diff options
| author | Bruce Evans <bde@FreeBSD.org> | 1995-07-31 21:10:36 +0000 |
|---|---|---|
| committer | Bruce Evans <bde@FreeBSD.org> | 1995-07-31 21:10:36 +0000 |
| commit | 1856afe95515069df5ed9074be3949e90a42ea5e (patch) | |
| tree | 6db20aa6ade9529e04932f1ecd0d5d6cb3241c13 /sys/dev/sio | |
| parent | 9fa18570a23308a712a65c3890d266c056b89430 (diff) | |
| download | src-1856afe95515069df5ed9074be3949e90a42ea5e.tar.gz src-1856afe95515069df5ed9074be3949e90a42ea5e.zip | |
Sleep on a better address to wait for output to drain out of the
hardware. Set the sleep-on flag for the address so there is more
than a small chance that the sleep address is actually used (this
used to work by timing out). Don't bother clearing the sleep-on
flag after a timeout here or elsewhere since leaving it set just
generates a few null calls to wakeup().
Notes
Notes:
svn path=/head/; revision=9825
Diffstat (limited to 'sys/dev/sio')
| -rw-r--r-- | sys/dev/sio/sio.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c index 97f9dd786f7b..098ca51ca08a 100644 --- a/sys/dev/sio/sio.c +++ b/sys/dev/sio/sio.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)com.c 7.5 (Berkeley) 5/16/91 - * $Id: sio.c,v 1.107 1995/07/29 08:33:13 bde Exp $ + * $Id: sio.c,v 1.108 1995/07/31 18:29:51 bde Exp $ */ #include "sio.h" @@ -1688,7 +1688,8 @@ retry: enable_intr(); while ((inb(com->line_status_port) & (LSR_TSRE | LSR_TXRDY)) != (LSR_TSRE | LSR_TXRDY)) { - error = ttysleep(tp, TSA_OLOWAT(tp), TTIPRI | PCATCH, + tp->t_state |= TS_SO_OCOMPLETE; + error = ttysleep(tp, TSA_OCOMPLETE(tp), TTIPRI | PCATCH, "siotx", hz / 100); if ( txtimeout != 0 && (!error || error == EAGAIN) |