NetBSD/sys/arch/mac68k/include/intr.h

119 lines
4.0 KiB
C

/* $NetBSD: intr.h,v 1.20 2001/04/13 23:30:00 thorpej Exp $ */
/*
* Copyright (C) 1997 Scott Reynolds
* 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.
*/
#ifndef _MAC68K_INTR_H_
#define _MAC68K_INTR_H_
#include <machine/psl.h>
#ifdef _KERNEL
/* spl0 requires checking for software interrupts */
/*
* This array contains the appropriate PSL_S|PSL_IPL? values
* to raise interrupt priority to the requested level.
*/
extern unsigned short mac68k_ipls[];
#define MAC68K_IPL_SOFT 0
#define MAC68K_IPL_BIO 1
#define MAC68K_IPL_NET 2
#define MAC68K_IPL_TTY 3
#define MAC68K_IPL_IMP 4
#define MAC68K_IPL_AUDIO 5
#define MAC68K_IPL_SERIAL 6
#define MAC68K_IPL_ADB 7
#define MAC68K_IPL_CLOCK 8
#define MAC68K_IPL_STATCLOCK 9
#define MAC68K_IPL_SCHED 10
#define MAC68K_IPL_HIGH 11
#define MAC68K_NIPLS 12
/* These spl calls are _not_ to be used by machine-independent code. */
#define spladb() _splraise(mac68k_ipls[MAC68K_IPL_ADB])
#define splzs() splserial()
/*
* These should be used for:
* 1) ensuring mutual exclusion (why use processor level?)
* 2) allowing faster devices to take priority
*/
#define spllowersoftclock() spl1()
#define splsoftclock() _splraise(mac68k_ipls[MAC68K_IPL_SOFT])
#define splsoftnet() _splraise(mac68k_ipls[MAC68K_IPL_SOFT])
#define spltty() _splraise(mac68k_ipls[MAC68K_IPL_TTY])
#define splbio() _splraise(mac68k_ipls[MAC68K_IPL_BIO])
#define splnet() _splraise(mac68k_ipls[MAC68K_IPL_NET])
#define splvm() _splraise(mac68k_ipls[MAC68K_IPL_IMP])
#define splaudio() _splraise(mac68k_ipls[MAC68K_IPL_AUDIO])
#define splclock() _splraise(mac68k_ipls[MAC68K_IPL_CLOCK])
#define splstatclock() _splraise(mac68k_ipls[MAC68K_IPL_STATCLOCK])
#define splsched() _splraise(mac68k_ipls[MAC68K_IPL_SCHED])
#define splserial() _splraise(mac68k_ipls[MAC68K_IPL_SERIAL])
#define splhigh() spl7()
#define spllock() spl7()
/* watch out for side effects */
#define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0())
/*
* simulated software interrupt register
*/
extern volatile u_int8_t ssir;
#define SIR_NET 0x01
#define SIR_CLOCK 0x02
#define SIR_SERIAL 0x04
#define SIR_DTMGR 0x08
#define SIR_ADB 0x10
#define siron(mask) \
__asm __volatile ( "orb %1,%0" : "=m" (ssir) : "i" (mask))
#define siroff(mask) \
__asm __volatile ( "andb %1,%0" : "=m" (ssir) : "ir" (~(mask)));
#define setsoftnet() siron(SIR_NET)
#define setsoftclock() siron(SIR_CLOCK)
#define setsoftserial() siron(SIR_SERIAL)
#define setsoftdtmgr() siron(SIR_DTMGR)
#define setsoftadb() siron(SIR_ADB)
/* intr.c */
void intr_init __P((void));
void intr_establish __P((int (*)(void *), void *, int));
void intr_disestablish __P((int));
void intr_dispatch __P((int));
/* locore.s */
int spl0 __P((void));
#endif /* _KERNEL */
#endif /* _MAC68K_INTR_H_ */