201 			struct snd_kcontrol *kctl, unsigned int ioff)  in snd_ctl_notify_one()  argument
203 	struct snd_ctl_elem_id id = kctl->id;  in snd_ctl_notify_one()
211 		lops->lnotify(card, mask, kctl, ioff);  in snd_ctl_notify_one()
228 static int snd_ctl_new(struct snd_kcontrol **kctl, unsigned int count,  in snd_ctl_new()  argument
236 	*kctl = kzalloc(struct_size(*kctl, vd, count), GFP_KERNEL);  in snd_ctl_new()
237 	if (!*kctl)  in snd_ctl_new()
240 	(*kctl)->count = count;  in snd_ctl_new()
242 		(*kctl)->vd[idx].access = access;  in snd_ctl_new()
243 		(*kctl)->vd[idx].owner = file;  in snd_ctl_new()
263 	struct snd_kcontrol *kctl;  in snd_ctl_new1()  local
287 	err = snd_ctl_new(&kctl, count, access, NULL);  in snd_ctl_new1()
292 	kctl->id.iface = ncontrol->iface;  in snd_ctl_new1()
293 	kctl->id.device = ncontrol->device;  in snd_ctl_new1()
294 	kctl->id.subdevice = ncontrol->subdevice;  in snd_ctl_new1()
296 		strscpy(kctl->id.name, ncontrol->name, sizeof(kctl->id.name));  in snd_ctl_new1()
297 		if (strcmp(ncontrol->name, kctl->id.name) != 0)  in snd_ctl_new1()
299 				ncontrol->name, kctl->id.name);  in snd_ctl_new1()
301 	kctl->id.index = ncontrol->index;  in snd_ctl_new1()
303 	kctl->info = ncontrol->info;  in snd_ctl_new1()
304 	kctl->get = ncontrol->get;  in snd_ctl_new1()
305 	kctl->put = ncontrol->put;  in snd_ctl_new1()
306 	kctl->tlv.p = ncontrol->tlv.p;  in snd_ctl_new1()
308 	kctl->private_value = ncontrol->private_value;  in snd_ctl_new1()
309 	kctl->private_data = private_data;  in snd_ctl_new1()
311 	return kctl;  in snd_ctl_new1()
336 	struct snd_kcontrol *kctl;  in snd_ctl_remove_numid_conflict()  local
342 	list_for_each_entry(kctl, &card->controls, list) {  in snd_ctl_remove_numid_conflict()
343 		if (kctl->id.numid < card->last_numid + 1 + count &&  in snd_ctl_remove_numid_conflict()
344 		    kctl->id.numid + kctl->count > card->last_numid + 1) {  in snd_ctl_remove_numid_conflict()
345 		    	card->last_numid = kctl->id.numid + kctl->count - 1;  in snd_ctl_remove_numid_conflict()
367 static bool elem_id_matches(const struct snd_kcontrol *kctl,  in elem_id_matches()  argument
370 	return kctl->id.iface == id->iface &&  in elem_id_matches()
371 		kctl->id.device == id->device &&  in elem_id_matches()
372 		kctl->id.subdevice == id->subdevice &&  in elem_id_matches()
373 		!strncmp(kctl->id.name, id->name, sizeof(kctl->id.name)) &&  in elem_id_matches()
374 		kctl->id.index <= id->index &&  in elem_id_matches()
375 		kctl->id.index + kctl->count > id->index;  in elem_id_matches()
639 	struct snd_kcontrol *kctl;  in snd_ctl_remove_id()  local
642 	kctl = snd_ctl_find_id(card, id);  in snd_ctl_remove_id()
643 	if (kctl == NULL)  in snd_ctl_remove_id()
645 	return snd_ctl_remove_locked(card, kctl);  in snd_ctl_remove_id()
663 	struct snd_kcontrol *kctl;  in snd_ctl_remove_user_ctl()  local
667 	kctl = snd_ctl_find_id(card, id);  in snd_ctl_remove_user_ctl()
668 	if (kctl == NULL)  in snd_ctl_remove_user_ctl()
670 	if (!(kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_USER))  in snd_ctl_remove_user_ctl()
672 	for (idx = 0; idx < kctl->count; idx++)  in snd_ctl_remove_user_ctl()
673 		if (kctl->vd[idx].owner != NULL && kctl->vd[idx].owner != file)  in snd_ctl_remove_user_ctl()
675 	return snd_ctl_remove_locked(card, kctl);  in snd_ctl_remove_user_ctl()
693 	struct snd_kcontrol *kctl;  in snd_ctl_activate_id()  local
699 	kctl = snd_ctl_find_id(card, id);  in snd_ctl_activate_id()
700 	if (kctl == NULL) {  in snd_ctl_activate_id()
704 	index_offset = snd_ctl_get_ioff(kctl, id);  in snd_ctl_activate_id()
705 	vd = &kctl->vd[index_offset];  in snd_ctl_activate_id()
716 	snd_ctl_build_ioff(id, kctl, index_offset);  in snd_ctl_activate_id()
718 	snd_ctl_notify_one(card, SNDRV_CTL_EVENT_MASK_INFO, kctl, index_offset);  in snd_ctl_activate_id()
749 	struct snd_kcontrol *kctl;  in snd_ctl_rename_id()  local
753 	kctl = snd_ctl_find_id(card, src_id);  in snd_ctl_rename_id()
754 	if (kctl == NULL)  in snd_ctl_rename_id()
756 	saved_numid = kctl->id.numid;  in snd_ctl_rename_id()
757 	remove_hash_entries(card, kctl);  in snd_ctl_rename_id()
758 	kctl->id = *dst_id;  in snd_ctl_rename_id()
759 	kctl->id.numid = saved_numid;  in snd_ctl_rename_id()
760 	add_hash_entries(card, kctl);  in snd_ctl_rename_id()
775 void snd_ctl_rename(struct snd_card *card, struct snd_kcontrol *kctl,  in snd_ctl_rename()  argument
779 	remove_hash_entries(card, kctl);  in snd_ctl_rename()
781 	if (strscpy(kctl->id.name, name, sizeof(kctl->id.name)) < 0)  in snd_ctl_rename()
783 			name, kctl->id.name);  in snd_ctl_rename()
785 	add_hash_entries(card, kctl);  in snd_ctl_rename()
793 	struct snd_kcontrol *kctl;  in snd_ctl_find_numid_slow()  local
796 	list_for_each_entry(kctl, &card->controls, list) {  in snd_ctl_find_numid_slow()
797 		if (kctl->id.numid <= numid && kctl->id.numid + kctl->count > numid)  in snd_ctl_find_numid_slow()
798 			return kctl;  in snd_ctl_find_numid_slow()
843 	struct snd_kcontrol *kctl;  in snd_ctl_find_id()  local
851 	kctl = xa_load(&card->ctl_hash, get_ctl_id_hash(id));  in snd_ctl_find_id()
852 	if (kctl && elem_id_matches(kctl, id))  in snd_ctl_find_id()
853 		return kctl;  in snd_ctl_find_id()
859 	list_for_each_entry(kctl, &card->controls, list)  in snd_ctl_find_id()
860 		if (elem_id_matches(kctl, id))  in snd_ctl_find_id()
861 			return kctl;  in snd_ctl_find_id()
892 	struct snd_kcontrol *kctl;  in snd_ctl_elem_list()  local
904 	list_for_each_entry(kctl, &card->controls, list) {  in snd_ctl_elem_list()
905 		if (offset >= kctl->count) {  in snd_ctl_elem_list()
906 			offset -= kctl->count;  in snd_ctl_elem_list()
909 		for (jidx = offset; jidx < kctl->count; jidx++) {  in snd_ctl_elem_list()
910 			snd_ctl_build_ioff(&id, kctl, jidx);  in snd_ctl_elem_list()
1126 			       struct snd_kcontrol *kctl,  in __snd_ctl_elem_info()  argument
1137 	result = kctl->info(kctl, info);  in __snd_ctl_elem_info()
1140 		index_offset = snd_ctl_get_ioff(kctl, &info->id);  in __snd_ctl_elem_info()
1141 		vd = &kctl->vd[index_offset];  in __snd_ctl_elem_info()
1142 		snd_ctl_build_ioff(&info->id, kctl, index_offset);  in __snd_ctl_elem_info()
1163 	struct snd_kcontrol *kctl;  in snd_ctl_elem_info()  local
1166 	kctl = snd_ctl_find_id(card, &info->id);  in snd_ctl_elem_info()
1167 	if (!kctl)  in snd_ctl_elem_info()
1169 	return __snd_ctl_elem_info(card, kctl, info, ctl);  in snd_ctl_elem_info()
1199 	struct snd_kcontrol *kctl;  in snd_ctl_elem_read()  local
1207 	kctl = snd_ctl_find_id(card, &control->id);  in snd_ctl_elem_read()
1208 	if (!kctl)  in snd_ctl_elem_read()
1211 	index_offset = snd_ctl_get_ioff(kctl, &control->id);  in snd_ctl_elem_read()
1212 	vd = &kctl->vd[index_offset];  in snd_ctl_elem_read()
1213 	if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_READ) || !kctl->get)  in snd_ctl_elem_read()
1216 	snd_ctl_build_ioff(&control->id, kctl, index_offset);  in snd_ctl_elem_read()
1222 	ret = __snd_ctl_elem_info(card, kctl, &info, NULL);  in snd_ctl_elem_read()
1229 	ret = kctl->get(kctl, control);  in snd_ctl_elem_read()
1270 	struct snd_kcontrol *kctl;  in snd_ctl_elem_write()  local
1276 	kctl = snd_ctl_find_id(card, &control->id);  in snd_ctl_elem_write()
1277 	if (kctl == NULL) {  in snd_ctl_elem_write()
1282 	index_offset = snd_ctl_get_ioff(kctl, &control->id);  in snd_ctl_elem_write()
1283 	vd = &kctl->vd[index_offset];  in snd_ctl_elem_write()
1284 	if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_WRITE) || kctl->put == NULL ||  in snd_ctl_elem_write()
1290 	snd_ctl_build_ioff(&control->id, kctl, index_offset);  in snd_ctl_elem_write()
1297 		result = __snd_ctl_elem_info(card, kctl, &info, NULL);  in snd_ctl_elem_write()
1303 		result = kctl->put(kctl, control);  in snd_ctl_elem_write()
1311 		snd_ctl_notify_one(card, SNDRV_CTL_EVENT_MASK_VALUE, kctl, index_offset);  in snd_ctl_elem_write()
1350 	struct snd_kcontrol *kctl;  in snd_ctl_elem_lock()  local
1356 	kctl = snd_ctl_find_id(card, &id);  in snd_ctl_elem_lock()
1357 	if (!kctl)  in snd_ctl_elem_lock()
1359 	vd = &kctl->vd[snd_ctl_get_ioff(kctl, &id)];  in snd_ctl_elem_lock()
1371 	struct snd_kcontrol *kctl;  in snd_ctl_elem_unlock()  local
1377 	kctl = snd_ctl_find_id(card, &id);  in snd_ctl_elem_unlock()
1378 	if (!kctl)  in snd_ctl_elem_unlock()
1380 	vd = &kctl->vd[snd_ctl_get_ioff(kctl, &id)];  in snd_ctl_elem_unlock()
1475 static int replace_user_tlv(struct snd_kcontrol *kctl, unsigned int __user *buf,  in replace_user_tlv()  argument
1478 	struct user_element *ue = kctl->private_data;  in replace_user_tlv()
1507 		for (i = 0; i < kctl->count; ++i)  in replace_user_tlv()
1508 			kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;  in replace_user_tlv()
1522 	for (i = 0; i < kctl->count; ++i)  in replace_user_tlv()
1523 		snd_ctl_notify_one(ue->card, mask, kctl, i);  in replace_user_tlv()
1528 static int read_user_tlv(struct snd_kcontrol *kctl, unsigned int __user *buf,  in read_user_tlv()  argument
1531 	struct user_element *ue = kctl->private_data;  in read_user_tlv()
1545 static int snd_ctl_elem_user_tlv(struct snd_kcontrol *kctl, int op_flag,  in snd_ctl_elem_user_tlv()  argument
1549 		return replace_user_tlv(kctl, buf, size);  in snd_ctl_elem_user_tlv()
1551 		return read_user_tlv(kctl, buf, size);  in snd_ctl_elem_user_tlv()
1618 	struct snd_kcontrol *kctl;  in snd_ctl_elem_add()  local
1684 	err = snd_ctl_new(&kctl, count, access, file);  in snd_ctl_elem_add()
1687 	memcpy(&kctl->id, &info->id, sizeof(kctl->id));  in snd_ctl_elem_add()
1690 		kfree(kctl);  in snd_ctl_elem_add()
1693 	kctl->private_data = ue;  in snd_ctl_elem_add()
1694 	kctl->private_free = snd_ctl_elem_user_free;  in snd_ctl_elem_add()
1708 			snd_ctl_free_one(kctl);  in snd_ctl_elem_add()
1715 		kctl->info = snd_ctl_elem_user_enum_info;  in snd_ctl_elem_add()
1717 		kctl->info = snd_ctl_elem_user_info;  in snd_ctl_elem_add()
1719 		kctl->get = snd_ctl_elem_user_get;  in snd_ctl_elem_add()
1721 		kctl->put = snd_ctl_elem_user_put;  in snd_ctl_elem_add()
1723 		kctl->tlv.c = snd_ctl_elem_user_tlv;  in snd_ctl_elem_add()
1726 	err = __snd_ctl_add_replace(card, kctl, CTL_ADD_EXCLUSIVE);  in snd_ctl_elem_add()
1728 		snd_ctl_free_one(kctl);  in snd_ctl_elem_add()
1731 	offset = snd_ctl_get_ioff(kctl, &info->id);  in snd_ctl_elem_add()
1732 	snd_ctl_build_ioff(&info->id, kctl, offset);  in snd_ctl_elem_add()
1794 			    struct snd_kcontrol *kctl,  in call_tlv_handler()  argument
1806 	struct snd_kcontrol_volatile *vd = &kctl->vd[snd_ctl_get_ioff(kctl, id)];  in call_tlv_handler()
1817 	if (kctl->tlv.c == NULL)  in call_tlv_handler()
1825 	return kctl->tlv.c(kctl, op_flag, size, buf);  in call_tlv_handler()
1828 static int read_tlv_buf(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id,  in read_tlv_buf()  argument
1831 	struct snd_kcontrol_volatile *vd = &kctl->vd[snd_ctl_get_ioff(kctl, id)];  in read_tlv_buf()
1837 	if (kctl->tlv.p == NULL)  in read_tlv_buf()
1840 	len = sizeof(unsigned int) * 2 + kctl->tlv.p[1];  in read_tlv_buf()
1844 	if (copy_to_user(buf, kctl->tlv.p, len))  in read_tlv_buf()
1857 	struct snd_kcontrol *kctl;  in snd_ctl_tlv_ioctl()  local
1876 	kctl = snd_ctl_find_numid(file->card, header.numid);  in snd_ctl_tlv_ioctl()
1877 	if (kctl == NULL)  in snd_ctl_tlv_ioctl()
1881 	id = kctl->id;  in snd_ctl_tlv_ioctl()
1882 	snd_ctl_build_ioff(&id, kctl, header.numid - id.numid);  in snd_ctl_tlv_ioctl()
1883 	vd = &kctl->vd[snd_ctl_get_ioff(kctl, &id)];  in snd_ctl_tlv_ioctl()
1886 		return call_tlv_handler(file, op_flag, kctl, &id, container,  in snd_ctl_tlv_ioctl()
1890 			return read_tlv_buf(kctl, &id, container,  in snd_ctl_tlv_ioctl()
2160 	struct snd_ctl_file *kctl;  in snd_ctl_get_preferred_subdevice()  local
2164 	list_for_each_entry(kctl, &card->ctl_files, list) {  in snd_ctl_get_preferred_subdevice()
2165 		if (kctl->pid == task_pid(current)) {  in snd_ctl_get_preferred_subdevice()
2166 			subdevice = kctl->preferred_subdevice[type];  in snd_ctl_get_preferred_subdevice()