1*bbb1b6f9SApple OSS Distributions /* 2*bbb1b6f9SApple OSS Distributions * Copyright (c) 2001-2019 Apple Inc. All rights reserved. 3*bbb1b6f9SApple OSS Distributions * 4*bbb1b6f9SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*bbb1b6f9SApple OSS Distributions * 6*bbb1b6f9SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*bbb1b6f9SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*bbb1b6f9SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*bbb1b6f9SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*bbb1b6f9SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*bbb1b6f9SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*bbb1b6f9SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*bbb1b6f9SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*bbb1b6f9SApple OSS Distributions * 15*bbb1b6f9SApple OSS Distributions * Please obtain a copy of the License at 16*bbb1b6f9SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*bbb1b6f9SApple OSS Distributions * 18*bbb1b6f9SApple OSS Distributions * The Original Code and all software distributed under the License are 19*bbb1b6f9SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*bbb1b6f9SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*bbb1b6f9SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*bbb1b6f9SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*bbb1b6f9SApple OSS Distributions * Please see the License for the specific language governing rights and 24*bbb1b6f9SApple OSS Distributions * limitations under the License. 25*bbb1b6f9SApple OSS Distributions * 26*bbb1b6f9SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*bbb1b6f9SApple OSS Distributions */ 28*bbb1b6f9SApple OSS Distributions 29*bbb1b6f9SApple OSS Distributions #ifndef _IOPMPOWERSTATEQUEUE_H_ 30*bbb1b6f9SApple OSS Distributions #define _IOPMPOWERSTATEQUEUE_H_ 31*bbb1b6f9SApple OSS Distributions 32*bbb1b6f9SApple OSS Distributions #include <IOKit/IOEventSource.h> 33*bbb1b6f9SApple OSS Distributions #include <IOKit/IOLocks.h> 34*bbb1b6f9SApple OSS Distributions #include <kern/queue.h> 35*bbb1b6f9SApple OSS Distributions 36*bbb1b6f9SApple OSS Distributions typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t); 37*bbb1b6f9SApple OSS Distributions 38*bbb1b6f9SApple OSS Distributions class IOPMPowerStateQueue : public IOEventSource 39*bbb1b6f9SApple OSS Distributions { 40*bbb1b6f9SApple OSS Distributions OSDeclareDefaultStructors(IOPMPowerStateQueue); 41*bbb1b6f9SApple OSS Distributions 42*bbb1b6f9SApple OSS Distributions private: 43*bbb1b6f9SApple OSS Distributions struct PowerEventEntry { 44*bbb1b6f9SApple OSS Distributions queue_chain_t chain; 45*bbb1b6f9SApple OSS Distributions uint32_t eventType; 46*bbb1b6f9SApple OSS Distributions void * arg0; 47*bbb1b6f9SApple OSS Distributions uint64_t arg1; 48*bbb1b6f9SApple OSS Distributions }; 49*bbb1b6f9SApple OSS Distributions 50*bbb1b6f9SApple OSS Distributions queue_head_t queueHead; 51*bbb1b6f9SApple OSS Distributions IOLock * queueLock; 52*bbb1b6f9SApple OSS Distributions 53*bbb1b6f9SApple OSS Distributions protected: 54*bbb1b6f9SApple OSS Distributions virtual bool checkForWork( void ) APPLE_KEXT_OVERRIDE; 55*bbb1b6f9SApple OSS Distributions virtual bool init( OSObject * owner, Action action ) APPLE_KEXT_OVERRIDE; 56*bbb1b6f9SApple OSS Distributions 57*bbb1b6f9SApple OSS Distributions public: 58*bbb1b6f9SApple OSS Distributions static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action ); 59*bbb1b6f9SApple OSS Distributions 60*bbb1b6f9SApple OSS Distributions bool submitPowerEvent( uint32_t eventType, void * arg0 = NULL, uint64_t arg1 = 0 ); 61*bbb1b6f9SApple OSS Distributions }; 62*bbb1b6f9SApple OSS Distributions 63*bbb1b6f9SApple OSS Distributions #endif /* _IOPMPOWERSTATEQUEUE_H_ */ 64