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 InitDRM(ScrnInfoPtr pScrn)
 265 {
 266     modesettingPtr ms = modesettingPTR(pScrn);
 267
 268     /* deal with server regeneration */
 269     if (ms->fd < 0) {
 270         char *BusID;
 271
 272         BusID = xalloc(64);
 273         sprintf(BusID, "PCI:%d:%d:%d",
 274                 ((ms->PciInfo->domain << 8) | ms->PciInfo->bus),
 275                 ms->PciInfo->dev, ms->PciInfo->func
 276             );
 277
 278         ms->fd = drmOpen(NULL, BusID);
 279
 280         if (ms->fd < 0)
 281             return FALSE;
 282     }
 283
 284     if (!ms->api) {
 285         ms->api = drm_api_create();
 286
 287         if (!ms->api)
 288             return FALSE;
 289     }
 290
 291     return TRUE;
 292 }
 293
 294 static Bool
 295 PreInit(ScrnInfoPtr pScrn, int flags)
 296 {
 297     xf86CrtcConfigPtr xf86_config;
 298     modesettingPtr ms;
 299     rgb defaultWeight = { 0, 0, 0 };
 300     EntityInfoPtr pEnt;
 301     EntPtr msEnt = NULL;
 302     int max_width, max_height;
 303
 304     if (pScrn->numEntities != 1)
 305         return FALSE;
 306
 307     pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
 308
 309     if (flags & PROBE_DETECT) {
 310         ProbeDDC(pScrn, pEnt->index);
 311         return TRUE;
 312     }
 313
 314     /* Allocate driverPrivate */
 315     if (!GetRec(pScrn))
 316         return FALSE;
 317
 318     ms = modesettingPTR(pScrn);
 319     ms->SaveGeneration = -1;
 320     ms->pEnt = pEnt;
 321
 322     pScrn->displayWidth = 640;         /* default it */
 323
 324     if (ms->pEnt->location.type != BUS_PCI)
 325         return FALSE;
 326
 327     ms->PciInfo = xf86GetPciInfoForEntity(ms->pEnt->index);
 328
 329     /* Allocate an entity private if necessary */
 330     if (xf86IsEntityShared(pScrn->entityList[0])) {
 331         FatalError("Entity");
 332 #if 0
 333         msEnt = xf86GetEntityPrivate(pScrn->entityList[0],
 334                                      modesettingEntityIndex)->ptr;
 335         ms->entityPrivate = msEnt;
 336 #else
 337         (void)msEnt;
 338 #endif
 339     } else
 340         ms->entityPrivate = NULL;
 341
 342     if (xf86IsEntityShared(pScrn->entityList[0])) {
 343         if (xf86IsPrimInitDone(pScrn->entityList[0])) {
 344             /* do something */
 345         } else {
 346             xf86SetPrimInitDone(pScrn->entityList[0]);
 347         }
 348     }
 349
 350     ms->fd = -1;
 351     ms->api = NULL;
 352     if (!InitDRM(pScrn))
 353         return FALSE;
 354
 355     pScrn->monitor = pScrn->confScreen->monitor;
 356     pScrn->progClock = TRUE;
 357     pScrn->rgbBits = 8;
 358
 359     if (!xf86SetDepthBpp
 360         (pScrn, 0, 0, 0,
 361          PreferConvert24to32 | SupportConvert24to32 | Support32bppFb))
 362         return FALSE;
 363
 364     switch (pScrn->depth) {
 365     case 15:
 366     case 16:
 367     case 24:
 368         break;
 369     default:
 370         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 371                    "Given depth (%d) is not supported by the driver\n",
 372                    pScrn->depth);
 373         return FALSE;
 374     }
 375     xf86PrintDepthBpp(pScrn);
 376
 377     if (!xf86SetWeight(pScrn, defaultWeight, defaultWeight))
 378         return FALSE;
 379     if (!xf86SetDefaultVisual(pScrn, -1))
 380         return FALSE;
 381
 382     /* Process the options */
 383     xf86CollectOptions(pScrn, NULL);
 384     if (!(ms->Options = xalloc(sizeof(Options))))
 385         return FALSE;
 386     memcpy(ms->Options, Options, sizeof(Options));
 387     xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, ms->Options);
 388
 389     /* Allocate an xf86CrtcConfig */
 390     xf86CrtcConfigInit(pScrn, &crtc_config_funcs);
 391     xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 392
 393     max_width = 8192;
 394     max_height = 8192;
 395     xf86CrtcSetSizeRange(pScrn, 320, 200, max_width, max_height);
 396
 397     if (xf86ReturnOptValBool(ms->Options, OPTION_SW_CURSOR, FALSE)) {
 398         ms->SWCursor = TRUE;
 399     }
 400
 401     SaveHWState(pScrn);
 402
 403     crtc_init(pScrn);
 404     output_init(pScrn);
 405
 406     if (!xf86InitialConfiguration(pScrn, TRUE)) {
 407         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes.\n");
 408         RestoreHWState(pScrn);
 409         return FALSE;
 410     }
 411
 412     RestoreHWState(pScrn);
 413
 414     /*
 415      * If the driver can do gamma correction, it should call xf86SetGamma() here.
 416      */
 417     {
 418         Gamma zeros = { 0.0, 0.0, 0.0 };
 419
 420         if (!xf86SetGamma(pScrn, zeros)) {
 421             return FALSE;
 422         }
 423     }
 424
 425     if (pScrn->modes == NULL) {
 426         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No modes.\n");
 427         return FALSE;
 428     }
 429
 430     pScrn->currentMode = pScrn->modes;
 431
 432     /* Set display resolution */
 433     xf86SetDpi(pScrn, 0, 0);
 434
 435     /* Load the required sub modules */
 436     if (!xf86LoadSubModule(pScrn, "fb")) {
 437         return FALSE;
 438     }
 439
 440     xf86LoadSubModule(pScrn, "exa");
 441
 442 #ifdef DRI2
 443     xf86LoadSubModule(pScrn, "dri2");
 444 #endif
 445
 446     return TRUE;
 447 }
 448
 449 static Bool
 450 SaveHWState(ScrnInfoPtr pScrn)
 451 {
 452     /*xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);*/
 453
 454     return TRUE;
 455 }
 456
 457 static Bool
 458 RestoreHWState(ScrnInfoPtr pScrn)
 459 {
 460     /*xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);*/
 461
 462     return TRUE;
 463 }
 464
 465 static void xorgBlockHandler(int i, pointer blockData, pointer pTimeout,
 466                              pointer pReadmask)
 467 {
 468     ScreenPtr pScreen = screenInfo.screens[i];
 469     modesettingPtr ms = modesettingPTR(xf86Screens[pScreen->myNum]);
 470
 471     pScreen->BlockHandler = ms->blockHandler;
 472     pScreen->BlockHandler(i, blockData, pTimeout, pReadmask);
 473     pScreen->BlockHandler = xorgBlockHandler;
 474
 475     ms->ctx->flush(ms->ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
 476
 477 #ifdef DRM_MODE_FEATURE_DIRTYFB
 478     {
 479         RegionPtr dirty = DamageRegion(ms->damage);
 480         unsigned num_cliprects = REGION_NUM_RECTS(dirty);
 481
 482         if (num_cliprects) {
 483             drmModeClip *clip = alloca(num_cliprects * sizeof(drmModeClip));
 484             BoxPtr rect = REGION_RECTS(dirty);
 485             int i;
 486
 487             for (i = 0; i < num_cliprects; i++, rect++) {
 488                 clip[i].x = rect->x1;
 489                 clip[i].y = rect->y1;
 490                 clip[i].width = rect->x2 - rect->x1;
 491                 clip[i].height = rect->y2 - rect->y1;
 492             }
 493
 494             /* TODO query connector property to see if this is needed */
 495             drmModeDirtyFB(ms->fd, ms->fb_id, clip, num_cliprects);
 496
 497             DamageEmpty(ms->damage);
 498         }
 499     }
 500 #endif
 501 }
 502
 503 static Bool
 504 CreateScreenResources(ScreenPtr pScreen)
 505 {
 506     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 507     modesettingPtr ms = modesettingPTR(pScrn);
 508     PixmapPtr rootPixmap;
 509     Bool ret;
 510
 511     ms->noEvict = TRUE;
 512
 513     pScreen->CreateScreenResources = ms->createScreenResources;
 514     ret = pScreen->CreateScreenResources(pScreen);
 515     pScreen->CreateScreenResources = CreateScreenResources;
 516
 517     BindTextureToRoot(pScrn);
 518
 519     ms->noEvict = FALSE;
 520
 521     AdjustFrame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 522
 523 #ifdef DRM_MODE_FEATURE_DIRTYFB
 524     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 525     ms->damage = DamageCreate(NULL, NULL, DamageReportNone, TRUE,
 526                               pScreen, rootPixmap);
 527
 528     if (ms->damage) {
 529        DamageRegister(&rootPixmap->drawable, ms->damage);
 530
 531        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Damage tracking initialized\n");
 532     } else {
 533        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 534                   "Failed to create screen damage record\n");
 535        return FALSE;
 536     }
 537 #else
 538     (void)rootPixmap;
 539 #endif
 540
 541     return ret;
 542 }
 543
 544 static Bool
 545 ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
 546 {
 547     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 548     modesettingPtr ms = modesettingPTR(pScrn);
 549     VisualPtr visual;
 550
 551     if (!InitDRM(pScrn))
 552         return FALSE;
 553
 554     if (!ms->screen) {
 555         ms->screen = ms->api->create_screen(ms->api, ms->fd, NULL);
 556
 557         if (!ms->screen) {
 558             FatalError("Could not init pipe_screen\n");
 559             return FALSE;
 560         }
 561     }
 562
 563     pScrn->pScreen = pScreen;
 564
 565     /* HW dependent - FIXME */
 566     pScrn->displayWidth = pScrn->virtualX;
 567
 568     miClearVisualTypes();
 569
 570     if (!miSetVisualTypes(pScrn->depth,
 571                           miGetDefaultVisualMask(pScrn->depth),
 572                           pScrn->rgbBits, pScrn->defaultVisual))
 573         return FALSE;
 574
 575     if (!miSetPixmapDepths())
 576         return FALSE;
 577
 578     pScrn->memPhysBase = 0;
 579     pScrn->fbOffset = 0;
 580
 581     if (!fbScreenInit(pScreen, NULL,
 582                       pScrn->virtualX, pScrn->virtualY,
 583                       pScrn->xDpi, pScrn->yDpi,
 584                       pScrn->displayWidth, pScrn->bitsPerPixel))
 585         return FALSE;
 586
 587     if (pScrn->bitsPerPixel > 8) {
 588         /* Fixup RGB ordering */
 589         visual = pScreen->visuals + pScreen->numVisuals;
 590         while (--visual >= pScreen->visuals) {
 591             if ((visual->class | DynamicClass) == DirectColor) {
 592                 visual->offsetRed = pScrn->offset.red;
 593                 visual->offsetGreen = pScrn->offset.green;
 594                 visual->offsetBlue = pScrn->offset.blue;
 595                 visual->redMask = pScrn->mask.red;
 596                 visual->greenMask = pScrn->mask.green;
 597                 visual->blueMask = pScrn->mask.blue;
 598             }
 599         }
 600     }
 601
 602     fbPictureInit(pScreen, NULL, 0);
 603
 604     ms->blockHandler = pScreen->BlockHandler;
 605     pScreen->BlockHandler = xorgBlockHandler;
 606     ms->createScreenResources = pScreen->CreateScreenResources;
 607     pScreen->CreateScreenResources = CreateScreenResources;
 608
 609     xf86SetBlackWhitePixels(pScreen);
 610
 611     ms->exa = xorg_exa_init(pScrn);
 612     ms->debug_fallback = debug_get_bool_option("XORG_DEBUG_FALLBACK", TRUE);
 613
 614     xorg_init_video(pScreen);
 615
 616     miInitializeBackingStore(pScreen);
 617     xf86SetBackingStore(pScreen);
 618     xf86SetSilkenMouse(pScreen);
 619     miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
 620
 621     /* Need to extend HWcursor support to handle mask interleave */
 622     if (!ms->SWCursor)
 623         xf86_cursors_init(pScreen, 64, 64,
 624                           HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 |
 625                           HARDWARE_CURSOR_ARGB);
 626
 627     /* Must force it before EnterVT, so we are in control of VT and
 628      * later memory should be bound when allocating, e.g rotate_mem */
 629     pScrn->vtSema = TRUE;
 630
 631     pScreen->SaveScreen = xf86SaveScreen;
 632     ms->CloseScreen = pScreen->CloseScreen;
 633     pScreen->CloseScreen = CloseScreen;
 634
 635     if (!xf86CrtcScreenInit(pScreen))
 636         return FALSE;
 637
 638     if (!miCreateDefColormap(pScreen))
 639         return FALSE;
 640
 641     xf86DPMSInit(pScreen, xf86DPMSSet, 0);
 642
 643     if (serverGeneration == 1)
 644         xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
 645
 646 #if 1
 647 #ifdef DRI2
 648     driScreenInit(pScreen);
 649 #endif
 650 #endif
 651
 652     return EnterVT(scrnIndex, 1);
 653 }
 654
 655 static void
 656 AdjustFrame(int scrnIndex, int x, int y, int flags)
 657 {
 658     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 659     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 660     xf86OutputPtr output = config->output[config->compat_output];
 661     xf86CrtcPtr crtc = output->crtc;
 662
 663     if (crtc && crtc->enabled) {
 664         crtc->funcs->set_mode_major(crtc, pScrn->currentMode,
 665                                     RR_Rotate_0, x, y);
 666         crtc->x = output->initial_x + x;
 667         crtc->y = output->initial_y + y;
 668     }
 669 }
 670
 671 static void
 672 FreeScreen(int scrnIndex, int flags)
 673 {
 674     FreeRec(xf86Screens[scrnIndex]);
 675 }
 676
 677 static void
 678 LeaveVT(int scrnIndex, int flags)
 679 {
 680     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 681     modesettingPtr ms = modesettingPTR(pScrn);
 682     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 683     int o;
 684
 685     for (o = 0; o < config->num_crtc; o++) {
 686         xf86CrtcPtr crtc = config->crtc[o];
 687
 688         crtc_cursor_destroy(crtc);
 689
 690         if (crtc->rotatedPixmap || crtc->rotatedData) {
 691             crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
 692                                         crtc->rotatedData);
 693             crtc->rotatedPixmap = NULL;
 694             crtc->rotatedData = NULL;
 695         }
 696     }
 697
 698     drmModeRmFB(ms->fd, ms->fb_id);
 699
 700     RestoreHWState(pScrn);
 701
 702     if (drmDropMaster(ms->fd))
 703         xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 704                    "drmDropMaster failed: %s\n", strerror(errno));
 705
 706     pScrn->vtSema = FALSE;
 707 }
 708
 709 /*
 710  * This gets called when gaining control of the VT, and from ScreenInit().
 711  */
 712 static Bool
 713 EnterVT(int scrnIndex, int flags)
 714 {
 715     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 716     modesettingPtr ms = modesettingPTR(pScrn);
 717
 718     if (drmSetMaster(ms->fd)) {
 719         if (errno == EINVAL) {
 720             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 721                        "drmSetMaster failed: 2.6.29 or newer kernel required for "
 722                        "multi-server DRI\n");
 723         } else {
 724             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 725                        "drmSetMaster failed: %s\n", strerror(errno));
 726         }
 727     }
 728
 729     /*
 730      * Only save state once per server generation since that's what most
 731      * drivers do.  Could change this to save state at each VT enter.
 732      */
 733     if (ms->SaveGeneration != serverGeneration) {
 734         ms->SaveGeneration = serverGeneration;
 735         SaveHWState(pScrn);
 736     }
 737
 738     if (!CreateFrontBuffer(pScrn))
 739         return FALSE;
 740
 741     if (!flags && !BindTextureToRoot(pScrn))
 742         return FALSE;
 743
 744     if (!xf86SetDesiredModes(pScrn))
 745         return FALSE;
 746
 747     return TRUE;
 748 }
 749
 750 static Bool
 751 SwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
 752 {
 753     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 754
 755     return xf86SetSingleMode(pScrn, mode, RR_Rotate_0);
 756 }
 757
 758 static Bool
 759 CloseScreen(int scrnIndex, ScreenPtr pScreen)
 760 {
 761     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 762     modesettingPtr ms = modesettingPTR(pScrn);
 763
 764     if (pScrn->vtSema) {
 765         LeaveVT(scrnIndex, 0);
 766     }
 767 #ifdef DRI2
 768     driCloseScreen(pScreen);
 769 #endif
 770
 771     pScreen->BlockHandler = ms->blockHandler;
 772     pScreen->CreateScreenResources = ms->createScreenResources;
 773
 774 #ifdef DRM_MODE_FEATURE_DIRTYFB
 775     if (ms->damage) {
 776         DamageUnregister(&pScreen->GetScreenPixmap(pScreen)->drawable, ms->damage);
 777         DamageDestroy(ms->damage);
 778         ms->damage = NULL;
 779     }
 780 #endif
 781
 782     pipe_texture_reference(&ms->root_texture, NULL);
 783
 784     if (ms->exa)
 785         xorg_exa_close(pScrn);
 786
 787     if (ms->api && ms->api->destroy)
 788         ms->api->destroy(ms->api);
 789     ms->api = NULL;
 790
 791     drmClose(ms->fd);
 792     ms->fd = -1;
 793
 794     pScrn->vtSema = FALSE;
 795     pScreen->CloseScreen = ms->CloseScreen;
 796     return (*pScreen->CloseScreen) (scrnIndex, pScreen);
 797 }
 798
 799 static ModeStatus
 800 ValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
 801 {
 802     return MODE_OK;
 803 }
 804
 805 /* vim: set sw=4 ts=8 sts=4: */