git.oblomov.eu Git - linux-2.6/blob - 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 by Alan Hourihane
  11  *      the FreeVGA project
  12  *      Francesco Salvestrini <salvestrini@users.sf.net> XP support,code,suggestions
  13  * TODO:
  14  *      timing value tweaking so it looks good on every monitor in every mode
  15  *      TGUI acceleration
  16  */
  17
  18 #include <linux/config.h>
  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         "0.7.8-NEWAPI"
  28
  29 struct tridentfb_par {
  30         int vclk;               //in MHz
  31         void __iomem * io_virt; //iospace virtual memory address
  32 };
  33
  34 static unsigned char eng_oper;          //engine operation...
  35 static struct fb_ops tridentfb_ops;
  36
  37 static struct tridentfb_par default_par;
  38
  39 /* FIXME:kmalloc these 3 instead */
  40 static struct fb_info fb_info;
  41 static u32 pseudo_pal[16];
  42
  43
  44 static struct fb_var_screeninfo default_var;
  45
  46 static struct fb_fix_screeninfo tridentfb_fix = {
  47         .id = "Trident",
  48         .type = FB_TYPE_PACKED_PIXELS,
  49         .ypanstep = 1,
  50         .visual = FB_VISUAL_PSEUDOCOLOR,
  51         .accel = FB_ACCEL_NONE,
  52 };
  53
  54 static int chip_id;
  55
  56 static int defaultaccel;
  57 static int displaytype;
  58
  59
  60 /* defaults which are normally overriden by user values */
  61
  62 /* video mode */
  63 static char * mode = "640x480";
  64 static int bpp = 8;
  65
  66 static int noaccel;
  67
  68 static int center;
  69 static int stretch;
  70
  71 static int fp;
  72 static int crt;
  73
  74 static int memsize;
  75 static int memdiff;
  76 static int nativex;
  77
  78
  79 module_param(mode, charp, 0);
  80 module_param(bpp, int, 0);
  81 module_param(center, int, 0);
  82 module_param(stretch, int, 0);
  83 module_param(noaccel, int, 0);
  84 module_param(memsize, int, 0);
  85 module_param(memdiff, int, 0);
  86 module_param(nativex, int, 0);
  87 module_param(fp, int, 0);
  88 module_param(crt, int, 0);
  89
  90
  91 static int chip3D;
  92 static int chipcyber;
  93
  94 static int is3Dchip(int id)
  95 {
  96         return  ((id == BLADE3D) || (id == CYBERBLADEE4) ||
  97                  (id == CYBERBLADEi7) || (id == CYBERBLADEi7D) ||
  98                  (id == CYBER9397) || (id == CYBER9397DVD) ||
  99                  (id == CYBER9520) || (id == CYBER9525DVD) ||
 100                  (id == IMAGE975) || (id == IMAGE985) ||
 101                  (id == CYBERBLADEi1) || (id == CYBERBLADEi1D) ||
 102                  (id == CYBERBLADEAi1) || (id == CYBERBLADEAi1D) ||
 103                  (id == CYBERBLADEXPm8) || (id == CYBERBLADEXPm16) ||
 104                  (id == CYBERBLADEXPAi1));
 105 }
 106
 107 static int iscyber(int id)
 108 {
 109         switch (id) {
 110                 case CYBER9388:
 111                 case CYBER9382:
 112                 case CYBER9385:
 113                 case CYBER9397:
 114                 case CYBER9397DVD:
 115                 case CYBER9520:
 116                 case CYBER9525DVD:
 117                 case CYBERBLADEE4:
 118                 case CYBERBLADEi7D:
 119                 case CYBERBLADEi1:
 120                 case CYBERBLADEi1D:
 121                 case CYBERBLADEAi1:
 122                 case CYBERBLADEAi1D:
 123                 case CYBERBLADEXPAi1:
 124                         return 1;
 125
 126                 case CYBER9320:
 127                 case TGUI9660:
 128                 case IMAGE975:
 129                 case IMAGE985:
 130                 case BLADE3D:
 131                 case CYBERBLADEi7: /* VIA MPV4 integrated version */
 132
 133                 default:
 134                         /* case CYBERBLDAEXPm8:  Strange */
 135                         /* case CYBERBLDAEXPm16: Strange */
 136                         return 0;
 137         }
 138 }
 139
 140 #define CRT 0x3D0               //CRTC registers offset for color display
 141
 142 #ifndef TRIDENT_MMIO
 143         #define TRIDENT_MMIO 1
 144 #endif
 145
 146 #if TRIDENT_MMIO
 147         #define t_outb(val,reg) writeb(val,((struct tridentfb_par *)(fb_info.par))->io_virt + reg)
 148         #define t_inb(reg)      readb(((struct tridentfb_par*)(fb_info.par))->io_virt + reg)
 149 #else
 150         #define t_outb(val,reg) outb(val,reg)
 151         #define t_inb(reg) inb(reg)
 152 #endif
 153
 154
 155 static struct accel_switch {
 156         void (*init_accel)(int,int);
 157         void (*wait_engine)(void);
 158         void (*fill_rect)(__u32,__u32,__u32,__u32,__u32,__u32);
 159         void (*copy_rect)(__u32,__u32,__u32,__u32,__u32,__u32);
 160 } *acc;
 161
 162 #define writemmr(r,v)   writel(v, ((struct tridentfb_par *)fb_info.par)->io_virt + r)
 163 #define readmmr(r)      readl(((struct tridentfb_par *)fb_info.par)->io_virt + r)
 164
 165
 166
 167 /*
 168  * Blade specific acceleration.
 169  */
 170
 171 #define point(x,y) ((y)<<16|(x))
 172 #define STA     0x2120
 173 #define CMD     0x2144
 174 #define ROP     0x2148
 175 #define CLR     0x2160
 176 #define SR1     0x2100
 177 #define SR2     0x2104
 178 #define DR1     0x2108
 179 #define DR2     0x210C
 180
 181 #define ROP_S   0xCC
 182
 183 static void blade_init_accel(int pitch,int bpp)
 184 {
 185         int v1 = (pitch>>3)<<20;
 186         int tmp = 0,v2;
 187         switch (bpp) {
 188                 case 8:tmp = 0;break;
 189                 case 15:tmp = 5;break;
 190                 case 16:tmp = 1;break;
 191                 case 24:
 192                 case 32:tmp = 2;break;
 193         }
 194         v2 = v1 | (tmp<<29);
 195         writemmr(0x21C0,v2);
 196         writemmr(0x21C4,v2);
 197         writemmr(0x21B8,v2);
 198         writemmr(0x21BC,v2);
 199         writemmr(0x21D0,v1);
 200         writemmr(0x21D4,v1);
 201         writemmr(0x21C8,v1);
 202         writemmr(0x21CC,v1);
 203         writemmr(0x216C,0);
 204 }
 205
 206 static void blade_wait_engine(void)
 207 {
 208         while(readmmr(STA) & 0xFA800000);
 209 }
 210
 211 static void blade_fill_rect(__u32 x,__u32 y,__u32 w,__u32 h,__u32 c,__u32 rop)
 212 {
 213         writemmr(CLR,c);
 214         writemmr(ROP,rop ? 0x66:ROP_S);
 215         writemmr(CMD,0x20000000|1<<19|1<<4|2<<2);
 216
 217         writemmr(DR1,point(x,y));
 218         writemmr(DR2,point(x+w-1,y+h-1));
 219 }
 220
 221 static void blade_copy_rect(__u32 x1,__u32 y1,__u32 x2,__u32 y2,__u32 w,__u32 h)
 222 {
 223         __u32 s1,s2,d1,d2;
 224         int direction = 2;
 225         s1 = point(x1,y1);
 226         s2 = point(x1+w-1,y1+h-1);
 227         d1 = point(x2,y2);
 228         d2 = point(x2+w-1,y2+h-1);
 229
 230         if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
 231                         direction = 0;
 232
 233
 234         writemmr(ROP,ROP_S);
 235         writemmr(CMD,0xE0000000|1<<19|1<<4|1<<2|direction);
 236
 237         writemmr(SR1,direction?s2:s1);
 238         writemmr(SR2,direction?s1:s2);
 239         writemmr(DR1,direction?d2:d1);
 240         writemmr(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 /*
 252  * BladeXP specific acceleration functions
 253  */
 254
 255 #define ROP_P 0xF0
 256 #define masked_point(x,y) ((y & 0xffff)<<16|(x & 0xffff))
 257
 258 static void xp_init_accel(int pitch,int bpp)
 259 {
 260         int tmp = 0,v1;
 261         unsigned char x = 0;
 262
 263         switch (bpp) {
 264                 case 8:  x = 0; break;
 265                 case 16: x = 1; break;
 266                 case 24: x = 3; break;
 267                 case 32: x = 2; break;
 268         }
 269
 270         switch (pitch << (bpp >> 3)) {
 271                 case 8192:
 272                 case 512:  x |= 0x00; break;
 273                 case 1024: x |= 0x04; break;
 274                 case 2048: x |= 0x08; break;
 275                 case 4096: x |= 0x0C; break;
 276         }
 277
 278         t_outb(x,0x2125);
 279
 280         eng_oper = x | 0x40;
 281
 282         switch (bpp) {
 283                 case 8:  tmp = 18; break;
 284                 case 15:
 285                 case 16: tmp = 19; break;
 286                 case 24:
 287                 case 32: tmp = 20; break;
 288         }
 289
 290         v1 = pitch << tmp;
 291
 292         writemmr(0x2154,v1);
 293         writemmr(0x2150,v1);
 294         t_outb(3,0x2126);
 295 }
 296
 297 static void xp_wait_engine(void)
 298 {
 299         int busy;
 300         int count, timeout;
 301
 302         count = 0;
 303         timeout = 0;
 304         for (;;) {
 305                 busy = t_inb(STA) & 0x80;
 306                 if (busy != 0x80)
 307                         return;
 308                 count++;
 309                 if (count == 10000000) {
 310                         /* Timeout */
 311                         count = 9990000;
 312                         timeout++;
 313                         if (timeout == 8) {
 314                                 /* Reset engine */
 315                                 t_outb(0x00, 0x2120);
 316                                 return;
 317                         }
 318                 }
 319         }
 320 }
 321
 322 static void xp_fill_rect(__u32 x,__u32 y,__u32 w,__u32 h,__u32 c,__u32 rop)
 323 {
 324         writemmr(0x2127,ROP_P);
 325         writemmr(0x2158,c);
 326         writemmr(0x2128,0x4000);
 327         writemmr(0x2140,masked_point(h,w));
 328         writemmr(0x2138,masked_point(y,x));
 329         t_outb(0x01,0x2124);
 330         t_outb(eng_oper,0x2125);
 331 }
 332
 333 static void xp_copy_rect(__u32 x1,__u32 y1,__u32 x2,__u32 y2,__u32 w,__u32 h)
 334 {
 335         int direction;
 336         __u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
 337
 338         direction = 0x0004;
 339
 340         if ((x1 < x2) && (y1 == y2)) {
 341                 direction |= 0x0200;
 342                 x1_tmp = x1 + w - 1;
 343                 x2_tmp = x2 + w - 1;
 344         } else {
 345                 x1_tmp = x1;
 346                 x2_tmp = x2;
 347         }
 348
 349         if (y1 < y2) {
 350                 direction |= 0x0100;
 351                 y1_tmp = y1 + h - 1;
 352                 y2_tmp = y2 + h - 1;
 353         } else {
 354                 y1_tmp = y1;
 355                 y2_tmp = y2;
 356         }
 357
 358         writemmr(0x2128,direction);
 359         t_outb(ROP_S,0x2127);
 360         writemmr(0x213C,masked_point(y1_tmp,x1_tmp));
 361         writemmr(0x2138,masked_point(y2_tmp,x2_tmp));
 362         writemmr(0x2140,masked_point(h,w));
 363         t_outb(0x01,0x2124);
 364 }
 365
 366 static struct accel_switch accel_xp = {
 367         xp_init_accel,
 368         xp_wait_engine,
 369         xp_fill_rect,
 370         xp_copy_rect,
 371 };
 372
 373
 374 /*
 375  * Image specific acceleration functions
 376  */
 377 static void image_init_accel(int pitch,int bpp)
 378 {
 379         int tmp = 0;
 380         switch (bpp) {
 381                 case 8:tmp = 0;break;
 382                 case 15:tmp = 5;break;
 383                 case 16:tmp = 1;break;
 384                 case 24:
 385                 case 32:tmp = 2;break;
 386         }
 387         writemmr(0x2120, 0xF0000000);
 388         writemmr(0x2120, 0x40000000|tmp);
 389         writemmr(0x2120, 0x80000000);
 390         writemmr(0x2144, 0x00000000);
 391         writemmr(0x2148, 0x00000000);
 392         writemmr(0x2150, 0x00000000);
 393         writemmr(0x2154, 0x00000000);
 394         writemmr(0x2120, 0x60000000|(pitch<<16) |pitch);
 395         writemmr(0x216C, 0x00000000);
 396         writemmr(0x2170, 0x00000000);
 397         writemmr(0x217C, 0x00000000);
 398         writemmr(0x2120, 0x10000000);
 399         writemmr(0x2130, (2047 << 16) | 2047);
 400 }
 401
 402 static void image_wait_engine(void)
 403 {
 404         while(readmmr(0x2164) & 0xF0000000);
 405 }
 406
 407 static void image_fill_rect(__u32 x, __u32 y, __u32 w, __u32 h, __u32 c, __u32 rop)
 408 {
 409         writemmr(0x2120,0x80000000);
 410         writemmr(0x2120,0x90000000|ROP_S);
 411
 412         writemmr(0x2144,c);
 413
 414         writemmr(DR1,point(x,y));
 415         writemmr(DR2,point(x+w-1,y+h-1));
 416
 417         writemmr(0x2124,0x80000000|3<<22|1<<10|1<<9);
 418 }
 419
 420 static void image_copy_rect(__u32 x1,__u32 y1,__u32 x2,__u32 y2,__u32 w,__u32 h)
 421 {
 422         __u32 s1,s2,d1,d2;
 423         int direction = 2;
 424         s1 = point(x1,y1);
 425         s2 = point(x1+w-1,y1+h-1);
 426         d1 = point(x2,y2);
 427         d2 = point(x2+w-1,y2+h-1);
 428
 429         if ((y1 > y2) || ((y1 == y2) && (x1 >x2)))
 430                         direction = 0;
 431
 432         writemmr(0x2120,0x80000000);
 433         writemmr(0x2120,0x90000000|ROP_S);
 434
 435         writemmr(SR1,direction?s2:s1);
 436         writemmr(SR2,direction?s1:s2);
 437         writemmr(DR1,direction?d2:d1);
 438         writemmr(DR2,direction?d1:d2);
 439         writemmr(0x2124,0x80000000|1<<22|1<<10|1<<7|direction);
 440 }
 441
 442
 443 static struct accel_switch accel_image = {
 444         image_init_accel,
 445         image_wait_engine,
 446         image_fill_rect,
 447         image_copy_rect,
 448 };
 449
 450 /*
 451  * Accel functions called by the upper layers
 452  */
 453 #ifdef CONFIG_FB_TRIDENT_ACCEL
 454 static void tridentfb_fillrect(struct fb_info * info, const struct fb_fillrect *fr)
 455 {
 456         int bpp = info->var.bits_per_pixel;
 457         int col = 0;
 458
 459         switch (bpp) {
 460                 default:
 461                 case 8: col |= fr->color;
 462                         col |= col << 8;
 463                         col |= col << 16;
 464                         break;
 465                 case 16: col = ((u32 *)(info->pseudo_palette))[fr->color];
 466
 467                          break;
 468                 case 32: col = ((u32 *)(info->pseudo_palette))[fr->color];
 469                          break;
 470         }
 471
 472         acc->fill_rect(fr->dx, fr->dy, fr->width, fr->height, col, fr->rop);
 473         acc->wait_engine();
 474 }
 475 static void tridentfb_copyarea(struct fb_info *info, const struct fb_copyarea *ca)
 476 {
 477         acc->copy_rect(ca->sx,ca->sy,ca->dx,ca->dy,ca->width,ca->height);
 478         acc->wait_engine();
 479 }
 480 #else /* !CONFIG_FB_TRIDENT_ACCEL */
 481 #define tridentfb_fillrect cfb_fillrect
 482 #define tridentfb_copyarea cfb_copyarea
 483 #endif /* CONFIG_FB_TRIDENT_ACCEL */
 484
 485
 486 /*
 487  * Hardware access functions
 488  */
 489
 490 static inline unsigned char read3X4(int reg)
 491 {
 492         struct tridentfb_par * par = (struct tridentfb_par *)fb_info.par;
 493         writeb(reg, par->io_virt + CRT + 4);
 494         return readb( par->io_virt + CRT + 5);
 495 }
 496
 497 static inline void write3X4(int reg, unsigned char val)
 498 {
 499         struct tridentfb_par * par = (struct tridentfb_par *)fb_info.par;
 500         writeb(reg, par->io_virt + CRT + 4);
 501         writeb(val, par->io_virt + CRT + 5);
 502 }
 503
 504 static inline unsigned char read3C4(int reg)
 505 {
 506         t_outb(reg, 0x3C4);
 507         return t_inb(0x3C5);
 508 }
 509
 510 static inline void write3C4(int reg, unsigned char val)
 511 {
 512         t_outb(reg, 0x3C4);
 513         t_outb(val, 0x3C5);
 514 }
 515
 516 static inline unsigned char read3CE(int reg)
 517 {
 518         t_outb(reg, 0x3CE);
 519         return t_inb(0x3CF);
 520 }
 521
 522 static inline void writeAttr(int reg, unsigned char val)
 523 {
 524         readb(((struct tridentfb_par *)fb_info.par)->io_virt + CRT + 0x0A);     //flip-flop to index
 525         t_outb(reg, 0x3C0);
 526         t_outb(val, 0x3C0);
 527 }
 528
 529 static inline void write3CE(int reg, unsigned char val)
 530 {
 531         t_outb(reg, 0x3CE);
 532         t_outb(val, 0x3CF);
 533 }
 534
 535 static inline void enable_mmio(void)
 536 {
 537         /* Goto New Mode */
 538         outb(0x0B, 0x3C4);
 539         inb(0x3C5);
 540
 541         /* Unprotect registers */
 542         outb(NewMode1, 0x3C4);
 543         outb(0x80, 0x3C5);
 544
 545         /* Enable MMIO */
 546         outb(PCIReg, 0x3D4);
 547         outb(inb(0x3D5) | 0x01, 0x3D5);
 548 }
 549
 550
 551 #define crtc_unlock()   write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F)
 552
 553 /*  Return flat panel's maximum x resolution */
 554 static int __init get_nativex(void)
 555 {
 556         int x,y,tmp;
 557
 558         if (nativex)
 559                 return nativex;
 560
 561         tmp = (read3CE(VertStretch) >> 4) & 3;
 562
 563         switch (tmp) {
 564                 case 0: x = 1280; y = 1024; break;
 565                 case 2: x = 1024; y = 768;  break;
 566                 case 3: x = 800;  y = 600;  break;
 567                 case 4: x = 1400; y = 1050; break;
 568                 case 1:
 569                 default:x = 640;  y = 480;  break;
 570         }
 571
 572         output("%dx%d flat panel found\n", x, y);
 573         return x;
 574 }
 575
 576 /* Set pitch */
 577 static void set_lwidth(int width)
 578 {
 579         write3X4(Offset, width & 0xFF);
 580         write3X4(AddColReg, (read3X4(AddColReg) & 0xCF) | ((width & 0x300) >>4));
 581 }
 582
 583 /* For resolutions smaller than FP resolution stretch */
 584 static void screen_stretch(void)
 585 {
 586         if (chip_id != CYBERBLADEXPAi1)
 587                 write3CE(BiosReg,0);
 588         else
 589                 write3CE(BiosReg,8);
 590         write3CE(VertStretch,(read3CE(VertStretch) & 0x7C) | 1);
 591         write3CE(HorStretch,(read3CE(HorStretch) & 0x7C) | 1);
 592 }
 593
 594 /* For resolutions smaller than FP resolution center */
 595 static void screen_center(void)
 596 {
 597         write3CE(VertStretch,(read3CE(VertStretch) & 0x7C) | 0x80);
 598         write3CE(HorStretch,(read3CE(HorStretch) & 0x7C) | 0x80);
 599 }
 600
 601 /* Address of first shown pixel in display memory */
 602 static void set_screen_start(int base)
 603 {
 604         write3X4(StartAddrLow, base & 0xFF);
 605         write3X4(StartAddrHigh, (base & 0xFF00) >> 8);
 606         write3X4(CRTCModuleTest, (read3X4(CRTCModuleTest) & 0xDF) | ((base & 0x10000) >> 11));
 607         write3X4(CRTHiOrd, (read3X4(CRTHiOrd) & 0xF8) | ((base & 0xE0000) >> 17));
 608 }
 609
 610 /* Use 20.12 fixed-point for NTSC value and frequency calculation */
 611 #define calc_freq(n,m,k)  ( ((unsigned long)0xE517 * (n+8) / ((m+2)*(1<<k))) >> 12 )
 612
 613 /* Set dotclock frequency */
 614 static void set_vclk(int freq)
 615 {
 616         int m,n,k;
 617         int f,fi,d,di;
 618         unsigned char lo=0,hi=0;
 619
 620         d = 20;
 621         for(k = 2;k>=0;k--)
 622         for(m = 0;m<63;m++)
 623         for(n = 0;n<128;n++) {
 624                 fi = calc_freq(n,m,k);
 625                 if ((di = abs(fi - freq)) < d) {
 626                         d = di;
 627                         f = fi;
 628                         lo = n;
 629                         hi = (k<<6) | m;
 630                 }
 631         }
 632         if (chip3D) {
 633                 write3C4(ClockHigh,hi);
 634                 write3C4(ClockLow,lo);
 635         } else {
 636                 outb(lo,0x43C8);
 637                 outb(hi,0x43C9);
 638         }
 639         debug("VCLK = %X %X\n",hi,lo);
 640 }
 641
 642 /* Set number of lines for flat panels*/
 643 static void set_number_of_lines(int lines)
 644 {
 645         int tmp = read3CE(CyberEnhance) & 0x8F;
 646         if (lines > 1024)
 647                 tmp |= 0x50;
 648         else if (lines > 768)
 649                 tmp |= 0x30;
 650         else if (lines > 600)
 651                 tmp |= 0x20;
 652         else if (lines > 480)
 653                 tmp |= 0x10;
 654         write3CE(CyberEnhance, tmp);
 655 }
 656
 657 /*
 658  * If we see that FP is active we assume we have one.
 659  * Otherwise we have a CRT display.User can override.
 660  */
 661 static unsigned int __init get_displaytype(void)
 662 {
 663         if (fp)
 664                 return DISPLAY_FP;
 665         if (crt || !chipcyber)
 666                 return DISPLAY_CRT;
 667         return (read3CE(FPConfig) & 0x10)?DISPLAY_FP:DISPLAY_CRT;
 668 }
 669
 670 /* Try detecting the video memory size */
 671 static unsigned int __init get_memsize(void)
 672 {
 673         unsigned char tmp, tmp2;
 674         unsigned int k;
 675
 676         /* If memory size provided by user */
 677         if (memsize)
 678                 k = memsize * Kb;
 679         else
 680         switch (chip_id) {
 681                 case CYBER9525DVD:    k = 2560 * Kb; break;
 682                 default:
 683                         tmp = read3X4(SPR) & 0x0F;
 684                         switch (tmp) {
 685
 686                                 case 0x01: k = 512;     break;
 687                                 case 0x02: k = 6 * Mb;  break; /* XP */
 688                                 case 0x03: k = 1 * Mb;  break;
 689                                 case 0x04: k = 8 * Mb;  break;
 690                                 case 0x06: k = 10 * Mb; break; /* XP */
 691                                 case 0x07: k = 2 * Mb;  break;
 692                                 case 0x08: k = 12 * Mb; break; /* XP */
 693                                 case 0x0A: k = 14 * Mb; break; /* XP */
 694                                 case 0x0C: k = 16 * Mb; break; /* XP */
 695                                 case 0x0E:                     /* XP */
 696
 697                                         tmp2 = read3C4(0xC1);
 698                                         switch (tmp2) {
 699                                                 case 0x00: k = 20 * Mb; break;
 700                                                 case 0x01: k = 24 * Mb; break;
 701                                                 case 0x10: k = 28 * Mb; break;
 702                                                 case 0x11: k = 32 * Mb; break;
 703                                                 default:   k = 1 * Mb;  break;
 704                                         }
 705                                 break;
 706
 707                                 case 0x0F: k = 4 * Mb; break;
 708                                 default:   k = 1 * Mb;
 709                         }
 710         }
 711
 712         k -= memdiff * Kb;
 713         output("framebuffer size = %d Kb\n", k/Kb);
 714         return k;
 715 }
 716
 717 /* See if we can handle the video mode described in var */
 718 static int tridentfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 719 {
 720         int bpp = var->bits_per_pixel;
 721         debug("enter\n");
 722
 723         /* check color depth */
 724         if (bpp == 24 )
 725                 bpp = var->bits_per_pixel = 32;
 726         /* check whether resolution fits on panel and in memory*/
 727         if (flatpanel && nativex && var->xres > nativex)
 728                 return -EINVAL;
 729         if (var->xres * var->yres_virtual * bpp/8 > info->fix.smem_len)
 730                 return -EINVAL;
 731
 732         switch (bpp) {
 733                 case 8:
 734                         var->red.offset = 0;
 735                         var->green.offset = 0;
 736                         var->blue.offset = 0;
 737                         var->red.length = 6;
 738                         var->green.length = 6;
 739                         var->blue.length = 6;
 740                         break;
 741                 case 16:
 742                         var->red.offset = 11;
 743                         var->green.offset = 5;
 744                         var->blue.offset = 0;
 745                         var->red.length = 5;
 746                         var->green.length = 6;
 747                         var->blue.length = 5;
 748                         break;
 749                 case 32:
 750                         var->red.offset = 16;
 751                         var->green.offset = 8;
 752                         var->blue.offset = 0;
 753                         var->red.length = 8;
 754                         var->green.length = 8;
 755                         var->blue.length = 8;
 756                         break;
 757                 default:
 758                         return -EINVAL;
 759         }
 760         debug("exit\n");
 761
 762         return 0;
 763
 764 }
 765 /* Pan the display */
 766 static int tridentfb_pan_display(struct fb_var_screeninfo *var,
 767                                    struct fb_info *info)
 768 {
 769         unsigned int offset;
 770
 771         debug("enter\n");
 772         offset = (var->xoffset + (var->yoffset * var->xres))
 773                         * var->bits_per_pixel/32;
 774         info->var.xoffset = var->xoffset;
 775         info->var.yoffset = var->yoffset;
 776         set_screen_start(offset);
 777         debug("exit\n");
 778         return 0;
 779 }
 780
 781 #define shadowmode_on()  write3CE(CyberControl,read3CE(CyberControl) | 0x81)
 782 #define shadowmode_off() write3CE(CyberControl,read3CE(CyberControl) & 0x7E)
 783
 784 /* Set the hardware to the requested video mode */
 785 static int tridentfb_set_par(struct fb_info *info)
 786 {
 787         struct tridentfb_par * par = (struct tridentfb_par *)(info->par);
 788         u32     htotal,hdispend,hsyncstart,hsyncend,hblankstart,hblankend,
 789                 vtotal,vdispend,vsyncstart,vsyncend,vblankstart,vblankend;
 790         struct fb_var_screeninfo *var = &info->var;
 791         int bpp = var->bits_per_pixel;
 792         unsigned char tmp;
 793         debug("enter\n");
 794         htotal = (var->xres + var->left_margin + var->right_margin + var->hsync_len)/8 - 10;
 795         hdispend = var->xres/8 - 1;
 796         hsyncstart = (var->xres + var->right_margin)/8;
 797         hsyncend = var->hsync_len/8;
 798         hblankstart = hdispend + 1;
 799         hblankend = htotal + 5;
 800
 801         vtotal = var->yres + var->upper_margin + var->lower_margin + var->vsync_len - 2;
 802         vdispend = var->yres - 1;
 803         vsyncstart = var->yres + var->lower_margin;
 804         vsyncend = var->vsync_len;
 805         vblankstart = var->yres;
 806         vblankend = vtotal + 2;
 807
 808         enable_mmio();
 809         crtc_unlock();
 810         write3CE(CyberControl,8);
 811
 812         if (flatpanel && var->xres < nativex) {
 813                 /*
 814                  * on flat panels with native size larger
 815                  * than requested resolution decide whether
 816                  * we stretch or center
 817                  */
 818                 t_outb(0xEB,0x3C2);
 819
 820                 shadowmode_on();
 821
 822                 if (center)
 823                         screen_center();
 824                 else if (stretch)
 825                         screen_stretch();
 826
 827         } else {
 828                 t_outb(0x2B,0x3C2);
 829                 write3CE(CyberControl,8);
 830         }
 831
 832         /* vertical timing values */
 833         write3X4(CRTVTotal, vtotal & 0xFF);
 834         write3X4(CRTVDispEnd, vdispend & 0xFF);
 835         write3X4(CRTVSyncStart, vsyncstart & 0xFF);
 836         write3X4(CRTVSyncEnd, (vsyncend & 0x0F));
 837         write3X4(CRTVBlankStart, vblankstart & 0xFF);
 838         write3X4(CRTVBlankEnd, 0/*p->vblankend & 0xFF*/);
 839
 840         /* horizontal timing values */
 841         write3X4(CRTHTotal, htotal & 0xFF);
 842         write3X4(CRTHDispEnd, hdispend & 0xFF);
 843         write3X4(CRTHSyncStart, hsyncstart & 0xFF);
 844         write3X4(CRTHSyncEnd, (hsyncend & 0x1F) | ((hblankend & 0x20)<<2));
 845         write3X4(CRTHBlankStart, hblankstart & 0xFF);
 846         write3X4(CRTHBlankEnd, 0/*(p->hblankend & 0x1F)*/);
 847
 848         /* higher bits of vertical timing values */
 849         tmp = 0x10;
 850         if (vtotal & 0x100) tmp |= 0x01;
 851         if (vdispend & 0x100) tmp |= 0x02;
 852         if (vsyncstart & 0x100) tmp |= 0x04;
 853         if (vblankstart & 0x100) tmp |= 0x08;
 854
 855         if (vtotal & 0x200) tmp |= 0x20;
 856         if (vdispend & 0x200) tmp |= 0x40;
 857         if (vsyncstart & 0x200) tmp |= 0x80;
 858         write3X4(CRTOverflow, tmp);
 859
 860         tmp = read3X4(CRTHiOrd) | 0x08; //line compare bit 10
 861         if (vtotal & 0x400) tmp |= 0x80;
 862         if (vblankstart & 0x400) tmp |= 0x40;
 863         if (vsyncstart & 0x400) tmp |= 0x20;
 864         if (vdispend & 0x400) tmp |= 0x10;
 865         write3X4(CRTHiOrd, tmp);
 866
 867         tmp = 0;
 868         if (htotal & 0x800) tmp |= 0x800 >> 11;
 869         if (hblankstart & 0x800) tmp |= 0x800 >> 7;
 870         write3X4(HorizOverflow, tmp);
 871
 872         tmp = 0x40;
 873         if (vblankstart & 0x200) tmp |= 0x20;
 874 //FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80;  //double scan for 200 line modes
 875         write3X4(CRTMaxScanLine, tmp);
 876
 877         write3X4(CRTLineCompare,0xFF);
 878         write3X4(CRTPRowScan,0);
 879         write3X4(CRTModeControl,0xC3);
 880
 881         write3X4(LinearAddReg,0x20);    //enable linear addressing
 882
 883         tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84:0x80;
 884         write3X4(CRTCModuleTest,tmp);   //enable access extended memory
 885
 886         write3X4(GraphEngReg, 0x80);    //enable GE for text acceleration
 887
 888 #ifdef CONFIG_FB_TRIDENT_ACCEL
 889         acc->init_accel(info->var.xres,bpp);
 890 #endif
 891
 892         switch (bpp) {
 893                 case 8:  tmp = 0x00; break;
 894                 case 16: tmp = 0x05; break;
 895                 case 24: tmp = 0x29; break;
 896                 case 32: tmp = 0x09;
 897         }
 898
 899         write3X4(PixelBusReg, tmp);
 900
 901         tmp = 0x10;
 902         if (chipcyber)
 903             tmp |= 0x20;
 904         write3X4(DRAMControl, tmp);     //both IO,linear enable
 905
 906         write3X4(InterfaceSel, read3X4(InterfaceSel) | 0x40);
 907         write3X4(Performance,0x92);
 908         write3X4(PCIReg,0x07);          //MMIO & PCI read and write burst enable
 909
 910         /* convert from picoseconds to MHz */
 911         par->vclk = 1000000/info->var.pixclock;
 912         if (bpp == 32)
 913                 par->vclk *=2;
 914         set_vclk(par->vclk);
 915
 916         write3C4(0,3);
 917         write3C4(1,1);          //set char clock 8 dots wide
 918         write3C4(2,0x0F);       //enable 4 maps because needed in chain4 mode
 919         write3C4(3,0);
 920         write3C4(4,0x0E);       //memory mode enable bitmaps ??
 921
 922         write3CE(MiscExtFunc,(bpp==32)?0x1A:0x12);      //divide clock by 2 if 32bpp
 923                                                         //chain4 mode display and CPU path
 924         write3CE(0x5,0x40);     //no CGA compat,allow 256 col
 925         write3CE(0x6,0x05);     //graphics mode
 926         write3CE(0x7,0x0F);     //planes?
 927
 928         if (chip_id == CYBERBLADEXPAi1) {
 929                 /* This fixes snow-effect in 32 bpp */
 930                 write3X4(CRTHSyncStart,0x84);
 931         }
 932
 933         writeAttr(0x10,0x41);   //graphics mode and support 256 color modes
 934         writeAttr(0x12,0x0F);   //planes
 935         writeAttr(0x13,0);      //horizontal pel panning
 936
 937         //colors
 938         for(tmp = 0;tmp < 0x10;tmp++)
 939                 writeAttr(tmp,tmp);
 940         readb(par->io_virt + CRT + 0x0A);       //flip-flop to index
 941         t_outb(0x20, 0x3C0);                    //enable attr
 942
 943         switch (bpp) {
 944                 case 8: tmp = 0;break;          //256 colors
 945                 case 15: tmp = 0x10;break;
 946                 case 16: tmp = 0x30;break;      //hicolor
 947                 case 24:                        //truecolor
 948                 case 32: tmp = 0xD0;break;
 949         }
 950
 951         t_inb(0x3C8);
 952         t_inb(0x3C6);
 953         t_inb(0x3C6);
 954         t_inb(0x3C6);
 955         t_inb(0x3C6);
 956         t_outb(tmp,0x3C6);
 957         t_inb(0x3C8);
 958
 959         if (flatpanel)
 960                 set_number_of_lines(info->var.yres);
 961         set_lwidth(info->var.xres * bpp/(4*16));
 962         info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
 963         info->fix.line_length = info->var.xres * (bpp >> 3);
 964         info->cmap.len = (bpp == 8) ? 256: 16;
 965         debug("exit\n");
 966         return 0;
 967 }
 968
 969 /* Set one color register */
 970 static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
 971                                  unsigned blue, unsigned transp,
 972                                  struct fb_info *info)
 973 {
 974         int bpp = info->var.bits_per_pixel;
 975
 976         if (regno >= info->cmap.len)
 977                 return 1;
 978
 979
 980         if (bpp==8) {
 981                 t_outb(0xFF,0x3C6);
 982                 t_outb(regno,0x3C8);
 983
 984                 t_outb(red>>10,0x3C9);
 985                 t_outb(green>>10,0x3C9);
 986                 t_outb(blue>>10,0x3C9);
 987
 988         } else if (bpp == 16) { /* RGB 565 */
 989                 u32 col;
 990
 991                 col = (red & 0xF800) | ((green & 0xFC00) >> 5) |
 992                         ((blue & 0xF800) >> 11);
 993                 col |= col << 16;
 994                 ((u32 *)(info->pseudo_palette))[regno] = col;
 995         } else if (bpp == 32)           /* ARGB 8888 */
 996                 ((u32*)info->pseudo_palette)[regno] =
 997                         ((transp & 0xFF00) <<16)        |
 998                         ((red & 0xFF00) << 8)           |
 999                         ((green & 0xFF00))              |
1000                         ((blue & 0xFF00)>>8);
1001
1002 //      debug("exit\n");
1003         return 0;
1004 }
1005
1006 /* Try blanking the screen.For flat panels it does nothing */
1007 static int tridentfb_blank(int blank_mode, struct fb_info *info)
1008 {
1009         unsigned char PMCont,DPMSCont;
1010
1011         debug("enter\n");
1012         if (flatpanel)
1013                 return 0;
1014         t_outb(0x04,0x83C8); /* Read DPMS Control */
1015         PMCont = t_inb(0x83C6) & 0xFC;
1016         DPMSCont = read3CE(PowerStatus) & 0xFC;
1017         switch (blank_mode)
1018         {
1019         case FB_BLANK_UNBLANK:
1020                 /* Screen: On, HSync: On, VSync: On */
1021         case FB_BLANK_NORMAL:
1022                 /* Screen: Off, HSync: On, VSync: On */
1023                 PMCont |= 0x03;
1024                 DPMSCont |= 0x00;
1025                 break;
1026         case FB_BLANK_HSYNC_SUSPEND:
1027                 /* Screen: Off, HSync: Off, VSync: On */
1028                 PMCont |= 0x02;
1029                 DPMSCont |= 0x01;
1030                 break;
1031         case FB_BLANK_VSYNC_SUSPEND:
1032                 /* Screen: Off, HSync: On, VSync: Off */
1033                 PMCont |= 0x02;
1034                 DPMSCont |= 0x02;
1035                 break;
1036         case FB_BLANK_POWERDOWN:
1037                 /* Screen: Off, HSync: Off, VSync: Off */
1038                 PMCont |= 0x00;
1039                 DPMSCont |= 0x03;
1040                 break;
1041         }
1042
1043         write3CE(PowerStatus,DPMSCont);
1044         t_outb(4,0x83C8);
1045         t_outb(PMCont,0x83C6);
1046
1047         debug("exit\n");
1048
1049         /* let fbcon do a softblank for us */
1050         return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
1051 }
1052
1053 static int __devinit trident_pci_probe(struct pci_dev * dev, const struct pci_device_id * id)
1054 {
1055         int err;
1056         unsigned char revision;
1057
1058         err = pci_enable_device(dev);
1059         if (err)
1060                 return err;
1061
1062         chip_id = id->device;
1063
1064         if(chip_id == CYBERBLADEi1)
1065                 output("*** Please do use cyblafb, Cyberblade/i1 support "
1066                        "will soon be removed from tridentfb!\n");
1067
1068
1069         /* If PCI id is 0x9660 then further detect chip type */
1070
1071         if (chip_id == TGUI9660) {
1072                 outb(RevisionID,0x3C4);
1073                 revision = inb(0x3C5);
1074
1075                 switch (revision) {
1076                         case 0x22:
1077                         case 0x23: chip_id = CYBER9397;break;
1078                         case 0x2A: chip_id = CYBER9397DVD;break;
1079                         case 0x30:
1080                         case 0x33:
1081                         case 0x34:
1082                         case 0x35:
1083                         case 0x38:
1084                         case 0x3A:
1085                         case 0xB3: chip_id = CYBER9385;break;
1086                         case 0x40 ... 0x43: chip_id = CYBER9382;break;
1087                         case 0x4A: chip_id = CYBER9388;break;
1088                         default:break;
1089                 }
1090         }
1091
1092         chip3D = is3Dchip(chip_id);
1093         chipcyber = iscyber(chip_id);
1094
1095         if (is_xp(chip_id)) {
1096                 acc = &accel_xp;
1097         } else
1098         if (is_blade(chip_id)) {
1099                 acc = &accel_blade;
1100         } else {
1101                 acc = &accel_image;
1102         }
1103
1104         /* acceleration is on by default for 3D chips */
1105         defaultaccel = chip3D && !noaccel;
1106
1107         fb_info.par = &default_par;
1108
1109         /* setup MMIO region */
1110         tridentfb_fix.mmio_start = pci_resource_start(dev,1);
1111         tridentfb_fix.mmio_len = chip3D ? 0x20000:0x10000;
1112
1113         if (!request_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len, "tridentfb")) {
1114                 debug("request_region failed!\n");
1115                 return -1;
1116         }
1117
1118         default_par.io_virt = ioremap_nocache(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1119
1120         if (!default_par.io_virt) {
1121                 release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1122                 debug("ioremap failed\n");
1123                 return -1;
1124         }
1125
1126         enable_mmio();
1127
1128         /* setup framebuffer memory */
1129         tridentfb_fix.smem_start = pci_resource_start(dev,0);
1130         tridentfb_fix.smem_len = get_memsize();
1131
1132         if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) {
1133                 debug("request_mem_region failed!\n");
1134                 return -1;
1135         }
1136
1137         fb_info.screen_base = ioremap_nocache(tridentfb_fix.smem_start,
1138                                         tridentfb_fix.smem_len);
1139
1140         if (!fb_info.screen_base) {
1141                 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1142                 debug("ioremap failed\n");
1143                 return -1;
1144         }
1145
1146         output("%s board found\n", pci_name(dev));
1147 #if 0
1148         output("Trident board found : mem = %X,io = %X, mem_v = %X, io_v = %X\n",
1149                 tridentfb_fix.smem_start, tridentfb_fix.mmio_start, fb_info.screen_base, default_par.io_virt);
1150 #endif
1151         displaytype = get_displaytype();
1152
1153         if(flatpanel)
1154                 nativex = get_nativex();
1155
1156         fb_info.fix = tridentfb_fix;
1157         fb_info.fbops = &tridentfb_ops;
1158
1159
1160         fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1161 #ifdef CONFIG_FB_TRIDENT_ACCEL
1162         fb_info.flags |= FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
1163 #endif
1164         fb_info.pseudo_palette = pseudo_pal;
1165
1166         if (!fb_find_mode(&default_var,&fb_info,mode,NULL,0,NULL,bpp))
1167                 return -EINVAL;
1168         fb_alloc_cmap(&fb_info.cmap,256,0);
1169         if (defaultaccel && acc)
1170                 default_var.accel_flags |= FB_ACCELF_TEXT;
1171         else
1172                 default_var.accel_flags &= ~FB_ACCELF_TEXT;
1173         default_var.activate |= FB_ACTIVATE_NOW;
1174         fb_info.var = default_var;
1175         fb_info.device = &dev->dev;
1176         if (register_framebuffer(&fb_info) < 0) {
1177                 printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n");
1178                 return -EINVAL;
1179         }
1180         output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
1181            fb_info.node, fb_info.fix.id,default_var.xres,
1182            default_var.yres,default_var.bits_per_pixel);
1183         return 0;
1184 }
1185
1186 static void __devexit trident_pci_remove(struct pci_dev * dev)
1187 {
1188         struct tridentfb_par *par = (struct tridentfb_par*)fb_info.par;
1189         unregister_framebuffer(&fb_info);
1190         iounmap(par->io_virt);
1191         iounmap(fb_info.screen_base);
1192         release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1193         release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1194 }
1195
1196 /* List of boards that we are trying to support */
1197 static struct pci_device_id trident_devices[] = {
1198         {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1199         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1200         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1201         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1202         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1203         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1204         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1205         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1206         {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1207         {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1208         {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1209         {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1210         {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1211         {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1212         {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1213         {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1214         {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1215         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1216         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1217         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1218         {0,}
1219 };
1220
1221 MODULE_DEVICE_TABLE(pci,trident_devices);
1222
1223 static struct pci_driver tridentfb_pci_driver = {
1224         .name           = "tridentfb",
1225         .id_table       = trident_devices,
1226         .probe          = trident_pci_probe,
1227         .remove         = __devexit_p(trident_pci_remove)
1228 };
1229
1230 /*
1231  * Parse user specified options (`video=trident:')
1232  * example:
1233  *      video=trident:800x600,bpp=16,noaccel
1234  */
1235 #ifndef MODULE
1236 static int tridentfb_setup(char *options)
1237 {
1238         char * opt;
1239         if (!options || !*options)
1240                 return 0;
1241         while((opt = strsep(&options,",")) != NULL ) {
1242                 if (!*opt) continue;
1243                 if (!strncmp(opt,"noaccel",7))
1244                         noaccel = 1;
1245                 else if (!strncmp(opt,"fp",2))
1246                         displaytype = DISPLAY_FP;
1247                 else if (!strncmp(opt,"crt",3))
1248                         displaytype = DISPLAY_CRT;
1249                 else if (!strncmp(opt,"bpp=",4))
1250                         bpp = simple_strtoul(opt+4,NULL,0);
1251                 else if (!strncmp(opt,"center",6))
1252                         center = 1;
1253                 else if (!strncmp(opt,"stretch",7))
1254                         stretch = 1;
1255                 else if (!strncmp(opt,"memsize=",8))
1256                         memsize = simple_strtoul(opt+8,NULL,0);
1257                 else if (!strncmp(opt,"memdiff=",8))
1258                         memdiff = simple_strtoul(opt+8,NULL,0);
1259                 else if (!strncmp(opt,"nativex=",8))
1260                         nativex = simple_strtoul(opt+8,NULL,0);
1261                 else
1262                         mode = opt;
1263         }
1264         return 0;
1265 }
1266 #endif
1267
1268 static int __init tridentfb_init(void)
1269 {
1270 #ifndef MODULE
1271         char *option = NULL;
1272
1273         if (fb_get_options("tridentfb", &option))
1274                 return -ENODEV;
1275         tridentfb_setup(option);
1276 #endif
1277         output("Trident framebuffer %s initializing\n", VERSION);
1278         return pci_register_driver(&tridentfb_pci_driver);
1279 }
1280
1281 static void __exit tridentfb_exit(void)
1282 {
1283         pci_unregister_driver(&tridentfb_pci_driver);
1284 }
1285
1286 static struct fb_ops tridentfb_ops = {
1287         .owner  = THIS_MODULE,
1288         .fb_setcolreg = tridentfb_setcolreg,
1289         .fb_pan_display = tridentfb_pan_display,
1290         .fb_blank = tridentfb_blank,
1291         .fb_check_var = tridentfb_check_var,
1292         .fb_set_par = tridentfb_set_par,
1293         .fb_fillrect = tridentfb_fillrect,
1294         .fb_copyarea= tridentfb_copyarea,
1295         .fb_imageblit = cfb_imageblit,
1296 };
1297
1298 module_init(tridentfb_init);
1299 module_exit(tridentfb_exit);
1300
1301 MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
1302 MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
1303 MODULE_LICENSE("GPL");
1304