Annotation of prex-old/usr/test/time/time.c, Revision 1.1.1.1
1.1 nbrk 1: /*
2: * Copyright (c) 2005, Kohsuke Ohtani
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. Neither the name of the author nor the names of any co-contributors
14: * may be used to endorse or promote products derived from this software
15: * without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: */
29:
30: /*
31: * time.c - test time function
32: */
33:
34: #include <prex/prex.h>
35: #include <stdio.h>
36:
37: u_long
38: get_time(void)
39: {
40: device_t rtc_dev;
41: int err;
42: u_long sec;
43: size_t len;
44:
45: err = device_open("rtc", 0, &rtc_dev);
46: if (err) {
47: printf("error to open rtc device!\n");
48: return 0;
49: }
50: len = sizeof(sec);
51: err = device_read(rtc_dev, &sec, &len, 0);
52: if (err) {
53: printf("error in reading from rtc device\n");
54: device_close(rtc_dev);
55: return 0;
56: }
57: device_close(rtc_dev);
58: return sec;
59: }
60:
61: int
62: main(int argc, char *argv[])
63: {
64: u_long sys_time;
65: unsigned int sec, min, hour;
66:
67: printf("Time test program\n");
68:
69: sys_time = get_time();
70: if (sys_time == 0)
71: return 0;
72:
73: sec = sys_time % 60;
74: min = (sys_time / 60) % 60;
75: hour = (sys_time / 60 / 60) % 24;
76: printf("Current time: %d:%d:%d\n", hour, min, sec);
77:
78: return 0;
79: }
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