84 int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int free_flag);
126 void snd_device_initialize(struct device *dev, struct snd_card *card)  in snd_device_initialize()  argument
129 	if (card)  in snd_device_initialize()
130 		dev->parent = &card->card_dev;  in snd_device_initialize()
136 static int snd_card_do_free(struct snd_card *card);
165 	struct snd_card *card;  in snd_card_new()  local
174 	card = kzalloc(sizeof(*card) + extra_size, GFP_KERNEL);  in snd_card_new()
175 	if (!card)  in snd_card_new()
178 		card->private_data = (char *)card + sizeof(struct snd_card);  in snd_card_new()
180 		strlcpy(card->id, xid, sizeof(card->id));  in snd_card_new()
198 		kfree(card);  in snd_card_new()
205 	card->dev = parent;  in snd_card_new()
206 	card->number = idx;  in snd_card_new()
209 	card->module = module;  in snd_card_new()
211 	INIT_LIST_HEAD(&card->devices);  in snd_card_new()
212 	init_rwsem(&card->controls_rwsem);  in snd_card_new()
213 	rwlock_init(&card->ctl_files_rwlock);  in snd_card_new()
214 	INIT_LIST_HEAD(&card->controls);  in snd_card_new()
215 	INIT_LIST_HEAD(&card->ctl_files);  in snd_card_new()
216 	spin_lock_init(&card->files_lock);  in snd_card_new()
217 	INIT_LIST_HEAD(&card->files_list);  in snd_card_new()
218 	mutex_init(&card->memory_mutex);  in snd_card_new()
220 	init_waitqueue_head(&card->power_sleep);  in snd_card_new()
222 	init_waitqueue_head(&card->remove_sleep);  in snd_card_new()
223 	card->sync_irq = -1;  in snd_card_new()
225 	device_initialize(&card->card_dev);  in snd_card_new()
226 	card->card_dev.parent = parent;  in snd_card_new()
227 	card->card_dev.class = sound_class;  in snd_card_new()
228 	card->card_dev.release = release_card_device;  in snd_card_new()
229 	card->card_dev.groups = card->dev_groups;  in snd_card_new()
230 	card->dev_groups[0] = &card_dev_attr_group;  in snd_card_new()
231 	err = kobject_set_name(&card->card_dev.kobj, "card%d", idx);  in snd_card_new()
235 	snprintf(card->irq_descr, sizeof(card->irq_descr), "%s:%s",  in snd_card_new()
236 		 dev_driver_string(card->dev), dev_name(&card->card_dev));  in snd_card_new()
240 	err = snd_ctl_create(card);  in snd_card_new()
245 	err = snd_info_card_create(card);  in snd_card_new()
250 	*card_ret = card;  in snd_card_new()
254 	snd_device_free_all(card);  in snd_card_new()
256 	put_device(&card->card_dev);  in snd_card_new()
270 	struct snd_card *card;  in snd_card_ref()  local
273 	card = snd_cards[idx];  in snd_card_ref()
274 	if (card)  in snd_card_ref()
275 		get_device(&card->card_dev);  in snd_card_ref()
277 	return card;  in snd_card_ref()
282 int snd_card_locked(int card)  in snd_card_locked()  argument
287 	locked = test_bit(card, snd_cards_lock);  in snd_card_locked()
380 int snd_card_disconnect(struct snd_card *card)  in snd_card_disconnect()  argument
384 	if (!card)  in snd_card_disconnect()
387 	spin_lock(&card->files_lock);  in snd_card_disconnect()
388 	if (card->shutdown) {  in snd_card_disconnect()
389 		spin_unlock(&card->files_lock);  in snd_card_disconnect()
392 	card->shutdown = 1;  in snd_card_disconnect()
395 	list_for_each_entry(mfile, &card->files_list, list) {  in snd_card_disconnect()
407 	spin_unlock(&card->files_lock);	  in snd_card_disconnect()
414 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_DISCONNECT);  in snd_card_disconnect()
418 	snd_device_disconnect_all(card);  in snd_card_disconnect()
420 	if (card->sync_irq > 0)  in snd_card_disconnect()
421 		synchronize_irq(card->sync_irq);  in snd_card_disconnect()
423 	snd_info_card_disconnect(card);  in snd_card_disconnect()
424 	if (card->registered) {  in snd_card_disconnect()
425 		device_del(&card->card_dev);  in snd_card_disconnect()
426 		card->registered = false;  in snd_card_disconnect()
431 	snd_cards[card->number] = NULL;  in snd_card_disconnect()
432 	clear_bit(card->number, snd_cards_lock);  in snd_card_disconnect()
436 	wake_up(&card->power_sleep);  in snd_card_disconnect()
451 void snd_card_disconnect_sync(struct snd_card *card)  in snd_card_disconnect_sync()  argument
455 	err = snd_card_disconnect(card);  in snd_card_disconnect_sync()
457 		dev_err(card->dev,  in snd_card_disconnect_sync()
463 	spin_lock_irq(&card->files_lock);  in snd_card_disconnect_sync()
464 	wait_event_lock_irq(card->remove_sleep,  in snd_card_disconnect_sync()
465 			    list_empty(&card->files_list),  in snd_card_disconnect_sync()
466 			    card->files_lock);  in snd_card_disconnect_sync()
467 	spin_unlock_irq(&card->files_lock);  in snd_card_disconnect_sync()
471 static int snd_card_do_free(struct snd_card *card)  in snd_card_do_free()  argument
475 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_FREE);  in snd_card_do_free()
477 	snd_device_free_all(card);  in snd_card_do_free()
478 	if (card->private_free)  in snd_card_do_free()
479 		card->private_free(card);  in snd_card_do_free()
480 	if (snd_info_card_free(card) < 0) {  in snd_card_do_free()
481 		dev_warn(card->dev, "unable to free card info\n");  in snd_card_do_free()
484 	if (card->release_completion)  in snd_card_do_free()
485 		complete(card->release_completion);  in snd_card_do_free()
486 	kfree(card);  in snd_card_do_free()
499 int snd_card_free_when_closed(struct snd_card *card)  in snd_card_free_when_closed()  argument
501 	int ret = snd_card_disconnect(card);  in snd_card_free_when_closed()
504 	put_device(&card->card_dev);  in snd_card_free_when_closed()
522 int snd_card_free(struct snd_card *card)  in snd_card_free()  argument
527 	card->release_completion = &released;  in snd_card_free()
528 	ret = snd_card_free_when_closed(card);  in snd_card_free()
551 static bool card_id_ok(struct snd_card *card, const char *id)  in card_id_ok()  argument
557 		if (snd_cards[i] && snd_cards[i] != card &&  in card_id_ok()
565 static void copy_valid_id_string(struct snd_card *card, const char *src,  in copy_valid_id_string()  argument
568 	char *id = card->id;  in copy_valid_id_string()
574 	while (*nid && (size_t)(id - card->id) < sizeof(card->id) - 1) {  in copy_valid_id_string()
585 static void snd_card_set_id_no_lock(struct snd_card *card, const char *src,  in snd_card_set_id_no_lock()  argument
592 	copy_valid_id_string(card, src, nid);  in snd_card_set_id_no_lock()
593 	id = card->id;  in snd_card_set_id_no_lock()
610 		if (card_id_ok(card, id))  in snd_card_set_id_no_lock()
616 		if (len + sfxlen >= sizeof(card->id))  in snd_card_set_id_no_lock()
617 			spos = id + sizeof(card->id) - sfxlen - 1;  in snd_card_set_id_no_lock()
628 	dev_err(card->dev, "unable to set card id (%s)\n", id);  in snd_card_set_id_no_lock()
629 	if (card->proc_root->name)  in snd_card_set_id_no_lock()
630 		strlcpy(card->id, card->proc_root->name, sizeof(card->id));  in snd_card_set_id_no_lock()
641 void snd_card_set_id(struct snd_card *card, const char *nid)  in snd_card_set_id()  argument
644 	if (card->id[0] != '\0')  in snd_card_set_id()
647 	snd_card_set_id_no_lock(card, nid, nid);  in snd_card_set_id()
656 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_id_show_attr()  local
657 	return scnprintf(buf, PAGE_SIZE, "%s\n", card->id);  in card_id_show_attr()
664 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_id_store_attr()  local
665 	char buf1[sizeof(card->id)];  in card_id_store_attr()
666 	size_t copy = count > sizeof(card->id) - 1 ?  in card_id_store_attr()
667 					sizeof(card->id) - 1 : count;  in card_id_store_attr()
683 	strcpy(card->id, buf1);  in card_id_store_attr()
684 	snd_info_card_id_change(card);  in card_id_store_attr()
696 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_number_show_attr()  local
697 	return scnprintf(buf, PAGE_SIZE, "%i\n", card->number);  in card_number_show_attr()
717 int snd_card_add_dev_attr(struct snd_card *card,  in snd_card_add_dev_attr()  argument
723 	for (i = 0; i < ARRAY_SIZE(card->dev_groups) - 1; i++) {  in snd_card_add_dev_attr()
724 		if (!card->dev_groups[i]) {  in snd_card_add_dev_attr()
725 			card->dev_groups[i] = group;  in snd_card_add_dev_attr()
730 	dev_err(card->dev, "Too many groups assigned\n");  in snd_card_add_dev_attr()
746 int snd_card_register(struct snd_card *card)  in snd_card_register()  argument
750 	if (snd_BUG_ON(!card))  in snd_card_register()
753 	if (!card->registered) {  in snd_card_register()
754 		err = device_add(&card->card_dev);  in snd_card_register()
757 		card->registered = true;  in snd_card_register()
760 	if ((err = snd_device_register_all(card)) < 0)  in snd_card_register()
763 	if (snd_cards[card->number]) {  in snd_card_register()
766 		return snd_info_card_register(card); /* register pending info */  in snd_card_register()
768 	if (*card->id) {  in snd_card_register()
770 		char tmpid[sizeof(card->id)];  in snd_card_register()
771 		memcpy(tmpid, card->id, sizeof(card->id));  in snd_card_register()
772 		snd_card_set_id_no_lock(card, tmpid, tmpid);  in snd_card_register()
776 		src = *card->shortname ? card->shortname : card->longname;  in snd_card_register()
777 		snd_card_set_id_no_lock(card, src,  in snd_card_register()
780 	snd_cards[card->number] = card;  in snd_card_register()
782 	err = snd_info_card_register(card);  in snd_card_register()
788 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER);  in snd_card_register()
799 	struct snd_card *card;  in snd_card_info_read()  local
803 		if ((card = snd_cards[idx]) != NULL) {  in snd_card_info_read()
807 					card->id,  in snd_card_info_read()
808 					card->driver,  in snd_card_info_read()
809 					card->shortname);  in snd_card_info_read()
811 					card->longname);  in snd_card_info_read()
823 	struct snd_card *card;  in snd_card_info_read_oss()  local
827 		if ((card = snd_cards[idx]) != NULL) {  in snd_card_info_read_oss()
829 			snd_iprintf(buffer, "%s\n", card->longname);  in snd_card_info_read_oss()
845 	struct snd_card *card;  in snd_card_module_info_read()  local
849 		if ((card = snd_cards[idx]) != NULL)  in snd_card_module_info_read()
851 				    idx, card->module->name);  in snd_card_module_info_read()
892 int snd_component_add(struct snd_card *card, const char *component)  in snd_component_add()  argument
897 	ptr = strstr(card->components, component);  in snd_component_add()
902 	if (strlen(card->components) + 1 + len + 1 > sizeof(card->components)) {  in snd_component_add()
906 	if (card->components[0] != '\0')  in snd_component_add()
907 		strcat(card->components, " ");  in snd_component_add()
908 	strcat(card->components, component);  in snd_component_add()
924 int snd_card_file_add(struct snd_card *card, struct file *file)  in snd_card_file_add()  argument
934 	spin_lock(&card->files_lock);  in snd_card_file_add()
935 	if (card->shutdown) {  in snd_card_file_add()
936 		spin_unlock(&card->files_lock);  in snd_card_file_add()
940 	list_add(&mfile->list, &card->files_list);  in snd_card_file_add()
941 	get_device(&card->card_dev);  in snd_card_file_add()
942 	spin_unlock(&card->files_lock);  in snd_card_file_add()
960 int snd_card_file_remove(struct snd_card *card, struct file *file)  in snd_card_file_remove()  argument
964 	spin_lock(&card->files_lock);  in snd_card_file_remove()
965 	list_for_each_entry(mfile, &card->files_list, list) {  in snd_card_file_remove()
977 	if (list_empty(&card->files_list))  in snd_card_file_remove()
978 		wake_up_all(&card->remove_sleep);  in snd_card_file_remove()
979 	spin_unlock(&card->files_lock);  in snd_card_file_remove()
981 		dev_err(card->dev, "card file remove problem (%p)\n", file);  in snd_card_file_remove()
985 	put_device(&card->card_dev);  in snd_card_file_remove()
1000 int snd_power_wait(struct snd_card *card, unsigned int power_state)  in snd_power_wait()  argument
1006 	if (snd_power_get_state(card) == power_state)  in snd_power_wait()
1009 	add_wait_queue(&card->power_sleep, &wait);  in snd_power_wait()
1011 		if (card->shutdown) {  in snd_power_wait()
1015 		if (snd_power_get_state(card) == power_state)  in snd_power_wait()
1020 	remove_wait_queue(&card->power_sleep, &wait);  in snd_power_wait()