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