kernel/drivers/staging/xgifb/XGI_main_26.c

   1 /*
   2  * XG20, XG21, XG40, XG42 frame buffer device
   3  * for Linux kernels  2.5.x, 2.6.x
   4  * Base on TW's sis fbdev code.
   5  */
   6
   7 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
   8
   9 #include <linux/sizes.h>
  10 #include <linux/module.h>
  11
  12 #ifdef CONFIG_MTRR
  13 #include <asm/mtrr.h>
  14 #endif
  15
  16 #include "XGI_main.h"
  17 #include "vb_init.h"
  18 #include "vb_util.h"
  19 #include "vb_setmode.h"
  20
  21 #define Index_CR_GPIO_Reg1 0x48
  22 #define Index_CR_GPIO_Reg3 0x4a
  23
  24 #define GPIOG_EN    (1<<6)
  25 #define GPIOG_READ  (1<<1)
  26
  27 static char *forcecrt2type;
  28 static char *mode;
  29 static int vesa = -1;
  30 static unsigned int refresh_rate;
  31
  32 /* -------------------- Macro definitions ---------------------------- */
  33
  34 #ifdef DEBUG
  35 static void dumpVGAReg(void)
  36 {
  37         u8 i, reg;
  38
  39         xgifb_reg_set(XGISR, 0x05, 0x86);
  40
  41         for (i = 0; i < 0x4f; i++) {
  42                 reg = xgifb_reg_get(XGISR, i);
  43                 pr_debug("o 3c4 %x\n", i);
  44                 pr_debug("i 3c5 => %x\n", reg);
  45         }
  46
  47         for (i = 0; i < 0xF0; i++) {
  48                 reg = xgifb_reg_get(XGICR, i);
  49                 pr_debug("o 3d4 %x\n", i);
  50                 pr_debug("i 3d5 => %x\n", reg);
  51         }
  52 }
  53 #else
  54 static inline void dumpVGAReg(void)
  55 {
  56 }
  57 #endif
  58
  59 /* --------------- Hardware Access Routines -------------------------- */
  60
  61 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
  62                 struct xgi_hw_device_info *HwDeviceExtension,
  63                 unsigned char modeno)
  64 {
  65         unsigned short ModeNo = modeno;
  66         unsigned short ModeIdIndex = 0, ClockIndex = 0;
  67         unsigned short RefreshRateTableIndex = 0;
  68         int Clock;
  69
  70         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  71
  72         XGI_SearchModeID(ModeNo, &ModeIdIndex);
  73
  74         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  75                         ModeIdIndex, XGI_Pr);
  76
  77         ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
  78
  79         Clock = XGI_VCLKData[ClockIndex].CLOCK * 1000;
  80
  81         return Clock;
  82 }
  83
  84 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
  85                 struct xgi_hw_device_info *HwDeviceExtension,
  86                 unsigned char modeno,
  87                 u32 *left_margin, u32 *right_margin, u32 *upper_margin,
  88                 u32 *lower_margin, u32 *hsync_len, u32 *vsync_len, u32 *sync,
  89                 u32 *vmode)
  90 {
  91         unsigned short ModeNo = modeno;
  92         unsigned short ModeIdIndex, index = 0;
  93         unsigned short RefreshRateTableIndex = 0;
  94
  95         unsigned short VRE, VBE, VRS, VDE;
  96         unsigned short HRE, HBE, HRS, HDE;
  97         unsigned char sr_data, cr_data, cr_data2;
  98         int B, C, D, F, temp, j;
  99
 100         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
 101         if (!XGI_SearchModeID(ModeNo, &ModeIdIndex))
 102                 return 0;
 103         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 104                         ModeIdIndex, XGI_Pr);
 105         index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 106
 107         sr_data = XGI_CRT1Table[index].CR[5];
 108
 109         HDE = XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3;
 110
 111         cr_data = XGI_CRT1Table[index].CR[3];
 112
 113         /* Horizontal retrace (=sync) start */
 114         HRS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0xC0) << 2);
 115         F = HRS - HDE - 3;
 116
 117         sr_data = XGI_CRT1Table[index].CR[6];
 118
 119         cr_data = XGI_CRT1Table[index].CR[2];
 120
 121         cr_data2 = XGI_CRT1Table[index].CR[4];
 122
 123         /* Horizontal blank end */
 124         HBE = (cr_data & 0x1f) | ((unsigned short) (cr_data2 & 0x80) >> 2)
 125                         | ((unsigned short) (sr_data & 0x03) << 6);
 126
 127         /* Horizontal retrace (=sync) end */
 128         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 129
 130         temp = HBE - ((HDE - 1) & 255);
 131         B = (temp > 0) ? temp : (temp + 256);
 132
 133         temp = HRE - ((HDE + F + 3) & 63);
 134         C = (temp > 0) ? temp : (temp + 64);
 135
 136         D = B - F - C;
 137
 138         *left_margin = D * 8;
 139         *right_margin = F * 8;
 140         *hsync_len = C * 8;
 141
 142         sr_data = XGI_CRT1Table[index].CR[14];
 143
 144         cr_data2 = XGI_CRT1Table[index].CR[9];
 145
 146         VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes;
 147
 148         cr_data = XGI_CRT1Table[index].CR[10];
 149
 150         /* Vertical retrace (=sync) start */
 151         VRS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x04) << 6)
 152                         | ((unsigned short) (cr_data2 & 0x80) << 2)
 153                         | ((unsigned short) (sr_data & 0x08) << 7);
 154         F = VRS + 1 - VDE;
 155
 156         cr_data = XGI_CRT1Table[index].CR[13];
 157
 158         /* Vertical blank end */
 159         VBE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x10) << 4);
 160         temp = VBE - ((VDE - 1) & 511);
 161         B = (temp > 0) ? temp : (temp + 512);
 162
 163         cr_data = XGI_CRT1Table[index].CR[11];
 164
 165         /* Vertical retrace (=sync) end */
 166         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 167         temp = VRE - ((VDE + F - 1) & 31);
 168         C = (temp > 0) ? temp : (temp + 32);
 169
 170         D = B - F - C;
 171
 172         *upper_margin = D;
 173         *lower_margin = F;
 174         *vsync_len = C;
 175
 176         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 177                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 178         else
 179                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 180
 181         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 182                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 183         else
 184                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 185
 186         *vmode = FB_VMODE_NONINTERLACED;
 187         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080)
 188                 *vmode = FB_VMODE_INTERLACED;
 189         else {
 190                 j = 0;
 191                 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
 192                         if (XGI330_EModeIDTable[j].Ext_ModeID ==
 193                             XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
 194                                 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
 195                                     DoubleScanMode) {
 196                                         *vmode = FB_VMODE_DOUBLE;
 197                                 }
 198                                 break;
 199                         }
 200                         j++;
 201                 }
 202         }
 203
 204         return 1;
 205 }
 206
 207 void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 208 {
 209         XGI_Pr->P3c4 = BaseAddr + 0x14;
 210         XGI_Pr->P3d4 = BaseAddr + 0x24;
 211         XGI_Pr->P3c0 = BaseAddr + 0x10;
 212         XGI_Pr->P3ce = BaseAddr + 0x1e;
 213         XGI_Pr->P3c2 = BaseAddr + 0x12;
 214         XGI_Pr->P3cc = BaseAddr + 0x1c;
 215         XGI_Pr->P3ca = BaseAddr + 0x1a;
 216         XGI_Pr->P3c6 = BaseAddr + 0x16;
 217         XGI_Pr->P3c7 = BaseAddr + 0x17;
 218         XGI_Pr->P3c8 = BaseAddr + 0x18;
 219         XGI_Pr->P3c9 = BaseAddr + 0x19;
 220         XGI_Pr->P3da = BaseAddr + 0x2A;
 221         XGI_Pr->Part0Port = BaseAddr + XGI_CRT2_PORT_00;
 222         /* Digital video interface registers (LCD) */
 223         XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
 224         /* 301 TV Encoder registers */
 225         XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
 226         /* 301 Macrovision registers */
 227         XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
 228         /* 301 VGA2 (and LCD) registers */
 229         XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
 230         /* 301 palette address port registers */
 231         XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
 232
 233 }
 234
 235 /* ------------------ Internal helper routines ----------------- */
 236
 237 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 238 {
 239         int i = 0;
 240
 241         while ((XGIbios_mode[i].mode_no != 0)
 242                && (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
 243                 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE)
 244                     && (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE)
 245                     && (XGIbios_mode[i].bpp == 8)) {
 246                         return i;
 247                 }
 248                 i++;
 249         }
 250
 251         return -1;
 252 }
 253
 254 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 255                               const char *name)
 256 {
 257         unsigned int xres;
 258         unsigned int yres;
 259         unsigned int bpp;
 260         int i;
 261
 262         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 263                 goto invalid_mode;
 264
 265         if (bpp == 24)
 266                 bpp = 32; /* That's for people who mix up color and fb depth. */
 267
 268         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 269                 if (XGIbios_mode[i].xres == xres &&
 270                     XGIbios_mode[i].yres == yres &&
 271                     XGIbios_mode[i].bpp == bpp) {
 272                         xgifb_info->mode_idx = i;
 273                         return;
 274                 }
 275 invalid_mode:
 276         pr_info("Invalid mode '%s'\n", name);
 277 }
 278
 279 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 280                                   unsigned int vesamode)
 281 {
 282         int i = 0;
 283
 284         if (vesamode == 0)
 285                 goto invalid;
 286
 287         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 288
 289         while (XGIbios_mode[i].mode_no != 0) {
 290                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 291                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 292                         xgifb_info->mode_idx = i;
 293                         return;
 294                 }
 295                 i++;
 296         }
 297
 298 invalid:
 299         pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 300 }
 301
 302 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 303 {
 304         u16 xres, yres;
 305         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 306         unsigned long required_mem;
 307
 308         if (xgifb_info->chip == XG21) {
 309                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 310                         xres = xgifb_info->lvds_data.LVDSHDE;
 311                         yres = xgifb_info->lvds_data.LVDSVDE;
 312                         if (XGIbios_mode[myindex].xres > xres)
 313                                 return -1;
 314                         if (XGIbios_mode[myindex].yres > yres)
 315                                 return -1;
 316                         if ((XGIbios_mode[myindex].xres < xres) &&
 317                             (XGIbios_mode[myindex].yres < yres)) {
 318                                 if (XGIbios_mode[myindex].bpp > 8)
 319                                         return -1;
 320                         }
 321
 322                 }
 323                 goto check_memory;
 324
 325         }
 326
 327         /* FIXME: for now, all is valid on XG27 */
 328         if (xgifb_info->chip == XG27)
 329                 goto check_memory;
 330
 331         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 332                 return -1;
 333
 334         switch (xgifb_info->display2) {
 335         case XGIFB_DISP_LCD:
 336                 switch (hw_info->ulCRT2LCDType) {
 337                 case LCD_640x480:
 338                         xres = 640;
 339                         yres = 480;
 340                         break;
 341                 case LCD_800x600:
 342                         xres = 800;
 343                         yres = 600;
 344                         break;
 345                 case LCD_1024x600:
 346                         xres = 1024;
 347                         yres = 600;
 348                         break;
 349                 case LCD_1024x768:
 350                         xres = 1024;
 351                         yres = 768;
 352                         break;
 353                 case LCD_1152x768:
 354                         xres = 1152;
 355                         yres = 768;
 356                         break;
 357                 case LCD_1280x960:
 358                         xres = 1280;
 359                         yres = 960;
 360                         break;
 361                 case LCD_1280x768:
 362                         xres = 1280;
 363                         yres = 768;
 364                         break;
 365                 case LCD_1280x1024:
 366                         xres = 1280;
 367                         yres = 1024;
 368                         break;
 369                 case LCD_1400x1050:
 370                         xres = 1400;
 371                         yres = 1050;
 372                         break;
 373                 case LCD_1600x1200:
 374                         xres = 1600;
 375                         yres = 1200;
 376                         break;
 377                 default:
 378                         xres = 0;
 379                         yres = 0;
 380                         break;
 381                 }
 382                 if (XGIbios_mode[myindex].xres > xres)
 383                         return -1;
 384                 if (XGIbios_mode[myindex].yres > yres)
 385                         return -1;
 386                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 387                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 388                         switch (XGIbios_mode[myindex].xres) {
 389                         case 512:
 390                                 if (XGIbios_mode[myindex].yres != 512)
 391                                         return -1;
 392                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 393                                         return -1;
 394                                 break;
 395                         case 640:
 396                                 if ((XGIbios_mode[myindex].yres != 400)
 397                                                 && (XGIbios_mode[myindex].yres
 398                                                                 != 480))
 399                                         return -1;
 400                                 break;
 401                         case 800:
 402                                 if (XGIbios_mode[myindex].yres != 600)
 403                                         return -1;
 404                                 break;
 405                         case 1024:
 406                                 if ((XGIbios_mode[myindex].yres != 600) &&
 407                                     (XGIbios_mode[myindex].yres != 768))
 408                                         return -1;
 409                                 if ((XGIbios_mode[myindex].yres == 600) &&
 410                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 411                                         return -1;
 412                                 break;
 413                         case 1152:
 414                                 if ((XGIbios_mode[myindex].yres) != 768)
 415                                         return -1;
 416                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 417                                         return -1;
 418                                 break;
 419                         case 1280:
 420                                 if ((XGIbios_mode[myindex].yres != 768) &&
 421                                     (XGIbios_mode[myindex].yres != 1024))
 422                                         return -1;
 423                                 if ((XGIbios_mode[myindex].yres == 768) &&
 424                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 425                                         return -1;
 426                                 break;
 427                         case 1400:
 428                                 if (XGIbios_mode[myindex].yres != 1050)
 429                                         return -1;
 430                                 break;
 431                         case 1600:
 432                                 if (XGIbios_mode[myindex].yres != 1200)
 433                                         return -1;
 434                                 break;
 435                         default:
 436                                 return -1;
 437                         }
 438                 } else {
 439                         switch (XGIbios_mode[myindex].xres) {
 440                         case 512:
 441                                 if (XGIbios_mode[myindex].yres != 512)
 442                                         return -1;
 443                                 break;
 444                         case 640:
 445                                 if ((XGIbios_mode[myindex].yres != 400) &&
 446                                     (XGIbios_mode[myindex].yres != 480))
 447                                         return -1;
 448                                 break;
 449                         case 800:
 450                                 if (XGIbios_mode[myindex].yres != 600)
 451                                         return -1;
 452                                 break;
 453                         case 1024:
 454                                 if (XGIbios_mode[myindex].yres != 768)
 455                                         return -1;
 456                                 break;
 457                         case 1280:
 458                                 if ((XGIbios_mode[myindex].yres != 960) &&
 459                                     (XGIbios_mode[myindex].yres != 1024))
 460                                         return -1;
 461                                 if (XGIbios_mode[myindex].yres == 960) {
 462                                         if (hw_info->ulCRT2LCDType ==
 463                                             LCD_1400x1050)
 464                                                 return -1;
 465                                 }
 466                                 break;
 467                         case 1400:
 468                                 if (XGIbios_mode[myindex].yres != 1050)
 469                                         return -1;
 470                                 break;
 471                         case 1600:
 472                                 if (XGIbios_mode[myindex].yres != 1200)
 473                                         return -1;
 474                                 break;
 475                         default:
 476                                 return -1;
 477                         }
 478                 }
 479                 break;
 480         case XGIFB_DISP_TV:
 481                 switch (XGIbios_mode[myindex].xres) {
 482                 case 512:
 483                 case 640:
 484                 case 800:
 485                         break;
 486                 case 720:
 487                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 488                                 if (XGIbios_mode[myindex].yres != 480)
 489                                         return -1;
 490                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 491                                 if (XGIbios_mode[myindex].yres != 576)
 492                                         return -1;
 493                         }
 494                         /* LVDS/CHRONTEL does not support 720 */
 495                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 496                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 497                                 return -1;
 498                         }
 499                         break;
 500                 case 1024:
 501                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 502                                 if (XGIbios_mode[myindex].bpp == 32)
 503                                         return -1;
 504                         }
 505                         break;
 506                 default:
 507                         return -1;
 508                 }
 509                 break;
 510         case XGIFB_DISP_CRT:
 511                 if (XGIbios_mode[myindex].xres > 1280)
 512                         return -1;
 513                 break;
 514         case XGIFB_DISP_NONE:
 515                 break;
 516         }
 517
 518 check_memory:
 519         required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
 520                        XGIbios_mode[myindex].bpp / 8;
 521         if (required_mem > xgifb_info->video_size)
 522                 return -1;
 523         return myindex;
 524
 525 }
 526
 527 static void XGIfb_search_crt2type(const char *name)
 528 {
 529         int i = 0;
 530
 531         if (name == NULL)
 532                 return;
 533
 534         while (XGI_crt2type[i].type_no != -1) {
 535                 if (!strcmp(name, XGI_crt2type[i].name)) {
 536                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 537                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 538                         break;
 539                 }
 540                 i++;
 541         }
 542         if (XGIfb_crt2type < 0)
 543                 pr_info("Invalid CRT2 type: %s\n", name);
 544 }
 545
 546 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 547                                     unsigned int rate)
 548 {
 549         u16 xres, yres;
 550         int i = 0;
 551
 552         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 553         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 554
 555         xgifb_info->rate_idx = 0;
 556         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 557                 if ((XGIfb_vrate[i].xres == xres) &&
 558                     (XGIfb_vrate[i].yres == yres)) {
 559                         if (XGIfb_vrate[i].refresh == rate) {
 560                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 561                                 break;
 562                         } else if (XGIfb_vrate[i].refresh > rate) {
 563                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 564                                         pr_debug("Adjusting rate from %d up to %d\n",
 565                                                  rate, XGIfb_vrate[i].refresh);
 566                                         xgifb_info->rate_idx =
 567                                                 XGIfb_vrate[i].idx;
 568                                         xgifb_info->refresh_rate =
 569                                                 XGIfb_vrate[i].refresh;
 570                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 571                                                 <= 2) && (XGIfb_vrate[i].idx
 572                                                 != 1)) {
 573                                         pr_debug("Adjusting rate from %d down to %d\n",
 574                                                  rate,
 575                                                  XGIfb_vrate[i-1].refresh);
 576                                         xgifb_info->rate_idx =
 577                                                 XGIfb_vrate[i - 1].idx;
 578                                         xgifb_info->refresh_rate =
 579                                                 XGIfb_vrate[i - 1].refresh;
 580                                 }
 581                                 break;
 582                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 583                                 pr_debug("Adjusting rate from %d down to %d\n",
 584                                          rate, XGIfb_vrate[i].refresh);
 585                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 586                                 break;
 587                         }
 588                 }
 589                 i++;
 590         }
 591         if (xgifb_info->rate_idx > 0)
 592                 return xgifb_info->rate_idx;
 593         pr_info("Unsupported rate %d for %dx%d\n",
 594                 rate, xres, yres);
 595         return 0;
 596 }
 597
 598 static void XGIfb_search_tvstd(const char *name)
 599 {
 600         int i = 0;
 601
 602         if (name == NULL)
 603                 return;
 604
 605         while (XGI_tvtype[i].type_no != -1) {
 606                 if (!strcmp(name, XGI_tvtype[i].name)) {
 607                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 608                         break;
 609                 }
 610                 i++;
 611         }
 612 }
 613
 614 /* ----------- FBDev related routines for all series ----------- */
 615
 616 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 617                              struct fb_var_screeninfo *var)
 618 {
 619         switch (var->bits_per_pixel) {
 620         case 8:
 621                 var->red.offset = var->green.offset = var->blue.offset = 0;
 622                 var->red.length = var->green.length = var->blue.length = 6;
 623                 xgifb_info->video_cmap_len = 256;
 624                 break;
 625         case 16:
 626                 var->red.offset = 11;
 627                 var->red.length = 5;
 628                 var->green.offset = 5;
 629                 var->green.length = 6;
 630                 var->blue.offset = 0;
 631                 var->blue.length = 5;
 632                 var->transp.offset = 0;
 633                 var->transp.length = 0;
 634                 xgifb_info->video_cmap_len = 16;
 635                 break;
 636         case 32:
 637                 var->red.offset = 16;
 638                 var->red.length = 8;
 639                 var->green.offset = 8;
 640                 var->green.length = 8;
 641                 var->blue.offset = 0;
 642                 var->blue.length = 8;
 643                 var->transp.offset = 24;
 644                 var->transp.length = 8;
 645                 xgifb_info->video_cmap_len = 16;
 646                 break;
 647         }
 648 }
 649
 650 /* --------------------- SetMode routines ------------------------- */
 651
 652 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 653 {
 654         u8 cr30 = 0, cr31 = 0;
 655
 656         cr31 = xgifb_reg_get(XGICR, 0x31);
 657         cr31 &= ~0x60;
 658
 659         switch (xgifb_info->display2) {
 660         case XGIFB_DISP_CRT:
 661                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 662                 cr31 |= SIS_DRIVER_MODE;
 663                 break;
 664         case XGIFB_DISP_LCD:
 665                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 666                 cr31 |= SIS_DRIVER_MODE;
 667                 break;
 668         case XGIFB_DISP_TV:
 669                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 670                         cr30 = (SIS_VB_OUTPUT_HIVISION
 671                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 672                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 673                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 674                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 675                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 676                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 677                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 678                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 679                         cr30 = (SIS_VB_OUTPUT_SCART
 680                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 681                 cr31 |= SIS_DRIVER_MODE;
 682
 683                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 684                         cr31 |= 0x01;
 685                 else
 686                         cr31 &= ~0x01;
 687                 break;
 688         default: /* disable CRT2 */
 689                 cr30 = 0x00;
 690                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 691         }
 692
 693         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 694         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 695         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 696                                                 (xgifb_info->rate_idx & 0x0F));
 697 }
 698
 699 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 700 {
 701         u8 reg;
 702         unsigned char doit = 1;
 703
 704         if (xgifb_info->video_bpp == 8) {
 705                 /*
 706                  * We can't switch off CRT1 on LVDS/Chrontel
 707                  * in 8bpp Modes
 708                  */
 709                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 710                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 711                         doit = 0;
 712                 }
 713                 /*
 714                  * We can't switch off CRT1 on 301B-DH
 715                  * in 8bpp Modes if using LCD
 716                  */
 717                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 718                         doit = 0;
 719         }
 720
 721         /* We can't switch off CRT1 if bridge is in slave mode */
 722         if (xgifb_info->hasVB != HASVB_NONE) {
 723                 reg = xgifb_reg_get(XGIPART1, 0x00);
 724
 725                 if ((reg & 0x50) == 0x10)
 726                         doit = 0;
 727
 728         } else {
 729                 XGIfb_crt1off = 0;
 730         }
 731
 732         reg = xgifb_reg_get(XGICR, 0x17);
 733         if ((XGIfb_crt1off) && (doit))
 734                 reg &= ~0x80;
 735         else
 736                 reg |= 0x80;
 737         xgifb_reg_set(XGICR, 0x17, reg);
 738
 739         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 740
 741         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 742             xgifb_info->hasVB == HASVB_301) {
 743
 744                 reg = xgifb_reg_get(XGIPART4, 0x01);
 745
 746                 if (reg < 0xB0) { /* Set filter for XGI301 */
 747                         int filter_tb;
 748
 749                         switch (xgifb_info->video_width) {
 750                         case 320:
 751                                 filter_tb = (xgifb_info->TV_type ==
 752                                              TVMODE_NTSC) ? 4 : 12;
 753                                 break;
 754                         case 640:
 755                                 filter_tb = (xgifb_info->TV_type ==
 756                                              TVMODE_NTSC) ? 5 : 13;
 757                                 break;
 758                         case 720:
 759                                 filter_tb = (xgifb_info->TV_type ==
 760                                              TVMODE_NTSC) ? 6 : 14;
 761                                 break;
 762                         case 800:
 763                                 filter_tb = (xgifb_info->TV_type ==
 764                                              TVMODE_NTSC) ? 7 : 15;
 765                                 break;
 766                         default:
 767                                 filter_tb = 0;
 768                                 filter = -1;
 769                                 break;
 770                         }
 771                         xgifb_reg_or(XGIPART1,
 772                                      SIS_CRT2_WENABLE_315,
 773                                      0x01);
 774
 775                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 776
 777                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 778
 779                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 780
 781                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 782
 783                                 } else if (xgifb_info->TV_plug
 784                                                 == TVPLUG_COMPOSITE) {
 785
 786                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 787
 788                                         switch (xgifb_info->video_width) {
 789                                         case 640:
 790                                                 xgifb_reg_set(XGIPART2,
 791                                                               0x35,
 792                                                               0xEB);
 793                                                 xgifb_reg_set(XGIPART2,
 794                                                               0x36,
 795                                                               0x04);
 796                                                 xgifb_reg_set(XGIPART2,
 797                                                               0x37,
 798                                                               0x25);
 799                                                 xgifb_reg_set(XGIPART2,
 800                                                               0x38,
 801                                                               0x18);
 802                                                 break;
 803                                         case 720:
 804                                                 xgifb_reg_set(XGIPART2,
 805                                                               0x35,
 806                                                               0xEE);
 807                                                 xgifb_reg_set(XGIPART2,
 808                                                               0x36,
 809                                                               0x0C);
 810                                                 xgifb_reg_set(XGIPART2,
 811                                                               0x37,
 812                                                               0x22);
 813                                                 xgifb_reg_set(XGIPART2,
 814                                                               0x38,
 815                                                               0x08);
 816                                                 break;
 817                                         case 800:
 818                                                 xgifb_reg_set(XGIPART2,
 819                                                               0x35,
 820                                                               0xEB);
 821                                                 xgifb_reg_set(XGIPART2,
 822                                                               0x36,
 823                                                               0x15);
 824                                                 xgifb_reg_set(XGIPART2,
 825                                                               0x37,
 826                                                               0x25);
 827                                                 xgifb_reg_set(XGIPART2,
 828                                                               0x38,
 829                                                               0xF6);
 830                                                 break;
 831                                         }
 832                                 }
 833
 834                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 835
 836                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 837
 838                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 839
 840                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 841
 842                                 } else if (xgifb_info->TV_plug
 843                                                 == TVPLUG_COMPOSITE) {
 844
 845                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 846
 847                                         switch (xgifb_info->video_width) {
 848                                         case 640:
 849                                                 xgifb_reg_set(XGIPART2,
 850                                                               0x35,
 851                                                               0xF1);
 852                                                 xgifb_reg_set(XGIPART2,
 853                                                               0x36,
 854                                                               0xF7);
 855                                                 xgifb_reg_set(XGIPART2,
 856                                                               0x37,
 857                                                               0x1F);
 858                                                 xgifb_reg_set(XGIPART2,
 859                                                               0x38,
 860                                                               0x32);
 861                                                 break;
 862                                         case 720:
 863                                                 xgifb_reg_set(XGIPART2,
 864                                                               0x35,
 865                                                               0xF3);
 866                                                 xgifb_reg_set(XGIPART2,
 867                                                               0x36,
 868                                                               0x00);
 869                                                 xgifb_reg_set(XGIPART2,
 870                                                               0x37,
 871                                                               0x1D);
 872                                                 xgifb_reg_set(XGIPART2,
 873                                                               0x38,
 874                                                               0x20);
 875                                                 break;
 876                                         case 800:
 877                                                 xgifb_reg_set(XGIPART2,
 878                                                               0x35,
 879                                                               0xFC);
 880                                                 xgifb_reg_set(XGIPART2,
 881                                                               0x36,
 882                                                               0xFB);
 883                                                 xgifb_reg_set(XGIPART2,
 884                                                               0x37,
 885                                                               0x14);
 886                                                 xgifb_reg_set(XGIPART2,
 887                                                               0x38,
 888                                                               0x2A);
 889                                                 break;
 890                                         }
 891                                 }
 892                         }
 893
 894                         if ((filter >= 0) && (filter <= 7)) {
 895                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 896                                          filter_tb, filter,
 897                                          4, XGI_TV_filter[filter_tb].
 898                                                    filter[filter]);
 899                                 xgifb_reg_set(
 900                                         XGIPART2,
 901                                         0x35,
 902                                         (XGI_TV_filter[filter_tb].
 903                                                 filter[filter][0]));
 904                                 xgifb_reg_set(
 905                                         XGIPART2,
 906                                         0x36,
 907                                         (XGI_TV_filter[filter_tb].
 908                                                 filter[filter][1]));
 909                                 xgifb_reg_set(
 910                                         XGIPART2,
 911                                         0x37,
 912                                         (XGI_TV_filter[filter_tb].
 913                                                 filter[filter][2]));
 914                                 xgifb_reg_set(
 915                                         XGIPART2,
 916                                         0x38,
 917                                         (XGI_TV_filter[filter_tb].
 918                                                 filter[filter][3]));
 919                         }
 920                 }
 921         }
 922 }
 923
 924 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 925                 struct fb_info *info)
 926 {
 927         struct xgifb_video_info *xgifb_info = info->par;
 928         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 929         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 930                         + var->hsync_len;
 931         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 932                         + var->vsync_len;
 933 #if defined(__BIG_ENDIAN)
 934         u8 cr_data;
 935 #endif
 936         unsigned int drate = 0, hrate = 0;
 937         int found_mode = 0;
 938         int old_mode;
 939
 940         info->var.xres_virtual = var->xres_virtual;
 941         info->var.yres_virtual = var->yres_virtual;
 942         info->var.bits_per_pixel = var->bits_per_pixel;
 943
 944         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 945                 vtotal <<= 1;
 946         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 947                 vtotal <<= 2;
 948
 949         if (!htotal || !vtotal) {
 950                 pr_debug("Invalid 'var' information\n");
 951                 return -EINVAL;
 952         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 953                         var->pixclock, htotal, vtotal);
 954
 955         if (var->pixclock) {
 956                 drate = 1000000000 / var->pixclock;
 957                 hrate = (drate * 1000) / htotal;
 958                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 959                                 / vtotal);
 960         } else {
 961                 xgifb_info->refresh_rate = 60;
 962         }
 963
 964         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 965                var->xres,
 966                var->yres,
 967                var->bits_per_pixel,
 968                xgifb_info->refresh_rate);
 969
 970         old_mode = xgifb_info->mode_idx;
 971         xgifb_info->mode_idx = 0;
 972
 973         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
 974                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
 975                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
 976                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
 977                     (XGIbios_mode[xgifb_info->mode_idx].bpp
 978                                                 == var->bits_per_pixel)) {
 979                         found_mode = 1;
 980                         break;
 981                 }
 982                 xgifb_info->mode_idx++;
 983         }
 984
 985         if (found_mode)
 986                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
 987                                                         xgifb_info->mode_idx);
 988         else
 989                 xgifb_info->mode_idx = -1;
 990
 991         if (xgifb_info->mode_idx < 0) {
 992                 pr_err("Mode %dx%dx%d not supported\n",
 993                        var->xres, var->yres, var->bits_per_pixel);
 994                 xgifb_info->mode_idx = old_mode;
 995                 return -EINVAL;
 996         }
 997
 998         if (XGIfb_search_refresh_rate(xgifb_info,
 999                                       xgifb_info->refresh_rate) == 0) {
1000                 xgifb_info->rate_idx = 1;
1001                 xgifb_info->refresh_rate = 60;
1002         }
1003
1004         if (isactive) {
1005
1006                 XGIfb_pre_setmode(xgifb_info);
1007                 if (XGISetModeNew(xgifb_info, hw_info,
1008                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1009                                         == 0) {
1010                         pr_err("Setting mode[0x%x] failed\n",
1011                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1012                         return -EINVAL;
1013                 }
1014                 info->fix.line_length = (info->var.xres_virtual
1015                                 * info->var.bits_per_pixel) >> 6;
1016
1017                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1018
1019                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1020                 xgifb_reg_set(XGISR,
1021                               0x0E,
1022                               (info->fix.line_length & 0xff00) >> 8);
1023
1024                 XGIfb_post_setmode(xgifb_info);
1025
1026                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1027                          XGIbios_mode[xgifb_info->mode_idx].xres,
1028                          XGIbios_mode[xgifb_info->mode_idx].yres,
1029                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1030                          xgifb_info->refresh_rate);
1031
1032                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1033                 xgifb_info->video_vwidth = info->var.xres_virtual;
1034                 xgifb_info->video_width =
1035                         XGIbios_mode[xgifb_info->mode_idx].xres;
1036                 xgifb_info->video_vheight = info->var.yres_virtual;
1037                 xgifb_info->video_height =
1038                         XGIbios_mode[xgifb_info->mode_idx].yres;
1039                 xgifb_info->org_x = xgifb_info->org_y = 0;
1040                 xgifb_info->video_linelength = info->var.xres_virtual
1041                                 * (xgifb_info->video_bpp >> 3);
1042                 switch (xgifb_info->video_bpp) {
1043                 case 8:
1044                         xgifb_info->DstColor = 0x0000;
1045                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1046                         xgifb_info->video_cmap_len = 256;
1047 #if defined(__BIG_ENDIAN)
1048                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1049                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1050 #endif
1051                         break;
1052                 case 16:
1053                         xgifb_info->DstColor = 0x8000;
1054                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1055 #if defined(__BIG_ENDIAN)
1056                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1057                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1058 #endif
1059                         xgifb_info->video_cmap_len = 16;
1060                         break;
1061                 case 32:
1062                         xgifb_info->DstColor = 0xC000;
1063                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1064                         xgifb_info->video_cmap_len = 16;
1065 #if defined(__BIG_ENDIAN)
1066                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1067                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1068 #endif
1069                         break;
1070                 default:
1071                         xgifb_info->video_cmap_len = 16;
1072                         pr_err("Unsupported depth %d\n",
1073                                xgifb_info->video_bpp);
1074                         break;
1075                 }
1076         }
1077         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1078
1079         dumpVGAReg();
1080         return 0;
1081 }
1082
1083 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1084 {
1085         struct xgifb_video_info *xgifb_info = info->par;
1086         unsigned int base;
1087
1088         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1089
1090         /* calculate base bpp dep. */
1091         switch (info->var.bits_per_pixel) {
1092         case 16:
1093                 base >>= 1;
1094                 break;
1095         case 32:
1096                 break;
1097         case 8:
1098         default:
1099                 base >>= 2;
1100                 break;
1101         }
1102
1103         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1104
1105         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1106         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1107         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1108         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1109         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1110
1111         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1112                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1113                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1114                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1115                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1116                 xgifb_reg_and_or(XGIPART1,
1117                                  0x02,
1118                                  0x7F,
1119                                  ((base >> 24) & 0x01) << 7);
1120         }
1121         return 0;
1122 }
1123
1124 static int XGIfb_open(struct fb_info *info, int user)
1125 {
1126         return 0;
1127 }
1128
1129 static int XGIfb_release(struct fb_info *info, int user)
1130 {
1131         return 0;
1132 }
1133
1134 /* similar to sisfb_get_cmap_len */
1135 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1136 {
1137         return (var->bits_per_pixel == 8) ? 256 : 16;
1138 }
1139
1140 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1141                 unsigned blue, unsigned transp, struct fb_info *info)
1142 {
1143         struct xgifb_video_info *xgifb_info = info->par;
1144
1145         if (regno >= XGIfb_get_cmap_len(&info->var))
1146                 return 1;
1147
1148         switch (info->var.bits_per_pixel) {
1149         case 8:
1150                 outb(regno, XGIDACA);
1151                 outb((red >> 10), XGIDACD);
1152                 outb((green >> 10), XGIDACD);
1153                 outb((blue >> 10), XGIDACD);
1154                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1155                         outb(regno, XGIDAC2A);
1156                         outb((red >> 8), XGIDAC2D);
1157                         outb((green >> 8), XGIDAC2D);
1158                         outb((blue >> 8), XGIDAC2D);
1159                 }
1160                 break;
1161         case 16:
1162                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1163                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1164                                 >> 11);
1165                 break;
1166         case 32:
1167                 red >>= 8;
1168                 green >>= 8;
1169                 blue >>= 8;
1170                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1171                                 << 8) | (blue);
1172                 break;
1173         }
1174         return 0;
1175 }
1176
1177 /* ----------- FBDev related routines for all series ---------- */
1178
1179 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1180                 struct fb_info *info)
1181 {
1182         struct xgifb_video_info *xgifb_info = info->par;
1183
1184         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1185
1186         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1187
1188         /* if register_framebuffer has been called, we must lock */
1189         if (atomic_read(&info->count))
1190                 mutex_lock(&info->mm_lock);
1191
1192         fix->smem_start = xgifb_info->video_base;
1193         fix->smem_len = xgifb_info->video_size;
1194
1195         /* if register_framebuffer has been called, we can unlock */
1196         if (atomic_read(&info->count))
1197                 mutex_unlock(&info->mm_lock);
1198
1199         fix->type = FB_TYPE_PACKED_PIXELS;
1200         fix->type_aux = 0;
1201         if (xgifb_info->video_bpp == 8)
1202                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1203         else
1204                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1205         fix->xpanstep = 0;
1206         if (XGIfb_ypan)
1207                 fix->ypanstep = 1;
1208         fix->ywrapstep = 0;
1209         fix->line_length = xgifb_info->video_linelength;
1210         fix->mmio_start = xgifb_info->mmio_base;
1211         fix->mmio_len = xgifb_info->mmio_size;
1212         fix->accel = FB_ACCEL_SIS_XABRE;
1213
1214         return 0;
1215 }
1216
1217 static int XGIfb_set_par(struct fb_info *info)
1218 {
1219         int err;
1220
1221         err = XGIfb_do_set_var(&info->var, 1, info);
1222         if (err)
1223                 return err;
1224         XGIfb_get_fix(&info->fix, -1, info);
1225         return 0;
1226 }
1227
1228 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1229 {
1230         struct xgifb_video_info *xgifb_info = info->par;
1231         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1232                         + var->hsync_len;
1233         unsigned int vtotal = 0;
1234         unsigned int drate = 0, hrate = 0;
1235         int found_mode = 0;
1236         int refresh_rate, search_idx;
1237
1238         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1239                 vtotal = var->upper_margin + var->yres + var->lower_margin
1240                                 + var->vsync_len;
1241                 vtotal <<= 1;
1242         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1243                 vtotal = var->upper_margin + var->yres + var->lower_margin
1244                                 + var->vsync_len;
1245                 vtotal <<= 2;
1246         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1247                 vtotal = var->upper_margin + (var->yres / 2)
1248                                 + var->lower_margin + var->vsync_len;
1249         } else
1250                 vtotal = var->upper_margin + var->yres + var->lower_margin
1251                                 + var->vsync_len;
1252
1253         if (!(htotal) || !(vtotal)) {
1254                 pr_debug("No valid timing data\n");
1255                 return -EINVAL;
1256         }
1257
1258         if (var->pixclock && htotal && vtotal) {
1259                 drate = 1000000000 / var->pixclock;
1260                 hrate = (drate * 1000) / htotal;
1261                 xgifb_info->refresh_rate =
1262                         (unsigned int) (hrate * 2 / vtotal);
1263                 pr_debug(
1264                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1265                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1266                         __func__, var->pixclock, htotal, vtotal,
1267                         __func__, drate, hrate, xgifb_info->refresh_rate);
1268         } else {
1269                 xgifb_info->refresh_rate = 60;
1270         }
1271
1272         /* Calculation wrong for 1024x600 - force it to 60Hz */
1273         if ((var->xres == 1024) && (var->yres == 600))
1274                 refresh_rate = 60;
1275
1276         search_idx = 0;
1277         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1278                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1279                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1280                         (XGIbios_mode[search_idx].yres == var->yres) &&
1281                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1282                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1283                                 found_mode = 1;
1284                                 break;
1285                         }
1286                 }
1287                 search_idx++;
1288         }
1289
1290         if (!found_mode) {
1291
1292                 pr_err("%dx%dx%d is no valid mode\n",
1293                         var->xres, var->yres, var->bits_per_pixel);
1294                 search_idx = 0;
1295                 while (XGIbios_mode[search_idx].mode_no != 0) {
1296                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1297                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1298                             (var->bits_per_pixel ==
1299                              XGIbios_mode[search_idx].bpp)) {
1300                                 if (XGIfb_validate_mode(xgifb_info,
1301                                                         search_idx) > 0) {
1302                                         found_mode = 1;
1303                                         break;
1304                                 }
1305                         }
1306                         search_idx++;
1307                 }
1308                 if (found_mode) {
1309                         var->xres = XGIbios_mode[search_idx].xres;
1310                         var->yres = XGIbios_mode[search_idx].yres;
1311                         pr_debug("Adapted to mode %dx%dx%d\n",
1312                                 var->xres, var->yres, var->bits_per_pixel);
1313
1314                 } else {
1315                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1316                                 var->xres, var->yres, var->bits_per_pixel);
1317                         return -EINVAL;
1318                 }
1319         }
1320
1321         /* Adapt RGB settings */
1322         XGIfb_bpp_to_var(xgifb_info, var);
1323
1324         if (!XGIfb_ypan) {
1325                 if (var->xres != var->xres_virtual)
1326                         var->xres_virtual = var->xres;
1327                 if (var->yres != var->yres_virtual)
1328                         var->yres_virtual = var->yres;
1329         }
1330
1331         /* Truncate offsets to maximum if too high */
1332         if (var->xoffset > var->xres_virtual - var->xres)
1333                 var->xoffset = var->xres_virtual - var->xres - 1;
1334
1335         if (var->yoffset > var->yres_virtual - var->yres)
1336                 var->yoffset = var->yres_virtual - var->yres - 1;
1337
1338         /* Set everything else to 0 */
1339         var->red.msb_right =
1340         var->green.msb_right =
1341         var->blue.msb_right =
1342         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1343
1344         return 0;
1345 }
1346
1347 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1348                 struct fb_info *info)
1349 {
1350         int err;
1351
1352         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1353                 return -EINVAL;
1354         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1355                 return -EINVAL;
1356
1357         if (var->vmode & FB_VMODE_YWRAP) {
1358                 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1359                         return -EINVAL;
1360         } else if (var->xoffset + info->var.xres > info->var.xres_virtual
1361                                 || var->yoffset + info->var.yres
1362                                                 > info->var.yres_virtual) {
1363                 return -EINVAL;
1364         }
1365         err = XGIfb_pan_var(var, info);
1366         if (err < 0)
1367                 return err;
1368
1369         info->var.xoffset = var->xoffset;
1370         info->var.yoffset = var->yoffset;
1371         if (var->vmode & FB_VMODE_YWRAP)
1372                 info->var.vmode |= FB_VMODE_YWRAP;
1373         else
1374                 info->var.vmode &= ~FB_VMODE_YWRAP;
1375
1376         return 0;
1377 }
1378
1379 static int XGIfb_blank(int blank, struct fb_info *info)
1380 {
1381         struct xgifb_video_info *xgifb_info = info->par;
1382         u8 reg;
1383
1384         reg = xgifb_reg_get(XGICR, 0x17);
1385
1386         if (blank > 0)
1387                 reg &= 0x7f;
1388         else
1389                 reg |= 0x80;
1390
1391         xgifb_reg_set(XGICR, 0x17, reg);
1392         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1393         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1394         return 0;
1395 }
1396
1397 static struct fb_ops XGIfb_ops = {
1398         .owner = THIS_MODULE,
1399         .fb_open = XGIfb_open,
1400         .fb_release = XGIfb_release,
1401         .fb_check_var = XGIfb_check_var,
1402         .fb_set_par = XGIfb_set_par,
1403         .fb_setcolreg = XGIfb_setcolreg,
1404         .fb_pan_display = XGIfb_pan_display,
1405         .fb_blank = XGIfb_blank,
1406         .fb_fillrect = cfb_fillrect,
1407         .fb_copyarea = cfb_copyarea,
1408         .fb_imageblit = cfb_imageblit,
1409 };
1410
1411 /* ---------------- Chip generation dependent routines ---------------- */
1412
1413 /* for XGI 315/550/650/740/330 */
1414
1415 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1416 {
1417
1418         u8 ChannelNum, tmp;
1419         u8 reg = 0;
1420
1421         /* xorg driver sets 32MB * 1 channel */
1422         if (xgifb_info->chip == XG27)
1423                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1424
1425         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1426         if (!reg)
1427                 return -1;
1428
1429         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1430         case XGI_DRAM_SIZE_1MB:
1431                 xgifb_info->video_size = 0x100000;
1432                 break;
1433         case XGI_DRAM_SIZE_2MB:
1434                 xgifb_info->video_size = 0x200000;
1435                 break;
1436         case XGI_DRAM_SIZE_4MB:
1437                 xgifb_info->video_size = 0x400000;
1438                 break;
1439         case XGI_DRAM_SIZE_8MB:
1440                 xgifb_info->video_size = 0x800000;
1441                 break;
1442         case XGI_DRAM_SIZE_16MB:
1443                 xgifb_info->video_size = 0x1000000;
1444                 break;
1445         case XGI_DRAM_SIZE_32MB:
1446                 xgifb_info->video_size = 0x2000000;
1447                 break;
1448         case XGI_DRAM_SIZE_64MB:
1449                 xgifb_info->video_size = 0x4000000;
1450                 break;
1451         case XGI_DRAM_SIZE_128MB:
1452                 xgifb_info->video_size = 0x8000000;
1453                 break;
1454         case XGI_DRAM_SIZE_256MB:
1455                 xgifb_info->video_size = 0x10000000;
1456                 break;
1457         default:
1458                 return -1;
1459         }
1460
1461         tmp = (reg & 0x0c) >> 2;
1462         switch (xgifb_info->chip) {
1463         case XG20:
1464         case XG21:
1465         case XG27:
1466                 ChannelNum = 1;
1467                 break;
1468
1469         case XG42:
1470                 if (reg & 0x04)
1471                         ChannelNum = 2;
1472                 else
1473                         ChannelNum = 1;
1474                 break;
1475
1476         case XG40:
1477         default:
1478                 if (tmp == 2)
1479                         ChannelNum = 2;
1480                 else if (tmp == 3)
1481                         ChannelNum = 3;
1482                 else
1483                         ChannelNum = 1;
1484                 break;
1485         }
1486
1487         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1488
1489         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1490                reg,
1491                xgifb_info->video_size, ChannelNum);
1492         return 0;
1493
1494 }
1495
1496 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1497 {
1498         u8 cr32, temp = 0;
1499
1500         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1501
1502         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1503
1504         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1505                 XGIfb_crt1off = 0;
1506         else {
1507                 if (cr32 & 0x5F)
1508                         XGIfb_crt1off = 1;
1509                 else
1510                         XGIfb_crt1off = 0;
1511         }
1512
1513         if (!xgifb_info->display2_force) {
1514                 if (cr32 & SIS_VB_TV)
1515                         xgifb_info->display2 = XGIFB_DISP_TV;
1516                 else if (cr32 & SIS_VB_LCD)
1517                         xgifb_info->display2 = XGIFB_DISP_LCD;
1518                 else if (cr32 & SIS_VB_CRT2)
1519                         xgifb_info->display2 = XGIFB_DISP_CRT;
1520                 else
1521                         xgifb_info->display2 = XGIFB_DISP_NONE;
1522         }
1523
1524         if (XGIfb_tvplug != -1)
1525                 /* Override with option */
1526                 xgifb_info->TV_plug = XGIfb_tvplug;
1527         else if (cr32 & SIS_VB_HIVISION) {
1528                 xgifb_info->TV_type = TVMODE_HIVISION;
1529                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1530         } else if (cr32 & SIS_VB_SVIDEO)
1531                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1532         else if (cr32 & SIS_VB_COMPOSITE)
1533                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1534         else if (cr32 & SIS_VB_SCART)
1535                 xgifb_info->TV_plug = TVPLUG_SCART;
1536
1537         if (xgifb_info->TV_type == 0) {
1538                 temp = xgifb_reg_get(XGICR, 0x38);
1539                 if (temp & 0x10)
1540                         xgifb_info->TV_type = TVMODE_PAL;
1541                 else
1542                         xgifb_info->TV_type = TVMODE_NTSC;
1543         }
1544
1545         /* Copy forceCRT1 option to CRT1off if option is given */
1546         if (XGIfb_forcecrt1 != -1) {
1547                 if (XGIfb_forcecrt1)
1548                         XGIfb_crt1off = 0;
1549                 else
1550                         XGIfb_crt1off = 1;
1551         }
1552 }
1553
1554 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1555 {
1556         u8 vb_chipid;
1557
1558         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1559         switch (vb_chipid) {
1560         case 0x01:
1561                 xgifb_info->hasVB = HASVB_301;
1562                 break;
1563         case 0x02:
1564                 xgifb_info->hasVB = HASVB_302;
1565                 break;
1566         default:
1567                 xgifb_info->hasVB = HASVB_NONE;
1568                 return 0;
1569         }
1570         return 1;
1571 }
1572
1573 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1574 {
1575         u8 reg;
1576
1577         if (!XGIfb_has_VB(xgifb_info)) {
1578                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1579                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1580                 case SIS_EXTERNAL_CHIP_LVDS:
1581                         xgifb_info->hasVB = HASVB_LVDS;
1582                         break;
1583                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1584                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1585                         break;
1586                 default:
1587                         break;
1588                 }
1589         }
1590 }
1591
1592 static int __init xgifb_optval(char *fullopt, int validx)
1593 {
1594         unsigned long lres;
1595
1596         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1597                 pr_err("Invalid value for option: %s\n", fullopt);
1598                 return 0;
1599         }
1600         return lres;
1601 }
1602
1603 static int __init XGIfb_setup(char *options)
1604 {
1605         char *this_opt;
1606
1607         if (!options || !*options)
1608                 return 0;
1609
1610         pr_info("Options: %s\n", options);
1611
1612         while ((this_opt = strsep(&options, ",")) != NULL) {
1613
1614                 if (!*this_opt)
1615                         continue;
1616
1617                 if (!strncmp(this_opt, "mode:", 5)) {
1618                         mode = this_opt + 5;
1619                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1620                         vesa = xgifb_optval(this_opt, 5);
1621                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1622                         refresh_rate = xgifb_optval(this_opt, 6);
1623                 } else if (!strncmp(this_opt, "rate:", 5)) {
1624                         refresh_rate = xgifb_optval(this_opt, 5);
1625                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1626                         XGIfb_crt1off = 1;
1627                 } else if (!strncmp(this_opt, "filter:", 7)) {
1628                         filter = xgifb_optval(this_opt, 7);
1629                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1630                         XGIfb_search_crt2type(this_opt + 14);
1631                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1632                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1633                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1634                         XGIfb_search_tvstd(this_opt + 7);
1635                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1636                         XGIfb_search_tvstd(this_opt + 7);
1637                 } else if (!strncmp(this_opt, "dstn", 4)) {
1638                         enable_dstn = 1;
1639                         /* DSTN overrules forcecrt2type */
1640                         XGIfb_crt2type = XGIFB_DISP_LCD;
1641                 } else if (!strncmp(this_opt, "noypan", 6)) {
1642                         XGIfb_ypan = 0;
1643                 } else {
1644                         mode = this_opt;
1645                 }
1646         }
1647         return 0;
1648 }
1649
1650 static int xgifb_probe(struct pci_dev *pdev,
1651                 const struct pci_device_id *ent)
1652 {
1653         u8 reg, reg1;
1654         u8 CR48, CR38;
1655         int ret;
1656         struct fb_info *fb_info;
1657         struct xgifb_video_info *xgifb_info;
1658         struct xgi_hw_device_info *hw_info;
1659         unsigned long video_size_max;
1660
1661         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1662         if (!fb_info)
1663                 return -ENOMEM;
1664
1665         xgifb_info = fb_info->par;
1666         hw_info = &xgifb_info->hw_info;
1667         xgifb_info->fb_info = fb_info;
1668         xgifb_info->chip_id = pdev->device;
1669         pci_read_config_byte(pdev,
1670                              PCI_REVISION_ID,
1671                              &xgifb_info->revision_id);
1672         hw_info->jChipRevision = xgifb_info->revision_id;
1673
1674         xgifb_info->pcibus = pdev->bus->number;
1675         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1676         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1677         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1678         xgifb_info->subsysdevice = pdev->subsystem_device;
1679
1680         video_size_max = pci_resource_len(pdev, 0);
1681         xgifb_info->video_base = pci_resource_start(pdev, 0);
1682         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1683         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1684         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1685         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1686                  (u64) pci_resource_start(pdev, 2),
1687                  xgifb_info->vga_base);
1688
1689         if (pci_enable_device(pdev)) {
1690                 ret = -EIO;
1691                 goto error;
1692         }
1693
1694         if (XGIfb_crt2type != -1) {
1695                 xgifb_info->display2 = XGIfb_crt2type;
1696                 xgifb_info->display2_force = true;
1697         }
1698
1699         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1700
1701         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1702         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1703
1704         if (reg1 != 0xa1) { /*I/O error */
1705                 dev_err(&pdev->dev, "I/O error\n");
1706                 ret = -EIO;
1707                 goto error_disable;
1708         }
1709
1710         switch (xgifb_info->chip_id) {
1711         case PCI_DEVICE_ID_XGI_20:
1712                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1713                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1714                 if (CR48&GPIOG_READ)
1715                         xgifb_info->chip = XG21;
1716                 else
1717                         xgifb_info->chip = XG20;
1718                 break;
1719         case PCI_DEVICE_ID_XGI_40:
1720                 xgifb_info->chip = XG40;
1721                 break;
1722         case PCI_DEVICE_ID_XGI_42:
1723                 xgifb_info->chip = XG42;
1724                 break;
1725         case PCI_DEVICE_ID_XGI_27:
1726                 xgifb_info->chip = XG27;
1727                 break;
1728         default:
1729                 ret = -ENODEV;
1730                 goto error_disable;
1731         }
1732
1733         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1734         hw_info->jChipType = xgifb_info->chip;
1735
1736         if (XGIfb_get_dram_size(xgifb_info)) {
1737                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1738                                                 SZ_16M);
1739         } else if (xgifb_info->video_size > video_size_max) {
1740                 xgifb_info->video_size = video_size_max;
1741         }
1742
1743         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1744         xgifb_reg_or(XGISR,
1745                      IND_SIS_PCI_ADDRESS_SET,
1746                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1747         /* Enable 2D accelerator engine */
1748         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1749
1750         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1751
1752         if (!request_mem_region(xgifb_info->video_base,
1753                                 xgifb_info->video_size,
1754                                 "XGIfb FB")) {
1755                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1756                        xgifb_info->video_size);
1757                 dev_err(&pdev->dev,
1758                         "Fatal error: Unable to reserve frame buffer memory. Is there another framebuffer driver active?\n");
1759                 ret = -ENODEV;
1760                 goto error_disable;
1761         }
1762
1763         if (!request_mem_region(xgifb_info->mmio_base,
1764                                 xgifb_info->mmio_size,
1765                                 "XGIfb MMIO")) {
1766                 dev_err(&pdev->dev,
1767                         "Fatal error: Unable to reserve MMIO region\n");
1768                 ret = -ENODEV;
1769                 goto error_0;
1770         }
1771
1772         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1773         ioremap(xgifb_info->video_base, xgifb_info->video_size);
1774         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1775                                             xgifb_info->mmio_size);
1776
1777         dev_info(&pdev->dev,
1778                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1779                  (u64) xgifb_info->video_base,
1780                  xgifb_info->video_vbase,
1781                  xgifb_info->video_size / 1024);
1782
1783         dev_info(&pdev->dev,
1784                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1785                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1786                  xgifb_info->mmio_size / 1024);
1787
1788         pci_set_drvdata(pdev, xgifb_info);
1789         if (!XGIInitNew(pdev))
1790                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1791
1792         xgifb_info->mtrr = -1;
1793
1794         xgifb_info->hasVB = HASVB_NONE;
1795         if ((xgifb_info->chip == XG20) ||
1796             (xgifb_info->chip == XG27)) {
1797                 xgifb_info->hasVB = HASVB_NONE;
1798         } else if (xgifb_info->chip == XG21) {
1799                 CR38 = xgifb_reg_get(XGICR, 0x38);
1800                 if ((CR38&0xE0) == 0xC0)
1801                         xgifb_info->display2 = XGIFB_DISP_LCD;
1802                 else if ((CR38&0xE0) == 0x60)
1803                         xgifb_info->hasVB = HASVB_CHRONTEL;
1804                 else
1805                         xgifb_info->hasVB = HASVB_NONE;
1806         } else {
1807                 XGIfb_get_VB_type(xgifb_info);
1808         }
1809
1810         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1811
1812         hw_info->ulExternalChip = 0;
1813
1814         switch (xgifb_info->hasVB) {
1815         case HASVB_301:
1816                 reg = xgifb_reg_get(XGIPART4, 0x01);
1817                 if (reg >= 0xE0) {
1818                         hw_info->ujVBChipID = VB_CHIP_302LV;
1819                         dev_info(&pdev->dev,
1820                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1821                                  reg);
1822                 } else if (reg >= 0xD0) {
1823                         hw_info->ujVBChipID = VB_CHIP_301LV;
1824                         dev_info(&pdev->dev,
1825                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1826                                  reg);
1827                 } else {
1828                         hw_info->ujVBChipID = VB_CHIP_301;
1829                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1830                 }
1831                 break;
1832         case HASVB_302:
1833                 reg = xgifb_reg_get(XGIPART4, 0x01);
1834                 if (reg >= 0xE0) {
1835                         hw_info->ujVBChipID = VB_CHIP_302LV;
1836                         dev_info(&pdev->dev,
1837                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1838                                  reg);
1839                 } else if (reg >= 0xD0) {
1840                         hw_info->ujVBChipID = VB_CHIP_301LV;
1841                         dev_info(&pdev->dev,
1842                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1843                                  reg);
1844                 } else if (reg >= 0xB0) {
1845                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1846
1847                         hw_info->ujVBChipID = VB_CHIP_302B;
1848
1849                 } else {
1850                         hw_info->ujVBChipID = VB_CHIP_302;
1851                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1852                 }
1853                 break;
1854         case HASVB_LVDS:
1855                 hw_info->ulExternalChip = 0x1;
1856                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1857                 break;
1858         case HASVB_TRUMPION:
1859                 hw_info->ulExternalChip = 0x2;
1860                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1861                 break;
1862         case HASVB_CHRONTEL:
1863                 hw_info->ulExternalChip = 0x4;
1864                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1865                 break;
1866         case HASVB_LVDS_CHRONTEL:
1867                 hw_info->ulExternalChip = 0x5;
1868                 dev_info(&pdev->dev,
1869                          "LVDS transmitter and Chrontel TV encoder detected\n");
1870                 break;
1871         default:
1872                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1873                 break;
1874         }
1875
1876         if (xgifb_info->hasVB != HASVB_NONE)
1877                 XGIfb_detect_VB(xgifb_info);
1878         else if (xgifb_info->chip != XG21)
1879                 xgifb_info->display2 = XGIFB_DISP_NONE;
1880
1881         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1882                 if (!enable_dstn) {
1883                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1884                         reg &= 0x0f;
1885                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1886                 }
1887         }
1888
1889         xgifb_info->mode_idx = -1;
1890
1891         if (mode)
1892                 XGIfb_search_mode(xgifb_info, mode);
1893         else if (vesa != -1)
1894                 XGIfb_search_vesamode(xgifb_info, vesa);
1895
1896         if (xgifb_info->mode_idx >= 0)
1897                 xgifb_info->mode_idx =
1898                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1899
1900         if (xgifb_info->mode_idx < 0) {
1901                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1902                     xgifb_info->chip == XG21)
1903                         xgifb_info->mode_idx =
1904                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1905                 else
1906                         xgifb_info->mode_idx = DEFAULT_MODE;
1907         }
1908
1909         if (xgifb_info->mode_idx < 0) {
1910                 dev_err(&pdev->dev, "No supported video mode found\n");
1911                 ret = -EINVAL;
1912                 goto error_1;
1913         }
1914
1915         /* set default refresh rate */
1916         xgifb_info->refresh_rate = refresh_rate;
1917         if (xgifb_info->refresh_rate == 0)
1918                 xgifb_info->refresh_rate = 60;
1919         if (XGIfb_search_refresh_rate(xgifb_info,
1920                         xgifb_info->refresh_rate) == 0) {
1921                 xgifb_info->rate_idx = 1;
1922                 xgifb_info->refresh_rate = 60;
1923         }
1924
1925         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1926         xgifb_info->video_vwidth =
1927                 xgifb_info->video_width =
1928                         XGIbios_mode[xgifb_info->mode_idx].xres;
1929         xgifb_info->video_vheight =
1930                 xgifb_info->video_height =
1931                         XGIbios_mode[xgifb_info->mode_idx].yres;
1932         xgifb_info->org_x = xgifb_info->org_y = 0;
1933         xgifb_info->video_linelength =
1934                 xgifb_info->video_width *
1935                 (xgifb_info->video_bpp >> 3);
1936         switch (xgifb_info->video_bpp) {
1937         case 8:
1938                 xgifb_info->DstColor = 0x0000;
1939                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1940                 xgifb_info->video_cmap_len = 256;
1941                 break;
1942         case 16:
1943                 xgifb_info->DstColor = 0x8000;
1944                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1945                 xgifb_info->video_cmap_len = 16;
1946                 break;
1947         case 32:
1948                 xgifb_info->DstColor = 0xC000;
1949                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1950                 xgifb_info->video_cmap_len = 16;
1951                 break;
1952         default:
1953                 xgifb_info->video_cmap_len = 16;
1954                 pr_info("Unsupported depth %d\n",
1955                        xgifb_info->video_bpp);
1956                 break;
1957         }
1958
1959         pr_info("Default mode is %dx%dx%d (%dHz)\n",
1960                xgifb_info->video_width,
1961                xgifb_info->video_height,
1962                xgifb_info->video_bpp,
1963                xgifb_info->refresh_rate);
1964
1965         fb_info->var.red.length         = 8;
1966         fb_info->var.green.length       = 8;
1967         fb_info->var.blue.length        = 8;
1968         fb_info->var.activate           = FB_ACTIVATE_NOW;
1969         fb_info->var.height             = -1;
1970         fb_info->var.width              = -1;
1971         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
1972         fb_info->var.xres               = xgifb_info->video_width;
1973         fb_info->var.xres_virtual       = xgifb_info->video_width;
1974         fb_info->var.yres               = xgifb_info->video_height;
1975         fb_info->var.yres_virtual       = xgifb_info->video_height;
1976         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
1977
1978         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1979
1980         fb_info->var.pixclock = (u32) (1000000000 /
1981                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
1982                                 hw_info,
1983                                 XGIbios_mode[xgifb_info->mode_idx].mode_no));
1984
1985         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
1986                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
1987                 &fb_info->var.left_margin,
1988                 &fb_info->var.right_margin,
1989                 &fb_info->var.upper_margin,
1990                 &fb_info->var.lower_margin,
1991                 &fb_info->var.hsync_len,
1992                 &fb_info->var.vsync_len,
1993                 &fb_info->var.sync,
1994                 &fb_info->var.vmode)) {
1995
1996                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1997                     FB_VMODE_INTERLACED) {
1998                         fb_info->var.yres <<= 1;
1999                         fb_info->var.yres_virtual <<= 1;
2000                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2001                            FB_VMODE_DOUBLE) {
2002                         fb_info->var.pixclock >>= 1;
2003                         fb_info->var.yres >>= 1;
2004                         fb_info->var.yres_virtual >>= 1;
2005                 }
2006
2007         }
2008
2009         fb_info->flags = FBINFO_FLAG_DEFAULT;
2010         fb_info->screen_base = xgifb_info->video_vbase;
2011         fb_info->fbops = &XGIfb_ops;
2012         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2013         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2014
2015         fb_alloc_cmap(&fb_info->cmap, 256, 0);
2016
2017 #ifdef CONFIG_MTRR
2018         xgifb_info->mtrr = mtrr_add(xgifb_info->video_base,
2019                 xgifb_info->video_size, MTRR_TYPE_WRCOMB, 1);
2020         if (xgifb_info->mtrr >= 0)
2021                 dev_info(&pdev->dev, "Added MTRR\n");
2022 #endif
2023
2024         if (register_framebuffer(fb_info) < 0) {
2025                 ret = -EINVAL;
2026                 goto error_mtrr;
2027         }
2028
2029         dumpVGAReg();
2030
2031         return 0;
2032
2033 error_mtrr:
2034 #ifdef CONFIG_MTRR
2035         if (xgifb_info->mtrr >= 0)
2036                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2037                         xgifb_info->video_size);
2038 #endif /* CONFIG_MTRR */
2039 error_1:
2040         iounmap(xgifb_info->mmio_vbase);
2041         iounmap(xgifb_info->video_vbase);
2042         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2043 error_0:
2044         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2045 error_disable:
2046         pci_disable_device(pdev);
2047 error:
2048         framebuffer_release(fb_info);
2049         return ret;
2050 }
2051
2052 /*****************************************************/
2053 /*                PCI DEVICE HANDLING                */
2054 /*****************************************************/
2055
2056 static void xgifb_remove(struct pci_dev *pdev)
2057 {
2058         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2059         struct fb_info *fb_info = xgifb_info->fb_info;
2060
2061         unregister_framebuffer(fb_info);
2062 #ifdef CONFIG_MTRR
2063         if (xgifb_info->mtrr >= 0)
2064                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2065                         xgifb_info->video_size);
2066 #endif /* CONFIG_MTRR */
2067         iounmap(xgifb_info->mmio_vbase);
2068         iounmap(xgifb_info->video_vbase);
2069         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2070         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2071         pci_disable_device(pdev);
2072         framebuffer_release(fb_info);
2073 }
2074
2075 static struct pci_driver xgifb_driver = {
2076         .name = "xgifb",
2077         .id_table = xgifb_pci_table,
2078         .probe = xgifb_probe,
2079         .remove = xgifb_remove
2080 };
2081
2082
2083
2084 /*****************************************************/
2085 /*                      MODULE                       */
2086 /*****************************************************/
2087
2088 module_param(mode, charp, 0);
2089 MODULE_PARM_DESC(mode,
2090         "Selects the desired default display mode in the format XxYxDepth (eg. 1024x768x16).");
2091
2092 module_param(forcecrt2type, charp, 0);
2093 MODULE_PARM_DESC(forcecrt2type,
2094         "Force the second display output type. Possible values are NONE, LCD, TV, VGA, SVIDEO or COMPOSITE.");
2095
2096 module_param(vesa, int, 0);
2097 MODULE_PARM_DESC(vesa,
2098         "Selects the desired default display mode by VESA mode number (eg. 0x117).");
2099
2100 module_param(filter, int, 0);
2101 MODULE_PARM_DESC(filter,
2102         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). Possible values 0-7. Default: [no filter]).");
2103
2104 static int __init xgifb_init(void)
2105 {
2106         char *option = NULL;
2107
2108         if (forcecrt2type != NULL)
2109                 XGIfb_search_crt2type(forcecrt2type);
2110         if (fb_get_options("xgifb", &option))
2111                 return -ENODEV;
2112         XGIfb_setup(option);
2113
2114         return pci_register_driver(&xgifb_driver);
2115 }
2116
2117 static void __exit xgifb_remove_module(void)
2118 {
2119         pci_unregister_driver(&xgifb_driver);
2120         pr_debug("Module unloaded\n");
2121 }
2122
2123 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2124 MODULE_LICENSE("GPL");
2125 MODULE_AUTHOR("XGITECH , Others");
2126 module_init(xgifb_init);
2127 module_exit(xgifb_remove_module);