WebSVN – Kolibri OS – Diff – /drivers/include/drm/drm_crtc.h

  * @active: whether the CRTC is actively displaying (used for DPMS)
  * @planes_changed: planes on this crtc are updated
  * @mode_changed: crtc_state->mode or crtc_state->enable has been changed
  * @active_changed: crtc_state->active has been toggled.
  * @connectors_changed: connectors to this crtc have been updated
+ * @color_mgmt_changed: color management properties have changed (degamma or
+ *	gamma LUT or CSC matrix)
  * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
  * @connector_mask: bitmask of (1 << drm_connector_index(connector)) of attached connectors
+ * @encoder_mask: bitmask of (1 << drm_encoder_index(encoder)) of attached encoders
  * @last_vblank_count: for helpers and drivers to capture the vblank of the
  * 	update to ensure framebuffer cleanup isn't done too early
  * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
  * @mode: current mode timings
+ * @degamma_lut: Lookup table for converting framebuffer pixel data
+ *	before apply the conversion matrix
+ * @ctm: Transformation matrix
+ * @gamma_lut: Lookup table for converting pixel data after the
+ *	conversion matrix
  * @event: optional pointer to a DRM event to signal upon completion of the
  * 	state update
  * @state: backpointer to global drm_atomic_state
+ *
  * Note that the distinction between @enable and @active is rather subtile:
 	/* computed state bits used by helpers and drivers */
 	bool planes_changed : 1;
 	bool mode_changed : 1;
 	bool active_changed : 1;
 	bool connectors_changed : 1;
+	bool color_mgmt_changed : 1;
 	/* attached planes bitmask:
 	 * WARNING: transitional helpers do not maintain plane_mask so
 	 * drivers not converted over to atomic helpers should not rely
 	 * on plane_mask being accurate!
 	 */
 	u32 plane_mask;
 	u32 connector_mask;
-	u32 connector_mask;
+	u32 encoder_mask;
 	struct drm_display_mode mode;
 	/* blob property to expose current mode to atomic userspace */
+	struct drm_property_blob *mode_blob;
+	/* blob property to expose color management to userspace */
+	struct drm_property_blob *degamma_lut;
+	struct drm_property_blob *ctm;
-	struct drm_property_blob *mode_blob;
+	struct drm_property_blob *gamma_lut;
 	struct drm_pending_vblank_event *event;
 	struct drm_display_mode hwmode;
 	int x, y;
 	const struct drm_crtc_funcs *funcs;
-	/* CRTC gamma size for reporting to userspace */
+	/* Legacy FB CRTC gamma size for reporting to userspace */
 	uint32_t gamma_size;
 	uint16_t *gamma_store;
 	 * &drm_encoder it's called right before the encoder's ->disable(),
 	 * ->prepare() or ->dpms() hook from struct &drm_encoder_helper_funcs.
+	 *
 	 * The bridge can assume that the display pipe (i.e. clocks and timing
 	 * signals) feeding it is still running when this callback is called.
+	 *
+	 * The disable callback is optional.
 	 */
 	void (*disable)(struct drm_bridge *bridge);
 	/**
 	 * ->prepare() or ->dpms() hook from struct &drm_encoder_helper_funcs.
+	 *
 	 * The bridge must assume that the display pipe (i.e. clocks and timing
 	 * singals) feeding it is no longer running when this callback is
 	 * called.
+	 *
+	 * The post_disable callback is optional.
 	 */
 	void (*post_disable)(struct drm_bridge *bridge);
 	/**
+	 *
 	 * The display pipe (i.e. clocks and timing signals) feeding this bridge
 	 * will not yet be running when this callback is called. The bridge must
 	 * not enable the display link feeding the next bridge in the chain (if
 	 * there is one) when this callback is called.
+	 *
+	 * The pre_enable callback is optional.
 	 */
 	void (*pre_enable)(struct drm_bridge *bridge);
 	/**
+	 *
 	 * The bridge can assume that the display pipe (i.e. clocks and timing
 	 * signals) feeding it is running when this callback is called. This
 	 * callback must enable the display link feeding the next bridge in the
 	 * chain if there is one.
+	 *
+	 * The enable callback is optional.
 	 */
 	void (*enable)(struct drm_bridge *bridge);
 };
 /**
  * struct drm_atomic_state - the global state object for atomic updates
  * @dev: parent DRM device
  * @allow_modeset: allow full modeset
  * @legacy_cursor_update: hint to enforce legacy cursor IOCTL semantics
+ * @legacy_set_config: Disable conflicting encoders instead of failing with -EINVAL.
  * @planes: pointer to array of plane pointers
  * @plane_states: pointer to array of plane states pointers
  * @crtcs: pointer to array of CRTC pointers
  * @crtc_states: pointer to array of CRTC states pointers
  * @num_connector: size of the @connectors and @connector_states arrays
  */
 struct drm_atomic_state {
 	struct drm_device *dev;
 	bool allow_modeset : 1;
 	bool legacy_cursor_update : 1;
+	bool legacy_set_config : 1;
 	struct drm_plane **planes;
 	struct drm_plane_state **plane_states;
 	struct drm_crtc **crtcs;
 	struct drm_crtc_state **crtc_states;
 	int num_connector;
  * @poll_running: track polling status for this device
  * @output_poll_work: delayed work for polling in process context
  * @property_blob_list: list of all the blob property objects
  * @blob_lock: mutex for blob property allocation and management
  * @*_property: core property tracking
+ * @degamma_lut_property: LUT used to convert the framebuffer's colors to linear
+ *	gamma
+ * @degamma_lut_size_property: size of the degamma LUT as supported by the
+ *	driver (read-only)
+ * @ctm_property: Matrix used to convert colors after the lookup in the
+ *	degamma LUT
+ * @gamma_lut_property: LUT used to convert the colors, after the CSC matrix, to
+ *	the gamma space of the connected screen (read-only)
+ * @gamma_lut_size_property: size of the gamma LUT as supported by the driver
  * @preferred_depth: preferred RBG pixel depth, used by fb helpers
  * @prefer_shadow: hint to userspace to prefer shadow-fb rendering
  * @async_page_flip: does this device support async flips on the primary plane?
  * @cursor_width: hint to userspace for max cursor width
  * @cursor_height: hint to userspace for max cursor height
 	/* Optional properties */
 	struct drm_property *scaling_mode_property;
 	struct drm_property *aspect_ratio_property;
 	struct drm_property *dirty_info_property;
+	/* Optional color correction properties */
+	struct drm_property *degamma_lut_property;
+	struct drm_property *degamma_lut_size_property;
+	struct drm_property *ctm_property;
+	struct drm_property *gamma_lut_property;
+	struct drm_property *gamma_lut_size_property;
 	/* properties for virtual machine layout */
 	struct drm_property *suggested_x_property;
 	struct drm_property *suggested_y_property;
  */
 #define drm_for_each_plane_mask(plane, dev, plane_mask) \
 	list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \
 		for_each_if ((plane_mask) & (1 << drm_plane_index(plane)))
+/**
+ * drm_for_each_encoder_mask - iterate over encoders specified by bitmask
+ * @encoder: the loop cursor
+ * @dev: the DRM device
+ * @encoder_mask: bitmask of encoder indices
+ *
+ * Iterate over all encoders specified by bitmask.
+ */
+#define drm_for_each_encoder_mask(encoder, dev, encoder_mask) \
+	list_for_each_entry((encoder), &(dev)->mode_config.encoder_list, head) \
 		for_each_if ((encoder_mask) & (1 << drm_encoder_index(encoder)))
 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
 extern __printf(5, 6)
 int drm_encoder_init(struct drm_device *dev,
-			    struct drm_encoder *encoder,
+		     struct drm_encoder *encoder,
-			    const struct drm_encoder_funcs *funcs,
+		     const struct drm_encoder_funcs *funcs,
 		     int encoder_type, const char *name, ...);
+extern unsigned int drm_encoder_index(struct drm_encoder *encoder);
 /**
  * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
  * @encoder: encoder to test
 extern void drm_property_destroy_user_blobs(struct drm_device *dev,
                                             struct drm_file *file_priv);
 extern bool drm_probe_ddc(struct i2c_adapter *adapter);
 extern struct edid *drm_get_edid(struct drm_connector *connector,
 				 struct i2c_adapter *adapter);
+extern struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,
+					    struct i2c_adapter *adapter);
 extern struct edid *drm_edid_duplicate(const struct edid *edid);
 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
 extern void drm_mode_config_init(struct drm_device *dev);
 extern void drm_mode_config_reset(struct drm_device *dev);
 extern void drm_mode_config_cleanup(struct drm_device *dev);
 				 int *bpp);
 extern int drm_format_num_planes(uint32_t format);
 extern int drm_format_plane_cpp(uint32_t format, int plane);
 extern int drm_format_horz_chroma_subsampling(uint32_t format);
 extern int drm_format_vert_chroma_subsampling(uint32_t format);
+extern int drm_format_plane_width(int width, uint32_t format, int plane);
+extern int drm_format_plane_height(int height, uint32_t format, int plane);
 extern const char *drm_get_format_name(uint32_t format);
 extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
 							      unsigned int supported_rotations);
 extern unsigned int drm_rotation_simplify(unsigned int rotation,
 					  unsigned int supported_rotations);
 	struct drm_mode_object *mo;
 	mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY);
 	return mo ? obj_to_property(mo) : NULL;
+}
+/*
+ * Extract a degamma/gamma LUT value provided by user and round it to the
+ * precision supported by the hardware.
+ */
+static inline uint32_t drm_color_lut_extract(uint32_t user_input,
+					     uint32_t bit_precision)
+{
+	uint32_t val = user_input + (1 << (16 - bit_precision - 1));
+	uint32_t max = 0xffff >> (16 - bit_precision);
+	val >>= 16 - bit_precision;
+	return clamp_val(val, 0, max);
+}
 /* Plane list iterator for legacy (overlay only) planes. */
 #define drm_for_each_legacy_plane(plane, dev) \
 	list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \

Subversion Repositories Kolibri OS

(root)/drivers/include/drm/drm_crtc.h – Rev 6936 → 7143