drivers/video/tridentfb.c

   1 /*
   2  * Frame buffer driver for Trident Blade and Image series
   3  *
   4  * Copyright 2001, 2002 - Jani Monoses   <jani@iv.ro>
   5  *
   6  *
   7  * CREDITS:(in order of appearance)
   8  *      skeletonfb.c by Geert Uytterhoeven and other fb code in drivers/video
   9  *      Special thanks ;) to Mattia Crivellini <tia@mclink.it>
  10  *      much inspired by the XFree86 4.x Trident driver sources
  11  *      by Alan Hourihane the FreeVGA project
  12  *      Francesco Salvestrini <salvestrini@users.sf.net> XP support,
  13  *      code, suggestions
  14  * TODO:
  15  *      timing value tweaking so it looks good on every monitor in every mode
  16  *      TGUI acceleration
  17  */
  18
  19 #include <linux/module.h>
  20 #include <linux/fb.h>
  21 #include <linux/init.h>
  22 #include <linux/pci.h>
  23
  24 #include <linux/delay.h>
  25 #include <video/trident.h>
  26
  27 #define VERSION         "0.7.9-NEWAPI"
  28
  29 struct tridentfb_par {
  30         void __iomem *io_virt;  /* iospace virtual memory address */
  31         u32 pseudo_pal[16];
  32         int chip_id;
  33         int flatpanel;
  34 };
  35
  36 static unsigned char eng_oper;  /* engine operation... */
  37 static struct fb_ops tridentfb_ops;
  38
  39 static struct fb_fix_screeninfo tridentfb_fix = {
  40         .id = "Trident",
  41         .type = FB_TYPE_PACKED_PIXELS,
  42         .ypanstep = 1,
  43         .visual = FB_VISUAL_PSEUDOCOLOR,
  44         .accel = FB_ACCEL_NONE,
  45 };
  46
  47 /* defaults which are normally overriden by user values */
  48
  49 /* video mode */
  50 static char *mode_option __devinitdata = "640x480";
  51 static int bpp __devinitdata = 8;
  52
  53 static int noaccel __devinitdata;
  54
  55 static int center;
  56 static int stretch;
  57
  58 static int fp __devinitdata;
  59 static int crt __devinitdata;
  60
  61 static int memsize __devinitdata;
  62 static int memdiff __devinitdata;
  63 static int nativex;
  64
  65 module_param(mode_option, charp, 0);
  66 MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
  67 module_param_named(mode, mode_option, charp, 0);
  68 MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)");
  69 module_param(bpp, int, 0);
  70 module_param(center, int, 0);
  71 module_param(stretch, int, 0);
  72 module_param(noaccel, int, 0);
  73 module_param(memsize, int, 0);
  74 module_param(memdiff, int, 0);
  75 module_param(nativex, int, 0);
  76 module_param(fp, int, 0);
  77 MODULE_PARM_DESC(fp, "Define if flatpanel is connected");
  78 module_param(crt, int, 0);
  79 MODULE_PARM_DESC(crt, "Define if CRT is connected");
  80
  81 static int is3Dchip(int id)
  82 {
  83         return ((id == BLADE3D) || (id == CYBERBLADEE4) ||
  84                 (id == CYBERBLADEi7) || (id == CYBERBLADEi7D) ||
  85                 (id == CYBER9397) || (id == CYBER9397DVD) ||
  86                 (id == CYBER9520) || (id == CYBER9525DVD) ||
  87                 (id == IMAGE975) || (id == IMAGE985) ||
  88                 (id == CYBERBLADEi1) || (id == CYBERBLADEi1D) ||
  89                 (id == CYBERBLADEAi1) || (id == CYBERBLADEAi1D) ||
  90                 (id == CYBERBLADEXPm8) || (id == CYBERBLADEXPm16) ||
  91                 (id == CYBERBLADEXPAi1));
  92 }
  93
  94 static int iscyber(int id)
  95 {
  96         switch (id) {
  97         case CYBER9388:
  98         case CYBER9382:
  99         case CYBER9385:
 100         case CYBER9397:
 101         case CYBER9397DVD:
 102         case CYBER9520:
 103         case CYBER9525DVD:
 104         case CYBERBLADEE4:
 105         case CYBERBLADEi7D:
 106         case CYBERBLADEi1:
 107         case CYBERBLADEi1D:
 108         case CYBERBLADEAi1:
 109         case CYBERBLADEAi1D:
 110         case CYBERBLADEXPAi1:
 111                 return 1;
 112
 113         case CYBER9320:
 114         case TGUI9660:
 115         case IMAGE975:
 116         case IMAGE985:
 117         case BLADE3D:
 118         case CYBERBLADEi7:      /* VIA MPV4 integrated version */
 119
 120         default:
 121                 /* case CYBERBLDAEXPm8:  Strange */
 122                 /* case CYBERBLDAEXPm16: Strange */
 123                 return 0;
 124         }
 125 }
 126
 127 #define CRT 0x3D0               /* CRTC registers offset for color display */
 128
 129 static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg)
 130 {
 131         fb_writeb(val, p->io_virt + reg);
 132 }
 133
 134 static inline u8 t_inb(struct tridentfb_par *p, u16 reg)
 135 {
 136         return fb_readb(p->io_virt + reg);
 137 }
 138
 139 static struct accel_switch {
 140         void (*init_accel) (struct tridentfb_par *, int, int);
 141         void (*wait_engine) (struct tridentfb_par *);
 142         void (*fill_rect)
 143                 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
 144         void (*copy_rect)
 145                 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
 146 } *acc;
 147
 148 static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v)
 149 {
 150         fb_writel(v, par->io_virt + r);
 151 }
 152
 153 static inline u32 readmmr(struct tridentfb_par *par, u16 r)
 154 {
 155         return fb_readl(par->io_virt + r);
 156 }
 157
 158 /*
 159  * Blade specific acceleration.
 160  */
 161
 162 #define point(x, y) ((y) << 16 | (x))
 163 #define STA     0x2120
 164 #define CMD     0x2144
 165 #define ROP     0x2148
 166 #define CLR     0x2160
 167 #define SR1     0x2100
 168 #define SR2     0x2104
 169 #define DR1     0x2108
 170 #define DR2     0x210C
 171
 172 #define ROP_S   0xCC
 173
 174 static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp)
 175 {
 176         int v1 = (pitch >> 3) << 20;
 177         int tmp = 0, v2;
 178         switch (bpp) {
 179         case 8:
 180                 tmp = 0;
 181                 break;
 182         case 15:
 183                 tmp = 5;
 184                 break;
 185         case 16:
 186                 tmp = 1;
 187                 break;
 188         case 24:
 189         case 32:
 190                 tmp = 2;
 191                 break;
 192         }
 193         v2 = v1 | (tmp << 29);
 194         writemmr(par, 0x21C0, v2);
 195         writemmr(par, 0x21C4, v2);
 196         writemmr(par, 0x21B8, v2);
 197         writemmr(par, 0x21BC, v2);
 198         writemmr(par, 0x21D0, v1);
 199         writemmr(par, 0x21D4, v1);
 200         writemmr(par, 0x21C8, v1);
 201         writemmr(par, 0x21CC, v1);
 202         writemmr(par, 0x216C, 0);
 203 }
 204
 205 static void blade_wait_engine(struct tridentfb_par *par)
 206 {
 207         while (readmmr(par, STA) & 0xFA800000) ;
 208 }
 209
 210 static void blade_fill_rect(struct tridentfb_par *par,
 211                             u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
 212 {
 213         writemmr(par, CLR, c);
 214         writemmr(par, ROP, rop ? 0x66 : ROP_S);
 215         writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
 216
 217         writemmr(par, DR1, point(x, y));
 218         writemmr(par, DR2, point(x + w - 1, y + h - 1));
 219 }
 220
 221 static void blade_copy_rect(struct tridentfb_par *par,
 222                             u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
 223 {
 224         u32 s1, s2, d1, d2;
 225         int direction = 2;
 226         s1 = point(x1, y1);
 227         s2 = point(x1 + w - 1, y1 + h - 1);
 228         d1 = point(x2, y2);
 229         d2 = point(x2 + w - 1, y2 + h - 1);
 230
 231         if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
 232                 direction = 0;
 233
 234         writemmr(par, ROP, ROP_S);
 235         writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction);
 236
 237         writemmr(par, SR1, direction ? s2 : s1);
 238         writemmr(par, SR2, direction ? s1 : s2);
 239         writemmr(par, DR1, direction ? d2 : d1);
 240         writemmr(par, DR2, direction ? d1 : d2);
 241 }
 242
 243 static struct accel_switch accel_blade = {
 244         blade_init_accel,
 245         blade_wait_engine,
 246         blade_fill_rect,
 247         blade_copy_rect,
 248 };
 249
 250 /*
 251  * BladeXP specific acceleration functions
 252  */
 253
 254 #define ROP_P 0xF0
 255 #define masked_point(x, y) ((y & 0xffff)<<16|(x & 0xffff))
 256
 257 static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
 258 {
 259         int tmp = 0, v1;
 260         unsigned char x = 0;
 261
 262         switch (bpp) {
 263         case 8:
 264                 x = 0;
 265                 break;
 266         case 16:
 267                 x = 1;
 268                 break;
 269         case 24:
 270                 x = 3;
 271                 break;
 272         case 32:
 273                 x = 2;
 274                 break;
 275         }
 276
 277         switch (pitch << (bpp >> 3)) {
 278         case 8192:
 279         case 512:
 280                 x |= 0x00;
 281                 break;
 282         case 1024:
 283                 x |= 0x04;
 284                 break;
 285         case 2048:
 286                 x |= 0x08;
 287                 break;
 288         case 4096:
 289                 x |= 0x0C;
 290                 break;
 291         }
 292
 293         t_outb(par, x, 0x2125);
 294
 295         eng_oper = x | 0x40;
 296
 297         switch (bpp) {
 298         case 8:
 299                 tmp = 18;
 300                 break;
 301         case 15:
 302         case 16:
 303                 tmp = 19;
 304                 break;
 305         case 24:
 306         case 32:
 307                 tmp = 20;
 308                 break;
 309         }
 310
 311         v1 = pitch << tmp;
 312
 313         writemmr(par, 0x2154, v1);
 314         writemmr(par, 0x2150, v1);
 315         t_outb(par, 3, 0x2126);
 316 }
 317
 318 static void xp_wait_engine(struct tridentfb_par *par)
 319 {
 320         int busy;
 321         int count, timeout;
 322
 323         count = 0;
 324         timeout = 0;
 325         for (;;) {
 326                 busy = t_inb(par, STA) & 0x80;
 327                 if (busy != 0x80)
 328                         return;
 329                 count++;
 330                 if (count == 10000000) {
 331                         /* Timeout */
 332                         count = 9990000;
 333                         timeout++;
 334                         if (timeout == 8) {
 335                                 /* Reset engine */
 336                                 t_outb(par, 0x00, 0x2120);
 337                                 return;
 338                         }
 339                 }
 340         }
 341 }
 342
 343 static void xp_fill_rect(struct tridentfb_par *par,
 344                          u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
 345 {
 346         writemmr(par, 0x2127, ROP_P);
 347         writemmr(par, 0x2158, c);
 348         writemmr(par, 0x2128, 0x4000);
 349         writemmr(par, 0x2140, masked_point(h, w));
 350         writemmr(par, 0x2138, masked_point(y, x));
 351         t_outb(par, 0x01, 0x2124);
 352         t_outb(par, eng_oper, 0x2125);
 353 }
 354
 355 static void xp_copy_rect(struct tridentfb_par *par,
 356                          u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
 357 {
 358         int direction;
 359         u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
 360
 361         direction = 0x0004;
 362
 363         if ((x1 < x2) && (y1 == y2)) {
 364                 direction |= 0x0200;
 365                 x1_tmp = x1 + w - 1;
 366                 x2_tmp = x2 + w - 1;
 367         } else {
 368                 x1_tmp = x1;
 369                 x2_tmp = x2;
 370         }
 371
 372         if (y1 < y2) {
 373                 direction |= 0x0100;
 374                 y1_tmp = y1 + h - 1;
 375                 y2_tmp = y2 + h - 1;
 376         } else {
 377                 y1_tmp = y1;
 378                 y2_tmp = y2;
 379         }
 380
 381         writemmr(par, 0x2128, direction);
 382         t_outb(par, ROP_S, 0x2127);
 383         writemmr(par, 0x213C, masked_point(y1_tmp, x1_tmp));
 384         writemmr(par, 0x2138, masked_point(y2_tmp, x2_tmp));
 385         writemmr(par, 0x2140, masked_point(h, w));
 386         t_outb(par, 0x01, 0x2124);
 387 }
 388
 389 static struct accel_switch accel_xp = {
 390         xp_init_accel,
 391         xp_wait_engine,
 392         xp_fill_rect,
 393         xp_copy_rect,
 394 };
 395
 396 /*
 397  * Image specific acceleration functions
 398  */
 399 static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp)
 400 {
 401         int tmp = 0;
 402         switch (bpp) {
 403         case 8:
 404                 tmp = 0;
 405                 break;
 406         case 15:
 407                 tmp = 5;
 408                 break;
 409         case 16:
 410                 tmp = 1;
 411                 break;
 412         case 24:
 413         case 32:
 414                 tmp = 2;
 415                 break;
 416         }
 417         writemmr(par, 0x2120, 0xF0000000);
 418         writemmr(par, 0x2120, 0x40000000 | tmp);
 419         writemmr(par, 0x2120, 0x80000000);
 420         writemmr(par, 0x2144, 0x00000000);
 421         writemmr(par, 0x2148, 0x00000000);
 422         writemmr(par, 0x2150, 0x00000000);
 423         writemmr(par, 0x2154, 0x00000000);
 424         writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch);
 425         writemmr(par, 0x216C, 0x00000000);
 426         writemmr(par, 0x2170, 0x00000000);
 427         writemmr(par, 0x217C, 0x00000000);
 428         writemmr(par, 0x2120, 0x10000000);
 429         writemmr(par, 0x2130, (2047 << 16) | 2047);
 430 }
 431
 432 static void image_wait_engine(struct tridentfb_par *par)
 433 {
 434         while (readmmr(par, 0x2164) & 0xF0000000) ;
 435 }
 436
 437 static void image_fill_rect(struct tridentfb_par *par,
 438                             u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
 439 {
 440         writemmr(par, 0x2120, 0x80000000);
 441         writemmr(par, 0x2120, 0x90000000 | ROP_S);
 442
 443         writemmr(par, 0x2144, c);
 444
 445         writemmr(par, DR1, point(x, y));
 446         writemmr(par, DR2, point(x + w - 1, y + h - 1));
 447
 448         writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9);
 449 }
 450
 451 static void image_copy_rect(struct tridentfb_par *par,
 452                             u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
 453 {
 454         u32 s1, s2, d1, d2;
 455         int direction = 2;
 456         s1 = point(x1, y1);
 457         s2 = point(x1 + w - 1, y1 + h - 1);
 458         d1 = point(x2, y2);
 459         d2 = point(x2 + w - 1, y2 + h - 1);
 460
 461         if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
 462                 direction = 0;
 463
 464         writemmr(par, 0x2120, 0x80000000);
 465         writemmr(par, 0x2120, 0x90000000 | ROP_S);
 466
 467         writemmr(par, SR1, direction ? s2 : s1);
 468         writemmr(par, SR2, direction ? s1 : s2);
 469         writemmr(par, DR1, direction ? d2 : d1);
 470         writemmr(par, DR2, direction ? d1 : d2);
 471         writemmr(par, 0x2124,
 472                  0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction);
 473 }
 474
 475 static struct accel_switch accel_image = {
 476         image_init_accel,
 477         image_wait_engine,
 478         image_fill_rect,
 479         image_copy_rect,
 480 };
 481
 482 /*
 483  * Accel functions called by the upper layers
 484  */
 485 #ifdef CONFIG_FB_TRIDENT_ACCEL
 486 static void tridentfb_fillrect(struct fb_info *info,
 487                                const struct fb_fillrect *fr)
 488 {
 489         struct tridentfb_par *par = info->par;
 490         int bpp = info->var.bits_per_pixel;
 491         int col = 0;
 492
 493         switch (bpp) {
 494         default:
 495         case 8:
 496                 col |= fr->color;
 497                 col |= col << 8;
 498                 col |= col << 16;
 499                 break;
 500         case 16:
 501                 col = ((u32 *)(info->pseudo_palette))[fr->color];
 502                 break;
 503         case 32:
 504                 col = ((u32 *)(info->pseudo_palette))[fr->color];
 505                 break;
 506         }
 507
 508         acc->fill_rect(par, fr->dx, fr->dy, fr->width,
 509                        fr->height, col, fr->rop);
 510         acc->wait_engine(par);
 511 }
 512 static void tridentfb_copyarea(struct fb_info *info,
 513                                const struct fb_copyarea *ca)
 514 {
 515         struct tridentfb_par *par = info->par;
 516
 517         acc->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy,
 518                        ca->width, ca->height);
 519         acc->wait_engine(par);
 520 }
 521 #else /* !CONFIG_FB_TRIDENT_ACCEL */
 522 #define tridentfb_fillrect cfb_fillrect
 523 #define tridentfb_copyarea cfb_copyarea
 524 #endif /* CONFIG_FB_TRIDENT_ACCEL */
 525
 526
 527 /*
 528  * Hardware access functions
 529  */
 530
 531 static inline unsigned char read3X4(struct tridentfb_par *par, int reg)
 532 {
 533         writeb(reg, par->io_virt + CRT + 4);
 534         return readb(par->io_virt + CRT + 5);
 535 }
 536
 537 static inline void write3X4(struct tridentfb_par *par, int reg,
 538                             unsigned char val)
 539 {
 540         writeb(reg, par->io_virt + CRT + 4);
 541         writeb(val, par->io_virt + CRT + 5);
 542 }
 543
 544 static inline unsigned char read3C4(struct tridentfb_par *par, int reg)
 545 {
 546         t_outb(par, reg, 0x3C4);
 547         return t_inb(par, 0x3C5);
 548 }
 549
 550 static inline void write3C4(struct tridentfb_par *par, int reg,
 551                             unsigned char val)
 552 {
 553         t_outb(par, reg, 0x3C4);
 554         t_outb(par, val, 0x3C5);
 555 }
 556
 557 static inline unsigned char read3CE(struct tridentfb_par *par, int reg)
 558 {
 559         t_outb(par, reg, 0x3CE);
 560         return t_inb(par, 0x3CF);
 561 }
 562
 563 static inline void writeAttr(struct tridentfb_par *par, int reg,
 564                              unsigned char val)
 565 {
 566         fb_readb(par->io_virt + CRT + 0x0A);    /* flip-flop to index */
 567         t_outb(par, reg, 0x3C0);
 568         t_outb(par, val, 0x3C0);
 569 }
 570
 571 static inline void write3CE(struct tridentfb_par *par, int reg,
 572                             unsigned char val)
 573 {
 574         t_outb(par, reg, 0x3CE);
 575         t_outb(par, val, 0x3CF);
 576 }
 577
 578 static void enable_mmio(void)
 579 {
 580         /* Goto New Mode */
 581         outb(0x0B, 0x3C4);
 582         inb(0x3C5);
 583
 584         /* Unprotect registers */
 585         outb(NewMode1, 0x3C4);
 586         outb(0x80, 0x3C5);
 587
 588         /* Enable MMIO */
 589         outb(PCIReg, 0x3D4);
 590         outb(inb(0x3D5) | 0x01, 0x3D5);
 591 }
 592
 593 static void disable_mmio(struct tridentfb_par *par)
 594 {
 595         /* Goto New Mode */
 596         t_outb(par, 0x0B, 0x3C4);
 597         t_inb(par, 0x3C5);
 598
 599         /* Unprotect registers */
 600         t_outb(par, NewMode1, 0x3C4);
 601         t_outb(par, 0x80, 0x3C5);
 602
 603         /* Disable MMIO */
 604         t_outb(par, PCIReg, 0x3D4);
 605         t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5);
 606 }
 607
 608 static void crtc_unlock(struct tridentfb_par *par)
 609 {
 610         write3X4(par, CRTVSyncEnd, read3X4(par, CRTVSyncEnd) & 0x7F);
 611 }
 612
 613 /*  Return flat panel's maximum x resolution */
 614 static int __devinit get_nativex(struct tridentfb_par *par)
 615 {
 616         int x, y, tmp;
 617
 618         if (nativex)
 619                 return nativex;
 620
 621         tmp = (read3CE(par, VertStretch) >> 4) & 3;
 622
 623         switch (tmp) {
 624         case 0:
 625                 x = 1280; y = 1024;
 626                 break;
 627         case 2:
 628                 x = 1024; y = 768;
 629                 break;
 630         case 3:
 631                 x = 800; y = 600;
 632                 break;
 633         case 4:
 634                 x = 1400; y = 1050;
 635                 break;
 636         case 1:
 637         default:
 638                 x = 640;  y = 480;
 639                 break;
 640         }
 641
 642         output("%dx%d flat panel found\n", x, y);
 643         return x;
 644 }
 645
 646 /* Set pitch */
 647 static void set_lwidth(struct tridentfb_par *par, int width)
 648 {
 649         write3X4(par, Offset, width & 0xFF);
 650         write3X4(par, AddColReg,
 651                  (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4));
 652 }
 653
 654 /* For resolutions smaller than FP resolution stretch */
 655 static void screen_stretch(struct tridentfb_par *par)
 656 {
 657         if (par->chip_id != CYBERBLADEXPAi1)
 658                 write3CE(par, BiosReg, 0);
 659         else
 660                 write3CE(par, BiosReg, 8);
 661         write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1);
 662         write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1);
 663 }
 664
 665 /* For resolutions smaller than FP resolution center */
 666 static void screen_center(struct tridentfb_par *par)
 667 {
 668         write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80);
 669         write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80);
 670 }
 671
 672 /* Address of first shown pixel in display memory */
 673 static void set_screen_start(struct tridentfb_par *par, int base)
 674 {
 675         u8 tmp;
 676         write3X4(par, StartAddrLow, base & 0xFF);
 677         write3X4(par, StartAddrHigh, (base & 0xFF00) >> 8);
 678         tmp = read3X4(par, CRTCModuleTest) & 0xDF;
 679         write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11));
 680         tmp = read3X4(par, CRTHiOrd) & 0xF8;
 681         write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17));
 682 }
 683
 684 /* Set dotclock frequency */
 685 static void set_vclk(struct tridentfb_par *par, unsigned long freq)
 686 {
 687         int m, n, k;
 688         unsigned long f, fi, d, di;
 689         unsigned char lo = 0, hi = 0;
 690
 691         d = 20000;
 692         for (k = 2; k >= 0; k--)
 693                 for (m = 0; m < 63; m++)
 694                         for (n = 0; n < 128; n++) {
 695                                 fi = ((14318l * (n + 8)) / (m + 2)) >> k;
 696                                 if ((di = abs(fi - freq)) < d) {
 697                                         d = di;
 698                                         f = fi;
 699                                         lo = n;
 700                                         hi = (k << 6) | m;
 701                                 }
 702                                 if (fi > freq)
 703                                         break;
 704                         }
 705         if (is3Dchip(par->chip_id)) {
 706                 write3C4(par, ClockHigh, hi);
 707                 write3C4(par, ClockLow, lo);
 708         } else {
 709                 outb(lo, 0x43C8);
 710                 outb(hi, 0x43C9);
 711         }
 712         debug("VCLK = %X %X\n", hi, lo);
 713 }
 714
 715 /* Set number of lines for flat panels*/
 716 static void set_number_of_lines(struct tridentfb_par *par, int lines)
 717 {
 718         int tmp = read3CE(par, CyberEnhance) & 0x8F;
 719         if (lines > 1024)
 720                 tmp |= 0x50;
 721         else if (lines > 768)
 722                 tmp |= 0x30;
 723         else if (lines > 600)
 724                 tmp |= 0x20;
 725         else if (lines > 480)
 726                 tmp |= 0x10;
 727         write3CE(par, CyberEnhance, tmp);
 728 }
 729
 730 /*
 731  * If we see that FP is active we assume we have one.
 732  * Otherwise we have a CRT display. User can override.
 733  */
 734 static int __devinit is_flatpanel(struct tridentfb_par *par)
 735 {
 736         if (fp)
 737                 return 1;
 738         if (crt || !iscyber(par->chip_id))
 739                 return 0;
 740         return (read3CE(par, FPConfig) & 0x10) ? 1 : 0;
 741 }
 742
 743 /* Try detecting the video memory size */
 744 static unsigned int __devinit get_memsize(struct tridentfb_par *par)
 745 {
 746         unsigned char tmp, tmp2;
 747         unsigned int k;
 748
 749         /* If memory size provided by user */
 750         if (memsize)
 751                 k = memsize * Kb;
 752         else
 753                 switch (par->chip_id) {
 754                 case CYBER9525DVD:
 755                         k = 2560 * Kb;
 756                         break;
 757                 default:
 758                         tmp = read3X4(par, SPR) & 0x0F;
 759                         switch (tmp) {
 760
 761                         case 0x01:
 762                                 k = 512 * Kb;
 763                                 break;
 764                         case 0x02:
 765                                 k = 6 * Mb;     /* XP */
 766                                 break;
 767                         case 0x03:
 768                                 k = 1 * Mb;
 769                                 break;
 770                         case 0x04:
 771                                 k = 8 * Mb;
 772                                 break;
 773                         case 0x06:
 774                                 k = 10 * Mb;    /* XP */
 775                                 break;
 776                         case 0x07:
 777                                 k = 2 * Mb;
 778                                 break;
 779                         case 0x08:
 780                                 k = 12 * Mb;    /* XP */
 781                                 break;
 782                         case 0x0A:
 783                                 k = 14 * Mb;    /* XP */
 784                                 break;
 785                         case 0x0C:
 786                                 k = 16 * Mb;    /* XP */
 787                                 break;
 788                         case 0x0E:              /* XP */
 789
 790                                 tmp2 = read3C4(par, 0xC1);
 791                                 switch (tmp2) {
 792                                 case 0x00:
 793                                         k = 20 * Mb;
 794                                         break;
 795                                 case 0x01:
 796                                         k = 24 * Mb;
 797                                         break;
 798                                 case 0x10:
 799                                         k = 28 * Mb;
 800                                         break;
 801                                 case 0x11:
 802                                         k = 32 * Mb;
 803                                         break;
 804                                 default:
 805                                         k = 1 * Mb;
 806                                         break;
 807                                 }
 808                                 break;
 809
 810                         case 0x0F:
 811                                 k = 4 * Mb;
 812                                 break;
 813                         default:
 814                                 k = 1 * Mb;
 815                                 break;
 816                         }
 817                 }
 818
 819         k -= memdiff * Kb;
 820         output("framebuffer size = %d Kb\n", k / Kb);
 821         return k;
 822 }
 823
 824 /* See if we can handle the video mode described in var */
 825 static int tridentfb_check_var(struct fb_var_screeninfo *var,
 826                                struct fb_info *info)
 827 {
 828         struct tridentfb_par *par = info->par;
 829         int bpp = var->bits_per_pixel;
 830         debug("enter\n");
 831
 832         /* check color depth */
 833         if (bpp == 24)
 834                 bpp = var->bits_per_pixel = 32;
 835         /* check whether resolution fits on panel and in memory */
 836         if (par->flatpanel && nativex && var->xres > nativex)
 837                 return -EINVAL;
 838         if (var->xres * var->yres_virtual * bpp / 8 > info->fix.smem_len)
 839                 return -EINVAL;
 840
 841         switch (bpp) {
 842         case 8:
 843                 var->red.offset = 0;
 844                 var->green.offset = 0;
 845                 var->blue.offset = 0;
 846                 var->red.length = 6;
 847                 var->green.length = 6;
 848                 var->blue.length = 6;
 849                 break;
 850         case 16:
 851                 var->red.offset = 11;
 852                 var->green.offset = 5;
 853                 var->blue.offset = 0;
 854                 var->red.length = 5;
 855                 var->green.length = 6;
 856                 var->blue.length = 5;
 857                 break;
 858         case 32:
 859                 var->red.offset = 16;
 860                 var->green.offset = 8;
 861                 var->blue.offset = 0;
 862                 var->red.length = 8;
 863                 var->green.length = 8;
 864                 var->blue.length = 8;
 865                 break;
 866         default:
 867                 return -EINVAL;
 868         }
 869         debug("exit\n");
 870
 871         return 0;
 872
 873 }
 874
 875 /* Pan the display */
 876 static int tridentfb_pan_display(struct fb_var_screeninfo *var,
 877                                  struct fb_info *info)
 878 {
 879         struct tridentfb_par *par = info->par;
 880         unsigned int offset;
 881
 882         debug("enter\n");
 883         offset = (var->xoffset + (var->yoffset * var->xres))
 884                 * var->bits_per_pixel / 32;
 885         info->var.xoffset = var->xoffset;
 886         info->var.yoffset = var->yoffset;
 887         set_screen_start(par, offset);
 888         debug("exit\n");
 889         return 0;
 890 }
 891
 892 static void shadowmode_on(struct tridentfb_par *par)
 893 {
 894         write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81);
 895 }
 896
 897 static void shadowmode_off(struct tridentfb_par *par)
 898 {
 899         write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E);
 900 }
 901
 902 /* Set the hardware to the requested video mode */
 903 static int tridentfb_set_par(struct fb_info *info)
 904 {
 905         struct tridentfb_par *par = (struct tridentfb_par *)(info->par);
 906         u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend;
 907         u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend;
 908         struct fb_var_screeninfo *var = &info->var;
 909         int bpp = var->bits_per_pixel;
 910         unsigned char tmp;
 911         unsigned long vclk;
 912
 913         debug("enter\n");
 914         hdispend = var->xres / 8 - 1;
 915         hsyncstart = (var->xres + var->right_margin) / 8;
 916         hsyncend = var->hsync_len / 8;
 917         htotal =
 918                 (var->xres + var->left_margin + var->right_margin +
 919                  var->hsync_len) / 8 - 10;
 920         hblankstart = hdispend + 1;
 921         hblankend = htotal + 5;
 922
 923         vdispend = var->yres - 1;
 924         vsyncstart = var->yres + var->lower_margin;
 925         vsyncend = var->vsync_len;
 926         vtotal = var->upper_margin + vsyncstart + vsyncend - 2;
 927         vblankstart = var->yres;
 928         vblankend = vtotal + 2;
 929
 930         crtc_unlock(par);
 931         write3CE(par, CyberControl, 8);
 932
 933         if (par->flatpanel && var->xres < nativex) {
 934                 /*
 935                  * on flat panels with native size larger
 936                  * than requested resolution decide whether
 937                  * we stretch or center
 938                  */
 939                 t_outb(par, 0xEB, 0x3C2);
 940
 941                 shadowmode_on(par);
 942
 943                 if (center)
 944                         screen_center(par);
 945                 else if (stretch)
 946                         screen_stretch(par);
 947
 948         } else {
 949                 t_outb(par, 0x2B, 0x3C2);
 950                 write3CE(par, CyberControl, 8);
 951         }
 952
 953         /* vertical timing values */
 954         write3X4(par, CRTVTotal, vtotal & 0xFF);
 955         write3X4(par, CRTVDispEnd, vdispend & 0xFF);
 956         write3X4(par, CRTVSyncStart, vsyncstart & 0xFF);
 957         write3X4(par, CRTVSyncEnd, (vsyncend & 0x0F));
 958         write3X4(par, CRTVBlankStart, vblankstart & 0xFF);
 959         write3X4(par, CRTVBlankEnd, 0 /* p->vblankend & 0xFF */);
 960
 961         /* horizontal timing values */
 962         write3X4(par, CRTHTotal, htotal & 0xFF);
 963         write3X4(par, CRTHDispEnd, hdispend & 0xFF);
 964         write3X4(par, CRTHSyncStart, hsyncstart & 0xFF);
 965         write3X4(par, CRTHSyncEnd,
 966                  (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
 967         write3X4(par, CRTHBlankStart, hblankstart & 0xFF);
 968         write3X4(par, CRTHBlankEnd, 0 /* (p->hblankend & 0x1F) */);
 969
 970         /* higher bits of vertical timing values */
 971         tmp = 0x10;
 972         if (vtotal & 0x100) tmp |= 0x01;
 973         if (vdispend & 0x100) tmp |= 0x02;
 974         if (vsyncstart & 0x100) tmp |= 0x04;
 975         if (vblankstart & 0x100) tmp |= 0x08;
 976
 977         if (vtotal & 0x200) tmp |= 0x20;
 978         if (vdispend & 0x200) tmp |= 0x40;
 979         if (vsyncstart & 0x200) tmp |= 0x80;
 980         write3X4(par, CRTOverflow, tmp);
 981
 982         tmp = read3X4(par, CRTHiOrd) | 0x08;    /* line compare bit 10 */
 983         if (vtotal & 0x400) tmp |= 0x80;
 984         if (vblankstart & 0x400) tmp |= 0x40;
 985         if (vsyncstart & 0x400) tmp |= 0x20;
 986         if (vdispend & 0x400) tmp |= 0x10;
 987         write3X4(par, CRTHiOrd, tmp);
 988
 989         tmp = 0;
 990         if (htotal & 0x800) tmp |= 0x800 >> 11;
 991         if (hblankstart & 0x800) tmp |= 0x800 >> 7;
 992         write3X4(par, HorizOverflow, tmp);
 993
 994         tmp = 0x40;
 995         if (vblankstart & 0x200) tmp |= 0x20;
 996 //FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80;  /* double scan for 200 line modes */
 997         write3X4(par, CRTMaxScanLine, tmp);
 998
 999         write3X4(par, CRTLineCompare, 0xFF);
1000         write3X4(par, CRTPRowScan, 0);
1001         write3X4(par, CRTModeControl, 0xC3);
1002
1003         write3X4(par, LinearAddReg, 0x20);      /* enable linear addressing */
1004
1005         tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80;
1006         /* enable access extended memory */
1007         write3X4(par, CRTCModuleTest, tmp);
1008
1009         /* enable GE for text acceleration */
1010         write3X4(par, GraphEngReg, 0x80);
1011
1012 #ifdef CONFIG_FB_TRIDENT_ACCEL
1013         acc->init_accel(par, info->var.xres, bpp);
1014 #endif
1015
1016         switch (bpp) {
1017         case 8:
1018                 tmp = 0x00;
1019                 break;
1020         case 16:
1021                 tmp = 0x05;
1022                 break;
1023         case 24:
1024                 tmp = 0x29;
1025                 break;
1026         case 32:
1027                 tmp = 0x09;
1028                 break;
1029         }
1030
1031         write3X4(par, PixelBusReg, tmp);
1032
1033         tmp = 0x10;
1034         if (iscyber(par->chip_id))
1035                 tmp |= 0x20;
1036         write3X4(par, DRAMControl, tmp);        /* both IO, linear enable */
1037
1038         write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40);
1039         write3X4(par, Performance, 0x92);
1040         /* MMIO & PCI read and write burst enable */
1041         write3X4(par, PCIReg, 0x07);
1042
1043         /* convert from picoseconds to kHz */
1044         vclk = PICOS2KHZ(info->var.pixclock);
1045         if (bpp == 32)
1046                 vclk *= 2;
1047         set_vclk(par, vclk);
1048
1049         write3C4(par, 0, 3);
1050         write3C4(par, 1, 1);            /* set char clock 8 dots wide */
1051         /* enable 4 maps because needed in chain4 mode */
1052         write3C4(par, 2, 0x0F);
1053         write3C4(par, 3, 0);
1054         write3C4(par, 4, 0x0E); /* memory mode enable bitmaps ?? */
1055
1056         /* divide clock by 2 if 32bpp chain4 mode display and CPU path */
1057         write3CE(par, MiscExtFunc, (bpp == 32) ? 0x1A : 0x12);
1058         write3CE(par, 0x5, 0x40);       /* no CGA compat, allow 256 col */
1059         write3CE(par, 0x6, 0x05);       /* graphics mode */
1060         write3CE(par, 0x7, 0x0F);       /* planes? */
1061
1062         if (par->chip_id == CYBERBLADEXPAi1) {
1063                 /* This fixes snow-effect in 32 bpp */
1064                 write3X4(par, CRTHSyncStart, 0x84);
1065         }
1066
1067         /* graphics mode and support 256 color modes */
1068         writeAttr(par, 0x10, 0x41);
1069         writeAttr(par, 0x12, 0x0F);     /* planes */
1070         writeAttr(par, 0x13, 0);        /* horizontal pel panning */
1071
1072         /* colors */
1073         for (tmp = 0; tmp < 0x10; tmp++)
1074                 writeAttr(par, tmp, tmp);
1075         fb_readb(par->io_virt + CRT + 0x0A);    /* flip-flop to index */
1076         t_outb(par, 0x20, 0x3C0);               /* enable attr */
1077
1078         switch (bpp) {
1079         case 8:
1080                 tmp = 0;
1081                 break;
1082         case 15:
1083                 tmp = 0x10;
1084                 break;
1085         case 16:
1086                 tmp = 0x30;
1087                 break;
1088         case 24:
1089         case 32:
1090                 tmp = 0xD0;
1091                 break;
1092         }
1093
1094         t_inb(par, 0x3C8);
1095         t_inb(par, 0x3C6);
1096         t_inb(par, 0x3C6);
1097         t_inb(par, 0x3C6);
1098         t_inb(par, 0x3C6);
1099         t_outb(par, tmp, 0x3C6);
1100         t_inb(par, 0x3C8);
1101
1102         if (par->flatpanel)
1103                 set_number_of_lines(par, info->var.yres);
1104         set_lwidth(par, info->var.xres * bpp / (4 * 16));
1105         info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
1106         info->fix.line_length = info->var.xres * (bpp >> 3);
1107         info->cmap.len = (bpp == 8) ? 256 : 16;
1108         debug("exit\n");
1109         return 0;
1110 }
1111
1112 /* Set one color register */
1113 static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1114                                unsigned blue, unsigned transp,
1115                                struct fb_info *info)
1116 {
1117         int bpp = info->var.bits_per_pixel;
1118         struct tridentfb_par *par = info->par;
1119
1120         if (regno >= info->cmap.len)
1121                 return 1;
1122
1123         if (bpp == 8) {
1124                 t_outb(par, 0xFF, 0x3C6);
1125                 t_outb(par, regno, 0x3C8);
1126
1127                 t_outb(par, red >> 10, 0x3C9);
1128                 t_outb(par, green >> 10, 0x3C9);
1129                 t_outb(par, blue >> 10, 0x3C9);
1130
1131         } else if (regno < 16) {
1132                 if (bpp == 16) {        /* RGB 565 */
1133                         u32 col;
1134
1135                         col = (red & 0xF800) | ((green & 0xFC00) >> 5) |
1136                                 ((blue & 0xF800) >> 11);
1137                         col |= col << 16;
1138                         ((u32 *)(info->pseudo_palette))[regno] = col;
1139                 } else if (bpp == 32)           /* ARGB 8888 */
1140                         ((u32*)info->pseudo_palette)[regno] =
1141                                 ((transp & 0xFF00) << 16)       |
1142                                 ((red & 0xFF00) << 8)           |
1143                                 ((green & 0xFF00))              |
1144                                 ((blue & 0xFF00) >> 8);
1145         }
1146
1147 /*      debug("exit\n"); */
1148         return 0;
1149 }
1150
1151 /* Try blanking the screen.For flat panels it does nothing */
1152 static int tridentfb_blank(int blank_mode, struct fb_info *info)
1153 {
1154         unsigned char PMCont, DPMSCont;
1155         struct tridentfb_par *par = info->par;
1156
1157         debug("enter\n");
1158         if (par->flatpanel)
1159                 return 0;
1160         t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */
1161         PMCont = t_inb(par, 0x83C6) & 0xFC;
1162         DPMSCont = read3CE(par, PowerStatus) & 0xFC;
1163         switch (blank_mode) {
1164         case FB_BLANK_UNBLANK:
1165                 /* Screen: On, HSync: On, VSync: On */
1166         case FB_BLANK_NORMAL:
1167                 /* Screen: Off, HSync: On, VSync: On */
1168                 PMCont |= 0x03;
1169                 DPMSCont |= 0x00;
1170                 break;
1171         case FB_BLANK_HSYNC_SUSPEND:
1172                 /* Screen: Off, HSync: Off, VSync: On */
1173                 PMCont |= 0x02;
1174                 DPMSCont |= 0x01;
1175                 break;
1176         case FB_BLANK_VSYNC_SUSPEND:
1177                 /* Screen: Off, HSync: On, VSync: Off */
1178                 PMCont |= 0x02;
1179                 DPMSCont |= 0x02;
1180                 break;
1181         case FB_BLANK_POWERDOWN:
1182                 /* Screen: Off, HSync: Off, VSync: Off */
1183                 PMCont |= 0x00;
1184                 DPMSCont |= 0x03;
1185                 break;
1186         }
1187
1188         write3CE(par, PowerStatus, DPMSCont);
1189         t_outb(par, 4, 0x83C8);
1190         t_outb(par, PMCont, 0x83C6);
1191
1192         debug("exit\n");
1193
1194         /* let fbcon do a softblank for us */
1195         return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
1196 }
1197
1198 static struct fb_ops tridentfb_ops = {
1199         .owner = THIS_MODULE,
1200         .fb_setcolreg = tridentfb_setcolreg,
1201         .fb_pan_display = tridentfb_pan_display,
1202         .fb_blank = tridentfb_blank,
1203         .fb_check_var = tridentfb_check_var,
1204         .fb_set_par = tridentfb_set_par,
1205         .fb_fillrect = tridentfb_fillrect,
1206         .fb_copyarea = tridentfb_copyarea,
1207         .fb_imageblit = cfb_imageblit,
1208 };
1209
1210 static int __devinit trident_pci_probe(struct pci_dev *dev,
1211                                        const struct pci_device_id *id)
1212 {
1213         int err;
1214         unsigned char revision;
1215         struct fb_info *info;
1216         struct tridentfb_par *default_par;
1217         int defaultaccel;
1218         int chip3D;
1219         int chip_id;
1220
1221         err = pci_enable_device(dev);
1222         if (err)
1223                 return err;
1224
1225         info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev);
1226         if (!info)
1227                 return -ENOMEM;
1228         default_par = info->par;
1229
1230         chip_id = id->device;
1231
1232         if (chip_id == CYBERBLADEi1)
1233                 output("*** Please do use cyblafb, Cyberblade/i1 support "
1234                        "will soon be removed from tridentfb!\n");
1235
1236
1237         /* If PCI id is 0x9660 then further detect chip type */
1238
1239         if (chip_id == TGUI9660) {
1240                 outb(RevisionID, 0x3C4);
1241                 revision = inb(0x3C5);
1242
1243                 switch (revision) {
1244                 case 0x22:
1245                 case 0x23:
1246                         chip_id = CYBER9397;
1247                         break;
1248                 case 0x2A:
1249                         chip_id = CYBER9397DVD;
1250                         break;
1251                 case 0x30:
1252                 case 0x33:
1253                 case 0x34:
1254                 case 0x35:
1255                 case 0x38:
1256                 case 0x3A:
1257                 case 0xB3:
1258                         chip_id = CYBER9385;
1259                         break;
1260                 case 0x40 ... 0x43:
1261                         chip_id = CYBER9382;
1262                         break;
1263                 case 0x4A:
1264                         chip_id = CYBER9388;
1265                         break;
1266                 default:
1267                         break;
1268                 }
1269         }
1270
1271         chip3D = is3Dchip(chip_id);
1272
1273         if (is_xp(chip_id)) {
1274                 acc = &accel_xp;
1275         } else if (is_blade(chip_id)) {
1276                 acc = &accel_blade;
1277         } else {
1278                 acc = &accel_image;
1279         }
1280
1281         default_par->chip_id = chip_id;
1282
1283         /* acceleration is on by default for 3D chips */
1284         defaultaccel = chip3D && !noaccel;
1285
1286         /* setup MMIO region */
1287         tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
1288         tridentfb_fix.mmio_len = chip3D ? 0x20000 : 0x10000;
1289
1290         if (!request_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len, "tridentfb")) {
1291                 debug("request_region failed!\n");
1292                 return -1;
1293         }
1294
1295         default_par->io_virt = ioremap_nocache(tridentfb_fix.mmio_start,
1296                                                tridentfb_fix.mmio_len);
1297
1298         if (!default_par->io_virt) {
1299                 debug("ioremap failed\n");
1300                 err = -1;
1301                 goto out_unmap1;
1302         }
1303
1304         enable_mmio();
1305
1306         /* setup framebuffer memory */
1307         tridentfb_fix.smem_start = pci_resource_start(dev, 0);
1308         tridentfb_fix.smem_len = get_memsize(default_par);
1309
1310         if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) {
1311                 debug("request_mem_region failed!\n");
1312                 disable_mmio(info->par);
1313                 err = -1;
1314                 goto out_unmap1;
1315         }
1316
1317         info->screen_base = ioremap_nocache(tridentfb_fix.smem_start,
1318                                             tridentfb_fix.smem_len);
1319
1320         if (!info->screen_base) {
1321                 debug("ioremap failed\n");
1322                 err = -1;
1323                 goto out_unmap2;
1324         }
1325
1326         output("%s board found\n", pci_name(dev));
1327         default_par->flatpanel = is_flatpanel(default_par);
1328
1329         if (default_par->flatpanel)
1330                 nativex = get_nativex(default_par);
1331
1332         info->fix = tridentfb_fix;
1333         info->fbops = &tridentfb_ops;
1334
1335
1336         info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1337 #ifdef CONFIG_FB_TRIDENT_ACCEL
1338         info->flags |= FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
1339 #endif
1340         if (!fb_find_mode(&info->var, info,
1341                           mode_option, NULL, 0, NULL, bpp)) {
1342                 err = -EINVAL;
1343                 goto out_unmap2;
1344         }
1345         err = fb_alloc_cmap(&info->cmap, 256, 0);
1346         if (err < 0)
1347                 goto out_unmap2;
1348
1349         if (defaultaccel && acc)
1350                 info->var.accel_flags |= FB_ACCELF_TEXT;
1351         else
1352                 info->var.accel_flags &= ~FB_ACCELF_TEXT;
1353         info->var.activate |= FB_ACTIVATE_NOW;
1354         info->device = &dev->dev;
1355         if (register_framebuffer(info) < 0) {
1356                 printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n");
1357                 fb_dealloc_cmap(&info->cmap);
1358                 err = -EINVAL;
1359                 goto out_unmap2;
1360         }
1361         output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
1362            info->node, info->fix.id, info->var.xres,
1363            info->var.yres, info->var.bits_per_pixel);
1364
1365         pci_set_drvdata(dev, info);
1366         return 0;
1367
1368 out_unmap2:
1369         if (info->screen_base)
1370                 iounmap(info->screen_base);
1371         release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1372         disable_mmio(info->par);
1373 out_unmap1:
1374         if (default_par->io_virt)
1375                 iounmap(default_par->io_virt);
1376         release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1377         framebuffer_release(info);
1378         return err;
1379 }
1380
1381 static void __devexit trident_pci_remove(struct pci_dev *dev)
1382 {
1383         struct fb_info *info = pci_get_drvdata(dev);
1384         struct tridentfb_par *par = info->par;
1385
1386         unregister_framebuffer(info);
1387         iounmap(par->io_virt);
1388         iounmap(info->screen_base);
1389         release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1390         release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1391         pci_set_drvdata(dev, NULL);
1392         framebuffer_release(info);
1393 }
1394
1395 /* List of boards that we are trying to support */
1396 static struct pci_device_id trident_devices[] = {
1397         {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1398         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1399         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1400         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1401         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1402         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1403         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1404         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1405         {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1406         {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1407         {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1408         {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1409         {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1410         {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1411         {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1412         {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1413         {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1414         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1415         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1416         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1417         {0,}
1418 };
1419
1420 MODULE_DEVICE_TABLE(pci, trident_devices);
1421
1422 static struct pci_driver tridentfb_pci_driver = {
1423         .name = "tridentfb",
1424         .id_table = trident_devices,
1425         .probe = trident_pci_probe,
1426         .remove = __devexit_p(trident_pci_remove)
1427 };
1428
1429 /*
1430  * Parse user specified options (`video=trident:')
1431  * example:
1432  *      video=trident:800x600,bpp=16,noaccel
1433  */
1434 #ifndef MODULE
1435 static int __init tridentfb_setup(char *options)
1436 {
1437         char *opt;
1438         if (!options || !*options)
1439                 return 0;
1440         while ((opt = strsep(&options, ",")) != NULL) {
1441                 if (!*opt)
1442                         continue;
1443                 if (!strncmp(opt, "noaccel", 7))
1444                         noaccel = 1;
1445                 else if (!strncmp(opt, "fp", 2))
1446                         fp = 1;
1447                 else if (!strncmp(opt, "crt", 3))
1448                         fp = 0;
1449                 else if (!strncmp(opt, "bpp=", 4))
1450                         bpp = simple_strtoul(opt + 4, NULL, 0);
1451                 else if (!strncmp(opt, "center", 6))
1452                         center = 1;
1453                 else if (!strncmp(opt, "stretch", 7))
1454                         stretch = 1;
1455                 else if (!strncmp(opt, "memsize=", 8))
1456                         memsize = simple_strtoul(opt + 8, NULL, 0);
1457                 else if (!strncmp(opt, "memdiff=", 8))
1458                         memdiff = simple_strtoul(opt + 8, NULL, 0);
1459                 else if (!strncmp(opt, "nativex=", 8))
1460                         nativex = simple_strtoul(opt + 8, NULL, 0);
1461                 else
1462                         mode_option = opt;
1463         }
1464         return 0;
1465 }
1466 #endif
1467
1468 static int __init tridentfb_init(void)
1469 {
1470 #ifndef MODULE
1471         char *option = NULL;
1472
1473         if (fb_get_options("tridentfb", &option))
1474                 return -ENODEV;
1475         tridentfb_setup(option);
1476 #endif
1477         output("Trident framebuffer %s initializing\n", VERSION);
1478         return pci_register_driver(&tridentfb_pci_driver);
1479 }
1480
1481 static void __exit tridentfb_exit(void)
1482 {
1483         pci_unregister_driver(&tridentfb_pci_driver);
1484 }
1485
1486 module_init(tridentfb_init);
1487 module_exit(tridentfb_exit);
1488
1489 MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
1490 MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
1491 MODULE_LICENSE("GPL");
1492