linux/drivers/video/tridentfb.c
<<
>>
Prefs
   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         "0.7.8-NEWAPI"
  28
  29struct tridentfb_par {
  30        int vclk;               /* in MHz */
  31        void __iomem *io_virt;  /* iospace virtual memory address */
  32};
  33
  34static unsigned char eng_oper;  /* engine operation... */
  35static struct fb_ops tridentfb_ops;
  36
  37static struct tridentfb_par default_par;
  38
  39/* FIXME:kmalloc these 3 instead */
  40static struct fb_info fb_info;
  41static u32 pseudo_pal[16];
  42
  43static struct fb_var_screeninfo default_var;
  44
  45static struct fb_fix_screeninfo tridentfb_fix = {
  46        .id = "Trident",
  47        .type = FB_TYPE_PACKED_PIXELS,
  48        .ypanstep = 1,
  49        .visual = FB_VISUAL_PSEUDOCOLOR,
  50        .accel = FB_ACCEL_NONE,
  51};
  52
  53static int chip_id;
  54
  55static int defaultaccel;
  56static int displaytype;
  57
  58/* defaults which are normally overriden by user values */
  59
  60/* video mode */
  61static char *mode = "640x480";
  62static int bpp = 8;
  63
  64static int noaccel;
  65
  66static int center;
  67static int stretch;
  68
  69static int fp;
  70static int crt;
  71
  72static int memsize;
  73static int memdiff;
  74static int nativex;
  75
  76module_param(mode, charp, 0);
  77module_param(bpp, int, 0);
  78module_param(center, int, 0);
  79module_param(stretch, int, 0);
  80module_param(noaccel, int, 0);
  81module_param(memsize, int, 0);
  82module_param(memdiff, int, 0);
  83module_param(nativex, int, 0);
  84module_param(fp, int, 0);
  85module_param(crt, int, 0);
  86
  87static int chip3D;
  88static int chipcyber;
  89
  90static int is3Dchip(int id)
  91{
  92        return ((id == BLADE3D) || (id == CYBERBLADEE4) ||
  93                (id == CYBERBLADEi7) || (id == CYBERBLADEi7D) ||
  94                (id == CYBER9397) || (id == CYBER9397DVD) ||
  95                (id == CYBER9520) || (id == CYBER9525DVD) ||
  96                (id == IMAGE975) || (id == IMAGE985) ||
  97                (id == CYBERBLADEi1) || (id == CYBERBLADEi1D) ||
  98                (id == CYBERBLADEAi1) || (id == CYBERBLADEAi1D) ||
  99                (id == CYBERBLADEXPm8) || (id == CYBERBLADEXPm16) ||
 100                (id == CYBERBLADEXPAi1));
 101}
 102
 103static int iscyber(int id)
 104{
 105        switch (id) {
 106        case CYBER9388:
 107        case CYBER9382:
 108        case CYBER9385:
 109        case CYBER9397:
 110        case CYBER9397DVD:
 111        case CYBER9520:
 112        case CYBER9525DVD:
 113        case CYBERBLADEE4:
 114        case CYBERBLADEi7D:
 115        case CYBERBLADEi1:
 116        case CYBERBLADEi1D:
 117        case CYBERBLADEAi1:
 118        case CYBERBLADEAi1D:
 119        case CYBERBLADEXPAi1:
 120                return 1;
 121
 122        case CYBER9320:
 123        case TGUI9660:
 124        case IMAGE975:
 125        case IMAGE985:
 126        case BLADE3D:
 127        case CYBERBLADEi7:      /* VIA MPV4 integrated version */
 128
 129        default:
 130                /* case CYBERBLDAEXPm8:  Strange */
 131                /* case CYBERBLDAEXPm16: Strange */
 132                return 0;
 133        }
 134}
 135
 136#define CRT 0x3D0               /* CRTC registers offset for color display */
 137
 138#ifndef TRIDENT_MMIO
 139        #define TRIDENT_MMIO 1
 140#endif
 141
 142#if TRIDENT_MMIO
 143        #define t_outb(val, reg)        writeb(val,((struct tridentfb_par *)(fb_info.par))->io_virt + reg)
 144        #define t_inb(reg)      readb(((struct tridentfb_par*)(fb_info.par))->io_virt + reg)
 145#else
 146        #define t_outb(val, reg) outb(val, reg)
 147        #define t_inb(reg) inb(reg)
 148#endif
 149
 150
 151static struct accel_switch {
 152        void (*init_accel) (int, int);
 153        void (*wait_engine) (void);
 154        void (*fill_rect) (u32, u32, u32, u32, u32, u32);
 155        void (*copy_rect) (u32, u32, u32, u32, u32, u32);
 156} *acc;
 157
 158#define writemmr(r, v)  writel(v, ((struct tridentfb_par *)fb_info.par)->io_virt + r)
 159#define readmmr(r)      readl(((struct tridentfb_par *)fb_info.par)->io_virt + r)
 160
 161/*
 162 * Blade specific acceleration.
 163 */
 164
 165#define point(x, y) ((y) << 16 | (x))
 166#define STA     0x2120
 167#define CMD     0x2144
 168#define ROP     0x2148
 169#define CLR     0x2160
 170#define SR1     0x2100
 171#define SR2     0x2104
 172#define DR1     0x2108
 173#define DR2     0x210C
 174
 175#define ROP_S   0xCC
 176
 177static void blade_init_accel(int pitch, int bpp)
 178{
 179        int v1 = (pitch >> 3) << 20;
 180        int tmp = 0, v2;
 181        switch (bpp) {
 182        case 8:
 183                tmp = 0;
 184                break;
 185        case 15:
 186                tmp = 5;
 187                break;
 188        case 16:
 189                tmp = 1;
 190                break;
 191        case 24:
 192        case 32:
 193                tmp = 2;
 194                break;
 195        }
 196        v2 = v1 | (tmp << 29);
 197        writemmr(0x21C0, v2);
 198        writemmr(0x21C4, v2);
 199        writemmr(0x21B8, v2);
 200        writemmr(0x21BC, v2);
 201        writemmr(0x21D0, v1);
 202        writemmr(0x21D4, v1);
 203        writemmr(0x21C8, v1);
 204        writemmr(0x21CC, v1);
 205        writemmr(0x216C, 0);
 206}
 207
 208static void blade_wait_engine(void)
 209{
 210        while (readmmr(STA) & 0xFA800000) ;
 211}
 212
 213static void blade_fill_rect(u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
 214{
 215        writemmr(CLR, c);
 216        writemmr(ROP, rop ? 0x66 : ROP_S);
 217        writemmr(CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
 218
 219        writemmr(DR1, point(x, y));
 220        writemmr(DR2, point(x + w - 1, y + h - 1));
 221}
 222
 223static void blade_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
 224{
 225        u32 s1, s2, d1, d2;
 226        int direction = 2;
 227        s1 = point(x1, y1);
 228        s2 = point(x1 + w - 1, y1 + h - 1);
 229        d1 = point(x2, y2);
 230        d2 = point(x2 + w - 1, y2 + h - 1);
 231
 232        if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
 233                direction = 0;
 234
 235        writemmr(ROP, ROP_S);
 236        writemmr(CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction);
 237
 238        writemmr(SR1, direction ? s2 : s1);
 239        writemmr(SR2, direction ? s1 : s2);
 240        writemmr(DR1, direction ? d2 : d1);
 241        writemmr(DR2, direction ? d1 : d2);
 242}
 243
 244static struct accel_switch accel_blade = {
 245        blade_init_accel,
 246        blade_wait_engine,
 247        blade_fill_rect,
 248        blade_copy_rect,
 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
 258static 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:
 265                x = 0;
 266                break;
 267        case 16:
 268                x = 1;
 269                break;
 270        case 24:
 271                x = 3;
 272                break;
 273        case 32:
 274                x = 2;
 275                break;
 276        }
 277
 278        switch (pitch << (bpp >> 3)) {
 279        case 8192:
 280        case 512:
 281                x |= 0x00;
 282                break;
 283        case 1024:
 284                x |= 0x04;
 285                break;
 286        case 2048:
 287                x |= 0x08;
 288                break;
 289        case 4096:
 290                x |= 0x0C;
 291                break;
 292        }
 293
 294        t_outb(x, 0x2125);
 295
 296        eng_oper = x | 0x40;
 297
 298        switch (bpp) {
 299        case 8:
 300                tmp = 18;
 301                break;
 302        case 15:
 303        case 16:
 304                tmp = 19;
 305                break;
 306        case 24:
 307        case 32:
 308                tmp = 20;
 309                break;
 310        }
 311
 312        v1 = pitch << tmp;
 313
 314        writemmr(0x2154, v1);
 315        writemmr(0x2150, v1);
 316        t_outb(3, 0x2126);
 317}
 318
 319static void xp_wait_engine(void)
 320{
 321        int busy;
 322        int count, timeout;
 323
 324        count = 0;
 325        timeout = 0;
 326        for (;;) {
 327                busy = t_inb(STA) & 0x80;
 328                if (busy != 0x80)
 329                        return;
 330                count++;
 331                if (count == 10000000) {
 332                        /* Timeout */
 333                        count = 9990000;
 334                        timeout++;
 335                        if (timeout == 8) {
 336                                /* Reset engine */
 337                                t_outb(0x00, 0x2120);
 338                                return;
 339                        }
 340                }
 341        }
 342}
 343
 344static void xp_fill_rect(u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
 345{
 346        writemmr(0x2127, ROP_P);
 347        writemmr(0x2158, c);
 348        writemmr(0x2128, 0x4000);
 349        writemmr(0x2140, masked_point(h, w));
 350        writemmr(0x2138, masked_point(y, x));
 351        t_outb(0x01, 0x2124);
 352        t_outb(eng_oper, 0x2125);
 353}
 354
 355static void xp_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
 356{
 357        int direction;
 358        u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
 359
 360        direction = 0x0004;
 361
 362        if ((x1 < x2) && (y1 == y2)) {
 363                direction |= 0x0200;
 364                x1_tmp = x1 + w - 1;
 365                x2_tmp = x2 + w - 1;
 366        } else {
 367                x1_tmp = x1;
 368                x2_tmp = x2;
 369        }
 370
 371        if (y1 < y2) {
 372                direction |= 0x0100;
 373                y1_tmp = y1 + h - 1;
 374                y2_tmp = y2 + h - 1;
 375        } else {
 376                y1_tmp = y1;
 377                y2_tmp = y2;
 378        }
 379
 380        writemmr(0x2128, direction);
 381        t_outb(ROP_S, 0x2127);
 382        writemmr(0x213C, masked_point(y1_tmp, x1_tmp));
 383        writemmr(0x2138, masked_point(y2_tmp, x2_tmp));
 384        writemmr(0x2140, masked_point(h, w));
 385        t_outb(0x01, 0x2124);
 386}
 387
 388static struct accel_switch accel_xp = {
 389        xp_init_accel,
 390        xp_wait_engine,
 391        xp_fill_rect,
 392        xp_copy_rect,
 393};
 394
 395/*
 396 * Image specific acceleration functions
 397 */
 398static void image_init_accel(int pitch, int bpp)
 399{
 400        int tmp = 0;
 401        switch (bpp) {
 402        case 8:
 403                tmp = 0;
 404                break;
 405        case 15:
 406                tmp = 5;
 407                break;
 408        case 16:
 409                tmp = 1;
 410                break;
 411        case 24:
 412        case 32:
 413                tmp = 2;
 414                break;
 415        }
 416        writemmr(0x2120, 0xF0000000);
 417        writemmr(0x2120, 0x40000000 | tmp);
 418        writemmr(0x2120, 0x80000000);
 419        writemmr(0x2144, 0x00000000);
 420        writemmr(0x2148, 0x00000000);
 421        writemmr(0x2150, 0x00000000);
 422        writemmr(0x2154, 0x00000000);
 423        writemmr(0x2120, 0x60000000 | (pitch << 16) | pitch);
 424        writemmr(0x216C, 0x00000000);
 425        writemmr(0x2170, 0x00000000);
 426        writemmr(0x217C, 0x00000000);
 427        writemmr(0x2120, 0x10000000);
 428        writemmr(0x2130, (2047 << 16) | 2047);
 429}
 430
 431static void image_wait_engine(void)
 432{
 433        while (readmmr(0x2164) & 0xF0000000) ;
 434}
 435
 436static void image_fill_rect(u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
 437{
 438        writemmr(0x2120, 0x80000000);
 439        writemmr(0x2120, 0x90000000 | ROP_S);
 440
 441        writemmr(0x2144, c);
 442
 443        writemmr(DR1, point(x, y));
 444        writemmr(DR2, point(x + w - 1, y + h - 1));
 445
 446        writemmr(0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9);
 447}
 448
 449static void image_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
 450{
 451        u32 s1, s2, d1, d2;
 452        int direction = 2;
 453        s1 = point(x1, y1);
 454        s2 = point(x1 + w - 1, y1 + h - 1);
 455        d1 = point(x2, y2);
 456        d2 = point(x2 + w - 1, y2 + h - 1);
 457
 458        if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
 459                direction = 0;
 460
 461        writemmr(0x2120, 0x80000000);
 462        writemmr(0x2120, 0x90000000 | ROP_S);
 463
 464        writemmr(SR1, direction ? s2 : s1);
 465        writemmr(SR2, direction ? s1 : s2);
 466        writemmr(DR1, direction ? d2 : d1);
 467        writemmr(DR2, direction ? d1 : d2);
 468        writemmr(0x2124, 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction);
 469}
 470
 471static struct accel_switch accel_image = {
 472        image_init_accel,
 473        image_wait_engine,
 474        image_fill_rect,
 475        image_copy_rect,
 476};
 477
 478/*
 479 * Accel functions called by the upper layers
 480 */
 481#ifdef CONFIG_FB_TRIDENT_ACCEL
 482static void tridentfb_fillrect(struct fb_info *info,
 483                               const struct fb_fillrect *fr)
 484{
 485        int bpp = info->var.bits_per_pixel;
 486        int col = 0;
 487
 488        switch (bpp) {
 489        default:
 490        case 8:
 491                col |= fr->color;
 492                col |= col << 8;
 493                col |= col << 16;
 494                break;
 495        case 16:
 496                col = ((u32 *)(info->pseudo_palette))[fr->color];
 497                break;
 498        case 32:
 499                col = ((u32 *)(info->pseudo_palette))[fr->color];
 500                break;
 501        }
 502
 503        acc->fill_rect(fr->dx, fr->dy, fr->width, fr->height, col, fr->rop);
 504        acc->wait_engine();
 505}
 506static void tridentfb_copyarea(struct fb_info *info,
 507                               const struct fb_copyarea *ca)
 508{
 509        acc->copy_rect(ca->sx, ca->sy, ca->dx, ca->dy, ca->width, ca->height);
 510        acc->wait_engine();
 511}
 512#else /* !CONFIG_FB_TRIDENT_ACCEL */
 513#define tridentfb_fillrect cfb_fillrect
 514#define tridentfb_copyarea cfb_copyarea
 515#endif /* CONFIG_FB_TRIDENT_ACCEL */
 516
 517
 518/*
 519 * Hardware access functions
 520 */
 521
 522static inline unsigned char read3X4(int reg)
 523{
 524        struct tridentfb_par *par = (struct tridentfb_par *)fb_info.par;
 525        writeb(reg, par->io_virt + CRT + 4);
 526        return readb(par->io_virt + CRT + 5);
 527}
 528
 529static inline void write3X4(int reg, unsigned char val)
 530{
 531        struct tridentfb_par *par = (struct tridentfb_par *)fb_info.par;
 532        writeb(reg, par->io_virt + CRT + 4);
 533        writeb(val, par->io_virt + CRT + 5);
 534}
 535
 536static inline unsigned char read3C4(int reg)
 537{
 538        t_outb(reg, 0x3C4);
 539        return t_inb(0x3C5);
 540}
 541
 542static inline void write3C4(int reg, unsigned char val)
 543{
 544        t_outb(reg, 0x3C4);
 545        t_outb(val, 0x3C5);
 546}
 547
 548static inline unsigned char read3CE(int reg)
 549{
 550        t_outb(reg, 0x3CE);
 551        return t_inb(0x3CF);
 552}
 553
 554static inline void writeAttr(int reg, unsigned char val)
 555{
 556        readb(((struct tridentfb_par *)fb_info.par)->io_virt + CRT + 0x0A);     /* flip-flop to index */
 557        t_outb(reg, 0x3C0);
 558        t_outb(val, 0x3C0);
 559}
 560
 561static inline void write3CE(int reg, unsigned char val)
 562{
 563        t_outb(reg, 0x3CE);
 564        t_outb(val, 0x3CF);
 565}
 566
 567static void enable_mmio(void)
 568{
 569        /* Goto New Mode */
 570        outb(0x0B, 0x3C4);
 571        inb(0x3C5);
 572
 573        /* Unprotect registers */
 574        outb(NewMode1, 0x3C4);
 575        outb(0x80, 0x3C5);
 576
 577        /* Enable MMIO */
 578        outb(PCIReg, 0x3D4);
 579        outb(inb(0x3D5) | 0x01, 0x3D5);
 580}
 581
 582static void disable_mmio(void)
 583{
 584        /* Goto New Mode */
 585        t_outb(0x0B, 0x3C4);
 586        t_inb(0x3C5);
 587
 588        /* Unprotect registers */
 589        t_outb(NewMode1, 0x3C4);
 590        t_outb(0x80, 0x3C5);
 591
 592        /* Disable MMIO */
 593        t_outb(PCIReg, 0x3D4);
 594        t_outb(t_inb(0x3D5) & ~0x01, 0x3D5);
 595}
 596
 597#define crtc_unlock()   write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F)
 598
 599/*  Return flat panel's maximum x resolution */
 600static int __devinit get_nativex(void)
 601{
 602        int x, y, tmp;
 603
 604        if (nativex)
 605                return nativex;
 606
 607        tmp = (read3CE(VertStretch) >> 4) & 3;
 608
 609        switch (tmp) {
 610        case 0:
 611                x = 1280; y = 1024;
 612                break;
 613        case 2:
 614                x = 1024; y = 768;
 615                break;
 616        case 3:
 617                x = 800; y = 600;
 618                break;
 619        case 4:
 620                x = 1400; y = 1050;
 621                break;
 622        case 1:
 623        default:
 624                x = 640;  y = 480;
 625                break;
 626        }
 627
 628        output("%dx%d flat panel found\n", x, y);
 629        return x;
 630}
 631
 632/* Set pitch */
 633static void set_lwidth(int width)
 634{
 635        write3X4(Offset, width & 0xFF);
 636        write3X4(AddColReg,
 637                 (read3X4(AddColReg) & 0xCF) | ((width & 0x300) >> 4));
 638}
 639
 640/* For resolutions smaller than FP resolution stretch */
 641static void screen_stretch(void)
 642{
 643        if (chip_id != CYBERBLADEXPAi1)
 644                write3CE(BiosReg, 0);
 645        else
 646                write3CE(BiosReg, 8);
 647        write3CE(VertStretch, (read3CE(VertStretch) & 0x7C) | 1);
 648        write3CE(HorStretch, (read3CE(HorStretch) & 0x7C) | 1);
 649}
 650
 651/* For resolutions smaller than FP resolution center */
 652static void screen_center(void)
 653{
 654        write3CE(VertStretch, (read3CE(VertStretch) & 0x7C) | 0x80);
 655        write3CE(HorStretch, (read3CE(HorStretch) & 0x7C) | 0x80);
 656}
 657
 658/* Address of first shown pixel in display memory */
 659static void set_screen_start(int base)
 660{
 661        write3X4(StartAddrLow, base & 0xFF);
 662        write3X4(StartAddrHigh, (base & 0xFF00) >> 8);
 663        write3X4(CRTCModuleTest,
 664                 (read3X4(CRTCModuleTest) & 0xDF) | ((base & 0x10000) >> 11));
 665        write3X4(CRTHiOrd,
 666                 (read3X4(CRTHiOrd) & 0xF8) | ((base & 0xE0000) >> 17));
 667}
 668
 669/* Use 20.12 fixed-point for NTSC value and frequency calculation */
 670#define calc_freq(n, m, k)  ( ((unsigned long)0xE517 * (n + 8) / ((m + 2) * (1 << k))) >> 12 )
 671
 672/* Set dotclock frequency */
 673static void set_vclk(int freq)
 674{
 675        int m, n, k;
 676        int f, fi, d, di;
 677        unsigned char lo = 0, hi = 0;
 678
 679        d = 20;
 680        for (k = 2; k >= 0; k--)
 681                for (m = 0; m < 63; m++)
 682                        for (n = 0; n < 128; n++) {
 683                                fi = calc_freq(n, m, k);
 684                                if ((di = abs(fi - freq)) < d) {
 685                                        d = di;
 686                                        f = fi;
 687                                        lo = n;
 688                                        hi = (k << 6) | m;
 689                                }
 690                        }
 691        if (chip3D) {
 692                write3C4(ClockHigh, hi);
 693                write3C4(ClockLow, lo);
 694        } else {
 695                outb(lo, 0x43C8);
 696                outb(hi, 0x43C9);
 697        }
 698        debug("VCLK = %X %X\n", hi, lo);
 699}
 700
 701/* Set number of lines for flat panels*/
 702static void set_number_of_lines(int lines)
 703{
 704        int tmp = read3CE(CyberEnhance) & 0x8F;
 705        if (lines > 1024)
 706                tmp |= 0x50;
 707        else if (lines > 768)
 708                tmp |= 0x30;
 709        else if (lines > 600)
 710                tmp |= 0x20;
 711        else if (lines > 480)
 712                tmp |= 0x10;
 713        write3CE(CyberEnhance, tmp);
 714}
 715
 716/*
 717 * If we see that FP is active we assume we have one.
 718 * Otherwise we have a CRT display.User can override.
 719 */
 720static unsigned int __devinit get_displaytype(void)
 721{
 722        if (fp)
 723                return DISPLAY_FP;
 724        if (crt || !chipcyber)
 725                return DISPLAY_CRT;
 726        return (read3CE(FPConfig) & 0x10) ? DISPLAY_FP : DISPLAY_CRT;
 727}
 728
 729/* Try detecting the video memory size */
 730static unsigned int __devinit get_memsize(void)
 731{
 732        unsigned char tmp, tmp2;
 733        unsigned int k;
 734
 735        /* If memory size provided by user */
 736        if (memsize)
 737                k = memsize * Kb;
 738        else
 739                switch (chip_id) {
 740                case CYBER9525DVD:
 741                        k = 2560 * Kb;
 742                        break;
 743                default:
 744                        tmp = read3X4(SPR) & 0x0F;
 745                        switch (tmp) {
 746
 747                        case 0x01:
 748                                k = 512 * Kb;
 749                                break;
 750                        case 0x02:
 751                                k = 6 * Mb;     /* XP */
 752                                break;
 753                        case 0x03:
 754                                k = 1 * Mb;
 755                                break;
 756                        case 0x04:
 757                                k = 8 * Mb;
 758                                break;
 759                        case 0x06:
 760                                k = 10 * Mb;    /* XP */
 761                                break;
 762                        case 0x07:
 763                                k = 2 * Mb;
 764                                break;
 765                        case 0x08:
 766                                k = 12 * Mb;    /* XP */
 767                                break;
 768                        case 0x0A:
 769                                k = 14 * Mb;    /* XP */
 770                                break;
 771                        case 0x0C:
 772                                k = 16 * Mb;    /* XP */
 773                                break;
 774                        case 0x0E:              /* XP */
 775
 776                                tmp2 = read3C4(0xC1);
 777                                switch (tmp2) {
 778                                case 0x00:
 779                                        k = 20 * Mb;
 780                                        break;
 781                                case 0x01:
 782                                        k = 24 * Mb;
 783                                        break;
 784                                case 0x10:
 785                                        k = 28 * Mb;
 786                                        break;
 787                                case 0x11:
 788                                        k = 32 * Mb;
 789                                        break;
 790                                default:
 791                                        k = 1 * Mb;
 792                                        break;
 793                                }
 794                                break;
 795
 796                        case 0x0F:
 797                                k = 4 * Mb;
 798                                break;
 799                        default:
 800                                k = 1 * Mb;
 801                                break;
 802                        }
 803                }
 804
 805        k -= memdiff * Kb;
 806        output("framebuffer size = %d Kb\n", k / Kb);
 807        return k;
 808}
 809
 810/* See if we can handle the video mode described in var */
 811static int tridentfb_check_var(struct fb_var_screeninfo *var,
 812                               struct fb_info *info)
 813{
 814        int bpp = var->bits_per_pixel;
 815        debug("enter\n");
 816
 817        /* check color depth */
 818        if (bpp == 24)
 819                bpp = var->bits_per_pixel = 32;
 820        /* check whether resolution fits on panel and in memory */
 821        if (flatpanel && nativex && var->xres > nativex)
 822                return -EINVAL;
 823        if (var->xres * var->yres_virtual * bpp / 8 > info->fix.smem_len)
 824                return -EINVAL;
 825
 826        switch (bpp) {
 827        case 8:
 828                var->red.offset = 0;
 829                var->green.offset = 0;
 830                var->blue.offset = 0;
 831                var->red.length = 6;
 832                var->green.length = 6;
 833                var->blue.length = 6;
 834                break;
 835        case 16:
 836                var->red.offset = 11;
 837                var->green.offset = 5;
 838                var->blue.offset = 0;
 839                var->red.length = 5;
 840                var->green.length = 6;
 841                var->blue.length = 5;
 842                break;
 843        case 32:
 844                var->red.offset = 16;
 845                var->green.offset = 8;
 846                var->blue.offset = 0;
 847                var->red.length = 8;
 848                var->green.length = 8;
 849                var->blue.length = 8;
 850                break;
 851        default:
 852                return -EINVAL;
 853        }
 854        debug("exit\n");
 855
 856        return 0;
 857
 858}
 859
 860/* Pan the display */
 861static int tridentfb_pan_display(struct fb_var_screeninfo *var,
 862                                 struct fb_info *info)
 863{
 864        unsigned int offset;
 865
 866        debug("enter\n");
 867        offset = (var->xoffset + (var->yoffset * var->xres))
 868                * var->bits_per_pixel / 32;
 869        info->var.xoffset = var->xoffset;
 870        info->var.yoffset = var->yoffset;
 871        set_screen_start(offset);
 872        debug("exit\n");
 873        return 0;
 874}
 875
 876#define shadowmode_on()  write3CE(CyberControl, read3CE(CyberControl) | 0x81)
 877#define shadowmode_off() write3CE(CyberControl, read3CE(CyberControl) & 0x7E)
 878
 879/* Set the hardware to the requested video mode */
 880static int tridentfb_set_par(struct fb_info *info)
 881{
 882        struct tridentfb_par *par = (struct tridentfb_par *)(info->par);
 883        u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend;
 884        u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend;
 885        struct fb_var_screeninfo *var = &info->var;
 886        int bpp = var->bits_per_pixel;
 887        unsigned char tmp;
 888        debug("enter\n");
 889        hdispend = var->xres / 8 - 1;
 890        hsyncstart = (var->xres + var->right_margin) / 8;
 891        hsyncend = var->hsync_len / 8;
 892        htotal =
 893                (var->xres + var->left_margin + var->right_margin +
 894                 var->hsync_len) / 8 - 10;
 895        hblankstart = hdispend + 1;
 896        hblankend = htotal + 5;
 897
 898        vdispend = var->yres - 1;
 899        vsyncstart = var->yres + var->lower_margin;
 900        vsyncend = var->vsync_len;
 901        vtotal = var->upper_margin + vsyncstart + vsyncend - 2;
 902        vblankstart = var->yres;
 903        vblankend = vtotal + 2;
 904
 905        enable_mmio();
 906        crtc_unlock();
 907        write3CE(CyberControl, 8);
 908
 909        if (flatpanel && var->xres < nativex) {
 910                /*
 911                 * on flat panels with native size larger
 912                 * than requested resolution decide whether
 913                 * we stretch or center
 914                 */
 915                t_outb(0xEB, 0x3C2);
 916
 917                shadowmode_on();
 918
 919                if (center)
 920                        screen_center();
 921                else if (stretch)
 922                        screen_stretch();
 923
 924        } else {
 925                t_outb(0x2B, 0x3C2);
 926                write3CE(CyberControl, 8);
 927        }
 928
 929        /* vertical timing values */
 930        write3X4(CRTVTotal, vtotal & 0xFF);
 931        write3X4(CRTVDispEnd, vdispend & 0xFF);
 932        write3X4(CRTVSyncStart, vsyncstart & 0xFF);
 933        write3X4(CRTVSyncEnd, (vsyncend & 0x0F));
 934        write3X4(CRTVBlankStart, vblankstart & 0xFF);
 935        write3X4(CRTVBlankEnd, 0 /* p->vblankend & 0xFF */ );
 936
 937        /* horizontal timing values */
 938        write3X4(CRTHTotal, htotal & 0xFF);
 939        write3X4(CRTHDispEnd, hdispend & 0xFF);
 940        write3X4(CRTHSyncStart, hsyncstart & 0xFF);
 941        write3X4(CRTHSyncEnd, (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
 942        write3X4(CRTHBlankStart, hblankstart & 0xFF);
 943        write3X4(CRTHBlankEnd, 0 /* (p->hblankend & 0x1F) */ );
 944
 945        /* higher bits of vertical timing values */
 946        tmp = 0x10;
 947        if (vtotal & 0x100) tmp |= 0x01;
 948        if (vdispend & 0x100) tmp |= 0x02;
 949        if (vsyncstart & 0x100) tmp |= 0x04;
 950        if (vblankstart & 0x100) tmp |= 0x08;
 951
 952        if (vtotal & 0x200) tmp |= 0x20;
 953        if (vdispend & 0x200) tmp |= 0x40;
 954        if (vsyncstart & 0x200) tmp |= 0x80;
 955        write3X4(CRTOverflow, tmp);
 956
 957        tmp = read3X4(CRTHiOrd) | 0x08; /* line compare bit 10 */
 958        if (vtotal & 0x400) tmp |= 0x80;
 959        if (vblankstart & 0x400) tmp |= 0x40;
 960        if (vsyncstart & 0x400) tmp |= 0x20;
 961        if (vdispend & 0x400) tmp |= 0x10;
 962        write3X4(CRTHiOrd, tmp);
 963
 964        tmp = 0;
 965        if (htotal & 0x800) tmp |= 0x800 >> 11;
 966        if (hblankstart & 0x800) tmp |= 0x800 >> 7;
 967        write3X4(HorizOverflow, tmp);
 968
 969        tmp = 0x40;
 970        if (vblankstart & 0x200) tmp |= 0x20;
 971//FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80;  /* double scan for 200 line modes */
 972        write3X4(CRTMaxScanLine, tmp);
 973
 974        write3X4(CRTLineCompare, 0xFF);
 975        write3X4(CRTPRowScan, 0);
 976        write3X4(CRTModeControl, 0xC3);
 977
 978        write3X4(LinearAddReg, 0x20);   /* enable linear addressing */
 979
 980        tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80;
 981        write3X4(CRTCModuleTest, tmp);  /* enable access extended memory */
 982
 983        write3X4(GraphEngReg, 0x80);    /* enable GE for text acceleration */
 984
 985#ifdef CONFIG_FB_TRIDENT_ACCEL
 986        acc->init_accel(info->var.xres, bpp);
 987#endif
 988
 989        switch (bpp) {
 990        case 8:
 991                tmp = 0x00;
 992                break;
 993        case 16:
 994                tmp = 0x05;
 995                break;
 996        case 24:
 997                tmp = 0x29;
 998                break;
 999        case 32:
1000                tmp = 0x09;
1001                break;
1002        }
1003
1004        write3X4(PixelBusReg, tmp);
1005
1006        tmp = 0x10;
1007        if (chipcyber)
1008                tmp |= 0x20;
1009        write3X4(DRAMControl, tmp);     /* both IO, linear enable */
1010
1011        write3X4(InterfaceSel, read3X4(InterfaceSel) | 0x40);
1012        write3X4(Performance, 0x92);
1013        write3X4(PCIReg, 0x07);         /* MMIO & PCI read and write burst enable */
1014
1015        /* convert from picoseconds to MHz */
1016        par->vclk = 1000000 / info->var.pixclock;
1017        if (bpp == 32)
1018                par->vclk *= 2;
1019        set_vclk(par->vclk);
1020
1021        write3C4(0, 3);
1022        write3C4(1, 1);         /* set char clock 8 dots wide */
1023        write3C4(2, 0x0F);      /* enable 4 maps because needed in chain4 mode */
1024        write3C4(3, 0);
1025        write3C4(4, 0x0E);      /* memory mode enable bitmaps ?? */
1026
1027        write3CE(MiscExtFunc, (bpp == 32) ? 0x1A : 0x12);       /* divide clock by 2 if 32bpp */
1028                                                        /* chain4 mode display and CPU path */
1029        write3CE(0x5, 0x40);    /* no CGA compat, allow 256 col */
1030        write3CE(0x6, 0x05);    /* graphics mode */
1031        write3CE(0x7, 0x0F);    /* planes? */
1032
1033        if (chip_id == CYBERBLADEXPAi1) {
1034                /* This fixes snow-effect in 32 bpp */
1035                write3X4(CRTHSyncStart, 0x84);
1036        }
1037
1038        writeAttr(0x10, 0x41);  /* graphics mode and support 256 color modes */
1039        writeAttr(0x12, 0x0F);  /* planes */
1040        writeAttr(0x13, 0);     /* horizontal pel panning */
1041
1042        /* colors */
1043        for (tmp = 0; tmp < 0x10; tmp++)
1044                writeAttr(tmp, tmp);
1045        readb(par->io_virt + CRT + 0x0A);       /* flip-flop to index */
1046        t_outb(0x20, 0x3C0);                    /* enable attr */
1047
1048        switch (bpp) {
1049        case 8:
1050                tmp = 0;
1051                break;
1052        case 15:
1053                tmp = 0x10;
1054                break;
1055        case 16:
1056                tmp = 0x30;
1057                break;
1058        case 24:
1059        case 32:
1060                tmp = 0xD0;
1061                break;
1062        }
1063
1064        t_inb(0x3C8);
1065        t_inb(0x3C6);
1066        t_inb(0x3C6);
1067        t_inb(0x3C6);
1068        t_inb(0x3C6);
1069        t_outb(tmp, 0x3C6);
1070        t_inb(0x3C8);
1071
1072        if (flatpanel)
1073                set_number_of_lines(info->var.yres);
1074        set_lwidth(info->var.xres * bpp / (4 * 16));
1075        info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
1076        info->fix.line_length = info->var.xres * (bpp >> 3);
1077        info->cmap.len = (bpp == 8) ? 256 : 16;
1078        debug("exit\n");
1079        return 0;
1080}
1081
1082/* Set one color register */
1083static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1084                               unsigned blue, unsigned transp,
1085                               struct fb_info *info)
1086{
1087        int bpp = info->var.bits_per_pixel;
1088
1089        if (regno >= info->cmap.len)
1090                return 1;
1091
1092        if (bpp == 8) {
1093                t_outb(0xFF, 0x3C6);
1094                t_outb(regno, 0x3C8);
1095
1096                t_outb(red >> 10, 0x3C9);
1097                t_outb(green >> 10, 0x3C9);
1098                t_outb(blue >> 10, 0x3C9);
1099
1100        } else if (regno < 16) {
1101                if (bpp == 16) {        /* RGB 565 */
1102                        u32 col;
1103
1104                        col = (red & 0xF800) | ((green & 0xFC00) >> 5) |
1105                                ((blue & 0xF800) >> 11);
1106                        col |= col << 16;
1107                        ((u32 *)(info->pseudo_palette))[regno] = col;
1108                } else if (bpp == 32)           /* ARGB 8888 */
1109                        ((u32*)info->pseudo_palette)[regno] =
1110                                ((transp & 0xFF00) << 16)       |
1111                                ((red & 0xFF00) << 8)           |
1112                                ((green & 0xFF00))              |
1113                                ((blue & 0xFF00) >> 8);
1114        }
1115
1116/*      debug("exit\n"); */
1117        return 0;
1118}
1119
1120/* Try blanking the screen.For flat panels it does nothing */
1121static int tridentfb_blank(int blank_mode, struct fb_info *info)
1122{
1123        unsigned char PMCont, DPMSCont;
1124
1125        debug("enter\n");
1126        if (flatpanel)
1127                return 0;
1128        t_outb(0x04, 0x83C8); /* Read DPMS Control */
1129        PMCont = t_inb(0x83C6) & 0xFC;
1130        DPMSCont = read3CE(PowerStatus) & 0xFC;
1131        switch (blank_mode) {
1132        case FB_BLANK_UNBLANK:
1133                /* Screen: On, HSync: On, VSync: On */
1134        case FB_BLANK_NORMAL:
1135                /* Screen: Off, HSync: On, VSync: On */
1136                PMCont |= 0x03;
1137                DPMSCont |= 0x00;
1138                break;
1139        case FB_BLANK_HSYNC_SUSPEND:
1140                /* Screen: Off, HSync: Off, VSync: On */
1141                PMCont |= 0x02;
1142                DPMSCont |= 0x01;
1143                break;
1144        case FB_BLANK_VSYNC_SUSPEND:
1145                /* Screen: Off, HSync: On, VSync: Off */
1146                PMCont |= 0x02;
1147                DPMSCont |= 0x02;
1148                break;
1149        case FB_BLANK_POWERDOWN:
1150                /* Screen: Off, HSync: Off, VSync: Off */
1151                PMCont |= 0x00;
1152                DPMSCont |= 0x03;
1153                break;
1154        }
1155
1156        write3CE(PowerStatus, DPMSCont);
1157        t_outb(4, 0x83C8);
1158        t_outb(PMCont, 0x83C6);
1159
1160        debug("exit\n");
1161
1162        /* let fbcon do a softblank for us */
1163        return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
1164}
1165
1166static struct fb_ops tridentfb_ops = {
1167        .owner = THIS_MODULE,
1168        .fb_setcolreg = tridentfb_setcolreg,
1169        .fb_pan_display = tridentfb_pan_display,
1170        .fb_blank = tridentfb_blank,
1171        .fb_check_var = tridentfb_check_var,
1172        .fb_set_par = tridentfb_set_par,
1173        .fb_fillrect = tridentfb_fillrect,
1174        .fb_copyarea = tridentfb_copyarea,
1175        .fb_imageblit = cfb_imageblit,
1176};
1177
1178static int __devinit trident_pci_probe(struct pci_dev * dev,
1179                                       const struct pci_device_id * id)
1180{
1181        int err;
1182        unsigned char revision;
1183
1184        err = pci_enable_device(dev);
1185        if (err)
1186                return err;
1187
1188        chip_id = id->device;
1189
1190        if (chip_id == CYBERBLADEi1)
1191                output("*** Please do use cyblafb, Cyberblade/i1 support "
1192                       "will soon be removed from tridentfb!\n");
1193
1194
1195        /* If PCI id is 0x9660 then further detect chip type */
1196
1197        if (chip_id == TGUI9660) {
1198                outb(RevisionID, 0x3C4);
1199                revision = inb(0x3C5);
1200
1201                switch (revision) {
1202                case 0x22:
1203                case 0x23:
1204                        chip_id = CYBER9397;
1205                        break;
1206                case 0x2A:
1207                        chip_id = CYBER9397DVD;
1208                        break;
1209                case 0x30:
1210                case 0x33:
1211                case 0x34:
1212                case 0x35:
1213                case 0x38:
1214                case 0x3A:
1215                case 0xB3:
1216                        chip_id = CYBER9385;
1217                        break;
1218                case 0x40 ... 0x43:
1219                        chip_id = CYBER9382;
1220                        break;
1221                case 0x4A:
1222                        chip_id = CYBER9388;
1223                        break;
1224                default:
1225                        break;
1226                }
1227        }
1228
1229        chip3D = is3Dchip(chip_id);
1230        chipcyber = iscyber(chip_id);
1231
1232        if (is_xp(chip_id)) {
1233                acc = &accel_xp;
1234        } else if (is_blade(chip_id)) {
1235                acc = &accel_blade;
1236        } else {
1237                acc = &accel_image;
1238        }
1239
1240        /* acceleration is on by default for 3D chips */
1241        defaultaccel = chip3D && !noaccel;
1242
1243        fb_info.par = &default_par;
1244
1245        /* setup MMIO region */
1246        tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
1247        tridentfb_fix.mmio_len = chip3D ? 0x20000 : 0x10000;
1248
1249        if (!request_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len, "tridentfb")) {
1250                debug("request_region failed!\n");
1251                return -1;
1252        }
1253
1254        default_par.io_virt = ioremap_nocache(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1255
1256        if (!default_par.io_virt) {
1257                debug("ioremap failed\n");
1258                err = -1;
1259                goto out_unmap1;
1260        }
1261
1262        enable_mmio();
1263
1264        /* setup framebuffer memory */
1265        tridentfb_fix.smem_start = pci_resource_start(dev, 0);
1266        tridentfb_fix.smem_len = get_memsize();
1267
1268        if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) {
1269                debug("request_mem_region failed!\n");
1270                disable_mmio();
1271                err = -1;
1272                goto out_unmap1;
1273        }
1274
1275        fb_info.screen_base = ioremap_nocache(tridentfb_fix.smem_start,
1276                                              tridentfb_fix.smem_len);
1277
1278        if (!fb_info.screen_base) {
1279                debug("ioremap failed\n");
1280                err = -1;
1281                goto out_unmap2;
1282        }
1283
1284        output("%s board found\n", pci_name(dev));
1285        displaytype = get_displaytype();
1286
1287        if (flatpanel)
1288                nativex = get_nativex();
1289
1290        fb_info.fix = tridentfb_fix;
1291        fb_info.fbops = &tridentfb_ops;
1292
1293
1294        fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1295#ifdef CONFIG_FB_TRIDENT_ACCEL
1296        fb_info.flags |= FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
1297#endif
1298        fb_info.pseudo_palette = pseudo_pal;
1299
1300        if (!fb_find_mode(&default_var, &fb_info, mode, NULL, 0, NULL, bpp)) {
1301                err = -EINVAL;
1302                goto out_unmap2;
1303        }
1304        err = fb_alloc_cmap(&fb_info.cmap, 256, 0);
1305        if (err < 0)
1306                goto out_unmap2;
1307
1308        if (defaultaccel && acc)
1309                default_var.accel_flags |= FB_ACCELF_TEXT;
1310        else
1311                default_var.accel_flags &= ~FB_ACCELF_TEXT;
1312        default_var.activate |= FB_ACTIVATE_NOW;
1313        fb_info.var = default_var;
1314        fb_info.device = &dev->dev;
1315        if (register_framebuffer(&fb_info) < 0) {
1316                printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n");
1317                fb_dealloc_cmap(&fb_info.cmap);
1318                err = -EINVAL;
1319                goto out_unmap2;
1320        }
1321        output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
1322           fb_info.node, fb_info.fix.id, default_var.xres,
1323           default_var.yres, default_var.bits_per_pixel);
1324        return 0;
1325
1326out_unmap2:
1327        if (fb_info.screen_base)
1328                iounmap(fb_info.screen_base);
1329        release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1330        disable_mmio();
1331out_unmap1:
1332        if (default_par.io_virt)
1333                iounmap(default_par.io_virt);
1334        release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1335        return err;
1336}
1337
1338static void __devexit trident_pci_remove(struct pci_dev *dev)
1339{
1340        struct tridentfb_par *par = (struct tridentfb_par*)fb_info.par;
1341        unregister_framebuffer(&fb_info);
1342        iounmap(par->io_virt);
1343        iounmap(fb_info.screen_base);
1344        release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1345        release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1346}
1347
1348/* List of boards that we are trying to support */
1349static struct pci_device_id trident_devices[] = {
1350        {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1351        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1352        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1353        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1354        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1355        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1356        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1357        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1358        {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1359        {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1360        {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1361        {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1362        {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1363        {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1364        {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1365        {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1366        {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1367        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1368        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1369        {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1370        {0,}
1371};
1372
1373MODULE_DEVICE_TABLE(pci, trident_devices);
1374
1375static struct pci_driver tridentfb_pci_driver = {
1376        .name = "tridentfb",
1377        .id_table = trident_devices,
1378        .probe = trident_pci_probe,
1379        .remove = __devexit_p(trident_pci_remove)
1380};
1381
1382/*
1383 * Parse user specified options (`video=trident:')
1384 * example:
1385 *      video=trident:800x600,bpp=16,noaccel
1386 */
1387#ifndef MODULE
1388static int tridentfb_setup(char *options)
1389{
1390        char *opt;
1391        if (!options || !*options)
1392                return 0;
1393        while ((opt = strsep(&options, ",")) != NULL) {
1394                if (!*opt)
1395                        continue;
1396                if (!strncmp(opt, "noaccel", 7))
1397                        noaccel = 1;
1398                else if (!strncmp(opt, "fp", 2))
1399                        displaytype = DISPLAY_FP;
1400                else if (!strncmp(opt, "crt", 3))
1401                        displaytype = DISPLAY_CRT;
1402                else if (!strncmp(opt, "bpp=", 4))
1403                        bpp = simple_strtoul(opt + 4, NULL, 0);
1404                else if (!strncmp(opt, "center", 6))
1405                        center = 1;
1406                else if (!strncmp(opt, "stretch", 7))
1407                        stretch = 1;
1408                else if (!strncmp(opt, "memsize=", 8))
1409                        memsize = simple_strtoul(opt + 8, NULL, 0);
1410                else if (!strncmp(opt, "memdiff=", 8))
1411                        memdiff = simple_strtoul(opt + 8, NULL, 0);
1412                else if (!strncmp(opt, "nativex=", 8))
1413                        nativex = simple_strtoul(opt + 8, NULL, 0);
1414                else
1415                        mode = opt;
1416        }
1417        return 0;
1418}
1419#endif
1420
1421static int __init tridentfb_init(void)
1422{
1423#ifndef MODULE
1424        char *option = NULL;
1425
1426        if (fb_get_options("tridentfb", &option))
1427                return -ENODEV;
1428        tridentfb_setup(option);
1429#endif
1430        output("Trident framebuffer %s initializing\n", VERSION);
1431        return pci_register_driver(&tridentfb_pci_driver);
1432}
1433
1434static void __exit tridentfb_exit(void)
1435{
1436        pci_unregister_driver(&tridentfb_pci_driver);
1437}
1438
1439module_init(tridentfb_init);
1440module_exit(tridentfb_exit);
1441
1442MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
1443MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
1444MODULE_LICENSE("GPL");
1445
1446
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.