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/slab.h>
  30 #include <linux/uaccess.h>
  31 #include <linux/module.h>
  32
  33 #include <plat/dma.h>
  34
  35 #include "omapfb.h"
  36 #include "lcdc.h"
  37 #include "dispc.h"
  38
  39 #define MODULE_NAME     "omapfb"
  40
  41 static unsigned int     def_accel;
  42 static unsigned long    def_vram[OMAPFB_PLANE_NUM];
  43 static unsigned int     def_vram_cnt;
  44 static unsigned long    def_vxres;
  45 static unsigned long    def_vyres;
  46 static unsigned int     def_rotate;
  47 static unsigned int     def_mirror;
  48
  49 #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
  50 static bool             manual_update = 1;
  51 #else
  52 static bool             manual_update;
  53 #endif
  54
  55 static struct platform_device   *fbdev_pdev;
  56 static struct lcd_panel         *fbdev_panel;
  57 static struct omapfb_device     *omapfb_dev;
  58
  59 struct caps_table_struct {
  60         unsigned long flag;
  61         const char *name;
  62 };
  63
  64 static struct caps_table_struct ctrl_caps[] = {
  65         { OMAPFB_CAPS_MANUAL_UPDATE,  "manual update" },
  66         { OMAPFB_CAPS_TEARSYNC,       "tearing synchronization" },
  67         { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
  68         { OMAPFB_CAPS_PLANE_SCALE,    "scale plane" },
  69         { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
  70         { OMAPFB_CAPS_WINDOW_SCALE,   "scale window" },
  71         { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
  72         { OMAPFB_CAPS_WINDOW_ROTATE,  "rotate window" },
  73         { OMAPFB_CAPS_SET_BACKLIGHT,  "backlight setting" },
  74 };
  75
  76 static struct caps_table_struct color_caps[] = {
  77         { 1 << OMAPFB_COLOR_RGB565,     "RGB565", },
  78         { 1 << OMAPFB_COLOR_YUV422,     "YUV422", },
  79         { 1 << OMAPFB_COLOR_YUV420,     "YUV420", },
  80         { 1 << OMAPFB_COLOR_CLUT_8BPP,  "CLUT8", },
  81         { 1 << OMAPFB_COLOR_CLUT_4BPP,  "CLUT4", },
  82         { 1 << OMAPFB_COLOR_CLUT_2BPP,  "CLUT2", },
  83         { 1 << OMAPFB_COLOR_CLUT_1BPP,  "CLUT1", },
  84         { 1 << OMAPFB_COLOR_RGB444,     "RGB444", },
  85         { 1 << OMAPFB_COLOR_YUY422,     "YUY422", },
  86 };
  87
  88 static void omapdss_release(struct device *dev)
  89 {
  90 }
  91
  92 /* dummy device for clocks */
  93 static struct platform_device omapdss_device = {
  94         .name           = "omapdss_dss",
  95         .id             = -1,
  96         .dev            = {
  97                 .release = omapdss_release,
  98         },
  99 };
 100
 101 /*
 102  * ---------------------------------------------------------------------------
 103  * LCD panel
 104  * ---------------------------------------------------------------------------
 105  */
 106 extern struct lcd_ctrl hwa742_ctrl;
 107 extern struct lcd_ctrl blizzard_ctrl;
 108
 109 static const struct lcd_ctrl *ctrls[] = {
 110 #ifdef CONFIG_ARCH_OMAP1
 111         &omap1_int_ctrl,
 112 #else
 113         &omap2_int_ctrl,
 114 #endif
 115
 116 #ifdef CONFIG_FB_OMAP_LCDC_HWA742
 117         &hwa742_ctrl,
 118 #endif
 119 #ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD
 120         &blizzard_ctrl,
 121 #endif
 122 };
 123
 124 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
 125 #ifdef CONFIG_ARCH_OMAP1
 126 extern struct lcd_ctrl_extif omap1_ext_if;
 127 #else
 128 extern struct lcd_ctrl_extif omap2_ext_if;
 129 #endif
 130 #endif
 131
 132 static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
 133 {
 134         mutex_lock(&fbdev->rqueue_mutex);
 135 }
 136
 137 static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
 138 {
 139         mutex_unlock(&fbdev->rqueue_mutex);
 140 }
 141
 142 /*
 143  * ---------------------------------------------------------------------------
 144  * LCD controller and LCD DMA
 145  * ---------------------------------------------------------------------------
 146  */
 147 /* Lookup table to map elem size to elem type. */
 148 static const int dma_elem_type[] = {
 149         0,
 150         OMAP_DMA_DATA_TYPE_S8,
 151         OMAP_DMA_DATA_TYPE_S16,
 152         0,
 153         OMAP_DMA_DATA_TYPE_S32,
 154 };
 155
 156 /*
 157  * Allocate resources needed for LCD controller and LCD DMA operations. Video
 158  * memory is allocated from system memory according to the virtual display
 159  * size, except if a bigger memory size is specified explicitly as a kernel
 160  * parameter.
 161  */
 162 static int ctrl_init(struct omapfb_device *fbdev)
 163 {
 164         int r;
 165         int i;
 166
 167         /* kernel/module vram parameters override boot tags/board config */
 168         if (def_vram_cnt) {
 169                 for (i = 0; i < def_vram_cnt; i++)
 170                         fbdev->mem_desc.region[i].size =
 171                                 PAGE_ALIGN(def_vram[i]);
 172                 fbdev->mem_desc.region_cnt = i;
 173         } else {
 174                 struct omapfb_platform_data *conf;
 175
 176                 conf = fbdev->dev->platform_data;
 177                 fbdev->mem_desc = conf->mem_desc;
 178         }
 179
 180         if (!fbdev->mem_desc.region_cnt) {
 181                 struct lcd_panel *panel = fbdev->panel;
 182                 int def_size;
 183                 int bpp = panel->bpp;
 184
 185                 /* 12 bpp is packed in 16 bits */
 186                 if (bpp == 12)
 187                         bpp = 16;
 188                 def_size = def_vxres * def_vyres * bpp / 8;
 189                 fbdev->mem_desc.region_cnt = 1;
 190                 fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
 191         }
 192         r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
 193         if (r < 0) {
 194                 dev_err(fbdev->dev, "controller initialization failed (%d)\n",
 195                         r);
 196                 return r;
 197         }
 198
 199 #ifdef DEBUG
 200         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
 201                 dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
 202                          i,
 203                          fbdev->mem_desc.region[i].paddr,
 204                          fbdev->mem_desc.region[i].vaddr,
 205                          fbdev->mem_desc.region[i].size);
 206         }
 207 #endif
 208         return 0;
 209 }
 210
 211 static void ctrl_cleanup(struct omapfb_device *fbdev)
 212 {
 213         fbdev->ctrl->cleanup();
 214 }
 215
 216 /* Must be called with fbdev->rqueue_mutex held. */
 217 static int ctrl_change_mode(struct fb_info *fbi)
 218 {
 219         int r;
 220         unsigned long offset;
 221         struct omapfb_plane_struct *plane = fbi->par;
 222         struct omapfb_device *fbdev = plane->fbdev;
 223         struct fb_var_screeninfo *var = &fbi->var;
 224
 225         offset = var->yoffset * fbi->fix.line_length +
 226                  var->xoffset * var->bits_per_pixel / 8;
 227
 228         if (fbdev->ctrl->sync)
 229                 fbdev->ctrl->sync();
 230         r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
 231                                  offset, var->xres_virtual,
 232                                  plane->info.pos_x, plane->info.pos_y,
 233                                  var->xres, var->yres, plane->color_mode);
 234         if (r < 0)
 235                 return r;
 236
 237         if (fbdev->ctrl->set_rotate != NULL) {
 238                 r = fbdev->ctrl->set_rotate(var->rotate);
 239                 if (r < 0)
 240                         return r;
 241         }
 242
 243         if (fbdev->ctrl->set_scale != NULL)
 244                 r = fbdev->ctrl->set_scale(plane->idx,
 245                                    var->xres, var->yres,
 246                                    plane->info.out_width,
 247                                    plane->info.out_height);
 248
 249         return r;
 250 }
 251
 252 /*
 253  * ---------------------------------------------------------------------------
 254  * fbdev framework callbacks and the ioctl interface
 255  * ---------------------------------------------------------------------------
 256  */
 257 /* Called each time the omapfb device is opened */
 258 static int omapfb_open(struct fb_info *info, int user)
 259 {
 260         return 0;
 261 }
 262
 263 static void omapfb_sync(struct fb_info *info);
 264
 265 /* Called when the omapfb device is closed. We make sure that any pending
 266  * gfx DMA operations are ended, before we return. */
 267 static int omapfb_release(struct fb_info *info, int user)
 268 {
 269         omapfb_sync(info);
 270         return 0;
 271 }
 272
 273 /* Store a single color palette entry into a pseudo palette or the hardware
 274  * palette if one is available. For now we support only 16bpp and thus store
 275  * the entry only to the pseudo palette.
 276  */
 277 static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
 278                         u_int blue, u_int transp, int update_hw_pal)
 279 {
 280         struct omapfb_plane_struct *plane = info->par;
 281         struct omapfb_device *fbdev = plane->fbdev;
 282         struct fb_var_screeninfo *var = &info->var;
 283         int r = 0;
 284
 285         switch (plane->color_mode) {
 286         case OMAPFB_COLOR_YUV422:
 287         case OMAPFB_COLOR_YUV420:
 288         case OMAPFB_COLOR_YUY422:
 289                 r = -EINVAL;
 290                 break;
 291         case OMAPFB_COLOR_CLUT_8BPP:
 292         case OMAPFB_COLOR_CLUT_4BPP:
 293         case OMAPFB_COLOR_CLUT_2BPP:
 294         case OMAPFB_COLOR_CLUT_1BPP:
 295                 if (fbdev->ctrl->setcolreg)
 296                         r = fbdev->ctrl->setcolreg(regno, red, green, blue,
 297                                                         transp, update_hw_pal);
 298                 /* Fallthrough */
 299         case OMAPFB_COLOR_RGB565:
 300         case OMAPFB_COLOR_RGB444:
 301                 if (r != 0)
 302                         break;
 303
 304                 if (regno < 0) {
 305                         r = -EINVAL;
 306                         break;
 307                 }
 308
 309                 if (regno < 16) {
 310                         u16 pal;
 311                         pal = ((red >> (16 - var->red.length)) <<
 312                                         var->red.offset) |
 313                               ((green >> (16 - var->green.length)) <<
 314                                         var->green.offset) |
 315                               (blue >> (16 - var->blue.length));
 316                         ((u32 *)(info->pseudo_palette))[regno] = pal;
 317                 }
 318                 break;
 319         default:
 320                 BUG();
 321         }
 322         return r;
 323 }
 324
 325 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 326                             u_int transp, struct fb_info *info)
 327 {
 328         return _setcolreg(info, regno, red, green, blue, transp, 1);
 329 }
 330
 331 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
 332 {
 333         int count, index, r;
 334         u16 *red, *green, *blue, *transp;
 335         u16 trans = 0xffff;
 336
 337         red     = cmap->red;
 338         green   = cmap->green;
 339         blue    = cmap->blue;
 340         transp  = cmap->transp;
 341         index   = cmap->start;
 342
 343         for (count = 0; count < cmap->len; count++) {
 344                 if (transp)
 345                         trans = *transp++;
 346                 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
 347                                 count == cmap->len - 1);
 348                 if (r != 0)
 349                         return r;
 350         }
 351
 352         return 0;
 353 }
 354
 355 static int omapfb_update_full_screen(struct fb_info *fbi);
 356
 357 static int omapfb_blank(int blank, struct fb_info *fbi)
 358 {
 359         struct omapfb_plane_struct *plane = fbi->par;
 360         struct omapfb_device *fbdev = plane->fbdev;
 361         int do_update = 0;
 362         int r = 0;
 363
 364         omapfb_rqueue_lock(fbdev);
 365         switch (blank) {
 366         case FB_BLANK_UNBLANK:
 367                 if (fbdev->state == OMAPFB_SUSPENDED) {
 368                         if (fbdev->ctrl->resume)
 369                                 fbdev->ctrl->resume();
 370                         fbdev->panel->enable(fbdev->panel);
 371                         fbdev->state = OMAPFB_ACTIVE;
 372                         if (fbdev->ctrl->get_update_mode() ==
 373                                         OMAPFB_MANUAL_UPDATE)
 374                                 do_update = 1;
 375                 }
 376                 break;
 377         case FB_BLANK_POWERDOWN:
 378                 if (fbdev->state == OMAPFB_ACTIVE) {
 379                         fbdev->panel->disable(fbdev->panel);
 380                         if (fbdev->ctrl->suspend)
 381                                 fbdev->ctrl->suspend();
 382                         fbdev->state = OMAPFB_SUSPENDED;
 383                 }
 384                 break;
 385         default:
 386                 r = -EINVAL;
 387         }
 388         omapfb_rqueue_unlock(fbdev);
 389
 390         if (r == 0 && do_update)
 391                 r = omapfb_update_full_screen(fbi);
 392
 393         return r;
 394 }
 395
 396 static void omapfb_sync(struct fb_info *fbi)
 397 {
 398         struct omapfb_plane_struct *plane = fbi->par;
 399         struct omapfb_device *fbdev = plane->fbdev;
 400
 401         omapfb_rqueue_lock(fbdev);
 402         if (fbdev->ctrl->sync)
 403                 fbdev->ctrl->sync();
 404         omapfb_rqueue_unlock(fbdev);
 405 }
 406
 407 /*
 408  * Set fb_info.fix fields and also updates fbdev.
 409  * When calling this fb_info.var must be set up already.
 410  */
 411 static void set_fb_fix(struct fb_info *fbi, int from_init)
 412 {
 413         struct fb_fix_screeninfo *fix = &fbi->fix;
 414         struct fb_var_screeninfo *var = &fbi->var;
 415         struct omapfb_plane_struct *plane = fbi->par;
 416         struct omapfb_mem_region *rg;
 417         int bpp;
 418
 419         rg = &plane->fbdev->mem_desc.region[plane->idx];
 420         fbi->screen_base        = rg->vaddr;
 421
 422         if (!from_init) {
 423                 mutex_lock(&fbi->mm_lock);
 424                 fix->smem_start         = rg->paddr;
 425                 fix->smem_len           = rg->size;
 426                 mutex_unlock(&fbi->mm_lock);
 427         } else {
 428                 fix->smem_start         = rg->paddr;
 429                 fix->smem_len           = rg->size;
 430         }
 431
 432         fix->type = FB_TYPE_PACKED_PIXELS;
 433         bpp = var->bits_per_pixel;
 434         if (var->nonstd)
 435                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 436         else switch (var->bits_per_pixel) {
 437         case 16:
 438         case 12:
 439                 fix->visual = FB_VISUAL_TRUECOLOR;
 440                 /* 12bpp is stored in 16 bits */
 441                 bpp = 16;
 442                 break;
 443         case 1:
 444         case 2:
 445         case 4:
 446         case 8:
 447                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 448                 break;
 449         }
 450         fix->accel              = FB_ACCEL_OMAP1610;
 451         fix->line_length        = var->xres_virtual * bpp / 8;
 452 }
 453
 454 static int set_color_mode(struct omapfb_plane_struct *plane,
 455                           struct fb_var_screeninfo *var)
 456 {
 457         switch (var->nonstd) {
 458         case 0:
 459                 break;
 460         case OMAPFB_COLOR_YUV422:
 461                 var->bits_per_pixel = 16;
 462                 plane->color_mode = var->nonstd;
 463                 return 0;
 464         case OMAPFB_COLOR_YUV420:
 465                 var->bits_per_pixel = 12;
 466                 plane->color_mode = var->nonstd;
 467                 return 0;
 468         case OMAPFB_COLOR_YUY422:
 469                 var->bits_per_pixel = 16;
 470                 plane->color_mode = var->nonstd;
 471                 return 0;
 472         default:
 473                 return -EINVAL;
 474         }
 475
 476         switch (var->bits_per_pixel) {
 477         case 1:
 478                 plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
 479                 return 0;
 480         case 2:
 481                 plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
 482                 return 0;
 483         case 4:
 484                 plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
 485                 return 0;
 486         case 8:
 487                 plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
 488                 return 0;
 489         case 12:
 490                 var->bits_per_pixel = 16;
 491         case 16:
 492                 if (plane->fbdev->panel->bpp == 12)
 493                         plane->color_mode = OMAPFB_COLOR_RGB444;
 494                 else
 495                         plane->color_mode = OMAPFB_COLOR_RGB565;
 496                 return 0;
 497         default:
 498                 return -EINVAL;
 499         }
 500 }
 501
 502 /*
 503  * Check the values in var against our capabilities and in case of out of
 504  * bound values try to adjust them.
 505  */
 506 static int set_fb_var(struct fb_info *fbi,
 507                       struct fb_var_screeninfo *var)
 508 {
 509         int             bpp;
 510         unsigned long   max_frame_size;
 511         unsigned long   line_size;
 512         int             xres_min, xres_max;
 513         int             yres_min, yres_max;
 514         struct omapfb_plane_struct *plane = fbi->par;
 515         struct omapfb_device *fbdev = plane->fbdev;
 516         struct lcd_panel *panel = fbdev->panel;
 517
 518         if (set_color_mode(plane, var) < 0)
 519                 return -EINVAL;
 520
 521         bpp = var->bits_per_pixel;
 522         if (plane->color_mode == OMAPFB_COLOR_RGB444)
 523                 bpp = 16;
 524
 525         switch (var->rotate) {
 526         case 0:
 527         case 180:
 528                 xres_min = OMAPFB_PLANE_XRES_MIN;
 529                 xres_max = panel->x_res;
 530                 yres_min = OMAPFB_PLANE_YRES_MIN;
 531                 yres_max = panel->y_res;
 532                 if (cpu_is_omap15xx()) {
 533                         var->xres = panel->x_res;
 534                         var->yres = panel->y_res;
 535                 }
 536                 break;
 537         case 90:
 538         case 270:
 539                 xres_min = OMAPFB_PLANE_YRES_MIN;
 540                 xres_max = panel->y_res;
 541                 yres_min = OMAPFB_PLANE_XRES_MIN;
 542                 yres_max = panel->x_res;
 543                 if (cpu_is_omap15xx()) {
 544                         var->xres = panel->y_res;
 545                         var->yres = panel->x_res;
 546                 }
 547                 break;
 548         default:
 549                 return -EINVAL;
 550         }
 551
 552         if (var->xres < xres_min)
 553                 var->xres = xres_min;
 554         if (var->yres < yres_min)
 555                 var->yres = yres_min;
 556         if (var->xres > xres_max)
 557                 var->xres = xres_max;
 558         if (var->yres > yres_max)
 559                 var->yres = yres_max;
 560
 561         if (var->xres_virtual < var->xres)
 562                 var->xres_virtual = var->xres;
 563         if (var->yres_virtual < var->yres)
 564                 var->yres_virtual = var->yres;
 565         max_frame_size = fbdev->mem_desc.region[plane->idx].size;
 566         line_size = var->xres_virtual * bpp / 8;
 567         if (line_size * var->yres_virtual > max_frame_size) {
 568                 /* Try to keep yres_virtual first */
 569                 line_size = max_frame_size / var->yres_virtual;
 570                 var->xres_virtual = line_size * 8 / bpp;
 571                 if (var->xres_virtual < var->xres) {
 572                         /* Still doesn't fit. Shrink yres_virtual too */
 573                         var->xres_virtual = var->xres;
 574                         line_size = var->xres * bpp / 8;
 575                         var->yres_virtual = max_frame_size / line_size;
 576                 }
 577                 /* Recheck this, as the virtual size changed. */
 578                 if (var->xres_virtual < var->xres)
 579                         var->xres = var->xres_virtual;
 580                 if (var->yres_virtual < var->yres)
 581                         var->yres = var->yres_virtual;
 582                 if (var->xres < xres_min || var->yres < yres_min)
 583                         return -EINVAL;
 584         }
 585         if (var->xres + var->xoffset > var->xres_virtual)
 586                 var->xoffset = var->xres_virtual - var->xres;
 587         if (var->yres + var->yoffset > var->yres_virtual)
 588                 var->yoffset = var->yres_virtual - var->yres;
 589
 590         if (plane->color_mode == OMAPFB_COLOR_RGB444) {
 591                 var->red.offset   = 8; var->red.length   = 4;
 592                                                 var->red.msb_right   = 0;
 593                 var->green.offset = 4; var->green.length = 4;
 594                                                 var->green.msb_right = 0;
 595                 var->blue.offset  = 0; var->blue.length  = 4;
 596                                                 var->blue.msb_right  = 0;
 597         } else {
 598                 var->red.offset  = 11; var->red.length   = 5;
 599                                                 var->red.msb_right   = 0;
 600                 var->green.offset = 5;  var->green.length = 6;
 601                                                 var->green.msb_right = 0;
 602                 var->blue.offset = 0;  var->blue.length  = 5;
 603                                                 var->blue.msb_right  = 0;
 604         }
 605
 606         var->height             = -1;
 607         var->width              = -1;
 608         var->grayscale          = 0;
 609
 610         /* pixclock in ps, the rest in pixclock */
 611         var->pixclock           = 10000000 / (panel->pixel_clock / 100);
 612         var->left_margin        = panel->hfp;
 613         var->right_margin       = panel->hbp;
 614         var->upper_margin       = panel->vfp;
 615         var->lower_margin       = panel->vbp;
 616         var->hsync_len          = panel->hsw;
 617         var->vsync_len          = panel->vsw;
 618
 619         /* TODO: get these from panel->config */
 620         var->vmode              = FB_VMODE_NONINTERLACED;
 621         var->sync               = 0;
 622
 623         return 0;
 624 }
 625
 626
 627 /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
 628 static void omapfb_rotate(struct fb_info *fbi, int rotate)
 629 {
 630         struct omapfb_plane_struct *plane = fbi->par;
 631         struct omapfb_device *fbdev = plane->fbdev;
 632
 633         omapfb_rqueue_lock(fbdev);
 634         if (rotate != fbi->var.rotate) {
 635                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 636
 637                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 638                 new_var->rotate = rotate;
 639                 if (set_fb_var(fbi, new_var) == 0 &&
 640                     memcmp(new_var, &fbi->var, sizeof(*new_var))) {
 641                         memcpy(&fbi->var, new_var, sizeof(*new_var));
 642                         ctrl_change_mode(fbi);
 643                 }
 644         }
 645         omapfb_rqueue_unlock(fbdev);
 646 }
 647
 648 /*
 649  * Set new x,y offsets in the virtual display for the visible area and switch
 650  * to the new mode.
 651  */
 652 static int omapfb_pan_display(struct fb_var_screeninfo *var,
 653                                struct fb_info *fbi)
 654 {
 655         struct omapfb_plane_struct *plane = fbi->par;
 656         struct omapfb_device *fbdev = plane->fbdev;
 657         int r = 0;
 658
 659         omapfb_rqueue_lock(fbdev);
 660         if (var->xoffset != fbi->var.xoffset ||
 661             var->yoffset != fbi->var.yoffset) {
 662                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 663
 664                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 665                 new_var->xoffset = var->xoffset;
 666                 new_var->yoffset = var->yoffset;
 667                 if (set_fb_var(fbi, new_var))
 668                         r = -EINVAL;
 669                 else {
 670                         memcpy(&fbi->var, new_var, sizeof(*new_var));
 671                         ctrl_change_mode(fbi);
 672                 }
 673         }
 674         omapfb_rqueue_unlock(fbdev);
 675
 676         return r;
 677 }
 678
 679 /* Set mirror to vertical axis and switch to the new mode. */
 680 static int omapfb_mirror(struct fb_info *fbi, int mirror)
 681 {
 682         struct omapfb_plane_struct *plane = fbi->par;
 683         struct omapfb_device *fbdev = plane->fbdev;
 684         int r = 0;
 685
 686         omapfb_rqueue_lock(fbdev);
 687         mirror = mirror ? 1 : 0;
 688         if (cpu_is_omap15xx())
 689                 r = -EINVAL;
 690         else if (mirror != plane->info.mirror) {
 691                 plane->info.mirror = mirror;
 692                 r = ctrl_change_mode(fbi);
 693         }
 694         omapfb_rqueue_unlock(fbdev);
 695
 696         return r;
 697 }
 698
 699 /*
 700  * Check values in var, try to adjust them in case of out of bound values if
 701  * possible, or return error.
 702  */
 703 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 704 {
 705         struct omapfb_plane_struct *plane = fbi->par;
 706         struct omapfb_device *fbdev = plane->fbdev;
 707         int r;
 708
 709         omapfb_rqueue_lock(fbdev);
 710         if (fbdev->ctrl->sync != NULL)
 711                 fbdev->ctrl->sync();
 712         r = set_fb_var(fbi, var);
 713         omapfb_rqueue_unlock(fbdev);
 714
 715         return r;
 716 }
 717
 718 /*
 719  * Switch to a new mode. The parameters for it has been check already by
 720  * omapfb_check_var.
 721  */
 722 static int omapfb_set_par(struct fb_info *fbi)
 723 {
 724         struct omapfb_plane_struct *plane = fbi->par;
 725         struct omapfb_device *fbdev = plane->fbdev;
 726         int r = 0;
 727
 728         omapfb_rqueue_lock(fbdev);
 729         set_fb_fix(fbi, 0);
 730         r = ctrl_change_mode(fbi);
 731         omapfb_rqueue_unlock(fbdev);
 732
 733         return r;
 734 }
 735
 736 int omapfb_update_window_async(struct fb_info *fbi,
 737                                 struct omapfb_update_window *win,
 738                                 void (*callback)(void *),
 739                                 void *callback_data)
 740 {
 741         int xres, yres;
 742         struct omapfb_plane_struct *plane = fbi->par;
 743         struct omapfb_device *fbdev = plane->fbdev;
 744         struct fb_var_screeninfo *var = &fbi->var;
 745
 746         switch (var->rotate) {
 747         case 0:
 748         case 180:
 749                 xres = fbdev->panel->x_res;
 750                 yres = fbdev->panel->y_res;
 751                 break;
 752         case 90:
 753         case 270:
 754                 xres = fbdev->panel->y_res;
 755                 yres = fbdev->panel->x_res;
 756                 break;
 757         default:
 758                 return -EINVAL;
 759         }
 760
 761         if (win->x >= xres || win->y >= yres ||
 762             win->out_x > xres || win->out_y > yres)
 763                 return -EINVAL;
 764
 765         if (!fbdev->ctrl->update_window ||
 766             fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
 767                 return -ENODEV;
 768
 769         if (win->x + win->width > xres)
 770                 win->width = xres - win->x;
 771         if (win->y + win->height > yres)
 772                 win->height = yres - win->y;
 773         if (win->out_x + win->out_width > xres)
 774                 win->out_width = xres - win->out_x;
 775         if (win->out_y + win->out_height > yres)
 776                 win->out_height = yres - win->out_y;
 777         if (!win->width || !win->height || !win->out_width || !win->out_height)
 778                 return 0;
 779
 780         return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
 781 }
 782 EXPORT_SYMBOL(omapfb_update_window_async);
 783
 784 static int omapfb_update_win(struct fb_info *fbi,
 785                                 struct omapfb_update_window *win)
 786 {
 787         struct omapfb_plane_struct *plane = fbi->par;
 788         int ret;
 789
 790         omapfb_rqueue_lock(plane->fbdev);
 791         ret = omapfb_update_window_async(fbi, win, NULL, NULL);
 792         omapfb_rqueue_unlock(plane->fbdev);
 793
 794         return ret;
 795 }
 796
 797 static int omapfb_update_full_screen(struct fb_info *fbi)
 798 {
 799         struct omapfb_plane_struct *plane = fbi->par;
 800         struct omapfb_device *fbdev = plane->fbdev;
 801         struct omapfb_update_window win;
 802         int r;
 803
 804         if (!fbdev->ctrl->update_window ||
 805             fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
 806                 return -ENODEV;
 807
 808         win.x = 0;
 809         win.y = 0;
 810         win.width = fbi->var.xres;
 811         win.height = fbi->var.yres;
 812         win.out_x = 0;
 813         win.out_y = 0;
 814         win.out_width = fbi->var.xres;
 815         win.out_height = fbi->var.yres;
 816         win.format = 0;
 817
 818         omapfb_rqueue_lock(fbdev);
 819         r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
 820         omapfb_rqueue_unlock(fbdev);
 821
 822         return r;
 823 }
 824
 825 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 826 {
 827         struct omapfb_plane_struct *plane = fbi->par;
 828         struct omapfb_device *fbdev = plane->fbdev;
 829         struct lcd_panel *panel = fbdev->panel;
 830         struct omapfb_plane_info old_info;
 831         int r = 0;
 832
 833         if (pi->pos_x + pi->out_width > panel->x_res ||
 834             pi->pos_y + pi->out_height > panel->y_res)
 835                 return -EINVAL;
 836
 837         omapfb_rqueue_lock(fbdev);
 838         if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
 839                 /*
 840                  * This plane's memory was freed, can't enable it
 841                  * until it's reallocated.
 842                  */
 843                 r = -EINVAL;
 844                 goto out;
 845         }
 846         old_info = plane->info;
 847         plane->info = *pi;
 848         if (pi->enabled) {
 849                 r = ctrl_change_mode(fbi);
 850                 if (r < 0) {
 851                         plane->info = old_info;
 852                         goto out;
 853                 }
 854         }
 855         r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
 856         if (r < 0) {
 857                 plane->info = old_info;
 858                 goto out;
 859         }
 860 out:
 861         omapfb_rqueue_unlock(fbdev);
 862         return r;
 863 }
 864
 865 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 866 {
 867         struct omapfb_plane_struct *plane = fbi->par;
 868
 869         *pi = plane->info;
 870         return 0;
 871 }
 872
 873 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 874 {
 875         struct omapfb_plane_struct *plane = fbi->par;
 876         struct omapfb_device *fbdev = plane->fbdev;
 877         struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
 878         size_t size;
 879         int r = 0;
 880
 881         if (fbdev->ctrl->setup_mem == NULL)
 882                 return -ENODEV;
 883         if (mi->type > OMAPFB_MEMTYPE_MAX)
 884                 return -EINVAL;
 885
 886         size = PAGE_ALIGN(mi->size);
 887         omapfb_rqueue_lock(fbdev);
 888         if (plane->info.enabled) {
 889                 r = -EBUSY;
 890                 goto out;
 891         }
 892         if (rg->size != size || rg->type != mi->type) {
 893                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 894                 unsigned long old_size = rg->size;
 895                 u8            old_type = rg->type;
 896                 unsigned long paddr;
 897
 898                 rg->size = size;
 899                 rg->type = mi->type;
 900                 /*
 901                  * size == 0 is a special case, for which we
 902                  * don't check / adjust the screen parameters.
 903                  * This isn't a problem since the plane can't
 904                  * be reenabled unless its size is > 0.
 905                  */
 906                 if (old_size != size && size) {
 907                         if (size) {
 908                                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 909                                 r = set_fb_var(fbi, new_var);
 910                                 if (r < 0)
 911                                         goto out;
 912                         }
 913                 }
 914
 915                 if (fbdev->ctrl->sync)
 916                         fbdev->ctrl->sync();
 917                 r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
 918                 if (r < 0) {
 919                         /* Revert changes. */
 920                         rg->size = old_size;
 921                         rg->type = old_type;
 922                         goto out;
 923                 }
 924                 rg->paddr = paddr;
 925
 926                 if (old_size != size) {
 927                         if (size) {
 928                                 memcpy(&fbi->var, new_var, sizeof(fbi->var));
 929                                 set_fb_fix(fbi, 0);
 930                         } else {
 931                                 /*
 932                                  * Set these explicitly to indicate that the
 933                                  * plane memory is dealloce'd, the other
 934                                  * screen parameters in var / fix are invalid.
 935                                  */
 936                                 mutex_lock(&fbi->mm_lock);
 937                                 fbi->fix.smem_start = 0;
 938                                 fbi->fix.smem_len = 0;
 939                                 mutex_unlock(&fbi->mm_lock);
 940                         }
 941                 }
 942         }
 943 out:
 944         omapfb_rqueue_unlock(fbdev);
 945
 946         return r;
 947 }
 948
 949 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 950 {
 951         struct omapfb_plane_struct *plane = fbi->par;
 952         struct omapfb_device *fbdev = plane->fbdev;
 953         struct omapfb_mem_region *rg;
 954
 955         rg = &fbdev->mem_desc.region[plane->idx];
 956         memset(mi, 0, sizeof(*mi));
 957         mi->size = rg->size;
 958         mi->type = rg->type;
 959
 960         return 0;
 961 }
 962
 963 static int omapfb_set_color_key(struct omapfb_device *fbdev,
 964                                 struct omapfb_color_key *ck)
 965 {
 966         int r;
 967
 968         if (!fbdev->ctrl->set_color_key)
 969                 return -ENODEV;
 970
 971         omapfb_rqueue_lock(fbdev);
 972         r = fbdev->ctrl->set_color_key(ck);
 973         omapfb_rqueue_unlock(fbdev);
 974
 975         return r;
 976 }
 977
 978 static int omapfb_get_color_key(struct omapfb_device *fbdev,
 979                                 struct omapfb_color_key *ck)
 980 {
 981         int r;
 982
 983         if (!fbdev->ctrl->get_color_key)
 984                 return -ENODEV;
 985
 986         omapfb_rqueue_lock(fbdev);
 987         r = fbdev->ctrl->get_color_key(ck);
 988         omapfb_rqueue_unlock(fbdev);
 989
 990         return r;
 991 }
 992
 993 static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
 994 static int notifier_inited;
 995
 996 static void omapfb_init_notifier(void)
 997 {
 998         int i;
 999
1000         for (i = 0; i < OMAPFB_PLANE_NUM; i++)
1001                 BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
1002 }
1003
1004 int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
1005                                 omapfb_notifier_callback_t callback,
1006                                 void *callback_data)
1007 {
1008         int r;
1009
1010         if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
1011                 return -EINVAL;
1012
1013         if (!notifier_inited) {
1014                 omapfb_init_notifier();
1015                 notifier_inited = 1;
1016         }
1017
1018         omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
1019                                         unsigned long, void *))callback;
1020         omapfb_nb->data = callback_data;
1021         r = blocking_notifier_chain_register(
1022                                 &omapfb_client_list[omapfb_nb->plane_idx],
1023                                 &omapfb_nb->nb);
1024         if (r)
1025                 return r;
1026         if (omapfb_dev != NULL &&
1027             omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
1028                 omapfb_dev->ctrl->bind_client(omapfb_nb);
1029         }
1030
1031         return 0;
1032 }
1033 EXPORT_SYMBOL(omapfb_register_client);
1034
1035 int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
1036 {
1037         return blocking_notifier_chain_unregister(
1038                 &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
1039 }
1040 EXPORT_SYMBOL(omapfb_unregister_client);
1041
1042 void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
1043 {
1044         int i;
1045
1046         if (!notifier_inited)
1047                 /* no client registered yet */
1048                 return;
1049
1050         for (i = 0; i < OMAPFB_PLANE_NUM; i++)
1051                 blocking_notifier_call_chain(&omapfb_client_list[i], event,
1052                                     fbdev->fb_info[i]);
1053 }
1054 EXPORT_SYMBOL(omapfb_notify_clients);
1055
1056 static int omapfb_set_update_mode(struct omapfb_device *fbdev,
1057                                    enum omapfb_update_mode mode)
1058 {
1059         int r;
1060
1061         omapfb_rqueue_lock(fbdev);
1062         r = fbdev->ctrl->set_update_mode(mode);
1063         omapfb_rqueue_unlock(fbdev);
1064
1065         return r;
1066 }
1067
1068 static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
1069 {
1070         int r;
1071
1072         omapfb_rqueue_lock(fbdev);
1073         r = fbdev->ctrl->get_update_mode();
1074         omapfb_rqueue_unlock(fbdev);
1075
1076         return r;
1077 }
1078
1079 static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
1080                                      struct omapfb_caps *caps)
1081 {
1082         memset(caps, 0, sizeof(*caps));
1083         fbdev->ctrl->get_caps(plane, caps);
1084         caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
1085 }
1086
1087 /* For lcd testing */
1088 void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
1089 {
1090         omapfb_rqueue_lock(fbdev);
1091         *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
1092         if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
1093                 struct omapfb_update_window win;
1094
1095                 memset(&win, 0, sizeof(win));
1096                 win.width = 2;
1097                 win.height = 2;
1098                 win.out_width = 2;
1099                 win.out_height = 2;
1100                 fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
1101         }
1102         omapfb_rqueue_unlock(fbdev);
1103 }
1104 EXPORT_SYMBOL(omapfb_write_first_pixel);
1105
1106 /*
1107  * Ioctl interface. Part of the kernel mode frame buffer API is duplicated
1108  * here to be accessible by user mode code.
1109  */
1110 static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
1111                         unsigned long arg)
1112 {
1113         struct omapfb_plane_struct *plane = fbi->par;
1114         struct omapfb_device    *fbdev = plane->fbdev;
1115         struct fb_ops           *ops = fbi->fbops;
1116         union {
1117                 struct omapfb_update_window     update_window;
1118                 struct omapfb_plane_info        plane_info;
1119                 struct omapfb_mem_info          mem_info;
1120                 struct omapfb_color_key         color_key;
1121                 enum omapfb_update_mode         update_mode;
1122                 struct omapfb_caps              caps;
1123                 unsigned int            mirror;
1124                 int                     plane_out;
1125                 int                     enable_plane;
1126         } p;
1127         int r = 0;
1128
1129         BUG_ON(!ops);
1130         switch (cmd) {
1131         case OMAPFB_MIRROR:
1132                 if (get_user(p.mirror, (int __user *)arg))
1133                         r = -EFAULT;
1134                 else
1135                         omapfb_mirror(fbi, p.mirror);
1136                 break;
1137         case OMAPFB_SYNC_GFX:
1138                 omapfb_sync(fbi);
1139                 break;
1140         case OMAPFB_VSYNC:
1141                 break;
1142         case OMAPFB_SET_UPDATE_MODE:
1143                 if (get_user(p.update_mode, (int __user *)arg))
1144                         r = -EFAULT;
1145                 else
1146                         r = omapfb_set_update_mode(fbdev, p.update_mode);
1147                 break;
1148         case OMAPFB_GET_UPDATE_MODE:
1149                 p.update_mode = omapfb_get_update_mode(fbdev);
1150                 if (put_user(p.update_mode,
1151                                         (enum omapfb_update_mode __user *)arg))
1152                         r = -EFAULT;
1153                 break;
1154         case OMAPFB_UPDATE_WINDOW_OLD:
1155                 if (copy_from_user(&p.update_window, (void __user *)arg,
1156                                    sizeof(struct omapfb_update_window_old)))
1157                         r = -EFAULT;
1158                 else {
1159                         struct omapfb_update_window *u = &p.update_window;
1160                         u->out_x = u->x;
1161                         u->out_y = u->y;
1162                         u->out_width = u->width;
1163                         u->out_height = u->height;
1164                         memset(u->reserved, 0, sizeof(u->reserved));
1165                         r = omapfb_update_win(fbi, u);
1166                 }
1167                 break;
1168         case OMAPFB_UPDATE_WINDOW:
1169                 if (copy_from_user(&p.update_window, (void __user *)arg,
1170                                    sizeof(p.update_window)))
1171                         r = -EFAULT;
1172                 else
1173                         r = omapfb_update_win(fbi, &p.update_window);
1174                 break;
1175         case OMAPFB_SETUP_PLANE:
1176                 if (copy_from_user(&p.plane_info, (void __user *)arg,
1177                                    sizeof(p.plane_info)))
1178                         r = -EFAULT;
1179                 else
1180                         r = omapfb_setup_plane(fbi, &p.plane_info);
1181                 break;
1182         case OMAPFB_QUERY_PLANE:
1183                 if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
1184                         break;
1185                 if (copy_to_user((void __user *)arg, &p.plane_info,
1186                                    sizeof(p.plane_info)))
1187                         r = -EFAULT;
1188                 break;
1189         case OMAPFB_SETUP_MEM:
1190                 if (copy_from_user(&p.mem_info, (void __user *)arg,
1191                                    sizeof(p.mem_info)))
1192                         r = -EFAULT;
1193                 else
1194                         r = omapfb_setup_mem(fbi, &p.mem_info);
1195                 break;
1196         case OMAPFB_QUERY_MEM:
1197                 if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
1198                         break;
1199                 if (copy_to_user((void __user *)arg, &p.mem_info,
1200                                    sizeof(p.mem_info)))
1201                         r = -EFAULT;
1202                 break;
1203         case OMAPFB_SET_COLOR_KEY:
1204                 if (copy_from_user(&p.color_key, (void __user *)arg,
1205                                    sizeof(p.color_key)))
1206                         r = -EFAULT;
1207                 else
1208                         r = omapfb_set_color_key(fbdev, &p.color_key);
1209                 break;
1210         case OMAPFB_GET_COLOR_KEY:
1211                 if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
1212                         break;
1213                 if (copy_to_user((void __user *)arg, &p.color_key,
1214                                  sizeof(p.color_key)))
1215                         r = -EFAULT;
1216                 break;
1217         case OMAPFB_GET_CAPS:
1218                 omapfb_get_caps(fbdev, plane->idx, &p.caps);
1219                 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
1220                         r = -EFAULT;
1221                 break;
1222         case OMAPFB_LCD_TEST:
1223                 {
1224                         int test_num;
1225
1226                         if (get_user(test_num, (int __user *)arg)) {
1227                                 r = -EFAULT;
1228                                 break;
1229                         }
1230                         if (!fbdev->panel->run_test) {
1231                                 r = -EINVAL;
1232                                 break;
1233                         }
1234                         r = fbdev->panel->run_test(fbdev->panel, test_num);
1235                         break;
1236                 }
1237         case OMAPFB_CTRL_TEST:
1238                 {
1239                         int test_num;
1240
1241                         if (get_user(test_num, (int __user *)arg)) {
1242                                 r = -EFAULT;
1243                                 break;
1244                         }
1245                         if (!fbdev->ctrl->run_test) {
1246                                 r = -EINVAL;
1247                                 break;
1248                         }
1249                         r = fbdev->ctrl->run_test(test_num);
1250                         break;
1251                 }
1252         default:
1253                 r = -EINVAL;
1254         }
1255
1256         return r;
1257 }
1258
1259 static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1260 {
1261         struct omapfb_plane_struct *plane = info->par;
1262         struct omapfb_device *fbdev = plane->fbdev;
1263         int r;
1264
1265         omapfb_rqueue_lock(fbdev);
1266         r = fbdev->ctrl->mmap(info, vma);
1267         omapfb_rqueue_unlock(fbdev);
1268
1269         return r;
1270 }
1271
1272 /*
1273  * Callback table for the frame buffer framework. Some of these pointers
1274  * will be changed according to the current setting of fb_info->accel_flags.
1275  */
1276 static struct fb_ops omapfb_ops = {
1277         .owner          = THIS_MODULE,
1278         .fb_open        = omapfb_open,
1279         .fb_release     = omapfb_release,
1280         .fb_setcolreg   = omapfb_setcolreg,
1281         .fb_setcmap     = omapfb_setcmap,
1282         .fb_fillrect    = cfb_fillrect,
1283         .fb_copyarea    = cfb_copyarea,
1284         .fb_imageblit   = cfb_imageblit,
1285         .fb_blank       = omapfb_blank,
1286         .fb_ioctl       = omapfb_ioctl,
1287         .fb_check_var   = omapfb_check_var,
1288         .fb_set_par     = omapfb_set_par,
1289         .fb_rotate      = omapfb_rotate,
1290         .fb_pan_display = omapfb_pan_display,
1291 };
1292
1293 /*
1294  * ---------------------------------------------------------------------------
1295  * Sysfs interface
1296  * ---------------------------------------------------------------------------
1297  */
1298 /* omapfbX sysfs entries */
1299 static ssize_t omapfb_show_caps_num(struct device *dev,
1300                                     struct device_attribute *attr, char *buf)
1301 {
1302         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1303         int plane;
1304         size_t size;
1305         struct omapfb_caps caps;
1306
1307         plane = 0;
1308         size = 0;
1309         while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1310                 omapfb_get_caps(fbdev, plane, &caps);
1311                 size += snprintf(&buf[size], PAGE_SIZE - size,
1312                         "plane#%d %#010x %#010x %#010x\n",
1313                         plane, caps.ctrl, caps.plane_color, caps.wnd_color);
1314                 plane++;
1315         }
1316         return size;
1317 }
1318
1319 static ssize_t omapfb_show_caps_text(struct device *dev,
1320                                      struct device_attribute *attr, char *buf)
1321 {
1322         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1323         int i;
1324         struct omapfb_caps caps;
1325         int plane;
1326         size_t size;
1327
1328         plane = 0;
1329         size = 0;
1330         while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1331                 omapfb_get_caps(fbdev, plane, &caps);
1332                 size += snprintf(&buf[size], PAGE_SIZE - size,
1333                                  "plane#%d:\n", plane);
1334                 for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
1335                      size < PAGE_SIZE; i++) {
1336                         if (ctrl_caps[i].flag & caps.ctrl)
1337                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1338                                         " %s\n", ctrl_caps[i].name);
1339                 }
1340                 size += snprintf(&buf[size], PAGE_SIZE - size,
1341                                  " plane colors:\n");
1342                 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1343                      size < PAGE_SIZE; i++) {
1344                         if (color_caps[i].flag & caps.plane_color)
1345                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1346                                         "  %s\n", color_caps[i].name);
1347                 }
1348                 size += snprintf(&buf[size], PAGE_SIZE - size,
1349                                  " window colors:\n");
1350                 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1351                      size < PAGE_SIZE; i++) {
1352                         if (color_caps[i].flag & caps.wnd_color)
1353                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1354                                         "  %s\n", color_caps[i].name);
1355                 }
1356
1357                 plane++;
1358         }
1359         return size;
1360 }
1361
1362 static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
1363 static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
1364
1365 /* panel sysfs entries */
1366 static ssize_t omapfb_show_panel_name(struct device *dev,
1367                                       struct device_attribute *attr, char *buf)
1368 {
1369         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1370
1371         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
1372 }
1373
1374 static ssize_t omapfb_show_bklight_level(struct device *dev,
1375                                          struct device_attribute *attr,
1376                                          char *buf)
1377 {
1378         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1379         int r;
1380
1381         if (fbdev->panel->get_bklight_level) {
1382                 r = snprintf(buf, PAGE_SIZE, "%d\n",
1383                              fbdev->panel->get_bklight_level(fbdev->panel));
1384         } else
1385                 r = -ENODEV;
1386         return r;
1387 }
1388
1389 static ssize_t omapfb_store_bklight_level(struct device *dev,
1390                                           struct device_attribute *attr,
1391                                           const char *buf, size_t size)
1392 {
1393         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1394         int r;
1395
1396         if (fbdev->panel->set_bklight_level) {
1397                 unsigned int level;
1398
1399                 if (sscanf(buf, "%10d", &level) == 1) {
1400                         r = fbdev->panel->set_bklight_level(fbdev->panel,
1401                                                             level);
1402                 } else
1403                         r = -EINVAL;
1404         } else
1405                 r = -ENODEV;
1406         return r ? r : size;
1407 }
1408
1409 static ssize_t omapfb_show_bklight_max(struct device *dev,
1410                                        struct device_attribute *attr, char *buf)
1411 {
1412         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1413         int r;
1414
1415         if (fbdev->panel->get_bklight_level) {
1416                 r = snprintf(buf, PAGE_SIZE, "%d\n",
1417                              fbdev->panel->get_bklight_max(fbdev->panel));
1418         } else
1419                 r = -ENODEV;
1420         return r;
1421 }
1422
1423 static struct device_attribute dev_attr_panel_name =
1424         __ATTR(name, 0444, omapfb_show_panel_name, NULL);
1425 static DEVICE_ATTR(backlight_level, 0664,
1426                    omapfb_show_bklight_level, omapfb_store_bklight_level);
1427 static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
1428
1429 static struct attribute *panel_attrs[] = {
1430         &dev_attr_panel_name.attr,
1431         &dev_attr_backlight_level.attr,
1432         &dev_attr_backlight_max.attr,
1433         NULL,
1434 };
1435
1436 static struct attribute_group panel_attr_grp = {
1437         .name  = "panel",
1438         .attrs = panel_attrs,
1439 };
1440
1441 /* ctrl sysfs entries */
1442 static ssize_t omapfb_show_ctrl_name(struct device *dev,
1443                                      struct device_attribute *attr, char *buf)
1444 {
1445         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1446
1447         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
1448 }
1449
1450 static struct device_attribute dev_attr_ctrl_name =
1451         __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
1452
1453 static struct attribute *ctrl_attrs[] = {
1454         &dev_attr_ctrl_name.attr,
1455         NULL,
1456 };
1457
1458 static struct attribute_group ctrl_attr_grp = {
1459         .name  = "ctrl",
1460         .attrs = ctrl_attrs,
1461 };
1462
1463 static int omapfb_register_sysfs(struct omapfb_device *fbdev)
1464 {
1465         int r;
1466
1467         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
1468                 goto fail0;
1469
1470         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
1471                 goto fail1;
1472
1473         if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
1474                 goto fail2;
1475
1476         if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
1477                 goto fail3;
1478
1479         return 0;
1480 fail3:
1481         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1482 fail2:
1483         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1484 fail1:
1485         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1486 fail0:
1487         dev_err(fbdev->dev, "unable to register sysfs interface\n");
1488         return r;
1489 }
1490
1491 static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
1492 {
1493         sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
1494         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1495         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1496         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1497 }
1498
1499 /*
1500  * ---------------------------------------------------------------------------
1501  * LDM callbacks
1502  * ---------------------------------------------------------------------------
1503  */
1504 /* Initialize system fb_info object and set the default video mode.
1505  * The frame buffer memory already allocated by lcddma_init
1506  */
1507 static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
1508 {
1509         struct fb_var_screeninfo        *var = &info->var;
1510         struct fb_fix_screeninfo        *fix = &info->fix;
1511         int                             r = 0;
1512
1513         info->fbops = &omapfb_ops;
1514         info->flags = FBINFO_FLAG_DEFAULT;
1515
1516         strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
1517
1518         info->pseudo_palette = fbdev->pseudo_palette;
1519
1520         var->accel_flags  = def_accel ? FB_ACCELF_TEXT : 0;
1521         var->xres = def_vxres;
1522         var->yres = def_vyres;
1523         var->xres_virtual = def_vxres;
1524         var->yres_virtual = def_vyres;
1525         var->rotate       = def_rotate;
1526         var->bits_per_pixel = fbdev->panel->bpp;
1527
1528         set_fb_var(info, var);
1529         set_fb_fix(info, 1);
1530
1531         r = fb_alloc_cmap(&info->cmap, 16, 0);
1532         if (r != 0)
1533                 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1534
1535         return r;
1536 }
1537
1538 /* Release the fb_info object */
1539 static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
1540 {
1541         fb_dealloc_cmap(&fbi->cmap);
1542 }
1543
1544 static void planes_cleanup(struct omapfb_device *fbdev)
1545 {
1546         int i;
1547
1548         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1549                 if (fbdev->fb_info[i] == NULL)
1550                         break;
1551                 fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
1552                 framebuffer_release(fbdev->fb_info[i]);
1553         }
1554 }
1555
1556 static int planes_init(struct omapfb_device *fbdev)
1557 {
1558         struct fb_info *fbi;
1559         int i;
1560         int r;
1561
1562         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1563                 struct omapfb_plane_struct *plane;
1564                 fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
1565                                         fbdev->dev);
1566                 if (fbi == NULL) {
1567                         dev_err(fbdev->dev,
1568                                 "unable to allocate memory for plane info\n");
1569                         planes_cleanup(fbdev);
1570                         return -ENOMEM;
1571                 }
1572                 plane = fbi->par;
1573                 plane->idx = i;
1574                 plane->fbdev = fbdev;
1575                 plane->info.mirror = def_mirror;
1576                 fbdev->fb_info[i] = fbi;
1577
1578                 if ((r = fbinfo_init(fbdev, fbi)) < 0) {
1579                         framebuffer_release(fbi);
1580                         planes_cleanup(fbdev);
1581                         return r;
1582                 }
1583                 plane->info.out_width = fbi->var.xres;
1584                 plane->info.out_height = fbi->var.yres;
1585         }
1586         return 0;
1587 }
1588
1589 /*
1590  * Free driver resources. Can be called to rollback an aborted initialization
1591  * sequence.
1592  */
1593 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
1594 {
1595         int i;
1596
1597         switch (state) {
1598         case OMAPFB_ACTIVE:
1599                 for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
1600                         unregister_framebuffer(fbdev->fb_info[i]);
1601         case 7:
1602                 omapfb_unregister_sysfs(fbdev);
1603         case 6:
1604                 fbdev->panel->disable(fbdev->panel);
1605         case 5:
1606                 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1607         case 4:
1608                 planes_cleanup(fbdev);
1609         case 3:
1610                 ctrl_cleanup(fbdev);
1611         case 2:
1612                 fbdev->panel->cleanup(fbdev->panel);
1613         case 1:
1614                 dev_set_drvdata(fbdev->dev, NULL);
1615                 kfree(fbdev);
1616         case 0:
1617                 /* nothing to free */
1618                 break;
1619         default:
1620                 BUG();
1621         }
1622 }
1623
1624 static int omapfb_find_ctrl(struct omapfb_device *fbdev)
1625 {
1626         struct omapfb_platform_data *conf;
1627         char name[17];
1628         int i;
1629
1630         conf = fbdev->dev->platform_data;
1631
1632         fbdev->ctrl = NULL;
1633
1634         strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
1635         name[sizeof(name) - 1] = '\0';
1636
1637         if (strcmp(name, "internal") == 0) {
1638                 fbdev->ctrl = fbdev->int_ctrl;
1639                 return 0;
1640         }
1641
1642         for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
1643                 dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
1644                 if (strcmp(ctrls[i]->name, name) == 0) {
1645                         fbdev->ctrl = ctrls[i];
1646                         break;
1647                 }
1648         }
1649
1650         if (fbdev->ctrl == NULL) {
1651                 dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
1652                 return -1;
1653         }
1654
1655         return 0;
1656 }
1657
1658 static void check_required_callbacks(struct omapfb_device *fbdev)
1659 {
1660 #define _C(x) (fbdev->ctrl->x != NULL)
1661 #define _P(x) (fbdev->panel->x != NULL)
1662         BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
1663         BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
1664                  _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
1665                  _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
1666                  _P(get_caps)));
1667 #undef _P
1668 #undef _C
1669 }
1670
1671 /*
1672  * Called by LDM binding to probe and attach a new device.
1673  * Initialization sequence:
1674  *   1. allocate system omapfb_device structure
1675  *   2. select controller type according to platform configuration
1676  *      init LCD panel
1677  *   3. init LCD controller and LCD DMA
1678  *   4. init system fb_info structure for all planes
1679  *   5. setup video mode for first plane and enable it
1680  *   6. enable LCD panel
1681  *   7. register sysfs attributes
1682  *   OMAPFB_ACTIVE: register system fb_info structure for all planes
1683  */
1684 static int omapfb_do_probe(struct platform_device *pdev,
1685                                 struct lcd_panel *panel)
1686 {
1687         struct omapfb_device    *fbdev = NULL;
1688         int                     init_state;
1689         unsigned long           phz, hhz, vhz;
1690         unsigned long           vram;
1691         int                     i;
1692         int                     r = 0;
1693
1694         init_state = 0;
1695
1696         if (pdev->num_resources != 0) {
1697                 dev_err(&pdev->dev, "probed for an unknown device\n");
1698                 r = -ENODEV;
1699                 goto cleanup;
1700         }
1701
1702         if (pdev->dev.platform_data == NULL) {
1703                 dev_err(&pdev->dev, "missing platform data\n");
1704                 r = -ENOENT;
1705                 goto cleanup;
1706         }
1707
1708         fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
1709         if (fbdev == NULL) {
1710                 dev_err(&pdev->dev,
1711                         "unable to allocate memory for device info\n");
1712                 r = -ENOMEM;
1713                 goto cleanup;
1714         }
1715         init_state++;
1716
1717         fbdev->dev = &pdev->dev;
1718         fbdev->panel = panel;
1719         fbdev->dssdev = &omapdss_device;
1720         platform_set_drvdata(pdev, fbdev);
1721
1722         mutex_init(&fbdev->rqueue_mutex);
1723
1724 #ifdef CONFIG_ARCH_OMAP1
1725         fbdev->int_ctrl = &omap1_int_ctrl;
1726 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1727         fbdev->ext_if = &omap1_ext_if;
1728 #endif
1729 #else   /* OMAP2 */
1730         fbdev->int_ctrl = &omap2_int_ctrl;
1731 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1732         fbdev->ext_if = &omap2_ext_if;
1733 #endif
1734 #endif
1735         if (omapfb_find_ctrl(fbdev) < 0) {
1736                 dev_err(fbdev->dev,
1737                         "LCD controller not found, board not supported\n");
1738                 r = -ENODEV;
1739                 goto cleanup;
1740         }
1741
1742         r = fbdev->panel->init(fbdev->panel, fbdev);
1743         if (r)
1744                 goto cleanup;
1745
1746         pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
1747
1748         def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
1749         def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
1750
1751         init_state++;
1752
1753         r = ctrl_init(fbdev);
1754         if (r)
1755                 goto cleanup;
1756         if (fbdev->ctrl->mmap != NULL)
1757                 omapfb_ops.fb_mmap = omapfb_mmap;
1758         init_state++;
1759
1760         check_required_callbacks(fbdev);
1761
1762         r = planes_init(fbdev);
1763         if (r)
1764                 goto cleanup;
1765         init_state++;
1766
1767 #ifdef CONFIG_FB_OMAP_DMA_TUNE
1768         /* Set DMA priority for EMIFF access to highest */
1769         if (cpu_class_is_omap1())
1770                 omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
1771 #endif
1772
1773         r = ctrl_change_mode(fbdev->fb_info[0]);
1774         if (r) {
1775                 dev_err(fbdev->dev, "mode setting failed\n");
1776                 goto cleanup;
1777         }
1778
1779         /* GFX plane is enabled by default */
1780         r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
1781         if (r)
1782                 goto cleanup;
1783
1784         omapfb_set_update_mode(fbdev, manual_update ?
1785                                    OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
1786         init_state++;
1787
1788         r = fbdev->panel->enable(fbdev->panel);
1789         if (r)
1790                 goto cleanup;
1791         init_state++;
1792
1793         r = omapfb_register_sysfs(fbdev);
1794         if (r)
1795                 goto cleanup;
1796         init_state++;
1797
1798         vram = 0;
1799         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1800                 r = register_framebuffer(fbdev->fb_info[i]);
1801                 if (r != 0) {
1802                         dev_err(fbdev->dev,
1803                                 "registering framebuffer %d failed\n", i);
1804                         goto cleanup;
1805                 }
1806                 vram += fbdev->mem_desc.region[i].size;
1807         }
1808
1809         fbdev->state = OMAPFB_ACTIVE;
1810
1811         panel = fbdev->panel;
1812         phz = panel->pixel_clock * 1000;
1813         hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
1814         vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
1815
1816         omapfb_dev = fbdev;
1817
1818         pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
1819                         vram, fbdev->mem_desc.region_cnt);
1820         pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
1821                         "vfreq %lu.%lu Hz\n",
1822                         phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
1823
1824         return 0;
1825
1826 cleanup:
1827         omapfb_free_resources(fbdev, init_state);
1828
1829         return r;
1830 }
1831
1832 static int omapfb_probe(struct platform_device *pdev)
1833 {
1834         int r;
1835
1836         BUG_ON(fbdev_pdev != NULL);
1837
1838         r = platform_device_register(&omapdss_device);
1839         if (r) {
1840                 dev_err(&pdev->dev, "can't register omapdss device\n");
1841                 return r;
1842         }
1843
1844         /* Delay actual initialization until the LCD is registered */
1845         fbdev_pdev = pdev;
1846         if (fbdev_panel != NULL)
1847                 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1848         return 0;
1849 }
1850
1851 void omapfb_register_panel(struct lcd_panel *panel)
1852 {
1853         BUG_ON(fbdev_panel != NULL);
1854
1855         fbdev_panel = panel;
1856         if (fbdev_pdev != NULL)
1857                 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1858 }
1859
1860 /* Called when the device is being detached from the driver */
1861 static int omapfb_remove(struct platform_device *pdev)
1862 {
1863         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1864         enum omapfb_state saved_state = fbdev->state;
1865
1866         /* FIXME: wait till completion of pending events */
1867
1868         fbdev->state = OMAPFB_DISABLED;
1869         omapfb_free_resources(fbdev, saved_state);
1870
1871         platform_device_unregister(&omapdss_device);
1872         fbdev->dssdev = NULL;
1873
1874         return 0;
1875 }
1876
1877 /* PM suspend */
1878 static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
1879 {
1880         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1881
1882         if (fbdev != NULL)
1883                 omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
1884         return 0;
1885 }
1886
1887 /* PM resume */
1888 static int omapfb_resume(struct platform_device *pdev)
1889 {
1890         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1891
1892         if (fbdev != NULL)
1893                 omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
1894         return 0;
1895 }
1896
1897 static struct platform_driver omapfb_driver = {
1898         .probe          = omapfb_probe,
1899         .remove         = omapfb_remove,
1900         .suspend        = omapfb_suspend,
1901         .resume         = omapfb_resume,
1902         .driver         = {
1903                 .name   = MODULE_NAME,
1904                 .owner  = THIS_MODULE,
1905         },
1906 };
1907
1908 #ifndef MODULE
1909
1910 /* Process kernel command line parameters */
1911 static int __init omapfb_setup(char *options)
1912 {
1913         char *this_opt = NULL;
1914         int r = 0;
1915
1916         pr_debug("omapfb: options %s\n", options);
1917
1918         if (!options || !*options)
1919                 return 0;
1920
1921         while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1922                 if (!strncmp(this_opt, "accel", 5))
1923                         def_accel = 1;
1924                 else if (!strncmp(this_opt, "vram:", 5)) {
1925                         char *suffix;
1926                         unsigned long vram;
1927                         vram = (simple_strtoul(this_opt + 5, &suffix, 0));
1928                         switch (suffix[0]) {
1929                         case '\0':
1930                                 break;
1931                         case 'm':
1932                         case 'M':
1933                                 vram *= 1024;
1934                                 /* Fall through */
1935                         case 'k':
1936                         case 'K':
1937                                 vram *= 1024;
1938                                 break;
1939                         default:
1940                                 pr_debug("omapfb: invalid vram suffix %c\n",
1941                                          suffix[0]);
1942                                 r = -1;
1943                         }
1944                         def_vram[def_vram_cnt++] = vram;
1945                 }
1946                 else if (!strncmp(this_opt, "vxres:", 6))
1947                         def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
1948                 else if (!strncmp(this_opt, "vyres:", 6))
1949                         def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
1950                 else if (!strncmp(this_opt, "rotate:", 7))
1951                         def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
1952                 else if (!strncmp(this_opt, "mirror:", 7))
1953                         def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
1954                 else if (!strncmp(this_opt, "manual_update", 13))
1955                         manual_update = 1;
1956                 else {
1957                         pr_debug("omapfb: invalid option\n");
1958                         r = -1;
1959                 }
1960         }
1961
1962         return r;
1963 }
1964
1965 #endif
1966
1967 /* Register both the driver and the device */
1968 static int __init omapfb_init(void)
1969 {
1970 #ifndef MODULE
1971         char *option;
1972
1973         if (fb_get_options("omapfb", &option))
1974                 return -ENODEV;
1975         omapfb_setup(option);
1976 #endif
1977         /* Register the driver with LDM */
1978         if (platform_driver_register(&omapfb_driver)) {
1979                 pr_debug("failed to register omapfb driver\n");
1980                 return -ENODEV;
1981         }
1982
1983         return 0;
1984 }
1985
1986 static void __exit omapfb_cleanup(void)
1987 {
1988         platform_driver_unregister(&omapfb_driver);
1989 }
1990
1991 module_param_named(accel, def_accel, uint, 0664);
1992 module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
1993 module_param_named(vxres, def_vxres, long, 0664);
1994 module_param_named(vyres, def_vyres, long, 0664);
1995 module_param_named(rotate, def_rotate, uint, 0664);
1996 module_param_named(mirror, def_mirror, uint, 0664);
1997 module_param_named(manual_update, manual_update, bool, 0664);
1998
1999 module_init(omapfb_init);
2000 module_exit(omapfb_cleanup);
2001
2002 MODULE_DESCRIPTION("TI OMAP framebuffer driver");
2003 MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
2004 MODULE_LICENSE("GPL");