/*
* refclock_params - set ppsapi parameters
*
* This routine is called to set the PPSAPI parameters after the fudge
* command.
*/
int
refclock_params(
int mode, /* mode bits */
struct refclock_atom *ap /* atom structure pointer */
)
{
memset(&ap->pps_params, 0, sizeof(pps_params_t));
ap->pps_params.api_version = PPS_API_VERS_1;
/*
* Solaris serial ports provide PPS pulse capture only on the
* assert edge. FreeBSD serial ports provide capture on the
* clear edge, while FreeBSD parallel ports provide capture
* on the assert edge. Your mileage may vary.
*/
if (mode & CLK_FLAG2)
ap->pps_params.mode = PPS_TSFMT_TSPEC | PPS_CAPTURECLEAR;
else
ap->pps_params.mode = PPS_TSFMT_TSPEC | PPS_CAPTUREASSERT;
if (time_pps_setparams(ap->handle, &ap->pps_params) < 0) {
msyslog(LOG_ERR,
"refclock_params: time_pps_setparams: %m");
return (0);
}
/*
* If flag3 is lit, select the kernel PPS.
*/
if (mode & CLK_FLAG3) {
if (time_pps_kcbind(ap->handle, PPS_KC_HARDPPS,
ap->pps_params.mode & ~PPS_TSFMT_TSPEC,
PPS_TSFMT_TSPEC) < 0) {
if (errno != EOPNOTSUPP) {
msyslog(LOG_ERR,
"refclock_params: time_pps_kcbind: %m");
return (0);
}
}
pps_enable = 1;
}
return (1);
}
static inline int unbind(pps_handle_t handle)
{
return time_pps_kcbind(handle, PPS_KC_HARDPPS, 0, PPS_TSFMT_TSPEC);
}
static inline int bind(pps_handle_t handle, int edge)
{
return time_pps_kcbind(handle, PPS_KC_HARDPPS, edge, PPS_TSFMT_TSPEC);
}