1 /*
2 * /src/NTP/ntp4-dev/libparse/clk_dcf7000.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A
3 *
4 * clk_dcf7000.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A
5 *
6 * ELV DCF7000 module
7 *
8 * Copyright (c) 1995-2005 by Frank Kardel <kardel <AT> ntp.org>
9 * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the author nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 */
36
37 #ifdef HAVE_CONFIG_H
38 # include <config.h>
39 #endif
40
41 #if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_DCF7000)
42
43 #include "ntp_fp.h"
44 #include "ntp_unixtime.h"
45 #include "ntp_calendar.h"
46
47 #include "parse.h"
48
49 #ifndef PARSESTREAM
50 #include "ntp_stdlib.h"
51 #include <stdio.h>
52 #else
53 #include "sys/parsestreams.h"
54 extern int printf (const char *, ...);
55 #endif
56
57 static struct format dcf7000_fmt =
58 { /* ELV DCF7000 */
59 {
60 { 6, 2}, { 3, 2}, { 0, 2},
61 { 12, 2}, { 15, 2}, { 18, 2},
62 { 9, 2}, { 21, 2},
63 },
64 (const unsigned char *)" - - - - - - - \r",
65 0
66 };
67
68 static parse_cvt_fnc_t cvt_dcf7000;
69 static parse_inp_fnc_t inp_dcf7000;
70
71 clockformat_t clock_dcf7000 =
72 {
73 inp_dcf7000, /* DCF7000 input handling */
74 cvt_dcf7000, /* ELV DCF77 conversion */
75 0, /* no direct PPS monitoring */
76 (void *)&dcf7000_fmt, /* conversion configuration */
77 "ELV DCF7000", /* ELV clock */
78 24, /* string buffer */
79 0 /* no private data (complete packets) */
80 };
81
82 /*
83 * parse_cvt_fnc_t cvt_dcf7000
84 *
85 * convert dcf7000 type format
86 */
87 static u_long
cvt_dcf7000(unsigned char * buffer,int size,struct format * format,clocktime_t * clock_time,void * local)88 cvt_dcf7000(
89 unsigned char *buffer,
90 int size,
91 struct format *format,
92 clocktime_t *clock_time,
93 void *local
94 )
95 {
96 if (!Strok(buffer, format->fixed_string))
97 {
98 return CVT_NONE;
99 }
100 else
101 {
102 if (Stoi(&buffer[format->field_offsets[O_DAY].offset], &clock_time->day,
103 format->field_offsets[O_DAY].length) ||
104 Stoi(&buffer[format->field_offsets[O_MONTH].offset], &clock_time->month,
105 format->field_offsets[O_MONTH].length) ||
106 Stoi(&buffer[format->field_offsets[O_YEAR].offset], &clock_time->year,
107 format->field_offsets[O_YEAR].length) ||
108 Stoi(&buffer[format->field_offsets[O_HOUR].offset], &clock_time->hour,
109 format->field_offsets[O_HOUR].length) ||
110 Stoi(&buffer[format->field_offsets[O_MIN].offset], &clock_time->minute,
111 format->field_offsets[O_MIN].length) ||
112 Stoi(&buffer[format->field_offsets[O_SEC].offset], &clock_time->second,
113 format->field_offsets[O_SEC].length))
114 {
115 return CVT_FAIL|CVT_BADFMT;
116 }
117 else
118 {
119 unsigned char *f = &buffer[format->field_offsets[O_FLAGS].offset];
120 long flags;
121
122 clock_time->flags = 0;
123 clock_time->usecond = 0;
124
125 if (Stoi(f, &flags, format->field_offsets[O_FLAGS].length))
126 {
127 return CVT_FAIL|CVT_BADFMT;
128 }
129 else
130 {
131 if (flags & 0x1)
132 clock_time->utcoffset = -2*60*60;
133 else
134 clock_time->utcoffset = -1*60*60;
135
136 if (flags & 0x2)
137 clock_time->flags |= PARSEB_ANNOUNCE;
138
139 if (flags & 0x4)
140 clock_time->flags |= PARSEB_NOSYNC;
141 }
142 return CVT_OK;
143 }
144 }
145 }
146
147 /*
148 * parse_inp_fnc_t inp_dcf700
149 *
150 * grab data from input stream
151 */
152 static u_long
inp_dcf7000(parse_t * parseio,char ch,timestamp_t * tstamp)153 inp_dcf7000(
154 parse_t *parseio,
155 char ch,
156 timestamp_t *tstamp
157 )
158 {
159 unsigned int rtc;
160
161 parseprintf(DD_PARSE, ("inp_dcf7000(0x%p, 0x%x, ...)\n", (void*)parseio, ch));
162
163 switch (ch)
164 {
165 case '\r':
166 parseprintf(DD_PARSE, ("inp_dcf7000: EOL seen\n"));
167 parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
168 if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
169 return parse_end(parseio);
170 else
171 return rtc;
172
173 default:
174 return parse_addchar(parseio, ch);
175 }
176 }
177
178 #else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_DCF7000) */
179 int clk_dcf7000_bs;
180 #endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_DCF7000) */
181
182 /*
183 * History:
184 *
185 * clk_dcf7000.c,v
186 * Revision 4.10 2005/04/16 17:32:10 kardel
187 * update copyright
188 *
189 * Revision 4.9 2004/11/14 15:29:41 kardel
190 * support PPSAPI, upgrade Copyright to Berkeley style
191 *
192 * Revision 4.6 1999/11/28 09:13:49 kardel
193 * RECON_4_0_98F
194 *
195 * Revision 4.5 1998/06/14 21:09:34 kardel
196 * Sun acc cleanup
197 *
198 * Revision 4.4 1998/06/13 12:01:59 kardel
199 * fix SYSV clock name clash
200 *
201 * Revision 4.3 1998/06/12 15:22:27 kardel
202 * fix prototypes
203 *
204 * Revision 4.2 1998/06/12 09:13:24 kardel
205 * conditional compile macros fixed
206 * printf prototype
207 *
208 * Revision 4.1 1998/05/24 09:39:51 kardel
209 * implementation of the new IO handling model
210 *
211 * Revision 4.0 1998/04/10 19:45:28 kardel
212 * Start 4.0 release version numbering
213 *
214 * from V3 3.18 log info deleted 1998/04/11 kardel
215 */
216