mirror of
https://github.com/reactos/reactos.git
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84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
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/*
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* PROJECT: ReactOS InPort (Bus) Mouse Driver
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: I/O control handling
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* COPYRIGHT: Copyright 2020 Dmitry Borisov (di.sean@protonmail.com)
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*/
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/* INCLUDES *******************************************************************/
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#include "inport.h"
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ******************************************************************/
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NTSTATUS
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NTAPI
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InPortInternalDeviceControl(
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_In_ PDEVICE_OBJECT DeviceObject,
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_Inout_ PIRP Irp)
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{
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NTSTATUS Status;
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PCONNECT_DATA ConnectData;
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PINPORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
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PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
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DPRINT("%s(%p, %p) 0x%X\n", __FUNCTION__, DeviceObject, Irp,
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IrpSp->Parameters.DeviceIoControl.IoControlCode);
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switch (IrpSp->Parameters.DeviceIoControl.IoControlCode)
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{
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case IOCTL_INTERNAL_MOUSE_CONNECT:
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if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(CONNECT_DATA))
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{
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Status = STATUS_INVALID_PARAMETER;
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break;
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}
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/* Already connected */
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if (DeviceExtension->ClassService)
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{
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Status = STATUS_SHARING_VIOLATION;
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break;
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}
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ConnectData = IrpSp->Parameters.DeviceIoControl.Type3InputBuffer;
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DeviceExtension->ClassDeviceObject = ConnectData->ClassDeviceObject;
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DeviceExtension->ClassService = ConnectData->ClassService;
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Status = STATUS_SUCCESS;
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break;
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case IOCTL_INTERNAL_MOUSE_DISCONNECT:
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DeviceExtension->ClassService = NULL;
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Status = STATUS_SUCCESS;
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break;
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case IOCTL_MOUSE_QUERY_ATTRIBUTES:
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(MOUSE_ATTRIBUTES))
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{
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Status = STATUS_BUFFER_TOO_SMALL;
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break;
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}
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*(PMOUSE_ATTRIBUTES)Irp->AssociatedIrp.SystemBuffer = DeviceExtension->MouseAttributes;
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Irp->IoStatus.Information = sizeof(MOUSE_ATTRIBUTES);
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Status = STATUS_SUCCESS;
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break;
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default:
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Status = STATUS_INVALID_DEVICE_REQUEST;
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break;
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}
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Irp->IoStatus.Status = Status;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return Status;
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}
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