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icu.h revision 1.1 
      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