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_property;
42 : struct drm_property_blob;
43 : struct drm_printer;
44 : struct drm_privacy_screen;
45 : struct edid;
46 : struct i2c_adapter;
47 :
48 : enum drm_connector_force {
49 : DRM_FORCE_UNSPECIFIED,
50 : DRM_FORCE_OFF,
51 : DRM_FORCE_ON, /* force on analog part normally */
52 : DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
53 : };
54 :
55 : /**
56 : * enum drm_connector_status - status for a &drm_connector
57 : *
58 : * This enum is used to track the connector status. There are no separate
59 : * #defines for the uapi!
60 : */
61 : enum drm_connector_status {
62 : /**
63 : * @connector_status_connected: The connector is definitely connected to
64 : * a sink device, and can be enabled.
65 : */
66 : connector_status_connected = 1,
67 : /**
68 : * @connector_status_disconnected: The connector isn't connected to a
69 : * sink device which can be autodetect. For digital outputs like DP or
70 : * HDMI (which can be realiable probed) this means there's really
71 : * nothing there. It is driver-dependent whether a connector with this
72 : * status can be lit up or not.
73 : */
74 : connector_status_disconnected = 2,
75 : /**
76 : * @connector_status_unknown: The connector's status could not be
77 : * reliably detected. This happens when probing would either cause
78 : * flicker (like load-detection when the connector is in use), or when a
79 : * hardware resource isn't available (like when load-detection needs a
80 : * free CRTC). It should be possible to light up the connector with one
81 : * of the listed fallback modes. For default configuration userspace
82 : * should only try to light up connectors with unknown status when
83 : * there's not connector with @connector_status_connected.
84 : */
85 : connector_status_unknown = 3,
86 : };
87 :
88 : /**
89 : * enum drm_connector_registration_state - userspace registration status for
90 : * a &drm_connector
91 : *
92 : * This enum is used to track the status of initializing a connector and
93 : * registering it with userspace, so that DRM can prevent bogus modesets on
94 : * connectors that no longer exist.
95 : */
96 : enum drm_connector_registration_state {
97 : /**
98 : * @DRM_CONNECTOR_INITIALIZING: The connector has just been created,
99 : * but has yet to be exposed to userspace. There should be no
100 : * additional restrictions to how the state of this connector may be
101 : * modified.
102 : */
103 : DRM_CONNECTOR_INITIALIZING = 0,
104 :
105 : /**
106 : * @DRM_CONNECTOR_REGISTERED: The connector has been fully initialized
107 : * and registered with sysfs, as such it has been exposed to
108 : * userspace. There should be no additional restrictions to how the
109 : * state of this connector may be modified.
110 : */
111 : DRM_CONNECTOR_REGISTERED = 1,
112 :
113 : /**
114 : * @DRM_CONNECTOR_UNREGISTERED: The connector has either been exposed
115 : * to userspace and has since been unregistered and removed from
116 : * userspace, or the connector was unregistered before it had a chance
117 : * to be exposed to userspace (e.g. still in the
118 : * @DRM_CONNECTOR_INITIALIZING state). When a connector is
119 : * unregistered, there are additional restrictions to how its state
120 : * may be modified:
121 : *
122 : * - An unregistered connector may only have its DPMS changed from
123 : * On->Off. Once DPMS is changed to Off, it may not be switched back
124 : * to On.
125 : * - Modesets are not allowed on unregistered connectors, unless they
126 : * would result in disabling its assigned CRTCs. This means
127 : * disabling a CRTC on an unregistered connector is OK, but enabling
128 : * one is not.
129 : * - Removing a CRTC from an unregistered connector is OK, but new
130 : * CRTCs may never be assigned to an unregistered connector.
131 : */
132 : DRM_CONNECTOR_UNREGISTERED = 2,
133 : };
134 :
135 : enum subpixel_order {
136 : SubPixelUnknown = 0,
137 : SubPixelHorizontalRGB,
138 : SubPixelHorizontalBGR,
139 : SubPixelVerticalRGB,
140 : SubPixelVerticalBGR,
141 : SubPixelNone,
142 :
143 : };
144 :
145 : /**
146 : * struct drm_scrambling: sink's scrambling support.
147 : */
148 : struct drm_scrambling {
149 : /**
150 : * @supported: scrambling supported for rates > 340 Mhz.
151 : */
152 : bool supported;
153 : /**
154 : * @low_rates: scrambling supported for rates <= 340 Mhz.
155 : */
156 : bool low_rates;
157 : };
158 :
159 : /*
160 : * struct drm_scdc - Information about scdc capabilities of a HDMI 2.0 sink
161 : *
162 : * Provides SCDC register support and capabilities related information on a
163 : * HDMI 2.0 sink. In case of a HDMI 1.4 sink, all parameter must be 0.
164 : */
165 : struct drm_scdc {
166 : /**
167 : * @supported: status control & data channel present.
168 : */
169 : bool supported;
170 : /**
171 : * @read_request: sink is capable of generating scdc read request.
172 : */
173 : bool read_request;
174 : /**
175 : * @scrambling: sink's scrambling capabilities
176 : */
177 : struct drm_scrambling scrambling;
178 : };
179 :
180 : /**
181 : * struct drm_hdmi_dsc_cap - DSC capabilities of HDMI sink
182 : *
183 : * Describes the DSC support provided by HDMI 2.1 sink.
184 : * The information is fetched fom additional HFVSDB blocks defined
185 : * for HDMI 2.1.
186 : */
187 : struct drm_hdmi_dsc_cap {
188 : /** @v_1p2: flag for dsc1.2 version support by sink */
189 : bool v_1p2;
190 :
191 : /** @native_420: Does sink support DSC with 4:2:0 compression */
192 : bool native_420;
193 :
194 : /**
195 : * @all_bpp: Does sink support all bpp with 4:4:4: or 4:2:2
196 : * compressed formats
197 : */
198 : bool all_bpp;
199 :
200 : /**
201 : * @bpc_supported: compressed bpc supported by sink : 10, 12 or 16 bpc
202 : */
203 : u8 bpc_supported;
204 :
205 : /** @max_slices: maximum number of Horizontal slices supported by */
206 : u8 max_slices;
207 :
208 : /** @clk_per_slice : max pixel clock in MHz supported per slice */
209 : int clk_per_slice;
210 :
211 : /** @max_lanes : dsc max lanes supported for Fixed rate Link training */
212 : u8 max_lanes;
213 :
214 : /** @max_frl_rate_per_lane : maximum frl rate with DSC per lane */
215 : u8 max_frl_rate_per_lane;
216 :
217 : /** @total_chunk_kbytes: max size of chunks in KBs supported per line*/
218 : u8 total_chunk_kbytes;
219 : };
220 :
221 : /**
222 : * struct drm_hdmi_info - runtime information about the connected HDMI sink
223 : *
224 : * Describes if a given display supports advanced HDMI 2.0 features.
225 : * This information is available in CEA-861-F extension blocks (like HF-VSDB).
226 : */
227 : struct drm_hdmi_info {
228 : /** @scdc: sink's scdc support and capabilities */
229 : struct drm_scdc scdc;
230 :
231 : /**
232 : * @y420_vdb_modes: bitmap of modes which can support ycbcr420
233 : * output only (not normal RGB/YCBCR444/422 outputs). The max VIC
234 : * defined by the CEA-861-G spec is 219, so the size is 256 bits to map
235 : * up to 256 VICs.
236 : */
237 : unsigned long y420_vdb_modes[BITS_TO_LONGS(256)];
238 :
239 : /**
240 : * @y420_cmdb_modes: bitmap of modes which can support ycbcr420
241 : * output also, along with normal HDMI outputs. The max VIC defined by
242 : * the CEA-861-G spec is 219, so the size is 256 bits to map up to 256
243 : * VICs.
244 : */
245 : unsigned long y420_cmdb_modes[BITS_TO_LONGS(256)];
246 :
247 : /** @y420_cmdb_map: bitmap of SVD index, to extraxt vcb modes */
248 : u64 y420_cmdb_map;
249 :
250 : /** @y420_dc_modes: bitmap of deep color support index */
251 : u8 y420_dc_modes;
252 :
253 : /** @max_frl_rate_per_lane: support fixed rate link */
254 : u8 max_frl_rate_per_lane;
255 :
256 : /** @max_lanes: supported by sink */
257 : u8 max_lanes;
258 :
259 : /** @dsc_cap: DSC capabilities of the sink */
260 : struct drm_hdmi_dsc_cap dsc_cap;
261 : };
262 :
263 : /**
264 : * enum drm_link_status - connector's link_status property value
265 : *
266 : * This enum is used as the connector's link status property value.
267 : * It is set to the values defined in uapi.
268 : *
269 : * @DRM_LINK_STATUS_GOOD: DP Link is Good as a result of successful
270 : * link training
271 : * @DRM_LINK_STATUS_BAD: DP Link is BAD as a result of link training
272 : * failure
273 : */
274 : enum drm_link_status {
275 : DRM_LINK_STATUS_GOOD = DRM_MODE_LINK_STATUS_GOOD,
276 : DRM_LINK_STATUS_BAD = DRM_MODE_LINK_STATUS_BAD,
277 : };
278 :
279 : /**
280 : * enum drm_panel_orientation - panel_orientation info for &drm_display_info
281 : *
282 : * This enum is used to track the (LCD) panel orientation. There are no
283 : * separate #defines for the uapi!
284 : *
285 : * @DRM_MODE_PANEL_ORIENTATION_UNKNOWN: The drm driver has not provided any
286 : * panel orientation information (normal
287 : * for non panels) in this case the "panel
288 : * orientation" connector prop will not be
289 : * attached.
290 : * @DRM_MODE_PANEL_ORIENTATION_NORMAL: The top side of the panel matches the
291 : * top side of the device's casing.
292 : * @DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: The top side of the panel matches the
293 : * bottom side of the device's casing, iow
294 : * the panel is mounted upside-down.
295 : * @DRM_MODE_PANEL_ORIENTATION_LEFT_UP: The left side of the panel matches the
296 : * top side of the device's casing.
297 : * @DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: The right side of the panel matches the
298 : * top side of the device's casing.
299 : */
300 : enum drm_panel_orientation {
301 : DRM_MODE_PANEL_ORIENTATION_UNKNOWN = -1,
302 : DRM_MODE_PANEL_ORIENTATION_NORMAL = 0,
303 : DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP,
304 : DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
305 : DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
306 : };
307 :
308 : /**
309 : * struct drm_monitor_range_info - Panel's Monitor range in EDID for
310 : * &drm_display_info
311 : *
312 : * This struct is used to store a frequency range supported by panel
313 : * as parsed from EDID's detailed monitor range descriptor block.
314 : *
315 : * @min_vfreq: This is the min supported refresh rate in Hz from
316 : * EDID's detailed monitor range.
317 : * @max_vfreq: This is the max supported refresh rate in Hz from
318 : * EDID's detailed monitor range
319 : */
320 : struct drm_monitor_range_info {
321 : u8 min_vfreq;
322 : u8 max_vfreq;
323 : };
324 :
325 : /**
326 : * enum drm_privacy_screen_status - privacy screen status
327 : *
328 : * This enum is used to track and control the state of the integrated privacy
329 : * screen present on some display panels, via the "privacy-screen sw-state"
330 : * and "privacy-screen hw-state" properties. Note the _LOCKED enum values
331 : * are only valid for the "privacy-screen hw-state" property.
332 : *
333 : * @PRIVACY_SCREEN_DISABLED:
334 : * The privacy-screen on the panel is disabled
335 : * @PRIVACY_SCREEN_ENABLED:
336 : * The privacy-screen on the panel is enabled
337 : * @PRIVACY_SCREEN_DISABLED_LOCKED:
338 : * The privacy-screen on the panel is disabled and locked (cannot be changed)
339 : * @PRIVACY_SCREEN_ENABLED_LOCKED:
340 : * The privacy-screen on the panel is enabled and locked (cannot be changed)
341 : */
342 : enum drm_privacy_screen_status {
343 : PRIVACY_SCREEN_DISABLED = 0,
344 : PRIVACY_SCREEN_ENABLED,
345 : PRIVACY_SCREEN_DISABLED_LOCKED,
346 : PRIVACY_SCREEN_ENABLED_LOCKED,
347 : };
348 :
349 : /*
350 : * This is a consolidated colorimetry list supported by HDMI and
351 : * DP protocol standard. The respective connectors will register
352 : * a property with the subset of this list (supported by that
353 : * respective protocol). Userspace will set the colorspace through
354 : * a colorspace property which will be created and exposed to
355 : * userspace.
356 : */
357 :
358 : /* For Default case, driver will set the colorspace */
359 : #define DRM_MODE_COLORIMETRY_DEFAULT 0
360 : /* CEA 861 Normal Colorimetry options */
361 : #define DRM_MODE_COLORIMETRY_NO_DATA 0
362 : #define DRM_MODE_COLORIMETRY_SMPTE_170M_YCC 1
363 : #define DRM_MODE_COLORIMETRY_BT709_YCC 2
364 : /* CEA 861 Extended Colorimetry Options */
365 : #define DRM_MODE_COLORIMETRY_XVYCC_601 3
366 : #define DRM_MODE_COLORIMETRY_XVYCC_709 4
367 : #define DRM_MODE_COLORIMETRY_SYCC_601 5
368 : #define DRM_MODE_COLORIMETRY_OPYCC_601 6
369 : #define DRM_MODE_COLORIMETRY_OPRGB 7
370 : #define DRM_MODE_COLORIMETRY_BT2020_CYCC 8
371 : #define DRM_MODE_COLORIMETRY_BT2020_RGB 9
372 : #define DRM_MODE_COLORIMETRY_BT2020_YCC 10
373 : /* Additional Colorimetry extension added as part of CTA 861.G */
374 : #define DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65 11
375 : #define DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER 12
376 : /* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */
377 : #define DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED 13
378 : #define DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT 14
379 : #define DRM_MODE_COLORIMETRY_BT601_YCC 15
380 :
381 : /**
382 : * enum drm_bus_flags - bus_flags info for &drm_display_info
383 : *
384 : * This enum defines signal polarities and clock edge information for signals on
385 : * a bus as bitmask flags.
386 : *
387 : * The clock edge information is conveyed by two sets of symbols,
388 : * DRM_BUS_FLAGS_*_DRIVE_\* and DRM_BUS_FLAGS_*_SAMPLE_\*. When this enum is
389 : * used to describe a bus from the point of view of the transmitter, the
390 : * \*_DRIVE_\* flags should be used. When used from the point of view of the
391 : * receiver, the \*_SAMPLE_\* flags should be used. The \*_DRIVE_\* and
392 : * \*_SAMPLE_\* flags alias each other, with the \*_SAMPLE_POSEDGE and
393 : * \*_SAMPLE_NEGEDGE flags being equal to \*_DRIVE_NEGEDGE and \*_DRIVE_POSEDGE
394 : * respectively. This simplifies code as signals are usually sampled on the
395 : * opposite edge of the driving edge. Transmitters and receivers may however
396 : * need to take other signal timings into account to convert between driving
397 : * and sample edges.
398 : */
399 : enum drm_bus_flags {
400 : /**
401 : * @DRM_BUS_FLAG_DE_LOW:
402 : *
403 : * The Data Enable signal is active low
404 : */
405 : DRM_BUS_FLAG_DE_LOW = BIT(0),
406 :
407 : /**
408 : * @DRM_BUS_FLAG_DE_HIGH:
409 : *
410 : * The Data Enable signal is active high
411 : */
412 : DRM_BUS_FLAG_DE_HIGH = BIT(1),
413 :
414 : /**
415 : * @DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE:
416 : *
417 : * Data is driven on the rising edge of the pixel clock
418 : */
419 : DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE = BIT(2),
420 :
421 : /**
422 : * @DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE:
423 : *
424 : * Data is driven on the falling edge of the pixel clock
425 : */
426 : DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE = BIT(3),
427 :
428 : /**
429 : * @DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE:
430 : *
431 : * Data is sampled on the rising edge of the pixel clock
432 : */
433 : DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
434 :
435 : /**
436 : * @DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE:
437 : *
438 : * Data is sampled on the falling edge of the pixel clock
439 : */
440 : DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
441 :
442 : /**
443 : * @DRM_BUS_FLAG_DATA_MSB_TO_LSB:
444 : *
445 : * Data is transmitted MSB to LSB on the bus
446 : */
447 : DRM_BUS_FLAG_DATA_MSB_TO_LSB = BIT(4),
448 :
449 : /**
450 : * @DRM_BUS_FLAG_DATA_LSB_TO_MSB:
451 : *
452 : * Data is transmitted LSB to MSB on the bus
453 : */
454 : DRM_BUS_FLAG_DATA_LSB_TO_MSB = BIT(5),
455 :
456 : /**
457 : * @DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE:
458 : *
459 : * Sync signals are driven on the rising edge of the pixel clock
460 : */
461 : DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE = BIT(6),
462 :
463 : /**
464 : * @DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE:
465 : *
466 : * Sync signals are driven on the falling edge of the pixel clock
467 : */
468 : DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE = BIT(7),
469 :
470 : /**
471 : * @DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE:
472 : *
473 : * Sync signals are sampled on the rising edge of the pixel clock
474 : */
475 : DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE = DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE,
476 :
477 : /**
478 : * @DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE:
479 : *
480 : * Sync signals are sampled on the falling edge of the pixel clock
481 : */
482 : DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE = DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE,
483 :
484 : /**
485 : * @DRM_BUS_FLAG_SHARP_SIGNALS:
486 : *
487 : * Set if the Sharp-specific signals (SPL, CLS, PS, REV) must be used
488 : */
489 : DRM_BUS_FLAG_SHARP_SIGNALS = BIT(8),
490 : };
491 :
492 : /**
493 : * struct drm_display_info - runtime data about the connected sink
494 : *
495 : * Describes a given display (e.g. CRT or flat panel) and its limitations. For
496 : * fixed display sinks like built-in panels there's not much difference between
497 : * this and &struct drm_connector. But for sinks with a real cable this
498 : * structure is meant to describe all the things at the other end of the cable.
499 : *
500 : * For sinks which provide an EDID this can be filled out by calling
501 : * drm_add_edid_modes().
502 : */
503 : struct drm_display_info {
504 : /**
505 : * @width_mm: Physical width in mm.
506 : */
507 : unsigned int width_mm;
508 :
509 : /**
510 : * @height_mm: Physical height in mm.
511 : */
512 : unsigned int height_mm;
513 :
514 : /**
515 : * @bpc: Maximum bits per color channel. Used by HDMI and DP outputs.
516 : */
517 : unsigned int bpc;
518 :
519 : /**
520 : * @subpixel_order: Subpixel order of LCD panels.
521 : */
522 : enum subpixel_order subpixel_order;
523 :
524 : #define DRM_COLOR_FORMAT_RGB444 (1<<0)
525 : #define DRM_COLOR_FORMAT_YCBCR444 (1<<1)
526 : #define DRM_COLOR_FORMAT_YCBCR422 (1<<2)
527 : #define DRM_COLOR_FORMAT_YCBCR420 (1<<3)
528 :
529 : /**
530 : * @panel_orientation: Read only connector property for built-in panels,
531 : * indicating the orientation of the panel vs the device's casing.
532 : * drm_connector_init() sets this to DRM_MODE_PANEL_ORIENTATION_UNKNOWN.
533 : * When not UNKNOWN this gets used by the drm_fb_helpers to rotate the
534 : * fb to compensate and gets exported as prop to userspace.
535 : */
536 : int panel_orientation;
537 :
538 : /**
539 : * @color_formats: HDMI Color formats, selects between RGB and YCrCb
540 : * modes. Used DRM_COLOR_FORMAT\_ defines, which are _not_ the same ones
541 : * as used to describe the pixel format in framebuffers, and also don't
542 : * match the formats in @bus_formats which are shared with v4l.
543 : */
544 : u32 color_formats;
545 :
546 : /**
547 : * @bus_formats: Pixel data format on the wire, somewhat redundant with
548 : * @color_formats. Array of size @num_bus_formats encoded using
549 : * MEDIA_BUS_FMT\_ defines shared with v4l and media drivers.
550 : */
551 : const u32 *bus_formats;
552 : /**
553 : * @num_bus_formats: Size of @bus_formats array.
554 : */
555 : unsigned int num_bus_formats;
556 :
557 : /**
558 : * @bus_flags: Additional information (like pixel signal polarity) for
559 : * the pixel data on the bus, using &enum drm_bus_flags values
560 : * DRM_BUS_FLAGS\_.
561 : */
562 : u32 bus_flags;
563 :
564 : /**
565 : * @max_tmds_clock: Maximum TMDS clock rate supported by the
566 : * sink in kHz. 0 means undefined.
567 : */
568 : int max_tmds_clock;
569 :
570 : /**
571 : * @dvi_dual: Dual-link DVI sink?
572 : */
573 : bool dvi_dual;
574 :
575 : /**
576 : * @is_hdmi: True if the sink is an HDMI device.
577 : *
578 : * This field shall be used instead of calling
579 : * drm_detect_hdmi_monitor() when possible.
580 : */
581 : bool is_hdmi;
582 :
583 : /**
584 : * @has_hdmi_infoframe: Does the sink support the HDMI infoframe?
585 : */
586 : bool has_hdmi_infoframe;
587 :
588 : /**
589 : * @rgb_quant_range_selectable: Does the sink support selecting
590 : * the RGB quantization range?
591 : */
592 : bool rgb_quant_range_selectable;
593 :
594 : /**
595 : * @edid_hdmi_rgb444_dc_modes: Mask of supported hdmi deep color modes
596 : * in RGB 4:4:4. Even more stuff redundant with @bus_formats.
597 : */
598 : u8 edid_hdmi_rgb444_dc_modes;
599 :
600 : /**
601 : * @edid_hdmi_ycbcr444_dc_modes: Mask of supported hdmi deep color
602 : * modes in YCbCr 4:4:4. Even more stuff redundant with @bus_formats.
603 : */
604 : u8 edid_hdmi_ycbcr444_dc_modes;
605 :
606 : /**
607 : * @cea_rev: CEA revision of the HDMI sink.
608 : */
609 : u8 cea_rev;
610 :
611 : /**
612 : * @hdmi: advance features of a HDMI sink.
613 : */
614 : struct drm_hdmi_info hdmi;
615 :
616 : /**
617 : * @non_desktop: Non desktop display (HMD).
618 : */
619 : bool non_desktop;
620 :
621 : /**
622 : * @monitor_range: Frequency range supported by monitor range descriptor
623 : */
624 : struct drm_monitor_range_info monitor_range;
625 :
626 : /**
627 : * @mso_stream_count: eDP Multi-SST Operation (MSO) stream count from
628 : * the DisplayID VESA vendor block. 0 for conventional Single-Stream
629 : * Transport (SST), or 2 or 4 MSO streams.
630 : */
631 : u8 mso_stream_count;
632 :
633 : /**
634 : * @mso_pixel_overlap: eDP MSO segment pixel overlap, 0-8 pixels.
635 : */
636 : u8 mso_pixel_overlap;
637 : };
638 :
639 : int drm_display_info_set_bus_formats(struct drm_display_info *info,
640 : const u32 *formats,
641 : unsigned int num_formats);
642 :
643 : /**
644 : * struct drm_connector_tv_margins - TV connector related margins
645 : *
646 : * Describes the margins in pixels to put around the image on TV
647 : * connectors to deal with overscan.
648 : */
649 : struct drm_connector_tv_margins {
650 : /**
651 : * @bottom: Bottom margin in pixels.
652 : */
653 : unsigned int bottom;
654 :
655 : /**
656 : * @left: Left margin in pixels.
657 : */
658 : unsigned int left;
659 :
660 : /**
661 : * @right: Right margin in pixels.
662 : */
663 : unsigned int right;
664 :
665 : /**
666 : * @top: Top margin in pixels.
667 : */
668 : unsigned int top;
669 : };
670 :
671 : /**
672 : * struct drm_tv_connector_state - TV connector related states
673 : * @subconnector: selected subconnector
674 : * @margins: TV margins
675 : * @mode: TV mode
676 : * @brightness: brightness in percent
677 : * @contrast: contrast in percent
678 : * @flicker_reduction: flicker reduction in percent
679 : * @overscan: overscan in percent
680 : * @saturation: saturation in percent
681 : * @hue: hue in percent
682 : */
683 : struct drm_tv_connector_state {
684 : enum drm_mode_subconnector subconnector;
685 : struct drm_connector_tv_margins margins;
686 : unsigned int mode;
687 : unsigned int brightness;
688 : unsigned int contrast;
689 : unsigned int flicker_reduction;
690 : unsigned int overscan;
691 : unsigned int saturation;
692 : unsigned int hue;
693 : };
694 :
695 : /**
696 : * struct drm_connector_state - mutable connector state
697 : */
698 : struct drm_connector_state {
699 : /** @connector: backpointer to the connector */
700 : struct drm_connector *connector;
701 :
702 : /**
703 : * @crtc: CRTC to connect connector to, NULL if disabled.
704 : *
705 : * Do not change this directly, use drm_atomic_set_crtc_for_connector()
706 : * instead.
707 : */
708 : struct drm_crtc *crtc;
709 :
710 : /**
711 : * @best_encoder:
712 : *
713 : * Used by the atomic helpers to select the encoder, through the
714 : * &drm_connector_helper_funcs.atomic_best_encoder or
715 : * &drm_connector_helper_funcs.best_encoder callbacks.
716 : *
717 : * This is also used in the atomic helpers to map encoders to their
718 : * current and previous connectors, see
719 : * drm_atomic_get_old_connector_for_encoder() and
720 : * drm_atomic_get_new_connector_for_encoder().
721 : *
722 : * NOTE: Atomic drivers must fill this out (either themselves or through
723 : * helpers), for otherwise the GETCONNECTOR and GETENCODER IOCTLs will
724 : * not return correct data to userspace.
725 : */
726 : struct drm_encoder *best_encoder;
727 :
728 : /**
729 : * @link_status: Connector link_status to keep track of whether link is
730 : * GOOD or BAD to notify userspace if retraining is necessary.
731 : */
732 : enum drm_link_status link_status;
733 :
734 : /** @state: backpointer to global drm_atomic_state */
735 : struct drm_atomic_state *state;
736 :
737 : /**
738 : * @commit: Tracks the pending commit to prevent use-after-free conditions.
739 : *
740 : * Is only set when @crtc is NULL.
741 : */
742 : struct drm_crtc_commit *commit;
743 :
744 : /** @tv: TV connector state */
745 : struct drm_tv_connector_state tv;
746 :
747 : /**
748 : * @self_refresh_aware:
749 : *
750 : * This tracks whether a connector is aware of the self refresh state.
751 : * It should be set to true for those connector implementations which
752 : * understand the self refresh state. This is needed since the crtc
753 : * registers the self refresh helpers and it doesn't know if the
754 : * connectors downstream have implemented self refresh entry/exit.
755 : *
756 : * Drivers should set this to true in atomic_check if they know how to
757 : * handle self_refresh requests.
758 : */
759 : bool self_refresh_aware;
760 :
761 : /**
762 : * @picture_aspect_ratio: Connector property to control the
763 : * HDMI infoframe aspect ratio setting.
764 : *
765 : * The %DRM_MODE_PICTURE_ASPECT_\* values much match the
766 : * values for &enum hdmi_picture_aspect
767 : */
768 : enum hdmi_picture_aspect picture_aspect_ratio;
769 :
770 : /**
771 : * @content_type: Connector property to control the
772 : * HDMI infoframe content type setting.
773 : * The %DRM_MODE_CONTENT_TYPE_\* values much
774 : * match the values.
775 : */
776 : unsigned int content_type;
777 :
778 : /**
779 : * @hdcp_content_type: Connector property to pass the type of
780 : * protected content. This is most commonly used for HDCP.
781 : */
782 : unsigned int hdcp_content_type;
783 :
784 : /**
785 : * @scaling_mode: Connector property to control the
786 : * upscaling, mostly used for built-in panels.
787 : */
788 : unsigned int scaling_mode;
789 :
790 : /**
791 : * @content_protection: Connector property to request content
792 : * protection. This is most commonly used for HDCP.
793 : */
794 : unsigned int content_protection;
795 :
796 : /**
797 : * @colorspace: State variable for Connector property to request
798 : * colorspace change on Sink. This is most commonly used to switch
799 : * to wider color gamuts like BT2020.
800 : */
801 : u32 colorspace;
802 :
803 : /**
804 : * @writeback_job: Writeback job for writeback connectors
805 : *
806 : * Holds the framebuffer and out-fence for a writeback connector. As
807 : * the writeback completion may be asynchronous to the normal commit
808 : * cycle, the writeback job lifetime is managed separately from the
809 : * normal atomic state by this object.
810 : *
811 : * See also: drm_writeback_queue_job() and
812 : * drm_writeback_signal_completion()
813 : */
814 : struct drm_writeback_job *writeback_job;
815 :
816 : /**
817 : * @max_requested_bpc: Connector property to limit the maximum bit
818 : * depth of the pixels.
819 : */
820 : u8 max_requested_bpc;
821 :
822 : /**
823 : * @max_bpc: Connector max_bpc based on the requested max_bpc property
824 : * and the connector bpc limitations obtained from edid.
825 : */
826 : u8 max_bpc;
827 :
828 : /**
829 : * @privacy_screen_sw_state: See :ref:`Standard Connector
830 : * Properties<standard_connector_properties>`
831 : */
832 : enum drm_privacy_screen_status privacy_screen_sw_state;
833 :
834 : /**
835 : * @hdr_output_metadata:
836 : * DRM blob property for HDR output metadata
837 : */
838 : struct drm_property_blob *hdr_output_metadata;
839 : };
840 :
841 : /**
842 : * struct drm_connector_funcs - control connectors on a given device
843 : *
844 : * Each CRTC may have one or more connectors attached to it. The functions
845 : * below allow the core DRM code to control connectors, enumerate available modes,
846 : * etc.
847 : */
848 : struct drm_connector_funcs {
849 : /**
850 : * @dpms:
851 : *
852 : * Legacy entry point to set the per-connector DPMS state. Legacy DPMS
853 : * is exposed as a standard property on the connector, but diverted to
854 : * this callback in the drm core. Note that atomic drivers don't
855 : * implement the 4 level DPMS support on the connector any more, but
856 : * instead only have an on/off "ACTIVE" property on the CRTC object.
857 : *
858 : * This hook is not used by atomic drivers, remapping of the legacy DPMS
859 : * property is entirely handled in the DRM core.
860 : *
861 : * RETURNS:
862 : *
863 : * 0 on success or a negative error code on failure.
864 : */
865 : int (*dpms)(struct drm_connector *connector, int mode);
866 :
867 : /**
868 : * @reset:
869 : *
870 : * Reset connector hardware and software state to off. This function isn't
871 : * called by the core directly, only through drm_mode_config_reset().
872 : * It's not a helper hook only for historical reasons.
873 : *
874 : * Atomic drivers can use drm_atomic_helper_connector_reset() to reset
875 : * atomic state using this hook.
876 : */
877 : void (*reset)(struct drm_connector *connector);
878 :
879 : /**
880 : * @detect:
881 : *
882 : * Check to see if anything is attached to the connector. The parameter
883 : * force is set to false whilst polling, true when checking the
884 : * connector due to a user request. force can be used by the driver to
885 : * avoid expensive, destructive operations during automated probing.
886 : *
887 : * This callback is optional, if not implemented the connector will be
888 : * considered as always being attached.
889 : *
890 : * FIXME:
891 : *
892 : * Note that this hook is only called by the probe helper. It's not in
893 : * the helper library vtable purely for historical reasons. The only DRM
894 : * core entry point to probe connector state is @fill_modes.
895 : *
896 : * Note that the helper library will already hold
897 : * &drm_mode_config.connection_mutex. Drivers which need to grab additional
898 : * locks to avoid races with concurrent modeset changes need to use
899 : * &drm_connector_helper_funcs.detect_ctx instead.
900 : *
901 : * Also note that this callback can be called no matter the
902 : * state the connector is in. Drivers that need the underlying
903 : * device to be powered to perform the detection will first need
904 : * to make sure it's been properly enabled.
905 : *
906 : * RETURNS:
907 : *
908 : * drm_connector_status indicating the connector's status.
909 : */
910 : enum drm_connector_status (*detect)(struct drm_connector *connector,
911 : bool force);
912 :
913 : /**
914 : * @force:
915 : *
916 : * This function is called to update internal encoder state when the
917 : * connector is forced to a certain state by userspace, either through
918 : * the sysfs interfaces or on the kernel cmdline. In that case the
919 : * @detect callback isn't called.
920 : *
921 : * FIXME:
922 : *
923 : * Note that this hook is only called by the probe helper. It's not in
924 : * the helper library vtable purely for historical reasons. The only DRM
925 : * core entry point to probe connector state is @fill_modes.
926 : */
927 : void (*force)(struct drm_connector *connector);
928 :
929 : /**
930 : * @fill_modes:
931 : *
932 : * Entry point for output detection and basic mode validation. The
933 : * driver should reprobe the output if needed (e.g. when hotplug
934 : * handling is unreliable), add all detected modes to &drm_connector.modes
935 : * and filter out any the device can't support in any configuration. It
936 : * also needs to filter out any modes wider or higher than the
937 : * parameters max_width and max_height indicate.
938 : *
939 : * The drivers must also prune any modes no longer valid from
940 : * &drm_connector.modes. Furthermore it must update
941 : * &drm_connector.status and &drm_connector.edid. If no EDID has been
942 : * received for this output connector->edid must be NULL.
943 : *
944 : * Drivers using the probe helpers should use
945 : * drm_helper_probe_single_connector_modes() to implement this
946 : * function.
947 : *
948 : * RETURNS:
949 : *
950 : * The number of modes detected and filled into &drm_connector.modes.
951 : */
952 : int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
953 :
954 : /**
955 : * @set_property:
956 : *
957 : * This is the legacy entry point to update a property attached to the
958 : * connector.
959 : *
960 : * This callback is optional if the driver does not support any legacy
961 : * driver-private properties. For atomic drivers it is not used because
962 : * property handling is done entirely in the DRM core.
963 : *
964 : * RETURNS:
965 : *
966 : * 0 on success or a negative error code on failure.
967 : */
968 : int (*set_property)(struct drm_connector *connector, struct drm_property *property,
969 : uint64_t val);
970 :
971 : /**
972 : * @late_register:
973 : *
974 : * This optional hook can be used to register additional userspace
975 : * interfaces attached to the connector, light backlight control, i2c,
976 : * DP aux or similar interfaces. It is called late in the driver load
977 : * sequence from drm_connector_register() when registering all the
978 : * core drm connector interfaces. Everything added from this callback
979 : * should be unregistered in the early_unregister callback.
980 : *
981 : * This is called while holding &drm_connector.mutex.
982 : *
983 : * Returns:
984 : *
985 : * 0 on success, or a negative error code on failure.
986 : */
987 : int (*late_register)(struct drm_connector *connector);
988 :
989 : /**
990 : * @early_unregister:
991 : *
992 : * This optional hook should be used to unregister the additional
993 : * userspace interfaces attached to the connector from
994 : * late_register(). It is called from drm_connector_unregister(),
995 : * early in the driver unload sequence to disable userspace access
996 : * before data structures are torndown.
997 : *
998 : * This is called while holding &drm_connector.mutex.
999 : */
1000 : void (*early_unregister)(struct drm_connector *connector);
1001 :
1002 : /**
1003 : * @destroy:
1004 : *
1005 : * Clean up connector resources. This is called at driver unload time
1006 : * through drm_mode_config_cleanup(). It can also be called at runtime
1007 : * when a connector is being hot-unplugged for drivers that support
1008 : * connector hotplugging (e.g. DisplayPort MST).
1009 : */
1010 : void (*destroy)(struct drm_connector *connector);
1011 :
1012 : /**
1013 : * @atomic_duplicate_state:
1014 : *
1015 : * Duplicate the current atomic state for this connector and return it.
1016 : * The core and helpers guarantee that any atomic state duplicated with
1017 : * this hook and still owned by the caller (i.e. not transferred to the
1018 : * driver by calling &drm_mode_config_funcs.atomic_commit) will be
1019 : * cleaned up by calling the @atomic_destroy_state hook in this
1020 : * structure.
1021 : *
1022 : * This callback is mandatory for atomic drivers.
1023 : *
1024 : * Atomic drivers which don't subclass &struct drm_connector_state should use
1025 : * drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
1026 : * state structure to extend it with driver-private state should use
1027 : * __drm_atomic_helper_connector_duplicate_state() to make sure shared state is
1028 : * duplicated in a consistent fashion across drivers.
1029 : *
1030 : * It is an error to call this hook before &drm_connector.state has been
1031 : * initialized correctly.
1032 : *
1033 : * NOTE:
1034 : *
1035 : * If the duplicate state references refcounted resources this hook must
1036 : * acquire a reference for each of them. The driver must release these
1037 : * references again in @atomic_destroy_state.
1038 : *
1039 : * RETURNS:
1040 : *
1041 : * Duplicated atomic state or NULL when the allocation failed.
1042 : */
1043 : struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
1044 :
1045 : /**
1046 : * @atomic_destroy_state:
1047 : *
1048 : * Destroy a state duplicated with @atomic_duplicate_state and release
1049 : * or unreference all resources it references
1050 : *
1051 : * This callback is mandatory for atomic drivers.
1052 : */
1053 : void (*atomic_destroy_state)(struct drm_connector *connector,
1054 : struct drm_connector_state *state);
1055 :
1056 : /**
1057 : * @atomic_set_property:
1058 : *
1059 : * Decode a driver-private property value and store the decoded value
1060 : * into the passed-in state structure. Since the atomic core decodes all
1061 : * standardized properties (even for extensions beyond the core set of
1062 : * properties which might not be implemented by all drivers) this
1063 : * requires drivers to subclass the state structure.
1064 : *
1065 : * Such driver-private properties should really only be implemented for
1066 : * truly hardware/vendor specific state. Instead it is preferred to
1067 : * standardize atomic extension and decode the properties used to expose
1068 : * such an extension in the core.
1069 : *
1070 : * Do not call this function directly, use
1071 : * drm_atomic_connector_set_property() instead.
1072 : *
1073 : * This callback is optional if the driver does not support any
1074 : * driver-private atomic properties.
1075 : *
1076 : * NOTE:
1077 : *
1078 : * This function is called in the state assembly phase of atomic
1079 : * modesets, which can be aborted for any reason (including on
1080 : * userspace's request to just check whether a configuration would be
1081 : * possible). Drivers MUST NOT touch any persistent state (hardware or
1082 : * software) or data structures except the passed in @state parameter.
1083 : *
1084 : * Also since userspace controls in which order properties are set this
1085 : * function must not do any input validation (since the state update is
1086 : * incomplete and hence likely inconsistent). Instead any such input
1087 : * validation must be done in the various atomic_check callbacks.
1088 : *
1089 : * RETURNS:
1090 : *
1091 : * 0 if the property has been found, -EINVAL if the property isn't
1092 : * implemented by the driver (which shouldn't ever happen, the core only
1093 : * asks for properties attached to this connector). No other validation
1094 : * is allowed by the driver. The core already checks that the property
1095 : * value is within the range (integer, valid enum value, ...) the driver
1096 : * set when registering the property.
1097 : */
1098 : int (*atomic_set_property)(struct drm_connector *connector,
1099 : struct drm_connector_state *state,
1100 : struct drm_property *property,
1101 : uint64_t val);
1102 :
1103 : /**
1104 : * @atomic_get_property:
1105 : *
1106 : * Reads out the decoded driver-private property. This is used to
1107 : * implement the GETCONNECTOR IOCTL.
1108 : *
1109 : * Do not call this function directly, use
1110 : * drm_atomic_connector_get_property() instead.
1111 : *
1112 : * This callback is optional if the driver does not support any
1113 : * driver-private atomic properties.
1114 : *
1115 : * RETURNS:
1116 : *
1117 : * 0 on success, -EINVAL if the property isn't implemented by the
1118 : * driver (which shouldn't ever happen, the core only asks for
1119 : * properties attached to this connector).
1120 : */
1121 : int (*atomic_get_property)(struct drm_connector *connector,
1122 : const struct drm_connector_state *state,
1123 : struct drm_property *property,
1124 : uint64_t *val);
1125 :
1126 : /**
1127 : * @atomic_print_state:
1128 : *
1129 : * If driver subclasses &struct drm_connector_state, it should implement
1130 : * this optional hook for printing additional driver specific state.
1131 : *
1132 : * Do not call this directly, use drm_atomic_connector_print_state()
1133 : * instead.
1134 : */
1135 : void (*atomic_print_state)(struct drm_printer *p,
1136 : const struct drm_connector_state *state);
1137 :
1138 : /**
1139 : * @oob_hotplug_event:
1140 : *
1141 : * This will get called when a hotplug-event for a drm-connector
1142 : * has been received from a source outside the display driver / device.
1143 : */
1144 : void (*oob_hotplug_event)(struct drm_connector *connector);
1145 :
1146 : /**
1147 : * @debugfs_init:
1148 : *
1149 : * Allows connectors to create connector-specific debugfs files.
1150 : */
1151 : void (*debugfs_init)(struct drm_connector *connector, struct dentry *root);
1152 : };
1153 :
1154 : /**
1155 : * struct drm_cmdline_mode - DRM Mode passed through the kernel command-line
1156 : *
1157 : * Each connector can have an initial mode with additional options
1158 : * passed through the kernel command line. This structure allows to
1159 : * express those parameters and will be filled by the command-line
1160 : * parser.
1161 : */
1162 : struct drm_cmdline_mode {
1163 : /**
1164 : * @name:
1165 : *
1166 : * Name of the mode.
1167 : */
1168 : char name[DRM_DISPLAY_MODE_LEN];
1169 :
1170 : /**
1171 : * @specified:
1172 : *
1173 : * Has a mode been read from the command-line?
1174 : */
1175 : bool specified;
1176 :
1177 : /**
1178 : * @refresh_specified:
1179 : *
1180 : * Did the mode have a preferred refresh rate?
1181 : */
1182 : bool refresh_specified;
1183 :
1184 : /**
1185 : * @bpp_specified:
1186 : *
1187 : * Did the mode have a preferred BPP?
1188 : */
1189 : bool bpp_specified;
1190 :
1191 : /**
1192 : * @xres:
1193 : *
1194 : * Active resolution on the X axis, in pixels.
1195 : */
1196 : int xres;
1197 :
1198 : /**
1199 : * @yres:
1200 : *
1201 : * Active resolution on the Y axis, in pixels.
1202 : */
1203 : int yres;
1204 :
1205 : /**
1206 : * @bpp:
1207 : *
1208 : * Bits per pixels for the mode.
1209 : */
1210 : int bpp;
1211 :
1212 : /**
1213 : * @refresh:
1214 : *
1215 : * Refresh rate, in Hertz.
1216 : */
1217 : int refresh;
1218 :
1219 : /**
1220 : * @rb:
1221 : *
1222 : * Do we need to use reduced blanking?
1223 : */
1224 : bool rb;
1225 :
1226 : /**
1227 : * @interlace:
1228 : *
1229 : * The mode is interlaced.
1230 : */
1231 : bool interlace;
1232 :
1233 : /**
1234 : * @cvt:
1235 : *
1236 : * The timings will be calculated using the VESA Coordinated
1237 : * Video Timings instead of looking up the mode from a table.
1238 : */
1239 : bool cvt;
1240 :
1241 : /**
1242 : * @margins:
1243 : *
1244 : * Add margins to the mode calculation (1.8% of xres rounded
1245 : * down to 8 pixels and 1.8% of yres).
1246 : */
1247 : bool margins;
1248 :
1249 : /**
1250 : * @force:
1251 : *
1252 : * Ignore the hotplug state of the connector, and force its
1253 : * state to one of the DRM_FORCE_* values.
1254 : */
1255 : enum drm_connector_force force;
1256 :
1257 : /**
1258 : * @rotation_reflection:
1259 : *
1260 : * Initial rotation and reflection of the mode setup from the
1261 : * command line. See DRM_MODE_ROTATE_* and
1262 : * DRM_MODE_REFLECT_*. The only rotations supported are
1263 : * DRM_MODE_ROTATE_0 and DRM_MODE_ROTATE_180.
1264 : */
1265 : unsigned int rotation_reflection;
1266 :
1267 : /**
1268 : * @panel_orientation:
1269 : *
1270 : * drm-connector "panel orientation" property override value,
1271 : * DRM_MODE_PANEL_ORIENTATION_UNKNOWN if not set.
1272 : */
1273 : enum drm_panel_orientation panel_orientation;
1274 :
1275 : /**
1276 : * @tv_margins: TV margins to apply to the mode.
1277 : */
1278 : struct drm_connector_tv_margins tv_margins;
1279 : };
1280 :
1281 : /**
1282 : * struct drm_connector - central DRM connector control structure
1283 : *
1284 : * Each connector may be connected to one or more CRTCs, or may be clonable by
1285 : * another connector if they can share a CRTC. Each connector also has a specific
1286 : * position in the broader display (referred to as a 'screen' though it could
1287 : * span multiple monitors).
1288 : */
1289 : struct drm_connector {
1290 : /** @dev: parent DRM device */
1291 : struct drm_device *dev;
1292 : /** @kdev: kernel device for sysfs attributes */
1293 : struct device *kdev;
1294 : /** @attr: sysfs attributes */
1295 : struct device_attribute *attr;
1296 : /**
1297 : * @fwnode: associated fwnode supplied by platform firmware
1298 : *
1299 : * Drivers can set this to associate a fwnode with a connector, drivers
1300 : * are expected to get a reference on the fwnode when setting this.
1301 : * drm_connector_cleanup() will call fwnode_handle_put() on this.
1302 : */
1303 : struct fwnode_handle *fwnode;
1304 :
1305 : /**
1306 : * @head:
1307 : *
1308 : * List of all connectors on a @dev, linked from
1309 : * &drm_mode_config.connector_list. Protected by
1310 : * &drm_mode_config.connector_list_lock, but please only use
1311 : * &drm_connector_list_iter to walk this list.
1312 : */
1313 : struct list_head head;
1314 :
1315 : /**
1316 : * @global_connector_list_entry:
1317 : *
1318 : * Connector entry in the global connector-list, used by
1319 : * drm_connector_find_by_fwnode().
1320 : */
1321 : struct list_head global_connector_list_entry;
1322 :
1323 : /** @base: base KMS object */
1324 : struct drm_mode_object base;
1325 :
1326 : /** @name: human readable name, can be overwritten by the driver */
1327 : char *name;
1328 :
1329 : /**
1330 : * @mutex: Lock for general connector state, but currently only protects
1331 : * @registered. Most of the connector state is still protected by
1332 : * &drm_mode_config.mutex.
1333 : */
1334 : struct mutex mutex;
1335 :
1336 : /**
1337 : * @index: Compacted connector index, which matches the position inside
1338 : * the mode_config.list for drivers not supporting hot-add/removing. Can
1339 : * be used as an array index. It is invariant over the lifetime of the
1340 : * connector.
1341 : */
1342 : unsigned index;
1343 :
1344 : /**
1345 : * @connector_type:
1346 : * one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
1347 : */
1348 : int connector_type;
1349 : /** @connector_type_id: index into connector type enum */
1350 : int connector_type_id;
1351 : /**
1352 : * @interlace_allowed:
1353 : * Can this connector handle interlaced modes? Only used by
1354 : * drm_helper_probe_single_connector_modes() for mode filtering.
1355 : */
1356 : bool interlace_allowed;
1357 : /**
1358 : * @doublescan_allowed:
1359 : * Can this connector handle doublescan? Only used by
1360 : * drm_helper_probe_single_connector_modes() for mode filtering.
1361 : */
1362 : bool doublescan_allowed;
1363 : /**
1364 : * @stereo_allowed:
1365 : * Can this connector handle stereo modes? Only used by
1366 : * drm_helper_probe_single_connector_modes() for mode filtering.
1367 : */
1368 : bool stereo_allowed;
1369 :
1370 : /**
1371 : * @ycbcr_420_allowed : This bool indicates if this connector is
1372 : * capable of handling YCBCR 420 output. While parsing the EDID
1373 : * blocks it's very helpful to know if the source is capable of
1374 : * handling YCBCR 420 outputs.
1375 : */
1376 : bool ycbcr_420_allowed;
1377 :
1378 : /**
1379 : * @registration_state: Is this connector initializing, exposed
1380 : * (registered) with userspace, or unregistered?
1381 : *
1382 : * Protected by @mutex.
1383 : */
1384 : enum drm_connector_registration_state registration_state;
1385 :
1386 : /**
1387 : * @modes:
1388 : * Modes available on this connector (from fill_modes() + user).
1389 : * Protected by &drm_mode_config.mutex.
1390 : */
1391 : struct list_head modes;
1392 :
1393 : /**
1394 : * @status:
1395 : * One of the drm_connector_status enums (connected, not, or unknown).
1396 : * Protected by &drm_mode_config.mutex.
1397 : */
1398 : enum drm_connector_status status;
1399 :
1400 : /**
1401 : * @probed_modes:
1402 : * These are modes added by probing with DDC or the BIOS, before
1403 : * filtering is applied. Used by the probe helpers. Protected by
1404 : * &drm_mode_config.mutex.
1405 : */
1406 : struct list_head probed_modes;
1407 :
1408 : /**
1409 : * @display_info: Display information is filled from EDID information
1410 : * when a display is detected. For non hot-pluggable displays such as
1411 : * flat panels in embedded systems, the driver should initialize the
1412 : * &drm_display_info.width_mm and &drm_display_info.height_mm fields
1413 : * with the physical size of the display.
1414 : *
1415 : * Protected by &drm_mode_config.mutex.
1416 : */
1417 : struct drm_display_info display_info;
1418 :
1419 : /** @funcs: connector control functions */
1420 : const struct drm_connector_funcs *funcs;
1421 :
1422 : /**
1423 : * @edid_blob_ptr: DRM property containing EDID if present. Protected by
1424 : * &drm_mode_config.mutex. This should be updated only by calling
1425 : * drm_connector_update_edid_property().
1426 : */
1427 : struct drm_property_blob *edid_blob_ptr;
1428 :
1429 : /** @properties: property tracking for this connector */
1430 : struct drm_object_properties properties;
1431 :
1432 : /**
1433 : * @scaling_mode_property: Optional atomic property to control the
1434 : * upscaling. See drm_connector_attach_content_protection_property().
1435 : */
1436 : struct drm_property *scaling_mode_property;
1437 :
1438 : /**
1439 : * @vrr_capable_property: Optional property to help userspace
1440 : * query hardware support for variable refresh rate on a connector.
1441 : * connector. Drivers can add the property to a connector by
1442 : * calling drm_connector_attach_vrr_capable_property().
1443 : *
1444 : * This should be updated only by calling
1445 : * drm_connector_set_vrr_capable_property().
1446 : */
1447 : struct drm_property *vrr_capable_property;
1448 :
1449 : /**
1450 : * @colorspace_property: Connector property to set the suitable
1451 : * colorspace supported by the sink.
1452 : */
1453 : struct drm_property *colorspace_property;
1454 :
1455 : /**
1456 : * @path_blob_ptr:
1457 : *
1458 : * DRM blob property data for the DP MST path property. This should only
1459 : * be updated by calling drm_connector_set_path_property().
1460 : */
1461 : struct drm_property_blob *path_blob_ptr;
1462 :
1463 : /**
1464 : * @max_bpc_property: Default connector property for the max bpc to be
1465 : * driven out of the connector.
1466 : */
1467 : struct drm_property *max_bpc_property;
1468 :
1469 : /** @privacy_screen: drm_privacy_screen for this connector, or NULL. */
1470 : struct drm_privacy_screen *privacy_screen;
1471 :
1472 : /** @privacy_screen_notifier: privacy-screen notifier_block */
1473 : struct notifier_block privacy_screen_notifier;
1474 :
1475 : /**
1476 : * @privacy_screen_sw_state_property: Optional atomic property for the
1477 : * connector to control the integrated privacy screen.
1478 : */
1479 : struct drm_property *privacy_screen_sw_state_property;
1480 :
1481 : /**
1482 : * @privacy_screen_hw_state_property: Optional atomic property for the
1483 : * connector to report the actual integrated privacy screen state.
1484 : */
1485 : struct drm_property *privacy_screen_hw_state_property;
1486 :
1487 : #define DRM_CONNECTOR_POLL_HPD (1 << 0)
1488 : #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
1489 : #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
1490 :
1491 : /**
1492 : * @polled:
1493 : *
1494 : * Connector polling mode, a combination of
1495 : *
1496 : * DRM_CONNECTOR_POLL_HPD
1497 : * The connector generates hotplug events and doesn't need to be
1498 : * periodically polled. The CONNECT and DISCONNECT flags must not
1499 : * be set together with the HPD flag.
1500 : *
1501 : * DRM_CONNECTOR_POLL_CONNECT
1502 : * Periodically poll the connector for connection.
1503 : *
1504 : * DRM_CONNECTOR_POLL_DISCONNECT
1505 : * Periodically poll the connector for disconnection, without
1506 : * causing flickering even when the connector is in use. DACs should
1507 : * rarely do this without a lot of testing.
1508 : *
1509 : * Set to 0 for connectors that don't support connection status
1510 : * discovery.
1511 : */
1512 : uint8_t polled;
1513 :
1514 : /**
1515 : * @dpms: Current dpms state. For legacy drivers the
1516 : * &drm_connector_funcs.dpms callback must update this. For atomic
1517 : * drivers, this is handled by the core atomic code, and drivers must
1518 : * only take &drm_crtc_state.active into account.
1519 : */
1520 : int dpms;
1521 :
1522 : /** @helper_private: mid-layer private data */
1523 : const struct drm_connector_helper_funcs *helper_private;
1524 :
1525 : /** @cmdline_mode: mode line parsed from the kernel cmdline for this connector */
1526 : struct drm_cmdline_mode cmdline_mode;
1527 : /** @force: a DRM_FORCE_<foo> state for forced mode sets */
1528 : enum drm_connector_force force;
1529 : /** @override_edid: has the EDID been overwritten through debugfs for testing? */
1530 : bool override_edid;
1531 : /** @epoch_counter: used to detect any other changes in connector, besides status */
1532 : u64 epoch_counter;
1533 :
1534 : /**
1535 : * @possible_encoders: Bit mask of encoders that can drive this
1536 : * connector, drm_encoder_index() determines the index into the bitfield
1537 : * and the bits are set with drm_connector_attach_encoder().
1538 : */
1539 : u32 possible_encoders;
1540 :
1541 : /**
1542 : * @encoder: Currently bound encoder driving this connector, if any.
1543 : * Only really meaningful for non-atomic drivers. Atomic drivers should
1544 : * instead look at &drm_connector_state.best_encoder, and in case they
1545 : * need the CRTC driving this output, &drm_connector_state.crtc.
1546 : */
1547 : struct drm_encoder *encoder;
1548 :
1549 : #define MAX_ELD_BYTES 128
1550 : /** @eld: EDID-like data, if present */
1551 : uint8_t eld[MAX_ELD_BYTES];
1552 : /** @latency_present: AV delay info from ELD, if found */
1553 : bool latency_present[2];
1554 : /**
1555 : * @video_latency: Video latency info from ELD, if found.
1556 : * [0]: progressive, [1]: interlaced
1557 : */
1558 : int video_latency[2];
1559 : /**
1560 : * @audio_latency: audio latency info from ELD, if found
1561 : * [0]: progressive, [1]: interlaced
1562 : */
1563 : int audio_latency[2];
1564 :
1565 : /**
1566 : * @ddc: associated ddc adapter.
1567 : * A connector usually has its associated ddc adapter. If a driver uses
1568 : * this field, then an appropriate symbolic link is created in connector
1569 : * sysfs directory to make it easy for the user to tell which i2c
1570 : * adapter is for a particular display.
1571 : *
1572 : * The field should be set by calling drm_connector_init_with_ddc().
1573 : */
1574 : struct i2c_adapter *ddc;
1575 :
1576 : /**
1577 : * @null_edid_counter: track sinks that give us all zeros for the EDID.
1578 : * Needed to workaround some HW bugs where we get all 0s
1579 : */
1580 : int null_edid_counter;
1581 :
1582 : /** @bad_edid_counter: track sinks that give us an EDID with invalid checksum */
1583 : unsigned bad_edid_counter;
1584 :
1585 : /**
1586 : * @edid_corrupt: Indicates whether the last read EDID was corrupt. Used
1587 : * in Displayport compliance testing - Displayport Link CTS Core 1.2
1588 : * rev1.1 4.2.2.6
1589 : */
1590 : bool edid_corrupt;
1591 : /**
1592 : * @real_edid_checksum: real edid checksum for corrupted edid block.
1593 : * Required in Displayport 1.4 compliance testing
1594 : * rev1.1 4.2.2.6
1595 : */
1596 : u8 real_edid_checksum;
1597 :
1598 : /** @debugfs_entry: debugfs directory for this connector */
1599 : struct dentry *debugfs_entry;
1600 :
1601 : /**
1602 : * @state:
1603 : *
1604 : * Current atomic state for this connector.
1605 : *
1606 : * This is protected by &drm_mode_config.connection_mutex. Note that
1607 : * nonblocking atomic commits access the current connector state without
1608 : * taking locks. Either by going through the &struct drm_atomic_state
1609 : * pointers, see for_each_oldnew_connector_in_state(),
1610 : * for_each_old_connector_in_state() and
1611 : * for_each_new_connector_in_state(). Or through careful ordering of
1612 : * atomic commit operations as implemented in the atomic helpers, see
1613 : * &struct drm_crtc_commit.
1614 : */
1615 : struct drm_connector_state *state;
1616 :
1617 : /* DisplayID bits. FIXME: Extract into a substruct? */
1618 :
1619 : /**
1620 : * @tile_blob_ptr:
1621 : *
1622 : * DRM blob property data for the tile property (used mostly by DP MST).
1623 : * This is meant for screens which are driven through separate display
1624 : * pipelines represented by &drm_crtc, which might not be running with
1625 : * genlocked clocks. For tiled panels which are genlocked, like
1626 : * dual-link LVDS or dual-link DSI, the driver should try to not expose
1627 : * the tiling and virtualize both &drm_crtc and &drm_plane if needed.
1628 : *
1629 : * This should only be updated by calling
1630 : * drm_connector_set_tile_property().
1631 : */
1632 : struct drm_property_blob *tile_blob_ptr;
1633 :
1634 : /** @has_tile: is this connector connected to a tiled monitor */
1635 : bool has_tile;
1636 : /** @tile_group: tile group for the connected monitor */
1637 : struct drm_tile_group *tile_group;
1638 : /** @tile_is_single_monitor: whether the tile is one monitor housing */
1639 : bool tile_is_single_monitor;
1640 :
1641 : /** @num_h_tile: number of horizontal tiles in the tile group */
1642 : /** @num_v_tile: number of vertical tiles in the tile group */
1643 : uint8_t num_h_tile, num_v_tile;
1644 : /** @tile_h_loc: horizontal location of this tile */
1645 : /** @tile_v_loc: vertical location of this tile */
1646 : uint8_t tile_h_loc, tile_v_loc;
1647 : /** @tile_h_size: horizontal size of this tile. */
1648 : /** @tile_v_size: vertical size of this tile. */
1649 : uint16_t tile_h_size, tile_v_size;
1650 :
1651 : /**
1652 : * @free_node:
1653 : *
1654 : * List used only by &drm_connector_list_iter to be able to clean up a
1655 : * connector from any context, in conjunction with
1656 : * &drm_mode_config.connector_free_work.
1657 : */
1658 : struct llist_node free_node;
1659 :
1660 : /** @hdr_sink_metadata: HDR Metadata Information read from sink */
1661 : struct hdr_sink_metadata hdr_sink_metadata;
1662 : };
1663 :
1664 : #define obj_to_connector(x) container_of(x, struct drm_connector, base)
1665 :
1666 : int drm_connector_init(struct drm_device *dev,
1667 : struct drm_connector *connector,
1668 : const struct drm_connector_funcs *funcs,
1669 : int connector_type);
1670 : int drm_connector_init_with_ddc(struct drm_device *dev,
1671 : struct drm_connector *connector,
1672 : const struct drm_connector_funcs *funcs,
1673 : int connector_type,
1674 : struct i2c_adapter *ddc);
1675 : void drm_connector_attach_edid_property(struct drm_connector *connector);
1676 : int drm_connector_register(struct drm_connector *connector);
1677 : void drm_connector_unregister(struct drm_connector *connector);
1678 : int drm_connector_attach_encoder(struct drm_connector *connector,
1679 : struct drm_encoder *encoder);
1680 :
1681 : void drm_connector_cleanup(struct drm_connector *connector);
1682 :
1683 : static inline unsigned int drm_connector_index(const struct drm_connector *connector)
1684 : {
1685 : return connector->index;
1686 : }
1687 :
1688 : static inline u32 drm_connector_mask(const struct drm_connector *connector)
1689 : {
1690 0 : return 1 << connector->index;
1691 : }
1692 :
1693 : /**
1694 : * drm_connector_lookup - lookup connector object
1695 : * @dev: DRM device
1696 : * @file_priv: drm file to check for lease against.
1697 : * @id: connector object id
1698 : *
1699 : * This function looks up the connector object specified by id
1700 : * add takes a reference to it.
1701 : */
1702 : static inline struct drm_connector *drm_connector_lookup(struct drm_device *dev,
1703 : struct drm_file *file_priv,
1704 : uint32_t id)
1705 : {
1706 : struct drm_mode_object *mo;
1707 0 : mo = drm_mode_object_find(dev, file_priv, id, DRM_MODE_OBJECT_CONNECTOR);
1708 0 : return mo ? obj_to_connector(mo) : NULL;
1709 : }
1710 :
1711 : /**
1712 : * drm_connector_get - acquire a connector reference
1713 : * @connector: DRM connector
1714 : *
1715 : * This function increments the connector's refcount.
1716 : */
1717 : static inline void drm_connector_get(struct drm_connector *connector)
1718 : {
1719 0 : drm_mode_object_get(&connector->base);
1720 : }
1721 :
1722 : /**
1723 : * drm_connector_put - release a connector reference
1724 : * @connector: DRM connector
1725 : *
1726 : * This function decrements the connector's reference count and frees the
1727 : * object if the reference count drops to zero.
1728 : */
1729 : static inline void drm_connector_put(struct drm_connector *connector)
1730 : {
1731 0 : drm_mode_object_put(&connector->base);
1732 : }
1733 :
1734 : /**
1735 : * drm_connector_is_unregistered - has the connector been unregistered from
1736 : * userspace?
1737 : * @connector: DRM connector
1738 : *
1739 : * Checks whether or not @connector has been unregistered from userspace.
1740 : *
1741 : * Returns:
1742 : * True if the connector was unregistered, false if the connector is
1743 : * registered or has not yet been registered with userspace.
1744 : */
1745 : static inline bool
1746 : drm_connector_is_unregistered(struct drm_connector *connector)
1747 : {
1748 0 : return READ_ONCE(connector->registration_state) ==
1749 : DRM_CONNECTOR_UNREGISTERED;
1750 : }
1751 :
1752 : void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode);
1753 : const char *drm_get_connector_type_name(unsigned int connector_type);
1754 : const char *drm_get_connector_status_name(enum drm_connector_status status);
1755 : const char *drm_get_subpixel_order_name(enum subpixel_order order);
1756 : const char *drm_get_dpms_name(int val);
1757 : const char *drm_get_dvi_i_subconnector_name(int val);
1758 : const char *drm_get_dvi_i_select_name(int val);
1759 : const char *drm_get_tv_subconnector_name(int val);
1760 : const char *drm_get_tv_select_name(int val);
1761 : const char *drm_get_dp_subconnector_name(int val);
1762 : const char *drm_get_content_protection_name(int val);
1763 : const char *drm_get_hdcp_content_type_name(int val);
1764 :
1765 : int drm_mode_create_dvi_i_properties(struct drm_device *dev);
1766 : void drm_connector_attach_dp_subconnector_property(struct drm_connector *connector);
1767 :
1768 : int drm_mode_create_tv_margin_properties(struct drm_device *dev);
1769 : int drm_mode_create_tv_properties(struct drm_device *dev,
1770 : unsigned int num_modes,
1771 : const char * const modes[]);
1772 : void drm_connector_attach_tv_margin_properties(struct drm_connector *conn);
1773 : int drm_mode_create_scaling_mode_property(struct drm_device *dev);
1774 : int drm_connector_attach_content_type_property(struct drm_connector *dev);
1775 : int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
1776 : u32 scaling_mode_mask);
1777 : int drm_connector_attach_vrr_capable_property(
1778 : struct drm_connector *connector);
1779 : int drm_connector_attach_colorspace_property(struct drm_connector *connector);
1780 : int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
1781 : bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
1782 : struct drm_connector_state *new_state);
1783 : int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
1784 : int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
1785 : int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
1786 : int drm_mode_create_content_type_property(struct drm_device *dev);
1787 : int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
1788 :
1789 : int drm_connector_set_path_property(struct drm_connector *connector,
1790 : const char *path);
1791 : int drm_connector_set_tile_property(struct drm_connector *connector);
1792 : int drm_connector_update_edid_property(struct drm_connector *connector,
1793 : const struct edid *edid);
1794 : void drm_connector_set_link_status_property(struct drm_connector *connector,
1795 : uint64_t link_status);
1796 : void drm_connector_set_vrr_capable_property(
1797 : struct drm_connector *connector, bool capable);
1798 : int drm_connector_set_panel_orientation(
1799 : struct drm_connector *connector,
1800 : enum drm_panel_orientation panel_orientation);
1801 : int drm_connector_set_panel_orientation_with_quirk(
1802 : struct drm_connector *connector,
1803 : enum drm_panel_orientation panel_orientation,
1804 : int width, int height);
1805 : int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
1806 : int min, int max);
1807 : void drm_connector_create_privacy_screen_properties(struct drm_connector *conn);
1808 : void drm_connector_attach_privacy_screen_properties(struct drm_connector *conn);
1809 : void drm_connector_attach_privacy_screen_provider(
1810 : struct drm_connector *connector, struct drm_privacy_screen *priv);
1811 : void drm_connector_update_privacy_screen(const struct drm_connector_state *connector_state);
1812 :
1813 : /**
1814 : * struct drm_tile_group - Tile group metadata
1815 : * @refcount: reference count
1816 : * @dev: DRM device
1817 : * @id: tile group id exposed to userspace
1818 : * @group_data: Sink-private data identifying this group
1819 : *
1820 : * @group_data corresponds to displayid vend/prod/serial for external screens
1821 : * with an EDID.
1822 : */
1823 : struct drm_tile_group {
1824 : struct kref refcount;
1825 : struct drm_device *dev;
1826 : int id;
1827 : u8 group_data[8];
1828 : };
1829 :
1830 : struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
1831 : const char topology[8]);
1832 : struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
1833 : const char topology[8]);
1834 : void drm_mode_put_tile_group(struct drm_device *dev,
1835 : struct drm_tile_group *tg);
1836 :
1837 : /**
1838 : * struct drm_connector_list_iter - connector_list iterator
1839 : *
1840 : * This iterator tracks state needed to be able to walk the connector_list
1841 : * within struct drm_mode_config. Only use together with
1842 : * drm_connector_list_iter_begin(), drm_connector_list_iter_end() and
1843 : * drm_connector_list_iter_next() respectively the convenience macro
1844 : * drm_for_each_connector_iter().
1845 : *
1846 : * Note that the return value of drm_connector_list_iter_next() is only valid
1847 : * up to the next drm_connector_list_iter_next() or
1848 : * drm_connector_list_iter_end() call. If you want to use the connector later,
1849 : * then you need to grab your own reference first using drm_connector_get().
1850 : */
1851 : struct drm_connector_list_iter {
1852 : /* private: */
1853 : struct drm_device *dev;
1854 : struct drm_connector *conn;
1855 : };
1856 :
1857 : void drm_connector_list_iter_begin(struct drm_device *dev,
1858 : struct drm_connector_list_iter *iter);
1859 : struct drm_connector *
1860 : drm_connector_list_iter_next(struct drm_connector_list_iter *iter);
1861 : void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
1862 :
1863 : bool drm_connector_has_possible_encoder(struct drm_connector *connector,
1864 : struct drm_encoder *encoder);
1865 :
1866 : /**
1867 : * drm_for_each_connector_iter - connector_list iterator macro
1868 : * @connector: &struct drm_connector pointer used as cursor
1869 : * @iter: &struct drm_connector_list_iter
1870 : *
1871 : * Note that @connector is only valid within the list body, if you want to use
1872 : * @connector after calling drm_connector_list_iter_end() then you need to grab
1873 : * your own reference first using drm_connector_get().
1874 : */
1875 : #define drm_for_each_connector_iter(connector, iter) \
1876 : while ((connector = drm_connector_list_iter_next(iter)))
1877 :
1878 : /**
1879 : * drm_connector_for_each_possible_encoder - iterate connector's possible encoders
1880 : * @connector: &struct drm_connector pointer
1881 : * @encoder: &struct drm_encoder pointer used as cursor
1882 : */
1883 : #define drm_connector_for_each_possible_encoder(connector, encoder) \
1884 : drm_for_each_encoder_mask(encoder, (connector)->dev, \
1885 : (connector)->possible_encoders)
1886 :
1887 : #endif
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