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 #ifndef MOD_FREESYNC_H_ 27 #define MOD_FREESYNC_H_ 28 29 #include "mod_shared.h" 30 31 // Access structures 32 struct mod_freesync { 33 int dummy; 34 }; 35 36 // TODO: References to this should be removed 37 struct mod_freesync_caps { 38 bool supported; 39 unsigned int min_refresh_in_micro_hz; 40 unsigned int max_refresh_in_micro_hz; 41 }; 42 43 enum mod_vrr_state { 44 VRR_STATE_UNSUPPORTED = 0, 45 VRR_STATE_DISABLED, 46 VRR_STATE_INACTIVE, 47 VRR_STATE_ACTIVE_VARIABLE, 48 VRR_STATE_ACTIVE_FIXED 49 }; 50 51 struct mod_freesync_config { 52 enum mod_vrr_state state; 53 bool vsif_supported; 54 bool ramping; 55 bool btr; 56 unsigned int min_refresh_in_uhz; 57 unsigned int max_refresh_in_uhz; 58 unsigned int fixed_refresh_in_uhz; 59 60 }; 61 62 struct mod_vrr_params_btr { 63 bool btr_enabled; 64 bool btr_active; 65 uint32_t mid_point_in_us; 66 uint32_t inserted_duration_in_us; 67 uint32_t frames_to_insert; 68 uint32_t frame_counter; 69 uint32_t margin_in_us; 70 }; 71 72 struct mod_vrr_params_fixed_refresh { 73 bool fixed_active; 74 bool ramping_active; 75 bool ramping_done; 76 uint32_t target_refresh_in_uhz; 77 uint32_t frame_counter; 78 }; 79 80 struct mod_vrr_params_flip_interval { 81 bool flip_interval_workaround_active; 82 bool program_flip_interval_workaround; 83 bool do_flip_interval_workaround_cleanup; 84 uint32_t flip_interval_detect_counter; 85 uint32_t vsyncs_between_flip; 86 uint32_t vsync_to_flip_in_us; 87 uint32_t v_update_timestamp_in_us; 88 }; 89 90 struct mod_vrr_params { 91 bool supported; 92 bool send_info_frame; 93 enum mod_vrr_state state; 94 95 uint32_t min_refresh_in_uhz; 96 uint32_t max_duration_in_us; 97 uint32_t max_refresh_in_uhz; 98 uint32_t min_duration_in_us; 99 uint32_t fixed_refresh_in_uhz; 100 101 struct dc_crtc_timing_adjust adjust; 102 103 struct mod_vrr_params_fixed_refresh fixed; 104 105 struct mod_vrr_params_btr btr; 106 107 struct mod_vrr_params_flip_interval flip_interval; 108 }; 109 110 struct mod_freesync *mod_freesync_create(struct dc *dc); 111 void mod_freesync_destroy(struct mod_freesync *mod_freesync); 112 113 bool mod_freesync_get_vmin_vmax(struct mod_freesync *mod_freesync, 114 const struct dc_stream_state *stream, 115 unsigned int *vmin, 116 unsigned int *vmax); 117 118 bool mod_freesync_get_v_position(struct mod_freesync *mod_freesync, 119 struct dc_stream_state *stream, 120 unsigned int *nom_v_pos, 121 unsigned int *v_pos); 122 123 void mod_freesync_get_settings(struct mod_freesync *mod_freesync, 124 const struct mod_vrr_params *vrr, 125 unsigned int *v_total_min, unsigned int *v_total_max, 126 unsigned int *event_triggers, 127 unsigned int *window_min, unsigned int *window_max, 128 unsigned int *lfc_mid_point_in_us, 129 unsigned int *inserted_frames, 130 unsigned int *inserted_duration_in_us); 131 132 void mod_freesync_build_vrr_infopacket(struct mod_freesync *mod_freesync, 133 const struct dc_stream_state *stream, 134 const struct mod_vrr_params *vrr, 135 enum vrr_packet_type packet_type, 136 enum color_transfer_func app_tf, 137 struct dc_info_packet *infopacket, 138 bool pack_sdp_v1_3); 139 140 void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync, 141 const struct dc_stream_state *stream, 142 struct mod_freesync_config *in_config, 143 struct mod_vrr_params *in_out_vrr); 144 145 void mod_freesync_handle_preflip(struct mod_freesync *mod_freesync, 146 const struct dc_plane_state *plane, 147 const struct dc_stream_state *stream, 148 unsigned int curr_time_stamp_in_us, 149 struct mod_vrr_params *in_out_vrr); 150 151 void mod_freesync_handle_v_update(struct mod_freesync *mod_freesync, 152 const struct dc_stream_state *stream, 153 struct mod_vrr_params *in_out_vrr); 154 155 unsigned long long mod_freesync_calc_nominal_field_rate( 156 const struct dc_stream_state *stream); 157 158 unsigned long long mod_freesync_calc_field_rate_from_timing( 159 unsigned int vtotal, unsigned int htotal, unsigned int pix_clk); 160 161 bool mod_freesync_is_valid_range(uint32_t min_refresh_cap_in_uhz, 162 uint32_t max_refresh_cap_in_uhz, 163 uint32_t nominal_field_rate_in_uhz); 164 165 unsigned int mod_freesync_calc_v_total_from_refresh( 166 const struct dc_stream_state *stream, 167 unsigned int refresh_in_uhz); 168 169 // Returns true when FreeSync is supported and enabled (even if it is inactive) 170 bool mod_freesync_get_freesync_enabled(struct mod_vrr_params *pVrr); 171 172 #endif 173