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