1 /* $OpenBSD: isr.h,v 1.4 2008/06/26 05:42:11 ray Exp $ */ 2 /* $NetBSD: isr.h,v 1.1 2000/01/05 08:49:04 nisimura Exp $ */ 3 4 /*- 5 * Copyright (c) 1996 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/evcount.h> 34 #include <sys/queue.h> 35 36 /* 37 * The max size of the autovectored interrupt. 38 */ 39 #define NISRAUTOVEC 8 40 41 /* 42 * Autovectored interrupt handler cookie. 43 */ 44 struct isr_autovec { 45 LIST_ENTRY(isr_autovec) isr_link; 46 int (*isr_func)(void *); 47 void *isr_arg; 48 int isr_ipl; 49 int isr_priority; 50 struct evcount isr_count; 51 }; 52 53 typedef LIST_HEAD(, isr_autovec) isr_autovec_list_t; 54 55 /* 56 * Autovectored ISR priorities. These are not the same as interrupt levels. 57 */ 58 #define ISRPRI_BIO 0 59 #define ISRPRI_NET 1 60 #define ISRPRI_TTY 2 61 #define ISRPRI_TTYNOBUF 3 62 63 void isrinit(void); 64 void isrlink_autovec(int (*)(void *), void *, int, int, const char *); 65 void isrdispatch_autovec(int); 66