1/*
2 * Copyright 2012-15 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_SIGNAL_TYPES_H__
27#define __DC_SIGNAL_TYPES_H__
28
29/* Minimum pixel clock, in KHz. For TMDS signal is 25.00 MHz */
30#define TMDS_MIN_PIXEL_CLOCK 25000
31/* Maximum pixel clock, in KHz. For TMDS signal is 165.00 MHz */
32#define TMDS_MAX_PIXEL_CLOCK 165000
33
34enum signal_type {
35 SIGNAL_TYPE_NONE = 0L, /* no signal */
36 SIGNAL_TYPE_DVI_SINGLE_LINK = (1 << 0),
37 SIGNAL_TYPE_DVI_DUAL_LINK = (1 << 1),
38 SIGNAL_TYPE_HDMI_TYPE_A = (1 << 2),
39 SIGNAL_TYPE_LVDS = (1 << 3),
40 SIGNAL_TYPE_RGB = (1 << 4),
41 SIGNAL_TYPE_DISPLAY_PORT = (1 << 5),
42 SIGNAL_TYPE_DISPLAY_PORT_MST = (1 << 6),
43 SIGNAL_TYPE_EDP = (1 << 7),
44 SIGNAL_TYPE_VIRTUAL = (1 << 9), /* Virtual Display */
45};
46
47/* help functions for signal types manipulation */
48static inline bool dc_is_hdmi_signal(enum signal_type signal)
49{
50 return (signal == SIGNAL_TYPE_HDMI_TYPE_A);
51}
52
53static inline bool dc_is_dp_sst_signal(enum signal_type signal)
54{
55 return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
56 signal == SIGNAL_TYPE_EDP);
57}
58
59static inline bool dc_is_dp_signal(enum signal_type signal)
60{
61 return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
62 signal == SIGNAL_TYPE_EDP ||
63 signal == SIGNAL_TYPE_DISPLAY_PORT_MST);
64}
65
66static inline bool dc_is_embedded_signal(enum signal_type signal)
67{
68 return (signal == SIGNAL_TYPE_EDP || signal == SIGNAL_TYPE_LVDS);
69}
70
71static inline bool dc_is_lvds_signal(enum signal_type signal)
72{
73 return (signal == SIGNAL_TYPE_LVDS);
74}
75
76static inline bool dc_is_dvi_signal(enum signal_type signal)
77{
78 switch (signal) {
79 case SIGNAL_TYPE_DVI_SINGLE_LINK:
80 case SIGNAL_TYPE_DVI_DUAL_LINK:
81 return true;
82 break;
83 default:
84 return false;
85 }
86}
87
88static inline bool dc_is_dvi_single_link_signal(enum signal_type signal)
89{
90 return (signal == SIGNAL_TYPE_DVI_SINGLE_LINK);
91}
92
93static inline bool dc_is_dual_link_signal(enum signal_type signal)
94{
95 return (signal == SIGNAL_TYPE_DVI_DUAL_LINK);
96}
97
98static inline bool dc_is_audio_capable_signal(enum signal_type signal)
99{
100 return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
101 signal == SIGNAL_TYPE_DISPLAY_PORT_MST ||
102 dc_is_hdmi_signal(signal));
103}
104
105static inline bool dc_is_virtual_signal(enum signal_type signal)
106{
107 return (signal == SIGNAL_TYPE_VIRTUAL);
108}
109
110#endif
111