drivers/video/omap/omapfb_main.c

   1 /*
   2  * File: drivers/video/omap/omapfb_main.c
   3  *
   4  * Framebuffer driver for TI OMAP boards
   5  *
   6  * Copyright (C) 2004 Nokia Corporation
   7  * Author: Imre Deak <imre.deak@nokia.com>
   8  *
   9  * Acknowledgements:
  10  *   Alex McMains <aam@ridgerun.com>       - Original driver
  11  *   Juha Yrjola <juha.yrjola@nokia.com>   - Original driver and improvements
  12  *   Dirk Behme <dirk.behme@de.bosch.com>  - changes for 2.6 kernel API
  13  *   Texas Instruments                     - H3 support
  14  *
  15  * This program is free software; you can redistribute it and/or modify it
  16  * under the terms of the GNU General Public License as published by the
  17  * Free Software Foundation; either version 2 of the License, or (at your
  18  * option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful, but
  21  * WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  23  * General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License along
  26  * with this program; if not, write to the Free Software Foundation, Inc.,
  27  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  28  */
  29
  30 #include <linux/config.h>
  31 #include <linux/module.h>
  32 #include <linux/mm.h>
  33 #include <linux/init.h>
  34 #include <linux/delay.h>
  35 #include <linux/device.h>
  36 #include <linux/dma-mapping.h>
  37
  38 #include <asm/uaccess.h>
  39 #include <asm/atomic.h>
  40 #include <asm/mach-types.h>
  41
  42 #include <asm/arch/dma.h>
  43 #include <asm/arch/irqs.h>
  44 #include <asm/arch/mux.h>
  45 #include <asm/arch/board.h>
  46 #include <asm/arch/omapfb.h>
  47
  48 /* #define OMAPFB_DBG 1 */
  49
  50 #include "debug.h"
  51
  52 #define OMAPFB_DRIVER   "omapfb"
  53 #define MODULE_NAME     "omapfb"
  54
  55 #define pr_err(fmt, args...) printk(KERN_ERR MODULE_NAME ": " fmt, ## args)
  56
  57 static unsigned int     def_accel;
  58 static unsigned long    def_vram;
  59 static unsigned long    def_vxres;
  60 static unsigned long    def_vyres;
  61 static unsigned int     def_rotate;
  62 static unsigned int     def_mirror;
  63
  64 #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
  65 static int              manual_update = 1;
  66 #else
  67 static int              manual_update;
  68 #endif
  69
  70 static struct caps_table_struct {
  71         unsigned long flag;
  72         const char *name;
  73 } omapfb_caps_table[] = {
  74         { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" },
  75         { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" },
  76 };
  77
  78 /*
  79  * ---------------------------------------------------------------------------
  80  * LCD panel
  81  * ---------------------------------------------------------------------------
  82  */
  83 extern struct lcd_panel h4_panel;
  84 extern struct lcd_panel h3_panel;
  85 extern struct lcd_panel h2_panel;
  86 extern struct lcd_panel p2_panel;
  87 extern struct lcd_panel osk_panel;
  88 extern struct lcd_panel palmte_panel;
  89 extern struct lcd_panel innovator1610_panel;
  90 extern struct lcd_panel innovator1510_panel;
  91 extern struct lcd_panel lph8923_panel;
  92
  93 static struct lcd_panel *panels[] = {
  94 #ifdef CONFIG_MACH_OMAP_H2
  95         &h2_panel,
  96 #endif
  97 #ifdef CONFIG_MACH_OMAP_H3
  98         &h3_panel,
  99 #endif
 100 #ifdef CONFIG_MACH_OMAP_H4
 101         &h4_panel,
 102 #endif
 103 #ifdef CONFIG_MACH_OMAP_PERSEUS2
 104         &p2_panel,
 105 #endif
 106 #ifdef CONFIG_MACH_OMAP_OSK
 107         &osk_panel,
 108 #endif
 109 #ifdef CONFIG_MACH_OMAP_PALMTE
 110         &palmte_panel,
 111 #endif
 112
 113 #ifdef CONFIG_MACH_OMAP_INNOVATOR
 114
 115 #ifdef CONFIG_ARCH_OMAP15XX
 116         &innovator1510_panel,
 117 #endif
 118 #ifdef CONFIG_ARCH_OMAP16XX
 119         &innovator1610_panel,
 120 #endif
 121
 122 #endif
 123 };
 124
 125 extern struct lcd_ctrl omap1_int_ctrl;
 126 extern struct lcd_ctrl omap2_int_ctrl;
 127 extern struct lcd_ctrl hwa742_ctrl;
 128 extern struct lcd_ctrl blizzard_ctrl;
 129
 130 static struct lcd_ctrl *ctrls[] = {
 131 #ifdef CONFIG_FB_OMAP_LCDC_INTERNAL
 132 #ifdef CONFIG_ARCH_OMAP1
 133         &omap1_int_ctrl,
 134 #else
 135         &omap2_int_ctrl,
 136 #endif
 137 #endif
 138 };
 139
 140 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
 141 #ifdef CONFIG_ARCH_OMAP1
 142 extern struct lcd_ctrl_extif sossi_extif;
 143 #else
 144 extern struct lcd_ctrl_extif rfbi_extif;
 145 #endif
 146 #endif
 147
 148 static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
 149 {
 150         down(&fbdev->rqueue_sema);
 151 }
 152
 153 static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
 154 {
 155         up(&fbdev->rqueue_sema);
 156 }
 157
 158 /*
 159  * ---------------------------------------------------------------------------
 160  * LCD controller and LCD DMA
 161  * ---------------------------------------------------------------------------
 162  */
 163 /* Lookup table to map elem size to elem type. */
 164 static const int dma_elem_type[] = {
 165         0,
 166         OMAP_DMA_DATA_TYPE_S8,
 167         OMAP_DMA_DATA_TYPE_S16,
 168         0,
 169         OMAP_DMA_DATA_TYPE_S32,
 170 };
 171
 172 /* Allocate resources needed for LCD controller and LCD DMA operations. Video
 173  * memory is allocated from system memory according to the virtual display
 174  * size, except if a bigger memory size is specified explicitly as a kernel
 175  * parameter.
 176  */
 177 static int ctrl_init(struct omapfb_device *fbdev)
 178 {
 179         int r;
 180
 181         DBGENTER(1);
 182
 183         r = fbdev->ctrl->init(fbdev, 0, def_vram);
 184         if (r < 0) {
 185                 pr_err("controller initialization failed\n");
 186                 goto exit;
 187         }
 188
 189         fbdev->ctrl->get_vram_layout(&fbdev->vram_size, &fbdev->vram_virt_base,
 190                                      &fbdev->vram_phys_base);
 191         memset((void *)fbdev->vram_virt_base, 0, fbdev->vram_size);
 192
 193         DBGPRINT(1, "vram_phys %08x vram_virt %p vram_size=%lu\n",
 194                  fbdev->vram_phys_base, fbdev->vram_virt_base,
 195                  fbdev->vram_size);
 196
 197         DBGLEAVE(1);
 198         return 0;
 199 exit:
 200         DBGLEAVE(1);
 201         return r;
 202 }
 203
 204 static void ctrl_cleanup(struct omapfb_device *fbdev)
 205 {
 206         fbdev->ctrl->cleanup();
 207 }
 208
 209 static int ctrl_change_mode(struct omapfb_device *fbdev)
 210 {
 211         int r;
 212         unsigned long offset;
 213         struct fb_var_screeninfo *var = &fbdev->fb_info->var;
 214
 215         DBGPRINT(1, "xoffset %d yoffset %d line_length %d bits_per_pixel %d\n",
 216                 var->xoffset, var->yoffset, fbdev->fb_info->fix.line_length,
 217                 var->bits_per_pixel);
 218         offset = var->yoffset * fbdev->fb_info->fix.line_length +
 219                  var->xoffset * var->bits_per_pixel / 8;
 220         r = fbdev->ctrl->setup_plane(OMAPFB_PLANE_GFX, OMAPFB_CHANNEL_OUT_LCD,
 221                                  offset, var->xres_virtual, 0, 0, var->xres,
 222                                  var->yres, fbdev->color_mode);
 223         DBGLEAVE(1);
 224
 225         return r;
 226 }
 227
 228 /*
 229  * ---------------------------------------------------------------------------
 230  * fbdev framework callbacks and the ioctl interface
 231  * ---------------------------------------------------------------------------
 232  */
 233 /* Called each time the omapfb device is opened */
 234 static int omapfb_open(struct fb_info *info, int user)
 235 {
 236         DBGENTER(1);
 237         DBGLEAVE(1);
 238         return 0;
 239 }
 240
 241 static void omapfb_sync(struct fb_info *info);
 242
 243 /* Called when the omapfb device is closed. We make sure that any pending
 244  * gfx DMA operations are ended, before we return. */
 245 static int omapfb_release(struct fb_info *info, int user)
 246 {
 247         DBGENTER(1);
 248
 249         omapfb_sync(info);
 250
 251         DBGLEAVE(1);
 252         return 0;
 253 }
 254
 255 /* Store a single color palette entry into a pseudo palette or the hardware
 256  * palette if one is available. For now we support only 16bpp and thus store
 257  * the entry only to the pseudo palette.
 258  */
 259 static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
 260                         u_int blue, u_int transp, int update_hw_pal)
 261 {
 262         struct omapfb_device *fbdev = (struct omapfb_device *)info->par;
 263         int r = 0;
 264
 265         switch (fbdev->color_mode) {
 266         case OMAPFB_COLOR_YUV422:
 267         case OMAPFB_COLOR_YUV420:
 268                 r = -EINVAL;
 269                 break;
 270         case OMAPFB_COLOR_CLUT_8BPP:
 271         case OMAPFB_COLOR_CLUT_4BPP:
 272         case OMAPFB_COLOR_CLUT_2BPP:
 273         case OMAPFB_COLOR_CLUT_1BPP:
 274                 if (fbdev->ctrl->setcolreg)
 275                         r = fbdev->ctrl->setcolreg(regno, red, green, blue,
 276                                                         transp, update_hw_pal);
 277                 /* Fallthrough */
 278         case OMAPFB_COLOR_RGB565:
 279                 if (r != 0)
 280                         break;
 281
 282                 if (regno < 0) {
 283                         r = -EINVAL;
 284                         break;
 285                 }
 286
 287                 if (regno < 16) {
 288                         u16 pal;
 289                         pal = ((red >> 11) << 11) | ((green >> 10) << 5) |
 290                                 (blue >> 11);
 291                         ((u32 *)(info->pseudo_palette))[regno] = pal;
 292                 }
 293                 break;
 294         default:
 295                 BUG();
 296         }
 297         return r;
 298 }
 299
 300 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 301                             u_int transp, struct fb_info *info)
 302 {
 303         int r = 0;
 304
 305         DBGENTER(2);
 306
 307         _setcolreg(info, regno, red, green, blue, transp, 1);
 308
 309         DBGLEAVE(2);
 310
 311         return r;
 312 }
 313
 314 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
 315 {
 316         int count, index, r;
 317         u16 *red, *green, *blue, *transp;
 318         u16 trans = 0xffff;
 319
 320         red     = cmap->red;
 321         green   = cmap->green;
 322         blue    = cmap->blue;
 323         transp  = cmap->transp;
 324         index   = cmap->start;
 325
 326         for (count = 0; count < cmap->len; count++) {
 327                 if (transp)
 328                         trans = *transp++;
 329                 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
 330                                 count == cmap->len - 1);
 331                 if (r != 0)
 332                         return r;
 333         }
 334
 335         return 0;
 336 }
 337
 338
 339 static void omapfb_update_full_screen(struct omapfb_device *fbdev);
 340
 341 static int omapfb_blank(int blank, struct fb_info *fbi)
 342 {
 343         struct omapfb_device *fbdev = (struct omapfb_device *)fbi->par;
 344         int r = 0;
 345
 346         DBGENTER(1);
 347
 348         omapfb_rqueue_lock(fbdev);
 349         switch (blank) {
 350         case VESA_NO_BLANKING:
 351                 if (fbdev->state == OMAPFB_SUSPENDED) {
 352                         fbdev->panel->enable();
 353                         if (fbdev->ctrl->resume)
 354                                 fbdev->ctrl->resume();
 355                         fbdev->state = OMAPFB_ACTIVE;
 356                         if (fbdev->ctrl->get_update_mode() ==
 357                                         OMAPFB_MANUAL_UPDATE)
 358                                 omapfb_update_full_screen(fbdev);
 359                 }
 360                 break;
 361         case VESA_POWERDOWN:
 362                 if (fbdev->state == OMAPFB_ACTIVE) {
 363                         if (fbdev->ctrl->suspend)
 364                                 fbdev->ctrl->suspend();
 365                         fbdev->panel->disable();
 366                         fbdev->state = OMAPFB_SUSPENDED;
 367                 }
 368                 break;
 369         default:
 370                 r = -EINVAL;
 371         }
 372         omapfb_rqueue_unlock(fbdev);
 373
 374         DBGLEAVE(1);
 375         return r;
 376 }
 377
 378 static void omapfb_sync(struct fb_info *fbi)
 379 {
 380         struct omapfb_device *fbdev = (struct omapfb_device *)fbi->par;
 381
 382         omapfb_rqueue_lock(fbdev);
 383         if (fbdev->ctrl->sync)
 384                 fbdev->ctrl->sync();
 385         omapfb_rqueue_unlock(fbdev);
 386 }
 387
 388 /* Set fb_info.fix fields and also updates fbdev.
 389  * When calling this fb_info.var must be set up already.
 390  */
 391 static void set_fb_fix(struct omapfb_device *fbdev)
 392 {
 393         struct fb_info           *fbi = fbdev->fb_info;
 394         struct fb_fix_screeninfo *fix = &fbi->fix;
 395         struct fb_var_screeninfo *var = &fbi->var;
 396
 397         strncpy(fix->id, OMAPFB_DRIVER, sizeof(fix->id));
 398         fix->type = FB_TYPE_PACKED_PIXELS;
 399         switch (var->bits_per_pixel) {
 400         case 16:
 401                 fix->visual = FB_VISUAL_TRUECOLOR;
 402                 break;
 403         case 1:
 404         case 2:
 405         case 4:
 406         case 8:
 407                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 408                 break;
 409         }
 410         fix->accel              = FB_ACCEL_OMAP1610;
 411         fix->line_length        = var->xres_virtual * var->bits_per_pixel / 8;
 412         fix->smem_len           = fbdev->vram_size;
 413         fix->smem_start         = fbdev->vram_phys_base;
 414 }
 415
 416 /* Check the values in var against our capabilities and in case of out of
 417  * bound values try to adjust them.
 418  */
 419 static int set_fb_var(struct omapfb_device *fbdev,
 420                       struct fb_var_screeninfo *var)
 421 {
 422         int             bpp;
 423         unsigned long   max_frame_size;
 424         unsigned long   line_size;
 425         struct lcd_panel *panel = fbdev->panel;
 426
 427         bpp = var->bits_per_pixel = panel->bpp;
 428
 429         switch (bpp) {
 430         case 16:
 431                 fbdev->color_mode = OMAPFB_COLOR_RGB565;
 432                 break;
 433         case 8:
 434                 fbdev->color_mode = OMAPFB_COLOR_CLUT_8BPP;
 435                 break;
 436         default:
 437                 /* FIXME: other BPPs not yet supported */
 438                 return -EINVAL;
 439         }
 440
 441         switch (var->rotate) {
 442         case 0:
 443         case 180:
 444                 var->xres = fbdev->panel->x_res;
 445                 var->yres = fbdev->panel->y_res;
 446                 break;
 447         case 90:
 448         case 270:
 449                 var->xres = fbdev->panel->y_res;
 450                 var->yres = fbdev->panel->x_res;
 451                 break;
 452         default:
 453                 return -EINVAL;
 454         }
 455         if (var->xres_virtual < var->xres)
 456                 var->xres_virtual = var->xres;
 457         if (var->yres_virtual < var->yres)
 458                 var->yres_virtual = var->yres;
 459         max_frame_size = fbdev->vram_size;
 460         line_size = var->xres_virtual * bpp / 8;
 461         if (line_size * var->yres_virtual > max_frame_size) {
 462                 /* Try to keep yres_virtual first */
 463                 line_size = max_frame_size / var->yres_virtual;
 464                 var->xres_virtual = line_size * 8 / bpp;
 465                 if (var->xres_virtual < var->xres) {
 466                         /* Still doesn't fit. Shrink yres_virtual too */
 467                         var->xres_virtual = var->xres;
 468                         line_size = var->xres * bpp / 8;
 469                         var->yres_virtual = max_frame_size / line_size;
 470                 }
 471         }
 472         if (var->xres + var->xoffset > var->xres_virtual)
 473                 var->xoffset = var->xres_virtual - var->xres;
 474         if (var->yres + var->yoffset > var->yres_virtual)
 475                 var->yoffset = var->yres_virtual - var->yres;
 476         line_size = var->xres * bpp / 8;
 477
 478         var->red.offset  = 11; var->red.length   = 5; var->red.msb_right   = 0;
 479         var->green.offset= 5;  var->green.length = 6; var->green.msb_right = 0;
 480         var->blue.offset = 0;  var->blue.length  = 5; var->blue.msb_right  = 0;
 481
 482         var->height             = -1;
 483         var->width              = -1;
 484         var->grayscale          = 0;
 485         var->nonstd             = 0;
 486
 487         /* pixclock in ps, the rest in pixclock */
 488         var->pixclock           = 10000000 / (panel->pixel_clock / 100);
 489         var->left_margin        = panel->hfp;
 490         var->right_margin       = panel->hbp;
 491         var->upper_margin       = panel->vfp;
 492         var->lower_margin       = panel->vbp;
 493         var->hsync_len          = panel->hsw;
 494         var->vsync_len          = panel->vsw;
 495
 496         /* TODO: get these from panel->config */
 497         var->vmode              = FB_VMODE_NONINTERLACED;
 498         var->sync               = 0;
 499
 500         return 0;
 501 }
 502
 503 static struct fb_var_screeninfo new_var;
 504
 505 /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
 506 static void omapfb_rotate(struct fb_info *fbi, int rotate)
 507 {
 508         struct omapfb_device *fbdev = (struct omapfb_device *)fbi->par;
 509
 510         DBGENTER(1);
 511
 512         if (cpu_is_omap1510() && rotate != fbdev->fb_info->var.rotate) {
 513                 memcpy(&new_var, &fbi->var, sizeof(new_var));
 514                 new_var.rotate = rotate;
 515                 if (set_fb_var(fbdev, &new_var) == 0 &&
 516                     memcmp(&new_var, &fbi->var, sizeof(new_var))) {
 517                         memcpy(&fbi->var, &new_var, sizeof(new_var));
 518                         ctrl_change_mode(fbdev);
 519                 }
 520         }
 521
 522         DBGLEAVE(1);
 523 }
 524
 525 /* Set new x,y offsets in the virtual display for the visible area and switch
 526  * to the new mode.
 527  */
 528 static int omapfb_pan_display(struct fb_var_screeninfo *var,
 529                                struct fb_info *fbi)
 530 {
 531         struct omapfb_device *fbdev = (struct omapfb_device *)fbi->par;
 532         int r = 0;
 533
 534         DBGENTER(1);
 535
 536         if (var->xoffset != fbi->var.xoffset ||
 537             var->yoffset != fbi->var.yoffset) {
 538                 memcpy(&new_var, &fbi->var, sizeof(new_var));
 539                 new_var.xoffset = var->xoffset;
 540                 new_var.yoffset = var->yoffset;
 541                 if (set_fb_var(fbdev, &new_var))
 542                         r = -EINVAL;
 543                 else {
 544                         memcpy(&fbi->var, &new_var, sizeof(new_var));
 545                         ctrl_change_mode(fbdev);
 546                 }
 547         }
 548
 549         DBGLEAVE(1);
 550         return r;
 551 }
 552
 553 /* Set mirror to vertical axis and switch to the new mode. */
 554 static int omapfb_mirror(struct omapfb_device *fbdev, int mirror)
 555 {
 556         int r = 0;
 557
 558         DBGENTER(1);
 559
 560         mirror = mirror ? 1 : 0;
 561         if (cpu_is_omap1510())
 562                 r = -EINVAL;
 563         else if (mirror != fbdev->mirror) {
 564                 fbdev->mirror = mirror;
 565                 r = ctrl_change_mode(fbdev);
 566         }
 567
 568         DBGLEAVE(1);
 569         return r;
 570 }
 571
 572 /* Check values in var, try to adjust them in case of out of bound values if
 573  * possible, or return error.
 574  */
 575 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 576 {
 577         struct omapfb_device *fbdev = (struct omapfb_device *)fbi->par;
 578         int r;
 579
 580         DBGENTER(1);
 581
 582         r = set_fb_var(fbdev, var);
 583
 584         DBGLEAVE(1);
 585         return r;
 586 }
 587
 588 /* Switch to a new mode. The parameters for it has been check already by
 589  * omapfb_check_var.
 590  */
 591 static int omapfb_set_par(struct fb_info *fbi)
 592 {
 593         int r;
 594         struct omapfb_device *fbdev = (struct omapfb_device *)fbi->par;
 595
 596         DBGENTER(1);
 597
 598         set_fb_fix(fbdev);
 599         r = ctrl_change_mode(fbdev);
 600
 601         DBGLEAVE(1);
 602         return r;
 603 }
 604
 605 static int omapfb_update_win(struct omapfb_device *fbdev,
 606                                 struct omapfb_update_window *win)
 607 {
 608         struct fb_var_screeninfo *var = &fbdev->fb_info->var;
 609         int ret;
 610
 611         if (win->x >= var->xres || win->y >= var->yres)
 612                 return -EINVAL;
 613
 614         if (!fbdev->ctrl->update_window ||
 615             fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
 616                 return -ENODEV;
 617
 618         if (win->x + win->width >= var->xres)
 619                 win->width = var->xres - win->x;
 620         if (win->y + win->height >= var->yres)
 621                 win->height = var->yres - win->y;
 622         if (!win->width || !win->height)
 623                 return 0;
 624
 625         omapfb_rqueue_lock(fbdev);
 626         ret = fbdev->ctrl->update_window(win, NULL, 0);
 627         omapfb_rqueue_unlock(fbdev);
 628
 629         return ret;
 630 }
 631
 632 static void omapfb_update_full_screen(struct omapfb_device *fbdev)
 633 {
 634         struct omapfb_update_window win;
 635
 636         win.x = 0;
 637         win.y = 0;
 638         win.width = fbdev->panel->x_res;
 639         win.height = fbdev->panel->y_res;
 640         win.format = 0;
 641
 642         omapfb_rqueue_lock(fbdev);
 643         fbdev->ctrl->update_window(&win, NULL, 0);
 644         omapfb_rqueue_unlock(fbdev);
 645 }
 646
 647 static int omapfb_setup_plane(struct omapfb_device *fbdev,
 648                               struct omapfb_setup_plane *sp)
 649 {
 650         int r;
 651
 652         omapfb_rqueue_lock(fbdev);
 653         r = fbdev->ctrl->setup_plane(sp->plane, sp->channel_out, sp->offset,
 654                                  sp->width, sp->pos_x, sp->pos_y, sp->width,
 655                                  sp->height, sp->color_mode);
 656         omapfb_rqueue_unlock(fbdev);
 657
 658         return r;
 659 }
 660
 661 static int omapfb_enable_plane(struct omapfb_device *fbdev, int plane,
 662                                 int enable)
 663 {
 664         int r;
 665
 666         omapfb_rqueue_lock(fbdev);
 667         r = fbdev->ctrl->enable_plane(plane, enable);
 668         omapfb_rqueue_unlock(fbdev);
 669
 670         return r;
 671 }
 672
 673 static int omapfb_set_color_key(struct omapfb_device *fbdev,
 674                                 struct omapfb_color_key *ck)
 675 {
 676         int r;
 677
 678         if (!fbdev->ctrl->set_color_key)
 679                 return -ENODEV;
 680
 681         omapfb_rqueue_lock(fbdev);
 682         r = fbdev->ctrl->set_color_key(ck);
 683         omapfb_rqueue_unlock(fbdev);
 684
 685         return r;
 686 }
 687
 688 static int omapfb_set_update_mode(struct omapfb_device *fbdev,
 689                                    enum omapfb_update_mode mode)
 690 {
 691         int r;
 692
 693         omapfb_rqueue_lock(fbdev);
 694         r = fbdev->ctrl->set_update_mode(mode);
 695         omapfb_rqueue_unlock(fbdev);
 696
 697         return r;
 698 }
 699
 700 static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
 701 {
 702         int r;
 703
 704         omapfb_rqueue_lock(fbdev);
 705         r = fbdev->ctrl->get_update_mode();
 706         omapfb_rqueue_unlock(fbdev);
 707
 708         return r;
 709 }
 710
 711 static unsigned long omapfb_get_caps(struct fb_info *fbi)
 712 {
 713         struct omapfb_device *fbdev = (struct omapfb_device *)fbi->par;
 714         unsigned long caps;
 715
 716         caps = 0;
 717         caps |= fbdev->panel->get_caps();
 718         caps |= fbdev->ctrl->get_caps();
 719         return caps;
 720 }
 721
 722 /* For lcd testing */
 723 void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
 724 {
 725         omapfb_rqueue_lock(fbdev);
 726         *(u16 *)fbdev->vram_virt_base = pixval;
 727         if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
 728                 struct omapfb_update_window win;
 729
 730                 win.x = 0;
 731                 win.y = 0;
 732                 win.width = 1;
 733                 win.height = 1;
 734                 win.format = 0;
 735                 fbdev->ctrl->update_window(&win, NULL, 0);
 736         }
 737         omapfb_rqueue_unlock(fbdev);
 738 }
 739 EXPORT_SYMBOL(omapfb_write_first_pixel);
 740
 741 /* Ioctl interface. Part of the kernel mode frame buffer API is duplicated
 742  * here to be accessible by user mode code. In addition transparent copy
 743  * graphics transformations, frame flipping support is provided through this
 744  * interface.
 745  */
 746 static int omapfb_ioctl(struct inode *inode, struct file *file,
 747                         unsigned int cmd, unsigned long arg,
 748                         struct fb_info *fbi)
 749 {
 750         struct omapfb_device    *fbdev = (struct omapfb_device *)fbi->par;
 751         struct fb_ops           *ops = fbi->fbops;
 752         union {
 753                 struct omapfb_update_window     update_window;
 754                 struct omapfb_setup_plane       setup_plane;
 755                 struct omapfb_enable_plane      enable_plane;
 756                 struct omapfb_color_key         color_key;
 757                 enum omapfb_update_mode         update_mode;
 758                 unsigned long           caps;
 759                 unsigned int            mirror;
 760         } p;
 761         int r = 0;
 762
 763         DBGENTER(2);
 764
 765         BUG_ON(!ops);
 766         DBGPRINT(2, "cmd=%010x\n", cmd);
 767         switch (cmd)
 768         {
 769         case OMAPFB_MIRROR:
 770                 if (get_user(p.mirror, (int __user *)arg))
 771                         r = -EFAULT;
 772                 else
 773                         omapfb_mirror(fbdev, p.mirror);
 774                 break;
 775         case OMAPFB_SYNC_GFX:
 776                 omapfb_sync(fbi);
 777                 break;
 778         case OMAPFB_VSYNC:
 779                 break;
 780         case OMAPFB_SET_UPDATE_MODE:
 781                 if (get_user(p.update_mode, (int __user *)arg))
 782                         r = -EFAULT;
 783                 else
 784                         r = omapfb_set_update_mode(fbdev, p.update_mode);
 785                 break;
 786         case OMAPFB_GET_UPDATE_MODE:
 787                 p.update_mode = omapfb_get_update_mode(fbdev);
 788                 if (put_user(p.update_mode,
 789                                         (enum omapfb_update_mode __user *)arg))
 790                         r = -EFAULT;
 791                 break;
 792         case OMAPFB_UPDATE_WINDOW:
 793                 if (copy_from_user(&p.update_window, (void __user *)arg,
 794                                    sizeof(p.update_window)))
 795                         r = -EFAULT;
 796                 else
 797                         r = omapfb_update_win(fbdev, &p.update_window);
 798                 break;
 799         case OMAPFB_SETUP_PLANE:
 800                 if (copy_from_user(&p.setup_plane, (void __user *)arg,
 801                                    sizeof(p.setup_plane)))
 802                         r = -EFAULT;
 803                 else
 804                         r = omapfb_setup_plane(fbdev, &p.setup_plane);
 805                 break;
 806         case OMAPFB_ENABLE_PLANE:
 807                 if (copy_from_user(&p.enable_plane, (void __user *)arg,
 808                                    sizeof(p.enable_plane)))
 809                         r = -EFAULT;
 810                 else
 811                         r = omapfb_enable_plane(fbdev,
 812                                 p.enable_plane.plane, p.enable_plane.enable);
 813                 break;
 814         case OMAPFB_SET_COLOR_KEY:
 815                 if (copy_from_user(&p.color_key, (void __user *)arg,
 816                                    sizeof(p.color_key)))
 817                         r = -EFAULT;
 818                 else
 819                         r = omapfb_set_color_key(fbdev, &p.color_key);
 820                 break;
 821         case OMAPFB_GET_CAPS:
 822                 p.caps = omapfb_get_caps(fbi);
 823                 if (put_user(p.caps, (unsigned long __user *)arg))
 824                         r = -EFAULT;
 825                 break;
 826         case OMAPFB_LCD_TEST:
 827                 {
 828                         int test_num;
 829
 830                         if (get_user(test_num, (int __user *)arg)) {
 831                                 r = -EFAULT;
 832                                 break;
 833                         }
 834                         if (!fbdev->panel->run_test) {
 835                                 r = -EINVAL;
 836                                 break;
 837                         }
 838                         r = fbdev->panel->run_test(test_num);
 839                         break;
 840                 }
 841         case OMAPFB_CTRL_TEST:
 842                 {
 843                         int test_num;
 844
 845                         if (get_user(test_num, (int __user *)arg)) {
 846                                 r = -EFAULT;
 847                                 break;
 848                         }
 849                         if (!fbdev->ctrl->run_test) {
 850                                 r = -EINVAL;
 851                                 break;
 852                         }
 853                         r = fbdev->ctrl->run_test(test_num);
 854                         break;
 855                 }
 856         default:
 857                 r = -EINVAL;
 858         }
 859
 860         DBGLEAVE(2);
 861         return r;
 862 }
 863
 864 /* Callback table for the frame buffer framework. Some of these pointers
 865  * will be changed according to the current setting of fb_info->accel_flags.
 866  */
 867 static struct fb_ops omapfb_ops = {
 868         .owner          = THIS_MODULE,
 869         .fb_open        = omapfb_open,
 870         .fb_release     = omapfb_release,
 871         .fb_setcolreg   = omapfb_setcolreg,
 872         .fb_setcmap     = omapfb_setcmap,
 873         .fb_fillrect    = cfb_fillrect,
 874         .fb_copyarea    = cfb_copyarea,
 875         .fb_imageblit   = cfb_imageblit,
 876         .fb_cursor      = soft_cursor,
 877         .fb_blank       = omapfb_blank,
 878         .fb_ioctl       = omapfb_ioctl,
 879         .fb_check_var   = omapfb_check_var,
 880         .fb_set_par     = omapfb_set_par,
 881         .fb_rotate      = omapfb_rotate,
 882         .fb_pan_display = omapfb_pan_display,
 883 };
 884
 885 /*
 886  * ---------------------------------------------------------------------------
 887  * Sysfs interface
 888  * ---------------------------------------------------------------------------
 889  */
 890 /* omapfbX sysfs entries */
 891 static ssize_t omapfb_show_caps_num(struct device *dev, struct device_attribute *attr, char *buf)
 892 {
 893         struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
 894
 895         return snprintf(buf, PAGE_SIZE, "%#010lx\n",
 896                 omapfb_get_caps(fbdev->fb_info));
 897 }
 898
 899 static ssize_t omapfb_show_caps_text(struct device *dev, struct device_attribute *attr, char *buf)
 900 {
 901         struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
 902         int pos = 0;
 903         int i;
 904         unsigned long caps;
 905
 906         caps = omapfb_get_caps(fbdev->fb_info);
 907         for (i = 0; i < ARRAY_SIZE(omapfb_caps_table) && pos < PAGE_SIZE; i++) {
 908                 if (omapfb_caps_table[i].flag & caps) {
 909                         pos += snprintf(&buf[pos], PAGE_SIZE - pos, "%s\n",
 910                                         omapfb_caps_table[i].name);
 911                 }
 912         }
 913         return min((int)PAGE_SIZE, pos);
 914 }
 915
 916 static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
 917 static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
 918
 919 /* panel sysfs entries */
 920 static ssize_t omapfb_show_panel_name(struct device *dev,
 921                                       struct device_attribute *attr, char *buf)
 922 {
 923         struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
 924
 925         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
 926 }
 927
 928 static ssize_t omapfb_show_bklight_level(struct device *dev,
 929                                          struct device_attribute *attr,
 930                                          char *buf)
 931 {
 932         struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
 933         int r;
 934
 935         if (fbdev->panel->get_bklight_level) {
 936                 r = snprintf(buf, PAGE_SIZE, "%d\n",
 937                              fbdev->panel->get_bklight_level());
 938         } else
 939                 r = -ENODEV;
 940         return r;
 941 }
 942
 943 static ssize_t omapfb_store_bklight_level(struct device *dev,
 944                                           struct device_attribute *attr,
 945                                           const char *buf, size_t size)
 946 {
 947         struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
 948         int r;
 949
 950         if (fbdev->panel->set_bklight_level) {
 951                 unsigned int level;
 952
 953                 if (sscanf(buf, "%10d", &level) == 1) {
 954                         r = fbdev->panel->set_bklight_level(level);
 955                 } else
 956                         r = -EINVAL;
 957         } else
 958                 r = -ENODEV;
 959         return r ? r : size;
 960 }
 961
 962 static ssize_t omapfb_show_bklight_max(struct device *dev,
 963                                        struct device_attribute *attr, char *buf)
 964 {
 965         struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
 966         int r;
 967
 968         if (fbdev->panel->get_bklight_level) {
 969                 r = snprintf(buf, PAGE_SIZE, "%d\n",
 970                              fbdev->panel->get_bklight_max());
 971         } else
 972                 r = -ENODEV;
 973         return r;
 974 }
 975
 976 static struct device_attribute dev_attr_panel_name =
 977         __ATTR(name, 0444, omapfb_show_panel_name, NULL);
 978 static DEVICE_ATTR(backlight_level, 0664,
 979                    omapfb_show_bklight_level, omapfb_store_bklight_level);
 980 static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
 981
 982 static struct attribute *panel_attrs[] = {
 983         &dev_attr_panel_name.attr,
 984         &dev_attr_backlight_level.attr,
 985         &dev_attr_backlight_max.attr,
 986         NULL,
 987 };
 988
 989 static struct attribute_group panel_attr_grp = {
 990         .name  = "panel",
 991         .attrs = panel_attrs,
 992 };
 993
 994 /* ctrl sysfs entries */
 995 static ssize_t omapfb_show_ctrl_name(struct device *dev,
 996                                      struct device_attribute *attr, char *buf)
 997 {
 998         struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
 999
1000         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
1001 }
1002
1003 static struct device_attribute dev_attr_ctrl_name =
1004         __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
1005
1006 static struct attribute *ctrl_attrs[] = {
1007         &dev_attr_ctrl_name.attr,
1008         NULL,
1009 };
1010
1011 static struct attribute_group ctrl_attr_grp = {
1012         .name  = "ctrl",
1013         .attrs = ctrl_attrs,
1014 };
1015
1016 static int omapfb_register_sysfs(struct omapfb_device *fbdev)
1017 {
1018         int r;
1019
1020         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
1021                 goto fail0;
1022
1023         if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
1024                 goto fail1;
1025
1026         if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
1027                 goto fail2;
1028
1029         if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
1030                 goto fail3;
1031
1032         return 0;
1033 fail3:
1034         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1035 fail2:
1036         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1037 fail1:
1038         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1039 fail0:
1040         pr_err("unable to register sysfs interface\n");
1041         return r;
1042 }
1043
1044 static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
1045 {
1046         sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
1047         sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1048         device_remove_file(fbdev->dev, &dev_attr_caps_num);
1049         device_remove_file(fbdev->dev, &dev_attr_caps_text);
1050 }
1051
1052 /*
1053  * ---------------------------------------------------------------------------
1054  * LDM callbacks
1055  * ---------------------------------------------------------------------------
1056  */
1057 /* Initialize system fb_info object and set the default video mode.
1058  * The frame buffer memory already allocated by lcddma_init
1059  */
1060 static int fbinfo_init(struct omapfb_device *fbdev)
1061 {
1062         struct fb_info                  *info = fbdev->fb_info;
1063         struct fb_var_screeninfo        *var = &info->var;
1064         int                             r = 0;
1065
1066         DBGENTER(1);
1067
1068         BUG_ON(!fbdev->vram_virt_base);
1069
1070         info->fbops = &omapfb_ops;
1071         info->flags = FBINFO_FLAG_DEFAULT;
1072         info->screen_base = (char __iomem *)fbdev->vram_virt_base;
1073
1074         info->pseudo_palette = fbdev->pseudo_palette;
1075
1076         var->accel_flags  = def_accel ? FB_ACCELF_TEXT : 0;
1077         var->xres_virtual = def_vxres;
1078         var->yres_virtual = def_vyres;
1079         var->rotate       = def_rotate;
1080
1081         fbdev->mirror = def_mirror;
1082
1083         set_fb_var(fbdev, var);
1084         set_fb_fix(fbdev);
1085
1086         r = fb_alloc_cmap(&info->cmap, 16, 0);
1087         if (r != 0)
1088                 pr_err("unable to allocate color map memory\n");
1089
1090         DBGLEAVE(1);
1091         return r;
1092 }
1093
1094 /* Release the fb_info object */
1095 static void fbinfo_cleanup(struct omapfb_device *fbdev)
1096 {
1097         DBGENTER(1);
1098
1099         fb_dealloc_cmap(&fbdev->fb_info->cmap);
1100
1101         DBGLEAVE(1);
1102 }
1103
1104 /* Free driver resources. Can be called to rollback an aborted initialization
1105  * sequence.
1106  */
1107 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
1108 {
1109         switch (state) {
1110         case OMAPFB_ACTIVE:
1111                 unregister_framebuffer(fbdev->fb_info);
1112         case 6:
1113                 omapfb_unregister_sysfs(fbdev);
1114                 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1115         case 5:
1116                 fbdev->panel->disable();
1117         case 4:
1118                 fbinfo_cleanup(fbdev);
1119         case 3:
1120                 ctrl_cleanup(fbdev);
1121         case 2:
1122                 fbdev->panel->cleanup();
1123         case 1:
1124                 dev_set_drvdata(fbdev->dev, NULL);
1125                 framebuffer_release(fbdev->fb_info);
1126         case 0:
1127                 /* nothing to free */
1128                 break;
1129         default:
1130                 BUG();
1131         }
1132 }
1133
1134 static int omapfb_find_panel(struct omapfb_device *fbdev)
1135 {
1136         const struct omap_lcd_config *conf;
1137         char name[17];
1138         int i;
1139
1140         conf = (struct omap_lcd_config *)fbdev->dev->platform_data;
1141         fbdev->panel = NULL;
1142         if (conf == NULL)
1143                 return -1;
1144
1145         strncpy(name, conf->panel_name, sizeof(name) - 1);
1146         name[sizeof(name) - 1] = 0;
1147         for (i = 0; i < ARRAY_SIZE(panels); i++) {
1148                 if (strcmp(panels[i]->name, name) == 0) {
1149                         fbdev->panel = panels[i];
1150                         break;
1151                 }
1152         }
1153
1154         if (fbdev->panel == NULL)
1155                 return -1;
1156
1157         return 0;
1158 }
1159
1160 static int omapfb_find_ctrl(struct omapfb_device *fbdev)
1161 {
1162         struct omap_lcd_config *conf;
1163         char name[17];
1164         int i;
1165
1166         conf = (struct omap_lcd_config *)fbdev->dev->platform_data;
1167
1168         fbdev->ctrl = NULL;
1169         if (conf == NULL)
1170                 return -1;
1171
1172         strncpy(name, conf->ctrl_name, sizeof(name) - 1);
1173         name[sizeof(name) - 1] = '\0';
1174
1175         if (strcmp(name, "internal") == 0) {
1176                 fbdev->ctrl = fbdev->int_ctrl;
1177                 return 0;
1178         }
1179
1180         for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
1181                 if (strcmp(ctrls[i]->name, name) == 0) {
1182                         fbdev->ctrl = ctrls[i];
1183                         break;
1184                 }
1185         }
1186
1187         if (fbdev->ctrl == NULL)
1188                 return -1;
1189
1190         return 0;
1191 }
1192
1193 static void check_required_callbacks(struct omapfb_device *fbdev)
1194 {
1195 #define _C(x) (fbdev->ctrl->x != NULL)
1196 #define _P(x) (fbdev->panel->x != NULL)
1197         BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
1198         BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
1199                  _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
1200                  _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
1201                  _P(get_caps)));
1202 #undef _P
1203 #undef _C
1204 }
1205
1206 /* Called by LDM binding to probe and attach a new device.
1207  * Initialization sequence:
1208  *   1. allocate system fb_info structure
1209  *      select panel type according to machine type
1210  *   2. init LCD panel
1211  *   3. init LCD controller and LCD DMA
1212  *   4. init system fb_info structure
1213  *   5. init gfx DMA
1214  *   6. enable LCD panel
1215  *      start LCD frame transfer
1216  *   7. register system fb_info structure
1217  */
1218 static int omapfb_probe(struct device *dev)
1219 {
1220         struct platform_device  *pdev;
1221         struct omapfb_device    *fbdev = NULL;
1222         struct fb_info          *fbi;
1223         int                     init_state;
1224         unsigned long           phz, hhz, vhz;
1225         struct lcd_panel        *panel;
1226         int                     r = 0;
1227
1228         DBGENTER(1);
1229
1230         init_state = 0;
1231
1232         pdev = to_platform_device(dev);
1233         if (pdev->num_resources != 0) {
1234                 pr_err("probed for an unknown device\n");
1235                 r = -ENODEV;
1236                 goto cleanup;
1237         }
1238
1239         fbi = framebuffer_alloc(sizeof(struct omapfb_device), dev);
1240         if (fbi == NULL) {
1241                 pr_err("unable to allocate memory for device info\n");
1242                 r = -ENOMEM;
1243                 goto cleanup;
1244         }
1245         init_state++;
1246
1247         fbdev = (struct omapfb_device *)fbi->par;
1248         fbdev->fb_info = fbi;
1249         fbdev->dev = dev;
1250         dev_set_drvdata(dev, fbdev);
1251
1252         init_MUTEX(&fbdev->rqueue_sema);
1253
1254 #ifdef CONFIG_ARCH_OMAP1
1255         fbdev->int_ctrl = &omap1_int_ctrl;
1256 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1257         fbdev->ext_if = &sossi_extif;
1258 #endif
1259 #else   /* OMAP2 */
1260         fbdev->int_ctrl = &omap2_int_ctrl;
1261 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1262         fbdev->ext_if = &rfbi_extif;
1263 #endif
1264 #endif
1265         if (omapfb_find_ctrl(fbdev) < 0) {
1266                 pr_err("LCD controller not found, board not supported\n");
1267                 r = -ENODEV;
1268                 goto cleanup;
1269         }
1270
1271         if (omapfb_find_panel(fbdev) < 0) {
1272                 pr_err("LCD panel not found, board not supported\n");
1273                 r = -ENODEV;
1274                 goto cleanup;
1275         }
1276
1277         check_required_callbacks(fbdev);
1278
1279
1280         pr_info(MODULE_NAME ": configured for panel %s\n", fbdev->panel->name);
1281
1282         r = fbdev->panel->init(fbdev);
1283         if (r)
1284                 goto cleanup;
1285         init_state++;
1286
1287         r = ctrl_init(fbdev);
1288         if (r)
1289                 goto cleanup;
1290         init_state++;
1291
1292         r = fbinfo_init(fbdev);
1293         if (r)
1294                 goto cleanup;
1295         init_state++;
1296
1297 #ifdef CONFIG_FB_OMAP_DMA_TUNE
1298         /* Set DMA priority for EMIFF access to highest */
1299         omap_set_dma_priority(OMAP_DMA_PORT_EMIFF, 15);
1300 #endif
1301
1302         r = fbdev->panel->enable();
1303         if (r)
1304                 goto cleanup;
1305         init_state++;
1306
1307         r = ctrl_change_mode(fbdev);
1308         if (r) {
1309                 pr_err("mode setting failed\n");
1310                 goto cleanup;
1311         }
1312
1313         omapfb_enable_plane(fbdev, 0, 1);
1314
1315         omapfb_set_update_mode(fbdev, manual_update ?
1316                                    OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
1317
1318         r = omapfb_register_sysfs(fbdev);
1319         if (r)
1320                 goto cleanup;
1321         init_state++;
1322
1323         r = register_framebuffer(fbdev->fb_info);
1324         if (r != 0) {
1325                 pr_err("register_framebuffer failed\n");
1326                 goto cleanup;
1327         }
1328
1329         fbdev->state = OMAPFB_ACTIVE;
1330
1331         panel = fbdev->panel;
1332         phz = panel->pixel_clock * 1000;
1333         hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
1334         vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
1335
1336         pr_info(MODULE_NAME ": initialized vram=%lu "
1337                         "pixclock %lu kHz hfreq %lu.%lu kHz vfreq %lu.%lu Hz\n",
1338                         fbdev->vram_size,
1339                         phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
1340
1341         DBGLEAVE(1);
1342         return 0;
1343
1344 cleanup:
1345         omapfb_free_resources(fbdev, init_state);
1346
1347         DBGLEAVE(1);
1348         return r;
1349 }
1350
1351 /* Called when the device is being detached from the driver */
1352 static int omapfb_remove(struct device *dev)
1353 {
1354         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1355         enum omapfb_state saved_state = fbdev->state;
1356
1357         DBGENTER(1);
1358         /* FIXME: wait till completion of pending events */
1359
1360         fbdev->state = OMAPFB_DISABLED;
1361         omapfb_free_resources(fbdev, saved_state);
1362
1363         DBGLEAVE(1);
1364         return 0;
1365 }
1366
1367 /* PM suspend */
1368 static int omapfb_suspend(struct device *dev, pm_message_t mesg, u32 level)
1369 {
1370         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1371
1372         DBGENTER(1);
1373
1374         omapfb_blank(VESA_POWERDOWN, fbdev->fb_info);
1375
1376         DBGLEAVE(1);
1377
1378         return 0;
1379 }
1380
1381 /* PM resume */
1382 static int omapfb_resume(struct device *dev, u32 level)
1383 {
1384         struct omapfb_device *fbdev = dev_get_drvdata(dev);
1385
1386         DBGENTER(1);
1387
1388         omapfb_blank(VESA_NO_BLANKING, fbdev->fb_info);
1389
1390         DBGLEAVE(1);
1391         return 0;
1392 }
1393
1394 static struct device_driver omapfb_driver = {
1395         .name           = OMAPFB_DRIVER,
1396         .bus            = &platform_bus_type,
1397         .probe          = omapfb_probe,
1398         .remove         = omapfb_remove,
1399         .suspend        = omapfb_suspend,
1400         .resume         = omapfb_resume
1401 };
1402
1403 #ifndef MODULE
1404
1405 /* Process kernel command line parameters */
1406 static int __init omapfb_setup(char *options)
1407 {
1408         char *this_opt = NULL;
1409         int r = 0;
1410
1411         DBGENTER(1);
1412
1413         if (!options || !*options)
1414                 goto exit;
1415
1416         while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1417                 if (!strncmp(this_opt, "accel", 5))
1418                         def_accel = 1;
1419                 else if (!strncmp(this_opt, "vram:", 5)) {
1420                         char *suffix;
1421                         def_vram = (simple_strtoul(this_opt + 5, &suffix, 0));
1422                         switch (suffix[0]) {
1423                         case '\0':
1424                                 break;
1425                         case 'm':
1426                         case 'M':
1427                                 def_vram *= 1024;
1428                                 /* Fall through */
1429                         case 'k':
1430                         case 'K':
1431                                 def_vram *= 1024;
1432                                 break;
1433                         default:
1434                                 pr_err("invalid vram suffix\n");
1435                                 r = -1;
1436                         }
1437                 }
1438                 else if (!strncmp(this_opt, "vxres:", 6))
1439                         def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
1440                 else if (!strncmp(this_opt, "vyres:", 6))
1441                         def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
1442                 else if (!strncmp(this_opt, "rotate:", 7))
1443                         def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
1444                 else if (!strncmp(this_opt, "mirror:", 7))
1445                         def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
1446                 else if (!strncmp(this_opt, "manual_update", 13))
1447                         manual_update = 1;
1448                 else {
1449                         pr_err("invalid option\n");
1450                         r = -1;
1451                 }
1452         }
1453 exit:
1454         DBGLEAVE(1);
1455         return r;
1456 }
1457
1458 #endif
1459
1460 /* Register both the driver and the device */
1461 static int __init omapfb_init(void)
1462 {
1463         int r = 0;
1464
1465         DBGENTER(1);
1466
1467 #ifndef MODULE
1468         {
1469                 char *option;
1470
1471                 if (fb_get_options("omapfb", &option)) {
1472                         r = -ENODEV;
1473                         goto exit;
1474                 }
1475                 omapfb_setup(option);
1476         }
1477 #endif
1478         /* Register the driver with LDM */
1479         if (driver_register(&omapfb_driver)) {
1480                 pr_err("failed to register omapfb driver\n");
1481                 r = -ENODEV;
1482                 goto exit;
1483         }
1484
1485 exit:
1486         DBGLEAVE(1);
1487         return r;
1488 }
1489
1490 static void __exit omapfb_cleanup(void)
1491 {
1492         DBGENTER(1);
1493
1494         driver_unregister(&omapfb_driver);
1495
1496         DBGLEAVE(1);
1497 }
1498
1499 module_param_named(accel, def_accel, uint, 0664);
1500 module_param_named(vram, def_vram, ulong, 0664);
1501 module_param_named(vxres, def_vxres, long, 0664);
1502 module_param_named(vyres, def_vyres, long, 0664);
1503 module_param_named(rotate, def_rotate, uint, 0664);
1504 module_param_named(mirror, def_mirror, uint, 0664);
1505 module_param_named(manual_update, manual_update, bool, 0664);
1506
1507 module_init(omapfb_init);
1508 module_exit(omapfb_cleanup);
1509
1510 MODULE_DESCRIPTION("TI OMAP framebuffer driver");
1511 MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
1512 MODULE_LICENSE("GPL");