On Thu, 25 May 2023 15:17:58 -0400
Harry Wentland <harry.wentland@xxxxxxx> wrote:
> From: Joshua Ashton <joshua@xxxxxxxxx>
>
> To match the other enums, and add more information about these values.
>
> v2:
> - Specify where an enum entry comes from
> - Clarify DEFAULT and NO_DATA behavior
> - BT.2020 CYCC is "constant luminance"
> - correct type for BT.601
>
> v4:
> - drop DP/HDMI clarifications that might create
> more questions than answers
>
> Signed-off-by: Joshua Ashton <joshua@xxxxxxxxx>
> Signed-off-by: Harry Wentland <harry.wentland@xxxxxxx>
> Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
>
> Cc: Pekka Paalanen <ppaalanen@xxxxxxxxx>
> Cc: Sebastian Wick <sebastian.wick@xxxxxxxxxx>
> Cc: Vitaly.Prosyak@xxxxxxx
> Cc: Uma Shankar <uma.shankar@xxxxxxxxx>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Cc: Joshua Ashton <joshua@xxxxxxxxx>
> Cc: Simon Ser <contact@xxxxxxxxxxx>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Cc: Melissa Wen <mwen@xxxxxxxxxx>
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> ---
> include/drm/drm_connector.h | 62 +++++++++++++++++++++++++++++++++++--
> 1 file changed, 60 insertions(+), 2 deletions(-)
>
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 77401e425341..ee597593d7e6 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -363,13 +363,71 @@ enum drm_privacy_screen_status {
> PRIVACY_SCREEN_ENABLED_LOCKED,
> };
>
> -/*
> - * This is a consolidated colorimetry list supported by HDMI and
> +/**
> + * enum drm_colorspace - color space
> + *
> + * This enum is a consolidated colorimetry list supported by HDMI and
> * DP protocol standard. The respective connectors will register
> * a property with the subset of this list (supported by that
> * respective protocol). Userspace will set the colorspace through
> * a colorspace property which will be created and exposed to
> * userspace.
> + *
> + * DP definitions come from the DP v2.0 spec
> + * HDMI definitions come from the CTA-861-H spec
> + *
> + * @DRM_MODE_COLORIMETRY_DEFAULT:
> + * Driver specific behavior.
> + * @DRM_MODE_COLORIMETRY_NO_DATA:
> + * Driver specific behavior.
> + * @DRM_MODE_COLORIMETRY_SMPTE_170M_YCC:
> + * (HDMI)
> + * SMPTE ST 170M colorimetry format
> + * @DRM_MODE_COLORIMETRY_BT709_YCC:
> + * (HDMI, DP)
> + * ITU-R BT.709 colorimetry format
> + * @DRM_MODE_COLORIMETRY_XVYCC_601:
> + * (HDMI, DP)
> + * xvYCC601 colorimetry format
> + * @DRM_MODE_COLORIMETRY_XVYCC_709:
> + * (HDMI, DP)
> + * xvYCC709 colorimetry format
> + * @DRM_MODE_COLORIMETRY_SYCC_601:
> + * (HDMI, DP)
> + * sYCC601 colorimetry format
> + * @DRM_MODE_COLORIMETRY_OPYCC_601:
> + * (HDMI, DP)
> + * opYCC601 colorimetry format
> + * @DRM_MODE_COLORIMETRY_OPRGB:
> + * (HDMI, DP)
> + * opRGB colorimetry format
> + * @DRM_MODE_COLORIMETRY_BT2020_CYCC:
> + * (HDMI, DP)
> + * ITU-R BT.2020 Y'c C'bc C'rc (constant luminance) colorimetry format
> + * @DRM_MODE_COLORIMETRY_BT2020_RGB:
> + * (HDMI, DP)
> + * ITU-R BT.2020 R' G' B' colorimetry format
> + * @DRM_MODE_COLORIMETRY_BT2020_YCC:
> + * (HDMI, DP)
> + * ITU-R BT.2020 Y' C'b C'r colorimetry format
> + * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65:
> + * (HDMI)
> + * SMPTE ST 2113 P3D65 colorimetry format
> + * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER:
> + * (HDMI)
> + * SMPTE ST 2113 P3DCI colorimetry format
> + * @DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED:
> + * (DP)
> + * RGB wide gamut fixed point colorimetry format
> + * @DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT:
> + * (DP)
> + * RGB wide gamut floating point
> + * (scRGB (IEC 61966-2-2)) colorimetry format
> + * @DRM_MODE_COLORIMETRY_BT601_YCC:
> + * (DP)
> + * ITU-R BT.601 colorimetry format
> + * The DP spec does not say whether this is the 525 or the 625
> + * line version.
> */
> enum drm_colorspace {
> /* For Default case, driver will set the colorspace */
This is probably as good as possible, having references to chase when
questions arise.
Acked-by: Pekka Paalanen <pekka.paalanen@xxxxxxxxxxxxx>
Thanks,
pq
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