Lines Matching +full:data +full:- +full:mapping
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * uvc_ctrl.c -- USB Video Class driver - Controls
5 * Copyright (C) 2005-2010
20 #include <media/v4l2-ctrls.h>
32 /* ------------------------------------------------------------------------
373 static s32 uvc_ctrl_get_zoom(struct uvc_control_mapping *mapping, in uvc_ctrl_get_zoom() argument
374 u8 query, const u8 *data) in uvc_ctrl_get_zoom() argument
376 s8 zoom = (s8)data[0]; in uvc_ctrl_get_zoom()
380 return (zoom == 0) ? 0 : (zoom > 0 ? data[2] : -data[2]); in uvc_ctrl_get_zoom()
387 return data[2]; in uvc_ctrl_get_zoom()
391 static void uvc_ctrl_set_zoom(struct uvc_control_mapping *mapping, in uvc_ctrl_set_zoom() argument
392 s32 value, u8 *data) in uvc_ctrl_set_zoom() argument
394 data[0] = value == 0 ? 0 : (value > 0) ? 1 : 0xff; in uvc_ctrl_set_zoom()
395 data[2] = min((int)abs(value), 0xff); in uvc_ctrl_set_zoom()
398 static s32 uvc_ctrl_get_rel_speed(struct uvc_control_mapping *mapping, in uvc_ctrl_get_rel_speed() argument
399 u8 query, const u8 *data) in uvc_ctrl_get_rel_speed() argument
401 unsigned int first = mapping->offset / 8; in uvc_ctrl_get_rel_speed()
402 s8 rel = (s8)data[first]; in uvc_ctrl_get_rel_speed()
406 return (rel == 0) ? 0 : (rel > 0 ? data[first+1] in uvc_ctrl_get_rel_speed()
407 : -data[first+1]); in uvc_ctrl_get_rel_speed()
409 return -data[first+1]; in uvc_ctrl_get_rel_speed()
414 return data[first+1]; in uvc_ctrl_get_rel_speed()
418 static void uvc_ctrl_set_rel_speed(struct uvc_control_mapping *mapping, in uvc_ctrl_set_rel_speed() argument
419 s32 value, u8 *data) in uvc_ctrl_set_rel_speed() argument
421 unsigned int first = mapping->offset / 8; in uvc_ctrl_set_rel_speed()
423 data[first] = value == 0 ? 0 : (value > 0) ? 1 : 0xff; in uvc_ctrl_set_rel_speed()
424 data[first+1] = min_t(int, abs(value), 0xff); in uvc_ctrl_set_rel_speed()
758 /* ------------------------------------------------------------------------
764 return ctrl->uvc_data + id * ctrl->info.size; in uvc_ctrl_data()
767 static inline int uvc_test_bit(const u8 *data, int bit) in uvc_test_bit() argument
769 return (data[bit >> 3] >> (bit & 7)) & 1; in uvc_test_bit()
772 static inline void uvc_clear_bit(u8 *data, int bit) in uvc_clear_bit() argument
774 data[bit >> 3] &= ~(1 << (bit & 7)); in uvc_clear_bit()
777 /* Extract the bit string specified by mapping->offset and mapping->size
778 * from the little-endian data stored at 'data' and return the result as
779 * a signed 32bit integer. Sign extension will be performed if the mapping
780 * references a signed data type.
782 static s32 uvc_get_le_value(struct uvc_control_mapping *mapping, in uvc_get_le_value() argument
783 u8 query, const u8 *data) in uvc_get_le_value() argument
785 int bits = mapping->size; in uvc_get_le_value()
786 int offset = mapping->offset; in uvc_get_le_value()
790 data += offset / 8; in uvc_get_le_value()
792 mask = ((1LL << bits) - 1) << offset; in uvc_get_le_value()
795 u8 byte = *data & mask; in uvc_get_le_value()
796 value |= offset > 0 ? (byte >> offset) : (byte << (-offset)); in uvc_get_le_value()
797 bits -= 8 - (offset > 0 ? offset : 0); in uvc_get_le_value()
801 offset -= 8; in uvc_get_le_value()
802 mask = (1 << bits) - 1; in uvc_get_le_value()
803 data++; in uvc_get_le_value()
806 /* Sign-extend the value if needed. */ in uvc_get_le_value()
807 if (mapping->data_type == UVC_CTRL_DATA_TYPE_SIGNED) in uvc_get_le_value()
808 value |= -(value & (1 << (mapping->size - 1))); in uvc_get_le_value()
813 /* Set the bit string specified by mapping->offset and mapping->size
814 * in the little-endian data stored at 'data' to the value 'value'.
816 static void uvc_set_le_value(struct uvc_control_mapping *mapping, in uvc_set_le_value() argument
817 s32 value, u8 *data) in uvc_set_le_value() argument
819 int bits = mapping->size; in uvc_set_le_value()
820 int offset = mapping->offset; in uvc_set_le_value()
825 * triggered. UVC devices however want to see a 1 written -> override in uvc_set_le_value()
828 if (mapping->v4l2_type == V4L2_CTRL_TYPE_BUTTON) in uvc_set_le_value()
829 value = -1; in uvc_set_le_value()
831 data += offset / 8; in uvc_set_le_value()
834 for (; bits > 0; data++) { in uvc_set_le_value()
835 mask = ((1LL << bits) - 1) << offset; in uvc_set_le_value()
836 *data = (*data & ~mask) | ((value << offset) & mask); in uvc_set_le_value()
838 bits -= 8 - offset; in uvc_set_le_value()
843 /* ------------------------------------------------------------------------
850 return memcmp(entity->guid, guid, sizeof(entity->guid)) == 0; in uvc_entity_match_guid()
853 /* ------------------------------------------------------------------------
858 struct uvc_control_mapping **mapping, struct uvc_control **control, in __uvc_find_control() argument
868 for (i = 0; i < entity->ncontrols; ++i) { in __uvc_find_control()
869 ctrl = &entity->controls[i]; in __uvc_find_control()
870 if (!ctrl->initialized) in __uvc_find_control()
873 list_for_each_entry(map, &ctrl->info.mappings, list) { in __uvc_find_control()
874 if ((map->id == v4l2_id) && !next) { in __uvc_find_control()
876 *mapping = map; in __uvc_find_control()
880 if ((*mapping == NULL || (*mapping)->id > map->id) && in __uvc_find_control()
881 (map->id > v4l2_id) && next) { in __uvc_find_control()
883 *mapping = map; in __uvc_find_control()
890 u32 v4l2_id, struct uvc_control_mapping **mapping) in uvc_find_control() argument
896 *mapping = NULL; in uvc_find_control()
902 list_for_each_entry(entity, &chain->entities, chain) { in uvc_find_control()
903 __uvc_find_control(entity, v4l2_id, mapping, &ctrl, next); in uvc_find_control()
909 uvc_dbg(chain->dev, CONTROL, "Control 0x%08x not found\n", in uvc_find_control()
920 if (ctrl->info.flags & UVC_CTRL_FLAG_GET_DEF) { in uvc_ctrl_populate_cache()
921 ret = uvc_query_ctrl(chain->dev, UVC_GET_DEF, ctrl->entity->id, in uvc_ctrl_populate_cache()
922 chain->dev->intfnum, ctrl->info.selector, in uvc_ctrl_populate_cache()
924 ctrl->info.size); in uvc_ctrl_populate_cache()
929 if (ctrl->info.flags & UVC_CTRL_FLAG_GET_MIN) { in uvc_ctrl_populate_cache()
930 ret = uvc_query_ctrl(chain->dev, UVC_GET_MIN, ctrl->entity->id, in uvc_ctrl_populate_cache()
931 chain->dev->intfnum, ctrl->info.selector, in uvc_ctrl_populate_cache()
933 ctrl->info.size); in uvc_ctrl_populate_cache()
937 if (ctrl->info.flags & UVC_CTRL_FLAG_GET_MAX) { in uvc_ctrl_populate_cache()
938 ret = uvc_query_ctrl(chain->dev, UVC_GET_MAX, ctrl->entity->id, in uvc_ctrl_populate_cache()
939 chain->dev->intfnum, ctrl->info.selector, in uvc_ctrl_populate_cache()
941 ctrl->info.size); in uvc_ctrl_populate_cache()
945 if (ctrl->info.flags & UVC_CTRL_FLAG_GET_RES) { in uvc_ctrl_populate_cache()
946 ret = uvc_query_ctrl(chain->dev, UVC_GET_RES, ctrl->entity->id, in uvc_ctrl_populate_cache()
947 chain->dev->intfnum, ctrl->info.selector, in uvc_ctrl_populate_cache()
949 ctrl->info.size); in uvc_ctrl_populate_cache()
951 if (UVC_ENTITY_TYPE(ctrl->entity) != in uvc_ctrl_populate_cache()
959 uvc_warn_once(chain->dev, UVC_WARN_XU_GET_RES, in uvc_ctrl_populate_cache()
960 "UVC non compliance - GET_RES failed on " in uvc_ctrl_populate_cache()
963 ctrl->info.size); in uvc_ctrl_populate_cache()
967 ctrl->cached = 1; in uvc_ctrl_populate_cache()
971 static s32 __uvc_ctrl_get_value(struct uvc_control_mapping *mapping, in __uvc_ctrl_get_value() argument
972 const u8 *data) in __uvc_ctrl_get_value() argument
974 s32 value = mapping->get(mapping, UVC_GET_CUR, data); in __uvc_ctrl_get_value()
976 if (mapping->v4l2_type == V4L2_CTRL_TYPE_MENU) { in __uvc_ctrl_get_value()
977 const struct uvc_menu_info *menu = mapping->menu_info; in __uvc_ctrl_get_value()
980 for (i = 0; i < mapping->menu_count; ++i, ++menu) { in __uvc_ctrl_get_value()
981 if (menu->value == value) { in __uvc_ctrl_get_value()
992 struct uvc_control *ctrl, struct uvc_control_mapping *mapping, in __uvc_ctrl_get() argument
997 if ((ctrl->info.flags & UVC_CTRL_FLAG_GET_CUR) == 0) in __uvc_ctrl_get()
998 return -EACCES; in __uvc_ctrl_get()
1000 if (!ctrl->loaded) { in __uvc_ctrl_get()
1001 if (ctrl->entity->get_cur) { in __uvc_ctrl_get()
1002 ret = ctrl->entity->get_cur(chain->dev, in __uvc_ctrl_get()
1003 ctrl->entity, in __uvc_ctrl_get()
1004 ctrl->info.selector, in __uvc_ctrl_get()
1006 ctrl->info.size); in __uvc_ctrl_get()
1008 ret = uvc_query_ctrl(chain->dev, UVC_GET_CUR, in __uvc_ctrl_get()
1009 ctrl->entity->id, in __uvc_ctrl_get()
1010 chain->dev->intfnum, in __uvc_ctrl_get()
1011 ctrl->info.selector, in __uvc_ctrl_get()
1013 ctrl->info.size); in __uvc_ctrl_get()
1018 ctrl->loaded = 1; in __uvc_ctrl_get()
1021 *value = __uvc_ctrl_get_value(mapping, in __uvc_ctrl_get()
1029 struct uvc_control_mapping *mapping, in __uvc_query_v4l2_ctrl() argument
1038 v4l2_ctrl->id = mapping->id; in __uvc_query_v4l2_ctrl()
1039 v4l2_ctrl->type = mapping->v4l2_type; in __uvc_query_v4l2_ctrl()
1040 strscpy(v4l2_ctrl->name, mapping->name, sizeof(v4l2_ctrl->name)); in __uvc_query_v4l2_ctrl()
1041 v4l2_ctrl->flags = 0; in __uvc_query_v4l2_ctrl()
1043 if (!(ctrl->info.flags & UVC_CTRL_FLAG_GET_CUR)) in __uvc_query_v4l2_ctrl()
1044 v4l2_ctrl->flags |= V4L2_CTRL_FLAG_WRITE_ONLY; in __uvc_query_v4l2_ctrl()
1045 if (!(ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR)) in __uvc_query_v4l2_ctrl()
1046 v4l2_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; in __uvc_query_v4l2_ctrl()
1048 if (mapping->master_id) in __uvc_query_v4l2_ctrl()
1049 __uvc_find_control(ctrl->entity, mapping->master_id, in __uvc_query_v4l2_ctrl()
1051 if (master_ctrl && (master_ctrl->info.flags & UVC_CTRL_FLAG_GET_CUR)) { in __uvc_query_v4l2_ctrl()
1057 if (val != mapping->master_manual) in __uvc_query_v4l2_ctrl()
1058 v4l2_ctrl->flags |= V4L2_CTRL_FLAG_INACTIVE; in __uvc_query_v4l2_ctrl()
1061 if (!ctrl->cached) { in __uvc_query_v4l2_ctrl()
1067 if (ctrl->info.flags & UVC_CTRL_FLAG_GET_DEF) { in __uvc_query_v4l2_ctrl()
1068 v4l2_ctrl->default_value = mapping->get(mapping, UVC_GET_DEF, in __uvc_query_v4l2_ctrl()
1072 switch (mapping->v4l2_type) { in __uvc_query_v4l2_ctrl()
1074 v4l2_ctrl->minimum = 0; in __uvc_query_v4l2_ctrl()
1075 v4l2_ctrl->maximum = mapping->menu_count - 1; in __uvc_query_v4l2_ctrl()
1076 v4l2_ctrl->step = 1; in __uvc_query_v4l2_ctrl()
1078 menu = mapping->menu_info; in __uvc_query_v4l2_ctrl()
1079 for (i = 0; i < mapping->menu_count; ++i, ++menu) { in __uvc_query_v4l2_ctrl()
1080 if (menu->value == v4l2_ctrl->default_value) { in __uvc_query_v4l2_ctrl()
1081 v4l2_ctrl->default_value = i; in __uvc_query_v4l2_ctrl()
1089 v4l2_ctrl->minimum = 0; in __uvc_query_v4l2_ctrl()
1090 v4l2_ctrl->maximum = 1; in __uvc_query_v4l2_ctrl()
1091 v4l2_ctrl->step = 1; in __uvc_query_v4l2_ctrl()
1095 v4l2_ctrl->minimum = 0; in __uvc_query_v4l2_ctrl()
1096 v4l2_ctrl->maximum = 0; in __uvc_query_v4l2_ctrl()
1097 v4l2_ctrl->step = 0; in __uvc_query_v4l2_ctrl()
1104 if (ctrl->info.flags & UVC_CTRL_FLAG_GET_MIN) in __uvc_query_v4l2_ctrl()
1105 v4l2_ctrl->minimum = mapping->get(mapping, UVC_GET_MIN, in __uvc_query_v4l2_ctrl()
1108 if (ctrl->info.flags & UVC_CTRL_FLAG_GET_MAX) in __uvc_query_v4l2_ctrl()
1109 v4l2_ctrl->maximum = mapping->get(mapping, UVC_GET_MAX, in __uvc_query_v4l2_ctrl()
1112 if (ctrl->info.flags & UVC_CTRL_FLAG_GET_RES) in __uvc_query_v4l2_ctrl()
1113 v4l2_ctrl->step = mapping->get(mapping, UVC_GET_RES, in __uvc_query_v4l2_ctrl()
1123 struct uvc_control_mapping *mapping; in uvc_query_v4l2_ctrl() local
1126 ret = mutex_lock_interruptible(&chain->ctrl_mutex); in uvc_query_v4l2_ctrl()
1128 return -ERESTARTSYS; in uvc_query_v4l2_ctrl()
1130 ctrl = uvc_find_control(chain, v4l2_ctrl->id, &mapping); in uvc_query_v4l2_ctrl()
1132 ret = -EINVAL; in uvc_query_v4l2_ctrl()
1136 ret = __uvc_query_v4l2_ctrl(chain, ctrl, mapping, v4l2_ctrl); in uvc_query_v4l2_ctrl()
1138 mutex_unlock(&chain->ctrl_mutex); in uvc_query_v4l2_ctrl()
1143 * Mapping V4L2 controls to UVC controls can be straightforward if done well.
1155 struct uvc_control_mapping *mapping; in uvc_query_v4l2_menu() local
1157 u32 index = query_menu->index; in uvc_query_v4l2_menu()
1158 u32 id = query_menu->id; in uvc_query_v4l2_menu()
1162 query_menu->id = id; in uvc_query_v4l2_menu()
1163 query_menu->index = index; in uvc_query_v4l2_menu()
1165 ret = mutex_lock_interruptible(&chain->ctrl_mutex); in uvc_query_v4l2_menu()
1167 return -ERESTARTSYS; in uvc_query_v4l2_menu()
1169 ctrl = uvc_find_control(chain, query_menu->id, &mapping); in uvc_query_v4l2_menu()
1170 if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU) { in uvc_query_v4l2_menu()
1171 ret = -EINVAL; in uvc_query_v4l2_menu()
1175 if (query_menu->index >= mapping->menu_count) { in uvc_query_v4l2_menu()
1176 ret = -EINVAL; in uvc_query_v4l2_menu()
1180 menu_info = &mapping->menu_info[query_menu->index]; in uvc_query_v4l2_menu()
1182 if (mapping->data_type == UVC_CTRL_DATA_TYPE_BITMASK && in uvc_query_v4l2_menu()
1183 (ctrl->info.flags & UVC_CTRL_FLAG_GET_RES)) { in uvc_query_v4l2_menu()
1186 if (!ctrl->cached) { in uvc_query_v4l2_menu()
1192 bitmap = mapping->get(mapping, UVC_GET_RES, in uvc_query_v4l2_menu()
1194 if (!(bitmap & menu_info->value)) { in uvc_query_v4l2_menu()
1195 ret = -EINVAL; in uvc_query_v4l2_menu()
1200 strscpy(query_menu->name, menu_info->name, sizeof(query_menu->name)); in uvc_query_v4l2_menu()
1203 mutex_unlock(&chain->ctrl_mutex); in uvc_query_v4l2_menu()
1207 /* --------------------------------------------------------------------------
1214 struct uvc_control_mapping *mapping, in uvc_ctrl_fill_event() argument
1219 __uvc_query_v4l2_ctrl(chain, ctrl, mapping, &v4l2_ctrl); in uvc_ctrl_fill_event()
1222 ev->type = V4L2_EVENT_CTRL; in uvc_ctrl_fill_event()
1223 ev->id = v4l2_ctrl.id; in uvc_ctrl_fill_event()
1224 ev->u.ctrl.value = value; in uvc_ctrl_fill_event()
1225 ev->u.ctrl.changes = changes; in uvc_ctrl_fill_event()
1226 ev->u.ctrl.type = v4l2_ctrl.type; in uvc_ctrl_fill_event()
1227 ev->u.ctrl.flags = v4l2_ctrl.flags; in uvc_ctrl_fill_event()
1228 ev->u.ctrl.minimum = v4l2_ctrl.minimum; in uvc_ctrl_fill_event()
1229 ev->u.ctrl.maximum = v4l2_ctrl.maximum; in uvc_ctrl_fill_event()
1230 ev->u.ctrl.step = v4l2_ctrl.step; in uvc_ctrl_fill_event()
1231 ev->u.ctrl.default_value = v4l2_ctrl.default_value; in uvc_ctrl_fill_event()
1238 * @handle can be NULL for asynchronous events related to auto-update controls,
1243 struct uvc_control_mapping *mapping, s32 value, u32 changes) in uvc_ctrl_send_event() argument
1245 struct v4l2_fh *originator = handle ? &handle->vfh : NULL; in uvc_ctrl_send_event()
1249 if (list_empty(&mapping->ev_subs)) in uvc_ctrl_send_event()
1252 uvc_ctrl_fill_event(chain, &ev, ctrl, mapping, value, changes); in uvc_ctrl_send_event()
1254 list_for_each_entry(sev, &mapping->ev_subs, node) { in uvc_ctrl_send_event()
1255 if (sev->fh != originator || in uvc_ctrl_send_event()
1256 (sev->flags & V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK) || in uvc_ctrl_send_event()
1258 v4l2_event_queue_fh(sev->fh, &ev); in uvc_ctrl_send_event()
1265 * generated the event and may be NULL for auto-update events.
1270 struct uvc_control_mapping *mapping = NULL; in uvc_ctrl_send_slave_event() local
1275 __uvc_find_control(master->entity, slave_id, &mapping, &ctrl, 0); in uvc_ctrl_send_slave_event()
1279 if (__uvc_ctrl_get(chain, ctrl, mapping, &val) == 0) in uvc_ctrl_send_slave_event()
1282 uvc_ctrl_send_event(chain, handle, ctrl, mapping, val, changes); in uvc_ctrl_send_slave_event()
1286 struct uvc_control *ctrl, const u8 *data) in uvc_ctrl_status_event() argument
1288 struct uvc_control_mapping *mapping; in uvc_ctrl_status_event() local
1292 mutex_lock(&chain->ctrl_mutex); in uvc_ctrl_status_event()
1294 handle = ctrl->handle; in uvc_ctrl_status_event()
1295 ctrl->handle = NULL; in uvc_ctrl_status_event()
1297 list_for_each_entry(mapping, &ctrl->info.mappings, list) { in uvc_ctrl_status_event()
1298 s32 value = __uvc_ctrl_get_value(mapping, data); in uvc_ctrl_status_event()
1301 * handle may be NULL here if the device sends auto-update in uvc_ctrl_status_event()
1304 for (i = 0; i < ARRAY_SIZE(mapping->slave_ids); ++i) { in uvc_ctrl_status_event()
1305 if (!mapping->slave_ids[i]) in uvc_ctrl_status_event()
1309 mapping->slave_ids[i]); in uvc_ctrl_status_event()
1312 uvc_ctrl_send_event(chain, handle, ctrl, mapping, value, in uvc_ctrl_status_event()
1316 mutex_unlock(&chain->ctrl_mutex); in uvc_ctrl_status_event()
1323 struct uvc_ctrl_work *w = &dev->async_ctrl; in uvc_ctrl_status_event_work()
1326 uvc_ctrl_status_event(w->chain, w->ctrl, w->data); in uvc_ctrl_status_event_work()
1329 w->urb->interval = dev->int_ep->desc.bInterval; in uvc_ctrl_status_event_work()
1330 ret = usb_submit_urb(w->urb, GFP_KERNEL); in uvc_ctrl_status_event_work()
1332 dev_err(&dev->udev->dev, in uvc_ctrl_status_event_work()
1337 struct uvc_control *ctrl, const u8 *data) in uvc_ctrl_status_event_async() argument
1339 struct uvc_device *dev = chain->dev; in uvc_ctrl_status_event_async()
1340 struct uvc_ctrl_work *w = &dev->async_ctrl; in uvc_ctrl_status_event_async()
1342 if (list_empty(&ctrl->info.mappings)) { in uvc_ctrl_status_event_async()
1343 ctrl->handle = NULL; in uvc_ctrl_status_event_async()
1347 w->data = data; in uvc_ctrl_status_event_async()
1348 w->urb = urb; in uvc_ctrl_status_event_async()
1349 w->chain = chain; in uvc_ctrl_status_event_async()
1350 w->ctrl = ctrl; in uvc_ctrl_status_event_async()
1352 schedule_work(&w->work); in uvc_ctrl_status_event_async()
1373 struct uvc_control_mapping *mapping; in uvc_ctrl_send_events() local
1380 ctrl = uvc_find_control(handle->chain, xctrls[i].id, &mapping); in uvc_ctrl_send_events()
1382 if (ctrl->info.flags & UVC_CTRL_FLAG_ASYNCHRONOUS) in uvc_ctrl_send_events()
1386 for (j = 0; j < ARRAY_SIZE(mapping->slave_ids); ++j) { in uvc_ctrl_send_events()
1387 u32 slave_id = mapping->slave_ids[j]; in uvc_ctrl_send_events()
1400 uvc_ctrl_send_slave_event(handle->chain, handle, ctrl, in uvc_ctrl_send_events()
1408 if (mapping->master_id && in uvc_ctrl_send_events()
1410 mapping->master_id)) in uvc_ctrl_send_events()
1413 uvc_ctrl_send_event(handle->chain, handle, ctrl, mapping, in uvc_ctrl_send_events()
1420 struct uvc_fh *handle = container_of(sev->fh, struct uvc_fh, vfh); in uvc_ctrl_add_event()
1421 struct uvc_control_mapping *mapping; in uvc_ctrl_add_event() local
1425 ret = mutex_lock_interruptible(&handle->chain->ctrl_mutex); in uvc_ctrl_add_event()
1427 return -ERESTARTSYS; in uvc_ctrl_add_event()
1429 ctrl = uvc_find_control(handle->chain, sev->id, &mapping); in uvc_ctrl_add_event()
1431 ret = -EINVAL; in uvc_ctrl_add_event()
1435 list_add_tail(&sev->node, &mapping->ev_subs); in uvc_ctrl_add_event()
1436 if (sev->flags & V4L2_EVENT_SUB_FL_SEND_INITIAL) { in uvc_ctrl_add_event()
1441 if (__uvc_ctrl_get(handle->chain, ctrl, mapping, &val) == 0) in uvc_ctrl_add_event()
1444 uvc_ctrl_fill_event(handle->chain, &ev, ctrl, mapping, val, in uvc_ctrl_add_event()
1448 sev->elems = elems; in uvc_ctrl_add_event()
1449 v4l2_event_queue_fh(sev->fh, &ev); in uvc_ctrl_add_event()
1453 mutex_unlock(&handle->chain->ctrl_mutex); in uvc_ctrl_add_event()
1459 struct uvc_fh *handle = container_of(sev->fh, struct uvc_fh, vfh); in uvc_ctrl_del_event()
1461 mutex_lock(&handle->chain->ctrl_mutex); in uvc_ctrl_del_event()
1462 list_del(&sev->node); in uvc_ctrl_del_event()
1463 mutex_unlock(&handle->chain->ctrl_mutex); in uvc_ctrl_del_event()
1473 /* --------------------------------------------------------------------------
1482 * When setting a control, the new value is stored in the control data field
1485 * value is loaded from the hardware before storing the new value in the data
1492 * cleared. When reverting controls, the control data field
1499 return mutex_lock_interruptible(&chain->ctrl_mutex) ? -ERESTARTSYS : 0; in uvc_ctrl_begin()
1512 for (i = 0; i < entity->ncontrols; ++i) { in uvc_ctrl_commit_entity()
1513 ctrl = &entity->controls[i]; in uvc_ctrl_commit_entity()
1514 if (!ctrl->initialized) in uvc_ctrl_commit_entity()
1517 /* Reset the loaded flag for auto-update controls that were in uvc_ctrl_commit_entity()
1519 * uvc_ctrl_get from using the cached value, and for write-only in uvc_ctrl_commit_entity()
1523 if (ctrl->info.flags & UVC_CTRL_FLAG_AUTO_UPDATE || in uvc_ctrl_commit_entity()
1524 !(ctrl->info.flags & UVC_CTRL_FLAG_GET_CUR)) in uvc_ctrl_commit_entity()
1525 ctrl->loaded = 0; in uvc_ctrl_commit_entity()
1527 if (!ctrl->dirty) in uvc_ctrl_commit_entity()
1531 ret = uvc_query_ctrl(dev, UVC_SET_CUR, ctrl->entity->id, in uvc_ctrl_commit_entity()
1532 dev->intfnum, ctrl->info.selector, in uvc_ctrl_commit_entity()
1534 ctrl->info.size); in uvc_ctrl_commit_entity()
1541 ctrl->info.size); in uvc_ctrl_commit_entity()
1543 ctrl->dirty = 0; in uvc_ctrl_commit_entity()
1556 struct uvc_video_chain *chain = handle->chain; in __uvc_ctrl_commit()
1561 list_for_each_entry(entity, &chain->entities, chain) { in __uvc_ctrl_commit()
1562 ret = uvc_ctrl_commit_entity(chain->dev, entity, rollback); in __uvc_ctrl_commit()
1570 mutex_unlock(&chain->ctrl_mutex); in __uvc_ctrl_commit()
1578 struct uvc_control_mapping *mapping; in uvc_ctrl_get() local
1580 ctrl = uvc_find_control(chain, xctrl->id, &mapping); in uvc_ctrl_get()
1582 return -EINVAL; in uvc_ctrl_get()
1584 return __uvc_ctrl_get(chain, ctrl, mapping, &xctrl->value); in uvc_ctrl_get()
1590 struct uvc_video_chain *chain = handle->chain; in uvc_ctrl_set()
1592 struct uvc_control_mapping *mapping; in uvc_ctrl_set() local
1599 ctrl = uvc_find_control(chain, xctrl->id, &mapping); in uvc_ctrl_set()
1601 return -EINVAL; in uvc_ctrl_set()
1602 if (!(ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR)) in uvc_ctrl_set()
1603 return -EACCES; in uvc_ctrl_set()
1606 switch (mapping->v4l2_type) { in uvc_ctrl_set()
1608 if (!ctrl->cached) { in uvc_ctrl_set()
1614 min = mapping->get(mapping, UVC_GET_MIN, in uvc_ctrl_set()
1616 max = mapping->get(mapping, UVC_GET_MAX, in uvc_ctrl_set()
1618 step = mapping->get(mapping, UVC_GET_RES, in uvc_ctrl_set()
1623 xctrl->value = min + DIV_ROUND_CLOSEST((u32)(xctrl->value - min), in uvc_ctrl_set()
1625 if (mapping->data_type == UVC_CTRL_DATA_TYPE_SIGNED) in uvc_ctrl_set()
1626 xctrl->value = clamp(xctrl->value, min, max); in uvc_ctrl_set()
1628 xctrl->value = clamp_t(u32, xctrl->value, min, max); in uvc_ctrl_set()
1629 value = xctrl->value; in uvc_ctrl_set()
1633 xctrl->value = clamp(xctrl->value, 0, 1); in uvc_ctrl_set()
1634 value = xctrl->value; in uvc_ctrl_set()
1638 if (xctrl->value < 0 || xctrl->value >= mapping->menu_count) in uvc_ctrl_set()
1639 return -ERANGE; in uvc_ctrl_set()
1640 value = mapping->menu_info[xctrl->value].value; in uvc_ctrl_set()
1645 if (mapping->data_type == UVC_CTRL_DATA_TYPE_BITMASK && in uvc_ctrl_set()
1646 (ctrl->info.flags & UVC_CTRL_FLAG_GET_RES)) { in uvc_ctrl_set()
1647 if (!ctrl->cached) { in uvc_ctrl_set()
1653 step = mapping->get(mapping, UVC_GET_RES, in uvc_ctrl_set()
1656 return -EINVAL; in uvc_ctrl_set()
1662 value = xctrl->value; in uvc_ctrl_set()
1666 /* If the mapping doesn't span the whole UVC control, the current value in uvc_ctrl_set()
1667 * needs to be loaded from the device to perform the read-modify-write in uvc_ctrl_set()
1670 if (!ctrl->loaded && (ctrl->info.size * 8) != mapping->size) { in uvc_ctrl_set()
1671 if ((ctrl->info.flags & UVC_CTRL_FLAG_GET_CUR) == 0) { in uvc_ctrl_set()
1673 0, ctrl->info.size); in uvc_ctrl_set()
1675 ret = uvc_query_ctrl(chain->dev, UVC_GET_CUR, in uvc_ctrl_set()
1676 ctrl->entity->id, chain->dev->intfnum, in uvc_ctrl_set()
1677 ctrl->info.selector, in uvc_ctrl_set()
1679 ctrl->info.size); in uvc_ctrl_set()
1684 ctrl->loaded = 1; in uvc_ctrl_set()
1688 if (!ctrl->dirty) { in uvc_ctrl_set()
1691 ctrl->info.size); in uvc_ctrl_set()
1694 mapping->set(mapping, value, in uvc_ctrl_set()
1697 if (ctrl->info.flags & UVC_CTRL_FLAG_ASYNCHRONOUS) in uvc_ctrl_set()
1698 ctrl->handle = handle; in uvc_ctrl_set()
1700 ctrl->dirty = 1; in uvc_ctrl_set()
1701 ctrl->modified = 1; in uvc_ctrl_set()
1705 /* --------------------------------------------------------------------------
1716 u8 *data; in uvc_ctrl_get_flags() local
1719 data = kmalloc(1, GFP_KERNEL); in uvc_ctrl_get_flags()
1720 if (data == NULL) in uvc_ctrl_get_flags()
1721 return -ENOMEM; in uvc_ctrl_get_flags()
1723 if (ctrl->entity->get_info) in uvc_ctrl_get_flags()
1724 ret = ctrl->entity->get_info(dev, ctrl->entity, in uvc_ctrl_get_flags()
1725 ctrl->info.selector, data); in uvc_ctrl_get_flags()
1727 ret = uvc_query_ctrl(dev, UVC_GET_INFO, ctrl->entity->id, in uvc_ctrl_get_flags()
1728 dev->intfnum, info->selector, data, 1); in uvc_ctrl_get_flags()
1730 info->flags |= (data[0] & UVC_CONTROL_CAP_GET ? in uvc_ctrl_get_flags()
1732 | (data[0] & UVC_CONTROL_CAP_SET ? in uvc_ctrl_get_flags()
1734 | (data[0] & UVC_CONTROL_CAP_AUTOUPDATE ? in uvc_ctrl_get_flags()
1736 | (data[0] & UVC_CONTROL_CAP_ASYNCHRONOUS ? in uvc_ctrl_get_flags()
1739 kfree(data); in uvc_ctrl_get_flags()
1771 if (!usb_match_one_id(dev->intf, &fixups[i].id)) in uvc_ctrl_fixup_xu_info()
1774 if (fixups[i].entity == ctrl->entity->id && in uvc_ctrl_fixup_xu_info()
1775 fixups[i].selector == info->selector) { in uvc_ctrl_fixup_xu_info()
1776 info->flags = fixups[i].flags; in uvc_ctrl_fixup_xu_info()
1788 u8 *data; in uvc_ctrl_fill_xu_info() local
1791 data = kmalloc(2, GFP_KERNEL); in uvc_ctrl_fill_xu_info()
1792 if (data == NULL) in uvc_ctrl_fill_xu_info()
1793 return -ENOMEM; in uvc_ctrl_fill_xu_info()
1795 memcpy(info->entity, ctrl->entity->guid, sizeof(info->entity)); in uvc_ctrl_fill_xu_info()
1796 info->index = ctrl->index; in uvc_ctrl_fill_xu_info()
1797 info->selector = ctrl->index + 1; in uvc_ctrl_fill_xu_info()
1800 ret = uvc_query_ctrl(dev, UVC_GET_LEN, ctrl->entity->id, dev->intfnum, in uvc_ctrl_fill_xu_info()
1801 info->selector, data, 2); in uvc_ctrl_fill_xu_info()
1805 info->entity, info->selector, ret); in uvc_ctrl_fill_xu_info()
1809 info->size = le16_to_cpup((__le16 *)data); in uvc_ctrl_fill_xu_info()
1811 info->flags = UVC_CTRL_FLAG_GET_MIN | UVC_CTRL_FLAG_GET_MAX in uvc_ctrl_fill_xu_info()
1818 info->entity, info->selector, ret); in uvc_ctrl_fill_xu_info()
1826 info->entity, info->selector, info->size, in uvc_ctrl_fill_xu_info()
1827 (info->flags & UVC_CTRL_FLAG_GET_CUR) ? 1 : 0, in uvc_ctrl_fill_xu_info()
1828 (info->flags & UVC_CTRL_FLAG_SET_CUR) ? 1 : 0, in uvc_ctrl_fill_xu_info()
1829 (info->flags & UVC_CTRL_FLAG_AUTO_UPDATE) ? 1 : 0); in uvc_ctrl_fill_xu_info()
1832 kfree(data); in uvc_ctrl_fill_xu_info()
1845 if (ctrl->initialized) in uvc_ctrl_init_xu_ctrl()
1856 info.entity, info.selector, dev->udev->devpath, in uvc_ctrl_init_xu_ctrl()
1857 ctrl->entity->id); in uvc_ctrl_init_xu_ctrl()
1871 u8 *data = NULL; in uvc_xu_ctrl_query() local
1876 list_for_each_entry(entity, &chain->entities, chain) { in uvc_xu_ctrl_query()
1878 entity->id == xqry->unit) { in uvc_xu_ctrl_query()
1885 uvc_dbg(chain->dev, CONTROL, "Extension unit %u not found\n", in uvc_xu_ctrl_query()
1886 xqry->unit); in uvc_xu_ctrl_query()
1887 return -ENOENT; in uvc_xu_ctrl_query()
1892 for (i = 0; i < entity->ncontrols; ++i) { in uvc_xu_ctrl_query()
1893 ctrl = &entity->controls[i]; in uvc_xu_ctrl_query()
1894 if (ctrl->index == xqry->selector - 1) { in uvc_xu_ctrl_query()
1901 uvc_dbg(chain->dev, CONTROL, "Control %pUl/%u not found\n", in uvc_xu_ctrl_query()
1902 entity->guid, xqry->selector); in uvc_xu_ctrl_query()
1903 return -ENOENT; in uvc_xu_ctrl_query()
1906 if (mutex_lock_interruptible(&chain->ctrl_mutex)) in uvc_xu_ctrl_query()
1907 return -ERESTARTSYS; in uvc_xu_ctrl_query()
1909 ret = uvc_ctrl_init_xu_ctrl(chain->dev, ctrl); in uvc_xu_ctrl_query()
1911 ret = -ENOENT; in uvc_xu_ctrl_query()
1917 size = ctrl->info.size; in uvc_xu_ctrl_query()
1919 switch (xqry->query) { in uvc_xu_ctrl_query()
1945 ret = -EINVAL; in uvc_xu_ctrl_query()
1949 if (size != xqry->size) { in uvc_xu_ctrl_query()
1950 ret = -ENOBUFS; in uvc_xu_ctrl_query()
1954 if (reqflags && !(ctrl->info.flags & reqflags)) { in uvc_xu_ctrl_query()
1955 ret = -EBADRQC; in uvc_xu_ctrl_query()
1959 data = kmalloc(size, GFP_KERNEL); in uvc_xu_ctrl_query()
1960 if (data == NULL) { in uvc_xu_ctrl_query()
1961 ret = -ENOMEM; in uvc_xu_ctrl_query()
1965 if (xqry->query == UVC_SET_CUR && in uvc_xu_ctrl_query()
1966 copy_from_user(data, xqry->data, size)) { in uvc_xu_ctrl_query()
1967 ret = -EFAULT; in uvc_xu_ctrl_query()
1971 ret = uvc_query_ctrl(chain->dev, xqry->query, xqry->unit, in uvc_xu_ctrl_query()
1972 chain->dev->intfnum, xqry->selector, data, size); in uvc_xu_ctrl_query()
1976 if (xqry->query != UVC_SET_CUR && in uvc_xu_ctrl_query()
1977 copy_to_user(xqry->data, data, size)) in uvc_xu_ctrl_query()
1978 ret = -EFAULT; in uvc_xu_ctrl_query()
1980 kfree(data); in uvc_xu_ctrl_query()
1981 mutex_unlock(&chain->ctrl_mutex); in uvc_xu_ctrl_query()
1985 /* --------------------------------------------------------------------------
1994 * - Don't restore modified controls that are back to their default value.
1995 * - Handle restore order (Auto-Exposure Mode should be restored before
2006 list_for_each_entry(entity, &dev->entities, list) { in uvc_ctrl_restore_values()
2008 for (i = 0; i < entity->ncontrols; ++i) { in uvc_ctrl_restore_values()
2009 ctrl = &entity->controls[i]; in uvc_ctrl_restore_values()
2011 if (!ctrl->initialized || !ctrl->modified || in uvc_ctrl_restore_values()
2012 (ctrl->info.flags & UVC_CTRL_FLAG_RESTORE) == 0) in uvc_ctrl_restore_values()
2014 dev_info(&dev->udev->dev, in uvc_ctrl_restore_values()
2016 ctrl->info.entity, ctrl->info.index, in uvc_ctrl_restore_values()
2017 ctrl->info.selector); in uvc_ctrl_restore_values()
2018 ctrl->dirty = 1; in uvc_ctrl_restore_values()
2029 /* --------------------------------------------------------------------------
2030 * Control and mapping handling
2039 ctrl->info = *info; in uvc_ctrl_add_info()
2040 INIT_LIST_HEAD(&ctrl->info.mappings); in uvc_ctrl_add_info()
2043 ctrl->uvc_data = kzalloc(ctrl->info.size * UVC_CTRL_DATA_LAST + 1, in uvc_ctrl_add_info()
2045 if (!ctrl->uvc_data) in uvc_ctrl_add_info()
2046 return -ENOMEM; in uvc_ctrl_add_info()
2048 ctrl->initialized = 1; in uvc_ctrl_add_info()
2051 ctrl->info.entity, ctrl->info.selector, dev->udev->devpath, in uvc_ctrl_add_info()
2052 ctrl->entity->id); in uvc_ctrl_add_info()
2058 * Add a control mapping to a given control.
2061 struct uvc_control *ctrl, const struct uvc_control_mapping *mapping) in __uvc_ctrl_add_mapping() argument
2066 /* Most mappings come from static kernel data and need to be duplicated. in __uvc_ctrl_add_mapping()
2070 map = kmemdup(mapping, sizeof(*mapping), GFP_KERNEL); in __uvc_ctrl_add_mapping()
2072 return -ENOMEM; in __uvc_ctrl_add_mapping()
2074 INIT_LIST_HEAD(&map->ev_subs); in __uvc_ctrl_add_mapping()
2076 size = sizeof(*mapping->menu_info) * mapping->menu_count; in __uvc_ctrl_add_mapping()
2077 map->menu_info = kmemdup(mapping->menu_info, size, GFP_KERNEL); in __uvc_ctrl_add_mapping()
2078 if (map->menu_info == NULL) { in __uvc_ctrl_add_mapping()
2080 return -ENOMEM; in __uvc_ctrl_add_mapping()
2083 if (map->get == NULL) in __uvc_ctrl_add_mapping()
2084 map->get = uvc_get_le_value; in __uvc_ctrl_add_mapping()
2085 if (map->set == NULL) in __uvc_ctrl_add_mapping()
2086 map->set = uvc_set_le_value; in __uvc_ctrl_add_mapping()
2088 list_add_tail(&map->list, &ctrl->info.mappings); in __uvc_ctrl_add_mapping()
2089 uvc_dbg(dev, CONTROL, "Adding mapping '%s' to control %pUl/%u\n", in __uvc_ctrl_add_mapping()
2090 map->name, ctrl->info.entity, ctrl->info.selector); in __uvc_ctrl_add_mapping()
2096 const struct uvc_control_mapping *mapping) in uvc_ctrl_add_mapping() argument
2098 struct uvc_device *dev = chain->dev; in uvc_ctrl_add_mapping()
2105 if (mapping->id & ~V4L2_CTRL_ID_MASK) { in uvc_ctrl_add_mapping()
2107 "Can't add mapping '%s', control id 0x%08x is invalid\n", in uvc_ctrl_add_mapping()
2108 mapping->name, mapping->id); in uvc_ctrl_add_mapping()
2109 return -EINVAL; in uvc_ctrl_add_mapping()
2113 list_for_each_entry(entity, &chain->entities, chain) { in uvc_ctrl_add_mapping()
2117 !uvc_entity_match_guid(entity, mapping->entity)) in uvc_ctrl_add_mapping()
2120 for (i = 0; i < entity->ncontrols; ++i) { in uvc_ctrl_add_mapping()
2121 ctrl = &entity->controls[i]; in uvc_ctrl_add_mapping()
2122 if (ctrl->index == mapping->selector - 1) { in uvc_ctrl_add_mapping()
2132 return -ENOENT; in uvc_ctrl_add_mapping()
2134 if (mutex_lock_interruptible(&chain->ctrl_mutex)) in uvc_ctrl_add_mapping()
2135 return -ERESTARTSYS; in uvc_ctrl_add_mapping()
2140 ret = -ENOENT; in uvc_ctrl_add_mapping()
2144 /* Validate the user-provided bit-size and offset */ in uvc_ctrl_add_mapping()
2145 if (mapping->size > 32 || in uvc_ctrl_add_mapping()
2146 mapping->offset + mapping->size > ctrl->info.size * 8) { in uvc_ctrl_add_mapping()
2147 ret = -EINVAL; in uvc_ctrl_add_mapping()
2151 list_for_each_entry(map, &ctrl->info.mappings, list) { in uvc_ctrl_add_mapping()
2152 if (mapping->id == map->id) { in uvc_ctrl_add_mapping()
2154 "Can't add mapping '%s', control id 0x%08x already exists\n", in uvc_ctrl_add_mapping()
2155 mapping->name, mapping->id); in uvc_ctrl_add_mapping()
2156 ret = -EEXIST; in uvc_ctrl_add_mapping()
2162 if (atomic_inc_return(&dev->nmappings) > UVC_MAX_CONTROL_MAPPINGS) { in uvc_ctrl_add_mapping()
2163 atomic_dec(&dev->nmappings); in uvc_ctrl_add_mapping()
2165 "Can't add mapping '%s', maximum mappings count (%u) exceeded\n", in uvc_ctrl_add_mapping()
2166 mapping->name, UVC_MAX_CONTROL_MAPPINGS); in uvc_ctrl_add_mapping()
2167 ret = -ENOMEM; in uvc_ctrl_add_mapping()
2171 ret = __uvc_ctrl_add_mapping(dev, ctrl, mapping); in uvc_ctrl_add_mapping()
2173 atomic_dec(&dev->nmappings); in uvc_ctrl_add_mapping()
2176 mutex_unlock(&chain->ctrl_mutex); in uvc_ctrl_add_mapping()
2212 controls = entity->processing.bmControls; in uvc_ctrl_prune_entity()
2213 size = entity->processing.bControlSize; in uvc_ctrl_prune_entity()
2219 controls = entity->camera.bmControls; in uvc_ctrl_prune_entity()
2220 size = entity->camera.bControlSize; in uvc_ctrl_prune_entity()
2228 if (!usb_match_one_id(dev->intf, &blacklist[i].id)) in uvc_ctrl_prune_entity()
2237 entity->id, blacklist[i].index); in uvc_ctrl_prune_entity()
2251 const struct uvc_control_mapping *mapping = uvc_ctrl_mappings; in uvc_ctrl_init_ctrl() local
2253 mapping + ARRAY_SIZE(uvc_ctrl_mappings); in uvc_ctrl_init_ctrl()
2260 if (UVC_ENTITY_TYPE(ctrl->entity) == UVC_VC_EXTENSION_UNIT) in uvc_ctrl_init_ctrl()
2264 if (uvc_entity_match_guid(ctrl->entity, info->entity) && in uvc_ctrl_init_ctrl()
2265 ctrl->index == info->index) { in uvc_ctrl_init_ctrl()
2273 uvc_ctrl_get_flags(dev, ctrl, &ctrl->info); in uvc_ctrl_init_ctrl()
2278 if (!ctrl->initialized) in uvc_ctrl_init_ctrl()
2281 for (; mapping < mend; ++mapping) { in uvc_ctrl_init_ctrl()
2282 if (uvc_entity_match_guid(ctrl->entity, mapping->entity) && in uvc_ctrl_init_ctrl()
2283 ctrl->info.selector == mapping->selector) in uvc_ctrl_init_ctrl()
2284 __uvc_ctrl_add_mapping(dev, ctrl, mapping); in uvc_ctrl_init_ctrl()
2296 INIT_WORK(&dev->async_ctrl.work, uvc_ctrl_status_event_work); in uvc_ctrl_init_device()
2299 list_for_each_entry(entity, &dev->entities, list) { in uvc_ctrl_init_device()
2305 bmControls = entity->extension.bmControls; in uvc_ctrl_init_device()
2306 bControlSize = entity->extension.bControlSize; in uvc_ctrl_init_device()
2308 bmControls = entity->processing.bmControls; in uvc_ctrl_init_device()
2309 bControlSize = entity->processing.bControlSize; in uvc_ctrl_init_device()
2311 bmControls = entity->camera.bmControls; in uvc_ctrl_init_device()
2312 bControlSize = entity->camera.bControlSize; in uvc_ctrl_init_device()
2314 bmControls = entity->gpio.bmControls; in uvc_ctrl_init_device()
2315 bControlSize = entity->gpio.bControlSize; in uvc_ctrl_init_device()
2326 entity->controls = kcalloc(ncontrols, sizeof(*ctrl), in uvc_ctrl_init_device()
2328 if (entity->controls == NULL) in uvc_ctrl_init_device()
2329 return -ENOMEM; in uvc_ctrl_init_device()
2330 entity->ncontrols = ncontrols; in uvc_ctrl_init_device()
2333 ctrl = entity->controls; in uvc_ctrl_init_device()
2338 ctrl->entity = entity; in uvc_ctrl_init_device()
2339 ctrl->index = i; in uvc_ctrl_init_device()
2355 struct uvc_control_mapping *mapping, *nm; in uvc_ctrl_cleanup_mappings() local
2357 list_for_each_entry_safe(mapping, nm, &ctrl->info.mappings, list) { in uvc_ctrl_cleanup_mappings()
2358 list_del(&mapping->list); in uvc_ctrl_cleanup_mappings()
2359 kfree(mapping->menu_info); in uvc_ctrl_cleanup_mappings()
2360 kfree(mapping); in uvc_ctrl_cleanup_mappings()
2370 if (dev->async_ctrl.work.func) in uvc_ctrl_cleanup_device()
2371 cancel_work_sync(&dev->async_ctrl.work); in uvc_ctrl_cleanup_device()
2374 list_for_each_entry(entity, &dev->entities, list) { in uvc_ctrl_cleanup_device()
2375 for (i = 0; i < entity->ncontrols; ++i) { in uvc_ctrl_cleanup_device()
2376 struct uvc_control *ctrl = &entity->controls[i]; in uvc_ctrl_cleanup_device()
2378 if (!ctrl->initialized) in uvc_ctrl_cleanup_device()
2382 kfree(ctrl->uvc_data); in uvc_ctrl_cleanup_device()
2385 kfree(entity->controls); in uvc_ctrl_cleanup_device()