linux-kernel - Re: [PATCH v3 3/3] media: uvcvideo: Refactor power_line_frequency_controls

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Message-ID: <Y7SY/eXJ2HPShSRa@pendragon.ideasonboard.com>
Date:   Tue, 3 Jan 2023 23:07:09 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Ricardo Ribalda <ribalda@...omium.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: Re: [PATCH v3 3/3] media: uvcvideo: Refactor
 power_line_frequency_controls_limited

Hi Ricardo,

Thank you for the patch.

On Tue, Jan 03, 2023 at 12:01:23PM +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

s/uvc/UVC/
s/v4l2/V4L2/

> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
> ---
>  drivers/media/usb/uvc/uvc_ctrl.c   | 17 +++++++++++++++++
>  drivers/media/usb/uvc/uvc_driver.c | 17 -----------------
>  drivers/media/usb/uvc/uvcvideo.h   |  1 +

This conflicts quite badly with 8/8 from your v4l2-compliance series.
Could you rebase one of top of the other and resend the two patches as
one series, on top of
https://git.kernel.org/pub/scm/linux/kernel/git/pinchartl/linux.git/log/?h=next/uvc
?

>  3 files changed, 18 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
> index d8283d71bc96..4ff0415d8bf4 100644
> --- a/drivers/media/usb/uvc/uvc_ctrl.c
> +++ b/drivers/media/usb/uvc/uvc_ctrl.c
> @@ -370,6 +370,11 @@ static const struct uvc_menu_info power_line_frequency_controls[] = {
>  	{ 3, "Auto" },
>  };
>  
> +static const struct uvc_menu_info power_line_frequency_controls_limited[] = {
> +	{ 1, "50 Hz" },
> +	{ 2, "60 Hz" },
> +};
> +
>  static const struct uvc_menu_info exposure_auto_controls[] = {
>  	{ 2, "Auto Mode" },
>  	{ 1, "Manual Mode" },
> @@ -751,6 +756,18 @@ static const struct uvc_control_mapping uvc_ctrl_mappings_uvc15[] = {
>  	},
>  };
>  
> +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_count	= ARRAY_SIZE(power_line_frequency_controls_limited),
> +};
> +
>  /* ------------------------------------------------------------------------
>   * Utility functions
>   */
> diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
> index 9c09bc988278..6531aed5d642 100644
> --- a/drivers/media/usb/uvc/uvc_driver.c
> +++ b/drivers/media/usb/uvc/uvc_driver.c
> @@ -2377,23 +2377,6 @@ static const struct uvc_device_info uvc_ctrl_power_line_uvc11 = {
>  	},
>  };
>  
> -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_count	= ARRAY_SIZE(power_line_frequency_controls_limited),
> -};
> -
>  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 bcb0b0c101c8..818ae7a6f9b9 100644
> --- a/drivers/media/usb/uvc/uvcvideo.h
> +++ b/drivers/media/usb/uvc/uvcvideo.h
> @@ -728,6 +728,7 @@ 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 uvc_control_mapping uvc_ctrl_power_line_mapping_uvc11;
>  extern const struct v4l2_subscribed_event_ops uvc_ctrl_sub_ev_ops;
>  

-- 
Regards,

Laurent Pinchart