1 /* $NetBSD: sysmon_component.c,v 1.3 2016/01/26 23:12:16 pooka Exp $ */
2
3 /*
4 * Copyright (c) 2010 Antti Kantee. All Rights Reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: sysmon_component.c,v 1.3 2016/01/26 23:12:16 pooka Exp $");
30
31 #include <sys/param.h>
32 #include <sys/conf.h>
33 #include <sys/device.h>
34 #include <sys/stat.h>
35
36 #include <dev/sysmon/sysmon_taskq.h>
37 #include <dev/sysmon/sysmonvar.h>
38
39 #include <rump-sys/kern.h>
40 #include <rump-sys/dev.h>
41 #include <rump-sys/vfs.h>
42
RUMP_COMPONENT(RUMP_COMPONENT_DEV)43 RUMP_COMPONENT(RUMP_COMPONENT_DEV)
44 {
45 extern const struct cdevsw sysmon_cdevsw;
46 devmajor_t bmaj, cmaj;
47 int error;
48
49 /*
50 * Temporarily attach the devsw so we can determine our
51 * major device number. We'll detach it immediately, so
52 * normal module initialization can permanently attach.
53 */
54 bmaj = cmaj = -1;
55 if ((error = devsw_attach("sysmon", NULL, &bmaj,
56 &sysmon_cdevsw, &cmaj)) != 0)
57 panic("sysmon devsw attach failed: %d", error);
58 devsw_detach(NULL, &sysmon_cdevsw);
59
60 if ((error = rump_vfs_makeonedevnode(S_IFCHR, "/dev/sysmon",
61 cmaj, SYSMON_MINOR_ENVSYS)) != 0)
62 panic("cannot create /dev/sysmon: %d", error);
63 if ((error = rump_vfs_makeonedevnode(S_IFCHR, "/dev/watchdog",
64 cmaj, SYSMON_MINOR_WDOG)) != 0)
65 panic("cannot create /dev/watchdog: %d", error);
66 if ((error = rump_vfs_makeonedevnode(S_IFCHR, "/dev/power",
67 cmaj, SYSMON_MINOR_POWER)) != 0)
68 panic("cannot create /dev/power: %d", error);
69 }
70