intr.h revision 1.13
1/* $NetBSD: intr.h,v 1.13 2005/12/24 20:06:59 perry Exp $ */ 2 3/* 4 * Copyright (c) 2001, 2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38#ifndef _EVBARM_INTR_H_ 39#define _EVBARM_INTR_H_ 40 41#ifdef _KERNEL 42 43/* Interrupt priority "levels". */ 44#define IPL_NONE 0 /* nothing */ 45#define IPL_SOFT 1 /* generic software interrupts */ 46#define IPL_SOFTCLOCK 2 /* software clock interrupt */ 47#define IPL_SOFTNET 3 /* software network interrupt */ 48#define IPL_BIO 4 /* block I/O */ 49#define IPL_NET 5 /* network */ 50#define IPL_SOFTSERIAL 6 /* software serial interrupt */ 51#define IPL_TTY 7 /* terminals */ 52#define IPL_VM 8 /* memory allocation */ 53#define IPL_AUDIO 9 /* audio device */ 54#define IPL_CLOCK 10 /* clock interrupt */ 55#define IPL_STATCLOCK 11 /* statistics clock interrupt */ 56#define IPL_HIGH 12 /* everything */ 57#define IPL_SERIAL 13 /* serial device */ 58 59#define NIPL 14 60 61/* Interrupt sharing types. */ 62#define IST_NONE 0 /* none */ 63#define IST_PULSE 1 /* pulsed */ 64#define IST_EDGE 2 /* edge-triggered */ 65#define IST_LEVEL 3 /* level-triggered */ 66 67#define IST_LEVEL_LOW IST_LEVEL 68#define IST_LEVEL_HIGH 4 69#define IST_EDGE_FALLING IST_EDGE 70#define IST_EDGE_RISING 5 71#define IST_EDGE_BOTH 6 72 73#ifdef __OLD_INTERRUPT_CODE /* XXX XXX XXX */ 74 75/* Software interrupt priority levels */ 76 77#define SOFTIRQ_CLOCK 0 78#define SOFTIRQ_NET 1 79#define SOFTIRQ_SERIAL 2 80 81#define SOFTIRQ_BIT(x) (1 << x) 82 83#include <arm/arm32/psl.h> 84 85#else /* ! __OLD_INTERRUPT_CODE */ 86 87#define __NEWINTR /* enables new hooks in cpu_fork()/cpu_switch() */ 88 89#ifndef _LOCORE 90 91#include <sys/device.h> 92#include <sys/queue.h> 93 94#if defined(_LKM) 95 96int _splraise(int); 97int _spllower(int); 98void splx(int); 99void _setsoftintr(int); 100 101#else /* _LKM */ 102 103#include "opt_arm_intr_impl.h" 104 105#if defined(ARM_INTR_IMPL) 106 107/* 108 * Each board needs to define the following functions: 109 * 110 * int _splraise(int); 111 * int _spllower(int); 112 * void splx(int); 113 * void _setsoftintr(int); 114 * 115 * These may be defined as functions, static inline functions, or macros, 116 * but there must be a _spllower() and splx() defined as functions callable 117 * from assembly language (for cpu_switch()). However, since it's quite 118 * useful to be able to inline splx(), you could do something like the 119 * following: 120 * 121 * in <boardtype>_intr.h: 122 * static inline int 123 * boardtype_splx(int spl) 124 * {...} 125 * 126 * #define splx(nspl) boardtype_splx(nspl) 127 * ... 128 * and in boardtype's machdep code: 129 * 130 * ... 131 * #undef splx 132 * int 133 * splx(int spl) 134 * { 135 * return boardtype_splx(spl); 136 * } 137 */ 138 139#include ARM_INTR_IMPL 140 141#else /* ARM_INTR_IMPL */ 142 143#error ARM_INTR_IMPL not defined. 144 145#endif /* ARM_INTR_IMPL */ 146 147#endif /* _LKM */ 148 149#define splhigh() _splraise(IPL_HIGH) 150#define splsoft() _splraise(IPL_SOFT) 151#define splsoftclock() _splraise(IPL_SOFTCLOCK) 152#define splsoftnet() _splraise(IPL_SOFTNET) 153#define splbio() _splraise(IPL_BIO) 154#define splnet() _splraise(IPL_NET) 155#define spltty() _splraise(IPL_TTY) 156#define splvm() _splraise(IPL_VM) 157#define splaudio() _splraise(IPL_AUDIO) 158#define splclock() _splraise(IPL_CLOCK) 159#define splstatclock() _splraise(IPL_STATCLOCK) 160#define splserial() _splraise(IPL_SERIAL) 161 162#define spl0() _spllower(IPL_NONE) 163#define spllowersoftclock() _spllower(IPL_SOFTCLOCK) 164 165#define splsched() splhigh() 166#define spllock() splhigh() 167 168/* Use generic software interrupt support. */ 169#include <arm/softintr.h> 170 171#endif /* ! _LOCORE */ 172 173#endif /* __OLD_INTERRUPT_CODE */ 174 175#endif /* _KERNEL */ 176 177#endif /* _EVBARM_INTR_H_ */ 178