdleNotificationIrp;
            PortExtension->IdleNotificationIrp = NULL;
 
            if (IdleIrp && IoSetCancelRoutine(IdleIrp, NULL))
            {
                DPRINT1("USBH_HubQueuePortIdleIrps: IdleIrp != NULL. FIXME\n");
                DbgBreakPoint();
            }
        }
    }
 
    if (HubExtension->HubFlags & USBHUB_FDO_FLAG_WAIT_IDLE_REQUEST)
    {
        HubIdleIrp = HubExtension->PendingIdleIrp;
        HubExtension->PendingIdleIrp = NULL;
    }
    else
    {
        HubIdleIrp = NULL;
    }
 
    IoReleaseCancelSpinLock(Irql);
 
    if (HubIdleIrp)
    {
        USBH_HubCancelIdleIrp(HubExtension, HubIdleIrp);
    }
}

Referenced by USBH_FdoIdleNotificationRequestComplete(), and USBH_HubCompletePortIdleIrps().

USBH_HubSetDWakeCompletion()

VOID NTAPI USBH_HubSetDWakeCompletion	(	IN PDEVICE_OBJECT	DeviceObject,
		IN UCHAR	MinorFunction,
		IN POWER_STATE	PowerState,
		IN PVOID	Context,
		IN PIO_STATUS_BLOCK	IoStatus
	)

Definition at line 3040 of file usbhub.c.

{
    DPRINT("USBH_HubSetDWakeCompletion: ... \n");
    KeSetEvent((PRKEVENT)Context, IO_NO_INCREMENT, FALSE);
}

Referenced by USBH_FdoIdleNotificationCallback().

USBH_IdleCompletePowerHubWorker()

VOID NTAPI USBH_IdleCompletePowerHubWorker	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PVOID	Context
	)

Definition at line 3607 of file usbhub.c.

{
    PUSBHUB_IDLE_HUB_CONTEXT HubWorkItemBuffer;
 
    DPRINT("USBH_IdleCompletePowerHubWorker ... \n");
 
    if (HubExtension &&
        HubExtension->CurrentPowerState.DeviceState != PowerDeviceD0 &&
        HubExtension->HubFlags & USBHUB_FDO_FLAG_DEVICE_STARTED)
    {
        USBH_HubSetD0(HubExtension);
    }
 
    HubWorkItemBuffer = Context;
 
    USBH_HubCompletePortIdleIrps(HubExtension, HubWorkItemBuffer->Status);
 
}

Referenced by USBH_FdoIdleNotificationRequestComplete().

USBH_PassIrp()

NTSTATUS NTAPI USBH_PassIrp	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp
	)

Definition at line 79 of file usbhub.c.

{
    DPRINT_PNP("USBH_PassIrp: DeviceObject - %p, Irp - %p\n",
               DeviceObject,
               Irp);
 
    IoSkipCurrentIrpStackLocation(Irp);
    return IoCallDriver(DeviceObject, Irp);
}

Referenced by USBH_DeviceControl(), USBH_FdoDispatch(), USBH_FdoPnP(), USBH_FdoQueryBusRelations(), USBH_FdoRemoveDevice(), USBH_PdoInternalControl(), USBH_PdoIoctlSubmitUrb(), USBH_PdoPnP(), and USBH_PdoUrbFilter().

USBH_PdoDispatch()

NTSTATUS NTAPI USBH_PdoDispatch	(	IN PUSBHUB_PORT_PDO_EXTENSION	PortExtension,
		IN PIRP	Irp
	)

Definition at line 4809 of file usbhub.c.

{
    PIO_STACK_LOCATION IoStack;
    UCHAR MajorFunction;
    BOOLEAN ShouldCompleteIrp;
    ULONG ControlCode;
    NTSTATUS Status;
 
    IoStack = IoGetCurrentIrpStackLocation(Irp);
    MajorFunction = IoStack->MajorFunction;
 
    switch (MajorFunction)
    {
        case IRP_MJ_CREATE:
        case IRP_MJ_CLOSE:
            DPRINT("USBH_PdoDispatch: IRP_MJ_CREATE / IRP_MJ_CLOSE (%d)\n",
                   MajorFunction);
            Status = STATUS_SUCCESS;
            USBH_CompleteIrp(Irp, Status);
            break;
 
        case IRP_MJ_DEVICE_CONTROL:
            ControlCode = IoStack->Parameters.DeviceIoControl.IoControlCode;
            DPRINT("USBH_PdoDispatch: IRP_MJ_DEVICE_CONTROL ControlCode - %x\n",
                   ControlCode);
 
            if (ControlCode == IOCTL_STORAGE_GET_MEDIA_SERIAL_NUMBER)
            {
                Status = STATUS_NOT_SUPPORTED;
                USBH_CompleteIrp(Irp, Status);
                break;
            }
 
            if (ControlCode == IOCTL_KS_PROPERTY)
            {
                DPRINT1("USBH_PdoDispatch: IOCTL_KS_PROPERTY FIXME\n");
                DbgBreakPoint();
                Status = STATUS_NOT_SUPPORTED;
                USBH_CompleteIrp(Irp, Status);
                break;
            }
 
            Status = Irp->IoStatus.Status;
            USBH_CompleteIrp(Irp, Status);
            break;
 
        case IRP_MJ_INTERNAL_DEVICE_CONTROL:
            Status = USBH_PdoInternalControl(PortExtension, Irp);
            break;
 
        case IRP_MJ_PNP:
            Status = USBH_PdoPnP(PortExtension,
                                 Irp,
                                 IoStack->MinorFunction,
                                 &ShouldCompleteIrp);
 
            if (ShouldCompleteIrp)
            {
                USBH_CompleteIrp(Irp, Status);
            }
 
            break;
 
        case IRP_MJ_POWER:
            Status = USBH_PdoPower(PortExtension, Irp, IoStack->MinorFunction);
            break;
 
        case IRP_MJ_SYSTEM_CONTROL:
            DPRINT1("USBH_PdoDispatch: USBH_SystemControl() UNIMPLEMENTED. FIXME\n");
            //USBH_PortSystemControl(PortExtension, Irp);
            Status = Irp->IoStatus.Status;
            USBH_CompleteIrp(Irp, Status);
            break;
 
        default:
            DPRINT("USBH_PdoDispatch: Unhandled MajorFunction - %d\n", MajorFunction);
            Status = Irp->IoStatus.Status;
            USBH_CompleteIrp(Irp, Status);
            break;
    }
 
    return Status;
}

Referenced by USBH_HubDispatch().

USBH_PdoSetCapabilities()

VOID NTAPI USBH_PdoSetCapabilities

(

IN PUSBHUB_PORT_PDO_EXTENSION

PortExtension

)

Definition at line 3981 of file usbhub.c.

{
    PUSBHUB_FDO_EXTENSION HubExtension;
    ULONG State;
    SYSTEM_POWER_STATE SystemPowerState;
    PDEVICE_POWER_STATE pDeviceState;
 
    DPRINT("USBH_PdoSetCapabilities ... \n");
 
    HubExtension = PortExtension->HubExtension;
 
    PortExtension->Capabilities.Size = 64;
    PortExtension->Capabilities.Version = 1;
 
    PortExtension->Capabilities.Removable = 1;
    PortExtension->Capabilities.Address = PortExtension->PortNumber;
 
    if (PortExtension->SerialNumber)
    {
        PortExtension->Capabilities.UniqueID = 1;
    }
    else
    {
        PortExtension->Capabilities.UniqueID = 0;
    }
 
    PortExtension->Capabilities.RawDeviceOK = 0;
 
    RtlCopyMemory(PortExtension->Capabilities.DeviceState,
                  HubExtension->DeviceState,
                  (PowerSystemMaximum + 2) * sizeof(POWER_STATE));
 
    PortExtension->Capabilities.DeviceState[1] = PowerDeviceD0;
 
    if (PortExtension->PortPdoFlags & USBHUB_PDO_FLAG_REMOTE_WAKEUP)
    {
        PortExtension->Capabilities.DeviceWake = PowerDeviceD2;
 
        PortExtension->Capabilities.DeviceD1 = 1;
        PortExtension->Capabilities.DeviceD2 = 1;
 
        PortExtension->Capabilities.WakeFromD0 = 1;
        PortExtension->Capabilities.WakeFromD1 = 1;
        PortExtension->Capabilities.WakeFromD2 = 1;
 
        pDeviceState = &PortExtension->Capabilities.DeviceState[2];
 
        for (State = 2; State <= 5; State++)
        {
            SystemPowerState = State;
 
            if (PortExtension->Capabilities.SystemWake < SystemPowerState)
            {
                *pDeviceState = PowerDeviceD3;
            }
            else
            {
                *pDeviceState = PowerDeviceD2;
            }
 
            ++pDeviceState;
        }
    }
    else
    {
        PortExtension->Capabilities.DeviceWake = PowerDeviceD0;
        PortExtension->Capabilities.DeviceState[2] = PowerDeviceD3;
        PortExtension->Capabilities.DeviceState[3] = PowerDeviceD3;
        PortExtension->Capabilities.DeviceState[4] = PowerDeviceD3;
        PortExtension->Capabilities.DeviceState[5] = PowerDeviceD3;
    }
}

Referenced by USBH_CreateDevice().

USBH_ProcessDeviceInformation()

NTSTATUS NTAPI USBH_ProcessDeviceInformation

(

IN PUSBHUB_PORT_PDO_EXTENSION

PortExtension

)

Definition at line 4056 of file usbhub.c.

{
    PUSB_INTERFACE_DESCRIPTOR Pid;
    PUSB_CONFIGURATION_DESCRIPTOR ConfigDescriptor;
    NTSTATUS Status;
 
    DPRINT("USBH_ProcessDeviceInformation ... \n");
 
    ConfigDescriptor = NULL;
 
    RtlZeroMemory(&PortExtension->InterfaceDescriptor,
                  sizeof(PortExtension->InterfaceDescriptor));
 
    PortExtension->PortPdoFlags &= ~USBHUB_PDO_FLAG_HUB_DEVICE;
 
    Status = USBH_GetConfigurationDescriptor(PortExtension->Common.SelfDevice,
                                             &ConfigDescriptor);
 
    if (!NT_SUCCESS(Status))
    {
        if (ConfigDescriptor)
        {
            ExFreePool(ConfigDescriptor);
        }
 
        return Status;
    }
 
    PortExtension->PortPdoFlags &= ~USBHUB_PDO_FLAG_REMOTE_WAKEUP;
 
    if (ConfigDescriptor->bmAttributes & 0x20)
    {
        /* device configuration supports remote wakeup */
        PortExtension->PortPdoFlags |= USBHUB_PDO_FLAG_REMOTE_WAKEUP;
    }
 
    USBHUB_DumpingDeviceDescriptor(&PortExtension->DeviceDescriptor);
    USBHUB_DumpingConfiguration(ConfigDescriptor);
 
    DPRINT_PNP("USBH_ProcessDeviceInformation: Class - %x, SubClass - %x, Protocol - %x\n",
               PortExtension->DeviceDescriptor.bDeviceClass,
               PortExtension->DeviceDescriptor.bDeviceSubClass,
               PortExtension->DeviceDescriptor.bDeviceProtocol);
 
    DPRINT_PNP("USBH_ProcessDeviceInformation: bNumConfigurations - %x, bNumInterfaces - %x\n",
               PortExtension->DeviceDescriptor.bNumConfigurations,
               ConfigDescriptor->bNumInterfaces);
 
 
    /* Enumeration of USB Composite Devices (msdn):
       1) The device class field of the device descriptor (bDeviceClass) must contain a value of zero,
       or the class (bDeviceClass), subclass (bDeviceSubClass), and protocol (bDeviceProtocol)
       fields of the device descriptor must have the values 0xEF, 0x02 and 0x01 respectively,
       as explained in USB Interface Association Descriptor.
       2) The device must have multiple interfaces
       3) The device must have a single configuration.
    */
 
    if (((PortExtension->DeviceDescriptor.bDeviceClass == USB_DEVICE_CLASS_RESERVED) ||
        (PortExtension->DeviceDescriptor.bDeviceClass == USB_DEVICE_CLASS_MISCELLANEOUS &&
         PortExtension->DeviceDescriptor.bDeviceSubClass == 0x02 &&
         PortExtension->DeviceDescriptor.bDeviceProtocol == 0x01)) &&
         (ConfigDescriptor->bNumInterfaces > 1) &&
         (PortExtension->DeviceDescriptor.bNumConfigurations < 2))
    {
        DPRINT("USBH_ProcessDeviceInformation: Multi-Interface configuration\n");
 
        PortExtension->PortPdoFlags |= USBHUB_PDO_FLAG_MULTI_INTERFACE;
 
        if (ConfigDescriptor)
        {
            ExFreePool(ConfigDescriptor);
        }
 
        return Status;
    }
 
    Pid = USBD_ParseConfigurationDescriptorEx(ConfigDescriptor,
                                              ConfigDescriptor,
                                              -1,
                                              -1,
                                              -1,
                                              -1,
                                              -1);
    if (Pid)
    {
        RtlCopyMemory(&PortExtension->InterfaceDescriptor,
                      Pid,
                      sizeof(PortExtension->InterfaceDescriptor));
 
        if (Pid->bInterfaceClass == USB_DEVICE_CLASS_HUB)
        {
            PortExtension->PortPdoFlags |= (USBHUB_PDO_FLAG_HUB_DEVICE |
                                            USBHUB_PDO_FLAG_REMOTE_WAKEUP);
        }
    }
    else
    {
        Status = STATUS_UNSUCCESSFUL;
    }
 
    if (ConfigDescriptor)
    {
        ExFreePool(ConfigDescriptor);
    }
 
    return Status;
}

Referenced by USBH_CreateDevice().

USBH_ProcessHubStateChange()

VOID NTAPI USBH_ProcessHubStateChange	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PUSB_HUB_STATUS_AND_CHANGE	HubStatus
	)

Definition at line 1841 of file usbhub.c.

{
    USB_HUB_CHANGE HubStatusChange;
 
    DPRINT_SCE("USBH_ProcessHubStateChange: HubStatus - %lx\n", HubStatus->AsUlong32);
 
    HubStatusChange = HubStatus->HubChange;
 
    if (HubStatusChange.LocalPowerChange)
    {
        DPRINT1("USBH_ProcessHubStateChange: LocalPowerChange\n");
        USBH_SyncClearHubStatus(HubExtension,
                                USBHUB_FEATURE_C_HUB_LOCAL_POWER);
    }
    else if (HubStatusChange.OverCurrentChange)
    {
        USBH_SyncClearHubStatus(HubExtension,
                                USBHUB_FEATURE_C_HUB_OVER_CURRENT);
        if (HubStatus->HubStatus.OverCurrent)
        {
            DPRINT1("USBH_ProcessHubStateChange: OverCurrent UNIMPLEMENTED. FIXME\n");
            DbgBreakPoint();
        }
    }
}

Referenced by USBH_ChangeIndicationWorker().

USBH_ProcessPortStateChange()

VOID NTAPI USBH_ProcessPortStateChange	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	Port,
		IN PUSB_PORT_STATUS_AND_CHANGE	PortStatus
	)

Definition at line 1870 of file usbhub.c.

{
    PUSBHUB_PORT_DATA PortData;
    USB_20_PORT_CHANGE PortStatusChange;
    PDEVICE_OBJECT PortDevice;
    PUSBHUB_PORT_PDO_EXTENSION PortExtension;
    PVOID SerialNumber;
    PVOID DeviceHandle;
    USHORT RequestValue;
    KIRQL Irql;
 
    DPRINT_SCE("USBH_ProcessPortStateChange ... \n");
 
    ASSERT(Port > 0);
    PortData = &HubExtension->PortData[Port - 1];
 
    PortStatusChange = PortStatus->PortChange.Usb20PortChange;
 
    if (PortStatusChange.ConnectStatusChange)
    {
        PortData->PortStatus = *PortStatus;
 
        USBH_SyncClearPortStatus(HubExtension,
                                 Port,
                                 USBHUB_FEATURE_C_PORT_CONNECTION);
 
        PortData = &HubExtension->PortData[Port - 1];
 
        PortDevice = PortData->DeviceObject;
 
        if (!PortDevice)
        {
            IoInvalidateDeviceRelations(HubExtension->LowerPDO, BusRelations);
            return;
        }
 
        PortExtension = PortDevice->DeviceExtension;
 
        if (PortExtension->PortPdoFlags & USBHUB_PDO_FLAG_OVERCURRENT_PORT)
        {
            return;
        }
 
        KeAcquireSpinLock(&HubExtension->RelationsWorkerSpinLock, &Irql);
 
        if (PortExtension->PortPdoFlags & USBHUB_PDO_FLAG_POWER_D3)
        {
            KeReleaseSpinLock(&HubExtension->RelationsWorkerSpinLock, Irql);
            IoInvalidateDeviceRelations(HubExtension->LowerPDO, BusRelations);
            return;
        }
 
        PortData->DeviceObject = NULL;
        PortData->ConnectionStatus = NoDeviceConnected;
 
        HubExtension->HubFlags |= USBHUB_FDO_FLAG_STATE_CHANGING;
 
        InsertTailList(&HubExtension->PdoList, &PortExtension->PortLink);
 
        KeReleaseSpinLock(&HubExtension->RelationsWorkerSpinLock, Irql);
 
        SerialNumber = InterlockedExchangePointer((PVOID)&PortExtension->SerialNumber,
                                                  NULL);
 
        if (SerialNumber)
        {
            ExFreePoolWithTag(SerialNumber, USB_HUB_TAG);
        }
 
        DeviceHandle = InterlockedExchangePointer(&PortExtension->DeviceHandle,
                                                  NULL);
 
        if (DeviceHandle)
        {
            USBD_RemoveDeviceEx(HubExtension, DeviceHandle, 0);
            USBH_SyncDisablePort(HubExtension, Port);
        }
 
        IoInvalidateDeviceRelations(HubExtension->LowerPDO, BusRelations);
    }
    else if (PortStatusChange.PortEnableDisableChange)
    {
        RequestValue = USBHUB_FEATURE_C_PORT_ENABLE;
        PortData->PortStatus = *PortStatus;
        USBH_SyncClearPortStatus(HubExtension, Port, RequestValue);
        return;
    }
    else if (PortStatusChange.SuspendChange)
    {
        DPRINT1("USBH_ProcessPortStateChange: SuspendChange UNIMPLEMENTED. FIXME\n");
        DbgBreakPoint();
    }
    else if (PortStatusChange.OverCurrentIndicatorChange)
    {
        DPRINT1("USBH_ProcessPortStateChange: OverCurrentIndicatorChange UNIMPLEMENTED. FIXME\n");
        DbgBreakPoint();
    }
    else if (PortStatusChange.ResetChange)
    {
        RequestValue = USBHUB_FEATURE_C_PORT_RESET;
        PortData->PortStatus = *PortStatus;
        USBH_SyncClearPortStatus(HubExtension, Port, RequestValue);
    }
}

Referenced by USBH_ChangeIndicationWorker().

USBH_QueueWorkItem()

VOID NTAPI USBH_QueueWorkItem	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PUSBHUB_IO_WORK_ITEM	HubIoWorkItem
	)

Definition at line 2917 of file usbhub.c.

{
    DPRINT("USBH_QueueWorkItem: ... \n");
 
    InterlockedIncrement(&HubExtension->PendingRequestCount);
    InterlockedIncrement(&HubIoWorkItem->HubWorkerQueued);
 
    ExInterlockedInsertTailList(&HubExtension->WorkItemList,
                                &HubIoWorkItem->HubWorkItemLink,
                                &HubExtension->WorkItemSpinLock);
 
    IoQueueWorkItem(HubIoWorkItem->HubWorkItem,
                    USBH_Worker,
                    HubIoWorkItem->HubWorkItemType,
                    HubIoWorkItem);
}

Referenced by USBH_ChangeIndicationProcessChange(), USBH_ChangeIndicationQueryChange(), USBH_CheckIdleDeferred(), USBH_FdoIdleNotificationRequestComplete(), USBH_PdoIoctlResetPort(), and USBH_PortIdleNotificationCancelRoutine().

USBH_RegQueryGenericUSBDeviceString()

NTSTATUS NTAPI USBH_RegQueryGenericUSBDeviceString

(

PVOID

USBDeviceString

)

Definition at line 5090 of file usbhub.c.

{
    RTL_QUERY_REGISTRY_TABLE QueryTable[2];
 
    DPRINT("USBH_RegQueryGenericUSBDeviceString ... \n");
 
    RtlZeroMemory(QueryTable, sizeof(QueryTable));
 
    QueryTable[0].QueryRoutine = USBH_GetConfigValue;
    QueryTable[0].Flags = RTL_QUERY_REGISTRY_REQUIRED;
    QueryTable[0].Name = L"GenericUSBDeviceString";
    QueryTable[0].EntryContext = USBDeviceString;
    QueryTable[0].DefaultType = REG_NONE;
    QueryTable[0].DefaultData = 0;
    QueryTable[0].DefaultLength = 0;
 
    return RtlQueryRegistryValues(RTL_REGISTRY_CONTROL,
                                  L"usbflags",
                                  QueryTable,
                                  NULL,
                                  NULL);
}

Referenced by DriverEntry().

USBH_ResetDevice()

NTSTATUS NTAPI USBH_ResetDevice	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	Port,
		IN BOOLEAN	IsKeepDeviceData,
		IN BOOLEAN	IsWait
	)

Definition at line 4615 of file usbhub.c.

{
    NTSTATUS Status;
    PUSBHUB_PORT_DATA PortData;
    PDEVICE_OBJECT PortDevice;
    PUSBHUB_PORT_PDO_EXTENSION PortExtension;
    PVOID NewDeviceHandle;
    PVOID Handle;
    PVOID OldDeviceHandle;
    PUSB_DEVICE_HANDLE * DeviceHandle;
    USB_PORT_STATUS_AND_CHANGE PortStatus;
 
    DPRINT("USBH_ResetDevice: HubExtension - %p, Port - %x, IsKeepDeviceData - %x, IsWait - %x\n",
           HubExtension,
           Port,
           IsKeepDeviceData,
           IsWait);
 
    Status = USBH_SyncGetPortStatus(HubExtension,
                                    Port,
                                    &PortStatus,
                                    sizeof(USB_PORT_STATUS_AND_CHANGE));
 
    if (!NT_SUCCESS(Status) ||
        !(PortStatus.PortStatus.Usb20PortStatus.CurrentConnectStatus))
    {
        return STATUS_UNSUCCESSFUL;
    }
 
    InterlockedIncrement(&HubExtension->PendingRequestCount);
 
    KeWaitForSingleObject(&HubExtension->ResetDeviceSemaphore,
                          Executive,
                          KernelMode,
                          FALSE,
                          NULL);
 
    ASSERT(Port > 0);
    PortData = &HubExtension->PortData[Port-1];
 
    PortDevice = PortData->DeviceObject;
 
    if (!PortDevice)
    {
        Status = STATUS_INVALID_PARAMETER;
 
        KeReleaseSemaphore(&HubExtension->ResetDeviceSemaphore,
                           LOW_REALTIME_PRIORITY,
                           1,
                           FALSE);
 
        if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
        {
            KeSetEvent(&HubExtension->PendingRequestEvent,
                       EVENT_INCREMENT,
                       FALSE);
        }
 
        return Status;
    }
 
    PortExtension = PortDevice->DeviceExtension;
    DeviceHandle = &PortExtension->DeviceHandle;
 
    OldDeviceHandle = InterlockedExchangePointer(&PortExtension->DeviceHandle,
                                                 NULL);
 
    if (OldDeviceHandle)
    {
        if (!(PortExtension->PortPdoFlags & USBHUB_PDO_FLAG_REMOVING_PORT_PDO))
        {
            Status = USBD_RemoveDeviceEx(HubExtension,
                                         OldDeviceHandle,
                                         IsKeepDeviceData);
 
            PortExtension->PortPdoFlags |= USBHUB_PDO_FLAG_REMOVING_PORT_PDO;
        }
    }
    else
    {
        OldDeviceHandle = NULL;
    }
 
    if (!NT_SUCCESS(Status))
    {
        goto ErrorExit;
    }
 
    Status = USBH_SyncResetPort(HubExtension, Port);
 
    if (!NT_SUCCESS(Status))
    {
        goto ErrorExit;
    }
 
    Status = USBH_SyncGetPortStatus(HubExtension,
                                    Port,
                                    &PortStatus,
                                    sizeof(USB_PORT_STATUS_AND_CHANGE));
 
    if (!NT_SUCCESS(Status))
    {
        goto ErrorExit;
    }
 
    Status = USBD_CreateDeviceEx(HubExtension,
                                 DeviceHandle,
                                 PortStatus.PortStatus,
                                 Port);
 
    if (!NT_SUCCESS(Status))
    {
        goto ErrorExit;
    }
 
    Status = USBH_SyncResetPort(HubExtension, Port);
 
    if (IsWait)
    {
        USBH_Wait(50);
    }
 
    if (!NT_SUCCESS(Status))
    {
        goto ErrorExit;
    }
 
    Status = USBD_InitializeDeviceEx(HubExtension,
                                     *DeviceHandle,
                                     &PortExtension->DeviceDescriptor.bLength,
                                     sizeof(PortExtension->DeviceDescriptor),
                                     &PortExtension->ConfigDescriptor.bLength,
                                     sizeof(PortExtension->ConfigDescriptor));
 
    if (NT_SUCCESS(Status))
    {
        if (IsKeepDeviceData)
        {
            Status = USBD_RestoreDeviceEx(HubExtension,
                                          OldDeviceHandle,
                                          *DeviceHandle);
 
            if (!NT_SUCCESS(Status))
            {
                Handle = InterlockedExchangePointer(DeviceHandle, NULL);
 
                USBD_RemoveDeviceEx(HubExtension, Handle, 0);
                USBH_SyncDisablePort(HubExtension, Port);
 
                Status = STATUS_NO_SUCH_DEVICE;
            }
        }
        else
        {
            PortExtension->PortPdoFlags &= ~USBHUB_PDO_FLAG_REMOVING_PORT_PDO;
        }
 
        goto Exit;
    }
 
    *DeviceHandle = NULL;
 
ErrorExit:
 
    NewDeviceHandle = InterlockedExchangePointer(DeviceHandle,
                                                 OldDeviceHandle);
 
    if (NewDeviceHandle)
    {
        Status = USBD_RemoveDeviceEx(HubExtension, NewDeviceHandle, 0);
    }
 
Exit:
 
    KeReleaseSemaphore(&HubExtension->ResetDeviceSemaphore,
                       LOW_REALTIME_PRIORITY,
                       1,
                       FALSE);
 
    if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
    {
        KeSetEvent(&HubExtension->PendingRequestEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
 
    return Status;
}

Referenced by USBH_ResetPortWorker(), and USBH_RestoreDevice().

USBH_ResetHub()

NTSTATUS NTAPI USBH_ResetHub

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 2117 of file usbhub.c.

{
    NTSTATUS Status;
    ULONG PortStatusFlags = 0;
 
    DPRINT("USBH_ResetHub: ... \n");
 
    Status = USBH_GetPortStatus(HubExtension, &PortStatusFlags);
 
    if (!NT_SUCCESS(Status))
    {
        return Status;
    }
 
    if (!(PortStatusFlags & USBD_PORT_ENABLED))
    {
        if (PortStatusFlags & USBD_PORT_CONNECTED)
        {
            USBH_EnableParentPort(HubExtension);
        }
    }
 
    Status = USBH_ResetInterruptPipe(HubExtension);
 
    return Status;
}

Referenced by USBH_ChangeIndicationWorker().

USBH_ResetInterruptPipe()

NTSTATUS NTAPI USBH_ResetInterruptPipe

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 2078 of file usbhub.c.

{
    struct _URB_PIPE_REQUEST * Urb;
    NTSTATUS Status;
 
    DPRINT("USBH_ResetInterruptPipe ... \n");
 
    Urb = ExAllocatePoolWithTag(NonPagedPool,
                                sizeof(struct _URB_PIPE_REQUEST),
                                USB_HUB_TAG);
 
    if (Urb)
    {
        RtlZeroMemory(Urb, sizeof(struct _URB_PIPE_REQUEST));
 
        Urb->Hdr.Length = sizeof(struct _URB_PIPE_REQUEST);
        Urb->Hdr.Function = URB_FUNCTION_SYNC_RESET_PIPE_AND_CLEAR_STALL;
        Urb->PipeHandle = HubExtension->PipeInfo.PipeHandle;
 
        Status = USBH_FdoSyncSubmitUrb(HubExtension->Common.SelfDevice,
                                       (PURB)Urb);
 
        ExFreePoolWithTag(Urb, USB_HUB_TAG);
    }
    else
    {
        Status = STATUS_INSUFFICIENT_RESOURCES;
    }
 
    if (NT_SUCCESS(Status))
    {
        HubExtension->RequestErrors = 0;
    }
 
    return Status;
}

Referenced by USBH_ResetHub().

USBH_SetPdoRegistryParameter()

NTSTATUS NTAPI USBH_SetPdoRegistryParameter	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PCWSTR	ValueName,
		IN PVOID	Data,
		IN ULONG	DataSize,
		IN ULONG	Type,
		IN ULONG	DevInstKeyType
	)

Definition at line 213 of file usbhub.c.

{
    NTSTATUS Status;
    UNICODE_STRING ValueNameString;
    HANDLE KeyHandle;
 
    DPRINT("USBH_SetPdoRegistryParameter ... \n");
 
    RtlInitUnicodeString(&ValueNameString, ValueName);
 
    Status = IoOpenDeviceRegistryKey(DeviceObject,
                                     DevInstKeyType,
                                     STANDARD_RIGHTS_ALL,
                                     &KeyHandle);
 
    if (NT_SUCCESS(Status))
    {
         ZwSetValueKey(KeyHandle,
                       &ValueNameString,
                       0,
                       Type,
                       Data,
                       DataSize);
 
        ZwClose(KeyHandle);
    }
 
    return Status;
}

Referenced by USBH_SymbolicLink().

USBH_SubmitStatusChangeTransfer()

NTSTATUS NTAPI USBH_SubmitStatusChangeTransfer

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 2442 of file usbhub.c.

{
    PIRP Irp;
    NTSTATUS Status;
    struct _URB_BULK_OR_INTERRUPT_TRANSFER * Urb;
    PIO_STACK_LOCATION IoStack;
 
    DPRINT_SCE("USBH_SubmitStatusChangeTransfer: HubExtension - %p, SCEIrp - %p\n",
               HubExtension,
               HubExtension->SCEIrp);
 
    if (HubExtension->HubFlags & USBHUB_FDO_FLAG_NOT_D0_STATE)
    {
        DPRINT_SCE("USBH_SubmitStatusChangeTransfer: USBHUB_FDO_FLAG_NOT_D0_STATE\n");
        DPRINT_SCE("USBH_SubmitStatusChangeTransfer: HubFlags - %lX\n",
                   HubExtension->HubFlags);
 
        return STATUS_INVALID_DEVICE_STATE;
    }
 
    Irp = HubExtension->SCEIrp;
 
    if (!Irp)
    {
        return STATUS_INVALID_DEVICE_STATE;
    }
 
    Urb = (struct _URB_BULK_OR_INTERRUPT_TRANSFER *)&HubExtension->SCEWorkerUrb;
 
    Urb->Hdr.Length = sizeof(struct _URB_BULK_OR_INTERRUPT_TRANSFER);
    Urb->Hdr.Function = URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER;
    Urb->Hdr.UsbdDeviceHandle = NULL;
 
    Urb->PipeHandle = HubExtension->PipeInfo.PipeHandle;
    Urb->TransferFlags = USBD_SHORT_TRANSFER_OK;
    Urb->TransferBuffer = HubExtension->SCEBitmap;
    Urb->TransferBufferLength = HubExtension->SCEBitmapLength;
    Urb->TransferBufferMDL = NULL;
    Urb->UrbLink = NULL;
 
    IoInitializeIrp(Irp,
                    IoSizeOfIrp(HubExtension->LowerDevice->StackSize),
                    HubExtension->LowerDevice->StackSize);
 
    IoStack = IoGetNextIrpStackLocation(Irp);
 
    IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
    IoStack->Parameters.Others.Argument1 = &HubExtension->SCEWorkerUrb;
    IoStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_INTERNAL_USB_SUBMIT_URB;
 
    IoSetCompletionRoutine(Irp,
                           USBH_ChangeIndication,
                           HubExtension,
                           TRUE,
                           TRUE,
                           TRUE);
 
    KeClearEvent(&HubExtension->StatusChangeEvent);
 
    Status = IoCallDriver(HubExtension->LowerDevice, Irp);
 
    return Status;
}

Referenced by USBH_ChangeIndicationAckChangeComplete(), USBH_ChangeIndicationWorker(), USBH_FdoPower(), USBH_PowerIrpCompletion(), USBH_StartHubFdoDevice(), and USBHUB_RootHubCallBack().

USBH_SyncClearHubStatus()

NTSTATUS NTAPI USBH_SyncClearHubStatus	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	RequestValue
	)

Definition at line 1389 of file usbhub.c.

{
    BM_REQUEST_TYPE RequestType;
 
    DPRINT("USBH_SyncClearHubStatus: RequestValue - %x\n", RequestValue);
 
    RequestType.B = 0;
    RequestType.Recipient = BMREQUEST_TO_DEVICE;
    RequestType.Type = BMREQUEST_CLASS;
    RequestType.Dir = BMREQUEST_HOST_TO_DEVICE;
 
    return USBH_Transact(HubExtension,
                         NULL,
                         0,
                         BMREQUEST_HOST_TO_DEVICE,
                         URB_FUNCTION_CLASS_DEVICE,
                         RequestType,
                         USB_REQUEST_CLEAR_FEATURE,
                         RequestValue,
                         0);
}

Referenced by USBH_ProcessHubStateChange().

USBH_SyncClearPortStatus()

NTSTATUS NTAPI USBH_SyncClearPortStatus	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	Port,
		IN USHORT	RequestValue
	)

Definition at line 1442 of file usbhub.c.

{
    BM_REQUEST_TYPE RequestType;
 
    DPRINT("USBH_SyncClearPortStatus: Port - %x, RequestValue - %x\n",
           Port,
           RequestValue);
 
    RequestType.B = 0;
    RequestType.Recipient = BMREQUEST_TO_OTHER;
    RequestType.Type = BMREQUEST_CLASS;
    RequestType.Dir = BMREQUEST_HOST_TO_DEVICE;
 
    return USBH_Transact(HubExtension,
                         NULL,
                         0,
                         BMREQUEST_HOST_TO_DEVICE,
                         URB_FUNCTION_CLASS_OTHER,
                         RequestType,
                         USB_REQUEST_CLEAR_FEATURE,
                         RequestValue,
                         Port);
}

Referenced by USBH_ProcessPortStateChange(), and USBH_StartHubFdoDevice().

USBH_SyncDisablePort()

NTSTATUS NTAPI USBH_SyncDisablePort	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	Port
	)

Definition at line 1553 of file usbhub.c.

{
    PUSBHUB_PORT_DATA PortData;
    NTSTATUS Status;
    BM_REQUEST_TYPE RequestType;
 
    DPRINT("USBH_SyncDisablePort ... \n");
 
    PortData = &HubExtension->PortData[Port - 1];
 
    RequestType.B = 0;
    RequestType.Recipient = BMREQUEST_TO_DEVICE;
    RequestType.Type = BMREQUEST_CLASS;
    RequestType.Dir = BMREQUEST_HOST_TO_DEVICE;
 
    Status = USBH_Transact(HubExtension,
                           NULL,
                           0,
                           BMREQUEST_HOST_TO_DEVICE,
                           URB_FUNCTION_CLASS_OTHER,
                           RequestType,
                           USB_REQUEST_CLEAR_FEATURE,
                           USBHUB_FEATURE_PORT_ENABLE,
                           Port);
 
    if (NT_SUCCESS(Status))
    {
        PortData->PortStatus.PortStatus.Usb20PortStatus.PortEnabledDisabled = 0;
    }
 
    return Status;
}

Referenced by USBH_FdoCleanup(), USBH_FdoQueryBusRelations(), USBH_PdoRemoveDevice(), USBH_ProcessPortStateChange(), and USBH_ResetDevice().

USBH_SyncGetDeviceConfigurationDescriptor()

NTSTATUS NTAPI USBH_SyncGetDeviceConfigurationDescriptor	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PUSB_CONFIGURATION_DESCRIPTOR	ConfigDescriptor,
		IN ULONG	NumberOfBytes,
		IN PULONG	OutLength
	)

Definition at line 913 of file usbhub.c.

{
    PCOMMON_DEVICE_EXTENSION DeviceExtension;
    struct _URB_CONTROL_DESCRIPTOR_REQUEST * Urb;
    NTSTATUS Status;
 
    DPRINT("USBH_SyncGetDeviceConfigurationDescriptor: ... \n");
 
    DeviceExtension = DeviceObject->DeviceExtension;
 
    if (OutLength)
    {
        *OutLength = 0;
    }
 
    Urb = ExAllocatePoolWithTag(NonPagedPool,
                                sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST),
                                USB_HUB_TAG);
 
    if (!Urb)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    RtlZeroMemory(Urb, sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST));
 
    Urb->Hdr.Function = URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE;
    Urb->Hdr.Length = sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST);
 
    Urb->TransferBufferLength = NumberOfBytes;
    Urb->TransferBuffer = ConfigDescriptor;
    Urb->DescriptorType = USB_CONFIGURATION_DESCRIPTOR_TYPE;
 
    if (DeviceExtension->ExtensionType == USBH_EXTENSION_TYPE_HUB ||
        DeviceExtension->ExtensionType == USBH_EXTENSION_TYPE_PARENT)
    {
        Status = USBH_FdoSyncSubmitUrb(DeviceObject, (PURB)Urb);
    }
    else
    {
        Status = USBH_SyncSubmitUrb(DeviceObject, (PURB)Urb);
    }
 
    if (OutLength)
    {
        *OutLength = Urb->TransferBufferLength;
    }
 
    if (Urb)
    {
        ExFreePoolWithTag(Urb, USB_HUB_TAG);
    }
 
    return Status;
}

Referenced by USBH_GetConfigurationDescriptor().

USBH_SyncGetDeviceHandle()

PUSB_DEVICE_HANDLE NTAPI USBH_SyncGetDeviceHandle

(

IN PDEVICE_OBJECT

DeviceObject

)

Definition at line 832 of file usbhub.c.

{
    PIRP Irp;
    KEVENT Event;
    IO_STATUS_BLOCK IoStatusBlock;
    PUSB_DEVICE_HANDLE DeviceHandle = NULL;
    PIO_STACK_LOCATION IoStack;
 
    DPRINT("USBH_SyncGetDeviceHandle: ... \n");
 
    KeInitializeEvent(&Event, NotificationEvent, FALSE);
 
    Irp = IoBuildDeviceIoControlRequest(IOCTL_INTERNAL_USB_GET_DEVICE_HANDLE,
                                        DeviceObject,
                                        NULL,
                                        0,
                                        NULL,
                                        0,
                                        TRUE,
                                        &Event,
                                        &IoStatusBlock);
 
    if (!Irp)
    {
        DPRINT1("USBH_SyncGetDeviceHandle: Irp - NULL!\n");
        return NULL;
    }
 
    IoStack = IoGetNextIrpStackLocation(Irp);
    IoStack->Parameters.Others.Argument1 = &DeviceHandle;
 
    if (IoCallDriver(DeviceObject, Irp) == STATUS_PENDING)
    {
        KeWaitForSingleObject(&Event,
                              Suspended,
                              KernelMode,
                              FALSE,
                              NULL);
    }
 
    return DeviceHandle;
}

Referenced by USBD_CreateDeviceEx(), USBD_Initialize20Hub(), and USBH_StartHubFdoDevice().

USBH_SyncGetHubCount()

NTSTATUS NTAPI USBH_SyncGetHubCount	(	IN PDEVICE_OBJECT	DeviceObject,
		IN OUT PULONG	OutHubCount
	)

Definition at line 781 of file usbhub.c.

{
    KEVENT Event;
    IO_STATUS_BLOCK IoStatusBlock;
    PIRP Irp;
    PIO_STACK_LOCATION IoStack;
    NTSTATUS Status;
 
    DPRINT("USBH_SyncGetHubCount: *OutHubCount - %x\n", *OutHubCount);
 
    KeInitializeEvent(&Event, NotificationEvent, FALSE);
 
    Irp = IoBuildDeviceIoControlRequest(IOCTL_INTERNAL_USB_GET_HUB_COUNT,
                                        DeviceObject,
                                        NULL,
                                        0,
                                        NULL,
                                        0,
                                        TRUE,
                                        &Event,
                                        &IoStatusBlock);
 
    if (!Irp)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    IoStack = IoGetNextIrpStackLocation(Irp);
    IoStack->Parameters.Others.Argument1 = OutHubCount;
 
    Status = IoCallDriver(DeviceObject, Irp);
 
    if (Status == STATUS_PENDING)
    {
        KeWaitForSingleObject(&Event,
                              Suspended,
                              KernelMode,
                              FALSE,
                              NULL);
    }
    else
    {
        IoStatusBlock.Status = Status;
    }
 
    return IoStatusBlock.Status;
}

Referenced by USBH_PdoInternalControl(), and USBH_StartHubFdoDevice().

USBH_SyncGetHubDescriptor()

NTSTATUS NTAPI USBH_SyncGetHubDescriptor

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 1048 of file usbhub.c.

{
    PUSB_EXTHUB_INFORMATION_0 ExtendedHubInfo;
    ULONG NumberPorts;
    PUSBHUB_PORT_DATA PortData;
    USHORT RequestValue;
    ULONG NumberOfBytes;
    NTSTATUS Status;
    PUSB_HUB_DESCRIPTOR HubDescriptor = NULL;
    ULONG ix;
    ULONG Retry;
 
    DPRINT("USBH_SyncGetHubDescriptor: ... \n");
 
    ExtendedHubInfo = ExAllocatePoolWithTag(NonPagedPool,
                                            sizeof(USB_EXTHUB_INFORMATION_0),
                                            USB_HUB_TAG);
 
    if (!ExtendedHubInfo)
    {
        Status = STATUS_INSUFFICIENT_RESOURCES;
        goto ErrorExit;
    }
 
    RtlZeroMemory(ExtendedHubInfo, sizeof(USB_EXTHUB_INFORMATION_0));
 
    Status = USBHUB_GetExtendedHubInfo(HubExtension, ExtendedHubInfo);
 
    if (!NT_SUCCESS(Status))
    {
        ExFreePoolWithTag(ExtendedHubInfo, USB_HUB_TAG);
        ExtendedHubInfo = NULL;
    }
 
    NumberOfBytes = sizeof(USB_HUB_DESCRIPTOR);
 
    HubDescriptor = ExAllocatePoolWithTag(NonPagedPool,
                                          NumberOfBytes,
                                          USB_HUB_TAG);
 
    if (!HubDescriptor)
    {
        Status = STATUS_INSUFFICIENT_RESOURCES;
        goto ErrorExit;
    }
 
    RtlZeroMemory(HubDescriptor, NumberOfBytes);
 
    RequestValue = 0;
    Retry = 0;
 
    while (TRUE)
    {
        while (Retry <= 5)
        {
            BM_REQUEST_TYPE RequestType;
 
            RequestType.B = 0;
            RequestType.Recipient = BMREQUEST_TO_DEVICE;
            RequestType.Type = BMREQUEST_STANDARD;
            RequestType.Dir = BMREQUEST_DEVICE_TO_HOST;
 
            Status = USBH_Transact(HubExtension,
                                   HubDescriptor,
                                   NumberOfBytes,
                                   BMREQUEST_DEVICE_TO_HOST,
                                   URB_FUNCTION_CLASS_DEVICE,
                                   RequestType,
                                   USB_REQUEST_GET_DESCRIPTOR,
                                   RequestValue,
                                   0);
 
            if (NT_SUCCESS(Status))
            {
                break;
            }
 
            RequestValue = 0x2900; // Hub DescriptorType - 0x29
 
            Retry++;
        }
 
        if (HubDescriptor->bDescriptorLength <= NumberOfBytes)
        {
            break;
        }
 
        NumberOfBytes = HubDescriptor->bDescriptorLength;
        ExFreePoolWithTag(HubDescriptor, USB_HUB_TAG);
 
        if (Retry >= 5)
        {
            Status = STATUS_DEVICE_DATA_ERROR;
            HubDescriptor = NULL;
            goto ErrorExit;
        }
 
        HubDescriptor = ExAllocatePoolWithTag(NonPagedPool,
                                              NumberOfBytes,
                                              USB_HUB_TAG);
 
        if (!HubDescriptor)
        {
            Status = STATUS_INSUFFICIENT_RESOURCES;
            goto ErrorExit;
        }
 
        RtlZeroMemory(HubDescriptor, NumberOfBytes);
    }
 
    NumberPorts = HubDescriptor->bNumberOfPorts;
 
    if (HubExtension->PortData)
    {
        PortData = HubExtension->PortData;
 
        for (ix = 0; ix < NumberPorts; ix++)
        {
            PortData[ix].PortStatus.AsUlong32 = 0;
 
            if (ExtendedHubInfo)
            {
                PortData[ix].PortAttributes = ExtendedHubInfo->Port[ix].PortAttributes;
            }
            else
            {
                PortData[ix].PortAttributes = 0;
            }
 
            PortData[ix].ConnectionStatus = NoDeviceConnected;
 
            if (PortData[ix].DeviceObject != NULL)
            {
                PortData[ix].ConnectionStatus = DeviceConnected;
            }
        }
    }
    else
    {
        PortData = NULL;
 
        if (HubDescriptor->bNumberOfPorts)
        {
            PortData = ExAllocatePoolWithTag(NonPagedPool,
                                             NumberPorts * sizeof(USBHUB_PORT_DATA),
                                             USB_HUB_TAG);
        }
 
        if (!PortData)
        {
            Status = STATUS_INSUFFICIENT_RESOURCES;
            goto ErrorExit;
        }
 
        RtlZeroMemory(PortData, NumberPorts * sizeof(USBHUB_PORT_DATA));
 
        for (ix = 0; ix < NumberPorts; ix++)
        {
            PortData[ix].ConnectionStatus = NoDeviceConnected;
 
            if (ExtendedHubInfo)
            {
                PortData[ix].PortAttributes = ExtendedHubInfo->Port[ix].PortAttributes;
            }
        }
    }
 
    if (!NT_SUCCESS(Status))
    {
        goto ErrorExit;
    }
 
    HubExtension->HubDescriptor = HubDescriptor;
 
    HubExtension->PortData = PortData;
 
    if (ExtendedHubInfo)
    {
        ExFreePoolWithTag(ExtendedHubInfo, USB_HUB_TAG);
    }
 
    return Status;
 
ErrorExit:
 
    if (HubDescriptor)
    {
        ExFreePoolWithTag(HubDescriptor, USB_HUB_TAG);
    }
 
    if (ExtendedHubInfo)
    {
        ExFreePoolWithTag(ExtendedHubInfo, USB_HUB_TAG);
    }
 
    return Status;
}

Referenced by USBH_StartHubFdoDevice().

USBH_SyncGetHubStatus()

NTSTATUS NTAPI USBH_SyncGetHubStatus	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PUSB_HUB_STATUS_AND_CHANGE	HubStatus,
		IN ULONG	Length
	)

Definition at line 1363 of file usbhub.c.

{
    BM_REQUEST_TYPE RequestType;
 
    DPRINT("USBH_SyncGetHubStatus\n");
 
    RequestType.B = 0;
    RequestType.Recipient = BMREQUEST_TO_DEVICE;
    RequestType.Type = BMREQUEST_CLASS;
    RequestType.Dir = BMREQUEST_DEVICE_TO_HOST;
 
    return USBH_Transact(HubExtension,
                         HubStatus,
                         Length,
                         BMREQUEST_DEVICE_TO_HOST,
                         URB_FUNCTION_CLASS_DEVICE,
                         RequestType,
                         USB_REQUEST_GET_STATUS,
                         0,
                         0);
}

Referenced by USBH_ChangeIndicationWorker().

USBH_SyncGetPortStatus()

NTSTATUS NTAPI USBH_SyncGetPortStatus	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	Port,
		IN PUSB_PORT_STATUS_AND_CHANGE	PortStatus,
		IN ULONG	Length
	)

Definition at line 1414 of file usbhub.c.

{
    BM_REQUEST_TYPE RequestType;
 
    DPRINT("USBH_SyncGetPortStatus: Port - %x\n", Port);
 
    RequestType.B = 0;
    RequestType.Recipient = BMREQUEST_TO_OTHER;
    RequestType.Type = BMREQUEST_CLASS;
    RequestType.Dir = BMREQUEST_DEVICE_TO_HOST;
 
    return USBH_Transact(HubExtension,
                         PortStatus,
                         Length,
                         BMREQUEST_DEVICE_TO_HOST,
                         URB_FUNCTION_CLASS_OTHER,
                         RequestType,
                         USB_REQUEST_GET_STATUS,
                         0,
                         Port);
}

Referenced by USBH_ChangeIndicationWorker(), USBH_FdoQueryBusRelations(), USBH_PdoIoctlGetPortStatus(), USBH_ResetDevice(), USBH_RestoreDevice(), and USBH_SyncResetPort().

USBH_SyncGetRootHubPdo()

NTSTATUS NTAPI USBH_SyncGetRootHubPdo	(	IN PDEVICE_OBJECT	DeviceObject,
		IN OUT PDEVICE_OBJECT *	OutPdo1,
		IN OUT PDEVICE_OBJECT *	OutPdo2
	)

Definition at line 728 of file usbhub.c.

{
    KEVENT Event;
    IO_STATUS_BLOCK IoStatusBlock;
    PIRP Irp;
    PIO_STACK_LOCATION IoStack;
    NTSTATUS Status;
 
    DPRINT("USBH_SyncGetRootHubPdo: ... \n");
 
    KeInitializeEvent(&Event, NotificationEvent, FALSE);
 
    Irp = IoBuildDeviceIoControlRequest(IOCTL_INTERNAL_USB_GET_ROOTHUB_PDO,
                                        DeviceObject,
                                        NULL,
                                        0,
                                        NULL,
                                        0,
                                        TRUE,
                                        &Event,
                                        &IoStatusBlock);
 
    if (!Irp)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    IoStack = IoGetNextIrpStackLocation(Irp);
    IoStack->Parameters.Others.Argument1 = OutPdo1;
    IoStack->Parameters.Others.Argument2 = OutPdo2;
 
    Status = IoCallDriver(DeviceObject, Irp);
 
    if (Status == STATUS_PENDING)
    {
        KeWaitForSingleObject(&Event,
                              Suspended,
                              KernelMode,
                              FALSE,
                              NULL);
    }
    else
    {
        IoStatusBlock.Status = Status;
    }
 
    return IoStatusBlock.Status;
}

Referenced by USBH_FdoStartDevice(), and USBH_StartHubFdoDevice().

USBH_SyncGetStatus()

NTSTATUS NTAPI USBH_SyncGetStatus	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PUSHORT	OutStatus,
		IN USHORT	Function,
		IN USHORT	RequestIndex
	)

Definition at line 1323 of file usbhub.c.

{
    struct _URB_CONTROL_GET_STATUS_REQUEST * Urb;
    NTSTATUS NtStatus;
    USHORT UsbStatus;
 
    DPRINT("USBH_SyncGetStatus: ... \n");
 
    Urb = ExAllocatePoolWithTag(NonPagedPool,
                                sizeof(struct _URB_CONTROL_GET_STATUS_REQUEST),
                                USB_HUB_TAG);
 
    if (!Urb)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    RtlZeroMemory(Urb, sizeof(struct _URB_CONTROL_GET_STATUS_REQUEST));
 
    Urb->Hdr.Length = sizeof(struct _URB_CONTROL_GET_STATUS_REQUEST);
    Urb->Hdr.Function = Function;
 
    Urb->TransferBuffer = &UsbStatus;
    Urb->TransferBufferLength = sizeof(UsbStatus);
    Urb->Index = RequestIndex;
 
    NtStatus = USBH_FdoSyncSubmitUrb(DeviceObject, (PURB)Urb);
 
    *OutStatus = UsbStatus;
 
    ExFreePoolWithTag(Urb, USB_HUB_TAG);
 
    return NtStatus;
}

Referenced by USBH_HubIsBusPowered().

USBH_SyncGetStringDescriptor()

NTSTATUS NTAPI USBH_SyncGetStringDescriptor	(	IN PDEVICE_OBJECT	DeviceObject,
		IN UCHAR	Index,
		IN USHORT	LanguageId,
		IN PUSB_STRING_DESCRIPTOR	Descriptor,
		IN ULONG	NumberOfBytes,
		IN PULONG	OutLength,
		IN BOOLEAN	IsValidateLength
	)

Definition at line 1248 of file usbhub.c.

{
    struct _URB_CONTROL_DESCRIPTOR_REQUEST * Urb;
    ULONG TransferedLength;
    NTSTATUS Status;
 
    DPRINT("USBH_SyncGetStringDescriptor: Index - %x, LanguageId - %x\n",
           Index,
           LanguageId);
 
    Urb = ExAllocatePoolWithTag(NonPagedPool,
                                sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST),
                                USB_HUB_TAG);
 
    if (!Urb)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    RtlZeroMemory(Urb, sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST));
 
    Urb->Hdr.Function = URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE;
    Urb->Hdr.Length = sizeof(struct _URB_CONTROL_DESCRIPTOR_REQUEST);
 
    Urb->TransferBuffer = Descriptor;
    Urb->TransferBufferLength = NumberOfBytes;
 
    Urb->Index = Index;
    Urb->DescriptorType = USB_STRING_DESCRIPTOR_TYPE;
    Urb->LanguageId = LanguageId;
 
    Status = USBH_SyncSubmitUrb(DeviceObject, (PURB)Urb);
 
    if (!NT_SUCCESS(Status))
    {
        ExFreePoolWithTag(Urb, USB_HUB_TAG);
        return Status;
    }
 
    TransferedLength = Urb->TransferBufferLength;
 
    if (TransferedLength > NumberOfBytes)
    {
        Status = STATUS_DEVICE_DATA_ERROR;
    }
 
    if (!NT_SUCCESS(Status))
    {
        ExFreePoolWithTag(Urb, USB_HUB_TAG);
        return Status;
    }
 
    if (OutLength)
    {
        *OutLength = TransferedLength;
    }
 
    if (IsValidateLength && TransferedLength != Descriptor->bLength)
    {
        Status = STATUS_DEVICE_DATA_ERROR;
    }
 
    ExFreePoolWithTag(Urb, USB_HUB_TAG);
 
    return Status;
}

Referenced by USBH_CheckDeviceLanguage(), USBH_GetSerialNumberString(), and USBH_PdoQueryDeviceText().

USBH_SyncIrpComplete()

NTSTATUS NTAPI USBH_SyncIrpComplete	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp,
		IN PVOID	Context
	)

Definition at line 92 of file usbhub.c.

{
    PUSBHUB_URB_TIMEOUT_CONTEXT HubTimeoutContext;
    KIRQL OldIrql;
    BOOLEAN TimerCancelled;
 
    DPRINT("USBH_SyncIrpComplete: ... \n");
 
    HubTimeoutContext = Context;
 
    KeAcquireSpinLock(&HubTimeoutContext->UrbTimeoutSpinLock, &OldIrql);
    HubTimeoutContext->IsNormalCompleted = TRUE;
    TimerCancelled = KeCancelTimer(&HubTimeoutContext->UrbTimeoutTimer);
    KeReleaseSpinLock(&HubTimeoutContext->UrbTimeoutSpinLock, OldIrql);
 
    if (TimerCancelled)
    {
        KeSetEvent(&HubTimeoutContext->UrbTimeoutEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
 
    return STATUS_SUCCESS;
}

Referenced by USBH_SyncSubmitUrb().

USBH_SyncPowerOnPort()

NTSTATUS NTAPI USBH_SyncPowerOnPort	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	Port,
		IN BOOLEAN	IsWait
	)

Definition at line 1470 of file usbhub.c.

{
    PUSBHUB_PORT_DATA PortData;
    PUSB_HUB_DESCRIPTOR HubDescriptor;
    NTSTATUS Status = STATUS_SUCCESS;
    BM_REQUEST_TYPE RequestType;
    PUSB_PORT_STATUS_AND_CHANGE PortStatus;
 
    DPRINT("USBH_SyncPowerOnPort: Port - %x, IsWait - %x\n", Port, IsWait);
 
    ASSERT(Port > 0);
    PortData = &HubExtension->PortData[Port - 1];
    PortStatus = &PortData->PortStatus;
 
    if (PortStatus->PortStatus.Usb20PortStatus.CurrentConnectStatus == 1)
    {
        return Status;
    }
 
    RequestType.B = 0;
    RequestType.Recipient = BMREQUEST_TO_DEVICE;
    RequestType.Type = BMREQUEST_CLASS;
    RequestType.Dir = BMREQUEST_HOST_TO_DEVICE;
 
    Status = USBH_Transact(HubExtension,
                           NULL,
                           0,
                           BMREQUEST_HOST_TO_DEVICE,
                           URB_FUNCTION_CLASS_OTHER,
                           RequestType,
                           USB_REQUEST_SET_FEATURE,
                           USBHUB_FEATURE_PORT_POWER,
                           Port);
 
    if (NT_SUCCESS(Status))
    {
        if (IsWait)
        {
            HubDescriptor = HubExtension->HubDescriptor;
            USBH_Wait(2 * HubDescriptor->bPowerOnToPowerGood);
        }
 
        PortStatus->PortStatus.Usb20PortStatus.CurrentConnectStatus = 1;
    }
 
    return Status;
}

Referenced by USBH_SyncPowerOnPorts().

USBH_SyncPowerOnPorts()

NTSTATUS NTAPI USBH_SyncPowerOnPorts

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 1522 of file usbhub.c.

{
    PUSB_HUB_DESCRIPTOR HubDescriptor;
    NTSTATUS Status = STATUS_UNSUCCESSFUL;
    USHORT Port;
    UCHAR NumberOfPorts;
 
    DPRINT("USBH_SyncPowerOnPorts: ... \n");
 
    HubDescriptor = HubExtension->HubDescriptor;
    NumberOfPorts = HubDescriptor->bNumberOfPorts;
 
    for (Port = 1; Port <= NumberOfPorts; ++Port)
    {
        Status = USBH_SyncPowerOnPort(HubExtension, Port, 0);
 
        if (!NT_SUCCESS(Status))
        {
            DPRINT1("USBH_SyncPowerOnPorts: USBH_SyncPowerOnPort() failed - %lX\n",
                    Status);
            break;
        }
    }
 
    USBH_Wait(2 * HubDescriptor->bPowerOnToPowerGood);
 
    return Status;
}

Referenced by USBH_StartHubFdoDevice().

USBH_SyncResetPort()

NTSTATUS NTAPI USBH_SyncResetPort	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN USHORT	Port
	)

Definition at line 471 of file usbhub.c.

{
    USB_PORT_STATUS_AND_CHANGE PortStatus;
    KEVENT Event;
    LARGE_INTEGER Timeout;
    ULONG ResetRetry = 0;
    NTSTATUS Status;
 
    DPRINT("USBH_SyncResetPort: Port - %x\n", Port);
 
    InterlockedIncrement(&HubExtension->PendingRequestCount);
 
    KeWaitForSingleObject(&HubExtension->HubPortSemaphore,
                          Executive,
                          KernelMode,
                          FALSE,
                          NULL);
 
    Status = USBH_SyncGetPortStatus(HubExtension,
                                    Port,
                                    &PortStatus,
                                    sizeof(USB_PORT_STATUS_AND_CHANGE));
 
    if (NT_SUCCESS(Status) &&
        (PortStatus.PortStatus.Usb20PortStatus.CurrentConnectStatus == 0))
    {
        Status = STATUS_UNSUCCESSFUL;
        goto Exit;
    }
 
    HubExtension->HubFlags |= USBHUB_FDO_FLAG_RESET_PORT_LOCK;
 
    while (TRUE)
    {
        BM_REQUEST_TYPE RequestType;
 
        KeInitializeEvent(&Event, NotificationEvent, FALSE);
 
        InterlockedExchangePointer((PVOID)&HubExtension->pResetPortEvent,
                                   &Event);
 
        RequestType.B = 0;
        RequestType.Recipient = BMREQUEST_TO_DEVICE;
        RequestType.Type = BMREQUEST_CLASS;
        RequestType.Dir = BMREQUEST_HOST_TO_DEVICE;
 
        Status = USBH_Transact(HubExtension,
                               NULL,
                               0,
                               BMREQUEST_HOST_TO_DEVICE,
                               URB_FUNCTION_CLASS_OTHER,
                               RequestType,
                               USB_REQUEST_SET_FEATURE,
                               USBHUB_FEATURE_PORT_RESET,
                               Port);
 
        Timeout.QuadPart = -5000 * 10000;
 
        if (!NT_SUCCESS(Status))
        {
            InterlockedExchangePointer((PVOID)&HubExtension->pResetPortEvent,
                                       NULL);
 
            USBH_Wait(10);
            HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_RESET_PORT_LOCK;
 
            goto Exit;
        }
 
        Status = KeWaitForSingleObject(&Event,
                                       Suspended,
                                       KernelMode,
                                       FALSE,
                                       &Timeout);
 
        if (Status != STATUS_TIMEOUT)
        {
            break;
        }
 
        Status = USBH_SyncGetPortStatus(HubExtension,
                                        Port,
                                        &PortStatus,
                                        sizeof(USB_PORT_STATUS_AND_CHANGE));
 
        if (!NT_SUCCESS(Status) ||
            (PortStatus.PortStatus.Usb20PortStatus.CurrentConnectStatus == 0) ||
            ResetRetry >= USBHUB_RESET_PORT_MAX_RETRY)
        {
            InterlockedExchangePointer((PVOID)&HubExtension->pResetPortEvent,
                                       NULL);
 
            USBH_Wait(10);
            HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_RESET_PORT_LOCK;
 
            Status = STATUS_DEVICE_DATA_ERROR;
            goto Exit;
        }
 
        ResetRetry++;
    }
 
    Status = USBH_SyncGetPortStatus(HubExtension,
                                    Port,
                                    &PortStatus,
                                    sizeof(USB_PORT_STATUS_AND_CHANGE));
 
    if ((PortStatus.PortStatus.Usb20PortStatus.CurrentConnectStatus == 0) &&
        NT_SUCCESS(Status) &&
        HubExtension->HubFlags & USBHUB_FDO_FLAG_USB20_HUB)
    {
        Status = STATUS_DEVICE_DATA_ERROR;
    }
 
    USBH_Wait(10);
    HubExtension->HubFlags &= ~USBHUB_FDO_FLAG_RESET_PORT_LOCK;
 
Exit:
 
    KeReleaseSemaphore(&HubExtension->HubPortSemaphore,
                       LOW_REALTIME_PRIORITY,
                       1,
                       FALSE);
 
    if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
    {
        KeSetEvent(&HubExtension->PendingRequestEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
 
    return Status;
}

Referenced by USBH_CreateDevice(), USBH_FdoQueryBusRelations(), and USBH_ResetDevice().

USBH_SyncSubmitUrb()

NTSTATUS NTAPI USBH_SyncSubmitUrb	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PURB	Urb
	)

Definition at line 250 of file usbhub.c.

{
    KEVENT Event;
    IO_STATUS_BLOCK IoStatusBlock;
    PIRP Irp;
    PIO_STACK_LOCATION IoStack;
    PUSBHUB_URB_TIMEOUT_CONTEXT HubTimeoutContext;
    BOOLEAN IsWaitTimeout = FALSE;
    LARGE_INTEGER DueTime;
    NTSTATUS Status;
 
    DPRINT("USBH_SyncSubmitUrb: ... \n");
 
    Urb->UrbHeader.UsbdDeviceHandle = NULL;
 
    KeInitializeEvent(&Event, NotificationEvent, FALSE);
 
    Irp = IoBuildDeviceIoControlRequest(IOCTL_INTERNAL_USB_SUBMIT_URB,
                                        DeviceObject,
                                        NULL,
                                        0,
                                        NULL,
                                        0,
                                        TRUE,
                                        &Event,
                                        &IoStatusBlock);
 
    if (!Irp)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    IoStack = IoGetNextIrpStackLocation(Irp);
    IoStack->Parameters.Others.Argument1 = Urb;
 
    HubTimeoutContext = ExAllocatePoolWithTag(NonPagedPool,
                                              sizeof(USBHUB_URB_TIMEOUT_CONTEXT),
                                              USB_HUB_TAG);
 
    if (HubTimeoutContext)
    {
        RtlZeroMemory(HubTimeoutContext, sizeof(USBHUB_URB_TIMEOUT_CONTEXT));
 
        HubTimeoutContext->Irp = Irp;
        HubTimeoutContext->IsNormalCompleted = FALSE;
 
        KeInitializeEvent(&HubTimeoutContext->UrbTimeoutEvent,
                          NotificationEvent,
                          FALSE);
 
        KeInitializeSpinLock(&HubTimeoutContext->UrbTimeoutSpinLock);
        KeInitializeTimer(&HubTimeoutContext->UrbTimeoutTimer);
 
        KeInitializeDpc(&HubTimeoutContext->UrbTimeoutDPC,
                        USBH_UrbTimeoutDPC,
                        HubTimeoutContext);
 
        DueTime.QuadPart = -5000 * 10000; // Timeout 5 sec.
 
        KeSetTimer(&HubTimeoutContext->UrbTimeoutTimer,
                   DueTime,
                   &HubTimeoutContext->UrbTimeoutDPC);
 
        IoSetCompletionRoutine(Irp,
                               USBH_SyncIrpComplete,
                               HubTimeoutContext,
                               TRUE,
                               TRUE,
                               TRUE);
 
        IsWaitTimeout = TRUE;
    }
 
    Status = IoCallDriver(DeviceObject, Irp);
 
    if (Status == STATUS_PENDING)
    {
        KeWaitForSingleObject(&Event,
                              Suspended,
                              KernelMode,
                              FALSE,
                              NULL);
    }
    else
    {
        IoStatusBlock.Status = Status;
    }
 
    if (IsWaitTimeout)
    {
        KeWaitForSingleObject(&HubTimeoutContext->UrbTimeoutEvent,
                              Suspended,
                              KernelMode,
                              FALSE,
                              NULL);
 
        ExFreePoolWithTag(HubTimeoutContext, USB_HUB_TAG);
    }
 
    return IoStatusBlock.Status;
}

Referenced by USBH_FdoSyncSubmitUrb(), USBH_IoctlGetDescriptor(), USBH_SyncGetDeviceConfigurationDescriptor(), and USBH_SyncGetStringDescriptor().

USBH_Transact()

NTSTATUS NTAPI USBH_Transact	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PVOID	TransferBuffer,
		IN ULONG	BufferLen,
		IN BOOLEAN	IsDeviceToHost,
		IN USHORT	Function,
		IN BM_REQUEST_TYPE	RequestType,
		IN UCHAR	Request,
		IN USHORT	RequestValue,
		IN USHORT	RequestIndex
	)

Definition at line 370 of file usbhub.c.

{
    struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST * Urb;
    ULONG TransferFlags;
    PVOID Buffer = NULL;
    ULONG Length;
    NTSTATUS Status;
 
    DPRINT("USBH_Transact: ... \n");
 
    if (BufferLen)
    {
        Length = ALIGN_DOWN_BY(BufferLen + sizeof(ULONG), sizeof(ULONG));
 
        Buffer = ExAllocatePoolWithTag(NonPagedPool, Length, USB_HUB_TAG);
 
        if (!Buffer)
        {
            return STATUS_INSUFFICIENT_RESOURCES;
        }
 
        RtlZeroMemory(Buffer, Length);
    }
 
    Urb = ExAllocatePoolWithTag(NonPagedPool,
                                sizeof(struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST),
                                USB_HUB_TAG);
 
    if (!Urb)
    {
        if (Buffer)
        {
            ExFreePoolWithTag(Buffer, USB_HUB_TAG);
        }
 
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    RtlZeroMemory(Urb, sizeof(struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST));
 
    if (IsDeviceToHost)
    {
        if (BufferLen)
        {
            RtlZeroMemory(TransferBuffer, BufferLen);
        }
 
        TransferFlags = USBD_TRANSFER_DIRECTION_IN | USBD_SHORT_TRANSFER_OK;
    }
    else
    {
        if (BufferLen)
        {
            RtlCopyMemory(Buffer, TransferBuffer, BufferLen);
        }
 
        TransferFlags = USBD_TRANSFER_DIRECTION_OUT;
    }
 
    Urb->Hdr.Length = sizeof(struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST);
    Urb->Hdr.Function = Function;
    Urb->Hdr.UsbdDeviceHandle = NULL;
 
    Urb->TransferFlags = TransferFlags;
    Urb->TransferBuffer = BufferLen != 0 ? Buffer : NULL;
    Urb->TransferBufferLength = BufferLen;
    Urb->TransferBufferMDL = NULL;
    Urb->UrbLink = NULL;
 
    Urb->RequestTypeReservedBits = RequestType.B;
    Urb->Request = Request;
    Urb->Value = RequestValue;
    Urb->Index = RequestIndex;
 
    Status = USBH_FdoSyncSubmitUrb(HubExtension->Common.SelfDevice, (PURB)Urb);
 
    if (IsDeviceToHost && BufferLen)
    {
        RtlCopyMemory(TransferBuffer, Buffer, BufferLen);
    }
 
    if (Buffer)
    {
        ExFreePoolWithTag(Buffer, USB_HUB_TAG);
    }
 
    ExFreePoolWithTag(Urb, USB_HUB_TAG);
 
    return Status;
}

Referenced by USBH_SyncClearHubStatus(), USBH_SyncClearPortStatus(), USBH_SyncDisablePort(), USBH_SyncGetHubDescriptor(), USBH_SyncGetHubStatus(), USBH_SyncGetPortStatus(), USBH_SyncPowerOnPort(), and USBH_SyncResetPort().

USBH_UrbTimeoutDPC()

VOID NTAPI USBH_UrbTimeoutDPC	(	IN PKDPC	Dpc,
		IN PVOID	DeferredContext,
		IN PVOID	SystemArgument1,
		IN PVOID	SystemArgument2
	)

Definition at line 184 of file usbhub.c.

{
    PUSBHUB_URB_TIMEOUT_CONTEXT HubTimeoutContext;
    KIRQL OldIrql;
    BOOL IsCompleted;
 
    DPRINT("USBH_TimeoutDPC ... \n");
 
    HubTimeoutContext = DeferredContext;
 
    KeAcquireSpinLock(&HubTimeoutContext->UrbTimeoutSpinLock, &OldIrql);
    IsCompleted = HubTimeoutContext->IsNormalCompleted;
    KeReleaseSpinLock(&HubTimeoutContext->UrbTimeoutSpinLock, OldIrql);
 
    if (!IsCompleted)
    {
        IoCancelIrp(HubTimeoutContext->Irp);
    }
 
    KeSetEvent(&HubTimeoutContext->UrbTimeoutEvent,
               EVENT_INCREMENT,
               FALSE);
}

Referenced by USBH_SyncSubmitUrb().

USBH_ValidateSerialNumberString()

BOOLEAN NTAPI USBH_ValidateSerialNumberString

(

IN PUSHORT

SerialNumberString

)

Definition at line 4219 of file usbhub.c.

{
    USHORT ix;
    USHORT Symbol;
 
    DPRINT("USBH_ValidateSerialNumberString: ... \n");
 
    for (ix = 0; SerialNumberString[ix] != UNICODE_NULL; ix++)
    {
        Symbol = SerialNumberString[ix];
 
        if (Symbol < 0x20 || Symbol > 0x7F || Symbol == 0x2C) // ','
        {
            return FALSE;
        }
    }
 
    return TRUE;
}

Referenced by USBH_CreateDevice().

USBH_Wait()

NTSTATUS NTAPI USBH_Wait

(

IN ULONG

Milliseconds

)

Definition at line 23 of file usbhub.c.

{
    LARGE_INTEGER Interval;
 
    DPRINT("USBH_Wait: Milliseconds - %x\n", Milliseconds);
    Interval.QuadPart = -10000LL * Milliseconds - ((ULONGLONG)KeQueryTimeIncrement() - 1);
    return KeDelayExecutionThread(KernelMode, FALSE, &Interval);
}

Referenced by USBH_CreateDevice(), USBH_FdoQueryBusRelations(), USBH_HubSetD0(), USBH_ResetDevice(), USBH_RestoreDevice(), USBH_SyncPowerOnPort(), USBH_SyncPowerOnPorts(), and USBH_SyncResetPort().

USBH_Worker()

VOID NTAPI USBH_Worker	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PVOID	Context
	)

Definition at line 2872 of file usbhub.c.

{
    PUSBHUB_IO_WORK_ITEM HubIoWorkItem;
    PUSBHUB_FDO_EXTENSION HubExtension;
    KIRQL OldIrql;
    PIO_WORKITEM WorkItem;
 
    DPRINT("USBH_Worker: HubIoWorkItem - %p\n", Context);
 
    HubIoWorkItem = Context;
 
    InterlockedDecrement(&HubIoWorkItem->HubWorkerQueued);
 
    HubExtension = HubIoWorkItem->HubExtension;
    WorkItem = HubIoWorkItem->HubWorkItem;
 
    HubIoWorkItem->HubWorkerRoutine(HubIoWorkItem->HubExtension,
                                    HubIoWorkItem->HubWorkItemBuffer);
 
    KeAcquireSpinLock(&HubExtension->WorkItemSpinLock, &OldIrql);
    RemoveEntryList(&HubIoWorkItem->HubWorkItemLink);
    KeReleaseSpinLock(&HubExtension->WorkItemSpinLock, OldIrql);
 
    if (HubIoWorkItem->HubWorkItemBuffer)
    {
        ExFreePoolWithTag(HubIoWorkItem->HubWorkItemBuffer, USB_HUB_TAG);
    }
 
    ExFreePoolWithTag(HubIoWorkItem, USB_HUB_TAG);
 
    if (!InterlockedDecrement(&HubExtension->PendingRequestCount))
    {
        KeSetEvent(&HubExtension->PendingRequestEvent,
                   EVENT_INCREMENT,
                   FALSE);
    }
 
    IoFreeWorkItem(WorkItem);
 
    DPRINT("USBH_Worker: HubIoWorkItem %p complete\n", Context);
}

Referenced by USBH_QueueWorkItem().

USBH_WriteFailReasonID()

NTSTATUS NTAPI USBH_WriteFailReasonID	(	IN PDEVICE_OBJECT	DeviceObject,
		IN ULONG	FailReason
	)

Definition at line 153 of file usbhub.c.

{
    NTSTATUS Status;
    HANDLE KeyHandle;
    UNICODE_STRING ValueName = RTL_CONSTANT_STRING(L"FailReasonID");
 
    DPRINT("USBH_WriteFailReason: ID - %x\n", FailReason);
 
    Status = IoOpenDeviceRegistryKey(DeviceObject,
                                     PLUGPLAY_REGKEY_DEVICE,
                                     STANDARD_RIGHTS_ALL,
                                     &KeyHandle);
 
    if (NT_SUCCESS(Status))
    {
        ZwSetValueKey(KeyHandle,
                      &ValueName,
                      0,
                      REG_DWORD,
                      &FailReason,
                      sizeof(FailReason));
 
        ZwClose(KeyHandle);
    }
 
    return Status;
}

Referenced by USBH_StartHubFdoDevice().

USBHUB_FlushAllTransfers()

VOID NTAPI USBHUB_FlushAllTransfers

(

IN PUSBHUB_FDO_EXTENSION

HubExtension

)

Definition at line 2623 of file usbhub.c.

{
    PUSB_BUSIFFN_FLUSH_TRANSFERS FlushTransfers;
 
    DPRINT("USBHUB_FlushAllTransfers ... \n");
 
    FlushTransfers = HubExtension->BusInterface.FlushTransfers;
 
    if (FlushTransfers)
    {
        FlushTransfers(HubExtension->BusInterface.BusContext, NULL);
    }
}

Referenced by USBH_PdoRemoveDevice().

USBHUB_GetExtendedHubInfo()

NTSTATUS NTAPI USBHUB_GetExtendedHubInfo	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PUSB_EXTHUB_INFORMATION_0	HubInfoBuffer
	)

Definition at line 680 of file usbhub.c.

{
    PUSB_BUSIFFN_GET_EXTENDED_HUB_INFO GetExtendedHubInformation;
    ULONG dummy = 0;
 
    DPRINT("USBHUB_GetExtendedHubInfo: ... \n");
 
    GetExtendedHubInformation = HubExtension->BusInterface.GetExtendedHubInformation;
 
    return GetExtendedHubInformation(HubExtension->BusInterface.BusContext,
                                     HubExtension->LowerPDO,
                                     HubInfoBuffer,
                                     sizeof(USB_EXTHUB_INFORMATION_0),
                                     &dummy);
}

Referenced by USBH_SyncGetHubDescriptor().

USBHUB_RootHubCallBack()

VOID NTAPI USBHUB_RootHubCallBack

(

IN PVOID

Context

)

Definition at line 2957 of file usbhub.c.

{
    PUSBHUB_FDO_EXTENSION HubExtension;
 
    DPRINT("USBHUB_RootHubCallBack: ... \n");
 
    HubExtension = Context;
 
    if (HubExtension->SCEIrp)
    {
        HubExtension->HubFlags |= (USBHUB_FDO_FLAG_DO_ENUMERATION |
                                   USBHUB_FDO_FLAG_NOT_ENUMERATED);
 
        USBH_SubmitStatusChangeTransfer(HubExtension);
 
        IoInvalidateDeviceRelations(HubExtension->LowerPDO, BusRelations);
    }
    else
    {
        HubExtension->HubFlags |= USBHUB_FDO_FLAG_DO_ENUMERATION;
    }
 
    KeSetEvent(&HubExtension->RootHubNotificationEvent,
               EVENT_INCREMENT,
               FALSE);
}

Referenced by USBD_RegisterRootHubCallBack().

USBHUB_SetDeviceHandleData()

VOID NTAPI USBHUB_SetDeviceHandleData	(	IN PUSBHUB_FDO_EXTENSION	HubExtension,
		IN PDEVICE_OBJECT	UsbDevicePdo,
		IN PVOID	DeviceHandle
	)

Definition at line 2601 of file usbhub.c.

{
    PUSB_BUSIFFN_SET_DEVHANDLE_DATA SetDeviceHandleData;
 
    DPRINT("USBHUB_SetDeviceHandleData ... \n");
 
    SetDeviceHandleData = HubExtension->BusInterface.SetDeviceHandleData;
 
    if (!SetDeviceHandleData)
    {
        return;
    }
 
    SetDeviceHandleData(HubExtension->BusInterface.BusContext,
                        DeviceHandle,
                        UsbDevicePdo);
}

Referenced by USBH_PdoStartDevice().

Variable Documentation

GenericUSBDeviceString

PWSTR GenericUSBDeviceString = NULL

Definition at line 19 of file usbhub.c.

Referenced by DriverEntry(), USBH_DriverUnload(), and USBH_PdoQueryDeviceText().