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_DP_H__
27#define __DC_LINK_DP_H__
28
29#define LINK_TRAINING_ATTEMPTS 4
30#define LINK_TRAINING_RETRY_DELAY 50 /* ms */
31
32struct dc_link;
33struct dc_stream_state;
34struct dc_link_settings;
35
36bool dp_verify_link_cap(
37	struct dc_link *link,
38	struct dc_link_settings *known_limit_link_setting,
39	int *fail_count);
40
41bool dp_verify_link_cap_with_retries(
42	struct dc_link *link,
43	struct dc_link_settings *known_limit_link_setting,
44	int attempts);
45
46bool dp_validate_mode_timing(
47	struct dc_link *link,
48	const struct dc_crtc_timing *timing);
49
50void decide_link_settings(
51	struct dc_stream_state *stream,
52	struct dc_link_settings *link_setting);
53
54bool perform_link_training_with_retries(
55	struct dc_link *link,
56	const struct dc_link_settings *link_setting,
57	bool skip_video_pattern,
58	int attempts);
59
60bool is_mst_supported(struct dc_link *link);
61
62bool detect_dp_sink_caps(struct dc_link *link);
63
64void detect_edp_sink_caps(struct dc_link *link);
65
66bool is_dp_active_dongle(const struct dc_link *link);
67
68void dp_enable_mst_on_sink(struct dc_link *link, bool enable);
69
70enum dp_panel_mode dp_get_panel_mode(struct dc_link *link);
71void dp_set_panel_mode(struct dc_link *link, enum dp_panel_mode panel_mode);
72
73#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
74void dp_set_fec_ready(struct dc_link *link, bool ready);
75void dp_set_fec_enable(struct dc_link *link, bool enable);
76bool dp_set_dsc_enable(struct pipe_ctx *pipe_ctx, bool enable);
77bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable);
78void dp_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable);
79bool dp_update_dsc_config(struct pipe_ctx *pipe_ctx);
80#endif
81
82#endif /* __DC_LINK_DP_H__ */