1 /* $NetBSD: mod_freesync.h,v 1.2 2021/12/18 23:45:07 riastradh Exp $ */ 2 3 /* 4 * Copyright 2016 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 29 30 31 /* 32 * Copyright 2016 Advanced Micro Devices, Inc. 33 * 34 * Permission is hereby granted, free of charge, to any person obtaining a 35 * copy of this software and associated documentation files (the "Software"), 36 * to deal in the Software without restriction, including without limitation 37 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 38 * and/or sell copies of the Software, and to permit persons to whom the 39 * Software is furnished to do so, subject to the following conditions: 40 * 41 * The above copyright notice and this permission notice shall be included in 42 * all copies or substantial portions of the Software. 43 * 44 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 45 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 46 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 47 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 48 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 49 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 50 * OTHER DEALINGS IN THE SOFTWARE. 51 * 52 * Authors: AMD 53 * 54 */ 55 56 #ifndef MOD_FREESYNC_H_ 57 #define MOD_FREESYNC_H_ 58 59 #include "mod_shared.h" 60 61 // Access structures 62 struct mod_freesync { 63 int dummy; 64 }; 65 66 // TODO: References to this should be removed 67 struct mod_freesync_caps { 68 bool supported; 69 unsigned int min_refresh_in_micro_hz; 70 unsigned int max_refresh_in_micro_hz; 71 }; 72 73 enum mod_vrr_state { 74 VRR_STATE_UNSUPPORTED = 0, 75 VRR_STATE_DISABLED, 76 VRR_STATE_INACTIVE, 77 VRR_STATE_ACTIVE_VARIABLE, 78 VRR_STATE_ACTIVE_FIXED 79 }; 80 81 struct mod_freesync_config { 82 enum mod_vrr_state state; 83 bool vsif_supported; 84 bool ramping; 85 bool btr; 86 unsigned int min_refresh_in_uhz; 87 unsigned int max_refresh_in_uhz; 88 }; 89 90 struct mod_vrr_params_btr { 91 bool btr_enabled; 92 bool btr_active; 93 uint32_t mid_point_in_us; 94 uint32_t inserted_duration_in_us; 95 uint32_t frames_to_insert; 96 uint32_t frame_counter; 97 uint32_t margin_in_us; 98 }; 99 100 struct mod_vrr_params_fixed_refresh { 101 bool fixed_active; 102 bool ramping_active; 103 bool ramping_done; 104 uint32_t target_refresh_in_uhz; 105 uint32_t frame_counter; 106 }; 107 108 struct mod_vrr_params { 109 bool supported; 110 bool send_info_frame; 111 enum mod_vrr_state state; 112 113 uint32_t min_refresh_in_uhz; 114 uint32_t max_duration_in_us; 115 uint32_t max_refresh_in_uhz; 116 uint32_t min_duration_in_us; 117 118 struct dc_crtc_timing_adjust adjust; 119 120 struct mod_vrr_params_fixed_refresh fixed; 121 122 struct mod_vrr_params_btr btr; 123 }; 124 125 struct mod_freesync *mod_freesync_create(struct dc *dc); 126 void mod_freesync_destroy(struct mod_freesync *mod_freesync); 127 128 bool mod_freesync_get_vmin_vmax(struct mod_freesync *mod_freesync, 129 const struct dc_stream_state *stream, 130 unsigned int *vmin, 131 unsigned int *vmax); 132 133 bool mod_freesync_get_v_position(struct mod_freesync *mod_freesync, 134 struct dc_stream_state *stream, 135 unsigned int *nom_v_pos, 136 unsigned int *v_pos); 137 138 void mod_freesync_get_settings(struct mod_freesync *mod_freesync, 139 const struct mod_vrr_params *vrr, 140 unsigned int *v_total_min, unsigned int *v_total_max, 141 unsigned int *event_triggers, 142 unsigned int *window_min, unsigned int *window_max, 143 unsigned int *lfc_mid_point_in_us, 144 unsigned int *inserted_frames, 145 unsigned int *inserted_duration_in_us); 146 147 void mod_freesync_build_vrr_infopacket(struct mod_freesync *mod_freesync, 148 const struct dc_stream_state *stream, 149 const struct mod_vrr_params *vrr, 150 enum vrr_packet_type packet_type, 151 enum color_transfer_func app_tf, 152 struct dc_info_packet *infopacket); 153 154 void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync, 155 const struct dc_stream_state *stream, 156 struct mod_freesync_config *in_config, 157 struct mod_vrr_params *in_out_vrr); 158 159 void mod_freesync_handle_preflip(struct mod_freesync *mod_freesync, 160 const struct dc_plane_state *plane, 161 const struct dc_stream_state *stream, 162 unsigned int curr_time_stamp_in_us, 163 struct mod_vrr_params *in_out_vrr); 164 165 void mod_freesync_handle_v_update(struct mod_freesync *mod_freesync, 166 const struct dc_stream_state *stream, 167 struct mod_vrr_params *in_out_vrr); 168 169 unsigned long long mod_freesync_calc_nominal_field_rate( 170 const struct dc_stream_state *stream); 171 172 bool mod_freesync_is_valid_range(struct mod_freesync *mod_freesync, 173 const struct dc_stream_state *stream, 174 uint32_t min_refresh_cap_in_uhz, 175 uint32_t max_refresh_cap_in_uhz, 176 uint32_t min_refresh_request_in_uhz, 177 uint32_t max_refresh_request_in_uhz); 178 179 180 181 #endif 182
Indexes created Sat Sep 20 22:09:52 GMT 2025