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