mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-28 05:55:27 +01:00
99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from: @(#)icu.h 5.6 (Berkeley) 5/9/91
|
|
* $Id: icu.h,v 1.6 1994/09/18 23:18:32 bde Exp $
|
|
*/
|
|
|
|
/*
|
|
* AT/386 Interrupt Control constants
|
|
* W. Jolitz 8/89
|
|
*/
|
|
|
|
#ifndef _I386_ISA_ICU_H_
|
|
#define _I386_ISA_ICU_H_
|
|
|
|
#ifndef LOCORE
|
|
|
|
/*
|
|
* Interrupt "level" mechanism variables, masks, and macros
|
|
*/
|
|
extern unsigned imen; /* interrupt mask enable */
|
|
|
|
#define INTREN(s) (imen &= ~(s), SET_ICUS())
|
|
#define INTRDIS(s) (imen |= (s), SET_ICUS())
|
|
#define INTRMASK(msk,s) (msk |= (s))
|
|
#define INTRUNMASK(msk,s) (msk &= ~(s))
|
|
#if 0
|
|
#define SET_ICUS() (outb(IO_ICU1 + 1, imen), outb(IU_ICU2 + 1, imen >> 8))
|
|
#else
|
|
/*
|
|
* XXX - IO_ICU* are defined in isa.h, not icu.h, and nothing much bothers to
|
|
* include isa.h, while too many things include icu.h.
|
|
*/
|
|
#define SET_ICUS() (outb(0x21, imen), outb(0xa1, imen >> 8))
|
|
#endif
|
|
|
|
#endif /* LOCORE */
|
|
|
|
/*
|
|
* Interrupt enable bits - in normal order of priority (which we change)
|
|
*/
|
|
#define IRQ0 0x0001 /* highest priority - timer */
|
|
#define IRQ1 0x0002
|
|
#define IRQ_SLAVE 0x0004
|
|
#define IRQ8 0x0100
|
|
#define IRQ9 0x0200
|
|
#define IRQ2 IRQ9
|
|
#define IRQ10 0x0400
|
|
#define IRQ11 0x0800
|
|
#define IRQ12 0x1000
|
|
#define IRQ13 0x2000
|
|
#define IRQ14 0x4000
|
|
#define IRQ15 0x8000
|
|
#define IRQ3 0x0008 /* this is highest after rotation */
|
|
#define IRQ4 0x0010
|
|
#define IRQ5 0x0020
|
|
#define IRQ6 0x0040
|
|
#define IRQ7 0x0080 /* lowest - parallel printer */
|
|
|
|
/*
|
|
* Interrupt Control offset into Interrupt descriptor table (IDT)
|
|
*/
|
|
#define ICU_OFFSET 32 /* 0-31 are processor exceptions */
|
|
#define ICU_LEN 16 /* 32-47 are ISA interrupts */
|
|
|
|
#endif /* !_I386_ISA_ICU_H_ */
|