/* * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This 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 OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * DRI: Josh de Cesare * */ #ifndef _IOKIT_GENERICINTERRUPTCONTROLLER_H #define _IOKIT_GENERICINTERRUPTCONTROLLER_H #include <IOKit/IOInterrupts.h> #include <IOKit/IOInterruptController.h> class GenericInterruptController : public IOInterruptController { IODeclareDefaultStructors(GenericInterruptController); public: // There should be a method to start or init the controller. // Its nature is up to you. virtual bool start(IOService *provider); // Returns the type of a vector: level or edge. This will probably get // replaced but a default method and a new method getVectorType. virtual IOReturn getInterruptType(IOService *nub, int source, int *interruptType); // Returns a function pointer for the interrupt handler. // Sadly, egcs prevents this from being done by the base class. virtual IOInterruptAction getInterruptHandlerAddress(void); // The actual interrupt handler. virtual IOReturn handleInterrupt(void *refCon, IOService *nub, int source); // Should return true if this vector can be shared. // The base class return false, so this method only need to be implemented // if the controller needs to support shared interrupts. // No other work is required to support shared interrupts. virtual bool vectorCanBeShared(long vectorNumber, IOInterruptVector *vector); // Do any hardware initalization for this vector. Leave the vector // hard disabled. virtual void initVector(long vectorNumber, IOInterruptVector *vector); // Disable this vector at the hardware. virtual void disableVectorHard(long vectorNumber, IOInterruptVector *vector); // Enable this vector at the hardware. virtual void enableVector(long vectorNumber, IOInterruptVector *vector); // Cause an interrupt on this vector. virtual void causeVector(long vectorNumber, IOInterruptVector *vector); }; #endif /* ! _IOKIT_GENERICINTERRUPTCONTROLLER_H */