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
  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 == 0) {
  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 == 0) {
 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         atomic_inc(&rg->lock_count);
 226
 227         if (rg->size == size && rg->type == mi->type)
 228                 goto out;
 229
 230         if (atomic_read(&rg->map_count)) {
 231                 r = -EBUSY;
 232                 goto out;
 233         }
 234
 235         for (i = 0; i < fbdev->num_fbs; i++) {
 236                 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
 237                 int j;
 238
 239                 if (ofbi2->region != rg)
 240                         continue;
 241
 242                 for (j = 0; j < ofbi2->num_overlays; j++) {
 243                         if (ofbi2->overlays[j]->info.enabled) {
 244                                 r = -EBUSY;
 245                                 goto out;
 246                         }
 247                 }
 248         }
 249
 250         r = omapfb_realloc_fbmem(fbi, size, mi->type);
 251         if (r) {
 252                 dev_err(fbdev->dev, "realloc fbmem failed\n");
 253                 goto out;
 254         }
 255
 256  out:
 257         atomic_dec(&rg->lock_count);
 258         up_write(&rg->lock);
 259
 260         return r;
 261 }
 262
 263 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 264 {
 265         struct omapfb_info *ofbi = FB2OFB(fbi);
 266         struct omapfb2_mem_region *rg;
 267
 268         rg = omapfb_get_mem_region(ofbi->region);
 269         memset(mi, 0, sizeof(*mi));
 270
 271         mi->size = rg->size;
 272         mi->type = rg->type;
 273
 274         omapfb_put_mem_region(rg);
 275
 276         return 0;
 277 }
 278
 279 static int omapfb_update_window_nolock(struct fb_info *fbi,
 280                 u32 x, u32 y, u32 w, u32 h)
 281 {
 282         struct omap_dss_device *display = fb2display(fbi);
 283         u16 dw, dh;
 284
 285         if (!display)
 286                 return 0;
 287
 288         if (w == 0 || h == 0)
 289                 return 0;
 290
 291         display->driver->get_resolution(display, &dw, &dh);
 292
 293         if (x + w > dw || y + h > dh)
 294                 return -EINVAL;
 295
 296         return display->driver->update(display, x, y, w, h);
 297 }
 298
 299 /* This function is exported for SGX driver use */
 300 int omapfb_update_window(struct fb_info *fbi,
 301                 u32 x, u32 y, u32 w, u32 h)
 302 {
 303         struct omapfb_info *ofbi = FB2OFB(fbi);
 304         struct omapfb2_device *fbdev = ofbi->fbdev;
 305         int r;
 306
 307         if (!lock_fb_info(fbi))
 308                 return -ENODEV;
 309         omapfb_lock(fbdev);
 310
 311         r = omapfb_update_window_nolock(fbi, x, y, w, h);
 312
 313         omapfb_unlock(fbdev);
 314         unlock_fb_info(fbi);
 315
 316         return r;
 317 }
 318 EXPORT_SYMBOL(omapfb_update_window);
 319
 320 int omapfb_set_update_mode(struct fb_info *fbi,
 321                                    enum omapfb_update_mode mode)
 322 {
 323         struct omap_dss_device *display = fb2display(fbi);
 324         struct omapfb_info *ofbi = FB2OFB(fbi);
 325         struct omapfb2_device *fbdev = ofbi->fbdev;
 326         struct omapfb_display_data *d;
 327         int r;
 328
 329         if (!display)
 330                 return -EINVAL;
 331
 332         if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
 333                 return -EINVAL;
 334
 335         omapfb_lock(fbdev);
 336
 337         d = get_display_data(fbdev, display);
 338
 339         if (d->update_mode == mode) {
 340                 omapfb_unlock(fbdev);
 341                 return 0;
 342         }
 343
 344         r = 0;
 345
 346         if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
 347                 if (mode == OMAPFB_AUTO_UPDATE)
 348                         omapfb_start_auto_update(fbdev, display);
 349                 else /* MANUAL_UPDATE */
 350                         omapfb_stop_auto_update(fbdev, display);
 351
 352                 d->update_mode = mode;
 353         } else { /* AUTO_UPDATE */
 354                 if (mode == OMAPFB_MANUAL_UPDATE)
 355                         r = -EINVAL;
 356         }
 357
 358         omapfb_unlock(fbdev);
 359
 360         return r;
 361 }
 362
 363 int omapfb_get_update_mode(struct fb_info *fbi,
 364                 enum omapfb_update_mode *mode)
 365 {
 366         struct omap_dss_device *display = fb2display(fbi);
 367         struct omapfb_info *ofbi = FB2OFB(fbi);
 368         struct omapfb2_device *fbdev = ofbi->fbdev;
 369         struct omapfb_display_data *d;
 370
 371         if (!display)
 372                 return -EINVAL;
 373
 374         omapfb_lock(fbdev);
 375
 376         d = get_display_data(fbdev, display);
 377
 378         *mode = d->update_mode;
 379
 380         omapfb_unlock(fbdev);
 381
 382         return 0;
 383 }
 384
 385 /* XXX this color key handling is a hack... */
 386 static struct omapfb_color_key omapfb_color_keys[2];
 387
 388 static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
 389                 struct omapfb_color_key *ck)
 390 {
 391         struct omap_overlay_manager_info info;
 392         enum omap_dss_trans_key_type kt;
 393         int r;
 394
 395         mgr->get_manager_info(mgr, &info);
 396
 397         if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
 398                 info.trans_enabled = false;
 399                 omapfb_color_keys[mgr->id] = *ck;
 400
 401                 r = mgr->set_manager_info(mgr, &info);
 402                 if (r)
 403                         return r;
 404
 405                 r = mgr->apply(mgr);
 406
 407                 return r;
 408         }
 409
 410         switch (ck->key_type) {
 411         case OMAPFB_COLOR_KEY_GFX_DST:
 412                 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
 413                 break;
 414         case OMAPFB_COLOR_KEY_VID_SRC:
 415                 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
 416                 break;
 417         default:
 418                 return -EINVAL;
 419         }
 420
 421         info.default_color = ck->background;
 422         info.trans_key = ck->trans_key;
 423         info.trans_key_type = kt;
 424         info.trans_enabled = true;
 425
 426         omapfb_color_keys[mgr->id] = *ck;
 427
 428         r = mgr->set_manager_info(mgr, &info);
 429         if (r)
 430                 return r;
 431
 432         r = mgr->apply(mgr);
 433
 434         return r;
 435 }
 436
 437 static int omapfb_set_color_key(struct fb_info *fbi,
 438                 struct omapfb_color_key *ck)
 439 {
 440         struct omapfb_info *ofbi = FB2OFB(fbi);
 441         struct omapfb2_device *fbdev = ofbi->fbdev;
 442         int r;
 443         int i;
 444         struct omap_overlay_manager *mgr = NULL;
 445
 446         omapfb_lock(fbdev);
 447
 448         for (i = 0; i < ofbi->num_overlays; i++) {
 449                 if (ofbi->overlays[i]->manager) {
 450                         mgr = ofbi->overlays[i]->manager;
 451                         break;
 452                 }
 453         }
 454
 455         if (!mgr) {
 456                 r = -EINVAL;
 457                 goto err;
 458         }
 459
 460         r = _omapfb_set_color_key(mgr, ck);
 461 err:
 462         omapfb_unlock(fbdev);
 463
 464         return r;
 465 }
 466
 467 static int omapfb_get_color_key(struct fb_info *fbi,
 468                 struct omapfb_color_key *ck)
 469 {
 470         struct omapfb_info *ofbi = FB2OFB(fbi);
 471         struct omapfb2_device *fbdev = ofbi->fbdev;
 472         struct omap_overlay_manager *mgr = NULL;
 473         int r = 0;
 474         int i;
 475
 476         omapfb_lock(fbdev);
 477
 478         for (i = 0; i < ofbi->num_overlays; i++) {
 479                 if (ofbi->overlays[i]->manager) {
 480                         mgr = ofbi->overlays[i]->manager;
 481                         break;
 482                 }
 483         }
 484
 485         if (!mgr) {
 486                 r = -EINVAL;
 487                 goto err;
 488         }
 489
 490         *ck = omapfb_color_keys[mgr->id];
 491 err:
 492         omapfb_unlock(fbdev);
 493
 494         return r;
 495 }
 496
 497 static int omapfb_memory_read(struct fb_info *fbi,
 498                 struct omapfb_memory_read *mr)
 499 {
 500         struct omap_dss_device *display = fb2display(fbi);
 501         void *buf;
 502         int r;
 503
 504         if (!display || !display->driver->memory_read)
 505                 return -ENOENT;
 506
 507         if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
 508                 return -EFAULT;
 509
 510         if (mr->w * mr->h * 3 > mr->buffer_size)
 511                 return -EINVAL;
 512
 513         buf = vmalloc(mr->buffer_size);
 514         if (!buf) {
 515                 DBG("vmalloc failed\n");
 516                 return -ENOMEM;
 517         }
 518
 519         r = display->driver->memory_read(display, buf, mr->buffer_size,
 520                         mr->x, mr->y, mr->w, mr->h);
 521
 522         if (r > 0) {
 523                 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
 524                         r = -EFAULT;
 525         }
 526
 527         vfree(buf);
 528
 529         return r;
 530 }
 531
 532 static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
 533                              struct omapfb_ovl_colormode *mode)
 534 {
 535         int ovl_idx = mode->overlay_idx;
 536         int mode_idx = mode->mode_idx;
 537         struct omap_overlay *ovl;
 538         enum omap_color_mode supported_modes;
 539         struct fb_var_screeninfo var;
 540         int i;
 541
 542         if (ovl_idx >= fbdev->num_overlays)
 543                 return -ENODEV;
 544         ovl = fbdev->overlays[ovl_idx];
 545         supported_modes = ovl->supported_modes;
 546
 547         mode_idx = mode->mode_idx;
 548
 549         for (i = 0; i < sizeof(supported_modes) * 8; i++) {
 550                 if (!(supported_modes & (1 << i)))
 551                         continue;
 552                 /*
 553                  * It's possible that the FB doesn't support a mode
 554                  * that is supported by the overlay, so call the
 555                  * following here.
 556                  */
 557                 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
 558                         continue;
 559
 560                 mode_idx--;
 561                 if (mode_idx < 0)
 562                         break;
 563         }
 564
 565         if (i == sizeof(supported_modes) * 8)
 566                 return -ENOENT;
 567
 568         mode->bits_per_pixel = var.bits_per_pixel;
 569         mode->nonstd = var.nonstd;
 570         mode->red = var.red;
 571         mode->green = var.green;
 572         mode->blue = var.blue;
 573         mode->transp = var.transp;
 574
 575         return 0;
 576 }
 577
 578 static int omapfb_wait_for_go(struct fb_info *fbi)
 579 {
 580         struct omapfb_info *ofbi = FB2OFB(fbi);
 581         int r = 0;
 582         int i;
 583
 584         for (i = 0; i < ofbi->num_overlays; ++i) {
 585                 struct omap_overlay *ovl = ofbi->overlays[i];
 586                 r = ovl->wait_for_go(ovl);
 587                 if (r)
 588                         break;
 589         }
 590
 591         return r;
 592 }
 593
 594 static int omapfb_do_vsync(struct fb_info *fbi,
 595         struct omap_dss_device *display, u32 *frame, bool force)
 596 {
 597         unsigned long timeout = usecs_to_jiffies(16667 * 2);
 598         struct omapfb_info *ofbi = FB2OFB(fbi);
 599         static u32 frame_tv;
 600         bool is_tv = false;
 601         u32 frame_dummy = 0;
 602         int i, r;
 603
 604         if (frame == NULL)
 605                 frame = &frame_dummy;
 606
 607         /* try to find the first enabled overlay+display pair */
 608         for (i = 0; i < ofbi->num_overlays; i++) {
 609                 struct omap_overlay_manager *manager;
 610
 611                 if (!ofbi->overlays[i]->info.enabled)
 612                         continue;
 613
 614                 manager = ofbi->overlays[i]->manager;
 615                 if (!manager)
 616                         continue;
 617
 618                 if (manager->device->state
 619                     == OMAP_DSS_DISPLAY_ACTIVE)
 620                 {
 621                         display = manager->device;
 622                         break;
 623                 }
 624         }
 625
 626         if (display->type == OMAP_DISPLAY_TYPE_VENC)
 627                 is_tv = true;
 628
 629         r = dispc_runtime_get();
 630         if (r)
 631                 return r;
 632
 633         /* this is unsafe pandora hack, but should work as fb
 634          * is compiled in (no worry about rmmod) and there
 635          * is no way to rm fb instances at runtime */
 636         unlock_fb_info(fbi);
 637
 638         if (is_tv) {
 639                 u32 irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
 640                 r = omap_dispc_wait_for_irq_interruptible_timeout(irq,
 641                         timeout);
 642                 /* there is no real frame counter for TV */
 643                 *frame = ++frame_tv;
 644         }
 645         else {
 646                 r = omap_dispc_wait_for_vsync_on_frame(frame,
 647                         timeout, force);
 648         }
 649
 650         if (!lock_fb_info(fbi))
 651                 printk(KERN_ERR "omapfb: lock_fb_info failed\n");
 652
 653         dispc_runtime_put();
 654
 655         return r;
 656 }
 657
 658 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 659 {
 660         struct omapfb_info *ofbi = FB2OFB(fbi);
 661         struct omapfb2_device *fbdev = ofbi->fbdev;
 662         struct omap_dss_device *display = fb2display(fbi);
 663
 664         union {
 665                 struct omapfb_update_window_old uwnd_o;
 666                 struct omapfb_update_window     uwnd;
 667                 struct omapfb_plane_info        plane_info;
 668                 struct omapfb_caps              caps;
 669                 struct omapfb_mem_info          mem_info;
 670                 struct omapfb_color_key         color_key;
 671                 struct omapfb_ovl_colormode     ovl_colormode;
 672                 enum omapfb_update_mode         update_mode;
 673                 int test_num;
 674                 struct omapfb_memory_read       memory_read;
 675                 struct omapfb_vram_info         vram_info;
 676                 struct omapfb_tearsync_info     tearsync_info;
 677                 struct omapfb_display_info      display_info;
 678                 u32                             crt;
 679                 u32                             frame;
 680         } p;
 681
 682         int r = 0;
 683
 684         switch (cmd) {
 685         case OMAPFB_SYNC_GFX:
 686                 DBG("ioctl SYNC_GFX\n");
 687                 if (!display || !display->driver->sync) {
 688                         /* DSS1 never returns an error here, so we neither */
 689                         /*r = -EINVAL;*/
 690                         break;
 691                 }
 692
 693                 r = display->driver->sync(display);
 694                 break;
 695
 696         case OMAPFB_UPDATE_WINDOW_OLD:
 697                 DBG("ioctl UPDATE_WINDOW_OLD\n");
 698                 if (!display || !display->driver->update) {
 699                         r = -EINVAL;
 700                         break;
 701                 }
 702
 703                 if (copy_from_user(&p.uwnd_o,
 704                                         (void __user *)arg,
 705                                         sizeof(p.uwnd_o))) {
 706                         r = -EFAULT;
 707                         break;
 708                 }
 709
 710                 r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
 711                                 p.uwnd_o.width, p.uwnd_o.height);
 712                 break;
 713
 714         case OMAPFB_UPDATE_WINDOW:
 715                 DBG("ioctl UPDATE_WINDOW\n");
 716                 if (!display || !display->driver->update) {
 717                         r = -EINVAL;
 718                         break;
 719                 }
 720
 721                 if (copy_from_user(&p.uwnd, (void __user *)arg,
 722                                         sizeof(p.uwnd))) {
 723                         r = -EFAULT;
 724                         break;
 725                 }
 726
 727                 r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
 728                                 p.uwnd.width, p.uwnd.height);
 729                 break;
 730
 731         case OMAPFB_SETUP_PLANE:
 732                 DBG("ioctl SETUP_PLANE\n");
 733                 if (copy_from_user(&p.plane_info, (void __user *)arg,
 734                                         sizeof(p.plane_info)))
 735                         r = -EFAULT;
 736                 else
 737                         r = omapfb_setup_plane(fbi, &p.plane_info);
 738                 break;
 739
 740         case OMAPFB_QUERY_PLANE:
 741                 DBG("ioctl QUERY_PLANE\n");
 742                 r = omapfb_query_plane(fbi, &p.plane_info);
 743                 if (r < 0)
 744                         break;
 745                 if (copy_to_user((void __user *)arg, &p.plane_info,
 746                                         sizeof(p.plane_info)))
 747                         r = -EFAULT;
 748                 break;
 749
 750         case OMAPFB_SETUP_MEM:
 751                 DBG("ioctl SETUP_MEM\n");
 752                 if (copy_from_user(&p.mem_info, (void __user *)arg,
 753                                         sizeof(p.mem_info)))
 754                         r = -EFAULT;
 755                 else
 756                         r = omapfb_setup_mem(fbi, &p.mem_info);
 757                 break;
 758
 759         case OMAPFB_QUERY_MEM:
 760                 DBG("ioctl QUERY_MEM\n");
 761                 r = omapfb_query_mem(fbi, &p.mem_info);
 762                 if (r < 0)
 763                         break;
 764                 if (copy_to_user((void __user *)arg, &p.mem_info,
 765                                         sizeof(p.mem_info)))
 766                         r = -EFAULT;
 767                 break;
 768
 769         case OMAPFB_GET_CAPS:
 770                 DBG("ioctl GET_CAPS\n");
 771                 if (!display) {
 772                         r = -EINVAL;
 773                         break;
 774                 }
 775
 776                 memset(&p.caps, 0, sizeof(p.caps));
 777                 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
 778                         p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
 779                 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
 780                         p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
 781
 782                 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
 783                         r = -EFAULT;
 784                 break;
 785
 786         case OMAPFB_GET_OVERLAY_COLORMODE:
 787                 DBG("ioctl GET_OVERLAY_COLORMODE\n");
 788                 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
 789                                    sizeof(p.ovl_colormode))) {
 790                         r = -EFAULT;
 791                         break;
 792                 }
 793                 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
 794                 if (r < 0)
 795                         break;
 796                 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
 797                                  sizeof(p.ovl_colormode)))
 798                         r = -EFAULT;
 799                 break;
 800
 801         case OMAPFB_SET_UPDATE_MODE:
 802                 DBG("ioctl SET_UPDATE_MODE\n");
 803                 if (get_user(p.update_mode, (int __user *)arg))
 804                         r = -EFAULT;
 805                 else
 806                         r = omapfb_set_update_mode(fbi, p.update_mode);
 807                 break;
 808
 809         case OMAPFB_GET_UPDATE_MODE:
 810                 DBG("ioctl GET_UPDATE_MODE\n");
 811                 r = omapfb_get_update_mode(fbi, &p.update_mode);
 812                 if (r)
 813                         break;
 814                 if (put_user(p.update_mode,
 815                                         (enum omapfb_update_mode __user *)arg))
 816                         r = -EFAULT;
 817                 break;
 818
 819         case OMAPFB_SET_COLOR_KEY:
 820                 DBG("ioctl SET_COLOR_KEY\n");
 821                 if (copy_from_user(&p.color_key, (void __user *)arg,
 822                                    sizeof(p.color_key)))
 823                         r = -EFAULT;
 824                 else
 825                         r = omapfb_set_color_key(fbi, &p.color_key);
 826                 break;
 827
 828         case OMAPFB_GET_COLOR_KEY:
 829                 DBG("ioctl GET_COLOR_KEY\n");
 830                 r = omapfb_get_color_key(fbi, &p.color_key);
 831                 if (r)
 832                         break;
 833                 if (copy_to_user((void __user *)arg, &p.color_key,
 834                                  sizeof(p.color_key)))
 835                         r = -EFAULT;
 836                 break;
 837
 838         case FBIO_WAITFORVSYNC:
 839                 if (get_user(p.crt, (__u32 __user *)arg)) {
 840                         r = -EFAULT;
 841                         break;
 842                 }
 843                 if (p.crt != 0) {
 844                         r = -ENODEV;
 845                         break;
 846                 }
 847                 /* FALLTHROUGH */
 848
 849         case OMAPFB_WAITFORVSYNC:
 850                 DBG("ioctl WAITFORVSYNC\n");
 851                 if (!display) {
 852                         r = -EINVAL;
 853                         break;
 854                 }
 855
 856                 r = display->manager->wait_for_vsync(display->manager);
 857                 break;
 858
 859         case OMAPFB_WAITFORGO:
 860                 DBG("ioctl WAITFORGO\n");
 861                 if (!display) {
 862                         r = -EINVAL;
 863                         break;
 864                 }
 865
 866                 r = omapfb_wait_for_go(fbi);
 867                 break;
 868
 869         case OMAPFB_WAITFORVSYNC_FRAME:
 870                 if (get_user(p.frame, (__u32 __user *)arg)) {
 871                         r = -EFAULT;
 872                         break;
 873                 }
 874                 r = omapfb_do_vsync(fbi, display, &p.frame, false);
 875                 /* report the frame # regardless */
 876                 if (copy_to_user((void __user *)arg, &p.frame,
 877                                  sizeof(p.frame)))
 878                         r = -EFAULT;
 879                 break;
 880
 881         case OMAPFB_GET_LINE_STATUS:
 882                 r = omap_dispc_get_line_status();
 883                 if (r < 0)
 884                         break;
 885                 if (copy_to_user((void __user *)arg, &r, sizeof(r)))
 886                         r = -EFAULT;
 887                 else
 888                         r = 0;
 889                 break;
 890
 891         /* LCD and CTRL tests do the same thing for backward
 892          * compatibility */
 893         case OMAPFB_LCD_TEST:
 894                 DBG("ioctl LCD_TEST\n");
 895                 if (get_user(p.test_num, (int __user *)arg)) {
 896                         r = -EFAULT;
 897                         break;
 898                 }
 899                 if (!display || !display->driver->run_test) {
 900                         r = -EINVAL;
 901                         break;
 902                 }
 903
 904                 r = display->driver->run_test(display, p.test_num);
 905
 906                 break;
 907
 908         case OMAPFB_CTRL_TEST:
 909                 DBG("ioctl CTRL_TEST\n");
 910                 if (get_user(p.test_num, (int __user *)arg)) {
 911                         r = -EFAULT;
 912                         break;
 913                 }
 914                 if (!display || !display->driver->run_test) {
 915                         r = -EINVAL;
 916                         break;
 917                 }
 918
 919                 r = display->driver->run_test(display, p.test_num);
 920
 921                 break;
 922
 923         case OMAPFB_MEMORY_READ:
 924                 DBG("ioctl MEMORY_READ\n");
 925
 926                 if (copy_from_user(&p.memory_read, (void __user *)arg,
 927                                         sizeof(p.memory_read))) {
 928                         r = -EFAULT;
 929                         break;
 930                 }
 931
 932                 r = omapfb_memory_read(fbi, &p.memory_read);
 933
 934                 break;
 935
 936         case OMAPFB_GET_VRAM_INFO: {
 937                 DBG("ioctl GET_VRAM_INFO\n");
 938
 939                 /*
 940                  * We don't have the ability to get this vram info anymore.
 941                  * Fill in something that should keep the applications working.
 942                  */
 943                 p.vram_info.total = SZ_1M * 64;
 944                 p.vram_info.free = SZ_1M * 64;
 945                 p.vram_info.largest_free_block = SZ_1M * 64;
 946
 947                 if (copy_to_user((void __user *)arg, &p.vram_info,
 948                                         sizeof(p.vram_info)))
 949                         r = -EFAULT;
 950                 break;
 951         }
 952
 953         case OMAPFB_SET_TEARSYNC: {
 954                 DBG("ioctl SET_TEARSYNC\n");
 955
 956                 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
 957                                         sizeof(p.tearsync_info))) {
 958                         r = -EFAULT;
 959                         break;
 960                 }
 961
 962                 if (!display || !display->driver->enable_te) {
 963                         r = -ENODEV;
 964                         break;
 965                 }
 966
 967                 r = display->driver->enable_te(display,
 968                                 !!p.tearsync_info.enabled);
 969
 970                 break;
 971         }
 972
 973         case OMAPFB_GET_DISPLAY_INFO: {
 974                 u16 xres, yres;
 975
 976                 DBG("ioctl GET_DISPLAY_INFO\n");
 977
 978                 if (display == NULL) {
 979                         r = -ENODEV;
 980                         break;
 981                 }
 982
 983                 display->driver->get_resolution(display, &xres, &yres);
 984
 985                 p.display_info.xres = xres;
 986                 p.display_info.yres = yres;
 987
 988                 if (display->driver->get_dimensions) {
 989                         u32 w, h;
 990                         display->driver->get_dimensions(display, &w, &h);
 991                         p.display_info.width = w;
 992                         p.display_info.height = h;
 993                 } else {
 994                         p.display_info.width = 0;
 995                         p.display_info.height = 0;
 996                 }
 997
 998                 if (copy_to_user((void __user *)arg, &p.display_info,
 999                                         sizeof(p.display_info)))
1000                         r = -EFAULT;
1001                 break;
1002         }
1003
1004         default:
1005                 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
1006                 r = -EINVAL;
1007         }
1008
1009         if (r < 0)
1010                 DBG("ioctl failed: %d\n", r);
1011
1012         return r;
1013 }
1014
1015