1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* /src/NTP/ntp4-dev/libparse/clk_trimtaip.c,v 4.11 2005/04/16 17:32:10 kardel RELEASE_20050508_A
*
* clk_trimtaip.c,v 4.11 2005/04/16 17:32:10 kardel RELEASE_20050508_A
*
* Trimble SV6 clock support - several collected codepieces
*
* Copyright (c) 1995-2005 by Frank Kardel <kardel <AT> ntp.org>
* Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_TRIMTAIP)
#include "ntp_fp.h"
#include "ntp_unixtime.h"
#include "ntp_calendar.h"
#include "parse.h"
#ifndef PARSESTREAM
#include "ntp_stdlib.h"
#include <stdio.h>
#else
#include "sys/parsestreams.h"
extern int printf (const char *, ...);
#endif
/* 0000000000111111111122222222223333333 / char
* 0123456789012345678901234567890123456 \ posn
* >RTMhhmmssdddDDMMYYYYoodnnvrrrrr;*xx< Actual
* ----33445566600112222BB7__-_____--99- Parse
* >RTM 1 ;* <", Check
*/
#define hexval(x) (('0' <= (x) && (x) <= '9') ? (x) - '0' : \
('a' <= (x) && (x) <= 'f') ? (x) - 'a' + 10 : \
('A' <= (x) && (x) <= 'F') ? (x) - 'A' + 10 : \
-1)
#define O_USEC O_WDAY
#define O_GPSFIX O_FLAGS
#define O_CHKSUM O_UTCHOFFSET
static struct format trimsv6_fmt =
{ { { 13, 2 }, {15, 2}, { 17, 4}, /* Day, Month, Year */
{ 4, 2 }, { 6, 2}, { 8, 2}, /* Hour, Minute, Second */
{ 10, 3 }, {23, 1}, { 0, 0}, /* uSec, FIXes (WeekDAY, FLAGS, ZONE) */
{ 34, 2 }, { 0, 0}, { 21, 2}, /* cksum, -, utcS (UTC[HMS]OFFSET) */
},
(const unsigned char *)">RTM 1 ;* <",
0
};
static parse_cvt_fnc_t cvt_trimtaip;
static parse_inp_fnc_t inp_trimtaip;
clockformat_t clock_trimtaip =
{
inp_trimtaip, /* no input handling */
cvt_trimtaip, /* Trimble conversion */
pps_one, /* easy PPS monitoring */
(void *)&trimsv6_fmt, /* conversion configuration */
"Trimble TAIP",
37, /* string buffer */
0 /* no private data */
};
/* parse_cvt_fnc_t cvt_trimtaip */
static u_long
cvt_trimtaip(
unsigned char *buffer,
int size,
struct format *format,
clocktime_t *clock_time,
void *local
)
{
long gpsfix;
u_char calc_csum = 0;
long recv_csum;
int i;
if (!Strok(buffer, format->fixed_string)) return CVT_NONE;
#define OFFS(x) format->field_offsets[(x)].offset
#define STOI(x, y) \
Stoi(&buffer[OFFS(x)], y, \
format->field_offsets[(x)].length)
if ( STOI(O_DAY, &clock_time->day) ||
STOI(O_MONTH, &clock_time->month) ||
STOI(O_YEAR, &clock_time->year) ||
STOI(O_HOUR, &clock_time->hour) ||
STOI(O_MIN, &clock_time->minute) ||
STOI(O_SEC, &clock_time->second) ||
STOI(O_USEC, &clock_time->usecond)||
STOI(O_GPSFIX, &gpsfix)
) return CVT_FAIL|CVT_BADFMT;
clock_time->usecond *= 1000;
/* Check that the checksum is right */
for (i=OFFS(O_CHKSUM)-1; i >= 0; i--) calc_csum ^= buffer[i];
recv_csum = (hexval(buffer[OFFS(O_CHKSUM)]) << 4) |
hexval(buffer[OFFS(O_CHKSUM)+1]);
if (recv_csum < 0) return CVT_FAIL|CVT_BADTIME;
if (((u_char) recv_csum) != calc_csum) return CVT_FAIL|CVT_BADTIME;
clock_time->utcoffset = 0;
/* What should flags be set to ? */
clock_time->flags = PARSEB_UTC;
/* if the current GPS fix is 9 (unknown), reject */
if (0 > gpsfix || gpsfix > 9) clock_time->flags |= PARSEB_POWERUP;
return CVT_OK;
}
/*
* parse_inp_fnc_t inp_trimtaip
*
* grab data from input stream
*/
static u_long
inp_trimtaip(
parse_t *parseio,
char ch,
timestamp_t *tstamp
)
{
unsigned int rtc;
parseprintf(DD_PARSE, ("inp_trimtaip(0x%lx, 0x%x, ...)\n", (long)parseio, ch));
switch (ch)
{
case '>':
parseprintf(DD_PARSE, ("inp_trimptaip: START seen\n"));
parseio->parse_index = 1;
parseio->parse_data[0] = ch;
parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
return PARSE_INP_SKIP;
case '<':
parseprintf(DD_PARSE, ("inp_trimtaip: END seen\n"));
if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
return parse_end(parseio);
else
return rtc;
default:
return parse_addchar(parseio, ch);
}
}
#else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_TRIMTAIP) */
int clk_trimtaip_bs;
#endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_TRIMTAIP) */
/*
* History:
*
* clk_trimtaip.c,v
* Revision 4.11 2005/04/16 17:32:10 kardel
* update copyright
*
* Revision 4.10 2004/11/14 15:29:41 kardel
* support PPSAPI, upgrade Copyright to Berkeley style
*
* Revision 4.7 1999/11/28 09:13:51 kardel
* RECON_4_0_98F
*
* Revision 4.6 1998/08/16 18:46:27 kardel
* (clock_trimtaip =): changed format name
*
* Revision 4.5 1998/06/14 21:09:38 kardel
* Sun acc cleanup
*
* Revision 4.4 1998/06/13 12:06:57 kardel
* fix SYSV clock name clash
*
* Revision 4.3 1998/06/12 15:22:29 kardel
* fix prototypes
*
* Revision 4.2 1998/06/12 09:13:26 kardel
* conditional compile macros fixed
* printf prototype
*
* Revision 4.1 1998/05/24 09:39:54 kardel
* implementation of the new IO handling model
*
* Revision 4.0 1998/04/10 19:45:31 kardel
* Start 4.0 release version numbering
*
* from V3 1.4 log info deleted 1998/04/11 kardel
*/
|
