sys/kern/kern_tc.c

1506 abi_aware(struct pps_state *pps, int vers)
1509 	return ((pps->kcmode & KCMODE_ABIFLAG) && pps->driver_abi >= vers);
1513 pps_fetch(struct pps_fetch_args *fapi, struct pps_state *pps)
1537 		aseq = pps->ppsinfo.assert_sequence;
1538 		cseq = pps->ppsinfo.clear_sequence;
1539 		while (aseq == pps->ppsinfo.assert_sequence &&
1540 		    cseq == pps->ppsinfo.clear_sequence) {
1541 			if (abi_aware(pps, 1) && pps->driver_mtx != NULL) {
1542 				if (pps->flags & PPSFLAG_MTX_SPIN) {
1543 					err = msleep_spin(pps, pps->driver_mtx,
1546 					err = msleep(pps, pps->driver_mtx, PCATCH,
1550 				err = tsleep(pps, PCATCH, "ppsfch", timo);
1564 	pps->ppsinfo.current_mode = pps->ppsparam.mode;
1565 	fapi->pps_info_buf = pps->ppsinfo;
1571 pps_ioctl(u_long cmd, caddr_t data, struct pps_state *pps)
1582 	KASSERT(pps != NULL, ("NULL pps pointer in pps_ioctl"));
1590 		if (app->mode & ~pps->ppscap)
1597 		pps->ppsparam = *app;
1601 		*app = pps->ppsparam;
1605 		*(int*)data = pps->ppscap;
1609 		return (pps_fetch(fapi, pps));
1618 		pps->ppsinfo_ffc.current_mode = pps->ppsparam.mode;
1619 		fapi_ffc->pps_info_buf_ffc = pps->ppsinfo_ffc;
1621 		switch (pps->ppsparam.mode & PPS_TSCLK_MASK) {
1624 			    pps->ppsinfo.assert_timestamp;
1626 			    pps->ppsinfo.clear_timestamp;
1643 		if (kapi->edge & ~pps->ppscap)
1645 		pps->kcmode = (kapi->edge & KCMODE_EDGEMASK) |
1646 		    (pps->kcmode & KCMODE_ABIFLAG);
1657 pps_init(struct pps_state *pps)
1659 	pps->ppscap |= PPS_TSFMT_TSPEC | PPS_CANWAIT;
1660 	if (pps->ppscap & PPS_CAPTUREASSERT)
1661 		pps->ppscap |= PPS_OFFSETASSERT;
1662 	if (pps->ppscap & PPS_CAPTURECLEAR)
1663 		pps->ppscap |= PPS_OFFSETCLEAR;
1665 	pps->ppscap |= PPS_TSCLK_MASK;
1667 	pps->kcmode &= ~KCMODE_ABIFLAG;
1671 pps_init_abi(struct pps_state *pps)
1674 	pps_init(pps);
1675 	if (pps->driver_abi > 0) {
1676 		pps->kcmode |= KCMODE_ABIFLAG;
1677 		pps->kernel_abi = PPS_ABI_VERSION;
1682 pps_capture(struct pps_state *pps)
1686 	KASSERT(pps != NULL, ("NULL pps pointer in pps_capture"));
1688 	pps->capgen = atomic_load_acq_int(&th->th_generation);
1689 	pps->capth = th;
1691 	pps->capffth = fftimehands;
1693 	pps->capcount = th->th_counter->tc_get_timecount(th->th_counter);
1695 	if (pps->capgen != th->th_generation)
1696 		pps->capgen = 0;
1700 pps_event(struct pps_state *pps, int event)
1716 	KASSERT(pps != NULL, ("NULL pps pointer in pps_event"));
1718 	if ((event & pps->ppsparam.mode) == 0)
1721 	if (pps->capgen == 0 || pps->capgen !=
1722 	    atomic_load_acq_int(&pps->capth->th_generation))
1727 		tsp = &pps->ppsinfo.assert_timestamp;
1728 		osp = &pps->ppsparam.assert_offset;
1729 		foff = pps->ppsparam.mode & PPS_OFFSETASSERT;
1731 		fhard = pps->kcmode & PPS_CAPTUREASSERT;
1733 		pcount = &pps->ppscount[0];
1734 		pseq = &pps->ppsinfo.assert_sequence;
1736 		ffcount = &pps->ppsinfo_ffc.assert_ffcount;
1737 		tsp_ffc = &pps->ppsinfo_ffc.assert_timestamp;
1738 		pseq_ffc = &pps->ppsinfo_ffc.assert_sequence;
1741 		tsp = &pps->ppsinfo.clear_timestamp;
1742 		osp = &pps->ppsparam.clear_offset;
1743 		foff = pps->ppsparam.mode & PPS_OFFSETCLEAR;
1745 		fhard = pps->kcmode & PPS_CAPTURECLEAR;
1747 		pcount = &pps->ppscount[1];
1748 		pseq = &pps->ppsinfo.clear_sequence;
1750 		ffcount = &pps->ppsinfo_ffc.clear_ffcount;
1751 		tsp_ffc = &pps->ppsinfo_ffc.clear_timestamp;
1752 		pseq_ffc = &pps->ppsinfo_ffc.clear_sequence;
1760 	if (pps->ppstc != pps->capth->th_counter) {
1761 		pps->ppstc = pps->capth->th_counter;
1762 		*pcount = pps->capcount;
1763 		pps->ppscount[2] = pps->capcount;
1768 	tcount = pps->capcount - pps->capth->th_offset_count;
1769 	tcount &= pps->capth->th_counter->tc_counter_mask;
1770 	bt = pps->capth->th_offset;
1771 	bintime_addx(&bt, pps->capth->th_scale * tcount);
1777 	if (pps->capgen != pps->capth->th_generation)
1780 	*pcount = pps->capcount;
1793 	*ffcount = pps->capffth->tick_ffcount + tcount;
1794 	bt = pps->capffth->tick_time;
1795 	ffclock_convert_delta(tcount, pps->capffth->cest.period, &bt);
1796 	bintime_add(&bt, &pps->capffth->tick_time);
1811 		tcount = pps->capcount - pps->ppscount[2];
1812 		pps->ppscount[2] = pps->capcount;
1813 		tcount &= pps->capth->th_counter->tc_counter_mask;
1815 		scale /= pps->capth->th_counter->tc_frequency;
1826 	wakeup(pps);