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*/
34 int
prom_mayput(char c)35 prom_mayput(char c)
36 {
37 prom_putchar(c);
38 return (1);
39 }
40
41 void
prom_putchar(char c)42 prom_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
72 void
prom_writestr(const char * s,size_t n)73 prom_writestr(const char *s, size_t n)
74 {
75 while (n-- != 0)
76 prom_putchar(*s++);
77 }
78