pexpert/i386/pe_interrupt.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 #include <pexpert/pexpert.h>
  23 #include <pexpert/protos.h>
  24 #include <machine/machine_routines.h>
  25 #include <i386/machine_cpu.h>
  26 #include <i386/mp.h>
  27 #include <sys/kdebug.h>
  28
  29 struct i386_interrupt_handler {
  30         IOInterruptHandler      handler;
  31         void                    *nub;
  32         void                    *target;
  33         void                    *refCon;
  34 };
  35
  36 typedef struct i386_interrupt_handler i386_interrupt_handler_t;
  37
  38 i386_interrupt_handler_t        PE_interrupt_handler;
  39
  40 void PE_platform_interrupt_initialize(void)
  41 {
  42 }
  43
  44
  45
  46 void
  47 PE_incoming_interrupt(int interrupt, void *state)
  48 {
  49         i386_interrupt_handler_t        *vector;
  50
  51         KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_START,
  52                               0, ((unsigned int *)state)[5], 0, 0, 0);
  53
  54         vector = &PE_interrupt_handler;
  55
  56         switch (interrupt) {
  57         case APIC_ERROR_INTERRUPT:
  58         case SPURIOUS_INTERRUPT:
  59         case INTERPROCESS_INTERRUPT:
  60                 lapic_interrupt(interrupt, state);
  61                 break;
  62         default:
  63                 vector->handler(vector->target, state, vector->nub, interrupt);
  64         }
  65
  66         KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_END,
  67            0, 0, 0, 0, 0);
  68 }
  69
  70 void PE_install_interrupt_handler(void *nub, int source,
  71                                   void *target,
  72                                   IOInterruptHandler handler,
  73                                   void *refCon)
  74 {
  75         i386_interrupt_handler_t        *vector;
  76
  77         vector = &PE_interrupt_handler;
  78
  79         /*vector->source = source; IGNORED */
  80         vector->handler = handler;
  81         vector->nub = nub;
  82         vector->target = target;
  83         vector->refCon = refCon;
  84 }