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 /* #include <linux/config.h> */
   8 #include <linux/module.h>
   9 #include <linux/moduleparam.h>
  10 #include <linux/kernel.h>
  11 #include <linux/spinlock.h>
  12 #include <linux/errno.h>
  13 #include <linux/string.h>
  14 #include <linux/mm.h>
  15 #include <linux/tty.h>
  16 #include <linux/slab.h>
  17 #include <linux/delay.h>
  18 #include <linux/fb.h>
  19 #include <linux/console.h>
  20 #include <linux/selection.h>
  21 #include <linux/ioport.h>
  22 #include <linux/init.h>
  23 #include <linux/pci.h>
  24 #include <linux/vmalloc.h>
  25 #include <linux/vt_kern.h>
  26 #include <linux/capability.h>
  27 #include <linux/fs.h>
  28 #include <linux/types.h>
  29 #include <linux/proc_fs.h>
  30
  31 #include <linux/io.h>
  32 #ifdef CONFIG_MTRR
  33 #include <asm/mtrr.h>
  34 #endif
  35
  36 #include "XGIfb.h"
  37 #include "vgatypes.h"
  38 #include "XGI_main.h"
  39 #include "vb_init.h"
  40 #include "vb_util.h"
  41 #include "vb_setmode.h"
  42
  43 #define Index_CR_GPIO_Reg1 0x48
  44 #define Index_CR_GPIO_Reg3 0x4a
  45
  46 #define GPIOG_EN    (1<<6)
  47 #define GPIOG_READ  (1<<1)
  48
  49 #define XGIFB_ROM_SIZE  65536
  50
  51 static char *mode;
  52 static int vesa = -1;
  53
  54 /* -------------------- Macro definitions ---------------------------- */
  55
  56 #undef XGIFBDEBUG
  57
  58 #ifdef XGIFBDEBUG
  59 #define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
  60 #else
  61 #define DPRINTK(fmt, args...)
  62 #endif
  63
  64 #ifdef XGIFBDEBUG
  65 static void dumpVGAReg(void)
  66 {
  67         u8 i, reg;
  68
  69         xgifb_reg_set(XGISR, 0x05, 0x86);
  70         /*
  71         xgifb_reg_set(XGISR, 0x08, 0x4f);
  72         xgifb_reg_set(XGISR, 0x0f, 0x20);
  73         xgifb_reg_set(XGISR, 0x11, 0x4f);
  74         xgifb_reg_set(XGISR, 0x13, 0x45);
  75         xgifb_reg_set(XGISR, 0x14, 0x51);
  76         xgifb_reg_set(XGISR, 0x1e, 0x41);
  77         xgifb_reg_set(XGISR, 0x1f, 0x0);
  78         xgifb_reg_set(XGISR, 0x20, 0xa1);
  79         xgifb_reg_set(XGISR, 0x22, 0xfb);
  80         xgifb_reg_set(XGISR, 0x26, 0x22);
  81         xgifb_reg_set(XGISR, 0x3e, 0x07);
  82         */
  83
  84         /* xgifb_reg_set(XGICR, 0x19, 0x00); */
  85         /* xgifb_reg_set(XGICR, 0x1a, 0x3C); */
  86         /* xgifb_reg_set(XGICR, 0x22, 0xff); */
  87         /* xgifb_reg_set(XGICR, 0x3D, 0x10); */
  88
  89         /* xgifb_reg_set(XGICR, 0x4a, 0xf3); */
  90
  91         /* xgifb_reg_set(XGICR, 0x57, 0x0); */
  92         /* xgifb_reg_set(XGICR, 0x7a, 0x2c); */
  93
  94         /* xgifb_reg_set(XGICR, 0x82, 0xcc); */
  95         /* xgifb_reg_set(XGICR, 0x8c, 0x0); */
  96         /*
  97         xgifb_reg_set(XGICR, 0x99, 0x1);
  98         xgifb_reg_set(XGICR, 0x41, 0x40);
  99         */
 100
 101         for (i = 0; i < 0x4f; i++) {
 102                 reg = xgifb_reg_get(XGISR, i);
 103                 printk("\no 3c4 %x", i);
 104                 printk("\ni 3c5 => %x", reg);
 105         }
 106
 107         for (i = 0; i < 0xF0; i++) {
 108                 reg = xgifb_reg_get(XGICR, i);
 109                 printk("\no 3d4 %x", i);
 110                 printk("\ni 3d5 => %x", reg);
 111         }
 112         /*
 113         xgifb_reg_set(XGIPART1,0x2F,1);
 114         for (i=1; i < 0x50; i++) {
 115                 reg = xgifb_reg_get(XGIPART1, i);
 116                 printk("\no d004 %x", i);
 117                 printk("\ni d005 => %x", reg);
 118         }
 119
 120         for (i=0; i < 0x50; i++) {
 121                  reg = xgifb_reg_get(XGIPART2, i);
 122                  printk("\no d010 %x", i);
 123                  printk("\ni d011 => %x", reg);
 124         }
 125         for (i=0; i < 0x50; i++) {
 126                 reg = xgifb_reg_get(XGIPART3, i);
 127                 printk("\no d012 %x",i);
 128                 printk("\ni d013 => %x",reg);
 129         }
 130         for (i=0; i < 0x50; i++) {
 131                 reg = xgifb_reg_get(XGIPART4, i);
 132                 printk("\no d014 %x",i);
 133                 printk("\ni d015 => %x",reg);
 134         }
 135         */
 136 }
 137 #else
 138 static inline void dumpVGAReg(void)
 139 {
 140 }
 141 #endif
 142
 143 /* data for XGI components */
 144 struct video_info xgi_video_info;
 145
 146 #if 1
 147 #define DEBUGPRN(x)
 148 #else
 149 #define DEBUGPRN(x) printk(KERN_INFO x "\n");
 150 #endif
 151
 152 /* --------------- Hardware Access Routines -------------------------- */
 153
 154 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
 155                 struct xgi_hw_device_info *HwDeviceExtension,
 156                 unsigned char modeno, unsigned char rateindex)
 157 {
 158         unsigned short ModeNo = modeno;
 159         unsigned short ModeIdIndex = 0, ClockIndex = 0;
 160         unsigned short RefreshRateTableIndex = 0;
 161
 162         /* unsigned long  temp = 0; */
 163         int Clock;
 164         XGI_Pr->ROMAddr = HwDeviceExtension->pjVirtualRomBase;
 165         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
 166
 167         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 168                         ModeIdIndex, XGI_Pr);
 169
 170         /*
 171         temp = XGI_SearchModeID(ModeNo , &ModeIdIndex,  XGI_Pr) ;
 172         if (!temp) {
 173                 printk(KERN_ERR "Could not find mode %x\n", ModeNo);
 174                 return 65000;
 175         }
 176
 177         RefreshRateTableIndex = XGI_Pr->EModeIDTable[ModeIdIndex].REFindex;
 178         RefreshRateTableIndex += (rateindex - 1);
 179
 180         */
 181         ClockIndex = XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
 182
 183         Clock = XGI_Pr->VCLKData[ClockIndex].CLOCK * 1000;
 184
 185         return Clock;
 186 }
 187
 188 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
 189                 struct xgi_hw_device_info *HwDeviceExtension,
 190                 unsigned char modeno, unsigned char rateindex,
 191                 u32 *left_margin, u32 *right_margin, u32 *upper_margin,
 192                 u32 *lower_margin, u32 *hsync_len, u32 *vsync_len, u32 *sync,
 193                 u32 *vmode)
 194 {
 195         unsigned short ModeNo = modeno;
 196         unsigned short ModeIdIndex = 0, index = 0;
 197         unsigned short RefreshRateTableIndex = 0;
 198
 199         unsigned short VRE, VBE, VRS, VBS, VDE, VT;
 200         unsigned short HRE, HBE, HRS, HBS, HDE, HT;
 201         unsigned char sr_data, cr_data, cr_data2;
 202         unsigned long cr_data3;
 203         int A, B, C, D, E, F, temp, j;
 204         XGI_Pr->ROMAddr = HwDeviceExtension->pjVirtualRomBase;
 205         InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
 206         RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 207                         ModeIdIndex, XGI_Pr);
 208         /*
 209         temp = XGI_SearchModeID(ModeNo, &ModeIdIndex, XGI_Pr);
 210         if (!temp)
 211                 return 0;
 212
 213         RefreshRateTableIndex = XGI_Pr->EModeIDTable[ModeIdIndex].REFindex;
 214         RefreshRateTableIndex += (rateindex - 1);
 215         */
 216         index = XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
 217
 218         sr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[5];
 219
 220         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[0];
 221
 222         /* Horizontal total */
 223         HT = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x03) << 8);
 224         A = HT + 5;
 225
 226         /*
 227         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[1];
 228
 229         Horizontal display enable end
 230         HDE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x0C) << 6);
 231         */
 232         HDE = (XGI_Pr->RefIndex[RefreshRateTableIndex].XRes >> 3) - 1;
 233         E = HDE + 1;
 234
 235         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[3];
 236
 237         /* Horizontal retrace (=sync) start */
 238         HRS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0xC0) << 2);
 239         F = HRS - E - 3;
 240
 241         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[1];
 242
 243         /* Horizontal blank start */
 244         HBS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x30) << 4);
 245
 246         sr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[6];
 247
 248         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[2];
 249
 250         cr_data2 = XGI_Pr->XGINEWUB_CRT1Table[index].CR[4];
 251
 252         /* Horizontal blank end */
 253         HBE = (cr_data & 0x1f) | ((unsigned short) (cr_data2 & 0x80) >> 2)
 254                         | ((unsigned short) (sr_data & 0x03) << 6);
 255
 256         /* Horizontal retrace (=sync) end */
 257         HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
 258
 259         temp = HBE - ((E - 1) & 255);
 260         B = (temp > 0) ? temp : (temp + 256);
 261
 262         temp = HRE - ((E + F + 3) & 63);
 263         C = (temp > 0) ? temp : (temp + 64);
 264
 265         D = B - F - C;
 266
 267         *left_margin = D * 8;
 268         *right_margin = F * 8;
 269         *hsync_len = C * 8;
 270
 271         sr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[14];
 272
 273         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[8];
 274
 275         cr_data2 = XGI_Pr->XGINEWUB_CRT1Table[index].CR[9];
 276
 277         /* Vertical total */
 278         VT = (cr_data & 0xFF) | ((unsigned short) (cr_data2 & 0x01) << 8)
 279                         | ((unsigned short) (cr_data2 & 0x20) << 4)
 280                         | ((unsigned short) (sr_data & 0x01) << 10);
 281         A = VT + 2;
 282
 283         /* cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[10]; */
 284
 285         /* Vertical display enable end */
 286         /*
 287         VDE = (cr_data & 0xff) |
 288                 ((unsigned short) (cr_data2 & 0x02) << 7) |
 289                 ((unsigned short) (cr_data2 & 0x40) << 3) |
 290                 ((unsigned short) (sr_data & 0x02) << 9);
 291         */
 292         VDE = XGI_Pr->RefIndex[RefreshRateTableIndex].YRes - 1;
 293         E = VDE + 1;
 294
 295         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[10];
 296
 297         /* Vertical retrace (=sync) start */
 298         VRS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x04) << 6)
 299                         | ((unsigned short) (cr_data2 & 0x80) << 2)
 300                         | ((unsigned short) (sr_data & 0x08) << 7);
 301         F = VRS + 1 - E;
 302
 303         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[12];
 304
 305         cr_data3 = (XGI_Pr->XGINEWUB_CRT1Table[index].CR[14] & 0x80) << 5;
 306
 307         /* Vertical blank start */
 308         VBS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x08) << 5)
 309                         | ((unsigned short) (cr_data3 & 0x20) << 4)
 310                         | ((unsigned short) (sr_data & 0x04) << 8);
 311
 312         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[13];
 313
 314         /* Vertical blank end */
 315         VBE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x10) << 4);
 316         temp = VBE - ((E - 1) & 511);
 317         B = (temp > 0) ? temp : (temp + 512);
 318
 319         cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[11];
 320
 321         /* Vertical retrace (=sync) end */
 322         VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
 323         temp = VRE - ((E + F - 1) & 31);
 324         C = (temp > 0) ? temp : (temp + 32);
 325
 326         D = B - F - C;
 327
 328         *upper_margin = D;
 329         *lower_margin = F;
 330         *vsync_len = C;
 331
 332         if (XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
 333                 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
 334         else
 335                 *sync |= FB_SYNC_VERT_HIGH_ACT;
 336
 337         if (XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
 338                 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
 339         else
 340                 *sync |= FB_SYNC_HOR_HIGH_ACT;
 341
 342         *vmode = FB_VMODE_NONINTERLACED;
 343         if (XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080)
 344                 *vmode = FB_VMODE_INTERLACED;
 345         else {
 346                 j = 0;
 347                 while (XGI_Pr->EModeIDTable[j].Ext_ModeID != 0xff) {
 348                         if (XGI_Pr->EModeIDTable[j].Ext_ModeID ==
 349                             XGI_Pr->RefIndex[RefreshRateTableIndex].ModeID) {
 350                                 if (XGI_Pr->EModeIDTable[j].Ext_ModeFlag &
 351                                     DoubleScanMode) {
 352                                         *vmode = FB_VMODE_DOUBLE;
 353                                 }
 354                                 break;
 355                         }
 356                         j++;
 357                 }
 358         }
 359
 360         return 1;
 361 }
 362
 363 static void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 364 {
 365         XGI_Pr->RelIO = BaseAddr;
 366         XGI_Pr->P3c4 = BaseAddr + 0x14;
 367         XGI_Pr->P3d4 = BaseAddr + 0x24;
 368         XGI_Pr->P3c0 = BaseAddr + 0x10;
 369         XGI_Pr->P3ce = BaseAddr + 0x1e;
 370         XGI_Pr->P3c2 = BaseAddr + 0x12;
 371         XGI_Pr->P3ca = BaseAddr + 0x1a;
 372         XGI_Pr->P3c6 = BaseAddr + 0x16;
 373         XGI_Pr->P3c7 = BaseAddr + 0x17;
 374         XGI_Pr->P3c8 = BaseAddr + 0x18;
 375         XGI_Pr->P3c9 = BaseAddr + 0x19;
 376         XGI_Pr->P3da = BaseAddr + 0x2A;
 377         /* Digital video interface registers (LCD) */
 378         XGI_Pr->Part1Port = BaseAddr + XGI_CRT2_PORT_04;
 379         /* 301 TV Encoder registers */
 380         XGI_Pr->Part2Port = BaseAddr + XGI_CRT2_PORT_10;
 381         /* 301 Macrovision registers */
 382         XGI_Pr->Part3Port = BaseAddr + XGI_CRT2_PORT_12;
 383         /* 301 VGA2 (and LCD) registers */
 384         XGI_Pr->Part4Port = BaseAddr + XGI_CRT2_PORT_14;
 385         /* 301 palette address port registers */
 386         XGI_Pr->Part5Port = BaseAddr + XGI_CRT2_PORT_14 + 2;
 387
 388 }
 389
 390 /* ------------ Interface for init & mode switching code ------------- */
 391
 392 static unsigned char XGIfb_query_VGA_config_space(
 393                 struct xgi_hw_device_info *pXGIhw_ext, unsigned long offset,
 394                 unsigned long set, unsigned long *value)
 395 {
 396         static struct pci_dev *pdev;
 397         static unsigned char init, valid_pdev;
 398
 399         if (!set)
 400                 DPRINTK("XGIfb: Get VGA offset 0x%lx\n", offset);
 401         else
 402                 DPRINTK("XGIfb: Set offset 0x%lx to 0x%lx\n", offset, *value);
 403
 404         if (!init) {
 405                 init = 1;
 406                 pdev = pci_get_device(PCI_VENDOR_ID_XG, xgi_video_info.chip_id,
 407                                 pdev);
 408                 if (pdev) {
 409                         valid_pdev = 1;
 410                         pci_dev_put(pdev);
 411                 }
 412         }
 413
 414         if (!valid_pdev) {
 415                 printk(KERN_DEBUG "XGIfb: Can't find XGI %d VGA device.\n",
 416                                 xgi_video_info.chip_id);
 417                 return 0;
 418         }
 419
 420         if (set == 0)
 421                 pci_read_config_dword(pdev, offset, (u32 *) value);
 422         else
 423                 pci_write_config_dword(pdev, offset, (u32)(*value));
 424
 425         return 1;
 426 }
 427
 428 /* ------------------ Internal helper routines ----------------- */
 429
 430 static int XGIfb_GetXG21DefaultLVDSModeIdx(void)
 431 {
 432
 433         int found_mode = 0;
 434         int XGIfb_mode_idx = 0;
 435
 436         found_mode = 0;
 437         while ((XGIbios_mode[XGIfb_mode_idx].mode_no != 0)
 438                         && (XGIbios_mode[XGIfb_mode_idx].xres
 439                                         <= XGI21_LCDCapList[0].LVDSHDE)) {
 440                 if ((XGIbios_mode[XGIfb_mode_idx].xres
 441                                 == XGI21_LCDCapList[0].LVDSHDE)
 442                                 && (XGIbios_mode[XGIfb_mode_idx].yres
 443                                                 == XGI21_LCDCapList[0].LVDSVDE)
 444                                 && (XGIbios_mode[XGIfb_mode_idx].bpp == 8)) {
 445                         XGIfb_mode_no = XGIbios_mode[XGIfb_mode_idx].mode_no;
 446                         found_mode = 1;
 447                         break;
 448                 }
 449                 XGIfb_mode_idx++;
 450         }
 451         if (!found_mode)
 452                 XGIfb_mode_idx = -1;
 453
 454         return XGIfb_mode_idx;
 455 }
 456
 457 static void XGIfb_search_mode(const char *name)
 458 {
 459         int i = 0, j = 0, l;
 460
 461         while (XGIbios_mode[i].mode_no != 0) {
 462                 l = min(strlen(name), strlen(XGIbios_mode[i].name));
 463                 if (!strncmp(name, XGIbios_mode[i].name, l)) {
 464                         xgifb_mode_idx = i;
 465                         j = 1;
 466                         break;
 467                 }
 468                 i++;
 469         }
 470         if (!j)
 471                 printk(KERN_INFO "XGIfb: Invalid mode '%s'\n", name);
 472 }
 473
 474 static void XGIfb_search_vesamode(unsigned int vesamode)
 475 {
 476         int i = 0, j = 0;
 477
 478         if (vesamode == 0)
 479                 goto invalid;
 480
 481         vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
 482
 483         while (XGIbios_mode[i].mode_no != 0) {
 484                 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
 485                     (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
 486                         xgifb_mode_idx = i;
 487                         j = 1;
 488                         break;
 489                 }
 490                 i++;
 491         }
 492
 493 invalid:
 494         if (!j)
 495                 printk(KERN_INFO "XGIfb: Invalid VESA mode 0x%x'\n", vesamode);
 496 }
 497
 498 static int XGIfb_GetXG21LVDSData(void)
 499 {
 500         u8 tmp;
 501         void __iomem *data = xgi_video_info.mmio_vbase + 0x20000;
 502         int i, j, k;
 503
 504         tmp = xgifb_reg_get(XGISR, 0x1e);
 505         xgifb_reg_set(XGISR, 0x1e, tmp | 4);
 506
 507         if ((readb(data) == 0x55) &&
 508             (readb(data + 1) == 0xAA) &&
 509             (readb(data + 0x65) & 0x1)) {
 510                 i = readw(data + 0x316);
 511                 j = readb(data + i - 1);
 512                 if (j == 0xff)
 513                         j = 1;
 514
 515                 k = 0;
 516                 do {
 517                         XGI21_LCDCapList[k].LVDS_Capability = readw(data + i);
 518                         XGI21_LCDCapList[k].LVDSHT = readw(data + i + 2);
 519                         XGI21_LCDCapList[k].LVDSVT = readw(data + i + 4);
 520                         XGI21_LCDCapList[k].LVDSHDE = readw(data + i + 6);
 521                         XGI21_LCDCapList[k].LVDSVDE = readw(data + i + 8);
 522                         XGI21_LCDCapList[k].LVDSHFP = readw(data + i + 10);
 523                         XGI21_LCDCapList[k].LVDSVFP = readw(data + i + 12);
 524                         XGI21_LCDCapList[k].LVDSHSYNC = readw(data + i + 14);
 525                         XGI21_LCDCapList[k].LVDSVSYNC = readw(data + i + 16);
 526                         XGI21_LCDCapList[k].VCLKData1 = readb(data + i + 18);
 527                         XGI21_LCDCapList[k].VCLKData2 = readb(data + i + 19);
 528                         XGI21_LCDCapList[k].PSC_S1 = readb(data + i + 20);
 529                         XGI21_LCDCapList[k].PSC_S2 = readb(data + i + 21);
 530                         XGI21_LCDCapList[k].PSC_S3 = readb(data + i + 22);
 531                         XGI21_LCDCapList[k].PSC_S4 = readb(data + i + 23);
 532                         XGI21_LCDCapList[k].PSC_S5 = readb(data + i + 24);
 533                         i += 25;
 534                         j--;
 535                         k++;
 536                 } while ((j > 0) && (k < (sizeof(XGI21_LCDCapList)
 537                                 / sizeof(struct XGI21_LVDSCapStruct))));
 538                 return 1;
 539         }
 540         return 0;
 541 }
 542
 543 static int XGIfb_validate_mode(int myindex)
 544 {
 545         u16 xres, yres;
 546         struct xgi_hw_device_info *hw_info = &xgi_video_info.hw_info;
 547
 548         if (xgi_video_info.chip == XG21) {
 549                 if ((xgi_video_info.disp_state & DISPTYPE_DISP2)
 550                                 == DISPTYPE_LCD) {
 551                         xres = XGI21_LCDCapList[0].LVDSHDE;
 552                         yres = XGI21_LCDCapList[0].LVDSVDE;
 553                         if (XGIbios_mode[myindex].xres > xres)
 554                                 return -1;
 555                         if (XGIbios_mode[myindex].yres > yres)
 556                                 return -1;
 557                         if ((XGIbios_mode[myindex].xres < xres) &&
 558                             (XGIbios_mode[myindex].yres < yres)) {
 559                                 if (XGIbios_mode[myindex].bpp > 8)
 560                                         return -1;
 561                         }
 562
 563                 }
 564                 return myindex;
 565
 566         }
 567
 568         /* FIXME: for now, all is valid on XG27 */
 569         if (xgi_video_info.chip == XG27)
 570                 return myindex;
 571
 572         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 573                 return -1;
 574
 575         switch (xgi_video_info.disp_state & DISPTYPE_DISP2) {
 576         case DISPTYPE_LCD:
 577                 switch (hw_info->ulCRT2LCDType) {
 578                 case LCD_640x480:
 579                         xres = 640;
 580                         yres = 480;
 581                         break;
 582                 case LCD_800x600:
 583                         xres = 800;
 584                         yres = 600;
 585                         break;
 586                 case LCD_1024x600:
 587                         xres = 1024;
 588                         yres = 600;
 589                         break;
 590                 case LCD_1024x768:
 591                         xres = 1024;
 592                         yres = 768;
 593                         break;
 594                 case LCD_1152x768:
 595                         xres = 1152;
 596                         yres = 768;
 597                         break;
 598                 case LCD_1280x960:
 599                         xres = 1280;
 600                         yres = 960;
 601                         break;
 602                 case LCD_1280x768:
 603                         xres = 1280;
 604                         yres = 768;
 605                         break;
 606                 case LCD_1280x1024:
 607                         xres = 1280;
 608                         yres = 1024;
 609                         break;
 610                 case LCD_1400x1050:
 611                         xres = 1400;
 612                         yres = 1050;
 613                         break;
 614                 case LCD_1600x1200:
 615                         xres = 1600;
 616                         yres = 1200;
 617                         break;
 618                 /* case LCD_320x480: */ /* TW: FSTN */
 619                         /*
 620                         xres =  320;
 621                         yres =  480;
 622                         break;
 623                         */
 624                 default:
 625                         xres = 0;
 626                         yres = 0;
 627                         break;
 628                 }
 629                 if (XGIbios_mode[myindex].xres > xres)
 630                         return -1;
 631                 if (XGIbios_mode[myindex].yres > yres)
 632                         return -1;
 633                 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
 634                     (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 635                         switch (XGIbios_mode[myindex].xres) {
 636                         case 512:
 637                                 if (XGIbios_mode[myindex].yres != 512)
 638                                         return -1;
 639                                 if (hw_info->ulCRT2LCDType == LCD_1024x600)
 640                                         return -1;
 641                                 break;
 642                         case 640:
 643                                 if ((XGIbios_mode[myindex].yres != 400)
 644                                                 && (XGIbios_mode[myindex].yres
 645                                                                 != 480))
 646                                         return -1;
 647                                 break;
 648                         case 800:
 649                                 if (XGIbios_mode[myindex].yres != 600)
 650                                         return -1;
 651                                 break;
 652                         case 1024:
 653                                 if ((XGIbios_mode[myindex].yres != 600) &&
 654                                     (XGIbios_mode[myindex].yres != 768))
 655                                         return -1;
 656                                 if ((XGIbios_mode[myindex].yres == 600) &&
 657                                     (hw_info->ulCRT2LCDType != LCD_1024x600))
 658                                         return -1;
 659                                 break;
 660                         case 1152:
 661                                 if ((XGIbios_mode[myindex].yres) != 768)
 662                                         return -1;
 663                                 if (hw_info->ulCRT2LCDType != LCD_1152x768)
 664                                         return -1;
 665                                 break;
 666                         case 1280:
 667                                 if ((XGIbios_mode[myindex].yres != 768) &&
 668                                     (XGIbios_mode[myindex].yres != 1024))
 669                                         return -1;
 670                                 if ((XGIbios_mode[myindex].yres == 768) &&
 671                                     (hw_info->ulCRT2LCDType != LCD_1280x768))
 672                                         return -1;
 673                                 break;
 674                         case 1400:
 675                                 if (XGIbios_mode[myindex].yres != 1050)
 676                                         return -1;
 677                                 break;
 678                         case 1600:
 679                                 if (XGIbios_mode[myindex].yres != 1200)
 680                                         return -1;
 681                                 break;
 682                         default:
 683                                 return -1;
 684                         }
 685                 } else {
 686                         switch (XGIbios_mode[myindex].xres) {
 687                         case 512:
 688                                 if (XGIbios_mode[myindex].yres != 512)
 689                                         return -1;
 690                                 break;
 691                         case 640:
 692                                 if ((XGIbios_mode[myindex].yres != 400) &&
 693                                     (XGIbios_mode[myindex].yres != 480))
 694                                         return -1;
 695                                 break;
 696                         case 800:
 697                                 if (XGIbios_mode[myindex].yres != 600)
 698                                         return -1;
 699                                 break;
 700                         case 1024:
 701                                 if (XGIbios_mode[myindex].yres != 768)
 702                                         return -1;
 703                                 break;
 704                         case 1280:
 705                                 if ((XGIbios_mode[myindex].yres != 960) &&
 706                                     (XGIbios_mode[myindex].yres != 1024))
 707                                         return -1;
 708                                 if (XGIbios_mode[myindex].yres == 960) {
 709                                         if (hw_info->ulCRT2LCDType ==
 710                                             LCD_1400x1050)
 711                                                 return -1;
 712                                 }
 713                                 break;
 714                         case 1400:
 715                                 if (XGIbios_mode[myindex].yres != 1050)
 716                                         return -1;
 717                                 break;
 718                         case 1600:
 719                                 if (XGIbios_mode[myindex].yres != 1200)
 720                                         return -1;
 721                                 break;
 722                         default:
 723                                 return -1;
 724                         }
 725                 }
 726                 break;
 727         case DISPTYPE_TV:
 728                 switch (XGIbios_mode[myindex].xres) {
 729                 case 512:
 730                 case 640:
 731                 case 800:
 732                         break;
 733                 case 720:
 734                         if (xgi_video_info.TV_type == TVMODE_NTSC) {
 735                                 if (XGIbios_mode[myindex].yres != 480)
 736                                         return -1;
 737                         } else if (xgi_video_info.TV_type == TVMODE_PAL) {
 738                                 if (XGIbios_mode[myindex].yres != 576)
 739                                         return -1;
 740                         }
 741                         /*  TW: LVDS/CHRONTEL does not support 720 */
 742                         if (xgi_video_info.hasVB == HASVB_LVDS_CHRONTEL ||
 743                             xgi_video_info.hasVB == HASVB_CHRONTEL) {
 744                                 return -1;
 745                         }
 746                         break;
 747                 case 1024:
 748                         if (xgi_video_info.TV_type == TVMODE_NTSC) {
 749                                 if (XGIbios_mode[myindex].bpp == 32)
 750                                         return -1;
 751                         }
 752                         break;
 753                 default:
 754                         return -1;
 755                 }
 756                 break;
 757         case DISPTYPE_CRT2:
 758                 if (XGIbios_mode[myindex].xres > 1280)
 759                         return -1;
 760                 break;
 761         }
 762         return myindex;
 763
 764 }
 765
 766 static void XGIfb_search_crt2type(const char *name)
 767 {
 768         int i = 0;
 769
 770         if (name == NULL)
 771                 return;
 772
 773         while (XGI_crt2type[i].type_no != -1) {
 774                 if (!strcmp(name, XGI_crt2type[i].name)) {
 775                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 776                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 777                         break;
 778                 }
 779                 i++;
 780         }
 781         if (XGIfb_crt2type < 0)
 782                 printk(KERN_INFO "XGIfb: Invalid CRT2 type: %s\n", name);
 783 }
 784
 785 static u8 XGIfb_search_refresh_rate(unsigned int rate)
 786 {
 787         u16 xres, yres;
 788         int i = 0;
 789
 790         xres = XGIbios_mode[xgifb_mode_idx].xres;
 791         yres = XGIbios_mode[xgifb_mode_idx].yres;
 792
 793         XGIfb_rate_idx = 0;
 794         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 795                 if ((XGIfb_vrate[i].xres == xres) &&
 796                     (XGIfb_vrate[i].yres == yres)) {
 797                         if (XGIfb_vrate[i].refresh == rate) {
 798                                 XGIfb_rate_idx = XGIfb_vrate[i].idx;
 799                                 break;
 800                         } else if (XGIfb_vrate[i].refresh > rate) {
 801                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 802                                         DPRINTK("XGIfb: Adjusting rate from %d up to %d\n",
 803                                                 rate, XGIfb_vrate[i].refresh);
 804                                         XGIfb_rate_idx = XGIfb_vrate[i].idx;
 805                                         xgi_video_info.refresh_rate =
 806                                                 XGIfb_vrate[i].refresh;
 807                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 808                                                 <= 2) && (XGIfb_vrate[i].idx
 809                                                 != 1)) {
 810                                         DPRINTK("XGIfb: Adjusting rate from %d down to %d\n",
 811                                                 rate, XGIfb_vrate[i-1].refresh);
 812                                         XGIfb_rate_idx = XGIfb_vrate[i - 1].idx;
 813                                         xgi_video_info.refresh_rate =
 814                                                 XGIfb_vrate[i - 1].refresh;
 815                                 }
 816                                 break;
 817                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 818                                 DPRINTK("XGIfb: Adjusting rate from %d down to %d\n",
 819                                         rate, XGIfb_vrate[i].refresh);
 820                                 XGIfb_rate_idx = XGIfb_vrate[i].idx;
 821                                 break;
 822                         }
 823                 }
 824                 i++;
 825         }
 826         if (XGIfb_rate_idx > 0) {
 827                 return XGIfb_rate_idx;
 828         } else {
 829                 printk(KERN_INFO "XGIfb: Unsupported rate %d for %dx%d\n",
 830                        rate, xres, yres);
 831                 return 0;
 832         }
 833 }
 834
 835 static void XGIfb_search_tvstd(const char *name)
 836 {
 837         int i = 0;
 838
 839         if (name == NULL)
 840                 return;
 841
 842         while (XGI_tvtype[i].type_no != -1) {
 843                 if (!strcmp(name, XGI_tvtype[i].name)) {
 844                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 845                         break;
 846                 }
 847                 i++;
 848         }
 849 }
 850
 851 /* ----------- FBDev related routines for all series ----------- */
 852
 853 static void XGIfb_bpp_to_var(struct fb_var_screeninfo *var)
 854 {
 855         switch (var->bits_per_pixel) {
 856         case 8:
 857                 var->red.offset = var->green.offset = var->blue.offset = 0;
 858                 var->red.length = var->green.length = var->blue.length = 6;
 859                 xgi_video_info.video_cmap_len = 256;
 860                 break;
 861         case 16:
 862                 var->red.offset = 11;
 863                 var->red.length = 5;
 864                 var->green.offset = 5;
 865                 var->green.length = 6;
 866                 var->blue.offset = 0;
 867                 var->blue.length = 5;
 868                 var->transp.offset = 0;
 869                 var->transp.length = 0;
 870                 xgi_video_info.video_cmap_len = 16;
 871                 break;
 872         case 32:
 873                 var->red.offset = 16;
 874                 var->red.length = 8;
 875                 var->green.offset = 8;
 876                 var->green.length = 8;
 877                 var->blue.offset = 0;
 878                 var->blue.length = 8;
 879                 var->transp.offset = 24;
 880                 var->transp.length = 8;
 881                 xgi_video_info.video_cmap_len = 16;
 882                 break;
 883         }
 884 }
 885
 886 /* --------------------- SetMode routines ------------------------- */
 887
 888 static void XGIfb_pre_setmode(void)
 889 {
 890         u8 cr30 = 0, cr31 = 0;
 891
 892         cr31 = xgifb_reg_get(XGICR, 0x31);
 893         cr31 &= ~0x60;
 894
 895         switch (xgi_video_info.disp_state & DISPTYPE_DISP2) {
 896         case DISPTYPE_CRT2:
 897                 cr30 = (XGI_VB_OUTPUT_CRT2 | XGI_SIMULTANEOUS_VIEW_ENABLE);
 898                 cr31 |= XGI_DRIVER_MODE;
 899                 break;
 900         case DISPTYPE_LCD:
 901                 cr30 = (XGI_VB_OUTPUT_LCD | XGI_SIMULTANEOUS_VIEW_ENABLE);
 902                 cr31 |= XGI_DRIVER_MODE;
 903                 break;
 904         case DISPTYPE_TV:
 905                 if (xgi_video_info.TV_type == TVMODE_HIVISION)
 906                         cr30 = (XGI_VB_OUTPUT_HIVISION
 907                                         | XGI_SIMULTANEOUS_VIEW_ENABLE);
 908                 else if (xgi_video_info.TV_plug == TVPLUG_SVIDEO)
 909                         cr30 = (XGI_VB_OUTPUT_SVIDEO
 910                                         | XGI_SIMULTANEOUS_VIEW_ENABLE);
 911                 else if (xgi_video_info.TV_plug == TVPLUG_COMPOSITE)
 912                         cr30 = (XGI_VB_OUTPUT_COMPOSITE
 913                                         | XGI_SIMULTANEOUS_VIEW_ENABLE);
 914                 else if (xgi_video_info.TV_plug == TVPLUG_SCART)
 915                         cr30 = (XGI_VB_OUTPUT_SCART
 916                                         | XGI_SIMULTANEOUS_VIEW_ENABLE);
 917                 cr31 |= XGI_DRIVER_MODE;
 918
 919                 if (XGIfb_tvmode == 1 || xgi_video_info.TV_type == TVMODE_PAL)
 920                         cr31 |= 0x01;
 921                 else
 922                         cr31 &= ~0x01;
 923                 break;
 924         default: /* disable CRT2 */
 925                 cr30 = 0x00;
 926                 cr31 |= (XGI_DRIVER_MODE | XGI_VB_OUTPUT_DISABLE);
 927         }
 928
 929         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 930         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 931         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33, (XGIfb_rate_idx & 0x0F));
 932 }
 933
 934 static void XGIfb_post_setmode(void)
 935 {
 936         u8 reg;
 937         unsigned char doit = 1;
 938         /*
 939         xgifb_reg_set(XGISR,IND_XGI_PASSWORD,XGI_PASSWORD);
 940         xgifb_reg_set(XGICR, 0x13, 0x00);
 941         xgifb_reg_and_or(XGISR,0x0E, 0xF0, 0x01);
 942         *test*
 943         */
 944         if (xgi_video_info.video_bpp == 8) {
 945                 /* TW: We can't switch off CRT1 on LVDS/Chrontel
 946                  * in 8bpp Modes */
 947                 if ((xgi_video_info.hasVB == HASVB_LVDS) ||
 948                     (xgi_video_info.hasVB == HASVB_LVDS_CHRONTEL)) {
 949                         doit = 0;
 950                 }
 951                 /* TW: We can't switch off CRT1 on 301B-DH
 952                  * in 8bpp Modes if using LCD */
 953                 if (xgi_video_info.disp_state & DISPTYPE_LCD)
 954                         doit = 0;
 955         }
 956
 957         /* TW: We can't switch off CRT1 if bridge is in slave mode */
 958         if (xgi_video_info.hasVB != HASVB_NONE) {
 959                 reg = xgifb_reg_get(XGIPART1, 0x00);
 960
 961                 if ((reg & 0x50) == 0x10)
 962                         doit = 0;
 963
 964         } else {
 965                 XGIfb_crt1off = 0;
 966         }
 967
 968         reg = xgifb_reg_get(XGICR, 0x17);
 969         if ((XGIfb_crt1off) && (doit))
 970                 reg &= ~0x80;
 971         else
 972                 reg |= 0x80;
 973         xgifb_reg_set(XGICR, 0x17, reg);
 974
 975         xgifb_reg_and(XGISR, IND_XGI_RAMDAC_CONTROL, ~0x04);
 976
 977         if ((xgi_video_info.disp_state & DISPTYPE_TV) && (xgi_video_info.hasVB
 978                         == HASVB_301)) {
 979
 980                 reg = xgifb_reg_get(XGIPART4, 0x01);
 981
 982                 if (reg < 0xB0) { /* Set filter for XGI301 */
 983                         switch (xgi_video_info.video_width) {
 984                         case 320:
 985                                 filter_tb = (xgi_video_info.TV_type ==
 986                                              TVMODE_NTSC) ? 4 : 12;
 987                                 break;
 988                         case 640:
 989                                 filter_tb = (xgi_video_info.TV_type ==
 990                                              TVMODE_NTSC) ? 5 : 13;
 991                                 break;
 992                         case 720:
 993                                 filter_tb = (xgi_video_info.TV_type ==
 994                                              TVMODE_NTSC) ? 6 : 14;
 995                                 break;
 996                         case 800:
 997                                 filter_tb = (xgi_video_info.TV_type ==
 998                                              TVMODE_NTSC) ? 7 : 15;
 999                                 break;
1000                         default:
1001                                 filter = -1;
1002                                 break;
1003                         }
1004                         xgifb_reg_or(XGIPART1, XGIfb_CRT2_write_enable, 0x01);
1005
1006                         if (xgi_video_info.TV_type == TVMODE_NTSC) {
1007
1008                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
1009
1010                                 if (xgi_video_info.TV_plug == TVPLUG_SVIDEO) {
1011
1012                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
1013
1014                                 } else if (xgi_video_info.TV_plug
1015                                                 == TVPLUG_COMPOSITE) {
1016
1017                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
1018
1019                                         switch (xgi_video_info.video_width) {
1020                                         case 640:
1021                                                 xgifb_reg_set(XGIPART2,
1022                                                               0x35,
1023                                                               0xEB);
1024                                                 xgifb_reg_set(XGIPART2,
1025                                                               0x36,
1026                                                               0x04);
1027                                                 xgifb_reg_set(XGIPART2,
1028                                                               0x37,
1029                                                               0x25);
1030                                                 xgifb_reg_set(XGIPART2,
1031                                                               0x38,
1032                                                               0x18);
1033                                                 break;
1034                                         case 720:
1035                                                 xgifb_reg_set(XGIPART2,
1036                                                               0x35,
1037                                                               0xEE);
1038                                                 xgifb_reg_set(XGIPART2,
1039                                                               0x36,
1040                                                               0x0C);
1041                                                 xgifb_reg_set(XGIPART2,
1042                                                               0x37,
1043                                                               0x22);
1044                                                 xgifb_reg_set(XGIPART2,
1045                                                               0x38,
1046                                                               0x08);
1047                                                 break;
1048                                         case 800:
1049                                                 xgifb_reg_set(XGIPART2,
1050                                                               0x35,
1051                                                               0xEB);
1052                                                 xgifb_reg_set(XGIPART2,
1053                                                               0x36,
1054                                                               0x15);
1055                                                 xgifb_reg_set(XGIPART2,
1056                                                               0x37,
1057                                                               0x25);
1058                                                 xgifb_reg_set(XGIPART2,
1059                                                               0x38,
1060                                                               0xF6);
1061                                                 break;
1062                                         }
1063                                 }
1064
1065                         } else if (xgi_video_info.TV_type == TVMODE_PAL) {
1066
1067                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
1068
1069                                 if (xgi_video_info.TV_plug == TVPLUG_SVIDEO) {
1070
1071                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
1072
1073                                 } else if (xgi_video_info.TV_plug
1074                                                 == TVPLUG_COMPOSITE) {
1075
1076                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
1077
1078                                         switch (xgi_video_info.video_width) {
1079                                         case 640:
1080                                                 xgifb_reg_set(XGIPART2,
1081                                                               0x35,
1082                                                               0xF1);
1083                                                 xgifb_reg_set(XGIPART2,
1084                                                               0x36,
1085                                                               0xF7);
1086                                                 xgifb_reg_set(XGIPART2,
1087                                                               0x37,
1088                                                               0x1F);
1089                                                 xgifb_reg_set(XGIPART2,
1090                                                               0x38,
1091                                                               0x32);
1092                                                 break;
1093                                         case 720:
1094                                                 xgifb_reg_set(XGIPART2,
1095                                                               0x35,
1096                                                               0xF3);
1097                                                 xgifb_reg_set(XGIPART2,
1098                                                               0x36,
1099                                                               0x00);
1100                                                 xgifb_reg_set(XGIPART2,
1101                                                               0x37,
1102                                                               0x1D);
1103                                                 xgifb_reg_set(XGIPART2,
1104                                                               0x38,
1105                                                               0x20);
1106                                                 break;
1107                                         case 800:
1108                                                 xgifb_reg_set(XGIPART2,
1109                                                               0x35,
1110                                                               0xFC);
1111                                                 xgifb_reg_set(XGIPART2,
1112                                                               0x36,
1113                                                               0xFB);
1114                                                 xgifb_reg_set(XGIPART2,
1115                                                               0x37,
1116                                                               0x14);
1117                                                 xgifb_reg_set(XGIPART2,
1118                                                               0x38,
1119                                                               0x2A);
1120                                                 break;
1121                                         }
1122                                 }
1123                         }
1124
1125                         if ((filter >= 0) && (filter <= 7)) {
1126                                 DPRINTK("FilterTable[%d]-%d: %02x %02x %02x %02x\n",
1127                                         filter_tb, filter,
1128                                         XGI_TV_filter[filter_tb].
1129                                                 filter[filter][0],
1130                                         XGI_TV_filter[filter_tb].
1131                                                 filter[filter][1],
1132                                         XGI_TV_filter[filter_tb].
1133                                                 filter[filter][2],
1134                                         XGI_TV_filter[filter_tb].
1135                                                 filter[filter][3]
1136                                 );
1137                                 xgifb_reg_set(
1138                                         XGIPART2,
1139                                         0x35,
1140                                         (XGI_TV_filter[filter_tb].
1141                                                 filter[filter][0]));
1142                                 xgifb_reg_set(
1143                                         XGIPART2,
1144                                         0x36,
1145                                         (XGI_TV_filter[filter_tb].
1146                                                 filter[filter][1]));
1147                                 xgifb_reg_set(
1148                                         XGIPART2,
1149                                         0x37,
1150                                         (XGI_TV_filter[filter_tb].
1151                                                 filter[filter][2]));
1152                                 xgifb_reg_set(
1153                                         XGIPART2,
1154                                         0x38,
1155                                         (XGI_TV_filter[filter_tb].
1156                                                 filter[filter][3]));
1157                         }
1158                 }
1159         }
1160 }
1161
1162 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
1163                 struct fb_info *info)
1164 {
1165         struct xgi_hw_device_info *hw_info = &xgi_video_info.hw_info;
1166         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1167                         + var->hsync_len;
1168         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
1169                         + var->vsync_len;
1170 #if defined(__powerpc__)
1171         u8 sr_data, cr_data;
1172 #endif
1173         unsigned int drate = 0, hrate = 0;
1174         int found_mode = 0;
1175         int old_mode;
1176         /* unsigned char reg, reg1; */
1177
1178         DEBUGPRN("Inside do_set_var");
1179         /* printk(KERN_DEBUG "XGIfb:var->yres=%d, var->upper_margin=%d, var->lower_margin=%d, var->vsync_len=%d\n", var->yres, var->upper_margin, var->lower_margin, var->vsync_len); */
1180
1181         info->var.xres_virtual = var->xres_virtual;
1182         info->var.yres_virtual = var->yres_virtual;
1183         info->var.bits_per_pixel = var->bits_per_pixel;
1184
1185         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
1186                 vtotal <<= 1;
1187         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
1188                 vtotal <<= 2;
1189         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1190                 /* vtotal <<= 1; */
1191                 /* var->yres <<= 1; */
1192         }
1193
1194         if (!htotal || !vtotal) {
1195                 DPRINTK("XGIfb: Invalid 'var' information\n");
1196                 return -EINVAL;
1197         } printk(KERN_DEBUG "XGIfb: var->pixclock=%d, htotal=%d, vtotal=%d\n",
1198                         var->pixclock, htotal, vtotal);
1199
1200         if (var->pixclock && htotal && vtotal) {
1201                 drate = 1000000000 / var->pixclock;
1202                 hrate = (drate * 1000) / htotal;
1203                 xgi_video_info.refresh_rate = (unsigned int) (hrate * 2
1204                                 / vtotal);
1205         } else {
1206                 xgi_video_info.refresh_rate = 60;
1207         }
1208
1209         printk(KERN_DEBUG "XGIfb: Change mode to %dx%dx%d-%dHz\n",
1210                var->xres,
1211                var->yres,
1212                var->bits_per_pixel,
1213                xgi_video_info.refresh_rate);
1214
1215         old_mode = xgifb_mode_idx;
1216         xgifb_mode_idx = 0;
1217
1218         while ((XGIbios_mode[xgifb_mode_idx].mode_no != 0)
1219                         && (XGIbios_mode[xgifb_mode_idx].xres <= var->xres)) {
1220                 if ((XGIbios_mode[xgifb_mode_idx].xres == var->xres)
1221                                 && (XGIbios_mode[xgifb_mode_idx].yres
1222                                                 == var->yres)
1223                                 && (XGIbios_mode[xgifb_mode_idx].bpp
1224                                                 == var->bits_per_pixel)) {
1225                         XGIfb_mode_no = XGIbios_mode[xgifb_mode_idx].mode_no;
1226                         found_mode = 1;
1227                         break;
1228                 }
1229                 xgifb_mode_idx++;
1230         }
1231
1232         if (found_mode)
1233                 xgifb_mode_idx = XGIfb_validate_mode(xgifb_mode_idx);
1234         else
1235                 xgifb_mode_idx = -1;
1236
1237         if (xgifb_mode_idx < 0) {
1238                 printk(KERN_ERR "XGIfb: Mode %dx%dx%d not supported\n",
1239                        var->xres, var->yres, var->bits_per_pixel);
1240                 xgifb_mode_idx = old_mode;
1241                 return -EINVAL;
1242         }
1243
1244         if (XGIfb_search_refresh_rate(xgi_video_info.refresh_rate) == 0) {
1245                 XGIfb_rate_idx = XGIbios_mode[xgifb_mode_idx].rate_idx;
1246                 xgi_video_info.refresh_rate = 60;
1247         }
1248
1249         if (isactive) {
1250
1251                 XGIfb_pre_setmode();
1252                 if (XGISetModeNew(hw_info, XGIfb_mode_no) == 0) {
1253                         printk(KERN_ERR "XGIfb: Setting mode[0x%x] failed\n",
1254                                XGIfb_mode_no);
1255                         return -EINVAL;
1256                 }
1257                 info->fix.line_length = ((info->var.xres_virtual
1258                                 * info->var.bits_per_pixel) >> 6);
1259
1260                 xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
1261
1262                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1263                 xgifb_reg_set(XGISR,
1264                               0x0E,
1265                               (info->fix.line_length & 0xff00) >> 8);
1266
1267                 XGIfb_post_setmode();
1268
1269                 DPRINTK("XGIfb: Set new mode: %dx%dx%d-%d\n",
1270                                 XGIbios_mode[xgifb_mode_idx].xres,
1271                                 XGIbios_mode[xgifb_mode_idx].yres,
1272                                 XGIbios_mode[xgifb_mode_idx].bpp,
1273                                 xgi_video_info.refresh_rate);
1274
1275                 xgi_video_info.video_bpp = XGIbios_mode[xgifb_mode_idx].bpp;
1276                 xgi_video_info.video_vwidth = info->var.xres_virtual;
1277                 xgi_video_info.video_width = XGIbios_mode[xgifb_mode_idx].xres;
1278                 xgi_video_info.video_vheight = info->var.yres_virtual;
1279                 xgi_video_info.video_height = XGIbios_mode[xgifb_mode_idx].yres;
1280                 xgi_video_info.org_x = xgi_video_info.org_y = 0;
1281                 xgi_video_info.video_linelength = info->var.xres_virtual
1282                                 * (xgi_video_info.video_bpp >> 3);
1283                 switch (xgi_video_info.video_bpp) {
1284                 case 8:
1285                         xgi_video_info.DstColor = 0x0000;
1286                         xgi_video_info.XGI310_AccelDepth = 0x00000000;
1287                         xgi_video_info.video_cmap_len = 256;
1288 #if defined(__powerpc__)
1289                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1290                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1291 #endif
1292                         break;
1293                 case 16:
1294                         xgi_video_info.DstColor = 0x8000;
1295                         xgi_video_info.XGI310_AccelDepth = 0x00010000;
1296 #if defined(__powerpc__)
1297                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1298                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1299 #endif
1300                         xgi_video_info.video_cmap_len = 16;
1301                         break;
1302                 case 32:
1303                         xgi_video_info.DstColor = 0xC000;
1304                         xgi_video_info.XGI310_AccelDepth = 0x00020000;
1305                         xgi_video_info.video_cmap_len = 16;
1306 #if defined(__powerpc__)
1307                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1308                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1309 #endif
1310                         break;
1311                 default:
1312                         xgi_video_info.video_cmap_len = 16;
1313                         printk(KERN_ERR "XGIfb: Unsupported depth %d",
1314                                xgi_video_info.video_bpp);
1315                         break;
1316                 }
1317         }
1318         XGIfb_bpp_to_var(var); /*update ARGB info*/
1319         DEBUGPRN("End of do_set_var");
1320
1321         dumpVGAReg();
1322         return 0;
1323 }
1324
1325 static int XGIfb_pan_var(struct fb_var_screeninfo *var)
1326 {
1327         unsigned int base;
1328
1329         /* printk("Inside pan_var"); */
1330
1331         if (var->xoffset > (var->xres_virtual - var->xres)) {
1332                 /* printk("Pan: xo: %d xv %d xr %d\n",
1333                         var->xoffset, var->xres_virtual, var->xres); */
1334                 return -EINVAL;
1335         }
1336         if (var->yoffset > (var->yres_virtual - var->yres)) {
1337                 /* printk("Pan: yo: %d yv %d yr %d\n",
1338                         var->yoffset, var->yres_virtual, var->yres); */
1339                 return -EINVAL;
1340         }
1341         base = var->yoffset * var->xres_virtual + var->xoffset;
1342
1343         /* calculate base bpp dep. */
1344         switch (var->bits_per_pixel) {
1345         case 16:
1346                 base >>= 1;
1347                 break;
1348         case 32:
1349                 break;
1350         case 8:
1351         default:
1352                 base >>= 2;
1353                 break;
1354         }
1355
1356         xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
1357
1358         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1359         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1360         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1361         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1362         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1363
1364         if (xgi_video_info.disp_state & DISPTYPE_DISP2) {
1365                 xgifb_reg_or(XGIPART1, XGIfb_CRT2_write_enable, 0x01);
1366                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1367                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1368                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1369                 xgifb_reg_and_or(XGIPART1,
1370                                  0x02,
1371                                  0x7F,
1372                                  ((base >> 24) & 0x01) << 7);
1373         }
1374         /* printk("End of pan_var"); */
1375         return 0;
1376 }
1377
1378 static int XGIfb_open(struct fb_info *info, int user)
1379 {
1380         return 0;
1381 }
1382
1383 static int XGIfb_release(struct fb_info *info, int user)
1384 {
1385         return 0;
1386 }
1387
1388 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1389 {
1390         int rc = 16;
1391
1392         switch (var->bits_per_pixel) {
1393         case 8:
1394                 rc = 256;
1395                 break;
1396         case 16:
1397                 rc = 16;
1398                 break;
1399         case 32:
1400                 rc = 16;
1401                 break;
1402         }
1403         return rc;
1404 }
1405
1406 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1407                 unsigned blue, unsigned transp, struct fb_info *info)
1408 {
1409         if (regno >= XGIfb_get_cmap_len(&info->var))
1410                 return 1;
1411
1412         switch (info->var.bits_per_pixel) {
1413         case 8:
1414                 outb(regno, XGIDACA);
1415                 outb((red >> 10), XGIDACD);
1416                 outb((green >> 10), XGIDACD);
1417                 outb((blue >> 10), XGIDACD);
1418                 if (xgi_video_info.disp_state & DISPTYPE_DISP2) {
1419                         outb(regno, XGIDAC2A);
1420                         outb((red >> 8), XGIDAC2D);
1421                         outb((green >> 8), XGIDAC2D);
1422                         outb((blue >> 8), XGIDAC2D);
1423                 }
1424                 break;
1425         case 16:
1426                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1427                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1428                                 >> 11);
1429                 break;
1430         case 32:
1431                 red >>= 8;
1432                 green >>= 8;
1433                 blue >>= 8;
1434                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1435                                 << 8) | (blue);
1436                 break;
1437         }
1438         return 0;
1439 }
1440
1441 /* ----------- FBDev related routines for all series ---------- */
1442
1443 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1444                 struct fb_info *info)
1445 {
1446         DEBUGPRN("inside get_fix");
1447         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1448
1449         fix->smem_start = xgi_video_info.video_base;
1450
1451         fix->smem_len = xgi_video_info.video_size;
1452
1453         fix->type = FB_TYPE_PACKED_PIXELS;
1454         fix->type_aux = 0;
1455         if (xgi_video_info.video_bpp == 8)
1456                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1457         else
1458                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1459         fix->xpanstep = 0;
1460         if (XGIfb_ypan)
1461                 fix->ypanstep = 1;
1462         fix->ywrapstep = 0;
1463         fix->line_length = xgi_video_info.video_linelength;
1464         fix->mmio_start = xgi_video_info.mmio_base;
1465         fix->mmio_len = xgi_video_info.mmio_size;
1466         fix->accel = FB_ACCEL_XGI_XABRE;
1467
1468         DEBUGPRN("end of get_fix");
1469         return 0;
1470 }
1471
1472 static int XGIfb_set_par(struct fb_info *info)
1473 {
1474         int err;
1475
1476         /* printk("XGIfb: inside set_par\n"); */
1477         err = XGIfb_do_set_var(&info->var, 1, info);
1478         if (err)
1479                 return err;
1480         XGIfb_get_fix(&info->fix, -1, info);
1481         /* printk("XGIfb: end of set_par\n"); */
1482         return 0;
1483 }
1484
1485 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1486 {
1487         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1488                         + var->hsync_len;
1489         unsigned int vtotal = 0;
1490         unsigned int drate = 0, hrate = 0;
1491         int found_mode = 0;
1492         int refresh_rate, search_idx;
1493
1494         DEBUGPRN("Inside check_var");
1495
1496         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1497                 vtotal = var->upper_margin + var->yres + var->lower_margin
1498                                 + var->vsync_len;
1499                 vtotal <<= 1;
1500         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1501                 vtotal = var->upper_margin + var->yres + var->lower_margin
1502                                 + var->vsync_len;
1503                 vtotal <<= 2;
1504         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1505                 vtotal = var->upper_margin + (var->yres / 2)
1506                                 + var->lower_margin + var->vsync_len;
1507         } else
1508                 vtotal = var->upper_margin + var->yres + var->lower_margin
1509                                 + var->vsync_len;
1510
1511         if (!(htotal) || !(vtotal))
1512                 XGIFAIL("XGIfb: no valid timing data");
1513
1514         if (var->pixclock && htotal && vtotal) {
1515                 drate = 1000000000 / var->pixclock;
1516                 hrate = (drate * 1000) / htotal;
1517                 xgi_video_info.refresh_rate =
1518                         (unsigned int) (hrate * 2 / vtotal);
1519                 printk(KERN_DEBUG
1520                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1521                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1522                         __func__, var->pixclock, htotal, vtotal,
1523                         __func__, drate, hrate, xgi_video_info.refresh_rate);
1524         } else {
1525                 xgi_video_info.refresh_rate = 60;
1526         }
1527
1528         /*
1529         if ((var->pixclock) && (htotal)) {
1530                 drate = 1E12 / var->pixclock;
1531                 hrate = drate / htotal;
1532                 refresh_rate = (unsigned int) (hrate / vtotal * 2 + 0.5);
1533         } else {
1534                 refresh_rate = 60;
1535         }
1536         */
1537         /* TW: Calculation wrong for 1024x600 - force it to 60Hz */
1538         if ((var->xres == 1024) && (var->yres == 600))
1539                 refresh_rate = 60;
1540
1541         search_idx = 0;
1542         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1543                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1544                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1545                         (XGIbios_mode[search_idx].yres == var->yres) &&
1546                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1547                         if (XGIfb_validate_mode(search_idx) > 0) {
1548                                 found_mode = 1;
1549                                 break;
1550                         }
1551                 }
1552                 search_idx++;
1553         }
1554
1555         if (!found_mode) {
1556
1557                 printk(KERN_ERR "XGIfb: %dx%dx%d is no valid mode\n",
1558                         var->xres, var->yres, var->bits_per_pixel);
1559                 search_idx = 0;
1560                 while (XGIbios_mode[search_idx].mode_no != 0) {
1561                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1562                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1563                             (var->bits_per_pixel ==
1564                              XGIbios_mode[search_idx].bpp)) {
1565                                 if (XGIfb_validate_mode(search_idx) > 0) {
1566                                         found_mode = 1;
1567                                         break;
1568                                 }
1569                         }
1570                         search_idx++;
1571                 }
1572                 if (found_mode) {
1573                         var->xres = XGIbios_mode[search_idx].xres;
1574                         var->yres = XGIbios_mode[search_idx].yres;
1575                         printk(KERN_DEBUG "XGIfb: Adapted to mode %dx%dx%d\n",
1576                                 var->xres, var->yres, var->bits_per_pixel);
1577
1578                 } else {
1579                         printk(KERN_ERR "XGIfb: Failed to find similar mode to %dx%dx%d\n",
1580                                 var->xres, var->yres, var->bits_per_pixel);
1581                         return -EINVAL;
1582                 }
1583         }
1584
1585         /* TW: TODO: Check the refresh rate */
1586
1587         /* Adapt RGB settings */
1588         XGIfb_bpp_to_var(var);
1589
1590         /* Sanity check for offsets */
1591         if (var->xoffset < 0)
1592                 var->xoffset = 0;
1593         if (var->yoffset < 0)
1594                 var->yoffset = 0;
1595
1596         if (!XGIfb_ypan) {
1597                 if (var->xres != var->xres_virtual)
1598                         var->xres_virtual = var->xres;
1599                 if (var->yres != var->yres_virtual)
1600                         var->yres_virtual = var->yres;
1601         } /* else { */
1602                 /* TW: Now patch yres_virtual if we use panning */
1603                 /* May I do this? */
1604                 /* var->yres_virtual = xgi_video_info.heapstart /
1605                         (var->xres * (var->bits_per_pixel >> 3)); */
1606                 /* if (var->yres_virtual <= var->yres) { */
1607                 /* TW: Paranoia check */
1608                 /* var->yres_virtual = var->yres; */
1609                 /* } */
1610         /* } */
1611
1612         /* Truncate offsets to maximum if too high */
1613         if (var->xoffset > var->xres_virtual - var->xres)
1614                 var->xoffset = var->xres_virtual - var->xres - 1;
1615
1616         if (var->yoffset > var->yres_virtual - var->yres)
1617                 var->yoffset = var->yres_virtual - var->yres - 1;
1618
1619         /* Set everything else to 0 */
1620         var->red.msb_right =
1621         var->green.msb_right =
1622         var->blue.msb_right =
1623         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1624
1625         DEBUGPRN("end of check_var");
1626         return 0;
1627 }
1628
1629 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1630                 struct fb_info *info)
1631 {
1632         int err;
1633
1634         /* printk("\nInside pan_display:\n"); */
1635
1636         if (var->xoffset > (var->xres_virtual - var->xres))
1637                 return -EINVAL;
1638         if (var->yoffset > (var->yres_virtual - var->yres))
1639                 return -EINVAL;
1640
1641         if (var->vmode & FB_VMODE_YWRAP) {
1642                 if (var->yoffset < 0 || var->yoffset >= info->var.yres_virtual
1643                                 || var->xoffset)
1644                         return -EINVAL;
1645         } else {
1646                 if (var->xoffset + info->var.xres > info->var.xres_virtual
1647                                 || var->yoffset + info->var.yres
1648                                                 > info->var.yres_virtual)
1649                         return -EINVAL;
1650         }
1651         err = XGIfb_pan_var(var);
1652         if (err < 0)
1653                 return err;
1654
1655         info->var.xoffset = var->xoffset;
1656         info->var.yoffset = var->yoffset;
1657         if (var->vmode & FB_VMODE_YWRAP)
1658                 info->var.vmode |= FB_VMODE_YWRAP;
1659         else
1660                 info->var.vmode &= ~FB_VMODE_YWRAP;
1661
1662         /* printk("End of pan_display\n"); */
1663         return 0;
1664 }
1665
1666 static int XGIfb_blank(int blank, struct fb_info *info)
1667 {
1668         u8 reg;
1669
1670         reg = xgifb_reg_get(XGICR, 0x17);
1671
1672         if (blank > 0)
1673                 reg &= 0x7f;
1674         else
1675                 reg |= 0x80;
1676
1677         xgifb_reg_set(XGICR, 0x17, reg);
1678         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1679         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1680         return 0;
1681 }
1682
1683 static struct fb_ops XGIfb_ops = {
1684         .owner = THIS_MODULE,
1685         .fb_open = XGIfb_open,
1686         .fb_release = XGIfb_release,
1687         .fb_check_var = XGIfb_check_var,
1688         .fb_set_par = XGIfb_set_par,
1689         .fb_setcolreg = XGIfb_setcolreg,
1690         .fb_pan_display = XGIfb_pan_display,
1691         .fb_blank = XGIfb_blank,
1692         .fb_fillrect = cfb_fillrect,
1693         .fb_copyarea = cfb_copyarea,
1694         .fb_imageblit = cfb_imageblit,
1695         /* .fb_mmap = XGIfb_mmap, */
1696 };
1697
1698 /* ---------------- Chip generation dependent routines ---------------- */
1699
1700 /* for XGI 315/550/650/740/330 */
1701
1702 static int XGIfb_get_dram_size(void)
1703 {
1704
1705         u8 ChannelNum, tmp;
1706         u8 reg = 0;
1707
1708         /* xorg driver sets 32MB * 1 channel */
1709         if (xgi_video_info.chip == XG27)
1710                 xgifb_reg_set(XGISR, IND_XGI_DRAM_SIZE, 0x51);
1711
1712         reg = xgifb_reg_get(XGISR, IND_XGI_DRAM_SIZE);
1713         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1714         case XGI_DRAM_SIZE_1MB:
1715                 xgi_video_info.video_size = 0x100000;
1716                 break;
1717         case XGI_DRAM_SIZE_2MB:
1718                 xgi_video_info.video_size = 0x200000;
1719                 break;
1720         case XGI_DRAM_SIZE_4MB:
1721                 xgi_video_info.video_size = 0x400000;
1722                 break;
1723         case XGI_DRAM_SIZE_8MB:
1724                 xgi_video_info.video_size = 0x800000;
1725                 break;
1726         case XGI_DRAM_SIZE_16MB:
1727                 xgi_video_info.video_size = 0x1000000;
1728                 break;
1729         case XGI_DRAM_SIZE_32MB:
1730                 xgi_video_info.video_size = 0x2000000;
1731                 break;
1732         case XGI_DRAM_SIZE_64MB:
1733                 xgi_video_info.video_size = 0x4000000;
1734                 break;
1735         case XGI_DRAM_SIZE_128MB:
1736                 xgi_video_info.video_size = 0x8000000;
1737                 break;
1738         case XGI_DRAM_SIZE_256MB:
1739                 xgi_video_info.video_size = 0x10000000;
1740                 break;
1741         default:
1742                 return -1;
1743         }
1744
1745         tmp = (reg & 0x0c) >> 2;
1746         switch (xgi_video_info.chip) {
1747         case XG20:
1748         case XG21:
1749         case XG27:
1750                 ChannelNum = 1;
1751                 break;
1752
1753         case XG42:
1754                 if (reg & 0x04)
1755                         ChannelNum = 2;
1756                 else
1757                         ChannelNum = 1;
1758                 break;
1759
1760         case XG45:
1761                 if (tmp == 1)
1762                         ChannelNum = 2;
1763                 else if (tmp == 2)
1764                         ChannelNum = 3;
1765                 else if (tmp == 3)
1766                         ChannelNum = 4;
1767                 else
1768                         ChannelNum = 1;
1769                 break;
1770
1771         case XG40:
1772         default:
1773                 if (tmp == 2)
1774                         ChannelNum = 2;
1775                 else if (tmp == 3)
1776                         ChannelNum = 3;
1777                 else
1778                         ChannelNum = 1;
1779                 break;
1780         }
1781
1782         xgi_video_info.video_size = xgi_video_info.video_size * ChannelNum;
1783         /* PLiad fixed for benchmarking and fb set */
1784         /* xgi_video_info.video_size = 0x200000; */ /* 1024x768x16 */
1785         /* xgi_video_info.video_size = 0x1000000; */ /* benchmark */
1786
1787         printk("XGIfb: SR14=%x DramSzie %x ChannelNum %x\n",
1788                reg,
1789                xgi_video_info.video_size, ChannelNum);
1790         return 0;
1791
1792 }
1793
1794 static void XGIfb_detect_VB(void)
1795 {
1796         u8 cr32, temp = 0;
1797
1798         xgi_video_info.TV_plug = xgi_video_info.TV_type = 0;
1799
1800         switch (xgi_video_info.hasVB) {
1801         case HASVB_LVDS_CHRONTEL:
1802         case HASVB_CHRONTEL:
1803                 break;
1804         case HASVB_301:
1805         case HASVB_302:
1806                 /* XGI_Sense30x(); */ /* Yi-Lin TV Sense? */
1807                 break;
1808         }
1809
1810         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1811
1812         if ((cr32 & XGI_CRT1) && !XGIfb_crt1off)
1813                 XGIfb_crt1off = 0;
1814         else {
1815                 if (cr32 & 0x5F)
1816                         XGIfb_crt1off = 1;
1817                 else
1818                         XGIfb_crt1off = 0;
1819         }
1820
1821         if (XGIfb_crt2type != -1)
1822                 /* TW: Override with option */
1823                 xgi_video_info.disp_state = XGIfb_crt2type;
1824         else if (cr32 & XGI_VB_TV)
1825                 xgi_video_info.disp_state = DISPTYPE_TV;
1826         else if (cr32 & XGI_VB_LCD)
1827                 xgi_video_info.disp_state = DISPTYPE_LCD;
1828         else if (cr32 & XGI_VB_CRT2)
1829                 xgi_video_info.disp_state = DISPTYPE_CRT2;
1830         else
1831                 xgi_video_info.disp_state = 0;
1832
1833         if (XGIfb_tvplug != -1)
1834                 /* PR/TW: Override with option */
1835                 xgi_video_info.TV_plug = XGIfb_tvplug;
1836         else if (cr32 & XGI_VB_HIVISION) {
1837                 xgi_video_info.TV_type = TVMODE_HIVISION;
1838                 xgi_video_info.TV_plug = TVPLUG_SVIDEO;
1839         } else if (cr32 & XGI_VB_SVIDEO)
1840                 xgi_video_info.TV_plug = TVPLUG_SVIDEO;
1841         else if (cr32 & XGI_VB_COMPOSITE)
1842                 xgi_video_info.TV_plug = TVPLUG_COMPOSITE;
1843         else if (cr32 & XGI_VB_SCART)
1844                 xgi_video_info.TV_plug = TVPLUG_SCART;
1845
1846         if (xgi_video_info.TV_type == 0) {
1847                 temp = xgifb_reg_get(XGICR, 0x38);
1848                 if (temp & 0x10)
1849                         xgi_video_info.TV_type = TVMODE_PAL;
1850                 else
1851                         xgi_video_info.TV_type = TVMODE_NTSC;
1852         }
1853
1854         /* TW: Copy forceCRT1 option to CRT1off if option is given */
1855         if (XGIfb_forcecrt1 != -1) {
1856                 if (XGIfb_forcecrt1)
1857                         XGIfb_crt1off = 0;
1858                 else
1859                         XGIfb_crt1off = 1;
1860         }
1861 }
1862
1863 static int XGIfb_has_VB(void)
1864 {
1865         u8 vb_chipid;
1866
1867         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1868         switch (vb_chipid) {
1869         case 0x01:
1870                 xgi_video_info.hasVB = HASVB_301;
1871                 break;
1872         case 0x02:
1873                 xgi_video_info.hasVB = HASVB_302;
1874                 break;
1875         default:
1876                 xgi_video_info.hasVB = HASVB_NONE;
1877                 return 0;
1878         }
1879         return 1;
1880 }
1881
1882 static void XGIfb_get_VB_type(void)
1883 {
1884         u8 reg;
1885
1886         if (!XGIfb_has_VB()) {
1887                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1888                 switch ((reg & XGI_EXTERNAL_CHIP_MASK) >> 1) {
1889                 case XGI310_EXTERNAL_CHIP_LVDS:
1890                         xgi_video_info.hasVB = HASVB_LVDS;
1891                         break;
1892                 case XGI310_EXTERNAL_CHIP_LVDS_CHRONTEL:
1893                         xgi_video_info.hasVB = HASVB_LVDS_CHRONTEL;
1894                         break;
1895                 default:
1896                         break;
1897                 }
1898         }
1899 }
1900
1901 static int __init xgifb_optval(char *fullopt, int validx)
1902 {
1903         unsigned long lres;
1904
1905         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1906                 pr_err("xgifb: invalid value for option: %s\n", fullopt);
1907                 return 0;
1908         }
1909         return lres;
1910 }
1911
1912 static int __init XGIfb_setup(char *options)
1913 {
1914         char *this_opt;
1915
1916         if (!options || !*options)
1917                 return 0;
1918
1919         pr_info("xgifb: options: %s\n", options);
1920
1921         while ((this_opt = strsep(&options, ",")) != NULL) {
1922
1923                 if (!*this_opt)
1924                         continue;
1925
1926                 if (!strncmp(this_opt, "mode:", 5)) {
1927                         mode = this_opt + 5;
1928                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1929                         vesa = xgifb_optval(this_opt, 5);
1930                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1931                         xgi_video_info.refresh_rate = xgifb_optval(this_opt, 6);
1932                 } else if (!strncmp(this_opt, "rate:", 5)) {
1933                         xgi_video_info.refresh_rate = xgifb_optval(this_opt, 5);
1934                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1935                         XGIfb_crt1off = 1;
1936                 } else if (!strncmp(this_opt, "filter:", 7)) {
1937                         filter = xgifb_optval(this_opt, 7);
1938                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1939                         XGIfb_search_crt2type(this_opt + 14);
1940                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1941                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1942                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1943                         XGIfb_search_tvstd(this_opt + 7);
1944                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1945                         XGIfb_search_tvstd(this_opt + 7);
1946                 } else if (!strncmp(this_opt, "dstn", 4)) {
1947                         enable_dstn = 1;
1948                         /* TW: DSTN overrules forcecrt2type */
1949                         XGIfb_crt2type = DISPTYPE_LCD;
1950                 } else if (!strncmp(this_opt, "noypan", 6)) {
1951                         XGIfb_ypan = 0;
1952                 } else if (!strncmp(this_opt, "userom:", 7)) {
1953                         XGIfb_userom = xgifb_optval(this_opt, 7);
1954                 } else {
1955                         mode = this_opt;
1956                 }
1957         }
1958         return 0;
1959 }
1960
1961 static unsigned char *xgifb_copy_rom(struct pci_dev *dev)
1962 {
1963         void __iomem *rom_address;
1964         unsigned char *rom_copy;
1965         size_t rom_size;
1966
1967         rom_address = pci_map_rom(dev, &rom_size);
1968         if (rom_address == NULL)
1969                 return NULL;
1970
1971         rom_copy = vzalloc(XGIFB_ROM_SIZE);
1972         if (rom_copy == NULL)
1973                 goto done;
1974
1975         rom_size = min_t(size_t, rom_size, XGIFB_ROM_SIZE);
1976         memcpy_fromio(rom_copy, rom_address, rom_size);
1977
1978 done:
1979         pci_unmap_rom(dev, rom_address);
1980         return rom_copy;
1981 }
1982
1983 static int __devinit xgifb_probe(struct pci_dev *pdev,
1984                 const struct pci_device_id *ent)
1985 {
1986         u8 reg, reg1;
1987         u8 CR48, CR38;
1988         int ret;
1989         bool xgi21_drvlcdcaplist = false;
1990         struct fb_info *fb_info;
1991         struct xgi_hw_device_info *hw_info = &xgi_video_info.hw_info;
1992
1993         memset(hw_info, 0, sizeof(struct xgi_hw_device_info));
1994         fb_info = framebuffer_alloc(sizeof(struct fb_info), &pdev->dev);
1995         if (!fb_info)
1996                 return -ENOMEM;
1997
1998         xgi_video_info.fb_info = fb_info;
1999         xgi_video_info.chip_id = pdev->device;
2000         pci_read_config_byte(pdev,
2001                              PCI_REVISION_ID,
2002                              &xgi_video_info.revision_id);
2003         hw_info->jChipRevision = xgi_video_info.revision_id;
2004
2005         xgi_video_info.pcibus = pdev->bus->number;
2006         xgi_video_info.pcislot = PCI_SLOT(pdev->devfn);
2007         xgi_video_info.pcifunc = PCI_FUNC(pdev->devfn);
2008         xgi_video_info.subsysvendor = pdev->subsystem_vendor;
2009         xgi_video_info.subsysdevice = pdev->subsystem_device;
2010
2011         xgi_video_info.video_base = pci_resource_start(pdev, 0);
2012         xgi_video_info.mmio_base = pci_resource_start(pdev, 1);
2013         xgi_video_info.mmio_size = pci_resource_len(pdev, 1);
2014         xgi_video_info.vga_base = pci_resource_start(pdev, 2) + 0x30;
2015         hw_info->pjIOAddress = (unsigned char *)xgi_video_info.vga_base;
2016         /* XGI_Pr.RelIO  = ioremap(pci_resource_start(pdev, 2), 128) + 0x30; */
2017         printk("XGIfb: Relocate IO address: %lx [%08lx]\n",
2018                (unsigned long)pci_resource_start(pdev, 2), XGI_Pr.RelIO);
2019
2020         if (pci_enable_device(pdev)) {
2021                 ret = -EIO;
2022                 goto error;
2023         }
2024
2025         XGIRegInit(&XGI_Pr, (unsigned long)hw_info->pjIOAddress);
2026
2027         xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
2028         reg1 = xgifb_reg_get(XGISR, IND_XGI_PASSWORD);
2029
2030         if (reg1 != 0xa1) { /*I/O error */
2031                 printk("\nXGIfb: I/O error!!!");
2032                 ret = -EIO;
2033                 goto error;
2034         }
2035
2036         switch (xgi_video_info.chip_id) {
2037         case PCI_DEVICE_ID_XG_20:
2038                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
2039                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
2040                 if (CR48&GPIOG_READ)
2041                         xgi_video_info.chip = XG21;
2042                 else
2043                         xgi_video_info.chip = XG20;
2044                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2045                 break;
2046         case PCI_DEVICE_ID_XG_40:
2047                 xgi_video_info.chip = XG40;
2048                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2049                 break;
2050         case PCI_DEVICE_ID_XG_41:
2051                 xgi_video_info.chip = XG41;
2052                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2053                 break;
2054         case PCI_DEVICE_ID_XG_42:
2055                 xgi_video_info.chip = XG42;
2056                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2057                 break;
2058         case PCI_DEVICE_ID_XG_27:
2059                 xgi_video_info.chip = XG27;
2060                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2061                 break;
2062         default:
2063                 ret = -ENODEV;
2064                 goto error;
2065         }
2066
2067         printk("XGIfb:chipid = %x\n", xgi_video_info.chip);
2068         hw_info->jChipType = xgi_video_info.chip;
2069
2070         if ((xgi_video_info.chip == XG21) || (XGIfb_userom)) {
2071                 hw_info->pjVirtualRomBase = xgifb_copy_rom(pdev);
2072                 if (hw_info->pjVirtualRomBase)
2073                         printk(KERN_INFO "XGIfb: Video ROM found and mapped to %p\n",
2074                                hw_info->pjVirtualRomBase);
2075                 else
2076                         printk(KERN_INFO "XGIfb: Video ROM not found\n");
2077         } else {
2078                 hw_info->pjVirtualRomBase = NULL;
2079                 printk(KERN_INFO "XGIfb: Video ROM usage disabled\n");
2080         }
2081         hw_info->pQueryVGAConfigSpace = &XGIfb_query_VGA_config_space;
2082
2083         if (XGIfb_get_dram_size()) {
2084                 printk(KERN_INFO "XGIfb: Fatal error: Unable to determine RAM size.\n");
2085                 ret = -ENODEV;
2086                 goto error;
2087         }
2088
2089         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
2090         xgifb_reg_or(XGISR,
2091                      IND_XGI_PCI_ADDRESS_SET,
2092                      (XGI_PCI_ADDR_ENABLE | XGI_MEM_MAP_IO_ENABLE));
2093         /* Enable 2D accelerator engine */
2094         xgifb_reg_or(XGISR, IND_XGI_MODULE_ENABLE, XGI_ENABLE_2D);
2095
2096         hw_info->ulVideoMemorySize = xgi_video_info.video_size;
2097
2098         if (!request_mem_region(xgi_video_info.video_base,
2099                                 xgi_video_info.video_size,
2100                                 "XGIfb FB")) {
2101                 printk("unable request memory size %x",
2102                        xgi_video_info.video_size);
2103                 printk(KERN_ERR "XGIfb: Fatal error: Unable to reserve frame buffer memory\n");
2104                 printk(KERN_ERR "XGIfb: Is there another framebuffer driver active?\n");
2105                 ret = -ENODEV;
2106                 goto error;
2107         }
2108
2109         if (!request_mem_region(xgi_video_info.mmio_base,
2110                                 xgi_video_info.mmio_size,
2111                                 "XGIfb MMIO")) {
2112                 printk(KERN_ERR "XGIfb: Fatal error: Unable to reserve MMIO region\n");
2113                 ret = -ENODEV;
2114                 goto error_0;
2115         }
2116
2117         xgi_video_info.video_vbase = hw_info->pjVideoMemoryAddress =
2118         ioremap(xgi_video_info.video_base, xgi_video_info.video_size);
2119         xgi_video_info.mmio_vbase = ioremap(xgi_video_info.mmio_base,
2120                                             xgi_video_info.mmio_size);
2121
2122         printk(KERN_INFO "XGIfb: Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n",
2123                xgi_video_info.video_base,
2124                xgi_video_info.video_vbase,
2125                xgi_video_info.video_size / 1024);
2126
2127         printk(KERN_INFO "XGIfb: MMIO at 0x%lx, mapped to 0x%p, size %ldk\n",
2128                xgi_video_info.mmio_base, xgi_video_info.mmio_vbase,
2129                xgi_video_info.mmio_size / 1024);
2130         printk("XGIfb: XGIInitNew() ...");
2131         if (XGIInitNew(hw_info))
2132                 printk("OK\n");
2133         else
2134                 printk("Fail\n");
2135
2136         xgi_video_info.mtrr = (unsigned int) 0;
2137
2138         xgi_video_info.hasVB = HASVB_NONE;
2139         if ((xgi_video_info.chip == XG20) ||
2140             (xgi_video_info.chip == XG27)) {
2141                 xgi_video_info.hasVB = HASVB_NONE;
2142         } else if (xgi_video_info.chip == XG21) {
2143                 CR38 = xgifb_reg_get(XGICR, 0x38);
2144                 if ((CR38&0xE0) == 0xC0) {
2145                         xgi_video_info.disp_state = DISPTYPE_LCD;
2146                         if (!XGIfb_GetXG21LVDSData())
2147                                 xgi21_drvlcdcaplist = true;
2148                 } else if ((CR38&0xE0) == 0x60) {
2149                         xgi_video_info.hasVB = HASVB_CHRONTEL;
2150                 } else {
2151                         xgi_video_info.hasVB = HASVB_NONE;
2152                 }
2153         } else {
2154                 XGIfb_get_VB_type();
2155         }
2156
2157         hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
2158
2159         hw_info->ulExternalChip = 0;
2160
2161         switch (xgi_video_info.hasVB) {
2162         case HASVB_301:
2163                 reg = xgifb_reg_get(XGIPART4, 0x01);
2164                 if (reg >= 0xE0) {
2165                         hw_info->ujVBChipID = VB_CHIP_302LV;
2166                         printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
2167                 } else if (reg >= 0xD0) {
2168                         hw_info->ujVBChipID = VB_CHIP_301LV;
2169                         printk(KERN_INFO "XGIfb: XGI301LV bridge detected (revision 0x%02x)\n", reg);
2170                 }
2171                 /* else if (reg >= 0xB0) {
2172                         hw_info->ujVBChipID = VB_CHIP_301B;
2173                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
2174                         printk("XGIfb: XGI301B bridge detected\n");
2175                 } */
2176                 else {
2177                         hw_info->ujVBChipID = VB_CHIP_301;
2178                         printk("XGIfb: XGI301 bridge detected\n");
2179                 }
2180                 break;
2181         case HASVB_302:
2182                 reg = xgifb_reg_get(XGIPART4, 0x01);
2183                 if (reg >= 0xE0) {
2184                         hw_info->ujVBChipID = VB_CHIP_302LV;
2185                         printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
2186                 } else if (reg >= 0xD0) {
2187                         hw_info->ujVBChipID = VB_CHIP_301LV;
2188                         printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
2189                 } else if (reg >= 0xB0) {
2190                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
2191
2192                         hw_info->ujVBChipID = VB_CHIP_302B;
2193
2194                 } else {
2195                         hw_info->ujVBChipID = VB_CHIP_302;
2196                         printk(KERN_INFO "XGIfb: XGI302 bridge detected\n");
2197                 }
2198                 break;
2199         case HASVB_LVDS:
2200                 hw_info->ulExternalChip = 0x1;
2201                 printk(KERN_INFO "XGIfb: LVDS transmitter detected\n");
2202                 break;
2203         case HASVB_TRUMPION:
2204                 hw_info->ulExternalChip = 0x2;
2205                 printk(KERN_INFO "XGIfb: Trumpion Zurac LVDS scaler detected\n");
2206                 break;
2207         case HASVB_CHRONTEL:
2208                 hw_info->ulExternalChip = 0x4;
2209                 printk(KERN_INFO "XGIfb: Chrontel TV encoder detected\n");
2210                 break;
2211         case HASVB_LVDS_CHRONTEL:
2212                 hw_info->ulExternalChip = 0x5;
2213                 printk(KERN_INFO "XGIfb: LVDS transmitter and Chrontel TV encoder detected\n");
2214                 break;
2215         default:
2216                 printk(KERN_INFO "XGIfb: No or unknown bridge type detected\n");
2217                 break;
2218         }
2219
2220         if (xgi_video_info.hasVB != HASVB_NONE)
2221                 XGIfb_detect_VB();
2222
2223         if (xgi_video_info.disp_state & DISPTYPE_DISP2) {
2224                 if (XGIfb_crt1off)
2225                         xgi_video_info.disp_state |= DISPMODE_SINGLE;
2226                 else
2227                         xgi_video_info.disp_state |= (DISPMODE_MIRROR |
2228                                                       DISPTYPE_CRT1);
2229         } else {
2230                 xgi_video_info.disp_state = DISPMODE_SINGLE |
2231                                             DISPTYPE_CRT1;
2232         }
2233
2234         if (xgi_video_info.disp_state & DISPTYPE_LCD) {
2235                 if (!enable_dstn) {
2236                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
2237                         reg &= 0x0f;
2238                         hw_info->ulCRT2LCDType = XGI310paneltype[reg];
2239
2240                 } else {
2241                         /* TW: FSTN/DSTN */
2242                         hw_info->ulCRT2LCDType = LCD_320x480;
2243                 }
2244         }
2245
2246         if ((hw_info->ujVBChipID == VB_CHIP_302B) ||
2247                         (hw_info->ujVBChipID == VB_CHIP_301LV) ||
2248                         (hw_info->ujVBChipID == VB_CHIP_302LV)) {
2249                 int tmp;
2250                 tmp = xgifb_reg_get(XGICR, 0x34);
2251                 if (tmp <= 0x13) {
2252                         /* Currently on LCDA?
2253                          *(Some BIOSes leave CR38) */
2254                         tmp = xgifb_reg_get(XGICR, 0x38);
2255                         if ((tmp & 0x03) == 0x03) {
2256                                 /* XGI_Pr.XGI_UseLCDA = 1; */
2257                         } else {
2258                                 /* Currently on LCDA?
2259                                  *(Some newer BIOSes set D0 in CR35) */
2260                                 tmp = xgifb_reg_get(XGICR, 0x35);
2261                                 if (tmp & 0x01) {
2262                                         /* XGI_Pr.XGI_UseLCDA = 1; */
2263                                 } else {
2264                                         tmp = xgifb_reg_get(XGICR,
2265                                                             0x30);
2266                                         if (tmp & 0x20) {
2267                                                 tmp = xgifb_reg_get(
2268                                                         XGIPART1, 0x13);
2269                                                 if (tmp & 0x04) {
2270                                                         /* XGI_Pr.XGI_UseLCDA = 1; */
2271                                                 }
2272                                         }
2273                                 }
2274                         }
2275                 }
2276
2277         }
2278
2279         if (mode)
2280                 XGIfb_search_mode(mode);
2281         else if (vesa != -1)
2282                 XGIfb_search_vesamode(vesa);
2283
2284         if (xgifb_mode_idx >= 0)
2285                 xgifb_mode_idx = XGIfb_validate_mode(xgifb_mode_idx);
2286
2287         if (xgifb_mode_idx < 0) {
2288                 if ((xgi_video_info.disp_state & DISPTYPE_DISP2) ==
2289                         DISPTYPE_LCD &&
2290                     xgi_video_info.chip == XG21)
2291                         xgifb_mode_idx = XGIfb_GetXG21DefaultLVDSModeIdx();
2292                 else
2293                         xgifb_mode_idx = DEFAULT_MODE;
2294         }
2295
2296         if (xgifb_mode_idx < 0) {
2297                 dev_err(&pdev->dev, "no supported video mode found\n");
2298                 goto error_1;
2299         }
2300
2301         if (xgi21_drvlcdcaplist) {
2302                 int m;
2303
2304                 for (m = 0; m < ARRAY_SIZE(XGI21_LCDCapList); m++)
2305                         if ((XGI21_LCDCapList[m].LVDSHDE ==
2306                                 XGIbios_mode[xgifb_mode_idx].xres) &&
2307                             (XGI21_LCDCapList[m].LVDSVDE ==
2308                                 XGIbios_mode[xgifb_mode_idx].yres)) {
2309                                 xgifb_reg_set(XGI_Pr.P3d4, 0x36, m);
2310                                 break;
2311                         }
2312         }
2313
2314         XGIfb_mode_no = XGIbios_mode[xgifb_mode_idx].mode_no;
2315
2316         /* yilin set default refresh rate */
2317         if (xgi_video_info.refresh_rate == 0)
2318                 xgi_video_info.refresh_rate = 60;
2319         if (XGIfb_search_refresh_rate(
2320                         xgi_video_info.refresh_rate) == 0) {
2321                 XGIfb_rate_idx = XGIbios_mode[xgifb_mode_idx].rate_idx;
2322                 xgi_video_info.refresh_rate = 60;
2323         }
2324
2325         xgi_video_info.video_bpp = XGIbios_mode[xgifb_mode_idx].bpp;
2326         xgi_video_info.video_vwidth =
2327                 xgi_video_info.video_width =
2328                         XGIbios_mode[xgifb_mode_idx].xres;
2329         xgi_video_info.video_vheight =
2330                 xgi_video_info.video_height =
2331                         XGIbios_mode[xgifb_mode_idx].yres;
2332         xgi_video_info.org_x = xgi_video_info.org_y = 0;
2333         xgi_video_info.video_linelength =
2334                 xgi_video_info.video_width *
2335                 (xgi_video_info.video_bpp >> 3);
2336         switch (xgi_video_info.video_bpp) {
2337         case 8:
2338                 xgi_video_info.DstColor = 0x0000;
2339                 xgi_video_info.XGI310_AccelDepth = 0x00000000;
2340                 xgi_video_info.video_cmap_len = 256;
2341                 break;
2342         case 16:
2343                 xgi_video_info.DstColor = 0x8000;
2344                 xgi_video_info.XGI310_AccelDepth = 0x00010000;
2345                 xgi_video_info.video_cmap_len = 16;
2346                 break;
2347         case 32:
2348                 xgi_video_info.DstColor = 0xC000;
2349                 xgi_video_info.XGI310_AccelDepth = 0x00020000;
2350                 xgi_video_info.video_cmap_len = 16;
2351                 break;
2352         default:
2353                 xgi_video_info.video_cmap_len = 16;
2354                 printk(KERN_INFO "XGIfb: Unsupported depth %d",
2355                        xgi_video_info.video_bpp);
2356                 break;
2357         }
2358
2359         printk(KERN_INFO "XGIfb: Default mode is %dx%dx%d (%dHz)\n",
2360                xgi_video_info.video_width,
2361                xgi_video_info.video_height,
2362                xgi_video_info.video_bpp,
2363                xgi_video_info.refresh_rate);
2364
2365         default_var.xres =
2366                 default_var.xres_virtual =
2367                         xgi_video_info.video_width;
2368         default_var.yres =
2369                 default_var.yres_virtual =
2370                         xgi_video_info.video_height;
2371         default_var.bits_per_pixel = xgi_video_info.video_bpp;
2372
2373         XGIfb_bpp_to_var(&default_var);
2374
2375         default_var.pixclock = (u32) (1000000000 /
2376                         XGIfb_mode_rate_to_dclock(&XGI_Pr, hw_info,
2377                                         XGIfb_mode_no, XGIfb_rate_idx));
2378
2379         if (XGIfb_mode_rate_to_ddata(&XGI_Pr, hw_info,
2380                 XGIfb_mode_no, XGIfb_rate_idx,
2381                 &default_var.left_margin, &default_var.right_margin,
2382                 &default_var.upper_margin, &default_var.lower_margin,
2383                 &default_var.hsync_len, &default_var.vsync_len,
2384                 &default_var.sync, &default_var.vmode)) {
2385
2386                 if ((default_var.vmode & FB_VMODE_MASK) ==
2387                     FB_VMODE_INTERLACED) {
2388                         default_var.yres <<= 1;
2389                         default_var.yres_virtual <<= 1;
2390                 } else if ((default_var.vmode & FB_VMODE_MASK) ==
2391                            FB_VMODE_DOUBLE) {
2392                         default_var.pixclock >>= 1;
2393                         default_var.yres >>= 1;
2394                         default_var.yres_virtual >>= 1;
2395                 }
2396
2397         }
2398
2399         fb_info->flags = FBINFO_FLAG_DEFAULT;
2400         fb_info->var = default_var;
2401         fb_info->fix = XGIfb_fix;
2402         fb_info->par = &xgi_video_info;
2403         fb_info->screen_base = xgi_video_info.video_vbase;
2404         fb_info->fbops = &XGIfb_ops;
2405         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2406         fb_info->pseudo_palette = pseudo_palette;
2407
2408         fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2409
2410 #ifdef CONFIG_MTRR
2411         xgi_video_info.mtrr = mtrr_add(xgi_video_info.video_base,
2412                 xgi_video_info.video_size, MTRR_TYPE_WRCOMB, 1);
2413         if (xgi_video_info.mtrr >= 0)
2414                 dev_info(&pdev->dev, "added MTRR\n");
2415 #endif
2416
2417         if (register_framebuffer(fb_info) < 0) {
2418                 ret = -EINVAL;
2419                 goto error_mtrr;
2420         }
2421
2422         pci_set_drvdata(pdev, &xgi_video_info);
2423
2424         dumpVGAReg();
2425
2426         return 0;
2427
2428 error_mtrr:
2429 #ifdef CONFIG_MTRR
2430         if (xgi_video_info.mtrr >= 0)
2431                 mtrr_del(xgi_video_info.mtrr, xgi_video_info.video_base,
2432                         xgi_video_info.video_size);
2433 #endif /* CONFIG_MTRR */
2434 error_1:
2435         iounmap(xgi_video_info.mmio_vbase);
2436         iounmap(xgi_video_info.video_vbase);
2437         release_mem_region(xgi_video_info.mmio_base, xgi_video_info.mmio_size);
2438 error_0:
2439         release_mem_region(xgi_video_info.video_base,
2440                            xgi_video_info.video_size);
2441 error:
2442         vfree(hw_info->pjVirtualRomBase);
2443         framebuffer_release(fb_info);
2444         return ret;
2445 }
2446
2447 /*****************************************************/
2448 /*                PCI DEVICE HANDLING                */
2449 /*****************************************************/
2450
2451 static void __devexit xgifb_remove(struct pci_dev *pdev)
2452 {
2453         struct video_info *xgifb_info = pci_get_drvdata(pdev);
2454         struct fb_info *fb_info = xgifb_info->fb_info;
2455
2456         unregister_framebuffer(fb_info);
2457 #ifdef CONFIG_MTRR
2458         if (xgifb_info->mtrr >= 0)
2459                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2460                         xgifb_info->video_size);
2461 #endif /* CONFIG_MTRR */
2462         iounmap(xgifb_info->mmio_vbase);
2463         iounmap(xgifb_info->video_vbase);
2464         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2465         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2466         vfree(xgifb_info->hw_info.pjVirtualRomBase);
2467         framebuffer_release(fb_info);
2468         pci_set_drvdata(pdev, NULL);
2469 }
2470
2471 static struct pci_driver xgifb_driver = {
2472         .name = "xgifb",
2473         .id_table = xgifb_pci_table,
2474         .probe = xgifb_probe,
2475         .remove = __devexit_p(xgifb_remove)
2476 };
2477
2478 static int __init xgifb_init(void)
2479 {
2480         char *option = NULL;
2481
2482         if (fb_get_options("xgifb", &option))
2483                 return -ENODEV;
2484         XGIfb_setup(option);
2485
2486         return pci_register_driver(&xgifb_driver);
2487 }
2488
2489 module_init(xgifb_init);
2490
2491 /*****************************************************/
2492 /*                      MODULE                       */
2493 /*****************************************************/
2494
2495 #ifdef MODULE
2496
2497 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2498 MODULE_LICENSE("GPL");
2499 MODULE_AUTHOR("XGITECH , Others");
2500
2501 module_param(mode, charp, 0);
2502 module_param(vesa, int, 0);
2503 module_param(filter, int, 0);
2504
2505 MODULE_PARM_DESC(mode,
2506         "\nSelects the desired default display mode in the format XxYxDepth,\n"
2507         "eg. 1024x768x16.\n");
2508
2509 MODULE_PARM_DESC(vesa,
2510         "\nSelects the desired default display mode by VESA mode number, eg.\n"
2511         "0x117.\n");
2512
2513 MODULE_PARM_DESC(filter,
2514                 "\nSelects TV flicker filter type (only for systems with a SiS301 video bridge).\n"
2515                 "(Possible values 0-7, default: [no filter])\n");
2516
2517 static void __exit xgifb_remove_module(void)
2518 {
2519         pci_unregister_driver(&xgifb_driver);
2520         printk(KERN_DEBUG "xgifb: Module unloaded\n");
2521 }
2522
2523 module_exit(xgifb_remove_module);
2524
2525 #endif  /*  /MODULE  */