1 /* $NetBSD: icu.h,v 1.1 2002/02/10 01:57:51 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)icu.h 5.6 (Berkeley) 5/9/91 39 */ 40 41 /* 42 * AT/386 Interrupt Control constants 43 * W. Jolitz 8/89 44 */ 45 46 #ifndef _ARM32_ISA_ICU_H_ 47 #define _ARM32_ISA_ICU_H_ 48 49 #ifndef _LOCORE 50 51 /* 52 * Interrupt "level" mechanism variables, masks, and macros 53 */ 54 extern unsigned imen; /* interrupt mask enable */ 55 56 #define SET_ICUS() { \ 57 outb(IO_ICU1 + 1, imen); \ 58 outb(IO_ICU2 + 1, imen >> 8); \ 59 } 60 61 #endif /* !_LOCORE */ 62 63 /* 64 * Interrupt enable bits -- in order of priority 65 */ 66 #define IRQ_SLAVE 2 67 68 /* 69 * Interrupt Control offset into Interrupt descriptor table (IDT) 70 */ 71 #define ICU_OFFSET 32 /* 0-31 are processor exceptions */ 72 #define ICU_LEN 16 /* 32-47 are ISA interrupts */ 73 74 #endif /* !_ARM32_ISA_ICU_H_ */ 75