1 /* $NetBSD: signal_types.h,v 1.2 2021/12/18 23:45:07 riastradh Exp $ */
2
3 /*
4 * Copyright 2012-15 Advanced Micro Devices, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: AMD
25 *
26 */
27
28 #ifndef __DC_SIGNAL_TYPES_H__
29 #define __DC_SIGNAL_TYPES_H__
30
31 /* Minimum pixel clock, in KHz. For TMDS signal is 25.00 MHz */
32 #define TMDS_MIN_PIXEL_CLOCK 25000
33 /* Maximum pixel clock, in KHz. For TMDS signal is 165.00 MHz */
34 #define TMDS_MAX_PIXEL_CLOCK 165000
35
36 enum signal_type {
37 SIGNAL_TYPE_NONE = 0L, /* no signal */
38 SIGNAL_TYPE_DVI_SINGLE_LINK = (1 << 0),
39 SIGNAL_TYPE_DVI_DUAL_LINK = (1 << 1),
40 SIGNAL_TYPE_HDMI_TYPE_A = (1 << 2),
41 SIGNAL_TYPE_LVDS = (1 << 3),
42 SIGNAL_TYPE_RGB = (1 << 4),
43 SIGNAL_TYPE_DISPLAY_PORT = (1 << 5),
44 SIGNAL_TYPE_DISPLAY_PORT_MST = (1 << 6),
45 SIGNAL_TYPE_EDP = (1 << 7),
46 SIGNAL_TYPE_VIRTUAL = (1 << 9), /* Virtual Display */
47 };
48
49 /* help functions for signal types manipulation */
dc_is_hdmi_tmds_signal(enum signal_type signal)50 static inline bool dc_is_hdmi_tmds_signal(enum signal_type signal)
51 {
52 return (signal == SIGNAL_TYPE_HDMI_TYPE_A);
53 }
54
dc_is_hdmi_signal(enum signal_type signal)55 static inline bool dc_is_hdmi_signal(enum signal_type signal)
56 {
57 return (signal == SIGNAL_TYPE_HDMI_TYPE_A);
58 }
59
dc_is_dp_sst_signal(enum signal_type signal)60 static inline bool dc_is_dp_sst_signal(enum signal_type signal)
61 {
62 return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
63 signal == SIGNAL_TYPE_EDP);
64 }
65
dc_is_dp_signal(enum signal_type signal)66 static inline bool dc_is_dp_signal(enum signal_type signal)
67 {
68 return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
69 signal == SIGNAL_TYPE_EDP ||
70 signal == SIGNAL_TYPE_DISPLAY_PORT_MST);
71 }
72
dc_is_embedded_signal(enum signal_type signal)73 static inline bool dc_is_embedded_signal(enum signal_type signal)
74 {
75 return (signal == SIGNAL_TYPE_EDP || signal == SIGNAL_TYPE_LVDS);
76 }
77
dc_is_lvds_signal(enum signal_type signal)78 static inline bool dc_is_lvds_signal(enum signal_type signal)
79 {
80 return (signal == SIGNAL_TYPE_LVDS);
81 }
82
dc_is_dvi_signal(enum signal_type signal)83 static inline bool dc_is_dvi_signal(enum signal_type signal)
84 {
85 switch (signal) {
86 case SIGNAL_TYPE_DVI_SINGLE_LINK:
87 case SIGNAL_TYPE_DVI_DUAL_LINK:
88 return true;
89 break;
90 default:
91 return false;
92 }
93 }
94
dc_is_dvi_single_link_signal(enum signal_type signal)95 static inline bool dc_is_dvi_single_link_signal(enum signal_type signal)
96 {
97 return (signal == SIGNAL_TYPE_DVI_SINGLE_LINK);
98 }
99
dc_is_dual_link_signal(enum signal_type signal)100 static inline bool dc_is_dual_link_signal(enum signal_type signal)
101 {
102 return (signal == SIGNAL_TYPE_DVI_DUAL_LINK);
103 }
104
dc_is_audio_capable_signal(enum signal_type signal)105 static inline bool dc_is_audio_capable_signal(enum signal_type signal)
106 {
107 return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
108 signal == SIGNAL_TYPE_DISPLAY_PORT_MST ||
109 dc_is_hdmi_signal(signal));
110 }
111
dc_is_virtual_signal(enum signal_type signal)112 static inline bool dc_is_virtual_signal(enum signal_type signal)
113 {
114 return (signal == SIGNAL_TYPE_VIRTUAL);
115 }
116
117 #endif
118