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/*
28 * "PROM" interface
29 */
30
31#include <sys/types.h>
32#include <sys/promif.h>
33#include <sys/salib.h>
34
35#include <kmdb/kmdb_promif_impl.h>
36#include <kmdb/kmdb_kdi.h>
37#include <kmdb/kmdb_dpi.h>
38#include <mdb/mdb_err.h>
39#include <mdb/mdb_debug.h>
40#include <mdb/mdb_string.h>
41#include <mdb/mdb.h>
42
43struct boot_syscalls *kmdb_sysp;
44
45ssize_t
46kmdb_prom_obp_writer(caddr_t buf, size_t len)
47{
48	int i;
49
50	for (i = 0; i < len; i++)
51		prom_putchar(*buf++);
52
53	return (len);
54}
55
56/*ARGSUSED*/
57ihandle_t
58kmdb_prom_get_handle(char *name)
59{
60	/* no handles here */
61	return (0);
62}
63
64char *
65kmdb_prom_get_ddi_prop(kmdb_auxv_t *kav, char *propname)
66{
67	int i;
68
69	if (kav->kav_pcache != NULL) {
70		for (i = 0; i < kav->kav_nprops; i++) {
71			kmdb_auxv_nv_t *nv = &kav->kav_pcache[i];
72			if (strcmp(nv->kanv_name, propname) == 0)
73				return (nv->kanv_val);
74		}
75	}
76
77	return (NULL);
78}
79
80/*ARGSUSED*/
81void
82kmdb_prom_free_ddi_prop(char *val)
83{
84}
85
86/*
87 * This function is actually about checking if we are using
88 * local console versus serial console. Serial console can be named
89 * "ttyX" where X is [a-d], or "usb-serial".
90 */
91int
92kmdb_prom_stdout_is_framebuffer(kmdb_auxv_t *kav)
93{
94	char *dev;
95
96	/*
97	 * The property "output-device" value is set in property cache, and
98	 * is based on either "output-device" or "console" properties from
99	 * the actual system. We can't use the official promif version, as we
100	 * need to ensure that property lookups come from our property cache.
101	 */
102
103	if ((dev = kmdb_prom_get_ddi_prop(kav, "output-device")) == NULL)
104		return (0);
105
106	if (strncmp(dev, "tty", 3) == 0)
107		return (0);
108	if (strcmp(dev, "usb-serial") == 0)
109		return (0);
110
111	/* Anything else is classified as local console. */
112	return (1);
113}
114
115void
116kmdb_prom_get_tem_size(kmdb_auxv_t *kav, ushort_t *rows, ushort_t *cols)
117{
118	char *val;
119	unsigned long u;
120
121	val = kmdb_prom_get_ddi_prop(kav, "screen-#rows");
122	if (val != NULL) {
123		u = strtoul(val, NULL, 10);
124		*rows = (ushort_t)u;
125	}
126	val = kmdb_prom_get_ddi_prop(kav, "screen-#cols");
127	if (val != NULL) {
128		u = strtoul(val, NULL, 10);
129		*cols = (ushort_t)u;
130	}
131}
132