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Daniel Vetter52217192016-08-12 22:48:50 +02001/*
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>
Daniel Vetterea497bb2017-12-13 13:49:36 +010027#include <linux/llist.h>
Daniel Vetter52217192016-08-12 22:48:50 +020028#include <linux/ctype.h>
Maarten Lankhorst0e9f25d2017-05-01 15:37:53 +020029#include <linux/hdmi.h>
Daniel Vetter949619f2016-08-29 10:27:51 +020030#include <drm/drm_mode_object.h>
Daniel Vetterd78aa652018-09-05 15:57:05 +020031#include <drm/drm_util.h>
Daniel Vetter52217192016-08-12 22:48:50 +020032
Daniel Vetter199e4e92016-08-31 18:09:05 +020033#include <uapi/drm/drm_mode.h>
34
Daniel Vetter52217192016-08-12 22:48:50 +020035struct drm_connector_helper_funcs;
Maarten Lankhorst6c5ed5a2017-04-06 20:55:20 +020036struct drm_modeset_acquire_ctx;
Daniel Vetter52217192016-08-12 22:48:50 +020037struct drm_device;
38struct drm_crtc;
39struct drm_encoder;
40struct drm_property;
41struct drm_property_blob;
Rob Clarkfceffb322016-11-05 11:08:09 -040042struct drm_printer;
Daniel Vetter52217192016-08-12 22:48:50 +020043struct edid;
44
45enum drm_connector_force {
46 DRM_FORCE_UNSPECIFIED,
47 DRM_FORCE_OFF,
48 DRM_FORCE_ON, /* force on analog part normally */
49 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
50};
51
Daniel Vetterae2a6da2016-08-12 22:48:53 +020052/**
53 * enum drm_connector_status - status for a &drm_connector
54 *
55 * This enum is used to track the connector status. There are no separate
56 * #defines for the uapi!
57 */
Daniel Vetter52217192016-08-12 22:48:50 +020058enum drm_connector_status {
Daniel Vetterae2a6da2016-08-12 22:48:53 +020059 /**
60 * @connector_status_connected: The connector is definitely connected to
61 * a sink device, and can be enabled.
62 */
Daniel Vetter52217192016-08-12 22:48:50 +020063 connector_status_connected = 1,
Daniel Vetterae2a6da2016-08-12 22:48:53 +020064 /**
65 * @connector_status_disconnected: The connector isn't connected to a
66 * sink device which can be autodetect. For digital outputs like DP or
67 * HDMI (which can be realiable probed) this means there's really
68 * nothing there. It is driver-dependent whether a connector with this
69 * status can be lit up or not.
70 */
Daniel Vetter52217192016-08-12 22:48:50 +020071 connector_status_disconnected = 2,
Daniel Vetterae2a6da2016-08-12 22:48:53 +020072 /**
73 * @connector_status_unknown: The connector's status could not be
74 * reliably detected. This happens when probing would either cause
75 * flicker (like load-detection when the connector is in use), or when a
76 * hardware resource isn't available (like when load-detection needs a
77 * free CRTC). It should be possible to light up the connector with one
78 * of the listed fallback modes. For default configuration userspace
79 * should only try to light up connectors with unknown status when
80 * there's not connector with @connector_status_connected.
81 */
Daniel Vetter52217192016-08-12 22:48:50 +020082 connector_status_unknown = 3,
83};
84
Lyude Paul39b50c62018-10-16 16:39:46 -040085/**
86 * enum drm_connector_registration_status - userspace registration status for
87 * a &drm_connector
88 *
89 * This enum is used to track the status of initializing a connector and
90 * registering it with userspace, so that DRM can prevent bogus modesets on
91 * connectors that no longer exist.
92 */
93enum drm_connector_registration_state {
94 /**
95 * @DRM_CONNECTOR_INITIALIZING: The connector has just been created,
96 * but has yet to be exposed to userspace. There should be no
97 * additional restrictions to how the state of this connector may be
98 * modified.
99 */
100 DRM_CONNECTOR_INITIALIZING = 0,
101
102 /**
103 * @DRM_CONNECTOR_REGISTERED: The connector has been fully initialized
104 * and registered with sysfs, as such it has been exposed to
105 * userspace. There should be no additional restrictions to how the
106 * state of this connector may be modified.
107 */
108 DRM_CONNECTOR_REGISTERED = 1,
109
110 /**
111 * @DRM_CONNECTOR_UNREGISTERED: The connector has either been exposed
112 * to userspace and has since been unregistered and removed from
113 * userspace, or the connector was unregistered before it had a chance
114 * to be exposed to userspace (e.g. still in the
115 * @DRM_CONNECTOR_INITIALIZING state). When a connector is
116 * unregistered, there are additional restrictions to how its state
117 * may be modified:
118 *
119 * - An unregistered connector may only have its DPMS changed from
120 * On->Off. Once DPMS is changed to Off, it may not be switched back
121 * to On.
122 * - Modesets are not allowed on unregistered connectors, unless they
123 * would result in disabling its assigned CRTCs. This means
124 * disabling a CRTC on an unregistered connector is OK, but enabling
125 * one is not.
126 * - Removing a CRTC from an unregistered connector is OK, but new
127 * CRTCs may never be assigned to an unregistered connector.
128 */
129 DRM_CONNECTOR_UNREGISTERED = 2,
130};
131
Daniel Vetter52217192016-08-12 22:48:50 +0200132enum subpixel_order {
133 SubPixelUnknown = 0,
134 SubPixelHorizontalRGB,
135 SubPixelHorizontalBGR,
136 SubPixelVerticalRGB,
137 SubPixelVerticalBGR,
138 SubPixelNone,
Shashank Sharmaafa1c762017-03-13 16:54:01 +0530139
140};
141
Shashank Sharma62c58af2017-03-13 16:54:02 +0530142/**
143 * struct drm_scrambling: sink's scrambling support.
144 */
145struct drm_scrambling {
146 /**
147 * @supported: scrambling supported for rates > 340 Mhz.
148 */
149 bool supported;
150 /**
151 * @low_rates: scrambling supported for rates <= 340 Mhz.
152 */
153 bool low_rates;
154};
155
Shashank Sharmaafa1c762017-03-13 16:54:01 +0530156/*
157 * struct drm_scdc - Information about scdc capabilities of a HDMI 2.0 sink
158 *
159 * Provides SCDC register support and capabilities related information on a
160 * HDMI 2.0 sink. In case of a HDMI 1.4 sink, all parameter must be 0.
161 */
162struct drm_scdc {
163 /**
164 * @supported: status control & data channel present.
165 */
166 bool supported;
167 /**
168 * @read_request: sink is capable of generating scdc read request.
169 */
170 bool read_request;
Shashank Sharma62c58af2017-03-13 16:54:02 +0530171 /**
172 * @scrambling: sink's scrambling capabilities
173 */
174 struct drm_scrambling scrambling;
Shashank Sharmaafa1c762017-03-13 16:54:01 +0530175};
176
Shashank Sharma62c58af2017-03-13 16:54:02 +0530177
Shashank Sharmaafa1c762017-03-13 16:54:01 +0530178/**
179 * struct drm_hdmi_info - runtime information about the connected HDMI sink
180 *
181 * Describes if a given display supports advanced HDMI 2.0 features.
182 * This information is available in CEA-861-F extension blocks (like HF-VSDB).
183 */
184struct drm_hdmi_info {
Shashank Sharma86cc9212017-03-28 10:06:19 +0300185 /** @scdc: sink's scdc support and capabilities */
Shashank Sharmaafa1c762017-03-13 16:54:01 +0530186 struct drm_scdc scdc;
Shashank Sharmad8523152017-07-13 21:03:11 +0530187
188 /**
189 * @y420_vdb_modes: bitmap of modes which can support ycbcr420
190 * output only (not normal RGB/YCBCR444/422 outputs). There are total
191 * 107 VICs defined by CEA-861-F spec, so the size is 128 bits to map
192 * upto 128 VICs;
193 */
194 unsigned long y420_vdb_modes[BITS_TO_LONGS(128)];
Shashank Sharma832d4f22017-07-14 16:03:46 +0530195
196 /**
197 * @y420_cmdb_modes: bitmap of modes which can support ycbcr420
198 * output also, along with normal HDMI outputs. There are total 107
199 * VICs defined by CEA-861-F spec, so the size is 128 bits to map upto
200 * 128 VICs;
201 */
202 unsigned long y420_cmdb_modes[BITS_TO_LONGS(128)];
203
204 /** @y420_cmdb_map: bitmap of SVD index, to extraxt vcb modes */
205 u64 y420_cmdb_map;
Shashank Sharmae6a9a2c32017-07-13 21:03:13 +0530206
207 /** @y420_dc_modes: bitmap of deep color support index */
208 u8 y420_dc_modes;
Daniel Vetter52217192016-08-12 22:48:50 +0200209};
210
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200211/**
Manasi Navare40ee6fb2016-12-16 12:29:06 +0200212 * enum drm_link_status - connector's link_status property value
213 *
214 * This enum is used as the connector's link status property value.
215 * It is set to the values defined in uapi.
Manasi Navare41232c12017-03-01 06:45:10 -0800216 *
217 * @DRM_LINK_STATUS_GOOD: DP Link is Good as a result of successful
218 * link training
219 * @DRM_LINK_STATUS_BAD: DP Link is BAD as a result of link training
220 * failure
Manasi Navare40ee6fb2016-12-16 12:29:06 +0200221 */
222enum drm_link_status {
223 DRM_LINK_STATUS_GOOD = DRM_MODE_LINK_STATUS_GOOD,
224 DRM_LINK_STATUS_BAD = DRM_MODE_LINK_STATUS_BAD,
225};
226
227/**
Hans de Goede8d70f392017-11-25 20:35:49 +0100228 * enum drm_panel_orientation - panel_orientation info for &drm_display_info
229 *
230 * This enum is used to track the (LCD) panel orientation. There are no
231 * separate #defines for the uapi!
232 *
233 * @DRM_MODE_PANEL_ORIENTATION_UNKNOWN: The drm driver has not provided any
234 * panel orientation information (normal
235 * for non panels) in this case the "panel
236 * orientation" connector prop will not be
237 * attached.
238 * @DRM_MODE_PANEL_ORIENTATION_NORMAL: The top side of the panel matches the
239 * top side of the device's casing.
240 * @DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: The top side of the panel matches the
241 * bottom side of the device's casing, iow
242 * the panel is mounted upside-down.
243 * @DRM_MODE_PANEL_ORIENTATION_LEFT_UP: The left side of the panel matches the
244 * top side of the device's casing.
245 * @DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: The right side of the panel matches the
246 * top side of the device's casing.
247 */
248enum drm_panel_orientation {
249 DRM_MODE_PANEL_ORIENTATION_UNKNOWN = -1,
250 DRM_MODE_PANEL_ORIENTATION_NORMAL = 0,
251 DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP,
252 DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
253 DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
254};
255
256/**
Laurent Pincharta0970e82019-01-12 02:42:39 +0200257 * enum drm_bus_flags - bus_flags info for &drm_display_info
258 *
259 * This enum defines signal polarities and clock edge information for signals on
260 * a bus as bitmask flags.
261 *
262 * The clock edge information is conveyed by two sets of symbols,
263 * DRM_BUS_FLAGS_*_DRIVE_\* and DRM_BUS_FLAGS_*_SAMPLE_\*. When this enum is
264 * used to describe a bus from the point of view of the transmitter, the
265 * \*_DRIVE_\* flags should be used. When used from the point of view of the
266 * receiver, the \*_SAMPLE_\* flags should be used. The \*_DRIVE_\* and
267 * \*_SAMPLE_\* flags alias each other, with the \*_SAMPLE_POSEDGE and
268 * \*_SAMPLE_NEGEDGE flags being equal to \*_DRIVE_NEGEDGE and \*_DRIVE_POSEDGE
269 * respectively. This simplifies code as signals are usually sampled on the
270 * opposite edge of the driving edge. Transmitters and receivers may however
271 * need to take other signal timings into account to convert between driving
272 * and sample edges.
273 *
274 * @DRM_BUS_FLAG_DE_LOW: The Data Enable signal is active low
275 * @DRM_BUS_FLAG_DE_HIGH: The Data Enable signal is active high
276 * @DRM_BUS_FLAG_PIXDATA_POSEDGE: Legacy value, do not use
277 * @DRM_BUS_FLAG_PIXDATA_NEGEDGE: Legacy value, do not use
278 * @DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE: Data is driven on the rising edge of
279 * the pixel clock
280 * @DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE: Data is driven on the falling edge of
281 * the pixel clock
282 * @DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE: Data is sampled on the rising edge of
283 * the pixel clock
284 * @DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE: Data is sampled on the falling edge of
285 * the pixel clock
286 * @DRM_BUS_FLAG_DATA_MSB_TO_LSB: Data is transmitted MSB to LSB on the bus
287 * @DRM_BUS_FLAG_DATA_LSB_TO_MSB: Data is transmitted LSB to MSB on the bus
288 * @DRM_BUS_FLAG_SYNC_POSEDGE: Legacy value, do not use
289 * @DRM_BUS_FLAG_SYNC_NEGEDGE: Legacy value, do not use
290 * @DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE: Sync signals are driven on the rising
291 * edge of the pixel clock
292 * @DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE: Sync signals are driven on the falling
293 * edge of the pixel clock
294 * @DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE: Sync signals are sampled on the rising
295 * edge of the pixel clock
296 * @DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE: Sync signals are sampled on the falling
297 * edge of the pixel clock
298 */
299enum drm_bus_flags {
300 DRM_BUS_FLAG_DE_LOW = BIT(0),
301 DRM_BUS_FLAG_DE_HIGH = BIT(1),
302 DRM_BUS_FLAG_PIXDATA_POSEDGE = BIT(2),
303 DRM_BUS_FLAG_PIXDATA_NEGEDGE = BIT(3),
304 DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE = DRM_BUS_FLAG_PIXDATA_POSEDGE,
305 DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE = DRM_BUS_FLAG_PIXDATA_NEGEDGE,
306 DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE = DRM_BUS_FLAG_PIXDATA_NEGEDGE,
307 DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE = DRM_BUS_FLAG_PIXDATA_POSEDGE,
308 DRM_BUS_FLAG_DATA_MSB_TO_LSB = BIT(4),
309 DRM_BUS_FLAG_DATA_LSB_TO_MSB = BIT(5),
310 DRM_BUS_FLAG_SYNC_POSEDGE = BIT(6),
311 DRM_BUS_FLAG_SYNC_NEGEDGE = BIT(7),
312 DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE = DRM_BUS_FLAG_SYNC_POSEDGE,
313 DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE = DRM_BUS_FLAG_SYNC_NEGEDGE,
314 DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE = DRM_BUS_FLAG_SYNC_NEGEDGE,
315 DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE = DRM_BUS_FLAG_SYNC_POSEDGE,
316};
317
318/**
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200319 * struct drm_display_info - runtime data about the connected sink
320 *
321 * Describes a given display (e.g. CRT or flat panel) and its limitations. For
322 * fixed display sinks like built-in panels there's not much difference between
Daniel Vetterea0dd852016-12-29 21:48:26 +0100323 * this and &struct drm_connector. But for sinks with a real cable this
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200324 * structure is meant to describe all the things at the other end of the cable.
325 *
326 * For sinks which provide an EDID this can be filled out by calling
327 * drm_add_edid_modes().
Daniel Vetter52217192016-08-12 22:48:50 +0200328 */
329struct drm_display_info {
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200330 /**
331 * @name: Name of the display.
332 */
Daniel Vetter52217192016-08-12 22:48:50 +0200333 char name[DRM_DISPLAY_INFO_LEN];
334
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200335 /**
336 * @width_mm: Physical width in mm.
337 */
Daniel Vetter52217192016-08-12 22:48:50 +0200338 unsigned int width_mm;
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200339 /**
340 * @height_mm: Physical height in mm.
341 */
Daniel Vetter52217192016-08-12 22:48:50 +0200342 unsigned int height_mm;
343
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200344 /**
345 * @pixel_clock: Maximum pixel clock supported by the sink, in units of
Peter Meerwald-Stadler188f78822016-12-16 14:24:23 +0100346 * 100Hz. This mismatches the clock in &drm_display_mode (which is in
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200347 * kHZ), because that's what the EDID uses as base unit.
348 */
Daniel Vetter52217192016-08-12 22:48:50 +0200349 unsigned int pixel_clock;
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200350 /**
351 * @bpc: Maximum bits per color channel. Used by HDMI and DP outputs.
352 */
Daniel Vetter52217192016-08-12 22:48:50 +0200353 unsigned int bpc;
354
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200355 /**
356 * @subpixel_order: Subpixel order of LCD panels.
357 */
Daniel Vetter52217192016-08-12 22:48:50 +0200358 enum subpixel_order subpixel_order;
359
360#define DRM_COLOR_FORMAT_RGB444 (1<<0)
361#define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
362#define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
Shashank Sharma832d4f22017-07-14 16:03:46 +0530363#define DRM_COLOR_FORMAT_YCRCB420 (1<<3)
Daniel Vetter52217192016-08-12 22:48:50 +0200364
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200365 /**
Hans de Goede8d70f392017-11-25 20:35:49 +0100366 * @panel_orientation: Read only connector property for built-in panels,
367 * indicating the orientation of the panel vs the device's casing.
368 * drm_connector_init() sets this to DRM_MODE_PANEL_ORIENTATION_UNKNOWN.
369 * When not UNKNOWN this gets used by the drm_fb_helpers to rotate the
370 * fb to compensate and gets exported as prop to userspace.
371 */
372 int panel_orientation;
373
374 /**
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200375 * @color_formats: HDMI Color formats, selects between RGB and YCrCb
376 * modes. Used DRM_COLOR_FORMAT\_ defines, which are _not_ the same ones
377 * as used to describe the pixel format in framebuffers, and also don't
378 * match the formats in @bus_formats which are shared with v4l.
379 */
Daniel Vetter52217192016-08-12 22:48:50 +0200380 u32 color_formats;
381
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200382 /**
383 * @bus_formats: Pixel data format on the wire, somewhat redundant with
384 * @color_formats. Array of size @num_bus_formats encoded using
385 * MEDIA_BUS_FMT\_ defines shared with v4l and media drivers.
386 */
Daniel Vetter52217192016-08-12 22:48:50 +0200387 const u32 *bus_formats;
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200388 /**
389 * @num_bus_formats: Size of @bus_formats array.
390 */
Daniel Vetter52217192016-08-12 22:48:50 +0200391 unsigned int num_bus_formats;
392
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200393 /**
394 * @bus_flags: Additional information (like pixel signal polarity) for
Laurent Pincharta0970e82019-01-12 02:42:39 +0200395 * the pixel data on the bus, using &enum drm_bus_flags values
396 * DRM_BUS_FLAGS\_.
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200397 */
Daniel Vetter52217192016-08-12 22:48:50 +0200398 u32 bus_flags;
399
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200400 /**
Ville Syrjälä2a272ca2016-09-28 16:51:37 +0300401 * @max_tmds_clock: Maximum TMDS clock rate supported by the
402 * sink in kHz. 0 means undefined.
403 */
404 int max_tmds_clock;
405
406 /**
407 * @dvi_dual: Dual-link DVI sink?
408 */
409 bool dvi_dual;
410
411 /**
Ville Syrjäläf1781e92017-11-13 19:04:19 +0200412 * @has_hdmi_infoframe: Does the sink support the HDMI infoframe?
413 */
414 bool has_hdmi_infoframe;
415
416 /**
Ville Syrjälä1581b2d2019-01-08 19:28:28 +0200417 * @rgb_quant_range_selectable: Does the sink support selecting
418 * the RGB quantization range?
419 */
420 bool rgb_quant_range_selectable;
421
422 /**
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200423 * @edid_hdmi_dc_modes: Mask of supported hdmi deep color modes. Even
424 * more stuff redundant with @bus_formats.
425 */
Daniel Vetter52217192016-08-12 22:48:50 +0200426 u8 edid_hdmi_dc_modes;
427
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200428 /**
429 * @cea_rev: CEA revision of the HDMI sink.
430 */
Daniel Vetter52217192016-08-12 22:48:50 +0200431 u8 cea_rev;
Shashank Sharmaafa1c762017-03-13 16:54:01 +0530432
433 /**
434 * @hdmi: advance features of a HDMI sink.
435 */
436 struct drm_hdmi_info hdmi;
Dave Airlie66660d42017-10-16 05:08:09 +0100437
438 /**
439 * @non_desktop: Non desktop display (HMD).
440 */
441 bool non_desktop;
Daniel Vetter52217192016-08-12 22:48:50 +0200442};
443
Daniel Vetterb3c6c8b2016-08-12 22:48:55 +0200444int drm_display_info_set_bus_formats(struct drm_display_info *info,
445 const u32 *formats,
446 unsigned int num_formats);
447
Daniel Vetter52217192016-08-12 22:48:50 +0200448/**
Boris Brezillon299a16b2016-12-02 14:48:09 +0100449 * struct drm_tv_connector_state - TV connector related states
450 * @subconnector: selected subconnector
Boris Brezillon56406e12018-12-06 15:24:36 +0100451 * @margins: margins (all margins are expressed in pixels)
Jani Nikula07d85292018-02-19 12:40:09 +0200452 * @margins.left: left margin
453 * @margins.right: right margin
454 * @margins.top: top margin
455 * @margins.bottom: bottom margin
Boris Brezillon299a16b2016-12-02 14:48:09 +0100456 * @mode: TV mode
457 * @brightness: brightness in percent
458 * @contrast: contrast in percent
459 * @flicker_reduction: flicker reduction in percent
460 * @overscan: overscan in percent
461 * @saturation: saturation in percent
462 * @hue: hue in percent
463 */
464struct drm_tv_connector_state {
465 enum drm_mode_subconnector subconnector;
466 struct {
467 unsigned int left;
468 unsigned int right;
469 unsigned int top;
470 unsigned int bottom;
471 } margins;
472 unsigned int mode;
473 unsigned int brightness;
474 unsigned int contrast;
475 unsigned int flicker_reduction;
476 unsigned int overscan;
477 unsigned int saturation;
478 unsigned int hue;
479};
480
481/**
Daniel Vetter52217192016-08-12 22:48:50 +0200482 * struct drm_connector_state - mutable connector state
Daniel Vetter52217192016-08-12 22:48:50 +0200483 */
484struct drm_connector_state {
Daniel Vetteraab999a2018-07-09 10:40:04 +0200485 /** @connector: backpointer to the connector */
Daniel Vetter52217192016-08-12 22:48:50 +0200486 struct drm_connector *connector;
487
Daniel Vetterafb21ea62016-08-31 18:09:04 +0200488 /**
489 * @crtc: CRTC to connect connector to, NULL if disabled.
490 *
491 * Do not change this directly, use drm_atomic_set_crtc_for_connector()
492 * instead.
493 */
494 struct drm_crtc *crtc;
Daniel Vetter52217192016-08-12 22:48:50 +0200495
Daniel Vetteraab999a2018-07-09 10:40:04 +0200496 /**
497 * @best_encoder:
498 *
499 * Used by the atomic helpers to select the encoder, through the
500 * &drm_connector_helper_funcs.atomic_best_encoder or
501 * &drm_connector_helper_funcs.best_encoder callbacks.
502 */
Daniel Vetter52217192016-08-12 22:48:50 +0200503 struct drm_encoder *best_encoder;
504
Manasi Navare40ee6fb2016-12-16 12:29:06 +0200505 /**
506 * @link_status: Connector link_status to keep track of whether link is
507 * GOOD or BAD to notify userspace if retraining is necessary.
508 */
509 enum drm_link_status link_status;
510
Daniel Vetteraab999a2018-07-09 10:40:04 +0200511 /** @state: backpointer to global drm_atomic_state */
Daniel Vetter52217192016-08-12 22:48:50 +0200512 struct drm_atomic_state *state;
Boris Brezillon299a16b2016-12-02 14:48:09 +0100513
Maarten Lankhorst21a01ab2017-09-04 12:48:37 +0200514 /**
515 * @commit: Tracks the pending commit to prevent use-after-free conditions.
516 *
517 * Is only set when @crtc is NULL.
518 */
519 struct drm_crtc_commit *commit;
520
Daniel Vetteraab999a2018-07-09 10:40:04 +0200521 /** @tv: TV connector state */
Boris Brezillon299a16b2016-12-02 14:48:09 +0100522 struct drm_tv_connector_state tv;
Maarten Lankhorst0e9f25d2017-05-01 15:37:53 +0200523
524 /**
525 * @picture_aspect_ratio: Connector property to control the
526 * HDMI infoframe aspect ratio setting.
527 *
Maarten Lankhorst8f6e1e22017-05-01 15:37:54 +0200528 * The %DRM_MODE_PICTURE_ASPECT_\* values much match the
Maarten Lankhorst0e9f25d2017-05-01 15:37:53 +0200529 * values for &enum hdmi_picture_aspect
530 */
531 enum hdmi_picture_aspect picture_aspect_ratio;
Maarten Lankhorst8f6e1e22017-05-01 15:37:54 +0200532
533 /**
Stanislav Lisovskiy50525c32018-05-15 16:59:27 +0300534 * @content_type: Connector property to control the
535 * HDMI infoframe content type setting.
536 * The %DRM_MODE_CONTENT_TYPE_\* values much
537 * match the values.
538 */
539 unsigned int content_type;
540
541 /**
Maarten Lankhorst8f6e1e22017-05-01 15:37:54 +0200542 * @scaling_mode: Connector property to control the
543 * upscaling, mostly used for built-in panels.
544 */
545 unsigned int scaling_mode;
Sean Paul24557862018-01-08 14:55:37 -0500546
547 /**
548 * @content_protection: Connector property to request content
549 * protection. This is most commonly used for HDCP.
550 */
551 unsigned int content_protection;
Brian Starkey935774c2017-03-29 17:42:32 +0100552
553 /**
554 * @writeback_job: Writeback job for writeback connectors
555 *
Brian Starkeyb13cc8d2017-03-29 17:42:33 +0100556 * Holds the framebuffer and out-fence for a writeback connector. As
557 * the writeback completion may be asynchronous to the normal commit
558 * cycle, the writeback job lifetime is managed separately from the
559 * normal atomic state by this object.
Brian Starkey935774c2017-03-29 17:42:32 +0100560 *
561 * See also: drm_writeback_queue_job() and
562 * drm_writeback_signal_completion()
563 */
564 struct drm_writeback_job *writeback_job;
Radhakrishna Sripada47e22ff2018-10-12 11:42:32 -0700565
566 /**
567 * @max_requested_bpc: Connector property to limit the maximum bit
568 * depth of the pixels.
569 */
570 u8 max_requested_bpc;
571
572 /**
573 * @max_bpc: Connector max_bpc based on the requested max_bpc property
574 * and the connector bpc limitations obtained from edid.
575 */
576 u8 max_bpc;
Daniel Vetter52217192016-08-12 22:48:50 +0200577};
578
579/**
580 * struct drm_connector_funcs - control connectors on a given device
581 *
582 * Each CRTC may have one or more connectors attached to it. The functions
583 * below allow the core DRM code to control connectors, enumerate available modes,
584 * etc.
585 */
586struct drm_connector_funcs {
587 /**
588 * @dpms:
589 *
590 * Legacy entry point to set the per-connector DPMS state. Legacy DPMS
591 * is exposed as a standard property on the connector, but diverted to
592 * this callback in the drm core. Note that atomic drivers don't
593 * implement the 4 level DPMS support on the connector any more, but
594 * instead only have an on/off "ACTIVE" property on the CRTC object.
595 *
Daniel Vetter144a7992017-07-25 14:02:04 +0200596 * This hook is not used by atomic drivers, remapping of the legacy DPMS
597 * property is entirely handled in the DRM core.
Daniel Vetter52217192016-08-12 22:48:50 +0200598 *
599 * RETURNS:
600 *
601 * 0 on success or a negative error code on failure.
602 */
603 int (*dpms)(struct drm_connector *connector, int mode);
604
605 /**
606 * @reset:
607 *
608 * Reset connector hardware and software state to off. This function isn't
609 * called by the core directly, only through drm_mode_config_reset().
610 * It's not a helper hook only for historical reasons.
611 *
612 * Atomic drivers can use drm_atomic_helper_connector_reset() to reset
613 * atomic state using this hook.
614 */
615 void (*reset)(struct drm_connector *connector);
616
617 /**
618 * @detect:
619 *
620 * Check to see if anything is attached to the connector. The parameter
621 * force is set to false whilst polling, true when checking the
622 * connector due to a user request. force can be used by the driver to
623 * avoid expensive, destructive operations during automated probing.
624 *
Laurent Pinchart949f0882016-11-29 22:56:30 +0200625 * This callback is optional, if not implemented the connector will be
626 * considered as always being attached.
627 *
Daniel Vetter52217192016-08-12 22:48:50 +0200628 * FIXME:
629 *
630 * Note that this hook is only called by the probe helper. It's not in
631 * the helper library vtable purely for historical reasons. The only DRM
632 * core entry point to probe connector state is @fill_modes.
633 *
Maarten Lankhorst6c5ed5a2017-04-06 20:55:20 +0200634 * Note that the helper library will already hold
635 * &drm_mode_config.connection_mutex. Drivers which need to grab additional
636 * locks to avoid races with concurrent modeset changes need to use
637 * &drm_connector_helper_funcs.detect_ctx instead.
638 *
Daniel Vetter52217192016-08-12 22:48:50 +0200639 * RETURNS:
640 *
641 * drm_connector_status indicating the connector's status.
642 */
643 enum drm_connector_status (*detect)(struct drm_connector *connector,
644 bool force);
645
646 /**
647 * @force:
648 *
649 * This function is called to update internal encoder state when the
650 * connector is forced to a certain state by userspace, either through
651 * the sysfs interfaces or on the kernel cmdline. In that case the
652 * @detect callback isn't called.
653 *
654 * FIXME:
655 *
656 * Note that this hook is only called by the probe helper. It's not in
657 * the helper library vtable purely for historical reasons. The only DRM
658 * core entry point to probe connector state is @fill_modes.
659 */
660 void (*force)(struct drm_connector *connector);
661
662 /**
663 * @fill_modes:
664 *
665 * Entry point for output detection and basic mode validation. The
666 * driver should reprobe the output if needed (e.g. when hotplug
Daniel Vetterd5745282017-01-25 07:26:45 +0100667 * handling is unreliable), add all detected modes to &drm_connector.modes
Daniel Vetter52217192016-08-12 22:48:50 +0200668 * and filter out any the device can't support in any configuration. It
669 * also needs to filter out any modes wider or higher than the
670 * parameters max_width and max_height indicate.
671 *
672 * The drivers must also prune any modes no longer valid from
Daniel Vetterd5745282017-01-25 07:26:45 +0100673 * &drm_connector.modes. Furthermore it must update
674 * &drm_connector.status and &drm_connector.edid. If no EDID has been
675 * received for this output connector->edid must be NULL.
Daniel Vetter52217192016-08-12 22:48:50 +0200676 *
677 * Drivers using the probe helpers should use
Daniel Vetter92e1d262018-07-09 10:40:05 +0200678 * drm_helper_probe_single_connector_modes() to implement this
Daniel Vetter52217192016-08-12 22:48:50 +0200679 * function.
680 *
681 * RETURNS:
682 *
Daniel Vetterd5745282017-01-25 07:26:45 +0100683 * The number of modes detected and filled into &drm_connector.modes.
Daniel Vetter52217192016-08-12 22:48:50 +0200684 */
685 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
686
687 /**
688 * @set_property:
689 *
690 * This is the legacy entry point to update a property attached to the
691 * connector.
692 *
Daniel Vetter52217192016-08-12 22:48:50 +0200693 * This callback is optional if the driver does not support any legacy
Daniel Vetter144a7992017-07-25 14:02:04 +0200694 * driver-private properties. For atomic drivers it is not used because
695 * property handling is done entirely in the DRM core.
Daniel Vetter52217192016-08-12 22:48:50 +0200696 *
697 * RETURNS:
698 *
699 * 0 on success or a negative error code on failure.
700 */
701 int (*set_property)(struct drm_connector *connector, struct drm_property *property,
702 uint64_t val);
703
704 /**
705 * @late_register:
706 *
707 * This optional hook can be used to register additional userspace
708 * interfaces attached to the connector, light backlight control, i2c,
709 * DP aux or similar interfaces. It is called late in the driver load
710 * sequence from drm_connector_register() when registering all the
711 * core drm connector interfaces. Everything added from this callback
712 * should be unregistered in the early_unregister callback.
713 *
Daniel Vetterd5745282017-01-25 07:26:45 +0100714 * This is called while holding &drm_connector.mutex.
Daniel Vettere73ab002016-12-18 14:35:45 +0100715 *
Daniel Vetter52217192016-08-12 22:48:50 +0200716 * Returns:
717 *
718 * 0 on success, or a negative error code on failure.
719 */
720 int (*late_register)(struct drm_connector *connector);
721
722 /**
723 * @early_unregister:
724 *
725 * This optional hook should be used to unregister the additional
726 * userspace interfaces attached to the connector from
Grazvydas Ignotas621a9992016-10-09 20:07:00 +0300727 * late_register(). It is called from drm_connector_unregister(),
Daniel Vetter52217192016-08-12 22:48:50 +0200728 * early in the driver unload sequence to disable userspace access
729 * before data structures are torndown.
Daniel Vettere73ab002016-12-18 14:35:45 +0100730 *
Daniel Vetterd5745282017-01-25 07:26:45 +0100731 * This is called while holding &drm_connector.mutex.
Daniel Vetter52217192016-08-12 22:48:50 +0200732 */
733 void (*early_unregister)(struct drm_connector *connector);
734
735 /**
736 * @destroy:
737 *
738 * Clean up connector resources. This is called at driver unload time
739 * through drm_mode_config_cleanup(). It can also be called at runtime
740 * when a connector is being hot-unplugged for drivers that support
741 * connector hotplugging (e.g. DisplayPort MST).
742 */
743 void (*destroy)(struct drm_connector *connector);
744
745 /**
746 * @atomic_duplicate_state:
747 *
748 * Duplicate the current atomic state for this connector and return it.
Grazvydas Ignotas621a9992016-10-09 20:07:00 +0300749 * The core and helpers guarantee that any atomic state duplicated with
Daniel Vetter52217192016-08-12 22:48:50 +0200750 * this hook and still owned by the caller (i.e. not transferred to the
Daniel Vetterd5745282017-01-25 07:26:45 +0100751 * driver by calling &drm_mode_config_funcs.atomic_commit) will be
752 * cleaned up by calling the @atomic_destroy_state hook in this
753 * structure.
Daniel Vetter52217192016-08-12 22:48:50 +0200754 *
Haneen Mohammedba1f6652018-05-25 04:25:55 +0300755 * This callback is mandatory for atomic drivers.
756 *
Daniel Vetterea0dd852016-12-29 21:48:26 +0100757 * Atomic drivers which don't subclass &struct drm_connector_state should use
Daniel Vetter52217192016-08-12 22:48:50 +0200758 * drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
759 * state structure to extend it with driver-private state should use
760 * __drm_atomic_helper_connector_duplicate_state() to make sure shared state is
761 * duplicated in a consistent fashion across drivers.
762 *
Daniel Vetterd5745282017-01-25 07:26:45 +0100763 * It is an error to call this hook before &drm_connector.state has been
Daniel Vetter52217192016-08-12 22:48:50 +0200764 * initialized correctly.
765 *
766 * NOTE:
767 *
768 * If the duplicate state references refcounted resources this hook must
769 * acquire a reference for each of them. The driver must release these
770 * references again in @atomic_destroy_state.
771 *
772 * RETURNS:
773 *
774 * Duplicated atomic state or NULL when the allocation failed.
775 */
776 struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
777
778 /**
779 * @atomic_destroy_state:
780 *
781 * Destroy a state duplicated with @atomic_duplicate_state and release
782 * or unreference all resources it references
Haneen Mohammedba1f6652018-05-25 04:25:55 +0300783 *
784 * This callback is mandatory for atomic drivers.
Daniel Vetter52217192016-08-12 22:48:50 +0200785 */
786 void (*atomic_destroy_state)(struct drm_connector *connector,
787 struct drm_connector_state *state);
788
789 /**
790 * @atomic_set_property:
791 *
792 * Decode a driver-private property value and store the decoded value
793 * into the passed-in state structure. Since the atomic core decodes all
794 * standardized properties (even for extensions beyond the core set of
795 * properties which might not be implemented by all drivers) this
796 * requires drivers to subclass the state structure.
797 *
798 * Such driver-private properties should really only be implemented for
799 * truly hardware/vendor specific state. Instead it is preferred to
800 * standardize atomic extension and decode the properties used to expose
801 * such an extension in the core.
802 *
803 * Do not call this function directly, use
804 * drm_atomic_connector_set_property() instead.
805 *
806 * This callback is optional if the driver does not support any
807 * driver-private atomic properties.
808 *
809 * NOTE:
810 *
811 * This function is called in the state assembly phase of atomic
812 * modesets, which can be aborted for any reason (including on
813 * userspace's request to just check whether a configuration would be
814 * possible). Drivers MUST NOT touch any persistent state (hardware or
815 * software) or data structures except the passed in @state parameter.
816 *
817 * Also since userspace controls in which order properties are set this
818 * function must not do any input validation (since the state update is
819 * incomplete and hence likely inconsistent). Instead any such input
820 * validation must be done in the various atomic_check callbacks.
821 *
822 * RETURNS:
823 *
824 * 0 if the property has been found, -EINVAL if the property isn't
825 * implemented by the driver (which shouldn't ever happen, the core only
826 * asks for properties attached to this connector). No other validation
827 * is allowed by the driver. The core already checks that the property
828 * value is within the range (integer, valid enum value, ...) the driver
829 * set when registering the property.
830 */
831 int (*atomic_set_property)(struct drm_connector *connector,
832 struct drm_connector_state *state,
833 struct drm_property *property,
834 uint64_t val);
835
836 /**
837 * @atomic_get_property:
838 *
839 * Reads out the decoded driver-private property. This is used to
840 * implement the GETCONNECTOR IOCTL.
841 *
842 * Do not call this function directly, use
843 * drm_atomic_connector_get_property() instead.
844 *
845 * This callback is optional if the driver does not support any
846 * driver-private atomic properties.
847 *
848 * RETURNS:
849 *
850 * 0 on success, -EINVAL if the property isn't implemented by the
851 * driver (which shouldn't ever happen, the core only asks for
852 * properties attached to this connector).
853 */
854 int (*atomic_get_property)(struct drm_connector *connector,
855 const struct drm_connector_state *state,
856 struct drm_property *property,
857 uint64_t *val);
Rob Clarkfceffb322016-11-05 11:08:09 -0400858
859 /**
860 * @atomic_print_state:
861 *
Daniel Vetterea0dd852016-12-29 21:48:26 +0100862 * If driver subclasses &struct drm_connector_state, it should implement
Rob Clarkfceffb322016-11-05 11:08:09 -0400863 * this optional hook for printing additional driver specific state.
864 *
865 * Do not call this directly, use drm_atomic_connector_print_state()
866 * instead.
867 */
868 void (*atomic_print_state)(struct drm_printer *p,
869 const struct drm_connector_state *state);
Daniel Vetter52217192016-08-12 22:48:50 +0200870};
871
872/* mode specified on the command line */
873struct drm_cmdline_mode {
874 bool specified;
875 bool refresh_specified;
876 bool bpp_specified;
877 int xres, yres;
878 int bpp;
879 int refresh;
880 bool rb;
881 bool interlace;
882 bool cvt;
883 bool margins;
884 enum drm_connector_force force;
885};
886
887/**
888 * struct drm_connector - central DRM connector control structure
Daniel Vetter52217192016-08-12 22:48:50 +0200889 *
890 * Each connector may be connected to one or more CRTCs, or may be clonable by
891 * another connector if they can share a CRTC. Each connector also has a specific
892 * position in the broader display (referred to as a 'screen' though it could
893 * span multiple monitors).
894 */
895struct drm_connector {
Daniel Vetter92e1d262018-07-09 10:40:05 +0200896 /** @dev: parent DRM device */
Daniel Vetter52217192016-08-12 22:48:50 +0200897 struct drm_device *dev;
Daniel Vetter92e1d262018-07-09 10:40:05 +0200898 /** @kdev: kernel device for sysfs attributes */
Daniel Vetter52217192016-08-12 22:48:50 +0200899 struct device *kdev;
Daniel Vetter92e1d262018-07-09 10:40:05 +0200900 /** @attr: sysfs attributes */
Daniel Vetter52217192016-08-12 22:48:50 +0200901 struct device_attribute *attr;
Daniel Vetter92e1d262018-07-09 10:40:05 +0200902
903 /**
904 * @head:
905 *
906 * List of all connectors on a @dev, linked from
907 * &drm_mode_config.connector_list. Protected by
908 * &drm_mode_config.connector_list_lock, but please only use
909 * &drm_connector_list_iter to walk this list.
910 */
Daniel Vetter52217192016-08-12 22:48:50 +0200911 struct list_head head;
912
Daniel Vetter92e1d262018-07-09 10:40:05 +0200913 /** @base: base KMS object */
Daniel Vetter52217192016-08-12 22:48:50 +0200914 struct drm_mode_object base;
915
Daniel Vetter92e1d262018-07-09 10:40:05 +0200916 /** @name: human readable name, can be overwritten by the driver */
Daniel Vetter52217192016-08-12 22:48:50 +0200917 char *name;
918
919 /**
Daniel Vettere73ab002016-12-18 14:35:45 +0100920 * @mutex: Lock for general connector state, but currently only protects
Daniel Vetterd5745282017-01-25 07:26:45 +0100921 * @registered. Most of the connector state is still protected by
922 * &drm_mode_config.mutex.
Daniel Vettere73ab002016-12-18 14:35:45 +0100923 */
924 struct mutex mutex;
925
926 /**
Daniel Vetter52217192016-08-12 22:48:50 +0200927 * @index: Compacted connector index, which matches the position inside
928 * the mode_config.list for drivers not supporting hot-add/removing. Can
929 * be used as an array index. It is invariant over the lifetime of the
930 * connector.
931 */
932 unsigned index;
933
Daniel Vetter92e1d262018-07-09 10:40:05 +0200934 /**
935 * @connector_type:
936 * one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
937 */
Daniel Vetter52217192016-08-12 22:48:50 +0200938 int connector_type;
Daniel Vetter92e1d262018-07-09 10:40:05 +0200939 /** @connector_type_id: index into connector type enum */
Daniel Vetter52217192016-08-12 22:48:50 +0200940 int connector_type_id;
Daniel Vetter92e1d262018-07-09 10:40:05 +0200941 /**
942 * @interlace_allowed:
943 * Can this connector handle interlaced modes? Only used by
944 * drm_helper_probe_single_connector_modes() for mode filtering.
945 */
Daniel Vetter52217192016-08-12 22:48:50 +0200946 bool interlace_allowed;
Daniel Vetter92e1d262018-07-09 10:40:05 +0200947 /**
948 * @doublescan_allowed:
949 * Can this connector handle doublescan? Only used by
950 * drm_helper_probe_single_connector_modes() for mode filtering.
951 */
Daniel Vetter52217192016-08-12 22:48:50 +0200952 bool doublescan_allowed;
Daniel Vetter92e1d262018-07-09 10:40:05 +0200953 /**
954 * @stereo_allowed:
955 * Can this connector handle stereo modes? Only used by
956 * drm_helper_probe_single_connector_modes() for mode filtering.
957 */
Daniel Vetter52217192016-08-12 22:48:50 +0200958 bool stereo_allowed;
Shashank Sharmad8523152017-07-13 21:03:11 +0530959
960 /**
961 * @ycbcr_420_allowed : This bool indicates if this connector is
962 * capable of handling YCBCR 420 output. While parsing the EDID
Matt Roper1e55a532019-02-01 17:23:26 -0800963 * blocks it's very helpful to know if the source is capable of
Shashank Sharmad8523152017-07-13 21:03:11 +0530964 * handling YCBCR 420 outputs.
965 */
966 bool ycbcr_420_allowed;
967
Daniel Vettere73ab002016-12-18 14:35:45 +0100968 /**
Lyude Paul39b50c62018-10-16 16:39:46 -0400969 * @registration_state: Is this connector initializing, exposed
970 * (registered) with userspace, or unregistered?
971 *
Daniel Vettere73ab002016-12-18 14:35:45 +0100972 * Protected by @mutex.
973 */
Lyude Paul39b50c62018-10-16 16:39:46 -0400974 enum drm_connector_registration_state registration_state;
Daniel Vetter91eefc02016-12-14 00:08:10 +0100975
976 /**
977 * @modes:
978 * Modes available on this connector (from fill_modes() + user).
Daniel Vetterd5745282017-01-25 07:26:45 +0100979 * Protected by &drm_mode_config.mutex.
Daniel Vetter91eefc02016-12-14 00:08:10 +0100980 */
Daniel Vetterd5745282017-01-25 07:26:45 +0100981 struct list_head modes;
Daniel Vetter52217192016-08-12 22:48:50 +0200982
Daniel Vetter91eefc02016-12-14 00:08:10 +0100983 /**
984 * @status:
985 * One of the drm_connector_status enums (connected, not, or unknown).
Daniel Vetterd5745282017-01-25 07:26:45 +0100986 * Protected by &drm_mode_config.mutex.
Daniel Vetter91eefc02016-12-14 00:08:10 +0100987 */
Daniel Vetter52217192016-08-12 22:48:50 +0200988 enum drm_connector_status status;
989
Daniel Vetter91eefc02016-12-14 00:08:10 +0100990 /**
991 * @probed_modes:
992 * These are modes added by probing with DDC or the BIOS, before
Daniel Vetterd5745282017-01-25 07:26:45 +0100993 * filtering is applied. Used by the probe helpers. Protected by
994 * &drm_mode_config.mutex.
Daniel Vetter91eefc02016-12-14 00:08:10 +0100995 */
Daniel Vetter52217192016-08-12 22:48:50 +0200996 struct list_head probed_modes;
997
Daniel Vetterae2a6da2016-08-12 22:48:53 +0200998 /**
999 * @display_info: Display information is filled from EDID information
1000 * when a display is detected. For non hot-pluggable displays such as
1001 * flat panels in embedded systems, the driver should initialize the
Daniel Vetterd5745282017-01-25 07:26:45 +01001002 * &drm_display_info.width_mm and &drm_display_info.height_mm fields
1003 * with the physical size of the display.
Daniel Vetter91eefc02016-12-14 00:08:10 +01001004 *
Daniel Vetterd5745282017-01-25 07:26:45 +01001005 * Protected by &drm_mode_config.mutex.
Daniel Vetterae2a6da2016-08-12 22:48:53 +02001006 */
Daniel Vetter52217192016-08-12 22:48:50 +02001007 struct drm_display_info display_info;
Daniel Vetter92e1d262018-07-09 10:40:05 +02001008
1009 /** @funcs: connector control functions */
Daniel Vetter52217192016-08-12 22:48:50 +02001010 const struct drm_connector_funcs *funcs;
1011
Daniel Vetter92e1d262018-07-09 10:40:05 +02001012 /**
1013 * @edid_blob_ptr: DRM property containing EDID if present. Protected by
1014 * &drm_mode_config.mutex. This should be updated only by calling
Daniel Vetterc555f022018-07-09 10:40:06 +02001015 * drm_connector_update_edid_property().
Daniel Vetter92e1d262018-07-09 10:40:05 +02001016 */
Daniel Vetter52217192016-08-12 22:48:50 +02001017 struct drm_property_blob *edid_blob_ptr;
Daniel Vetter92e1d262018-07-09 10:40:05 +02001018
1019 /** @properties: property tracking for this connector */
Daniel Vetter52217192016-08-12 22:48:50 +02001020 struct drm_object_properties properties;
1021
Daniel Vetter92e1d262018-07-09 10:40:05 +02001022 /**
1023 * @scaling_mode_property: Optional atomic property to control the
1024 * upscaling. See drm_connector_attach_content_protection_property().
1025 */
Maarten Lankhorst8f6e1e22017-05-01 15:37:54 +02001026 struct drm_property *scaling_mode_property;
1027
Daniel Vetter52217192016-08-12 22:48:50 +02001028 /**
Nicholas Kazlauskasba1b0f62018-09-18 09:55:20 -04001029 * @vrr_capable_property: Optional property to help userspace
1030 * query hardware support for variable refresh rate on a connector.
1031 * connector. Drivers can add the property to a connector by
1032 * calling drm_connector_attach_vrr_capable_property().
1033 *
1034 * This should be updated only by calling
1035 * drm_connector_set_vrr_capable_property().
1036 */
1037 struct drm_property *vrr_capable_property;
1038
1039 /**
Sean Paul24557862018-01-08 14:55:37 -05001040 * @content_protection_property: DRM ENUM property for content
Daniel Vetter92e1d262018-07-09 10:40:05 +02001041 * protection. See drm_connector_attach_content_protection_property().
Sean Paul24557862018-01-08 14:55:37 -05001042 */
1043 struct drm_property *content_protection_property;
1044
1045 /**
Daniel Vetter52217192016-08-12 22:48:50 +02001046 * @path_blob_ptr:
1047 *
Daniel Vetter92e1d262018-07-09 10:40:05 +02001048 * DRM blob property data for the DP MST path property. This should only
Daniel Vetter97e14fb2018-07-09 10:40:08 +02001049 * be updated by calling drm_connector_set_path_property().
Daniel Vetter52217192016-08-12 22:48:50 +02001050 */
1051 struct drm_property_blob *path_blob_ptr;
1052
Radhakrishna Sripada47e22ff2018-10-12 11:42:32 -07001053 /**
1054 * @max_bpc_property: Default connector property for the max bpc to be
1055 * driven out of the connector.
1056 */
1057 struct drm_property *max_bpc_property;
1058
Daniel Vetter52217192016-08-12 22:48:50 +02001059#define DRM_CONNECTOR_POLL_HPD (1 << 0)
Daniel Vetter52217192016-08-12 22:48:50 +02001060#define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
Daniel Vetter52217192016-08-12 22:48:50 +02001061#define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
1062
Daniel Vetterae2a6da2016-08-12 22:48:53 +02001063 /**
1064 * @polled:
1065 *
1066 * Connector polling mode, a combination of
1067 *
1068 * DRM_CONNECTOR_POLL_HPD
1069 * The connector generates hotplug events and doesn't need to be
1070 * periodically polled. The CONNECT and DISCONNECT flags must not
1071 * be set together with the HPD flag.
1072 *
1073 * DRM_CONNECTOR_POLL_CONNECT
1074 * Periodically poll the connector for connection.
1075 *
1076 * DRM_CONNECTOR_POLL_DISCONNECT
Daniel Vetter92e1d262018-07-09 10:40:05 +02001077 * Periodically poll the connector for disconnection, without
1078 * causing flickering even when the connector is in use. DACs should
1079 * rarely do this without a lot of testing.
Daniel Vetterae2a6da2016-08-12 22:48:53 +02001080 *
1081 * Set to 0 for connectors that don't support connection status
1082 * discovery.
1083 */
1084 uint8_t polled;
Daniel Vetter52217192016-08-12 22:48:50 +02001085
Daniel Vetter92e1d262018-07-09 10:40:05 +02001086 /**
1087 * @dpms: Current dpms state. For legacy drivers the
1088 * &drm_connector_funcs.dpms callback must update this. For atomic
1089 * drivers, this is handled by the core atomic code, and drivers must
1090 * only take &drm_crtc_state.active into account.
1091 */
Daniel Vetter52217192016-08-12 22:48:50 +02001092 int dpms;
1093
Daniel Vetter92e1d262018-07-09 10:40:05 +02001094 /** @helper_private: mid-layer private data */
Daniel Vetter52217192016-08-12 22:48:50 +02001095 const struct drm_connector_helper_funcs *helper_private;
1096
Daniel Vetter92e1d262018-07-09 10:40:05 +02001097 /** @cmdline_mode: mode line parsed from the kernel cmdline for this connector */
Daniel Vetter52217192016-08-12 22:48:50 +02001098 struct drm_cmdline_mode cmdline_mode;
Daniel Vetter92e1d262018-07-09 10:40:05 +02001099 /** @force: a DRM_FORCE_<foo> state for forced mode sets */
Daniel Vetter52217192016-08-12 22:48:50 +02001100 enum drm_connector_force force;
Daniel Vetter92e1d262018-07-09 10:40:05 +02001101 /** @override_edid: has the EDID been overwritten through debugfs for testing? */
Daniel Vetter52217192016-08-12 22:48:50 +02001102 bool override_edid;
1103
1104#define DRM_CONNECTOR_MAX_ENCODER 3
Daniel Vetter92e1d262018-07-09 10:40:05 +02001105 /**
1106 * @encoder_ids: Valid encoders for this connector. Please only use
1107 * drm_connector_for_each_possible_encoder() to enumerate these.
1108 */
Daniel Vetter52217192016-08-12 22:48:50 +02001109 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
Daniel Vetter92e1d262018-07-09 10:40:05 +02001110
Daniel Vetter2e2b96e2017-11-08 21:30:07 +01001111 /**
1112 * @encoder: Currently bound encoder driving this connector, if any.
1113 * Only really meaningful for non-atomic drivers. Atomic drivers should
1114 * instead look at &drm_connector_state.best_encoder, and in case they
1115 * need the CRTC driving this output, &drm_connector_state.crtc.
1116 */
1117 struct drm_encoder *encoder;
Daniel Vetter52217192016-08-12 22:48:50 +02001118
1119#define MAX_ELD_BYTES 128
Daniel Vetter92e1d262018-07-09 10:40:05 +02001120 /** @eld: EDID-like data, if present */
Daniel Vetter52217192016-08-12 22:48:50 +02001121 uint8_t eld[MAX_ELD_BYTES];
Daniel Vetter92e1d262018-07-09 10:40:05 +02001122 /** @latency_present: AV delay info from ELD, if found */
Daniel Vetter52217192016-08-12 22:48:50 +02001123 bool latency_present[2];
Daniel Vetter92e1d262018-07-09 10:40:05 +02001124 /**
1125 * @video_latency: Video latency info from ELD, if found.
1126 * [0]: progressive, [1]: interlaced
1127 */
1128 int video_latency[2];
1129 /**
1130 * @audio_latency: audio latency info from ELD, if found
1131 * [0]: progressive, [1]: interlaced
1132 */
Daniel Vetter52217192016-08-12 22:48:50 +02001133 int audio_latency[2];
Daniel Vetter92e1d262018-07-09 10:40:05 +02001134 /**
1135 * @null_edid_counter: track sinks that give us all zeros for the EDID.
1136 * Needed to workaround some HW bugs where we get all 0s
1137 */
1138 int null_edid_counter;
1139
1140 /** @bad_edid_counter: track sinks that give us an EDID with invalid checksum */
Daniel Vetter52217192016-08-12 22:48:50 +02001141 unsigned bad_edid_counter;
1142
Daniel Vetter92e1d262018-07-09 10:40:05 +02001143 /**
1144 * @edid_corrupt: Indicates whether the last read EDID was corrupt. Used
1145 * in Displayport compliance testing - Displayport Link CTS Core 1.2
1146 * rev1.1 4.2.2.6
Daniel Vetter52217192016-08-12 22:48:50 +02001147 */
1148 bool edid_corrupt;
1149
Daniel Vetter92e1d262018-07-09 10:40:05 +02001150 /** @debugfs_entry: debugfs directory for this connector */
Daniel Vetter52217192016-08-12 22:48:50 +02001151 struct dentry *debugfs_entry;
1152
Daniel Vetterc9e42b72017-03-28 17:53:48 +02001153 /**
1154 * @state:
1155 *
1156 * Current atomic state for this connector.
1157 *
Daniel Vetter92e1d262018-07-09 10:40:05 +02001158 * This is protected by &drm_mode_config.connection_mutex. Note that
Daniel Vetterc9e42b72017-03-28 17:53:48 +02001159 * nonblocking atomic commits access the current connector state without
1160 * taking locks. Either by going through the &struct drm_atomic_state
Maarten Lankhorst77ac3b02017-07-19 16:39:20 +02001161 * pointers, see for_each_oldnew_connector_in_state(),
Daniel Vetterc9e42b72017-03-28 17:53:48 +02001162 * for_each_old_connector_in_state() and
1163 * for_each_new_connector_in_state(). Or through careful ordering of
1164 * atomic commit operations as implemented in the atomic helpers, see
1165 * &struct drm_crtc_commit.
1166 */
Daniel Vetter52217192016-08-12 22:48:50 +02001167 struct drm_connector_state *state;
1168
Daniel Vetter92e1d262018-07-09 10:40:05 +02001169 /* DisplayID bits. FIXME: Extract into a substruct? */
1170
1171 /**
1172 * @tile_blob_ptr:
1173 *
1174 * DRM blob property data for the tile property (used mostly by DP MST).
1175 * This is meant for screens which are driven through separate display
1176 * pipelines represented by &drm_crtc, which might not be running with
1177 * genlocked clocks. For tiled panels which are genlocked, like
1178 * dual-link LVDS or dual-link DSI, the driver should try to not expose
1179 * the tiling and virtualize both &drm_crtc and &drm_plane if needed.
1180 *
1181 * This should only be updated by calling
Daniel Vetter97e14fb2018-07-09 10:40:08 +02001182 * drm_connector_set_tile_property().
Daniel Vetter92e1d262018-07-09 10:40:05 +02001183 */
1184 struct drm_property_blob *tile_blob_ptr;
1185
1186 /** @has_tile: is this connector connected to a tiled monitor */
Daniel Vetter52217192016-08-12 22:48:50 +02001187 bool has_tile;
Daniel Vetter92e1d262018-07-09 10:40:05 +02001188 /** @tile_group: tile group for the connected monitor */
Daniel Vetter52217192016-08-12 22:48:50 +02001189 struct drm_tile_group *tile_group;
Daniel Vetter92e1d262018-07-09 10:40:05 +02001190 /** @tile_is_single_monitor: whether the tile is one monitor housing */
Daniel Vetter52217192016-08-12 22:48:50 +02001191 bool tile_is_single_monitor;
1192
Daniel Vetter92e1d262018-07-09 10:40:05 +02001193 /** @num_h_tile: number of horizontal tiles in the tile group */
1194 /** @num_v_tile: number of vertical tiles in the tile group */
Daniel Vetter52217192016-08-12 22:48:50 +02001195 uint8_t num_h_tile, num_v_tile;
Daniel Vetter92e1d262018-07-09 10:40:05 +02001196 /** @tile_h_loc: horizontal location of this tile */
1197 /** @tile_v_loc: vertical location of this tile */
Daniel Vetter52217192016-08-12 22:48:50 +02001198 uint8_t tile_h_loc, tile_v_loc;
Daniel Vetter92e1d262018-07-09 10:40:05 +02001199 /** @tile_h_size: horizontal size of this tile. */
1200 /** @tile_v_size: vertical size of this tile. */
Daniel Vetter52217192016-08-12 22:48:50 +02001201 uint16_t tile_h_size, tile_v_size;
Daniel Vettera703c552017-12-04 21:48:18 +01001202
1203 /**
Daniel Vetterea497bb2017-12-13 13:49:36 +01001204 * @free_node:
Daniel Vettera703c552017-12-04 21:48:18 +01001205 *
Daniel Vetter92e1d262018-07-09 10:40:05 +02001206 * List used only by &drm_connector_list_iter to be able to clean up a
Daniel Vetterea497bb2017-12-13 13:49:36 +01001207 * connector from any context, in conjunction with
1208 * &drm_mode_config.connector_free_work.
Daniel Vettera703c552017-12-04 21:48:18 +01001209 */
Daniel Vetterea497bb2017-12-13 13:49:36 +01001210 struct llist_node free_node;
Daniel Vetter52217192016-08-12 22:48:50 +02001211};
1212
1213#define obj_to_connector(x) container_of(x, struct drm_connector, base)
1214
1215int drm_connector_init(struct drm_device *dev,
1216 struct drm_connector *connector,
1217 const struct drm_connector_funcs *funcs,
1218 int connector_type);
Gerd Hoffmann6b7e2d52018-10-02 13:10:40 +02001219void drm_connector_attach_edid_property(struct drm_connector *connector);
Daniel Vetter52217192016-08-12 22:48:50 +02001220int drm_connector_register(struct drm_connector *connector);
1221void drm_connector_unregister(struct drm_connector *connector);
Daniel Vettercde4c442018-07-09 10:40:07 +02001222int drm_connector_attach_encoder(struct drm_connector *connector,
Daniel Vetter52217192016-08-12 22:48:50 +02001223 struct drm_encoder *encoder);
1224
1225void drm_connector_cleanup(struct drm_connector *connector);
Ville Syrjälä73705732018-06-26 22:47:10 +03001226
1227static inline unsigned int drm_connector_index(const struct drm_connector *connector)
Daniel Vetter52217192016-08-12 22:48:50 +02001228{
1229 return connector->index;
1230}
1231
Ville Syrjälä73705732018-06-26 22:47:10 +03001232static inline u32 drm_connector_mask(const struct drm_connector *connector)
1233{
1234 return 1 << connector->index;
1235}
1236
Daniel Vetter52217192016-08-12 22:48:50 +02001237/**
1238 * drm_connector_lookup - lookup connector object
1239 * @dev: DRM device
Dave Airliee7e62c72017-11-09 09:35:04 +10001240 * @file_priv: drm file to check for lease against.
Daniel Vetter52217192016-08-12 22:48:50 +02001241 * @id: connector object id
1242 *
1243 * This function looks up the connector object specified by id
1244 * add takes a reference to it.
1245 */
1246static inline struct drm_connector *drm_connector_lookup(struct drm_device *dev,
Keith Packard418da172017-03-14 23:25:07 -07001247 struct drm_file *file_priv,
Daniel Vetter52217192016-08-12 22:48:50 +02001248 uint32_t id)
1249{
1250 struct drm_mode_object *mo;
Keith Packard418da172017-03-14 23:25:07 -07001251 mo = drm_mode_object_find(dev, file_priv, id, DRM_MODE_OBJECT_CONNECTOR);
Daniel Vetter52217192016-08-12 22:48:50 +02001252 return mo ? obj_to_connector(mo) : NULL;
1253}
1254
1255/**
Thierry Redingad093602017-02-28 15:46:39 +01001256 * drm_connector_get - acquire a connector reference
1257 * @connector: DRM connector
Daniel Vetter52217192016-08-12 22:48:50 +02001258 *
1259 * This function increments the connector's refcount.
1260 */
Thierry Redingad093602017-02-28 15:46:39 +01001261static inline void drm_connector_get(struct drm_connector *connector)
Daniel Vetter52217192016-08-12 22:48:50 +02001262{
Thierry Redingad093602017-02-28 15:46:39 +01001263 drm_mode_object_get(&connector->base);
Daniel Vetter52217192016-08-12 22:48:50 +02001264}
1265
1266/**
Thierry Redingad093602017-02-28 15:46:39 +01001267 * drm_connector_put - release a connector reference
1268 * @connector: DRM connector
Daniel Vetter52217192016-08-12 22:48:50 +02001269 *
Thierry Redingad093602017-02-28 15:46:39 +01001270 * This function decrements the connector's reference count and frees the
1271 * object if the reference count drops to zero.
1272 */
1273static inline void drm_connector_put(struct drm_connector *connector)
1274{
1275 drm_mode_object_put(&connector->base);
1276}
1277
1278/**
Lyude Paul39b50c62018-10-16 16:39:46 -04001279 * drm_connector_is_unregistered - has the connector been unregistered from
1280 * userspace?
1281 * @connector: DRM connector
1282 *
1283 * Checks whether or not @connector has been unregistered from userspace.
1284 *
1285 * Returns:
1286 * True if the connector was unregistered, false if the connector is
1287 * registered or has not yet been registered with userspace.
1288 */
1289static inline bool
1290drm_connector_is_unregistered(struct drm_connector *connector)
1291{
1292 return READ_ONCE(connector->registration_state) ==
1293 DRM_CONNECTOR_UNREGISTERED;
1294}
1295
Daniel Vetter52217192016-08-12 22:48:50 +02001296const char *drm_get_connector_status_name(enum drm_connector_status status);
1297const char *drm_get_subpixel_order_name(enum subpixel_order order);
1298const char *drm_get_dpms_name(int val);
1299const char *drm_get_dvi_i_subconnector_name(int val);
1300const char *drm_get_dvi_i_select_name(int val);
1301const char *drm_get_tv_subconnector_name(int val);
1302const char *drm_get_tv_select_name(int val);
Sean Paul24557862018-01-08 14:55:37 -05001303const char *drm_get_content_protection_name(int val);
Daniel Vetter52217192016-08-12 22:48:50 +02001304
1305int drm_mode_create_dvi_i_properties(struct drm_device *dev);
Boris Brezillon6c4f52d2018-12-06 15:24:37 +01001306int drm_mode_create_tv_margin_properties(struct drm_device *dev);
Daniel Vetter52217192016-08-12 22:48:50 +02001307int drm_mode_create_tv_properties(struct drm_device *dev,
1308 unsigned int num_modes,
1309 const char * const modes[]);
Boris Brezillon6c4f52d2018-12-06 15:24:37 +01001310void drm_connector_attach_tv_margin_properties(struct drm_connector *conn);
Daniel Vetter52217192016-08-12 22:48:50 +02001311int drm_mode_create_scaling_mode_property(struct drm_device *dev);
Stanislav Lisovskiy50525c32018-05-15 16:59:27 +03001312int drm_connector_attach_content_type_property(struct drm_connector *dev);
Maarten Lankhorst8f6e1e22017-05-01 15:37:54 +02001313int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
1314 u32 scaling_mode_mask);
Nicholas Kazlauskasba1b0f62018-09-18 09:55:20 -04001315int drm_connector_attach_vrr_capable_property(
1316 struct drm_connector *connector);
Sean Paul24557862018-01-08 14:55:37 -05001317int drm_connector_attach_content_protection_property(
1318 struct drm_connector *connector);
Daniel Vetter52217192016-08-12 22:48:50 +02001319int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
Stanislav Lisovskiy50525c32018-05-15 16:59:27 +03001320int drm_mode_create_content_type_property(struct drm_device *dev);
1321void drm_hdmi_avi_infoframe_content_type(struct hdmi_avi_infoframe *frame,
1322 const struct drm_connector_state *conn_state);
1323
Daniel Vetter52217192016-08-12 22:48:50 +02001324int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
1325
Daniel Vetter97e14fb2018-07-09 10:40:08 +02001326int drm_connector_set_path_property(struct drm_connector *connector,
1327 const char *path);
1328int drm_connector_set_tile_property(struct drm_connector *connector);
Daniel Vetterc555f022018-07-09 10:40:06 +02001329int drm_connector_update_edid_property(struct drm_connector *connector,
1330 const struct edid *edid);
Daniel Vetter97e14fb2018-07-09 10:40:08 +02001331void drm_connector_set_link_status_property(struct drm_connector *connector,
1332 uint64_t link_status);
Nicholas Kazlauskasba1b0f62018-09-18 09:55:20 -04001333void drm_connector_set_vrr_capable_property(
1334 struct drm_connector *connector, bool capable);
Hans de Goede8d70f392017-11-25 20:35:49 +01001335int drm_connector_init_panel_orientation_property(
1336 struct drm_connector *connector, int width, int height);
Radhakrishna Sripada47e22ff2018-10-12 11:42:32 -07001337int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
1338 int min, int max);
Daniel Vetterafb21ea62016-08-31 18:09:04 +02001339
1340/**
Daniel Vetter9498c192016-11-14 12:58:24 +01001341 * struct drm_tile_group - Tile group metadata
1342 * @refcount: reference count
1343 * @dev: DRM device
1344 * @id: tile group id exposed to userspace
1345 * @group_data: Sink-private data identifying this group
1346 *
1347 * @group_data corresponds to displayid vend/prod/serial for external screens
1348 * with an EDID.
1349 */
1350struct drm_tile_group {
1351 struct kref refcount;
1352 struct drm_device *dev;
1353 int id;
1354 u8 group_data[8];
1355};
1356
1357struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
1358 char topology[8]);
1359struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
1360 char topology[8]);
1361void drm_mode_put_tile_group(struct drm_device *dev,
1362 struct drm_tile_group *tg);
1363
1364/**
Daniel Vetter613051d2016-12-14 00:08:06 +01001365 * struct drm_connector_list_iter - connector_list iterator
1366 *
1367 * This iterator tracks state needed to be able to walk the connector_list
1368 * within struct drm_mode_config. Only use together with
Thierry Redingb982dab2017-02-28 15:46:43 +01001369 * drm_connector_list_iter_begin(), drm_connector_list_iter_end() and
Daniel Vetter613051d2016-12-14 00:08:06 +01001370 * drm_connector_list_iter_next() respectively the convenience macro
1371 * drm_for_each_connector_iter().
1372 */
1373struct drm_connector_list_iter {
1374/* private: */
1375 struct drm_device *dev;
1376 struct drm_connector *conn;
1377};
1378
Thierry Redingb982dab2017-02-28 15:46:43 +01001379void drm_connector_list_iter_begin(struct drm_device *dev,
1380 struct drm_connector_list_iter *iter);
Daniel Vetter613051d2016-12-14 00:08:06 +01001381struct drm_connector *
1382drm_connector_list_iter_next(struct drm_connector_list_iter *iter);
Thierry Redingb982dab2017-02-28 15:46:43 +01001383void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
Daniel Vetter613051d2016-12-14 00:08:06 +01001384
Ville Syrjälä38cb8d92018-06-28 16:13:13 +03001385bool drm_connector_has_possible_encoder(struct drm_connector *connector,
1386 struct drm_encoder *encoder);
1387
Daniel Vetter613051d2016-12-14 00:08:06 +01001388/**
1389 * drm_for_each_connector_iter - connector_list iterator macro
Daniel Vetterea0dd852016-12-29 21:48:26 +01001390 * @connector: &struct drm_connector pointer used as cursor
1391 * @iter: &struct drm_connector_list_iter
Daniel Vetter613051d2016-12-14 00:08:06 +01001392 *
1393 * Note that @connector is only valid within the list body, if you want to use
Thierry Redingb982dab2017-02-28 15:46:43 +01001394 * @connector after calling drm_connector_list_iter_end() then you need to grab
Gabriel Krisman Bertazi5e851c92017-04-20 21:38:19 -03001395 * your own reference first using drm_connector_get().
Daniel Vetter613051d2016-12-14 00:08:06 +01001396 */
1397#define drm_for_each_connector_iter(connector, iter) \
1398 while ((connector = drm_connector_list_iter_next(iter)))
1399
Ville Syrjälä83aefbb2018-06-28 16:13:09 +03001400/**
1401 * drm_connector_for_each_possible_encoder - iterate connector's possible encoders
1402 * @connector: &struct drm_connector pointer
1403 * @encoder: &struct drm_encoder pointer used as cursor
1404 * @__i: int iteration cursor, for macro-internal use
1405 */
1406#define drm_connector_for_each_possible_encoder(connector, encoder, __i) \
1407 for ((__i) = 0; (__i) < ARRAY_SIZE((connector)->encoder_ids) && \
1408 (connector)->encoder_ids[(__i)] != 0; (__i)++) \
1409 for_each_if((encoder) = \
1410 drm_encoder_find((connector)->dev, NULL, \
1411 (connector)->encoder_ids[(__i)])) \
1412
Daniel Vetter52217192016-08-12 22:48:50 +02001413#endif