137 lines
3.9 KiB
C
137 lines
3.9 KiB
C
/* $NetBSD: intr.h,v 1.21 2009/07/08 12:23:10 tsutsui Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Leo Weppelman.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _ATARI_INTR_H_
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#define _ATARI_INTR_H_
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#define IPL_NONE 0 /* disable no interrupts */
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#define IPL_SOFTCLOCK 1
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#define IPL_SOFTBIO 2
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#define IPL_SOFTNET 3
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#define IPL_SOFTSERIAL 4
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#define IPL_VM 5
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#define IPL_SCHED 6
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#define IPL_HIGH 7
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#define NIPL 8
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#define IST_UNUSABLE -1 /* interrupt cannot be used */
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#define IST_NONE 0 /* none (dummy) */
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#define IST_PULSE 1 /* pulsed */
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#define IST_EDGE 2 /* edge-triggered */
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#define IST_LEVEL 3 /* level-triggered */
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/*
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* spl functions; all but spl0 are done in-line
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*/
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#include <machine/psl.h>
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/* spl0 requires checking for software interrupts */
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#define splsoftclock() splraise1()
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#define splsoftbio() splraise1()
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#define splsoftnet() splraise1()
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#define splsoftserial() splraise1()
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#define splvm() splraise4()
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#define splsched() splraise6()
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#define splhigh() spl7()
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#define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0())
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#ifdef _KERNEL
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int spl0(void);
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extern const uint16_t ipl2psl_table[NIPL];
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extern int idepth;
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typedef int ipl_t;
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typedef struct {
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uint16_t _psl;
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} ipl_cookie_t;
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static inline ipl_cookie_t
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makeiplcookie(ipl_t ipl)
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{
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return (ipl_cookie_t){._psl = ipl2psl_table[ipl]};
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}
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static inline int
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splraiseipl(ipl_cookie_t icookie)
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{
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return _splraise(icookie._psl);
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}
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#include <sys/queue.h>
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#include <machine/cpu.h> /* XXX: for clockframe */
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struct clockframe;
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#define AUTO_VEC 0x0001 /* We're dealing with an auto-vector */
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#define USER_VEC 0x0002 /* We're dealing with an user-vector */
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#define FAST_VEC 0x0010 /* Fast, stash right into vector-table */
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#define ARG_CLOCKFRAME 0x0020 /* Supply clockframe as an argument */
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/*
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* Interrupt handler chains. intr_establish() inserts a handler into
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* the list. The handler is called with its (single) argument or with a
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* 'standard' clockframe. This depends on 'ih_type'.
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*/
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typedef int (*hw_ifun_t)(void *, int);
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struct intrhand {
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LIST_ENTRY(intrhand) ih_link;
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hw_ifun_t ih_fun;
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void *ih_arg;
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int ih_type;
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int ih_pri;
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int ih_vector;
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u_long *ih_intrcnt;
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};
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void intr_init(void);
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struct intrhand *intr_establish(int, int, int, hw_ifun_t, void *);
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int intr_disestablish(struct intrhand *);
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void intr_dispatch(struct clockframe);
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void intr_glue(void);
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/*
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* Exported by intrcnt.h
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*/
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extern u_long autovects[];
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extern u_long intrcnt_auto[];
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extern u_long uservects[];
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extern u_long intrcnt_user[];
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#endif /* _KERNEL */
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#endif /* _ATARI_INTR_H_ */
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