drivers/staging/omapdrm/omap_drv.c

   1 /*
   2  * drivers/staging/omapdrm/omap_drv.c
   3  *
   4  * Copyright (C) 2011 Texas Instruments
   5  * Author: Rob Clark <rob@ti.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 as published by
   9  * the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "omap_drv.h"
  21
  22 #include "drm_crtc_helper.h"
  23 #include "drm_fb_helper.h"
  24
  25 #define DRIVER_NAME             MODULE_NAME
  26 #define DRIVER_DESC             "OMAP DRM"
  27 #define DRIVER_DATE             "20110917"
  28 #define DRIVER_MAJOR            1
  29 #define DRIVER_MINOR            0
  30 #define DRIVER_PATCHLEVEL       0
  31
  32 struct drm_device *drm_device;
  33
  34 static int num_crtc = CONFIG_DRM_OMAP_NUM_CRTCS;
  35
  36 MODULE_PARM_DESC(num_crtc, "Number of overlays to use as CRTCs");
  37 module_param(num_crtc, int, 0600);
  38
  39 /*
  40  * mode config funcs
  41  */
  42
  43 /* Notes about mapping DSS and DRM entities:
  44  *    CRTC:        overlay
  45  *    encoder:     manager.. with some extension to allow one primary CRTC
  46  *                 and zero or more video CRTC's to be mapped to one encoder?
  47  *    connector:   dssdev.. manager can be attached/detached from different
  48  *                 devices
  49  */
  50
  51 static void omap_fb_output_poll_changed(struct drm_device *dev)
  52 {
  53         struct omap_drm_private *priv = dev->dev_private;
  54         DBG("dev=%p", dev);
  55         if (priv->fbdev) {
  56                 drm_fb_helper_hotplug_event(priv->fbdev);
  57         }
  58 }
  59
  60 static struct drm_mode_config_funcs omap_mode_config_funcs = {
  61         .fb_create = omap_framebuffer_create,
  62         .output_poll_changed = omap_fb_output_poll_changed,
  63 };
  64
  65 static int get_connector_type(struct omap_dss_device *dssdev)
  66 {
  67         switch (dssdev->type) {
  68         case OMAP_DISPLAY_TYPE_HDMI:
  69                 return DRM_MODE_CONNECTOR_HDMIA;
  70         case OMAP_DISPLAY_TYPE_DPI:
  71                 if (!strcmp(dssdev->name, "dvi"))
  72                         return DRM_MODE_CONNECTOR_DVID;
  73                 /* fallthrough */
  74         default:
  75                 return DRM_MODE_CONNECTOR_Unknown;
  76         }
  77 }
  78
  79 #if 0 /* enable when dss2 supports hotplug */
  80 static int omap_drm_notifier(struct notifier_block *nb,
  81                 unsigned long evt, void *arg)
  82 {
  83         switch (evt) {
  84         case OMAP_DSS_SIZE_CHANGE:
  85         case OMAP_DSS_HOTPLUG_CONNECT:
  86         case OMAP_DSS_HOTPLUG_DISCONNECT: {
  87                 struct drm_device *dev = drm_device;
  88                 DBG("hotplug event: evt=%d, dev=%p", evt, dev);
  89                 if (dev) {
  90                         drm_sysfs_hotplug_event(dev);
  91                 }
  92                 return NOTIFY_OK;
  93         }
  94         default:  /* don't care about other events for now */
  95                 return NOTIFY_DONE;
  96         }
  97 }
  98 #endif
  99
 100 static void dump_video_chains(void)
 101 {
 102         int i;
 103
 104         DBG("dumping video chains: ");
 105         for (i = 0; i < omap_dss_get_num_overlays(); i++) {
 106                 struct omap_overlay *ovl = omap_dss_get_overlay(i);
 107                 struct omap_overlay_manager *mgr = ovl->manager;
 108                 struct omap_dss_device *dssdev = mgr ? mgr->device : NULL;
 109                 if (dssdev) {
 110                         DBG("%d: %s -> %s -> %s", i, ovl->name, mgr->name,
 111                                                 dssdev->name);
 112                 } else if (mgr) {
 113                         DBG("%d: %s -> %s", i, ovl->name, mgr->name);
 114                 } else {
 115                         DBG("%d: %s", i, ovl->name);
 116                 }
 117         }
 118 }
 119
 120 /* create encoders for each manager */
 121 static int create_encoder(struct drm_device *dev,
 122                 struct omap_overlay_manager *mgr)
 123 {
 124         struct omap_drm_private *priv = dev->dev_private;
 125         struct drm_encoder *encoder = omap_encoder_init(dev, mgr);
 126
 127         if (!encoder) {
 128                 dev_err(dev->dev, "could not create encoder: %s\n",
 129                                 mgr->name);
 130                 return -ENOMEM;
 131         }
 132
 133         BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders));
 134
 135         priv->encoders[priv->num_encoders++] = encoder;
 136
 137         return 0;
 138 }
 139
 140 /* create connectors for each display device */
 141 static int create_connector(struct drm_device *dev,
 142                 struct omap_dss_device *dssdev)
 143 {
 144         struct omap_drm_private *priv = dev->dev_private;
 145         static struct notifier_block *notifier;
 146         struct drm_connector *connector;
 147         int j;
 148
 149         if (!dssdev->driver) {
 150                 dev_warn(dev->dev, "%s has no driver.. skipping it\n",
 151                                 dssdev->name);
 152                 return 0;
 153         }
 154
 155         if (!(dssdev->driver->get_timings ||
 156                                 dssdev->driver->read_edid)) {
 157                 dev_warn(dev->dev, "%s driver does not support "
 158                         "get_timings or read_edid.. skipping it!\n",
 159                         dssdev->name);
 160                 return 0;
 161         }
 162
 163         connector = omap_connector_init(dev,
 164                         get_connector_type(dssdev), dssdev);
 165
 166         if (!connector) {
 167                 dev_err(dev->dev, "could not create connector: %s\n",
 168                                 dssdev->name);
 169                 return -ENOMEM;
 170         }
 171
 172         BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors));
 173
 174         priv->connectors[priv->num_connectors++] = connector;
 175
 176 #if 0 /* enable when dss2 supports hotplug */
 177         notifier = kzalloc(sizeof(struct notifier_block), GFP_KERNEL);
 178         notifier->notifier_call = omap_drm_notifier;
 179         omap_dss_add_notify(dssdev, notifier);
 180 #else
 181         notifier = NULL;
 182 #endif
 183
 184         for (j = 0; j < priv->num_encoders; j++) {
 185                 struct omap_overlay_manager *mgr =
 186                         omap_encoder_get_manager(priv->encoders[j]);
 187                 if (mgr->device == dssdev) {
 188                         drm_mode_connector_attach_encoder(connector,
 189                                         priv->encoders[j]);
 190                 }
 191         }
 192
 193         return 0;
 194 }
 195
 196 /* create up to max_overlays CRTCs mapping to overlays.. by default,
 197  * connect the overlays to different managers/encoders, giving priority
 198  * to encoders connected to connectors with a detected connection
 199  */
 200 static int create_crtc(struct drm_device *dev, struct omap_overlay *ovl,
 201                 int *j, unsigned int connected_connectors)
 202 {
 203         struct omap_drm_private *priv = dev->dev_private;
 204         struct omap_overlay_manager *mgr = NULL;
 205         struct drm_crtc *crtc;
 206
 207         if (ovl->manager) {
 208                 DBG("disconnecting %s from %s", ovl->name,
 209                                         ovl->manager->name);
 210                 ovl->unset_manager(ovl);
 211         }
 212
 213         /* find next best connector, ones with detected connection first
 214          */
 215         while (*j < priv->num_connectors && !mgr) {
 216                 if (connected_connectors & (1 << *j)) {
 217                         struct drm_encoder *encoder =
 218                                 omap_connector_attached_encoder(
 219                                                 priv->connectors[*j]);
 220                         if (encoder) {
 221                                 mgr = omap_encoder_get_manager(encoder);
 222                         }
 223                 }
 224                 (*j)++;
 225         }
 226
 227         /* if we couldn't find another connected connector, lets start
 228          * looking at the unconnected connectors:
 229          *
 230          * note: it might not be immediately apparent, but thanks to
 231          * the !mgr check in both this loop and the one above, the only
 232          * way to enter this loop is with *j == priv->num_connectors,
 233          * so idx can never go negative.
 234          */
 235         while (*j < 2 * priv->num_connectors && !mgr) {
 236                 int idx = *j - priv->num_connectors;
 237                 if (!(connected_connectors & (1 << idx))) {
 238                         struct drm_encoder *encoder =
 239                                 omap_connector_attached_encoder(
 240                                                 priv->connectors[idx]);
 241                         if (encoder) {
 242                                 mgr = omap_encoder_get_manager(encoder);
 243                         }
 244                 }
 245                 (*j)++;
 246         }
 247
 248         if (mgr) {
 249                 DBG("connecting %s to %s", ovl->name, mgr->name);
 250                 ovl->set_manager(ovl, mgr);
 251         }
 252
 253         crtc = omap_crtc_init(dev, ovl, priv->num_crtcs);
 254
 255         if (!crtc) {
 256                 dev_err(dev->dev, "could not create CRTC: %s\n",
 257                                 ovl->name);
 258                 return -ENOMEM;
 259         }
 260
 261         BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs));
 262
 263         priv->crtcs[priv->num_crtcs++] = crtc;
 264
 265         return 0;
 266 }
 267
 268 static int match_dev_name(struct omap_dss_device *dssdev, void *data)
 269 {
 270         return !strcmp(dssdev->name, data);
 271 }
 272
 273 static unsigned int detect_connectors(struct drm_device *dev)
 274 {
 275         struct omap_drm_private *priv = dev->dev_private;
 276         unsigned int connected_connectors = 0;
 277         int i;
 278
 279         for (i = 0; i < priv->num_connectors; i++) {
 280                 struct drm_connector *connector = priv->connectors[i];
 281                 if (omap_connector_detect(connector, true) ==
 282                                 connector_status_connected) {
 283                         connected_connectors |= (1 << i);
 284                 }
 285         }
 286
 287         return connected_connectors;
 288 }
 289
 290 static int omap_modeset_init(struct drm_device *dev)
 291 {
 292         const struct omap_drm_platform_data *pdata = dev->dev->platform_data;
 293         struct omap_drm_private *priv = dev->dev_private;
 294         struct omap_dss_device *dssdev = NULL;
 295         int i, j;
 296         unsigned int connected_connectors = 0;
 297
 298         drm_mode_config_init(dev);
 299
 300         if (pdata) {
 301                 /* if platform data is provided by the board file, use it to
 302                  * control which overlays, managers, and devices we own.
 303                  */
 304                 for (i = 0; i < pdata->mgr_cnt; i++) {
 305                         struct omap_overlay_manager *mgr =
 306                                         omap_dss_get_overlay_manager(pdata->mgr_ids[i]);
 307                         create_encoder(dev, mgr);
 308                 }
 309
 310                 for (i = 0; i < pdata->dev_cnt; i++) {
 311                         struct omap_dss_device *dssdev =
 312                                 omap_dss_find_device(
 313                                         (void *)pdata->dev_names[i], match_dev_name);
 314                         if (!dssdev) {
 315                                 dev_warn(dev->dev, "no such dssdev: %s\n",
 316                                                 pdata->dev_names[i]);
 317                                 continue;
 318                         }
 319                         create_connector(dev, dssdev);
 320                 }
 321
 322                 connected_connectors = detect_connectors(dev);
 323
 324                 j = 0;
 325                 for (i = 0; i < pdata->ovl_cnt; i++) {
 326                         struct omap_overlay *ovl =
 327                                         omap_dss_get_overlay(pdata->ovl_ids[i]);
 328                         create_crtc(dev, ovl, &j, connected_connectors);
 329                 }
 330         } else {
 331                 /* otherwise just grab up to CONFIG_DRM_OMAP_NUM_CRTCS and try
 332                  * to make educated guesses about everything else
 333                  */
 334                 int max_overlays = min(omap_dss_get_num_overlays(), num_crtc);
 335
 336                 for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
 337                         create_encoder(dev, omap_dss_get_overlay_manager(i));
 338                 }
 339
 340                 for_each_dss_dev(dssdev) {
 341                         create_connector(dev, dssdev);
 342                 }
 343
 344                 connected_connectors = detect_connectors(dev);
 345
 346                 j = 0;
 347                 for (i = 0; i < max_overlays; i++) {
 348                         create_crtc(dev, omap_dss_get_overlay(i),
 349                                         &j, connected_connectors);
 350                 }
 351         }
 352
 353         /* for now keep the mapping of CRTCs and encoders static.. */
 354         for (i = 0; i < priv->num_encoders; i++) {
 355                 struct drm_encoder *encoder = priv->encoders[i];
 356                 struct omap_overlay_manager *mgr =
 357                                 omap_encoder_get_manager(encoder);
 358
 359                 encoder->possible_crtcs = 0;
 360
 361                 for (j = 0; j < priv->num_crtcs; j++) {
 362                         struct omap_overlay *ovl =
 363                                         omap_crtc_get_overlay(priv->crtcs[j]);
 364                         if (ovl->manager == mgr) {
 365                                 encoder->possible_crtcs |= (1 << j);
 366                         }
 367                 }
 368
 369                 DBG("%s: possible_crtcs=%08x", mgr->name,
 370                                         encoder->possible_crtcs);
 371         }
 372
 373         dump_video_chains();
 374
 375         dev->mode_config.min_width = 256;
 376         dev->mode_config.min_height = 256;
 377
 378         /* note: eventually will need some cpu_is_omapXYZ() type stuff here
 379          * to fill in these limits properly on different OMAP generations..
 380          */
 381         dev->mode_config.max_width = 2048;
 382         dev->mode_config.max_height = 2048;
 383
 384         dev->mode_config.funcs = &omap_mode_config_funcs;
 385
 386         return 0;
 387 }
 388
 389 static void omap_modeset_free(struct drm_device *dev)
 390 {
 391         drm_mode_config_cleanup(dev);
 392 }
 393
 394 /*
 395  * drm ioctl funcs
 396  */
 397
 398
 399 static int ioctl_get_param(struct drm_device *dev, void *data,
 400                 struct drm_file *file_priv)
 401 {
 402         struct drm_omap_param *args = data;
 403
 404         DBG("%p: param=%llu", dev, args->param);
 405
 406         switch (args->param) {
 407         case OMAP_PARAM_CHIPSET_ID:
 408                 args->value = GET_OMAP_TYPE;
 409                 break;
 410         default:
 411                 DBG("unknown parameter %lld", args->param);
 412                 return -EINVAL;
 413         }
 414
 415         return 0;
 416 }
 417
 418 static int ioctl_set_param(struct drm_device *dev, void *data,
 419                 struct drm_file *file_priv)
 420 {
 421         struct drm_omap_param *args = data;
 422
 423         switch (args->param) {
 424         default:
 425                 DBG("unknown parameter %lld", args->param);
 426                 return -EINVAL;
 427         }
 428
 429         return 0;
 430 }
 431
 432 static int ioctl_gem_new(struct drm_device *dev, void *data,
 433                 struct drm_file *file_priv)
 434 {
 435         struct drm_omap_gem_new *args = data;
 436         DBG("%p:%p: size=0x%08x, flags=%08x", dev, file_priv,
 437                         args->size.bytes, args->flags);
 438         return omap_gem_new_handle(dev, file_priv, args->size,
 439                         args->flags, &args->handle);
 440 }
 441
 442 static int ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
 443                 struct drm_file *file_priv)
 444 {
 445         struct drm_omap_gem_cpu_prep *args = data;
 446         struct drm_gem_object *obj;
 447         int ret;
 448
 449         VERB("%p:%p: handle=%d, op=%x", dev, file_priv, args->handle, args->op);
 450
 451         obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 452         if (!obj) {
 453                 return -ENOENT;
 454         }
 455
 456         ret = omap_gem_op_sync(obj, args->op);
 457
 458         if (!ret) {
 459                 ret = omap_gem_op_start(obj, args->op);
 460         }
 461
 462         drm_gem_object_unreference_unlocked(obj);
 463
 464         return ret;
 465 }
 466
 467 static int ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
 468                 struct drm_file *file_priv)
 469 {
 470         struct drm_omap_gem_cpu_fini *args = data;
 471         struct drm_gem_object *obj;
 472         int ret;
 473
 474         VERB("%p:%p: handle=%d", dev, file_priv, args->handle);
 475
 476         obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 477         if (!obj) {
 478                 return -ENOENT;
 479         }
 480
 481         /* XXX flushy, flushy */
 482         ret = 0;
 483
 484         if (!ret) {
 485                 ret = omap_gem_op_finish(obj, args->op);
 486         }
 487
 488         drm_gem_object_unreference_unlocked(obj);
 489
 490         return ret;
 491 }
 492
 493 static int ioctl_gem_info(struct drm_device *dev, void *data,
 494                 struct drm_file *file_priv)
 495 {
 496         struct drm_omap_gem_info *args = data;
 497         struct drm_gem_object *obj;
 498         int ret = 0;
 499
 500         DBG("%p:%p: handle=%d", dev, file_priv, args->handle);
 501
 502         obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 503         if (!obj) {
 504                 return -ENOENT;
 505         }
 506
 507         args->size = obj->size;  /* for now */
 508         args->offset = omap_gem_mmap_offset(obj);
 509
 510         drm_gem_object_unreference_unlocked(obj);
 511
 512         return ret;
 513 }
 514
 515 struct drm_ioctl_desc ioctls[DRM_COMMAND_END - DRM_COMMAND_BASE] = {
 516         DRM_IOCTL_DEF_DRV(OMAP_GET_PARAM, ioctl_get_param, DRM_UNLOCKED|DRM_AUTH),
 517         DRM_IOCTL_DEF_DRV(OMAP_SET_PARAM, ioctl_set_param, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 518         DRM_IOCTL_DEF_DRV(OMAP_GEM_NEW, ioctl_gem_new, DRM_UNLOCKED|DRM_AUTH),
 519         DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_PREP, ioctl_gem_cpu_prep, DRM_UNLOCKED|DRM_AUTH),
 520         DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_FINI, ioctl_gem_cpu_fini, DRM_UNLOCKED|DRM_AUTH),
 521         DRM_IOCTL_DEF_DRV(OMAP_GEM_INFO, ioctl_gem_info, DRM_UNLOCKED|DRM_AUTH),
 522 };
 523
 524 /*
 525  * drm driver funcs
 526  */
 527
 528 /**
 529  * load - setup chip and create an initial config
 530  * @dev: DRM device
 531  * @flags: startup flags
 532  *
 533  * The driver load routine has to do several things:
 534  *   - initialize the memory manager
 535  *   - allocate initial config memory
 536  *   - setup the DRM framebuffer with the allocated memory
 537  */
 538 static int dev_load(struct drm_device *dev, unsigned long flags)
 539 {
 540         struct omap_drm_private *priv;
 541         int ret;
 542
 543         DBG("load: dev=%p", dev);
 544
 545         drm_device = dev;
 546
 547         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 548         if (!priv) {
 549                 dev_err(dev->dev, "could not allocate priv\n");
 550                 return -ENOMEM;
 551         }
 552
 553         dev->dev_private = priv;
 554
 555         ret = omap_modeset_init(dev);
 556         if (ret) {
 557                 dev_err(dev->dev, "omap_modeset_init failed: ret=%d\n", ret);
 558                 dev->dev_private = NULL;
 559                 kfree(priv);
 560                 return ret;
 561         }
 562
 563         priv->fbdev = omap_fbdev_init(dev);
 564         if (!priv->fbdev) {
 565                 dev_warn(dev->dev, "omap_fbdev_init failed\n");
 566                 /* well, limp along without an fbdev.. maybe X11 will work? */
 567         }
 568
 569         drm_kms_helper_poll_init(dev);
 570
 571         ret = drm_vblank_init(dev, priv->num_crtcs);
 572         if (ret) {
 573                 dev_warn(dev->dev, "could not init vblank\n");
 574         }
 575
 576         return 0;
 577 }
 578
 579 static int dev_unload(struct drm_device *dev)
 580 {
 581         DBG("unload: dev=%p", dev);
 582
 583         drm_vblank_cleanup(dev);
 584         drm_kms_helper_poll_fini(dev);
 585
 586         omap_fbdev_free(dev);
 587
 588         omap_modeset_free(dev);
 589
 590         kfree(dev->dev_private);
 591         dev->dev_private = NULL;
 592
 593         return 0;
 594 }
 595
 596 static int dev_open(struct drm_device *dev, struct drm_file *file)
 597 {
 598         file->driver_priv = NULL;
 599
 600         DBG("open: dev=%p, file=%p", dev, file);
 601
 602         return 0;
 603 }
 604
 605 static int dev_firstopen(struct drm_device *dev)
 606 {
 607         DBG("firstopen: dev=%p", dev);
 608         return 0;
 609 }
 610
 611 /**
 612  * lastclose - clean up after all DRM clients have exited
 613  * @dev: DRM device
 614  *
 615  * Take care of cleaning up after all DRM clients have exited.  In the
 616  * mode setting case, we want to restore the kernel's initial mode (just
 617  * in case the last client left us in a bad state).
 618  */
 619 static void dev_lastclose(struct drm_device *dev)
 620 {
 621         /* we don't support vga-switcheroo.. so just make sure the fbdev
 622          * mode is active
 623          */
 624         struct omap_drm_private *priv = dev->dev_private;
 625         int ret;
 626
 627         DBG("lastclose: dev=%p", dev);
 628
 629         ret = drm_fb_helper_restore_fbdev_mode(priv->fbdev);
 630         if (ret)
 631                 DBG("failed to restore crtc mode");
 632 }
 633
 634 static void dev_preclose(struct drm_device *dev, struct drm_file *file)
 635 {
 636         DBG("preclose: dev=%p", dev);
 637 }
 638
 639 static void dev_postclose(struct drm_device *dev, struct drm_file *file)
 640 {
 641         DBG("postclose: dev=%p, file=%p", dev, file);
 642 }
 643
 644 /**
 645  * enable_vblank - enable vblank interrupt events
 646  * @dev: DRM device
 647  * @crtc: which irq to enable
 648  *
 649  * Enable vblank interrupts for @crtc.  If the device doesn't have
 650  * a hardware vblank counter, this routine should be a no-op, since
 651  * interrupts will have to stay on to keep the count accurate.
 652  *
 653  * RETURNS
 654  * Zero on success, appropriate errno if the given @crtc's vblank
 655  * interrupt cannot be enabled.
 656  */
 657 static int dev_enable_vblank(struct drm_device *dev, int crtc)
 658 {
 659         DBG("enable_vblank: dev=%p, crtc=%d", dev, crtc);
 660         return 0;
 661 }
 662
 663 /**
 664  * disable_vblank - disable vblank interrupt events
 665  * @dev: DRM device
 666  * @crtc: which irq to enable
 667  *
 668  * Disable vblank interrupts for @crtc.  If the device doesn't have
 669  * a hardware vblank counter, this routine should be a no-op, since
 670  * interrupts will have to stay on to keep the count accurate.
 671  */
 672 static void dev_disable_vblank(struct drm_device *dev, int crtc)
 673 {
 674         DBG("disable_vblank: dev=%p, crtc=%d", dev, crtc);
 675 }
 676
 677 static irqreturn_t dev_irq_handler(DRM_IRQ_ARGS)
 678 {
 679         return IRQ_HANDLED;
 680 }
 681
 682 static void dev_irq_preinstall(struct drm_device *dev)
 683 {
 684         DBG("irq_preinstall: dev=%p", dev);
 685 }
 686
 687 static int dev_irq_postinstall(struct drm_device *dev)
 688 {
 689         DBG("irq_postinstall: dev=%p", dev);
 690         return 0;
 691 }
 692
 693 static void dev_irq_uninstall(struct drm_device *dev)
 694 {
 695         DBG("irq_uninstall: dev=%p", dev);
 696 }
 697
 698 static struct vm_operations_struct omap_gem_vm_ops = {
 699         .fault = omap_gem_fault,
 700         .open = drm_gem_vm_open,
 701         .close = drm_gem_vm_close,
 702 };
 703
 704 static struct drm_driver omap_drm_driver = {
 705                 .driver_features =
 706                                 DRIVER_HAVE_IRQ | DRIVER_MODESET | DRIVER_GEM,
 707                 .load = dev_load,
 708                 .unload = dev_unload,
 709                 .open = dev_open,
 710                 .firstopen = dev_firstopen,
 711                 .lastclose = dev_lastclose,
 712                 .preclose = dev_preclose,
 713                 .postclose = dev_postclose,
 714                 .get_vblank_counter = drm_vblank_count,
 715                 .enable_vblank = dev_enable_vblank,
 716                 .disable_vblank = dev_disable_vblank,
 717                 .irq_preinstall = dev_irq_preinstall,
 718                 .irq_postinstall = dev_irq_postinstall,
 719                 .irq_uninstall = dev_irq_uninstall,
 720                 .irq_handler = dev_irq_handler,
 721                 .reclaim_buffers = drm_core_reclaim_buffers,
 722                 .gem_init_object = omap_gem_init_object,
 723                 .gem_free_object = omap_gem_free_object,
 724                 .gem_vm_ops = &omap_gem_vm_ops,
 725                 .dumb_create = omap_gem_dumb_create,
 726                 .dumb_map_offset = omap_gem_dumb_map_offset,
 727                 .dumb_destroy = omap_gem_dumb_destroy,
 728                 .ioctls = ioctls,
 729                 .num_ioctls = DRM_OMAP_NUM_IOCTLS,
 730                 .fops = {
 731                                 .owner = THIS_MODULE,
 732                                 .open = drm_open,
 733                                 .unlocked_ioctl = drm_ioctl,
 734                                 .release = drm_release,
 735                                 .mmap = omap_gem_mmap,
 736                                 .poll = drm_poll,
 737                                 .fasync = drm_fasync,
 738                                 .read = drm_read,
 739                                 .llseek = noop_llseek,
 740                 },
 741                 .name = DRIVER_NAME,
 742                 .desc = DRIVER_DESC,
 743                 .date = DRIVER_DATE,
 744                 .major = DRIVER_MAJOR,
 745                 .minor = DRIVER_MINOR,
 746                 .patchlevel = DRIVER_PATCHLEVEL,
 747 };
 748
 749 static int pdev_suspend(struct platform_device *pDevice, pm_message_t state)
 750 {
 751         DBG("");
 752         return 0;
 753 }
 754
 755 static int pdev_resume(struct platform_device *device)
 756 {
 757         DBG("");
 758         return 0;
 759 }
 760
 761 static void pdev_shutdown(struct platform_device *device)
 762 {
 763         DBG("");
 764 }
 765
 766 static int pdev_probe(struct platform_device *device)
 767 {
 768         DBG("%s", device->name);
 769         return drm_platform_init(&omap_drm_driver, device);
 770 }
 771
 772 static int pdev_remove(struct platform_device *device)
 773 {
 774         DBG("");
 775         drm_platform_exit(&omap_drm_driver, device);
 776         return 0;
 777 }
 778
 779 struct platform_driver pdev = {
 780                 .driver = {
 781                         .name = DRIVER_NAME,
 782                         .owner = THIS_MODULE,
 783                 },
 784                 .probe = pdev_probe,
 785                 .remove = pdev_remove,
 786                 .suspend = pdev_suspend,
 787                 .resume = pdev_resume,
 788                 .shutdown = pdev_shutdown,
 789 };
 790
 791 static int __init omap_drm_init(void)
 792 {
 793         DBG("init");
 794         return platform_driver_register(&pdev);
 795 }
 796
 797 static void __exit omap_drm_fini(void)
 798 {
 799         DBG("fini");
 800         platform_driver_unregister(&pdev);
 801 }
 802
 803 /* need late_initcall() so we load after dss_driver's are loaded */
 804 late_initcall(omap_drm_init);
 805 module_exit(omap_drm_fini);
 806
 807 MODULE_AUTHOR("Rob Clark <rob@ti.com>");
 808 MODULE_DESCRIPTION("OMAP DRM Display Driver");
 809 MODULE_ALIAS("platform:" DRIVER_NAME);
 810 MODULE_LICENSE("GPL v2");