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 | static inline const char *signal_type_to_string(const int type) |
48 | { |
49 | switch (type) { |
50 | case SIGNAL_TYPE_NONE: |
51 | return "No signal" ; |
52 | case SIGNAL_TYPE_DVI_SINGLE_LINK: |
53 | return "DVI: Single Link" ; |
54 | case SIGNAL_TYPE_DVI_DUAL_LINK: |
55 | return "DVI: Dual Link" ; |
56 | case SIGNAL_TYPE_HDMI_TYPE_A: |
57 | return "HDMI: TYPE A" ; |
58 | case SIGNAL_TYPE_LVDS: |
59 | return "LVDS" ; |
60 | case SIGNAL_TYPE_RGB: |
61 | return "RGB" ; |
62 | case SIGNAL_TYPE_DISPLAY_PORT: |
63 | return "Display Port" ; |
64 | case SIGNAL_TYPE_DISPLAY_PORT_MST: |
65 | return "Display Port: MST" ; |
66 | case SIGNAL_TYPE_EDP: |
67 | return "Embedded Display Port" ; |
68 | case SIGNAL_TYPE_VIRTUAL: |
69 | return "Virtual" ; |
70 | default: |
71 | return "Unknown" ; |
72 | } |
73 | } |
74 | |
75 | /* help functions for signal types manipulation */ |
76 | static inline bool dc_is_hdmi_tmds_signal(enum signal_type signal) |
77 | { |
78 | return (signal == SIGNAL_TYPE_HDMI_TYPE_A); |
79 | } |
80 | |
81 | static inline bool dc_is_hdmi_signal(enum signal_type signal) |
82 | { |
83 | return (signal == SIGNAL_TYPE_HDMI_TYPE_A); |
84 | } |
85 | |
86 | static inline bool dc_is_dp_sst_signal(enum signal_type signal) |
87 | { |
88 | return (signal == SIGNAL_TYPE_DISPLAY_PORT || |
89 | signal == SIGNAL_TYPE_EDP); |
90 | } |
91 | |
92 | static inline bool dc_is_dp_signal(enum signal_type signal) |
93 | { |
94 | return (signal == SIGNAL_TYPE_DISPLAY_PORT || |
95 | signal == SIGNAL_TYPE_EDP || |
96 | signal == SIGNAL_TYPE_DISPLAY_PORT_MST); |
97 | } |
98 | |
99 | static inline bool dc_is_embedded_signal(enum signal_type signal) |
100 | { |
101 | return (signal == SIGNAL_TYPE_EDP || signal == SIGNAL_TYPE_LVDS); |
102 | } |
103 | |
104 | static inline bool dc_is_lvds_signal(enum signal_type signal) |
105 | { |
106 | return (signal == SIGNAL_TYPE_LVDS); |
107 | } |
108 | |
109 | static inline bool dc_is_dvi_signal(enum signal_type signal) |
110 | { |
111 | switch (signal) { |
112 | case SIGNAL_TYPE_DVI_SINGLE_LINK: |
113 | case SIGNAL_TYPE_DVI_DUAL_LINK: |
114 | return true; |
115 | break; |
116 | default: |
117 | return false; |
118 | } |
119 | } |
120 | |
121 | static inline bool dc_is_dvi_single_link_signal(enum signal_type signal) |
122 | { |
123 | return (signal == SIGNAL_TYPE_DVI_SINGLE_LINK); |
124 | } |
125 | |
126 | static inline bool dc_is_dual_link_signal(enum signal_type signal) |
127 | { |
128 | return (signal == SIGNAL_TYPE_DVI_DUAL_LINK); |
129 | } |
130 | |
131 | static inline bool dc_is_audio_capable_signal(enum signal_type signal) |
132 | { |
133 | return (signal == SIGNAL_TYPE_DISPLAY_PORT || |
134 | signal == SIGNAL_TYPE_DISPLAY_PORT_MST || |
135 | dc_is_hdmi_signal(signal)); |
136 | } |
137 | |
138 | static inline bool dc_is_virtual_signal(enum signal_type signal) |
139 | { |
140 | return (signal == SIGNAL_TYPE_VIRTUAL); |
141 | } |
142 | |
143 | #endif |
144 | |