55     &snd_unit_auto, 0, "assign default unit to a newly attached device");
57 SYSCTL_NODE(_hw, OID_AUTO, snd, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
99 	struct snddev_info *d;  in snd_setup_intr()  local
103 	d = device_get_softc(dev);  in snd_setup_intr()
104 	if (d != NULL && (flags & INTR_MPSAFE))  in snd_setup_intr()
105 		d->flags |= SD_F_MPSAFE;  in snd_setup_intr()
113 	struct snddev_info *d;  in sysctl_hw_snd_default_unit()  local
117 	error = sysctl_handle_int(oidp, &unit, 0, req);  in sysctl_hw_snd_default_unit()
118 	if (error == 0 && req->newptr != NULL) {  in sysctl_hw_snd_default_unit()
120 		d = devclass_get_softc(pcm_devclass, unit);  in sysctl_hw_snd_default_unit()
121 		if (!PCM_REGISTERED(d) || CHN_EMPTY(d, channels.pcm)) {  in sysctl_hw_snd_default_unit()
126 		snd_unit_auto = 0;  in sysctl_hw_snd_default_unit()
133     CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, 0,
140 	struct snddev_info *d = device_get_softc(dev);  in pcm_addchan()  local
143 	PCM_LOCK(d);  in pcm_addchan()
144 	PCM_WAIT(d);  in pcm_addchan()
145 	PCM_ACQUIRE(d);  in pcm_addchan()
146 	ch = chn_init(d, NULL, cls, dir, devinfo);  in pcm_addchan()
148 		device_printf(d->dev, "chn_init(%s, %d, %p) failed\n",  in pcm_addchan()
150 		PCM_UNLOCK(d);  in pcm_addchan()
153 	PCM_RELEASE(d);  in pcm_addchan()
154 	PCM_UNLOCK(d);  in pcm_addchan()
156 	return (0);  in pcm_addchan()
160 pcm_killchans(struct snddev_info *d)  in pcm_killchans()  argument
165 	PCM_BUSYASSERT(d);  in pcm_killchans()
166 	KASSERT(!PCM_REGISTERED(d), ("%s(): still registered\n", __func__));  in pcm_killchans()
171 		CHN_FOREACH(ch, d, channels.pcm) {  in pcm_killchans()
173 			if (ch->inprog == 0 && ch->sleeping == 0 &&  in pcm_killchans()
191 			pause_sbt("pcmkillchans", mstosbt(5), 0, 0);  in pcm_killchans()
197 	while (!CHN_EMPTY(d, channels.pcm)) {  in pcm_killchans()
198 		ch = CHN_FIRST(d, channels.pcm);  in pcm_killchans()
202 	if (d->p_unr != NULL)  in pcm_killchans()
203 		delete_unrhdr(d->p_unr);  in pcm_killchans()
204 	if (d->vp_unr != NULL)  in pcm_killchans()
205 		delete_unrhdr(d->vp_unr);  in pcm_killchans()
206 	if (d->r_unr != NULL)  in pcm_killchans()
207 		delete_unrhdr(d->r_unr);  in pcm_killchans()
208 	if (d->vr_unr != NULL)  in pcm_killchans()
209 		delete_unrhdr(d->vr_unr);  in pcm_killchans()
215 	struct snddev_info *d;  in pcm_best_unit()  local
221 	for (i = 0; pcm_devclass != NULL &&  in pcm_best_unit()
223 		d = devclass_get_softc(pcm_devclass, i);  in pcm_best_unit()
224 		if (!PCM_REGISTERED(d))  in pcm_best_unit()
226 		prio = 0;  in pcm_best_unit()
227 		if (d->playcount == 0)  in pcm_best_unit()
229 		if (d->reccount == 0)  in pcm_best_unit()
244 	struct snddev_info *d = device_get_softc(dev);  in pcm_getflags()  local
246 	return d->flags;  in pcm_getflags()
252 	struct snddev_info *d = device_get_softc(dev);  in pcm_setflags()  local
254 	d->flags = val;  in pcm_setflags()
260 	struct snddev_info *d = device_get_softc(dev);  in pcm_getdevinfo()  local
262 	return d->devinfo;  in pcm_getdevinfo()
268 	struct snddev_info *d = device_get_softc(dev);  in pcm_getbuffersize()  local
271 	sz = 0;  in pcm_getbuffersize()
272 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "buffersize", &sz) == 0) {  in pcm_getbuffersize()
276 …device_printf(dev, "'buffersize=%d' hint is out of range (%d-%d), using %d\n", x, minbufsz, maxbuf…  in pcm_getbuffersize()
283 			device_printf(dev, "'buffersize=%d' hint is not a power of 2, using %d\n", sz, x);  in pcm_getbuffersize()
290 	d->bufsz = sz;  in pcm_getbuffersize()
298 	struct snddev_info *d;  in sysctl_dev_pcm_bitperfect()  local
301 	d = oidp->oid_arg1;  in sysctl_dev_pcm_bitperfect()
302 	if (!PCM_REGISTERED(d))  in sysctl_dev_pcm_bitperfect()
305 	PCM_LOCK(d);  in sysctl_dev_pcm_bitperfect()
306 	PCM_WAIT(d);  in sysctl_dev_pcm_bitperfect()
307 	val = (d->flags & SD_F_BITPERFECT) ? 1 : 0;  in sysctl_dev_pcm_bitperfect()
308 	PCM_ACQUIRE(d);  in sysctl_dev_pcm_bitperfect()
309 	PCM_UNLOCK(d);  in sysctl_dev_pcm_bitperfect()
311 	err = sysctl_handle_int(oidp, &val, 0, req);  in sysctl_dev_pcm_bitperfect()
313 	if (err == 0 && req->newptr != NULL) {  in sysctl_dev_pcm_bitperfect()
314 		if (!(val == 0 || val == 1)) {  in sysctl_dev_pcm_bitperfect()
315 			PCM_RELEASE_QUICK(d);  in sysctl_dev_pcm_bitperfect()
319 		PCM_LOCK(d);  in sysctl_dev_pcm_bitperfect()
321 		d->flags &= ~SD_F_BITPERFECT;  in sysctl_dev_pcm_bitperfect()
322 		d->flags |= (val != 0) ? SD_F_BITPERFECT : 0;  in sysctl_dev_pcm_bitperfect()
324 		PCM_RELEASE(d);  in sysctl_dev_pcm_bitperfect()
325 		PCM_UNLOCK(d);  in sysctl_dev_pcm_bitperfect()
327 		PCM_RELEASE_QUICK(d);  in sysctl_dev_pcm_bitperfect()
335 	struct snddev_info *d;  in sysctl_dev_pcm_mode()  local
336 	int mode = 0;  in sysctl_dev_pcm_mode()
338 	d = oidp->oid_arg1;  in sysctl_dev_pcm_mode()
339 	if (!PCM_REGISTERED(d))  in sysctl_dev_pcm_mode()
342 	PCM_LOCK(d);  in sysctl_dev_pcm_mode()
343 	if (d->playcount > 0)  in sysctl_dev_pcm_mode()
345 	if (d->reccount > 0)  in sysctl_dev_pcm_mode()
347 	if (d->mixer_dev != NULL)  in sysctl_dev_pcm_mode()
349 	PCM_UNLOCK(d);  in sysctl_dev_pcm_mode()
351 	return (sysctl_handle_int(oidp, &mode, 0, req));  in sysctl_dev_pcm_mode()
357   	struct snddev_info *d = device_get_softc(dev);  in pcm_sysinit()  local
359 	sysctl_ctx_init(&d->play_sysctl_ctx);  in pcm_sysinit()
360 	d->play_sysctl_tree = SYSCTL_ADD_NODE(&d->play_sysctl_ctx,  in pcm_sysinit()
362 	    CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "playback channels node");  in pcm_sysinit()
363 	sysctl_ctx_init(&d->rec_sysctl_ctx);  in pcm_sysinit()
364 	d->rec_sysctl_tree = SYSCTL_ADD_NODE(&d->rec_sysctl_ctx,  in pcm_sysinit()
366 	    CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "recording channels node");  in pcm_sysinit()
372             OID_AUTO, "buffersize", CTLFLAG_RD, &d->bufsz, 0, "allocated buffer size");  in pcm_sysinit()
375 	    "bitperfect", CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, d,  in pcm_sysinit()
376 	    sizeof(d), sysctl_dev_pcm_bitperfect, "I",  in pcm_sysinit()
377 	    "bit-perfect playback/recording (0=disable, 1=enable)");  in pcm_sysinit()
380 	    "mode", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, d, sizeof(d),  in pcm_sysinit()
385 	if (d->flags & SD_F_EQ)  in pcm_sysinit()
396 	struct snddev_info *d;  in pcm_init()  local
399 	d = device_get_softc(dev);  in pcm_init()
400 	d->dev = dev;  in pcm_init()
401 	d->lock = snd_mtxcreate(device_get_nameunit(dev), "sound cdev");  in pcm_init()
402 	cv_init(&d->cv, device_get_nameunit(dev));  in pcm_init()
404 	i = 0;  in pcm_init()
406 	    "vpc", &i) != 0 || i != 0)  in pcm_init()
407 		d->flags |= SD_F_VPC;  in pcm_init()
410 	    "bitperfect", &i) == 0 && i != 0)  in pcm_init()
411 		d->flags |= SD_F_BITPERFECT;  in pcm_init()
413 	d->devinfo = devinfo;  in pcm_init()
414 	d->reccount = 0;  in pcm_init()
415 	d->playcount = 0;  in pcm_init()
416 	d->pvchancount = 0;  in pcm_init()
417 	d->rvchancount = 0;  in pcm_init()
418 	d->pvchanrate = 0;  in pcm_init()
419 	d->pvchanformat = 0;  in pcm_init()
420 	d->rvchanrate = 0;  in pcm_init()
421 	d->rvchanformat = 0;  in pcm_init()
422 	d->p_unr = new_unrhdr(0, INT_MAX, NULL);  in pcm_init()
423 	d->vp_unr = new_unrhdr(0, INT_MAX, NULL);  in pcm_init()
424 	d->r_unr = new_unrhdr(0, INT_MAX, NULL);  in pcm_init()
425 	d->vr_unr = new_unrhdr(0, INT_MAX, NULL);  in pcm_init()
427 	CHN_INIT(d, channels.pcm);  in pcm_init()
428 	CHN_INIT(d, channels.pcm.busy);  in pcm_init()
429 	CHN_INIT(d, channels.pcm.opened);  in pcm_init()
430 	CHN_INIT(d, channels.pcm.primary);  in pcm_init()
436 	struct snddev_info *d = device_get_softc(dev);  in pcm_register()  local
439 	if (d->flags & SD_F_REGISTERED)  in pcm_register()
442 	if (d->playcount == 0 || d->reccount == 0)  in pcm_register()
443 		d->flags |= SD_F_SIMPLEX;  in pcm_register()
444 	if (d->playcount > 0)  in pcm_register()
445 		d->flags |= SD_F_PVCHANS;  in pcm_register()
446 	if (d->reccount > 0)  in pcm_register()
447 		d->flags |= SD_F_RVCHANS;  in pcm_register()
449 	strlcpy(d->status, str, SND_STATUSLEN);  in pcm_register()
452 	d->flags |= SD_F_REGISTERED;  in pcm_register()
460 	if (snd_unit_auto < 0)  in pcm_register()
461 		snd_unit_auto = (snd_unit < 0) ? 1 : 0;  in pcm_register()
462 	if (snd_unit < 0 || snd_unit_auto > 1)  in pcm_register()
467 	sndstat_register(dev, d->status);  in pcm_register()
475 	struct snddev_info *d;  in pcm_unregister()  local
477 	d = device_get_softc(dev);  in pcm_unregister()
479 	if (!PCM_ALIVE(d)) {  in pcm_unregister()
481 		return (0);  in pcm_unregister()
484 	PCM_LOCK(d);  in pcm_unregister()
485 	PCM_WAIT(d);  in pcm_unregister()
487 	d->flags &= ~SD_F_REGISTERED;  in pcm_unregister()
489 	PCM_ACQUIRE(d);  in pcm_unregister()
490 	PCM_UNLOCK(d);  in pcm_unregister()
492 	pcm_killchans(d);  in pcm_unregister()
494 	PCM_RELEASE_QUICK(d);  in pcm_unregister()
496 	if (d->play_sysctl_tree != NULL) {  in pcm_unregister()
497 		sysctl_ctx_free(&d->play_sysctl_ctx);  in pcm_unregister()
498 		d->play_sysctl_tree = NULL;  in pcm_unregister()
500 	if (d->rec_sysctl_tree != NULL) {  in pcm_unregister()
501 		sysctl_ctx_free(&d->rec_sysctl_ctx);  in pcm_unregister()
502 		d->rec_sysctl_tree = NULL;  in pcm_unregister()
509 	cv_destroy(&d->cv);  in pcm_unregister()
510 	snd_mtxfree(d->lock);  in pcm_unregister()
514 		if (snd_unit_auto == 0)  in pcm_unregister()
518 	return (0);  in pcm_unregister()
548 	struct snddev_info *d;  in sound_oss_sysinfo()  local
562 	si->numaudioengines = 0;  in sound_oss_sysinfo()
565 	j = 0;  in sound_oss_sysinfo()
568 	for (i = 0; pcm_devclass != NULL &&  in sound_oss_sysinfo()
570 		d = devclass_get_softc(pcm_devclass, i);  in sound_oss_sysinfo()
571 		if (!PCM_REGISTERED(d))  in sound_oss_sysinfo()
577 		PCM_UNLOCKASSERT(d);  in sound_oss_sysinfo()
578 		PCM_LOCK(d);  in sound_oss_sysinfo()
580 		si->numaudioengines += PCM_CHANCOUNT(d);  in sound_oss_sysinfo()
582 		CHN_FOREACH(c, d, channels.pcm) {  in sound_oss_sysinfo()
592 		PCM_UNLOCK(d);  in sound_oss_sysinfo()
596 	si->numsynths = 0;	/* OSSv4 docs:  this field is obsolete */  in sound_oss_sysinfo()
608 	si->nummidis = 0;  in sound_oss_sysinfo()
609 	si->numtimers = 0;  in sound_oss_sysinfo()
635 	for (i = 0; i < nitems(si->filler); i++)  in sound_oss_sysinfo()
642 	struct snddev_info *d;  in sound_oss_card_info()  local
646 	for (i = 0; pcm_devclass != NULL &&  in sound_oss_card_info()
648 		d = devclass_get_softc(pcm_devclass, i);  in sound_oss_card_info()
652 		if (!PCM_REGISTERED(d)) {  in sound_oss_card_info()
654 			    "pcm%d (n/a)", i);  in sound_oss_card_info()
657 			si->hw_info[0] = '\0';  in sound_oss_card_info()
658 			si->intr_count = si->ack_count = 0;  in sound_oss_card_info()
660 			PCM_UNLOCKASSERT(d);  in sound_oss_card_info()
661 			PCM_LOCK(d);  in sound_oss_card_info()
663 			strlcpy(si->shortname, device_get_nameunit(d->dev),  in sound_oss_card_info()
665 			strlcpy(si->longname, device_get_desc(d->dev),  in sound_oss_card_info()
667 			strlcpy(si->hw_info, d->status, sizeof(si->hw_info));  in sound_oss_card_info()
668 			si->intr_count = si->ack_count = 0;  in sound_oss_card_info()
670 			PCM_UNLOCK(d);  in sound_oss_card_info()
674 		return (0);  in sound_oss_card_info()
686 	if (snd_verbose < 0 || snd_verbose > 4)  in sound_global_init()
689 	if (snd_unit < 0)  in sound_global_init()
716 		printf("%s: snd_unit=%d snd_vchans_enable=%d "  in sound_global_init()
717 		    "latency=%d "  in sound_global_init()
718 		    "feeder_rate_min=%d feeder_rate_max=%d "  in sound_global_init()
719 		    "feeder_rate_round=%d\n",  in sound_global_init()
731 	ret = 0;  in sound_modevent()