99 int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int free_flag);
107 	snd_iprintf(buffer, "%s\n", entry->card->id);  in snd_card_id_read()
110 static int init_info_for_card(struct snd_card *card)  in init_info_for_card()  argument
114 	entry = snd_info_create_card_entry(card, "id", card->proc_root);  in init_info_for_card()
116 		dev_dbg(card->dev, "unable to create card entry\n");  in init_info_for_card()
120 	card->proc_id = entry;  in init_info_for_card()
122 	return snd_info_card_register(card);  in init_info_for_card()
125 #define init_info_for_card(card)  argument
166 void snd_device_initialize(struct device *dev, struct snd_card *card)  in snd_device_initialize()  argument
169 	if (card)  in snd_device_initialize()
170 		dev->parent = &card->card_dev;  in snd_device_initialize()
176 static int snd_card_do_free(struct snd_card *card);
205 	struct snd_card *card;  in snd_card_new()  local
214 	card = kzalloc(sizeof(*card) + extra_size, GFP_KERNEL);  in snd_card_new()
215 	if (!card)  in snd_card_new()
218 		card->private_data = (char *)card + sizeof(struct snd_card);  in snd_card_new()
220 		strlcpy(card->id, xid, sizeof(card->id));  in snd_card_new()
238 		kfree(card);  in snd_card_new()
245 	card->dev = parent;  in snd_card_new()
246 	card->number = idx;  in snd_card_new()
247 	card->module = module;  in snd_card_new()
248 	INIT_LIST_HEAD(&card->devices);  in snd_card_new()
249 	init_rwsem(&card->controls_rwsem);  in snd_card_new()
250 	rwlock_init(&card->ctl_files_rwlock);  in snd_card_new()
251 	INIT_LIST_HEAD(&card->controls);  in snd_card_new()
252 	INIT_LIST_HEAD(&card->ctl_files);  in snd_card_new()
253 	spin_lock_init(&card->files_lock);  in snd_card_new()
254 	INIT_LIST_HEAD(&card->files_list);  in snd_card_new()
256 	init_waitqueue_head(&card->power_sleep);  in snd_card_new()
258 	init_waitqueue_head(&card->remove_sleep);  in snd_card_new()
260 	device_initialize(&card->card_dev);  in snd_card_new()
261 	card->card_dev.parent = parent;  in snd_card_new()
262 	card->card_dev.class = sound_class;  in snd_card_new()
263 	card->card_dev.release = release_card_device;  in snd_card_new()
264 	card->card_dev.groups = card->dev_groups;  in snd_card_new()
265 	card->dev_groups[0] = &card_dev_attr_group;  in snd_card_new()
266 	err = kobject_set_name(&card->card_dev.kobj, "card%d", idx);  in snd_card_new()
270 	snprintf(card->irq_descr, sizeof(card->irq_descr), "%s:%s",  in snd_card_new()
271 		 dev_driver_string(card->dev), dev_name(&card->card_dev));  in snd_card_new()
275 	err = snd_ctl_create(card);  in snd_card_new()
280 	err = snd_info_card_create(card);  in snd_card_new()
285 	*card_ret = card;  in snd_card_new()
289 	snd_device_free_all(card);  in snd_card_new()
291 	put_device(&card->card_dev);  in snd_card_new()
297 int snd_card_locked(int card)  in snd_card_locked()  argument
302 	locked = test_bit(card, snd_cards_lock);  in snd_card_locked()
395 int snd_card_disconnect(struct snd_card *card)  in snd_card_disconnect()  argument
399 	if (!card)  in snd_card_disconnect()
402 	spin_lock(&card->files_lock);  in snd_card_disconnect()
403 	if (card->shutdown) {  in snd_card_disconnect()
404 		spin_unlock(&card->files_lock);  in snd_card_disconnect()
407 	card->shutdown = 1;  in snd_card_disconnect()
408 	spin_unlock(&card->files_lock);  in snd_card_disconnect()
412 	snd_cards[card->number] = NULL;  in snd_card_disconnect()
413 	clear_bit(card->number, snd_cards_lock);  in snd_card_disconnect()
418 	spin_lock(&card->files_lock);  in snd_card_disconnect()
419 	list_for_each_entry(mfile, &card->files_list, list) {  in snd_card_disconnect()
431 	spin_unlock(&card->files_lock);	  in snd_card_disconnect()
438 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_DISCONNECT);  in snd_card_disconnect()
442 	snd_device_disconnect_all(card);  in snd_card_disconnect()
444 	snd_info_card_disconnect(card);  in snd_card_disconnect()
445 	if (card->registered) {  in snd_card_disconnect()
446 		device_del(&card->card_dev);  in snd_card_disconnect()
447 		card->registered = false;  in snd_card_disconnect()
450 	wake_up(&card->power_sleep);  in snd_card_disconnect()
465 void snd_card_disconnect_sync(struct snd_card *card)  in snd_card_disconnect_sync()  argument
469 	err = snd_card_disconnect(card);  in snd_card_disconnect_sync()
471 		dev_err(card->dev,  in snd_card_disconnect_sync()
477 	spin_lock_irq(&card->files_lock);  in snd_card_disconnect_sync()
478 	wait_event_lock_irq(card->remove_sleep,  in snd_card_disconnect_sync()
479 			    list_empty(&card->files_list),  in snd_card_disconnect_sync()
480 			    card->files_lock);  in snd_card_disconnect_sync()
481 	spin_unlock_irq(&card->files_lock);  in snd_card_disconnect_sync()
485 static int snd_card_do_free(struct snd_card *card)  in snd_card_do_free()  argument
489 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_FREE);  in snd_card_do_free()
491 	snd_device_free_all(card);  in snd_card_do_free()
492 	if (card->private_free)  in snd_card_do_free()
493 		card->private_free(card);  in snd_card_do_free()
494 	snd_info_free_entry(card->proc_id);  in snd_card_do_free()
495 	if (snd_info_card_free(card) < 0) {  in snd_card_do_free()
496 		dev_warn(card->dev, "unable to free card info\n");  in snd_card_do_free()
499 	if (card->release_completion)  in snd_card_do_free()
500 		complete(card->release_completion);  in snd_card_do_free()
501 	kfree(card);  in snd_card_do_free()
514 int snd_card_free_when_closed(struct snd_card *card)  in snd_card_free_when_closed()  argument
516 	int ret = snd_card_disconnect(card);  in snd_card_free_when_closed()
519 	put_device(&card->card_dev);  in snd_card_free_when_closed()
537 int snd_card_free(struct snd_card *card)  in snd_card_free()  argument
543 	card->release_completion = &released;  in snd_card_free()
544 	ret = snd_card_free_when_closed(card);  in snd_card_free()
567 static bool card_id_ok(struct snd_card *card, const char *id)  in card_id_ok()  argument
573 		if (snd_cards[i] && snd_cards[i] != card &&  in card_id_ok()
581 static void copy_valid_id_string(struct snd_card *card, const char *src,  in copy_valid_id_string()  argument
584 	char *id = card->id;  in copy_valid_id_string()
590 	while (*nid && (size_t)(id - card->id) < sizeof(card->id) - 1) {  in copy_valid_id_string()
601 static void snd_card_set_id_no_lock(struct snd_card *card, const char *src,  in snd_card_set_id_no_lock()  argument
608 	copy_valid_id_string(card, src, nid);  in snd_card_set_id_no_lock()
609 	id = card->id;  in snd_card_set_id_no_lock()
626 		if (card_id_ok(card, id))  in snd_card_set_id_no_lock()
632 		if (len + sfxlen >= sizeof(card->id))  in snd_card_set_id_no_lock()
633 			spos = id + sizeof(card->id) - sfxlen - 1;  in snd_card_set_id_no_lock()
644 	dev_err(card->dev, "unable to set card id (%s)\n", id);  in snd_card_set_id_no_lock()
645 	if (card->proc_root->name)  in snd_card_set_id_no_lock()
646 		strlcpy(card->id, card->proc_root->name, sizeof(card->id));  in snd_card_set_id_no_lock()
657 void snd_card_set_id(struct snd_card *card, const char *nid)  in snd_card_set_id()  argument
660 	if (card->id[0] != '\0')  in snd_card_set_id()
663 	snd_card_set_id_no_lock(card, nid, nid);  in snd_card_set_id()
672 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_id_show_attr()  local
673 	return scnprintf(buf, PAGE_SIZE, "%s\n", card->id);  in card_id_show_attr()
680 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_id_store_attr()  local
681 	char buf1[sizeof(card->id)];  in card_id_store_attr()
682 	size_t copy = count > sizeof(card->id) - 1 ?  in card_id_store_attr()
683 					sizeof(card->id) - 1 : count;  in card_id_store_attr()
699 	strcpy(card->id, buf1);  in card_id_store_attr()
700 	snd_info_card_id_change(card);  in card_id_store_attr()
712 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_number_show_attr()  local
713 	return scnprintf(buf, PAGE_SIZE, "%i\n", card->number);  in card_number_show_attr()
733 int snd_card_add_dev_attr(struct snd_card *card,  in snd_card_add_dev_attr()  argument
739 	for (i = 0; i < ARRAY_SIZE(card->dev_groups) - 1; i++) {  in snd_card_add_dev_attr()
740 		if (!card->dev_groups[i]) {  in snd_card_add_dev_attr()
741 			card->dev_groups[i] = group;  in snd_card_add_dev_attr()
746 	dev_err(card->dev, "Too many groups assigned\n");  in snd_card_add_dev_attr()
762 int snd_card_register(struct snd_card *card)  in snd_card_register()  argument
766 	if (snd_BUG_ON(!card))  in snd_card_register()
769 	if (!card->registered) {  in snd_card_register()
770 		err = device_add(&card->card_dev);  in snd_card_register()
773 		card->registered = true;  in snd_card_register()
776 	if ((err = snd_device_register_all(card)) < 0)  in snd_card_register()
779 	if (snd_cards[card->number]) {  in snd_card_register()
782 		return snd_info_card_register(card); /* register pending info */  in snd_card_register()
784 	if (*card->id) {  in snd_card_register()
786 		char tmpid[sizeof(card->id)];  in snd_card_register()
787 		memcpy(tmpid, card->id, sizeof(card->id));  in snd_card_register()
788 		snd_card_set_id_no_lock(card, tmpid, tmpid);  in snd_card_register()
792 		src = *card->shortname ? card->shortname : card->longname;  in snd_card_register()
793 		snd_card_set_id_no_lock(card, src,  in snd_card_register()
796 	snd_cards[card->number] = card;  in snd_card_register()
798 	init_info_for_card(card);  in snd_card_register()
801 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER);  in snd_card_register()
812 	struct snd_card *card;  in snd_card_info_read()  local
816 		if ((card = snd_cards[idx]) != NULL) {  in snd_card_info_read()
820 					card->id,  in snd_card_info_read()
821 					card->driver,  in snd_card_info_read()
822 					card->shortname);  in snd_card_info_read()
824 					card->longname);  in snd_card_info_read()
836 	struct snd_card *card;  in snd_card_info_read_oss()  local
840 		if ((card = snd_cards[idx]) != NULL) {  in snd_card_info_read_oss()
842 			snd_iprintf(buffer, "%s\n", card->longname);  in snd_card_info_read_oss()
858 	struct snd_card *card;  in snd_card_module_info_read()  local
862 		if ((card = snd_cards[idx]) != NULL)  in snd_card_module_info_read()
864 				    idx, card->module->name);  in snd_card_module_info_read()
905 int snd_component_add(struct snd_card *card, const char *component)  in snd_component_add()  argument
910 	ptr = strstr(card->components, component);  in snd_component_add()
915 	if (strlen(card->components) + 1 + len + 1 > sizeof(card->components)) {  in snd_component_add()
919 	if (card->components[0] != '\0')  in snd_component_add()
920 		strcat(card->components, " ");  in snd_component_add()
921 	strcat(card->components, component);  in snd_component_add()
937 int snd_card_file_add(struct snd_card *card, struct file *file)  in snd_card_file_add()  argument
947 	spin_lock(&card->files_lock);  in snd_card_file_add()
948 	if (card->shutdown) {  in snd_card_file_add()
949 		spin_unlock(&card->files_lock);  in snd_card_file_add()
953 	list_add(&mfile->list, &card->files_list);  in snd_card_file_add()
954 	get_device(&card->card_dev);  in snd_card_file_add()
955 	spin_unlock(&card->files_lock);  in snd_card_file_add()
973 int snd_card_file_remove(struct snd_card *card, struct file *file)  in snd_card_file_remove()  argument
977 	spin_lock(&card->files_lock);  in snd_card_file_remove()
978 	list_for_each_entry(mfile, &card->files_list, list) {  in snd_card_file_remove()
990 	if (list_empty(&card->files_list))  in snd_card_file_remove()
991 		wake_up_all(&card->remove_sleep);  in snd_card_file_remove()
992 	spin_unlock(&card->files_lock);  in snd_card_file_remove()
994 		dev_err(card->dev, "card file remove problem (%p)\n", file);  in snd_card_file_remove()
998 	put_device(&card->card_dev);  in snd_card_file_remove()
1013 int snd_power_wait(struct snd_card *card, unsigned int power_state)  in snd_power_wait()  argument
1019 	if (snd_power_get_state(card) == power_state)  in snd_power_wait()
1022 	add_wait_queue(&card->power_sleep, &wait);  in snd_power_wait()
1024 		if (card->shutdown) {  in snd_power_wait()
1028 		if (snd_power_get_state(card) == power_state)  in snd_power_wait()
1033 	remove_wait_queue(&card->power_sleep, &wait);  in snd_power_wait()