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1/*2 * Copyright 2016 Advanced Micro Devices, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: AMD23 *24 */25 26#ifndef MOD_FREESYNC_H_27#define MOD_FREESYNC_H_28 29#include "mod_shared.h"30 31// Access structures32struct mod_freesync {33 int dummy;34};35 36// TODO: References to this should be removed37struct mod_freesync_caps {38 bool supported;39 unsigned int min_refresh_in_micro_hz;40 unsigned int max_refresh_in_micro_hz;41};42 43enum 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_FIXED49};50 51struct 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 62struct 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 72struct 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 80struct 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 90struct 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 110struct mod_freesync *mod_freesync_create(struct dc *dc);111void mod_freesync_destroy(struct mod_freesync *mod_freesync);112 113bool 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 118bool 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 123void 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 132void 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 140void 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 145void 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 151void 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 155unsigned long long mod_freesync_calc_nominal_field_rate(156 const struct dc_stream_state *stream);157 158unsigned long long mod_freesync_calc_field_rate_from_timing(159 unsigned int vtotal, unsigned int htotal, unsigned int pix_clk);160 161bool 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 165unsigned 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)170bool mod_freesync_get_freesync_enabled(struct mod_vrr_params *pVrr);171 172#endif173