Hi Ricardo,
Thank you for the patch.
On Thu, Jan 05, 2023 at 02:52:56PM +0100, Ricardo Ribalda wrote:
> Move the control mapping to uvc_ctrl.c. This way we do not have
> references to UVC controls or V4L2 controls in uvc_driver.c
>
> Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
> ---
> drivers/media/usb/uvc/uvc_ctrl.c | 13 +++++++++++++
> drivers/media/usb/uvc/uvc_driver.c | 18 ------------------
> drivers/media/usb/uvc/uvcvideo.h | 1 +
> 3 files changed, 14 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
> index 9af64f7a23d3..f559a1ac6e3c 100644
> --- a/drivers/media/usb/uvc/uvc_ctrl.c
> +++ b/drivers/media/usb/uvc/uvc_ctrl.c
> @@ -723,6 +723,19 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = {
> },
> };
>
> +const struct uvc_control_mapping uvc_ctrl_power_line_mapping_limited = {
> + .id = V4L2_CID_POWER_LINE_FREQUENCY,
> + .entity = UVC_GUID_UVC_PROCESSING,
> + .selector = UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
> + .size = 2,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_MENU,
> + .data_type = UVC_CTRL_DATA_TYPE_ENUM,
> + .menu_info = power_line_frequency_controls,
> + .menu_mask = GENMASK(V4L2_CID_POWER_LINE_FREQUENCY_60HZ,
> + V4L2_CID_POWER_LINE_FREQUENCY_50HZ),
This also fixes a bug introduced in commit 382075604a68 ("media:
uvcvideo: Limit power line control for Quanta UVC Webcam"). The
offending commit caused the power line control menu entries to have
incorrect indices compared to the V4L2_CID_POWER_LINE_FREQUENCY_*
enumeration. Now that the limited mapping reuses the correct menu_info
array, the indices correctly map to the V4L2 control specification.
I'll add the above paragraph to the commit message, along with a Fixes:
line.
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> +};
> +
> static const struct uvc_control_mapping uvc_ctrl_power_line_mapping_uvc11 = {
> .id = V4L2_CID_POWER_LINE_FREQUENCY,
> .entity = UVC_GUID_UVC_PROCESSING,
> diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
> index e659670ea2d8..37d2b08bc8b2 100644
> --- a/drivers/media/usb/uvc/uvc_driver.c
> +++ b/drivers/media/usb/uvc/uvc_driver.c
> @@ -2378,24 +2378,6 @@ MODULE_PARM_DESC(timeout, "Streaming control requests timeout");
> * Driver initialization and cleanup
> */
>
> -static const struct uvc_menu_info power_line_frequency_controls_limited[] = {
> - { 1, "50 Hz" },
> - { 2, "60 Hz" },
> -};
> -
> -static const struct uvc_control_mapping uvc_ctrl_power_line_mapping_limited = {
> - .id = V4L2_CID_POWER_LINE_FREQUENCY,
> - .entity = UVC_GUID_UVC_PROCESSING,
> - .selector = UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
> - .size = 2,
> - .offset = 0,
> - .v4l2_type = V4L2_CTRL_TYPE_MENU,
> - .data_type = UVC_CTRL_DATA_TYPE_ENUM,
> - .menu_info = power_line_frequency_controls_limited,
> - .menu_mask =
> - GENMASK(ARRAY_SIZE(power_line_frequency_controls_limited) - 1, 0),
> -};
> -
> static const struct uvc_device_info uvc_ctrl_power_line_limited = {
> .mappings = (const struct uvc_control_mapping *[]) {
> &uvc_ctrl_power_line_mapping_limited,
> diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
> index a8eec43cd860..1b2d9f327583 100644
> --- a/drivers/media/usb/uvc/uvcvideo.h
> +++ b/drivers/media/usb/uvc/uvcvideo.h
> @@ -747,6 +747,7 @@ int uvc_status_start(struct uvc_device *dev, gfp_t flags);
> void uvc_status_stop(struct uvc_device *dev);
>
> /* Controls */
> +extern const struct uvc_control_mapping uvc_ctrl_power_line_mapping_limited;
> extern const struct v4l2_subscribed_event_ops uvc_ctrl_sub_ev_ops;
>
> int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
>
--
Regards,
Laurent Pinchart
