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A missing bit from Peter Dufaults patches, as best I could guess...

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This commit is contained in:
Poul-Henning Kamp 1994-10-20 00:45:36 +00:00
parent 12396a6a16
commit 74fbff447d
3 changed files with 66 additions and 3 deletions
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23
sys/dev/sio/sio.c
View File

@ -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));
@ -2000,6 +2001,26 @@ siocninit(cp)
comconsole = DEV_TO_UNIT(cp->cn_dev);
}
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;

23
sys/i386/isa/sio.c
View File

@ -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));
@ -2000,6 +2001,26 @@ siocninit(cp)
comconsole = DEV_TO_UNIT(cp->cn_dev);
}
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;

23
sys/isa/sio.c
View File

@ -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));
@ -2000,6 +2001,26 @@ siocninit(cp)
comconsole = DEV_TO_UNIT(cp->cn_dev);
}
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;