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
  26 struct i386_interrupt_handler {
  27         IOInterruptHandler      handler;
  28         void                    *nub;
  29         void                    *target;
  30         void                    *refCon;
  31 };
  32
  33 typedef struct i386_interrupt_handler i386_interrupt_handler_t;
  34
  35 i386_interrupt_handler_t        PE_interrupt_handler;
  36
  37 void PE_platform_interrupt_initialize(void)
  38 {
  39 }
  40
  41 void
  42 PE_incoming_interrupt(int interrupt, struct i386_saved_state *ssp)
  43 {
  44         boolean_t               save_int;
  45
  46         i386_interrupt_handler_t        *vector;
  47
  48         vector = &PE_interrupt_handler;
  49
  50         save_int  = ml_set_interrupts_enabled(FALSE);
  51         vector->handler(vector->target, vector->refCon, vector->nub, interrupt);
  52         ml_set_interrupts_enabled(save_int);
  53 }
  54
  55 void PE_install_interrupt_handler(void *nub, int source,
  56                                   void *target,
  57                                   IOInterruptHandler handler,
  58                                   void *refCon)
  59 {
  60         i386_interrupt_handler_t        *vector;
  61
  62         vector = &PE_interrupt_handler;
  63
  64         /*vector->source = source; IGNORED */
  65         vector->handler = handler;
  66         vector->nub = nub;
  67         vector->target = target;
  68         vector->refCon = refCon;
  69 }