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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/sysmacros.h>
#include <sys/salib.h>
#include <sys/promif.h>
#define MINALLOC 8
#define TOPMEM ((caddr_t)0x1000000)
extern caddr_t _end;
extern struct boot_fs_ops promfs_ops;
struct boot_fs_ops *boot_fsw[] = {
&promfs_ops,
};
int boot_nfsw = sizeof (boot_fsw) / sizeof (boot_fsw[0]);
void *
bkmem_alloc(size_t s)
{
static caddr_t next;
caddr_t ret;
if (next == NULL)
next = (caddr_t)roundup((uintptr_t)&_end, MINALLOC);
ret = next;
next += roundup(s, MINALLOC);
if (next >= TOPMEM)
prom_panic("out of memory");
return (ret);
}
/*ARGSUSED*/
void
bkmem_free(void *p, size_t s)
{
}
int
cons_getchar(void)
{
register int c;
while ((c = prom_mayget()) == -1)
;
if (c == '\r') {
prom_putchar(c);
c = '\n';
}
if (c == 0177 || c == '\b') {
prom_putchar('\b');
prom_putchar(' ');
c = '\b';
}
prom_putchar(c);
return (c);
}
char *
cons_gets(char *buf, int n)
{
char *lp;
char *limit;
int c;
lp = buf;
limit = &buf[n - 1];
for (;;) {
c = cons_getchar() & 0177;
switch (c) {
case '\n':
case '\r':
*lp = '\0';
return (buf);
case '\b':
if (lp > buf)
lp--;
continue;
case 'u'&037: /* ^U */
lp = buf;
prom_putchar('\r');
prom_putchar('\n');
continue;
case 0:
continue;
default:
if (lp < limit)
*lp++ = (char)c;
else
prom_putchar('\a'); /* bell */
}
}
}
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