119 lines
4.0 KiB
C
119 lines
4.0 KiB
C
/* $NetBSD: intr.h,v 1.21 2005/01/15 16:00:59 chs 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(void);
|
|
void intr_establish(int (*)(void *), void *, int);
|
|
void intr_disestablish(int);
|
|
void intr_dispatch(int);
|
|
|
|
/* locore.s */
|
|
int spl0(void);
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _MAC68K_INTR_H_ */
|