Pileus Git - ~andy/linux/blob - drivers/staging/xgifb/XGI_main_26.c

   1 /*
   2  * XG20, XG21, XG40, XG42 frame buffer device
   3  * for Linux kernels  2.5.x, 2.6.x
   4  * Base on TW's sis fbdev code.
   5  */
   6
   7 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
   8
   9 #include <linux/sizes.h>
  10 #include <linux/module.h>
  11
  12 #ifdef CONFIG_MTRR
  13 #include <asm/mtrr.h>
  14 #endif
  15
  16 #include "XGI_main.h"
  17 #include "vb_init.h"
  18 #include "vb_util.h"
  19 #include "vb_setmode.h"
  20
  21 #define Index_CR_GPIO_Reg1 0x48
  22 #define Index_CR_GPIO_Reg3 0x4a
  23
  24 #define GPIOG_EN    (1<<6)
  25 #define GPIOG_READ  (1<<1)
  26
  27 static char *forcecrt2type;
  28 static char *mode;
  29 static int vesa = -1;
  30 static unsigned int refresh_rate;
  31
  32 /* -------------------- Macro definitions ---------------------------- */
  33
  34 #ifdef DEBUG
  35 static void dumpVGAReg(void)
  36 {
  37         u8 i, reg;
  38
  39         xgifb_reg_set(XGISR, 0x05, 0x86);
  40
  41         for (i = 0; i < 0x4f; i++) {
  42                 reg = xgifb_reg_get(XGISR, i);
  43                 pr_debug("o 3c4 %x\n", i);
  44                 pr_debug("i 3c5 => %x\n", reg);
  45         }
  46
  47         for (i = 0; i < 0xF0; i++) {
  48                 reg = xgifb_reg_get(XGICR, i);
  49                 pr_debug("o 3d4 %x\n", i);
  50                 pr_debug("i 3d5 => %x\n", reg);
  51         }
  52 }
  53 #else
  54 static inline void dumpVGAReg(void)
  55 {
  56 }
  57 #endif
  58
  59 /* --------------- Hardware Access Routines -------------------------- */
  60
  61 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
  62                 struct xgi_hw_device_info *HwDeviceExtension,
  63                 unsigned char modeno, unsigned char rateindex)
  64 {
  65         unsigned short ModeNo = modeno;
  66         unsigned short ModeIdIndex = 0, ClockIndex = 0;
  67         unsigned short RefreshRateTableIndex = 0;
  68         int Clock;
  69         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  70
  71         XGI_SearchModeID(ModeNo, &ModeIdIndex, XGI_Pr);
  72
  73         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  74                         ModeIdIndex, XGI_Pr);
  75
  76         ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
  77
  78         Clock = XGI_VCLKData[ClockIndex].CLOCK * 1000;
  79
  80         return Clock;
  81 }
  82
  83 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
  84                 struct xgi_hw_device_info *HwDeviceExtension,
  85                 unsigned char modeno, unsigned char rateindex,
  86                 u32 *left_margin, u32 *right_margin, u32 *upper_margin,
  87                 u32 *lower_margin, u32 *hsync_len, u32 *vsync_len, u32 *sync,
  88                 u32 *vmode)
  89 {
  90         unsigned short ModeNo = modeno;
  91         unsigned short ModeIdIndex, index = 0;
  92         unsigned short RefreshRateTableIndex = 0;
  93
  94         unsigned short VRE, VBE, VRS, VBS, VDE, VT;
  95         unsigned short HRE, HBE, HRS, HBS, HDE, HT;
  96         unsigned char sr_data, cr_data, cr_data2;
  97         unsigned long cr_data3;
  98         int A, B, C, D, E, F, temp, j;
  99         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
 100         if (!XGI_SearchModeID(ModeNo, &ModeIdIndex, XGI_Pr))
 101                 return 0;
 102         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 103                         ModeIdIndex, XGI_Pr);
 104         index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 105
 106         sr_data = XGI_CRT1Table[index].CR[5];
 107
 108         cr_data = XGI_CRT1Table[index].CR[0];
 109
 110         /* Horizontal total */
 111         HT = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x03) << 8);
 112         A = HT + 5;
 113
 114         HDE = (XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3) - 1;
 115         E = HDE + 1;
 116
 117         cr_data = XGI_CRT1Table[index].CR[3];
 118
 119         /* Horizontal retrace (=sync) start */
 120         HRS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0xC0) << 2);
 121         F = HRS - E - 3;
 122
 123         cr_data = XGI_CRT1Table[index].CR[1];
 124
 125         /* Horizontal blank start */
 126         HBS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x30) << 4);
 127
 128         sr_data = XGI_CRT1Table[index].CR[6];
 129
 130         cr_data = XGI_CRT1Table[index].CR[2];
 131
 132         cr_data2 = XGI_CRT1Table[index].CR[4];
 133
 134         /* Horizontal blank end */
 135         HBE = (cr_data & 0x1f) | ((unsigned short) (cr_data2 & 0x80) >> 2)
 136                         | ((unsigned short) (sr_data & 0x03) << 6);
 137
 138         /* Horizontal retrace (=sync) end */
 139         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 140
 141         temp = HBE - ((E - 1) & 255);
 142         B = (temp > 0) ? temp : (temp + 256);
 143
 144         temp = HRE - ((E + F + 3) & 63);
 145         C = (temp > 0) ? temp : (temp + 64);
 146
 147         D = B - F - C;
 148
 149         *left_margin = D * 8;
 150         *right_margin = F * 8;
 151         *hsync_len = C * 8;
 152
 153         sr_data = XGI_CRT1Table[index].CR[14];
 154
 155         cr_data = XGI_CRT1Table[index].CR[8];
 156
 157         cr_data2 = XGI_CRT1Table[index].CR[9];
 158
 159         /* Vertical total */
 160         VT = (cr_data & 0xFF) | ((unsigned short) (cr_data2 & 0x01) << 8)
 161                         | ((unsigned short) (cr_data2 & 0x20) << 4)
 162                         | ((unsigned short) (sr_data & 0x01) << 10);
 163         A = VT + 2;
 164
 165         VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes - 1;
 166         E = VDE + 1;
 167
 168         cr_data = XGI_CRT1Table[index].CR[10];
 169
 170         /* Vertical retrace (=sync) start */
 171         VRS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x04) << 6)
 172                         | ((unsigned short) (cr_data2 & 0x80) << 2)
 173                         | ((unsigned short) (sr_data & 0x08) << 7);
 174         F = VRS + 1 - E;
 175
 176         cr_data = XGI_CRT1Table[index].CR[12];
 177
 178         cr_data3 = (XGI_CRT1Table[index].CR[14] & 0x80) << 5;
 179
 180         /* Vertical blank start */
 181         VBS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x08) << 5)
 182                         | ((unsigned short) (cr_data3 & 0x20) << 4)
 183                         | ((unsigned short) (sr_data & 0x04) << 8);
 184
 185         cr_data = XGI_CRT1Table[index].CR[13];
 186
 187         /* Vertical blank end */
 188         VBE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x10) << 4);
 189         temp = VBE - ((E - 1) & 511);
 190         B = (temp > 0) ? temp : (temp + 512);
 191
 192         cr_data = XGI_CRT1Table[index].CR[11];
 193
 194         /* Vertical retrace (=sync) end */
 195         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 196         temp = VRE - ((E + F - 1) & 31);
 197         C = (temp > 0) ? temp : (temp + 32);
 198
 199         D = B - F - C;
 200
 201         *upper_margin = D;
 202         *lower_margin = F;
 203         *vsync_len = C;
 204
 205         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 206                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 207         else
 208                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 209
 210         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 211                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 212         else
 213                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 214
 215         *vmode = FB_VMODE_NONINTERLACED;
 216         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080)
 217                 *vmode = FB_VMODE_INTERLACED;
 218         else {
 219                 j = 0;
 220                 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
 221                         if (XGI330_EModeIDTable[j].Ext_ModeID ==
 222                             XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
 223                                 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
 224                                     DoubleScanMode) {
 225                                         *vmode = FB_VMODE_DOUBLE;
 226                                 }
 227                                 break;
 228                         }
 229                         j++;
 230                 }
 231         }
 232
 233         return 1;
 234 }
 235
 236 static void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 237 {
 238         XGI_Pr->P3c4 = BaseAddr + 0x14;
 239         XGI_Pr->P3d4 = BaseAddr + 0x24;
 240         XGI_Pr->P3c0 = BaseAddr + 0x10;
 241         XGI_Pr->P3ce = BaseAddr + 0x1e;
 242         XGI_Pr->P3c2 = BaseAddr + 0x12;
 243         XGI_Pr->P3ca = BaseAddr + 0x1a;
 244         XGI_Pr->P3c6 = BaseAddr + 0x16;
 245         XGI_Pr->P3c7 = BaseAddr + 0x17;
 246         XGI_Pr->P3c8 = BaseAddr + 0x18;
 247         XGI_Pr->P3c9 = BaseAddr + 0x19;
 248         XGI_Pr->P3da = BaseAddr + 0x2A;
 249         /* Digital video interface registers (LCD) */
 250         XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
 251         /* 301 TV Encoder registers */
 252         XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
 253         /* 301 Macrovision registers */
 254         XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
 255         /* 301 VGA2 (and LCD) registers */
 256         XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
 257         /* 301 palette address port registers */
 258         XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
 259
 260 }
 261
 262 /* ------------------ Internal helper routines ----------------- */
 263
 264 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 265 {
 266         int i = 0;
 267
 268         while ((XGIbios_mode[i].mode_no != 0)
 269                && (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
 270                 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE)
 271                     && (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE)
 272                     && (XGIbios_mode[i].bpp == 8)) {
 273                         return i;
 274                 }
 275                 i++;
 276         }
 277
 278         return -1;
 279 }
 280
 281 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 282                               const char *name)
 283 {
 284         unsigned int xres;
 285         unsigned int yres;
 286         unsigned int bpp;
 287         int i;
 288
 289         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 290                 goto invalid_mode;
 291
 292         if (bpp == 24)
 293                 bpp = 32; /* That's for people who mix up color and fb depth. */
 294
 295         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 296                 if (XGIbios_mode[i].xres == xres &&
 297                     XGIbios_mode[i].yres == yres &&
 298                     XGIbios_mode[i].bpp == bpp) {
 299                         xgifb_info->mode_idx = i;
 300                         return;
 301                 }
 302 invalid_mode:
 303         pr_info("Invalid mode '%s'\n", name);
 304 }
 305
 306 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 307                                   unsigned int vesamode)
 308 {
 309         int i = 0;
 310
 311         if (vesamode == 0)
 312                 goto invalid;
 313
 314         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 315
 316         while (XGIbios_mode[i].mode_no != 0) {
 317                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 318                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 319                         xgifb_info->mode_idx = i;
 320                         return;
 321                 }
 322                 i++;
 323         }
 324
 325 invalid:
 326         pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 327 }
 328
 329 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 330 {
 331         u16 xres, yres;
 332         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 333         unsigned long required_mem;
 334
 335         if (xgifb_info->chip == XG21) {
 336                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 337                         xres = xgifb_info->lvds_data.LVDSHDE;
 338                         yres = xgifb_info->lvds_data.LVDSVDE;
 339                         if (XGIbios_mode[myindex].xres > xres)
 340                                 return -1;
 341                         if (XGIbios_mode[myindex].yres > yres)
 342                                 return -1;
 343                         if ((XGIbios_mode[myindex].xres < xres) &&
 344                             (XGIbios_mode[myindex].yres < yres)) {
 345                                 if (XGIbios_mode[myindex].bpp > 8)
 346                                         return -1;
 347                         }
 348
 349                 }
 350                 goto check_memory;
 351
 352         }
 353
 354         /* FIXME: for now, all is valid on XG27 */
 355         if (xgifb_info->chip == XG27)
 356                 goto check_memory;
 357
 358         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 359                 return -1;
 360
 361         switch (xgifb_info->display2) {
 362         case XGIFB_DISP_LCD:
 363                 switch (hw_info->ulCRT2LCDType) {
 364                 case LCD_640x480:
 365                         xres = 640;
 366                         yres = 480;
 367                         break;
 368                 case LCD_800x600:
 369                         xres = 800;
 370                         yres = 600;
 371                         break;
 372                 case LCD_1024x600:
 373                         xres = 1024;
 374                         yres = 600;
 375                         break;
 376                 case LCD_1024x768:
 377                         xres = 1024;
 378                         yres = 768;
 379                         break;
 380                 case LCD_1152x768:
 381                         xres = 1152;
 382                         yres = 768;
 383                         break;
 384                 case LCD_1280x960:
 385                         xres = 1280;
 386                         yres = 960;
 387                         break;
 388                 case LCD_1280x768:
 389                         xres = 1280;
 390                         yres = 768;
 391                         break;
 392                 case LCD_1280x1024:
 393                         xres = 1280;
 394                         yres = 1024;
 395                         break;
 396                 case LCD_1400x1050:
 397                         xres = 1400;
 398                         yres = 1050;
 399                         break;
 400                 case LCD_1600x1200:
 401                         xres = 1600;
 402                         yres = 1200;
 403                         break;
 404                 default:
 405                         xres = 0;
 406                         yres = 0;
 407                         break;
 408                 }
 409                 if (XGIbios_mode[myindex].xres > xres)
 410                         return -1;
 411                 if (XGIbios_mode[myindex].yres > yres)
 412                         return -1;
 413                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 414                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 415                         switch (XGIbios_mode[myindex].xres) {
 416                         case 512:
 417                                 if (XGIbios_mode[myindex].yres != 512)
 418                                         return -1;
 419                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 420                                         return -1;
 421                                 break;
 422                         case 640:
 423                                 if ((XGIbios_mode[myindex].yres != 400)
 424                                                 && (XGIbios_mode[myindex].yres
 425                                                                 != 480))
 426                                         return -1;
 427                                 break;
 428                         case 800:
 429                                 if (XGIbios_mode[myindex].yres != 600)
 430                                         return -1;
 431                                 break;
 432                         case 1024:
 433                                 if ((XGIbios_mode[myindex].yres != 600) &&
 434                                     (XGIbios_mode[myindex].yres != 768))
 435                                         return -1;
 436                                 if ((XGIbios_mode[myindex].yres == 600) &&
 437                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 438                                         return -1;
 439                                 break;
 440                         case 1152:
 441                                 if ((XGIbios_mode[myindex].yres) != 768)
 442                                         return -1;
 443                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 444                                         return -1;
 445                                 break;
 446                         case 1280:
 447                                 if ((XGIbios_mode[myindex].yres != 768) &&
 448                                     (XGIbios_mode[myindex].yres != 1024))
 449                                         return -1;
 450                                 if ((XGIbios_mode[myindex].yres == 768) &&
 451                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 452                                         return -1;
 453                                 break;
 454                         case 1400:
 455                                 if (XGIbios_mode[myindex].yres != 1050)
 456                                         return -1;
 457                                 break;
 458                         case 1600:
 459                                 if (XGIbios_mode[myindex].yres != 1200)
 460                                         return -1;
 461                                 break;
 462                         default:
 463                                 return -1;
 464                         }
 465                 } else {
 466                         switch (XGIbios_mode[myindex].xres) {
 467                         case 512:
 468                                 if (XGIbios_mode[myindex].yres != 512)
 469                                         return -1;
 470                                 break;
 471                         case 640:
 472                                 if ((XGIbios_mode[myindex].yres != 400) &&
 473                                     (XGIbios_mode[myindex].yres != 480))
 474                                         return -1;
 475                                 break;
 476                         case 800:
 477                                 if (XGIbios_mode[myindex].yres != 600)
 478                                         return -1;
 479                                 break;
 480                         case 1024:
 481                                 if (XGIbios_mode[myindex].yres != 768)
 482                                         return -1;
 483                                 break;
 484                         case 1280:
 485                                 if ((XGIbios_mode[myindex].yres != 960) &&
 486                                     (XGIbios_mode[myindex].yres != 1024))
 487                                         return -1;
 488                                 if (XGIbios_mode[myindex].yres == 960) {
 489                                         if (hw_info->ulCRT2LCDType ==
 490                                             LCD_1400x1050)
 491                                                 return -1;
 492                                 }
 493                                 break;
 494                         case 1400:
 495                                 if (XGIbios_mode[myindex].yres != 1050)
 496                                         return -1;
 497                                 break;
 498                         case 1600:
 499                                 if (XGIbios_mode[myindex].yres != 1200)
 500                                         return -1;
 501                                 break;
 502                         default:
 503                                 return -1;
 504                         }
 505                 }
 506                 break;
 507         case XGIFB_DISP_TV:
 508                 switch (XGIbios_mode[myindex].xres) {
 509                 case 512:
 510                 case 640:
 511                 case 800:
 512                         break;
 513                 case 720:
 514                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 515                                 if (XGIbios_mode[myindex].yres != 480)
 516                                         return -1;
 517                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 518                                 if (XGIbios_mode[myindex].yres != 576)
 519                                         return -1;
 520                         }
 521                         /* LVDS/CHRONTEL does not support 720 */
 522                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 523                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 524                                 return -1;
 525                         }
 526                         break;
 527                 case 1024:
 528                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 529                                 if (XGIbios_mode[myindex].bpp == 32)
 530                                         return -1;
 531                         }
 532                         break;
 533                 default:
 534                         return -1;
 535                 }
 536                 break;
 537         case XGIFB_DISP_CRT:
 538                 if (XGIbios_mode[myindex].xres > 1280)
 539                         return -1;
 540                 break;
 541         case XGIFB_DISP_NONE:
 542                 break;
 543         }
 544
 545 check_memory:
 546         required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
 547                        XGIbios_mode[myindex].bpp / 8;
 548         if (required_mem > xgifb_info->video_size)
 549                 return -1;
 550         return myindex;
 551
 552 }
 553
 554 static void XGIfb_search_crt2type(const char *name)
 555 {
 556         int i = 0;
 557
 558         if (name == NULL)
 559                 return;
 560
 561         while (XGI_crt2type[i].type_no != -1) {
 562                 if (!strcmp(name, XGI_crt2type[i].name)) {
 563                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 564                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 565                         break;
 566                 }
 567                 i++;
 568         }
 569         if (XGIfb_crt2type < 0)
 570                 pr_info("Invalid CRT2 type: %s\n", name);
 571 }
 572
 573 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 574                                     unsigned int rate)
 575 {
 576         u16 xres, yres;
 577         int i = 0;
 578
 579         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 580         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 581
 582         xgifb_info->rate_idx = 0;
 583         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 584                 if ((XGIfb_vrate[i].xres == xres) &&
 585                     (XGIfb_vrate[i].yres == yres)) {
 586                         if (XGIfb_vrate[i].refresh == rate) {
 587                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 588                                 break;
 589                         } else if (XGIfb_vrate[i].refresh > rate) {
 590                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 591                                         pr_debug("Adjusting rate from %d up to %d\n",
 592                                                  rate, XGIfb_vrate[i].refresh);
 593                                         xgifb_info->rate_idx =
 594                                                 XGIfb_vrate[i].idx;
 595                                         xgifb_info->refresh_rate =
 596                                                 XGIfb_vrate[i].refresh;
 597                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 598                                                 <= 2) && (XGIfb_vrate[i].idx
 599                                                 != 1)) {
 600                                         pr_debug("Adjusting rate from %d down to %d\n",
 601                                                  rate,
 602                                                  XGIfb_vrate[i-1].refresh);
 603                                         xgifb_info->rate_idx =
 604                                                 XGIfb_vrate[i - 1].idx;
 605                                         xgifb_info->refresh_rate =
 606                                                 XGIfb_vrate[i - 1].refresh;
 607                                 }
 608                                 break;
 609                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 610                                 pr_debug("Adjusting rate from %d down to %d\n",
 611                                          rate, XGIfb_vrate[i].refresh);
 612                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 613                                 break;
 614                         }
 615                 }
 616                 i++;
 617         }
 618         if (xgifb_info->rate_idx > 0) {
 619                 return xgifb_info->rate_idx;
 620         } else {
 621                 pr_info("Unsupported rate %d for %dx%d\n",
 622                        rate, xres, yres);
 623                 return 0;
 624         }
 625 }
 626
 627 static void XGIfb_search_tvstd(const char *name)
 628 {
 629         int i = 0;
 630
 631         if (name == NULL)
 632                 return;
 633
 634         while (XGI_tvtype[i].type_no != -1) {
 635                 if (!strcmp(name, XGI_tvtype[i].name)) {
 636                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 637                         break;
 638                 }
 639                 i++;
 640         }
 641 }
 642
 643 /* ----------- FBDev related routines for all series ----------- */
 644
 645 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 646                              struct fb_var_screeninfo *var)
 647 {
 648         switch (var->bits_per_pixel) {
 649         case 8:
 650                 var->red.offset = var->green.offset = var->blue.offset = 0;
 651                 var->red.length = var->green.length = var->blue.length = 6;
 652                 xgifb_info->video_cmap_len = 256;
 653                 break;
 654         case 16:
 655                 var->red.offset = 11;
 656                 var->red.length = 5;
 657                 var->green.offset = 5;
 658                 var->green.length = 6;
 659                 var->blue.offset = 0;
 660                 var->blue.length = 5;
 661                 var->transp.offset = 0;
 662                 var->transp.length = 0;
 663                 xgifb_info->video_cmap_len = 16;
 664                 break;
 665         case 32:
 666                 var->red.offset = 16;
 667                 var->red.length = 8;
 668                 var->green.offset = 8;
 669                 var->green.length = 8;
 670                 var->blue.offset = 0;
 671                 var->blue.length = 8;
 672                 var->transp.offset = 24;
 673                 var->transp.length = 8;
 674                 xgifb_info->video_cmap_len = 16;
 675                 break;
 676         }
 677 }
 678
 679 /* --------------------- SetMode routines ------------------------- */
 680
 681 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 682 {
 683         u8 cr30 = 0, cr31 = 0;
 684
 685         cr31 = xgifb_reg_get(XGICR, 0x31);
 686         cr31 &= ~0x60;
 687
 688         switch (xgifb_info->display2) {
 689         case XGIFB_DISP_CRT:
 690                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 691                 cr31 |= SIS_DRIVER_MODE;
 692                 break;
 693         case XGIFB_DISP_LCD:
 694                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 695                 cr31 |= SIS_DRIVER_MODE;
 696                 break;
 697         case XGIFB_DISP_TV:
 698                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 699                         cr30 = (SIS_VB_OUTPUT_HIVISION
 700                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 701                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 702                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 703                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 704                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 705                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 706                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 707                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 708                         cr30 = (SIS_VB_OUTPUT_SCART
 709                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 710                 cr31 |= SIS_DRIVER_MODE;
 711
 712                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 713                         cr31 |= 0x01;
 714                 else
 715                         cr31 &= ~0x01;
 716                 break;
 717         default: /* disable CRT2 */
 718                 cr30 = 0x00;
 719                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 720         }
 721
 722         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 723         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 724         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 725                                                 (xgifb_info->rate_idx & 0x0F));
 726 }
 727
 728 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 729 {
 730         u8 reg;
 731         unsigned char doit = 1;
 732
 733         if (xgifb_info->video_bpp == 8) {
 734                 /*
 735                  * We can't switch off CRT1 on LVDS/Chrontel
 736                  * in 8bpp Modes
 737                  */
 738                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 739                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 740                         doit = 0;
 741                 }
 742                 /*
 743                  * We can't switch off CRT1 on 301B-DH
 744                  * in 8bpp Modes if using LCD
 745                  */
 746                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 747                         doit = 0;
 748         }
 749
 750         /* We can't switch off CRT1 if bridge is in slave mode */
 751         if (xgifb_info->hasVB != HASVB_NONE) {
 752                 reg = xgifb_reg_get(XGIPART1, 0x00);
 753
 754                 if ((reg & 0x50) == 0x10)
 755                         doit = 0;
 756
 757         } else {
 758                 XGIfb_crt1off = 0;
 759         }
 760
 761         reg = xgifb_reg_get(XGICR, 0x17);
 762         if ((XGIfb_crt1off) && (doit))
 763                 reg &= ~0x80;
 764         else
 765                 reg |= 0x80;
 766         xgifb_reg_set(XGICR, 0x17, reg);
 767
 768         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 769
 770         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 771             xgifb_info->hasVB == HASVB_301) {
 772
 773                 reg = xgifb_reg_get(XGIPART4, 0x01);
 774
 775                 if (reg < 0xB0) { /* Set filter for XGI301 */
 776                         int filter_tb;
 777
 778                         switch (xgifb_info->video_width) {
 779                         case 320:
 780                                 filter_tb = (xgifb_info->TV_type ==
 781                                              TVMODE_NTSC) ? 4 : 12;
 782                                 break;
 783                         case 640:
 784                                 filter_tb = (xgifb_info->TV_type ==
 785                                              TVMODE_NTSC) ? 5 : 13;
 786                                 break;
 787                         case 720:
 788                                 filter_tb = (xgifb_info->TV_type ==
 789                                              TVMODE_NTSC) ? 6 : 14;
 790                                 break;
 791                         case 800:
 792                                 filter_tb = (xgifb_info->TV_type ==
 793                                              TVMODE_NTSC) ? 7 : 15;
 794                                 break;
 795                         default:
 796                                 filter_tb = 0;
 797                                 filter = -1;
 798                                 break;
 799                         }
 800                         xgifb_reg_or(XGIPART1,
 801                                      SIS_CRT2_WENABLE_315,
 802                                      0x01);
 803
 804                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 805
 806                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 807
 808                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 809
 810                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 811
 812                                 } else if (xgifb_info->TV_plug
 813                                                 == TVPLUG_COMPOSITE) {
 814
 815                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 816
 817                                         switch (xgifb_info->video_width) {
 818                                         case 640:
 819                                                 xgifb_reg_set(XGIPART2,
 820                                                               0x35,
 821                                                               0xEB);
 822                                                 xgifb_reg_set(XGIPART2,
 823                                                               0x36,
 824                                                               0x04);
 825                                                 xgifb_reg_set(XGIPART2,
 826                                                               0x37,
 827                                                               0x25);
 828                                                 xgifb_reg_set(XGIPART2,
 829                                                               0x38,
 830                                                               0x18);
 831                                                 break;
 832                                         case 720:
 833                                                 xgifb_reg_set(XGIPART2,
 834                                                               0x35,
 835                                                               0xEE);
 836                                                 xgifb_reg_set(XGIPART2,
 837                                                               0x36,
 838                                                               0x0C);
 839                                                 xgifb_reg_set(XGIPART2,
 840                                                               0x37,
 841                                                               0x22);
 842                                                 xgifb_reg_set(XGIPART2,
 843                                                               0x38,
 844                                                               0x08);
 845                                                 break;
 846                                         case 800:
 847                                                 xgifb_reg_set(XGIPART2,
 848                                                               0x35,
 849                                                               0xEB);
 850                                                 xgifb_reg_set(XGIPART2,
 851                                                               0x36,
 852                                                               0x15);
 853                                                 xgifb_reg_set(XGIPART2,
 854                                                               0x37,
 855                                                               0x25);
 856                                                 xgifb_reg_set(XGIPART2,
 857                                                               0x38,
 858                                                               0xF6);
 859                                                 break;
 860                                         }
 861                                 }
 862
 863                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 864
 865                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 866
 867                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 868
 869                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 870
 871                                 } else if (xgifb_info->TV_plug
 872                                                 == TVPLUG_COMPOSITE) {
 873
 874                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 875
 876                                         switch (xgifb_info->video_width) {
 877                                         case 640:
 878                                                 xgifb_reg_set(XGIPART2,
 879                                                               0x35,
 880                                                               0xF1);
 881                                                 xgifb_reg_set(XGIPART2,
 882                                                               0x36,
 883                                                               0xF7);
 884                                                 xgifb_reg_set(XGIPART2,
 885                                                               0x37,
 886                                                               0x1F);
 887                                                 xgifb_reg_set(XGIPART2,
 888                                                               0x38,
 889                                                               0x32);
 890                                                 break;
 891                                         case 720:
 892                                                 xgifb_reg_set(XGIPART2,
 893                                                               0x35,
 894                                                               0xF3);
 895                                                 xgifb_reg_set(XGIPART2,
 896                                                               0x36,
 897                                                               0x00);
 898                                                 xgifb_reg_set(XGIPART2,
 899                                                               0x37,
 900                                                               0x1D);
 901                                                 xgifb_reg_set(XGIPART2,
 902                                                               0x38,
 903                                                               0x20);
 904                                                 break;
 905                                         case 800:
 906                                                 xgifb_reg_set(XGIPART2,
 907                                                               0x35,
 908                                                               0xFC);
 909                                                 xgifb_reg_set(XGIPART2,
 910                                                               0x36,
 911                                                               0xFB);
 912                                                 xgifb_reg_set(XGIPART2,
 913                                                               0x37,
 914                                                               0x14);
 915                                                 xgifb_reg_set(XGIPART2,
 916                                                               0x38,
 917                                                               0x2A);
 918                                                 break;
 919                                         }
 920                                 }
 921                         }
 922
 923                         if ((filter >= 0) && (filter <= 7)) {
 924                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 925                                          filter_tb, filter,
 926                                          4, XGI_TV_filter[filter_tb].
 927                                                    filter[filter]);
 928                                 xgifb_reg_set(
 929                                         XGIPART2,
 930                                         0x35,
 931                                         (XGI_TV_filter[filter_tb].
 932                                                 filter[filter][0]));
 933                                 xgifb_reg_set(
 934                                         XGIPART2,
 935                                         0x36,
 936                                         (XGI_TV_filter[filter_tb].
 937                                                 filter[filter][1]));
 938                                 xgifb_reg_set(
 939                                         XGIPART2,
 940                                         0x37,
 941                                         (XGI_TV_filter[filter_tb].
 942                                                 filter[filter][2]));
 943                                 xgifb_reg_set(
 944                                         XGIPART2,
 945                                         0x38,
 946                                         (XGI_TV_filter[filter_tb].
 947                                                 filter[filter][3]));
 948                         }
 949                 }
 950         }
 951 }
 952
 953 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 954                 struct fb_info *info)
 955 {
 956         struct xgifb_video_info *xgifb_info = info->par;
 957         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 958         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 959                         + var->hsync_len;
 960         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 961                         + var->vsync_len;
 962 #if defined(__powerpc__)
 963         u8 cr_data;
 964 #endif
 965         unsigned int drate = 0, hrate = 0;
 966         int found_mode = 0;
 967         int old_mode;
 968
 969         info->var.xres_virtual = var->xres_virtual;
 970         info->var.yres_virtual = var->yres_virtual;
 971         info->var.bits_per_pixel = var->bits_per_pixel;
 972
 973         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 974                 vtotal <<= 1;
 975         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 976                 vtotal <<= 2;
 977
 978         if (!htotal || !vtotal) {
 979                 pr_debug("Invalid 'var' information\n");
 980                 return -EINVAL;
 981         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 982                         var->pixclock, htotal, vtotal);
 983
 984         if (var->pixclock && htotal && vtotal) {
 985                 drate = 1000000000 / var->pixclock;
 986                 hrate = (drate * 1000) / htotal;
 987                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 988                                 / vtotal);
 989         } else {
 990                 xgifb_info->refresh_rate = 60;
 991         }
 992
 993         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 994                var->xres,
 995                var->yres,
 996                var->bits_per_pixel,
 997                xgifb_info->refresh_rate);
 998
 999         old_mode = xgifb_info->mode_idx;
1000         xgifb_info->mode_idx = 0;
1001
1002         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
1003                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
1004                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
1005                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
1006                     (XGIbios_mode[xgifb_info->mode_idx].bpp
1007                                                 == var->bits_per_pixel)) {
1008                         found_mode = 1;
1009                         break;
1010                 }
1011                 xgifb_info->mode_idx++;
1012         }
1013
1014         if (found_mode)
1015                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
1016                                                         xgifb_info->mode_idx);
1017         else
1018                 xgifb_info->mode_idx = -1;
1019
1020         if (xgifb_info->mode_idx < 0) {
1021                 pr_err("Mode %dx%dx%d not supported\n",
1022                        var->xres, var->yres, var->bits_per_pixel);
1023                 xgifb_info->mode_idx = old_mode;
1024                 return -EINVAL;
1025         }
1026
1027         if (XGIfb_search_refresh_rate(xgifb_info,
1028                                       xgifb_info->refresh_rate) == 0) {
1029                 xgifb_info->rate_idx = 1;
1030                 xgifb_info->refresh_rate = 60;
1031         }
1032
1033         if (isactive) {
1034
1035                 XGIfb_pre_setmode(xgifb_info);
1036                 if (XGISetModeNew(xgifb_info, hw_info,
1037                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1038                                         == 0) {
1039                         pr_err("Setting mode[0x%x] failed\n",
1040                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1041                         return -EINVAL;
1042                 }
1043                 info->fix.line_length = ((info->var.xres_virtual
1044                                 * info->var.bits_per_pixel) >> 6);
1045
1046                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1047
1048                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1049                 xgifb_reg_set(XGISR,
1050                               0x0E,
1051                               (info->fix.line_length & 0xff00) >> 8);
1052
1053                 XGIfb_post_setmode(xgifb_info);
1054
1055                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1056                          XGIbios_mode[xgifb_info->mode_idx].xres,
1057                          XGIbios_mode[xgifb_info->mode_idx].yres,
1058                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1059                          xgifb_info->refresh_rate);
1060
1061                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1062                 xgifb_info->video_vwidth = info->var.xres_virtual;
1063                 xgifb_info->video_width =
1064                         XGIbios_mode[xgifb_info->mode_idx].xres;
1065                 xgifb_info->video_vheight = info->var.yres_virtual;
1066                 xgifb_info->video_height =
1067                         XGIbios_mode[xgifb_info->mode_idx].yres;
1068                 xgifb_info->org_x = xgifb_info->org_y = 0;
1069                 xgifb_info->video_linelength = info->var.xres_virtual
1070                                 * (xgifb_info->video_bpp >> 3);
1071                 switch (xgifb_info->video_bpp) {
1072                 case 8:
1073                         xgifb_info->DstColor = 0x0000;
1074                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1075                         xgifb_info->video_cmap_len = 256;
1076 #if defined(__powerpc__)
1077                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1078                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1079 #endif
1080                         break;
1081                 case 16:
1082                         xgifb_info->DstColor = 0x8000;
1083                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1084 #if defined(__powerpc__)
1085                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1086                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1087 #endif
1088                         xgifb_info->video_cmap_len = 16;
1089                         break;
1090                 case 32:
1091                         xgifb_info->DstColor = 0xC000;
1092                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1093                         xgifb_info->video_cmap_len = 16;
1094 #if defined(__powerpc__)
1095                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1096                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1097 #endif
1098                         break;
1099                 default:
1100                         xgifb_info->video_cmap_len = 16;
1101                         pr_err("Unsupported depth %d\n",
1102                                xgifb_info->video_bpp);
1103                         break;
1104                 }
1105         }
1106         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1107
1108         dumpVGAReg();
1109         return 0;
1110 }
1111
1112 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1113 {
1114         struct xgifb_video_info *xgifb_info = info->par;
1115         unsigned int base;
1116
1117         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1118
1119         /* calculate base bpp dep. */
1120         switch (info->var.bits_per_pixel) {
1121         case 16:
1122                 base >>= 1;
1123                 break;
1124         case 32:
1125                 break;
1126         case 8:
1127         default:
1128                 base >>= 2;
1129                 break;
1130         }
1131
1132         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1133
1134         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1135         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1136         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1137         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1138         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1139
1140         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1141                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1142                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1143                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1144                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1145                 xgifb_reg_and_or(XGIPART1,
1146                                  0x02,
1147                                  0x7F,
1148                                  ((base >> 24) & 0x01) << 7);
1149         }
1150         return 0;
1151 }
1152
1153 static int XGIfb_open(struct fb_info *info, int user)
1154 {
1155         return 0;
1156 }
1157
1158 static int XGIfb_release(struct fb_info *info, int user)
1159 {
1160         return 0;
1161 }
1162
1163 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1164 {
1165         int rc = 16;
1166
1167         switch (var->bits_per_pixel) {
1168         case 8:
1169                 rc = 256;
1170                 break;
1171         case 16:
1172                 rc = 16;
1173                 break;
1174         case 32:
1175                 rc = 16;
1176                 break;
1177         }
1178         return rc;
1179 }
1180
1181 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1182                 unsigned blue, unsigned transp, struct fb_info *info)
1183 {
1184         struct xgifb_video_info *xgifb_info = info->par;
1185
1186         if (regno >= XGIfb_get_cmap_len(&info->var))
1187                 return 1;
1188
1189         switch (info->var.bits_per_pixel) {
1190         case 8:
1191                 outb(regno, XGIDACA);
1192                 outb((red >> 10), XGIDACD);
1193                 outb((green >> 10), XGIDACD);
1194                 outb((blue >> 10), XGIDACD);
1195                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1196                         outb(regno, XGIDAC2A);
1197                         outb((red >> 8), XGIDAC2D);
1198                         outb((green >> 8), XGIDAC2D);
1199                         outb((blue >> 8), XGIDAC2D);
1200                 }
1201                 break;
1202         case 16:
1203                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1204                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1205                                 >> 11);
1206                 break;
1207         case 32:
1208                 red >>= 8;
1209                 green >>= 8;
1210                 blue >>= 8;
1211                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1212                                 << 8) | (blue);
1213                 break;
1214         }
1215         return 0;
1216 }
1217
1218 /* ----------- FBDev related routines for all series ---------- */
1219
1220 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1221                 struct fb_info *info)
1222 {
1223         struct xgifb_video_info *xgifb_info = info->par;
1224
1225         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1226
1227         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1228
1229         /* if register_framebuffer has been called, we must lock */
1230         if (atomic_read(&info->count))
1231                 mutex_lock(&info->mm_lock);
1232
1233         fix->smem_start = xgifb_info->video_base;
1234         fix->smem_len = xgifb_info->video_size;
1235
1236         /* if register_framebuffer has been called, we can unlock */
1237         if (atomic_read(&info->count))
1238                 mutex_unlock(&info->mm_lock);
1239
1240         fix->type = FB_TYPE_PACKED_PIXELS;
1241         fix->type_aux = 0;
1242         if (xgifb_info->video_bpp == 8)
1243                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1244         else
1245                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1246         fix->xpanstep = 0;
1247         if (XGIfb_ypan)
1248                 fix->ypanstep = 1;
1249         fix->ywrapstep = 0;
1250         fix->line_length = xgifb_info->video_linelength;
1251         fix->mmio_start = xgifb_info->mmio_base;
1252         fix->mmio_len = xgifb_info->mmio_size;
1253         fix->accel = FB_ACCEL_SIS_XABRE;
1254
1255         return 0;
1256 }
1257
1258 static int XGIfb_set_par(struct fb_info *info)
1259 {
1260         int err;
1261
1262         err = XGIfb_do_set_var(&info->var, 1, info);
1263         if (err)
1264                 return err;
1265         XGIfb_get_fix(&info->fix, -1, info);
1266         return 0;
1267 }
1268
1269 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1270 {
1271         struct xgifb_video_info *xgifb_info = info->par;
1272         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1273                         + var->hsync_len;
1274         unsigned int vtotal = 0;
1275         unsigned int drate = 0, hrate = 0;
1276         int found_mode = 0;
1277         int refresh_rate, search_idx;
1278
1279         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1280                 vtotal = var->upper_margin + var->yres + var->lower_margin
1281                                 + var->vsync_len;
1282                 vtotal <<= 1;
1283         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1284                 vtotal = var->upper_margin + var->yres + var->lower_margin
1285                                 + var->vsync_len;
1286                 vtotal <<= 2;
1287         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1288                 vtotal = var->upper_margin + (var->yres / 2)
1289                                 + var->lower_margin + var->vsync_len;
1290         } else
1291                 vtotal = var->upper_margin + var->yres + var->lower_margin
1292                                 + var->vsync_len;
1293
1294         if (!(htotal) || !(vtotal)) {
1295                 pr_debug("No valid timing data\n");
1296                 return -EINVAL;
1297         }
1298
1299         if (var->pixclock && htotal && vtotal) {
1300                 drate = 1000000000 / var->pixclock;
1301                 hrate = (drate * 1000) / htotal;
1302                 xgifb_info->refresh_rate =
1303                         (unsigned int) (hrate * 2 / vtotal);
1304                 pr_debug(
1305                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1306                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1307                         __func__, var->pixclock, htotal, vtotal,
1308                         __func__, drate, hrate, xgifb_info->refresh_rate);
1309         } else {
1310                 xgifb_info->refresh_rate = 60;
1311         }
1312
1313         /* Calculation wrong for 1024x600 - force it to 60Hz */
1314         if ((var->xres == 1024) && (var->yres == 600))
1315                 refresh_rate = 60;
1316
1317         search_idx = 0;
1318         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1319                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1320                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1321                         (XGIbios_mode[search_idx].yres == var->yres) &&
1322                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1323                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1324                                 found_mode = 1;
1325                                 break;
1326                         }
1327                 }
1328                 search_idx++;
1329         }
1330
1331         if (!found_mode) {
1332
1333                 pr_err("%dx%dx%d is no valid mode\n",
1334                         var->xres, var->yres, var->bits_per_pixel);
1335                 search_idx = 0;
1336                 while (XGIbios_mode[search_idx].mode_no != 0) {
1337                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1338                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1339                             (var->bits_per_pixel ==
1340                              XGIbios_mode[search_idx].bpp)) {
1341                                 if (XGIfb_validate_mode(xgifb_info,
1342                                                         search_idx) > 0) {
1343                                         found_mode = 1;
1344                                         break;
1345                                 }
1346                         }
1347                         search_idx++;
1348                 }
1349                 if (found_mode) {
1350                         var->xres = XGIbios_mode[search_idx].xres;
1351                         var->yres = XGIbios_mode[search_idx].yres;
1352                         pr_debug("Adapted to mode %dx%dx%d\n",
1353                                 var->xres, var->yres, var->bits_per_pixel);
1354
1355                 } else {
1356                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1357                                 var->xres, var->yres, var->bits_per_pixel);
1358                         return -EINVAL;
1359                 }
1360         }
1361
1362         /* Adapt RGB settings */
1363         XGIfb_bpp_to_var(xgifb_info, var);
1364
1365         /* Sanity check for offsets */
1366         if (var->xoffset < 0)
1367                 var->xoffset = 0;
1368         if (var->yoffset < 0)
1369                 var->yoffset = 0;
1370
1371         if (!XGIfb_ypan) {
1372                 if (var->xres != var->xres_virtual)
1373                         var->xres_virtual = var->xres;
1374                 if (var->yres != var->yres_virtual)
1375                         var->yres_virtual = var->yres;
1376         }
1377
1378         /* Truncate offsets to maximum if too high */
1379         if (var->xoffset > var->xres_virtual - var->xres)
1380                 var->xoffset = var->xres_virtual - var->xres - 1;
1381
1382         if (var->yoffset > var->yres_virtual - var->yres)
1383                 var->yoffset = var->yres_virtual - var->yres - 1;
1384
1385         /* Set everything else to 0 */
1386         var->red.msb_right =
1387         var->green.msb_right =
1388         var->blue.msb_right =
1389         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1390
1391         return 0;
1392 }
1393
1394 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1395                 struct fb_info *info)
1396 {
1397         int err;
1398
1399         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1400                 return -EINVAL;
1401         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1402                 return -EINVAL;
1403
1404         if (var->vmode & FB_VMODE_YWRAP) {
1405                 if (var->yoffset < 0 || var->yoffset >= info->var.yres_virtual
1406                                 || var->xoffset)
1407                         return -EINVAL;
1408         } else if (var->xoffset + info->var.xres > info->var.xres_virtual
1409                                 || var->yoffset + info->var.yres
1410                                                 > info->var.yres_virtual) {
1411                 return -EINVAL;
1412         }
1413         err = XGIfb_pan_var(var, info);
1414         if (err < 0)
1415                 return err;
1416
1417         info->var.xoffset = var->xoffset;
1418         info->var.yoffset = var->yoffset;
1419         if (var->vmode & FB_VMODE_YWRAP)
1420                 info->var.vmode |= FB_VMODE_YWRAP;
1421         else
1422                 info->var.vmode &= ~FB_VMODE_YWRAP;
1423
1424         return 0;
1425 }
1426
1427 static int XGIfb_blank(int blank, struct fb_info *info)
1428 {
1429         struct xgifb_video_info *xgifb_info = info->par;
1430         u8 reg;
1431
1432         reg = xgifb_reg_get(XGICR, 0x17);
1433
1434         if (blank > 0)
1435                 reg &= 0x7f;
1436         else
1437                 reg |= 0x80;
1438
1439         xgifb_reg_set(XGICR, 0x17, reg);
1440         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1441         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1442         return 0;
1443 }
1444
1445 static struct fb_ops XGIfb_ops = {
1446         .owner = THIS_MODULE,
1447         .fb_open = XGIfb_open,
1448         .fb_release = XGIfb_release,
1449         .fb_check_var = XGIfb_check_var,
1450         .fb_set_par = XGIfb_set_par,
1451         .fb_setcolreg = XGIfb_setcolreg,
1452         .fb_pan_display = XGIfb_pan_display,
1453         .fb_blank = XGIfb_blank,
1454         .fb_fillrect = cfb_fillrect,
1455         .fb_copyarea = cfb_copyarea,
1456         .fb_imageblit = cfb_imageblit,
1457 };
1458
1459 /* ---------------- Chip generation dependent routines ---------------- */
1460
1461 /* for XGI 315/550/650/740/330 */
1462
1463 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1464 {
1465
1466         u8 ChannelNum, tmp;
1467         u8 reg = 0;
1468
1469         /* xorg driver sets 32MB * 1 channel */
1470         if (xgifb_info->chip == XG27)
1471                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1472
1473         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1474         if (!reg)
1475                 return -1;
1476
1477         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1478         case XGI_DRAM_SIZE_1MB:
1479                 xgifb_info->video_size = 0x100000;
1480                 break;
1481         case XGI_DRAM_SIZE_2MB:
1482                 xgifb_info->video_size = 0x200000;
1483                 break;
1484         case XGI_DRAM_SIZE_4MB:
1485                 xgifb_info->video_size = 0x400000;
1486                 break;
1487         case XGI_DRAM_SIZE_8MB:
1488                 xgifb_info->video_size = 0x800000;
1489                 break;
1490         case XGI_DRAM_SIZE_16MB:
1491                 xgifb_info->video_size = 0x1000000;
1492                 break;
1493         case XGI_DRAM_SIZE_32MB:
1494                 xgifb_info->video_size = 0x2000000;
1495                 break;
1496         case XGI_DRAM_SIZE_64MB:
1497                 xgifb_info->video_size = 0x4000000;
1498                 break;
1499         case XGI_DRAM_SIZE_128MB:
1500                 xgifb_info->video_size = 0x8000000;
1501                 break;
1502         case XGI_DRAM_SIZE_256MB:
1503                 xgifb_info->video_size = 0x10000000;
1504                 break;
1505         default:
1506                 return -1;
1507         }
1508
1509         tmp = (reg & 0x0c) >> 2;
1510         switch (xgifb_info->chip) {
1511         case XG20:
1512         case XG21:
1513         case XG27:
1514                 ChannelNum = 1;
1515                 break;
1516
1517         case XG42:
1518                 if (reg & 0x04)
1519                         ChannelNum = 2;
1520                 else
1521                         ChannelNum = 1;
1522                 break;
1523
1524         case XG40:
1525         default:
1526                 if (tmp == 2)
1527                         ChannelNum = 2;
1528                 else if (tmp == 3)
1529                         ChannelNum = 3;
1530                 else
1531                         ChannelNum = 1;
1532                 break;
1533         }
1534
1535         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1536
1537         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1538                reg,
1539                xgifb_info->video_size, ChannelNum);
1540         return 0;
1541
1542 }
1543
1544 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1545 {
1546         u8 cr32, temp = 0;
1547
1548         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1549
1550         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1551
1552         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1553                 XGIfb_crt1off = 0;
1554         else {
1555                 if (cr32 & 0x5F)
1556                         XGIfb_crt1off = 1;
1557                 else
1558                         XGIfb_crt1off = 0;
1559         }
1560
1561         if (!xgifb_info->display2_force) {
1562                 if (cr32 & SIS_VB_TV)
1563                         xgifb_info->display2 = XGIFB_DISP_TV;
1564                 else if (cr32 & SIS_VB_LCD)
1565                         xgifb_info->display2 = XGIFB_DISP_LCD;
1566                 else if (cr32 & SIS_VB_CRT2)
1567                         xgifb_info->display2 = XGIFB_DISP_CRT;
1568                 else
1569                         xgifb_info->display2 = XGIFB_DISP_NONE;
1570         }
1571
1572         if (XGIfb_tvplug != -1)
1573                 /* Override with option */
1574                 xgifb_info->TV_plug = XGIfb_tvplug;
1575         else if (cr32 & SIS_VB_HIVISION) {
1576                 xgifb_info->TV_type = TVMODE_HIVISION;
1577                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1578         } else if (cr32 & SIS_VB_SVIDEO)
1579                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1580         else if (cr32 & SIS_VB_COMPOSITE)
1581                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1582         else if (cr32 & SIS_VB_SCART)
1583                 xgifb_info->TV_plug = TVPLUG_SCART;
1584
1585         if (xgifb_info->TV_type == 0) {
1586                 temp = xgifb_reg_get(XGICR, 0x38);
1587                 if (temp & 0x10)
1588                         xgifb_info->TV_type = TVMODE_PAL;
1589                 else
1590                         xgifb_info->TV_type = TVMODE_NTSC;
1591         }
1592
1593         /* Copy forceCRT1 option to CRT1off if option is given */
1594         if (XGIfb_forcecrt1 != -1) {
1595                 if (XGIfb_forcecrt1)
1596                         XGIfb_crt1off = 0;
1597                 else
1598                         XGIfb_crt1off = 1;
1599         }
1600 }
1601
1602 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1603 {
1604         u8 vb_chipid;
1605
1606         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1607         switch (vb_chipid) {
1608         case 0x01:
1609                 xgifb_info->hasVB = HASVB_301;
1610                 break;
1611         case 0x02:
1612                 xgifb_info->hasVB = HASVB_302;
1613                 break;
1614         default:
1615                 xgifb_info->hasVB = HASVB_NONE;
1616                 return 0;
1617         }
1618         return 1;
1619 }
1620
1621 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1622 {
1623         u8 reg;
1624
1625         if (!XGIfb_has_VB(xgifb_info)) {
1626                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1627                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1628                 case SIS_EXTERNAL_CHIP_LVDS:
1629                         xgifb_info->hasVB = HASVB_LVDS;
1630                         break;
1631                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1632                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1633                         break;
1634                 default:
1635                         break;
1636                 }
1637         }
1638 }
1639
1640 static int __init xgifb_optval(char *fullopt, int validx)
1641 {
1642         unsigned long lres;
1643
1644         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1645                 pr_err("Invalid value for option: %s\n", fullopt);
1646                 return 0;
1647         }
1648         return lres;
1649 }
1650
1651 static int __init XGIfb_setup(char *options)
1652 {
1653         char *this_opt;
1654
1655         if (!options || !*options)
1656                 return 0;
1657
1658         pr_info("Options: %s\n", options);
1659
1660         while ((this_opt = strsep(&options, ",")) != NULL) {
1661
1662                 if (!*this_opt)
1663                         continue;
1664
1665                 if (!strncmp(this_opt, "mode:", 5)) {
1666                         mode = this_opt + 5;
1667                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1668                         vesa = xgifb_optval(this_opt, 5);
1669                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1670                         refresh_rate = xgifb_optval(this_opt, 6);
1671                 } else if (!strncmp(this_opt, "rate:", 5)) {
1672                         refresh_rate = xgifb_optval(this_opt, 5);
1673                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1674                         XGIfb_crt1off = 1;
1675                 } else if (!strncmp(this_opt, "filter:", 7)) {
1676                         filter = xgifb_optval(this_opt, 7);
1677                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1678                         XGIfb_search_crt2type(this_opt + 14);
1679                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1680                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1681                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1682                         XGIfb_search_tvstd(this_opt + 7);
1683                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1684                         XGIfb_search_tvstd(this_opt + 7);
1685                 } else if (!strncmp(this_opt, "dstn", 4)) {
1686                         enable_dstn = 1;
1687                         /* DSTN overrules forcecrt2type */
1688                         XGIfb_crt2type = XGIFB_DISP_LCD;
1689                 } else if (!strncmp(this_opt, "noypan", 6)) {
1690                         XGIfb_ypan = 0;
1691                 } else {
1692                         mode = this_opt;
1693                 }
1694         }
1695         return 0;
1696 }
1697
1698 static int xgifb_probe(struct pci_dev *pdev,
1699                 const struct pci_device_id *ent)
1700 {
1701         u8 reg, reg1;
1702         u8 CR48, CR38;
1703         int ret;
1704         struct fb_info *fb_info;
1705         struct xgifb_video_info *xgifb_info;
1706         struct xgi_hw_device_info *hw_info;
1707         unsigned long video_size_max;
1708
1709         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1710         if (!fb_info)
1711                 return -ENOMEM;
1712
1713         xgifb_info = fb_info->par;
1714         hw_info = &xgifb_info->hw_info;
1715         xgifb_info->fb_info = fb_info;
1716         xgifb_info->chip_id = pdev->device;
1717         pci_read_config_byte(pdev,
1718                              PCI_REVISION_ID,
1719                              &xgifb_info->revision_id);
1720         hw_info->jChipRevision = xgifb_info->revision_id;
1721
1722         xgifb_info->pcibus = pdev->bus->number;
1723         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1724         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1725         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1726         xgifb_info->subsysdevice = pdev->subsystem_device;
1727
1728         video_size_max = pci_resource_len(pdev, 0);
1729         xgifb_info->video_base = pci_resource_start(pdev, 0);
1730         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1731         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1732         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1733         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1734                  (u64) pci_resource_start(pdev, 2),
1735                  xgifb_info->vga_base);
1736
1737         if (pci_enable_device(pdev)) {
1738                 ret = -EIO;
1739                 goto error;
1740         }
1741
1742         if (XGIfb_crt2type != -1) {
1743                 xgifb_info->display2 = XGIfb_crt2type;
1744                 xgifb_info->display2_force = true;
1745         }
1746
1747         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1748
1749         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1750         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1751
1752         if (reg1 != 0xa1) { /*I/O error */
1753                 dev_err(&pdev->dev, "I/O error\n");
1754                 ret = -EIO;
1755                 goto error_disable;
1756         }
1757
1758         switch (xgifb_info->chip_id) {
1759         case PCI_DEVICE_ID_XGI_20:
1760                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1761                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1762                 if (CR48&GPIOG_READ)
1763                         xgifb_info->chip = XG21;
1764                 else
1765                         xgifb_info->chip = XG20;
1766                 break;
1767         case PCI_DEVICE_ID_XGI_40:
1768                 xgifb_info->chip = XG40;
1769                 break;
1770         case PCI_DEVICE_ID_XGI_42:
1771                 xgifb_info->chip = XG42;
1772                 break;
1773         case PCI_DEVICE_ID_XGI_27:
1774                 xgifb_info->chip = XG27;
1775                 break;
1776         default:
1777                 ret = -ENODEV;
1778                 goto error_disable;
1779         }
1780
1781         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1782         hw_info->jChipType = xgifb_info->chip;
1783
1784         if (XGIfb_get_dram_size(xgifb_info)) {
1785                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1786                                                 SZ_16M);
1787         } else if (xgifb_info->video_size > video_size_max) {
1788                 xgifb_info->video_size = video_size_max;
1789         }
1790
1791         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1792         xgifb_reg_or(XGISR,
1793                      IND_SIS_PCI_ADDRESS_SET,
1794                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1795         /* Enable 2D accelerator engine */
1796         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1797
1798         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1799
1800         if (!request_mem_region(xgifb_info->video_base,
1801                                 xgifb_info->video_size,
1802                                 "XGIfb FB")) {
1803                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1804                        xgifb_info->video_size);
1805                 dev_err(&pdev->dev,
1806                         "Fatal error: Unable to reserve frame buffer memory. "
1807                         "Is there another framebuffer driver active?\n");
1808                 ret = -ENODEV;
1809                 goto error_disable;
1810         }
1811
1812         if (!request_mem_region(xgifb_info->mmio_base,
1813                                 xgifb_info->mmio_size,
1814                                 "XGIfb MMIO")) {
1815                 dev_err(&pdev->dev,
1816                         "Fatal error: Unable to reserve MMIO region\n");
1817                 ret = -ENODEV;
1818                 goto error_0;
1819         }
1820
1821         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1822         ioremap(xgifb_info->video_base, xgifb_info->video_size);
1823         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1824                                             xgifb_info->mmio_size);
1825
1826         dev_info(&pdev->dev,
1827                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1828                  (u64) xgifb_info->video_base,
1829                  xgifb_info->video_vbase,
1830                  xgifb_info->video_size / 1024);
1831
1832         dev_info(&pdev->dev,
1833                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1834                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1835                  xgifb_info->mmio_size / 1024);
1836
1837         pci_set_drvdata(pdev, xgifb_info);
1838         if (!XGIInitNew(pdev))
1839                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1840
1841         xgifb_info->mtrr = (unsigned int) 0;
1842
1843         xgifb_info->hasVB = HASVB_NONE;
1844         if ((xgifb_info->chip == XG20) ||
1845             (xgifb_info->chip == XG27)) {
1846                 xgifb_info->hasVB = HASVB_NONE;
1847         } else if (xgifb_info->chip == XG21) {
1848                 CR38 = xgifb_reg_get(XGICR, 0x38);
1849                 if ((CR38&0xE0) == 0xC0)
1850                         xgifb_info->display2 = XGIFB_DISP_LCD;
1851                 else if ((CR38&0xE0) == 0x60)
1852                         xgifb_info->hasVB = HASVB_CHRONTEL;
1853                 else
1854                         xgifb_info->hasVB = HASVB_NONE;
1855         } else {
1856                 XGIfb_get_VB_type(xgifb_info);
1857         }
1858
1859         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1860
1861         hw_info->ulExternalChip = 0;
1862
1863         switch (xgifb_info->hasVB) {
1864         case HASVB_301:
1865                 reg = xgifb_reg_get(XGIPART4, 0x01);
1866                 if (reg >= 0xE0) {
1867                         hw_info->ujVBChipID = VB_CHIP_302LV;
1868                         dev_info(&pdev->dev,
1869                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1870                                  reg);
1871                 } else if (reg >= 0xD0) {
1872                         hw_info->ujVBChipID = VB_CHIP_301LV;
1873                         dev_info(&pdev->dev,
1874                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1875                                  reg);
1876                 } else {
1877                         hw_info->ujVBChipID = VB_CHIP_301;
1878                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1879                 }
1880                 break;
1881         case HASVB_302:
1882                 reg = xgifb_reg_get(XGIPART4, 0x01);
1883                 if (reg >= 0xE0) {
1884                         hw_info->ujVBChipID = VB_CHIP_302LV;
1885                         dev_info(&pdev->dev,
1886                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1887                                  reg);
1888                 } else if (reg >= 0xD0) {
1889                         hw_info->ujVBChipID = VB_CHIP_301LV;
1890                         dev_info(&pdev->dev,
1891                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1892                                  reg);
1893                 } else if (reg >= 0xB0) {
1894                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1895
1896                         hw_info->ujVBChipID = VB_CHIP_302B;
1897
1898                 } else {
1899                         hw_info->ujVBChipID = VB_CHIP_302;
1900                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1901                 }
1902                 break;
1903         case HASVB_LVDS:
1904                 hw_info->ulExternalChip = 0x1;
1905                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1906                 break;
1907         case HASVB_TRUMPION:
1908                 hw_info->ulExternalChip = 0x2;
1909                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1910                 break;
1911         case HASVB_CHRONTEL:
1912                 hw_info->ulExternalChip = 0x4;
1913                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1914                 break;
1915         case HASVB_LVDS_CHRONTEL:
1916                 hw_info->ulExternalChip = 0x5;
1917                 dev_info(&pdev->dev,
1918                          "LVDS transmitter and Chrontel TV encoder detected\n");
1919                 break;
1920         default:
1921                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1922                 break;
1923         }
1924
1925         if (xgifb_info->hasVB != HASVB_NONE)
1926                 XGIfb_detect_VB(xgifb_info);
1927         else if (xgifb_info->chip != XG21)
1928                 xgifb_info->display2 = XGIFB_DISP_NONE;
1929
1930         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1931                 if (!enable_dstn) {
1932                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1933                         reg &= 0x0f;
1934                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1935                 }
1936         }
1937
1938         xgifb_info->mode_idx = -1;
1939
1940         if (mode)
1941                 XGIfb_search_mode(xgifb_info, mode);
1942         else if (vesa != -1)
1943                 XGIfb_search_vesamode(xgifb_info, vesa);
1944
1945         if (xgifb_info->mode_idx >= 0)
1946                 xgifb_info->mode_idx =
1947                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1948
1949         if (xgifb_info->mode_idx < 0) {
1950                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1951                     xgifb_info->chip == XG21)
1952                         xgifb_info->mode_idx =
1953                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1954                 else
1955                         xgifb_info->mode_idx = DEFAULT_MODE;
1956         }
1957
1958         if (xgifb_info->mode_idx < 0) {
1959                 dev_err(&pdev->dev, "No supported video mode found\n");
1960                 goto error_1;
1961         }
1962
1963         /* set default refresh rate */
1964         xgifb_info->refresh_rate = refresh_rate;
1965         if (xgifb_info->refresh_rate == 0)
1966                 xgifb_info->refresh_rate = 60;
1967         if (XGIfb_search_refresh_rate(xgifb_info,
1968                         xgifb_info->refresh_rate) == 0) {
1969                 xgifb_info->rate_idx = 1;
1970                 xgifb_info->refresh_rate = 60;
1971         }
1972
1973         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1974         xgifb_info->video_vwidth =
1975                 xgifb_info->video_width =
1976                         XGIbios_mode[xgifb_info->mode_idx].xres;
1977         xgifb_info->video_vheight =
1978                 xgifb_info->video_height =
1979                         XGIbios_mode[xgifb_info->mode_idx].yres;
1980         xgifb_info->org_x = xgifb_info->org_y = 0;
1981         xgifb_info->video_linelength =
1982                 xgifb_info->video_width *
1983                 (xgifb_info->video_bpp >> 3);
1984         switch (xgifb_info->video_bpp) {
1985         case 8:
1986                 xgifb_info->DstColor = 0x0000;
1987                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1988                 xgifb_info->video_cmap_len = 256;
1989                 break;
1990         case 16:
1991                 xgifb_info->DstColor = 0x8000;
1992                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1993                 xgifb_info->video_cmap_len = 16;
1994                 break;
1995         case 32:
1996                 xgifb_info->DstColor = 0xC000;
1997                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1998                 xgifb_info->video_cmap_len = 16;
1999                 break;
2000         default:
2001                 xgifb_info->video_cmap_len = 16;
2002                 pr_info("Unsupported depth %d\n",
2003                        xgifb_info->video_bpp);
2004                 break;
2005         }
2006
2007         pr_info("Default mode is %dx%dx%d (%dHz)\n",
2008                xgifb_info->video_width,
2009                xgifb_info->video_height,
2010                xgifb_info->video_bpp,
2011                xgifb_info->refresh_rate);
2012
2013         fb_info->var.red.length         = 8;
2014         fb_info->var.green.length       = 8;
2015         fb_info->var.blue.length        = 8;
2016         fb_info->var.activate           = FB_ACTIVATE_NOW;
2017         fb_info->var.height             = -1;
2018         fb_info->var.width              = -1;
2019         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
2020         fb_info->var.xres               = xgifb_info->video_width;
2021         fb_info->var.xres_virtual       = xgifb_info->video_width;
2022         fb_info->var.yres               = xgifb_info->video_height;
2023         fb_info->var.yres_virtual       = xgifb_info->video_height;
2024         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
2025
2026         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
2027
2028         fb_info->var.pixclock = (u32) (1000000000 /
2029                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
2030                                 hw_info,
2031                                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2032                                 xgifb_info->rate_idx));
2033
2034         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
2035                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2036                 xgifb_info->rate_idx,
2037                 &fb_info->var.left_margin,
2038                 &fb_info->var.right_margin,
2039                 &fb_info->var.upper_margin,
2040                 &fb_info->var.lower_margin,
2041                 &fb_info->var.hsync_len,
2042                 &fb_info->var.vsync_len,
2043                 &fb_info->var.sync,
2044                 &fb_info->var.vmode)) {
2045
2046                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2047                     FB_VMODE_INTERLACED) {
2048                         fb_info->var.yres <<= 1;
2049                         fb_info->var.yres_virtual <<= 1;
2050                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2051                            FB_VMODE_DOUBLE) {
2052                         fb_info->var.pixclock >>= 1;
2053                         fb_info->var.yres >>= 1;
2054                         fb_info->var.yres_virtual >>= 1;
2055                 }
2056
2057         }
2058
2059         fb_info->flags = FBINFO_FLAG_DEFAULT;
2060         fb_info->screen_base = xgifb_info->video_vbase;
2061         fb_info->fbops = &XGIfb_ops;
2062         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2063         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2064
2065         fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2066
2067 #ifdef CONFIG_MTRR
2068         xgifb_info->mtrr = mtrr_add(xgifb_info->video_base,
2069                 xgifb_info->video_size, MTRR_TYPE_WRCOMB, 1);
2070         if (xgifb_info->mtrr >= 0)
2071                 dev_info(&pdev->dev, "Added MTRR\n");
2072 #endif
2073
2074         if (register_framebuffer(fb_info) < 0) {
2075                 ret = -EINVAL;
2076                 goto error_mtrr;
2077         }
2078
2079         dumpVGAReg();
2080
2081         return 0;
2082
2083 error_mtrr:
2084 #ifdef CONFIG_MTRR
2085         if (xgifb_info->mtrr >= 0)
2086                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2087                         xgifb_info->video_size);
2088 #endif /* CONFIG_MTRR */
2089 error_1:
2090         iounmap(xgifb_info->mmio_vbase);
2091         iounmap(xgifb_info->video_vbase);
2092         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2093 error_0:
2094         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2095 error_disable:
2096         pci_disable_device(pdev);
2097 error:
2098         framebuffer_release(fb_info);
2099         return ret;
2100 }
2101
2102 /*****************************************************/
2103 /*                PCI DEVICE HANDLING                */
2104 /*****************************************************/
2105
2106 static void xgifb_remove(struct pci_dev *pdev)
2107 {
2108         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2109         struct fb_info *fb_info = xgifb_info->fb_info;
2110
2111         unregister_framebuffer(fb_info);
2112 #ifdef CONFIG_MTRR
2113         if (xgifb_info->mtrr >= 0)
2114                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2115                         xgifb_info->video_size);
2116 #endif /* CONFIG_MTRR */
2117         iounmap(xgifb_info->mmio_vbase);
2118         iounmap(xgifb_info->video_vbase);
2119         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2120         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2121         pci_disable_device(pdev);
2122         framebuffer_release(fb_info);
2123         pci_set_drvdata(pdev, NULL);
2124 }
2125
2126 static struct pci_driver xgifb_driver = {
2127         .name = "xgifb",
2128         .id_table = xgifb_pci_table,
2129         .probe = xgifb_probe,
2130         .remove = xgifb_remove
2131 };
2132
2133
2134
2135 /*****************************************************/
2136 /*                      MODULE                       */
2137 /*****************************************************/
2138
2139 module_param(mode, charp, 0);
2140 MODULE_PARM_DESC(mode,
2141         "Selects the desired default display mode in the format XxYxDepth "
2142         "(eg. 1024x768x16).");
2143
2144 module_param(forcecrt2type, charp, 0);
2145 MODULE_PARM_DESC(forcecrt2type,
2146         "Force the second display output type. Possible values are NONE, "
2147         "LCD, TV, VGA, SVIDEO or COMPOSITE.");
2148
2149 module_param(vesa, int, 0);
2150 MODULE_PARM_DESC(vesa,
2151         "Selects the desired default display mode by VESA mode number "
2152         "(eg. 0x117).");
2153
2154 module_param(filter, int, 0);
2155 MODULE_PARM_DESC(filter,
2156         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). "
2157         "Possible values 0-7. Default: [no filter]).");
2158
2159 static int __init xgifb_init(void)
2160 {
2161         char *option = NULL;
2162
2163         if (forcecrt2type != NULL)
2164                 XGIfb_search_crt2type(forcecrt2type);
2165         if (fb_get_options("xgifb", &option))
2166                 return -ENODEV;
2167         XGIfb_setup(option);
2168
2169         return pci_register_driver(&xgifb_driver);
2170 }
2171
2172 static void __exit xgifb_remove_module(void)
2173 {
2174         pci_unregister_driver(&xgifb_driver);
2175         pr_debug("Module unloaded\n");
2176 }
2177
2178 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2179 MODULE_LICENSE("GPL");
2180 MODULE_AUTHOR("XGITECH , Others");
2181 module_init(xgifb_init);
2182 module_exit(xgifb_remove_module);