NTSTATUS DriverEntry(PDRIVER_OBJECT driver, PUNICODE_STRING registrypath)
{
UNICODE_STRING devicename;
PDEVICE_OBJECT device=NULL;
NTSTATUS status;
DbgPrint("pbfilter: > Entering DriverEntry()\n");
DbgPrint("pbfilter: setting up devicename\n");
RtlInitUnicodeString(&devicename, NT_DEVICE_NAME);
DbgPrint("pbfilter: creating device\n");
status=IoCreateDevice(driver, sizeof(PBINTERNAL), &devicename, FILE_DEVICE_PEERBLOCK, 0, FALSE, &device);
if(NT_SUCCESS(status))
{
UNICODE_STRING devicelink;
DbgPrint("pbfilter: created device, initting internal data\n");
DbgPrint("pbfilter: ... creating symbolic link\n");
RtlInitUnicodeString(&devicelink, DOS_DEVICE_NAME);
status=IoCreateSymbolicLink(&devicelink, &devicename);
DbgPrint("pbfilter: ... setting up irp-handling functions\n");
driver->MajorFunction[IRP_MJ_CREATE]=
driver->MajorFunction[IRP_MJ_CLOSE]=drv_create;
driver->MajorFunction[IRP_MJ_CLEANUP]=drv_cleanup;
driver->MajorFunction[IRP_MJ_DEVICE_CONTROL]=drv_control;
driver->DriverUnload=drv_unload;
device->Flags|=DO_BUFFERED_IO;
DbgPrint("pbfilter: ... setting up device extension\n");
g_internal=device->DeviceExtension;
DbgPrint("pbfilter: ... initializing lock and queue\n");
KeInitializeSpinLock(&g_internal->rangeslock);
KeInitializeSpinLock(&g_internal->destinationportslock);
KeInitializeSpinLock(&g_internal->sourceportslock);
InitNotificationQueue(&g_internal->queue);
DbgPrint("pbfilter: ... resetting counters\n");
g_internal->blockedcount = 0;
g_internal->allowedcount = 0;
g_internal->destinationportcount = 0;
g_internal->sourceportcount = 0;
DbgPrint("pbfilter: internal data initted\n");
}
if(!NT_SUCCESS(status))
{
DbgPrint("pbfilter: * ERROR: couldn't create device, status:[0x%lX] . . . unloading\n", status);
drv_unload(driver);
}
DbgPrint("pbfilter: < Leaving DriverEntry(), status:[0x%lX]\n", status);
return status;
}
static int stm_drm_platform_remove(struct platform_device *pdev)
{
struct drm_device *ddev = platform_get_drvdata(pdev);
DRM_DEBUG("%s\n", __func__);
drm_dev_unregister(ddev);
drv_unload(ddev);
drm_dev_put(ddev);
return 0;
}
