40 static MALLOC_DEFINE(M_MIXER, "mixer", "mixer");
45     "control channel pcm/rec volume, bypassing real mixer device");
70 	 * mixer's controls.  A change in value indicates that persistent
71 	 * mixer applications should update their displays.
105 	.d_name =	"mixer",
331 mixer_get(struct snd_mixer *mixer, int dev)  in mixer_get()  argument
333 	if ((dev < SOUND_MIXER_NRDEVICES) && (mixer->devs & (1 << dev))) {  in mixer_get()
334 		if (mixer->mutedevs & (1 << dev))  in mixer_get()
335 			return (mixer->level_muted[dev]);  in mixer_get()
337 			return (mixer->level[dev]);  in mixer_get()
344 mix_setmutedevs(struct snd_mixer *mixer, u_int32_t mutedevs)  in mix_setmutedevs()  argument
349 	mutedevs &= mixer->devs;  in mix_setmutedevs()
350 	delta = (mixer->mutedevs ^ mutedevs) & mixer->devs;  in mix_setmutedevs()
351 	mixer->mutedevs = mutedevs;  in mix_setmutedevs()
357 			mixer->level_muted[i] = mixer->level[i];  in mix_setmutedevs()
358 			mixer_set(mixer, i, 0, 0);  in mix_setmutedevs()
360 			mixer_set(mixer, i, 0, mixer->level_muted[i]);  in mix_setmutedevs()
366 mixer_setrecsrc(struct snd_mixer *mixer, u_int32_t src)  in mixer_setrecsrc()  argument
372 	d = device_get_softc(mixer->dev);  in mixer_setrecsrc()
375 	if (!(d->flags & SD_F_MPSAFE) && mtx_owned(mixer->lock) != 0)  in mixer_setrecsrc()
379 	src &= mixer->recdevs;  in mixer_setrecsrc()
381 		src = mixer->recdevs & SOUND_MASK_MIC;  in mixer_setrecsrc()
383 		src = mixer->recdevs & SOUND_MASK_MONITOR;  in mixer_setrecsrc()
385 		src = mixer->recdevs & SOUND_MASK_LINE;  in mixer_setrecsrc()
386 	if (src == 0 && mixer->recdevs != 0)  in mixer_setrecsrc()
387 		src = (1 << (ffs(mixer->recdevs) - 1));  in mixer_setrecsrc()
389 	MIXER_SET_UNLOCK(mixer, dropmtx);  in mixer_setrecsrc()
390 	recsrc = MIXER_SETRECSRC(mixer, src);  in mixer_setrecsrc()
391 	MIXER_SET_LOCK(mixer, dropmtx);  in mixer_setrecsrc()
393 	mixer->recsrc = recsrc;  in mixer_setrecsrc()
399 mixer_getrecsrc(struct snd_mixer *mixer)  in mixer_getrecsrc()  argument
401 	return mixer->recsrc;  in mixer_getrecsrc()
416  * @param m	mixer context container thing
451  * @param m	mixer context container thing
508  * used by the rest of the mixer code.
518  * @param m	mixer device context container thing
654 	    ("invalid mixer type=%d", type));  in mixer_obj_create()
657 	snprintf(m->name, sizeof(m->name), "%s:mixer",  in mixer_obj_create()
664 	    "primary pcm mixer" : "secondary pcm mixer");  in mixer_obj_create()
690 	    ("%s(): illegal mixer type=%d", __func__, m->type));  in mixer_delete()
692 	/* mixer uninit can sleep --hps */  in mixer_delete()
754 	    "mixer%d", unit);  in mixer_init()
763 				device_printf(dev, "Mixer \"%s\" -> \"%s\":",  in mixer_init()
768 				device_printf(dev, "Mixer \"%s\":",  in mixer_init()
779 			device_printf(dev, "Soft PCM mixer ENABLED\n");  in mixer_init()
803 	    ("%s(): illegal mixer type=%d", __func__, m->type));  in mixer_uninit()
817 	/* mixer uninit can sleep --hps */  in mixer_uninit()
1135 	 * pcm or rec volume is by doing mixer ioctl  in mixer_ioctl_channel()
1137 	 * on its open fd, rather than cracky mixer bypassing here.  in mixer_ioctl_channel()
1256 	 * Certain ioctls may be made on any type of device (audio, mixer,  in mixer_ioctl_cmd()
1364 	if (strcmp(name, "mixer") == 0) {  in mixer_clone()
1401 	snprintf(mi->id, sizeof(mi->id), "mixer%d (n/a)", unit);  in mixer_oss_mixerinfo_unavail()
1402 	snprintf(mi->name, sizeof(mi->name), "pcm%d:mixer (unavailable)", unit);  in mixer_oss_mixerinfo_unavail()
1410  * This function searches for a mixer based on the numeric ID stored
1412  * current mixer handling the request is provided.  Note, however, that
1413  * this ioctl may be made with any sound device (audio, mixer, midi).
1415  * @note Caller must not hold any PCM device, channel, or mixer locks.
1434 	 * If probing the device handling the ioctl, make sure it's a mixer  in mixer_oss_mixerinfo()
1435 	 * device.  (This ioctl is valid on audio, mixer, and midi devices.)  in mixer_oss_mixerinfo()
1445 	 * begin by iterating over PCM devices and search for our mixer.  in mixer_oss_mixerinfo()
1483 		 * - a specific mixer device has been locked, so be  in mixer_oss_mixerinfo()
1488 		snprintf(mi->id, sizeof(mi->id), "mixer%d", i);  in mixer_oss_mixerinfo()
1494 		 * a pcm and mixer devices, so this is hardcoded to 0.  in mixer_oss_mixerinfo()
1501 		 *       string that identifies the mixer better than  in mixer_oss_mixerinfo()
1527 		 * Mixer extensions currently aren't supported, so  in mixer_oss_mixerinfo()
1534 		 * @note The priority field is for mixer applets to  in mixer_oss_mixerinfo()
1535 		 * determine which mixer should be the default, with 0  in mixer_oss_mixerinfo()
1541 		 * default mixer. Other devices use values 1 to 9  in mixer_oss_mixerinfo()
1546 		snprintf(mi->devnode, sizeof(mi->devnode), "/dev/mixer%d", i);  in mixer_oss_mixerinfo()
1560  * Allow the sound driver to use the mixer lock to protect its mixer