iokit/IOKit/platform/AppleNMI.h

   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) 1998-9 Apple Computer, Inc.  All rights reserved.
  30  *
  31  *  DRI: Josh de Cesare
  32  *
  33  */
  34
  35 #ifndef _IOKIT_APPLENMI_H
  36 #define _IOKIT_APPLENMI_H
  37
  38 #include <IOKit/IOService.h>
  39 #include <IOKit/IOInterrupts.h>
  40
  41 // NMI Interrupt Constants
  42 enum
  43 {
  44     kExtInt9_NMIIntSource      = 0x800506E0,
  45     kNMIIntLevelMask           = 0x00004000,
  46     kNMIIntMask                = 0x00000080
  47 };
  48
  49
  50 class AppleNMI : public IOService
  51 {
  52   OSDeclareDefaultStructors(AppleNMI);
  53
  54 private:
  55   bool enable_debugger;
  56   bool mask_NMI;
  57
  58   struct ExpansionData { };
  59   ExpansionData * reserved;     // Reserved for future use
  60
  61 public:
  62   IOService *rootDomain;
  63   virtual bool start(IOService *provider);
  64   virtual IOReturn initNMI(IOInterruptController *parentController, OSData *parentSource);
  65   virtual IOReturn handleInterrupt(void *refCon, IOService *nub, int source);
  66
  67   // Power handling methods:
  68   virtual IOReturn powerStateWillChangeTo(IOPMPowerFlags, unsigned long, IOService*);
  69
  70   OSMetaClassDeclareReservedUnused(AppleNMI,  0);
  71   OSMetaClassDeclareReservedUnused(AppleNMI,  1);
  72   OSMetaClassDeclareReservedUnused(AppleNMI,  2);
  73   OSMetaClassDeclareReservedUnused(AppleNMI,  3);
  74 };
  75
  76 #endif /* ! _IOKIT_APPLENMI_H */