/* * @APPLE_LICENSE_HEADER_START@ * * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The 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, QUIET ENJOYMENT 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; }