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 */ 48 static inline bool dc_is_hdmi_signal(enum signal_type signal) 49 { 50 return (signal == SIGNAL_TYPE_HDMI_TYPE_A); 51 } 52 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 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 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 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 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 88 static inline bool dc_is_dual_link_signal(enum signal_type signal) 89 { 90 return (signal == SIGNAL_TYPE_DVI_DUAL_LINK); 91 } 92 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