diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h b/drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h new file mode 100644 index 000000000..afe1f6cce --- /dev/null +++ b/drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h @@ -0,0 +1,200 @@ +/* + * 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 + * + */ + + + + +/* + * 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 structures +struct mod_freesync { + int dummy; +}; + +// TODO: References to this should be removed +struct 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; + 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; + + 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); + +bool mod_freesync_get_vmin_vmax(struct mod_freesync *mod_freesync, + const struct dc_stream_state *stream, + unsigned int *vmin, + unsigned int *vmax); + +bool mod_freesync_get_v_position(struct mod_freesync *mod_freesync, + struct dc_stream_state *stream, + unsigned int *nom_v_pos, + unsigned int *v_pos); + +void mod_freesync_get_settings(struct mod_freesync *mod_freesync, + const struct mod_vrr_params *vrr, + unsigned int *v_total_min, unsigned int *v_total_max, + unsigned int *event_triggers, + unsigned int *window_min, unsigned int *window_max, + unsigned int *lfc_mid_point_in_us, + unsigned int *inserted_frames, + unsigned int *inserted_duration_in_us); + +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 long long mod_freesync_calc_field_rate_from_timing( + unsigned int vtotal, unsigned int htotal, unsigned int pix_clk); + +bool mod_freesync_is_valid_range(uint32_t min_refresh_cap_in_uhz, + uint32_t max_refresh_cap_in_uhz, + uint32_t nominal_field_rate_in_uhz); + +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 |