clock.c revision 1.3.24.1 1 1.3.24.1 skrll /* $NetBSD: clock.c,v 1.3.24.1 2004/08/03 10:38:16 skrll Exp $ */
2 1.1 chuck
3 1.1 chuck /*
4 1.1 chuck * Copyright (c) 1992, 1993
5 1.1 chuck * The Regents of the University of California. All rights reserved.
6 1.3.24.1 skrll *
7 1.3.24.1 skrll * This software was developed by the Computer Systems Engineering group
8 1.3.24.1 skrll * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
9 1.3.24.1 skrll * contributed to Berkeley.
10 1.3.24.1 skrll *
11 1.3.24.1 skrll * All advertising materials mentioning features or use of this software
12 1.3.24.1 skrll * must display the following acknowledgement:
13 1.3.24.1 skrll * This product includes software developed by the University of
14 1.3.24.1 skrll * California, Lawrence Berkeley Laboratory.
15 1.3.24.1 skrll *
16 1.3.24.1 skrll * Redistribution and use in source and binary forms, with or without
17 1.3.24.1 skrll * modification, are permitted provided that the following conditions
18 1.3.24.1 skrll * are met:
19 1.3.24.1 skrll * 1. Redistributions of source code must retain the above copyright
20 1.3.24.1 skrll * notice, this list of conditions and the following disclaimer.
21 1.3.24.1 skrll * 2. Redistributions in binary form must reproduce the above copyright
22 1.3.24.1 skrll * notice, this list of conditions and the following disclaimer in the
23 1.3.24.1 skrll * documentation and/or other materials provided with the distribution.
24 1.3.24.1 skrll * 3. Neither the name of the University nor the names of its contributors
25 1.3.24.1 skrll * may be used to endorse or promote products derived from this software
26 1.3.24.1 skrll * without specific prior written permission.
27 1.3.24.1 skrll *
28 1.3.24.1 skrll * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 1.3.24.1 skrll * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 1.3.24.1 skrll * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 1.3.24.1 skrll * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 1.3.24.1 skrll * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 1.3.24.1 skrll * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 1.3.24.1 skrll * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 1.3.24.1 skrll * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 1.3.24.1 skrll * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 1.3.24.1 skrll * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 1.3.24.1 skrll * SUCH DAMAGE.
39 1.3.24.1 skrll *
40 1.3.24.1 skrll * @(#)clock.c 8.1 (Berkeley) 6/11/93
41 1.3.24.1 skrll */
42 1.3.24.1 skrll
43 1.3.24.1 skrll /*
44 1.1 chuck * Copyright (c) 1994 Gordon W. Ross
45 1.1 chuck * Copyright (c) 1993 Adam Glass
46 1.1 chuck *
47 1.1 chuck * This software was developed by the Computer Systems Engineering group
48 1.1 chuck * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
49 1.1 chuck * contributed to Berkeley.
50 1.1 chuck *
51 1.1 chuck * All advertising materials mentioning features or use of this software
52 1.1 chuck * must display the following acknowledgement:
53 1.1 chuck * This product includes software developed by the University of
54 1.1 chuck * California, Lawrence Berkeley Laboratory.
55 1.1 chuck *
56 1.1 chuck * Redistribution and use in source and binary forms, with or without
57 1.1 chuck * modification, are permitted provided that the following conditions
58 1.1 chuck * are met:
59 1.1 chuck * 1. Redistributions of source code must retain the above copyright
60 1.1 chuck * notice, this list of conditions and the following disclaimer.
61 1.1 chuck * 2. Redistributions in binary form must reproduce the above copyright
62 1.1 chuck * notice, this list of conditions and the following disclaimer in the
63 1.1 chuck * documentation and/or other materials provided with the distribution.
64 1.1 chuck * 3. All advertising materials mentioning features or use of this software
65 1.1 chuck * must display the following acknowledgement:
66 1.1 chuck * This product includes software developed by the University of
67 1.1 chuck * California, Berkeley and its contributors.
68 1.1 chuck * 4. Neither the name of the University nor the names of its contributors
69 1.1 chuck * may be used to endorse or promote products derived from this software
70 1.1 chuck * without specific prior written permission.
71 1.1 chuck *
72 1.1 chuck * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
73 1.1 chuck * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
74 1.1 chuck * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
75 1.1 chuck * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
76 1.1 chuck * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
77 1.1 chuck * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
78 1.1 chuck * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
79 1.1 chuck * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
80 1.1 chuck * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
81 1.1 chuck * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
82 1.1 chuck * SUCH DAMAGE.
83 1.1 chuck *
84 1.1 chuck * @(#)clock.c 8.1 (Berkeley) 6/11/93
85 1.1 chuck */
86 1.1 chuck
87 1.1 chuck /*
88 1.1 chuck * Clock driver.
89 1.1 chuck */
90 1.1 chuck
91 1.1 chuck #include "sboot.h"
92 1.1 chuck #include "clockreg.h"
93 1.1 chuck
94 1.3 jdolecek #include <machine/prom.h>
95 1.3 jdolecek #include "libsa.h"
96 1.1 chuck
97 1.3 jdolecek static struct clockreg *clockreg = (struct clockreg *) CLOCK_ADDR;
98 1.1 chuck
99 1.1 chuck /*
100 1.1 chuck * Set up the system's time, given a `reasonable' time value.
101 1.1 chuck */
102 1.1 chuck u_long time()
103 1.1 chuck {
104 1.2 scw struct clockreg *cl = clockreg;
105 1.1 chuck int sec, min, hour, day, mon, year;
106 1.1 chuck
107 1.1 chuck cl->cl_csr |= CLK_READ; /* enable read (stop time) */
108 1.1 chuck sec = cl->cl_sec;
109 1.1 chuck min = cl->cl_min;
110 1.1 chuck hour = cl->cl_hour;
111 1.1 chuck day = cl->cl_mday;
112 1.1 chuck mon = cl->cl_month;
113 1.1 chuck year = cl->cl_year;
114 1.1 chuck cl->cl_csr &= ~CLK_READ; /* time wears on */
115 1.1 chuck return(chiptotime(sec, min, hour, day, mon, year));
116 1.1 chuck }
117