diff options
Diffstat (limited to 'usr.sbin/xntpd/parse/clk_schmid.c')
| -rw-r--r-- | usr.sbin/xntpd/parse/clk_schmid.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/usr.sbin/xntpd/parse/clk_schmid.c b/usr.sbin/xntpd/parse/clk_schmid.c new file mode 100644 index 000000000000..12b06fdcc304 --- /dev/null +++ b/usr.sbin/xntpd/parse/clk_schmid.c @@ -0,0 +1,195 @@ +#if defined(REFCLOCK) && (defined(PARSE) || defined(PARSEPPS)) && defined(CLOCK_SCHMID) +/* + * /src/NTP/REPOSITORY/v3/parse/clk_schmid.c,v 3.8 1993/11/01 20:00:18 kardel Exp + * + * clk_schmid.c,v 3.8 1993/11/01 20:00:18 kardel Exp + * + * Schmid clock support + * + * Copyright (c) 1992,1993 + * Frank Kardel Friedrich-Alexander Universitaet Erlangen-Nuernberg + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + */ + +#include "sys/types.h" +#include "sys/time.h" +#include "sys/errno.h" +#include "ntp_fp.h" +#include "ntp_unixtime.h" +#include "ntp_calendar.h" + +#include "parse.h" + +/* + * Description courtesy of Adam W. Feigin et. al (Swisstime iis.ethz.ch) + * + * The command to Schmid's DCF77 clock is a single byte; each bit + * allows the user to select some part of the time string, as follows (the + * output for the lsb is sent first). + * + * Bit 0: time in MEZ, 4 bytes *binary, not BCD*; hh.mm.ss.tenths + * Bit 1: date 3 bytes *binary, not BCD: dd.mm.yy + * Bit 2: week day, 1 byte (unused here) + * Bit 3: time zone, 1 byte, 0=MET, 1=MEST. (unused here) + * Bit 4: clock status, 1 byte, 0=time invalid, + * 1=time from crystal backup, + * 3=time from DCF77 + * Bit 5: transmitter status, 1 byte, + * bit 0: backup antenna + * bit 1: time zone change within 1h + * bit 3,2: TZ 01=MEST, 10=MET + * bit 4: leap second will be + * added within one hour + * bits 5-7: Zero + * Bit 6: time in backup mode, units of 5 minutes (unused here) + * + */ +#define WS_TIME 0x01 +#define WS_SIGNAL 0x02 + +#define WS_ALTERNATE 0x01 +#define WS_ANNOUNCE 0x02 +#define WS_TZ 0x0c +#define WS_MET 0x08 +#define WS_MEST 0x04 +#define WS_LEAP 0x10 + +static unsigned LONG cvt_schmid(); + +clockformat_t clock_schmid = +{ + cvt_schmid, /* Schmid conversion */ + syn_simple, /* easy time stamps */ + (unsigned LONG (*)())0, /* not direct PPS monitoring */ + (unsigned LONG (*)())0, /* no time code synthesizer monitoring */ + (void *)0, /* conversion configuration */ + "Schmid", /* Schmid receiver */ + 12, /* binary data buffer */ + F_END|SYNC_START, /* END packet delimiter / synchronisation */ + { 0, 0}, + '\0', + (unsigned char)'\375', + '\0' +}; + + +static unsigned LONG +cvt_schmid(buffer, size, format, clock) + register char *buffer; + register int size; + register struct format *format; + register clocktime_t *clock; +{ + if ((size != 11) || (buffer[10] != '\375')) + { + return CVT_NONE; + } + else + { + if (buffer[0] > 23 || buffer[1] > 59 || buffer[2] > 59 || buffer[3] > 9 /* Time */ + || buffer[0] < 0 || buffer[1] < 0 || buffer[2] < 0 || buffer[3] < 0) + { + return CVT_FAIL|CVT_BADTIME; + } + else + if (buffer[4] < 1 || buffer[4] > 31 || buffer[5] < 1 || buffer[5] > 12 + || buffer[6] > 99) + { + return CVT_FAIL|CVT_BADDATE; + } + else + { + clock->hour = buffer[0]; + clock->minute = buffer[1]; + clock->second = buffer[2]; + clock->usecond = buffer[3] * 100000; + clock->day = buffer[4]; + clock->month = buffer[5]; + clock->year = buffer[6]; + + clock->flags = 0; + + switch (buffer[8] & WS_TZ) + { + case WS_MET: + clock->utcoffset = -1*60*60; + break; + + case WS_MEST: + clock->utcoffset = -2*60*60; + clock->flags |= PARSEB_DST; + break; + + default: + return CVT_FAIL|CVT_BADFMT; + } + + if (!(buffer[7] & WS_TIME)) + { + clock->flags |= PARSEB_POWERUP; + } + + if (!(buffer[7] & WS_SIGNAL)) + { + clock->flags |= PARSEB_NOSYNC; + } + + if (buffer[7] & WS_SIGNAL) + { + if (buffer[8] & WS_ALTERNATE) + { + clock->flags |= PARSEB_ALTERNATE; + } + + if (buffer[8] & WS_ANNOUNCE) + { + clock->flags |= PARSEB_ANNOUNCE; + } + + if (buffer[8] & WS_LEAP) + { + clock->flags |= PARSEB_LEAP; + } + } + + clock->flags |= PARSEB_S_LEAP|PARSEB_S_ANTENNA; + + return CVT_OK; + } + } +} +#endif /* defined(PARSE) && defined(CLOCK_SCHMID) */ + +/* + * History: + * + * clk_schmid.c,v + * Revision 3.8 1993/11/01 20:00:18 kardel + * parse Solaris support (initial version) + * + * Revision 3.7 1993/10/30 09:44:43 kardel + * conditional compilation flag cleanup + * + * Revision 3.6 1993/10/09 15:01:32 kardel + * file structure unified + * + * Revision 3.5 1993/10/03 19:10:47 kardel + * restructured I/O handling + * + * Revision 3.4 1993/09/27 21:08:09 kardel + * utcoffset now in seconds + * + * Revision 3.3 1993/09/26 23:40:27 kardel + * new parse driver logic + * + * Revision 3.2 1993/07/09 11:37:19 kardel + * Initial restructured version + GPS support + * + * Revision 3.1 1993/07/06 10:00:22 kardel + * DCF77 driver goes generic... + * + */ |