NetBSD/sys/arch/arm26/include/intr.h

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/* $NetBSD: intr.h,v 1.4 2000/08/25 16:43:47 bjh21 Exp $ */
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/*-
* Copyright (c) 1998, 2000 Ben Harris
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* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/* This file is part of NetBSD/arm26 -- a port of NetBSD to ARM2/3 machines. */
/*
* intr.h - Interrupt stuff for the consumption of MI code.
*
* arm26-specific functions are in irq.h
*/
#ifndef _ARM26_INTR_H_
#define _ARM26_INTR_H_
/*
* These are the different SPL states
*
* Each state has an interrupt mask associated with it which
* indicate which interrupts are allowed.
*/
#define IPL_NONE 0
#define IPL_SOFTCLOCK 1
#define IPL_SOFTNET 2
#define IPL_SOFTSERIAL IPL_SOFTNET
#define IPL_BIO 3
#define IPL_NET 4
#define IPL_TTY 5
#define IPL_LPT IPL_TTY
#define IPL_IMP 6
#define IPL_AUDIO 7
#define IPL_SERIAL 8
#define IPL_CLOCK 9
#define IPL_STATCLOCK 10
#define IPL_SCHED 11
#define IPL_HIGH 12
#define NIPL IPL_HIGH + 1
#if defined(_KERNEL) && !defined(ASSEMBLER)
#define splsoftnet() raisespl(IPL_SOFTNET)
#define splsoft() splsoftnet()
#define splsoftserial() splsoftnet()
#define splsoftclock() raisespl(IPL_SOFTCLOCK)
#define splbio() raisespl(IPL_BIO)
#define splnet() raisespl(IPL_NET)
#define spltty() raisespl(IPL_TTY)
#define spllpt() raisespl(IPL_LPT)
#define splimp() raisespl(IPL_IMP)
#define splaudio() raisespl(IPL_AUDIO)
#define splserial() raisespl(IPL_SERIAL)
#define splclock() raisespl(IPL_CLOCK)
#define splstatclock() raisespl(IPL_STATCLOCK)
#define splhigh() raisespl(IPL_HIGH)
#define splsched() splhigh()
#define spllock() splhigh()
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#define spl0() lowerspl(IPL_NONE)
#define spllowersoftclock() lowerspl(IPL_SOFTCLOCK)
#define splx(s) lowerspl(s)
extern int current_spl_level; /* XXX tautological name */
extern int raisespl(int);
extern void lowerspl(int);
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extern int hardsplx(int);
/*
* Interrupt sharing types
* (not currently used on arm26)
*/
#define IST_UNUSABLE -1 /* interrupt cannot be used */
#define IST_NONE 0 /* none (dummy) */
#define IST_PULSE 1 /* pulsed */
#define IST_EDGE 2 /* edge-triggered */
#define IST_LEVEL 3 /* level-triggered */
/*
* Soft Interrupts
*/
/* Old-fashioned soft interrupts */
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extern void setsoftclock(void);
extern void setsoftnet(void);
/* New-fangled generic soft interrupts */
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#define __GENERIC_SOFT_INTERRUPTS
extern void *softintr_establish(int, void (*)(void *), void *);
extern void softintr_disestablish(void *);
extern void softintr_schedule(void *);
/* Machine-dependent soft-interrupt servicing routines */
extern void softintr_init(void);
extern void dosoftints(int);
#endif /* _KERNEL && !ASSEMBLER */
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#endif