reactos/hal/halx86/acpi/halpnpdd.c
2013-06-16 22:01:41 +00:00

902 lines
28 KiB
C

/*
* PROJECT: ReactOS HAL
* LICENSE: BSD - See COPYING.ARM in the top level directory
* FILE: hal/halx86/generic/acpi/halpnpdd.c
* PURPOSE: HAL Plug and Play Device Driver
* PROGRAMMERS: ReactOS Portable Systems Group
*/
/* INCLUDES *******************************************************************/
#include <hal.h>
#define NDEBUG
#include <debug.h>
typedef enum _EXTENSION_TYPE
{
PdoExtensionType = 0xC0,
FdoExtensionType
} EXTENSION_TYPE;
typedef enum _PDO_TYPE
{
AcpiPdo = 0x80,
WdPdo
} PDO_TYPE;
typedef struct _FDO_EXTENSION
{
EXTENSION_TYPE ExtensionType;
struct _PDO_EXTENSION* ChildPdoList;
PDEVICE_OBJECT PhysicalDeviceObject;
PDEVICE_OBJECT FunctionalDeviceObject;
PDEVICE_OBJECT AttachedDeviceObject;
} FDO_EXTENSION, *PFDO_EXTENSION;
typedef struct _PDO_EXTENSION
{
EXTENSION_TYPE ExtensionType;
struct _PDO_EXTENSION* Next;
PDEVICE_OBJECT PhysicalDeviceObject;
PFDO_EXTENSION ParentFdoExtension;
PDO_TYPE PdoType;
PDESCRIPTION_HEADER WdTable;
LONG InterfaceReferenceCount;
} PDO_EXTENSION, *PPDO_EXTENSION;
/* GLOBALS ********************************************************************/
PDRIVER_OBJECT HalpDriverObject;
/* PRIVATE FUNCTIONS **********************************************************/
VOID
NTAPI
HalpReportDetectedDevices(IN PDRIVER_OBJECT DriverObject,
IN PVOID Context,
IN ULONG Count)
{
PFDO_EXTENSION FdoExtension = Context;
PPDO_EXTENSION PdoExtension;
PDEVICE_OBJECT PdoDeviceObject;
PDESCRIPTION_HEADER Wdrt;
NTSTATUS Status;
/* Create the PDO */
Status = IoCreateDevice(DriverObject,
sizeof(PDO_EXTENSION),
NULL,
FILE_DEVICE_BUS_EXTENDER,
FILE_AUTOGENERATED_DEVICE_NAME,
FALSE,
&PdoDeviceObject);
if (!NT_SUCCESS(Status))
{
/* Fail */
DPRINT1("HAL: Could not create ACPI device object status=0x%08x\n", Status);
return;
}
/* Setup the PDO device extension */
PdoExtension = PdoDeviceObject->DeviceExtension;
PdoExtension->ExtensionType = PdoExtensionType;
PdoExtension->PhysicalDeviceObject = PdoDeviceObject;
PdoExtension->ParentFdoExtension = FdoExtension;
PdoExtension->PdoType = AcpiPdo;
/* Add the PDO to the head of the list */
PdoExtension->Next = FdoExtension->ChildPdoList;
FdoExtension->ChildPdoList = PdoExtension;
/* Initialization is finished */
PdoDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
/* Find the ACPI watchdog table */
Wdrt = HalAcpiGetTable(0, 'TRDW');
if (Wdrt)
{
/* FIXME: TODO */
DPRINT1("You have an ACPI Watchdog. That's great! You should be proud ;-)\n");
}
/* This will synchronously load the ACPI driver (needed because we're critical for boot) */
IoSynchronousInvalidateDeviceRelations(FdoExtension->PhysicalDeviceObject, BusRelations);
}
NTSTATUS
NTAPI
HalpAddDevice(IN PDRIVER_OBJECT DriverObject,
IN PDEVICE_OBJECT TargetDevice)
{
NTSTATUS Status;
PFDO_EXTENSION FdoExtension;
PDEVICE_OBJECT DeviceObject, AttachedDevice;
DPRINT("HAL: PnP Driver ADD!\n");
/* Create the FDO */
Status = IoCreateDevice(DriverObject,
sizeof(FDO_EXTENSION),
NULL,
FILE_DEVICE_BUS_EXTENDER,
0,
FALSE,
&DeviceObject);
if (!NT_SUCCESS(Status))
{
/* Should not happen */
DbgBreakPoint();
return Status;
}
/* Setup the FDO extension */
FdoExtension = DeviceObject->DeviceExtension;
FdoExtension->ExtensionType = FdoExtensionType;
FdoExtension->PhysicalDeviceObject = TargetDevice;
FdoExtension->FunctionalDeviceObject = DeviceObject;
FdoExtension->ChildPdoList = NULL;
/* FDO is done initializing */
DeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
/* Attach to the physical device object (the bus) */
AttachedDevice = IoAttachDeviceToDeviceStack(DeviceObject, TargetDevice);
if (!AttachedDevice)
{
/* Failed, undo everything */
IoDeleteDevice(DeviceObject);
return STATUS_NO_SUCH_DEVICE;
}
/* Save the attachment */
FdoExtension->AttachedDeviceObject = AttachedDevice;
/* Register for reinitialization to report devices later */
IoRegisterBootDriverReinitialization(DriverObject,
HalpReportDetectedDevices,
FdoExtension);
/* Return status */
DPRINT("Device added %lx\n", Status);
return Status;
}
NTSTATUS
NTAPI
HalpQueryInterface(IN PDEVICE_OBJECT DeviceObject,
IN CONST GUID* InterfaceType,
IN USHORT Version,
IN PVOID InterfaceSpecificData,
IN ULONG InterfaceBufferSize,
IN PINTERFACE Interface,
OUT PULONG Length)
{
UNIMPLEMENTED;
return STATUS_NOT_SUPPORTED;
}
NTSTATUS
NTAPI
HalpQueryDeviceRelations(IN PDEVICE_OBJECT DeviceObject,
IN DEVICE_RELATION_TYPE RelationType,
OUT PDEVICE_RELATIONS* DeviceRelations)
{
EXTENSION_TYPE ExtensionType;
PPDO_EXTENSION PdoExtension;
PFDO_EXTENSION FdoExtension;
PDEVICE_RELATIONS PdoRelations, FdoRelations;
PDEVICE_OBJECT* ObjectEntry;
ULONG i = 0, PdoCount = 0;
/* Get FDO device extension and PDO count */
FdoExtension = DeviceObject->DeviceExtension;
ExtensionType = FdoExtension->ExtensionType;
/* What do they want? */
if (RelationType == BusRelations)
{
/* This better be an FDO */
if (ExtensionType == FdoExtensionType)
{
/* Count how many PDOs we have */
PdoExtension = FdoExtension->ChildPdoList;
while (PdoExtension)
{
/* Next one */
PdoExtension = PdoExtension->Next;
PdoCount++;
}
/* Add the PDOs that already exist in the device relations */
if (*DeviceRelations)
{
PdoCount += (*DeviceRelations)->Count;
}
/* Allocate our structure */
FdoRelations = ExAllocatePoolWithTag(PagedPool,
FIELD_OFFSET(DEVICE_RELATIONS,
Objects) +
sizeof(PDEVICE_OBJECT) * PdoCount,
' laH');
if (!FdoRelations) return STATUS_INSUFFICIENT_RESOURCES;
/* Save our count */
FdoRelations->Count = PdoCount;
/* Query existing relations */
ObjectEntry = FdoRelations->Objects;
if (*DeviceRelations)
{
/* Check if there were any */
if ((*DeviceRelations)->Count)
{
/* Loop them all */
do
{
/* Copy into our structure */
*ObjectEntry++ = (*DeviceRelations)->Objects[i];
}
while (++i < (*DeviceRelations)->Count);
}
/* Free existing structure */
ExFreePool(*DeviceRelations);
}
/* Now check if we have a PDO list */
PdoExtension = FdoExtension->ChildPdoList;
if (PdoExtension)
{
/* Loop the PDOs */
do
{
/* Save our own PDO and reference it */
*ObjectEntry++ = PdoExtension->PhysicalDeviceObject;
ObReferenceObject(PdoExtension->PhysicalDeviceObject);
/* Go to our next PDO */
PdoExtension = PdoExtension->Next;
}
while (PdoExtension);
}
/* Return the new structure */
*DeviceRelations = FdoRelations;
return STATUS_SUCCESS;
}
}
else
{
/* The only other thing we support is a target relation for the PDO */
if ((RelationType == TargetDeviceRelation) &&
(ExtensionType == PdoExtensionType))
{
/* Only one entry */
PdoRelations = ExAllocatePoolWithTag(PagedPool,
sizeof(DEVICE_RELATIONS),
' laH');
if (!PdoRelations) return STATUS_INSUFFICIENT_RESOURCES;
/* Fill it out and reference us */
PdoRelations->Count = 1;
PdoRelations->Objects[0] = DeviceObject;
ObReferenceObject(DeviceObject);
/* Return it */
*DeviceRelations = PdoRelations;
return STATUS_SUCCESS;
}
}
/* We don't support anything else */
return STATUS_NOT_SUPPORTED;
}
NTSTATUS
NTAPI
HalpQueryCapabilities(IN PDEVICE_OBJECT DeviceObject,
OUT PDEVICE_CAPABILITIES Capabilities)
{
//PPDO_EXTENSION PdoExtension;
NTSTATUS Status;
PAGED_CODE();
/* Get the extension and check for valid version */
//PdoExtension = DeviceObject->DeviceExtension;
ASSERT(Capabilities->Version == 1);
if (Capabilities->Version == 1)
{
/* Can't lock or eject us */
Capabilities->LockSupported = FALSE;
Capabilities->EjectSupported = FALSE;
/* Can't remove or dock us */
Capabilities->Removable = FALSE;
Capabilities->DockDevice = FALSE;
/* Can't access us raw */
Capabilities->RawDeviceOK = FALSE;
/* We have a unique ID, and don't bother the user */
Capabilities->UniqueID = TRUE;
Capabilities->SilentInstall = TRUE;
/* Fill out the adress */
Capabilities->Address = InterfaceTypeUndefined;
Capabilities->UINumber = InterfaceTypeUndefined;
/* Fill out latencies */
Capabilities->D1Latency = 0;
Capabilities->D2Latency = 0;
Capabilities->D3Latency = 0;
/* Fill out supported device states */
Capabilities->DeviceState[PowerSystemWorking] = PowerDeviceD0;
Capabilities->DeviceState[PowerSystemHibernate] = PowerDeviceD3;
Capabilities->DeviceState[PowerSystemShutdown] = PowerDeviceD3;
Capabilities->DeviceState[PowerSystemSleeping3] = PowerDeviceD3;
/* Done */
Status = STATUS_SUCCESS;
}
else
{
/* Fail */
Status = STATUS_NOT_SUPPORTED;
}
/* Return status */
return Status;
}
NTSTATUS
NTAPI
HalpQueryResources(IN PDEVICE_OBJECT DeviceObject,
OUT PCM_RESOURCE_LIST *Resources)
{
PPDO_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
NTSTATUS Status;
PCM_RESOURCE_LIST ResourceList;
PIO_RESOURCE_REQUIREMENTS_LIST RequirementsList;
PIO_RESOURCE_DESCRIPTOR Descriptor;
PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDesc;
ULONG i;
PAGED_CODE();
/* Only the ACPI PDO has requirements */
if (DeviceExtension->PdoType == AcpiPdo)
{
/* Query ACPI requirements */
Status = HalpQueryAcpiResourceRequirements(&RequirementsList);
if (!NT_SUCCESS(Status)) return Status;
ASSERT(RequirementsList->AlternativeLists == 1);
/* Allocate the resourcel ist */
ResourceList = ExAllocatePoolWithTag(PagedPool,
sizeof(CM_RESOURCE_LIST),
' laH');
if (!ResourceList )
{
/* Fail, no memory */
Status = STATUS_INSUFFICIENT_RESOURCES;
ExFreePoolWithTag(RequirementsList, ' laH');
return Status;
}
/* Initialize it */
RtlZeroMemory(ResourceList, sizeof(CM_RESOURCE_LIST));
ResourceList->Count = 1;
/* Setup the list fields */
ResourceList->List[0].BusNumber = -1;
ResourceList->List[0].InterfaceType = PNPBus;
ResourceList->List[0].PartialResourceList.Version = 1;
ResourceList->List[0].PartialResourceList.Revision = 1;
ResourceList->List[0].PartialResourceList.Count = 0;
/* Setup the first descriptor */
PartialDesc = ResourceList->List[0].PartialResourceList.PartialDescriptors;
/* Find the requirement descriptor for the SCI */
for (i = 0; i < RequirementsList->List[0].Count; i++)
{
/* Get this descriptor */
Descriptor = &RequirementsList->List[0].Descriptors[i];
if (Descriptor->Type == CmResourceTypeInterrupt)
{
/* Copy requirements descriptor into resource descriptor */
PartialDesc->Type = CmResourceTypeInterrupt;
PartialDesc->ShareDisposition = Descriptor->ShareDisposition;
PartialDesc->Flags = Descriptor->Flags;
ASSERT(Descriptor->u.Interrupt.MinimumVector ==
Descriptor->u.Interrupt.MaximumVector);
PartialDesc->u.Interrupt.Vector = Descriptor->u.Interrupt.MinimumVector;
PartialDesc->u.Interrupt.Level = Descriptor->u.Interrupt.MinimumVector;
PartialDesc->u.Interrupt.Affinity = 0xFFFFFFFF;
ResourceList->List[0].PartialResourceList.Count++;
break;
}
}
/* Return resources and success */
*Resources = ResourceList;
ExFreePoolWithTag(RequirementsList, ' laH');
return STATUS_SUCCESS;
}
else if (DeviceExtension->PdoType == WdPdo)
{
/* Watchdog doesn't */
return STATUS_NOT_SUPPORTED;
}
else
{
/* This shouldn't happen */
return STATUS_UNSUCCESSFUL;
}
}
NTSTATUS
NTAPI
HalpQueryResourceRequirements(IN PDEVICE_OBJECT DeviceObject,
OUT PIO_RESOURCE_REQUIREMENTS_LIST *Requirements)
{
PPDO_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
PAGED_CODE();
/* Only the ACPI PDO has requirements */
if (DeviceExtension->PdoType == AcpiPdo)
{
/* Query ACPI requirements */
return HalpQueryAcpiResourceRequirements(Requirements);
}
else if (DeviceExtension->PdoType == WdPdo)
{
/* Watchdog doesn't */
return STATUS_NOT_SUPPORTED;
}
else
{
/* This shouldn't happen */
return STATUS_UNSUCCESSFUL;
}
}
NTSTATUS
NTAPI
HalpQueryIdPdo(IN PDEVICE_OBJECT DeviceObject,
IN BUS_QUERY_ID_TYPE IdType,
OUT PUSHORT *BusQueryId)
{
PPDO_EXTENSION PdoExtension;
PDO_TYPE PdoType;
PWCHAR CurrentId;
WCHAR Id[100];
NTSTATUS Status;
SIZE_T Length = 0;
PWCHAR Buffer;
/* Get the PDO type */
PdoExtension = DeviceObject->DeviceExtension;
PdoType = PdoExtension->PdoType;
/* What kind of ID is being requested? */
DPRINT("ID: %d\n", IdType);
switch (IdType)
{
case BusQueryDeviceID:
case BusQueryHardwareIDs:
/* What kind of PDO is this? */
if (PdoType == AcpiPdo)
{
/* ACPI ID */
CurrentId = L"ACPI_HAL\\PNP0C08";
RtlCopyMemory(Id, CurrentId, (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL));
Length += (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL);
CurrentId = L"*PNP0C08";
RtlCopyMemory(&Id[wcslen(Id) + 1], CurrentId, (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL));
Length += (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL);
}
else if (PdoType == WdPdo)
{
/* WatchDog ID */
CurrentId = L"ACPI_HAL\\PNP0C18";
RtlCopyMemory(Id, CurrentId, (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL));
Length += (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL);
CurrentId = L"*PNP0C18";
RtlCopyMemory(&Id[wcslen(Id) + 1], CurrentId, (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL));
Length += (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL);
}
else
{
/* Unknown */
return STATUS_NOT_SUPPORTED;
}
break;
case BusQueryInstanceID:
/* Instance ID */
CurrentId = L"0";
RtlCopyMemory(Id, CurrentId, (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL));
Length += (wcslen(CurrentId) * sizeof(WCHAR)) + sizeof(UNICODE_NULL);
break;
case BusQueryCompatibleIDs:
default:
/* We don't support anything else */
return STATUS_NOT_SUPPORTED;
}
/* Allocate the buffer */
Buffer = ExAllocatePoolWithTag(PagedPool,
Length + sizeof(UNICODE_NULL),
' laH');
if (Buffer)
{
/* Copy the string and null-terminate it */
RtlCopyMemory(Buffer, Id, Length);
Buffer[Length / sizeof(WCHAR)] = UNICODE_NULL;
/* Return string */
*BusQueryId = Buffer;
Status = STATUS_SUCCESS;
DPRINT("Returning: %S\n", *BusQueryId);
}
else
{
/* Fail */
Status = STATUS_INSUFFICIENT_RESOURCES;
}
/* Return status */
return Status;
}
NTSTATUS
NTAPI
HalpQueryIdFdo(IN PDEVICE_OBJECT DeviceObject,
IN BUS_QUERY_ID_TYPE IdType,
OUT PUSHORT *BusQueryId)
{
NTSTATUS Status;
SIZE_T Length;
PWCHAR Id;
PWCHAR Buffer;
/* What kind of ID is being requested? */
DPRINT("ID: %d\n", IdType);
switch (IdType)
{
case BusQueryDeviceID:
/* HACK */
Id = L"Root\\ACPI_HAL";
break;
case BusQueryHardwareIDs:
/* This is our hardware ID */
Id = HalHardwareIdString;
break;
case BusQueryInstanceID:
/* And our instance ID */
Id = L"0";
break;
default:
/* We don't support anything else */
return STATUS_NOT_SUPPORTED;
}
/* Calculate the length */
Length = (wcslen(Id) * sizeof(WCHAR)) + sizeof(UNICODE_NULL);
/* Allocate the buffer */
Buffer = ExAllocatePoolWithTag(PagedPool,
Length + sizeof(UNICODE_NULL),
' laH');
if (Buffer)
{
/* Copy the string and null-terminate it */
RtlCopyMemory(Buffer, Id, Length);
Buffer[Length / sizeof(WCHAR)] = UNICODE_NULL;
/* Return string */
*BusQueryId = Buffer;
Status = STATUS_SUCCESS;
DPRINT("Returning: %S\n", *BusQueryId);
}
else
{
/* Fail */
Status = STATUS_INSUFFICIENT_RESOURCES;
}
/* Return status */
return Status;
}
NTSTATUS
NTAPI
HalpDispatchPnp(IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
PIO_STACK_LOCATION IoStackLocation;
//PPDO_EXTENSION PdoExtension;
PFDO_EXTENSION FdoExtension;
NTSTATUS Status;
UCHAR Minor;
/* Get the device extension and stack location */
FdoExtension = DeviceObject->DeviceExtension;
IoStackLocation = IoGetCurrentIrpStackLocation(Irp);
Minor = IoStackLocation->MinorFunction;
/* FDO? */
if (FdoExtension->ExtensionType == FdoExtensionType)
{
/* Query the IRP type */
switch (Minor)
{
case IRP_MN_QUERY_DEVICE_RELATIONS:
/* Call the worker */
DPRINT("Querying device relations for FDO\n");
Status = HalpQueryDeviceRelations(DeviceObject,
IoStackLocation->Parameters.QueryDeviceRelations.Type,
(PVOID)&Irp->IoStatus.Information);
break;
case IRP_MN_QUERY_INTERFACE:
/* Call the worker */
DPRINT("Querying interface for FDO\n");
Status = HalpQueryInterface(DeviceObject,
IoStackLocation->Parameters.QueryInterface.InterfaceType,
IoStackLocation->Parameters.QueryInterface.Size,
IoStackLocation->Parameters.QueryInterface.InterfaceSpecificData,
IoStackLocation->Parameters.QueryInterface.Version,
IoStackLocation->Parameters.QueryInterface.Interface,
(PVOID)&Irp->IoStatus.Information);
break;
case IRP_MN_QUERY_ID:
/* Call the worker */
DPRINT("Querying ID for FDO\n");
Status = HalpQueryIdFdo(DeviceObject,
IoStackLocation->Parameters.QueryId.IdType,
(PVOID)&Irp->IoStatus.Information);
break;
case IRP_MN_QUERY_CAPABILITIES:
/* Call the worker */
DPRINT("Querying the capabilities for the FDO\n");
Status = HalpQueryCapabilities(DeviceObject,
IoStackLocation->Parameters.DeviceCapabilities.Capabilities);
break;
default:
DPRINT("Other IRP: %lx\n", Minor);
Status = Irp->IoStatus.Status;
break;
}
/* Nowhere for the IRP to go since we also own the PDO */
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
else
{
/* This is a PDO instead */
ASSERT(FdoExtension->ExtensionType == PdoExtensionType);
//PdoExtension = (PPDO_EXTENSION)FdoExtension;
/* Query the IRP type */
Status = STATUS_SUCCESS;
switch (Minor)
{
case IRP_MN_START_DEVICE:
/* We only care about a PCI PDO */
DPRINT1("Start device received\n");
/* Complete the IRP normally */
break;
case IRP_MN_REMOVE_DEVICE:
/* Check if this is a PCI device */
DPRINT1("Remove device received\n");
/* We're done */
Status = STATUS_SUCCESS;
break;
case IRP_MN_SURPRISE_REMOVAL:
/* Inherit whatever status we had */
DPRINT1("Surprise removal IRP\n");
Status = Irp->IoStatus.Status;
break;
case IRP_MN_QUERY_DEVICE_RELATIONS:
/* Query the device relations */
DPRINT("Querying PDO relations\n");
Status = HalpQueryDeviceRelations(DeviceObject,
IoStackLocation->Parameters.QueryDeviceRelations.Type,
(PVOID)&Irp->IoStatus.Information);
break;
case IRP_MN_QUERY_INTERFACE:
/* Call the worker */
DPRINT("Querying interface for PDO\n");
Status = HalpQueryInterface(DeviceObject,
IoStackLocation->Parameters.QueryInterface.InterfaceType,
IoStackLocation->Parameters.QueryInterface.Size,
IoStackLocation->Parameters.QueryInterface.InterfaceSpecificData,
IoStackLocation->Parameters.QueryInterface.Version,
IoStackLocation->Parameters.QueryInterface.Interface,
(PVOID)&Irp->IoStatus.Information);
break;
case IRP_MN_QUERY_CAPABILITIES:
/* Call the worker */
DPRINT("Querying the capabilities for the PDO\n");
Status = HalpQueryCapabilities(DeviceObject,
IoStackLocation->Parameters.DeviceCapabilities.Capabilities);
break;
case IRP_MN_QUERY_RESOURCES:
/* Call the worker */
DPRINT("Querying the resources for the PDO\n");
Status = HalpQueryResources(DeviceObject, (PVOID)&Irp->IoStatus.Information);
break;
case IRP_MN_QUERY_RESOURCE_REQUIREMENTS:
/* Call the worker */
DPRINT("Querying the resource requirements for the PDO\n");
Status = HalpQueryResourceRequirements(DeviceObject,
(PVOID)&Irp->IoStatus.Information);
break;
case IRP_MN_QUERY_ID:
/* Call the worker */
DPRINT("Query the ID for the PDO\n");
Status = HalpQueryIdPdo(DeviceObject,
IoStackLocation->Parameters.QueryId.IdType,
(PVOID)&Irp->IoStatus.Information);
break;
default:
/* We don't handle anything else, so inherit the old state */
DPRINT("Illegal IRP: %lx\n", Minor);
Status = Irp->IoStatus.Status;
break;
}
/* If it's not supported, inherit the old status */
if (Status == STATUS_NOT_SUPPORTED) Status = Irp->IoStatus.Status;
/* Complete the IRP */
DPRINT("IRP completed with status: %lx\n", Status);
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
}
NTSTATUS
NTAPI
HalpDispatchWmi(IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
UNIMPLEMENTED_DBGBREAK("HAL: PnP Driver WMI!\n");
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
HalpDispatchPower(IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
DPRINT1("HAL: PnP Driver Power!\n");
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
HalpDriverEntry(IN PDRIVER_OBJECT DriverObject,
IN PUNICODE_STRING RegistryPath)
{
NTSTATUS Status;
PDEVICE_OBJECT TargetDevice = NULL;
DPRINT("HAL: PnP Driver ENTRY!\n");
/* This is us */
HalpDriverObject = DriverObject;
/* Set up add device */
DriverObject->DriverExtension->AddDevice = HalpAddDevice;
/* Set up the callouts */
DriverObject->MajorFunction[IRP_MJ_PNP] = HalpDispatchPnp;
DriverObject->MajorFunction[IRP_MJ_POWER] = HalpDispatchPower;
DriverObject->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = HalpDispatchWmi;
/* Create the PDO */
Status = IoCreateDevice(DriverObject,
0,
NULL,
FILE_DEVICE_CONTROLLER,
0,
FALSE,
&TargetDevice);
if (!NT_SUCCESS(Status))
return Status;
TargetDevice->Flags &= ~DO_DEVICE_INITIALIZING;
/* Set up the device stack */
Status = HalpAddDevice(DriverObject, TargetDevice);
if (!NT_SUCCESS(Status))
{
IoDeleteDevice(TargetDevice);
return Status;
}
/* Tell the PnP manager about us */
Status = IoReportDetectedDevice(DriverObject,
InterfaceTypeUndefined,
-1,
-1,
NULL,
NULL,
FALSE,
&TargetDevice);
/* Return to kernel */
return Status;
}
NTSTATUS
NTAPI
HaliInitPnpDriver(VOID)
{
NTSTATUS Status;
UNICODE_STRING DriverString;
PAGED_CODE();
/* Create the driver */
RtlInitUnicodeString(&DriverString, L"\\Driver\\ACPI_HAL");
Status = IoCreateDriver(&DriverString, HalpDriverEntry);
/* Return status */
return Status;
}
/* EOF */