| | 1 | /* |
| | 2 | * Copyright (c) 2001-2002 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 | |
| | 29 | #ifndef _IOPMPOWERSTATEQUEUE_H_ |
| | 30 | #define _IOPMPOWERSTATEQUEUE_H_ |
| | 31 | |
| | 32 | #include <IOKit/IOEventSource.h> |
| | 33 | #include <IOKit/IOLocks.h> |
| | 34 | #include <kern/queue.h> |
| | 35 | |
| | 36 | typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t); |
| | 37 | |
| | 38 | class IOPMPowerStateQueue : public IOEventSource |
| | 39 | { |
| | 40 | OSDeclareDefaultStructors(IOPMPowerStateQueue) |
| | 41 | |
| | 42 | private: |
| | 43 | struct PowerEventEntry { |
| | 44 | queue_chain_t chain; |
| | 45 | uint32_t eventType; |
| | 46 | void * arg0; |
| | 47 | uint64_t arg1; |
| | 48 | }; |
| | 49 | |
| | 50 | queue_head_t queueHead; |
| | 51 | IOLock * queueLock; |
| | 52 | |
| | 53 | protected: |
| | 54 | virtual bool checkForWork( void ); |
| | 55 | virtual bool init( OSObject * owner, Action action ); |
| | 56 | |
| | 57 | public: |
| | 58 | static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action ); |
| | 59 | |
| | 60 | bool submitPowerEvent( uint32_t eventType, void * arg0 = 0, uint64_t arg1 = 0 ); |
| | 61 | }; |
| | 62 | |
| | 63 | #endif /* _IOPMPOWERSTATEQUEUE_H_ */ |
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