1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*
* 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_DP_H__
#define __DC_LINK_DP_H__
#define LINK_TRAINING_ATTEMPTS 4
#define LINK_TRAINING_RETRY_DELAY 50 /* ms */
#define LINK_AUX_DEFAULT_LTTPR_TIMEOUT_PERIOD 3200 /*us*/
#define LINK_AUX_DEFAULT_TIMEOUT_PERIOD 552 /*us*/
struct dc_link;
struct dc_stream_state;
struct dc_link_settings;
bool dp_verify_link_cap(
struct dc_link *link,
struct dc_link_settings *known_limit_link_setting,
int *fail_count);
bool dp_verify_link_cap_with_retries(
struct dc_link *link,
struct dc_link_settings *known_limit_link_setting,
int attempts);
bool dp_verify_mst_link_cap(
struct dc_link *link);
bool dp_validate_mode_timing(
struct dc_link *link,
const struct dc_crtc_timing *timing);
bool decide_edp_link_settings(struct dc_link *link,
struct dc_link_settings *link_setting,
uint32_t req_bw);
void decide_link_settings(
struct dc_stream_state *stream,
struct dc_link_settings *link_setting);
bool perform_link_training_with_retries(
const struct dc_link_settings *link_setting,
bool skip_video_pattern,
int attempts,
struct pipe_ctx *pipe_ctx,
enum signal_type signal,
bool do_fallback);
bool hpd_rx_irq_check_link_loss_status(
struct dc_link *link,
union hpd_irq_data *hpd_irq_dpcd_data);
bool is_mst_supported(struct dc_link *link);
bool detect_dp_sink_caps(struct dc_link *link);
void detect_edp_sink_caps(struct dc_link *link);
bool is_dp_active_dongle(const struct dc_link *link);
bool is_dp_branch_device(const struct dc_link *link);
bool is_edp_ilr_optimization_required(struct dc_link *link, struct dc_crtc_timing *crtc_timing);
void dp_enable_mst_on_sink(struct dc_link *link, bool enable);
enum dp_panel_mode dp_get_panel_mode(struct dc_link *link);
void dp_set_panel_mode(struct dc_link *link, enum dp_panel_mode panel_mode);
bool dp_overwrite_extended_receiver_cap(struct dc_link *link);
void dpcd_set_source_specific_data(struct dc_link *link);
void dp_set_fec_ready(struct dc_link *link, bool ready);
void dp_set_fec_enable(struct dc_link *link, bool enable);
bool dp_set_dsc_enable(struct pipe_ctx *pipe_ctx, bool enable);
bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable);
void dp_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable);
bool dp_update_dsc_config(struct pipe_ctx *pipe_ctx);
bool dp_set_dsc_on_rx(struct pipe_ctx *pipe_ctx, bool enable);
/* Convert PHY repeater count read from DPCD uint8_t. */
uint8_t dp_convert_to_count(uint8_t lttpr_repeater_count);
/* Check DPCD training status registers to detect link loss. */
enum link_training_result dp_check_link_loss_status(
struct dc_link *link,
const struct link_training_settings *link_training_setting);
enum dp_link_encoding dp_get_link_encoding_format(const struct dc_link_settings *link_settings);
#endif /* __DC_LINK_DP_H__ */
|
