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Annotation of XNU/iokit/Kernel/PMmisc.cpp, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: #include <IOKit/pwr_mgt/IOPM.h>
        !            23: #include <IOKit/IOService.h>
        !            24: 
        !            25: extern "C" {
        !            26: extern void kprintf(const char *, ...);
        !            27: }
        !            28: 
        !            29: static char rootDomain[ ] = "IOPMrootDomain";
        !            30: static char displayDevice[ ] = "IODisplayWrangler";
        !            31: static bool rootRegistered;
        !            32: static bool displayRegistered;
        !            33: static IOService * root;
        !            34: static IOService * display;
        !            35: 
        !            36: void IOPMLog(const char * who,unsigned long event,unsigned long param1, unsigned long param2)
        !            37: {
        !            38: //    kprintf("%s %02d %08x %08x\n",who,event,param1,param2);
        !            39: }
        !            40: 
        !            41: 
        !            42: void IOPMRegisterDevice(const char * who, IOService * theDevice)
        !            43: {
        !            44: 
        !            45:     if ( strcmp(rootDomain,who) == 0 ) {                       // root power domain is registering
        !            46:         theDevice->youAreRoot();
        !            47:         rootRegistered = true;
        !            48:         root = theDevice;
        !            49:         if ( displayRegistered ) {
        !            50:             root->addChild ( display );
        !            51:         }
        !            52:     }
        !            53:     else{
        !            54:         if ( strcmp(displayDevice,who) == 0 ) {                        // somebody else is registering
        !            55:             displayRegistered = true;                          // save pointer to display wrangler
        !            56:             display = theDevice;
        !            57:         }
        !            58:         if ( rootRegistered ) {                                        // if not root domain, then it's
        !            59:             root->addChild ( theDevice );                              // one of its children
        !            60:         }
        !            61:     }
        !            62: }
        !            63: 

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