1 /* $NetBSD: db_autoconf.c,v 1.3 2022/03/28 12:38:58 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 2016 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: db_autoconf.c,v 1.3 2022/03/28 12:38:58 riastradh Exp $");
31
32 #ifndef _KERNEL
33 #include <stdbool.h>
34 #endif
35
36 #include <sys/param.h>
37 #include <sys/device.h>
38 #include <sys/device_impl.h>
39
40 #include <ddb/ddb.h>
41
42 static const char *classnames[] = {
43 "dull", "cpu", "disk", "ifnet", "tape", "tty",
44 "audiodev", "displaydev", "bus", "virtual"
45 };
46
47 struct device *
db_device_first(void)48 db_device_first(void)
49 {
50
51 return db_read_ptr("alldevs");
52 }
53
54 struct device *
db_device_next(struct device * dv)55 db_device_next(struct device *dv)
56 {
57
58 db_read_bytes((db_addr_t)&dv->dv_list.tqe_next, sizeof(dv),
59 (char *)&dv);
60 return dv;
61 }
62
63 void
db_show_all_devices(db_expr_t addr,bool haddr,db_expr_t count,const char * modif)64 db_show_all_devices(db_expr_t addr, bool haddr, db_expr_t count,
65 const char *modif)
66 {
67 struct device buf;
68 struct device *dv;
69 const char *cl;
70
71 db_printf("%-16s %10s %4s %18s %18s\n",
72 "NAME","CLASS","UNIT","DEVICE_T","PRIVATE");
73
74 for (dv = db_device_first(); dv != NULL; dv = db_device_next(dv)) {
75 db_read_bytes((db_addr_t)dv, sizeof(buf), (char *)&buf);
76
77 unsigned i = buf.dv_class;
78
79 if (i >= __arraycount(classnames))
80 cl = "????";
81 else
82 cl = classnames[i];
83
84 db_printf("%-16.16s", buf.dv_xname);
85 db_printf(" %10s", cl);
86 db_printf(" %4u", buf.dv_unit);
87 db_printf(" %18" PRIxPTR, (uintptr_t)dv);
88 db_printf(" %18" PRIxPTR, (uintptr_t)buf.dv_private);
89 db_printf("\n");
90 }
91 }
92