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  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright (c) 1998-9 Apple Computer, Inc.  All rights reserved.
  27  *
  28  *  DRI: Josh de Cesare
  29  *
  30  */
  31
  32 #ifndef _IOKIT_APPLENMI_H
  33 #define _IOKIT_APPLENMI_H
  34
  35 #include <IOKit/IOService.h>
  36 #include <IOKit/IOInterrupts.h>
  37
  38 // NMI Interrupt Constants
  39 enum
  40 {
  41     kExtInt9_NMIIntSource      = 0x800506E0,
  42     kNMIIntLevelMask           = 0x00004000,
  43     kNMIIntMask                = 0x00000080
  44 };
  45
  46
  47 class AppleNMI : public IOService
  48 {
  49   OSDeclareDefaultStructors(AppleNMI);
  50
  51 private:
  52   bool enable_debugger;
  53   bool mask_NMI;
  54
  55   struct ExpansionData { };
  56   ExpansionData * reserved;     // Reserved for future use
  57
  58 public:
  59   IOService *rootDomain;
  60   virtual bool start(IOService *provider);
  61   virtual IOReturn initNMI(IOInterruptController *parentController, OSData *parentSource);
  62   virtual IOReturn handleInterrupt(void *refCon, IOService *nub, int source);
  63
  64   // Power handling methods:
  65   virtual IOReturn powerStateWillChangeTo(IOPMPowerFlags, unsigned long, IOService*);
  66
  67   OSMetaClassDeclareReservedUnused(AppleNMI,  0);
  68   OSMetaClassDeclareReservedUnused(AppleNMI,  1);
  69   OSMetaClassDeclareReservedUnused(AppleNMI,  2);
  70   OSMetaClassDeclareReservedUnused(AppleNMI,  3);
  71 };
  72
  73 #endif /* ! _IOKIT_APPLENMI_H */