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 #include <linux/pci.h>
  12
  13 #include "XGI_main.h"
  14 #include "vb_init.h"
  15 #include "vb_util.h"
  16 #include "vb_setmode.h"
  17
  18 #define Index_CR_GPIO_Reg1 0x48
  19 #define Index_CR_GPIO_Reg3 0x4a
  20
  21 #define GPIOG_EN    BIT(6)
  22 #define GPIOG_READ  BIT(1)
  23
  24 static char *forcecrt2type;
  25 static char *mode;
  26 static int vesa = -1;
  27 static unsigned int refresh_rate;
  28
  29 /* -------------------- Macro definitions ---------------------------- */
  30
  31 #ifdef DEBUG
  32 static void dumpVGAReg(struct xgifb_video_info *xgifb_info)
  33 {
  34         u8 i, reg;
  35
  36         xgifb_reg_set(XGISR, 0x05, 0x86);
  37
  38         for (i = 0; i < 0x4f; i++) {
  39                 reg = xgifb_reg_get(XGISR, i);
  40                 pr_debug("o 3c4 %x\n", i);
  41                 pr_debug("i 3c5 => %x\n", reg);
  42         }
  43
  44         for (i = 0; i < 0xF0; i++) {
  45                 reg = xgifb_reg_get(XGICR, i);
  46                 pr_debug("o 3d4 %x\n", i);
  47                 pr_debug("i 3d5 => %x\n", reg);
  48         }
  49 }
  50 #else
  51 static inline void dumpVGAReg(struct xgifb_video_info *xgifb_info)
  52 {
  53 }
  54 #endif
  55
  56 /* --------------- Hardware Access Routines -------------------------- */
  57
  58 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
  59                                      struct xgi_hw_device_info *HwDeviceExtension,
  60                                      unsigned char modeno)
  61 {
  62         unsigned short ModeNo = modeno;
  63         unsigned short ModeIdIndex = 0, ClockIndex = 0;
  64         unsigned short RefreshRateTableIndex = 0;
  65
  66         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  67
  68         XGI_SearchModeID(ModeNo, &ModeIdIndex);
  69
  70         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  71                                                    ModeIdIndex, XGI_Pr);
  72
  73         ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
  74
  75         return XGI_VCLKData[ClockIndex].CLOCK * 1000;
  76 }
  77
  78 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
  79                                     struct xgi_hw_device_info *HwDeviceExtension,
  80                                     unsigned char modeno, u32 *left_margin,
  81                                     u32 *right_margin, u32 *upper_margin,
  82                                     u32 *lower_margin, u32 *hsync_len,
  83                                     u32 *vsync_len, u32 *sync, u32 *vmode)
  84 {
  85         unsigned short ModeNo = modeno;
  86         unsigned short ModeIdIndex, index = 0;
  87         unsigned short RefreshRateTableIndex = 0;
  88
  89         unsigned short VRE, VBE, VRS, VDE;
  90         unsigned short HRE, HBE, HRS, HDE;
  91         unsigned char sr_data, cr_data, cr_data2;
  92         int B, C, D, F, temp, j;
  93
  94         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  95         if (!XGI_SearchModeID(ModeNo, &ModeIdIndex))
  96                 return 0;
  97         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  98                                                    ModeIdIndex, XGI_Pr);
  99         index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 100
 101         sr_data = XGI_CRT1Table[index].CR[5];
 102
 103         HDE = XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3;
 104
 105         cr_data = XGI_CRT1Table[index].CR[3];
 106
 107         /* Horizontal retrace (=sync) start */
 108         HRS = (cr_data & 0xff) | ((unsigned short)(sr_data & 0xC0) << 2);
 109         F = HRS - HDE - 3;
 110
 111         sr_data = XGI_CRT1Table[index].CR[6];
 112
 113         cr_data = XGI_CRT1Table[index].CR[2];
 114
 115         cr_data2 = XGI_CRT1Table[index].CR[4];
 116
 117         /* Horizontal blank end */
 118         HBE = (cr_data & 0x1f) | ((unsigned short)(cr_data2 & 0x80) >> 2)
 119                         | ((unsigned short)(sr_data & 0x03) << 6);
 120
 121         /* Horizontal retrace (=sync) end */
 122         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 123
 124         temp = HBE - ((HDE - 1) & 255);
 125         B = (temp > 0) ? temp : (temp + 256);
 126
 127         temp = HRE - ((HDE + F + 3) & 63);
 128         C = (temp > 0) ? temp : (temp + 64);
 129
 130         D = B - F - C;
 131
 132         *left_margin = D * 8;
 133         *right_margin = F * 8;
 134         *hsync_len = C * 8;
 135
 136         sr_data = XGI_CRT1Table[index].CR[14];
 137
 138         cr_data2 = XGI_CRT1Table[index].CR[9];
 139
 140         VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes;
 141
 142         cr_data = XGI_CRT1Table[index].CR[10];
 143
 144         /* Vertical retrace (=sync) start */
 145         VRS = (cr_data & 0xff) | ((unsigned short)(cr_data2 & 0x04) << 6)
 146                         | ((unsigned short)(cr_data2 & 0x80) << 2)
 147                         | ((unsigned short)(sr_data & 0x08) << 7);
 148         F = VRS + 1 - VDE;
 149
 150         cr_data = XGI_CRT1Table[index].CR[13];
 151
 152         /* Vertical blank end */
 153         VBE = (cr_data & 0xff) | ((unsigned short)(sr_data & 0x10) << 4);
 154         temp = VBE - ((VDE - 1) & 511);
 155         B = (temp > 0) ? temp : (temp + 512);
 156
 157         cr_data = XGI_CRT1Table[index].CR[11];
 158
 159         /* Vertical retrace (=sync) end */
 160         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 161         temp = VRE - ((VDE + F - 1) & 31);
 162         C = (temp > 0) ? temp : (temp + 32);
 163
 164         D = B - F - C;
 165
 166         *upper_margin = D;
 167         *lower_margin = F;
 168         *vsync_len = C;
 169
 170         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 171                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 172         else
 173                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 174
 175         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 176                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 177         else
 178                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 179
 180         *vmode = FB_VMODE_NONINTERLACED;
 181         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080) {
 182                 *vmode = FB_VMODE_INTERLACED;
 183         } else {
 184                 j = 0;
 185                 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
 186                         if (XGI330_EModeIDTable[j].Ext_ModeID ==
 187                             XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
 188                                 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
 189                                     DoubleScanMode) {
 190                                         *vmode = FB_VMODE_DOUBLE;
 191                                 }
 192                                 break;
 193                         }
 194                         j++;
 195                 }
 196         }
 197
 198         return 1;
 199 }
 200
 201 void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 202 {
 203         XGI_Pr->P3c4 = BaseAddr + 0x14;
 204         XGI_Pr->P3d4 = BaseAddr + 0x24;
 205         XGI_Pr->P3c0 = BaseAddr + 0x10;
 206         XGI_Pr->P3ce = BaseAddr + 0x1e;
 207         XGI_Pr->P3c2 = BaseAddr + 0x12;
 208         XGI_Pr->P3cc = BaseAddr + 0x1c;
 209         XGI_Pr->P3ca = BaseAddr + 0x1a;
 210         XGI_Pr->P3c6 = BaseAddr + 0x16;
 211         XGI_Pr->P3c7 = BaseAddr + 0x17;
 212         XGI_Pr->P3c8 = BaseAddr + 0x18;
 213         XGI_Pr->P3c9 = BaseAddr + 0x19;
 214         XGI_Pr->P3da = BaseAddr + 0x2A;
 215         XGI_Pr->Part0Port = BaseAddr + XGI_CRT2_PORT_00;
 216         /* Digital video interface registers (LCD) */
 217         XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
 218         /* 301 TV Encoder registers */
 219         XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
 220         /* 301 Macrovision registers */
 221         XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
 222         /* 301 VGA2 (and LCD) registers */
 223         XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
 224         /* 301 palette address port registers */
 225         XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
 226 }
 227
 228 /* ------------------ Internal helper routines ----------------- */
 229
 230 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 231 {
 232         int i = 0;
 233
 234         while ((XGIbios_mode[i].mode_no != 0) &&
 235                (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
 236                 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE) &&
 237                     (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE) &&
 238                     (XGIbios_mode[i].bpp == 8)) {
 239                         return i;
 240                 }
 241                 i++;
 242         }
 243
 244         return -1;
 245 }
 246
 247 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 248                               const char *name)
 249 {
 250         unsigned int xres;
 251         unsigned int yres;
 252         unsigned int bpp;
 253         int i;
 254
 255         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 256                 goto invalid_mode;
 257
 258         if (bpp == 24)
 259                 bpp = 32; /* That's for people who mix up color and fb depth. */
 260
 261         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 262                 if (XGIbios_mode[i].xres == xres &&
 263                     XGIbios_mode[i].yres == yres &&
 264                     XGIbios_mode[i].bpp == bpp) {
 265                         xgifb_info->mode_idx = i;
 266                         return;
 267                 }
 268 invalid_mode:
 269         pr_info("Invalid mode '%s'\n", name);
 270 }
 271
 272 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 273                                   unsigned int vesamode)
 274 {
 275         int i = 0;
 276
 277         if (vesamode == 0)
 278                 goto invalid;
 279
 280         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 281
 282         while (XGIbios_mode[i].mode_no != 0) {
 283                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 284                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 285                         xgifb_info->mode_idx = i;
 286                         return;
 287                 }
 288                 i++;
 289         }
 290
 291 invalid:
 292         pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 293 }
 294
 295 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 296 {
 297         u16 xres, yres;
 298         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 299         unsigned long required_mem;
 300
 301         if (xgifb_info->chip == XG21) {
 302                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 303                         xres = xgifb_info->lvds_data.LVDSHDE;
 304                         yres = xgifb_info->lvds_data.LVDSVDE;
 305                         if (XGIbios_mode[myindex].xres > xres)
 306                                 return -1;
 307                         if (XGIbios_mode[myindex].yres > yres)
 308                                 return -1;
 309                         if ((XGIbios_mode[myindex].xres < xres) &&
 310                             (XGIbios_mode[myindex].yres < yres)) {
 311                                 if (XGIbios_mode[myindex].bpp > 8)
 312                                         return -1;
 313                         }
 314                 }
 315                 goto check_memory;
 316         }
 317
 318         /* FIXME: for now, all is valid on XG27 */
 319         if (xgifb_info->chip == XG27)
 320                 goto check_memory;
 321
 322         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 323                 return -1;
 324
 325         switch (xgifb_info->display2) {
 326         case XGIFB_DISP_LCD:
 327                 switch (hw_info->ulCRT2LCDType) {
 328                 case LCD_640x480:
 329                         xres = 640;
 330                         yres = 480;
 331                         break;
 332                 case LCD_800x600:
 333                         xres = 800;
 334                         yres = 600;
 335                         break;
 336                 case LCD_1024x600:
 337                         xres = 1024;
 338                         yres = 600;
 339                         break;
 340                 case LCD_1024x768:
 341                         xres = 1024;
 342                         yres = 768;
 343                         break;
 344                 case LCD_1152x768:
 345                         xres = 1152;
 346                         yres = 768;
 347                         break;
 348                 case LCD_1280x960:
 349                         xres = 1280;
 350                         yres = 960;
 351                         break;
 352                 case LCD_1280x768:
 353                         xres = 1280;
 354                         yres = 768;
 355                         break;
 356                 case LCD_1280x1024:
 357                         xres = 1280;
 358                         yres = 1024;
 359                         break;
 360                 case LCD_1400x1050:
 361                         xres = 1400;
 362                         yres = 1050;
 363                         break;
 364                 case LCD_1600x1200:
 365                         xres = 1600;
 366                         yres = 1200;
 367                         break;
 368                 default:
 369                         xres = 0;
 370                         yres = 0;
 371                         break;
 372                 }
 373                 if (XGIbios_mode[myindex].xres > xres)
 374                         return -1;
 375                 if (XGIbios_mode[myindex].yres > yres)
 376                         return -1;
 377                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 378                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 379                         switch (XGIbios_mode[myindex].xres) {
 380                         case 512:
 381                                 if (XGIbios_mode[myindex].yres != 512)
 382                                         return -1;
 383                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 384                                         return -1;
 385                                 break;
 386                         case 640:
 387                                 if ((XGIbios_mode[myindex].yres != 400) &&
 388                                     (XGIbios_mode[myindex].yres != 480))
 389                                         return -1;
 390                                 break;
 391                         case 800:
 392                                 if (XGIbios_mode[myindex].yres != 600)
 393                                         return -1;
 394                                 break;
 395                         case 1024:
 396                                 if ((XGIbios_mode[myindex].yres != 600) &&
 397                                     (XGIbios_mode[myindex].yres != 768))
 398                                         return -1;
 399                                 if ((XGIbios_mode[myindex].yres == 600) &&
 400                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 401                                         return -1;
 402                                 break;
 403                         case 1152:
 404                                 if ((XGIbios_mode[myindex].yres) != 768)
 405                                         return -1;
 406                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 407                                         return -1;
 408                                 break;
 409                         case 1280:
 410                                 if ((XGIbios_mode[myindex].yres != 768) &&
 411                                     (XGIbios_mode[myindex].yres != 1024))
 412                                         return -1;
 413                                 if ((XGIbios_mode[myindex].yres == 768) &&
 414                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 415                                         return -1;
 416                                 break;
 417                         case 1400:
 418                                 if (XGIbios_mode[myindex].yres != 1050)
 419                                         return -1;
 420                                 break;
 421                         case 1600:
 422                                 if (XGIbios_mode[myindex].yres != 1200)
 423                                         return -1;
 424                                 break;
 425                         default:
 426                                 return -1;
 427                         }
 428                 } else {
 429                         switch (XGIbios_mode[myindex].xres) {
 430                         case 512:
 431                                 if (XGIbios_mode[myindex].yres != 512)
 432                                         return -1;
 433                                 break;
 434                         case 640:
 435                                 if ((XGIbios_mode[myindex].yres != 400) &&
 436                                     (XGIbios_mode[myindex].yres != 480))
 437                                         return -1;
 438                                 break;
 439                         case 800:
 440                                 if (XGIbios_mode[myindex].yres != 600)
 441                                         return -1;
 442                                 break;
 443                         case 1024:
 444                                 if (XGIbios_mode[myindex].yres != 768)
 445                                         return -1;
 446                                 break;
 447                         case 1280:
 448                                 if ((XGIbios_mode[myindex].yres != 960) &&
 449                                     (XGIbios_mode[myindex].yres != 1024))
 450                                         return -1;
 451                                 if (XGIbios_mode[myindex].yres == 960) {
 452                                         if (hw_info->ulCRT2LCDType ==
 453                                             LCD_1400x1050)
 454                                                 return -1;
 455                                 }
 456                                 break;
 457                         case 1400:
 458                                 if (XGIbios_mode[myindex].yres != 1050)
 459                                         return -1;
 460                                 break;
 461                         case 1600:
 462                                 if (XGIbios_mode[myindex].yres != 1200)
 463                                         return -1;
 464                                 break;
 465                         default:
 466                                 return -1;
 467                         }
 468                 }
 469                 break;
 470         case XGIFB_DISP_TV:
 471                 switch (XGIbios_mode[myindex].xres) {
 472                 case 512:
 473                 case 640:
 474                 case 800:
 475                         break;
 476                 case 720:
 477                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 478                                 if (XGIbios_mode[myindex].yres != 480)
 479                                         return -1;
 480                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 481                                 if (XGIbios_mode[myindex].yres != 576)
 482                                         return -1;
 483                         }
 484                         /* LVDS/CHRONTEL does not support 720 */
 485                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 486                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 487                                 return -1;
 488                         }
 489                         break;
 490                 case 1024:
 491                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 492                                 if (XGIbios_mode[myindex].bpp == 32)
 493                                         return -1;
 494                         }
 495                         break;
 496                 default:
 497                         return -1;
 498                 }
 499                 break;
 500         case XGIFB_DISP_CRT:
 501                 if (XGIbios_mode[myindex].xres > 1280)
 502                         return -1;
 503                 break;
 504         case XGIFB_DISP_NONE:
 505                 break;
 506         }
 507
 508 check_memory:
 509         required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
 510                        XGIbios_mode[myindex].bpp / 8;
 511         if (required_mem > xgifb_info->video_size)
 512                 return -1;
 513         return myindex;
 514 }
 515
 516 static void XGIfb_search_crt2type(const char *name)
 517 {
 518         int i = 0;
 519
 520         if (!name)
 521                 return;
 522
 523         while (XGI_crt2type[i].type_no != -1) {
 524                 if (!strcmp(name, XGI_crt2type[i].name)) {
 525                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 526                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 527                         break;
 528                 }
 529                 i++;
 530         }
 531         if (XGIfb_crt2type < 0)
 532                 pr_info("Invalid CRT2 type: %s\n", name);
 533 }
 534
 535 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 536                                     unsigned int rate)
 537 {
 538         u16 xres, yres;
 539         int i = 0;
 540
 541         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 542         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 543
 544         xgifb_info->rate_idx = 0;
 545         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 546                 if ((XGIfb_vrate[i].xres == xres) &&
 547                     (XGIfb_vrate[i].yres == yres)) {
 548                         if (XGIfb_vrate[i].refresh == rate) {
 549                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 550                                 break;
 551                         } else if (XGIfb_vrate[i].refresh > rate) {
 552                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 553                                         pr_debug("Adjusting rate from %d up to %d\n",
 554                                                  rate, XGIfb_vrate[i].refresh);
 555                                         xgifb_info->rate_idx =
 556                                                 XGIfb_vrate[i].idx;
 557                                         xgifb_info->refresh_rate =
 558                                                 XGIfb_vrate[i].refresh;
 559                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 560                                                 <= 2) && (XGIfb_vrate[i].idx
 561                                                 != 1)) {
 562                                         pr_debug("Adjusting rate from %d down to %d\n",
 563                                                  rate,
 564                                                  XGIfb_vrate[i - 1].refresh);
 565                                         xgifb_info->rate_idx =
 566                                                 XGIfb_vrate[i - 1].idx;
 567                                         xgifb_info->refresh_rate =
 568                                                 XGIfb_vrate[i - 1].refresh;
 569                                 }
 570                                 break;
 571                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 572                                 pr_debug("Adjusting rate from %d down to %d\n",
 573                                          rate, XGIfb_vrate[i].refresh);
 574                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 575                                 break;
 576                         }
 577                 }
 578                 i++;
 579         }
 580         if (xgifb_info->rate_idx > 0)
 581                 return xgifb_info->rate_idx;
 582         pr_info("Unsupported rate %d for %dx%d\n",
 583                 rate, xres, yres);
 584         return 0;
 585 }
 586
 587 static void XGIfb_search_tvstd(const char *name)
 588 {
 589         int i = 0;
 590
 591         if (!name)
 592                 return;
 593
 594         while (XGI_tvtype[i].type_no != -1) {
 595                 if (!strcmp(name, XGI_tvtype[i].name)) {
 596                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 597                         break;
 598                 }
 599                 i++;
 600         }
 601 }
 602
 603 /* ----------- FBDev related routines for all series ----------- */
 604
 605 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 606                              struct fb_var_screeninfo *var)
 607 {
 608         switch (var->bits_per_pixel) {
 609         case 8:
 610                 var->red.offset = 0;
 611                 var->green.offset = 0;
 612                 var->blue.offset = 0;
 613                 var->red.length = 6;
 614                 var->green.length = 6;
 615                 var->blue.length = 6;
 616                 xgifb_info->video_cmap_len = 256;
 617                 break;
 618         case 16:
 619                 var->red.offset = 11;
 620                 var->red.length = 5;
 621                 var->green.offset = 5;
 622                 var->green.length = 6;
 623                 var->blue.offset = 0;
 624                 var->blue.length = 5;
 625                 var->transp.offset = 0;
 626                 var->transp.length = 0;
 627                 xgifb_info->video_cmap_len = 16;
 628                 break;
 629         case 32:
 630                 var->red.offset = 16;
 631                 var->red.length = 8;
 632                 var->green.offset = 8;
 633                 var->green.length = 8;
 634                 var->blue.offset = 0;
 635                 var->blue.length = 8;
 636                 var->transp.offset = 24;
 637                 var->transp.length = 8;
 638                 xgifb_info->video_cmap_len = 16;
 639                 break;
 640         }
 641 }
 642
 643 /* --------------------- SetMode routines ------------------------- */
 644
 645 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 646 {
 647         u8 cr30 = 0, cr31 = 0;
 648
 649         cr31 = xgifb_reg_get(XGICR, 0x31);
 650         cr31 &= ~0x60;
 651
 652         switch (xgifb_info->display2) {
 653         case XGIFB_DISP_CRT:
 654                 cr30 = SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE;
 655                 cr31 |= SIS_DRIVER_MODE;
 656                 break;
 657         case XGIFB_DISP_LCD:
 658                 cr30 = SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE;
 659                 cr31 |= SIS_DRIVER_MODE;
 660                 break;
 661         case XGIFB_DISP_TV:
 662                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 663                         cr30 = SIS_VB_OUTPUT_HIVISION
 664                                         | SIS_SIMULTANEOUS_VIEW_ENABLE;
 665                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 666                         cr30 = SIS_VB_OUTPUT_SVIDEO
 667                                         | SIS_SIMULTANEOUS_VIEW_ENABLE;
 668                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 669                         cr30 = SIS_VB_OUTPUT_COMPOSITE
 670                                         | SIS_SIMULTANEOUS_VIEW_ENABLE;
 671                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 672                         cr30 = SIS_VB_OUTPUT_SCART
 673                                         | SIS_SIMULTANEOUS_VIEW_ENABLE;
 674                 cr31 |= SIS_DRIVER_MODE;
 675
 676                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 677                         cr31 |= 0x01;
 678                 else
 679                         cr31 &= ~0x01;
 680                 break;
 681         default: /* disable CRT2 */
 682                 cr30 = 0x00;
 683                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 684         }
 685
 686         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 687         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 688         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 689                       (xgifb_info->rate_idx & 0x0F));
 690 }
 691
 692 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 693 {
 694         u8 reg;
 695         unsigned char doit = 1;
 696
 697         if (xgifb_info->video_bpp == 8) {
 698                 /*
 699                  * We can't switch off CRT1 on LVDS/Chrontel
 700                  * in 8bpp Modes
 701                  */
 702                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 703                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 704                         doit = 0;
 705                 }
 706                 /*
 707                  * We can't switch off CRT1 on 301B-DH
 708                  * in 8bpp Modes if using LCD
 709                  */
 710                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 711                         doit = 0;
 712         }
 713
 714         /* We can't switch off CRT1 if bridge is in slave mode */
 715         if (xgifb_info->hasVB != HASVB_NONE) {
 716                 reg = xgifb_reg_get(XGIPART1, 0x00);
 717
 718                 if ((reg & 0x50) == 0x10)
 719                         doit = 0;
 720
 721         } else {
 722                 XGIfb_crt1off = 0;
 723         }
 724
 725         reg = xgifb_reg_get(XGICR, 0x17);
 726         if ((XGIfb_crt1off) && (doit))
 727                 reg &= ~0x80;
 728         else
 729                 reg |= 0x80;
 730         xgifb_reg_set(XGICR, 0x17, reg);
 731
 732         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 733
 734         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 735             xgifb_info->hasVB == HASVB_301) {
 736                 reg = xgifb_reg_get(XGIPART4, 0x01);
 737
 738                 if (reg < 0xB0) { /* Set filter for XGI301 */
 739                         int filter_tb;
 740
 741                         switch (xgifb_info->video_width) {
 742                         case 320:
 743                                 filter_tb = (xgifb_info->TV_type ==
 744                                              TVMODE_NTSC) ? 4 : 12;
 745                                 break;
 746                         case 640:
 747                                 filter_tb = (xgifb_info->TV_type ==
 748                                              TVMODE_NTSC) ? 5 : 13;
 749                                 break;
 750                         case 720:
 751                                 filter_tb = (xgifb_info->TV_type ==
 752                                              TVMODE_NTSC) ? 6 : 14;
 753                                 break;
 754                         case 800:
 755                                 filter_tb = (xgifb_info->TV_type ==
 756                                              TVMODE_NTSC) ? 7 : 15;
 757                                 break;
 758                         default:
 759                                 filter_tb = 0;
 760                                 filter = -1;
 761                                 break;
 762                         }
 763                         xgifb_reg_or(XGIPART1,
 764                                      SIS_CRT2_WENABLE_315,
 765                                      0x01);
 766
 767                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 768                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 769
 770                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 771                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 772
 773                                 } else if (xgifb_info->TV_plug
 774                                                 == TVPLUG_COMPOSITE) {
 775                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 776
 777                                         switch (xgifb_info->video_width) {
 778                                         case 640:
 779                                                 xgifb_reg_set(XGIPART2,
 780                                                               0x35,
 781                                                               0xEB);
 782                                                 xgifb_reg_set(XGIPART2,
 783                                                               0x36,
 784                                                               0x04);
 785                                                 xgifb_reg_set(XGIPART2,
 786                                                               0x37,
 787                                                               0x25);
 788                                                 xgifb_reg_set(XGIPART2,
 789                                                               0x38,
 790                                                               0x18);
 791                                                 break;
 792                                         case 720:
 793                                                 xgifb_reg_set(XGIPART2,
 794                                                               0x35,
 795                                                               0xEE);
 796                                                 xgifb_reg_set(XGIPART2,
 797                                                               0x36,
 798                                                               0x0C);
 799                                                 xgifb_reg_set(XGIPART2,
 800                                                               0x37,
 801                                                               0x22);
 802                                                 xgifb_reg_set(XGIPART2,
 803                                                               0x38,
 804                                                               0x08);
 805                                                 break;
 806                                         case 800:
 807                                                 xgifb_reg_set(XGIPART2,
 808                                                               0x35,
 809                                                               0xEB);
 810                                                 xgifb_reg_set(XGIPART2,
 811                                                               0x36,
 812                                                               0x15);
 813                                                 xgifb_reg_set(XGIPART2,
 814                                                               0x37,
 815                                                               0x25);
 816                                                 xgifb_reg_set(XGIPART2,
 817                                                               0x38,
 818                                                               0xF6);
 819                                                 break;
 820                                         }
 821                                 }
 822
 823                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 824                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 825
 826                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 827                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 828
 829                                 } else if (xgifb_info->TV_plug
 830                                                 == TVPLUG_COMPOSITE) {
 831                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 832
 833                                         switch (xgifb_info->video_width) {
 834                                         case 640:
 835                                                 xgifb_reg_set(XGIPART2,
 836                                                               0x35,
 837                                                               0xF1);
 838                                                 xgifb_reg_set(XGIPART2,
 839                                                               0x36,
 840                                                               0xF7);
 841                                                 xgifb_reg_set(XGIPART2,
 842                                                               0x37,
 843                                                               0x1F);
 844                                                 xgifb_reg_set(XGIPART2,
 845                                                               0x38,
 846                                                               0x32);
 847                                                 break;
 848                                         case 720:
 849                                                 xgifb_reg_set(XGIPART2,
 850                                                               0x35,
 851                                                               0xF3);
 852                                                 xgifb_reg_set(XGIPART2,
 853                                                               0x36,
 854                                                               0x00);
 855                                                 xgifb_reg_set(XGIPART2,
 856                                                               0x37,
 857                                                               0x1D);
 858                                                 xgifb_reg_set(XGIPART2,
 859                                                               0x38,
 860                                                               0x20);
 861                                                 break;
 862                                         case 800:
 863                                                 xgifb_reg_set(XGIPART2,
 864                                                               0x35,
 865                                                               0xFC);
 866                                                 xgifb_reg_set(XGIPART2,
 867                                                               0x36,
 868                                                               0xFB);
 869                                                 xgifb_reg_set(XGIPART2,
 870                                                               0x37,
 871                                                               0x14);
 872                                                 xgifb_reg_set(XGIPART2,
 873                                                               0x38,
 874                                                               0x2A);
 875                                                 break;
 876                                         }
 877                                 }
 878                         }
 879
 880                         if ((filter >= 0) && (filter <= 7)) {
 881                                 const u8 *f = XGI_TV_filter[filter_tb].filter[filter];
 882
 883                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 884                                          filter_tb, filter, 4, f);
 885                                 xgifb_reg_set(XGIPART2, 0x35, f[0]);
 886                                 xgifb_reg_set(XGIPART2, 0x36, f[1]);
 887                                 xgifb_reg_set(XGIPART2, 0x37, f[2]);
 888                                 xgifb_reg_set(XGIPART2, 0x38, f[3]);
 889                         }
 890                 }
 891         }
 892 }
 893
 894 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 895                             struct fb_info *info)
 896 {
 897         struct xgifb_video_info *xgifb_info = info->par;
 898         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 899         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 900                         + var->hsync_len;
 901         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 902                         + var->vsync_len;
 903 #if defined(__BIG_ENDIAN)
 904         u8 cr_data;
 905 #endif
 906         unsigned int drate = 0, hrate = 0;
 907         int found_mode = 0;
 908         int old_mode;
 909
 910         info->var.xres_virtual = var->xres_virtual;
 911         info->var.yres_virtual = var->yres_virtual;
 912         info->var.bits_per_pixel = var->bits_per_pixel;
 913
 914         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 915                 vtotal <<= 1;
 916         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 917                 vtotal <<= 2;
 918
 919         if (!htotal || !vtotal) {
 920                 pr_debug("Invalid 'var' information\n");
 921                 return -EINVAL;
 922         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 923                         var->pixclock, htotal, vtotal);
 924
 925         if (var->pixclock) {
 926                 drate = 1000000000 / var->pixclock;
 927                 hrate = (drate * 1000) / htotal;
 928                 xgifb_info->refresh_rate = (unsigned int)(hrate * 2
 929                                 / vtotal);
 930         } else {
 931                 xgifb_info->refresh_rate = 60;
 932         }
 933
 934         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 935                  var->xres, var->yres, var->bits_per_pixel,
 936                  xgifb_info->refresh_rate);
 937
 938         old_mode = xgifb_info->mode_idx;
 939         xgifb_info->mode_idx = 0;
 940
 941         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
 942                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
 943                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
 944                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
 945                     (XGIbios_mode[xgifb_info->mode_idx].bpp
 946                                                 == var->bits_per_pixel)) {
 947                         found_mode = 1;
 948                         break;
 949                 }
 950                 xgifb_info->mode_idx++;
 951         }
 952
 953         if (found_mode)
 954                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
 955                                                         xgifb_info->mode_idx);
 956         else
 957                 xgifb_info->mode_idx = -1;
 958
 959         if (xgifb_info->mode_idx < 0) {
 960                 pr_err("Mode %dx%dx%d not supported\n",
 961                        var->xres, var->yres, var->bits_per_pixel);
 962                 xgifb_info->mode_idx = old_mode;
 963                 return -EINVAL;
 964         }
 965
 966         if (XGIfb_search_refresh_rate(xgifb_info,
 967                                       xgifb_info->refresh_rate) == 0) {
 968                 xgifb_info->rate_idx = 1;
 969                 xgifb_info->refresh_rate = 60;
 970         }
 971
 972         if (isactive) {
 973                 XGIfb_pre_setmode(xgifb_info);
 974                 if (XGISetModeNew(xgifb_info, hw_info,
 975                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
 976                                         == 0) {
 977                         pr_err("Setting mode[0x%x] failed\n",
 978                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
 979                         return -EINVAL;
 980                 }
 981                 info->fix.line_length = (info->var.xres_virtual
 982                                 * info->var.bits_per_pixel) >> 6;
 983
 984                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
 985
 986                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
 987                 xgifb_reg_set(XGISR,
 988                               0x0E,
 989                               (info->fix.line_length & 0xff00) >> 8);
 990
 991                 XGIfb_post_setmode(xgifb_info);
 992
 993                 pr_debug("Set new mode: %dx%dx%d-%d\n",
 994                          XGIbios_mode[xgifb_info->mode_idx].xres,
 995                          XGIbios_mode[xgifb_info->mode_idx].yres,
 996                          XGIbios_mode[xgifb_info->mode_idx].bpp,
 997                          xgifb_info->refresh_rate);
 998
 999                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1000                 xgifb_info->video_vwidth = info->var.xres_virtual;
1001                 xgifb_info->video_width =
1002                         XGIbios_mode[xgifb_info->mode_idx].xres;
1003                 xgifb_info->video_vheight = info->var.yres_virtual;
1004                 xgifb_info->video_height =
1005                         XGIbios_mode[xgifb_info->mode_idx].yres;
1006                 xgifb_info->org_x = 0;
1007                 xgifb_info->org_y = 0;
1008                 xgifb_info->video_linelength = info->var.xres_virtual
1009                                 * (xgifb_info->video_bpp >> 3);
1010                 switch (xgifb_info->video_bpp) {
1011                 case 8:
1012                         xgifb_info->DstColor = 0x0000;
1013                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1014                         xgifb_info->video_cmap_len = 256;
1015 #if defined(__BIG_ENDIAN)
1016                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1017                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1018 #endif
1019                         break;
1020                 case 16:
1021                         xgifb_info->DstColor = 0x8000;
1022                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1023 #if defined(__BIG_ENDIAN)
1024                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1025                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1026 #endif
1027                         xgifb_info->video_cmap_len = 16;
1028                         break;
1029                 case 32:
1030                         xgifb_info->DstColor = 0xC000;
1031                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1032                         xgifb_info->video_cmap_len = 16;
1033 #if defined(__BIG_ENDIAN)
1034                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1035                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1036 #endif
1037                         break;
1038                 default:
1039                         xgifb_info->video_cmap_len = 16;
1040                         pr_err("Unsupported depth %d\n",
1041                                xgifb_info->video_bpp);
1042                         break;
1043                 }
1044         }
1045         XGIfb_bpp_to_var(xgifb_info, var); /* update ARGB info */
1046
1047         dumpVGAReg(xgifb_info);
1048         return 0;
1049 }
1050
1051 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1052 {
1053         struct xgifb_video_info *xgifb_info = info->par;
1054         unsigned int base;
1055
1056         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1057
1058         /* calculate base bpp dep. */
1059         switch (info->var.bits_per_pixel) {
1060         case 16:
1061                 base >>= 1;
1062                 break;
1063         case 32:
1064                 break;
1065         case 8:
1066         default:
1067                 base >>= 2;
1068                 break;
1069         }
1070
1071         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1072
1073         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1074         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1075         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1076         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1077         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1078
1079         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1080                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1081                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1082                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1083                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1084                 xgifb_reg_and_or(XGIPART1,
1085                                  0x02,
1086                                  0x7F,
1087                                  ((base >> 24) & 0x01) << 7);
1088         }
1089         return 0;
1090 }
1091
1092 static int XGIfb_open(struct fb_info *info, int user)
1093 {
1094         return 0;
1095 }
1096
1097 static int XGIfb_release(struct fb_info *info, int user)
1098 {
1099         return 0;
1100 }
1101
1102 /* similar to sisfb_get_cmap_len */
1103 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1104 {
1105         return (var->bits_per_pixel == 8) ? 256 : 16;
1106 }
1107
1108 static int XGIfb_setcolreg(unsigned int regno, unsigned int red,
1109                            unsigned int green, unsigned int blue,
1110                            unsigned int transp, struct fb_info *info)
1111 {
1112         struct xgifb_video_info *xgifb_info = info->par;
1113
1114         if (regno >= XGIfb_get_cmap_len(&info->var))
1115                 return 1;
1116
1117         switch (info->var.bits_per_pixel) {
1118         case 8:
1119                 outb(regno, XGIDACA);
1120                 outb((red >> 10), XGIDACD);
1121                 outb((green >> 10), XGIDACD);
1122                 outb((blue >> 10), XGIDACD);
1123                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1124                         outb(regno, XGIDAC2A);
1125                         outb((red >> 8), XGIDAC2D);
1126                         outb((green >> 8), XGIDAC2D);
1127                         outb((blue >> 8), XGIDAC2D);
1128                 }
1129                 break;
1130         case 16:
1131                 ((u32 *)(info->pseudo_palette))[regno] = ((red & 0xf800))
1132                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1133                                 >> 11);
1134                 break;
1135         case 32:
1136                 red >>= 8;
1137                 green >>= 8;
1138                 blue >>= 8;
1139                 ((u32 *)(info->pseudo_palette))[regno] = (red << 16) | (green
1140                                 << 8) | (blue);
1141                 break;
1142         }
1143         return 0;
1144 }
1145
1146 /* ----------- FBDev related routines for all series ---------- */
1147
1148 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1149                          struct fb_info *info)
1150 {
1151         struct xgifb_video_info *xgifb_info = info->par;
1152
1153         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1154
1155         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1156
1157         /* if register_framebuffer has been called, we must lock */
1158         if (atomic_read(&info->count))
1159                 mutex_lock(&info->mm_lock);
1160
1161         fix->smem_start = xgifb_info->video_base;
1162         fix->smem_len = xgifb_info->video_size;
1163
1164         /* if register_framebuffer has been called, we can unlock */
1165         if (atomic_read(&info->count))
1166                 mutex_unlock(&info->mm_lock);
1167
1168         fix->type = FB_TYPE_PACKED_PIXELS;
1169         fix->type_aux = 0;
1170         if (xgifb_info->video_bpp == 8)
1171                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1172         else
1173                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1174         fix->xpanstep = 0;
1175         if (XGIfb_ypan)
1176                 fix->ypanstep = 1;
1177         fix->ywrapstep = 0;
1178         fix->line_length = xgifb_info->video_linelength;
1179         fix->mmio_start = xgifb_info->mmio_base;
1180         fix->mmio_len = xgifb_info->mmio_size;
1181         fix->accel = FB_ACCEL_SIS_XABRE;
1182
1183         return 0;
1184 }
1185
1186 static int XGIfb_set_par(struct fb_info *info)
1187 {
1188         int err;
1189
1190         err = XGIfb_do_set_var(&info->var, 1, info);
1191         if (err)
1192                 return err;
1193         XGIfb_get_fix(&info->fix, -1, info);
1194         return 0;
1195 }
1196
1197 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1198 {
1199         struct xgifb_video_info *xgifb_info = info->par;
1200         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1201                         + var->hsync_len;
1202         unsigned int vtotal = 0;
1203         unsigned int drate = 0, hrate = 0;
1204         int found_mode = 0;
1205         int search_idx;
1206
1207         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1208                 vtotal = var->upper_margin + var->yres + var->lower_margin
1209                                 + var->vsync_len;
1210                 vtotal <<= 1;
1211         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1212                 vtotal = var->upper_margin + var->yres + var->lower_margin
1213                                 + var->vsync_len;
1214                 vtotal <<= 2;
1215         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1216                 vtotal = var->upper_margin + (var->yres / 2)
1217                                 + var->lower_margin + var->vsync_len;
1218         } else
1219                 vtotal = var->upper_margin + var->yres + var->lower_margin
1220                                 + var->vsync_len;
1221
1222         if (!(htotal) || !(vtotal)) {
1223                 pr_debug("No valid timing data\n");
1224                 return -EINVAL;
1225         }
1226
1227         if (var->pixclock && htotal && vtotal) {
1228                 drate = 1000000000 / var->pixclock;
1229                 hrate = (drate * 1000) / htotal;
1230                 xgifb_info->refresh_rate =
1231                         (unsigned int)(hrate * 2 / vtotal);
1232                 pr_debug(
1233                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1234                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1235                         __func__, var->pixclock, htotal, vtotal,
1236                         __func__, drate, hrate, xgifb_info->refresh_rate);
1237         } else {
1238                 xgifb_info->refresh_rate = 60;
1239         }
1240
1241         search_idx = 0;
1242         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1243                (XGIbios_mode[search_idx].xres <= var->xres)) {
1244                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1245                     (XGIbios_mode[search_idx].yres == var->yres) &&
1246                     (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1247                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1248                                 found_mode = 1;
1249                                 break;
1250                         }
1251                 }
1252                 search_idx++;
1253         }
1254
1255         if (!found_mode) {
1256                 pr_err("%dx%dx%d is no valid mode\n",
1257                        var->xres, var->yres, var->bits_per_pixel);
1258                 search_idx = 0;
1259                 while (XGIbios_mode[search_idx].mode_no != 0) {
1260                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1261                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1262                             (var->bits_per_pixel ==
1263                              XGIbios_mode[search_idx].bpp)) {
1264                                 if (XGIfb_validate_mode(xgifb_info,
1265                                                         search_idx) > 0) {
1266                                         found_mode = 1;
1267                                         break;
1268                                 }
1269                         }
1270                         search_idx++;
1271                 }
1272                 if (found_mode) {
1273                         var->xres = XGIbios_mode[search_idx].xres;
1274                         var->yres = XGIbios_mode[search_idx].yres;
1275                         pr_debug("Adapted to mode %dx%dx%d\n",
1276                                  var->xres, var->yres, var->bits_per_pixel);
1277
1278                 } else {
1279                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1280                                var->xres, var->yres, var->bits_per_pixel);
1281                         return -EINVAL;
1282                 }
1283         }
1284
1285         /* Adapt RGB settings */
1286         XGIfb_bpp_to_var(xgifb_info, var);
1287
1288         if (!XGIfb_ypan) {
1289                 if (var->xres != var->xres_virtual)
1290                         var->xres_virtual = var->xres;
1291                 if (var->yres != var->yres_virtual)
1292                         var->yres_virtual = var->yres;
1293         }
1294
1295         /* Truncate offsets to maximum if too high */
1296         if (var->xoffset > var->xres_virtual - var->xres)
1297                 var->xoffset = var->xres_virtual - var->xres - 1;
1298
1299         if (var->yoffset > var->yres_virtual - var->yres)
1300                 var->yoffset = var->yres_virtual - var->yres - 1;
1301
1302         /* Set everything else to 0 */
1303         var->red.msb_right = 0;
1304         var->green.msb_right = 0;
1305         var->blue.msb_right = 0;
1306         var->transp.offset = 0;
1307         var->transp.length = 0;
1308         var->transp.msb_right = 0;
1309
1310         return 0;
1311 }
1312
1313 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1314                              struct fb_info *info)
1315 {
1316         int err;
1317
1318         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1319                 return -EINVAL;
1320         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1321                 return -EINVAL;
1322
1323         if (var->vmode & FB_VMODE_YWRAP) {
1324                 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1325                         return -EINVAL;
1326         } else if (var->xoffset + info->var.xres > info->var.xres_virtual ||
1327                    var->yoffset + info->var.yres > info->var.yres_virtual) {
1328                 return -EINVAL;
1329         }
1330         err = XGIfb_pan_var(var, info);
1331         if (err < 0)
1332                 return err;
1333
1334         info->var.xoffset = var->xoffset;
1335         info->var.yoffset = var->yoffset;
1336         if (var->vmode & FB_VMODE_YWRAP)
1337                 info->var.vmode |= FB_VMODE_YWRAP;
1338         else
1339                 info->var.vmode &= ~FB_VMODE_YWRAP;
1340
1341         return 0;
1342 }
1343
1344 static int XGIfb_blank(int blank, struct fb_info *info)
1345 {
1346         struct xgifb_video_info *xgifb_info = info->par;
1347         u8 reg;
1348
1349         reg = xgifb_reg_get(XGICR, 0x17);
1350
1351         if (blank > 0)
1352                 reg &= 0x7f;
1353         else
1354                 reg |= 0x80;
1355
1356         xgifb_reg_set(XGICR, 0x17, reg);
1357         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1358         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1359         return 0;
1360 }
1361
1362 static struct fb_ops XGIfb_ops = {
1363         .owner = THIS_MODULE,
1364         .fb_open = XGIfb_open,
1365         .fb_release = XGIfb_release,
1366         .fb_check_var = XGIfb_check_var,
1367         .fb_set_par = XGIfb_set_par,
1368         .fb_setcolreg = XGIfb_setcolreg,
1369         .fb_pan_display = XGIfb_pan_display,
1370         .fb_blank = XGIfb_blank,
1371         .fb_fillrect = cfb_fillrect,
1372         .fb_copyarea = cfb_copyarea,
1373         .fb_imageblit = cfb_imageblit,
1374 };
1375
1376 /* ---------------- Chip generation dependent routines ---------------- */
1377
1378 /* for XGI 315/550/650/740/330 */
1379
1380 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1381 {
1382         u8 ChannelNum, tmp;
1383         u8 reg = 0;
1384
1385         /* xorg driver sets 32MB * 1 channel */
1386         if (xgifb_info->chip == XG27)
1387                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1388
1389         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1390         if (!reg)
1391                 return -1;
1392
1393         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1394         case XGI_DRAM_SIZE_1MB:
1395                 xgifb_info->video_size = 0x100000;
1396                 break;
1397         case XGI_DRAM_SIZE_2MB:
1398                 xgifb_info->video_size = 0x200000;
1399                 break;
1400         case XGI_DRAM_SIZE_4MB:
1401                 xgifb_info->video_size = 0x400000;
1402                 break;
1403         case XGI_DRAM_SIZE_8MB:
1404                 xgifb_info->video_size = 0x800000;
1405                 break;
1406         case XGI_DRAM_SIZE_16MB:
1407                 xgifb_info->video_size = 0x1000000;
1408                 break;
1409         case XGI_DRAM_SIZE_32MB:
1410                 xgifb_info->video_size = 0x2000000;
1411                 break;
1412         case XGI_DRAM_SIZE_64MB:
1413                 xgifb_info->video_size = 0x4000000;
1414                 break;
1415         case XGI_DRAM_SIZE_128MB:
1416                 xgifb_info->video_size = 0x8000000;
1417                 break;
1418         case XGI_DRAM_SIZE_256MB:
1419                 xgifb_info->video_size = 0x10000000;
1420                 break;
1421         default:
1422                 return -1;
1423         }
1424
1425         tmp = (reg & 0x0c) >> 2;
1426         switch (xgifb_info->chip) {
1427         case XG20:
1428         case XG21:
1429         case XG27:
1430                 ChannelNum = 1;
1431                 break;
1432
1433         case XG42:
1434                 if (reg & 0x04)
1435                         ChannelNum = 2;
1436                 else
1437                         ChannelNum = 1;
1438                 break;
1439
1440         case XG40:
1441         default:
1442                 if (tmp == 2)
1443                         ChannelNum = 2;
1444                 else if (tmp == 3)
1445                         ChannelNum = 3;
1446                 else
1447                         ChannelNum = 1;
1448                 break;
1449         }
1450
1451         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1452
1453         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1454                 reg, xgifb_info->video_size, ChannelNum);
1455         return 0;
1456 }
1457
1458 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1459 {
1460         u8 cr32, temp = 0;
1461
1462         xgifb_info->TV_plug = 0;
1463         xgifb_info->TV_type = 0;
1464
1465         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1466
1467         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off) {
1468                 XGIfb_crt1off = 0;
1469         } else {
1470                 if (cr32 & 0x5F)
1471                         XGIfb_crt1off = 1;
1472                 else
1473                         XGIfb_crt1off = 0;
1474         }
1475
1476         if (!xgifb_info->display2_force) {
1477                 if (cr32 & SIS_VB_TV)
1478                         xgifb_info->display2 = XGIFB_DISP_TV;
1479                 else if (cr32 & SIS_VB_LCD)
1480                         xgifb_info->display2 = XGIFB_DISP_LCD;
1481                 else if (cr32 & SIS_VB_CRT2)
1482                         xgifb_info->display2 = XGIFB_DISP_CRT;
1483                 else
1484                         xgifb_info->display2 = XGIFB_DISP_NONE;
1485         }
1486
1487         if (XGIfb_tvplug != -1) {
1488                 /* Override with option */
1489                 xgifb_info->TV_plug = XGIfb_tvplug;
1490         } else if (cr32 & SIS_VB_HIVISION) {
1491                 xgifb_info->TV_type = TVMODE_HIVISION;
1492                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1493         } else if (cr32 & SIS_VB_SVIDEO) {
1494                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1495         } else if (cr32 & SIS_VB_COMPOSITE) {
1496                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1497         } else if (cr32 & SIS_VB_SCART) {
1498                 xgifb_info->TV_plug = TVPLUG_SCART;
1499         }
1500
1501         if (xgifb_info->TV_type == 0) {
1502                 temp = xgifb_reg_get(XGICR, 0x38);
1503                 if (temp & 0x10)
1504                         xgifb_info->TV_type = TVMODE_PAL;
1505                 else
1506                         xgifb_info->TV_type = TVMODE_NTSC;
1507         }
1508
1509         /* Copy forceCRT1 option to CRT1off if option is given */
1510         if (XGIfb_forcecrt1 != -1) {
1511                 if (XGIfb_forcecrt1)
1512                         XGIfb_crt1off = 0;
1513                 else
1514                         XGIfb_crt1off = 1;
1515         }
1516 }
1517
1518 static bool XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1519 {
1520         u8 vb_chipid;
1521
1522         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1523         switch (vb_chipid) {
1524         case 0x01:
1525                 xgifb_info->hasVB = HASVB_301;
1526                 break;
1527         case 0x02:
1528                 xgifb_info->hasVB = HASVB_302;
1529                 break;
1530         default:
1531                 xgifb_info->hasVB = HASVB_NONE;
1532                 return false;
1533         }
1534         return true;
1535 }
1536
1537 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1538 {
1539         u8 reg;
1540
1541         if (!XGIfb_has_VB(xgifb_info)) {
1542                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1543                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1544                 case SIS_EXTERNAL_CHIP_LVDS:
1545                         xgifb_info->hasVB = HASVB_LVDS;
1546                         break;
1547                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1548                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1549                         break;
1550                 default:
1551                         break;
1552                 }
1553         }
1554 }
1555
1556 static int __init xgifb_optval(char *fullopt, int validx)
1557 {
1558         unsigned long lres;
1559
1560         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1561                 pr_err("Invalid value for option: %s\n", fullopt);
1562                 return 0;
1563         }
1564         return lres;
1565 }
1566
1567 static int __init XGIfb_setup(char *options)
1568 {
1569         char *this_opt;
1570
1571         if (!options || !*options)
1572                 return 0;
1573
1574         pr_info("Options: %s\n", options);
1575
1576         while ((this_opt = strsep(&options, ",")) != NULL) {
1577                 if (!*this_opt)
1578                         continue;
1579
1580                 if (!strncmp(this_opt, "mode:", 5)) {
1581                         mode = this_opt + 5;
1582                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1583                         vesa = xgifb_optval(this_opt, 5);
1584                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1585                         refresh_rate = xgifb_optval(this_opt, 6);
1586                 } else if (!strncmp(this_opt, "rate:", 5)) {
1587                         refresh_rate = xgifb_optval(this_opt, 5);
1588                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1589                         XGIfb_crt1off = 1;
1590                 } else if (!strncmp(this_opt, "filter:", 7)) {
1591                         filter = xgifb_optval(this_opt, 7);
1592                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1593                         XGIfb_search_crt2type(this_opt + 14);
1594                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1595                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1596                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1597                         XGIfb_search_tvstd(this_opt + 7);
1598                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1599                         XGIfb_search_tvstd(this_opt + 7);
1600                 } else if (!strncmp(this_opt, "dstn", 4)) {
1601                         enable_dstn = 1;
1602                         /* DSTN overrules forcecrt2type */
1603                         XGIfb_crt2type = XGIFB_DISP_LCD;
1604                 } else if (!strncmp(this_opt, "noypan", 6)) {
1605                         XGIfb_ypan = 0;
1606                 } else {
1607                         mode = this_opt;
1608                 }
1609         }
1610         return 0;
1611 }
1612
1613 static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1614 {
1615         u8 reg, reg1;
1616         u8 CR48, CR38;
1617         int ret;
1618         struct fb_info *fb_info;
1619         struct xgifb_video_info *xgifb_info;
1620         struct xgi_hw_device_info *hw_info;
1621         unsigned long video_size_max;
1622
1623         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1624         if (!fb_info)
1625                 return -ENOMEM;
1626
1627         xgifb_info = fb_info->par;
1628         hw_info = &xgifb_info->hw_info;
1629         xgifb_info->fb_info = fb_info;
1630         xgifb_info->chip_id = pdev->device;
1631         pci_read_config_byte(pdev,
1632                              PCI_REVISION_ID,
1633                              &xgifb_info->revision_id);
1634         hw_info->jChipRevision = xgifb_info->revision_id;
1635
1636         xgifb_info->pcibus = pdev->bus->number;
1637         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1638         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1639         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1640         xgifb_info->subsysdevice = pdev->subsystem_device;
1641
1642         video_size_max = pci_resource_len(pdev, 0);
1643         xgifb_info->video_base = pci_resource_start(pdev, 0);
1644         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1645         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1646         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1647         dev_info(&pdev->dev, "Relocate IO address: %llx [%08lx]\n",
1648                  (u64)pci_resource_start(pdev, 2),
1649                  xgifb_info->vga_base);
1650
1651         if (pci_enable_device(pdev)) {
1652                 ret = -EIO;
1653                 goto error;
1654         }
1655
1656         if (XGIfb_crt2type != -1) {
1657                 xgifb_info->display2 = XGIfb_crt2type;
1658                 xgifb_info->display2_force = true;
1659         }
1660
1661         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1662
1663         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1664         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1665
1666         if (reg1 != 0xa1) { /* I/O error */
1667                 dev_err(&pdev->dev, "I/O error\n");
1668                 ret = -EIO;
1669                 goto error_disable;
1670         }
1671
1672         switch (xgifb_info->chip_id) {
1673         case PCI_DEVICE_ID_XGI_20:
1674                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1675                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1676                 if (CR48 & GPIOG_READ)
1677                         xgifb_info->chip = XG21;
1678                 else
1679                         xgifb_info->chip = XG20;
1680                 break;
1681         case PCI_DEVICE_ID_XGI_40:
1682                 xgifb_info->chip = XG40;
1683                 break;
1684         case PCI_DEVICE_ID_XGI_42:
1685                 xgifb_info->chip = XG42;
1686                 break;
1687         case PCI_DEVICE_ID_XGI_27:
1688                 xgifb_info->chip = XG27;
1689                 break;
1690         default:
1691                 ret = -ENODEV;
1692                 goto error_disable;
1693         }
1694
1695         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1696         hw_info->jChipType = xgifb_info->chip;
1697
1698         if (XGIfb_get_dram_size(xgifb_info)) {
1699                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1700                                                 SZ_16M);
1701         } else if (xgifb_info->video_size > video_size_max) {
1702                 xgifb_info->video_size = video_size_max;
1703         }
1704
1705         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE */
1706         xgifb_reg_or(XGISR,
1707                      IND_SIS_PCI_ADDRESS_SET,
1708                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1709         /* Enable 2D accelerator engine */
1710         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1711
1712         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1713
1714         if (!request_mem_region(xgifb_info->video_base,
1715                                 xgifb_info->video_size,
1716                                 "XGIfb FB")) {
1717                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1718                         xgifb_info->video_size);
1719                 dev_err(&pdev->dev,
1720                         "Fatal error: Unable to reserve frame buffer memory. Is there another framebuffer driver active?\n");
1721                 ret = -ENODEV;
1722                 goto error_disable;
1723         }
1724
1725         if (!request_mem_region(xgifb_info->mmio_base,
1726                                 xgifb_info->mmio_size,
1727                                 "XGIfb MMIO")) {
1728                 dev_err(&pdev->dev,
1729                         "Fatal error: Unable to reserve MMIO region\n");
1730                 ret = -ENODEV;
1731                 goto error_0;
1732         }
1733
1734         xgifb_info->video_vbase =
1735                 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1736         hw_info->pjVideoMemoryAddress =
1737                 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1738         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1739                                             xgifb_info->mmio_size);
1740
1741         dev_info(&pdev->dev,
1742                  "Framebuffer at 0x%llx, mapped to 0x%p, size %dk\n",
1743                  (u64)xgifb_info->video_base,
1744                  xgifb_info->video_vbase,
1745                  xgifb_info->video_size / 1024);
1746
1747         dev_info(&pdev->dev,
1748                  "MMIO at 0x%llx, mapped to 0x%p, size %ldk\n",
1749                  (u64)xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1750                  xgifb_info->mmio_size / 1024);
1751
1752         pci_set_drvdata(pdev, xgifb_info);
1753         if (!XGIInitNew(pdev))
1754                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1755
1756         xgifb_info->mtrr = -1;
1757
1758         xgifb_info->hasVB = HASVB_NONE;
1759         if ((xgifb_info->chip == XG20) ||
1760             (xgifb_info->chip == XG27)) {
1761                 xgifb_info->hasVB = HASVB_NONE;
1762         } else if (xgifb_info->chip == XG21) {
1763                 CR38 = xgifb_reg_get(XGICR, 0x38);
1764                 if ((CR38 & 0xE0) == 0xC0)
1765                         xgifb_info->display2 = XGIFB_DISP_LCD;
1766                 else if ((CR38 & 0xE0) == 0x60)
1767                         xgifb_info->hasVB = HASVB_CHRONTEL;
1768                 else
1769                         xgifb_info->hasVB = HASVB_NONE;
1770         } else {
1771                 XGIfb_get_VB_type(xgifb_info);
1772         }
1773
1774         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1775
1776         hw_info->ulExternalChip = 0;
1777
1778         switch (xgifb_info->hasVB) {
1779         case HASVB_301:
1780                 reg = xgifb_reg_get(XGIPART4, 0x01);
1781                 if (reg >= 0xE0) {
1782                         hw_info->ujVBChipID = VB_CHIP_302LV;
1783                         dev_info(&pdev->dev,
1784                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1785                                  reg);
1786                 } else if (reg >= 0xD0) {
1787                         hw_info->ujVBChipID = VB_CHIP_301LV;
1788                         dev_info(&pdev->dev,
1789                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1790                                  reg);
1791                 } else {
1792                         hw_info->ujVBChipID = VB_CHIP_301;
1793                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1794                 }
1795                 break;
1796         case HASVB_302:
1797                 reg = xgifb_reg_get(XGIPART4, 0x01);
1798                 if (reg >= 0xE0) {
1799                         hw_info->ujVBChipID = VB_CHIP_302LV;
1800                         dev_info(&pdev->dev,
1801                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1802                                  reg);
1803                 } else if (reg >= 0xD0) {
1804                         hw_info->ujVBChipID = VB_CHIP_301LV;
1805                         dev_info(&pdev->dev,
1806                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1807                                  reg);
1808                 } else if (reg >= 0xB0) {
1809                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1810
1811                         hw_info->ujVBChipID = VB_CHIP_302B;
1812
1813                 } else {
1814                         hw_info->ujVBChipID = VB_CHIP_302;
1815                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1816                 }
1817                 break;
1818         case HASVB_LVDS:
1819                 hw_info->ulExternalChip = 0x1;
1820                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1821                 break;
1822         case HASVB_TRUMPION:
1823                 hw_info->ulExternalChip = 0x2;
1824                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1825                 break;
1826         case HASVB_CHRONTEL:
1827                 hw_info->ulExternalChip = 0x4;
1828                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1829                 break;
1830         case HASVB_LVDS_CHRONTEL:
1831                 hw_info->ulExternalChip = 0x5;
1832                 dev_info(&pdev->dev,
1833                          "LVDS transmitter and Chrontel TV encoder detected\n");
1834                 break;
1835         default:
1836                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1837                 break;
1838         }
1839
1840         if (xgifb_info->hasVB != HASVB_NONE)
1841                 XGIfb_detect_VB(xgifb_info);
1842         else if (xgifb_info->chip != XG21)
1843                 xgifb_info->display2 = XGIFB_DISP_NONE;
1844
1845         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1846                 if (!enable_dstn) {
1847                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1848                         reg &= 0x0f;
1849                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1850                 }
1851         }
1852
1853         xgifb_info->mode_idx = -1;
1854
1855         if (mode)
1856                 XGIfb_search_mode(xgifb_info, mode);
1857         else if (vesa != -1)
1858                 XGIfb_search_vesamode(xgifb_info, vesa);
1859
1860         if (xgifb_info->mode_idx >= 0)
1861                 xgifb_info->mode_idx =
1862                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1863
1864         if (xgifb_info->mode_idx < 0) {
1865                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1866                     xgifb_info->chip == XG21)
1867                         xgifb_info->mode_idx =
1868                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1869                 else
1870                         xgifb_info->mode_idx = DEFAULT_MODE;
1871         }
1872
1873         if (xgifb_info->mode_idx < 0) {
1874                 dev_err(&pdev->dev, "No supported video mode found\n");
1875                 ret = -EINVAL;
1876                 goto error_1;
1877         }
1878
1879         /* set default refresh rate */
1880         xgifb_info->refresh_rate = refresh_rate;
1881         if (xgifb_info->refresh_rate == 0)
1882                 xgifb_info->refresh_rate = 60;
1883         if (XGIfb_search_refresh_rate(xgifb_info, xgifb_info->refresh_rate) == 0) {
1884                 xgifb_info->rate_idx = 1;
1885                 xgifb_info->refresh_rate = 60;
1886         }
1887
1888         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1889         xgifb_info->video_vwidth =
1890                 xgifb_info->video_width =
1891                         XGIbios_mode[xgifb_info->mode_idx].xres;
1892         xgifb_info->video_vheight =
1893                 xgifb_info->video_height =
1894                         XGIbios_mode[xgifb_info->mode_idx].yres;
1895         xgifb_info->org_x = 0;
1896         xgifb_info->org_y = 0;
1897         xgifb_info->video_linelength =
1898                 xgifb_info->video_width *
1899                 (xgifb_info->video_bpp >> 3);
1900         switch (xgifb_info->video_bpp) {
1901         case 8:
1902                 xgifb_info->DstColor = 0x0000;
1903                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1904                 xgifb_info->video_cmap_len = 256;
1905                 break;
1906         case 16:
1907                 xgifb_info->DstColor = 0x8000;
1908                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1909                 xgifb_info->video_cmap_len = 16;
1910                 break;
1911         case 32:
1912                 xgifb_info->DstColor = 0xC000;
1913                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1914                 xgifb_info->video_cmap_len = 16;
1915                 break;
1916         default:
1917                 xgifb_info->video_cmap_len = 16;
1918                 pr_info("Unsupported depth %d\n",
1919                         xgifb_info->video_bpp);
1920                 break;
1921         }
1922
1923         pr_info("Default mode is %dx%dx%d (%dHz)\n",
1924                 xgifb_info->video_width, xgifb_info->video_height,
1925                 xgifb_info->video_bpp, xgifb_info->refresh_rate);
1926
1927         fb_info->var.red.length         = 8;
1928         fb_info->var.green.length       = 8;
1929         fb_info->var.blue.length        = 8;
1930         fb_info->var.activate           = FB_ACTIVATE_NOW;
1931         fb_info->var.height             = -1;
1932         fb_info->var.width              = -1;
1933         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
1934         fb_info->var.xres               = xgifb_info->video_width;
1935         fb_info->var.xres_virtual       = xgifb_info->video_width;
1936         fb_info->var.yres               = xgifb_info->video_height;
1937         fb_info->var.yres_virtual       = xgifb_info->video_height;
1938         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
1939
1940         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1941
1942         fb_info->var.pixclock = (u32)(1000000000 / XGIfb_mode_rate_to_dclock
1943                                       (&xgifb_info->dev_info, hw_info,
1944                                        XGIbios_mode[xgifb_info->mode_idx].mode_no));
1945
1946         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info,
1947                                      hw_info, XGIbios_mode[xgifb_info->mode_idx].mode_no,
1948                                      &fb_info->var.left_margin,
1949                                      &fb_info->var.right_margin,
1950                                      &fb_info->var.upper_margin,
1951                                      &fb_info->var.lower_margin,
1952                                      &fb_info->var.hsync_len,
1953                                      &fb_info->var.vsync_len,
1954                                      &fb_info->var.sync,
1955                                      &fb_info->var.vmode)) {
1956                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1957                     FB_VMODE_INTERLACED) {
1958                         fb_info->var.yres <<= 1;
1959                         fb_info->var.yres_virtual <<= 1;
1960                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1961                            FB_VMODE_DOUBLE) {
1962                         fb_info->var.pixclock >>= 1;
1963                         fb_info->var.yres >>= 1;
1964                         fb_info->var.yres_virtual >>= 1;
1965                 }
1966         }
1967
1968         fb_info->flags = FBINFO_FLAG_DEFAULT;
1969         fb_info->screen_base = xgifb_info->video_vbase;
1970         fb_info->fbops = &XGIfb_ops;
1971         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
1972         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
1973
1974         fb_alloc_cmap(&fb_info->cmap, 256, 0);
1975
1976         xgifb_info->mtrr = arch_phys_wc_add(xgifb_info->video_base,
1977                                             xgifb_info->video_size);
1978
1979         if (register_framebuffer(fb_info) < 0) {
1980                 ret = -EINVAL;
1981                 goto error_mtrr;
1982         }
1983
1984         dumpVGAReg(xgifb_info);
1985
1986         return 0;
1987
1988 error_mtrr:
1989         arch_phys_wc_del(xgifb_info->mtrr);
1990 error_1:
1991         iounmap(xgifb_info->mmio_vbase);
1992         iounmap(xgifb_info->video_vbase);
1993         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
1994 error_0:
1995         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
1996 error_disable:
1997         pci_disable_device(pdev);
1998 error:
1999         framebuffer_release(fb_info);
2000         return ret;
2001 }
2002
2003 /* -------------------- PCI DEVICE HANDLING -------------------- */
2004
2005 static void xgifb_remove(struct pci_dev *pdev)
2006 {
2007         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2008         struct fb_info *fb_info = xgifb_info->fb_info;
2009
2010         unregister_framebuffer(fb_info);
2011         arch_phys_wc_del(xgifb_info->mtrr);
2012         iounmap(xgifb_info->mmio_vbase);
2013         iounmap(xgifb_info->video_vbase);
2014         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2015         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2016         pci_disable_device(pdev);
2017         framebuffer_release(fb_info);
2018 }
2019
2020 static struct pci_driver xgifb_driver = {
2021         .name = "xgifb",
2022         .id_table = xgifb_pci_table,
2023         .probe = xgifb_probe,
2024         .remove = xgifb_remove
2025 };
2026
2027 /* -------------------- MODULE -------------------- */
2028
2029 module_param(mode, charp, 0000);
2030 MODULE_PARM_DESC(mode,
2031                  "Selects the desired default display mode in the format XxYxDepth (eg. 1024x768x16).");
2032
2033 module_param(forcecrt2type, charp, 0000);
2034 MODULE_PARM_DESC(forcecrt2type,
2035                  "Force the second display output type. Possible values are NONE, LCD, TV, VGA, SVIDEO or COMPOSITE.");
2036
2037 module_param(vesa, int, 0000);
2038 MODULE_PARM_DESC(vesa,
2039                  "Selects the desired default display mode by VESA mode number (eg. 0x117).");
2040
2041 module_param(filter, int, 0000);
2042 MODULE_PARM_DESC(filter,
2043                  "Selects TV flicker filter type (only for systems with a SiS301 video bridge). Possible values 0-7. Default: [no filter]).");
2044
2045 static int __init xgifb_init(void)
2046 {
2047         char *option = NULL;
2048
2049         if (forcecrt2type)
2050                 XGIfb_search_crt2type(forcecrt2type);
2051         if (fb_get_options("xgifb", &option))
2052                 return -ENODEV;
2053         XGIfb_setup(option);
2054
2055         return pci_register_driver(&xgifb_driver);
2056 }
2057
2058 static void __exit xgifb_remove_module(void)
2059 {
2060         pci_unregister_driver(&xgifb_driver);
2061         pr_debug("Module unloaded\n");
2062 }
2063
2064 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2065 MODULE_LICENSE("GPL");
2066 MODULE_AUTHOR("XGITECH , Others");
2067 module_init(xgifb_init);
2068 module_exit(xgifb_remove_module);