drm/display/drm_dp_helper.h

47 int drm_dp_read_clock_recovery_delay(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE],
49 int drm_dp_read_channel_eq_delay(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE],
52 void drm_dp_link_train_clock_recovery_delay(const struct drm_dp_aux *aux,
55 void drm_dp_link_train_channel_eq_delay(const struct drm_dp_aux *aux,
57 void drm_dp_lttpr_link_train_channel_eq_delay(const struct drm_dp_aux *aux,
60 int drm_dp_128b132b_read_aux_rd_interval(struct drm_dp_aux *aux);
255  * DisplayPort AUX channel
259  * struct drm_dp_aux_msg - DisplayPort AUX channel transaction
279  * struct drm_dp_aux_cec - DisplayPort CEC-Tunneling-over-AUX
281  * @adap: the CEC adapter for CEC-Tunneling-over-AUX support.
293  * struct drm_dp_aux - DisplayPort AUX channel
295  * An AUX channel can also be used to transport I2C messages to a sink. A
307 	 * @name: user-visible name of this AUX channel and the
308 	 * I2C-over-AUX adapter.
316 	 * @ddc: I2C adapter that can be used for I2C-over-AUX
323 	 * AUX channel.
328 	 * @drm_dev: pointer to the &drm_device that owns this AUX channel.
332 	 * It should be set to the &drm_device that will be using this AUX
342 	 * AUX channel
366 	 * @transfer: transfers a message representing a single AUX
390 	 * - If the @dev providing the AUX bus is currently unpowered then
398 	 *   drm_panel driver is initiating a DP AUX transfer it may power
403 	ssize_t (*transfer)(struct drm_dp_aux *aux,
418 	 * DP controller is ready to send AUX transactions.
429 	 * that's associated with the DP AUX channel. This is different from
434 	int (*wait_hpd_asserted)(struct drm_dp_aux *aux, unsigned long wait_us);
445 	 * @cec: struct containing fields used for CEC-Tunneling-over-AUX.
449 	 * @is_remote: Is this AUX CH actually using sideband messaging.
459 int drm_dp_dpcd_probe(struct drm_dp_aux *aux, unsigned int offset);
460 void drm_dp_dpcd_set_powered(struct drm_dp_aux *aux, bool powered);
461 ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,
463 ssize_t drm_dp_dpcd_write(struct drm_dp_aux *aux, unsigned int offset,
468  * @aux: DisplayPort AUX channel
475 static inline ssize_t drm_dp_dpcd_readb(struct drm_dp_aux *aux,  in drm_dp_dpcd_readb()  argument
478 	return drm_dp_dpcd_read(aux, offset, valuep, 1);  in drm_dp_dpcd_readb()
483  * @aux: DisplayPort AUX channel
490 static inline ssize_t drm_dp_dpcd_writeb(struct drm_dp_aux *aux,  in drm_dp_dpcd_writeb()  argument
493 	return drm_dp_dpcd_write(aux, offset, &value, 1);  in drm_dp_dpcd_writeb()
496 int drm_dp_read_dpcd_caps(struct drm_dp_aux *aux,
499 int drm_dp_dpcd_read_link_status(struct drm_dp_aux *aux,
502 int drm_dp_dpcd_read_phy_link_status(struct drm_dp_aux *aux,
506 bool drm_dp_send_real_edid_checksum(struct drm_dp_aux *aux,
509 int drm_dp_read_downstream_info(struct drm_dp_aux *aux,
535 int drm_dp_downstream_id(struct drm_dp_aux *aux, char id[6]);
540 			     struct drm_dp_aux *aux);
553 int drm_dp_read_sink_count(struct drm_dp_aux *aux);
555 int drm_dp_read_lttpr_common_caps(struct drm_dp_aux *aux,
558 int drm_dp_read_lttpr_phy_caps(struct drm_dp_aux *aux,
568 void drm_dp_remote_aux_init(struct drm_dp_aux *aux);
569 void drm_dp_aux_init(struct drm_dp_aux *aux);
570 int drm_dp_aux_register(struct drm_dp_aux *aux);
571 void drm_dp_aux_unregister(struct drm_dp_aux *aux);
573 int drm_dp_start_crc(struct drm_dp_aux *aux, struct drm_crtc *crtc);
574 int drm_dp_stop_crc(struct drm_dp_aux *aux);
594 int drm_dp_read_desc(struct drm_dp_aux *aux, struct drm_dp_desc *desc,
631 	 * The DSC caps can be read from the physical aux instead.
662  * @aux_enable: Does the panel support the AUX enable cap?
663  * @aux_set: Does the panel support setting the brightness through AUX?
679 drm_edp_backlight_init(struct drm_dp_aux *aux, struct drm_edp_backlight_info *bl,
682 int drm_edp_backlight_set_level(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl,
684 int drm_edp_backlight_enable(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl,
686 int drm_edp_backlight_disable(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl);
691 int drm_panel_dp_aux_backlight(struct drm_panel *panel, struct drm_dp_aux *aux);
696 					     struct drm_dp_aux *aux)  in drm_panel_dp_aux_backlight()  argument
704 void drm_dp_cec_irq(struct drm_dp_aux *aux);
705 void drm_dp_cec_register_connector(struct drm_dp_aux *aux,
707 void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux);
708 void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid);
709 void drm_dp_cec_unset_edid(struct drm_dp_aux *aux);
711 static inline void drm_dp_cec_irq(struct drm_dp_aux *aux)  in drm_dp_cec_irq()  argument
716 drm_dp_cec_register_connector(struct drm_dp_aux *aux,  in drm_dp_cec_register_connector()  argument
721 static inline void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux)  in drm_dp_cec_unregister_connector()  argument
725 static inline void drm_dp_cec_set_edid(struct drm_dp_aux *aux,  in drm_dp_cec_set_edid()  argument
730 static inline void drm_dp_cec_unset_edid(struct drm_dp_aux *aux)  in drm_dp_cec_unset_edid()  argument
754 int drm_dp_get_phy_test_pattern(struct drm_dp_aux *aux,
756 int drm_dp_set_phy_test_pattern(struct drm_dp_aux *aux,
760 int drm_dp_pcon_frl_prepare(struct drm_dp_aux *aux, bool enable_frl_ready_hpd);
761 bool drm_dp_pcon_is_frl_ready(struct drm_dp_aux *aux);
762 int drm_dp_pcon_frl_configure_1(struct drm_dp_aux *aux, int max_frl_gbps,
764 int drm_dp_pcon_frl_configure_2(struct drm_dp_aux *aux, int max_frl_mask,
766 int drm_dp_pcon_reset_frl_config(struct drm_dp_aux *aux);
767 int drm_dp_pcon_frl_enable(struct drm_dp_aux *aux);
769 bool drm_dp_pcon_hdmi_link_active(struct drm_dp_aux *aux);
770 int drm_dp_pcon_hdmi_link_mode(struct drm_dp_aux *aux, u8 *frl_trained_mask);
771 void drm_dp_pcon_hdmi_frl_link_error_count(struct drm_dp_aux *aux,
777 int drm_dp_pcon_pps_default(struct drm_dp_aux *aux);
778 int drm_dp_pcon_pps_override_buf(struct drm_dp_aux *aux, u8 pps_buf[128]);
779 int drm_dp_pcon_pps_override_param(struct drm_dp_aux *aux, u8 pps_param[6]);
782 int drm_dp_pcon_convert_rgb_to_ycbcr(struct drm_dp_aux *aux, u8 color_spc);