/* * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. * * EventIO.m - Event System MiG interface for driver control and status. * * HISTORY * 2-April-92 Mike Paquette at NeXT * Created. */ #include <IOKit/system.h> #include <IOKit/hidsystem/IOHIDTypes.h> #include <IOKit/hidsystem/IOHIDSystem.h> #include <IOKit/hidsystem/IOHIDShared.h> #include <IOKit/hidsystem/ev_private.h> /* Per-machine configuration info */ /* * Additional kernel API to drivers using the Event Driver */ int EventCoalesceDisplayCmd( int cmd, int oldcmd ) { static const char coalesce[4][4] = { /* nop */ {EVNOP, EVHIDE, EVSHOW, EVMOVE}, /* hide */ {EVHIDE, EVHIDE, EVNOP, EVSHOW}, /* show */ {EVSHOW, EVNOP, EVSHOW, EVSHOW}, /* move */ {EVMOVE, EVHIDE, EVSHOW, EVMOVE} }; if ( cmd < EVLEVEL ) // coalesce EVNOP thru EVMOVE only cmd = coalesce[oldcmd & 3][cmd & 3]; return cmd; }