1*fdd8201dSApple OSS Distributions /* 2*fdd8201dSApple OSS Distributions * Copyright (c) 2001-2019 Apple Inc. All rights reserved. 3*fdd8201dSApple OSS Distributions * 4*fdd8201dSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*fdd8201dSApple OSS Distributions * 6*fdd8201dSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*fdd8201dSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*fdd8201dSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*fdd8201dSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*fdd8201dSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*fdd8201dSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*fdd8201dSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*fdd8201dSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*fdd8201dSApple OSS Distributions * 15*fdd8201dSApple OSS Distributions * Please obtain a copy of the License at 16*fdd8201dSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*fdd8201dSApple OSS Distributions * 18*fdd8201dSApple OSS Distributions * The Original Code and all software distributed under the License are 19*fdd8201dSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*fdd8201dSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*fdd8201dSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*fdd8201dSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*fdd8201dSApple OSS Distributions * Please see the License for the specific language governing rights and 24*fdd8201dSApple OSS Distributions * limitations under the License. 25*fdd8201dSApple OSS Distributions * 26*fdd8201dSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*fdd8201dSApple OSS Distributions */ 28*fdd8201dSApple OSS Distributions 29*fdd8201dSApple OSS Distributions #ifndef _IOPMPOWERSTATEQUEUE_H_ 30*fdd8201dSApple OSS Distributions #define _IOPMPOWERSTATEQUEUE_H_ 31*fdd8201dSApple OSS Distributions 32*fdd8201dSApple OSS Distributions #include <IOKit/IOEventSource.h> 33*fdd8201dSApple OSS Distributions #include <IOKit/IOLocks.h> 34*fdd8201dSApple OSS Distributions #include <kern/queue.h> 35*fdd8201dSApple OSS Distributions 36*fdd8201dSApple OSS Distributions typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t); 37*fdd8201dSApple OSS Distributions 38*fdd8201dSApple OSS Distributions class IOPMPowerStateQueue : public IOEventSource 39*fdd8201dSApple OSS Distributions { 40*fdd8201dSApple OSS Distributions OSDeclareDefaultStructors(IOPMPowerStateQueue); 41*fdd8201dSApple OSS Distributions 42*fdd8201dSApple OSS Distributions private: 43*fdd8201dSApple OSS Distributions struct PowerEventEntry { 44*fdd8201dSApple OSS Distributions queue_chain_t chain; 45*fdd8201dSApple OSS Distributions uint32_t eventType; 46*fdd8201dSApple OSS Distributions void * arg0; 47*fdd8201dSApple OSS Distributions uint64_t arg1; 48*fdd8201dSApple OSS Distributions }; 49*fdd8201dSApple OSS Distributions 50*fdd8201dSApple OSS Distributions queue_head_t queueHead; 51*fdd8201dSApple OSS Distributions IOLock * queueLock; 52*fdd8201dSApple OSS Distributions 53*fdd8201dSApple OSS Distributions protected: 54*fdd8201dSApple OSS Distributions virtual bool checkForWork( void ) APPLE_KEXT_OVERRIDE; 55*fdd8201dSApple OSS Distributions virtual bool init( OSObject * owner, Action action ) APPLE_KEXT_OVERRIDE; 56*fdd8201dSApple OSS Distributions 57*fdd8201dSApple OSS Distributions public: 58*fdd8201dSApple OSS Distributions static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action ); 59*fdd8201dSApple OSS Distributions 60*fdd8201dSApple OSS Distributions bool submitPowerEvent( uint32_t eventType, void * arg0 = NULL, uint64_t arg1 = 0 ); 61*fdd8201dSApple OSS Distributions }; 62*fdd8201dSApple OSS Distributions 63*fdd8201dSApple OSS Distributions #endif /* _IOPMPOWERSTATEQUEUE_H_ */ 64