xref: /linux/include/uapi/drm/drm_mode.h (revision 8fc4e4aa2bfca8d32e8bc2a01526ea2da450e6cb)
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 /**
37  * DOC: overview
38  *
39  * DRM exposes many UAPI and structure definition to have a consistent
40  * and standardized interface with user.
41  * Userspace can refer to these structure definitions and UAPI formats
42  * to communicate to driver
43  */
44 
45 #define DRM_CONNECTOR_NAME_LEN	32
46 #define DRM_DISPLAY_MODE_LEN	32
47 #define DRM_PROP_NAME_LEN	32
48 
49 #define DRM_MODE_TYPE_BUILTIN	(1<<0) /* deprecated */
50 #define DRM_MODE_TYPE_CLOCK_C	((1<<1) | DRM_MODE_TYPE_BUILTIN) /* deprecated */
51 #define DRM_MODE_TYPE_CRTC_C	((1<<2) | DRM_MODE_TYPE_BUILTIN) /* deprecated */
52 #define DRM_MODE_TYPE_PREFERRED	(1<<3)
53 #define DRM_MODE_TYPE_DEFAULT	(1<<4) /* deprecated */
54 #define DRM_MODE_TYPE_USERDEF	(1<<5)
55 #define DRM_MODE_TYPE_DRIVER	(1<<6)
56 
57 #define DRM_MODE_TYPE_ALL	(DRM_MODE_TYPE_PREFERRED |	\
58 				 DRM_MODE_TYPE_USERDEF |	\
59 				 DRM_MODE_TYPE_DRIVER)
60 
61 /* Video mode flags */
62 /* bit compatible with the xrandr RR_ definitions (bits 0-13)
63  *
64  * ABI warning: Existing userspace really expects
65  * the mode flags to match the xrandr definitions. Any
66  * changes that don't match the xrandr definitions will
67  * likely need a new client cap or some other mechanism
68  * to avoid breaking existing userspace. This includes
69  * allocating new flags in the previously unused bits!
70  */
71 #define DRM_MODE_FLAG_PHSYNC			(1<<0)
72 #define DRM_MODE_FLAG_NHSYNC			(1<<1)
73 #define DRM_MODE_FLAG_PVSYNC			(1<<2)
74 #define DRM_MODE_FLAG_NVSYNC			(1<<3)
75 #define DRM_MODE_FLAG_INTERLACE			(1<<4)
76 #define DRM_MODE_FLAG_DBLSCAN			(1<<5)
77 #define DRM_MODE_FLAG_CSYNC			(1<<6)
78 #define DRM_MODE_FLAG_PCSYNC			(1<<7)
79 #define DRM_MODE_FLAG_NCSYNC			(1<<8)
80 #define DRM_MODE_FLAG_HSKEW			(1<<9) /* hskew provided */
81 #define DRM_MODE_FLAG_BCAST			(1<<10) /* deprecated */
82 #define DRM_MODE_FLAG_PIXMUX			(1<<11) /* deprecated */
83 #define DRM_MODE_FLAG_DBLCLK			(1<<12)
84 #define DRM_MODE_FLAG_CLKDIV2			(1<<13)
85  /*
86   * When adding a new stereo mode don't forget to adjust DRM_MODE_FLAGS_3D_MAX
87   * (define not exposed to user space).
88   */
89 #define DRM_MODE_FLAG_3D_MASK			(0x1f<<14)
90 #define  DRM_MODE_FLAG_3D_NONE		(0<<14)
91 #define  DRM_MODE_FLAG_3D_FRAME_PACKING		(1<<14)
92 #define  DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE	(2<<14)
93 #define  DRM_MODE_FLAG_3D_LINE_ALTERNATIVE	(3<<14)
94 #define  DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL	(4<<14)
95 #define  DRM_MODE_FLAG_3D_L_DEPTH		(5<<14)
96 #define  DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH	(6<<14)
97 #define  DRM_MODE_FLAG_3D_TOP_AND_BOTTOM	(7<<14)
98 #define  DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF	(8<<14)
99 
100 /* Picture aspect ratio options */
101 #define DRM_MODE_PICTURE_ASPECT_NONE		0
102 #define DRM_MODE_PICTURE_ASPECT_4_3		1
103 #define DRM_MODE_PICTURE_ASPECT_16_9		2
104 #define DRM_MODE_PICTURE_ASPECT_64_27		3
105 #define DRM_MODE_PICTURE_ASPECT_256_135		4
106 
107 /* Content type options */
108 #define DRM_MODE_CONTENT_TYPE_NO_DATA		0
109 #define DRM_MODE_CONTENT_TYPE_GRAPHICS		1
110 #define DRM_MODE_CONTENT_TYPE_PHOTO		2
111 #define DRM_MODE_CONTENT_TYPE_CINEMA		3
112 #define DRM_MODE_CONTENT_TYPE_GAME		4
113 
114 /* Aspect ratio flag bitmask (4 bits 22:19) */
115 #define DRM_MODE_FLAG_PIC_AR_MASK		(0x0F<<19)
116 #define  DRM_MODE_FLAG_PIC_AR_NONE \
117 			(DRM_MODE_PICTURE_ASPECT_NONE<<19)
118 #define  DRM_MODE_FLAG_PIC_AR_4_3 \
119 			(DRM_MODE_PICTURE_ASPECT_4_3<<19)
120 #define  DRM_MODE_FLAG_PIC_AR_16_9 \
121 			(DRM_MODE_PICTURE_ASPECT_16_9<<19)
122 #define  DRM_MODE_FLAG_PIC_AR_64_27 \
123 			(DRM_MODE_PICTURE_ASPECT_64_27<<19)
124 #define  DRM_MODE_FLAG_PIC_AR_256_135 \
125 			(DRM_MODE_PICTURE_ASPECT_256_135<<19)
126 
127 #define  DRM_MODE_FLAG_ALL	(DRM_MODE_FLAG_PHSYNC |		\
128 				 DRM_MODE_FLAG_NHSYNC |		\
129 				 DRM_MODE_FLAG_PVSYNC |		\
130 				 DRM_MODE_FLAG_NVSYNC |		\
131 				 DRM_MODE_FLAG_INTERLACE |	\
132 				 DRM_MODE_FLAG_DBLSCAN |	\
133 				 DRM_MODE_FLAG_CSYNC |		\
134 				 DRM_MODE_FLAG_PCSYNC |		\
135 				 DRM_MODE_FLAG_NCSYNC |		\
136 				 DRM_MODE_FLAG_HSKEW |		\
137 				 DRM_MODE_FLAG_DBLCLK |		\
138 				 DRM_MODE_FLAG_CLKDIV2 |	\
139 				 DRM_MODE_FLAG_3D_MASK)
140 
141 /* DPMS flags */
142 /* bit compatible with the xorg definitions. */
143 #define DRM_MODE_DPMS_ON	0
144 #define DRM_MODE_DPMS_STANDBY	1
145 #define DRM_MODE_DPMS_SUSPEND	2
146 #define DRM_MODE_DPMS_OFF	3
147 
148 /* Scaling mode options */
149 #define DRM_MODE_SCALE_NONE		0 /* Unmodified timing (display or
150 					     software can still scale) */
151 #define DRM_MODE_SCALE_FULLSCREEN	1 /* Full screen, ignore aspect */
152 #define DRM_MODE_SCALE_CENTER		2 /* Centered, no scaling */
153 #define DRM_MODE_SCALE_ASPECT		3 /* Full screen, preserve aspect */
154 
155 /* Dithering mode options */
156 #define DRM_MODE_DITHERING_OFF	0
157 #define DRM_MODE_DITHERING_ON	1
158 #define DRM_MODE_DITHERING_AUTO 2
159 
160 /* Dirty info options */
161 #define DRM_MODE_DIRTY_OFF      0
162 #define DRM_MODE_DIRTY_ON       1
163 #define DRM_MODE_DIRTY_ANNOTATE 2
164 
165 /* Link Status options */
166 #define DRM_MODE_LINK_STATUS_GOOD	0
167 #define DRM_MODE_LINK_STATUS_BAD	1
168 
169 /*
170  * DRM_MODE_ROTATE_<degrees>
171  *
172  * Signals that a drm plane is been rotated <degrees> degrees in counter
173  * clockwise direction.
174  *
175  * This define is provided as a convenience, looking up the property id
176  * using the name->prop id lookup is the preferred method.
177  */
178 #define DRM_MODE_ROTATE_0       (1<<0)
179 #define DRM_MODE_ROTATE_90      (1<<1)
180 #define DRM_MODE_ROTATE_180     (1<<2)
181 #define DRM_MODE_ROTATE_270     (1<<3)
182 
183 /*
184  * DRM_MODE_ROTATE_MASK
185  *
186  * Bitmask used to look for drm plane rotations.
187  */
188 #define DRM_MODE_ROTATE_MASK (\
189 		DRM_MODE_ROTATE_0  | \
190 		DRM_MODE_ROTATE_90  | \
191 		DRM_MODE_ROTATE_180 | \
192 		DRM_MODE_ROTATE_270)
193 
194 /*
195  * DRM_MODE_REFLECT_<axis>
196  *
197  * Signals that the contents of a drm plane is reflected along the <axis> axis,
198  * in the same way as mirroring.
199  * See kerneldoc chapter "Plane Composition Properties" for more details.
200  *
201  * This define is provided as a convenience, looking up the property id
202  * using the name->prop id lookup is the preferred method.
203  */
204 #define DRM_MODE_REFLECT_X      (1<<4)
205 #define DRM_MODE_REFLECT_Y      (1<<5)
206 
207 /*
208  * DRM_MODE_REFLECT_MASK
209  *
210  * Bitmask used to look for drm plane reflections.
211  */
212 #define DRM_MODE_REFLECT_MASK (\
213 		DRM_MODE_REFLECT_X | \
214 		DRM_MODE_REFLECT_Y)
215 
216 /* Content Protection Flags */
217 #define DRM_MODE_CONTENT_PROTECTION_UNDESIRED	0
218 #define DRM_MODE_CONTENT_PROTECTION_DESIRED     1
219 #define DRM_MODE_CONTENT_PROTECTION_ENABLED     2
220 
221 /**
222  * struct drm_mode_modeinfo - Display mode information.
223  * @clock: pixel clock in kHz
224  * @hdisplay: horizontal display size
225  * @hsync_start: horizontal sync start
226  * @hsync_end: horizontal sync end
227  * @htotal: horizontal total size
228  * @hskew: horizontal skew
229  * @vdisplay: vertical display size
230  * @vsync_start: vertical sync start
231  * @vsync_end: vertical sync end
232  * @vtotal: vertical total size
233  * @vscan: vertical scan
234  * @vrefresh: approximate vertical refresh rate in Hz
235  * @flags: bitmask of misc. flags, see DRM_MODE_FLAG_* defines
236  * @type: bitmask of type flags, see DRM_MODE_TYPE_* defines
237  * @name: string describing the mode resolution
238  *
239  * This is the user-space API display mode information structure. For the
240  * kernel version see struct drm_display_mode.
241  */
242 struct drm_mode_modeinfo {
243 	__u32 clock;
244 	__u16 hdisplay;
245 	__u16 hsync_start;
246 	__u16 hsync_end;
247 	__u16 htotal;
248 	__u16 hskew;
249 	__u16 vdisplay;
250 	__u16 vsync_start;
251 	__u16 vsync_end;
252 	__u16 vtotal;
253 	__u16 vscan;
254 
255 	__u32 vrefresh;
256 
257 	__u32 flags;
258 	__u32 type;
259 	char name[DRM_DISPLAY_MODE_LEN];
260 };
261 
262 struct drm_mode_card_res {
263 	__u64 fb_id_ptr;
264 	__u64 crtc_id_ptr;
265 	__u64 connector_id_ptr;
266 	__u64 encoder_id_ptr;
267 	__u32 count_fbs;
268 	__u32 count_crtcs;
269 	__u32 count_connectors;
270 	__u32 count_encoders;
271 	__u32 min_width;
272 	__u32 max_width;
273 	__u32 min_height;
274 	__u32 max_height;
275 };
276 
277 struct drm_mode_crtc {
278 	__u64 set_connectors_ptr;
279 	__u32 count_connectors;
280 
281 	__u32 crtc_id; /**< Id */
282 	__u32 fb_id; /**< Id of framebuffer */
283 
284 	__u32 x; /**< x Position on the framebuffer */
285 	__u32 y; /**< y Position on the framebuffer */
286 
287 	__u32 gamma_size;
288 	__u32 mode_valid;
289 	struct drm_mode_modeinfo mode;
290 };
291 
292 #define DRM_MODE_PRESENT_TOP_FIELD	(1<<0)
293 #define DRM_MODE_PRESENT_BOTTOM_FIELD	(1<<1)
294 
295 /* Planes blend with or override other bits on the CRTC */
296 struct drm_mode_set_plane {
297 	__u32 plane_id;
298 	__u32 crtc_id;
299 	__u32 fb_id; /* fb object contains surface format type */
300 	__u32 flags; /* see above flags */
301 
302 	/* Signed dest location allows it to be partially off screen */
303 	__s32 crtc_x;
304 	__s32 crtc_y;
305 	__u32 crtc_w;
306 	__u32 crtc_h;
307 
308 	/* Source values are 16.16 fixed point */
309 	__u32 src_x;
310 	__u32 src_y;
311 	__u32 src_h;
312 	__u32 src_w;
313 };
314 
315 struct drm_mode_get_plane {
316 	__u32 plane_id;
317 
318 	__u32 crtc_id;
319 	__u32 fb_id;
320 
321 	__u32 possible_crtcs;
322 	__u32 gamma_size;
323 
324 	__u32 count_format_types;
325 	__u64 format_type_ptr;
326 };
327 
328 struct drm_mode_get_plane_res {
329 	__u64 plane_id_ptr;
330 	__u32 count_planes;
331 };
332 
333 #define DRM_MODE_ENCODER_NONE	0
334 #define DRM_MODE_ENCODER_DAC	1
335 #define DRM_MODE_ENCODER_TMDS	2
336 #define DRM_MODE_ENCODER_LVDS	3
337 #define DRM_MODE_ENCODER_TVDAC	4
338 #define DRM_MODE_ENCODER_VIRTUAL 5
339 #define DRM_MODE_ENCODER_DSI	6
340 #define DRM_MODE_ENCODER_DPMST	7
341 #define DRM_MODE_ENCODER_DPI	8
342 
343 struct drm_mode_get_encoder {
344 	__u32 encoder_id;
345 	__u32 encoder_type;
346 
347 	__u32 crtc_id; /**< Id of crtc */
348 
349 	__u32 possible_crtcs;
350 	__u32 possible_clones;
351 };
352 
353 /* This is for connectors with multiple signal types. */
354 /* Try to match DRM_MODE_CONNECTOR_X as closely as possible. */
355 enum drm_mode_subconnector {
356 	DRM_MODE_SUBCONNECTOR_Automatic   = 0,  /* DVI-I, TV     */
357 	DRM_MODE_SUBCONNECTOR_Unknown     = 0,  /* DVI-I, TV, DP */
358 	DRM_MODE_SUBCONNECTOR_VGA	  = 1,  /*            DP */
359 	DRM_MODE_SUBCONNECTOR_DVID	  = 3,  /* DVI-I      DP */
360 	DRM_MODE_SUBCONNECTOR_DVIA	  = 4,  /* DVI-I         */
361 	DRM_MODE_SUBCONNECTOR_Composite   = 5,  /*        TV     */
362 	DRM_MODE_SUBCONNECTOR_SVIDEO	  = 6,  /*        TV     */
363 	DRM_MODE_SUBCONNECTOR_Component   = 8,  /*        TV     */
364 	DRM_MODE_SUBCONNECTOR_SCART	  = 9,  /*        TV     */
365 	DRM_MODE_SUBCONNECTOR_DisplayPort = 10, /*            DP */
366 	DRM_MODE_SUBCONNECTOR_HDMIA       = 11, /*            DP */
367 	DRM_MODE_SUBCONNECTOR_Native      = 15, /*            DP */
368 	DRM_MODE_SUBCONNECTOR_Wireless    = 18, /*            DP */
369 };
370 
371 #define DRM_MODE_CONNECTOR_Unknown	0
372 #define DRM_MODE_CONNECTOR_VGA		1
373 #define DRM_MODE_CONNECTOR_DVII		2
374 #define DRM_MODE_CONNECTOR_DVID		3
375 #define DRM_MODE_CONNECTOR_DVIA		4
376 #define DRM_MODE_CONNECTOR_Composite	5
377 #define DRM_MODE_CONNECTOR_SVIDEO	6
378 #define DRM_MODE_CONNECTOR_LVDS		7
379 #define DRM_MODE_CONNECTOR_Component	8
380 #define DRM_MODE_CONNECTOR_9PinDIN	9
381 #define DRM_MODE_CONNECTOR_DisplayPort	10
382 #define DRM_MODE_CONNECTOR_HDMIA	11
383 #define DRM_MODE_CONNECTOR_HDMIB	12
384 #define DRM_MODE_CONNECTOR_TV		13
385 #define DRM_MODE_CONNECTOR_eDP		14
386 #define DRM_MODE_CONNECTOR_VIRTUAL      15
387 #define DRM_MODE_CONNECTOR_DSI		16
388 #define DRM_MODE_CONNECTOR_DPI		17
389 #define DRM_MODE_CONNECTOR_WRITEBACK	18
390 #define DRM_MODE_CONNECTOR_SPI		19
391 #define DRM_MODE_CONNECTOR_USB		20
392 
393 /**
394  * struct drm_mode_get_connector - Get connector metadata.
395  *
396  * User-space can perform a GETCONNECTOR ioctl to retrieve information about a
397  * connector. User-space is expected to retrieve encoders, modes and properties
398  * by performing this ioctl at least twice: the first time to retrieve the
399  * number of elements, the second time to retrieve the elements themselves.
400  *
401  * To retrieve the number of elements, set @count_props and @count_encoders to
402  * zero, set @count_modes to 1, and set @modes_ptr to a temporary struct
403  * drm_mode_modeinfo element.
404  *
405  * To retrieve the elements, allocate arrays for @encoders_ptr, @modes_ptr,
406  * @props_ptr and @prop_values_ptr, then set @count_modes, @count_props and
407  * @count_encoders to their capacity.
408  *
409  * Performing the ioctl only twice may be racy: the number of elements may have
410  * changed with a hotplug event in-between the two ioctls. User-space is
411  * expected to retry the last ioctl until the number of elements stabilizes.
412  * The kernel won't fill any array which doesn't have the expected length.
413  *
414  * **Force-probing a connector**
415  *
416  * If the @count_modes field is set to zero, the kernel will perform a forced
417  * probe on the connector to refresh the connector status, modes and EDID.
418  * A forced-probe can be slow, might cause flickering and the ioctl will block.
419  *
420  * User-space needs to force-probe connectors to ensure their metadata is
421  * up-to-date at startup and after receiving a hot-plug event. User-space
422  * may perform a forced-probe when the user explicitly requests it. User-space
423  * shouldn't perform a forced-probe in other situations.
424  */
425 struct drm_mode_get_connector {
426 	/** @encoders_ptr: Pointer to ``__u32`` array of object IDs. */
427 	__u64 encoders_ptr;
428 	/** @modes_ptr: Pointer to struct drm_mode_modeinfo array. */
429 	__u64 modes_ptr;
430 	/** @props_ptr: Pointer to ``__u32`` array of property IDs. */
431 	__u64 props_ptr;
432 	/** @prop_values_ptr: Pointer to ``__u64`` array of property values. */
433 	__u64 prop_values_ptr;
434 
435 	/** @count_modes: Number of modes. */
436 	__u32 count_modes;
437 	/** @count_props: Number of properties. */
438 	__u32 count_props;
439 	/** @count_encoders: Number of encoders. */
440 	__u32 count_encoders;
441 
442 	/** @encoder_id: Object ID of the current encoder. */
443 	__u32 encoder_id;
444 	/** @connector_id: Object ID of the connector. */
445 	__u32 connector_id;
446 	/**
447 	 * @connector_type: Type of the connector.
448 	 *
449 	 * See DRM_MODE_CONNECTOR_* defines.
450 	 */
451 	__u32 connector_type;
452 	/**
453 	 * @connector_type_id: Type-specific connector number.
454 	 *
455 	 * This is not an object ID. This is a per-type connector number. Each
456 	 * (type, type_id) combination is unique across all connectors of a DRM
457 	 * device.
458 	 */
459 	__u32 connector_type_id;
460 
461 	/**
462 	 * @connection: Status of the connector.
463 	 *
464 	 * See enum drm_connector_status.
465 	 */
466 	__u32 connection;
467 	/** @mm_width: Width of the connected sink in millimeters. */
468 	__u32 mm_width;
469 	/** @mm_height: Height of the connected sink in millimeters. */
470 	__u32 mm_height;
471 	/**
472 	 * @subpixel: Subpixel order of the connected sink.
473 	 *
474 	 * See enum subpixel_order.
475 	 */
476 	__u32 subpixel;
477 
478 	/** @pad: Padding, must be zero. */
479 	__u32 pad;
480 };
481 
482 #define DRM_MODE_PROP_PENDING	(1<<0) /* deprecated, do not use */
483 #define DRM_MODE_PROP_RANGE	(1<<1)
484 #define DRM_MODE_PROP_IMMUTABLE	(1<<2)
485 #define DRM_MODE_PROP_ENUM	(1<<3) /* enumerated type with text strings */
486 #define DRM_MODE_PROP_BLOB	(1<<4)
487 #define DRM_MODE_PROP_BITMASK	(1<<5) /* bitmask of enumerated types */
488 
489 /* non-extended types: legacy bitmask, one bit per type: */
490 #define DRM_MODE_PROP_LEGACY_TYPE  ( \
491 		DRM_MODE_PROP_RANGE | \
492 		DRM_MODE_PROP_ENUM | \
493 		DRM_MODE_PROP_BLOB | \
494 		DRM_MODE_PROP_BITMASK)
495 
496 /* extended-types: rather than continue to consume a bit per type,
497  * grab a chunk of the bits to use as integer type id.
498  */
499 #define DRM_MODE_PROP_EXTENDED_TYPE	0x0000ffc0
500 #define DRM_MODE_PROP_TYPE(n)		((n) << 6)
501 #define DRM_MODE_PROP_OBJECT		DRM_MODE_PROP_TYPE(1)
502 #define DRM_MODE_PROP_SIGNED_RANGE	DRM_MODE_PROP_TYPE(2)
503 
504 /* the PROP_ATOMIC flag is used to hide properties from userspace that
505  * is not aware of atomic properties.  This is mostly to work around
506  * older userspace (DDX drivers) that read/write each prop they find,
507  * witout being aware that this could be triggering a lengthy modeset.
508  */
509 #define DRM_MODE_PROP_ATOMIC        0x80000000
510 
511 struct drm_mode_property_enum {
512 	__u64 value;
513 	char name[DRM_PROP_NAME_LEN];
514 };
515 
516 struct drm_mode_get_property {
517 	__u64 values_ptr; /* values and blob lengths */
518 	__u64 enum_blob_ptr; /* enum and blob id ptrs */
519 
520 	__u32 prop_id;
521 	__u32 flags;
522 	char name[DRM_PROP_NAME_LEN];
523 
524 	__u32 count_values;
525 	/* This is only used to count enum values, not blobs. The _blobs is
526 	 * simply because of a historical reason, i.e. backwards compat. */
527 	__u32 count_enum_blobs;
528 };
529 
530 struct drm_mode_connector_set_property {
531 	__u64 value;
532 	__u32 prop_id;
533 	__u32 connector_id;
534 };
535 
536 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
537 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
538 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
539 #define DRM_MODE_OBJECT_MODE 0xdededede
540 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
541 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
542 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
543 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
544 #define DRM_MODE_OBJECT_ANY 0
545 
546 struct drm_mode_obj_get_properties {
547 	__u64 props_ptr;
548 	__u64 prop_values_ptr;
549 	__u32 count_props;
550 	__u32 obj_id;
551 	__u32 obj_type;
552 };
553 
554 struct drm_mode_obj_set_property {
555 	__u64 value;
556 	__u32 prop_id;
557 	__u32 obj_id;
558 	__u32 obj_type;
559 };
560 
561 struct drm_mode_get_blob {
562 	__u32 blob_id;
563 	__u32 length;
564 	__u64 data;
565 };
566 
567 struct drm_mode_fb_cmd {
568 	__u32 fb_id;
569 	__u32 width;
570 	__u32 height;
571 	__u32 pitch;
572 	__u32 bpp;
573 	__u32 depth;
574 	/* driver specific handle */
575 	__u32 handle;
576 };
577 
578 #define DRM_MODE_FB_INTERLACED	(1<<0) /* for interlaced framebuffers */
579 #define DRM_MODE_FB_MODIFIERS	(1<<1) /* enables ->modifer[] */
580 
581 struct drm_mode_fb_cmd2 {
582 	__u32 fb_id;
583 	__u32 width;
584 	__u32 height;
585 	__u32 pixel_format; /* fourcc code from drm_fourcc.h */
586 	__u32 flags; /* see above flags */
587 
588 	/*
589 	 * In case of planar formats, this ioctl allows up to 4
590 	 * buffer objects with offsets and pitches per plane.
591 	 * The pitch and offset order is dictated by the fourcc,
592 	 * e.g. NV12 (https://fourcc.org/yuv.php#NV12) is described as:
593 	 *
594 	 *   YUV 4:2:0 image with a plane of 8 bit Y samples
595 	 *   followed by an interleaved U/V plane containing
596 	 *   8 bit 2x2 subsampled colour difference samples.
597 	 *
598 	 * So it would consist of Y as offsets[0] and UV as
599 	 * offsets[1].  Note that offsets[0] will generally
600 	 * be 0 (but this is not required).
601 	 *
602 	 * To accommodate tiled, compressed, etc formats, a
603 	 * modifier can be specified.  The default value of zero
604 	 * indicates "native" format as specified by the fourcc.
605 	 * Vendor specific modifier token.  Note that even though
606 	 * it looks like we have a modifier per-plane, we in fact
607 	 * do not. The modifier for each plane must be identical.
608 	 * Thus all combinations of different data layouts for
609 	 * multi plane formats must be enumerated as separate
610 	 * modifiers.
611 	 */
612 	__u32 handles[4];
613 	__u32 pitches[4]; /* pitch for each plane */
614 	__u32 offsets[4]; /* offset of each plane */
615 	__u64 modifier[4]; /* ie, tiling, compress */
616 };
617 
618 #define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01
619 #define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02
620 #define DRM_MODE_FB_DIRTY_FLAGS         0x03
621 
622 #define DRM_MODE_FB_DIRTY_MAX_CLIPS     256
623 
624 /*
625  * Mark a region of a framebuffer as dirty.
626  *
627  * Some hardware does not automatically update display contents
628  * as a hardware or software draw to a framebuffer. This ioctl
629  * allows userspace to tell the kernel and the hardware what
630  * regions of the framebuffer have changed.
631  *
632  * The kernel or hardware is free to update more then just the
633  * region specified by the clip rects. The kernel or hardware
634  * may also delay and/or coalesce several calls to dirty into a
635  * single update.
636  *
637  * Userspace may annotate the updates, the annotates are a
638  * promise made by the caller that the change is either a copy
639  * of pixels or a fill of a single color in the region specified.
640  *
641  * If the DRM_MODE_FB_DIRTY_ANNOTATE_COPY flag is given then
642  * the number of updated regions are half of num_clips given,
643  * where the clip rects are paired in src and dst. The width and
644  * height of each one of the pairs must match.
645  *
646  * If the DRM_MODE_FB_DIRTY_ANNOTATE_FILL flag is given the caller
647  * promises that the region specified of the clip rects is filled
648  * completely with a single color as given in the color argument.
649  */
650 
651 struct drm_mode_fb_dirty_cmd {
652 	__u32 fb_id;
653 	__u32 flags;
654 	__u32 color;
655 	__u32 num_clips;
656 	__u64 clips_ptr;
657 };
658 
659 struct drm_mode_mode_cmd {
660 	__u32 connector_id;
661 	struct drm_mode_modeinfo mode;
662 };
663 
664 #define DRM_MODE_CURSOR_BO	0x01
665 #define DRM_MODE_CURSOR_MOVE	0x02
666 #define DRM_MODE_CURSOR_FLAGS	0x03
667 
668 /*
669  * depending on the value in flags different members are used.
670  *
671  * CURSOR_BO uses
672  *    crtc_id
673  *    width
674  *    height
675  *    handle - if 0 turns the cursor off
676  *
677  * CURSOR_MOVE uses
678  *    crtc_id
679  *    x
680  *    y
681  */
682 struct drm_mode_cursor {
683 	__u32 flags;
684 	__u32 crtc_id;
685 	__s32 x;
686 	__s32 y;
687 	__u32 width;
688 	__u32 height;
689 	/* driver specific handle */
690 	__u32 handle;
691 };
692 
693 struct drm_mode_cursor2 {
694 	__u32 flags;
695 	__u32 crtc_id;
696 	__s32 x;
697 	__s32 y;
698 	__u32 width;
699 	__u32 height;
700 	/* driver specific handle */
701 	__u32 handle;
702 	__s32 hot_x;
703 	__s32 hot_y;
704 };
705 
706 struct drm_mode_crtc_lut {
707 	__u32 crtc_id;
708 	__u32 gamma_size;
709 
710 	/* pointers to arrays */
711 	__u64 red;
712 	__u64 green;
713 	__u64 blue;
714 };
715 
716 struct drm_color_ctm {
717 	/*
718 	 * Conversion matrix in S31.32 sign-magnitude
719 	 * (not two's complement!) format.
720 	 */
721 	__u64 matrix[9];
722 };
723 
724 struct drm_color_lut {
725 	/*
726 	 * Values are mapped linearly to 0.0 - 1.0 range, with 0x0 == 0.0 and
727 	 * 0xffff == 1.0.
728 	 */
729 	__u16 red;
730 	__u16 green;
731 	__u16 blue;
732 	__u16 reserved;
733 };
734 
735 /**
736  * struct hdr_metadata_infoframe - HDR Metadata Infoframe Data.
737  *
738  * HDR Metadata Infoframe as per CTA 861.G spec. This is expected
739  * to match exactly with the spec.
740  *
741  * Userspace is expected to pass the metadata information as per
742  * the format described in this structure.
743  */
744 struct hdr_metadata_infoframe {
745 	/**
746 	 * @eotf: Electro-Optical Transfer Function (EOTF)
747 	 * used in the stream.
748 	 */
749 	__u8 eotf;
750 	/**
751 	 * @metadata_type: Static_Metadata_Descriptor_ID.
752 	 */
753 	__u8 metadata_type;
754 	/**
755 	 * @display_primaries: Color Primaries of the Data.
756 	 * These are coded as unsigned 16-bit values in units of
757 	 * 0.00002, where 0x0000 represents zero and 0xC350
758 	 * represents 1.0000.
759 	 * @display_primaries.x: X cordinate of color primary.
760 	 * @display_primaries.y: Y cordinate of color primary.
761 	 */
762 	struct {
763 		__u16 x, y;
764 		} display_primaries[3];
765 	/**
766 	 * @white_point: White Point of Colorspace Data.
767 	 * These are coded as unsigned 16-bit values in units of
768 	 * 0.00002, where 0x0000 represents zero and 0xC350
769 	 * represents 1.0000.
770 	 * @white_point.x: X cordinate of whitepoint of color primary.
771 	 * @white_point.y: Y cordinate of whitepoint of color primary.
772 	 */
773 	struct {
774 		__u16 x, y;
775 		} white_point;
776 	/**
777 	 * @max_display_mastering_luminance: Max Mastering Display Luminance.
778 	 * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
779 	 * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
780 	 */
781 	__u16 max_display_mastering_luminance;
782 	/**
783 	 * @min_display_mastering_luminance: Min Mastering Display Luminance.
784 	 * This value is coded as an unsigned 16-bit value in units of
785 	 * 0.0001 cd/m2, where 0x0001 represents 0.0001 cd/m2 and 0xFFFF
786 	 * represents 6.5535 cd/m2.
787 	 */
788 	__u16 min_display_mastering_luminance;
789 	/**
790 	 * @max_cll: Max Content Light Level.
791 	 * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
792 	 * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
793 	 */
794 	__u16 max_cll;
795 	/**
796 	 * @max_fall: Max Frame Average Light Level.
797 	 * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
798 	 * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
799 	 */
800 	__u16 max_fall;
801 };
802 
803 /**
804  * struct hdr_output_metadata - HDR output metadata
805  *
806  * Metadata Information to be passed from userspace
807  */
808 struct hdr_output_metadata {
809 	/**
810 	 * @metadata_type: Static_Metadata_Descriptor_ID.
811 	 */
812 	__u32 metadata_type;
813 	/**
814 	 * @hdmi_metadata_type1: HDR Metadata Infoframe.
815 	 */
816 	union {
817 		struct hdr_metadata_infoframe hdmi_metadata_type1;
818 	};
819 };
820 
821 #define DRM_MODE_PAGE_FLIP_EVENT 0x01
822 #define DRM_MODE_PAGE_FLIP_ASYNC 0x02
823 #define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4
824 #define DRM_MODE_PAGE_FLIP_TARGET_RELATIVE 0x8
825 #define DRM_MODE_PAGE_FLIP_TARGET (DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE | \
826 				   DRM_MODE_PAGE_FLIP_TARGET_RELATIVE)
827 #define DRM_MODE_PAGE_FLIP_FLAGS (DRM_MODE_PAGE_FLIP_EVENT | \
828 				  DRM_MODE_PAGE_FLIP_ASYNC | \
829 				  DRM_MODE_PAGE_FLIP_TARGET)
830 
831 /*
832  * Request a page flip on the specified crtc.
833  *
834  * This ioctl will ask KMS to schedule a page flip for the specified
835  * crtc.  Once any pending rendering targeting the specified fb (as of
836  * ioctl time) has completed, the crtc will be reprogrammed to display
837  * that fb after the next vertical refresh.  The ioctl returns
838  * immediately, but subsequent rendering to the current fb will block
839  * in the execbuffer ioctl until the page flip happens.  If a page
840  * flip is already pending as the ioctl is called, EBUSY will be
841  * returned.
842  *
843  * Flag DRM_MODE_PAGE_FLIP_EVENT requests that drm sends back a vblank
844  * event (see drm.h: struct drm_event_vblank) when the page flip is
845  * done.  The user_data field passed in with this ioctl will be
846  * returned as the user_data field in the vblank event struct.
847  *
848  * Flag DRM_MODE_PAGE_FLIP_ASYNC requests that the flip happen
849  * 'as soon as possible', meaning that it not delay waiting for vblank.
850  * This may cause tearing on the screen.
851  *
852  * The reserved field must be zero.
853  */
854 
855 struct drm_mode_crtc_page_flip {
856 	__u32 crtc_id;
857 	__u32 fb_id;
858 	__u32 flags;
859 	__u32 reserved;
860 	__u64 user_data;
861 };
862 
863 /*
864  * Request a page flip on the specified crtc.
865  *
866  * Same as struct drm_mode_crtc_page_flip, but supports new flags and
867  * re-purposes the reserved field:
868  *
869  * The sequence field must be zero unless either of the
870  * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is specified. When
871  * the ABSOLUTE flag is specified, the sequence field denotes the absolute
872  * vblank sequence when the flip should take effect. When the RELATIVE
873  * flag is specified, the sequence field denotes the relative (to the
874  * current one when the ioctl is called) vblank sequence when the flip
875  * should take effect. NOTE: DRM_IOCTL_WAIT_VBLANK must still be used to
876  * make sure the vblank sequence before the target one has passed before
877  * calling this ioctl. The purpose of the
878  * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is merely to clarify
879  * the target for when code dealing with a page flip runs during a
880  * vertical blank period.
881  */
882 
883 struct drm_mode_crtc_page_flip_target {
884 	__u32 crtc_id;
885 	__u32 fb_id;
886 	__u32 flags;
887 	__u32 sequence;
888 	__u64 user_data;
889 };
890 
891 /* create a dumb scanout buffer */
892 struct drm_mode_create_dumb {
893 	__u32 height;
894 	__u32 width;
895 	__u32 bpp;
896 	__u32 flags;
897 	/* handle, pitch, size will be returned */
898 	__u32 handle;
899 	__u32 pitch;
900 	__u64 size;
901 };
902 
903 /* set up for mmap of a dumb scanout buffer */
904 struct drm_mode_map_dumb {
905 	/** Handle for the object being mapped. */
906 	__u32 handle;
907 	__u32 pad;
908 	/**
909 	 * Fake offset to use for subsequent mmap call
910 	 *
911 	 * This is a fixed-size type for 32/64 compatibility.
912 	 */
913 	__u64 offset;
914 };
915 
916 struct drm_mode_destroy_dumb {
917 	__u32 handle;
918 };
919 
920 /* page-flip flags are valid, plus: */
921 #define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
922 #define DRM_MODE_ATOMIC_NONBLOCK  0x0200
923 #define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400
924 
925 #define DRM_MODE_ATOMIC_FLAGS (\
926 		DRM_MODE_PAGE_FLIP_EVENT |\
927 		DRM_MODE_PAGE_FLIP_ASYNC |\
928 		DRM_MODE_ATOMIC_TEST_ONLY |\
929 		DRM_MODE_ATOMIC_NONBLOCK |\
930 		DRM_MODE_ATOMIC_ALLOW_MODESET)
931 
932 struct drm_mode_atomic {
933 	__u32 flags;
934 	__u32 count_objs;
935 	__u64 objs_ptr;
936 	__u64 count_props_ptr;
937 	__u64 props_ptr;
938 	__u64 prop_values_ptr;
939 	__u64 reserved;
940 	__u64 user_data;
941 };
942 
943 struct drm_format_modifier_blob {
944 #define FORMAT_BLOB_CURRENT 1
945 	/* Version of this blob format */
946 	__u32 version;
947 
948 	/* Flags */
949 	__u32 flags;
950 
951 	/* Number of fourcc formats supported */
952 	__u32 count_formats;
953 
954 	/* Where in this blob the formats exist (in bytes) */
955 	__u32 formats_offset;
956 
957 	/* Number of drm_format_modifiers */
958 	__u32 count_modifiers;
959 
960 	/* Where in this blob the modifiers exist (in bytes) */
961 	__u32 modifiers_offset;
962 
963 	/* __u32 formats[] */
964 	/* struct drm_format_modifier modifiers[] */
965 };
966 
967 struct drm_format_modifier {
968 	/* Bitmask of formats in get_plane format list this info applies to. The
969 	 * offset allows a sliding window of which 64 formats (bits).
970 	 *
971 	 * Some examples:
972 	 * In today's world with < 65 formats, and formats 0, and 2 are
973 	 * supported
974 	 * 0x0000000000000005
975 	 *		  ^-offset = 0, formats = 5
976 	 *
977 	 * If the number formats grew to 128, and formats 98-102 are
978 	 * supported with the modifier:
979 	 *
980 	 * 0x0000007c00000000 0000000000000000
981 	 *		  ^
982 	 *		  |__offset = 64, formats = 0x7c00000000
983 	 *
984 	 */
985 	__u64 formats;
986 	__u32 offset;
987 	__u32 pad;
988 
989 	/* The modifier that applies to the >get_plane format list bitmask. */
990 	__u64 modifier;
991 };
992 
993 /**
994  * struct drm_mode_create_blob - Create New blob property
995  *
996  * Create a new 'blob' data property, copying length bytes from data pointer,
997  * and returning new blob ID.
998  */
999 struct drm_mode_create_blob {
1000 	/** @data: Pointer to data to copy. */
1001 	__u64 data;
1002 	/** @length: Length of data to copy. */
1003 	__u32 length;
1004 	/** @blob_id: Return: new property ID. */
1005 	__u32 blob_id;
1006 };
1007 
1008 /**
1009  * struct drm_mode_destroy_blob - Destroy user blob
1010  * @blob_id: blob_id to destroy
1011  *
1012  * Destroy a user-created blob property.
1013  *
1014  * User-space can release blobs as soon as they do not need to refer to them by
1015  * their blob object ID.  For instance, if you are using a MODE_ID blob in an
1016  * atomic commit and you will not make another commit re-using the same ID, you
1017  * can destroy the blob as soon as the commit has been issued, without waiting
1018  * for it to complete.
1019  */
1020 struct drm_mode_destroy_blob {
1021 	__u32 blob_id;
1022 };
1023 
1024 /**
1025  * struct drm_mode_create_lease - Create lease
1026  *
1027  * Lease mode resources, creating another drm_master.
1028  */
1029 struct drm_mode_create_lease {
1030 	/** @object_ids: Pointer to array of object ids (__u32) */
1031 	__u64 object_ids;
1032 	/** @object_count: Number of object ids */
1033 	__u32 object_count;
1034 	/** @flags: flags for new FD (O_CLOEXEC, etc) */
1035 	__u32 flags;
1036 
1037 	/** @lessee_id: Return: unique identifier for lessee. */
1038 	__u32 lessee_id;
1039 	/** @fd: Return: file descriptor to new drm_master file */
1040 	__u32 fd;
1041 };
1042 
1043 /**
1044  * struct drm_mode_list_lessees - List lessees
1045  *
1046  * List lesses from a drm_master.
1047  */
1048 struct drm_mode_list_lessees {
1049 	/**
1050 	 * @count_lessees: Number of lessees.
1051 	 *
1052 	 * On input, provides length of the array.
1053 	 * On output, provides total number. No
1054 	 * more than the input number will be written
1055 	 * back, so two calls can be used to get
1056 	 * the size and then the data.
1057 	 */
1058 	__u32 count_lessees;
1059 	/** @pad: Padding. */
1060 	__u32 pad;
1061 
1062 	/**
1063 	 * @lessees_ptr: Pointer to lessees.
1064 	 *
1065 	 * Pointer to __u64 array of lessee ids
1066 	 */
1067 	__u64 lessees_ptr;
1068 };
1069 
1070 /**
1071  * struct drm_mode_get_lease - Get Lease
1072  *
1073  * Get leased objects.
1074  */
1075 struct drm_mode_get_lease {
1076 	/**
1077 	 * @count_objects: Number of leased objects.
1078 	 *
1079 	 * On input, provides length of the array.
1080 	 * On output, provides total number. No
1081 	 * more than the input number will be written
1082 	 * back, so two calls can be used to get
1083 	 * the size and then the data.
1084 	 */
1085 	__u32 count_objects;
1086 	/** @pad: Padding. */
1087 	__u32 pad;
1088 
1089 	/**
1090 	 * @objects_ptr: Pointer to objects.
1091 	 *
1092 	 * Pointer to __u32 array of object ids.
1093 	 */
1094 	__u64 objects_ptr;
1095 };
1096 
1097 /**
1098  * struct drm_mode_revoke_lease - Revoke lease
1099  */
1100 struct drm_mode_revoke_lease {
1101 	/** @lessee_id: Unique ID of lessee */
1102 	__u32 lessee_id;
1103 };
1104 
1105 /**
1106  * struct drm_mode_rect - Two dimensional rectangle.
1107  * @x1: Horizontal starting coordinate (inclusive).
1108  * @y1: Vertical starting coordinate (inclusive).
1109  * @x2: Horizontal ending coordinate (exclusive).
1110  * @y2: Vertical ending coordinate (exclusive).
1111  *
1112  * With drm subsystem using struct drm_rect to manage rectangular area this
1113  * export it to user-space.
1114  *
1115  * Currently used by drm_mode_atomic blob property FB_DAMAGE_CLIPS.
1116  */
1117 struct drm_mode_rect {
1118 	__s32 x1;
1119 	__s32 y1;
1120 	__s32 x2;
1121 	__s32 y2;
1122 };
1123 
1124 #if defined(__cplusplus)
1125 }
1126 #endif
1127 
1128 #endif
1129