reactos/drivers/usb/usbohci/usbohci.cpp

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/*
* PROJECT: ReactOS Universal Serial Bus Bulk Enhanced Host Controller Interface
* LICENSE: GPL - See COPYING in the top level directory
* FILE: drivers/usb/usbohci/usbohci.cpp
* PURPOSE: USB OHCI device driver.
* PROGRAMMERS:
* Michael Martin (michael.martin@reactos.org)
* Johannes Anderwald (johannes.anderwald@reactos.org)
*/
#include "usbohci.h"
//
// driver verifier
//
DRIVER_ADD_DEVICE OHCI_AddDevice;
NTSTATUS
NTAPI
OHCI_AddDevice(
PDRIVER_OBJECT DriverObject,
PDEVICE_OBJECT PhysicalDeviceObject)
{
NTSTATUS Status;
PHCDCONTROLLER HcdController;
DPRINT1("OHCI_AddDevice\n");
/* first create the controller object */
Status = CreateHCDController(&HcdController);
if (!NT_SUCCESS(Status))
{
/* failed to create hcd */
DPRINT1("AddDevice: Failed to create hcd with %x\n", Status);
return Status;
}
/* initialize the hcd */
Status = HcdController->Initialize(NULL, // FIXME
DriverObject,
PhysicalDeviceObject);
/* check for success */
if (!NT_SUCCESS(Status))
{
/* failed to initialize device */
DPRINT1("AddDevice: failed to initialize\n");
/* release object */
HcdController->Release();
}
return Status;
}
NTSTATUS
NTAPI
OHCI_Dispatch(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PCOMMON_DEVICE_EXTENSION DeviceExtension;
PIO_STACK_LOCATION IoStack;
NTSTATUS Status;
//
// get common device extension
//
DeviceExtension = (PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
//
// get current stack location
//
IoStack = IoGetCurrentIrpStackLocation(Irp);
//
// sanity checks
//
PC_ASSERT(DeviceExtension->Dispatcher);
switch(IoStack->MajorFunction)
{
case IRP_MJ_PNP:
{
//
// dispatch pnp
//
return DeviceExtension->Dispatcher->HandlePnp(DeviceObject, Irp);
}
case IRP_MJ_POWER:
{
//
// dispatch pnp
//
return DeviceExtension->Dispatcher->HandlePower(DeviceObject, Irp);
}
case IRP_MJ_INTERNAL_DEVICE_CONTROL:
case IRP_MJ_DEVICE_CONTROL:
{
//
// dispatch pnp
//
return DeviceExtension->Dispatcher->HandleDeviceControl(DeviceObject, Irp);
}
default:
{
DPRINT1("OHCI_Dispatch> Major %lu Minor %lu unhandeled\n", IoStack->MajorFunction, IoStack->MinorFunction);
Status = STATUS_SUCCESS;
}
}
//
// complete request
//
Irp->IoStatus.Information = 0;
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
extern
"C"
NTSTATUS
NTAPI
DriverEntry(
PDRIVER_OBJECT DriverObject,
PUNICODE_STRING RegistryPath)
{
/* initialize driver object*/
DriverObject->DriverExtension->AddDevice = OHCI_AddDevice;
DriverObject->MajorFunction[IRP_MJ_CREATE] = OHCI_Dispatch;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = OHCI_Dispatch;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = OHCI_Dispatch;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = OHCI_Dispatch;
DriverObject->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = OHCI_Dispatch;
DriverObject->MajorFunction[IRP_MJ_PNP] = OHCI_Dispatch;
return STATUS_SUCCESS;
}