1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <sys/promif.h>
30#include <sys/promimpl.h>
31#include <sys/bootsvcs.h>
32
33/*ARGSUSED*/
34int
35prom_mayput(char c)
36{
37	prom_putchar(c);
38	return (1);
39}
40
41void
42prom_putchar(char c)
43{
44	static int bhcharpos = 0;
45	promif_owrap_t *ow;
46
47	ow = promif_preout();
48	switch (c) {
49	case '\t':
50		do {
51			BSVC_PUTCHAR(SYSP, ' ');
52		} while (++bhcharpos % 8);
53		break;
54	case '\n':
55	case '\r':
56		bhcharpos = 0;
57		BSVC_PUTCHAR(SYSP, c);
58		break;
59	case '\b':
60		if (bhcharpos)
61			bhcharpos--;
62		BSVC_PUTCHAR(SYSP, c);
63		break;
64	default:
65		bhcharpos++;
66		BSVC_PUTCHAR(SYSP, c);
67		break;
68	}
69	promif_postout(ow);
70}
71
72void
73prom_writestr(const char *s, size_t n)
74{
75	while (n-- != 0)
76		prom_putchar(*s++);
77}
78