pnp.h

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/*++ BUILD Version: 0001    // Increment this if a change has global effects

Copyright (c) 1995  Microsoft Corporation

Module Name:

    pnp.h

Abstract:

    This module contains the internal structure definitions and APIs used by
    the kernel-mode Plug and Play manager.

    This file is included by including "ntos.h".

Author:

    Lonny McMichael (lonnym) 02/09/95


Revision History:


--*/

#ifndef _PNP_
#define _PNP_

//
// The following global variables provide/control access to PnP Manager data.
//
// NOTE: If both registry AND bus list resources are required, then the
// bus list resource (PpBusResource) must be acquired FIRST.
//

extern ERESOURCE  PpRegistryDeviceResource;
extern PDRIVER_OBJECT IoPnpDriverObject;

// begin_ntddk begin_nthal begin_ntifs begin_wdm

//
// Define PnP Device Property for IoGetDeviceProperty
//

typedef enum {
    DevicePropertyDeviceDescription,
    DevicePropertyHardwareID,
    DevicePropertyCompatibleIDs,
    DevicePropertyBootConfiguration,
    DevicePropertyBootConfigurationTranslated,
    DevicePropertyClassName,
    DevicePropertyClassGuid,
    DevicePropertyDriverKeyName,
    DevicePropertyManufacturer,
    DevicePropertyFriendlyName,
    DevicePropertyLocationInformation,
    DevicePropertyPhysicalDeviceObjectName,
    DevicePropertyBusTypeGuid,
    DevicePropertyLegacyBusType,
    DevicePropertyBusNumber,
    DevicePropertyEnumeratorName,
    DevicePropertyAddress,
    DevicePropertyUINumber
} DEVICE_REGISTRY_PROPERTY;

typedef BOOLEAN (*PTRANSLATE_BUS_ADDRESS)(
    IN PVOID Context,
    IN PHYSICAL_ADDRESS BusAddress,
    IN ULONG Length,
    IN OUT PULONG AddressSpace,
    OUT PPHYSICAL_ADDRESS TranslatedAddress
    );

typedef struct _DMA_ADAPTER *(*PGET_DMA_ADAPTER)(
    IN PVOID Context,
    IN struct _DEVICE_DESCRIPTION *DeviceDescriptor,
    OUT PULONG NumberOfMapRegisters
    );

typedef ULONG (*PGET_SET_DEVICE_DATA)(
    IN PVOID Context,
    IN ULONG DataType,
    IN PVOID Buffer,
    IN ULONG Offset,
    IN ULONG Length
    );

//
// Define structure returned in response to IRP_MN_QUERY_BUS_INFORMATION by a
// PDO indicating the type of bus the device exists on.
//

typedef struct _PNP_BUS_INFORMATION {
    GUID BusTypeGuid;
    INTERFACE_TYPE LegacyBusType;
    ULONG BusNumber;
} PNP_BUS_INFORMATION, *PPNP_BUS_INFORMATION;

//
// Define structure returned in response to IRP_MN_QUERY_LEGACY_BUS_INFORMATION
// by an FDO indicating the type of bus it is.  This is normally the same bus
// type as the device's children (i.e., as retrieved from the child PDO's via
// IRP_MN_QUERY_BUS_INFORMATION) except for cases like CardBus, which can
// support both 16-bit (PCMCIABus) and 32-bit (PCIBus) cards.
//

typedef struct _LEGACY_BUS_INFORMATION {
    GUID BusTypeGuid;
    INTERFACE_TYPE LegacyBusType;
    ULONG BusNumber;
} LEGACY_BUS_INFORMATION, *PLEGACY_BUS_INFORMATION;

typedef struct _BUS_INTERFACE_STANDARD {
    //
    // generic interface header
    //
    USHORT Size;
    USHORT Version;
    PVOID Context;
    PINTERFACE_REFERENCE InterfaceReference;
    PINTERFACE_DEREFERENCE InterfaceDereference;
    //
    // standard bus interfaces
    //
    PTRANSLATE_BUS_ADDRESS TranslateBusAddress;
    PGET_DMA_ADAPTER GetDmaAdapter;
    PGET_SET_DEVICE_DATA SetBusData;
    PGET_SET_DEVICE_DATA GetBusData;

} BUS_INTERFACE_STANDARD, *PBUS_INTERFACE_STANDARD;

//
// The following definitions are used in ACPI QueryInterface
//
typedef BOOLEAN (* PGPE_SERVICE_ROUTINE) (
                            PVOID,
                            PVOID);

typedef NTSTATUS (* PGPE_CONNECT_VECTOR) (
                            PDEVICE_OBJECT,
                            ULONG,
                            KINTERRUPT_MODE,
                            BOOLEAN,
                            PGPE_SERVICE_ROUTINE,
                            PVOID,
                            PVOID);

typedef NTSTATUS (* PGPE_DISCONNECT_VECTOR) (
                            PVOID);

typedef NTSTATUS (* PGPE_ENABLE_EVENT) (
                            PDEVICE_OBJECT,
                            PVOID);

typedef NTSTATUS (* PGPE_DISABLE_EVENT) (
                            PDEVICE_OBJECT,
                            PVOID);

typedef NTSTATUS (* PGPE_CLEAR_STATUS) (
                            PDEVICE_OBJECT,
                            PVOID);

typedef VOID (* PDEVICE_NOTIFY_CALLBACK) (
                            PVOID,
                            ULONG);

typedef NTSTATUS (* PREGISTER_FOR_DEVICE_NOTIFICATIONS) (
                            PDEVICE_OBJECT,
                            PDEVICE_NOTIFY_CALLBACK,
                            PVOID);

typedef void (* PUNREGISTER_FOR_DEVICE_NOTIFICATIONS) (
                            PDEVICE_OBJECT,
                            PDEVICE_NOTIFY_CALLBACK);

typedef struct _ACPI_INTERFACE_STANDARD {
    //
    // Generic interface header
    //
    USHORT                  Size;
    USHORT                  Version;
    PVOID                   Context;
    PINTERFACE_REFERENCE    InterfaceReference;
    PINTERFACE_DEREFERENCE  InterfaceDereference;
    //
    // ACPI interfaces
    //
    PGPE_CONNECT_VECTOR                     GpeConnectVector;
    PGPE_DISCONNECT_VECTOR                  GpeDisconnectVector;
    PGPE_ENABLE_EVENT                       GpeEnableEvent;
    PGPE_DISABLE_EVENT                      GpeDisableEvent;
    PGPE_CLEAR_STATUS                       GpeClearStatus;
    PREGISTER_FOR_DEVICE_NOTIFICATIONS      RegisterForDeviceNotifications;
    PUNREGISTER_FOR_DEVICE_NOTIFICATIONS    UnregisterForDeviceNotifications;

} ACPI_INTERFACE_STANDARD, *PACPI_INTERFACE_STANDARD;

// end_wdm

typedef enum _ACPI_REG_TYPE {
    PM1a_ENABLE,
    PM1b_ENABLE,
    PM1a_STATUS,
    PM1b_STATUS,
    PM1a_CONTROL,
    PM1b_CONTROL,
    GP_STATUS,
    GP_ENABLE,
    SMI_CMD,
    MaxRegType
} ACPI_REG_TYPE, *PACPI_REG_TYPE;

typedef USHORT (*PREAD_ACPI_REGISTER) (
  IN ACPI_REG_TYPE AcpiReg,
  IN ULONG         Register);

typedef VOID (*PWRITE_ACPI_REGISTER) (
  IN ACPI_REG_TYPE AcpiReg,
  IN ULONG         Register,
  IN USHORT        Value
  );

typedef struct ACPI_REGS_INTERFACE_STANDARD {
    //
    // generic interface header
    //
    USHORT Size;
    USHORT Version;
    PVOID  Context;
    PINTERFACE_REFERENCE   InterfaceReference;
    PINTERFACE_DEREFERENCE InterfaceDereference;

    //
    // READ/WRITE_ACPI_REGISTER functions
    //
    PREAD_ACPI_REGISTER  ReadAcpiRegister;
    PWRITE_ACPI_REGISTER WriteAcpiRegister;

} ACPI_REGS_INTERFACE_STANDARD, *PACPI_REGS_INTERFACE_STANDARD;

//
// These definitions are used for getting PCI Interrupt Routing interfaces
//

typedef struct {
    PVOID   LinkNode;
    ULONG   StaticVector;
    UCHAR   Flags;
} ROUTING_TOKEN, *PROUTING_TOKEN;

//
// Flag indicating that the device supports
// MSI interrupt routing or that the provided token contains
// MSI routing information
//

#define PCI_MSI_ROUTING 0x1

typedef
NTSTATUS
(*PGET_INTERRUPT_ROUTING)(
    IN  PDEVICE_OBJECT  Pdo,
    OUT ULONG           *Bus,
    OUT ULONG           *PciSlot,
    OUT UCHAR           *InterruptLine,
    OUT UCHAR           *InterruptPin,
    OUT UCHAR           *ClassCode,
    OUT UCHAR           *SubClassCode,
    OUT PDEVICE_OBJECT  *ParentPdo,
    OUT ROUTING_TOKEN   *RoutingToken,
    OUT UCHAR           *Flags
    );

typedef
NTSTATUS
(*PSET_INTERRUPT_ROUTING_TOKEN)(
    IN  PDEVICE_OBJECT  Pdo,
    IN  PROUTING_TOKEN  RoutingToken
    );

typedef
VOID
(*PUPDATE_INTERRUPT_LINE)(
    IN PDEVICE_OBJECT Pdo,
    IN UCHAR LineRegister
    );

typedef struct _INT_ROUTE_INTERFACE_STANDARD {
    //
    // generic interface header
    //
    USHORT Size;
    USHORT Version;
    PVOID Context;
    PINTERFACE_REFERENCE InterfaceReference;
    PINTERFACE_DEREFERENCE InterfaceDereference;
    //
    // standard bus interfaces
    //
    PGET_INTERRUPT_ROUTING GetInterruptRouting;
    PSET_INTERRUPT_ROUTING_TOKEN SetInterruptRoutingToken;
    PUPDATE_INTERRUPT_LINE UpdateInterruptLine;

} INT_ROUTE_INTERFACE_STANDARD, *PINT_ROUTE_INTERFACE_STANDARD;

// Some well-known interface versions supported by the PCI Bus Driver

#define PCI_INT_ROUTE_INTRF_STANDARD_VER 1

// end_ntddk end_nthal end_ntifs

NTKERNELAPI
BOOLEAN
PpInitSystem (
    VOID
    );

NTKERNELAPI
NTSTATUS
PpDeviceRegistration(
    IN PUNICODE_STRING DeviceInstancePath,
    IN BOOLEAN Add,
    IN PUNICODE_STRING ServiceKeyName OPTIONAL
    );

NTKERNELAPI
NTSTATUS
IoSynchronousInvalidateDeviceRelations(
    PDEVICE_OBJECT DeviceObject,
    DEVICE_RELATION_TYPE Type
    );

// begin_ntddk begin_nthal begin_ntifs

typedef struct _IO_ASSIGNED_RESOURCES {
    ULONG Count;
    PASSIGNED_RESOURCE AssignedResources[1];
} IO_ASSIGNED_RESOURCES, *PIO_ASSIGNED_RESOURCES;

NTKERNELAPI
NTSTATUS
IoGetAssignedResourcesForSuballocation (
    IN INTERFACE_TYPE InterfaceType,
    IN ULONG BusNumber,
    IN ULONG SlotNumber,
    IN PIO_RESOURCE_DESCRIPTOR ResourceDescriptor,
    OUT PIO_ASSIGNED_RESOURCES *List
    );

NTKERNELAPI
NTSTATUS
IoReportDetectedDevice(
    IN PDRIVER_OBJECT DriverObject,
    IN INTERFACE_TYPE LegacyBusType,
    IN ULONG BusNumber,
    IN ULONG SlotNumber,
    IN PCM_RESOURCE_LIST ResourceList,
    IN PIO_RESOURCE_REQUIREMENTS_LIST ResourceRequirements OPTIONAL,
    IN BOOLEAN ResourceAssigned,
    IN OUT PDEVICE_OBJECT *DeviceObject
    );

//  begin_wdm

NTKERNELAPI
VOID
IoInvalidateDeviceRelations(
    IN PDEVICE_OBJECT DeviceObject,
    IN DEVICE_RELATION_TYPE Type
    );

NTKERNELAPI
VOID
IoRequestDeviceEject(
    IN PDEVICE_OBJECT PhysicalDeviceObject
    );

NTKERNELAPI
NTSTATUS
IoGetDeviceProperty(
    IN PDEVICE_OBJECT DeviceObject,
    IN DEVICE_REGISTRY_PROPERTY DeviceProperty,
    IN ULONG BufferLength,
    OUT PVOID PropertyBuffer,
    OUT PULONG ResultLength
    );

//
// The following definitions are used in IoOpenDeviceRegistryKey
//

#define PLUGPLAY_REGKEY_DEVICE  1
#define PLUGPLAY_REGKEY_DRIVER  2
#define PLUGPLAY_REGKEY_CURRENT_HWPROFILE 4

NTKERNELAPI
NTSTATUS
IoOpenDeviceRegistryKey(
    IN PDEVICE_OBJECT DeviceObject,
    IN ULONG DevInstKeyType,
    IN ACCESS_MASK DesiredAccess,
    OUT PHANDLE DevInstRegKey
    );

NTKERNELAPI
NTSTATUS
NTAPI
IoRegisterDeviceInterface(
    IN PDEVICE_OBJECT PhysicalDeviceObject,
    IN CONST GUID *InterfaceClassGuid,
    IN PUNICODE_STRING ReferenceString,     OPTIONAL
    OUT PUNICODE_STRING SymbolicLinkName
    );

NTKERNELAPI
NTSTATUS
IoOpenDeviceInterfaceRegistryKey(
    IN PUNICODE_STRING SymbolicLinkName,
    IN ACCESS_MASK DesiredAccess,
    OUT PHANDLE DeviceInterfaceKey
    );

// begin_ntsrv

NTKERNELAPI
NTSTATUS
IoSetDeviceInterfaceState(
    IN PUNICODE_STRING SymbolicLinkName,
    IN BOOLEAN Enable
    );

// end_ntsrv

NTKERNELAPI
NTSTATUS
NTAPI
IoGetDeviceInterfaces(
    IN CONST GUID *InterfaceClassGuid,
    IN PDEVICE_OBJECT PhysicalDeviceObject OPTIONAL,
    IN ULONG Flags,
    OUT PWSTR *SymbolicLinkList
    );

#define DEVICE_INTERFACE_INCLUDE_NONACTIVE   0x00000001

NTKERNELAPI
NTSTATUS
NTAPI
IoGetDeviceInterfaceAlias(
    IN PUNICODE_STRING SymbolicLinkName,
    IN CONST GUID *AliasInterfaceClassGuid,
    OUT PUNICODE_STRING AliasSymbolicLinkName
    );

//
// Define PnP notification event categories
//

typedef enum _IO_NOTIFICATION_EVENT_CATEGORY {
    EventCategoryReserved,
    EventCategoryHardwareProfileChange,
    EventCategoryDeviceInterfaceChange,
    EventCategoryTargetDeviceChange
} IO_NOTIFICATION_EVENT_CATEGORY;

//
// Define flags that modify the behavior of IoRegisterPlugPlayNotification
// for the various event categories...
//

#define PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES    0x00000001

typedef
NTSTATUS
(*PDRIVER_NOTIFICATION_CALLBACK_ROUTINE) (
    IN PVOID NotificationStructure,
    IN PVOID Context
);


NTKERNELAPI
NTSTATUS
IoRegisterPlugPlayNotification(
    IN IO_NOTIFICATION_EVENT_CATEGORY EventCategory,
    IN ULONG EventCategoryFlags,
    IN PVOID EventCategoryData OPTIONAL,
    IN PDRIVER_OBJECT DriverObject,
    IN PDRIVER_NOTIFICATION_CALLBACK_ROUTINE CallbackRoutine,
    IN PVOID Context,
    OUT PVOID *NotificationEntry
    );

NTKERNELAPI
NTSTATUS
IoUnregisterPlugPlayNotification(
    IN PVOID NotificationEntry
    );

NTKERNELAPI
NTSTATUS
IoReportTargetDeviceChange(
    IN PDEVICE_OBJECT PhysicalDeviceObject,
    IN PVOID NotificationStructure  // always begins with a PLUGPLAY_NOTIFICATION_HEADER
    );

typedef
VOID
(*PDEVICE_CHANGE_COMPLETE_CALLBACK)(
    IN PVOID Context
    );

NTKERNELAPI
VOID
IoInvalidateDeviceState(
    IN PDEVICE_OBJECT PhysicalDeviceObject
    );

#define IoAdjustPagingPathCount(_count_,_paging_) {     \
    if (_paging_) {                                     \
        InterlockedIncrement(_count_);                  \
    } else {                                            \
        InterlockedDecrement(_count_);                  \
    }                                                   \
}

// end_wdm

NTKERNELAPI
NTSTATUS
IoReportTargetDeviceChangeAsynchronous(
    IN PDEVICE_OBJECT PhysicalDeviceObject,
    IN PVOID NotificationStructure,  // always begins with a PLUGPLAY_NOTIFICATION_HEADER
    IN PDEVICE_CHANGE_COMPLETE_CALLBACK Callback,       OPTIONAL
    IN PVOID Context    OPTIONAL
    );

// end_ntddk end_nthal end_ntifs


// begin_ntddk begin_nthal begin_ntifs

//
// Resource arbiter declarations
//

typedef enum _ARBITER_ACTION {
    ArbiterActionTestAllocation,
    ArbiterActionRetestAllocation,
    ArbiterActionCommitAllocation,
    ArbiterActionRollbackAllocation,
    ArbiterActionQueryAllocatedResources,
    ArbiterActionWriteReservedResources,
    ArbiterActionQueryConflict,
    ArbiterActionQueryArbitrate,
    ArbiterActionAddReserved,
    ArbiterActionBootAllocation
} ARBITER_ACTION, *PARBITER_ACTION;

typedef struct _ARBITER_CONFLICT_INFO {
    //
    // The device object owning the device that is causing the conflict
    //
    PDEVICE_OBJECT OwningObject;

    //
    // The start of the conflicting range
    //
    ULONGLONG Start;

    //
    // The end of the conflicting range
    //
    ULONGLONG End;

} ARBITER_CONFLICT_INFO, *PARBITER_CONFLICT_INFO;

//
// The parameters for those actions
//

typedef struct _ARBITER_PARAMETERS {

    union {

        struct {

            //
            // Doubly linked list of ARBITER_LIST_ENTRY's
            //
            IN OUT PLIST_ENTRY ArbitrationList;

            //
            // The size of the AllocateFrom array
            //
            IN ULONG AllocateFromCount;

            //
            // Array of resource descriptors describing the resources available
            // to the arbiter for it to arbitrate
            //
            IN PCM_PARTIAL_RESOURCE_DESCRIPTOR AllocateFrom;

        } TestAllocation;

        struct {

            //
            // Doubly linked list of ARBITER_LIST_ENTRY's
            //
            IN OUT PLIST_ENTRY ArbitrationList;

            //
            // The size of the AllocateFrom array
            //
            IN ULONG AllocateFromCount;

            //
            // Array of resource descriptors describing the resources available
            // to the arbiter for it to arbitrate
            //
            IN PCM_PARTIAL_RESOURCE_DESCRIPTOR AllocateFrom;

        } RetestAllocation;

        struct {

            //
            // Doubly linked list of ARBITER_LIST_ENTRY's
            //
            IN OUT PLIST_ENTRY ArbitrationList;

        } BootAllocation;

        struct {

            //
            // The resources that are currently allocated
            //
            OUT PCM_PARTIAL_RESOURCE_LIST *AllocatedResources;

        } QueryAllocatedResources;

        struct {

            //
            // This is the device we are trying to find a conflict for
            //
            IN PDEVICE_OBJECT PhysicalDeviceObject;

            //
            // This is the resource to find the conflict for
            //
            IN PIO_RESOURCE_DESCRIPTOR ConflictingResource;

            //
            // Number of devices conflicting on the resource
            //
            OUT PULONG ConflictCount;

            //
            // Pointer to array describing the conflicting device objects and ranges
            //
            OUT PARBITER_CONFLICT_INFO *Conflicts;

        } QueryConflict;

        struct {

            //
            // Doubly linked list of ARBITER_LIST_ENTRY's - should have
            // only one entry
            //
            IN PLIST_ENTRY ArbitrationList;

        } QueryArbitrate;

        struct {

            //
            // Indicates the device whose resources are to be marked as reserved
            //
            PDEVICE_OBJECT ReserveDevice;

        } AddReserved;

    } Parameters;

} ARBITER_PARAMETERS, *PARBITER_PARAMETERS;



typedef enum _ARBITER_REQUEST_SOURCE {

    ArbiterRequestUndefined = -1,
    ArbiterRequestLegacyReported,   // IoReportResourceUsage
    ArbiterRequestHalReported,      // IoReportHalResourceUsage
    ArbiterRequestLegacyAssigned,   // IoAssignResources
    ArbiterRequestPnpDetected,      // IoReportResourceForDetection
    ArbiterRequestPnpEnumerated     // IRP_MN_QUERY_RESOURCE_REQUIREMENTS

} ARBITER_REQUEST_SOURCE;


typedef enum _ARBITER_RESULT {

    ArbiterResultUndefined = -1,
    ArbiterResultSuccess,
    ArbiterResultExternalConflict, // This indicates that the request can never be solved for devices in this list
    ArbiterResultNullRequest       // The request was for length zero and thus no translation should be attempted

} ARBITER_RESULT;

//
// ARBITER_FLAG_BOOT_CONFIG - this indicates that the request is for the
// resources assigned by the firmware/BIOS.  It should be succeeded even if
// it conflicts with another devices boot config.
//

#define ARBITER_FLAG_BOOT_CONFIG 0x00000001

NTKERNELAPI
NTSTATUS
IoReportResourceForDetection(
    IN PDRIVER_OBJECT DriverObject,
    IN PCM_RESOURCE_LIST DriverList OPTIONAL,
    IN ULONG DriverListSize OPTIONAL,
    IN PDEVICE_OBJECT DeviceObject OPTIONAL,
    IN PCM_RESOURCE_LIST DeviceList OPTIONAL,
    IN ULONG DeviceListSize OPTIONAL,
    OUT PBOOLEAN ConflictDetected
    );


typedef struct _ARBITER_LIST_ENTRY {

    //
    // This is a doubly linked list of entries for easy sorting
    //
    LIST_ENTRY ListEntry;

    //
    // The number of alternative allocation
    //
    ULONG AlternativeCount;

    //
    // Pointer to an array of resource descriptors for the possible allocations
    //
    PIO_RESOURCE_DESCRIPTOR Alternatives;

    //
    // The device object of the device requesting these resources.
    //
    PDEVICE_OBJECT PhysicalDeviceObject;

    //
    // Indicates where the request came from
    //
    ARBITER_REQUEST_SOURCE RequestSource;

    //
    // Flags these indicate a variety of things (use ARBITER_FLAG_*)
    //
    ULONG Flags;

    //
    // Space to aid the arbiter in processing the list it is initialized to 0 when
    // the entry is created.  The system will not attempt to interpret it.
    //
    LONG_PTR WorkSpace;

    //
    // Interface Type, Slot Number and Bus Number from Resource Requirements list,
    // used only for reverse identification.
    //
    INTERFACE_TYPE InterfaceType;
    ULONG SlotNumber;
    ULONG BusNumber;

    //
    // A pointer to a descriptor to indicate the resource that was allocated.
    // This is allocated by the system and filled in by the arbiter in response to an
    // ArbiterActionTestAllocation.
    //
    PCM_PARTIAL_RESOURCE_DESCRIPTOR Assignment;

    //
    // Pointer to the alternative that was chosen from to provide the assignment.
    // This is filled in by the arbiter in response to an ArbiterActionTestAllocation.
    //
    PIO_RESOURCE_DESCRIPTOR SelectedAlternative;

    //
    // The result of the operation
    // This is filled in by the arbiter in response to an ArbiterActionTestAllocation.
    //
    ARBITER_RESULT Result;

} ARBITER_LIST_ENTRY, *PARBITER_LIST_ENTRY;

//
// The arbiter's entry point
//

typedef
NTSTATUS
(*PARBITER_HANDLER) (
    IN PVOID Context,
    IN ARBITER_ACTION Action,
    IN OUT PARBITER_PARAMETERS Parameters
    );

//
// Arbiter interface
//

//
// A partial arbiter is one which may not arbitrate all the resources for
// its children but may defer to the next arbiter in the chain by returning
// STATUS_ARBITRATION_UNHANDLED.
//

#define ARBITER_PARTIAL   0x00000001


typedef struct _ARBITER_INTERFACE {

    //
    // Generic interface header
    //
    USHORT Size;
    USHORT Version;
    PVOID Context;
    PINTERFACE_REFERENCE InterfaceReference;
    PINTERFACE_DEREFERENCE InterfaceDereference;

    //
    // Entry point to the arbiter
    //
    PARBITER_HANDLER ArbiterHandler;

    //
    // Other information about the arbiter, use ARBITER_* flags
    //
    ULONG Flags;

} ARBITER_INTERFACE, *PARBITER_INTERFACE;

//
// The directions translation can take place in
//

typedef enum _RESOURCE_TRANSLATION_DIRECTION {
    TranslateChildToParent,
    TranslateParentToChild
} RESOURCE_TRANSLATION_DIRECTION;

//
// Translation functions
//

typedef
NTSTATUS
(*PTRANSLATE_RESOURCE_HANDLER)(
    IN PVOID Context,
    IN PCM_PARTIAL_RESOURCE_DESCRIPTOR Source,
    IN RESOURCE_TRANSLATION_DIRECTION Direction,
    IN ULONG AlternativesCount, OPTIONAL
    IN IO_RESOURCE_DESCRIPTOR Alternatives[], OPTIONAL
    IN PDEVICE_OBJECT PhysicalDeviceObject,
    OUT PCM_PARTIAL_RESOURCE_DESCRIPTOR Target
);

typedef
NTSTATUS
(*PTRANSLATE_RESOURCE_REQUIREMENTS_HANDLER)(
    IN PVOID Context,
    IN PIO_RESOURCE_DESCRIPTOR Source,
    IN PDEVICE_OBJECT PhysicalDeviceObject,
    OUT PULONG TargetCount,
    OUT PIO_RESOURCE_DESCRIPTOR *Target
);

//
// Translator Interface
//

typedef struct _TRANSLATOR_INTERFACE {
    USHORT Size;
    USHORT Version;
    PVOID Context;
    PINTERFACE_REFERENCE InterfaceReference;
    PINTERFACE_DEREFERENCE InterfaceDereference;
    PTRANSLATE_RESOURCE_HANDLER TranslateResources;
    PTRANSLATE_RESOURCE_REQUIREMENTS_HANDLER TranslateResourceRequirements;
} TRANSLATOR_INTERFACE, *PTRANSLATOR_INTERFACE;

// end_wdm

//
// Legacy Device Detection Handler
//

typedef
NTSTATUS
(*PLEGACY_DEVICE_DETECTION_HANDLER)(
    IN PVOID Context,
    IN INTERFACE_TYPE LegacyBusType,
    IN ULONG BusNumber,
    IN ULONG SlotNumber,
    OUT PDEVICE_OBJECT *PhysicalDeviceObject
);

//
// Legacy Device Detection Interface
//

typedef struct _LEGACY_DEVICE_DETECTION_INTERFACE {
    USHORT Size;
    USHORT Version;
    PVOID Context;
    PINTERFACE_REFERENCE InterfaceReference;
    PINTERFACE_DEREFERENCE InterfaceDereference;
    PLEGACY_DEVICE_DETECTION_HANDLER LegacyDeviceDetection;
} LEGACY_DEVICE_DETECTION_INTERFACE, *PLEGACY_DEVICE_DETECTION_INTERFACE;

// end_ntddk end_nthal end_ntifs

// begin_wdm begin_ntddk begin_ntifs begin_nthal

//
// Header structure for all Plug&Play notification events...
//

typedef struct _PLUGPLAY_NOTIFICATION_HEADER {
    USHORT Version; // presently at version 1.
    USHORT Size;    // size (in bytes) of header + event-specific data.
    GUID Event;
    //
    // Event-specific stuff starts here.
    //
} PLUGPLAY_NOTIFICATION_HEADER, *PPLUGPLAY_NOTIFICATION_HEADER;

//
// Notification structure for all EventCategoryHardwareProfileChange events...
//

typedef struct _HWPROFILE_CHANGE_NOTIFICATION {
    USHORT Version;
    USHORT Size;
    GUID Event;
    //
    // (No event-specific data)
    //
} HWPROFILE_CHANGE_NOTIFICATION, *PHWPROFILE_CHANGE_NOTIFICATION;


//
// Notification structure for all EventCategoryDeviceInterfaceChange events...
//

typedef struct _DEVICE_INTERFACE_CHANGE_NOTIFICATION {
    USHORT Version;
    USHORT Size;
    GUID Event;
    //
    // Event-specific data
    //
    GUID InterfaceClassGuid;
    PUNICODE_STRING SymbolicLinkName;
} DEVICE_INTERFACE_CHANGE_NOTIFICATION, *PDEVICE_INTERFACE_CHANGE_NOTIFICATION;


//
// Notification structures for EventCategoryTargetDeviceChange...
//

//
// The following structure is used for TargetDeviceQueryRemove,
// TargetDeviceRemoveCancelled, and TargetDeviceRemoveComplete:
//
typedef struct _TARGET_DEVICE_REMOVAL_NOTIFICATION {
    USHORT Version;
    USHORT Size;
    GUID Event;
    //
    // Event-specific data
    //
    PFILE_OBJECT FileObject;
} TARGET_DEVICE_REMOVAL_NOTIFICATION, *PTARGET_DEVICE_REMOVAL_NOTIFICATION;

//
// The following structure header is used for all other (i.e., 3rd-party)
// target device change events.  The structure accommodates both a
// variable-length binary data buffer, and a variable-length unicode text
// buffer.  The header must indicate where the text buffer begins, so that
// the data can be delivered in the appropriate format (ANSI or Unicode)
// to user-mode recipients (i.e., that have registered for handle-based
// notification via RegisterDeviceNotification).
//

typedef struct _TARGET_DEVICE_CUSTOM_NOTIFICATION {
    USHORT Version;
    USHORT Size;
    GUID Event;
    //
    // Event-specific data
    //
    PFILE_OBJECT FileObject;    // This field must be set to NULL by callers of
                                // IoReportTargetDeviceChange.  Clients that
                                // have registered for target device change
                                // notification on the affected PDO will be
                                // called with this field set to the file object
                                // they specified during registration.
                                //
    LONG NameBufferOffset;      // offset (in bytes) from beginning of
                                // CustomDataBuffer where text begins (-1 if none)
                                //
    UCHAR CustomDataBuffer[1];  // variable-length buffer, containing (optionally)
                                // a binary data at the start of the buffer,
                                // followed by an optional unicode text buffer
                                // (word-aligned).
                                //
} TARGET_DEVICE_CUSTOM_NOTIFICATION, *PTARGET_DEVICE_CUSTOM_NOTIFICATION;

// end_wdm end_ntddk end_ntifs end_nthal

NTSTATUS
PpSetCustomTargetEvent(
    IN  PDEVICE_OBJECT DeviceObject,
    IN  PKEVENT SyncEvent                           OPTIONAL,
    OUT PULONG Result                               OPTIONAL,
    IN  PDEVICE_CHANGE_COMPLETE_CALLBACK Callback   OPTIONAL,
    IN  PVOID Context                               OPTIONAL,
    IN  PTARGET_DEVICE_CUSTOM_NOTIFICATION NotificationStructure
    );

NTSTATUS
PpSetTargetDeviceRemove(
    IN  PDEVICE_OBJECT DeviceObject,
    IN  BOOLEAN KernelInitiated,
    IN  BOOLEAN NoRestart,
    IN  BOOLEAN DoEject,
    IN  ULONG Problem,
    IN  PKEVENT SyncEvent        OPTIONAL,
    OUT PULONG Result            OPTIONAL,
    OUT PPNP_VETO_TYPE VetoType  OPTIONAL,
    OUT PUNICODE_STRING VetoName OPTIONAL
    );

NTSTATUS
PpSetDeviceRemovalSafe(
    IN  PDEVICE_OBJECT DeviceObject,
    IN  PKEVENT SyncEvent           OPTIONAL,
    OUT PULONG Result               OPTIONAL
    );

NTSTATUS
PpNotifyUserModeRemovalSafe(
    IN  PDEVICE_OBJECT DeviceObject
    );

#define TDF_DEVICEEJECTABLE     0x00000001
#define TDF_NO_RESTART          0x00000002
#define TDF_KERNEL_INITIATED    0x00000004

NTSTATUS
PpSetDeviceClassChange(
    IN CONST GUID *EventGuid,
    IN CONST GUID *ClassGuid,
    IN PUNICODE_STRING SymbolicLinkName
    );

VOID
PpSetPlugPlayEvent(
    IN CONST GUID *EventGuid,
    IN PDEVICE_OBJECT DeviceObject
    );

NTSTATUS
PpInitializeNotification(
    VOID
    );

VOID
PpShutdownSystem (
    IN BOOLEAN Reboot,
    IN ULONG Phase,
    IN OUT PVOID *Context
    );

NTSTATUS
PpSetPowerEvent(
    IN   ULONG EventCode,
    IN   PKEVENT CompletionEvent    OPTIONAL,
    OUT  PNTSTATUS CompletionStatus OPTIONAL,
    OUT  PPNP_VETO_TYPE VetoType    OPTIONAL,
    OUT  PUNICODE_STRING VetoName   OPTIONAL
    );

NTSTATUS
PpSetHwProfileChangeEvent(
    IN   CONST GUID *EventGuid,
    IN   PKEVENT CompletionEvent    OPTIONAL,
    OUT  PNTSTATUS CompletionStatus OPTIONAL,
    OUT  PPNP_VETO_TYPE VetoType    OPTIONAL,
    OUT  PUNICODE_STRING VetoName   OPTIONAL
    );

NTSTATUS
PpSynchronizeDeviceEventQueue(
    VOID
    );

NTSTATUS
PpSetPowerVetoEvent(
    IN  POWER_ACTION    VetoedPowerOperation,
    IN  PKEVENT         CompletionEvent         OPTIONAL,
    OUT PNTSTATUS       CompletionStatus        OPTIONAL,
    IN  PDEVICE_OBJECT  DeviceObject,
    IN  PNP_VETO_TYPE   VetoType,
    IN  PUNICODE_STRING VetoName                OPTIONAL
    );

//
// Entry point for USER to deliver notifications (public)
//

ULONG
IoPnPDeliverServicePowerNotification(
    ULONG   PwrNotification,
    BOOLEAN Synchronous
    );

#endif // _PNP_

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