1*d8b80295SApple OSS Distributions /* 2*d8b80295SApple OSS Distributions * Copyright (c) 2001-2019 Apple Inc. All rights reserved. 3*d8b80295SApple OSS Distributions * 4*d8b80295SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*d8b80295SApple OSS Distributions * 6*d8b80295SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*d8b80295SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*d8b80295SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*d8b80295SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*d8b80295SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*d8b80295SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*d8b80295SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*d8b80295SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*d8b80295SApple OSS Distributions * 15*d8b80295SApple OSS Distributions * Please obtain a copy of the License at 16*d8b80295SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*d8b80295SApple OSS Distributions * 18*d8b80295SApple OSS Distributions * The Original Code and all software distributed under the License are 19*d8b80295SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*d8b80295SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*d8b80295SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*d8b80295SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*d8b80295SApple OSS Distributions * Please see the License for the specific language governing rights and 24*d8b80295SApple OSS Distributions * limitations under the License. 25*d8b80295SApple OSS Distributions * 26*d8b80295SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*d8b80295SApple OSS Distributions */ 28*d8b80295SApple OSS Distributions 29*d8b80295SApple OSS Distributions #ifndef _IOPMPOWERSTATEQUEUE_H_ 30*d8b80295SApple OSS Distributions #define _IOPMPOWERSTATEQUEUE_H_ 31*d8b80295SApple OSS Distributions 32*d8b80295SApple OSS Distributions #include <IOKit/IOEventSource.h> 33*d8b80295SApple OSS Distributions #include <IOKit/IOLocks.h> 34*d8b80295SApple OSS Distributions #include <kern/queue.h> 35*d8b80295SApple OSS Distributions 36*d8b80295SApple OSS Distributions typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t); 37*d8b80295SApple OSS Distributions 38*d8b80295SApple OSS Distributions class IOPMPowerStateQueue : public IOEventSource 39*d8b80295SApple OSS Distributions { 40*d8b80295SApple OSS Distributions OSDeclareDefaultStructors(IOPMPowerStateQueue); 41*d8b80295SApple OSS Distributions 42*d8b80295SApple OSS Distributions private: 43*d8b80295SApple OSS Distributions struct PowerEventEntry { 44*d8b80295SApple OSS Distributions queue_chain_t chain; 45*d8b80295SApple OSS Distributions uint32_t eventType; 46*d8b80295SApple OSS Distributions void * arg0; 47*d8b80295SApple OSS Distributions uint64_t arg1; 48*d8b80295SApple OSS Distributions }; 49*d8b80295SApple OSS Distributions 50*d8b80295SApple OSS Distributions queue_head_t queueHead; 51*d8b80295SApple OSS Distributions IOLock * queueLock; 52*d8b80295SApple OSS Distributions 53*d8b80295SApple OSS Distributions protected: 54*d8b80295SApple OSS Distributions virtual bool checkForWork( void ) APPLE_KEXT_OVERRIDE; 55*d8b80295SApple OSS Distributions virtual bool init( OSObject * owner, Action action ) APPLE_KEXT_OVERRIDE; 56*d8b80295SApple OSS Distributions 57*d8b80295SApple OSS Distributions public: 58*d8b80295SApple OSS Distributions static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action ); 59*d8b80295SApple OSS Distributions 60*d8b80295SApple OSS Distributions bool submitPowerEvent( uint32_t eventType, void * arg0 = NULL, uint64_t arg1 = 0 ); 61*d8b80295SApple OSS Distributions }; 62*d8b80295SApple OSS Distributions 63*d8b80295SApple OSS Distributions #endif /* _IOPMPOWERSTATEQUEUE_H_ */ 64