projects / apple / xnu.git / blame
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|---|---|---|
| 5d5c5d0d A |
1 | /* |
| 2 | * Copyright (c) 2001-2002 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_OSREFERENCE_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 | |
| 10 | * License may not be used to create, or enable the creation or | |
| 11 | * redistribution of, unlawful or unlicensed copies of an Apple operating | |
| 12 | * system, or to circumvent, violate, or enable the circumvention or | |
| 13 | * violation of, any terms of an Apple operating system software license | |
| 14 | * agreement. | |
| 15 | * | |
| 16 | * Please obtain a copy of the License at | |
| 17 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 18 | * file. | |
| 19 | * | |
| 20 | * The Original Code and all software distributed under the License are | |
| 21 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 22 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 23 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 24 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 25 | * Please see the License for the specific language governing rights and | |
| 26 | * limitations under the License. | |
| 27 | * | |
| 28 | * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ | |
| 29 | */ | |
| 30 | ||
| 31 | #ifndef _IOPMWorkArbiter_H_ | |
| 32 | #define _IOPMWorkArbiter_H_ | |
| 33 | ||
| 34 | #include <IOKit/IOWorkLoop.h> | |
| 35 | #include <IOKit/IOEventSource.h> | |
| 36 | #include <IOKit/IOService.h> | |
| 37 | extern "C" { | |
| 38 | #include <kern/queue.h> | |
| 39 | } | |
| 40 | ||
| 41 | class IOPMWorkArbiter : public IOEventSource | |
| 42 | { | |
| 43 | OSDeclareDefaultStructors(IOPMWorkArbiter); | |
| 44 | ||
| 45 | private: | |
| 46 | enum { | |
| 47 | kAllAcked = 0, | |
| 48 | kDriverAcked, | |
| 49 | kRootDomainClamshellChanged | |
| 50 | }; | |
| 51 | ||
| 52 | // Queue of requested states | |
| 53 | struct PMEventEntry | |
| 54 | { | |
| 55 | void *next; | |
| 56 | IOService *target; | |
| 57 | uint16_t actionType; | |
| 58 | uint32_t intArgument; | |
| 59 | }; | |
| 60 | ||
| 61 | IOPMrootDomain *fRootDomain; | |
| 62 | ||
| 63 | void *events; | |
| 64 | IOLock *tmpLock; | |
| 65 | ||
| 66 | protected: | |
| 67 | virtual bool checkForWork(void); | |
| 68 | ||
| 69 | public: | |
| 70 | IOLock *arbiterLock; | |
| 71 | ||
| 72 | //typedef void (*Action)(IOService *target, unsigned long state); | |
| 73 | ||
| 74 | virtual bool init(OSObject *owner, Action action = 0); | |
| 75 | ||
| 76 | // static initialiser | |
| 77 | static IOPMWorkArbiter *pmWorkArbiter(IOPMrootDomain *owner); | |
| 78 | ||
| 79 | // thread launcher | |
| 80 | static void checkForWorkThreadFunc(void *refcon); | |
| 81 | ||
| 82 | /* IOServicePM work */ | |
| 83 | bool allAckedOccurred(IOService *inTarget); | |
| 84 | bool driverAckedOccurred(IOService *inTarget); | |
| 85 | ||
| 86 | /* IOPMrootDomain work */ | |
| 87 | bool clamshellStateChangeOccurred(uint32_t messageValue); | |
| 88 | }; | |
| 89 | ||
| 90 | ||
| 91 | /* | |
| 92 | class PMWorkUnit : public OSObject | |
| 93 | { | |
| 94 | friend class IOService: | |
| 95 | OSDeclareDefaultStructors(PMWorkUnit) | |
| 96 | public: | |
| 97 | uint16_t type; | |
| 98 | IOService *who; | |
| 99 | } | |
| 100 | ||
| 101 | class PMWorkerThread : public OSObject | |
| 102 | { | |
| 103 | friend class IOService; | |
| 104 | OSDeclareDefaultStructors(PMWorkerThread) | |
| 105 | ||
| 106 | public: | |
| 107 | virtual void free(); | |
| 108 | ||
| 109 | static PMWorkerThread *workerThread( void ); | |
| 110 | static void main( PMWorkerThread * self ); | |
| 111 | }; | |
| 112 | */ | |
| 113 | ||
| 114 | #endif /* _IOPMWorkArbiter_H_ */ | |
| 115 |