1*0f4c859eSApple OSS Distributions /* 2*0f4c859eSApple OSS Distributions * Copyright (c) 2001-2019 Apple Inc. All rights reserved. 3*0f4c859eSApple OSS Distributions * 4*0f4c859eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*0f4c859eSApple OSS Distributions * 6*0f4c859eSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*0f4c859eSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*0f4c859eSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*0f4c859eSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*0f4c859eSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*0f4c859eSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*0f4c859eSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*0f4c859eSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*0f4c859eSApple OSS Distributions * 15*0f4c859eSApple OSS Distributions * Please obtain a copy of the License at 16*0f4c859eSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*0f4c859eSApple OSS Distributions * 18*0f4c859eSApple OSS Distributions * The Original Code and all software distributed under the License are 19*0f4c859eSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*0f4c859eSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*0f4c859eSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*0f4c859eSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*0f4c859eSApple OSS Distributions * Please see the License for the specific language governing rights and 24*0f4c859eSApple OSS Distributions * limitations under the License. 25*0f4c859eSApple OSS Distributions * 26*0f4c859eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*0f4c859eSApple OSS Distributions */ 28*0f4c859eSApple OSS Distributions 29*0f4c859eSApple OSS Distributions #ifndef _IOPMPOWERSTATEQUEUE_H_ 30*0f4c859eSApple OSS Distributions #define _IOPMPOWERSTATEQUEUE_H_ 31*0f4c859eSApple OSS Distributions 32*0f4c859eSApple OSS Distributions #include <IOKit/IOEventSource.h> 33*0f4c859eSApple OSS Distributions #include <IOKit/IOLocks.h> 34*0f4c859eSApple OSS Distributions #include <kern/queue.h> 35*0f4c859eSApple OSS Distributions 36*0f4c859eSApple OSS Distributions typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t); 37*0f4c859eSApple OSS Distributions 38*0f4c859eSApple OSS Distributions class IOPMPowerStateQueue : public IOEventSource 39*0f4c859eSApple OSS Distributions { 40*0f4c859eSApple OSS Distributions OSDeclareDefaultStructors(IOPMPowerStateQueue); 41*0f4c859eSApple OSS Distributions 42*0f4c859eSApple OSS Distributions private: 43*0f4c859eSApple OSS Distributions struct PowerEventEntry { 44*0f4c859eSApple OSS Distributions queue_chain_t chain; 45*0f4c859eSApple OSS Distributions uint32_t eventType; 46*0f4c859eSApple OSS Distributions void * arg0; 47*0f4c859eSApple OSS Distributions uint64_t arg1; 48*0f4c859eSApple OSS Distributions }; 49*0f4c859eSApple OSS Distributions 50*0f4c859eSApple OSS Distributions queue_head_t queueHead; 51*0f4c859eSApple OSS Distributions IOLock * queueLock; 52*0f4c859eSApple OSS Distributions 53*0f4c859eSApple OSS Distributions protected: 54*0f4c859eSApple OSS Distributions virtual bool checkForWork( void ) APPLE_KEXT_OVERRIDE; 55*0f4c859eSApple OSS Distributions virtual bool init( OSObject * owner, Action action ) APPLE_KEXT_OVERRIDE; 56*0f4c859eSApple OSS Distributions 57*0f4c859eSApple OSS Distributions public: 58*0f4c859eSApple OSS Distributions static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action ); 59*0f4c859eSApple OSS Distributions 60*0f4c859eSApple OSS Distributions bool submitPowerEvent( uint32_t eventType, void * arg0 = NULL, uint64_t arg1 = 0 ); 61*0f4c859eSApple OSS Distributions }; 62*0f4c859eSApple OSS Distributions 63*0f4c859eSApple OSS Distributions #endif /* _IOPMPOWERSTATEQUEUE_H_ */ 64