reactos/drivers/input/sermouse/sermouse.c

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/*
* PROJECT: ReactOS Serial mouse driver
* LICENSE: GPL - See COPYING in the top level directory
* FILE: drivers/input/sermouse/fdo.c
* PURPOSE: Serial mouse driver entry point
* PROGRAMMERS: Copyright 2005-2006 Herv<EFBFBD> Poussineau (hpoussin@reactos.org)
*/
#include "sermouse.h"
#include <debug.h>
static DRIVER_UNLOAD DriverUnload;
static DRIVER_DISPATCH IrpStub;
DRIVER_INITIALIZE DriverEntry;
static VOID NTAPI
DriverUnload(IN PDRIVER_OBJECT DriverObject)
{
// nothing to do here yet
}
static NTSTATUS NTAPI
IrpStub(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
ERR_(SERMOUSE, "Irp stub for major function 0x%lx\n",
IoGetCurrentIrpStackLocation(Irp)->MajorFunction);
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_NOT_SUPPORTED;
}
static NTSTATUS
ReadRegistryEntries(
IN PUNICODE_STRING RegistryPath,
IN PSERMOUSE_DRIVER_EXTENSION DriverExtension)
{
UNICODE_STRING ParametersRegistryKey;
RTL_QUERY_REGISTRY_TABLE Parameters[2];
NTSTATUS Status;
ULONG DefaultNumberOfButtons = 2;
ParametersRegistryKey.Length = 0;
ParametersRegistryKey.MaximumLength = RegistryPath->Length + sizeof(L"\\Parameters") + sizeof(UNICODE_NULL);
ParametersRegistryKey.Buffer = ExAllocatePoolWithTag(PagedPool, ParametersRegistryKey.MaximumLength, SERMOUSE_TAG);
if (!ParametersRegistryKey.Buffer)
{
WARN_(SERMOUSE, "ExAllocatePoolWithTag() failed\n");
return STATUS_NO_MEMORY;
}
RtlCopyUnicodeString(&ParametersRegistryKey, RegistryPath);
RtlAppendUnicodeToString(&ParametersRegistryKey, L"\\Parameters");
ParametersRegistryKey.Buffer[ParametersRegistryKey.Length / sizeof(WCHAR)] = UNICODE_NULL;
RtlZeroMemory(Parameters, sizeof(Parameters));
Parameters[0].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
Parameters[0].Name = L"NumberOfButtons";
Parameters[0].EntryContext = &DriverExtension->NumberOfButtons;
Parameters[0].DefaultType = REG_DWORD;
Parameters[0].DefaultData = &DefaultNumberOfButtons;
Parameters[0].DefaultLength = sizeof(ULONG);
Status = RtlQueryRegistryValues(
RTL_REGISTRY_ABSOLUTE,
ParametersRegistryKey.Buffer,
Parameters,
NULL,
NULL);
if (NT_SUCCESS(Status))
{
/* Check values */
}
else if (Status == STATUS_OBJECT_NAME_NOT_FOUND)
{
/* Registry path doesn't exist. Set defaults */
DriverExtension->NumberOfButtons = (USHORT)DefaultNumberOfButtons;
Status = STATUS_SUCCESS;
}
ExFreePoolWithTag(ParametersRegistryKey.Buffer, SERMOUSE_TAG);
return Status;
}
/*
* Standard DriverEntry method.
*/
NTSTATUS NTAPI
DriverEntry(
IN PDRIVER_OBJECT DriverObject,
IN PUNICODE_STRING RegistryPath)
{
PSERMOUSE_DRIVER_EXTENSION DriverExtension;
ULONG i;
NTSTATUS Status;
Status = IoAllocateDriverObjectExtension(
DriverObject,
DriverObject,
sizeof(SERMOUSE_DRIVER_EXTENSION),
(PVOID*)&DriverExtension);
if (!NT_SUCCESS(Status))
{
WARN_(SERMOUSE, "IoAllocateDriverObjectExtension() failed with status 0x%08lx\n", Status);
return Status;
}
RtlZeroMemory(DriverExtension, sizeof(SERMOUSE_DRIVER_EXTENSION));
Status = ReadRegistryEntries(RegistryPath, DriverExtension);
if (!NT_SUCCESS(Status))
{
WARN_(SERMOUSE, "ReadRegistryEntries() failed with status 0x%08lx\n", Status);
return Status;
}
DriverObject->DriverUnload = DriverUnload;
DriverObject->DriverExtension->AddDevice = SermouseAddDevice;
for (i = 0; i <= IRP_MJ_MAXIMUM_FUNCTION; i++)
DriverObject->MajorFunction[i] = IrpStub;
DriverObject->MajorFunction[IRP_MJ_CREATE] = SermouseCreate;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = SermouseClose;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = SermouseCleanup;
//DriverObject->MajorFunction[IRP_MJ_READ] = SermouseRead;
//DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = SermouseDeviceControl;
DriverObject->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = SermouseInternalDeviceControl;
//DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = SermouseQueryInformation;
DriverObject->MajorFunction[IRP_MJ_PNP] = SermousePnp;
//DriverObject->MajorFunction[IRP_MJ_POWER] = SermousePower;
return STATUS_SUCCESS;
}