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Annotation of embedaddon/ntp/ports/winnt/ntpd/refclock_trimbledc.h, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * refclock_trimbledc - clock driver for the Trimble Data Collector compatible
                      3:  * GPS receivers (4000, 4700, 4800, 7400, ...)
                      4:  *
                      5:  * Greg Brackley (greg@trimble.co.nz)
                      6:  */
                      7: 
                      8: #ifndef _REFCLOCK_TRIMBLEDC_H
                      9: #define _REFCLOCK_TRIMBLEDC_H
                     10: 
                     11: #ifdef HAVE_CONFIG_H
                     12: #include "config.h"
                     13: #endif
                     14: 
                     15: #if defined HAVE_SYS_MODEM_H
                     16: #include <sys/modem.h>
                     17: #define TIOCMSET MCSETA
                     18: #define TIOCMGET MCGETA
                     19: #define TIOCM_RTS MRTS
                     20: #endif
                     21: 
                     22: #ifdef HAVE_TERMIOS_H
                     23: #include <termios.h>
                     24: #endif
                     25: 
                     26: #ifdef HAVE_SYS_IOCTL_H
                     27: #include <sys/ioctl.h>
                     28: #endif
                     29: 
                     30: #include "ntpd.h"
                     31: #include "ntp_io.h"
                     32: #include "ntp_control.h"
                     33: #include "ntp_refclock.h"
                     34: #include "ntp_unixtime.h"
                     35: #include "ntp_stdlib.h"
                     36: 
                     37: /*
                     38:  * GPS Definitions
                     39:  */
                     40: #define        DESCRIPTION     "Trimble Data Collector GPS" /* Long name */
                     41: #define        PRECISION       (-20)   /* precision assumed (about 1 us) */
                     42: #define        REFID           "GPS\0" /* reference ID */
                     43: #define NSAMPLES               1
                     44: #define NSKEEP                 1
                     45: #define TRIMBLEDC_MINPOLL      4
                     46: #define TRIMBLEDC_MAXPOLL      4
                     47: 
                     48: /*
                     49:  * I/O Definitions
                     50:  */
                     51: #if !defined SYS_WINNT
                     52: #define        DEVICE          "/dev/trimbledc%d"      /* device name and unit */
                     53: #else
                     54: #define        DEVICE          "\\\\.\\COM%d"          /* device name and unit */
                     55: #endif
                     56: #define        SPEED232        B9600                   /* uart speed (9600 baud) */
                     57: 
                     58: #define POLL_AVG       10  /* number of samples to average code delay */
                     59: #define DC_IO_BUFSIZE  512 /* IO buffer */
                     60: #define DC_MAXLEN      260  /* maximum length TSIP packet */
                     61: 
                     62: /* 
                     63:  * Leap-Insert and Leap-Delete are encoded as follows:
                     64:  *     PALISADE_UTC_TIME set   and PALISADE_LEAP_PENDING set: INSERT leap
                     65:  *     PALISADE_UTC_TIME clear and PALISADE_LEAP_PENDING set: DELETE leap
                     66:  */
                     67: 
                     68: #define PALISADE_LEAP_WARNING    0x04 /* GPS Leap Warning (see ICD-200) */
                     69: #define PALISADE_LEAP_PENDING    0x02 /* Leap Pending (24 hours) */
                     70: #define PALISADE_UTC_TIME        0x01 /* UTC time available */
                     71: 
                     72: #define mb(_X_) (up->rpt_buf[(_X_ + 1)]) /* shortcut for buffer access */
                     73: 
                     74: /* Conversion Definitions */
                     75: #define GPS_PI                 (3.1415926535898)
                     76: #define        R2D             (180.0/GPS_PI)
                     77: 
                     78: typedef enum TrimbleDcParseState {
                     79: 
                     80:   TrimbleParseStateAck,
                     81:   TrimbleParseStateNak,
                     82:   TrimbleParseStateData,
                     83: 
                     84: } TrimbleDcParseState;
                     85: 
                     86: struct trimbledc_unit {
                     87:        int             unit;           /* NTP refclock unit number */
                     88:        int             polled;         /* flag to detect noreplies */
                     89:        char            leap_status;    /* leap second flag */
                     90:        TrimbleDcParseState             rpt_status;     
                     91:        short           rpt_cnt;        
                     92:        char            rpt_buf[DC_MAXLEN];     
                     93:        char            io_buf[DC_IO_BUFSIZE];
                     94:        short           io_ptr[2];      /* 0 = head, 1 = tail */
                     95: };
                     96: 
                     97: #endif /* _REFCLOCK_TRIMBLEDC_H */