summaryrefslogtreecommitdiff
path: root/xf86drmMode.h
blob: 62304bb929b728fd1d21256bf6fa6aeb2fccf87a (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
/*
 * \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.
 *
 */

#include <drm.h>

/*
 * This is the interface for modesetting for drm.
 *
 * In order to use this interface you must include either <stdint.h> or another
 * header defining uint32_t, int32_t and uint16_t.
 *
 * It aims to provide a randr1.2 compatible interface for modesettings in the
 * kernel, the interface is also ment 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 diffrences 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.
 */

/*
 * If we pickup an old version of drm.h which doesn't include drm_mode.h
 * we should redefine defines. This is so that builds doesn't breaks with
 * new libdrm on old kernels.
 */
#ifndef _DRM_MODE_H

#define DRM_DISPLAY_INFO_LEN    32
#define DRM_CONNECTOR_NAME_LEN  32
#define DRM_DISPLAY_MODE_LEN    32
#define DRM_PROP_NAME_LEN       32

#define DRM_MODE_TYPE_BUILTIN   (1<<0)
#define DRM_MODE_TYPE_CLOCK_C   ((1<<1) | DRM_MODE_TYPE_BUILTIN)
#define DRM_MODE_TYPE_CRTC_C    ((1<<2) | DRM_MODE_TYPE_BUILTIN)
#define DRM_MODE_TYPE_PREFERRED (1<<3)
#define DRM_MODE_TYPE_DEFAULT   (1<<4)
#define DRM_MODE_TYPE_USERDEF   (1<<5)
#define DRM_MODE_TYPE_DRIVER    (1<<6)

/* Video mode flags */
/* bit compatible with the xorg definitions. */
#define DRM_MODE_FLAG_PHSYNC    (1<<0)
#define DRM_MODE_FLAG_NHSYNC    (1<<1)
#define DRM_MODE_FLAG_PVSYNC    (1<<2)
#define DRM_MODE_FLAG_NVSYNC    (1<<3)
#define DRM_MODE_FLAG_INTERLACE (1<<4)
#define DRM_MODE_FLAG_DBLSCAN   (1<<5)
#define DRM_MODE_FLAG_CSYNC     (1<<6)
#define DRM_MODE_FLAG_PCSYNC    (1<<7)
#define DRM_MODE_FLAG_NCSYNC    (1<<8)
#define DRM_MODE_FLAG_HSKEW     (1<<9) /* hskew provided */
#define DRM_MODE_FLAG_BCAST     (1<<10)
#define DRM_MODE_FLAG_PIXMUX    (1<<11)
#define DRM_MODE_FLAG_DBLCLK    (1<<12)
#define DRM_MODE_FLAG_CLKDIV2   (1<<13)

/* DPMS flags */
/* bit compatible with the xorg definitions. */
#define DRM_MODE_DPMS_ON        0
#define DRM_MODE_DPMS_STANDBY   1
#define DRM_MODE_DPMS_SUSPEND   2
#define DRM_MODE_DPMS_OFF       3

/* Scaling mode options */
#define DRM_MODE_SCALE_NON_GPU          0
#define DRM_MODE_SCALE_FULLSCREEN       1
#define DRM_MODE_SCALE_NO_SCALE         2
#define DRM_MODE_SCALE_ASPECT           3

/* Dithering mode options */
#define DRM_MODE_DITHERING_OFF  0
#define DRM_MODE_DITHERING_ON   1

#define DRM_MODE_ENCODER_NONE   0
#define DRM_MODE_ENCODER_DAC    1
#define DRM_MODE_ENCODER_TMDS   2
#define DRM_MODE_ENCODER_LVDS   3
#define DRM_MODE_ENCODER_TVDAC  4

#define DRM_MODE_SUBCONNECTOR_Automatic 0
#define DRM_MODE_SUBCONNECTOR_Unknown   0
#define DRM_MODE_SUBCONNECTOR_DVID      3
#define DRM_MODE_SUBCONNECTOR_DVIA      4
#define DRM_MODE_SUBCONNECTOR_Composite 5
#define DRM_MODE_SUBCONNECTOR_SVIDEO    6
#define DRM_MODE_SUBCONNECTOR_Component 8

#define DRM_MODE_CONNECTOR_Unknown      0
#define DRM_MODE_CONNECTOR_VGA          1
#define DRM_MODE_CONNECTOR_DVII         2
#define DRM_MODE_CONNECTOR_DVID         3
#define DRM_MODE_CONNECTOR_DVIA         4
#define DRM_MODE_CONNECTOR_Composite    5
#define DRM_MODE_CONNECTOR_SVIDEO       6
#define DRM_MODE_CONNECTOR_LVDS         7
#define DRM_MODE_CONNECTOR_Component    8
#define DRM_MODE_CONNECTOR_9PinDIN      9
#define DRM_MODE_CONNECTOR_DisplayPort  10
#define DRM_MODE_CONNECTOR_HDMIA        11
#define DRM_MODE_CONNECTOR_HDMIB        12

#define DRM_MODE_PROP_PENDING   (1<<0)
#define DRM_MODE_PROP_RANGE     (1<<1)
#define DRM_MODE_PROP_IMMUTABLE (1<<2)
#define DRM_MODE_PROP_ENUM      (1<<3) /* enumerated type with text strings */
#define DRM_MODE_PROP_BLOB      (1<<4)

#define DRM_MODE_CURSOR_BO      (1<<0)
#define DRM_MODE_CURSOR_MOVE    (1<<1)

#endif /* _DRM_MODE_H */

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; /* vertical refresh * 1000 */

	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 _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;

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;

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;



extern void drmModeFreeModeInfo( drmModeModeInfoPtr ptr );
extern void drmModeFreeResources( drmModeResPtr ptr );
extern void drmModeFreeFB( drmModeFBPtr ptr );
extern void drmModeFreeCrtc( drmModeCrtcPtr ptr );
extern void drmModeFreeConnector( drmModeConnectorPtr ptr );
extern void drmModeFreeEncoder( drmModeEncoderPtr ptr );

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

/*
 * FrameBuffer manipulation.
 */

/**
 * Retrive information about framebuffer bufferId
 */
extern drmModeFBPtr drmModeGetFB(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);
/**
 * Destroies the given framebuffer.
 */
extern int drmModeRmFB(int fd, uint32_t bufferId);

/*
 * Crtc functions
 */

/**
 * Retrive 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);

/**
 * 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
 */

/**
 * Retrive information about the connector connectorId.
 */
extern drmModeConnectorPtr drmModeGetConnector(int fd,
		uint32_t connectorId);

/**
 * 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 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,
			       uint16_t *red, uint16_t *green, uint16_t *blue);
extern int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size,
			       uint16_t *red, uint16_t *green, uint16_t *blue);