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*43593Sdonahn * @(#)icu.h 5.2 (Berkeley) 06/23/90 1141054Swilliam */ 1241054Swilliam 1341054Swilliam /* 1441054Swilliam * AT/386 Interrupt Control constants 1541054Swilliam * W. Jolitz 8/89 1641054Swilliam */ 1741054Swilliam 18*43593Sdonahn #ifndef __ICU__ 19*43593Sdonahn #define __ICU__ 20*43593Sdonahn 2141054Swilliam #ifndef LOCORE 2241054Swilliam extern unsigned short imen; /* interrupt mask enable */ 2341054Swilliam extern unsigned short cpl; /* current priority level */ 2441054Swilliam 25*43593Sdonahn extern unsigned short ttymask; /* things that get masked with spltty() */ 26*43593Sdonahn extern unsigned short biomask; /* things that get masked with splbio() */ 27*43593Sdonahn 2841054Swilliam #define INTREN(s) imen &= ~(s) 2941054Swilliam #define INTRDIS(s) imen |= (s) 3041054Swilliam #endif 3141054Swilliam 3241054Swilliam /* Interrupt enable bits */ 3341054Swilliam #define IRQ0 0x0001 /* highest priority - timer */ 3441054Swilliam #define IRQ1 0x0002 3541054Swilliam #define IRQ8 0x0100 3641054Swilliam #define IRQ9 0x0200 3741054Swilliam #define IRQ2 IRQ9 3841054Swilliam #define IRQ10 0x0400 3941054Swilliam #define IRQ11 0x0800 4041054Swilliam #define IRQ12 0x1000 4141054Swilliam #define IRQ13 0x2000 4241054Swilliam #define IRQ14 0x4000 4341054Swilliam #define IRQ15 0x8000 4441054Swilliam #define IRQ3 0x0008 4541054Swilliam #define IRQ4 0x0010 4641054Swilliam #define IRQ5 0x0020 4741054Swilliam #define IRQ6 0x0040 4841054Swilliam #define IRQ7 0x0080 /* lowest - parallel printer */ 4941054Swilliam 50*43593Sdonahn #endif __ICU__ 51