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   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)
  33extern "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 */
 242struct 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
 262struct 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
 277struct 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 */
 296struct 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
 315struct 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
 328struct 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
 343struct 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. */
 355enum 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 and the DRM client is the current
 417 * DRM master, the kernel will perform a forced probe on the connector to
 418 * refresh the connector status, modes and EDID. A forced-probe can be slow,
 419 * might cause flickering and the ioctl will block.
 420 *
 421 * User-space needs to force-probe connectors to ensure their metadata is
 422 * up-to-date at startup and after receiving a hot-plug event. User-space
 423 * may perform a forced-probe when the user explicitly requests it. User-space
 424 * shouldn't perform a forced-probe in other situations.
 425 */
 426struct drm_mode_get_connector {
 427	/** @encoders_ptr: Pointer to ``__u32`` array of object IDs. */
 428	__u64 encoders_ptr;
 429	/** @modes_ptr: Pointer to struct drm_mode_modeinfo array. */
 430	__u64 modes_ptr;
 431	/** @props_ptr: Pointer to ``__u32`` array of property IDs. */
 432	__u64 props_ptr;
 433	/** @prop_values_ptr: Pointer to ``__u64`` array of property values. */
 434	__u64 prop_values_ptr;
 435
 436	/** @count_modes: Number of modes. */
 437	__u32 count_modes;
 438	/** @count_props: Number of properties. */
 439	__u32 count_props;
 440	/** @count_encoders: Number of encoders. */
 441	__u32 count_encoders;
 442
 443	/** @encoder_id: Object ID of the current encoder. */
 444	__u32 encoder_id;
 445	/** @connector_id: Object ID of the connector. */
 446	__u32 connector_id;
 447	/**
 448	 * @connector_type: Type of the connector.
 449	 *
 450	 * See DRM_MODE_CONNECTOR_* defines.
 451	 */
 452	__u32 connector_type;
 453	/**
 454	 * @connector_type_id: Type-specific connector number.
 455	 *
 456	 * This is not an object ID. This is a per-type connector number. Each
 457	 * (type, type_id) combination is unique across all connectors of a DRM
 458	 * device.
 459	 */
 460	__u32 connector_type_id;
 461
 462	/**
 463	 * @connection: Status of the connector.
 464	 *
 465	 * See enum drm_connector_status.
 466	 */
 467	__u32 connection;
 468	/** @mm_width: Width of the connected sink in millimeters. */
 469	__u32 mm_width;
 470	/** @mm_height: Height of the connected sink in millimeters. */
 471	__u32 mm_height;
 472	/**
 473	 * @subpixel: Subpixel order of the connected sink.
 474	 *
 475	 * See enum subpixel_order.
 476	 */
 477	__u32 subpixel;
 478
 479	/** @pad: Padding, must be zero. */
 480	__u32 pad;
 481};
 482
 483#define DRM_MODE_PROP_PENDING	(1<<0) /* deprecated, do not use */
 484#define DRM_MODE_PROP_RANGE	(1<<1)
 485#define DRM_MODE_PROP_IMMUTABLE	(1<<2)
 486#define DRM_MODE_PROP_ENUM	(1<<3) /* enumerated type with text strings */
 487#define DRM_MODE_PROP_BLOB	(1<<4)
 488#define DRM_MODE_PROP_BITMASK	(1<<5) /* bitmask of enumerated types */
 489
 490/* non-extended types: legacy bitmask, one bit per type: */
 491#define DRM_MODE_PROP_LEGACY_TYPE  ( \
 492		DRM_MODE_PROP_RANGE | \
 493		DRM_MODE_PROP_ENUM | \
 494		DRM_MODE_PROP_BLOB | \
 495		DRM_MODE_PROP_BITMASK)
 496
 497/* extended-types: rather than continue to consume a bit per type,
 498 * grab a chunk of the bits to use as integer type id.
 499 */
 500#define DRM_MODE_PROP_EXTENDED_TYPE	0x0000ffc0
 501#define DRM_MODE_PROP_TYPE(n)		((n) << 6)
 502#define DRM_MODE_PROP_OBJECT		DRM_MODE_PROP_TYPE(1)
 503#define DRM_MODE_PROP_SIGNED_RANGE	DRM_MODE_PROP_TYPE(2)
 504
 505/* the PROP_ATOMIC flag is used to hide properties from userspace that
 506 * is not aware of atomic properties.  This is mostly to work around
 507 * older userspace (DDX drivers) that read/write each prop they find,
 508 * witout being aware that this could be triggering a lengthy modeset.
 509 */
 510#define DRM_MODE_PROP_ATOMIC        0x80000000
 511
 512struct drm_mode_property_enum {
 513	__u64 value;
 514	char name[DRM_PROP_NAME_LEN];
 515};
 516
 517struct drm_mode_get_property {
 518	__u64 values_ptr; /* values and blob lengths */
 519	__u64 enum_blob_ptr; /* enum and blob id ptrs */
 520
 521	__u32 prop_id;
 522	__u32 flags;
 523	char name[DRM_PROP_NAME_LEN];
 524
 525	__u32 count_values;
 526	/* This is only used to count enum values, not blobs. The _blobs is
 527	 * simply because of a historical reason, i.e. backwards compat. */
 528	__u32 count_enum_blobs;
 529};
 530
 531struct drm_mode_connector_set_property {
 532	__u64 value;
 533	__u32 prop_id;
 534	__u32 connector_id;
 535};
 536
 537#define DRM_MODE_OBJECT_CRTC 0xcccccccc
 538#define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
 539#define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
 540#define DRM_MODE_OBJECT_MODE 0xdededede
 541#define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
 542#define DRM_MODE_OBJECT_FB 0xfbfbfbfb
 543#define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
 544#define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
 545#define DRM_MODE_OBJECT_ANY 0
 546
 547struct drm_mode_obj_get_properties {
 548	__u64 props_ptr;
 549	__u64 prop_values_ptr;
 550	__u32 count_props;
 551	__u32 obj_id;
 552	__u32 obj_type;
 553};
 554
 555struct drm_mode_obj_set_property {
 556	__u64 value;
 557	__u32 prop_id;
 558	__u32 obj_id;
 559	__u32 obj_type;
 560};
 561
 562struct drm_mode_get_blob {
 563	__u32 blob_id;
 564	__u32 length;
 565	__u64 data;
 566};
 567
 568struct drm_mode_fb_cmd {
 569	__u32 fb_id;
 570	__u32 width;
 571	__u32 height;
 572	__u32 pitch;
 573	__u32 bpp;
 574	__u32 depth;
 575	/* driver specific handle */
 576	__u32 handle;
 577};
 578
 579#define DRM_MODE_FB_INTERLACED	(1<<0) /* for interlaced framebuffers */
 580#define DRM_MODE_FB_MODIFIERS	(1<<1) /* enables ->modifer[] */
 581
 582struct drm_mode_fb_cmd2 {
 583	__u32 fb_id;
 584	__u32 width;
 585	__u32 height;
 586	__u32 pixel_format; /* fourcc code from drm_fourcc.h */
 587	__u32 flags; /* see above flags */
 588
 589	/*
 590	 * In case of planar formats, this ioctl allows up to 4
 591	 * buffer objects with offsets and pitches per plane.
 592	 * The pitch and offset order is dictated by the fourcc,
 593	 * e.g. NV12 (https://fourcc.org/yuv.php#NV12) is described as:
 594	 *
 595	 *   YUV 4:2:0 image with a plane of 8 bit Y samples
 596	 *   followed by an interleaved U/V plane containing
 597	 *   8 bit 2x2 subsampled colour difference samples.
 598	 *
 599	 * So it would consist of Y as offsets[0] and UV as
 600	 * offsets[1].  Note that offsets[0] will generally
 601	 * be 0 (but this is not required).
 602	 *
 603	 * To accommodate tiled, compressed, etc formats, a
 604	 * modifier can be specified.  The default value of zero
 605	 * indicates "native" format as specified by the fourcc.
 606	 * Vendor specific modifier token.  Note that even though
 607	 * it looks like we have a modifier per-plane, we in fact
 608	 * do not. The modifier for each plane must be identical.
 609	 * Thus all combinations of different data layouts for
 610	 * multi plane formats must be enumerated as separate
 611	 * modifiers.
 612	 */
 613	__u32 handles[4];
 614	__u32 pitches[4]; /* pitch for each plane */
 615	__u32 offsets[4]; /* offset of each plane */
 616	__u64 modifier[4]; /* ie, tiling, compress */
 617};
 618
 619#define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01
 620#define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02
 621#define DRM_MODE_FB_DIRTY_FLAGS         0x03
 622
 623#define DRM_MODE_FB_DIRTY_MAX_CLIPS     256
 624
 625/*
 626 * Mark a region of a framebuffer as dirty.
 627 *
 628 * Some hardware does not automatically update display contents
 629 * as a hardware or software draw to a framebuffer. This ioctl
 630 * allows userspace to tell the kernel and the hardware what
 631 * regions of the framebuffer have changed.
 632 *
 633 * The kernel or hardware is free to update more then just the
 634 * region specified by the clip rects. The kernel or hardware
 635 * may also delay and/or coalesce several calls to dirty into a
 636 * single update.
 637 *
 638 * Userspace may annotate the updates, the annotates are a
 639 * promise made by the caller that the change is either a copy
 640 * of pixels or a fill of a single color in the region specified.
 641 *
 642 * If the DRM_MODE_FB_DIRTY_ANNOTATE_COPY flag is given then
 643 * the number of updated regions are half of num_clips given,
 644 * where the clip rects are paired in src and dst. The width and
 645 * height of each one of the pairs must match.
 646 *
 647 * If the DRM_MODE_FB_DIRTY_ANNOTATE_FILL flag is given the caller
 648 * promises that the region specified of the clip rects is filled
 649 * completely with a single color as given in the color argument.
 650 */
 651
 652struct drm_mode_fb_dirty_cmd {
 653	__u32 fb_id;
 654	__u32 flags;
 655	__u32 color;
 656	__u32 num_clips;
 657	__u64 clips_ptr;
 658};
 659
 660struct drm_mode_mode_cmd {
 661	__u32 connector_id;
 662	struct drm_mode_modeinfo mode;
 663};
 664
 665#define DRM_MODE_CURSOR_BO	0x01
 666#define DRM_MODE_CURSOR_MOVE	0x02
 667#define DRM_MODE_CURSOR_FLAGS	0x03
 668
 669/*
 670 * depending on the value in flags different members are used.
 671 *
 672 * CURSOR_BO uses
 673 *    crtc_id
 674 *    width
 675 *    height
 676 *    handle - if 0 turns the cursor off
 677 *
 678 * CURSOR_MOVE uses
 679 *    crtc_id
 680 *    x
 681 *    y
 682 */
 683struct drm_mode_cursor {
 684	__u32 flags;
 685	__u32 crtc_id;
 686	__s32 x;
 687	__s32 y;
 688	__u32 width;
 689	__u32 height;
 690	/* driver specific handle */
 691	__u32 handle;
 692};
 693
 694struct drm_mode_cursor2 {
 695	__u32 flags;
 696	__u32 crtc_id;
 697	__s32 x;
 698	__s32 y;
 699	__u32 width;
 700	__u32 height;
 701	/* driver specific handle */
 702	__u32 handle;
 703	__s32 hot_x;
 704	__s32 hot_y;
 705};
 706
 707struct drm_mode_crtc_lut {
 708	__u32 crtc_id;
 709	__u32 gamma_size;
 710
 711	/* pointers to arrays */
 712	__u64 red;
 713	__u64 green;
 714	__u64 blue;
 715};
 716
 717struct drm_color_ctm {
 718	/*
 719	 * Conversion matrix in S31.32 sign-magnitude
 720	 * (not two's complement!) format.
 721	 */
 722	__u64 matrix[9];
 723};
 724
 725struct drm_color_lut {
 726	/*
 727	 * Values are mapped linearly to 0.0 - 1.0 range, with 0x0 == 0.0 and
 728	 * 0xffff == 1.0.
 729	 */
 730	__u16 red;
 731	__u16 green;
 732	__u16 blue;
 733	__u16 reserved;
 734};
 735
 736/**
 737 * struct hdr_metadata_infoframe - HDR Metadata Infoframe Data.
 738 *
 739 * HDR Metadata Infoframe as per CTA 861.G spec. This is expected
 740 * to match exactly with the spec.
 741 *
 742 * Userspace is expected to pass the metadata information as per
 743 * the format described in this structure.
 744 */
 745struct hdr_metadata_infoframe {
 746	/**
 747	 * @eotf: Electro-Optical Transfer Function (EOTF)
 748	 * used in the stream.
 749	 */
 750	__u8 eotf;
 751	/**
 752	 * @metadata_type: Static_Metadata_Descriptor_ID.
 753	 */
 754	__u8 metadata_type;
 755	/**
 756	 * @display_primaries: Color Primaries of the Data.
 757	 * These are coded as unsigned 16-bit values in units of
 758	 * 0.00002, where 0x0000 represents zero and 0xC350
 759	 * represents 1.0000.
 760	 * @display_primaries.x: X cordinate of color primary.
 761	 * @display_primaries.y: Y cordinate of color primary.
 762	 */
 763	struct {
 764		__u16 x, y;
 765		} display_primaries[3];
 766	/**
 767	 * @white_point: White Point of Colorspace Data.
 768	 * These are coded as unsigned 16-bit values in units of
 769	 * 0.00002, where 0x0000 represents zero and 0xC350
 770	 * represents 1.0000.
 771	 * @white_point.x: X cordinate of whitepoint of color primary.
 772	 * @white_point.y: Y cordinate of whitepoint of color primary.
 773	 */
 774	struct {
 775		__u16 x, y;
 776		} white_point;
 777	/**
 778	 * @max_display_mastering_luminance: Max Mastering Display Luminance.
 779	 * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
 780	 * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
 781	 */
 782	__u16 max_display_mastering_luminance;
 783	/**
 784	 * @min_display_mastering_luminance: Min Mastering Display Luminance.
 785	 * This value is coded as an unsigned 16-bit value in units of
 786	 * 0.0001 cd/m2, where 0x0001 represents 0.0001 cd/m2 and 0xFFFF
 787	 * represents 6.5535 cd/m2.
 788	 */
 789	__u16 min_display_mastering_luminance;
 790	/**
 791	 * @max_cll: Max Content Light Level.
 792	 * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
 793	 * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
 794	 */
 795	__u16 max_cll;
 796	/**
 797	 * @max_fall: Max Frame Average Light Level.
 798	 * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
 799	 * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
 800	 */
 801	__u16 max_fall;
 802};
 803
 804/**
 805 * struct hdr_output_metadata - HDR output metadata
 806 *
 807 * Metadata Information to be passed from userspace
 808 */
 809struct hdr_output_metadata {
 810	/**
 811	 * @metadata_type: Static_Metadata_Descriptor_ID.
 812	 */
 813	__u32 metadata_type;
 814	/**
 815	 * @hdmi_metadata_type1: HDR Metadata Infoframe.
 816	 */
 817	union {
 818		struct hdr_metadata_infoframe hdmi_metadata_type1;
 819	};
 820};
 821
 822#define DRM_MODE_PAGE_FLIP_EVENT 0x01
 823#define DRM_MODE_PAGE_FLIP_ASYNC 0x02
 824#define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4
 825#define DRM_MODE_PAGE_FLIP_TARGET_RELATIVE 0x8
 826#define DRM_MODE_PAGE_FLIP_TARGET (DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE | \
 827				   DRM_MODE_PAGE_FLIP_TARGET_RELATIVE)
 828#define DRM_MODE_PAGE_FLIP_FLAGS (DRM_MODE_PAGE_FLIP_EVENT | \
 829				  DRM_MODE_PAGE_FLIP_ASYNC | \
 830				  DRM_MODE_PAGE_FLIP_TARGET)
 831
 832/*
 833 * Request a page flip on the specified crtc.
 834 *
 835 * This ioctl will ask KMS to schedule a page flip for the specified
 836 * crtc.  Once any pending rendering targeting the specified fb (as of
 837 * ioctl time) has completed, the crtc will be reprogrammed to display
 838 * that fb after the next vertical refresh.  The ioctl returns
 839 * immediately, but subsequent rendering to the current fb will block
 840 * in the execbuffer ioctl until the page flip happens.  If a page
 841 * flip is already pending as the ioctl is called, EBUSY will be
 842 * returned.
 843 *
 844 * Flag DRM_MODE_PAGE_FLIP_EVENT requests that drm sends back a vblank
 845 * event (see drm.h: struct drm_event_vblank) when the page flip is
 846 * done.  The user_data field passed in with this ioctl will be
 847 * returned as the user_data field in the vblank event struct.
 848 *
 849 * Flag DRM_MODE_PAGE_FLIP_ASYNC requests that the flip happen
 850 * 'as soon as possible', meaning that it not delay waiting for vblank.
 851 * This may cause tearing on the screen.
 852 *
 853 * The reserved field must be zero.
 854 */
 855
 856struct drm_mode_crtc_page_flip {
 857	__u32 crtc_id;
 858	__u32 fb_id;
 859	__u32 flags;
 860	__u32 reserved;
 861	__u64 user_data;
 862};
 863
 864/*
 865 * Request a page flip on the specified crtc.
 866 *
 867 * Same as struct drm_mode_crtc_page_flip, but supports new flags and
 868 * re-purposes the reserved field:
 869 *
 870 * The sequence field must be zero unless either of the
 871 * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is specified. When
 872 * the ABSOLUTE flag is specified, the sequence field denotes the absolute
 873 * vblank sequence when the flip should take effect. When the RELATIVE
 874 * flag is specified, the sequence field denotes the relative (to the
 875 * current one when the ioctl is called) vblank sequence when the flip
 876 * should take effect. NOTE: DRM_IOCTL_WAIT_VBLANK must still be used to
 877 * make sure the vblank sequence before the target one has passed before
 878 * calling this ioctl. The purpose of the
 879 * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is merely to clarify
 880 * the target for when code dealing with a page flip runs during a
 881 * vertical blank period.
 882 */
 883
 884struct drm_mode_crtc_page_flip_target {
 885	__u32 crtc_id;
 886	__u32 fb_id;
 887	__u32 flags;
 888	__u32 sequence;
 889	__u64 user_data;
 890};
 891
 892/* create a dumb scanout buffer */
 893struct drm_mode_create_dumb {
 894	__u32 height;
 895	__u32 width;
 896	__u32 bpp;
 897	__u32 flags;
 898	/* handle, pitch, size will be returned */
 899	__u32 handle;
 900	__u32 pitch;
 901	__u64 size;
 902};
 903
 904/* set up for mmap of a dumb scanout buffer */
 905struct drm_mode_map_dumb {
 906	/** Handle for the object being mapped. */
 907	__u32 handle;
 908	__u32 pad;
 909	/**
 910	 * Fake offset to use for subsequent mmap call
 911	 *
 912	 * This is a fixed-size type for 32/64 compatibility.
 913	 */
 914	__u64 offset;
 915};
 916
 917struct drm_mode_destroy_dumb {
 918	__u32 handle;
 919};
 920
 921/* page-flip flags are valid, plus: */
 922#define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
 923#define DRM_MODE_ATOMIC_NONBLOCK  0x0200
 924#define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400
 925
 926#define DRM_MODE_ATOMIC_FLAGS (\
 927		DRM_MODE_PAGE_FLIP_EVENT |\
 928		DRM_MODE_PAGE_FLIP_ASYNC |\
 929		DRM_MODE_ATOMIC_TEST_ONLY |\
 930		DRM_MODE_ATOMIC_NONBLOCK |\
 931		DRM_MODE_ATOMIC_ALLOW_MODESET)
 932
 933struct drm_mode_atomic {
 934	__u32 flags;
 935	__u32 count_objs;
 936	__u64 objs_ptr;
 937	__u64 count_props_ptr;
 938	__u64 props_ptr;
 939	__u64 prop_values_ptr;
 940	__u64 reserved;
 941	__u64 user_data;
 942};
 943
 944struct drm_format_modifier_blob {
 945#define FORMAT_BLOB_CURRENT 1
 946	/* Version of this blob format */
 947	__u32 version;
 948
 949	/* Flags */
 950	__u32 flags;
 951
 952	/* Number of fourcc formats supported */
 953	__u32 count_formats;
 954
 955	/* Where in this blob the formats exist (in bytes) */
 956	__u32 formats_offset;
 957
 958	/* Number of drm_format_modifiers */
 959	__u32 count_modifiers;
 960
 961	/* Where in this blob the modifiers exist (in bytes) */
 962	__u32 modifiers_offset;
 963
 964	/* __u32 formats[] */
 965	/* struct drm_format_modifier modifiers[] */
 966};
 967
 968struct drm_format_modifier {
 969	/* Bitmask of formats in get_plane format list this info applies to. The
 970	 * offset allows a sliding window of which 64 formats (bits).
 971	 *
 972	 * Some examples:
 973	 * In today's world with < 65 formats, and formats 0, and 2 are
 974	 * supported
 975	 * 0x0000000000000005
 976	 *		  ^-offset = 0, formats = 5
 977	 *
 978	 * If the number formats grew to 128, and formats 98-102 are
 979	 * supported with the modifier:
 980	 *
 981	 * 0x0000007c00000000 0000000000000000
 982	 *		  ^
 983	 *		  |__offset = 64, formats = 0x7c00000000
 984	 *
 985	 */
 986	__u64 formats;
 987	__u32 offset;
 988	__u32 pad;
 989
 990	/* The modifier that applies to the >get_plane format list bitmask. */
 991	__u64 modifier;
 992};
 993
 994/**
 995 * struct drm_mode_create_blob - Create New blob property
 996 *
 997 * Create a new 'blob' data property, copying length bytes from data pointer,
 998 * and returning new blob ID.
 999 */
1000struct drm_mode_create_blob {
1001	/** @data: Pointer to data to copy. */
1002	__u64 data;
1003	/** @length: Length of data to copy. */
1004	__u32 length;
1005	/** @blob_id: Return: new property ID. */
1006	__u32 blob_id;
1007};
1008
1009/**
1010 * struct drm_mode_destroy_blob - Destroy user blob
1011 * @blob_id: blob_id to destroy
1012 *
1013 * Destroy a user-created blob property.
1014 *
1015 * User-space can release blobs as soon as they do not need to refer to them by
1016 * their blob object ID.  For instance, if you are using a MODE_ID blob in an
1017 * atomic commit and you will not make another commit re-using the same ID, you
1018 * can destroy the blob as soon as the commit has been issued, without waiting
1019 * for it to complete.
1020 */
1021struct drm_mode_destroy_blob {
1022	__u32 blob_id;
1023};
1024
1025/**
1026 * struct drm_mode_create_lease - Create lease
1027 *
1028 * Lease mode resources, creating another drm_master.
1029 */
1030struct drm_mode_create_lease {
1031	/** @object_ids: Pointer to array of object ids (__u32) */
1032	__u64 object_ids;
1033	/** @object_count: Number of object ids */
1034	__u32 object_count;
1035	/** @flags: flags for new FD (O_CLOEXEC, etc) */
1036	__u32 flags;
1037
1038	/** @lessee_id: Return: unique identifier for lessee. */
1039	__u32 lessee_id;
1040	/** @fd: Return: file descriptor to new drm_master file */
1041	__u32 fd;
1042};
1043
1044/**
1045 * struct drm_mode_list_lessees - List lessees
1046 *
1047 * List lesses from a drm_master.
1048 */
1049struct drm_mode_list_lessees {
1050	/**
1051	 * @count_lessees: Number of lessees.
1052	 *
1053	 * On input, provides length of the array.
1054	 * On output, provides total number. No
1055	 * more than the input number will be written
1056	 * back, so two calls can be used to get
1057	 * the size and then the data.
1058	 */
1059	__u32 count_lessees;
1060	/** @pad: Padding. */
1061	__u32 pad;
1062
1063	/**
1064	 * @lessees_ptr: Pointer to lessees.
1065	 *
1066	 * Pointer to __u64 array of lessee ids
1067	 */
1068	__u64 lessees_ptr;
1069};
1070
1071/**
1072 * struct drm_mode_get_lease - Get Lease
1073 *
1074 * Get leased objects.
1075 */
1076struct drm_mode_get_lease {
1077	/**
1078	 * @count_objects: Number of leased objects.
1079	 *
1080	 * On input, provides length of the array.
1081	 * On output, provides total number. No
1082	 * more than the input number will be written
1083	 * back, so two calls can be used to get
1084	 * the size and then the data.
1085	 */
1086	__u32 count_objects;
1087	/** @pad: Padding. */
1088	__u32 pad;
1089
1090	/**
1091	 * @objects_ptr: Pointer to objects.
1092	 *
1093	 * Pointer to __u32 array of object ids.
1094	 */
1095	__u64 objects_ptr;
1096};
1097
1098/**
1099 * struct drm_mode_revoke_lease - Revoke lease
1100 */
1101struct drm_mode_revoke_lease {
1102	/** @lessee_id: Unique ID of lessee */
1103	__u32 lessee_id;
1104};
1105
1106/**
1107 * struct drm_mode_rect - Two dimensional rectangle.
1108 * @x1: Horizontal starting coordinate (inclusive).
1109 * @y1: Vertical starting coordinate (inclusive).
1110 * @x2: Horizontal ending coordinate (exclusive).
1111 * @y2: Vertical ending coordinate (exclusive).
1112 *
1113 * With drm subsystem using struct drm_rect to manage rectangular area this
1114 * export it to user-space.
1115 *
1116 * Currently used by drm_mode_atomic blob property FB_DAMAGE_CLIPS.
1117 */
1118struct drm_mode_rect {
1119	__s32 x1;
1120	__s32 y1;
1121	__s32 x2;
1122	__s32 y2;
1123};
1124
1125#if defined(__cplusplus)
1126}
1127#endif
1128
1129#endif