linux_kernel/drivers/gpu/drm/amd/display/dc/inc/link_hwss.h

/*
 * Copyright 2015 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: AMD
 *
 */

#ifndef __DC_LINK_HWSS_H__
#define __DC_LINK_HWSS_H__

#include "inc/core_status.h"

enum dc_status core_link_read_dpcd(
	struct dc_link *link,
	uint32_t address,
	uint8_t *data,
	uint32_t size);

enum dc_status core_link_write_dpcd(
	struct dc_link *link,
	uint32_t address,
	const uint8_t *data,
	uint32_t size);

struct gpio *get_hpd_gpio(struct dc_bios *dcb,
		struct graphics_object_id link_id,
		struct gpio_service *gpio_service);

void dp_enable_link_phy(
	struct dc_link *link,
	enum signal_type signal,
	enum clock_source_id clock_source,
	const struct dc_link_settings *link_settings);

void dp_receiver_power_ctrl(struct dc_link *link, bool on);

void dp_disable_link_phy(struct dc_link *link, enum signal_type signal);

void dp_disable_link_phy_mst(struct dc_link *link, enum signal_type signal);

bool dp_set_hw_training_pattern(
	struct dc_link *link,
	enum hw_dp_training_pattern pattern);

void dp_set_hw_lane_settings(
	struct dc_link *link,
	const struct link_training_settings *link_settings);

void dp_set_hw_test_pattern(
	struct dc_link *link,
	enum dp_test_pattern test_pattern,
	uint8_t *custom_pattern,
	uint32_t custom_pattern_size);

enum dp_panel_mode dp_get_panel_mode(struct dc_link *link);

void dp_retrain_link_dp_test(struct dc_link *link,
		struct dc_link_settings *link_setting,
		bool skip_video_pattern);

#endif /* __DC_LINK_HWSS_H__ */