src/gallium/state_trackers/xorg/xorg_driver.c

   1 /*
   2  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  *
  26  * Author: Alan Hourihane <alanh@tungstengraphics.com>
  27  * Author: Jakob Bornecrantz <wallbraker@gmail.com>
  28  *
  29  */
  30
  31
  32 #include "xorg-server.h"
  33 #include "xf86.h"
  34 #include "xf86_OSproc.h"
  35 #include "compiler.h"
  36 #include "xf86PciInfo.h"
  37 #include "xf86Pci.h"
  38 #include "mipointer.h"
  39 #include "micmap.h"
  40 #include <X11/extensions/randr.h>
  41 #include "fb.h"
  42 #include "edid.h"
  43 #include "xf86i2c.h"
  44 #include "xf86Crtc.h"
  45 #include "miscstruct.h"
  46 #include "dixstruct.h"
  47 #include "xf86xv.h"
  48 #include <X11/extensions/Xv.h>
  49 #ifndef XSERVER_LIBPCIACCESS
  50 #error "libpciaccess needed"
  51 #endif
  52
  53 #include <pciaccess.h>
  54
  55 #include "pipe/p_context.h"
  56 #include "xorg_tracker.h"
  57 #include "xorg_winsys.h"
  58
  59 static void AdjustFrame(int scrnIndex, int x, int y, int flags);
  60 static Bool CloseScreen(int scrnIndex, ScreenPtr pScreen);
  61 static Bool EnterVT(int scrnIndex, int flags);
  62 static Bool SaveHWState(ScrnInfoPtr pScrn);
  63 static Bool RestoreHWState(ScrnInfoPtr pScrn);
  64
  65
  66 static ModeStatus ValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose,
  67                             int flags);
  68 static void FreeScreen(int scrnIndex, int flags);
  69 static void LeaveVT(int scrnIndex, int flags);
  70 static Bool SwitchMode(int scrnIndex, DisplayModePtr mode, int flags);
  71 static Bool ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc,
  72                        char **argv);
  73 static Bool PreInit(ScrnInfoPtr pScrn, int flags);
  74
  75 typedef enum
  76 {
  77     OPTION_SW_CURSOR,
  78 } modesettingOpts;
  79
  80 static const OptionInfoRec Options[] = {
  81     {OPTION_SW_CURSOR, "SWcursor", OPTV_BOOLEAN, {0}, FALSE},
  82     {-1, NULL, OPTV_NONE, {0}, FALSE}
  83 };
  84
  85 /*
  86  * Exported Xorg driver functions to winsys
  87  */
  88
  89 const OptionInfoRec *
  90 xorg_tracker_available_options(int chipid, int busid)
  91 {
  92     return Options;
  93 }
  94
  95 void
  96 xorg_tracker_set_functions(ScrnInfoPtr scrn)
  97 {
  98     scrn->PreInit = PreInit;
  99     scrn->ScreenInit = ScreenInit;
 100     scrn->SwitchMode = SwitchMode;
 101     scrn->AdjustFrame = AdjustFrame;
 102     scrn->EnterVT = EnterVT;
 103     scrn->LeaveVT = LeaveVT;
 104     scrn->FreeScreen = FreeScreen;
 105     scrn->ValidMode = ValidMode;
 106 }
 107
 108 /*
 109  * Static Xorg funtctions
 110  */
 111
 112 static Bool
 113 GetRec(ScrnInfoPtr pScrn)
 114 {
 115     if (pScrn->driverPrivate)
 116         return TRUE;
 117
 118     pScrn->driverPrivate = xnfcalloc(sizeof(modesettingRec), 1);
 119
 120     return TRUE;
 121 }
 122
 123 static void
 124 FreeRec(ScrnInfoPtr pScrn)
 125 {
 126     if (!pScrn)
 127         return;
 128
 129     if (!pScrn->driverPrivate)
 130         return;
 131
 132     xfree(pScrn->driverPrivate);
 133
 134     pScrn->driverPrivate = NULL;
 135 }
 136
 137 static void
 138 ProbeDDC(ScrnInfoPtr pScrn, int index)
 139 {
 140     ConfiguredMonitor = NULL;
 141 }
 142
 143 static Bool
 144 CreateFrontBuffer(ScrnInfoPtr pScrn)
 145 {
 146     modesettingPtr ms = modesettingPTR(pScrn);
 147     unsigned handle, stride;
 148     struct pipe_texture *tex;
 149
 150     ms->noEvict = TRUE;
 151
 152     tex = xorg_exa_create_root_texture(pScrn, pScrn->virtualX, pScrn->virtualY,
 153                                        pScrn->depth, pScrn->bitsPerPixel);
 154
 155     if (!tex)
 156         return FALSE;
 157
 158     if (!ms->api->local_handle_from_texture(ms->api, ms->screen,
 159                                             tex,
 160                                             &stride,
 161                                             &handle))
 162         return FALSE;
 163
 164     drmModeAddFB(ms->fd,
 165                  pScrn->virtualX,
 166                  pScrn->virtualY,
 167                  pScrn->depth,
 168                  pScrn->bitsPerPixel,
 169                  stride,
 170                  handle,
 171                  &ms->fb_id);
 172
 173     pScrn->frameX0 = 0;
 174     pScrn->frameY0 = 0;
 175     AdjustFrame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 176
 177     pipe_texture_reference(&ms->root_texture, tex);
 178     pipe_texture_reference(&tex, NULL);
 179     return TRUE;
 180 }
 181
 182 static Bool
 183 BindTextureToRoot(ScrnInfoPtr pScrn)
 184 {
 185     modesettingPtr ms = modesettingPTR(pScrn);
 186     ScreenPtr pScreen = pScrn->pScreen;
 187     struct pipe_texture *check;
 188     PixmapPtr rootPixmap;
 189
 190     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 191
 192     xorg_exa_set_displayed_usage(rootPixmap);
 193     xorg_exa_set_shared_usage(rootPixmap);
 194     xorg_exa_set_texture(rootPixmap, ms->root_texture);
 195     if (!pScreen->ModifyPixmapHeader(rootPixmap, -1, -1, -1, -1, -1, NULL))
 196         FatalError("Couldn't adjust screen pixmap\n");
 197
 198     check = xorg_exa_get_texture(rootPixmap);
 199     if (ms->root_texture != check)
 200         FatalError("Created new root texture\n");
 201
 202     pipe_texture_reference(&check, NULL);
 203
 204     return TRUE;
 205 }
 206
 207 static Bool
 208 crtc_resize(ScrnInfoPtr pScrn, int width, int height)
 209 {
 210     modesettingPtr ms = modesettingPTR(pScrn);
 211     unsigned handle, stride;
 212     PixmapPtr rootPixmap;
 213     ScreenPtr pScreen = pScrn->pScreen;
 214
 215     if (width == pScrn->virtualX && height == pScrn->virtualY)
 216         return TRUE;
 217
 218     ErrorF("RESIZING TO %dx%d\n", width, height);
 219
 220     pScrn->virtualX = width;
 221     pScrn->virtualY = height;
 222
 223     /*
 224      * Remove the old framebuffer & texture.
 225      */
 226     drmModeRmFB(ms->fd, ms->fb_id);
 227     pipe_texture_reference(&ms->root_texture, NULL);
 228
 229
 230     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 231     if (!pScreen->ModifyPixmapHeader(rootPixmap, width, height, -1, -1, -1, NULL))
 232         return FALSE;
 233
 234     /* takes one ref */
 235     ms->root_texture = xorg_exa_get_texture(rootPixmap);
 236
 237     if (!ms->api->local_handle_from_texture(ms->api, ms->screen,
 238                                             ms->root_texture,
 239                                             &stride,
 240                                             &handle))
 241         FatalError("Could not get handle and stride from texture\n");
 242
 243     drmModeAddFB(ms->fd,
 244                  pScrn->virtualX,
 245                  pScrn->virtualY,
 246                  pScrn->depth,
 247                  pScrn->bitsPerPixel,
 248                  stride,
 249                  handle,
 250                  &ms->fb_id);
 251
 252     /* HW dependent - FIXME */
 253     pScrn->displayWidth = pScrn->virtualX;
 254
 255     /* now create new frontbuffer */
 256     return CreateFrontBuffer(pScrn) && BindTextureToRoot(pScrn);
 257 }
 258
 259 static const xf86CrtcConfigFuncsRec crtc_config_funcs = {
 260     crtc_resize
 261 };
 262
 263 static Bool
 264 PreInit(ScrnInfoPtr pScrn, int flags)
 265 {
 266     xf86CrtcConfigPtr xf86_config;
 267     modesettingPtr ms;
 268     rgb defaultWeight = { 0, 0, 0 };
 269     EntityInfoPtr pEnt;
 270     EntPtr msEnt = NULL;
 271     char *BusID;
 272     int max_width, max_height;
 273
 274     if (pScrn->numEntities != 1)
 275         return FALSE;
 276
 277     pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
 278
 279     if (flags & PROBE_DETECT) {
 280         ProbeDDC(pScrn, pEnt->index);
 281         return TRUE;
 282     }
 283
 284     /* Allocate driverPrivate */
 285     if (!GetRec(pScrn))
 286         return FALSE;
 287
 288     ms = modesettingPTR(pScrn);
 289     ms->SaveGeneration = -1;
 290     ms->pEnt = pEnt;
 291
 292     pScrn->displayWidth = 640;         /* default it */
 293
 294     if (ms->pEnt->location.type != BUS_PCI)
 295         return FALSE;
 296
 297     ms->PciInfo = xf86GetPciInfoForEntity(ms->pEnt->index);
 298
 299     /* Allocate an entity private if necessary */
 300     if (xf86IsEntityShared(pScrn->entityList[0])) {
 301         FatalError("Entity");
 302 #if 0
 303         msEnt = xf86GetEntityPrivate(pScrn->entityList[0],
 304                                      modesettingEntityIndex)->ptr;
 305         ms->entityPrivate = msEnt;
 306 #else
 307         (void)msEnt;
 308 #endif
 309     } else
 310         ms->entityPrivate = NULL;
 311
 312     if (xf86IsEntityShared(pScrn->entityList[0])) {
 313         if (xf86IsPrimInitDone(pScrn->entityList[0])) {
 314             /* do something */
 315         } else {
 316             xf86SetPrimInitDone(pScrn->entityList[0]);
 317         }
 318     }
 319
 320     BusID = xalloc(64);
 321     sprintf(BusID, "PCI:%d:%d:%d",
 322             ((ms->PciInfo->domain << 8) | ms->PciInfo->bus),
 323             ms->PciInfo->dev, ms->PciInfo->func
 324         );
 325
 326     ms->api = drm_api_create();
 327     ms->fd = drmOpen(NULL, BusID);
 328
 329     if (ms->fd < 0)
 330         return FALSE;
 331
 332     pScrn->monitor = pScrn->confScreen->monitor;
 333     pScrn->progClock = TRUE;
 334     pScrn->rgbBits = 8;
 335
 336     if (!xf86SetDepthBpp
 337         (pScrn, 0, 0, 0,
 338          PreferConvert24to32 | SupportConvert24to32 | Support32bppFb))
 339         return FALSE;
 340
 341     switch (pScrn->depth) {
 342     case 15:
 343     case 16:
 344     case 24:
 345         break;
 346     default:
 347         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 348                    "Given depth (%d) is not supported by the driver\n",
 349                    pScrn->depth);
 350         return FALSE;
 351     }
 352     xf86PrintDepthBpp(pScrn);
 353
 354     if (!xf86SetWeight(pScrn, defaultWeight, defaultWeight))
 355         return FALSE;
 356     if (!xf86SetDefaultVisual(pScrn, -1))
 357         return FALSE;
 358
 359     /* Process the options */
 360     xf86CollectOptions(pScrn, NULL);
 361     if (!(ms->Options = xalloc(sizeof(Options))))
 362         return FALSE;
 363     memcpy(ms->Options, Options, sizeof(Options));
 364     xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, ms->Options);
 365
 366     /* Allocate an xf86CrtcConfig */
 367     xf86CrtcConfigInit(pScrn, &crtc_config_funcs);
 368     xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 369
 370     max_width = 8192;
 371     max_height = 8192;
 372     xf86CrtcSetSizeRange(pScrn, 320, 200, max_width, max_height);
 373
 374     if (xf86ReturnOptValBool(ms->Options, OPTION_SW_CURSOR, FALSE)) {
 375         ms->SWCursor = TRUE;
 376     }
 377
 378     SaveHWState(pScrn);
 379
 380     crtc_init(pScrn);
 381     output_init(pScrn);
 382
 383     if (!xf86InitialConfiguration(pScrn, TRUE)) {
 384         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes.\n");
 385         RestoreHWState(pScrn);
 386         return FALSE;
 387     }
 388
 389     RestoreHWState(pScrn);
 390
 391     /*
 392      * If the driver can do gamma correction, it should call xf86SetGamma() here.
 393      */
 394     {
 395         Gamma zeros = { 0.0, 0.0, 0.0 };
 396
 397         if (!xf86SetGamma(pScrn, zeros)) {
 398             return FALSE;
 399         }
 400     }
 401
 402     if (pScrn->modes == NULL) {
 403         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No modes.\n");
 404         return FALSE;
 405     }
 406
 407     pScrn->currentMode = pScrn->modes;
 408
 409     /* Set display resolution */
 410     xf86SetDpi(pScrn, 0, 0);
 411
 412     /* Load the required sub modules */
 413     if (!xf86LoadSubModule(pScrn, "fb")) {
 414         return FALSE;
 415     }
 416
 417     xf86LoadSubModule(pScrn, "exa");
 418
 419 #ifdef DRI2
 420     xf86LoadSubModule(pScrn, "dri2");
 421 #endif
 422
 423     return TRUE;
 424 }
 425
 426 static Bool
 427 SaveHWState(ScrnInfoPtr pScrn)
 428 {
 429     /*xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);*/
 430
 431     return TRUE;
 432 }
 433
 434 static Bool
 435 RestoreHWState(ScrnInfoPtr pScrn)
 436 {
 437     /*xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);*/
 438
 439     return TRUE;
 440 }
 441
 442 static void xorgBlockHandler(int i, pointer blockData, pointer pTimeout,
 443                              pointer pReadmask)
 444 {
 445     ScreenPtr pScreen = screenInfo.screens[i];
 446     modesettingPtr ms = modesettingPTR(xf86Screens[pScreen->myNum]);
 447
 448     pScreen->BlockHandler = ms->blockHandler;
 449     pScreen->BlockHandler(i, blockData, pTimeout, pReadmask);
 450     pScreen->BlockHandler = xorgBlockHandler;
 451
 452     ms->ctx->flush(ms->ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
 453
 454 #ifdef DRM_MODE_FEATURE_DIRTYFB
 455     {
 456         RegionPtr dirty = DamageRegion(ms->damage);
 457         unsigned num_cliprects = REGION_NUM_RECTS(dirty);
 458
 459         if (num_cliprects) {
 460             drmModeClip *clip = alloca(num_cliprects * sizeof(drmModeClip));
 461             BoxPtr rect = REGION_RECTS(dirty);
 462             int i;
 463
 464             for (i = 0; i < num_cliprects; i++, rect++) {
 465                 clip[i].x = rect->x1;
 466                 clip[i].y = rect->y1;
 467                 clip[i].width = rect->x2 - rect->x1;
 468                 clip[i].height = rect->y2 - rect->y1;
 469             }
 470
 471             /* TODO query connector property to see if this is needed */
 472             drmModeDirtyFB(ms->fd, ms->fb_id, clip, num_cliprects);
 473
 474             DamageEmpty(ms->damage);
 475         }
 476     }
 477 #endif
 478 }
 479
 480 static Bool
 481 CreateScreenResources(ScreenPtr pScreen)
 482 {
 483     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 484     modesettingPtr ms = modesettingPTR(pScrn);
 485     PixmapPtr rootPixmap;
 486     Bool ret;
 487
 488     ms->noEvict = TRUE;
 489
 490     pScreen->CreateScreenResources = ms->createScreenResources;
 491     ret = pScreen->CreateScreenResources(pScreen);
 492     pScreen->CreateScreenResources = CreateScreenResources;
 493
 494     BindTextureToRoot(pScrn);
 495
 496     ms->noEvict = FALSE;
 497
 498     AdjustFrame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 499
 500 #ifdef DRM_MODE_FEATURE_DIRTYFB
 501     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 502     ms->damage = DamageCreate(NULL, NULL, DamageReportNone, TRUE,
 503                               pScreen, rootPixmap);
 504
 505     if (ms->damage) {
 506        DamageRegister(&rootPixmap->drawable, ms->damage);
 507
 508        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Damage tracking initialized\n");
 509     } else {
 510        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 511                   "Failed to create screen damage record\n");
 512        return FALSE;
 513     }
 514 #else
 515     (void)rootPixmap;
 516 #endif
 517
 518     return ret;
 519 }
 520
 521 static Bool
 522 ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
 523 {
 524     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 525     modesettingPtr ms = modesettingPTR(pScrn);
 526     VisualPtr visual;
 527
 528     /* deal with server regeneration */
 529     if (ms->fd < 0) {
 530         char *BusID;
 531
 532         BusID = xalloc(64);
 533         sprintf(BusID, "PCI:%d:%d:%d",
 534                 ((ms->PciInfo->domain << 8) | ms->PciInfo->bus),
 535                 ms->PciInfo->dev, ms->PciInfo->func
 536             );
 537
 538         ms->fd = drmOpen(NULL, BusID);
 539
 540         if (ms->fd < 0)
 541             return FALSE;
 542     }
 543
 544     if (!ms->api)
 545         ms->api = drm_api_create();
 546
 547     if (!ms->screen) {
 548         ms->screen = ms->api->create_screen(ms->api, ms->fd, NULL);
 549
 550         if (!ms->screen) {
 551             FatalError("Could not init pipe_screen\n");
 552             return FALSE;
 553         }
 554     }
 555
 556     pScrn->pScreen = pScreen;
 557
 558     /* HW dependent - FIXME */
 559     pScrn->displayWidth = pScrn->virtualX;
 560
 561     miClearVisualTypes();
 562
 563     if (!miSetVisualTypes(pScrn->depth,
 564                           miGetDefaultVisualMask(pScrn->depth),
 565                           pScrn->rgbBits, pScrn->defaultVisual))
 566         return FALSE;
 567
 568     if (!miSetPixmapDepths())
 569         return FALSE;
 570
 571     pScrn->memPhysBase = 0;
 572     pScrn->fbOffset = 0;
 573
 574     if (!fbScreenInit(pScreen, NULL,
 575                       pScrn->virtualX, pScrn->virtualY,
 576                       pScrn->xDpi, pScrn->yDpi,
 577                       pScrn->displayWidth, pScrn->bitsPerPixel))
 578         return FALSE;
 579
 580     if (pScrn->bitsPerPixel > 8) {
 581         /* Fixup RGB ordering */
 582         visual = pScreen->visuals + pScreen->numVisuals;
 583         while (--visual >= pScreen->visuals) {
 584             if ((visual->class | DynamicClass) == DirectColor) {
 585                 visual->offsetRed = pScrn->offset.red;
 586                 visual->offsetGreen = pScrn->offset.green;
 587                 visual->offsetBlue = pScrn->offset.blue;
 588                 visual->redMask = pScrn->mask.red;
 589                 visual->greenMask = pScrn->mask.green;
 590                 visual->blueMask = pScrn->mask.blue;
 591             }
 592         }
 593     }
 594
 595     fbPictureInit(pScreen, NULL, 0);
 596
 597     ms->blockHandler = pScreen->BlockHandler;
 598     pScreen->BlockHandler = xorgBlockHandler;
 599     ms->createScreenResources = pScreen->CreateScreenResources;
 600     pScreen->CreateScreenResources = CreateScreenResources;
 601
 602     xf86SetBlackWhitePixels(pScreen);
 603
 604     ms->exa = xorg_exa_init(pScrn);
 605     ms->debug_fallback = debug_get_bool_option("XORG_DEBUG_FALLBACK", TRUE);
 606
 607     xorg_init_video(pScreen);
 608
 609     miInitializeBackingStore(pScreen);
 610     xf86SetBackingStore(pScreen);
 611     xf86SetSilkenMouse(pScreen);
 612     miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
 613
 614     /* Need to extend HWcursor support to handle mask interleave */
 615     if (!ms->SWCursor)
 616         xf86_cursors_init(pScreen, 64, 64,
 617                           HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 |
 618                           HARDWARE_CURSOR_ARGB);
 619
 620     /* Must force it before EnterVT, so we are in control of VT and
 621      * later memory should be bound when allocating, e.g rotate_mem */
 622     pScrn->vtSema = TRUE;
 623
 624     pScreen->SaveScreen = xf86SaveScreen;
 625     ms->CloseScreen = pScreen->CloseScreen;
 626     pScreen->CloseScreen = CloseScreen;
 627
 628     if (!xf86CrtcScreenInit(pScreen))
 629         return FALSE;
 630
 631     if (!miCreateDefColormap(pScreen))
 632         return FALSE;
 633
 634     xf86DPMSInit(pScreen, xf86DPMSSet, 0);
 635
 636     if (serverGeneration == 1)
 637         xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
 638
 639 #if 1
 640 #ifdef DRI2
 641     driScreenInit(pScreen);
 642 #endif
 643 #endif
 644
 645     return EnterVT(scrnIndex, 1);
 646 }
 647
 648 static void
 649 AdjustFrame(int scrnIndex, int x, int y, int flags)
 650 {
 651     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 652     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 653     xf86OutputPtr output = config->output[config->compat_output];
 654     xf86CrtcPtr crtc = output->crtc;
 655
 656     if (crtc && crtc->enabled) {
 657         crtc->funcs->set_mode_major(crtc, pScrn->currentMode,
 658                                     RR_Rotate_0, x, y);
 659         crtc->x = output->initial_x + x;
 660         crtc->y = output->initial_y + y;
 661     }
 662 }
 663
 664 static void
 665 FreeScreen(int scrnIndex, int flags)
 666 {
 667     FreeRec(xf86Screens[scrnIndex]);
 668 }
 669
 670 static void
 671 LeaveVT(int scrnIndex, int flags)
 672 {
 673     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 674     modesettingPtr ms = modesettingPTR(pScrn);
 675     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 676     int o;
 677
 678     for (o = 0; o < config->num_crtc; o++) {
 679         xf86CrtcPtr crtc = config->crtc[o];
 680
 681         crtc_cursor_destroy(crtc);
 682
 683         if (crtc->rotatedPixmap || crtc->rotatedData) {
 684             crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
 685                                         crtc->rotatedData);
 686             crtc->rotatedPixmap = NULL;
 687             crtc->rotatedData = NULL;
 688         }
 689     }
 690
 691     drmModeRmFB(ms->fd, ms->fb_id);
 692
 693     RestoreHWState(pScrn);
 694
 695     if (drmDropMaster(ms->fd))
 696         xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 697                    "drmDropMaster failed: %s\n", strerror(errno));
 698
 699     pScrn->vtSema = FALSE;
 700 }
 701
 702 /*
 703  * This gets called when gaining control of the VT, and from ScreenInit().
 704  */
 705 static Bool
 706 EnterVT(int scrnIndex, int flags)
 707 {
 708     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 709     modesettingPtr ms = modesettingPTR(pScrn);
 710
 711     if (drmSetMaster(ms->fd)) {
 712         if (errno == EINVAL) {
 713             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 714                        "drmSetMaster failed: 2.6.29 or newer kernel required for "
 715                        "multi-server DRI\n");
 716         } else {
 717             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 718                        "drmSetMaster failed: %s\n", strerror(errno));
 719         }
 720     }
 721
 722     /*
 723      * Only save state once per server generation since that's what most
 724      * drivers do.  Could change this to save state at each VT enter.
 725      */
 726     if (ms->SaveGeneration != serverGeneration) {
 727         ms->SaveGeneration = serverGeneration;
 728         SaveHWState(pScrn);
 729     }
 730
 731     if (!CreateFrontBuffer(pScrn))
 732         return FALSE;
 733
 734     if (!flags && !BindTextureToRoot(pScrn))
 735         return FALSE;
 736
 737     if (!xf86SetDesiredModes(pScrn))
 738         return FALSE;
 739
 740     return TRUE;
 741 }
 742
 743 static Bool
 744 SwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
 745 {
 746     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 747
 748     return xf86SetSingleMode(pScrn, mode, RR_Rotate_0);
 749 }
 750
 751 static Bool
 752 CloseScreen(int scrnIndex, ScreenPtr pScreen)
 753 {
 754     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 755     modesettingPtr ms = modesettingPTR(pScrn);
 756
 757     if (pScrn->vtSema) {
 758         LeaveVT(scrnIndex, 0);
 759     }
 760 #ifdef DRI2
 761     driCloseScreen(pScreen);
 762 #endif
 763
 764     pScreen->BlockHandler = ms->blockHandler;
 765     pScreen->CreateScreenResources = ms->createScreenResources;
 766
 767 #ifdef DRM_MODE_FEATURE_DIRTYFB
 768     if (ms->damage) {
 769         DamageUnregister(&pScreen->GetScreenPixmap(pScreen)->drawable, ms->damage);
 770         DamageDestroy(ms->damage);
 771         ms->damage = NULL;
 772     }
 773 #endif
 774
 775     pipe_texture_reference(&ms->root_texture, NULL);
 776
 777     if (ms->exa)
 778         xorg_exa_close(pScrn);
 779
 780     if (ms->api && ms->api->destroy)
 781         ms->api->destroy(ms->api);
 782     ms->api = NULL;
 783
 784     drmClose(ms->fd);
 785     ms->fd = -1;
 786
 787     pScrn->vtSema = FALSE;
 788     pScreen->CloseScreen = ms->CloseScreen;
 789     return (*pScreen->CloseScreen) (scrnIndex, pScreen);
 790 }
 791
 792 static ModeStatus
 793 ValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
 794 {
 795     return MODE_OK;
 796 }
 797
 798 /* vim: set sw=4 ts=8 sts=4: */