1*e7776783SApple OSS Distributions /* 2*e7776783SApple OSS Distributions * Copyright (c) 2001-2019 Apple Inc. All rights reserved. 3*e7776783SApple OSS Distributions * 4*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*e7776783SApple OSS Distributions * 6*e7776783SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*e7776783SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*e7776783SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*e7776783SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*e7776783SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*e7776783SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*e7776783SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*e7776783SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*e7776783SApple OSS Distributions * 15*e7776783SApple OSS Distributions * Please obtain a copy of the License at 16*e7776783SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*e7776783SApple OSS Distributions * 18*e7776783SApple OSS Distributions * The Original Code and all software distributed under the License are 19*e7776783SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*e7776783SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*e7776783SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*e7776783SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*e7776783SApple OSS Distributions * Please see the License for the specific language governing rights and 24*e7776783SApple OSS Distributions * limitations under the License. 25*e7776783SApple OSS Distributions * 26*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*e7776783SApple OSS Distributions */ 28*e7776783SApple OSS Distributions 29*e7776783SApple OSS Distributions #ifndef _IOPMPOWERSTATEQUEUE_H_ 30*e7776783SApple OSS Distributions #define _IOPMPOWERSTATEQUEUE_H_ 31*e7776783SApple OSS Distributions 32*e7776783SApple OSS Distributions #include <IOKit/IOEventSource.h> 33*e7776783SApple OSS Distributions #include <IOKit/IOLocks.h> 34*e7776783SApple OSS Distributions #include <kern/queue.h> 35*e7776783SApple OSS Distributions 36*e7776783SApple OSS Distributions typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t); 37*e7776783SApple OSS Distributions 38*e7776783SApple OSS Distributions class IOPMPowerStateQueue : public IOEventSource 39*e7776783SApple OSS Distributions { 40*e7776783SApple OSS Distributions OSDeclareDefaultStructors(IOPMPowerStateQueue); 41*e7776783SApple OSS Distributions 42*e7776783SApple OSS Distributions private: 43*e7776783SApple OSS Distributions struct PowerEventEntry { 44*e7776783SApple OSS Distributions queue_chain_t chain; 45*e7776783SApple OSS Distributions uint32_t eventType; 46*e7776783SApple OSS Distributions void * arg0; 47*e7776783SApple OSS Distributions uint64_t arg1; 48*e7776783SApple OSS Distributions }; 49*e7776783SApple OSS Distributions 50*e7776783SApple OSS Distributions queue_head_t queueHead; 51*e7776783SApple OSS Distributions IOLock * queueLock; 52*e7776783SApple OSS Distributions 53*e7776783SApple OSS Distributions protected: 54*e7776783SApple OSS Distributions virtual bool checkForWork( void ) APPLE_KEXT_OVERRIDE; 55*e7776783SApple OSS Distributions virtual bool init( OSObject * owner, Action action ) APPLE_KEXT_OVERRIDE; 56*e7776783SApple OSS Distributions 57*e7776783SApple OSS Distributions public: 58*e7776783SApple OSS Distributions static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action ); 59*e7776783SApple OSS Distributions 60*e7776783SApple OSS Distributions bool submitPowerEvent( uint32_t eventType, void * arg0 = NULL, uint64_t arg1 = 0 ); 61*e7776783SApple OSS Distributions }; 62*e7776783SApple OSS Distributions 63*e7776783SApple OSS Distributions #endif /* _IOPMPOWERSTATEQUEUE_H_ */ 64