1 /* $NetBSD: clk_dcf7000.c,v 1.6 2020/05/25 20:47:25 christos Exp $ */ 2 3 /* 4 * /src/NTP/ntp4-dev/libparse/clk_dcf7000.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A 5 * 6 * clk_dcf7000.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A 7 * 8 * ELV DCF7000 module 9 * 10 * Copyright (c) 1995-2005 by Frank Kardel <kardel <AT> ntp.org> 11 * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. Neither the name of the author nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 */ 38 39 #ifdef HAVE_CONFIG_H 40 # include <config.h> 41 #endif 42 43 #if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_DCF7000) 44 45 #include "ntp_fp.h" 46 #include "ntp_unixtime.h" 47 #include "ntp_calendar.h" 48 49 #include "parse.h" 50 51 #ifndef PARSESTREAM 52 #include "ntp_stdlib.h" 53 #include <stdio.h> 54 #else 55 #include "sys/parsestreams.h" 56 extern int printf (const char *, ...); 57 #endif 58 59 static struct format dcf7000_fmt = 60 { /* ELV DCF7000 */ 61 { 62 { 6, 2}, { 3, 2}, { 0, 2}, 63 { 12, 2}, { 15, 2}, { 18, 2}, 64 { 9, 2}, { 21, 2}, 65 }, 66 (const unsigned char *)" - - - - - - - \r", 67 0 68 }; 69 70 static parse_cvt_fnc_t cvt_dcf7000; 71 static parse_inp_fnc_t inp_dcf7000; 72 73 clockformat_t clock_dcf7000 = 74 { 75 inp_dcf7000, /* DCF7000 input handling */ 76 cvt_dcf7000, /* ELV DCF77 conversion */ 77 0, /* no direct PPS monitoring */ 78 (void *)&dcf7000_fmt, /* conversion configuration */ 79 "ELV DCF7000", /* ELV clock */ 80 24, /* string buffer */ 81 0 /* no private data (complete packets) */ 82 }; 83 84 /* 85 * parse_cvt_fnc_t cvt_dcf7000 86 * 87 * convert dcf7000 type format 88 */ 89 static u_long 90 cvt_dcf7000( 91 unsigned char *buffer, 92 int size, 93 struct format *format, 94 clocktime_t *clock_time, 95 void *local 96 ) 97 { 98 if (!Strok(buffer, format->fixed_string)) 99 { 100 return CVT_NONE; 101 } 102 else 103 { 104 if (Stoi(&buffer[format->field_offsets[O_DAY].offset], &clock_time->day, 105 format->field_offsets[O_DAY].length) || 106 Stoi(&buffer[format->field_offsets[O_MONTH].offset], &clock_time->month, 107 format->field_offsets[O_MONTH].length) || 108 Stoi(&buffer[format->field_offsets[O_YEAR].offset], &clock_time->year, 109 format->field_offsets[O_YEAR].length) || 110 Stoi(&buffer[format->field_offsets[O_HOUR].offset], &clock_time->hour, 111 format->field_offsets[O_HOUR].length) || 112 Stoi(&buffer[format->field_offsets[O_MIN].offset], &clock_time->minute, 113 format->field_offsets[O_MIN].length) || 114 Stoi(&buffer[format->field_offsets[O_SEC].offset], &clock_time->second, 115 format->field_offsets[O_SEC].length)) 116 { 117 return CVT_FAIL|CVT_BADFMT; 118 } 119 else 120 { 121 unsigned char *f = &buffer[format->field_offsets[O_FLAGS].offset]; 122 long flags; 123 124 clock_time->flags = 0; 125 clock_time->usecond = 0; 126 127 if (Stoi(f, &flags, format->field_offsets[O_FLAGS].length)) 128 { 129 return CVT_FAIL|CVT_BADFMT; 130 } 131 else 132 { 133 if (flags & 0x1) 134 clock_time->utcoffset = -2*60*60; 135 else 136 clock_time->utcoffset = -1*60*60; 137 138 if (flags & 0x2) 139 clock_time->flags |= PARSEB_ANNOUNCE; 140 141 if (flags & 0x4) 142 clock_time->flags |= PARSEB_NOSYNC; 143 } 144 return CVT_OK; 145 } 146 } 147 } 148 149 /* 150 * parse_inp_fnc_t inp_dcf700 151 * 152 * grab data from input stream 153 */ 154 static u_long 155 inp_dcf7000( 156 parse_t *parseio, 157 char ch, 158 timestamp_t *tstamp 159 ) 160 { 161 unsigned int rtc; 162 163 parseprintf(DD_PARSE, ("inp_dcf7000(0x%p, 0x%x, ...)\n", (void*)parseio, ch)); 164 165 switch (ch) 166 { 167 case '\r': 168 parseprintf(DD_PARSE, ("inp_dcf7000: EOL seen\n")); 169 parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */ 170 if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP) 171 return parse_end(parseio); 172 else 173 return rtc; 174 175 default: 176 return parse_addchar(parseio, ch); 177 } 178 } 179 180 #else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_DCF7000) */ 181 int clk_dcf7000_bs; 182 #endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_DCF7000) */ 183 184 /* 185 * History: 186 * 187 * clk_dcf7000.c,v 188 * Revision 4.10 2005/04/16 17:32:10 kardel 189 * update copyright 190 * 191 * Revision 4.9 2004/11/14 15:29:41 kardel 192 * support PPSAPI, upgrade Copyright to Berkeley style 193 * 194 * Revision 4.6 1999/11/28 09:13:49 kardel 195 * RECON_4_0_98F 196 * 197 * Revision 4.5 1998/06/14 21:09:34 kardel 198 * Sun acc cleanup 199 * 200 * Revision 4.4 1998/06/13 12:01:59 kardel 201 * fix SYSV clock name clash 202 * 203 * Revision 4.3 1998/06/12 15:22:27 kardel 204 * fix prototypes 205 * 206 * Revision 4.2 1998/06/12 09:13:24 kardel 207 * conditional compile macros fixed 208 * printf prototype 209 * 210 * Revision 4.1 1998/05/24 09:39:51 kardel 211 * implementation of the new IO handling model 212 * 213 * Revision 4.0 1998/04/10 19:45:28 kardel 214 * Start 4.0 release version numbering 215 * 216 * from V3 3.18 log info deleted 1998/04/11 kardel 217 */ 218