drivers/video/sun3fb.c

   1 /*
   2  *  linux/drivers/video/sun3fb.c -- Frame buffer driver for Sun3
   3  *
   4  * (C) 1998 Thomas Bogendoerfer
   5  *
   6  * This driver is bases on sbusfb.c, which is
   7  *
   8  *      Copyright (C) 1998 Jakub Jelinek
   9  *
  10  *  This driver is partly based on the Open Firmware console driver
  11  *
  12  *      Copyright (C) 1997 Geert Uytterhoeven
  13  *
  14  *  and SPARC console subsystem
  15  *
  16  *      Copyright (C) 1995 Peter Zaitcev (zaitcev@yahoo.com)
  17  *      Copyright (C) 1995-1997 David S. Miller (davem@caip.rutgers.edu)
  18  *      Copyright (C) 1995-1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
  19  *      Copyright (C) 1996 Dave Redman (djhr@tadpole.co.uk)
  20  *      Copyright (C) 1996-1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
  21  *      Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
  22  *
  23  *  This file is subject to the terms and conditions of the GNU General Public
  24  *  License. See the file COPYING in the main directory of this archive for
  25  *  more details.
  26  */
  27
  28 #include <linux/config.h>
  29 #include <linux/module.h>
  30 #include <linux/kernel.h>
  31 #include <linux/errno.h>
  32 #include <linux/string.h>
  33 #include <linux/mm.h>
  34 #include <linux/tty.h>
  35 #include <linux/slab.h>
  36 #include <linux/vmalloc.h>
  37 #include <linux/delay.h>
  38 #include <linux/interrupt.h>
  39 #include <linux/fb.h>
  40 #include <linux/selection.h>
  41 #include <linux/init.h>
  42 #include <linux/console.h>
  43 #include <linux/kd.h>
  44 #include <linux/vt_kern.h>
  45
  46 #include <asm/uaccess.h>
  47 #include <asm/pgtable.h>        /* io_remap_page_range() */
  48
  49 #ifdef CONFIG_SUN3
  50 #include <asm/oplib.h>
  51 #include <asm/machines.h>
  52 #include <asm/idprom.h>
  53
  54 #define CGFOUR_OBMEM_ADDR 0x1f300000
  55 #define BWTWO_OBMEM_ADDR 0x1f000000
  56 #define BWTWO_OBMEM50_ADDR 0x00100000
  57
  58 #endif
  59 #ifdef CONFIG_SUN3X
  60 #include <asm/sun3x.h>
  61 #endif
  62 #include <video/sbusfb.h>
  63
  64 #define DEFAULT_CURSOR_BLINK_RATE       (2*HZ/5)
  65
  66 #define CURSOR_SHAPE                    1
  67 #define CURSOR_BLINK                    2
  68
  69 #define mymemset(x,y) memset(x,0,y)
  70
  71     /*
  72      *  Interface used by the world
  73      */
  74
  75 int sun3fb_init(void);
  76 void sun3fb_setup(char *options);
  77
  78 static char fontname[40] __initdata = { 0 };
  79 static int curblink __initdata = 1;
  80
  81 static int sun3fb_get_fix(struct fb_fix_screeninfo *fix, int con,
  82                         struct fb_info *info);
  83 static int sun3fb_get_var(struct fb_var_screeninfo *var, int con,
  84                         struct fb_info *info);
  85 static int sun3fb_set_var(struct fb_var_screeninfo *var, int con,
  86                         struct fb_info *info);
  87 static int sun3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
  88                         struct fb_info *info);
  89 static int sun3fb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
  90                         struct fb_info *info);
  91 static int sun3fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
  92                             u_int transp, struct fb_info *info);
  93 static int sun3fb_blank(int blank, struct fb_info *info);
  94 static void sun3fb_cursor(struct display *p, int mode, int x, int y);
  95 static void sun3fb_clear_margin(struct display *p, int s);
  96
  97     /*
  98      *  Interface to the low level console driver
  99      */
 100
 101 static int sun3fbcon_switch(int con, struct fb_info *info);
 102 static int sun3fbcon_updatevar(int con, struct fb_info *info);
 103
 104     /*
 105      *  Internal routines
 106      */
 107
 108 static int sun3fb_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
 109                             u_int *transp, struct fb_info *info);
 110
 111 static struct fb_ops sun3fb_ops = {
 112         .owner =        THIS_MODULE,
 113         .fb_get_fix =   sun3fb_get_fix,
 114         .fb_get_var =   sun3fb_get_var,
 115         .fb_set_var =   sun3fb_set_var,
 116         .fb_get_cmap =  sun3fb_get_cmap,
 117         .fb_set_cmap =  sun3fb_set_cmap,
 118         .fb_setcolreg = sun3fb_setcolreg,
 119         .fb_blank =     sun3fb_blank,
 120 };
 121
 122 static void sun3fb_clear_margin(struct display *p, int s)
 123 {
 124         struct fb_info_sbusfb *fb = sbusfbinfod(p);
 125
 126         return;
 127
 128         if (fb->switch_from_graph)
 129                 (*fb->switch_from_graph)(fb);
 130         if (fb->fill) {
 131                 unsigned short rects [16];
 132
 133                 rects [0] = 0;
 134                 rects [1] = 0;
 135                 rects [2] = fb->var.xres_virtual;
 136                 rects [3] = fb->y_margin;
 137                 rects [4] = 0;
 138                 rects [5] = fb->y_margin;
 139                 rects [6] = fb->x_margin;
 140                 rects [7] = fb->var.yres_virtual;
 141                 rects [8] = fb->var.xres_virtual - fb->x_margin;
 142                 rects [9] = fb->y_margin;
 143                 rects [10] = fb->var.xres_virtual;
 144                 rects [11] = fb->var.yres_virtual;
 145                 rects [12] = fb->x_margin;
 146                 rects [13] = fb->var.yres_virtual - fb->y_margin;
 147                 rects [14] = fb->var.xres_virtual - fb->x_margin;
 148                 rects [15] = fb->var.yres_virtual;
 149                 (*fb->fill)(fb, p, s, 4, rects);
 150         } else {
 151                 unsigned char *fb_base = fb->info.screen_base, *q;
 152                 int skip_bytes = fb->y_margin * fb->var.xres_virtual;
 153                 int scr_size = fb->var.xres_virtual * fb->var.yres_virtual;
 154                 int h, he, incr, size;
 155
 156                 he = fb->var.yres;
 157                 if (fb->var.bits_per_pixel == 1) {
 158                         fb_base -= (skip_bytes + fb->x_margin) / 8;
 159                         skip_bytes /= 8;
 160                         scr_size /= 8;
 161                         mymemset (fb_base, skip_bytes - fb->x_margin / 8);
 162                         mymemset (fb_base + scr_size - skip_bytes + fb->x_margin / 8, skip_bytes - fb->x_margin / 8);
 163                         incr = fb->var.xres_virtual / 8;
 164                         size = fb->x_margin / 8 * 2;
 165                         for (q = fb_base + skip_bytes - fb->x_margin / 8, h = 0;
 166                              h <= he; q += incr, h++)
 167                                 mymemset (q, size);
 168                 } else {
 169                         fb_base -= (skip_bytes + fb->x_margin);
 170                         memset (fb_base, attr_bgcol(p,s), skip_bytes - fb->x_margin);
 171                         memset (fb_base + scr_size - skip_bytes + fb->x_margin, attr_bgcol(p,s), skip_bytes - fb->x_margin);
 172                         incr = fb->var.xres_virtual;
 173                         size = fb->x_margin * 2;
 174                         for (q = fb_base + skip_bytes - fb->x_margin, h = 0;
 175                              h <= he; q += incr, h++)
 176                                 memset (q, attr_bgcol(p,s), size);
 177                 }
 178         }
 179 }
 180
 181 static void sun3fb_disp_setup(struct display *p)
 182 {
 183         struct fb_info_sbusfb *fb = sbusfbinfod(p);
 184
 185         if (fb->setup)
 186                 fb->setup(p);
 187         sun3fb_clear_margin(p, 0);
 188 }
 189
 190     /*
 191      *  Get the Fixed Part of the Display
 192      */
 193
 194 static int sun3fb_get_fix(struct fb_fix_screeninfo *fix, int con,
 195                           struct fb_info *info)
 196 {
 197         struct fb_info_sbusfb *fb = sbusfbinfo(info);
 198
 199         memcpy(fix, &fb->fix, sizeof(struct fb_fix_screeninfo));
 200         return 0;
 201 }
 202
 203     /*
 204      *  Get the User Defined Part of the Display
 205      */
 206
 207 static int sun3fb_get_var(struct fb_var_screeninfo *var, int con,
 208                           struct fb_info *info)
 209 {
 210         struct fb_info_sbusfb *fb = sbusfbinfo(info);
 211
 212         memcpy(var, &fb->var, sizeof(struct fb_var_screeninfo));
 213         return 0;
 214 }
 215
 216     /*
 217      *  Set the User Defined Part of the Display
 218      */
 219
 220 static int sun3fb_set_var(struct fb_var_screeninfo *var, int con,
 221                         struct fb_info *info)
 222 {
 223         struct fb_info_sbusfb *fb = sbusfbinfo(info);
 224
 225         if (var->xres > fb->var.xres || var->yres > fb->var.yres ||
 226             var->xres_virtual > fb->var.xres_virtual ||
 227             var->yres_virtual > fb->var.yres_virtual ||
 228             var->bits_per_pixel != fb->var.bits_per_pixel ||
 229             var->nonstd ||
 230             (var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
 231                 return -EINVAL;
 232         memcpy(var, &fb->var, sizeof(struct fb_var_screeninfo));
 233         return 0;
 234 }
 235
 236     /*
 237      *  Hardware cursor
 238      */
 239
 240 static unsigned char hw_cursor_cmap[2] = { 0, 0xff };
 241
 242 static void
 243 sun3fb_cursor_timer_handler(unsigned long dev_addr)
 244 {
 245         struct fb_info_sbusfb *fb = (struct fb_info_sbusfb *)dev_addr;
 246
 247         if (!fb->setcursor) return;
 248
 249         if (fb->cursor.mode & CURSOR_BLINK) {
 250                 fb->cursor.enable ^= 1;
 251                 fb->setcursor(fb);
 252         }
 253
 254         fb->cursor.timer.expires = jiffies + fb->cursor.blink_rate;
 255         add_timer(&fb->cursor.timer);
 256 }
 257
 258 static void sun3fb_cursor(struct display *p, int mode, int x, int y)
 259 {
 260         struct fb_info_sbusfb *fb = sbusfbinfod(p);
 261
 262         switch (mode) {
 263         case CM_ERASE:
 264                 fb->cursor.mode &= ~CURSOR_BLINK;
 265                 fb->cursor.enable = 0;
 266                 (*fb->setcursor)(fb);
 267                 break;
 268
 269         case CM_MOVE:
 270         case CM_DRAW:
 271                 if (fb->cursor.mode & CURSOR_SHAPE) {
 272                         fb->cursor.size.fbx = fontwidth(p);
 273                         fb->cursor.size.fby = fontheight(p);
 274                         fb->cursor.chot.fbx = 0;
 275                         fb->cursor.chot.fby = 0;
 276                         fb->cursor.enable = 1;
 277                         memset (fb->cursor.bits, 0, sizeof (fb->cursor.bits));
 278                         fb->cursor.bits[0][fontheight(p) - 2] = (0xffffffff << (32 - fontwidth(p)));
 279                         fb->cursor.bits[1][fontheight(p) - 2] = (0xffffffff << (32 - fontwidth(p)));
 280                         fb->cursor.bits[0][fontheight(p) - 1] = (0xffffffff << (32 - fontwidth(p)));
 281                         fb->cursor.bits[1][fontheight(p) - 1] = (0xffffffff << (32 - fontwidth(p)));
 282                         (*fb->setcursormap) (fb, hw_cursor_cmap, hw_cursor_cmap, hw_cursor_cmap);
 283                         (*fb->setcurshape) (fb);
 284                 }
 285                 fb->cursor.mode = CURSOR_BLINK;
 286                 if (fontwidthlog(p))
 287                         fb->cursor.cpos.fbx = (x << fontwidthlog(p)) + fb->x_margin;
 288                 else
 289                         fb->cursor.cpos.fbx = (x * fontwidth(p)) + fb->x_margin;
 290                 if (fontheightlog(p))
 291                         fb->cursor.cpos.fby = (y << fontheightlog(p)) + fb->y_margin;
 292                 else
 293                         fb->cursor.cpos.fby = (y * fontheight(p)) + fb->y_margin;
 294                 (*fb->setcursor)(fb);
 295                 break;
 296         }
 297 }
 298
 299     /*
 300      *  Get the Colormap
 301      */
 302
 303 static int sun3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
 304                          struct fb_info *info)
 305 {
 306         if (con == info->currcon) /* current console? */
 307                 return fb_get_cmap(cmap, kspc, sun3fb_getcolreg, info);
 308         else if (fb_display[con].cmap.len) /* non default colormap? */
 309                 fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
 310         else
 311                 fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel), cmap, kspc ? 0 : 2);
 312         return 0;
 313 }
 314
 315     /*
 316      *  Set the Colormap
 317      */
 318
 319 static int sun3fb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
 320                          struct fb_info *info)
 321 {
 322         int err;
 323
 324         if (!fb_display[con].cmap.len) {        /* no colormap allocated? */
 325                 if ((err = fb_alloc_cmap(&fb_display[con].cmap, 1<<fb_display[con].var.bits_per_pixel, 0)))
 326                         return err;
 327         }
 328         if (con == info->currcon) {                     /* current console? */
 329                 err = fb_set_cmap(cmap, kspc, info);
 330                 if (!err) {
 331                         struct fb_info_sbusfb *fb = sbusfbinfo(info);
 332
 333                         if (fb->loadcmap)
 334                                 (*fb->loadcmap)(fb, &fb_display[con], cmap->start, cmap->len);
 335                 }
 336                 return err;
 337         } else
 338                 fb_copy_cmap(cmap, &fb_display[con].cmap, kspc ? 0 : 1);
 339         return 0;
 340 }
 341
 342     /*
 343      *  Setup: parse used options
 344      */
 345
 346 void __init sun3fb_setup(char *options)
 347 {
 348         char *p;
 349
 350         for (p = options;;) {
 351                 if (!strncmp(p, "font=", 5)) {
 352                         int i;
 353
 354                         for (i = 0; i < sizeof(fontname) - 1; i++)
 355                                 if (p[i+5] == ' ' || !p[i+5])
 356                                         break;
 357                         memcpy(fontname, p+5, i);
 358                         fontname[i] = 0;
 359                 } else if (!strncmp(p, "noblink", 7))
 360                         curblink = 0;
 361                 while (*p && *p != ' ' && *p != ',') p++;
 362                 if (*p != ',') break;
 363                 p++;
 364         }
 365
 366         return;
 367 }
 368
 369 static int sun3fbcon_switch(int con, struct fb_info *info)
 370 {
 371         int x_margin, y_margin;
 372         struct fb_info_sbusfb *fb = sbusfbinfo(info);
 373         int lastconsole;
 374
 375         /* Do we have to save the colormap? */
 376         if (fb_display[info->currcon].cmap.len)
 377                 fb_get_cmap(&fb_display[info->currcon].cmap, 1, sun3fb_getcolreg, info);
 378
 379         if (info->display_fg) {
 380                 lastconsole = info->display_fg->vc_num;
 381                 if (lastconsole != con &&
 382                     (fontwidth(&fb_display[lastconsole]) != fontwidth(&fb_display[con]) ||
 383                      fontheight(&fb_display[lastconsole]) != fontheight(&fb_display[con])))
 384                         fb->cursor.mode |= CURSOR_SHAPE;
 385         }
 386         x_margin = (fb_display[con].var.xres_virtual - fb_display[con].var.xres) / 2;
 387         y_margin = (fb_display[con].var.yres_virtual - fb_display[con].var.yres) / 2;
 388         if (fb->margins)
 389                 fb->margins(fb, &fb_display[con], x_margin, y_margin);
 390         if (fb->graphmode || fb->x_margin != x_margin || fb->y_margin != y_margin) {
 391                 fb->x_margin = x_margin; fb->y_margin = y_margin;
 392                 sun3fb_clear_margin(&fb_display[con], 0);
 393         }
 394         info->currcon = con;
 395         /* Install new colormap */
 396         do_install_cmap(con, info);
 397         return 0;
 398 }
 399
 400     /*
 401      *  Update the `var' structure (called by fbcon.c)
 402      */
 403
 404 static int sun3fbcon_updatevar(int con, struct fb_info *info)
 405 {
 406         /* Nothing */
 407         return 0;
 408 }
 409
 410     /*
 411      *  Blank the display.
 412      */
 413
 414 static int sun3fb_blank(int blank, struct fb_info *info)
 415 {
 416     struct fb_info_sbusfb *fb = sbusfbinfo(info);
 417
 418     if (blank && fb->blank)
 419         return fb->blank(fb);
 420     else if (!blank && fb->unblank)
 421         return fb->unblank(fb);
 422     return 0;
 423 }
 424
 425     /*
 426      *  Read a single color register and split it into
 427      *  colors/transparent. Return != 0 for invalid regno.
 428      */
 429
 430 static int sun3fb_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
 431                           u_int *transp, struct fb_info *info)
 432 {
 433         struct fb_info_sbusfb *fb = sbusfbinfo(info);
 434
 435         if (!fb->color_map || regno > 255)
 436                 return 1;
 437         *red = (fb->color_map CM(regno, 0)<<8) | fb->color_map CM(regno, 0);
 438         *green = (fb->color_map CM(regno, 1)<<8) | fb->color_map CM(regno, 1);
 439         *blue = (fb->color_map CM(regno, 2)<<8) | fb->color_map CM(regno, 2);
 440         *transp = 0;
 441         return 0;
 442 }
 443
 444
 445     /*
 446      *  Set a single color register. The values supplied are already
 447      *  rounded down to the hardware's capabilities (according to the
 448      *  entries in the var structure). Return != 0 for invalid regno.
 449      */
 450
 451 static int sun3fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 452                             u_int transp, struct fb_info *info)
 453 {
 454         struct fb_info_sbusfb *fb = sbusfbinfo(info);
 455
 456         if (!fb->color_map || regno > 255)
 457                 return 1;
 458         red >>= 8;
 459         green >>= 8;
 460         blue >>= 8;
 461         fb->color_map CM(regno, 0) = red;
 462         fb->color_map CM(regno, 1) = green;
 463         fb->color_map CM(regno, 2) = blue;
 464         return 0;
 465 }
 466
 467 static int sun3fb_set_font(struct display *p, int width, int height)
 468 {
 469         int w = p->var.xres_virtual, h = p->var.yres_virtual;
 470         int depth = p->var.bits_per_pixel;
 471         struct fb_info_sbusfb *fb = sbusfbinfod(p);
 472         int x_margin, y_margin;
 473
 474         if (depth > 8) depth = 8;
 475         x_margin = (w % width) / 2;
 476         y_margin = (h % height) / 2;
 477
 478         p->var.xres = w - 2*x_margin;
 479         p->var.yres = h - 2*y_margin;
 480
 481         fb->cursor.mode |= CURSOR_SHAPE;
 482
 483         if (fb->margins)
 484                 fb->margins(fb, p, x_margin, y_margin);
 485         if (fb->x_margin != x_margin || fb->y_margin != y_margin) {
 486                 fb->x_margin = x_margin; fb->y_margin = y_margin;
 487                 sun3fb_clear_margin(p, 0);
 488         }
 489
 490         return 1;
 491 }
 492
 493 void sun3fb_palette(int enter)
 494 {
 495         int i;
 496         struct display *p;
 497
 498         for (i = 0; i < MAX_NR_CONSOLES; i++) {
 499                 p = &fb_display[i];
 500                 if (p->dispsw && p->dispsw->setup == sun3fb_disp_setup &&
 501                     p->fb_info->display_fg &&
 502                     p->fb_info->display_fg->vc_num == i) {
 503                         struct fb_info_sbusfb *fb = sbusfbinfod(p);
 504
 505                         if (fb->restore_palette) {
 506                                 if (enter)
 507                                         fb->restore_palette(fb);
 508                                 else if (vc_cons[i].d->vc_mode != KD_GRAPHICS)
 509                                          vc_cons[i].d->vc_sw->con_set_palette(vc_cons[i].d, color_table);
 510                         }
 511                 }
 512         }
 513 }
 514
 515     /*
 516      *  Initialisation
 517      */
 518 static int __init sun3fb_init_fb(int fbtype, unsigned long addr)
 519 {
 520         static struct sbus_dev sdb;
 521         struct fb_fix_screeninfo *fix;
 522         struct fb_var_screeninfo *var;
 523         struct display *disp;
 524         struct fb_info_sbusfb *fb;
 525         struct fbtype *type;
 526         int linebytes, w, h, depth;
 527         char *p = NULL;
 528
 529         fb = kmalloc(sizeof(struct fb_info_sbusfb), GFP_ATOMIC);
 530         if (!fb)
 531                 return -ENOMEM;
 532
 533         memset(fb, 0, sizeof(struct fb_info_sbusfb));
 534         fix = &fb->fix;
 535         var = &fb->var;
 536         disp = &fb->disp;
 537         type = &fb->type;
 538
 539         sdb.reg_addrs[0].phys_addr = addr;
 540         fb->sbdp = &sdb;
 541
 542         type->fb_type = fbtype;
 543
 544         type->fb_height = h = 900;
 545         type->fb_width  = w = 1152;
 546 sizechange:
 547         type->fb_depth  = depth = (fbtype == FBTYPE_SUN2BW) ? 1 : 8;
 548         linebytes = w * depth / 8;
 549         type->fb_size   = PAGE_ALIGN((linebytes) * h);
 550 /*
 551         fb->x_margin = (w & 7) / 2;
 552         fb->y_margin = (h & 15) / 2;
 553 */
 554         fb->x_margin = fb->y_margin = 0;
 555
 556         var->xres_virtual = w;
 557         var->yres_virtual = h;
 558         var->xres = w - 2*fb->x_margin;
 559         var->yres = h - 2*fb->y_margin;
 560
 561         var->bits_per_pixel = depth;
 562         var->height = var->width = -1;
 563         var->pixclock = 10000;
 564         var->vmode = FB_VMODE_NONINTERLACED;
 565         var->red.length = var->green.length = var->blue.length = 8;
 566
 567         fix->line_length = linebytes;
 568         fix->smem_len = type->fb_size;
 569         fix->type = FB_TYPE_PACKED_PIXELS;
 570         fix->visual = FB_VISUAL_PSEUDOCOLOR;
 571
 572         fb->info.fbops = &sun3fb_ops;
 573         fb->info.disp = disp;
 574         fb->info.currcon = -1;
 575         strcpy(fb->info.fontname, fontname);
 576         fb->info.changevar = NULL;
 577         fb->info.switch_con = &sun3fbcon_switch;
 578         fb->info.updatevar = &sun3fbcon_updatevar;
 579         fb->info.flags = FBINFO_FLAG_DEFAULT;
 580
 581         fb->cursor.hwsize.fbx = 32;
 582         fb->cursor.hwsize.fby = 32;
 583
 584         if (depth > 1 && !fb->color_map) {
 585                 if((fb->color_map = kmalloc(256 * 3, GFP_ATOMIC))==NULL)
 586                         return -ENOMEM;
 587         }
 588
 589         switch(fbtype) {
 590 #ifdef CONFIG_FB_CGSIX
 591         case FBTYPE_SUNFAST_COLOR:
 592                 p = cgsixfb_init(fb); break;
 593 #endif
 594 #ifdef CONFIG_FB_BWTWO
 595         case FBTYPE_SUN2BW:
 596                 p = bwtwofb_init(fb); break;
 597 #endif
 598 #ifdef CONFIG_FB_CGTHREE
 599         case FBTYPE_SUN4COLOR:
 600         case FBTYPE_SUN3COLOR:
 601                 type->fb_size = 0x100000;
 602                 p = cgthreefb_init(fb); break;
 603 #endif
 604         }
 605         fix->smem_start = (unsigned long)fb->info.screen_base;  // FIXME
 606
 607         if (!p) {
 608                 kfree(fb);
 609                 return -ENODEV;
 610         }
 611
 612         if (p == SBUSFBINIT_SIZECHANGE)
 613                 goto sizechange;
 614
 615         disp->dispsw = &fb->dispsw;
 616         if (fb->setcursor) {
 617                 fb->dispsw.cursor = sun3fb_cursor;
 618                 if (curblink) {
 619                         fb->cursor.blink_rate = DEFAULT_CURSOR_BLINK_RATE;
 620                         init_timer(&fb->cursor.timer);
 621                         fb->cursor.timer.expires = jiffies + fb->cursor.blink_rate;
 622                         fb->cursor.timer.data = (unsigned long)fb;
 623                         fb->cursor.timer.function = sun3fb_cursor_timer_handler;
 624                         add_timer(&fb->cursor.timer);
 625                 }
 626         }
 627         fb->cursor.mode = CURSOR_SHAPE;
 628         fb->dispsw.set_font = sun3fb_set_font;
 629         fb->setup = fb->dispsw.setup;
 630         fb->dispsw.setup = sun3fb_disp_setup;
 631         fb->dispsw.clear_margins = NULL;
 632
 633         disp->var = *var;
 634         disp->visual = fix->visual;
 635         disp->type = fix->type;
 636         disp->type_aux = fix->type_aux;
 637         disp->line_length = fix->line_length;
 638
 639         if (fb->blank)
 640                 disp->can_soft_blank = 1;
 641
 642         sun3fb_set_var(var, -1, &fb->info);
 643
 644         if (register_framebuffer(&fb->info) < 0) {
 645                 kfree(fb);
 646                 return -EINVAL;
 647         }
 648         printk("fb%d: %s\n", fb->info.node, p);
 649
 650         return 0;
 651 }
 652
 653
 654 int __init sun3fb_init(void)
 655 {
 656         extern int con_is_present(void);
 657         unsigned long addr;
 658         char p4id;
 659
 660         if (!con_is_present()) return -ENODEV;
 661 #ifdef CONFIG_SUN3
 662         switch(*(romvec->pv_fbtype))
 663         {
 664         case FBTYPE_SUN2BW:
 665                 addr = 0xfe20000;
 666                 return sun3fb_init_fb(FBTYPE_SUN2BW, addr);
 667         case FBTYPE_SUN3COLOR:
 668         case FBTYPE_SUN4COLOR:
 669                 if(idprom->id_machtype != (SM_SUN3|SM_3_60)) {
 670                         printk("sun3fb: cgthree/four only supported on 3/60\n");
 671                         return -ENODEV;
 672                 }
 673
 674                 addr = CGFOUR_OBMEM_ADDR;
 675                 return sun3fb_init_fb(*(romvec->pv_fbtype), addr);
 676         default:
 677                 printk("sun3fb: unsupported framebuffer\n");
 678                 return -ENODEV;
 679         }
 680 #else
 681         addr = SUN3X_VIDEO_BASE;
 682         p4id = *(char *)SUN3X_VIDEO_P4ID;
 683
 684         p4id = (p4id == 0x45) ? p4id : (p4id & 0xf0);
 685         switch (p4id) {
 686                 case 0x00:
 687                         return sun3fb_init_fb(FBTYPE_SUN2BW, addr);
 688 #if 0 /* not yet */
 689                 case 0x40:
 690                         return sun3fb_init_fb(FBTYPE_SUN4COLOR, addr);
 691                         break;
 692                 case 0x45:
 693                         return sun3fb_init_fb(FBTYPE_SUN8COLOR, addr);
 694                         break;
 695 #endif
 696                 case 0x60:
 697                         return sun3fb_init_fb(FBTYPE_SUNFAST_COLOR, addr);
 698         }
 699 #endif
 700
 701         return -ENODEV;
 702 }
 703
 704 MODULE_LICENSE("GPL");