2 * Copyright © 2006 Keith Packard
3 * Copyright © 2007-2008 Dave Airlie
4 * Copyright © 2007-2008 Intel Corporation
5 * Jesse Barnes <jesse.barnes@intel.com>
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
25 #ifndef __DRM_CRTC_H__
26 #define __DRM_CRTC_H__
28 #include <linux/i2c.h>
29 #include <linux/spinlock.h>
30 #include <linux/types.h>
31 #include <linux/idr.h>
33 #include <linux/hdmi.h>
34 #include <linux/media-bus-format.h>
35 #include <uapi/drm/drm_mode.h>
36 #include <uapi/drm/drm_fourcc.h>
37 #include <drm/drm_modeset_lock.h>
41 struct drm_framebuffer;
42 struct drm_object_properties;
48 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
49 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
50 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
51 #define DRM_MODE_OBJECT_MODE 0xdededede
52 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
53 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
54 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
55 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
56 #define DRM_MODE_OBJECT_ANY 0
58 struct drm_mode_object {
61 struct drm_object_properties *properties;
64 #define DRM_OBJECT_MAX_PROPERTY 24
65 struct drm_object_properties {
66 int count, atomic_count;
67 /* NOTE: if we ever start dynamically destroying properties (ie.
68 * not at drm_mode_config_cleanup() time), then we'd have to do
69 * a better job of detaching property from mode objects to avoid
70 * dangling property pointers:
72 struct drm_property *properties[DRM_OBJECT_MAX_PROPERTY];
73 /* do not read/write values directly, but use drm_object_property_get_value()
74 * and drm_object_property_set_value():
76 uint64_t values[DRM_OBJECT_MAX_PROPERTY];
79 static inline int64_t U642I64(uint64_t val)
81 return (int64_t)*((int64_t *)&val);
83 static inline uint64_t I642U64(int64_t val)
85 return (uint64_t)*((uint64_t *)&val);
88 /* rotation property bits */
89 #define DRM_ROTATE_0 0
90 #define DRM_ROTATE_90 1
91 #define DRM_ROTATE_180 2
92 #define DRM_ROTATE_270 3
93 #define DRM_REFLECT_X 4
94 #define DRM_REFLECT_Y 5
96 enum drm_connector_force {
97 DRM_FORCE_UNSPECIFIED,
99 DRM_FORCE_ON, /* force on analog part normally */
100 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
103 #include <drm/drm_modes.h>
105 enum drm_connector_status {
106 connector_status_connected = 1,
107 connector_status_disconnected = 2,
108 connector_status_unknown = 3,
111 enum subpixel_order {
113 SubPixelHorizontalRGB,
114 SubPixelHorizontalBGR,
120 #define DRM_COLOR_FORMAT_RGB444 (1<<0)
121 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
122 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
124 * Describes a given display (e.g. CRT or flat panel) and its limitations.
126 struct drm_display_info {
127 char name[DRM_DISPLAY_INFO_LEN];
130 unsigned int width_mm;
131 unsigned int height_mm;
133 /* Clock limits FIXME: storage format */
134 unsigned int min_vfreq, max_vfreq;
135 unsigned int min_hfreq, max_hfreq;
136 unsigned int pixel_clock;
139 enum subpixel_order subpixel_order;
142 const u32 *bus_formats;
143 unsigned int num_bus_formats;
145 /* Mask of supported hdmi deep color modes */
146 u8 edid_hdmi_dc_modes;
151 /* data corresponds to displayid vend/prod/serial */
152 struct drm_tile_group {
153 struct kref refcount;
154 struct drm_device *dev;
159 struct drm_framebuffer_funcs {
160 /* note: use drm_framebuffer_remove() */
161 void (*destroy)(struct drm_framebuffer *framebuffer);
162 int (*create_handle)(struct drm_framebuffer *fb,
163 struct drm_file *file_priv,
164 unsigned int *handle);
166 * Optional callback for the dirty fb ioctl.
168 * Userspace can notify the driver via this callback
169 * that a area of the framebuffer has changed and should
170 * be flushed to the display hardware.
172 * See documentation in drm_mode.h for the struct
173 * drm_mode_fb_dirty_cmd for more information as all
174 * the semantics and arguments have a one to one mapping
177 int (*dirty)(struct drm_framebuffer *framebuffer,
178 struct drm_file *file_priv, unsigned flags,
179 unsigned color, struct drm_clip_rect *clips,
183 struct drm_framebuffer {
184 struct drm_device *dev;
186 * Note that the fb is refcounted for the benefit of driver internals,
187 * for example some hw, disabling a CRTC/plane is asynchronous, and
188 * scanout does not actually complete until the next vblank. So some
189 * cleanup (like releasing the reference(s) on the backing GEM bo(s))
190 * should be deferred. In cases like this, the driver would like to
191 * hold a ref to the fb even though it has already been removed from
192 * userspace perspective.
194 struct kref refcount;
196 * Place on the dev->mode_config.fb_list, access protected by
197 * dev->mode_config.fb_lock.
199 struct list_head head;
200 struct drm_mode_object base;
201 const struct drm_framebuffer_funcs *funcs;
202 unsigned int pitches[4];
203 unsigned int offsets[4];
204 uint64_t modifier[4];
207 /* depth can be 15 or 16 */
211 uint32_t pixel_format; /* fourcc format */
212 struct list_head filp_head;
213 /* if you are using the helper */
214 void *helper_private;
217 struct drm_property_blob {
218 struct drm_mode_object base;
219 struct drm_device *dev;
220 struct kref refcount;
221 struct list_head head_global;
222 struct list_head head_file;
224 unsigned char data[];
227 struct drm_property_enum {
229 struct list_head head;
230 char name[DRM_PROP_NAME_LEN];
233 struct drm_property {
234 struct list_head head;
235 struct drm_mode_object base;
237 char name[DRM_PROP_NAME_LEN];
240 struct drm_device *dev;
242 struct list_head enum_list;
246 struct drm_connector;
248 struct drm_pending_vblank_event;
251 struct drm_atomic_state;
254 * struct drm_crtc_state - mutable CRTC state
255 * @crtc: backpointer to the CRTC
256 * @enable: whether the CRTC should be enabled, gates all other state
257 * @active: whether the CRTC is actively displaying (used for DPMS)
258 * @planes_changed: planes on this crtc are updated
259 * @mode_changed: crtc_state->mode or crtc_state->enable has been changed
260 * @active_changed: crtc_state->active has been toggled.
261 * @connectors_changed: connectors to this crtc have been updated
262 * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
263 * @last_vblank_count: for helpers and drivers to capture the vblank of the
264 * update to ensure framebuffer cleanup isn't done too early
265 * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
266 * @mode: current mode timings
267 * @event: optional pointer to a DRM event to signal upon completion of the
269 * @state: backpointer to global drm_atomic_state
271 * Note that the distinction between @enable and @active is rather subtile:
272 * Flipping @active while @enable is set without changing anything else may
273 * never return in a failure from the ->atomic_check callback. Userspace assumes
274 * that a DPMS On will always succeed. In other words: @enable controls resource
275 * assignment, @active controls the actual hardware state.
277 struct drm_crtc_state {
278 struct drm_crtc *crtc;
283 /* computed state bits used by helpers and drivers */
284 bool planes_changed : 1;
285 bool mode_changed : 1;
286 bool active_changed : 1;
287 bool connectors_changed : 1;
289 /* attached planes bitmask:
290 * WARNING: transitional helpers do not maintain plane_mask so
291 * drivers not converted over to atomic helpers should not rely
292 * on plane_mask being accurate!
296 /* last_vblank_count: for vblank waits before cleanup */
297 u32 last_vblank_count;
299 /* adjusted_mode: for use by helpers and drivers */
300 struct drm_display_mode adjusted_mode;
302 struct drm_display_mode mode;
304 /* blob property to expose current mode to atomic userspace */
305 struct drm_property_blob *mode_blob;
307 struct drm_pending_vblank_event *event;
309 struct drm_atomic_state *state;
313 * struct drm_crtc_funcs - control CRTCs for a given device
314 * @save: save CRTC state
315 * @restore: restore CRTC state
316 * @reset: reset CRTC after state has been invalidated (e.g. resume)
317 * @cursor_set: setup the cursor
318 * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set
319 * @cursor_move: move the cursor
320 * @gamma_set: specify color ramp for CRTC
321 * @destroy: deinit and free object
322 * @set_property: called when a property is changed
323 * @set_config: apply a new CRTC configuration
324 * @page_flip: initiate a page flip
325 * @atomic_duplicate_state: duplicate the atomic state for this CRTC
326 * @atomic_destroy_state: destroy an atomic state for this CRTC
327 * @atomic_set_property: set a property on an atomic state for this CRTC
328 * (do not call directly, use drm_atomic_crtc_set_property())
329 * @atomic_get_property: get a property on an atomic state for this CRTC
330 * (do not call directly, use drm_atomic_crtc_get_property())
332 * The drm_crtc_funcs structure is the central CRTC management structure
333 * in the DRM. Each CRTC controls one or more connectors (note that the name
334 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
335 * connectors, not just CRTs).
337 * Each driver is responsible for filling out this structure at startup time,
338 * in addition to providing other modesetting features, like i2c and DDC
341 struct drm_crtc_funcs {
342 /* Save CRTC state */
343 void (*save)(struct drm_crtc *crtc); /* suspend? */
344 /* Restore CRTC state */
345 void (*restore)(struct drm_crtc *crtc); /* resume? */
346 /* Reset CRTC state */
347 void (*reset)(struct drm_crtc *crtc);
349 /* cursor controls */
350 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
351 uint32_t handle, uint32_t width, uint32_t height);
352 int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
353 uint32_t handle, uint32_t width, uint32_t height,
354 int32_t hot_x, int32_t hot_y);
355 int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
357 /* Set gamma on the CRTC */
358 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
359 uint32_t start, uint32_t size);
360 /* Object destroy routine */
361 void (*destroy)(struct drm_crtc *crtc);
363 int (*set_config)(struct drm_mode_set *set);
366 * Flip to the given framebuffer. This implements the page
367 * flip ioctl described in drm_mode.h, specifically, the
368 * implementation must return immediately and block all
369 * rendering to the current fb until the flip has completed.
370 * If userspace set the event flag in the ioctl, the event
371 * argument will point to an event to send back when the flip
372 * completes, otherwise it will be NULL.
374 int (*page_flip)(struct drm_crtc *crtc,
375 struct drm_framebuffer *fb,
376 struct drm_pending_vblank_event *event,
379 int (*set_property)(struct drm_crtc *crtc,
380 struct drm_property *property, uint64_t val);
382 /* atomic update handling */
383 struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc);
384 void (*atomic_destroy_state)(struct drm_crtc *crtc,
385 struct drm_crtc_state *state);
386 int (*atomic_set_property)(struct drm_crtc *crtc,
387 struct drm_crtc_state *state,
388 struct drm_property *property,
390 int (*atomic_get_property)(struct drm_crtc *crtc,
391 const struct drm_crtc_state *state,
392 struct drm_property *property,
397 * struct drm_crtc - central CRTC control structure
398 * @dev: parent DRM device
399 * @port: OF node used by drm_of_find_possible_crtcs()
400 * @head: list management
401 * @mutex: per-CRTC locking
402 * @base: base KMS object for ID tracking etc.
403 * @primary: primary plane for this CRTC
404 * @cursor: cursor plane for this CRTC
405 * @cursor_x: current x position of the cursor, used for universal cursor planes
406 * @cursor_y: current y position of the cursor, used for universal cursor planes
407 * @enabled: is this CRTC enabled?
408 * @mode: current mode timings
409 * @hwmode: mode timings as programmed to hw regs
410 * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
411 * invert the width/height of the crtc. This is used if the driver
412 * is performing 90 or 270 degree rotated scanout
413 * @x: x position on screen
414 * @y: y position on screen
415 * @funcs: CRTC control functions
416 * @gamma_size: size of gamma ramp
417 * @gamma_store: gamma ramp values
418 * @framedur_ns: precise frame timing
419 * @linedur_ns: precise line timing
420 * @pixeldur_ns: precise pixel timing
421 * @helper_private: mid-layer private data
422 * @properties: property tracking for this CRTC
423 * @state: current atomic state for this CRTC
424 * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for
427 * Each CRTC may have one or more connectors associated with it. This structure
428 * allows the CRTC to be controlled.
431 struct drm_device *dev;
432 struct device_node *port;
433 struct list_head head;
438 * This provides a read lock for the overall crtc state (mode, dpms
439 * state, ...) and a write lock for everything which can be update
440 * without a full modeset (fb, cursor data, ...)
442 struct drm_modeset_lock mutex;
444 struct drm_mode_object base;
446 /* primary and cursor planes for CRTC */
447 struct drm_plane *primary;
448 struct drm_plane *cursor;
450 /* position of cursor plane on crtc */
456 /* Requested mode from modesetting. */
457 struct drm_display_mode mode;
459 /* Programmed mode in hw, after adjustments for encoders,
460 * crtc, panel scaling etc. Needed for timestamping etc.
462 struct drm_display_mode hwmode;
464 bool invert_dimensions;
467 const struct drm_crtc_funcs *funcs;
469 /* CRTC gamma size for reporting to userspace */
471 uint16_t *gamma_store;
473 /* Constants needed for precise vblank and swap timestamping. */
474 int framedur_ns, linedur_ns, pixeldur_ns;
476 /* if you are using the helper */
477 const void *helper_private;
479 struct drm_object_properties properties;
481 struct drm_crtc_state *state;
484 * For legacy crtc ioctls so that atomic drivers can get at the locking
487 struct drm_modeset_acquire_ctx *acquire_ctx;
491 * struct drm_connector_state - mutable connector state
492 * @connector: backpointer to the connector
493 * @crtc: CRTC to connect connector to, NULL if disabled
494 * @best_encoder: can be used by helpers and drivers to select the encoder
495 * @state: backpointer to global drm_atomic_state
497 struct drm_connector_state {
498 struct drm_connector *connector;
500 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_connector() */
502 struct drm_encoder *best_encoder;
504 struct drm_atomic_state *state;
508 * struct drm_connector_funcs - control connectors on a given device
509 * @dpms: set power state
510 * @save: save connector state
511 * @restore: restore connector state
512 * @reset: reset connector after state has been invalidated (e.g. resume)
513 * @detect: is this connector active?
514 * @fill_modes: fill mode list for this connector
515 * @set_property: property for this connector may need an update
516 * @destroy: make object go away
517 * @force: notify the driver that the connector is forced on
518 * @atomic_duplicate_state: duplicate the atomic state for this connector
519 * @atomic_destroy_state: destroy an atomic state for this connector
520 * @atomic_set_property: set a property on an atomic state for this connector
521 * (do not call directly, use drm_atomic_connector_set_property())
522 * @atomic_get_property: get a property on an atomic state for this connector
523 * (do not call directly, use drm_atomic_connector_get_property())
525 * Each CRTC may have one or more connectors attached to it. The functions
526 * below allow the core DRM code to control connectors, enumerate available modes,
529 struct drm_connector_funcs {
530 int (*dpms)(struct drm_connector *connector, int mode);
531 void (*save)(struct drm_connector *connector);
532 void (*restore)(struct drm_connector *connector);
533 void (*reset)(struct drm_connector *connector);
535 /* Check to see if anything is attached to the connector.
536 * @force is set to false whilst polling, true when checking the
537 * connector due to user request. @force can be used by the driver
538 * to avoid expensive, destructive operations during automated
541 enum drm_connector_status (*detect)(struct drm_connector *connector,
543 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
544 int (*set_property)(struct drm_connector *connector, struct drm_property *property,
546 void (*destroy)(struct drm_connector *connector);
547 void (*force)(struct drm_connector *connector);
549 /* atomic update handling */
550 struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
551 void (*atomic_destroy_state)(struct drm_connector *connector,
552 struct drm_connector_state *state);
553 int (*atomic_set_property)(struct drm_connector *connector,
554 struct drm_connector_state *state,
555 struct drm_property *property,
557 int (*atomic_get_property)(struct drm_connector *connector,
558 const struct drm_connector_state *state,
559 struct drm_property *property,
564 * struct drm_encoder_funcs - encoder controls
565 * @reset: reset state (e.g. at init or resume time)
566 * @destroy: cleanup and free associated data
568 * Encoders sit between CRTCs and connectors.
570 struct drm_encoder_funcs {
571 void (*reset)(struct drm_encoder *encoder);
572 void (*destroy)(struct drm_encoder *encoder);
575 #define DRM_CONNECTOR_MAX_ENCODER 3
578 * struct drm_encoder - central DRM encoder structure
579 * @dev: parent DRM device
580 * @head: list management
581 * @base: base KMS object
582 * @name: encoder name
583 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
584 * @possible_crtcs: bitmask of potential CRTC bindings
585 * @possible_clones: bitmask of potential sibling encoders for cloning
586 * @crtc: currently bound CRTC
587 * @bridge: bridge associated to the encoder
588 * @funcs: control functions
589 * @helper_private: mid-layer private data
591 * CRTCs drive pixels to encoders, which convert them into signals
592 * appropriate for a given connector or set of connectors.
595 struct drm_device *dev;
596 struct list_head head;
598 struct drm_mode_object base;
601 uint32_t possible_crtcs;
602 uint32_t possible_clones;
604 struct drm_crtc *crtc;
605 struct drm_bridge *bridge;
606 const struct drm_encoder_funcs *funcs;
607 const void *helper_private;
610 /* should we poll this connector for connects and disconnects */
611 /* hot plug detectable */
612 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
613 /* poll for connections */
614 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
615 /* can cleanly poll for disconnections without flickering the screen */
616 /* DACs should rarely do this without a lot of testing */
617 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
619 #define MAX_ELD_BYTES 128
622 * struct drm_connector - central DRM connector control structure
623 * @dev: parent DRM device
624 * @kdev: kernel device for sysfs attributes
625 * @attr: sysfs attributes
626 * @head: list management
627 * @base: base KMS object
628 * @name: connector name
629 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
630 * @connector_type_id: index into connector type enum
631 * @interlace_allowed: can this connector handle interlaced modes?
632 * @doublescan_allowed: can this connector handle doublescan?
633 * @stereo_allowed: can this connector handle stereo modes?
634 * @modes: modes available on this connector (from fill_modes() + user)
635 * @status: one of the drm_connector_status enums (connected, not, or unknown)
636 * @probed_modes: list of modes derived directly from the display
637 * @display_info: information about attached display (e.g. from EDID)
638 * @funcs: connector control functions
639 * @edid_blob_ptr: DRM property containing EDID if present
640 * @properties: property tracking for this connector
641 * @path_blob_ptr: DRM blob property data for the DP MST path property
642 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
643 * @dpms: current dpms state
644 * @helper_private: mid-layer private data
645 * @cmdline_mode: mode line parsed from the kernel cmdline for this connector
646 * @force: a %DRM_FORCE_<foo> state for forced mode sets
647 * @override_edid: has the EDID been overwritten through debugfs for testing?
648 * @encoder_ids: valid encoders for this connector
649 * @encoder: encoder driving this connector, if any
650 * @eld: EDID-like data, if present
651 * @dvi_dual: dual link DVI, if found
652 * @max_tmds_clock: max clock rate, if found
653 * @latency_present: AV delay info from ELD, if found
654 * @video_latency: video latency info from ELD, if found
655 * @audio_latency: audio latency info from ELD, if found
656 * @null_edid_counter: track sinks that give us all zeros for the EDID
657 * @bad_edid_counter: track sinks that give us an EDID with invalid checksum
658 * @edid_corrupt: indicates whether the last read EDID was corrupt
659 * @debugfs_entry: debugfs directory for this connector
660 * @state: current atomic state for this connector
661 * @has_tile: is this connector connected to a tiled monitor
662 * @tile_group: tile group for the connected monitor
663 * @tile_is_single_monitor: whether the tile is one monitor housing
664 * @num_h_tile: number of horizontal tiles in the tile group
665 * @num_v_tile: number of vertical tiles in the tile group
666 * @tile_h_loc: horizontal location of this tile
667 * @tile_v_loc: vertical location of this tile
668 * @tile_h_size: horizontal size of this tile.
669 * @tile_v_size: vertical size of this tile.
671 * Each connector may be connected to one or more CRTCs, or may be clonable by
672 * another connector if they can share a CRTC. Each connector also has a specific
673 * position in the broader display (referred to as a 'screen' though it could
674 * span multiple monitors).
676 struct drm_connector {
677 struct drm_device *dev;
679 struct device_attribute *attr;
680 struct list_head head;
682 struct drm_mode_object base;
686 int connector_type_id;
687 bool interlace_allowed;
688 bool doublescan_allowed;
690 struct list_head modes; /* list of modes on this connector */
692 enum drm_connector_status status;
694 /* these are modes added by probing with DDC or the BIOS */
695 struct list_head probed_modes;
697 struct drm_display_info display_info;
698 const struct drm_connector_funcs *funcs;
700 struct drm_property_blob *edid_blob_ptr;
701 struct drm_object_properties properties;
703 struct drm_property_blob *path_blob_ptr;
705 struct drm_property_blob *tile_blob_ptr;
707 uint8_t polled; /* DRM_CONNECTOR_POLL_* */
709 /* requested DPMS state */
712 const void *helper_private;
714 /* forced on connector */
715 struct drm_cmdline_mode cmdline_mode;
716 enum drm_connector_force force;
718 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
719 struct drm_encoder *encoder; /* currently active encoder */
722 uint8_t eld[MAX_ELD_BYTES];
724 int max_tmds_clock; /* in MHz */
725 bool latency_present[2];
726 int video_latency[2]; /* [0]: progressive, [1]: interlaced */
727 int audio_latency[2];
728 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
729 unsigned bad_edid_counter;
731 /* Flag for raw EDID header corruption - used in Displayport
732 * compliance testing - * Displayport Link CTS Core 1.2 rev1.1 4.2.2.6
736 struct dentry *debugfs_entry;
738 struct drm_connector_state *state;
742 struct drm_tile_group *tile_group;
743 bool tile_is_single_monitor;
745 uint8_t num_h_tile, num_v_tile;
746 uint8_t tile_h_loc, tile_v_loc;
747 uint16_t tile_h_size, tile_v_size;
751 * struct drm_plane_state - mutable plane state
752 * @plane: backpointer to the plane
753 * @crtc: currently bound CRTC, NULL if disabled
754 * @fb: currently bound framebuffer
755 * @fence: optional fence to wait for before scanning out @fb
756 * @crtc_x: left position of visible portion of plane on crtc
757 * @crtc_y: upper position of visible portion of plane on crtc
758 * @crtc_w: width of visible portion of plane on crtc
759 * @crtc_h: height of visible portion of plane on crtc
760 * @src_x: left position of visible portion of plane within
762 * @src_y: upper position of visible portion of plane within
764 * @src_w: width of visible portion of plane (in 16.16)
765 * @src_h: height of visible portion of plane (in 16.16)
766 * @state: backpointer to global drm_atomic_state
768 struct drm_plane_state {
769 struct drm_plane *plane;
771 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_plane() */
772 struct drm_framebuffer *fb; /* do not write directly, use drm_atomic_set_fb_for_plane() */
775 /* Signed dest location allows it to be partially off screen */
776 int32_t crtc_x, crtc_y;
777 uint32_t crtc_w, crtc_h;
779 /* Source values are 16.16 fixed point */
780 uint32_t src_x, src_y;
781 uint32_t src_h, src_w;
784 unsigned int rotation;
786 struct drm_atomic_state *state;
791 * struct drm_plane_funcs - driver plane control functions
792 * @update_plane: update the plane configuration
793 * @disable_plane: shut down the plane
794 * @destroy: clean up plane resources
795 * @reset: reset plane after state has been invalidated (e.g. resume)
796 * @set_property: called when a property is changed
797 * @atomic_duplicate_state: duplicate the atomic state for this plane
798 * @atomic_destroy_state: destroy an atomic state for this plane
799 * @atomic_set_property: set a property on an atomic state for this plane
800 * (do not call directly, use drm_atomic_plane_set_property())
801 * @atomic_get_property: get a property on an atomic state for this plane
802 * (do not call directly, use drm_atomic_plane_get_property())
804 struct drm_plane_funcs {
805 int (*update_plane)(struct drm_plane *plane,
806 struct drm_crtc *crtc, struct drm_framebuffer *fb,
807 int crtc_x, int crtc_y,
808 unsigned int crtc_w, unsigned int crtc_h,
809 uint32_t src_x, uint32_t src_y,
810 uint32_t src_w, uint32_t src_h);
811 int (*disable_plane)(struct drm_plane *plane);
812 void (*destroy)(struct drm_plane *plane);
813 void (*reset)(struct drm_plane *plane);
815 int (*set_property)(struct drm_plane *plane,
816 struct drm_property *property, uint64_t val);
818 /* atomic update handling */
819 struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane);
820 void (*atomic_destroy_state)(struct drm_plane *plane,
821 struct drm_plane_state *state);
822 int (*atomic_set_property)(struct drm_plane *plane,
823 struct drm_plane_state *state,
824 struct drm_property *property,
826 int (*atomic_get_property)(struct drm_plane *plane,
827 const struct drm_plane_state *state,
828 struct drm_property *property,
832 enum drm_plane_type {
833 DRM_PLANE_TYPE_OVERLAY,
834 DRM_PLANE_TYPE_PRIMARY,
835 DRM_PLANE_TYPE_CURSOR,
839 * struct drm_plane - central DRM plane control structure
840 * @dev: DRM device this plane belongs to
841 * @head: for list management
842 * @base: base mode object
843 * @possible_crtcs: pipes this plane can be bound to
844 * @format_types: array of formats supported by this plane
845 * @format_count: number of formats supported
846 * @format_default: driver hasn't supplied supported formats for the plane
847 * @crtc: currently bound CRTC
848 * @fb: currently bound fb
849 * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by
850 * drm_mode_set_config_internal() to implement correct refcounting.
851 * @funcs: helper functions
852 * @properties: property tracking for this plane
853 * @type: type of plane (overlay, primary, cursor)
854 * @state: current atomic state for this plane
857 struct drm_device *dev;
858 struct list_head head;
860 struct drm_modeset_lock mutex;
862 struct drm_mode_object base;
864 uint32_t possible_crtcs;
865 uint32_t *format_types;
866 unsigned int format_count;
869 struct drm_crtc *crtc;
870 struct drm_framebuffer *fb;
872 struct drm_framebuffer *old_fb;
874 const struct drm_plane_funcs *funcs;
876 struct drm_object_properties properties;
878 enum drm_plane_type type;
880 const void *helper_private;
882 struct drm_plane_state *state;
886 * struct drm_bridge_funcs - drm_bridge control functions
887 * @attach: Called during drm_bridge_attach
888 * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge
889 * @disable: Called right before encoder prepare, disables the bridge
890 * @post_disable: Called right after encoder prepare, for lockstepped disable
891 * @mode_set: Set this mode to the bridge
892 * @pre_enable: Called right before encoder commit, for lockstepped commit
893 * @enable: Called right after encoder commit, enables the bridge
895 struct drm_bridge_funcs {
896 int (*attach)(struct drm_bridge *bridge);
897 bool (*mode_fixup)(struct drm_bridge *bridge,
898 const struct drm_display_mode *mode,
899 struct drm_display_mode *adjusted_mode);
900 void (*disable)(struct drm_bridge *bridge);
901 void (*post_disable)(struct drm_bridge *bridge);
902 void (*mode_set)(struct drm_bridge *bridge,
903 struct drm_display_mode *mode,
904 struct drm_display_mode *adjusted_mode);
905 void (*pre_enable)(struct drm_bridge *bridge);
906 void (*enable)(struct drm_bridge *bridge);
910 * struct drm_bridge - central DRM bridge control structure
911 * @dev: DRM device this bridge belongs to
912 * @encoder: encoder to which this bridge is connected
913 * @next: the next bridge in the encoder chain
914 * @of_node: device node pointer to the bridge
915 * @list: to keep track of all added bridges
916 * @base: base mode object
917 * @funcs: control functions
918 * @driver_private: pointer to the bridge driver's internal context
921 struct drm_device *dev;
922 struct drm_encoder *encoder;
923 struct drm_bridge *next;
925 struct device_node *of_node;
927 struct list_head list;
929 const struct drm_bridge_funcs *funcs;
930 void *driver_private;
934 * struct drm_atomic_state - the global state object for atomic updates
935 * @dev: parent DRM device
936 * @allow_modeset: allow full modeset
937 * @legacy_cursor_update: hint to enforce legacy cursor ioctl semantics
938 * @planes: pointer to array of plane pointers
939 * @plane_states: pointer to array of plane states pointers
940 * @crtcs: pointer to array of CRTC pointers
941 * @crtc_states: pointer to array of CRTC states pointers
942 * @num_connector: size of the @connectors and @connector_states arrays
943 * @connectors: pointer to array of connector pointers
944 * @connector_states: pointer to array of connector states pointers
945 * @acquire_ctx: acquire context for this atomic modeset state update
947 struct drm_atomic_state {
948 struct drm_device *dev;
949 bool allow_modeset : 1;
950 bool legacy_cursor_update : 1;
951 struct drm_plane **planes;
952 struct drm_plane_state **plane_states;
953 struct drm_crtc **crtcs;
954 struct drm_crtc_state **crtc_states;
956 struct drm_connector **connectors;
957 struct drm_connector_state **connector_states;
959 struct drm_modeset_acquire_ctx *acquire_ctx;
964 * struct drm_mode_set - new values for a CRTC config change
965 * @fb: framebuffer to use for new config
966 * @crtc: CRTC whose configuration we're about to change
967 * @mode: mode timings to use
968 * @x: position of this CRTC relative to @fb
969 * @y: position of this CRTC relative to @fb
970 * @connectors: array of connectors to drive with this CRTC if possible
971 * @num_connectors: size of @connectors array
973 * Represents a single crtc the connectors that it drives with what mode
974 * and from which framebuffer it scans out from.
976 * This is used to set modes.
978 struct drm_mode_set {
979 struct drm_framebuffer *fb;
980 struct drm_crtc *crtc;
981 struct drm_display_mode *mode;
986 struct drm_connector **connectors;
987 size_t num_connectors;
991 * struct drm_mode_config_funcs - basic driver provided mode setting functions
992 * @fb_create: create a new framebuffer object
993 * @output_poll_changed: function to handle output configuration changes
994 * @atomic_check: check whether a given atomic state update is possible
995 * @atomic_commit: commit an atomic state update previously verified with
997 * @atomic_state_alloc: allocate a new atomic state
998 * @atomic_state_clear: clear the atomic state
999 * @atomic_state_free: free the atomic state
1001 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
1004 struct drm_mode_config_funcs {
1005 struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
1006 struct drm_file *file_priv,
1007 struct drm_mode_fb_cmd2 *mode_cmd);
1008 void (*output_poll_changed)(struct drm_device *dev);
1010 int (*atomic_check)(struct drm_device *dev,
1011 struct drm_atomic_state *a);
1012 int (*atomic_commit)(struct drm_device *dev,
1013 struct drm_atomic_state *a,
1015 struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev);
1016 void (*atomic_state_clear)(struct drm_atomic_state *state);
1017 void (*atomic_state_free)(struct drm_atomic_state *state);
1021 * struct drm_mode_config - Mode configuration control structure
1022 * @mutex: mutex protecting KMS related lists and structures
1023 * @connection_mutex: ww mutex protecting connector state and routing
1024 * @acquire_ctx: global implicit acquire context used by atomic drivers for
1026 * @idr_mutex: mutex for KMS ID allocation and management
1027 * @crtc_idr: main KMS ID tracking object
1028 * @fb_lock: mutex to protect fb state and lists
1029 * @num_fb: number of fbs available
1030 * @fb_list: list of framebuffers available
1031 * @num_connector: number of connectors on this device
1032 * @connector_list: list of connector objects
1033 * @num_encoder: number of encoders on this device
1034 * @encoder_list: list of encoder objects
1035 * @num_overlay_plane: number of overlay planes on this device
1036 * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device
1037 * @plane_list: list of plane objects
1038 * @num_crtc: number of CRTCs on this device
1039 * @crtc_list: list of CRTC objects
1040 * @property_list: list of property objects
1041 * @min_width: minimum pixel width on this device
1042 * @min_height: minimum pixel height on this device
1043 * @max_width: maximum pixel width on this device
1044 * @max_height: maximum pixel height on this device
1045 * @funcs: core driver provided mode setting functions
1046 * @fb_base: base address of the framebuffer
1047 * @poll_enabled: track polling support for this device
1048 * @poll_running: track polling status for this device
1049 * @output_poll_work: delayed work for polling in process context
1050 * @property_blob_list: list of all the blob property objects
1051 * @blob_lock: mutex for blob property allocation and management
1052 * @*_property: core property tracking
1053 * @preferred_depth: preferred RBG pixel depth, used by fb helpers
1054 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering
1055 * @async_page_flip: does this device support async flips on the primary plane?
1056 * @cursor_width: hint to userspace for max cursor width
1057 * @cursor_height: hint to userspace for max cursor height
1059 * Core mode resource tracking structure. All CRTC, encoders, and connectors
1060 * enumerated by the driver are added here, as are global properties. Some
1061 * global restrictions are also here, e.g. dimension restrictions.
1063 struct drm_mode_config {
1064 struct mutex mutex; /* protects configuration (mode lists etc.) */
1065 struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */
1066 struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
1067 struct mutex idr_mutex; /* for IDR management */
1068 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1069 struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1070 /* this is limited to one for now */
1072 struct mutex fb_lock; /* proctects global and per-file fb lists */
1074 struct list_head fb_list;
1077 struct list_head connector_list;
1079 struct list_head encoder_list;
1082 * Track # of overlay planes separately from # of total planes. By
1083 * default we only advertise overlay planes to userspace; if userspace
1084 * sets the "universal plane" capability bit, we'll go ahead and
1085 * expose all planes.
1087 int num_overlay_plane;
1088 int num_total_plane;
1089 struct list_head plane_list;
1092 struct list_head crtc_list;
1094 struct list_head property_list;
1096 int min_width, min_height;
1097 int max_width, max_height;
1098 const struct drm_mode_config_funcs *funcs;
1099 resource_size_t fb_base;
1101 /* output poll support */
1105 struct delayed_work output_poll_work;
1107 struct mutex blob_lock;
1109 /* pointers to standard properties */
1110 struct list_head property_blob_list;
1111 struct drm_property *edid_property;
1112 struct drm_property *dpms_property;
1113 struct drm_property *path_property;
1114 struct drm_property *tile_property;
1115 struct drm_property *plane_type_property;
1116 struct drm_property *rotation_property;
1117 struct drm_property *prop_src_x;
1118 struct drm_property *prop_src_y;
1119 struct drm_property *prop_src_w;
1120 struct drm_property *prop_src_h;
1121 struct drm_property *prop_crtc_x;
1122 struct drm_property *prop_crtc_y;
1123 struct drm_property *prop_crtc_w;
1124 struct drm_property *prop_crtc_h;
1125 struct drm_property *prop_fb_id;
1126 struct drm_property *prop_crtc_id;
1127 struct drm_property *prop_active;
1128 struct drm_property *prop_mode_id;
1130 /* DVI-I properties */
1131 struct drm_property *dvi_i_subconnector_property;
1132 struct drm_property *dvi_i_select_subconnector_property;
1135 struct drm_property *tv_subconnector_property;
1136 struct drm_property *tv_select_subconnector_property;
1137 struct drm_property *tv_mode_property;
1138 struct drm_property *tv_left_margin_property;
1139 struct drm_property *tv_right_margin_property;
1140 struct drm_property *tv_top_margin_property;
1141 struct drm_property *tv_bottom_margin_property;
1142 struct drm_property *tv_brightness_property;
1143 struct drm_property *tv_contrast_property;
1144 struct drm_property *tv_flicker_reduction_property;
1145 struct drm_property *tv_overscan_property;
1146 struct drm_property *tv_saturation_property;
1147 struct drm_property *tv_hue_property;
1149 /* Optional properties */
1150 struct drm_property *scaling_mode_property;
1151 struct drm_property *aspect_ratio_property;
1152 struct drm_property *dirty_info_property;
1154 /* properties for virtual machine layout */
1155 struct drm_property *suggested_x_property;
1156 struct drm_property *suggested_y_property;
1158 /* dumb ioctl parameters */
1159 uint32_t preferred_depth, prefer_shadow;
1161 /* whether async page flip is supported or not */
1162 bool async_page_flip;
1164 /* whether the driver supports fb modifiers */
1165 bool allow_fb_modifiers;
1168 uint32_t cursor_width, cursor_height;
1172 * drm_for_each_plane_mask - iterate over planes specified by bitmask
1173 * @plane: the loop cursor
1174 * @dev: the DRM device
1175 * @plane_mask: bitmask of plane indices
1177 * Iterate over all planes specified by bitmask.
1179 #define drm_for_each_plane_mask(plane, dev, plane_mask) \
1180 list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \
1181 if ((plane_mask) & (1 << drm_plane_index(plane)))
1184 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
1185 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
1186 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
1187 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
1188 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
1189 #define obj_to_property(x) container_of(x, struct drm_property, base)
1190 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
1191 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
1193 struct drm_prop_enum_list {
1198 extern int drm_crtc_init_with_planes(struct drm_device *dev,
1199 struct drm_crtc *crtc,
1200 struct drm_plane *primary,
1201 struct drm_plane *cursor,
1202 const struct drm_crtc_funcs *funcs);
1203 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
1204 extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
1207 * drm_crtc_mask - find the mask of a registered CRTC
1208 * @crtc: CRTC to find mask for
1210 * Given a registered CRTC, return the mask bit of that CRTC for an
1211 * encoder's possible_crtcs field.
1213 static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
1215 return 1 << drm_crtc_index(crtc);
1218 extern void drm_connector_ida_init(void);
1219 extern void drm_connector_ida_destroy(void);
1220 extern int drm_connector_init(struct drm_device *dev,
1221 struct drm_connector *connector,
1222 const struct drm_connector_funcs *funcs,
1223 int connector_type);
1224 int drm_connector_register(struct drm_connector *connector);
1225 void drm_connector_unregister(struct drm_connector *connector);
1227 extern void drm_connector_cleanup(struct drm_connector *connector);
1228 extern unsigned int drm_connector_index(struct drm_connector *connector);
1229 /* helper to unplug all connectors from sysfs for device */
1230 extern void drm_connector_unplug_all(struct drm_device *dev);
1232 extern int drm_bridge_add(struct drm_bridge *bridge);
1233 extern void drm_bridge_remove(struct drm_bridge *bridge);
1234 extern struct drm_bridge *of_drm_find_bridge(struct device_node *np);
1235 extern int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge);
1237 bool drm_bridge_mode_fixup(struct drm_bridge *bridge,
1238 const struct drm_display_mode *mode,
1239 struct drm_display_mode *adjusted_mode);
1240 void drm_bridge_disable(struct drm_bridge *bridge);
1241 void drm_bridge_post_disable(struct drm_bridge *bridge);
1242 void drm_bridge_mode_set(struct drm_bridge *bridge,
1243 struct drm_display_mode *mode,
1244 struct drm_display_mode *adjusted_mode);
1245 void drm_bridge_pre_enable(struct drm_bridge *bridge);
1246 void drm_bridge_enable(struct drm_bridge *bridge);
1248 extern int drm_encoder_init(struct drm_device *dev,
1249 struct drm_encoder *encoder,
1250 const struct drm_encoder_funcs *funcs,
1254 * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
1255 * @encoder: encoder to test
1256 * @crtc: crtc to test
1258 * Return false if @encoder can't be driven by @crtc, true otherwise.
1260 static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
1261 struct drm_crtc *crtc)
1263 return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
1266 extern int drm_universal_plane_init(struct drm_device *dev,
1267 struct drm_plane *plane,
1268 unsigned long possible_crtcs,
1269 const struct drm_plane_funcs *funcs,
1270 const uint32_t *formats,
1271 unsigned int format_count,
1272 enum drm_plane_type type);
1273 extern int drm_plane_init(struct drm_device *dev,
1274 struct drm_plane *plane,
1275 unsigned long possible_crtcs,
1276 const struct drm_plane_funcs *funcs,
1277 const uint32_t *formats, unsigned int format_count,
1279 extern void drm_plane_cleanup(struct drm_plane *plane);
1280 extern unsigned int drm_plane_index(struct drm_plane *plane);
1281 extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx);
1282 extern void drm_plane_force_disable(struct drm_plane *plane);
1283 extern int drm_plane_check_pixel_format(const struct drm_plane *plane,
1285 extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
1286 int *hdisplay, int *vdisplay);
1287 extern int drm_crtc_check_viewport(const struct drm_crtc *crtc,
1289 const struct drm_display_mode *mode,
1290 const struct drm_framebuffer *fb);
1292 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
1294 extern const char *drm_get_connector_status_name(enum drm_connector_status status);
1295 extern const char *drm_get_subpixel_order_name(enum subpixel_order order);
1296 extern const char *drm_get_dpms_name(int val);
1297 extern const char *drm_get_dvi_i_subconnector_name(int val);
1298 extern const char *drm_get_dvi_i_select_name(int val);
1299 extern const char *drm_get_tv_subconnector_name(int val);
1300 extern const char *drm_get_tv_select_name(int val);
1301 extern void drm_fb_release(struct drm_file *file_priv);
1302 extern void drm_property_destroy_user_blobs(struct drm_device *dev,
1303 struct drm_file *file_priv);
1304 extern bool drm_probe_ddc(struct i2c_adapter *adapter);
1305 extern struct edid *drm_get_edid(struct drm_connector *connector,
1306 struct i2c_adapter *adapter);
1307 extern struct edid *drm_edid_duplicate(const struct edid *edid);
1308 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
1309 extern void drm_mode_config_init(struct drm_device *dev);
1310 extern void drm_mode_config_reset(struct drm_device *dev);
1311 extern void drm_mode_config_cleanup(struct drm_device *dev);
1313 extern int drm_mode_connector_set_path_property(struct drm_connector *connector,
1315 int drm_mode_connector_set_tile_property(struct drm_connector *connector);
1316 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
1317 const struct edid *edid);
1319 extern int drm_display_info_set_bus_formats(struct drm_display_info *info,
1321 unsigned int num_formats);
1323 static inline bool drm_property_type_is(struct drm_property *property,
1326 /* instanceof for props.. handles extended type vs original types: */
1327 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1328 return (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) == type;
1329 return property->flags & type;
1332 static inline bool drm_property_type_valid(struct drm_property *property)
1334 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1335 return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1336 return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1339 extern int drm_object_property_set_value(struct drm_mode_object *obj,
1340 struct drm_property *property,
1342 extern int drm_object_property_get_value(struct drm_mode_object *obj,
1343 struct drm_property *property,
1345 extern int drm_framebuffer_init(struct drm_device *dev,
1346 struct drm_framebuffer *fb,
1347 const struct drm_framebuffer_funcs *funcs);
1348 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
1350 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb);
1351 extern void drm_framebuffer_reference(struct drm_framebuffer *fb);
1352 extern void drm_framebuffer_remove(struct drm_framebuffer *fb);
1353 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
1354 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb);
1356 extern void drm_object_attach_property(struct drm_mode_object *obj,
1357 struct drm_property *property,
1359 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1360 const char *name, int num_values);
1361 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
1363 const struct drm_prop_enum_list *props,
1365 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
1366 int flags, const char *name,
1367 const struct drm_prop_enum_list *props,
1369 uint64_t supported_bits);
1370 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
1372 uint64_t min, uint64_t max);
1373 struct drm_property *drm_property_create_signed_range(struct drm_device *dev,
1374 int flags, const char *name,
1375 int64_t min, int64_t max);
1376 struct drm_property *drm_property_create_object(struct drm_device *dev,
1377 int flags, const char *name, uint32_t type);
1378 struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags,
1380 struct drm_property_blob *drm_property_create_blob(struct drm_device *dev,
1383 struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev,
1385 struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob);
1386 void drm_property_unreference_blob(struct drm_property_blob *blob);
1387 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
1388 extern int drm_property_add_enum(struct drm_property *property, int index,
1389 uint64_t value, const char *name);
1390 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
1391 extern int drm_mode_create_tv_properties(struct drm_device *dev,
1392 unsigned int num_modes,
1394 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
1395 extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
1396 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
1397 extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
1398 extern bool drm_property_change_valid_get(struct drm_property *property,
1399 uint64_t value, struct drm_mode_object **ref);
1400 extern void drm_property_change_valid_put(struct drm_property *property,
1401 struct drm_mode_object *ref);
1403 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
1404 struct drm_encoder *encoder);
1405 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
1407 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
1408 uint32_t id, uint32_t type);
1411 extern int drm_mode_getresources(struct drm_device *dev,
1412 void *data, struct drm_file *file_priv);
1413 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
1414 struct drm_file *file_priv);
1415 extern int drm_mode_getcrtc(struct drm_device *dev,
1416 void *data, struct drm_file *file_priv);
1417 extern int drm_mode_getconnector(struct drm_device *dev,
1418 void *data, struct drm_file *file_priv);
1419 extern int drm_mode_set_config_internal(struct drm_mode_set *set);
1420 extern int drm_mode_setcrtc(struct drm_device *dev,
1421 void *data, struct drm_file *file_priv);
1422 extern int drm_mode_getplane(struct drm_device *dev,
1423 void *data, struct drm_file *file_priv);
1424 extern int drm_mode_setplane(struct drm_device *dev,
1425 void *data, struct drm_file *file_priv);
1426 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
1427 void *data, struct drm_file *file_priv);
1428 extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
1429 void *data, struct drm_file *file_priv);
1430 extern int drm_mode_addfb(struct drm_device *dev,
1431 void *data, struct drm_file *file_priv);
1432 extern int drm_mode_addfb2(struct drm_device *dev,
1433 void *data, struct drm_file *file_priv);
1434 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
1435 extern int drm_mode_rmfb(struct drm_device *dev,
1436 void *data, struct drm_file *file_priv);
1437 extern int drm_mode_getfb(struct drm_device *dev,
1438 void *data, struct drm_file *file_priv);
1439 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1440 void *data, struct drm_file *file_priv);
1442 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1443 void *data, struct drm_file *file_priv);
1444 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1445 void *data, struct drm_file *file_priv);
1446 extern int drm_mode_createblob_ioctl(struct drm_device *dev,
1447 void *data, struct drm_file *file_priv);
1448 extern int drm_mode_destroyblob_ioctl(struct drm_device *dev,
1449 void *data, struct drm_file *file_priv);
1450 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1451 void *data, struct drm_file *file_priv);
1452 extern int drm_mode_getencoder(struct drm_device *dev,
1453 void *data, struct drm_file *file_priv);
1454 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1455 void *data, struct drm_file *file_priv);
1456 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1457 void *data, struct drm_file *file_priv);
1458 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
1459 extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
1460 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1461 extern bool drm_detect_monitor_audio(struct edid *edid);
1462 extern bool drm_rgb_quant_range_selectable(struct edid *edid);
1463 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1464 void *data, struct drm_file *file_priv);
1465 extern int drm_add_modes_noedid(struct drm_connector *connector,
1466 int hdisplay, int vdisplay);
1467 extern void drm_set_preferred_mode(struct drm_connector *connector,
1468 int hpref, int vpref);
1470 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1471 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
1472 bool *edid_corrupt);
1473 extern bool drm_edid_is_valid(struct edid *edid);
1475 extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
1477 extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
1479 extern void drm_mode_put_tile_group(struct drm_device *dev,
1480 struct drm_tile_group *tg);
1481 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1482 int hsize, int vsize, int fresh,
1485 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1486 void *data, struct drm_file *file_priv);
1487 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1488 void *data, struct drm_file *file_priv);
1489 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1490 void *data, struct drm_file *file_priv);
1491 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
1492 struct drm_file *file_priv);
1493 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
1494 struct drm_file *file_priv);
1495 extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
1496 struct drm_property *property,
1498 extern int drm_mode_atomic_ioctl(struct drm_device *dev,
1499 void *data, struct drm_file *file_priv);
1501 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1503 extern int drm_format_num_planes(uint32_t format);
1504 extern int drm_format_plane_cpp(uint32_t format, int plane);
1505 extern int drm_format_horz_chroma_subsampling(uint32_t format);
1506 extern int drm_format_vert_chroma_subsampling(uint32_t format);
1507 extern const char *drm_get_format_name(uint32_t format);
1508 extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
1509 unsigned int supported_rotations);
1510 extern unsigned int drm_rotation_simplify(unsigned int rotation,
1511 unsigned int supported_rotations);
1515 static inline struct drm_plane *drm_plane_find(struct drm_device *dev,
1518 struct drm_mode_object *mo;
1519 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE);
1520 return mo ? obj_to_plane(mo) : NULL;
1523 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
1526 struct drm_mode_object *mo;
1527 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC);
1528 return mo ? obj_to_crtc(mo) : NULL;
1531 static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
1534 struct drm_mode_object *mo;
1535 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
1536 return mo ? obj_to_encoder(mo) : NULL;
1539 static inline struct drm_connector *drm_connector_find(struct drm_device *dev,
1542 struct drm_mode_object *mo;
1543 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR);
1544 return mo ? obj_to_connector(mo) : NULL;
1547 static inline struct drm_property *drm_property_find(struct drm_device *dev,
1550 struct drm_mode_object *mo;
1551 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY);
1552 return mo ? obj_to_property(mo) : NULL;
1555 /* Plane list iterator for legacy (overlay only) planes. */
1556 #define drm_for_each_legacy_plane(plane, dev) \
1557 list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \
1558 if (plane->type == DRM_PLANE_TYPE_OVERLAY)
1560 #define drm_for_each_plane(plane, dev) \
1561 list_for_each_entry(plane, &(dev)->mode_config.plane_list, head)
1563 #define drm_for_each_crtc(crtc, dev) \
1564 list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
1567 assert_drm_connector_list_read_locked(struct drm_mode_config *mode_config)
1570 * The connector hotadd/remove code currently grabs both locks when
1571 * updating lists. Hence readers need only hold either of them to be
1572 * safe and the check amounts to
1574 * WARN_ON(not_holding(A) && not_holding(B)).
1576 WARN_ON(!mutex_is_locked(&mode_config->mutex) &&
1577 !drm_modeset_is_locked(&mode_config->connection_mutex));
1580 #define drm_for_each_connector(connector, dev) \
1581 for (assert_drm_connector_list_read_locked(&(dev)->mode_config), \
1582 connector = list_first_entry(&(dev)->mode_config.connector_list, \
1583 struct drm_connector, head); \
1584 &connector->head != (&(dev)->mode_config.connector_list); \
1585 connector = list_next_entry(connector, head))
1587 #define drm_for_each_encoder(encoder, dev) \
1588 list_for_each_entry(encoder, &(dev)->mode_config.encoder_list, head)
1590 #define drm_for_each_fb(fb, dev) \
1591 for (WARN_ON(!mutex_is_locked(&(dev)->mode_config.fb_lock)), \
1592 fb = list_first_entry(&(dev)->mode_config.fb_list, \
1593 struct drm_framebuffer, head); \
1594 &fb->head != (&(dev)->mode_config.fb_list); \
1595 fb = list_next_entry(fb, head))
1597 #endif /* __DRM_CRTC_H__ */