sys/arch/mvme68k/mvme68k/isr.h

   1 /*      $NetBSD: isr.h,v 1.11 2008/01/12 09:54:29 tsutsui Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/queue.h>
  33
  34 /*
  35  * The location and size of the autovectored interrupt portion
  36  * of the vector table.
  37  */
  38 #define ISRAUTOVEC      0x18
  39 #define NISRAUTOVEC     8
  40 #define NIPLS           8
  41
  42 /*
  43  * The location and size of the vectored interrupt portion
  44  * of the vector table.
  45  */
  46 #define ISRVECTORED     0x40
  47 #define NISRVECTORED    192
  48
  49 /*
  50  * Autovectored interrupt handler cookie.
  51  */
  52 struct isr_autovec {
  53         LIST_ENTRY(isr_autovec) isr_link;
  54         int             (*isr_func)(void *);
  55         void            *isr_arg;
  56         int             isr_ipl;
  57         int             isr_priority;
  58         struct evcnt    *isr_evcnt;
  59 };
  60
  61 typedef LIST_HEAD(, isr_autovec) isr_autovec_list_t;
  62
  63 /*
  64  * Vectored interrupt handler cookie.  The handler may request to
  65  * receive the exception frame as an argument by specifying NULL
  66  * when establishing the interrupt.
  67  */
  68 struct isr_vectored {
  69         int             (*isr_func)(void *);
  70         void            *isr_arg;
  71         int             isr_ipl;
  72         struct evcnt    *isr_evcnt;
  73 };
  74
  75 extern  struct evcnt mvme68k_irq_evcnt[];
  76
  77 void    isrinit(void);
  78 struct evcnt *isrlink_evcnt(int);
  79 void    isrlink_autovec(int (*)(void *), void *, int, int, struct evcnt *);
  80 void    isrlink_vectored(int (*)(void *), void *, int, int, struct evcnt *);
  81 void    isrunlink_vectored(int);
  82 void    isrdispatch_autovec(struct clockframe *);
  83 void    isrdispatch_vectored(int, struct clockframe *);
  84 void    netintr(void);