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audio_component.c revision 1.5 
      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 
     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