/* * Copyright 2012-14 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 DC_INTERFACE_H_ #define DC_INTERFACE_H_ #include "dc_types.h" #include "grph_object_defs.h" #include "logger_types.h" #include "gpio_types.h" #include "link_service_types.h" #include "grph_object_ctrl_defs.h" #include #include "inc/hw_sequencer.h" #include "inc/compressor.h" #include "dml/display_mode_lib.h" #define DC_VER "3.1.07" #define MAX_SURFACES 3 #define MAX_STREAMS 6 #define MAX_SINKS_PER_LINK 4 /******************************************************************************* * Display Core Interfaces ******************************************************************************/ struct dc_caps { uint32_t max_streams; uint32_t max_links; uint32_t max_audios; uint32_t max_slave_planes; uint32_t max_planes; uint32_t max_downscale_ratio; uint32_t i2c_speed_in_khz; unsigned int max_cursor_size; unsigned int max_video_width; bool dcc_const_color; bool dynamic_audio; }; struct dc_dcc_surface_param { struct dc_size surface_size; enum surface_pixel_format format; enum swizzle_mode_values swizzle_mode; enum dc_scan_direction scan; }; struct dc_dcc_setting { unsigned int max_compressed_blk_size; unsigned int max_uncompressed_blk_size; bool independent_64b_blks; }; struct dc_surface_dcc_cap { union { struct { struct dc_dcc_setting rgb; } grph; struct { struct dc_dcc_setting luma; struct dc_dcc_setting chroma; } video; }; bool capable; bool const_color_support; }; struct dc_static_screen_events { bool cursor_update; bool surface_update; bool overlay_update; }; /* Forward declaration*/ struct dc; struct dc_plane_state; struct dc_state; struct dc_cap_funcs { bool (*get_dcc_compression_cap)(const struct dc *dc, const struct dc_dcc_surface_param *input, struct dc_surface_dcc_cap *output); }; struct dc_stream_state_funcs { bool (*adjust_vmin_vmax)(struct dc *dc, struct dc_stream_state **stream, int num_streams, int vmin, int vmax); bool (*get_crtc_position)(struct dc *dc, struct dc_stream_state **stream, int num_streams, unsigned int *v_pos, unsigned int *nom_v_pos); bool (*set_gamut_remap)(struct dc *dc, const struct dc_stream_state *stream); bool (*program_csc_matrix)(struct dc *dc, struct dc_stream_state *stream); void (*set_static_screen_events)(struct dc *dc, struct dc_stream_state **stream, int num_streams, const struct dc_static_screen_events *events); void (*set_dither_option)(struct dc_stream_state *stream, enum dc_dither_option option); void (*set_dpms)(struct dc *dc, struct dc_stream_state *stream, bool dpms_off); }; struct link_training_settings; struct dc_link_funcs { void (*set_drive_settings)(struct dc *dc, struct link_training_settings *lt_settings, const struct dc_link *link); void (*perform_link_training)(struct dc *dc, struct dc_link_settings *link_setting, bool skip_video_pattern); void (*set_preferred_link_settings)(struct dc *dc, struct dc_link_settings *link_setting, struct dc_link *link); void (*enable_hpd)(const struct dc_link *link); void (*disable_hpd)(const struct dc_link *link); void (*set_test_pattern)( struct dc_link *link, enum dp_test_pattern test_pattern, const struct link_training_settings *p_link_settings, const unsigned char *p_custom_pattern, unsigned int cust_pattern_size); }; /* Structure to hold configuration flags set by dm at dc creation. */ struct dc_config { bool gpu_vm_support; bool disable_disp_pll_sharing; }; enum dcc_option { DCC_ENABLE = 0, DCC_DISABLE = 1, DCC_HALF_REQ_DISALBE = 2, }; enum pipe_split_policy { MPC_SPLIT_DYNAMIC = 0, MPC_SPLIT_AVOID = 1, MPC_SPLIT_AVOID_MULT_DISP = 2, }; enum wm_report_mode { WM_REPORT_DEFAULT = 0, WM_REPORT_OVERRIDE = 1, }; struct dc_debug { bool surface_visual_confirm; bool sanity_checks; bool max_disp_clk; bool surface_trace; bool timing_trace; bool clock_trace; bool validation_trace; /* stutter efficiency related */ bool disable_stutter; bool use_max_lb; enum dcc_option disable_dcc; enum pipe_split_policy pipe_split_policy; bool force_single_disp_pipe_split; bool voltage_align_fclk; bool disable_dfs_bypass; bool disable_dpp_power_gate; bool disable_hubp_power_gate; bool disable_pplib_wm_range; enum wm_report_mode pplib_wm_report_mode; unsigned int min_disp_clk_khz; int sr_exit_time_dpm0_ns; int sr_enter_plus_exit_time_dpm0_ns; int sr_exit_time_ns; int sr_enter_plus_exit_time_ns; int urgent_latency_ns; int percent_of_ideal_drambw; int dram_clock_change_latency_ns; int always_scale; bool disable_pplib_clock_request; bool disable_clock_gate; bool disable_dmcu; bool disable_psr; bool force_abm_enable; bool disable_hbup_pg; bool disable_dpp_pg; bool disable_stereo_support; bool vsr_support; bool performance_trace; }; struct dc_state; struct resource_pool; struct dce_hwseq; struct dc { struct dc_caps caps; struct dc_cap_funcs cap_funcs; struct dc_stream_state_funcs stream_funcs; struct dc_link_funcs link_funcs; struct dc_config config; struct dc_debug debug; struct dc_context *ctx; uint8_t link_count; struct dc_link *links[MAX_PIPES * 2]; struct dc_state *current_state; struct resource_pool *res_pool; /* Display Engine Clock levels */ struct dm_pp_clock_levels sclk_lvls; /* Inputs into BW and WM calculations. */ struct bw_calcs_dceip *bw_dceip; struct bw_calcs_vbios *bw_vbios; #ifdef CONFIG_DRM_AMD_DC_DCN1_0 struct dcn_soc_bounding_box *dcn_soc; struct dcn_ip_params *dcn_ip; struct display_mode_lib dml; #endif /* HW functions */ struct hw_sequencer_funcs hwss; struct dce_hwseq *hwseq; /* temp store of dm_pp_display_configuration * to compare to see if display config changed */ struct dm_pp_display_configuration prev_display_config; /* FBC compressor */ #if defined(CONFIG_DRM_AMD_DC_FBC) struct compressor *fbc_compressor; #endif }; enum frame_buffer_mode { FRAME_BUFFER_MODE_LOCAL_ONLY = 0, FRAME_BUFFER_MODE_ZFB_ONLY, FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL, } ; struct dchub_init_data { int64_t zfb_phys_addr_base; int64_t zfb_mc_base_addr; uint64_t zfb_size_in_byte; enum frame_buffer_mode fb_mode; bool dchub_initialzied; bool dchub_info_valid; }; struct dc_init_data { struct hw_asic_id asic_id; void *driver; /* ctx */ struct cgs_device *cgs_device; int num_virtual_links; /* * If 'vbios_override' not NULL, it will be called instead * of the real VBIOS. Intended use is Diagnostics on FPGA. */ struct dc_bios *vbios_override; enum dce_environment dce_environment; struct dc_config flags; uint32_t log_mask; #if defined(CONFIG_DRM_AMD_DC_FBC) uint64_t fbc_gpu_addr; #endif }; struct dc *dc_create(const struct dc_init_data *init_params); void dc_destroy(struct dc **dc); /******************************************************************************* * Surface Interfaces ******************************************************************************/ enum { TRANSFER_FUNC_POINTS = 1025 }; // Moved here from color module for linux enum color_transfer_func { transfer_func_unknown, transfer_func_srgb, transfer_func_bt709, transfer_func_pq2084, transfer_func_pq2084_interim, transfer_func_linear_0_1, transfer_func_linear_0_125, transfer_func_dolbyvision, transfer_func_gamma_22, transfer_func_gamma_26 }; enum color_color_space { color_space_unsupported, color_space_srgb, color_space_bt601, color_space_bt709, color_space_xv_ycc_bt601, color_space_xv_ycc_bt709, color_space_xr_rgb, color_space_bt2020, color_space_adobe, color_space_dci_p3, color_space_sc_rgb_ms_ref, color_space_display_native, color_space_app_ctrl, color_space_dolby_vision, color_space_custom_coordinates }; struct dc_hdr_static_metadata { /* display chromaticities and white point in units of 0.00001 */ unsigned int chromaticity_green_x; unsigned int chromaticity_green_y; unsigned int chromaticity_blue_x; unsigned int chromaticity_blue_y; unsigned int chromaticity_red_x; unsigned int chromaticity_red_y; unsigned int chromaticity_white_point_x; unsigned int chromaticity_white_point_y; uint32_t min_luminance; uint32_t max_luminance; uint32_t maximum_content_light_level; uint32_t maximum_frame_average_light_level; bool hdr_supported; bool is_hdr; }; enum dc_transfer_func_type { TF_TYPE_PREDEFINED, TF_TYPE_DISTRIBUTED_POINTS, TF_TYPE_BYPASS }; struct dc_transfer_func_distributed_points { struct fixed31_32 red[TRANSFER_FUNC_POINTS]; struct fixed31_32 green[TRANSFER_FUNC_POINTS]; struct fixed31_32 blue[TRANSFER_FUNC_POINTS]; uint16_t end_exponent; uint16_t x_point_at_y1_red; uint16_t x_point_at_y1_green; uint16_t x_point_at_y1_blue; }; enum dc_transfer_func_predefined { TRANSFER_FUNCTION_SRGB, TRANSFER_FUNCTION_BT709, TRANSFER_FUNCTION_PQ, TRANSFER_FUNCTION_LINEAR, }; struct dc_transfer_func { struct kref refcount; struct dc_transfer_func_distributed_points tf_pts; enum dc_transfer_func_type type; enum dc_transfer_func_predefined tf; struct dc_context *ctx; }; /* * This structure is filled in by dc_surface_get_status and contains * the last requested address and the currently active address so the called * can determine if there are any outstanding flips */ struct dc_plane_status { struct dc_plane_address requested_address; struct dc_plane_address current_address; bool is_flip_pending; bool is_right_eye; }; struct dc_plane_state { struct dc_plane_address address; struct scaling_taps scaling_quality; struct rect src_rect; struct rect dst_rect; struct rect clip_rect; union plane_size plane_size; union dc_tiling_info tiling_info; struct dc_plane_dcc_param dcc; struct dc_hdr_static_metadata hdr_static_ctx; struct dc_gamma *gamma_correction; struct dc_transfer_func *in_transfer_func; // sourceContentAttribute cache bool is_source_input_valid; struct dc_hdr_static_metadata source_input_mastering_info; enum color_color_space source_input_color_space; enum color_transfer_func source_input_tf; enum dc_color_space color_space; enum surface_pixel_format format; enum dc_rotation_angle rotation; enum plane_stereo_format stereo_format; bool per_pixel_alpha; bool visible; bool flip_immediate; bool horizontal_mirror; /* private to DC core */ struct dc_plane_status status; struct dc_context *ctx; /* private to dc_surface.c */ enum dc_irq_source irq_source; struct kref refcount; }; struct dc_plane_info { union plane_size plane_size; union dc_tiling_info tiling_info; struct dc_plane_dcc_param dcc; enum surface_pixel_format format; enum dc_rotation_angle rotation; enum plane_stereo_format stereo_format; enum dc_color_space color_space; /*todo: wrong place, fits in scaling info*/ bool horizontal_mirror; bool visible; bool per_pixel_alpha; }; struct dc_scaling_info { struct rect src_rect; struct rect dst_rect; struct rect clip_rect; struct scaling_taps scaling_quality; }; struct dc_surface_update { struct dc_plane_state *surface; /* isr safe update parameters. null means no updates */ struct dc_flip_addrs *flip_addr; struct dc_plane_info *plane_info; struct dc_scaling_info *scaling_info; /* following updates require alloc/sleep/spin that is not isr safe, * null means no updates */ /* gamma TO BE REMOVED */ struct dc_gamma *gamma; struct dc_transfer_func *in_transfer_func; struct dc_hdr_static_metadata *hdr_static_metadata; }; /* * Create a new surface with default parameters; */ struct dc_plane_state *dc_create_plane_state(struct dc *dc); const struct dc_plane_status *dc_plane_get_status( const struct dc_plane_state *plane_state); void dc_plane_state_retain(struct dc_plane_state *plane_state); void dc_plane_state_release(struct dc_plane_state *plane_state); void dc_gamma_retain(struct dc_gamma *dc_gamma); void dc_gamma_release(struct dc_gamma **dc_gamma); struct dc_gamma *dc_create_gamma(void); void dc_transfer_func_retain(struct dc_transfer_func *dc_tf); void dc_transfer_func_release(struct dc_transfer_func *dc_tf); struct dc_transfer_func *dc_create_transfer_func(void); /* * This structure holds a surface address. There could be multiple addresses * in cases such as Stereo 3D, Planar YUV, etc. Other per-flip attributes such * as frame durations and DCC format can also be set. */ struct dc_flip_addrs { struct dc_plane_address address; bool flip_immediate; /* TODO: add flip duration for FreeSync */ }; bool dc_post_update_surfaces_to_stream( struct dc *dc); /* Surface update type is used by dc_update_surfaces_and_stream * The update type is determined at the very beginning of the function based * on parameters passed in and decides how much programming (or updating) is * going to be done during the call. * * UPDATE_TYPE_FAST is used for really fast updates that do not require much * logical calculations or hardware register programming. This update MUST be * ISR safe on windows. Currently fast update will only be used to flip surface * address. * * UPDATE_TYPE_MED is used for slower updates which require significant hw * re-programming however do not affect bandwidth consumption or clock * requirements. At present, this is the level at which front end updates * that do not require us to run bw_calcs happen. These are in/out transfer func * updates, viewport offset changes, recout size changes and pixel depth changes. * This update can be done at ISR, but we want to minimize how often this happens. * * UPDATE_TYPE_FULL is slow. Really slow. This requires us to recalculate our * bandwidth and clocks, possibly rearrange some pipes and reprogram anything front * end related. Any time viewport dimensions, recout dimensions, scaling ratios or * gamma need to be adjusted or pipe needs to be turned on (or disconnected) we do * a full update. This cannot be done at ISR level and should be a rare event. * Unless someone is stress testing mpo enter/exit, playing with colour or adjusting * underscan we don't expect to see this call at all. */ enum surface_update_type { UPDATE_TYPE_FAST, /* super fast, safe to execute in isr */ UPDATE_TYPE_MED, /* ISR safe, most of programming needed, no bw/clk change*/ UPDATE_TYPE_FULL, /* may need to shuffle resources */ }; /******************************************************************************* * Stream Interfaces ******************************************************************************/ struct dc_stream_status { int primary_otg_inst; int stream_enc_inst; int plane_count; struct dc_plane_state *plane_states[MAX_SURFACE_NUM]; /* * link this stream passes through */ struct dc_link *link; }; struct dc_stream_state { struct dc_sink *sink; struct dc_crtc_timing timing; struct rect src; /* composition area */ struct rect dst; /* stream addressable area */ struct audio_info audio_info; struct freesync_context freesync_ctx; struct dc_transfer_func *out_transfer_func; struct colorspace_transform gamut_remap_matrix; struct csc_transform csc_color_matrix; enum signal_type output_signal; enum dc_color_space output_color_space; enum dc_dither_option dither_option; enum view_3d_format view_format; bool ignore_msa_timing_param; /* TODO: custom INFO packets */ /* TODO: ABM info (DMCU) */ /* TODO: PSR info */ /* TODO: CEA VIC */ /* from core_stream struct */ struct dc_context *ctx; /* used by DCP and FMT */ struct bit_depth_reduction_params bit_depth_params; struct clamping_and_pixel_encoding_params clamping; int phy_pix_clk; enum signal_type signal; bool dpms_off; struct dc_stream_status status; struct dc_cursor_attributes cursor_attributes; /* from stream struct */ struct kref refcount; }; struct dc_stream_update { struct rect src; struct rect dst; struct dc_transfer_func *out_transfer_func; }; bool dc_is_stream_unchanged( struct dc_stream_state *old_stream, struct dc_stream_state *stream); bool dc_is_stream_scaling_unchanged( struct dc_stream_state *old_stream, struct dc_stream_state *stream); /* * Set up surface attributes and associate to a stream * The surfaces parameter is an absolute set of all surface active for the stream. * If no surfaces are provided, the stream will be blanked; no memory read. * Any flip related attribute changes must be done through this interface. * * After this call: * Surfaces attributes are programmed and configured to be composed into stream. * This does not trigger a flip. No surface address is programmed. */ bool dc_commit_planes_to_stream( struct dc *dc, struct dc_plane_state **plane_states, uint8_t new_plane_count, struct dc_stream_state *dc_stream, struct dc_state *state); void dc_commit_updates_for_stream(struct dc *dc, struct dc_surface_update *srf_updates, int surface_count, struct dc_stream_state *stream, struct dc_stream_update *stream_update, struct dc_plane_state **plane_states, struct dc_state *state); /* * Log the current stream state. */ void dc_stream_log( const struct dc_stream_state *stream, struct dal_logger *dc_logger, enum dc_log_type log_type); uint8_t dc_get_current_stream_count(struct dc *dc); struct dc_stream_state *dc_get_stream_at_index(struct dc *dc, uint8_t i); /* * Return the current frame counter. */ uint32_t dc_stream_get_vblank_counter(const struct dc_stream_state *stream); /* TODO: Return parsed values rather than direct register read * This has a dependency on the caller (amdgpu_get_crtc_scanoutpos) * being refactored properly to be dce-specific */ bool dc_stream_get_scanoutpos(const struct dc_stream_state *stream, uint32_t *v_blank_start, uint32_t *v_blank_end, uint32_t *h_position, uint32_t *v_position); enum dc_status dc_add_stream_to_ctx( struct dc *dc, struct dc_state *new_ctx, struct dc_stream_state *stream); enum dc_status dc_remove_stream_from_ctx( struct dc *dc, struct dc_state *new_ctx, struct dc_stream_state *stream); bool dc_add_plane_to_context( const struct dc *dc, struct dc_stream_state *stream, struct dc_plane_state *plane_state, struct dc_state *context); bool dc_remove_plane_from_context( const struct dc *dc, struct dc_stream_state *stream, struct dc_plane_state *plane_state, struct dc_state *context); bool dc_rem_all_planes_for_stream( const struct dc *dc, struct dc_stream_state *stream, struct dc_state *context); bool dc_add_all_planes_for_stream( const struct dc *dc, struct dc_stream_state *stream, struct dc_plane_state * const *plane_states, int plane_count, struct dc_state *context); /* * Structure to store surface/stream associations for validation */ struct dc_validation_set { struct dc_stream_state *stream; struct dc_plane_state *plane_states[MAX_SURFACES]; uint8_t plane_count; }; enum dc_status dc_validate_stream(struct dc *dc, struct dc_stream_state *stream); enum dc_status dc_validate_plane(struct dc *dc, const struct dc_plane_state *plane_state); enum dc_status dc_validate_global_state( struct dc *dc, struct dc_state *new_ctx); /* * This function takes a stream and checks if it is guaranteed to be supported. * Guaranteed means that MAX_COFUNC similar streams are supported. * * After this call: * No hardware is programmed for call. Only validation is done. */ void dc_resource_state_construct( const struct dc *dc, struct dc_state *dst_ctx); void dc_resource_state_copy_construct( const struct dc_state *src_ctx, struct dc_state *dst_ctx); void dc_resource_state_copy_construct_current( const struct dc *dc, struct dc_state *dst_ctx); void dc_resource_state_destruct(struct dc_state *context); /* * TODO update to make it about validation sets * Set up streams and links associated to drive sinks * The streams parameter is an absolute set of all active streams. * * After this call: * Phy, Encoder, Timing Generator are programmed and enabled. * New streams are enabled with blank stream; no memory read. */ bool dc_commit_state(struct dc *dc, struct dc_state *context); /* * Set up streams and links associated to drive sinks * The streams parameter is an absolute set of all active streams. * * After this call: * Phy, Encoder, Timing Generator are programmed and enabled. * New streams are enabled with blank stream; no memory read. */ /* * Enable stereo when commit_streams is not required, * for example, frame alternate. */ bool dc_enable_stereo( struct dc *dc, struct dc_state *context, struct dc_stream_state *streams[], uint8_t stream_count); /** * Create a new default stream for the requested sink */ struct dc_stream_state *dc_create_stream_for_sink(struct dc_sink *dc_sink); void dc_stream_retain(struct dc_stream_state *dc_stream); void dc_stream_release(struct dc_stream_state *dc_stream); struct dc_stream_status *dc_stream_get_status( struct dc_stream_state *dc_stream); enum surface_update_type dc_check_update_surfaces_for_stream( struct dc *dc, struct dc_surface_update *updates, int surface_count, struct dc_stream_update *stream_update, const struct dc_stream_status *stream_status); struct dc_state *dc_create_state(void); void dc_retain_state(struct dc_state *context); void dc_release_state(struct dc_state *context); /******************************************************************************* * Link Interfaces ******************************************************************************/ struct dpcd_caps { union dpcd_rev dpcd_rev; union max_lane_count max_ln_count; union max_down_spread max_down_spread; /* dongle type (DP converter, CV smart dongle) */ enum display_dongle_type dongle_type; /* Dongle's downstream count. */ union sink_count sink_count; /* If dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER, indicates 'Frame Sequential-to-lllFrame Pack' conversion capability.*/ struct dc_dongle_caps dongle_caps; uint32_t sink_dev_id; uint32_t branch_dev_id; int8_t branch_dev_name[6]; int8_t branch_hw_revision; bool allow_invalid_MSA_timing_param; bool panel_mode_edp; bool dpcd_display_control_capable; }; struct dc_link_status { struct dpcd_caps *dpcd_caps; }; /* DP MST stream allocation (payload bandwidth number) */ struct link_mst_stream_allocation { /* DIG front */ const struct stream_encoder *stream_enc; /* associate DRM payload table with DC stream encoder */ uint8_t vcp_id; /* number of slots required for the DP stream in transport packet */ uint8_t slot_count; }; /* DP MST stream allocation table */ struct link_mst_stream_allocation_table { /* number of DP video streams */ int stream_count; /* array of stream allocations */ struct link_mst_stream_allocation stream_allocations[MAX_CONTROLLER_NUM]; }; /* * A link contains one or more sinks and their connected status. * The currently active signal type (HDMI, DP-SST, DP-MST) is also reported. */ struct dc_link { struct dc_sink *remote_sinks[MAX_SINKS_PER_LINK]; unsigned int sink_count; struct dc_sink *local_sink; unsigned int link_index; enum dc_connection_type type; enum signal_type connector_signal; enum dc_irq_source irq_source_hpd; enum dc_irq_source irq_source_hpd_rx;/* aka DP Short Pulse */ /* caps is the same as reported_link_cap. link_traing use * reported_link_cap. Will clean up. TODO */ struct dc_link_settings reported_link_cap; struct dc_link_settings verified_link_cap; struct dc_link_settings cur_link_settings; struct dc_lane_settings cur_lane_setting; struct dc_link_settings preferred_link_setting; uint8_t ddc_hw_inst; uint8_t hpd_src; uint8_t link_enc_hw_inst; bool test_pattern_enabled; union compliance_test_state compliance_test_state; void *priv; struct ddc_service *ddc; bool aux_mode; /* Private to DC core */ const struct dc *dc; struct dc_context *ctx; struct link_encoder *link_enc; struct graphics_object_id link_id; union ddi_channel_mapping ddi_channel_mapping; struct connector_device_tag_info device_tag; struct dpcd_caps dpcd_caps; unsigned short chip_caps; unsigned int dpcd_sink_count; enum edp_revision edp_revision; bool psr_enabled; /* MST record stream using this link */ struct link_flags { bool dp_keep_receiver_powered; } wa_flags; struct link_mst_stream_allocation_table mst_stream_alloc_table; struct dc_link_status link_status; }; const struct dc_link_status *dc_link_get_status(const struct dc_link *dc_link); /* * Return an enumerated dc_link. dc_link order is constant and determined at * boot time. They cannot be created or destroyed. * Use dc_get_caps() to get number of links. */ static inline struct dc_link *dc_get_link_at_index(struct dc *dc, uint32_t link_index) { return dc->links[link_index]; } /* Set backlight level of an embedded panel (eDP, LVDS). */ bool dc_link_set_backlight_level(const struct dc_link *dc_link, uint32_t level, uint32_t frame_ramp, const struct dc_stream_state *stream); bool dc_link_set_psr_enable(const struct dc_link *dc_link, bool enable, bool wait); bool dc_link_get_psr_state(const struct dc_link *dc_link, uint32_t *psr_state); bool dc_link_setup_psr(struct dc_link *dc_link, const struct dc_stream_state *stream, struct psr_config *psr_config, struct psr_context *psr_context); /* Request DC to detect if there is a Panel connected. * boot - If this call is during initial boot. * Return false for any type of detection failure or MST detection * true otherwise. True meaning further action is required (status update * and OS notification). */ enum dc_detect_reason { DETECT_REASON_BOOT, DETECT_REASON_HPD, DETECT_REASON_HPDRX, }; bool dc_link_detect(struct dc_link *dc_link, enum dc_detect_reason reason); /* Notify DC about DP RX Interrupt (aka Short Pulse Interrupt). * Return: * true - Downstream port status changed. DM should call DC to do the * detection. * false - no change in Downstream port status. No further action required * from DM. */ bool dc_link_handle_hpd_rx_irq(struct dc_link *dc_link, union hpd_irq_data *hpd_irq_dpcd_data); struct dc_sink_init_data; struct dc_sink *dc_link_add_remote_sink( struct dc_link *dc_link, const uint8_t *edid, int len, struct dc_sink_init_data *init_data); void dc_link_remove_remote_sink( struct dc_link *link, struct dc_sink *sink); /* Used by diagnostics for virtual link at the moment */ void dc_link_dp_set_drive_settings( struct dc_link *link, struct link_training_settings *lt_settings); enum link_training_result dc_link_dp_perform_link_training( struct dc_link *link, const struct dc_link_settings *link_setting, bool skip_video_pattern); void dc_link_dp_enable_hpd(const struct dc_link *link); void dc_link_dp_disable_hpd(const struct dc_link *link); bool dc_link_dp_set_test_pattern( struct dc_link *link, enum dp_test_pattern test_pattern, const struct link_training_settings *p_link_settings, const unsigned char *p_custom_pattern, unsigned int cust_pattern_size); /******************************************************************************* * Sink Interfaces - A sink corresponds to a display output device ******************************************************************************/ struct dc_container_id { // 128bit GUID in binary form unsigned char guid[16]; // 8 byte port ID -> ELD.PortID unsigned int portId[2]; // 128bit GUID in binary formufacturer name -> ELD.ManufacturerName unsigned short manufacturerName; // 2 byte product code -> ELD.ProductCode unsigned short productCode; }; /* * The sink structure contains EDID and other display device properties */ struct dc_sink { enum signal_type sink_signal; struct dc_edid dc_edid; /* raw edid */ struct dc_edid_caps edid_caps; /* parse display caps */ struct dc_container_id *dc_container_id; uint32_t dongle_max_pix_clk; void *priv; struct stereo_3d_features features_3d[TIMING_3D_FORMAT_MAX]; bool converter_disable_audio; /* private to DC core */ struct dc_link *link; struct dc_context *ctx; /* private to dc_sink.c */ struct kref refcount; }; void dc_sink_retain(struct dc_sink *sink); void dc_sink_release(struct dc_sink *sink); struct dc_sink_init_data { enum signal_type sink_signal; struct dc_link *link; uint32_t dongle_max_pix_clk; bool converter_disable_audio; }; struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params); /******************************************************************************* * Cursor interfaces - To manages the cursor within a stream ******************************************************************************/ /* TODO: Deprecated once we switch to dc_set_cursor_position */ bool dc_stream_set_cursor_attributes( struct dc_stream_state *stream, const struct dc_cursor_attributes *attributes); bool dc_stream_set_cursor_position( struct dc_stream_state *stream, const struct dc_cursor_position *position); /* Newer interfaces */ struct dc_cursor { struct dc_plane_address address; struct dc_cursor_attributes attributes; }; /******************************************************************************* * Interrupt interfaces ******************************************************************************/ enum dc_irq_source dc_interrupt_to_irq_source( struct dc *dc, uint32_t src_id, uint32_t ext_id); void dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable); void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src); enum dc_irq_source dc_get_hpd_irq_source_at_index( struct dc *dc, uint32_t link_index); /******************************************************************************* * Power Interfaces ******************************************************************************/ void dc_set_power_state( struct dc *dc, enum dc_acpi_cm_power_state power_state); void dc_resume(struct dc *dc); /* * DPCD access interfaces */ bool dc_submit_i2c( struct dc *dc, uint32_t link_index, struct i2c_command *cmd); #endif /* DC_INTERFACE_H_ */