2 * Copyright © 2006 Keith Packard
3 * Copyright © 2007-2008 Dave Airlie
4 * Copyright © 2007-2008 Intel Corporation
5 * Jesse Barnes <jesse.barnes@intel.com>
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
25 #ifndef __DRM_CRTC_H__
26 #define __DRM_CRTC_H__
28 #include <linux/i2c.h>
29 #include <linux/spinlock.h>
30 #include <linux/types.h>
31 #include <linux/idr.h>
33 #include <linux/hdmi.h>
34 #include <linux/media-bus-format.h>
35 #include <uapi/drm/drm_mode.h>
36 #include <uapi/drm/drm_fourcc.h>
37 #include <drm/drm_modeset_lock.h>
41 struct drm_framebuffer;
42 struct drm_object_properties;
48 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
49 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
50 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
51 #define DRM_MODE_OBJECT_MODE 0xdededede
52 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
53 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
54 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
55 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
56 #define DRM_MODE_OBJECT_ANY 0
58 struct drm_mode_object {
61 struct drm_object_properties *properties;
64 #define DRM_OBJECT_MAX_PROPERTY 24
65 struct drm_object_properties {
66 int count, atomic_count;
67 /* NOTE: if we ever start dynamically destroying properties (ie.
68 * not at drm_mode_config_cleanup() time), then we'd have to do
69 * a better job of detaching property from mode objects to avoid
70 * dangling property pointers:
72 struct drm_property *properties[DRM_OBJECT_MAX_PROPERTY];
73 /* do not read/write values directly, but use drm_object_property_get_value()
74 * and drm_object_property_set_value():
76 uint64_t values[DRM_OBJECT_MAX_PROPERTY];
79 static inline int64_t U642I64(uint64_t val)
81 return (int64_t)*((int64_t *)&val);
83 static inline uint64_t I642U64(int64_t val)
85 return (uint64_t)*((uint64_t *)&val);
88 /* rotation property bits */
89 #define DRM_ROTATE_MASK 0x0f
90 #define DRM_ROTATE_0 0
91 #define DRM_ROTATE_90 1
92 #define DRM_ROTATE_180 2
93 #define DRM_ROTATE_270 3
94 #define DRM_REFLECT_MASK (~DRM_ROTATE_MASK)
95 #define DRM_REFLECT_X 4
96 #define DRM_REFLECT_Y 5
98 enum drm_connector_force {
99 DRM_FORCE_UNSPECIFIED,
101 DRM_FORCE_ON, /* force on analog part normally */
102 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
105 #include <drm/drm_modes.h>
107 enum drm_connector_status {
108 connector_status_connected = 1,
109 connector_status_disconnected = 2,
110 connector_status_unknown = 3,
113 enum subpixel_order {
115 SubPixelHorizontalRGB,
116 SubPixelHorizontalBGR,
124 * struct drm_scrambling: sink's scrambling support.
126 struct drm_scrambling {
128 * @supported: scrambling supported for rates > 340 Mhz.
132 * @low_rates: scrambling supported for rates <= 340 Mhz.
138 * struct drm_scdc - Information about scdc capabilities of a HDMI 2.0 sink
140 * Provides SCDC register support and capabilities related information on a
141 * HDMI 2.0 sink. In case of a HDMI 1.4 sink, all parameter must be 0.
145 * @supported: status control & data channel present.
149 * @read_request: sink is capable of generating scdc read request.
153 * @scrambling: sink's scrambling capabilities
155 struct drm_scrambling scrambling;
160 * struct drm_hdmi_info - runtime information about the connected HDMI sink
162 * Describes if a given display supports advanced HDMI 2.0 features.
163 * This information is available in CEA-861-F extension blocks (like HF-VSDB).
165 struct drm_hdmi_info {
166 struct drm_scdc scdc;
169 #define DRM_COLOR_FORMAT_RGB444 (1<<0)
170 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
171 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
173 * Describes a given display (e.g. CRT or flat panel) and its limitations.
175 struct drm_display_info {
176 char name[DRM_DISPLAY_INFO_LEN];
179 unsigned int width_mm;
180 unsigned int height_mm;
182 /* Clock limits FIXME: storage format */
183 unsigned int min_vfreq, max_vfreq;
184 unsigned int min_hfreq, max_hfreq;
185 unsigned int pixel_clock;
188 enum subpixel_order subpixel_order;
191 const u32 *bus_formats;
192 unsigned int num_bus_formats;
195 * @max_tmds_clock: Maximum TMDS clock rate supported by the
196 * sink in kHz. 0 means undefined.
201 * @dvi_dual: Dual-link DVI sink?
205 /* Mask of supported hdmi deep color modes */
206 u8 edid_hdmi_dc_modes;
211 * @hdmi: advance features of a HDMI sink.
213 struct drm_hdmi_info hdmi;
216 /* data corresponds to displayid vend/prod/serial */
217 struct drm_tile_group {
218 struct kref refcount;
219 struct drm_device *dev;
224 struct drm_framebuffer_funcs {
225 /* note: use drm_framebuffer_remove() */
226 void (*destroy)(struct drm_framebuffer *framebuffer);
227 int (*create_handle)(struct drm_framebuffer *fb,
228 struct drm_file *file_priv,
229 unsigned int *handle);
231 * Optional callback for the dirty fb ioctl.
233 * Userspace can notify the driver via this callback
234 * that a area of the framebuffer has changed and should
235 * be flushed to the display hardware.
237 * See documentation in drm_mode.h for the struct
238 * drm_mode_fb_dirty_cmd for more information as all
239 * the semantics and arguments have a one to one mapping
242 int (*dirty)(struct drm_framebuffer *framebuffer,
243 struct drm_file *file_priv, unsigned flags,
244 unsigned color, struct drm_clip_rect *clips,
248 struct drm_framebuffer {
249 struct drm_device *dev;
251 * Note that the fb is refcounted for the benefit of driver internals,
252 * for example some hw, disabling a CRTC/plane is asynchronous, and
253 * scanout does not actually complete until the next vblank. So some
254 * cleanup (like releasing the reference(s) on the backing GEM bo(s))
255 * should be deferred. In cases like this, the driver would like to
256 * hold a ref to the fb even though it has already been removed from
257 * userspace perspective.
259 struct kref refcount;
261 * Place on the dev->mode_config.fb_list, access protected by
262 * dev->mode_config.fb_lock.
264 struct list_head head;
265 struct drm_mode_object base;
266 const struct drm_framebuffer_funcs *funcs;
267 unsigned int pitches[4];
268 unsigned int offsets[4];
269 uint64_t modifier[4];
272 /* depth can be 15 or 16 */
276 uint32_t pixel_format; /* fourcc format */
277 struct list_head filp_head;
280 struct drm_property_blob {
281 struct drm_mode_object base;
282 struct drm_device *dev;
283 struct kref refcount;
284 struct list_head head_global;
285 struct list_head head_file;
287 unsigned char data[];
290 struct drm_property_enum {
292 struct list_head head;
293 char name[DRM_PROP_NAME_LEN];
296 struct drm_property {
297 struct list_head head;
298 struct drm_mode_object base;
300 char name[DRM_PROP_NAME_LEN];
303 struct drm_device *dev;
305 struct list_head enum_list;
309 struct drm_connector;
311 struct drm_pending_vblank_event;
314 struct drm_atomic_state;
317 * struct drm_crtc_state - mutable CRTC state
318 * @crtc: backpointer to the CRTC
319 * @enable: whether the CRTC should be enabled, gates all other state
320 * @active: whether the CRTC is actively displaying (used for DPMS)
321 * @planes_changed: planes on this crtc are updated
322 * @mode_changed: crtc_state->mode or crtc_state->enable has been changed
323 * @active_changed: crtc_state->active has been toggled.
324 * @connectors_changed: connectors to this crtc have been updated
325 * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
326 * @last_vblank_count: for helpers and drivers to capture the vblank of the
327 * update to ensure framebuffer cleanup isn't done too early
328 * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
329 * @mode: current mode timings
330 * @event: optional pointer to a DRM event to signal upon completion of the
332 * @state: backpointer to global drm_atomic_state
334 * Note that the distinction between @enable and @active is rather subtile:
335 * Flipping @active while @enable is set without changing anything else may
336 * never return in a failure from the ->atomic_check callback. Userspace assumes
337 * that a DPMS On will always succeed. In other words: @enable controls resource
338 * assignment, @active controls the actual hardware state.
340 struct drm_crtc_state {
341 struct drm_crtc *crtc;
346 /* computed state bits used by helpers and drivers */
347 bool planes_changed : 1;
348 bool mode_changed : 1;
349 bool active_changed : 1;
350 bool connectors_changed : 1;
352 /* attached planes bitmask:
353 * WARNING: transitional helpers do not maintain plane_mask so
354 * drivers not converted over to atomic helpers should not rely
355 * on plane_mask being accurate!
359 /* last_vblank_count: for vblank waits before cleanup */
360 u32 last_vblank_count;
362 /* adjusted_mode: for use by helpers and drivers */
363 struct drm_display_mode adjusted_mode;
365 struct drm_display_mode mode;
367 /* blob property to expose current mode to atomic userspace */
368 struct drm_property_blob *mode_blob;
370 struct drm_pending_vblank_event *event;
372 struct drm_atomic_state *state;
376 * struct drm_crtc_funcs - control CRTCs for a given device
377 * @save: save CRTC state
378 * @restore: restore CRTC state
379 * @reset: reset CRTC after state has been invalidated (e.g. resume)
380 * @cursor_set: setup the cursor
381 * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set
382 * @cursor_move: move the cursor
383 * @gamma_set: specify color ramp for CRTC
384 * @destroy: deinit and free object
385 * @set_property: called when a property is changed
386 * @set_config: apply a new CRTC configuration
387 * @page_flip: initiate a page flip
388 * @atomic_duplicate_state: duplicate the atomic state for this CRTC
389 * @atomic_destroy_state: destroy an atomic state for this CRTC
390 * @atomic_set_property: set a property on an atomic state for this CRTC
391 * (do not call directly, use drm_atomic_crtc_set_property())
392 * @atomic_get_property: get a property on an atomic state for this CRTC
393 * (do not call directly, use drm_atomic_crtc_get_property())
395 * The drm_crtc_funcs structure is the central CRTC management structure
396 * in the DRM. Each CRTC controls one or more connectors (note that the name
397 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
398 * connectors, not just CRTs).
400 * Each driver is responsible for filling out this structure at startup time,
401 * in addition to providing other modesetting features, like i2c and DDC
404 struct drm_crtc_funcs {
405 /* Save CRTC state */
406 void (*save)(struct drm_crtc *crtc); /* suspend? */
407 /* Restore CRTC state */
408 void (*restore)(struct drm_crtc *crtc); /* resume? */
409 /* Reset CRTC state */
410 void (*reset)(struct drm_crtc *crtc);
412 /* cursor controls */
413 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
414 uint32_t handle, uint32_t width, uint32_t height);
415 int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
416 uint32_t handle, uint32_t width, uint32_t height,
417 int32_t hot_x, int32_t hot_y);
418 int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
420 /* Set gamma on the CRTC */
421 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
422 uint32_t start, uint32_t size);
423 /* Object destroy routine */
424 void (*destroy)(struct drm_crtc *crtc);
426 int (*set_config)(struct drm_mode_set *set);
429 * Flip to the given framebuffer. This implements the page
430 * flip ioctl described in drm_mode.h, specifically, the
431 * implementation must return immediately and block all
432 * rendering to the current fb until the flip has completed.
433 * If userspace set the event flag in the ioctl, the event
434 * argument will point to an event to send back when the flip
435 * completes, otherwise it will be NULL.
437 int (*page_flip)(struct drm_crtc *crtc,
438 struct drm_framebuffer *fb,
439 struct drm_pending_vblank_event *event,
442 int (*set_property)(struct drm_crtc *crtc,
443 struct drm_property *property, uint64_t val);
445 /* atomic update handling */
446 struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc);
447 void (*atomic_destroy_state)(struct drm_crtc *crtc,
448 struct drm_crtc_state *state);
449 int (*atomic_set_property)(struct drm_crtc *crtc,
450 struct drm_crtc_state *state,
451 struct drm_property *property,
453 int (*atomic_get_property)(struct drm_crtc *crtc,
454 const struct drm_crtc_state *state,
455 struct drm_property *property,
461 * This optional hook can be used to register additional userspace
462 * interfaces attached to the crtc like debugfs interfaces.
463 * It is called late in the driver load sequence from drm_dev_register().
464 * Everything added from this callback should be unregistered in
465 * the early_unregister callback.
469 * 0 on success, or a negative error code on failure.
471 int (*late_register)(struct drm_crtc *crtc);
476 * This optional hook should be used to unregister the additional
477 * userspace interfaces attached to the crtc from
478 * late_unregister(). It is called from drm_dev_unregister(),
479 * early in the driver unload sequence to disable userspace access
480 * before data structures are torndown.
482 void (*early_unregister)(struct drm_crtc *crtc);
486 * struct drm_crtc - central CRTC control structure
487 * @dev: parent DRM device
488 * @port: OF node used by drm_of_find_possible_crtcs()
489 * @head: list management
490 * @mutex: per-CRTC locking
491 * @base: base KMS object for ID tracking etc.
492 * @primary: primary plane for this CRTC
493 * @cursor: cursor plane for this CRTC
494 * @cursor_x: current x position of the cursor, used for universal cursor planes
495 * @cursor_y: current y position of the cursor, used for universal cursor planes
496 * @enabled: is this CRTC enabled?
497 * @mode: current mode timings
498 * @hwmode: mode timings as programmed to hw regs
499 * @x: x position on screen
500 * @y: y position on screen
501 * @funcs: CRTC control functions
502 * @gamma_size: size of gamma ramp
503 * @gamma_store: gamma ramp values
504 * @helper_private: mid-layer private data
505 * @properties: property tracking for this CRTC
506 * @state: current atomic state for this CRTC
507 * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for
510 * Each CRTC may have one or more connectors associated with it. This structure
511 * allows the CRTC to be controlled.
514 struct drm_device *dev;
515 struct device_node *port;
516 struct list_head head;
521 * This provides a read lock for the overall crtc state (mode, dpms
522 * state, ...) and a write lock for everything which can be update
523 * without a full modeset (fb, cursor data, ...)
525 struct drm_modeset_lock mutex;
527 struct drm_mode_object base;
529 /* primary and cursor planes for CRTC */
530 struct drm_plane *primary;
531 struct drm_plane *cursor;
533 /* position of cursor plane on crtc */
539 /* Requested mode from modesetting. */
540 struct drm_display_mode mode;
542 /* Programmed mode in hw, after adjustments for encoders,
543 * crtc, panel scaling etc. Needed for timestamping etc.
545 struct drm_display_mode hwmode;
548 const struct drm_crtc_funcs *funcs;
550 /* CRTC gamma size for reporting to userspace */
552 uint16_t *gamma_store;
554 /* if you are using the helper */
555 const void *helper_private;
557 struct drm_object_properties properties;
559 struct drm_crtc_state *state;
562 * For legacy crtc ioctls so that atomic drivers can get at the locking
565 struct drm_modeset_acquire_ctx *acquire_ctx;
569 * struct drm_connector_state - mutable connector state
570 * @connector: backpointer to the connector
571 * @crtc: CRTC to connect connector to, NULL if disabled
572 * @best_encoder: can be used by helpers and drivers to select the encoder
573 * @state: backpointer to global drm_atomic_state
575 struct drm_connector_state {
576 struct drm_connector *connector;
578 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_connector() */
580 struct drm_encoder *best_encoder;
582 struct drm_atomic_state *state;
586 * struct drm_connector_funcs - control connectors on a given device
587 * @dpms: set power state
588 * @save: save connector state
589 * @restore: restore connector state
590 * @reset: reset connector after state has been invalidated (e.g. resume)
591 * @detect: is this connector active?
592 * @fill_modes: fill mode list for this connector
593 * @set_property: property for this connector may need an update
594 * @destroy: make object go away
595 * @force: notify the driver that the connector is forced on
596 * @atomic_duplicate_state: duplicate the atomic state for this connector
597 * @atomic_destroy_state: destroy an atomic state for this connector
598 * @atomic_set_property: set a property on an atomic state for this connector
599 * (do not call directly, use drm_atomic_connector_set_property())
600 * @atomic_get_property: get a property on an atomic state for this connector
601 * (do not call directly, use drm_atomic_connector_get_property())
603 * Each CRTC may have one or more connectors attached to it. The functions
604 * below allow the core DRM code to control connectors, enumerate available modes,
607 struct drm_connector_funcs {
608 int (*dpms)(struct drm_connector *connector, int mode);
609 void (*save)(struct drm_connector *connector);
610 void (*restore)(struct drm_connector *connector);
611 void (*reset)(struct drm_connector *connector);
613 /* Check to see if anything is attached to the connector.
614 * @force is set to false whilst polling, true when checking the
615 * connector due to user request. @force can be used by the driver
616 * to avoid expensive, destructive operations during automated
619 enum drm_connector_status (*detect)(struct drm_connector *connector,
621 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
622 int (*set_property)(struct drm_connector *connector, struct drm_property *property,
628 * This optional hook can be used to register additional userspace
629 * interfaces attached to the connector, light backlight control, i2c,
630 * DP aux or similar interfaces. It is called late in the driver load
631 * sequence from drm_connector_register() when registering all the
632 * core drm connector interfaces. Everything added from this callback
633 * should be unregistered in the early_unregister callback.
637 * 0 on success, or a negative error code on failure.
639 int (*late_register)(struct drm_connector *connector);
644 * This optional hook should be used to unregister the additional
645 * userspace interfaces attached to the connector from
646 * late_unregister(). It is called from drm_connector_unregister(),
647 * early in the driver unload sequence to disable userspace access
648 * before data structures are torndown.
650 void (*early_unregister)(struct drm_connector *connector);
652 void (*destroy)(struct drm_connector *connector);
653 void (*force)(struct drm_connector *connector);
655 /* atomic update handling */
656 struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
657 void (*atomic_destroy_state)(struct drm_connector *connector,
658 struct drm_connector_state *state);
659 int (*atomic_set_property)(struct drm_connector *connector,
660 struct drm_connector_state *state,
661 struct drm_property *property,
663 int (*atomic_get_property)(struct drm_connector *connector,
664 const struct drm_connector_state *state,
665 struct drm_property *property,
670 * struct drm_encoder_funcs - encoder controls
671 * @reset: reset state (e.g. at init or resume time)
672 * @destroy: cleanup and free associated data
674 * Encoders sit between CRTCs and connectors.
676 struct drm_encoder_funcs {
677 void (*reset)(struct drm_encoder *encoder);
678 void (*destroy)(struct drm_encoder *encoder);
683 * This optional hook can be used to register additional userspace
684 * interfaces attached to the encoder like debugfs interfaces.
685 * It is called late in the driver load sequence from drm_dev_register().
686 * Everything added from this callback should be unregistered in
687 * the early_unregister callback.
691 * 0 on success, or a negative error code on failure.
693 int (*late_register)(struct drm_encoder *encoder);
698 * This optional hook should be used to unregister the additional
699 * userspace interfaces attached to the encoder from
700 * late_unregister(). It is called from drm_dev_unregister(),
701 * early in the driver unload sequence to disable userspace access
702 * before data structures are torndown.
704 void (*early_unregister)(struct drm_encoder *encoder);
707 #define DRM_CONNECTOR_MAX_ENCODER 3
710 * struct drm_encoder - central DRM encoder structure
711 * @dev: parent DRM device
712 * @head: list management
713 * @base: base KMS object
714 * @name: encoder name
715 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
716 * @possible_crtcs: bitmask of potential CRTC bindings
717 * @possible_clones: bitmask of potential sibling encoders for cloning
718 * @crtc: currently bound CRTC
719 * @bridge: bridge associated to the encoder
720 * @funcs: control functions
721 * @helper_private: mid-layer private data
723 * CRTCs drive pixels to encoders, which convert them into signals
724 * appropriate for a given connector or set of connectors.
727 struct drm_device *dev;
728 struct list_head head;
730 struct drm_mode_object base;
733 uint32_t possible_crtcs;
734 uint32_t possible_clones;
736 struct drm_crtc *crtc;
737 struct drm_bridge *bridge;
738 const struct drm_encoder_funcs *funcs;
739 const void *helper_private;
742 /* should we poll this connector for connects and disconnects */
743 /* hot plug detectable */
744 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
745 /* poll for connections */
746 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
747 /* can cleanly poll for disconnections without flickering the screen */
748 /* DACs should rarely do this without a lot of testing */
749 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
751 #define MAX_ELD_BYTES 128
754 * struct drm_connector - central DRM connector control structure
755 * @dev: parent DRM device
756 * @port: OF node used by find connector by node.
757 * @kdev: kernel device for sysfs attributes
758 * @attr: sysfs attributes
759 * @head: list management
760 * @base: base KMS object
761 * @name: connector name
762 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
763 * @connector_type_id: index into connector type enum
764 * @interlace_allowed: can this connector handle interlaced modes?
765 * @doublescan_allowed: can this connector handle doublescan?
766 * @stereo_allowed: can this connector handle stereo modes?
767 * @modes: modes available on this connector (from fill_modes() + user)
768 * @status: one of the drm_connector_status enums (connected, not, or unknown)
769 * @probed_modes: list of modes derived directly from the display
770 * @display_info: information about attached display (e.g. from EDID)
771 * @funcs: connector control functions
772 * @edid_blob_ptr: DRM property containing EDID if present
773 * @properties: property tracking for this connector
774 * @path_blob_ptr: DRM blob property data for the DP MST path property
775 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
776 * @dpms: current dpms state
777 * @helper_private: mid-layer private data
778 * @cmdline_mode: mode line parsed from the kernel cmdline for this connector
779 * @force: a %DRM_FORCE_<foo> state for forced mode sets
780 * @override_edid: has the EDID been overwritten through debugfs for testing?
781 * @encoder_ids: valid encoders for this connector
782 * @encoder: encoder driving this connector, if any
783 * @eld: EDID-like data, if present
784 * @latency_present: AV delay info from ELD, if found
785 * @video_latency: video latency info from ELD, if found
786 * @audio_latency: audio latency info from ELD, if found
787 * @null_edid_counter: track sinks that give us all zeros for the EDID
788 * @bad_edid_counter: track sinks that give us an EDID with invalid checksum
789 * @edid_corrupt: indicates whether the last read EDID was corrupt
790 * @debugfs_entry: debugfs directory for this connector
791 * @state: current atomic state for this connector
792 * @has_tile: is this connector connected to a tiled monitor
793 * @tile_group: tile group for the connected monitor
794 * @tile_is_single_monitor: whether the tile is one monitor housing
795 * @num_h_tile: number of horizontal tiles in the tile group
796 * @num_v_tile: number of vertical tiles in the tile group
797 * @tile_h_loc: horizontal location of this tile
798 * @tile_v_loc: vertical location of this tile
799 * @tile_h_size: horizontal size of this tile.
800 * @tile_v_size: vertical size of this tile.
802 * Each connector may be connected to one or more CRTCs, or may be clonable by
803 * another connector if they can share a CRTC. Each connector also has a specific
804 * position in the broader display (referred to as a 'screen' though it could
805 * span multiple monitors).
807 struct drm_connector {
808 struct drm_device *dev;
809 struct device_node *port;
811 struct device_attribute *attr;
812 struct list_head head;
814 struct drm_mode_object base;
818 int connector_type_id;
819 bool interlace_allowed;
820 bool doublescan_allowed;
822 struct list_head modes; /* list of modes on this connector */
824 enum drm_connector_status status;
826 /* these are modes added by probing with DDC or the BIOS */
827 struct list_head probed_modes;
829 struct drm_display_info display_info;
830 const struct drm_connector_funcs *funcs;
832 struct drm_property_blob *edid_blob_ptr;
833 struct drm_object_properties properties;
835 struct drm_property_blob *path_blob_ptr;
837 struct drm_property_blob *tile_blob_ptr;
839 uint8_t polled; /* DRM_CONNECTOR_POLL_* */
841 /* requested DPMS state */
844 const void *helper_private;
846 /* forced on connector */
847 struct drm_cmdline_mode cmdline_mode;
848 enum drm_connector_force force;
850 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
851 struct drm_encoder *encoder; /* currently active encoder */
855 uint8_t eld[MAX_ELD_BYTES];
856 bool latency_present[2];
857 int video_latency[2]; /* [0]: progressive, [1]: interlaced */
858 int audio_latency[2];
859 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
860 unsigned bad_edid_counter;
862 /* Flag for raw EDID header corruption - used in Displayport
863 * compliance testing - * Displayport Link CTS Core 1.2 rev1.1 4.2.2.6
867 struct dentry *debugfs_entry;
869 struct drm_connector_state *state;
873 struct drm_tile_group *tile_group;
874 bool tile_is_single_monitor;
876 uint8_t num_h_tile, num_v_tile;
877 uint8_t tile_h_loc, tile_v_loc;
878 uint16_t tile_h_size, tile_v_size;
882 * struct drm_plane_state - mutable plane state
883 * @plane: backpointer to the plane
884 * @crtc: currently bound CRTC, NULL if disabled
885 * @fb: currently bound framebuffer
886 * @fence: optional fence to wait for before scanning out @fb
887 * @crtc_x: left position of visible portion of plane on crtc
888 * @crtc_y: upper position of visible portion of plane on crtc
889 * @crtc_w: width of visible portion of plane on crtc
890 * @crtc_h: height of visible portion of plane on crtc
891 * @src_x: left position of visible portion of plane within
893 * @src_y: upper position of visible portion of plane within
895 * @src_w: width of visible portion of plane (in 16.16)
896 * @src_h: height of visible portion of plane (in 16.16)
897 * @state: backpointer to global drm_atomic_state
899 struct drm_plane_state {
900 struct drm_plane *plane;
902 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_plane() */
903 struct drm_framebuffer *fb; /* do not write directly, use drm_atomic_set_fb_for_plane() */
906 /* Signed dest location allows it to be partially off screen */
907 int32_t crtc_x, crtc_y;
908 uint32_t crtc_w, crtc_h;
910 /* Source values are 16.16 fixed point */
911 uint32_t src_x, src_y;
912 uint32_t src_h, src_w;
915 unsigned int rotation;
917 struct drm_atomic_state *state;
922 * struct drm_plane_funcs - driver plane control functions
923 * @update_plane: update the plane configuration
924 * @disable_plane: shut down the plane
925 * @destroy: clean up plane resources
926 * @reset: reset plane after state has been invalidated (e.g. resume)
927 * @set_property: called when a property is changed
928 * @atomic_duplicate_state: duplicate the atomic state for this plane
929 * @atomic_destroy_state: destroy an atomic state for this plane
930 * @atomic_set_property: set a property on an atomic state for this plane
931 * (do not call directly, use drm_atomic_plane_set_property())
932 * @atomic_get_property: get a property on an atomic state for this plane
933 * (do not call directly, use drm_atomic_plane_get_property())
935 struct drm_plane_funcs {
936 int (*update_plane)(struct drm_plane *plane,
937 struct drm_crtc *crtc, struct drm_framebuffer *fb,
938 int crtc_x, int crtc_y,
939 unsigned int crtc_w, unsigned int crtc_h,
940 uint32_t src_x, uint32_t src_y,
941 uint32_t src_w, uint32_t src_h);
942 int (*disable_plane)(struct drm_plane *plane);
943 void (*destroy)(struct drm_plane *plane);
944 void (*reset)(struct drm_plane *plane);
946 int (*set_property)(struct drm_plane *plane,
947 struct drm_property *property, uint64_t val);
949 /* atomic update handling */
950 struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane);
951 void (*atomic_destroy_state)(struct drm_plane *plane,
952 struct drm_plane_state *state);
953 int (*atomic_set_property)(struct drm_plane *plane,
954 struct drm_plane_state *state,
955 struct drm_property *property,
957 int (*atomic_get_property)(struct drm_plane *plane,
958 const struct drm_plane_state *state,
959 struct drm_property *property,
964 * This optional hook can be used to register additional userspace
965 * interfaces attached to the plane like debugfs interfaces.
966 * It is called late in the driver load sequence from drm_dev_register().
967 * Everything added from this callback should be unregistered in
968 * the early_unregister callback.
972 * 0 on success, or a negative error code on failure.
974 int (*late_register)(struct drm_plane *plane);
979 * This optional hook should be used to unregister the additional
980 * userspace interfaces attached to the plane from
981 * late_unregister(). It is called from drm_dev_unregister(),
982 * early in the driver unload sequence to disable userspace access
983 * before data structures are torndown.
985 void (*early_unregister)(struct drm_plane *plane);
988 enum drm_plane_type {
989 DRM_PLANE_TYPE_OVERLAY,
990 DRM_PLANE_TYPE_PRIMARY,
991 DRM_PLANE_TYPE_CURSOR,
995 * struct drm_plane - central DRM plane control structure
996 * @dev: DRM device this plane belongs to
997 * @parent: this plane share some resources with parent plane.
998 * @head: for list management
999 * @base: base mode object
1000 * @possible_crtcs: pipes this plane can be bound to
1001 * @format_types: array of formats supported by this plane
1002 * @format_count: number of formats supported
1003 * @format_default: driver hasn't supplied supported formats for the plane
1004 * @crtc: currently bound CRTC
1005 * @fb: currently bound fb
1006 * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by
1007 * drm_mode_set_config_internal() to implement correct refcounting.
1008 * @funcs: helper functions
1009 * @properties: property tracking for this plane
1010 * @type: type of plane (overlay, primary, cursor)
1011 * @state: current atomic state for this plane
1014 struct drm_device *dev;
1015 struct drm_plane *parent;
1016 struct list_head head;
1018 struct drm_modeset_lock mutex;
1020 struct drm_mode_object base;
1022 uint32_t possible_crtcs;
1023 uint32_t *format_types;
1024 unsigned int format_count;
1025 bool format_default;
1027 struct drm_crtc *crtc;
1028 struct drm_framebuffer *fb;
1030 struct drm_framebuffer *old_fb;
1032 const struct drm_plane_funcs *funcs;
1034 struct drm_object_properties properties;
1036 enum drm_plane_type type;
1038 const void *helper_private;
1040 struct drm_plane_state *state;
1044 * struct drm_bridge_funcs - drm_bridge control functions
1045 * @attach: Called during drm_bridge_attach
1046 * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge
1047 * @disable: Called right before encoder prepare, disables the bridge
1048 * @post_disable: Called right after encoder prepare, for lockstepped disable
1049 * @mode_set: Set this mode to the bridge
1050 * @pre_enable: Called right before encoder commit, for lockstepped commit
1051 * @enable: Called right after encoder commit, enables the bridge
1053 struct drm_bridge_funcs {
1054 int (*attach)(struct drm_bridge *bridge);
1055 bool (*mode_fixup)(struct drm_bridge *bridge,
1056 const struct drm_display_mode *mode,
1057 struct drm_display_mode *adjusted_mode);
1058 void (*disable)(struct drm_bridge *bridge);
1059 void (*post_disable)(struct drm_bridge *bridge);
1060 void (*mode_set)(struct drm_bridge *bridge,
1061 struct drm_display_mode *mode,
1062 struct drm_display_mode *adjusted_mode);
1063 void (*pre_enable)(struct drm_bridge *bridge);
1064 void (*enable)(struct drm_bridge *bridge);
1068 * struct drm_bridge - central DRM bridge control structure
1069 * @dev: DRM device this bridge belongs to
1070 * @encoder: encoder to which this bridge is connected
1071 * @next: the next bridge in the encoder chain
1072 * @of_node: device node pointer to the bridge
1073 * @list: to keep track of all added bridges
1074 * @funcs: control functions
1075 * @driver_private: pointer to the bridge driver's internal context
1078 struct drm_device *dev;
1079 struct drm_encoder *encoder;
1080 struct drm_bridge *next;
1082 struct device_node *of_node;
1084 struct list_head list;
1086 const struct drm_bridge_funcs *funcs;
1087 void *driver_private;
1091 * struct drm_atomic_state - the global state object for atomic updates
1092 * @dev: parent DRM device
1093 * @allow_modeset: allow full modeset
1094 * @legacy_cursor_update: hint to enforce legacy cursor ioctl semantics
1095 * @planes: pointer to array of plane pointers
1096 * @plane_states: pointer to array of plane states pointers
1097 * @crtcs: pointer to array of CRTC pointers
1098 * @crtc_states: pointer to array of CRTC states pointers
1099 * @num_connector: size of the @connectors and @connector_states arrays
1100 * @connectors: pointer to array of connector pointers
1101 * @connector_states: pointer to array of connector states pointers
1102 * @acquire_ctx: acquire context for this atomic modeset state update
1104 struct drm_atomic_state {
1105 struct drm_device *dev;
1106 bool allow_modeset : 1;
1107 bool legacy_cursor_update : 1;
1108 struct drm_plane **planes;
1109 struct drm_plane_state **plane_states;
1110 struct drm_crtc **crtcs;
1111 struct drm_crtc_state **crtc_states;
1113 struct drm_connector **connectors;
1114 struct drm_connector_state **connector_states;
1116 struct drm_modeset_acquire_ctx *acquire_ctx;
1121 * struct drm_mode_set - new values for a CRTC config change
1122 * @fb: framebuffer to use for new config
1123 * @crtc: CRTC whose configuration we're about to change
1124 * @mode: mode timings to use
1125 * @x: position of this CRTC relative to @fb
1126 * @y: position of this CRTC relative to @fb
1127 * @connectors: array of connectors to drive with this CRTC if possible
1128 * @num_connectors: size of @connectors array
1130 * Represents a single crtc the connectors that it drives with what mode
1131 * and from which framebuffer it scans out from.
1133 * This is used to set modes.
1135 struct drm_mode_set {
1136 struct drm_framebuffer *fb;
1137 struct drm_crtc *crtc;
1138 struct drm_display_mode *mode;
1143 struct drm_connector **connectors;
1144 size_t num_connectors;
1148 * struct drm_mode_config_funcs - basic driver provided mode setting functions
1149 * @fb_create: create a new framebuffer object
1150 * @output_poll_changed: function to handle output configuration changes
1151 * @atomic_check: check whether a given atomic state update is possible
1152 * @atomic_commit: commit an atomic state update previously verified with
1154 * @atomic_state_alloc: allocate a new atomic state
1155 * @atomic_state_clear: clear the atomic state
1156 * @atomic_state_free: free the atomic state
1158 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
1161 struct drm_mode_config_funcs {
1162 struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
1163 struct drm_file *file_priv,
1164 struct drm_mode_fb_cmd2 *mode_cmd);
1165 void (*output_poll_changed)(struct drm_device *dev);
1167 int (*atomic_check)(struct drm_device *dev,
1168 struct drm_atomic_state *a);
1169 int (*atomic_commit)(struct drm_device *dev,
1170 struct drm_atomic_state *a,
1172 struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev);
1173 void (*atomic_state_clear)(struct drm_atomic_state *state);
1174 void (*atomic_state_free)(struct drm_atomic_state *state);
1178 * struct drm_mode_config - Mode configuration control structure
1179 * @mutex: mutex protecting KMS related lists and structures
1180 * @connection_mutex: ww mutex protecting connector state and routing
1181 * @acquire_ctx: global implicit acquire context used by atomic drivers for
1183 * @idr_mutex: mutex for KMS ID allocation and management
1184 * @crtc_idr: main KMS ID tracking object
1185 * @fb_lock: mutex to protect fb state and lists
1186 * @num_fb: number of fbs available
1187 * @fb_list: list of framebuffers available
1188 * @num_connector: number of connectors on this device
1189 * @connector_list: list of connector objects
1190 * @num_encoder: number of encoders on this device
1191 * @encoder_list: list of encoder objects
1192 * @num_overlay_plane: number of overlay planes on this device
1193 * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device
1194 * @plane_list: list of plane objects
1195 * @num_crtc: number of CRTCs on this device
1196 * @crtc_list: list of CRTC objects
1197 * @property_list: list of property objects
1198 * @min_width: minimum pixel width on this device
1199 * @min_height: minimum pixel height on this device
1200 * @max_width: maximum pixel width on this device
1201 * @max_height: maximum pixel height on this device
1202 * @funcs: core driver provided mode setting functions
1203 * @fb_base: base address of the framebuffer
1204 * @poll_enabled: track polling support for this device
1205 * @poll_running: track polling status for this device
1206 * @output_poll_work: delayed work for polling in process context
1207 * @property_blob_list: list of all the blob property objects
1208 * @blob_lock: mutex for blob property allocation and management
1209 * @*_property: core property tracking
1210 * @preferred_depth: preferred RBG pixel depth, used by fb helpers
1211 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering
1212 * @async_page_flip: does this device support async flips on the primary plane?
1213 * @cursor_width: hint to userspace for max cursor width
1214 * @cursor_height: hint to userspace for max cursor height
1216 * Core mode resource tracking structure. All CRTC, encoders, and connectors
1217 * enumerated by the driver are added here, as are global properties. Some
1218 * global restrictions are also here, e.g. dimension restrictions.
1220 struct drm_mode_config {
1221 struct mutex mutex; /* protects configuration (mode lists etc.) */
1222 struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */
1223 struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
1224 struct mutex idr_mutex; /* for IDR management */
1225 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1226 struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1227 /* this is limited to one for now */
1229 struct mutex fb_lock; /* proctects global and per-file fb lists */
1231 struct list_head fb_list;
1234 struct list_head connector_list;
1236 struct list_head encoder_list;
1239 * Track # of overlay planes separately from # of total planes. By
1240 * default we only advertise overlay planes to userspace; if userspace
1241 * sets the "universal plane" capability bit, we'll go ahead and
1242 * expose all planes.
1244 int num_overlay_plane;
1245 int num_total_plane;
1246 int num_share_plane;
1247 int num_share_overlay_plane;
1248 struct list_head plane_list;
1251 struct list_head crtc_list;
1253 struct list_head property_list;
1255 int min_width, min_height;
1256 int max_width, max_height;
1257 const struct drm_mode_config_funcs *funcs;
1258 resource_size_t fb_base;
1260 /* output poll support */
1264 struct delayed_work output_poll_work;
1266 struct mutex blob_lock;
1268 /* pointers to share properties */
1269 struct drm_property *prop_share_id;
1270 struct drm_property *prop_share_flags;
1272 /* pointers to standard properties */
1273 struct list_head property_blob_list;
1274 struct drm_property *edid_property;
1275 struct drm_property *dpms_property;
1276 struct drm_property *path_property;
1277 struct drm_property *tile_property;
1278 struct drm_property *plane_type_property;
1279 struct drm_property *rotation_property;
1280 struct drm_property *prop_src_x;
1281 struct drm_property *prop_src_y;
1282 struct drm_property *prop_src_w;
1283 struct drm_property *prop_src_h;
1284 struct drm_property *prop_crtc_x;
1285 struct drm_property *prop_crtc_y;
1286 struct drm_property *prop_crtc_w;
1287 struct drm_property *prop_crtc_h;
1288 struct drm_property *prop_fb_id;
1289 struct drm_property *prop_crtc_id;
1290 struct drm_property *prop_active;
1291 struct drm_property *prop_mode_id;
1293 /* DVI-I properties */
1294 struct drm_property *dvi_i_subconnector_property;
1295 struct drm_property *dvi_i_select_subconnector_property;
1298 struct drm_property *tv_subconnector_property;
1299 struct drm_property *tv_select_subconnector_property;
1300 struct drm_property *tv_mode_property;
1301 struct drm_property *tv_left_margin_property;
1302 struct drm_property *tv_right_margin_property;
1303 struct drm_property *tv_top_margin_property;
1304 struct drm_property *tv_bottom_margin_property;
1305 struct drm_property *tv_brightness_property;
1306 struct drm_property *tv_contrast_property;
1307 struct drm_property *tv_flicker_reduction_property;
1308 struct drm_property *tv_overscan_property;
1309 struct drm_property *tv_saturation_property;
1310 struct drm_property *tv_hue_property;
1312 /* Optional properties */
1313 struct drm_property *scaling_mode_property;
1314 struct drm_property *aspect_ratio_property;
1315 struct drm_property *dirty_info_property;
1317 /* properties for virtual machine layout */
1318 struct drm_property *suggested_x_property;
1319 struct drm_property *suggested_y_property;
1321 /* dumb ioctl parameters */
1322 uint32_t preferred_depth, prefer_shadow;
1324 /* whether async page flip is supported or not */
1325 bool async_page_flip;
1327 /* whether the driver supports fb modifiers */
1328 bool allow_fb_modifiers;
1331 uint32_t cursor_width, cursor_height;
1335 * drm_for_each_plane_mask - iterate over planes specified by bitmask
1336 * @plane: the loop cursor
1337 * @dev: the DRM device
1338 * @plane_mask: bitmask of plane indices
1340 * Iterate over all planes specified by bitmask.
1342 #define drm_for_each_plane_mask(plane, dev, plane_mask) \
1343 list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \
1344 if ((plane_mask) & (1 << drm_plane_index(plane)))
1347 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
1348 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
1349 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
1350 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
1351 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
1352 #define obj_to_property(x) container_of(x, struct drm_property, base)
1353 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
1354 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
1356 struct drm_prop_enum_list {
1361 extern __printf(6, 7)
1362 int drm_crtc_init_with_planes(struct drm_device *dev,
1363 struct drm_crtc *crtc,
1364 struct drm_plane *primary,
1365 struct drm_plane *cursor,
1366 const struct drm_crtc_funcs *funcs,
1367 const char *name, ...);
1368 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
1369 extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
1372 * drm_crtc_mask - find the mask of a registered CRTC
1373 * @crtc: CRTC to find mask for
1375 * Given a registered CRTC, return the mask bit of that CRTC for an
1376 * encoder's possible_crtcs field.
1378 static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
1380 return 1 << drm_crtc_index(crtc);
1383 extern void drm_connector_ida_init(void);
1384 extern void drm_connector_ida_destroy(void);
1385 extern int drm_connector_init(struct drm_device *dev,
1386 struct drm_connector *connector,
1387 const struct drm_connector_funcs *funcs,
1388 int connector_type);
1389 int drm_connector_register(struct drm_connector *connector);
1390 void drm_connector_unregister(struct drm_connector *connector);
1392 extern void drm_connector_cleanup(struct drm_connector *connector);
1393 extern unsigned int drm_connector_index(struct drm_connector *connector);
1395 /* helpers to {un}register all connectors from sysfs for device */
1396 extern int drm_connector_register_all(struct drm_device *dev);
1397 extern void drm_connector_unregister_all(struct drm_device *dev);
1399 extern int drm_bridge_add(struct drm_bridge *bridge);
1400 extern void drm_bridge_remove(struct drm_bridge *bridge);
1401 extern struct drm_bridge *of_drm_find_bridge(struct device_node *np);
1402 extern int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge);
1404 bool drm_bridge_mode_fixup(struct drm_bridge *bridge,
1405 const struct drm_display_mode *mode,
1406 struct drm_display_mode *adjusted_mode);
1407 void drm_bridge_disable(struct drm_bridge *bridge);
1408 void drm_bridge_post_disable(struct drm_bridge *bridge);
1409 void drm_bridge_mode_set(struct drm_bridge *bridge,
1410 struct drm_display_mode *mode,
1411 struct drm_display_mode *adjusted_mode);
1412 void drm_bridge_pre_enable(struct drm_bridge *bridge);
1413 void drm_bridge_enable(struct drm_bridge *bridge);
1415 extern __printf(5, 6)
1416 int drm_encoder_init(struct drm_device *dev,
1417 struct drm_encoder *encoder,
1418 const struct drm_encoder_funcs *funcs,
1419 int encoder_type, const char *name, ...);
1422 * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
1423 * @encoder: encoder to test
1424 * @crtc: crtc to test
1426 * Return false if @encoder can't be driven by @crtc, true otherwise.
1428 static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
1429 struct drm_crtc *crtc)
1431 return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
1434 extern __printf(8, 9)
1435 int drm_universal_plane_init(struct drm_device *dev,
1436 struct drm_plane *plane,
1437 unsigned long possible_crtcs,
1438 const struct drm_plane_funcs *funcs,
1439 const uint32_t *formats,
1440 unsigned int format_count,
1441 enum drm_plane_type type,
1442 const char *name, ...);
1443 extern int drm_plane_init(struct drm_device *dev,
1444 struct drm_plane *plane,
1445 unsigned long possible_crtcs,
1446 const struct drm_plane_funcs *funcs,
1447 const uint32_t *formats, unsigned int format_count,
1449 extern int drm_share_plane_init(struct drm_device *dev, struct drm_plane *plane,
1450 struct drm_plane *parent,
1451 unsigned long possible_crtcs,
1452 const struct drm_plane_funcs *funcs,
1453 const uint32_t *formats,
1454 unsigned int format_count,
1455 enum drm_plane_type type);
1456 extern void drm_plane_cleanup(struct drm_plane *plane);
1457 extern unsigned int drm_plane_index(struct drm_plane *plane);
1458 extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx);
1459 extern void drm_plane_force_disable(struct drm_plane *plane);
1460 extern int drm_plane_check_pixel_format(const struct drm_plane *plane,
1462 extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
1463 int *hdisplay, int *vdisplay);
1464 extern int drm_crtc_check_viewport(const struct drm_crtc *crtc,
1466 const struct drm_display_mode *mode,
1467 const struct drm_framebuffer *fb);
1469 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
1471 extern const char *drm_get_connector_status_name(enum drm_connector_status status);
1472 extern const char *drm_get_subpixel_order_name(enum subpixel_order order);
1473 extern const char *drm_get_dpms_name(int val);
1474 extern const char *drm_get_dvi_i_subconnector_name(int val);
1475 extern const char *drm_get_dvi_i_select_name(int val);
1476 extern const char *drm_get_tv_subconnector_name(int val);
1477 extern const char *drm_get_tv_select_name(int val);
1478 extern const char *drm_get_connector_name(int val);
1479 extern void drm_fb_release(struct drm_file *file_priv);
1480 extern void drm_property_destroy_user_blobs(struct drm_device *dev,
1481 struct drm_file *file_priv);
1482 extern bool drm_probe_ddc(struct i2c_adapter *adapter);
1483 extern struct edid *drm_get_edid(struct drm_connector *connector,
1484 struct i2c_adapter *adapter);
1485 extern struct edid *drm_edid_duplicate(const struct edid *edid);
1486 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
1487 extern void drm_mode_config_init(struct drm_device *dev);
1488 extern void drm_mode_config_reset(struct drm_device *dev);
1489 extern void drm_mode_config_cleanup(struct drm_device *dev);
1491 extern int drm_mode_connector_set_path_property(struct drm_connector *connector,
1493 int drm_mode_connector_set_tile_property(struct drm_connector *connector);
1494 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
1495 const struct edid *edid);
1497 extern int drm_display_info_set_bus_formats(struct drm_display_info *info,
1499 unsigned int num_formats);
1501 static inline bool drm_property_type_is(struct drm_property *property,
1504 /* instanceof for props.. handles extended type vs original types: */
1505 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1506 return (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) == type;
1507 return property->flags & type;
1510 static inline bool drm_property_type_valid(struct drm_property *property)
1512 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1513 return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1514 return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1517 extern int drm_object_property_set_value(struct drm_mode_object *obj,
1518 struct drm_property *property,
1520 extern int drm_object_property_get_value(struct drm_mode_object *obj,
1521 struct drm_property *property,
1523 extern int drm_framebuffer_init(struct drm_device *dev,
1524 struct drm_framebuffer *fb,
1525 const struct drm_framebuffer_funcs *funcs);
1526 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
1528 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb);
1529 extern void drm_framebuffer_reference(struct drm_framebuffer *fb);
1530 extern void drm_framebuffer_remove(struct drm_framebuffer *fb);
1531 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
1532 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb);
1534 extern void drm_object_attach_property(struct drm_mode_object *obj,
1535 struct drm_property *property,
1537 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1538 const char *name, int num_values);
1539 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
1541 const struct drm_prop_enum_list *props,
1543 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
1544 int flags, const char *name,
1545 const struct drm_prop_enum_list *props,
1547 uint64_t supported_bits);
1548 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
1550 uint64_t min, uint64_t max);
1551 struct drm_property *drm_property_create_signed_range(struct drm_device *dev,
1552 int flags, const char *name,
1553 int64_t min, int64_t max);
1554 struct drm_property *drm_property_create_object(struct drm_device *dev,
1555 int flags, const char *name, uint32_t type);
1556 struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags,
1558 struct drm_property_blob *drm_property_create_blob(struct drm_device *dev,
1561 struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev,
1563 struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob);
1564 void drm_property_unreference_blob(struct drm_property_blob *blob);
1565 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
1566 extern int drm_property_add_enum(struct drm_property *property, int index,
1567 uint64_t value, const char *name);
1568 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
1569 extern int drm_mode_create_tv_properties(struct drm_device *dev,
1570 unsigned int num_modes,
1571 const char * const modes[]);
1572 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
1573 extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
1574 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
1575 extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
1576 extern bool drm_property_change_valid_get(struct drm_property *property,
1577 uint64_t value, struct drm_mode_object **ref);
1578 extern void drm_property_change_valid_put(struct drm_property *property,
1579 struct drm_mode_object *ref);
1581 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
1582 struct drm_encoder *encoder);
1583 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
1585 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
1586 uint32_t id, uint32_t type);
1589 extern int drm_mode_getresources(struct drm_device *dev,
1590 void *data, struct drm_file *file_priv);
1591 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
1592 struct drm_file *file_priv);
1593 extern int drm_mode_getcrtc(struct drm_device *dev,
1594 void *data, struct drm_file *file_priv);
1595 extern int drm_mode_getconnector(struct drm_device *dev,
1596 void *data, struct drm_file *file_priv);
1597 extern int drm_mode_set_config_internal(struct drm_mode_set *set);
1598 extern int drm_mode_setcrtc(struct drm_device *dev,
1599 void *data, struct drm_file *file_priv);
1600 extern int drm_mode_getplane(struct drm_device *dev,
1601 void *data, struct drm_file *file_priv);
1602 extern int drm_mode_setplane(struct drm_device *dev,
1603 void *data, struct drm_file *file_priv);
1604 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
1605 void *data, struct drm_file *file_priv);
1606 extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
1607 void *data, struct drm_file *file_priv);
1608 extern int drm_mode_addfb(struct drm_device *dev,
1609 void *data, struct drm_file *file_priv);
1610 extern int drm_mode_addfb2(struct drm_device *dev,
1611 void *data, struct drm_file *file_priv);
1612 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
1613 extern int drm_mode_rmfb(struct drm_device *dev,
1614 void *data, struct drm_file *file_priv);
1615 extern int drm_mode_getfb(struct drm_device *dev,
1616 void *data, struct drm_file *file_priv);
1617 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1618 void *data, struct drm_file *file_priv);
1620 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1621 void *data, struct drm_file *file_priv);
1622 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1623 void *data, struct drm_file *file_priv);
1624 extern int drm_mode_createblob_ioctl(struct drm_device *dev,
1625 void *data, struct drm_file *file_priv);
1626 extern int drm_mode_destroyblob_ioctl(struct drm_device *dev,
1627 void *data, struct drm_file *file_priv);
1628 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1629 void *data, struct drm_file *file_priv);
1630 extern int drm_mode_getencoder(struct drm_device *dev,
1631 void *data, struct drm_file *file_priv);
1632 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1633 void *data, struct drm_file *file_priv);
1634 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1635 void *data, struct drm_file *file_priv);
1636 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
1637 extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
1638 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1639 extern bool drm_detect_monitor_audio(struct edid *edid);
1640 extern bool drm_rgb_quant_range_selectable(struct edid *edid);
1641 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1642 void *data, struct drm_file *file_priv);
1643 extern int drm_add_modes_noedid(struct drm_connector *connector,
1644 int hdisplay, int vdisplay);
1645 extern void drm_set_preferred_mode(struct drm_connector *connector,
1646 int hpref, int vpref);
1648 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1649 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
1650 bool *edid_corrupt);
1651 extern bool drm_edid_is_valid(struct edid *edid);
1653 extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
1655 extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
1657 extern void drm_mode_put_tile_group(struct drm_device *dev,
1658 struct drm_tile_group *tg);
1659 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1660 int hsize, int vsize, int fresh,
1663 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1664 void *data, struct drm_file *file_priv);
1665 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1666 void *data, struct drm_file *file_priv);
1667 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1668 void *data, struct drm_file *file_priv);
1669 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
1670 struct drm_file *file_priv);
1671 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
1672 struct drm_file *file_priv);
1673 extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
1674 struct drm_property *property,
1676 extern int drm_mode_atomic_ioctl(struct drm_device *dev,
1677 void *data, struct drm_file *file_priv);
1679 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1681 extern int drm_format_num_planes(uint32_t format);
1682 extern int drm_format_plane_bpp(uint32_t format, int plane);
1683 extern int drm_format_plane_cpp(uint32_t format, int plane);
1684 extern int drm_format_horz_chroma_subsampling(uint32_t format);
1685 extern int drm_format_vert_chroma_subsampling(uint32_t format);
1686 extern const char *drm_get_format_name(uint32_t format);
1687 extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
1688 unsigned int supported_rotations);
1689 extern unsigned int drm_rotation_simplify(unsigned int rotation,
1690 unsigned int supported_rotations);
1694 static inline struct drm_plane *drm_plane_find(struct drm_device *dev,
1697 struct drm_mode_object *mo;
1698 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE);
1699 return mo ? obj_to_plane(mo) : NULL;
1702 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
1705 struct drm_mode_object *mo;
1706 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC);
1707 return mo ? obj_to_crtc(mo) : NULL;
1710 static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
1713 struct drm_mode_object *mo;
1714 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
1715 return mo ? obj_to_encoder(mo) : NULL;
1718 static inline struct drm_connector *drm_connector_find(struct drm_device *dev,
1721 struct drm_mode_object *mo;
1722 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR);
1723 return mo ? obj_to_connector(mo) : NULL;
1726 static inline struct drm_property *drm_property_find(struct drm_device *dev,
1729 struct drm_mode_object *mo;
1730 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY);
1731 return mo ? obj_to_property(mo) : NULL;
1734 /* Plane list iterator for legacy (overlay only) planes. */
1735 #define drm_for_each_legacy_plane(plane, dev) \
1736 list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \
1737 if (plane->type == DRM_PLANE_TYPE_OVERLAY)
1739 #define drm_for_each_plane(plane, dev) \
1740 list_for_each_entry(plane, &(dev)->mode_config.plane_list, head)
1742 #define drm_for_each_crtc(crtc, dev) \
1743 list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
1746 assert_drm_connector_list_read_locked(struct drm_mode_config *mode_config)
1749 * The connector hotadd/remove code currently grabs both locks when
1750 * updating lists. Hence readers need only hold either of them to be
1751 * safe and the check amounts to
1753 * WARN_ON(not_holding(A) && not_holding(B)).
1755 WARN_ON(!mutex_is_locked(&mode_config->mutex) &&
1756 !drm_modeset_is_locked(&mode_config->connection_mutex));
1759 #define drm_for_each_connector(connector, dev) \
1760 for (assert_drm_connector_list_read_locked(&(dev)->mode_config), \
1761 connector = list_first_entry(&(dev)->mode_config.connector_list, \
1762 struct drm_connector, head); \
1763 &connector->head != (&(dev)->mode_config.connector_list); \
1764 connector = list_next_entry(connector, head))
1766 #define drm_for_each_encoder(encoder, dev) \
1767 list_for_each_entry(encoder, &(dev)->mode_config.encoder_list, head)
1769 #define drm_for_each_fb(fb, dev) \
1770 for (WARN_ON(!mutex_is_locked(&(dev)->mode_config.fb_lock)), \
1771 fb = list_first_entry(&(dev)->mode_config.fb_list, \
1772 struct drm_framebuffer, head); \
1773 &fb->head != (&(dev)->mode_config.fb_list); \
1774 fb = list_next_entry(fb, head))
1776 #endif /* __DRM_CRTC_H__ */