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);
269  * DisplayPort AUX channel
273  * struct drm_dp_aux_msg - DisplayPort AUX channel transaction
293  * struct drm_dp_aux_cec - DisplayPort CEC-Tunneling-over-AUX
295  * @adap: the CEC adapter for CEC-Tunneling-over-AUX support.
307  * struct drm_dp_aux - DisplayPort AUX channel
309  * An AUX channel can also be used to transport I2C messages to a sink. A
321 	 * @name: user-visible name of this AUX channel and the
322 	 * I2C-over-AUX adapter.
330 	 * @ddc: I2C adapter that can be used for I2C-over-AUX
337 	 * AUX channel.
342 	 * @drm_dev: pointer to the &drm_device that owns this AUX channel.
346 	 * It should be set to the &drm_device that will be using this AUX
356 	 * AUX channel
380 	 * @transfer: transfers a message representing a single AUX
404 	 * - If the @dev providing the AUX bus is currently unpowered then
412 	 *   drm_panel driver is initiating a DP AUX transfer it may power
417 	ssize_t (*transfer)(struct drm_dp_aux *aux,
432 	 * DP controller is ready to send AUX transactions.
443 	 * that's associated with the DP AUX channel. This is different from
448 	int (*wait_hpd_asserted)(struct drm_dp_aux *aux, unsigned long wait_us);
459 	 * @cec: struct containing fields used for CEC-Tunneling-over-AUX.
463 	 * @is_remote: Is this AUX CH actually using sideband messaging.
468 int drm_dp_dpcd_probe(struct drm_dp_aux *aux, unsigned int offset);
469 ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,
471 ssize_t drm_dp_dpcd_write(struct drm_dp_aux *aux, unsigned int offset,
476  * @aux: DisplayPort AUX channel
483 static inline ssize_t drm_dp_dpcd_readb(struct drm_dp_aux *aux,  in drm_dp_dpcd_readb()  argument
486 	return drm_dp_dpcd_read(aux, offset, valuep, 1);  in drm_dp_dpcd_readb()
491  * @aux: DisplayPort AUX channel
498 static inline ssize_t drm_dp_dpcd_writeb(struct drm_dp_aux *aux,  in drm_dp_dpcd_writeb()  argument
501 	return drm_dp_dpcd_write(aux, offset, &value, 1);  in drm_dp_dpcd_writeb()
504 int drm_dp_read_dpcd_caps(struct drm_dp_aux *aux,
507 int drm_dp_dpcd_read_link_status(struct drm_dp_aux *aux,
510 int drm_dp_dpcd_read_phy_link_status(struct drm_dp_aux *aux,
514 bool drm_dp_send_real_edid_checksum(struct drm_dp_aux *aux,
517 int drm_dp_read_downstream_info(struct drm_dp_aux *aux,
543 int drm_dp_downstream_id(struct drm_dp_aux *aux, char id[6]);
548 			     struct drm_dp_aux *aux);
561 int drm_dp_read_sink_count(struct drm_dp_aux *aux);
563 int drm_dp_read_lttpr_common_caps(struct drm_dp_aux *aux,
566 int drm_dp_read_lttpr_phy_caps(struct drm_dp_aux *aux,
576 void drm_dp_remote_aux_init(struct drm_dp_aux *aux);
577 void drm_dp_aux_init(struct drm_dp_aux *aux);
578 int drm_dp_aux_register(struct drm_dp_aux *aux);
579 void drm_dp_aux_unregister(struct drm_dp_aux *aux);
581 int drm_dp_start_crc(struct drm_dp_aux *aux, struct drm_crtc *crtc);
582 int drm_dp_stop_crc(struct drm_dp_aux *aux);
602 int drm_dp_read_desc(struct drm_dp_aux *aux, struct drm_dp_desc *desc,
639 	 * The DSC caps can be read from the physical aux instead.
677  * @aux_enable: Does the panel support the AUX enable cap?
678  * @aux_set: Does the panel support setting the brightness through AUX?
694 drm_edp_backlight_init(struct drm_dp_aux *aux, struct drm_edp_backlight_info *bl,
697 int drm_edp_backlight_set_level(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl,
699 int drm_edp_backlight_enable(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl,
701 int drm_edp_backlight_disable(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl);
706 int drm_panel_dp_aux_backlight(struct drm_panel *panel, struct drm_dp_aux *aux);
711 					     struct drm_dp_aux *aux)  in drm_panel_dp_aux_backlight()  argument
719 void drm_dp_cec_irq(struct drm_dp_aux *aux);
720 void drm_dp_cec_register_connector(struct drm_dp_aux *aux,
722 void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux);
723 void drm_dp_cec_attach(struct drm_dp_aux *aux, u16 source_physical_address);
724 void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid);
725 void drm_dp_cec_unset_edid(struct drm_dp_aux *aux);
727 static inline void drm_dp_cec_irq(struct drm_dp_aux *aux)  in drm_dp_cec_irq()  argument
732 drm_dp_cec_register_connector(struct drm_dp_aux *aux,  in drm_dp_cec_register_connector()  argument
737 static inline void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux)  in drm_dp_cec_unregister_connector()  argument
741 static inline void drm_dp_cec_attach(struct drm_dp_aux *aux,  in drm_dp_cec_attach()  argument
746 static inline void drm_dp_cec_set_edid(struct drm_dp_aux *aux,  in drm_dp_cec_set_edid()  argument
751 static inline void drm_dp_cec_unset_edid(struct drm_dp_aux *aux)  in drm_dp_cec_unset_edid()  argument
775 int drm_dp_get_phy_test_pattern(struct drm_dp_aux *aux,
777 int drm_dp_set_phy_test_pattern(struct drm_dp_aux *aux,
781 int drm_dp_pcon_frl_prepare(struct drm_dp_aux *aux, bool enable_frl_ready_hpd);
782 bool drm_dp_pcon_is_frl_ready(struct drm_dp_aux *aux);
783 int drm_dp_pcon_frl_configure_1(struct drm_dp_aux *aux, int max_frl_gbps,
785 int drm_dp_pcon_frl_configure_2(struct drm_dp_aux *aux, int max_frl_mask,
787 int drm_dp_pcon_reset_frl_config(struct drm_dp_aux *aux);
788 int drm_dp_pcon_frl_enable(struct drm_dp_aux *aux);
790 bool drm_dp_pcon_hdmi_link_active(struct drm_dp_aux *aux);
791 int drm_dp_pcon_hdmi_link_mode(struct drm_dp_aux *aux, u8 *frl_trained_mask);
792 void drm_dp_pcon_hdmi_frl_link_error_count(struct drm_dp_aux *aux,
798 int drm_dp_pcon_pps_default(struct drm_dp_aux *aux);
799 int drm_dp_pcon_pps_override_buf(struct drm_dp_aux *aux, u8 pps_buf[128]);
800 int drm_dp_pcon_pps_override_param(struct drm_dp_aux *aux, u8 pps_param[6]);
803 int drm_dp_pcon_convert_rgb_to_ycbcr(struct drm_dp_aux *aux, u8 color_spc);