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         unsigned long required_mem;
 333
 334         if (xgifb_info->chip == XG21) {
 335                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 336                         xres = xgifb_info->lvds_data.LVDSHDE;
 337                         yres = xgifb_info->lvds_data.LVDSVDE;
 338                         if (XGIbios_mode[myindex].xres > xres)
 339                                 return -1;
 340                         if (XGIbios_mode[myindex].yres > yres)
 341                                 return -1;
 342                         if ((XGIbios_mode[myindex].xres < xres) &&
 343                             (XGIbios_mode[myindex].yres < yres)) {
 344                                 if (XGIbios_mode[myindex].bpp > 8)
 345                                         return -1;
 346                         }
 347
 348                 }
 349                 goto check_memory;
 350
 351         }
 352
 353         /* FIXME: for now, all is valid on XG27 */
 354         if (xgifb_info->chip == XG27)
 355                 goto check_memory;
 356
 357         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 358                 return -1;
 359
 360         switch (xgifb_info->display2) {
 361         case XGIFB_DISP_LCD:
 362                 switch (hw_info->ulCRT2LCDType) {
 363                 case LCD_640x480:
 364                         xres = 640;
 365                         yres = 480;
 366                         break;
 367                 case LCD_800x600:
 368                         xres = 800;
 369                         yres = 600;
 370                         break;
 371                 case LCD_1024x600:
 372                         xres = 1024;
 373                         yres = 600;
 374                         break;
 375                 case LCD_1024x768:
 376                         xres = 1024;
 377                         yres = 768;
 378                         break;
 379                 case LCD_1152x768:
 380                         xres = 1152;
 381                         yres = 768;
 382                         break;
 383                 case LCD_1280x960:
 384                         xres = 1280;
 385                         yres = 960;
 386                         break;
 387                 case LCD_1280x768:
 388                         xres = 1280;
 389                         yres = 768;
 390                         break;
 391                 case LCD_1280x1024:
 392                         xres = 1280;
 393                         yres = 1024;
 394                         break;
 395                 case LCD_1400x1050:
 396                         xres = 1400;
 397                         yres = 1050;
 398                         break;
 399                 case LCD_1600x1200:
 400                         xres = 1600;
 401                         yres = 1200;
 402                         break;
 403                 default:
 404                         xres = 0;
 405                         yres = 0;
 406                         break;
 407                 }
 408                 if (XGIbios_mode[myindex].xres > xres)
 409                         return -1;
 410                 if (XGIbios_mode[myindex].yres > yres)
 411                         return -1;
 412                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 413                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 414                         switch (XGIbios_mode[myindex].xres) {
 415                         case 512:
 416                                 if (XGIbios_mode[myindex].yres != 512)
 417                                         return -1;
 418                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 419                                         return -1;
 420                                 break;
 421                         case 640:
 422                                 if ((XGIbios_mode[myindex].yres != 400)
 423                                                 && (XGIbios_mode[myindex].yres
 424                                                                 != 480))
 425                                         return -1;
 426                                 break;
 427                         case 800:
 428                                 if (XGIbios_mode[myindex].yres != 600)
 429                                         return -1;
 430                                 break;
 431                         case 1024:
 432                                 if ((XGIbios_mode[myindex].yres != 600) &&
 433                                     (XGIbios_mode[myindex].yres != 768))
 434                                         return -1;
 435                                 if ((XGIbios_mode[myindex].yres == 600) &&
 436                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 437                                         return -1;
 438                                 break;
 439                         case 1152:
 440                                 if ((XGIbios_mode[myindex].yres) != 768)
 441                                         return -1;
 442                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 443                                         return -1;
 444                                 break;
 445                         case 1280:
 446                                 if ((XGIbios_mode[myindex].yres != 768) &&
 447                                     (XGIbios_mode[myindex].yres != 1024))
 448                                         return -1;
 449                                 if ((XGIbios_mode[myindex].yres == 768) &&
 450                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 451                                         return -1;
 452                                 break;
 453                         case 1400:
 454                                 if (XGIbios_mode[myindex].yres != 1050)
 455                                         return -1;
 456                                 break;
 457                         case 1600:
 458                                 if (XGIbios_mode[myindex].yres != 1200)
 459                                         return -1;
 460                                 break;
 461                         default:
 462                                 return -1;
 463                         }
 464                 } else {
 465                         switch (XGIbios_mode[myindex].xres) {
 466                         case 512:
 467                                 if (XGIbios_mode[myindex].yres != 512)
 468                                         return -1;
 469                                 break;
 470                         case 640:
 471                                 if ((XGIbios_mode[myindex].yres != 400) &&
 472                                     (XGIbios_mode[myindex].yres != 480))
 473                                         return -1;
 474                                 break;
 475                         case 800:
 476                                 if (XGIbios_mode[myindex].yres != 600)
 477                                         return -1;
 478                                 break;
 479                         case 1024:
 480                                 if (XGIbios_mode[myindex].yres != 768)
 481                                         return -1;
 482                                 break;
 483                         case 1280:
 484                                 if ((XGIbios_mode[myindex].yres != 960) &&
 485                                     (XGIbios_mode[myindex].yres != 1024))
 486                                         return -1;
 487                                 if (XGIbios_mode[myindex].yres == 960) {
 488                                         if (hw_info->ulCRT2LCDType ==
 489                                             LCD_1400x1050)
 490                                                 return -1;
 491                                 }
 492                                 break;
 493                         case 1400:
 494                                 if (XGIbios_mode[myindex].yres != 1050)
 495                                         return -1;
 496                                 break;
 497                         case 1600:
 498                                 if (XGIbios_mode[myindex].yres != 1200)
 499                                         return -1;
 500                                 break;
 501                         default:
 502                                 return -1;
 503                         }
 504                 }
 505                 break;
 506         case XGIFB_DISP_TV:
 507                 switch (XGIbios_mode[myindex].xres) {
 508                 case 512:
 509                 case 640:
 510                 case 800:
 511                         break;
 512                 case 720:
 513                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 514                                 if (XGIbios_mode[myindex].yres != 480)
 515                                         return -1;
 516                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 517                                 if (XGIbios_mode[myindex].yres != 576)
 518                                         return -1;
 519                         }
 520                         /* LVDS/CHRONTEL does not support 720 */
 521                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 522                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 523                                 return -1;
 524                         }
 525                         break;
 526                 case 1024:
 527                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 528                                 if (XGIbios_mode[myindex].bpp == 32)
 529                                         return -1;
 530                         }
 531                         break;
 532                 default:
 533                         return -1;
 534                 }
 535                 break;
 536         case XGIFB_DISP_CRT:
 537                 if (XGIbios_mode[myindex].xres > 1280)
 538                         return -1;
 539                 break;
 540         case XGIFB_DISP_NONE:
 541                 break;
 542         }
 543
 544 check_memory:
 545         required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
 546                        XGIbios_mode[myindex].bpp / 8;
 547         if (required_mem > xgifb_info->video_size)
 548                 return -1;
 549         return myindex;
 550
 551 }
 552
 553 static void XGIfb_search_crt2type(const char *name)
 554 {
 555         int i = 0;
 556
 557         if (name == NULL)
 558                 return;
 559
 560         while (XGI_crt2type[i].type_no != -1) {
 561                 if (!strcmp(name, XGI_crt2type[i].name)) {
 562                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 563                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 564                         break;
 565                 }
 566                 i++;
 567         }
 568         if (XGIfb_crt2type < 0)
 569                 pr_info("Invalid CRT2 type: %s\n", name);
 570 }
 571
 572 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 573                                     unsigned int rate)
 574 {
 575         u16 xres, yres;
 576         int i = 0;
 577
 578         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 579         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 580
 581         xgifb_info->rate_idx = 0;
 582         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 583                 if ((XGIfb_vrate[i].xres == xres) &&
 584                     (XGIfb_vrate[i].yres == yres)) {
 585                         if (XGIfb_vrate[i].refresh == rate) {
 586                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 587                                 break;
 588                         } else if (XGIfb_vrate[i].refresh > rate) {
 589                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 590                                         pr_debug("Adjusting rate from %d up to %d\n",
 591                                                  rate, XGIfb_vrate[i].refresh);
 592                                         xgifb_info->rate_idx =
 593                                                 XGIfb_vrate[i].idx;
 594                                         xgifb_info->refresh_rate =
 595                                                 XGIfb_vrate[i].refresh;
 596                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 597                                                 <= 2) && (XGIfb_vrate[i].idx
 598                                                 != 1)) {
 599                                         pr_debug("Adjusting rate from %d down to %d\n",
 600                                                  rate,
 601                                                  XGIfb_vrate[i-1].refresh);
 602                                         xgifb_info->rate_idx =
 603                                                 XGIfb_vrate[i - 1].idx;
 604                                         xgifb_info->refresh_rate =
 605                                                 XGIfb_vrate[i - 1].refresh;
 606                                 }
 607                                 break;
 608                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 609                                 pr_debug("Adjusting rate from %d down to %d\n",
 610                                          rate, XGIfb_vrate[i].refresh);
 611                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 612                                 break;
 613                         }
 614                 }
 615                 i++;
 616         }
 617         if (xgifb_info->rate_idx > 0) {
 618                 return xgifb_info->rate_idx;
 619         } else {
 620                 pr_info("Unsupported rate %d for %dx%d\n",
 621                        rate, xres, yres);
 622                 return 0;
 623         }
 624 }
 625
 626 static void XGIfb_search_tvstd(const char *name)
 627 {
 628         int i = 0;
 629
 630         if (name == NULL)
 631                 return;
 632
 633         while (XGI_tvtype[i].type_no != -1) {
 634                 if (!strcmp(name, XGI_tvtype[i].name)) {
 635                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 636                         break;
 637                 }
 638                 i++;
 639         }
 640 }
 641
 642 /* ----------- FBDev related routines for all series ----------- */
 643
 644 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 645                              struct fb_var_screeninfo *var)
 646 {
 647         switch (var->bits_per_pixel) {
 648         case 8:
 649                 var->red.offset = var->green.offset = var->blue.offset = 0;
 650                 var->red.length = var->green.length = var->blue.length = 6;
 651                 xgifb_info->video_cmap_len = 256;
 652                 break;
 653         case 16:
 654                 var->red.offset = 11;
 655                 var->red.length = 5;
 656                 var->green.offset = 5;
 657                 var->green.length = 6;
 658                 var->blue.offset = 0;
 659                 var->blue.length = 5;
 660                 var->transp.offset = 0;
 661                 var->transp.length = 0;
 662                 xgifb_info->video_cmap_len = 16;
 663                 break;
 664         case 32:
 665                 var->red.offset = 16;
 666                 var->red.length = 8;
 667                 var->green.offset = 8;
 668                 var->green.length = 8;
 669                 var->blue.offset = 0;
 670                 var->blue.length = 8;
 671                 var->transp.offset = 24;
 672                 var->transp.length = 8;
 673                 xgifb_info->video_cmap_len = 16;
 674                 break;
 675         }
 676 }
 677
 678 /* --------------------- SetMode routines ------------------------- */
 679
 680 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 681 {
 682         u8 cr30 = 0, cr31 = 0;
 683
 684         cr31 = xgifb_reg_get(XGICR, 0x31);
 685         cr31 &= ~0x60;
 686
 687         switch (xgifb_info->display2) {
 688         case XGIFB_DISP_CRT:
 689                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 690                 cr31 |= SIS_DRIVER_MODE;
 691                 break;
 692         case XGIFB_DISP_LCD:
 693                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 694                 cr31 |= SIS_DRIVER_MODE;
 695                 break;
 696         case XGIFB_DISP_TV:
 697                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 698                         cr30 = (SIS_VB_OUTPUT_HIVISION
 699                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 700                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 701                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 702                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 703                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 704                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 705                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 706                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 707                         cr30 = (SIS_VB_OUTPUT_SCART
 708                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 709                 cr31 |= SIS_DRIVER_MODE;
 710
 711                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 712                         cr31 |= 0x01;
 713                 else
 714                         cr31 &= ~0x01;
 715                 break;
 716         default: /* disable CRT2 */
 717                 cr30 = 0x00;
 718                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 719         }
 720
 721         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 722         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 723         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 724                                                 (xgifb_info->rate_idx & 0x0F));
 725 }
 726
 727 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 728 {
 729         u8 reg;
 730         unsigned char doit = 1;
 731
 732         if (xgifb_info->video_bpp == 8) {
 733                 /*
 734                  * We can't switch off CRT1 on LVDS/Chrontel
 735                  * in 8bpp Modes
 736                  */
 737                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 738                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 739                         doit = 0;
 740                 }
 741                 /*
 742                  * We can't switch off CRT1 on 301B-DH
 743                  * in 8bpp Modes if using LCD
 744                  */
 745                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 746                         doit = 0;
 747         }
 748
 749         /* We can't switch off CRT1 if bridge is in slave mode */
 750         if (xgifb_info->hasVB != HASVB_NONE) {
 751                 reg = xgifb_reg_get(XGIPART1, 0x00);
 752
 753                 if ((reg & 0x50) == 0x10)
 754                         doit = 0;
 755
 756         } else {
 757                 XGIfb_crt1off = 0;
 758         }
 759
 760         reg = xgifb_reg_get(XGICR, 0x17);
 761         if ((XGIfb_crt1off) && (doit))
 762                 reg &= ~0x80;
 763         else
 764                 reg |= 0x80;
 765         xgifb_reg_set(XGICR, 0x17, reg);
 766
 767         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 768
 769         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 770             xgifb_info->hasVB == HASVB_301) {
 771
 772                 reg = xgifb_reg_get(XGIPART4, 0x01);
 773
 774                 if (reg < 0xB0) { /* Set filter for XGI301 */
 775                         int filter_tb;
 776
 777                         switch (xgifb_info->video_width) {
 778                         case 320:
 779                                 filter_tb = (xgifb_info->TV_type ==
 780                                              TVMODE_NTSC) ? 4 : 12;
 781                                 break;
 782                         case 640:
 783                                 filter_tb = (xgifb_info->TV_type ==
 784                                              TVMODE_NTSC) ? 5 : 13;
 785                                 break;
 786                         case 720:
 787                                 filter_tb = (xgifb_info->TV_type ==
 788                                              TVMODE_NTSC) ? 6 : 14;
 789                                 break;
 790                         case 800:
 791                                 filter_tb = (xgifb_info->TV_type ==
 792                                              TVMODE_NTSC) ? 7 : 15;
 793                                 break;
 794                         default:
 795                                 filter_tb = 0;
 796                                 filter = -1;
 797                                 break;
 798                         }
 799                         xgifb_reg_or(XGIPART1,
 800                                      SIS_CRT2_WENABLE_315,
 801                                      0x01);
 802
 803                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 804
 805                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 806
 807                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 808
 809                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 810
 811                                 } else if (xgifb_info->TV_plug
 812                                                 == TVPLUG_COMPOSITE) {
 813
 814                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 815
 816                                         switch (xgifb_info->video_width) {
 817                                         case 640:
 818                                                 xgifb_reg_set(XGIPART2,
 819                                                               0x35,
 820                                                               0xEB);
 821                                                 xgifb_reg_set(XGIPART2,
 822                                                               0x36,
 823                                                               0x04);
 824                                                 xgifb_reg_set(XGIPART2,
 825                                                               0x37,
 826                                                               0x25);
 827                                                 xgifb_reg_set(XGIPART2,
 828                                                               0x38,
 829                                                               0x18);
 830                                                 break;
 831                                         case 720:
 832                                                 xgifb_reg_set(XGIPART2,
 833                                                               0x35,
 834                                                               0xEE);
 835                                                 xgifb_reg_set(XGIPART2,
 836                                                               0x36,
 837                                                               0x0C);
 838                                                 xgifb_reg_set(XGIPART2,
 839                                                               0x37,
 840                                                               0x22);
 841                                                 xgifb_reg_set(XGIPART2,
 842                                                               0x38,
 843                                                               0x08);
 844                                                 break;
 845                                         case 800:
 846                                                 xgifb_reg_set(XGIPART2,
 847                                                               0x35,
 848                                                               0xEB);
 849                                                 xgifb_reg_set(XGIPART2,
 850                                                               0x36,
 851                                                               0x15);
 852                                                 xgifb_reg_set(XGIPART2,
 853                                                               0x37,
 854                                                               0x25);
 855                                                 xgifb_reg_set(XGIPART2,
 856                                                               0x38,
 857                                                               0xF6);
 858                                                 break;
 859                                         }
 860                                 }
 861
 862                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 863
 864                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 865
 866                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 867
 868                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 869
 870                                 } else if (xgifb_info->TV_plug
 871                                                 == TVPLUG_COMPOSITE) {
 872
 873                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 874
 875                                         switch (xgifb_info->video_width) {
 876                                         case 640:
 877                                                 xgifb_reg_set(XGIPART2,
 878                                                               0x35,
 879                                                               0xF1);
 880                                                 xgifb_reg_set(XGIPART2,
 881                                                               0x36,
 882                                                               0xF7);
 883                                                 xgifb_reg_set(XGIPART2,
 884                                                               0x37,
 885                                                               0x1F);
 886                                                 xgifb_reg_set(XGIPART2,
 887                                                               0x38,
 888                                                               0x32);
 889                                                 break;
 890                                         case 720:
 891                                                 xgifb_reg_set(XGIPART2,
 892                                                               0x35,
 893                                                               0xF3);
 894                                                 xgifb_reg_set(XGIPART2,
 895                                                               0x36,
 896                                                               0x00);
 897                                                 xgifb_reg_set(XGIPART2,
 898                                                               0x37,
 899                                                               0x1D);
 900                                                 xgifb_reg_set(XGIPART2,
 901                                                               0x38,
 902                                                               0x20);
 903                                                 break;
 904                                         case 800:
 905                                                 xgifb_reg_set(XGIPART2,
 906                                                               0x35,
 907                                                               0xFC);
 908                                                 xgifb_reg_set(XGIPART2,
 909                                                               0x36,
 910                                                               0xFB);
 911                                                 xgifb_reg_set(XGIPART2,
 912                                                               0x37,
 913                                                               0x14);
 914                                                 xgifb_reg_set(XGIPART2,
 915                                                               0x38,
 916                                                               0x2A);
 917                                                 break;
 918                                         }
 919                                 }
 920                         }
 921
 922                         if ((filter >= 0) && (filter <= 7)) {
 923                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 924                                          filter_tb, filter,
 925                                          4, XGI_TV_filter[filter_tb].
 926                                                    filter[filter]);
 927                                 xgifb_reg_set(
 928                                         XGIPART2,
 929                                         0x35,
 930                                         (XGI_TV_filter[filter_tb].
 931                                                 filter[filter][0]));
 932                                 xgifb_reg_set(
 933                                         XGIPART2,
 934                                         0x36,
 935                                         (XGI_TV_filter[filter_tb].
 936                                                 filter[filter][1]));
 937                                 xgifb_reg_set(
 938                                         XGIPART2,
 939                                         0x37,
 940                                         (XGI_TV_filter[filter_tb].
 941                                                 filter[filter][2]));
 942                                 xgifb_reg_set(
 943                                         XGIPART2,
 944                                         0x38,
 945                                         (XGI_TV_filter[filter_tb].
 946                                                 filter[filter][3]));
 947                         }
 948                 }
 949         }
 950 }
 951
 952 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 953                 struct fb_info *info)
 954 {
 955         struct xgifb_video_info *xgifb_info = info->par;
 956         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 957         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 958                         + var->hsync_len;
 959         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 960                         + var->vsync_len;
 961 #if defined(__powerpc__)
 962         u8 cr_data;
 963 #endif
 964         unsigned int drate = 0, hrate = 0;
 965         int found_mode = 0;
 966         int old_mode;
 967
 968         info->var.xres_virtual = var->xres_virtual;
 969         info->var.yres_virtual = var->yres_virtual;
 970         info->var.bits_per_pixel = var->bits_per_pixel;
 971
 972         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 973                 vtotal <<= 1;
 974         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 975                 vtotal <<= 2;
 976
 977         if (!htotal || !vtotal) {
 978                 pr_debug("Invalid 'var' information\n");
 979                 return -EINVAL;
 980         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 981                         var->pixclock, htotal, vtotal);
 982
 983         if (var->pixclock && htotal && vtotal) {
 984                 drate = 1000000000 / var->pixclock;
 985                 hrate = (drate * 1000) / htotal;
 986                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 987                                 / vtotal);
 988         } else {
 989                 xgifb_info->refresh_rate = 60;
 990         }
 991
 992         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 993                var->xres,
 994                var->yres,
 995                var->bits_per_pixel,
 996                xgifb_info->refresh_rate);
 997
 998         old_mode = xgifb_info->mode_idx;
 999         xgifb_info->mode_idx = 0;
1000
1001         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
1002                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
1003                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
1004                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
1005                     (XGIbios_mode[xgifb_info->mode_idx].bpp
1006                                                 == var->bits_per_pixel)) {
1007                         found_mode = 1;
1008                         break;
1009                 }
1010                 xgifb_info->mode_idx++;
1011         }
1012
1013         if (found_mode)
1014                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
1015                                                         xgifb_info->mode_idx);
1016         else
1017                 xgifb_info->mode_idx = -1;
1018
1019         if (xgifb_info->mode_idx < 0) {
1020                 pr_err("Mode %dx%dx%d not supported\n",
1021                        var->xres, var->yres, var->bits_per_pixel);
1022                 xgifb_info->mode_idx = old_mode;
1023                 return -EINVAL;
1024         }
1025
1026         if (XGIfb_search_refresh_rate(xgifb_info,
1027                                       xgifb_info->refresh_rate) == 0) {
1028                 xgifb_info->rate_idx = 1;
1029                 xgifb_info->refresh_rate = 60;
1030         }
1031
1032         if (isactive) {
1033
1034                 XGIfb_pre_setmode(xgifb_info);
1035                 if (XGISetModeNew(xgifb_info, hw_info,
1036                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1037                                         == 0) {
1038                         pr_err("Setting mode[0x%x] failed\n",
1039                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1040                         return -EINVAL;
1041                 }
1042                 info->fix.line_length = ((info->var.xres_virtual
1043                                 * info->var.bits_per_pixel) >> 6);
1044
1045                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1046
1047                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1048                 xgifb_reg_set(XGISR,
1049                               0x0E,
1050                               (info->fix.line_length & 0xff00) >> 8);
1051
1052                 XGIfb_post_setmode(xgifb_info);
1053
1054                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1055                          XGIbios_mode[xgifb_info->mode_idx].xres,
1056                          XGIbios_mode[xgifb_info->mode_idx].yres,
1057                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1058                          xgifb_info->refresh_rate);
1059
1060                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1061                 xgifb_info->video_vwidth = info->var.xres_virtual;
1062                 xgifb_info->video_width =
1063                         XGIbios_mode[xgifb_info->mode_idx].xres;
1064                 xgifb_info->video_vheight = info->var.yres_virtual;
1065                 xgifb_info->video_height =
1066                         XGIbios_mode[xgifb_info->mode_idx].yres;
1067                 xgifb_info->org_x = xgifb_info->org_y = 0;
1068                 xgifb_info->video_linelength = info->var.xres_virtual
1069                                 * (xgifb_info->video_bpp >> 3);
1070                 switch (xgifb_info->video_bpp) {
1071                 case 8:
1072                         xgifb_info->DstColor = 0x0000;
1073                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1074                         xgifb_info->video_cmap_len = 256;
1075 #if defined(__powerpc__)
1076                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1077                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1078 #endif
1079                         break;
1080                 case 16:
1081                         xgifb_info->DstColor = 0x8000;
1082                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1083 #if defined(__powerpc__)
1084                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1085                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1086 #endif
1087                         xgifb_info->video_cmap_len = 16;
1088                         break;
1089                 case 32:
1090                         xgifb_info->DstColor = 0xC000;
1091                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1092                         xgifb_info->video_cmap_len = 16;
1093 #if defined(__powerpc__)
1094                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1095                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1096 #endif
1097                         break;
1098                 default:
1099                         xgifb_info->video_cmap_len = 16;
1100                         pr_err("Unsupported depth %d\n",
1101                                xgifb_info->video_bpp);
1102                         break;
1103                 }
1104         }
1105         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1106
1107         dumpVGAReg();
1108         return 0;
1109 }
1110
1111 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1112 {
1113         struct xgifb_video_info *xgifb_info = info->par;
1114         unsigned int base;
1115
1116         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1117
1118         /* calculate base bpp dep. */
1119         switch (info->var.bits_per_pixel) {
1120         case 16:
1121                 base >>= 1;
1122                 break;
1123         case 32:
1124                 break;
1125         case 8:
1126         default:
1127                 base >>= 2;
1128                 break;
1129         }
1130
1131         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1132
1133         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1134         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1135         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1136         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1137         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1138
1139         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1140                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1141                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1142                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1143                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1144                 xgifb_reg_and_or(XGIPART1,
1145                                  0x02,
1146                                  0x7F,
1147                                  ((base >> 24) & 0x01) << 7);
1148         }
1149         return 0;
1150 }
1151
1152 static int XGIfb_open(struct fb_info *info, int user)
1153 {
1154         return 0;
1155 }
1156
1157 static int XGIfb_release(struct fb_info *info, int user)
1158 {
1159         return 0;
1160 }
1161
1162 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1163 {
1164         int rc = 16;
1165
1166         switch (var->bits_per_pixel) {
1167         case 8:
1168                 rc = 256;
1169                 break;
1170         case 16:
1171                 rc = 16;
1172                 break;
1173         case 32:
1174                 rc = 16;
1175                 break;
1176         }
1177         return rc;
1178 }
1179
1180 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1181                 unsigned blue, unsigned transp, struct fb_info *info)
1182 {
1183         struct xgifb_video_info *xgifb_info = info->par;
1184
1185         if (regno >= XGIfb_get_cmap_len(&info->var))
1186                 return 1;
1187
1188         switch (info->var.bits_per_pixel) {
1189         case 8:
1190                 outb(regno, XGIDACA);
1191                 outb((red >> 10), XGIDACD);
1192                 outb((green >> 10), XGIDACD);
1193                 outb((blue >> 10), XGIDACD);
1194                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1195                         outb(regno, XGIDAC2A);
1196                         outb((red >> 8), XGIDAC2D);
1197                         outb((green >> 8), XGIDAC2D);
1198                         outb((blue >> 8), XGIDAC2D);
1199                 }
1200                 break;
1201         case 16:
1202                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1203                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1204                                 >> 11);
1205                 break;
1206         case 32:
1207                 red >>= 8;
1208                 green >>= 8;
1209                 blue >>= 8;
1210                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1211                                 << 8) | (blue);
1212                 break;
1213         }
1214         return 0;
1215 }
1216
1217 /* ----------- FBDev related routines for all series ---------- */
1218
1219 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1220                 struct fb_info *info)
1221 {
1222         struct xgifb_video_info *xgifb_info = info->par;
1223
1224         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1225
1226         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1227
1228         /* if register_framebuffer has been called, we must lock */
1229         if (atomic_read(&info->count))
1230                 mutex_lock(&info->mm_lock);
1231
1232         fix->smem_start = xgifb_info->video_base;
1233         fix->smem_len = xgifb_info->video_size;
1234
1235         /* if register_framebuffer has been called, we can unlock */
1236         if (atomic_read(&info->count))
1237                 mutex_unlock(&info->mm_lock);
1238
1239         fix->type = FB_TYPE_PACKED_PIXELS;
1240         fix->type_aux = 0;
1241         if (xgifb_info->video_bpp == 8)
1242                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1243         else
1244                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1245         fix->xpanstep = 0;
1246         if (XGIfb_ypan)
1247                 fix->ypanstep = 1;
1248         fix->ywrapstep = 0;
1249         fix->line_length = xgifb_info->video_linelength;
1250         fix->mmio_start = xgifb_info->mmio_base;
1251         fix->mmio_len = xgifb_info->mmio_size;
1252         fix->accel = FB_ACCEL_SIS_XABRE;
1253
1254         return 0;
1255 }
1256
1257 static int XGIfb_set_par(struct fb_info *info)
1258 {
1259         int err;
1260
1261         err = XGIfb_do_set_var(&info->var, 1, info);
1262         if (err)
1263                 return err;
1264         XGIfb_get_fix(&info->fix, -1, info);
1265         return 0;
1266 }
1267
1268 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1269 {
1270         struct xgifb_video_info *xgifb_info = info->par;
1271         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1272                         + var->hsync_len;
1273         unsigned int vtotal = 0;
1274         unsigned int drate = 0, hrate = 0;
1275         int found_mode = 0;
1276         int refresh_rate, search_idx;
1277
1278         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1279                 vtotal = var->upper_margin + var->yres + var->lower_margin
1280                                 + var->vsync_len;
1281                 vtotal <<= 1;
1282         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1283                 vtotal = var->upper_margin + var->yres + var->lower_margin
1284                                 + var->vsync_len;
1285                 vtotal <<= 2;
1286         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1287                 vtotal = var->upper_margin + (var->yres / 2)
1288                                 + var->lower_margin + var->vsync_len;
1289         } else
1290                 vtotal = var->upper_margin + var->yres + var->lower_margin
1291                                 + var->vsync_len;
1292
1293         if (!(htotal) || !(vtotal)) {
1294                 pr_debug("No valid timing data\n");
1295                 return -EINVAL;
1296         }
1297
1298         if (var->pixclock && htotal && vtotal) {
1299                 drate = 1000000000 / var->pixclock;
1300                 hrate = (drate * 1000) / htotal;
1301                 xgifb_info->refresh_rate =
1302                         (unsigned int) (hrate * 2 / vtotal);
1303                 pr_debug(
1304                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1305                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1306                         __func__, var->pixclock, htotal, vtotal,
1307                         __func__, drate, hrate, xgifb_info->refresh_rate);
1308         } else {
1309                 xgifb_info->refresh_rate = 60;
1310         }
1311
1312         /* Calculation wrong for 1024x600 - force it to 60Hz */
1313         if ((var->xres == 1024) && (var->yres == 600))
1314                 refresh_rate = 60;
1315
1316         search_idx = 0;
1317         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1318                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1319                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1320                         (XGIbios_mode[search_idx].yres == var->yres) &&
1321                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1322                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1323                                 found_mode = 1;
1324                                 break;
1325                         }
1326                 }
1327                 search_idx++;
1328         }
1329
1330         if (!found_mode) {
1331
1332                 pr_err("%dx%dx%d is no valid mode\n",
1333                         var->xres, var->yres, var->bits_per_pixel);
1334                 search_idx = 0;
1335                 while (XGIbios_mode[search_idx].mode_no != 0) {
1336                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1337                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1338                             (var->bits_per_pixel ==
1339                              XGIbios_mode[search_idx].bpp)) {
1340                                 if (XGIfb_validate_mode(xgifb_info,
1341                                                         search_idx) > 0) {
1342                                         found_mode = 1;
1343                                         break;
1344                                 }
1345                         }
1346                         search_idx++;
1347                 }
1348                 if (found_mode) {
1349                         var->xres = XGIbios_mode[search_idx].xres;
1350                         var->yres = XGIbios_mode[search_idx].yres;
1351                         pr_debug("Adapted to mode %dx%dx%d\n",
1352                                 var->xres, var->yres, var->bits_per_pixel);
1353
1354                 } else {
1355                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1356                                 var->xres, var->yres, var->bits_per_pixel);
1357                         return -EINVAL;
1358                 }
1359         }
1360
1361         /* Adapt RGB settings */
1362         XGIfb_bpp_to_var(xgifb_info, var);
1363
1364         /* Sanity check for offsets */
1365         if (var->xoffset < 0)
1366                 var->xoffset = 0;
1367         if (var->yoffset < 0)
1368                 var->yoffset = 0;
1369
1370         if (!XGIfb_ypan) {
1371                 if (var->xres != var->xres_virtual)
1372                         var->xres_virtual = var->xres;
1373                 if (var->yres != var->yres_virtual)
1374                         var->yres_virtual = var->yres;
1375         }
1376
1377         /* Truncate offsets to maximum if too high */
1378         if (var->xoffset > var->xres_virtual - var->xres)
1379                 var->xoffset = var->xres_virtual - var->xres - 1;
1380
1381         if (var->yoffset > var->yres_virtual - var->yres)
1382                 var->yoffset = var->yres_virtual - var->yres - 1;
1383
1384         /* Set everything else to 0 */
1385         var->red.msb_right =
1386         var->green.msb_right =
1387         var->blue.msb_right =
1388         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1389
1390         return 0;
1391 }
1392
1393 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1394                 struct fb_info *info)
1395 {
1396         int err;
1397
1398         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1399                 return -EINVAL;
1400         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1401                 return -EINVAL;
1402
1403         if (var->vmode & FB_VMODE_YWRAP) {
1404                 if (var->yoffset < 0 || var->yoffset >= info->var.yres_virtual
1405                                 || var->xoffset)
1406                         return -EINVAL;
1407         } else if (var->xoffset + info->var.xres > info->var.xres_virtual
1408                                 || var->yoffset + info->var.yres
1409                                                 > info->var.yres_virtual) {
1410                 return -EINVAL;
1411         }
1412         err = XGIfb_pan_var(var, info);
1413         if (err < 0)
1414                 return err;
1415
1416         info->var.xoffset = var->xoffset;
1417         info->var.yoffset = var->yoffset;
1418         if (var->vmode & FB_VMODE_YWRAP)
1419                 info->var.vmode |= FB_VMODE_YWRAP;
1420         else
1421                 info->var.vmode &= ~FB_VMODE_YWRAP;
1422
1423         return 0;
1424 }
1425
1426 static int XGIfb_blank(int blank, struct fb_info *info)
1427 {
1428         struct xgifb_video_info *xgifb_info = info->par;
1429         u8 reg;
1430
1431         reg = xgifb_reg_get(XGICR, 0x17);
1432
1433         if (blank > 0)
1434                 reg &= 0x7f;
1435         else
1436                 reg |= 0x80;
1437
1438         xgifb_reg_set(XGICR, 0x17, reg);
1439         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1440         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1441         return 0;
1442 }
1443
1444 static struct fb_ops XGIfb_ops = {
1445         .owner = THIS_MODULE,
1446         .fb_open = XGIfb_open,
1447         .fb_release = XGIfb_release,
1448         .fb_check_var = XGIfb_check_var,
1449         .fb_set_par = XGIfb_set_par,
1450         .fb_setcolreg = XGIfb_setcolreg,
1451         .fb_pan_display = XGIfb_pan_display,
1452         .fb_blank = XGIfb_blank,
1453         .fb_fillrect = cfb_fillrect,
1454         .fb_copyarea = cfb_copyarea,
1455         .fb_imageblit = cfb_imageblit,
1456 };
1457
1458 /* ---------------- Chip generation dependent routines ---------------- */
1459
1460 /* for XGI 315/550/650/740/330 */
1461
1462 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1463 {
1464
1465         u8 ChannelNum, tmp;
1466         u8 reg = 0;
1467
1468         /* xorg driver sets 32MB * 1 channel */
1469         if (xgifb_info->chip == XG27)
1470                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1471
1472         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1473         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1474         case XGI_DRAM_SIZE_1MB:
1475                 xgifb_info->video_size = 0x100000;
1476                 break;
1477         case XGI_DRAM_SIZE_2MB:
1478                 xgifb_info->video_size = 0x200000;
1479                 break;
1480         case XGI_DRAM_SIZE_4MB:
1481                 xgifb_info->video_size = 0x400000;
1482                 break;
1483         case XGI_DRAM_SIZE_8MB:
1484                 xgifb_info->video_size = 0x800000;
1485                 break;
1486         case XGI_DRAM_SIZE_16MB:
1487                 xgifb_info->video_size = 0x1000000;
1488                 break;
1489         case XGI_DRAM_SIZE_32MB:
1490                 xgifb_info->video_size = 0x2000000;
1491                 break;
1492         case XGI_DRAM_SIZE_64MB:
1493                 xgifb_info->video_size = 0x4000000;
1494                 break;
1495         case XGI_DRAM_SIZE_128MB:
1496                 xgifb_info->video_size = 0x8000000;
1497                 break;
1498         case XGI_DRAM_SIZE_256MB:
1499                 xgifb_info->video_size = 0x10000000;
1500                 break;
1501         default:
1502                 return -1;
1503         }
1504
1505         tmp = (reg & 0x0c) >> 2;
1506         switch (xgifb_info->chip) {
1507         case XG20:
1508         case XG21:
1509         case XG27:
1510                 ChannelNum = 1;
1511                 break;
1512
1513         case XG42:
1514                 if (reg & 0x04)
1515                         ChannelNum = 2;
1516                 else
1517                         ChannelNum = 1;
1518                 break;
1519
1520         case XG40:
1521         default:
1522                 if (tmp == 2)
1523                         ChannelNum = 2;
1524                 else if (tmp == 3)
1525                         ChannelNum = 3;
1526                 else
1527                         ChannelNum = 1;
1528                 break;
1529         }
1530
1531         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1532
1533         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1534                reg,
1535                xgifb_info->video_size, ChannelNum);
1536         return 0;
1537
1538 }
1539
1540 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1541 {
1542         u8 cr32, temp = 0;
1543
1544         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1545
1546         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1547
1548         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1549                 XGIfb_crt1off = 0;
1550         else {
1551                 if (cr32 & 0x5F)
1552                         XGIfb_crt1off = 1;
1553                 else
1554                         XGIfb_crt1off = 0;
1555         }
1556
1557         if (!xgifb_info->display2_force) {
1558                 if (cr32 & SIS_VB_TV)
1559                         xgifb_info->display2 = XGIFB_DISP_TV;
1560                 else if (cr32 & SIS_VB_LCD)
1561                         xgifb_info->display2 = XGIFB_DISP_LCD;
1562                 else if (cr32 & SIS_VB_CRT2)
1563                         xgifb_info->display2 = XGIFB_DISP_CRT;
1564                 else
1565                         xgifb_info->display2 = XGIFB_DISP_NONE;
1566         }
1567
1568         if (XGIfb_tvplug != -1)
1569                 /* Override with option */
1570                 xgifb_info->TV_plug = XGIfb_tvplug;
1571         else if (cr32 & SIS_VB_HIVISION) {
1572                 xgifb_info->TV_type = TVMODE_HIVISION;
1573                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1574         } else if (cr32 & SIS_VB_SVIDEO)
1575                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1576         else if (cr32 & SIS_VB_COMPOSITE)
1577                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1578         else if (cr32 & SIS_VB_SCART)
1579                 xgifb_info->TV_plug = TVPLUG_SCART;
1580
1581         if (xgifb_info->TV_type == 0) {
1582                 temp = xgifb_reg_get(XGICR, 0x38);
1583                 if (temp & 0x10)
1584                         xgifb_info->TV_type = TVMODE_PAL;
1585                 else
1586                         xgifb_info->TV_type = TVMODE_NTSC;
1587         }
1588
1589         /* Copy forceCRT1 option to CRT1off if option is given */
1590         if (XGIfb_forcecrt1 != -1) {
1591                 if (XGIfb_forcecrt1)
1592                         XGIfb_crt1off = 0;
1593                 else
1594                         XGIfb_crt1off = 1;
1595         }
1596 }
1597
1598 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1599 {
1600         u8 vb_chipid;
1601
1602         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1603         switch (vb_chipid) {
1604         case 0x01:
1605                 xgifb_info->hasVB = HASVB_301;
1606                 break;
1607         case 0x02:
1608                 xgifb_info->hasVB = HASVB_302;
1609                 break;
1610         default:
1611                 xgifb_info->hasVB = HASVB_NONE;
1612                 return 0;
1613         }
1614         return 1;
1615 }
1616
1617 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1618 {
1619         u8 reg;
1620
1621         if (!XGIfb_has_VB(xgifb_info)) {
1622                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1623                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1624                 case SIS_EXTERNAL_CHIP_LVDS:
1625                         xgifb_info->hasVB = HASVB_LVDS;
1626                         break;
1627                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1628                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1629                         break;
1630                 default:
1631                         break;
1632                 }
1633         }
1634 }
1635
1636 static int __init xgifb_optval(char *fullopt, int validx)
1637 {
1638         unsigned long lres;
1639
1640         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1641                 pr_err("Invalid value for option: %s\n", fullopt);
1642                 return 0;
1643         }
1644         return lres;
1645 }
1646
1647 static int __init XGIfb_setup(char *options)
1648 {
1649         char *this_opt;
1650
1651         if (!options || !*options)
1652                 return 0;
1653
1654         pr_info("Options: %s\n", options);
1655
1656         while ((this_opt = strsep(&options, ",")) != NULL) {
1657
1658                 if (!*this_opt)
1659                         continue;
1660
1661                 if (!strncmp(this_opt, "mode:", 5)) {
1662                         mode = this_opt + 5;
1663                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1664                         vesa = xgifb_optval(this_opt, 5);
1665                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1666                         refresh_rate = xgifb_optval(this_opt, 6);
1667                 } else if (!strncmp(this_opt, "rate:", 5)) {
1668                         refresh_rate = xgifb_optval(this_opt, 5);
1669                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1670                         XGIfb_crt1off = 1;
1671                 } else if (!strncmp(this_opt, "filter:", 7)) {
1672                         filter = xgifb_optval(this_opt, 7);
1673                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1674                         XGIfb_search_crt2type(this_opt + 14);
1675                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1676                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1677                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1678                         XGIfb_search_tvstd(this_opt + 7);
1679                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1680                         XGIfb_search_tvstd(this_opt + 7);
1681                 } else if (!strncmp(this_opt, "dstn", 4)) {
1682                         enable_dstn = 1;
1683                         /* DSTN overrules forcecrt2type */
1684                         XGIfb_crt2type = XGIFB_DISP_LCD;
1685                 } else if (!strncmp(this_opt, "noypan", 6)) {
1686                         XGIfb_ypan = 0;
1687                 } else {
1688                         mode = this_opt;
1689                 }
1690         }
1691         return 0;
1692 }
1693
1694 static int __devinit xgifb_probe(struct pci_dev *pdev,
1695                 const struct pci_device_id *ent)
1696 {
1697         u8 reg, reg1;
1698         u8 CR48, CR38;
1699         int ret;
1700         struct fb_info *fb_info;
1701         struct xgifb_video_info *xgifb_info;
1702         struct xgi_hw_device_info *hw_info;
1703         unsigned long video_size_max;
1704
1705         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1706         if (!fb_info)
1707                 return -ENOMEM;
1708
1709         xgifb_info = fb_info->par;
1710         hw_info = &xgifb_info->hw_info;
1711         xgifb_info->fb_info = fb_info;
1712         xgifb_info->chip_id = pdev->device;
1713         pci_read_config_byte(pdev,
1714                              PCI_REVISION_ID,
1715                              &xgifb_info->revision_id);
1716         hw_info->jChipRevision = xgifb_info->revision_id;
1717
1718         xgifb_info->pcibus = pdev->bus->number;
1719         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1720         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1721         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1722         xgifb_info->subsysdevice = pdev->subsystem_device;
1723
1724         video_size_max = pci_resource_len(pdev, 0);
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         } else if (xgifb_info->video_size > video_size_max) {
1786                 xgifb_info->video_size = video_size_max;
1787         }
1788
1789         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1790         xgifb_reg_or(XGISR,
1791                      IND_SIS_PCI_ADDRESS_SET,
1792                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1793         /* Enable 2D accelerator engine */
1794         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1795
1796         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1797
1798         if (!request_mem_region(xgifb_info->video_base,
1799                                 xgifb_info->video_size,
1800                                 "XGIfb FB")) {
1801                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1802                        xgifb_info->video_size);
1803                 dev_err(&pdev->dev,
1804                         "Fatal error: Unable to reserve frame buffer memory. "
1805                         "Is there another framebuffer driver active?\n");
1806                 ret = -ENODEV;
1807                 goto error_disable;
1808         }
1809
1810         if (!request_mem_region(xgifb_info->mmio_base,
1811                                 xgifb_info->mmio_size,
1812                                 "XGIfb MMIO")) {
1813                 dev_err(&pdev->dev,
1814                         "Fatal error: Unable to reserve MMIO region\n");
1815                 ret = -ENODEV;
1816                 goto error_0;
1817         }
1818
1819         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1820         ioremap(xgifb_info->video_base, xgifb_info->video_size);
1821         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1822                                             xgifb_info->mmio_size);
1823
1824         dev_info(&pdev->dev,
1825                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1826                  (u64) xgifb_info->video_base,
1827                  xgifb_info->video_vbase,
1828                  xgifb_info->video_size / 1024);
1829
1830         dev_info(&pdev->dev,
1831                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1832                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1833                  xgifb_info->mmio_size / 1024);
1834
1835         pci_set_drvdata(pdev, xgifb_info);
1836         if (!XGIInitNew(pdev))
1837                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1838
1839         xgifb_info->mtrr = (unsigned int) 0;
1840
1841         xgifb_info->hasVB = HASVB_NONE;
1842         if ((xgifb_info->chip == XG20) ||
1843             (xgifb_info->chip == XG27)) {
1844                 xgifb_info->hasVB = HASVB_NONE;
1845         } else if (xgifb_info->chip == XG21) {
1846                 CR38 = xgifb_reg_get(XGICR, 0x38);
1847                 if ((CR38&0xE0) == 0xC0)
1848                         xgifb_info->display2 = XGIFB_DISP_LCD;
1849                 else if ((CR38&0xE0) == 0x60)
1850                         xgifb_info->hasVB = HASVB_CHRONTEL;
1851                 else
1852                         xgifb_info->hasVB = HASVB_NONE;
1853         } else {
1854                 XGIfb_get_VB_type(xgifb_info);
1855         }
1856
1857         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1858
1859         hw_info->ulExternalChip = 0;
1860
1861         switch (xgifb_info->hasVB) {
1862         case HASVB_301:
1863                 reg = xgifb_reg_get(XGIPART4, 0x01);
1864                 if (reg >= 0xE0) {
1865                         hw_info->ujVBChipID = VB_CHIP_302LV;
1866                         dev_info(&pdev->dev,
1867                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1868                                  reg);
1869                 } else if (reg >= 0xD0) {
1870                         hw_info->ujVBChipID = VB_CHIP_301LV;
1871                         dev_info(&pdev->dev,
1872                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1873                                  reg);
1874                 } else {
1875                         hw_info->ujVBChipID = VB_CHIP_301;
1876                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1877                 }
1878                 break;
1879         case HASVB_302:
1880                 reg = xgifb_reg_get(XGIPART4, 0x01);
1881                 if (reg >= 0xE0) {
1882                         hw_info->ujVBChipID = VB_CHIP_302LV;
1883                         dev_info(&pdev->dev,
1884                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1885                                  reg);
1886                 } else if (reg >= 0xD0) {
1887                         hw_info->ujVBChipID = VB_CHIP_301LV;
1888                         dev_info(&pdev->dev,
1889                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1890                                  reg);
1891                 } else if (reg >= 0xB0) {
1892                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1893
1894                         hw_info->ujVBChipID = VB_CHIP_302B;
1895
1896                 } else {
1897                         hw_info->ujVBChipID = VB_CHIP_302;
1898                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1899                 }
1900                 break;
1901         case HASVB_LVDS:
1902                 hw_info->ulExternalChip = 0x1;
1903                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1904                 break;
1905         case HASVB_TRUMPION:
1906                 hw_info->ulExternalChip = 0x2;
1907                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1908                 break;
1909         case HASVB_CHRONTEL:
1910                 hw_info->ulExternalChip = 0x4;
1911                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1912                 break;
1913         case HASVB_LVDS_CHRONTEL:
1914                 hw_info->ulExternalChip = 0x5;
1915                 dev_info(&pdev->dev,
1916                          "LVDS transmitter and Chrontel TV encoder detected\n");
1917                 break;
1918         default:
1919                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1920                 break;
1921         }
1922
1923         if (xgifb_info->hasVB != HASVB_NONE)
1924                 XGIfb_detect_VB(xgifb_info);
1925         else if (xgifb_info->chip != XG21)
1926                 xgifb_info->display2 = XGIFB_DISP_NONE;
1927
1928         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1929                 if (!enable_dstn) {
1930                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1931                         reg &= 0x0f;
1932                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1933                 }
1934         }
1935
1936         xgifb_info->mode_idx = -1;
1937
1938         if (mode)
1939                 XGIfb_search_mode(xgifb_info, mode);
1940         else if (vesa != -1)
1941                 XGIfb_search_vesamode(xgifb_info, vesa);
1942
1943         if (xgifb_info->mode_idx >= 0)
1944                 xgifb_info->mode_idx =
1945                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1946
1947         if (xgifb_info->mode_idx < 0) {
1948                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1949                     xgifb_info->chip == XG21)
1950                         xgifb_info->mode_idx =
1951                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1952                 else
1953                         xgifb_info->mode_idx = DEFAULT_MODE;
1954         }
1955
1956         if (xgifb_info->mode_idx < 0) {
1957                 dev_err(&pdev->dev, "No supported video mode found\n");
1958                 goto error_1;
1959         }
1960
1961         /* set default refresh rate */
1962         xgifb_info->refresh_rate = refresh_rate;
1963         if (xgifb_info->refresh_rate == 0)
1964                 xgifb_info->refresh_rate = 60;
1965         if (XGIfb_search_refresh_rate(xgifb_info,
1966                         xgifb_info->refresh_rate) == 0) {
1967                 xgifb_info->rate_idx = 1;
1968                 xgifb_info->refresh_rate = 60;
1969         }
1970
1971         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1972         xgifb_info->video_vwidth =
1973                 xgifb_info->video_width =
1974                         XGIbios_mode[xgifb_info->mode_idx].xres;
1975         xgifb_info->video_vheight =
1976                 xgifb_info->video_height =
1977                         XGIbios_mode[xgifb_info->mode_idx].yres;
1978         xgifb_info->org_x = xgifb_info->org_y = 0;
1979         xgifb_info->video_linelength =
1980                 xgifb_info->video_width *
1981                 (xgifb_info->video_bpp >> 3);
1982         switch (xgifb_info->video_bpp) {
1983         case 8:
1984                 xgifb_info->DstColor = 0x0000;
1985                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1986                 xgifb_info->video_cmap_len = 256;
1987                 break;
1988         case 16:
1989                 xgifb_info->DstColor = 0x8000;
1990                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1991                 xgifb_info->video_cmap_len = 16;
1992                 break;
1993         case 32:
1994                 xgifb_info->DstColor = 0xC000;
1995                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1996                 xgifb_info->video_cmap_len = 16;
1997                 break;
1998         default:
1999                 xgifb_info->video_cmap_len = 16;
2000                 pr_info("Unsupported depth %d\n",
2001                        xgifb_info->video_bpp);
2002                 break;
2003         }
2004
2005         pr_info("Default mode is %dx%dx%d (%dHz)\n",
2006                xgifb_info->video_width,
2007                xgifb_info->video_height,
2008                xgifb_info->video_bpp,
2009                xgifb_info->refresh_rate);
2010
2011         fb_info->var.red.length         = 8;
2012         fb_info->var.green.length       = 8;
2013         fb_info->var.blue.length        = 8;
2014         fb_info->var.activate           = FB_ACTIVATE_NOW;
2015         fb_info->var.height             = -1;
2016         fb_info->var.width              = -1;
2017         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
2018         fb_info->var.xres               = xgifb_info->video_width;
2019         fb_info->var.xres_virtual       = xgifb_info->video_width;
2020         fb_info->var.yres               = xgifb_info->video_height;
2021         fb_info->var.yres_virtual       = xgifb_info->video_height;
2022         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
2023
2024         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
2025
2026         fb_info->var.pixclock = (u32) (1000000000 /
2027                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
2028                                 hw_info,
2029                                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2030                                 xgifb_info->rate_idx));
2031
2032         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
2033                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2034                 xgifb_info->rate_idx,
2035                 &fb_info->var.left_margin,
2036                 &fb_info->var.right_margin,
2037                 &fb_info->var.upper_margin,
2038                 &fb_info->var.lower_margin,
2039                 &fb_info->var.hsync_len,
2040                 &fb_info->var.vsync_len,
2041                 &fb_info->var.sync,
2042                 &fb_info->var.vmode)) {
2043
2044                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2045                     FB_VMODE_INTERLACED) {
2046                         fb_info->var.yres <<= 1;
2047                         fb_info->var.yres_virtual <<= 1;
2048                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2049                            FB_VMODE_DOUBLE) {
2050                         fb_info->var.pixclock >>= 1;
2051                         fb_info->var.yres >>= 1;
2052                         fb_info->var.yres_virtual >>= 1;
2053                 }
2054
2055         }
2056
2057         fb_info->flags = FBINFO_FLAG_DEFAULT;
2058         fb_info->screen_base = xgifb_info->video_vbase;
2059         fb_info->fbops = &XGIfb_ops;
2060         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2061         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2062
2063         fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2064
2065 #ifdef CONFIG_MTRR
2066         xgifb_info->mtrr = mtrr_add(xgifb_info->video_base,
2067                 xgifb_info->video_size, MTRR_TYPE_WRCOMB, 1);
2068         if (xgifb_info->mtrr >= 0)
2069                 dev_info(&pdev->dev, "Added MTRR\n");
2070 #endif
2071
2072         if (register_framebuffer(fb_info) < 0) {
2073                 ret = -EINVAL;
2074                 goto error_mtrr;
2075         }
2076
2077         dumpVGAReg();
2078
2079         return 0;
2080
2081 error_mtrr:
2082 #ifdef CONFIG_MTRR
2083         if (xgifb_info->mtrr >= 0)
2084                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2085                         xgifb_info->video_size);
2086 #endif /* CONFIG_MTRR */
2087 error_1:
2088         iounmap(xgifb_info->mmio_vbase);
2089         iounmap(xgifb_info->video_vbase);
2090         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2091 error_0:
2092         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2093 error_disable:
2094         pci_disable_device(pdev);
2095 error:
2096         framebuffer_release(fb_info);
2097         return ret;
2098 }
2099
2100 /*****************************************************/
2101 /*                PCI DEVICE HANDLING                */
2102 /*****************************************************/
2103
2104 static void __devexit xgifb_remove(struct pci_dev *pdev)
2105 {
2106         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2107         struct fb_info *fb_info = xgifb_info->fb_info;
2108
2109         unregister_framebuffer(fb_info);
2110 #ifdef CONFIG_MTRR
2111         if (xgifb_info->mtrr >= 0)
2112                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2113                         xgifb_info->video_size);
2114 #endif /* CONFIG_MTRR */
2115         iounmap(xgifb_info->mmio_vbase);
2116         iounmap(xgifb_info->video_vbase);
2117         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2118         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2119         pci_disable_device(pdev);
2120         framebuffer_release(fb_info);
2121         pci_set_drvdata(pdev, NULL);
2122 }
2123
2124 static struct pci_driver xgifb_driver = {
2125         .name = "xgifb",
2126         .id_table = xgifb_pci_table,
2127         .probe = xgifb_probe,
2128         .remove = __devexit_p(xgifb_remove)
2129 };
2130
2131
2132
2133 /*****************************************************/
2134 /*                      MODULE                       */
2135 /*****************************************************/
2136
2137 module_param(mode, charp, 0);
2138 MODULE_PARM_DESC(mode,
2139         "Selects the desired default display mode in the format XxYxDepth "
2140         "(eg. 1024x768x16).");
2141
2142 module_param(forcecrt2type, charp, 0);
2143 MODULE_PARM_DESC(forcecrt2type,
2144         "Force the second display output type. Possible values are NONE, "
2145         "LCD, TV, VGA, SVIDEO or COMPOSITE.");
2146
2147 module_param(vesa, int, 0);
2148 MODULE_PARM_DESC(vesa,
2149         "Selects the desired default display mode by VESA mode number "
2150         "(eg. 0x117).");
2151
2152 module_param(filter, int, 0);
2153 MODULE_PARM_DESC(filter,
2154         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). "
2155         "Possible values 0-7. Default: [no filter]).");
2156
2157 static int __init xgifb_init(void)
2158 {
2159         char *option = NULL;
2160
2161         if (forcecrt2type != NULL)
2162                 XGIfb_search_crt2type(forcecrt2type);
2163         if (fb_get_options("xgifb", &option))
2164                 return -ENODEV;
2165         XGIfb_setup(option);
2166
2167         return pci_register_driver(&xgifb_driver);
2168 }
2169
2170 static void __exit xgifb_remove_module(void)
2171 {
2172         pci_unregister_driver(&xgifb_driver);
2173         pr_debug("Module unloaded\n");
2174 }
2175
2176 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2177 MODULE_LICENSE("GPL");
2178 MODULE_AUTHOR("XGITECH , Others");
2179 module_init(xgifb_init);
2180 module_exit(xgifb_remove_module);