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 * @enable: whether the CRTC should be enabled, gates all other state
241 * @active: whether the CRTC is actively displaying (used for DPMS)
242 * @mode_changed: for use by helpers and drivers when computing state updates
243 * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
244 * @last_vblank_count: for helpers and drivers to capture the vblank of the
245 * update to ensure framebuffer cleanup isn't done too early
246 * @planes_changed: for use by helpers and drivers when computing state updates
247 * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
248 * @mode: current mode timings
249 * @event: optional pointer to a DRM event to signal upon completion of the
251 * @state: backpointer to global drm_atomic_state
253 * Note that the distinction between @enable and @active is rather subtile:
254 * Flipping @active while @enable is set without changing anything else may
255 * never return in a failure from the ->atomic_check callback. Userspace assumes
256 * that a DPMS On will always succeed. In other words: @enable controls resource
257 * assignment, @active controls the actual hardware state.
259 struct drm_crtc_state {
263 /* computed state bits used by helpers and drivers */
264 bool planes_changed : 1;
265 bool mode_changed : 1;
267 /* attached planes bitmask:
268 * WARNING: transitional helpers do not maintain plane_mask so
269 * drivers not converted over to atomic helpers should not rely
270 * on plane_mask being accurate!
274 /* last_vblank_count: for vblank waits before cleanup */
275 u32 last_vblank_count;
277 /* adjusted_mode: for use by helpers and drivers */
278 struct drm_display_mode adjusted_mode;
280 struct drm_display_mode mode;
282 struct drm_pending_vblank_event *event;
284 struct drm_atomic_state *state;
288 * struct drm_crtc_funcs - control CRTCs for a given device
289 * @save: save CRTC state
290 * @restore: restore CRTC state
291 * @reset: reset CRTC after state has been invalidated (e.g. resume)
292 * @cursor_set: setup the cursor
293 * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set
294 * @cursor_move: move the cursor
295 * @gamma_set: specify color ramp for CRTC
296 * @destroy: deinit and free object
297 * @set_property: called when a property is changed
298 * @set_config: apply a new CRTC configuration
299 * @page_flip: initiate a page flip
300 * @atomic_duplicate_state: duplicate the atomic state for this CRTC
301 * @atomic_destroy_state: destroy an atomic state for this CRTC
302 * @atomic_set_property: set a property on an atomic state for this CRTC
304 * The drm_crtc_funcs structure is the central CRTC management structure
305 * in the DRM. Each CRTC controls one or more connectors (note that the name
306 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
307 * connectors, not just CRTs).
309 * Each driver is responsible for filling out this structure at startup time,
310 * in addition to providing other modesetting features, like i2c and DDC
313 struct drm_crtc_funcs {
314 /* Save CRTC state */
315 void (*save)(struct drm_crtc *crtc); /* suspend? */
316 /* Restore CRTC state */
317 void (*restore)(struct drm_crtc *crtc); /* resume? */
318 /* Reset CRTC state */
319 void (*reset)(struct drm_crtc *crtc);
321 /* cursor controls */
322 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
323 uint32_t handle, uint32_t width, uint32_t height);
324 int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
325 uint32_t handle, uint32_t width, uint32_t height,
326 int32_t hot_x, int32_t hot_y);
327 int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
329 /* Set gamma on the CRTC */
330 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
331 uint32_t start, uint32_t size);
332 /* Object destroy routine */
333 void (*destroy)(struct drm_crtc *crtc);
335 int (*set_config)(struct drm_mode_set *set);
338 * Flip to the given framebuffer. This implements the page
339 * flip ioctl described in drm_mode.h, specifically, the
340 * implementation must return immediately and block all
341 * rendering to the current fb until the flip has completed.
342 * If userspace set the event flag in the ioctl, the event
343 * argument will point to an event to send back when the flip
344 * completes, otherwise it will be NULL.
346 int (*page_flip)(struct drm_crtc *crtc,
347 struct drm_framebuffer *fb,
348 struct drm_pending_vblank_event *event,
351 int (*set_property)(struct drm_crtc *crtc,
352 struct drm_property *property, uint64_t val);
354 /* atomic update handling */
355 struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc);
356 void (*atomic_destroy_state)(struct drm_crtc *crtc,
357 struct drm_crtc_state *state);
358 int (*atomic_set_property)(struct drm_crtc *crtc,
359 struct drm_crtc_state *state,
360 struct drm_property *property,
365 * struct drm_crtc - central CRTC control structure
366 * @dev: parent DRM device
367 * @port: OF node used by drm_of_find_possible_crtcs()
368 * @head: list management
369 * @mutex: per-CRTC locking
370 * @base: base KMS object for ID tracking etc.
371 * @primary: primary plane for this CRTC
372 * @cursor: cursor plane for this CRTC
373 * @cursor_x: current x position of the cursor, used for universal cursor planes
374 * @cursor_y: current y position of the cursor, used for universal cursor planes
375 * @enabled: is this CRTC enabled?
376 * @mode: current mode timings
377 * @hwmode: mode timings as programmed to hw regs
378 * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
379 * invert the width/height of the crtc. This is used if the driver
380 * is performing 90 or 270 degree rotated scanout
381 * @x: x position on screen
382 * @y: y position on screen
383 * @funcs: CRTC control functions
384 * @gamma_size: size of gamma ramp
385 * @gamma_store: gamma ramp values
386 * @framedur_ns: precise frame timing
387 * @linedur_ns: precise line timing
388 * @pixeldur_ns: precise pixel timing
389 * @helper_private: mid-layer private data
390 * @properties: property tracking for this CRTC
391 * @state: current atomic state for this CRTC
392 * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for
395 * Each CRTC may have one or more connectors associated with it. This structure
396 * allows the CRTC to be controlled.
399 struct drm_device *dev;
400 struct device_node *port;
401 struct list_head head;
406 * This provides a read lock for the overall crtc state (mode, dpms
407 * state, ...) and a write lock for everything which can be update
408 * without a full modeset (fb, cursor data, ...)
410 struct drm_modeset_lock mutex;
412 struct drm_mode_object base;
414 /* primary and cursor planes for CRTC */
415 struct drm_plane *primary;
416 struct drm_plane *cursor;
418 /* position of cursor plane on crtc */
424 /* Requested mode from modesetting. */
425 struct drm_display_mode mode;
427 /* Programmed mode in hw, after adjustments for encoders,
428 * crtc, panel scaling etc. Needed for timestamping etc.
430 struct drm_display_mode hwmode;
432 bool invert_dimensions;
435 const struct drm_crtc_funcs *funcs;
437 /* CRTC gamma size for reporting to userspace */
439 uint16_t *gamma_store;
441 /* Constants needed for precise vblank and swap timestamping. */
442 int framedur_ns, linedur_ns, pixeldur_ns;
444 /* if you are using the helper */
445 void *helper_private;
447 struct drm_object_properties properties;
449 struct drm_crtc_state *state;
452 * For legacy crtc ioctls so that atomic drivers can get at the locking
455 struct drm_modeset_acquire_ctx *acquire_ctx;
459 * struct drm_connector_state - mutable connector state
460 * @crtc: CRTC to connect connector to, NULL if disabled
461 * @best_encoder: can be used by helpers and drivers to select the encoder
462 * @state: backpointer to global drm_atomic_state
464 struct drm_connector_state {
465 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_connector() */
467 struct drm_encoder *best_encoder;
469 struct drm_atomic_state *state;
473 * struct drm_connector_funcs - control connectors on a given device
474 * @dpms: set power state (see drm_crtc_funcs above)
475 * @save: save connector state
476 * @restore: restore connector state
477 * @reset: reset connector after state has been invalidated (e.g. resume)
478 * @detect: is this connector active?
479 * @fill_modes: fill mode list for this connector
480 * @set_property: property for this connector may need an update
481 * @destroy: make object go away
482 * @force: notify the driver that the connector is forced on
483 * @atomic_duplicate_state: duplicate the atomic state for this connector
484 * @atomic_destroy_state: destroy an atomic state for this connector
485 * @atomic_set_property: set a property on an atomic state for this connector
487 * Each CRTC may have one or more connectors attached to it. The functions
488 * below allow the core DRM code to control connectors, enumerate available modes,
491 struct drm_connector_funcs {
492 void (*dpms)(struct drm_connector *connector, int mode);
493 void (*save)(struct drm_connector *connector);
494 void (*restore)(struct drm_connector *connector);
495 void (*reset)(struct drm_connector *connector);
497 /* Check to see if anything is attached to the connector.
498 * @force is set to false whilst polling, true when checking the
499 * connector due to user request. @force can be used by the driver
500 * to avoid expensive, destructive operations during automated
503 enum drm_connector_status (*detect)(struct drm_connector *connector,
505 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
506 int (*set_property)(struct drm_connector *connector, struct drm_property *property,
508 void (*destroy)(struct drm_connector *connector);
509 void (*force)(struct drm_connector *connector);
511 /* atomic update handling */
512 struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
513 void (*atomic_destroy_state)(struct drm_connector *connector,
514 struct drm_connector_state *state);
515 int (*atomic_set_property)(struct drm_connector *connector,
516 struct drm_connector_state *state,
517 struct drm_property *property,
522 * struct drm_encoder_funcs - encoder controls
523 * @reset: reset state (e.g. at init or resume time)
524 * @destroy: cleanup and free associated data
526 * Encoders sit between CRTCs and connectors.
528 struct drm_encoder_funcs {
529 void (*reset)(struct drm_encoder *encoder);
530 void (*destroy)(struct drm_encoder *encoder);
533 #define DRM_CONNECTOR_MAX_ENCODER 3
536 * struct drm_encoder - central DRM encoder structure
537 * @dev: parent DRM device
538 * @head: list management
539 * @base: base KMS object
540 * @name: encoder name
541 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
542 * @possible_crtcs: bitmask of potential CRTC bindings
543 * @possible_clones: bitmask of potential sibling encoders for cloning
544 * @crtc: currently bound CRTC
545 * @bridge: bridge associated to the encoder
546 * @funcs: control functions
547 * @helper_private: mid-layer private data
549 * CRTCs drive pixels to encoders, which convert them into signals
550 * appropriate for a given connector or set of connectors.
553 struct drm_device *dev;
554 struct list_head head;
556 struct drm_mode_object base;
559 uint32_t possible_crtcs;
560 uint32_t possible_clones;
562 struct drm_crtc *crtc;
563 struct drm_bridge *bridge;
564 const struct drm_encoder_funcs *funcs;
565 void *helper_private;
568 /* should we poll this connector for connects and disconnects */
569 /* hot plug detectable */
570 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
571 /* poll for connections */
572 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
573 /* can cleanly poll for disconnections without flickering the screen */
574 /* DACs should rarely do this without a lot of testing */
575 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
577 #define MAX_ELD_BYTES 128
580 * struct drm_connector - central DRM connector control structure
581 * @dev: parent DRM device
582 * @kdev: kernel device for sysfs attributes
583 * @attr: sysfs attributes
584 * @head: list management
585 * @base: base KMS object
586 * @name: connector name
587 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
588 * @connector_type_id: index into connector type enum
589 * @interlace_allowed: can this connector handle interlaced modes?
590 * @doublescan_allowed: can this connector handle doublescan?
591 * @stereo_allowed: can this connector handle stereo modes?
592 * @modes: modes available on this connector (from fill_modes() + user)
593 * @status: one of the drm_connector_status enums (connected, not, or unknown)
594 * @probed_modes: list of modes derived directly from the display
595 * @display_info: information about attached display (e.g. from EDID)
596 * @funcs: connector control functions
597 * @edid_blob_ptr: DRM property containing EDID if present
598 * @properties: property tracking for this connector
599 * @path_blob_ptr: DRM blob property data for the DP MST path property
600 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
601 * @dpms: current dpms state
602 * @helper_private: mid-layer private data
603 * @cmdline_mode: mode line parsed from the kernel cmdline for this connector
604 * @force: a %DRM_FORCE_<foo> state for forced mode sets
605 * @override_edid: has the EDID been overwritten through debugfs for testing?
606 * @encoder_ids: valid encoders for this connector
607 * @encoder: encoder driving this connector, if any
608 * @eld: EDID-like data, if present
609 * @dvi_dual: dual link DVI, if found
610 * @max_tmds_clock: max clock rate, if found
611 * @latency_present: AV delay info from ELD, if found
612 * @video_latency: video latency info from ELD, if found
613 * @audio_latency: audio latency info from ELD, if found
614 * @null_edid_counter: track sinks that give us all zeros for the EDID
615 * @bad_edid_counter: track sinks that give us an EDID with invalid checksum
616 * @debugfs_entry: debugfs directory for this connector
617 * @state: current atomic state for this connector
618 * @has_tile: is this connector connected to a tiled monitor
619 * @tile_group: tile group for the connected monitor
620 * @tile_is_single_monitor: whether the tile is one monitor housing
621 * @num_h_tile: number of horizontal tiles in the tile group
622 * @num_v_tile: number of vertical tiles in the tile group
623 * @tile_h_loc: horizontal location of this tile
624 * @tile_v_loc: vertical location of this tile
625 * @tile_h_size: horizontal size of this tile.
626 * @tile_v_size: vertical size of this tile.
628 * Each connector may be connected to one or more CRTCs, or may be clonable by
629 * another connector if they can share a CRTC. Each connector also has a specific
630 * position in the broader display (referred to as a 'screen' though it could
631 * span multiple monitors).
633 struct drm_connector {
634 struct drm_device *dev;
636 struct device_attribute *attr;
637 struct list_head head;
639 struct drm_mode_object base;
643 int connector_type_id;
644 bool interlace_allowed;
645 bool doublescan_allowed;
647 struct list_head modes; /* list of modes on this connector */
649 enum drm_connector_status status;
651 /* these are modes added by probing with DDC or the BIOS */
652 struct list_head probed_modes;
654 struct drm_display_info display_info;
655 const struct drm_connector_funcs *funcs;
657 struct drm_property_blob *edid_blob_ptr;
658 struct drm_object_properties properties;
660 struct drm_property_blob *path_blob_ptr;
662 struct drm_property_blob *tile_blob_ptr;
664 uint8_t polled; /* DRM_CONNECTOR_POLL_* */
666 /* requested DPMS state */
669 void *helper_private;
671 /* forced on connector */
672 struct drm_cmdline_mode cmdline_mode;
673 enum drm_connector_force force;
675 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
676 struct drm_encoder *encoder; /* currently active encoder */
679 uint8_t eld[MAX_ELD_BYTES];
681 int max_tmds_clock; /* in MHz */
682 bool latency_present[2];
683 int video_latency[2]; /* [0]: progressive, [1]: interlaced */
684 int audio_latency[2];
685 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
686 unsigned bad_edid_counter;
688 struct dentry *debugfs_entry;
690 struct drm_connector_state *state;
694 struct drm_tile_group *tile_group;
695 bool tile_is_single_monitor;
697 uint8_t num_h_tile, num_v_tile;
698 uint8_t tile_h_loc, tile_v_loc;
699 uint16_t tile_h_size, tile_v_size;
703 * struct drm_plane_state - mutable plane state
704 * @crtc: currently bound CRTC, NULL if disabled
705 * @fb: currently bound framebuffer
706 * @fence: optional fence to wait for before scanning out @fb
707 * @crtc_x: left position of visible portion of plane on crtc
708 * @crtc_y: upper position of visible portion of plane on crtc
709 * @crtc_w: width of visible portion of plane on crtc
710 * @crtc_h: height of visible portion of plane on crtc
711 * @src_x: left position of visible portion of plane within
713 * @src_y: upper position of visible portion of plane within
715 * @src_w: width of visible portion of plane (in 16.16)
716 * @src_h: height of visible portion of plane (in 16.16)
717 * @state: backpointer to global drm_atomic_state
719 struct drm_plane_state {
720 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_plane() */
721 struct drm_framebuffer *fb; /* do not write directly, use drm_atomic_set_fb_for_plane() */
724 /* Signed dest location allows it to be partially off screen */
725 int32_t crtc_x, crtc_y;
726 uint32_t crtc_w, crtc_h;
728 /* Source values are 16.16 fixed point */
729 uint32_t src_x, src_y;
730 uint32_t src_h, src_w;
732 struct drm_atomic_state *state;
737 * struct drm_plane_funcs - driver plane control functions
738 * @update_plane: update the plane configuration
739 * @disable_plane: shut down the plane
740 * @destroy: clean up plane resources
741 * @reset: reset plane after state has been invalidated (e.g. resume)
742 * @set_property: called when a property is changed
743 * @atomic_duplicate_state: duplicate the atomic state for this plane
744 * @atomic_destroy_state: destroy an atomic state for this plane
745 * @atomic_set_property: set a property on an atomic state for this plane
747 struct drm_plane_funcs {
748 int (*update_plane)(struct drm_plane *plane,
749 struct drm_crtc *crtc, struct drm_framebuffer *fb,
750 int crtc_x, int crtc_y,
751 unsigned int crtc_w, unsigned int crtc_h,
752 uint32_t src_x, uint32_t src_y,
753 uint32_t src_w, uint32_t src_h);
754 int (*disable_plane)(struct drm_plane *plane);
755 void (*destroy)(struct drm_plane *plane);
756 void (*reset)(struct drm_plane *plane);
758 int (*set_property)(struct drm_plane *plane,
759 struct drm_property *property, uint64_t val);
761 /* atomic update handling */
762 struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane);
763 void (*atomic_destroy_state)(struct drm_plane *plane,
764 struct drm_plane_state *state);
765 int (*atomic_set_property)(struct drm_plane *plane,
766 struct drm_plane_state *state,
767 struct drm_property *property,
771 enum drm_plane_type {
772 DRM_PLANE_TYPE_OVERLAY,
773 DRM_PLANE_TYPE_PRIMARY,
774 DRM_PLANE_TYPE_CURSOR,
778 * struct drm_plane - central DRM plane control structure
779 * @dev: DRM device this plane belongs to
780 * @head: for list management
781 * @base: base mode object
782 * @possible_crtcs: pipes this plane can be bound to
783 * @format_types: array of formats supported by this plane
784 * @format_count: number of formats supported
785 * @crtc: currently bound CRTC
786 * @fb: currently bound fb
787 * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by
788 * drm_mode_set_config_internal() to implement correct refcounting.
789 * @funcs: helper functions
790 * @properties: property tracking for this plane
791 * @type: type of plane (overlay, primary, cursor)
792 * @state: current atomic state for this plane
795 struct drm_device *dev;
796 struct list_head head;
798 struct drm_modeset_lock mutex;
800 struct drm_mode_object base;
802 uint32_t possible_crtcs;
803 uint32_t *format_types;
804 uint32_t format_count;
806 struct drm_crtc *crtc;
807 struct drm_framebuffer *fb;
809 struct drm_framebuffer *old_fb;
811 const struct drm_plane_funcs *funcs;
813 struct drm_object_properties properties;
815 enum drm_plane_type type;
817 void *helper_private;
819 struct drm_plane_state *state;
823 * struct drm_bridge_funcs - drm_bridge control functions
824 * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge
825 * @disable: Called right before encoder prepare, disables the bridge
826 * @post_disable: Called right after encoder prepare, for lockstepped disable
827 * @mode_set: Set this mode to the bridge
828 * @pre_enable: Called right before encoder commit, for lockstepped commit
829 * @enable: Called right after encoder commit, enables the bridge
830 * @destroy: make object go away
832 struct drm_bridge_funcs {
833 bool (*mode_fixup)(struct drm_bridge *bridge,
834 const struct drm_display_mode *mode,
835 struct drm_display_mode *adjusted_mode);
836 void (*disable)(struct drm_bridge *bridge);
837 void (*post_disable)(struct drm_bridge *bridge);
838 void (*mode_set)(struct drm_bridge *bridge,
839 struct drm_display_mode *mode,
840 struct drm_display_mode *adjusted_mode);
841 void (*pre_enable)(struct drm_bridge *bridge);
842 void (*enable)(struct drm_bridge *bridge);
843 void (*destroy)(struct drm_bridge *bridge);
847 * struct drm_bridge - central DRM bridge control structure
848 * @dev: DRM device this bridge belongs to
849 * @head: list management
850 * @base: base mode object
851 * @funcs: control functions
852 * @driver_private: pointer to the bridge driver's internal context
855 struct drm_device *dev;
856 struct list_head head;
858 struct drm_mode_object base;
860 const struct drm_bridge_funcs *funcs;
861 void *driver_private;
865 * struct struct drm_atomic_state - the global state object for atomic updates
866 * @dev: parent DRM device
867 * @flags: state flags like async update
868 * @planes: pointer to array of plane pointers
869 * @plane_states: pointer to array of plane states pointers
870 * @crtcs: pointer to array of CRTC pointers
871 * @crtc_states: pointer to array of CRTC states pointers
872 * @num_connector: size of the @connectors and @connector_states arrays
873 * @connectors: pointer to array of connector pointers
874 * @connector_states: pointer to array of connector states pointers
875 * @acquire_ctx: acquire context for this atomic modeset state update
877 struct drm_atomic_state {
878 struct drm_device *dev;
880 struct drm_plane **planes;
881 struct drm_plane_state **plane_states;
882 struct drm_crtc **crtcs;
883 struct drm_crtc_state **crtc_states;
885 struct drm_connector **connectors;
886 struct drm_connector_state **connector_states;
888 struct drm_modeset_acquire_ctx *acquire_ctx;
893 * struct drm_mode_set - new values for a CRTC config change
894 * @fb: framebuffer to use for new config
895 * @crtc: CRTC whose configuration we're about to change
896 * @mode: mode timings to use
897 * @x: position of this CRTC relative to @fb
898 * @y: position of this CRTC relative to @fb
899 * @connectors: array of connectors to drive with this CRTC if possible
900 * @num_connectors: size of @connectors array
902 * Represents a single crtc the connectors that it drives with what mode
903 * and from which framebuffer it scans out from.
905 * This is used to set modes.
907 struct drm_mode_set {
908 struct drm_framebuffer *fb;
909 struct drm_crtc *crtc;
910 struct drm_display_mode *mode;
915 struct drm_connector **connectors;
916 size_t num_connectors;
920 * struct drm_mode_config_funcs - basic driver provided mode setting functions
921 * @fb_create: create a new framebuffer object
922 * @output_poll_changed: function to handle output configuration changes
923 * @atomic_check: check whether a give atomic state update is possible
924 * @atomic_commit: commit an atomic state update previously verified with
927 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
930 struct drm_mode_config_funcs {
931 struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
932 struct drm_file *file_priv,
933 struct drm_mode_fb_cmd2 *mode_cmd);
934 void (*output_poll_changed)(struct drm_device *dev);
936 int (*atomic_check)(struct drm_device *dev,
937 struct drm_atomic_state *a);
938 int (*atomic_commit)(struct drm_device *dev,
939 struct drm_atomic_state *a,
944 * struct drm_mode_group - group of mode setting resources for potential sub-grouping
945 * @num_crtcs: CRTC count
946 * @num_encoders: encoder count
947 * @num_connectors: connector count
948 * @num_bridges: bridge count
949 * @id_list: list of KMS object IDs in this group
951 * Currently this simply tracks the global mode setting state. But in the
952 * future it could allow groups of objects to be set aside into independent
953 * control groups for use by different user level processes (e.g. two X servers
954 * running simultaneously on different heads, each with their own mode
955 * configuration and freedom of mode setting).
957 struct drm_mode_group {
959 uint32_t num_encoders;
960 uint32_t num_connectors;
961 uint32_t num_bridges;
963 /* list of object IDs for this group */
968 * struct drm_mode_config - Mode configuration control structure
969 * @mutex: mutex protecting KMS related lists and structures
970 * @connection_mutex: ww mutex protecting connector state and routing
971 * @acquire_ctx: global implicit acquire context used by atomic drivers for
973 * @idr_mutex: mutex for KMS ID allocation and management
974 * @crtc_idr: main KMS ID tracking object
975 * @fb_lock: mutex to protect fb state and lists
976 * @num_fb: number of fbs available
977 * @fb_list: list of framebuffers available
978 * @num_connector: number of connectors on this device
979 * @connector_list: list of connector objects
980 * @num_bridge: number of bridges on this device
981 * @bridge_list: list of bridge objects
982 * @num_encoder: number of encoders on this device
983 * @encoder_list: list of encoder objects
984 * @num_overlay_plane: number of overlay planes on this device
985 * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device
986 * @plane_list: list of plane objects
987 * @num_crtc: number of CRTCs on this device
988 * @crtc_list: list of CRTC objects
989 * @property_list: list of property objects
990 * @min_width: minimum pixel width on this device
991 * @min_height: minimum pixel height on this device
992 * @max_width: maximum pixel width on this device
993 * @max_height: maximum pixel height on this device
994 * @funcs: core driver provided mode setting functions
995 * @fb_base: base address of the framebuffer
996 * @poll_enabled: track polling support for this device
997 * @poll_running: track polling status for this device
998 * @output_poll_work: delayed work for polling in process context
999 * @property_blob_list: list of all the blob property objects
1000 * @*_property: core property tracking
1001 * @preferred_depth: preferred RBG pixel depth, used by fb helpers
1002 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering
1003 * @async_page_flip: does this device support async flips on the primary plane?
1004 * @cursor_width: hint to userspace for max cursor width
1005 * @cursor_height: hint to userspace for max cursor height
1007 * Core mode resource tracking structure. All CRTC, encoders, and connectors
1008 * enumerated by the driver are added here, as are global properties. Some
1009 * global restrictions are also here, e.g. dimension restrictions.
1011 struct drm_mode_config {
1012 struct mutex mutex; /* protects configuration (mode lists etc.) */
1013 struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */
1014 struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
1015 struct mutex idr_mutex; /* for IDR management */
1016 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1017 struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1018 /* this is limited to one for now */
1020 struct mutex fb_lock; /* proctects global and per-file fb lists */
1022 struct list_head fb_list;
1025 struct list_head connector_list;
1027 struct list_head bridge_list;
1029 struct list_head encoder_list;
1032 * Track # of overlay planes separately from # of total planes. By
1033 * default we only advertise overlay planes to userspace; if userspace
1034 * sets the "universal plane" capability bit, we'll go ahead and
1035 * expose all planes.
1037 int num_overlay_plane;
1038 int num_total_plane;
1039 struct list_head plane_list;
1042 struct list_head crtc_list;
1044 struct list_head property_list;
1046 int min_width, min_height;
1047 int max_width, max_height;
1048 const struct drm_mode_config_funcs *funcs;
1049 resource_size_t fb_base;
1051 /* output poll support */
1054 struct delayed_work output_poll_work;
1056 /* pointers to standard properties */
1057 struct list_head property_blob_list;
1058 struct drm_property *edid_property;
1059 struct drm_property *dpms_property;
1060 struct drm_property *path_property;
1061 struct drm_property *tile_property;
1062 struct drm_property *plane_type_property;
1063 struct drm_property *rotation_property;
1065 /* DVI-I properties */
1066 struct drm_property *dvi_i_subconnector_property;
1067 struct drm_property *dvi_i_select_subconnector_property;
1070 struct drm_property *tv_subconnector_property;
1071 struct drm_property *tv_select_subconnector_property;
1072 struct drm_property *tv_mode_property;
1073 struct drm_property *tv_left_margin_property;
1074 struct drm_property *tv_right_margin_property;
1075 struct drm_property *tv_top_margin_property;
1076 struct drm_property *tv_bottom_margin_property;
1077 struct drm_property *tv_brightness_property;
1078 struct drm_property *tv_contrast_property;
1079 struct drm_property *tv_flicker_reduction_property;
1080 struct drm_property *tv_overscan_property;
1081 struct drm_property *tv_saturation_property;
1082 struct drm_property *tv_hue_property;
1084 /* Optional properties */
1085 struct drm_property *scaling_mode_property;
1086 struct drm_property *aspect_ratio_property;
1087 struct drm_property *dirty_info_property;
1089 /* properties for virtual machine layout */
1090 struct drm_property *suggested_x_property;
1091 struct drm_property *suggested_y_property;
1093 /* dumb ioctl parameters */
1094 uint32_t preferred_depth, prefer_shadow;
1096 /* whether async page flip is supported or not */
1097 bool async_page_flip;
1100 uint32_t cursor_width, cursor_height;
1104 * drm_for_each_plane_mask - iterate over planes specified by bitmask
1105 * @plane: the loop cursor
1106 * @dev: the DRM device
1107 * @plane_mask: bitmask of plane indices
1109 * Iterate over all planes specified by bitmask.
1111 #define drm_for_each_plane_mask(plane, dev, plane_mask) \
1112 list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \
1113 if ((plane_mask) & (1 << drm_plane_index(plane)))
1116 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
1117 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
1118 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
1119 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
1120 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
1121 #define obj_to_property(x) container_of(x, struct drm_property, base)
1122 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
1123 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
1125 struct drm_prop_enum_list {
1130 extern int drm_crtc_init_with_planes(struct drm_device *dev,
1131 struct drm_crtc *crtc,
1132 struct drm_plane *primary,
1133 struct drm_plane *cursor,
1134 const struct drm_crtc_funcs *funcs);
1135 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
1136 extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
1139 * drm_crtc_mask - find the mask of a registered CRTC
1140 * @crtc: CRTC to find mask for
1142 * Given a registered CRTC, return the mask bit of that CRTC for an
1143 * encoder's possible_crtcs field.
1145 static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
1147 return 1 << drm_crtc_index(crtc);
1150 extern void drm_connector_ida_init(void);
1151 extern void drm_connector_ida_destroy(void);
1152 extern int drm_connector_init(struct drm_device *dev,
1153 struct drm_connector *connector,
1154 const struct drm_connector_funcs *funcs,
1155 int connector_type);
1156 int drm_connector_register(struct drm_connector *connector);
1157 void drm_connector_unregister(struct drm_connector *connector);
1159 extern void drm_connector_cleanup(struct drm_connector *connector);
1160 extern unsigned int drm_connector_index(struct drm_connector *connector);
1161 /* helper to unplug all connectors from sysfs for device */
1162 extern void drm_connector_unplug_all(struct drm_device *dev);
1164 extern int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
1165 const struct drm_bridge_funcs *funcs);
1166 extern void drm_bridge_cleanup(struct drm_bridge *bridge);
1168 extern int drm_encoder_init(struct drm_device *dev,
1169 struct drm_encoder *encoder,
1170 const struct drm_encoder_funcs *funcs,
1174 * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
1175 * @encoder: encoder to test
1176 * @crtc: crtc to test
1178 * Return false if @encoder can't be driven by @crtc, true otherwise.
1180 static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
1181 struct drm_crtc *crtc)
1183 return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
1186 extern int drm_universal_plane_init(struct drm_device *dev,
1187 struct drm_plane *plane,
1188 unsigned long possible_crtcs,
1189 const struct drm_plane_funcs *funcs,
1190 const uint32_t *formats,
1191 uint32_t format_count,
1192 enum drm_plane_type type);
1193 extern int drm_plane_init(struct drm_device *dev,
1194 struct drm_plane *plane,
1195 unsigned long possible_crtcs,
1196 const struct drm_plane_funcs *funcs,
1197 const uint32_t *formats, uint32_t format_count,
1199 extern void drm_plane_cleanup(struct drm_plane *plane);
1200 extern unsigned int drm_plane_index(struct drm_plane *plane);
1201 extern void drm_plane_force_disable(struct drm_plane *plane);
1202 extern int drm_crtc_check_viewport(const struct drm_crtc *crtc,
1204 const struct drm_display_mode *mode,
1205 const struct drm_framebuffer *fb);
1207 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
1209 extern const char *drm_get_connector_status_name(enum drm_connector_status status);
1210 extern const char *drm_get_subpixel_order_name(enum subpixel_order order);
1211 extern const char *drm_get_dpms_name(int val);
1212 extern const char *drm_get_dvi_i_subconnector_name(int val);
1213 extern const char *drm_get_dvi_i_select_name(int val);
1214 extern const char *drm_get_tv_subconnector_name(int val);
1215 extern const char *drm_get_tv_select_name(int val);
1216 extern void drm_fb_release(struct drm_file *file_priv);
1217 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
1218 extern void drm_mode_group_destroy(struct drm_mode_group *group);
1219 extern void drm_reinit_primary_mode_group(struct drm_device *dev);
1220 extern bool drm_probe_ddc(struct i2c_adapter *adapter);
1221 extern struct edid *drm_get_edid(struct drm_connector *connector,
1222 struct i2c_adapter *adapter);
1223 extern struct edid *drm_edid_duplicate(const struct edid *edid);
1224 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
1225 extern void drm_mode_config_init(struct drm_device *dev);
1226 extern void drm_mode_config_reset(struct drm_device *dev);
1227 extern void drm_mode_config_cleanup(struct drm_device *dev);
1229 extern int drm_mode_connector_set_path_property(struct drm_connector *connector,
1231 int drm_mode_connector_set_tile_property(struct drm_connector *connector);
1232 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
1233 const struct edid *edid);
1235 static inline bool drm_property_type_is(struct drm_property *property,
1238 /* instanceof for props.. handles extended type vs original types: */
1239 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1240 return (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) == type;
1241 return property->flags & type;
1244 static inline bool drm_property_type_valid(struct drm_property *property)
1246 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1247 return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1248 return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1251 extern int drm_object_property_set_value(struct drm_mode_object *obj,
1252 struct drm_property *property,
1254 extern int drm_object_property_get_value(struct drm_mode_object *obj,
1255 struct drm_property *property,
1257 extern int drm_framebuffer_init(struct drm_device *dev,
1258 struct drm_framebuffer *fb,
1259 const struct drm_framebuffer_funcs *funcs);
1260 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
1262 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb);
1263 extern void drm_framebuffer_reference(struct drm_framebuffer *fb);
1264 extern void drm_framebuffer_remove(struct drm_framebuffer *fb);
1265 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
1266 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb);
1268 extern void drm_object_attach_property(struct drm_mode_object *obj,
1269 struct drm_property *property,
1271 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1272 const char *name, int num_values);
1273 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
1275 const struct drm_prop_enum_list *props,
1277 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
1278 int flags, const char *name,
1279 const struct drm_prop_enum_list *props,
1281 uint64_t supported_bits);
1282 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
1284 uint64_t min, uint64_t max);
1285 struct drm_property *drm_property_create_signed_range(struct drm_device *dev,
1286 int flags, const char *name,
1287 int64_t min, int64_t max);
1288 struct drm_property *drm_property_create_object(struct drm_device *dev,
1289 int flags, const char *name, uint32_t type);
1290 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
1291 extern int drm_property_add_enum(struct drm_property *property, int index,
1292 uint64_t value, const char *name);
1293 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
1294 extern int drm_mode_create_tv_properties(struct drm_device *dev,
1295 unsigned int num_modes,
1297 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
1298 extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
1299 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
1300 extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
1302 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
1303 struct drm_encoder *encoder);
1304 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
1306 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
1307 uint32_t id, uint32_t type);
1310 extern int drm_mode_getresources(struct drm_device *dev,
1311 void *data, struct drm_file *file_priv);
1312 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
1313 struct drm_file *file_priv);
1314 extern int drm_mode_getcrtc(struct drm_device *dev,
1315 void *data, struct drm_file *file_priv);
1316 extern int drm_mode_getconnector(struct drm_device *dev,
1317 void *data, struct drm_file *file_priv);
1318 extern int drm_mode_set_config_internal(struct drm_mode_set *set);
1319 extern int drm_mode_setcrtc(struct drm_device *dev,
1320 void *data, struct drm_file *file_priv);
1321 extern int drm_mode_getplane(struct drm_device *dev,
1322 void *data, struct drm_file *file_priv);
1323 extern int drm_mode_setplane(struct drm_device *dev,
1324 void *data, struct drm_file *file_priv);
1325 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
1326 void *data, struct drm_file *file_priv);
1327 extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
1328 void *data, struct drm_file *file_priv);
1329 extern int drm_mode_addfb(struct drm_device *dev,
1330 void *data, struct drm_file *file_priv);
1331 extern int drm_mode_addfb2(struct drm_device *dev,
1332 void *data, struct drm_file *file_priv);
1333 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
1334 extern int drm_mode_rmfb(struct drm_device *dev,
1335 void *data, struct drm_file *file_priv);
1336 extern int drm_mode_getfb(struct drm_device *dev,
1337 void *data, struct drm_file *file_priv);
1338 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1339 void *data, struct drm_file *file_priv);
1341 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1342 void *data, struct drm_file *file_priv);
1343 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1344 void *data, struct drm_file *file_priv);
1345 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1346 void *data, struct drm_file *file_priv);
1347 extern int drm_mode_getencoder(struct drm_device *dev,
1348 void *data, struct drm_file *file_priv);
1349 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1350 void *data, struct drm_file *file_priv);
1351 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1352 void *data, struct drm_file *file_priv);
1353 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
1354 extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
1355 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1356 extern bool drm_detect_monitor_audio(struct edid *edid);
1357 extern bool drm_rgb_quant_range_selectable(struct edid *edid);
1358 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1359 void *data, struct drm_file *file_priv);
1360 extern int drm_add_modes_noedid(struct drm_connector *connector,
1361 int hdisplay, int vdisplay);
1362 extern void drm_set_preferred_mode(struct drm_connector *connector,
1363 int hpref, int vpref);
1365 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1366 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
1367 extern bool drm_edid_is_valid(struct edid *edid);
1369 extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
1371 extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
1373 extern void drm_mode_put_tile_group(struct drm_device *dev,
1374 struct drm_tile_group *tg);
1375 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1376 int hsize, int vsize, int fresh,
1379 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1380 void *data, struct drm_file *file_priv);
1381 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1382 void *data, struct drm_file *file_priv);
1383 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1384 void *data, struct drm_file *file_priv);
1385 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
1386 struct drm_file *file_priv);
1387 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
1388 struct drm_file *file_priv);
1389 extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
1390 struct drm_property *property,
1393 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1395 extern int drm_format_num_planes(uint32_t format);
1396 extern int drm_format_plane_cpp(uint32_t format, int plane);
1397 extern int drm_format_horz_chroma_subsampling(uint32_t format);
1398 extern int drm_format_vert_chroma_subsampling(uint32_t format);
1399 extern const char *drm_get_format_name(uint32_t format);
1400 extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
1401 unsigned int supported_rotations);
1402 extern unsigned int drm_rotation_simplify(unsigned int rotation,
1403 unsigned int supported_rotations);
1407 static inline struct drm_plane *drm_plane_find(struct drm_device *dev,
1410 struct drm_mode_object *mo;
1411 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE);
1412 return mo ? obj_to_plane(mo) : NULL;
1415 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
1418 struct drm_mode_object *mo;
1419 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC);
1420 return mo ? obj_to_crtc(mo) : NULL;
1423 static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
1426 struct drm_mode_object *mo;
1427 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
1428 return mo ? obj_to_encoder(mo) : NULL;
1431 static inline struct drm_connector *drm_connector_find(struct drm_device *dev,
1434 struct drm_mode_object *mo;
1435 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR);
1436 return mo ? obj_to_connector(mo) : NULL;
1439 static inline struct drm_property *drm_property_find(struct drm_device *dev,
1442 struct drm_mode_object *mo;
1443 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY);
1444 return mo ? obj_to_property(mo) : NULL;
1447 static inline struct drm_property_blob *
1448 drm_property_blob_find(struct drm_device *dev, uint32_t id)
1450 struct drm_mode_object *mo;
1451 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_BLOB);
1452 return mo ? obj_to_blob(mo) : NULL;
1455 /* Plane list iterator for legacy (overlay only) planes. */
1456 #define drm_for_each_legacy_plane(plane, planelist) \
1457 list_for_each_entry(plane, planelist, head) \
1458 if (plane->type == DRM_PLANE_TYPE_OVERLAY)
1460 #endif /* __DRM_CRTC_H__ */