drivers/video/omap2/omapfb/omapfb-ioctl.c

   1 /*
   2  * linux/drivers/video/omap2/omapfb-ioctl.c
   3  *
   4  * Copyright (C) 2008 Nokia Corporation
   5  * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
   6  *
   7  * Some code and ideas taken from drivers/video/omap/ driver
   8  * by Imre Deak.
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License version 2 as published by
  12  * the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but WITHOUT
  15  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  17  * more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along with
  20  * this program.  If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #include <linux/fb.h>
  24 #include <linux/device.h>
  25 #include <linux/uaccess.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/mm.h>
  28 #include <linux/omapfb.h>
  29 #include <linux/vmalloc.h>
  30 #include <linux/export.h>
  31
  32 #include <video/omapdss.h>
  33 #include <plat/vrfb.h>
  34 #include <plat/vram.h>
  35
  36 #include "omapfb.h"
  37
  38 static u8 get_mem_idx(struct omapfb_info *ofbi)
  39 {
  40         if (ofbi->id == ofbi->region->id)
  41                 return 0;
  42
  43         return OMAPFB_MEM_IDX_ENABLED | ofbi->region->id;
  44 }
  45
  46 static struct omapfb2_mem_region *get_mem_region(struct omapfb_info *ofbi,
  47                                                  u8 mem_idx)
  48 {
  49         struct omapfb2_device *fbdev = ofbi->fbdev;
  50
  51         if (mem_idx & OMAPFB_MEM_IDX_ENABLED)
  52                 mem_idx &= OMAPFB_MEM_IDX_MASK;
  53         else
  54                 mem_idx = ofbi->id;
  55
  56         if (mem_idx >= fbdev->num_fbs)
  57                 return NULL;
  58
  59         return &fbdev->regions[mem_idx];
  60 }
  61
  62 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
  63 {
  64         struct omapfb_info *ofbi = FB2OFB(fbi);
  65         struct omapfb2_device *fbdev = ofbi->fbdev;
  66         struct omap_overlay *ovl;
  67         struct omap_overlay_info old_info;
  68         struct omapfb2_mem_region *old_rg, *new_rg;
  69         int r = 0;
  70
  71         DBG("omapfb_setup_plane\n");
  72
  73         if (ofbi->num_overlays == 0) {
  74                 r = -EINVAL;
  75                 goto out;
  76         }
  77
  78         /* XXX uses only the first overlay */
  79         ovl = ofbi->overlays[0];
  80
  81         old_rg = ofbi->region;
  82         new_rg = get_mem_region(ofbi, pi->mem_idx);
  83         if (!new_rg) {
  84                 r = -EINVAL;
  85                 goto out;
  86         }
  87
  88         /* Take the locks in a specific order to keep lockdep happy */
  89         if (old_rg->id < new_rg->id) {
  90                 omapfb_get_mem_region(old_rg);
  91                 omapfb_get_mem_region(new_rg);
  92         } else if (new_rg->id < old_rg->id) {
  93                 omapfb_get_mem_region(new_rg);
  94                 omapfb_get_mem_region(old_rg);
  95         } else
  96                 omapfb_get_mem_region(old_rg);
  97
  98         if (pi->enabled && !new_rg->size) {
  99                 /*
 100                  * This plane's memory was freed, can't enable it
 101                  * until it's reallocated.
 102                  */
 103                 r = -EINVAL;
 104                 goto put_mem;
 105         }
 106
 107         ovl->get_overlay_info(ovl, &old_info);
 108
 109         if (old_rg != new_rg) {
 110                 ofbi->region = new_rg;
 111                 set_fb_fix(fbi);
 112         }
 113
 114         if (pi->enabled) {
 115                 struct omap_overlay_info info;
 116
 117                 r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
 118                         pi->out_width, pi->out_height);
 119                 if (r)
 120                         goto undo;
 121
 122                 ovl->get_overlay_info(ovl, &info);
 123
 124                 if (!info.enabled) {
 125                         info.enabled = pi->enabled;
 126                         r = ovl->set_overlay_info(ovl, &info);
 127                         if (r)
 128                                 goto undo;
 129                 }
 130         } else {
 131                 struct omap_overlay_info info;
 132
 133                 ovl->get_overlay_info(ovl, &info);
 134
 135                 info.enabled = pi->enabled;
 136                 info.pos_x = pi->pos_x;
 137                 info.pos_y = pi->pos_y;
 138                 info.out_width = pi->out_width;
 139                 info.out_height = pi->out_height;
 140
 141                 r = ovl->set_overlay_info(ovl, &info);
 142                 if (r)
 143                         goto undo;
 144         }
 145
 146         if (ovl->manager)
 147                 ovl->manager->apply(ovl->manager);
 148
 149         /* Release the locks in a specific order to keep lockdep happy */
 150         if (old_rg->id > new_rg->id) {
 151                 omapfb_put_mem_region(old_rg);
 152                 omapfb_put_mem_region(new_rg);
 153         } else if (new_rg->id > old_rg->id) {
 154                 omapfb_put_mem_region(new_rg);
 155                 omapfb_put_mem_region(old_rg);
 156         } else
 157                 omapfb_put_mem_region(old_rg);
 158
 159         return 0;
 160
 161  undo:
 162         if (old_rg != new_rg) {
 163                 ofbi->region = old_rg;
 164                 set_fb_fix(fbi);
 165         }
 166
 167         ovl->set_overlay_info(ovl, &old_info);
 168  put_mem:
 169         /* Release the locks in a specific order to keep lockdep happy */
 170         if (old_rg->id > new_rg->id) {
 171                 omapfb_put_mem_region(old_rg);
 172                 omapfb_put_mem_region(new_rg);
 173         } else if (new_rg->id > old_rg->id) {
 174                 omapfb_put_mem_region(new_rg);
 175                 omapfb_put_mem_region(old_rg);
 176         } else
 177                 omapfb_put_mem_region(old_rg);
 178  out:
 179         dev_err(fbdev->dev, "setup_plane failed\n");
 180
 181         return r;
 182 }
 183
 184 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 185 {
 186         struct omapfb_info *ofbi = FB2OFB(fbi);
 187
 188         if (ofbi->num_overlays == 0) {
 189                 memset(pi, 0, sizeof(*pi));
 190         } else {
 191                 struct omap_overlay *ovl;
 192                 struct omap_overlay_info *ovli;
 193
 194                 ovl = ofbi->overlays[0];
 195                 ovli = &ovl->info;
 196
 197                 pi->pos_x = ovli->pos_x;
 198                 pi->pos_y = ovli->pos_y;
 199                 pi->enabled = ovli->enabled;
 200                 pi->channel_out = 0; /* xxx */
 201                 pi->mirror = 0;
 202                 pi->mem_idx = get_mem_idx(ofbi);
 203                 pi->out_width = ovli->out_width;
 204                 pi->out_height = ovli->out_height;
 205         }
 206
 207         return 0;
 208 }
 209
 210 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 211 {
 212         struct omapfb_info *ofbi = FB2OFB(fbi);
 213         struct omapfb2_device *fbdev = ofbi->fbdev;
 214         struct omapfb2_mem_region *rg;
 215         int r = 0, i;
 216         size_t size;
 217
 218         if (mi->type > OMAPFB_MEMTYPE_MAX)
 219                 return -EINVAL;
 220
 221         size = PAGE_ALIGN(mi->size);
 222
 223         rg = ofbi->region;
 224
 225         down_write_nested(&rg->lock, rg->id);
 226         atomic_inc(&rg->lock_count);
 227
 228         if (rg->size == size && rg->type == mi->type)
 229                 goto out;
 230
 231         if (atomic_read(&rg->map_count)) {
 232                 r = -EBUSY;
 233                 goto out;
 234         }
 235
 236         for (i = 0; i < fbdev->num_fbs; i++) {
 237                 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
 238                 int j;
 239
 240                 if (ofbi2->region != rg)
 241                         continue;
 242
 243                 for (j = 0; j < ofbi2->num_overlays; j++) {
 244                         if (ofbi2->overlays[j]->info.enabled) {
 245                                 r = -EBUSY;
 246                                 goto out;
 247                         }
 248                 }
 249         }
 250
 251         r = omapfb_realloc_fbmem(fbi, size, mi->type);
 252         if (r) {
 253                 dev_err(fbdev->dev, "realloc fbmem failed\n");
 254                 goto out;
 255         }
 256
 257  out:
 258         atomic_dec(&rg->lock_count);
 259         up_write(&rg->lock);
 260
 261         return r;
 262 }
 263
 264 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 265 {
 266         struct omapfb_info *ofbi = FB2OFB(fbi);
 267         struct omapfb2_mem_region *rg;
 268
 269         rg = omapfb_get_mem_region(ofbi->region);
 270         memset(mi, 0, sizeof(*mi));
 271
 272         mi->size = rg->size;
 273         mi->type = rg->type;
 274
 275         omapfb_put_mem_region(rg);
 276
 277         return 0;
 278 }
 279
 280 static int omapfb_update_window_nolock(struct fb_info *fbi,
 281                 u32 x, u32 y, u32 w, u32 h)
 282 {
 283         struct omap_dss_device *display = fb2display(fbi);
 284         u16 dw, dh;
 285
 286         if (!display)
 287                 return 0;
 288
 289         if (w == 0 || h == 0)
 290                 return 0;
 291
 292         display->driver->get_resolution(display, &dw, &dh);
 293
 294         if (x + w > dw || y + h > dh)
 295                 return -EINVAL;
 296
 297         return display->driver->update(display, x, y, w, h);
 298 }
 299
 300 /* This function is exported for SGX driver use */
 301 int omapfb_update_window(struct fb_info *fbi,
 302                 u32 x, u32 y, u32 w, u32 h)
 303 {
 304         struct omapfb_info *ofbi = FB2OFB(fbi);
 305         struct omapfb2_device *fbdev = ofbi->fbdev;
 306         int r;
 307
 308         if (!lock_fb_info(fbi))
 309                 return -ENODEV;
 310         omapfb_lock(fbdev);
 311
 312         r = omapfb_update_window_nolock(fbi, x, y, w, h);
 313
 314         omapfb_unlock(fbdev);
 315         unlock_fb_info(fbi);
 316
 317         return r;
 318 }
 319 EXPORT_SYMBOL(omapfb_update_window);
 320
 321 int omapfb_set_update_mode(struct fb_info *fbi,
 322                                    enum omapfb_update_mode mode)
 323 {
 324         struct omap_dss_device *display = fb2display(fbi);
 325         struct omapfb_info *ofbi = FB2OFB(fbi);
 326         struct omapfb2_device *fbdev = ofbi->fbdev;
 327         struct omapfb_display_data *d;
 328         int r;
 329
 330         if (!display)
 331                 return -EINVAL;
 332
 333         if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
 334                 return -EINVAL;
 335
 336         omapfb_lock(fbdev);
 337
 338         d = get_display_data(fbdev, display);
 339
 340         if (d->update_mode == mode) {
 341                 omapfb_unlock(fbdev);
 342                 return 0;
 343         }
 344
 345         r = 0;
 346
 347         if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
 348                 if (mode == OMAPFB_AUTO_UPDATE)
 349                         omapfb_start_auto_update(fbdev, display);
 350                 else /* MANUAL_UPDATE */
 351                         omapfb_stop_auto_update(fbdev, display);
 352
 353                 d->update_mode = mode;
 354         } else { /* AUTO_UPDATE */
 355                 if (mode == OMAPFB_MANUAL_UPDATE)
 356                         r = -EINVAL;
 357         }
 358
 359         omapfb_unlock(fbdev);
 360
 361         return r;
 362 }
 363
 364 int omapfb_get_update_mode(struct fb_info *fbi,
 365                 enum omapfb_update_mode *mode)
 366 {
 367         struct omap_dss_device *display = fb2display(fbi);
 368         struct omapfb_info *ofbi = FB2OFB(fbi);
 369         struct omapfb2_device *fbdev = ofbi->fbdev;
 370         struct omapfb_display_data *d;
 371
 372         if (!display)
 373                 return -EINVAL;
 374
 375         omapfb_lock(fbdev);
 376
 377         d = get_display_data(fbdev, display);
 378
 379         *mode = d->update_mode;
 380
 381         omapfb_unlock(fbdev);
 382
 383         return 0;
 384 }
 385
 386 /* XXX this color key handling is a hack... */
 387 static struct omapfb_color_key omapfb_color_keys[2];
 388
 389 static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
 390                 struct omapfb_color_key *ck)
 391 {
 392         struct omap_overlay_manager_info info;
 393         enum omap_dss_trans_key_type kt;
 394         int r;
 395
 396         mgr->get_manager_info(mgr, &info);
 397
 398         if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
 399                 info.trans_enabled = false;
 400                 omapfb_color_keys[mgr->id] = *ck;
 401
 402                 r = mgr->set_manager_info(mgr, &info);
 403                 if (r)
 404                         return r;
 405
 406                 r = mgr->apply(mgr);
 407
 408                 return r;
 409         }
 410
 411         switch (ck->key_type) {
 412         case OMAPFB_COLOR_KEY_GFX_DST:
 413                 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
 414                 break;
 415         case OMAPFB_COLOR_KEY_VID_SRC:
 416                 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
 417                 break;
 418         default:
 419                 return -EINVAL;
 420         }
 421
 422         info.default_color = ck->background;
 423         info.trans_key = ck->trans_key;
 424         info.trans_key_type = kt;
 425         info.trans_enabled = true;
 426
 427         omapfb_color_keys[mgr->id] = *ck;
 428
 429         r = mgr->set_manager_info(mgr, &info);
 430         if (r)
 431                 return r;
 432
 433         r = mgr->apply(mgr);
 434
 435         return r;
 436 }
 437
 438 static int omapfb_set_color_key(struct fb_info *fbi,
 439                 struct omapfb_color_key *ck)
 440 {
 441         struct omapfb_info *ofbi = FB2OFB(fbi);
 442         struct omapfb2_device *fbdev = ofbi->fbdev;
 443         int r;
 444         int i;
 445         struct omap_overlay_manager *mgr = NULL;
 446
 447         omapfb_lock(fbdev);
 448
 449         for (i = 0; i < ofbi->num_overlays; i++) {
 450                 if (ofbi->overlays[i]->manager) {
 451                         mgr = ofbi->overlays[i]->manager;
 452                         break;
 453                 }
 454         }
 455
 456         if (!mgr) {
 457                 r = -EINVAL;
 458                 goto err;
 459         }
 460
 461         r = _omapfb_set_color_key(mgr, ck);
 462 err:
 463         omapfb_unlock(fbdev);
 464
 465         return r;
 466 }
 467
 468 static int omapfb_get_color_key(struct fb_info *fbi,
 469                 struct omapfb_color_key *ck)
 470 {
 471         struct omapfb_info *ofbi = FB2OFB(fbi);
 472         struct omapfb2_device *fbdev = ofbi->fbdev;
 473         struct omap_overlay_manager *mgr = NULL;
 474         int r = 0;
 475         int i;
 476
 477         omapfb_lock(fbdev);
 478
 479         for (i = 0; i < ofbi->num_overlays; i++) {
 480                 if (ofbi->overlays[i]->manager) {
 481                         mgr = ofbi->overlays[i]->manager;
 482                         break;
 483                 }
 484         }
 485
 486         if (!mgr) {
 487                 r = -EINVAL;
 488                 goto err;
 489         }
 490
 491         *ck = omapfb_color_keys[mgr->id];
 492 err:
 493         omapfb_unlock(fbdev);
 494
 495         return r;
 496 }
 497
 498 static int omapfb_memory_read(struct fb_info *fbi,
 499                 struct omapfb_memory_read *mr)
 500 {
 501         struct omap_dss_device *display = fb2display(fbi);
 502         void *buf;
 503         int r;
 504
 505         if (!display || !display->driver->memory_read)
 506                 return -ENOENT;
 507
 508         if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
 509                 return -EFAULT;
 510
 511         if (mr->w * mr->h * 3 > mr->buffer_size)
 512                 return -EINVAL;
 513
 514         buf = vmalloc(mr->buffer_size);
 515         if (!buf) {
 516                 DBG("vmalloc failed\n");
 517                 return -ENOMEM;
 518         }
 519
 520         r = display->driver->memory_read(display, buf, mr->buffer_size,
 521                         mr->x, mr->y, mr->w, mr->h);
 522
 523         if (r > 0) {
 524                 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
 525                         r = -EFAULT;
 526         }
 527
 528         vfree(buf);
 529
 530         return r;
 531 }
 532
 533 static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
 534                              struct omapfb_ovl_colormode *mode)
 535 {
 536         int ovl_idx = mode->overlay_idx;
 537         int mode_idx = mode->mode_idx;
 538         struct omap_overlay *ovl;
 539         enum omap_color_mode supported_modes;
 540         struct fb_var_screeninfo var;
 541         int i;
 542
 543         if (ovl_idx >= fbdev->num_overlays)
 544                 return -ENODEV;
 545         ovl = fbdev->overlays[ovl_idx];
 546         supported_modes = ovl->supported_modes;
 547
 548         mode_idx = mode->mode_idx;
 549
 550         for (i = 0; i < sizeof(supported_modes) * 8; i++) {
 551                 if (!(supported_modes & (1 << i)))
 552                         continue;
 553                 /*
 554                  * It's possible that the FB doesn't support a mode
 555                  * that is supported by the overlay, so call the
 556                  * following here.
 557                  */
 558                 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
 559                         continue;
 560
 561                 mode_idx--;
 562                 if (mode_idx < 0)
 563                         break;
 564         }
 565
 566         if (i == sizeof(supported_modes) * 8)
 567                 return -ENOENT;
 568
 569         mode->bits_per_pixel = var.bits_per_pixel;
 570         mode->nonstd = var.nonstd;
 571         mode->red = var.red;
 572         mode->green = var.green;
 573         mode->blue = var.blue;
 574         mode->transp = var.transp;
 575
 576         return 0;
 577 }
 578
 579 static int omapfb_wait_for_go(struct fb_info *fbi)
 580 {
 581         struct omapfb_info *ofbi = FB2OFB(fbi);
 582         int r = 0;
 583         int i;
 584
 585         for (i = 0; i < ofbi->num_overlays; ++i) {
 586                 struct omap_overlay *ovl = ofbi->overlays[i];
 587                 r = ovl->wait_for_go(ovl);
 588                 if (r)
 589                         break;
 590         }
 591
 592         return r;
 593 }
 594
 595 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 596 {
 597         struct omapfb_info *ofbi = FB2OFB(fbi);
 598         struct omapfb2_device *fbdev = ofbi->fbdev;
 599         struct omap_dss_device *display = fb2display(fbi);
 600
 601         union {
 602                 struct omapfb_update_window_old uwnd_o;
 603                 struct omapfb_update_window     uwnd;
 604                 struct omapfb_plane_info        plane_info;
 605                 struct omapfb_caps              caps;
 606                 struct omapfb_mem_info          mem_info;
 607                 struct omapfb_color_key         color_key;
 608                 struct omapfb_ovl_colormode     ovl_colormode;
 609                 enum omapfb_update_mode         update_mode;
 610                 int test_num;
 611                 struct omapfb_memory_read       memory_read;
 612                 struct omapfb_vram_info         vram_info;
 613                 struct omapfb_tearsync_info     tearsync_info;
 614                 struct omapfb_display_info      display_info;
 615                 u32                             crt;
 616         } p;
 617
 618         int r = 0;
 619
 620         switch (cmd) {
 621         case OMAPFB_SYNC_GFX:
 622                 DBG("ioctl SYNC_GFX\n");
 623                 if (!display || !display->driver->sync) {
 624                         /* DSS1 never returns an error here, so we neither */
 625                         /*r = -EINVAL;*/
 626                         break;
 627                 }
 628
 629                 r = display->driver->sync(display);
 630                 break;
 631
 632         case OMAPFB_UPDATE_WINDOW_OLD:
 633                 DBG("ioctl UPDATE_WINDOW_OLD\n");
 634                 if (!display || !display->driver->update) {
 635                         r = -EINVAL;
 636                         break;
 637                 }
 638
 639                 if (copy_from_user(&p.uwnd_o,
 640                                         (void __user *)arg,
 641                                         sizeof(p.uwnd_o))) {
 642                         r = -EFAULT;
 643                         break;
 644                 }
 645
 646                 r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
 647                                 p.uwnd_o.width, p.uwnd_o.height);
 648                 break;
 649
 650         case OMAPFB_UPDATE_WINDOW:
 651                 DBG("ioctl UPDATE_WINDOW\n");
 652                 if (!display || !display->driver->update) {
 653                         r = -EINVAL;
 654                         break;
 655                 }
 656
 657                 if (copy_from_user(&p.uwnd, (void __user *)arg,
 658                                         sizeof(p.uwnd))) {
 659                         r = -EFAULT;
 660                         break;
 661                 }
 662
 663                 r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
 664                                 p.uwnd.width, p.uwnd.height);
 665                 break;
 666
 667         case OMAPFB_SETUP_PLANE:
 668                 DBG("ioctl SETUP_PLANE\n");
 669                 if (copy_from_user(&p.plane_info, (void __user *)arg,
 670                                         sizeof(p.plane_info)))
 671                         r = -EFAULT;
 672                 else
 673                         r = omapfb_setup_plane(fbi, &p.plane_info);
 674                 break;
 675
 676         case OMAPFB_QUERY_PLANE:
 677                 DBG("ioctl QUERY_PLANE\n");
 678                 r = omapfb_query_plane(fbi, &p.plane_info);
 679                 if (r < 0)
 680                         break;
 681                 if (copy_to_user((void __user *)arg, &p.plane_info,
 682                                         sizeof(p.plane_info)))
 683                         r = -EFAULT;
 684                 break;
 685
 686         case OMAPFB_SETUP_MEM:
 687                 DBG("ioctl SETUP_MEM\n");
 688                 if (copy_from_user(&p.mem_info, (void __user *)arg,
 689                                         sizeof(p.mem_info)))
 690                         r = -EFAULT;
 691                 else
 692                         r = omapfb_setup_mem(fbi, &p.mem_info);
 693                 break;
 694
 695         case OMAPFB_QUERY_MEM:
 696                 DBG("ioctl QUERY_MEM\n");
 697                 r = omapfb_query_mem(fbi, &p.mem_info);
 698                 if (r < 0)
 699                         break;
 700                 if (copy_to_user((void __user *)arg, &p.mem_info,
 701                                         sizeof(p.mem_info)))
 702                         r = -EFAULT;
 703                 break;
 704
 705         case OMAPFB_GET_CAPS:
 706                 DBG("ioctl GET_CAPS\n");
 707                 if (!display) {
 708                         r = -EINVAL;
 709                         break;
 710                 }
 711
 712                 memset(&p.caps, 0, sizeof(p.caps));
 713                 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
 714                         p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
 715                 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
 716                         p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
 717
 718                 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
 719                         r = -EFAULT;
 720                 break;
 721
 722         case OMAPFB_GET_OVERLAY_COLORMODE:
 723                 DBG("ioctl GET_OVERLAY_COLORMODE\n");
 724                 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
 725                                    sizeof(p.ovl_colormode))) {
 726                         r = -EFAULT;
 727                         break;
 728                 }
 729                 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
 730                 if (r < 0)
 731                         break;
 732                 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
 733                                  sizeof(p.ovl_colormode)))
 734                         r = -EFAULT;
 735                 break;
 736
 737         case OMAPFB_SET_UPDATE_MODE:
 738                 DBG("ioctl SET_UPDATE_MODE\n");
 739                 if (get_user(p.update_mode, (int __user *)arg))
 740                         r = -EFAULT;
 741                 else
 742                         r = omapfb_set_update_mode(fbi, p.update_mode);
 743                 break;
 744
 745         case OMAPFB_GET_UPDATE_MODE:
 746                 DBG("ioctl GET_UPDATE_MODE\n");
 747                 r = omapfb_get_update_mode(fbi, &p.update_mode);
 748                 if (r)
 749                         break;
 750                 if (put_user(p.update_mode,
 751                                         (enum omapfb_update_mode __user *)arg))
 752                         r = -EFAULT;
 753                 break;
 754
 755         case OMAPFB_SET_COLOR_KEY:
 756                 DBG("ioctl SET_COLOR_KEY\n");
 757                 if (copy_from_user(&p.color_key, (void __user *)arg,
 758                                    sizeof(p.color_key)))
 759                         r = -EFAULT;
 760                 else
 761                         r = omapfb_set_color_key(fbi, &p.color_key);
 762                 break;
 763
 764         case OMAPFB_GET_COLOR_KEY:
 765                 DBG("ioctl GET_COLOR_KEY\n");
 766                 r = omapfb_get_color_key(fbi, &p.color_key);
 767                 if (r)
 768                         break;
 769                 if (copy_to_user((void __user *)arg, &p.color_key,
 770                                  sizeof(p.color_key)))
 771                         r = -EFAULT;
 772                 break;
 773
 774         case FBIO_WAITFORVSYNC:
 775                 if (get_user(p.crt, (__u32 __user *)arg)) {
 776                         r = -EFAULT;
 777                         break;
 778                 }
 779                 if (p.crt != 0) {
 780                         r = -ENODEV;
 781                         break;
 782                 }
 783                 /* FALLTHROUGH */
 784
 785         case OMAPFB_WAITFORVSYNC:
 786                 DBG("ioctl WAITFORVSYNC\n");
 787                 if (!display) {
 788                         r = -EINVAL;
 789                         break;
 790                 }
 791
 792                 r = display->manager->wait_for_vsync(display->manager);
 793                 break;
 794
 795         case OMAPFB_WAITFORGO:
 796                 DBG("ioctl WAITFORGO\n");
 797                 if (!display) {
 798                         r = -EINVAL;
 799                         break;
 800                 }
 801
 802                 r = omapfb_wait_for_go(fbi);
 803                 break;
 804
 805         /* LCD and CTRL tests do the same thing for backward
 806          * compatibility */
 807         case OMAPFB_LCD_TEST:
 808                 DBG("ioctl LCD_TEST\n");
 809                 if (get_user(p.test_num, (int __user *)arg)) {
 810                         r = -EFAULT;
 811                         break;
 812                 }
 813                 if (!display || !display->driver->run_test) {
 814                         r = -EINVAL;
 815                         break;
 816                 }
 817
 818                 r = display->driver->run_test(display, p.test_num);
 819
 820                 break;
 821
 822         case OMAPFB_CTRL_TEST:
 823                 DBG("ioctl CTRL_TEST\n");
 824                 if (get_user(p.test_num, (int __user *)arg)) {
 825                         r = -EFAULT;
 826                         break;
 827                 }
 828                 if (!display || !display->driver->run_test) {
 829                         r = -EINVAL;
 830                         break;
 831                 }
 832
 833                 r = display->driver->run_test(display, p.test_num);
 834
 835                 break;
 836
 837         case OMAPFB_MEMORY_READ:
 838                 DBG("ioctl MEMORY_READ\n");
 839
 840                 if (copy_from_user(&p.memory_read, (void __user *)arg,
 841                                         sizeof(p.memory_read))) {
 842                         r = -EFAULT;
 843                         break;
 844                 }
 845
 846                 r = omapfb_memory_read(fbi, &p.memory_read);
 847
 848                 break;
 849
 850         case OMAPFB_GET_VRAM_INFO: {
 851                 unsigned long vram, free, largest;
 852
 853                 DBG("ioctl GET_VRAM_INFO\n");
 854
 855                 omap_vram_get_info(&vram, &free, &largest);
 856                 p.vram_info.total = vram;
 857                 p.vram_info.free = free;
 858                 p.vram_info.largest_free_block = largest;
 859
 860                 if (copy_to_user((void __user *)arg, &p.vram_info,
 861                                         sizeof(p.vram_info)))
 862                         r = -EFAULT;
 863                 break;
 864         }
 865
 866         case OMAPFB_SET_TEARSYNC: {
 867                 DBG("ioctl SET_TEARSYNC\n");
 868
 869                 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
 870                                         sizeof(p.tearsync_info))) {
 871                         r = -EFAULT;
 872                         break;
 873                 }
 874
 875                 if (!display || !display->driver->enable_te) {
 876                         r = -ENODEV;
 877                         break;
 878                 }
 879
 880                 r = display->driver->enable_te(display,
 881                                 !!p.tearsync_info.enabled);
 882
 883                 break;
 884         }
 885
 886         case OMAPFB_GET_DISPLAY_INFO: {
 887                 u16 xres, yres;
 888
 889                 DBG("ioctl GET_DISPLAY_INFO\n");
 890
 891                 if (display == NULL) {
 892                         r = -ENODEV;
 893                         break;
 894                 }
 895
 896                 display->driver->get_resolution(display, &xres, &yres);
 897
 898                 p.display_info.xres = xres;
 899                 p.display_info.yres = yres;
 900
 901                 if (display->driver->get_dimensions) {
 902                         u32 w, h;
 903                         display->driver->get_dimensions(display, &w, &h);
 904                         p.display_info.width = w;
 905                         p.display_info.height = h;
 906                 } else {
 907                         p.display_info.width = 0;
 908                         p.display_info.height = 0;
 909                 }
 910
 911                 if (copy_to_user((void __user *)arg, &p.display_info,
 912                                         sizeof(p.display_info)))
 913                         r = -EFAULT;
 914                 break;
 915         }
 916
 917         default:
 918                 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
 919                 r = -EINVAL;
 920         }
 921
 922         if (r < 0)
 923                 DBG("ioctl failed: %d\n", r);
 924
 925         return r;
 926 }
 927
 928