xref: /openbmc/linux/drivers/gpu/drm/amd/display/dc/dc.h (revision 023e4163)
1 /*
2  * Copyright 2012-14 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 DC_INTERFACE_H_
27 #define DC_INTERFACE_H_
28 
29 #include "dc_types.h"
30 #include "grph_object_defs.h"
31 #include "logger_types.h"
32 #include "gpio_types.h"
33 #include "link_service_types.h"
34 #include "grph_object_ctrl_defs.h"
35 #include <inc/hw/opp.h>
36 
37 #include "inc/hw_sequencer.h"
38 #include "inc/compressor.h"
39 #include "inc/hw/dmcu.h"
40 #include "dml/display_mode_lib.h"
41 
42 #define DC_VER "3.2.17"
43 
44 #define MAX_SURFACES 3
45 #define MAX_STREAMS 6
46 #define MAX_SINKS_PER_LINK 4
47 
48 /*******************************************************************************
49  * Display Core Interfaces
50  ******************************************************************************/
51 struct dc_versions {
52 	const char *dc_ver;
53 	struct dmcu_version dmcu_version;
54 };
55 
56 struct dc_caps {
57 	uint32_t max_streams;
58 	uint32_t max_links;
59 	uint32_t max_audios;
60 	uint32_t max_slave_planes;
61 	uint32_t max_planes;
62 	uint32_t max_downscale_ratio;
63 	uint32_t i2c_speed_in_khz;
64 	uint32_t dmdata_alloc_size;
65 	unsigned int max_cursor_size;
66 	unsigned int max_video_width;
67 	int linear_pitch_alignment;
68 	bool dcc_const_color;
69 	bool dynamic_audio;
70 	bool is_apu;
71 	bool dual_link_dvi;
72 	bool post_blend_color_processing;
73 	bool force_dp_tps4_for_cp2520;
74 	bool disable_dp_clk_share;
75 	bool psp_setup_panel_mode;
76 };
77 
78 struct dc_dcc_surface_param {
79 	struct dc_size surface_size;
80 	enum surface_pixel_format format;
81 	enum swizzle_mode_values swizzle_mode;
82 	enum dc_scan_direction scan;
83 };
84 
85 struct dc_dcc_setting {
86 	unsigned int max_compressed_blk_size;
87 	unsigned int max_uncompressed_blk_size;
88 	bool independent_64b_blks;
89 };
90 
91 struct dc_surface_dcc_cap {
92 	union {
93 		struct {
94 			struct dc_dcc_setting rgb;
95 		} grph;
96 
97 		struct {
98 			struct dc_dcc_setting luma;
99 			struct dc_dcc_setting chroma;
100 		} video;
101 	};
102 
103 	bool capable;
104 	bool const_color_support;
105 };
106 
107 struct dc_static_screen_events {
108 	bool force_trigger;
109 	bool cursor_update;
110 	bool surface_update;
111 	bool overlay_update;
112 };
113 
114 
115 /* Surface update type is used by dc_update_surfaces_and_stream
116  * The update type is determined at the very beginning of the function based
117  * on parameters passed in and decides how much programming (or updating) is
118  * going to be done during the call.
119  *
120  * UPDATE_TYPE_FAST is used for really fast updates that do not require much
121  * logical calculations or hardware register programming. This update MUST be
122  * ISR safe on windows. Currently fast update will only be used to flip surface
123  * address.
124  *
125  * UPDATE_TYPE_MED is used for slower updates which require significant hw
126  * re-programming however do not affect bandwidth consumption or clock
127  * requirements. At present, this is the level at which front end updates
128  * that do not require us to run bw_calcs happen. These are in/out transfer func
129  * updates, viewport offset changes, recout size changes and pixel depth changes.
130  * This update can be done at ISR, but we want to minimize how often this happens.
131  *
132  * UPDATE_TYPE_FULL is slow. Really slow. This requires us to recalculate our
133  * bandwidth and clocks, possibly rearrange some pipes and reprogram anything front
134  * end related. Any time viewport dimensions, recout dimensions, scaling ratios or
135  * gamma need to be adjusted or pipe needs to be turned on (or disconnected) we do
136  * a full update. This cannot be done at ISR level and should be a rare event.
137  * Unless someone is stress testing mpo enter/exit, playing with colour or adjusting
138  * underscan we don't expect to see this call at all.
139  */
140 
141 enum surface_update_type {
142 	UPDATE_TYPE_FAST, /* super fast, safe to execute in isr */
143 	UPDATE_TYPE_MED,  /* ISR safe, most of programming needed, no bw/clk change*/
144 	UPDATE_TYPE_FULL, /* may need to shuffle resources */
145 };
146 
147 /* Forward declaration*/
148 struct dc;
149 struct dc_plane_state;
150 struct dc_state;
151 
152 
153 struct dc_cap_funcs {
154 	bool (*get_dcc_compression_cap)(const struct dc *dc,
155 			const struct dc_dcc_surface_param *input,
156 			struct dc_surface_dcc_cap *output);
157 };
158 
159 struct link_training_settings;
160 
161 
162 /* Structure to hold configuration flags set by dm at dc creation. */
163 struct dc_config {
164 	bool gpu_vm_support;
165 	bool disable_disp_pll_sharing;
166 	bool fbc_support;
167 };
168 
169 enum visual_confirm {
170 	VISUAL_CONFIRM_DISABLE = 0,
171 	VISUAL_CONFIRM_SURFACE = 1,
172 	VISUAL_CONFIRM_HDR = 2,
173 };
174 
175 enum dcc_option {
176 	DCC_ENABLE = 0,
177 	DCC_DISABLE = 1,
178 	DCC_HALF_REQ_DISALBE = 2,
179 };
180 
181 enum pipe_split_policy {
182 	MPC_SPLIT_DYNAMIC = 0,
183 	MPC_SPLIT_AVOID = 1,
184 	MPC_SPLIT_AVOID_MULT_DISP = 2,
185 };
186 
187 enum wm_report_mode {
188 	WM_REPORT_DEFAULT = 0,
189 	WM_REPORT_OVERRIDE = 1,
190 };
191 
192 /*
193  * For any clocks that may differ per pipe
194  * only the max is stored in this structure
195  */
196 struct dc_clocks {
197 	int dispclk_khz;
198 	int max_supported_dppclk_khz;
199 	int dppclk_khz;
200 	int dcfclk_khz;
201 	int socclk_khz;
202 	int dcfclk_deep_sleep_khz;
203 	int fclk_khz;
204 	int phyclk_khz;
205 	int dramclk_khz;
206 };
207 
208 struct dc_debug_options {
209 	enum visual_confirm visual_confirm;
210 	bool sanity_checks;
211 	bool max_disp_clk;
212 	bool surface_trace;
213 	bool timing_trace;
214 	bool clock_trace;
215 	bool validation_trace;
216 	bool bandwidth_calcs_trace;
217 	int max_downscale_src_width;
218 
219 	/* stutter efficiency related */
220 	bool disable_stutter;
221 	bool use_max_lb;
222 	enum dcc_option disable_dcc;
223 	enum pipe_split_policy pipe_split_policy;
224 	bool force_single_disp_pipe_split;
225 	bool voltage_align_fclk;
226 
227 	bool disable_dfs_bypass;
228 	bool disable_dpp_power_gate;
229 	bool disable_hubp_power_gate;
230 	bool disable_pplib_wm_range;
231 	enum wm_report_mode pplib_wm_report_mode;
232 	unsigned int min_disp_clk_khz;
233 	int sr_exit_time_dpm0_ns;
234 	int sr_enter_plus_exit_time_dpm0_ns;
235 	int sr_exit_time_ns;
236 	int sr_enter_plus_exit_time_ns;
237 	int urgent_latency_ns;
238 	int percent_of_ideal_drambw;
239 	int dram_clock_change_latency_ns;
240 	bool optimized_watermark;
241 	int always_scale;
242 	bool disable_pplib_clock_request;
243 	bool disable_clock_gate;
244 	bool disable_dmcu;
245 	bool disable_psr;
246 	bool force_abm_enable;
247 	bool disable_stereo_support;
248 	bool vsr_support;
249 	bool performance_trace;
250 	bool az_endpoint_mute_only;
251 	bool always_use_regamma;
252 	bool p010_mpo_support;
253 	bool recovery_enabled;
254 	bool avoid_vbios_exec_table;
255 	bool scl_reset_length10;
256 	bool hdmi20_disable;
257 	bool skip_detection_link_training;
258 	unsigned int force_odm_combine; //bit vector based on otg inst
259 	unsigned int force_fclk_khz;
260 };
261 
262 struct dc_debug_data {
263 	uint32_t ltFailCount;
264 	uint32_t i2cErrorCount;
265 	uint32_t auxErrorCount;
266 };
267 
268 struct dc_state;
269 struct resource_pool;
270 struct dce_hwseq;
271 struct dc {
272 	struct dc_versions versions;
273 	struct dc_caps caps;
274 	struct dc_cap_funcs cap_funcs;
275 	struct dc_config config;
276 	struct dc_debug_options debug;
277 	struct dc_context *ctx;
278 
279 	uint8_t link_count;
280 	struct dc_link *links[MAX_PIPES * 2];
281 
282 	struct dc_state *current_state;
283 	struct resource_pool *res_pool;
284 
285 	/* Display Engine Clock levels */
286 	struct dm_pp_clock_levels sclk_lvls;
287 
288 	/* Inputs into BW and WM calculations. */
289 	struct bw_calcs_dceip *bw_dceip;
290 	struct bw_calcs_vbios *bw_vbios;
291 #ifdef CONFIG_DRM_AMD_DC_DCN1_0
292 	struct dcn_soc_bounding_box *dcn_soc;
293 	struct dcn_ip_params *dcn_ip;
294 	struct display_mode_lib dml;
295 #endif
296 
297 	/* HW functions */
298 	struct hw_sequencer_funcs hwss;
299 	struct dce_hwseq *hwseq;
300 
301 	bool optimized_required;
302 
303 	/* FBC compressor */
304 	struct compressor *fbc_compressor;
305 
306 	struct dc_debug_data debug_data;
307 
308 	const char *build_id;
309 };
310 
311 enum frame_buffer_mode {
312 	FRAME_BUFFER_MODE_LOCAL_ONLY = 0,
313 	FRAME_BUFFER_MODE_ZFB_ONLY,
314 	FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL,
315 } ;
316 
317 struct dchub_init_data {
318 	int64_t zfb_phys_addr_base;
319 	int64_t zfb_mc_base_addr;
320 	uint64_t zfb_size_in_byte;
321 	enum frame_buffer_mode fb_mode;
322 	bool dchub_initialzied;
323 	bool dchub_info_valid;
324 };
325 
326 struct dc_init_data {
327 	struct hw_asic_id asic_id;
328 	void *driver; /* ctx */
329 	struct cgs_device *cgs_device;
330 
331 	int num_virtual_links;
332 	/*
333 	 * If 'vbios_override' not NULL, it will be called instead
334 	 * of the real VBIOS. Intended use is Diagnostics on FPGA.
335 	 */
336 	struct dc_bios *vbios_override;
337 	enum dce_environment dce_environment;
338 
339 	struct dc_config flags;
340 	uint32_t log_mask;
341 };
342 
343 struct dc_callback_init {
344 	uint8_t reserved;
345 };
346 
347 struct dc *dc_create(const struct dc_init_data *init_params);
348 void dc_init_callbacks(struct dc *dc,
349 		const struct dc_callback_init *init_params);
350 void dc_destroy(struct dc **dc);
351 
352 /*******************************************************************************
353  * Surface Interfaces
354  ******************************************************************************/
355 
356 enum {
357 	TRANSFER_FUNC_POINTS = 1025
358 };
359 
360 struct dc_hdr_static_metadata {
361 	/* display chromaticities and white point in units of 0.00001 */
362 	unsigned int chromaticity_green_x;
363 	unsigned int chromaticity_green_y;
364 	unsigned int chromaticity_blue_x;
365 	unsigned int chromaticity_blue_y;
366 	unsigned int chromaticity_red_x;
367 	unsigned int chromaticity_red_y;
368 	unsigned int chromaticity_white_point_x;
369 	unsigned int chromaticity_white_point_y;
370 
371 	uint32_t min_luminance;
372 	uint32_t max_luminance;
373 	uint32_t maximum_content_light_level;
374 	uint32_t maximum_frame_average_light_level;
375 };
376 
377 enum dc_transfer_func_type {
378 	TF_TYPE_PREDEFINED,
379 	TF_TYPE_DISTRIBUTED_POINTS,
380 	TF_TYPE_BYPASS,
381 	TF_TYPE_HWPWL
382 };
383 
384 struct dc_transfer_func_distributed_points {
385 	struct fixed31_32 red[TRANSFER_FUNC_POINTS];
386 	struct fixed31_32 green[TRANSFER_FUNC_POINTS];
387 	struct fixed31_32 blue[TRANSFER_FUNC_POINTS];
388 
389 	uint16_t end_exponent;
390 	uint16_t x_point_at_y1_red;
391 	uint16_t x_point_at_y1_green;
392 	uint16_t x_point_at_y1_blue;
393 };
394 
395 enum dc_transfer_func_predefined {
396 	TRANSFER_FUNCTION_SRGB,
397 	TRANSFER_FUNCTION_BT709,
398 	TRANSFER_FUNCTION_PQ,
399 	TRANSFER_FUNCTION_LINEAR,
400 	TRANSFER_FUNCTION_UNITY,
401 	TRANSFER_FUNCTION_HLG,
402 	TRANSFER_FUNCTION_HLG12,
403 	TRANSFER_FUNCTION_GAMMA22
404 };
405 
406 struct dc_transfer_func {
407 	struct kref refcount;
408 	enum dc_transfer_func_type type;
409 	enum dc_transfer_func_predefined tf;
410 	/* FP16 1.0 reference level in nits, default is 80 nits, only for PQ*/
411 	uint32_t sdr_ref_white_level;
412 	struct dc_context *ctx;
413 	union {
414 		struct pwl_params pwl;
415 		struct dc_transfer_func_distributed_points tf_pts;
416 	};
417 };
418 
419 /*
420  * This structure is filled in by dc_surface_get_status and contains
421  * the last requested address and the currently active address so the called
422  * can determine if there are any outstanding flips
423  */
424 struct dc_plane_status {
425 	struct dc_plane_address requested_address;
426 	struct dc_plane_address current_address;
427 	bool is_flip_pending;
428 	bool is_right_eye;
429 };
430 
431 union surface_update_flags {
432 
433 	struct {
434 		/* Medium updates */
435 		uint32_t dcc_change:1;
436 		uint32_t color_space_change:1;
437 		uint32_t horizontal_mirror_change:1;
438 		uint32_t per_pixel_alpha_change:1;
439 		uint32_t global_alpha_change:1;
440 		uint32_t rotation_change:1;
441 		uint32_t swizzle_change:1;
442 		uint32_t scaling_change:1;
443 		uint32_t position_change:1;
444 		uint32_t in_transfer_func_change:1;
445 		uint32_t input_csc_change:1;
446 		uint32_t coeff_reduction_change:1;
447 		uint32_t output_tf_change:1;
448 		uint32_t pixel_format_change:1;
449 		uint32_t plane_size_change:1;
450 
451 		/* Full updates */
452 		uint32_t new_plane:1;
453 		uint32_t bpp_change:1;
454 		uint32_t gamma_change:1;
455 		uint32_t bandwidth_change:1;
456 		uint32_t clock_change:1;
457 		uint32_t stereo_format_change:1;
458 		uint32_t full_update:1;
459 	} bits;
460 
461 	uint32_t raw;
462 };
463 
464 struct dc_plane_state {
465 	struct dc_plane_address address;
466 	struct dc_plane_flip_time time;
467 	struct scaling_taps scaling_quality;
468 	struct rect src_rect;
469 	struct rect dst_rect;
470 	struct rect clip_rect;
471 
472 	union plane_size plane_size;
473 	union dc_tiling_info tiling_info;
474 
475 	struct dc_plane_dcc_param dcc;
476 
477 	struct dc_gamma *gamma_correction;
478 	struct dc_transfer_func *in_transfer_func;
479 	struct dc_bias_and_scale *bias_and_scale;
480 	struct dc_csc_transform input_csc_color_matrix;
481 	struct fixed31_32 coeff_reduction_factor;
482 	uint32_t sdr_white_level;
483 
484 	// TODO: No longer used, remove
485 	struct dc_hdr_static_metadata hdr_static_ctx;
486 
487 	enum dc_color_space color_space;
488 
489 	enum surface_pixel_format format;
490 	enum dc_rotation_angle rotation;
491 	enum plane_stereo_format stereo_format;
492 
493 	bool is_tiling_rotated;
494 	bool per_pixel_alpha;
495 	bool global_alpha;
496 	int  global_alpha_value;
497 	bool visible;
498 	bool flip_immediate;
499 	bool horizontal_mirror;
500 
501 	union surface_update_flags update_flags;
502 	/* private to DC core */
503 	struct dc_plane_status status;
504 	struct dc_context *ctx;
505 
506 	/* private to dc_surface.c */
507 	enum dc_irq_source irq_source;
508 	struct kref refcount;
509 };
510 
511 struct dc_plane_info {
512 	union plane_size plane_size;
513 	union dc_tiling_info tiling_info;
514 	struct dc_plane_dcc_param dcc;
515 	enum surface_pixel_format format;
516 	enum dc_rotation_angle rotation;
517 	enum plane_stereo_format stereo_format;
518 	enum dc_color_space color_space;
519 	unsigned int sdr_white_level;
520 	bool horizontal_mirror;
521 	bool visible;
522 	bool per_pixel_alpha;
523 	bool global_alpha;
524 	int  global_alpha_value;
525 	bool input_csc_enabled;
526 };
527 
528 struct dc_scaling_info {
529 	struct rect src_rect;
530 	struct rect dst_rect;
531 	struct rect clip_rect;
532 	struct scaling_taps scaling_quality;
533 };
534 
535 struct dc_surface_update {
536 	struct dc_plane_state *surface;
537 
538 	/* isr safe update parameters.  null means no updates */
539 	const struct dc_flip_addrs *flip_addr;
540 	const struct dc_plane_info *plane_info;
541 	const struct dc_scaling_info *scaling_info;
542 
543 	/* following updates require alloc/sleep/spin that is not isr safe,
544 	 * null means no updates
545 	 */
546 	const struct dc_gamma *gamma;
547 	const struct dc_transfer_func *in_transfer_func;
548 
549 	const struct dc_csc_transform *input_csc_color_matrix;
550 	const struct fixed31_32 *coeff_reduction_factor;
551 };
552 
553 /*
554  * Create a new surface with default parameters;
555  */
556 struct dc_plane_state *dc_create_plane_state(struct dc *dc);
557 const struct dc_plane_status *dc_plane_get_status(
558 		const struct dc_plane_state *plane_state);
559 
560 void dc_plane_state_retain(struct dc_plane_state *plane_state);
561 void dc_plane_state_release(struct dc_plane_state *plane_state);
562 
563 void dc_gamma_retain(struct dc_gamma *dc_gamma);
564 void dc_gamma_release(struct dc_gamma **dc_gamma);
565 struct dc_gamma *dc_create_gamma(void);
566 
567 void dc_transfer_func_retain(struct dc_transfer_func *dc_tf);
568 void dc_transfer_func_release(struct dc_transfer_func *dc_tf);
569 struct dc_transfer_func *dc_create_transfer_func(void);
570 
571 /*
572  * This structure holds a surface address.  There could be multiple addresses
573  * in cases such as Stereo 3D, Planar YUV, etc.  Other per-flip attributes such
574  * as frame durations and DCC format can also be set.
575  */
576 struct dc_flip_addrs {
577 	struct dc_plane_address address;
578 	unsigned int flip_timestamp_in_us;
579 	bool flip_immediate;
580 	/* TODO: add flip duration for FreeSync */
581 };
582 
583 bool dc_post_update_surfaces_to_stream(
584 		struct dc *dc);
585 
586 #include "dc_stream.h"
587 
588 /*
589  * Structure to store surface/stream associations for validation
590  */
591 struct dc_validation_set {
592 	struct dc_stream_state *stream;
593 	struct dc_plane_state *plane_states[MAX_SURFACES];
594 	uint8_t plane_count;
595 };
596 
597 bool dc_validate_seamless_boot_timing(struct dc *dc,
598 				const struct dc_sink *sink,
599 				struct dc_crtc_timing *crtc_timing);
600 
601 enum dc_status dc_validate_plane(struct dc *dc, const struct dc_plane_state *plane_state);
602 
603 void get_clock_requirements_for_state(struct dc_state *state, struct AsicStateEx *info);
604 
605 enum dc_status dc_validate_global_state(
606 		struct dc *dc,
607 		struct dc_state *new_ctx);
608 
609 
610 void dc_resource_state_construct(
611 		const struct dc *dc,
612 		struct dc_state *dst_ctx);
613 
614 void dc_resource_state_copy_construct(
615 		const struct dc_state *src_ctx,
616 		struct dc_state *dst_ctx);
617 
618 void dc_resource_state_copy_construct_current(
619 		const struct dc *dc,
620 		struct dc_state *dst_ctx);
621 
622 void dc_resource_state_destruct(struct dc_state *context);
623 
624 /*
625  * TODO update to make it about validation sets
626  * Set up streams and links associated to drive sinks
627  * The streams parameter is an absolute set of all active streams.
628  *
629  * After this call:
630  *   Phy, Encoder, Timing Generator are programmed and enabled.
631  *   New streams are enabled with blank stream; no memory read.
632  */
633 bool dc_commit_state(struct dc *dc, struct dc_state *context);
634 
635 
636 struct dc_state *dc_create_state(void);
637 void dc_retain_state(struct dc_state *context);
638 void dc_release_state(struct dc_state *context);
639 
640 /*******************************************************************************
641  * Link Interfaces
642  ******************************************************************************/
643 
644 struct dpcd_caps {
645 	union dpcd_rev dpcd_rev;
646 	union max_lane_count max_ln_count;
647 	union max_down_spread max_down_spread;
648 
649 	/* dongle type (DP converter, CV smart dongle) */
650 	enum display_dongle_type dongle_type;
651 	/* Dongle's downstream count. */
652 	union sink_count sink_count;
653 	/* If dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER,
654 	indicates 'Frame Sequential-to-lllFrame Pack' conversion capability.*/
655 	struct dc_dongle_caps dongle_caps;
656 
657 	uint32_t sink_dev_id;
658 	int8_t sink_dev_id_str[6];
659 	int8_t sink_hw_revision;
660 	int8_t sink_fw_revision[2];
661 
662 	uint32_t branch_dev_id;
663 	int8_t branch_dev_name[6];
664 	int8_t branch_hw_revision;
665 	int8_t branch_fw_revision[2];
666 	uint8_t link_rate_set;
667 
668 	bool allow_invalid_MSA_timing_param;
669 	bool panel_mode_edp;
670 	bool dpcd_display_control_capable;
671 };
672 
673 #include "dc_link.h"
674 
675 /*******************************************************************************
676  * Sink Interfaces - A sink corresponds to a display output device
677  ******************************************************************************/
678 
679 struct dc_container_id {
680 	// 128bit GUID in binary form
681 	unsigned char  guid[16];
682 	// 8 byte port ID -> ELD.PortID
683 	unsigned int   portId[2];
684 	// 128bit GUID in binary formufacturer name -> ELD.ManufacturerName
685 	unsigned short manufacturerName;
686 	// 2 byte product code -> ELD.ProductCode
687 	unsigned short productCode;
688 };
689 
690 
691 
692 /*
693  * The sink structure contains EDID and other display device properties
694  */
695 struct dc_sink {
696 	enum signal_type sink_signal;
697 	struct dc_edid dc_edid; /* raw edid */
698 	struct dc_edid_caps edid_caps; /* parse display caps */
699 	struct dc_container_id *dc_container_id;
700 	uint32_t dongle_max_pix_clk;
701 	void *priv;
702 	struct stereo_3d_features features_3d[TIMING_3D_FORMAT_MAX];
703 	bool converter_disable_audio;
704 
705 	/* private to DC core */
706 	struct dc_link *link;
707 	struct dc_context *ctx;
708 
709 	uint32_t sink_id;
710 
711 	/* private to dc_sink.c */
712 	// refcount must be the last member in dc_sink, since we want the
713 	// sink structure to be logically cloneable up to (but not including)
714 	// refcount
715 	struct kref refcount;
716 };
717 
718 void dc_sink_retain(struct dc_sink *sink);
719 void dc_sink_release(struct dc_sink *sink);
720 
721 struct dc_sink_init_data {
722 	enum signal_type sink_signal;
723 	struct dc_link *link;
724 	uint32_t dongle_max_pix_clk;
725 	bool converter_disable_audio;
726 };
727 
728 struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params);
729 
730 /* Newer interfaces  */
731 struct dc_cursor {
732 	struct dc_plane_address address;
733 	struct dc_cursor_attributes attributes;
734 };
735 
736 
737 /*******************************************************************************
738  * Interrupt interfaces
739  ******************************************************************************/
740 enum dc_irq_source dc_interrupt_to_irq_source(
741 		struct dc *dc,
742 		uint32_t src_id,
743 		uint32_t ext_id);
744 bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable);
745 void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src);
746 enum dc_irq_source dc_get_hpd_irq_source_at_index(
747 		struct dc *dc, uint32_t link_index);
748 
749 /*******************************************************************************
750  * Power Interfaces
751  ******************************************************************************/
752 
753 void dc_set_power_state(
754 		struct dc *dc,
755 		enum dc_acpi_cm_power_state power_state);
756 void dc_resume(struct dc *dc);
757 unsigned int dc_get_current_backlight_pwm(struct dc *dc);
758 unsigned int dc_get_target_backlight_pwm(struct dc *dc);
759 
760 bool dc_is_dmcu_initialized(struct dc *dc);
761 
762 #endif /* DC_INTERFACE_H_ */
763