diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2006-04-27 19:30:29 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2006-04-27 19:30:29 +0000 |
| commit | a15426ecd54ac6bd38f84c977ce6e8dd09f7d5cf (patch) | |
| tree | d4d7a62f135a86b94cb7e3e5d07c66c18f4712d7 /sys/kern | |
| parent | 17eb13c151eb29a4a105173e61a3c689ddc93077 (diff) | |
create a (very simple) method for timestamping CTS & DCD events on ttys,
using ioctl TIOCSTSTAMP & TIOCGTSTAMP. to be used later for gps monitoring
type things; ok kettenis miod
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/tty.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/sys/kern/tty.c b/sys/kern/tty.c index a4196c475fb..6e64e24c672 100644 --- a/sys/kern/tty.c +++ b/sys/kern/tty.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tty.c,v 1.69 2005/12/21 12:43:49 jsg Exp $ */ +/* $OpenBSD: tty.c,v 1.70 2006/04/27 19:30:28 deraadt Exp $ */ /* $NetBSD: tty.c,v 1.68.4.2 1996/06/06 16:04:52 thorpej Exp $ */ /*- @@ -835,6 +835,11 @@ ttioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, struct proc *p) case TIOCGWINSZ: /* get window size */ *(struct winsize *)data = tp->t_winsize; break; + case TIOCGTSTAMP: + s = spltty(); + *(struct timeval *)data = tp->t_tv; + splx(s); + break; case TIOCGPGRP: /* get pgrp of tty */ if (!isctty(p, tp) && suser(p, 0)) return (ENOTTY); @@ -1006,6 +1011,25 @@ ttioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, struct proc *p) pgsignal(tp->t_pgrp, SIGWINCH, 1); } break; + case TIOCSTSTAMP: { + struct tstamps *ts = (struct tstamps *)data; + + s = spltty(); + CLR(tp->t_flags, TS_TSTAMPDCDSET); + CLR(tp->t_flags, TS_TSTAMPCTSSET); + CLR(tp->t_flags, TS_TSTAMPDCDCLR); + CLR(tp->t_flags, TS_TSTAMPCTSCLR); + if (ISSET(ts->ts_set, TIOCM_CAR)) + SET(tp->t_flags, TS_TSTAMPDCDSET); + if (ISSET(ts->ts_set, TIOCM_CTS)) + SET(tp->t_flags, TS_TSTAMPCTSSET); + if (ISSET(ts->ts_clr, TIOCM_CAR)) + SET(tp->t_flags, TS_TSTAMPDCDCLR); + if (ISSET(ts->ts_clr, TIOCM_CTS)) + SET(tp->t_flags, TS_TSTAMPCTSCLR); + splx(s); + break; + } default: #ifdef COMPAT_OLDTTY return (ttcompat(tp, cmd, data, flag, p)); @@ -2315,3 +2339,19 @@ sysctl_tty(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, } /* NOTREACHED */ } + +void +ttytstamp(struct tty *tp, int octs, int ncts, int odcd, int ndcd) +{ + int doit = 0; + + if (ncts ^ octs) { + doit = (ncts && ISSET(tp->t_flags, TS_TSTAMPCTSSET)) || + (!ncts && ISSET(tp->t_flags, TS_TSTAMPCTSCLR)); + } else if (ndcd ^ odcd) { + doit = (ndcd && ISSET(tp->t_flags, TS_TSTAMPDCDSET)) || + (!ndcd && ISSET(tp->t_flags, TS_TSTAMPDCDCLR)); + } + if (doit) + microtime(&tp->t_tv); +} |