83 int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int free_flag);
125 void snd_device_initialize(struct device *dev, struct snd_card *card)  in snd_device_initialize()  argument
128 	if (card)  in snd_device_initialize()
129 		dev->parent = &card->card_dev;  in snd_device_initialize()
135 static int snd_card_do_free(struct snd_card *card);
164 	struct snd_card *card;  in snd_card_new()  local
173 	card = kzalloc(sizeof(*card) + extra_size, GFP_KERNEL);  in snd_card_new()
174 	if (!card)  in snd_card_new()
177 		card->private_data = (char *)card + sizeof(struct snd_card);  in snd_card_new()
179 		strlcpy(card->id, xid, sizeof(card->id));  in snd_card_new()
197 		kfree(card);  in snd_card_new()
204 	card->dev = parent;  in snd_card_new()
205 	card->number = idx;  in snd_card_new()
206 	card->module = module;  in snd_card_new()
207 	INIT_LIST_HEAD(&card->devices);  in snd_card_new()
208 	init_rwsem(&card->controls_rwsem);  in snd_card_new()
209 	rwlock_init(&card->ctl_files_rwlock);  in snd_card_new()
210 	INIT_LIST_HEAD(&card->controls);  in snd_card_new()
211 	INIT_LIST_HEAD(&card->ctl_files);  in snd_card_new()
212 	spin_lock_init(&card->files_lock);  in snd_card_new()
213 	INIT_LIST_HEAD(&card->files_list);  in snd_card_new()
215 	init_waitqueue_head(&card->power_sleep);  in snd_card_new()
217 	init_waitqueue_head(&card->remove_sleep);  in snd_card_new()
219 	device_initialize(&card->card_dev);  in snd_card_new()
220 	card->card_dev.parent = parent;  in snd_card_new()
221 	card->card_dev.class = sound_class;  in snd_card_new()
222 	card->card_dev.release = release_card_device;  in snd_card_new()
223 	card->card_dev.groups = card->dev_groups;  in snd_card_new()
224 	card->dev_groups[0] = &card_dev_attr_group;  in snd_card_new()
225 	err = kobject_set_name(&card->card_dev.kobj, "card%d", idx);  in snd_card_new()
229 	snprintf(card->irq_descr, sizeof(card->irq_descr), "%s:%s",  in snd_card_new()
230 		 dev_driver_string(card->dev), dev_name(&card->card_dev));  in snd_card_new()
234 	err = snd_ctl_create(card);  in snd_card_new()
239 	err = snd_info_card_create(card);  in snd_card_new()
244 	*card_ret = card;  in snd_card_new()
248 	snd_device_free_all(card);  in snd_card_new()
250 	put_device(&card->card_dev);  in snd_card_new()
264 	struct snd_card *card;  in snd_card_ref()  local
267 	card = snd_cards[idx];  in snd_card_ref()
268 	if (card)  in snd_card_ref()
269 		get_device(&card->card_dev);  in snd_card_ref()
271 	return card;  in snd_card_ref()
276 int snd_card_locked(int card)  in snd_card_locked()  argument
281 	locked = test_bit(card, snd_cards_lock);  in snd_card_locked()
374 int snd_card_disconnect(struct snd_card *card)  in snd_card_disconnect()  argument
378 	if (!card)  in snd_card_disconnect()
381 	spin_lock(&card->files_lock);  in snd_card_disconnect()
382 	if (card->shutdown) {  in snd_card_disconnect()
383 		spin_unlock(&card->files_lock);  in snd_card_disconnect()
386 	card->shutdown = 1;  in snd_card_disconnect()
387 	spin_unlock(&card->files_lock);  in snd_card_disconnect()
390 	spin_lock(&card->files_lock);  in snd_card_disconnect()
391 	list_for_each_entry(mfile, &card->files_list, list) {  in snd_card_disconnect()
403 	spin_unlock(&card->files_lock);	  in snd_card_disconnect()
410 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_DISCONNECT);  in snd_card_disconnect()
414 	snd_device_disconnect_all(card);  in snd_card_disconnect()
416 	snd_info_card_disconnect(card);  in snd_card_disconnect()
417 	if (card->registered) {  in snd_card_disconnect()
418 		device_del(&card->card_dev);  in snd_card_disconnect()
419 		card->registered = false;  in snd_card_disconnect()
424 	snd_cards[card->number] = NULL;  in snd_card_disconnect()
425 	clear_bit(card->number, snd_cards_lock);  in snd_card_disconnect()
429 	wake_up(&card->power_sleep);  in snd_card_disconnect()
444 void snd_card_disconnect_sync(struct snd_card *card)  in snd_card_disconnect_sync()  argument
448 	err = snd_card_disconnect(card);  in snd_card_disconnect_sync()
450 		dev_err(card->dev,  in snd_card_disconnect_sync()
456 	spin_lock_irq(&card->files_lock);  in snd_card_disconnect_sync()
457 	wait_event_lock_irq(card->remove_sleep,  in snd_card_disconnect_sync()
458 			    list_empty(&card->files_list),  in snd_card_disconnect_sync()
459 			    card->files_lock);  in snd_card_disconnect_sync()
460 	spin_unlock_irq(&card->files_lock);  in snd_card_disconnect_sync()
464 static int snd_card_do_free(struct snd_card *card)  in snd_card_do_free()  argument
468 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_FREE);  in snd_card_do_free()
470 	snd_device_free_all(card);  in snd_card_do_free()
471 	if (card->private_free)  in snd_card_do_free()
472 		card->private_free(card);  in snd_card_do_free()
473 	if (snd_info_card_free(card) < 0) {  in snd_card_do_free()
474 		dev_warn(card->dev, "unable to free card info\n");  in snd_card_do_free()
477 	if (card->release_completion)  in snd_card_do_free()
478 		complete(card->release_completion);  in snd_card_do_free()
479 	kfree(card);  in snd_card_do_free()
492 int snd_card_free_when_closed(struct snd_card *card)  in snd_card_free_when_closed()  argument
494 	int ret = snd_card_disconnect(card);  in snd_card_free_when_closed()
497 	put_device(&card->card_dev);  in snd_card_free_when_closed()
515 int snd_card_free(struct snd_card *card)  in snd_card_free()  argument
521 	card->release_completion = &released;  in snd_card_free()
522 	ret = snd_card_free_when_closed(card);  in snd_card_free()
545 static bool card_id_ok(struct snd_card *card, const char *id)  in card_id_ok()  argument
551 		if (snd_cards[i] && snd_cards[i] != card &&  in card_id_ok()
559 static void copy_valid_id_string(struct snd_card *card, const char *src,  in copy_valid_id_string()  argument
562 	char *id = card->id;  in copy_valid_id_string()
568 	while (*nid && (size_t)(id - card->id) < sizeof(card->id) - 1) {  in copy_valid_id_string()
579 static void snd_card_set_id_no_lock(struct snd_card *card, const char *src,  in snd_card_set_id_no_lock()  argument
586 	copy_valid_id_string(card, src, nid);  in snd_card_set_id_no_lock()
587 	id = card->id;  in snd_card_set_id_no_lock()
604 		if (card_id_ok(card, id))  in snd_card_set_id_no_lock()
610 		if (len + sfxlen >= sizeof(card->id))  in snd_card_set_id_no_lock()
611 			spos = id + sizeof(card->id) - sfxlen - 1;  in snd_card_set_id_no_lock()
622 	dev_err(card->dev, "unable to set card id (%s)\n", id);  in snd_card_set_id_no_lock()
623 	if (card->proc_root->name)  in snd_card_set_id_no_lock()
624 		strlcpy(card->id, card->proc_root->name, sizeof(card->id));  in snd_card_set_id_no_lock()
635 void snd_card_set_id(struct snd_card *card, const char *nid)  in snd_card_set_id()  argument
638 	if (card->id[0] != '\0')  in snd_card_set_id()
641 	snd_card_set_id_no_lock(card, nid, nid);  in snd_card_set_id()
650 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_id_show_attr()  local
651 	return scnprintf(buf, PAGE_SIZE, "%s\n", card->id);  in card_id_show_attr()
658 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_id_store_attr()  local
659 	char buf1[sizeof(card->id)];  in card_id_store_attr()
660 	size_t copy = count > sizeof(card->id) - 1 ?  in card_id_store_attr()
661 					sizeof(card->id) - 1 : count;  in card_id_store_attr()
677 	strcpy(card->id, buf1);  in card_id_store_attr()
678 	snd_info_card_id_change(card);  in card_id_store_attr()
690 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_number_show_attr()  local
691 	return scnprintf(buf, PAGE_SIZE, "%i\n", card->number);  in card_number_show_attr()
711 int snd_card_add_dev_attr(struct snd_card *card,  in snd_card_add_dev_attr()  argument
717 	for (i = 0; i < ARRAY_SIZE(card->dev_groups) - 1; i++) {  in snd_card_add_dev_attr()
718 		if (!card->dev_groups[i]) {  in snd_card_add_dev_attr()
719 			card->dev_groups[i] = group;  in snd_card_add_dev_attr()
724 	dev_err(card->dev, "Too many groups assigned\n");  in snd_card_add_dev_attr()
740 int snd_card_register(struct snd_card *card)  in snd_card_register()  argument
744 	if (snd_BUG_ON(!card))  in snd_card_register()
747 	if (!card->registered) {  in snd_card_register()
748 		err = device_add(&card->card_dev);  in snd_card_register()
751 		card->registered = true;  in snd_card_register()
754 	if ((err = snd_device_register_all(card)) < 0)  in snd_card_register()
757 	if (snd_cards[card->number]) {  in snd_card_register()
760 		return snd_info_card_register(card); /* register pending info */  in snd_card_register()
762 	if (*card->id) {  in snd_card_register()
764 		char tmpid[sizeof(card->id)];  in snd_card_register()
765 		memcpy(tmpid, card->id, sizeof(card->id));  in snd_card_register()
766 		snd_card_set_id_no_lock(card, tmpid, tmpid);  in snd_card_register()
770 		src = *card->shortname ? card->shortname : card->longname;  in snd_card_register()
771 		snd_card_set_id_no_lock(card, src,  in snd_card_register()
774 	snd_cards[card->number] = card;  in snd_card_register()
776 	err = snd_info_card_register(card);  in snd_card_register()
782 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER);  in snd_card_register()
793 	struct snd_card *card;  in snd_card_info_read()  local
797 		if ((card = snd_cards[idx]) != NULL) {  in snd_card_info_read()
801 					card->id,  in snd_card_info_read()
802 					card->driver,  in snd_card_info_read()
803 					card->shortname);  in snd_card_info_read()
805 					card->longname);  in snd_card_info_read()
817 	struct snd_card *card;  in snd_card_info_read_oss()  local
821 		if ((card = snd_cards[idx]) != NULL) {  in snd_card_info_read_oss()
823 			snd_iprintf(buffer, "%s\n", card->longname);  in snd_card_info_read_oss()
839 	struct snd_card *card;  in snd_card_module_info_read()  local
843 		if ((card = snd_cards[idx]) != NULL)  in snd_card_module_info_read()
845 				    idx, card->module->name);  in snd_card_module_info_read()
886 int snd_component_add(struct snd_card *card, const char *component)  in snd_component_add()  argument
891 	ptr = strstr(card->components, component);  in snd_component_add()
896 	if (strlen(card->components) + 1 + len + 1 > sizeof(card->components)) {  in snd_component_add()
900 	if (card->components[0] != '\0')  in snd_component_add()
901 		strcat(card->components, " ");  in snd_component_add()
902 	strcat(card->components, component);  in snd_component_add()
918 int snd_card_file_add(struct snd_card *card, struct file *file)  in snd_card_file_add()  argument
928 	spin_lock(&card->files_lock);  in snd_card_file_add()
929 	if (card->shutdown) {  in snd_card_file_add()
930 		spin_unlock(&card->files_lock);  in snd_card_file_add()
934 	list_add(&mfile->list, &card->files_list);  in snd_card_file_add()
935 	get_device(&card->card_dev);  in snd_card_file_add()
936 	spin_unlock(&card->files_lock);  in snd_card_file_add()
954 int snd_card_file_remove(struct snd_card *card, struct file *file)  in snd_card_file_remove()  argument
958 	spin_lock(&card->files_lock);  in snd_card_file_remove()
959 	list_for_each_entry(mfile, &card->files_list, list) {  in snd_card_file_remove()
971 	if (list_empty(&card->files_list))  in snd_card_file_remove()
972 		wake_up_all(&card->remove_sleep);  in snd_card_file_remove()
973 	spin_unlock(&card->files_lock);  in snd_card_file_remove()
975 		dev_err(card->dev, "card file remove problem (%p)\n", file);  in snd_card_file_remove()
979 	put_device(&card->card_dev);  in snd_card_file_remove()
994 int snd_power_wait(struct snd_card *card, unsigned int power_state)  in snd_power_wait()  argument
1000 	if (snd_power_get_state(card) == power_state)  in snd_power_wait()
1003 	add_wait_queue(&card->power_sleep, &wait);  in snd_power_wait()
1005 		if (card->shutdown) {  in snd_power_wait()
1009 		if (snd_power_get_state(card) == power_state)  in snd_power_wait()
1014 	remove_wait_queue(&card->power_sleep, &wait);  in snd_power_wait()