1*b843c749SSergey Zigachev /* 2*b843c749SSergey Zigachev * Copyright 2015 Advanced Micro Devices, Inc. 3*b843c749SSergey Zigachev * 4*b843c749SSergey Zigachev * Permission is hereby granted, free of charge, to any person obtaining a 5*b843c749SSergey Zigachev * copy of this software and associated documentation files (the "Software"), 6*b843c749SSergey Zigachev * to deal in the Software without restriction, including without limitation 7*b843c749SSergey Zigachev * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8*b843c749SSergey Zigachev * and/or sell copies of the Software, and to permit persons to whom the 9*b843c749SSergey Zigachev * Software is furnished to do so, subject to the following conditions: 10*b843c749SSergey Zigachev * 11*b843c749SSergey Zigachev * The above copyright notice and this permission notice shall be included in 12*b843c749SSergey Zigachev * all copies or substantial portions of the Software. 13*b843c749SSergey Zigachev * 14*b843c749SSergey Zigachev * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15*b843c749SSergey Zigachev * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16*b843c749SSergey Zigachev * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17*b843c749SSergey Zigachev * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18*b843c749SSergey Zigachev * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19*b843c749SSergey Zigachev * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20*b843c749SSergey Zigachev * OTHER DEALINGS IN THE SOFTWARE. 21*b843c749SSergey Zigachev * 22*b843c749SSergey Zigachev * Authors: AMD 23*b843c749SSergey Zigachev * 24*b843c749SSergey Zigachev */ 25*b843c749SSergey Zigachev 26*b843c749SSergey Zigachev #ifndef __DC_LINK_DP_H__ 27*b843c749SSergey Zigachev #define __DC_LINK_DP_H__ 28*b843c749SSergey Zigachev 29*b843c749SSergey Zigachev #define LINK_TRAINING_ATTEMPTS 4 30*b843c749SSergey Zigachev #define LINK_TRAINING_RETRY_DELAY 50 /* ms */ 31*b843c749SSergey Zigachev 32*b843c749SSergey Zigachev struct dc_link; 33*b843c749SSergey Zigachev struct dc_stream_state; 34*b843c749SSergey Zigachev struct dc_link_settings; 35*b843c749SSergey Zigachev 36*b843c749SSergey Zigachev bool dp_verify_link_cap( 37*b843c749SSergey Zigachev struct dc_link *link, 38*b843c749SSergey Zigachev struct dc_link_settings *known_limit_link_setting, 39*b843c749SSergey Zigachev int *fail_count); 40*b843c749SSergey Zigachev 41*b843c749SSergey Zigachev bool dp_validate_mode_timing( 42*b843c749SSergey Zigachev struct dc_link *link, 43*b843c749SSergey Zigachev const struct dc_crtc_timing *timing); 44*b843c749SSergey Zigachev 45*b843c749SSergey Zigachev void decide_link_settings( 46*b843c749SSergey Zigachev struct dc_stream_state *stream, 47*b843c749SSergey Zigachev struct dc_link_settings *link_setting); 48*b843c749SSergey Zigachev 49*b843c749SSergey Zigachev bool perform_link_training_with_retries( 50*b843c749SSergey Zigachev struct dc_link *link, 51*b843c749SSergey Zigachev const struct dc_link_settings *link_setting, 52*b843c749SSergey Zigachev bool skip_video_pattern, 53*b843c749SSergey Zigachev int attempts); 54*b843c749SSergey Zigachev 55*b843c749SSergey Zigachev bool is_mst_supported(struct dc_link *link); 56*b843c749SSergey Zigachev 57*b843c749SSergey Zigachev bool detect_dp_sink_caps(struct dc_link *link); 58*b843c749SSergey Zigachev 59*b843c749SSergey Zigachev void detect_edp_sink_caps(struct dc_link *link); 60*b843c749SSergey Zigachev 61*b843c749SSergey Zigachev bool is_dp_active_dongle(const struct dc_link *link); 62*b843c749SSergey Zigachev 63*b843c749SSergey Zigachev void dp_enable_mst_on_sink(struct dc_link *link, bool enable); 64*b843c749SSergey Zigachev 65*b843c749SSergey Zigachev #endif /* __DC_LINK_DP_H__ */ 66