1 /* $NetBSD: sic6351.c,v 1.6 2009/03/14 21:04:08 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 1.6 2009/03/14 21:04:08 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
38 void sicinit(void*);
39 int act2icr(int);
40 void sic_enable_int(int, int, int, int, int);
41
42 static char *sicbase;
43
44 void
sicinit(void * base)45 sicinit(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
55 int
act2icr(int act)56 act2icr(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
69 void
sic_enable_int(int nr,int type,int icod,int level,int vector)70 sic_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