/* * Copyright 2016 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: AMD * */ #ifndef MOD_FREESYNC_H_#define MOD_FREESYNC_H_ #include "mod_shared.h" // Access structuresstruct mod_freesync {	int dummy;}; // TODO: References to this should be removedstruct mod_freesync_caps {	bool supported;	unsigned int min_refresh_in_micro_hz;	unsigned int max_refresh_in_micro_hz;}; enum mod_vrr_state {	VRR_STATE_UNSUPPORTED = 0,	VRR_STATE_DISABLED,	VRR_STATE_INACTIVE,	VRR_STATE_ACTIVE_VARIABLE,	VRR_STATE_ACTIVE_FIXED}; struct mod_freesync_config {	enum mod_vrr_state state;	bool vsif_supported;	bool ramping;	bool btr;	unsigned int min_refresh_in_uhz;	unsigned int max_refresh_in_uhz;	unsigned int fixed_refresh_in_uhz; }; struct mod_vrr_params_btr {	bool btr_enabled;	bool btr_active;	uint32_t mid_point_in_us;	uint32_t inserted_duration_in_us;	uint32_t frames_to_insert;	uint32_t frame_counter;	uint32_t margin_in_us;}; struct mod_vrr_params_fixed_refresh {	bool fixed_active;	bool ramping_active;	bool ramping_done;	uint32_t target_refresh_in_uhz;	uint32_t frame_counter;}; struct mod_vrr_params_flip_interval {	bool flip_interval_workaround_active;	bool program_flip_interval_workaround;	bool do_flip_interval_workaround_cleanup;	uint32_t flip_interval_detect_counter;	uint32_t vsyncs_between_flip;	uint32_t vsync_to_flip_in_us;	uint32_t v_update_timestamp_in_us;}; struct mod_vrr_params {	bool supported;	bool send_info_frame;	bool m_const_engaged; // this is used when m_const is set up in OPTC so no overriding happens from FreeSync Module	enum mod_vrr_state state; 	uint32_t min_refresh_in_uhz;	uint32_t max_duration_in_us;	uint32_t max_refresh_in_uhz;	uint32_t min_duration_in_us;	uint32_t fixed_refresh_in_uhz; 	uint32_t m_const; 	struct dc_crtc_timing_adjust adjust; 	struct mod_vrr_params_fixed_refresh fixed; 	struct mod_vrr_params_btr btr; 	struct mod_vrr_params_flip_interval flip_interval;}; struct mod_freesync *mod_freesync_create(struct dc *dc);void mod_freesync_destroy(struct mod_freesync *mod_freesync); void mod_freesync_build_vrr_infopacket(struct mod_freesync *mod_freesync,		const struct dc_stream_state *stream,		const struct mod_vrr_params *vrr,		enum vrr_packet_type packet_type,		enum color_transfer_func app_tf,		struct dc_info_packet *infopacket,		bool pack_sdp_v1_3); void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync,		const struct dc_stream_state *stream,		struct mod_freesync_config *in_config,		struct mod_vrr_params *in_out_vrr); void mod_freesync_handle_preflip(struct mod_freesync *mod_freesync,		const struct dc_plane_state *plane,		const struct dc_stream_state *stream,		unsigned int curr_time_stamp_in_us,		struct mod_vrr_params *in_out_vrr); void mod_freesync_handle_v_update(struct mod_freesync *mod_freesync,		const struct dc_stream_state *stream,		struct mod_vrr_params *in_out_vrr); unsigned long long mod_freesync_calc_nominal_field_rate(			const struct dc_stream_state *stream); unsigned int mod_freesync_calc_v_total_from_refresh(		const struct dc_stream_state *stream,		unsigned int refresh_in_uhz); // Returns true when FreeSync is supported and enabled (even if it is inactive)bool mod_freesync_get_freesync_enabled(struct mod_vrr_params *pVrr); #endif