1/* 2 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28#include <IOKit/pwr_mgt/IOPM.h> 29#include <IOKit/IOService.h> 30 31static char rootDomain[ ] = "IOPMrootDomain"; 32static char displayDevice[ ] = "IODisplayWrangler"; 33static bool rootRegistered; 34static bool displayRegistered; 35static IOService * root; 36static IOService * display; 37 38void IOPMLog(const char * who,unsigned long event,unsigned long param1, unsigned long param2) 39{ 40// kprintf("%s %02d %08x %08x\n",who,event,param1,param2); 41} 42 43 44void IOPMRegisterDevice(const char * who, IOService * theDevice) 45{ 46 47 if ( strcmp(rootDomain,who) == 0 ) { // root power domain is registering 48 theDevice->youAreRoot(); 49 rootRegistered = true; 50 root = theDevice; 51 if ( displayRegistered ) { 52 root->addChild ( display ); 53 } 54 } 55 else{ 56 if ( strcmp(displayDevice,who) == 0 ) { // somebody else is registering 57 displayRegistered = true; // save pointer to display wrangler 58 display = theDevice; 59 } 60 if ( rootRegistered ) { // if not root domain, then it's 61 root->addChild ( theDevice ); // one of its children 62 } 63 } 64} 65 66