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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2006 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 /*
30 * "PROM" interface
31 */
32
33 #include <sys/types.h>
34 #include <sys/promif.h>
35
36 #include <kmdb/kmdb_promif_impl.h>
37 #include <kmdb/kmdb_kdi.h>
38 #include <kmdb/kmdb_dpi.h>
39 #include <mdb/mdb_err.h>
40 #include <mdb/mdb_debug.h>
41 #include <mdb/mdb_string.h>
42 #include <mdb/mdb.h>
43
44 struct boot_syscalls *kmdb_sysp;
45
46 ssize_t
kmdb_prom_obp_writer(caddr_t buf,size_t len)47 kmdb_prom_obp_writer(caddr_t buf, size_t len)
48 {
49 int i;
50
51 for (i = 0; i < len; i++)
52 prom_putchar(*buf++);
53
54 return (len);
55 }
56
57 /*ARGSUSED*/
58 ihandle_t
kmdb_prom_get_handle(char * name)59 kmdb_prom_get_handle(char *name)
60 {
61 /* no handles here */
62 return (0);
63 }
64
65 char *
kmdb_prom_get_ddi_prop(kmdb_auxv_t * kav,char * propname)66 kmdb_prom_get_ddi_prop(kmdb_auxv_t *kav, char *propname)
67 {
68 int i;
69
70 if (kav->kav_pcache != NULL) {
71 for (i = 0; i < kav->kav_nprops; i++) {
72 kmdb_auxv_nv_t *nv = &kav->kav_pcache[i];
73 if (strcmp(nv->kanv_name, propname) == 0)
74 return (nv->kanv_val);
75 }
76 }
77
78 return (NULL);
79 }
80
81 /*ARGSUSED*/
82 void
kmdb_prom_free_ddi_prop(char * val)83 kmdb_prom_free_ddi_prop(char *val)
84 {
85 }
86
87 int
kmdb_prom_stdout_is_framebuffer(kmdb_auxv_t * kav)88 kmdb_prom_stdout_is_framebuffer(kmdb_auxv_t *kav)
89 {
90 char *dev;
91
92 /*
93 * We can't use the official promif version, as we need to ensure that
94 * property lookups come from our property cache.
95 */
96
97 if ((dev = kmdb_prom_get_ddi_prop(kav, "output-device")) == NULL)
98 return (0);
99
100 return (strcmp(dev, "screen") == 0);
101 }
102