1/* $NetBSD: sic6351.c,v 1.5 2009/03/14 15:36:04 dsl Exp $ */
2
3/*
4 * Copyright (c) 1997, 1999
5 *	Matthias Drochner.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28
29#include <sys/cdefs.h>
30__KERNEL_RCSID(0, "$NetBSD: sic6351.c,v 1.5 2009/03/14 15:36:04 dsl Exp $");
31
32#include <sys/param.h>
33#include <sys/systm.h>
34
35#include <machine/cpu.h>
36#include <machine/pte.h>
37
38void sicinit(void*);
39int act2icr(int);
40void sic_enable_int(int, int, int, int, int);
41
42static char *sicbase;
43
44void
45sicinit(void *base)
46{
47	int i;
48
49	sicbase = base;
50
51	for(i = 0x100; i <= 0x1a4; i += 4)
52		*(volatile int *)(sicbase + i) = 0;
53}
54
55int
56act2icr(int act)
57{
58	if (act == 17)
59		return (0x90); /* ILACC */
60	if (act == 19)
61		return (0x94); /* ZS */
62	if (act == 25)
63		return (0xa4); /* RTC */
64	if (act == 39)
65		return (0x6c); /* ABORT A */
66	panic("sic: unknown act %d", act);
67}
68
69void
70sic_enable_int(int nr, int type, int icod, int level, int vector)
71{
72
73	if (icod == 0)
74		*(volatile int *)(sicbase + 0x300 + nr * 4) = vector;
75	*(volatile int *)(sicbase + 0x200 + nr * 4) = icod;
76	*(volatile int *)(sicbase + 0x100 + act2icr(nr))
77		= 0x80 | (type << 4) | level;
78}
79