1 // SPDX-License-Identifier: GPL-2.0-or-later
15  *   - the linked URBs would be preferred but not used so far because of
17  *   - type II is not supported properly.  there is no device which supports
19  *     indeed an AC3 stream packed in SPDIF frames (i.e. no real AC3 stream).
33 #include <linux/usb/audio-v2.h>
34 #include <linux/usb/audio-v3.h>
63 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
67 static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
68 static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
97 MODULE_PARM_DESC(autoclock, "Enable auto-clock selection for UAC2 devices (default: yes).");
136 		return -EEXIST;  in snd_usb_register_platform_ops()
169 	if (!platform_ops || !platform_ops->connect_cb)  in snd_usb_rediscover_devices()
174 			platform_ops->connect_cb(usb_chip[i]);  in snd_usb_rediscover_devices()
200 		list_for_each_entry(as, &chip->pcm_list, list) {  in snd_usb_find_suppported_substream()
201 			subs = &as->substream[direction];  in snd_usb_find_suppported_substream()
221 		subs = &as->substream[idx];  in snd_usb_stream_disconnect()
222 		if (!subs->num_formats)  in snd_usb_stream_disconnect()
224 		subs->data_endpoint = NULL;  in snd_usb_stream_disconnect()
225 		subs->sync_endpoint = NULL;  in snd_usb_stream_disconnect()
231 	struct usb_device *dev = chip->dev;  in snd_usb_create_stream()
237 		dev_err(&dev->dev, "%u:%d : does not exist\n",  in snd_usb_create_stream()
239 		return -EINVAL;  in snd_usb_create_stream()
242 	alts = &iface->altsetting[0];  in snd_usb_create_stream()
249 	if ((chip->usb_id == USB_ID(0x18d1, 0x2d04) ||  in snd_usb_create_stream()
250 	     chip->usb_id == USB_ID(0x18d1, 0x2d05)) &&  in snd_usb_create_stream()
252 	    altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC &&  in snd_usb_create_stream()
253 	    altsd->bInterfaceSubClass == USB_SUBCLASS_VENDOR_SPEC) {  in snd_usb_create_stream()
257 			return -EINVAL;  in snd_usb_create_stream()
258 		alts = &iface->altsetting[0];  in snd_usb_create_stream()
263 		dev_dbg(&dev->dev, "%d:%d: skipping, already claimed\n",  in snd_usb_create_stream()
265 		return -EINVAL;  in snd_usb_create_stream()
268 	if ((altsd->bInterfaceClass == USB_CLASS_AUDIO ||  in snd_usb_create_stream()
269 	     altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC) &&  in snd_usb_create_stream()
270 	    altsd->bInterfaceSubClass == USB_SUBCLASS_MIDISTREAMING) {  in snd_usb_create_stream()
272 						 chip->usb_id);  in snd_usb_create_stream()
274 			dev_err(&dev->dev,  in snd_usb_create_stream()
277 			return -EINVAL;  in snd_usb_create_stream()
283 	if ((altsd->bInterfaceClass != USB_CLASS_AUDIO &&  in snd_usb_create_stream()
284 	     altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||  in snd_usb_create_stream()
285 	    altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING) {  in snd_usb_create_stream()
286 		dev_dbg(&dev->dev,  in snd_usb_create_stream()
287 			"%u:%d: skipping non-supported interface %d\n",  in snd_usb_create_stream()
288 			ctrlif, interface, altsd->bInterfaceClass);  in snd_usb_create_stream()
289 		/* skip non-supported classes */  in snd_usb_create_stream()
290 		return -EINVAL;  in snd_usb_create_stream()
294 		dev_err(&dev->dev, "low speed audio streaming not supported\n");  in snd_usb_create_stream()
295 		return -EINVAL;  in snd_usb_create_stream()
314 	struct usb_device *dev = chip->dev;  in snd_usb_create_streams()
320 	host_iface = &usb_ifnum_to_if(dev, ctrlif)->altsetting[0];  in snd_usb_create_streams()
322 	protocol = altsd->bInterfaceProtocol;  in snd_usb_create_streams()
326 		dev_warn(&dev->dev,  in snd_usb_create_streams()
335 		h1 = snd_usb_find_csint_desc(host_iface->extra,  in snd_usb_create_streams()
336 							 host_iface->extralen,  in snd_usb_create_streams()
338 		if (!h1 || h1->bLength < sizeof(*h1)) {  in snd_usb_create_streams()
339 			dev_err(&dev->dev, "cannot find UAC_HEADER\n");  in snd_usb_create_streams()
340 			return -EINVAL;  in snd_usb_create_streams()
343 		rest_bytes = (void *)(host_iface->extra +  in snd_usb_create_streams()
344 				host_iface->extralen) - (void *)h1;  in snd_usb_create_streams()
346 		/* just to be sure -- this shouldn't hit at all */  in snd_usb_create_streams()
348 			dev_err(&dev->dev, "invalid control header\n");  in snd_usb_create_streams()
349 			return -EINVAL;  in snd_usb_create_streams()
353 			dev_err(&dev->dev, "too short v1 buffer descriptor\n");  in snd_usb_create_streams()
354 			return -EINVAL;  in snd_usb_create_streams()
357 		if (!h1->bInCollection) {  in snd_usb_create_streams()
358 			dev_info(&dev->dev, "skipping empty audio interface (v1)\n");  in snd_usb_create_streams()
359 			return -EINVAL;  in snd_usb_create_streams()
362 		if (rest_bytes < h1->bLength) {  in snd_usb_create_streams()
363 			dev_err(&dev->dev, "invalid buffer length (v1)\n");  in snd_usb_create_streams()
364 			return -EINVAL;  in snd_usb_create_streams()
367 		if (h1->bLength < sizeof(*h1) + h1->bInCollection) {  in snd_usb_create_streams()
368 			dev_err(&dev->dev, "invalid UAC_HEADER (v1)\n");  in snd_usb_create_streams()
369 			return -EINVAL;  in snd_usb_create_streams()
372 		for (i = 0; i < h1->bInCollection; i++)  in snd_usb_create_streams()
373 			snd_usb_create_stream(chip, ctrlif, h1->baInterfaceNr[i]);  in snd_usb_create_streams()
381 			usb_ifnum_to_if(dev, ctrlif)->intf_assoc;  in snd_usb_create_streams()
386 			 * the IAD on the NuForce UDH-100, also check the next  in snd_usb_create_streams()
392 			    iface->intf_assoc &&  in snd_usb_create_streams()
393 			    iface->intf_assoc->bFunctionClass == USB_CLASS_AUDIO &&  in snd_usb_create_streams()
394 			    iface->intf_assoc->bFunctionProtocol == UAC_VERSION_2)  in snd_usb_create_streams()
395 				assoc = iface->intf_assoc;  in snd_usb_create_streams()
399 			dev_err(&dev->dev, "Audio class v2/v3 interfaces need an interface association\n");  in snd_usb_create_streams()
400 			return -EINVAL;  in snd_usb_create_streams()
404 			int badd = assoc->bFunctionSubClass;  in snd_usb_create_streams()
409 				dev_err(&dev->dev,  in snd_usb_create_streams()
411 				return -EINVAL;  in snd_usb_create_streams()
414 			chip->badd_profile = badd;  in snd_usb_create_streams()
417 		for (i = 0; i < assoc->bInterfaceCount; i++) {  in snd_usb_create_streams()
418 			int intf = assoc->bFirstInterface + i;  in snd_usb_create_streams()
438 	const char *profile_name;	/* override card->longname */
451 		     "HP-Thunderbolt-Dock-Audio-Headset"),
454 		     "HP-Thunderbolt-Dock-Audio-Module"),
457 	 * TRX40 Aorus Master has two USB-audio devices, one for the front
459 	 * I/O (the rear panel and the front mic) with Realtek ALC1220-VB.
463 		     "Gigabyte-Aorus-Master-Front-Headphone"),
465 		     "Gigabyte-Aorus-Master-Main-Audio"),
469 		     "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"),
471 	/* Creative/E-Mu devices */
473 	/* Creative/Toshiba Multimedia Center SB-0500 */
474 	DEVICE_NAME(0x041e, 0x3048, "Toshiba", "SB-0500"),
477 	DEVICE_NAME(0x046d, 0x0867, "Logitech, Inc.", "Logi-MeetUp"),
478 	DEVICE_NAME(0x046d, 0x0874, "Logitech, Inc.", "Logi-Tap-Audio"),
479 	DEVICE_NAME(0x046d, 0x087c, "Logitech, Inc.", "Logi-Huddle"),
480 	DEVICE_NAME(0x046d, 0x0898, "Logitech, Inc.", "Logi-RB-Audio"),
481 	DEVICE_NAME(0x046d, 0x08d2, "Logitech, Inc.", "Logi-RBM-Audio"),
491 		     "Zenith-II-Front-Headphone"),
493 		     "Zenith-II-Main-Audio"),
497 		     "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"),
498 	/* ASUS PRIME TRX40 PRO-S */
500 		     "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"),
503 	PROFILE_NAME(0x0bda, 0x4014, "Dell", "WD15 Dock", "Dell-WD15-Dock"),
505 	PROFILE_NAME(0x0bda, 0x402e, "Dell", "WD19 Dock", "Dell-WD15-Dock"),
518 		     "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"),
521 		     "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"),
523 	DEVICE_NAME(0x0fd9, 0x0008, "Hauppauge", "HVR-950Q"),
527 		     "HP-Engage-Go-Dock"),
534 	DEVICE_NAME(0x13e5, 0x0001, "Rane", "SL-1"),
536 	/* Lenovo ThinkStation P620 Rear Line-in, Line-out and Microphone */
538 		     "Lenovo-ThinkStation-P620-Rear"),
541 		     "Lenovo-ThinkStation-P620-Main"),
545 		     "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"),
547 	DEVICE_NAME(0x2040, 0x7200, "Hauppauge", "HVR-950Q"),
548 	DEVICE_NAME(0x2040, 0x7201, "Hauppauge", "HVR-950Q-MXL"),
549 	DEVICE_NAME(0x2040, 0x7210, "Hauppauge", "HVR-950Q"),
550 	DEVICE_NAME(0x2040, 0x7211, "Hauppauge", "HVR-950Q-MXL"),
551 	DEVICE_NAME(0x2040, 0x7213, "Hauppauge", "HVR-950Q"),
552 	DEVICE_NAME(0x2040, 0x7217, "Hauppauge", "HVR-950Q"),
553 	DEVICE_NAME(0x2040, 0x721b, "Hauppauge", "HVR-950Q"),
554 	DEVICE_NAME(0x2040, 0x721e, "Hauppauge", "HVR-950Q"),
555 	DEVICE_NAME(0x2040, 0x721f, "Hauppauge", "HVR-950Q"),
556 	DEVICE_NAME(0x2040, 0x7240, "Hauppauge", "HVR-850"),
557 	DEVICE_NAME(0x2040, 0x7260, "Hauppauge", "HVR-950Q"),
558 	DEVICE_NAME(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
559 	DEVICE_NAME(0x2040, 0x7280, "Hauppauge", "HVR-950Q"),
560 	DEVICE_NAME(0x2040, 0x7281, "Hauppauge", "HVR-950Q-MXL"),
571 	for (p = usb_audio_names; p->id; p++)  in lookup_device_name()
572 		if (p->id == id)  in lookup_device_name()
586 	struct snd_usb_audio *chip = card->private_data;  in snd_usb_audio_free()
591 	mutex_destroy(&chip->mutex);  in snd_usb_audio_free()
592 	if (!atomic_read(&chip->shutdown))  in snd_usb_audio_free()
593 		dev_set_drvdata(&chip->dev->dev, NULL);  in snd_usb_audio_free()
600 	struct snd_card *card = chip->card;  in usb_audio_make_shortname()
604 	preset = lookup_device_name(chip->usb_id);  in usb_audio_make_shortname()
605 	if (preset && preset->product_name)  in usb_audio_make_shortname()
606 		s = preset->product_name;  in usb_audio_make_shortname()
607 	else if (quirk && quirk->product_name)  in usb_audio_make_shortname()
608 		s = quirk->product_name;  in usb_audio_make_shortname()
610 		strscpy(card->shortname, s, sizeof(card->shortname));  in usb_audio_make_shortname()
615 	if (!dev->descriptor.iProduct ||  in usb_audio_make_shortname()
616 	    usb_string(dev, dev->descriptor.iProduct,  in usb_audio_make_shortname()
617 		       card->shortname, sizeof(card->shortname)) <= 0) {  in usb_audio_make_shortname()
619 		scnprintf(card->shortname, sizeof(card->shortname),  in usb_audio_make_shortname()
621 			  USB_ID_VENDOR(chip->usb_id),  in usb_audio_make_shortname()
622 			  USB_ID_PRODUCT(chip->usb_id));  in usb_audio_make_shortname()
625 	strim(card->shortname);  in usb_audio_make_shortname()
632 	struct snd_card *card = chip->card;  in usb_audio_make_longname()
637 	preset = lookup_device_name(chip->usb_id);  in usb_audio_make_longname()
639 	/* shortcut - if any pre-defined string is given, use it */  in usb_audio_make_longname()
640 	if (preset && preset->profile_name)  in usb_audio_make_longname()
641 		s = preset->profile_name;  in usb_audio_make_longname()
643 		strscpy(card->longname, s, sizeof(card->longname));  in usb_audio_make_longname()
647 	if (preset && preset->vendor_name)  in usb_audio_make_longname()
648 		s = preset->vendor_name;  in usb_audio_make_longname()
649 	else if (quirk && quirk->vendor_name)  in usb_audio_make_longname()
650 		s = quirk->vendor_name;  in usb_audio_make_longname()
651 	*card->longname = 0;  in usb_audio_make_longname()
653 		strscpy(card->longname, s, sizeof(card->longname));  in usb_audio_make_longname()
656 		if (dev->descriptor.iManufacturer)  in usb_audio_make_longname()
657 			usb_string(dev, dev->descriptor.iManufacturer,  in usb_audio_make_longname()
658 				   card->longname, sizeof(card->longname));  in usb_audio_make_longname()
661 	if (*card->longname) {  in usb_audio_make_longname()
662 		strim(card->longname);  in usb_audio_make_longname()
663 		if (*card->longname)  in usb_audio_make_longname()
664 			strlcat(card->longname, " ", sizeof(card->longname));  in usb_audio_make_longname()
667 	strlcat(card->longname, card->shortname, sizeof(card->longname));  in usb_audio_make_longname()
669 	len = strlcat(card->longname, " at ", sizeof(card->longname));  in usb_audio_make_longname()
671 	if (len < sizeof(card->longname))  in usb_audio_make_longname()
672 		usb_make_path(dev, card->longname + len, sizeof(card->longname) - len);  in usb_audio_make_longname()
676 		strlcat(card->longname, ", low speed", sizeof(card->longname));  in usb_audio_make_longname()
679 		strlcat(card->longname, ", full speed", sizeof(card->longname));  in usb_audio_make_longname()
682 		strlcat(card->longname, ", high speed", sizeof(card->longname));  in usb_audio_make_longname()
685 		strlcat(card->longname, ", super speed", sizeof(card->longname));  in usb_audio_make_longname()
688 		strlcat(card->longname, ", super speed plus", sizeof(card->longname));  in usb_audio_make_longname()
719 		dev_err(&dev->dev, "unknown device speed %d\n", snd_usb_get_speed(dev));  in snd_usb_audio_create()
720 		return -ENXIO;  in snd_usb_audio_create()
723 	err = snd_card_new(&intf->dev, index[idx], id[idx], THIS_MODULE,  in snd_usb_audio_create()
726 		dev_err(&dev->dev, "cannot create card instance %d\n", idx);  in snd_usb_audio_create()
730 	chip = card->private_data;  in snd_usb_audio_create()
731 	mutex_init(&chip->mutex);  in snd_usb_audio_create()
732 	init_waitqueue_head(&chip->shutdown_wait);  in snd_usb_audio_create()
733 	chip->index = idx;  in snd_usb_audio_create()
734 	chip->dev = dev;  in snd_usb_audio_create()
735 	chip->card = card;  in snd_usb_audio_create()
736 	chip->setup = device_setup[idx];  in snd_usb_audio_create()
737 	chip->generic_implicit_fb = implicit_fb[idx];  in snd_usb_audio_create()
738 	chip->autoclock = autoclock;  in snd_usb_audio_create()
739 	chip->lowlatency = lowlatency;  in snd_usb_audio_create()
740 	atomic_set(&chip->active, 1); /* avoid autopm during probing */  in snd_usb_audio_create()
741 	atomic_set(&chip->usage_count, 0);  in snd_usb_audio_create()
742 	atomic_set(&chip->shutdown, 0);  in snd_usb_audio_create()
744 	chip->usb_id = usb_id;  in snd_usb_audio_create()
745 	INIT_LIST_HEAD(&chip->pcm_list);  in snd_usb_audio_create()
746 	INIT_LIST_HEAD(&chip->ep_list);  in snd_usb_audio_create()
747 	INIT_LIST_HEAD(&chip->iface_ref_list);  in snd_usb_audio_create()
748 	INIT_LIST_HEAD(&chip->clock_ref_list);  in snd_usb_audio_create()
749 	INIT_LIST_HEAD(&chip->midi_list);  in snd_usb_audio_create()
750 	INIT_LIST_HEAD(&chip->midi_v2_list);  in snd_usb_audio_create()
751 	INIT_LIST_HEAD(&chip->mixer_list);  in snd_usb_audio_create()
754 		chip->quirk_flags = quirk_flags[idx];  in snd_usb_audio_create()
758 	card->private_free = snd_usb_audio_free;  in snd_usb_audio_create()
760 	strscpy(card->driver, "USB-Audio");  in snd_usb_audio_create()
762 		  USB_ID_VENDOR(chip->usb_id), USB_ID_PRODUCT(chip->usb_id));  in snd_usb_audio_create()
785 		dev_info(&dev->dev,  in get_alias_id()
804 		    id == chip->usb_id)  in check_delayed_register_option()
808 	return -1;  in check_delayed_register_option()
816 	struct usb_host_config *config = chip->dev->actconfig;  in find_last_interface()
822 	for (i = 0; i < config->desc.bNumInterfaces; i++) {  in find_last_interface()
823 		intf = config->interface[i];  in find_last_interface()
825 			chip->last_iface = intf->altsetting[0].desc.bInterfaceNumber;  in find_last_interface()
827 	usb_audio_dbg(chip, "Found last interface = %d\n", chip->last_iface);  in find_last_interface()
836 	for (p = usb_audio_ids; p->match_flags; p++) {  in get_alias_quirk()
838 		if ((p->match_flags & USB_DEVICE_ID_MATCH_DEVICE) ==  in get_alias_quirk()
840 		    p->idVendor == USB_ID_VENDOR(id) &&  in get_alias_quirk()
841 		    p->idProduct == USB_ID_PRODUCT(id))  in get_alias_quirk()
842 			return (const struct snd_usb_audio_quirk *)p->driver_info;  in get_alias_quirk()
854 	    chip->last_iface == ifnum ||  in try_to_register_card()
855 	    usb_interface_claimed(usb_ifnum_to_if(chip->dev, chip->last_iface)))  in try_to_register_card()
856 		return snd_card_register(chip->card);  in try_to_register_card()
875 		(const struct snd_usb_audio_quirk *)usb_id->driver_info;  in usb_audio_probe()
882 	alts = &intf->altsetting[0];  in usb_audio_probe()
883 	ifnum = get_iface_desc(alts)->bInterfaceNumber;  in usb_audio_probe()
884 	id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),  in usb_audio_probe()
885 		    le16_to_cpu(dev->descriptor.idProduct));  in usb_audio_probe()
888 	if (quirk && quirk->ifnum >= 0 && ifnum != quirk->ifnum)  in usb_audio_probe()
889 		return -ENXIO;  in usb_audio_probe()
890 	if (quirk && quirk->ifnum == QUIRK_NODEV_INTERFACE)  in usb_audio_probe()
891 		return -ENODEV;  in usb_audio_probe()
905 		if (usb_chip[i] && usb_chip[i]->dev == dev) {  in usb_audio_probe()
906 			if (atomic_read(&usb_chip[i]->shutdown)) {  in usb_audio_probe()
907 				dev_err(&dev->dev, "USB device is in the shutdown state, cannot create a card instance\n");  in usb_audio_probe()
908 				err = -EIO;  in usb_audio_probe()
912 			atomic_inc(&chip->active); /* avoid autopm */  in usb_audio_probe()
926 			    (vid[i] == -1 || vid[i] == USB_ID_VENDOR(id)) &&  in usb_audio_probe()
927 			    (pid[i] == -1 || pid[i] == USB_ID_PRODUCT(id))) {  in usb_audio_probe()
934 				} else if (vid[i] != -1 || pid[i] != -1) {  in usb_audio_probe()
935 					dev_info(&dev->dev,  in usb_audio_probe()
939 					err = -ENOENT;  in usb_audio_probe()
944 			dev_err(&dev->dev, "no available usb audio device\n");  in usb_audio_probe()
945 			err = -ENODEV;  in usb_audio_probe()
951 	if (chip->num_interfaces >= MAX_CARD_INTERFACES) {  in usb_audio_probe()
952 		dev_info(&dev->dev, "Too many interfaces assigned to the single USB-audio card\n");  in usb_audio_probe()
953 		err = -EINVAL;  in usb_audio_probe()
957 	dev_set_drvdata(&dev->dev, chip);  in usb_audio_probe()
960 		chip->quirk_flags |= QUIRK_FLAG_IGNORE_CTL_ERROR;  in usb_audio_probe()
962 	if (chip->quirk_flags & QUIRK_FLAG_DISABLE_AUTOSUSPEND)  in usb_audio_probe()
970 	if (!chip->ctrl_intf)  in usb_audio_probe()
971 		chip->ctrl_intf = alts;  in usb_audio_probe()
974 	if (quirk && quirk->ifnum != QUIRK_NO_INTERFACE) {  in usb_audio_probe()
991 	if (chip->need_delayed_register) {  in usb_audio_probe()
992 		dev_info(&dev->dev,  in usb_audio_probe()
993 			 "Found post-registration device assignment: %08x:%02x\n",  in usb_audio_probe()
994 			 chip->usb_id, ifnum);  in usb_audio_probe()
995 		chip->need_delayed_register = false; /* clear again */  in usb_audio_probe()
1002 	if (chip->quirk_flags & QUIRK_FLAG_SHARE_MEDIA_DEVICE) {  in usb_audio_probe()
1008 		chip->quirk_type = quirk->type;  in usb_audio_probe()
1010 	usb_chip[chip->index] = chip;  in usb_audio_probe()
1011 	chip->intf[chip->num_interfaces] = intf;  in usb_audio_probe()
1012 	chip->num_interfaces++;  in usb_audio_probe()
1014 	atomic_dec(&chip->active);  in usb_audio_probe()
1016 	if (platform_ops && platform_ops->connect_cb)  in usb_audio_probe()
1017 		platform_ops->connect_cb(chip);  in usb_audio_probe()
1029 		/* chip->active is inside the chip->card object,  in usb_audio_probe()
1032 		atomic_dec(&chip->active);  in usb_audio_probe()
1033 		if (!chip->num_interfaces)  in usb_audio_probe()
1034 			snd_card_free(chip->card);  in usb_audio_probe()
1053 	card = chip->card;  in usb_audio_disconnect()
1056 	if (platform_ops && platform_ops->disconnect_cb)  in usb_audio_disconnect()
1057 		platform_ops->disconnect_cb(chip);  in usb_audio_disconnect()
1059 	if (atomic_inc_return(&chip->shutdown) == 1) {  in usb_audio_disconnect()
1067 		wait_event(chip->shutdown_wait,  in usb_audio_disconnect()
1068 			   !atomic_read(&chip->usage_count));  in usb_audio_disconnect()
1071 		list_for_each_entry(as, &chip->pcm_list, list) {  in usb_audio_disconnect()
1075 		list_for_each_entry(ep, &chip->ep_list, list) {  in usb_audio_disconnect()
1079 		list_for_each(p, &chip->midi_list) {  in usb_audio_disconnect()
1084 		 * Nice to check quirk && quirk->shares_media_device and  in usb_audio_disconnect()
1092 		list_for_each_entry(mixer, &chip->mixer_list, list) {  in usb_audio_disconnect()
1097 	if (chip->quirk_flags & QUIRK_FLAG_DISABLE_AUTOSUSPEND)  in usb_audio_disconnect()
1100 	chip->num_interfaces--;  in usb_audio_disconnect()
1101 	if (chip->num_interfaces <= 0) {  in usb_audio_disconnect()
1102 		usb_chip[chip->index] = NULL;  in usb_audio_disconnect()
1115 	atomic_inc(&chip->usage_count);  in snd_usb_lock_shutdown()
1116 	if (atomic_read(&chip->shutdown)) {  in snd_usb_lock_shutdown()
1117 		err = -EIO;  in snd_usb_lock_shutdown()
1126 	if (atomic_dec_and_test(&chip->usage_count))  in snd_usb_lock_shutdown()
1127 		wake_up(&chip->shutdown_wait);  in snd_usb_lock_shutdown()
1136 	if (atomic_dec_and_test(&chip->usage_count))  in snd_usb_unlock_shutdown()
1137 		wake_up(&chip->shutdown_wait);  in snd_usb_unlock_shutdown()
1145 	if (atomic_read(&chip->shutdown))  in snd_usb_autoresume()
1146 		return -EIO;  in snd_usb_autoresume()
1147 	if (atomic_inc_return(&chip->active) != 1)  in snd_usb_autoresume()
1150 	for (i = 0; i < chip->num_interfaces; i++) {  in snd_usb_autoresume()
1151 		err = usb_autopm_get_interface(chip->intf[i]);  in snd_usb_autoresume()
1154 			while (--i >= 0)  in snd_usb_autoresume()
1155 				usb_autopm_put_interface(chip->intf[i]);  in snd_usb_autoresume()
1156 			atomic_dec(&chip->active);  in snd_usb_autoresume()
1168 	if (atomic_read(&chip->shutdown))  in snd_usb_autosuspend()
1170 	if (!atomic_dec_and_test(&chip->active))  in snd_usb_autosuspend()
1173 	for (i = 0; i < chip->num_interfaces; i++)  in snd_usb_autosuspend()
1174 		usb_autopm_put_interface(chip->intf[i]);  in snd_usb_autosuspend()
1189 	if (!chip->num_suspended_intf++) {  in usb_audio_suspend()
1190 		list_for_each_entry(as, &chip->pcm_list, list)  in usb_audio_suspend()
1192 		list_for_each_entry(ep, &chip->ep_list, list)  in usb_audio_suspend()
1194 		list_for_each(p, &chip->midi_list)  in usb_audio_suspend()
1196 		list_for_each_entry(mixer, &chip->mixer_list, list)  in usb_audio_suspend()
1201 	if (!PMSG_IS_AUTO(message) && !chip->system_suspend) {  in usb_audio_suspend()
1202 		snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);  in usb_audio_suspend()
1203 		chip->system_suspend = chip->num_suspended_intf;  in usb_audio_suspend()
1206 	if (platform_ops && platform_ops->suspend_cb)  in usb_audio_suspend()
1207 		platform_ops->suspend_cb(intf, message);  in usb_audio_suspend()
1223 	atomic_inc(&chip->active); /* avoid autopm */  in usb_audio_resume()
1224 	if (chip->num_suspended_intf > 1)  in usb_audio_resume()
1227 	list_for_each_entry(as, &chip->pcm_list, list) {  in usb_audio_resume()
1237 	list_for_each_entry(mixer, &chip->mixer_list, list) {  in usb_audio_resume()
1243 	list_for_each(p, &chip->midi_list) {  in usb_audio_resume()
1249 	if (platform_ops && platform_ops->resume_cb)  in usb_audio_resume()
1250 		platform_ops->resume_cb(intf);  in usb_audio_resume()
1253 	if (chip->num_suspended_intf == chip->system_suspend) {  in usb_audio_resume()
1254 		snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);  in usb_audio_resume()
1255 		chip->system_suspend = 0;  in usb_audio_resume()
1257 	chip->num_suspended_intf--;  in usb_audio_resume()
1260 	atomic_dec(&chip->active); /* allow autopm after this point */  in usb_audio_resume()
1265 #include "quirks-table.h"
1278 	.name =		"snd-usb-audio",