iokit/IOKit/platform/AppleNMI.h

   1 /*
   2  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * Copyright (c) 1998-9 Apple Computer, Inc.  All rights reserved.
  32  *
  33  *  DRI: Josh de Cesare
  34  *
  35  */
  36
  37 #ifndef _IOKIT_APPLENMI_H
  38 #define _IOKIT_APPLENMI_H
  39
  40 #include <IOKit/IOService.h>
  41 #include <IOKit/IOInterrupts.h>
  42
  43 // NMI Interrupt Constants
  44 enum
  45 {
  46     kExtInt9_NMIIntSource      = 0x800506E0,
  47     kNMIIntLevelMask           = 0x00004000,
  48     kNMIIntMask                = 0x00000080
  49 };
  50
  51
  52 class AppleNMI : public IOService
  53 {
  54   OSDeclareDefaultStructors(AppleNMI);
  55
  56 private:
  57   bool enable_debugger;
  58   bool mask_NMI;
  59
  60   struct ExpansionData { };
  61   ExpansionData * reserved;     // Reserved for future use
  62
  63 public:
  64   IOService *rootDomain;
  65   virtual bool start(IOService *provider);
  66   virtual IOReturn initNMI(IOInterruptController *parentController, OSData *parentSource);
  67   virtual IOReturn handleInterrupt(void *refCon, IOService *nub, int source);
  68
  69   // Power handling methods:
  70   virtual IOReturn powerStateWillChangeTo(IOPMPowerFlags, unsigned long, IOService*);
  71
  72   OSMetaClassDeclareReservedUnused(AppleNMI,  0);
  73   OSMetaClassDeclareReservedUnused(AppleNMI,  1);
  74   OSMetaClassDeclareReservedUnused(AppleNMI,  2);
  75   OSMetaClassDeclareReservedUnused(AppleNMI,  3);
  76 };
  77
  78 #endif /* ! _IOKIT_APPLENMI_H */