diff options
| author | Jason Wright <jason@cvs.openbsd.org> | 2003-04-02 23:45:30 +0000 |
|---|---|---|
| committer | Jason Wright <jason@cvs.openbsd.org> | 2003-04-02 23:45:30 +0000 |
| commit | 9f460e24b686c92fed4fca1e0fb93274d0930222 (patch) | |
| tree | 29b842f61d1319c137b0bc866cdea358229d8175 /sys/arch/vax/qbus/dzvar.h | |
| parent | 4d2e69a4def08a469de9a7d4508e47e6cca5a1b8 (diff) | |
DZ-11 (or the DZ-11 alike in the VS4000/VLC anyway) only interrupts when
the RX fifo goes from 0 -> 1 characters. If the FIFO is filled (eg. during
autoconf where interrupts are cleared), the dz will never interrupt for
rx again. Solution: drain the fifo on first open. ok hugh
Diffstat (limited to 'sys/arch/vax/qbus/dzvar.h')
| -rw-r--r-- | sys/arch/vax/qbus/dzvar.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/arch/vax/qbus/dzvar.h b/sys/arch/vax/qbus/dzvar.h index 2ece7a31ff3..1c0c490867e 100644 --- a/sys/arch/vax/qbus/dzvar.h +++ b/sys/arch/vax/qbus/dzvar.h @@ -1,4 +1,4 @@ -/* $OpenBSD: dzvar.h,v 1.3 2001/08/25 13:33:37 hugh Exp $ */ +/* $OpenBSD: dzvar.h,v 1.4 2003/04/02 23:45:29 jason Exp $ */ /* $NetBSD: dzvar.h,v 1.8 2000/06/04 02:14:12 matt Exp $ */ /* * Copyright (c) 1996 Ken C. Wellsch. All rights reserved. @@ -58,6 +58,7 @@ struct dz_softc { bus_space_handle_t sc_ioh; int sc_type; /* DZ11 or DZV11? */ int sc_rxint; /* Receive interrupt count XXX */ + int sc_openings; /* # of times we've been opened */ u_char sc_brk; /* Break asserted on some lines */ u_char sc_dsr; /* DSR set bits if no mdm ctrl */ struct dz_linestate { |