intr.h revision 1.1
1 /* $NetBSD: intr.h,v 1.1 2004/10/13 23:28:36 gavan 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 _IYONIX_INTR_H_ 39 #define _IYONIX_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 #define __NEWINTR /* enables new hooks in cpu_fork()/cpu_switch() */ 74 75 #ifndef _LOCORE 76 77 #include <sys/device.h> 78 #include <sys/queue.h> 79 80 #if defined(_LKM) 81 82 int _splraise(int); 83 int _spllower(int); 84 void splx(int); 85 void _setsoftintr(int); 86 87 #else /* _LKM */ 88 89 #include "opt_arm_intr_impl.h" 90 91 #if defined(ARM_INTR_IMPL) 92 93 /* 94 * Each board needs to define the following functions: 95 * 96 * int _splraise(int); 97 * int _spllower(int); 98 * void splx(int); 99 * void _setsoftintr(int); 100 * 101 * These may be defined as functions, static __inline functions, or macros, 102 * but there must be a _spllower() and splx() defined as functions callable 103 * from assembly language (for cpu_switch()). However, since it's quite 104 * useful to be able to inline splx(), you could do something like the 105 * following: 106 * 107 * in <boardtype>_intr.h: 108 * static __inline int 109 * boardtype_splx(int spl) 110 * {...} 111 * 112 * #define splx(nspl) boardtype_splx(nspl) 113 * ... 114 * and in boardtype's machdep code: 115 * 116 * ... 117 * #undef splx 118 * int 119 * splx(int spl) 120 * { 121 * return boardtype_splx(spl); 122 * } 123 */ 124 125 #include ARM_INTR_IMPL 126 127 #else /* ARM_INTR_IMPL */ 128 129 #error ARM_INTR_IMPL not defined. 130 131 #endif /* ARM_INTR_IMPL */ 132 133 #endif /* _LKM */ 134 135 #define splhigh() _splraise(IPL_HIGH) 136 #define splsoft() _splraise(IPL_SOFT) 137 #define splsoftclock() _splraise(IPL_SOFTCLOCK) 138 #define splsoftnet() _splraise(IPL_SOFTNET) 139 #define splbio() _splraise(IPL_BIO) 140 #define splnet() _splraise(IPL_NET) 141 #define spltty() _splraise(IPL_TTY) 142 #define splvm() _splraise(IPL_VM) 143 #define splaudio() _splraise(IPL_AUDIO) 144 #define splclock() _splraise(IPL_CLOCK) 145 #define splstatclock() _splraise(IPL_STATCLOCK) 146 #define splserial() _splraise(IPL_SERIAL) 147 148 #define spl0() _spllower(IPL_NONE) 149 #define spllowersoftclock() _spllower(IPL_SOFTCLOCK) 150 151 #define splsched() splhigh() 152 #define spllock() splhigh() 153 154 /* Use generic software interrupt support. */ 155 #include <arm/softintr.h> 156 157 #endif /* ! _LOCORE */ 158 159 #endif /* _KERNEL */ 160 161 #endif /* _IYONIX_INTR_H_ */ 162
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