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#define LINK_AUX_DEFAULT_LTTPR_TIMEOUT_PERIOD 3200 /*us*/
32#define LINK_AUX_DEFAULT_TIMEOUT_PERIOD 552 /*us*/
33
34struct dc_link;
35struct dc_stream_state;
36struct dc_link_settings;
37
38bool dp_verify_link_cap(
39	struct dc_link *link,
40	struct dc_link_settings *known_limit_link_setting,
41	int *fail_count);
42
43bool dp_verify_link_cap_with_retries(
44	struct dc_link *link,
45	struct dc_link_settings *known_limit_link_setting,
46	int attempts);
47
48bool dp_verify_mst_link_cap(
49	struct dc_link *link);
50
51bool dp_validate_mode_timing(
52	struct dc_link *link,
53	const struct dc_crtc_timing *timing);
54
55void decide_link_settings(
56	struct dc_stream_state *stream,
57	struct dc_link_settings *link_setting);
58
59bool perform_link_training_with_retries(
60	const struct dc_link_settings *link_setting,
61	bool skip_video_pattern,
62	int attempts,
63	struct pipe_ctx *pipe_ctx,
64	enum signal_type signal);
65
66bool is_mst_supported(struct dc_link *link);
67
68bool detect_dp_sink_caps(struct dc_link *link);
69
70void detect_edp_sink_caps(struct dc_link *link);
71
72bool is_dp_active_dongle(const struct dc_link *link);
73
74void dp_enable_mst_on_sink(struct dc_link *link, bool enable);
75
76enum dp_panel_mode dp_get_panel_mode(struct dc_link *link);
77void dp_set_panel_mode(struct dc_link *link, enum dp_panel_mode panel_mode);
78
79bool dp_overwrite_extended_receiver_cap(struct dc_link *link);
80
81void dpcd_set_source_specific_data(struct dc_link *link);
82
83void dp_set_fec_ready(struct dc_link *link, bool ready);
84void dp_set_fec_enable(struct dc_link *link, bool enable);
85bool dp_set_dsc_enable(struct pipe_ctx *pipe_ctx, bool enable);
86bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable);
87void dp_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable);
88bool dp_update_dsc_config(struct pipe_ctx *pipe_ctx);
89
90#endif /* __DC_LINK_DP_H__ */