/* * Copyright (c) 2001-2006 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifndef _IOKIT_IOUSBWORKLOOP_H #define _IOKIT_IOUSBWORKLOOP_H #include <IOKit/IOWorkLoop.h> /*! @class IOUSBWorkLoop @abstract Subclass of IOWorkloop that allows the USB stack to more finely control sleep and wake. */ class IOUSBWorkLoop : public IOWorkLoop { OSDeclareDefaultStructors(IOUSBWorkLoop) protected: void * fSleepToken; bool init ( const char * controllerLocation ); void free ( void ); // Overrides to check for sleeping virtual void closeGate(); virtual bool tryCloseGate(); public: // Create a workloop static IOUSBWorkLoop * workLoop(const char * controllerLocation); // Put workloop to sleep (Must have gate closed, opens gate if successful) virtual IOReturn sleep(void *token); // Wake workloop up (closes gate if successful) virtual IOReturn wake(void *token); void CloseGate(void); void OpenGate(void); }; #endif /* ! _IOKIT_IOUSBWORKLOOP_H */