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media: uvcvideo: Use control names from framework 

The framework already contains a map of IDs to names, lets use it when
possible.

Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Suggested-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Ricardo Ribalda 2021-06-18 14:29:15 +02:00 коммит произвёл Mauro Carvalho Chehab
Родитель 8865c53703
Коммит 70fa906d6f
3 изменённых файлов: 30 добавлений и 37 удалений
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57
drivers/media/usb/uvc/uvc_ctrl.c
Просмотреть файл

@ -432,7 +432,6 @@ static void uvc_ctrl_set_rel_speed(struct uvc_control_mapping *mapping,
static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
{
.id = V4L2_CID_BRIGHTNESS,
.name = "Brightness",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_BRIGHTNESS_CONTROL,
.size = 16,
@ -442,7 +441,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_CONTRAST,
.name = "Contrast",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_CONTRAST_CONTROL,
.size = 16,
@ -452,7 +450,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_HUE,
.name = "Hue",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_HUE_CONTROL,
.size = 16,
@ -464,7 +461,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_SATURATION,
.name = "Saturation",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_SATURATION_CONTROL,
.size = 16,
@ -474,7 +470,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_SHARPNESS,
.name = "Sharpness",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_SHARPNESS_CONTROL,
.size = 16,
@ -484,7 +479,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_GAMMA,
.name = "Gamma",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_GAMMA_CONTROL,
.size = 16,
@ -494,7 +488,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_BACKLIGHT_COMPENSATION,
.name = "Backlight Compensation",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_BACKLIGHT_COMPENSATION_CONTROL,
.size = 16,
@ -504,7 +497,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_GAIN,
.name = "Gain",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_GAIN_CONTROL,
.size = 16,
@ -514,7 +506,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_POWER_LINE_FREQUENCY,
.name = "Power Line Frequency",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
.size = 2,
@ -526,7 +517,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_HUE_AUTO,
.name = "Hue, Auto",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_HUE_AUTO_CONTROL,
.size = 1,
@ -537,7 +527,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_EXPOSURE_AUTO,
.name = "Exposure, Auto",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_AE_MODE_CONTROL,
.size = 4,
@ -550,7 +539,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_EXPOSURE_AUTO_PRIORITY,
.name = "Exposure, Auto Priority",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_AE_PRIORITY_CONTROL,
.size = 1,
@ -560,7 +548,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_EXPOSURE_ABSOLUTE,
.name = "Exposure (Absolute)",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL,
.size = 32,
@ -572,7 +559,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_AUTO_WHITE_BALANCE,
.name = "White Balance Temperature, Auto",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL,
.size = 1,
@ -583,7 +569,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_WHITE_BALANCE_TEMPERATURE,
.name = "White Balance Temperature",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL,
.size = 16,
@ -595,7 +580,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_AUTO_WHITE_BALANCE,
.name = "White Balance Component, Auto",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL,
.size = 1,
@ -607,7 +591,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_BLUE_BALANCE,
.name = "White Balance Blue Component",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL,
.size = 16,
@ -619,7 +602,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_RED_BALANCE,
.name = "White Balance Red Component",
.entity = UVC_GUID_UVC_PROCESSING,
.selector = UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL,
.size = 16,
@ -631,7 +613,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_FOCUS_ABSOLUTE,
.name = "Focus (absolute)",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_FOCUS_ABSOLUTE_CONTROL,
.size = 16,
@ -643,7 +624,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_FOCUS_AUTO,
.name = "Focus, Auto",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_FOCUS_AUTO_CONTROL,
.size = 1,
@ -654,7 +634,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_IRIS_ABSOLUTE,
.name = "Iris, Absolute",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_IRIS_ABSOLUTE_CONTROL,
.size = 16,
@ -664,7 +643,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_IRIS_RELATIVE,
.name = "Iris, Relative",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_IRIS_RELATIVE_CONTROL,
.size = 8,
@ -674,7 +652,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_ZOOM_ABSOLUTE,
.name = "Zoom, Absolute",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_ZOOM_ABSOLUTE_CONTROL,
.size = 16,
@ -684,7 +661,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_ZOOM_CONTINUOUS,
.name = "Zoom, Continuous",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_ZOOM_RELATIVE_CONTROL,
.size = 0,
@ -696,7 +672,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_PAN_ABSOLUTE,
.name = "Pan (Absolute)",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_PANTILT_ABSOLUTE_CONTROL,
.size = 32,
@ -706,7 +681,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_TILT_ABSOLUTE,
.name = "Tilt (Absolute)",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_PANTILT_ABSOLUTE_CONTROL,
.size = 32,
@ -716,7 +690,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_PAN_SPEED,
.name = "Pan (Speed)",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_PANTILT_RELATIVE_CONTROL,
.size = 16,
@ -728,7 +701,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_TILT_SPEED,
.name = "Tilt (Speed)",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_PANTILT_RELATIVE_CONTROL,
.size = 16,
@ -740,7 +712,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_PRIVACY,
.name = "Privacy",
.entity = UVC_GUID_UVC_CAMERA,
.selector = UVC_CT_PRIVACY_CONTROL,
.size = 1,
@ -750,7 +721,6 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
},
{
.id = V4L2_CID_PRIVACY,
.name = "Privacy",
.entity = UVC_GUID_EXT_GPIO_CONTROLLER,
.selector = UVC_CT_PRIVACY_CONTROL,
.size = 1,
@ -1072,6 +1042,20 @@ static int uvc_query_v4l2_class(struct uvc_video_chain *chain, u32 req_id,
return 0;
}
static const char *uvc_map_get_name(const struct uvc_control_mapping *map)
{
const char *name;
if (map->name)
return map->name;
name = v4l2_ctrl_get_name(map->id);
if (name)
return name;
return "Unknown Control";
}
static int __uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
struct uvc_control *ctrl,
struct uvc_control_mapping *mapping,
@ -1085,7 +1069,8 @@ static int __uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
memset(v4l2_ctrl, 0, sizeof(*v4l2_ctrl));
v4l2_ctrl->id = mapping->id;
v4l2_ctrl->type = mapping->v4l2_type;
strscpy(v4l2_ctrl->name, mapping->name, sizeof(v4l2_ctrl->name));
strscpy(v4l2_ctrl->name, uvc_map_get_name(mapping),
sizeof(v4l2_ctrl->name));
v4l2_ctrl->flags = 0;
if (!(ctrl->info.flags & UVC_CTRL_FLAG_GET_CUR))
@ -2177,7 +2162,8 @@ static int __uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
list_add_tail(&map->list, &ctrl->info.mappings);
uvc_dbg(chain->dev, CONTROL, "Adding mapping '%s' to control %pUl/%u\n",
map->name, ctrl->info.entity, ctrl->info.selector);
uvc_map_get_name(map), ctrl->info.entity,
ctrl->info.selector);
return 0;
}
@ -2195,7 +2181,7 @@ int uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
if (mapping->id & ~V4L2_CTRL_ID_MASK) {
uvc_dbg(dev, CONTROL,
"Can't add mapping '%s', control id 0x%08x is invalid\n",
mapping->name, mapping->id);
uvc_map_get_name(mapping), mapping->id);
return -EINVAL;
}
@ -2242,7 +2228,7 @@ int uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
if (mapping->id == map->id) {
uvc_dbg(dev, CONTROL,
"Can't add mapping '%s', control id 0x%08x already exists\n",
mapping->name, mapping->id);
uvc_map_get_name(mapping), mapping->id);
ret = -EEXIST;
goto done;
}
@ -2253,7 +2239,7 @@ int uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
atomic_dec(&dev->nmappings);
uvc_dbg(dev, CONTROL,
"Can't add mapping '%s', maximum mappings count (%u) exceeded\n",
mapping->name, UVC_MAX_CONTROL_MAPPINGS);
uvc_map_get_name(mapping), UVC_MAX_CONTROL_MAPPINGS);
ret = -ENOMEM;
goto done;
}
@ -2462,6 +2448,7 @@ static void uvc_ctrl_cleanup_mappings(struct uvc_device *dev,
list_for_each_entry_safe(mapping, nm, &ctrl->info.mappings, list) {
list_del(&mapping->list);
kfree(mapping->menu_info);
kfree(mapping->name);
kfree(mapping);
}
}

8
drivers/media/usb/uvc/uvc_v4l2.c
Просмотреть файл

@ -40,7 +40,13 @@ static int uvc_ioctl_ctrl_map(struct uvc_video_chain *chain,
return -ENOMEM;
map->id = xmap->id;
memcpy(map->name, xmap->name, sizeof(map->name));
/* Non standard control id. */
if (v4l2_ctrl_get_name(map->id) == NULL) {
map->name = kmemdup(xmap->name, sizeof(xmap->name),
GFP_KERNEL);
if (!map->name)
return -ENOMEM;
}
memcpy(map->entity, xmap->entity, sizeof(map->entity));
map->selector = xmap->selector;
map->size = xmap->size;

2
drivers/media/usb/uvc/uvcvideo.h
Просмотреть файл

@ -241,7 +241,7 @@ struct uvc_control_mapping {
struct list_head ev_subs;
u32 id;
u8 name[32];
char *name;
u8 entity[16];
u8 selector;