diff options
| author | phk <phk@FreeBSD.org> | 1994-10-20 00:45:36 +0000 |
|---|---|---|
| committer | phk <phk@FreeBSD.org> | 1994-10-20 00:45:36 +0000 |
| commit | ccc81f66b716a6456d3e5954073f4947cd60e923 (patch) | |
| tree | 57d4932b1dbf6882ab74f09a1b3b8e359ac9c3de /sys/dev | |
| parent | ca4c47b8ecd38e527c593755f6ab41785de48697 (diff) | |
| download | FreeBSD-src-ccc81f66b716a6456d3e5954073f4947cd60e923.zip FreeBSD-src-ccc81f66b716a6456d3e5954073f4947cd60e923.tar.gz | |
A missing bit from Peter Dufaults patches, as best I could guess...
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/sio/sio.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c index 1f359c2..54133ab 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 1.55 1994/10/15 18:05:25 ache Exp $ + * $Id: sio.c,v 1.56 1994/10/19 21:38:19 bde Exp $ */ #include "sio.h" @@ -263,6 +263,7 @@ int sioselect __P((dev_t dev, int rw, struct proc *p)); /* Console device entry points. */ int siocngetc __P((dev_t dev)); +int siocncheckc __P((dev_t dev)); struct consdev; void siocninit __P((struct consdev *cp)); void siocnprobe __P((struct consdev *cp)); @@ -2001,6 +2002,26 @@ siocninit(cp) } int +siocncheckc(dev) + dev_t dev; +{ + int c=0; + Port_t iobase; + int s; + struct siocnstate sp; + + iobase = siocniobase; + s = spltty(); + siocnopen(&sp); + if (inb(iobase + com_lsr) & LSR_RXRDY) + c = inb(iobase + com_data); + siocnclose(&sp); + splx(s); + return (c); +} + + +int siocngetc(dev) dev_t dev; { |
