drivers/staging/xgifb/XGI_main_26.c

   1 /*
   2  * XG20, XG21, XG40, XG42 frame buffer device
   3  * for Linux kernels  2.5.x, 2.6.x
   4  * Base on TW's sis fbdev code.
   5  */
   6
   7 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
   8
   9 #include <linux/sizes.h>
  10 #include <linux/module.h>
  11 #include <linux/pci.h>
  12
  13 #include "XGI_main.h"
  14 #include "vb_init.h"
  15 #include "vb_util.h"
  16 #include "vb_setmode.h"
  17
  18 #define Index_CR_GPIO_Reg1 0x48
  19 #define Index_CR_GPIO_Reg3 0x4a
  20
  21 #define GPIOG_EN    BIT(6)
  22 #define GPIOG_READ  BIT(1)
  23
  24 static char *forcecrt2type;
  25 static char *mode;
  26 static int vesa = -1;
  27 static unsigned int refresh_rate;
  28
  29 /* -------------------- Macro definitions ---------------------------- */
  30
  31 #ifdef DEBUG
  32 static void dumpVGAReg(struct xgifb_video_info *xgifb_info)
  33 {
  34         u8 i, reg;
  35
  36         xgifb_reg_set(XGISR, 0x05, 0x86);
  37
  38         for (i = 0; i < 0x4f; i++) {
  39                 reg = xgifb_reg_get(XGISR, i);
  40                 pr_debug("o 3c4 %x\n", i);
  41                 pr_debug("i 3c5 => %x\n", reg);
  42         }
  43
  44         for (i = 0; i < 0xF0; i++) {
  45                 reg = xgifb_reg_get(XGICR, i);
  46                 pr_debug("o 3d4 %x\n", i);
  47                 pr_debug("i 3d5 => %x\n", reg);
  48         }
  49 }
  50 #else
  51 static inline void dumpVGAReg(struct xgifb_video_info *xgifb_info)
  52 {
  53 }
  54 #endif
  55
  56 /* --------------- Hardware Access Routines -------------------------- */
  57
  58 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
  59                 struct xgi_hw_device_info *HwDeviceExtension,
  60                 unsigned char modeno)
  61 {
  62         unsigned short ModeNo = modeno;
  63         unsigned short ModeIdIndex = 0, ClockIndex = 0;
  64         unsigned short RefreshRateTableIndex = 0;
  65         int Clock;
  66
  67         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  68
  69         XGI_SearchModeID(ModeNo, &ModeIdIndex);
  70
  71         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
  72                         ModeIdIndex, XGI_Pr);
  73
  74         ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
  75
  76         Clock = XGI_VCLKData[ClockIndex].CLOCK * 1000;
  77
  78         return Clock;
  79 }
  80
  81 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
  82                 struct xgi_hw_device_info *HwDeviceExtension,
  83                 unsigned char modeno,
  84                 u32 *left_margin, u32 *right_margin, u32 *upper_margin,
  85                 u32 *lower_margin, u32 *hsync_len, u32 *vsync_len, u32 *sync,
  86                 u32 *vmode)
  87 {
  88         unsigned short ModeNo = modeno;
  89         unsigned short ModeIdIndex, index = 0;
  90         unsigned short RefreshRateTableIndex = 0;
  91
  92         unsigned short VRE, VBE, VRS, VDE;
  93         unsigned short HRE, HBE, HRS, HDE;
  94         unsigned char sr_data, cr_data, cr_data2;
  95         int B, C, D, F, temp, j;
  96
  97         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
  98         if (!XGI_SearchModeID(ModeNo, &ModeIdIndex))
  99                 return 0;
 100         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 101                         ModeIdIndex, XGI_Pr);
 102         index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 103
 104         sr_data = XGI_CRT1Table[index].CR[5];
 105
 106         HDE = XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3;
 107
 108         cr_data = XGI_CRT1Table[index].CR[3];
 109
 110         /* Horizontal retrace (=sync) start */
 111         HRS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0xC0) << 2);
 112         F = HRS - HDE - 3;
 113
 114         sr_data = XGI_CRT1Table[index].CR[6];
 115
 116         cr_data = XGI_CRT1Table[index].CR[2];
 117
 118         cr_data2 = XGI_CRT1Table[index].CR[4];
 119
 120         /* Horizontal blank end */
 121         HBE = (cr_data & 0x1f) | ((unsigned short) (cr_data2 & 0x80) >> 2)
 122                         | ((unsigned short) (sr_data & 0x03) << 6);
 123
 124         /* Horizontal retrace (=sync) end */
 125         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 126
 127         temp = HBE - ((HDE - 1) & 255);
 128         B = (temp > 0) ? temp : (temp + 256);
 129
 130         temp = HRE - ((HDE + F + 3) & 63);
 131         C = (temp > 0) ? temp : (temp + 64);
 132
 133         D = B - F - C;
 134
 135         *left_margin = D * 8;
 136         *right_margin = F * 8;
 137         *hsync_len = C * 8;
 138
 139         sr_data = XGI_CRT1Table[index].CR[14];
 140
 141         cr_data2 = XGI_CRT1Table[index].CR[9];
 142
 143         VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes;
 144
 145         cr_data = XGI_CRT1Table[index].CR[10];
 146
 147         /* Vertical retrace (=sync) start */
 148         VRS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x04) << 6)
 149                         | ((unsigned short) (cr_data2 & 0x80) << 2)
 150                         | ((unsigned short) (sr_data & 0x08) << 7);
 151         F = VRS + 1 - VDE;
 152
 153         cr_data = XGI_CRT1Table[index].CR[13];
 154
 155         /* Vertical blank end */
 156         VBE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x10) << 4);
 157         temp = VBE - ((VDE - 1) & 511);
 158         B = (temp > 0) ? temp : (temp + 512);
 159
 160         cr_data = XGI_CRT1Table[index].CR[11];
 161
 162         /* Vertical retrace (=sync) end */
 163         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 164         temp = VRE - ((VDE + F - 1) & 31);
 165         C = (temp > 0) ? temp : (temp + 32);
 166
 167         D = B - F - C;
 168
 169         *upper_margin = D;
 170         *lower_margin = F;
 171         *vsync_len = C;
 172
 173         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 174                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 175         else
 176                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 177
 178         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 179                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 180         else
 181                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 182
 183         *vmode = FB_VMODE_NONINTERLACED;
 184         if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080)
 185                 *vmode = FB_VMODE_INTERLACED;
 186         else {
 187                 j = 0;
 188                 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
 189                         if (XGI330_EModeIDTable[j].Ext_ModeID ==
 190                             XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
 191                                 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
 192                                     DoubleScanMode) {
 193                                         *vmode = FB_VMODE_DOUBLE;
 194                                 }
 195                                 break;
 196                         }
 197                         j++;
 198                 }
 199         }
 200
 201         return 1;
 202 }
 203
 204 void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 205 {
 206         XGI_Pr->P3c4 = BaseAddr + 0x14;
 207         XGI_Pr->P3d4 = BaseAddr + 0x24;
 208         XGI_Pr->P3c0 = BaseAddr + 0x10;
 209         XGI_Pr->P3ce = BaseAddr + 0x1e;
 210         XGI_Pr->P3c2 = BaseAddr + 0x12;
 211         XGI_Pr->P3cc = BaseAddr + 0x1c;
 212         XGI_Pr->P3ca = BaseAddr + 0x1a;
 213         XGI_Pr->P3c6 = BaseAddr + 0x16;
 214         XGI_Pr->P3c7 = BaseAddr + 0x17;
 215         XGI_Pr->P3c8 = BaseAddr + 0x18;
 216         XGI_Pr->P3c9 = BaseAddr + 0x19;
 217         XGI_Pr->P3da = BaseAddr + 0x2A;
 218         XGI_Pr->Part0Port = BaseAddr + XGI_CRT2_PORT_00;
 219         /* Digital video interface registers (LCD) */
 220         XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
 221         /* 301 TV Encoder registers */
 222         XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
 223         /* 301 Macrovision registers */
 224         XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
 225         /* 301 VGA2 (and LCD) registers */
 226         XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
 227         /* 301 palette address port registers */
 228         XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
 229 }
 230
 231 /* ------------------ Internal helper routines ----------------- */
 232
 233 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 234 {
 235         int i = 0;
 236
 237         while ((XGIbios_mode[i].mode_no != 0)
 238                && (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
 239                 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE)
 240                     && (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE)
 241                     && (XGIbios_mode[i].bpp == 8)) {
 242                         return i;
 243                 }
 244                 i++;
 245         }
 246
 247         return -1;
 248 }
 249
 250 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
 251                               const char *name)
 252 {
 253         unsigned int xres;
 254         unsigned int yres;
 255         unsigned int bpp;
 256         int i;
 257
 258         if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
 259                 goto invalid_mode;
 260
 261         if (bpp == 24)
 262                 bpp = 32; /* That's for people who mix up color and fb depth. */
 263
 264         for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
 265                 if (XGIbios_mode[i].xres == xres &&
 266                     XGIbios_mode[i].yres == yres &&
 267                     XGIbios_mode[i].bpp == bpp) {
 268                         xgifb_info->mode_idx = i;
 269                         return;
 270                 }
 271 invalid_mode:
 272         pr_info("Invalid mode '%s'\n", name);
 273 }
 274
 275 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
 276                                   unsigned int vesamode)
 277 {
 278         int i = 0;
 279
 280         if (vesamode == 0)
 281                 goto invalid;
 282
 283         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 284
 285         while (XGIbios_mode[i].mode_no != 0) {
 286                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 287                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 288                         xgifb_info->mode_idx = i;
 289                         return;
 290                 }
 291                 i++;
 292         }
 293
 294 invalid:
 295         pr_info("Invalid VESA mode 0x%x'\n", vesamode);
 296 }
 297
 298 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 299 {
 300         u16 xres, yres;
 301         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 302         unsigned long required_mem;
 303
 304         if (xgifb_info->chip == XG21) {
 305                 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 306                         xres = xgifb_info->lvds_data.LVDSHDE;
 307                         yres = xgifb_info->lvds_data.LVDSVDE;
 308                         if (XGIbios_mode[myindex].xres > xres)
 309                                 return -1;
 310                         if (XGIbios_mode[myindex].yres > yres)
 311                                 return -1;
 312                         if ((XGIbios_mode[myindex].xres < xres) &&
 313                             (XGIbios_mode[myindex].yres < yres)) {
 314                                 if (XGIbios_mode[myindex].bpp > 8)
 315                                         return -1;
 316                         }
 317                 }
 318                 goto check_memory;
 319         }
 320
 321         /* FIXME: for now, all is valid on XG27 */
 322         if (xgifb_info->chip == XG27)
 323                 goto check_memory;
 324
 325         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 326                 return -1;
 327
 328         switch (xgifb_info->display2) {
 329         case XGIFB_DISP_LCD:
 330                 switch (hw_info->ulCRT2LCDType) {
 331                 case LCD_640x480:
 332                         xres = 640;
 333                         yres = 480;
 334                         break;
 335                 case LCD_800x600:
 336                         xres = 800;
 337                         yres = 600;
 338                         break;
 339                 case LCD_1024x600:
 340                         xres = 1024;
 341                         yres = 600;
 342                         break;
 343                 case LCD_1024x768:
 344                         xres = 1024;
 345                         yres = 768;
 346                         break;
 347                 case LCD_1152x768:
 348                         xres = 1152;
 349                         yres = 768;
 350                         break;
 351                 case LCD_1280x960:
 352                         xres = 1280;
 353                         yres = 960;
 354                         break;
 355                 case LCD_1280x768:
 356                         xres = 1280;
 357                         yres = 768;
 358                         break;
 359                 case LCD_1280x1024:
 360                         xres = 1280;
 361                         yres = 1024;
 362                         break;
 363                 case LCD_1400x1050:
 364                         xres = 1400;
 365                         yres = 1050;
 366                         break;
 367                 case LCD_1600x1200:
 368                         xres = 1600;
 369                         yres = 1200;
 370                         break;
 371                 default:
 372                         xres = 0;
 373                         yres = 0;
 374                         break;
 375                 }
 376                 if (XGIbios_mode[myindex].xres > xres)
 377                         return -1;
 378                 if (XGIbios_mode[myindex].yres > yres)
 379                         return -1;
 380                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 381                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 382                         switch (XGIbios_mode[myindex].xres) {
 383                         case 512:
 384                                 if (XGIbios_mode[myindex].yres != 512)
 385                                         return -1;
 386                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 387                                         return -1;
 388                                 break;
 389                         case 640:
 390                                 if ((XGIbios_mode[myindex].yres != 400)
 391                                                 && (XGIbios_mode[myindex].yres
 392                                                                 != 480))
 393                                         return -1;
 394                                 break;
 395                         case 800:
 396                                 if (XGIbios_mode[myindex].yres != 600)
 397                                         return -1;
 398                                 break;
 399                         case 1024:
 400                                 if ((XGIbios_mode[myindex].yres != 600) &&
 401                                     (XGIbios_mode[myindex].yres != 768))
 402                                         return -1;
 403                                 if ((XGIbios_mode[myindex].yres == 600) &&
 404                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 405                                         return -1;
 406                                 break;
 407                         case 1152:
 408                                 if ((XGIbios_mode[myindex].yres) != 768)
 409                                         return -1;
 410                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 411                                         return -1;
 412                                 break;
 413                         case 1280:
 414                                 if ((XGIbios_mode[myindex].yres != 768) &&
 415                                     (XGIbios_mode[myindex].yres != 1024))
 416                                         return -1;
 417                                 if ((XGIbios_mode[myindex].yres == 768) &&
 418                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 419                                         return -1;
 420                                 break;
 421                         case 1400:
 422                                 if (XGIbios_mode[myindex].yres != 1050)
 423                                         return -1;
 424                                 break;
 425                         case 1600:
 426                                 if (XGIbios_mode[myindex].yres != 1200)
 427                                         return -1;
 428                                 break;
 429                         default:
 430                                 return -1;
 431                         }
 432                 } else {
 433                         switch (XGIbios_mode[myindex].xres) {
 434                         case 512:
 435                                 if (XGIbios_mode[myindex].yres != 512)
 436                                         return -1;
 437                                 break;
 438                         case 640:
 439                                 if ((XGIbios_mode[myindex].yres != 400) &&
 440                                     (XGIbios_mode[myindex].yres != 480))
 441                                         return -1;
 442                                 break;
 443                         case 800:
 444                                 if (XGIbios_mode[myindex].yres != 600)
 445                                         return -1;
 446                                 break;
 447                         case 1024:
 448                                 if (XGIbios_mode[myindex].yres != 768)
 449                                         return -1;
 450                                 break;
 451                         case 1280:
 452                                 if ((XGIbios_mode[myindex].yres != 960) &&
 453                                     (XGIbios_mode[myindex].yres != 1024))
 454                                         return -1;
 455                                 if (XGIbios_mode[myindex].yres == 960) {
 456                                         if (hw_info->ulCRT2LCDType ==
 457                                             LCD_1400x1050)
 458                                                 return -1;
 459                                 }
 460                                 break;
 461                         case 1400:
 462                                 if (XGIbios_mode[myindex].yres != 1050)
 463                                         return -1;
 464                                 break;
 465                         case 1600:
 466                                 if (XGIbios_mode[myindex].yres != 1200)
 467                                         return -1;
 468                                 break;
 469                         default:
 470                                 return -1;
 471                         }
 472                 }
 473                 break;
 474         case XGIFB_DISP_TV:
 475                 switch (XGIbios_mode[myindex].xres) {
 476                 case 512:
 477                 case 640:
 478                 case 800:
 479                         break;
 480                 case 720:
 481                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 482                                 if (XGIbios_mode[myindex].yres != 480)
 483                                         return -1;
 484                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 485                                 if (XGIbios_mode[myindex].yres != 576)
 486                                         return -1;
 487                         }
 488                         /* LVDS/CHRONTEL does not support 720 */
 489                         if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
 490                             xgifb_info->hasVB == HASVB_CHRONTEL) {
 491                                 return -1;
 492                         }
 493                         break;
 494                 case 1024:
 495                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 496                                 if (XGIbios_mode[myindex].bpp == 32)
 497                                         return -1;
 498                         }
 499                         break;
 500                 default:
 501                         return -1;
 502                 }
 503                 break;
 504         case XGIFB_DISP_CRT:
 505                 if (XGIbios_mode[myindex].xres > 1280)
 506                         return -1;
 507                 break;
 508         case XGIFB_DISP_NONE:
 509                 break;
 510         }
 511
 512 check_memory:
 513         required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
 514                        XGIbios_mode[myindex].bpp / 8;
 515         if (required_mem > xgifb_info->video_size)
 516                 return -1;
 517         return myindex;
 518 }
 519
 520 static void XGIfb_search_crt2type(const char *name)
 521 {
 522         int i = 0;
 523
 524         if (name == NULL)
 525                 return;
 526
 527         while (XGI_crt2type[i].type_no != -1) {
 528                 if (!strcmp(name, XGI_crt2type[i].name)) {
 529                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 530                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 531                         break;
 532                 }
 533                 i++;
 534         }
 535         if (XGIfb_crt2type < 0)
 536                 pr_info("Invalid CRT2 type: %s\n", name);
 537 }
 538
 539 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
 540                                     unsigned int rate)
 541 {
 542         u16 xres, yres;
 543         int i = 0;
 544
 545         xres = XGIbios_mode[xgifb_info->mode_idx].xres;
 546         yres = XGIbios_mode[xgifb_info->mode_idx].yres;
 547
 548         xgifb_info->rate_idx = 0;
 549         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 550                 if ((XGIfb_vrate[i].xres == xres) &&
 551                     (XGIfb_vrate[i].yres == yres)) {
 552                         if (XGIfb_vrate[i].refresh == rate) {
 553                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 554                                 break;
 555                         } else if (XGIfb_vrate[i].refresh > rate) {
 556                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 557                                         pr_debug("Adjusting rate from %d up to %d\n",
 558                                                  rate, XGIfb_vrate[i].refresh);
 559                                         xgifb_info->rate_idx =
 560                                                 XGIfb_vrate[i].idx;
 561                                         xgifb_info->refresh_rate =
 562                                                 XGIfb_vrate[i].refresh;
 563                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 564                                                 <= 2) && (XGIfb_vrate[i].idx
 565                                                 != 1)) {
 566                                         pr_debug("Adjusting rate from %d down to %d\n",
 567                                                  rate,
 568                                                  XGIfb_vrate[i-1].refresh);
 569                                         xgifb_info->rate_idx =
 570                                                 XGIfb_vrate[i - 1].idx;
 571                                         xgifb_info->refresh_rate =
 572                                                 XGIfb_vrate[i - 1].refresh;
 573                                 }
 574                                 break;
 575                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 576                                 pr_debug("Adjusting rate from %d down to %d\n",
 577                                          rate, XGIfb_vrate[i].refresh);
 578                                 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
 579                                 break;
 580                         }
 581                 }
 582                 i++;
 583         }
 584         if (xgifb_info->rate_idx > 0)
 585                 return xgifb_info->rate_idx;
 586         pr_info("Unsupported rate %d for %dx%d\n",
 587                 rate, xres, yres);
 588         return 0;
 589 }
 590
 591 static void XGIfb_search_tvstd(const char *name)
 592 {
 593         int i = 0;
 594
 595         if (name == NULL)
 596                 return;
 597
 598         while (XGI_tvtype[i].type_no != -1) {
 599                 if (!strcmp(name, XGI_tvtype[i].name)) {
 600                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 601                         break;
 602                 }
 603                 i++;
 604         }
 605 }
 606
 607 /* ----------- FBDev related routines for all series ----------- */
 608
 609 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
 610                              struct fb_var_screeninfo *var)
 611 {
 612         switch (var->bits_per_pixel) {
 613         case 8:
 614                 var->red.offset = var->green.offset = var->blue.offset = 0;
 615                 var->red.length = var->green.length = var->blue.length = 6;
 616                 xgifb_info->video_cmap_len = 256;
 617                 break;
 618         case 16:
 619                 var->red.offset = 11;
 620                 var->red.length = 5;
 621                 var->green.offset = 5;
 622                 var->green.length = 6;
 623                 var->blue.offset = 0;
 624                 var->blue.length = 5;
 625                 var->transp.offset = 0;
 626                 var->transp.length = 0;
 627                 xgifb_info->video_cmap_len = 16;
 628                 break;
 629         case 32:
 630                 var->red.offset = 16;
 631                 var->red.length = 8;
 632                 var->green.offset = 8;
 633                 var->green.length = 8;
 634                 var->blue.offset = 0;
 635                 var->blue.length = 8;
 636                 var->transp.offset = 24;
 637                 var->transp.length = 8;
 638                 xgifb_info->video_cmap_len = 16;
 639                 break;
 640         }
 641 }
 642
 643 /* --------------------- SetMode routines ------------------------- */
 644
 645 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
 646 {
 647         u8 cr30 = 0, cr31 = 0;
 648
 649         cr31 = xgifb_reg_get(XGICR, 0x31);
 650         cr31 &= ~0x60;
 651
 652         switch (xgifb_info->display2) {
 653         case XGIFB_DISP_CRT:
 654                 cr30 = SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE;
 655                 cr31 |= SIS_DRIVER_MODE;
 656                 break;
 657         case XGIFB_DISP_LCD:
 658                 cr30 = SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE;
 659                 cr31 |= SIS_DRIVER_MODE;
 660                 break;
 661         case XGIFB_DISP_TV:
 662                 if (xgifb_info->TV_type == TVMODE_HIVISION)
 663                         cr30 = SIS_VB_OUTPUT_HIVISION
 664                                         | SIS_SIMULTANEOUS_VIEW_ENABLE;
 665                 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
 666                         cr30 = SIS_VB_OUTPUT_SVIDEO
 667                                         | SIS_SIMULTANEOUS_VIEW_ENABLE;
 668                 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
 669                         cr30 = SIS_VB_OUTPUT_COMPOSITE
 670                                         | SIS_SIMULTANEOUS_VIEW_ENABLE;
 671                 else if (xgifb_info->TV_plug == TVPLUG_SCART)
 672                         cr30 = SIS_VB_OUTPUT_SCART
 673                                         | SIS_SIMULTANEOUS_VIEW_ENABLE;
 674                 cr31 |= SIS_DRIVER_MODE;
 675
 676                 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
 677                         cr31 |= 0x01;
 678                 else
 679                         cr31 &= ~0x01;
 680                 break;
 681         default: /* disable CRT2 */
 682                 cr30 = 0x00;
 683                 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
 684         }
 685
 686         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 687         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 688         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
 689                                                 (xgifb_info->rate_idx & 0x0F));
 690 }
 691
 692 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 693 {
 694         u8 reg;
 695         unsigned char doit = 1;
 696
 697         if (xgifb_info->video_bpp == 8) {
 698                 /*
 699                  * We can't switch off CRT1 on LVDS/Chrontel
 700                  * in 8bpp Modes
 701                  */
 702                 if ((xgifb_info->hasVB == HASVB_LVDS) ||
 703                     (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
 704                         doit = 0;
 705                 }
 706                 /*
 707                  * We can't switch off CRT1 on 301B-DH
 708                  * in 8bpp Modes if using LCD
 709                  */
 710                 if (xgifb_info->display2 == XGIFB_DISP_LCD)
 711                         doit = 0;
 712         }
 713
 714         /* We can't switch off CRT1 if bridge is in slave mode */
 715         if (xgifb_info->hasVB != HASVB_NONE) {
 716                 reg = xgifb_reg_get(XGIPART1, 0x00);
 717
 718                 if ((reg & 0x50) == 0x10)
 719                         doit = 0;
 720
 721         } else {
 722                 XGIfb_crt1off = 0;
 723         }
 724
 725         reg = xgifb_reg_get(XGICR, 0x17);
 726         if ((XGIfb_crt1off) && (doit))
 727                 reg &= ~0x80;
 728         else
 729                 reg |= 0x80;
 730         xgifb_reg_set(XGICR, 0x17, reg);
 731
 732         xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
 733
 734         if (xgifb_info->display2 == XGIFB_DISP_TV &&
 735             xgifb_info->hasVB == HASVB_301) {
 736
 737                 reg = xgifb_reg_get(XGIPART4, 0x01);
 738
 739                 if (reg < 0xB0) { /* Set filter for XGI301 */
 740                         int filter_tb;
 741
 742                         switch (xgifb_info->video_width) {
 743                         case 320:
 744                                 filter_tb = (xgifb_info->TV_type ==
 745                                              TVMODE_NTSC) ? 4 : 12;
 746                                 break;
 747                         case 640:
 748                                 filter_tb = (xgifb_info->TV_type ==
 749                                              TVMODE_NTSC) ? 5 : 13;
 750                                 break;
 751                         case 720:
 752                                 filter_tb = (xgifb_info->TV_type ==
 753                                              TVMODE_NTSC) ? 6 : 14;
 754                                 break;
 755                         case 800:
 756                                 filter_tb = (xgifb_info->TV_type ==
 757                                              TVMODE_NTSC) ? 7 : 15;
 758                                 break;
 759                         default:
 760                                 filter_tb = 0;
 761                                 filter = -1;
 762                                 break;
 763                         }
 764                         xgifb_reg_or(XGIPART1,
 765                                      SIS_CRT2_WENABLE_315,
 766                                      0x01);
 767
 768                         if (xgifb_info->TV_type == TVMODE_NTSC) {
 769
 770                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
 771
 772                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 773
 774                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
 775
 776                                 } else if (xgifb_info->TV_plug
 777                                                 == TVPLUG_COMPOSITE) {
 778
 779                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 780
 781                                         switch (xgifb_info->video_width) {
 782                                         case 640:
 783                                                 xgifb_reg_set(XGIPART2,
 784                                                               0x35,
 785                                                               0xEB);
 786                                                 xgifb_reg_set(XGIPART2,
 787                                                               0x36,
 788                                                               0x04);
 789                                                 xgifb_reg_set(XGIPART2,
 790                                                               0x37,
 791                                                               0x25);
 792                                                 xgifb_reg_set(XGIPART2,
 793                                                               0x38,
 794                                                               0x18);
 795                                                 break;
 796                                         case 720:
 797                                                 xgifb_reg_set(XGIPART2,
 798                                                               0x35,
 799                                                               0xEE);
 800                                                 xgifb_reg_set(XGIPART2,
 801                                                               0x36,
 802                                                               0x0C);
 803                                                 xgifb_reg_set(XGIPART2,
 804                                                               0x37,
 805                                                               0x22);
 806                                                 xgifb_reg_set(XGIPART2,
 807                                                               0x38,
 808                                                               0x08);
 809                                                 break;
 810                                         case 800:
 811                                                 xgifb_reg_set(XGIPART2,
 812                                                               0x35,
 813                                                               0xEB);
 814                                                 xgifb_reg_set(XGIPART2,
 815                                                               0x36,
 816                                                               0x15);
 817                                                 xgifb_reg_set(XGIPART2,
 818                                                               0x37,
 819                                                               0x25);
 820                                                 xgifb_reg_set(XGIPART2,
 821                                                               0x38,
 822                                                               0xF6);
 823                                                 break;
 824                                         }
 825                                 }
 826
 827                         } else if (xgifb_info->TV_type == TVMODE_PAL) {
 828
 829                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
 830
 831                                 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
 832
 833                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
 834
 835                                 } else if (xgifb_info->TV_plug
 836                                                 == TVPLUG_COMPOSITE) {
 837
 838                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
 839
 840                                         switch (xgifb_info->video_width) {
 841                                         case 640:
 842                                                 xgifb_reg_set(XGIPART2,
 843                                                               0x35,
 844                                                               0xF1);
 845                                                 xgifb_reg_set(XGIPART2,
 846                                                               0x36,
 847                                                               0xF7);
 848                                                 xgifb_reg_set(XGIPART2,
 849                                                               0x37,
 850                                                               0x1F);
 851                                                 xgifb_reg_set(XGIPART2,
 852                                                               0x38,
 853                                                               0x32);
 854                                                 break;
 855                                         case 720:
 856                                                 xgifb_reg_set(XGIPART2,
 857                                                               0x35,
 858                                                               0xF3);
 859                                                 xgifb_reg_set(XGIPART2,
 860                                                               0x36,
 861                                                               0x00);
 862                                                 xgifb_reg_set(XGIPART2,
 863                                                               0x37,
 864                                                               0x1D);
 865                                                 xgifb_reg_set(XGIPART2,
 866                                                               0x38,
 867                                                               0x20);
 868                                                 break;
 869                                         case 800:
 870                                                 xgifb_reg_set(XGIPART2,
 871                                                               0x35,
 872                                                               0xFC);
 873                                                 xgifb_reg_set(XGIPART2,
 874                                                               0x36,
 875                                                               0xFB);
 876                                                 xgifb_reg_set(XGIPART2,
 877                                                               0x37,
 878                                                               0x14);
 879                                                 xgifb_reg_set(XGIPART2,
 880                                                               0x38,
 881                                                               0x2A);
 882                                                 break;
 883                                         }
 884                                 }
 885                         }
 886
 887                         if ((filter >= 0) && (filter <= 7)) {
 888                                 pr_debug("FilterTable[%d]-%d: %*ph\n",
 889                                          filter_tb, filter,
 890                                          4, XGI_TV_filter[filter_tb].
 891                                                    filter[filter]);
 892                                 xgifb_reg_set(
 893                                         XGIPART2,
 894                                         0x35,
 895                                         (XGI_TV_filter[filter_tb].
 896                                                 filter[filter][0]));
 897                                 xgifb_reg_set(
 898                                         XGIPART2,
 899                                         0x36,
 900                                         (XGI_TV_filter[filter_tb].
 901                                                 filter[filter][1]));
 902                                 xgifb_reg_set(
 903                                         XGIPART2,
 904                                         0x37,
 905                                         (XGI_TV_filter[filter_tb].
 906                                                 filter[filter][2]));
 907                                 xgifb_reg_set(
 908                                         XGIPART2,
 909                                         0x38,
 910                                         (XGI_TV_filter[filter_tb].
 911                                                 filter[filter][3]));
 912                         }
 913                 }
 914         }
 915 }
 916
 917 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 918                 struct fb_info *info)
 919 {
 920         struct xgifb_video_info *xgifb_info = info->par;
 921         struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
 922         unsigned int htotal = var->left_margin + var->xres + var->right_margin
 923                         + var->hsync_len;
 924         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 925                         + var->vsync_len;
 926 #if defined(__BIG_ENDIAN)
 927         u8 cr_data;
 928 #endif
 929         unsigned int drate = 0, hrate = 0;
 930         int found_mode = 0;
 931         int old_mode;
 932
 933         info->var.xres_virtual = var->xres_virtual;
 934         info->var.yres_virtual = var->yres_virtual;
 935         info->var.bits_per_pixel = var->bits_per_pixel;
 936
 937         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
 938                 vtotal <<= 1;
 939         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
 940                 vtotal <<= 2;
 941
 942         if (!htotal || !vtotal) {
 943                 pr_debug("Invalid 'var' information\n");
 944                 return -EINVAL;
 945         } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
 946                         var->pixclock, htotal, vtotal);
 947
 948         if (var->pixclock) {
 949                 drate = 1000000000 / var->pixclock;
 950                 hrate = (drate * 1000) / htotal;
 951                 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
 952                                 / vtotal);
 953         } else {
 954                 xgifb_info->refresh_rate = 60;
 955         }
 956
 957         pr_debug("Change mode to %dx%dx%d-%dHz\n",
 958                var->xres,
 959                var->yres,
 960                var->bits_per_pixel,
 961                xgifb_info->refresh_rate);
 962
 963         old_mode = xgifb_info->mode_idx;
 964         xgifb_info->mode_idx = 0;
 965
 966         while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
 967                (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
 968                 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
 969                     (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
 970                     (XGIbios_mode[xgifb_info->mode_idx].bpp
 971                                                 == var->bits_per_pixel)) {
 972                         found_mode = 1;
 973                         break;
 974                 }
 975                 xgifb_info->mode_idx++;
 976         }
 977
 978         if (found_mode)
 979                 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
 980                                                         xgifb_info->mode_idx);
 981         else
 982                 xgifb_info->mode_idx = -1;
 983
 984         if (xgifb_info->mode_idx < 0) {
 985                 pr_err("Mode %dx%dx%d not supported\n",
 986                        var->xres, var->yres, var->bits_per_pixel);
 987                 xgifb_info->mode_idx = old_mode;
 988                 return -EINVAL;
 989         }
 990
 991         if (XGIfb_search_refresh_rate(xgifb_info,
 992                                       xgifb_info->refresh_rate) == 0) {
 993                 xgifb_info->rate_idx = 1;
 994                 xgifb_info->refresh_rate = 60;
 995         }
 996
 997         if (isactive) {
 998
 999                 XGIfb_pre_setmode(xgifb_info);
1000                 if (XGISetModeNew(xgifb_info, hw_info,
1001                                   XGIbios_mode[xgifb_info->mode_idx].mode_no)
1002                                         == 0) {
1003                         pr_err("Setting mode[0x%x] failed\n",
1004                                XGIbios_mode[xgifb_info->mode_idx].mode_no);
1005                         return -EINVAL;
1006                 }
1007                 info->fix.line_length = (info->var.xres_virtual
1008                                 * info->var.bits_per_pixel) >> 6;
1009
1010                 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1011
1012                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1013                 xgifb_reg_set(XGISR,
1014                               0x0E,
1015                               (info->fix.line_length & 0xff00) >> 8);
1016
1017                 XGIfb_post_setmode(xgifb_info);
1018
1019                 pr_debug("Set new mode: %dx%dx%d-%d\n",
1020                          XGIbios_mode[xgifb_info->mode_idx].xres,
1021                          XGIbios_mode[xgifb_info->mode_idx].yres,
1022                          XGIbios_mode[xgifb_info->mode_idx].bpp,
1023                          xgifb_info->refresh_rate);
1024
1025                 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1026                 xgifb_info->video_vwidth = info->var.xres_virtual;
1027                 xgifb_info->video_width =
1028                         XGIbios_mode[xgifb_info->mode_idx].xres;
1029                 xgifb_info->video_vheight = info->var.yres_virtual;
1030                 xgifb_info->video_height =
1031                         XGIbios_mode[xgifb_info->mode_idx].yres;
1032                 xgifb_info->org_x = xgifb_info->org_y = 0;
1033                 xgifb_info->video_linelength = info->var.xres_virtual
1034                                 * (xgifb_info->video_bpp >> 3);
1035                 switch (xgifb_info->video_bpp) {
1036                 case 8:
1037                         xgifb_info->DstColor = 0x0000;
1038                         xgifb_info->XGI310_AccelDepth = 0x00000000;
1039                         xgifb_info->video_cmap_len = 256;
1040 #if defined(__BIG_ENDIAN)
1041                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1042                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1043 #endif
1044                         break;
1045                 case 16:
1046                         xgifb_info->DstColor = 0x8000;
1047                         xgifb_info->XGI310_AccelDepth = 0x00010000;
1048 #if defined(__BIG_ENDIAN)
1049                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1050                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1051 #endif
1052                         xgifb_info->video_cmap_len = 16;
1053                         break;
1054                 case 32:
1055                         xgifb_info->DstColor = 0xC000;
1056                         xgifb_info->XGI310_AccelDepth = 0x00020000;
1057                         xgifb_info->video_cmap_len = 16;
1058 #if defined(__BIG_ENDIAN)
1059                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1060                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1061 #endif
1062                         break;
1063                 default:
1064                         xgifb_info->video_cmap_len = 16;
1065                         pr_err("Unsupported depth %d\n",
1066                                xgifb_info->video_bpp);
1067                         break;
1068                 }
1069         }
1070         XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1071
1072         dumpVGAReg(xgifb_info);
1073         return 0;
1074 }
1075
1076 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1077 {
1078         struct xgifb_video_info *xgifb_info = info->par;
1079         unsigned int base;
1080
1081         base = var->yoffset * info->var.xres_virtual + var->xoffset;
1082
1083         /* calculate base bpp dep. */
1084         switch (info->var.bits_per_pixel) {
1085         case 16:
1086                 base >>= 1;
1087                 break;
1088         case 32:
1089                 break;
1090         case 8:
1091         default:
1092                 base >>= 2;
1093                 break;
1094         }
1095
1096         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1097
1098         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1099         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1100         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1101         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1102         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1103
1104         if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1105                 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1106                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1107                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1108                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1109                 xgifb_reg_and_or(XGIPART1,
1110                                  0x02,
1111                                  0x7F,
1112                                  ((base >> 24) & 0x01) << 7);
1113         }
1114         return 0;
1115 }
1116
1117 static int XGIfb_open(struct fb_info *info, int user)
1118 {
1119         return 0;
1120 }
1121
1122 static int XGIfb_release(struct fb_info *info, int user)
1123 {
1124         return 0;
1125 }
1126
1127 /* similar to sisfb_get_cmap_len */
1128 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1129 {
1130         return (var->bits_per_pixel == 8) ? 256 : 16;
1131 }
1132
1133 static int XGIfb_setcolreg(unsigned int regno, unsigned int red,
1134                            unsigned int green, unsigned int blue,
1135                            unsigned int transp, struct fb_info *info)
1136 {
1137         struct xgifb_video_info *xgifb_info = info->par;
1138
1139         if (regno >= XGIfb_get_cmap_len(&info->var))
1140                 return 1;
1141
1142         switch (info->var.bits_per_pixel) {
1143         case 8:
1144                 outb(regno, XGIDACA);
1145                 outb((red >> 10), XGIDACD);
1146                 outb((green >> 10), XGIDACD);
1147                 outb((blue >> 10), XGIDACD);
1148                 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1149                         outb(regno, XGIDAC2A);
1150                         outb((red >> 8), XGIDAC2D);
1151                         outb((green >> 8), XGIDAC2D);
1152                         outb((blue >> 8), XGIDAC2D);
1153                 }
1154                 break;
1155         case 16:
1156                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1157                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1158                                 >> 11);
1159                 break;
1160         case 32:
1161                 red >>= 8;
1162                 green >>= 8;
1163                 blue >>= 8;
1164                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1165                                 << 8) | (blue);
1166                 break;
1167         }
1168         return 0;
1169 }
1170
1171 /* ----------- FBDev related routines for all series ---------- */
1172
1173 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1174                 struct fb_info *info)
1175 {
1176         struct xgifb_video_info *xgifb_info = info->par;
1177
1178         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1179
1180         strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1181
1182         /* if register_framebuffer has been called, we must lock */
1183         if (atomic_read(&info->count))
1184                 mutex_lock(&info->mm_lock);
1185
1186         fix->smem_start = xgifb_info->video_base;
1187         fix->smem_len = xgifb_info->video_size;
1188
1189         /* if register_framebuffer has been called, we can unlock */
1190         if (atomic_read(&info->count))
1191                 mutex_unlock(&info->mm_lock);
1192
1193         fix->type = FB_TYPE_PACKED_PIXELS;
1194         fix->type_aux = 0;
1195         if (xgifb_info->video_bpp == 8)
1196                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1197         else
1198                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1199         fix->xpanstep = 0;
1200         if (XGIfb_ypan)
1201                 fix->ypanstep = 1;
1202         fix->ywrapstep = 0;
1203         fix->line_length = xgifb_info->video_linelength;
1204         fix->mmio_start = xgifb_info->mmio_base;
1205         fix->mmio_len = xgifb_info->mmio_size;
1206         fix->accel = FB_ACCEL_SIS_XABRE;
1207
1208         return 0;
1209 }
1210
1211 static int XGIfb_set_par(struct fb_info *info)
1212 {
1213         int err;
1214
1215         err = XGIfb_do_set_var(&info->var, 1, info);
1216         if (err)
1217                 return err;
1218         XGIfb_get_fix(&info->fix, -1, info);
1219         return 0;
1220 }
1221
1222 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1223 {
1224         struct xgifb_video_info *xgifb_info = info->par;
1225         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1226                         + var->hsync_len;
1227         unsigned int vtotal = 0;
1228         unsigned int drate = 0, hrate = 0;
1229         int found_mode = 0;
1230         int refresh_rate, search_idx;
1231
1232         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1233                 vtotal = var->upper_margin + var->yres + var->lower_margin
1234                                 + var->vsync_len;
1235                 vtotal <<= 1;
1236         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1237                 vtotal = var->upper_margin + var->yres + var->lower_margin
1238                                 + var->vsync_len;
1239                 vtotal <<= 2;
1240         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1241                 vtotal = var->upper_margin + (var->yres / 2)
1242                                 + var->lower_margin + var->vsync_len;
1243         } else
1244                 vtotal = var->upper_margin + var->yres + var->lower_margin
1245                                 + var->vsync_len;
1246
1247         if (!(htotal) || !(vtotal)) {
1248                 pr_debug("No valid timing data\n");
1249                 return -EINVAL;
1250         }
1251
1252         if (var->pixclock && htotal && vtotal) {
1253                 drate = 1000000000 / var->pixclock;
1254                 hrate = (drate * 1000) / htotal;
1255                 xgifb_info->refresh_rate =
1256                         (unsigned int) (hrate * 2 / vtotal);
1257                 pr_debug(
1258                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1259                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1260                         __func__, var->pixclock, htotal, vtotal,
1261                         __func__, drate, hrate, xgifb_info->refresh_rate);
1262         } else {
1263                 xgifb_info->refresh_rate = 60;
1264         }
1265
1266         /* Calculation wrong for 1024x600 - force it to 60Hz */
1267         if ((var->xres == 1024) && (var->yres == 600))
1268                 refresh_rate = 60;
1269
1270         search_idx = 0;
1271         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1272                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1273                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1274                         (XGIbios_mode[search_idx].yres == var->yres) &&
1275                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1276                         if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1277                                 found_mode = 1;
1278                                 break;
1279                         }
1280                 }
1281                 search_idx++;
1282         }
1283
1284         if (!found_mode) {
1285
1286                 pr_err("%dx%dx%d is no valid mode\n",
1287                         var->xres, var->yres, var->bits_per_pixel);
1288                 search_idx = 0;
1289                 while (XGIbios_mode[search_idx].mode_no != 0) {
1290                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1291                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1292                             (var->bits_per_pixel ==
1293                              XGIbios_mode[search_idx].bpp)) {
1294                                 if (XGIfb_validate_mode(xgifb_info,
1295                                                         search_idx) > 0) {
1296                                         found_mode = 1;
1297                                         break;
1298                                 }
1299                         }
1300                         search_idx++;
1301                 }
1302                 if (found_mode) {
1303                         var->xres = XGIbios_mode[search_idx].xres;
1304                         var->yres = XGIbios_mode[search_idx].yres;
1305                         pr_debug("Adapted to mode %dx%dx%d\n",
1306                                 var->xres, var->yres, var->bits_per_pixel);
1307
1308                 } else {
1309                         pr_err("Failed to find similar mode to %dx%dx%d\n",
1310                                 var->xres, var->yres, var->bits_per_pixel);
1311                         return -EINVAL;
1312                 }
1313         }
1314
1315         /* Adapt RGB settings */
1316         XGIfb_bpp_to_var(xgifb_info, var);
1317
1318         if (!XGIfb_ypan) {
1319                 if (var->xres != var->xres_virtual)
1320                         var->xres_virtual = var->xres;
1321                 if (var->yres != var->yres_virtual)
1322                         var->yres_virtual = var->yres;
1323         }
1324
1325         /* Truncate offsets to maximum if too high */
1326         if (var->xoffset > var->xres_virtual - var->xres)
1327                 var->xoffset = var->xres_virtual - var->xres - 1;
1328
1329         if (var->yoffset > var->yres_virtual - var->yres)
1330                 var->yoffset = var->yres_virtual - var->yres - 1;
1331
1332         /* Set everything else to 0 */
1333         var->red.msb_right =
1334         var->green.msb_right =
1335         var->blue.msb_right =
1336         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1337
1338         return 0;
1339 }
1340
1341 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1342                 struct fb_info *info)
1343 {
1344         int err;
1345
1346         if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1347                 return -EINVAL;
1348         if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1349                 return -EINVAL;
1350
1351         if (var->vmode & FB_VMODE_YWRAP) {
1352                 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1353                         return -EINVAL;
1354         } else if (var->xoffset + info->var.xres > info->var.xres_virtual
1355                                 || var->yoffset + info->var.yres
1356                                                 > info->var.yres_virtual) {
1357                 return -EINVAL;
1358         }
1359         err = XGIfb_pan_var(var, info);
1360         if (err < 0)
1361                 return err;
1362
1363         info->var.xoffset = var->xoffset;
1364         info->var.yoffset = var->yoffset;
1365         if (var->vmode & FB_VMODE_YWRAP)
1366                 info->var.vmode |= FB_VMODE_YWRAP;
1367         else
1368                 info->var.vmode &= ~FB_VMODE_YWRAP;
1369
1370         return 0;
1371 }
1372
1373 static int XGIfb_blank(int blank, struct fb_info *info)
1374 {
1375         struct xgifb_video_info *xgifb_info = info->par;
1376         u8 reg;
1377
1378         reg = xgifb_reg_get(XGICR, 0x17);
1379
1380         if (blank > 0)
1381                 reg &= 0x7f;
1382         else
1383                 reg |= 0x80;
1384
1385         xgifb_reg_set(XGICR, 0x17, reg);
1386         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1387         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1388         return 0;
1389 }
1390
1391 static struct fb_ops XGIfb_ops = {
1392         .owner = THIS_MODULE,
1393         .fb_open = XGIfb_open,
1394         .fb_release = XGIfb_release,
1395         .fb_check_var = XGIfb_check_var,
1396         .fb_set_par = XGIfb_set_par,
1397         .fb_setcolreg = XGIfb_setcolreg,
1398         .fb_pan_display = XGIfb_pan_display,
1399         .fb_blank = XGIfb_blank,
1400         .fb_fillrect = cfb_fillrect,
1401         .fb_copyarea = cfb_copyarea,
1402         .fb_imageblit = cfb_imageblit,
1403 };
1404
1405 /* ---------------- Chip generation dependent routines ---------------- */
1406
1407 /* for XGI 315/550/650/740/330 */
1408
1409 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1410 {
1411
1412         u8 ChannelNum, tmp;
1413         u8 reg = 0;
1414
1415         /* xorg driver sets 32MB * 1 channel */
1416         if (xgifb_info->chip == XG27)
1417                 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1418
1419         reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1420         if (!reg)
1421                 return -1;
1422
1423         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1424         case XGI_DRAM_SIZE_1MB:
1425                 xgifb_info->video_size = 0x100000;
1426                 break;
1427         case XGI_DRAM_SIZE_2MB:
1428                 xgifb_info->video_size = 0x200000;
1429                 break;
1430         case XGI_DRAM_SIZE_4MB:
1431                 xgifb_info->video_size = 0x400000;
1432                 break;
1433         case XGI_DRAM_SIZE_8MB:
1434                 xgifb_info->video_size = 0x800000;
1435                 break;
1436         case XGI_DRAM_SIZE_16MB:
1437                 xgifb_info->video_size = 0x1000000;
1438                 break;
1439         case XGI_DRAM_SIZE_32MB:
1440                 xgifb_info->video_size = 0x2000000;
1441                 break;
1442         case XGI_DRAM_SIZE_64MB:
1443                 xgifb_info->video_size = 0x4000000;
1444                 break;
1445         case XGI_DRAM_SIZE_128MB:
1446                 xgifb_info->video_size = 0x8000000;
1447                 break;
1448         case XGI_DRAM_SIZE_256MB:
1449                 xgifb_info->video_size = 0x10000000;
1450                 break;
1451         default:
1452                 return -1;
1453         }
1454
1455         tmp = (reg & 0x0c) >> 2;
1456         switch (xgifb_info->chip) {
1457         case XG20:
1458         case XG21:
1459         case XG27:
1460                 ChannelNum = 1;
1461                 break;
1462
1463         case XG42:
1464                 if (reg & 0x04)
1465                         ChannelNum = 2;
1466                 else
1467                         ChannelNum = 1;
1468                 break;
1469
1470         case XG40:
1471         default:
1472                 if (tmp == 2)
1473                         ChannelNum = 2;
1474                 else if (tmp == 3)
1475                         ChannelNum = 3;
1476                 else
1477                         ChannelNum = 1;
1478                 break;
1479         }
1480
1481         xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1482
1483         pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1484                reg,
1485                xgifb_info->video_size, ChannelNum);
1486         return 0;
1487
1488 }
1489
1490 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1491 {
1492         u8 cr32, temp = 0;
1493
1494         xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1495
1496         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1497
1498         if ((cr32 & SIS_CRT1) && !XGIfb_crt1off)
1499                 XGIfb_crt1off = 0;
1500         else {
1501                 if (cr32 & 0x5F)
1502                         XGIfb_crt1off = 1;
1503                 else
1504                         XGIfb_crt1off = 0;
1505         }
1506
1507         if (!xgifb_info->display2_force) {
1508                 if (cr32 & SIS_VB_TV)
1509                         xgifb_info->display2 = XGIFB_DISP_TV;
1510                 else if (cr32 & SIS_VB_LCD)
1511                         xgifb_info->display2 = XGIFB_DISP_LCD;
1512                 else if (cr32 & SIS_VB_CRT2)
1513                         xgifb_info->display2 = XGIFB_DISP_CRT;
1514                 else
1515                         xgifb_info->display2 = XGIFB_DISP_NONE;
1516         }
1517
1518         if (XGIfb_tvplug != -1)
1519                 /* Override with option */
1520                 xgifb_info->TV_plug = XGIfb_tvplug;
1521         else if (cr32 & SIS_VB_HIVISION) {
1522                 xgifb_info->TV_type = TVMODE_HIVISION;
1523                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1524         } else if (cr32 & SIS_VB_SVIDEO)
1525                 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1526         else if (cr32 & SIS_VB_COMPOSITE)
1527                 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1528         else if (cr32 & SIS_VB_SCART)
1529                 xgifb_info->TV_plug = TVPLUG_SCART;
1530
1531         if (xgifb_info->TV_type == 0) {
1532                 temp = xgifb_reg_get(XGICR, 0x38);
1533                 if (temp & 0x10)
1534                         xgifb_info->TV_type = TVMODE_PAL;
1535                 else
1536                         xgifb_info->TV_type = TVMODE_NTSC;
1537         }
1538
1539         /* Copy forceCRT1 option to CRT1off if option is given */
1540         if (XGIfb_forcecrt1 != -1) {
1541                 if (XGIfb_forcecrt1)
1542                         XGIfb_crt1off = 0;
1543                 else
1544                         XGIfb_crt1off = 1;
1545         }
1546 }
1547
1548 static bool XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1549 {
1550         u8 vb_chipid;
1551
1552         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1553         switch (vb_chipid) {
1554         case 0x01:
1555                 xgifb_info->hasVB = HASVB_301;
1556                 break;
1557         case 0x02:
1558                 xgifb_info->hasVB = HASVB_302;
1559                 break;
1560         default:
1561                 xgifb_info->hasVB = HASVB_NONE;
1562                 return false;
1563         }
1564         return true;
1565 }
1566
1567 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1568 {
1569         u8 reg;
1570
1571         if (!XGIfb_has_VB(xgifb_info)) {
1572                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1573                 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1574                 case SIS_EXTERNAL_CHIP_LVDS:
1575                         xgifb_info->hasVB = HASVB_LVDS;
1576                         break;
1577                 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1578                         xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1579                         break;
1580                 default:
1581                         break;
1582                 }
1583         }
1584 }
1585
1586 static int __init xgifb_optval(char *fullopt, int validx)
1587 {
1588         unsigned long lres;
1589
1590         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1591                 pr_err("Invalid value for option: %s\n", fullopt);
1592                 return 0;
1593         }
1594         return lres;
1595 }
1596
1597 static int __init XGIfb_setup(char *options)
1598 {
1599         char *this_opt;
1600
1601         if (!options || !*options)
1602                 return 0;
1603
1604         pr_info("Options: %s\n", options);
1605
1606         while ((this_opt = strsep(&options, ",")) != NULL) {
1607
1608                 if (!*this_opt)
1609                         continue;
1610
1611                 if (!strncmp(this_opt, "mode:", 5)) {
1612                         mode = this_opt + 5;
1613                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1614                         vesa = xgifb_optval(this_opt, 5);
1615                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1616                         refresh_rate = xgifb_optval(this_opt, 6);
1617                 } else if (!strncmp(this_opt, "rate:", 5)) {
1618                         refresh_rate = xgifb_optval(this_opt, 5);
1619                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1620                         XGIfb_crt1off = 1;
1621                 } else if (!strncmp(this_opt, "filter:", 7)) {
1622                         filter = xgifb_optval(this_opt, 7);
1623                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1624                         XGIfb_search_crt2type(this_opt + 14);
1625                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1626                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1627                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1628                         XGIfb_search_tvstd(this_opt + 7);
1629                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1630                         XGIfb_search_tvstd(this_opt + 7);
1631                 } else if (!strncmp(this_opt, "dstn", 4)) {
1632                         enable_dstn = 1;
1633                         /* DSTN overrules forcecrt2type */
1634                         XGIfb_crt2type = XGIFB_DISP_LCD;
1635                 } else if (!strncmp(this_opt, "noypan", 6)) {
1636                         XGIfb_ypan = 0;
1637                 } else {
1638                         mode = this_opt;
1639                 }
1640         }
1641         return 0;
1642 }
1643
1644 static int xgifb_probe(struct pci_dev *pdev,
1645                 const struct pci_device_id *ent)
1646 {
1647         u8 reg, reg1;
1648         u8 CR48, CR38;
1649         int ret;
1650         struct fb_info *fb_info;
1651         struct xgifb_video_info *xgifb_info;
1652         struct xgi_hw_device_info *hw_info;
1653         unsigned long video_size_max;
1654
1655         fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1656         if (!fb_info)
1657                 return -ENOMEM;
1658
1659         xgifb_info = fb_info->par;
1660         hw_info = &xgifb_info->hw_info;
1661         xgifb_info->fb_info = fb_info;
1662         xgifb_info->chip_id = pdev->device;
1663         pci_read_config_byte(pdev,
1664                              PCI_REVISION_ID,
1665                              &xgifb_info->revision_id);
1666         hw_info->jChipRevision = xgifb_info->revision_id;
1667
1668         xgifb_info->pcibus = pdev->bus->number;
1669         xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1670         xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1671         xgifb_info->subsysvendor = pdev->subsystem_vendor;
1672         xgifb_info->subsysdevice = pdev->subsystem_device;
1673
1674         video_size_max = pci_resource_len(pdev, 0);
1675         xgifb_info->video_base = pci_resource_start(pdev, 0);
1676         xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1677         xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1678         xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1679         dev_info(&pdev->dev, "Relocate IO address: %Lx [%08lx]\n",
1680                  (u64) pci_resource_start(pdev, 2),
1681                  xgifb_info->vga_base);
1682
1683         if (pci_enable_device(pdev)) {
1684                 ret = -EIO;
1685                 goto error;
1686         }
1687
1688         if (XGIfb_crt2type != -1) {
1689                 xgifb_info->display2 = XGIfb_crt2type;
1690                 xgifb_info->display2_force = true;
1691         }
1692
1693         XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1694
1695         xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1696         reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1697
1698         if (reg1 != 0xa1) { /*I/O error */
1699                 dev_err(&pdev->dev, "I/O error\n");
1700                 ret = -EIO;
1701                 goto error_disable;
1702         }
1703
1704         switch (xgifb_info->chip_id) {
1705         case PCI_DEVICE_ID_XGI_20:
1706                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1707                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1708                 if (CR48&GPIOG_READ)
1709                         xgifb_info->chip = XG21;
1710                 else
1711                         xgifb_info->chip = XG20;
1712                 break;
1713         case PCI_DEVICE_ID_XGI_40:
1714                 xgifb_info->chip = XG40;
1715                 break;
1716         case PCI_DEVICE_ID_XGI_42:
1717                 xgifb_info->chip = XG42;
1718                 break;
1719         case PCI_DEVICE_ID_XGI_27:
1720                 xgifb_info->chip = XG27;
1721                 break;
1722         default:
1723                 ret = -ENODEV;
1724                 goto error_disable;
1725         }
1726
1727         dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1728         hw_info->jChipType = xgifb_info->chip;
1729
1730         if (XGIfb_get_dram_size(xgifb_info)) {
1731                 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1732                                                 SZ_16M);
1733         } else if (xgifb_info->video_size > video_size_max) {
1734                 xgifb_info->video_size = video_size_max;
1735         }
1736
1737         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
1738         xgifb_reg_or(XGISR,
1739                      IND_SIS_PCI_ADDRESS_SET,
1740                      (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1741         /* Enable 2D accelerator engine */
1742         xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1743
1744         hw_info->ulVideoMemorySize = xgifb_info->video_size;
1745
1746         if (!request_mem_region(xgifb_info->video_base,
1747                                 xgifb_info->video_size,
1748                                 "XGIfb FB")) {
1749                 dev_err(&pdev->dev, "Unable request memory size %x\n",
1750                        xgifb_info->video_size);
1751                 dev_err(&pdev->dev,
1752                         "Fatal error: Unable to reserve frame buffer memory. Is there another framebuffer driver active?\n");
1753                 ret = -ENODEV;
1754                 goto error_disable;
1755         }
1756
1757         if (!request_mem_region(xgifb_info->mmio_base,
1758                                 xgifb_info->mmio_size,
1759                                 "XGIfb MMIO")) {
1760                 dev_err(&pdev->dev,
1761                         "Fatal error: Unable to reserve MMIO region\n");
1762                 ret = -ENODEV;
1763                 goto error_0;
1764         }
1765
1766         xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
1767                 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1768         xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1769                                             xgifb_info->mmio_size);
1770
1771         dev_info(&pdev->dev,
1772                  "Framebuffer at 0x%Lx, mapped to 0x%p, size %dk\n",
1773                  (u64) xgifb_info->video_base,
1774                  xgifb_info->video_vbase,
1775                  xgifb_info->video_size / 1024);
1776
1777         dev_info(&pdev->dev,
1778                  "MMIO at 0x%Lx, mapped to 0x%p, size %ldk\n",
1779                  (u64) xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1780                  xgifb_info->mmio_size / 1024);
1781
1782         pci_set_drvdata(pdev, xgifb_info);
1783         if (!XGIInitNew(pdev))
1784                 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1785
1786         xgifb_info->mtrr = -1;
1787
1788         xgifb_info->hasVB = HASVB_NONE;
1789         if ((xgifb_info->chip == XG20) ||
1790             (xgifb_info->chip == XG27)) {
1791                 xgifb_info->hasVB = HASVB_NONE;
1792         } else if (xgifb_info->chip == XG21) {
1793                 CR38 = xgifb_reg_get(XGICR, 0x38);
1794                 if ((CR38&0xE0) == 0xC0)
1795                         xgifb_info->display2 = XGIFB_DISP_LCD;
1796                 else if ((CR38&0xE0) == 0x60)
1797                         xgifb_info->hasVB = HASVB_CHRONTEL;
1798                 else
1799                         xgifb_info->hasVB = HASVB_NONE;
1800         } else {
1801                 XGIfb_get_VB_type(xgifb_info);
1802         }
1803
1804         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1805
1806         hw_info->ulExternalChip = 0;
1807
1808         switch (xgifb_info->hasVB) {
1809         case HASVB_301:
1810                 reg = xgifb_reg_get(XGIPART4, 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                                  "XGI301LV bridge detected (revision 0x%02x)\n",
1820                                  reg);
1821                 } else {
1822                         hw_info->ujVBChipID = VB_CHIP_301;
1823                         dev_info(&pdev->dev, "XGI301 bridge detected\n");
1824                 }
1825                 break;
1826         case HASVB_302:
1827                 reg = xgifb_reg_get(XGIPART4, 0x01);
1828                 if (reg >= 0xE0) {
1829                         hw_info->ujVBChipID = VB_CHIP_302LV;
1830                         dev_info(&pdev->dev,
1831                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1832                                  reg);
1833                 } else if (reg >= 0xD0) {
1834                         hw_info->ujVBChipID = VB_CHIP_301LV;
1835                         dev_info(&pdev->dev,
1836                                  "XGI302LV bridge detected (revision 0x%02x)\n",
1837                                  reg);
1838                 } else if (reg >= 0xB0) {
1839                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
1840
1841                         hw_info->ujVBChipID = VB_CHIP_302B;
1842
1843                 } else {
1844                         hw_info->ujVBChipID = VB_CHIP_302;
1845                         dev_info(&pdev->dev, "XGI302 bridge detected\n");
1846                 }
1847                 break;
1848         case HASVB_LVDS:
1849                 hw_info->ulExternalChip = 0x1;
1850                 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1851                 break;
1852         case HASVB_TRUMPION:
1853                 hw_info->ulExternalChip = 0x2;
1854                 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1855                 break;
1856         case HASVB_CHRONTEL:
1857                 hw_info->ulExternalChip = 0x4;
1858                 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1859                 break;
1860         case HASVB_LVDS_CHRONTEL:
1861                 hw_info->ulExternalChip = 0x5;
1862                 dev_info(&pdev->dev,
1863                          "LVDS transmitter and Chrontel TV encoder detected\n");
1864                 break;
1865         default:
1866                 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1867                 break;
1868         }
1869
1870         if (xgifb_info->hasVB != HASVB_NONE)
1871                 XGIfb_detect_VB(xgifb_info);
1872         else if (xgifb_info->chip != XG21)
1873                 xgifb_info->display2 = XGIFB_DISP_NONE;
1874
1875         if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1876                 if (!enable_dstn) {
1877                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1878                         reg &= 0x0f;
1879                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1880                 }
1881         }
1882
1883         xgifb_info->mode_idx = -1;
1884
1885         if (mode)
1886                 XGIfb_search_mode(xgifb_info, mode);
1887         else if (vesa != -1)
1888                 XGIfb_search_vesamode(xgifb_info, vesa);
1889
1890         if (xgifb_info->mode_idx >= 0)
1891                 xgifb_info->mode_idx =
1892                         XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1893
1894         if (xgifb_info->mode_idx < 0) {
1895                 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1896                     xgifb_info->chip == XG21)
1897                         xgifb_info->mode_idx =
1898                                 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1899                 else
1900                         xgifb_info->mode_idx = DEFAULT_MODE;
1901         }
1902
1903         if (xgifb_info->mode_idx < 0) {
1904                 dev_err(&pdev->dev, "No supported video mode found\n");
1905                 ret = -EINVAL;
1906                 goto error_1;
1907         }
1908
1909         /* set default refresh rate */
1910         xgifb_info->refresh_rate = refresh_rate;
1911         if (xgifb_info->refresh_rate == 0)
1912                 xgifb_info->refresh_rate = 60;
1913         if (XGIfb_search_refresh_rate(xgifb_info,
1914                         xgifb_info->refresh_rate) == 0) {
1915                 xgifb_info->rate_idx = 1;
1916                 xgifb_info->refresh_rate = 60;
1917         }
1918
1919         xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1920         xgifb_info->video_vwidth =
1921                 xgifb_info->video_width =
1922                         XGIbios_mode[xgifb_info->mode_idx].xres;
1923         xgifb_info->video_vheight =
1924                 xgifb_info->video_height =
1925                         XGIbios_mode[xgifb_info->mode_idx].yres;
1926         xgifb_info->org_x = xgifb_info->org_y = 0;
1927         xgifb_info->video_linelength =
1928                 xgifb_info->video_width *
1929                 (xgifb_info->video_bpp >> 3);
1930         switch (xgifb_info->video_bpp) {
1931         case 8:
1932                 xgifb_info->DstColor = 0x0000;
1933                 xgifb_info->XGI310_AccelDepth = 0x00000000;
1934                 xgifb_info->video_cmap_len = 256;
1935                 break;
1936         case 16:
1937                 xgifb_info->DstColor = 0x8000;
1938                 xgifb_info->XGI310_AccelDepth = 0x00010000;
1939                 xgifb_info->video_cmap_len = 16;
1940                 break;
1941         case 32:
1942                 xgifb_info->DstColor = 0xC000;
1943                 xgifb_info->XGI310_AccelDepth = 0x00020000;
1944                 xgifb_info->video_cmap_len = 16;
1945                 break;
1946         default:
1947                 xgifb_info->video_cmap_len = 16;
1948                 pr_info("Unsupported depth %d\n",
1949                        xgifb_info->video_bpp);
1950                 break;
1951         }
1952
1953         pr_info("Default mode is %dx%dx%d (%dHz)\n",
1954                xgifb_info->video_width,
1955                xgifb_info->video_height,
1956                xgifb_info->video_bpp,
1957                xgifb_info->refresh_rate);
1958
1959         fb_info->var.red.length         = 8;
1960         fb_info->var.green.length       = 8;
1961         fb_info->var.blue.length        = 8;
1962         fb_info->var.activate           = FB_ACTIVATE_NOW;
1963         fb_info->var.height             = -1;
1964         fb_info->var.width              = -1;
1965         fb_info->var.vmode              = FB_VMODE_NONINTERLACED;
1966         fb_info->var.xres               = xgifb_info->video_width;
1967         fb_info->var.xres_virtual       = xgifb_info->video_width;
1968         fb_info->var.yres               = xgifb_info->video_height;
1969         fb_info->var.yres_virtual       = xgifb_info->video_height;
1970         fb_info->var.bits_per_pixel     = xgifb_info->video_bpp;
1971
1972         XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1973
1974         fb_info->var.pixclock = (u32) (1000000000 /
1975                         XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
1976                                 hw_info,
1977                                 XGIbios_mode[xgifb_info->mode_idx].mode_no));
1978
1979         if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
1980                 XGIbios_mode[xgifb_info->mode_idx].mode_no,
1981                 &fb_info->var.left_margin,
1982                 &fb_info->var.right_margin,
1983                 &fb_info->var.upper_margin,
1984                 &fb_info->var.lower_margin,
1985                 &fb_info->var.hsync_len,
1986                 &fb_info->var.vsync_len,
1987                 &fb_info->var.sync,
1988                 &fb_info->var.vmode)) {
1989
1990                 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1991                     FB_VMODE_INTERLACED) {
1992                         fb_info->var.yres <<= 1;
1993                         fb_info->var.yres_virtual <<= 1;
1994                 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1995                            FB_VMODE_DOUBLE) {
1996                         fb_info->var.pixclock >>= 1;
1997                         fb_info->var.yres >>= 1;
1998                         fb_info->var.yres_virtual >>= 1;
1999                 }
2000
2001         }
2002
2003         fb_info->flags = FBINFO_FLAG_DEFAULT;
2004         fb_info->screen_base = xgifb_info->video_vbase;
2005         fb_info->fbops = &XGIfb_ops;
2006         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2007         fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2008
2009         fb_alloc_cmap(&fb_info->cmap, 256, 0);
2010
2011         xgifb_info->mtrr = arch_phys_wc_add(xgifb_info->video_base,
2012                                             xgifb_info->video_size);
2013
2014         if (register_framebuffer(fb_info) < 0) {
2015                 ret = -EINVAL;
2016                 goto error_mtrr;
2017         }
2018
2019         dumpVGAReg(xgifb_info);
2020
2021         return 0;
2022
2023 error_mtrr:
2024         arch_phys_wc_del(xgifb_info->mtrr);
2025 error_1:
2026         iounmap(xgifb_info->mmio_vbase);
2027         iounmap(xgifb_info->video_vbase);
2028         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2029 error_0:
2030         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2031 error_disable:
2032         pci_disable_device(pdev);
2033 error:
2034         framebuffer_release(fb_info);
2035         return ret;
2036 }
2037
2038 /*****************************************************/
2039 /*                PCI DEVICE HANDLING                */
2040 /*****************************************************/
2041
2042 static void xgifb_remove(struct pci_dev *pdev)
2043 {
2044         struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2045         struct fb_info *fb_info = xgifb_info->fb_info;
2046
2047         unregister_framebuffer(fb_info);
2048         arch_phys_wc_del(xgifb_info->mtrr);
2049         iounmap(xgifb_info->mmio_vbase);
2050         iounmap(xgifb_info->video_vbase);
2051         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2052         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2053         pci_disable_device(pdev);
2054         framebuffer_release(fb_info);
2055 }
2056
2057 static struct pci_driver xgifb_driver = {
2058         .name = "xgifb",
2059         .id_table = xgifb_pci_table,
2060         .probe = xgifb_probe,
2061         .remove = xgifb_remove
2062 };
2063
2064 /*****************************************************/
2065 /*                      MODULE                       */
2066 /*****************************************************/
2067
2068 module_param(mode, charp, 0);
2069 MODULE_PARM_DESC(mode,
2070         "Selects the desired default display mode in the format XxYxDepth (eg. 1024x768x16).");
2071
2072 module_param(forcecrt2type, charp, 0);
2073 MODULE_PARM_DESC(forcecrt2type,
2074         "Force the second display output type. Possible values are NONE, LCD, TV, VGA, SVIDEO or COMPOSITE.");
2075
2076 module_param(vesa, int, 0);
2077 MODULE_PARM_DESC(vesa,
2078         "Selects the desired default display mode by VESA mode number (eg. 0x117).");
2079
2080 module_param(filter, int, 0);
2081 MODULE_PARM_DESC(filter,
2082         "Selects TV flicker filter type (only for systems with a SiS301 video bridge). Possible values 0-7. Default: [no filter]).");
2083
2084 static int __init xgifb_init(void)
2085 {
2086         char *option = NULL;
2087
2088         if (forcecrt2type != NULL)
2089                 XGIfb_search_crt2type(forcecrt2type);
2090         if (fb_get_options("xgifb", &option))
2091                 return -ENODEV;
2092         XGIfb_setup(option);
2093
2094         return pci_register_driver(&xgifb_driver);
2095 }
2096
2097 static void __exit xgifb_remove_module(void)
2098 {
2099         pci_unregister_driver(&xgifb_driver);
2100         pr_debug("Module unloaded\n");
2101 }
2102
2103 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2104 MODULE_LICENSE("GPL");
2105 MODULE_AUTHOR("XGITECH , Others");
2106 module_init(xgifb_init);
2107 module_exit(xgifb_remove_module);