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 #include <sys/promif.h>
28 #include <sys/promimpl.h>
29 #include <sys/bootsvcs.h>
30
31 /*ARGSUSED*/
32 int
prom_mayput(char c)33 prom_mayput(char c)
34 {
35 prom_putchar(c);
36 return (1);
37 }
38
39 void
prom_putchar(char c)40 prom_putchar(char c)
41 {
42 static int bhcharpos = 0;
43 promif_owrap_t *ow;
44
45 ow = promif_preout();
46 switch (c) {
47 case '\t':
48 do {
49 BSVC_PUTCHAR(SYSP, ' ');
50 } while (++bhcharpos % 8);
51 break;
52 case '\n':
53 case '\r':
54 bhcharpos = 0;
55 BSVC_PUTCHAR(SYSP, c);
56 break;
57 case '\b':
58 if (bhcharpos)
59 bhcharpos--;
60 BSVC_PUTCHAR(SYSP, c);
61 break;
62 default:
63 bhcharpos++;
64 BSVC_PUTCHAR(SYSP, c);
65 break;
66 }
67 promif_postout(ow);
68 }
69
70 void
prom_writestr(const char * s,size_t n)71 prom_writestr(const char *s, size_t n)
72 {
73 while (n-- != 0)
74 prom_putchar(*s++);
75 }
76