1 /* 2 * Copyright 2016 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 27 28 29 /* 30 * Copyright 2016 Advanced Micro Devices, Inc. 31 * 32 * Permission is hereby granted, free of charge, to any person obtaining a 33 * copy of this software and associated documentation files (the "Software"), 34 * to deal in the Software without restriction, including without limitation 35 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 36 * and/or sell copies of the Software, and to permit persons to whom the 37 * Software is furnished to do so, subject to the following conditions: 38 * 39 * The above copyright notice and this permission notice shall be included in 40 * all copies or substantial portions of the Software. 41 * 42 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 43 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 44 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 45 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 46 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 47 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 48 * OTHER DEALINGS IN THE SOFTWARE. 49 * 50 * Authors: AMD 51 * 52 */ 53 54 #ifndef MOD_FREESYNC_H_ 55 #define MOD_FREESYNC_H_ 56 57 #include "mod_shared.h" 58 59 // Access structures 60 struct mod_freesync { 61 int dummy; 62 }; 63 64 // TODO: References to this should be removed 65 struct mod_freesync_caps { 66 bool supported; 67 unsigned int min_refresh_in_micro_hz; 68 unsigned int max_refresh_in_micro_hz; 69 }; 70 71 enum mod_vrr_state { 72 VRR_STATE_UNSUPPORTED = 0, 73 VRR_STATE_DISABLED, 74 VRR_STATE_INACTIVE, 75 VRR_STATE_ACTIVE_VARIABLE, 76 VRR_STATE_ACTIVE_FIXED 77 }; 78 79 struct mod_freesync_config { 80 enum mod_vrr_state state; 81 bool vsif_supported; 82 bool ramping; 83 bool btr; 84 unsigned int min_refresh_in_uhz; 85 unsigned int max_refresh_in_uhz; 86 unsigned int fixed_refresh_in_uhz; 87 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 uint32_t fixed_refresh_in_uhz; 118 119 struct dc_crtc_timing_adjust adjust; 120 121 struct mod_vrr_params_fixed_refresh fixed; 122 123 struct mod_vrr_params_btr btr; 124 }; 125 126 struct mod_freesync *mod_freesync_create(struct dc *dc); 127 void mod_freesync_destroy(struct mod_freesync *mod_freesync); 128 129 bool mod_freesync_get_vmin_vmax(struct mod_freesync *mod_freesync, 130 const struct dc_stream_state *stream, 131 unsigned int *vmin, 132 unsigned int *vmax); 133 134 bool mod_freesync_get_v_position(struct mod_freesync *mod_freesync, 135 struct dc_stream_state *stream, 136 unsigned int *nom_v_pos, 137 unsigned int *v_pos); 138 139 void mod_freesync_get_settings(struct mod_freesync *mod_freesync, 140 const struct mod_vrr_params *vrr, 141 unsigned int *v_total_min, unsigned int *v_total_max, 142 unsigned int *event_triggers, 143 unsigned int *window_min, unsigned int *window_max, 144 unsigned int *lfc_mid_point_in_us, 145 unsigned int *inserted_frames, 146 unsigned int *inserted_duration_in_us); 147 148 void mod_freesync_build_vrr_infopacket(struct mod_freesync *mod_freesync, 149 const struct dc_stream_state *stream, 150 const struct mod_vrr_params *vrr, 151 enum vrr_packet_type packet_type, 152 enum color_transfer_func app_tf, 153 struct dc_info_packet *infopacket); 154 155 void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync, 156 const struct dc_stream_state *stream, 157 struct mod_freesync_config *in_config, 158 struct mod_vrr_params *in_out_vrr); 159 160 void mod_freesync_handle_preflip(struct mod_freesync *mod_freesync, 161 const struct dc_plane_state *plane, 162 const struct dc_stream_state *stream, 163 unsigned int curr_time_stamp_in_us, 164 struct mod_vrr_params *in_out_vrr); 165 166 void mod_freesync_handle_v_update(struct mod_freesync *mod_freesync, 167 const struct dc_stream_state *stream, 168 struct mod_vrr_params *in_out_vrr); 169 170 unsigned long long mod_freesync_calc_nominal_field_rate( 171 const struct dc_stream_state *stream); 172 173 bool mod_freesync_is_valid_range(uint32_t min_refresh_cap_in_uhz, 174 uint32_t max_refresh_cap_in_uhz, 175 uint32_t nominal_field_rate_in_uhz); 176 177 178 179 #endif 180