/* $NetBSD: isr.h,v 1.4 2009/03/14 14:46:01 dsl Exp $ */ /*- * Copyright (c) 1996 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include <sys/queue.h> /* * The location and size of the autovectored interrupt portion * of the vector table. */ #define ISRAUTOVEC 0x18 #define NISRAUTOVEC 8 /* * The location and size of the vectored interrupt portion * of the vector table. */ #define ISRVECTORED 0x40 #define NISRVECTORED 192 /* * Autovectored interrupt handler cookie. */ struct isr_autovec { LIST_ENTRY(isr_autovec) isr_link; int (*isr_func)(void *); void *isr_arg; int isr_ipl; int isr_priority; }; typedef LIST_HEAD(, isr_autovec) isr_autovec_list_t; /* * Vectored interrupt handler cookie. The handler may request to * receive the exception frame as an argument by specifying NULL * when establishing the interrupt. */ struct isr_vectored { int (*isr_func)(void *); void *isr_arg; int isr_ipl; }; /* * Autovectored ISR priorities. These are not the same as interrupt levels. */ #define ISRPRI_BIO 0 #define ISRPRI_NET 1 #define ISRPRI_TTY 2 #define ISRPRI_TTYNOBUF 3 void isrinit(void); void isrlink_autovec(int (*)(void *), void *, int, int); void isrlink_vectored(int (*)(void *), void *, int, int); void isrunlink_vectored(int); void isrdispatch_autovec(int); void isrdispatch_vectored(int, int, void *); |