Home | History | Annotate | Line # | Download | only in luna68k
isr.h revision 1.1 
      1 /*	$NetBSD: isr.h,v 1.1 2000/01/05 08:49:04 nisimura 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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/queue.h>
     40 
     41 /*
     42  * The location and size of the autovectored interrupt portion
     43  * of the vector table.
     44  */
     45 #define ISRAUTOVEC	0x18
     46 #define NISRAUTOVEC	8
     47 
     48 /*
     49  * The location and size of the vectored interrupt portion
     50  * of the vector table.
     51  */
     52 #define ISRVECTORED	0x40
     53 #define NISRVECTORED	192
     54 
     55 /*
     56  * Autovectored interupt handler cookie.
     57  */
     58 struct isr_autovec {
     59 	LIST_ENTRY(isr_autovec) isr_link;
     60 	int		(*isr_func) __P((void *));
     61 	void		*isr_arg;
     62 	int		isr_ipl;
     63 	int		isr_priority;
     64 };
     65 
     66 typedef LIST_HEAD(, isr_autovec) isr_autovec_list_t;
     67 
     68 /*
     69  * Vectored interrupt handler cookie.  The handler may request to
     70  * receive the exception frame as an argument by specifying NULL
     71  * when establishing the interrupt.
     72  */
     73 struct isr_vectored {
     74 	int		(*isr_func) __P((void *));
     75 	void		*isr_arg;
     76 	int		isr_ipl;
     77 };
     78 
     79 /*
     80  * Autovectored ISR priorities.  These are not the same as interrupt levels.
     81  */
     82 #define ISRPRI_BIO		0
     83 #define ISRPRI_NET		1
     84 #define ISRPRI_TTY		2
     85 #define ISRPRI_TTYNOBUF		3
     86 
     87 void	isrinit __P((void));
     88 void	isrlink_autovec __P((int (*)(void *), void *, int, int));
     89 void	isrlink_vectored __P((int (*)(void *), void *, int, int));
     90 void	isrunlink_vectored __P((int));
     91 void	isrdispatch_autovec __P((int));
     92 void	isrdispatch_vectored __P((int, int, void *));
     93