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/* $NetBSD: prom.c,v 1.3 1997/09/06 14:03:58 drochner Exp $ */
/*
* Mach Operating System
* Copyright (c) 1992 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include "bootstrap.h"
#include "arctypes.h"
#include "arcfuncs.h"
int console;
static void arc_probe(struct console *cp);
static int arc_init(int);
static void arc_putchar(int);
static int arc_getchar(void);
static int arc_poll(void);
struct console arcconsole = {
"arc",
"ARC firmware console",
0,
arc_probe,
arc_init,
arc_putchar,
arc_getchar,
arc_poll,
};
static void
arc_probe(struct console *cp)
{
cp->c_flags |= C_PRESENTIN|C_PRESENTOUT;
}
static int
arc_init(int arg)
{
return 0;
}
static void
arc_putchar(int c)
{
char cbuf = c;
u_int32_t count;
Write(StandardOut, &cbuf, 1, &count);
}
static int saved_char = -1;
int
arc_getchar()
{
char cbuf;
u_int32_t count;
arc_putchar('_');
arc_putchar('\b');
Read(StandardIn, &cbuf, 1, &count);
arc_putchar(' ');
arc_putchar('\b');
if (count == 1)
return cbuf;
else
return -1;
}
int
arc_poll()
{
return GetReadStatus(StandardIn) == ESUCCESS;
}
int
arc_open(dev, len)
char *dev;
int len;
{
return 0;
}
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