drivers/video/omap/omapfb_main.c

   1 /*
   2  * Framebuffer driver for TI OMAP boards
   3  *
   4  * Copyright (C) 2004 Nokia Corporation
   5  * Author: Imre Deak <imre.deak@nokia.com>
   6  *
   7  * Acknowledgements:
   8  *   Alex McMains <aam@ridgerun.com>       - Original driver
   9  *   Juha Yrjola <juha.yrjola@nokia.com>   - Original driver and improvements
  10  *   Dirk Behme <dirk.behme@de.bosch.com>  - changes for 2.6 kernel API
  11  *   Texas Instruments                     - H3 support
  12  *
  13  * This program is free software; you can redistribute it and/or modify it
  14  * under the terms of the GNU General Public License as published by the
  15  * Free Software Foundation; either version 2 of the License, or (at your
  16  * option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful, but
  19  * WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21  * General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License along
  24  * with this program; if not, write to the Free Software Foundation, Inc.,
  25  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  26  */
  27 #include <linux/platform_device.h>
  28 #include <linux/mm.h>
  29 #include <linux/uaccess.h>
  30
  31 #include <mach/dma.h>
  32 #include <mach/omapfb.h>
  33
  34 #include "lcdc.h"
  35 #include "dispc.h"
  36
  37 #define MODULE_NAME     "omapfb"
  38
  39 static unsigned int     def_accel;
  40 static unsigned long    def_vram[OMAPFB_PLANE_NUM];
  41 static unsigned int     def_vram_cnt;
  42 static unsigned long    def_vxres;
  43 static unsigned long    def_vyres;
  44 static unsigned int     def_rotate;
  45 static unsigned int     def_mirror;
  46
  47 #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
  48 static int              manual_update = 1;
  49 #else
  50 static int              manual_update;
  51 #endif
  52
  53 static struct platform_device   *fbdev_pdev;
  54 static struct lcd_panel         *fbdev_panel;
  55 static struct omapfb_device     *omapfb_dev;
  56
  57 struct caps_table_struct {
  58         unsigned long flag;
  59         const char *name;
  60 };
  61
  62 static struct caps_table_struct ctrl_caps[] = {
  63         { OMAPFB_CAPS_MANUAL_UPDATE,  "manual update" },
  64         { OMAPFB_CAPS_TEARSYNC,       "tearing synchronization" },
  65         { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
  66         { OMAPFB_CAPS_PLANE_SCALE,    "scale plane" },
  67         { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
  68         { OMAPFB_CAPS_WINDOW_SCALE,   "scale window" },
  69         { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
  70         { OMAPFB_CAPS_WINDOW_ROTATE,  "rotate window" },
  71         { OMAPFB_CAPS_SET_BACKLIGHT,  "backlight setting" },
  72 };
  73
  74 static struct caps_table_struct color_caps[] = {
  75         { 1 << OMAPFB_COLOR_RGB565,     "RGB565", },
  76         { 1 << OMAPFB_COLOR_YUV422,     "YUV422", },
  77         { 1 << OMAPFB_COLOR_YUV420,     "YUV420", },
  78         { 1 << OMAPFB_COLOR_CLUT_8BPP,  "CLUT8", },
  79         { 1 << OMAPFB_COLOR_CLUT_4BPP,  "CLUT4", },
  80         { 1 << OMAPFB_COLOR_CLUT_2BPP,  "CLUT2", },
  81         { 1 << OMAPFB_COLOR_CLUT_1BPP,  "CLUT1", },
  82         { 1 << OMAPFB_COLOR_RGB444,     "RGB444", },
  83         { 1 << OMAPFB_COLOR_YUY422,     "YUY422", },
  84 };
  85
  86 /*
  87  * ---------------------------------------------------------------------------
  88  * LCD panel
  89  * ---------------------------------------------------------------------------
  90  */
  91 extern struct lcd_ctrl hwa742_ctrl;
  92 extern struct lcd_ctrl blizzard_ctrl;
  93
  94 static const struct lcd_ctrl *ctrls[] = {
  95 #ifdef CONFIG_ARCH_OMAP1
  96         &omap1_int_ctrl,
  97 #else
  98         &omap2_int_ctrl,
  99 #endif
 100
 101 #ifdef CONFIG_FB_OMAP_LCDC_HWA742
 102         &hwa742_ctrl,
 103 #endif
 104 #ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD
 105         &blizzard_ctrl,
 106 #endif
 107 };
 108
 109 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
 110 #ifdef CONFIG_ARCH_OMAP1
 111 extern struct lcd_ctrl_extif omap1_ext_if;
 112 #else
 113 extern struct lcd_ctrl_extif omap2_ext_if;
 114 #endif
 115 #endif
 116
 117 static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
 118 {
 119         mutex_lock(&fbdev->rqueue_mutex);
 120 }
 121
 122 static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
 123 {
 124         mutex_unlock(&fbdev->rqueue_mutex);
 125 }
 126
 127 /*
 128  * ---------------------------------------------------------------------------
 129  * LCD controller and LCD DMA
 130  * ---------------------------------------------------------------------------
 131  */
 132 /* Lookup table to map elem size to elem type. */
 133 static const int dma_elem_type[] = {
 134         0,
 135         OMAP_DMA_DATA_TYPE_S8,
 136         OMAP_DMA_DATA_TYPE_S16,
 137         0,
 138         OMAP_DMA_DATA_TYPE_S32,
 139 };
 140
 141 /*
 142  * Allocate resources needed for LCD controller and LCD DMA operations. Video
 143  * memory is allocated from system memory according to the virtual display
 144  * size, except if a bigger memory size is specified explicitly as a kernel
 145  * parameter.
 146  */
 147 static int ctrl_init(struct omapfb_device *fbdev)
 148 {
 149         int r;
 150         int i;
 151
 152         /* kernel/module vram parameters override boot tags/board config */
 153         if (def_vram_cnt) {
 154                 for (i = 0; i < def_vram_cnt; i++)
 155                         fbdev->mem_desc.region[i].size =
 156                                 PAGE_ALIGN(def_vram[i]);
 157                 fbdev->mem_desc.region_cnt = i;
 158         } else {
 159                 struct omapfb_platform_data *conf;
 160
 161                 conf = fbdev->dev->platform_data;
 162                 fbdev->mem_desc = conf->mem_desc;
 163         }
 164
 165         if (!fbdev->mem_desc.region_cnt) {
 166                 struct lcd_panel *panel = fbdev->panel;
 167                 int def_size;
 168                 int bpp = panel->bpp;
 169
 170                 /* 12 bpp is packed in 16 bits */
 171                 if (bpp == 12)
 172                         bpp = 16;
 173                 def_size = def_vxres * def_vyres * bpp / 8;
 174                 fbdev->mem_desc.region_cnt = 1;
 175                 fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
 176         }
 177         r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
 178         if (r < 0) {
 179                 dev_err(fbdev->dev, "controller initialization failed (%d)\n",
 180                         r);
 181                 return r;
 182         }
 183
 184 #ifdef DEBUG
 185         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
 186                 dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
 187                          i,
 188                          fbdev->mem_desc.region[i].paddr,
 189                          fbdev->mem_desc.region[i].vaddr,
 190                          fbdev->mem_desc.region[i].size);
 191         }
 192 #endif
 193         return 0;
 194 }
 195
 196 static void ctrl_cleanup(struct omapfb_device *fbdev)
 197 {
 198         fbdev->ctrl->cleanup();
 199 }
 200
 201 /* Must be called with fbdev->rqueue_mutex held. */
 202 static int ctrl_change_mode(struct fb_info *fbi)
 203 {
 204         int r;
 205         unsigned long offset;
 206         struct omapfb_plane_struct *plane = fbi->par;
 207         struct omapfb_device *fbdev = plane->fbdev;
 208         struct fb_var_screeninfo *var = &fbi->var;
 209
 210         offset = var->yoffset * fbi->fix.line_length +
 211                  var->xoffset * var->bits_per_pixel / 8;
 212
 213         if (fbdev->ctrl->sync)
 214                 fbdev->ctrl->sync();
 215         r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
 216                                  offset, var->xres_virtual,
 217                                  plane->info.pos_x, plane->info.pos_y,
 218                                  var->xres, var->yres, plane->color_mode);
 219         if (r < 0)
 220                 return r;
 221
 222         if (fbdev->ctrl->set_rotate != NULL) {
 223                 r = fbdev->ctrl->set_rotate(var->rotate);
 224                 if (r < 0)
 225                         return r;
 226         }
 227
 228         if (fbdev->ctrl->set_scale != NULL)
 229                 r = fbdev->ctrl->set_scale(plane->idx,
 230                                    var->xres, var->yres,
 231                                    plane->info.out_width,
 232                                    plane->info.out_height);
 233
 234         return r;
 235 }
 236
 237 /*
 238  * ---------------------------------------------------------------------------
 239  * fbdev framework callbacks and the ioctl interface
 240  * ---------------------------------------------------------------------------
 241  */
 242 /* Called each time the omapfb device is opened */
 243 static int omapfb_open(struct fb_info *info, int user)
 244 {
 245         return 0;
 246 }
 247
 248 static void omapfb_sync(struct fb_info *info);
 249
 250 /* Called when the omapfb device is closed. We make sure that any pending
 251  * gfx DMA operations are ended, before we return. */
 252 static int omapfb_release(struct fb_info *info, int user)
 253 {
 254         omapfb_sync(info);
 255         return 0;
 256 }
 257
 258 /* Store a single color palette entry into a pseudo palette or the hardware
 259  * palette if one is available. For now we support only 16bpp and thus store
 260  * the entry only to the pseudo palette.
 261  */
 262 static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
 263                         u_int blue, u_int transp, int update_hw_pal)
 264 {
 265         struct omapfb_plane_struct *plane = info->par;
 266         struct omapfb_device *fbdev = plane->fbdev;
 267         struct fb_var_screeninfo *var = &info->var;
 268         int r = 0;
 269
 270         switch (plane->color_mode) {
 271         case OMAPFB_COLOR_YUV422:
 272         case OMAPFB_COLOR_YUV420:
 273         case OMAPFB_COLOR_YUY422:
 274                 r = -EINVAL;
 275                 break;
 276         case OMAPFB_COLOR_CLUT_8BPP:
 277         case OMAPFB_COLOR_CLUT_4BPP:
 278         case OMAPFB_COLOR_CLUT_2BPP:
 279         case OMAPFB_COLOR_CLUT_1BPP:
 280                 if (fbdev->ctrl->setcolreg)
 281                         r = fbdev->ctrl->setcolreg(regno, red, green, blue,
 282                                                         transp, update_hw_pal);
 283                 /* Fallthrough */
 284         case OMAPFB_COLOR_RGB565:
 285         case OMAPFB_COLOR_RGB444:
 286                 if (r != 0)
 287                         break;
 288
 289                 if (regno < 0) {
 290                         r = -EINVAL;
 291                         break;
 292                 }
 293
 294                 if (regno < 16) {
 295                         u16 pal;
 296                         pal = ((red >> (16 - var->red.length)) <<
 297                                         var->red.offset) |
 298                               ((green >> (16 - var->green.length)) <<
 299                                         var->green.offset) |
 300                               (blue >> (16 - var->blue.length));
 301                         ((u32 *)(info->pseudo_palette))[regno] = pal;
 302                 }
 303                 break;
 304         default:
 305                 BUG();
 306         }
 307         return r;
 308 }
 309
 310 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 311                             u_int transp, struct fb_info *info)
 312 {
 313         return _setcolreg(info, regno, red, green, blue, transp, 1);
 314 }
 315
 316 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
 317 {
 318         int count, index, r;
 319         u16 *red, *green, *blue, *transp;
 320         u16 trans = 0xffff;
 321
 322         red     = cmap->red;
 323         green   = cmap->green;
 324         blue    = cmap->blue;
 325         transp  = cmap->transp;
 326         index   = cmap->start;
 327
 328         for (count = 0; count < cmap->len; count++) {
 329                 if (transp)
 330                         trans = *transp++;
 331                 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
 332                                 count == cmap->len - 1);
 333                 if (r != 0)
 334                         return r;
 335         }
 336
 337         return 0;
 338 }
 339
 340 static int omapfb_update_full_screen(struct fb_info *fbi);
 341
 342 static int omapfb_blank(int blank, struct fb_info *fbi)
 343 {
 344         struct omapfb_plane_struct *plane = fbi->par;
 345         struct omapfb_device *fbdev = plane->fbdev;
 346         int do_update = 0;
 347         int r = 0;
 348
 349         omapfb_rqueue_lock(fbdev);
 350         switch (blank) {
 351         case FB_BLANK_UNBLANK:
 352                 if (fbdev->state == OMAPFB_SUSPENDED) {
 353                         if (fbdev->ctrl->resume)
 354                                 fbdev->ctrl->resume();
 355                         fbdev->panel->enable(fbdev->panel);
 356                         fbdev->state = OMAPFB_ACTIVE;
 357                         if (fbdev->ctrl->get_update_mode() ==
 358                                         OMAPFB_MANUAL_UPDATE)
 359                                 do_update = 1;
 360                 }
 361                 break;
 362         case FB_BLANK_POWERDOWN:
 363                 if (fbdev->state == OMAPFB_ACTIVE) {
 364                         fbdev->panel->disable(fbdev->panel);
 365                         if (fbdev->ctrl->suspend)
 366                                 fbdev->ctrl->suspend();
 367                         fbdev->state = OMAPFB_SUSPENDED;
 368                 }
 369                 break;
 370         default:
 371                 r = -EINVAL;
 372         }
 373         omapfb_rqueue_unlock(fbdev);
 374
 375         if (r == 0 && do_update)
 376                 r = omapfb_update_full_screen(fbi);
 377
 378         return r;
 379 }
 380
 381 static void omapfb_sync(struct fb_info *fbi)
 382 {
 383         struct omapfb_plane_struct *plane = fbi->par;
 384         struct omapfb_device *fbdev = plane->fbdev;
 385
 386         omapfb_rqueue_lock(fbdev);
 387         if (fbdev->ctrl->sync)
 388                 fbdev->ctrl->sync();
 389         omapfb_rqueue_unlock(fbdev);
 390 }
 391
 392 /*
 393  * Set fb_info.fix fields and also updates fbdev.
 394  * When calling this fb_info.var must be set up already.
 395  */
 396 static void set_fb_fix(struct fb_info *fbi)
 397 {
 398         struct fb_fix_screeninfo *fix = &fbi->fix;
 399         struct fb_var_screeninfo *var = &fbi->var;
 400         struct omapfb_plane_struct *plane = fbi->par;
 401         struct omapfb_mem_region *rg;
 402         int bpp;
 403
 404         rg = &plane->fbdev->mem_desc.region[plane->idx];
 405         fbi->screen_base        = rg->vaddr;
 406         mutex_lock(&fbi->mm_lock);
 407         fix->smem_start         = rg->paddr;
 408         fix->smem_len           = rg->size;
 409         mutex_unlock(&fbi->mm_lock);
 410
 411         fix->type = FB_TYPE_PACKED_PIXELS;
 412         bpp = var->bits_per_pixel;
 413         if (var->nonstd)
 414                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 415         else switch (var->bits_per_pixel) {
 416         case 16:
 417         case 12:
 418                 fix->visual = FB_VISUAL_TRUECOLOR;
 419                 /* 12bpp is stored in 16 bits */
 420                 bpp = 16;
 421                 break;
 422         case 1:
 423         case 2:
 424         case 4:
 425         case 8:
 426                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 427                 break;
 428         }
 429         fix->accel              = FB_ACCEL_OMAP1610;
 430         fix->line_length        = var->xres_virtual * bpp / 8;
 431 }
 432
 433 static int set_color_mode(struct omapfb_plane_struct *plane,
 434                           struct fb_var_screeninfo *var)
 435 {
 436         switch (var->nonstd) {
 437         case 0:
 438                 break;
 439         case OMAPFB_COLOR_YUV422:
 440                 var->bits_per_pixel = 16;
 441                 plane->color_mode = var->nonstd;
 442                 return 0;
 443         case OMAPFB_COLOR_YUV420:
 444                 var->bits_per_pixel = 12;
 445                 plane->color_mode = var->nonstd;
 446                 return 0;
 447         case OMAPFB_COLOR_YUY422:
 448                 var->bits_per_pixel = 16;
 449                 plane->color_mode = var->nonstd;
 450                 return 0;
 451         default:
 452                 return -EINVAL;
 453         }
 454
 455         switch (var->bits_per_pixel) {
 456         case 1:
 457                 plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
 458                 return 0;
 459         case 2:
 460                 plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
 461                 return 0;
 462         case 4:
 463                 plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
 464                 return 0;
 465         case 8:
 466                 plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
 467                 return 0;
 468         case 12:
 469                 var->bits_per_pixel = 16;
 470                 plane->color_mode = OMAPFB_COLOR_RGB444;
 471                 return 0;
 472         case 16:
 473                 plane->color_mode = OMAPFB_COLOR_RGB565;
 474                 return 0;
 475         default:
 476                 return -EINVAL;
 477         }
 478 }
 479
 480 /*
 481  * Check the values in var against our capabilities and in case of out of
 482  * bound values try to adjust them.
 483  */
 484 static int set_fb_var(struct fb_info *fbi,
 485                       struct fb_var_screeninfo *var)
 486 {
 487         int             bpp;
 488         unsigned long   max_frame_size;
 489         unsigned long   line_size;
 490         int             xres_min, xres_max;
 491         int             yres_min, yres_max;
 492         struct omapfb_plane_struct *plane = fbi->par;
 493         struct omapfb_device *fbdev = plane->fbdev;
 494         struct lcd_panel *panel = fbdev->panel;
 495
 496         if (set_color_mode(plane, var) < 0)
 497                 return -EINVAL;
 498
 499         bpp = var->bits_per_pixel;
 500         if (plane->color_mode == OMAPFB_COLOR_RGB444)
 501                 bpp = 16;
 502
 503         switch (var->rotate) {
 504         case 0:
 505         case 180:
 506                 xres_min = OMAPFB_PLANE_XRES_MIN;
 507                 xres_max = panel->x_res;
 508                 yres_min = OMAPFB_PLANE_YRES_MIN;
 509                 yres_max = panel->y_res;
 510                 if (cpu_is_omap15xx()) {
 511                         var->xres = panel->x_res;
 512                         var->yres = panel->y_res;
 513                 }
 514                 break;
 515         case 90:
 516         case 270:
 517                 xres_min = OMAPFB_PLANE_YRES_MIN;
 518                 xres_max = panel->y_res;
 519                 yres_min = OMAPFB_PLANE_XRES_MIN;
 520                 yres_max = panel->x_res;
 521                 if (cpu_is_omap15xx()) {
 522                         var->xres = panel->y_res;
 523                         var->yres = panel->x_res;
 524                 }
 525                 break;
 526         default:
 527                 return -EINVAL;
 528         }
 529
 530         if (var->xres < xres_min)
 531                 var->xres = xres_min;
 532         if (var->yres < yres_min)
 533                 var->yres = yres_min;
 534         if (var->xres > xres_max)
 535                 var->xres = xres_max;
 536         if (var->yres > yres_max)
 537                 var->yres = yres_max;
 538
 539         if (var->xres_virtual < var->xres)
 540                 var->xres_virtual = var->xres;
 541         if (var->yres_virtual < var->yres)
 542                 var->yres_virtual = var->yres;
 543         max_frame_size = fbdev->mem_desc.region[plane->idx].size;
 544         line_size = var->xres_virtual * bpp / 8;
 545         if (line_size * var->yres_virtual > max_frame_size) {
 546                 /* Try to keep yres_virtual first */
 547                 line_size = max_frame_size / var->yres_virtual;
 548                 var->xres_virtual = line_size * 8 / bpp;
 549                 if (var->xres_virtual < var->xres) {
 550                         /* Still doesn't fit. Shrink yres_virtual too */
 551                         var->xres_virtual = var->xres;
 552                         line_size = var->xres * bpp / 8;
 553                         var->yres_virtual = max_frame_size / line_size;
 554                 }
 555                 /* Recheck this, as the virtual size changed. */
 556                 if (var->xres_virtual < var->xres)
 557                         var->xres = var->xres_virtual;
 558                 if (var->yres_virtual < var->yres)
 559                         var->yres = var->yres_virtual;
 560                 if (var->xres < xres_min || var->yres < yres_min)
 561                         return -EINVAL;
 562         }
 563         if (var->xres + var->xoffset > var->xres_virtual)
 564                 var->xoffset = var->xres_virtual - var->xres;
 565         if (var->yres + var->yoffset > var->yres_virtual)
 566                 var->yoffset = var->yres_virtual - var->yres;
 567
 568         if (plane->color_mode == OMAPFB_COLOR_RGB444) {
 569                 var->red.offset   = 8; var->red.length   = 4;
 570                                                 var->red.msb_right   = 0;
 571                 var->green.offset = 4; var->green.length = 4;
 572                                                 var->green.msb_right = 0;
 573                 var->blue.offset  = 0; var->blue.length  = 4;
 574                                                 var->blue.msb_right  = 0;
 575         } else {
 576                 var->red.offset  = 11; var->red.length   = 5;
 577                                                 var->red.msb_right   = 0;
 578                 var->green.offset = 5;  var->green.length = 6;
 579                                                 var->green.msb_right = 0;
 580                 var->blue.offset = 0;  var->blue.length  = 5;
 581                                                 var->blue.msb_right  = 0;
 582         }
 583
 584         var->height             = -1;
 585         var->width              = -1;
 586         var->grayscale          = 0;
 587
 588         /* pixclock in ps, the rest in pixclock */
 589         var->pixclock           = 10000000 / (panel->pixel_clock / 100);
 590         var->left_margin        = panel->hfp;
 591         var->right_margin       = panel->hbp;
 592         var->upper_margin       = panel->vfp;
 593         var->lower_margin       = panel->vbp;
 594         var->hsync_len          = panel->hsw;
 595         var->vsync_len          = panel->vsw;
 596
 597         /* TODO: get these from panel->config */
 598         var->vmode              = FB_VMODE_NONINTERLACED;
 599         var->sync               = 0;
 600
 601         return 0;
 602 }
 603
 604
 605 /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
 606 static void omapfb_rotate(struct fb_info *fbi, int rotate)
 607 {
 608         struct omapfb_plane_struct *plane = fbi->par;
 609         struct omapfb_device *fbdev = plane->fbdev;
 610
 611         omapfb_rqueue_lock(fbdev);
 612         if (rotate != fbi->var.rotate) {
 613                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 614
 615                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 616                 new_var->rotate = rotate;
 617                 if (set_fb_var(fbi, new_var) == 0 &&
 618                     memcmp(new_var, &fbi->var, sizeof(*new_var))) {
 619                         memcpy(&fbi->var, new_var, sizeof(*new_var));
 620                         ctrl_change_mode(fbi);
 621                 }
 622         }
 623         omapfb_rqueue_unlock(fbdev);
 624 }
 625
 626 /*
 627  * Set new x,y offsets in the virtual display for the visible area and switch
 628  * to the new mode.
 629  */
 630 static int omapfb_pan_display(struct fb_var_screeninfo *var,
 631                                struct fb_info *fbi)
 632 {
 633         struct omapfb_plane_struct *plane = fbi->par;
 634         struct omapfb_device *fbdev = plane->fbdev;
 635         int r = 0;
 636
 637         omapfb_rqueue_lock(fbdev);
 638         if (var->xoffset != fbi->var.xoffset ||
 639             var->yoffset != fbi->var.yoffset) {
 640                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 641
 642                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 643                 new_var->xoffset = var->xoffset;
 644                 new_var->yoffset = var->yoffset;
 645                 if (set_fb_var(fbi, new_var))
 646                         r = -EINVAL;
 647                 else {
 648                         memcpy(&fbi->var, new_var, sizeof(*new_var));
 649                         ctrl_change_mode(fbi);
 650                 }
 651         }
 652         omapfb_rqueue_unlock(fbdev);
 653
 654         return r;
 655 }
 656
 657 /* Set mirror to vertical axis and switch to the new mode. */
 658 static int omapfb_mirror(struct fb_info *fbi, int mirror)
 659 {
 660         struct omapfb_plane_struct *plane = fbi->par;
 661         struct omapfb_device *fbdev = plane->fbdev;
 662         int r = 0;
 663
 664         omapfb_rqueue_lock(fbdev);
 665         mirror = mirror ? 1 : 0;
 666         if (cpu_is_omap15xx())
 667                 r = -EINVAL;
 668         else if (mirror != plane->info.mirror) {
 669                 plane->info.mirror = mirror;
 670                 r = ctrl_change_mode(fbi);
 671         }
 672         omapfb_rqueue_unlock(fbdev);
 673
 674         return r;
 675 }
 676
 677 /*
 678  * Check values in var, try to adjust them in case of out of bound values if
 679  * possible, or return error.
 680  */
 681 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 682 {
 683         struct omapfb_plane_struct *plane = fbi->par;
 684         struct omapfb_device *fbdev = plane->fbdev;
 685         int r;
 686
 687         omapfb_rqueue_lock(fbdev);
 688         if (fbdev->ctrl->sync != NULL)
 689                 fbdev->ctrl->sync();
 690         r = set_fb_var(fbi, var);
 691         omapfb_rqueue_unlock(fbdev);
 692
 693         return r;
 694 }
 695
 696 /*
 697  * Switch to a new mode. The parameters for it has been check already by
 698  * omapfb_check_var.
 699  */
 700 static int omapfb_set_par(struct fb_info *fbi)
 701 {
 702         struct omapfb_plane_struct *plane = fbi->par;
 703         struct omapfb_device *fbdev = plane->fbdev;
 704         int r = 0;
 705
 706         omapfb_rqueue_lock(fbdev);
 707         set_fb_fix(fbi);
 708         r = ctrl_change_mode(fbi);
 709         omapfb_rqueue_unlock(fbdev);
 710
 711         return r;
 712 }
 713
 714 int omapfb_update_window_async(struct fb_info *fbi,
 715                                 struct omapfb_update_window *win,
 716                                 void (*callback)(void *),
 717                                 void *callback_data)
 718 {
 719         int xres, yres;
 720         struct omapfb_plane_struct *plane = fbi->par;
 721         struct omapfb_device *fbdev = plane->fbdev;
 722         struct fb_var_screeninfo *var = &fbi->var;
 723
 724         switch (var->rotate) {
 725         case 0:
 726         case 180:
 727                 xres = fbdev->panel->x_res;
 728                 yres = fbdev->panel->y_res;
 729                 break;
 730         case 90:
 731         case 270:
 732                 xres = fbdev->panel->y_res;
 733                 yres = fbdev->panel->x_res;
 734                 break;
 735         default:
 736                 return -EINVAL;
 737         }
 738
 739         if (win->x >= xres || win->y >= yres ||
 740             win->out_x > xres || win->out_y > yres)
 741                 return -EINVAL;
 742
 743         if (!fbdev->ctrl->update_window ||
 744             fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
 745                 return -ENODEV;
 746
 747         if (win->x + win->width > xres)
 748                 win->width = xres - win->x;
 749         if (win->y + win->height > yres)
 750                 win->height = yres - win->y;
 751         if (win->out_x + win->out_width > xres)
 752                 win->out_width = xres - win->out_x;
 753         if (win->out_y + win->out_height > yres)
 754                 win->out_height = yres - win->out_y;
 755         if (!win->width || !win->height || !win->out_width || !win->out_height)
 756                 return 0;
 757
 758         return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
 759 }
 760 EXPORT_SYMBOL(omapfb_update_window_async);
 761
 762 static int omapfb_update_win(struct fb_info *fbi,
 763                                 struct omapfb_update_window *win)
 764 {
 765         struct omapfb_plane_struct *plane = fbi->par;
 766         int ret;
 767
 768         omapfb_rqueue_lock(plane->fbdev);
 769         ret = omapfb_update_window_async(fbi, win, NULL, NULL);
 770         omapfb_rqueue_unlock(plane->fbdev);
 771
 772         return ret;
 773 }
 774
 775 static int omapfb_update_full_screen(struct fb_info *fbi)
 776 {
 777         struct omapfb_plane_struct *plane = fbi->par;
 778         struct omapfb_device *fbdev = plane->fbdev;
 779         struct omapfb_update_window win;
 780         int r;
 781
 782         if (!fbdev->ctrl->update_window ||
 783             fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
 784                 return -ENODEV;
 785
 786         win.x = 0;
 787         win.y = 0;
 788         win.width = fbi->var.xres;
 789         win.height = fbi->var.yres;
 790         win.out_x = 0;
 791         win.out_y = 0;
 792         win.out_width = fbi->var.xres;
 793         win.out_height = fbi->var.yres;
 794         win.format = 0;
 795
 796         omapfb_rqueue_lock(fbdev);
 797         r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
 798         omapfb_rqueue_unlock(fbdev);
 799
 800         return r;
 801 }
 802
 803 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 804 {
 805         struct omapfb_plane_struct *plane = fbi->par;
 806         struct omapfb_device *fbdev = plane->fbdev;
 807         struct lcd_panel *panel = fbdev->panel;
 808         struct omapfb_plane_info old_info;
 809         int r = 0;
 810
 811         if (pi->pos_x + pi->out_width > panel->x_res ||
 812             pi->pos_y + pi->out_height > panel->y_res)
 813                 return -EINVAL;
 814
 815         omapfb_rqueue_lock(fbdev);
 816         if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
 817                 /*
 818                  * This plane's memory was freed, can't enable it
 819                  * until it's reallocated.
 820                  */
 821                 r = -EINVAL;
 822                 goto out;
 823         }
 824         old_info = plane->info;
 825         plane->info = *pi;
 826         if (pi->enabled) {
 827                 r = ctrl_change_mode(fbi);
 828                 if (r < 0) {
 829                         plane->info = old_info;
 830                         goto out;
 831                 }
 832         }
 833         r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
 834         if (r < 0) {
 835                 plane->info = old_info;
 836                 goto out;
 837         }
 838 out:
 839         omapfb_rqueue_unlock(fbdev);
 840         return r;
 841 }
 842
 843 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 844 {
 845         struct omapfb_plane_struct *plane = fbi->par;
 846
 847         *pi = plane->info;
 848         return 0;
 849 }
 850
 851 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 852 {
 853         struct omapfb_plane_struct *plane = fbi->par;
 854         struct omapfb_device *fbdev = plane->fbdev;
 855         struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
 856         size_t size;
 857         int r = 0;
 858
 859         if (fbdev->ctrl->setup_mem == NULL)
 860                 return -ENODEV;
 861         if (mi->type > OMAPFB_MEMTYPE_MAX)
 862                 return -EINVAL;
 863
 864         size = PAGE_ALIGN(mi->size);
 865         omapfb_rqueue_lock(fbdev);
 866         if (plane->info.enabled) {
 867                 r = -EBUSY;
 868                 goto out;
 869         }
 870         if (rg->size != size || rg->type != mi->type) {
 871                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 872                 unsigned long old_size = rg->size;
 873                 u8            old_type = rg->type;
 874                 unsigned long paddr;
 875
 876                 rg->size = size;
 877                 rg->type = mi->type;
 878                 /*
 879                  * size == 0 is a special case, for which we
 880                  * don't check / adjust the screen parameters.
 881                  * This isn't a problem since the plane can't
 882                  * be reenabled unless its size is > 0.
 883                  */
 884                 if (old_size != size && size) {
 885                         if (size) {
 886                                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 887                                 r = set_fb_var(fbi, new_var);
 888                                 if (r < 0)
 889                                         goto out;
 890                         }
 891                 }
 892
 893                 if (fbdev->ctrl->sync)
 894                         fbdev->ctrl->sync();
 895                 r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
 896                 if (r < 0) {
 897                         /* Revert changes. */
 898                         rg->size = old_size;
 899                         rg->type = old_type;
 900                         goto out;
 901                 }
 902                 rg->paddr = paddr;
 903
 904                 if (old_size != size) {
 905                         if (size) {
 906                                 memcpy(&fbi->var, new_var, sizeof(fbi->var));
 907                                 set_fb_fix(fbi);
 908                         } else {
 909                                 /*
 910                                  * Set these explicitly to indicate that the
 911                                  * plane memory is dealloce'd, the other
 912                                  * screen parameters in var / fix are invalid.
 913                                  */
 914                                 mutex_lock(&fbi->mm_lock);
 915                                 fbi->fix.smem_start = 0;
 916                                 fbi->fix.smem_len = 0;
 917                                 mutex_unlock(&fbi->mm_lock);
 918                         }
 919                 }
 920         }
 921 out:
 922         omapfb_rqueue_unlock(fbdev);
 923
 924         return r;
 925 }
 926
 927 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 928 {
 929         struct omapfb_plane_struct *plane = fbi->par;
 930         struct omapfb_device *fbdev = plane->fbdev;
 931         struct omapfb_mem_region *rg;
 932
 933         rg = &fbdev->mem_desc.region[plane->idx];
 934         memset(mi, 0, sizeof(*mi));
 935         mi->size = rg->size;
 936         mi->type = rg->type;
 937
 938         return 0;
 939 }
 940
 941 static int omapfb_set_color_key(struct omapfb_device *fbdev,
 942                                 struct omapfb_color_key *ck)
 943 {
 944         int r;
 945
 946         if (!fbdev->ctrl->set_color_key)
 947                 return -ENODEV;
 948
 949         omapfb_rqueue_lock(fbdev);
 950         r = fbdev->ctrl->set_color_key(ck);
 951         omapfb_rqueue_unlock(fbdev);
 952
 953         return r;
 954 }
 955
 956 static int omapfb_get_color_key(struct omapfb_device *fbdev,
 957                                 struct omapfb_color_key *ck)
 958 {
 959         int r;
 960
 961         if (!fbdev->ctrl->get_color_key)
 962                 return -ENODEV;
 963
 964         omapfb_rqueue_lock(fbdev);
 965         r = fbdev->ctrl->get_color_key(ck);
 966         omapfb_rqueue_unlock(fbdev);
 967
 968         return r;
 969 }
 970
 971 static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
 972 static int notifier_inited;
 973
 974 static void omapfb_init_notifier(void)
 975 {
 976         int i;
 977
 978         for (i = 0; i < OMAPFB_PLANE_NUM; i++)
 979                 BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
 980 }
 981
 982 int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
 983                                 omapfb_notifier_callback_t callback,
 984                                 void *callback_data)
 985 {
 986         int r;
 987
 988         if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
 989                 return -EINVAL;
 990
 991         if (!notifier_inited) {
 992                 omapfb_init_notifier();
 993                 notifier_inited = 1;
 994         }
 995
 996         omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
 997                                         unsigned long, void *))callback;
 998         omapfb_nb->data = callback_data;
 999         r = blocking_notifier_chain_register(
1000                                 &omapfb_client_list[omapfb_nb->plane_idx],
1001                                 &omapfb_nb->nb);
1002         if (r)
1003                 return r;
1004         if (omapfb_dev != NULL &&
1005             omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
1006                 omapfb_dev->ctrl->bind_client(omapfb_nb);
1007         }
1008
1009         return 0;
1010 }
1011 EXPORT_SYMBOL(omapfb_register_client);
1012
1013 int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
1014 {
1015         return blocking_notifier_chain_unregister(
1016                 &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
1017 }
1018 EXPORT_SYMBOL(omapfb_unregister_client);
1019
1020 void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
1021 {
1022         int i;
1023
1024         if (!notifier_inited)
1025                 /* no client registered yet */
1026                 return;
1027
1028         for (i = 0; i < OMAPFB_PLANE_NUM; i++)
1029                 blocking_notifier_call_chain(&omapfb_client_list[i], event,
1030                                     fbdev->fb_info[i]);
1031 }
1032 EXPORT_SYMBOL(omapfb_notify_clients);
1033
1034 static int omapfb_set_update_mode(struct omapfb_device *fbdev,
1035                                    enum omapfb_update_mode mode)
1036 {
1037         int r;
1038
1039         omapfb_rqueue_lock(fbdev);
1040         r = fbdev->ctrl->set_update_mode(mode);
1041         omapfb_rqueue_unlock(fbdev);
1042
1043         return r;
1044 }
1045
1046 static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
1047 {
1048         int r;
1049
1050         omapfb_rqueue_lock(fbdev);
1051         r = fbdev->ctrl->get_update_mode();
1052         omapfb_rqueue_unlock(fbdev);
1053
1054         return r;
1055 }
1056
1057 static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
1058                                      struct omapfb_caps *caps)
1059 {
1060         memset(caps, 0, sizeof(*caps));
1061         fbdev->ctrl->get_caps(plane, caps);
1062         caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
1063 }
1064
1065 /* For lcd testing */
1066 void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
1067 {
1068         omapfb_rqueue_lock(fbdev);
1069         *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
1070         if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
1071                 struct omapfb_update_window win;
1072
1073                 memset(&win, 0, sizeof(win));
1074                 win.width = 2;
1075                 win.height = 2;
1076                 win.out_width = 2;
1077                 win.out_height = 2;
1078                 fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
1079         }
1080         omapfb_rqueue_unlock(fbdev);
1081 }
1082 EXPORT_SYMBOL(omapfb_write_first_pixel);
1083
1084 /*
1085  * Ioctl interface. Part of the kernel mode frame buffer API is duplicated
1086  * here to be accessible by user mode code.
1087  */
1088 static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
1089                         unsigned long arg)
1090 {
1091         struct omapfb_plane_struct *plane = fbi->par;
1092         struct omapfb_device    *fbdev = plane->fbdev;
1093         struct fb_ops           *ops = fbi->fbops;
1094         union {
1095                 struct omapfb_update_window     update_window;
1096                 struct omapfb_plane_info        plane_info;
1097                 struct omapfb_mem_info          mem_info;
1098                 struct omapfb_color_key         color_key;
1099                 enum omapfb_update_mode         update_mode;
1100                 struct omapfb_caps              caps;
1101                 unsigned int            mirror;
1102                 int                     plane_out;
1103                 int                     enable_plane;
1104         } p;
1105         int r = 0;
1106
1107         BUG_ON(!ops);
1108         switch (cmd) {
1109         case OMAPFB_MIRROR:
1110                 if (get_user(p.mirror, (int __user *)arg))
1111                         r = -EFAULT;
1112                 else
1113                         omapfb_mirror(fbi, p.mirror);
1114                 break;
1115         case OMAPFB_SYNC_GFX:
1116                 omapfb_sync(fbi);
1117                 break;
1118         case OMAPFB_VSYNC:
1119                 break;
1120         case OMAPFB_SET_UPDATE_MODE:
1121                 if (get_user(p.update_mode, (int __user *)arg))
1122                         r = -EFAULT;
1123                 else
1124                         r = omapfb_set_update_mode(fbdev, p.update_mode);
1125                 break;
1126         case OMAPFB_GET_UPDATE_MODE:
1127                 p.update_mode = omapfb_get_update_mode(fbdev);
1128                 if (put_user(p.update_mode,
1129                                         (enum omapfb_update_mode __user *)arg))
1130                         r = -EFAULT;
1131                 break;
1132         case OMAPFB_UPDATE_WINDOW_OLD:
1133                 if (copy_from_user(&p.update_window, (void __user *)arg,
1134                                    sizeof(struct omapfb_update_window_old)))
1135                         r = -EFAULT;
1136                 else {
1137                         struct omapfb_update_window *u = &p.update_window;
1138                         u->out_x = u->x;
1139                         u->out_y = u->y;
1140                         u->out_width = u->width;
1141                         u->out_height = u->height;
1142                         memset(u->reserved, 0, sizeof(u->reserved));
1143                         r = omapfb_update_win(fbi, u);
1144                 }
1145                 break;
1146         case OMAPFB_UPDATE_WINDOW:
1147                 if (copy_from_user(&p.update_window, (void __user *)arg,
1148                                    sizeof(p.update_window)))
1149                         r = -EFAULT;
1150                 else
1151                         r = omapfb_update_win(fbi, &p.update_window);
1152                 break;
1153         case OMAPFB_SETUP_PLANE:
1154                 if (copy_from_user(&p.plane_info, (void __user *)arg,
1155                                    sizeof(p.plane_info)))
1156                         r = -EFAULT;
1157                 else
1158                         r = omapfb_setup_plane(fbi, &p.plane_info);
1159                 break;
1160         case OMAPFB_QUERY_PLANE:
1161                 if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
1162                         break;
1163                 if (copy_to_user((void __user *)arg, &p.plane_info,
1164                                    sizeof(p.plane_info)))
1165                         r = -EFAULT;
1166                 break;
1167         case OMAPFB_SETUP_MEM:
1168                 if (copy_from_user(&p.mem_info, (void __user *)arg,
1169                                    sizeof(p.mem_info)))
1170                         r = -EFAULT;
1171                 else
1172                         r = omapfb_setup_mem(fbi, &p.mem_info);
1173                 break;
1174         case OMAPFB_QUERY_MEM:
1175                 if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
1176                         break;
1177                 if (copy_to_user((void __user *)arg, &p.mem_info,
1178                                    sizeof(p.mem_info)))
1179                         r = -EFAULT;
1180                 break;
1181         case OMAPFB_SET_COLOR_KEY:
1182                 if (copy_from_user(&p.color_key, (void __user *)arg,
1183                                    sizeof(p.color_key)))
1184                         r = -EFAULT;
1185                 else
1186                         r = omapfb_set_color_key(fbdev, &p.color_key);
1187                 break;
1188         case OMAPFB_GET_COLOR_KEY:
1189                 if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
1190                         break;
1191                 if (copy_to_user((void __user *)arg, &p.color_key,
1192                                  sizeof(p.color_key)))
1193                         r = -EFAULT;
1194                 break;
1195         case OMAPFB_GET_CAPS:
1196                 omapfb_get_caps(fbdev, plane->idx, &p.caps);
1197                 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
1198                         r = -EFAULT;
1199                 break;
1200         case OMAPFB_LCD_TEST:
1201                 {
1202                         int test_num;
1203
1204                         if (get_user(test_num, (int __user *)arg)) {
1205                                 r = -EFAULT;
1206                                 break;
1207                         }
1208                         if (!fbdev->panel->run_test) {
1209                                 r = -EINVAL;
1210                                 break;
1211                         }
1212                         r = fbdev->panel->run_test(fbdev->panel, test_num);
1213                         break;
1214                 }
1215         case OMAPFB_CTRL_TEST:
1216                 {
1217                         int test_num;
1218
1219                         if (get_user(test_num, (int __user *)arg)) {
1220                                 r = -EFAULT;
1221                                 break;
1222                         }
1223                         if (!fbdev->ctrl->run_test) {
1224                                 r = -EINVAL;
1225                                 break;
1226                         }
1227                         r = fbdev->ctrl->run_test(test_num);
1228                         break;
1229                 }
1230         default:
1231                 r = -EINVAL;
1232         }
1233
1234         return r;
1235 }
1236
1237 static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1238 {
1239         struct omapfb_plane_struct *plane = info->par;
1240         struct omapfb_device *fbdev = plane->fbdev;
1241         int r;
1242
1243         omapfb_rqueue_lock(fbdev);
1244         r = fbdev->ctrl->mmap(info, vma);
1245         omapfb_rqueue_unlock(fbdev);
1246
1247         return r;
1248 }
1249
1250 /*
1251  * Callback table for the frame buffer framework. Some of these pointers
1252  * will be changed according to the current setting of fb_info->accel_flags.
1253  */
1254 static struct fb_ops omapfb_ops = {
1255         .owner          = THIS_MODULE,
1256         .fb_open        = omapfb_open,
1257         .fb_release     = omapfb_release,
1258         .fb_setcolreg   = omapfb_setcolreg,
1259         .fb_setcmap     = omapfb_setcmap,
1260         .fb_fillrect    = cfb_fillrect,
1261         .fb_copyarea    = cfb_copyarea,
1262         .fb_imageblit   = cfb_imageblit,
1263         .fb_blank       = omapfb_blank,
1264         .fb_ioctl       = omapfb_ioctl,
1265         .fb_check_var   = omapfb_check_var,
1266         .fb_set_par     = omapfb_set_par,
1267         .fb_rotate      = omapfb_rotate,
1268         .fb_pan_display = omapfb_pan_display,
1269 };
1270
1271 /*
1272  * ---------------------------------------------------------------------------
1273  * Sysfs interface
1274  * ---------------------------------------------------------------------------
1275  */
1276 /* omapfbX sysfs entries */
1277 static ssize_t omapfb_show_caps_num(struct device *dev,
1278                                     struct device_attribute *attr, char *buf)
1279 {
1280         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1281         int plane;
1282         size_t size;
1283         struct omapfb_caps caps;
1284
1285         plane = 0;
1286         size = 0;
1287         while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1288                 omapfb_get_caps(fbdev, plane, &caps);
1289                 size += snprintf(&buf[size], PAGE_SIZE - size,
1290                         "plane#%d %#010x %#010x %#010x\n",
1291                         plane, caps.ctrl, caps.plane_color, caps.wnd_color);
1292                 plane++;
1293         }
1294         return size;
1295 }
1296
1297 static ssize_t omapfb_show_caps_text(struct device *dev,
1298                                      struct device_attribute *attr, char *buf)
1299 {
1300         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1301         int i;
1302         struct omapfb_caps caps;
1303         int plane;
1304         size_t size;
1305
1306         plane = 0;
1307         size = 0;
1308         while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1309                 omapfb_get_caps(fbdev, plane, &caps);
1310                 size += snprintf(&buf[size], PAGE_SIZE - size,
1311                                  "plane#%d:\n", plane);
1312                 for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
1313                      size < PAGE_SIZE; i++) {
1314                         if (ctrl_caps[i].flag & caps.ctrl)
1315                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1316                                         " %s\n", ctrl_caps[i].name);
1317                 }
1318                 size += snprintf(&buf[size], PAGE_SIZE - size,
1319                                  " plane colors:\n");
1320                 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1321                      size < PAGE_SIZE; i++) {
1322                         if (color_caps[i].flag & caps.plane_color)
1323                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1324                                         "  %s\n", color_caps[i].name);
1325                 }
1326                 size += snprintf(&buf[size], PAGE_SIZE - size,
1327                                  " window colors:\n");
1328                 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1329                      size < PAGE_SIZE; i++) {
1330                         if (color_caps[i].flag & caps.wnd_color)
1331                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1332                                         "  %s\n", color_caps[i].name);
1333                 }
1334
1335                 plane++;
1336         }
1337         return size;
1338 }
1339
1340 static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
1341 static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
1342
1343 /* panel sysfs entries */
1344 static ssize_t omapfb_show_panel_name(struct device *dev,
1345                                       struct device_attribute *attr, char *buf)
1346 {
1347         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1348
1349         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
1350 }
1351
1352 static ssize_t omapfb_show_bklight_level(struct device *dev,
1353                                          struct device_attribute *attr,
1354                                          char *buf)
1355 {
1356         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1357         int r;
1358
1359         if (fbdev->panel->get_bklight_level) {
1360                 r = snprintf(buf, PAGE_SIZE, "%d\n",
1361                              fbdev->panel->get_bklight_level(fbdev->panel));
1362         } else
1363                 r = -ENODEV;
1364         return r;
1365 }
1366
1367 static ssize_t omapfb_store_bklight_level(struct device *dev,
1368                                           struct device_attribute *attr,
1369                                           const char *buf, size_t size)
1370 {
1371         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1372         int r;
1373
1374         if (fbdev->panel->set_bklight_level) {
1375                 unsigned int level;
1376
1377                 if (sscanf(buf, "%10d", &level) == 1) {
1378                         r = fbdev->panel->set_bklight_level(fbdev->panel,
1379                                                             level);
1380                 } else
1381                         r = -EINVAL;
1382         } else
1383                 r = -ENODEV;
1384         return r ? r : size;
1385 }
1386
1387 static ssize_t omapfb_show_bklight_max(struct device *dev,
1388                                        struct device_attribute *attr, char *buf)
1389 {
1390         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1391         int r;
1392
1393         if (fbdev->panel->get_bklight_level) {
1394                 r = snprintf(buf, PAGE_SIZE, "%d\n",
1395                              fbdev->panel->get_bklight_max(fbdev->panel));
1396         } else
1397                 r = -ENODEV;
1398         return r;
1399 }
1400
1401 static struct device_attribute dev_attr_panel_name =
1402         __ATTR(name, 0444, omapfb_show_panel_name, NULL);
1403 static DEVICE_ATTR(backlight_level, 0664,
1404                    omapfb_show_bklight_level, omapfb_store_bklight_level);
1405 static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
1406
1407 static struct attribute *panel_attrs[] = {
1408         &dev_attr_panel_name.attr,
1409         &dev_attr_backlight_level.attr,
1410         &dev_attr_backlight_max.attr,
1411         NULL,
1412 };
1413
1414 static struct attribute_group panel_attr_grp = {
1415         .name  = "panel",
1416         .attrs = panel_attrs,
1417 };
1418
1419 /* ctrl sysfs entries */
1420 static ssize_t omapfb_show_ctrl_name(struct device *dev,
1421                                      struct device_attribute *attr, char *buf)
1422 {
1423         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1424
1425         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
1426 }
1427
1428 static struct device_attribute dev_attr_ctrl_name =
1429         __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
1430
1431 static struct attribute *ctrl_attrs[] = {
1432         &dev_attr_ctrl_name.attr,
1433         NULL,
1434 };
1435
1436 static struct attribute_group ctrl_attr_grp = {
1437         .name  = "ctrl",
1438         .attrs = ctrl_attrs,
1439 };
1440
1441 static int omapfb_register_sysfs(struct omapfb_device *fbdev)
1442 {
1443         int r;
1444
1445         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
1446                 goto fail0;
1447
1448         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
1449                 goto fail1;
1450
1451         if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
1452                 goto fail2;
1453
1454         if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
1455                 goto fail3;
1456
1457         return 0;
1458 fail3:
1459         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1460 fail2:
1461         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1462 fail1:
1463         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1464 fail0:
1465         dev_err(fbdev->dev, "unable to register sysfs interface\n");
1466         return r;
1467 }
1468
1469 static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
1470 {
1471         sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
1472         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1473         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1474         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1475 }
1476
1477 /*
1478  * ---------------------------------------------------------------------------
1479  * LDM callbacks
1480  * ---------------------------------------------------------------------------
1481  */
1482 /* Initialize system fb_info object and set the default video mode.
1483  * The frame buffer memory already allocated by lcddma_init
1484  */
1485 static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
1486 {
1487         struct fb_var_screeninfo        *var = &info->var;
1488         struct fb_fix_screeninfo        *fix = &info->fix;
1489         int                             r = 0;
1490
1491         info->fbops = &omapfb_ops;
1492         info->flags = FBINFO_FLAG_DEFAULT;
1493
1494         strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
1495
1496         info->pseudo_palette = fbdev->pseudo_palette;
1497
1498         var->accel_flags  = def_accel ? FB_ACCELF_TEXT : 0;
1499         var->xres = def_vxres;
1500         var->yres = def_vyres;
1501         var->xres_virtual = def_vxres;
1502         var->yres_virtual = def_vyres;
1503         var->rotate       = def_rotate;
1504         var->bits_per_pixel = fbdev->panel->bpp;
1505
1506         set_fb_var(info, var);
1507         set_fb_fix(info);
1508
1509         r = fb_alloc_cmap(&info->cmap, 16, 0);
1510         if (r != 0)
1511                 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1512
1513         return r;
1514 }
1515
1516 /* Release the fb_info object */
1517 static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
1518 {
1519         fb_dealloc_cmap(&fbi->cmap);
1520 }
1521
1522 static void planes_cleanup(struct omapfb_device *fbdev)
1523 {
1524         int i;
1525
1526         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1527                 if (fbdev->fb_info[i] == NULL)
1528                         break;
1529                 fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
1530                 framebuffer_release(fbdev->fb_info[i]);
1531         }
1532 }
1533
1534 static int planes_init(struct omapfb_device *fbdev)
1535 {
1536         struct fb_info *fbi;
1537         int i;
1538         int r;
1539
1540         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1541                 struct omapfb_plane_struct *plane;
1542                 fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
1543                                         fbdev->dev);
1544                 if (fbi == NULL) {
1545                         dev_err(fbdev->dev,
1546                                 "unable to allocate memory for plane info\n");
1547                         planes_cleanup(fbdev);
1548                         return -ENOMEM;
1549                 }
1550                 plane = fbi->par;
1551                 plane->idx = i;
1552                 plane->fbdev = fbdev;
1553                 plane->info.mirror = def_mirror;
1554                 fbdev->fb_info[i] = fbi;
1555
1556                 if ((r = fbinfo_init(fbdev, fbi)) < 0) {
1557                         framebuffer_release(fbi);
1558                         planes_cleanup(fbdev);
1559                         return r;
1560                 }
1561                 plane->info.out_width = fbi->var.xres;
1562                 plane->info.out_height = fbi->var.yres;
1563         }
1564         return 0;
1565 }
1566
1567 /*
1568  * Free driver resources. Can be called to rollback an aborted initialization
1569  * sequence.
1570  */
1571 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
1572 {
1573         int i;
1574
1575         switch (state) {
1576         case OMAPFB_ACTIVE:
1577                 for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
1578                         unregister_framebuffer(fbdev->fb_info[i]);
1579         case 7:
1580                 omapfb_unregister_sysfs(fbdev);
1581         case 6:
1582                 fbdev->panel->disable(fbdev->panel);
1583         case 5:
1584                 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1585         case 4:
1586                 planes_cleanup(fbdev);
1587         case 3:
1588                 ctrl_cleanup(fbdev);
1589         case 2:
1590                 fbdev->panel->cleanup(fbdev->panel);
1591         case 1:
1592                 dev_set_drvdata(fbdev->dev, NULL);
1593                 kfree(fbdev);
1594         case 0:
1595                 /* nothing to free */
1596                 break;
1597         default:
1598                 BUG();
1599         }
1600 }
1601
1602 static int omapfb_find_ctrl(struct omapfb_device *fbdev)
1603 {
1604         struct omapfb_platform_data *conf;
1605         char name[17];
1606         int i;
1607
1608         conf = fbdev->dev->platform_data;
1609
1610         fbdev->ctrl = NULL;
1611
1612         strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
1613         name[sizeof(name) - 1] = '\0';
1614
1615         if (strcmp(name, "internal") == 0) {
1616                 fbdev->ctrl = fbdev->int_ctrl;
1617                 return 0;
1618         }
1619
1620         for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
1621                 dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
1622                 if (strcmp(ctrls[i]->name, name) == 0) {
1623                         fbdev->ctrl = ctrls[i];
1624                         break;
1625                 }
1626         }
1627
1628         if (fbdev->ctrl == NULL) {
1629                 dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
1630                 return -1;
1631         }
1632
1633         return 0;
1634 }
1635
1636 static void check_required_callbacks(struct omapfb_device *fbdev)
1637 {
1638 #define _C(x) (fbdev->ctrl->x != NULL)
1639 #define _P(x) (fbdev->panel->x != NULL)
1640         BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
1641         BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
1642                  _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
1643                  _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
1644                  _P(get_caps)));
1645 #undef _P
1646 #undef _C
1647 }
1648
1649 /*
1650  * Called by LDM binding to probe and attach a new device.
1651  * Initialization sequence:
1652  *   1. allocate system omapfb_device structure
1653  *   2. select controller type according to platform configuration
1654  *      init LCD panel
1655  *   3. init LCD controller and LCD DMA
1656  *   4. init system fb_info structure for all planes
1657  *   5. setup video mode for first plane and enable it
1658  *   6. enable LCD panel
1659  *   7. register sysfs attributes
1660  *   OMAPFB_ACTIVE: register system fb_info structure for all planes
1661  */
1662 static int omapfb_do_probe(struct platform_device *pdev,
1663                                 struct lcd_panel *panel)
1664 {
1665         struct omapfb_device    *fbdev = NULL;
1666         int                     init_state;
1667         unsigned long           phz, hhz, vhz;
1668         unsigned long           vram;
1669         int                     i;
1670         int                     r = 0;
1671
1672         init_state = 0;
1673
1674         if (pdev->num_resources != 0) {
1675                 dev_err(&pdev->dev, "probed for an unknown device\n");
1676                 r = -ENODEV;
1677                 goto cleanup;
1678         }
1679
1680         if (pdev->dev.platform_data == NULL) {
1681                 dev_err(&pdev->dev, "missing platform data\n");
1682                 r = -ENOENT;
1683                 goto cleanup;
1684         }
1685
1686         fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
1687         if (fbdev == NULL) {
1688                 dev_err(&pdev->dev,
1689                         "unable to allocate memory for device info\n");
1690                 r = -ENOMEM;
1691                 goto cleanup;
1692         }
1693         init_state++;
1694
1695         fbdev->dev = &pdev->dev;
1696         fbdev->panel = panel;
1697         platform_set_drvdata(pdev, fbdev);
1698
1699         mutex_init(&fbdev->rqueue_mutex);
1700
1701 #ifdef CONFIG_ARCH_OMAP1
1702         fbdev->int_ctrl = &omap1_int_ctrl;
1703 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1704         fbdev->ext_if = &omap1_ext_if;
1705 #endif
1706 #else   /* OMAP2 */
1707         fbdev->int_ctrl = &omap2_int_ctrl;
1708 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1709         fbdev->ext_if = &omap2_ext_if;
1710 #endif
1711 #endif
1712         if (omapfb_find_ctrl(fbdev) < 0) {
1713                 dev_err(fbdev->dev,
1714                         "LCD controller not found, board not supported\n");
1715                 r = -ENODEV;
1716                 goto cleanup;
1717         }
1718
1719         r = fbdev->panel->init(fbdev->panel, fbdev);
1720         if (r)
1721                 goto cleanup;
1722
1723         pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
1724
1725         def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
1726         def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
1727
1728         init_state++;
1729
1730         r = ctrl_init(fbdev);
1731         if (r)
1732                 goto cleanup;
1733         if (fbdev->ctrl->mmap != NULL)
1734                 omapfb_ops.fb_mmap = omapfb_mmap;
1735         init_state++;
1736
1737         check_required_callbacks(fbdev);
1738
1739         r = planes_init(fbdev);
1740         if (r)
1741                 goto cleanup;
1742         init_state++;
1743
1744 #ifdef CONFIG_FB_OMAP_DMA_TUNE
1745         /* Set DMA priority for EMIFF access to highest */
1746         if (cpu_class_is_omap1())
1747                 omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
1748 #endif
1749
1750         r = ctrl_change_mode(fbdev->fb_info[0]);
1751         if (r) {
1752                 dev_err(fbdev->dev, "mode setting failed\n");
1753                 goto cleanup;
1754         }
1755
1756         /* GFX plane is enabled by default */
1757         r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
1758         if (r)
1759                 goto cleanup;
1760
1761         omapfb_set_update_mode(fbdev, manual_update ?
1762                                    OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
1763         init_state++;
1764
1765         r = fbdev->panel->enable(fbdev->panel);
1766         if (r)
1767                 goto cleanup;
1768         init_state++;
1769
1770         r = omapfb_register_sysfs(fbdev);
1771         if (r)
1772                 goto cleanup;
1773         init_state++;
1774
1775         vram = 0;
1776         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1777                 r = register_framebuffer(fbdev->fb_info[i]);
1778                 if (r != 0) {
1779                         dev_err(fbdev->dev,
1780                                 "registering framebuffer %d failed\n", i);
1781                         goto cleanup;
1782                 }
1783                 vram += fbdev->mem_desc.region[i].size;
1784         }
1785
1786         fbdev->state = OMAPFB_ACTIVE;
1787
1788         panel = fbdev->panel;
1789         phz = panel->pixel_clock * 1000;
1790         hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
1791         vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
1792
1793         omapfb_dev = fbdev;
1794
1795         pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
1796                         vram, fbdev->mem_desc.region_cnt);
1797         pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
1798                         "vfreq %lu.%lu Hz\n",
1799                         phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
1800
1801         return 0;
1802
1803 cleanup:
1804         omapfb_free_resources(fbdev, init_state);
1805
1806         return r;
1807 }
1808
1809 static int omapfb_probe(struct platform_device *pdev)
1810 {
1811         BUG_ON(fbdev_pdev != NULL);
1812
1813         /* Delay actual initialization until the LCD is registered */
1814         fbdev_pdev = pdev;
1815         if (fbdev_panel != NULL)
1816                 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1817         return 0;
1818 }
1819
1820 void omapfb_register_panel(struct lcd_panel *panel)
1821 {
1822         BUG_ON(fbdev_panel != NULL);
1823
1824         fbdev_panel = panel;
1825         if (fbdev_pdev != NULL)
1826                 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1827 }
1828
1829 /* Called when the device is being detached from the driver */
1830 static int omapfb_remove(struct platform_device *pdev)
1831 {
1832         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1833         enum omapfb_state saved_state = fbdev->state;
1834
1835         /* FIXME: wait till completion of pending events */
1836
1837         fbdev->state = OMAPFB_DISABLED;
1838         omapfb_free_resources(fbdev, saved_state);
1839
1840         return 0;
1841 }
1842
1843 /* PM suspend */
1844 static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
1845 {
1846         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1847
1848         if (fbdev != NULL)
1849                 omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
1850         return 0;
1851 }
1852
1853 /* PM resume */
1854 static int omapfb_resume(struct platform_device *pdev)
1855 {
1856         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1857
1858         if (fbdev != NULL)
1859                 omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
1860         return 0;
1861 }
1862
1863 static struct platform_driver omapfb_driver = {
1864         .probe          = omapfb_probe,
1865         .remove         = omapfb_remove,
1866         .suspend        = omapfb_suspend,
1867         .resume         = omapfb_resume,
1868         .driver         = {
1869                 .name   = MODULE_NAME,
1870                 .owner  = THIS_MODULE,
1871         },
1872 };
1873
1874 #ifndef MODULE
1875
1876 /* Process kernel command line parameters */
1877 static int __init omapfb_setup(char *options)
1878 {
1879         char *this_opt = NULL;
1880         int r = 0;
1881
1882         pr_debug("omapfb: options %s\n", options);
1883
1884         if (!options || !*options)
1885                 return 0;
1886
1887         while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1888                 if (!strncmp(this_opt, "accel", 5))
1889                         def_accel = 1;
1890                 else if (!strncmp(this_opt, "vram:", 5)) {
1891                         char *suffix;
1892                         unsigned long vram;
1893                         vram = (simple_strtoul(this_opt + 5, &suffix, 0));
1894                         switch (suffix[0]) {
1895                         case '\0':
1896                                 break;
1897                         case 'm':
1898                         case 'M':
1899                                 vram *= 1024;
1900                                 /* Fall through */
1901                         case 'k':
1902                         case 'K':
1903                                 vram *= 1024;
1904                                 break;
1905                         default:
1906                                 pr_debug("omapfb: invalid vram suffix %c\n",
1907                                          suffix[0]);
1908                                 r = -1;
1909                         }
1910                         def_vram[def_vram_cnt++] = vram;
1911                 }
1912                 else if (!strncmp(this_opt, "vxres:", 6))
1913                         def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
1914                 else if (!strncmp(this_opt, "vyres:", 6))
1915                         def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
1916                 else if (!strncmp(this_opt, "rotate:", 7))
1917                         def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
1918                 else if (!strncmp(this_opt, "mirror:", 7))
1919                         def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
1920                 else if (!strncmp(this_opt, "manual_update", 13))
1921                         manual_update = 1;
1922                 else {
1923                         pr_debug("omapfb: invalid option\n");
1924                         r = -1;
1925                 }
1926         }
1927
1928         return r;
1929 }
1930
1931 #endif
1932
1933 /* Register both the driver and the device */
1934 static int __init omapfb_init(void)
1935 {
1936 #ifndef MODULE
1937         char *option;
1938
1939         if (fb_get_options("omapfb", &option))
1940                 return -ENODEV;
1941         omapfb_setup(option);
1942 #endif
1943         /* Register the driver with LDM */
1944         if (platform_driver_register(&omapfb_driver)) {
1945                 pr_debug("failed to register omapfb driver\n");
1946                 return -ENODEV;
1947         }
1948
1949         return 0;
1950 }
1951
1952 static void __exit omapfb_cleanup(void)
1953 {
1954         platform_driver_unregister(&omapfb_driver);
1955 }
1956
1957 module_param_named(accel, def_accel, uint, 0664);
1958 module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
1959 module_param_named(vxres, def_vxres, long, 0664);
1960 module_param_named(vyres, def_vyres, long, 0664);
1961 module_param_named(rotate, def_rotate, uint, 0664);
1962 module_param_named(mirror, def_mirror, uint, 0664);
1963 module_param_named(manual_update, manual_update, bool, 0664);
1964
1965 module_init(omapfb_init);
1966 module_exit(omapfb_cleanup);
1967
1968 MODULE_DESCRIPTION("TI OMAP framebuffer driver");
1969 MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
1970 MODULE_LICENSE("GPL");