xref: /dragonfly/sys/dev/drm/include/uapi/drm/drm_mode.h (revision 9317c2d0)
1 /*
2  * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
3  * Copyright (c) 2007 Jakob Bornecrantz <wallbraker@gmail.com>
4  * Copyright (c) 2008 Red Hat Inc.
5  * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
6  * Copyright (c) 2007-2008 Intel Corporation
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a
9  * copy of this software and associated documentation files (the "Software"),
10  * to deal in the Software without restriction, including without limitation
11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12  * and/or sell copies of the Software, and to permit persons to whom the
13  * Software is furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24  * IN THE SOFTWARE.
25  */
26 
27 #ifndef _DRM_MODE_H
28 #define _DRM_MODE_H
29 
30 #include "drm.h"
31 
32 #if defined(__cplusplus)
33 extern "C" {
34 #endif
35 
36 #define DRM_DISPLAY_INFO_LEN	32
37 #define DRM_CONNECTOR_NAME_LEN	32
38 #define DRM_DISPLAY_MODE_LEN	32
39 #define DRM_PROP_NAME_LEN	32
40 
41 #define DRM_MODE_TYPE_BUILTIN	(1<<0)
42 #define DRM_MODE_TYPE_CLOCK_C	((1<<1) | DRM_MODE_TYPE_BUILTIN)
43 #define DRM_MODE_TYPE_CRTC_C	((1<<2) | DRM_MODE_TYPE_BUILTIN)
44 #define DRM_MODE_TYPE_PREFERRED	(1<<3)
45 #define DRM_MODE_TYPE_DEFAULT	(1<<4)
46 #define DRM_MODE_TYPE_USERDEF	(1<<5)
47 #define DRM_MODE_TYPE_DRIVER	(1<<6)
48 
49 /* Video mode flags */
50 /* bit compatible with the xrandr RR_ definitions (bits 0-13)
51  *
52  * ABI warning: Existing userspace really expects
53  * the mode flags to match the xrandr definitions. Any
54  * changes that don't match the xrandr definitions will
55  * likely need a new client cap or some other mechanism
56  * to avoid breaking existing userspace. This includes
57  * allocating new flags in the previously unused bits!
58  */
59 #define DRM_MODE_FLAG_PHSYNC			(1<<0)
60 #define DRM_MODE_FLAG_NHSYNC			(1<<1)
61 #define DRM_MODE_FLAG_PVSYNC			(1<<2)
62 #define DRM_MODE_FLAG_NVSYNC			(1<<3)
63 #define DRM_MODE_FLAG_INTERLACE			(1<<4)
64 #define DRM_MODE_FLAG_DBLSCAN			(1<<5)
65 #define DRM_MODE_FLAG_CSYNC			(1<<6)
66 #define DRM_MODE_FLAG_PCSYNC			(1<<7)
67 #define DRM_MODE_FLAG_NCSYNC			(1<<8)
68 #define DRM_MODE_FLAG_HSKEW			(1<<9) /* hskew provided */
69 #define DRM_MODE_FLAG_BCAST			(1<<10)
70 #define DRM_MODE_FLAG_PIXMUX			(1<<11)
71 #define DRM_MODE_FLAG_DBLCLK			(1<<12)
72 #define DRM_MODE_FLAG_CLKDIV2			(1<<13)
73  /*
74   * When adding a new stereo mode don't forget to adjust DRM_MODE_FLAGS_3D_MAX
75   * (define not exposed to user space).
76   */
77 #define DRM_MODE_FLAG_3D_MASK			(0x1f<<14)
78 #define  DRM_MODE_FLAG_3D_NONE			(0<<14)
79 #define  DRM_MODE_FLAG_3D_FRAME_PACKING		(1<<14)
80 #define  DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE	(2<<14)
81 #define  DRM_MODE_FLAG_3D_LINE_ALTERNATIVE	(3<<14)
82 #define  DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL	(4<<14)
83 #define  DRM_MODE_FLAG_3D_L_DEPTH		(5<<14)
84 #define  DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH	(6<<14)
85 #define  DRM_MODE_FLAG_3D_TOP_AND_BOTTOM	(7<<14)
86 #define  DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF	(8<<14)
87 
88 /* Picture aspect ratio options */
89 #define DRM_MODE_PICTURE_ASPECT_NONE		0
90 #define DRM_MODE_PICTURE_ASPECT_4_3		1
91 #define DRM_MODE_PICTURE_ASPECT_16_9		2
92 
93 /* Aspect ratio flag bitmask (4 bits 22:19) */
94 #define DRM_MODE_FLAG_PIC_AR_MASK		(0x0F<<19)
95 #define  DRM_MODE_FLAG_PIC_AR_NONE \
96 			(DRM_MODE_PICTURE_ASPECT_NONE<<19)
97 #define  DRM_MODE_FLAG_PIC_AR_4_3 \
98 			(DRM_MODE_PICTURE_ASPECT_4_3<<19)
99 #define  DRM_MODE_FLAG_PIC_AR_16_9 \
100 			(DRM_MODE_PICTURE_ASPECT_16_9<<19)
101 
102 /* DPMS flags */
103 /* bit compatible with the xorg definitions. */
104 #define DRM_MODE_DPMS_ON	0
105 #define DRM_MODE_DPMS_STANDBY	1
106 #define DRM_MODE_DPMS_SUSPEND	2
107 #define DRM_MODE_DPMS_OFF	3
108 
109 /* Scaling mode options */
110 #define DRM_MODE_SCALE_NONE		0 /* Unmodified timing (display or
111 					     software can still scale) */
112 #define DRM_MODE_SCALE_FULLSCREEN	1 /* Full screen, ignore aspect */
113 #define DRM_MODE_SCALE_CENTER		2 /* Centered, no scaling */
114 #define DRM_MODE_SCALE_ASPECT		3 /* Full screen, preserve aspect */
115 
116 /* Dithering mode options */
117 #define DRM_MODE_DITHERING_OFF	0
118 #define DRM_MODE_DITHERING_ON	1
119 #define DRM_MODE_DITHERING_AUTO 2
120 
121 /* Dirty info options */
122 #define DRM_MODE_DIRTY_OFF      0
123 #define DRM_MODE_DIRTY_ON       1
124 #define DRM_MODE_DIRTY_ANNOTATE 2
125 
126 struct drm_mode_modeinfo {
127 	__u32 clock;
128 	__u16 hdisplay;
129 	__u16 hsync_start;
130 	__u16 hsync_end;
131 	__u16 htotal;
132 	__u16 hskew;
133 	__u16 vdisplay;
134 	__u16 vsync_start;
135 	__u16 vsync_end;
136 	__u16 vtotal;
137 	__u16 vscan;
138 
139 	__u32 vrefresh;
140 
141 	__u32 flags;
142 	__u32 type;
143 	char name[DRM_DISPLAY_MODE_LEN];
144 };
145 
146 struct drm_mode_card_res {
147 	__u64 fb_id_ptr;
148 	__u64 crtc_id_ptr;
149 	__u64 connector_id_ptr;
150 	__u64 encoder_id_ptr;
151 	__u32 count_fbs;
152 	__u32 count_crtcs;
153 	__u32 count_connectors;
154 	__u32 count_encoders;
155 	__u32 min_width;
156 	__u32 max_width;
157 	__u32 min_height;
158 	__u32 max_height;
159 };
160 
161 struct drm_mode_crtc {
162 	__u64 set_connectors_ptr;
163 	__u32 count_connectors;
164 
165 	__u32 crtc_id; /**< Id */
166 	__u32 fb_id; /**< Id of framebuffer */
167 
168 	__u32 x; /**< x Position on the framebuffer */
169 	__u32 y; /**< y Position on the framebuffer */
170 
171 	__u32 gamma_size;
172 	__u32 mode_valid;
173 	struct drm_mode_modeinfo mode;
174 };
175 
176 #define DRM_MODE_PRESENT_TOP_FIELD	(1<<0)
177 #define DRM_MODE_PRESENT_BOTTOM_FIELD	(1<<1)
178 
179 /* Planes blend with or override other bits on the CRTC */
180 struct drm_mode_set_plane {
181 	__u32 plane_id;
182 	__u32 crtc_id;
183 	__u32 fb_id; /* fb object contains surface format type */
184 	__u32 flags; /* see above flags */
185 
186 	/* Signed dest location allows it to be partially off screen */
187 	__s32 crtc_x;
188 	__s32 crtc_y;
189 	__u32 crtc_w;
190 	__u32 crtc_h;
191 
192 	/* Source values are 16.16 fixed point */
193 	__u32 src_x;
194 	__u32 src_y;
195 	__u32 src_h;
196 	__u32 src_w;
197 };
198 
199 struct drm_mode_get_plane {
200 	__u32 plane_id;
201 
202 	__u32 crtc_id;
203 	__u32 fb_id;
204 
205 	__u32 possible_crtcs;
206 	__u32 gamma_size;
207 
208 	__u32 count_format_types;
209 	__u64 format_type_ptr;
210 };
211 
212 struct drm_mode_get_plane_res {
213 	__u64 plane_id_ptr;
214 	__u32 count_planes;
215 };
216 
217 #define DRM_MODE_ENCODER_NONE	0
218 #define DRM_MODE_ENCODER_DAC	1
219 #define DRM_MODE_ENCODER_TMDS	2
220 #define DRM_MODE_ENCODER_LVDS	3
221 #define DRM_MODE_ENCODER_TVDAC	4
222 #define DRM_MODE_ENCODER_VIRTUAL 5
223 #define DRM_MODE_ENCODER_DSI	6
224 #define DRM_MODE_ENCODER_DPMST	7
225 #define DRM_MODE_ENCODER_DPI	8
226 
227 struct drm_mode_get_encoder {
228 	__u32 encoder_id;
229 	__u32 encoder_type;
230 
231 	__u32 crtc_id; /**< Id of crtc */
232 
233 	__u32 possible_crtcs;
234 	__u32 possible_clones;
235 };
236 
237 /* This is for connectors with multiple signal types. */
238 /* Try to match DRM_MODE_CONNECTOR_X as closely as possible. */
239 enum drm_mode_subconnector {
240 	DRM_MODE_SUBCONNECTOR_Automatic = 0,
241 	DRM_MODE_SUBCONNECTOR_Unknown = 0,
242 	DRM_MODE_SUBCONNECTOR_DVID = 3,
243 	DRM_MODE_SUBCONNECTOR_DVIA = 4,
244 	DRM_MODE_SUBCONNECTOR_Composite = 5,
245 	DRM_MODE_SUBCONNECTOR_SVIDEO = 6,
246 	DRM_MODE_SUBCONNECTOR_Component = 8,
247 	DRM_MODE_SUBCONNECTOR_SCART = 9,
248 };
249 
250 #define DRM_MODE_CONNECTOR_Unknown	0
251 #define DRM_MODE_CONNECTOR_VGA		1
252 #define DRM_MODE_CONNECTOR_DVII		2
253 #define DRM_MODE_CONNECTOR_DVID		3
254 #define DRM_MODE_CONNECTOR_DVIA		4
255 #define DRM_MODE_CONNECTOR_Composite	5
256 #define DRM_MODE_CONNECTOR_SVIDEO	6
257 #define DRM_MODE_CONNECTOR_LVDS		7
258 #define DRM_MODE_CONNECTOR_Component	8
259 #define DRM_MODE_CONNECTOR_9PinDIN	9
260 #define DRM_MODE_CONNECTOR_DisplayPort	10
261 #define DRM_MODE_CONNECTOR_HDMIA	11
262 #define DRM_MODE_CONNECTOR_HDMIB	12
263 #define DRM_MODE_CONNECTOR_TV		13
264 #define DRM_MODE_CONNECTOR_eDP		14
265 #define DRM_MODE_CONNECTOR_VIRTUAL      15
266 #define DRM_MODE_CONNECTOR_DSI		16
267 #define DRM_MODE_CONNECTOR_DPI		17
268 
269 struct drm_mode_get_connector {
270 
271 	__u64 encoders_ptr;
272 	__u64 modes_ptr;
273 	__u64 props_ptr;
274 	__u64 prop_values_ptr;
275 
276 	__u32 count_modes;
277 	__u32 count_props;
278 	__u32 count_encoders;
279 
280 	__u32 encoder_id; /**< Current Encoder */
281 	__u32 connector_id; /**< Id */
282 	__u32 connector_type;
283 	__u32 connector_type_id;
284 
285 	__u32 connection;
286 	__u32 mm_width;  /**< width in millimeters */
287 	__u32 mm_height; /**< height in millimeters */
288 	__u32 subpixel;
289 
290 	__u32 pad;
291 };
292 
293 #define DRM_MODE_PROP_PENDING	(1<<0)
294 #define DRM_MODE_PROP_RANGE	(1<<1)
295 #define DRM_MODE_PROP_IMMUTABLE	(1<<2)
296 #define DRM_MODE_PROP_ENUM	(1<<3) /* enumerated type with text strings */
297 #define DRM_MODE_PROP_BLOB	(1<<4)
298 #define DRM_MODE_PROP_BITMASK	(1<<5) /* bitmask of enumerated types */
299 
300 /* non-extended types: legacy bitmask, one bit per type: */
301 #define DRM_MODE_PROP_LEGACY_TYPE  ( \
302 		DRM_MODE_PROP_RANGE | \
303 		DRM_MODE_PROP_ENUM | \
304 		DRM_MODE_PROP_BLOB | \
305 		DRM_MODE_PROP_BITMASK)
306 
307 /* extended-types: rather than continue to consume a bit per type,
308  * grab a chunk of the bits to use as integer type id.
309  */
310 #define DRM_MODE_PROP_EXTENDED_TYPE	0x0000ffc0
311 #define DRM_MODE_PROP_TYPE(n)		((n) << 6)
312 #define DRM_MODE_PROP_OBJECT		DRM_MODE_PROP_TYPE(1)
313 #define DRM_MODE_PROP_SIGNED_RANGE	DRM_MODE_PROP_TYPE(2)
314 
315 /* the PROP_ATOMIC flag is used to hide properties from userspace that
316  * is not aware of atomic properties.  This is mostly to work around
317  * older userspace (DDX drivers) that read/write each prop they find,
318  * witout being aware that this could be triggering a lengthy modeset.
319  */
320 #define DRM_MODE_PROP_ATOMIC        0x80000000
321 
322 struct drm_mode_property_enum {
323 	__u64 value;
324 	char name[DRM_PROP_NAME_LEN];
325 };
326 
327 struct drm_mode_get_property {
328 	__u64 values_ptr; /* values and blob lengths */
329 	__u64 enum_blob_ptr; /* enum and blob id ptrs */
330 
331 	__u32 prop_id;
332 	__u32 flags;
333 	char name[DRM_PROP_NAME_LEN];
334 
335 	__u32 count_values;
336 	/* This is only used to count enum values, not blobs. The _blobs is
337 	 * simply because of a historical reason, i.e. backwards compat. */
338 	__u32 count_enum_blobs;
339 };
340 
341 struct drm_mode_connector_set_property {
342 	__u64 value;
343 	__u32 prop_id;
344 	__u32 connector_id;
345 };
346 
347 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
348 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
349 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
350 #define DRM_MODE_OBJECT_MODE 0xdededede
351 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
352 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
353 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
354 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
355 #define DRM_MODE_OBJECT_ANY 0
356 
357 struct drm_mode_obj_get_properties {
358 	__u64 props_ptr;
359 	__u64 prop_values_ptr;
360 	__u32 count_props;
361 	__u32 obj_id;
362 	__u32 obj_type;
363 };
364 
365 struct drm_mode_obj_set_property {
366 	__u64 value;
367 	__u32 prop_id;
368 	__u32 obj_id;
369 	__u32 obj_type;
370 };
371 
372 struct drm_mode_get_blob {
373 	__u32 blob_id;
374 	__u32 length;
375 	__u64 data;
376 };
377 
378 struct drm_mode_fb_cmd {
379 	__u32 fb_id;
380 	__u32 width;
381 	__u32 height;
382 	__u32 pitch;
383 	__u32 bpp;
384 	__u32 depth;
385 	/* driver specific handle */
386 	__u32 handle;
387 };
388 
389 #define DRM_MODE_FB_INTERLACED	(1<<0) /* for interlaced framebuffers */
390 #define DRM_MODE_FB_MODIFIERS	(1<<1) /* enables ->modifer[] */
391 
392 struct drm_mode_fb_cmd2 {
393 	__u32 fb_id;
394 	__u32 width;
395 	__u32 height;
396 	__u32 pixel_format; /* fourcc code from drm_fourcc.h */
397 	__u32 flags; /* see above flags */
398 
399 	/*
400 	 * In case of planar formats, this ioctl allows up to 4
401 	 * buffer objects with offsets and pitches per plane.
402 	 * The pitch and offset order is dictated by the fourcc,
403 	 * e.g. NV12 (http://fourcc.org/yuv.php#NV12) is described as:
404 	 *
405 	 *   YUV 4:2:0 image with a plane of 8 bit Y samples
406 	 *   followed by an interleaved U/V plane containing
407 	 *   8 bit 2x2 subsampled colour difference samples.
408 	 *
409 	 * So it would consist of Y as offsets[0] and UV as
410 	 * offsets[1].  Note that offsets[0] will generally
411 	 * be 0 (but this is not required).
412 	 *
413 	 * To accommodate tiled, compressed, etc formats, a
414 	 * modifier can be specified.  The default value of zero
415 	 * indicates "native" format as specified by the fourcc.
416 	 * Vendor specific modifier token.  Note that even though
417 	 * it looks like we have a modifier per-plane, we in fact
418 	 * do not. The modifier for each plane must be identical.
419 	 * Thus all combinations of different data layouts for
420 	 * multi plane formats must be enumerated as separate
421 	 * modifiers.
422 	 */
423 	__u32 handles[4];
424 	__u32 pitches[4]; /* pitch for each plane */
425 	__u32 offsets[4]; /* offset of each plane */
426 	__u64 modifier[4]; /* ie, tiling, compress */
427 };
428 
429 #define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01
430 #define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02
431 #define DRM_MODE_FB_DIRTY_FLAGS         0x03
432 
433 #define DRM_MODE_FB_DIRTY_MAX_CLIPS     256
434 
435 /*
436  * Mark a region of a framebuffer as dirty.
437  *
438  * Some hardware does not automatically update display contents
439  * as a hardware or software draw to a framebuffer. This ioctl
440  * allows userspace to tell the kernel and the hardware what
441  * regions of the framebuffer have changed.
442  *
443  * The kernel or hardware is free to update more then just the
444  * region specified by the clip rects. The kernel or hardware
445  * may also delay and/or coalesce several calls to dirty into a
446  * single update.
447  *
448  * Userspace may annotate the updates, the annotates are a
449  * promise made by the caller that the change is either a copy
450  * of pixels or a fill of a single color in the region specified.
451  *
452  * If the DRM_MODE_FB_DIRTY_ANNOTATE_COPY flag is given then
453  * the number of updated regions are half of num_clips given,
454  * where the clip rects are paired in src and dst. The width and
455  * height of each one of the pairs must match.
456  *
457  * If the DRM_MODE_FB_DIRTY_ANNOTATE_FILL flag is given the caller
458  * promises that the region specified of the clip rects is filled
459  * completely with a single color as given in the color argument.
460  */
461 
462 struct drm_mode_fb_dirty_cmd {
463 	__u32 fb_id;
464 	__u32 flags;
465 	__u32 color;
466 	__u32 num_clips;
467 	__u64 clips_ptr;
468 };
469 
470 struct drm_mode_mode_cmd {
471 	__u32 connector_id;
472 	struct drm_mode_modeinfo mode;
473 };
474 
475 #define DRM_MODE_CURSOR_BO	0x01
476 #define DRM_MODE_CURSOR_MOVE	0x02
477 #define DRM_MODE_CURSOR_FLAGS	0x03
478 
479 /*
480  * depending on the value in flags different members are used.
481  *
482  * CURSOR_BO uses
483  *    crtc_id
484  *    width
485  *    height
486  *    handle - if 0 turns the cursor off
487  *
488  * CURSOR_MOVE uses
489  *    crtc_id
490  *    x
491  *    y
492  */
493 struct drm_mode_cursor {
494 	__u32 flags;
495 	__u32 crtc_id;
496 	__s32 x;
497 	__s32 y;
498 	__u32 width;
499 	__u32 height;
500 	/* driver specific handle */
501 	__u32 handle;
502 };
503 
504 struct drm_mode_cursor2 {
505 	__u32 flags;
506 	__u32 crtc_id;
507 	__s32 x;
508 	__s32 y;
509 	__u32 width;
510 	__u32 height;
511 	/* driver specific handle */
512 	__u32 handle;
513 	__s32 hot_x;
514 	__s32 hot_y;
515 };
516 
517 struct drm_mode_crtc_lut {
518 	__u32 crtc_id;
519 	__u32 gamma_size;
520 
521 	/* pointers to arrays */
522 	__u64 red;
523 	__u64 green;
524 	__u64 blue;
525 };
526 
527 struct drm_color_ctm {
528 	/* Conversion matrix in S31.32 format. */
529 	__s64 matrix[9];
530 };
531 
532 struct drm_color_lut {
533 	/*
534 	 * Data is U0.16 fixed point format.
535 	 */
536 	__u16 red;
537 	__u16 green;
538 	__u16 blue;
539 	__u16 reserved;
540 };
541 
542 #define DRM_MODE_PAGE_FLIP_EVENT 0x01
543 #define DRM_MODE_PAGE_FLIP_ASYNC 0x02
544 #define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4
545 #define DRM_MODE_PAGE_FLIP_TARGET_RELATIVE 0x8
546 #define DRM_MODE_PAGE_FLIP_TARGET (DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE | \
547 				   DRM_MODE_PAGE_FLIP_TARGET_RELATIVE)
548 #define DRM_MODE_PAGE_FLIP_FLAGS (DRM_MODE_PAGE_FLIP_EVENT | \
549 				  DRM_MODE_PAGE_FLIP_ASYNC | \
550 				  DRM_MODE_PAGE_FLIP_TARGET)
551 
552 /*
553  * Request a page flip on the specified crtc.
554  *
555  * This ioctl will ask KMS to schedule a page flip for the specified
556  * crtc.  Once any pending rendering targeting the specified fb (as of
557  * ioctl time) has completed, the crtc will be reprogrammed to display
558  * that fb after the next vertical refresh.  The ioctl returns
559  * immediately, but subsequent rendering to the current fb will block
560  * in the execbuffer ioctl until the page flip happens.  If a page
561  * flip is already pending as the ioctl is called, EBUSY will be
562  * returned.
563  *
564  * Flag DRM_MODE_PAGE_FLIP_EVENT requests that drm sends back a vblank
565  * event (see drm.h: struct drm_event_vblank) when the page flip is
566  * done.  The user_data field passed in with this ioctl will be
567  * returned as the user_data field in the vblank event struct.
568  *
569  * Flag DRM_MODE_PAGE_FLIP_ASYNC requests that the flip happen
570  * 'as soon as possible', meaning that it not delay waiting for vblank.
571  * This may cause tearing on the screen.
572  *
573  * The reserved field must be zero.
574  */
575 
576 struct drm_mode_crtc_page_flip {
577 	__u32 crtc_id;
578 	__u32 fb_id;
579 	__u32 flags;
580 	__u32 reserved;
581 	__u64 user_data;
582 };
583 
584 /*
585  * Request a page flip on the specified crtc.
586  *
587  * Same as struct drm_mode_crtc_page_flip, but supports new flags and
588  * re-purposes the reserved field:
589  *
590  * The sequence field must be zero unless either of the
591  * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is specified. When
592  * the ABSOLUTE flag is specified, the sequence field denotes the absolute
593  * vblank sequence when the flip should take effect. When the RELATIVE
594  * flag is specified, the sequence field denotes the relative (to the
595  * current one when the ioctl is called) vblank sequence when the flip
596  * should take effect. NOTE: DRM_IOCTL_WAIT_VBLANK must still be used to
597  * make sure the vblank sequence before the target one has passed before
598  * calling this ioctl. The purpose of the
599  * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is merely to clarify
600  * the target for when code dealing with a page flip runs during a
601  * vertical blank period.
602  */
603 
604 struct drm_mode_crtc_page_flip_target {
605 	__u32 crtc_id;
606 	__u32 fb_id;
607 	__u32 flags;
608 	__u32 sequence;
609 	__u64 user_data;
610 };
611 
612 /* create a dumb scanout buffer */
613 struct drm_mode_create_dumb {
614 	__u32 height;
615 	__u32 width;
616 	__u32 bpp;
617 	__u32 flags;
618 	/* handle, pitch, size will be returned */
619 	__u32 handle;
620 	__u32 pitch;
621 	__u64 size;
622 };
623 
624 /* set up for mmap of a dumb scanout buffer */
625 struct drm_mode_map_dumb {
626 	/** Handle for the object being mapped. */
627 	__u32 handle;
628 	__u32 pad;
629 	/**
630 	 * Fake offset to use for subsequent mmap call
631 	 *
632 	 * This is a fixed-size type for 32/64 compatibility.
633 	 */
634 	__u64 offset;
635 };
636 
637 struct drm_mode_destroy_dumb {
638 	__u32 handle;
639 };
640 
641 /* page-flip flags are valid, plus: */
642 #define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
643 #define DRM_MODE_ATOMIC_NONBLOCK  0x0200
644 #define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400
645 
646 #define DRM_MODE_ATOMIC_FLAGS (\
647 		DRM_MODE_PAGE_FLIP_EVENT |\
648 		DRM_MODE_PAGE_FLIP_ASYNC |\
649 		DRM_MODE_ATOMIC_TEST_ONLY |\
650 		DRM_MODE_ATOMIC_NONBLOCK |\
651 		DRM_MODE_ATOMIC_ALLOW_MODESET)
652 
653 struct drm_mode_atomic {
654 	__u32 flags;
655 	__u32 count_objs;
656 	__u64 objs_ptr;
657 	__u64 count_props_ptr;
658 	__u64 props_ptr;
659 	__u64 prop_values_ptr;
660 	__u64 reserved;
661 	__u64 user_data;
662 };
663 
664 /**
665  * Create a new 'blob' data property, copying length bytes from data pointer,
666  * and returning new blob ID.
667  */
668 struct drm_mode_create_blob {
669 	/** Pointer to data to copy. */
670 	__u64 data;
671 	/** Length of data to copy. */
672 	__u32 length;
673 	/** Return: new property ID. */
674 	__u32 blob_id;
675 };
676 
677 /**
678  * Destroy a user-created blob property.
679  */
680 struct drm_mode_destroy_blob {
681 	__u32 blob_id;
682 };
683 
684 #if defined(__cplusplus)
685 }
686 #endif
687 
688 #endif
689