1 /* $NetBSD: fdt_userconf.c,v 1.1 2022/03/25 21:23:51 jmcneill Exp $ */
2
3 /*-
4 * Copyright (c) 2022 Jared McNeill <jmcneill@invisible.ca>
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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: fdt_userconf.c,v 1.1 2022/03/25 21:23:51 jmcneill Exp $");
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/userconf.h>
35
36 #include <libfdt.h>
37 #include <dev/fdt/fdtvar.h>
38
39 #define FDT_CHOSEN_PATH "/chosen"
40 #define FDT_CHOSEN_USERCONF_PROP "netbsd,userconf"
41
42 void
userconf_bootinfo(void)43 userconf_bootinfo(void)
44 {
45 const void *fdt = fdtbus_get_data();
46 const char *cmd;
47 int chosen, index;
48
49 if (fdt == NULL) {
50 return;
51 }
52
53 chosen = fdt_path_offset(fdt, FDT_CHOSEN_PATH);
54 if (chosen < 0) {
55 return;
56 }
57
58 index = 0;
59 do {
60 cmd = fdt_stringlist_get(fdt, chosen, FDT_CHOSEN_USERCONF_PROP,
61 index++, NULL);
62 if (cmd != NULL) {
63 aprint_debug("Processing userconf command: %s\n", cmd);
64 userconf_parse(__UNCONST(cmd));
65 }
66 } while (cmd != NULL);
67 }
68