The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/iokit/IOKit/IOInterruptController.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*
    2  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
    5  * 
    6  * This file contains Original Code and/or Modifications of Original Code
    7  * as defined in and that are subject to the Apple Public Source License
    8  * Version 2.0 (the 'License'). You may not use this file except in
    9  * compliance with the License. The rights granted to you under the License
   10  * may not be used to create, or enable the creation or redistribution of,
   11  * unlawful or unlicensed copies of an Apple operating system, or to
   12  * circumvent, violate, or enable the circumvention or violation of, any
   13  * terms of an Apple operating system software license agreement.
   14  * 
   15  * Please obtain a copy of the License at
   16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
   17  * 
   18  * The Original Code and all software distributed under the License are
   19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   23  * Please see the License for the specific language governing rights and
   24  * limitations under the License.
   25  * 
   26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
   27  */
   28 /*
   29  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
   30  *
   31  *  DRI: Josh de Cesare
   32  *  
   33  */
   34 
   35 
   36 #ifndef _IOKIT_IOINTERRUPTCONTROLLER_H
   37 #define _IOKIT_IOINTERRUPTCONTROLLER_H
   38 
   39 #include <IOKit/IOLocks.h>
   40 #include <IOKit/IOService.h>
   41 #include <IOKit/IOInterrupts.h>
   42 
   43 
   44 class IOSharedInterruptController;
   45 
   46 struct IOInterruptVector {
   47   volatile char               interruptActive;
   48   volatile char               interruptDisabledSoft;
   49   volatile char               interruptDisabledHard;
   50   volatile char               interruptRegistered;
   51   IOLock *                    interruptLock;
   52   IOService *                 nub;
   53   long                        source;
   54   void *                      target;
   55   IOInterruptHandler          handler;
   56   void *                      refCon;
   57   IOSharedInterruptController *sharedController;
   58 };
   59 
   60 typedef struct IOInterruptVector IOInterruptVector;
   61 
   62 
   63 class IOInterruptController : public IOService
   64 {
   65   OSDeclareAbstractStructors(IOInterruptController);
   66 
   67 protected:
   68   IOInterruptVector *vectors;
   69   IOSimpleLock      *controllerLock;
   70 
   71   struct ExpansionData { };
   72   ExpansionData *reserved;
   73 
   74 public:
   75   virtual IOReturn registerInterrupt(IOService *nub, int source,
   76                                      void *target,
   77                                      IOInterruptHandler handler,
   78                                      void *refCon);
   79   virtual IOReturn unregisterInterrupt(IOService *nub, int source);
   80   
   81   virtual IOReturn getInterruptType(IOService *nub, int source,
   82                                     int *interruptType);
   83   
   84   virtual IOReturn enableInterrupt(IOService *nub, int source);
   85   virtual IOReturn disableInterrupt(IOService *nub, int source);
   86   virtual IOReturn causeInterrupt(IOService *nub, int source);
   87   
   88   virtual IOInterruptAction getInterruptHandlerAddress(void);
   89   virtual IOReturn handleInterrupt(void *refCon, IOService *nub,
   90                                    int source);
   91   
   92   // Methods to be overridden for simplifed interrupt controller subclasses.
   93   
   94   virtual bool vectorCanBeShared(long vectorNumber, IOInterruptVector *vector);
   95   virtual void initVector(long vectorNumber, IOInterruptVector *vector);
   96   virtual int  getVectorType(long vectorNumber, IOInterruptVector *vector);
   97   virtual void disableVectorHard(long vectorNumber, IOInterruptVector *vector);
   98   virtual void enableVector(long vectorNumber, IOInterruptVector *vector);
   99   virtual void causeVector(long vectorNumber, IOInterruptVector *vector);
  100 
  101   OSMetaClassDeclareReservedUnused(IOInterruptController, 0);
  102   OSMetaClassDeclareReservedUnused(IOInterruptController, 1);
  103   OSMetaClassDeclareReservedUnused(IOInterruptController, 2);
  104   OSMetaClassDeclareReservedUnused(IOInterruptController, 3);
  105   OSMetaClassDeclareReservedUnused(IOInterruptController, 4);
  106   OSMetaClassDeclareReservedUnused(IOInterruptController, 5);
  107 };
  108 
  109 
  110 class IOSharedInterruptController : public IOInterruptController
  111 {
  112   OSDeclareDefaultStructors(IOSharedInterruptController);
  113   
  114 private:
  115   IOService         *provider;
  116   int               numVectors;
  117   int               vectorsRegistered;
  118   int               vectorsEnabled;
  119   volatile long     controllerDisabled;
  120   bool              sourceIsLevel;
  121 
  122   struct ExpansionData { };
  123   ExpansionData *reserved;
  124 
  125 public:
  126   virtual IOReturn initInterruptController(IOInterruptController *parentController, OSData *parentSource);
  127   
  128   virtual IOReturn registerInterrupt(IOService *nub, int source,
  129                                      void *target,
  130                                      IOInterruptHandler handler,
  131                                      void *refCon);
  132   virtual IOReturn unregisterInterrupt(IOService *nub, int source);
  133   
  134   virtual IOReturn getInterruptType(IOService *nub, int source,
  135                                     int *interruptType);
  136   
  137   virtual IOReturn enableInterrupt(IOService *nub, int source);
  138   virtual IOReturn disableInterrupt(IOService *nub, int source);
  139   
  140   virtual IOInterruptAction getInterruptHandlerAddress(void);
  141   virtual IOReturn handleInterrupt(void *refCon, IOService *nub, int source);
  142 
  143   OSMetaClassDeclareReservedUnused(IOSharedInterruptController, 0);
  144   OSMetaClassDeclareReservedUnused(IOSharedInterruptController, 1);
  145   OSMetaClassDeclareReservedUnused(IOSharedInterruptController, 2);
  146   OSMetaClassDeclareReservedUnused(IOSharedInterruptController, 3);
  147 };
  148 
  149 
  150 #endif /* ! _IOKIT_IOINTERRUPTCONTROLLER_H */

Cache object: 7e77c12bebcc84e09a36566178beeba9


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.