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 	mutex_init(&card->user_ctl_lock);  in snd_card_new()
252 	INIT_LIST_HEAD(&card->controls);  in snd_card_new()
253 	INIT_LIST_HEAD(&card->ctl_files);  in snd_card_new()
254 	spin_lock_init(&card->files_lock);  in snd_card_new()
255 	INIT_LIST_HEAD(&card->files_list);  in snd_card_new()
257 	mutex_init(&card->power_lock);  in snd_card_new()
258 	init_waitqueue_head(&card->power_sleep);  in snd_card_new()
261 	device_initialize(&card->card_dev);  in snd_card_new()
262 	card->card_dev.parent = parent;  in snd_card_new()
263 	card->card_dev.class = sound_class;  in snd_card_new()
264 	card->card_dev.release = release_card_device;  in snd_card_new()
265 	card->card_dev.groups = card->dev_groups;  in snd_card_new()
266 	card->dev_groups[0] = &card_dev_attr_group;  in snd_card_new()
267 	err = kobject_set_name(&card->card_dev.kobj, "card%d", idx);  in snd_card_new()
273 	err = snd_ctl_create(card);  in snd_card_new()
278 	err = snd_info_card_create(card);  in snd_card_new()
283 	*card_ret = card;  in snd_card_new()
287 	snd_device_free_all(card);  in snd_card_new()
289 	put_device(&card->card_dev);  in snd_card_new()
295 int snd_card_locked(int card)  in snd_card_locked()  argument
300 	locked = test_bit(card, snd_cards_lock);  in snd_card_locked()
393 int snd_card_disconnect(struct snd_card *card)  in snd_card_disconnect()  argument
397 	if (!card)  in snd_card_disconnect()
400 	spin_lock(&card->files_lock);  in snd_card_disconnect()
401 	if (card->shutdown) {  in snd_card_disconnect()
402 		spin_unlock(&card->files_lock);  in snd_card_disconnect()
405 	card->shutdown = 1;  in snd_card_disconnect()
406 	spin_unlock(&card->files_lock);  in snd_card_disconnect()
410 	snd_cards[card->number] = NULL;  in snd_card_disconnect()
411 	clear_bit(card->number, snd_cards_lock);  in snd_card_disconnect()
416 	spin_lock(&card->files_lock);  in snd_card_disconnect()
417 	list_for_each_entry(mfile, &card->files_list, list) {  in snd_card_disconnect()
429 	spin_unlock(&card->files_lock);	  in snd_card_disconnect()
436 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_DISCONNECT);  in snd_card_disconnect()
440 	snd_device_disconnect_all(card);  in snd_card_disconnect()
442 	snd_info_card_disconnect(card);  in snd_card_disconnect()
443 	if (card->registered) {  in snd_card_disconnect()
444 		device_del(&card->card_dev);  in snd_card_disconnect()
445 		card->registered = false;  in snd_card_disconnect()
448 	wake_up(&card->power_sleep);  in snd_card_disconnect()
455 static int snd_card_do_free(struct snd_card *card)  in snd_card_do_free()  argument
459 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_FREE);  in snd_card_do_free()
461 	snd_device_free_all(card);  in snd_card_do_free()
462 	if (card->private_free)  in snd_card_do_free()
463 		card->private_free(card);  in snd_card_do_free()
464 	snd_info_free_entry(card->proc_id);  in snd_card_do_free()
465 	if (snd_info_card_free(card) < 0) {  in snd_card_do_free()
466 		dev_warn(card->dev, "unable to free card info\n");  in snd_card_do_free()
469 	if (card->release_completion)  in snd_card_do_free()
470 		complete(card->release_completion);  in snd_card_do_free()
471 	kfree(card);  in snd_card_do_free()
484 int snd_card_free_when_closed(struct snd_card *card)  in snd_card_free_when_closed()  argument
486 	int ret = snd_card_disconnect(card);  in snd_card_free_when_closed()
489 	put_device(&card->card_dev);  in snd_card_free_when_closed()
507 int snd_card_free(struct snd_card *card)  in snd_card_free()  argument
513 	card->release_completion = &released;  in snd_card_free()
514 	ret = snd_card_free_when_closed(card);  in snd_card_free()
537 static bool card_id_ok(struct snd_card *card, const char *id)  in card_id_ok()  argument
543 		if (snd_cards[i] && snd_cards[i] != card &&  in card_id_ok()
551 static void copy_valid_id_string(struct snd_card *card, const char *src,  in copy_valid_id_string()  argument
554 	char *id = card->id;  in copy_valid_id_string()
560 	while (*nid && (size_t)(id - card->id) < sizeof(card->id) - 1) {  in copy_valid_id_string()
571 static void snd_card_set_id_no_lock(struct snd_card *card, const char *src,  in snd_card_set_id_no_lock()  argument
578 	copy_valid_id_string(card, src, nid);  in snd_card_set_id_no_lock()
579 	id = card->id;  in snd_card_set_id_no_lock()
596 		if (card_id_ok(card, id))  in snd_card_set_id_no_lock()
602 		if (len + sfxlen >= sizeof(card->id))  in snd_card_set_id_no_lock()
603 			spos = id + sizeof(card->id) - sfxlen - 1;  in snd_card_set_id_no_lock()
614 	dev_err(card->dev, "unable to set card id (%s)\n", id);  in snd_card_set_id_no_lock()
615 	if (card->proc_root->name)  in snd_card_set_id_no_lock()
616 		strlcpy(card->id, card->proc_root->name, sizeof(card->id));  in snd_card_set_id_no_lock()
627 void snd_card_set_id(struct snd_card *card, const char *nid)  in snd_card_set_id()  argument
630 	if (card->id[0] != '\0')  in snd_card_set_id()
633 	snd_card_set_id_no_lock(card, nid, nid);  in snd_card_set_id()
642 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_id_show_attr()  local
643 	return snprintf(buf, PAGE_SIZE, "%s\n", card->id);  in card_id_show_attr()
650 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_id_store_attr()  local
651 	char buf1[sizeof(card->id)];  in card_id_store_attr()
652 	size_t copy = count > sizeof(card->id) - 1 ?  in card_id_store_attr()
653 					sizeof(card->id) - 1 : count;  in card_id_store_attr()
669 	strcpy(card->id, buf1);  in card_id_store_attr()
670 	snd_info_card_id_change(card);  in card_id_store_attr()
682 	struct snd_card *card = container_of(dev, struct snd_card, card_dev);  in card_number_show_attr()  local
683 	return snprintf(buf, PAGE_SIZE, "%i\n", card->number);  in card_number_show_attr()
703 int snd_card_add_dev_attr(struct snd_card *card,  in snd_card_add_dev_attr()  argument
709 	for (i = 0; i < ARRAY_SIZE(card->dev_groups) - 1; i++) {  in snd_card_add_dev_attr()
710 		if (!card->dev_groups[i]) {  in snd_card_add_dev_attr()
711 			card->dev_groups[i] = group;  in snd_card_add_dev_attr()
716 	dev_err(card->dev, "Too many groups assigned\n");  in snd_card_add_dev_attr()
732 int snd_card_register(struct snd_card *card)  in snd_card_register()  argument
736 	if (snd_BUG_ON(!card))  in snd_card_register()
739 	if (!card->registered) {  in snd_card_register()
740 		err = device_add(&card->card_dev);  in snd_card_register()
743 		card->registered = true;  in snd_card_register()
746 	if ((err = snd_device_register_all(card)) < 0)  in snd_card_register()
749 	if (snd_cards[card->number]) {  in snd_card_register()
752 		return snd_info_card_register(card); /* register pending info */  in snd_card_register()
754 	if (*card->id) {  in snd_card_register()
756 		char tmpid[sizeof(card->id)];  in snd_card_register()
757 		memcpy(tmpid, card->id, sizeof(card->id));  in snd_card_register()
758 		snd_card_set_id_no_lock(card, tmpid, tmpid);  in snd_card_register()
762 		src = *card->shortname ? card->shortname : card->longname;  in snd_card_register()
763 		snd_card_set_id_no_lock(card, src,  in snd_card_register()
766 	snd_cards[card->number] = card;  in snd_card_register()
768 	init_info_for_card(card);  in snd_card_register()
771 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER);  in snd_card_register()
783 	struct snd_card *card;  in snd_card_info_read()  local
787 		if ((card = snd_cards[idx]) != NULL) {  in snd_card_info_read()
791 					card->id,  in snd_card_info_read()
792 					card->driver,  in snd_card_info_read()
793 					card->shortname);  in snd_card_info_read()
795 					card->longname);  in snd_card_info_read()
807 	struct snd_card *card;  in snd_card_info_read_oss()  local
811 		if ((card = snd_cards[idx]) != NULL) {  in snd_card_info_read_oss()
813 			snd_iprintf(buffer, "%s\n", card->longname);  in snd_card_info_read_oss()
829 	struct snd_card *card;  in snd_card_module_info_read()  local
833 		if ((card = snd_cards[idx]) != NULL)  in snd_card_module_info_read()
835 				    idx, card->module->name);  in snd_card_module_info_read()
876 int snd_component_add(struct snd_card *card, const char *component)  in snd_component_add()  argument
881 	ptr = strstr(card->components, component);  in snd_component_add()
886 	if (strlen(card->components) + 1 + len + 1 > sizeof(card->components)) {  in snd_component_add()
890 	if (card->components[0] != '\0')  in snd_component_add()
891 		strcat(card->components, " ");  in snd_component_add()
892 	strcat(card->components, component);  in snd_component_add()
909 int snd_card_file_add(struct snd_card *card, struct file *file)  in snd_card_file_add()  argument
919 	spin_lock(&card->files_lock);  in snd_card_file_add()
920 	if (card->shutdown) {  in snd_card_file_add()
921 		spin_unlock(&card->files_lock);  in snd_card_file_add()
925 	list_add(&mfile->list, &card->files_list);  in snd_card_file_add()
926 	get_device(&card->card_dev);  in snd_card_file_add()
927 	spin_unlock(&card->files_lock);  in snd_card_file_add()
946 int snd_card_file_remove(struct snd_card *card, struct file *file)  in snd_card_file_remove()  argument
950 	spin_lock(&card->files_lock);  in snd_card_file_remove()
951 	list_for_each_entry(mfile, &card->files_list, list) {  in snd_card_file_remove()
963 	spin_unlock(&card->files_lock);  in snd_card_file_remove()
965 		dev_err(card->dev, "card file remove problem (%p)\n", file);  in snd_card_file_remove()
969 	put_device(&card->card_dev);  in snd_card_file_remove()
987 int snd_power_wait(struct snd_card *card, unsigned int power_state)  in snd_power_wait()  argument
993 	if (snd_power_get_state(card) == power_state)  in snd_power_wait()
996 	add_wait_queue(&card->power_sleep, &wait);  in snd_power_wait()
998 		if (card->shutdown) {  in snd_power_wait()
1002 		if (snd_power_get_state(card) == power_state)  in snd_power_wait()
1005 		snd_power_unlock(card);  in snd_power_wait()
1007 		snd_power_lock(card);  in snd_power_wait()
1009 	remove_wait_queue(&card->power_sleep, &wait);  in snd_power_wait()