SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 <plat/dma.h>
  32 #include <plat/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, int from_init)
 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
 407         if (!from_init) {
 408                 mutex_lock(&fbi->mm_lock);
 409                 fix->smem_start         = rg->paddr;
 410                 fix->smem_len           = rg->size;
 411                 mutex_unlock(&fbi->mm_lock);
 412         } else {
 413                 fix->smem_start         = rg->paddr;
 414                 fix->smem_len           = rg->size;
 415         }
 416
 417         fix->type = FB_TYPE_PACKED_PIXELS;
 418         bpp = var->bits_per_pixel;
 419         if (var->nonstd)
 420                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 421         else switch (var->bits_per_pixel) {
 422         case 16:
 423         case 12:
 424                 fix->visual = FB_VISUAL_TRUECOLOR;
 425                 /* 12bpp is stored in 16 bits */
 426                 bpp = 16;
 427                 break;
 428         case 1:
 429         case 2:
 430         case 4:
 431         case 8:
 432                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 433                 break;
 434         }
 435         fix->accel              = FB_ACCEL_OMAP1610;
 436         fix->line_length        = var->xres_virtual * bpp / 8;
 437 }
 438
 439 static int set_color_mode(struct omapfb_plane_struct *plane,
 440                           struct fb_var_screeninfo *var)
 441 {
 442         switch (var->nonstd) {
 443         case 0:
 444                 break;
 445         case OMAPFB_COLOR_YUV422:
 446                 var->bits_per_pixel = 16;
 447                 plane->color_mode = var->nonstd;
 448                 return 0;
 449         case OMAPFB_COLOR_YUV420:
 450                 var->bits_per_pixel = 12;
 451                 plane->color_mode = var->nonstd;
 452                 return 0;
 453         case OMAPFB_COLOR_YUY422:
 454                 var->bits_per_pixel = 16;
 455                 plane->color_mode = var->nonstd;
 456                 return 0;
 457         default:
 458                 return -EINVAL;
 459         }
 460
 461         switch (var->bits_per_pixel) {
 462         case 1:
 463                 plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
 464                 return 0;
 465         case 2:
 466                 plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
 467                 return 0;
 468         case 4:
 469                 plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
 470                 return 0;
 471         case 8:
 472                 plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
 473                 return 0;
 474         case 12:
 475                 var->bits_per_pixel = 16;
 476                 plane->color_mode = OMAPFB_COLOR_RGB444;
 477                 return 0;
 478         case 16:
 479                 plane->color_mode = OMAPFB_COLOR_RGB565;
 480                 return 0;
 481         default:
 482                 return -EINVAL;
 483         }
 484 }
 485
 486 /*
 487  * Check the values in var against our capabilities and in case of out of
 488  * bound values try to adjust them.
 489  */
 490 static int set_fb_var(struct fb_info *fbi,
 491                       struct fb_var_screeninfo *var)
 492 {
 493         int             bpp;
 494         unsigned long   max_frame_size;
 495         unsigned long   line_size;
 496         int             xres_min, xres_max;
 497         int             yres_min, yres_max;
 498         struct omapfb_plane_struct *plane = fbi->par;
 499         struct omapfb_device *fbdev = plane->fbdev;
 500         struct lcd_panel *panel = fbdev->panel;
 501
 502         if (set_color_mode(plane, var) < 0)
 503                 return -EINVAL;
 504
 505         bpp = var->bits_per_pixel;
 506         if (plane->color_mode == OMAPFB_COLOR_RGB444)
 507                 bpp = 16;
 508
 509         switch (var->rotate) {
 510         case 0:
 511         case 180:
 512                 xres_min = OMAPFB_PLANE_XRES_MIN;
 513                 xres_max = panel->x_res;
 514                 yres_min = OMAPFB_PLANE_YRES_MIN;
 515                 yres_max = panel->y_res;
 516                 if (cpu_is_omap15xx()) {
 517                         var->xres = panel->x_res;
 518                         var->yres = panel->y_res;
 519                 }
 520                 break;
 521         case 90:
 522         case 270:
 523                 xres_min = OMAPFB_PLANE_YRES_MIN;
 524                 xres_max = panel->y_res;
 525                 yres_min = OMAPFB_PLANE_XRES_MIN;
 526                 yres_max = panel->x_res;
 527                 if (cpu_is_omap15xx()) {
 528                         var->xres = panel->y_res;
 529                         var->yres = panel->x_res;
 530                 }
 531                 break;
 532         default:
 533                 return -EINVAL;
 534         }
 535
 536         if (var->xres < xres_min)
 537                 var->xres = xres_min;
 538         if (var->yres < yres_min)
 539                 var->yres = yres_min;
 540         if (var->xres > xres_max)
 541                 var->xres = xres_max;
 542         if (var->yres > yres_max)
 543                 var->yres = yres_max;
 544
 545         if (var->xres_virtual < var->xres)
 546                 var->xres_virtual = var->xres;
 547         if (var->yres_virtual < var->yres)
 548                 var->yres_virtual = var->yres;
 549         max_frame_size = fbdev->mem_desc.region[plane->idx].size;
 550         line_size = var->xres_virtual * bpp / 8;
 551         if (line_size * var->yres_virtual > max_frame_size) {
 552                 /* Try to keep yres_virtual first */
 553                 line_size = max_frame_size / var->yres_virtual;
 554                 var->xres_virtual = line_size * 8 / bpp;
 555                 if (var->xres_virtual < var->xres) {
 556                         /* Still doesn't fit. Shrink yres_virtual too */
 557                         var->xres_virtual = var->xres;
 558                         line_size = var->xres * bpp / 8;
 559                         var->yres_virtual = max_frame_size / line_size;
 560                 }
 561                 /* Recheck this, as the virtual size changed. */
 562                 if (var->xres_virtual < var->xres)
 563                         var->xres = var->xres_virtual;
 564                 if (var->yres_virtual < var->yres)
 565                         var->yres = var->yres_virtual;
 566                 if (var->xres < xres_min || var->yres < yres_min)
 567                         return -EINVAL;
 568         }
 569         if (var->xres + var->xoffset > var->xres_virtual)
 570                 var->xoffset = var->xres_virtual - var->xres;
 571         if (var->yres + var->yoffset > var->yres_virtual)
 572                 var->yoffset = var->yres_virtual - var->yres;
 573
 574         if (plane->color_mode == OMAPFB_COLOR_RGB444) {
 575                 var->red.offset   = 8; var->red.length   = 4;
 576                                                 var->red.msb_right   = 0;
 577                 var->green.offset = 4; var->green.length = 4;
 578                                                 var->green.msb_right = 0;
 579                 var->blue.offset  = 0; var->blue.length  = 4;
 580                                                 var->blue.msb_right  = 0;
 581         } else {
 582                 var->red.offset  = 11; var->red.length   = 5;
 583                                                 var->red.msb_right   = 0;
 584                 var->green.offset = 5;  var->green.length = 6;
 585                                                 var->green.msb_right = 0;
 586                 var->blue.offset = 0;  var->blue.length  = 5;
 587                                                 var->blue.msb_right  = 0;
 588         }
 589
 590         var->height             = -1;
 591         var->width              = -1;
 592         var->grayscale          = 0;
 593
 594         /* pixclock in ps, the rest in pixclock */
 595         var->pixclock           = 10000000 / (panel->pixel_clock / 100);
 596         var->left_margin        = panel->hfp;
 597         var->right_margin       = panel->hbp;
 598         var->upper_margin       = panel->vfp;
 599         var->lower_margin       = panel->vbp;
 600         var->hsync_len          = panel->hsw;
 601         var->vsync_len          = panel->vsw;
 602
 603         /* TODO: get these from panel->config */
 604         var->vmode              = FB_VMODE_NONINTERLACED;
 605         var->sync               = 0;
 606
 607         return 0;
 608 }
 609
 610
 611 /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
 612 static void omapfb_rotate(struct fb_info *fbi, int rotate)
 613 {
 614         struct omapfb_plane_struct *plane = fbi->par;
 615         struct omapfb_device *fbdev = plane->fbdev;
 616
 617         omapfb_rqueue_lock(fbdev);
 618         if (rotate != fbi->var.rotate) {
 619                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 620
 621                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 622                 new_var->rotate = rotate;
 623                 if (set_fb_var(fbi, new_var) == 0 &&
 624                     memcmp(new_var, &fbi->var, sizeof(*new_var))) {
 625                         memcpy(&fbi->var, new_var, sizeof(*new_var));
 626                         ctrl_change_mode(fbi);
 627                 }
 628         }
 629         omapfb_rqueue_unlock(fbdev);
 630 }
 631
 632 /*
 633  * Set new x,y offsets in the virtual display for the visible area and switch
 634  * to the new mode.
 635  */
 636 static int omapfb_pan_display(struct fb_var_screeninfo *var,
 637                                struct fb_info *fbi)
 638 {
 639         struct omapfb_plane_struct *plane = fbi->par;
 640         struct omapfb_device *fbdev = plane->fbdev;
 641         int r = 0;
 642
 643         omapfb_rqueue_lock(fbdev);
 644         if (var->xoffset != fbi->var.xoffset ||
 645             var->yoffset != fbi->var.yoffset) {
 646                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 647
 648                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 649                 new_var->xoffset = var->xoffset;
 650                 new_var->yoffset = var->yoffset;
 651                 if (set_fb_var(fbi, new_var))
 652                         r = -EINVAL;
 653                 else {
 654                         memcpy(&fbi->var, new_var, sizeof(*new_var));
 655                         ctrl_change_mode(fbi);
 656                 }
 657         }
 658         omapfb_rqueue_unlock(fbdev);
 659
 660         return r;
 661 }
 662
 663 /* Set mirror to vertical axis and switch to the new mode. */
 664 static int omapfb_mirror(struct fb_info *fbi, int mirror)
 665 {
 666         struct omapfb_plane_struct *plane = fbi->par;
 667         struct omapfb_device *fbdev = plane->fbdev;
 668         int r = 0;
 669
 670         omapfb_rqueue_lock(fbdev);
 671         mirror = mirror ? 1 : 0;
 672         if (cpu_is_omap15xx())
 673                 r = -EINVAL;
 674         else if (mirror != plane->info.mirror) {
 675                 plane->info.mirror = mirror;
 676                 r = ctrl_change_mode(fbi);
 677         }
 678         omapfb_rqueue_unlock(fbdev);
 679
 680         return r;
 681 }
 682
 683 /*
 684  * Check values in var, try to adjust them in case of out of bound values if
 685  * possible, or return error.
 686  */
 687 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 688 {
 689         struct omapfb_plane_struct *plane = fbi->par;
 690         struct omapfb_device *fbdev = plane->fbdev;
 691         int r;
 692
 693         omapfb_rqueue_lock(fbdev);
 694         if (fbdev->ctrl->sync != NULL)
 695                 fbdev->ctrl->sync();
 696         r = set_fb_var(fbi, var);
 697         omapfb_rqueue_unlock(fbdev);
 698
 699         return r;
 700 }
 701
 702 /*
 703  * Switch to a new mode. The parameters for it has been check already by
 704  * omapfb_check_var.
 705  */
 706 static int omapfb_set_par(struct fb_info *fbi)
 707 {
 708         struct omapfb_plane_struct *plane = fbi->par;
 709         struct omapfb_device *fbdev = plane->fbdev;
 710         int r = 0;
 711
 712         omapfb_rqueue_lock(fbdev);
 713         set_fb_fix(fbi, 0);
 714         r = ctrl_change_mode(fbi);
 715         omapfb_rqueue_unlock(fbdev);
 716
 717         return r;
 718 }
 719
 720 int omapfb_update_window_async(struct fb_info *fbi,
 721                                 struct omapfb_update_window *win,
 722                                 void (*callback)(void *),
 723                                 void *callback_data)
 724 {
 725         int xres, yres;
 726         struct omapfb_plane_struct *plane = fbi->par;
 727         struct omapfb_device *fbdev = plane->fbdev;
 728         struct fb_var_screeninfo *var = &fbi->var;
 729
 730         switch (var->rotate) {
 731         case 0:
 732         case 180:
 733                 xres = fbdev->panel->x_res;
 734                 yres = fbdev->panel->y_res;
 735                 break;
 736         case 90:
 737         case 270:
 738                 xres = fbdev->panel->y_res;
 739                 yres = fbdev->panel->x_res;
 740                 break;
 741         default:
 742                 return -EINVAL;
 743         }
 744
 745         if (win->x >= xres || win->y >= yres ||
 746             win->out_x > xres || win->out_y > yres)
 747                 return -EINVAL;
 748
 749         if (!fbdev->ctrl->update_window ||
 750             fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
 751                 return -ENODEV;
 752
 753         if (win->x + win->width > xres)
 754                 win->width = xres - win->x;
 755         if (win->y + win->height > yres)
 756                 win->height = yres - win->y;
 757         if (win->out_x + win->out_width > xres)
 758                 win->out_width = xres - win->out_x;
 759         if (win->out_y + win->out_height > yres)
 760                 win->out_height = yres - win->out_y;
 761         if (!win->width || !win->height || !win->out_width || !win->out_height)
 762                 return 0;
 763
 764         return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
 765 }
 766 EXPORT_SYMBOL(omapfb_update_window_async);
 767
 768 static int omapfb_update_win(struct fb_info *fbi,
 769                                 struct omapfb_update_window *win)
 770 {
 771         struct omapfb_plane_struct *plane = fbi->par;
 772         int ret;
 773
 774         omapfb_rqueue_lock(plane->fbdev);
 775         ret = omapfb_update_window_async(fbi, win, NULL, NULL);
 776         omapfb_rqueue_unlock(plane->fbdev);
 777
 778         return ret;
 779 }
 780
 781 static int omapfb_update_full_screen(struct fb_info *fbi)
 782 {
 783         struct omapfb_plane_struct *plane = fbi->par;
 784         struct omapfb_device *fbdev = plane->fbdev;
 785         struct omapfb_update_window win;
 786         int r;
 787
 788         if (!fbdev->ctrl->update_window ||
 789             fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
 790                 return -ENODEV;
 791
 792         win.x = 0;
 793         win.y = 0;
 794         win.width = fbi->var.xres;
 795         win.height = fbi->var.yres;
 796         win.out_x = 0;
 797         win.out_y = 0;
 798         win.out_width = fbi->var.xres;
 799         win.out_height = fbi->var.yres;
 800         win.format = 0;
 801
 802         omapfb_rqueue_lock(fbdev);
 803         r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
 804         omapfb_rqueue_unlock(fbdev);
 805
 806         return r;
 807 }
 808
 809 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 810 {
 811         struct omapfb_plane_struct *plane = fbi->par;
 812         struct omapfb_device *fbdev = plane->fbdev;
 813         struct lcd_panel *panel = fbdev->panel;
 814         struct omapfb_plane_info old_info;
 815         int r = 0;
 816
 817         if (pi->pos_x + pi->out_width > panel->x_res ||
 818             pi->pos_y + pi->out_height > panel->y_res)
 819                 return -EINVAL;
 820
 821         omapfb_rqueue_lock(fbdev);
 822         if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
 823                 /*
 824                  * This plane's memory was freed, can't enable it
 825                  * until it's reallocated.
 826                  */
 827                 r = -EINVAL;
 828                 goto out;
 829         }
 830         old_info = plane->info;
 831         plane->info = *pi;
 832         if (pi->enabled) {
 833                 r = ctrl_change_mode(fbi);
 834                 if (r < 0) {
 835                         plane->info = old_info;
 836                         goto out;
 837                 }
 838         }
 839         r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
 840         if (r < 0) {
 841                 plane->info = old_info;
 842                 goto out;
 843         }
 844 out:
 845         omapfb_rqueue_unlock(fbdev);
 846         return r;
 847 }
 848
 849 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 850 {
 851         struct omapfb_plane_struct *plane = fbi->par;
 852
 853         *pi = plane->info;
 854         return 0;
 855 }
 856
 857 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 858 {
 859         struct omapfb_plane_struct *plane = fbi->par;
 860         struct omapfb_device *fbdev = plane->fbdev;
 861         struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
 862         size_t size;
 863         int r = 0;
 864
 865         if (fbdev->ctrl->setup_mem == NULL)
 866                 return -ENODEV;
 867         if (mi->type > OMAPFB_MEMTYPE_MAX)
 868                 return -EINVAL;
 869
 870         size = PAGE_ALIGN(mi->size);
 871         omapfb_rqueue_lock(fbdev);
 872         if (plane->info.enabled) {
 873                 r = -EBUSY;
 874                 goto out;
 875         }
 876         if (rg->size != size || rg->type != mi->type) {
 877                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 878                 unsigned long old_size = rg->size;
 879                 u8            old_type = rg->type;
 880                 unsigned long paddr;
 881
 882                 rg->size = size;
 883                 rg->type = mi->type;
 884                 /*
 885                  * size == 0 is a special case, for which we
 886                  * don't check / adjust the screen parameters.
 887                  * This isn't a problem since the plane can't
 888                  * be reenabled unless its size is > 0.
 889                  */
 890                 if (old_size != size && size) {
 891                         if (size) {
 892                                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 893                                 r = set_fb_var(fbi, new_var);
 894                                 if (r < 0)
 895                                         goto out;
 896                         }
 897                 }
 898
 899                 if (fbdev->ctrl->sync)
 900                         fbdev->ctrl->sync();
 901                 r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
 902                 if (r < 0) {
 903                         /* Revert changes. */
 904                         rg->size = old_size;
 905                         rg->type = old_type;
 906                         goto out;
 907                 }
 908                 rg->paddr = paddr;
 909
 910                 if (old_size != size) {
 911                         if (size) {
 912                                 memcpy(&fbi->var, new_var, sizeof(fbi->var));
 913                                 set_fb_fix(fbi, 0);
 914                         } else {
 915                                 /*
 916                                  * Set these explicitly to indicate that the
 917                                  * plane memory is dealloce'd, the other
 918                                  * screen parameters in var / fix are invalid.
 919                                  */
 920                                 mutex_lock(&fbi->mm_lock);
 921                                 fbi->fix.smem_start = 0;
 922                                 fbi->fix.smem_len = 0;
 923                                 mutex_unlock(&fbi->mm_lock);
 924                         }
 925                 }
 926         }
 927 out:
 928         omapfb_rqueue_unlock(fbdev);
 929
 930         return r;
 931 }
 932
 933 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 934 {
 935         struct omapfb_plane_struct *plane = fbi->par;
 936         struct omapfb_device *fbdev = plane->fbdev;
 937         struct omapfb_mem_region *rg;
 938
 939         rg = &fbdev->mem_desc.region[plane->idx];
 940         memset(mi, 0, sizeof(*mi));
 941         mi->size = rg->size;
 942         mi->type = rg->type;
 943
 944         return 0;
 945 }
 946
 947 static int omapfb_set_color_key(struct omapfb_device *fbdev,
 948                                 struct omapfb_color_key *ck)
 949 {
 950         int r;
 951
 952         if (!fbdev->ctrl->set_color_key)
 953                 return -ENODEV;
 954
 955         omapfb_rqueue_lock(fbdev);
 956         r = fbdev->ctrl->set_color_key(ck);
 957         omapfb_rqueue_unlock(fbdev);
 958
 959         return r;
 960 }
 961
 962 static int omapfb_get_color_key(struct omapfb_device *fbdev,
 963                                 struct omapfb_color_key *ck)
 964 {
 965         int r;
 966
 967         if (!fbdev->ctrl->get_color_key)
 968                 return -ENODEV;
 969
 970         omapfb_rqueue_lock(fbdev);
 971         r = fbdev->ctrl->get_color_key(ck);
 972         omapfb_rqueue_unlock(fbdev);
 973
 974         return r;
 975 }
 976
 977 static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
 978 static int notifier_inited;
 979
 980 static void omapfb_init_notifier(void)
 981 {
 982         int i;
 983
 984         for (i = 0; i < OMAPFB_PLANE_NUM; i++)
 985                 BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
 986 }
 987
 988 int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
 989                                 omapfb_notifier_callback_t callback,
 990                                 void *callback_data)
 991 {
 992         int r;
 993
 994         if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
 995                 return -EINVAL;
 996
 997         if (!notifier_inited) {
 998                 omapfb_init_notifier();
 999                 notifier_inited = 1;
1000         }
1001
1002         omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
1003                                         unsigned long, void *))callback;
1004         omapfb_nb->data = callback_data;
1005         r = blocking_notifier_chain_register(
1006                                 &omapfb_client_list[omapfb_nb->plane_idx],
1007                                 &omapfb_nb->nb);
1008         if (r)
1009                 return r;
1010         if (omapfb_dev != NULL &&
1011             omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
1012                 omapfb_dev->ctrl->bind_client(omapfb_nb);
1013         }
1014
1015         return 0;
1016 }
1017 EXPORT_SYMBOL(omapfb_register_client);
1018
1019 int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
1020 {
1021         return blocking_notifier_chain_unregister(
1022                 &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
1023 }
1024 EXPORT_SYMBOL(omapfb_unregister_client);
1025
1026 void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
1027 {
1028         int i;
1029
1030         if (!notifier_inited)
1031                 /* no client registered yet */
1032                 return;
1033
1034         for (i = 0; i < OMAPFB_PLANE_NUM; i++)
1035                 blocking_notifier_call_chain(&omapfb_client_list[i], event,
1036                                     fbdev->fb_info[i]);
1037 }
1038 EXPORT_SYMBOL(omapfb_notify_clients);
1039
1040 static int omapfb_set_update_mode(struct omapfb_device *fbdev,
1041                                    enum omapfb_update_mode mode)
1042 {
1043         int r;
1044
1045         omapfb_rqueue_lock(fbdev);
1046         r = fbdev->ctrl->set_update_mode(mode);
1047         omapfb_rqueue_unlock(fbdev);
1048
1049         return r;
1050 }
1051
1052 static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
1053 {
1054         int r;
1055
1056         omapfb_rqueue_lock(fbdev);
1057         r = fbdev->ctrl->get_update_mode();
1058         omapfb_rqueue_unlock(fbdev);
1059
1060         return r;
1061 }
1062
1063 static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
1064                                      struct omapfb_caps *caps)
1065 {
1066         memset(caps, 0, sizeof(*caps));
1067         fbdev->ctrl->get_caps(plane, caps);
1068         caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
1069 }
1070
1071 /* For lcd testing */
1072 void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
1073 {
1074         omapfb_rqueue_lock(fbdev);
1075         *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
1076         if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
1077                 struct omapfb_update_window win;
1078
1079                 memset(&win, 0, sizeof(win));
1080                 win.width = 2;
1081                 win.height = 2;
1082                 win.out_width = 2;
1083                 win.out_height = 2;
1084                 fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
1085         }
1086         omapfb_rqueue_unlock(fbdev);
1087 }
1088 EXPORT_SYMBOL(omapfb_write_first_pixel);
1089
1090 /*
1091  * Ioctl interface. Part of the kernel mode frame buffer API is duplicated
1092  * here to be accessible by user mode code.
1093  */
1094 static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
1095                         unsigned long arg)
1096 {
1097         struct omapfb_plane_struct *plane = fbi->par;
1098         struct omapfb_device    *fbdev = plane->fbdev;
1099         struct fb_ops           *ops = fbi->fbops;
1100         union {
1101                 struct omapfb_update_window     update_window;
1102                 struct omapfb_plane_info        plane_info;
1103                 struct omapfb_mem_info          mem_info;
1104                 struct omapfb_color_key         color_key;
1105                 enum omapfb_update_mode         update_mode;
1106                 struct omapfb_caps              caps;
1107                 unsigned int            mirror;
1108                 int                     plane_out;
1109                 int                     enable_plane;
1110         } p;
1111         int r = 0;
1112
1113         BUG_ON(!ops);
1114         switch (cmd) {
1115         case OMAPFB_MIRROR:
1116                 if (get_user(p.mirror, (int __user *)arg))
1117                         r = -EFAULT;
1118                 else
1119                         omapfb_mirror(fbi, p.mirror);
1120                 break;
1121         case OMAPFB_SYNC_GFX:
1122                 omapfb_sync(fbi);
1123                 break;
1124         case OMAPFB_VSYNC:
1125                 break;
1126         case OMAPFB_SET_UPDATE_MODE:
1127                 if (get_user(p.update_mode, (int __user *)arg))
1128                         r = -EFAULT;
1129                 else
1130                         r = omapfb_set_update_mode(fbdev, p.update_mode);
1131                 break;
1132         case OMAPFB_GET_UPDATE_MODE:
1133                 p.update_mode = omapfb_get_update_mode(fbdev);
1134                 if (put_user(p.update_mode,
1135                                         (enum omapfb_update_mode __user *)arg))
1136                         r = -EFAULT;
1137                 break;
1138         case OMAPFB_UPDATE_WINDOW_OLD:
1139                 if (copy_from_user(&p.update_window, (void __user *)arg,
1140                                    sizeof(struct omapfb_update_window_old)))
1141                         r = -EFAULT;
1142                 else {
1143                         struct omapfb_update_window *u = &p.update_window;
1144                         u->out_x = u->x;
1145                         u->out_y = u->y;
1146                         u->out_width = u->width;
1147                         u->out_height = u->height;
1148                         memset(u->reserved, 0, sizeof(u->reserved));
1149                         r = omapfb_update_win(fbi, u);
1150                 }
1151                 break;
1152         case OMAPFB_UPDATE_WINDOW:
1153                 if (copy_from_user(&p.update_window, (void __user *)arg,
1154                                    sizeof(p.update_window)))
1155                         r = -EFAULT;
1156                 else
1157                         r = omapfb_update_win(fbi, &p.update_window);
1158                 break;
1159         case OMAPFB_SETUP_PLANE:
1160                 if (copy_from_user(&p.plane_info, (void __user *)arg,
1161                                    sizeof(p.plane_info)))
1162                         r = -EFAULT;
1163                 else
1164                         r = omapfb_setup_plane(fbi, &p.plane_info);
1165                 break;
1166         case OMAPFB_QUERY_PLANE:
1167                 if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
1168                         break;
1169                 if (copy_to_user((void __user *)arg, &p.plane_info,
1170                                    sizeof(p.plane_info)))
1171                         r = -EFAULT;
1172                 break;
1173         case OMAPFB_SETUP_MEM:
1174                 if (copy_from_user(&p.mem_info, (void __user *)arg,
1175                                    sizeof(p.mem_info)))
1176                         r = -EFAULT;
1177                 else
1178                         r = omapfb_setup_mem(fbi, &p.mem_info);
1179                 break;
1180         case OMAPFB_QUERY_MEM:
1181                 if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
1182                         break;
1183                 if (copy_to_user((void __user *)arg, &p.mem_info,
1184                                    sizeof(p.mem_info)))
1185                         r = -EFAULT;
1186                 break;
1187         case OMAPFB_SET_COLOR_KEY:
1188                 if (copy_from_user(&p.color_key, (void __user *)arg,
1189                                    sizeof(p.color_key)))
1190                         r = -EFAULT;
1191                 else
1192                         r = omapfb_set_color_key(fbdev, &p.color_key);
1193                 break;
1194         case OMAPFB_GET_COLOR_KEY:
1195                 if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
1196                         break;
1197                 if (copy_to_user((void __user *)arg, &p.color_key,
1198                                  sizeof(p.color_key)))
1199                         r = -EFAULT;
1200                 break;
1201         case OMAPFB_GET_CAPS:
1202                 omapfb_get_caps(fbdev, plane->idx, &p.caps);
1203                 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
1204                         r = -EFAULT;
1205                 break;
1206         case OMAPFB_LCD_TEST:
1207                 {
1208                         int test_num;
1209
1210                         if (get_user(test_num, (int __user *)arg)) {
1211                                 r = -EFAULT;
1212                                 break;
1213                         }
1214                         if (!fbdev->panel->run_test) {
1215                                 r = -EINVAL;
1216                                 break;
1217                         }
1218                         r = fbdev->panel->run_test(fbdev->panel, test_num);
1219                         break;
1220                 }
1221         case OMAPFB_CTRL_TEST:
1222                 {
1223                         int test_num;
1224
1225                         if (get_user(test_num, (int __user *)arg)) {
1226                                 r = -EFAULT;
1227                                 break;
1228                         }
1229                         if (!fbdev->ctrl->run_test) {
1230                                 r = -EINVAL;
1231                                 break;
1232                         }
1233                         r = fbdev->ctrl->run_test(test_num);
1234                         break;
1235                 }
1236         default:
1237                 r = -EINVAL;
1238         }
1239
1240         return r;
1241 }
1242
1243 static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1244 {
1245         struct omapfb_plane_struct *plane = info->par;
1246         struct omapfb_device *fbdev = plane->fbdev;
1247         int r;
1248
1249         omapfb_rqueue_lock(fbdev);
1250         r = fbdev->ctrl->mmap(info, vma);
1251         omapfb_rqueue_unlock(fbdev);
1252
1253         return r;
1254 }
1255
1256 /*
1257  * Callback table for the frame buffer framework. Some of these pointers
1258  * will be changed according to the current setting of fb_info->accel_flags.
1259  */
1260 static struct fb_ops omapfb_ops = {
1261         .owner          = THIS_MODULE,
1262         .fb_open        = omapfb_open,
1263         .fb_release     = omapfb_release,
1264         .fb_setcolreg   = omapfb_setcolreg,
1265         .fb_setcmap     = omapfb_setcmap,
1266         .fb_fillrect    = cfb_fillrect,
1267         .fb_copyarea    = cfb_copyarea,
1268         .fb_imageblit   = cfb_imageblit,
1269         .fb_blank       = omapfb_blank,
1270         .fb_ioctl       = omapfb_ioctl,
1271         .fb_check_var   = omapfb_check_var,
1272         .fb_set_par     = omapfb_set_par,
1273         .fb_rotate      = omapfb_rotate,
1274         .fb_pan_display = omapfb_pan_display,
1275 };
1276
1277 /*
1278  * ---------------------------------------------------------------------------
1279  * Sysfs interface
1280  * ---------------------------------------------------------------------------
1281  */
1282 /* omapfbX sysfs entries */
1283 static ssize_t omapfb_show_caps_num(struct device *dev,
1284                                     struct device_attribute *attr, char *buf)
1285 {
1286         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1287         int plane;
1288         size_t size;
1289         struct omapfb_caps caps;
1290
1291         plane = 0;
1292         size = 0;
1293         while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1294                 omapfb_get_caps(fbdev, plane, &caps);
1295                 size += snprintf(&buf[size], PAGE_SIZE - size,
1296                         "plane#%d %#010x %#010x %#010x\n",
1297                         plane, caps.ctrl, caps.plane_color, caps.wnd_color);
1298                 plane++;
1299         }
1300         return size;
1301 }
1302
1303 static ssize_t omapfb_show_caps_text(struct device *dev,
1304                                      struct device_attribute *attr, char *buf)
1305 {
1306         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1307         int i;
1308         struct omapfb_caps caps;
1309         int plane;
1310         size_t size;
1311
1312         plane = 0;
1313         size = 0;
1314         while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1315                 omapfb_get_caps(fbdev, plane, &caps);
1316                 size += snprintf(&buf[size], PAGE_SIZE - size,
1317                                  "plane#%d:\n", plane);
1318                 for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
1319                      size < PAGE_SIZE; i++) {
1320                         if (ctrl_caps[i].flag & caps.ctrl)
1321                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1322                                         " %s\n", ctrl_caps[i].name);
1323                 }
1324                 size += snprintf(&buf[size], PAGE_SIZE - size,
1325                                  " plane colors:\n");
1326                 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1327                      size < PAGE_SIZE; i++) {
1328                         if (color_caps[i].flag & caps.plane_color)
1329                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1330                                         "  %s\n", color_caps[i].name);
1331                 }
1332                 size += snprintf(&buf[size], PAGE_SIZE - size,
1333                                  " window colors:\n");
1334                 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1335                      size < PAGE_SIZE; i++) {
1336                         if (color_caps[i].flag & caps.wnd_color)
1337                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1338                                         "  %s\n", color_caps[i].name);
1339                 }
1340
1341                 plane++;
1342         }
1343         return size;
1344 }
1345
1346 static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
1347 static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
1348
1349 /* panel sysfs entries */
1350 static ssize_t omapfb_show_panel_name(struct device *dev,
1351                                       struct device_attribute *attr, char *buf)
1352 {
1353         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1354
1355         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
1356 }
1357
1358 static ssize_t omapfb_show_bklight_level(struct device *dev,
1359                                          struct device_attribute *attr,
1360                                          char *buf)
1361 {
1362         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1363         int r;
1364
1365         if (fbdev->panel->get_bklight_level) {
1366                 r = snprintf(buf, PAGE_SIZE, "%d\n",
1367                              fbdev->panel->get_bklight_level(fbdev->panel));
1368         } else
1369                 r = -ENODEV;
1370         return r;
1371 }
1372
1373 static ssize_t omapfb_store_bklight_level(struct device *dev,
1374                                           struct device_attribute *attr,
1375                                           const char *buf, size_t size)
1376 {
1377         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1378         int r;
1379
1380         if (fbdev->panel->set_bklight_level) {
1381                 unsigned int level;
1382
1383                 if (sscanf(buf, "%10d", &level) == 1) {
1384                         r = fbdev->panel->set_bklight_level(fbdev->panel,
1385                                                             level);
1386                 } else
1387                         r = -EINVAL;
1388         } else
1389                 r = -ENODEV;
1390         return r ? r : size;
1391 }
1392
1393 static ssize_t omapfb_show_bklight_max(struct device *dev,
1394                                        struct device_attribute *attr, char *buf)
1395 {
1396         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1397         int r;
1398
1399         if (fbdev->panel->get_bklight_level) {
1400                 r = snprintf(buf, PAGE_SIZE, "%d\n",
1401                              fbdev->panel->get_bklight_max(fbdev->panel));
1402         } else
1403                 r = -ENODEV;
1404         return r;
1405 }
1406
1407 static struct device_attribute dev_attr_panel_name =
1408         __ATTR(name, 0444, omapfb_show_panel_name, NULL);
1409 static DEVICE_ATTR(backlight_level, 0664,
1410                    omapfb_show_bklight_level, omapfb_store_bklight_level);
1411 static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
1412
1413 static struct attribute *panel_attrs[] = {
1414         &dev_attr_panel_name.attr,
1415         &dev_attr_backlight_level.attr,
1416         &dev_attr_backlight_max.attr,
1417         NULL,
1418 };
1419
1420 static struct attribute_group panel_attr_grp = {
1421         .name  = "panel",
1422         .attrs = panel_attrs,
1423 };
1424
1425 /* ctrl sysfs entries */
1426 static ssize_t omapfb_show_ctrl_name(struct device *dev,
1427                                      struct device_attribute *attr, char *buf)
1428 {
1429         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1430
1431         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
1432 }
1433
1434 static struct device_attribute dev_attr_ctrl_name =
1435         __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
1436
1437 static struct attribute *ctrl_attrs[] = {
1438         &dev_attr_ctrl_name.attr,
1439         NULL,
1440 };
1441
1442 static struct attribute_group ctrl_attr_grp = {
1443         .name  = "ctrl",
1444         .attrs = ctrl_attrs,
1445 };
1446
1447 static int omapfb_register_sysfs(struct omapfb_device *fbdev)
1448 {
1449         int r;
1450
1451         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
1452                 goto fail0;
1453
1454         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
1455                 goto fail1;
1456
1457         if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
1458                 goto fail2;
1459
1460         if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
1461                 goto fail3;
1462
1463         return 0;
1464 fail3:
1465         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1466 fail2:
1467         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1468 fail1:
1469         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1470 fail0:
1471         dev_err(fbdev->dev, "unable to register sysfs interface\n");
1472         return r;
1473 }
1474
1475 static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
1476 {
1477         sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
1478         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1479         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1480         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1481 }
1482
1483 /*
1484  * ---------------------------------------------------------------------------
1485  * LDM callbacks
1486  * ---------------------------------------------------------------------------
1487  */
1488 /* Initialize system fb_info object and set the default video mode.
1489  * The frame buffer memory already allocated by lcddma_init
1490  */
1491 static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
1492 {
1493         struct fb_var_screeninfo        *var = &info->var;
1494         struct fb_fix_screeninfo        *fix = &info->fix;
1495         int                             r = 0;
1496
1497         info->fbops = &omapfb_ops;
1498         info->flags = FBINFO_FLAG_DEFAULT;
1499
1500         strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
1501
1502         info->pseudo_palette = fbdev->pseudo_palette;
1503
1504         var->accel_flags  = def_accel ? FB_ACCELF_TEXT : 0;
1505         var->xres = def_vxres;
1506         var->yres = def_vyres;
1507         var->xres_virtual = def_vxres;
1508         var->yres_virtual = def_vyres;
1509         var->rotate       = def_rotate;
1510         var->bits_per_pixel = fbdev->panel->bpp;
1511
1512         set_fb_var(info, var);
1513         set_fb_fix(info, 1);
1514
1515         r = fb_alloc_cmap(&info->cmap, 16, 0);
1516         if (r != 0)
1517                 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1518
1519         return r;
1520 }
1521
1522 /* Release the fb_info object */
1523 static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
1524 {
1525         fb_dealloc_cmap(&fbi->cmap);
1526 }
1527
1528 static void planes_cleanup(struct omapfb_device *fbdev)
1529 {
1530         int i;
1531
1532         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1533                 if (fbdev->fb_info[i] == NULL)
1534                         break;
1535                 fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
1536                 framebuffer_release(fbdev->fb_info[i]);
1537         }
1538 }
1539
1540 static int planes_init(struct omapfb_device *fbdev)
1541 {
1542         struct fb_info *fbi;
1543         int i;
1544         int r;
1545
1546         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1547                 struct omapfb_plane_struct *plane;
1548                 fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
1549                                         fbdev->dev);
1550                 if (fbi == NULL) {
1551                         dev_err(fbdev->dev,
1552                                 "unable to allocate memory for plane info\n");
1553                         planes_cleanup(fbdev);
1554                         return -ENOMEM;
1555                 }
1556                 plane = fbi->par;
1557                 plane->idx = i;
1558                 plane->fbdev = fbdev;
1559                 plane->info.mirror = def_mirror;
1560                 fbdev->fb_info[i] = fbi;
1561
1562                 if ((r = fbinfo_init(fbdev, fbi)) < 0) {
1563                         framebuffer_release(fbi);
1564                         planes_cleanup(fbdev);
1565                         return r;
1566                 }
1567                 plane->info.out_width = fbi->var.xres;
1568                 plane->info.out_height = fbi->var.yres;
1569         }
1570         return 0;
1571 }
1572
1573 /*
1574  * Free driver resources. Can be called to rollback an aborted initialization
1575  * sequence.
1576  */
1577 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
1578 {
1579         int i;
1580
1581         switch (state) {
1582         case OMAPFB_ACTIVE:
1583                 for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
1584                         unregister_framebuffer(fbdev->fb_info[i]);
1585         case 7:
1586                 omapfb_unregister_sysfs(fbdev);
1587         case 6:
1588                 fbdev->panel->disable(fbdev->panel);
1589         case 5:
1590                 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1591         case 4:
1592                 planes_cleanup(fbdev);
1593         case 3:
1594                 ctrl_cleanup(fbdev);
1595         case 2:
1596                 fbdev->panel->cleanup(fbdev->panel);
1597         case 1:
1598                 dev_set_drvdata(fbdev->dev, NULL);
1599                 kfree(fbdev);
1600         case 0:
1601                 /* nothing to free */
1602                 break;
1603         default:
1604                 BUG();
1605         }
1606 }
1607
1608 static int omapfb_find_ctrl(struct omapfb_device *fbdev)
1609 {
1610         struct omapfb_platform_data *conf;
1611         char name[17];
1612         int i;
1613
1614         conf = fbdev->dev->platform_data;
1615
1616         fbdev->ctrl = NULL;
1617
1618         strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
1619         name[sizeof(name) - 1] = '\0';
1620
1621         if (strcmp(name, "internal") == 0) {
1622                 fbdev->ctrl = fbdev->int_ctrl;
1623                 return 0;
1624         }
1625
1626         for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
1627                 dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
1628                 if (strcmp(ctrls[i]->name, name) == 0) {
1629                         fbdev->ctrl = ctrls[i];
1630                         break;
1631                 }
1632         }
1633
1634         if (fbdev->ctrl == NULL) {
1635                 dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
1636                 return -1;
1637         }
1638
1639         return 0;
1640 }
1641
1642 static void check_required_callbacks(struct omapfb_device *fbdev)
1643 {
1644 #define _C(x) (fbdev->ctrl->x != NULL)
1645 #define _P(x) (fbdev->panel->x != NULL)
1646         BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
1647         BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
1648                  _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
1649                  _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
1650                  _P(get_caps)));
1651 #undef _P
1652 #undef _C
1653 }
1654
1655 /*
1656  * Called by LDM binding to probe and attach a new device.
1657  * Initialization sequence:
1658  *   1. allocate system omapfb_device structure
1659  *   2. select controller type according to platform configuration
1660  *      init LCD panel
1661  *   3. init LCD controller and LCD DMA
1662  *   4. init system fb_info structure for all planes
1663  *   5. setup video mode for first plane and enable it
1664  *   6. enable LCD panel
1665  *   7. register sysfs attributes
1666  *   OMAPFB_ACTIVE: register system fb_info structure for all planes
1667  */
1668 static int omapfb_do_probe(struct platform_device *pdev,
1669                                 struct lcd_panel *panel)
1670 {
1671         struct omapfb_device    *fbdev = NULL;
1672         int                     init_state;
1673         unsigned long           phz, hhz, vhz;
1674         unsigned long           vram;
1675         int                     i;
1676         int                     r = 0;
1677
1678         init_state = 0;
1679
1680         if (pdev->num_resources != 0) {
1681                 dev_err(&pdev->dev, "probed for an unknown device\n");
1682                 r = -ENODEV;
1683                 goto cleanup;
1684         }
1685
1686         if (pdev->dev.platform_data == NULL) {
1687                 dev_err(&pdev->dev, "missing platform data\n");
1688                 r = -ENOENT;
1689                 goto cleanup;
1690         }
1691
1692         fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
1693         if (fbdev == NULL) {
1694                 dev_err(&pdev->dev,
1695                         "unable to allocate memory for device info\n");
1696                 r = -ENOMEM;
1697                 goto cleanup;
1698         }
1699         init_state++;
1700
1701         fbdev->dev = &pdev->dev;
1702         fbdev->panel = panel;
1703         platform_set_drvdata(pdev, fbdev);
1704
1705         mutex_init(&fbdev->rqueue_mutex);
1706
1707 #ifdef CONFIG_ARCH_OMAP1
1708         fbdev->int_ctrl = &omap1_int_ctrl;
1709 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1710         fbdev->ext_if = &omap1_ext_if;
1711 #endif
1712 #else   /* OMAP2 */
1713         fbdev->int_ctrl = &omap2_int_ctrl;
1714 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1715         fbdev->ext_if = &omap2_ext_if;
1716 #endif
1717 #endif
1718         if (omapfb_find_ctrl(fbdev) < 0) {
1719                 dev_err(fbdev->dev,
1720                         "LCD controller not found, board not supported\n");
1721                 r = -ENODEV;
1722                 goto cleanup;
1723         }
1724
1725         r = fbdev->panel->init(fbdev->panel, fbdev);
1726         if (r)
1727                 goto cleanup;
1728
1729         pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
1730
1731         def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
1732         def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
1733
1734         init_state++;
1735
1736         r = ctrl_init(fbdev);
1737         if (r)
1738                 goto cleanup;
1739         if (fbdev->ctrl->mmap != NULL)
1740                 omapfb_ops.fb_mmap = omapfb_mmap;
1741         init_state++;
1742
1743         check_required_callbacks(fbdev);
1744
1745         r = planes_init(fbdev);
1746         if (r)
1747                 goto cleanup;
1748         init_state++;
1749
1750 #ifdef CONFIG_FB_OMAP_DMA_TUNE
1751         /* Set DMA priority for EMIFF access to highest */
1752         if (cpu_class_is_omap1())
1753                 omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
1754 #endif
1755
1756         r = ctrl_change_mode(fbdev->fb_info[0]);
1757         if (r) {
1758                 dev_err(fbdev->dev, "mode setting failed\n");
1759                 goto cleanup;
1760         }
1761
1762         /* GFX plane is enabled by default */
1763         r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
1764         if (r)
1765                 goto cleanup;
1766
1767         omapfb_set_update_mode(fbdev, manual_update ?
1768                                    OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
1769         init_state++;
1770
1771         r = fbdev->panel->enable(fbdev->panel);
1772         if (r)
1773                 goto cleanup;
1774         init_state++;
1775
1776         r = omapfb_register_sysfs(fbdev);
1777         if (r)
1778                 goto cleanup;
1779         init_state++;
1780
1781         vram = 0;
1782         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1783                 r = register_framebuffer(fbdev->fb_info[i]);
1784                 if (r != 0) {
1785                         dev_err(fbdev->dev,
1786                                 "registering framebuffer %d failed\n", i);
1787                         goto cleanup;
1788                 }
1789                 vram += fbdev->mem_desc.region[i].size;
1790         }
1791
1792         fbdev->state = OMAPFB_ACTIVE;
1793
1794         panel = fbdev->panel;
1795         phz = panel->pixel_clock * 1000;
1796         hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
1797         vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
1798
1799         omapfb_dev = fbdev;
1800
1801         pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
1802                         vram, fbdev->mem_desc.region_cnt);
1803         pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
1804                         "vfreq %lu.%lu Hz\n",
1805                         phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
1806
1807         return 0;
1808
1809 cleanup:
1810         omapfb_free_resources(fbdev, init_state);
1811
1812         return r;
1813 }
1814
1815 static int omapfb_probe(struct platform_device *pdev)
1816 {
1817         BUG_ON(fbdev_pdev != NULL);
1818
1819         /* Delay actual initialization until the LCD is registered */
1820         fbdev_pdev = pdev;
1821         if (fbdev_panel != NULL)
1822                 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1823         return 0;
1824 }
1825
1826 void omapfb_register_panel(struct lcd_panel *panel)
1827 {
1828         BUG_ON(fbdev_panel != NULL);
1829
1830         fbdev_panel = panel;
1831         if (fbdev_pdev != NULL)
1832                 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1833 }
1834
1835 /* Called when the device is being detached from the driver */
1836 static int omapfb_remove(struct platform_device *pdev)
1837 {
1838         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1839         enum omapfb_state saved_state = fbdev->state;
1840
1841         /* FIXME: wait till completion of pending events */
1842
1843         fbdev->state = OMAPFB_DISABLED;
1844         omapfb_free_resources(fbdev, saved_state);
1845
1846         return 0;
1847 }
1848
1849 /* PM suspend */
1850 static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
1851 {
1852         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1853
1854         if (fbdev != NULL)
1855                 omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
1856         return 0;
1857 }
1858
1859 /* PM resume */
1860 static int omapfb_resume(struct platform_device *pdev)
1861 {
1862         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1863
1864         if (fbdev != NULL)
1865                 omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
1866         return 0;
1867 }
1868
1869 static struct platform_driver omapfb_driver = {
1870         .probe          = omapfb_probe,
1871         .remove         = omapfb_remove,
1872         .suspend        = omapfb_suspend,
1873         .resume         = omapfb_resume,
1874         .driver         = {
1875                 .name   = MODULE_NAME,
1876                 .owner  = THIS_MODULE,
1877         },
1878 };
1879
1880 #ifndef MODULE
1881
1882 /* Process kernel command line parameters */
1883 static int __init omapfb_setup(char *options)
1884 {
1885         char *this_opt = NULL;
1886         int r = 0;
1887
1888         pr_debug("omapfb: options %s\n", options);
1889
1890         if (!options || !*options)
1891                 return 0;
1892
1893         while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1894                 if (!strncmp(this_opt, "accel", 5))
1895                         def_accel = 1;
1896                 else if (!strncmp(this_opt, "vram:", 5)) {
1897                         char *suffix;
1898                         unsigned long vram;
1899                         vram = (simple_strtoul(this_opt + 5, &suffix, 0));
1900                         switch (suffix[0]) {
1901                         case '\0':
1902                                 break;
1903                         case 'm':
1904                         case 'M':
1905                                 vram *= 1024;
1906                                 /* Fall through */
1907                         case 'k':
1908                         case 'K':
1909                                 vram *= 1024;
1910                                 break;
1911                         default:
1912                                 pr_debug("omapfb: invalid vram suffix %c\n",
1913                                          suffix[0]);
1914                                 r = -1;
1915                         }
1916                         def_vram[def_vram_cnt++] = vram;
1917                 }
1918                 else if (!strncmp(this_opt, "vxres:", 6))
1919                         def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
1920                 else if (!strncmp(this_opt, "vyres:", 6))
1921                         def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
1922                 else if (!strncmp(this_opt, "rotate:", 7))
1923                         def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
1924                 else if (!strncmp(this_opt, "mirror:", 7))
1925                         def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
1926                 else if (!strncmp(this_opt, "manual_update", 13))
1927                         manual_update = 1;
1928                 else {
1929                         pr_debug("omapfb: invalid option\n");
1930                         r = -1;
1931                 }
1932         }
1933
1934         return r;
1935 }
1936
1937 #endif
1938
1939 /* Register both the driver and the device */
1940 static int __init omapfb_init(void)
1941 {
1942 #ifndef MODULE
1943         char *option;
1944
1945         if (fb_get_options("omapfb", &option))
1946                 return -ENODEV;
1947         omapfb_setup(option);
1948 #endif
1949         /* Register the driver with LDM */
1950         if (platform_driver_register(&omapfb_driver)) {
1951                 pr_debug("failed to register omapfb driver\n");
1952                 return -ENODEV;
1953         }
1954
1955         return 0;
1956 }
1957
1958 static void __exit omapfb_cleanup(void)
1959 {
1960         platform_driver_unregister(&omapfb_driver);
1961 }
1962
1963 module_param_named(accel, def_accel, uint, 0664);
1964 module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
1965 module_param_named(vxres, def_vxres, long, 0664);
1966 module_param_named(vyres, def_vyres, long, 0664);
1967 module_param_named(rotate, def_rotate, uint, 0664);
1968 module_param_named(mirror, def_mirror, uint, 0664);
1969 module_param_named(manual_update, manual_update, bool, 0664);
1970
1971 module_init(omapfb_init);
1972 module_exit(omapfb_cleanup);
1973
1974 MODULE_DESCRIPTION("TI OMAP framebuffer driver");
1975 MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
1976 MODULE_LICENSE("GPL");