Pileus Git - ~andy/linux/blob - 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         int i = 0;
 266
 267         while ((XGIbios_mode[i].mode_no != 0)
 268                && (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
 269                 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE)
 270                     && (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE)
 271                     && (XGIbios_mode[i].bpp == 8)) {
 272                         return i;
 273                 }
 274                 i++;
 275         }
 276
 277         return -1;
 278 }
 279
 280 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 281                               const char *name)
 282 {
 283         unsigned int xres;
 284         unsigned int yres;
 285         unsigned int bpp;
 286         int i;
 287
 288         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 289                 goto invalid_mode;
 290
 291         if (bpp == 24)
 292                 bpp = 32; /* That's for people who mix up color and fb depth. */
 293
 294         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 295                 if (XGIbios_mode[i].xres == xres &&
 296                     XGIbios_mode[i].yres == yres &&
 297                     XGIbios_mode[i].bpp == bpp) {
 298                         xgifb_info->mode_idx = i;
 299                         return;
 300                 }
 301 invalid_mode:
 302         pr_info("Invalid mode '%s'\n", name);
 303 }
 304
 305 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 306                                   unsigned int vesamode)
 307 {
 308         int i = 0;
 309
 310         if (vesamode == 0)
 311                 goto invalid;
 312
 313         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 314
 315         while (XGIbios_mode[i].mode_no != 0) {
 316                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 317                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 318                         xgifb_info->mode_idx = i;
 319                         return;
 320                 }
 321                 i++;
 322         }
 323
 324 invalid:
 325         pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 326 }
 327
 328 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 329 {
 330         u16 xres, yres;
 331         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 332
 333         if (xgifb_info->chip == XG21) {
 334                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 335                         xres = xgifb_info->lvds_data.LVDSHDE;
 336                         yres = xgifb_info->lvds_data.LVDSVDE;
 337                         if (XGIbios_mode[myindex].xres > xres)
 338                                 return -1;
 339                         if (XGIbios_mode[myindex].yres > yres)
 340                                 return -1;
 341                         if ((XGIbios_mode[myindex].xres < xres) &&
 342                             (XGIbios_mode[myindex].yres < yres)) {
 343                                 if (XGIbios_mode[myindex].bpp > 8)
 344                                         return -1;
 345                         }
 346
 347                 }
 348                 return myindex;
 349
 350         }
 351
 352         /* FIXME: for now, all is valid on XG27 */
 353         if (xgifb_info->chip == XG27)
 354                 return myindex;
 355
 356         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 357                 return -1;
 358
 359         switch (xgifb_info->display2) {
 360         case XGIFB_DISP_LCD:
 361                 switch (hw_info->ulCRT2LCDType) {
 362                 case LCD_640x480:
 363                         xres = 640;
 364                         yres = 480;
 365                         break;
 366                 case LCD_800x600:
 367                         xres = 800;
 368                         yres = 600;
 369                         break;
 370                 case LCD_1024x600:
 371                         xres = 1024;
 372                         yres = 600;
 373                         break;
 374                 case LCD_1024x768:
 375                         xres = 1024;
 376                         yres = 768;
 377                         break;
 378                 case LCD_1152x768:
 379                         xres = 1152;
 380                         yres = 768;
 381                         break;
 382                 case LCD_1280x960:
 383                         xres = 1280;
 384                         yres = 960;
 385                         break;
 386                 case LCD_1280x768:
 387                         xres = 1280;
 388                         yres = 768;
 389                         break;
 390                 case LCD_1280x1024:
 391                         xres = 1280;
 392                         yres = 1024;
 393                         break;
 394                 case LCD_1400x1050:
 395                         xres = 1400;
 396                         yres = 1050;
 397                         break;
 398                 case LCD_1600x1200:
 399                         xres = 1600;
 400                         yres = 1200;
 401                         break;
 402                 default:
 403                         xres = 0;
 404                         yres = 0;
 405                         break;
 406                 }
 407                 if (XGIbios_mode[myindex].xres > xres)
 408                         return -1;
 409                 if (XGIbios_mode[myindex].yres > yres)
 410                         return -1;
 411                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 412                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 413                         switch (XGIbios_mode[myindex].xres) {
 414                         case 512:
 415                                 if (XGIbios_mode[myindex].yres != 512)
 416                                         return -1;
 417                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 418                                         return -1;
 419                                 break;
 420                         case 640:
 421                                 if ((XGIbios_mode[myindex].yres != 400)
 422                                                 && (XGIbios_mode[myindex].yres
 423                                                                 != 480))
 424                                         return -1;
 425                                 break;
 426                         case 800:
 427                                 if (XGIbios_mode[myindex].yres != 600)
 428                                         return -1;
 429                                 break;
 430                         case 1024:
 431                                 if ((XGIbios_mode[myindex].yres != 600) &&
 432                                     (XGIbios_mode[myindex].yres != 768))
 433                                         return -1;
 434                                 if ((XGIbios_mode[myindex].yres == 600) &&
 435                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 436                                         return -1;
 437                                 break;
 438                         case 1152:
 439                                 if ((XGIbios_mode[myindex].yres) != 768)
 440                                         return -1;
 441                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 442                                         return -1;
 443                                 break;
 444                         case 1280:
 445                                 if ((XGIbios_mode[myindex].yres != 768) &&
 446                                     (XGIbios_mode[myindex].yres != 1024))
 447                                         return -1;
 448                                 if ((XGIbios_mode[myindex].yres == 768) &&
 449                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 450                                         return -1;
 451                                 break;
 452                         case 1400:
 453                                 if (XGIbios_mode[myindex].yres != 1050)
 454                                         return -1;
 455                                 break;
 456                         case 1600:
 457                                 if (XGIbios_mode[myindex].yres != 1200)
 458                                         return -1;
 459                                 break;
 460                         default:
 461                                 return -1;
 462                         }
 463                 } else {
 464                         switch (XGIbios_mode[myindex].xres) {
 465                         case 512:
 466                                 if (XGIbios_mode[myindex].yres != 512)
 467                                         return -1;
 468                                 break;
 469                         case 640:
 470                                 if ((XGIbios_mode[myindex].yres != 400) &&
 471                                     (XGIbios_mode[myindex].yres != 480))
 472                                         return -1;
 473                                 break;
 474                         case 800:
 475                                 if (XGIbios_mode[myindex].yres != 600)
 476                                         return -1;
 477                                 break;
 478                         case 1024:
 479                                 if (XGIbios_mode[myindex].yres != 768)
 480                                         return -1;
 481                                 break;
 482                         case 1280:
 483                                 if ((XGIbios_mode[myindex].yres != 960) &&
 484                                     (XGIbios_mode[myindex].yres != 1024))
 485                                         return -1;
 486                                 if (XGIbios_mode[myindex].yres == 960) {
 487                                         if (hw_info->ulCRT2LCDType ==
 488                                             LCD_1400x1050)
 489                                                 return -1;
 490                                 }
 491                                 break;
 492                         case 1400:
 493                                 if (XGIbios_mode[myindex].yres != 1050)
 494                                         return -1;
 495                                 break;
 496                         case 1600:
 497                                 if (XGIbios_mode[myindex].yres != 1200)
 498                                         return -1;
 499                                 break;
 500                         default:
 501                                 return -1;
 502                         }
 503                 }
 504                 break;
 505         case XGIFB_DISP_TV:
 506                 switch (XGIbios_mode[myindex].xres) {
 507                 case 512:
 508                 case 640:
 509                 case 800:
 510                         break;
 511                 case 720:
 512                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 513                                 if (XGIbios_mode[myindex].yres != 480)
 514                                         return -1;
 515                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 516                                 if (XGIbios_mode[myindex].yres != 576)
 517                                         return -1;
 518                         }
 519                         /* LVDS/CHRONTEL does not support 720 */
 520                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 521                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 522                                 return -1;
 523                         }
 524                         break;
 525                 case 1024:
 526                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 527                                 if (XGIbios_mode[myindex].bpp == 32)
 528                                         return -1;
 529                         }
 530                         break;
 531                 default:
 532                         return -1;
 533                 }
 534                 break;
 535         case XGIFB_DISP_CRT:
 536                 if (XGIbios_mode[myindex].xres > 1280)
 537                         return -1;
 538                 break;
 539         case XGIFB_DISP_NONE:
 540                 break;
 541         }
 542         return myindex;
 543
 544 }
 545
 546 static void XGIfb_search_crt2type(const char *name)
 547 {
 548         int i = 0;
 549
 550         if (name == NULL)
 551                 return;
 552
 553         while (XGI_crt2type[i].type_no != -1) {
 554                 if (!strcmp(name, XGI_crt2type[i].name)) {
 555                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 556                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 557                         break;
 558                 }
 559                 i++;
 560         }
 561         if (XGIfb_crt2type < 0)
 562                 pr_info("Invalid CRT2 type: %s\n", name);
 563 }
 564
 565 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 566                                     unsigned int rate)
 567 {
 568         u16 xres, yres;
 569         int i = 0;
 570
 571         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 572         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 573
 574         xgifb_info->rate_idx = 0;
 575         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 576                 if ((XGIfb_vrate[i].xres == xres) &&
 577                     (XGIfb_vrate[i].yres == yres)) {
 578                         if (XGIfb_vrate[i].refresh == rate) {
 579                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 580                                 break;
 581                         } else if (XGIfb_vrate[i].refresh > rate) {
 582                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 583                                         pr_debug("Adjusting rate from %d up to %d\n",
 584                                                  rate, XGIfb_vrate[i].refresh);
 585                                         xgifb_info->rate_idx =
 586                                                 XGIfb_vrate[i].idx;
 587                                         xgifb_info->refresh_rate =
 588                                                 XGIfb_vrate[i].refresh;
 589                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 590                                                 <= 2) && (XGIfb_vrate[i].idx
 591                                                 != 1)) {
 592                                         pr_debug("Adjusting rate from %d down to %d\n",
 593                                                  rate, XGIfb_vrate[i-1].refresh);
 594                                         xgifb_info->rate_idx =
 595                                                 XGIfb_vrate[i - 1].idx;
 596                                         xgifb_info->refresh_rate =
 597                                                 XGIfb_vrate[i - 1].refresh;
 598                                 }
 599                                 break;
 600                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 601                                 pr_debug("Adjusting rate from %d down to %d\n",
 602                                          rate, XGIfb_vrate[i].refresh);
 603                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 604                                 break;
 605                         }
 606                 }
 607                 i++;
 608         }
 609         if (xgifb_info->rate_idx > 0) {
 610                 return xgifb_info->rate_idx;
 611         } else {
 612                 pr_info("Unsupported rate %d for %dx%d\n",
 613                        rate, xres, yres);
 614                 return 0;
 615         }
 616 }
 617
 618 static void XGIfb_search_tvstd(const char *name)
 619 {
 620         int i = 0;
 621
 622         if (name == NULL)
 623                 return;
 624
 625         while (XGI_tvtype[i].type_no != -1) {
 626                 if (!strcmp(name, XGI_tvtype[i].name)) {
 627                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 628                         break;
 629                 }
 630                 i++;
 631         }
 632 }
 633
 634 /* ----------- FBDev related routines for all series ----------- */
 635
 636 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 637                              struct fb_var_screeninfo *var)
 638 {
 639         switch (var->bits_per_pixel) {
 640         case 8:
 641                 var->red.offset = var->green.offset = var->blue.offset = 0;
 642                 var->red.length = var->green.length = var->blue.length = 6;
 643                 xgifb_info->video_cmap_len = 256;
 644                 break;
 645         case 16:
 646                 var->red.offset = 11;
 647                 var->red.length = 5;
 648                 var->green.offset = 5;
 649                 var->green.length = 6;
 650                 var->blue.offset = 0;
 651                 var->blue.length = 5;
 652                 var->transp.offset = 0;
 653                 var->transp.length = 0;
 654                 xgifb_info->video_cmap_len = 16;
 655                 break;
 656         case 32:
 657                 var->red.offset = 16;
 658                 var->red.length = 8;
 659                 var->green.offset = 8;
 660                 var->green.length = 8;
 661                 var->blue.offset = 0;
 662                 var->blue.length = 8;
 663                 var->transp.offset = 24;
 664                 var->transp.length = 8;
 665                 xgifb_info->video_cmap_len = 16;
 666                 break;
 667         }
 668 }
 669
 670 /* --------------------- SetMode routines ------------------------- */
 671
 672 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 673 {
 674         u8 cr30 = 0, cr31 = 0;
 675
 676         cr31 = xgifb_reg_get(XGICR, 0x31);
 677         cr31 &= ~0x60;
 678
 679         switch (xgifb_info->display2) {
 680         case XGIFB_DISP_CRT:
 681                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 682                 cr31 |= SIS_DRIVER_MODE;
 683                 break;
 684         case XGIFB_DISP_LCD:
 685                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 686                 cr31 |= SIS_DRIVER_MODE;
 687                 break;
 688         case XGIFB_DISP_TV:
 689                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 690                         cr30 = (SIS_VB_OUTPUT_HIVISION
 691                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 692                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 693                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 694                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 695                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 696                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 697                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 698                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 699                         cr30 = (SIS_VB_OUTPUT_SCART
 700                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 701                 cr31 |= SIS_DRIVER_MODE;
 702
 703                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 704                         cr31 |= 0x01;
 705                 else
 706                         cr31 &= ~0x01;
 707                 break;
 708         default: /* disable CRT2 */
 709                 cr30 = 0x00;
 710                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 711         }
 712
 713         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 714         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 715         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 716                                                 (xgifb_info->rate_idx & 0x0F));
 717 }
 718
 719 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 720 {
 721         u8 reg;
 722         unsigned char doit = 1;
 723
 724         if (xgifb_info->video_bpp == 8) {
 725                 /*
 726                  * We can't switch off CRT1 on LVDS/Chrontel
 727                  * in 8bpp Modes
 728                  */
 729                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 730                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 731                         doit = 0;
 732                 }
 733                 /*
 734                  * We can't switch off CRT1 on 301B-DH
 735                  * in 8bpp Modes if using LCD
 736                  */
 737                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 738                         doit = 0;
 739         }
 740
 741         /* We can't switch off CRT1 if bridge is in slave mode */
 742         if (xgifb_info->hasVB != HASVB_NONE) {
 743                 reg = xgifb_reg_get(XGIPART1, 0x00);
 744
 745                 if ((reg & 0x50) == 0x10)
 746                         doit = 0;
 747
 748         } else {
 749                 XGIfb_crt1off = 0;
 750         }
 751
 752         reg = xgifb_reg_get(XGICR, 0x17);
 753         if ((XGIfb_crt1off) && (doit))
 754                 reg &= ~0x80;
 755         else
 756                 reg |= 0x80;
 757         xgifb_reg_set(XGICR, 0x17, reg);
 758
 759         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 760
 761         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 762             xgifb_info->hasVB == HASVB_301) {
 763
 764                 reg = xgifb_reg_get(XGIPART4, 0x01);
 765
 766                 if (reg < 0xB0) { /* Set filter for XGI301 */
 767                         int filter_tb;
 768
 769                         switch (xgifb_info->video_width) {
 770                         case 320:
 771                                 filter_tb = (xgifb_info->TV_type ==
 772                                              TVMODE_NTSC) ? 4 : 12;
 773                                 break;
 774                         case 640:
 775                                 filter_tb = (xgifb_info->TV_type ==
 776                                              TVMODE_NTSC) ? 5 : 13;
 777                                 break;
 778                         case 720:
 779                                 filter_tb = (xgifb_info->TV_type ==
 780                                              TVMODE_NTSC) ? 6 : 14;
 781                                 break;
 782                         case 800:
 783                                 filter_tb = (xgifb_info->TV_type ==
 784                                              TVMODE_NTSC) ? 7 : 15;
 785                                 break;
 786                         default:
 787                                 filter_tb = 0;
 788                                 filter = -1;
 789                                 break;
 790                         }
 791                         xgifb_reg_or(XGIPART1,
 792                                      SIS_CRT2_WENABLE_315,
 793                                      0x01);
 794
 795                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 796
 797                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 798
 799                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 800
 801                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 802
 803                                 } else if (xgifb_info->TV_plug
 804                                                 == TVPLUG_COMPOSITE) {
 805
 806                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 807
 808                                         switch (xgifb_info->video_width) {
 809                                         case 640:
 810                                                 xgifb_reg_set(XGIPART2,
 811                                                               0x35,
 812                                                               0xEB);
 813                                                 xgifb_reg_set(XGIPART2,
 814                                                               0x36,
 815                                                               0x04);
 816                                                 xgifb_reg_set(XGIPART2,
 817                                                               0x37,
 818                                                               0x25);
 819                                                 xgifb_reg_set(XGIPART2,
 820                                                               0x38,
 821                                                               0x18);
 822                                                 break;
 823                                         case 720:
 824                                                 xgifb_reg_set(XGIPART2,
 825                                                               0x35,
 826                                                               0xEE);
 827                                                 xgifb_reg_set(XGIPART2,
 828                                                               0x36,
 829                                                               0x0C);
 830                                                 xgifb_reg_set(XGIPART2,
 831                                                               0x37,
 832                                                               0x22);
 833                                                 xgifb_reg_set(XGIPART2,
 834                                                               0x38,
 835                                                               0x08);
 836                                                 break;
 837                                         case 800:
 838                                                 xgifb_reg_set(XGIPART2,
 839                                                               0x35,
 840                                                               0xEB);
 841                                                 xgifb_reg_set(XGIPART2,
 842                                                               0x36,
 843                                                               0x15);
 844                                                 xgifb_reg_set(XGIPART2,
 845                                                               0x37,
 846                                                               0x25);
 847                                                 xgifb_reg_set(XGIPART2,
 848                                                               0x38,
 849                                                               0xF6);
 850                                                 break;
 851                                         }
 852                                 }
 853
 854                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 855
 856                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 857
 858                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 859
 860                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 861
 862                                 } else if (xgifb_info->TV_plug
 863                                                 == TVPLUG_COMPOSITE) {
 864
 865                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 866
 867                                         switch (xgifb_info->video_width) {
 868                                         case 640:
 869                                                 xgifb_reg_set(XGIPART2,
 870                                                               0x35,
 871                                                               0xF1);
 872                                                 xgifb_reg_set(XGIPART2,
 873                                                               0x36,
 874                                                               0xF7);
 875                                                 xgifb_reg_set(XGIPART2,
 876                                                               0x37,
 877                                                               0x1F);
 878                                                 xgifb_reg_set(XGIPART2,
 879                                                               0x38,
 880                                                               0x32);
 881                                                 break;
 882                                         case 720:
 883                                                 xgifb_reg_set(XGIPART2,
 884                                                               0x35,
 885                                                               0xF3);
 886                                                 xgifb_reg_set(XGIPART2,
 887                                                               0x36,
 888                                                               0x00);
 889                                                 xgifb_reg_set(XGIPART2,
 890                                                               0x37,
 891                                                               0x1D);
 892                                                 xgifb_reg_set(XGIPART2,
 893                                                               0x38,
 894                                                               0x20);
 895                                                 break;
 896                                         case 800:
 897                                                 xgifb_reg_set(XGIPART2,
 898                                                               0x35,
 899                                                               0xFC);
 900                                                 xgifb_reg_set(XGIPART2,
 901                                                               0x36,
 902                                                               0xFB);
 903                                                 xgifb_reg_set(XGIPART2,
 904                                                               0x37,
 905                                                               0x14);
 906                                                 xgifb_reg_set(XGIPART2,
 907                                                               0x38,
 908                                                               0x2A);
 909                                                 break;
 910                                         }
 911                                 }
 912                         }
 913
 914                         if ((filter >= 0) && (filter <= 7)) {
 915                                 pr_debug("FilterTable[%d]-%d: %02x %02x %02x %02x\n",
 916                                          filter_tb, filter,
 917                                          XGI_TV_filter[filter_tb].
 918                                                 filter[filter][0],
 919                                          XGI_TV_filter[filter_tb].
 920                                                 filter[filter][1],
 921                                          XGI_TV_filter[filter_tb].
 922                                                 filter[filter][2],
 923                                          XGI_TV_filter[filter_tb].
 924                                                 filter[filter][3]
 925                                 );
 926                                 xgifb_reg_set(
 927                                         XGIPART2,
 928                                         0x35,
 929                                         (XGI_TV_filter[filter_tb].
 930                                                 filter[filter][0]));
 931                                 xgifb_reg_set(
 932                                         XGIPART2,
 933                                         0x36,
 934                                         (XGI_TV_filter[filter_tb].
 935                                                 filter[filter][1]));
 936                                 xgifb_reg_set(
 937                                         XGIPART2,
 938                                         0x37,
 939                                         (XGI_TV_filter[filter_tb].
 940                                                 filter[filter][2]));
 941                                 xgifb_reg_set(
 942                                         XGIPART2,
 943                                         0x38,
 944                                         (XGI_TV_filter[filter_tb].
 945                                                 filter[filter][3]));
 946                         }
 947                 }
 948         }
 949 }
 950
 951 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 952                 struct fb_info *info)
 953 {
 954         struct xgifb_video_info *xgifb_info = info->par;
 955         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 956         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 957                         + var->hsync_len;
 958         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 959                         + var->vsync_len;
 960 #if defined(__powerpc__)
 961         u8 cr_data;
 962 #endif
 963         unsigned int drate = 0, hrate = 0;
 964         int found_mode = 0;
 965         int old_mode;
 966
 967         info->var.xres_virtual = var->xres_virtual;
 968         info->var.yres_virtual = var->yres_virtual;
 969         info->var.bits_per_pixel = var->bits_per_pixel;
 970
 971         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 972                 vtotal <<= 1;
 973         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 974                 vtotal <<= 2;
 975         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
 976         }
 977
 978         if (!htotal || !vtotal) {
 979                 pr_debug("Invalid 'var' information\n");
 980                 return -EINVAL;
 981         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 982                         var->pixclock, htotal, vtotal);
 983
 984         if (var->pixclock && htotal && vtotal) {
 985                 drate = 1000000000 / var->pixclock;
 986                 hrate = (drate * 1000) / htotal;
 987                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 988                                 / vtotal);
 989         } else {
 990                 xgifb_info->refresh_rate = 60;
 991         }
 992
 993         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 994                var->xres,
 995                var->yres,
 996                var->bits_per_pixel,
 997                xgifb_info->refresh_rate);
 998
 999         old_mode = xgifb_info->mode_idx;
1000         xgifb_info->mode_idx = 0;
1001
1002         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
1003                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
1004                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
1005                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
1006                     (XGIbios_mode[xgifb_info->mode_idx].bpp
1007                                                 == var->bits_per_pixel)) {
1008                         found_mode = 1;
1009                         break;
1010                 }
1011                 xgifb_info->mode_idx++;
1012         }
1013
1014         if (found_mode)
1015                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
1016                                                         xgifb_info->mode_idx);
1017         else
1018                 xgifb_info->mode_idx = -1;
1019
1020         if (xgifb_info->mode_idx < 0) {
1021                 pr_err("Mode %dx%dx%d not supported\n",
1022                        var->xres, var->yres, var->bits_per_pixel);
1023                 xgifb_info->mode_idx = old_mode;
1024                 return -EINVAL;
1025         }
1026
1027         if (XGIfb_search_refresh_rate(xgifb_info,
1028                                       xgifb_info->refresh_rate) == 0) {
1029                 xgifb_info->rate_idx = 1;
1030                 xgifb_info->refresh_rate = 60;
1031         }
1032
1033         if (isactive) {
1034
1035                 XGIfb_pre_setmode(xgifb_info);
1036                 if (XGISetModeNew(xgifb_info, hw_info,
1037                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1038                                         == 0) {
1039                         pr_err("Setting mode[0x%x] failed\n",
1040                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1041                         return -EINVAL;
1042                 }
1043                 info->fix.line_length = ((info->var.xres_virtual
1044                                 * info->var.bits_per_pixel) >> 6);
1045
1046                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1047
1048                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1049                 xgifb_reg_set(XGISR,
1050                               0x0E,
1051                               (info->fix.line_length & 0xff00) >> 8);
1052
1053                 XGIfb_post_setmode(xgifb_info);
1054
1055                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1056                          XGIbios_mode[xgifb_info->mode_idx].xres,
1057                          XGIbios_mode[xgifb_info->mode_idx].yres,
1058                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1059                          xgifb_info->refresh_rate);
1060
1061                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1062                 xgifb_info->video_vwidth = info->var.xres_virtual;
1063                 xgifb_info->video_width =
1064                         XGIbios_mode[xgifb_info->mode_idx].xres;
1065                 xgifb_info->video_vheight = info->var.yres_virtual;
1066                 xgifb_info->video_height =
1067                         XGIbios_mode[xgifb_info->mode_idx].yres;
1068                 xgifb_info->org_x = xgifb_info->org_y = 0;
1069                 xgifb_info->video_linelength = info->var.xres_virtual
1070                                 * (xgifb_info->video_bpp >> 3);
1071                 switch (xgifb_info->video_bpp) {
1072                 case 8:
1073                         xgifb_info->DstColor = 0x0000;
1074                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1075                         xgifb_info->video_cmap_len = 256;
1076 #if defined(__powerpc__)
1077                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1078                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1079 #endif
1080                         break;
1081                 case 16:
1082                         xgifb_info->DstColor = 0x8000;
1083                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1084 #if defined(__powerpc__)
1085                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1086                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1087 #endif
1088                         xgifb_info->video_cmap_len = 16;
1089                         break;
1090                 case 32:
1091                         xgifb_info->DstColor = 0xC000;
1092                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1093                         xgifb_info->video_cmap_len = 16;
1094 #if defined(__powerpc__)
1095                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1096                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1097 #endif
1098                         break;
1099                 default:
1100                         xgifb_info->video_cmap_len = 16;
1101                         pr_err("Unsupported depth %d\n",
1102                                xgifb_info->video_bpp);
1103                         break;
1104                 }
1105         }
1106         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1107
1108         dumpVGAReg();
1109         return 0;
1110 }
1111
1112 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1113 {
1114         struct xgifb_video_info *xgifb_info = info->par;
1115         unsigned int base;
1116
1117         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1118
1119         /* calculate base bpp dep. */
1120         switch (info->var.bits_per_pixel) {
1121         case 16:
1122                 base >>= 1;
1123                 break;
1124         case 32:
1125                 break;
1126         case 8:
1127         default:
1128                 base >>= 2;
1129                 break;
1130         }
1131
1132         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1133
1134         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1135         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1136         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1137         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1138         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1139
1140         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1141                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1142                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1143                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1144                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1145                 xgifb_reg_and_or(XGIPART1,
1146                                  0x02,
1147                                  0x7F,
1148                                  ((base >> 24) & 0x01) << 7);
1149         }
1150         return 0;
1151 }
1152
1153 static int XGIfb_open(struct fb_info *info, int user)
1154 {
1155         return 0;
1156 }
1157
1158 static int XGIfb_release(struct fb_info *info, int user)
1159 {
1160         return 0;
1161 }
1162
1163 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1164 {
1165         int rc = 16;
1166
1167         switch (var->bits_per_pixel) {
1168         case 8:
1169                 rc = 256;
1170                 break;
1171         case 16:
1172                 rc = 16;
1173                 break;
1174         case 32:
1175                 rc = 16;
1176                 break;
1177         }
1178         return rc;
1179 }
1180
1181 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1182                 unsigned blue, unsigned transp, struct fb_info *info)
1183 {
1184         struct xgifb_video_info *xgifb_info = info->par;
1185
1186         if (regno >= XGIfb_get_cmap_len(&info->var))
1187                 return 1;
1188
1189         switch (info->var.bits_per_pixel) {
1190         case 8:
1191                 outb(regno, XGIDACA);
1192                 outb((red >> 10), XGIDACD);
1193                 outb((green >> 10), XGIDACD);
1194                 outb((blue >> 10), XGIDACD);
1195                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1196                         outb(regno, XGIDAC2A);
1197                         outb((red >> 8), XGIDAC2D);
1198                         outb((green >> 8), XGIDAC2D);
1199                         outb((blue >> 8), XGIDAC2D);
1200                 }
1201                 break;
1202         case 16:
1203                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1204                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1205                                 >> 11);
1206                 break;
1207         case 32:
1208                 red >>= 8;
1209                 green >>= 8;
1210                 blue >>= 8;
1211                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1212                                 << 8) | (blue);
1213                 break;
1214         }
1215         return 0;
1216 }
1217
1218 /* ----------- FBDev related routines for all series ---------- */
1219
1220 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1221                 struct fb_info *info)
1222 {
1223         struct xgifb_video_info *xgifb_info = info->par;
1224
1225         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1226
1227         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1228
1229         /* if register_framebuffer has been called, we must lock */
1230         if (atomic_read(&info->count))
1231                 mutex_lock(&info->mm_lock);
1232
1233         fix->smem_start = xgifb_info->video_base;
1234         fix->smem_len = xgifb_info->video_size;
1235
1236         /* if register_framebuffer has been called, we can unlock */
1237         if (atomic_read(&info->count))
1238                 mutex_unlock(&info->mm_lock);
1239
1240         fix->type = FB_TYPE_PACKED_PIXELS;
1241         fix->type_aux = 0;
1242         if (xgifb_info->video_bpp == 8)
1243                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1244         else
1245                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1246         fix->xpanstep = 0;
1247         if (XGIfb_ypan)
1248                 fix->ypanstep = 1;
1249         fix->ywrapstep = 0;
1250         fix->line_length = xgifb_info->video_linelength;
1251         fix->mmio_start = xgifb_info->mmio_base;
1252         fix->mmio_len = xgifb_info->mmio_size;
1253         fix->accel = FB_ACCEL_SIS_XABRE;
1254
1255         return 0;
1256 }
1257
1258 static int XGIfb_set_par(struct fb_info *info)
1259 {
1260         int err;
1261
1262         err = XGIfb_do_set_var(&info->var, 1, info);
1263         if (err)
1264                 return err;
1265         XGIfb_get_fix(&info->fix, -1, info);
1266         return 0;
1267 }
1268
1269 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1270 {
1271         struct xgifb_video_info *xgifb_info = info->par;
1272         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1273                         + var->hsync_len;
1274         unsigned int vtotal = 0;
1275         unsigned int drate = 0, hrate = 0;
1276         int found_mode = 0;
1277         int refresh_rate, search_idx;
1278
1279         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1280                 vtotal = var->upper_margin + var->yres + var->lower_margin
1281                                 + var->vsync_len;
1282                 vtotal <<= 1;
1283         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1284                 vtotal = var->upper_margin + var->yres + var->lower_margin
1285                                 + var->vsync_len;
1286                 vtotal <<= 2;
1287         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1288                 vtotal = var->upper_margin + (var->yres / 2)
1289                                 + var->lower_margin + var->vsync_len;
1290         } else
1291                 vtotal = var->upper_margin + var->yres + var->lower_margin
1292                                 + var->vsync_len;
1293
1294         if (!(htotal) || !(vtotal)) {
1295                 pr_debug("No valid timing data\n");
1296                 return -EINVAL;
1297         }
1298
1299         if (var->pixclock && htotal && vtotal) {
1300                 drate = 1000000000 / var->pixclock;
1301                 hrate = (drate * 1000) / htotal;
1302                 xgifb_info->refresh_rate =
1303                         (unsigned int) (hrate * 2 / vtotal);
1304                 pr_debug(
1305                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1306                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1307                         __func__, var->pixclock, htotal, vtotal,
1308                         __func__, drate, hrate, xgifb_info->refresh_rate);
1309         } else {
1310                 xgifb_info->refresh_rate = 60;
1311         }
1312
1313         /* Calculation wrong for 1024x600 - force it to 60Hz */
1314         if ((var->xres == 1024) && (var->yres == 600))
1315                 refresh_rate = 60;
1316
1317         search_idx = 0;
1318         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1319                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1320                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1321                         (XGIbios_mode[search_idx].yres == var->yres) &&
1322                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1323                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1324                                 found_mode = 1;
1325                                 break;
1326                         }
1327                 }
1328                 search_idx++;
1329         }
1330
1331         if (!found_mode) {
1332
1333                 pr_err("%dx%dx%d is no valid mode\n",
1334                         var->xres, var->yres, var->bits_per_pixel);
1335                 search_idx = 0;
1336                 while (XGIbios_mode[search_idx].mode_no != 0) {
1337                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1338                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1339                             (var->bits_per_pixel ==
1340                              XGIbios_mode[search_idx].bpp)) {
1341                                 if (XGIfb_validate_mode(xgifb_info,
1342                                                         search_idx) > 0) {
1343                                         found_mode = 1;
1344                                         break;
1345                                 }
1346                         }
1347                         search_idx++;
1348                 }
1349                 if (found_mode) {
1350                         var->xres = XGIbios_mode[search_idx].xres;
1351                         var->yres = XGIbios_mode[search_idx].yres;
1352                         pr_debug("Adapted to mode %dx%dx%d\n",
1353                                 var->xres, var->yres, var->bits_per_pixel);
1354
1355                 } else {
1356                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1357                                 var->xres, var->yres, var->bits_per_pixel);
1358                         return -EINVAL;
1359                 }
1360         }
1361
1362         /* Adapt RGB settings */
1363         XGIfb_bpp_to_var(xgifb_info, var);
1364
1365         /* Sanity check for offsets */
1366         if (var->xoffset < 0)
1367                 var->xoffset = 0;
1368         if (var->yoffset < 0)
1369                 var->yoffset = 0;
1370
1371         if (!XGIfb_ypan) {
1372                 if (var->xres != var->xres_virtual)
1373                         var->xres_virtual = var->xres;
1374                 if (var->yres != var->yres_virtual)
1375                         var->yres_virtual = var->yres;
1376         }
1377
1378         /* Truncate offsets to maximum if too high */
1379         if (var->xoffset > var->xres_virtual - var->xres)
1380                 var->xoffset = var->xres_virtual - var->xres - 1;
1381
1382         if (var->yoffset > var->yres_virtual - var->yres)
1383                 var->yoffset = var->yres_virtual - var->yres - 1;
1384
1385         /* Set everything else to 0 */
1386         var->red.msb_right =
1387         var->green.msb_right =
1388         var->blue.msb_right =
1389         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1390
1391         return 0;
1392 }
1393
1394 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1395                 struct fb_info *info)
1396 {
1397         int err;
1398
1399         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1400                 return -EINVAL;
1401         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1402                 return -EINVAL;
1403
1404         if (var->vmode & FB_VMODE_YWRAP) {
1405                 if (var->yoffset < 0 || var->yoffset >= info->var.yres_virtual
1406                                 || var->xoffset)
1407                         return -EINVAL;
1408         } else {
1409                 if (var->xoffset + info->var.xres > info->var.xres_virtual
1410                                 || var->yoffset + info->var.yres
1411                                                 > info->var.yres_virtual)
1412                         return -EINVAL;
1413         }
1414         err = XGIfb_pan_var(var, info);
1415         if (err < 0)
1416                 return err;
1417
1418         info->var.xoffset = var->xoffset;
1419         info->var.yoffset = var->yoffset;
1420         if (var->vmode & FB_VMODE_YWRAP)
1421                 info->var.vmode |= FB_VMODE_YWRAP;
1422         else
1423                 info->var.vmode &= ~FB_VMODE_YWRAP;
1424
1425         return 0;
1426 }
1427
1428 static int XGIfb_blank(int blank, struct fb_info *info)
1429 {
1430         struct xgifb_video_info *xgifb_info = info->par;
1431         u8 reg;
1432
1433         reg = xgifb_reg_get(XGICR, 0x17);
1434
1435         if (blank > 0)
1436                 reg &= 0x7f;
1437         else
1438                 reg |= 0x80;
1439
1440         xgifb_reg_set(XGICR, 0x17, reg);
1441         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1442         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1443         return 0;
1444 }
1445
1446 static struct fb_ops XGIfb_ops = {
1447         .owner = THIS_MODULE,
1448         .fb_open = XGIfb_open,
1449         .fb_release = XGIfb_release,
1450         .fb_check_var = XGIfb_check_var,
1451         .fb_set_par = XGIfb_set_par,
1452         .fb_setcolreg = XGIfb_setcolreg,
1453         .fb_pan_display = XGIfb_pan_display,
1454         .fb_blank = XGIfb_blank,
1455         .fb_fillrect = cfb_fillrect,
1456         .fb_copyarea = cfb_copyarea,
1457         .fb_imageblit = cfb_imageblit,
1458 };
1459
1460 /* ---------------- Chip generation dependent routines ---------------- */
1461
1462 /* for XGI 315/550/650/740/330 */
1463
1464 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1465 {
1466
1467         u8 ChannelNum, tmp;
1468         u8 reg = 0;
1469
1470         /* xorg driver sets 32MB * 1 channel */
1471         if (xgifb_info->chip == XG27)
1472                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1473
1474         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1475         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1476         case XGI_DRAM_SIZE_1MB:
1477                 xgifb_info->video_size = 0x100000;
1478                 break;
1479         case XGI_DRAM_SIZE_2MB:
1480                 xgifb_info->video_size = 0x200000;
1481                 break;
1482         case XGI_DRAM_SIZE_4MB:
1483                 xgifb_info->video_size = 0x400000;
1484                 break;
1485         case XGI_DRAM_SIZE_8MB:
1486                 xgifb_info->video_size = 0x800000;
1487                 break;
1488         case XGI_DRAM_SIZE_16MB:
1489                 xgifb_info->video_size = 0x1000000;
1490                 break;
1491         case XGI_DRAM_SIZE_32MB:
1492                 xgifb_info->video_size = 0x2000000;
1493                 break;
1494         case XGI_DRAM_SIZE_64MB:
1495                 xgifb_info->video_size = 0x4000000;
1496                 break;
1497         case XGI_DRAM_SIZE_128MB:
1498                 xgifb_info->video_size = 0x8000000;
1499                 break;
1500         case XGI_DRAM_SIZE_256MB:
1501                 xgifb_info->video_size = 0x10000000;
1502                 break;
1503         default:
1504                 return -1;
1505         }
1506
1507         tmp = (reg & 0x0c) >> 2;
1508         switch (xgifb_info->chip) {
1509         case XG20:
1510         case XG21:
1511         case XG27:
1512                 ChannelNum = 1;
1513                 break;
1514
1515         case XG42:
1516                 if (reg & 0x04)
1517                         ChannelNum = 2;
1518                 else
1519                         ChannelNum = 1;
1520                 break;
1521
1522         case XG40:
1523         default:
1524                 if (tmp == 2)
1525                         ChannelNum = 2;
1526                 else if (tmp == 3)
1527                         ChannelNum = 3;
1528                 else
1529                         ChannelNum = 1;
1530                 break;
1531         }
1532
1533         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1534
1535         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1536                reg,
1537                xgifb_info->video_size, ChannelNum);
1538         return 0;
1539
1540 }
1541
1542 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1543 {
1544         u8 cr32, temp = 0;
1545
1546         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1547
1548         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1549
1550         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1551                 XGIfb_crt1off = 0;
1552         else {
1553                 if (cr32 & 0x5F)
1554                         XGIfb_crt1off = 1;
1555                 else
1556                         XGIfb_crt1off = 0;
1557         }
1558
1559         if (!xgifb_info->display2_force) {
1560                 if (cr32 & SIS_VB_TV)
1561                         xgifb_info->display2 = XGIFB_DISP_TV;
1562                 else if (cr32 & SIS_VB_LCD)
1563                         xgifb_info->display2 = XGIFB_DISP_LCD;
1564                 else if (cr32 & SIS_VB_CRT2)
1565                         xgifb_info->display2 = XGIFB_DISP_CRT;
1566                 else
1567                         xgifb_info->display2 = XGIFB_DISP_NONE;
1568         }
1569
1570         if (XGIfb_tvplug != -1)
1571                 /* Override with option */
1572                 xgifb_info->TV_plug = XGIfb_tvplug;
1573         else if (cr32 & SIS_VB_HIVISION) {
1574                 xgifb_info->TV_type = TVMODE_HIVISION;
1575                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1576         } else if (cr32 & SIS_VB_SVIDEO)
1577                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1578         else if (cr32 & SIS_VB_COMPOSITE)
1579                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1580         else if (cr32 & SIS_VB_SCART)
1581                 xgifb_info->TV_plug = TVPLUG_SCART;
1582
1583         if (xgifb_info->TV_type == 0) {
1584                 temp = xgifb_reg_get(XGICR, 0x38);
1585                 if (temp & 0x10)
1586                         xgifb_info->TV_type = TVMODE_PAL;
1587                 else
1588                         xgifb_info->TV_type = TVMODE_NTSC;
1589         }
1590
1591         /* Copy forceCRT1 option to CRT1off if option is given */
1592         if (XGIfb_forcecrt1 != -1) {
1593                 if (XGIfb_forcecrt1)
1594                         XGIfb_crt1off = 0;
1595                 else
1596                         XGIfb_crt1off = 1;
1597         }
1598 }
1599
1600 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1601 {
1602         u8 vb_chipid;
1603
1604         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1605         switch (vb_chipid) {
1606         case 0x01:
1607                 xgifb_info->hasVB = HASVB_301;
1608                 break;
1609         case 0x02:
1610                 xgifb_info->hasVB = HASVB_302;
1611                 break;
1612         default:
1613                 xgifb_info->hasVB = HASVB_NONE;
1614                 return 0;
1615         }
1616         return 1;
1617 }
1618
1619 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1620 {
1621         u8 reg;
1622
1623         if (!XGIfb_has_VB(xgifb_info)) {
1624                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1625                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1626                 case SIS_EXTERNAL_CHIP_LVDS:
1627                         xgifb_info->hasVB = HASVB_LVDS;
1628                         break;
1629                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1630                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1631                         break;
1632                 default:
1633                         break;
1634                 }
1635         }
1636 }
1637
1638 static int __init xgifb_optval(char *fullopt, int validx)
1639 {
1640         unsigned long lres;
1641
1642         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1643                 pr_err("Invalid value for option: %s\n", fullopt);
1644                 return 0;
1645         }
1646         return lres;
1647 }
1648
1649 static int __init XGIfb_setup(char *options)
1650 {
1651         char *this_opt;
1652
1653         if (!options || !*options)
1654                 return 0;
1655
1656         pr_info("Options: %s\n", options);
1657
1658         while ((this_opt = strsep(&options, ",")) != NULL) {
1659
1660                 if (!*this_opt)
1661                         continue;
1662
1663                 if (!strncmp(this_opt, "mode:", 5)) {
1664                         mode = this_opt + 5;
1665                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1666                         vesa = xgifb_optval(this_opt, 5);
1667                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1668                         refresh_rate = xgifb_optval(this_opt, 6);
1669                 } else if (!strncmp(this_opt, "rate:", 5)) {
1670                         refresh_rate = xgifb_optval(this_opt, 5);
1671                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1672                         XGIfb_crt1off = 1;
1673                 } else if (!strncmp(this_opt, "filter:", 7)) {
1674                         filter = xgifb_optval(this_opt, 7);
1675                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1676                         XGIfb_search_crt2type(this_opt + 14);
1677                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1678                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1679                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1680                         XGIfb_search_tvstd(this_opt + 7);
1681                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1682                         XGIfb_search_tvstd(this_opt + 7);
1683                 } else if (!strncmp(this_opt, "dstn", 4)) {
1684                         enable_dstn = 1;
1685                         /* DSTN overrules forcecrt2type */
1686                         XGIfb_crt2type = XGIFB_DISP_LCD;
1687                 } else if (!strncmp(this_opt, "noypan", 6)) {
1688                         XGIfb_ypan = 0;
1689                 } else {
1690                         mode = this_opt;
1691                 }
1692         }
1693         return 0;
1694 }
1695
1696 static int __devinit xgifb_probe(struct pci_dev *pdev,
1697                 const struct pci_device_id *ent)
1698 {
1699         u8 reg, reg1;
1700         u8 CR48, CR38;
1701         int ret;
1702         struct fb_info *fb_info;
1703         struct xgifb_video_info *xgifb_info;
1704         struct xgi_hw_device_info *hw_info;
1705
1706         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1707         if (!fb_info)
1708                 return -ENOMEM;
1709
1710         xgifb_info = fb_info->par;
1711         hw_info = &xgifb_info->hw_info;
1712         xgifb_info->fb_info = fb_info;
1713         xgifb_info->chip_id = pdev->device;
1714         pci_read_config_byte(pdev,
1715                              PCI_REVISION_ID,
1716                              &xgifb_info->revision_id);
1717         hw_info->jChipRevision = xgifb_info->revision_id;
1718
1719         xgifb_info->pcibus = pdev->bus->number;
1720         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1721         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1722         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1723         xgifb_info->subsysdevice = pdev->subsystem_device;
1724
1725         xgifb_info->video_base = pci_resource_start(pdev, 0);
1726         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1727         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1728         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1729         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1730                  (u64) pci_resource_start(pdev, 2),
1731                  xgifb_info->vga_base);
1732
1733         if (pci_enable_device(pdev)) {
1734                 ret = -EIO;
1735                 goto error;
1736         }
1737
1738         if (XGIfb_crt2type != -1) {
1739                 xgifb_info->display2 = XGIfb_crt2type;
1740                 xgifb_info->display2_force = true;
1741         }
1742
1743         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1744
1745         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1746         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1747
1748         if (reg1 != 0xa1) { /*I/O error */
1749                 dev_err(&pdev->dev, "I/O error\n");
1750                 ret = -EIO;
1751                 goto error_disable;
1752         }
1753
1754         switch (xgifb_info->chip_id) {
1755         case PCI_DEVICE_ID_XGI_20:
1756                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1757                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1758                 if (CR48&GPIOG_READ)
1759                         xgifb_info->chip = XG21;
1760                 else
1761                         xgifb_info->chip = XG20;
1762                 break;
1763         case PCI_DEVICE_ID_XGI_40:
1764                 xgifb_info->chip = XG40;
1765                 break;
1766         case PCI_DEVICE_ID_XGI_42:
1767                 xgifb_info->chip = XG42;
1768                 break;
1769         case PCI_DEVICE_ID_XGI_27:
1770                 xgifb_info->chip = XG27;
1771                 break;
1772         default:
1773                 ret = -ENODEV;
1774                 goto error_disable;
1775         }
1776
1777         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1778         hw_info->jChipType = xgifb_info->chip;
1779
1780         if (XGIfb_get_dram_size(xgifb_info)) {
1781                 dev_err(&pdev->dev,
1782                         "Fatal error: Unable to determine RAM size.\n");
1783                 ret = -ENODEV;
1784                 goto error_disable;
1785         }
1786
1787         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1788         xgifb_reg_or(XGISR,
1789                      IND_SIS_PCI_ADDRESS_SET,
1790                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1791         /* Enable 2D accelerator engine */
1792         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1793
1794         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1795
1796         if (!request_mem_region(xgifb_info->video_base,
1797                                 xgifb_info->video_size,
1798                                 "XGIfb FB")) {
1799                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1800                        xgifb_info->video_size);
1801                 dev_err(&pdev->dev,
1802                         "Fatal error: Unable to reserve frame buffer memory. "
1803                         "Is there another framebuffer driver active?\n");
1804                 ret = -ENODEV;
1805                 goto error_disable;
1806         }
1807
1808         if (!request_mem_region(xgifb_info->mmio_base,
1809                                 xgifb_info->mmio_size,
1810                                 "XGIfb MMIO")) {
1811                 dev_err(&pdev->dev,
1812                         "Fatal error: Unable to reserve MMIO region\n");
1813                 ret = -ENODEV;
1814                 goto error_0;
1815         }
1816
1817         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1818         ioremap(xgifb_info->video_base, xgifb_info->video_size);
1819         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1820                                             xgifb_info->mmio_size);
1821
1822         dev_info(&pdev->dev,
1823                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1824                  (u64) xgifb_info->video_base,
1825                  xgifb_info->video_vbase,
1826                  xgifb_info->video_size / 1024);
1827
1828         dev_info(&pdev->dev,
1829                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1830                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1831                  xgifb_info->mmio_size / 1024);
1832
1833         pci_set_drvdata(pdev, xgifb_info);
1834         if (!XGIInitNew(pdev))
1835                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1836
1837         xgifb_info->mtrr = (unsigned int) 0;
1838
1839         xgifb_info->hasVB = HASVB_NONE;
1840         if ((xgifb_info->chip == XG20) ||
1841             (xgifb_info->chip == XG27)) {
1842                 xgifb_info->hasVB = HASVB_NONE;
1843         } else if (xgifb_info->chip == XG21) {
1844                 CR38 = xgifb_reg_get(XGICR, 0x38);
1845                 if ((CR38&0xE0) == 0xC0)
1846                         xgifb_info->display2 = XGIFB_DISP_LCD;
1847                 else if ((CR38&0xE0) == 0x60)
1848                         xgifb_info->hasVB = HASVB_CHRONTEL;
1849                 else
1850                         xgifb_info->hasVB = HASVB_NONE;
1851         } else {
1852                 XGIfb_get_VB_type(xgifb_info);
1853         }
1854
1855         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1856
1857         hw_info->ulExternalChip = 0;
1858
1859         switch (xgifb_info->hasVB) {
1860         case HASVB_301:
1861                 reg = xgifb_reg_get(XGIPART4, 0x01);
1862                 if (reg >= 0xE0) {
1863                         hw_info->ujVBChipID = VB_CHIP_302LV;
1864                         dev_info(&pdev->dev,
1865                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1866                                  reg);
1867                 } else if (reg >= 0xD0) {
1868                         hw_info->ujVBChipID = VB_CHIP_301LV;
1869                         dev_info(&pdev->dev,
1870                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1871                                  reg);
1872                 } else {
1873                         hw_info->ujVBChipID = VB_CHIP_301;
1874                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1875                 }
1876                 break;
1877         case HASVB_302:
1878                 reg = xgifb_reg_get(XGIPART4, 0x01);
1879                 if (reg >= 0xE0) {
1880                         hw_info->ujVBChipID = VB_CHIP_302LV;
1881                         dev_info(&pdev->dev,
1882                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1883                                  reg);
1884                 } else if (reg >= 0xD0) {
1885                         hw_info->ujVBChipID = VB_CHIP_301LV;
1886                         dev_info(&pdev->dev,
1887                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1888                                  reg);
1889                 } else if (reg >= 0xB0) {
1890                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1891
1892                         hw_info->ujVBChipID = VB_CHIP_302B;
1893
1894                 } else {
1895                         hw_info->ujVBChipID = VB_CHIP_302;
1896                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1897                 }
1898                 break;
1899         case HASVB_LVDS:
1900                 hw_info->ulExternalChip = 0x1;
1901                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1902                 break;
1903         case HASVB_TRUMPION:
1904                 hw_info->ulExternalChip = 0x2;
1905                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1906                 break;
1907         case HASVB_CHRONTEL:
1908                 hw_info->ulExternalChip = 0x4;
1909                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1910                 break;
1911         case HASVB_LVDS_CHRONTEL:
1912                 hw_info->ulExternalChip = 0x5;
1913                 dev_info(&pdev->dev,
1914                          "LVDS transmitter and Chrontel TV encoder detected\n");
1915                 break;
1916         default:
1917                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1918                 break;
1919         }
1920
1921         if (xgifb_info->hasVB != HASVB_NONE)
1922                 XGIfb_detect_VB(xgifb_info);
1923         else if (xgifb_info->chip != XG21)
1924                 xgifb_info->display2 = XGIFB_DISP_NONE;
1925
1926         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1927                 if (!enable_dstn) {
1928                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1929                         reg &= 0x0f;
1930                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1931                 }
1932         }
1933
1934         xgifb_info->mode_idx = -1;
1935
1936         if (mode)
1937                 XGIfb_search_mode(xgifb_info, mode);
1938         else if (vesa != -1)
1939                 XGIfb_search_vesamode(xgifb_info, vesa);
1940
1941         if (xgifb_info->mode_idx >= 0)
1942                 xgifb_info->mode_idx =
1943                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1944
1945         if (xgifb_info->mode_idx < 0) {
1946                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1947                     xgifb_info->chip == XG21)
1948                         xgifb_info->mode_idx =
1949                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1950                 else
1951                         xgifb_info->mode_idx = DEFAULT_MODE;
1952         }
1953
1954         if (xgifb_info->mode_idx < 0) {
1955                 dev_err(&pdev->dev, "No supported video mode found\n");
1956                 goto error_1;
1957         }
1958
1959         /* set default refresh rate */
1960         xgifb_info->refresh_rate = refresh_rate;
1961         if (xgifb_info->refresh_rate == 0)
1962                 xgifb_info->refresh_rate = 60;
1963         if (XGIfb_search_refresh_rate(xgifb_info,
1964                         xgifb_info->refresh_rate) == 0) {
1965                 xgifb_info->rate_idx = 1;
1966                 xgifb_info->refresh_rate = 60;
1967         }
1968
1969         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1970         xgifb_info->video_vwidth =
1971                 xgifb_info->video_width =
1972                         XGIbios_mode[xgifb_info->mode_idx].xres;
1973         xgifb_info->video_vheight =
1974                 xgifb_info->video_height =
1975                         XGIbios_mode[xgifb_info->mode_idx].yres;
1976         xgifb_info->org_x = xgifb_info->org_y = 0;
1977         xgifb_info->video_linelength =
1978                 xgifb_info->video_width *
1979                 (xgifb_info->video_bpp >> 3);
1980         switch (xgifb_info->video_bpp) {
1981         case 8:
1982                 xgifb_info->DstColor = 0x0000;
1983                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1984                 xgifb_info->video_cmap_len = 256;
1985                 break;
1986         case 16:
1987                 xgifb_info->DstColor = 0x8000;
1988                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1989                 xgifb_info->video_cmap_len = 16;
1990                 break;
1991         case 32:
1992                 xgifb_info->DstColor = 0xC000;
1993                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1994                 xgifb_info->video_cmap_len = 16;
1995                 break;
1996         default:
1997                 xgifb_info->video_cmap_len = 16;
1998                 pr_info("Unsupported depth %d\n",
1999                        xgifb_info->video_bpp);
2000                 break;
2001         }
2002
2003         pr_info("Default mode is %dx%dx%d (%dHz)\n",
2004                xgifb_info->video_width,
2005                xgifb_info->video_height,
2006                xgifb_info->video_bpp,
2007                xgifb_info->refresh_rate);
2008
2009         fb_info->var.red.length         = 8;
2010         fb_info->var.green.length       = 8;
2011         fb_info->var.blue.length        = 8;
2012         fb_info->var.activate           = FB_ACTIVATE_NOW;
2013         fb_info->var.height             = -1;
2014         fb_info->var.width              = -1;
2015         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
2016         fb_info->var.xres               = xgifb_info->video_width;
2017         fb_info->var.xres_virtual       = xgifb_info->video_width;
2018         fb_info->var.yres               = xgifb_info->video_height;
2019         fb_info->var.yres_virtual       = xgifb_info->video_height;
2020         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
2021
2022         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
2023
2024         fb_info->var.pixclock = (u32) (1000000000 /
2025                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
2026                                 hw_info,
2027                                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2028                                 xgifb_info->rate_idx));
2029
2030         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
2031                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2032                 xgifb_info->rate_idx,
2033                 &fb_info->var.left_margin,
2034                 &fb_info->var.right_margin,
2035                 &fb_info->var.upper_margin,
2036                 &fb_info->var.lower_margin,
2037                 &fb_info->var.hsync_len,
2038                 &fb_info->var.vsync_len,
2039                 &fb_info->var.sync,
2040                 &fb_info->var.vmode)) {
2041
2042                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2043                     FB_VMODE_INTERLACED) {
2044                         fb_info->var.yres <<= 1;
2045                         fb_info->var.yres_virtual <<= 1;
2046                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2047                            FB_VMODE_DOUBLE) {
2048                         fb_info->var.pixclock >>= 1;
2049                         fb_info->var.yres >>= 1;
2050                         fb_info->var.yres_virtual >>= 1;
2051                 }
2052
2053         }
2054
2055         fb_info->flags = FBINFO_FLAG_DEFAULT;
2056         fb_info->screen_base = xgifb_info->video_vbase;
2057         fb_info->fbops = &XGIfb_ops;
2058         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2059         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2060
2061         fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2062
2063 #ifdef CONFIG_MTRR
2064         xgifb_info->mtrr = mtrr_add(xgifb_info->video_base,
2065                 xgifb_info->video_size, MTRR_TYPE_WRCOMB, 1);
2066         if (xgifb_info->mtrr >= 0)
2067                 dev_info(&pdev->dev, "Added MTRR\n");
2068 #endif
2069
2070         if (register_framebuffer(fb_info) < 0) {
2071                 ret = -EINVAL;
2072                 goto error_mtrr;
2073         }
2074
2075         dumpVGAReg();
2076
2077         return 0;
2078
2079 error_mtrr:
2080 #ifdef CONFIG_MTRR
2081         if (xgifb_info->mtrr >= 0)
2082                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2083                         xgifb_info->video_size);
2084 #endif /* CONFIG_MTRR */
2085 error_1:
2086         iounmap(xgifb_info->mmio_vbase);
2087         iounmap(xgifb_info->video_vbase);
2088         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2089 error_0:
2090         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2091 error_disable:
2092         pci_disable_device(pdev);
2093 error:
2094         framebuffer_release(fb_info);
2095         return ret;
2096 }
2097
2098 /*****************************************************/
2099 /*                PCI DEVICE HANDLING                */
2100 /*****************************************************/
2101
2102 static void __devexit xgifb_remove(struct pci_dev *pdev)
2103 {
2104         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2105         struct fb_info *fb_info = xgifb_info->fb_info;
2106
2107         unregister_framebuffer(fb_info);
2108 #ifdef CONFIG_MTRR
2109         if (xgifb_info->mtrr >= 0)
2110                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2111                         xgifb_info->video_size);
2112 #endif /* CONFIG_MTRR */
2113         iounmap(xgifb_info->mmio_vbase);
2114         iounmap(xgifb_info->video_vbase);
2115         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2116         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2117         pci_disable_device(pdev);
2118         framebuffer_release(fb_info);
2119         pci_set_drvdata(pdev, NULL);
2120 }
2121
2122 static struct pci_driver xgifb_driver = {
2123         .name = "xgifb",
2124         .id_table = xgifb_pci_table,
2125         .probe = xgifb_probe,
2126         .remove = __devexit_p(xgifb_remove)
2127 };
2128
2129
2130
2131 /*****************************************************/
2132 /*                      MODULE                       */
2133 /*****************************************************/
2134
2135 module_param(mode, charp, 0);
2136 MODULE_PARM_DESC(mode,
2137         "Selects the desired default display mode in the format XxYxDepth "
2138         "(eg. 1024x768x16).");
2139
2140 module_param(forcecrt2type, charp, 0);
2141 MODULE_PARM_DESC(forcecrt2type,
2142         "Force the second display output type. Possible values are NONE, "
2143         "LCD, TV, VGA, SVIDEO or COMPOSITE.");
2144
2145 module_param(vesa, int, 0);
2146 MODULE_PARM_DESC(vesa,
2147         "Selects the desired default display mode by VESA mode number "
2148         "(eg. 0x117).");
2149
2150 module_param(filter, int, 0);
2151 MODULE_PARM_DESC(filter,
2152         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). "
2153         "Possible values 0-7. Default: [no filter]).");
2154
2155 static int __init xgifb_init(void)
2156 {
2157         char *option = NULL;
2158
2159         if (forcecrt2type != NULL)
2160                 XGIfb_search_crt2type(forcecrt2type);
2161         if (fb_get_options("xgifb", &option))
2162                 return -ENODEV;
2163         XGIfb_setup(option);
2164
2165         return pci_register_driver(&xgifb_driver);
2166 }
2167
2168 static void __exit xgifb_remove_module(void)
2169 {
2170         pci_unregister_driver(&xgifb_driver);
2171         pr_debug("Module unloaded\n");
2172 }
2173
2174 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2175 MODULE_LICENSE("GPL");
2176 MODULE_AUTHOR("XGITECH , Others");
2177 module_init(xgifb_init);
2178 module_exit(xgifb_remove_module);