diff options
Diffstat (limited to 'include/drm/drm_connector.h')
| -rw-r--r-- | include/drm/drm_connector.h | 127 |
1 files changed, 114 insertions, 13 deletions
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index e5e1eddd19fb..f8b766d70a46 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -87,6 +87,69 @@ enum subpixel_order { SubPixelVerticalRGB, SubPixelVerticalBGR, SubPixelNone, + +}; + +/** + * struct drm_scrambling: sink's scrambling support. + */ +struct drm_scrambling { + /** + * @supported: scrambling supported for rates > 340 Mhz. + */ + bool supported; + /** + * @low_rates: scrambling supported for rates <= 340 Mhz. + */ + bool low_rates; +}; + +/* + * struct drm_scdc - Information about scdc capabilities of a HDMI 2.0 sink + * + * Provides SCDC register support and capabilities related information on a + * HDMI 2.0 sink. In case of a HDMI 1.4 sink, all parameter must be 0. + */ +struct drm_scdc { + /** + * @supported: status control & data channel present. + */ + bool supported; + /** + * @read_request: sink is capable of generating scdc read request. + */ + bool read_request; + /** + * @scrambling: sink's scrambling capabilities + */ + struct drm_scrambling scrambling; +}; + + +/** + * struct drm_hdmi_info - runtime information about the connected HDMI sink + * + * Describes if a given display supports advanced HDMI 2.0 features. + * This information is available in CEA-861-F extension blocks (like HF-VSDB). + */ +struct drm_hdmi_info { + struct drm_scdc scdc; +}; + +/** + * enum drm_link_status - connector's link_status property value + * + * This enum is used as the connector's link status property value. + * It is set to the values defined in uapi. + * + * @DRM_LINK_STATUS_GOOD: DP Link is Good as a result of successful + * link training + * @DRM_LINK_STATUS_BAD: DP Link is BAD as a result of link training + * failure + */ +enum drm_link_status { + DRM_LINK_STATUS_GOOD = DRM_MODE_LINK_STATUS_GOOD, + DRM_LINK_STATUS_BAD = DRM_MODE_LINK_STATUS_BAD, }; /** @@ -188,6 +251,11 @@ struct drm_display_info { * @cea_rev: CEA revision of the HDMI sink. */ u8 cea_rev; + + /** + * @hdmi: advance features of a HDMI sink. + */ + struct drm_hdmi_info hdmi; }; int drm_display_info_set_bus_formats(struct drm_display_info *info, @@ -243,6 +311,12 @@ struct drm_connector_state { struct drm_encoder *best_encoder; + /** + * @link_status: Connector link_status to keep track of whether link is + * GOOD or BAD to notify userspace if retraining is necessary. + */ + enum drm_link_status link_status; + struct drm_atomic_state *state; struct drm_tv_connector_state tv; @@ -795,25 +869,50 @@ static inline struct drm_connector *drm_connector_lookup(struct drm_device *dev, } /** - * drm_connector_reference - incr the connector refcnt - * @connector: connector + * drm_connector_get - acquire a connector reference + * @connector: DRM connector * * This function increments the connector's refcount. */ +static inline void drm_connector_get(struct drm_connector *connector) +{ + drm_mode_object_get(&connector->base); +} + +/** + * drm_connector_put - release a connector reference + * @connector: DRM connector + * + * This function decrements the connector's reference count and frees the + * object if the reference count drops to zero. + */ +static inline void drm_connector_put(struct drm_connector *connector) +{ + drm_mode_object_put(&connector->base); +} + +/** + * drm_connector_reference - acquire a connector reference + * @connector: DRM connector + * + * This is a compatibility alias for drm_connector_get() and should not be + * used by new code. + */ static inline void drm_connector_reference(struct drm_connector *connector) { - drm_mode_object_reference(&connector->base); + drm_connector_get(connector); } /** - * drm_connector_unreference - unref a connector - * @connector: connector to unref + * drm_connector_unreference - release a connector reference + * @connector: DRM connector * - * This function decrements the connector's refcount and frees it if it drops to zero. + * This is a compatibility alias for drm_connector_put() and should not be + * used by new code. */ static inline void drm_connector_unreference(struct drm_connector *connector) { - drm_mode_object_unreference(&connector->base); + drm_connector_put(connector); } const char *drm_get_connector_status_name(enum drm_connector_status status); @@ -837,6 +936,8 @@ int drm_mode_connector_set_path_property(struct drm_connector *connector, int drm_mode_connector_set_tile_property(struct drm_connector *connector); int drm_mode_connector_update_edid_property(struct drm_connector *connector, const struct edid *edid); +void drm_mode_connector_set_link_status_property(struct drm_connector *connector, + uint64_t link_status); /** * struct drm_tile_group - Tile group metadata @@ -882,7 +983,7 @@ void drm_mode_put_tile_group(struct drm_device *dev, * * This iterator tracks state needed to be able to walk the connector_list * within struct drm_mode_config. Only use together with - * drm_connector_list_iter_get(), drm_connector_list_iter_put() and + * drm_connector_list_iter_begin(), drm_connector_list_iter_end() and * drm_connector_list_iter_next() respectively the convenience macro * drm_for_each_connector_iter(). */ @@ -892,11 +993,11 @@ struct drm_connector_list_iter { struct drm_connector *conn; }; -void drm_connector_list_iter_get(struct drm_device *dev, - struct drm_connector_list_iter *iter); +void drm_connector_list_iter_begin(struct drm_device *dev, + struct drm_connector_list_iter *iter); struct drm_connector * drm_connector_list_iter_next(struct drm_connector_list_iter *iter); -void drm_connector_list_iter_put(struct drm_connector_list_iter *iter); +void drm_connector_list_iter_end(struct drm_connector_list_iter *iter); /** * drm_for_each_connector_iter - connector_list iterator macro @@ -904,8 +1005,8 @@ void drm_connector_list_iter_put(struct drm_connector_list_iter *iter); * @iter: &struct drm_connector_list_iter * * Note that @connector is only valid within the list body, if you want to use - * @connector after calling drm_connector_list_iter_put() then you need to grab - * your own reference first using drm_connector_reference(). + * @connector after calling drm_connector_list_iter_end() then you need to grab + * your own reference first using drm_connector_begin(). */ #define drm_for_each_connector_iter(connector, iter) \ while ((connector = drm_connector_list_iter_next(iter))) |