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
|
/*
* Copyright 2022 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
*
*/
/* FILE POLICY AND INTENDED USAGE:
*
*/
#include "link_dp_training_auxless.h"
#include "link_dp_phy.h"
#define DC_LOGGER \
link->ctx->logger
bool dc_link_dp_perform_link_training_skip_aux(
struct dc_link *link,
const struct link_resource *link_res,
const struct dc_link_settings *link_setting)
{
struct link_training_settings lt_settings = {0};
dp_decide_training_settings(
link,
link_setting,
<_settings);
override_training_settings(
link,
&link->preferred_training_settings,
<_settings);
/* 1. Perform_clock_recovery_sequence. */
/* transmit training pattern for clock recovery */
dp_set_hw_training_pattern(link, link_res, lt_settings.pattern_for_cr, DPRX);
/* call HWSS to set lane settings*/
dp_set_hw_lane_settings(link, link_res, <_settings, DPRX);
/* wait receiver to lock-on*/
dp_wait_for_training_aux_rd_interval(link, lt_settings.cr_pattern_time);
/* 2. Perform_channel_equalization_sequence. */
/* transmit training pattern for channel equalization. */
dp_set_hw_training_pattern(link, link_res, lt_settings.pattern_for_eq, DPRX);
/* call HWSS to set lane settings*/
dp_set_hw_lane_settings(link, link_res, <_settings, DPRX);
/* wait receiver to lock-on. */
dp_wait_for_training_aux_rd_interval(link, lt_settings.eq_pattern_time);
/* 3. Perform_link_training_int. */
/* Mainlink output idle pattern. */
dp_set_hw_test_pattern(link, link_res, DP_TEST_PATTERN_VIDEO_MODE, NULL, 0);
dp_log_training_result(link, <_settings, LINK_TRAINING_SUCCESS);
return true;
}
|
