1 /* 2 * Copyright 2015 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_LINK_DP_H__ 27 #define __DC_LINK_DP_H__ 28 29 #define LINK_TRAINING_ATTEMPTS 4 30 #define LINK_TRAINING_RETRY_DELAY 50 /* ms */ 31 #define LINK_AUX_DEFAULT_LTTPR_TIMEOUT_PERIOD 3200 /*us*/ 32 #define LINK_AUX_DEFAULT_TIMEOUT_PERIOD 552 /*us*/ 33 34 struct dc_link; 35 struct dc_stream_state; 36 struct dc_link_settings; 37 38 bool dp_verify_link_cap( 39 struct dc_link *link, 40 struct dc_link_settings *known_limit_link_setting, 41 int *fail_count); 42 43 bool dp_verify_link_cap_with_retries( 44 struct dc_link *link, 45 struct dc_link_settings *known_limit_link_setting, 46 int attempts); 47 48 bool dp_verify_mst_link_cap( 49 struct dc_link *link); 50 51 bool dp_validate_mode_timing( 52 struct dc_link *link, 53 const struct dc_crtc_timing *timing); 54 55 void decide_link_settings( 56 struct dc_stream_state *stream, 57 struct dc_link_settings *link_setting); 58 59 bool perform_link_training_with_retries( 60 const struct dc_link_settings *link_setting, 61 bool skip_video_pattern, 62 int attempts, 63 struct pipe_ctx *pipe_ctx, 64 enum signal_type signal); 65 66 bool is_mst_supported(struct dc_link *link); 67 68 bool detect_dp_sink_caps(struct dc_link *link); 69 70 void detect_edp_sink_caps(struct dc_link *link); 71 72 bool is_dp_active_dongle(const struct dc_link *link); 73 74 void dp_enable_mst_on_sink(struct dc_link *link, bool enable); 75 76 enum dp_panel_mode dp_get_panel_mode(struct dc_link *link); 77 void dp_set_panel_mode(struct dc_link *link, enum dp_panel_mode panel_mode); 78 79 bool dp_overwrite_extended_receiver_cap(struct dc_link *link); 80 81 void dpcd_set_source_specific_data(struct dc_link *link); 82 83 void dp_set_fec_ready(struct dc_link *link, bool ready); 84 void dp_set_fec_enable(struct dc_link *link, bool enable); 85 bool dp_set_dsc_enable(struct pipe_ctx *pipe_ctx, bool enable); 86 bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable); 87 void dp_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable); 88 bool dp_update_dsc_config(struct pipe_ctx *pipe_ctx); 89 90 #endif /* __DC_LINK_DP_H__ */ 91
