+++ /dev/null
-/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS Serial enumerator driver
- * FILE: drivers/bus/serenum/fdo.c
- * PURPOSE: IRP_MJ_PNP operations for FDOs
- *
- * PROGRAMMERS: Hervé Poussineau (hpoussin@reactos.org)
- */
-
-#include "serenum.h"
-
-#include <debug.h>
-
-NTSTATUS NTAPI
-SerenumAddDevice(
- IN PDRIVER_OBJECT DriverObject,
- IN PDEVICE_OBJECT Pdo)
-{
- PDEVICE_OBJECT Fdo;
- PFDO_DEVICE_EXTENSION DeviceExtension;
- NTSTATUS Status;
-
- TRACE_(SERENUM, "SerenumAddDevice called. Pdo = %p\n", Pdo);
-
- /* Create new device object */
- Status = IoCreateDevice(DriverObject,
- sizeof(FDO_DEVICE_EXTENSION),
- NULL,
- FILE_DEVICE_BUS_EXTENDER,
- FILE_DEVICE_SECURE_OPEN,
- FALSE,
- &Fdo);
- if (!NT_SUCCESS(Status))
- {
- WARN_(SERENUM, "IoCreateDevice() failed with status 0x%08lx\n", Status);
- return Status;
- }
- DeviceExtension = (PFDO_DEVICE_EXTENSION)Fdo->DeviceExtension;
- RtlZeroMemory(DeviceExtension, sizeof(FDO_DEVICE_EXTENSION));
-
- /* Register device interface */
- Status = IoRegisterDeviceInterface(
- Pdo,
- &GUID_DEVINTERFACE_SERENUM_BUS_ENUMERATOR,
- NULL,
- &DeviceExtension->SerenumInterfaceName);
- if (!NT_SUCCESS(Status))
- {
- WARN_(SERENUM, "IoRegisterDeviceInterface() failed with status 0x%08lx\n", Status);
- IoDeleteDevice(Fdo);
- return Status;
- }
-
- DeviceExtension->Common.IsFDO = TRUE;
- DeviceExtension->Common.PnpState = dsStopped;
- DeviceExtension->Pdo = Pdo;
- IoInitializeRemoveLock(&DeviceExtension->RemoveLock, SERENUM_TAG, 0, 0);
- Status = IoAttachDeviceToDeviceStackSafe(Fdo, Pdo, &DeviceExtension->LowerDevice);
- if (!NT_SUCCESS(Status))
- {
- WARN_(SERENUM, "IoAttachDeviceToDeviceStackSafe() failed with status 0x%08lx\n", Status);
- IoDeleteDevice(Fdo);
- return Status;
- }
- if (DeviceExtension->LowerDevice->Flags & DO_POWER_PAGABLE)
- Fdo->Flags |= DO_POWER_PAGABLE;
- if (DeviceExtension->LowerDevice->Flags & DO_BUFFERED_IO)
- Fdo->Flags |= DO_BUFFERED_IO;
- if (DeviceExtension->LowerDevice->Flags & DO_DIRECT_IO)
- Fdo->Flags |= DO_DIRECT_IO;
- Fdo->Flags &= ~DO_DEVICE_INITIALIZING;
-
- return STATUS_SUCCESS;
-}
-
-static NTSTATUS NTAPI
-SerenumFdoStartDevice(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- PFDO_DEVICE_EXTENSION DeviceExtension;
- NTSTATUS Status;
-
- TRACE_(SERENUM, "SerenumFdoStartDevice() called\n");
- DeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
-
- ASSERT(DeviceExtension->Common.PnpState == dsStopped);
-
- Status = IoSetDeviceInterfaceState(&DeviceExtension->SerenumInterfaceName, TRUE);
- if (!NT_SUCCESS(Status))
- {
- WARN_(SERENUM, "IoSetDeviceInterfaceState() failed with status 0x%08lx\n", Status);
- return Status;
- }
-
- DeviceExtension->Common.PnpState = dsStarted;
-
- return STATUS_SUCCESS;
-}
-
-static NTSTATUS
-SerenumFdoQueryBusRelations(
- IN PDEVICE_OBJECT DeviceObject,
- OUT PDEVICE_RELATIONS* pDeviceRelations)
-{
- PFDO_DEVICE_EXTENSION DeviceExtension;
- PDEVICE_RELATIONS DeviceRelations;
- ULONG NumPDO;
- ULONG i;
- NTSTATUS Status = STATUS_SUCCESS;
-
- DeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
- ASSERT(DeviceExtension->Common.IsFDO);
-
- /* Do enumeration if needed */
- if (!(DeviceExtension->Flags & FLAG_ENUMERATION_DONE))
- {
- ASSERT(DeviceExtension->AttachedPdo == NULL);
- /* Detect plug-and-play devices */
- Status = SerenumDetectPnpDevice(DeviceObject, DeviceExtension->LowerDevice);
- if (Status == STATUS_DEVICE_NOT_CONNECTED)
- {
- /* Detect legacy devices */
- Status = SerenumDetectLegacyDevice(DeviceObject, DeviceExtension->LowerDevice);
- if (Status == STATUS_DEVICE_NOT_CONNECTED)
- Status = STATUS_SUCCESS;
- }
- DeviceExtension->Flags |= FLAG_ENUMERATION_DONE;
- }
- NumPDO = (DeviceExtension->AttachedPdo != NULL ? 1 : 0);
-
- DeviceRelations = (PDEVICE_RELATIONS)ExAllocatePoolWithTag(
- PagedPool,
- sizeof(DEVICE_RELATIONS) + sizeof(PDEVICE_OBJECT) * (NumPDO - 1),
- SERENUM_TAG);
- if (!DeviceRelations)
- return STATUS_INSUFFICIENT_RESOURCES;
-
- /* Fill returned structure */
- DeviceRelations->Count = NumPDO;
- for (i = 0; i < NumPDO; i++)
- {
- ObReferenceObject(DeviceExtension->AttachedPdo);
- DeviceRelations->Objects[i] = DeviceExtension->AttachedPdo;
- }
-
- *pDeviceRelations = DeviceRelations;
- return Status;
-}
-
-NTSTATUS
-SerenumFdoPnp(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- ULONG MinorFunction;
- PIO_STACK_LOCATION Stack;
- ULONG_PTR Information = 0;
- NTSTATUS Status;
-
- Stack = IoGetCurrentIrpStackLocation(Irp);
- MinorFunction = Stack->MinorFunction;
-
- switch (MinorFunction)
- {
- /* FIXME: do all these minor functions
- IRP_MN_QUERY_REMOVE_DEVICE 0x1
- IRP_MN_REMOVE_DEVICE 0x2
- IRP_MN_CANCEL_REMOVE_DEVICE 0x3
- IRP_MN_STOP_DEVICE 0x4
- IRP_MN_QUERY_STOP_DEVICE 0x5
- IRP_MN_CANCEL_STOP_DEVICE 0x6
- IRP_MN_QUERY_DEVICE_RELATIONS / RemovalRelations (optional) 0x7
- IRP_MN_QUERY_INTERFACE (optional) 0x8
- IRP_MN_QUERY_CAPABILITIES (optional) 0x9
- IRP_MN_QUERY_PNP_DEVICE_STATE (optional) 0x14
- IRP_MN_DEVICE_USAGE_NOTIFICATION (required or optional) 0x16
- IRP_MN_SURPRISE_REMOVAL 0x17
- */
- case IRP_MN_START_DEVICE: /* 0x0 */
- {
- TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_START_DEVICE\n");
- /* Call lower driver */
- Status = ForwardIrpAndWait(DeviceObject, Irp);
- if (NT_SUCCESS(Status))
- Status = SerenumFdoStartDevice(DeviceObject, Irp);
- break;
- }
- case IRP_MN_QUERY_DEVICE_RELATIONS: /* 0x7 */
- {
- switch (Stack->Parameters.QueryDeviceRelations.Type)
- {
- case BusRelations:
- {
- PDEVICE_RELATIONS DeviceRelations = NULL;
- TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_DEVICE_RELATIONS / BusRelations\n");
- Status = SerenumFdoQueryBusRelations(DeviceObject, &DeviceRelations);
- Information = (ULONG_PTR)DeviceRelations;
- break;
- }
- default:
- TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_QUERY_DEVICE_RELATIONS / Unknown type 0x%lx\n",
- Stack->Parameters.QueryDeviceRelations.Type);
- return ForwardIrpAndForget(DeviceObject, Irp);
- }
- break;
- }
- case IRP_MN_FILTER_RESOURCE_REQUIREMENTS: /* 0xd */
- {
- TRACE_(SERENUM, "IRP_MJ_PNP / IRP_MN_FILTER_RESOURCE_REQUIREMENTS\n");
- return ForwardIrpAndForget(DeviceObject, Irp);
- }
- default:
- {
- TRACE_(SERENUM, "IRP_MJ_PNP / unknown minor function 0x%lx\n", MinorFunction);
- return ForwardIrpAndForget(DeviceObject, Irp);
- }
- }
-
- Irp->IoStatus.Information = Information;
- Irp->IoStatus.Status = Status;
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
- return Status;
-}
projects / reactos.git / blobdiff