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
34 enum 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 */
dc_is_hdmi_signal(enum signal_type signal)48 static inline bool dc_is_hdmi_signal(enum signal_type signal)
49 {
50 return (signal == SIGNAL_TYPE_HDMI_TYPE_A);
51 }
52
dc_is_dp_sst_signal(enum signal_type signal)53 static 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
dc_is_dp_signal(enum signal_type signal)59 static 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
dc_is_embedded_signal(enum signal_type signal)66 static inline bool dc_is_embedded_signal(enum signal_type signal)
67 {
68 return (signal == SIGNAL_TYPE_EDP || signal == SIGNAL_TYPE_LVDS);
69 }
70
dc_is_dvi_signal(enum signal_type signal)71 static inline bool dc_is_dvi_signal(enum signal_type signal)
72 {
73 switch (signal) {
74 case SIGNAL_TYPE_DVI_SINGLE_LINK:
75 case SIGNAL_TYPE_DVI_DUAL_LINK:
76 return true;
77 break;
78 default:
79 return false;
80 }
81 }
82
dc_is_dvi_single_link_signal(enum signal_type signal)83 static inline bool dc_is_dvi_single_link_signal(enum signal_type signal)
84 {
85 return (signal == SIGNAL_TYPE_DVI_SINGLE_LINK);
86 }
87
dc_is_dual_link_signal(enum signal_type signal)88 static inline bool dc_is_dual_link_signal(enum signal_type signal)
89 {
90 return (signal == SIGNAL_TYPE_DVI_DUAL_LINK);
91 }
92
dc_is_audio_capable_signal(enum signal_type signal)93 static inline bool dc_is_audio_capable_signal(enum signal_type signal)
94 {
95 return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
96 signal == SIGNAL_TYPE_DISPLAY_PORT_MST ||
97 dc_is_hdmi_signal(signal));
98 }
99
100 #endif
101