1 /* $NetBSD: isr.h,v 1.3 2002/09/11 01:46:34 mycroft Exp $ */ 2 3 /* 4 * This file was taken from from mvme68k/mvme68k/isr.h 5 * should probably be re-synced when needed. 6 * Darrin B. Jewell <jewell@mit.edu> Tue Nov 10 05:07:16 1998 7 * original cvs id: NetBSD: isr.h,v 1.3 1997/10/09 08:40:06 jtc Exp 8 */ 9 10 /*- 11 * Copyright (c) 1996 The NetBSD Foundation, Inc. 12 * All rights reserved. 13 * 14 * This code is derived from software contributed to The NetBSD Foundation 15 * by Jason R. Thorpe. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 3. All advertising materials mentioning features or use of this software 26 * must display the following acknowledgement: 27 * This product includes software developed by the NetBSD 28 * Foundation, Inc. and its contributors. 29 * 4. Neither the name of The NetBSD Foundation nor the names of its 30 * contributors may be used to endorse or promote products derived 31 * from this software without specific prior written permission. 32 * 33 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 34 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 35 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 36 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 37 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 38 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 39 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 40 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 41 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 42 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 43 * POSSIBILITY OF SUCH DAMAGE. 44 */ 45 46 #include <sys/queue.h> 47 48 /* 49 * The location and size of the autovectored interrupt portion 50 * of the vector table. 51 */ 52 #define ISRAUTOVEC 0x18 53 #define NISRAUTOVEC 8 54 #define NIPLS 8 55 56 /* 57 * The location and size of the vectored interrupt portion 58 * of the vector table. 59 */ 60 #define ISRVECTORED 0x40 61 #define NISRVECTORED 192 62 63 /* 64 * Autovectored interupt handler cookie. 65 */ 66 struct isr_autovec { 67 LIST_ENTRY(isr_autovec) isr_link; 68 int (*isr_func) __P((void *)); 69 void *isr_arg; 70 int isr_ipl; 71 int isr_priority; 72 struct evcnt *isr_evcnt; 73 }; 74 75 typedef LIST_HEAD(, isr_autovec) isr_autovec_list_t; 76 77 /* 78 * Vectored interrupt handler cookie. The handler may request to 79 * receive the exception frame as an argument by specifying NULL 80 * when establishing the interrupt. 81 */ 82 struct isr_vectored { 83 int (*isr_func) __P((void *)); 84 void *isr_arg; 85 int isr_ipl; 86 struct evcnt *isr_evcnt; 87 }; 88 89 /* 90 * Autovectored ISR priorities. These are not the same as interrupt levels. 91 */ 92 #define ISRPRI_BIO 0 93 #define ISRPRI_NET 1 94 #define ISRPRI_TTY 2 95 #define ISRPRI_TTYNOBUF 3 96 97 extern struct evcnt next68k_irq_evcnt[]; 98 99 void isrinit __P((void)); 100 struct evcnt *isrlink_evcnt __P((int)); 101 void isrlink_autovec __P((int (*)(void *), void *, int, int, 102 struct evcnt *)); 103 void isrlink_vectored __P((int (*)(void *), void *, int, int, 104 struct evcnt *)); 105 void isrunlink_vectored __P((int)); 106 void isrdispatch_autovec __P((struct clockframe *)); 107 void isrdispatch_vectored __P((int, struct clockframe *)); 108 void netintr __P((void)); 109