1/*
 2 * Copyright 2015 Advanced Micro Devices, Inc.
 3 *
 4 * Permission is hereby granted, free of charge, to any person obtaining a
 5 * copy of this software and associated documentation files (the "Software"),
 6 * to deal in the Software without restriction, including without limitation
 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 8 * and/or sell copies of the Software, and to permit persons to whom the
 9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26#ifndef __DC_LINK_HWSS_H__
27#define __DC_LINK_HWSS_H__
28
29#include "inc/core_status.h"
30
31enum dc_status core_link_read_dpcd(
32	struct dc_link *link,
33	uint32_t address,
34	uint8_t *data,
35	uint32_t size);
36
37enum dc_status core_link_write_dpcd(
38	struct dc_link *link,
39	uint32_t address,
40	const uint8_t *data,
41	uint32_t size);
42
43struct gpio *get_hpd_gpio(struct dc_bios *dcb,
44		struct graphics_object_id link_id,
45		struct gpio_service *gpio_service);
46
47void dp_enable_link_phy(
48	struct dc_link *link,
49	enum signal_type signal,
50	enum clock_source_id clock_source,
51	const struct dc_link_settings *link_settings);
52
53void dp_receiver_power_ctrl(struct dc_link *link, bool on);
54bool edp_receiver_ready_T9(struct dc_link *link);
55bool edp_receiver_ready_T7(struct dc_link *link);
56
57void dp_disable_link_phy(struct dc_link *link, enum signal_type signal);
58
59void dp_disable_link_phy_mst(struct dc_link *link, enum signal_type signal);
60
61bool dp_set_hw_training_pattern(
62	struct dc_link *link,
63	enum dc_dp_training_pattern pattern,
64	uint32_t offset);
65
66void dp_set_hw_lane_settings(
67	struct dc_link *link,
68	const struct link_training_settings *link_settings,
69	uint32_t offset);
70
71void dp_set_hw_test_pattern(
72	struct dc_link *link,
73	enum dp_test_pattern test_pattern,
74	uint8_t *custom_pattern,
75	uint32_t custom_pattern_size);
76
77void dp_retrain_link_dp_test(struct dc_link *link,
78		struct dc_link_settings *link_setting,
79		bool skip_video_pattern);
80
81#endif /* __DC_LINK_HWSS_H__ */