pexpert/i386/pe_interrupt.c

   1 /*
   2  * Copyright (c) 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 #include <pexpert/pexpert.h>
  26 #include <pexpert/protos.h>
  27 #include <machine/machine_routines.h>
  28 #include <i386/machine_cpu.h>
  29 #include <i386/mp.h>
  30 #include <sys/kdebug.h>
  31
  32 struct i386_interrupt_handler {
  33         IOInterruptHandler      handler;
  34         void                    *nub;
  35         void                    *target;
  36         void                    *refCon;
  37 };
  38
  39 typedef struct i386_interrupt_handler i386_interrupt_handler_t;
  40
  41 i386_interrupt_handler_t        PE_interrupt_handler;
  42
  43 void PE_platform_interrupt_initialize(void)
  44 {
  45 }
  46
  47
  48
  49 void
  50 PE_incoming_interrupt(int interrupt, void *state)
  51 {
  52         i386_interrupt_handler_t        *vector;
  53
  54         KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_START,
  55                               0, ((unsigned int *)state)[5], 0, 0, 0);
  56
  57         vector = &PE_interrupt_handler;
  58
  59         switch (interrupt) {
  60         case APIC_ERROR_INTERRUPT:
  61         case SPURIOUS_INTERRUPT:
  62         case INTERPROCESS_INTERRUPT:
  63                 lapic_interrupt(interrupt, state);
  64                 break;
  65         default:
  66                 vector->handler(vector->target, state, vector->nub, interrupt);
  67         }
  68
  69         KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_END,
  70            0, 0, 0, 0, 0);
  71 }
  72
  73 void PE_install_interrupt_handler(void *nub, int source,
  74                                   void *target,
  75                                   IOInterruptHandler handler,
  76                                   void *refCon)
  77 {
  78         i386_interrupt_handler_t        *vector;
  79
  80         vector = &PE_interrupt_handler;
  81
  82         /*vector->source = source; IGNORED */
  83         vector->handler = handler;
  84         vector->nub = nub;
  85         vector->target = target;
  86         vector->refCon = refCon;
  87 }