/* * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. * * 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@ */ /* * 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 */