1 | /* |
2 | * Copyright © 2006 Keith Packard |
3 | * Copyright © 2007-2008 Dave Airlie |
4 | * Copyright © 2007-2008 Intel Corporation |
5 | * Jesse Barnes <jesse.barnes@intel.com> |
6 | * |
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: |
13 | * |
14 | * The above copyright notice and this permission notice shall be included in |
15 | * all copies or substantial portions of the Software. |
16 | * |
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. |
24 | */ |
25 | #ifndef __DRM_CRTC_H__ |
26 | #define __DRM_CRTC_H__ |
27 | |
28 | #include <linux/i2c.h> |
29 | #include <linux/spinlock.h> |
30 | #include <linux/types.h> |
31 | #include <linux/idr.h> |
32 | #include <linux/fb.h> |
33 | #include <linux/hdmi.h> |
34 | #include <linux/kref.h> |
35 | #include <linux/mutex.h> |
36 | #include <linux/workqueue.h> |
37 | #include <drm/drm_mode.h> |
38 | #include <drm/drm_fourcc.h> |
39 | |
40 | struct drm_device; |
41 | struct drm_mode_set; |
42 | struct drm_framebuffer; |
43 | struct drm_object_properties; |
44 | struct drm_file; |
45 | struct drm_clip_rect; |
46 | |
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 | |
57 | struct drm_mode_object { |
58 | uint32_t id; |
59 | uint32_t type; |
60 | struct drm_object_properties *properties; |
61 | }; |
62 | |
63 | #define DRM_OBJECT_MAX_PROPERTY 24 |
64 | struct drm_object_properties { |
65 | int count; |
66 | uint32_t ids[DRM_OBJECT_MAX_PROPERTY]; |
67 | uint64_t values[DRM_OBJECT_MAX_PROPERTY]; |
68 | }; |
69 | |
70 | enum drm_connector_force { |
71 | DRM_FORCE_UNSPECIFIED, |
72 | DRM_FORCE_OFF, |
73 | DRM_FORCE_ON, /* force on analog part normally */ |
74 | DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */ |
75 | }; |
76 | |
77 | #include <drm/drm_modes.h> |
78 | |
79 | enum drm_connector_status { |
80 | connector_status_connected = 1, |
81 | connector_status_disconnected = 2, |
82 | connector_status_unknown = 3, |
83 | }; |
84 | |
85 | enum subpixel_order { |
86 | SubPixelUnknown = 0, |
87 | SubPixelHorizontalRGB, |
88 | SubPixelHorizontalBGR, |
89 | SubPixelVerticalRGB, |
90 | SubPixelVerticalBGR, |
91 | SubPixelNone, |
92 | }; |
93 | |
94 | #define DRM_COLOR_FORMAT_RGB444 (1<<0) |
95 | #define DRM_COLOR_FORMAT_YCRCB444 (1<<1) |
96 | #define DRM_COLOR_FORMAT_YCRCB422 (1<<2) |
97 | /* |
98 | * Describes a given display (e.g. CRT or flat panel) and its limitations. |
99 | */ |
100 | struct drm_display_info { |
101 | char name[DRM_DISPLAY_INFO_LEN]; |
102 | |
103 | /* Physical size */ |
104 | unsigned int width_mm; |
105 | unsigned int height_mm; |
106 | |
107 | /* Clock limits FIXME: storage format */ |
108 | unsigned int min_vfreq, max_vfreq; |
109 | unsigned int min_hfreq, max_hfreq; |
110 | unsigned int pixel_clock; |
111 | unsigned int bpc; |
112 | |
113 | enum subpixel_order subpixel_order; |
114 | u32 color_formats; |
115 | |
116 | u8 cea_rev; |
117 | }; |
118 | |
119 | struct drm_framebuffer_funcs { |
120 | /* note: use drm_framebuffer_remove() */ |
121 | void (*destroy)(struct drm_framebuffer *framebuffer); |
122 | int (*create_handle)(struct drm_framebuffer *fb, |
123 | struct drm_file *file_priv, |
124 | unsigned int *handle); |
125 | /** |
126 | * Optinal callback for the dirty fb ioctl. |
127 | * |
128 | * Userspace can notify the driver via this callback |
129 | * that a area of the framebuffer has changed and should |
130 | * be flushed to the display hardware. |
131 | * |
132 | * See documentation in drm_mode.h for the struct |
133 | * drm_mode_fb_dirty_cmd for more information as all |
134 | * the semantics and arguments have a one to one mapping |
135 | * on this function. |
136 | */ |
137 | int (*dirty)(struct drm_framebuffer *framebuffer, |
138 | struct drm_file *file_priv, unsigned flags, |
139 | unsigned color, struct drm_clip_rect *clips, |
140 | unsigned num_clips); |
141 | }; |
142 | |
143 | struct drm_framebuffer { |
144 | struct drm_device *dev; |
145 | /* |
146 | * Note that the fb is refcounted for the benefit of driver internals, |
147 | * for example some hw, disabling a CRTC/plane is asynchronous, and |
148 | * scanout does not actually complete until the next vblank. So some |
149 | * cleanup (like releasing the reference(s) on the backing GEM bo(s)) |
150 | * should be deferred. In cases like this, the driver would like to |
151 | * hold a ref to the fb even though it has already been removed from |
152 | * userspace perspective. |
153 | */ |
154 | struct kref refcount; |
155 | /* |
156 | * Place on the dev->mode_config.fb_list, access protected by |
157 | * dev->mode_config.fb_lock. |
158 | */ |
159 | struct list_head head; |
160 | struct drm_mode_object base; |
161 | const struct drm_framebuffer_funcs *funcs; |
162 | unsigned int pitches[4]; |
163 | unsigned int offsets[4]; |
164 | unsigned int width; |
165 | unsigned int height; |
166 | /* depth can be 15 or 16 */ |
167 | unsigned int depth; |
168 | int bits_per_pixel; |
169 | int flags; |
170 | uint32_t pixel_format; /* fourcc format */ |
171 | struct list_head filp_head; |
172 | /* if you are using the helper */ |
173 | void *helper_private; |
174 | }; |
175 | |
176 | struct drm_property_blob { |
177 | struct drm_mode_object base; |
178 | struct list_head head; |
179 | unsigned int length; |
180 | unsigned char data[]; |
181 | }; |
182 | |
183 | struct drm_property_enum { |
184 | uint64_t value; |
185 | struct list_head head; |
186 | char name[DRM_PROP_NAME_LEN]; |
187 | }; |
188 | |
189 | struct drm_property { |
190 | struct list_head head; |
191 | struct drm_mode_object base; |
192 | uint32_t flags; |
193 | char name[DRM_PROP_NAME_LEN]; |
194 | uint32_t num_values; |
195 | uint64_t *values; |
196 | |
197 | struct list_head enum_blob_list; |
198 | }; |
199 | |
200 | struct drm_crtc; |
201 | struct drm_connector; |
202 | struct drm_encoder; |
203 | struct drm_pending_vblank_event; |
204 | struct drm_plane; |
205 | struct drm_bridge; |
206 | |
207 | /** |
208 | * drm_crtc_funcs - control CRTCs for a given device |
209 | * @save: save CRTC state |
210 | * @restore: restore CRTC state |
211 | * @reset: reset CRTC after state has been invalidated (e.g. resume) |
212 | * @cursor_set: setup the cursor |
213 | * @cursor_move: move the cursor |
214 | * @gamma_set: specify color ramp for CRTC |
215 | * @destroy: deinit and free object |
216 | * @set_property: called when a property is changed |
217 | * @set_config: apply a new CRTC configuration |
218 | * @page_flip: initiate a page flip |
219 | * |
220 | * The drm_crtc_funcs structure is the central CRTC management structure |
221 | * in the DRM. Each CRTC controls one or more connectors (note that the name |
222 | * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc. |
223 | * connectors, not just CRTs). |
224 | * |
225 | * Each driver is responsible for filling out this structure at startup time, |
226 | * in addition to providing other modesetting features, like i2c and DDC |
227 | * bus accessors. |
228 | */ |
229 | struct drm_crtc_funcs { |
230 | /* Save CRTC state */ |
231 | void (*save)(struct drm_crtc *crtc); /* suspend? */ |
232 | /* Restore CRTC state */ |
233 | void (*restore)(struct drm_crtc *crtc); /* resume? */ |
234 | /* Reset CRTC state */ |
235 | void (*reset)(struct drm_crtc *crtc); |
236 | |
237 | /* cursor controls */ |
238 | int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv, |
239 | uint32_t handle, uint32_t width, uint32_t height); |
240 | int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv, |
241 | uint32_t handle, uint32_t width, uint32_t height, |
242 | int32_t hot_x, int32_t hot_y); |
243 | int (*cursor_move)(struct drm_crtc *crtc, int x, int y); |
244 | |
245 | /* Set gamma on the CRTC */ |
246 | void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, |
247 | uint32_t start, uint32_t size); |
248 | /* Object destroy routine */ |
249 | void (*destroy)(struct drm_crtc *crtc); |
250 | |
251 | int (*set_config)(struct drm_mode_set *set); |
252 | |
253 | /* |
254 | * Flip to the given framebuffer. This implements the page |
255 | * flip ioctl described in drm_mode.h, specifically, the |
256 | * implementation must return immediately and block all |
257 | * rendering to the current fb until the flip has completed. |
258 | * If userspace set the event flag in the ioctl, the event |
259 | * argument will point to an event to send back when the flip |
260 | * completes, otherwise it will be NULL. |
261 | */ |
262 | int (*page_flip)(struct drm_crtc *crtc, |
263 | struct drm_framebuffer *fb, |
264 | struct drm_pending_vblank_event *event, |
265 | uint32_t flags); |
266 | |
267 | int (*set_property)(struct drm_crtc *crtc, |
268 | struct drm_property *property, uint64_t val); |
269 | }; |
270 | |
271 | /** |
272 | * drm_crtc - central CRTC control structure |
273 | * @dev: parent DRM device |
274 | * @head: list management |
275 | * @base: base KMS object for ID tracking etc. |
276 | * @primary: primary plane for this CRTC |
277 | * @cursor: cursor plane for this CRTC |
278 | * @enabled: is this CRTC enabled? |
279 | * @mode: current mode timings |
280 | * @hwmode: mode timings as programmed to hw regs |
281 | * @invert_dimensions: for purposes of error checking crtc vs fb sizes, |
282 | * invert the width/height of the crtc. This is used if the driver |
283 | * is performing 90 or 270 degree rotated scanout |
284 | * @x: x position on screen |
285 | * @y: y position on screen |
286 | * @funcs: CRTC control functions |
287 | * @gamma_size: size of gamma ramp |
288 | * @gamma_store: gamma ramp values |
289 | * @framedur_ns: precise frame timing |
290 | * @framedur_ns: precise line timing |
291 | * @pixeldur_ns: precise pixel timing |
292 | * @helper_private: mid-layer private data |
293 | * @properties: property tracking for this CRTC |
294 | * |
295 | * Each CRTC may have one or more connectors associated with it. This structure |
296 | * allows the CRTC to be controlled. |
297 | */ |
298 | struct drm_crtc { |
299 | struct drm_device *dev; |
300 | struct list_head head; |
301 | |
302 | /** |
303 | * crtc mutex |
304 | * |
305 | * This provides a read lock for the overall crtc state (mode, dpms |
306 | * state, ...) and a write lock for everything which can be update |
307 | * without a full modeset (fb, cursor data, ...) |
308 | */ |
309 | struct mutex mutex; |
310 | |
311 | struct drm_mode_object base; |
312 | |
313 | /* primary and cursor planes for CRTC */ |
314 | struct drm_plane *primary; |
315 | struct drm_plane *cursor; |
316 | |
317 | /* Temporary tracking of the old fb while a modeset is ongoing. Used |
318 | * by drm_mode_set_config_internal to implement correct refcounting. */ |
319 | struct drm_framebuffer *old_fb; |
320 | |
321 | bool enabled; |
322 | |
323 | /* Requested mode from modesetting. */ |
324 | struct drm_display_mode mode; |
325 | |
326 | /* Programmed mode in hw, after adjustments for encoders, |
327 | * crtc, panel scaling etc. Needed for timestamping etc. |
328 | */ |
329 | struct drm_display_mode hwmode; |
330 | |
331 | bool invert_dimensions; |
332 | |
333 | int x, y; |
334 | const struct drm_crtc_funcs *funcs; |
335 | |
336 | /* CRTC gamma size for reporting to userspace */ |
337 | uint32_t gamma_size; |
338 | uint16_t *gamma_store; |
339 | |
340 | /* Constants needed for precise vblank and swap timestamping. */ |
341 | int framedur_ns, linedur_ns, pixeldur_ns; |
342 | |
343 | /* if you are using the helper */ |
344 | void *helper_private; |
345 | |
346 | struct drm_object_properties properties; |
347 | }; |
348 | |
349 | |
350 | /** |
351 | * drm_connector_funcs - control connectors on a given device |
352 | * @dpms: set power state (see drm_crtc_funcs above) |
353 | * @save: save connector state |
354 | * @restore: restore connector state |
355 | * @reset: reset connector after state has been invalidated (e.g. resume) |
356 | * @detect: is this connector active? |
357 | * @fill_modes: fill mode list for this connector |
358 | * @set_property: property for this connector may need an update |
359 | * @destroy: make object go away |
360 | * @force: notify the driver that the connector is forced on |
361 | * |
362 | * Each CRTC may have one or more connectors attached to it. The functions |
363 | * below allow the core DRM code to control connectors, enumerate available modes, |
364 | * etc. |
365 | */ |
366 | struct drm_connector_funcs { |
367 | void (*dpms)(struct drm_connector *connector, int mode); |
368 | void (*save)(struct drm_connector *connector); |
369 | void (*restore)(struct drm_connector *connector); |
370 | void (*reset)(struct drm_connector *connector); |
371 | |
372 | /* Check to see if anything is attached to the connector. |
373 | * @force is set to false whilst polling, true when checking the |
374 | * connector due to user request. @force can be used by the driver |
375 | * to avoid expensive, destructive operations during automated |
376 | * probing. |
377 | */ |
378 | enum drm_connector_status (*detect)(struct drm_connector *connector, |
379 | bool force); |
380 | int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height); |
381 | int (*set_property)(struct drm_connector *connector, struct drm_property *property, |
382 | uint64_t val); |
383 | void (*destroy)(struct drm_connector *connector); |
384 | void (*force)(struct drm_connector *connector); |
385 | }; |
386 | |
387 | /** |
388 | * drm_encoder_funcs - encoder controls |
389 | * @reset: reset state (e.g. at init or resume time) |
390 | * @destroy: cleanup and free associated data |
391 | * |
392 | * Encoders sit between CRTCs and connectors. |
393 | */ |
394 | struct drm_encoder_funcs { |
395 | void (*reset)(struct drm_encoder *encoder); |
396 | void (*destroy)(struct drm_encoder *encoder); |
397 | }; |
398 | |
399 | #define DRM_CONNECTOR_MAX_ENCODER 3 |
400 | |
401 | /** |
402 | * drm_encoder - central DRM encoder structure |
403 | * @dev: parent DRM device |
404 | * @head: list management |
405 | * @base: base KMS object |
406 | * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h |
407 | * @possible_crtcs: bitmask of potential CRTC bindings |
408 | * @possible_clones: bitmask of potential sibling encoders for cloning |
409 | * @crtc: currently bound CRTC |
410 | * @bridge: bridge associated to the encoder |
411 | * @funcs: control functions |
412 | * @helper_private: mid-layer private data |
413 | * |
414 | * CRTCs drive pixels to encoders, which convert them into signals |
415 | * appropriate for a given connector or set of connectors. |
416 | */ |
417 | struct drm_encoder { |
418 | struct drm_device *dev; |
419 | struct list_head head; |
420 | |
421 | struct drm_mode_object base; |
422 | int encoder_type; |
423 | uint32_t possible_crtcs; |
424 | uint32_t possible_clones; |
425 | |
426 | struct drm_crtc *crtc; |
427 | struct drm_bridge *bridge; |
428 | const struct drm_encoder_funcs *funcs; |
429 | void *helper_private; |
430 | }; |
431 | |
432 | /* should we poll this connector for connects and disconnects */ |
433 | /* hot plug detectable */ |
434 | #define DRM_CONNECTOR_POLL_HPD (1 << 0) |
435 | /* poll for connections */ |
436 | #define DRM_CONNECTOR_POLL_CONNECT (1 << 1) |
437 | /* can cleanly poll for disconnections without flickering the screen */ |
438 | /* DACs should rarely do this without a lot of testing */ |
439 | #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2) |
440 | |
441 | #define MAX_ELD_BYTES 128 |
442 | |
443 | /** |
444 | * drm_connector - central DRM connector control structure |
445 | * @dev: parent DRM device |
446 | * @kdev: kernel device for sysfs attributes |
447 | * @attr: sysfs attributes |
448 | * @head: list management |
449 | * @base: base KMS object |
450 | * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h |
451 | * @connector_type_id: index into connector type enum |
452 | * @interlace_allowed: can this connector handle interlaced modes? |
453 | * @doublescan_allowed: can this connector handle doublescan? |
454 | * @modes: modes available on this connector (from fill_modes() + user) |
455 | * @status: one of the drm_connector_status enums (connected, not, or unknown) |
456 | * @probed_modes: list of modes derived directly from the display |
457 | * @display_info: information about attached display (e.g. from EDID) |
458 | * @funcs: connector control functions |
459 | * @edid_blob_ptr: DRM property containing EDID if present |
460 | * @properties: property tracking for this connector |
461 | * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling |
462 | * @dpms: current dpms state |
463 | * @helper_private: mid-layer private data |
464 | * @force: a %DRM_FORCE_<foo> state for forced mode sets |
465 | * @encoder_ids: valid encoders for this connector |
466 | * @encoder: encoder driving this connector, if any |
467 | * @physical_address: HDMI physical address |
468 | * @eld: EDID-like data, if present |
469 | * @dvi_dual: dual link DVI, if found |
470 | * @max_tmds_clock: max clock rate, if found |
471 | * @latency_present: AV delay info from ELD, if found |
472 | * @video_latency: video latency info from ELD, if found |
473 | * @audio_latency: audio latency info from ELD, if found |
474 | * @null_edid_counter: track sinks that give us all zeros for the EDID |
475 | * |
476 | * Each connector may be connected to one or more CRTCs, or may be clonable by |
477 | * another connector if they can share a CRTC. Each connector also has a specific |
478 | * position in the broader display (referred to as a 'screen' though it could |
479 | * span multiple monitors). |
480 | */ |
481 | struct drm_connector { |
482 | struct drm_device *dev; |
483 | struct device *kdev; |
484 | struct device_attribute *attr; |
485 | struct list_head head; |
486 | |
487 | struct drm_mode_object base; |
488 | |
489 | int connector_type; |
490 | int connector_type_id; |
491 | bool interlace_allowed; |
492 | bool doublescan_allowed; |
493 | bool stereo_allowed; |
494 | struct list_head modes; /* list of modes on this connector */ |
495 | |
496 | enum drm_connector_status status; |
497 | |
498 | /* these are modes added by probing with DDC or the BIOS */ |
499 | struct list_head probed_modes; |
500 | |
501 | struct drm_display_info display_info; |
502 | const struct drm_connector_funcs *funcs; |
503 | |
504 | struct drm_property_blob *edid_blob_ptr; |
505 | struct drm_object_properties properties; |
506 | |
507 | uint8_t polled; /* DRM_CONNECTOR_POLL_* */ |
508 | |
509 | /* requested DPMS state */ |
510 | int dpms; |
511 | |
512 | void *helper_private; |
513 | |
514 | /* forced on connector */ |
515 | enum drm_connector_force force; |
516 | uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER]; |
517 | struct drm_encoder *encoder; /* currently active encoder */ |
518 | |
519 | /* EDID bits */ |
520 | uint16_t physical_address; |
521 | uint8_t eld[MAX_ELD_BYTES]; |
522 | bool dvi_dual; |
523 | int max_tmds_clock; /* in MHz */ |
524 | bool latency_present[2]; |
525 | int video_latency[2]; /* [0]: progressive, [1]: interlaced */ |
526 | int audio_latency[2]; |
527 | int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */ |
528 | unsigned bad_edid_counter; |
529 | }; |
530 | |
531 | /** |
532 | * drm_plane_funcs - driver plane control functions |
533 | * @update_plane: update the plane configuration |
534 | * @disable_plane: shut down the plane |
535 | * @destroy: clean up plane resources |
536 | * @set_property: called when a property is changed |
537 | */ |
538 | struct drm_plane_funcs { |
539 | int (*update_plane)(struct drm_plane *plane, |
540 | struct drm_crtc *crtc, struct drm_framebuffer *fb, |
541 | int crtc_x, int crtc_y, |
542 | unsigned int crtc_w, unsigned int crtc_h, |
543 | uint32_t src_x, uint32_t src_y, |
544 | uint32_t src_w, uint32_t src_h); |
545 | int (*disable_plane)(struct drm_plane *plane); |
546 | void (*destroy)(struct drm_plane *plane); |
547 | |
548 | int (*set_property)(struct drm_plane *plane, |
549 | struct drm_property *property, uint64_t val); |
550 | }; |
551 | |
552 | enum drm_plane_type { |
553 | DRM_PLANE_TYPE_OVERLAY, |
554 | DRM_PLANE_TYPE_PRIMARY, |
555 | DRM_PLANE_TYPE_CURSOR, |
556 | }; |
557 | |
558 | /** |
559 | * drm_plane - central DRM plane control structure |
560 | * @dev: DRM device this plane belongs to |
561 | * @head: for list management |
562 | * @base: base mode object |
563 | * @possible_crtcs: pipes this plane can be bound to |
564 | * @format_types: array of formats supported by this plane |
565 | * @format_count: number of formats supported |
566 | * @crtc: currently bound CRTC |
567 | * @fb: currently bound fb |
568 | * @funcs: helper functions |
569 | * @properties: property tracking for this plane |
570 | * @type: type of plane (overlay, primary, cursor) |
571 | */ |
572 | struct drm_plane { |
573 | struct drm_device *dev; |
574 | struct list_head head; |
575 | |
576 | struct drm_mode_object base; |
577 | |
578 | uint32_t possible_crtcs; |
579 | uint32_t *format_types; |
580 | uint32_t format_count; |
581 | |
582 | struct drm_crtc *crtc; |
583 | struct drm_framebuffer *fb; |
584 | |
585 | const struct drm_plane_funcs *funcs; |
586 | |
587 | struct drm_object_properties properties; |
588 | |
589 | enum drm_plane_type type; |
590 | }; |
591 | |
592 | /** |
593 | * drm_bridge_funcs - drm_bridge control functions |
594 | * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge |
595 | * @disable: Called right before encoder prepare, disables the bridge |
596 | * @post_disable: Called right after encoder prepare, for lockstepped disable |
597 | * @mode_set: Set this mode to the bridge |
598 | * @pre_enable: Called right before encoder commit, for lockstepped commit |
599 | * @enable: Called right after encoder commit, enables the bridge |
600 | * @destroy: make object go away |
601 | */ |
602 | struct drm_bridge_funcs { |
603 | bool (*mode_fixup)(struct drm_bridge *bridge, |
604 | const struct drm_display_mode *mode, |
605 | struct drm_display_mode *adjusted_mode); |
606 | void (*disable)(struct drm_bridge *bridge); |
607 | void (*post_disable)(struct drm_bridge *bridge); |
608 | void (*mode_set)(struct drm_bridge *bridge, |
609 | struct drm_display_mode *mode, |
610 | struct drm_display_mode *adjusted_mode); |
611 | void (*pre_enable)(struct drm_bridge *bridge); |
612 | void (*enable)(struct drm_bridge *bridge); |
613 | void (*destroy)(struct drm_bridge *bridge); |
614 | }; |
615 | |
616 | /** |
617 | * drm_bridge - central DRM bridge control structure |
618 | * @dev: DRM device this bridge belongs to |
619 | * @head: list management |
620 | * @base: base mode object |
621 | * @funcs: control functions |
622 | * @driver_private: pointer to the bridge driver's internal context |
623 | */ |
624 | struct drm_bridge { |
625 | struct drm_device *dev; |
626 | struct list_head head; |
627 | |
628 | struct drm_mode_object base; |
629 | |
630 | const struct drm_bridge_funcs *funcs; |
631 | void *driver_private; |
632 | }; |
633 | |
634 | /** |
635 | * drm_mode_set - new values for a CRTC config change |
636 | * @head: list management |
637 | * @fb: framebuffer to use for new config |
638 | * @crtc: CRTC whose configuration we're about to change |
639 | * @mode: mode timings to use |
640 | * @x: position of this CRTC relative to @fb |
641 | * @y: position of this CRTC relative to @fb |
642 | * @connectors: array of connectors to drive with this CRTC if possible |
643 | * @num_connectors: size of @connectors array |
644 | * |
645 | * Represents a single crtc the connectors that it drives with what mode |
646 | * and from which framebuffer it scans out from. |
647 | * |
648 | * This is used to set modes. |
649 | */ |
650 | struct drm_mode_set { |
651 | struct drm_framebuffer *fb; |
652 | struct drm_crtc *crtc; |
653 | struct drm_display_mode *mode; |
654 | |
655 | uint32_t x; |
656 | uint32_t y; |
657 | |
658 | struct drm_connector **connectors; |
659 | size_t num_connectors; |
660 | }; |
661 | |
662 | /** |
663 | * struct drm_mode_config_funcs - basic driver provided mode setting functions |
664 | * @fb_create: create a new framebuffer object |
665 | * @output_poll_changed: function to handle output configuration changes |
666 | * |
667 | * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that |
668 | * involve drivers. |
669 | */ |
670 | struct drm_mode_config_funcs { |
671 | struct drm_framebuffer *(*fb_create)(struct drm_device *dev, |
672 | struct drm_file *file_priv, |
673 | struct drm_mode_fb_cmd2 *mode_cmd); |
674 | void (*output_poll_changed)(struct drm_device *dev); |
675 | }; |
676 | |
677 | /** |
678 | * drm_mode_group - group of mode setting resources for potential sub-grouping |
679 | * @num_crtcs: CRTC count |
680 | * @num_encoders: encoder count |
681 | * @num_connectors: connector count |
682 | * @id_list: list of KMS object IDs in this group |
683 | * |
684 | * Currently this simply tracks the global mode setting state. But in the |
685 | * future it could allow groups of objects to be set aside into independent |
686 | * control groups for use by different user level processes (e.g. two X servers |
687 | * running simultaneously on different heads, each with their own mode |
688 | * configuration and freedom of mode setting). |
689 | */ |
690 | struct drm_mode_group { |
691 | uint32_t num_crtcs; |
692 | uint32_t num_encoders; |
693 | uint32_t num_connectors; |
694 | uint32_t num_bridges; |
695 | |
696 | /* list of object IDs for this group */ |
697 | uint32_t *id_list; |
698 | }; |
699 | |
700 | /** |
701 | * drm_mode_config - Mode configuration control structure |
702 | * @mutex: mutex protecting KMS related lists and structures |
703 | * @idr_mutex: mutex for KMS ID allocation and management |
704 | * @crtc_idr: main KMS ID tracking object |
705 | * @num_fb: number of fbs available |
706 | * @fb_list: list of framebuffers available |
707 | * @num_connector: number of connectors on this device |
708 | * @connector_list: list of connector objects |
709 | * @num_bridge: number of bridges on this device |
710 | * @bridge_list: list of bridge objects |
711 | * @num_encoder: number of encoders on this device |
712 | * @encoder_list: list of encoder objects |
713 | * @num_crtc: number of CRTCs on this device |
714 | * @crtc_list: list of CRTC objects |
715 | * @min_width: minimum pixel width on this device |
716 | * @min_height: minimum pixel height on this device |
717 | * @max_width: maximum pixel width on this device |
718 | * @max_height: maximum pixel height on this device |
719 | * @funcs: core driver provided mode setting functions |
720 | * @fb_base: base address of the framebuffer |
721 | * @poll_enabled: track polling status for this device |
722 | * @output_poll_work: delayed work for polling in process context |
723 | * @*_property: core property tracking |
724 | * |
725 | * Core mode resource tracking structure. All CRTC, encoders, and connectors |
726 | * enumerated by the driver are added here, as are global properties. Some |
727 | * global restrictions are also here, e.g. dimension restrictions. |
728 | */ |
729 | struct drm_mode_config { |
730 | struct mutex mutex; /* protects configuration (mode lists etc.) */ |
731 | struct mutex idr_mutex; /* for IDR management */ |
732 | struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ |
733 | /* this is limited to one for now */ |
734 | |
735 | |
736 | /** |
737 | * fb_lock - mutex to protect fb state |
738 | * |
739 | * Besides the global fb list his also protects the fbs list in the |
740 | * file_priv |
741 | */ |
742 | struct mutex fb_lock; |
743 | int num_fb; |
744 | struct list_head fb_list; |
745 | |
746 | int num_connector; |
747 | struct list_head connector_list; |
748 | int num_bridge; |
749 | struct list_head bridge_list; |
750 | int num_encoder; |
751 | struct list_head encoder_list; |
752 | |
753 | /* |
754 | * Track # of overlay planes separately from # of total planes. By |
755 | * default we only advertise overlay planes to userspace; if userspace |
756 | * sets the "universal plane" capability bit, we'll go ahead and |
757 | * expose all planes. |
758 | */ |
759 | int num_overlay_plane; |
760 | int num_total_plane; |
761 | struct list_head plane_list; |
762 | |
763 | int num_crtc; |
764 | struct list_head crtc_list; |
765 | |
766 | struct list_head property_list; |
767 | |
768 | int min_width, min_height; |
769 | int max_width, max_height; |
770 | const struct drm_mode_config_funcs *funcs; |
771 | resource_size_t fb_base; |
772 | |
773 | /* output poll support */ |
774 | bool poll_enabled; |
775 | bool poll_running; |
776 | struct delayed_work output_poll_work; |
777 | |
778 | /* pointers to standard properties */ |
779 | struct list_head property_blob_list; |
780 | struct drm_property *edid_property; |
781 | struct drm_property *dpms_property; |
782 | struct drm_property *plane_type_property; |
783 | |
784 | /* DVI-I properties */ |
785 | struct drm_property *dvi_i_subconnector_property; |
786 | struct drm_property *dvi_i_select_subconnector_property; |
787 | |
788 | /* TV properties */ |
789 | struct drm_property *tv_subconnector_property; |
790 | struct drm_property *tv_select_subconnector_property; |
791 | struct drm_property *tv_mode_property; |
792 | struct drm_property *tv_left_margin_property; |
793 | struct drm_property *tv_right_margin_property; |
794 | struct drm_property *tv_top_margin_property; |
795 | struct drm_property *tv_bottom_margin_property; |
796 | struct drm_property *tv_brightness_property; |
797 | struct drm_property *tv_contrast_property; |
798 | struct drm_property *tv_flicker_reduction_property; |
799 | struct drm_property *tv_overscan_property; |
800 | struct drm_property *tv_saturation_property; |
801 | struct drm_property *tv_hue_property; |
802 | |
803 | /* Optional properties */ |
804 | struct drm_property *scaling_mode_property; |
805 | struct drm_property *dirty_info_property; |
806 | |
807 | /* dumb ioctl parameters */ |
808 | uint32_t preferred_depth, prefer_shadow; |
809 | |
810 | /* whether async page flip is supported or not */ |
811 | bool async_page_flip; |
812 | |
813 | /* cursor size */ |
814 | uint32_t cursor_width, cursor_height; |
815 | }; |
816 | |
817 | #define obj_to_crtc(x) container_of(x, struct drm_crtc, base) |
818 | #define obj_to_connector(x) container_of(x, struct drm_connector, base) |
819 | #define obj_to_encoder(x) container_of(x, struct drm_encoder, base) |
820 | #define obj_to_mode(x) container_of(x, struct drm_display_mode, base) |
821 | #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base) |
822 | #define obj_to_property(x) container_of(x, struct drm_property, base) |
823 | #define obj_to_blob(x) container_of(x, struct drm_property_blob, base) |
824 | #define obj_to_plane(x) container_of(x, struct drm_plane, base) |
825 | |
826 | struct drm_prop_enum_list { |
827 | int type; |
828 | const char *name; |
829 | }; |
830 | |
831 | extern void drm_modeset_lock_all(struct drm_device *dev); |
832 | extern void drm_modeset_unlock_all(struct drm_device *dev); |
833 | extern void drm_warn_on_modeset_not_all_locked(struct drm_device *dev); |
834 | |
835 | extern int drm_crtc_init_with_planes(struct drm_device *dev, |
836 | struct drm_crtc *crtc, |
837 | struct drm_plane *primary, |
838 | void *cursor, |
839 | const struct drm_crtc_funcs *funcs); |
840 | extern int drm_crtc_init(struct drm_device *dev, |
841 | struct drm_crtc *crtc, |
842 | const struct drm_crtc_funcs *funcs); |
843 | extern void drm_crtc_cleanup(struct drm_crtc *crtc); |
844 | extern unsigned int drm_crtc_index(struct drm_crtc *crtc); |
845 | |
846 | /** |
847 | * drm_crtc_mask - find the mask of a registered CRTC |
848 | * @crtc: CRTC to find mask for |
849 | * |
850 | * Given a registered CRTC, return the mask bit of that CRTC for an |
851 | * encoder's possible_crtcs field. |
852 | */ |
853 | static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc) |
854 | { |
855 | return 1 << drm_crtc_index(crtc); |
856 | } |
857 | |
858 | extern void drm_connector_ida_init(void); |
859 | extern void drm_connector_ida_destroy(void); |
860 | extern int drm_connector_init(struct drm_device *dev, |
861 | struct drm_connector *connector, |
862 | const struct drm_connector_funcs *funcs, |
863 | int connector_type); |
864 | |
865 | extern void drm_connector_cleanup(struct drm_connector *connector); |
866 | /* helper to unplug all connectors from sysfs for device */ |
867 | extern void drm_connector_unplug_all(struct drm_device *dev); |
868 | |
869 | extern int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge, |
870 | const struct drm_bridge_funcs *funcs); |
871 | extern void drm_bridge_cleanup(struct drm_bridge *bridge); |
872 | |
873 | extern int drm_encoder_init(struct drm_device *dev, |
874 | struct drm_encoder *encoder, |
875 | const struct drm_encoder_funcs *funcs, |
876 | int encoder_type); |
877 | |
878 | /** |
879 | * drm_encoder_crtc_ok - can a given crtc drive a given encoder? |
880 | * @encoder: encoder to test |
881 | * @crtc: crtc to test |
882 | * |
883 | * Return false if @encoder can't be driven by @crtc, true otherwise. |
884 | */ |
885 | static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder, |
886 | struct drm_crtc *crtc) |
887 | { |
888 | return !!(encoder->possible_crtcs & drm_crtc_mask(crtc)); |
889 | } |
890 | |
891 | extern int drm_universal_plane_init(struct drm_device *dev, |
892 | struct drm_plane *plane, |
893 | unsigned long possible_crtcs, |
894 | const struct drm_plane_funcs *funcs, |
895 | const uint32_t *formats, |
896 | uint32_t format_count, |
897 | enum drm_plane_type type); |
898 | extern int drm_plane_init(struct drm_device *dev, |
899 | struct drm_plane *plane, |
900 | unsigned long possible_crtcs, |
901 | const struct drm_plane_funcs *funcs, |
902 | const uint32_t *formats, uint32_t format_count, |
903 | bool is_primary); |
904 | extern void drm_plane_cleanup(struct drm_plane *plane); |
905 | extern void drm_plane_force_disable(struct drm_plane *plane); |
906 | extern int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
907 | int x, int y, |
908 | const struct drm_display_mode *mode, |
909 | const struct drm_framebuffer *fb); |
910 | |
911 | extern void drm_encoder_cleanup(struct drm_encoder *encoder); |
912 | |
913 | extern const char *drm_get_connector_name(const struct drm_connector *connector); |
914 | extern const char *drm_get_connector_status_name(enum drm_connector_status status); |
915 | extern const char *drm_get_subpixel_order_name(enum subpixel_order order); |
916 | extern const char *drm_get_dpms_name(int val); |
917 | extern const char *drm_get_dvi_i_subconnector_name(int val); |
918 | extern const char *drm_get_dvi_i_select_name(int val); |
919 | extern const char *drm_get_tv_subconnector_name(int val); |
920 | extern const char *drm_get_tv_select_name(int val); |
921 | extern void drm_fb_release(struct drm_file *file_priv); |
922 | extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group); |
923 | extern bool drm_probe_ddc(struct i2c_adapter *adapter); |
924 | extern struct edid *drm_get_edid(struct drm_connector *connector, |
925 | struct i2c_adapter *adapter); |
926 | extern struct edid *drm_edid_duplicate(const struct edid *edid); |
927 | extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid); |
928 | extern void drm_mode_config_init(struct drm_device *dev); |
929 | extern void drm_mode_config_reset(struct drm_device *dev); |
930 | extern void drm_mode_config_cleanup(struct drm_device *dev); |
931 | |
932 | extern int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
933 | struct edid *edid); |
934 | extern int drm_object_property_set_value(struct drm_mode_object *obj, |
935 | struct drm_property *property, |
936 | uint64_t val); |
937 | extern int drm_object_property_get_value(struct drm_mode_object *obj, |
938 | struct drm_property *property, |
939 | uint64_t *value); |
940 | extern int drm_framebuffer_init(struct drm_device *dev, |
941 | struct drm_framebuffer *fb, |
942 | const struct drm_framebuffer_funcs *funcs); |
943 | extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, |
944 | uint32_t id); |
945 | extern void drm_framebuffer_unreference(struct drm_framebuffer *fb); |
946 | extern void drm_framebuffer_reference(struct drm_framebuffer *fb); |
947 | extern void drm_framebuffer_remove(struct drm_framebuffer *fb); |
948 | extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb); |
949 | extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb); |
950 | |
951 | extern void drm_object_attach_property(struct drm_mode_object *obj, |
952 | struct drm_property *property, |
953 | uint64_t init_val); |
954 | extern struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
955 | const char *name, int num_values); |
956 | extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
957 | const char *name, |
958 | const struct drm_prop_enum_list *props, |
959 | int num_values); |
960 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
961 | int flags, const char *name, |
962 | const struct drm_prop_enum_list *props, |
963 | int num_values); |
964 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
965 | const char *name, |
966 | uint64_t min, uint64_t max); |
967 | extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property); |
968 | extern int drm_property_add_enum(struct drm_property *property, int index, |
969 | uint64_t value, const char *name); |
970 | extern int drm_mode_create_dvi_i_properties(struct drm_device *dev); |
971 | extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats, |
972 | const char *formats[]); |
973 | extern int drm_mode_create_scaling_mode_property(struct drm_device *dev); |
974 | extern int drm_mode_create_dirty_info_property(struct drm_device *dev); |
975 | extern const char *drm_get_encoder_name(const struct drm_encoder *encoder); |
976 | |
977 | extern int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
978 | struct drm_encoder *encoder); |
979 | extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
980 | int gamma_size); |
981 | extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
982 | uint32_t id, uint32_t type); |
983 | /* IOCTLs */ |
984 | extern int drm_mode_getresources(struct drm_device *dev, |
985 | void *data, struct drm_file *file_priv); |
986 | extern int drm_mode_getplane_res(struct drm_device *dev, void *data, |
987 | struct drm_file *file_priv); |
988 | extern int drm_mode_getcrtc(struct drm_device *dev, |
989 | void *data, struct drm_file *file_priv); |
990 | extern int drm_mode_getconnector(struct drm_device *dev, |
991 | void *data, struct drm_file *file_priv); |
992 | extern int drm_mode_set_config_internal(struct drm_mode_set *set); |
993 | extern int drm_mode_setcrtc(struct drm_device *dev, |
994 | void *data, struct drm_file *file_priv); |
995 | extern int drm_mode_getplane(struct drm_device *dev, |
996 | void *data, struct drm_file *file_priv); |
997 | extern int drm_mode_setplane(struct drm_device *dev, |
998 | void *data, struct drm_file *file_priv); |
999 | extern int drm_mode_cursor_ioctl(struct drm_device *dev, |
1000 | void *data, struct drm_file *file_priv); |
1001 | extern int drm_mode_cursor2_ioctl(struct drm_device *dev, |
1002 | void *data, struct drm_file *file_priv); |
1003 | extern int drm_mode_addfb(struct drm_device *dev, |
1004 | void *data, struct drm_file *file_priv); |
1005 | extern int drm_mode_addfb2(struct drm_device *dev, |
1006 | void *data, struct drm_file *file_priv); |
1007 | extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); |
1008 | extern int drm_mode_rmfb(struct drm_device *dev, |
1009 | void *data, struct drm_file *file_priv); |
1010 | extern int drm_mode_getfb(struct drm_device *dev, |
1011 | void *data, struct drm_file *file_priv); |
1012 | extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
1013 | void *data, struct drm_file *file_priv); |
1014 | |
1015 | extern int drm_mode_getproperty_ioctl(struct drm_device *dev, |
1016 | void *data, struct drm_file *file_priv); |
1017 | extern int drm_mode_getblob_ioctl(struct drm_device *dev, |
1018 | void *data, struct drm_file *file_priv); |
1019 | extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
1020 | void *data, struct drm_file *file_priv); |
1021 | extern int drm_mode_getencoder(struct drm_device *dev, |
1022 | void *data, struct drm_file *file_priv); |
1023 | extern int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
1024 | void *data, struct drm_file *file_priv); |
1025 | extern int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
1026 | void *data, struct drm_file *file_priv); |
1027 | extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match); |
1028 | extern bool drm_detect_hdmi_monitor(struct edid *edid); |
1029 | extern bool drm_detect_monitor_audio(struct edid *edid); |
1030 | extern bool drm_rgb_quant_range_selectable(struct edid *edid); |
1031 | extern int drm_mode_page_flip_ioctl(struct drm_device *dev, |
1032 | void *data, struct drm_file *file_priv); |
1033 | extern int drm_add_modes_noedid(struct drm_connector *connector, |
1034 | int hdisplay, int vdisplay); |
1035 | extern void drm_set_preferred_mode(struct drm_connector *connector, |
1036 | int hpref, int vpref); |
1037 | |
1038 | extern int (const u8 *raw_edid); |
1039 | extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid); |
1040 | extern bool drm_edid_is_valid(struct edid *edid); |
1041 | struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, |
1042 | int hsize, int vsize, int fresh, |
1043 | bool rb); |
1044 | |
1045 | extern int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
1046 | void *data, struct drm_file *file_priv); |
1047 | extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
1048 | void *data, struct drm_file *file_priv); |
1049 | extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
1050 | void *data, struct drm_file *file_priv); |
1051 | extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
1052 | struct drm_file *file_priv); |
1053 | extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
1054 | struct drm_file *file_priv); |
1055 | |
1056 | extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, |
1057 | int *bpp); |
1058 | extern int drm_format_num_planes(uint32_t format); |
1059 | extern int drm_format_plane_cpp(uint32_t format, int plane); |
1060 | extern int drm_format_horz_chroma_subsampling(uint32_t format); |
1061 | extern int drm_format_vert_chroma_subsampling(uint32_t format); |
1062 | extern const char *drm_get_format_name(uint32_t format); |
1063 | |
1064 | /* Helpers */ |
1065 | static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev, |
1066 | uint32_t id) |
1067 | { |
1068 | struct drm_mode_object *mo; |
1069 | mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC); |
1070 | return mo ? obj_to_crtc(mo) : NULL; |
1071 | } |
1072 | |
1073 | static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev, |
1074 | uint32_t id) |
1075 | { |
1076 | struct drm_mode_object *mo; |
1077 | mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER); |
1078 | return mo ? obj_to_encoder(mo) : NULL; |
1079 | } |
1080 | |
1081 | /* Plane list iterator for legacy (overlay only) planes. */ |
1082 | #define drm_for_each_legacy_plane(plane, planelist) \ |
1083 | list_for_each_entry(plane, planelist, head) \ |
1084 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
1085 | |
1086 | #endif /* __DRM_CRTC_H__ */ |
1087 | |