iokit/Drivers/platform/drvAppleGrandCentral/GrandCentral.h

   1 /*
   2  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
  24  *
  25  *  DRI: Josh de Cesare
  26  *
  27  */
  28
  29 #ifndef _IOKIT_GRANDCENTRAL_H
  30 #define _IOKIT_GRANDCENTRAL_H
  31
  32 #include <IOKit/platform/AppleMacIO.h>
  33
  34 #include <IOKit/IOInterrupts.h>
  35 #include <IOKit/IOInterruptController.h>
  36
  37 #define kNumVectors      (32)
  38
  39 #define kTypeLevelMask (0x3FF00000)
  40
  41 #define kEventsOffset    (0x00020)
  42 #define kMaskOffset      (0x00024)
  43 #define kClearOffset     (0x00028)
  44 #define kLevelsOffset    (0x0002C)
  45
  46
  47 class GrandCentralInterruptController;
  48
  49 class GrandCentral : public AppleMacIO
  50 {
  51   OSDeclareDefaultStructors(GrandCentral);
  52
  53 private:
  54   IOLogicalAddress                 grandCentralBaseAddress;
  55   GrandCentralInterruptController  *interruptController;
  56
  57 public:
  58   virtual bool start(IOService *provider);
  59 };
  60
  61
  62 class GrandCentralInterruptController : public IOInterruptController
  63 {
  64   OSDeclareDefaultStructors(GrandCentralInterruptController);
  65
  66 private:
  67   IOService         *parentNub;
  68   IOLock            *taskLock;
  69   unsigned long     pendingEvents;
  70   unsigned long     eventsReg;
  71   unsigned long     maskReg;
  72   unsigned long     clearReg;
  73   unsigned long     levelsReg;
  74
  75 public:
  76   virtual IOReturn initInterruptController(IOService *provider, IOLogicalAddress interruptControllerBase);
  77
  78   virtual IOInterruptAction getInterruptHandlerAddress(void);
  79   virtual IOReturn handleInterrupt(void *refCon, IOService *nub, int source);
  80
  81   virtual bool vectorCanBeShared(long vectorNumber, IOInterruptVector *vector);
  82   virtual int  getVectorType(long vectorNumber, IOInterruptVector *vector);
  83   virtual void disableVectorHard(long vectorNumber, IOInterruptVector *vector);
  84   virtual void enableVector(long vectorNumber, IOInterruptVector *vector);
  85   virtual void causeVector(long vectorNumber, IOInterruptVector *vector);
  86 };
  87
  88
  89 #endif /* ! _IOKIT_GRANDCENTRAL_H */