reactos/drivers/usb/usbhub/usbhub.c
Cameron Gutman c2d0d784c7 [USB-BRINGUP-TRUNK]
- Create a branch to do a proper merge of USB work from a trunk base instead of from cmake-bringup
- In the future, DO NOT under any circumstances branch another branch. This leads to merge problems!

svn path=/branches/usb-bringup-trunk/; revision=55018
2012-01-20 20:58:46 +00:00

160 lines
4.8 KiB
C
Raw Blame History

/*
* ReactOS USB hub driver
* Copyright (C) 2004 Aleksey Bragin
* (C) 2005 Mark Tempel
* (C) 2005 Herv<72> Poussineau
* (C) 2010 Michael Martin
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
/* INCLUDES *******************************************************************/
//#define NDEBUG
#include "usbhub.h"
/* PUBLIC AND PRIVATE FUNCTIONS ***********************************************/
NTSTATUS NTAPI
UsbhubAddDevice(
IN PDRIVER_OBJECT DriverObject,
IN PDEVICE_OBJECT Pdo)
{
PDEVICE_OBJECT Fdo;
PHUB_DEVICE_EXTENSION DeviceExtension;
NTSTATUS Status;
Status = IoCreateDevice(DriverObject,
sizeof(HUB_DEVICE_EXTENSION),
NULL, /* DeviceName */
FILE_DEVICE_BUS_EXTENDER,
FILE_AUTOGENERATED_DEVICE_NAME,
FALSE,
&Fdo);
if (!NT_SUCCESS(Status))
{
DPRINT1("Usbhub: IoCreateDevice() failed with status 0x%08lx\n", Status);
return Status;
}
// zerofill device extension
DeviceExtension = (PHUB_DEVICE_EXTENSION)Fdo->DeviceExtension;
RtlZeroMemory(DeviceExtension, sizeof(HUB_DEVICE_EXTENSION));
DeviceExtension->IsFDO = TRUE;
Fdo->Flags |= DO_POWER_PAGABLE;
//Status = IoAttachDeviceToDeviceStackSafe(Fdo, Pdo, &DeviceExtension->LowerDevice);
DeviceExtension->LowerDevice = IoAttachDeviceToDeviceStack(Fdo, Pdo);
if (!NT_SUCCESS(Status))
{
DPRINT("Usbhub: IoAttachDeviceToDeviceStackSafe() failed with status 0x%08lx\n", Status);
IoDeleteDevice(Fdo);
return Status;
}
Fdo->Flags |= DO_BUFFERED_IO;
Fdo->Flags &= ~DO_DEVICE_INITIALIZING;
return STATUS_SUCCESS;
}
static NTSTATUS NTAPI
IrpStub(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
NTSTATUS Status;
if (((PHUB_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->IsFDO)
{
DPRINT1("Usbhub: FDO stub for major function 0x%lx\n",
IoGetCurrentIrpStackLocation(Irp)->MajorFunction);
return ForwardIrpAndForget(DeviceObject, Irp);
}
else
{
/* We can't forward request to the lower driver, because
* we are a Pdo, so we don't have lower driver...
*/
DPRINT1("Usbhub: PDO stub for major function 0x%lx\n",
IoGetCurrentIrpStackLocation(Irp)->MajorFunction);
#ifndef NDEBUG
DbgBreakPoint();
#endif
}
Status = Irp->IoStatus.Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
static NTSTATUS NTAPI
DispatchDeviceControl(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("Usbhub: DispatchDeviceControl\n");
if (((PHUB_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->IsFDO)
return UsbhubDeviceControlFdo(DeviceObject, Irp);
else
return IrpStub(DeviceObject, Irp);
}
static NTSTATUS NTAPI
DispatchInternalDeviceControl(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("Usbhub: DispatchInternalDeviceControl\n");
if (((PHUB_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->IsFDO)
return IrpStub(DeviceObject, Irp);
else
return UsbhubInternalDeviceControlPdo(DeviceObject, Irp);
}
static NTSTATUS NTAPI
DispatchPnp(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("Usbhub: DispatchPnp\n");
if (((PHUB_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->IsFDO)
return UsbhubPnpFdo(DeviceObject, Irp);
else
return UsbhubPnpPdo(DeviceObject, Irp);
}
/*
* Standard DriverEntry method.
*/
NTSTATUS NTAPI
DriverEntry(
IN PDRIVER_OBJECT DriverObject,
IN PUNICODE_STRING RegistryPath)
{
ULONG i;
DriverObject->DriverExtension->AddDevice = UsbhubAddDevice;
DPRINT1("Usbhub: DriverEntry\n");
for (i = 0; i <= IRP_MJ_MAXIMUM_FUNCTION; i++)
DriverObject->MajorFunction[i] = IrpStub;
DriverObject->MajorFunction[IRP_MJ_CREATE] = UsbhubCreate;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = UsbhubClose;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = UsbhubCleanup;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = DispatchDeviceControl;
DriverObject->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = DispatchInternalDeviceControl;
DriverObject->MajorFunction[IRP_MJ_PNP] = DispatchPnp;
return STATUS_SUCCESS;
}