kernel/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         int Clock;
  66
  67         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  68
  69         XGI_SearchModeID(ModeNo, &ModeIdIndex);
  70
  71         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  72                         ModeIdIndex, XGI_Pr);
  73
  74         ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
  75
  76         Clock = XGI_VCLKData[ClockIndex].CLOCK * 1000;
  77
  78         return Clock;
  79 }
  80
  81 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
  82                 struct xgi_hw_device_info *HwDeviceExtension,
  83                 unsigned char modeno,
  84                 u32 *left_margin, u32 *right_margin, u32 *upper_margin,
  85                 u32 *lower_margin, u32 *hsync_len, u32 *vsync_len, u32 *sync,
  86                 u32 *vmode)
  87 {
  88         unsigned short ModeNo = modeno;
  89         unsigned short ModeIdIndex, index = 0;
  90         unsigned short RefreshRateTableIndex = 0;
  91
  92         unsigned short VRE, VBE, VRS, VDE;
  93         unsigned short HRE, HBE, HRS, HDE;
  94         unsigned char sr_data, cr_data, cr_data2;
  95         int B, C, D, F, temp, j;
  96
  97         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  98         if (!XGI_SearchModeID(ModeNo, &ModeIdIndex))
  99                 return 0;
 100         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 101                         ModeIdIndex, XGI_Pr);
 102         index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 103
 104         sr_data = XGI_CRT1Table[index].CR[5];
 105
 106         HDE = XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3;
 107
 108         cr_data = XGI_CRT1Table[index].CR[3];
 109
 110         /* Horizontal retrace (=sync) start */
 111         HRS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0xC0) << 2);
 112         F = HRS - HDE - 3;
 113
 114         sr_data = XGI_CRT1Table[index].CR[6];
 115
 116         cr_data = XGI_CRT1Table[index].CR[2];
 117
 118         cr_data2 = XGI_CRT1Table[index].CR[4];
 119
 120         /* Horizontal blank end */
 121         HBE = (cr_data & 0x1f) | ((unsigned short) (cr_data2 & 0x80) >> 2)
 122                         | ((unsigned short) (sr_data & 0x03) << 6);
 123
 124         /* Horizontal retrace (=sync) end */
 125         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 126
 127         temp = HBE - ((HDE - 1) & 255);
 128         B = (temp > 0) ? temp : (temp + 256);
 129
 130         temp = HRE - ((HDE + F + 3) & 63);
 131         C = (temp > 0) ? temp : (temp + 64);
 132
 133         D = B - F - C;
 134
 135         *left_margin = D * 8;
 136         *right_margin = F * 8;
 137         *hsync_len = C * 8;
 138
 139         sr_data = XGI_CRT1Table[index].CR[14];
 140
 141         cr_data2 = XGI_CRT1Table[index].CR[9];
 142
 143         VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes;
 144
 145         cr_data = XGI_CRT1Table[index].CR[10];
 146
 147         /* Vertical retrace (=sync) start */
 148         VRS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x04) << 6)
 149                         | ((unsigned short) (cr_data2 & 0x80) << 2)
 150                         | ((unsigned short) (sr_data & 0x08) << 7);
 151         F = VRS + 1 - VDE;
 152
 153         cr_data = XGI_CRT1Table[index].CR[13];
 154
 155         /* Vertical blank end */
 156         VBE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x10) << 4);
 157         temp = VBE - ((VDE - 1) & 511);
 158         B = (temp > 0) ? temp : (temp + 512);
 159
 160         cr_data = XGI_CRT1Table[index].CR[11];
 161
 162         /* Vertical retrace (=sync) end */
 163         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 164         temp = VRE - ((VDE + F - 1) & 31);
 165         C = (temp > 0) ? temp : (temp + 32);
 166
 167         D = B - F - C;
 168
 169         *upper_margin = D;
 170         *lower_margin = F;
 171         *vsync_len = C;
 172
 173         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 174                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 175         else
 176                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 177
 178         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 179                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 180         else
 181                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 182
 183         *vmode = FB_VMODE_NONINTERLACED;
 184         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080)
 185                 *vmode = FB_VMODE_INTERLACED;
 186         else {
 187                 j = 0;
 188                 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
 189                         if (XGI330_EModeIDTable[j].Ext_ModeID ==
 190                             XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
 191                                 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
 192                                     DoubleScanMode) {
 193                                         *vmode = FB_VMODE_DOUBLE;
 194                                 }
 195                                 break;
 196                         }
 197                         j++;
 198                 }
 199         }
 200
 201         return 1;
 202 }
 203
 204 void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 205 {
 206         XGI_Pr->P3c4 = BaseAddr + 0x14;
 207         XGI_Pr->P3d4 = BaseAddr + 0x24;
 208         XGI_Pr->P3c0 = BaseAddr + 0x10;
 209         XGI_Pr->P3ce = BaseAddr + 0x1e;
 210         XGI_Pr->P3c2 = BaseAddr + 0x12;
 211         XGI_Pr->P3cc = BaseAddr + 0x1c;
 212         XGI_Pr->P3ca = BaseAddr + 0x1a;
 213         XGI_Pr->P3c6 = BaseAddr + 0x16;
 214         XGI_Pr->P3c7 = BaseAddr + 0x17;
 215         XGI_Pr->P3c8 = BaseAddr + 0x18;
 216         XGI_Pr->P3c9 = BaseAddr + 0x19;
 217         XGI_Pr->P3da = BaseAddr + 0x2A;
 218         XGI_Pr->Part0Port = BaseAddr + XGI_CRT2_PORT_00;
 219         /* Digital video interface registers (LCD) */
 220         XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
 221         /* 301 TV Encoder registers */
 222         XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
 223         /* 301 Macrovision registers */
 224         XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
 225         /* 301 VGA2 (and LCD) registers */
 226         XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
 227         /* 301 palette address port registers */
 228         XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
 229
 230 }
 231
 232 /* ------------------ Internal helper routines ----------------- */
 233
 234 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 235 {
 236         int i = 0;
 237
 238         while ((XGIbios_mode[i].mode_no != 0)
 239                && (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
 240                 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE)
 241                     && (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE)
 242                     && (XGIbios_mode[i].bpp == 8)) {
 243                         return i;
 244                 }
 245                 i++;
 246         }
 247
 248         return -1;
 249 }
 250
 251 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 252                               const char *name)
 253 {
 254         unsigned int xres;
 255         unsigned int yres;
 256         unsigned int bpp;
 257         int i;
 258
 259         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 260                 goto invalid_mode;
 261
 262         if (bpp == 24)
 263                 bpp = 32; /* That's for people who mix up color and fb depth. */
 264
 265         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 266                 if (XGIbios_mode[i].xres == xres &&
 267                     XGIbios_mode[i].yres == yres &&
 268                     XGIbios_mode[i].bpp == bpp) {
 269                         xgifb_info->mode_idx = i;
 270                         return;
 271                 }
 272 invalid_mode:
 273         pr_info("Invalid mode '%s'\n", name);
 274 }
 275
 276 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 277                                   unsigned int vesamode)
 278 {
 279         int i = 0;
 280
 281         if (vesamode == 0)
 282                 goto invalid;
 283
 284         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 285
 286         while (XGIbios_mode[i].mode_no != 0) {
 287                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 288                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 289                         xgifb_info->mode_idx = i;
 290                         return;
 291                 }
 292                 i++;
 293         }
 294
 295 invalid:
 296         pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 297 }
 298
 299 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 300 {
 301         u16 xres, yres;
 302         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 303         unsigned long required_mem;
 304
 305         if (xgifb_info->chip == XG21) {
 306                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 307                         xres = xgifb_info->lvds_data.LVDSHDE;
 308                         yres = xgifb_info->lvds_data.LVDSVDE;
 309                         if (XGIbios_mode[myindex].xres > xres)
 310                                 return -1;
 311                         if (XGIbios_mode[myindex].yres > yres)
 312                                 return -1;
 313                         if ((XGIbios_mode[myindex].xres < xres) &&
 314                             (XGIbios_mode[myindex].yres < yres)) {
 315                                 if (XGIbios_mode[myindex].bpp > 8)
 316                                         return -1;
 317                         }
 318
 319                 }
 320                 goto check_memory;
 321
 322         }
 323
 324         /* FIXME: for now, all is valid on XG27 */
 325         if (xgifb_info->chip == XG27)
 326                 goto check_memory;
 327
 328         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 329                 return -1;
 330
 331         switch (xgifb_info->display2) {
 332         case XGIFB_DISP_LCD:
 333                 switch (hw_info->ulCRT2LCDType) {
 334                 case LCD_640x480:
 335                         xres = 640;
 336                         yres = 480;
 337                         break;
 338                 case LCD_800x600:
 339                         xres = 800;
 340                         yres = 600;
 341                         break;
 342                 case LCD_1024x600:
 343                         xres = 1024;
 344                         yres = 600;
 345                         break;
 346                 case LCD_1024x768:
 347                         xres = 1024;
 348                         yres = 768;
 349                         break;
 350                 case LCD_1152x768:
 351                         xres = 1152;
 352                         yres = 768;
 353                         break;
 354                 case LCD_1280x960:
 355                         xres = 1280;
 356                         yres = 960;
 357                         break;
 358                 case LCD_1280x768:
 359                         xres = 1280;
 360                         yres = 768;
 361                         break;
 362                 case LCD_1280x1024:
 363                         xres = 1280;
 364                         yres = 1024;
 365                         break;
 366                 case LCD_1400x1050:
 367                         xres = 1400;
 368                         yres = 1050;
 369                         break;
 370                 case LCD_1600x1200:
 371                         xres = 1600;
 372                         yres = 1200;
 373                         break;
 374                 default:
 375                         xres = 0;
 376                         yres = 0;
 377                         break;
 378                 }
 379                 if (XGIbios_mode[myindex].xres > xres)
 380                         return -1;
 381                 if (XGIbios_mode[myindex].yres > yres)
 382                         return -1;
 383                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 384                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 385                         switch (XGIbios_mode[myindex].xres) {
 386                         case 512:
 387                                 if (XGIbios_mode[myindex].yres != 512)
 388                                         return -1;
 389                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 390                                         return -1;
 391                                 break;
 392                         case 640:
 393                                 if ((XGIbios_mode[myindex].yres != 400)
 394                                                 && (XGIbios_mode[myindex].yres
 395                                                                 != 480))
 396                                         return -1;
 397                                 break;
 398                         case 800:
 399                                 if (XGIbios_mode[myindex].yres != 600)
 400                                         return -1;
 401                                 break;
 402                         case 1024:
 403                                 if ((XGIbios_mode[myindex].yres != 600) &&
 404                                     (XGIbios_mode[myindex].yres != 768))
 405                                         return -1;
 406                                 if ((XGIbios_mode[myindex].yres == 600) &&
 407                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 408                                         return -1;
 409                                 break;
 410                         case 1152:
 411                                 if ((XGIbios_mode[myindex].yres) != 768)
 412                                         return -1;
 413                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 414                                         return -1;
 415                                 break;
 416                         case 1280:
 417                                 if ((XGIbios_mode[myindex].yres != 768) &&
 418                                     (XGIbios_mode[myindex].yres != 1024))
 419                                         return -1;
 420                                 if ((XGIbios_mode[myindex].yres == 768) &&
 421                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 422                                         return -1;
 423                                 break;
 424                         case 1400:
 425                                 if (XGIbios_mode[myindex].yres != 1050)
 426                                         return -1;
 427                                 break;
 428                         case 1600:
 429                                 if (XGIbios_mode[myindex].yres != 1200)
 430                                         return -1;
 431                                 break;
 432                         default:
 433                                 return -1;
 434                         }
 435                 } else {
 436                         switch (XGIbios_mode[myindex].xres) {
 437                         case 512:
 438                                 if (XGIbios_mode[myindex].yres != 512)
 439                                         return -1;
 440                                 break;
 441                         case 640:
 442                                 if ((XGIbios_mode[myindex].yres != 400) &&
 443                                     (XGIbios_mode[myindex].yres != 480))
 444                                         return -1;
 445                                 break;
 446                         case 800:
 447                                 if (XGIbios_mode[myindex].yres != 600)
 448                                         return -1;
 449                                 break;
 450                         case 1024:
 451                                 if (XGIbios_mode[myindex].yres != 768)
 452                                         return -1;
 453                                 break;
 454                         case 1280:
 455                                 if ((XGIbios_mode[myindex].yres != 960) &&
 456                                     (XGIbios_mode[myindex].yres != 1024))
 457                                         return -1;
 458                                 if (XGIbios_mode[myindex].yres == 960) {
 459                                         if (hw_info->ulCRT2LCDType ==
 460                                             LCD_1400x1050)
 461                                                 return -1;
 462                                 }
 463                                 break;
 464                         case 1400:
 465                                 if (XGIbios_mode[myindex].yres != 1050)
 466                                         return -1;
 467                                 break;
 468                         case 1600:
 469                                 if (XGIbios_mode[myindex].yres != 1200)
 470                                         return -1;
 471                                 break;
 472                         default:
 473                                 return -1;
 474                         }
 475                 }
 476                 break;
 477         case XGIFB_DISP_TV:
 478                 switch (XGIbios_mode[myindex].xres) {
 479                 case 512:
 480                 case 640:
 481                 case 800:
 482                         break;
 483                 case 720:
 484                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 485                                 if (XGIbios_mode[myindex].yres != 480)
 486                                         return -1;
 487                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 488                                 if (XGIbios_mode[myindex].yres != 576)
 489                                         return -1;
 490                         }
 491                         /* LVDS/CHRONTEL does not support 720 */
 492                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 493                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 494                                 return -1;
 495                         }
 496                         break;
 497                 case 1024:
 498                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 499                                 if (XGIbios_mode[myindex].bpp == 32)
 500                                         return -1;
 501                         }
 502                         break;
 503                 default:
 504                         return -1;
 505                 }
 506                 break;
 507         case XGIFB_DISP_CRT:
 508                 if (XGIbios_mode[myindex].xres > 1280)
 509                         return -1;
 510                 break;
 511         case XGIFB_DISP_NONE:
 512                 break;
 513         }
 514
 515 check_memory:
 516         required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
 517                        XGIbios_mode[myindex].bpp / 8;
 518         if (required_mem > xgifb_info->video_size)
 519                 return -1;
 520         return myindex;
 521
 522 }
 523
 524 static void XGIfb_search_crt2type(const char *name)
 525 {
 526         int i = 0;
 527
 528         if (name == NULL)
 529                 return;
 530
 531         while (XGI_crt2type[i].type_no != -1) {
 532                 if (!strcmp(name, XGI_crt2type[i].name)) {
 533                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 534                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 535                         break;
 536                 }
 537                 i++;
 538         }
 539         if (XGIfb_crt2type < 0)
 540                 pr_info("Invalid CRT2 type: %s\n", name);
 541 }
 542
 543 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 544                                     unsigned int rate)
 545 {
 546         u16 xres, yres;
 547         int i = 0;
 548
 549         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 550         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 551
 552         xgifb_info->rate_idx = 0;
 553         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 554                 if ((XGIfb_vrate[i].xres == xres) &&
 555                     (XGIfb_vrate[i].yres == yres)) {
 556                         if (XGIfb_vrate[i].refresh == rate) {
 557                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 558                                 break;
 559                         } else if (XGIfb_vrate[i].refresh > rate) {
 560                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 561                                         pr_debug("Adjusting rate from %d up to %d\n",
 562                                                  rate, XGIfb_vrate[i].refresh);
 563                                         xgifb_info->rate_idx =
 564                                                 XGIfb_vrate[i].idx;
 565                                         xgifb_info->refresh_rate =
 566                                                 XGIfb_vrate[i].refresh;
 567                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 568                                                 <= 2) && (XGIfb_vrate[i].idx
 569                                                 != 1)) {
 570                                         pr_debug("Adjusting rate from %d down to %d\n",
 571                                                  rate,
 572                                                  XGIfb_vrate[i-1].refresh);
 573                                         xgifb_info->rate_idx =
 574                                                 XGIfb_vrate[i - 1].idx;
 575                                         xgifb_info->refresh_rate =
 576                                                 XGIfb_vrate[i - 1].refresh;
 577                                 }
 578                                 break;
 579                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 580                                 pr_debug("Adjusting rate from %d down to %d\n",
 581                                          rate, XGIfb_vrate[i].refresh);
 582                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 583                                 break;
 584                         }
 585                 }
 586                 i++;
 587         }
 588         if (xgifb_info->rate_idx > 0)
 589                 return xgifb_info->rate_idx;
 590         pr_info("Unsupported rate %d for %dx%d\n",
 591                 rate, xres, yres);
 592         return 0;
 593 }
 594
 595 static void XGIfb_search_tvstd(const char *name)
 596 {
 597         int i = 0;
 598
 599         if (name == NULL)
 600                 return;
 601
 602         while (XGI_tvtype[i].type_no != -1) {
 603                 if (!strcmp(name, XGI_tvtype[i].name)) {
 604                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 605                         break;
 606                 }
 607                 i++;
 608         }
 609 }
 610
 611 /* ----------- FBDev related routines for all series ----------- */
 612
 613 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 614                              struct fb_var_screeninfo *var)
 615 {
 616         switch (var->bits_per_pixel) {
 617         case 8:
 618                 var->red.offset = var->green.offset = var->blue.offset = 0;
 619                 var->red.length = var->green.length = var->blue.length = 6;
 620                 xgifb_info->video_cmap_len = 256;
 621                 break;
 622         case 16:
 623                 var->red.offset = 11;
 624                 var->red.length = 5;
 625                 var->green.offset = 5;
 626                 var->green.length = 6;
 627                 var->blue.offset = 0;
 628                 var->blue.length = 5;
 629                 var->transp.offset = 0;
 630                 var->transp.length = 0;
 631                 xgifb_info->video_cmap_len = 16;
 632                 break;
 633         case 32:
 634                 var->red.offset = 16;
 635                 var->red.length = 8;
 636                 var->green.offset = 8;
 637                 var->green.length = 8;
 638                 var->blue.offset = 0;
 639                 var->blue.length = 8;
 640                 var->transp.offset = 24;
 641                 var->transp.length = 8;
 642                 xgifb_info->video_cmap_len = 16;
 643                 break;
 644         }
 645 }
 646
 647 /* --------------------- SetMode routines ------------------------- */
 648
 649 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 650 {
 651         u8 cr30 = 0, cr31 = 0;
 652
 653         cr31 = xgifb_reg_get(XGICR, 0x31);
 654         cr31 &= ~0x60;
 655
 656         switch (xgifb_info->display2) {
 657         case XGIFB_DISP_CRT:
 658                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 659                 cr31 |= SIS_DRIVER_MODE;
 660                 break;
 661         case XGIFB_DISP_LCD:
 662                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 663                 cr31 |= SIS_DRIVER_MODE;
 664                 break;
 665         case XGIFB_DISP_TV:
 666                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 667                         cr30 = (SIS_VB_OUTPUT_HIVISION
 668                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 669                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 670                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 671                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 672                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 673                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 674                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 675                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 676                         cr30 = (SIS_VB_OUTPUT_SCART
 677                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 678                 cr31 |= SIS_DRIVER_MODE;
 679
 680                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 681                         cr31 |= 0x01;
 682                 else
 683                         cr31 &= ~0x01;
 684                 break;
 685         default: /* disable CRT2 */
 686                 cr30 = 0x00;
 687                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 688         }
 689
 690         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 691         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 692         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 693                                                 (xgifb_info->rate_idx & 0x0F));
 694 }
 695
 696 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 697 {
 698         u8 reg;
 699         unsigned char doit = 1;
 700
 701         if (xgifb_info->video_bpp == 8) {
 702                 /*
 703                  * We can't switch off CRT1 on LVDS/Chrontel
 704                  * in 8bpp Modes
 705                  */
 706                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 707                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 708                         doit = 0;
 709                 }
 710                 /*
 711                  * We can't switch off CRT1 on 301B-DH
 712                  * in 8bpp Modes if using LCD
 713                  */
 714                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 715                         doit = 0;
 716         }
 717
 718         /* We can't switch off CRT1 if bridge is in slave mode */
 719         if (xgifb_info->hasVB != HASVB_NONE) {
 720                 reg = xgifb_reg_get(XGIPART1, 0x00);
 721
 722                 if ((reg & 0x50) == 0x10)
 723                         doit = 0;
 724
 725         } else {
 726                 XGIfb_crt1off = 0;
 727         }
 728
 729         reg = xgifb_reg_get(XGICR, 0x17);
 730         if ((XGIfb_crt1off) && (doit))
 731                 reg &= ~0x80;
 732         else
 733                 reg |= 0x80;
 734         xgifb_reg_set(XGICR, 0x17, reg);
 735
 736         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 737
 738         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 739             xgifb_info->hasVB == HASVB_301) {
 740
 741                 reg = xgifb_reg_get(XGIPART4, 0x01);
 742
 743                 if (reg < 0xB0) { /* Set filter for XGI301 */
 744                         int filter_tb;
 745
 746                         switch (xgifb_info->video_width) {
 747                         case 320:
 748                                 filter_tb = (xgifb_info->TV_type ==
 749                                              TVMODE_NTSC) ? 4 : 12;
 750                                 break;
 751                         case 640:
 752                                 filter_tb = (xgifb_info->TV_type ==
 753                                              TVMODE_NTSC) ? 5 : 13;
 754                                 break;
 755                         case 720:
 756                                 filter_tb = (xgifb_info->TV_type ==
 757                                              TVMODE_NTSC) ? 6 : 14;
 758                                 break;
 759                         case 800:
 760                                 filter_tb = (xgifb_info->TV_type ==
 761                                              TVMODE_NTSC) ? 7 : 15;
 762                                 break;
 763                         default:
 764                                 filter_tb = 0;
 765                                 filter = -1;
 766                                 break;
 767                         }
 768                         xgifb_reg_or(XGIPART1,
 769                                      SIS_CRT2_WENABLE_315,
 770                                      0x01);
 771
 772                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 773
 774                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 775
 776                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 777
 778                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 779
 780                                 } else if (xgifb_info->TV_plug
 781                                                 == TVPLUG_COMPOSITE) {
 782
 783                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 784
 785                                         switch (xgifb_info->video_width) {
 786                                         case 640:
 787                                                 xgifb_reg_set(XGIPART2,
 788                                                               0x35,
 789                                                               0xEB);
 790                                                 xgifb_reg_set(XGIPART2,
 791                                                               0x36,
 792                                                               0x04);
 793                                                 xgifb_reg_set(XGIPART2,
 794                                                               0x37,
 795                                                               0x25);
 796                                                 xgifb_reg_set(XGIPART2,
 797                                                               0x38,
 798                                                               0x18);
 799                                                 break;
 800                                         case 720:
 801                                                 xgifb_reg_set(XGIPART2,
 802                                                               0x35,
 803                                                               0xEE);
 804                                                 xgifb_reg_set(XGIPART2,
 805                                                               0x36,
 806                                                               0x0C);
 807                                                 xgifb_reg_set(XGIPART2,
 808                                                               0x37,
 809                                                               0x22);
 810                                                 xgifb_reg_set(XGIPART2,
 811                                                               0x38,
 812                                                               0x08);
 813                                                 break;
 814                                         case 800:
 815                                                 xgifb_reg_set(XGIPART2,
 816                                                               0x35,
 817                                                               0xEB);
 818                                                 xgifb_reg_set(XGIPART2,
 819                                                               0x36,
 820                                                               0x15);
 821                                                 xgifb_reg_set(XGIPART2,
 822                                                               0x37,
 823                                                               0x25);
 824                                                 xgifb_reg_set(XGIPART2,
 825                                                               0x38,
 826                                                               0xF6);
 827                                                 break;
 828                                         }
 829                                 }
 830
 831                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 832
 833                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 834
 835                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 836
 837                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 838
 839                                 } else if (xgifb_info->TV_plug
 840                                                 == TVPLUG_COMPOSITE) {
 841
 842                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 843
 844                                         switch (xgifb_info->video_width) {
 845                                         case 640:
 846                                                 xgifb_reg_set(XGIPART2,
 847                                                               0x35,
 848                                                               0xF1);
 849                                                 xgifb_reg_set(XGIPART2,
 850                                                               0x36,
 851                                                               0xF7);
 852                                                 xgifb_reg_set(XGIPART2,
 853                                                               0x37,
 854                                                               0x1F);
 855                                                 xgifb_reg_set(XGIPART2,
 856                                                               0x38,
 857                                                               0x32);
 858                                                 break;
 859                                         case 720:
 860                                                 xgifb_reg_set(XGIPART2,
 861                                                               0x35,
 862                                                               0xF3);
 863                                                 xgifb_reg_set(XGIPART2,
 864                                                               0x36,
 865                                                               0x00);
 866                                                 xgifb_reg_set(XGIPART2,
 867                                                               0x37,
 868                                                               0x1D);
 869                                                 xgifb_reg_set(XGIPART2,
 870                                                               0x38,
 871                                                               0x20);
 872                                                 break;
 873                                         case 800:
 874                                                 xgifb_reg_set(XGIPART2,
 875                                                               0x35,
 876                                                               0xFC);
 877                                                 xgifb_reg_set(XGIPART2,
 878                                                               0x36,
 879                                                               0xFB);
 880                                                 xgifb_reg_set(XGIPART2,
 881                                                               0x37,
 882                                                               0x14);
 883                                                 xgifb_reg_set(XGIPART2,
 884                                                               0x38,
 885                                                               0x2A);
 886                                                 break;
 887                                         }
 888                                 }
 889                         }
 890
 891                         if ((filter >= 0) && (filter <= 7)) {
 892                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 893                                          filter_tb, filter,
 894                                          4, XGI_TV_filter[filter_tb].
 895                                                    filter[filter]);
 896                                 xgifb_reg_set(
 897                                         XGIPART2,
 898                                         0x35,
 899                                         (XGI_TV_filter[filter_tb].
 900                                                 filter[filter][0]));
 901                                 xgifb_reg_set(
 902                                         XGIPART2,
 903                                         0x36,
 904                                         (XGI_TV_filter[filter_tb].
 905                                                 filter[filter][1]));
 906                                 xgifb_reg_set(
 907                                         XGIPART2,
 908                                         0x37,
 909                                         (XGI_TV_filter[filter_tb].
 910                                                 filter[filter][2]));
 911                                 xgifb_reg_set(
 912                                         XGIPART2,
 913                                         0x38,
 914                                         (XGI_TV_filter[filter_tb].
 915                                                 filter[filter][3]));
 916                         }
 917                 }
 918         }
 919 }
 920
 921 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 922                 struct fb_info *info)
 923 {
 924         struct xgifb_video_info *xgifb_info = info->par;
 925         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 926         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 927                         + var->hsync_len;
 928         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 929                         + var->vsync_len;
 930 #if defined(__BIG_ENDIAN)
 931         u8 cr_data;
 932 #endif
 933         unsigned int drate = 0, hrate = 0;
 934         int found_mode = 0;
 935         int old_mode;
 936
 937         info->var.xres_virtual = var->xres_virtual;
 938         info->var.yres_virtual = var->yres_virtual;
 939         info->var.bits_per_pixel = var->bits_per_pixel;
 940
 941         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 942                 vtotal <<= 1;
 943         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 944                 vtotal <<= 2;
 945
 946         if (!htotal || !vtotal) {
 947                 pr_debug("Invalid 'var' information\n");
 948                 return -EINVAL;
 949         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 950                         var->pixclock, htotal, vtotal);
 951
 952         if (var->pixclock) {
 953                 drate = 1000000000 / var->pixclock;
 954                 hrate = (drate * 1000) / htotal;
 955                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 956                                 / vtotal);
 957         } else {
 958                 xgifb_info->refresh_rate = 60;
 959         }
 960
 961         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 962                var->xres,
 963                var->yres,
 964                var->bits_per_pixel,
 965                xgifb_info->refresh_rate);
 966
 967         old_mode = xgifb_info->mode_idx;
 968         xgifb_info->mode_idx = 0;
 969
 970         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
 971                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
 972                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
 973                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
 974                     (XGIbios_mode[xgifb_info->mode_idx].bpp
 975                                                 == var->bits_per_pixel)) {
 976                         found_mode = 1;
 977                         break;
 978                 }
 979                 xgifb_info->mode_idx++;
 980         }
 981
 982         if (found_mode)
 983                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
 984                                                         xgifb_info->mode_idx);
 985         else
 986                 xgifb_info->mode_idx = -1;
 987
 988         if (xgifb_info->mode_idx < 0) {
 989                 pr_err("Mode %dx%dx%d not supported\n",
 990                        var->xres, var->yres, var->bits_per_pixel);
 991                 xgifb_info->mode_idx = old_mode;
 992                 return -EINVAL;
 993         }
 994
 995         if (XGIfb_search_refresh_rate(xgifb_info,
 996                                       xgifb_info->refresh_rate) == 0) {
 997                 xgifb_info->rate_idx = 1;
 998                 xgifb_info->refresh_rate = 60;
 999         }
1000
1001         if (isactive) {
1002
1003                 XGIfb_pre_setmode(xgifb_info);
1004                 if (XGISetModeNew(xgifb_info, hw_info,
1005                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1006                                         == 0) {
1007                         pr_err("Setting mode[0x%x] failed\n",
1008                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1009                         return -EINVAL;
1010                 }
1011                 info->fix.line_length = (info->var.xres_virtual
1012                                 * info->var.bits_per_pixel) >> 6;
1013
1014                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1015
1016                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1017                 xgifb_reg_set(XGISR,
1018                               0x0E,
1019                               (info->fix.line_length & 0xff00) >> 8);
1020
1021                 XGIfb_post_setmode(xgifb_info);
1022
1023                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1024                          XGIbios_mode[xgifb_info->mode_idx].xres,
1025                          XGIbios_mode[xgifb_info->mode_idx].yres,
1026                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1027                          xgifb_info->refresh_rate);
1028
1029                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1030                 xgifb_info->video_vwidth = info->var.xres_virtual;
1031                 xgifb_info->video_width =
1032                         XGIbios_mode[xgifb_info->mode_idx].xres;
1033                 xgifb_info->video_vheight = info->var.yres_virtual;
1034                 xgifb_info->video_height =
1035                         XGIbios_mode[xgifb_info->mode_idx].yres;
1036                 xgifb_info->org_x = xgifb_info->org_y = 0;
1037                 xgifb_info->video_linelength = info->var.xres_virtual
1038                                 * (xgifb_info->video_bpp >> 3);
1039                 switch (xgifb_info->video_bpp) {
1040                 case 8:
1041                         xgifb_info->DstColor = 0x0000;
1042                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1043                         xgifb_info->video_cmap_len = 256;
1044 #if defined(__BIG_ENDIAN)
1045                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1046                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1047 #endif
1048                         break;
1049                 case 16:
1050                         xgifb_info->DstColor = 0x8000;
1051                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1052 #if defined(__BIG_ENDIAN)
1053                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1054                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1055 #endif
1056                         xgifb_info->video_cmap_len = 16;
1057                         break;
1058                 case 32:
1059                         xgifb_info->DstColor = 0xC000;
1060                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1061                         xgifb_info->video_cmap_len = 16;
1062 #if defined(__BIG_ENDIAN)
1063                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1064                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1065 #endif
1066                         break;
1067                 default:
1068                         xgifb_info->video_cmap_len = 16;
1069                         pr_err("Unsupported depth %d\n",
1070                                xgifb_info->video_bpp);
1071                         break;
1072                 }
1073         }
1074         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1075
1076         dumpVGAReg(xgifb_info);
1077         return 0;
1078 }
1079
1080 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1081 {
1082         struct xgifb_video_info *xgifb_info = info->par;
1083         unsigned int base;
1084
1085         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1086
1087         /* calculate base bpp dep. */
1088         switch (info->var.bits_per_pixel) {
1089         case 16:
1090                 base >>= 1;
1091                 break;
1092         case 32:
1093                 break;
1094         case 8:
1095         default:
1096                 base >>= 2;
1097                 break;
1098         }
1099
1100         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1101
1102         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1103         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1104         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1105         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1106         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1107
1108         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1109                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1110                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1111                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1112                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1113                 xgifb_reg_and_or(XGIPART1,
1114                                  0x02,
1115                                  0x7F,
1116                                  ((base >> 24) & 0x01) << 7);
1117         }
1118         return 0;
1119 }
1120
1121 static int XGIfb_open(struct fb_info *info, int user)
1122 {
1123         return 0;
1124 }
1125
1126 static int XGIfb_release(struct fb_info *info, int user)
1127 {
1128         return 0;
1129 }
1130
1131 /* similar to sisfb_get_cmap_len */
1132 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1133 {
1134         return (var->bits_per_pixel == 8) ? 256 : 16;
1135 }
1136
1137 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1138                 unsigned blue, unsigned transp, struct fb_info *info)
1139 {
1140         struct xgifb_video_info *xgifb_info = info->par;
1141
1142         if (regno >= XGIfb_get_cmap_len(&info->var))
1143                 return 1;
1144
1145         switch (info->var.bits_per_pixel) {
1146         case 8:
1147                 outb(regno, XGIDACA);
1148                 outb((red >> 10), XGIDACD);
1149                 outb((green >> 10), XGIDACD);
1150                 outb((blue >> 10), XGIDACD);
1151                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1152                         outb(regno, XGIDAC2A);
1153                         outb((red >> 8), XGIDAC2D);
1154                         outb((green >> 8), XGIDAC2D);
1155                         outb((blue >> 8), XGIDAC2D);
1156                 }
1157                 break;
1158         case 16:
1159                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1160                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1161                                 >> 11);
1162                 break;
1163         case 32:
1164                 red >>= 8;
1165                 green >>= 8;
1166                 blue >>= 8;
1167                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1168                                 << 8) | (blue);
1169                 break;
1170         }
1171         return 0;
1172 }
1173
1174 /* ----------- FBDev related routines for all series ---------- */
1175
1176 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1177                 struct fb_info *info)
1178 {
1179         struct xgifb_video_info *xgifb_info = info->par;
1180
1181         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1182
1183         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1184
1185         /* if register_framebuffer has been called, we must lock */
1186         if (atomic_read(&info->count))
1187                 mutex_lock(&info->mm_lock);
1188
1189         fix->smem_start = xgifb_info->video_base;
1190         fix->smem_len = xgifb_info->video_size;
1191
1192         /* if register_framebuffer has been called, we can unlock */
1193         if (atomic_read(&info->count))
1194                 mutex_unlock(&info->mm_lock);
1195
1196         fix->type = FB_TYPE_PACKED_PIXELS;
1197         fix->type_aux = 0;
1198         if (xgifb_info->video_bpp == 8)
1199                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1200         else
1201                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1202         fix->xpanstep = 0;
1203         if (XGIfb_ypan)
1204                 fix->ypanstep = 1;
1205         fix->ywrapstep = 0;
1206         fix->line_length = xgifb_info->video_linelength;
1207         fix->mmio_start = xgifb_info->mmio_base;
1208         fix->mmio_len = xgifb_info->mmio_size;
1209         fix->accel = FB_ACCEL_SIS_XABRE;
1210
1211         return 0;
1212 }
1213
1214 static int XGIfb_set_par(struct fb_info *info)
1215 {
1216         int err;
1217
1218         err = XGIfb_do_set_var(&info->var, 1, info);
1219         if (err)
1220                 return err;
1221         XGIfb_get_fix(&info->fix, -1, info);
1222         return 0;
1223 }
1224
1225 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1226 {
1227         struct xgifb_video_info *xgifb_info = info->par;
1228         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1229                         + var->hsync_len;
1230         unsigned int vtotal = 0;
1231         unsigned int drate = 0, hrate = 0;
1232         int found_mode = 0;
1233         int refresh_rate, search_idx;
1234
1235         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1236                 vtotal = var->upper_margin + var->yres + var->lower_margin
1237                                 + var->vsync_len;
1238                 vtotal <<= 1;
1239         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1240                 vtotal = var->upper_margin + var->yres + var->lower_margin
1241                                 + var->vsync_len;
1242                 vtotal <<= 2;
1243         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1244                 vtotal = var->upper_margin + (var->yres / 2)
1245                                 + var->lower_margin + var->vsync_len;
1246         } else
1247                 vtotal = var->upper_margin + var->yres + var->lower_margin
1248                                 + var->vsync_len;
1249
1250         if (!(htotal) || !(vtotal)) {
1251                 pr_debug("No valid timing data\n");
1252                 return -EINVAL;
1253         }
1254
1255         if (var->pixclock && htotal && vtotal) {
1256                 drate = 1000000000 / var->pixclock;
1257                 hrate = (drate * 1000) / htotal;
1258                 xgifb_info->refresh_rate =
1259                         (unsigned int) (hrate * 2 / vtotal);
1260                 pr_debug(
1261                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1262                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1263                         __func__, var->pixclock, htotal, vtotal,
1264                         __func__, drate, hrate, xgifb_info->refresh_rate);
1265         } else {
1266                 xgifb_info->refresh_rate = 60;
1267         }
1268
1269         /* Calculation wrong for 1024x600 - force it to 60Hz */
1270         if ((var->xres == 1024) && (var->yres == 600))
1271                 refresh_rate = 60;
1272
1273         search_idx = 0;
1274         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1275                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1276                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1277                         (XGIbios_mode[search_idx].yres == var->yres) &&
1278                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1279                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1280                                 found_mode = 1;
1281                                 break;
1282                         }
1283                 }
1284                 search_idx++;
1285         }
1286
1287         if (!found_mode) {
1288
1289                 pr_err("%dx%dx%d is no valid mode\n",
1290                         var->xres, var->yres, var->bits_per_pixel);
1291                 search_idx = 0;
1292                 while (XGIbios_mode[search_idx].mode_no != 0) {
1293                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1294                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1295                             (var->bits_per_pixel ==
1296                              XGIbios_mode[search_idx].bpp)) {
1297                                 if (XGIfb_validate_mode(xgifb_info,
1298                                                         search_idx) > 0) {
1299                                         found_mode = 1;
1300                                         break;
1301                                 }
1302                         }
1303                         search_idx++;
1304                 }
1305                 if (found_mode) {
1306                         var->xres = XGIbios_mode[search_idx].xres;
1307                         var->yres = XGIbios_mode[search_idx].yres;
1308                         pr_debug("Adapted to mode %dx%dx%d\n",
1309                                 var->xres, var->yres, var->bits_per_pixel);
1310
1311                 } else {
1312                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1313                                 var->xres, var->yres, var->bits_per_pixel);
1314                         return -EINVAL;
1315                 }
1316         }
1317
1318         /* Adapt RGB settings */
1319         XGIfb_bpp_to_var(xgifb_info, var);
1320
1321         if (!XGIfb_ypan) {
1322                 if (var->xres != var->xres_virtual)
1323                         var->xres_virtual = var->xres;
1324                 if (var->yres != var->yres_virtual)
1325                         var->yres_virtual = var->yres;
1326         }
1327
1328         /* Truncate offsets to maximum if too high */
1329         if (var->xoffset > var->xres_virtual - var->xres)
1330                 var->xoffset = var->xres_virtual - var->xres - 1;
1331
1332         if (var->yoffset > var->yres_virtual - var->yres)
1333                 var->yoffset = var->yres_virtual - var->yres - 1;
1334
1335         /* Set everything else to 0 */
1336         var->red.msb_right =
1337         var->green.msb_right =
1338         var->blue.msb_right =
1339         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1340
1341         return 0;
1342 }
1343
1344 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1345                 struct fb_info *info)
1346 {
1347         int err;
1348
1349         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1350                 return -EINVAL;
1351         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1352                 return -EINVAL;
1353
1354         if (var->vmode & FB_VMODE_YWRAP) {
1355                 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1356                         return -EINVAL;
1357         } else if (var->xoffset + info->var.xres > info->var.xres_virtual
1358                                 || var->yoffset + info->var.yres
1359                                                 > info->var.yres_virtual) {
1360                 return -EINVAL;
1361         }
1362         err = XGIfb_pan_var(var, info);
1363         if (err < 0)
1364                 return err;
1365
1366         info->var.xoffset = var->xoffset;
1367         info->var.yoffset = var->yoffset;
1368         if (var->vmode & FB_VMODE_YWRAP)
1369                 info->var.vmode |= FB_VMODE_YWRAP;
1370         else
1371                 info->var.vmode &= ~FB_VMODE_YWRAP;
1372
1373         return 0;
1374 }
1375
1376 static int XGIfb_blank(int blank, struct fb_info *info)
1377 {
1378         struct xgifb_video_info *xgifb_info = info->par;
1379         u8 reg;
1380
1381         reg = xgifb_reg_get(XGICR, 0x17);
1382
1383         if (blank > 0)
1384                 reg &= 0x7f;
1385         else
1386                 reg |= 0x80;
1387
1388         xgifb_reg_set(XGICR, 0x17, reg);
1389         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1390         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1391         return 0;
1392 }
1393
1394 static struct fb_ops XGIfb_ops = {
1395         .owner = THIS_MODULE,
1396         .fb_open = XGIfb_open,
1397         .fb_release = XGIfb_release,
1398         .fb_check_var = XGIfb_check_var,
1399         .fb_set_par = XGIfb_set_par,
1400         .fb_setcolreg = XGIfb_setcolreg,
1401         .fb_pan_display = XGIfb_pan_display,
1402         .fb_blank = XGIfb_blank,
1403         .fb_fillrect = cfb_fillrect,
1404         .fb_copyarea = cfb_copyarea,
1405         .fb_imageblit = cfb_imageblit,
1406 };
1407
1408 /* ---------------- Chip generation dependent routines ---------------- */
1409
1410 /* for XGI 315/550/650/740/330 */
1411
1412 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1413 {
1414
1415         u8 ChannelNum, tmp;
1416         u8 reg = 0;
1417
1418         /* xorg driver sets 32MB * 1 channel */
1419         if (xgifb_info->chip == XG27)
1420                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1421
1422         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1423         if (!reg)
1424                 return -1;
1425
1426         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1427         case XGI_DRAM_SIZE_1MB:
1428                 xgifb_info->video_size = 0x100000;
1429                 break;
1430         case XGI_DRAM_SIZE_2MB:
1431                 xgifb_info->video_size = 0x200000;
1432                 break;
1433         case XGI_DRAM_SIZE_4MB:
1434                 xgifb_info->video_size = 0x400000;
1435                 break;
1436         case XGI_DRAM_SIZE_8MB:
1437                 xgifb_info->video_size = 0x800000;
1438                 break;
1439         case XGI_DRAM_SIZE_16MB:
1440                 xgifb_info->video_size = 0x1000000;
1441                 break;
1442         case XGI_DRAM_SIZE_32MB:
1443                 xgifb_info->video_size = 0x2000000;
1444                 break;
1445         case XGI_DRAM_SIZE_64MB:
1446                 xgifb_info->video_size = 0x4000000;
1447                 break;
1448         case XGI_DRAM_SIZE_128MB:
1449                 xgifb_info->video_size = 0x8000000;
1450                 break;
1451         case XGI_DRAM_SIZE_256MB:
1452                 xgifb_info->video_size = 0x10000000;
1453                 break;
1454         default:
1455                 return -1;
1456         }
1457
1458         tmp = (reg & 0x0c) >> 2;
1459         switch (xgifb_info->chip) {
1460         case XG20:
1461         case XG21:
1462         case XG27:
1463                 ChannelNum = 1;
1464                 break;
1465
1466         case XG42:
1467                 if (reg & 0x04)
1468                         ChannelNum = 2;
1469                 else
1470                         ChannelNum = 1;
1471                 break;
1472
1473         case XG40:
1474         default:
1475                 if (tmp == 2)
1476                         ChannelNum = 2;
1477                 else if (tmp == 3)
1478                         ChannelNum = 3;
1479                 else
1480                         ChannelNum = 1;
1481                 break;
1482         }
1483
1484         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1485
1486         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1487                reg,
1488                xgifb_info->video_size, ChannelNum);
1489         return 0;
1490
1491 }
1492
1493 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1494 {
1495         u8 cr32, temp = 0;
1496
1497         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1498
1499         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1500
1501         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1502                 XGIfb_crt1off = 0;
1503         else {
1504                 if (cr32 & 0x5F)
1505                         XGIfb_crt1off = 1;
1506                 else
1507                         XGIfb_crt1off = 0;
1508         }
1509
1510         if (!xgifb_info->display2_force) {
1511                 if (cr32 & SIS_VB_TV)
1512                         xgifb_info->display2 = XGIFB_DISP_TV;
1513                 else if (cr32 & SIS_VB_LCD)
1514                         xgifb_info->display2 = XGIFB_DISP_LCD;
1515                 else if (cr32 & SIS_VB_CRT2)
1516                         xgifb_info->display2 = XGIFB_DISP_CRT;
1517                 else
1518                         xgifb_info->display2 = XGIFB_DISP_NONE;
1519         }
1520
1521         if (XGIfb_tvplug != -1)
1522                 /* Override with option */
1523                 xgifb_info->TV_plug = XGIfb_tvplug;
1524         else if (cr32 & SIS_VB_HIVISION) {
1525                 xgifb_info->TV_type = TVMODE_HIVISION;
1526                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1527         } else if (cr32 & SIS_VB_SVIDEO)
1528                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1529         else if (cr32 & SIS_VB_COMPOSITE)
1530                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1531         else if (cr32 & SIS_VB_SCART)
1532                 xgifb_info->TV_plug = TVPLUG_SCART;
1533
1534         if (xgifb_info->TV_type == 0) {
1535                 temp = xgifb_reg_get(XGICR, 0x38);
1536                 if (temp & 0x10)
1537                         xgifb_info->TV_type = TVMODE_PAL;
1538                 else
1539                         xgifb_info->TV_type = TVMODE_NTSC;
1540         }
1541
1542         /* Copy forceCRT1 option to CRT1off if option is given */
1543         if (XGIfb_forcecrt1 != -1) {
1544                 if (XGIfb_forcecrt1)
1545                         XGIfb_crt1off = 0;
1546                 else
1547                         XGIfb_crt1off = 1;
1548         }
1549 }
1550
1551 static bool XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1552 {
1553         u8 vb_chipid;
1554
1555         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1556         switch (vb_chipid) {
1557         case 0x01:
1558                 xgifb_info->hasVB = HASVB_301;
1559                 break;
1560         case 0x02:
1561                 xgifb_info->hasVB = HASVB_302;
1562                 break;
1563         default:
1564                 xgifb_info->hasVB = HASVB_NONE;
1565                 return false;
1566         }
1567         return true;
1568 }
1569
1570 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1571 {
1572         u8 reg;
1573
1574         if (!XGIfb_has_VB(xgifb_info)) {
1575                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1576                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1577                 case SIS_EXTERNAL_CHIP_LVDS:
1578                         xgifb_info->hasVB = HASVB_LVDS;
1579                         break;
1580                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1581                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1582                         break;
1583                 default:
1584                         break;
1585                 }
1586         }
1587 }
1588
1589 static int __init xgifb_optval(char *fullopt, int validx)
1590 {
1591         unsigned long lres;
1592
1593         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1594                 pr_err("Invalid value for option: %s\n", fullopt);
1595                 return 0;
1596         }
1597         return lres;
1598 }
1599
1600 static int __init XGIfb_setup(char *options)
1601 {
1602         char *this_opt;
1603
1604         if (!options || !*options)
1605                 return 0;
1606
1607         pr_info("Options: %s\n", options);
1608
1609         while ((this_opt = strsep(&options, ",")) != NULL) {
1610
1611                 if (!*this_opt)
1612                         continue;
1613
1614                 if (!strncmp(this_opt, "mode:", 5)) {
1615                         mode = this_opt + 5;
1616                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1617                         vesa = xgifb_optval(this_opt, 5);
1618                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1619                         refresh_rate = xgifb_optval(this_opt, 6);
1620                 } else if (!strncmp(this_opt, "rate:", 5)) {
1621                         refresh_rate = xgifb_optval(this_opt, 5);
1622                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1623                         XGIfb_crt1off = 1;
1624                 } else if (!strncmp(this_opt, "filter:", 7)) {
1625                         filter = xgifb_optval(this_opt, 7);
1626                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1627                         XGIfb_search_crt2type(this_opt + 14);
1628                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1629                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1630                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1631                         XGIfb_search_tvstd(this_opt + 7);
1632                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1633                         XGIfb_search_tvstd(this_opt + 7);
1634                 } else if (!strncmp(this_opt, "dstn", 4)) {
1635                         enable_dstn = 1;
1636                         /* DSTN overrules forcecrt2type */
1637                         XGIfb_crt2type = XGIFB_DISP_LCD;
1638                 } else if (!strncmp(this_opt, "noypan", 6)) {
1639                         XGIfb_ypan = 0;
1640                 } else {
1641                         mode = this_opt;
1642                 }
1643         }
1644         return 0;
1645 }
1646
1647 static int xgifb_probe(struct pci_dev *pdev,
1648                 const struct pci_device_id *ent)
1649 {
1650         u8 reg, reg1;
1651         u8 CR48, CR38;
1652         int ret;
1653         struct fb_info *fb_info;
1654         struct xgifb_video_info *xgifb_info;
1655         struct xgi_hw_device_info *hw_info;
1656         unsigned long video_size_max;
1657
1658         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1659         if (!fb_info)
1660                 return -ENOMEM;
1661
1662         xgifb_info = fb_info->par;
1663         hw_info = &xgifb_info->hw_info;
1664         xgifb_info->fb_info = fb_info;
1665         xgifb_info->chip_id = pdev->device;
1666         pci_read_config_byte(pdev,
1667                              PCI_REVISION_ID,
1668                              &xgifb_info->revision_id);
1669         hw_info->jChipRevision = xgifb_info->revision_id;
1670
1671         xgifb_info->pcibus = pdev->bus->number;
1672         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1673         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1674         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1675         xgifb_info->subsysdevice = pdev->subsystem_device;
1676
1677         video_size_max = pci_resource_len(pdev, 0);
1678         xgifb_info->video_base = pci_resource_start(pdev, 0);
1679         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1680         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1681         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1682         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1683                  (u64) pci_resource_start(pdev, 2),
1684                  xgifb_info->vga_base);
1685
1686         if (pci_enable_device(pdev)) {
1687                 ret = -EIO;
1688                 goto error;
1689         }
1690
1691         if (XGIfb_crt2type != -1) {
1692                 xgifb_info->display2 = XGIfb_crt2type;
1693                 xgifb_info->display2_force = true;
1694         }
1695
1696         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1697
1698         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1699         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1700
1701         if (reg1 != 0xa1) { /*I/O error */
1702                 dev_err(&pdev->dev, "I/O error\n");
1703                 ret = -EIO;
1704                 goto error_disable;
1705         }
1706
1707         switch (xgifb_info->chip_id) {
1708         case PCI_DEVICE_ID_XGI_20:
1709                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1710                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1711                 if (CR48&GPIOG_READ)
1712                         xgifb_info->chip = XG21;
1713                 else
1714                         xgifb_info->chip = XG20;
1715                 break;
1716         case PCI_DEVICE_ID_XGI_40:
1717                 xgifb_info->chip = XG40;
1718                 break;
1719         case PCI_DEVICE_ID_XGI_42:
1720                 xgifb_info->chip = XG42;
1721                 break;
1722         case PCI_DEVICE_ID_XGI_27:
1723                 xgifb_info->chip = XG27;
1724                 break;
1725         default:
1726                 ret = -ENODEV;
1727                 goto error_disable;
1728         }
1729
1730         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1731         hw_info->jChipType = xgifb_info->chip;
1732
1733         if (XGIfb_get_dram_size(xgifb_info)) {
1734                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1735                                                 SZ_16M);
1736         } else if (xgifb_info->video_size > video_size_max) {
1737                 xgifb_info->video_size = video_size_max;
1738         }
1739
1740         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1741         xgifb_reg_or(XGISR,
1742                      IND_SIS_PCI_ADDRESS_SET,
1743                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1744         /* Enable 2D accelerator engine */
1745         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1746
1747         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1748
1749         if (!request_mem_region(xgifb_info->video_base,
1750                                 xgifb_info->video_size,
1751                                 "XGIfb FB")) {
1752                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1753                        xgifb_info->video_size);
1754                 dev_err(&pdev->dev,
1755                         "Fatal error: Unable to reserve frame buffer memory. Is there another framebuffer driver active?\n");
1756                 ret = -ENODEV;
1757                 goto error_disable;
1758         }
1759
1760         if (!request_mem_region(xgifb_info->mmio_base,
1761                                 xgifb_info->mmio_size,
1762                                 "XGIfb MMIO")) {
1763                 dev_err(&pdev->dev,
1764                         "Fatal error: Unable to reserve MMIO region\n");
1765                 ret = -ENODEV;
1766                 goto error_0;
1767         }
1768
1769         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1770                 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1771         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1772                                             xgifb_info->mmio_size);
1773
1774         dev_info(&pdev->dev,
1775                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1776                  (u64) xgifb_info->video_base,
1777                  xgifb_info->video_vbase,
1778                  xgifb_info->video_size / 1024);
1779
1780         dev_info(&pdev->dev,
1781                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1782                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1783                  xgifb_info->mmio_size / 1024);
1784
1785         pci_set_drvdata(pdev, xgifb_info);
1786         if (!XGIInitNew(pdev))
1787                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1788
1789         xgifb_info->mtrr = -1;
1790
1791         xgifb_info->hasVB = HASVB_NONE;
1792         if ((xgifb_info->chip == XG20) ||
1793             (xgifb_info->chip == XG27)) {
1794                 xgifb_info->hasVB = HASVB_NONE;
1795         } else if (xgifb_info->chip == XG21) {
1796                 CR38 = xgifb_reg_get(XGICR, 0x38);
1797                 if ((CR38&0xE0) == 0xC0)
1798                         xgifb_info->display2 = XGIFB_DISP_LCD;
1799                 else if ((CR38&0xE0) == 0x60)
1800                         xgifb_info->hasVB = HASVB_CHRONTEL;
1801                 else
1802                         xgifb_info->hasVB = HASVB_NONE;
1803         } else {
1804                 XGIfb_get_VB_type(xgifb_info);
1805         }
1806
1807         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1808
1809         hw_info->ulExternalChip = 0;
1810
1811         switch (xgifb_info->hasVB) {
1812         case HASVB_301:
1813                 reg = xgifb_reg_get(XGIPART4, 0x01);
1814                 if (reg >= 0xE0) {
1815                         hw_info->ujVBChipID = VB_CHIP_302LV;
1816                         dev_info(&pdev->dev,
1817                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1818                                  reg);
1819                 } else if (reg >= 0xD0) {
1820                         hw_info->ujVBChipID = VB_CHIP_301LV;
1821                         dev_info(&pdev->dev,
1822                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1823                                  reg);
1824                 } else {
1825                         hw_info->ujVBChipID = VB_CHIP_301;
1826                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1827                 }
1828                 break;
1829         case HASVB_302:
1830                 reg = xgifb_reg_get(XGIPART4, 0x01);
1831                 if (reg >= 0xE0) {
1832                         hw_info->ujVBChipID = VB_CHIP_302LV;
1833                         dev_info(&pdev->dev,
1834                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1835                                  reg);
1836                 } else if (reg >= 0xD0) {
1837                         hw_info->ujVBChipID = VB_CHIP_301LV;
1838                         dev_info(&pdev->dev,
1839                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1840                                  reg);
1841                 } else if (reg >= 0xB0) {
1842                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1843
1844                         hw_info->ujVBChipID = VB_CHIP_302B;
1845
1846                 } else {
1847                         hw_info->ujVBChipID = VB_CHIP_302;
1848                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1849                 }
1850                 break;
1851         case HASVB_LVDS:
1852                 hw_info->ulExternalChip = 0x1;
1853                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1854                 break;
1855         case HASVB_TRUMPION:
1856                 hw_info->ulExternalChip = 0x2;
1857                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1858                 break;
1859         case HASVB_CHRONTEL:
1860                 hw_info->ulExternalChip = 0x4;
1861                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1862                 break;
1863         case HASVB_LVDS_CHRONTEL:
1864                 hw_info->ulExternalChip = 0x5;
1865                 dev_info(&pdev->dev,
1866                          "LVDS transmitter and Chrontel TV encoder detected\n");
1867                 break;
1868         default:
1869                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1870                 break;
1871         }
1872
1873         if (xgifb_info->hasVB != HASVB_NONE)
1874                 XGIfb_detect_VB(xgifb_info);
1875         else if (xgifb_info->chip != XG21)
1876                 xgifb_info->display2 = XGIFB_DISP_NONE;
1877
1878         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1879                 if (!enable_dstn) {
1880                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1881                         reg &= 0x0f;
1882                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1883                 }
1884         }
1885
1886         xgifb_info->mode_idx = -1;
1887
1888         if (mode)
1889                 XGIfb_search_mode(xgifb_info, mode);
1890         else if (vesa != -1)
1891                 XGIfb_search_vesamode(xgifb_info, vesa);
1892
1893         if (xgifb_info->mode_idx >= 0)
1894                 xgifb_info->mode_idx =
1895                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1896
1897         if (xgifb_info->mode_idx < 0) {
1898                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1899                     xgifb_info->chip == XG21)
1900                         xgifb_info->mode_idx =
1901                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1902                 else
1903                         xgifb_info->mode_idx = DEFAULT_MODE;
1904         }
1905
1906         if (xgifb_info->mode_idx < 0) {
1907                 dev_err(&pdev->dev, "No supported video mode found\n");
1908                 ret = -EINVAL;
1909                 goto error_1;
1910         }
1911
1912         /* set default refresh rate */
1913         xgifb_info->refresh_rate = refresh_rate;
1914         if (xgifb_info->refresh_rate == 0)
1915                 xgifb_info->refresh_rate = 60;
1916         if (XGIfb_search_refresh_rate(xgifb_info,
1917                         xgifb_info->refresh_rate) == 0) {
1918                 xgifb_info->rate_idx = 1;
1919                 xgifb_info->refresh_rate = 60;
1920         }
1921
1922         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1923         xgifb_info->video_vwidth =
1924                 xgifb_info->video_width =
1925                         XGIbios_mode[xgifb_info->mode_idx].xres;
1926         xgifb_info->video_vheight =
1927                 xgifb_info->video_height =
1928                         XGIbios_mode[xgifb_info->mode_idx].yres;
1929         xgifb_info->org_x = xgifb_info->org_y = 0;
1930         xgifb_info->video_linelength =
1931                 xgifb_info->video_width *
1932                 (xgifb_info->video_bpp >> 3);
1933         switch (xgifb_info->video_bpp) {
1934         case 8:
1935                 xgifb_info->DstColor = 0x0000;
1936                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1937                 xgifb_info->video_cmap_len = 256;
1938                 break;
1939         case 16:
1940                 xgifb_info->DstColor = 0x8000;
1941                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1942                 xgifb_info->video_cmap_len = 16;
1943                 break;
1944         case 32:
1945                 xgifb_info->DstColor = 0xC000;
1946                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1947                 xgifb_info->video_cmap_len = 16;
1948                 break;
1949         default:
1950                 xgifb_info->video_cmap_len = 16;
1951                 pr_info("Unsupported depth %d\n",
1952                        xgifb_info->video_bpp);
1953                 break;
1954         }
1955
1956         pr_info("Default mode is %dx%dx%d (%dHz)\n",
1957                xgifb_info->video_width,
1958                xgifb_info->video_height,
1959                xgifb_info->video_bpp,
1960                xgifb_info->refresh_rate);
1961
1962         fb_info->var.red.length         = 8;
1963         fb_info->var.green.length       = 8;
1964         fb_info->var.blue.length        = 8;
1965         fb_info->var.activate           = FB_ACTIVATE_NOW;
1966         fb_info->var.height             = -1;
1967         fb_info->var.width              = -1;
1968         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
1969         fb_info->var.xres               = xgifb_info->video_width;
1970         fb_info->var.xres_virtual       = xgifb_info->video_width;
1971         fb_info->var.yres               = xgifb_info->video_height;
1972         fb_info->var.yres_virtual       = xgifb_info->video_height;
1973         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
1974
1975         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1976
1977         fb_info->var.pixclock = (u32) (1000000000 /
1978                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
1979                                 hw_info,
1980                                 XGIbios_mode[xgifb_info->mode_idx].mode_no));
1981
1982         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
1983                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
1984                 &fb_info->var.left_margin,
1985                 &fb_info->var.right_margin,
1986                 &fb_info->var.upper_margin,
1987                 &fb_info->var.lower_margin,
1988                 &fb_info->var.hsync_len,
1989                 &fb_info->var.vsync_len,
1990                 &fb_info->var.sync,
1991                 &fb_info->var.vmode)) {
1992
1993                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1994                     FB_VMODE_INTERLACED) {
1995                         fb_info->var.yres <<= 1;
1996                         fb_info->var.yres_virtual <<= 1;
1997                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1998                            FB_VMODE_DOUBLE) {
1999                         fb_info->var.pixclock >>= 1;
2000                         fb_info->var.yres >>= 1;
2001                         fb_info->var.yres_virtual >>= 1;
2002                 }
2003
2004         }
2005
2006         fb_info->flags = FBINFO_FLAG_DEFAULT;
2007         fb_info->screen_base = xgifb_info->video_vbase;
2008         fb_info->fbops = &XGIfb_ops;
2009         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2010         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2011
2012         fb_alloc_cmap(&fb_info->cmap, 256, 0);
2013
2014         xgifb_info->mtrr = arch_phys_wc_add(xgifb_info->video_base,
2015                                             xgifb_info->video_size);
2016
2017         if (register_framebuffer(fb_info) < 0) {
2018                 ret = -EINVAL;
2019                 goto error_mtrr;
2020         }
2021
2022         dumpVGAReg(xgifb_info);
2023
2024         return 0;
2025
2026 error_mtrr:
2027         arch_phys_wc_del(xgifb_info->mtrr);
2028 error_1:
2029         iounmap(xgifb_info->mmio_vbase);
2030         iounmap(xgifb_info->video_vbase);
2031         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2032 error_0:
2033         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2034 error_disable:
2035         pci_disable_device(pdev);
2036 error:
2037         framebuffer_release(fb_info);
2038         return ret;
2039 }
2040
2041 /*****************************************************/
2042 /*                PCI DEVICE HANDLING                */
2043 /*****************************************************/
2044
2045 static void xgifb_remove(struct pci_dev *pdev)
2046 {
2047         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2048         struct fb_info *fb_info = xgifb_info->fb_info;
2049
2050         unregister_framebuffer(fb_info);
2051         arch_phys_wc_del(xgifb_info->mtrr);
2052         iounmap(xgifb_info->mmio_vbase);
2053         iounmap(xgifb_info->video_vbase);
2054         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2055         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2056         pci_disable_device(pdev);
2057         framebuffer_release(fb_info);
2058 }
2059
2060 static struct pci_driver xgifb_driver = {
2061         .name = "xgifb",
2062         .id_table = xgifb_pci_table,
2063         .probe = xgifb_probe,
2064         .remove = xgifb_remove
2065 };
2066
2067
2068
2069 /*****************************************************/
2070 /*                      MODULE                       */
2071 /*****************************************************/
2072
2073 module_param(mode, charp, 0);
2074 MODULE_PARM_DESC(mode,
2075         "Selects the desired default display mode in the format XxYxDepth (eg. 1024x768x16).");
2076
2077 module_param(forcecrt2type, charp, 0);
2078 MODULE_PARM_DESC(forcecrt2type,
2079         "Force the second display output type. Possible values are NONE, LCD, TV, VGA, SVIDEO or COMPOSITE.");
2080
2081 module_param(vesa, int, 0);
2082 MODULE_PARM_DESC(vesa,
2083         "Selects the desired default display mode by VESA mode number (eg. 0x117).");
2084
2085 module_param(filter, int, 0);
2086 MODULE_PARM_DESC(filter,
2087         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). Possible values 0-7. Default: [no filter]).");
2088
2089 static int __init xgifb_init(void)
2090 {
2091         char *option = NULL;
2092
2093         if (forcecrt2type != NULL)
2094                 XGIfb_search_crt2type(forcecrt2type);
2095         if (fb_get_options("xgifb", &option))
2096                 return -ENODEV;
2097         XGIfb_setup(option);
2098
2099         return pci_register_driver(&xgifb_driver);
2100 }
2101
2102 static void __exit xgifb_remove_module(void)
2103 {
2104         pci_unregister_driver(&xgifb_driver);
2105         pr_debug("Module unloaded\n");
2106 }
2107
2108 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2109 MODULE_LICENSE("GPL");
2110 MODULE_AUTHOR("XGITECH , Others");
2111 module_init(xgifb_init);
2112 module_exit(xgifb_remove_module);