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-rw-r--r--include/drm/drm_connector.h279
1 files changed, 195 insertions, 84 deletions
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 675cc3f8cf85..97ea41dc678f 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -290,6 +290,10 @@ struct drm_display_info {
#define DRM_BUS_FLAG_DATA_MSB_TO_LSB (1<<4)
/* data is transmitted LSB to MSB on the bus */
#define DRM_BUS_FLAG_DATA_LSB_TO_MSB (1<<5)
+/* drive sync on pos. edge */
+#define DRM_BUS_FLAG_SYNC_POSEDGE (1<<6)
+/* drive sync on neg. edge */
+#define DRM_BUS_FLAG_SYNC_NEGEDGE (1<<7)
/**
* @bus_flags: Additional information (like pixel signal polarity) for
@@ -374,12 +378,9 @@ struct drm_tv_connector_state {
/**
* struct drm_connector_state - mutable connector state
- * @connector: backpointer to the connector
- * @best_encoder: can be used by helpers and drivers to select the encoder
- * @state: backpointer to global drm_atomic_state
- * @tv: TV connector state
*/
struct drm_connector_state {
+ /** @connector: backpointer to the connector */
struct drm_connector *connector;
/**
@@ -390,6 +391,13 @@ struct drm_connector_state {
*/
struct drm_crtc *crtc;
+ /**
+ * @best_encoder:
+ *
+ * Used by the atomic helpers to select the encoder, through the
+ * &drm_connector_helper_funcs.atomic_best_encoder or
+ * &drm_connector_helper_funcs.best_encoder callbacks.
+ */
struct drm_encoder *best_encoder;
/**
@@ -398,6 +406,7 @@ struct drm_connector_state {
*/
enum drm_link_status link_status;
+ /** @state: backpointer to global drm_atomic_state */
struct drm_atomic_state *state;
/**
@@ -407,6 +416,7 @@ struct drm_connector_state {
*/
struct drm_crtc_commit *commit;
+ /** @tv: TV connector state */
struct drm_tv_connector_state tv;
/**
@@ -419,6 +429,14 @@ 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.
*/
@@ -429,6 +447,19 @@ struct drm_connector_state {
* protection. This is most commonly used for HDCP.
*/
unsigned int content_protection;
+
+ /**
+ * @writeback_job: Writeback job for writeback connectors
+ *
+ * Holds the framebuffer and out-fence for a writeback connector. As
+ * the writeback completion may be asynchronous to the normal commit
+ * cycle, the writeback job lifetime is managed separately from the
+ * normal atomic state by this object.
+ *
+ * See also: drm_writeback_queue_job() and
+ * drm_writeback_signal_completion()
+ */
+ struct drm_writeback_job *writeback_job;
};
/**
@@ -530,8 +561,7 @@ struct drm_connector_funcs {
* received for this output connector->edid must be NULL.
*
* Drivers using the probe helpers should use
- * drm_helper_probe_single_connector_modes() or
- * drm_helper_probe_single_connector_modes_nomerge() to implement this
+ * drm_helper_probe_single_connector_modes() to implement this
* function.
*
* RETURNS:
@@ -608,6 +638,8 @@ struct drm_connector_funcs {
* cleaned up by calling the @atomic_destroy_state hook in this
* structure.
*
+ * This callback is mandatory for atomic drivers.
+ *
* Atomic drivers which don't subclass &struct drm_connector_state should use
* drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
* state structure to extend it with driver-private state should use
@@ -634,6 +666,8 @@ struct drm_connector_funcs {
*
* Destroy a state duplicated with @atomic_duplicate_state and release
* or unreference all resources it references
+ *
+ * This callback is mandatory for atomic drivers.
*/
void (*atomic_destroy_state)(struct drm_connector *connector,
struct drm_connector_state *state);
@@ -738,45 +772,6 @@ struct drm_cmdline_mode {
/**
* struct drm_connector - central DRM connector control structure
- * @dev: parent DRM device
- * @kdev: kernel device for sysfs attributes
- * @attr: sysfs attributes
- * @head: list management
- * @base: base KMS object
- * @name: human readable name, can be overwritten by the driver
- * @connector_type: one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
- * @connector_type_id: index into connector type enum
- * @interlace_allowed: can this connector handle interlaced modes?
- * @doublescan_allowed: can this connector handle doublescan?
- * @stereo_allowed: can this connector handle stereo modes?
- * @funcs: connector control functions
- * @edid_blob_ptr: DRM property containing EDID if present
- * @properties: property tracking for this connector
- * @dpms: current dpms state
- * @helper_private: mid-layer private data
- * @cmdline_mode: mode line parsed from the kernel cmdline for this connector
- * @force: a DRM_FORCE_<foo> state for forced mode sets
- * @override_edid: has the EDID been overwritten through debugfs for testing?
- * @encoder_ids: valid encoders for this connector
- * @eld: EDID-like data, if present
- * @latency_present: AV delay info from ELD, if found
- * @video_latency: video latency info from ELD, if found
- * @audio_latency: audio latency info from ELD, if found
- * @null_edid_counter: track sinks that give us all zeros for the EDID
- * @bad_edid_counter: track sinks that give us an EDID with invalid checksum
- * @edid_corrupt: indicates whether the last read EDID was corrupt
- * @debugfs_entry: debugfs directory for this connector
- * @has_tile: is this connector connected to a tiled monitor
- * @tile_group: tile group for the connected monitor
- * @tile_is_single_monitor: whether the tile is one monitor housing
- * @num_h_tile: number of horizontal tiles in the tile group
- * @num_v_tile: number of vertical tiles in the tile group
- * @tile_h_loc: horizontal location of this tile
- * @tile_v_loc: vertical location of this tile
- * @tile_h_size: horizontal size of this tile.
- * @tile_v_size: vertical size of this tile.
- * @scaling_mode_property: Optional atomic property to control the upscaling.
- * @content_protection_property: Optional property to control content protection
*
* Each connector may be connected to one or more CRTCs, or may be clonable by
* another connector if they can share a CRTC. Each connector also has a specific
@@ -784,13 +779,27 @@ struct drm_cmdline_mode {
* span multiple monitors).
*/
struct drm_connector {
+ /** @dev: parent DRM device */
struct drm_device *dev;
+ /** @kdev: kernel device for sysfs attributes */
struct device *kdev;
+ /** @attr: sysfs attributes */
struct device_attribute *attr;
+
+ /**
+ * @head:
+ *
+ * List of all connectors on a @dev, linked from
+ * &drm_mode_config.connector_list. Protected by
+ * &drm_mode_config.connector_list_lock, but please only use
+ * &drm_connector_list_iter to walk this list.
+ */
struct list_head head;
+ /** @base: base KMS object */
struct drm_mode_object base;
+ /** @name: human readable name, can be overwritten by the driver */
char *name;
/**
@@ -808,10 +817,30 @@ struct drm_connector {
*/
unsigned index;
+ /**
+ * @connector_type:
+ * one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
+ */
int connector_type;
+ /** @connector_type_id: index into connector type enum */
int connector_type_id;
+ /**
+ * @interlace_allowed:
+ * Can this connector handle interlaced modes? Only used by
+ * drm_helper_probe_single_connector_modes() for mode filtering.
+ */
bool interlace_allowed;
+ /**
+ * @doublescan_allowed:
+ * Can this connector handle doublescan? Only used by
+ * drm_helper_probe_single_connector_modes() for mode filtering.
+ */
bool doublescan_allowed;
+ /**
+ * @stereo_allowed:
+ * Can this connector handle stereo modes? Only used by
+ * drm_helper_probe_single_connector_modes() for mode filtering.
+ */
bool stereo_allowed;
/**
@@ -860,45 +889,42 @@ struct drm_connector {
* Protected by &drm_mode_config.mutex.
*/
struct drm_display_info display_info;
+
+ /** @funcs: connector control functions */
const struct drm_connector_funcs *funcs;
+ /**
+ * @edid_blob_ptr: DRM property containing EDID if present. Protected by
+ * &drm_mode_config.mutex. This should be updated only by calling
+ * drm_connector_update_edid_property().
+ */
struct drm_property_blob *edid_blob_ptr;
+
+ /** @properties: property tracking for this connector */
struct drm_object_properties properties;
+ /**
+ * @scaling_mode_property: Optional atomic property to control the
+ * upscaling. See drm_connector_attach_content_protection_property().
+ */
struct drm_property *scaling_mode_property;
/**
* @content_protection_property: DRM ENUM property for content
- * protection
+ * protection. See drm_connector_attach_content_protection_property().
*/
struct drm_property *content_protection_property;
/**
* @path_blob_ptr:
*
- * DRM blob property data for the DP MST path property.
+ * DRM blob property data for the DP MST path property. This should only
+ * be updated by calling drm_connector_set_path_property().
*/
struct drm_property_blob *path_blob_ptr;
- /**
- * @tile_blob_ptr:
- *
- * DRM blob property data for the tile property (used mostly by DP MST).
- * This is meant for screens which are driven through separate display
- * pipelines represented by &drm_crtc, which might not be running with
- * genlocked clocks. For tiled panels which are genlocked, like
- * dual-link LVDS or dual-link DSI, the driver should try to not expose
- * the tiling and virtualize both &drm_crtc and &drm_plane if needed.
- */
- struct drm_property_blob *tile_blob_ptr;
-
-/* should we poll this connector for connects and disconnects */
-/* hot plug detectable */
#define DRM_CONNECTOR_POLL_HPD (1 << 0)
-/* poll for connections */
#define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
-/* can cleanly poll for disconnections without flickering the screen */
-/* DACs should rarely do this without a lot of testing */
#define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
/**
@@ -915,25 +941,40 @@ struct drm_connector {
* Periodically poll the connector for connection.
*
* DRM_CONNECTOR_POLL_DISCONNECT
- * Periodically poll the connector for disconnection.
+ * Periodically poll the connector for disconnection, without
+ * causing flickering even when the connector is in use. DACs should
+ * rarely do this without a lot of testing.
*
* Set to 0 for connectors that don't support connection status
* discovery.
*/
uint8_t polled;
- /* requested DPMS state */
+ /**
+ * @dpms: Current dpms state. For legacy drivers the
+ * &drm_connector_funcs.dpms callback must update this. For atomic
+ * drivers, this is handled by the core atomic code, and drivers must
+ * only take &drm_crtc_state.active into account.
+ */
int dpms;
+ /** @helper_private: mid-layer private data */
const struct drm_connector_helper_funcs *helper_private;
- /* forced on connector */
+ /** @cmdline_mode: mode line parsed from the kernel cmdline for this connector */
struct drm_cmdline_mode cmdline_mode;
+ /** @force: a DRM_FORCE_<foo> state for forced mode sets */
enum drm_connector_force force;
+ /** @override_edid: has the EDID been overwritten through debugfs for testing? */
bool override_edid;
#define DRM_CONNECTOR_MAX_ENCODER 3
+ /**
+ * @encoder_ids: Valid encoders for this connector. Please only use
+ * drm_connector_for_each_possible_encoder() to enumerate these.
+ */
uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
+
/**
* @encoder: Currently bound encoder driving this connector, if any.
* Only really meaningful for non-atomic drivers. Atomic drivers should
@@ -943,19 +984,37 @@ struct drm_connector {
struct drm_encoder *encoder;
#define MAX_ELD_BYTES 128
- /* EDID bits */
+ /** @eld: EDID-like data, if present */
uint8_t eld[MAX_ELD_BYTES];
+ /** @latency_present: AV delay info from ELD, if found */
bool latency_present[2];
- int video_latency[2]; /* [0]: progressive, [1]: interlaced */
+ /**
+ * @video_latency: Video latency info from ELD, if found.
+ * [0]: progressive, [1]: interlaced
+ */
+ int video_latency[2];
+ /**
+ * @audio_latency: audio latency info from ELD, if found
+ * [0]: progressive, [1]: interlaced
+ */
int audio_latency[2];
- int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
+ /**
+ * @null_edid_counter: track sinks that give us all zeros for the EDID.
+ * Needed to workaround some HW bugs where we get all 0s
+ */
+ int null_edid_counter;
+
+ /** @bad_edid_counter: track sinks that give us an EDID with invalid checksum */
unsigned bad_edid_counter;
- /* Flag for raw EDID header corruption - used in Displayport
- * compliance testing - * Displayport Link CTS Core 1.2 rev1.1 4.2.2.6
+ /**
+ * @edid_corrupt: Indicates whether the last read EDID was corrupt. Used
+ * in Displayport compliance testing - Displayport Link CTS Core 1.2
+ * rev1.1 4.2.2.6
*/
bool edid_corrupt;
+ /** @debugfs_entry: debugfs directory for this connector */
struct dentry *debugfs_entry;
/**
@@ -963,7 +1022,7 @@ struct drm_connector {
*
* Current atomic state for this connector.
*
- * This is protected by @drm_mode_config.connection_mutex. Note that
+ * This is protected by &drm_mode_config.connection_mutex. Note that
* nonblocking atomic commits access the current connector state without
* taking locks. Either by going through the &struct drm_atomic_state
* pointers, see for_each_oldnew_connector_in_state(),
@@ -974,19 +1033,44 @@ struct drm_connector {
*/
struct drm_connector_state *state;
- /* DisplayID bits */
+ /* DisplayID bits. FIXME: Extract into a substruct? */
+
+ /**
+ * @tile_blob_ptr:
+ *
+ * DRM blob property data for the tile property (used mostly by DP MST).
+ * This is meant for screens which are driven through separate display
+ * pipelines represented by &drm_crtc, which might not be running with
+ * genlocked clocks. For tiled panels which are genlocked, like
+ * dual-link LVDS or dual-link DSI, the driver should try to not expose
+ * the tiling and virtualize both &drm_crtc and &drm_plane if needed.
+ *
+ * This should only be updated by calling
+ * drm_connector_set_tile_property().
+ */
+ struct drm_property_blob *tile_blob_ptr;
+
+ /** @has_tile: is this connector connected to a tiled monitor */
bool has_tile;
+ /** @tile_group: tile group for the connected monitor */
struct drm_tile_group *tile_group;
+ /** @tile_is_single_monitor: whether the tile is one monitor housing */
bool tile_is_single_monitor;
+ /** @num_h_tile: number of horizontal tiles in the tile group */
+ /** @num_v_tile: number of vertical tiles in the tile group */
uint8_t num_h_tile, num_v_tile;
+ /** @tile_h_loc: horizontal location of this tile */
+ /** @tile_v_loc: vertical location of this tile */
uint8_t tile_h_loc, tile_v_loc;
+ /** @tile_h_size: horizontal size of this tile. */
+ /** @tile_v_size: vertical size of this tile. */
uint16_t tile_h_size, tile_v_size;
/**
* @free_node:
*
- * List used only by &drm_connector_iter to be able to clean up a
+ * List used only by &drm_connector_list_iter to be able to clean up a
* connector from any context, in conjunction with
* &drm_mode_config.connector_free_work.
*/
@@ -1001,15 +1085,21 @@ int drm_connector_init(struct drm_device *dev,
int connector_type);
int drm_connector_register(struct drm_connector *connector);
void drm_connector_unregister(struct drm_connector *connector);
-int drm_mode_connector_attach_encoder(struct drm_connector *connector,
+int drm_connector_attach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder);
void drm_connector_cleanup(struct drm_connector *connector);
-static inline unsigned drm_connector_index(struct drm_connector *connector)
+
+static inline unsigned int drm_connector_index(const struct drm_connector *connector)
{
return connector->index;
}
+static inline u32 drm_connector_mask(const struct drm_connector *connector)
+{
+ return 1 << connector->index;
+}
+
/**
* drm_connector_lookup - lookup connector object
* @dev: DRM device
@@ -1089,20 +1179,25 @@ 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);
+void drm_hdmi_avi_infoframe_content_type(struct hdmi_avi_infoframe *frame,
+ const struct drm_connector_state *conn_state);
+
int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
-int drm_mode_connector_set_path_property(struct drm_connector *connector,
- const char *path);
-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);
+int drm_connector_set_path_property(struct drm_connector *connector,
+ const char *path);
+int drm_connector_set_tile_property(struct drm_connector *connector);
+int drm_connector_update_edid_property(struct drm_connector *connector,
+ const struct edid *edid);
+void drm_connector_set_link_status_property(struct drm_connector *connector,
+ uint64_t link_status);
int drm_connector_init_panel_orientation_property(
struct drm_connector *connector, int width, int height);
@@ -1151,6 +1246,9 @@ struct drm_connector *
drm_connector_list_iter_next(struct drm_connector_list_iter *iter);
void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
+bool drm_connector_has_possible_encoder(struct drm_connector *connector,
+ struct drm_encoder *encoder);
+
/**
* drm_for_each_connector_iter - connector_list iterator macro
* @connector: &struct drm_connector pointer used as cursor
@@ -1163,4 +1261,17 @@ void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
#define drm_for_each_connector_iter(connector, iter) \
while ((connector = drm_connector_list_iter_next(iter)))
+/**
+ * drm_connector_for_each_possible_encoder - iterate connector's possible encoders
+ * @connector: &struct drm_connector pointer
+ * @encoder: &struct drm_encoder pointer used as cursor
+ * @__i: int iteration cursor, for macro-internal use
+ */
+#define drm_connector_for_each_possible_encoder(connector, encoder, __i) \
+ for ((__i) = 0; (__i) < ARRAY_SIZE((connector)->encoder_ids) && \
+ (connector)->encoder_ids[(__i)] != 0; (__i)++) \
+ for_each_if((encoder) = \
+ drm_encoder_find((connector)->dev, NULL, \
+ (connector)->encoder_ids[(__i)])) \
+
#endif