drivers/staging/xgifb/XGI_main_26.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * XG20, XG21, XG40, XG42 frame buffer device
   4  * for Linux kernels  2.5.x, 2.6.x
   5  * Base on TW's sis fbdev code.
   6  */
   7
   8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
   9
  10 #include <linux/sizes.h>
  11 #include <linux/module.h>
  12 #include <linux/pci.h>
  13
  14 #include "XGI_main.h"
  15 #include "vb_init.h"
  16 #include "vb_util.h"
  17 #include "vb_setmode.h"
  18
  19 #define Index_CR_GPIO_Reg1 0x48
  20 #define Index_CR_GPIO_Reg3 0x4a
  21
  22 #define GPIOG_EN    BIT(6)
  23 #define GPIOG_READ  BIT(1)
  24
  25 static char *forcecrt2type;
  26 static char *mode;
  27 static int vesa = -1;
  28 static unsigned int refresh_rate;
  29
  30 /* -------------------- Macro definitions ---------------------------- */
  31
  32 #ifdef DEBUG
  33 static void dumpVGAReg(struct xgifb_video_info *xgifb_info)
  34 {
  35         struct vb_device_info *vb = &xgifb_info->dev_info;
  36         u8 i, reg;
  37
  38         xgifb_reg_set(vb->P3c4, 0x05, 0x86);
  39
  40         for (i = 0; i < 0x4f; i++) {
  41                 reg = xgifb_reg_get(vb->P3c4, i);
  42                 pr_debug("o 3c4 %x\n", i);
  43                 pr_debug("i 3c5 => %x\n", reg);
  44         }
  45
  46         for (i = 0; i < 0xF0; i++) {
  47                 reg = xgifb_reg_get(vb->P3d4, i);
  48                 pr_debug("o 3d4 %x\n", i);
  49                 pr_debug("i 3d5 => %x\n", reg);
  50         }
  51 }
  52 #else
  53 static inline void dumpVGAReg(struct xgifb_video_info *xgifb_info)
  54 {
  55 }
  56 #endif
  57
  58 /* --------------- Hardware Access Routines -------------------------- */
  59
  60 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
  61                                      struct xgi_hw_device_info *HwDeviceExtension,
  62                                      unsigned char modeno)
  63 {
  64         unsigned short ModeNo = modeno;
  65         unsigned short ModeIdIndex = 0, ClockIndex = 0;
  66         unsigned short RefreshRateTableIndex = 0;
  67
  68         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  69
  70         XGI_SearchModeID(ModeNo, &ModeIdIndex);
  71
  72         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  73                                                    ModeIdIndex, XGI_Pr);
  74
  75         ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
  76
  77         return XGI_VCLKData[ClockIndex].CLOCK * 1000;
  78 }
  79
  80 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
  81                                     struct xgi_hw_device_info *HwDeviceExtension,
  82                                     unsigned char modeno, u32 *left_margin,
  83                                     u32 *right_margin, u32 *upper_margin,
  84                                     u32 *lower_margin, u32 *hsync_len,
  85                                     u32 *vsync_len, u32 *sync, u32 *vmode)
  86 {
  87         unsigned short ModeNo = modeno;
  88         unsigned short ModeIdIndex, index = 0;
  89         unsigned short RefreshRateTableIndex = 0;
  90
  91         unsigned short VRE, VBE, VRS, VDE;
  92         unsigned short HRE, HBE, HRS, HDE;
  93         unsigned char sr_data, cr_data, cr_data2;
  94         int B, C, D, F, temp, j;
  95
  96         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  97         if (!XGI_SearchModeID(ModeNo, &ModeIdIndex))
  98                 return 0;
  99         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 100                                                    ModeIdIndex, XGI_Pr);
 101         index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 102
 103         sr_data = XGI_CRT1Table[index].CR[5];
 104
 105         HDE = XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3;
 106
 107         cr_data = XGI_CRT1Table[index].CR[3];
 108
 109         /* Horizontal retrace (=sync) start */
 110         HRS = (cr_data & 0xff) | ((unsigned short)(sr_data & 0xC0) << 2);
 111         F = HRS - HDE - 3;
 112
 113         sr_data = XGI_CRT1Table[index].CR[6];
 114
 115         cr_data = XGI_CRT1Table[index].CR[2];
 116
 117         cr_data2 = XGI_CRT1Table[index].CR[4];
 118
 119         /* Horizontal blank end */
 120         HBE = (cr_data & 0x1f) | ((unsigned short)(cr_data2 & 0x80) >> 2)
 121                         | ((unsigned short)(sr_data & 0x03) << 6);
 122
 123         /* Horizontal retrace (=sync) end */
 124         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 125
 126         temp = HBE - ((HDE - 1) & 255);
 127         B = (temp > 0) ? temp : (temp + 256);
 128
 129         temp = HRE - ((HDE + F + 3) & 63);
 130         C = (temp > 0) ? temp : (temp + 64);
 131
 132         D = B - F - C;
 133
 134         *left_margin = D * 8;
 135         *right_margin = F * 8;
 136         *hsync_len = C * 8;
 137
 138         sr_data = XGI_CRT1Table[index].CR[14];
 139
 140         cr_data2 = XGI_CRT1Table[index].CR[9];
 141
 142         VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes;
 143
 144         cr_data = XGI_CRT1Table[index].CR[10];
 145
 146         /* Vertical retrace (=sync) start */
 147         VRS = (cr_data & 0xff) | ((unsigned short)(cr_data2 & 0x04) << 6)
 148                         | ((unsigned short)(cr_data2 & 0x80) << 2)
 149                         | ((unsigned short)(sr_data & 0x08) << 7);
 150         F = VRS + 1 - VDE;
 151
 152         cr_data = XGI_CRT1Table[index].CR[13];
 153
 154         /* Vertical blank end */
 155         VBE = (cr_data & 0xff) | ((unsigned short)(sr_data & 0x10) << 4);
 156         temp = VBE - ((VDE - 1) & 511);
 157         B = (temp > 0) ? temp : (temp + 512);
 158
 159         cr_data = XGI_CRT1Table[index].CR[11];
 160
 161         /* Vertical retrace (=sync) end */
 162         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 163         temp = VRE - ((VDE + F - 1) & 31);
 164         C = (temp > 0) ? temp : (temp + 32);
 165
 166         D = B - F - C;
 167
 168         *upper_margin = D;
 169         *lower_margin = F;
 170         *vsync_len = C;
 171
 172         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 173                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 174         else
 175                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 176
 177         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 178                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 179         else
 180                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 181
 182         *vmode = FB_VMODE_NONINTERLACED;
 183         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080) {
 184                 *vmode = FB_VMODE_INTERLACED;
 185         } else {
 186                 j = 0;
 187                 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
 188                         if (XGI330_EModeIDTable[j].Ext_ModeID ==
 189                             XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
 190                                 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
 191                                     DoubleScanMode) {
 192                                         *vmode = FB_VMODE_DOUBLE;
 193                                 }
 194                                 break;
 195                         }
 196                         j++;
 197                 }
 198         }
 199
 200         return 1;
 201 }
 202
 203 void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 204 {
 205         XGI_Pr->P3c4 = BaseAddr + 0x14;
 206         XGI_Pr->P3d4 = BaseAddr + 0x24;
 207         XGI_Pr->P3c0 = BaseAddr + 0x10;
 208         XGI_Pr->P3ce = BaseAddr + 0x1e;
 209         XGI_Pr->P3c2 = BaseAddr + 0x12;
 210         XGI_Pr->P3cc = BaseAddr + 0x1c;
 211         XGI_Pr->P3ca = BaseAddr + 0x1a;
 212         XGI_Pr->P3c6 = BaseAddr + 0x16;
 213         XGI_Pr->P3c7 = BaseAddr + 0x17;
 214         XGI_Pr->P3c8 = BaseAddr + 0x18;
 215         XGI_Pr->P3c9 = BaseAddr + 0x19;
 216         XGI_Pr->P3da = BaseAddr + 0x2A;
 217         XGI_Pr->Part0Port = BaseAddr + XGI_CRT2_PORT_00;
 218         /* Digital video interface registers (LCD) */
 219         XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
 220         /* 301 TV Encoder registers */
 221         XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
 222         /* 301 Macrovision registers */
 223         XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
 224         /* 301 VGA2 (and LCD) registers */
 225         XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
 226         /* 301 palette address port registers */
 227         XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
 228 }
 229
 230 /* ------------------ Internal helper routines ----------------- */
 231
 232 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 233 {
 234         int i = 0;
 235
 236         while ((XGIbios_mode[i].mode_no != 0) &&
 237                (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
 238                 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE) &&
 239                     (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE) &&
 240                     (XGIbios_mode[i].bpp == 8)) {
 241                         return i;
 242                 }
 243                 i++;
 244         }
 245
 246         return -1;
 247 }
 248
 249 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 250                               const char *name)
 251 {
 252         unsigned int xres;
 253         unsigned int yres;
 254         unsigned int bpp;
 255         int i;
 256
 257         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 258                 goto invalid_mode;
 259
 260         if (bpp == 24)
 261                 bpp = 32; /* That's for people who mix up color and fb depth. */
 262
 263         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 264                 if (XGIbios_mode[i].xres == xres &&
 265                     XGIbios_mode[i].yres == yres &&
 266                     XGIbios_mode[i].bpp == bpp) {
 267                         xgifb_info->mode_idx = i;
 268                         return;
 269                 }
 270 invalid_mode:
 271         pr_info("Invalid mode '%s'\n", name);
 272 }
 273
 274 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 275                                   unsigned int vesamode)
 276 {
 277         int i = 0;
 278
 279         if (vesamode == 0)
 280                 goto invalid;
 281
 282         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 283
 284         while (XGIbios_mode[i].mode_no != 0) {
 285                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 286                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 287                         xgifb_info->mode_idx = i;
 288                         return;
 289                 }
 290                 i++;
 291         }
 292
 293 invalid:
 294         pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 295 }
 296
 297 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 298 {
 299         u16 xres, yres;
 300         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 301         unsigned long required_mem;
 302
 303         if (xgifb_info->chip == XG21) {
 304                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 305                         xres = xgifb_info->lvds_data.LVDSHDE;
 306                         yres = xgifb_info->lvds_data.LVDSVDE;
 307                         if (XGIbios_mode[myindex].xres > xres)
 308                                 return -1;
 309                         if (XGIbios_mode[myindex].yres > yres)
 310                                 return -1;
 311                         if ((XGIbios_mode[myindex].xres < xres) &&
 312                             (XGIbios_mode[myindex].yres < yres)) {
 313                                 if (XGIbios_mode[myindex].bpp > 8)
 314                                         return -1;
 315                         }
 316                 }
 317                 goto check_memory;
 318         }
 319
 320         /* FIXME: for now, all is valid on XG27 */
 321         if (xgifb_info->chip == XG27)
 322                 goto check_memory;
 323
 324         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 325                 return -1;
 326
 327         switch (xgifb_info->display2) {
 328         case XGIFB_DISP_LCD:
 329                 switch (hw_info->ulCRT2LCDType) {
 330                 case LCD_640x480:
 331                         xres = 640;
 332                         yres = 480;
 333                         break;
 334                 case LCD_800x600:
 335                         xres = 800;
 336                         yres = 600;
 337                         break;
 338                 case LCD_1024x600:
 339                         xres = 1024;
 340                         yres = 600;
 341                         break;
 342                 case LCD_1024x768:
 343                         xres = 1024;
 344                         yres = 768;
 345                         break;
 346                 case LCD_1152x768:
 347                         xres = 1152;
 348                         yres = 768;
 349                         break;
 350                 case LCD_1280x960:
 351                         xres = 1280;
 352                         yres = 960;
 353                         break;
 354                 case LCD_1280x768:
 355                         xres = 1280;
 356                         yres = 768;
 357                         break;
 358                 case LCD_1280x1024:
 359                         xres = 1280;
 360                         yres = 1024;
 361                         break;
 362                 case LCD_1400x1050:
 363                         xres = 1400;
 364                         yres = 1050;
 365                         break;
 366                 case LCD_1600x1200:
 367                         xres = 1600;
 368                         yres = 1200;
 369                         break;
 370                 default:
 371                         xres = 0;
 372                         yres = 0;
 373                         break;
 374                 }
 375                 if (XGIbios_mode[myindex].xres > xres)
 376                         return -1;
 377                 if (XGIbios_mode[myindex].yres > yres)
 378                         return -1;
 379                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 380                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 381                         switch (XGIbios_mode[myindex].xres) {
 382                         case 512:
 383                                 if (XGIbios_mode[myindex].yres != 512)
 384                                         return -1;
 385                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 386                                         return -1;
 387                                 break;
 388                         case 640:
 389                                 if ((XGIbios_mode[myindex].yres != 400) &&
 390                                     (XGIbios_mode[myindex].yres != 480))
 391                                         return -1;
 392                                 break;
 393                         case 800:
 394                                 if (XGIbios_mode[myindex].yres != 600)
 395                                         return -1;
 396                                 break;
 397                         case 1024:
 398                                 if ((XGIbios_mode[myindex].yres != 600) &&
 399                                     (XGIbios_mode[myindex].yres != 768))
 400                                         return -1;
 401                                 if ((XGIbios_mode[myindex].yres == 600) &&
 402                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 403                                         return -1;
 404                                 break;
 405                         case 1152:
 406                                 if ((XGIbios_mode[myindex].yres) != 768)
 407                                         return -1;
 408                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 409                                         return -1;
 410                                 break;
 411                         case 1280:
 412                                 if ((XGIbios_mode[myindex].yres != 768) &&
 413                                     (XGIbios_mode[myindex].yres != 1024))
 414                                         return -1;
 415                                 if ((XGIbios_mode[myindex].yres == 768) &&
 416                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 417                                         return -1;
 418                                 break;
 419                         case 1400:
 420                                 if (XGIbios_mode[myindex].yres != 1050)
 421                                         return -1;
 422                                 break;
 423                         case 1600:
 424                                 if (XGIbios_mode[myindex].yres != 1200)
 425                                         return -1;
 426                                 break;
 427                         default:
 428                                 return -1;
 429                         }
 430                 } else {
 431                         switch (XGIbios_mode[myindex].xres) {
 432                         case 512:
 433                                 if (XGIbios_mode[myindex].yres != 512)
 434                                         return -1;
 435                                 break;
 436                         case 640:
 437                                 if ((XGIbios_mode[myindex].yres != 400) &&
 438                                     (XGIbios_mode[myindex].yres != 480))
 439                                         return -1;
 440                                 break;
 441                         case 800:
 442                                 if (XGIbios_mode[myindex].yres != 600)
 443                                         return -1;
 444                                 break;
 445                         case 1024:
 446                                 if (XGIbios_mode[myindex].yres != 768)
 447                                         return -1;
 448                                 break;
 449                         case 1280:
 450                                 if ((XGIbios_mode[myindex].yres != 960) &&
 451                                     (XGIbios_mode[myindex].yres != 1024))
 452                                         return -1;
 453                                 if (XGIbios_mode[myindex].yres == 960) {
 454                                         if (hw_info->ulCRT2LCDType ==
 455                                             LCD_1400x1050)
 456                                                 return -1;
 457                                 }
 458                                 break;
 459                         case 1400:
 460                                 if (XGIbios_mode[myindex].yres != 1050)
 461                                         return -1;
 462                                 break;
 463                         case 1600:
 464                                 if (XGIbios_mode[myindex].yres != 1200)
 465                                         return -1;
 466                                 break;
 467                         default:
 468                                 return -1;
 469                         }
 470                 }
 471                 break;
 472         case XGIFB_DISP_TV:
 473                 switch (XGIbios_mode[myindex].xres) {
 474                 case 512:
 475                 case 640:
 476                 case 800:
 477                         break;
 478                 case 720:
 479                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 480                                 if (XGIbios_mode[myindex].yres != 480)
 481                                         return -1;
 482                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 483                                 if (XGIbios_mode[myindex].yres != 576)
 484                                         return -1;
 485                         }
 486                         /* LVDS/CHRONTEL does not support 720 */
 487                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 488                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 489                                 return -1;
 490                         }
 491                         break;
 492                 case 1024:
 493                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 494                                 if (XGIbios_mode[myindex].bpp == 32)
 495                                         return -1;
 496                         }
 497                         break;
 498                 default:
 499                         return -1;
 500                 }
 501                 break;
 502         case XGIFB_DISP_CRT:
 503                 if (XGIbios_mode[myindex].xres > 1280)
 504                         return -1;
 505                 break;
 506         case XGIFB_DISP_NONE:
 507                 break;
 508         }
 509
 510 check_memory:
 511         required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
 512                        XGIbios_mode[myindex].bpp / 8;
 513         if (required_mem > xgifb_info->video_size)
 514                 return -1;
 515         return myindex;
 516 }
 517
 518 static void XGIfb_search_crt2type(const char *name)
 519 {
 520         int i = 0;
 521
 522         if (!name)
 523                 return;
 524
 525         while (XGI_crt2type[i].type_no != -1) {
 526                 if (!strcmp(name, XGI_crt2type[i].name)) {
 527                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 528                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 529                         break;
 530                 }
 531                 i++;
 532         }
 533         if (XGIfb_crt2type < 0)
 534                 pr_info("Invalid CRT2 type: %s\n", name);
 535 }
 536
 537 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 538                                     unsigned int rate)
 539 {
 540         u16 xres, yres;
 541         int i = 0;
 542
 543         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 544         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 545
 546         xgifb_info->rate_idx = 0;
 547
 548         while (XGIfb_vrate[i].idx != 0 && XGIfb_vrate[i].xres <= xres) {
 549                 /* Skip values with xres or yres less than specified */
 550                 if ((XGIfb_vrate[i].yres != yres) ||
 551                     (XGIfb_vrate[i].xres != xres)) {
 552                         i++;
 553                         continue;
 554                 }
 555                 if (XGIfb_vrate[i].refresh == rate) {
 556                         xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 557                         break;
 558                 } else if (XGIfb_vrate[i].refresh > rate) {
 559                         if (XGIfb_vrate[i].refresh - rate <= 3) {
 560                                 pr_debug("Adjusting rate from %d up to %d\n",
 561                                         rate, XGIfb_vrate[i].refresh);
 562                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 563                                 xgifb_info->refresh_rate =
 564                                         XGIfb_vrate[i].refresh;
 565                         } else if ((XGIfb_vrate[i].idx != 1) &&
 566                                    (rate - XGIfb_vrate[i - 1].refresh <= 2)) {
 567                                 pr_debug("Adjusting rate from %d down to %d\n",
 568                                         rate, XGIfb_vrate[i - 1].refresh);
 569                                 xgifb_info->rate_idx = XGIfb_vrate[i - 1].idx;
 570                                 xgifb_info->refresh_rate =
 571                                         XGIfb_vrate[i - 1].refresh;
 572                         }
 573                         break;
 574                 } else if (rate - XGIfb_vrate[i].refresh <= 2) {
 575                         pr_debug("Adjusting rate from %d down to %d\n",
 576                                 rate, XGIfb_vrate[i].refresh);
 577                         xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 578                         break;
 579                 }
 580                 i++;
 581         }
 582
 583         if (xgifb_info->rate_idx > 0)
 584                 return xgifb_info->rate_idx;
 585         pr_info("Unsupported rate %d for %dx%d\n",
 586                 rate, xres, yres);
 587         return 0;
 588 }
 589
 590 static void XGIfb_search_tvstd(const char *name)
 591 {
 592         int i = 0;
 593
 594         if (!name)
 595                 return;
 596
 597         while (XGI_tvtype[i].type_no != -1) {
 598                 if (!strcmp(name, XGI_tvtype[i].name)) {
 599                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 600                         break;
 601                 }
 602                 i++;
 603         }
 604 }
 605
 606 /* ----------- FBDev related routines for all series ----------- */
 607
 608 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 609                              struct fb_var_screeninfo *var)
 610 {
 611         switch (var->bits_per_pixel) {
 612         case 8:
 613                 var->red.offset = 0;
 614                 var->green.offset = 0;
 615                 var->blue.offset = 0;
 616                 var->red.length = 6;
 617                 var->green.length = 6;
 618                 var->blue.length = 6;
 619                 xgifb_info->video_cmap_len = 256;
 620                 break;
 621         case 16:
 622                 var->red.offset = 11;
 623                 var->red.length = 5;
 624                 var->green.offset = 5;
 625                 var->green.length = 6;
 626                 var->blue.offset = 0;
 627                 var->blue.length = 5;
 628                 var->transp.offset = 0;
 629                 var->transp.length = 0;
 630                 xgifb_info->video_cmap_len = 16;
 631                 break;
 632         case 32:
 633                 var->red.offset = 16;
 634                 var->red.length = 8;
 635                 var->green.offset = 8;
 636                 var->green.length = 8;
 637                 var->blue.offset = 0;
 638                 var->blue.length = 8;
 639                 var->transp.offset = 24;
 640                 var->transp.length = 8;
 641                 xgifb_info->video_cmap_len = 16;
 642                 break;
 643         }
 644 }
 645
 646 /* --------------------- SetMode routines ------------------------- */
 647
 648 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 649 {
 650         struct vb_device_info *vb = &xgifb_info->dev_info;
 651         u8 cr30 = 0, cr31 = 0;
 652
 653         cr31 = xgifb_reg_get(vb->P3d4, 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(vb->P3d4, IND_XGI_SCRATCH_REG_CR30, cr30);
 691         xgifb_reg_set(vb->P3d4, IND_XGI_SCRATCH_REG_CR31, cr31);
 692         xgifb_reg_set(vb->P3d4, 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         struct vb_device_info *vb = &xgifb_info->dev_info;
 699         u8 reg;
 700         unsigned char doit = 1;
 701
 702         if (xgifb_info->video_bpp == 8) {
 703                 /*
 704                  * We can't switch off CRT1 on LVDS/Chrontel
 705                  * in 8bpp Modes
 706                  */
 707                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 708                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 709                         doit = 0;
 710                 }
 711                 /*
 712                  * We can't switch off CRT1 on 301B-DH
 713                  * in 8bpp Modes if using LCD
 714                  */
 715                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 716                         doit = 0;
 717         }
 718
 719         /* We can't switch off CRT1 if bridge is in slave mode */
 720         if (xgifb_info->hasVB != HASVB_NONE) {
 721                 reg = xgifb_reg_get(vb->Part1Port, 0x00);
 722
 723                 if ((reg & 0x50) == 0x10)
 724                         doit = 0;
 725
 726         } else {
 727                 XGIfb_crt1off = 0;
 728         }
 729
 730         reg = xgifb_reg_get(vb->P3d4, 0x17);
 731         if ((XGIfb_crt1off) && (doit))
 732                 reg &= ~0x80;
 733         else
 734                 reg |= 0x80;
 735         xgifb_reg_set(vb->P3d4, 0x17, reg);
 736
 737         xgifb_reg_and(vb->P3c4, IND_SIS_RAMDAC_CONTROL, ~0x04);
 738
 739         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 740             xgifb_info->hasVB == HASVB_301) {
 741                 reg = xgifb_reg_get(vb->Part4Port, 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(vb->Part1Port, SIS_CRT2_WENABLE_315, 0x01);
 769
 770                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 771                                 xgifb_reg_and(vb->Part2Port, 0x3a, 0x1f);
 772
 773                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 774                                         xgifb_reg_and(vb->Part2Port, 0x30, 0xdf);
 775
 776                                 } else if (xgifb_info->TV_plug
 777                                                 == TVPLUG_COMPOSITE) {
 778                                         xgifb_reg_or(vb->Part2Port, 0x30, 0x20);
 779
 780                                         switch (xgifb_info->video_width) {
 781                                         case 640:
 782                                                 xgifb_reg_set(vb->Part2Port,
 783                                                               0x35,
 784                                                               0xEB);
 785                                                 xgifb_reg_set(vb->Part2Port,
 786                                                               0x36,
 787                                                               0x04);
 788                                                 xgifb_reg_set(vb->Part2Port,
 789                                                               0x37,
 790                                                               0x25);
 791                                                 xgifb_reg_set(vb->Part2Port,
 792                                                               0x38,
 793                                                               0x18);
 794                                                 break;
 795                                         case 720:
 796                                                 xgifb_reg_set(vb->Part2Port,
 797                                                               0x35,
 798                                                               0xEE);
 799                                                 xgifb_reg_set(vb->Part2Port,
 800                                                               0x36,
 801                                                               0x0C);
 802                                                 xgifb_reg_set(vb->Part2Port,
 803                                                               0x37,
 804                                                               0x22);
 805                                                 xgifb_reg_set(vb->Part2Port,
 806                                                               0x38,
 807                                                               0x08);
 808                                                 break;
 809                                         case 800:
 810                                                 xgifb_reg_set(vb->Part2Port,
 811                                                               0x35,
 812                                                               0xEB);
 813                                                 xgifb_reg_set(vb->Part2Port,
 814                                                               0x36,
 815                                                               0x15);
 816                                                 xgifb_reg_set(vb->Part2Port,
 817                                                               0x37,
 818                                                               0x25);
 819                                                 xgifb_reg_set(vb->Part2Port,
 820                                                               0x38,
 821                                                               0xF6);
 822                                                 break;
 823                                         }
 824                                 }
 825
 826                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 827                                 xgifb_reg_and(vb->Part2Port, 0x3A, 0x1F);
 828
 829                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 830                                         xgifb_reg_and(vb->Part2Port, 0x30, 0xDF);
 831
 832                                 } else if (xgifb_info->TV_plug
 833                                                 == TVPLUG_COMPOSITE) {
 834                                         xgifb_reg_or(vb->Part2Port, 0x30, 0x20);
 835
 836                                         switch (xgifb_info->video_width) {
 837                                         case 640:
 838                                                 xgifb_reg_set(vb->Part2Port,
 839                                                               0x35,
 840                                                               0xF1);
 841                                                 xgifb_reg_set(vb->Part2Port,
 842                                                               0x36,
 843                                                               0xF7);
 844                                                 xgifb_reg_set(vb->Part2Port,
 845                                                               0x37,
 846                                                               0x1F);
 847                                                 xgifb_reg_set(vb->Part2Port,
 848                                                               0x38,
 849                                                               0x32);
 850                                                 break;
 851                                         case 720:
 852                                                 xgifb_reg_set(vb->Part2Port,
 853                                                               0x35,
 854                                                               0xF3);
 855                                                 xgifb_reg_set(vb->Part2Port,
 856                                                               0x36,
 857                                                               0x00);
 858                                                 xgifb_reg_set(vb->Part2Port,
 859                                                               0x37,
 860                                                               0x1D);
 861                                                 xgifb_reg_set(vb->Part2Port,
 862                                                               0x38,
 863                                                               0x20);
 864                                                 break;
 865                                         case 800:
 866                                                 xgifb_reg_set(vb->Part2Port,
 867                                                               0x35,
 868                                                               0xFC);
 869                                                 xgifb_reg_set(vb->Part2Port,
 870                                                               0x36,
 871                                                               0xFB);
 872                                                 xgifb_reg_set(vb->Part2Port,
 873                                                               0x37,
 874                                                               0x14);
 875                                                 xgifb_reg_set(vb->Part2Port,
 876                                                               0x38,
 877                                                               0x2A);
 878                                                 break;
 879                                         }
 880                                 }
 881                         }
 882
 883                         if ((filter >= 0) && (filter <= 7)) {
 884                                 const u8 *f = XGI_TV_filter[filter_tb].filter[filter];
 885
 886                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 887                                          filter_tb, filter, 4, f);
 888                                 xgifb_reg_set(vb->Part2Port, 0x35, f[0]);
 889                                 xgifb_reg_set(vb->Part2Port, 0x36, f[1]);
 890                                 xgifb_reg_set(vb->Part2Port, 0x37, f[2]);
 891                                 xgifb_reg_set(vb->Part2Port, 0x38, f[3]);
 892                         }
 893                 }
 894         }
 895 }
 896
 897 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 898                             struct fb_info *info)
 899 {
 900         struct xgifb_video_info *xgifb_info = info->par;
 901         struct vb_device_info *vb = &xgifb_info->dev_info;
 902         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 903         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 904                         + var->hsync_len;
 905         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 906                         + var->vsync_len;
 907 #if defined(__BIG_ENDIAN)
 908         u8 cr_data;
 909 #endif
 910         unsigned int drate = 0, hrate = 0;
 911         int found_mode = 0;
 912         int old_mode;
 913
 914         info->var.xres_virtual = var->xres_virtual;
 915         info->var.yres_virtual = var->yres_virtual;
 916         info->var.bits_per_pixel = var->bits_per_pixel;
 917
 918         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 919                 vtotal <<= 1;
 920         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 921                 vtotal <<= 2;
 922
 923         if (!htotal || !vtotal) {
 924                 pr_debug("Invalid 'var' information\n");
 925                 return -EINVAL;
 926         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 927                         var->pixclock, htotal, vtotal);
 928
 929         if (var->pixclock) {
 930                 drate = 1000000000 / var->pixclock;
 931                 hrate = (drate * 1000) / htotal;
 932                 xgifb_info->refresh_rate = (unsigned int)(hrate * 2
 933                                 / vtotal);
 934         } else {
 935                 xgifb_info->refresh_rate = 60;
 936         }
 937
 938         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 939                  var->xres, var->yres, var->bits_per_pixel,
 940                  xgifb_info->refresh_rate);
 941
 942         old_mode = xgifb_info->mode_idx;
 943         xgifb_info->mode_idx = 0;
 944
 945         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
 946                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
 947                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
 948                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
 949                     (XGIbios_mode[xgifb_info->mode_idx].bpp
 950                                                 == var->bits_per_pixel)) {
 951                         found_mode = 1;
 952                         break;
 953                 }
 954                 xgifb_info->mode_idx++;
 955         }
 956
 957         if (found_mode)
 958                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
 959                                                         xgifb_info->mode_idx);
 960         else
 961                 xgifb_info->mode_idx = -1;
 962
 963         if (xgifb_info->mode_idx < 0) {
 964                 pr_err("Mode %dx%dx%d not supported\n",
 965                        var->xres, var->yres, var->bits_per_pixel);
 966                 xgifb_info->mode_idx = old_mode;
 967                 return -EINVAL;
 968         }
 969
 970         if (XGIfb_search_refresh_rate(xgifb_info,
 971                                       xgifb_info->refresh_rate) == 0) {
 972                 xgifb_info->rate_idx = 1;
 973                 xgifb_info->refresh_rate = 60;
 974         }
 975
 976         if (isactive) {
 977                 XGIfb_pre_setmode(xgifb_info);
 978                 if (XGISetModeNew(xgifb_info, hw_info,
 979                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
 980                                         == 0) {
 981                         pr_err("Setting mode[0x%x] failed\n",
 982                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
 983                         return -EINVAL;
 984                 }
 985                 info->fix.line_length = (info->var.xres_virtual
 986                                 * info->var.bits_per_pixel) >> 6;
 987
 988                 xgifb_reg_set(vb->P3c4, IND_SIS_PASSWORD, SIS_PASSWORD);
 989
 990                 xgifb_reg_set(vb->P3d4, 0x13, (info->fix.line_length & 0x00ff));
 991                 xgifb_reg_set(vb->P3c4, 0x0E,
 992                               (info->fix.line_length & 0xff00) >> 8);
 993
 994                 XGIfb_post_setmode(xgifb_info);
 995
 996                 pr_debug("Set new mode: %dx%dx%d-%d\n",
 997                          XGIbios_mode[xgifb_info->mode_idx].xres,
 998                          XGIbios_mode[xgifb_info->mode_idx].yres,
 999                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1000                          xgifb_info->refresh_rate);
1001
1002                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1003                 xgifb_info->video_vwidth = info->var.xres_virtual;
1004                 xgifb_info->video_width =
1005                         XGIbios_mode[xgifb_info->mode_idx].xres;
1006                 xgifb_info->video_vheight = info->var.yres_virtual;
1007                 xgifb_info->video_height =
1008                         XGIbios_mode[xgifb_info->mode_idx].yres;
1009                 xgifb_info->org_x = 0;
1010                 xgifb_info->org_y = 0;
1011                 xgifb_info->video_linelength = info->var.xres_virtual
1012                                 * (xgifb_info->video_bpp >> 3);
1013                 switch (xgifb_info->video_bpp) {
1014                 case 8:
1015                         xgifb_info->DstColor = 0x0000;
1016                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1017                         xgifb_info->video_cmap_len = 256;
1018 #if defined(__BIG_ENDIAN)
1019                         cr_data = xgifb_reg_get(vb->P3d4, 0x4D);
1020                         xgifb_reg_set(vb->P3d4, 0x4D, (cr_data & 0xE0));
1021 #endif
1022                         break;
1023                 case 16:
1024                         xgifb_info->DstColor = 0x8000;
1025                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1026 #if defined(__BIG_ENDIAN)
1027                         cr_data = xgifb_reg_get(vb->P3d4, 0x4D);
1028                         xgifb_reg_set(vb->P3d4, 0x4D, ((cr_data & 0xE0) | 0x0B));
1029 #endif
1030                         xgifb_info->video_cmap_len = 16;
1031                         break;
1032                 case 32:
1033                         xgifb_info->DstColor = 0xC000;
1034                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1035                         xgifb_info->video_cmap_len = 16;
1036 #if defined(__BIG_ENDIAN)
1037                         cr_data = xgifb_reg_get(vb->P3d4, 0x4D);
1038                         xgifb_reg_set(vb->P3d4, 0x4D, ((cr_data & 0xE0) | 0x15));
1039 #endif
1040                         break;
1041                 default:
1042                         xgifb_info->video_cmap_len = 16;
1043                         pr_err("Unsupported depth %d\n",
1044                                xgifb_info->video_bpp);
1045                         break;
1046                 }
1047         }
1048         XGIfb_bpp_to_var(xgifb_info, var); /* update ARGB info */
1049
1050         dumpVGAReg(xgifb_info);
1051         return 0;
1052 }
1053
1054 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1055 {
1056         struct xgifb_video_info *xgifb_info = info->par;
1057         struct vb_device_info *vb = &xgifb_info->dev_info;
1058         unsigned int base;
1059
1060         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1061
1062         /* calculate base bpp dep. */
1063         switch (info->var.bits_per_pixel) {
1064         case 16:
1065                 base >>= 1;
1066                 break;
1067         case 32:
1068                 break;
1069         case 8:
1070         default:
1071                 base >>= 2;
1072                 break;
1073         }
1074
1075         xgifb_reg_set(vb->P3c4, IND_SIS_PASSWORD, SIS_PASSWORD);
1076
1077         xgifb_reg_set(vb->P3d4, 0x0D, base & 0xFF);
1078         xgifb_reg_set(vb->P3d4, 0x0C, (base >> 8) & 0xFF);
1079         xgifb_reg_set(vb->P3c4, 0x0D, (base >> 16) & 0xFF);
1080         xgifb_reg_set(vb->P3c4, 0x37, (base >> 24) & 0x03);
1081         xgifb_reg_and_or(vb->P3c4, 0x37, 0xDF, (base >> 21) & 0x04);
1082
1083         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1084                 xgifb_reg_or(vb->Part1Port, SIS_CRT2_WENABLE_315, 0x01);
1085                 xgifb_reg_set(vb->Part1Port, 0x06, (base & 0xFF));
1086                 xgifb_reg_set(vb->Part1Port, 0x05, ((base >> 8) & 0xFF));
1087                 xgifb_reg_set(vb->Part1Port, 0x04, ((base >> 16) & 0xFF));
1088                 xgifb_reg_and_or(vb->Part1Port, 0x02, 0x7F,
1089                                  ((base >> 24) & 0x01) << 7);
1090         }
1091         return 0;
1092 }
1093
1094 static int XGIfb_open(struct fb_info *info, int user)
1095 {
1096         return 0;
1097 }
1098
1099 static int XGIfb_release(struct fb_info *info, int user)
1100 {
1101         return 0;
1102 }
1103
1104 /* similar to sisfb_get_cmap_len */
1105 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1106 {
1107         return (var->bits_per_pixel == 8) ? 256 : 16;
1108 }
1109
1110 static int XGIfb_setcolreg(unsigned int regno, unsigned int red,
1111                            unsigned int green, unsigned int blue,
1112                            unsigned int transp, struct fb_info *info)
1113 {
1114         struct xgifb_video_info *xgifb_info = info->par;
1115         struct vb_device_info *vb = &xgifb_info->dev_info;
1116
1117         if (regno >= XGIfb_get_cmap_len(&info->var))
1118                 return 1;
1119
1120         switch (info->var.bits_per_pixel) {
1121         case 8:
1122                 outb(regno, vb->P3c8);
1123                 outb((red >> 10), vb->P3c9);
1124                 outb((green >> 10), vb->P3c9);
1125                 outb((blue >> 10), vb->P3c9);
1126                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1127                         outb(regno, vb->Part5Port);
1128                         outb((red >> 8), (vb->Part5Port + 1));
1129                         outb((green >> 8), (vb->Part5Port + 1));
1130                         outb((blue >> 8), (vb->Part5Port + 1));
1131                 }
1132                 break;
1133         case 16:
1134                 ((u32 *)(info->pseudo_palette))[regno] = ((red & 0xf800))
1135                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1136                                 >> 11);
1137                 break;
1138         case 32:
1139                 red >>= 8;
1140                 green >>= 8;
1141                 blue >>= 8;
1142                 ((u32 *)(info->pseudo_palette))[regno] = (red << 16) | (green
1143                                 << 8) | (blue);
1144                 break;
1145         }
1146         return 0;
1147 }
1148
1149 /* ----------- FBDev related routines for all series ---------- */
1150
1151 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1152                          struct fb_info *info)
1153 {
1154         struct xgifb_video_info *xgifb_info = info->par;
1155
1156         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1157
1158         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1159
1160         /* if register_framebuffer has been called, we must lock */
1161         if (atomic_read(&info->count))
1162                 mutex_lock(&info->mm_lock);
1163
1164         fix->smem_start = xgifb_info->video_base;
1165         fix->smem_len = xgifb_info->video_size;
1166
1167         /* if register_framebuffer has been called, we can unlock */
1168         if (atomic_read(&info->count))
1169                 mutex_unlock(&info->mm_lock);
1170
1171         fix->type = FB_TYPE_PACKED_PIXELS;
1172         fix->type_aux = 0;
1173         if (xgifb_info->video_bpp == 8)
1174                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1175         else
1176                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1177         fix->xpanstep = 0;
1178         if (XGIfb_ypan)
1179                 fix->ypanstep = 1;
1180         fix->ywrapstep = 0;
1181         fix->line_length = xgifb_info->video_linelength;
1182         fix->mmio_start = xgifb_info->mmio_base;
1183         fix->mmio_len = xgifb_info->mmio_size;
1184         fix->accel = FB_ACCEL_SIS_XABRE;
1185
1186         return 0;
1187 }
1188
1189 static int XGIfb_set_par(struct fb_info *info)
1190 {
1191         int err;
1192
1193         err = XGIfb_do_set_var(&info->var, 1, info);
1194         if (err)
1195                 return err;
1196         XGIfb_get_fix(&info->fix, -1, info);
1197         return 0;
1198 }
1199
1200 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1201 {
1202         struct xgifb_video_info *xgifb_info = info->par;
1203         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1204                         + var->hsync_len;
1205         unsigned int vtotal = 0;
1206         unsigned int drate = 0, hrate = 0;
1207         int found_mode = 0;
1208         int search_idx;
1209
1210         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1211                 vtotal = var->upper_margin + var->yres + var->lower_margin
1212                                 + var->vsync_len;
1213                 vtotal <<= 1;
1214         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1215                 vtotal = var->upper_margin + var->yres + var->lower_margin
1216                                 + var->vsync_len;
1217                 vtotal <<= 2;
1218         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1219                 vtotal = var->upper_margin + (var->yres / 2)
1220                                 + var->lower_margin + var->vsync_len;
1221         } else
1222                 vtotal = var->upper_margin + var->yres + var->lower_margin
1223                                 + var->vsync_len;
1224
1225         if (!(htotal) || !(vtotal)) {
1226                 pr_debug("No valid timing data\n");
1227                 return -EINVAL;
1228         }
1229
1230         if (var->pixclock && htotal && vtotal) {
1231                 drate = 1000000000 / var->pixclock;
1232                 hrate = (drate * 1000) / htotal;
1233                 xgifb_info->refresh_rate =
1234                         (unsigned int)(hrate * 2 / vtotal);
1235                 pr_debug(
1236                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1237                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1238                         __func__, var->pixclock, htotal, vtotal,
1239                         __func__, drate, hrate, xgifb_info->refresh_rate);
1240         } else {
1241                 xgifb_info->refresh_rate = 60;
1242         }
1243
1244         search_idx = 0;
1245         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1246                (XGIbios_mode[search_idx].xres <= var->xres)) {
1247                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1248                     (XGIbios_mode[search_idx].yres == var->yres) &&
1249                     (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1250                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1251                                 found_mode = 1;
1252                                 break;
1253                         }
1254                 }
1255                 search_idx++;
1256         }
1257
1258         if (!found_mode) {
1259                 pr_err("%dx%dx%d is no valid mode\n",
1260                        var->xres, var->yres, var->bits_per_pixel);
1261                 search_idx = 0;
1262                 while (XGIbios_mode[search_idx].mode_no != 0) {
1263                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1264                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1265                             (var->bits_per_pixel ==
1266                              XGIbios_mode[search_idx].bpp)) {
1267                                 if (XGIfb_validate_mode(xgifb_info,
1268                                                         search_idx) > 0) {
1269                                         found_mode = 1;
1270                                         break;
1271                                 }
1272                         }
1273                         search_idx++;
1274                 }
1275                 if (found_mode) {
1276                         var->xres = XGIbios_mode[search_idx].xres;
1277                         var->yres = XGIbios_mode[search_idx].yres;
1278                         pr_debug("Adapted to mode %dx%dx%d\n",
1279                                  var->xres, var->yres, var->bits_per_pixel);
1280
1281                 } else {
1282                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1283                                var->xres, var->yres, var->bits_per_pixel);
1284                         return -EINVAL;
1285                 }
1286         }
1287
1288         /* Adapt RGB settings */
1289         XGIfb_bpp_to_var(xgifb_info, var);
1290
1291         if (!XGIfb_ypan) {
1292                 if (var->xres != var->xres_virtual)
1293                         var->xres_virtual = var->xres;
1294                 if (var->yres != var->yres_virtual)
1295                         var->yres_virtual = var->yres;
1296         }
1297
1298         /* Truncate offsets to maximum if too high */
1299         if (var->xoffset > var->xres_virtual - var->xres)
1300                 var->xoffset = var->xres_virtual - var->xres - 1;
1301
1302         if (var->yoffset > var->yres_virtual - var->yres)
1303                 var->yoffset = var->yres_virtual - var->yres - 1;
1304
1305         /* Set everything else to 0 */
1306         var->red.msb_right = 0;
1307         var->green.msb_right = 0;
1308         var->blue.msb_right = 0;
1309         var->transp.offset = 0;
1310         var->transp.length = 0;
1311         var->transp.msb_right = 0;
1312
1313         return 0;
1314 }
1315
1316 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1317                              struct fb_info *info)
1318 {
1319         int err;
1320
1321         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1322                 return -EINVAL;
1323         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1324                 return -EINVAL;
1325
1326         if (var->vmode & FB_VMODE_YWRAP) {
1327                 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1328                         return -EINVAL;
1329         } else if (var->xoffset + info->var.xres > info->var.xres_virtual ||
1330                    var->yoffset + info->var.yres > info->var.yres_virtual) {
1331                 return -EINVAL;
1332         }
1333         err = XGIfb_pan_var(var, info);
1334         if (err < 0)
1335                 return err;
1336
1337         info->var.xoffset = var->xoffset;
1338         info->var.yoffset = var->yoffset;
1339         if (var->vmode & FB_VMODE_YWRAP)
1340                 info->var.vmode |= FB_VMODE_YWRAP;
1341         else
1342                 info->var.vmode &= ~FB_VMODE_YWRAP;
1343
1344         return 0;
1345 }
1346
1347 static int XGIfb_blank(int blank, struct fb_info *info)
1348 {
1349         struct xgifb_video_info *xgifb_info = info->par;
1350         struct vb_device_info *vb = &xgifb_info->dev_info;
1351         u8 reg;
1352
1353         reg = xgifb_reg_get(vb->P3d4, 0x17);
1354
1355         if (blank > 0)
1356                 reg &= 0x7f;
1357         else
1358                 reg |= 0x80;
1359
1360         xgifb_reg_set(vb->P3d4, 0x17, reg);
1361         xgifb_reg_set(vb->P3c4, 0x00, 0x01); /* Synchronous Reset */
1362         xgifb_reg_set(vb->P3c4, 0x00, 0x03); /* End Reset */
1363         return 0;
1364 }
1365
1366 static struct fb_ops XGIfb_ops = {
1367         .owner = THIS_MODULE,
1368         .fb_open = XGIfb_open,
1369         .fb_release = XGIfb_release,
1370         .fb_check_var = XGIfb_check_var,
1371         .fb_set_par = XGIfb_set_par,
1372         .fb_setcolreg = XGIfb_setcolreg,
1373         .fb_pan_display = XGIfb_pan_display,
1374         .fb_blank = XGIfb_blank,
1375         .fb_fillrect = cfb_fillrect,
1376         .fb_copyarea = cfb_copyarea,
1377         .fb_imageblit = cfb_imageblit,
1378 };
1379
1380 /* ---------------- Chip generation dependent routines ---------------- */
1381
1382 /* for XGI 315/550/650/740/330 */
1383
1384 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1385 {
1386         struct vb_device_info *vb = &xgifb_info->dev_info;
1387         u8 ChannelNum, tmp;
1388         u8 reg = 0;
1389
1390         /* xorg driver sets 32MB * 1 channel */
1391         if (xgifb_info->chip == XG27)
1392                 xgifb_reg_set(vb->P3c4, IND_SIS_DRAM_SIZE, 0x51);
1393
1394         reg = xgifb_reg_get(vb->P3c4, IND_SIS_DRAM_SIZE);
1395         if (!reg)
1396                 return -1;
1397
1398         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1399         case XGI_DRAM_SIZE_1MB:
1400                 xgifb_info->video_size = 0x100000;
1401                 break;
1402         case XGI_DRAM_SIZE_2MB:
1403                 xgifb_info->video_size = 0x200000;
1404                 break;
1405         case XGI_DRAM_SIZE_4MB:
1406                 xgifb_info->video_size = 0x400000;
1407                 break;
1408         case XGI_DRAM_SIZE_8MB:
1409                 xgifb_info->video_size = 0x800000;
1410                 break;
1411         case XGI_DRAM_SIZE_16MB:
1412                 xgifb_info->video_size = 0x1000000;
1413                 break;
1414         case XGI_DRAM_SIZE_32MB:
1415                 xgifb_info->video_size = 0x2000000;
1416                 break;
1417         case XGI_DRAM_SIZE_64MB:
1418                 xgifb_info->video_size = 0x4000000;
1419                 break;
1420         case XGI_DRAM_SIZE_128MB:
1421                 xgifb_info->video_size = 0x8000000;
1422                 break;
1423         case XGI_DRAM_SIZE_256MB:
1424                 xgifb_info->video_size = 0x10000000;
1425                 break;
1426         default:
1427                 return -1;
1428         }
1429
1430         tmp = (reg & 0x0c) >> 2;
1431         switch (xgifb_info->chip) {
1432         case XG20:
1433         case XG21:
1434         case XG27:
1435                 ChannelNum = 1;
1436                 break;
1437
1438         case XG42:
1439                 if (reg & 0x04)
1440                         ChannelNum = 2;
1441                 else
1442                         ChannelNum = 1;
1443                 break;
1444
1445         case XG40:
1446         default:
1447                 if (tmp == 2)
1448                         ChannelNum = 2;
1449                 else if (tmp == 3)
1450                         ChannelNum = 3;
1451                 else
1452                         ChannelNum = 1;
1453                 break;
1454         }
1455
1456         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1457
1458         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1459                 reg, xgifb_info->video_size, ChannelNum);
1460         return 0;
1461 }
1462
1463 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1464 {
1465         struct vb_device_info *vb = &xgifb_info->dev_info;
1466         u8 cr32, temp = 0;
1467
1468         xgifb_info->TV_plug = 0;
1469         xgifb_info->TV_type = 0;
1470
1471         cr32 = xgifb_reg_get(vb->P3d4, IND_XGI_SCRATCH_REG_CR32);
1472
1473         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off) {
1474                 XGIfb_crt1off = 0;
1475         } else {
1476                 if (cr32 & 0x5F)
1477                         XGIfb_crt1off = 1;
1478                 else
1479                         XGIfb_crt1off = 0;
1480         }
1481
1482         if (!xgifb_info->display2_force) {
1483                 if (cr32 & SIS_VB_TV)
1484                         xgifb_info->display2 = XGIFB_DISP_TV;
1485                 else if (cr32 & SIS_VB_LCD)
1486                         xgifb_info->display2 = XGIFB_DISP_LCD;
1487                 else if (cr32 & SIS_VB_CRT2)
1488                         xgifb_info->display2 = XGIFB_DISP_CRT;
1489                 else
1490                         xgifb_info->display2 = XGIFB_DISP_NONE;
1491         }
1492
1493         if (XGIfb_tvplug != -1) {
1494                 /* Override with option */
1495                 xgifb_info->TV_plug = XGIfb_tvplug;
1496         } else if (cr32 & SIS_VB_HIVISION) {
1497                 xgifb_info->TV_type = TVMODE_HIVISION;
1498                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1499         } else if (cr32 & SIS_VB_SVIDEO) {
1500                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1501         } else if (cr32 & SIS_VB_COMPOSITE) {
1502                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1503         } else if (cr32 & SIS_VB_SCART) {
1504                 xgifb_info->TV_plug = TVPLUG_SCART;
1505         }
1506
1507         if (xgifb_info->TV_type == 0) {
1508                 temp = xgifb_reg_get(vb->P3d4, 0x38);
1509                 if (temp & 0x10)
1510                         xgifb_info->TV_type = TVMODE_PAL;
1511                 else
1512                         xgifb_info->TV_type = TVMODE_NTSC;
1513         }
1514
1515         /* Copy forceCRT1 option to CRT1off if option is given */
1516         if (XGIfb_forcecrt1 != -1) {
1517                 if (XGIfb_forcecrt1)
1518                         XGIfb_crt1off = 0;
1519                 else
1520                         XGIfb_crt1off = 1;
1521         }
1522 }
1523
1524 static bool XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1525 {
1526         u8 vb_chipid;
1527
1528         vb_chipid = xgifb_reg_get(xgifb_info->dev_info.Part4Port, 0x00);
1529         switch (vb_chipid) {
1530         case 0x01:
1531                 xgifb_info->hasVB = HASVB_301;
1532                 break;
1533         case 0x02:
1534                 xgifb_info->hasVB = HASVB_302;
1535                 break;
1536         default:
1537                 xgifb_info->hasVB = HASVB_NONE;
1538                 return false;
1539         }
1540         return true;
1541 }
1542
1543 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1544 {
1545         u8 reg;
1546
1547         if (!XGIfb_has_VB(xgifb_info)) {
1548                 reg = xgifb_reg_get(xgifb_info->dev_info.P3d4,
1549                                     IND_XGI_SCRATCH_REG_CR37);
1550                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1551                 case SIS_EXTERNAL_CHIP_LVDS:
1552                         xgifb_info->hasVB = HASVB_LVDS;
1553                         break;
1554                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1555                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1556                         break;
1557                 default:
1558                         break;
1559                 }
1560         }
1561 }
1562
1563 static int __init xgifb_optval(char *fullopt, int validx)
1564 {
1565         unsigned long lres;
1566
1567         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1568                 pr_err("Invalid value for option: %s\n", fullopt);
1569                 return 0;
1570         }
1571         return lres;
1572 }
1573
1574 static int __init XGIfb_setup(char *options)
1575 {
1576         char *this_opt;
1577
1578         if (!options || !*options)
1579                 return 0;
1580
1581         pr_info("Options: %s\n", options);
1582
1583         while ((this_opt = strsep(&options, ",")) != NULL) {
1584                 if (!*this_opt)
1585                         continue;
1586
1587                 if (!strncmp(this_opt, "mode:", 5)) {
1588                         mode = this_opt + 5;
1589                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1590                         vesa = xgifb_optval(this_opt, 5);
1591                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1592                         refresh_rate = xgifb_optval(this_opt, 6);
1593                 } else if (!strncmp(this_opt, "rate:", 5)) {
1594                         refresh_rate = xgifb_optval(this_opt, 5);
1595                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1596                         XGIfb_crt1off = 1;
1597                 } else if (!strncmp(this_opt, "filter:", 7)) {
1598                         filter = xgifb_optval(this_opt, 7);
1599                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1600                         XGIfb_search_crt2type(this_opt + 14);
1601                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1602                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1603                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1604                         XGIfb_search_tvstd(this_opt + 7);
1605                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1606                         XGIfb_search_tvstd(this_opt + 7);
1607                 } else if (!strncmp(this_opt, "dstn", 4)) {
1608                         enable_dstn = 1;
1609                         /* DSTN overrules forcecrt2type */
1610                         XGIfb_crt2type = XGIFB_DISP_LCD;
1611                 } else if (!strncmp(this_opt, "noypan", 6)) {
1612                         XGIfb_ypan = 0;
1613                 } else {
1614                         mode = this_opt;
1615                 }
1616         }
1617         return 0;
1618 }
1619
1620 static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1621 {
1622         u8 reg, reg1;
1623         u8 CR48, CR38;
1624         int ret;
1625         struct fb_info *fb_info;
1626         struct xgifb_video_info *xgifb_info;
1627         struct vb_device_info *vb;
1628         struct xgi_hw_device_info *hw_info;
1629         unsigned long video_size_max;
1630
1631         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1632         if (!fb_info)
1633                 return -ENOMEM;
1634
1635         xgifb_info = fb_info->par;
1636         vb = &xgifb_info->dev_info;
1637         hw_info = &xgifb_info->hw_info;
1638         xgifb_info->fb_info = fb_info;
1639         xgifb_info->chip_id = pdev->device;
1640         pci_read_config_byte(pdev,
1641                              PCI_REVISION_ID,
1642                              &xgifb_info->revision_id);
1643         hw_info->jChipRevision = xgifb_info->revision_id;
1644
1645         xgifb_info->pcibus = pdev->bus->number;
1646         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1647         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1648         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1649         xgifb_info->subsysdevice = pdev->subsystem_device;
1650
1651         video_size_max = pci_resource_len(pdev, 0);
1652         xgifb_info->video_base = pci_resource_start(pdev, 0);
1653         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1654         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1655         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1656         dev_info(&pdev->dev, "Relocate IO address: %llx [%08lx]\n",
1657                  (u64)pci_resource_start(pdev, 2),
1658                  xgifb_info->vga_base);
1659
1660         if (pci_enable_device(pdev)) {
1661                 ret = -EIO;
1662                 goto error;
1663         }
1664
1665         if (XGIfb_crt2type != -1) {
1666                 xgifb_info->display2 = XGIfb_crt2type;
1667                 xgifb_info->display2_force = true;
1668         }
1669
1670         XGIRegInit(vb, xgifb_info->vga_base);
1671
1672         xgifb_reg_set(vb->P3c4,
1673                       IND_SIS_PASSWORD, SIS_PASSWORD);
1674         reg1 = xgifb_reg_get(vb->P3c4, IND_SIS_PASSWORD);
1675
1676         if (reg1 != 0xa1) { /* I/O error */
1677                 dev_err(&pdev->dev, "I/O error\n");
1678                 ret = -EIO;
1679                 goto error_disable;
1680         }
1681
1682         switch (xgifb_info->chip_id) {
1683         case PCI_DEVICE_ID_XGI_20:
1684                 xgifb_reg_or(vb->P3d4,
1685                              Index_CR_GPIO_Reg3, GPIOG_EN);
1686                 CR48 = xgifb_reg_get(vb->P3d4,
1687                                      Index_CR_GPIO_Reg1);
1688                 if (CR48 & GPIOG_READ)
1689                         xgifb_info->chip = XG21;
1690                 else
1691                         xgifb_info->chip = XG20;
1692                 break;
1693         case PCI_DEVICE_ID_XGI_40:
1694                 xgifb_info->chip = XG40;
1695                 break;
1696         case PCI_DEVICE_ID_XGI_42:
1697                 xgifb_info->chip = XG42;
1698                 break;
1699         case PCI_DEVICE_ID_XGI_27:
1700                 xgifb_info->chip = XG27;
1701                 break;
1702         default:
1703                 ret = -ENODEV;
1704                 goto error_disable;
1705         }
1706
1707         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1708         hw_info->jChipType = xgifb_info->chip;
1709
1710         if (XGIfb_get_dram_size(xgifb_info)) {
1711                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1712                                                SZ_16M);
1713         } else if (xgifb_info->video_size > video_size_max) {
1714                 xgifb_info->video_size = video_size_max;
1715         }
1716
1717         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE */
1718         xgifb_reg_or(vb->P3c4,
1719                      IND_SIS_PCI_ADDRESS_SET,
1720                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1721         /* Enable 2D accelerator engine */
1722         xgifb_reg_or(vb->P3c4,
1723                      IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1724
1725         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1726
1727         if (!request_mem_region(xgifb_info->video_base,
1728                                 xgifb_info->video_size,
1729                                 "XGIfb FB")) {
1730                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1731                         xgifb_info->video_size);
1732                 dev_err(&pdev->dev,
1733                         "Fatal error: Unable to reserve frame buffer memory. Is there another framebuffer driver active?\n");
1734                 ret = -ENODEV;
1735                 goto error_disable;
1736         }
1737
1738         if (!request_mem_region(xgifb_info->mmio_base,
1739                                 xgifb_info->mmio_size,
1740                                 "XGIfb MMIO")) {
1741                 dev_err(&pdev->dev,
1742                         "Fatal error: Unable to reserve MMIO region\n");
1743                 ret = -ENODEV;
1744                 goto error_0;
1745         }
1746
1747         xgifb_info->video_vbase =
1748                 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1749         hw_info->pjVideoMemoryAddress =
1750                 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1751         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1752                                          xgifb_info->mmio_size);
1753
1754         dev_info(&pdev->dev,
1755                  "Framebuffer at 0x%llx, mapped to 0x%p, size %dk\n",
1756                  (u64)xgifb_info->video_base,
1757                  xgifb_info->video_vbase,
1758                  xgifb_info->video_size / 1024);
1759
1760         dev_info(&pdev->dev,
1761                  "MMIO at 0x%llx, mapped to 0x%p, size %ldk\n",
1762                  (u64)xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1763                  xgifb_info->mmio_size / 1024);
1764
1765         pci_set_drvdata(pdev, xgifb_info);
1766         if (!XGIInitNew(pdev))
1767                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1768
1769         xgifb_info->mtrr = -1;
1770
1771         xgifb_info->hasVB = HASVB_NONE;
1772         if ((xgifb_info->chip == XG20) ||
1773             (xgifb_info->chip == XG27)) {
1774                 xgifb_info->hasVB = HASVB_NONE;
1775         } else if (xgifb_info->chip == XG21) {
1776                 CR38 = xgifb_reg_get(vb->P3d4, 0x38);
1777                 if ((CR38 & 0xE0) == 0xC0)
1778                         xgifb_info->display2 = XGIFB_DISP_LCD;
1779                 else if ((CR38 & 0xE0) == 0x60)
1780                         xgifb_info->hasVB = HASVB_CHRONTEL;
1781                 else
1782                         xgifb_info->hasVB = HASVB_NONE;
1783         } else {
1784                 XGIfb_get_VB_type(xgifb_info);
1785         }
1786
1787         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1788
1789         hw_info->ulExternalChip = 0;
1790
1791         switch (xgifb_info->hasVB) {
1792         case HASVB_301:
1793                 reg = xgifb_reg_get(vb->Part4Port, 0x01);
1794                 if (reg >= 0xE0) {
1795                         hw_info->ujVBChipID = VB_CHIP_302LV;
1796                         dev_info(&pdev->dev,
1797                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1798                                  reg);
1799                 } else if (reg >= 0xD0) {
1800                         hw_info->ujVBChipID = VB_CHIP_301LV;
1801                         dev_info(&pdev->dev,
1802                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1803                                  reg);
1804                 } else {
1805                         hw_info->ujVBChipID = VB_CHIP_301;
1806                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1807                 }
1808                 break;
1809         case HASVB_302:
1810                 reg = xgifb_reg_get(vb->Part4Port, 0x01);
1811                 if (reg >= 0xE0) {
1812                         hw_info->ujVBChipID = VB_CHIP_302LV;
1813                         dev_info(&pdev->dev,
1814                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1815                                  reg);
1816                 } else if (reg >= 0xD0) {
1817                         hw_info->ujVBChipID = VB_CHIP_301LV;
1818                         dev_info(&pdev->dev,
1819                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1820                                  reg);
1821                 } else if (reg >= 0xB0) {
1822                         reg1 = xgifb_reg_get(vb->Part4Port,
1823                                              0x23);
1824
1825                         hw_info->ujVBChipID = VB_CHIP_302B;
1826
1827                 } else {
1828                         hw_info->ujVBChipID = VB_CHIP_302;
1829                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1830                 }
1831                 break;
1832         case HASVB_LVDS:
1833                 hw_info->ulExternalChip = 0x1;
1834                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1835                 break;
1836         case HASVB_TRUMPION:
1837                 hw_info->ulExternalChip = 0x2;
1838                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1839                 break;
1840         case HASVB_CHRONTEL:
1841                 hw_info->ulExternalChip = 0x4;
1842                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1843                 break;
1844         case HASVB_LVDS_CHRONTEL:
1845                 hw_info->ulExternalChip = 0x5;
1846                 dev_info(&pdev->dev,
1847                          "LVDS transmitter and Chrontel TV encoder detected\n");
1848                 break;
1849         default:
1850                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1851                 break;
1852         }
1853
1854         if (xgifb_info->hasVB != HASVB_NONE)
1855                 XGIfb_detect_VB(xgifb_info);
1856         else if (xgifb_info->chip != XG21)
1857                 xgifb_info->display2 = XGIFB_DISP_NONE;
1858
1859         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1860                 if (!enable_dstn) {
1861                         reg = xgifb_reg_get(vb->P3d4,
1862                                             IND_XGI_LCD_PANEL);
1863                         reg &= 0x0f;
1864                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1865                 }
1866         }
1867
1868         xgifb_info->mode_idx = -1;
1869
1870         if (mode)
1871                 XGIfb_search_mode(xgifb_info, mode);
1872         else if (vesa != -1)
1873                 XGIfb_search_vesamode(xgifb_info, vesa);
1874
1875         if (xgifb_info->mode_idx >= 0)
1876                 xgifb_info->mode_idx =
1877                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1878
1879         if (xgifb_info->mode_idx < 0) {
1880                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1881                     xgifb_info->chip == XG21)
1882                         xgifb_info->mode_idx =
1883                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1884                 else
1885                         xgifb_info->mode_idx = DEFAULT_MODE;
1886         }
1887
1888         if (xgifb_info->mode_idx < 0) {
1889                 dev_err(&pdev->dev, "No supported video mode found\n");
1890                 ret = -EINVAL;
1891                 goto error_1;
1892         }
1893
1894         /* set default refresh rate */
1895         xgifb_info->refresh_rate = refresh_rate;
1896         if (xgifb_info->refresh_rate == 0)
1897                 xgifb_info->refresh_rate = 60;
1898         if (XGIfb_search_refresh_rate(xgifb_info, xgifb_info->refresh_rate) == 0) {
1899                 xgifb_info->rate_idx = 1;
1900                 xgifb_info->refresh_rate = 60;
1901         }
1902
1903         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1904         xgifb_info->video_vwidth =
1905                 xgifb_info->video_width =
1906                         XGIbios_mode[xgifb_info->mode_idx].xres;
1907         xgifb_info->video_vheight =
1908                 xgifb_info->video_height =
1909                         XGIbios_mode[xgifb_info->mode_idx].yres;
1910         xgifb_info->org_x = 0;
1911         xgifb_info->org_y = 0;
1912         xgifb_info->video_linelength =
1913                 xgifb_info->video_width *
1914                 (xgifb_info->video_bpp >> 3);
1915         switch (xgifb_info->video_bpp) {
1916         case 8:
1917                 xgifb_info->DstColor = 0x0000;
1918                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1919                 xgifb_info->video_cmap_len = 256;
1920                 break;
1921         case 16:
1922                 xgifb_info->DstColor = 0x8000;
1923                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1924                 xgifb_info->video_cmap_len = 16;
1925                 break;
1926         case 32:
1927                 xgifb_info->DstColor = 0xC000;
1928                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1929                 xgifb_info->video_cmap_len = 16;
1930                 break;
1931         default:
1932                 xgifb_info->video_cmap_len = 16;
1933                 pr_info("Unsupported depth %d\n",
1934                         xgifb_info->video_bpp);
1935                 break;
1936         }
1937
1938         pr_info("Default mode is %dx%dx%d (%dHz)\n",
1939                 xgifb_info->video_width, xgifb_info->video_height,
1940                 xgifb_info->video_bpp, xgifb_info->refresh_rate);
1941
1942         fb_info->var.red.length         = 8;
1943         fb_info->var.green.length       = 8;
1944         fb_info->var.blue.length        = 8;
1945         fb_info->var.activate           = FB_ACTIVATE_NOW;
1946         fb_info->var.height             = -1;
1947         fb_info->var.width              = -1;
1948         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
1949         fb_info->var.xres               = xgifb_info->video_width;
1950         fb_info->var.xres_virtual       = xgifb_info->video_width;
1951         fb_info->var.yres               = xgifb_info->video_height;
1952         fb_info->var.yres_virtual       = xgifb_info->video_height;
1953         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
1954
1955         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1956
1957         fb_info->var.pixclock = (u32)(1000000000 / XGIfb_mode_rate_to_dclock
1958                                       (vb, hw_info,
1959                                        XGIbios_mode[xgifb_info->mode_idx].mode_no));
1960
1961         if (XGIfb_mode_rate_to_ddata(vb, hw_info,
1962                                      XGIbios_mode[xgifb_info->mode_idx].mode_no,
1963                                      &fb_info->var.left_margin,
1964                                      &fb_info->var.right_margin,
1965                                      &fb_info->var.upper_margin,
1966                                      &fb_info->var.lower_margin,
1967                                      &fb_info->var.hsync_len,
1968                                      &fb_info->var.vsync_len,
1969                                      &fb_info->var.sync,
1970                                      &fb_info->var.vmode)) {
1971                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1972                     FB_VMODE_INTERLACED) {
1973                         fb_info->var.yres <<= 1;
1974                         fb_info->var.yres_virtual <<= 1;
1975                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1976                            FB_VMODE_DOUBLE) {
1977                         fb_info->var.pixclock >>= 1;
1978                         fb_info->var.yres >>= 1;
1979                         fb_info->var.yres_virtual >>= 1;
1980                 }
1981         }
1982
1983         fb_info->flags = FBINFO_FLAG_DEFAULT;
1984         fb_info->screen_base = xgifb_info->video_vbase;
1985         fb_info->fbops = &XGIfb_ops;
1986         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
1987         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
1988
1989         fb_alloc_cmap(&fb_info->cmap, 256, 0);
1990
1991         xgifb_info->mtrr = arch_phys_wc_add(xgifb_info->video_base,
1992                                             xgifb_info->video_size);
1993
1994         if (register_framebuffer(fb_info) < 0) {
1995                 ret = -EINVAL;
1996                 goto error_mtrr;
1997         }
1998
1999         dumpVGAReg(xgifb_info);
2000
2001         return 0;
2002
2003 error_mtrr:
2004         arch_phys_wc_del(xgifb_info->mtrr);
2005 error_1:
2006         iounmap(xgifb_info->mmio_vbase);
2007         iounmap(xgifb_info->video_vbase);
2008         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2009 error_0:
2010         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2011 error_disable:
2012         pci_disable_device(pdev);
2013 error:
2014         framebuffer_release(fb_info);
2015         return ret;
2016 }
2017
2018 /* -------------------- PCI DEVICE HANDLING -------------------- */
2019
2020 static void xgifb_remove(struct pci_dev *pdev)
2021 {
2022         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2023         struct fb_info *fb_info = xgifb_info->fb_info;
2024
2025         unregister_framebuffer(fb_info);
2026         arch_phys_wc_del(xgifb_info->mtrr);
2027         iounmap(xgifb_info->mmio_vbase);
2028         iounmap(xgifb_info->video_vbase);
2029         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2030         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2031         pci_disable_device(pdev);
2032         framebuffer_release(fb_info);
2033 }
2034
2035 static struct pci_driver xgifb_driver = {
2036         .name = "xgifb",
2037         .id_table = xgifb_pci_table,
2038         .probe = xgifb_probe,
2039         .remove = xgifb_remove
2040 };
2041
2042 /* -------------------- MODULE -------------------- */
2043
2044 module_param(mode, charp, 0000);
2045 MODULE_PARM_DESC(mode,
2046                  "Selects the desired default display mode in the format XxYxDepth (eg. 1024x768x16).");
2047
2048 module_param(forcecrt2type, charp, 0000);
2049 MODULE_PARM_DESC(forcecrt2type,
2050                  "Force the second display output type. Possible values are NONE, LCD, TV, VGA, SVIDEO or COMPOSITE.");
2051
2052 module_param(vesa, int, 0000);
2053 MODULE_PARM_DESC(vesa,
2054                  "Selects the desired default display mode by VESA mode number (eg. 0x117).");
2055
2056 module_param(filter, int, 0000);
2057 MODULE_PARM_DESC(filter,
2058                  "Selects TV flicker filter type (only for systems with a SiS301 video bridge). Possible values 0-7. Default: [no filter]).");
2059
2060 static int __init xgifb_init(void)
2061 {
2062         char *option = NULL;
2063
2064         if (forcecrt2type)
2065                 XGIfb_search_crt2type(forcecrt2type);
2066         if (fb_get_options("xgifb", &option))
2067                 return -ENODEV;
2068         XGIfb_setup(option);
2069
2070         return pci_register_driver(&xgifb_driver);
2071 }
2072
2073 static void __exit xgifb_remove_module(void)
2074 {
2075         pci_unregister_driver(&xgifb_driver);
2076         pr_debug("Module unloaded\n");
2077 }
2078
2079 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2080 MODULE_LICENSE("GPL");
2081 MODULE_AUTHOR("XGITECH , Others");
2082 module_init(xgifb_init);
2083 module_exit(xgifb_remove_module);