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/module.h>
  10
  11 #ifdef CONFIG_MTRR
  12 #include <asm/mtrr.h>
  13 #endif
  14
  15 #include "XGI_main.h"
  16 #include "vb_init.h"
  17 #include "vb_util.h"
  18 #include "vb_setmode.h"
  19
  20 #define Index_CR_GPIO_Reg1 0x48
  21 #define Index_CR_GPIO_Reg3 0x4a
  22
  23 #define GPIOG_EN    (1<<6)
  24 #define GPIOG_READ  (1<<1)
  25
  26 static char *forcecrt2type;
  27 static char *mode;
  28 static int vesa = -1;
  29 static unsigned int refresh_rate;
  30
  31 /* -------------------- Macro definitions ---------------------------- */
  32
  33 #ifdef DEBUG
  34 static void dumpVGAReg(void)
  35 {
  36         u8 i, reg;
  37
  38         xgifb_reg_set(XGISR, 0x05, 0x86);
  39
  40         for (i = 0; i < 0x4f; i++) {
  41                 reg = xgifb_reg_get(XGISR, i);
  42                 pr_debug("o 3c4 %x\n", i);
  43                 pr_debug("i 3c5 => %x\n", reg);
  44         }
  45
  46         for (i = 0; i < 0xF0; i++) {
  47                 reg = xgifb_reg_get(XGICR, i);
  48                 pr_debug("o 3d4 %x\n", i);
  49                 pr_debug("i 3d5 => %x\n", reg);
  50         }
  51 }
  52 #else
  53 static inline void dumpVGAReg(void)
  54 {
  55 }
  56 #endif
  57
  58 /* --------------- Hardware Access Routines -------------------------- */
  59
  60 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
  61                 struct xgi_hw_device_info *HwDeviceExtension,
  62                 unsigned char modeno, unsigned char rateindex)
  63 {
  64         unsigned short ModeNo = modeno;
  65         unsigned short ModeIdIndex = 0, ClockIndex = 0;
  66         unsigned short RefreshRateTableIndex = 0;
  67         int Clock;
  68         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  69
  70         XGI_SearchModeID(ModeNo, &ModeIdIndex, XGI_Pr);
  71
  72         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  73                         ModeIdIndex, XGI_Pr);
  74
  75         ClockIndex = XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
  76
  77         Clock = XGI_Pr->VCLKData[ClockIndex].CLOCK * 1000;
  78
  79         return Clock;
  80 }
  81
  82 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
  83                 struct xgi_hw_device_info *HwDeviceExtension,
  84                 unsigned char modeno, unsigned char rateindex,
  85                 u32 *left_margin, u32 *right_margin, u32 *upper_margin,
  86                 u32 *lower_margin, u32 *hsync_len, u32 *vsync_len, u32 *sync,
  87                 u32 *vmode)
  88 {
  89         unsigned short ModeNo = modeno;
  90         unsigned short ModeIdIndex, index = 0;
  91         unsigned short RefreshRateTableIndex = 0;
  92
  93         unsigned short VRE, VBE, VRS, VBS, VDE, VT;
  94         unsigned short HRE, HBE, HRS, HBS, HDE, HT;
  95         unsigned char sr_data, cr_data, cr_data2;
  96         unsigned long cr_data3;
  97         int A, B, C, D, E, 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 = XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 104
 105         sr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[5];
 106
 107         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[0];
 108
 109         /* Horizontal total */
 110         HT = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x03) << 8);
 111         A = HT + 5;
 112
 113         HDE = (XGI_Pr->RefIndex[RefreshRateTableIndex].XRes >> 3) - 1;
 114         E = HDE + 1;
 115
 116         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[3];
 117
 118         /* Horizontal retrace (=sync) start */
 119         HRS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0xC0) << 2);
 120         F = HRS - E - 3;
 121
 122         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[1];
 123
 124         /* Horizontal blank start */
 125         HBS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x30) << 4);
 126
 127         sr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[6];
 128
 129         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[2];
 130
 131         cr_data2 = XGI_Pr->XGINEWUB_CRT1Table[index].CR[4];
 132
 133         /* Horizontal blank end */
 134         HBE = (cr_data & 0x1f) | ((unsigned short) (cr_data2 & 0x80) >> 2)
 135                         | ((unsigned short) (sr_data & 0x03) << 6);
 136
 137         /* Horizontal retrace (=sync) end */
 138         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 139
 140         temp = HBE - ((E - 1) & 255);
 141         B = (temp > 0) ? temp : (temp + 256);
 142
 143         temp = HRE - ((E + F + 3) & 63);
 144         C = (temp > 0) ? temp : (temp + 64);
 145
 146         D = B - F - C;
 147
 148         *left_margin = D * 8;
 149         *right_margin = F * 8;
 150         *hsync_len = C * 8;
 151
 152         sr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[14];
 153
 154         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[8];
 155
 156         cr_data2 = XGI_Pr->XGINEWUB_CRT1Table[index].CR[9];
 157
 158         /* Vertical total */
 159         VT = (cr_data & 0xFF) | ((unsigned short) (cr_data2 & 0x01) << 8)
 160                         | ((unsigned short) (cr_data2 & 0x20) << 4)
 161                         | ((unsigned short) (sr_data & 0x01) << 10);
 162         A = VT + 2;
 163
 164         VDE = XGI_Pr->RefIndex[RefreshRateTableIndex].YRes - 1;
 165         E = VDE + 1;
 166
 167         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[10];
 168
 169         /* Vertical retrace (=sync) start */
 170         VRS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x04) << 6)
 171                         | ((unsigned short) (cr_data2 & 0x80) << 2)
 172                         | ((unsigned short) (sr_data & 0x08) << 7);
 173         F = VRS + 1 - E;
 174
 175         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[12];
 176
 177         cr_data3 = (XGI_Pr->XGINEWUB_CRT1Table[index].CR[14] & 0x80) << 5;
 178
 179         /* Vertical blank start */
 180         VBS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x08) << 5)
 181                         | ((unsigned short) (cr_data3 & 0x20) << 4)
 182                         | ((unsigned short) (sr_data & 0x04) << 8);
 183
 184         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[13];
 185
 186         /* Vertical blank end */
 187         VBE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x10) << 4);
 188         temp = VBE - ((E - 1) & 511);
 189         B = (temp > 0) ? temp : (temp + 512);
 190
 191         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[11];
 192
 193         /* Vertical retrace (=sync) end */
 194         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 195         temp = VRE - ((E + F - 1) & 31);
 196         C = (temp > 0) ? temp : (temp + 32);
 197
 198         D = B - F - C;
 199
 200         *upper_margin = D;
 201         *lower_margin = F;
 202         *vsync_len = C;
 203
 204         if (XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 205                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 206         else
 207                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 208
 209         if (XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 210                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 211         else
 212                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 213
 214         *vmode = FB_VMODE_NONINTERLACED;
 215         if (XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080)
 216                 *vmode = FB_VMODE_INTERLACED;
 217         else {
 218                 j = 0;
 219                 while (XGI_Pr->EModeIDTable[j].Ext_ModeID != 0xff) {
 220                         if (XGI_Pr->EModeIDTable[j].Ext_ModeID ==
 221                             XGI_Pr->RefIndex[RefreshRateTableIndex].ModeID) {
 222                                 if (XGI_Pr->EModeIDTable[j].Ext_ModeFlag &
 223                                     DoubleScanMode) {
 224                                         *vmode = FB_VMODE_DOUBLE;
 225                                 }
 226                                 break;
 227                         }
 228                         j++;
 229                 }
 230         }
 231
 232         return 1;
 233 }
 234
 235 static void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 236 {
 237         XGI_Pr->P3c4 = BaseAddr + 0x14;
 238         XGI_Pr->P3d4 = BaseAddr + 0x24;
 239         XGI_Pr->P3c0 = BaseAddr + 0x10;
 240         XGI_Pr->P3ce = BaseAddr + 0x1e;
 241         XGI_Pr->P3c2 = BaseAddr + 0x12;
 242         XGI_Pr->P3ca = BaseAddr + 0x1a;
 243         XGI_Pr->P3c6 = BaseAddr + 0x16;
 244         XGI_Pr->P3c7 = BaseAddr + 0x17;
 245         XGI_Pr->P3c8 = BaseAddr + 0x18;
 246         XGI_Pr->P3c9 = BaseAddr + 0x19;
 247         XGI_Pr->P3da = BaseAddr + 0x2A;
 248         /* Digital video interface registers (LCD) */
 249         XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
 250         /* 301 TV Encoder registers */
 251         XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
 252         /* 301 Macrovision registers */
 253         XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
 254         /* 301 VGA2 (and LCD) registers */
 255         XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
 256         /* 301 palette address port registers */
 257         XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
 258
 259 }
 260
 261 /* ------------------ Internal helper routines ----------------- */
 262
 263 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 264 {
 265
 266         int found_mode = 0;
 267         int XGIfb_mode_idx = 0;
 268
 269         found_mode = 0;
 270         while ((XGIbios_mode[XGIfb_mode_idx].mode_no != 0)
 271                         && (XGIbios_mode[XGIfb_mode_idx].xres
 272                                         <= xgifb_info->lvds_data.LVDSHDE)) {
 273                 if ((XGIbios_mode[XGIfb_mode_idx].xres
 274                                 == xgifb_info->lvds_data.LVDSHDE)
 275                                 && (XGIbios_mode[XGIfb_mode_idx].yres
 276                                         == xgifb_info->lvds_data.LVDSVDE)
 277                                 && (XGIbios_mode[XGIfb_mode_idx].bpp == 8)) {
 278                         found_mode = 1;
 279                         break;
 280                 }
 281                 XGIfb_mode_idx++;
 282         }
 283         if (!found_mode)
 284                 XGIfb_mode_idx = -1;
 285
 286         return XGIfb_mode_idx;
 287 }
 288
 289 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 290                               const char *name)
 291 {
 292         unsigned int xres;
 293         unsigned int yres;
 294         unsigned int bpp;
 295         int i;
 296
 297         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 298                 goto invalid_mode;
 299
 300         if (bpp == 24)
 301                 bpp = 32; /* That's for people who mix up color and fb depth. */
 302
 303         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 304                 if (XGIbios_mode[i].xres == xres &&
 305                     XGIbios_mode[i].yres == yres &&
 306                     XGIbios_mode[i].bpp == bpp) {
 307                         xgifb_info->mode_idx = i;
 308                         return;
 309                 }
 310 invalid_mode:
 311         pr_info("Invalid mode '%s'\n", name);
 312 }
 313
 314 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 315                                   unsigned int vesamode)
 316 {
 317         int i = 0, j = 0;
 318
 319         if (vesamode == 0)
 320                 goto invalid;
 321
 322         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 323
 324         while (XGIbios_mode[i].mode_no != 0) {
 325                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 326                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 327                         xgifb_info->mode_idx = i;
 328                         j = 1;
 329                         break;
 330                 }
 331                 i++;
 332         }
 333
 334 invalid:
 335         if (!j)
 336                 pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 337 }
 338
 339 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 340 {
 341         u16 xres, yres;
 342         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 343
 344         if (xgifb_info->chip == XG21) {
 345                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 346                         xres = xgifb_info->lvds_data.LVDSHDE;
 347                         yres = xgifb_info->lvds_data.LVDSVDE;
 348                         if (XGIbios_mode[myindex].xres > xres)
 349                                 return -1;
 350                         if (XGIbios_mode[myindex].yres > yres)
 351                                 return -1;
 352                         if ((XGIbios_mode[myindex].xres < xres) &&
 353                             (XGIbios_mode[myindex].yres < yres)) {
 354                                 if (XGIbios_mode[myindex].bpp > 8)
 355                                         return -1;
 356                         }
 357
 358                 }
 359                 return myindex;
 360
 361         }
 362
 363         /* FIXME: for now, all is valid on XG27 */
 364         if (xgifb_info->chip == XG27)
 365                 return myindex;
 366
 367         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 368                 return -1;
 369
 370         switch (xgifb_info->display2) {
 371         case XGIFB_DISP_LCD:
 372                 switch (hw_info->ulCRT2LCDType) {
 373                 case LCD_640x480:
 374                         xres = 640;
 375                         yres = 480;
 376                         break;
 377                 case LCD_800x600:
 378                         xres = 800;
 379                         yres = 600;
 380                         break;
 381                 case LCD_1024x600:
 382                         xres = 1024;
 383                         yres = 600;
 384                         break;
 385                 case LCD_1024x768:
 386                         xres = 1024;
 387                         yres = 768;
 388                         break;
 389                 case LCD_1152x768:
 390                         xres = 1152;
 391                         yres = 768;
 392                         break;
 393                 case LCD_1280x960:
 394                         xres = 1280;
 395                         yres = 960;
 396                         break;
 397                 case LCD_1280x768:
 398                         xres = 1280;
 399                         yres = 768;
 400                         break;
 401                 case LCD_1280x1024:
 402                         xres = 1280;
 403                         yres = 1024;
 404                         break;
 405                 case LCD_1400x1050:
 406                         xres = 1400;
 407                         yres = 1050;
 408                         break;
 409                 case LCD_1600x1200:
 410                         xres = 1600;
 411                         yres = 1200;
 412                         break;
 413                 default:
 414                         xres = 0;
 415                         yres = 0;
 416                         break;
 417                 }
 418                 if (XGIbios_mode[myindex].xres > xres)
 419                         return -1;
 420                 if (XGIbios_mode[myindex].yres > yres)
 421                         return -1;
 422                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 423                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 424                         switch (XGIbios_mode[myindex].xres) {
 425                         case 512:
 426                                 if (XGIbios_mode[myindex].yres != 512)
 427                                         return -1;
 428                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 429                                         return -1;
 430                                 break;
 431                         case 640:
 432                                 if ((XGIbios_mode[myindex].yres != 400)
 433                                                 && (XGIbios_mode[myindex].yres
 434                                                                 != 480))
 435                                         return -1;
 436                                 break;
 437                         case 800:
 438                                 if (XGIbios_mode[myindex].yres != 600)
 439                                         return -1;
 440                                 break;
 441                         case 1024:
 442                                 if ((XGIbios_mode[myindex].yres != 600) &&
 443                                     (XGIbios_mode[myindex].yres != 768))
 444                                         return -1;
 445                                 if ((XGIbios_mode[myindex].yres == 600) &&
 446                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 447                                         return -1;
 448                                 break;
 449                         case 1152:
 450                                 if ((XGIbios_mode[myindex].yres) != 768)
 451                                         return -1;
 452                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 453                                         return -1;
 454                                 break;
 455                         case 1280:
 456                                 if ((XGIbios_mode[myindex].yres != 768) &&
 457                                     (XGIbios_mode[myindex].yres != 1024))
 458                                         return -1;
 459                                 if ((XGIbios_mode[myindex].yres == 768) &&
 460                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 461                                         return -1;
 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                 } else {
 475                         switch (XGIbios_mode[myindex].xres) {
 476                         case 512:
 477                                 if (XGIbios_mode[myindex].yres != 512)
 478                                         return -1;
 479                                 break;
 480                         case 640:
 481                                 if ((XGIbios_mode[myindex].yres != 400) &&
 482                                     (XGIbios_mode[myindex].yres != 480))
 483                                         return -1;
 484                                 break;
 485                         case 800:
 486                                 if (XGIbios_mode[myindex].yres != 600)
 487                                         return -1;
 488                                 break;
 489                         case 1024:
 490                                 if (XGIbios_mode[myindex].yres != 768)
 491                                         return -1;
 492                                 break;
 493                         case 1280:
 494                                 if ((XGIbios_mode[myindex].yres != 960) &&
 495                                     (XGIbios_mode[myindex].yres != 1024))
 496                                         return -1;
 497                                 if (XGIbios_mode[myindex].yres == 960) {
 498                                         if (hw_info->ulCRT2LCDType ==
 499                                             LCD_1400x1050)
 500                                                 return -1;
 501                                 }
 502                                 break;
 503                         case 1400:
 504                                 if (XGIbios_mode[myindex].yres != 1050)
 505                                         return -1;
 506                                 break;
 507                         case 1600:
 508                                 if (XGIbios_mode[myindex].yres != 1200)
 509                                         return -1;
 510                                 break;
 511                         default:
 512                                 return -1;
 513                         }
 514                 }
 515                 break;
 516         case XGIFB_DISP_TV:
 517                 switch (XGIbios_mode[myindex].xres) {
 518                 case 512:
 519                 case 640:
 520                 case 800:
 521                         break;
 522                 case 720:
 523                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 524                                 if (XGIbios_mode[myindex].yres != 480)
 525                                         return -1;
 526                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 527                                 if (XGIbios_mode[myindex].yres != 576)
 528                                         return -1;
 529                         }
 530                         /* LVDS/CHRONTEL does not support 720 */
 531                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 532                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 533                                 return -1;
 534                         }
 535                         break;
 536                 case 1024:
 537                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 538                                 if (XGIbios_mode[myindex].bpp == 32)
 539                                         return -1;
 540                         }
 541                         break;
 542                 default:
 543                         return -1;
 544                 }
 545                 break;
 546         case XGIFB_DISP_CRT:
 547                 if (XGIbios_mode[myindex].xres > 1280)
 548                         return -1;
 549                 break;
 550         case XGIFB_DISP_NONE:
 551                 break;
 552         }
 553         return myindex;
 554
 555 }
 556
 557 static void XGIfb_search_crt2type(const char *name)
 558 {
 559         int i = 0;
 560
 561         if (name == NULL)
 562                 return;
 563
 564         while (XGI_crt2type[i].type_no != -1) {
 565                 if (!strcmp(name, XGI_crt2type[i].name)) {
 566                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 567                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 568                         break;
 569                 }
 570                 i++;
 571         }
 572         if (XGIfb_crt2type < 0)
 573                 pr_info("Invalid CRT2 type: %s\n", name);
 574 }
 575
 576 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 577                                     unsigned int rate)
 578 {
 579         u16 xres, yres;
 580         int i = 0;
 581
 582         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 583         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 584
 585         xgifb_info->rate_idx = 0;
 586         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 587                 if ((XGIfb_vrate[i].xres == xres) &&
 588                     (XGIfb_vrate[i].yres == yres)) {
 589                         if (XGIfb_vrate[i].refresh == rate) {
 590                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 591                                 break;
 592                         } else if (XGIfb_vrate[i].refresh > rate) {
 593                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 594                                         pr_debug("Adjusting rate from %d up to %d\n",
 595                                                  rate, XGIfb_vrate[i].refresh);
 596                                         xgifb_info->rate_idx =
 597                                                 XGIfb_vrate[i].idx;
 598                                         xgifb_info->refresh_rate =
 599                                                 XGIfb_vrate[i].refresh;
 600                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 601                                                 <= 2) && (XGIfb_vrate[i].idx
 602                                                 != 1)) {
 603                                         pr_debug("Adjusting rate from %d down to %d\n",
 604                                                  rate, XGIfb_vrate[i-1].refresh);
 605                                         xgifb_info->rate_idx =
 606                                                 XGIfb_vrate[i - 1].idx;
 607                                         xgifb_info->refresh_rate =
 608                                                 XGIfb_vrate[i - 1].refresh;
 609                                 }
 610                                 break;
 611                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 612                                 pr_debug("Adjusting rate from %d down to %d\n",
 613                                          rate, XGIfb_vrate[i].refresh);
 614                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 615                                 break;
 616                         }
 617                 }
 618                 i++;
 619         }
 620         if (xgifb_info->rate_idx > 0) {
 621                 return xgifb_info->rate_idx;
 622         } else {
 623                 pr_info("Unsupported rate %d for %dx%d\n",
 624                        rate, xres, yres);
 625                 return 0;
 626         }
 627 }
 628
 629 static void XGIfb_search_tvstd(const char *name)
 630 {
 631         int i = 0;
 632
 633         if (name == NULL)
 634                 return;
 635
 636         while (XGI_tvtype[i].type_no != -1) {
 637                 if (!strcmp(name, XGI_tvtype[i].name)) {
 638                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 639                         break;
 640                 }
 641                 i++;
 642         }
 643 }
 644
 645 /* ----------- FBDev related routines for all series ----------- */
 646
 647 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 648                              struct fb_var_screeninfo *var)
 649 {
 650         switch (var->bits_per_pixel) {
 651         case 8:
 652                 var->red.offset = var->green.offset = var->blue.offset = 0;
 653                 var->red.length = var->green.length = var->blue.length = 6;
 654                 xgifb_info->video_cmap_len = 256;
 655                 break;
 656         case 16:
 657                 var->red.offset = 11;
 658                 var->red.length = 5;
 659                 var->green.offset = 5;
 660                 var->green.length = 6;
 661                 var->blue.offset = 0;
 662                 var->blue.length = 5;
 663                 var->transp.offset = 0;
 664                 var->transp.length = 0;
 665                 xgifb_info->video_cmap_len = 16;
 666                 break;
 667         case 32:
 668                 var->red.offset = 16;
 669                 var->red.length = 8;
 670                 var->green.offset = 8;
 671                 var->green.length = 8;
 672                 var->blue.offset = 0;
 673                 var->blue.length = 8;
 674                 var->transp.offset = 24;
 675                 var->transp.length = 8;
 676                 xgifb_info->video_cmap_len = 16;
 677                 break;
 678         }
 679 }
 680
 681 /* --------------------- SetMode routines ------------------------- */
 682
 683 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 684 {
 685         u8 cr30 = 0, cr31 = 0;
 686
 687         cr31 = xgifb_reg_get(XGICR, 0x31);
 688         cr31 &= ~0x60;
 689
 690         switch (xgifb_info->display2) {
 691         case XGIFB_DISP_CRT:
 692                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 693                 cr31 |= SIS_DRIVER_MODE;
 694                 break;
 695         case XGIFB_DISP_LCD:
 696                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 697                 cr31 |= SIS_DRIVER_MODE;
 698                 break;
 699         case XGIFB_DISP_TV:
 700                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 701                         cr30 = (SIS_VB_OUTPUT_HIVISION
 702                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 703                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 704                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 705                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 706                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 707                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 708                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 709                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 710                         cr30 = (SIS_VB_OUTPUT_SCART
 711                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 712                 cr31 |= SIS_DRIVER_MODE;
 713
 714                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 715                         cr31 |= 0x01;
 716                 else
 717                         cr31 &= ~0x01;
 718                 break;
 719         default: /* disable CRT2 */
 720                 cr30 = 0x00;
 721                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 722         }
 723
 724         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 725         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 726         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 727                                                 (xgifb_info->rate_idx & 0x0F));
 728 }
 729
 730 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 731 {
 732         u8 reg;
 733         unsigned char doit = 1;
 734
 735         if (xgifb_info->video_bpp == 8) {
 736                 /*
 737                  * We can't switch off CRT1 on LVDS/Chrontel
 738                  * in 8bpp Modes
 739                  */
 740                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 741                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 742                         doit = 0;
 743                 }
 744                 /*
 745                  * We can't switch off CRT1 on 301B-DH
 746                  * in 8bpp Modes if using LCD
 747                  */
 748                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 749                         doit = 0;
 750         }
 751
 752         /* We can't switch off CRT1 if bridge is in slave mode */
 753         if (xgifb_info->hasVB != HASVB_NONE) {
 754                 reg = xgifb_reg_get(XGIPART1, 0x00);
 755
 756                 if ((reg & 0x50) == 0x10)
 757                         doit = 0;
 758
 759         } else {
 760                 XGIfb_crt1off = 0;
 761         }
 762
 763         reg = xgifb_reg_get(XGICR, 0x17);
 764         if ((XGIfb_crt1off) && (doit))
 765                 reg &= ~0x80;
 766         else
 767                 reg |= 0x80;
 768         xgifb_reg_set(XGICR, 0x17, reg);
 769
 770         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 771
 772         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 773             xgifb_info->hasVB == HASVB_301) {
 774
 775                 reg = xgifb_reg_get(XGIPART4, 0x01);
 776
 777                 if (reg < 0xB0) { /* Set filter for XGI301 */
 778                         int filter_tb;
 779
 780                         switch (xgifb_info->video_width) {
 781                         case 320:
 782                                 filter_tb = (xgifb_info->TV_type ==
 783                                              TVMODE_NTSC) ? 4 : 12;
 784                                 break;
 785                         case 640:
 786                                 filter_tb = (xgifb_info->TV_type ==
 787                                              TVMODE_NTSC) ? 5 : 13;
 788                                 break;
 789                         case 720:
 790                                 filter_tb = (xgifb_info->TV_type ==
 791                                              TVMODE_NTSC) ? 6 : 14;
 792                                 break;
 793                         case 800:
 794                                 filter_tb = (xgifb_info->TV_type ==
 795                                              TVMODE_NTSC) ? 7 : 15;
 796                                 break;
 797                         default:
 798                                 filter_tb = 0;
 799                                 filter = -1;
 800                                 break;
 801                         }
 802                         xgifb_reg_or(XGIPART1,
 803                                      SIS_CRT2_WENABLE_315,
 804                                      0x01);
 805
 806                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 807
 808                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 809
 810                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 811
 812                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 813
 814                                 } else if (xgifb_info->TV_plug
 815                                                 == TVPLUG_COMPOSITE) {
 816
 817                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 818
 819                                         switch (xgifb_info->video_width) {
 820                                         case 640:
 821                                                 xgifb_reg_set(XGIPART2,
 822                                                               0x35,
 823                                                               0xEB);
 824                                                 xgifb_reg_set(XGIPART2,
 825                                                               0x36,
 826                                                               0x04);
 827                                                 xgifb_reg_set(XGIPART2,
 828                                                               0x37,
 829                                                               0x25);
 830                                                 xgifb_reg_set(XGIPART2,
 831                                                               0x38,
 832                                                               0x18);
 833                                                 break;
 834                                         case 720:
 835                                                 xgifb_reg_set(XGIPART2,
 836                                                               0x35,
 837                                                               0xEE);
 838                                                 xgifb_reg_set(XGIPART2,
 839                                                               0x36,
 840                                                               0x0C);
 841                                                 xgifb_reg_set(XGIPART2,
 842                                                               0x37,
 843                                                               0x22);
 844                                                 xgifb_reg_set(XGIPART2,
 845                                                               0x38,
 846                                                               0x08);
 847                                                 break;
 848                                         case 800:
 849                                                 xgifb_reg_set(XGIPART2,
 850                                                               0x35,
 851                                                               0xEB);
 852                                                 xgifb_reg_set(XGIPART2,
 853                                                               0x36,
 854                                                               0x15);
 855                                                 xgifb_reg_set(XGIPART2,
 856                                                               0x37,
 857                                                               0x25);
 858                                                 xgifb_reg_set(XGIPART2,
 859                                                               0x38,
 860                                                               0xF6);
 861                                                 break;
 862                                         }
 863                                 }
 864
 865                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 866
 867                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 868
 869                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 870
 871                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 872
 873                                 } else if (xgifb_info->TV_plug
 874                                                 == TVPLUG_COMPOSITE) {
 875
 876                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 877
 878                                         switch (xgifb_info->video_width) {
 879                                         case 640:
 880                                                 xgifb_reg_set(XGIPART2,
 881                                                               0x35,
 882                                                               0xF1);
 883                                                 xgifb_reg_set(XGIPART2,
 884                                                               0x36,
 885                                                               0xF7);
 886                                                 xgifb_reg_set(XGIPART2,
 887                                                               0x37,
 888                                                               0x1F);
 889                                                 xgifb_reg_set(XGIPART2,
 890                                                               0x38,
 891                                                               0x32);
 892                                                 break;
 893                                         case 720:
 894                                                 xgifb_reg_set(XGIPART2,
 895                                                               0x35,
 896                                                               0xF3);
 897                                                 xgifb_reg_set(XGIPART2,
 898                                                               0x36,
 899                                                               0x00);
 900                                                 xgifb_reg_set(XGIPART2,
 901                                                               0x37,
 902                                                               0x1D);
 903                                                 xgifb_reg_set(XGIPART2,
 904                                                               0x38,
 905                                                               0x20);
 906                                                 break;
 907                                         case 800:
 908                                                 xgifb_reg_set(XGIPART2,
 909                                                               0x35,
 910                                                               0xFC);
 911                                                 xgifb_reg_set(XGIPART2,
 912                                                               0x36,
 913                                                               0xFB);
 914                                                 xgifb_reg_set(XGIPART2,
 915                                                               0x37,
 916                                                               0x14);
 917                                                 xgifb_reg_set(XGIPART2,
 918                                                               0x38,
 919                                                               0x2A);
 920                                                 break;
 921                                         }
 922                                 }
 923                         }
 924
 925                         if ((filter >= 0) && (filter <= 7)) {
 926                                 pr_debug("FilterTable[%d]-%d: %02x %02x %02x %02x\n",
 927                                          filter_tb, filter,
 928                                          XGI_TV_filter[filter_tb].
 929                                                 filter[filter][0],
 930                                          XGI_TV_filter[filter_tb].
 931                                                 filter[filter][1],
 932                                          XGI_TV_filter[filter_tb].
 933                                                 filter[filter][2],
 934                                          XGI_TV_filter[filter_tb].
 935                                                 filter[filter][3]
 936                                 );
 937                                 xgifb_reg_set(
 938                                         XGIPART2,
 939                                         0x35,
 940                                         (XGI_TV_filter[filter_tb].
 941                                                 filter[filter][0]));
 942                                 xgifb_reg_set(
 943                                         XGIPART2,
 944                                         0x36,
 945                                         (XGI_TV_filter[filter_tb].
 946                                                 filter[filter][1]));
 947                                 xgifb_reg_set(
 948                                         XGIPART2,
 949                                         0x37,
 950                                         (XGI_TV_filter[filter_tb].
 951                                                 filter[filter][2]));
 952                                 xgifb_reg_set(
 953                                         XGIPART2,
 954                                         0x38,
 955                                         (XGI_TV_filter[filter_tb].
 956                                                 filter[filter][3]));
 957                         }
 958                 }
 959         }
 960 }
 961
 962 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 963                 struct fb_info *info)
 964 {
 965         struct xgifb_video_info *xgifb_info = info->par;
 966         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 967         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 968                         + var->hsync_len;
 969         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 970                         + var->vsync_len;
 971 #if defined(__powerpc__)
 972         u8 cr_data;
 973 #endif
 974         unsigned int drate = 0, hrate = 0;
 975         int found_mode = 0;
 976         int old_mode;
 977
 978         info->var.xres_virtual = var->xres_virtual;
 979         info->var.yres_virtual = var->yres_virtual;
 980         info->var.bits_per_pixel = var->bits_per_pixel;
 981
 982         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 983                 vtotal <<= 1;
 984         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 985                 vtotal <<= 2;
 986         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
 987         }
 988
 989         if (!htotal || !vtotal) {
 990                 pr_debug("Invalid 'var' information\n");
 991                 return -EINVAL;
 992         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 993                         var->pixclock, htotal, vtotal);
 994
 995         if (var->pixclock && htotal && vtotal) {
 996                 drate = 1000000000 / var->pixclock;
 997                 hrate = (drate * 1000) / htotal;
 998                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 999                                 / vtotal);
1000         } else {
1001                 xgifb_info->refresh_rate = 60;
1002         }
1003
1004         pr_debug("Change mode to %dx%dx%d-%dHz\n",
1005                var->xres,
1006                var->yres,
1007                var->bits_per_pixel,
1008                xgifb_info->refresh_rate);
1009
1010         old_mode = xgifb_info->mode_idx;
1011         xgifb_info->mode_idx = 0;
1012
1013         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
1014                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
1015                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
1016                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
1017                     (XGIbios_mode[xgifb_info->mode_idx].bpp
1018                                                 == var->bits_per_pixel)) {
1019                         found_mode = 1;
1020                         break;
1021                 }
1022                 xgifb_info->mode_idx++;
1023         }
1024
1025         if (found_mode)
1026                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
1027                                                         xgifb_info->mode_idx);
1028         else
1029                 xgifb_info->mode_idx = -1;
1030
1031         if (xgifb_info->mode_idx < 0) {
1032                 pr_err("Mode %dx%dx%d not supported\n",
1033                        var->xres, var->yres, var->bits_per_pixel);
1034                 xgifb_info->mode_idx = old_mode;
1035                 return -EINVAL;
1036         }
1037
1038         if (XGIfb_search_refresh_rate(xgifb_info,
1039                                       xgifb_info->refresh_rate) == 0) {
1040                 xgifb_info->rate_idx = 1;
1041                 xgifb_info->refresh_rate = 60;
1042         }
1043
1044         if (isactive) {
1045
1046                 XGIfb_pre_setmode(xgifb_info);
1047                 if (XGISetModeNew(xgifb_info, hw_info,
1048                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1049                                         == 0) {
1050                         pr_err("Setting mode[0x%x] failed\n",
1051                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1052                         return -EINVAL;
1053                 }
1054                 info->fix.line_length = ((info->var.xres_virtual
1055                                 * info->var.bits_per_pixel) >> 6);
1056
1057                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1058
1059                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1060                 xgifb_reg_set(XGISR,
1061                               0x0E,
1062                               (info->fix.line_length & 0xff00) >> 8);
1063
1064                 XGIfb_post_setmode(xgifb_info);
1065
1066                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1067                          XGIbios_mode[xgifb_info->mode_idx].xres,
1068                          XGIbios_mode[xgifb_info->mode_idx].yres,
1069                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1070                          xgifb_info->refresh_rate);
1071
1072                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1073                 xgifb_info->video_vwidth = info->var.xres_virtual;
1074                 xgifb_info->video_width =
1075                         XGIbios_mode[xgifb_info->mode_idx].xres;
1076                 xgifb_info->video_vheight = info->var.yres_virtual;
1077                 xgifb_info->video_height =
1078                         XGIbios_mode[xgifb_info->mode_idx].yres;
1079                 xgifb_info->org_x = xgifb_info->org_y = 0;
1080                 xgifb_info->video_linelength = info->var.xres_virtual
1081                                 * (xgifb_info->video_bpp >> 3);
1082                 switch (xgifb_info->video_bpp) {
1083                 case 8:
1084                         xgifb_info->DstColor = 0x0000;
1085                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1086                         xgifb_info->video_cmap_len = 256;
1087 #if defined(__powerpc__)
1088                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1089                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1090 #endif
1091                         break;
1092                 case 16:
1093                         xgifb_info->DstColor = 0x8000;
1094                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1095 #if defined(__powerpc__)
1096                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1097                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1098 #endif
1099                         xgifb_info->video_cmap_len = 16;
1100                         break;
1101                 case 32:
1102                         xgifb_info->DstColor = 0xC000;
1103                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1104                         xgifb_info->video_cmap_len = 16;
1105 #if defined(__powerpc__)
1106                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1107                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1108 #endif
1109                         break;
1110                 default:
1111                         xgifb_info->video_cmap_len = 16;
1112                         pr_err("Unsupported depth %d\n",
1113                                xgifb_info->video_bpp);
1114                         break;
1115                 }
1116         }
1117         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1118
1119         dumpVGAReg();
1120         return 0;
1121 }
1122
1123 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1124 {
1125         struct xgifb_video_info *xgifb_info = info->par;
1126         unsigned int base;
1127
1128         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1129
1130         /* calculate base bpp dep. */
1131         switch (info->var.bits_per_pixel) {
1132         case 16:
1133                 base >>= 1;
1134                 break;
1135         case 32:
1136                 break;
1137         case 8:
1138         default:
1139                 base >>= 2;
1140                 break;
1141         }
1142
1143         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1144
1145         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1146         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1147         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1148         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1149         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1150
1151         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1152                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1153                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1154                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1155                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1156                 xgifb_reg_and_or(XGIPART1,
1157                                  0x02,
1158                                  0x7F,
1159                                  ((base >> 24) & 0x01) << 7);
1160         }
1161         return 0;
1162 }
1163
1164 static int XGIfb_open(struct fb_info *info, int user)
1165 {
1166         return 0;
1167 }
1168
1169 static int XGIfb_release(struct fb_info *info, int user)
1170 {
1171         return 0;
1172 }
1173
1174 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1175 {
1176         int rc = 16;
1177
1178         switch (var->bits_per_pixel) {
1179         case 8:
1180                 rc = 256;
1181                 break;
1182         case 16:
1183                 rc = 16;
1184                 break;
1185         case 32:
1186                 rc = 16;
1187                 break;
1188         }
1189         return rc;
1190 }
1191
1192 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1193                 unsigned blue, unsigned transp, struct fb_info *info)
1194 {
1195         struct xgifb_video_info *xgifb_info = info->par;
1196
1197         if (regno >= XGIfb_get_cmap_len(&info->var))
1198                 return 1;
1199
1200         switch (info->var.bits_per_pixel) {
1201         case 8:
1202                 outb(regno, XGIDACA);
1203                 outb((red >> 10), XGIDACD);
1204                 outb((green >> 10), XGIDACD);
1205                 outb((blue >> 10), XGIDACD);
1206                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1207                         outb(regno, XGIDAC2A);
1208                         outb((red >> 8), XGIDAC2D);
1209                         outb((green >> 8), XGIDAC2D);
1210                         outb((blue >> 8), XGIDAC2D);
1211                 }
1212                 break;
1213         case 16:
1214                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1215                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1216                                 >> 11);
1217                 break;
1218         case 32:
1219                 red >>= 8;
1220                 green >>= 8;
1221                 blue >>= 8;
1222                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1223                                 << 8) | (blue);
1224                 break;
1225         }
1226         return 0;
1227 }
1228
1229 /* ----------- FBDev related routines for all series ---------- */
1230
1231 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1232                 struct fb_info *info)
1233 {
1234         struct xgifb_video_info *xgifb_info = info->par;
1235
1236         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1237
1238         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1239
1240         /* if register_framebuffer has been called, we must lock */
1241         if (atomic_read(&info->count))
1242                 mutex_lock(&info->mm_lock);
1243
1244         fix->smem_start = xgifb_info->video_base;
1245         fix->smem_len = xgifb_info->video_size;
1246
1247         /* if register_framebuffer has been called, we can unlock */
1248         if (atomic_read(&info->count))
1249                 mutex_unlock(&info->mm_lock);
1250
1251         fix->type = FB_TYPE_PACKED_PIXELS;
1252         fix->type_aux = 0;
1253         if (xgifb_info->video_bpp == 8)
1254                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1255         else
1256                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1257         fix->xpanstep = 0;
1258         if (XGIfb_ypan)
1259                 fix->ypanstep = 1;
1260         fix->ywrapstep = 0;
1261         fix->line_length = xgifb_info->video_linelength;
1262         fix->mmio_start = xgifb_info->mmio_base;
1263         fix->mmio_len = xgifb_info->mmio_size;
1264         fix->accel = FB_ACCEL_SIS_XABRE;
1265
1266         return 0;
1267 }
1268
1269 static int XGIfb_set_par(struct fb_info *info)
1270 {
1271         int err;
1272
1273         err = XGIfb_do_set_var(&info->var, 1, info);
1274         if (err)
1275                 return err;
1276         XGIfb_get_fix(&info->fix, -1, info);
1277         return 0;
1278 }
1279
1280 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1281 {
1282         struct xgifb_video_info *xgifb_info = info->par;
1283         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1284                         + var->hsync_len;
1285         unsigned int vtotal = 0;
1286         unsigned int drate = 0, hrate = 0;
1287         int found_mode = 0;
1288         int refresh_rate, search_idx;
1289
1290         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1291                 vtotal = var->upper_margin + var->yres + var->lower_margin
1292                                 + var->vsync_len;
1293                 vtotal <<= 1;
1294         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1295                 vtotal = var->upper_margin + var->yres + var->lower_margin
1296                                 + var->vsync_len;
1297                 vtotal <<= 2;
1298         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1299                 vtotal = var->upper_margin + (var->yres / 2)
1300                                 + var->lower_margin + var->vsync_len;
1301         } else
1302                 vtotal = var->upper_margin + var->yres + var->lower_margin
1303                                 + var->vsync_len;
1304
1305         if (!(htotal) || !(vtotal)) {
1306                 pr_debug("No valid timing data\n");
1307                 return -EINVAL;
1308         }
1309
1310         if (var->pixclock && htotal && vtotal) {
1311                 drate = 1000000000 / var->pixclock;
1312                 hrate = (drate * 1000) / htotal;
1313                 xgifb_info->refresh_rate =
1314                         (unsigned int) (hrate * 2 / vtotal);
1315                 pr_debug(
1316                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1317                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1318                         __func__, var->pixclock, htotal, vtotal,
1319                         __func__, drate, hrate, xgifb_info->refresh_rate);
1320         } else {
1321                 xgifb_info->refresh_rate = 60;
1322         }
1323
1324         /* Calculation wrong for 1024x600 - force it to 60Hz */
1325         if ((var->xres == 1024) && (var->yres == 600))
1326                 refresh_rate = 60;
1327
1328         search_idx = 0;
1329         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1330                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1331                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1332                         (XGIbios_mode[search_idx].yres == var->yres) &&
1333                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1334                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1335                                 found_mode = 1;
1336                                 break;
1337                         }
1338                 }
1339                 search_idx++;
1340         }
1341
1342         if (!found_mode) {
1343
1344                 pr_err("%dx%dx%d is no valid mode\n",
1345                         var->xres, var->yres, var->bits_per_pixel);
1346                 search_idx = 0;
1347                 while (XGIbios_mode[search_idx].mode_no != 0) {
1348                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1349                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1350                             (var->bits_per_pixel ==
1351                              XGIbios_mode[search_idx].bpp)) {
1352                                 if (XGIfb_validate_mode(xgifb_info,
1353                                                         search_idx) > 0) {
1354                                         found_mode = 1;
1355                                         break;
1356                                 }
1357                         }
1358                         search_idx++;
1359                 }
1360                 if (found_mode) {
1361                         var->xres = XGIbios_mode[search_idx].xres;
1362                         var->yres = XGIbios_mode[search_idx].yres;
1363                         pr_debug("Adapted to mode %dx%dx%d\n",
1364                                 var->xres, var->yres, var->bits_per_pixel);
1365
1366                 } else {
1367                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1368                                 var->xres, var->yres, var->bits_per_pixel);
1369                         return -EINVAL;
1370                 }
1371         }
1372
1373         /* Adapt RGB settings */
1374         XGIfb_bpp_to_var(xgifb_info, var);
1375
1376         /* Sanity check for offsets */
1377         if (var->xoffset < 0)
1378                 var->xoffset = 0;
1379         if (var->yoffset < 0)
1380                 var->yoffset = 0;
1381
1382         if (!XGIfb_ypan) {
1383                 if (var->xres != var->xres_virtual)
1384                         var->xres_virtual = var->xres;
1385                 if (var->yres != var->yres_virtual)
1386                         var->yres_virtual = var->yres;
1387         }
1388
1389         /* Truncate offsets to maximum if too high */
1390         if (var->xoffset > var->xres_virtual - var->xres)
1391                 var->xoffset = var->xres_virtual - var->xres - 1;
1392
1393         if (var->yoffset > var->yres_virtual - var->yres)
1394                 var->yoffset = var->yres_virtual - var->yres - 1;
1395
1396         /* Set everything else to 0 */
1397         var->red.msb_right =
1398         var->green.msb_right =
1399         var->blue.msb_right =
1400         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1401
1402         return 0;
1403 }
1404
1405 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1406                 struct fb_info *info)
1407 {
1408         int err;
1409
1410         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1411                 return -EINVAL;
1412         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1413                 return -EINVAL;
1414
1415         if (var->vmode & FB_VMODE_YWRAP) {
1416                 if (var->yoffset < 0 || var->yoffset >= info->var.yres_virtual
1417                                 || var->xoffset)
1418                         return -EINVAL;
1419         } else {
1420                 if (var->xoffset + info->var.xres > info->var.xres_virtual
1421                                 || var->yoffset + info->var.yres
1422                                                 > info->var.yres_virtual)
1423                         return -EINVAL;
1424         }
1425         err = XGIfb_pan_var(var, info);
1426         if (err < 0)
1427                 return err;
1428
1429         info->var.xoffset = var->xoffset;
1430         info->var.yoffset = var->yoffset;
1431         if (var->vmode & FB_VMODE_YWRAP)
1432                 info->var.vmode |= FB_VMODE_YWRAP;
1433         else
1434                 info->var.vmode &= ~FB_VMODE_YWRAP;
1435
1436         return 0;
1437 }
1438
1439 static int XGIfb_blank(int blank, struct fb_info *info)
1440 {
1441         struct xgifb_video_info *xgifb_info = info->par;
1442         u8 reg;
1443
1444         reg = xgifb_reg_get(XGICR, 0x17);
1445
1446         if (blank > 0)
1447                 reg &= 0x7f;
1448         else
1449                 reg |= 0x80;
1450
1451         xgifb_reg_set(XGICR, 0x17, reg);
1452         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1453         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1454         return 0;
1455 }
1456
1457 static struct fb_ops XGIfb_ops = {
1458         .owner = THIS_MODULE,
1459         .fb_open = XGIfb_open,
1460         .fb_release = XGIfb_release,
1461         .fb_check_var = XGIfb_check_var,
1462         .fb_set_par = XGIfb_set_par,
1463         .fb_setcolreg = XGIfb_setcolreg,
1464         .fb_pan_display = XGIfb_pan_display,
1465         .fb_blank = XGIfb_blank,
1466         .fb_fillrect = cfb_fillrect,
1467         .fb_copyarea = cfb_copyarea,
1468         .fb_imageblit = cfb_imageblit,
1469 };
1470
1471 /* ---------------- Chip generation dependent routines ---------------- */
1472
1473 /* for XGI 315/550/650/740/330 */
1474
1475 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1476 {
1477
1478         u8 ChannelNum, tmp;
1479         u8 reg = 0;
1480
1481         /* xorg driver sets 32MB * 1 channel */
1482         if (xgifb_info->chip == XG27)
1483                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1484
1485         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1486         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1487         case XGI_DRAM_SIZE_1MB:
1488                 xgifb_info->video_size = 0x100000;
1489                 break;
1490         case XGI_DRAM_SIZE_2MB:
1491                 xgifb_info->video_size = 0x200000;
1492                 break;
1493         case XGI_DRAM_SIZE_4MB:
1494                 xgifb_info->video_size = 0x400000;
1495                 break;
1496         case XGI_DRAM_SIZE_8MB:
1497                 xgifb_info->video_size = 0x800000;
1498                 break;
1499         case XGI_DRAM_SIZE_16MB:
1500                 xgifb_info->video_size = 0x1000000;
1501                 break;
1502         case XGI_DRAM_SIZE_32MB:
1503                 xgifb_info->video_size = 0x2000000;
1504                 break;
1505         case XGI_DRAM_SIZE_64MB:
1506                 xgifb_info->video_size = 0x4000000;
1507                 break;
1508         case XGI_DRAM_SIZE_128MB:
1509                 xgifb_info->video_size = 0x8000000;
1510                 break;
1511         case XGI_DRAM_SIZE_256MB:
1512                 xgifb_info->video_size = 0x10000000;
1513                 break;
1514         default:
1515                 return -1;
1516         }
1517
1518         tmp = (reg & 0x0c) >> 2;
1519         switch (xgifb_info->chip) {
1520         case XG20:
1521         case XG21:
1522         case XG27:
1523                 ChannelNum = 1;
1524                 break;
1525
1526         case XG42:
1527                 if (reg & 0x04)
1528                         ChannelNum = 2;
1529                 else
1530                         ChannelNum = 1;
1531                 break;
1532
1533         case XG40:
1534         default:
1535                 if (tmp == 2)
1536                         ChannelNum = 2;
1537                 else if (tmp == 3)
1538                         ChannelNum = 3;
1539                 else
1540                         ChannelNum = 1;
1541                 break;
1542         }
1543
1544         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1545
1546         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1547                reg,
1548                xgifb_info->video_size, ChannelNum);
1549         return 0;
1550
1551 }
1552
1553 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1554 {
1555         u8 cr32, temp = 0;
1556
1557         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1558
1559         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1560
1561         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1562                 XGIfb_crt1off = 0;
1563         else {
1564                 if (cr32 & 0x5F)
1565                         XGIfb_crt1off = 1;
1566                 else
1567                         XGIfb_crt1off = 0;
1568         }
1569
1570         if (!xgifb_info->display2_force) {
1571                 if (cr32 & SIS_VB_TV)
1572                         xgifb_info->display2 = XGIFB_DISP_TV;
1573                 else if (cr32 & SIS_VB_LCD)
1574                         xgifb_info->display2 = XGIFB_DISP_LCD;
1575                 else if (cr32 & SIS_VB_CRT2)
1576                         xgifb_info->display2 = XGIFB_DISP_CRT;
1577                 else
1578                         xgifb_info->display2 = XGIFB_DISP_NONE;
1579         }
1580
1581         if (XGIfb_tvplug != -1)
1582                 /* Override with option */
1583                 xgifb_info->TV_plug = XGIfb_tvplug;
1584         else if (cr32 & SIS_VB_HIVISION) {
1585                 xgifb_info->TV_type = TVMODE_HIVISION;
1586                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1587         } else if (cr32 & SIS_VB_SVIDEO)
1588                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1589         else if (cr32 & SIS_VB_COMPOSITE)
1590                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1591         else if (cr32 & SIS_VB_SCART)
1592                 xgifb_info->TV_plug = TVPLUG_SCART;
1593
1594         if (xgifb_info->TV_type == 0) {
1595                 temp = xgifb_reg_get(XGICR, 0x38);
1596                 if (temp & 0x10)
1597                         xgifb_info->TV_type = TVMODE_PAL;
1598                 else
1599                         xgifb_info->TV_type = TVMODE_NTSC;
1600         }
1601
1602         /* Copy forceCRT1 option to CRT1off if option is given */
1603         if (XGIfb_forcecrt1 != -1) {
1604                 if (XGIfb_forcecrt1)
1605                         XGIfb_crt1off = 0;
1606                 else
1607                         XGIfb_crt1off = 1;
1608         }
1609 }
1610
1611 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1612 {
1613         u8 vb_chipid;
1614
1615         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1616         switch (vb_chipid) {
1617         case 0x01:
1618                 xgifb_info->hasVB = HASVB_301;
1619                 break;
1620         case 0x02:
1621                 xgifb_info->hasVB = HASVB_302;
1622                 break;
1623         default:
1624                 xgifb_info->hasVB = HASVB_NONE;
1625                 return 0;
1626         }
1627         return 1;
1628 }
1629
1630 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1631 {
1632         u8 reg;
1633
1634         if (!XGIfb_has_VB(xgifb_info)) {
1635                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1636                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1637                 case SIS_EXTERNAL_CHIP_LVDS:
1638                         xgifb_info->hasVB = HASVB_LVDS;
1639                         break;
1640                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1641                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1642                         break;
1643                 default:
1644                         break;
1645                 }
1646         }
1647 }
1648
1649 static int __init xgifb_optval(char *fullopt, int validx)
1650 {
1651         unsigned long lres;
1652
1653         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1654                 pr_err("Invalid value for option: %s\n", fullopt);
1655                 return 0;
1656         }
1657         return lres;
1658 }
1659
1660 static int __init XGIfb_setup(char *options)
1661 {
1662         char *this_opt;
1663
1664         if (!options || !*options)
1665                 return 0;
1666
1667         pr_info("Options: %s\n", options);
1668
1669         while ((this_opt = strsep(&options, ",")) != NULL) {
1670
1671                 if (!*this_opt)
1672                         continue;
1673
1674                 if (!strncmp(this_opt, "mode:", 5)) {
1675                         mode = this_opt + 5;
1676                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1677                         vesa = xgifb_optval(this_opt, 5);
1678                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1679                         refresh_rate = xgifb_optval(this_opt, 6);
1680                 } else if (!strncmp(this_opt, "rate:", 5)) {
1681                         refresh_rate = xgifb_optval(this_opt, 5);
1682                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1683                         XGIfb_crt1off = 1;
1684                 } else if (!strncmp(this_opt, "filter:", 7)) {
1685                         filter = xgifb_optval(this_opt, 7);
1686                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1687                         XGIfb_search_crt2type(this_opt + 14);
1688                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1689                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1690                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1691                         XGIfb_search_tvstd(this_opt + 7);
1692                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1693                         XGIfb_search_tvstd(this_opt + 7);
1694                 } else if (!strncmp(this_opt, "dstn", 4)) {
1695                         enable_dstn = 1;
1696                         /* DSTN overrules forcecrt2type */
1697                         XGIfb_crt2type = XGIFB_DISP_LCD;
1698                 } else if (!strncmp(this_opt, "noypan", 6)) {
1699                         XGIfb_ypan = 0;
1700                 } else {
1701                         mode = this_opt;
1702                 }
1703         }
1704         return 0;
1705 }
1706
1707 static int __devinit xgifb_probe(struct pci_dev *pdev,
1708                 const struct pci_device_id *ent)
1709 {
1710         u8 reg, reg1;
1711         u8 CR48, CR38;
1712         int ret;
1713         struct fb_info *fb_info;
1714         struct xgifb_video_info *xgifb_info;
1715         struct xgi_hw_device_info *hw_info;
1716
1717         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1718         if (!fb_info)
1719                 return -ENOMEM;
1720
1721         xgifb_info = fb_info->par;
1722         hw_info = &xgifb_info->hw_info;
1723         xgifb_info->fb_info = fb_info;
1724         xgifb_info->chip_id = pdev->device;
1725         pci_read_config_byte(pdev,
1726                              PCI_REVISION_ID,
1727                              &xgifb_info->revision_id);
1728         hw_info->jChipRevision = xgifb_info->revision_id;
1729
1730         xgifb_info->pcibus = pdev->bus->number;
1731         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1732         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1733         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1734         xgifb_info->subsysdevice = pdev->subsystem_device;
1735
1736         xgifb_info->video_base = pci_resource_start(pdev, 0);
1737         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1738         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1739         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1740         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1741                  (u64) pci_resource_start(pdev, 2),
1742                  xgifb_info->vga_base);
1743
1744         if (pci_enable_device(pdev)) {
1745                 ret = -EIO;
1746                 goto error;
1747         }
1748
1749         if (XGIfb_crt2type != -1) {
1750                 xgifb_info->display2 = XGIfb_crt2type;
1751                 xgifb_info->display2_force = true;
1752         }
1753
1754         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1755
1756         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1757         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1758
1759         if (reg1 != 0xa1) { /*I/O error */
1760                 dev_err(&pdev->dev, "I/O error\n");
1761                 ret = -EIO;
1762                 goto error_disable;
1763         }
1764
1765         switch (xgifb_info->chip_id) {
1766         case PCI_DEVICE_ID_XGI_20:
1767                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1768                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1769                 if (CR48&GPIOG_READ)
1770                         xgifb_info->chip = XG21;
1771                 else
1772                         xgifb_info->chip = XG20;
1773                 break;
1774         case PCI_DEVICE_ID_XGI_40:
1775                 xgifb_info->chip = XG40;
1776                 break;
1777         case PCI_DEVICE_ID_XGI_42:
1778                 xgifb_info->chip = XG42;
1779                 break;
1780         case PCI_DEVICE_ID_XGI_27:
1781                 xgifb_info->chip = XG27;
1782                 break;
1783         default:
1784                 ret = -ENODEV;
1785                 goto error_disable;
1786         }
1787
1788         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1789         hw_info->jChipType = xgifb_info->chip;
1790
1791         if (XGIfb_get_dram_size(xgifb_info)) {
1792                 dev_err(&pdev->dev,
1793                         "Fatal error: Unable to determine RAM size.\n");
1794                 ret = -ENODEV;
1795                 goto error_disable;
1796         }
1797
1798         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1799         xgifb_reg_or(XGISR,
1800                      IND_SIS_PCI_ADDRESS_SET,
1801                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1802         /* Enable 2D accelerator engine */
1803         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1804
1805         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1806
1807         if (!request_mem_region(xgifb_info->video_base,
1808                                 xgifb_info->video_size,
1809                                 "XGIfb FB")) {
1810                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1811                        xgifb_info->video_size);
1812                 dev_err(&pdev->dev,
1813                         "Fatal error: Unable to reserve frame buffer memory. "
1814                         "Is there another framebuffer driver active?\n");
1815                 ret = -ENODEV;
1816                 goto error_disable;
1817         }
1818
1819         if (!request_mem_region(xgifb_info->mmio_base,
1820                                 xgifb_info->mmio_size,
1821                                 "XGIfb MMIO")) {
1822                 dev_err(&pdev->dev,
1823                         "Fatal error: Unable to reserve MMIO region\n");
1824                 ret = -ENODEV;
1825                 goto error_0;
1826         }
1827
1828         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1829         ioremap(xgifb_info->video_base, xgifb_info->video_size);
1830         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1831                                             xgifb_info->mmio_size);
1832
1833         dev_info(&pdev->dev,
1834                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1835                  (u64) xgifb_info->video_base,
1836                  xgifb_info->video_vbase,
1837                  xgifb_info->video_size / 1024);
1838
1839         dev_info(&pdev->dev,
1840                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1841                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1842                  xgifb_info->mmio_size / 1024);
1843
1844         pci_set_drvdata(pdev, xgifb_info);
1845         if (!XGIInitNew(pdev))
1846                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1847
1848         xgifb_info->mtrr = (unsigned int) 0;
1849
1850         xgifb_info->hasVB = HASVB_NONE;
1851         if ((xgifb_info->chip == XG20) ||
1852             (xgifb_info->chip == XG27)) {
1853                 xgifb_info->hasVB = HASVB_NONE;
1854         } else if (xgifb_info->chip == XG21) {
1855                 CR38 = xgifb_reg_get(XGICR, 0x38);
1856                 if ((CR38&0xE0) == 0xC0)
1857                         xgifb_info->display2 = XGIFB_DISP_LCD;
1858                 else if ((CR38&0xE0) == 0x60)
1859                         xgifb_info->hasVB = HASVB_CHRONTEL;
1860                 else
1861                         xgifb_info->hasVB = HASVB_NONE;
1862         } else {
1863                 XGIfb_get_VB_type(xgifb_info);
1864         }
1865
1866         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1867
1868         hw_info->ulExternalChip = 0;
1869
1870         switch (xgifb_info->hasVB) {
1871         case HASVB_301:
1872                 reg = xgifb_reg_get(XGIPART4, 0x01);
1873                 if (reg >= 0xE0) {
1874                         hw_info->ujVBChipID = VB_CHIP_302LV;
1875                         dev_info(&pdev->dev,
1876                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1877                                  reg);
1878                 } else if (reg >= 0xD0) {
1879                         hw_info->ujVBChipID = VB_CHIP_301LV;
1880                         dev_info(&pdev->dev,
1881                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1882                                  reg);
1883                 } else {
1884                         hw_info->ujVBChipID = VB_CHIP_301;
1885                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1886                 }
1887                 break;
1888         case HASVB_302:
1889                 reg = xgifb_reg_get(XGIPART4, 0x01);
1890                 if (reg >= 0xE0) {
1891                         hw_info->ujVBChipID = VB_CHIP_302LV;
1892                         dev_info(&pdev->dev,
1893                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1894                                  reg);
1895                 } else if (reg >= 0xD0) {
1896                         hw_info->ujVBChipID = VB_CHIP_301LV;
1897                         dev_info(&pdev->dev,
1898                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1899                                  reg);
1900                 } else if (reg >= 0xB0) {
1901                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1902
1903                         hw_info->ujVBChipID = VB_CHIP_302B;
1904
1905                 } else {
1906                         hw_info->ujVBChipID = VB_CHIP_302;
1907                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1908                 }
1909                 break;
1910         case HASVB_LVDS:
1911                 hw_info->ulExternalChip = 0x1;
1912                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1913                 break;
1914         case HASVB_TRUMPION:
1915                 hw_info->ulExternalChip = 0x2;
1916                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1917                 break;
1918         case HASVB_CHRONTEL:
1919                 hw_info->ulExternalChip = 0x4;
1920                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1921                 break;
1922         case HASVB_LVDS_CHRONTEL:
1923                 hw_info->ulExternalChip = 0x5;
1924                 dev_info(&pdev->dev,
1925                          "LVDS transmitter and Chrontel TV encoder detected\n");
1926                 break;
1927         default:
1928                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1929                 break;
1930         }
1931
1932         if (xgifb_info->hasVB != HASVB_NONE)
1933                 XGIfb_detect_VB(xgifb_info);
1934         else if (xgifb_info->chip != XG21)
1935                 xgifb_info->display2 = XGIFB_DISP_NONE;
1936
1937         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1938                 if (!enable_dstn) {
1939                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1940                         reg &= 0x0f;
1941                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1942                 }
1943         }
1944
1945         xgifb_info->mode_idx = -1;
1946
1947         if (mode)
1948                 XGIfb_search_mode(xgifb_info, mode);
1949         else if (vesa != -1)
1950                 XGIfb_search_vesamode(xgifb_info, vesa);
1951
1952         if (xgifb_info->mode_idx >= 0)
1953                 xgifb_info->mode_idx =
1954                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1955
1956         if (xgifb_info->mode_idx < 0) {
1957                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1958                     xgifb_info->chip == XG21)
1959                         xgifb_info->mode_idx =
1960                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1961                 else
1962                         xgifb_info->mode_idx = DEFAULT_MODE;
1963         }
1964
1965         if (xgifb_info->mode_idx < 0) {
1966                 dev_err(&pdev->dev, "No supported video mode found\n");
1967                 goto error_1;
1968         }
1969
1970         /* set default refresh rate */
1971         xgifb_info->refresh_rate = refresh_rate;
1972         if (xgifb_info->refresh_rate == 0)
1973                 xgifb_info->refresh_rate = 60;
1974         if (XGIfb_search_refresh_rate(xgifb_info,
1975                         xgifb_info->refresh_rate) == 0) {
1976                 xgifb_info->rate_idx = 1;
1977                 xgifb_info->refresh_rate = 60;
1978         }
1979
1980         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1981         xgifb_info->video_vwidth =
1982                 xgifb_info->video_width =
1983                         XGIbios_mode[xgifb_info->mode_idx].xres;
1984         xgifb_info->video_vheight =
1985                 xgifb_info->video_height =
1986                         XGIbios_mode[xgifb_info->mode_idx].yres;
1987         xgifb_info->org_x = xgifb_info->org_y = 0;
1988         xgifb_info->video_linelength =
1989                 xgifb_info->video_width *
1990                 (xgifb_info->video_bpp >> 3);
1991         switch (xgifb_info->video_bpp) {
1992         case 8:
1993                 xgifb_info->DstColor = 0x0000;
1994                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1995                 xgifb_info->video_cmap_len = 256;
1996                 break;
1997         case 16:
1998                 xgifb_info->DstColor = 0x8000;
1999                 xgifb_info->XGI310_AccelDepth = 0x00010000;
2000                 xgifb_info->video_cmap_len = 16;
2001                 break;
2002         case 32:
2003                 xgifb_info->DstColor = 0xC000;
2004                 xgifb_info->XGI310_AccelDepth = 0x00020000;
2005                 xgifb_info->video_cmap_len = 16;
2006                 break;
2007         default:
2008                 xgifb_info->video_cmap_len = 16;
2009                 pr_info("Unsupported depth %d\n",
2010                        xgifb_info->video_bpp);
2011                 break;
2012         }
2013
2014         pr_info("Default mode is %dx%dx%d (%dHz)\n",
2015                xgifb_info->video_width,
2016                xgifb_info->video_height,
2017                xgifb_info->video_bpp,
2018                xgifb_info->refresh_rate);
2019
2020         fb_info->var.red.length         = 8;
2021         fb_info->var.green.length       = 8;
2022         fb_info->var.blue.length        = 8;
2023         fb_info->var.activate           = FB_ACTIVATE_NOW;
2024         fb_info->var.height             = -1;
2025         fb_info->var.width              = -1;
2026         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
2027         fb_info->var.xres               = xgifb_info->video_width;
2028         fb_info->var.xres_virtual       = xgifb_info->video_width;
2029         fb_info->var.yres               = xgifb_info->video_height;
2030         fb_info->var.yres_virtual       = xgifb_info->video_height;
2031         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
2032
2033         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
2034
2035         fb_info->var.pixclock = (u32) (1000000000 /
2036                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
2037                                 hw_info,
2038                                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2039                                 xgifb_info->rate_idx));
2040
2041         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
2042                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2043                 xgifb_info->rate_idx,
2044                 &fb_info->var.left_margin,
2045                 &fb_info->var.right_margin,
2046                 &fb_info->var.upper_margin,
2047                 &fb_info->var.lower_margin,
2048                 &fb_info->var.hsync_len,
2049                 &fb_info->var.vsync_len,
2050                 &fb_info->var.sync,
2051                 &fb_info->var.vmode)) {
2052
2053                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2054                     FB_VMODE_INTERLACED) {
2055                         fb_info->var.yres <<= 1;
2056                         fb_info->var.yres_virtual <<= 1;
2057                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2058                            FB_VMODE_DOUBLE) {
2059                         fb_info->var.pixclock >>= 1;
2060                         fb_info->var.yres >>= 1;
2061                         fb_info->var.yres_virtual >>= 1;
2062                 }
2063
2064         }
2065
2066         fb_info->flags = FBINFO_FLAG_DEFAULT;
2067         fb_info->screen_base = xgifb_info->video_vbase;
2068         fb_info->fbops = &XGIfb_ops;
2069         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2070         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2071
2072         fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2073
2074 #ifdef CONFIG_MTRR
2075         xgifb_info->mtrr = mtrr_add(xgifb_info->video_base,
2076                 xgifb_info->video_size, MTRR_TYPE_WRCOMB, 1);
2077         if (xgifb_info->mtrr >= 0)
2078                 dev_info(&pdev->dev, "Added MTRR\n");
2079 #endif
2080
2081         if (register_framebuffer(fb_info) < 0) {
2082                 ret = -EINVAL;
2083                 goto error_mtrr;
2084         }
2085
2086         dumpVGAReg();
2087
2088         return 0;
2089
2090 error_mtrr:
2091 #ifdef CONFIG_MTRR
2092         if (xgifb_info->mtrr >= 0)
2093                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2094                         xgifb_info->video_size);
2095 #endif /* CONFIG_MTRR */
2096 error_1:
2097         iounmap(xgifb_info->mmio_vbase);
2098         iounmap(xgifb_info->video_vbase);
2099         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2100 error_0:
2101         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2102 error_disable:
2103         pci_disable_device(pdev);
2104 error:
2105         framebuffer_release(fb_info);
2106         return ret;
2107 }
2108
2109 /*****************************************************/
2110 /*                PCI DEVICE HANDLING                */
2111 /*****************************************************/
2112
2113 static void __devexit xgifb_remove(struct pci_dev *pdev)
2114 {
2115         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2116         struct fb_info *fb_info = xgifb_info->fb_info;
2117
2118         unregister_framebuffer(fb_info);
2119 #ifdef CONFIG_MTRR
2120         if (xgifb_info->mtrr >= 0)
2121                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2122                         xgifb_info->video_size);
2123 #endif /* CONFIG_MTRR */
2124         iounmap(xgifb_info->mmio_vbase);
2125         iounmap(xgifb_info->video_vbase);
2126         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2127         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2128         pci_disable_device(pdev);
2129         framebuffer_release(fb_info);
2130         pci_set_drvdata(pdev, NULL);
2131 }
2132
2133 static struct pci_driver xgifb_driver = {
2134         .name = "xgifb",
2135         .id_table = xgifb_pci_table,
2136         .probe = xgifb_probe,
2137         .remove = __devexit_p(xgifb_remove)
2138 };
2139
2140
2141
2142 /*****************************************************/
2143 /*                      MODULE                       */
2144 /*****************************************************/
2145
2146 module_param(mode, charp, 0);
2147 MODULE_PARM_DESC(mode,
2148         "Selects the desired default display mode in the format XxYxDepth "
2149         "(eg. 1024x768x16).");
2150
2151 module_param(forcecrt2type, charp, 0);
2152 MODULE_PARM_DESC(forcecrt2type,
2153         "Force the second display output type. Possible values are NONE, "
2154         "LCD, TV, VGA, SVIDEO or COMPOSITE.");
2155
2156 module_param(vesa, int, 0);
2157 MODULE_PARM_DESC(vesa,
2158         "Selects the desired default display mode by VESA mode number "
2159         "(eg. 0x117).");
2160
2161 module_param(filter, int, 0);
2162 MODULE_PARM_DESC(filter,
2163         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). "
2164         "Possible values 0-7. Default: [no filter]).");
2165
2166 static int __init xgifb_init(void)
2167 {
2168         char *option = NULL;
2169
2170         if (forcecrt2type != NULL)
2171                 XGIfb_search_crt2type(forcecrt2type);
2172         if (fb_get_options("xgifb", &option))
2173                 return -ENODEV;
2174         XGIfb_setup(option);
2175
2176         return pci_register_driver(&xgifb_driver);
2177 }
2178
2179 static void __exit xgifb_remove_module(void)
2180 {
2181         pci_unregister_driver(&xgifb_driver);
2182         pr_debug("Module unloaded\n");
2183 }
2184
2185 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2186 MODULE_LICENSE("GPL");
2187 MODULE_AUTHOR("XGITECH , Others");
2188 module_init(xgifb_init);
2189 module_exit(xgifb_remove_module);