projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 55e303ae A |
1 | /* |
| 2 | * Copyright (c) 2001-2002 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. | |
| 7 | * | |
| 8 | * This file contains Original Code and/or Modifications of Original Code | |
| 9 | * as defined in and that are subject to the Apple Public Source License | |
| 10 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 11 | * compliance with the License. Please obtain a copy of the License at | |
| 12 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 13 | * file. | |
| 14 | * | |
| 15 | * The Original Code and all software distributed under the License are | |
| 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 20 | * Please see the License for the specific language governing rights and | |
| 21 | * limitations under the License. | |
| 22 | * | |
| 23 | * @APPLE_LICENSE_HEADER_END@ | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef _IOPMPOWERSTATEQUEUE_H_ | |
| 27 | #define _IOPMPOWERSTATEQUEUE_H_ | |
| 28 | ||
| 29 | #include <IOKit/IOWorkLoop.h> | |
| 30 | #include <IOKit/IOEventSource.h> | |
| 31 | #include <IOKit/IOService.h> | |
| 32 | extern "C" { | |
| 33 | #include <kern/queue.h> | |
| 34 | } | |
| 35 | ||
| 36 | class IOPMPowerStateQueue : public IOEventSource | |
| 37 | { | |
| 38 | OSDeclareDefaultStructors(IOPMPowerStateQueue); | |
| 39 | ||
| 40 | private: | |
| 41 | enum { | |
| 42 | kUnIdle = 0 | |
| 43 | }; | |
| 44 | ||
| 45 | // Queue of requested states | |
| 46 | struct PowerChangeEntry | |
| 47 | { | |
| 48 | void *next; | |
| 49 | UInt16 actionType; | |
| 50 | UInt16 state; | |
| 51 | IOService *target; | |
| 52 | }; | |
| 53 | ||
| 54 | void *changes; | |
| 55 | ||
| 56 | protected: | |
| 57 | virtual bool checkForWork(void); | |
| 58 | ||
| 59 | public: | |
| 60 | //typedef void (*Action)(IOService *target, unsigned long state); | |
| 61 | ||
| 62 | virtual bool init(OSObject *owner, Action action = 0); | |
| 63 | ||
| 64 | // static initialiser | |
| 65 | static IOPMPowerStateQueue *PMPowerStateQueue(OSObject *owner); | |
| 66 | ||
| 67 | // Enqueues an activityTickle request to be executed on the workloop | |
| 68 | virtual bool unIdleOccurred(IOService *, unsigned long); | |
| 69 | }; | |
| 70 | ||
| 71 | #endif /* _IOPMPOWERSTATEQUEUE_H_ */ |