141054Swilliam /*- 241054Swilliam * Copyright (c) 1990 The Regents of the University of California. 341054Swilliam * All rights reserved. 441054Swilliam * 541054Swilliam * This code is derived from software contributed to Berkeley by 641054Swilliam * William Jolitz. 741054Swilliam * 841054Swilliam * %sccs.include.386.c% 941054Swilliam * 10*45544Sbill * @(#)icu.h 5.3 (Berkeley) 11/08/90 1141054Swilliam */ 1241054Swilliam 1341054Swilliam /* 1441054Swilliam * AT/386 Interrupt Control constants 1541054Swilliam * W. Jolitz 8/89 1641054Swilliam */ 1741054Swilliam 1843593Sdonahn #ifndef __ICU__ 1943593Sdonahn #define __ICU__ 2043593Sdonahn 2141054Swilliam #ifndef LOCORE 2241054Swilliam extern unsigned short imen; /* interrupt mask enable */ 2341054Swilliam extern unsigned short cpl; /* current priority level */ 2441054Swilliam 2543593Sdonahn extern unsigned short ttymask; /* things that get masked with spltty() */ 2643593Sdonahn extern unsigned short biomask; /* things that get masked with splbio() */ 27*45544Sbill extern unsigned short netmask; /* things that get masked with splimp() */ 2843593Sdonahn 2941054Swilliam #define INTREN(s) imen &= ~(s) 3041054Swilliam #define INTRDIS(s) imen |= (s) 31*45544Sbill #define INTRMASK(msk,s) msk |= (s) 3241054Swilliam #endif 3341054Swilliam 34*45544Sbill /* Interrupt enable bits -- in order of priority */ 35*45544Sbill #define IRQ0 0x0001 /* highest priority - timer */ 36*45544Sbill #define IRQ1 0x0002 37*45544Sbill #define IRQ_SLAVE 0x0004 38*45544Sbill #define IRQ8 0x0100 39*45544Sbill #define IRQ9 0x0200 40*45544Sbill #define IRQ2 IRQ9 41*45544Sbill #define IRQ10 0x0400 42*45544Sbill #define IRQ11 0x0800 43*45544Sbill #define IRQ12 0x1000 44*45544Sbill #define IRQ13 0x2000 45*45544Sbill #define IRQ14 0x4000 46*45544Sbill #define IRQ15 0x8000 47*45544Sbill #define IRQ3 0x0008 48*45544Sbill #define IRQ4 0x0010 49*45544Sbill #define IRQ5 0x0020 50*45544Sbill #define IRQ6 0x0040 51*45544Sbill #define IRQ7 0x0080 /* lowest - parallel printer */ 5241054Swilliam 5343593Sdonahn #endif __ICU__ 54