2 * Copyright (c) 2016 Intel Corporation
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
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16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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23 #ifndef __DRM_CONNECTOR_H__
24 #define __DRM_CONNECTOR_H__
26 #include <linux/list.h>
27 #include <linux/ctype.h>
28 #include <drm/drm_mode_object.h>
30 #include <uapi/drm/drm_mode.h>
34 struct drm_connector_helper_funcs
;
35 struct drm_modeset_acquire_ctx
;
40 struct drm_property_blob
;
44 enum drm_connector_force
{
45 DRM_FORCE_UNSPECIFIED
,
47 DRM_FORCE_ON
, /* force on analog part normally */
48 DRM_FORCE_ON_DIGITAL
, /* for DVI-I use digital connector */
52 * enum drm_connector_status - status for a &drm_connector
54 * This enum is used to track the connector status. There are no separate
55 * #defines for the uapi!
57 enum drm_connector_status
{
59 * @connector_status_connected: The connector is definitely connected to
60 * a sink device, and can be enabled.
62 connector_status_connected
= 1,
64 * @connector_status_disconnected: The connector isn't connected to a
65 * sink device which can be autodetect. For digital outputs like DP or
66 * HDMI (which can be realiable probed) this means there's really
67 * nothing there. It is driver-dependent whether a connector with this
68 * status can be lit up or not.
70 connector_status_disconnected
= 2,
72 * @connector_status_unknown: The connector's status could not be
73 * reliably detected. This happens when probing would either cause
74 * flicker (like load-detection when the connector is in use), or when a
75 * hardware resource isn't available (like when load-detection needs a
76 * free CRTC). It should be possible to light up the connector with one
77 * of the listed fallback modes. For default configuration userspace
78 * should only try to light up connectors with unknown status when
79 * there's not connector with @connector_status_connected.
81 connector_status_unknown
= 3,
86 SubPixelHorizontalRGB
,
87 SubPixelHorizontalBGR
,
95 * struct drm_scrambling: sink's scrambling support.
97 struct drm_scrambling
{
99 * @supported: scrambling supported for rates > 340 Mhz.
103 * @low_rates: scrambling supported for rates <= 340 Mhz.
109 * struct drm_scdc - Information about scdc capabilities of a HDMI 2.0 sink
111 * Provides SCDC register support and capabilities related information on a
112 * HDMI 2.0 sink. In case of a HDMI 1.4 sink, all parameter must be 0.
116 * @supported: status control & data channel present.
120 * @read_request: sink is capable of generating scdc read request.
124 * @scrambling: sink's scrambling capabilities
126 struct drm_scrambling scrambling
;
131 * struct drm_hdmi_info - runtime information about the connected HDMI sink
133 * Describes if a given display supports advanced HDMI 2.0 features.
134 * This information is available in CEA-861-F extension blocks (like HF-VSDB).
136 struct drm_hdmi_info
{
137 /** @scdc: sink's scdc support and capabilities */
138 struct drm_scdc scdc
;
142 * enum drm_link_status - connector's link_status property value
144 * This enum is used as the connector's link status property value.
145 * It is set to the values defined in uapi.
147 * @DRM_LINK_STATUS_GOOD: DP Link is Good as a result of successful
149 * @DRM_LINK_STATUS_BAD: DP Link is BAD as a result of link training
152 enum drm_link_status
{
153 DRM_LINK_STATUS_GOOD
= DRM_MODE_LINK_STATUS_GOOD
,
154 DRM_LINK_STATUS_BAD
= DRM_MODE_LINK_STATUS_BAD
,
158 * struct drm_display_info - runtime data about the connected sink
160 * Describes a given display (e.g. CRT or flat panel) and its limitations. For
161 * fixed display sinks like built-in panels there's not much difference between
162 * this and &struct drm_connector. But for sinks with a real cable this
163 * structure is meant to describe all the things at the other end of the cable.
165 * For sinks which provide an EDID this can be filled out by calling
166 * drm_add_edid_modes().
168 struct drm_display_info
{
170 * @name: Name of the display.
172 char name
[DRM_DISPLAY_INFO_LEN
];
175 * @width_mm: Physical width in mm.
177 unsigned int width_mm
;
179 * @height_mm: Physical height in mm.
181 unsigned int height_mm
;
184 * @pixel_clock: Maximum pixel clock supported by the sink, in units of
185 * 100Hz. This mismatches the clock in &drm_display_mode (which is in
186 * kHZ), because that's what the EDID uses as base unit.
188 unsigned int pixel_clock
;
190 * @bpc: Maximum bits per color channel. Used by HDMI and DP outputs.
195 * @subpixel_order: Subpixel order of LCD panels.
197 enum subpixel_order subpixel_order
;
199 #define DRM_COLOR_FORMAT_RGB444 (1<<0)
200 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
201 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
204 * @color_formats: HDMI Color formats, selects between RGB and YCrCb
205 * modes. Used DRM_COLOR_FORMAT\_ defines, which are _not_ the same ones
206 * as used to describe the pixel format in framebuffers, and also don't
207 * match the formats in @bus_formats which are shared with v4l.
212 * @bus_formats: Pixel data format on the wire, somewhat redundant with
213 * @color_formats. Array of size @num_bus_formats encoded using
214 * MEDIA_BUS_FMT\_ defines shared with v4l and media drivers.
216 const u32
*bus_formats
;
218 * @num_bus_formats: Size of @bus_formats array.
220 unsigned int num_bus_formats
;
222 #define DRM_BUS_FLAG_DE_LOW (1<<0)
223 #define DRM_BUS_FLAG_DE_HIGH (1<<1)
224 /* drive data on pos. edge */
225 #define DRM_BUS_FLAG_PIXDATA_POSEDGE (1<<2)
226 /* drive data on neg. edge */
227 #define DRM_BUS_FLAG_PIXDATA_NEGEDGE (1<<3)
228 /* data is transmitted MSB to LSB on the bus */
229 #define DRM_BUS_FLAG_DATA_MSB_TO_LSB (1<<4)
230 /* data is transmitted LSB to MSB on the bus */
231 #define DRM_BUS_FLAG_DATA_LSB_TO_MSB (1<<5)
234 * @bus_flags: Additional information (like pixel signal polarity) for
235 * the pixel data on the bus, using DRM_BUS_FLAGS\_ defines.
240 * @max_tmds_clock: Maximum TMDS clock rate supported by the
241 * sink in kHz. 0 means undefined.
246 * @dvi_dual: Dual-link DVI sink?
251 * @edid_hdmi_dc_modes: Mask of supported hdmi deep color modes. Even
252 * more stuff redundant with @bus_formats.
254 u8 edid_hdmi_dc_modes
;
257 * @cea_rev: CEA revision of the HDMI sink.
262 * @hdmi: advance features of a HDMI sink.
264 struct drm_hdmi_info hdmi
;
267 int drm_display_info_set_bus_formats(struct drm_display_info
*info
,
269 unsigned int num_formats
);
272 * struct drm_tv_connector_state - TV connector related states
273 * @subconnector: selected subconnector
274 * @margins: left/right/top/bottom margins
276 * @brightness: brightness in percent
277 * @contrast: contrast in percent
278 * @flicker_reduction: flicker reduction in percent
279 * @overscan: overscan in percent
280 * @saturation: saturation in percent
281 * @hue: hue in percent
283 struct drm_tv_connector_state
{
284 enum drm_mode_subconnector subconnector
;
292 unsigned int brightness
;
293 unsigned int contrast
;
294 unsigned int flicker_reduction
;
295 unsigned int overscan
;
296 unsigned int saturation
;
301 * struct drm_connector_state - mutable connector state
302 * @connector: backpointer to the connector
303 * @best_encoder: can be used by helpers and drivers to select the encoder
304 * @state: backpointer to global drm_atomic_state
305 * @tv: TV connector state
307 struct drm_connector_state
{
308 struct drm_connector
*connector
;
311 * @crtc: CRTC to connect connector to, NULL if disabled.
313 * Do not change this directly, use drm_atomic_set_crtc_for_connector()
316 struct drm_crtc
*crtc
;
318 struct drm_encoder
*best_encoder
;
321 * @link_status: Connector link_status to keep track of whether link is
322 * GOOD or BAD to notify userspace if retraining is necessary.
324 enum drm_link_status link_status
;
326 struct drm_atomic_state
*state
;
328 struct drm_tv_connector_state tv
;
332 * struct drm_connector_funcs - control connectors on a given device
334 * Each CRTC may have one or more connectors attached to it. The functions
335 * below allow the core DRM code to control connectors, enumerate available modes,
338 struct drm_connector_funcs
{
342 * Legacy entry point to set the per-connector DPMS state. Legacy DPMS
343 * is exposed as a standard property on the connector, but diverted to
344 * this callback in the drm core. Note that atomic drivers don't
345 * implement the 4 level DPMS support on the connector any more, but
346 * instead only have an on/off "ACTIVE" property on the CRTC object.
348 * Drivers implementing atomic modeset should use
349 * drm_atomic_helper_connector_dpms() to implement this hook.
353 * 0 on success or a negative error code on failure.
355 int (*dpms
)(struct drm_connector
*connector
, int mode
);
360 * Reset connector hardware and software state to off. This function isn't
361 * called by the core directly, only through drm_mode_config_reset().
362 * It's not a helper hook only for historical reasons.
364 * Atomic drivers can use drm_atomic_helper_connector_reset() to reset
365 * atomic state using this hook.
367 void (*reset
)(struct drm_connector
*connector
);
372 * Check to see if anything is attached to the connector. The parameter
373 * force is set to false whilst polling, true when checking the
374 * connector due to a user request. force can be used by the driver to
375 * avoid expensive, destructive operations during automated probing.
377 * This callback is optional, if not implemented the connector will be
378 * considered as always being attached.
382 * Note that this hook is only called by the probe helper. It's not in
383 * the helper library vtable purely for historical reasons. The only DRM
384 * core entry point to probe connector state is @fill_modes.
386 * Note that the helper library will already hold
387 * &drm_mode_config.connection_mutex. Drivers which need to grab additional
388 * locks to avoid races with concurrent modeset changes need to use
389 * &drm_connector_helper_funcs.detect_ctx instead.
393 * drm_connector_status indicating the connector's status.
395 enum drm_connector_status (*detect
)(struct drm_connector
*connector
,
401 * This function is called to update internal encoder state when the
402 * connector is forced to a certain state by userspace, either through
403 * the sysfs interfaces or on the kernel cmdline. In that case the
404 * @detect callback isn't called.
408 * Note that this hook is only called by the probe helper. It's not in
409 * the helper library vtable purely for historical reasons. The only DRM
410 * core entry point to probe connector state is @fill_modes.
412 void (*force
)(struct drm_connector
*connector
);
417 * Entry point for output detection and basic mode validation. The
418 * driver should reprobe the output if needed (e.g. when hotplug
419 * handling is unreliable), add all detected modes to &drm_connector.modes
420 * and filter out any the device can't support in any configuration. It
421 * also needs to filter out any modes wider or higher than the
422 * parameters max_width and max_height indicate.
424 * The drivers must also prune any modes no longer valid from
425 * &drm_connector.modes. Furthermore it must update
426 * &drm_connector.status and &drm_connector.edid. If no EDID has been
427 * received for this output connector->edid must be NULL.
429 * Drivers using the probe helpers should use
430 * drm_helper_probe_single_connector_modes() or
431 * drm_helper_probe_single_connector_modes_nomerge() to implement this
436 * The number of modes detected and filled into &drm_connector.modes.
438 int (*fill_modes
)(struct drm_connector
*connector
, uint32_t max_width
, uint32_t max_height
);
443 * This is the legacy entry point to update a property attached to the
446 * Drivers implementing atomic modeset should use
447 * drm_atomic_helper_connector_set_property() to implement this hook.
449 * This callback is optional if the driver does not support any legacy
450 * driver-private properties.
454 * 0 on success or a negative error code on failure.
456 int (*set_property
)(struct drm_connector
*connector
, struct drm_property
*property
,
462 * This optional hook can be used to register additional userspace
463 * interfaces attached to the connector, light backlight control, i2c,
464 * DP aux or similar interfaces. It is called late in the driver load
465 * sequence from drm_connector_register() when registering all the
466 * core drm connector interfaces. Everything added from this callback
467 * should be unregistered in the early_unregister callback.
469 * This is called while holding &drm_connector.mutex.
473 * 0 on success, or a negative error code on failure.
475 int (*late_register
)(struct drm_connector
*connector
);
480 * This optional hook should be used to unregister the additional
481 * userspace interfaces attached to the connector from
482 * late_register(). It is called from drm_connector_unregister(),
483 * early in the driver unload sequence to disable userspace access
484 * before data structures are torndown.
486 * This is called while holding &drm_connector.mutex.
488 void (*early_unregister
)(struct drm_connector
*connector
);
493 * Clean up connector resources. This is called at driver unload time
494 * through drm_mode_config_cleanup(). It can also be called at runtime
495 * when a connector is being hot-unplugged for drivers that support
496 * connector hotplugging (e.g. DisplayPort MST).
498 void (*destroy
)(struct drm_connector
*connector
);
501 * @atomic_duplicate_state:
503 * Duplicate the current atomic state for this connector and return it.
504 * The core and helpers guarantee that any atomic state duplicated with
505 * this hook and still owned by the caller (i.e. not transferred to the
506 * driver by calling &drm_mode_config_funcs.atomic_commit) will be
507 * cleaned up by calling the @atomic_destroy_state hook in this
510 * Atomic drivers which don't subclass &struct drm_connector_state should use
511 * drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
512 * state structure to extend it with driver-private state should use
513 * __drm_atomic_helper_connector_duplicate_state() to make sure shared state is
514 * duplicated in a consistent fashion across drivers.
516 * It is an error to call this hook before &drm_connector.state has been
517 * initialized correctly.
521 * If the duplicate state references refcounted resources this hook must
522 * acquire a reference for each of them. The driver must release these
523 * references again in @atomic_destroy_state.
527 * Duplicated atomic state or NULL when the allocation failed.
529 struct drm_connector_state
*(*atomic_duplicate_state
)(struct drm_connector
*connector
);
532 * @atomic_destroy_state:
534 * Destroy a state duplicated with @atomic_duplicate_state and release
535 * or unreference all resources it references
537 void (*atomic_destroy_state
)(struct drm_connector
*connector
,
538 struct drm_connector_state
*state
);
541 * @atomic_set_property:
543 * Decode a driver-private property value and store the decoded value
544 * into the passed-in state structure. Since the atomic core decodes all
545 * standardized properties (even for extensions beyond the core set of
546 * properties which might not be implemented by all drivers) this
547 * requires drivers to subclass the state structure.
549 * Such driver-private properties should really only be implemented for
550 * truly hardware/vendor specific state. Instead it is preferred to
551 * standardize atomic extension and decode the properties used to expose
552 * such an extension in the core.
554 * Do not call this function directly, use
555 * drm_atomic_connector_set_property() instead.
557 * This callback is optional if the driver does not support any
558 * driver-private atomic properties.
562 * This function is called in the state assembly phase of atomic
563 * modesets, which can be aborted for any reason (including on
564 * userspace's request to just check whether a configuration would be
565 * possible). Drivers MUST NOT touch any persistent state (hardware or
566 * software) or data structures except the passed in @state parameter.
568 * Also since userspace controls in which order properties are set this
569 * function must not do any input validation (since the state update is
570 * incomplete and hence likely inconsistent). Instead any such input
571 * validation must be done in the various atomic_check callbacks.
575 * 0 if the property has been found, -EINVAL if the property isn't
576 * implemented by the driver (which shouldn't ever happen, the core only
577 * asks for properties attached to this connector). No other validation
578 * is allowed by the driver. The core already checks that the property
579 * value is within the range (integer, valid enum value, ...) the driver
580 * set when registering the property.
582 int (*atomic_set_property
)(struct drm_connector
*connector
,
583 struct drm_connector_state
*state
,
584 struct drm_property
*property
,
588 * @atomic_get_property:
590 * Reads out the decoded driver-private property. This is used to
591 * implement the GETCONNECTOR IOCTL.
593 * Do not call this function directly, use
594 * drm_atomic_connector_get_property() instead.
596 * This callback is optional if the driver does not support any
597 * driver-private atomic properties.
601 * 0 on success, -EINVAL if the property isn't implemented by the
602 * driver (which shouldn't ever happen, the core only asks for
603 * properties attached to this connector).
605 int (*atomic_get_property
)(struct drm_connector
*connector
,
606 const struct drm_connector_state
*state
,
607 struct drm_property
*property
,
611 * @atomic_print_state:
613 * If driver subclasses &struct drm_connector_state, it should implement
614 * this optional hook for printing additional driver specific state.
616 * Do not call this directly, use drm_atomic_connector_print_state()
619 void (*atomic_print_state
)(struct drm_printer
*p
,
620 const struct drm_connector_state
*state
);
623 /* mode specified on the command line */
624 struct drm_cmdline_mode
{
626 bool refresh_specified
;
635 enum drm_connector_force force
;
639 * struct drm_connector - central DRM connector control structure
640 * @dev: parent DRM device
641 * @kdev: kernel device for sysfs attributes
642 * @attr: sysfs attributes
643 * @head: list management
644 * @base: base KMS object
645 * @name: human readable name, can be overwritten by the driver
646 * @connector_type: one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
647 * @connector_type_id: index into connector type enum
648 * @interlace_allowed: can this connector handle interlaced modes?
649 * @doublescan_allowed: can this connector handle doublescan?
650 * @stereo_allowed: can this connector handle stereo modes?
651 * @funcs: connector control functions
652 * @edid_blob_ptr: DRM property containing EDID if present
653 * @properties: property tracking for this connector
654 * @dpms: current dpms state
655 * @helper_private: mid-layer private data
656 * @cmdline_mode: mode line parsed from the kernel cmdline for this connector
657 * @force: a DRM_FORCE_<foo> state for forced mode sets
658 * @override_edid: has the EDID been overwritten through debugfs for testing?
659 * @encoder_ids: valid encoders for this connector
660 * @encoder: encoder driving this connector, if any
661 * @eld: EDID-like data, if present
662 * @latency_present: AV delay info from ELD, if found
663 * @video_latency: video latency info from ELD, if found
664 * @audio_latency: audio latency info from ELD, if found
665 * @null_edid_counter: track sinks that give us all zeros for the EDID
666 * @bad_edid_counter: track sinks that give us an EDID with invalid checksum
667 * @edid_corrupt: indicates whether the last read EDID was corrupt
668 * @debugfs_entry: debugfs directory for this connector
669 * @has_tile: is this connector connected to a tiled monitor
670 * @tile_group: tile group for the connected monitor
671 * @tile_is_single_monitor: whether the tile is one monitor housing
672 * @num_h_tile: number of horizontal tiles in the tile group
673 * @num_v_tile: number of vertical tiles in the tile group
674 * @tile_h_loc: horizontal location of this tile
675 * @tile_v_loc: vertical location of this tile
676 * @tile_h_size: horizontal size of this tile.
677 * @tile_v_size: vertical size of this tile.
679 * Each connector may be connected to one or more CRTCs, or may be clonable by
680 * another connector if they can share a CRTC. Each connector also has a specific
681 * position in the broader display (referred to as a 'screen' though it could
682 * span multiple monitors).
684 struct drm_connector
{
685 struct drm_device
*dev
;
687 struct device_attribute
*attr
;
688 struct list_head head
;
690 struct drm_mode_object base
;
695 * @mutex: Lock for general connector state, but currently only protects
696 * @registered. Most of the connector state is still protected by
697 * &drm_mode_config.mutex.
702 * @index: Compacted connector index, which matches the position inside
703 * the mode_config.list for drivers not supporting hot-add/removing. Can
704 * be used as an array index. It is invariant over the lifetime of the
710 int connector_type_id
;
711 bool interlace_allowed
;
712 bool doublescan_allowed
;
715 * @registered: Is this connector exposed (registered) with userspace?
716 * Protected by @mutex.
722 * Modes available on this connector (from fill_modes() + user).
723 * Protected by &drm_mode_config.mutex.
725 struct list_head modes
;
729 * One of the drm_connector_status enums (connected, not, or unknown).
730 * Protected by &drm_mode_config.mutex.
732 enum drm_connector_status status
;
736 * These are modes added by probing with DDC or the BIOS, before
737 * filtering is applied. Used by the probe helpers. Protected by
738 * &drm_mode_config.mutex.
740 struct list_head probed_modes
;
743 * @display_info: Display information is filled from EDID information
744 * when a display is detected. For non hot-pluggable displays such as
745 * flat panels in embedded systems, the driver should initialize the
746 * &drm_display_info.width_mm and &drm_display_info.height_mm fields
747 * with the physical size of the display.
749 * Protected by &drm_mode_config.mutex.
751 struct drm_display_info display_info
;
752 const struct drm_connector_funcs
*funcs
;
754 struct drm_property_blob
*edid_blob_ptr
;
755 struct drm_object_properties properties
;
760 * DRM blob property data for the DP MST path property.
762 struct drm_property_blob
*path_blob_ptr
;
767 * DRM blob property data for the tile property (used mostly by DP MST).
768 * This is meant for screens which are driven through separate display
769 * pipelines represented by &drm_crtc, which might not be running with
770 * genlocked clocks. For tiled panels which are genlocked, like
771 * dual-link LVDS or dual-link DSI, the driver should try to not expose
772 * the tiling and virtualize both &drm_crtc and &drm_plane if needed.
774 struct drm_property_blob
*tile_blob_ptr
;
776 /* should we poll this connector for connects and disconnects */
777 /* hot plug detectable */
778 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
779 /* poll for connections */
780 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
781 /* can cleanly poll for disconnections without flickering the screen */
782 /* DACs should rarely do this without a lot of testing */
783 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
788 * Connector polling mode, a combination of
790 * DRM_CONNECTOR_POLL_HPD
791 * The connector generates hotplug events and doesn't need to be
792 * periodically polled. The CONNECT and DISCONNECT flags must not
793 * be set together with the HPD flag.
795 * DRM_CONNECTOR_POLL_CONNECT
796 * Periodically poll the connector for connection.
798 * DRM_CONNECTOR_POLL_DISCONNECT
799 * Periodically poll the connector for disconnection.
801 * Set to 0 for connectors that don't support connection status
806 /* requested DPMS state */
809 const struct drm_connector_helper_funcs
*helper_private
;
811 /* forced on connector */
812 struct drm_cmdline_mode cmdline_mode
;
813 enum drm_connector_force force
;
816 #define DRM_CONNECTOR_MAX_ENCODER 3
817 uint32_t encoder_ids
[DRM_CONNECTOR_MAX_ENCODER
];
818 struct drm_encoder
*encoder
; /* currently active encoder */
820 #define MAX_ELD_BYTES 128
822 uint8_t eld
[MAX_ELD_BYTES
];
823 bool latency_present
[2];
824 int video_latency
[2]; /* [0]: progressive, [1]: interlaced */
825 int audio_latency
[2];
826 int null_edid_counter
; /* needed to workaround some HW bugs where we get all 0s */
827 unsigned bad_edid_counter
;
829 /* Flag for raw EDID header corruption - used in Displayport
830 * compliance testing - * Displayport Link CTS Core 1.2 rev1.1 4.2.2.6
834 struct dentry
*debugfs_entry
;
839 * Current atomic state for this connector.
841 * This is protected by @drm_mode_config.connection_mutex. Note that
842 * nonblocking atomic commits access the current connector state without
843 * taking locks. Either by going through the &struct drm_atomic_state
844 * pointers, see for_each_connector_in_state(),
845 * for_each_oldnew_connector_in_state(),
846 * for_each_old_connector_in_state() and
847 * for_each_new_connector_in_state(). Or through careful ordering of
848 * atomic commit operations as implemented in the atomic helpers, see
849 * &struct drm_crtc_commit.
851 struct drm_connector_state
*state
;
855 struct drm_tile_group
*tile_group
;
856 bool tile_is_single_monitor
;
858 uint8_t num_h_tile
, num_v_tile
;
859 uint8_t tile_h_loc
, tile_v_loc
;
860 uint16_t tile_h_size
, tile_v_size
;
863 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
865 int drm_connector_init(struct drm_device
*dev
,
866 struct drm_connector
*connector
,
867 const struct drm_connector_funcs
*funcs
,
869 int drm_connector_register(struct drm_connector
*connector
);
870 void drm_connector_unregister(struct drm_connector
*connector
);
871 int drm_mode_connector_attach_encoder(struct drm_connector
*connector
,
872 struct drm_encoder
*encoder
);
874 void drm_connector_cleanup(struct drm_connector
*connector
);
875 static inline unsigned drm_connector_index(struct drm_connector
*connector
)
877 return connector
->index
;
881 * drm_connector_lookup - lookup connector object
883 * @id: connector object id
885 * This function looks up the connector object specified by id
886 * add takes a reference to it.
888 static inline struct drm_connector
*drm_connector_lookup(struct drm_device
*dev
,
891 struct drm_mode_object
*mo
;
892 mo
= drm_mode_object_find(dev
, id
, DRM_MODE_OBJECT_CONNECTOR
);
893 return mo
? obj_to_connector(mo
) : NULL
;
897 * drm_connector_get - acquire a connector reference
898 * @connector: DRM connector
900 * This function increments the connector's refcount.
902 static inline void drm_connector_get(struct drm_connector
*connector
)
904 drm_mode_object_get(&connector
->base
);
908 * drm_connector_put - release a connector reference
909 * @connector: DRM connector
911 * This function decrements the connector's reference count and frees the
912 * object if the reference count drops to zero.
914 static inline void drm_connector_put(struct drm_connector
*connector
)
916 drm_mode_object_put(&connector
->base
);
920 * drm_connector_reference - acquire a connector reference
921 * @connector: DRM connector
923 * This is a compatibility alias for drm_connector_get() and should not be
926 static inline void drm_connector_reference(struct drm_connector
*connector
)
928 drm_connector_get(connector
);
932 * drm_connector_unreference - release a connector reference
933 * @connector: DRM connector
935 * This is a compatibility alias for drm_connector_put() and should not be
938 static inline void drm_connector_unreference(struct drm_connector
*connector
)
940 drm_connector_put(connector
);
943 const char *drm_get_connector_status_name(enum drm_connector_status status
);
944 const char *drm_get_subpixel_order_name(enum subpixel_order order
);
945 const char *drm_get_dpms_name(int val
);
946 const char *drm_get_dvi_i_subconnector_name(int val
);
947 const char *drm_get_dvi_i_select_name(int val
);
948 const char *drm_get_tv_subconnector_name(int val
);
949 const char *drm_get_tv_select_name(int val
);
951 int drm_mode_create_dvi_i_properties(struct drm_device
*dev
);
952 int drm_mode_create_tv_properties(struct drm_device
*dev
,
953 unsigned int num_modes
,
954 const char * const modes
[]);
955 int drm_mode_create_scaling_mode_property(struct drm_device
*dev
);
956 int drm_mode_create_aspect_ratio_property(struct drm_device
*dev
);
957 int drm_mode_create_suggested_offset_properties(struct drm_device
*dev
);
959 int drm_mode_connector_set_path_property(struct drm_connector
*connector
,
961 int drm_mode_connector_set_tile_property(struct drm_connector
*connector
);
962 int drm_mode_connector_update_edid_property(struct drm_connector
*connector
,
963 const struct edid
*edid
);
964 void drm_mode_connector_set_link_status_property(struct drm_connector
*connector
,
965 uint64_t link_status
);
968 * struct drm_tile_group - Tile group metadata
969 * @refcount: reference count
971 * @id: tile group id exposed to userspace
972 * @group_data: Sink-private data identifying this group
974 * @group_data corresponds to displayid vend/prod/serial for external screens
977 struct drm_tile_group
{
978 struct kref refcount
;
979 struct drm_device
*dev
;
984 struct drm_tile_group
*drm_mode_create_tile_group(struct drm_device
*dev
,
986 struct drm_tile_group
*drm_mode_get_tile_group(struct drm_device
*dev
,
988 void drm_mode_put_tile_group(struct drm_device
*dev
,
989 struct drm_tile_group
*tg
);
992 * drm_for_each_connector - iterate over all connectors
993 * @connector: the loop cursor
994 * @dev: the DRM device
996 * Iterate over all connectors of @dev.
1000 * This iterator is not safe against hotadd/removal of connectors and is
1001 * deprecated. Use drm_for_each_connector_iter() instead.
1003 #define drm_for_each_connector(connector, dev) \
1004 list_for_each_entry(connector, &(dev)->mode_config.connector_list, head)
1007 * struct drm_connector_list_iter - connector_list iterator
1009 * This iterator tracks state needed to be able to walk the connector_list
1010 * within struct drm_mode_config. Only use together with
1011 * drm_connector_list_iter_begin(), drm_connector_list_iter_end() and
1012 * drm_connector_list_iter_next() respectively the convenience macro
1013 * drm_for_each_connector_iter().
1015 struct drm_connector_list_iter
{
1017 struct drm_device
*dev
;
1018 struct drm_connector
*conn
;
1021 void drm_connector_list_iter_begin(struct drm_device
*dev
,
1022 struct drm_connector_list_iter
*iter
);
1023 struct drm_connector
*
1024 drm_connector_list_iter_next(struct drm_connector_list_iter
*iter
);
1025 void drm_connector_list_iter_end(struct drm_connector_list_iter
*iter
);
1028 * drm_for_each_connector_iter - connector_list iterator macro
1029 * @connector: &struct drm_connector pointer used as cursor
1030 * @iter: &struct drm_connector_list_iter
1032 * Note that @connector is only valid within the list body, if you want to use
1033 * @connector after calling drm_connector_list_iter_end() then you need to grab
1034 * your own reference first using drm_connector_begin().
1036 #define drm_for_each_connector_iter(connector, iter) \
1037 while ((connector = drm_connector_list_iter_next(iter)))