iokit/IOKit/platform/AppleNMI.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) 1998-9 Apple Computer, Inc.  All rights reserved.
  24  *
  25  *  DRI: Josh de Cesare
  26  *
  27  */
  28
  29 #ifndef _IOKIT_APPLENMI_H
  30 #define _IOKIT_APPLENMI_H
  31
  32 #include <IOKit/IOService.h>
  33 #include <IOKit/IOInterrupts.h>
  34
  35 // NMI Interrupt Constants
  36 enum
  37 {
  38     kExtInt9_NMIIntSource      = 0x800506E0,
  39     kNMIIntLevelMask           = 0x00004000,
  40     kNMIIntMask                = 0x00000080
  41 };
  42
  43
  44 class AppleNMI : public IOService
  45 {
  46   OSDeclareDefaultStructors(AppleNMI);
  47
  48 private:
  49   bool enable_debugger;
  50   bool mask_NMI;
  51
  52   struct ExpansionData { };
  53   ExpansionData * reserved;     // Reserved for future use
  54
  55 public:
  56   IOService *rootDomain;
  57   virtual bool start(IOService *provider);
  58   virtual IOReturn initNMI(IOInterruptController *parentController, OSData *parentSource);
  59   virtual IOReturn handleInterrupt(void *refCon, IOService *nub, int source);
  60
  61   // Power handling methods:
  62   virtual IOReturn powerStateWillChangeTo(IOPMPowerFlags, unsigned long, IOService*);
  63
  64   OSMetaClassDeclareReservedUnused(AppleNMI,  0);
  65   OSMetaClassDeclareReservedUnused(AppleNMI,  1);
  66   OSMetaClassDeclareReservedUnused(AppleNMI,  2);
  67   OSMetaClassDeclareReservedUnused(AppleNMI,  3);
  68 };
  69
  70 #endif /* ! _IOKIT_APPLENMI_H */