link/protocols/link_dp_training_dpia.c

98  * @param[out] lt_settings Link settings and drive settings (voltage swing and pre-emphasis).
104 		struct link_training_settings *lt_settings)
112 		lt_settings->lttpr_mode);
117 		lt_settings);
119 	dp_get_lttpr_mode_override(link, &lt_settings->lttpr_mode);
121 	status = dpcd_configure_channel_coding(link, lt_settings);
126 	status = dpcd_configure_lttpr_mode(link, lt_settings);
131 	status = dpcd_set_link_settings(link, lt_settings);
172 		struct link_training_settings *lt_settings)
180 		data.set_link.mode = lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT ? 1 : 0;
186 		data.set_vspe.swing = lt_settings->hw_lane_settings[0].VOLTAGE_SWING;
187 		data.set_vspe.pre_emph = lt_settings->hw_lane_settings[0].PRE_EMPHASIS;
189 				lt_settings->hw_lane_settings[0].VOLTAGE_SWING == VOLTAGE_SWING_MAX_LEVEL ? 1 : 0;
191 				lt_settings->hw_lane_settings[0].PRE_EMPHASIS == PRE_EMPHASIS_MAX_LEVEL ? 1 : 0;
283  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
289 		struct link_training_settings *lt_settings,
298 	enum dc_lane_count lane_count = lt_settings->link_settings.lane_count;
326 					lt_settings);
344 			status = convert_trng_ptn_to_trng_stg(lt_settings->pattern_for_cr, &ts);
357 			status = dpcd_set_lt_pattern(link, lt_settings->pattern_for_cr, hop);
371 					lt_settings);
381 		status = dpcd_set_lane_settings(link, lt_settings, hop);
392 				lt_settings,
411 		if (dp_is_max_vs_reached(lt_settings))
418 		if ((lt_settings->dpcd_lane_settings[0].bits.VOLTAGE_SWING_SET ==
420 				&& (lt_settings->dpcd_lane_settings[0].bits.PRE_EMPHASIS_SET ==
427 		dp_decide_lane_settings(lt_settings, dpcd_lane_adjust,
428 				lt_settings->hw_lane_settings,
429 				lt_settings->dpcd_lane_settings);
456  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
461 		struct link_training_settings *lt_settings)
467 	uint32_t wait_time_microsec = lt_settings->cr_pattern_time;
468 	enum dc_lane_count lane_count = lt_settings->link_settings.lane_count;
488 			status = dpcd_set_lt_pattern(link, lt_settings->pattern_for_cr, DPRX);
500 				lt_settings,
519 		if (dp_is_max_vs_reached(lt_settings))
526 		if ((lt_settings->dpcd_lane_settings[0].bits.VOLTAGE_SWING_SET ==
528 				&& (lt_settings->dpcd_lane_settings[0].bits.PRE_EMPHASIS_SET ==
535 		dp_decide_lane_settings(lt_settings, dpcd_lane_adjust,
536 				lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
558  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
564 		struct link_training_settings *lt_settings,
569 	if (lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
570 		result = dpia_training_cr_non_transparent(link, link_res, lt_settings, hop);
572 		result = dpia_training_cr_transparent(link, link_res, lt_settings);
580 		const struct link_training_settings *lt_settings,
586 		wait_time_microsec = lt_settings->eq_pattern_time;
608  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
614 		struct link_training_settings *lt_settings,
623 	enum dc_lane_count lane_count = lt_settings->link_settings.lane_count;
634 		tr_pattern = lt_settings->pattern_for_eq;
677 					lt_settings);
687 		status = dpcd_set_lane_settings(link, lt_settings, hop);
699 			wait_time_microsec = dpia_get_eq_aux_rd_interval(link, lt_settings, hop);
706 				lt_settings,
730 		dp_decide_lane_settings(lt_settings, dpcd_lane_adjust,
731 				lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
758  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
764 		struct link_training_settings *lt_settings)
769 	enum dc_dp_training_pattern tr_pattern = lt_settings->pattern_for_eq;
771 	enum dc_lane_count lane_count = lt_settings->link_settings.lane_count;
776 	wait_time_microsec = dpia_get_eq_aux_rd_interval(link, lt_settings, DPRX);
793 				lt_settings,
821 		dp_decide_lane_settings(lt_settings, dpcd_lane_adjust,
822 				lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
843  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
849 		struct link_training_settings *lt_settings,
854 	if (lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
855 		result = dpia_training_eq_non_transparent(link, link_res, lt_settings, hop);
857 		result = dpia_training_eq_transparent(link, link_res, lt_settings);
898 		struct link_training_settings *lt_settings,
905 	if (lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) {
950 		lt_settings->lttpr_mode);
964 		struct link_training_settings *lt_settings,
973 		lt_settings->lttpr_mode,
997 	struct link_training_settings lt_settings = {0};
1003 	lt_settings.lttpr_mode = dp_decide_lttpr_mode(link, &link_settings);
1006 	result = dpia_configure_link(link, link_res, link_setting, &lt_settings);
1010 	if (lt_settings.lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
1018 		result = dpia_training_cr_phase(link, link_res, &lt_settings, repeater_id);
1023 		result = dpia_training_eq_phase(link, link_res, &lt_settings, repeater_id);
1028 		result = dpia_training_end(link, &lt_settings, repeater_id);
1041 			result = dp_check_link_loss_status(link, &lt_settings);
1043 		dpia_training_abort(link, &lt_settings, repeater_id);
1045 		dpia_training_end(link, &lt_settings, repeater_id);