summaryrefslogtreecommitdiffstats
path: root/xf86drmMode.h
blob: 0848788799a36d73232a1edbb5cf05a09ba2cd13 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
/*
 * \file xf86drmMode.h
 * Header for DRM modesetting interface.
 *
 * \author Jakob Bornecrantz <wallbraker@gmail.com>
 *
 * \par Acknowledgements:
 * Feb 2007, Dave Airlie <airlied@linux.ie>
 */

/*
 * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
 * Copyright (c) 2007-2008 Dave Airlie <airlied@linux.ie>
 * Copyright (c) 2007-2008 Jakob Bornecrantz <wallbraker@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 *
 */

#ifndef _XF86DRMMODE_H_
#define _XF86DRMMODE_H_

#if defined(__cplusplus)
extern "C" {
#endif

#include <drm.h>
#include <drm_mode.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

/*
 * This is the interface for modesetting for drm.
 *
 * It aims to provide a randr1.2 compatible interface for modesettings in the
 * kernel, the interface is also meant to be used by libraries like EGL.
 *
 * More information can be found in randrproto.txt which can be found here:
 * http://gitweb.freedesktop.org/?p=xorg/proto/randrproto.git
 *
 * There are some major differences to be noted. Unlike the randr1.2 proto you
 * need to create the memory object of the framebuffer yourself with the ttm
 * buffer object interface. This object needs to be pinned.
 */

/*
 * Feature defines
 *
 * Just because these are defined doesn't mean that the kernel
 * can do that feature, its just for new code vs old libdrm.
 */
#define DRM_MODE_FEATURE_KMS		1
#define DRM_MODE_FEATURE_DIRTYFB	1


typedef struct _drmModeRes {

	int count_fbs;
	uint32_t *fbs;

	int count_crtcs;
	uint32_t *crtcs;

	int count_connectors;
	uint32_t *connectors;

	int count_encoders;
	uint32_t *encoders;

	uint32_t min_width, max_width;
	uint32_t min_height, max_height;
} drmModeRes, *drmModeResPtr;

typedef struct _drmModeModeInfo {
	uint32_t clock;
	uint16_t hdisplay, hsync_start, hsync_end, htotal, hskew;
	uint16_t vdisplay, vsync_start, vsync_end, vtotal, vscan;

	uint32_t vrefresh;

	uint32_t flags;
	uint32_t type;
	char name[DRM_DISPLAY_MODE_LEN];
} drmModeModeInfo, *drmModeModeInfoPtr;

typedef struct _drmModeFB {
	uint32_t fb_id;
	uint32_t width, height;
	uint32_t pitch;
	uint32_t bpp;
	uint32_t depth;
	/* driver specific handle */
	uint32_t handle;
} drmModeFB, *drmModeFBPtr;

typedef struct _drmModeFB2 {
	uint32_t fb_id;
	uint32_t width, height;
	uint32_t pixel_format; /* fourcc code from drm_fourcc.h */
	uint64_t modifier; /* applies to all buffers */
	uint32_t flags;

	/* per-plane GEM handle; may be duplicate entries for multiple planes */
	uint32_t handles[4];
	uint32_t pitches[4]; /* bytes */
	uint32_t offsets[4]; /* bytes */
} drmModeFB2, *drmModeFB2Ptr;

typedef struct drm_clip_rect drmModeClip, *drmModeClipPtr;

typedef struct _drmModePropertyBlob {
	uint32_t id;
	uint32_t length;
	void *data;
} drmModePropertyBlobRes, *drmModePropertyBlobPtr;

typedef struct _drmModeProperty {
	uint32_t prop_id;
	uint32_t flags;
	char name[DRM_PROP_NAME_LEN];
	int count_values;
	uint64_t *values; /* store the blob lengths */
	int count_enums;
	struct drm_mode_property_enum *enums;
	int count_blobs;
	uint32_t *blob_ids; /* store the blob IDs */
} drmModePropertyRes, *drmModePropertyPtr;

static inline uint32_t drmModeGetPropertyType(const drmModePropertyRes *prop)
{
	return prop->flags & (DRM_MODE_PROP_LEGACY_TYPE | DRM_MODE_PROP_EXTENDED_TYPE);
}

static inline int drm_property_type_is(const drmModePropertyPtr property,
		uint32_t type)
{
	return drmModeGetPropertyType(property) == type;
}

typedef struct _drmModeCrtc {
	uint32_t crtc_id;
	uint32_t buffer_id; /**< FB id to connect to 0 = disconnect */

	uint32_t x, y; /**< Position on the framebuffer */
	uint32_t width, height;
	int mode_valid;
	drmModeModeInfo mode;

	int gamma_size; /**< Number of gamma stops */

} drmModeCrtc, *drmModeCrtcPtr;

typedef struct _drmModeEncoder {
	uint32_t encoder_id;
	uint32_t encoder_type;
	uint32_t crtc_id;
	uint32_t possible_crtcs;
	uint32_t possible_clones;
} drmModeEncoder, *drmModeEncoderPtr;

/**
 * Describes the connector status.
 *
 * DRM_MODE_CONNECTED means that the connector has a sink plugged in.
 * DRM_MODE_DISCONNECTED means the contrary. DRM_MODE_UNKNOWNCONNECTION is used
 * when it could be either.
 *
 * User-space should first try to enable DRM_MODE_CONNECTED connectors and
 * ignore other connectors. If there are no DRM_MODE_CONNECTED connectors,
 * user-space should then try to probe and enable DRM_MODE_UNKNOWNCONNECTION
 * connectors.
 */
typedef enum {
	DRM_MODE_CONNECTED         = 1,
	DRM_MODE_DISCONNECTED      = 2,
	DRM_MODE_UNKNOWNCONNECTION = 3
} drmModeConnection;

typedef enum {
	DRM_MODE_SUBPIXEL_UNKNOWN        = 1,
	DRM_MODE_SUBPIXEL_HORIZONTAL_RGB = 2,
	DRM_MODE_SUBPIXEL_HORIZONTAL_BGR = 3,
	DRM_MODE_SUBPIXEL_VERTICAL_RGB   = 4,
	DRM_MODE_SUBPIXEL_VERTICAL_BGR   = 5,
	DRM_MODE_SUBPIXEL_NONE           = 6
} drmModeSubPixel;

typedef struct _drmModeConnector {
	uint32_t connector_id;
	uint32_t encoder_id; /**< Encoder currently connected to */
	uint32_t connector_type;
	uint32_t connector_type_id;
	drmModeConnection connection;
	uint32_t mmWidth, mmHeight; /**< HxW in millimeters */
	drmModeSubPixel subpixel;

	int count_modes;
	drmModeModeInfoPtr modes;

	int count_props;
	uint32_t *props; /**< List of property ids */
	uint64_t *prop_values; /**< List of property values */

	int count_encoders;
	uint32_t *encoders; /**< List of encoder ids */
} drmModeConnector, *drmModeConnectorPtr;

#define DRM_PLANE_TYPE_OVERLAY 0
#define DRM_PLANE_TYPE_PRIMARY 1
#define DRM_PLANE_TYPE_CURSOR  2

typedef struct _drmModeObjectProperties {
	uint32_t count_props;
	uint32_t *props;
	uint64_t *prop_values;
} drmModeObjectProperties, *drmModeObjectPropertiesPtr;

typedef struct _drmModeFormatModifierIterator {
	uint32_t fmt_idx, mod_idx;
	uint32_t fmt;
	uint64_t mod;
} drmModeFormatModifierIterator;

typedef struct _drmModePlane {
	uint32_t count_formats;
	uint32_t *formats;
	uint32_t plane_id;

	uint32_t crtc_id;
	uint32_t fb_id;

	uint32_t crtc_x, crtc_y;
	uint32_t x, y;

	uint32_t possible_crtcs;
	uint32_t gamma_size;
} drmModePlane, *drmModePlanePtr;

typedef struct _drmModePlaneRes {
	uint32_t count_planes;
	uint32_t *planes;
} drmModePlaneRes, *drmModePlaneResPtr;

extern void drmModeFreeModeInfo( drmModeModeInfoPtr ptr );
extern void drmModeFreeResources( drmModeResPtr ptr );
extern void drmModeFreeFB( drmModeFBPtr ptr );
extern void drmModeFreeFB2( drmModeFB2Ptr ptr );
extern void drmModeFreeCrtc( drmModeCrtcPtr ptr );
extern void drmModeFreeConnector( drmModeConnectorPtr ptr );
extern void drmModeFreeEncoder( drmModeEncoderPtr ptr );
extern void drmModeFreePlane( drmModePlanePtr ptr );
extern void drmModeFreePlaneResources(drmModePlaneResPtr ptr);

/**
 * Check whether the DRM node supports Kernel Mode-Setting.
 *
 * Returns 1 if suitable for KMS, 0 otherwise.
 */
extern int drmIsKMS(int fd);

/**
 * Retrieves all of the resources associated with a card.
 */
extern drmModeResPtr drmModeGetResources(int fd);

/*
 * FrameBuffer manipulation.
 */

/**
 * Retrieve information about framebuffer bufferId
 */
extern drmModeFBPtr drmModeGetFB(int fd, uint32_t bufferId);
extern drmModeFB2Ptr drmModeGetFB2(int fd, uint32_t bufferId);

/**
 * Creates a new framebuffer with an buffer object as its scanout buffer.
 */
extern int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
			uint8_t bpp, uint32_t pitch, uint32_t bo_handle,
			uint32_t *buf_id);
/* ...with a specific pixel format */
extern int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
			 uint32_t pixel_format, const uint32_t bo_handles[4],
			 const uint32_t pitches[4], const uint32_t offsets[4],
			 uint32_t *buf_id, uint32_t flags);

/* ...with format modifiers */
int drmModeAddFB2WithModifiers(int fd, uint32_t width, uint32_t height,
			       uint32_t pixel_format, const uint32_t bo_handles[4],
			       const uint32_t pitches[4], const uint32_t offsets[4],
			       const uint64_t modifier[4], uint32_t *buf_id,
				   uint32_t flags);

/**
 * Destroies the given framebuffer.
 */
extern int drmModeRmFB(int fd, uint32_t bufferId);

/**
 * Close a framebuffer.
 *
 * Same as drmModeRmFB(), except it doesn't implicitly disable planes and CRTCs.
 */
extern int drmModeCloseFB(int fd, uint32_t buffer_id);

/**
 * Mark a region of a framebuffer as dirty.
 */
extern int drmModeDirtyFB(int fd, uint32_t bufferId,
			  drmModeClipPtr clips, uint32_t num_clips);


/*
 * Crtc functions
 */

/**
 * Retrieve information about the ctrt crtcId
 */
extern drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId);

/**
 * Set the mode on a crtc crtcId with the given mode modeId.
 */
int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
                   uint32_t x, uint32_t y, uint32_t *connectors, int count,
		   drmModeModeInfoPtr mode);

/*
 * Cursor functions
 */

/**
 * Set the cursor on crtc
 */
int drmModeSetCursor(int fd, uint32_t crtcId, uint32_t bo_handle, uint32_t width, uint32_t height);

int drmModeSetCursor2(int fd, uint32_t crtcId, uint32_t bo_handle, uint32_t width, uint32_t height, int32_t hot_x, int32_t hot_y);
/**
 * Move the cursor on crtc
 */
int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y);

/**
 * Encoder functions
 */
drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id);

/*
 * Connector manipulation
 */

/**
 * Retrieve all information about the connector connectorId. This will do a
 * forced probe on the connector to retrieve remote information such as EDIDs
 * from the display device.
 */
extern drmModeConnectorPtr drmModeGetConnector(int fd,
					       uint32_t connectorId);

/**
 * Retrieve current information, i.e the currently active mode and encoder,
 * about the connector connectorId. This will not do any probing on the
 * connector or remote device, and only reports what is currently known.
 * For the complete set of modes and encoders associated with the connector
 * use drmModeGetConnector() which will do a probe to determine any display
 * link changes first.
 */
extern drmModeConnectorPtr drmModeGetConnectorCurrent(int fd,
						      uint32_t connector_id);

/**
 * Get a bitmask of CRTCs a connector is compatible with.
 *
 * The bits reference CRTC indices. If the n-th CRTC is compatible with the
 * connector, the n-th bit will be set. The indices are taken from the array
 * returned by drmModeGetResources(). The indices are different from the object
 * IDs.
 *
 * Zero is returned on error.
 */
extern uint32_t drmModeConnectorGetPossibleCrtcs(int fd,
                                                 const drmModeConnector *connector);

/**
 * Attaches the given mode to an connector.
 */
extern int drmModeAttachMode(int fd, uint32_t connectorId, drmModeModeInfoPtr mode_info);

/**
 * Detaches a mode from the connector
 * must be unused, by the given mode.
 */
extern int drmModeDetachMode(int fd, uint32_t connectorId, drmModeModeInfoPtr mode_info);

extern drmModePropertyPtr drmModeGetProperty(int fd, uint32_t propertyId);
extern void drmModeFreeProperty(drmModePropertyPtr ptr);

extern drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd, uint32_t blob_id);
extern bool drmModeFormatModifierBlobIterNext(const drmModePropertyBlobRes *blob,
					      drmModeFormatModifierIterator *iter);
extern void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr);
extern int drmModeConnectorSetProperty(int fd, uint32_t connector_id, uint32_t property_id,
				    uint64_t value);
extern int drmCheckModesettingSupported(const char *busid);

extern int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size,
			       const uint16_t *red, const uint16_t *green, const uint16_t *blue);
extern int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size,
			       uint16_t *red, uint16_t *green, uint16_t *blue);
extern int drmModePageFlip(int fd, uint32_t crtc_id, uint32_t fb_id,
			   uint32_t flags, void *user_data);
extern int drmModePageFlipTarget(int fd, uint32_t crtc_id, uint32_t fb_id,
				 uint32_t flags, void *user_data,
				 uint32_t target_vblank);

extern drmModePlaneResPtr drmModeGetPlaneResources(int fd);
extern drmModePlanePtr drmModeGetPlane(int fd, uint32_t plane_id);
extern int drmModeSetPlane(int fd, uint32_t plane_id, uint32_t crtc_id,
			   uint32_t fb_id, uint32_t flags,
			   int32_t crtc_x, int32_t crtc_y,
			   uint32_t crtc_w, uint32_t crtc_h,
			   uint32_t src_x, uint32_t src_y,
			   uint32_t src_w, uint32_t src_h);

extern drmModeObjectPropertiesPtr drmModeObjectGetProperties(int fd,
							uint32_t object_id,
							uint32_t object_type);
extern void drmModeFreeObjectProperties(drmModeObjectPropertiesPtr ptr);
extern int drmModeObjectSetProperty(int fd, uint32_t object_id,
				    uint32_t object_type, uint32_t property_id,
				    uint64_t value);


typedef struct _drmModeAtomicReq drmModeAtomicReq, *drmModeAtomicReqPtr;

extern drmModeAtomicReqPtr drmModeAtomicAlloc(void);
extern drmModeAtomicReqPtr drmModeAtomicDuplicate(const drmModeAtomicReqPtr req);
extern int drmModeAtomicMerge(drmModeAtomicReqPtr base,
			      const drmModeAtomicReqPtr augment);
extern void drmModeAtomicFree(drmModeAtomicReqPtr req);
extern int drmModeAtomicGetCursor(const drmModeAtomicReqPtr req);
extern void drmModeAtomicSetCursor(drmModeAtomicReqPtr req, int cursor);
extern int drmModeAtomicAddProperty(drmModeAtomicReqPtr req,
				    uint32_t object_id,
				    uint32_t property_id,
				    uint64_t value);
extern int drmModeAtomicCommit(int fd,
			       const drmModeAtomicReqPtr req,
			       uint32_t flags,
			       void *user_data);

extern int drmModeCreatePropertyBlob(int fd, const void *data, size_t size,
				     uint32_t *id);
extern int drmModeDestroyPropertyBlob(int fd, uint32_t id);

/*
 * DRM mode lease APIs. These create and manage new drm_masters with
 * access to a subset of the available DRM resources
 */

extern int drmModeCreateLease(int fd, const uint32_t *objects, int num_objects, int flags, uint32_t *lessee_id);

typedef struct drmModeLesseeList {
	uint32_t count;
	uint32_t lessees[];
} drmModeLesseeListRes, *drmModeLesseeListPtr;

extern drmModeLesseeListPtr drmModeListLessees(int fd);

typedef struct drmModeObjectList {
	uint32_t count;
	uint32_t objects[];
} drmModeObjectListRes, *drmModeObjectListPtr;

extern drmModeObjectListPtr drmModeGetLease(int fd);

extern int drmModeRevokeLease(int fd, uint32_t lessee_id);

/**
 * Get a string describing a connector type.
 *
 * NULL is returned if the connector type is unsupported. Callers should handle
 * this gracefully, e.g. by falling back to "Unknown" or printing the raw value.
 */
extern const char *
drmModeGetConnectorTypeName(uint32_t connector_type);

/**
 * Create a dumb buffer.
 *
 * Given a width, height and bits-per-pixel, the kernel will return a buffer
 * handle, pitch and size. The flags must be zero.
 *
 * Returns 0 on success, negative errno on error.
 */
extern int
drmModeCreateDumbBuffer(int fd, uint32_t width, uint32_t height, uint32_t bpp,
                        uint32_t flags, uint32_t *handle, uint32_t *pitch,
                        uint64_t *size);

/**
 * Destroy a dumb buffer.
 *
 * Returns 0 on success, negative errno on error.
 */
extern int
drmModeDestroyDumbBuffer(int fd, uint32_t handle);

/**
 * Prepare a dumb buffer for mapping.
 *
 * The kernel returns an offset which can be used as an argument to mmap(2) on
 * the DRM FD.
 *
 * Returns 0 on success, negative errno on error.
 */
extern int
drmModeMapDumbBuffer(int fd, uint32_t handle, uint64_t *offset);

#if defined(__cplusplus)
}
#endif

#endif