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, unsigned char rateindex)
  64 {
  65         unsigned short ModeNo = modeno;
  66         unsigned short ModeIdIndex = 0, ClockIndex = 0;
  67         unsigned short RefreshRateTableIndex = 0;
  68         int Clock;
  69         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  70
  71         XGI_SearchModeID(ModeNo, &ModeIdIndex, XGI_Pr);
  72
  73         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  74                         ModeIdIndex, XGI_Pr);
  75
  76         ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
  77
  78         Clock = XGI_VCLKData[ClockIndex].CLOCK * 1000;
  79
  80         return Clock;
  81 }
  82
  83 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
  84                 struct xgi_hw_device_info *HwDeviceExtension,
  85                 unsigned char modeno, unsigned char rateindex,
  86                 u32 *left_margin, u32 *right_margin, u32 *upper_margin,
  87                 u32 *lower_margin, u32 *hsync_len, u32 *vsync_len, u32 *sync,
  88                 u32 *vmode)
  89 {
  90         unsigned short ModeNo = modeno;
  91         unsigned short ModeIdIndex, index = 0;
  92         unsigned short RefreshRateTableIndex = 0;
  93
  94         unsigned short VRE, VBE, VRS, VDE;
  95         unsigned short HRE, HBE, HRS, HDE;
  96         unsigned char sr_data, cr_data, cr_data2;
  97         int B, C, D, F, temp, j;
  98         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  99         if (!XGI_SearchModeID(ModeNo, &ModeIdIndex, XGI_Pr))
 100                 return 0;
 101         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 102                         ModeIdIndex, XGI_Pr);
 103         index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 104
 105         sr_data = XGI_CRT1Table[index].CR[5];
 106
 107         HDE = (XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3);
 108
 109         cr_data = XGI_CRT1Table[index].CR[3];
 110
 111         /* Horizontal retrace (=sync) start */
 112         HRS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0xC0) << 2);
 113         F = HRS - HDE - 3;
 114
 115         sr_data = XGI_CRT1Table[index].CR[6];
 116
 117         cr_data = XGI_CRT1Table[index].CR[2];
 118
 119         cr_data2 = XGI_CRT1Table[index].CR[4];
 120
 121         /* Horizontal blank end */
 122         HBE = (cr_data & 0x1f) | ((unsigned short) (cr_data2 & 0x80) >> 2)
 123                         | ((unsigned short) (sr_data & 0x03) << 6);
 124
 125         /* Horizontal retrace (=sync) end */
 126         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 127
 128         temp = HBE - ((HDE - 1) & 255);
 129         B = (temp > 0) ? temp : (temp + 256);
 130
 131         temp = HRE - ((HDE + F + 3) & 63);
 132         C = (temp > 0) ? temp : (temp + 64);
 133
 134         D = B - F - C;
 135
 136         *left_margin = D * 8;
 137         *right_margin = F * 8;
 138         *hsync_len = C * 8;
 139
 140         sr_data = XGI_CRT1Table[index].CR[14];
 141
 142         cr_data2 = XGI_CRT1Table[index].CR[9];
 143
 144         VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes;
 145
 146         cr_data = XGI_CRT1Table[index].CR[10];
 147
 148         /* Vertical retrace (=sync) start */
 149         VRS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x04) << 6)
 150                         | ((unsigned short) (cr_data2 & 0x80) << 2)
 151                         | ((unsigned short) (sr_data & 0x08) << 7);
 152         F = VRS + 1 - VDE;
 153
 154         cr_data = XGI_CRT1Table[index].CR[13];
 155
 156         /* Vertical blank end */
 157         VBE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x10) << 4);
 158         temp = VBE - ((VDE - 1) & 511);
 159         B = (temp > 0) ? temp : (temp + 512);
 160
 161         cr_data = XGI_CRT1Table[index].CR[11];
 162
 163         /* Vertical retrace (=sync) end */
 164         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 165         temp = VRE - ((VDE + F - 1) & 31);
 166         C = (temp > 0) ? temp : (temp + 32);
 167
 168         D = B - F - C;
 169
 170         *upper_margin = D;
 171         *lower_margin = F;
 172         *vsync_len = C;
 173
 174         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 175                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 176         else
 177                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 178
 179         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 180                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 181         else
 182                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 183
 184         *vmode = FB_VMODE_NONINTERLACED;
 185         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080)
 186                 *vmode = FB_VMODE_INTERLACED;
 187         else {
 188                 j = 0;
 189                 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
 190                         if (XGI330_EModeIDTable[j].Ext_ModeID ==
 191                             XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
 192                                 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
 193                                     DoubleScanMode) {
 194                                         *vmode = FB_VMODE_DOUBLE;
 195                                 }
 196                                 break;
 197                         }
 198                         j++;
 199                 }
 200         }
 201
 202         return 1;
 203 }
 204
 205 void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 206 {
 207         XGI_Pr->P3c4 = BaseAddr + 0x14;
 208         XGI_Pr->P3d4 = BaseAddr + 0x24;
 209         XGI_Pr->P3c0 = BaseAddr + 0x10;
 210         XGI_Pr->P3ce = BaseAddr + 0x1e;
 211         XGI_Pr->P3c2 = BaseAddr + 0x12;
 212         XGI_Pr->P3ca = BaseAddr + 0x1a;
 213         XGI_Pr->P3c6 = BaseAddr + 0x16;
 214         XGI_Pr->P3c7 = BaseAddr + 0x17;
 215         XGI_Pr->P3c8 = BaseAddr + 0x18;
 216         XGI_Pr->P3c9 = BaseAddr + 0x19;
 217         XGI_Pr->P3da = BaseAddr + 0x2A;
 218         /* Digital video interface registers (LCD) */
 219         XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
 220         /* 301 TV Encoder registers */
 221         XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
 222         /* 301 Macrovision registers */
 223         XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
 224         /* 301 VGA2 (and LCD) registers */
 225         XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
 226         /* 301 palette address port registers */
 227         XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
 228
 229 }
 230
 231 /* ------------------ Internal helper routines ----------------- */
 232
 233 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 234 {
 235         int i = 0;
 236
 237         while ((XGIbios_mode[i].mode_no != 0)
 238                && (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
 239                 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE)
 240                     && (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE)
 241                     && (XGIbios_mode[i].bpp == 8)) {
 242                         return i;
 243                 }
 244                 i++;
 245         }
 246
 247         return -1;
 248 }
 249
 250 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 251                               const char *name)
 252 {
 253         unsigned int xres;
 254         unsigned int yres;
 255         unsigned int bpp;
 256         int i;
 257
 258         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 259                 goto invalid_mode;
 260
 261         if (bpp == 24)
 262                 bpp = 32; /* That's for people who mix up color and fb depth. */
 263
 264         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 265                 if (XGIbios_mode[i].xres == xres &&
 266                     XGIbios_mode[i].yres == yres &&
 267                     XGIbios_mode[i].bpp == bpp) {
 268                         xgifb_info->mode_idx = i;
 269                         return;
 270                 }
 271 invalid_mode:
 272         pr_info("Invalid mode '%s'\n", name);
 273 }
 274
 275 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 276                                   unsigned int vesamode)
 277 {
 278         int i = 0;
 279
 280         if (vesamode == 0)
 281                 goto invalid;
 282
 283         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 284
 285         while (XGIbios_mode[i].mode_no != 0) {
 286                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 287                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 288                         xgifb_info->mode_idx = i;
 289                         return;
 290                 }
 291                 i++;
 292         }
 293
 294 invalid:
 295         pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 296 }
 297
 298 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 299 {
 300         u16 xres, yres;
 301         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 302         unsigned long required_mem;
 303
 304         if (xgifb_info->chip == XG21) {
 305                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 306                         xres = xgifb_info->lvds_data.LVDSHDE;
 307                         yres = xgifb_info->lvds_data.LVDSVDE;
 308                         if (XGIbios_mode[myindex].xres > xres)
 309                                 return -1;
 310                         if (XGIbios_mode[myindex].yres > yres)
 311                                 return -1;
 312                         if ((XGIbios_mode[myindex].xres < xres) &&
 313                             (XGIbios_mode[myindex].yres < yres)) {
 314                                 if (XGIbios_mode[myindex].bpp > 8)
 315                                         return -1;
 316                         }
 317
 318                 }
 319                 goto check_memory;
 320
 321         }
 322
 323         /* FIXME: for now, all is valid on XG27 */
 324         if (xgifb_info->chip == XG27)
 325                 goto check_memory;
 326
 327         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 328                 return -1;
 329
 330         switch (xgifb_info->display2) {
 331         case XGIFB_DISP_LCD:
 332                 switch (hw_info->ulCRT2LCDType) {
 333                 case LCD_640x480:
 334                         xres = 640;
 335                         yres = 480;
 336                         break;
 337                 case LCD_800x600:
 338                         xres = 800;
 339                         yres = 600;
 340                         break;
 341                 case LCD_1024x600:
 342                         xres = 1024;
 343                         yres = 600;
 344                         break;
 345                 case LCD_1024x768:
 346                         xres = 1024;
 347                         yres = 768;
 348                         break;
 349                 case LCD_1152x768:
 350                         xres = 1152;
 351                         yres = 768;
 352                         break;
 353                 case LCD_1280x960:
 354                         xres = 1280;
 355                         yres = 960;
 356                         break;
 357                 case LCD_1280x768:
 358                         xres = 1280;
 359                         yres = 768;
 360                         break;
 361                 case LCD_1280x1024:
 362                         xres = 1280;
 363                         yres = 1024;
 364                         break;
 365                 case LCD_1400x1050:
 366                         xres = 1400;
 367                         yres = 1050;
 368                         break;
 369                 case LCD_1600x1200:
 370                         xres = 1600;
 371                         yres = 1200;
 372                         break;
 373                 default:
 374                         xres = 0;
 375                         yres = 0;
 376                         break;
 377                 }
 378                 if (XGIbios_mode[myindex].xres > xres)
 379                         return -1;
 380                 if (XGIbios_mode[myindex].yres > yres)
 381                         return -1;
 382                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 383                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 384                         switch (XGIbios_mode[myindex].xres) {
 385                         case 512:
 386                                 if (XGIbios_mode[myindex].yres != 512)
 387                                         return -1;
 388                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 389                                         return -1;
 390                                 break;
 391                         case 640:
 392                                 if ((XGIbios_mode[myindex].yres != 400)
 393                                                 && (XGIbios_mode[myindex].yres
 394                                                                 != 480))
 395                                         return -1;
 396                                 break;
 397                         case 800:
 398                                 if (XGIbios_mode[myindex].yres != 600)
 399                                         return -1;
 400                                 break;
 401                         case 1024:
 402                                 if ((XGIbios_mode[myindex].yres != 600) &&
 403                                     (XGIbios_mode[myindex].yres != 768))
 404                                         return -1;
 405                                 if ((XGIbios_mode[myindex].yres == 600) &&
 406                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 407                                         return -1;
 408                                 break;
 409                         case 1152:
 410                                 if ((XGIbios_mode[myindex].yres) != 768)
 411                                         return -1;
 412                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 413                                         return -1;
 414                                 break;
 415                         case 1280:
 416                                 if ((XGIbios_mode[myindex].yres != 768) &&
 417                                     (XGIbios_mode[myindex].yres != 1024))
 418                                         return -1;
 419                                 if ((XGIbios_mode[myindex].yres == 768) &&
 420                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 421                                         return -1;
 422                                 break;
 423                         case 1400:
 424                                 if (XGIbios_mode[myindex].yres != 1050)
 425                                         return -1;
 426                                 break;
 427                         case 1600:
 428                                 if (XGIbios_mode[myindex].yres != 1200)
 429                                         return -1;
 430                                 break;
 431                         default:
 432                                 return -1;
 433                         }
 434                 } else {
 435                         switch (XGIbios_mode[myindex].xres) {
 436                         case 512:
 437                                 if (XGIbios_mode[myindex].yres != 512)
 438                                         return -1;
 439                                 break;
 440                         case 640:
 441                                 if ((XGIbios_mode[myindex].yres != 400) &&
 442                                     (XGIbios_mode[myindex].yres != 480))
 443                                         return -1;
 444                                 break;
 445                         case 800:
 446                                 if (XGIbios_mode[myindex].yres != 600)
 447                                         return -1;
 448                                 break;
 449                         case 1024:
 450                                 if (XGIbios_mode[myindex].yres != 768)
 451                                         return -1;
 452                                 break;
 453                         case 1280:
 454                                 if ((XGIbios_mode[myindex].yres != 960) &&
 455                                     (XGIbios_mode[myindex].yres != 1024))
 456                                         return -1;
 457                                 if (XGIbios_mode[myindex].yres == 960) {
 458                                         if (hw_info->ulCRT2LCDType ==
 459                                             LCD_1400x1050)
 460                                                 return -1;
 461                                 }
 462                                 break;
 463                         case 1400:
 464                                 if (XGIbios_mode[myindex].yres != 1050)
 465                                         return -1;
 466                                 break;
 467                         case 1600:
 468                                 if (XGIbios_mode[myindex].yres != 1200)
 469                                         return -1;
 470                                 break;
 471                         default:
 472                                 return -1;
 473                         }
 474                 }
 475                 break;
 476         case XGIFB_DISP_TV:
 477                 switch (XGIbios_mode[myindex].xres) {
 478                 case 512:
 479                 case 640:
 480                 case 800:
 481                         break;
 482                 case 720:
 483                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 484                                 if (XGIbios_mode[myindex].yres != 480)
 485                                         return -1;
 486                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 487                                 if (XGIbios_mode[myindex].yres != 576)
 488                                         return -1;
 489                         }
 490                         /* LVDS/CHRONTEL does not support 720 */
 491                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 492                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 493                                 return -1;
 494                         }
 495                         break;
 496                 case 1024:
 497                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 498                                 if (XGIbios_mode[myindex].bpp == 32)
 499                                         return -1;
 500                         }
 501                         break;
 502                 default:
 503                         return -1;
 504                 }
 505                 break;
 506         case XGIFB_DISP_CRT:
 507                 if (XGIbios_mode[myindex].xres > 1280)
 508                         return -1;
 509                 break;
 510         case XGIFB_DISP_NONE:
 511                 break;
 512         }
 513
 514 check_memory:
 515         required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
 516                        XGIbios_mode[myindex].bpp / 8;
 517         if (required_mem > xgifb_info->video_size)
 518                 return -1;
 519         return myindex;
 520
 521 }
 522
 523 static void XGIfb_search_crt2type(const char *name)
 524 {
 525         int i = 0;
 526
 527         if (name == NULL)
 528                 return;
 529
 530         while (XGI_crt2type[i].type_no != -1) {
 531                 if (!strcmp(name, XGI_crt2type[i].name)) {
 532                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 533                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 534                         break;
 535                 }
 536                 i++;
 537         }
 538         if (XGIfb_crt2type < 0)
 539                 pr_info("Invalid CRT2 type: %s\n", name);
 540 }
 541
 542 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 543                                     unsigned int rate)
 544 {
 545         u16 xres, yres;
 546         int i = 0;
 547
 548         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 549         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 550
 551         xgifb_info->rate_idx = 0;
 552         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 553                 if ((XGIfb_vrate[i].xres == xres) &&
 554                     (XGIfb_vrate[i].yres == yres)) {
 555                         if (XGIfb_vrate[i].refresh == rate) {
 556                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 557                                 break;
 558                         } else if (XGIfb_vrate[i].refresh > rate) {
 559                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 560                                         pr_debug("Adjusting rate from %d up to %d\n",
 561                                                  rate, XGIfb_vrate[i].refresh);
 562                                         xgifb_info->rate_idx =
 563                                                 XGIfb_vrate[i].idx;
 564                                         xgifb_info->refresh_rate =
 565                                                 XGIfb_vrate[i].refresh;
 566                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 567                                                 <= 2) && (XGIfb_vrate[i].idx
 568                                                 != 1)) {
 569                                         pr_debug("Adjusting rate from %d down to %d\n",
 570                                                  rate,
 571                                                  XGIfb_vrate[i-1].refresh);
 572                                         xgifb_info->rate_idx =
 573                                                 XGIfb_vrate[i - 1].idx;
 574                                         xgifb_info->refresh_rate =
 575                                                 XGIfb_vrate[i - 1].refresh;
 576                                 }
 577                                 break;
 578                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 579                                 pr_debug("Adjusting rate from %d down to %d\n",
 580                                          rate, XGIfb_vrate[i].refresh);
 581                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 582                                 break;
 583                         }
 584                 }
 585                 i++;
 586         }
 587         if (xgifb_info->rate_idx > 0) {
 588                 return xgifb_info->rate_idx;
 589         } else {
 590                 pr_info("Unsupported rate %d for %dx%d\n",
 591                        rate, xres, yres);
 592                 return 0;
 593         }
 594 }
 595
 596 static void XGIfb_search_tvstd(const char *name)
 597 {
 598         int i = 0;
 599
 600         if (name == NULL)
 601                 return;
 602
 603         while (XGI_tvtype[i].type_no != -1) {
 604                 if (!strcmp(name, XGI_tvtype[i].name)) {
 605                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 606                         break;
 607                 }
 608                 i++;
 609         }
 610 }
 611
 612 /* ----------- FBDev related routines for all series ----------- */
 613
 614 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 615                              struct fb_var_screeninfo *var)
 616 {
 617         switch (var->bits_per_pixel) {
 618         case 8:
 619                 var->red.offset = var->green.offset = var->blue.offset = 0;
 620                 var->red.length = var->green.length = var->blue.length = 6;
 621                 xgifb_info->video_cmap_len = 256;
 622                 break;
 623         case 16:
 624                 var->red.offset = 11;
 625                 var->red.length = 5;
 626                 var->green.offset = 5;
 627                 var->green.length = 6;
 628                 var->blue.offset = 0;
 629                 var->blue.length = 5;
 630                 var->transp.offset = 0;
 631                 var->transp.length = 0;
 632                 xgifb_info->video_cmap_len = 16;
 633                 break;
 634         case 32:
 635                 var->red.offset = 16;
 636                 var->red.length = 8;
 637                 var->green.offset = 8;
 638                 var->green.length = 8;
 639                 var->blue.offset = 0;
 640                 var->blue.length = 8;
 641                 var->transp.offset = 24;
 642                 var->transp.length = 8;
 643                 xgifb_info->video_cmap_len = 16;
 644                 break;
 645         }
 646 }
 647
 648 /* --------------------- SetMode routines ------------------------- */
 649
 650 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 651 {
 652         u8 cr30 = 0, cr31 = 0;
 653
 654         cr31 = xgifb_reg_get(XGICR, 0x31);
 655         cr31 &= ~0x60;
 656
 657         switch (xgifb_info->display2) {
 658         case XGIFB_DISP_CRT:
 659                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 660                 cr31 |= SIS_DRIVER_MODE;
 661                 break;
 662         case XGIFB_DISP_LCD:
 663                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 664                 cr31 |= SIS_DRIVER_MODE;
 665                 break;
 666         case XGIFB_DISP_TV:
 667                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 668                         cr30 = (SIS_VB_OUTPUT_HIVISION
 669                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 670                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 671                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 672                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 673                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 674                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 675                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 676                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 677                         cr30 = (SIS_VB_OUTPUT_SCART
 678                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 679                 cr31 |= SIS_DRIVER_MODE;
 680
 681                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 682                         cr31 |= 0x01;
 683                 else
 684                         cr31 &= ~0x01;
 685                 break;
 686         default: /* disable CRT2 */
 687                 cr30 = 0x00;
 688                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 689         }
 690
 691         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 692         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 693         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 694                                                 (xgifb_info->rate_idx & 0x0F));
 695 }
 696
 697 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 698 {
 699         u8 reg;
 700         unsigned char doit = 1;
 701
 702         if (xgifb_info->video_bpp == 8) {
 703                 /*
 704                  * We can't switch off CRT1 on LVDS/Chrontel
 705                  * in 8bpp Modes
 706                  */
 707                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 708                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 709                         doit = 0;
 710                 }
 711                 /*
 712                  * We can't switch off CRT1 on 301B-DH
 713                  * in 8bpp Modes if using LCD
 714                  */
 715                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 716                         doit = 0;
 717         }
 718
 719         /* We can't switch off CRT1 if bridge is in slave mode */
 720         if (xgifb_info->hasVB != HASVB_NONE) {
 721                 reg = xgifb_reg_get(XGIPART1, 0x00);
 722
 723                 if ((reg & 0x50) == 0x10)
 724                         doit = 0;
 725
 726         } else {
 727                 XGIfb_crt1off = 0;
 728         }
 729
 730         reg = xgifb_reg_get(XGICR, 0x17);
 731         if ((XGIfb_crt1off) && (doit))
 732                 reg &= ~0x80;
 733         else
 734                 reg |= 0x80;
 735         xgifb_reg_set(XGICR, 0x17, reg);
 736
 737         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 738
 739         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 740             xgifb_info->hasVB == HASVB_301) {
 741
 742                 reg = xgifb_reg_get(XGIPART4, 0x01);
 743
 744                 if (reg < 0xB0) { /* Set filter for XGI301 */
 745                         int filter_tb;
 746
 747                         switch (xgifb_info->video_width) {
 748                         case 320:
 749                                 filter_tb = (xgifb_info->TV_type ==
 750                                              TVMODE_NTSC) ? 4 : 12;
 751                                 break;
 752                         case 640:
 753                                 filter_tb = (xgifb_info->TV_type ==
 754                                              TVMODE_NTSC) ? 5 : 13;
 755                                 break;
 756                         case 720:
 757                                 filter_tb = (xgifb_info->TV_type ==
 758                                              TVMODE_NTSC) ? 6 : 14;
 759                                 break;
 760                         case 800:
 761                                 filter_tb = (xgifb_info->TV_type ==
 762                                              TVMODE_NTSC) ? 7 : 15;
 763                                 break;
 764                         default:
 765                                 filter_tb = 0;
 766                                 filter = -1;
 767                                 break;
 768                         }
 769                         xgifb_reg_or(XGIPART1,
 770                                      SIS_CRT2_WENABLE_315,
 771                                      0x01);
 772
 773                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 774
 775                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 776
 777                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 778
 779                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 780
 781                                 } else if (xgifb_info->TV_plug
 782                                                 == TVPLUG_COMPOSITE) {
 783
 784                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 785
 786                                         switch (xgifb_info->video_width) {
 787                                         case 640:
 788                                                 xgifb_reg_set(XGIPART2,
 789                                                               0x35,
 790                                                               0xEB);
 791                                                 xgifb_reg_set(XGIPART2,
 792                                                               0x36,
 793                                                               0x04);
 794                                                 xgifb_reg_set(XGIPART2,
 795                                                               0x37,
 796                                                               0x25);
 797                                                 xgifb_reg_set(XGIPART2,
 798                                                               0x38,
 799                                                               0x18);
 800                                                 break;
 801                                         case 720:
 802                                                 xgifb_reg_set(XGIPART2,
 803                                                               0x35,
 804                                                               0xEE);
 805                                                 xgifb_reg_set(XGIPART2,
 806                                                               0x36,
 807                                                               0x0C);
 808                                                 xgifb_reg_set(XGIPART2,
 809                                                               0x37,
 810                                                               0x22);
 811                                                 xgifb_reg_set(XGIPART2,
 812                                                               0x38,
 813                                                               0x08);
 814                                                 break;
 815                                         case 800:
 816                                                 xgifb_reg_set(XGIPART2,
 817                                                               0x35,
 818                                                               0xEB);
 819                                                 xgifb_reg_set(XGIPART2,
 820                                                               0x36,
 821                                                               0x15);
 822                                                 xgifb_reg_set(XGIPART2,
 823                                                               0x37,
 824                                                               0x25);
 825                                                 xgifb_reg_set(XGIPART2,
 826                                                               0x38,
 827                                                               0xF6);
 828                                                 break;
 829                                         }
 830                                 }
 831
 832                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 833
 834                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 835
 836                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 837
 838                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 839
 840                                 } else if (xgifb_info->TV_plug
 841                                                 == TVPLUG_COMPOSITE) {
 842
 843                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 844
 845                                         switch (xgifb_info->video_width) {
 846                                         case 640:
 847                                                 xgifb_reg_set(XGIPART2,
 848                                                               0x35,
 849                                                               0xF1);
 850                                                 xgifb_reg_set(XGIPART2,
 851                                                               0x36,
 852                                                               0xF7);
 853                                                 xgifb_reg_set(XGIPART2,
 854                                                               0x37,
 855                                                               0x1F);
 856                                                 xgifb_reg_set(XGIPART2,
 857                                                               0x38,
 858                                                               0x32);
 859                                                 break;
 860                                         case 720:
 861                                                 xgifb_reg_set(XGIPART2,
 862                                                               0x35,
 863                                                               0xF3);
 864                                                 xgifb_reg_set(XGIPART2,
 865                                                               0x36,
 866                                                               0x00);
 867                                                 xgifb_reg_set(XGIPART2,
 868                                                               0x37,
 869                                                               0x1D);
 870                                                 xgifb_reg_set(XGIPART2,
 871                                                               0x38,
 872                                                               0x20);
 873                                                 break;
 874                                         case 800:
 875                                                 xgifb_reg_set(XGIPART2,
 876                                                               0x35,
 877                                                               0xFC);
 878                                                 xgifb_reg_set(XGIPART2,
 879                                                               0x36,
 880                                                               0xFB);
 881                                                 xgifb_reg_set(XGIPART2,
 882                                                               0x37,
 883                                                               0x14);
 884                                                 xgifb_reg_set(XGIPART2,
 885                                                               0x38,
 886                                                               0x2A);
 887                                                 break;
 888                                         }
 889                                 }
 890                         }
 891
 892                         if ((filter >= 0) && (filter <= 7)) {
 893                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 894                                          filter_tb, filter,
 895                                          4, XGI_TV_filter[filter_tb].
 896                                                    filter[filter]);
 897                                 xgifb_reg_set(
 898                                         XGIPART2,
 899                                         0x35,
 900                                         (XGI_TV_filter[filter_tb].
 901                                                 filter[filter][0]));
 902                                 xgifb_reg_set(
 903                                         XGIPART2,
 904                                         0x36,
 905                                         (XGI_TV_filter[filter_tb].
 906                                                 filter[filter][1]));
 907                                 xgifb_reg_set(
 908                                         XGIPART2,
 909                                         0x37,
 910                                         (XGI_TV_filter[filter_tb].
 911                                                 filter[filter][2]));
 912                                 xgifb_reg_set(
 913                                         XGIPART2,
 914                                         0x38,
 915                                         (XGI_TV_filter[filter_tb].
 916                                                 filter[filter][3]));
 917                         }
 918                 }
 919         }
 920 }
 921
 922 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 923                 struct fb_info *info)
 924 {
 925         struct xgifb_video_info *xgifb_info = info->par;
 926         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 927         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 928                         + var->hsync_len;
 929         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 930                         + var->vsync_len;
 931 #if defined(__powerpc__)
 932         u8 cr_data;
 933 #endif
 934         unsigned int drate = 0, hrate = 0;
 935         int found_mode = 0;
 936         int old_mode;
 937
 938         info->var.xres_virtual = var->xres_virtual;
 939         info->var.yres_virtual = var->yres_virtual;
 940         info->var.bits_per_pixel = var->bits_per_pixel;
 941
 942         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 943                 vtotal <<= 1;
 944         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 945                 vtotal <<= 2;
 946
 947         if (!htotal || !vtotal) {
 948                 pr_debug("Invalid 'var' information\n");
 949                 return -EINVAL;
 950         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 951                         var->pixclock, htotal, vtotal);
 952
 953         if (var->pixclock && htotal && vtotal) {
 954                 drate = 1000000000 / var->pixclock;
 955                 hrate = (drate * 1000) / htotal;
 956                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 957                                 / vtotal);
 958         } else {
 959                 xgifb_info->refresh_rate = 60;
 960         }
 961
 962         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 963                var->xres,
 964                var->yres,
 965                var->bits_per_pixel,
 966                xgifb_info->refresh_rate);
 967
 968         old_mode = xgifb_info->mode_idx;
 969         xgifb_info->mode_idx = 0;
 970
 971         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
 972                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
 973                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
 974                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
 975                     (XGIbios_mode[xgifb_info->mode_idx].bpp
 976                                                 == var->bits_per_pixel)) {
 977                         found_mode = 1;
 978                         break;
 979                 }
 980                 xgifb_info->mode_idx++;
 981         }
 982
 983         if (found_mode)
 984                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
 985                                                         xgifb_info->mode_idx);
 986         else
 987                 xgifb_info->mode_idx = -1;
 988
 989         if (xgifb_info->mode_idx < 0) {
 990                 pr_err("Mode %dx%dx%d not supported\n",
 991                        var->xres, var->yres, var->bits_per_pixel);
 992                 xgifb_info->mode_idx = old_mode;
 993                 return -EINVAL;
 994         }
 995
 996         if (XGIfb_search_refresh_rate(xgifb_info,
 997                                       xgifb_info->refresh_rate) == 0) {
 998                 xgifb_info->rate_idx = 1;
 999                 xgifb_info->refresh_rate = 60;
1000         }
1001
1002         if (isactive) {
1003
1004                 XGIfb_pre_setmode(xgifb_info);
1005                 if (XGISetModeNew(xgifb_info, hw_info,
1006                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1007                                         == 0) {
1008                         pr_err("Setting mode[0x%x] failed\n",
1009                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1010                         return -EINVAL;
1011                 }
1012                 info->fix.line_length = ((info->var.xres_virtual
1013                                 * info->var.bits_per_pixel) >> 6);
1014
1015                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1016
1017                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1018                 xgifb_reg_set(XGISR,
1019                               0x0E,
1020                               (info->fix.line_length & 0xff00) >> 8);
1021
1022                 XGIfb_post_setmode(xgifb_info);
1023
1024                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1025                          XGIbios_mode[xgifb_info->mode_idx].xres,
1026                          XGIbios_mode[xgifb_info->mode_idx].yres,
1027                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1028                          xgifb_info->refresh_rate);
1029
1030                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1031                 xgifb_info->video_vwidth = info->var.xres_virtual;
1032                 xgifb_info->video_width =
1033                         XGIbios_mode[xgifb_info->mode_idx].xres;
1034                 xgifb_info->video_vheight = info->var.yres_virtual;
1035                 xgifb_info->video_height =
1036                         XGIbios_mode[xgifb_info->mode_idx].yres;
1037                 xgifb_info->org_x = xgifb_info->org_y = 0;
1038                 xgifb_info->video_linelength = info->var.xres_virtual
1039                                 * (xgifb_info->video_bpp >> 3);
1040                 switch (xgifb_info->video_bpp) {
1041                 case 8:
1042                         xgifb_info->DstColor = 0x0000;
1043                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1044                         xgifb_info->video_cmap_len = 256;
1045 #if defined(__powerpc__)
1046                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1047                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1048 #endif
1049                         break;
1050                 case 16:
1051                         xgifb_info->DstColor = 0x8000;
1052                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1053 #if defined(__powerpc__)
1054                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1055                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1056 #endif
1057                         xgifb_info->video_cmap_len = 16;
1058                         break;
1059                 case 32:
1060                         xgifb_info->DstColor = 0xC000;
1061                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1062                         xgifb_info->video_cmap_len = 16;
1063 #if defined(__powerpc__)
1064                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1065                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1066 #endif
1067                         break;
1068                 default:
1069                         xgifb_info->video_cmap_len = 16;
1070                         pr_err("Unsupported depth %d\n",
1071                                xgifb_info->video_bpp);
1072                         break;
1073                 }
1074         }
1075         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1076
1077         dumpVGAReg();
1078         return 0;
1079 }
1080
1081 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1082 {
1083         struct xgifb_video_info *xgifb_info = info->par;
1084         unsigned int base;
1085
1086         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1087
1088         /* calculate base bpp dep. */
1089         switch (info->var.bits_per_pixel) {
1090         case 16:
1091                 base >>= 1;
1092                 break;
1093         case 32:
1094                 break;
1095         case 8:
1096         default:
1097                 base >>= 2;
1098                 break;
1099         }
1100
1101         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1102
1103         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1104         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1105         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1106         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1107         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1108
1109         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1110                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1111                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1112                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1113                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1114                 xgifb_reg_and_or(XGIPART1,
1115                                  0x02,
1116                                  0x7F,
1117                                  ((base >> 24) & 0x01) << 7);
1118         }
1119         return 0;
1120 }
1121
1122 static int XGIfb_open(struct fb_info *info, int user)
1123 {
1124         return 0;
1125 }
1126
1127 static int XGIfb_release(struct fb_info *info, int user)
1128 {
1129         return 0;
1130 }
1131
1132 /* similar to sisfb_get_cmap_len */
1133 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1134 {
1135         return (var->bits_per_pixel == 8) ? 256 : 16;
1136 }
1137
1138 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1139                 unsigned blue, unsigned transp, struct fb_info *info)
1140 {
1141         struct xgifb_video_info *xgifb_info = info->par;
1142
1143         if (regno >= XGIfb_get_cmap_len(&info->var))
1144                 return 1;
1145
1146         switch (info->var.bits_per_pixel) {
1147         case 8:
1148                 outb(regno, XGIDACA);
1149                 outb((red >> 10), XGIDACD);
1150                 outb((green >> 10), XGIDACD);
1151                 outb((blue >> 10), XGIDACD);
1152                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1153                         outb(regno, XGIDAC2A);
1154                         outb((red >> 8), XGIDAC2D);
1155                         outb((green >> 8), XGIDAC2D);
1156                         outb((blue >> 8), XGIDAC2D);
1157                 }
1158                 break;
1159         case 16:
1160                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1161                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1162                                 >> 11);
1163                 break;
1164         case 32:
1165                 red >>= 8;
1166                 green >>= 8;
1167                 blue >>= 8;
1168                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1169                                 << 8) | (blue);
1170                 break;
1171         }
1172         return 0;
1173 }
1174
1175 /* ----------- FBDev related routines for all series ---------- */
1176
1177 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1178                 struct fb_info *info)
1179 {
1180         struct xgifb_video_info *xgifb_info = info->par;
1181
1182         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1183
1184         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1185
1186         /* if register_framebuffer has been called, we must lock */
1187         if (atomic_read(&info->count))
1188                 mutex_lock(&info->mm_lock);
1189
1190         fix->smem_start = xgifb_info->video_base;
1191         fix->smem_len = xgifb_info->video_size;
1192
1193         /* if register_framebuffer has been called, we can unlock */
1194         if (atomic_read(&info->count))
1195                 mutex_unlock(&info->mm_lock);
1196
1197         fix->type = FB_TYPE_PACKED_PIXELS;
1198         fix->type_aux = 0;
1199         if (xgifb_info->video_bpp == 8)
1200                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1201         else
1202                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1203         fix->xpanstep = 0;
1204         if (XGIfb_ypan)
1205                 fix->ypanstep = 1;
1206         fix->ywrapstep = 0;
1207         fix->line_length = xgifb_info->video_linelength;
1208         fix->mmio_start = xgifb_info->mmio_base;
1209         fix->mmio_len = xgifb_info->mmio_size;
1210         fix->accel = FB_ACCEL_SIS_XABRE;
1211
1212         return 0;
1213 }
1214
1215 static int XGIfb_set_par(struct fb_info *info)
1216 {
1217         int err;
1218
1219         err = XGIfb_do_set_var(&info->var, 1, info);
1220         if (err)
1221                 return err;
1222         XGIfb_get_fix(&info->fix, -1, info);
1223         return 0;
1224 }
1225
1226 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1227 {
1228         struct xgifb_video_info *xgifb_info = info->par;
1229         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1230                         + var->hsync_len;
1231         unsigned int vtotal = 0;
1232         unsigned int drate = 0, hrate = 0;
1233         int found_mode = 0;
1234         int refresh_rate, search_idx;
1235
1236         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1237                 vtotal = var->upper_margin + var->yres + var->lower_margin
1238                                 + var->vsync_len;
1239                 vtotal <<= 1;
1240         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1241                 vtotal = var->upper_margin + var->yres + var->lower_margin
1242                                 + var->vsync_len;
1243                 vtotal <<= 2;
1244         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1245                 vtotal = var->upper_margin + (var->yres / 2)
1246                                 + var->lower_margin + var->vsync_len;
1247         } else
1248                 vtotal = var->upper_margin + var->yres + var->lower_margin
1249                                 + var->vsync_len;
1250
1251         if (!(htotal) || !(vtotal)) {
1252                 pr_debug("No valid timing data\n");
1253                 return -EINVAL;
1254         }
1255
1256         if (var->pixclock && htotal && vtotal) {
1257                 drate = 1000000000 / var->pixclock;
1258                 hrate = (drate * 1000) / htotal;
1259                 xgifb_info->refresh_rate =
1260                         (unsigned int) (hrate * 2 / vtotal);
1261                 pr_debug(
1262                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1263                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1264                         __func__, var->pixclock, htotal, vtotal,
1265                         __func__, drate, hrate, xgifb_info->refresh_rate);
1266         } else {
1267                 xgifb_info->refresh_rate = 60;
1268         }
1269
1270         /* Calculation wrong for 1024x600 - force it to 60Hz */
1271         if ((var->xres == 1024) && (var->yres == 600))
1272                 refresh_rate = 60;
1273
1274         search_idx = 0;
1275         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1276                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1277                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1278                         (XGIbios_mode[search_idx].yres == var->yres) &&
1279                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1280                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1281                                 found_mode = 1;
1282                                 break;
1283                         }
1284                 }
1285                 search_idx++;
1286         }
1287
1288         if (!found_mode) {
1289
1290                 pr_err("%dx%dx%d is no valid mode\n",
1291                         var->xres, var->yres, var->bits_per_pixel);
1292                 search_idx = 0;
1293                 while (XGIbios_mode[search_idx].mode_no != 0) {
1294                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1295                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1296                             (var->bits_per_pixel ==
1297                              XGIbios_mode[search_idx].bpp)) {
1298                                 if (XGIfb_validate_mode(xgifb_info,
1299                                                         search_idx) > 0) {
1300                                         found_mode = 1;
1301                                         break;
1302                                 }
1303                         }
1304                         search_idx++;
1305                 }
1306                 if (found_mode) {
1307                         var->xres = XGIbios_mode[search_idx].xres;
1308                         var->yres = XGIbios_mode[search_idx].yres;
1309                         pr_debug("Adapted to mode %dx%dx%d\n",
1310                                 var->xres, var->yres, var->bits_per_pixel);
1311
1312                 } else {
1313                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1314                                 var->xres, var->yres, var->bits_per_pixel);
1315                         return -EINVAL;
1316                 }
1317         }
1318
1319         /* Adapt RGB settings */
1320         XGIfb_bpp_to_var(xgifb_info, var);
1321
1322         if (!XGIfb_ypan) {
1323                 if (var->xres != var->xres_virtual)
1324                         var->xres_virtual = var->xres;
1325                 if (var->yres != var->yres_virtual)
1326                         var->yres_virtual = var->yres;
1327         }
1328
1329         /* Truncate offsets to maximum if too high */
1330         if (var->xoffset > var->xres_virtual - var->xres)
1331                 var->xoffset = var->xres_virtual - var->xres - 1;
1332
1333         if (var->yoffset > var->yres_virtual - var->yres)
1334                 var->yoffset = var->yres_virtual - var->yres - 1;
1335
1336         /* Set everything else to 0 */
1337         var->red.msb_right =
1338         var->green.msb_right =
1339         var->blue.msb_right =
1340         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1341
1342         return 0;
1343 }
1344
1345 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1346                 struct fb_info *info)
1347 {
1348         int err;
1349
1350         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1351                 return -EINVAL;
1352         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1353                 return -EINVAL;
1354
1355         if (var->vmode & FB_VMODE_YWRAP) {
1356                 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1357                         return -EINVAL;
1358         } else if (var->xoffset + info->var.xres > info->var.xres_virtual
1359                                 || var->yoffset + info->var.yres
1360                                                 > info->var.yres_virtual) {
1361                 return -EINVAL;
1362         }
1363         err = XGIfb_pan_var(var, info);
1364         if (err < 0)
1365                 return err;
1366
1367         info->var.xoffset = var->xoffset;
1368         info->var.yoffset = var->yoffset;
1369         if (var->vmode & FB_VMODE_YWRAP)
1370                 info->var.vmode |= FB_VMODE_YWRAP;
1371         else
1372                 info->var.vmode &= ~FB_VMODE_YWRAP;
1373
1374         return 0;
1375 }
1376
1377 static int XGIfb_blank(int blank, struct fb_info *info)
1378 {
1379         struct xgifb_video_info *xgifb_info = info->par;
1380         u8 reg;
1381
1382         reg = xgifb_reg_get(XGICR, 0x17);
1383
1384         if (blank > 0)
1385                 reg &= 0x7f;
1386         else
1387                 reg |= 0x80;
1388
1389         xgifb_reg_set(XGICR, 0x17, reg);
1390         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1391         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1392         return 0;
1393 }
1394
1395 static struct fb_ops XGIfb_ops = {
1396         .owner = THIS_MODULE,
1397         .fb_open = XGIfb_open,
1398         .fb_release = XGIfb_release,
1399         .fb_check_var = XGIfb_check_var,
1400         .fb_set_par = XGIfb_set_par,
1401         .fb_setcolreg = XGIfb_setcolreg,
1402         .fb_pan_display = XGIfb_pan_display,
1403         .fb_blank = XGIfb_blank,
1404         .fb_fillrect = cfb_fillrect,
1405         .fb_copyarea = cfb_copyarea,
1406         .fb_imageblit = cfb_imageblit,
1407 };
1408
1409 /* ---------------- Chip generation dependent routines ---------------- */
1410
1411 /* for XGI 315/550/650/740/330 */
1412
1413 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1414 {
1415
1416         u8 ChannelNum, tmp;
1417         u8 reg = 0;
1418
1419         /* xorg driver sets 32MB * 1 channel */
1420         if (xgifb_info->chip == XG27)
1421                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1422
1423         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1424         if (!reg)
1425                 return -1;
1426
1427         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1428         case XGI_DRAM_SIZE_1MB:
1429                 xgifb_info->video_size = 0x100000;
1430                 break;
1431         case XGI_DRAM_SIZE_2MB:
1432                 xgifb_info->video_size = 0x200000;
1433                 break;
1434         case XGI_DRAM_SIZE_4MB:
1435                 xgifb_info->video_size = 0x400000;
1436                 break;
1437         case XGI_DRAM_SIZE_8MB:
1438                 xgifb_info->video_size = 0x800000;
1439                 break;
1440         case XGI_DRAM_SIZE_16MB:
1441                 xgifb_info->video_size = 0x1000000;
1442                 break;
1443         case XGI_DRAM_SIZE_32MB:
1444                 xgifb_info->video_size = 0x2000000;
1445                 break;
1446         case XGI_DRAM_SIZE_64MB:
1447                 xgifb_info->video_size = 0x4000000;
1448                 break;
1449         case XGI_DRAM_SIZE_128MB:
1450                 xgifb_info->video_size = 0x8000000;
1451                 break;
1452         case XGI_DRAM_SIZE_256MB:
1453                 xgifb_info->video_size = 0x10000000;
1454                 break;
1455         default:
1456                 return -1;
1457         }
1458
1459         tmp = (reg & 0x0c) >> 2;
1460         switch (xgifb_info->chip) {
1461         case XG20:
1462         case XG21:
1463         case XG27:
1464                 ChannelNum = 1;
1465                 break;
1466
1467         case XG42:
1468                 if (reg & 0x04)
1469                         ChannelNum = 2;
1470                 else
1471                         ChannelNum = 1;
1472                 break;
1473
1474         case XG40:
1475         default:
1476                 if (tmp == 2)
1477                         ChannelNum = 2;
1478                 else if (tmp == 3)
1479                         ChannelNum = 3;
1480                 else
1481                         ChannelNum = 1;
1482                 break;
1483         }
1484
1485         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1486
1487         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1488                reg,
1489                xgifb_info->video_size, ChannelNum);
1490         return 0;
1491
1492 }
1493
1494 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1495 {
1496         u8 cr32, temp = 0;
1497
1498         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1499
1500         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1501
1502         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1503                 XGIfb_crt1off = 0;
1504         else {
1505                 if (cr32 & 0x5F)
1506                         XGIfb_crt1off = 1;
1507                 else
1508                         XGIfb_crt1off = 0;
1509         }
1510
1511         if (!xgifb_info->display2_force) {
1512                 if (cr32 & SIS_VB_TV)
1513                         xgifb_info->display2 = XGIFB_DISP_TV;
1514                 else if (cr32 & SIS_VB_LCD)
1515                         xgifb_info->display2 = XGIFB_DISP_LCD;
1516                 else if (cr32 & SIS_VB_CRT2)
1517                         xgifb_info->display2 = XGIFB_DISP_CRT;
1518                 else
1519                         xgifb_info->display2 = XGIFB_DISP_NONE;
1520         }
1521
1522         if (XGIfb_tvplug != -1)
1523                 /* Override with option */
1524                 xgifb_info->TV_plug = XGIfb_tvplug;
1525         else if (cr32 & SIS_VB_HIVISION) {
1526                 xgifb_info->TV_type = TVMODE_HIVISION;
1527                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1528         } else if (cr32 & SIS_VB_SVIDEO)
1529                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1530         else if (cr32 & SIS_VB_COMPOSITE)
1531                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1532         else if (cr32 & SIS_VB_SCART)
1533                 xgifb_info->TV_plug = TVPLUG_SCART;
1534
1535         if (xgifb_info->TV_type == 0) {
1536                 temp = xgifb_reg_get(XGICR, 0x38);
1537                 if (temp & 0x10)
1538                         xgifb_info->TV_type = TVMODE_PAL;
1539                 else
1540                         xgifb_info->TV_type = TVMODE_NTSC;
1541         }
1542
1543         /* Copy forceCRT1 option to CRT1off if option is given */
1544         if (XGIfb_forcecrt1 != -1) {
1545                 if (XGIfb_forcecrt1)
1546                         XGIfb_crt1off = 0;
1547                 else
1548                         XGIfb_crt1off = 1;
1549         }
1550 }
1551
1552 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1553 {
1554         u8 vb_chipid;
1555
1556         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1557         switch (vb_chipid) {
1558         case 0x01:
1559                 xgifb_info->hasVB = HASVB_301;
1560                 break;
1561         case 0x02:
1562                 xgifb_info->hasVB = HASVB_302;
1563                 break;
1564         default:
1565                 xgifb_info->hasVB = HASVB_NONE;
1566                 return 0;
1567         }
1568         return 1;
1569 }
1570
1571 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1572 {
1573         u8 reg;
1574
1575         if (!XGIfb_has_VB(xgifb_info)) {
1576                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1577                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1578                 case SIS_EXTERNAL_CHIP_LVDS:
1579                         xgifb_info->hasVB = HASVB_LVDS;
1580                         break;
1581                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1582                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1583                         break;
1584                 default:
1585                         break;
1586                 }
1587         }
1588 }
1589
1590 static int __init xgifb_optval(char *fullopt, int validx)
1591 {
1592         unsigned long lres;
1593
1594         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1595                 pr_err("Invalid value for option: %s\n", fullopt);
1596                 return 0;
1597         }
1598         return lres;
1599 }
1600
1601 static int __init XGIfb_setup(char *options)
1602 {
1603         char *this_opt;
1604
1605         if (!options || !*options)
1606                 return 0;
1607
1608         pr_info("Options: %s\n", options);
1609
1610         while ((this_opt = strsep(&options, ",")) != NULL) {
1611
1612                 if (!*this_opt)
1613                         continue;
1614
1615                 if (!strncmp(this_opt, "mode:", 5)) {
1616                         mode = this_opt + 5;
1617                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1618                         vesa = xgifb_optval(this_opt, 5);
1619                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1620                         refresh_rate = xgifb_optval(this_opt, 6);
1621                 } else if (!strncmp(this_opt, "rate:", 5)) {
1622                         refresh_rate = xgifb_optval(this_opt, 5);
1623                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1624                         XGIfb_crt1off = 1;
1625                 } else if (!strncmp(this_opt, "filter:", 7)) {
1626                         filter = xgifb_optval(this_opt, 7);
1627                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1628                         XGIfb_search_crt2type(this_opt + 14);
1629                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1630                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1631                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1632                         XGIfb_search_tvstd(this_opt + 7);
1633                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1634                         XGIfb_search_tvstd(this_opt + 7);
1635                 } else if (!strncmp(this_opt, "dstn", 4)) {
1636                         enable_dstn = 1;
1637                         /* DSTN overrules forcecrt2type */
1638                         XGIfb_crt2type = XGIFB_DISP_LCD;
1639                 } else if (!strncmp(this_opt, "noypan", 6)) {
1640                         XGIfb_ypan = 0;
1641                 } else {
1642                         mode = this_opt;
1643                 }
1644         }
1645         return 0;
1646 }
1647
1648 static int xgifb_probe(struct pci_dev *pdev,
1649                 const struct pci_device_id *ent)
1650 {
1651         u8 reg, reg1;
1652         u8 CR48, CR38;
1653         int ret;
1654         struct fb_info *fb_info;
1655         struct xgifb_video_info *xgifb_info;
1656         struct xgi_hw_device_info *hw_info;
1657         unsigned long video_size_max;
1658
1659         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1660         if (!fb_info)
1661                 return -ENOMEM;
1662
1663         xgifb_info = fb_info->par;
1664         hw_info = &xgifb_info->hw_info;
1665         xgifb_info->fb_info = fb_info;
1666         xgifb_info->chip_id = pdev->device;
1667         pci_read_config_byte(pdev,
1668                              PCI_REVISION_ID,
1669                              &xgifb_info->revision_id);
1670         hw_info->jChipRevision = xgifb_info->revision_id;
1671
1672         xgifb_info->pcibus = pdev->bus->number;
1673         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1674         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1675         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1676         xgifb_info->subsysdevice = pdev->subsystem_device;
1677
1678         video_size_max = pci_resource_len(pdev, 0);
1679         xgifb_info->video_base = pci_resource_start(pdev, 0);
1680         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1681         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1682         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1683         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1684                  (u64) pci_resource_start(pdev, 2),
1685                  xgifb_info->vga_base);
1686
1687         if (pci_enable_device(pdev)) {
1688                 ret = -EIO;
1689                 goto error;
1690         }
1691
1692         if (XGIfb_crt2type != -1) {
1693                 xgifb_info->display2 = XGIfb_crt2type;
1694                 xgifb_info->display2_force = true;
1695         }
1696
1697         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1698
1699         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1700         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1701
1702         if (reg1 != 0xa1) { /*I/O error */
1703                 dev_err(&pdev->dev, "I/O error\n");
1704                 ret = -EIO;
1705                 goto error_disable;
1706         }
1707
1708         switch (xgifb_info->chip_id) {
1709         case PCI_DEVICE_ID_XGI_20:
1710                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1711                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1712                 if (CR48&GPIOG_READ)
1713                         xgifb_info->chip = XG21;
1714                 else
1715                         xgifb_info->chip = XG20;
1716                 break;
1717         case PCI_DEVICE_ID_XGI_40:
1718                 xgifb_info->chip = XG40;
1719                 break;
1720         case PCI_DEVICE_ID_XGI_42:
1721                 xgifb_info->chip = XG42;
1722                 break;
1723         case PCI_DEVICE_ID_XGI_27:
1724                 xgifb_info->chip = XG27;
1725                 break;
1726         default:
1727                 ret = -ENODEV;
1728                 goto error_disable;
1729         }
1730
1731         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1732         hw_info->jChipType = xgifb_info->chip;
1733
1734         if (XGIfb_get_dram_size(xgifb_info)) {
1735                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1736                                                 SZ_16M);
1737         } else if (xgifb_info->video_size > video_size_max) {
1738                 xgifb_info->video_size = video_size_max;
1739         }
1740
1741         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1742         xgifb_reg_or(XGISR,
1743                      IND_SIS_PCI_ADDRESS_SET,
1744                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1745         /* Enable 2D accelerator engine */
1746         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1747
1748         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1749
1750         if (!request_mem_region(xgifb_info->video_base,
1751                                 xgifb_info->video_size,
1752                                 "XGIfb FB")) {
1753                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1754                        xgifb_info->video_size);
1755                 dev_err(&pdev->dev,
1756                         "Fatal error: Unable to reserve frame buffer memory. "
1757                         "Is there another framebuffer driver active?\n");
1758                 ret = -ENODEV;
1759                 goto error_disable;
1760         }
1761
1762         if (!request_mem_region(xgifb_info->mmio_base,
1763                                 xgifb_info->mmio_size,
1764                                 "XGIfb MMIO")) {
1765                 dev_err(&pdev->dev,
1766                         "Fatal error: Unable to reserve MMIO region\n");
1767                 ret = -ENODEV;
1768                 goto error_0;
1769         }
1770
1771         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1772         ioremap(xgifb_info->video_base, xgifb_info->video_size);
1773         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1774                                             xgifb_info->mmio_size);
1775
1776         dev_info(&pdev->dev,
1777                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1778                  (u64) xgifb_info->video_base,
1779                  xgifb_info->video_vbase,
1780                  xgifb_info->video_size / 1024);
1781
1782         dev_info(&pdev->dev,
1783                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1784                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1785                  xgifb_info->mmio_size / 1024);
1786
1787         pci_set_drvdata(pdev, xgifb_info);
1788         if (!XGIInitNew(pdev))
1789                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1790
1791         xgifb_info->mtrr = -1;
1792
1793         xgifb_info->hasVB = HASVB_NONE;
1794         if ((xgifb_info->chip == XG20) ||
1795             (xgifb_info->chip == XG27)) {
1796                 xgifb_info->hasVB = HASVB_NONE;
1797         } else if (xgifb_info->chip == XG21) {
1798                 CR38 = xgifb_reg_get(XGICR, 0x38);
1799                 if ((CR38&0xE0) == 0xC0)
1800                         xgifb_info->display2 = XGIFB_DISP_LCD;
1801                 else if ((CR38&0xE0) == 0x60)
1802                         xgifb_info->hasVB = HASVB_CHRONTEL;
1803                 else
1804                         xgifb_info->hasVB = HASVB_NONE;
1805         } else {
1806                 XGIfb_get_VB_type(xgifb_info);
1807         }
1808
1809         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1810
1811         hw_info->ulExternalChip = 0;
1812
1813         switch (xgifb_info->hasVB) {
1814         case HASVB_301:
1815                 reg = xgifb_reg_get(XGIPART4, 0x01);
1816                 if (reg >= 0xE0) {
1817                         hw_info->ujVBChipID = VB_CHIP_302LV;
1818                         dev_info(&pdev->dev,
1819                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1820                                  reg);
1821                 } else if (reg >= 0xD0) {
1822                         hw_info->ujVBChipID = VB_CHIP_301LV;
1823                         dev_info(&pdev->dev,
1824                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1825                                  reg);
1826                 } else {
1827                         hw_info->ujVBChipID = VB_CHIP_301;
1828                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1829                 }
1830                 break;
1831         case HASVB_302:
1832                 reg = xgifb_reg_get(XGIPART4, 0x01);
1833                 if (reg >= 0xE0) {
1834                         hw_info->ujVBChipID = VB_CHIP_302LV;
1835                         dev_info(&pdev->dev,
1836                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1837                                  reg);
1838                 } else if (reg >= 0xD0) {
1839                         hw_info->ujVBChipID = VB_CHIP_301LV;
1840                         dev_info(&pdev->dev,
1841                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1842                                  reg);
1843                 } else if (reg >= 0xB0) {
1844                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1845
1846                         hw_info->ujVBChipID = VB_CHIP_302B;
1847
1848                 } else {
1849                         hw_info->ujVBChipID = VB_CHIP_302;
1850                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1851                 }
1852                 break;
1853         case HASVB_LVDS:
1854                 hw_info->ulExternalChip = 0x1;
1855                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1856                 break;
1857         case HASVB_TRUMPION:
1858                 hw_info->ulExternalChip = 0x2;
1859                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1860                 break;
1861         case HASVB_CHRONTEL:
1862                 hw_info->ulExternalChip = 0x4;
1863                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1864                 break;
1865         case HASVB_LVDS_CHRONTEL:
1866                 hw_info->ulExternalChip = 0x5;
1867                 dev_info(&pdev->dev,
1868                          "LVDS transmitter and Chrontel TV encoder detected\n");
1869                 break;
1870         default:
1871                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1872                 break;
1873         }
1874
1875         if (xgifb_info->hasVB != HASVB_NONE)
1876                 XGIfb_detect_VB(xgifb_info);
1877         else if (xgifb_info->chip != XG21)
1878                 xgifb_info->display2 = XGIFB_DISP_NONE;
1879
1880         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1881                 if (!enable_dstn) {
1882                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1883                         reg &= 0x0f;
1884                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1885                 }
1886         }
1887
1888         xgifb_info->mode_idx = -1;
1889
1890         if (mode)
1891                 XGIfb_search_mode(xgifb_info, mode);
1892         else if (vesa != -1)
1893                 XGIfb_search_vesamode(xgifb_info, vesa);
1894
1895         if (xgifb_info->mode_idx >= 0)
1896                 xgifb_info->mode_idx =
1897                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1898
1899         if (xgifb_info->mode_idx < 0) {
1900                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1901                     xgifb_info->chip == XG21)
1902                         xgifb_info->mode_idx =
1903                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1904                 else
1905                         xgifb_info->mode_idx = DEFAULT_MODE;
1906         }
1907
1908         if (xgifb_info->mode_idx < 0) {
1909                 dev_err(&pdev->dev, "No supported video mode found\n");
1910                 ret = -EINVAL;
1911                 goto error_1;
1912         }
1913
1914         /* set default refresh rate */
1915         xgifb_info->refresh_rate = refresh_rate;
1916         if (xgifb_info->refresh_rate == 0)
1917                 xgifb_info->refresh_rate = 60;
1918         if (XGIfb_search_refresh_rate(xgifb_info,
1919                         xgifb_info->refresh_rate) == 0) {
1920                 xgifb_info->rate_idx = 1;
1921                 xgifb_info->refresh_rate = 60;
1922         }
1923
1924         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1925         xgifb_info->video_vwidth =
1926                 xgifb_info->video_width =
1927                         XGIbios_mode[xgifb_info->mode_idx].xres;
1928         xgifb_info->video_vheight =
1929                 xgifb_info->video_height =
1930                         XGIbios_mode[xgifb_info->mode_idx].yres;
1931         xgifb_info->org_x = xgifb_info->org_y = 0;
1932         xgifb_info->video_linelength =
1933                 xgifb_info->video_width *
1934                 (xgifb_info->video_bpp >> 3);
1935         switch (xgifb_info->video_bpp) {
1936         case 8:
1937                 xgifb_info->DstColor = 0x0000;
1938                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1939                 xgifb_info->video_cmap_len = 256;
1940                 break;
1941         case 16:
1942                 xgifb_info->DstColor = 0x8000;
1943                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1944                 xgifb_info->video_cmap_len = 16;
1945                 break;
1946         case 32:
1947                 xgifb_info->DstColor = 0xC000;
1948                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1949                 xgifb_info->video_cmap_len = 16;
1950                 break;
1951         default:
1952                 xgifb_info->video_cmap_len = 16;
1953                 pr_info("Unsupported depth %d\n",
1954                        xgifb_info->video_bpp);
1955                 break;
1956         }
1957
1958         pr_info("Default mode is %dx%dx%d (%dHz)\n",
1959                xgifb_info->video_width,
1960                xgifb_info->video_height,
1961                xgifb_info->video_bpp,
1962                xgifb_info->refresh_rate);
1963
1964         fb_info->var.red.length         = 8;
1965         fb_info->var.green.length       = 8;
1966         fb_info->var.blue.length        = 8;
1967         fb_info->var.activate           = FB_ACTIVATE_NOW;
1968         fb_info->var.height             = -1;
1969         fb_info->var.width              = -1;
1970         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
1971         fb_info->var.xres               = xgifb_info->video_width;
1972         fb_info->var.xres_virtual       = xgifb_info->video_width;
1973         fb_info->var.yres               = xgifb_info->video_height;
1974         fb_info->var.yres_virtual       = xgifb_info->video_height;
1975         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
1976
1977         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1978
1979         fb_info->var.pixclock = (u32) (1000000000 /
1980                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
1981                                 hw_info,
1982                                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
1983                                 xgifb_info->rate_idx));
1984
1985         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
1986                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
1987                 xgifb_info->rate_idx,
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         pci_set_drvdata(pdev, NULL);
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 "
2093         "(eg. 1024x768x16).");
2094
2095 module_param(forcecrt2type, charp, 0);
2096 MODULE_PARM_DESC(forcecrt2type,
2097         "Force the second display output type. Possible values are NONE, "
2098         "LCD, TV, VGA, SVIDEO or COMPOSITE.");
2099
2100 module_param(vesa, int, 0);
2101 MODULE_PARM_DESC(vesa,
2102         "Selects the desired default display mode by VESA mode number "
2103         "(eg. 0x117).");
2104
2105 module_param(filter, int, 0);
2106 MODULE_PARM_DESC(filter,
2107         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). "
2108         "Possible values 0-7. Default: [no filter]).");
2109
2110 static int __init xgifb_init(void)
2111 {
2112         char *option = NULL;
2113
2114         if (forcecrt2type != NULL)
2115                 XGIfb_search_crt2type(forcecrt2type);
2116         if (fb_get_options("xgifb", &option))
2117                 return -ENODEV;
2118         XGIfb_setup(option);
2119
2120         return pci_register_driver(&xgifb_driver);
2121 }
2122
2123 static void __exit xgifb_remove_module(void)
2124 {
2125         pci_unregister_driver(&xgifb_driver);
2126         pr_debug("Module unloaded\n");
2127 }
2128
2129 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2130 MODULE_LICENSE("GPL");
2131 MODULE_AUTHOR("XGITECH , Others");
2132 module_init(xgifb_init);
2133 module_exit(xgifb_remove_module);