[Intel-gfx] [v7 2/2] drm/i915: Attach colorspace property and enable modeset
Shankar, Uma
uma.shankar at intel.com
Tue Jan 29 14:31:05 UTC 2019
>-----Original Message-----
>From: Maarten Lankhorst [mailto:maarten.lankhorst at linux.intel.com]
>Sent: Tuesday, January 29, 2019 5:56 PM
>To: Shankar, Uma <uma.shankar at intel.com>; intel-gfx at lists.freedesktop.org;
>dri-devel at lists.freedesktop.org
>Cc: Syrjala, Ville <ville.syrjala at intel.com>; Lankhorst, Maarten
><maarten.lankhorst at intel.com>
>Subject: Re: [Intel-gfx] [v7 2/2] drm/i915: Attach colorspace property and enable
>modeset
>
>Op 28-01-2019 om 09:44 schreef Uma Shankar:
>> This patch attaches the colorspace connector property to the hdmi
>> connector. Based on colorspace change, modeset will be triggered to
>> switch to new colorspace.
>>
>> Based on colorspace property value create an infoframe with
>> appropriate colorspace. This can be used to send an infoframe packet
>> with proper colorspace value set which will help to enable wider color
>> gamut like BT2020 on sink.
>>
>> This patch attaches and enables HDMI colorspace, DP will be taken care
>> separately.
>>
>> v2: Merged the changes of creating infoframe as well to this patch as
>> per Maarten's suggestion.
>>
>> v3: Addressed review comments from Shashank. Separated HDMI and DP
>> colorspaces as suggested by Ville and Maarten.
>>
>> v4: Addressed Chris and Ville's review comments, and created a common
>> colorspace property for DP and HDMI, filtered the list based on the
>> colorspaces supported by the respective protocol standard. Handle the
>> default case properly.
>>
>> v5: Added Platform specific colorspace enums and called the property
>> creation helper using the same.
>>
>> v6: Addressed Shashank's review comments.
>>
>> v7: Rebase
>>
>> Signed-off-by: Uma Shankar <uma.shankar at intel.com>
>> Reviewed-by: Shashank Sharma <shashank.sharma at intel.com>
>> ---
>> drivers/gpu/drm/i915/intel_atomic.c | 1 +
>> drivers/gpu/drm/i915/intel_connector.c | 63
>++++++++++++++++++++++++++++++++++
>> drivers/gpu/drm/i915/intel_drv.h | 1 +
>> drivers/gpu/drm/i915/intel_hdmi.c | 19 ++++++++++
>> 4 files changed, 84 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_atomic.c
>> b/drivers/gpu/drm/i915/intel_atomic.c
>> index 16263ad..76b7114 100644
>> --- a/drivers/gpu/drm/i915/intel_atomic.c
>> +++ b/drivers/gpu/drm/i915/intel_atomic.c
>> @@ -124,6 +124,7 @@ int intel_digital_connector_atomic_check(struct
>drm_connector *conn,
>> */
>> if (new_conn_state->force_audio != old_conn_state->force_audio ||
>> new_conn_state->broadcast_rgb != old_conn_state->broadcast_rgb
>> ||
>> + new_state->colorspace != old_state->colorspace ||
>> new_conn_state->base.picture_aspect_ratio != old_conn_state-
>>base.picture_aspect_ratio ||
>> new_conn_state->base.content_type != old_conn_state-
>>base.content_type ||
>> new_conn_state->base.scaling_mode !=
>> old_conn_state->base.scaling_mode)
>> diff --git a/drivers/gpu/drm/i915/intel_connector.c
>> b/drivers/gpu/drm/i915/intel_connector.c
>> index ee16758..114fcf2 100644
>> --- a/drivers/gpu/drm/i915/intel_connector.c
>> +++ b/drivers/gpu/drm/i915/intel_connector.c
>> @@ -30,6 +30,48 @@
>> #include "intel_drv.h"
>> #include "i915_drv.h"
>>
>> +static const struct drm_prop_enum_list gen10_hdmi_colorspaces[] = {
>> + /* For Default case, driver will set the colorspace */
>> + { COLORIMETRY_DEFAULT, "Default" },
>> + /* Standard Definition Colorimetry based on CEA 861 */
>> + { COLORIMETRY_ITU_601, "ITU_601" },
>> + { COLORIMETRY_ITU_709, "ITU_709" },
>> + /* Standard Definition Colorimetry based on IEC 61966-2-4 */
>> + { COLORIMETRY_XV_YCC_601, "XV_YCC_601" },
>> + /* High Definition Colorimetry based on IEC 61966-2-4 */
>> + { COLORIMETRY_XV_YCC_709, "XV_YCC_709" },
>> + /* Colorimetry based on IEC 61966-2-1/Amendment 1 */
>> + { COLORIMETRY_S_YCC_601, "S_YCC_601" },
>> + /* Colorimetry based on IEC 61966-2-5 [33] */
>> + { COLORIMETRY_OPYCC_601, "opYCC_601" },
>> + /* Colorimetry based on IEC 61966-2-5 */
>> + { COLORIMETRY_OPRGB, "opRGB" },
>> + /* Colorimetry based on ITU-R BT.2020 */
>> + { COLORIMETRY_BT2020_RGB, "BT2020_RGB" },
>> + /* Colorimetry based on ITU-R BT.2020 */
>> + { COLORIMETRY_BT2020_YCC, "BT2020_YCC" },
>> + /* Colorimetry based on ITU-R BT.2020 */
>> + { COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" }, };
>> +
>> +static const struct drm_prop_enum_list legacy_hdmi_colorspaces[] = {
>> + /* For Default case, driver will set the colorspace */
>> + { COLORIMETRY_DEFAULT, "Default" },
>> + /* Standard Definition Colorimetry based on CEA 861 */
>> + { COLORIMETRY_ITU_601, "ITU_601" },
>> + { COLORIMETRY_ITU_709, "ITU_709" },
>> + /* Standard Definition Colorimetry based on IEC 61966-2-4 */
>> + { COLORIMETRY_XV_YCC_601, "XV_YCC_601" },
>> + /* High Definition Colorimetry based on IEC 61966-2-4 */
>> + { COLORIMETRY_XV_YCC_709, "XV_YCC_709" },
>> + /* Colorimetry based on IEC 61966-2-1/Amendment 1 */
>> + { COLORIMETRY_S_YCC_601, "S_YCC_601" },
>> + /* Colorimetry based on IEC 61966-2-5 [33] */
>> + { COLORIMETRY_OPYCC_601, "opYCC_601" },
>> + /* Colorimetry based on IEC 61966-2-5 */
>> + { COLORIMETRY_OPRGB, "opRGB" },
>> +};
>> +
>> int intel_connector_init(struct intel_connector *connector) {
>> struct intel_digital_connector_state *conn_state; @@ -265,3 +307,24
>> @@ int intel_ddc_get_modes(struct drm_connector *connector,
>> connector->dev->mode_config.aspect_ratio_property,
>> DRM_MODE_PICTURE_ASPECT_NONE);
>> }
>> +
>> +void
>> +intel_attach_colorspace_property(struct drm_connector *connector) {
>> + struct drm_device *dev = connector->dev;
>> + struct drm_i915_private *dev_priv = to_i915(dev);
>> +
>> + if (INTEL_GEN(dev_priv) >= 10) {
>> + if (!drm_mode_create_colorspace_property(connector,
>> + gen10_hdmi_colorspaces,
>> + ARRAY_SIZE(gen10_hdmi_colorspaces)))
>> + drm_object_attach_property(&connector->base,
>> + connector->colorspace_property, 0);
>> + } else {
>> + if (!drm_mode_create_colorspace_property(connector,
>> + legacy_hdmi_colorspaces,
>> + ARRAY_SIZE(legacy_hdmi_colorspaces)))
>> + drm_object_attach_property(&connector->base,
>> + connector->colorspace_property, 0);
>> + }
>> +}
>> diff --git a/drivers/gpu/drm/i915/intel_drv.h
>> b/drivers/gpu/drm/i915/intel_drv.h
>> index 85b913e..5178a9a 100644
>> --- a/drivers/gpu/drm/i915/intel_drv.h
>> +++ b/drivers/gpu/drm/i915/intel_drv.h
>> @@ -1783,6 +1783,7 @@ int intel_connector_update_modes(struct
>> drm_connector *connector, void
>> intel_attach_force_audio_property(struct drm_connector *connector);
>> void intel_attach_broadcast_rgb_property(struct drm_connector
>> *connector); void intel_attach_aspect_ratio_property(struct
>> drm_connector *connector);
>> +void intel_attach_colorspace_property(struct drm_connector
>> +*connector);
>>
>> /* intel_csr.c */
>> void intel_csr_ucode_init(struct drm_i915_private *); diff --git
>> a/drivers/gpu/drm/i915/intel_hdmi.c
>> b/drivers/gpu/drm/i915/intel_hdmi.c
>> index 97a98e1..7b7948f 100644
>> --- a/drivers/gpu/drm/i915/intel_hdmi.c
>> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
>> @@ -498,6 +498,24 @@ static void intel_hdmi_set_avi_infoframe(struct
>intel_encoder *encoder,
>> else
>> frame.avi.colorspace = HDMI_COLORSPACE_RGB;
>>
>> + if (conn_state->colorspace == COLORIMETRY_DEFAULT) {
>> + /* Set ITU 709 as default for HDMI */
>> + frame.avi.colorimetry = COLORIMETRY_ITU_709;
>> + } else if (conn_state->colorspace < COLORIMETRY_XV_YCC_601) {
>> + frame.avi.colorimetry = conn_state->colorspace;
>> + } else {
>> + frame.avi.colorimetry = HDMI_COLORIMETRY_EXTENDED;
>> + /*
>> + * Starting from extended list where COLORIMETRY_XV_YCC_601
>> + * is the first extended mode and its value is 0 as per HDMI
>> + * specification.
>> + * TODO: This needs to be extended for LSPCON implementation
>> + * as well. Will be implemented separately.
>> + */
>
>Just to clarify, there is no way to set the property for LSPCON currently I hope?
>
>Else we should at least reject it..
Yes, currently LSPCON support is not there. Will add that later as described in TODO.
Will not register this property if lspcon as you suggested, so that no one tries to set that
on LSPCON device.
>> + frame.avi.extended_colorimetry = conn_state->colorspace -
>> + COLORIMETRY_XV_YCC_601;
>> + }
>> +
>> drm_hdmi_avi_infoframe_quant_range(&frame.avi,
>> conn_state->connector,
>> adjusted_mode,
>> @@ -2147,6 +2165,7 @@ static void intel_hdmi_destroy(struct drm_connector
>*connector)
>> intel_attach_force_audio_property(connector);
>> intel_attach_broadcast_rgb_property(connector);
>> intel_attach_aspect_ratio_property(connector);
>> + intel_attach_colorspace_property(connector);
>> drm_connector_attach_content_type_property(connector);
>> connector->state->picture_aspect_ratio =
>HDMI_PICTURE_ASPECT_NONE;
>>
>
>This patch was acked-by Jani Nikula <jani.nikula at linux.intel.com> for merging
>through drm-misc, so waiting for new version with 1/2 fixed, then looks ready. :)
Thanks Jani and Maarten. Will re-send the series with your comments fixed.
Regards,
Uma Shankar
More information about the dri-devel
mailing list