wmi.c File Reference

#include "inport.h"
#include <debug.h>

Include dependency graph for wmi.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
NTSTATUS NTAPI	InPortQueryWmiRegInfo (_Inout_ PDEVICE_OBJECT DeviceObject, _Inout_ PULONG RegFlags, _Inout_ PUNICODE_STRING InstanceName, _Out_opt_ PUNICODE_STRING *RegistryPath, _Inout_ PUNICODE_STRING MofResourceName, _Out_opt_ PDEVICE_OBJECT *Pdo)
NTSTATUS NTAPI	InPortQueryWmiDataBlock (_Inout_ PDEVICE_OBJECT DeviceObject, _Inout_ PIRP Irp, _In_ ULONG GuidIndex, _In_ ULONG InstanceIndex, _In_ ULONG InstanceCount, _Out_opt_ PULONG InstanceLengthArray, _In_ ULONG BufferAvail, _Out_opt_ PUCHAR Buffer)
NTSTATUS NTAPI	InPortWmiRegistration (_Inout_ PINPORT_DEVICE_EXTENSION DeviceExtension)
NTSTATUS NTAPI	InPortWmiDeRegistration (_Inout_ PINPORT_DEVICE_EXTENSION DeviceExtension)
NTSTATUS NTAPI	InPortWmi (_In_ PDEVICE_OBJECT DeviceObject, _Inout_ PIRP Irp)

Variables
GUID	GuidWmiPortData = POINTER_PORT_WMI_STD_DATA_GUID
WMIGUIDREGINFO	InPortWmiGuidList []

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 12 of file wmi.c.

Function Documentation

InPortQueryWmiDataBlock()

NTSTATUS NTAPI InPortQueryWmiDataBlock	(	_Inout_ PDEVICE_OBJECT	DeviceObject,
		_Inout_ PIRP	Irp,
		_In_ ULONG	GuidIndex,
		_In_ ULONG	InstanceIndex,
		_In_ ULONG	InstanceCount,
		_Out_opt_ PULONG	InstanceLengthArray,
		_In_ ULONG	BufferAvail,
		_Out_opt_ PUCHAR	Buffer
	)

Definition at line 55 of file wmi.c.

{
    NTSTATUS Status;
    PPOINTER_PORT_WMI_STD_DATA InPortData;
    PINPORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
 
    PAGED_CODE();
 
    DPRINT("%s()\n", __FUNCTION__);
 
    if (GuidIndex > RTL_NUMBER_OF(InPortWmiGuidList))
    {
        Status = STATUS_WMI_GUID_NOT_FOUND;
        goto Complete;
    }
 
    /* Only register 1 instance per GUID */
    if (InstanceIndex != 0 || InstanceCount != 1)
    {
        Status = STATUS_WMI_INSTANCE_NOT_FOUND;
        goto Complete;
    }
 
    if (!InstanceLengthArray || BufferAvail < sizeof(POINTER_PORT_WMI_STD_DATA))
    {
        Status = STATUS_BUFFER_TOO_SMALL;
        goto Complete;
    }
 
    InPortData = (PPOINTER_PORT_WMI_STD_DATA)Buffer;
 
    /* Bus mouse connector isn't defined in the DDK, so set type to something generic */
    InPortData->ConnectorType = POINTER_PORT_WMI_STD_I8042;
    /* 1 packet */
    InPortData->DataQueueSize = 1;
    /* Not supported by device */
    InPortData->ErrorCount = 0;
 
    InPortData->Buttons = DeviceExtension->MouseAttributes.NumberOfButtons;
    InPortData->HardwareType = POINTER_PORT_WMI_STD_MOUSE;
    *InstanceLengthArray = sizeof(POINTER_PORT_WMI_STD_DATA);
 
    Status = STATUS_SUCCESS;
 
Complete:
    return WmiCompleteRequest(DeviceObject,
                              Irp,
                              Status,
                              sizeof(POINTER_PORT_WMI_STD_DATA),
                              IO_NO_INCREMENT);
}

Referenced by InPortWmiRegistration().

InPortQueryWmiRegInfo()

NTSTATUS NTAPI InPortQueryWmiRegInfo	(	_Inout_ PDEVICE_OBJECT	DeviceObject,
		_Inout_ PULONG	RegFlags,
		_Inout_ PUNICODE_STRING	InstanceName,
		_Out_opt_ PUNICODE_STRING *	RegistryPath,
		_Inout_ PUNICODE_STRING	MofResourceName,
		_Out_opt_ PDEVICE_OBJECT *	Pdo
	)

Definition at line 28 of file wmi.c.

{
    PINPORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
 
    UNREFERENCED_PARAMETER(InstanceName);
    UNREFERENCED_PARAMETER(MofResourceName);
 
    PAGED_CODE();
 
    DPRINT("%s()\n", __FUNCTION__);
 
    *RegFlags = WMIREG_FLAG_INSTANCE_PDO;
    *RegistryPath = &DriverRegistryPath;
    *Pdo = DeviceExtension->Pdo;
 
    return STATUS_SUCCESS;
}

Referenced by InPortWmiRegistration().

InPortWmi()

NTSTATUS NTAPI InPortWmi	(	_In_ PDEVICE_OBJECT	DeviceObject,
		_Inout_ PIRP	Irp
	)

Definition at line 152 of file wmi.c.

{
    NTSTATUS Status;
    SYSCTL_IRP_DISPOSITION Disposition;
    PINPORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
 
    PAGED_CODE();
 
    DPRINT("%s(%p, %p) %X\n", __FUNCTION__, DeviceObject, Irp,
           IoGetCurrentIrpStackLocation(Irp)->MinorFunction);
 
    Status = IoAcquireRemoveLock(&DeviceExtension->RemoveLock, Irp);
    if (!NT_SUCCESS(Status))
    {
        Irp->IoStatus.Information = 0;
        Irp->IoStatus.Status = Status;
        IoCompleteRequest(Irp, IO_NO_INCREMENT);
 
        return Status;
    }
 
    Status = WmiSystemControl(&DeviceExtension->WmiLibInfo,
                              DeviceObject,
                              Irp,
                              &Disposition);
    switch (Disposition)
    {
        case IrpProcessed:
            break;
 
        case IrpNotCompleted:
            IoCompleteRequest(Irp, IO_NO_INCREMENT);
            break;
 
        case IrpForward:
        case IrpNotWmi:
            IoSkipCurrentIrpStackLocation(Irp);
            Status = IoCallDriver(DeviceExtension->Ldo, Irp);
            break;
    }
 
    IoReleaseRemoveLock(&DeviceExtension->RemoveLock, Irp);
 
    return Status;
}

Referenced by DriverEntry().

InPortWmiDeRegistration()

NTSTATUS NTAPI InPortWmiDeRegistration

(

_Inout_ PINPORT_DEVICE_EXTENSION

DeviceExtension

)

Definition at line 140 of file wmi.c.

{
    PAGED_CODE();
 
    return IoWMIRegistrationControl(DeviceExtension->Self,
                                    WMIREG_ACTION_DEREGISTER);
}

Referenced by InPortRemoveDevice().

InPortWmiRegistration()

NTSTATUS NTAPI InPortWmiRegistration

(

_Inout_ PINPORT_DEVICE_EXTENSION

DeviceExtension

)

Definition at line 118 of file wmi.c.

{
    PAGED_CODE();
 
    DeviceExtension->WmiLibInfo.GuidCount = RTL_NUMBER_OF(InPortWmiGuidList);
    DeviceExtension->WmiLibInfo.GuidList = InPortWmiGuidList;
 
    DeviceExtension->WmiLibInfo.QueryWmiRegInfo = InPortQueryWmiRegInfo;
    DeviceExtension->WmiLibInfo.QueryWmiDataBlock = InPortQueryWmiDataBlock;
    DeviceExtension->WmiLibInfo.SetWmiDataBlock = NULL;
    DeviceExtension->WmiLibInfo.SetWmiDataItem = NULL;
    DeviceExtension->WmiLibInfo.ExecuteWmiMethod = NULL;
    DeviceExtension->WmiLibInfo.WmiFunctionControl = NULL;
 
    return IoWMIRegistrationControl(DeviceExtension->Self,
                                    WMIREG_ACTION_REGISTER);
}

Referenced by InPortStartDevice().

Variable Documentation

GuidWmiPortData

GUID GuidWmiPortData = POINTER_PORT_WMI_STD_DATA_GUID

Definition at line 17 of file wmi.c.

InPortWmiGuidList

WMIGUIDREGINFO InPortWmiGuidList[]

Initial value:

=
{
    {&GuidWmiPortData, 1, 0}
}

Definition at line 19 of file wmi.c.

Referenced by InPortQueryWmiDataBlock(), and InPortWmiRegistration().