drivers/video/omap/omapfb_main.c

   1 /*
   2  * Framebuffer driver for TI OMAP boards
   3  *
   4  * Copyright (C) 2004 Nokia Corporation
   5  * Author: Imre Deak <imre.deak@nokia.com>
   6  *
   7  * Acknowledgements:
   8  *   Alex McMains <aam@ridgerun.com>       - Original driver
   9  *   Juha Yrjola <juha.yrjola@nokia.com>   - Original driver and improvements
  10  *   Dirk Behme <dirk.behme@de.bosch.com>  - changes for 2.6 kernel API
  11  *   Texas Instruments                     - H3 support
  12  *
  13  * This program is free software; you can redistribute it and/or modify it
  14  * under the terms of the GNU General Public License as published by the
  15  * Free Software Foundation; either version 2 of the License, or (at your
  16  * option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful, but
  19  * WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21  * General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License along
  24  * with this program; if not, write to the Free Software Foundation, Inc.,
  25  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  26  */
  27 #include <linux/platform_device.h>
  28 #include <linux/mm.h>
  29 #include <linux/uaccess.h>
  30
  31 #include <plat/dma.h>
  32
  33 #include "omapfb.h"
  34 #include "lcdc.h"
  35 #include "dispc.h"
  36
  37 #define MODULE_NAME     "omapfb"
  38
  39 static unsigned int     def_accel;
  40 static unsigned long    def_vram[OMAPFB_PLANE_NUM];
  41 static unsigned int     def_vram_cnt;
  42 static unsigned long    def_vxres;
  43 static unsigned long    def_vyres;
  44 static unsigned int     def_rotate;
  45 static unsigned int     def_mirror;
  46
  47 #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
  48 static int              manual_update = 1;
  49 #else
  50 static int              manual_update;
  51 #endif
  52
  53 static struct platform_device   *fbdev_pdev;
  54 static struct lcd_panel         *fbdev_panel;
  55 static struct omapfb_device     *omapfb_dev;
  56
  57 struct caps_table_struct {
  58         unsigned long flag;
  59         const char *name;
  60 };
  61
  62 static struct caps_table_struct ctrl_caps[] = {
  63         { OMAPFB_CAPS_MANUAL_UPDATE,  "manual update" },
  64         { OMAPFB_CAPS_TEARSYNC,       "tearing synchronization" },
  65         { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
  66         { OMAPFB_CAPS_PLANE_SCALE,    "scale plane" },
  67         { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
  68         { OMAPFB_CAPS_WINDOW_SCALE,   "scale window" },
  69         { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
  70         { OMAPFB_CAPS_WINDOW_ROTATE,  "rotate window" },
  71         { OMAPFB_CAPS_SET_BACKLIGHT,  "backlight setting" },
  72 };
  73
  74 static struct caps_table_struct color_caps[] = {
  75         { 1 << OMAPFB_COLOR_RGB565,     "RGB565", },
  76         { 1 << OMAPFB_COLOR_YUV422,     "YUV422", },
  77         { 1 << OMAPFB_COLOR_YUV420,     "YUV420", },
  78         { 1 << OMAPFB_COLOR_CLUT_8BPP,  "CLUT8", },
  79         { 1 << OMAPFB_COLOR_CLUT_4BPP,  "CLUT4", },
  80         { 1 << OMAPFB_COLOR_CLUT_2BPP,  "CLUT2", },
  81         { 1 << OMAPFB_COLOR_CLUT_1BPP,  "CLUT1", },
  82         { 1 << OMAPFB_COLOR_RGB444,     "RGB444", },
  83         { 1 << OMAPFB_COLOR_YUY422,     "YUY422", },
  84 };
  85
  86 static void omapdss_release(struct device *dev)
  87 {
  88 }
  89
  90 /* dummy device for clocks */
  91 static struct platform_device omapdss_device = {
  92         .name           = "omapdss",
  93         .id             = -1,
  94         .dev            = {
  95                 .release = omapdss_release,
  96         },
  97 };
  98
  99 /*
 100  * ---------------------------------------------------------------------------
 101  * LCD panel
 102  * ---------------------------------------------------------------------------
 103  */
 104 extern struct lcd_ctrl hwa742_ctrl;
 105 extern struct lcd_ctrl blizzard_ctrl;
 106
 107 static const struct lcd_ctrl *ctrls[] = {
 108 #ifdef CONFIG_ARCH_OMAP1
 109         &omap1_int_ctrl,
 110 #else
 111         &omap2_int_ctrl,
 112 #endif
 113
 114 #ifdef CONFIG_FB_OMAP_LCDC_HWA742
 115         &hwa742_ctrl,
 116 #endif
 117 #ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD
 118         &blizzard_ctrl,
 119 #endif
 120 };
 121
 122 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
 123 #ifdef CONFIG_ARCH_OMAP1
 124 extern struct lcd_ctrl_extif omap1_ext_if;
 125 #else
 126 extern struct lcd_ctrl_extif omap2_ext_if;
 127 #endif
 128 #endif
 129
 130 static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
 131 {
 132         mutex_lock(&fbdev->rqueue_mutex);
 133 }
 134
 135 static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
 136 {
 137         mutex_unlock(&fbdev->rqueue_mutex);
 138 }
 139
 140 /*
 141  * ---------------------------------------------------------------------------
 142  * LCD controller and LCD DMA
 143  * ---------------------------------------------------------------------------
 144  */
 145 /* Lookup table to map elem size to elem type. */
 146 static const int dma_elem_type[] = {
 147         0,
 148         OMAP_DMA_DATA_TYPE_S8,
 149         OMAP_DMA_DATA_TYPE_S16,
 150         0,
 151         OMAP_DMA_DATA_TYPE_S32,
 152 };
 153
 154 /*
 155  * Allocate resources needed for LCD controller and LCD DMA operations. Video
 156  * memory is allocated from system memory according to the virtual display
 157  * size, except if a bigger memory size is specified explicitly as a kernel
 158  * parameter.
 159  */
 160 static int ctrl_init(struct omapfb_device *fbdev)
 161 {
 162         int r;
 163         int i;
 164
 165         /* kernel/module vram parameters override boot tags/board config */
 166         if (def_vram_cnt) {
 167                 for (i = 0; i < def_vram_cnt; i++)
 168                         fbdev->mem_desc.region[i].size =
 169                                 PAGE_ALIGN(def_vram[i]);
 170                 fbdev->mem_desc.region_cnt = i;
 171         } else {
 172                 struct omapfb_platform_data *conf;
 173
 174                 conf = fbdev->dev->platform_data;
 175                 fbdev->mem_desc = conf->mem_desc;
 176         }
 177
 178         if (!fbdev->mem_desc.region_cnt) {
 179                 struct lcd_panel *panel = fbdev->panel;
 180                 int def_size;
 181                 int bpp = panel->bpp;
 182
 183                 /* 12 bpp is packed in 16 bits */
 184                 if (bpp == 12)
 185                         bpp = 16;
 186                 def_size = def_vxres * def_vyres * bpp / 8;
 187                 fbdev->mem_desc.region_cnt = 1;
 188                 fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
 189         }
 190         r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
 191         if (r < 0) {
 192                 dev_err(fbdev->dev, "controller initialization failed (%d)\n",
 193                         r);
 194                 return r;
 195         }
 196
 197 #ifdef DEBUG
 198         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
 199                 dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
 200                          i,
 201                          fbdev->mem_desc.region[i].paddr,
 202                          fbdev->mem_desc.region[i].vaddr,
 203                          fbdev->mem_desc.region[i].size);
 204         }
 205 #endif
 206         return 0;
 207 }
 208
 209 static void ctrl_cleanup(struct omapfb_device *fbdev)
 210 {
 211         fbdev->ctrl->cleanup();
 212 }
 213
 214 /* Must be called with fbdev->rqueue_mutex held. */
 215 static int ctrl_change_mode(struct fb_info *fbi)
 216 {
 217         int r;
 218         unsigned long offset;
 219         struct omapfb_plane_struct *plane = fbi->par;
 220         struct omapfb_device *fbdev = plane->fbdev;
 221         struct fb_var_screeninfo *var = &fbi->var;
 222
 223         offset = var->yoffset * fbi->fix.line_length +
 224                  var->xoffset * var->bits_per_pixel / 8;
 225
 226         if (fbdev->ctrl->sync)
 227                 fbdev->ctrl->sync();
 228         r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
 229                                  offset, var->xres_virtual,
 230                                  plane->info.pos_x, plane->info.pos_y,
 231                                  var->xres, var->yres, plane->color_mode);
 232         if (r < 0)
 233                 return r;
 234
 235         if (fbdev->ctrl->set_rotate != NULL) {
 236                 r = fbdev->ctrl->set_rotate(var->rotate);
 237                 if (r < 0)
 238                         return r;
 239         }
 240
 241         if (fbdev->ctrl->set_scale != NULL)
 242                 r = fbdev->ctrl->set_scale(plane->idx,
 243                                    var->xres, var->yres,
 244                                    plane->info.out_width,
 245                                    plane->info.out_height);
 246
 247         return r;
 248 }
 249
 250 /*
 251  * ---------------------------------------------------------------------------
 252  * fbdev framework callbacks and the ioctl interface
 253  * ---------------------------------------------------------------------------
 254  */
 255 /* Called each time the omapfb device is opened */
 256 static int omapfb_open(struct fb_info *info, int user)
 257 {
 258         return 0;
 259 }
 260
 261 static void omapfb_sync(struct fb_info *info);
 262
 263 /* Called when the omapfb device is closed. We make sure that any pending
 264  * gfx DMA operations are ended, before we return. */
 265 static int omapfb_release(struct fb_info *info, int user)
 266 {
 267         omapfb_sync(info);
 268         return 0;
 269 }
 270
 271 /* Store a single color palette entry into a pseudo palette or the hardware
 272  * palette if one is available. For now we support only 16bpp and thus store
 273  * the entry only to the pseudo palette.
 274  */
 275 static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
 276                         u_int blue, u_int transp, int update_hw_pal)
 277 {
 278         struct omapfb_plane_struct *plane = info->par;
 279         struct omapfb_device *fbdev = plane->fbdev;
 280         struct fb_var_screeninfo *var = &info->var;
 281         int r = 0;
 282
 283         switch (plane->color_mode) {
 284         case OMAPFB_COLOR_YUV422:
 285         case OMAPFB_COLOR_YUV420:
 286         case OMAPFB_COLOR_YUY422:
 287                 r = -EINVAL;
 288                 break;
 289         case OMAPFB_COLOR_CLUT_8BPP:
 290         case OMAPFB_COLOR_CLUT_4BPP:
 291         case OMAPFB_COLOR_CLUT_2BPP:
 292         case OMAPFB_COLOR_CLUT_1BPP:
 293                 if (fbdev->ctrl->setcolreg)
 294                         r = fbdev->ctrl->setcolreg(regno, red, green, blue,
 295                                                         transp, update_hw_pal);
 296                 /* Fallthrough */
 297         case OMAPFB_COLOR_RGB565:
 298         case OMAPFB_COLOR_RGB444:
 299                 if (r != 0)
 300                         break;
 301
 302                 if (regno < 0) {
 303                         r = -EINVAL;
 304                         break;
 305                 }
 306
 307                 if (regno < 16) {
 308                         u16 pal;
 309                         pal = ((red >> (16 - var->red.length)) <<
 310                                         var->red.offset) |
 311                               ((green >> (16 - var->green.length)) <<
 312                                         var->green.offset) |
 313                               (blue >> (16 - var->blue.length));
 314                         ((u32 *)(info->pseudo_palette))[regno] = pal;
 315                 }
 316                 break;
 317         default:
 318                 BUG();
 319         }
 320         return r;
 321 }
 322
 323 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 324                             u_int transp, struct fb_info *info)
 325 {
 326         return _setcolreg(info, regno, red, green, blue, transp, 1);
 327 }
 328
 329 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
 330 {
 331         int count, index, r;
 332         u16 *red, *green, *blue, *transp;
 333         u16 trans = 0xffff;
 334
 335         red     = cmap->red;
 336         green   = cmap->green;
 337         blue    = cmap->blue;
 338         transp  = cmap->transp;
 339         index   = cmap->start;
 340
 341         for (count = 0; count < cmap->len; count++) {
 342                 if (transp)
 343                         trans = *transp++;
 344                 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
 345                                 count == cmap->len - 1);
 346                 if (r != 0)
 347                         return r;
 348         }
 349
 350         return 0;
 351 }
 352
 353 static int omapfb_update_full_screen(struct fb_info *fbi);
 354
 355 static int omapfb_blank(int blank, struct fb_info *fbi)
 356 {
 357         struct omapfb_plane_struct *plane = fbi->par;
 358         struct omapfb_device *fbdev = plane->fbdev;
 359         int do_update = 0;
 360         int r = 0;
 361
 362         omapfb_rqueue_lock(fbdev);
 363         switch (blank) {
 364         case FB_BLANK_UNBLANK:
 365                 if (fbdev->state == OMAPFB_SUSPENDED) {
 366                         if (fbdev->ctrl->resume)
 367                                 fbdev->ctrl->resume();
 368                         fbdev->panel->enable(fbdev->panel);
 369                         fbdev->state = OMAPFB_ACTIVE;
 370                         if (fbdev->ctrl->get_update_mode() ==
 371                                         OMAPFB_MANUAL_UPDATE)
 372                                 do_update = 1;
 373                 }
 374                 break;
 375         case FB_BLANK_POWERDOWN:
 376                 if (fbdev->state == OMAPFB_ACTIVE) {
 377                         fbdev->panel->disable(fbdev->panel);
 378                         if (fbdev->ctrl->suspend)
 379                                 fbdev->ctrl->suspend();
 380                         fbdev->state = OMAPFB_SUSPENDED;
 381                 }
 382                 break;
 383         default:
 384                 r = -EINVAL;
 385         }
 386         omapfb_rqueue_unlock(fbdev);
 387
 388         if (r == 0 && do_update)
 389                 r = omapfb_update_full_screen(fbi);
 390
 391         return r;
 392 }
 393
 394 static void omapfb_sync(struct fb_info *fbi)
 395 {
 396         struct omapfb_plane_struct *plane = fbi->par;
 397         struct omapfb_device *fbdev = plane->fbdev;
 398
 399         omapfb_rqueue_lock(fbdev);
 400         if (fbdev->ctrl->sync)
 401                 fbdev->ctrl->sync();
 402         omapfb_rqueue_unlock(fbdev);
 403 }
 404
 405 /*
 406  * Set fb_info.fix fields and also updates fbdev.
 407  * When calling this fb_info.var must be set up already.
 408  */
 409 static void set_fb_fix(struct fb_info *fbi, int from_init)
 410 {
 411         struct fb_fix_screeninfo *fix = &fbi->fix;
 412         struct fb_var_screeninfo *var = &fbi->var;
 413         struct omapfb_plane_struct *plane = fbi->par;
 414         struct omapfb_mem_region *rg;
 415         int bpp;
 416
 417         rg = &plane->fbdev->mem_desc.region[plane->idx];
 418         fbi->screen_base        = rg->vaddr;
 419
 420         if (!from_init) {
 421                 mutex_lock(&fbi->mm_lock);
 422                 fix->smem_start         = rg->paddr;
 423                 fix->smem_len           = rg->size;
 424                 mutex_unlock(&fbi->mm_lock);
 425         } else {
 426                 fix->smem_start         = rg->paddr;
 427                 fix->smem_len           = rg->size;
 428         }
 429
 430         fix->type = FB_TYPE_PACKED_PIXELS;
 431         bpp = var->bits_per_pixel;
 432         if (var->nonstd)
 433                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 434         else switch (var->bits_per_pixel) {
 435         case 16:
 436         case 12:
 437                 fix->visual = FB_VISUAL_TRUECOLOR;
 438                 /* 12bpp is stored in 16 bits */
 439                 bpp = 16;
 440                 break;
 441         case 1:
 442         case 2:
 443         case 4:
 444         case 8:
 445                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 446                 break;
 447         }
 448         fix->accel              = FB_ACCEL_OMAP1610;
 449         fix->line_length        = var->xres_virtual * bpp / 8;
 450 }
 451
 452 static int set_color_mode(struct omapfb_plane_struct *plane,
 453                           struct fb_var_screeninfo *var)
 454 {
 455         switch (var->nonstd) {
 456         case 0:
 457                 break;
 458         case OMAPFB_COLOR_YUV422:
 459                 var->bits_per_pixel = 16;
 460                 plane->color_mode = var->nonstd;
 461                 return 0;
 462         case OMAPFB_COLOR_YUV420:
 463                 var->bits_per_pixel = 12;
 464                 plane->color_mode = var->nonstd;
 465                 return 0;
 466         case OMAPFB_COLOR_YUY422:
 467                 var->bits_per_pixel = 16;
 468                 plane->color_mode = var->nonstd;
 469                 return 0;
 470         default:
 471                 return -EINVAL;
 472         }
 473
 474         switch (var->bits_per_pixel) {
 475         case 1:
 476                 plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
 477                 return 0;
 478         case 2:
 479                 plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
 480                 return 0;
 481         case 4:
 482                 plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
 483                 return 0;
 484         case 8:
 485                 plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
 486                 return 0;
 487         case 12:
 488                 var->bits_per_pixel = 16;
 489         case 16:
 490                 if (plane->fbdev->panel->bpp == 12)
 491                         plane->color_mode = OMAPFB_COLOR_RGB444;
 492                 else
 493                         plane->color_mode = OMAPFB_COLOR_RGB565;
 494                 return 0;
 495         default:
 496                 return -EINVAL;
 497         }
 498 }
 499
 500 /*
 501  * Check the values in var against our capabilities and in case of out of
 502  * bound values try to adjust them.
 503  */
 504 static int set_fb_var(struct fb_info *fbi,
 505                       struct fb_var_screeninfo *var)
 506 {
 507         int             bpp;
 508         unsigned long   max_frame_size;
 509         unsigned long   line_size;
 510         int             xres_min, xres_max;
 511         int             yres_min, yres_max;
 512         struct omapfb_plane_struct *plane = fbi->par;
 513         struct omapfb_device *fbdev = plane->fbdev;
 514         struct lcd_panel *panel = fbdev->panel;
 515
 516         if (set_color_mode(plane, var) < 0)
 517                 return -EINVAL;
 518
 519         bpp = var->bits_per_pixel;
 520         if (plane->color_mode == OMAPFB_COLOR_RGB444)
 521                 bpp = 16;
 522
 523         switch (var->rotate) {
 524         case 0:
 525         case 180:
 526                 xres_min = OMAPFB_PLANE_XRES_MIN;
 527                 xres_max = panel->x_res;
 528                 yres_min = OMAPFB_PLANE_YRES_MIN;
 529                 yres_max = panel->y_res;
 530                 if (cpu_is_omap15xx()) {
 531                         var->xres = panel->x_res;
 532                         var->yres = panel->y_res;
 533                 }
 534                 break;
 535         case 90:
 536         case 270:
 537                 xres_min = OMAPFB_PLANE_YRES_MIN;
 538                 xres_max = panel->y_res;
 539                 yres_min = OMAPFB_PLANE_XRES_MIN;
 540                 yres_max = panel->x_res;
 541                 if (cpu_is_omap15xx()) {
 542                         var->xres = panel->y_res;
 543                         var->yres = panel->x_res;
 544                 }
 545                 break;
 546         default:
 547                 return -EINVAL;
 548         }
 549
 550         if (var->xres < xres_min)
 551                 var->xres = xres_min;
 552         if (var->yres < yres_min)
 553                 var->yres = yres_min;
 554         if (var->xres > xres_max)
 555                 var->xres = xres_max;
 556         if (var->yres > yres_max)
 557                 var->yres = yres_max;
 558
 559         if (var->xres_virtual < var->xres)
 560                 var->xres_virtual = var->xres;
 561         if (var->yres_virtual < var->yres)
 562                 var->yres_virtual = var->yres;
 563         max_frame_size = fbdev->mem_desc.region[plane->idx].size;
 564         line_size = var->xres_virtual * bpp / 8;
 565         if (line_size * var->yres_virtual > max_frame_size) {
 566                 /* Try to keep yres_virtual first */
 567                 line_size = max_frame_size / var->yres_virtual;
 568                 var->xres_virtual = line_size * 8 / bpp;
 569                 if (var->xres_virtual < var->xres) {
 570                         /* Still doesn't fit. Shrink yres_virtual too */
 571                         var->xres_virtual = var->xres;
 572                         line_size = var->xres * bpp / 8;
 573                         var->yres_virtual = max_frame_size / line_size;
 574                 }
 575                 /* Recheck this, as the virtual size changed. */
 576                 if (var->xres_virtual < var->xres)
 577                         var->xres = var->xres_virtual;
 578                 if (var->yres_virtual < var->yres)
 579                         var->yres = var->yres_virtual;
 580                 if (var->xres < xres_min || var->yres < yres_min)
 581                         return -EINVAL;
 582         }
 583         if (var->xres + var->xoffset > var->xres_virtual)
 584                 var->xoffset = var->xres_virtual - var->xres;
 585         if (var->yres + var->yoffset > var->yres_virtual)
 586                 var->yoffset = var->yres_virtual - var->yres;
 587
 588         if (plane->color_mode == OMAPFB_COLOR_RGB444) {
 589                 var->red.offset   = 8; var->red.length   = 4;
 590                                                 var->red.msb_right   = 0;
 591                 var->green.offset = 4; var->green.length = 4;
 592                                                 var->green.msb_right = 0;
 593                 var->blue.offset  = 0; var->blue.length  = 4;
 594                                                 var->blue.msb_right  = 0;
 595         } else {
 596                 var->red.offset  = 11; var->red.length   = 5;
 597                                                 var->red.msb_right   = 0;
 598                 var->green.offset = 5;  var->green.length = 6;
 599                                                 var->green.msb_right = 0;
 600                 var->blue.offset = 0;  var->blue.length  = 5;
 601                                                 var->blue.msb_right  = 0;
 602         }
 603
 604         var->height             = -1;
 605         var->width              = -1;
 606         var->grayscale          = 0;
 607
 608         /* pixclock in ps, the rest in pixclock */
 609         var->pixclock           = 10000000 / (panel->pixel_clock / 100);
 610         var->left_margin        = panel->hfp;
 611         var->right_margin       = panel->hbp;
 612         var->upper_margin       = panel->vfp;
 613         var->lower_margin       = panel->vbp;
 614         var->hsync_len          = panel->hsw;
 615         var->vsync_len          = panel->vsw;
 616
 617         /* TODO: get these from panel->config */
 618         var->vmode              = FB_VMODE_NONINTERLACED;
 619         var->sync               = 0;
 620
 621         return 0;
 622 }
 623
 624
 625 /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
 626 static void omapfb_rotate(struct fb_info *fbi, int rotate)
 627 {
 628         struct omapfb_plane_struct *plane = fbi->par;
 629         struct omapfb_device *fbdev = plane->fbdev;
 630
 631         omapfb_rqueue_lock(fbdev);
 632         if (rotate != fbi->var.rotate) {
 633                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 634
 635                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 636                 new_var->rotate = rotate;
 637                 if (set_fb_var(fbi, new_var) == 0 &&
 638                     memcmp(new_var, &fbi->var, sizeof(*new_var))) {
 639                         memcpy(&fbi->var, new_var, sizeof(*new_var));
 640                         ctrl_change_mode(fbi);
 641                 }
 642         }
 643         omapfb_rqueue_unlock(fbdev);
 644 }
 645
 646 /*
 647  * Set new x,y offsets in the virtual display for the visible area and switch
 648  * to the new mode.
 649  */
 650 static int omapfb_pan_display(struct fb_var_screeninfo *var,
 651                                struct fb_info *fbi)
 652 {
 653         struct omapfb_plane_struct *plane = fbi->par;
 654         struct omapfb_device *fbdev = plane->fbdev;
 655         int r = 0;
 656
 657         omapfb_rqueue_lock(fbdev);
 658         if (var->xoffset != fbi->var.xoffset ||
 659             var->yoffset != fbi->var.yoffset) {
 660                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 661
 662                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 663                 new_var->xoffset = var->xoffset;
 664                 new_var->yoffset = var->yoffset;
 665                 if (set_fb_var(fbi, new_var))
 666                         r = -EINVAL;
 667                 else {
 668                         memcpy(&fbi->var, new_var, sizeof(*new_var));
 669                         ctrl_change_mode(fbi);
 670                 }
 671         }
 672         omapfb_rqueue_unlock(fbdev);
 673
 674         return r;
 675 }
 676
 677 /* Set mirror to vertical axis and switch to the new mode. */
 678 static int omapfb_mirror(struct fb_info *fbi, int mirror)
 679 {
 680         struct omapfb_plane_struct *plane = fbi->par;
 681         struct omapfb_device *fbdev = plane->fbdev;
 682         int r = 0;
 683
 684         omapfb_rqueue_lock(fbdev);
 685         mirror = mirror ? 1 : 0;
 686         if (cpu_is_omap15xx())
 687                 r = -EINVAL;
 688         else if (mirror != plane->info.mirror) {
 689                 plane->info.mirror = mirror;
 690                 r = ctrl_change_mode(fbi);
 691         }
 692         omapfb_rqueue_unlock(fbdev);
 693
 694         return r;
 695 }
 696
 697 /*
 698  * Check values in var, try to adjust them in case of out of bound values if
 699  * possible, or return error.
 700  */
 701 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 702 {
 703         struct omapfb_plane_struct *plane = fbi->par;
 704         struct omapfb_device *fbdev = plane->fbdev;
 705         int r;
 706
 707         omapfb_rqueue_lock(fbdev);
 708         if (fbdev->ctrl->sync != NULL)
 709                 fbdev->ctrl->sync();
 710         r = set_fb_var(fbi, var);
 711         omapfb_rqueue_unlock(fbdev);
 712
 713         return r;
 714 }
 715
 716 /*
 717  * Switch to a new mode. The parameters for it has been check already by
 718  * omapfb_check_var.
 719  */
 720 static int omapfb_set_par(struct fb_info *fbi)
 721 {
 722         struct omapfb_plane_struct *plane = fbi->par;
 723         struct omapfb_device *fbdev = plane->fbdev;
 724         int r = 0;
 725
 726         omapfb_rqueue_lock(fbdev);
 727         set_fb_fix(fbi, 0);
 728         r = ctrl_change_mode(fbi);
 729         omapfb_rqueue_unlock(fbdev);
 730
 731         return r;
 732 }
 733
 734 int omapfb_update_window_async(struct fb_info *fbi,
 735                                 struct omapfb_update_window *win,
 736                                 void (*callback)(void *),
 737                                 void *callback_data)
 738 {
 739         int xres, yres;
 740         struct omapfb_plane_struct *plane = fbi->par;
 741         struct omapfb_device *fbdev = plane->fbdev;
 742         struct fb_var_screeninfo *var = &fbi->var;
 743
 744         switch (var->rotate) {
 745         case 0:
 746         case 180:
 747                 xres = fbdev->panel->x_res;
 748                 yres = fbdev->panel->y_res;
 749                 break;
 750         case 90:
 751         case 270:
 752                 xres = fbdev->panel->y_res;
 753                 yres = fbdev->panel->x_res;
 754                 break;
 755         default:
 756                 return -EINVAL;
 757         }
 758
 759         if (win->x >= xres || win->y >= yres ||
 760             win->out_x > xres || win->out_y > yres)
 761                 return -EINVAL;
 762
 763         if (!fbdev->ctrl->update_window ||
 764             fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
 765                 return -ENODEV;
 766
 767         if (win->x + win->width > xres)
 768                 win->width = xres - win->x;
 769         if (win->y + win->height > yres)
 770                 win->height = yres - win->y;
 771         if (win->out_x + win->out_width > xres)
 772                 win->out_width = xres - win->out_x;
 773         if (win->out_y + win->out_height > yres)
 774                 win->out_height = yres - win->out_y;
 775         if (!win->width || !win->height || !win->out_width || !win->out_height)
 776                 return 0;
 777
 778         return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
 779 }
 780 EXPORT_SYMBOL(omapfb_update_window_async);
 781
 782 static int omapfb_update_win(struct fb_info *fbi,
 783                                 struct omapfb_update_window *win)
 784 {
 785         struct omapfb_plane_struct *plane = fbi->par;
 786         int ret;
 787
 788         omapfb_rqueue_lock(plane->fbdev);
 789         ret = omapfb_update_window_async(fbi, win, NULL, NULL);
 790         omapfb_rqueue_unlock(plane->fbdev);
 791
 792         return ret;
 793 }
 794
 795 static int omapfb_update_full_screen(struct fb_info *fbi)
 796 {
 797         struct omapfb_plane_struct *plane = fbi->par;
 798         struct omapfb_device *fbdev = plane->fbdev;
 799         struct omapfb_update_window win;
 800         int r;
 801
 802         if (!fbdev->ctrl->update_window ||
 803             fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
 804                 return -ENODEV;
 805
 806         win.x = 0;
 807         win.y = 0;
 808         win.width = fbi->var.xres;
 809         win.height = fbi->var.yres;
 810         win.out_x = 0;
 811         win.out_y = 0;
 812         win.out_width = fbi->var.xres;
 813         win.out_height = fbi->var.yres;
 814         win.format = 0;
 815
 816         omapfb_rqueue_lock(fbdev);
 817         r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
 818         omapfb_rqueue_unlock(fbdev);
 819
 820         return r;
 821 }
 822
 823 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 824 {
 825         struct omapfb_plane_struct *plane = fbi->par;
 826         struct omapfb_device *fbdev = plane->fbdev;
 827         struct lcd_panel *panel = fbdev->panel;
 828         struct omapfb_plane_info old_info;
 829         int r = 0;
 830
 831         if (pi->pos_x + pi->out_width > panel->x_res ||
 832             pi->pos_y + pi->out_height > panel->y_res)
 833                 return -EINVAL;
 834
 835         omapfb_rqueue_lock(fbdev);
 836         if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
 837                 /*
 838                  * This plane's memory was freed, can't enable it
 839                  * until it's reallocated.
 840                  */
 841                 r = -EINVAL;
 842                 goto out;
 843         }
 844         old_info = plane->info;
 845         plane->info = *pi;
 846         if (pi->enabled) {
 847                 r = ctrl_change_mode(fbi);
 848                 if (r < 0) {
 849                         plane->info = old_info;
 850                         goto out;
 851                 }
 852         }
 853         r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
 854         if (r < 0) {
 855                 plane->info = old_info;
 856                 goto out;
 857         }
 858 out:
 859         omapfb_rqueue_unlock(fbdev);
 860         return r;
 861 }
 862
 863 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 864 {
 865         struct omapfb_plane_struct *plane = fbi->par;
 866
 867         *pi = plane->info;
 868         return 0;
 869 }
 870
 871 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 872 {
 873         struct omapfb_plane_struct *plane = fbi->par;
 874         struct omapfb_device *fbdev = plane->fbdev;
 875         struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
 876         size_t size;
 877         int r = 0;
 878
 879         if (fbdev->ctrl->setup_mem == NULL)
 880                 return -ENODEV;
 881         if (mi->type > OMAPFB_MEMTYPE_MAX)
 882                 return -EINVAL;
 883
 884         size = PAGE_ALIGN(mi->size);
 885         omapfb_rqueue_lock(fbdev);
 886         if (plane->info.enabled) {
 887                 r = -EBUSY;
 888                 goto out;
 889         }
 890         if (rg->size != size || rg->type != mi->type) {
 891                 struct fb_var_screeninfo *new_var = &fbdev->new_var;
 892                 unsigned long old_size = rg->size;
 893                 u8            old_type = rg->type;
 894                 unsigned long paddr;
 895
 896                 rg->size = size;
 897                 rg->type = mi->type;
 898                 /*
 899                  * size == 0 is a special case, for which we
 900                  * don't check / adjust the screen parameters.
 901                  * This isn't a problem since the plane can't
 902                  * be reenabled unless its size is > 0.
 903                  */
 904                 if (old_size != size && size) {
 905                         if (size) {
 906                                 memcpy(new_var, &fbi->var, sizeof(*new_var));
 907                                 r = set_fb_var(fbi, new_var);
 908                                 if (r < 0)
 909                                         goto out;
 910                         }
 911                 }
 912
 913                 if (fbdev->ctrl->sync)
 914                         fbdev->ctrl->sync();
 915                 r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
 916                 if (r < 0) {
 917                         /* Revert changes. */
 918                         rg->size = old_size;
 919                         rg->type = old_type;
 920                         goto out;
 921                 }
 922                 rg->paddr = paddr;
 923
 924                 if (old_size != size) {
 925                         if (size) {
 926                                 memcpy(&fbi->var, new_var, sizeof(fbi->var));
 927                                 set_fb_fix(fbi, 0);
 928                         } else {
 929                                 /*
 930                                  * Set these explicitly to indicate that the
 931                                  * plane memory is dealloce'd, the other
 932                                  * screen parameters in var / fix are invalid.
 933                                  */
 934                                 mutex_lock(&fbi->mm_lock);
 935                                 fbi->fix.smem_start = 0;
 936                                 fbi->fix.smem_len = 0;
 937                                 mutex_unlock(&fbi->mm_lock);
 938                         }
 939                 }
 940         }
 941 out:
 942         omapfb_rqueue_unlock(fbdev);
 943
 944         return r;
 945 }
 946
 947 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 948 {
 949         struct omapfb_plane_struct *plane = fbi->par;
 950         struct omapfb_device *fbdev = plane->fbdev;
 951         struct omapfb_mem_region *rg;
 952
 953         rg = &fbdev->mem_desc.region[plane->idx];
 954         memset(mi, 0, sizeof(*mi));
 955         mi->size = rg->size;
 956         mi->type = rg->type;
 957
 958         return 0;
 959 }
 960
 961 static int omapfb_set_color_key(struct omapfb_device *fbdev,
 962                                 struct omapfb_color_key *ck)
 963 {
 964         int r;
 965
 966         if (!fbdev->ctrl->set_color_key)
 967                 return -ENODEV;
 968
 969         omapfb_rqueue_lock(fbdev);
 970         r = fbdev->ctrl->set_color_key(ck);
 971         omapfb_rqueue_unlock(fbdev);
 972
 973         return r;
 974 }
 975
 976 static int omapfb_get_color_key(struct omapfb_device *fbdev,
 977                                 struct omapfb_color_key *ck)
 978 {
 979         int r;
 980
 981         if (!fbdev->ctrl->get_color_key)
 982                 return -ENODEV;
 983
 984         omapfb_rqueue_lock(fbdev);
 985         r = fbdev->ctrl->get_color_key(ck);
 986         omapfb_rqueue_unlock(fbdev);
 987
 988         return r;
 989 }
 990
 991 static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
 992 static int notifier_inited;
 993
 994 static void omapfb_init_notifier(void)
 995 {
 996         int i;
 997
 998         for (i = 0; i < OMAPFB_PLANE_NUM; i++)
 999                 BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
1000 }
1001
1002 int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
1003                                 omapfb_notifier_callback_t callback,
1004                                 void *callback_data)
1005 {
1006         int r;
1007
1008         if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
1009                 return -EINVAL;
1010
1011         if (!notifier_inited) {
1012                 omapfb_init_notifier();
1013                 notifier_inited = 1;
1014         }
1015
1016         omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
1017                                         unsigned long, void *))callback;
1018         omapfb_nb->data = callback_data;
1019         r = blocking_notifier_chain_register(
1020                                 &omapfb_client_list[omapfb_nb->plane_idx],
1021                                 &omapfb_nb->nb);
1022         if (r)
1023                 return r;
1024         if (omapfb_dev != NULL &&
1025             omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
1026                 omapfb_dev->ctrl->bind_client(omapfb_nb);
1027         }
1028
1029         return 0;
1030 }
1031 EXPORT_SYMBOL(omapfb_register_client);
1032
1033 int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
1034 {
1035         return blocking_notifier_chain_unregister(
1036                 &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
1037 }
1038 EXPORT_SYMBOL(omapfb_unregister_client);
1039
1040 void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
1041 {
1042         int i;
1043
1044         if (!notifier_inited)
1045                 /* no client registered yet */
1046                 return;
1047
1048         for (i = 0; i < OMAPFB_PLANE_NUM; i++)
1049                 blocking_notifier_call_chain(&omapfb_client_list[i], event,
1050                                     fbdev->fb_info[i]);
1051 }
1052 EXPORT_SYMBOL(omapfb_notify_clients);
1053
1054 static int omapfb_set_update_mode(struct omapfb_device *fbdev,
1055                                    enum omapfb_update_mode mode)
1056 {
1057         int r;
1058
1059         omapfb_rqueue_lock(fbdev);
1060         r = fbdev->ctrl->set_update_mode(mode);
1061         omapfb_rqueue_unlock(fbdev);
1062
1063         return r;
1064 }
1065
1066 static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
1067 {
1068         int r;
1069
1070         omapfb_rqueue_lock(fbdev);
1071         r = fbdev->ctrl->get_update_mode();
1072         omapfb_rqueue_unlock(fbdev);
1073
1074         return r;
1075 }
1076
1077 static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
1078                                      struct omapfb_caps *caps)
1079 {
1080         memset(caps, 0, sizeof(*caps));
1081         fbdev->ctrl->get_caps(plane, caps);
1082         caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
1083 }
1084
1085 /* For lcd testing */
1086 void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
1087 {
1088         omapfb_rqueue_lock(fbdev);
1089         *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
1090         if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
1091                 struct omapfb_update_window win;
1092
1093                 memset(&win, 0, sizeof(win));
1094                 win.width = 2;
1095                 win.height = 2;
1096                 win.out_width = 2;
1097                 win.out_height = 2;
1098                 fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
1099         }
1100         omapfb_rqueue_unlock(fbdev);
1101 }
1102 EXPORT_SYMBOL(omapfb_write_first_pixel);
1103
1104 /*
1105  * Ioctl interface. Part of the kernel mode frame buffer API is duplicated
1106  * here to be accessible by user mode code.
1107  */
1108 static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
1109                         unsigned long arg)
1110 {
1111         struct omapfb_plane_struct *plane = fbi->par;
1112         struct omapfb_device    *fbdev = plane->fbdev;
1113         struct fb_ops           *ops = fbi->fbops;
1114         union {
1115                 struct omapfb_update_window     update_window;
1116                 struct omapfb_plane_info        plane_info;
1117                 struct omapfb_mem_info          mem_info;
1118                 struct omapfb_color_key         color_key;
1119                 enum omapfb_update_mode         update_mode;
1120                 struct omapfb_caps              caps;
1121                 unsigned int            mirror;
1122                 int                     plane_out;
1123                 int                     enable_plane;
1124         } p;
1125         int r = 0;
1126
1127         BUG_ON(!ops);
1128         switch (cmd) {
1129         case OMAPFB_MIRROR:
1130                 if (get_user(p.mirror, (int __user *)arg))
1131                         r = -EFAULT;
1132                 else
1133                         omapfb_mirror(fbi, p.mirror);
1134                 break;
1135         case OMAPFB_SYNC_GFX:
1136                 omapfb_sync(fbi);
1137                 break;
1138         case OMAPFB_VSYNC:
1139                 break;
1140         case OMAPFB_SET_UPDATE_MODE:
1141                 if (get_user(p.update_mode, (int __user *)arg))
1142                         r = -EFAULT;
1143                 else
1144                         r = omapfb_set_update_mode(fbdev, p.update_mode);
1145                 break;
1146         case OMAPFB_GET_UPDATE_MODE:
1147                 p.update_mode = omapfb_get_update_mode(fbdev);
1148                 if (put_user(p.update_mode,
1149                                         (enum omapfb_update_mode __user *)arg))
1150                         r = -EFAULT;
1151                 break;
1152         case OMAPFB_UPDATE_WINDOW_OLD:
1153                 if (copy_from_user(&p.update_window, (void __user *)arg,
1154                                    sizeof(struct omapfb_update_window_old)))
1155                         r = -EFAULT;
1156                 else {
1157                         struct omapfb_update_window *u = &p.update_window;
1158                         u->out_x = u->x;
1159                         u->out_y = u->y;
1160                         u->out_width = u->width;
1161                         u->out_height = u->height;
1162                         memset(u->reserved, 0, sizeof(u->reserved));
1163                         r = omapfb_update_win(fbi, u);
1164                 }
1165                 break;
1166         case OMAPFB_UPDATE_WINDOW:
1167                 if (copy_from_user(&p.update_window, (void __user *)arg,
1168                                    sizeof(p.update_window)))
1169                         r = -EFAULT;
1170                 else
1171                         r = omapfb_update_win(fbi, &p.update_window);
1172                 break;
1173         case OMAPFB_SETUP_PLANE:
1174                 if (copy_from_user(&p.plane_info, (void __user *)arg,
1175                                    sizeof(p.plane_info)))
1176                         r = -EFAULT;
1177                 else
1178                         r = omapfb_setup_plane(fbi, &p.plane_info);
1179                 break;
1180         case OMAPFB_QUERY_PLANE:
1181                 if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
1182                         break;
1183                 if (copy_to_user((void __user *)arg, &p.plane_info,
1184                                    sizeof(p.plane_info)))
1185                         r = -EFAULT;
1186                 break;
1187         case OMAPFB_SETUP_MEM:
1188                 if (copy_from_user(&p.mem_info, (void __user *)arg,
1189                                    sizeof(p.mem_info)))
1190                         r = -EFAULT;
1191                 else
1192                         r = omapfb_setup_mem(fbi, &p.mem_info);
1193                 break;
1194         case OMAPFB_QUERY_MEM:
1195                 if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
1196                         break;
1197                 if (copy_to_user((void __user *)arg, &p.mem_info,
1198                                    sizeof(p.mem_info)))
1199                         r = -EFAULT;
1200                 break;
1201         case OMAPFB_SET_COLOR_KEY:
1202                 if (copy_from_user(&p.color_key, (void __user *)arg,
1203                                    sizeof(p.color_key)))
1204                         r = -EFAULT;
1205                 else
1206                         r = omapfb_set_color_key(fbdev, &p.color_key);
1207                 break;
1208         case OMAPFB_GET_COLOR_KEY:
1209                 if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
1210                         break;
1211                 if (copy_to_user((void __user *)arg, &p.color_key,
1212                                  sizeof(p.color_key)))
1213                         r = -EFAULT;
1214                 break;
1215         case OMAPFB_GET_CAPS:
1216                 omapfb_get_caps(fbdev, plane->idx, &p.caps);
1217                 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
1218                         r = -EFAULT;
1219                 break;
1220         case OMAPFB_LCD_TEST:
1221                 {
1222                         int test_num;
1223
1224                         if (get_user(test_num, (int __user *)arg)) {
1225                                 r = -EFAULT;
1226                                 break;
1227                         }
1228                         if (!fbdev->panel->run_test) {
1229                                 r = -EINVAL;
1230                                 break;
1231                         }
1232                         r = fbdev->panel->run_test(fbdev->panel, test_num);
1233                         break;
1234                 }
1235         case OMAPFB_CTRL_TEST:
1236                 {
1237                         int test_num;
1238
1239                         if (get_user(test_num, (int __user *)arg)) {
1240                                 r = -EFAULT;
1241                                 break;
1242                         }
1243                         if (!fbdev->ctrl->run_test) {
1244                                 r = -EINVAL;
1245                                 break;
1246                         }
1247                         r = fbdev->ctrl->run_test(test_num);
1248                         break;
1249                 }
1250         default:
1251                 r = -EINVAL;
1252         }
1253
1254         return r;
1255 }
1256
1257 static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1258 {
1259         struct omapfb_plane_struct *plane = info->par;
1260         struct omapfb_device *fbdev = plane->fbdev;
1261         int r;
1262
1263         omapfb_rqueue_lock(fbdev);
1264         r = fbdev->ctrl->mmap(info, vma);
1265         omapfb_rqueue_unlock(fbdev);
1266
1267         return r;
1268 }
1269
1270 /*
1271  * Callback table for the frame buffer framework. Some of these pointers
1272  * will be changed according to the current setting of fb_info->accel_flags.
1273  */
1274 static struct fb_ops omapfb_ops = {
1275         .owner          = THIS_MODULE,
1276         .fb_open        = omapfb_open,
1277         .fb_release     = omapfb_release,
1278         .fb_setcolreg   = omapfb_setcolreg,
1279         .fb_setcmap     = omapfb_setcmap,
1280         .fb_fillrect    = cfb_fillrect,
1281         .fb_copyarea    = cfb_copyarea,
1282         .fb_imageblit   = cfb_imageblit,
1283         .fb_blank       = omapfb_blank,
1284         .fb_ioctl       = omapfb_ioctl,
1285         .fb_check_var   = omapfb_check_var,
1286         .fb_set_par     = omapfb_set_par,
1287         .fb_rotate      = omapfb_rotate,
1288         .fb_pan_display = omapfb_pan_display,
1289 };
1290
1291 /*
1292  * ---------------------------------------------------------------------------
1293  * Sysfs interface
1294  * ---------------------------------------------------------------------------
1295  */
1296 /* omapfbX sysfs entries */
1297 static ssize_t omapfb_show_caps_num(struct device *dev,
1298                                     struct device_attribute *attr, char *buf)
1299 {
1300         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1301         int plane;
1302         size_t size;
1303         struct omapfb_caps caps;
1304
1305         plane = 0;
1306         size = 0;
1307         while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1308                 omapfb_get_caps(fbdev, plane, &caps);
1309                 size += snprintf(&buf[size], PAGE_SIZE - size,
1310                         "plane#%d %#010x %#010x %#010x\n",
1311                         plane, caps.ctrl, caps.plane_color, caps.wnd_color);
1312                 plane++;
1313         }
1314         return size;
1315 }
1316
1317 static ssize_t omapfb_show_caps_text(struct device *dev,
1318                                      struct device_attribute *attr, char *buf)
1319 {
1320         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1321         int i;
1322         struct omapfb_caps caps;
1323         int plane;
1324         size_t size;
1325
1326         plane = 0;
1327         size = 0;
1328         while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1329                 omapfb_get_caps(fbdev, plane, &caps);
1330                 size += snprintf(&buf[size], PAGE_SIZE - size,
1331                                  "plane#%d:\n", plane);
1332                 for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
1333                      size < PAGE_SIZE; i++) {
1334                         if (ctrl_caps[i].flag & caps.ctrl)
1335                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1336                                         " %s\n", ctrl_caps[i].name);
1337                 }
1338                 size += snprintf(&buf[size], PAGE_SIZE - size,
1339                                  " plane colors:\n");
1340                 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1341                      size < PAGE_SIZE; i++) {
1342                         if (color_caps[i].flag & caps.plane_color)
1343                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1344                                         "  %s\n", color_caps[i].name);
1345                 }
1346                 size += snprintf(&buf[size], PAGE_SIZE - size,
1347                                  " window colors:\n");
1348                 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1349                      size < PAGE_SIZE; i++) {
1350                         if (color_caps[i].flag & caps.wnd_color)
1351                                 size += snprintf(&buf[size], PAGE_SIZE - size,
1352                                         "  %s\n", color_caps[i].name);
1353                 }
1354
1355                 plane++;
1356         }
1357         return size;
1358 }
1359
1360 static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
1361 static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
1362
1363 /* panel sysfs entries */
1364 static ssize_t omapfb_show_panel_name(struct device *dev,
1365                                       struct device_attribute *attr, char *buf)
1366 {
1367         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1368
1369         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
1370 }
1371
1372 static ssize_t omapfb_show_bklight_level(struct device *dev,
1373                                          struct device_attribute *attr,
1374                                          char *buf)
1375 {
1376         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1377         int r;
1378
1379         if (fbdev->panel->get_bklight_level) {
1380                 r = snprintf(buf, PAGE_SIZE, "%d\n",
1381                              fbdev->panel->get_bklight_level(fbdev->panel));
1382         } else
1383                 r = -ENODEV;
1384         return r;
1385 }
1386
1387 static ssize_t omapfb_store_bklight_level(struct device *dev,
1388                                           struct device_attribute *attr,
1389                                           const char *buf, size_t size)
1390 {
1391         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1392         int r;
1393
1394         if (fbdev->panel->set_bklight_level) {
1395                 unsigned int level;
1396
1397                 if (sscanf(buf, "%10d", &level) == 1) {
1398                         r = fbdev->panel->set_bklight_level(fbdev->panel,
1399                                                             level);
1400                 } else
1401                         r = -EINVAL;
1402         } else
1403                 r = -ENODEV;
1404         return r ? r : size;
1405 }
1406
1407 static ssize_t omapfb_show_bklight_max(struct device *dev,
1408                                        struct device_attribute *attr, char *buf)
1409 {
1410         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1411         int r;
1412
1413         if (fbdev->panel->get_bklight_level) {
1414                 r = snprintf(buf, PAGE_SIZE, "%d\n",
1415                              fbdev->panel->get_bklight_max(fbdev->panel));
1416         } else
1417                 r = -ENODEV;
1418         return r;
1419 }
1420
1421 static struct device_attribute dev_attr_panel_name =
1422         __ATTR(name, 0444, omapfb_show_panel_name, NULL);
1423 static DEVICE_ATTR(backlight_level, 0664,
1424                    omapfb_show_bklight_level, omapfb_store_bklight_level);
1425 static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
1426
1427 static struct attribute *panel_attrs[] = {
1428         &dev_attr_panel_name.attr,
1429         &dev_attr_backlight_level.attr,
1430         &dev_attr_backlight_max.attr,
1431         NULL,
1432 };
1433
1434 static struct attribute_group panel_attr_grp = {
1435         .name  = "panel",
1436         .attrs = panel_attrs,
1437 };
1438
1439 /* ctrl sysfs entries */
1440 static ssize_t omapfb_show_ctrl_name(struct device *dev,
1441                                      struct device_attribute *attr, char *buf)
1442 {
1443         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1444
1445         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
1446 }
1447
1448 static struct device_attribute dev_attr_ctrl_name =
1449         __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
1450
1451 static struct attribute *ctrl_attrs[] = {
1452         &dev_attr_ctrl_name.attr,
1453         NULL,
1454 };
1455
1456 static struct attribute_group ctrl_attr_grp = {
1457         .name  = "ctrl",
1458         .attrs = ctrl_attrs,
1459 };
1460
1461 static int omapfb_register_sysfs(struct omapfb_device *fbdev)
1462 {
1463         int r;
1464
1465         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
1466                 goto fail0;
1467
1468         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
1469                 goto fail1;
1470
1471         if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
1472                 goto fail2;
1473
1474         if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
1475                 goto fail3;
1476
1477         return 0;
1478 fail3:
1479         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1480 fail2:
1481         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1482 fail1:
1483         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1484 fail0:
1485         dev_err(fbdev->dev, "unable to register sysfs interface\n");
1486         return r;
1487 }
1488
1489 static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
1490 {
1491         sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
1492         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1493         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1494         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1495 }
1496
1497 /*
1498  * ---------------------------------------------------------------------------
1499  * LDM callbacks
1500  * ---------------------------------------------------------------------------
1501  */
1502 /* Initialize system fb_info object and set the default video mode.
1503  * The frame buffer memory already allocated by lcddma_init
1504  */
1505 static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
1506 {
1507         struct fb_var_screeninfo        *var = &info->var;
1508         struct fb_fix_screeninfo        *fix = &info->fix;
1509         int                             r = 0;
1510
1511         info->fbops = &omapfb_ops;
1512         info->flags = FBINFO_FLAG_DEFAULT;
1513
1514         strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
1515
1516         info->pseudo_palette = fbdev->pseudo_palette;
1517
1518         var->accel_flags  = def_accel ? FB_ACCELF_TEXT : 0;
1519         var->xres = def_vxres;
1520         var->yres = def_vyres;
1521         var->xres_virtual = def_vxres;
1522         var->yres_virtual = def_vyres;
1523         var->rotate       = def_rotate;
1524         var->bits_per_pixel = fbdev->panel->bpp;
1525
1526         set_fb_var(info, var);
1527         set_fb_fix(info, 1);
1528
1529         r = fb_alloc_cmap(&info->cmap, 16, 0);
1530         if (r != 0)
1531                 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1532
1533         return r;
1534 }
1535
1536 /* Release the fb_info object */
1537 static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
1538 {
1539         fb_dealloc_cmap(&fbi->cmap);
1540 }
1541
1542 static void planes_cleanup(struct omapfb_device *fbdev)
1543 {
1544         int i;
1545
1546         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1547                 if (fbdev->fb_info[i] == NULL)
1548                         break;
1549                 fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
1550                 framebuffer_release(fbdev->fb_info[i]);
1551         }
1552 }
1553
1554 static int planes_init(struct omapfb_device *fbdev)
1555 {
1556         struct fb_info *fbi;
1557         int i;
1558         int r;
1559
1560         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1561                 struct omapfb_plane_struct *plane;
1562                 fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
1563                                         fbdev->dev);
1564                 if (fbi == NULL) {
1565                         dev_err(fbdev->dev,
1566                                 "unable to allocate memory for plane info\n");
1567                         planes_cleanup(fbdev);
1568                         return -ENOMEM;
1569                 }
1570                 plane = fbi->par;
1571                 plane->idx = i;
1572                 plane->fbdev = fbdev;
1573                 plane->info.mirror = def_mirror;
1574                 fbdev->fb_info[i] = fbi;
1575
1576                 if ((r = fbinfo_init(fbdev, fbi)) < 0) {
1577                         framebuffer_release(fbi);
1578                         planes_cleanup(fbdev);
1579                         return r;
1580                 }
1581                 plane->info.out_width = fbi->var.xres;
1582                 plane->info.out_height = fbi->var.yres;
1583         }
1584         return 0;
1585 }
1586
1587 /*
1588  * Free driver resources. Can be called to rollback an aborted initialization
1589  * sequence.
1590  */
1591 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
1592 {
1593         int i;
1594
1595         switch (state) {
1596         case OMAPFB_ACTIVE:
1597                 for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
1598                         unregister_framebuffer(fbdev->fb_info[i]);
1599         case 7:
1600                 omapfb_unregister_sysfs(fbdev);
1601         case 6:
1602                 fbdev->panel->disable(fbdev->panel);
1603         case 5:
1604                 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1605         case 4:
1606                 planes_cleanup(fbdev);
1607         case 3:
1608                 ctrl_cleanup(fbdev);
1609         case 2:
1610                 fbdev->panel->cleanup(fbdev->panel);
1611         case 1:
1612                 dev_set_drvdata(fbdev->dev, NULL);
1613                 kfree(fbdev);
1614         case 0:
1615                 /* nothing to free */
1616                 break;
1617         default:
1618                 BUG();
1619         }
1620 }
1621
1622 static int omapfb_find_ctrl(struct omapfb_device *fbdev)
1623 {
1624         struct omapfb_platform_data *conf;
1625         char name[17];
1626         int i;
1627
1628         conf = fbdev->dev->platform_data;
1629
1630         fbdev->ctrl = NULL;
1631
1632         strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
1633         name[sizeof(name) - 1] = '\0';
1634
1635         if (strcmp(name, "internal") == 0) {
1636                 fbdev->ctrl = fbdev->int_ctrl;
1637                 return 0;
1638         }
1639
1640         for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
1641                 dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
1642                 if (strcmp(ctrls[i]->name, name) == 0) {
1643                         fbdev->ctrl = ctrls[i];
1644                         break;
1645                 }
1646         }
1647
1648         if (fbdev->ctrl == NULL) {
1649                 dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
1650                 return -1;
1651         }
1652
1653         return 0;
1654 }
1655
1656 static void check_required_callbacks(struct omapfb_device *fbdev)
1657 {
1658 #define _C(x) (fbdev->ctrl->x != NULL)
1659 #define _P(x) (fbdev->panel->x != NULL)
1660         BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
1661         BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
1662                  _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
1663                  _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
1664                  _P(get_caps)));
1665 #undef _P
1666 #undef _C
1667 }
1668
1669 /*
1670  * Called by LDM binding to probe and attach a new device.
1671  * Initialization sequence:
1672  *   1. allocate system omapfb_device structure
1673  *   2. select controller type according to platform configuration
1674  *      init LCD panel
1675  *   3. init LCD controller and LCD DMA
1676  *   4. init system fb_info structure for all planes
1677  *   5. setup video mode for first plane and enable it
1678  *   6. enable LCD panel
1679  *   7. register sysfs attributes
1680  *   OMAPFB_ACTIVE: register system fb_info structure for all planes
1681  */
1682 static int omapfb_do_probe(struct platform_device *pdev,
1683                                 struct lcd_panel *panel)
1684 {
1685         struct omapfb_device    *fbdev = NULL;
1686         int                     init_state;
1687         unsigned long           phz, hhz, vhz;
1688         unsigned long           vram;
1689         int                     i;
1690         int                     r = 0;
1691
1692         init_state = 0;
1693
1694         if (pdev->num_resources != 0) {
1695                 dev_err(&pdev->dev, "probed for an unknown device\n");
1696                 r = -ENODEV;
1697                 goto cleanup;
1698         }
1699
1700         if (pdev->dev.platform_data == NULL) {
1701                 dev_err(&pdev->dev, "missing platform data\n");
1702                 r = -ENOENT;
1703                 goto cleanup;
1704         }
1705
1706         fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
1707         if (fbdev == NULL) {
1708                 dev_err(&pdev->dev,
1709                         "unable to allocate memory for device info\n");
1710                 r = -ENOMEM;
1711                 goto cleanup;
1712         }
1713         init_state++;
1714
1715         fbdev->dev = &pdev->dev;
1716         fbdev->panel = panel;
1717         fbdev->dssdev = &omapdss_device;
1718         platform_set_drvdata(pdev, fbdev);
1719
1720         mutex_init(&fbdev->rqueue_mutex);
1721
1722 #ifdef CONFIG_ARCH_OMAP1
1723         fbdev->int_ctrl = &omap1_int_ctrl;
1724 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1725         fbdev->ext_if = &omap1_ext_if;
1726 #endif
1727 #else   /* OMAP2 */
1728         fbdev->int_ctrl = &omap2_int_ctrl;
1729 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1730         fbdev->ext_if = &omap2_ext_if;
1731 #endif
1732 #endif
1733         if (omapfb_find_ctrl(fbdev) < 0) {
1734                 dev_err(fbdev->dev,
1735                         "LCD controller not found, board not supported\n");
1736                 r = -ENODEV;
1737                 goto cleanup;
1738         }
1739
1740         r = fbdev->panel->init(fbdev->panel, fbdev);
1741         if (r)
1742                 goto cleanup;
1743
1744         pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
1745
1746         def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
1747         def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
1748
1749         init_state++;
1750
1751         r = ctrl_init(fbdev);
1752         if (r)
1753                 goto cleanup;
1754         if (fbdev->ctrl->mmap != NULL)
1755                 omapfb_ops.fb_mmap = omapfb_mmap;
1756         init_state++;
1757
1758         check_required_callbacks(fbdev);
1759
1760         r = planes_init(fbdev);
1761         if (r)
1762                 goto cleanup;
1763         init_state++;
1764
1765 #ifdef CONFIG_FB_OMAP_DMA_TUNE
1766         /* Set DMA priority for EMIFF access to highest */
1767         if (cpu_class_is_omap1())
1768                 omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
1769 #endif
1770
1771         r = ctrl_change_mode(fbdev->fb_info[0]);
1772         if (r) {
1773                 dev_err(fbdev->dev, "mode setting failed\n");
1774                 goto cleanup;
1775         }
1776
1777         /* GFX plane is enabled by default */
1778         r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
1779         if (r)
1780                 goto cleanup;
1781
1782         omapfb_set_update_mode(fbdev, manual_update ?
1783                                    OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
1784         init_state++;
1785
1786         r = fbdev->panel->enable(fbdev->panel);
1787         if (r)
1788                 goto cleanup;
1789         init_state++;
1790
1791         r = omapfb_register_sysfs(fbdev);
1792         if (r)
1793                 goto cleanup;
1794         init_state++;
1795
1796         vram = 0;
1797         for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1798                 r = register_framebuffer(fbdev->fb_info[i]);
1799                 if (r != 0) {
1800                         dev_err(fbdev->dev,
1801                                 "registering framebuffer %d failed\n", i);
1802                         goto cleanup;
1803                 }
1804                 vram += fbdev->mem_desc.region[i].size;
1805         }
1806
1807         fbdev->state = OMAPFB_ACTIVE;
1808
1809         panel = fbdev->panel;
1810         phz = panel->pixel_clock * 1000;
1811         hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
1812         vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
1813
1814         omapfb_dev = fbdev;
1815
1816         pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
1817                         vram, fbdev->mem_desc.region_cnt);
1818         pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
1819                         "vfreq %lu.%lu Hz\n",
1820                         phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
1821
1822         return 0;
1823
1824 cleanup:
1825         omapfb_free_resources(fbdev, init_state);
1826
1827         return r;
1828 }
1829
1830 static int omapfb_probe(struct platform_device *pdev)
1831 {
1832         int r;
1833
1834         BUG_ON(fbdev_pdev != NULL);
1835
1836         r = platform_device_register(&omapdss_device);
1837         if (r) {
1838                 dev_err(&pdev->dev, "can't register omapdss device\n");
1839                 return r;
1840         }
1841
1842         /* Delay actual initialization until the LCD is registered */
1843         fbdev_pdev = pdev;
1844         if (fbdev_panel != NULL)
1845                 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1846         return 0;
1847 }
1848
1849 void omapfb_register_panel(struct lcd_panel *panel)
1850 {
1851         BUG_ON(fbdev_panel != NULL);
1852
1853         fbdev_panel = panel;
1854         if (fbdev_pdev != NULL)
1855                 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1856 }
1857
1858 /* Called when the device is being detached from the driver */
1859 static int omapfb_remove(struct platform_device *pdev)
1860 {
1861         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1862         enum omapfb_state saved_state = fbdev->state;
1863
1864         /* FIXME: wait till completion of pending events */
1865
1866         fbdev->state = OMAPFB_DISABLED;
1867         omapfb_free_resources(fbdev, saved_state);
1868
1869         platform_device_unregister(&omapdss_device);
1870         fbdev->dssdev = NULL;
1871
1872         return 0;
1873 }
1874
1875 /* PM suspend */
1876 static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
1877 {
1878         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1879
1880         if (fbdev != NULL)
1881                 omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
1882         return 0;
1883 }
1884
1885 /* PM resume */
1886 static int omapfb_resume(struct platform_device *pdev)
1887 {
1888         struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1889
1890         if (fbdev != NULL)
1891                 omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
1892         return 0;
1893 }
1894
1895 static struct platform_driver omapfb_driver = {
1896         .probe          = omapfb_probe,
1897         .remove         = omapfb_remove,
1898         .suspend        = omapfb_suspend,
1899         .resume         = omapfb_resume,
1900         .driver         = {
1901                 .name   = MODULE_NAME,
1902                 .owner  = THIS_MODULE,
1903         },
1904 };
1905
1906 #ifndef MODULE
1907
1908 /* Process kernel command line parameters */
1909 static int __init omapfb_setup(char *options)
1910 {
1911         char *this_opt = NULL;
1912         int r = 0;
1913
1914         pr_debug("omapfb: options %s\n", options);
1915
1916         if (!options || !*options)
1917                 return 0;
1918
1919         while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1920                 if (!strncmp(this_opt, "accel", 5))
1921                         def_accel = 1;
1922                 else if (!strncmp(this_opt, "vram:", 5)) {
1923                         char *suffix;
1924                         unsigned long vram;
1925                         vram = (simple_strtoul(this_opt + 5, &suffix, 0));
1926                         switch (suffix[0]) {
1927                         case '\0':
1928                                 break;
1929                         case 'm':
1930                         case 'M':
1931                                 vram *= 1024;
1932                                 /* Fall through */
1933                         case 'k':
1934                         case 'K':
1935                                 vram *= 1024;
1936                                 break;
1937                         default:
1938                                 pr_debug("omapfb: invalid vram suffix %c\n",
1939                                          suffix[0]);
1940                                 r = -1;
1941                         }
1942                         def_vram[def_vram_cnt++] = vram;
1943                 }
1944                 else if (!strncmp(this_opt, "vxres:", 6))
1945                         def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
1946                 else if (!strncmp(this_opt, "vyres:", 6))
1947                         def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
1948                 else if (!strncmp(this_opt, "rotate:", 7))
1949                         def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
1950                 else if (!strncmp(this_opt, "mirror:", 7))
1951                         def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
1952                 else if (!strncmp(this_opt, "manual_update", 13))
1953                         manual_update = 1;
1954                 else {
1955                         pr_debug("omapfb: invalid option\n");
1956                         r = -1;
1957                 }
1958         }
1959
1960         return r;
1961 }
1962
1963 #endif
1964
1965 /* Register both the driver and the device */
1966 static int __init omapfb_init(void)
1967 {
1968 #ifndef MODULE
1969         char *option;
1970
1971         if (fb_get_options("omapfb", &option))
1972                 return -ENODEV;
1973         omapfb_setup(option);
1974 #endif
1975         /* Register the driver with LDM */
1976         if (platform_driver_register(&omapfb_driver)) {
1977                 pr_debug("failed to register omapfb driver\n");
1978                 return -ENODEV;
1979         }
1980
1981         return 0;
1982 }
1983
1984 static void __exit omapfb_cleanup(void)
1985 {
1986         platform_driver_unregister(&omapfb_driver);
1987 }
1988
1989 module_param_named(accel, def_accel, uint, 0664);
1990 module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
1991 module_param_named(vxres, def_vxres, long, 0664);
1992 module_param_named(vyres, def_vyres, long, 0664);
1993 module_param_named(rotate, def_rotate, uint, 0664);
1994 module_param_named(mirror, def_mirror, uint, 0664);
1995 module_param_named(manual_update, manual_update, bool, 0664);
1996
1997 module_init(omapfb_init);
1998 module_exit(omapfb_cleanup);
1999
2000 MODULE_DESCRIPTION("TI OMAP framebuffer driver");
2001 MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
2002 MODULE_LICENSE("GPL");