1 /*        $NetBSD: audio_component.c,v 1.5 2019/05/08 13:40:19 isaki 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: audio_component.c,v 1.5 2019/05/08 13:40:19 isaki Exp $");
30 
31 #include <sys/param.h>
32 #include <sys/conf.h>
33 #include <sys/device.h>
34 #include <sys/mbuf.h>
35 #include <sys/stat.h>
36 
37 #include <dev/audio/audio_if.h>
38 
39 #include <rump-sys/kern.h>
40 #include <rump-sys/vfs.h>
41 
RUMP_COMPONENT(RUMP_COMPONENT_DEV)42 RUMP_COMPONENT(RUMP_COMPONENT_DEV)
43 {
44         extern const struct cdevsw audio_cdevsw;
45           extern devmajor_t audio_bmajor, audio_cmajor;
46           int error;
47 
48           if ((error = devsw_attach("audio", NULL, &audio_bmajor,
49               &audio_cdevsw, &audio_cmajor)) != 0)
50                     panic("audio devsw attach failed: %d", error);
51           if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/audio", '0',
52               audio_cmajor, AUDIO_DEVICE, 4)) !=0)
53                     panic("cannot create audio device nodes: %d", error);
54           if ((error = rump_vfs_makesymlink("audio0", "/dev/audio")) != 0)
55                     panic("cannot create audio symlink: %d", error);
56           if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/sound", '0',
57               audio_cmajor, SOUND_DEVICE, 4)) !=0)
58                     panic("cannot create sound device nodes: %d", error);
59           if ((error = rump_vfs_makesymlink("sound0", "/dev/sound")) != 0)
60                     panic("cannot create sound symlink: %d", error);
61           if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/audioctl", '0',
62               audio_cmajor, AUDIOCTL_DEVICE, 4)) !=0)
63                     panic("cannot create audioctl device nodes: %d", error);
64           if ((error = rump_vfs_makesymlink("audioctl0", "/dev/audioctl")) != 0)
65                     panic("cannot create audioctl symlink: %d", error);
66           if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/mixer", '0',
67               audio_cmajor, MIXER_DEVICE, 4)) !=0)
68                     panic("cannot create mixer device nodes: %d", error);
69           if ((error = rump_vfs_makesymlink("mixer0", "/dev/mixer")) != 0)
70                     panic("cannot create mixer symlink: %d", error);
71           devsw_detach(NULL, &audio_cdevsw);
72 }
73