1*4d495c6eSApple OSS Distributions /* 2*4d495c6eSApple OSS Distributions * Copyright (c) 2001-2019 Apple Inc. All rights reserved. 3*4d495c6eSApple OSS Distributions * 4*4d495c6eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*4d495c6eSApple OSS Distributions * 6*4d495c6eSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*4d495c6eSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*4d495c6eSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*4d495c6eSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*4d495c6eSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*4d495c6eSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*4d495c6eSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*4d495c6eSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*4d495c6eSApple OSS Distributions * 15*4d495c6eSApple OSS Distributions * Please obtain a copy of the License at 16*4d495c6eSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*4d495c6eSApple OSS Distributions * 18*4d495c6eSApple OSS Distributions * The Original Code and all software distributed under the License are 19*4d495c6eSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*4d495c6eSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*4d495c6eSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*4d495c6eSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*4d495c6eSApple OSS Distributions * Please see the License for the specific language governing rights and 24*4d495c6eSApple OSS Distributions * limitations under the License. 25*4d495c6eSApple OSS Distributions * 26*4d495c6eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*4d495c6eSApple OSS Distributions */ 28*4d495c6eSApple OSS Distributions 29*4d495c6eSApple OSS Distributions #ifndef _IOPMPOWERSTATEQUEUE_H_ 30*4d495c6eSApple OSS Distributions #define _IOPMPOWERSTATEQUEUE_H_ 31*4d495c6eSApple OSS Distributions 32*4d495c6eSApple OSS Distributions #include <IOKit/IOEventSource.h> 33*4d495c6eSApple OSS Distributions #include <IOKit/IOLocks.h> 34*4d495c6eSApple OSS Distributions #include <kern/queue.h> 35*4d495c6eSApple OSS Distributions 36*4d495c6eSApple OSS Distributions typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t); 37*4d495c6eSApple OSS Distributions 38*4d495c6eSApple OSS Distributions class IOPMPowerStateQueue : public IOEventSource 39*4d495c6eSApple OSS Distributions { 40*4d495c6eSApple OSS Distributions OSDeclareDefaultStructors(IOPMPowerStateQueue); 41*4d495c6eSApple OSS Distributions 42*4d495c6eSApple OSS Distributions private: 43*4d495c6eSApple OSS Distributions struct PowerEventEntry { 44*4d495c6eSApple OSS Distributions queue_chain_t chain; 45*4d495c6eSApple OSS Distributions uint32_t eventType; 46*4d495c6eSApple OSS Distributions void * arg0; 47*4d495c6eSApple OSS Distributions uint64_t arg1; 48*4d495c6eSApple OSS Distributions }; 49*4d495c6eSApple OSS Distributions 50*4d495c6eSApple OSS Distributions queue_head_t queueHead; 51*4d495c6eSApple OSS Distributions IOLock * queueLock; 52*4d495c6eSApple OSS Distributions 53*4d495c6eSApple OSS Distributions protected: 54*4d495c6eSApple OSS Distributions virtual bool checkForWork( void ) APPLE_KEXT_OVERRIDE; 55*4d495c6eSApple OSS Distributions virtual bool init( OSObject * owner, Action action ) APPLE_KEXT_OVERRIDE; 56*4d495c6eSApple OSS Distributions 57*4d495c6eSApple OSS Distributions public: 58*4d495c6eSApple OSS Distributions static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action ); 59*4d495c6eSApple OSS Distributions 60*4d495c6eSApple OSS Distributions bool submitPowerEvent( uint32_t eventType, void * arg0 = NULL, uint64_t arg1 = 0 ); 61*4d495c6eSApple OSS Distributions }; 62*4d495c6eSApple OSS Distributions 63*4d495c6eSApple OSS Distributions #endif /* _IOPMPOWERSTATEQUEUE_H_ */ 64