Line data Source code
1 : /*
2 : * Copyright (c) 2016 Intel Corporation
3 : *
4 : * Permission to use, copy, modify, distribute, and sell this software and its
5 : * documentation for any purpose is hereby granted without fee, provided that
6 : * the above copyright notice appear in all copies and that both that copyright
7 : * notice and this permission notice appear in supporting documentation, and
8 : * that the name of the copyright holders not be used in advertising or
9 : * publicity pertaining to distribution of the software without specific,
10 : * written prior permission. The copyright holders make no representations
11 : * about the suitability of this software for any purpose. It is provided "as
12 : * is" without express or implied warranty.
13 : *
14 : * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 : * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 : * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 : * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 : * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 : * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
20 : * OF THIS SOFTWARE.
21 : */
22 :
23 : #ifndef __DRM_CONNECTOR_H__
24 : #define __DRM_CONNECTOR_H__
25 :
26 : #include <linux/list.h>
27 : #include <linux/llist.h>
28 : #include <linux/ctype.h>
29 : #include <linux/hdmi.h>
30 : #include <linux/notifier.h>
31 : #include <drm/drm_mode_object.h>
32 : #include <drm/drm_util.h>
33 :
34 : #include <uapi/drm/drm_mode.h>
35 :
36 : struct drm_connector_helper_funcs;
37 : struct drm_modeset_acquire_ctx;
38 : struct drm_device;
39 : struct drm_crtc;
40 : struct drm_encoder;
41 : struct drm_panel;
42 : struct drm_property;
43 : struct drm_property_blob;
44 : struct drm_printer;
45 : struct drm_privacy_screen;
46 : struct edid;
47 : struct i2c_adapter;
48 :
49 : enum drm_connector_force {
50 : DRM_FORCE_UNSPECIFIED,
51 : DRM_FORCE_OFF,
52 : DRM_FORCE_ON, /* force on analog part normally */
53 : DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
54 : };
55 :
56 : /**
57 : * enum drm_connector_status - status for a &drm_connector
58 : *
59 : * This enum is used to track the connector status. There are no separate
60 : * #defines for the uapi!
61 : */
62 : enum drm_connector_status {
63 : /**
64 : * @connector_status_connected: The connector is definitely connected to
65 : * a sink device, and can be enabled.
66 : */
67 : connector_status_connected = 1,
68 : /**
69 : * @connector_status_disconnected: The connector isn't connected to a
70 : * sink device which can be autodetect. For digital outputs like DP or
71 : * HDMI (which can be realiable probed) this means there's really
72 : * nothing there. It is driver-dependent whether a connector with this
73 : * status can be lit up or not.
74 : */
75 : connector_status_disconnected = 2,
76 : /**
77 : * @connector_status_unknown: The connector's status could not be
78 : * reliably detected. This happens when probing would either cause
79 : * flicker (like load-detection when the connector is in use), or when a
80 : * hardware resource isn't available (like when load-detection needs a
81 : * free CRTC). It should be possible to light up the connector with one
82 : * of the listed fallback modes. For default configuration userspace
83 : * should only try to light up connectors with unknown status when
84 : * there's not connector with @connector_status_connected.
85 : */
86 : connector_status_unknown = 3,
87 : };
88 :
89 : /**
90 : * enum drm_connector_registration_state - userspace registration status for
91 : * a &drm_connector
92 : *
93 : * This enum is used to track the status of initializing a connector and
94 : * registering it with userspace, so that DRM can prevent bogus modesets on
95 : * connectors that no longer exist.
96 : */
97 : enum drm_connector_registration_state {
98 : /**
99 : * @DRM_CONNECTOR_INITIALIZING: The connector has just been created,
100 : * but has yet to be exposed to userspace. There should be no
101 : * additional restrictions to how the state of this connector may be
102 : * modified.
103 : */
104 : DRM_CONNECTOR_INITIALIZING = 0,
105 :
106 : /**
107 : * @DRM_CONNECTOR_REGISTERED: The connector has been fully initialized
108 : * and registered with sysfs, as such it has been exposed to
109 : * userspace. There should be no additional restrictions to how the
110 : * state of this connector may be modified.
111 : */
112 : DRM_CONNECTOR_REGISTERED = 1,
113 :
114 : /**
115 : * @DRM_CONNECTOR_UNREGISTERED: The connector has either been exposed
116 : * to userspace and has since been unregistered and removed from
117 : * userspace, or the connector was unregistered before it had a chance
118 : * to be exposed to userspace (e.g. still in the
119 : * @DRM_CONNECTOR_INITIALIZING state). When a connector is
120 : * unregistered, there are additional restrictions to how its state
121 : * may be modified:
122 : *
123 : * - An unregistered connector may only have its DPMS changed from
124 : * On->Off. Once DPMS is changed to Off, it may not be switched back
125 : * to On.
126 : * - Modesets are not allowed on unregistered connectors, unless they
127 : * would result in disabling its assigned CRTCs. This means
128 : * disabling a CRTC on an unregistered connector is OK, but enabling
129 : * one is not.
130 : * - Removing a CRTC from an unregistered connector is OK, but new
131 : * CRTCs may never be assigned to an unregistered connector.
132 : */
133 : DRM_CONNECTOR_UNREGISTERED = 2,
134 : };
135 :
136 : enum subpixel_order {
137 : SubPixelUnknown = 0,
138 : SubPixelHorizontalRGB,
139 : SubPixelHorizontalBGR,
140 : SubPixelVerticalRGB,
141 : SubPixelVerticalBGR,
142 : SubPixelNone,
143 :
144 : };
145 :
146 : /**
147 : * enum drm_connector_tv_mode - Analog TV output mode
148 : *
149 : * This enum is used to indicate the TV output mode used on an analog TV
150 : * connector.
151 : *
152 : * WARNING: The values of this enum is uABI since they're exposed in the
153 : * "TV mode" connector property.
154 : */
155 : enum drm_connector_tv_mode {
156 : /**
157 : * @DRM_MODE_TV_MODE_NTSC: CCIR System M (aka 525-lines)
158 : * together with the NTSC Color Encoding.
159 : */
160 : DRM_MODE_TV_MODE_NTSC,
161 :
162 : /**
163 : * @DRM_MODE_TV_MODE_NTSC_443: Variant of
164 : * @DRM_MODE_TV_MODE_NTSC. Uses a color subcarrier frequency
165 : * of 4.43 MHz.
166 : */
167 : DRM_MODE_TV_MODE_NTSC_443,
168 :
169 : /**
170 : * @DRM_MODE_TV_MODE_NTSC_J: Variant of @DRM_MODE_TV_MODE_NTSC
171 : * used in Japan. Uses a black level equals to the blanking
172 : * level.
173 : */
174 : DRM_MODE_TV_MODE_NTSC_J,
175 :
176 : /**
177 : * @DRM_MODE_TV_MODE_PAL: CCIR System B together with the PAL
178 : * color system.
179 : */
180 : DRM_MODE_TV_MODE_PAL,
181 :
182 : /**
183 : * @DRM_MODE_TV_MODE_PAL_M: CCIR System M (aka 525-lines)
184 : * together with the PAL color encoding
185 : */
186 : DRM_MODE_TV_MODE_PAL_M,
187 :
188 : /**
189 : * @DRM_MODE_TV_MODE_PAL_N: CCIR System N together with the PAL
190 : * color encoding. It uses 625 lines, but has a color subcarrier
191 : * frequency of 3.58MHz, the SECAM color space, and narrower
192 : * channels compared to most of the other PAL variants.
193 : */
194 : DRM_MODE_TV_MODE_PAL_N,
195 :
196 : /**
197 : * @DRM_MODE_TV_MODE_SECAM: CCIR System B together with the
198 : * SECAM color system.
199 : */
200 : DRM_MODE_TV_MODE_SECAM,
201 :
202 : DRM_MODE_TV_MODE_MAX,
203 : };
204 :
205 : /**
206 : * struct drm_scrambling: sink's scrambling support.
207 : */
208 : struct drm_scrambling {
209 : /**
210 : * @supported: scrambling supported for rates > 340 Mhz.
211 : */
212 : bool supported;
213 : /**
214 : * @low_rates: scrambling supported for rates <= 340 Mhz.
215 : */
216 : bool low_rates;
217 : };
218 :
219 : /*
220 : * struct drm_scdc - Information about scdc capabilities of a HDMI 2.0 sink
221 : *
222 : * Provides SCDC register support and capabilities related information on a
223 : * HDMI 2.0 sink. In case of a HDMI 1.4 sink, all parameter must be 0.
224 : */
225 : struct drm_scdc {
226 : /**
227 : * @supported: status control & data channel present.
228 : */
229 : bool supported;
230 : /**
231 : * @read_request: sink is capable of generating scdc read request.
232 : */
233 : bool read_request;
234 : /**
235 : * @scrambling: sink's scrambling capabilities
236 : */
237 : struct drm_scrambling scrambling;
238 : };
239 :
240 : /**
241 : * struct drm_hdmi_dsc_cap - DSC capabilities of HDMI sink
242 : *
243 : * Describes the DSC support provided by HDMI 2.1 sink.
244 : * The information is fetched fom additional HFVSDB blocks defined
245 : * for HDMI 2.1.
246 : */
247 : struct drm_hdmi_dsc_cap {
248 : /** @v_1p2: flag for dsc1.2 version support by sink */
249 : bool v_1p2;
250 :
251 : /** @native_420: Does sink support DSC with 4:2:0 compression */
252 : bool native_420;
253 :
254 : /**
255 : * @all_bpp: Does sink support all bpp with 4:4:4: or 4:2:2
256 : * compressed formats
257 : */
258 : bool all_bpp;
259 :
260 : /**
261 : * @bpc_supported: compressed bpc supported by sink : 10, 12 or 16 bpc
262 : */
263 : u8 bpc_supported;
264 :
265 : /** @max_slices: maximum number of Horizontal slices supported by */
266 : u8 max_slices;
267 :
268 : /** @clk_per_slice : max pixel clock in MHz supported per slice */
269 : int clk_per_slice;
270 :
271 : /** @max_lanes : dsc max lanes supported for Fixed rate Link training */
272 : u8 max_lanes;
273 :
274 : /** @max_frl_rate_per_lane : maximum frl rate with DSC per lane */
275 : u8 max_frl_rate_per_lane;
276 :
277 : /** @total_chunk_kbytes: max size of chunks in KBs supported per line*/
278 : u8 total_chunk_kbytes;
279 : };
280 :
281 : /**
282 : * struct drm_hdmi_info - runtime information about the connected HDMI sink
283 : *
284 : * Describes if a given display supports advanced HDMI 2.0 features.
285 : * This information is available in CEA-861-F extension blocks (like HF-VSDB).
286 : */
287 : struct drm_hdmi_info {
288 : /** @scdc: sink's scdc support and capabilities */
289 : struct drm_scdc scdc;
290 :
291 : /**
292 : * @y420_vdb_modes: bitmap of modes which can support ycbcr420
293 : * output only (not normal RGB/YCBCR444/422 outputs). The max VIC
294 : * defined by the CEA-861-G spec is 219, so the size is 256 bits to map
295 : * up to 256 VICs.
296 : */
297 : unsigned long y420_vdb_modes[BITS_TO_LONGS(256)];
298 :
299 : /**
300 : * @y420_cmdb_modes: bitmap of modes which can support ycbcr420
301 : * output also, along with normal HDMI outputs. The max VIC defined by
302 : * the CEA-861-G spec is 219, so the size is 256 bits to map up to 256
303 : * VICs.
304 : */
305 : unsigned long y420_cmdb_modes[BITS_TO_LONGS(256)];
306 :
307 : /** @y420_dc_modes: bitmap of deep color support index */
308 : u8 y420_dc_modes;
309 :
310 : /** @max_frl_rate_per_lane: support fixed rate link */
311 : u8 max_frl_rate_per_lane;
312 :
313 : /** @max_lanes: supported by sink */
314 : u8 max_lanes;
315 :
316 : /** @dsc_cap: DSC capabilities of the sink */
317 : struct drm_hdmi_dsc_cap dsc_cap;
318 : };
319 :
320 : /**
321 : * enum drm_link_status - connector's link_status property value
322 : *
323 : * This enum is used as the connector's link status property value.
324 : * It is set to the values defined in uapi.
325 : *
326 : * @DRM_LINK_STATUS_GOOD: DP Link is Good as a result of successful
327 : * link training
328 : * @DRM_LINK_STATUS_BAD: DP Link is BAD as a result of link training
329 : * failure
330 : */
331 : enum drm_link_status {
332 : DRM_LINK_STATUS_GOOD = DRM_MODE_LINK_STATUS_GOOD,
333 : DRM_LINK_STATUS_BAD = DRM_MODE_LINK_STATUS_BAD,
334 : };
335 :
336 : /**
337 : * enum drm_panel_orientation - panel_orientation info for &drm_display_info
338 : *
339 : * This enum is used to track the (LCD) panel orientation. There are no
340 : * separate #defines for the uapi!
341 : *
342 : * @DRM_MODE_PANEL_ORIENTATION_UNKNOWN: The drm driver has not provided any
343 : * panel orientation information (normal
344 : * for non panels) in this case the "panel
345 : * orientation" connector prop will not be
346 : * attached.
347 : * @DRM_MODE_PANEL_ORIENTATION_NORMAL: The top side of the panel matches the
348 : * top side of the device's casing.
349 : * @DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: The top side of the panel matches the
350 : * bottom side of the device's casing, iow
351 : * the panel is mounted upside-down.
352 : * @DRM_MODE_PANEL_ORIENTATION_LEFT_UP: The left side of the panel matches the
353 : * top side of the device's casing.
354 : * @DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: The right side of the panel matches the
355 : * top side of the device's casing.
356 : */
357 : enum drm_panel_orientation {
358 : DRM_MODE_PANEL_ORIENTATION_UNKNOWN = -1,
359 : DRM_MODE_PANEL_ORIENTATION_NORMAL = 0,
360 : DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP,
361 : DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
362 : DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
363 : };
364 :
365 : /**
366 : * struct drm_monitor_range_info - Panel's Monitor range in EDID for
367 : * &drm_display_info
368 : *
369 : * This struct is used to store a frequency range supported by panel
370 : * as parsed from EDID's detailed monitor range descriptor block.
371 : *
372 : * @min_vfreq: This is the min supported refresh rate in Hz from
373 : * EDID's detailed monitor range.
374 : * @max_vfreq: This is the max supported refresh rate in Hz from
375 : * EDID's detailed monitor range
376 : */
377 : struct drm_monitor_range_info {
378 : u16 min_vfreq;
379 : u16 max_vfreq;
380 : };
381 :
382 : /**
383 : * struct drm_luminance_range_info - Panel's luminance range for
384 : * &drm_display_info. Calculated using data in EDID
385 : *
386 : * This struct is used to store a luminance range supported by panel
387 : * as calculated using data from EDID's static hdr metadata.
388 : *
389 : * @min_luminance: This is the min supported luminance value
390 : *
391 : * @max_luminance: This is the max supported luminance value
392 : */
393 : struct drm_luminance_range_info {
394 : u32 min_luminance;
395 : u32 max_luminance;
396 : };
397 :
398 : /**
399 : * enum drm_privacy_screen_status - privacy screen status
400 : *
401 : * This enum is used to track and control the state of the integrated privacy
402 : * screen present on some display panels, via the "privacy-screen sw-state"
403 : * and "privacy-screen hw-state" properties. Note the _LOCKED enum values
404 : * are only valid for the "privacy-screen hw-state" property.
405 : *
406 : * @PRIVACY_SCREEN_DISABLED:
407 : * The privacy-screen on the panel is disabled
408 : * @PRIVACY_SCREEN_ENABLED:
409 : * The privacy-screen on the panel is enabled
410 : * @PRIVACY_SCREEN_DISABLED_LOCKED:
411 : * The privacy-screen on the panel is disabled and locked (cannot be changed)
412 : * @PRIVACY_SCREEN_ENABLED_LOCKED:
413 : * The privacy-screen on the panel is enabled and locked (cannot be changed)
414 : */
415 : enum drm_privacy_screen_status {
416 : PRIVACY_SCREEN_DISABLED = 0,
417 : PRIVACY_SCREEN_ENABLED,
418 : PRIVACY_SCREEN_DISABLED_LOCKED,
419 : PRIVACY_SCREEN_ENABLED_LOCKED,
420 : };
421 :
422 : /*
423 : * This is a consolidated colorimetry list supported by HDMI and
424 : * DP protocol standard. The respective connectors will register
425 : * a property with the subset of this list (supported by that
426 : * respective protocol). Userspace will set the colorspace through
427 : * a colorspace property which will be created and exposed to
428 : * userspace.
429 : */
430 :
431 : /* For Default case, driver will set the colorspace */
432 : #define DRM_MODE_COLORIMETRY_DEFAULT 0
433 : /* CEA 861 Normal Colorimetry options */
434 : #define DRM_MODE_COLORIMETRY_NO_DATA 0
435 : #define DRM_MODE_COLORIMETRY_SMPTE_170M_YCC 1
436 : #define DRM_MODE_COLORIMETRY_BT709_YCC 2
437 : /* CEA 861 Extended Colorimetry Options */
438 : #define DRM_MODE_COLORIMETRY_XVYCC_601 3
439 : #define DRM_MODE_COLORIMETRY_XVYCC_709 4
440 : #define DRM_MODE_COLORIMETRY_SYCC_601 5
441 : #define DRM_MODE_COLORIMETRY_OPYCC_601 6
442 : #define DRM_MODE_COLORIMETRY_OPRGB 7
443 : #define DRM_MODE_COLORIMETRY_BT2020_CYCC 8
444 : #define DRM_MODE_COLORIMETRY_BT2020_RGB 9
445 : #define DRM_MODE_COLORIMETRY_BT2020_YCC 10
446 : /* Additional Colorimetry extension added as part of CTA 861.G */
447 : #define DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65 11
448 : #define DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER 12
449 : /* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */
450 : #define DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED 13
451 : #define DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT 14
452 : #define DRM_MODE_COLORIMETRY_BT601_YCC 15
453 :
454 : /**
455 : * enum drm_bus_flags - bus_flags info for &drm_display_info
456 : *
457 : * This enum defines signal polarities and clock edge information for signals on
458 : * a bus as bitmask flags.
459 : *
460 : * The clock edge information is conveyed by two sets of symbols,
461 : * DRM_BUS_FLAGS_*_DRIVE_\* and DRM_BUS_FLAGS_*_SAMPLE_\*. When this enum is
462 : * used to describe a bus from the point of view of the transmitter, the
463 : * \*_DRIVE_\* flags should be used. When used from the point of view of the
464 : * receiver, the \*_SAMPLE_\* flags should be used. The \*_DRIVE_\* and
465 : * \*_SAMPLE_\* flags alias each other, with the \*_SAMPLE_POSEDGE and
466 : * \*_SAMPLE_NEGEDGE flags being equal to \*_DRIVE_NEGEDGE and \*_DRIVE_POSEDGE
467 : * respectively. This simplifies code as signals are usually sampled on the
468 : * opposite edge of the driving edge. Transmitters and receivers may however
469 : * need to take other signal timings into account to convert between driving
470 : * and sample edges.
471 : */
472 : enum drm_bus_flags {
473 : /**
474 : * @DRM_BUS_FLAG_DE_LOW:
475 : *
476 : * The Data Enable signal is active low
477 : */
478 : DRM_BUS_FLAG_DE_LOW = BIT(0),
479 :
480 : /**
481 : * @DRM_BUS_FLAG_DE_HIGH:
482 : *
483 : * The Data Enable signal is active high
484 : */
485 : DRM_BUS_FLAG_DE_HIGH = BIT(1),
486 :
487 : /**
488 : * @DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE:
489 : *
490 : * Data is driven on the rising edge of the pixel clock
491 : */
492 : DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE = BIT(2),
493 :
494 : /**
495 : * @DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE:
496 : *
497 : * Data is driven on the falling edge of the pixel clock
498 : */
499 : DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE = BIT(3),
500 :
501 : /**
502 : * @DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE:
503 : *
504 : * Data is sampled on the rising edge of the pixel clock
505 : */
506 : DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
507 :
508 : /**
509 : * @DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE:
510 : *
511 : * Data is sampled on the falling edge of the pixel clock
512 : */
513 : DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
514 :
515 : /**
516 : * @DRM_BUS_FLAG_DATA_MSB_TO_LSB:
517 : *
518 : * Data is transmitted MSB to LSB on the bus
519 : */
520 : DRM_BUS_FLAG_DATA_MSB_TO_LSB = BIT(4),
521 :
522 : /**
523 : * @DRM_BUS_FLAG_DATA_LSB_TO_MSB:
524 : *
525 : * Data is transmitted LSB to MSB on the bus
526 : */
527 : DRM_BUS_FLAG_DATA_LSB_TO_MSB = BIT(5),
528 :
529 : /**
530 : * @DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE:
531 : *
532 : * Sync signals are driven on the rising edge of the pixel clock
533 : */
534 : DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE = BIT(6),
535 :
536 : /**
537 : * @DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE:
538 : *
539 : * Sync signals are driven on the falling edge of the pixel clock
540 : */
541 : DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE = BIT(7),
542 :
543 : /**
544 : * @DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE:
545 : *
546 : * Sync signals are sampled on the rising edge of the pixel clock
547 : */
548 : DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE = DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE,
549 :
550 : /**
551 : * @DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE:
552 : *
553 : * Sync signals are sampled on the falling edge of the pixel clock
554 : */
555 : DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE = DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE,
556 :
557 : /**
558 : * @DRM_BUS_FLAG_SHARP_SIGNALS:
559 : *
560 : * Set if the Sharp-specific signals (SPL, CLS, PS, REV) must be used
561 : */
562 : DRM_BUS_FLAG_SHARP_SIGNALS = BIT(8),
563 : };
564 :
565 : /**
566 : * struct drm_display_info - runtime data about the connected sink
567 : *
568 : * Describes a given display (e.g. CRT or flat panel) and its limitations. For
569 : * fixed display sinks like built-in panels there's not much difference between
570 : * this and &struct drm_connector. But for sinks with a real cable this
571 : * structure is meant to describe all the things at the other end of the cable.
572 : *
573 : * For sinks which provide an EDID this can be filled out by calling
574 : * drm_add_edid_modes().
575 : */
576 : struct drm_display_info {
577 : /**
578 : * @width_mm: Physical width in mm.
579 : */
580 : unsigned int width_mm;
581 :
582 : /**
583 : * @height_mm: Physical height in mm.
584 : */
585 : unsigned int height_mm;
586 :
587 : /**
588 : * @bpc: Maximum bits per color channel. Used by HDMI and DP outputs.
589 : */
590 : unsigned int bpc;
591 :
592 : /**
593 : * @subpixel_order: Subpixel order of LCD panels.
594 : */
595 : enum subpixel_order subpixel_order;
596 :
597 : #define DRM_COLOR_FORMAT_RGB444 (1<<0)
598 : #define DRM_COLOR_FORMAT_YCBCR444 (1<<1)
599 : #define DRM_COLOR_FORMAT_YCBCR422 (1<<2)
600 : #define DRM_COLOR_FORMAT_YCBCR420 (1<<3)
601 :
602 : /**
603 : * @panel_orientation: Read only connector property for built-in panels,
604 : * indicating the orientation of the panel vs the device's casing.
605 : * drm_connector_init() sets this to DRM_MODE_PANEL_ORIENTATION_UNKNOWN.
606 : * When not UNKNOWN this gets used by the drm_fb_helpers to rotate the
607 : * fb to compensate and gets exported as prop to userspace.
608 : */
609 : int panel_orientation;
610 :
611 : /**
612 : * @color_formats: HDMI Color formats, selects between RGB and YCrCb
613 : * modes. Used DRM_COLOR_FORMAT\_ defines, which are _not_ the same ones
614 : * as used to describe the pixel format in framebuffers, and also don't
615 : * match the formats in @bus_formats which are shared with v4l.
616 : */
617 : u32 color_formats;
618 :
619 : /**
620 : * @bus_formats: Pixel data format on the wire, somewhat redundant with
621 : * @color_formats. Array of size @num_bus_formats encoded using
622 : * MEDIA_BUS_FMT\_ defines shared with v4l and media drivers.
623 : */
624 : const u32 *bus_formats;
625 : /**
626 : * @num_bus_formats: Size of @bus_formats array.
627 : */
628 : unsigned int num_bus_formats;
629 :
630 : /**
631 : * @bus_flags: Additional information (like pixel signal polarity) for
632 : * the pixel data on the bus, using &enum drm_bus_flags values
633 : * DRM_BUS_FLAGS\_.
634 : */
635 : u32 bus_flags;
636 :
637 : /**
638 : * @max_tmds_clock: Maximum TMDS clock rate supported by the
639 : * sink in kHz. 0 means undefined.
640 : */
641 : int max_tmds_clock;
642 :
643 : /**
644 : * @dvi_dual: Dual-link DVI sink?
645 : */
646 : bool dvi_dual;
647 :
648 : /**
649 : * @is_hdmi: True if the sink is an HDMI device.
650 : *
651 : * This field shall be used instead of calling
652 : * drm_detect_hdmi_monitor() when possible.
653 : */
654 : bool is_hdmi;
655 :
656 : /**
657 : * @has_hdmi_infoframe: Does the sink support the HDMI infoframe?
658 : */
659 : bool has_hdmi_infoframe;
660 :
661 : /**
662 : * @rgb_quant_range_selectable: Does the sink support selecting
663 : * the RGB quantization range?
664 : */
665 : bool rgb_quant_range_selectable;
666 :
667 : /**
668 : * @edid_hdmi_rgb444_dc_modes: Mask of supported hdmi deep color modes
669 : * in RGB 4:4:4. Even more stuff redundant with @bus_formats.
670 : */
671 : u8 edid_hdmi_rgb444_dc_modes;
672 :
673 : /**
674 : * @edid_hdmi_ycbcr444_dc_modes: Mask of supported hdmi deep color
675 : * modes in YCbCr 4:4:4. Even more stuff redundant with @bus_formats.
676 : */
677 : u8 edid_hdmi_ycbcr444_dc_modes;
678 :
679 : /**
680 : * @cea_rev: CEA revision of the HDMI sink.
681 : */
682 : u8 cea_rev;
683 :
684 : /**
685 : * @hdmi: advance features of a HDMI sink.
686 : */
687 : struct drm_hdmi_info hdmi;
688 :
689 : /**
690 : * @non_desktop: Non desktop display (HMD).
691 : */
692 : bool non_desktop;
693 :
694 : /**
695 : * @monitor_range: Frequency range supported by monitor range descriptor
696 : */
697 : struct drm_monitor_range_info monitor_range;
698 :
699 : /**
700 : * @luminance_range: Luminance range supported by panel
701 : */
702 : struct drm_luminance_range_info luminance_range;
703 :
704 : /**
705 : * @mso_stream_count: eDP Multi-SST Operation (MSO) stream count from
706 : * the DisplayID VESA vendor block. 0 for conventional Single-Stream
707 : * Transport (SST), or 2 or 4 MSO streams.
708 : */
709 : u8 mso_stream_count;
710 :
711 : /**
712 : * @mso_pixel_overlap: eDP MSO segment pixel overlap, 0-8 pixels.
713 : */
714 : u8 mso_pixel_overlap;
715 :
716 : /**
717 : * @max_dsc_bpp: Maximum DSC target bitrate, if it is set to 0 the
718 : * monitor's default value is used instead.
719 : */
720 : u32 max_dsc_bpp;
721 :
722 : /**
723 : * @vics: Array of vics_len VICs. Internal to EDID parsing.
724 : */
725 : u8 *vics;
726 :
727 : /**
728 : * @vics_len: Number of elements in vics. Internal to EDID parsing.
729 : */
730 : int vics_len;
731 :
732 : /**
733 : * @quirks: EDID based quirks. Internal to EDID parsing.
734 : */
735 : u32 quirks;
736 : };
737 :
738 : int drm_display_info_set_bus_formats(struct drm_display_info *info,
739 : const u32 *formats,
740 : unsigned int num_formats);
741 :
742 : /**
743 : * struct drm_connector_tv_margins - TV connector related margins
744 : *
745 : * Describes the margins in pixels to put around the image on TV
746 : * connectors to deal with overscan.
747 : */
748 : struct drm_connector_tv_margins {
749 : /**
750 : * @bottom: Bottom margin in pixels.
751 : */
752 : unsigned int bottom;
753 :
754 : /**
755 : * @left: Left margin in pixels.
756 : */
757 : unsigned int left;
758 :
759 : /**
760 : * @right: Right margin in pixels.
761 : */
762 : unsigned int right;
763 :
764 : /**
765 : * @top: Top margin in pixels.
766 : */
767 : unsigned int top;
768 : };
769 :
770 : /**
771 : * struct drm_tv_connector_state - TV connector related states
772 : * @select_subconnector: selected subconnector
773 : * @subconnector: detected subconnector
774 : * @margins: TV margins
775 : * @legacy_mode: Legacy TV mode, driver specific value
776 : * @mode: TV mode
777 : * @brightness: brightness in percent
778 : * @contrast: contrast in percent
779 : * @flicker_reduction: flicker reduction in percent
780 : * @overscan: overscan in percent
781 : * @saturation: saturation in percent
782 : * @hue: hue in percent
783 : */
784 : struct drm_tv_connector_state {
785 : enum drm_mode_subconnector select_subconnector;
786 : enum drm_mode_subconnector subconnector;
787 : struct drm_connector_tv_margins margins;
788 : unsigned int legacy_mode;
789 : unsigned int mode;
790 : unsigned int brightness;
791 : unsigned int contrast;
792 : unsigned int flicker_reduction;
793 : unsigned int overscan;
794 : unsigned int saturation;
795 : unsigned int hue;
796 : };
797 :
798 : /**
799 : * struct drm_connector_state - mutable connector state
800 : */
801 : struct drm_connector_state {
802 : /** @connector: backpointer to the connector */
803 : struct drm_connector *connector;
804 :
805 : /**
806 : * @crtc: CRTC to connect connector to, NULL if disabled.
807 : *
808 : * Do not change this directly, use drm_atomic_set_crtc_for_connector()
809 : * instead.
810 : */
811 : struct drm_crtc *crtc;
812 :
813 : /**
814 : * @best_encoder:
815 : *
816 : * Used by the atomic helpers to select the encoder, through the
817 : * &drm_connector_helper_funcs.atomic_best_encoder or
818 : * &drm_connector_helper_funcs.best_encoder callbacks.
819 : *
820 : * This is also used in the atomic helpers to map encoders to their
821 : * current and previous connectors, see
822 : * drm_atomic_get_old_connector_for_encoder() and
823 : * drm_atomic_get_new_connector_for_encoder().
824 : *
825 : * NOTE: Atomic drivers must fill this out (either themselves or through
826 : * helpers), for otherwise the GETCONNECTOR and GETENCODER IOCTLs will
827 : * not return correct data to userspace.
828 : */
829 : struct drm_encoder *best_encoder;
830 :
831 : /**
832 : * @link_status: Connector link_status to keep track of whether link is
833 : * GOOD or BAD to notify userspace if retraining is necessary.
834 : */
835 : enum drm_link_status link_status;
836 :
837 : /** @state: backpointer to global drm_atomic_state */
838 : struct drm_atomic_state *state;
839 :
840 : /**
841 : * @commit: Tracks the pending commit to prevent use-after-free conditions.
842 : *
843 : * Is only set when @crtc is NULL.
844 : */
845 : struct drm_crtc_commit *commit;
846 :
847 : /** @tv: TV connector state */
848 : struct drm_tv_connector_state tv;
849 :
850 : /**
851 : * @self_refresh_aware:
852 : *
853 : * This tracks whether a connector is aware of the self refresh state.
854 : * It should be set to true for those connector implementations which
855 : * understand the self refresh state. This is needed since the crtc
856 : * registers the self refresh helpers and it doesn't know if the
857 : * connectors downstream have implemented self refresh entry/exit.
858 : *
859 : * Drivers should set this to true in atomic_check if they know how to
860 : * handle self_refresh requests.
861 : */
862 : bool self_refresh_aware;
863 :
864 : /**
865 : * @picture_aspect_ratio: Connector property to control the
866 : * HDMI infoframe aspect ratio setting.
867 : *
868 : * The %DRM_MODE_PICTURE_ASPECT_\* values much match the
869 : * values for &enum hdmi_picture_aspect
870 : */
871 : enum hdmi_picture_aspect picture_aspect_ratio;
872 :
873 : /**
874 : * @content_type: Connector property to control the
875 : * HDMI infoframe content type setting.
876 : * The %DRM_MODE_CONTENT_TYPE_\* values much
877 : * match the values.
878 : */
879 : unsigned int content_type;
880 :
881 : /**
882 : * @hdcp_content_type: Connector property to pass the type of
883 : * protected content. This is most commonly used for HDCP.
884 : */
885 : unsigned int hdcp_content_type;
886 :
887 : /**
888 : * @scaling_mode: Connector property to control the
889 : * upscaling, mostly used for built-in panels.
890 : */
891 : unsigned int scaling_mode;
892 :
893 : /**
894 : * @content_protection: Connector property to request content
895 : * protection. This is most commonly used for HDCP.
896 : */
897 : unsigned int content_protection;
898 :
899 : /**
900 : * @colorspace: State variable for Connector property to request
901 : * colorspace change on Sink. This is most commonly used to switch
902 : * to wider color gamuts like BT2020.
903 : */
904 : u32 colorspace;
905 :
906 : /**
907 : * @writeback_job: Writeback job for writeback connectors
908 : *
909 : * Holds the framebuffer and out-fence for a writeback connector. As
910 : * the writeback completion may be asynchronous to the normal commit
911 : * cycle, the writeback job lifetime is managed separately from the
912 : * normal atomic state by this object.
913 : *
914 : * See also: drm_writeback_queue_job() and
915 : * drm_writeback_signal_completion()
916 : */
917 : struct drm_writeback_job *writeback_job;
918 :
919 : /**
920 : * @max_requested_bpc: Connector property to limit the maximum bit
921 : * depth of the pixels.
922 : */
923 : u8 max_requested_bpc;
924 :
925 : /**
926 : * @max_bpc: Connector max_bpc based on the requested max_bpc property
927 : * and the connector bpc limitations obtained from edid.
928 : */
929 : u8 max_bpc;
930 :
931 : /**
932 : * @privacy_screen_sw_state: See :ref:`Standard Connector
933 : * Properties<standard_connector_properties>`
934 : */
935 : enum drm_privacy_screen_status privacy_screen_sw_state;
936 :
937 : /**
938 : * @hdr_output_metadata:
939 : * DRM blob property for HDR output metadata
940 : */
941 : struct drm_property_blob *hdr_output_metadata;
942 : };
943 :
944 : /**
945 : * struct drm_connector_funcs - control connectors on a given device
946 : *
947 : * Each CRTC may have one or more connectors attached to it. The functions
948 : * below allow the core DRM code to control connectors, enumerate available modes,
949 : * etc.
950 : */
951 : struct drm_connector_funcs {
952 : /**
953 : * @dpms:
954 : *
955 : * Legacy entry point to set the per-connector DPMS state. Legacy DPMS
956 : * is exposed as a standard property on the connector, but diverted to
957 : * this callback in the drm core. Note that atomic drivers don't
958 : * implement the 4 level DPMS support on the connector any more, but
959 : * instead only have an on/off "ACTIVE" property on the CRTC object.
960 : *
961 : * This hook is not used by atomic drivers, remapping of the legacy DPMS
962 : * property is entirely handled in the DRM core.
963 : *
964 : * RETURNS:
965 : *
966 : * 0 on success or a negative error code on failure.
967 : */
968 : int (*dpms)(struct drm_connector *connector, int mode);
969 :
970 : /**
971 : * @reset:
972 : *
973 : * Reset connector hardware and software state to off. This function isn't
974 : * called by the core directly, only through drm_mode_config_reset().
975 : * It's not a helper hook only for historical reasons.
976 : *
977 : * Atomic drivers can use drm_atomic_helper_connector_reset() to reset
978 : * atomic state using this hook.
979 : */
980 : void (*reset)(struct drm_connector *connector);
981 :
982 : /**
983 : * @detect:
984 : *
985 : * Check to see if anything is attached to the connector. The parameter
986 : * force is set to false whilst polling, true when checking the
987 : * connector due to a user request. force can be used by the driver to
988 : * avoid expensive, destructive operations during automated probing.
989 : *
990 : * This callback is optional, if not implemented the connector will be
991 : * considered as always being attached.
992 : *
993 : * FIXME:
994 : *
995 : * Note that this hook is only called by the probe helper. It's not in
996 : * the helper library vtable purely for historical reasons. The only DRM
997 : * core entry point to probe connector state is @fill_modes.
998 : *
999 : * Note that the helper library will already hold
1000 : * &drm_mode_config.connection_mutex. Drivers which need to grab additional
1001 : * locks to avoid races with concurrent modeset changes need to use
1002 : * &drm_connector_helper_funcs.detect_ctx instead.
1003 : *
1004 : * Also note that this callback can be called no matter the
1005 : * state the connector is in. Drivers that need the underlying
1006 : * device to be powered to perform the detection will first need
1007 : * to make sure it's been properly enabled.
1008 : *
1009 : * RETURNS:
1010 : *
1011 : * drm_connector_status indicating the connector's status.
1012 : */
1013 : enum drm_connector_status (*detect)(struct drm_connector *connector,
1014 : bool force);
1015 :
1016 : /**
1017 : * @force:
1018 : *
1019 : * This function is called to update internal encoder state when the
1020 : * connector is forced to a certain state by userspace, either through
1021 : * the sysfs interfaces or on the kernel cmdline. In that case the
1022 : * @detect callback isn't called.
1023 : *
1024 : * FIXME:
1025 : *
1026 : * Note that this hook is only called by the probe helper. It's not in
1027 : * the helper library vtable purely for historical reasons. The only DRM
1028 : * core entry point to probe connector state is @fill_modes.
1029 : */
1030 : void (*force)(struct drm_connector *connector);
1031 :
1032 : /**
1033 : * @fill_modes:
1034 : *
1035 : * Entry point for output detection and basic mode validation. The
1036 : * driver should reprobe the output if needed (e.g. when hotplug
1037 : * handling is unreliable), add all detected modes to &drm_connector.modes
1038 : * and filter out any the device can't support in any configuration. It
1039 : * also needs to filter out any modes wider or higher than the
1040 : * parameters max_width and max_height indicate.
1041 : *
1042 : * The drivers must also prune any modes no longer valid from
1043 : * &drm_connector.modes. Furthermore it must update
1044 : * &drm_connector.status and &drm_connector.edid. If no EDID has been
1045 : * received for this output connector->edid must be NULL.
1046 : *
1047 : * Drivers using the probe helpers should use
1048 : * drm_helper_probe_single_connector_modes() to implement this
1049 : * function.
1050 : *
1051 : * RETURNS:
1052 : *
1053 : * The number of modes detected and filled into &drm_connector.modes.
1054 : */
1055 : int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
1056 :
1057 : /**
1058 : * @set_property:
1059 : *
1060 : * This is the legacy entry point to update a property attached to the
1061 : * connector.
1062 : *
1063 : * This callback is optional if the driver does not support any legacy
1064 : * driver-private properties. For atomic drivers it is not used because
1065 : * property handling is done entirely in the DRM core.
1066 : *
1067 : * RETURNS:
1068 : *
1069 : * 0 on success or a negative error code on failure.
1070 : */
1071 : int (*set_property)(struct drm_connector *connector, struct drm_property *property,
1072 : uint64_t val);
1073 :
1074 : /**
1075 : * @late_register:
1076 : *
1077 : * This optional hook can be used to register additional userspace
1078 : * interfaces attached to the connector, light backlight control, i2c,
1079 : * DP aux or similar interfaces. It is called late in the driver load
1080 : * sequence from drm_connector_register() when registering all the
1081 : * core drm connector interfaces. Everything added from this callback
1082 : * should be unregistered in the early_unregister callback.
1083 : *
1084 : * This is called while holding &drm_connector.mutex.
1085 : *
1086 : * Returns:
1087 : *
1088 : * 0 on success, or a negative error code on failure.
1089 : */
1090 : int (*late_register)(struct drm_connector *connector);
1091 :
1092 : /**
1093 : * @early_unregister:
1094 : *
1095 : * This optional hook should be used to unregister the additional
1096 : * userspace interfaces attached to the connector from
1097 : * late_register(). It is called from drm_connector_unregister(),
1098 : * early in the driver unload sequence to disable userspace access
1099 : * before data structures are torndown.
1100 : *
1101 : * This is called while holding &drm_connector.mutex.
1102 : */
1103 : void (*early_unregister)(struct drm_connector *connector);
1104 :
1105 : /**
1106 : * @destroy:
1107 : *
1108 : * Clean up connector resources. This is called at driver unload time
1109 : * through drm_mode_config_cleanup(). It can also be called at runtime
1110 : * when a connector is being hot-unplugged for drivers that support
1111 : * connector hotplugging (e.g. DisplayPort MST).
1112 : */
1113 : void (*destroy)(struct drm_connector *connector);
1114 :
1115 : /**
1116 : * @atomic_duplicate_state:
1117 : *
1118 : * Duplicate the current atomic state for this connector and return it.
1119 : * The core and helpers guarantee that any atomic state duplicated with
1120 : * this hook and still owned by the caller (i.e. not transferred to the
1121 : * driver by calling &drm_mode_config_funcs.atomic_commit) will be
1122 : * cleaned up by calling the @atomic_destroy_state hook in this
1123 : * structure.
1124 : *
1125 : * This callback is mandatory for atomic drivers.
1126 : *
1127 : * Atomic drivers which don't subclass &struct drm_connector_state should use
1128 : * drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
1129 : * state structure to extend it with driver-private state should use
1130 : * __drm_atomic_helper_connector_duplicate_state() to make sure shared state is
1131 : * duplicated in a consistent fashion across drivers.
1132 : *
1133 : * It is an error to call this hook before &drm_connector.state has been
1134 : * initialized correctly.
1135 : *
1136 : * NOTE:
1137 : *
1138 : * If the duplicate state references refcounted resources this hook must
1139 : * acquire a reference for each of them. The driver must release these
1140 : * references again in @atomic_destroy_state.
1141 : *
1142 : * RETURNS:
1143 : *
1144 : * Duplicated atomic state or NULL when the allocation failed.
1145 : */
1146 : struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
1147 :
1148 : /**
1149 : * @atomic_destroy_state:
1150 : *
1151 : * Destroy a state duplicated with @atomic_duplicate_state and release
1152 : * or unreference all resources it references
1153 : *
1154 : * This callback is mandatory for atomic drivers.
1155 : */
1156 : void (*atomic_destroy_state)(struct drm_connector *connector,
1157 : struct drm_connector_state *state);
1158 :
1159 : /**
1160 : * @atomic_set_property:
1161 : *
1162 : * Decode a driver-private property value and store the decoded value
1163 : * into the passed-in state structure. Since the atomic core decodes all
1164 : * standardized properties (even for extensions beyond the core set of
1165 : * properties which might not be implemented by all drivers) this
1166 : * requires drivers to subclass the state structure.
1167 : *
1168 : * Such driver-private properties should really only be implemented for
1169 : * truly hardware/vendor specific state. Instead it is preferred to
1170 : * standardize atomic extension and decode the properties used to expose
1171 : * such an extension in the core.
1172 : *
1173 : * Do not call this function directly, use
1174 : * drm_atomic_connector_set_property() instead.
1175 : *
1176 : * This callback is optional if the driver does not support any
1177 : * driver-private atomic properties.
1178 : *
1179 : * NOTE:
1180 : *
1181 : * This function is called in the state assembly phase of atomic
1182 : * modesets, which can be aborted for any reason (including on
1183 : * userspace's request to just check whether a configuration would be
1184 : * possible). Drivers MUST NOT touch any persistent state (hardware or
1185 : * software) or data structures except the passed in @state parameter.
1186 : *
1187 : * Also since userspace controls in which order properties are set this
1188 : * function must not do any input validation (since the state update is
1189 : * incomplete and hence likely inconsistent). Instead any such input
1190 : * validation must be done in the various atomic_check callbacks.
1191 : *
1192 : * RETURNS:
1193 : *
1194 : * 0 if the property has been found, -EINVAL if the property isn't
1195 : * implemented by the driver (which shouldn't ever happen, the core only
1196 : * asks for properties attached to this connector). No other validation
1197 : * is allowed by the driver. The core already checks that the property
1198 : * value is within the range (integer, valid enum value, ...) the driver
1199 : * set when registering the property.
1200 : */
1201 : int (*atomic_set_property)(struct drm_connector *connector,
1202 : struct drm_connector_state *state,
1203 : struct drm_property *property,
1204 : uint64_t val);
1205 :
1206 : /**
1207 : * @atomic_get_property:
1208 : *
1209 : * Reads out the decoded driver-private property. This is used to
1210 : * implement the GETCONNECTOR IOCTL.
1211 : *
1212 : * Do not call this function directly, use
1213 : * drm_atomic_connector_get_property() instead.
1214 : *
1215 : * This callback is optional if the driver does not support any
1216 : * driver-private atomic properties.
1217 : *
1218 : * RETURNS:
1219 : *
1220 : * 0 on success, -EINVAL if the property isn't implemented by the
1221 : * driver (which shouldn't ever happen, the core only asks for
1222 : * properties attached to this connector).
1223 : */
1224 : int (*atomic_get_property)(struct drm_connector *connector,
1225 : const struct drm_connector_state *state,
1226 : struct drm_property *property,
1227 : uint64_t *val);
1228 :
1229 : /**
1230 : * @atomic_print_state:
1231 : *
1232 : * If driver subclasses &struct drm_connector_state, it should implement
1233 : * this optional hook for printing additional driver specific state.
1234 : *
1235 : * Do not call this directly, use drm_atomic_connector_print_state()
1236 : * instead.
1237 : */
1238 : void (*atomic_print_state)(struct drm_printer *p,
1239 : const struct drm_connector_state *state);
1240 :
1241 : /**
1242 : * @oob_hotplug_event:
1243 : *
1244 : * This will get called when a hotplug-event for a drm-connector
1245 : * has been received from a source outside the display driver / device.
1246 : */
1247 : void (*oob_hotplug_event)(struct drm_connector *connector);
1248 :
1249 : /**
1250 : * @debugfs_init:
1251 : *
1252 : * Allows connectors to create connector-specific debugfs files.
1253 : */
1254 : void (*debugfs_init)(struct drm_connector *connector, struct dentry *root);
1255 : };
1256 :
1257 : /**
1258 : * struct drm_cmdline_mode - DRM Mode passed through the kernel command-line
1259 : *
1260 : * Each connector can have an initial mode with additional options
1261 : * passed through the kernel command line. This structure allows to
1262 : * express those parameters and will be filled by the command-line
1263 : * parser.
1264 : */
1265 : struct drm_cmdline_mode {
1266 : /**
1267 : * @name:
1268 : *
1269 : * Name of the mode.
1270 : */
1271 : char name[DRM_DISPLAY_MODE_LEN];
1272 :
1273 : /**
1274 : * @specified:
1275 : *
1276 : * Has a mode been read from the command-line?
1277 : */
1278 : bool specified;
1279 :
1280 : /**
1281 : * @refresh_specified:
1282 : *
1283 : * Did the mode have a preferred refresh rate?
1284 : */
1285 : bool refresh_specified;
1286 :
1287 : /**
1288 : * @bpp_specified:
1289 : *
1290 : * Did the mode have a preferred BPP?
1291 : */
1292 : bool bpp_specified;
1293 :
1294 : /**
1295 : * @pixel_clock:
1296 : *
1297 : * Pixel Clock in kHz. Optional.
1298 : */
1299 : unsigned int pixel_clock;
1300 :
1301 : /**
1302 : * @xres:
1303 : *
1304 : * Active resolution on the X axis, in pixels.
1305 : */
1306 : int xres;
1307 :
1308 : /**
1309 : * @yres:
1310 : *
1311 : * Active resolution on the Y axis, in pixels.
1312 : */
1313 : int yres;
1314 :
1315 : /**
1316 : * @bpp:
1317 : *
1318 : * Bits per pixels for the mode.
1319 : */
1320 : int bpp;
1321 :
1322 : /**
1323 : * @refresh:
1324 : *
1325 : * Refresh rate, in Hertz.
1326 : */
1327 : int refresh;
1328 :
1329 : /**
1330 : * @rb:
1331 : *
1332 : * Do we need to use reduced blanking?
1333 : */
1334 : bool rb;
1335 :
1336 : /**
1337 : * @interlace:
1338 : *
1339 : * The mode is interlaced.
1340 : */
1341 : bool interlace;
1342 :
1343 : /**
1344 : * @cvt:
1345 : *
1346 : * The timings will be calculated using the VESA Coordinated
1347 : * Video Timings instead of looking up the mode from a table.
1348 : */
1349 : bool cvt;
1350 :
1351 : /**
1352 : * @margins:
1353 : *
1354 : * Add margins to the mode calculation (1.8% of xres rounded
1355 : * down to 8 pixels and 1.8% of yres).
1356 : */
1357 : bool margins;
1358 :
1359 : /**
1360 : * @force:
1361 : *
1362 : * Ignore the hotplug state of the connector, and force its
1363 : * state to one of the DRM_FORCE_* values.
1364 : */
1365 : enum drm_connector_force force;
1366 :
1367 : /**
1368 : * @rotation_reflection:
1369 : *
1370 : * Initial rotation and reflection of the mode setup from the
1371 : * command line. See DRM_MODE_ROTATE_* and
1372 : * DRM_MODE_REFLECT_*. The only rotations supported are
1373 : * DRM_MODE_ROTATE_0 and DRM_MODE_ROTATE_180.
1374 : */
1375 : unsigned int rotation_reflection;
1376 :
1377 : /**
1378 : * @panel_orientation:
1379 : *
1380 : * drm-connector "panel orientation" property override value,
1381 : * DRM_MODE_PANEL_ORIENTATION_UNKNOWN if not set.
1382 : */
1383 : enum drm_panel_orientation panel_orientation;
1384 :
1385 : /**
1386 : * @tv_margins: TV margins to apply to the mode.
1387 : */
1388 : struct drm_connector_tv_margins tv_margins;
1389 :
1390 : /**
1391 : * @tv_mode: TV mode standard. See DRM_MODE_TV_MODE_*.
1392 : */
1393 : enum drm_connector_tv_mode tv_mode;
1394 :
1395 : /**
1396 : * @tv_mode_specified:
1397 : *
1398 : * Did the mode have a preferred TV mode?
1399 : */
1400 : bool tv_mode_specified;
1401 : };
1402 :
1403 : /**
1404 : * struct drm_connector - central DRM connector control structure
1405 : *
1406 : * Each connector may be connected to one or more CRTCs, or may be clonable by
1407 : * another connector if they can share a CRTC. Each connector also has a specific
1408 : * position in the broader display (referred to as a 'screen' though it could
1409 : * span multiple monitors).
1410 : */
1411 : struct drm_connector {
1412 : /** @dev: parent DRM device */
1413 : struct drm_device *dev;
1414 : /** @kdev: kernel device for sysfs attributes */
1415 : struct device *kdev;
1416 : /** @attr: sysfs attributes */
1417 : struct device_attribute *attr;
1418 : /**
1419 : * @fwnode: associated fwnode supplied by platform firmware
1420 : *
1421 : * Drivers can set this to associate a fwnode with a connector, drivers
1422 : * are expected to get a reference on the fwnode when setting this.
1423 : * drm_connector_cleanup() will call fwnode_handle_put() on this.
1424 : */
1425 : struct fwnode_handle *fwnode;
1426 :
1427 : /**
1428 : * @head:
1429 : *
1430 : * List of all connectors on a @dev, linked from
1431 : * &drm_mode_config.connector_list. Protected by
1432 : * &drm_mode_config.connector_list_lock, but please only use
1433 : * &drm_connector_list_iter to walk this list.
1434 : */
1435 : struct list_head head;
1436 :
1437 : /**
1438 : * @global_connector_list_entry:
1439 : *
1440 : * Connector entry in the global connector-list, used by
1441 : * drm_connector_find_by_fwnode().
1442 : */
1443 : struct list_head global_connector_list_entry;
1444 :
1445 : /** @base: base KMS object */
1446 : struct drm_mode_object base;
1447 :
1448 : /** @name: human readable name, can be overwritten by the driver */
1449 : char *name;
1450 :
1451 : /**
1452 : * @mutex: Lock for general connector state, but currently only protects
1453 : * @registered. Most of the connector state is still protected by
1454 : * &drm_mode_config.mutex.
1455 : */
1456 : struct mutex mutex;
1457 :
1458 : /**
1459 : * @index: Compacted connector index, which matches the position inside
1460 : * the mode_config.list for drivers not supporting hot-add/removing. Can
1461 : * be used as an array index. It is invariant over the lifetime of the
1462 : * connector.
1463 : */
1464 : unsigned index;
1465 :
1466 : /**
1467 : * @connector_type:
1468 : * one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
1469 : */
1470 : int connector_type;
1471 : /** @connector_type_id: index into connector type enum */
1472 : int connector_type_id;
1473 : /**
1474 : * @interlace_allowed:
1475 : * Can this connector handle interlaced modes? Only used by
1476 : * drm_helper_probe_single_connector_modes() for mode filtering.
1477 : */
1478 : bool interlace_allowed;
1479 : /**
1480 : * @doublescan_allowed:
1481 : * Can this connector handle doublescan? Only used by
1482 : * drm_helper_probe_single_connector_modes() for mode filtering.
1483 : */
1484 : bool doublescan_allowed;
1485 : /**
1486 : * @stereo_allowed:
1487 : * Can this connector handle stereo modes? Only used by
1488 : * drm_helper_probe_single_connector_modes() for mode filtering.
1489 : */
1490 : bool stereo_allowed;
1491 :
1492 : /**
1493 : * @ycbcr_420_allowed : This bool indicates if this connector is
1494 : * capable of handling YCBCR 420 output. While parsing the EDID
1495 : * blocks it's very helpful to know if the source is capable of
1496 : * handling YCBCR 420 outputs.
1497 : */
1498 : bool ycbcr_420_allowed;
1499 :
1500 : /**
1501 : * @registration_state: Is this connector initializing, exposed
1502 : * (registered) with userspace, or unregistered?
1503 : *
1504 : * Protected by @mutex.
1505 : */
1506 : enum drm_connector_registration_state registration_state;
1507 :
1508 : /**
1509 : * @modes:
1510 : * Modes available on this connector (from fill_modes() + user).
1511 : * Protected by &drm_mode_config.mutex.
1512 : */
1513 : struct list_head modes;
1514 :
1515 : /**
1516 : * @status:
1517 : * One of the drm_connector_status enums (connected, not, or unknown).
1518 : * Protected by &drm_mode_config.mutex.
1519 : */
1520 : enum drm_connector_status status;
1521 :
1522 : /**
1523 : * @probed_modes:
1524 : * These are modes added by probing with DDC or the BIOS, before
1525 : * filtering is applied. Used by the probe helpers. Protected by
1526 : * &drm_mode_config.mutex.
1527 : */
1528 : struct list_head probed_modes;
1529 :
1530 : /**
1531 : * @display_info: Display information is filled from EDID information
1532 : * when a display is detected. For non hot-pluggable displays such as
1533 : * flat panels in embedded systems, the driver should initialize the
1534 : * &drm_display_info.width_mm and &drm_display_info.height_mm fields
1535 : * with the physical size of the display.
1536 : *
1537 : * Protected by &drm_mode_config.mutex.
1538 : */
1539 : struct drm_display_info display_info;
1540 :
1541 : /** @funcs: connector control functions */
1542 : const struct drm_connector_funcs *funcs;
1543 :
1544 : /**
1545 : * @edid_blob_ptr: DRM property containing EDID if present. Protected by
1546 : * &drm_mode_config.mutex. This should be updated only by calling
1547 : * drm_connector_update_edid_property().
1548 : */
1549 : struct drm_property_blob *edid_blob_ptr;
1550 :
1551 : /** @properties: property tracking for this connector */
1552 : struct drm_object_properties properties;
1553 :
1554 : /**
1555 : * @scaling_mode_property: Optional atomic property to control the
1556 : * upscaling. See drm_connector_attach_content_protection_property().
1557 : */
1558 : struct drm_property *scaling_mode_property;
1559 :
1560 : /**
1561 : * @vrr_capable_property: Optional property to help userspace
1562 : * query hardware support for variable refresh rate on a connector.
1563 : * connector. Drivers can add the property to a connector by
1564 : * calling drm_connector_attach_vrr_capable_property().
1565 : *
1566 : * This should be updated only by calling
1567 : * drm_connector_set_vrr_capable_property().
1568 : */
1569 : struct drm_property *vrr_capable_property;
1570 :
1571 : /**
1572 : * @colorspace_property: Connector property to set the suitable
1573 : * colorspace supported by the sink.
1574 : */
1575 : struct drm_property *colorspace_property;
1576 :
1577 : /**
1578 : * @path_blob_ptr:
1579 : *
1580 : * DRM blob property data for the DP MST path property. This should only
1581 : * be updated by calling drm_connector_set_path_property().
1582 : */
1583 : struct drm_property_blob *path_blob_ptr;
1584 :
1585 : /**
1586 : * @max_bpc_property: Default connector property for the max bpc to be
1587 : * driven out of the connector.
1588 : */
1589 : struct drm_property *max_bpc_property;
1590 :
1591 : /** @privacy_screen: drm_privacy_screen for this connector, or NULL. */
1592 : struct drm_privacy_screen *privacy_screen;
1593 :
1594 : /** @privacy_screen_notifier: privacy-screen notifier_block */
1595 : struct notifier_block privacy_screen_notifier;
1596 :
1597 : /**
1598 : * @privacy_screen_sw_state_property: Optional atomic property for the
1599 : * connector to control the integrated privacy screen.
1600 : */
1601 : struct drm_property *privacy_screen_sw_state_property;
1602 :
1603 : /**
1604 : * @privacy_screen_hw_state_property: Optional atomic property for the
1605 : * connector to report the actual integrated privacy screen state.
1606 : */
1607 : struct drm_property *privacy_screen_hw_state_property;
1608 :
1609 : #define DRM_CONNECTOR_POLL_HPD (1 << 0)
1610 : #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
1611 : #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
1612 :
1613 : /**
1614 : * @polled:
1615 : *
1616 : * Connector polling mode, a combination of
1617 : *
1618 : * DRM_CONNECTOR_POLL_HPD
1619 : * The connector generates hotplug events and doesn't need to be
1620 : * periodically polled. The CONNECT and DISCONNECT flags must not
1621 : * be set together with the HPD flag.
1622 : *
1623 : * DRM_CONNECTOR_POLL_CONNECT
1624 : * Periodically poll the connector for connection.
1625 : *
1626 : * DRM_CONNECTOR_POLL_DISCONNECT
1627 : * Periodically poll the connector for disconnection, without
1628 : * causing flickering even when the connector is in use. DACs should
1629 : * rarely do this without a lot of testing.
1630 : *
1631 : * Set to 0 for connectors that don't support connection status
1632 : * discovery.
1633 : */
1634 : uint8_t polled;
1635 :
1636 : /**
1637 : * @dpms: Current dpms state. For legacy drivers the
1638 : * &drm_connector_funcs.dpms callback must update this. For atomic
1639 : * drivers, this is handled by the core atomic code, and drivers must
1640 : * only take &drm_crtc_state.active into account.
1641 : */
1642 : int dpms;
1643 :
1644 : /** @helper_private: mid-layer private data */
1645 : const struct drm_connector_helper_funcs *helper_private;
1646 :
1647 : /** @cmdline_mode: mode line parsed from the kernel cmdline for this connector */
1648 : struct drm_cmdline_mode cmdline_mode;
1649 : /** @force: a DRM_FORCE_<foo> state for forced mode sets */
1650 : enum drm_connector_force force;
1651 :
1652 : /**
1653 : * @edid_override: Override EDID set via debugfs.
1654 : *
1655 : * Do not modify or access outside of the drm_edid_override_* family of
1656 : * functions.
1657 : */
1658 : const struct drm_edid *edid_override;
1659 :
1660 : /**
1661 : * @edid_override_mutex: Protect access to edid_override.
1662 : */
1663 : struct mutex edid_override_mutex;
1664 :
1665 : /** @epoch_counter: used to detect any other changes in connector, besides status */
1666 : u64 epoch_counter;
1667 :
1668 : /**
1669 : * @possible_encoders: Bit mask of encoders that can drive this
1670 : * connector, drm_encoder_index() determines the index into the bitfield
1671 : * and the bits are set with drm_connector_attach_encoder().
1672 : */
1673 : u32 possible_encoders;
1674 :
1675 : /**
1676 : * @encoder: Currently bound encoder driving this connector, if any.
1677 : * Only really meaningful for non-atomic drivers. Atomic drivers should
1678 : * instead look at &drm_connector_state.best_encoder, and in case they
1679 : * need the CRTC driving this output, &drm_connector_state.crtc.
1680 : */
1681 : struct drm_encoder *encoder;
1682 :
1683 : #define MAX_ELD_BYTES 128
1684 : /** @eld: EDID-like data, if present */
1685 : uint8_t eld[MAX_ELD_BYTES];
1686 : /** @latency_present: AV delay info from ELD, if found */
1687 : bool latency_present[2];
1688 : /**
1689 : * @video_latency: Video latency info from ELD, if found.
1690 : * [0]: progressive, [1]: interlaced
1691 : */
1692 : int video_latency[2];
1693 : /**
1694 : * @audio_latency: audio latency info from ELD, if found
1695 : * [0]: progressive, [1]: interlaced
1696 : */
1697 : int audio_latency[2];
1698 :
1699 : /**
1700 : * @ddc: associated ddc adapter.
1701 : * A connector usually has its associated ddc adapter. If a driver uses
1702 : * this field, then an appropriate symbolic link is created in connector
1703 : * sysfs directory to make it easy for the user to tell which i2c
1704 : * adapter is for a particular display.
1705 : *
1706 : * The field should be set by calling drm_connector_init_with_ddc().
1707 : */
1708 : struct i2c_adapter *ddc;
1709 :
1710 : /**
1711 : * @null_edid_counter: track sinks that give us all zeros for the EDID.
1712 : * Needed to workaround some HW bugs where we get all 0s
1713 : */
1714 : int null_edid_counter;
1715 :
1716 : /** @bad_edid_counter: track sinks that give us an EDID with invalid checksum */
1717 : unsigned bad_edid_counter;
1718 :
1719 : /**
1720 : * @edid_corrupt: Indicates whether the last read EDID was corrupt. Used
1721 : * in Displayport compliance testing - Displayport Link CTS Core 1.2
1722 : * rev1.1 4.2.2.6
1723 : */
1724 : bool edid_corrupt;
1725 : /**
1726 : * @real_edid_checksum: real edid checksum for corrupted edid block.
1727 : * Required in Displayport 1.4 compliance testing
1728 : * rev1.1 4.2.2.6
1729 : */
1730 : u8 real_edid_checksum;
1731 :
1732 : /** @debugfs_entry: debugfs directory for this connector */
1733 : struct dentry *debugfs_entry;
1734 :
1735 : /**
1736 : * @state:
1737 : *
1738 : * Current atomic state for this connector.
1739 : *
1740 : * This is protected by &drm_mode_config.connection_mutex. Note that
1741 : * nonblocking atomic commits access the current connector state without
1742 : * taking locks. Either by going through the &struct drm_atomic_state
1743 : * pointers, see for_each_oldnew_connector_in_state(),
1744 : * for_each_old_connector_in_state() and
1745 : * for_each_new_connector_in_state(). Or through careful ordering of
1746 : * atomic commit operations as implemented in the atomic helpers, see
1747 : * &struct drm_crtc_commit.
1748 : */
1749 : struct drm_connector_state *state;
1750 :
1751 : /* DisplayID bits. FIXME: Extract into a substruct? */
1752 :
1753 : /**
1754 : * @tile_blob_ptr:
1755 : *
1756 : * DRM blob property data for the tile property (used mostly by DP MST).
1757 : * This is meant for screens which are driven through separate display
1758 : * pipelines represented by &drm_crtc, which might not be running with
1759 : * genlocked clocks. For tiled panels which are genlocked, like
1760 : * dual-link LVDS or dual-link DSI, the driver should try to not expose
1761 : * the tiling and virtualize both &drm_crtc and &drm_plane if needed.
1762 : *
1763 : * This should only be updated by calling
1764 : * drm_connector_set_tile_property().
1765 : */
1766 : struct drm_property_blob *tile_blob_ptr;
1767 :
1768 : /** @has_tile: is this connector connected to a tiled monitor */
1769 : bool has_tile;
1770 : /** @tile_group: tile group for the connected monitor */
1771 : struct drm_tile_group *tile_group;
1772 : /** @tile_is_single_monitor: whether the tile is one monitor housing */
1773 : bool tile_is_single_monitor;
1774 :
1775 : /** @num_h_tile: number of horizontal tiles in the tile group */
1776 : /** @num_v_tile: number of vertical tiles in the tile group */
1777 : uint8_t num_h_tile, num_v_tile;
1778 : /** @tile_h_loc: horizontal location of this tile */
1779 : /** @tile_v_loc: vertical location of this tile */
1780 : uint8_t tile_h_loc, tile_v_loc;
1781 : /** @tile_h_size: horizontal size of this tile. */
1782 : /** @tile_v_size: vertical size of this tile. */
1783 : uint16_t tile_h_size, tile_v_size;
1784 :
1785 : /**
1786 : * @free_node:
1787 : *
1788 : * List used only by &drm_connector_list_iter to be able to clean up a
1789 : * connector from any context, in conjunction with
1790 : * &drm_mode_config.connector_free_work.
1791 : */
1792 : struct llist_node free_node;
1793 :
1794 : /** @hdr_sink_metadata: HDR Metadata Information read from sink */
1795 : struct hdr_sink_metadata hdr_sink_metadata;
1796 : };
1797 :
1798 : #define obj_to_connector(x) container_of(x, struct drm_connector, base)
1799 :
1800 : int drm_connector_init(struct drm_device *dev,
1801 : struct drm_connector *connector,
1802 : const struct drm_connector_funcs *funcs,
1803 : int connector_type);
1804 : int drm_connector_init_with_ddc(struct drm_device *dev,
1805 : struct drm_connector *connector,
1806 : const struct drm_connector_funcs *funcs,
1807 : int connector_type,
1808 : struct i2c_adapter *ddc);
1809 : int drmm_connector_init(struct drm_device *dev,
1810 : struct drm_connector *connector,
1811 : const struct drm_connector_funcs *funcs,
1812 : int connector_type,
1813 : struct i2c_adapter *ddc);
1814 : void drm_connector_attach_edid_property(struct drm_connector *connector);
1815 : int drm_connector_register(struct drm_connector *connector);
1816 : void drm_connector_unregister(struct drm_connector *connector);
1817 : int drm_connector_attach_encoder(struct drm_connector *connector,
1818 : struct drm_encoder *encoder);
1819 :
1820 : void drm_connector_cleanup(struct drm_connector *connector);
1821 :
1822 : static inline unsigned int drm_connector_index(const struct drm_connector *connector)
1823 : {
1824 : return connector->index;
1825 : }
1826 :
1827 : static inline u32 drm_connector_mask(const struct drm_connector *connector)
1828 : {
1829 0 : return 1 << connector->index;
1830 : }
1831 :
1832 : /**
1833 : * drm_connector_lookup - lookup connector object
1834 : * @dev: DRM device
1835 : * @file_priv: drm file to check for lease against.
1836 : * @id: connector object id
1837 : *
1838 : * This function looks up the connector object specified by id
1839 : * add takes a reference to it.
1840 : */
1841 : static inline struct drm_connector *drm_connector_lookup(struct drm_device *dev,
1842 : struct drm_file *file_priv,
1843 : uint32_t id)
1844 : {
1845 : struct drm_mode_object *mo;
1846 0 : mo = drm_mode_object_find(dev, file_priv, id, DRM_MODE_OBJECT_CONNECTOR);
1847 0 : return mo ? obj_to_connector(mo) : NULL;
1848 : }
1849 :
1850 : /**
1851 : * drm_connector_get - acquire a connector reference
1852 : * @connector: DRM connector
1853 : *
1854 : * This function increments the connector's refcount.
1855 : */
1856 : static inline void drm_connector_get(struct drm_connector *connector)
1857 : {
1858 0 : drm_mode_object_get(&connector->base);
1859 : }
1860 :
1861 : /**
1862 : * drm_connector_put - release a connector reference
1863 : * @connector: DRM connector
1864 : *
1865 : * This function decrements the connector's reference count and frees the
1866 : * object if the reference count drops to zero.
1867 : */
1868 : static inline void drm_connector_put(struct drm_connector *connector)
1869 : {
1870 0 : drm_mode_object_put(&connector->base);
1871 : }
1872 :
1873 : /**
1874 : * drm_connector_is_unregistered - has the connector been unregistered from
1875 : * userspace?
1876 : * @connector: DRM connector
1877 : *
1878 : * Checks whether or not @connector has been unregistered from userspace.
1879 : *
1880 : * Returns:
1881 : * True if the connector was unregistered, false if the connector is
1882 : * registered or has not yet been registered with userspace.
1883 : */
1884 : static inline bool
1885 : drm_connector_is_unregistered(struct drm_connector *connector)
1886 : {
1887 0 : return READ_ONCE(connector->registration_state) ==
1888 : DRM_CONNECTOR_UNREGISTERED;
1889 : }
1890 :
1891 : void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode);
1892 : const char *drm_get_connector_type_name(unsigned int connector_type);
1893 : const char *drm_get_connector_status_name(enum drm_connector_status status);
1894 : const char *drm_get_subpixel_order_name(enum subpixel_order order);
1895 : const char *drm_get_dpms_name(int val);
1896 : const char *drm_get_dvi_i_subconnector_name(int val);
1897 : const char *drm_get_dvi_i_select_name(int val);
1898 : const char *drm_get_tv_mode_name(int val);
1899 : const char *drm_get_tv_subconnector_name(int val);
1900 : const char *drm_get_tv_select_name(int val);
1901 : const char *drm_get_dp_subconnector_name(int val);
1902 : const char *drm_get_content_protection_name(int val);
1903 : const char *drm_get_hdcp_content_type_name(int val);
1904 :
1905 : int drm_get_tv_mode_from_name(const char *name, size_t len);
1906 :
1907 : int drm_mode_create_dvi_i_properties(struct drm_device *dev);
1908 : void drm_connector_attach_dp_subconnector_property(struct drm_connector *connector);
1909 :
1910 : int drm_mode_create_tv_margin_properties(struct drm_device *dev);
1911 : int drm_mode_create_tv_properties_legacy(struct drm_device *dev,
1912 : unsigned int num_modes,
1913 : const char * const modes[]);
1914 : int drm_mode_create_tv_properties(struct drm_device *dev,
1915 : unsigned int supported_tv_modes);
1916 : void drm_connector_attach_tv_margin_properties(struct drm_connector *conn);
1917 : int drm_mode_create_scaling_mode_property(struct drm_device *dev);
1918 : int drm_connector_attach_content_type_property(struct drm_connector *dev);
1919 : int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
1920 : u32 scaling_mode_mask);
1921 : int drm_connector_attach_vrr_capable_property(
1922 : struct drm_connector *connector);
1923 : int drm_connector_attach_colorspace_property(struct drm_connector *connector);
1924 : int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
1925 : bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
1926 : struct drm_connector_state *new_state);
1927 : int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
1928 : int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
1929 : int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
1930 : int drm_mode_create_content_type_property(struct drm_device *dev);
1931 : int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
1932 :
1933 : int drm_connector_set_path_property(struct drm_connector *connector,
1934 : const char *path);
1935 : int drm_connector_set_tile_property(struct drm_connector *connector);
1936 : int drm_connector_update_edid_property(struct drm_connector *connector,
1937 : const struct edid *edid);
1938 : void drm_connector_set_link_status_property(struct drm_connector *connector,
1939 : uint64_t link_status);
1940 : void drm_connector_set_vrr_capable_property(
1941 : struct drm_connector *connector, bool capable);
1942 : int drm_connector_set_panel_orientation(
1943 : struct drm_connector *connector,
1944 : enum drm_panel_orientation panel_orientation);
1945 : int drm_connector_set_panel_orientation_with_quirk(
1946 : struct drm_connector *connector,
1947 : enum drm_panel_orientation panel_orientation,
1948 : int width, int height);
1949 : int drm_connector_set_orientation_from_panel(
1950 : struct drm_connector *connector,
1951 : struct drm_panel *panel);
1952 : int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
1953 : int min, int max);
1954 : void drm_connector_create_privacy_screen_properties(struct drm_connector *conn);
1955 : void drm_connector_attach_privacy_screen_properties(struct drm_connector *conn);
1956 : void drm_connector_attach_privacy_screen_provider(
1957 : struct drm_connector *connector, struct drm_privacy_screen *priv);
1958 : void drm_connector_update_privacy_screen(const struct drm_connector_state *connector_state);
1959 :
1960 : /**
1961 : * struct drm_tile_group - Tile group metadata
1962 : * @refcount: reference count
1963 : * @dev: DRM device
1964 : * @id: tile group id exposed to userspace
1965 : * @group_data: Sink-private data identifying this group
1966 : *
1967 : * @group_data corresponds to displayid vend/prod/serial for external screens
1968 : * with an EDID.
1969 : */
1970 : struct drm_tile_group {
1971 : struct kref refcount;
1972 : struct drm_device *dev;
1973 : int id;
1974 : u8 group_data[8];
1975 : };
1976 :
1977 : struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
1978 : const char topology[8]);
1979 : struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
1980 : const char topology[8]);
1981 : void drm_mode_put_tile_group(struct drm_device *dev,
1982 : struct drm_tile_group *tg);
1983 :
1984 : /**
1985 : * struct drm_connector_list_iter - connector_list iterator
1986 : *
1987 : * This iterator tracks state needed to be able to walk the connector_list
1988 : * within struct drm_mode_config. Only use together with
1989 : * drm_connector_list_iter_begin(), drm_connector_list_iter_end() and
1990 : * drm_connector_list_iter_next() respectively the convenience macro
1991 : * drm_for_each_connector_iter().
1992 : *
1993 : * Note that the return value of drm_connector_list_iter_next() is only valid
1994 : * up to the next drm_connector_list_iter_next() or
1995 : * drm_connector_list_iter_end() call. If you want to use the connector later,
1996 : * then you need to grab your own reference first using drm_connector_get().
1997 : */
1998 : struct drm_connector_list_iter {
1999 : /* private: */
2000 : struct drm_device *dev;
2001 : struct drm_connector *conn;
2002 : };
2003 :
2004 : void drm_connector_list_iter_begin(struct drm_device *dev,
2005 : struct drm_connector_list_iter *iter);
2006 : struct drm_connector *
2007 : drm_connector_list_iter_next(struct drm_connector_list_iter *iter);
2008 : void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
2009 :
2010 : bool drm_connector_has_possible_encoder(struct drm_connector *connector,
2011 : struct drm_encoder *encoder);
2012 :
2013 : /**
2014 : * drm_for_each_connector_iter - connector_list iterator macro
2015 : * @connector: &struct drm_connector pointer used as cursor
2016 : * @iter: &struct drm_connector_list_iter
2017 : *
2018 : * Note that @connector is only valid within the list body, if you want to use
2019 : * @connector after calling drm_connector_list_iter_end() then you need to grab
2020 : * your own reference first using drm_connector_get().
2021 : */
2022 : #define drm_for_each_connector_iter(connector, iter) \
2023 : while ((connector = drm_connector_list_iter_next(iter)))
2024 :
2025 : /**
2026 : * drm_connector_for_each_possible_encoder - iterate connector's possible encoders
2027 : * @connector: &struct drm_connector pointer
2028 : * @encoder: &struct drm_encoder pointer used as cursor
2029 : */
2030 : #define drm_connector_for_each_possible_encoder(connector, encoder) \
2031 : drm_for_each_encoder_mask(encoder, (connector)->dev, \
2032 : (connector)->possible_encoders)
2033 :
2034 : #endif
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