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 }; 87 88 struct mod_vrr_params_btr { 89 bool btr_enabled; 90 bool btr_active; 91 uint32_t mid_point_in_us; 92 uint32_t inserted_duration_in_us; 93 uint32_t frames_to_insert; 94 uint32_t frame_counter; 95 }; 96 97 struct mod_vrr_params_fixed_refresh { 98 bool fixed_active; 99 bool ramping_active; 100 bool ramping_done; 101 uint32_t target_refresh_in_uhz; 102 uint32_t frame_counter; 103 }; 104 105 struct mod_vrr_params { 106 bool supported; 107 bool send_info_frame; 108 enum mod_vrr_state state; 109 110 uint32_t min_refresh_in_uhz; 111 uint32_t max_duration_in_us; 112 uint32_t max_refresh_in_uhz; 113 uint32_t min_duration_in_us; 114 115 struct dc_crtc_timing_adjust adjust; 116 117 struct mod_vrr_params_fixed_refresh fixed; 118 119 struct mod_vrr_params_btr btr; 120 }; 121 122 struct mod_freesync *mod_freesync_create(struct dc *dc); 123 void mod_freesync_destroy(struct mod_freesync *mod_freesync); 124 125 bool mod_freesync_get_vmin_vmax(struct mod_freesync *mod_freesync, 126 const struct dc_stream_state *stream, 127 unsigned int *vmin, 128 unsigned int *vmax); 129 130 bool mod_freesync_get_v_position(struct mod_freesync *mod_freesync, 131 struct dc_stream_state *stream, 132 unsigned int *nom_v_pos, 133 unsigned int *v_pos); 134 135 void mod_freesync_get_settings(struct mod_freesync *mod_freesync, 136 const struct mod_vrr_params *vrr, 137 unsigned int *v_total_min, unsigned int *v_total_max, 138 unsigned int *event_triggers, 139 unsigned int *window_min, unsigned int *window_max, 140 unsigned int *lfc_mid_point_in_us, 141 unsigned int *inserted_frames, 142 unsigned int *inserted_duration_in_us); 143 144 void mod_freesync_build_vrr_infopacket(struct mod_freesync *mod_freesync, 145 const struct dc_stream_state *stream, 146 const struct mod_vrr_params *vrr, 147 enum vrr_packet_type packet_type, 148 enum color_transfer_func app_tf, 149 struct dc_info_packet *infopacket); 150 151 void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync, 152 const struct dc_stream_state *stream, 153 struct mod_freesync_config *in_config, 154 struct mod_vrr_params *in_out_vrr); 155 156 void mod_freesync_handle_preflip(struct mod_freesync *mod_freesync, 157 const struct dc_plane_state *plane, 158 const struct dc_stream_state *stream, 159 unsigned int curr_time_stamp_in_us, 160 struct mod_vrr_params *in_out_vrr); 161 162 void mod_freesync_handle_v_update(struct mod_freesync *mod_freesync, 163 const struct dc_stream_state *stream, 164 struct mod_vrr_params *in_out_vrr); 165 166 unsigned long long mod_freesync_calc_nominal_field_rate( 167 const struct dc_stream_state *stream); 168 169 bool mod_freesync_is_valid_range(struct mod_freesync *mod_freesync, 170 const struct dc_stream_state *stream, 171 uint32_t min_refresh_cap_in_uhz, 172 uint32_t max_refresh_cap_in_uhz, 173 uint32_t min_refresh_request_in_uhz, 174 uint32_t max_refresh_request_in_uhz); 175 176 177 178 #endif 179