/**
Initializes timer support.
**/
VOID
CoreInitializeTimer (
VOID
)
{
EFI_STATUS Status;
Status = CoreCreateEventInternal (
EVT_NOTIFY_SIGNAL,
TPL_HIGH_LEVEL - 1,
CoreCheckTimers,
NULL,
NULL,
&mEfiCheckTimerEvent
);
ASSERT_EFI_ERROR (Status);
}
/**
Creates an event in a group.
@param Type The type of event to create and its mode and
attributes
@param NotifyTpl The task priority level of event notifications
@param NotifyFunction Pointer to the events notification function
@param NotifyContext Pointer to the notification functions context;
corresponds to parameter "Context" in the
notification function
@param EventGroup GUID for EventGroup if NULL act the same as
gBS->CreateEvent().
@param Event Pointer to the newly created event if the call
succeeds; undefined otherwise
@retval EFI_SUCCESS The event structure was created
@retval EFI_INVALID_PARAMETER One of the parameters has an invalid value
@retval EFI_OUT_OF_RESOURCES The event could not be allocated
**/
EFI_STATUS
EFIAPI
CoreCreateEventEx (
IN UINT32 Type,
IN EFI_TPL NotifyTpl,
IN EFI_EVENT_NOTIFY NotifyFunction, OPTIONAL
IN CONST VOID *NotifyContext, OPTIONAL
IN CONST EFI_GUID *EventGroup, OPTIONAL
OUT EFI_EVENT *Event
)
{
//
// If it's a notify type of event, check for invalid NotifyTpl
//
if ((Type & (EVT_NOTIFY_WAIT | EVT_NOTIFY_SIGNAL)) != 0) {
if (NotifyTpl != TPL_APPLICATION &&
NotifyTpl != TPL_CALLBACK &&
NotifyTpl != TPL_NOTIFY) {
return EFI_INVALID_PARAMETER;
}
}
return CoreCreateEventInternal (Type, NotifyTpl, NotifyFunction, NotifyContext, EventGroup, Event);
}
