projects / apple / xnu.git / blame
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|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| e5568f75 A |
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. | |
| 1c79356b | 11 | * |
| e5568f75 A |
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 | |
| 1c79356b A |
14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| e5568f75 A |
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. | |
| 1c79356b A |
19 | * |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | // | |
| 23 | // Backdoor hack for Intel Clock. | |
| 24 | // | |
| 25 | // | |
| 26 | ||
| 27 | #include "AppleIntelClock.h" | |
| 28 | ||
| 29 | #define super IOService | |
| 30 | OSDefineMetaClassAndStructors(AppleIntelClock, IOService); | |
| 31 | ||
| 32 | extern "C" { | |
| 33 | extern void hardclock(void); | |
| 34 | }; | |
| 35 | ||
| 36 | bool | |
| 37 | AppleIntelClock::start(IOService *provider) | |
| 38 | { | |
| 39 | if (!super::start(provider)) | |
| 40 | return false; | |
| 41 | ||
| 42 | provider->registerInterrupt(kIRQ_Clock, 0, (IOInterruptAction) hardclock); | |
| 43 | provider->enableInterrupt(kIRQ_Clock); | |
| 44 | ||
| 45 | publishResource("IORTC", this); | |
| 46 | return true; | |
| 47 | } |