1 /* $NetBSD: intr.h,v 1.8 2002/08/17 16:42:22 briggs Exp $ */ 2 3 /* 4 * Copyright (c) 2001 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_IMP 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 #ifdef __OLD_INTERRUPT_CODE /* XXX XXX XXX */ 68 69 /* Software interrupt priority levels */ 70 71 #define SOFTIRQ_CLOCK 0 72 #define SOFTIRQ_NET 1 73 #define SOFTIRQ_SERIAL 2 74 75 #define SOFTIRQ_BIT(x) (1 << x) 76 77 #include <arm/arm32/psl.h> 78 79 #else /* ! __OLD_INTERRUPT_CODE */ 80 81 #define __NEWINTR /* enables new hooks in cpu_fork()/cpu_switch() */ 82 83 #ifndef _LOCORE 84 85 #include <sys/device.h> 86 #include <sys/queue.h> 87 88 #if defined(_LKM) 89 90 int _splraise(int); 91 int _spllower(int); 92 void splx(int); 93 void _setsoftintr(int); 94 95 #else /* _LKM */ 96 97 #if defined(EVBARM_BOARDTYPE) 98 99 #include <machine/cpu.h> 100 101 /* 102 * Each board needs to define the following functions: 103 * 104 * int _splraise(int); 105 * int _spllower(int); 106 * void splx(int); 107 * void _setsoftintr(int); 108 * 109 * These may be defined as functions, static __inline functions, or macros, 110 * but there must be a _spllower() and splx() defined as functions callable 111 * from assembly language (for cpu_switch()). However, since it's quite 112 * useful to be able to inline splx(), you could do something like the 113 * following: 114 * 115 * in <boardtype>_intr.h: 116 * static __inline int 117 * boardtype_splx(int spl) 118 * {...} 119 * 120 * #define splx(nspl) boardtype_splx(nspl) 121 * ... 122 * and in boardtype's machdep code: 123 * 124 * ... 125 * #undef splx 126 * int 127 * splx(int spl) 128 * { 129 * return boardtype_splx(spl); 130 * } 131 */ 132 133 #if EVBARM_BOARDTYPE == EVBARM_BOARDTYPE_IQ80310 134 #include <arch/evbarm/iq80310/iq80310_intr.h> 135 #elif EVBARM_BOARDTYPE == EVBARM_BOARDTYPE_I80321 136 #include <arch/arm/xscale/i80321_intr.h> 137 #elif EVBARM_BOARDTYPE == EVBARM_BOARDTYPE_IXM1200 138 #include <arch/evbarm/ixm1200/ixm1200_intr.h> 139 #endif 140 141 #else /* EVBARM_BOARDTYPE */ 142 143 #error EVBARM_BOARDTYPE not defined. 144 145 #endif /* else EVBARM_BOARDTYPE */ 146 147 #endif /* else _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_IMP) 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