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  * 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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * Copyright (c) 1998-9 Apple Computer, Inc.  All rights reserved.
  25  *
  26  *  DRI: Josh de Cesare
  27  *
  28  */
  29
  30 #ifndef _IOKIT_APPLENMI_H
  31 #define _IOKIT_APPLENMI_H
  32
  33 #include <IOKit/IOService.h>
  34 #include <IOKit/IOInterrupts.h>
  35
  36 // NMI Interrupt Constants
  37 enum
  38 {
  39     kExtInt9_NMIIntSource      = 0x800506E0,
  40     kNMIIntLevelMask           = 0x00004000,
  41     kNMIIntMask                = 0x00000080
  42 };
  43
  44
  45 class AppleNMI : public IOService
  46 {
  47   OSDeclareDefaultStructors(AppleNMI);
  48
  49 private:
  50   bool enable_debugger;
  51   bool mask_NMI;
  52
  53   struct ExpansionData { };
  54   ExpansionData * reserved;     // Reserved for future use
  55
  56 public:
  57   IOService *rootDomain;
  58   virtual bool start(IOService *provider);
  59   virtual IOReturn initNMI(IOInterruptController *parentController, OSData *parentSource);
  60   virtual IOReturn handleInterrupt(void *refCon, IOService *nub, int source);
  61
  62   // Power handling methods:
  63   virtual IOReturn powerStateWillChangeTo(IOPMPowerFlags, unsigned long, IOService*);
  64
  65   OSMetaClassDeclareReservedUnused(AppleNMI,  0);
  66   OSMetaClassDeclareReservedUnused(AppleNMI,  1);
  67   OSMetaClassDeclareReservedUnused(AppleNMI,  2);
  68   OSMetaClassDeclareReservedUnused(AppleNMI,  3);
  69 };
  70
  71 #endif /* ! _IOKIT_APPLENMI_H */