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