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