On Tue, May 08, 2018 at 07:18:20AM +0000, Lisovskiy, Stanislav wrote:
> On Mon, 2018-05-07 at 16:05 +0200, Daniel Vetter wrote:
> > On Mon, May 07, 2018 at 04:16:40PM +0300, StanLis wrote:
> > > From: Stanislav Lisovskiy <stanislav.lisovs...@intel.com>
> > >
> > > Added content_type property to drm_connector_state
> > > in order to properly handle external HDMI TV content-type setting.
> > >
> > > v2:
> > > * Moved helper function which attaches content type property
> > > to the drm core, as was suggested.
> > > Removed redundant connector state initialization.
> > >
> > > v3:
> > > * Removed caps in drm_content_type_enum_list.
> > > After some discussion it turned out that HDMI Spec 1.4
> > > was wrongly assuming that IT Content(itc) bit doesn't affect
> > > Content type states, however itc bit needs to be manupulated
> > > as well. In order to not expose additional property for itc,
> > > for sake of simplicity it was decided to bind those together
> > > in same "content type" property.
> > >
> > > v4:
> > > * Added it_content checking in
> > > intel_digital_connector_atomic_check.
> > > Fixed documentation for new content type enum.
> > >
> > > v5:
> > > * Moved patch revision's description to commit messages.
> > >
> > > v6:
> > > * Minor naming fix for the content type enumeration string.
> > >
> > > v7:
> > > * Fix parameter name for documentation and parameter alignment
> > > in order not to get warning. Added Content Type description to
> > > new HDMI connector properties section.
> > >
> > > v8:
> > > * Thrown away unneeded numbers from HDMI content-type property
> > > description. Switch to strings desription instead of plain
> > > definitions.
> > >
> > > v9:
> > > * Moved away hdmi specific content-type enum from
> > > drm_connector_state. Content type property should probably not
> > > be bound to any specific connector interface in
> > > drm_connector_state.
> > > Same probably should be done to hdmi_picture_aspect_ration enum
> > > which is also contained in drm_connector_state. Added special
> > > helper function to get derive hdmi specific relevant infoframe
> > > fields.
> > >
> > > Signed-off-by: Stanislav Lisovskiy <stanislav.lisovs...@intel.com>
> > > ---
> > > Documentation/gpu/drm-kms.rst | 6 +++
> > > Documentation/gpu/kms-properties.csv | 1 +
> > > drivers/gpu/drm/drm_atomic.c | 4 ++
> > > drivers/gpu/drm/drm_connector.c | 74
> > > ++++++++++++++++++++++++++++
> > > drivers/gpu/drm/drm_edid.c | 55 +++++++++++++++++++++
> > > include/drm/drm_connector.h | 12 +++++
> > > include/drm/drm_edid.h | 6 +++
> > > include/drm/drm_mode_config.h | 5 ++
> > > include/uapi/drm/drm_mode.h | 7 +++
> > > 9 files changed, 170 insertions(+)
> > >
> > > diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-
> > > kms.rst
> > > index 1dffd1ac4cd4..e233c2626bd0 100644
> > > --- a/Documentation/gpu/drm-kms.rst
> > > +++ b/Documentation/gpu/drm-kms.rst
> > > @@ -517,6 +517,12 @@ Standard Connector Properties
> > > .. kernel-doc:: drivers/gpu/drm/drm_connector.c
> > > :doc: standard connector properties
> > >
> > > +HDMI Specific Connector Properties
> > > +-----------------------------
> > > +
> > > +.. kernel-doc:: drivers/gpu/drm/drm_connector.c
> > > + :doc: HDMI connector properties
> > > +
> > > Plane Composition Properties
> > > ----------------------------
> > >
> > > diff --git a/Documentation/gpu/kms-properties.csv
> > > b/Documentation/gpu/kms-properties.csv
> > > index 07ed22ea3bd6..bfde04eddd14 100644
> > > --- a/Documentation/gpu/kms-properties.csv
> > > +++ b/Documentation/gpu/kms-properties.csv
> > > @@ -17,6 +17,7 @@ Owner Module/Drivers,Group,Property
> > > Name,Type,Property Values,Object attached,De
> > > ,Virtual GPU,“suggested X”,RANGE,"Min=0,
> > > Max=0xffffffff",Connector,property to suggest an X offset for a
> > > connector
> > > ,,“suggested Y”,RANGE,"Min=0, Max=0xffffffff",Connector,property
> > > to suggest an Y offset for a connector
> > > ,Optional,"""aspect ratio""",ENUM,"{ ""None"", ""4:3"", ""16:9""
> > > }",Connector,TDB
> > > +,Optional,"""content type""",ENUM,"{ ""No Data"", ""Graphics"",
> > > ""Photo"", ""Cinema"", ""Game"" }",Connector,TBD
> > > i915,Generic,"""Broadcast RGB""",ENUM,"{ ""Automatic"", ""Full"",
> > > ""Limited 16:235"" }",Connector,"When this property is set to
> > > Limited 16:235 and CTM is set, the hardware will be programmed with
> > > the result of the multiplication of CTM by the limited range matrix
> > > to ensure the pixels normaly in the range 0..1.0 are remapped to
> > > the range 16/255..235/255."
> > > ,,“audio”,ENUM,"{ ""force-dvi"", ""off"", ""auto"", ""on""
> > > }",Connector,TBD
> > > ,SDVO-TV,“mode”,ENUM,"{ ""NTSC_M"", ""NTSC_J"", ""NTSC_443"",
> > > ""PAL_B"" } etc.",Connector,TBD
> > > diff --git a/drivers/gpu/drm/drm_atomic.c
> > > b/drivers/gpu/drm/drm_atomic.c
> > > index 3d9ae057a6cd..6c1e1e774517 100644
> > > --- a/drivers/gpu/drm/drm_atomic.c
> > > +++ b/drivers/gpu/drm/drm_atomic.c
> > > @@ -1270,6 +1270,8 @@ static int
> > > drm_atomic_connector_set_property(struct drm_connector *connector,
> > > state->link_status = val;
> > > } else if (property == config->aspect_ratio_property) {
> > > state->picture_aspect_ratio = val;
> > > + } else if (property == config->content_type_property) {
> > > + state->content_type = val;
> > > } else if (property == connector->scaling_mode_property) {
> > > state->scaling_mode = val;
> > > } else if (property == connector-
> > > >content_protection_property) {
> > > @@ -1355,6 +1357,8 @@ drm_atomic_connector_get_property(struct
> > > drm_connector *connector,
> > > *val = state->link_status;
> > > } else if (property == config->aspect_ratio_property) {
> > > *val = state->picture_aspect_ratio;
> > > + } else if (property == config->content_type_property) {
> > > + *val = state->content_type;
> > > } else if (property == connector->scaling_mode_property) {
> > > *val = state->scaling_mode;
> > > } else if (property == connector-
> > > >content_protection_property) {
> > > diff --git a/drivers/gpu/drm/drm_connector.c
> > > b/drivers/gpu/drm/drm_connector.c
> > > index b3cde897cd80..fe63395f159d 100644
> > > --- a/drivers/gpu/drm/drm_connector.c
> > > +++ b/drivers/gpu/drm/drm_connector.c
> > > @@ -720,6 +720,14 @@ static const struct drm_prop_enum_list
> > > drm_aspect_ratio_enum_list[] = {
> > > { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" },
> > > };
> > >
> > > +static const struct drm_prop_enum_list
> > > drm_content_type_enum_list[] = {
> > > + { DRM_MODE_CONTENT_TYPE_NO_DATA, "No Data" },
> > > + { DRM_MODE_CONTENT_TYPE_GRAPHICS, "Graphics" },
> > > + { DRM_MODE_CONTENT_TYPE_PHOTO, "Photo" },
> > > + { DRM_MODE_CONTENT_TYPE_CINEMA, "Cinema" },
> > > + { DRM_MODE_CONTENT_TYPE_GAME, "Game" },
> > > +};
> > > +
> > > static const struct drm_prop_enum_list
> > > drm_panel_orientation_enum_list[] = {
> > > { DRM_MODE_PANEL_ORIENTATION_NORMAL, "Normal"
> > > },
> > > { DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP, "Upside
> > > Down" },
> > > @@ -996,6 +1004,45 @@ int drm_mode_create_dvi_i_properties(struct
> > > drm_device *dev)
> > > }
> > > EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
> > >
> > > +
> > > +/**
> > > + * DOC: HDMI connector properties
> > > + *
> > > + * content type (HDMI specific):
> > > + * Indicates content type setting to be used in HDMI
> > > infoframes to indicate
> > > + * content type for the external device, so that it adjusts
> > > it's display
> > > + * settings accordingly.
> > > + *
> > > + * The value of this property can be one of the following:
> > > + *
> > > + * No Data:
> > > + * Content type is unknown
> > > + * Graphics:
> > > + * Content type is graphics
> > > + * Photo:
> > > + * Content type is photo
> > > + * Cinema:
> > > + * Content type is cinema
> > > + * Game:
> > > + * Content type is game
> >
> > Links to the function that set up/use the property would be good
> > here.
> > I.e.
> >
> > "Drivers can set up this property by calling
> > drm_connector_attach_content_type_property(). Decoding to
> > infoframe values is done through
> > drm_hdmi_get_content_type_from_property() and
> > drm_hdmi_get_itc_bit_from_property()."
> >
> > Aside: A simple helper that computes the correct infoframes from the
> > drm_connector_state and drm_display_info, without forcing drivers to
> > call
> > a gazillion individual helper functions would be real nice. But
> > that's for
> > someone else I think - all the verbosity here simply annoys me a bit.
> >
> > With the above kerneldoc polish:
> >
> > Acked-by: Daniel Vetter <daniel.vet...@ffwll.ch>
> > -Daniel
>
> Yep, I suggested that, adding some single function could be more proper
> approach - there is even already a function called
> drm_hdmi_avi_infoframe_from_display_mode, I initially suggested that
> it would be convenient to add it there, however as I understood from
> discussion with Ville, not all drivers support atomic properties,
> otherwise certainly it would be much easier to have it in a single
> function.
Yes not everything is atomic, but we can pretty much require atomic for
new drivers. We'd need to make a new function though which takes
drm_connector_state into account (so that non-atomic drivers can keep
calling drm_hdmi_avi_infoframe_from_display_mode). For that overall
function we'd probably want:
drm_hdmi_avi_infoframe_from_state(struct hdmi_avi_infoframe *frame,
struct drm_connector_state *conn_state,
struct drm_crtc_state *crtc_state);
display_info we can get at through conn_state->connector.display_info, and
mode we can reach through crtc_state->adjusted_mode.
But yeah probably better to do that with the next little hdmi infoframe
thing we're going to support, or as a follow-up.
-Daniel
>
> > > + */
> > > +
> > > +/**
> > > + * drm_connector_attach_content_type_property - attach content-
> > > type property
> > > + * @connector: connector to attach content type property on.
> > > + *
> > > + * Called by a driver the first time a HDMI connector is made.
> > > + */
> > > +int drm_connector_attach_content_type_property(struct
> > > drm_connector *connector)
> > > +{
> > > + if (!drm_mode_create_content_type_property(connector-
> > > >dev))
> > > + drm_object_attach_property(&connector->base,
> > > + connector->dev-
> > > >mode_config.content_type_property,
> > > + DRM_MODE_CONTENT_TYPE_N
> > > O_DATA);
> > > + return 0;
> > > +}
> > > +EXPORT_SYMBOL(drm_connector_attach_content_type_property);
> > > +
> > > /**
> > > * drm_create_tv_properties - create TV specific connector
> > > properties
> > > * @dev: DRM device
> > > @@ -1260,6 +1307,33 @@ int
> > > drm_mode_create_aspect_ratio_property(struct drm_device *dev)
> > > }
> > > EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
> > >
> > > +/**
> > > + * drm_mode_create_content_type_property - create content type
> > > property
> > > + * @dev: DRM device
> > > + *
> > > + * Called by a driver the first time it's needed, must be attached
> > > to desired
> > > + * connectors.
> > > + *
> > > + * Returns:
> > > + * Zero on success, negative errno on failure.
> > > + */
> > > +int drm_mode_create_content_type_property(struct drm_device *dev)
> > > +{
> > > + if (dev->mode_config.content_type_property)
> > > + return 0;
> > > +
> > > + dev->mode_config.content_type_property =
> > > + drm_property_create_enum(dev, 0, "content type",
> > > + drm_content_type_enum_lis
> > > t,
> > > + ARRAY_SIZE(drm_content_ty
> > > pe_enum_list));
> > > +
> > > + if (dev->mode_config.content_type_property == NULL)
> > > + return -ENOMEM;
> > > +
> > > + return 0;
> > > +}
> > > +EXPORT_SYMBOL(drm_mode_create_content_type_property);
> >
> > Do we really need to export this? Drivers should only call
> > drm_connector_attach_content_type_property() I think ...
>
> All of those property creation functions are exported, I was
> just following those as example:
>
> EXPORT_SYMBOL(drm_mode_create_tv_properties);
> EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
> EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
>
> and so on.
>
> >
> > > +
> > > /**
> > > * drm_mode_create_suggested_offset_properties - create suggests
> > > offset properties
> > > * @dev: DRM device
> > > diff --git a/drivers/gpu/drm/drm_edid.c
> > > b/drivers/gpu/drm/drm_edid.c
> > > index 134069f36482..9ecda0b2a4d8 100644
> > > --- a/drivers/gpu/drm/drm_edid.c
> > > +++ b/drivers/gpu/drm/drm_edid.c
> > > @@ -4868,6 +4868,14 @@
> > > drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe
> > > *frame,
> > >
> > > frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
> > >
> > > + /*
> > > + * As some drivers don't support atomic, we can't use
> > > connector state.
> > > + * So just initialize the frame with default values, just
> > > the same way
> > > + * as it's done with other properties here.
> > > + */
> > > + frame->content_type = HDMI_CONTENT_TYPE_GRAPHICS;
> > > + frame->itc = 0;
> > > +
> > > /*
> > > * Populate picture aspect ratio from either
> > > * user input (if specified) or from the CEA mode list.
> > > @@ -4886,6 +4894,53 @@
> > > drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe
> > > *frame,
> > > }
> > > EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
> > >
> > > +/**
> > > + * drm_hdmi_get_itc_bit_from_property() - get the HDMI IT content
> > > bit
> > > + * from content type
> > > property.
> > > + * content_type: Content type DRM property value
> > > + *
> > > + */
> > > +bool
> > > +drm_hdmi_get_itc_bit_from_property(unsigned int content_type)
> > > +{
> > > + /* Whenever something else than "No Data", IT Content bit
> > > must be set */
> > > + return content_type != DRM_MODE_CONTENT_TYPE_NO_DATA ?
> > > true : false;
> > > +}
> > > +EXPORT_SYMBOL(drm_hdmi_get_itc_bit_from_property);
> > > +
> > > +/**
> > > + * drm_hdmi_get_content_type_from_property() - get the HDMI
> > > content type bits
> > > + * from content type
> > > property.
> > > + * content_type: Content type DRM property value
> > > + *
> > > + */
> > > +enum hdmi_content_type
> > > +drm_hdmi_get_content_type_from_property(unsigned int content_type)
> > > +{
> > > + enum hdmi_content_type ret;
> > > +
> > > + switch (content_type) {
> > > + case DRM_MODE_CONTENT_TYPE_GRAPHICS:
> > > + ret = HDMI_CONTENT_TYPE_GRAPHICS;
> > > + break;
> > > + case DRM_MODE_CONTENT_TYPE_CINEMA:
> > > + ret = HDMI_CONTENT_TYPE_CINEMA;
> > > + break;
> > > + case DRM_MODE_CONTENT_TYPE_GAME:
> > > + ret = HDMI_CONTENT_TYPE_GAME;
> > > + break;
> > > + case DRM_MODE_CONTENT_TYPE_PHOTO:
> > > + ret = HDMI_CONTENT_TYPE_PHOTO;
> > > + break;
> > > + default:
> > > + /* Graphics is the default(0) */
> > > + ret = HDMI_CONTENT_TYPE_GRAPHICS;
> > > + }
> > > + return ret;
> > > +}
> > > +EXPORT_SYMBOL(drm_hdmi_get_content_type_from_property);
> > > +
> > > +
> > > /**
> > > * drm_hdmi_avi_infoframe_quant_range() - fill the HDMI AVI
> > > infoframe
> > > * quantization range
> > > information
> > > diff --git a/include/drm/drm_connector.h
> > > b/include/drm/drm_connector.h
> > > index 675cc3f8cf85..178fa3f3f5f7 100644
> > > --- a/include/drm/drm_connector.h
> > > +++ b/include/drm/drm_connector.h
> > > @@ -418,6 +418,16 @@ struct drm_connector_state {
> > > */
> > > enum hdmi_picture_aspect picture_aspect_ratio;
> > >
> > > +
> > > + /**
> > > + * @content_type: Connector property to control the
> > > + * HDMI infoframe content type setting.
> > > + * The %DRM_MODE_CONTENT_TYPE_\* values much
> > > + * match the values.
> > > + */
> > > + unsigned int content_type;
> > > +
> > > +
> > > /**
> > > * @scaling_mode: Connector property to control the
> > > * upscaling, mostly used for built-in panels.
> > > @@ -1089,11 +1099,13 @@ int drm_mode_create_tv_properties(struct
> > > drm_device *dev,
> > > unsigned int num_modes,
> > > const char * const modes[]);
> > > int drm_mode_create_scaling_mode_property(struct drm_device *dev);
> > > +int drm_connector_attach_content_type_property(struct
> > > drm_connector *dev);
> > > int drm_connector_attach_scaling_mode_property(struct
> > > drm_connector *connector,
> > > u32
> > > scaling_mode_mask);
> > > int drm_connector_attach_content_protection_property(
> > > struct drm_connector *connector);
> > > int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
> > > +int drm_mode_create_content_type_property(struct drm_device *dev);
> > > int drm_mode_create_suggested_offset_properties(struct drm_device
> > > *dev);
> > >
> > > int drm_mode_connector_set_path_property(struct drm_connector
> > > *connector,
> > > diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
> > > index 8d89a9c3748d..4e264c4d8a9b 100644
> > > --- a/include/drm/drm_edid.h
> > > +++ b/include/drm/drm_edid.h
> > > @@ -350,6 +350,12 @@ drm_load_edid_firmware(struct drm_connector
> > > *connector)
> > > }
> > > #endif
> > >
> > > +bool
> > > +drm_hdmi_get_itc_bit_from_property(unsigned int content_type);
> > > +
> > > +enum hdmi_content_type
> > > +drm_hdmi_get_content_type_from_property(unsigned int
> > > content_type);
> > > +
> > > int
> > > drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe
> > > *frame,
> > > const struct
> > > drm_display_mode *mode,
> > > diff --git a/include/drm/drm_mode_config.h
> > > b/include/drm/drm_mode_config.h
> > > index 33b3a96d66d0..fb45839179dd 100644
> > > --- a/include/drm/drm_mode_config.h
> > > +++ b/include/drm/drm_mode_config.h
> > > @@ -726,6 +726,11 @@ struct drm_mode_config {
> > > * HDMI infoframe aspect ratio setting.
> > > */
> > > struct drm_property *aspect_ratio_property;
> > > + /**
> > > + * @content_type_property: Optional connector property to
> > > control the
> > > + * HDMI infoframe content type setting.
> > > + */
> > > + struct drm_property *content_type_property;
> > > /**
> > > * @degamma_lut_property: Optional CRTC property to set
> > > the LUT used to
> > > * convert the framebuffer's colors to linear gamma.
> > > diff --git a/include/uapi/drm/drm_mode.h
> > > b/include/uapi/drm/drm_mode.h
> > > index 50bcf4214ff9..cad9e09ffaee 100644
> > > --- a/include/uapi/drm/drm_mode.h
> > > +++ b/include/uapi/drm/drm_mode.h
> > > @@ -94,6 +94,13 @@ extern "C" {
> > > #define DRM_MODE_PICTURE_ASPECT_4_3 1
> > > #define DRM_MODE_PICTURE_ASPECT_16_9 2
> > >
> > > +/* Content type options */
> > > +#define DRM_MODE_CONTENT_TYPE_NO_DATA 0
> > > +#define DRM_MODE_CONTENT_TYPE_GRAPHICS 1
> > > +#define DRM_MODE_CONTENT_TYPE_PHOTO 2
> > > +#define DRM_MODE_CONTENT_TYPE_CINEMA 3
> > > +#define DRM_MODE_CONTENT_TYPE_GAME 4
> > > +
> > > /* Aspect ratio flag bitmask (4 bits 22:19) */
> > > #define DRM_MODE_FLAG_PIC_AR_MASK (0x0F<<19)
> > > #define DRM_MODE_FLAG_PIC_AR_NONE \
> > > --
> > > 2.17.0
> > >
> > > _______________________________________________
> > > Intel-gfx mailing list
> > > intel-...@lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> >
> >
> --
> Best Regards,
>
> Lisovskiy Stanislav
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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