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         /* Digital video interface registers (LCD) */
 222         XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
 223         /* 301 TV Encoder registers */
 224         XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
 225         /* 301 Macrovision registers */
 226         XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
 227         /* 301 VGA2 (and LCD) registers */
 228         XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
 229         /* 301 palette address port registers */
 230         XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
 231
 232 }
 233
 234 /* ------------------ Internal helper routines ----------------- */
 235
 236 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 237 {
 238         int i = 0;
 239
 240         while ((XGIbios_mode[i].mode_no != 0)
 241                && (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
 242                 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE)
 243                     && (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE)
 244                     && (XGIbios_mode[i].bpp == 8)) {
 245                         return i;
 246                 }
 247                 i++;
 248         }
 249
 250         return -1;
 251 }
 252
 253 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 254                               const char *name)
 255 {
 256         unsigned int xres;
 257         unsigned int yres;
 258         unsigned int bpp;
 259         int i;
 260
 261         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 262                 goto invalid_mode;
 263
 264         if (bpp == 24)
 265                 bpp = 32; /* That's for people who mix up color and fb depth. */
 266
 267         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 268                 if (XGIbios_mode[i].xres == xres &&
 269                     XGIbios_mode[i].yres == yres &&
 270                     XGIbios_mode[i].bpp == bpp) {
 271                         xgifb_info->mode_idx = i;
 272                         return;
 273                 }
 274 invalid_mode:
 275         pr_info("Invalid mode '%s'\n", name);
 276 }
 277
 278 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 279                                   unsigned int vesamode)
 280 {
 281         int i = 0;
 282
 283         if (vesamode == 0)
 284                 goto invalid;
 285
 286         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 287
 288         while (XGIbios_mode[i].mode_no != 0) {
 289                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 290                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 291                         xgifb_info->mode_idx = i;
 292                         return;
 293                 }
 294                 i++;
 295         }
 296
 297 invalid:
 298         pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 299 }
 300
 301 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 302 {
 303         u16 xres, yres;
 304         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 305         unsigned long required_mem;
 306
 307         if (xgifb_info->chip == XG21) {
 308                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 309                         xres = xgifb_info->lvds_data.LVDSHDE;
 310                         yres = xgifb_info->lvds_data.LVDSVDE;
 311                         if (XGIbios_mode[myindex].xres > xres)
 312                                 return -1;
 313                         if (XGIbios_mode[myindex].yres > yres)
 314                                 return -1;
 315                         if ((XGIbios_mode[myindex].xres < xres) &&
 316                             (XGIbios_mode[myindex].yres < yres)) {
 317                                 if (XGIbios_mode[myindex].bpp > 8)
 318                                         return -1;
 319                         }
 320
 321                 }
 322                 goto check_memory;
 323
 324         }
 325
 326         /* FIXME: for now, all is valid on XG27 */
 327         if (xgifb_info->chip == XG27)
 328                 goto check_memory;
 329
 330         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 331                 return -1;
 332
 333         switch (xgifb_info->display2) {
 334         case XGIFB_DISP_LCD:
 335                 switch (hw_info->ulCRT2LCDType) {
 336                 case LCD_640x480:
 337                         xres = 640;
 338                         yres = 480;
 339                         break;
 340                 case LCD_800x600:
 341                         xres = 800;
 342                         yres = 600;
 343                         break;
 344                 case LCD_1024x600:
 345                         xres = 1024;
 346                         yres = 600;
 347                         break;
 348                 case LCD_1024x768:
 349                         xres = 1024;
 350                         yres = 768;
 351                         break;
 352                 case LCD_1152x768:
 353                         xres = 1152;
 354                         yres = 768;
 355                         break;
 356                 case LCD_1280x960:
 357                         xres = 1280;
 358                         yres = 960;
 359                         break;
 360                 case LCD_1280x768:
 361                         xres = 1280;
 362                         yres = 768;
 363                         break;
 364                 case LCD_1280x1024:
 365                         xres = 1280;
 366                         yres = 1024;
 367                         break;
 368                 case LCD_1400x1050:
 369                         xres = 1400;
 370                         yres = 1050;
 371                         break;
 372                 case LCD_1600x1200:
 373                         xres = 1600;
 374                         yres = 1200;
 375                         break;
 376                 default:
 377                         xres = 0;
 378                         yres = 0;
 379                         break;
 380                 }
 381                 if (XGIbios_mode[myindex].xres > xres)
 382                         return -1;
 383                 if (XGIbios_mode[myindex].yres > yres)
 384                         return -1;
 385                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 386                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 387                         switch (XGIbios_mode[myindex].xres) {
 388                         case 512:
 389                                 if (XGIbios_mode[myindex].yres != 512)
 390                                         return -1;
 391                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 392                                         return -1;
 393                                 break;
 394                         case 640:
 395                                 if ((XGIbios_mode[myindex].yres != 400)
 396                                                 && (XGIbios_mode[myindex].yres
 397                                                                 != 480))
 398                                         return -1;
 399                                 break;
 400                         case 800:
 401                                 if (XGIbios_mode[myindex].yres != 600)
 402                                         return -1;
 403                                 break;
 404                         case 1024:
 405                                 if ((XGIbios_mode[myindex].yres != 600) &&
 406                                     (XGIbios_mode[myindex].yres != 768))
 407                                         return -1;
 408                                 if ((XGIbios_mode[myindex].yres == 600) &&
 409                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 410                                         return -1;
 411                                 break;
 412                         case 1152:
 413                                 if ((XGIbios_mode[myindex].yres) != 768)
 414                                         return -1;
 415                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 416                                         return -1;
 417                                 break;
 418                         case 1280:
 419                                 if ((XGIbios_mode[myindex].yres != 768) &&
 420                                     (XGIbios_mode[myindex].yres != 1024))
 421                                         return -1;
 422                                 if ((XGIbios_mode[myindex].yres == 768) &&
 423                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 424                                         return -1;
 425                                 break;
 426                         case 1400:
 427                                 if (XGIbios_mode[myindex].yres != 1050)
 428                                         return -1;
 429                                 break;
 430                         case 1600:
 431                                 if (XGIbios_mode[myindex].yres != 1200)
 432                                         return -1;
 433                                 break;
 434                         default:
 435                                 return -1;
 436                         }
 437                 } else {
 438                         switch (XGIbios_mode[myindex].xres) {
 439                         case 512:
 440                                 if (XGIbios_mode[myindex].yres != 512)
 441                                         return -1;
 442                                 break;
 443                         case 640:
 444                                 if ((XGIbios_mode[myindex].yres != 400) &&
 445                                     (XGIbios_mode[myindex].yres != 480))
 446                                         return -1;
 447                                 break;
 448                         case 800:
 449                                 if (XGIbios_mode[myindex].yres != 600)
 450                                         return -1;
 451                                 break;
 452                         case 1024:
 453                                 if (XGIbios_mode[myindex].yres != 768)
 454                                         return -1;
 455                                 break;
 456                         case 1280:
 457                                 if ((XGIbios_mode[myindex].yres != 960) &&
 458                                     (XGIbios_mode[myindex].yres != 1024))
 459                                         return -1;
 460                                 if (XGIbios_mode[myindex].yres == 960) {
 461                                         if (hw_info->ulCRT2LCDType ==
 462                                             LCD_1400x1050)
 463                                                 return -1;
 464                                 }
 465                                 break;
 466                         case 1400:
 467                                 if (XGIbios_mode[myindex].yres != 1050)
 468                                         return -1;
 469                                 break;
 470                         case 1600:
 471                                 if (XGIbios_mode[myindex].yres != 1200)
 472                                         return -1;
 473                                 break;
 474                         default:
 475                                 return -1;
 476                         }
 477                 }
 478                 break;
 479         case XGIFB_DISP_TV:
 480                 switch (XGIbios_mode[myindex].xres) {
 481                 case 512:
 482                 case 640:
 483                 case 800:
 484                         break;
 485                 case 720:
 486                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 487                                 if (XGIbios_mode[myindex].yres != 480)
 488                                         return -1;
 489                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 490                                 if (XGIbios_mode[myindex].yres != 576)
 491                                         return -1;
 492                         }
 493                         /* LVDS/CHRONTEL does not support 720 */
 494                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 495                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 496                                 return -1;
 497                         }
 498                         break;
 499                 case 1024:
 500                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 501                                 if (XGIbios_mode[myindex].bpp == 32)
 502                                         return -1;
 503                         }
 504                         break;
 505                 default:
 506                         return -1;
 507                 }
 508                 break;
 509         case XGIFB_DISP_CRT:
 510                 if (XGIbios_mode[myindex].xres > 1280)
 511                         return -1;
 512                 break;
 513         case XGIFB_DISP_NONE:
 514                 break;
 515         }
 516
 517 check_memory:
 518         required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
 519                        XGIbios_mode[myindex].bpp / 8;
 520         if (required_mem > xgifb_info->video_size)
 521                 return -1;
 522         return myindex;
 523
 524 }
 525
 526 static void XGIfb_search_crt2type(const char *name)
 527 {
 528         int i = 0;
 529
 530         if (name == NULL)
 531                 return;
 532
 533         while (XGI_crt2type[i].type_no != -1) {
 534                 if (!strcmp(name, XGI_crt2type[i].name)) {
 535                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 536                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 537                         break;
 538                 }
 539                 i++;
 540         }
 541         if (XGIfb_crt2type < 0)
 542                 pr_info("Invalid CRT2 type: %s\n", name);
 543 }
 544
 545 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 546                                     unsigned int rate)
 547 {
 548         u16 xres, yres;
 549         int i = 0;
 550
 551         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 552         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 553
 554         xgifb_info->rate_idx = 0;
 555         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 556                 if ((XGIfb_vrate[i].xres == xres) &&
 557                     (XGIfb_vrate[i].yres == yres)) {
 558                         if (XGIfb_vrate[i].refresh == rate) {
 559                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 560                                 break;
 561                         } else if (XGIfb_vrate[i].refresh > rate) {
 562                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 563                                         pr_debug("Adjusting rate from %d up to %d\n",
 564                                                  rate, XGIfb_vrate[i].refresh);
 565                                         xgifb_info->rate_idx =
 566                                                 XGIfb_vrate[i].idx;
 567                                         xgifb_info->refresh_rate =
 568                                                 XGIfb_vrate[i].refresh;
 569                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 570                                                 <= 2) && (XGIfb_vrate[i].idx
 571                                                 != 1)) {
 572                                         pr_debug("Adjusting rate from %d down to %d\n",
 573                                                  rate,
 574                                                  XGIfb_vrate[i-1].refresh);
 575                                         xgifb_info->rate_idx =
 576                                                 XGIfb_vrate[i - 1].idx;
 577                                         xgifb_info->refresh_rate =
 578                                                 XGIfb_vrate[i - 1].refresh;
 579                                 }
 580                                 break;
 581                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 582                                 pr_debug("Adjusting rate from %d down to %d\n",
 583                                          rate, XGIfb_vrate[i].refresh);
 584                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 585                                 break;
 586                         }
 587                 }
 588                 i++;
 589         }
 590         if (xgifb_info->rate_idx > 0) {
 591                 return xgifb_info->rate_idx;
 592         } else {
 593                 pr_info("Unsupported rate %d for %dx%d\n",
 594                        rate, xres, yres);
 595                 return 0;
 596         }
 597 }
 598
 599 static void XGIfb_search_tvstd(const char *name)
 600 {
 601         int i = 0;
 602
 603         if (name == NULL)
 604                 return;
 605
 606         while (XGI_tvtype[i].type_no != -1) {
 607                 if (!strcmp(name, XGI_tvtype[i].name)) {
 608                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 609                         break;
 610                 }
 611                 i++;
 612         }
 613 }
 614
 615 /* ----------- FBDev related routines for all series ----------- */
 616
 617 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 618                              struct fb_var_screeninfo *var)
 619 {
 620         switch (var->bits_per_pixel) {
 621         case 8:
 622                 var->red.offset = var->green.offset = var->blue.offset = 0;
 623                 var->red.length = var->green.length = var->blue.length = 6;
 624                 xgifb_info->video_cmap_len = 256;
 625                 break;
 626         case 16:
 627                 var->red.offset = 11;
 628                 var->red.length = 5;
 629                 var->green.offset = 5;
 630                 var->green.length = 6;
 631                 var->blue.offset = 0;
 632                 var->blue.length = 5;
 633                 var->transp.offset = 0;
 634                 var->transp.length = 0;
 635                 xgifb_info->video_cmap_len = 16;
 636                 break;
 637         case 32:
 638                 var->red.offset = 16;
 639                 var->red.length = 8;
 640                 var->green.offset = 8;
 641                 var->green.length = 8;
 642                 var->blue.offset = 0;
 643                 var->blue.length = 8;
 644                 var->transp.offset = 24;
 645                 var->transp.length = 8;
 646                 xgifb_info->video_cmap_len = 16;
 647                 break;
 648         }
 649 }
 650
 651 /* --------------------- SetMode routines ------------------------- */
 652
 653 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 654 {
 655         u8 cr30 = 0, cr31 = 0;
 656
 657         cr31 = xgifb_reg_get(XGICR, 0x31);
 658         cr31 &= ~0x60;
 659
 660         switch (xgifb_info->display2) {
 661         case XGIFB_DISP_CRT:
 662                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 663                 cr31 |= SIS_DRIVER_MODE;
 664                 break;
 665         case XGIFB_DISP_LCD:
 666                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 667                 cr31 |= SIS_DRIVER_MODE;
 668                 break;
 669         case XGIFB_DISP_TV:
 670                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 671                         cr30 = (SIS_VB_OUTPUT_HIVISION
 672                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 673                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 674                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 675                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 676                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 677                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 678                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 679                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 680                         cr30 = (SIS_VB_OUTPUT_SCART
 681                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 682                 cr31 |= SIS_DRIVER_MODE;
 683
 684                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 685                         cr31 |= 0x01;
 686                 else
 687                         cr31 &= ~0x01;
 688                 break;
 689         default: /* disable CRT2 */
 690                 cr30 = 0x00;
 691                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 692         }
 693
 694         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 695         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 696         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 697                                                 (xgifb_info->rate_idx & 0x0F));
 698 }
 699
 700 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 701 {
 702         u8 reg;
 703         unsigned char doit = 1;
 704
 705         if (xgifb_info->video_bpp == 8) {
 706                 /*
 707                  * We can't switch off CRT1 on LVDS/Chrontel
 708                  * in 8bpp Modes
 709                  */
 710                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 711                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 712                         doit = 0;
 713                 }
 714                 /*
 715                  * We can't switch off CRT1 on 301B-DH
 716                  * in 8bpp Modes if using LCD
 717                  */
 718                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 719                         doit = 0;
 720         }
 721
 722         /* We can't switch off CRT1 if bridge is in slave mode */
 723         if (xgifb_info->hasVB != HASVB_NONE) {
 724                 reg = xgifb_reg_get(XGIPART1, 0x00);
 725
 726                 if ((reg & 0x50) == 0x10)
 727                         doit = 0;
 728
 729         } else {
 730                 XGIfb_crt1off = 0;
 731         }
 732
 733         reg = xgifb_reg_get(XGICR, 0x17);
 734         if ((XGIfb_crt1off) && (doit))
 735                 reg &= ~0x80;
 736         else
 737                 reg |= 0x80;
 738         xgifb_reg_set(XGICR, 0x17, reg);
 739
 740         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 741
 742         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 743             xgifb_info->hasVB == HASVB_301) {
 744
 745                 reg = xgifb_reg_get(XGIPART4, 0x01);
 746
 747                 if (reg < 0xB0) { /* Set filter for XGI301 */
 748                         int filter_tb;
 749
 750                         switch (xgifb_info->video_width) {
 751                         case 320:
 752                                 filter_tb = (xgifb_info->TV_type ==
 753                                              TVMODE_NTSC) ? 4 : 12;
 754                                 break;
 755                         case 640:
 756                                 filter_tb = (xgifb_info->TV_type ==
 757                                              TVMODE_NTSC) ? 5 : 13;
 758                                 break;
 759                         case 720:
 760                                 filter_tb = (xgifb_info->TV_type ==
 761                                              TVMODE_NTSC) ? 6 : 14;
 762                                 break;
 763                         case 800:
 764                                 filter_tb = (xgifb_info->TV_type ==
 765                                              TVMODE_NTSC) ? 7 : 15;
 766                                 break;
 767                         default:
 768                                 filter_tb = 0;
 769                                 filter = -1;
 770                                 break;
 771                         }
 772                         xgifb_reg_or(XGIPART1,
 773                                      SIS_CRT2_WENABLE_315,
 774                                      0x01);
 775
 776                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 777
 778                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 779
 780                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 781
 782                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 783
 784                                 } else if (xgifb_info->TV_plug
 785                                                 == TVPLUG_COMPOSITE) {
 786
 787                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 788
 789                                         switch (xgifb_info->video_width) {
 790                                         case 640:
 791                                                 xgifb_reg_set(XGIPART2,
 792                                                               0x35,
 793                                                               0xEB);
 794                                                 xgifb_reg_set(XGIPART2,
 795                                                               0x36,
 796                                                               0x04);
 797                                                 xgifb_reg_set(XGIPART2,
 798                                                               0x37,
 799                                                               0x25);
 800                                                 xgifb_reg_set(XGIPART2,
 801                                                               0x38,
 802                                                               0x18);
 803                                                 break;
 804                                         case 720:
 805                                                 xgifb_reg_set(XGIPART2,
 806                                                               0x35,
 807                                                               0xEE);
 808                                                 xgifb_reg_set(XGIPART2,
 809                                                               0x36,
 810                                                               0x0C);
 811                                                 xgifb_reg_set(XGIPART2,
 812                                                               0x37,
 813                                                               0x22);
 814                                                 xgifb_reg_set(XGIPART2,
 815                                                               0x38,
 816                                                               0x08);
 817                                                 break;
 818                                         case 800:
 819                                                 xgifb_reg_set(XGIPART2,
 820                                                               0x35,
 821                                                               0xEB);
 822                                                 xgifb_reg_set(XGIPART2,
 823                                                               0x36,
 824                                                               0x15);
 825                                                 xgifb_reg_set(XGIPART2,
 826                                                               0x37,
 827                                                               0x25);
 828                                                 xgifb_reg_set(XGIPART2,
 829                                                               0x38,
 830                                                               0xF6);
 831                                                 break;
 832                                         }
 833                                 }
 834
 835                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 836
 837                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 838
 839                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 840
 841                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 842
 843                                 } else if (xgifb_info->TV_plug
 844                                                 == TVPLUG_COMPOSITE) {
 845
 846                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 847
 848                                         switch (xgifb_info->video_width) {
 849                                         case 640:
 850                                                 xgifb_reg_set(XGIPART2,
 851                                                               0x35,
 852                                                               0xF1);
 853                                                 xgifb_reg_set(XGIPART2,
 854                                                               0x36,
 855                                                               0xF7);
 856                                                 xgifb_reg_set(XGIPART2,
 857                                                               0x37,
 858                                                               0x1F);
 859                                                 xgifb_reg_set(XGIPART2,
 860                                                               0x38,
 861                                                               0x32);
 862                                                 break;
 863                                         case 720:
 864                                                 xgifb_reg_set(XGIPART2,
 865                                                               0x35,
 866                                                               0xF3);
 867                                                 xgifb_reg_set(XGIPART2,
 868                                                               0x36,
 869                                                               0x00);
 870                                                 xgifb_reg_set(XGIPART2,
 871                                                               0x37,
 872                                                               0x1D);
 873                                                 xgifb_reg_set(XGIPART2,
 874                                                               0x38,
 875                                                               0x20);
 876                                                 break;
 877                                         case 800:
 878                                                 xgifb_reg_set(XGIPART2,
 879                                                               0x35,
 880                                                               0xFC);
 881                                                 xgifb_reg_set(XGIPART2,
 882                                                               0x36,
 883                                                               0xFB);
 884                                                 xgifb_reg_set(XGIPART2,
 885                                                               0x37,
 886                                                               0x14);
 887                                                 xgifb_reg_set(XGIPART2,
 888                                                               0x38,
 889                                                               0x2A);
 890                                                 break;
 891                                         }
 892                                 }
 893                         }
 894
 895                         if ((filter >= 0) && (filter <= 7)) {
 896                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 897                                          filter_tb, filter,
 898                                          4, XGI_TV_filter[filter_tb].
 899                                                    filter[filter]);
 900                                 xgifb_reg_set(
 901                                         XGIPART2,
 902                                         0x35,
 903                                         (XGI_TV_filter[filter_tb].
 904                                                 filter[filter][0]));
 905                                 xgifb_reg_set(
 906                                         XGIPART2,
 907                                         0x36,
 908                                         (XGI_TV_filter[filter_tb].
 909                                                 filter[filter][1]));
 910                                 xgifb_reg_set(
 911                                         XGIPART2,
 912                                         0x37,
 913                                         (XGI_TV_filter[filter_tb].
 914                                                 filter[filter][2]));
 915                                 xgifb_reg_set(
 916                                         XGIPART2,
 917                                         0x38,
 918                                         (XGI_TV_filter[filter_tb].
 919                                                 filter[filter][3]));
 920                         }
 921                 }
 922         }
 923 }
 924
 925 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 926                 struct fb_info *info)
 927 {
 928         struct xgifb_video_info *xgifb_info = info->par;
 929         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 930         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 931                         + var->hsync_len;
 932         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 933                         + var->vsync_len;
 934 #if defined(__powerpc__)
 935         u8 cr_data;
 936 #endif
 937         unsigned int drate = 0, hrate = 0;
 938         int found_mode = 0;
 939         int old_mode;
 940
 941         info->var.xres_virtual = var->xres_virtual;
 942         info->var.yres_virtual = var->yres_virtual;
 943         info->var.bits_per_pixel = var->bits_per_pixel;
 944
 945         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 946                 vtotal <<= 1;
 947         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 948                 vtotal <<= 2;
 949
 950         if (!htotal || !vtotal) {
 951                 pr_debug("Invalid 'var' information\n");
 952                 return -EINVAL;
 953         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 954                         var->pixclock, htotal, vtotal);
 955
 956         if (var->pixclock && htotal && vtotal) {
 957                 drate = 1000000000 / var->pixclock;
 958                 hrate = (drate * 1000) / htotal;
 959                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 960                                 / vtotal);
 961         } else {
 962                 xgifb_info->refresh_rate = 60;
 963         }
 964
 965         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 966                var->xres,
 967                var->yres,
 968                var->bits_per_pixel,
 969                xgifb_info->refresh_rate);
 970
 971         old_mode = xgifb_info->mode_idx;
 972         xgifb_info->mode_idx = 0;
 973
 974         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
 975                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
 976                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
 977                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
 978                     (XGIbios_mode[xgifb_info->mode_idx].bpp
 979                                                 == var->bits_per_pixel)) {
 980                         found_mode = 1;
 981                         break;
 982                 }
 983                 xgifb_info->mode_idx++;
 984         }
 985
 986         if (found_mode)
 987                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
 988                                                         xgifb_info->mode_idx);
 989         else
 990                 xgifb_info->mode_idx = -1;
 991
 992         if (xgifb_info->mode_idx < 0) {
 993                 pr_err("Mode %dx%dx%d not supported\n",
 994                        var->xres, var->yres, var->bits_per_pixel);
 995                 xgifb_info->mode_idx = old_mode;
 996                 return -EINVAL;
 997         }
 998
 999         if (XGIfb_search_refresh_rate(xgifb_info,
1000                                       xgifb_info->refresh_rate) == 0) {
1001                 xgifb_info->rate_idx = 1;
1002                 xgifb_info->refresh_rate = 60;
1003         }
1004
1005         if (isactive) {
1006
1007                 XGIfb_pre_setmode(xgifb_info);
1008                 if (XGISetModeNew(xgifb_info, hw_info,
1009                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1010                                         == 0) {
1011                         pr_err("Setting mode[0x%x] failed\n",
1012                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1013                         return -EINVAL;
1014                 }
1015                 info->fix.line_length = ((info->var.xres_virtual
1016                                 * info->var.bits_per_pixel) >> 6);
1017
1018                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1019
1020                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1021                 xgifb_reg_set(XGISR,
1022                               0x0E,
1023                               (info->fix.line_length & 0xff00) >> 8);
1024
1025                 XGIfb_post_setmode(xgifb_info);
1026
1027                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1028                          XGIbios_mode[xgifb_info->mode_idx].xres,
1029                          XGIbios_mode[xgifb_info->mode_idx].yres,
1030                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1031                          xgifb_info->refresh_rate);
1032
1033                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1034                 xgifb_info->video_vwidth = info->var.xres_virtual;
1035                 xgifb_info->video_width =
1036                         XGIbios_mode[xgifb_info->mode_idx].xres;
1037                 xgifb_info->video_vheight = info->var.yres_virtual;
1038                 xgifb_info->video_height =
1039                         XGIbios_mode[xgifb_info->mode_idx].yres;
1040                 xgifb_info->org_x = xgifb_info->org_y = 0;
1041                 xgifb_info->video_linelength = info->var.xres_virtual
1042                                 * (xgifb_info->video_bpp >> 3);
1043                 switch (xgifb_info->video_bpp) {
1044                 case 8:
1045                         xgifb_info->DstColor = 0x0000;
1046                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1047                         xgifb_info->video_cmap_len = 256;
1048 #if defined(__powerpc__)
1049                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1050                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1051 #endif
1052                         break;
1053                 case 16:
1054                         xgifb_info->DstColor = 0x8000;
1055                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1056 #if defined(__powerpc__)
1057                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1058                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1059 #endif
1060                         xgifb_info->video_cmap_len = 16;
1061                         break;
1062                 case 32:
1063                         xgifb_info->DstColor = 0xC000;
1064                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1065                         xgifb_info->video_cmap_len = 16;
1066 #if defined(__powerpc__)
1067                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1068                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1069 #endif
1070                         break;
1071                 default:
1072                         xgifb_info->video_cmap_len = 16;
1073                         pr_err("Unsupported depth %d\n",
1074                                xgifb_info->video_bpp);
1075                         break;
1076                 }
1077         }
1078         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1079
1080         dumpVGAReg();
1081         return 0;
1082 }
1083
1084 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1085 {
1086         struct xgifb_video_info *xgifb_info = info->par;
1087         unsigned int base;
1088
1089         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1090
1091         /* calculate base bpp dep. */
1092         switch (info->var.bits_per_pixel) {
1093         case 16:
1094                 base >>= 1;
1095                 break;
1096         case 32:
1097                 break;
1098         case 8:
1099         default:
1100                 base >>= 2;
1101                 break;
1102         }
1103
1104         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1105
1106         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1107         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1108         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1109         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1110         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1111
1112         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1113                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1114                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1115                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1116                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1117                 xgifb_reg_and_or(XGIPART1,
1118                                  0x02,
1119                                  0x7F,
1120                                  ((base >> 24) & 0x01) << 7);
1121         }
1122         return 0;
1123 }
1124
1125 static int XGIfb_open(struct fb_info *info, int user)
1126 {
1127         return 0;
1128 }
1129
1130 static int XGIfb_release(struct fb_info *info, int user)
1131 {
1132         return 0;
1133 }
1134
1135 /* similar to sisfb_get_cmap_len */
1136 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1137 {
1138         return (var->bits_per_pixel == 8) ? 256 : 16;
1139 }
1140
1141 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1142                 unsigned blue, unsigned transp, struct fb_info *info)
1143 {
1144         struct xgifb_video_info *xgifb_info = info->par;
1145
1146         if (regno >= XGIfb_get_cmap_len(&info->var))
1147                 return 1;
1148
1149         switch (info->var.bits_per_pixel) {
1150         case 8:
1151                 outb(regno, XGIDACA);
1152                 outb((red >> 10), XGIDACD);
1153                 outb((green >> 10), XGIDACD);
1154                 outb((blue >> 10), XGIDACD);
1155                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1156                         outb(regno, XGIDAC2A);
1157                         outb((red >> 8), XGIDAC2D);
1158                         outb((green >> 8), XGIDAC2D);
1159                         outb((blue >> 8), XGIDAC2D);
1160                 }
1161                 break;
1162         case 16:
1163                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1164                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1165                                 >> 11);
1166                 break;
1167         case 32:
1168                 red >>= 8;
1169                 green >>= 8;
1170                 blue >>= 8;
1171                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1172                                 << 8) | (blue);
1173                 break;
1174         }
1175         return 0;
1176 }
1177
1178 /* ----------- FBDev related routines for all series ---------- */
1179
1180 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1181                 struct fb_info *info)
1182 {
1183         struct xgifb_video_info *xgifb_info = info->par;
1184
1185         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1186
1187         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1188
1189         /* if register_framebuffer has been called, we must lock */
1190         if (atomic_read(&info->count))
1191                 mutex_lock(&info->mm_lock);
1192
1193         fix->smem_start = xgifb_info->video_base;
1194         fix->smem_len = xgifb_info->video_size;
1195
1196         /* if register_framebuffer has been called, we can unlock */
1197         if (atomic_read(&info->count))
1198                 mutex_unlock(&info->mm_lock);
1199
1200         fix->type = FB_TYPE_PACKED_PIXELS;
1201         fix->type_aux = 0;
1202         if (xgifb_info->video_bpp == 8)
1203                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1204         else
1205                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1206         fix->xpanstep = 0;
1207         if (XGIfb_ypan)
1208                 fix->ypanstep = 1;
1209         fix->ywrapstep = 0;
1210         fix->line_length = xgifb_info->video_linelength;
1211         fix->mmio_start = xgifb_info->mmio_base;
1212         fix->mmio_len = xgifb_info->mmio_size;
1213         fix->accel = FB_ACCEL_SIS_XABRE;
1214
1215         return 0;
1216 }
1217
1218 static int XGIfb_set_par(struct fb_info *info)
1219 {
1220         int err;
1221
1222         err = XGIfb_do_set_var(&info->var, 1, info);
1223         if (err)
1224                 return err;
1225         XGIfb_get_fix(&info->fix, -1, info);
1226         return 0;
1227 }
1228
1229 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1230 {
1231         struct xgifb_video_info *xgifb_info = info->par;
1232         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1233                         + var->hsync_len;
1234         unsigned int vtotal = 0;
1235         unsigned int drate = 0, hrate = 0;
1236         int found_mode = 0;
1237         int refresh_rate, search_idx;
1238
1239         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1240                 vtotal = var->upper_margin + var->yres + var->lower_margin
1241                                 + var->vsync_len;
1242                 vtotal <<= 1;
1243         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1244                 vtotal = var->upper_margin + var->yres + var->lower_margin
1245                                 + var->vsync_len;
1246                 vtotal <<= 2;
1247         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1248                 vtotal = var->upper_margin + (var->yres / 2)
1249                                 + var->lower_margin + var->vsync_len;
1250         } else
1251                 vtotal = var->upper_margin + var->yres + var->lower_margin
1252                                 + var->vsync_len;
1253
1254         if (!(htotal) || !(vtotal)) {
1255                 pr_debug("No valid timing data\n");
1256                 return -EINVAL;
1257         }
1258
1259         if (var->pixclock && htotal && vtotal) {
1260                 drate = 1000000000 / var->pixclock;
1261                 hrate = (drate * 1000) / htotal;
1262                 xgifb_info->refresh_rate =
1263                         (unsigned int) (hrate * 2 / vtotal);
1264                 pr_debug(
1265                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1266                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1267                         __func__, var->pixclock, htotal, vtotal,
1268                         __func__, drate, hrate, xgifb_info->refresh_rate);
1269         } else {
1270                 xgifb_info->refresh_rate = 60;
1271         }
1272
1273         /* Calculation wrong for 1024x600 - force it to 60Hz */
1274         if ((var->xres == 1024) && (var->yres == 600))
1275                 refresh_rate = 60;
1276
1277         search_idx = 0;
1278         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1279                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1280                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1281                         (XGIbios_mode[search_idx].yres == var->yres) &&
1282                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1283                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1284                                 found_mode = 1;
1285                                 break;
1286                         }
1287                 }
1288                 search_idx++;
1289         }
1290
1291         if (!found_mode) {
1292
1293                 pr_err("%dx%dx%d is no valid mode\n",
1294                         var->xres, var->yres, var->bits_per_pixel);
1295                 search_idx = 0;
1296                 while (XGIbios_mode[search_idx].mode_no != 0) {
1297                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1298                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1299                             (var->bits_per_pixel ==
1300                              XGIbios_mode[search_idx].bpp)) {
1301                                 if (XGIfb_validate_mode(xgifb_info,
1302                                                         search_idx) > 0) {
1303                                         found_mode = 1;
1304                                         break;
1305                                 }
1306                         }
1307                         search_idx++;
1308                 }
1309                 if (found_mode) {
1310                         var->xres = XGIbios_mode[search_idx].xres;
1311                         var->yres = XGIbios_mode[search_idx].yres;
1312                         pr_debug("Adapted to mode %dx%dx%d\n",
1313                                 var->xres, var->yres, var->bits_per_pixel);
1314
1315                 } else {
1316                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1317                                 var->xres, var->yres, var->bits_per_pixel);
1318                         return -EINVAL;
1319                 }
1320         }
1321
1322         /* Adapt RGB settings */
1323         XGIfb_bpp_to_var(xgifb_info, var);
1324
1325         if (!XGIfb_ypan) {
1326                 if (var->xres != var->xres_virtual)
1327                         var->xres_virtual = var->xres;
1328                 if (var->yres != var->yres_virtual)
1329                         var->yres_virtual = var->yres;
1330         }
1331
1332         /* Truncate offsets to maximum if too high */
1333         if (var->xoffset > var->xres_virtual - var->xres)
1334                 var->xoffset = var->xres_virtual - var->xres - 1;
1335
1336         if (var->yoffset > var->yres_virtual - var->yres)
1337                 var->yoffset = var->yres_virtual - var->yres - 1;
1338
1339         /* Set everything else to 0 */
1340         var->red.msb_right =
1341         var->green.msb_right =
1342         var->blue.msb_right =
1343         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1344
1345         return 0;
1346 }
1347
1348 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1349                 struct fb_info *info)
1350 {
1351         int err;
1352
1353         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1354                 return -EINVAL;
1355         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1356                 return -EINVAL;
1357
1358         if (var->vmode & FB_VMODE_YWRAP) {
1359                 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1360                         return -EINVAL;
1361         } else if (var->xoffset + info->var.xres > info->var.xres_virtual
1362                                 || var->yoffset + info->var.yres
1363                                                 > info->var.yres_virtual) {
1364                 return -EINVAL;
1365         }
1366         err = XGIfb_pan_var(var, info);
1367         if (err < 0)
1368                 return err;
1369
1370         info->var.xoffset = var->xoffset;
1371         info->var.yoffset = var->yoffset;
1372         if (var->vmode & FB_VMODE_YWRAP)
1373                 info->var.vmode |= FB_VMODE_YWRAP;
1374         else
1375                 info->var.vmode &= ~FB_VMODE_YWRAP;
1376
1377         return 0;
1378 }
1379
1380 static int XGIfb_blank(int blank, struct fb_info *info)
1381 {
1382         struct xgifb_video_info *xgifb_info = info->par;
1383         u8 reg;
1384
1385         reg = xgifb_reg_get(XGICR, 0x17);
1386
1387         if (blank > 0)
1388                 reg &= 0x7f;
1389         else
1390                 reg |= 0x80;
1391
1392         xgifb_reg_set(XGICR, 0x17, reg);
1393         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1394         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1395         return 0;
1396 }
1397
1398 static struct fb_ops XGIfb_ops = {
1399         .owner = THIS_MODULE,
1400         .fb_open = XGIfb_open,
1401         .fb_release = XGIfb_release,
1402         .fb_check_var = XGIfb_check_var,
1403         .fb_set_par = XGIfb_set_par,
1404         .fb_setcolreg = XGIfb_setcolreg,
1405         .fb_pan_display = XGIfb_pan_display,
1406         .fb_blank = XGIfb_blank,
1407         .fb_fillrect = cfb_fillrect,
1408         .fb_copyarea = cfb_copyarea,
1409         .fb_imageblit = cfb_imageblit,
1410 };
1411
1412 /* ---------------- Chip generation dependent routines ---------------- */
1413
1414 /* for XGI 315/550/650/740/330 */
1415
1416 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1417 {
1418
1419         u8 ChannelNum, tmp;
1420         u8 reg = 0;
1421
1422         /* xorg driver sets 32MB * 1 channel */
1423         if (xgifb_info->chip == XG27)
1424                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1425
1426         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1427         if (!reg)
1428                 return -1;
1429
1430         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1431         case XGI_DRAM_SIZE_1MB:
1432                 xgifb_info->video_size = 0x100000;
1433                 break;
1434         case XGI_DRAM_SIZE_2MB:
1435                 xgifb_info->video_size = 0x200000;
1436                 break;
1437         case XGI_DRAM_SIZE_4MB:
1438                 xgifb_info->video_size = 0x400000;
1439                 break;
1440         case XGI_DRAM_SIZE_8MB:
1441                 xgifb_info->video_size = 0x800000;
1442                 break;
1443         case XGI_DRAM_SIZE_16MB:
1444                 xgifb_info->video_size = 0x1000000;
1445                 break;
1446         case XGI_DRAM_SIZE_32MB:
1447                 xgifb_info->video_size = 0x2000000;
1448                 break;
1449         case XGI_DRAM_SIZE_64MB:
1450                 xgifb_info->video_size = 0x4000000;
1451                 break;
1452         case XGI_DRAM_SIZE_128MB:
1453                 xgifb_info->video_size = 0x8000000;
1454                 break;
1455         case XGI_DRAM_SIZE_256MB:
1456                 xgifb_info->video_size = 0x10000000;
1457                 break;
1458         default:
1459                 return -1;
1460         }
1461
1462         tmp = (reg & 0x0c) >> 2;
1463         switch (xgifb_info->chip) {
1464         case XG20:
1465         case XG21:
1466         case XG27:
1467                 ChannelNum = 1;
1468                 break;
1469
1470         case XG42:
1471                 if (reg & 0x04)
1472                         ChannelNum = 2;
1473                 else
1474                         ChannelNum = 1;
1475                 break;
1476
1477         case XG40:
1478         default:
1479                 if (tmp == 2)
1480                         ChannelNum = 2;
1481                 else if (tmp == 3)
1482                         ChannelNum = 3;
1483                 else
1484                         ChannelNum = 1;
1485                 break;
1486         }
1487
1488         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1489
1490         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1491                reg,
1492                xgifb_info->video_size, ChannelNum);
1493         return 0;
1494
1495 }
1496
1497 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1498 {
1499         u8 cr32, temp = 0;
1500
1501         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1502
1503         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1504
1505         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1506                 XGIfb_crt1off = 0;
1507         else {
1508                 if (cr32 & 0x5F)
1509                         XGIfb_crt1off = 1;
1510                 else
1511                         XGIfb_crt1off = 0;
1512         }
1513
1514         if (!xgifb_info->display2_force) {
1515                 if (cr32 & SIS_VB_TV)
1516                         xgifb_info->display2 = XGIFB_DISP_TV;
1517                 else if (cr32 & SIS_VB_LCD)
1518                         xgifb_info->display2 = XGIFB_DISP_LCD;
1519                 else if (cr32 & SIS_VB_CRT2)
1520                         xgifb_info->display2 = XGIFB_DISP_CRT;
1521                 else
1522                         xgifb_info->display2 = XGIFB_DISP_NONE;
1523         }
1524
1525         if (XGIfb_tvplug != -1)
1526                 /* Override with option */
1527                 xgifb_info->TV_plug = XGIfb_tvplug;
1528         else if (cr32 & SIS_VB_HIVISION) {
1529                 xgifb_info->TV_type = TVMODE_HIVISION;
1530                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1531         } else if (cr32 & SIS_VB_SVIDEO)
1532                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1533         else if (cr32 & SIS_VB_COMPOSITE)
1534                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1535         else if (cr32 & SIS_VB_SCART)
1536                 xgifb_info->TV_plug = TVPLUG_SCART;
1537
1538         if (xgifb_info->TV_type == 0) {
1539                 temp = xgifb_reg_get(XGICR, 0x38);
1540                 if (temp & 0x10)
1541                         xgifb_info->TV_type = TVMODE_PAL;
1542                 else
1543                         xgifb_info->TV_type = TVMODE_NTSC;
1544         }
1545
1546         /* Copy forceCRT1 option to CRT1off if option is given */
1547         if (XGIfb_forcecrt1 != -1) {
1548                 if (XGIfb_forcecrt1)
1549                         XGIfb_crt1off = 0;
1550                 else
1551                         XGIfb_crt1off = 1;
1552         }
1553 }
1554
1555 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1556 {
1557         u8 vb_chipid;
1558
1559         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1560         switch (vb_chipid) {
1561         case 0x01:
1562                 xgifb_info->hasVB = HASVB_301;
1563                 break;
1564         case 0x02:
1565                 xgifb_info->hasVB = HASVB_302;
1566                 break;
1567         default:
1568                 xgifb_info->hasVB = HASVB_NONE;
1569                 return 0;
1570         }
1571         return 1;
1572 }
1573
1574 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1575 {
1576         u8 reg;
1577
1578         if (!XGIfb_has_VB(xgifb_info)) {
1579                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1580                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1581                 case SIS_EXTERNAL_CHIP_LVDS:
1582                         xgifb_info->hasVB = HASVB_LVDS;
1583                         break;
1584                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1585                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1586                         break;
1587                 default:
1588                         break;
1589                 }
1590         }
1591 }
1592
1593 static int __init xgifb_optval(char *fullopt, int validx)
1594 {
1595         unsigned long lres;
1596
1597         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1598                 pr_err("Invalid value for option: %s\n", fullopt);
1599                 return 0;
1600         }
1601         return lres;
1602 }
1603
1604 static int __init XGIfb_setup(char *options)
1605 {
1606         char *this_opt;
1607
1608         if (!options || !*options)
1609                 return 0;
1610
1611         pr_info("Options: %s\n", options);
1612
1613         while ((this_opt = strsep(&options, ",")) != NULL) {
1614
1615                 if (!*this_opt)
1616                         continue;
1617
1618                 if (!strncmp(this_opt, "mode:", 5)) {
1619                         mode = this_opt + 5;
1620                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1621                         vesa = xgifb_optval(this_opt, 5);
1622                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1623                         refresh_rate = xgifb_optval(this_opt, 6);
1624                 } else if (!strncmp(this_opt, "rate:", 5)) {
1625                         refresh_rate = xgifb_optval(this_opt, 5);
1626                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1627                         XGIfb_crt1off = 1;
1628                 } else if (!strncmp(this_opt, "filter:", 7)) {
1629                         filter = xgifb_optval(this_opt, 7);
1630                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1631                         XGIfb_search_crt2type(this_opt + 14);
1632                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1633                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1634                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1635                         XGIfb_search_tvstd(this_opt + 7);
1636                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1637                         XGIfb_search_tvstd(this_opt + 7);
1638                 } else if (!strncmp(this_opt, "dstn", 4)) {
1639                         enable_dstn = 1;
1640                         /* DSTN overrules forcecrt2type */
1641                         XGIfb_crt2type = XGIFB_DISP_LCD;
1642                 } else if (!strncmp(this_opt, "noypan", 6)) {
1643                         XGIfb_ypan = 0;
1644                 } else {
1645                         mode = this_opt;
1646                 }
1647         }
1648         return 0;
1649 }
1650
1651 static int xgifb_probe(struct pci_dev *pdev,
1652                 const struct pci_device_id *ent)
1653 {
1654         u8 reg, reg1;
1655         u8 CR48, CR38;
1656         int ret;
1657         struct fb_info *fb_info;
1658         struct xgifb_video_info *xgifb_info;
1659         struct xgi_hw_device_info *hw_info;
1660         unsigned long video_size_max;
1661
1662         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1663         if (!fb_info)
1664                 return -ENOMEM;
1665
1666         xgifb_info = fb_info->par;
1667         hw_info = &xgifb_info->hw_info;
1668         xgifb_info->fb_info = fb_info;
1669         xgifb_info->chip_id = pdev->device;
1670         pci_read_config_byte(pdev,
1671                              PCI_REVISION_ID,
1672                              &xgifb_info->revision_id);
1673         hw_info->jChipRevision = xgifb_info->revision_id;
1674
1675         xgifb_info->pcibus = pdev->bus->number;
1676         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1677         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1678         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1679         xgifb_info->subsysdevice = pdev->subsystem_device;
1680
1681         video_size_max = pci_resource_len(pdev, 0);
1682         xgifb_info->video_base = pci_resource_start(pdev, 0);
1683         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1684         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1685         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1686         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1687                  (u64) pci_resource_start(pdev, 2),
1688                  xgifb_info->vga_base);
1689
1690         if (pci_enable_device(pdev)) {
1691                 ret = -EIO;
1692                 goto error;
1693         }
1694
1695         if (XGIfb_crt2type != -1) {
1696                 xgifb_info->display2 = XGIfb_crt2type;
1697                 xgifb_info->display2_force = true;
1698         }
1699
1700         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1701
1702         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1703         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1704
1705         if (reg1 != 0xa1) { /*I/O error */
1706                 dev_err(&pdev->dev, "I/O error\n");
1707                 ret = -EIO;
1708                 goto error_disable;
1709         }
1710
1711         switch (xgifb_info->chip_id) {
1712         case PCI_DEVICE_ID_XGI_20:
1713                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1714                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1715                 if (CR48&GPIOG_READ)
1716                         xgifb_info->chip = XG21;
1717                 else
1718                         xgifb_info->chip = XG20;
1719                 break;
1720         case PCI_DEVICE_ID_XGI_40:
1721                 xgifb_info->chip = XG40;
1722                 break;
1723         case PCI_DEVICE_ID_XGI_42:
1724                 xgifb_info->chip = XG42;
1725                 break;
1726         case PCI_DEVICE_ID_XGI_27:
1727                 xgifb_info->chip = XG27;
1728                 break;
1729         default:
1730                 ret = -ENODEV;
1731                 goto error_disable;
1732         }
1733
1734         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1735         hw_info->jChipType = xgifb_info->chip;
1736
1737         if (XGIfb_get_dram_size(xgifb_info)) {
1738                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1739                                                 SZ_16M);
1740         } else if (xgifb_info->video_size > video_size_max) {
1741                 xgifb_info->video_size = video_size_max;
1742         }
1743
1744         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1745         xgifb_reg_or(XGISR,
1746                      IND_SIS_PCI_ADDRESS_SET,
1747                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1748         /* Enable 2D accelerator engine */
1749         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1750
1751         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1752
1753         if (!request_mem_region(xgifb_info->video_base,
1754                                 xgifb_info->video_size,
1755                                 "XGIfb FB")) {
1756                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1757                        xgifb_info->video_size);
1758                 dev_err(&pdev->dev,
1759                         "Fatal error: Unable to reserve frame buffer memory. Is there another framebuffer driver active?\n");
1760                 ret = -ENODEV;
1761                 goto error_disable;
1762         }
1763
1764         if (!request_mem_region(xgifb_info->mmio_base,
1765                                 xgifb_info->mmio_size,
1766                                 "XGIfb MMIO")) {
1767                 dev_err(&pdev->dev,
1768                         "Fatal error: Unable to reserve MMIO region\n");
1769                 ret = -ENODEV;
1770                 goto error_0;
1771         }
1772
1773         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1774         ioremap(xgifb_info->video_base, xgifb_info->video_size);
1775         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1776                                             xgifb_info->mmio_size);
1777
1778         dev_info(&pdev->dev,
1779                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1780                  (u64) xgifb_info->video_base,
1781                  xgifb_info->video_vbase,
1782                  xgifb_info->video_size / 1024);
1783
1784         dev_info(&pdev->dev,
1785                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1786                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1787                  xgifb_info->mmio_size / 1024);
1788
1789         pci_set_drvdata(pdev, xgifb_info);
1790         if (!XGIInitNew(pdev))
1791                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1792
1793         xgifb_info->mtrr = -1;
1794
1795         xgifb_info->hasVB = HASVB_NONE;
1796         if ((xgifb_info->chip == XG20) ||
1797             (xgifb_info->chip == XG27)) {
1798                 xgifb_info->hasVB = HASVB_NONE;
1799         } else if (xgifb_info->chip == XG21) {
1800                 CR38 = xgifb_reg_get(XGICR, 0x38);
1801                 if ((CR38&0xE0) == 0xC0)
1802                         xgifb_info->display2 = XGIFB_DISP_LCD;
1803                 else if ((CR38&0xE0) == 0x60)
1804                         xgifb_info->hasVB = HASVB_CHRONTEL;
1805                 else
1806                         xgifb_info->hasVB = HASVB_NONE;
1807         } else {
1808                 XGIfb_get_VB_type(xgifb_info);
1809         }
1810
1811         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1812
1813         hw_info->ulExternalChip = 0;
1814
1815         switch (xgifb_info->hasVB) {
1816         case HASVB_301:
1817                 reg = xgifb_reg_get(XGIPART4, 0x01);
1818                 if (reg >= 0xE0) {
1819                         hw_info->ujVBChipID = VB_CHIP_302LV;
1820                         dev_info(&pdev->dev,
1821                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1822                                  reg);
1823                 } else if (reg >= 0xD0) {
1824                         hw_info->ujVBChipID = VB_CHIP_301LV;
1825                         dev_info(&pdev->dev,
1826                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1827                                  reg);
1828                 } else {
1829                         hw_info->ujVBChipID = VB_CHIP_301;
1830                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1831                 }
1832                 break;
1833         case HASVB_302:
1834                 reg = xgifb_reg_get(XGIPART4, 0x01);
1835                 if (reg >= 0xE0) {
1836                         hw_info->ujVBChipID = VB_CHIP_302LV;
1837                         dev_info(&pdev->dev,
1838                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1839                                  reg);
1840                 } else if (reg >= 0xD0) {
1841                         hw_info->ujVBChipID = VB_CHIP_301LV;
1842                         dev_info(&pdev->dev,
1843                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1844                                  reg);
1845                 } else if (reg >= 0xB0) {
1846                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1847
1848                         hw_info->ujVBChipID = VB_CHIP_302B;
1849
1850                 } else {
1851                         hw_info->ujVBChipID = VB_CHIP_302;
1852                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1853                 }
1854                 break;
1855         case HASVB_LVDS:
1856                 hw_info->ulExternalChip = 0x1;
1857                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1858                 break;
1859         case HASVB_TRUMPION:
1860                 hw_info->ulExternalChip = 0x2;
1861                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1862                 break;
1863         case HASVB_CHRONTEL:
1864                 hw_info->ulExternalChip = 0x4;
1865                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1866                 break;
1867         case HASVB_LVDS_CHRONTEL:
1868                 hw_info->ulExternalChip = 0x5;
1869                 dev_info(&pdev->dev,
1870                          "LVDS transmitter and Chrontel TV encoder detected\n");
1871                 break;
1872         default:
1873                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1874                 break;
1875         }
1876
1877         if (xgifb_info->hasVB != HASVB_NONE)
1878                 XGIfb_detect_VB(xgifb_info);
1879         else if (xgifb_info->chip != XG21)
1880                 xgifb_info->display2 = XGIFB_DISP_NONE;
1881
1882         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1883                 if (!enable_dstn) {
1884                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1885                         reg &= 0x0f;
1886                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1887                 }
1888         }
1889
1890         xgifb_info->mode_idx = -1;
1891
1892         if (mode)
1893                 XGIfb_search_mode(xgifb_info, mode);
1894         else if (vesa != -1)
1895                 XGIfb_search_vesamode(xgifb_info, vesa);
1896
1897         if (xgifb_info->mode_idx >= 0)
1898                 xgifb_info->mode_idx =
1899                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1900
1901         if (xgifb_info->mode_idx < 0) {
1902                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1903                     xgifb_info->chip == XG21)
1904                         xgifb_info->mode_idx =
1905                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1906                 else
1907                         xgifb_info->mode_idx = DEFAULT_MODE;
1908         }
1909
1910         if (xgifb_info->mode_idx < 0) {
1911                 dev_err(&pdev->dev, "No supported video mode found\n");
1912                 ret = -EINVAL;
1913                 goto error_1;
1914         }
1915
1916         /* set default refresh rate */
1917         xgifb_info->refresh_rate = refresh_rate;
1918         if (xgifb_info->refresh_rate == 0)
1919                 xgifb_info->refresh_rate = 60;
1920         if (XGIfb_search_refresh_rate(xgifb_info,
1921                         xgifb_info->refresh_rate) == 0) {
1922                 xgifb_info->rate_idx = 1;
1923                 xgifb_info->refresh_rate = 60;
1924         }
1925
1926         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1927         xgifb_info->video_vwidth =
1928                 xgifb_info->video_width =
1929                         XGIbios_mode[xgifb_info->mode_idx].xres;
1930         xgifb_info->video_vheight =
1931                 xgifb_info->video_height =
1932                         XGIbios_mode[xgifb_info->mode_idx].yres;
1933         xgifb_info->org_x = xgifb_info->org_y = 0;
1934         xgifb_info->video_linelength =
1935                 xgifb_info->video_width *
1936                 (xgifb_info->video_bpp >> 3);
1937         switch (xgifb_info->video_bpp) {
1938         case 8:
1939                 xgifb_info->DstColor = 0x0000;
1940                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1941                 xgifb_info->video_cmap_len = 256;
1942                 break;
1943         case 16:
1944                 xgifb_info->DstColor = 0x8000;
1945                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1946                 xgifb_info->video_cmap_len = 16;
1947                 break;
1948         case 32:
1949                 xgifb_info->DstColor = 0xC000;
1950                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1951                 xgifb_info->video_cmap_len = 16;
1952                 break;
1953         default:
1954                 xgifb_info->video_cmap_len = 16;
1955                 pr_info("Unsupported depth %d\n",
1956                        xgifb_info->video_bpp);
1957                 break;
1958         }
1959
1960         pr_info("Default mode is %dx%dx%d (%dHz)\n",
1961                xgifb_info->video_width,
1962                xgifb_info->video_height,
1963                xgifb_info->video_bpp,
1964                xgifb_info->refresh_rate);
1965
1966         fb_info->var.red.length         = 8;
1967         fb_info->var.green.length       = 8;
1968         fb_info->var.blue.length        = 8;
1969         fb_info->var.activate           = FB_ACTIVATE_NOW;
1970         fb_info->var.height             = -1;
1971         fb_info->var.width              = -1;
1972         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
1973         fb_info->var.xres               = xgifb_info->video_width;
1974         fb_info->var.xres_virtual       = xgifb_info->video_width;
1975         fb_info->var.yres               = xgifb_info->video_height;
1976         fb_info->var.yres_virtual       = xgifb_info->video_height;
1977         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
1978
1979         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1980
1981         fb_info->var.pixclock = (u32) (1000000000 /
1982                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
1983                                 hw_info,
1984                                 XGIbios_mode[xgifb_info->mode_idx].mode_no));
1985
1986         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
1987                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
1988                 &fb_info->var.left_margin,
1989                 &fb_info->var.right_margin,
1990                 &fb_info->var.upper_margin,
1991                 &fb_info->var.lower_margin,
1992                 &fb_info->var.hsync_len,
1993                 &fb_info->var.vsync_len,
1994                 &fb_info->var.sync,
1995                 &fb_info->var.vmode)) {
1996
1997                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1998                     FB_VMODE_INTERLACED) {
1999                         fb_info->var.yres <<= 1;
2000                         fb_info->var.yres_virtual <<= 1;
2001                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2002                            FB_VMODE_DOUBLE) {
2003                         fb_info->var.pixclock >>= 1;
2004                         fb_info->var.yres >>= 1;
2005                         fb_info->var.yres_virtual >>= 1;
2006                 }
2007
2008         }
2009
2010         fb_info->flags = FBINFO_FLAG_DEFAULT;
2011         fb_info->screen_base = xgifb_info->video_vbase;
2012         fb_info->fbops = &XGIfb_ops;
2013         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2014         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2015
2016         fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2017
2018 #ifdef CONFIG_MTRR
2019         xgifb_info->mtrr = mtrr_add(xgifb_info->video_base,
2020                 xgifb_info->video_size, MTRR_TYPE_WRCOMB, 1);
2021         if (xgifb_info->mtrr >= 0)
2022                 dev_info(&pdev->dev, "Added MTRR\n");
2023 #endif
2024
2025         if (register_framebuffer(fb_info) < 0) {
2026                 ret = -EINVAL;
2027                 goto error_mtrr;
2028         }
2029
2030         dumpVGAReg();
2031
2032         return 0;
2033
2034 error_mtrr:
2035 #ifdef CONFIG_MTRR
2036         if (xgifb_info->mtrr >= 0)
2037                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2038                         xgifb_info->video_size);
2039 #endif /* CONFIG_MTRR */
2040 error_1:
2041         iounmap(xgifb_info->mmio_vbase);
2042         iounmap(xgifb_info->video_vbase);
2043         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2044 error_0:
2045         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2046 error_disable:
2047         pci_disable_device(pdev);
2048 error:
2049         framebuffer_release(fb_info);
2050         return ret;
2051 }
2052
2053 /*****************************************************/
2054 /*                PCI DEVICE HANDLING                */
2055 /*****************************************************/
2056
2057 static void xgifb_remove(struct pci_dev *pdev)
2058 {
2059         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2060         struct fb_info *fb_info = xgifb_info->fb_info;
2061
2062         unregister_framebuffer(fb_info);
2063 #ifdef CONFIG_MTRR
2064         if (xgifb_info->mtrr >= 0)
2065                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2066                         xgifb_info->video_size);
2067 #endif /* CONFIG_MTRR */
2068         iounmap(xgifb_info->mmio_vbase);
2069         iounmap(xgifb_info->video_vbase);
2070         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2071         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2072         pci_disable_device(pdev);
2073         framebuffer_release(fb_info);
2074 }
2075
2076 static struct pci_driver xgifb_driver = {
2077         .name = "xgifb",
2078         .id_table = xgifb_pci_table,
2079         .probe = xgifb_probe,
2080         .remove = xgifb_remove
2081 };
2082
2083
2084
2085 /*****************************************************/
2086 /*                      MODULE                       */
2087 /*****************************************************/
2088
2089 module_param(mode, charp, 0);
2090 MODULE_PARM_DESC(mode,
2091         "Selects the desired default display mode in the format XxYxDepth (eg. 1024x768x16).");
2092
2093 module_param(forcecrt2type, charp, 0);
2094 MODULE_PARM_DESC(forcecrt2type,
2095         "Force the second display output type. Possible values are NONE, LCD, TV, VGA, SVIDEO or COMPOSITE.");
2096
2097 module_param(vesa, int, 0);
2098 MODULE_PARM_DESC(vesa,
2099         "Selects the desired default display mode by VESA mode number (eg. 0x117).");
2100
2101 module_param(filter, int, 0);
2102 MODULE_PARM_DESC(filter,
2103         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). Possible values 0-7. Default: [no filter]).");
2104
2105 static int __init xgifb_init(void)
2106 {
2107         char *option = NULL;
2108
2109         if (forcecrt2type != NULL)
2110                 XGIfb_search_crt2type(forcecrt2type);
2111         if (fb_get_options("xgifb", &option))
2112                 return -ENODEV;
2113         XGIfb_setup(option);
2114
2115         return pci_register_driver(&xgifb_driver);
2116 }
2117
2118 static void __exit xgifb_remove_module(void)
2119 {
2120         pci_unregister_driver(&xgifb_driver);
2121         pr_debug("Module unloaded\n");
2122 }
2123
2124 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2125 MODULE_LICENSE("GPL");
2126 MODULE_AUTHOR("XGITECH , Others");
2127 module_init(xgifb_init);
2128 module_exit(xgifb_remove_module);