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