drivers/staging/xgifb/XGI_main_26.c

   1 /*
   2  * XG20, XG21, XG40, XG42 frame buffer device
   3  * for Linux kernels  2.5.x, 2.6.x
   4  * Base on TW's sis fbdev code.
   5  */
   6
   7 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
   8
   9 #include <linux/sizes.h>
  10 #include <linux/module.h>
  11
  12 #ifdef CONFIG_MTRR
  13 #include <asm/mtrr.h>
  14 #endif
  15
  16 #include "XGI_main.h"
  17 #include "vb_init.h"
  18 #include "vb_util.h"
  19 #include "vb_setmode.h"
  20
  21 #define Index_CR_GPIO_Reg1 0x48
  22 #define Index_CR_GPIO_Reg3 0x4a
  23
  24 #define GPIOG_EN    (1<<6)
  25 #define GPIOG_READ  (1<<1)
  26
  27 static char *forcecrt2type;
  28 static char *mode;
  29 static int vesa = -1;
  30 static unsigned int refresh_rate;
  31
  32 /* -------------------- Macro definitions ---------------------------- */
  33
  34 #ifdef DEBUG
  35 static void dumpVGAReg(void)
  36 {
  37         u8 i, reg;
  38
  39         xgifb_reg_set(XGISR, 0x05, 0x86);
  40
  41         for (i = 0; i < 0x4f; i++) {
  42                 reg = xgifb_reg_get(XGISR, i);
  43                 pr_debug("o 3c4 %x\n", i);
  44                 pr_debug("i 3c5 => %x\n", reg);
  45         }
  46
  47         for (i = 0; i < 0xF0; i++) {
  48                 reg = xgifb_reg_get(XGICR, i);
  49                 pr_debug("o 3d4 %x\n", i);
  50                 pr_debug("i 3d5 => %x\n", reg);
  51         }
  52 }
  53 #else
  54 static inline void dumpVGAReg(void)
  55 {
  56 }
  57 #endif
  58
  59 /* --------------- Hardware Access Routines -------------------------- */
  60
  61 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
  62                 struct xgi_hw_device_info *HwDeviceExtension,
  63                 unsigned char modeno)
  64 {
  65         unsigned short ModeNo = modeno;
  66         unsigned short ModeIdIndex = 0, ClockIndex = 0;
  67         unsigned short RefreshRateTableIndex = 0;
  68         int Clock;
  69         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  70
  71         XGI_SearchModeID(ModeNo, &ModeIdIndex);
  72
  73         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  74                         ModeIdIndex, XGI_Pr);
  75
  76         ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
  77
  78         Clock = XGI_VCLKData[ClockIndex].CLOCK * 1000;
  79
  80         return Clock;
  81 }
  82
  83 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
  84                 struct xgi_hw_device_info *HwDeviceExtension,
  85                 unsigned char modeno,
  86                 u32 *left_margin, u32 *right_margin, u32 *upper_margin,
  87                 u32 *lower_margin, u32 *hsync_len, u32 *vsync_len, u32 *sync,
  88                 u32 *vmode)
  89 {
  90         unsigned short ModeNo = modeno;
  91         unsigned short ModeIdIndex, index = 0;
  92         unsigned short RefreshRateTableIndex = 0;
  93
  94         unsigned short VRE, VBE, VRS, VDE;
  95         unsigned short HRE, HBE, HRS, HDE;
  96         unsigned char sr_data, cr_data, cr_data2;
  97         int B, C, D, F, temp, j;
  98         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  99         if (!XGI_SearchModeID(ModeNo, &ModeIdIndex))
 100                 return 0;
 101         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 102                         ModeIdIndex, XGI_Pr);
 103         index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 104
 105         sr_data = XGI_CRT1Table[index].CR[5];
 106
 107         HDE = (XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3);
 108
 109         cr_data = XGI_CRT1Table[index].CR[3];
 110
 111         /* Horizontal retrace (=sync) start */
 112         HRS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0xC0) << 2);
 113         F = HRS - HDE - 3;
 114
 115         sr_data = XGI_CRT1Table[index].CR[6];
 116
 117         cr_data = XGI_CRT1Table[index].CR[2];
 118
 119         cr_data2 = XGI_CRT1Table[index].CR[4];
 120
 121         /* Horizontal blank end */
 122         HBE = (cr_data & 0x1f) | ((unsigned short) (cr_data2 & 0x80) >> 2)
 123                         | ((unsigned short) (sr_data & 0x03) << 6);
 124
 125         /* Horizontal retrace (=sync) end */
 126         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 127
 128         temp = HBE - ((HDE - 1) & 255);
 129         B = (temp > 0) ? temp : (temp + 256);
 130
 131         temp = HRE - ((HDE + F + 3) & 63);
 132         C = (temp > 0) ? temp : (temp + 64);
 133
 134         D = B - F - C;
 135
 136         *left_margin = D * 8;
 137         *right_margin = F * 8;
 138         *hsync_len = C * 8;
 139
 140         sr_data = XGI_CRT1Table[index].CR[14];
 141
 142         cr_data2 = XGI_CRT1Table[index].CR[9];
 143
 144         VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes;
 145
 146         cr_data = XGI_CRT1Table[index].CR[10];
 147
 148         /* Vertical retrace (=sync) start */
 149         VRS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x04) << 6)
 150                         | ((unsigned short) (cr_data2 & 0x80) << 2)
 151                         | ((unsigned short) (sr_data & 0x08) << 7);
 152         F = VRS + 1 - VDE;
 153
 154         cr_data = XGI_CRT1Table[index].CR[13];
 155
 156         /* Vertical blank end */
 157         VBE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x10) << 4);
 158         temp = VBE - ((VDE - 1) & 511);
 159         B = (temp > 0) ? temp : (temp + 512);
 160
 161         cr_data = XGI_CRT1Table[index].CR[11];
 162
 163         /* Vertical retrace (=sync) end */
 164         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 165         temp = VRE - ((VDE + F - 1) & 31);
 166         C = (temp > 0) ? temp : (temp + 32);
 167
 168         D = B - F - C;
 169
 170         *upper_margin = D;
 171         *lower_margin = F;
 172         *vsync_len = C;
 173
 174         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 175                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 176         else
 177                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 178
 179         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 180                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 181         else
 182                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 183
 184         *vmode = FB_VMODE_NONINTERLACED;
 185         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080)
 186                 *vmode = FB_VMODE_INTERLACED;
 187         else {
 188                 j = 0;
 189                 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
 190                         if (XGI330_EModeIDTable[j].Ext_ModeID ==
 191                             XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
 192                                 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
 193                                     DoubleScanMode) {
 194                                         *vmode = FB_VMODE_DOUBLE;
 195                                 }
 196                                 break;
 197                         }
 198                         j++;
 199                 }
 200         }
 201
 202         return 1;
 203 }
 204
 205 void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 206 {
 207         XGI_Pr->P3c4 = BaseAddr + 0x14;
 208         XGI_Pr->P3d4 = BaseAddr + 0x24;
 209         XGI_Pr->P3c0 = BaseAddr + 0x10;
 210         XGI_Pr->P3ce = BaseAddr + 0x1e;
 211         XGI_Pr->P3c2 = BaseAddr + 0x12;
 212         XGI_Pr->P3cc = BaseAddr + 0x1c;
 213         XGI_Pr->P3ca = BaseAddr + 0x1a;
 214         XGI_Pr->P3c6 = BaseAddr + 0x16;
 215         XGI_Pr->P3c7 = BaseAddr + 0x17;
 216         XGI_Pr->P3c8 = BaseAddr + 0x18;
 217         XGI_Pr->P3c9 = BaseAddr + 0x19;
 218         XGI_Pr->P3da = BaseAddr + 0x2A;
 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         } else {
 591                 pr_info("Unsupported rate %d for %dx%d\n",
 592                        rate, xres, yres);
 593                 return 0;
 594         }
 595 }
 596
 597 static void XGIfb_search_tvstd(const char *name)
 598 {
 599         int i = 0;
 600
 601         if (name == NULL)
 602                 return;
 603
 604         while (XGI_tvtype[i].type_no != -1) {
 605                 if (!strcmp(name, XGI_tvtype[i].name)) {
 606                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 607                         break;
 608                 }
 609                 i++;
 610         }
 611 }
 612
 613 /* ----------- FBDev related routines for all series ----------- */
 614
 615 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 616                              struct fb_var_screeninfo *var)
 617 {
 618         switch (var->bits_per_pixel) {
 619         case 8:
 620                 var->red.offset = var->green.offset = var->blue.offset = 0;
 621                 var->red.length = var->green.length = var->blue.length = 6;
 622                 xgifb_info->video_cmap_len = 256;
 623                 break;
 624         case 16:
 625                 var->red.offset = 11;
 626                 var->red.length = 5;
 627                 var->green.offset = 5;
 628                 var->green.length = 6;
 629                 var->blue.offset = 0;
 630                 var->blue.length = 5;
 631                 var->transp.offset = 0;
 632                 var->transp.length = 0;
 633                 xgifb_info->video_cmap_len = 16;
 634                 break;
 635         case 32:
 636                 var->red.offset = 16;
 637                 var->red.length = 8;
 638                 var->green.offset = 8;
 639                 var->green.length = 8;
 640                 var->blue.offset = 0;
 641                 var->blue.length = 8;
 642                 var->transp.offset = 24;
 643                 var->transp.length = 8;
 644                 xgifb_info->video_cmap_len = 16;
 645                 break;
 646         }
 647 }
 648
 649 /* --------------------- SetMode routines ------------------------- */
 650
 651 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 652 {
 653         u8 cr30 = 0, cr31 = 0;
 654
 655         cr31 = xgifb_reg_get(XGICR, 0x31);
 656         cr31 &= ~0x60;
 657
 658         switch (xgifb_info->display2) {
 659         case XGIFB_DISP_CRT:
 660                 cr30 = (SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE);
 661                 cr31 |= SIS_DRIVER_MODE;
 662                 break;
 663         case XGIFB_DISP_LCD:
 664                 cr30 = (SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE);
 665                 cr31 |= SIS_DRIVER_MODE;
 666                 break;
 667         case XGIFB_DISP_TV:
 668                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 669                         cr30 = (SIS_VB_OUTPUT_HIVISION
 670                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 671                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 672                         cr30 = (SIS_VB_OUTPUT_SVIDEO
 673                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 674                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 675                         cr30 = (SIS_VB_OUTPUT_COMPOSITE
 676                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 677                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 678                         cr30 = (SIS_VB_OUTPUT_SCART
 679                                         | SIS_SIMULTANEOUS_VIEW_ENABLE);
 680                 cr31 |= SIS_DRIVER_MODE;
 681
 682                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 683                         cr31 |= 0x01;
 684                 else
 685                         cr31 &= ~0x01;
 686                 break;
 687         default: /* disable CRT2 */
 688                 cr30 = 0x00;
 689                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 690         }
 691
 692         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 693         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 694         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 695                                                 (xgifb_info->rate_idx & 0x0F));
 696 }
 697
 698 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 699 {
 700         u8 reg;
 701         unsigned char doit = 1;
 702
 703         if (xgifb_info->video_bpp == 8) {
 704                 /*
 705                  * We can't switch off CRT1 on LVDS/Chrontel
 706                  * in 8bpp Modes
 707                  */
 708                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 709                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 710                         doit = 0;
 711                 }
 712                 /*
 713                  * We can't switch off CRT1 on 301B-DH
 714                  * in 8bpp Modes if using LCD
 715                  */
 716                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 717                         doit = 0;
 718         }
 719
 720         /* We can't switch off CRT1 if bridge is in slave mode */
 721         if (xgifb_info->hasVB != HASVB_NONE) {
 722                 reg = xgifb_reg_get(XGIPART1, 0x00);
 723
 724                 if ((reg & 0x50) == 0x10)
 725                         doit = 0;
 726
 727         } else {
 728                 XGIfb_crt1off = 0;
 729         }
 730
 731         reg = xgifb_reg_get(XGICR, 0x17);
 732         if ((XGIfb_crt1off) && (doit))
 733                 reg &= ~0x80;
 734         else
 735                 reg |= 0x80;
 736         xgifb_reg_set(XGICR, 0x17, reg);
 737
 738         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 739
 740         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 741             xgifb_info->hasVB == HASVB_301) {
 742
 743                 reg = xgifb_reg_get(XGIPART4, 0x01);
 744
 745                 if (reg < 0xB0) { /* Set filter for XGI301 */
 746                         int filter_tb;
 747
 748                         switch (xgifb_info->video_width) {
 749                         case 320:
 750                                 filter_tb = (xgifb_info->TV_type ==
 751                                              TVMODE_NTSC) ? 4 : 12;
 752                                 break;
 753                         case 640:
 754                                 filter_tb = (xgifb_info->TV_type ==
 755                                              TVMODE_NTSC) ? 5 : 13;
 756                                 break;
 757                         case 720:
 758                                 filter_tb = (xgifb_info->TV_type ==
 759                                              TVMODE_NTSC) ? 6 : 14;
 760                                 break;
 761                         case 800:
 762                                 filter_tb = (xgifb_info->TV_type ==
 763                                              TVMODE_NTSC) ? 7 : 15;
 764                                 break;
 765                         default:
 766                                 filter_tb = 0;
 767                                 filter = -1;
 768                                 break;
 769                         }
 770                         xgifb_reg_or(XGIPART1,
 771                                      SIS_CRT2_WENABLE_315,
 772                                      0x01);
 773
 774                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 775
 776                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 777
 778                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 779
 780                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 781
 782                                 } else if (xgifb_info->TV_plug
 783                                                 == TVPLUG_COMPOSITE) {
 784
 785                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 786
 787                                         switch (xgifb_info->video_width) {
 788                                         case 640:
 789                                                 xgifb_reg_set(XGIPART2,
 790                                                               0x35,
 791                                                               0xEB);
 792                                                 xgifb_reg_set(XGIPART2,
 793                                                               0x36,
 794                                                               0x04);
 795                                                 xgifb_reg_set(XGIPART2,
 796                                                               0x37,
 797                                                               0x25);
 798                                                 xgifb_reg_set(XGIPART2,
 799                                                               0x38,
 800                                                               0x18);
 801                                                 break;
 802                                         case 720:
 803                                                 xgifb_reg_set(XGIPART2,
 804                                                               0x35,
 805                                                               0xEE);
 806                                                 xgifb_reg_set(XGIPART2,
 807                                                               0x36,
 808                                                               0x0C);
 809                                                 xgifb_reg_set(XGIPART2,
 810                                                               0x37,
 811                                                               0x22);
 812                                                 xgifb_reg_set(XGIPART2,
 813                                                               0x38,
 814                                                               0x08);
 815                                                 break;
 816                                         case 800:
 817                                                 xgifb_reg_set(XGIPART2,
 818                                                               0x35,
 819                                                               0xEB);
 820                                                 xgifb_reg_set(XGIPART2,
 821                                                               0x36,
 822                                                               0x15);
 823                                                 xgifb_reg_set(XGIPART2,
 824                                                               0x37,
 825                                                               0x25);
 826                                                 xgifb_reg_set(XGIPART2,
 827                                                               0x38,
 828                                                               0xF6);
 829                                                 break;
 830                                         }
 831                                 }
 832
 833                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 834
 835                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 836
 837                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 838
 839                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 840
 841                                 } else if (xgifb_info->TV_plug
 842                                                 == TVPLUG_COMPOSITE) {
 843
 844                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 845
 846                                         switch (xgifb_info->video_width) {
 847                                         case 640:
 848                                                 xgifb_reg_set(XGIPART2,
 849                                                               0x35,
 850                                                               0xF1);
 851                                                 xgifb_reg_set(XGIPART2,
 852                                                               0x36,
 853                                                               0xF7);
 854                                                 xgifb_reg_set(XGIPART2,
 855                                                               0x37,
 856                                                               0x1F);
 857                                                 xgifb_reg_set(XGIPART2,
 858                                                               0x38,
 859                                                               0x32);
 860                                                 break;
 861                                         case 720:
 862                                                 xgifb_reg_set(XGIPART2,
 863                                                               0x35,
 864                                                               0xF3);
 865                                                 xgifb_reg_set(XGIPART2,
 866                                                               0x36,
 867                                                               0x00);
 868                                                 xgifb_reg_set(XGIPART2,
 869                                                               0x37,
 870                                                               0x1D);
 871                                                 xgifb_reg_set(XGIPART2,
 872                                                               0x38,
 873                                                               0x20);
 874                                                 break;
 875                                         case 800:
 876                                                 xgifb_reg_set(XGIPART2,
 877                                                               0x35,
 878                                                               0xFC);
 879                                                 xgifb_reg_set(XGIPART2,
 880                                                               0x36,
 881                                                               0xFB);
 882                                                 xgifb_reg_set(XGIPART2,
 883                                                               0x37,
 884                                                               0x14);
 885                                                 xgifb_reg_set(XGIPART2,
 886                                                               0x38,
 887                                                               0x2A);
 888                                                 break;
 889                                         }
 890                                 }
 891                         }
 892
 893                         if ((filter >= 0) && (filter <= 7)) {
 894                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 895                                          filter_tb, filter,
 896                                          4, XGI_TV_filter[filter_tb].
 897                                                    filter[filter]);
 898                                 xgifb_reg_set(
 899                                         XGIPART2,
 900                                         0x35,
 901                                         (XGI_TV_filter[filter_tb].
 902                                                 filter[filter][0]));
 903                                 xgifb_reg_set(
 904                                         XGIPART2,
 905                                         0x36,
 906                                         (XGI_TV_filter[filter_tb].
 907                                                 filter[filter][1]));
 908                                 xgifb_reg_set(
 909                                         XGIPART2,
 910                                         0x37,
 911                                         (XGI_TV_filter[filter_tb].
 912                                                 filter[filter][2]));
 913                                 xgifb_reg_set(
 914                                         XGIPART2,
 915                                         0x38,
 916                                         (XGI_TV_filter[filter_tb].
 917                                                 filter[filter][3]));
 918                         }
 919                 }
 920         }
 921 }
 922
 923 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 924                 struct fb_info *info)
 925 {
 926         struct xgifb_video_info *xgifb_info = info->par;
 927         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 928         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 929                         + var->hsync_len;
 930         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 931                         + var->vsync_len;
 932 #if defined(__powerpc__)
 933         u8 cr_data;
 934 #endif
 935         unsigned int drate = 0, hrate = 0;
 936         int found_mode = 0;
 937         int old_mode;
 938
 939         info->var.xres_virtual = var->xres_virtual;
 940         info->var.yres_virtual = var->yres_virtual;
 941         info->var.bits_per_pixel = var->bits_per_pixel;
 942
 943         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 944                 vtotal <<= 1;
 945         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 946                 vtotal <<= 2;
 947
 948         if (!htotal || !vtotal) {
 949                 pr_debug("Invalid 'var' information\n");
 950                 return -EINVAL;
 951         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 952                         var->pixclock, htotal, vtotal);
 953
 954         if (var->pixclock && htotal && vtotal) {
 955                 drate = 1000000000 / var->pixclock;
 956                 hrate = (drate * 1000) / htotal;
 957                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 958                                 / vtotal);
 959         } else {
 960                 xgifb_info->refresh_rate = 60;
 961         }
 962
 963         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 964                var->xres,
 965                var->yres,
 966                var->bits_per_pixel,
 967                xgifb_info->refresh_rate);
 968
 969         old_mode = xgifb_info->mode_idx;
 970         xgifb_info->mode_idx = 0;
 971
 972         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
 973                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
 974                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
 975                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
 976                     (XGIbios_mode[xgifb_info->mode_idx].bpp
 977                                                 == var->bits_per_pixel)) {
 978                         found_mode = 1;
 979                         break;
 980                 }
 981                 xgifb_info->mode_idx++;
 982         }
 983
 984         if (found_mode)
 985                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
 986                                                         xgifb_info->mode_idx);
 987         else
 988                 xgifb_info->mode_idx = -1;
 989
 990         if (xgifb_info->mode_idx < 0) {
 991                 pr_err("Mode %dx%dx%d not supported\n",
 992                        var->xres, var->yres, var->bits_per_pixel);
 993                 xgifb_info->mode_idx = old_mode;
 994                 return -EINVAL;
 995         }
 996
 997         if (XGIfb_search_refresh_rate(xgifb_info,
 998                                       xgifb_info->refresh_rate) == 0) {
 999                 xgifb_info->rate_idx = 1;
1000                 xgifb_info->refresh_rate = 60;
1001         }
1002
1003         if (isactive) {
1004
1005                 XGIfb_pre_setmode(xgifb_info);
1006                 if (XGISetModeNew(xgifb_info, hw_info,
1007                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1008                                         == 0) {
1009                         pr_err("Setting mode[0x%x] failed\n",
1010                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1011                         return -EINVAL;
1012                 }
1013                 info->fix.line_length = ((info->var.xres_virtual
1014                                 * info->var.bits_per_pixel) >> 6);
1015
1016                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1017
1018                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1019                 xgifb_reg_set(XGISR,
1020                               0x0E,
1021                               (info->fix.line_length & 0xff00) >> 8);
1022
1023                 XGIfb_post_setmode(xgifb_info);
1024
1025                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1026                          XGIbios_mode[xgifb_info->mode_idx].xres,
1027                          XGIbios_mode[xgifb_info->mode_idx].yres,
1028                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1029                          xgifb_info->refresh_rate);
1030
1031                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1032                 xgifb_info->video_vwidth = info->var.xres_virtual;
1033                 xgifb_info->video_width =
1034                         XGIbios_mode[xgifb_info->mode_idx].xres;
1035                 xgifb_info->video_vheight = info->var.yres_virtual;
1036                 xgifb_info->video_height =
1037                         XGIbios_mode[xgifb_info->mode_idx].yres;
1038                 xgifb_info->org_x = xgifb_info->org_y = 0;
1039                 xgifb_info->video_linelength = info->var.xres_virtual
1040                                 * (xgifb_info->video_bpp >> 3);
1041                 switch (xgifb_info->video_bpp) {
1042                 case 8:
1043                         xgifb_info->DstColor = 0x0000;
1044                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1045                         xgifb_info->video_cmap_len = 256;
1046 #if defined(__powerpc__)
1047                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1048                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1049 #endif
1050                         break;
1051                 case 16:
1052                         xgifb_info->DstColor = 0x8000;
1053                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1054 #if defined(__powerpc__)
1055                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1056                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1057 #endif
1058                         xgifb_info->video_cmap_len = 16;
1059                         break;
1060                 case 32:
1061                         xgifb_info->DstColor = 0xC000;
1062                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1063                         xgifb_info->video_cmap_len = 16;
1064 #if defined(__powerpc__)
1065                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1066                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1067 #endif
1068                         break;
1069                 default:
1070                         xgifb_info->video_cmap_len = 16;
1071                         pr_err("Unsupported depth %d\n",
1072                                xgifb_info->video_bpp);
1073                         break;
1074                 }
1075         }
1076         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1077
1078         dumpVGAReg();
1079         return 0;
1080 }
1081
1082 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1083 {
1084         struct xgifb_video_info *xgifb_info = info->par;
1085         unsigned int base;
1086
1087         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1088
1089         /* calculate base bpp dep. */
1090         switch (info->var.bits_per_pixel) {
1091         case 16:
1092                 base >>= 1;
1093                 break;
1094         case 32:
1095                 break;
1096         case 8:
1097         default:
1098                 base >>= 2;
1099                 break;
1100         }
1101
1102         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1103
1104         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1105         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1106         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1107         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1108         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1109
1110         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1111                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1112                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1113                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1114                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1115                 xgifb_reg_and_or(XGIPART1,
1116                                  0x02,
1117                                  0x7F,
1118                                  ((base >> 24) & 0x01) << 7);
1119         }
1120         return 0;
1121 }
1122
1123 static int XGIfb_open(struct fb_info *info, int user)
1124 {
1125         return 0;
1126 }
1127
1128 static int XGIfb_release(struct fb_info *info, int user)
1129 {
1130         return 0;
1131 }
1132
1133 /* similar to sisfb_get_cmap_len */
1134 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1135 {
1136         return (var->bits_per_pixel == 8) ? 256 : 16;
1137 }
1138
1139 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1140                 unsigned blue, unsigned transp, struct fb_info *info)
1141 {
1142         struct xgifb_video_info *xgifb_info = info->par;
1143
1144         if (regno >= XGIfb_get_cmap_len(&info->var))
1145                 return 1;
1146
1147         switch (info->var.bits_per_pixel) {
1148         case 8:
1149                 outb(regno, XGIDACA);
1150                 outb((red >> 10), XGIDACD);
1151                 outb((green >> 10), XGIDACD);
1152                 outb((blue >> 10), XGIDACD);
1153                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1154                         outb(regno, XGIDAC2A);
1155                         outb((red >> 8), XGIDAC2D);
1156                         outb((green >> 8), XGIDAC2D);
1157                         outb((blue >> 8), XGIDAC2D);
1158                 }
1159                 break;
1160         case 16:
1161                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1162                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1163                                 >> 11);
1164                 break;
1165         case 32:
1166                 red >>= 8;
1167                 green >>= 8;
1168                 blue >>= 8;
1169                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1170                                 << 8) | (blue);
1171                 break;
1172         }
1173         return 0;
1174 }
1175
1176 /* ----------- FBDev related routines for all series ---------- */
1177
1178 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1179                 struct fb_info *info)
1180 {
1181         struct xgifb_video_info *xgifb_info = info->par;
1182
1183         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1184
1185         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1186
1187         /* if register_framebuffer has been called, we must lock */
1188         if (atomic_read(&info->count))
1189                 mutex_lock(&info->mm_lock);
1190
1191         fix->smem_start = xgifb_info->video_base;
1192         fix->smem_len = xgifb_info->video_size;
1193
1194         /* if register_framebuffer has been called, we can unlock */
1195         if (atomic_read(&info->count))
1196                 mutex_unlock(&info->mm_lock);
1197
1198         fix->type = FB_TYPE_PACKED_PIXELS;
1199         fix->type_aux = 0;
1200         if (xgifb_info->video_bpp == 8)
1201                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1202         else
1203                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1204         fix->xpanstep = 0;
1205         if (XGIfb_ypan)
1206                 fix->ypanstep = 1;
1207         fix->ywrapstep = 0;
1208         fix->line_length = xgifb_info->video_linelength;
1209         fix->mmio_start = xgifb_info->mmio_base;
1210         fix->mmio_len = xgifb_info->mmio_size;
1211         fix->accel = FB_ACCEL_SIS_XABRE;
1212
1213         return 0;
1214 }
1215
1216 static int XGIfb_set_par(struct fb_info *info)
1217 {
1218         int err;
1219
1220         err = XGIfb_do_set_var(&info->var, 1, info);
1221         if (err)
1222                 return err;
1223         XGIfb_get_fix(&info->fix, -1, info);
1224         return 0;
1225 }
1226
1227 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1228 {
1229         struct xgifb_video_info *xgifb_info = info->par;
1230         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1231                         + var->hsync_len;
1232         unsigned int vtotal = 0;
1233         unsigned int drate = 0, hrate = 0;
1234         int found_mode = 0;
1235         int refresh_rate, search_idx;
1236
1237         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1238                 vtotal = var->upper_margin + var->yres + var->lower_margin
1239                                 + var->vsync_len;
1240                 vtotal <<= 1;
1241         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1242                 vtotal = var->upper_margin + var->yres + var->lower_margin
1243                                 + var->vsync_len;
1244                 vtotal <<= 2;
1245         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1246                 vtotal = var->upper_margin + (var->yres / 2)
1247                                 + var->lower_margin + var->vsync_len;
1248         } else
1249                 vtotal = var->upper_margin + var->yres + var->lower_margin
1250                                 + var->vsync_len;
1251
1252         if (!(htotal) || !(vtotal)) {
1253                 pr_debug("No valid timing data\n");
1254                 return -EINVAL;
1255         }
1256
1257         if (var->pixclock && htotal && vtotal) {
1258                 drate = 1000000000 / var->pixclock;
1259                 hrate = (drate * 1000) / htotal;
1260                 xgifb_info->refresh_rate =
1261                         (unsigned int) (hrate * 2 / vtotal);
1262                 pr_debug(
1263                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1264                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1265                         __func__, var->pixclock, htotal, vtotal,
1266                         __func__, drate, hrate, xgifb_info->refresh_rate);
1267         } else {
1268                 xgifb_info->refresh_rate = 60;
1269         }
1270
1271         /* Calculation wrong for 1024x600 - force it to 60Hz */
1272         if ((var->xres == 1024) && (var->yres == 600))
1273                 refresh_rate = 60;
1274
1275         search_idx = 0;
1276         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1277                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1278                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1279                         (XGIbios_mode[search_idx].yres == var->yres) &&
1280                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1281                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1282                                 found_mode = 1;
1283                                 break;
1284                         }
1285                 }
1286                 search_idx++;
1287         }
1288
1289         if (!found_mode) {
1290
1291                 pr_err("%dx%dx%d is no valid mode\n",
1292                         var->xres, var->yres, var->bits_per_pixel);
1293                 search_idx = 0;
1294                 while (XGIbios_mode[search_idx].mode_no != 0) {
1295                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1296                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1297                             (var->bits_per_pixel ==
1298                              XGIbios_mode[search_idx].bpp)) {
1299                                 if (XGIfb_validate_mode(xgifb_info,
1300                                                         search_idx) > 0) {
1301                                         found_mode = 1;
1302                                         break;
1303                                 }
1304                         }
1305                         search_idx++;
1306                 }
1307                 if (found_mode) {
1308                         var->xres = XGIbios_mode[search_idx].xres;
1309                         var->yres = XGIbios_mode[search_idx].yres;
1310                         pr_debug("Adapted to mode %dx%dx%d\n",
1311                                 var->xres, var->yres, var->bits_per_pixel);
1312
1313                 } else {
1314                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1315                                 var->xres, var->yres, var->bits_per_pixel);
1316                         return -EINVAL;
1317                 }
1318         }
1319
1320         /* Adapt RGB settings */
1321         XGIfb_bpp_to_var(xgifb_info, var);
1322
1323         if (!XGIfb_ypan) {
1324                 if (var->xres != var->xres_virtual)
1325                         var->xres_virtual = var->xres;
1326                 if (var->yres != var->yres_virtual)
1327                         var->yres_virtual = var->yres;
1328         }
1329
1330         /* Truncate offsets to maximum if too high */
1331         if (var->xoffset > var->xres_virtual - var->xres)
1332                 var->xoffset = var->xres_virtual - var->xres - 1;
1333
1334         if (var->yoffset > var->yres_virtual - var->yres)
1335                 var->yoffset = var->yres_virtual - var->yres - 1;
1336
1337         /* Set everything else to 0 */
1338         var->red.msb_right =
1339         var->green.msb_right =
1340         var->blue.msb_right =
1341         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1342
1343         return 0;
1344 }
1345
1346 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1347                 struct fb_info *info)
1348 {
1349         int err;
1350
1351         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1352                 return -EINVAL;
1353         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1354                 return -EINVAL;
1355
1356         if (var->vmode & FB_VMODE_YWRAP) {
1357                 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1358                         return -EINVAL;
1359         } else if (var->xoffset + info->var.xres > info->var.xres_virtual
1360                                 || var->yoffset + info->var.yres
1361                                                 > info->var.yres_virtual) {
1362                 return -EINVAL;
1363         }
1364         err = XGIfb_pan_var(var, info);
1365         if (err < 0)
1366                 return err;
1367
1368         info->var.xoffset = var->xoffset;
1369         info->var.yoffset = var->yoffset;
1370         if (var->vmode & FB_VMODE_YWRAP)
1371                 info->var.vmode |= FB_VMODE_YWRAP;
1372         else
1373                 info->var.vmode &= ~FB_VMODE_YWRAP;
1374
1375         return 0;
1376 }
1377
1378 static int XGIfb_blank(int blank, struct fb_info *info)
1379 {
1380         struct xgifb_video_info *xgifb_info = info->par;
1381         u8 reg;
1382
1383         reg = xgifb_reg_get(XGICR, 0x17);
1384
1385         if (blank > 0)
1386                 reg &= 0x7f;
1387         else
1388                 reg |= 0x80;
1389
1390         xgifb_reg_set(XGICR, 0x17, reg);
1391         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1392         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1393         return 0;
1394 }
1395
1396 static struct fb_ops XGIfb_ops = {
1397         .owner = THIS_MODULE,
1398         .fb_open = XGIfb_open,
1399         .fb_release = XGIfb_release,
1400         .fb_check_var = XGIfb_check_var,
1401         .fb_set_par = XGIfb_set_par,
1402         .fb_setcolreg = XGIfb_setcolreg,
1403         .fb_pan_display = XGIfb_pan_display,
1404         .fb_blank = XGIfb_blank,
1405         .fb_fillrect = cfb_fillrect,
1406         .fb_copyarea = cfb_copyarea,
1407         .fb_imageblit = cfb_imageblit,
1408 };
1409
1410 /* ---------------- Chip generation dependent routines ---------------- */
1411
1412 /* for XGI 315/550/650/740/330 */
1413
1414 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1415 {
1416
1417         u8 ChannelNum, tmp;
1418         u8 reg = 0;
1419
1420         /* xorg driver sets 32MB * 1 channel */
1421         if (xgifb_info->chip == XG27)
1422                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1423
1424         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1425         if (!reg)
1426                 return -1;
1427
1428         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1429         case XGI_DRAM_SIZE_1MB:
1430                 xgifb_info->video_size = 0x100000;
1431                 break;
1432         case XGI_DRAM_SIZE_2MB:
1433                 xgifb_info->video_size = 0x200000;
1434                 break;
1435         case XGI_DRAM_SIZE_4MB:
1436                 xgifb_info->video_size = 0x400000;
1437                 break;
1438         case XGI_DRAM_SIZE_8MB:
1439                 xgifb_info->video_size = 0x800000;
1440                 break;
1441         case XGI_DRAM_SIZE_16MB:
1442                 xgifb_info->video_size = 0x1000000;
1443                 break;
1444         case XGI_DRAM_SIZE_32MB:
1445                 xgifb_info->video_size = 0x2000000;
1446                 break;
1447         case XGI_DRAM_SIZE_64MB:
1448                 xgifb_info->video_size = 0x4000000;
1449                 break;
1450         case XGI_DRAM_SIZE_128MB:
1451                 xgifb_info->video_size = 0x8000000;
1452                 break;
1453         case XGI_DRAM_SIZE_256MB:
1454                 xgifb_info->video_size = 0x10000000;
1455                 break;
1456         default:
1457                 return -1;
1458         }
1459
1460         tmp = (reg & 0x0c) >> 2;
1461         switch (xgifb_info->chip) {
1462         case XG20:
1463         case XG21:
1464         case XG27:
1465                 ChannelNum = 1;
1466                 break;
1467
1468         case XG42:
1469                 if (reg & 0x04)
1470                         ChannelNum = 2;
1471                 else
1472                         ChannelNum = 1;
1473                 break;
1474
1475         case XG40:
1476         default:
1477                 if (tmp == 2)
1478                         ChannelNum = 2;
1479                 else if (tmp == 3)
1480                         ChannelNum = 3;
1481                 else
1482                         ChannelNum = 1;
1483                 break;
1484         }
1485
1486         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1487
1488         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1489                reg,
1490                xgifb_info->video_size, ChannelNum);
1491         return 0;
1492
1493 }
1494
1495 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1496 {
1497         u8 cr32, temp = 0;
1498
1499         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1500
1501         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1502
1503         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1504                 XGIfb_crt1off = 0;
1505         else {
1506                 if (cr32 & 0x5F)
1507                         XGIfb_crt1off = 1;
1508                 else
1509                         XGIfb_crt1off = 0;
1510         }
1511
1512         if (!xgifb_info->display2_force) {
1513                 if (cr32 & SIS_VB_TV)
1514                         xgifb_info->display2 = XGIFB_DISP_TV;
1515                 else if (cr32 & SIS_VB_LCD)
1516                         xgifb_info->display2 = XGIFB_DISP_LCD;
1517                 else if (cr32 & SIS_VB_CRT2)
1518                         xgifb_info->display2 = XGIFB_DISP_CRT;
1519                 else
1520                         xgifb_info->display2 = XGIFB_DISP_NONE;
1521         }
1522
1523         if (XGIfb_tvplug != -1)
1524                 /* Override with option */
1525                 xgifb_info->TV_plug = XGIfb_tvplug;
1526         else if (cr32 & SIS_VB_HIVISION) {
1527                 xgifb_info->TV_type = TVMODE_HIVISION;
1528                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1529         } else if (cr32 & SIS_VB_SVIDEO)
1530                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1531         else if (cr32 & SIS_VB_COMPOSITE)
1532                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1533         else if (cr32 & SIS_VB_SCART)
1534                 xgifb_info->TV_plug = TVPLUG_SCART;
1535
1536         if (xgifb_info->TV_type == 0) {
1537                 temp = xgifb_reg_get(XGICR, 0x38);
1538                 if (temp & 0x10)
1539                         xgifb_info->TV_type = TVMODE_PAL;
1540                 else
1541                         xgifb_info->TV_type = TVMODE_NTSC;
1542         }
1543
1544         /* Copy forceCRT1 option to CRT1off if option is given */
1545         if (XGIfb_forcecrt1 != -1) {
1546                 if (XGIfb_forcecrt1)
1547                         XGIfb_crt1off = 0;
1548                 else
1549                         XGIfb_crt1off = 1;
1550         }
1551 }
1552
1553 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1554 {
1555         u8 vb_chipid;
1556
1557         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1558         switch (vb_chipid) {
1559         case 0x01:
1560                 xgifb_info->hasVB = HASVB_301;
1561                 break;
1562         case 0x02:
1563                 xgifb_info->hasVB = HASVB_302;
1564                 break;
1565         default:
1566                 xgifb_info->hasVB = HASVB_NONE;
1567                 return 0;
1568         }
1569         return 1;
1570 }
1571
1572 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1573 {
1574         u8 reg;
1575
1576         if (!XGIfb_has_VB(xgifb_info)) {
1577                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1578                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1579                 case SIS_EXTERNAL_CHIP_LVDS:
1580                         xgifb_info->hasVB = HASVB_LVDS;
1581                         break;
1582                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1583                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1584                         break;
1585                 default:
1586                         break;
1587                 }
1588         }
1589 }
1590
1591 static int __init xgifb_optval(char *fullopt, int validx)
1592 {
1593         unsigned long lres;
1594
1595         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1596                 pr_err("Invalid value for option: %s\n", fullopt);
1597                 return 0;
1598         }
1599         return lres;
1600 }
1601
1602 static int __init XGIfb_setup(char *options)
1603 {
1604         char *this_opt;
1605
1606         if (!options || !*options)
1607                 return 0;
1608
1609         pr_info("Options: %s\n", options);
1610
1611         while ((this_opt = strsep(&options, ",")) != NULL) {
1612
1613                 if (!*this_opt)
1614                         continue;
1615
1616                 if (!strncmp(this_opt, "mode:", 5)) {
1617                         mode = this_opt + 5;
1618                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1619                         vesa = xgifb_optval(this_opt, 5);
1620                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1621                         refresh_rate = xgifb_optval(this_opt, 6);
1622                 } else if (!strncmp(this_opt, "rate:", 5)) {
1623                         refresh_rate = xgifb_optval(this_opt, 5);
1624                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1625                         XGIfb_crt1off = 1;
1626                 } else if (!strncmp(this_opt, "filter:", 7)) {
1627                         filter = xgifb_optval(this_opt, 7);
1628                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1629                         XGIfb_search_crt2type(this_opt + 14);
1630                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1631                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1632                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1633                         XGIfb_search_tvstd(this_opt + 7);
1634                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1635                         XGIfb_search_tvstd(this_opt + 7);
1636                 } else if (!strncmp(this_opt, "dstn", 4)) {
1637                         enable_dstn = 1;
1638                         /* DSTN overrules forcecrt2type */
1639                         XGIfb_crt2type = XGIFB_DISP_LCD;
1640                 } else if (!strncmp(this_opt, "noypan", 6)) {
1641                         XGIfb_ypan = 0;
1642                 } else {
1643                         mode = this_opt;
1644                 }
1645         }
1646         return 0;
1647 }
1648
1649 static int xgifb_probe(struct pci_dev *pdev,
1650                 const struct pci_device_id *ent)
1651 {
1652         u8 reg, reg1;
1653         u8 CR48, CR38;
1654         int ret;
1655         struct fb_info *fb_info;
1656         struct xgifb_video_info *xgifb_info;
1657         struct xgi_hw_device_info *hw_info;
1658         unsigned long video_size_max;
1659
1660         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1661         if (!fb_info)
1662                 return -ENOMEM;
1663
1664         xgifb_info = fb_info->par;
1665         hw_info = &xgifb_info->hw_info;
1666         xgifb_info->fb_info = fb_info;
1667         xgifb_info->chip_id = pdev->device;
1668         pci_read_config_byte(pdev,
1669                              PCI_REVISION_ID,
1670                              &xgifb_info->revision_id);
1671         hw_info->jChipRevision = xgifb_info->revision_id;
1672
1673         xgifb_info->pcibus = pdev->bus->number;
1674         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1675         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1676         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1677         xgifb_info->subsysdevice = pdev->subsystem_device;
1678
1679         video_size_max = pci_resource_len(pdev, 0);
1680         xgifb_info->video_base = pci_resource_start(pdev, 0);
1681         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1682         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1683         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1684         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1685                  (u64) pci_resource_start(pdev, 2),
1686                  xgifb_info->vga_base);
1687
1688         if (pci_enable_device(pdev)) {
1689                 ret = -EIO;
1690                 goto error;
1691         }
1692
1693         if (XGIfb_crt2type != -1) {
1694                 xgifb_info->display2 = XGIfb_crt2type;
1695                 xgifb_info->display2_force = true;
1696         }
1697
1698         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1699
1700         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1701         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1702
1703         if (reg1 != 0xa1) { /*I/O error */
1704                 dev_err(&pdev->dev, "I/O error\n");
1705                 ret = -EIO;
1706                 goto error_disable;
1707         }
1708
1709         switch (xgifb_info->chip_id) {
1710         case PCI_DEVICE_ID_XGI_20:
1711                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1712                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1713                 if (CR48&GPIOG_READ)
1714                         xgifb_info->chip = XG21;
1715                 else
1716                         xgifb_info->chip = XG20;
1717                 break;
1718         case PCI_DEVICE_ID_XGI_40:
1719                 xgifb_info->chip = XG40;
1720                 break;
1721         case PCI_DEVICE_ID_XGI_42:
1722                 xgifb_info->chip = XG42;
1723                 break;
1724         case PCI_DEVICE_ID_XGI_27:
1725                 xgifb_info->chip = XG27;
1726                 break;
1727         default:
1728                 ret = -ENODEV;
1729                 goto error_disable;
1730         }
1731
1732         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1733         hw_info->jChipType = xgifb_info->chip;
1734
1735         if (XGIfb_get_dram_size(xgifb_info)) {
1736                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1737                                                 SZ_16M);
1738         } else if (xgifb_info->video_size > video_size_max) {
1739                 xgifb_info->video_size = video_size_max;
1740         }
1741
1742         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1743         xgifb_reg_or(XGISR,
1744                      IND_SIS_PCI_ADDRESS_SET,
1745                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1746         /* Enable 2D accelerator engine */
1747         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1748
1749         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1750
1751         if (!request_mem_region(xgifb_info->video_base,
1752                                 xgifb_info->video_size,
1753                                 "XGIfb FB")) {
1754                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1755                        xgifb_info->video_size);
1756                 dev_err(&pdev->dev,
1757                         "Fatal error: Unable to reserve frame buffer memory. "
1758                         "Is there another framebuffer driver active?\n");
1759                 ret = -ENODEV;
1760                 goto error_disable;
1761         }
1762
1763         if (!request_mem_region(xgifb_info->mmio_base,
1764                                 xgifb_info->mmio_size,
1765                                 "XGIfb MMIO")) {
1766                 dev_err(&pdev->dev,
1767                         "Fatal error: Unable to reserve MMIO region\n");
1768                 ret = -ENODEV;
1769                 goto error_0;
1770         }
1771
1772         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1773         ioremap(xgifb_info->video_base, xgifb_info->video_size);
1774         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1775                                             xgifb_info->mmio_size);
1776
1777         dev_info(&pdev->dev,
1778                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1779                  (u64) xgifb_info->video_base,
1780                  xgifb_info->video_vbase,
1781                  xgifb_info->video_size / 1024);
1782
1783         dev_info(&pdev->dev,
1784                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1785                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1786                  xgifb_info->mmio_size / 1024);
1787
1788         pci_set_drvdata(pdev, xgifb_info);
1789         if (!XGIInitNew(pdev))
1790                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1791
1792         xgifb_info->mtrr = -1;
1793
1794         xgifb_info->hasVB = HASVB_NONE;
1795         if ((xgifb_info->chip == XG20) ||
1796             (xgifb_info->chip == XG27)) {
1797                 xgifb_info->hasVB = HASVB_NONE;
1798         } else if (xgifb_info->chip == XG21) {
1799                 CR38 = xgifb_reg_get(XGICR, 0x38);
1800                 if ((CR38&0xE0) == 0xC0)
1801                         xgifb_info->display2 = XGIFB_DISP_LCD;
1802                 else if ((CR38&0xE0) == 0x60)
1803                         xgifb_info->hasVB = HASVB_CHRONTEL;
1804                 else
1805                         xgifb_info->hasVB = HASVB_NONE;
1806         } else {
1807                 XGIfb_get_VB_type(xgifb_info);
1808         }
1809
1810         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1811
1812         hw_info->ulExternalChip = 0;
1813
1814         switch (xgifb_info->hasVB) {
1815         case HASVB_301:
1816                 reg = xgifb_reg_get(XGIPART4, 0x01);
1817                 if (reg >= 0xE0) {
1818                         hw_info->ujVBChipID = VB_CHIP_302LV;
1819                         dev_info(&pdev->dev,
1820                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1821                                  reg);
1822                 } else if (reg >= 0xD0) {
1823                         hw_info->ujVBChipID = VB_CHIP_301LV;
1824                         dev_info(&pdev->dev,
1825                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1826                                  reg);
1827                 } else {
1828                         hw_info->ujVBChipID = VB_CHIP_301;
1829                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1830                 }
1831                 break;
1832         case HASVB_302:
1833                 reg = xgifb_reg_get(XGIPART4, 0x01);
1834                 if (reg >= 0xE0) {
1835                         hw_info->ujVBChipID = VB_CHIP_302LV;
1836                         dev_info(&pdev->dev,
1837                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1838                                  reg);
1839                 } else if (reg >= 0xD0) {
1840                         hw_info->ujVBChipID = VB_CHIP_301LV;
1841                         dev_info(&pdev->dev,
1842                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1843                                  reg);
1844                 } else if (reg >= 0xB0) {
1845                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1846
1847                         hw_info->ujVBChipID = VB_CHIP_302B;
1848
1849                 } else {
1850                         hw_info->ujVBChipID = VB_CHIP_302;
1851                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1852                 }
1853                 break;
1854         case HASVB_LVDS:
1855                 hw_info->ulExternalChip = 0x1;
1856                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1857                 break;
1858         case HASVB_TRUMPION:
1859                 hw_info->ulExternalChip = 0x2;
1860                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1861                 break;
1862         case HASVB_CHRONTEL:
1863                 hw_info->ulExternalChip = 0x4;
1864                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1865                 break;
1866         case HASVB_LVDS_CHRONTEL:
1867                 hw_info->ulExternalChip = 0x5;
1868                 dev_info(&pdev->dev,
1869                          "LVDS transmitter and Chrontel TV encoder detected\n");
1870                 break;
1871         default:
1872                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1873                 break;
1874         }
1875
1876         if (xgifb_info->hasVB != HASVB_NONE)
1877                 XGIfb_detect_VB(xgifb_info);
1878         else if (xgifb_info->chip != XG21)
1879                 xgifb_info->display2 = XGIFB_DISP_NONE;
1880
1881         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1882                 if (!enable_dstn) {
1883                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1884                         reg &= 0x0f;
1885                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1886                 }
1887         }
1888
1889         xgifb_info->mode_idx = -1;
1890
1891         if (mode)
1892                 XGIfb_search_mode(xgifb_info, mode);
1893         else if (vesa != -1)
1894                 XGIfb_search_vesamode(xgifb_info, vesa);
1895
1896         if (xgifb_info->mode_idx >= 0)
1897                 xgifb_info->mode_idx =
1898                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1899
1900         if (xgifb_info->mode_idx < 0) {
1901                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1902                     xgifb_info->chip == XG21)
1903                         xgifb_info->mode_idx =
1904                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1905                 else
1906                         xgifb_info->mode_idx = DEFAULT_MODE;
1907         }
1908
1909         if (xgifb_info->mode_idx < 0) {
1910                 dev_err(&pdev->dev, "No supported video mode found\n");
1911                 ret = -EINVAL;
1912                 goto error_1;
1913         }
1914
1915         /* set default refresh rate */
1916         xgifb_info->refresh_rate = refresh_rate;
1917         if (xgifb_info->refresh_rate == 0)
1918                 xgifb_info->refresh_rate = 60;
1919         if (XGIfb_search_refresh_rate(xgifb_info,
1920                         xgifb_info->refresh_rate) == 0) {
1921                 xgifb_info->rate_idx = 1;
1922                 xgifb_info->refresh_rate = 60;
1923         }
1924
1925         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1926         xgifb_info->video_vwidth =
1927                 xgifb_info->video_width =
1928                         XGIbios_mode[xgifb_info->mode_idx].xres;
1929         xgifb_info->video_vheight =
1930                 xgifb_info->video_height =
1931                         XGIbios_mode[xgifb_info->mode_idx].yres;
1932         xgifb_info->org_x = xgifb_info->org_y = 0;
1933         xgifb_info->video_linelength =
1934                 xgifb_info->video_width *
1935                 (xgifb_info->video_bpp >> 3);
1936         switch (xgifb_info->video_bpp) {
1937         case 8:
1938                 xgifb_info->DstColor = 0x0000;
1939                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1940                 xgifb_info->video_cmap_len = 256;
1941                 break;
1942         case 16:
1943                 xgifb_info->DstColor = 0x8000;
1944                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1945                 xgifb_info->video_cmap_len = 16;
1946                 break;
1947         case 32:
1948                 xgifb_info->DstColor = 0xC000;
1949                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1950                 xgifb_info->video_cmap_len = 16;
1951                 break;
1952         default:
1953                 xgifb_info->video_cmap_len = 16;
1954                 pr_info("Unsupported depth %d\n",
1955                        xgifb_info->video_bpp);
1956                 break;
1957         }
1958
1959         pr_info("Default mode is %dx%dx%d (%dHz)\n",
1960                xgifb_info->video_width,
1961                xgifb_info->video_height,
1962                xgifb_info->video_bpp,
1963                xgifb_info->refresh_rate);
1964
1965         fb_info->var.red.length         = 8;
1966         fb_info->var.green.length       = 8;
1967         fb_info->var.blue.length        = 8;
1968         fb_info->var.activate           = FB_ACTIVATE_NOW;
1969         fb_info->var.height             = -1;
1970         fb_info->var.width              = -1;
1971         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
1972         fb_info->var.xres               = xgifb_info->video_width;
1973         fb_info->var.xres_virtual       = xgifb_info->video_width;
1974         fb_info->var.yres               = xgifb_info->video_height;
1975         fb_info->var.yres_virtual       = xgifb_info->video_height;
1976         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
1977
1978         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1979
1980         fb_info->var.pixclock = (u32) (1000000000 /
1981                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
1982                                 hw_info,
1983                                 XGIbios_mode[xgifb_info->mode_idx].mode_no));
1984
1985         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
1986                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
1987                 &fb_info->var.left_margin,
1988                 &fb_info->var.right_margin,
1989                 &fb_info->var.upper_margin,
1990                 &fb_info->var.lower_margin,
1991                 &fb_info->var.hsync_len,
1992                 &fb_info->var.vsync_len,
1993                 &fb_info->var.sync,
1994                 &fb_info->var.vmode)) {
1995
1996                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1997                     FB_VMODE_INTERLACED) {
1998                         fb_info->var.yres <<= 1;
1999                         fb_info->var.yres_virtual <<= 1;
2000                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2001                            FB_VMODE_DOUBLE) {
2002                         fb_info->var.pixclock >>= 1;
2003                         fb_info->var.yres >>= 1;
2004                         fb_info->var.yres_virtual >>= 1;
2005                 }
2006
2007         }
2008
2009         fb_info->flags = FBINFO_FLAG_DEFAULT;
2010         fb_info->screen_base = xgifb_info->video_vbase;
2011         fb_info->fbops = &XGIfb_ops;
2012         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2013         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2014
2015         fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2016
2017 #ifdef CONFIG_MTRR
2018         xgifb_info->mtrr = mtrr_add(xgifb_info->video_base,
2019                 xgifb_info->video_size, MTRR_TYPE_WRCOMB, 1);
2020         if (xgifb_info->mtrr >= 0)
2021                 dev_info(&pdev->dev, "Added MTRR\n");
2022 #endif
2023
2024         if (register_framebuffer(fb_info) < 0) {
2025                 ret = -EINVAL;
2026                 goto error_mtrr;
2027         }
2028
2029         dumpVGAReg();
2030
2031         return 0;
2032
2033 error_mtrr:
2034 #ifdef CONFIG_MTRR
2035         if (xgifb_info->mtrr >= 0)
2036                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2037                         xgifb_info->video_size);
2038 #endif /* CONFIG_MTRR */
2039 error_1:
2040         iounmap(xgifb_info->mmio_vbase);
2041         iounmap(xgifb_info->video_vbase);
2042         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2043 error_0:
2044         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2045 error_disable:
2046         pci_disable_device(pdev);
2047 error:
2048         framebuffer_release(fb_info);
2049         return ret;
2050 }
2051
2052 /*****************************************************/
2053 /*                PCI DEVICE HANDLING                */
2054 /*****************************************************/
2055
2056 static void xgifb_remove(struct pci_dev *pdev)
2057 {
2058         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2059         struct fb_info *fb_info = xgifb_info->fb_info;
2060
2061         unregister_framebuffer(fb_info);
2062 #ifdef CONFIG_MTRR
2063         if (xgifb_info->mtrr >= 0)
2064                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2065                         xgifb_info->video_size);
2066 #endif /* CONFIG_MTRR */
2067         iounmap(xgifb_info->mmio_vbase);
2068         iounmap(xgifb_info->video_vbase);
2069         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2070         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2071         pci_disable_device(pdev);
2072         framebuffer_release(fb_info);
2073         pci_set_drvdata(pdev, NULL);
2074 }
2075
2076 static struct pci_driver xgifb_driver = {
2077         .name = "xgifb",
2078         .id_table = xgifb_pci_table,
2079         .probe = xgifb_probe,
2080         .remove = xgifb_remove
2081 };
2082
2083
2084
2085 /*****************************************************/
2086 /*                      MODULE                       */
2087 /*****************************************************/
2088
2089 module_param(mode, charp, 0);
2090 MODULE_PARM_DESC(mode,
2091         "Selects the desired default display mode in the format XxYxDepth "
2092         "(eg. 1024x768x16).");
2093
2094 module_param(forcecrt2type, charp, 0);
2095 MODULE_PARM_DESC(forcecrt2type,
2096         "Force the second display output type. Possible values are NONE, "
2097         "LCD, TV, VGA, SVIDEO or COMPOSITE.");
2098
2099 module_param(vesa, int, 0);
2100 MODULE_PARM_DESC(vesa,
2101         "Selects the desired default display mode by VESA mode number "
2102         "(eg. 0x117).");
2103
2104 module_param(filter, int, 0);
2105 MODULE_PARM_DESC(filter,
2106         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). "
2107         "Possible values 0-7. Default: [no filter]).");
2108
2109 static int __init xgifb_init(void)
2110 {
2111         char *option = NULL;
2112
2113         if (forcecrt2type != NULL)
2114                 XGIfb_search_crt2type(forcecrt2type);
2115         if (fb_get_options("xgifb", &option))
2116                 return -ENODEV;
2117         XGIfb_setup(option);
2118
2119         return pci_register_driver(&xgifb_driver);
2120 }
2121
2122 static void __exit xgifb_remove_module(void)
2123 {
2124         pci_unregister_driver(&xgifb_driver);
2125         pr_debug("Module unloaded\n");
2126 }
2127
2128 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2129 MODULE_LICENSE("GPL");
2130 MODULE_AUTHOR("XGITECH , Others");
2131 module_init(xgifb_init);
2132 module_exit(xgifb_remove_module);