1*c54f35caSApple OSS Distributions /* 2*c54f35caSApple OSS Distributions * Copyright (c) 2001-2019 Apple Inc. All rights reserved. 3*c54f35caSApple OSS Distributions * 4*c54f35caSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*c54f35caSApple OSS Distributions * 6*c54f35caSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*c54f35caSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*c54f35caSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*c54f35caSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*c54f35caSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*c54f35caSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*c54f35caSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*c54f35caSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*c54f35caSApple OSS Distributions * 15*c54f35caSApple OSS Distributions * Please obtain a copy of the License at 16*c54f35caSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*c54f35caSApple OSS Distributions * 18*c54f35caSApple OSS Distributions * The Original Code and all software distributed under the License are 19*c54f35caSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*c54f35caSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*c54f35caSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*c54f35caSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*c54f35caSApple OSS Distributions * Please see the License for the specific language governing rights and 24*c54f35caSApple OSS Distributions * limitations under the License. 25*c54f35caSApple OSS Distributions * 26*c54f35caSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*c54f35caSApple OSS Distributions */ 28*c54f35caSApple OSS Distributions 29*c54f35caSApple OSS Distributions #ifndef _IOPMPOWERSTATEQUEUE_H_ 30*c54f35caSApple OSS Distributions #define _IOPMPOWERSTATEQUEUE_H_ 31*c54f35caSApple OSS Distributions 32*c54f35caSApple OSS Distributions #include <IOKit/IOEventSource.h> 33*c54f35caSApple OSS Distributions #include <IOKit/IOLocks.h> 34*c54f35caSApple OSS Distributions #include <kern/queue.h> 35*c54f35caSApple OSS Distributions 36*c54f35caSApple OSS Distributions typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t); 37*c54f35caSApple OSS Distributions 38*c54f35caSApple OSS Distributions class IOPMPowerStateQueue : public IOEventSource 39*c54f35caSApple OSS Distributions { 40*c54f35caSApple OSS Distributions OSDeclareDefaultStructors(IOPMPowerStateQueue); 41*c54f35caSApple OSS Distributions 42*c54f35caSApple OSS Distributions private: 43*c54f35caSApple OSS Distributions struct PowerEventEntry { 44*c54f35caSApple OSS Distributions queue_chain_t chain; 45*c54f35caSApple OSS Distributions uint32_t eventType; 46*c54f35caSApple OSS Distributions void * arg0; 47*c54f35caSApple OSS Distributions uint64_t arg1; 48*c54f35caSApple OSS Distributions }; 49*c54f35caSApple OSS Distributions 50*c54f35caSApple OSS Distributions queue_head_t queueHead; 51*c54f35caSApple OSS Distributions IOLock * queueLock; 52*c54f35caSApple OSS Distributions 53*c54f35caSApple OSS Distributions protected: 54*c54f35caSApple OSS Distributions virtual bool checkForWork( void ) APPLE_KEXT_OVERRIDE; 55*c54f35caSApple OSS Distributions virtual bool init( OSObject * owner, Action action ) APPLE_KEXT_OVERRIDE; 56*c54f35caSApple OSS Distributions 57*c54f35caSApple OSS Distributions public: 58*c54f35caSApple OSS Distributions static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action ); 59*c54f35caSApple OSS Distributions 60*c54f35caSApple OSS Distributions bool submitPowerEvent( uint32_t eventType, void * arg0 = NULL, uint64_t arg1 = 0 ); 61*c54f35caSApple OSS Distributions }; 62*c54f35caSApple OSS Distributions 63*c54f35caSApple OSS Distributions #endif /* _IOPMPOWERSTATEQUEUE_H_ */ 64