projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| d8b6dae7 WN |
1 | /*- |
| 2 | * Copyright (c) 1990 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * William Jolitz. | |
| 7 | * | |
| 8 | * %sccs.include.386.c% | |
| 9 | * | |
| 78c0d757 | 10 | * @(#)icu.h 5.2 (Berkeley) %G% |
| d8b6dae7 WN |
11 | */ |
| 12 | ||
| 13 | /* | |
| 14 | * AT/386 Interrupt Control constants | |
| 15 | * W. Jolitz 8/89 | |
| 16 | */ | |
| 17 | ||
| 78c0d757 DA |
18 | #ifndef __ICU__ |
| 19 | #define __ICU__ | |
| 20 | ||
| d8b6dae7 WN |
21 | #ifndef LOCORE |
| 22 | extern unsigned short imen; /* interrupt mask enable */ | |
| 23 | extern unsigned short cpl; /* current priority level */ | |
| 24 | ||
| 78c0d757 DA |
25 | extern unsigned short ttymask; /* things that get masked with spltty() */ |
| 26 | extern unsigned short biomask; /* things that get masked with splbio() */ | |
| 27 | ||
| d8b6dae7 WN |
28 | #define INTREN(s) imen &= ~(s) |
| 29 | #define INTRDIS(s) imen |= (s) | |
| 30 | #endif | |
| 31 | ||
| 32 | /* Interrupt enable bits */ | |
| 33 | #define IRQ0 0x0001 /* highest priority - timer */ | |
| 34 | #define IRQ1 0x0002 | |
| 35 | #define IRQ8 0x0100 | |
| 36 | #define IRQ9 0x0200 | |
| 37 | #define IRQ2 IRQ9 | |
| 38 | #define IRQ10 0x0400 | |
| 39 | #define IRQ11 0x0800 | |
| 40 | #define IRQ12 0x1000 | |
| 41 | #define IRQ13 0x2000 | |
| 42 | #define IRQ14 0x4000 | |
| 43 | #define IRQ15 0x8000 | |
| 44 | #define IRQ3 0x0008 | |
| 45 | #define IRQ4 0x0010 | |
| 46 | #define IRQ5 0x0020 | |
| 47 | #define IRQ6 0x0040 | |
| 48 | #define IRQ7 0x0080 /* lowest - parallel printer */ | |
| 49 | ||
| 78c0d757 | 50 | #endif __ICU__ |