1*d4514f0bSApple OSS Distributions /* 2*d4514f0bSApple OSS Distributions * Copyright (c) 2001-2019 Apple Inc. All rights reserved. 3*d4514f0bSApple OSS Distributions * 4*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*d4514f0bSApple OSS Distributions * 6*d4514f0bSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*d4514f0bSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*d4514f0bSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*d4514f0bSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*d4514f0bSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*d4514f0bSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*d4514f0bSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*d4514f0bSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*d4514f0bSApple OSS Distributions * 15*d4514f0bSApple OSS Distributions * Please obtain a copy of the License at 16*d4514f0bSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*d4514f0bSApple OSS Distributions * 18*d4514f0bSApple OSS Distributions * The Original Code and all software distributed under the License are 19*d4514f0bSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*d4514f0bSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*d4514f0bSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*d4514f0bSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*d4514f0bSApple OSS Distributions * Please see the License for the specific language governing rights and 24*d4514f0bSApple OSS Distributions * limitations under the License. 25*d4514f0bSApple OSS Distributions * 26*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*d4514f0bSApple OSS Distributions */ 28*d4514f0bSApple OSS Distributions 29*d4514f0bSApple OSS Distributions #ifndef _IOPMPOWERSTATEQUEUE_H_ 30*d4514f0bSApple OSS Distributions #define _IOPMPOWERSTATEQUEUE_H_ 31*d4514f0bSApple OSS Distributions 32*d4514f0bSApple OSS Distributions #include <IOKit/IOEventSource.h> 33*d4514f0bSApple OSS Distributions #include <IOKit/IOLocks.h> 34*d4514f0bSApple OSS Distributions #include <kern/queue.h> 35*d4514f0bSApple OSS Distributions 36*d4514f0bSApple OSS Distributions typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t); 37*d4514f0bSApple OSS Distributions 38*d4514f0bSApple OSS Distributions class IOPMPowerStateQueue : public IOEventSource 39*d4514f0bSApple OSS Distributions { 40*d4514f0bSApple OSS Distributions OSDeclareDefaultStructors(IOPMPowerStateQueue); 41*d4514f0bSApple OSS Distributions 42*d4514f0bSApple OSS Distributions private: 43*d4514f0bSApple OSS Distributions struct PowerEventEntry { 44*d4514f0bSApple OSS Distributions queue_chain_t chain; 45*d4514f0bSApple OSS Distributions uint32_t eventType; 46*d4514f0bSApple OSS Distributions void * arg0; 47*d4514f0bSApple OSS Distributions uint64_t arg1; 48*d4514f0bSApple OSS Distributions }; 49*d4514f0bSApple OSS Distributions 50*d4514f0bSApple OSS Distributions queue_head_t queueHead; 51*d4514f0bSApple OSS Distributions IOLock * queueLock; 52*d4514f0bSApple OSS Distributions 53*d4514f0bSApple OSS Distributions protected: 54*d4514f0bSApple OSS Distributions virtual bool checkForWork( void ) APPLE_KEXT_OVERRIDE; 55*d4514f0bSApple OSS Distributions virtual bool init( OSObject * owner, Action action ) APPLE_KEXT_OVERRIDE; 56*d4514f0bSApple OSS Distributions 57*d4514f0bSApple OSS Distributions public: 58*d4514f0bSApple OSS Distributions static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action ); 59*d4514f0bSApple OSS Distributions 60*d4514f0bSApple OSS Distributions bool submitPowerEvent( uint32_t eventType, void * arg0 = NULL, uint64_t arg1 = 0 ); 61*d4514f0bSApple OSS Distributions }; 62*d4514f0bSApple OSS Distributions 63*d4514f0bSApple OSS Distributions #endif /* _IOPMPOWERSTATEQUEUE_H_ */ 64