1 /* $NetBSD: dc_link_dp.h,v 1.2 2021/12/18 23:45:05 riastradh Exp $ */ 2 3 /* 4 * Copyright 2015 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: AMD 25 * 26 */ 27 28 #ifndef __DC_LINK_DP_H__ 29 #define __DC_LINK_DP_H__ 30 31 #define LINK_TRAINING_ATTEMPTS 4 32 #define LINK_TRAINING_RETRY_DELAY 50 /* ms */ 33 #define LINK_AUX_DEFAULT_EXTENDED_TIMEOUT_PERIOD 3200 /*us*/ 34 #define LINK_AUX_DEFAULT_TIMEOUT_PERIOD 552 /*us*/ 35 36 struct dc_link; 37 struct dc_stream_state; 38 struct dc_link_settings; 39 40 bool dp_verify_link_cap( 41 struct dc_link *link, 42 struct dc_link_settings *known_limit_link_setting, 43 int *fail_count); 44 45 bool dp_verify_link_cap_with_retries( 46 struct dc_link *link, 47 struct dc_link_settings *known_limit_link_setting, 48 int attempts); 49 50 bool dp_verify_mst_link_cap( 51 struct dc_link *link); 52 53 bool dp_validate_mode_timing( 54 struct dc_link *link, 55 const struct dc_crtc_timing *timing); 56 57 void decide_link_settings( 58 struct dc_stream_state *stream, 59 struct dc_link_settings *link_setting); 60 61 bool perform_link_training_with_retries( 62 const struct dc_link_settings *link_setting, 63 bool skip_video_pattern, 64 int attempts, 65 struct pipe_ctx *pipe_ctx, 66 enum signal_type signal); 67 68 bool is_mst_supported(struct dc_link *link); 69 70 bool detect_dp_sink_caps(struct dc_link *link); 71 72 void detect_edp_sink_caps(struct dc_link *link); 73 74 bool is_dp_active_dongle(const struct dc_link *link); 75 76 void dp_enable_mst_on_sink(struct dc_link *link, bool enable); 77 78 enum dp_panel_mode dp_get_panel_mode(struct dc_link *link); 79 void dp_set_panel_mode(struct dc_link *link, enum dp_panel_mode panel_mode); 80 81 bool dp_overwrite_extended_receiver_cap(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