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         } else {
 594                 pr_info("Unsupported rate %d for %dx%d\n",
 595                        rate, xres, yres);
 596                 return 0;
 597         }
 598 }
 599
 600 static void XGIfb_search_tvstd(const char *name)
 601 {
 602         int i = 0;
 603
 604         if (name == NULL)
 605                 return;
 606
 607         while (XGI_tvtype[i].type_no != -1) {
 608                 if (!strcmp(name, XGI_tvtype[i].name)) {
 609                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 610                         break;
 611                 }
 612                 i++;
 613         }
 614 }
 615
 616 /* ----------- FBDev related routines for all series ----------- */
 617
 618 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 619                              struct fb_var_screeninfo *var)
 620 {
 621         switch (var->bits_per_pixel) {
 622         case 8:
 623                 var->red.offset = var->green.offset = var->blue.offset = 0;
 624                 var->red.length = var->green.length = var->blue.length = 6;
 625                 xgifb_info->video_cmap_len = 256;
 626                 break;
 627         case 16:
 628                 var->red.offset = 11;
 629                 var->red.length = 5;
 630                 var->green.offset = 5;
 631                 var->green.length = 6;
 632                 var->blue.offset = 0;
 633                 var->blue.length = 5;
 634                 var->transp.offset = 0;
 635                 var->transp.length = 0;
 636                 xgifb_info->video_cmap_len = 16;
 637                 break;
 638         case 32:
 639                 var->red.offset = 16;
 640                 var->red.length = 8;
 641                 var->green.offset = 8;
 642                 var->green.length = 8;
 643                 var->blue.offset = 0;
 644                 var->blue.length = 8;
 645                 var->transp.offset = 24;
 646                 var->transp.length = 8;
 647                 xgifb_info->video_cmap_len = 16;
 648                 break;
 649         }
 650 }
 651
 652 /* --------------------- SetMode routines ------------------------- */
 653
 654 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 655 {
 656         u8 cr30 = 0, cr31 = 0;
 657
 658         cr31 = xgifb_reg_get(XGICR, 0x31);
 659         cr31 &= ~0x60;
 660
 661         switch (xgifb_info->display2) {
 662         case XGIFB_DISP_CRT:
 663                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 664                 cr31 |= SIS_DRIVER_MODE;
 665                 break;
 666         case XGIFB_DISP_LCD:
 667                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 668                 cr31 |= SIS_DRIVER_MODE;
 669                 break;
 670         case XGIFB_DISP_TV:
 671                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 672                         cr30 = (SIS_VB_OUTPUT_HIVISION
 673                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 674                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 675                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 676                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 677                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 678                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 679                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 680                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 681                         cr30 = (SIS_VB_OUTPUT_SCART
 682                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 683                 cr31 |= SIS_DRIVER_MODE;
 684
 685                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 686                         cr31 |= 0x01;
 687                 else
 688                         cr31 &= ~0x01;
 689                 break;
 690         default: /* disable CRT2 */
 691                 cr30 = 0x00;
 692                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 693         }
 694
 695         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 696         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 697         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 698                                                 (xgifb_info->rate_idx & 0x0F));
 699 }
 700
 701 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 702 {
 703         u8 reg;
 704         unsigned char doit = 1;
 705
 706         if (xgifb_info->video_bpp == 8) {
 707                 /*
 708                  * We can't switch off CRT1 on LVDS/Chrontel
 709                  * in 8bpp Modes
 710                  */
 711                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 712                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 713                         doit = 0;
 714                 }
 715                 /*
 716                  * We can't switch off CRT1 on 301B-DH
 717                  * in 8bpp Modes if using LCD
 718                  */
 719                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 720                         doit = 0;
 721         }
 722
 723         /* We can't switch off CRT1 if bridge is in slave mode */
 724         if (xgifb_info->hasVB != HASVB_NONE) {
 725                 reg = xgifb_reg_get(XGIPART1, 0x00);
 726
 727                 if ((reg & 0x50) == 0x10)
 728                         doit = 0;
 729
 730         } else {
 731                 XGIfb_crt1off = 0;
 732         }
 733
 734         reg = xgifb_reg_get(XGICR, 0x17);
 735         if ((XGIfb_crt1off) && (doit))
 736                 reg &= ~0x80;
 737         else
 738                 reg |= 0x80;
 739         xgifb_reg_set(XGICR, 0x17, reg);
 740
 741         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 742
 743         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 744             xgifb_info->hasVB == HASVB_301) {
 745
 746                 reg = xgifb_reg_get(XGIPART4, 0x01);
 747
 748                 if (reg < 0xB0) { /* Set filter for XGI301 */
 749                         int filter_tb;
 750
 751                         switch (xgifb_info->video_width) {
 752                         case 320:
 753                                 filter_tb = (xgifb_info->TV_type ==
 754                                              TVMODE_NTSC) ? 4 : 12;
 755                                 break;
 756                         case 640:
 757                                 filter_tb = (xgifb_info->TV_type ==
 758                                              TVMODE_NTSC) ? 5 : 13;
 759                                 break;
 760                         case 720:
 761                                 filter_tb = (xgifb_info->TV_type ==
 762                                              TVMODE_NTSC) ? 6 : 14;
 763                                 break;
 764                         case 800:
 765                                 filter_tb = (xgifb_info->TV_type ==
 766                                              TVMODE_NTSC) ? 7 : 15;
 767                                 break;
 768                         default:
 769                                 filter_tb = 0;
 770                                 filter = -1;
 771                                 break;
 772                         }
 773                         xgifb_reg_or(XGIPART1,
 774                                      SIS_CRT2_WENABLE_315,
 775                                      0x01);
 776
 777                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 778
 779                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 780
 781                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 782
 783                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 784
 785                                 } else if (xgifb_info->TV_plug
 786                                                 == TVPLUG_COMPOSITE) {
 787
 788                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 789
 790                                         switch (xgifb_info->video_width) {
 791                                         case 640:
 792                                                 xgifb_reg_set(XGIPART2,
 793                                                               0x35,
 794                                                               0xEB);
 795                                                 xgifb_reg_set(XGIPART2,
 796                                                               0x36,
 797                                                               0x04);
 798                                                 xgifb_reg_set(XGIPART2,
 799                                                               0x37,
 800                                                               0x25);
 801                                                 xgifb_reg_set(XGIPART2,
 802                                                               0x38,
 803                                                               0x18);
 804                                                 break;
 805                                         case 720:
 806                                                 xgifb_reg_set(XGIPART2,
 807                                                               0x35,
 808                                                               0xEE);
 809                                                 xgifb_reg_set(XGIPART2,
 810                                                               0x36,
 811                                                               0x0C);
 812                                                 xgifb_reg_set(XGIPART2,
 813                                                               0x37,
 814                                                               0x22);
 815                                                 xgifb_reg_set(XGIPART2,
 816                                                               0x38,
 817                                                               0x08);
 818                                                 break;
 819                                         case 800:
 820                                                 xgifb_reg_set(XGIPART2,
 821                                                               0x35,
 822                                                               0xEB);
 823                                                 xgifb_reg_set(XGIPART2,
 824                                                               0x36,
 825                                                               0x15);
 826                                                 xgifb_reg_set(XGIPART2,
 827                                                               0x37,
 828                                                               0x25);
 829                                                 xgifb_reg_set(XGIPART2,
 830                                                               0x38,
 831                                                               0xF6);
 832                                                 break;
 833                                         }
 834                                 }
 835
 836                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 837
 838                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 839
 840                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 841
 842                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 843
 844                                 } else if (xgifb_info->TV_plug
 845                                                 == TVPLUG_COMPOSITE) {
 846
 847                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 848
 849                                         switch (xgifb_info->video_width) {
 850                                         case 640:
 851                                                 xgifb_reg_set(XGIPART2,
 852                                                               0x35,
 853                                                               0xF1);
 854                                                 xgifb_reg_set(XGIPART2,
 855                                                               0x36,
 856                                                               0xF7);
 857                                                 xgifb_reg_set(XGIPART2,
 858                                                               0x37,
 859                                                               0x1F);
 860                                                 xgifb_reg_set(XGIPART2,
 861                                                               0x38,
 862                                                               0x32);
 863                                                 break;
 864                                         case 720:
 865                                                 xgifb_reg_set(XGIPART2,
 866                                                               0x35,
 867                                                               0xF3);
 868                                                 xgifb_reg_set(XGIPART2,
 869                                                               0x36,
 870                                                               0x00);
 871                                                 xgifb_reg_set(XGIPART2,
 872                                                               0x37,
 873                                                               0x1D);
 874                                                 xgifb_reg_set(XGIPART2,
 875                                                               0x38,
 876                                                               0x20);
 877                                                 break;
 878                                         case 800:
 879                                                 xgifb_reg_set(XGIPART2,
 880                                                               0x35,
 881                                                               0xFC);
 882                                                 xgifb_reg_set(XGIPART2,
 883                                                               0x36,
 884                                                               0xFB);
 885                                                 xgifb_reg_set(XGIPART2,
 886                                                               0x37,
 887                                                               0x14);
 888                                                 xgifb_reg_set(XGIPART2,
 889                                                               0x38,
 890                                                               0x2A);
 891                                                 break;
 892                                         }
 893                                 }
 894                         }
 895
 896                         if ((filter >= 0) && (filter <= 7)) {
 897                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 898                                          filter_tb, filter,
 899                                          4, XGI_TV_filter[filter_tb].
 900                                                    filter[filter]);
 901                                 xgifb_reg_set(
 902                                         XGIPART2,
 903                                         0x35,
 904                                         (XGI_TV_filter[filter_tb].
 905                                                 filter[filter][0]));
 906                                 xgifb_reg_set(
 907                                         XGIPART2,
 908                                         0x36,
 909                                         (XGI_TV_filter[filter_tb].
 910                                                 filter[filter][1]));
 911                                 xgifb_reg_set(
 912                                         XGIPART2,
 913                                         0x37,
 914                                         (XGI_TV_filter[filter_tb].
 915                                                 filter[filter][2]));
 916                                 xgifb_reg_set(
 917                                         XGIPART2,
 918                                         0x38,
 919                                         (XGI_TV_filter[filter_tb].
 920                                                 filter[filter][3]));
 921                         }
 922                 }
 923         }
 924 }
 925
 926 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 927                 struct fb_info *info)
 928 {
 929         struct xgifb_video_info *xgifb_info = info->par;
 930         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 931         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 932                         + var->hsync_len;
 933         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 934                         + var->vsync_len;
 935 #if defined(__powerpc__)
 936         u8 cr_data;
 937 #endif
 938         unsigned int drate = 0, hrate = 0;
 939         int found_mode = 0;
 940         int old_mode;
 941
 942         info->var.xres_virtual = var->xres_virtual;
 943         info->var.yres_virtual = var->yres_virtual;
 944         info->var.bits_per_pixel = var->bits_per_pixel;
 945
 946         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 947                 vtotal <<= 1;
 948         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 949                 vtotal <<= 2;
 950
 951         if (!htotal || !vtotal) {
 952                 pr_debug("Invalid 'var' information\n");
 953                 return -EINVAL;
 954         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 955                         var->pixclock, htotal, vtotal);
 956
 957         if (var->pixclock && htotal && vtotal) {
 958                 drate = 1000000000 / var->pixclock;
 959                 hrate = (drate * 1000) / htotal;
 960                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 961                                 / vtotal);
 962         } else {
 963                 xgifb_info->refresh_rate = 60;
 964         }
 965
 966         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 967                var->xres,
 968                var->yres,
 969                var->bits_per_pixel,
 970                xgifb_info->refresh_rate);
 971
 972         old_mode = xgifb_info->mode_idx;
 973         xgifb_info->mode_idx = 0;
 974
 975         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
 976                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
 977                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
 978                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
 979                     (XGIbios_mode[xgifb_info->mode_idx].bpp
 980                                                 == var->bits_per_pixel)) {
 981                         found_mode = 1;
 982                         break;
 983                 }
 984                 xgifb_info->mode_idx++;
 985         }
 986
 987         if (found_mode)
 988                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
 989                                                         xgifb_info->mode_idx);
 990         else
 991                 xgifb_info->mode_idx = -1;
 992
 993         if (xgifb_info->mode_idx < 0) {
 994                 pr_err("Mode %dx%dx%d not supported\n",
 995                        var->xres, var->yres, var->bits_per_pixel);
 996                 xgifb_info->mode_idx = old_mode;
 997                 return -EINVAL;
 998         }
 999
1000         if (XGIfb_search_refresh_rate(xgifb_info,
1001                                       xgifb_info->refresh_rate) == 0) {
1002                 xgifb_info->rate_idx = 1;
1003                 xgifb_info->refresh_rate = 60;
1004         }
1005
1006         if (isactive) {
1007
1008                 XGIfb_pre_setmode(xgifb_info);
1009                 if (XGISetModeNew(xgifb_info, hw_info,
1010                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1011                                         == 0) {
1012                         pr_err("Setting mode[0x%x] failed\n",
1013                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1014                         return -EINVAL;
1015                 }
1016                 info->fix.line_length = ((info->var.xres_virtual
1017                                 * info->var.bits_per_pixel) >> 6);
1018
1019                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1020
1021                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1022                 xgifb_reg_set(XGISR,
1023                               0x0E,
1024                               (info->fix.line_length & 0xff00) >> 8);
1025
1026                 XGIfb_post_setmode(xgifb_info);
1027
1028                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1029                          XGIbios_mode[xgifb_info->mode_idx].xres,
1030                          XGIbios_mode[xgifb_info->mode_idx].yres,
1031                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1032                          xgifb_info->refresh_rate);
1033
1034                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1035                 xgifb_info->video_vwidth = info->var.xres_virtual;
1036                 xgifb_info->video_width =
1037                         XGIbios_mode[xgifb_info->mode_idx].xres;
1038                 xgifb_info->video_vheight = info->var.yres_virtual;
1039                 xgifb_info->video_height =
1040                         XGIbios_mode[xgifb_info->mode_idx].yres;
1041                 xgifb_info->org_x = xgifb_info->org_y = 0;
1042                 xgifb_info->video_linelength = info->var.xres_virtual
1043                                 * (xgifb_info->video_bpp >> 3);
1044                 switch (xgifb_info->video_bpp) {
1045                 case 8:
1046                         xgifb_info->DstColor = 0x0000;
1047                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1048                         xgifb_info->video_cmap_len = 256;
1049 #if defined(__powerpc__)
1050                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1051                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1052 #endif
1053                         break;
1054                 case 16:
1055                         xgifb_info->DstColor = 0x8000;
1056                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1057 #if defined(__powerpc__)
1058                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1059                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1060 #endif
1061                         xgifb_info->video_cmap_len = 16;
1062                         break;
1063                 case 32:
1064                         xgifb_info->DstColor = 0xC000;
1065                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1066                         xgifb_info->video_cmap_len = 16;
1067 #if defined(__powerpc__)
1068                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1069                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1070 #endif
1071                         break;
1072                 default:
1073                         xgifb_info->video_cmap_len = 16;
1074                         pr_err("Unsupported depth %d\n",
1075                                xgifb_info->video_bpp);
1076                         break;
1077                 }
1078         }
1079         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1080
1081         dumpVGAReg();
1082         return 0;
1083 }
1084
1085 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1086 {
1087         struct xgifb_video_info *xgifb_info = info->par;
1088         unsigned int base;
1089
1090         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1091
1092         /* calculate base bpp dep. */
1093         switch (info->var.bits_per_pixel) {
1094         case 16:
1095                 base >>= 1;
1096                 break;
1097         case 32:
1098                 break;
1099         case 8:
1100         default:
1101                 base >>= 2;
1102                 break;
1103         }
1104
1105         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1106
1107         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1108         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1109         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1110         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1111         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1112
1113         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1114                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1115                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1116                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1117                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1118                 xgifb_reg_and_or(XGIPART1,
1119                                  0x02,
1120                                  0x7F,
1121                                  ((base >> 24) & 0x01) << 7);
1122         }
1123         return 0;
1124 }
1125
1126 static int XGIfb_open(struct fb_info *info, int user)
1127 {
1128         return 0;
1129 }
1130
1131 static int XGIfb_release(struct fb_info *info, int user)
1132 {
1133         return 0;
1134 }
1135
1136 /* similar to sisfb_get_cmap_len */
1137 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1138 {
1139         return (var->bits_per_pixel == 8) ? 256 : 16;
1140 }
1141
1142 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1143                 unsigned blue, unsigned transp, struct fb_info *info)
1144 {
1145         struct xgifb_video_info *xgifb_info = info->par;
1146
1147         if (regno >= XGIfb_get_cmap_len(&info->var))
1148                 return 1;
1149
1150         switch (info->var.bits_per_pixel) {
1151         case 8:
1152                 outb(regno, XGIDACA);
1153                 outb((red >> 10), XGIDACD);
1154                 outb((green >> 10), XGIDACD);
1155                 outb((blue >> 10), XGIDACD);
1156                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1157                         outb(regno, XGIDAC2A);
1158                         outb((red >> 8), XGIDAC2D);
1159                         outb((green >> 8), XGIDAC2D);
1160                         outb((blue >> 8), XGIDAC2D);
1161                 }
1162                 break;
1163         case 16:
1164                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1165                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1166                                 >> 11);
1167                 break;
1168         case 32:
1169                 red >>= 8;
1170                 green >>= 8;
1171                 blue >>= 8;
1172                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1173                                 << 8) | (blue);
1174                 break;
1175         }
1176         return 0;
1177 }
1178
1179 /* ----------- FBDev related routines for all series ---------- */
1180
1181 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1182                 struct fb_info *info)
1183 {
1184         struct xgifb_video_info *xgifb_info = info->par;
1185
1186         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1187
1188         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1189
1190         /* if register_framebuffer has been called, we must lock */
1191         if (atomic_read(&info->count))
1192                 mutex_lock(&info->mm_lock);
1193
1194         fix->smem_start = xgifb_info->video_base;
1195         fix->smem_len = xgifb_info->video_size;
1196
1197         /* if register_framebuffer has been called, we can unlock */
1198         if (atomic_read(&info->count))
1199                 mutex_unlock(&info->mm_lock);
1200
1201         fix->type = FB_TYPE_PACKED_PIXELS;
1202         fix->type_aux = 0;
1203         if (xgifb_info->video_bpp == 8)
1204                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1205         else
1206                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1207         fix->xpanstep = 0;
1208         if (XGIfb_ypan)
1209                 fix->ypanstep = 1;
1210         fix->ywrapstep = 0;
1211         fix->line_length = xgifb_info->video_linelength;
1212         fix->mmio_start = xgifb_info->mmio_base;
1213         fix->mmio_len = xgifb_info->mmio_size;
1214         fix->accel = FB_ACCEL_SIS_XABRE;
1215
1216         return 0;
1217 }
1218
1219 static int XGIfb_set_par(struct fb_info *info)
1220 {
1221         int err;
1222
1223         err = XGIfb_do_set_var(&info->var, 1, info);
1224         if (err)
1225                 return err;
1226         XGIfb_get_fix(&info->fix, -1, info);
1227         return 0;
1228 }
1229
1230 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1231 {
1232         struct xgifb_video_info *xgifb_info = info->par;
1233         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1234                         + var->hsync_len;
1235         unsigned int vtotal = 0;
1236         unsigned int drate = 0, hrate = 0;
1237         int found_mode = 0;
1238         int refresh_rate, search_idx;
1239
1240         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1241                 vtotal = var->upper_margin + var->yres + var->lower_margin
1242                                 + var->vsync_len;
1243                 vtotal <<= 1;
1244         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1245                 vtotal = var->upper_margin + var->yres + var->lower_margin
1246                                 + var->vsync_len;
1247                 vtotal <<= 2;
1248         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1249                 vtotal = var->upper_margin + (var->yres / 2)
1250                                 + var->lower_margin + var->vsync_len;
1251         } else
1252                 vtotal = var->upper_margin + var->yres + var->lower_margin
1253                                 + var->vsync_len;
1254
1255         if (!(htotal) || !(vtotal)) {
1256                 pr_debug("No valid timing data\n");
1257                 return -EINVAL;
1258         }
1259
1260         if (var->pixclock && htotal && vtotal) {
1261                 drate = 1000000000 / var->pixclock;
1262                 hrate = (drate * 1000) / htotal;
1263                 xgifb_info->refresh_rate =
1264                         (unsigned int) (hrate * 2 / vtotal);
1265                 pr_debug(
1266                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1267                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1268                         __func__, var->pixclock, htotal, vtotal,
1269                         __func__, drate, hrate, xgifb_info->refresh_rate);
1270         } else {
1271                 xgifb_info->refresh_rate = 60;
1272         }
1273
1274         /* Calculation wrong for 1024x600 - force it to 60Hz */
1275         if ((var->xres == 1024) && (var->yres == 600))
1276                 refresh_rate = 60;
1277
1278         search_idx = 0;
1279         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1280                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1281                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1282                         (XGIbios_mode[search_idx].yres == var->yres) &&
1283                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1284                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1285                                 found_mode = 1;
1286                                 break;
1287                         }
1288                 }
1289                 search_idx++;
1290         }
1291
1292         if (!found_mode) {
1293
1294                 pr_err("%dx%dx%d is no valid mode\n",
1295                         var->xres, var->yres, var->bits_per_pixel);
1296                 search_idx = 0;
1297                 while (XGIbios_mode[search_idx].mode_no != 0) {
1298                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1299                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1300                             (var->bits_per_pixel ==
1301                              XGIbios_mode[search_idx].bpp)) {
1302                                 if (XGIfb_validate_mode(xgifb_info,
1303                                                         search_idx) > 0) {
1304                                         found_mode = 1;
1305                                         break;
1306                                 }
1307                         }
1308                         search_idx++;
1309                 }
1310                 if (found_mode) {
1311                         var->xres = XGIbios_mode[search_idx].xres;
1312                         var->yres = XGIbios_mode[search_idx].yres;
1313                         pr_debug("Adapted to mode %dx%dx%d\n",
1314                                 var->xres, var->yres, var->bits_per_pixel);
1315
1316                 } else {
1317                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1318                                 var->xres, var->yres, var->bits_per_pixel);
1319                         return -EINVAL;
1320                 }
1321         }
1322
1323         /* Adapt RGB settings */
1324         XGIfb_bpp_to_var(xgifb_info, var);
1325
1326         if (!XGIfb_ypan) {
1327                 if (var->xres != var->xres_virtual)
1328                         var->xres_virtual = var->xres;
1329                 if (var->yres != var->yres_virtual)
1330                         var->yres_virtual = var->yres;
1331         }
1332
1333         /* Truncate offsets to maximum if too high */
1334         if (var->xoffset > var->xres_virtual - var->xres)
1335                 var->xoffset = var->xres_virtual - var->xres - 1;
1336
1337         if (var->yoffset > var->yres_virtual - var->yres)
1338                 var->yoffset = var->yres_virtual - var->yres - 1;
1339
1340         /* Set everything else to 0 */
1341         var->red.msb_right =
1342         var->green.msb_right =
1343         var->blue.msb_right =
1344         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1345
1346         return 0;
1347 }
1348
1349 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1350                 struct fb_info *info)
1351 {
1352         int err;
1353
1354         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1355                 return -EINVAL;
1356         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1357                 return -EINVAL;
1358
1359         if (var->vmode & FB_VMODE_YWRAP) {
1360                 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1361                         return -EINVAL;
1362         } else if (var->xoffset + info->var.xres > info->var.xres_virtual
1363                                 || var->yoffset + info->var.yres
1364                                                 > info->var.yres_virtual) {
1365                 return -EINVAL;
1366         }
1367         err = XGIfb_pan_var(var, info);
1368         if (err < 0)
1369                 return err;
1370
1371         info->var.xoffset = var->xoffset;
1372         info->var.yoffset = var->yoffset;
1373         if (var->vmode & FB_VMODE_YWRAP)
1374                 info->var.vmode |= FB_VMODE_YWRAP;
1375         else
1376                 info->var.vmode &= ~FB_VMODE_YWRAP;
1377
1378         return 0;
1379 }
1380
1381 static int XGIfb_blank(int blank, struct fb_info *info)
1382 {
1383         struct xgifb_video_info *xgifb_info = info->par;
1384         u8 reg;
1385
1386         reg = xgifb_reg_get(XGICR, 0x17);
1387
1388         if (blank > 0)
1389                 reg &= 0x7f;
1390         else
1391                 reg |= 0x80;
1392
1393         xgifb_reg_set(XGICR, 0x17, reg);
1394         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1395         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1396         return 0;
1397 }
1398
1399 static struct fb_ops XGIfb_ops = {
1400         .owner = THIS_MODULE,
1401         .fb_open = XGIfb_open,
1402         .fb_release = XGIfb_release,
1403         .fb_check_var = XGIfb_check_var,
1404         .fb_set_par = XGIfb_set_par,
1405         .fb_setcolreg = XGIfb_setcolreg,
1406         .fb_pan_display = XGIfb_pan_display,
1407         .fb_blank = XGIfb_blank,
1408         .fb_fillrect = cfb_fillrect,
1409         .fb_copyarea = cfb_copyarea,
1410         .fb_imageblit = cfb_imageblit,
1411 };
1412
1413 /* ---------------- Chip generation dependent routines ---------------- */
1414
1415 /* for XGI 315/550/650/740/330 */
1416
1417 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1418 {
1419
1420         u8 ChannelNum, tmp;
1421         u8 reg = 0;
1422
1423         /* xorg driver sets 32MB * 1 channel */
1424         if (xgifb_info->chip == XG27)
1425                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1426
1427         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1428         if (!reg)
1429                 return -1;
1430
1431         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1432         case XGI_DRAM_SIZE_1MB:
1433                 xgifb_info->video_size = 0x100000;
1434                 break;
1435         case XGI_DRAM_SIZE_2MB:
1436                 xgifb_info->video_size = 0x200000;
1437                 break;
1438         case XGI_DRAM_SIZE_4MB:
1439                 xgifb_info->video_size = 0x400000;
1440                 break;
1441         case XGI_DRAM_SIZE_8MB:
1442                 xgifb_info->video_size = 0x800000;
1443                 break;
1444         case XGI_DRAM_SIZE_16MB:
1445                 xgifb_info->video_size = 0x1000000;
1446                 break;
1447         case XGI_DRAM_SIZE_32MB:
1448                 xgifb_info->video_size = 0x2000000;
1449                 break;
1450         case XGI_DRAM_SIZE_64MB:
1451                 xgifb_info->video_size = 0x4000000;
1452                 break;
1453         case XGI_DRAM_SIZE_128MB:
1454                 xgifb_info->video_size = 0x8000000;
1455                 break;
1456         case XGI_DRAM_SIZE_256MB:
1457                 xgifb_info->video_size = 0x10000000;
1458                 break;
1459         default:
1460                 return -1;
1461         }
1462
1463         tmp = (reg & 0x0c) >> 2;
1464         switch (xgifb_info->chip) {
1465         case XG20:
1466         case XG21:
1467         case XG27:
1468                 ChannelNum = 1;
1469                 break;
1470
1471         case XG42:
1472                 if (reg & 0x04)
1473                         ChannelNum = 2;
1474                 else
1475                         ChannelNum = 1;
1476                 break;
1477
1478         case XG40:
1479         default:
1480                 if (tmp == 2)
1481                         ChannelNum = 2;
1482                 else if (tmp == 3)
1483                         ChannelNum = 3;
1484                 else
1485                         ChannelNum = 1;
1486                 break;
1487         }
1488
1489         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1490
1491         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1492                reg,
1493                xgifb_info->video_size, ChannelNum);
1494         return 0;
1495
1496 }
1497
1498 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1499 {
1500         u8 cr32, temp = 0;
1501
1502         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1503
1504         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1505
1506         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1507                 XGIfb_crt1off = 0;
1508         else {
1509                 if (cr32 & 0x5F)
1510                         XGIfb_crt1off = 1;
1511                 else
1512                         XGIfb_crt1off = 0;
1513         }
1514
1515         if (!xgifb_info->display2_force) {
1516                 if (cr32 & SIS_VB_TV)
1517                         xgifb_info->display2 = XGIFB_DISP_TV;
1518                 else if (cr32 & SIS_VB_LCD)
1519                         xgifb_info->display2 = XGIFB_DISP_LCD;
1520                 else if (cr32 & SIS_VB_CRT2)
1521                         xgifb_info->display2 = XGIFB_DISP_CRT;
1522                 else
1523                         xgifb_info->display2 = XGIFB_DISP_NONE;
1524         }
1525
1526         if (XGIfb_tvplug != -1)
1527                 /* Override with option */
1528                 xgifb_info->TV_plug = XGIfb_tvplug;
1529         else if (cr32 & SIS_VB_HIVISION) {
1530                 xgifb_info->TV_type = TVMODE_HIVISION;
1531                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1532         } else if (cr32 & SIS_VB_SVIDEO)
1533                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1534         else if (cr32 & SIS_VB_COMPOSITE)
1535                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1536         else if (cr32 & SIS_VB_SCART)
1537                 xgifb_info->TV_plug = TVPLUG_SCART;
1538
1539         if (xgifb_info->TV_type == 0) {
1540                 temp = xgifb_reg_get(XGICR, 0x38);
1541                 if (temp & 0x10)
1542                         xgifb_info->TV_type = TVMODE_PAL;
1543                 else
1544                         xgifb_info->TV_type = TVMODE_NTSC;
1545         }
1546
1547         /* Copy forceCRT1 option to CRT1off if option is given */
1548         if (XGIfb_forcecrt1 != -1) {
1549                 if (XGIfb_forcecrt1)
1550                         XGIfb_crt1off = 0;
1551                 else
1552                         XGIfb_crt1off = 1;
1553         }
1554 }
1555
1556 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1557 {
1558         u8 vb_chipid;
1559
1560         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1561         switch (vb_chipid) {
1562         case 0x01:
1563                 xgifb_info->hasVB = HASVB_301;
1564                 break;
1565         case 0x02:
1566                 xgifb_info->hasVB = HASVB_302;
1567                 break;
1568         default:
1569                 xgifb_info->hasVB = HASVB_NONE;
1570                 return 0;
1571         }
1572         return 1;
1573 }
1574
1575 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1576 {
1577         u8 reg;
1578
1579         if (!XGIfb_has_VB(xgifb_info)) {
1580                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1581                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1582                 case SIS_EXTERNAL_CHIP_LVDS:
1583                         xgifb_info->hasVB = HASVB_LVDS;
1584                         break;
1585                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1586                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1587                         break;
1588                 default:
1589                         break;
1590                 }
1591         }
1592 }
1593
1594 static int __init xgifb_optval(char *fullopt, int validx)
1595 {
1596         unsigned long lres;
1597
1598         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1599                 pr_err("Invalid value for option: %s\n", fullopt);
1600                 return 0;
1601         }
1602         return lres;
1603 }
1604
1605 static int __init XGIfb_setup(char *options)
1606 {
1607         char *this_opt;
1608
1609         if (!options || !*options)
1610                 return 0;
1611
1612         pr_info("Options: %s\n", options);
1613
1614         while ((this_opt = strsep(&options, ",")) != NULL) {
1615
1616                 if (!*this_opt)
1617                         continue;
1618
1619                 if (!strncmp(this_opt, "mode:", 5)) {
1620                         mode = this_opt + 5;
1621                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1622                         vesa = xgifb_optval(this_opt, 5);
1623                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1624                         refresh_rate = xgifb_optval(this_opt, 6);
1625                 } else if (!strncmp(this_opt, "rate:", 5)) {
1626                         refresh_rate = xgifb_optval(this_opt, 5);
1627                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1628                         XGIfb_crt1off = 1;
1629                 } else if (!strncmp(this_opt, "filter:", 7)) {
1630                         filter = xgifb_optval(this_opt, 7);
1631                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1632                         XGIfb_search_crt2type(this_opt + 14);
1633                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1634                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1635                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1636                         XGIfb_search_tvstd(this_opt + 7);
1637                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1638                         XGIfb_search_tvstd(this_opt + 7);
1639                 } else if (!strncmp(this_opt, "dstn", 4)) {
1640                         enable_dstn = 1;
1641                         /* DSTN overrules forcecrt2type */
1642                         XGIfb_crt2type = XGIFB_DISP_LCD;
1643                 } else if (!strncmp(this_opt, "noypan", 6)) {
1644                         XGIfb_ypan = 0;
1645                 } else {
1646                         mode = this_opt;
1647                 }
1648         }
1649         return 0;
1650 }
1651
1652 static int xgifb_probe(struct pci_dev *pdev,
1653                 const struct pci_device_id *ent)
1654 {
1655         u8 reg, reg1;
1656         u8 CR48, CR38;
1657         int ret;
1658         struct fb_info *fb_info;
1659         struct xgifb_video_info *xgifb_info;
1660         struct xgi_hw_device_info *hw_info;
1661         unsigned long video_size_max;
1662
1663         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1664         if (!fb_info)
1665                 return -ENOMEM;
1666
1667         xgifb_info = fb_info->par;
1668         hw_info = &xgifb_info->hw_info;
1669         xgifb_info->fb_info = fb_info;
1670         xgifb_info->chip_id = pdev->device;
1671         pci_read_config_byte(pdev,
1672                              PCI_REVISION_ID,
1673                              &xgifb_info->revision_id);
1674         hw_info->jChipRevision = xgifb_info->revision_id;
1675
1676         xgifb_info->pcibus = pdev->bus->number;
1677         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1678         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1679         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1680         xgifb_info->subsysdevice = pdev->subsystem_device;
1681
1682         video_size_max = pci_resource_len(pdev, 0);
1683         xgifb_info->video_base = pci_resource_start(pdev, 0);
1684         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1685         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1686         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1687         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1688                  (u64) pci_resource_start(pdev, 2),
1689                  xgifb_info->vga_base);
1690
1691         if (pci_enable_device(pdev)) {
1692                 ret = -EIO;
1693                 goto error;
1694         }
1695
1696         if (XGIfb_crt2type != -1) {
1697                 xgifb_info->display2 = XGIfb_crt2type;
1698                 xgifb_info->display2_force = true;
1699         }
1700
1701         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1702
1703         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1704         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1705
1706         if (reg1 != 0xa1) { /*I/O error */
1707                 dev_err(&pdev->dev, "I/O error\n");
1708                 ret = -EIO;
1709                 goto error_disable;
1710         }
1711
1712         switch (xgifb_info->chip_id) {
1713         case PCI_DEVICE_ID_XGI_20:
1714                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1715                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1716                 if (CR48&GPIOG_READ)
1717                         xgifb_info->chip = XG21;
1718                 else
1719                         xgifb_info->chip = XG20;
1720                 break;
1721         case PCI_DEVICE_ID_XGI_40:
1722                 xgifb_info->chip = XG40;
1723                 break;
1724         case PCI_DEVICE_ID_XGI_42:
1725                 xgifb_info->chip = XG42;
1726                 break;
1727         case PCI_DEVICE_ID_XGI_27:
1728                 xgifb_info->chip = XG27;
1729                 break;
1730         default:
1731                 ret = -ENODEV;
1732                 goto error_disable;
1733         }
1734
1735         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1736         hw_info->jChipType = xgifb_info->chip;
1737
1738         if (XGIfb_get_dram_size(xgifb_info)) {
1739                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1740                                                 SZ_16M);
1741         } else if (xgifb_info->video_size > video_size_max) {
1742                 xgifb_info->video_size = video_size_max;
1743         }
1744
1745         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1746         xgifb_reg_or(XGISR,
1747                      IND_SIS_PCI_ADDRESS_SET,
1748                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1749         /* Enable 2D accelerator engine */
1750         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1751
1752         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1753
1754         if (!request_mem_region(xgifb_info->video_base,
1755                                 xgifb_info->video_size,
1756                                 "XGIfb FB")) {
1757                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1758                        xgifb_info->video_size);
1759                 dev_err(&pdev->dev,
1760                         "Fatal error: Unable to reserve frame buffer memory. Is there another framebuffer driver active?\n");
1761                 ret = -ENODEV;
1762                 goto error_disable;
1763         }
1764
1765         if (!request_mem_region(xgifb_info->mmio_base,
1766                                 xgifb_info->mmio_size,
1767                                 "XGIfb MMIO")) {
1768                 dev_err(&pdev->dev,
1769                         "Fatal error: Unable to reserve MMIO region\n");
1770                 ret = -ENODEV;
1771                 goto error_0;
1772         }
1773
1774         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1775         ioremap(xgifb_info->video_base, xgifb_info->video_size);
1776         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1777                                             xgifb_info->mmio_size);
1778
1779         dev_info(&pdev->dev,
1780                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1781                  (u64) xgifb_info->video_base,
1782                  xgifb_info->video_vbase,
1783                  xgifb_info->video_size / 1024);
1784
1785         dev_info(&pdev->dev,
1786                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1787                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1788                  xgifb_info->mmio_size / 1024);
1789
1790         pci_set_drvdata(pdev, xgifb_info);
1791         if (!XGIInitNew(pdev))
1792                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1793
1794         xgifb_info->mtrr = -1;
1795
1796         xgifb_info->hasVB = HASVB_NONE;
1797         if ((xgifb_info->chip == XG20) ||
1798             (xgifb_info->chip == XG27)) {
1799                 xgifb_info->hasVB = HASVB_NONE;
1800         } else if (xgifb_info->chip == XG21) {
1801                 CR38 = xgifb_reg_get(XGICR, 0x38);
1802                 if ((CR38&0xE0) == 0xC0)
1803                         xgifb_info->display2 = XGIFB_DISP_LCD;
1804                 else if ((CR38&0xE0) == 0x60)
1805                         xgifb_info->hasVB = HASVB_CHRONTEL;
1806                 else
1807                         xgifb_info->hasVB = HASVB_NONE;
1808         } else {
1809                 XGIfb_get_VB_type(xgifb_info);
1810         }
1811
1812         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1813
1814         hw_info->ulExternalChip = 0;
1815
1816         switch (xgifb_info->hasVB) {
1817         case HASVB_301:
1818                 reg = xgifb_reg_get(XGIPART4, 0x01);
1819                 if (reg >= 0xE0) {
1820                         hw_info->ujVBChipID = VB_CHIP_302LV;
1821                         dev_info(&pdev->dev,
1822                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1823                                  reg);
1824                 } else if (reg >= 0xD0) {
1825                         hw_info->ujVBChipID = VB_CHIP_301LV;
1826                         dev_info(&pdev->dev,
1827                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1828                                  reg);
1829                 } else {
1830                         hw_info->ujVBChipID = VB_CHIP_301;
1831                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1832                 }
1833                 break;
1834         case HASVB_302:
1835                 reg = xgifb_reg_get(XGIPART4, 0x01);
1836                 if (reg >= 0xE0) {
1837                         hw_info->ujVBChipID = VB_CHIP_302LV;
1838                         dev_info(&pdev->dev,
1839                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1840                                  reg);
1841                 } else if (reg >= 0xD0) {
1842                         hw_info->ujVBChipID = VB_CHIP_301LV;
1843                         dev_info(&pdev->dev,
1844                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1845                                  reg);
1846                 } else if (reg >= 0xB0) {
1847                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1848
1849                         hw_info->ujVBChipID = VB_CHIP_302B;
1850
1851                 } else {
1852                         hw_info->ujVBChipID = VB_CHIP_302;
1853                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1854                 }
1855                 break;
1856         case HASVB_LVDS:
1857                 hw_info->ulExternalChip = 0x1;
1858                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1859                 break;
1860         case HASVB_TRUMPION:
1861                 hw_info->ulExternalChip = 0x2;
1862                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1863                 break;
1864         case HASVB_CHRONTEL:
1865                 hw_info->ulExternalChip = 0x4;
1866                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1867                 break;
1868         case HASVB_LVDS_CHRONTEL:
1869                 hw_info->ulExternalChip = 0x5;
1870                 dev_info(&pdev->dev,
1871                          "LVDS transmitter and Chrontel TV encoder detected\n");
1872                 break;
1873         default:
1874                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1875                 break;
1876         }
1877
1878         if (xgifb_info->hasVB != HASVB_NONE)
1879                 XGIfb_detect_VB(xgifb_info);
1880         else if (xgifb_info->chip != XG21)
1881                 xgifb_info->display2 = XGIFB_DISP_NONE;
1882
1883         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1884                 if (!enable_dstn) {
1885                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1886                         reg &= 0x0f;
1887                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1888                 }
1889         }
1890
1891         xgifb_info->mode_idx = -1;
1892
1893         if (mode)
1894                 XGIfb_search_mode(xgifb_info, mode);
1895         else if (vesa != -1)
1896                 XGIfb_search_vesamode(xgifb_info, vesa);
1897
1898         if (xgifb_info->mode_idx >= 0)
1899                 xgifb_info->mode_idx =
1900                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1901
1902         if (xgifb_info->mode_idx < 0) {
1903                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1904                     xgifb_info->chip == XG21)
1905                         xgifb_info->mode_idx =
1906                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1907                 else
1908                         xgifb_info->mode_idx = DEFAULT_MODE;
1909         }
1910
1911         if (xgifb_info->mode_idx < 0) {
1912                 dev_err(&pdev->dev, "No supported video mode found\n");
1913                 ret = -EINVAL;
1914                 goto error_1;
1915         }
1916
1917         /* set default refresh rate */
1918         xgifb_info->refresh_rate = refresh_rate;
1919         if (xgifb_info->refresh_rate == 0)
1920                 xgifb_info->refresh_rate = 60;
1921         if (XGIfb_search_refresh_rate(xgifb_info,
1922                         xgifb_info->refresh_rate) == 0) {
1923                 xgifb_info->rate_idx = 1;
1924                 xgifb_info->refresh_rate = 60;
1925         }
1926
1927         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1928         xgifb_info->video_vwidth =
1929                 xgifb_info->video_width =
1930                         XGIbios_mode[xgifb_info->mode_idx].xres;
1931         xgifb_info->video_vheight =
1932                 xgifb_info->video_height =
1933                         XGIbios_mode[xgifb_info->mode_idx].yres;
1934         xgifb_info->org_x = xgifb_info->org_y = 0;
1935         xgifb_info->video_linelength =
1936                 xgifb_info->video_width *
1937                 (xgifb_info->video_bpp >> 3);
1938         switch (xgifb_info->video_bpp) {
1939         case 8:
1940                 xgifb_info->DstColor = 0x0000;
1941                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1942                 xgifb_info->video_cmap_len = 256;
1943                 break;
1944         case 16:
1945                 xgifb_info->DstColor = 0x8000;
1946                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1947                 xgifb_info->video_cmap_len = 16;
1948                 break;
1949         case 32:
1950                 xgifb_info->DstColor = 0xC000;
1951                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1952                 xgifb_info->video_cmap_len = 16;
1953                 break;
1954         default:
1955                 xgifb_info->video_cmap_len = 16;
1956                 pr_info("Unsupported depth %d\n",
1957                        xgifb_info->video_bpp);
1958                 break;
1959         }
1960
1961         pr_info("Default mode is %dx%dx%d (%dHz)\n",
1962                xgifb_info->video_width,
1963                xgifb_info->video_height,
1964                xgifb_info->video_bpp,
1965                xgifb_info->refresh_rate);
1966
1967         fb_info->var.red.length         = 8;
1968         fb_info->var.green.length       = 8;
1969         fb_info->var.blue.length        = 8;
1970         fb_info->var.activate           = FB_ACTIVATE_NOW;
1971         fb_info->var.height             = -1;
1972         fb_info->var.width              = -1;
1973         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
1974         fb_info->var.xres               = xgifb_info->video_width;
1975         fb_info->var.xres_virtual       = xgifb_info->video_width;
1976         fb_info->var.yres               = xgifb_info->video_height;
1977         fb_info->var.yres_virtual       = xgifb_info->video_height;
1978         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
1979
1980         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1981
1982         fb_info->var.pixclock = (u32) (1000000000 /
1983                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
1984                                 hw_info,
1985                                 XGIbios_mode[xgifb_info->mode_idx].mode_no));
1986
1987         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
1988                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
1989                 &fb_info->var.left_margin,
1990                 &fb_info->var.right_margin,
1991                 &fb_info->var.upper_margin,
1992                 &fb_info->var.lower_margin,
1993                 &fb_info->var.hsync_len,
1994                 &fb_info->var.vsync_len,
1995                 &fb_info->var.sync,
1996                 &fb_info->var.vmode)) {
1997
1998                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1999                     FB_VMODE_INTERLACED) {
2000                         fb_info->var.yres <<= 1;
2001                         fb_info->var.yres_virtual <<= 1;
2002                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2003                            FB_VMODE_DOUBLE) {
2004                         fb_info->var.pixclock >>= 1;
2005                         fb_info->var.yres >>= 1;
2006                         fb_info->var.yres_virtual >>= 1;
2007                 }
2008
2009         }
2010
2011         fb_info->flags = FBINFO_FLAG_DEFAULT;
2012         fb_info->screen_base = xgifb_info->video_vbase;
2013         fb_info->fbops = &XGIfb_ops;
2014         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2015         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2016
2017         fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2018
2019 #ifdef CONFIG_MTRR
2020         xgifb_info->mtrr = mtrr_add(xgifb_info->video_base,
2021                 xgifb_info->video_size, MTRR_TYPE_WRCOMB, 1);
2022         if (xgifb_info->mtrr >= 0)
2023                 dev_info(&pdev->dev, "Added MTRR\n");
2024 #endif
2025
2026         if (register_framebuffer(fb_info) < 0) {
2027                 ret = -EINVAL;
2028                 goto error_mtrr;
2029         }
2030
2031         dumpVGAReg();
2032
2033         return 0;
2034
2035 error_mtrr:
2036 #ifdef CONFIG_MTRR
2037         if (xgifb_info->mtrr >= 0)
2038                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2039                         xgifb_info->video_size);
2040 #endif /* CONFIG_MTRR */
2041 error_1:
2042         iounmap(xgifb_info->mmio_vbase);
2043         iounmap(xgifb_info->video_vbase);
2044         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2045 error_0:
2046         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2047 error_disable:
2048         pci_disable_device(pdev);
2049 error:
2050         framebuffer_release(fb_info);
2051         return ret;
2052 }
2053
2054 /*****************************************************/
2055 /*                PCI DEVICE HANDLING                */
2056 /*****************************************************/
2057
2058 static void xgifb_remove(struct pci_dev *pdev)
2059 {
2060         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2061         struct fb_info *fb_info = xgifb_info->fb_info;
2062
2063         unregister_framebuffer(fb_info);
2064 #ifdef CONFIG_MTRR
2065         if (xgifb_info->mtrr >= 0)
2066                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2067                         xgifb_info->video_size);
2068 #endif /* CONFIG_MTRR */
2069         iounmap(xgifb_info->mmio_vbase);
2070         iounmap(xgifb_info->video_vbase);
2071         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2072         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2073         pci_disable_device(pdev);
2074         framebuffer_release(fb_info);
2075 }
2076
2077 static struct pci_driver xgifb_driver = {
2078         .name = "xgifb",
2079         .id_table = xgifb_pci_table,
2080         .probe = xgifb_probe,
2081         .remove = xgifb_remove
2082 };
2083
2084
2085
2086 /*****************************************************/
2087 /*                      MODULE                       */
2088 /*****************************************************/
2089
2090 module_param(mode, charp, 0);
2091 MODULE_PARM_DESC(mode,
2092         "Selects the desired default display mode in the format XxYxDepth (eg. 1024x768x16).");
2093
2094 module_param(forcecrt2type, charp, 0);
2095 MODULE_PARM_DESC(forcecrt2type,
2096         "Force the second display output type. Possible values are NONE, LCD, TV, VGA, SVIDEO or COMPOSITE.");
2097
2098 module_param(vesa, int, 0);
2099 MODULE_PARM_DESC(vesa,
2100         "Selects the desired default display mode by VESA mode number (eg. 0x117).");
2101
2102 module_param(filter, int, 0);
2103 MODULE_PARM_DESC(filter,
2104         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). Possible values 0-7. Default: [no filter]).");
2105
2106 static int __init xgifb_init(void)
2107 {
2108         char *option = NULL;
2109
2110         if (forcecrt2type != NULL)
2111                 XGIfb_search_crt2type(forcecrt2type);
2112         if (fb_get_options("xgifb", &option))
2113                 return -ENODEV;
2114         XGIfb_setup(option);
2115
2116         return pci_register_driver(&xgifb_driver);
2117 }
2118
2119 static void __exit xgifb_remove_module(void)
2120 {
2121         pci_unregister_driver(&xgifb_driver);
2122         pr_debug("Module unloaded\n");
2123 }
2124
2125 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2126 MODULE_LICENSE("GPL");
2127 MODULE_AUTHOR("XGITECH , Others");
2128 module_init(xgifb_init);
2129 module_exit(xgifb_remove_module);