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 <uapi/drm/drm_mode.h>
35 #include <uapi/drm/drm_fourcc.h>
36 #include <drm/drm_modeset_lock.h>
40 struct drm_framebuffer;
41 struct drm_object_properties;
47 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
48 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
49 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
50 #define DRM_MODE_OBJECT_MODE 0xdededede
51 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
52 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
53 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
54 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
55 #define DRM_MODE_OBJECT_BRIDGE 0xbdbdbdbd
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 {
67 uint32_t ids[DRM_OBJECT_MAX_PROPERTY];
68 uint64_t values[DRM_OBJECT_MAX_PROPERTY];
71 static inline int64_t U642I64(uint64_t val)
73 return (int64_t)*((int64_t *)&val);
75 static inline uint64_t I642U64(int64_t val)
77 return (uint64_t)*((uint64_t *)&val);
80 /* rotation property bits */
81 #define DRM_ROTATE_0 0
82 #define DRM_ROTATE_90 1
83 #define DRM_ROTATE_180 2
84 #define DRM_ROTATE_270 3
85 #define DRM_REFLECT_X 4
86 #define DRM_REFLECT_Y 5
88 enum drm_connector_force {
89 DRM_FORCE_UNSPECIFIED,
91 DRM_FORCE_ON, /* force on analog part normally */
92 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
95 #include <drm/drm_modes.h>
97 enum drm_connector_status {
98 connector_status_connected = 1,
99 connector_status_disconnected = 2,
100 connector_status_unknown = 3,
103 enum subpixel_order {
105 SubPixelHorizontalRGB,
106 SubPixelHorizontalBGR,
112 #define DRM_COLOR_FORMAT_RGB444 (1<<0)
113 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
114 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
116 * Describes a given display (e.g. CRT or flat panel) and its limitations.
118 struct drm_display_info {
119 char name[DRM_DISPLAY_INFO_LEN];
122 unsigned int width_mm;
123 unsigned int height_mm;
125 /* Clock limits FIXME: storage format */
126 unsigned int min_vfreq, max_vfreq;
127 unsigned int min_hfreq, max_hfreq;
128 unsigned int pixel_clock;
131 enum subpixel_order subpixel_order;
134 /* Mask of supported hdmi deep color modes */
135 u8 edid_hdmi_dc_modes;
140 /* data corresponds to displayid vend/prod/serial */
141 struct drm_tile_group {
142 struct kref refcount;
143 struct drm_device *dev;
148 struct drm_framebuffer_funcs {
149 /* note: use drm_framebuffer_remove() */
150 void (*destroy)(struct drm_framebuffer *framebuffer);
151 int (*create_handle)(struct drm_framebuffer *fb,
152 struct drm_file *file_priv,
153 unsigned int *handle);
155 * Optional callback for the dirty fb ioctl.
157 * Userspace can notify the driver via this callback
158 * that a area of the framebuffer has changed and should
159 * be flushed to the display hardware.
161 * See documentation in drm_mode.h for the struct
162 * drm_mode_fb_dirty_cmd for more information as all
163 * the semantics and arguments have a one to one mapping
166 int (*dirty)(struct drm_framebuffer *framebuffer,
167 struct drm_file *file_priv, unsigned flags,
168 unsigned color, struct drm_clip_rect *clips,
172 struct drm_framebuffer {
173 struct drm_device *dev;
175 * Note that the fb is refcounted for the benefit of driver internals,
176 * for example some hw, disabling a CRTC/plane is asynchronous, and
177 * scanout does not actually complete until the next vblank. So some
178 * cleanup (like releasing the reference(s) on the backing GEM bo(s))
179 * should be deferred. In cases like this, the driver would like to
180 * hold a ref to the fb even though it has already been removed from
181 * userspace perspective.
183 struct kref refcount;
185 * Place on the dev->mode_config.fb_list, access protected by
186 * dev->mode_config.fb_lock.
188 struct list_head head;
189 struct drm_mode_object base;
190 const struct drm_framebuffer_funcs *funcs;
191 unsigned int pitches[4];
192 unsigned int offsets[4];
195 /* depth can be 15 or 16 */
199 uint32_t pixel_format; /* fourcc format */
200 struct list_head filp_head;
201 /* if you are using the helper */
202 void *helper_private;
205 struct drm_property_blob {
206 struct drm_mode_object base;
207 struct list_head head;
209 unsigned char data[];
212 struct drm_property_enum {
214 struct list_head head;
215 char name[DRM_PROP_NAME_LEN];
218 struct drm_property {
219 struct list_head head;
220 struct drm_mode_object base;
222 char name[DRM_PROP_NAME_LEN];
225 struct drm_device *dev;
227 struct list_head enum_list;
231 struct drm_connector;
233 struct drm_pending_vblank_event;
236 struct drm_atomic_state;
239 * struct drm_crtc_state - mutable CRTC state
240 * @crtc: backpointer to the CRTC
241 * @enable: whether the CRTC should be enabled, gates all other state
242 * @active: whether the CRTC is actively displaying (used for DPMS)
243 * @mode_changed: for use by helpers and drivers when computing state updates
244 * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
245 * @last_vblank_count: for helpers and drivers to capture the vblank of the
246 * update to ensure framebuffer cleanup isn't done too early
247 * @planes_changed: for use by helpers and drivers when computing state updates
248 * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
249 * @mode: current mode timings
250 * @event: optional pointer to a DRM event to signal upon completion of the
252 * @state: backpointer to global drm_atomic_state
254 * Note that the distinction between @enable and @active is rather subtile:
255 * Flipping @active while @enable is set without changing anything else may
256 * never return in a failure from the ->atomic_check callback. Userspace assumes
257 * that a DPMS On will always succeed. In other words: @enable controls resource
258 * assignment, @active controls the actual hardware state.
260 struct drm_crtc_state {
261 struct drm_crtc *crtc;
266 /* computed state bits used by helpers and drivers */
267 bool planes_changed : 1;
268 bool mode_changed : 1;
270 /* attached planes bitmask:
271 * WARNING: transitional helpers do not maintain plane_mask so
272 * drivers not converted over to atomic helpers should not rely
273 * on plane_mask being accurate!
277 /* last_vblank_count: for vblank waits before cleanup */
278 u32 last_vblank_count;
280 /* adjusted_mode: for use by helpers and drivers */
281 struct drm_display_mode adjusted_mode;
283 struct drm_display_mode mode;
285 struct drm_pending_vblank_event *event;
287 struct drm_atomic_state *state;
291 * struct drm_crtc_funcs - control CRTCs for a given device
292 * @save: save CRTC state
293 * @restore: restore CRTC state
294 * @reset: reset CRTC after state has been invalidated (e.g. resume)
295 * @cursor_set: setup the cursor
296 * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set
297 * @cursor_move: move the cursor
298 * @gamma_set: specify color ramp for CRTC
299 * @destroy: deinit and free object
300 * @set_property: called when a property is changed
301 * @set_config: apply a new CRTC configuration
302 * @page_flip: initiate a page flip
303 * @atomic_duplicate_state: duplicate the atomic state for this CRTC
304 * @atomic_destroy_state: destroy an atomic state for this CRTC
305 * @atomic_set_property: set a property on an atomic state for this CRTC
307 * The drm_crtc_funcs structure is the central CRTC management structure
308 * in the DRM. Each CRTC controls one or more connectors (note that the name
309 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
310 * connectors, not just CRTs).
312 * Each driver is responsible for filling out this structure at startup time,
313 * in addition to providing other modesetting features, like i2c and DDC
316 struct drm_crtc_funcs {
317 /* Save CRTC state */
318 void (*save)(struct drm_crtc *crtc); /* suspend? */
319 /* Restore CRTC state */
320 void (*restore)(struct drm_crtc *crtc); /* resume? */
321 /* Reset CRTC state */
322 void (*reset)(struct drm_crtc *crtc);
324 /* cursor controls */
325 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
326 uint32_t handle, uint32_t width, uint32_t height);
327 int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
328 uint32_t handle, uint32_t width, uint32_t height,
329 int32_t hot_x, int32_t hot_y);
330 int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
332 /* Set gamma on the CRTC */
333 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
334 uint32_t start, uint32_t size);
335 /* Object destroy routine */
336 void (*destroy)(struct drm_crtc *crtc);
338 int (*set_config)(struct drm_mode_set *set);
341 * Flip to the given framebuffer. This implements the page
342 * flip ioctl described in drm_mode.h, specifically, the
343 * implementation must return immediately and block all
344 * rendering to the current fb until the flip has completed.
345 * If userspace set the event flag in the ioctl, the event
346 * argument will point to an event to send back when the flip
347 * completes, otherwise it will be NULL.
349 int (*page_flip)(struct drm_crtc *crtc,
350 struct drm_framebuffer *fb,
351 struct drm_pending_vblank_event *event,
354 int (*set_property)(struct drm_crtc *crtc,
355 struct drm_property *property, uint64_t val);
357 /* atomic update handling */
358 struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc);
359 void (*atomic_destroy_state)(struct drm_crtc *crtc,
360 struct drm_crtc_state *state);
361 int (*atomic_set_property)(struct drm_crtc *crtc,
362 struct drm_crtc_state *state,
363 struct drm_property *property,
368 * struct drm_crtc - central CRTC control structure
369 * @dev: parent DRM device
370 * @port: OF node used by drm_of_find_possible_crtcs()
371 * @head: list management
372 * @mutex: per-CRTC locking
373 * @base: base KMS object for ID tracking etc.
374 * @primary: primary plane for this CRTC
375 * @cursor: cursor plane for this CRTC
376 * @cursor_x: current x position of the cursor, used for universal cursor planes
377 * @cursor_y: current y position of the cursor, used for universal cursor planes
378 * @enabled: is this CRTC enabled?
379 * @mode: current mode timings
380 * @hwmode: mode timings as programmed to hw regs
381 * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
382 * invert the width/height of the crtc. This is used if the driver
383 * is performing 90 or 270 degree rotated scanout
384 * @x: x position on screen
385 * @y: y position on screen
386 * @funcs: CRTC control functions
387 * @gamma_size: size of gamma ramp
388 * @gamma_store: gamma ramp values
389 * @framedur_ns: precise frame timing
390 * @linedur_ns: precise line timing
391 * @pixeldur_ns: precise pixel timing
392 * @helper_private: mid-layer private data
393 * @properties: property tracking for this CRTC
394 * @state: current atomic state for this CRTC
395 * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for
398 * Each CRTC may have one or more connectors associated with it. This structure
399 * allows the CRTC to be controlled.
402 struct drm_device *dev;
403 struct device_node *port;
404 struct list_head head;
409 * This provides a read lock for the overall crtc state (mode, dpms
410 * state, ...) and a write lock for everything which can be update
411 * without a full modeset (fb, cursor data, ...)
413 struct drm_modeset_lock mutex;
415 struct drm_mode_object base;
417 /* primary and cursor planes for CRTC */
418 struct drm_plane *primary;
419 struct drm_plane *cursor;
421 /* position of cursor plane on crtc */
427 /* Requested mode from modesetting. */
428 struct drm_display_mode mode;
430 /* Programmed mode in hw, after adjustments for encoders,
431 * crtc, panel scaling etc. Needed for timestamping etc.
433 struct drm_display_mode hwmode;
435 bool invert_dimensions;
438 const struct drm_crtc_funcs *funcs;
440 /* CRTC gamma size for reporting to userspace */
442 uint16_t *gamma_store;
444 /* Constants needed for precise vblank and swap timestamping. */
445 int framedur_ns, linedur_ns, pixeldur_ns;
447 /* if you are using the helper */
448 void *helper_private;
450 struct drm_object_properties properties;
452 struct drm_crtc_state *state;
455 * For legacy crtc ioctls so that atomic drivers can get at the locking
458 struct drm_modeset_acquire_ctx *acquire_ctx;
462 * struct drm_connector_state - mutable connector state
463 * @connector: backpointer to the connector
464 * @crtc: CRTC to connect connector to, NULL if disabled
465 * @best_encoder: can be used by helpers and drivers to select the encoder
466 * @state: backpointer to global drm_atomic_state
468 struct drm_connector_state {
469 struct drm_connector *connector;
471 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_connector() */
473 struct drm_encoder *best_encoder;
475 struct drm_atomic_state *state;
479 * struct drm_connector_funcs - control connectors on a given device
480 * @dpms: set power state (see drm_crtc_funcs above)
481 * @save: save connector state
482 * @restore: restore connector state
483 * @reset: reset connector after state has been invalidated (e.g. resume)
484 * @detect: is this connector active?
485 * @fill_modes: fill mode list for this connector
486 * @set_property: property for this connector may need an update
487 * @destroy: make object go away
488 * @force: notify the driver that the connector is forced on
489 * @atomic_duplicate_state: duplicate the atomic state for this connector
490 * @atomic_destroy_state: destroy an atomic state for this connector
491 * @atomic_set_property: set a property on an atomic state for this connector
493 * Each CRTC may have one or more connectors attached to it. The functions
494 * below allow the core DRM code to control connectors, enumerate available modes,
497 struct drm_connector_funcs {
498 void (*dpms)(struct drm_connector *connector, int mode);
499 void (*save)(struct drm_connector *connector);
500 void (*restore)(struct drm_connector *connector);
501 void (*reset)(struct drm_connector *connector);
503 /* Check to see if anything is attached to the connector.
504 * @force is set to false whilst polling, true when checking the
505 * connector due to user request. @force can be used by the driver
506 * to avoid expensive, destructive operations during automated
509 enum drm_connector_status (*detect)(struct drm_connector *connector,
511 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
512 int (*set_property)(struct drm_connector *connector, struct drm_property *property,
514 void (*destroy)(struct drm_connector *connector);
515 void (*force)(struct drm_connector *connector);
517 /* atomic update handling */
518 struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
519 void (*atomic_destroy_state)(struct drm_connector *connector,
520 struct drm_connector_state *state);
521 int (*atomic_set_property)(struct drm_connector *connector,
522 struct drm_connector_state *state,
523 struct drm_property *property,
528 * struct drm_encoder_funcs - encoder controls
529 * @reset: reset state (e.g. at init or resume time)
530 * @destroy: cleanup and free associated data
532 * Encoders sit between CRTCs and connectors.
534 struct drm_encoder_funcs {
535 void (*reset)(struct drm_encoder *encoder);
536 void (*destroy)(struct drm_encoder *encoder);
539 #define DRM_CONNECTOR_MAX_ENCODER 3
542 * struct drm_encoder - central DRM encoder structure
543 * @dev: parent DRM device
544 * @head: list management
545 * @base: base KMS object
546 * @name: encoder name
547 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
548 * @possible_crtcs: bitmask of potential CRTC bindings
549 * @possible_clones: bitmask of potential sibling encoders for cloning
550 * @crtc: currently bound CRTC
551 * @bridge: bridge associated to the encoder
552 * @funcs: control functions
553 * @helper_private: mid-layer private data
555 * CRTCs drive pixels to encoders, which convert them into signals
556 * appropriate for a given connector or set of connectors.
559 struct drm_device *dev;
560 struct list_head head;
562 struct drm_mode_object base;
565 uint32_t possible_crtcs;
566 uint32_t possible_clones;
568 struct drm_crtc *crtc;
569 struct drm_bridge *bridge;
570 const struct drm_encoder_funcs *funcs;
571 void *helper_private;
574 /* should we poll this connector for connects and disconnects */
575 /* hot plug detectable */
576 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
577 /* poll for connections */
578 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
579 /* can cleanly poll for disconnections without flickering the screen */
580 /* DACs should rarely do this without a lot of testing */
581 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
583 #define MAX_ELD_BYTES 128
586 * struct drm_connector - central DRM connector control structure
587 * @dev: parent DRM device
588 * @kdev: kernel device for sysfs attributes
589 * @attr: sysfs attributes
590 * @head: list management
591 * @base: base KMS object
592 * @name: connector name
593 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
594 * @connector_type_id: index into connector type enum
595 * @interlace_allowed: can this connector handle interlaced modes?
596 * @doublescan_allowed: can this connector handle doublescan?
597 * @stereo_allowed: can this connector handle stereo modes?
598 * @modes: modes available on this connector (from fill_modes() + user)
599 * @status: one of the drm_connector_status enums (connected, not, or unknown)
600 * @probed_modes: list of modes derived directly from the display
601 * @display_info: information about attached display (e.g. from EDID)
602 * @funcs: connector control functions
603 * @edid_blob_ptr: DRM property containing EDID if present
604 * @properties: property tracking for this connector
605 * @path_blob_ptr: DRM blob property data for the DP MST path property
606 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
607 * @dpms: current dpms state
608 * @helper_private: mid-layer private data
609 * @cmdline_mode: mode line parsed from the kernel cmdline for this connector
610 * @force: a %DRM_FORCE_<foo> state for forced mode sets
611 * @override_edid: has the EDID been overwritten through debugfs for testing?
612 * @encoder_ids: valid encoders for this connector
613 * @encoder: encoder driving this connector, if any
614 * @eld: EDID-like data, if present
615 * @dvi_dual: dual link DVI, if found
616 * @max_tmds_clock: max clock rate, if found
617 * @latency_present: AV delay info from ELD, if found
618 * @video_latency: video latency info from ELD, if found
619 * @audio_latency: audio latency info from ELD, if found
620 * @null_edid_counter: track sinks that give us all zeros for the EDID
621 * @bad_edid_counter: track sinks that give us an EDID with invalid checksum
622 * @debugfs_entry: debugfs directory for this connector
623 * @state: current atomic state for this connector
624 * @has_tile: is this connector connected to a tiled monitor
625 * @tile_group: tile group for the connected monitor
626 * @tile_is_single_monitor: whether the tile is one monitor housing
627 * @num_h_tile: number of horizontal tiles in the tile group
628 * @num_v_tile: number of vertical tiles in the tile group
629 * @tile_h_loc: horizontal location of this tile
630 * @tile_v_loc: vertical location of this tile
631 * @tile_h_size: horizontal size of this tile.
632 * @tile_v_size: vertical size of this tile.
634 * Each connector may be connected to one or more CRTCs, or may be clonable by
635 * another connector if they can share a CRTC. Each connector also has a specific
636 * position in the broader display (referred to as a 'screen' though it could
637 * span multiple monitors).
639 struct drm_connector {
640 struct drm_device *dev;
642 struct device_attribute *attr;
643 struct list_head head;
645 struct drm_mode_object base;
649 int connector_type_id;
650 bool interlace_allowed;
651 bool doublescan_allowed;
653 struct list_head modes; /* list of modes on this connector */
655 enum drm_connector_status status;
657 /* these are modes added by probing with DDC or the BIOS */
658 struct list_head probed_modes;
660 struct drm_display_info display_info;
661 const struct drm_connector_funcs *funcs;
663 struct drm_property_blob *edid_blob_ptr;
664 struct drm_object_properties properties;
666 struct drm_property_blob *path_blob_ptr;
668 struct drm_property_blob *tile_blob_ptr;
670 uint8_t polled; /* DRM_CONNECTOR_POLL_* */
672 /* requested DPMS state */
675 void *helper_private;
677 /* forced on connector */
678 struct drm_cmdline_mode cmdline_mode;
679 enum drm_connector_force force;
681 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
682 struct drm_encoder *encoder; /* currently active encoder */
685 uint8_t eld[MAX_ELD_BYTES];
687 int max_tmds_clock; /* in MHz */
688 bool latency_present[2];
689 int video_latency[2]; /* [0]: progressive, [1]: interlaced */
690 int audio_latency[2];
691 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
692 unsigned bad_edid_counter;
694 struct dentry *debugfs_entry;
696 struct drm_connector_state *state;
700 struct drm_tile_group *tile_group;
701 bool tile_is_single_monitor;
703 uint8_t num_h_tile, num_v_tile;
704 uint8_t tile_h_loc, tile_v_loc;
705 uint16_t tile_h_size, tile_v_size;
709 * struct drm_plane_state - mutable plane state
710 * @plane: backpointer to the plane
711 * @crtc: currently bound CRTC, NULL if disabled
712 * @fb: currently bound framebuffer
713 * @fence: optional fence to wait for before scanning out @fb
714 * @crtc_x: left position of visible portion of plane on crtc
715 * @crtc_y: upper position of visible portion of plane on crtc
716 * @crtc_w: width of visible portion of plane on crtc
717 * @crtc_h: height of visible portion of plane on crtc
718 * @src_x: left position of visible portion of plane within
720 * @src_y: upper position of visible portion of plane within
722 * @src_w: width of visible portion of plane (in 16.16)
723 * @src_h: height of visible portion of plane (in 16.16)
724 * @state: backpointer to global drm_atomic_state
726 struct drm_plane_state {
727 struct drm_plane *plane;
729 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_plane() */
730 struct drm_framebuffer *fb; /* do not write directly, use drm_atomic_set_fb_for_plane() */
733 /* Signed dest location allows it to be partially off screen */
734 int32_t crtc_x, crtc_y;
735 uint32_t crtc_w, crtc_h;
737 /* Source values are 16.16 fixed point */
738 uint32_t src_x, src_y;
739 uint32_t src_h, src_w;
741 struct drm_atomic_state *state;
746 * struct drm_plane_funcs - driver plane control functions
747 * @update_plane: update the plane configuration
748 * @disable_plane: shut down the plane
749 * @destroy: clean up plane resources
750 * @reset: reset plane after state has been invalidated (e.g. resume)
751 * @set_property: called when a property is changed
752 * @atomic_duplicate_state: duplicate the atomic state for this plane
753 * @atomic_destroy_state: destroy an atomic state for this plane
754 * @atomic_set_property: set a property on an atomic state for this plane
756 struct drm_plane_funcs {
757 int (*update_plane)(struct drm_plane *plane,
758 struct drm_crtc *crtc, struct drm_framebuffer *fb,
759 int crtc_x, int crtc_y,
760 unsigned int crtc_w, unsigned int crtc_h,
761 uint32_t src_x, uint32_t src_y,
762 uint32_t src_w, uint32_t src_h);
763 int (*disable_plane)(struct drm_plane *plane);
764 void (*destroy)(struct drm_plane *plane);
765 void (*reset)(struct drm_plane *plane);
767 int (*set_property)(struct drm_plane *plane,
768 struct drm_property *property, uint64_t val);
770 /* atomic update handling */
771 struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane);
772 void (*atomic_destroy_state)(struct drm_plane *plane,
773 struct drm_plane_state *state);
774 int (*atomic_set_property)(struct drm_plane *plane,
775 struct drm_plane_state *state,
776 struct drm_property *property,
780 enum drm_plane_type {
781 DRM_PLANE_TYPE_OVERLAY,
782 DRM_PLANE_TYPE_PRIMARY,
783 DRM_PLANE_TYPE_CURSOR,
787 * struct drm_plane - central DRM plane control structure
788 * @dev: DRM device this plane belongs to
789 * @head: for list management
790 * @base: base mode object
791 * @possible_crtcs: pipes this plane can be bound to
792 * @format_types: array of formats supported by this plane
793 * @format_count: number of formats supported
794 * @crtc: currently bound CRTC
795 * @fb: currently bound fb
796 * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by
797 * drm_mode_set_config_internal() to implement correct refcounting.
798 * @funcs: helper functions
799 * @properties: property tracking for this plane
800 * @type: type of plane (overlay, primary, cursor)
801 * @state: current atomic state for this plane
804 struct drm_device *dev;
805 struct list_head head;
807 struct drm_modeset_lock mutex;
809 struct drm_mode_object base;
811 uint32_t possible_crtcs;
812 uint32_t *format_types;
813 uint32_t format_count;
815 struct drm_crtc *crtc;
816 struct drm_framebuffer *fb;
818 struct drm_framebuffer *old_fb;
820 const struct drm_plane_funcs *funcs;
822 struct drm_object_properties properties;
824 enum drm_plane_type type;
826 void *helper_private;
828 struct drm_plane_state *state;
832 * struct drm_bridge_funcs - drm_bridge control functions
833 * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge
834 * @disable: Called right before encoder prepare, disables the bridge
835 * @post_disable: Called right after encoder prepare, for lockstepped disable
836 * @mode_set: Set this mode to the bridge
837 * @pre_enable: Called right before encoder commit, for lockstepped commit
838 * @enable: Called right after encoder commit, enables the bridge
839 * @destroy: make object go away
841 struct drm_bridge_funcs {
842 bool (*mode_fixup)(struct drm_bridge *bridge,
843 const struct drm_display_mode *mode,
844 struct drm_display_mode *adjusted_mode);
845 void (*disable)(struct drm_bridge *bridge);
846 void (*post_disable)(struct drm_bridge *bridge);
847 void (*mode_set)(struct drm_bridge *bridge,
848 struct drm_display_mode *mode,
849 struct drm_display_mode *adjusted_mode);
850 void (*pre_enable)(struct drm_bridge *bridge);
851 void (*enable)(struct drm_bridge *bridge);
852 void (*destroy)(struct drm_bridge *bridge);
856 * struct drm_bridge - central DRM bridge control structure
857 * @dev: DRM device this bridge belongs to
858 * @head: list management
859 * @base: base mode object
860 * @funcs: control functions
861 * @driver_private: pointer to the bridge driver's internal context
864 struct drm_device *dev;
865 struct list_head head;
867 struct drm_mode_object base;
869 const struct drm_bridge_funcs *funcs;
870 void *driver_private;
874 * struct struct drm_atomic_state - the global state object for atomic updates
875 * @dev: parent DRM device
876 * @flags: state flags like async update
877 * @planes: pointer to array of plane pointers
878 * @plane_states: pointer to array of plane states pointers
879 * @crtcs: pointer to array of CRTC pointers
880 * @crtc_states: pointer to array of CRTC states pointers
881 * @num_connector: size of the @connectors and @connector_states arrays
882 * @connectors: pointer to array of connector pointers
883 * @connector_states: pointer to array of connector states pointers
884 * @acquire_ctx: acquire context for this atomic modeset state update
886 struct drm_atomic_state {
887 struct drm_device *dev;
889 struct drm_plane **planes;
890 struct drm_plane_state **plane_states;
891 struct drm_crtc **crtcs;
892 struct drm_crtc_state **crtc_states;
894 struct drm_connector **connectors;
895 struct drm_connector_state **connector_states;
897 struct drm_modeset_acquire_ctx *acquire_ctx;
902 * struct drm_mode_set - new values for a CRTC config change
903 * @fb: framebuffer to use for new config
904 * @crtc: CRTC whose configuration we're about to change
905 * @mode: mode timings to use
906 * @x: position of this CRTC relative to @fb
907 * @y: position of this CRTC relative to @fb
908 * @connectors: array of connectors to drive with this CRTC if possible
909 * @num_connectors: size of @connectors array
911 * Represents a single crtc the connectors that it drives with what mode
912 * and from which framebuffer it scans out from.
914 * This is used to set modes.
916 struct drm_mode_set {
917 struct drm_framebuffer *fb;
918 struct drm_crtc *crtc;
919 struct drm_display_mode *mode;
924 struct drm_connector **connectors;
925 size_t num_connectors;
929 * struct drm_mode_config_funcs - basic driver provided mode setting functions
930 * @fb_create: create a new framebuffer object
931 * @output_poll_changed: function to handle output configuration changes
932 * @atomic_check: check whether a give atomic state update is possible
933 * @atomic_commit: commit an atomic state update previously verified with
936 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
939 struct drm_mode_config_funcs {
940 struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
941 struct drm_file *file_priv,
942 struct drm_mode_fb_cmd2 *mode_cmd);
943 void (*output_poll_changed)(struct drm_device *dev);
945 int (*atomic_check)(struct drm_device *dev,
946 struct drm_atomic_state *a);
947 int (*atomic_commit)(struct drm_device *dev,
948 struct drm_atomic_state *a,
953 * struct drm_mode_group - group of mode setting resources for potential sub-grouping
954 * @num_crtcs: CRTC count
955 * @num_encoders: encoder count
956 * @num_connectors: connector count
957 * @num_bridges: bridge count
958 * @id_list: list of KMS object IDs in this group
960 * Currently this simply tracks the global mode setting state. But in the
961 * future it could allow groups of objects to be set aside into independent
962 * control groups for use by different user level processes (e.g. two X servers
963 * running simultaneously on different heads, each with their own mode
964 * configuration and freedom of mode setting).
966 struct drm_mode_group {
968 uint32_t num_encoders;
969 uint32_t num_connectors;
970 uint32_t num_bridges;
972 /* list of object IDs for this group */
977 * struct drm_mode_config - Mode configuration control structure
978 * @mutex: mutex protecting KMS related lists and structures
979 * @connection_mutex: ww mutex protecting connector state and routing
980 * @acquire_ctx: global implicit acquire context used by atomic drivers for
982 * @idr_mutex: mutex for KMS ID allocation and management
983 * @crtc_idr: main KMS ID tracking object
984 * @fb_lock: mutex to protect fb state and lists
985 * @num_fb: number of fbs available
986 * @fb_list: list of framebuffers available
987 * @num_connector: number of connectors on this device
988 * @connector_list: list of connector objects
989 * @num_bridge: number of bridges on this device
990 * @bridge_list: list of bridge objects
991 * @num_encoder: number of encoders on this device
992 * @encoder_list: list of encoder objects
993 * @num_overlay_plane: number of overlay planes on this device
994 * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device
995 * @plane_list: list of plane objects
996 * @num_crtc: number of CRTCs on this device
997 * @crtc_list: list of CRTC objects
998 * @property_list: list of property objects
999 * @min_width: minimum pixel width on this device
1000 * @min_height: minimum pixel height on this device
1001 * @max_width: maximum pixel width on this device
1002 * @max_height: maximum pixel height on this device
1003 * @funcs: core driver provided mode setting functions
1004 * @fb_base: base address of the framebuffer
1005 * @poll_enabled: track polling support for this device
1006 * @poll_running: track polling status for this device
1007 * @output_poll_work: delayed work for polling in process context
1008 * @property_blob_list: list of all the blob property objects
1009 * @*_property: core property tracking
1010 * @preferred_depth: preferred RBG pixel depth, used by fb helpers
1011 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering
1012 * @async_page_flip: does this device support async flips on the primary plane?
1013 * @cursor_width: hint to userspace for max cursor width
1014 * @cursor_height: hint to userspace for max cursor height
1016 * Core mode resource tracking structure. All CRTC, encoders, and connectors
1017 * enumerated by the driver are added here, as are global properties. Some
1018 * global restrictions are also here, e.g. dimension restrictions.
1020 struct drm_mode_config {
1021 struct mutex mutex; /* protects configuration (mode lists etc.) */
1022 struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */
1023 struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
1024 struct mutex idr_mutex; /* for IDR management */
1025 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1026 struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1027 /* this is limited to one for now */
1029 struct mutex fb_lock; /* proctects global and per-file fb lists */
1031 struct list_head fb_list;
1034 struct list_head connector_list;
1036 struct list_head bridge_list;
1038 struct list_head encoder_list;
1041 * Track # of overlay planes separately from # of total planes. By
1042 * default we only advertise overlay planes to userspace; if userspace
1043 * sets the "universal plane" capability bit, we'll go ahead and
1044 * expose all planes.
1046 int num_overlay_plane;
1047 int num_total_plane;
1048 struct list_head plane_list;
1051 struct list_head crtc_list;
1053 struct list_head property_list;
1055 int min_width, min_height;
1056 int max_width, max_height;
1057 const struct drm_mode_config_funcs *funcs;
1058 resource_size_t fb_base;
1060 /* output poll support */
1063 struct delayed_work output_poll_work;
1065 /* pointers to standard properties */
1066 struct list_head property_blob_list;
1067 struct drm_property *edid_property;
1068 struct drm_property *dpms_property;
1069 struct drm_property *path_property;
1070 struct drm_property *tile_property;
1071 struct drm_property *plane_type_property;
1072 struct drm_property *rotation_property;
1074 /* DVI-I properties */
1075 struct drm_property *dvi_i_subconnector_property;
1076 struct drm_property *dvi_i_select_subconnector_property;
1079 struct drm_property *tv_subconnector_property;
1080 struct drm_property *tv_select_subconnector_property;
1081 struct drm_property *tv_mode_property;
1082 struct drm_property *tv_left_margin_property;
1083 struct drm_property *tv_right_margin_property;
1084 struct drm_property *tv_top_margin_property;
1085 struct drm_property *tv_bottom_margin_property;
1086 struct drm_property *tv_brightness_property;
1087 struct drm_property *tv_contrast_property;
1088 struct drm_property *tv_flicker_reduction_property;
1089 struct drm_property *tv_overscan_property;
1090 struct drm_property *tv_saturation_property;
1091 struct drm_property *tv_hue_property;
1093 /* Optional properties */
1094 struct drm_property *scaling_mode_property;
1095 struct drm_property *aspect_ratio_property;
1096 struct drm_property *dirty_info_property;
1098 /* properties for virtual machine layout */
1099 struct drm_property *suggested_x_property;
1100 struct drm_property *suggested_y_property;
1102 /* dumb ioctl parameters */
1103 uint32_t preferred_depth, prefer_shadow;
1105 /* whether async page flip is supported or not */
1106 bool async_page_flip;
1109 uint32_t cursor_width, cursor_height;
1113 * drm_for_each_plane_mask - iterate over planes specified by bitmask
1114 * @plane: the loop cursor
1115 * @dev: the DRM device
1116 * @plane_mask: bitmask of plane indices
1118 * Iterate over all planes specified by bitmask.
1120 #define drm_for_each_plane_mask(plane, dev, plane_mask) \
1121 list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \
1122 if ((plane_mask) & (1 << drm_plane_index(plane)))
1125 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
1126 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
1127 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
1128 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
1129 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
1130 #define obj_to_property(x) container_of(x, struct drm_property, base)
1131 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
1132 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
1134 struct drm_prop_enum_list {
1139 extern int drm_crtc_init_with_planes(struct drm_device *dev,
1140 struct drm_crtc *crtc,
1141 struct drm_plane *primary,
1142 struct drm_plane *cursor,
1143 const struct drm_crtc_funcs *funcs);
1144 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
1145 extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
1148 * drm_crtc_mask - find the mask of a registered CRTC
1149 * @crtc: CRTC to find mask for
1151 * Given a registered CRTC, return the mask bit of that CRTC for an
1152 * encoder's possible_crtcs field.
1154 static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
1156 return 1 << drm_crtc_index(crtc);
1159 extern void drm_connector_ida_init(void);
1160 extern void drm_connector_ida_destroy(void);
1161 extern int drm_connector_init(struct drm_device *dev,
1162 struct drm_connector *connector,
1163 const struct drm_connector_funcs *funcs,
1164 int connector_type);
1165 int drm_connector_register(struct drm_connector *connector);
1166 void drm_connector_unregister(struct drm_connector *connector);
1168 extern void drm_connector_cleanup(struct drm_connector *connector);
1169 extern unsigned int drm_connector_index(struct drm_connector *connector);
1170 /* helper to unplug all connectors from sysfs for device */
1171 extern void drm_connector_unplug_all(struct drm_device *dev);
1173 extern int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
1174 const struct drm_bridge_funcs *funcs);
1175 extern void drm_bridge_cleanup(struct drm_bridge *bridge);
1177 extern int drm_encoder_init(struct drm_device *dev,
1178 struct drm_encoder *encoder,
1179 const struct drm_encoder_funcs *funcs,
1183 * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
1184 * @encoder: encoder to test
1185 * @crtc: crtc to test
1187 * Return false if @encoder can't be driven by @crtc, true otherwise.
1189 static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
1190 struct drm_crtc *crtc)
1192 return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
1195 extern int drm_universal_plane_init(struct drm_device *dev,
1196 struct drm_plane *plane,
1197 unsigned long possible_crtcs,
1198 const struct drm_plane_funcs *funcs,
1199 const uint32_t *formats,
1200 uint32_t format_count,
1201 enum drm_plane_type type);
1202 extern int drm_plane_init(struct drm_device *dev,
1203 struct drm_plane *plane,
1204 unsigned long possible_crtcs,
1205 const struct drm_plane_funcs *funcs,
1206 const uint32_t *formats, uint32_t format_count,
1208 extern void drm_plane_cleanup(struct drm_plane *plane);
1209 extern unsigned int drm_plane_index(struct drm_plane *plane);
1210 extern void drm_plane_force_disable(struct drm_plane *plane);
1211 extern int drm_crtc_check_viewport(const struct drm_crtc *crtc,
1213 const struct drm_display_mode *mode,
1214 const struct drm_framebuffer *fb);
1216 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
1218 extern const char *drm_get_connector_status_name(enum drm_connector_status status);
1219 extern const char *drm_get_subpixel_order_name(enum subpixel_order order);
1220 extern const char *drm_get_dpms_name(int val);
1221 extern const char *drm_get_dvi_i_subconnector_name(int val);
1222 extern const char *drm_get_dvi_i_select_name(int val);
1223 extern const char *drm_get_tv_subconnector_name(int val);
1224 extern const char *drm_get_tv_select_name(int val);
1225 extern void drm_fb_release(struct drm_file *file_priv);
1226 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
1227 extern void drm_mode_group_destroy(struct drm_mode_group *group);
1228 extern void drm_reinit_primary_mode_group(struct drm_device *dev);
1229 extern bool drm_probe_ddc(struct i2c_adapter *adapter);
1230 extern struct edid *drm_get_edid(struct drm_connector *connector,
1231 struct i2c_adapter *adapter);
1232 extern struct edid *drm_edid_duplicate(const struct edid *edid);
1233 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
1234 extern void drm_mode_config_init(struct drm_device *dev);
1235 extern void drm_mode_config_reset(struct drm_device *dev);
1236 extern void drm_mode_config_cleanup(struct drm_device *dev);
1238 extern int drm_mode_connector_set_path_property(struct drm_connector *connector,
1240 int drm_mode_connector_set_tile_property(struct drm_connector *connector);
1241 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
1242 const struct edid *edid);
1244 static inline bool drm_property_type_is(struct drm_property *property,
1247 /* instanceof for props.. handles extended type vs original types: */
1248 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1249 return (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) == type;
1250 return property->flags & type;
1253 static inline bool drm_property_type_valid(struct drm_property *property)
1255 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1256 return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1257 return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1260 extern int drm_object_property_set_value(struct drm_mode_object *obj,
1261 struct drm_property *property,
1263 extern int drm_object_property_get_value(struct drm_mode_object *obj,
1264 struct drm_property *property,
1266 extern int drm_framebuffer_init(struct drm_device *dev,
1267 struct drm_framebuffer *fb,
1268 const struct drm_framebuffer_funcs *funcs);
1269 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
1271 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb);
1272 extern void drm_framebuffer_reference(struct drm_framebuffer *fb);
1273 extern void drm_framebuffer_remove(struct drm_framebuffer *fb);
1274 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
1275 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb);
1277 extern void drm_object_attach_property(struct drm_mode_object *obj,
1278 struct drm_property *property,
1280 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1281 const char *name, int num_values);
1282 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
1284 const struct drm_prop_enum_list *props,
1286 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
1287 int flags, const char *name,
1288 const struct drm_prop_enum_list *props,
1290 uint64_t supported_bits);
1291 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
1293 uint64_t min, uint64_t max);
1294 struct drm_property *drm_property_create_signed_range(struct drm_device *dev,
1295 int flags, const char *name,
1296 int64_t min, int64_t max);
1297 struct drm_property *drm_property_create_object(struct drm_device *dev,
1298 int flags, const char *name, uint32_t type);
1299 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
1300 extern int drm_property_add_enum(struct drm_property *property, int index,
1301 uint64_t value, const char *name);
1302 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
1303 extern int drm_mode_create_tv_properties(struct drm_device *dev,
1304 unsigned int num_modes,
1306 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
1307 extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
1308 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
1309 extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
1311 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
1312 struct drm_encoder *encoder);
1313 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
1315 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
1316 uint32_t id, uint32_t type);
1319 extern int drm_mode_getresources(struct drm_device *dev,
1320 void *data, struct drm_file *file_priv);
1321 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 extern int drm_mode_getcrtc(struct drm_device *dev,
1324 void *data, struct drm_file *file_priv);
1325 extern int drm_mode_getconnector(struct drm_device *dev,
1326 void *data, struct drm_file *file_priv);
1327 extern int drm_mode_set_config_internal(struct drm_mode_set *set);
1328 extern int drm_mode_setcrtc(struct drm_device *dev,
1329 void *data, struct drm_file *file_priv);
1330 extern int drm_mode_getplane(struct drm_device *dev,
1331 void *data, struct drm_file *file_priv);
1332 extern int drm_mode_setplane(struct drm_device *dev,
1333 void *data, struct drm_file *file_priv);
1334 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
1335 void *data, struct drm_file *file_priv);
1336 extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
1337 void *data, struct drm_file *file_priv);
1338 extern int drm_mode_addfb(struct drm_device *dev,
1339 void *data, struct drm_file *file_priv);
1340 extern int drm_mode_addfb2(struct drm_device *dev,
1341 void *data, struct drm_file *file_priv);
1342 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
1343 extern int drm_mode_rmfb(struct drm_device *dev,
1344 void *data, struct drm_file *file_priv);
1345 extern int drm_mode_getfb(struct drm_device *dev,
1346 void *data, struct drm_file *file_priv);
1347 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1348 void *data, struct drm_file *file_priv);
1350 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1351 void *data, struct drm_file *file_priv);
1352 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1353 void *data, struct drm_file *file_priv);
1354 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1355 void *data, struct drm_file *file_priv);
1356 extern int drm_mode_getencoder(struct drm_device *dev,
1357 void *data, struct drm_file *file_priv);
1358 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1359 void *data, struct drm_file *file_priv);
1360 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1361 void *data, struct drm_file *file_priv);
1362 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
1363 extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
1364 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1365 extern bool drm_detect_monitor_audio(struct edid *edid);
1366 extern bool drm_rgb_quant_range_selectable(struct edid *edid);
1367 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1368 void *data, struct drm_file *file_priv);
1369 extern int drm_add_modes_noedid(struct drm_connector *connector,
1370 int hdisplay, int vdisplay);
1371 extern void drm_set_preferred_mode(struct drm_connector *connector,
1372 int hpref, int vpref);
1374 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1375 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
1376 extern bool drm_edid_is_valid(struct edid *edid);
1378 extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
1380 extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
1382 extern void drm_mode_put_tile_group(struct drm_device *dev,
1383 struct drm_tile_group *tg);
1384 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1385 int hsize, int vsize, int fresh,
1388 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1389 void *data, struct drm_file *file_priv);
1390 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1391 void *data, struct drm_file *file_priv);
1392 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1393 void *data, struct drm_file *file_priv);
1394 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
1395 struct drm_file *file_priv);
1396 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
1397 struct drm_file *file_priv);
1398 extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
1399 struct drm_property *property,
1402 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1404 extern int drm_format_num_planes(uint32_t format);
1405 extern int drm_format_plane_cpp(uint32_t format, int plane);
1406 extern int drm_format_horz_chroma_subsampling(uint32_t format);
1407 extern int drm_format_vert_chroma_subsampling(uint32_t format);
1408 extern const char *drm_get_format_name(uint32_t format);
1409 extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
1410 unsigned int supported_rotations);
1411 extern unsigned int drm_rotation_simplify(unsigned int rotation,
1412 unsigned int supported_rotations);
1416 static inline struct drm_plane *drm_plane_find(struct drm_device *dev,
1419 struct drm_mode_object *mo;
1420 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE);
1421 return mo ? obj_to_plane(mo) : NULL;
1424 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
1427 struct drm_mode_object *mo;
1428 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC);
1429 return mo ? obj_to_crtc(mo) : NULL;
1432 static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
1435 struct drm_mode_object *mo;
1436 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
1437 return mo ? obj_to_encoder(mo) : NULL;
1440 static inline struct drm_connector *drm_connector_find(struct drm_device *dev,
1443 struct drm_mode_object *mo;
1444 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR);
1445 return mo ? obj_to_connector(mo) : NULL;
1448 static inline struct drm_property *drm_property_find(struct drm_device *dev,
1451 struct drm_mode_object *mo;
1452 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY);
1453 return mo ? obj_to_property(mo) : NULL;
1456 static inline struct drm_property_blob *
1457 drm_property_blob_find(struct drm_device *dev, uint32_t id)
1459 struct drm_mode_object *mo;
1460 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_BLOB);
1461 return mo ? obj_to_blob(mo) : NULL;
1464 /* Plane list iterator for legacy (overlay only) planes. */
1465 #define drm_for_each_legacy_plane(plane, planelist) \
1466 list_for_each_entry(plane, planelist, head) \
1467 if (plane->type == DRM_PLANE_TYPE_OVERLAY)
1469 #endif /* __DRM_CRTC_H__ */