reactos/drivers/usb/usbccgp/usbccgp.c

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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/usbccgp/usbccgp.c
* PURPOSE: USB device driver.
* PROGRAMMERS:
* Michael Martin (michael.martin@reactos.org)
* Johannes Anderwald (johannes.anderwald@reactos.org)
* Cameron Gutman
*/
#include "usbccgp.h"
#define NDEBUG
#include <debug.h>
/* Driver verifier */
DRIVER_ADD_DEVICE USBCCGP_AddDevice;
NTSTATUS
NTAPI
USBCCGP_AddDevice(
PDRIVER_OBJECT DriverObject,
PDEVICE_OBJECT PhysicalDeviceObject)
{
NTSTATUS Status;
PDEVICE_OBJECT DeviceObject;
PFDO_DEVICE_EXTENSION FDODeviceExtension;
/* Lets create the device */
Status = IoCreateDevice(DriverObject,
sizeof(FDO_DEVICE_EXTENSION),
NULL,
FILE_DEVICE_USB,
FILE_AUTOGENERATED_DEVICE_NAME,
FALSE,
&DeviceObject);
if (!NT_SUCCESS(Status))
{
/* Failed to create device */
DPRINT1("USBCCGP_AddDevice failed to create device with %x\n", Status);
return Status;
}
/* Get device extension */
FDODeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* Init device extension */
RtlZeroMemory(FDODeviceExtension, sizeof(FDO_DEVICE_EXTENSION));
FDODeviceExtension->Common.IsFDO = TRUE;
FDODeviceExtension->DriverObject = DriverObject;
FDODeviceExtension->PhysicalDeviceObject = PhysicalDeviceObject;
InitializeListHead(&FDODeviceExtension->ResetPortListHead);
InitializeListHead(&FDODeviceExtension->CyclePortListHead);
KeInitializeSpinLock(&FDODeviceExtension->Lock);
FDODeviceExtension->NextDeviceObject = IoAttachDeviceToDeviceStack(DeviceObject,
PhysicalDeviceObject);
if (!FDODeviceExtension->NextDeviceObject)
{
/* Failed to attach */
DPRINT1("USBCCGP_AddDevice failed to attach device\n");
IoDeleteDevice(DeviceObject);
return STATUS_DEVICE_REMOVED;
}
/* Set device flags */
DeviceObject->Flags |= DO_BUFFERED_IO | DO_POWER_PAGABLE;
/* Device is initialized */
DeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
/* Device initialized */
return Status;
}
NTSTATUS
NTAPI
USBCCGP_CreateClose(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PCOMMON_DEVICE_EXTENSION DeviceExtension;
PFDO_DEVICE_EXTENSION FDODeviceExtension;
/* Get common device extension */
DeviceExtension = (PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* Is it a fdo */
if (DeviceExtension->IsFDO)
{
/* Forward and forget */
IoSkipCurrentIrpStackLocation(Irp);
/* Get fdo */
FDODeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* Call lower driver */
return IoCallDriver(FDODeviceExtension->NextDeviceObject, Irp);
}
else
{
/* Pdo not supported */
Irp->IoStatus.Status = STATUS_NOT_SUPPORTED;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_NOT_SUPPORTED;
}
}
NTSTATUS
NTAPI
USBCCGP_Dispatch(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PCOMMON_DEVICE_EXTENSION DeviceExtension;
PIO_STACK_LOCATION IoStack;
/* Get common device extension */
DeviceExtension = (PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* Get current stack location */
IoStack = IoGetCurrentIrpStackLocation(Irp);
if (IoStack->MajorFunction == IRP_MJ_CREATE || IoStack->MajorFunction == IRP_MJ_CLOSE)
{
/* Dispatch to default handler */
return USBCCGP_CreateClose(DeviceObject, Irp);
}
if (DeviceExtension->IsFDO)
{
/* Handle request for FDO */
return FDO_Dispatch(DeviceObject, Irp);
}
else
{
/* Handle request for PDO */
return PDO_Dispatch(DeviceObject, Irp);
}
}
VOID
NTAPI
USBCCGP_Unload(PDRIVER_OBJECT DriverObject)
{
DPRINT("[USBCCGP] Unload\n");
}
NTSTATUS
NTAPI
DriverEntry(
PDRIVER_OBJECT DriverObject,
PUNICODE_STRING RegistryPath)
{
/* Initialize driver object */
DPRINT("[USBCCGP] DriverEntry\n");
DriverObject->DriverExtension->AddDevice = USBCCGP_AddDevice;
DriverObject->MajorFunction[IRP_MJ_CREATE] = USBCCGP_Dispatch;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = USBCCGP_Dispatch;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = USBCCGP_Dispatch;
DriverObject->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = USBCCGP_Dispatch;
DriverObject->MajorFunction[IRP_MJ_POWER] = USBCCGP_Dispatch;
DriverObject->MajorFunction[IRP_MJ_PNP] = USBCCGP_Dispatch;
DriverObject->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = USBCCGP_Dispatch;
DriverObject->DriverUnload = USBCCGP_Unload;
/* FIMXE query GenericCompositeUSBDeviceString */
return STATUS_SUCCESS;
}