tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright 2012-16 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#include "core_types.h"
27#include "logger.h"
28#include "include/logger_interface.h"
29#include "dm_helpers.h"
30
31#define NUM_ELEMENTS(a) (sizeof(a) / sizeof((a)[0]))
32
33struct dc_signal_type_info {
34 enum signal_type type;
35 char name[MAX_NAME_LEN];
36};
37
38static const struct dc_signal_type_info signal_type_info_tbl[] = {
39 {SIGNAL_TYPE_NONE, "NC"},
40 {SIGNAL_TYPE_DVI_SINGLE_LINK, "DVI"},
41 {SIGNAL_TYPE_DVI_DUAL_LINK, "DDVI"},
42 {SIGNAL_TYPE_HDMI_TYPE_A, "HDMIA"},
43 {SIGNAL_TYPE_LVDS, "LVDS"},
44 {SIGNAL_TYPE_RGB, "VGA"},
45 {SIGNAL_TYPE_DISPLAY_PORT, "DP"},
46 {SIGNAL_TYPE_DISPLAY_PORT_MST, "MST"},
47 {SIGNAL_TYPE_EDP, "eDP"},
48 {SIGNAL_TYPE_VIRTUAL, "Virtual"}
49};
50
51void dc_conn_log(struct dc_context *ctx,
52 const struct dc_link *link,
53 uint8_t *hex_data,
54 int hex_data_count,
55 enum dc_log_type event,
56 const char *msg,
57 ...)
58{
59 int i;
60 va_list args;
61 struct log_entry entry = { 0 };
62 enum signal_type signal;
63
64 if (link->local_sink)
65 signal = link->local_sink->sink_signal;
66 else
67 signal = link->connector_signal;
68
69 if (link->type == dc_connection_mst_branch)
70 signal = SIGNAL_TYPE_DISPLAY_PORT_MST;
71
72 dm_logger_open(ctx->logger, &entry, event);
73
74 for (i = 0; i < NUM_ELEMENTS(signal_type_info_tbl); i++)
75 if (signal == signal_type_info_tbl[i].type)
76 break;
77
78 if (i == NUM_ELEMENTS(signal_type_info_tbl))
79 goto fail;
80
81 dm_logger_append(&entry, "[%s][ConnIdx:%d] ",
82 signal_type_info_tbl[i].name,
83 link->link_index);
84
85 va_start(args, msg);
86 dm_logger_append_va(&entry, msg, args);
87
88 if (entry.buf_offset > 0 &&
89 entry.buf[entry.buf_offset - 1] == '\n')
90 entry.buf_offset--;
91
92 if (hex_data)
93 for (i = 0; i < hex_data_count; i++)
94 dm_logger_append(&entry, "%2.2X ", hex_data[i]);
95
96 dm_logger_append(&entry, "^\n");
97
98fail:
99 dm_logger_close(&entry);
100
101 va_end(args);
102}