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