xf86drmMode.c

   1 /*
   2  * \file xf86drmMode.c
   3  * Header for DRM modesetting interface.
   4  *
   5  * \author Jakob Bornecrantz <wallbraker@gmail.com>
   6  *
   7  * \par Acknowledgements:
   8  * Feb 2007, Dave Airlie <airlied@linux.ie>
   9  */
  10
  11 /*
  12  * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
  13  * Copyright (c) 2007-2008 Dave Airlie <airlied@linux.ie>
  14  * Copyright (c) 2007-2008 Jakob Bornecrantz <wallbraker@gmail.com>
  15  *
  16  * Permission is hereby granted, free of charge, to any person obtaining a
  17  * copy of this software and associated documentation files (the "Software"),
  18  * to deal in the Software without restriction, including without limitation
  19  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  20  * and/or sell copies of the Software, and to permit persons to whom the
  21  * Software is furnished to do so, subject to the following conditions:
  22  *
  23  * The above copyright notice and this permission notice shall be included in
  24  * all copies or substantial portions of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  27  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  28  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  29  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  30  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  31  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  32  * IN THE SOFTWARE.
  33  *
  34  */
  35
  36 /*
  37  * TODO the types we are after are defined in diffrent headers on diffrent
  38  * platforms find which headers to include to get uint32_t
  39  */
  40
  41 #ifdef HAVE_CONFIG_H
  42 #include "config.h"
  43 #endif
  44
  45 #include <limits.h>
  46 #include <stdint.h>
  47 #include <stdlib.h>
  48 #include <sys/ioctl.h>
  49 #include <stdio.h>
  50 #include <stdbool.h>
  51
  52 #include "xf86drmMode.h"
  53 #include "xf86drm.h"
  54 #include <drm.h>
  55 #include <string.h>
  56 #include <dirent.h>
  57 #include <unistd.h>
  58 #include <errno.h>
  59
  60 #define memclear(s) memset(&s, 0, sizeof(s))
  61
  62 #define U642VOID(x) ((void *)(unsigned long)(x))
  63 #define VOID2U64(x) ((uint64_t)(unsigned long)(x))
  64
  65 static inline int DRM_IOCTL(int fd, unsigned long cmd, void *arg)
  66 {
  67         int ret = drmIoctl(fd, cmd, arg);
  68         return ret < 0 ? -errno : ret;
  69 }
  70
  71 /*
  72  * Util functions
  73  */
  74
  75 static void* drmAllocCpy(char *array, int count, int entry_size)
  76 {
  77         char *r;
  78         int i;
  79
  80         if (!count || !array || !entry_size)
  81                 return 0;
  82
  83         if (!(r = drmMalloc(count*entry_size)))
  84                 return 0;
  85
  86         for (i = 0; i < count; i++)
  87                 memcpy(r+(entry_size*i), array+(entry_size*i), entry_size);
  88
  89         return r;
  90 }
  91
  92 /*
  93  * A couple of free functions.
  94  */
  95
  96 void drmModeFreeModeInfo(drmModeModeInfoPtr ptr)
  97 {
  98         if (!ptr)
  99                 return;
 100
 101         drmFree(ptr);
 102 }
 103
 104 void drmModeFreeResources(drmModeResPtr ptr)
 105 {
 106         if (!ptr)
 107                 return;
 108
 109         drmFree(ptr->fbs);
 110         drmFree(ptr->crtcs);
 111         drmFree(ptr->connectors);
 112         drmFree(ptr->encoders);
 113         drmFree(ptr);
 114
 115 }
 116
 117 void drmModeFreeFB(drmModeFBPtr ptr)
 118 {
 119         if (!ptr)
 120                 return;
 121
 122         /* we might add more frees later. */
 123         drmFree(ptr);
 124 }
 125
 126 void drmModeFreeCrtc(drmModeCrtcPtr ptr)
 127 {
 128         if (!ptr)
 129                 return;
 130
 131         drmFree(ptr);
 132
 133 }
 134
 135 void drmModeFreeConnector(drmModeConnectorPtr ptr)
 136 {
 137         if (!ptr)
 138                 return;
 139
 140         drmFree(ptr->encoders);
 141         drmFree(ptr->prop_values);
 142         drmFree(ptr->props);
 143         drmFree(ptr->modes);
 144         drmFree(ptr);
 145
 146 }
 147
 148 void drmModeFreeEncoder(drmModeEncoderPtr ptr)
 149 {
 150         drmFree(ptr);
 151 }
 152
 153 /*
 154  * ModeSetting functions.
 155  */
 156
 157 drmModeResPtr drmModeGetResources(int fd)
 158 {
 159         struct drm_mode_card_res res, counts;
 160         drmModeResPtr r = 0;
 161
 162 retry:
 163         memclear(res);
 164         if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
 165                 return 0;
 166
 167         counts = res;
 168
 169         if (res.count_fbs) {
 170                 res.fb_id_ptr = VOID2U64(drmMalloc(res.count_fbs*sizeof(uint32_t)));
 171                 if (!res.fb_id_ptr)
 172                         goto err_allocs;
 173         }
 174         if (res.count_crtcs) {
 175                 res.crtc_id_ptr = VOID2U64(drmMalloc(res.count_crtcs*sizeof(uint32_t)));
 176                 if (!res.crtc_id_ptr)
 177                         goto err_allocs;
 178         }
 179         if (res.count_connectors) {
 180                 res.connector_id_ptr = VOID2U64(drmMalloc(res.count_connectors*sizeof(uint32_t)));
 181                 if (!res.connector_id_ptr)
 182                         goto err_allocs;
 183         }
 184         if (res.count_encoders) {
 185                 res.encoder_id_ptr = VOID2U64(drmMalloc(res.count_encoders*sizeof(uint32_t)));
 186                 if (!res.encoder_id_ptr)
 187                         goto err_allocs;
 188         }
 189
 190         if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
 191                 goto err_allocs;
 192
 193         /* The number of available connectors and etc may have changed with a
 194          * hotplug event in between the ioctls, in which case the field is
 195          * silently ignored by the kernel.
 196          */
 197         if (counts.count_fbs < res.count_fbs ||
 198             counts.count_crtcs < res.count_crtcs ||
 199             counts.count_connectors < res.count_connectors ||
 200             counts.count_encoders < res.count_encoders)
 201         {
 202                 drmFree(U642VOID(res.fb_id_ptr));
 203                 drmFree(U642VOID(res.crtc_id_ptr));
 204                 drmFree(U642VOID(res.connector_id_ptr));
 205                 drmFree(U642VOID(res.encoder_id_ptr));
 206
 207                 goto retry;
 208         }
 209
 210         /*
 211          * return
 212          */
 213         if (!(r = drmMalloc(sizeof(*r))))
 214                 goto err_allocs;
 215
 216         r->min_width     = res.min_width;
 217         r->max_width     = res.max_width;
 218         r->min_height    = res.min_height;
 219         r->max_height    = res.max_height;
 220         r->count_fbs     = res.count_fbs;
 221         r->count_crtcs   = res.count_crtcs;
 222         r->count_connectors = res.count_connectors;
 223         r->count_encoders = res.count_encoders;
 224
 225         r->fbs        = drmAllocCpy(U642VOID(res.fb_id_ptr), res.count_fbs, sizeof(uint32_t));
 226         r->crtcs      = drmAllocCpy(U642VOID(res.crtc_id_ptr), res.count_crtcs, sizeof(uint32_t));
 227         r->connectors = drmAllocCpy(U642VOID(res.connector_id_ptr), res.count_connectors, sizeof(uint32_t));
 228         r->encoders   = drmAllocCpy(U642VOID(res.encoder_id_ptr), res.count_encoders, sizeof(uint32_t));
 229         if ((res.count_fbs && !r->fbs) ||
 230             (res.count_crtcs && !r->crtcs) ||
 231             (res.count_connectors && !r->connectors) ||
 232             (res.count_encoders && !r->encoders))
 233         {
 234                 drmFree(r->fbs);
 235                 drmFree(r->crtcs);
 236                 drmFree(r->connectors);
 237                 drmFree(r->encoders);
 238                 drmFree(r);
 239                 r = 0;
 240         }
 241
 242 err_allocs:
 243         drmFree(U642VOID(res.fb_id_ptr));
 244         drmFree(U642VOID(res.crtc_id_ptr));
 245         drmFree(U642VOID(res.connector_id_ptr));
 246         drmFree(U642VOID(res.encoder_id_ptr));
 247
 248         return r;
 249 }
 250
 251 int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
 252                  uint8_t bpp, uint32_t pitch, uint32_t bo_handle,
 253                  uint32_t *buf_id)
 254 {
 255         struct drm_mode_fb_cmd f;
 256         int ret;
 257
 258         memclear(f);
 259         f.width  = width;
 260         f.height = height;
 261         f.pitch  = pitch;
 262         f.bpp    = bpp;
 263         f.depth  = depth;
 264         f.handle = bo_handle;
 265
 266         if ((ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ADDFB, &f)))
 267                 return ret;
 268
 269         *buf_id = f.fb_id;
 270         return 0;
 271 }
 272
 273 int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
 274                   uint32_t pixel_format, uint32_t bo_handles[4],
 275                   uint32_t pitches[4], uint32_t offsets[4],
 276                   uint32_t *buf_id, uint32_t flags)
 277 {
 278         struct drm_mode_fb_cmd2 f;
 279         int ret;
 280
 281         memclear(f);
 282         f.width  = width;
 283         f.height = height;
 284         f.pixel_format = pixel_format;
 285         f.flags = flags;
 286         memcpy(f.handles, bo_handles, 4 * sizeof(bo_handles[0]));
 287         memcpy(f.pitches, pitches, 4 * sizeof(pitches[0]));
 288         memcpy(f.offsets, offsets, 4 * sizeof(offsets[0]));
 289
 290         if ((ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ADDFB2, &f)))
 291                 return ret;
 292
 293         *buf_id = f.fb_id;
 294         return 0;
 295 }
 296
 297 int drmModeRmFB(int fd, uint32_t bufferId)
 298 {
 299         return DRM_IOCTL(fd, DRM_IOCTL_MODE_RMFB, &bufferId);
 300 }
 301
 302 drmModeFBPtr drmModeGetFB(int fd, uint32_t buf)
 303 {
 304         struct drm_mode_fb_cmd info;
 305         drmModeFBPtr r;
 306
 307         memclear(info);
 308         info.fb_id = buf;
 309
 310         if (drmIoctl(fd, DRM_IOCTL_MODE_GETFB, &info))
 311                 return NULL;
 312
 313         if (!(r = drmMalloc(sizeof(*r))))
 314                 return NULL;
 315
 316         r->fb_id = info.fb_id;
 317         r->width = info.width;
 318         r->height = info.height;
 319         r->pitch = info.pitch;
 320         r->bpp = info.bpp;
 321         r->handle = info.handle;
 322         r->depth = info.depth;
 323
 324         return r;
 325 }
 326
 327 int drmModeDirtyFB(int fd, uint32_t bufferId,
 328                    drmModeClipPtr clips, uint32_t num_clips)
 329 {
 330         struct drm_mode_fb_dirty_cmd dirty;
 331
 332         memclear(dirty);
 333         dirty.fb_id = bufferId;
 334         dirty.clips_ptr = VOID2U64(clips);
 335         dirty.num_clips = num_clips;
 336
 337         return DRM_IOCTL(fd, DRM_IOCTL_MODE_DIRTYFB, &dirty);
 338 }
 339
 340
 341 /*
 342  * Crtc functions
 343  */
 344
 345 drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId)
 346 {
 347         struct drm_mode_crtc crtc;
 348         drmModeCrtcPtr r;
 349
 350         memclear(crtc);
 351         crtc.crtc_id = crtcId;
 352
 353         if (drmIoctl(fd, DRM_IOCTL_MODE_GETCRTC, &crtc))
 354                 return 0;
 355
 356         /*
 357          * return
 358          */
 359
 360         if (!(r = drmMalloc(sizeof(*r))))
 361                 return 0;
 362
 363         r->crtc_id         = crtc.crtc_id;
 364         r->x               = crtc.x;
 365         r->y               = crtc.y;
 366         r->mode_valid      = crtc.mode_valid;
 367         if (r->mode_valid) {
 368                 memcpy(&r->mode, &crtc.mode, sizeof(struct drm_mode_modeinfo));
 369                 r->width = crtc.mode.hdisplay;
 370                 r->height = crtc.mode.vdisplay;
 371         }
 372         r->buffer_id       = crtc.fb_id;
 373         r->gamma_size      = crtc.gamma_size;
 374         return r;
 375 }
 376
 377
 378 int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
 379                    uint32_t x, uint32_t y, uint32_t *connectors, int count,
 380                    drmModeModeInfoPtr mode)
 381 {
 382         struct drm_mode_crtc crtc;
 383
 384         memclear(crtc);
 385         crtc.x             = x;
 386         crtc.y             = y;
 387         crtc.crtc_id       = crtcId;
 388         crtc.fb_id         = bufferId;
 389         crtc.set_connectors_ptr = VOID2U64(connectors);
 390         crtc.count_connectors = count;
 391         if (mode) {
 392           memcpy(&crtc.mode, mode, sizeof(struct drm_mode_modeinfo));
 393           crtc.mode_valid = 1;
 394         }
 395
 396         return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETCRTC, &crtc);
 397 }
 398
 399 /*
 400  * Cursor manipulation
 401  */
 402
 403 int drmModeSetCursor(int fd, uint32_t crtcId, uint32_t bo_handle, uint32_t width, uint32_t height)
 404 {
 405         struct drm_mode_cursor arg;
 406
 407         memclear(arg);
 408         arg.flags = DRM_MODE_CURSOR_BO;
 409         arg.crtc_id = crtcId;
 410         arg.width = width;
 411         arg.height = height;
 412         arg.handle = bo_handle;
 413
 414         return DRM_IOCTL(fd, DRM_IOCTL_MODE_CURSOR, &arg);
 415 }
 416
 417 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)
 418 {
 419         struct drm_mode_cursor2 arg;
 420
 421         memclear(arg);
 422         arg.flags = DRM_MODE_CURSOR_BO;
 423         arg.crtc_id = crtcId;
 424         arg.width = width;
 425         arg.height = height;
 426         arg.handle = bo_handle;
 427         arg.hot_x = hot_x;
 428         arg.hot_y = hot_y;
 429
 430         return DRM_IOCTL(fd, DRM_IOCTL_MODE_CURSOR2, &arg);
 431 }
 432
 433 int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y)
 434 {
 435         struct drm_mode_cursor arg;
 436
 437         memclear(arg);
 438         arg.flags = DRM_MODE_CURSOR_MOVE;
 439         arg.crtc_id = crtcId;
 440         arg.x = x;
 441         arg.y = y;
 442
 443         return DRM_IOCTL(fd, DRM_IOCTL_MODE_CURSOR, &arg);
 444 }
 445
 446 /*
 447  * Encoder get
 448  */
 449 drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id)
 450 {
 451         struct drm_mode_get_encoder enc;
 452         drmModeEncoderPtr r = NULL;
 453
 454         memclear(enc);
 455         enc.encoder_id = encoder_id;
 456
 457         if (drmIoctl(fd, DRM_IOCTL_MODE_GETENCODER, &enc))
 458                 return 0;
 459
 460         if (!(r = drmMalloc(sizeof(*r))))
 461                 return 0;
 462
 463         r->encoder_id = enc.encoder_id;
 464         r->crtc_id = enc.crtc_id;
 465         r->encoder_type = enc.encoder_type;
 466         r->possible_crtcs = enc.possible_crtcs;
 467         r->possible_clones = enc.possible_clones;
 468
 469         return r;
 470 }
 471
 472 /*
 473  * Connector manipulation
 474  */
 475 static drmModeConnectorPtr
 476 _drmModeGetConnector(int fd, uint32_t connector_id, int probe)
 477 {
 478         struct drm_mode_get_connector conn, counts;
 479         drmModeConnectorPtr r = NULL;
 480
 481         memclear(conn);
 482         conn.connector_id = connector_id;
 483         if (!probe) {
 484                 conn.count_modes = 1;
 485                 conn.modes_ptr = VOID2U64(drmMalloc(sizeof(struct drm_mode_modeinfo)));
 486         }
 487
 488         if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn))
 489                 return 0;
 490
 491 retry:
 492         counts = conn;
 493
 494         if (conn.count_props) {
 495                 conn.props_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint32_t)));
 496                 if (!conn.props_ptr)
 497                         goto err_allocs;
 498                 conn.prop_values_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint64_t)));
 499                 if (!conn.prop_values_ptr)
 500                         goto err_allocs;
 501         }
 502
 503         if (conn.count_modes) {
 504                 conn.modes_ptr = VOID2U64(drmMalloc(conn.count_modes*sizeof(struct drm_mode_modeinfo)));
 505                 if (!conn.modes_ptr)
 506                         goto err_allocs;
 507         } else {
 508                 conn.count_modes = 1;
 509                 conn.modes_ptr = VOID2U64(drmMalloc(sizeof(struct drm_mode_modeinfo)));
 510         }
 511
 512         if (conn.count_encoders) {
 513                 conn.encoders_ptr = VOID2U64(drmMalloc(conn.count_encoders*sizeof(uint32_t)));
 514                 if (!conn.encoders_ptr)
 515                         goto err_allocs;
 516         }
 517
 518         if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn))
 519                 goto err_allocs;
 520
 521         /* The number of available connectors and etc may have changed with a
 522          * hotplug event in between the ioctls, in which case the field is
 523          * silently ignored by the kernel.
 524          */
 525         if (counts.count_props < conn.count_props ||
 526             counts.count_modes < conn.count_modes ||
 527             counts.count_encoders < conn.count_encoders) {
 528                 drmFree(U642VOID(conn.props_ptr));
 529                 drmFree(U642VOID(conn.prop_values_ptr));
 530                 drmFree(U642VOID(conn.modes_ptr));
 531                 drmFree(U642VOID(conn.encoders_ptr));
 532
 533                 goto retry;
 534         }
 535
 536         if(!(r = drmMalloc(sizeof(*r)))) {
 537                 goto err_allocs;
 538         }
 539
 540         r->connector_id = conn.connector_id;
 541         r->encoder_id = conn.encoder_id;
 542         r->connection   = conn.connection;
 543         r->mmWidth      = conn.mm_width;
 544         r->mmHeight     = conn.mm_height;
 545         /* convert subpixel from kernel to userspace */
 546         r->subpixel     = conn.subpixel + 1;
 547         r->count_modes  = conn.count_modes;
 548         r->count_props  = conn.count_props;
 549         r->props        = drmAllocCpy(U642VOID(conn.props_ptr), conn.count_props, sizeof(uint32_t));
 550         r->prop_values  = drmAllocCpy(U642VOID(conn.prop_values_ptr), conn.count_props, sizeof(uint64_t));
 551         r->modes        = drmAllocCpy(U642VOID(conn.modes_ptr), conn.count_modes, sizeof(struct drm_mode_modeinfo));
 552         r->count_encoders = conn.count_encoders;
 553         r->encoders     = drmAllocCpy(U642VOID(conn.encoders_ptr), conn.count_encoders, sizeof(uint32_t));
 554         r->connector_type  = conn.connector_type;
 555         r->connector_type_id = conn.connector_type_id;
 556
 557         if ((r->count_props && !r->props) ||
 558             (r->count_props && !r->prop_values) ||
 559             (r->count_modes && !r->modes) ||
 560             (r->count_encoders && !r->encoders)) {
 561                 drmFree(r->props);
 562                 drmFree(r->prop_values);
 563                 drmFree(r->modes);
 564                 drmFree(r->encoders);
 565                 drmFree(r);
 566                 r = 0;
 567         }
 568
 569 err_allocs:
 570         drmFree(U642VOID(conn.prop_values_ptr));
 571         drmFree(U642VOID(conn.props_ptr));
 572         drmFree(U642VOID(conn.modes_ptr));
 573         drmFree(U642VOID(conn.encoders_ptr));
 574
 575         return r;
 576 }
 577
 578 drmModeConnectorPtr drmModeGetConnector(int fd, uint32_t connector_id)
 579 {
 580         return _drmModeGetConnector(fd, connector_id, 1);
 581 }
 582
 583 drmModeConnectorPtr drmModeGetConnectorCurrent(int fd, uint32_t connector_id)
 584 {
 585         return _drmModeGetConnector(fd, connector_id, 0);
 586 }
 587
 588 int drmModeAttachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info)
 589 {
 590         struct drm_mode_mode_cmd res;
 591
 592         memclear(res);
 593         memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo));
 594         res.connector_id = connector_id;
 595
 596         return DRM_IOCTL(fd, DRM_IOCTL_MODE_ATTACHMODE, &res);
 597 }
 598
 599 int drmModeDetachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info)
 600 {
 601         struct drm_mode_mode_cmd res;
 602
 603         memclear(res);
 604         memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo));
 605         res.connector_id = connector_id;
 606
 607         return DRM_IOCTL(fd, DRM_IOCTL_MODE_DETACHMODE, &res);
 608 }
 609
 610
 611 drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id)
 612 {
 613         struct drm_mode_get_property prop;
 614         drmModePropertyPtr r;
 615
 616         memclear(prop);
 617         prop.prop_id = property_id;
 618
 619         if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop))
 620                 return 0;
 621
 622         if (prop.count_values)
 623                 prop.values_ptr = VOID2U64(drmMalloc(prop.count_values * sizeof(uint64_t)));
 624
 625         if (prop.count_enum_blobs && (prop.flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
 626                 prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(struct drm_mode_property_enum)));
 627
 628         if (prop.count_enum_blobs && (prop.flags & DRM_MODE_PROP_BLOB)) {
 629                 prop.values_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t)));
 630                 prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t)));
 631         }
 632
 633         if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop)) {
 634                 r = NULL;
 635                 goto err_allocs;
 636         }
 637
 638         if (!(r = drmMalloc(sizeof(*r))))
 639                 return NULL;
 640
 641         r->prop_id = prop.prop_id;
 642         r->count_values = prop.count_values;
 643
 644         r->flags = prop.flags;
 645         if (prop.count_values)
 646                 r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_values, sizeof(uint64_t));
 647         if (prop.flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
 648                 r->count_enums = prop.count_enum_blobs;
 649                 r->enums = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(struct drm_mode_property_enum));
 650         } else if (prop.flags & DRM_MODE_PROP_BLOB) {
 651                 r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_enum_blobs, sizeof(uint32_t));
 652                 r->blob_ids = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(uint32_t));
 653                 r->count_blobs = prop.count_enum_blobs;
 654         }
 655         strncpy(r->name, prop.name, DRM_PROP_NAME_LEN);
 656         r->name[DRM_PROP_NAME_LEN-1] = 0;
 657
 658 err_allocs:
 659         drmFree(U642VOID(prop.values_ptr));
 660         drmFree(U642VOID(prop.enum_blob_ptr));
 661
 662         return r;
 663 }
 664
 665 void drmModeFreeProperty(drmModePropertyPtr ptr)
 666 {
 667         if (!ptr)
 668                 return;
 669
 670         drmFree(ptr->values);
 671         drmFree(ptr->enums);
 672         drmFree(ptr);
 673 }
 674
 675 drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd, uint32_t blob_id)
 676 {
 677         struct drm_mode_get_blob blob;
 678         drmModePropertyBlobPtr r;
 679
 680         memclear(blob);
 681         blob.blob_id = blob_id;
 682
 683         if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob))
 684                 return NULL;
 685
 686         if (blob.length)
 687                 blob.data = VOID2U64(drmMalloc(blob.length));
 688
 689         if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob)) {
 690                 r = NULL;
 691                 goto err_allocs;
 692         }
 693
 694         if (!(r = drmMalloc(sizeof(*r))))
 695                 goto err_allocs;
 696
 697         r->id = blob.blob_id;
 698         r->length = blob.length;
 699         r->data = drmAllocCpy(U642VOID(blob.data), 1, blob.length);
 700
 701 err_allocs:
 702         drmFree(U642VOID(blob.data));
 703         return r;
 704 }
 705
 706 void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr)
 707 {
 708         if (!ptr)
 709                 return;
 710
 711         drmFree(ptr->data);
 712         drmFree(ptr);
 713 }
 714
 715 int drmModeConnectorSetProperty(int fd, uint32_t connector_id, uint32_t property_id,
 716                              uint64_t value)
 717 {
 718         struct drm_mode_connector_set_property osp;
 719
 720         memclear(osp);
 721         osp.connector_id = connector_id;
 722         osp.prop_id = property_id;
 723         osp.value = value;
 724
 725         return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETPROPERTY, &osp);
 726 }
 727
 728 /*
 729  * checks if a modesetting capable driver has attached to the pci id
 730  * returns 0 if modesetting supported.
 731  *  -EINVAL or invalid bus id
 732  *  -ENOSYS if no modesetting support
 733 */
 734 int drmCheckModesettingSupported(const char *busid)
 735 {
 736 #if defined (__linux__)
 737         char pci_dev_dir[1024];
 738         int domain, bus, dev, func;
 739         DIR *sysdir;
 740         struct dirent *dent;
 741         int found = 0, ret;
 742
 743         ret = sscanf(busid, "pci:%04x:%02x:%02x.%d", &domain, &bus, &dev, &func);
 744         if (ret != 4)
 745                 return -EINVAL;
 746
 747         sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/drm",
 748                 domain, bus, dev, func);
 749
 750         sysdir = opendir(pci_dev_dir);
 751         if (sysdir) {
 752                 dent = readdir(sysdir);
 753                 while (dent) {
 754                         if (!strncmp(dent->d_name, "controlD", 8)) {
 755                                 found = 1;
 756                                 break;
 757                         }
 758
 759                         dent = readdir(sysdir);
 760                 }
 761                 closedir(sysdir);
 762                 if (found)
 763                         return 0;
 764         }
 765
 766         sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/",
 767                 domain, bus, dev, func);
 768
 769         sysdir = opendir(pci_dev_dir);
 770         if (!sysdir)
 771                 return -EINVAL;
 772
 773         dent = readdir(sysdir);
 774         while (dent) {
 775                 if (!strncmp(dent->d_name, "drm:controlD", 12)) {
 776                         found = 1;
 777                         break;
 778                 }
 779
 780                 dent = readdir(sysdir);
 781         }
 782
 783         closedir(sysdir);
 784         if (found)
 785                 return 0;
 786 #elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__)
 787         char kbusid[1024], sbusid[1024];
 788         char oid[128];
 789         int domain, bus, dev, func;
 790         int i, modesetting, ret;
 791         size_t len;
 792
 793         ret = sscanf(busid, "pci:%04x:%02x:%02x.%d", &domain, &bus, &dev,
 794             &func);
 795         if (ret != 4)
 796                 return -EINVAL;
 797         snprintf(kbusid, sizeof(kbusid), "pci:%04x:%02x:%02x.%d", domain, bus,
 798             dev, func);
 799
 800         /* How many GPUs do we expect in the machine ? */
 801         for (i = 0; i < 16; i++) {
 802                 snprintf(oid, sizeof(oid), "hw.dri.%d.busid", i);
 803                 len = sizeof(sbusid);
 804                 ret = sysctlbyname(oid, sbusid, &len, NULL, 0);
 805                 if (ret == -1) {
 806                         if (errno == ENOENT)
 807                                 continue;
 808                         return -EINVAL;
 809                 }
 810                 if (strcmp(sbusid, kbusid) != 0)
 811                         continue;
 812                 snprintf(oid, sizeof(oid), "hw.dri.%d.modesetting", i);
 813                 len = sizeof(modesetting);
 814                 ret = sysctlbyname(oid, &modesetting, &len, NULL, 0);
 815                 if (ret == -1 || len != sizeof(modesetting))
 816                         return -EINVAL;
 817                 return (modesetting ? 0 : -ENOSYS);
 818         }
 819 #elif defined(__DragonFly__)
 820         return 0;
 821 #endif
 822         return -ENOSYS;
 823
 824 }
 825
 826 int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size,
 827                         uint16_t *red, uint16_t *green, uint16_t *blue)
 828 {
 829         struct drm_mode_crtc_lut l;
 830
 831         memclear(l);
 832         l.crtc_id = crtc_id;
 833         l.gamma_size = size;
 834         l.red = VOID2U64(red);
 835         l.green = VOID2U64(green);
 836         l.blue = VOID2U64(blue);
 837
 838         return DRM_IOCTL(fd, DRM_IOCTL_MODE_GETGAMMA, &l);
 839 }
 840
 841 int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size,
 842                         uint16_t *red, uint16_t *green, uint16_t *blue)
 843 {
 844         struct drm_mode_crtc_lut l;
 845
 846         memclear(l);
 847         l.crtc_id = crtc_id;
 848         l.gamma_size = size;
 849         l.red = VOID2U64(red);
 850         l.green = VOID2U64(green);
 851         l.blue = VOID2U64(blue);
 852
 853         return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETGAMMA, &l);
 854 }
 855
 856 int drmHandleEvent(int fd, drmEventContextPtr evctx)
 857 {
 858         char buffer[1024];
 859         int len, i;
 860         struct drm_event *e;
 861         struct drm_event_vblank *vblank;
 862
 863         /* The DRM read semantics guarantees that we always get only
 864          * complete events. */
 865
 866         len = read(fd, buffer, sizeof buffer);
 867         if (len == 0)
 868                 return 0;
 869         if (len < (int)sizeof *e)
 870                 return -1;
 871
 872         i = 0;
 873         while (i < len) {
 874                 e = (struct drm_event *) &buffer[i];
 875                 switch (e->type) {
 876                 case DRM_EVENT_VBLANK:
 877                         if (evctx->version < 1 ||
 878                             evctx->vblank_handler == NULL)
 879                                 break;
 880                         vblank = (struct drm_event_vblank *) e;
 881                         evctx->vblank_handler(fd,
 882                                               vblank->sequence,
 883                                               vblank->tv_sec,
 884                                               vblank->tv_usec,
 885                                               U642VOID (vblank->user_data));
 886                         break;
 887                 case DRM_EVENT_FLIP_COMPLETE:
 888                         if (evctx->version < 2 ||
 889                             evctx->page_flip_handler == NULL)
 890                                 break;
 891                         vblank = (struct drm_event_vblank *) e;
 892                         evctx->page_flip_handler(fd,
 893                                                  vblank->sequence,
 894                                                  vblank->tv_sec,
 895                                                  vblank->tv_usec,
 896                                                  U642VOID (vblank->user_data));
 897                         break;
 898                 default:
 899                         break;
 900                 }
 901                 i += e->length;
 902         }
 903
 904         return 0;
 905 }
 906
 907 int drmModePageFlip(int fd, uint32_t crtc_id, uint32_t fb_id,
 908                     uint32_t flags, void *user_data)
 909 {
 910         struct drm_mode_crtc_page_flip flip;
 911
 912         memclear(flip);
 913         flip.fb_id = fb_id;
 914         flip.crtc_id = crtc_id;
 915         flip.user_data = VOID2U64(user_data);
 916         flip.flags = flags;
 917
 918         return DRM_IOCTL(fd, DRM_IOCTL_MODE_PAGE_FLIP, &flip);
 919 }
 920
 921 int drmModeSetPlane(int fd, uint32_t plane_id, uint32_t crtc_id,
 922                     uint32_t fb_id, uint32_t flags,
 923                     int32_t crtc_x, int32_t crtc_y,
 924                     uint32_t crtc_w, uint32_t crtc_h,
 925                     uint32_t src_x, uint32_t src_y,
 926                     uint32_t src_w, uint32_t src_h)
 927
 928 {
 929         struct drm_mode_set_plane s;
 930
 931         memclear(s);
 932         s.plane_id = plane_id;
 933         s.crtc_id = crtc_id;
 934         s.fb_id = fb_id;
 935         s.flags = flags;
 936         s.crtc_x = crtc_x;
 937         s.crtc_y = crtc_y;
 938         s.crtc_w = crtc_w;
 939         s.crtc_h = crtc_h;
 940         s.src_x = src_x;
 941         s.src_y = src_y;
 942         s.src_w = src_w;
 943         s.src_h = src_h;
 944
 945         return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETPLANE, &s);
 946 }
 947
 948
 949 drmModePlanePtr drmModeGetPlane(int fd, uint32_t plane_id)
 950 {
 951         struct drm_mode_get_plane ovr, counts;
 952         drmModePlanePtr r = 0;
 953
 954 retry:
 955         memclear(ovr);
 956         ovr.plane_id = plane_id;
 957         if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANE, &ovr))
 958                 return 0;
 959
 960         counts = ovr;
 961
 962         if (ovr.count_format_types) {
 963                 ovr.format_type_ptr = VOID2U64(drmMalloc(ovr.count_format_types *
 964                                                          sizeof(uint32_t)));
 965                 if (!ovr.format_type_ptr)
 966                         goto err_allocs;
 967         }
 968
 969         if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANE, &ovr))
 970                 goto err_allocs;
 971
 972         if (counts.count_format_types < ovr.count_format_types) {
 973                 drmFree(U642VOID(ovr.format_type_ptr));
 974                 goto retry;
 975         }
 976
 977         if (!(r = drmMalloc(sizeof(*r))))
 978                 goto err_allocs;
 979
 980         r->count_formats = ovr.count_format_types;
 981         r->plane_id = ovr.plane_id;
 982         r->crtc_id = ovr.crtc_id;
 983         r->fb_id = ovr.fb_id;
 984         r->possible_crtcs = ovr.possible_crtcs;
 985         r->gamma_size = ovr.gamma_size;
 986         r->formats = drmAllocCpy(U642VOID(ovr.format_type_ptr),
 987                                  ovr.count_format_types, sizeof(uint32_t));
 988         if (ovr.count_format_types && !r->formats) {
 989                 drmFree(r->formats);
 990                 drmFree(r);
 991                 r = 0;
 992         }
 993
 994 err_allocs:
 995         drmFree(U642VOID(ovr.format_type_ptr));
 996
 997         return r;
 998 }
 999
1000 void drmModeFreePlane(drmModePlanePtr ptr)
1001 {
1002         if (!ptr)
1003                 return;
1004
1005         drmFree(ptr->formats);
1006         drmFree(ptr);
1007 }
1008
1009 drmModePlaneResPtr drmModeGetPlaneResources(int fd)
1010 {
1011         struct drm_mode_get_plane_res res, counts;
1012         drmModePlaneResPtr r = 0;
1013
1014 retry:
1015         memclear(res);
1016         if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANERESOURCES, &res))
1017                 return 0;
1018
1019         counts = res;
1020
1021         if (res.count_planes) {
1022                 res.plane_id_ptr = VOID2U64(drmMalloc(res.count_planes *
1023                                                         sizeof(uint32_t)));
1024                 if (!res.plane_id_ptr)
1025                         goto err_allocs;
1026         }
1027
1028         if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANERESOURCES, &res))
1029                 goto err_allocs;
1030
1031         if (counts.count_planes < res.count_planes) {
1032                 drmFree(U642VOID(res.plane_id_ptr));
1033                 goto retry;
1034         }
1035
1036         if (!(r = drmMalloc(sizeof(*r))))
1037                 goto err_allocs;
1038
1039         r->count_planes = res.count_planes;
1040         r->planes = drmAllocCpy(U642VOID(res.plane_id_ptr),
1041                                   res.count_planes, sizeof(uint32_t));
1042         if (res.count_planes && !r->planes) {
1043                 drmFree(r->planes);
1044                 drmFree(r);
1045                 r = 0;
1046         }
1047
1048 err_allocs:
1049         drmFree(U642VOID(res.plane_id_ptr));
1050
1051         return r;
1052 }
1053
1054 void drmModeFreePlaneResources(drmModePlaneResPtr ptr)
1055 {
1056         if (!ptr)
1057                 return;
1058
1059         drmFree(ptr->planes);
1060         drmFree(ptr);
1061 }
1062
1063 drmModeObjectPropertiesPtr drmModeObjectGetProperties(int fd,
1064                                                       uint32_t object_id,
1065                                                       uint32_t object_type)
1066 {
1067         struct drm_mode_obj_get_properties properties;
1068         drmModeObjectPropertiesPtr ret = NULL;
1069         uint32_t count;
1070
1071 retry:
1072         memclear(properties);
1073         properties.obj_id = object_id;
1074         properties.obj_type = object_type;
1075
1076         if (drmIoctl(fd, DRM_IOCTL_MODE_OBJ_GETPROPERTIES, &properties))
1077                 return 0;
1078
1079         count = properties.count_props;
1080
1081         if (count) {
1082                 properties.props_ptr = VOID2U64(drmMalloc(count *
1083                                                           sizeof(uint32_t)));
1084                 if (!properties.props_ptr)
1085                         goto err_allocs;
1086                 properties.prop_values_ptr = VOID2U64(drmMalloc(count *
1087                                                       sizeof(uint64_t)));
1088                 if (!properties.prop_values_ptr)
1089                         goto err_allocs;
1090         }
1091
1092         if (drmIoctl(fd, DRM_IOCTL_MODE_OBJ_GETPROPERTIES, &properties))
1093                 goto err_allocs;
1094
1095         if (count < properties.count_props) {
1096                 drmFree(U642VOID(properties.props_ptr));
1097                 drmFree(U642VOID(properties.prop_values_ptr));
1098                 goto retry;
1099         }
1100         count = properties.count_props;
1101
1102         ret = drmMalloc(sizeof(*ret));
1103         if (!ret)
1104                 goto err_allocs;
1105
1106         ret->count_props = count;
1107         ret->props = drmAllocCpy(U642VOID(properties.props_ptr),
1108                                  count, sizeof(uint32_t));
1109         ret->prop_values = drmAllocCpy(U642VOID(properties.prop_values_ptr),
1110                                        count, sizeof(uint64_t));
1111         if (ret->count_props && (!ret->props || !ret->prop_values)) {
1112                 drmFree(ret->props);
1113                 drmFree(ret->prop_values);
1114                 drmFree(ret);
1115                 ret = NULL;
1116         }
1117
1118 err_allocs:
1119         drmFree(U642VOID(properties.props_ptr));
1120         drmFree(U642VOID(properties.prop_values_ptr));
1121         return ret;
1122 }
1123
1124 void drmModeFreeObjectProperties(drmModeObjectPropertiesPtr ptr)
1125 {
1126         if (!ptr)
1127                 return;
1128         drmFree(ptr->props);
1129         drmFree(ptr->prop_values);
1130         drmFree(ptr);
1131 }
1132
1133 int drmModeObjectSetProperty(int fd, uint32_t object_id, uint32_t object_type,
1134                              uint32_t property_id, uint64_t value)
1135 {
1136         struct drm_mode_obj_set_property prop;
1137
1138         memclear(prop);
1139         prop.value = value;
1140         prop.prop_id = property_id;
1141         prop.obj_id = object_id;
1142         prop.obj_type = object_type;
1143
1144         return DRM_IOCTL(fd, DRM_IOCTL_MODE_OBJ_SETPROPERTY, &prop);
1145 }
1146
1147 typedef struct _drmModeAtomicReqItem drmModeAtomicReqItem, *drmModeAtomicReqItemPtr;
1148
1149 struct _drmModeAtomicReqItem {
1150         uint32_t object_id;
1151         uint32_t property_id;
1152         uint64_t value;
1153 };
1154
1155 struct _drmModeAtomicReq {
1156         uint32_t cursor;
1157         uint32_t size_items;
1158         drmModeAtomicReqItemPtr items;
1159 };
1160
1161 drmModeAtomicReqPtr drmModeAtomicAlloc(void)
1162 {
1163         drmModeAtomicReqPtr req;
1164
1165         req = drmMalloc(sizeof *req);
1166         if (!req)
1167                 return NULL;
1168
1169         req->items = NULL;
1170         req->cursor = 0;
1171         req->size_items = 0;
1172
1173         return req;
1174 }
1175
1176 drmModeAtomicReqPtr drmModeAtomicDuplicate(drmModeAtomicReqPtr old)
1177 {
1178         drmModeAtomicReqPtr new;
1179
1180         new = drmMalloc(sizeof *new);
1181         if (!new)
1182                 return NULL;
1183
1184         new->cursor = old->cursor;
1185         new->size_items = old->size_items;
1186
1187         if (old->size_items) {
1188                 new->items = drmMalloc(old->size_items * sizeof(*new->items));
1189                 if (!new->items) {
1190                         free(new);
1191                         return NULL;
1192                 }
1193                 memcpy(new->items, old->items,
1194                        old->size_items * sizeof(*new->items));
1195         } else {
1196                 new->items = NULL;
1197         }
1198
1199         return new;
1200 }
1201
1202 int drmModeAtomicMerge(drmModeAtomicReqPtr base, drmModeAtomicReqPtr augment)
1203 {
1204         if (!augment || augment->cursor == 0)
1205                 return 0;
1206
1207         if (base->cursor + augment->cursor >= base->size_items) {
1208                 drmModeAtomicReqItemPtr new;
1209                 int saved_size = base->size_items;
1210
1211                 base->size_items = base->cursor + augment->cursor;
1212                 new = realloc(base->items,
1213                               base->size_items * sizeof(*base->items));
1214                 if (!new) {
1215                         base->size_items = saved_size;
1216                         return -ENOMEM;
1217                 }
1218                 base->items = new;
1219         }
1220
1221         memcpy(&base->items[base->cursor], augment->items,
1222                augment->cursor * sizeof(*augment->items));
1223         base->cursor += augment->cursor;
1224
1225         return 0;
1226 }
1227
1228 int drmModeAtomicGetCursor(drmModeAtomicReqPtr req)
1229 {
1230         return req->cursor;
1231 }
1232
1233 void drmModeAtomicSetCursor(drmModeAtomicReqPtr req, int cursor)
1234 {
1235         req->cursor = cursor;
1236 }
1237
1238 int drmModeAtomicAddProperty(drmModeAtomicReqPtr req,
1239                              uint32_t object_id,
1240                              uint32_t property_id,
1241                              uint64_t value)
1242 {
1243         if (req->cursor >= req->size_items) {
1244                 drmModeAtomicReqItemPtr new;
1245
1246                 req->size_items += 16;
1247                 new = realloc(req->items, req->size_items * sizeof(*req->items));
1248                 if (!new) {
1249                         req->size_items -= 16;
1250                         return -ENOMEM;
1251                 }
1252                 req->items = new;
1253         }
1254
1255         req->items[req->cursor].object_id = object_id;
1256         req->items[req->cursor].property_id = property_id;
1257         req->items[req->cursor].value = value;
1258         req->cursor++;
1259
1260         return req->cursor;
1261 }
1262
1263 void drmModeAtomicFree(drmModeAtomicReqPtr req)
1264 {
1265         if (!req)
1266                 return;
1267
1268         if (req->items)
1269                 drmFree(req->items);
1270         drmFree(req);
1271 }
1272
1273 static int sort_req_list(const void *misc, const void *other)
1274 {
1275         const drmModeAtomicReqItem *first = misc;
1276         const drmModeAtomicReqItem *second = other;
1277
1278         if (first->object_id < second->object_id)
1279                 return -1;
1280         else if (first->object_id > second->object_id)
1281                 return 1;
1282         else
1283                 return second->property_id - first->property_id;
1284 }
1285
1286 int drmModeAtomicCommit(int fd, drmModeAtomicReqPtr req, uint32_t flags,
1287                         void *user_data)
1288 {
1289         drmModeAtomicReqPtr sorted = drmModeAtomicDuplicate(req);
1290         struct drm_mode_atomic atomic;
1291         uint32_t *objs_ptr = NULL;
1292         uint32_t *count_props_ptr = NULL;
1293         uint32_t *props_ptr = NULL;
1294         uint64_t *prop_values_ptr = NULL;
1295         uint32_t last_obj_id = 0;
1296         uint32_t i;
1297         int obj_idx = -1;
1298         int ret = -1;
1299
1300         if (!sorted)
1301                 return -ENOMEM;
1302
1303         memclear(atomic);
1304
1305         /* Sort the list by object ID, then by property ID. */
1306         qsort(sorted->items, sorted->cursor, sizeof(*sorted->items),
1307               sort_req_list);
1308
1309         /* Now the list is sorted, eliminate duplicate property sets. */
1310         for (i = 0; i < sorted->cursor; i++) {
1311                 if (sorted->items[i].object_id != last_obj_id) {
1312                         atomic.count_objs++;
1313                         last_obj_id = sorted->items[i].object_id;
1314                 }
1315
1316                 if (i == sorted->cursor - 1)
1317                         continue;
1318
1319                 if (sorted->items[i].object_id != sorted->items[i + 1].object_id ||
1320                     sorted->items[i].property_id != sorted->items[i + 1].property_id)
1321                         continue;
1322
1323                 memmove(&sorted->items[i], &sorted->items[i + 1],
1324                         (sorted->cursor - i - 1) * sizeof(*sorted->items));
1325                 sorted->cursor--;
1326         }
1327
1328         objs_ptr = drmMalloc(atomic.count_objs * sizeof objs_ptr[0]);
1329         if (!objs_ptr) {
1330                 errno = ENOMEM;
1331                 goto out;
1332         }
1333
1334         count_props_ptr = drmMalloc(atomic.count_objs * sizeof count_props_ptr[0]);
1335         if (!count_props_ptr) {
1336                 errno = ENOMEM;
1337                 goto out;
1338         }
1339
1340         props_ptr = drmMalloc(sorted->cursor * sizeof props_ptr[0]);
1341         if (!props_ptr) {
1342                 errno = ENOMEM;
1343                 goto out;
1344         }
1345
1346         prop_values_ptr = drmMalloc(sorted->cursor * sizeof prop_values_ptr[0]);
1347         if (!prop_values_ptr) {
1348                 errno = ENOMEM;
1349                 goto out;
1350         }
1351
1352         for (i = 0, last_obj_id = 0; i < sorted->cursor; i++) {
1353                 if (sorted->items[i].object_id != last_obj_id) {
1354                         obj_idx++;
1355                         objs_ptr[obj_idx] = sorted->items[i].object_id;
1356                         last_obj_id = objs_ptr[obj_idx];
1357                 }
1358
1359                 count_props_ptr[obj_idx]++;
1360                 props_ptr[i] = sorted->items[i].property_id;
1361                 prop_values_ptr[i] = sorted->items[i].value;
1362
1363         }
1364
1365         atomic.flags = flags;
1366         atomic.objs_ptr = VOID2U64(objs_ptr);
1367         atomic.count_props_ptr = VOID2U64(count_props_ptr);
1368         atomic.props_ptr = VOID2U64(props_ptr);
1369         atomic.prop_values_ptr = VOID2U64(prop_values_ptr);
1370         atomic.user_data = VOID2U64(user_data);
1371
1372         ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ATOMIC, &atomic);
1373
1374 out:
1375         drmFree(objs_ptr);
1376         drmFree(count_props_ptr);
1377         drmFree(props_ptr);
1378         drmFree(prop_values_ptr);
1379         drmModeAtomicFree(sorted);
1380
1381         return ret;
1382 }
1383
1384 int
1385 drmModeCreatePropertyBlob(int fd, const void *data, size_t length, uint32_t *id)
1386 {
1387         struct drm_mode_create_blob create;
1388         int ret;
1389
1390         if (length >= 0xffffffff)
1391                 return -ERANGE;
1392
1393         memclear(create);
1394
1395         create.length = length;
1396         create.data = (uintptr_t) data;
1397         create.blob_id = 0;
1398         *id = 0;
1399
1400         ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_CREATEPROPBLOB, &create);
1401         if (ret != 0)
1402                 return ret;
1403
1404         *id = create.blob_id;
1405         return 0;
1406 }
1407
1408 int
1409 drmModeDestroyPropertyBlob(int fd, uint32_t id)
1410 {
1411         struct drm_mode_destroy_blob destroy;
1412
1413         memclear(destroy);
1414         destroy.blob_id = id;
1415         return DRM_IOCTL(fd, DRM_IOCTL_MODE_DESTROYPROPBLOB, &destroy);
1416 }