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
 547         if (xgi_video_info.chip == XG21) {
 548                 if ((xgi_video_info.disp_state & DISPTYPE_DISP2)
 549                                 == DISPTYPE_LCD) {
 550                         xres = XGI21_LCDCapList[0].LVDSHDE;
 551                         yres = XGI21_LCDCapList[0].LVDSVDE;
 552                         if (XGIbios_mode[myindex].xres > xres)
 553                                 return -1;
 554                         if (XGIbios_mode[myindex].yres > yres)
 555                                 return -1;
 556                         if ((XGIbios_mode[myindex].xres < xres) &&
 557                             (XGIbios_mode[myindex].yres < yres)) {
 558                                 if (XGIbios_mode[myindex].bpp > 8)
 559                                         return -1;
 560                         }
 561
 562                 }
 563                 return myindex;
 564
 565         }
 566
 567         /* FIXME: for now, all is valid on XG27 */
 568         if (xgi_video_info.chip == XG27)
 569                 return myindex;
 570
 571         if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 572                 return -1;
 573
 574         switch (xgi_video_info.disp_state & DISPTYPE_DISP2) {
 575         case DISPTYPE_LCD:
 576                 switch (XGIhw_ext.ulCRT2LCDType) {
 577                 case LCD_640x480:
 578                         xres = 640;
 579                         yres = 480;
 580                         break;
 581                 case LCD_800x600:
 582                         xres = 800;
 583                         yres = 600;
 584                         break;
 585                 case LCD_1024x600:
 586                         xres = 1024;
 587                         yres = 600;
 588                         break;
 589                 case LCD_1024x768:
 590                         xres = 1024;
 591                         yres = 768;
 592                         break;
 593                 case LCD_1152x768:
 594                         xres = 1152;
 595                         yres = 768;
 596                         break;
 597                 case LCD_1280x960:
 598                         xres = 1280;
 599                         yres = 960;
 600                         break;
 601                 case LCD_1280x768:
 602                         xres = 1280;
 603                         yres = 768;
 604                         break;
 605                 case LCD_1280x1024:
 606                         xres = 1280;
 607                         yres = 1024;
 608                         break;
 609                 case LCD_1400x1050:
 610                         xres = 1400;
 611                         yres = 1050;
 612                         break;
 613                 case LCD_1600x1200:
 614                         xres = 1600;
 615                         yres = 1200;
 616                         break;
 617                 /* case LCD_320x480: */ /* TW: FSTN */
 618                         /*
 619                         xres =  320;
 620                         yres =  480;
 621                         break;
 622                         */
 623                 default:
 624                         xres = 0;
 625                         yres = 0;
 626                         break;
 627                 }
 628                 if (XGIbios_mode[myindex].xres > xres)
 629                         return -1;
 630                 if (XGIbios_mode[myindex].yres > yres)
 631                         return -1;
 632                 if ((XGIhw_ext.ulExternalChip == 0x01) || /* LVDS */
 633                     (XGIhw_ext.ulExternalChip == 0x05)) { /* LVDS+Chrontel */
 634                         switch (XGIbios_mode[myindex].xres) {
 635                         case 512:
 636                                 if (XGIbios_mode[myindex].yres != 512)
 637                                         return -1;
 638                                 if (XGIhw_ext.ulCRT2LCDType == LCD_1024x600)
 639                                         return -1;
 640                                 break;
 641                         case 640:
 642                                 if ((XGIbios_mode[myindex].yres != 400)
 643                                                 && (XGIbios_mode[myindex].yres
 644                                                                 != 480))
 645                                         return -1;
 646                                 break;
 647                         case 800:
 648                                 if (XGIbios_mode[myindex].yres != 600)
 649                                         return -1;
 650                                 break;
 651                         case 1024:
 652                                 if ((XGIbios_mode[myindex].yres != 600) &&
 653                                     (XGIbios_mode[myindex].yres != 768))
 654                                         return -1;
 655                                 if ((XGIbios_mode[myindex].yres == 600) &&
 656                                     (XGIhw_ext.ulCRT2LCDType != LCD_1024x600))
 657                                         return -1;
 658                                 break;
 659                         case 1152:
 660                                 if ((XGIbios_mode[myindex].yres) != 768)
 661                                         return -1;
 662                                 if (XGIhw_ext.ulCRT2LCDType != LCD_1152x768)
 663                                         return -1;
 664                                 break;
 665                         case 1280:
 666                                 if ((XGIbios_mode[myindex].yres != 768) &&
 667                                     (XGIbios_mode[myindex].yres != 1024))
 668                                         return -1;
 669                                 if ((XGIbios_mode[myindex].yres == 768) &&
 670                                     (XGIhw_ext.ulCRT2LCDType != LCD_1280x768))
 671                                         return -1;
 672                                 break;
 673                         case 1400:
 674                                 if (XGIbios_mode[myindex].yres != 1050)
 675                                         return -1;
 676                                 break;
 677                         case 1600:
 678                                 if (XGIbios_mode[myindex].yres != 1200)
 679                                         return -1;
 680                                 break;
 681                         default:
 682                                 return -1;
 683                         }
 684                 } else {
 685                         switch (XGIbios_mode[myindex].xres) {
 686                         case 512:
 687                                 if (XGIbios_mode[myindex].yres != 512)
 688                                         return -1;
 689                                 break;
 690                         case 640:
 691                                 if ((XGIbios_mode[myindex].yres != 400) &&
 692                                     (XGIbios_mode[myindex].yres != 480))
 693                                         return -1;
 694                                 break;
 695                         case 800:
 696                                 if (XGIbios_mode[myindex].yres != 600)
 697                                         return -1;
 698                                 break;
 699                         case 1024:
 700                                 if (XGIbios_mode[myindex].yres != 768)
 701                                         return -1;
 702                                 break;
 703                         case 1280:
 704                                 if ((XGIbios_mode[myindex].yres != 960) &&
 705                                     (XGIbios_mode[myindex].yres != 1024))
 706                                         return -1;
 707                                 if (XGIbios_mode[myindex].yres == 960) {
 708                                         if (XGIhw_ext.ulCRT2LCDType ==
 709                                             LCD_1400x1050)
 710                                                 return -1;
 711                                 }
 712                                 break;
 713                         case 1400:
 714                                 if (XGIbios_mode[myindex].yres != 1050)
 715                                         return -1;
 716                                 break;
 717                         case 1600:
 718                                 if (XGIbios_mode[myindex].yres != 1200)
 719                                         return -1;
 720                                 break;
 721                         default:
 722                                 return -1;
 723                         }
 724                 }
 725                 break;
 726         case DISPTYPE_TV:
 727                 switch (XGIbios_mode[myindex].xres) {
 728                 case 512:
 729                 case 640:
 730                 case 800:
 731                         break;
 732                 case 720:
 733                         if (xgi_video_info.TV_type == TVMODE_NTSC) {
 734                                 if (XGIbios_mode[myindex].yres != 480)
 735                                         return -1;
 736                         } else if (xgi_video_info.TV_type == TVMODE_PAL) {
 737                                 if (XGIbios_mode[myindex].yres != 576)
 738                                         return -1;
 739                         }
 740                         /*  TW: LVDS/CHRONTEL does not support 720 */
 741                         if (xgi_video_info.hasVB == HASVB_LVDS_CHRONTEL ||
 742                             xgi_video_info.hasVB == HASVB_CHRONTEL) {
 743                                 return -1;
 744                         }
 745                         break;
 746                 case 1024:
 747                         if (xgi_video_info.TV_type == TVMODE_NTSC) {
 748                                 if (XGIbios_mode[myindex].bpp == 32)
 749                                         return -1;
 750                         }
 751                         break;
 752                 default:
 753                         return -1;
 754                 }
 755                 break;
 756         case DISPTYPE_CRT2:
 757                 if (XGIbios_mode[myindex].xres > 1280)
 758                         return -1;
 759                 break;
 760         }
 761         return myindex;
 762
 763 }
 764
 765 static void XGIfb_search_crt2type(const char *name)
 766 {
 767         int i = 0;
 768
 769         if (name == NULL)
 770                 return;
 771
 772         while (XGI_crt2type[i].type_no != -1) {
 773                 if (!strcmp(name, XGI_crt2type[i].name)) {
 774                         XGIfb_crt2type = XGI_crt2type[i].type_no;
 775                         XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
 776                         break;
 777                 }
 778                 i++;
 779         }
 780         if (XGIfb_crt2type < 0)
 781                 printk(KERN_INFO "XGIfb: Invalid CRT2 type: %s\n", name);
 782 }
 783
 784 static u8 XGIfb_search_refresh_rate(unsigned int rate)
 785 {
 786         u16 xres, yres;
 787         int i = 0;
 788
 789         xres = XGIbios_mode[xgifb_mode_idx].xres;
 790         yres = XGIbios_mode[xgifb_mode_idx].yres;
 791
 792         XGIfb_rate_idx = 0;
 793         while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
 794                 if ((XGIfb_vrate[i].xres == xres) &&
 795                     (XGIfb_vrate[i].yres == yres)) {
 796                         if (XGIfb_vrate[i].refresh == rate) {
 797                                 XGIfb_rate_idx = XGIfb_vrate[i].idx;
 798                                 break;
 799                         } else if (XGIfb_vrate[i].refresh > rate) {
 800                                 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
 801                                         DPRINTK("XGIfb: Adjusting rate from %d up to %d\n",
 802                                                 rate, XGIfb_vrate[i].refresh);
 803                                         XGIfb_rate_idx = XGIfb_vrate[i].idx;
 804                                         xgi_video_info.refresh_rate =
 805                                                 XGIfb_vrate[i].refresh;
 806                                 } else if (((rate - XGIfb_vrate[i - 1].refresh)
 807                                                 <= 2) && (XGIfb_vrate[i].idx
 808                                                 != 1)) {
 809                                         DPRINTK("XGIfb: Adjusting rate from %d down to %d\n",
 810                                                 rate, XGIfb_vrate[i-1].refresh);
 811                                         XGIfb_rate_idx = XGIfb_vrate[i - 1].idx;
 812                                         xgi_video_info.refresh_rate =
 813                                                 XGIfb_vrate[i - 1].refresh;
 814                                 }
 815                                 break;
 816                         } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
 817                                 DPRINTK("XGIfb: Adjusting rate from %d down to %d\n",
 818                                         rate, XGIfb_vrate[i].refresh);
 819                                 XGIfb_rate_idx = XGIfb_vrate[i].idx;
 820                                 break;
 821                         }
 822                 }
 823                 i++;
 824         }
 825         if (XGIfb_rate_idx > 0) {
 826                 return XGIfb_rate_idx;
 827         } else {
 828                 printk(KERN_INFO "XGIfb: Unsupported rate %d for %dx%d\n",
 829                        rate, xres, yres);
 830                 return 0;
 831         }
 832 }
 833
 834 static void XGIfb_search_tvstd(const char *name)
 835 {
 836         int i = 0;
 837
 838         if (name == NULL)
 839                 return;
 840
 841         while (XGI_tvtype[i].type_no != -1) {
 842                 if (!strcmp(name, XGI_tvtype[i].name)) {
 843                         XGIfb_tvmode = XGI_tvtype[i].type_no;
 844                         break;
 845                 }
 846                 i++;
 847         }
 848 }
 849
 850 /* ----------- FBDev related routines for all series ----------- */
 851
 852 static void XGIfb_bpp_to_var(struct fb_var_screeninfo *var)
 853 {
 854         switch (var->bits_per_pixel) {
 855         case 8:
 856                 var->red.offset = var->green.offset = var->blue.offset = 0;
 857                 var->red.length = var->green.length = var->blue.length = 6;
 858                 xgi_video_info.video_cmap_len = 256;
 859                 break;
 860         case 16:
 861                 var->red.offset = 11;
 862                 var->red.length = 5;
 863                 var->green.offset = 5;
 864                 var->green.length = 6;
 865                 var->blue.offset = 0;
 866                 var->blue.length = 5;
 867                 var->transp.offset = 0;
 868                 var->transp.length = 0;
 869                 xgi_video_info.video_cmap_len = 16;
 870                 break;
 871         case 32:
 872                 var->red.offset = 16;
 873                 var->red.length = 8;
 874                 var->green.offset = 8;
 875                 var->green.length = 8;
 876                 var->blue.offset = 0;
 877                 var->blue.length = 8;
 878                 var->transp.offset = 24;
 879                 var->transp.length = 8;
 880                 xgi_video_info.video_cmap_len = 16;
 881                 break;
 882         }
 883 }
 884
 885 /* --------------------- SetMode routines ------------------------- */
 886
 887 static void XGIfb_pre_setmode(void)
 888 {
 889         u8 cr30 = 0, cr31 = 0;
 890
 891         cr31 = xgifb_reg_get(XGICR, 0x31);
 892         cr31 &= ~0x60;
 893
 894         switch (xgi_video_info.disp_state & DISPTYPE_DISP2) {
 895         case DISPTYPE_CRT2:
 896                 cr30 = (XGI_VB_OUTPUT_CRT2 | XGI_SIMULTANEOUS_VIEW_ENABLE);
 897                 cr31 |= XGI_DRIVER_MODE;
 898                 break;
 899         case DISPTYPE_LCD:
 900                 cr30 = (XGI_VB_OUTPUT_LCD | XGI_SIMULTANEOUS_VIEW_ENABLE);
 901                 cr31 |= XGI_DRIVER_MODE;
 902                 break;
 903         case DISPTYPE_TV:
 904                 if (xgi_video_info.TV_type == TVMODE_HIVISION)
 905                         cr30 = (XGI_VB_OUTPUT_HIVISION
 906                                         | XGI_SIMULTANEOUS_VIEW_ENABLE);
 907                 else if (xgi_video_info.TV_plug == TVPLUG_SVIDEO)
 908                         cr30 = (XGI_VB_OUTPUT_SVIDEO
 909                                         | XGI_SIMULTANEOUS_VIEW_ENABLE);
 910                 else if (xgi_video_info.TV_plug == TVPLUG_COMPOSITE)
 911                         cr30 = (XGI_VB_OUTPUT_COMPOSITE
 912                                         | XGI_SIMULTANEOUS_VIEW_ENABLE);
 913                 else if (xgi_video_info.TV_plug == TVPLUG_SCART)
 914                         cr30 = (XGI_VB_OUTPUT_SCART
 915                                         | XGI_SIMULTANEOUS_VIEW_ENABLE);
 916                 cr31 |= XGI_DRIVER_MODE;
 917
 918                 if (XGIfb_tvmode == 1 || xgi_video_info.TV_type == TVMODE_PAL)
 919                         cr31 |= 0x01;
 920                 else
 921                         cr31 &= ~0x01;
 922                 break;
 923         default: /* disable CRT2 */
 924                 cr30 = 0x00;
 925                 cr31 |= (XGI_DRIVER_MODE | XGI_VB_OUTPUT_DISABLE);
 926         }
 927
 928         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
 929         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
 930         xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33, (XGIfb_rate_idx & 0x0F));
 931 }
 932
 933 static void XGIfb_post_setmode(void)
 934 {
 935         u8 reg;
 936         unsigned char doit = 1;
 937         /*
 938         xgifb_reg_set(XGISR,IND_XGI_PASSWORD,XGI_PASSWORD);
 939         xgifb_reg_set(XGICR, 0x13, 0x00);
 940         xgifb_reg_and_or(XGISR,0x0E, 0xF0, 0x01);
 941         *test*
 942         */
 943         if (xgi_video_info.video_bpp == 8) {
 944                 /* TW: We can't switch off CRT1 on LVDS/Chrontel
 945                  * in 8bpp Modes */
 946                 if ((xgi_video_info.hasVB == HASVB_LVDS) ||
 947                     (xgi_video_info.hasVB == HASVB_LVDS_CHRONTEL)) {
 948                         doit = 0;
 949                 }
 950                 /* TW: We can't switch off CRT1 on 301B-DH
 951                  * in 8bpp Modes if using LCD */
 952                 if (xgi_video_info.disp_state & DISPTYPE_LCD)
 953                         doit = 0;
 954         }
 955
 956         /* TW: We can't switch off CRT1 if bridge is in slave mode */
 957         if (xgi_video_info.hasVB != HASVB_NONE) {
 958                 reg = xgifb_reg_get(XGIPART1, 0x00);
 959
 960                 if ((reg & 0x50) == 0x10)
 961                         doit = 0;
 962
 963         } else {
 964                 XGIfb_crt1off = 0;
 965         }
 966
 967         reg = xgifb_reg_get(XGICR, 0x17);
 968         if ((XGIfb_crt1off) && (doit))
 969                 reg &= ~0x80;
 970         else
 971                 reg |= 0x80;
 972         xgifb_reg_set(XGICR, 0x17, reg);
 973
 974         xgifb_reg_and(XGISR, IND_XGI_RAMDAC_CONTROL, ~0x04);
 975
 976         if ((xgi_video_info.disp_state & DISPTYPE_TV) && (xgi_video_info.hasVB
 977                         == HASVB_301)) {
 978
 979                 reg = xgifb_reg_get(XGIPART4, 0x01);
 980
 981                 if (reg < 0xB0) { /* Set filter for XGI301 */
 982                         switch (xgi_video_info.video_width) {
 983                         case 320:
 984                                 filter_tb = (xgi_video_info.TV_type ==
 985                                              TVMODE_NTSC) ? 4 : 12;
 986                                 break;
 987                         case 640:
 988                                 filter_tb = (xgi_video_info.TV_type ==
 989                                              TVMODE_NTSC) ? 5 : 13;
 990                                 break;
 991                         case 720:
 992                                 filter_tb = (xgi_video_info.TV_type ==
 993                                              TVMODE_NTSC) ? 6 : 14;
 994                                 break;
 995                         case 800:
 996                                 filter_tb = (xgi_video_info.TV_type ==
 997                                              TVMODE_NTSC) ? 7 : 15;
 998                                 break;
 999                         default:
1000                                 filter = -1;
1001                                 break;
1002                         }
1003                         xgifb_reg_or(XGIPART1, XGIfb_CRT2_write_enable, 0x01);
1004
1005                         if (xgi_video_info.TV_type == TVMODE_NTSC) {
1006
1007                                 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
1008
1009                                 if (xgi_video_info.TV_plug == TVPLUG_SVIDEO) {
1010
1011                                         xgifb_reg_and(XGIPART2, 0x30, 0xdf);
1012
1013                                 } else if (xgi_video_info.TV_plug
1014                                                 == TVPLUG_COMPOSITE) {
1015
1016                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
1017
1018                                         switch (xgi_video_info.video_width) {
1019                                         case 640:
1020                                                 xgifb_reg_set(XGIPART2,
1021                                                               0x35,
1022                                                               0xEB);
1023                                                 xgifb_reg_set(XGIPART2,
1024                                                               0x36,
1025                                                               0x04);
1026                                                 xgifb_reg_set(XGIPART2,
1027                                                               0x37,
1028                                                               0x25);
1029                                                 xgifb_reg_set(XGIPART2,
1030                                                               0x38,
1031                                                               0x18);
1032                                                 break;
1033                                         case 720:
1034                                                 xgifb_reg_set(XGIPART2,
1035                                                               0x35,
1036                                                               0xEE);
1037                                                 xgifb_reg_set(XGIPART2,
1038                                                               0x36,
1039                                                               0x0C);
1040                                                 xgifb_reg_set(XGIPART2,
1041                                                               0x37,
1042                                                               0x22);
1043                                                 xgifb_reg_set(XGIPART2,
1044                                                               0x38,
1045                                                               0x08);
1046                                                 break;
1047                                         case 800:
1048                                                 xgifb_reg_set(XGIPART2,
1049                                                               0x35,
1050                                                               0xEB);
1051                                                 xgifb_reg_set(XGIPART2,
1052                                                               0x36,
1053                                                               0x15);
1054                                                 xgifb_reg_set(XGIPART2,
1055                                                               0x37,
1056                                                               0x25);
1057                                                 xgifb_reg_set(XGIPART2,
1058                                                               0x38,
1059                                                               0xF6);
1060                                                 break;
1061                                         }
1062                                 }
1063
1064                         } else if (xgi_video_info.TV_type == TVMODE_PAL) {
1065
1066                                 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
1067
1068                                 if (xgi_video_info.TV_plug == TVPLUG_SVIDEO) {
1069
1070                                         xgifb_reg_and(XGIPART2, 0x30, 0xDF);
1071
1072                                 } else if (xgi_video_info.TV_plug
1073                                                 == TVPLUG_COMPOSITE) {
1074
1075                                         xgifb_reg_or(XGIPART2, 0x30, 0x20);
1076
1077                                         switch (xgi_video_info.video_width) {
1078                                         case 640:
1079                                                 xgifb_reg_set(XGIPART2,
1080                                                               0x35,
1081                                                               0xF1);
1082                                                 xgifb_reg_set(XGIPART2,
1083                                                               0x36,
1084                                                               0xF7);
1085                                                 xgifb_reg_set(XGIPART2,
1086                                                               0x37,
1087                                                               0x1F);
1088                                                 xgifb_reg_set(XGIPART2,
1089                                                               0x38,
1090                                                               0x32);
1091                                                 break;
1092                                         case 720:
1093                                                 xgifb_reg_set(XGIPART2,
1094                                                               0x35,
1095                                                               0xF3);
1096                                                 xgifb_reg_set(XGIPART2,
1097                                                               0x36,
1098                                                               0x00);
1099                                                 xgifb_reg_set(XGIPART2,
1100                                                               0x37,
1101                                                               0x1D);
1102                                                 xgifb_reg_set(XGIPART2,
1103                                                               0x38,
1104                                                               0x20);
1105                                                 break;
1106                                         case 800:
1107                                                 xgifb_reg_set(XGIPART2,
1108                                                               0x35,
1109                                                               0xFC);
1110                                                 xgifb_reg_set(XGIPART2,
1111                                                               0x36,
1112                                                               0xFB);
1113                                                 xgifb_reg_set(XGIPART2,
1114                                                               0x37,
1115                                                               0x14);
1116                                                 xgifb_reg_set(XGIPART2,
1117                                                               0x38,
1118                                                               0x2A);
1119                                                 break;
1120                                         }
1121                                 }
1122                         }
1123
1124                         if ((filter >= 0) && (filter <= 7)) {
1125                                 DPRINTK("FilterTable[%d]-%d: %02x %02x %02x %02x\n",
1126                                         filter_tb, filter,
1127                                         XGI_TV_filter[filter_tb].
1128                                                 filter[filter][0],
1129                                         XGI_TV_filter[filter_tb].
1130                                                 filter[filter][1],
1131                                         XGI_TV_filter[filter_tb].
1132                                                 filter[filter][2],
1133                                         XGI_TV_filter[filter_tb].
1134                                                 filter[filter][3]
1135                                 );
1136                                 xgifb_reg_set(
1137                                         XGIPART2,
1138                                         0x35,
1139                                         (XGI_TV_filter[filter_tb].
1140                                                 filter[filter][0]));
1141                                 xgifb_reg_set(
1142                                         XGIPART2,
1143                                         0x36,
1144                                         (XGI_TV_filter[filter_tb].
1145                                                 filter[filter][1]));
1146                                 xgifb_reg_set(
1147                                         XGIPART2,
1148                                         0x37,
1149                                         (XGI_TV_filter[filter_tb].
1150                                                 filter[filter][2]));
1151                                 xgifb_reg_set(
1152                                         XGIPART2,
1153                                         0x38,
1154                                         (XGI_TV_filter[filter_tb].
1155                                                 filter[filter][3]));
1156                         }
1157                 }
1158         }
1159 }
1160
1161 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
1162                 struct fb_info *info)
1163 {
1164
1165         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1166                         + var->hsync_len;
1167         unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
1168                         + var->vsync_len;
1169 #if defined(__powerpc__)
1170         u8 sr_data, cr_data;
1171 #endif
1172         unsigned int drate = 0, hrate = 0;
1173         int found_mode = 0;
1174         int old_mode;
1175         /* unsigned char reg, reg1; */
1176
1177         DEBUGPRN("Inside do_set_var");
1178         /* 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); */
1179
1180         info->var.xres_virtual = var->xres_virtual;
1181         info->var.yres_virtual = var->yres_virtual;
1182         info->var.bits_per_pixel = var->bits_per_pixel;
1183
1184         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
1185                 vtotal <<= 1;
1186         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
1187                 vtotal <<= 2;
1188         else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1189                 /* vtotal <<= 1; */
1190                 /* var->yres <<= 1; */
1191         }
1192
1193         if (!htotal || !vtotal) {
1194                 DPRINTK("XGIfb: Invalid 'var' information\n");
1195                 return -EINVAL;
1196         } printk(KERN_DEBUG "XGIfb: var->pixclock=%d, htotal=%d, vtotal=%d\n",
1197                         var->pixclock, htotal, vtotal);
1198
1199         if (var->pixclock && htotal && vtotal) {
1200                 drate = 1000000000 / var->pixclock;
1201                 hrate = (drate * 1000) / htotal;
1202                 xgi_video_info.refresh_rate = (unsigned int) (hrate * 2
1203                                 / vtotal);
1204         } else {
1205                 xgi_video_info.refresh_rate = 60;
1206         }
1207
1208         printk(KERN_DEBUG "XGIfb: Change mode to %dx%dx%d-%dHz\n",
1209                var->xres,
1210                var->yres,
1211                var->bits_per_pixel,
1212                xgi_video_info.refresh_rate);
1213
1214         old_mode = xgifb_mode_idx;
1215         xgifb_mode_idx = 0;
1216
1217         while ((XGIbios_mode[xgifb_mode_idx].mode_no != 0)
1218                         && (XGIbios_mode[xgifb_mode_idx].xres <= var->xres)) {
1219                 if ((XGIbios_mode[xgifb_mode_idx].xres == var->xres)
1220                                 && (XGIbios_mode[xgifb_mode_idx].yres
1221                                                 == var->yres)
1222                                 && (XGIbios_mode[xgifb_mode_idx].bpp
1223                                                 == var->bits_per_pixel)) {
1224                         XGIfb_mode_no = XGIbios_mode[xgifb_mode_idx].mode_no;
1225                         found_mode = 1;
1226                         break;
1227                 }
1228                 xgifb_mode_idx++;
1229         }
1230
1231         if (found_mode)
1232                 xgifb_mode_idx = XGIfb_validate_mode(xgifb_mode_idx);
1233         else
1234                 xgifb_mode_idx = -1;
1235
1236         if (xgifb_mode_idx < 0) {
1237                 printk(KERN_ERR "XGIfb: Mode %dx%dx%d not supported\n",
1238                        var->xres, var->yres, var->bits_per_pixel);
1239                 xgifb_mode_idx = old_mode;
1240                 return -EINVAL;
1241         }
1242
1243         if (XGIfb_search_refresh_rate(xgi_video_info.refresh_rate) == 0) {
1244                 XGIfb_rate_idx = XGIbios_mode[xgifb_mode_idx].rate_idx;
1245                 xgi_video_info.refresh_rate = 60;
1246         }
1247
1248         if (isactive) {
1249
1250                 XGIfb_pre_setmode();
1251                 if (XGISetModeNew(&XGIhw_ext, XGIfb_mode_no) == 0) {
1252                         printk(KERN_ERR "XGIfb: Setting mode[0x%x] failed\n",
1253                                XGIfb_mode_no);
1254                         return -EINVAL;
1255                 }
1256                 info->fix.line_length = ((info->var.xres_virtual
1257                                 * info->var.bits_per_pixel) >> 6);
1258
1259                 xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
1260
1261                 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1262                 xgifb_reg_set(XGISR,
1263                               0x0E,
1264                               (info->fix.line_length & 0xff00) >> 8);
1265
1266                 XGIfb_post_setmode();
1267
1268                 DPRINTK("XGIfb: Set new mode: %dx%dx%d-%d\n",
1269                                 XGIbios_mode[xgifb_mode_idx].xres,
1270                                 XGIbios_mode[xgifb_mode_idx].yres,
1271                                 XGIbios_mode[xgifb_mode_idx].bpp,
1272                                 xgi_video_info.refresh_rate);
1273
1274                 xgi_video_info.video_bpp = XGIbios_mode[xgifb_mode_idx].bpp;
1275                 xgi_video_info.video_vwidth = info->var.xres_virtual;
1276                 xgi_video_info.video_width = XGIbios_mode[xgifb_mode_idx].xres;
1277                 xgi_video_info.video_vheight = info->var.yres_virtual;
1278                 xgi_video_info.video_height = XGIbios_mode[xgifb_mode_idx].yres;
1279                 xgi_video_info.org_x = xgi_video_info.org_y = 0;
1280                 xgi_video_info.video_linelength = info->var.xres_virtual
1281                                 * (xgi_video_info.video_bpp >> 3);
1282                 switch (xgi_video_info.video_bpp) {
1283                 case 8:
1284                         xgi_video_info.DstColor = 0x0000;
1285                         xgi_video_info.XGI310_AccelDepth = 0x00000000;
1286                         xgi_video_info.video_cmap_len = 256;
1287 #if defined(__powerpc__)
1288                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1289                         xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1290 #endif
1291                         break;
1292                 case 16:
1293                         xgi_video_info.DstColor = 0x8000;
1294                         xgi_video_info.XGI310_AccelDepth = 0x00010000;
1295 #if defined(__powerpc__)
1296                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1297                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1298 #endif
1299                         xgi_video_info.video_cmap_len = 16;
1300                         break;
1301                 case 32:
1302                         xgi_video_info.DstColor = 0xC000;
1303                         xgi_video_info.XGI310_AccelDepth = 0x00020000;
1304                         xgi_video_info.video_cmap_len = 16;
1305 #if defined(__powerpc__)
1306                         cr_data = xgifb_reg_get(XGICR, 0x4D);
1307                         xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1308 #endif
1309                         break;
1310                 default:
1311                         xgi_video_info.video_cmap_len = 16;
1312                         printk(KERN_ERR "XGIfb: Unsupported depth %d",
1313                                xgi_video_info.video_bpp);
1314                         break;
1315                 }
1316         }
1317         XGIfb_bpp_to_var(var); /*update ARGB info*/
1318         DEBUGPRN("End of do_set_var");
1319
1320         dumpVGAReg();
1321         return 0;
1322 }
1323
1324 static int XGIfb_pan_var(struct fb_var_screeninfo *var)
1325 {
1326         unsigned int base;
1327
1328         /* printk("Inside pan_var"); */
1329
1330         if (var->xoffset > (var->xres_virtual - var->xres)) {
1331                 /* printk("Pan: xo: %d xv %d xr %d\n",
1332                         var->xoffset, var->xres_virtual, var->xres); */
1333                 return -EINVAL;
1334         }
1335         if (var->yoffset > (var->yres_virtual - var->yres)) {
1336                 /* printk("Pan: yo: %d yv %d yr %d\n",
1337                         var->yoffset, var->yres_virtual, var->yres); */
1338                 return -EINVAL;
1339         }
1340         base = var->yoffset * var->xres_virtual + var->xoffset;
1341
1342         /* calculate base bpp dep. */
1343         switch (var->bits_per_pixel) {
1344         case 16:
1345                 base >>= 1;
1346                 break;
1347         case 32:
1348                 break;
1349         case 8:
1350         default:
1351                 base >>= 2;
1352                 break;
1353         }
1354
1355         xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
1356
1357         xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1358         xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1359         xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1360         xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1361         xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1362
1363         if (xgi_video_info.disp_state & DISPTYPE_DISP2) {
1364                 xgifb_reg_or(XGIPART1, XGIfb_CRT2_write_enable, 0x01);
1365                 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1366                 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1367                 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1368                 xgifb_reg_and_or(XGIPART1,
1369                                  0x02,
1370                                  0x7F,
1371                                  ((base >> 24) & 0x01) << 7);
1372         }
1373         /* printk("End of pan_var"); */
1374         return 0;
1375 }
1376
1377 static int XGIfb_open(struct fb_info *info, int user)
1378 {
1379         return 0;
1380 }
1381
1382 static int XGIfb_release(struct fb_info *info, int user)
1383 {
1384         return 0;
1385 }
1386
1387 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1388 {
1389         int rc = 16;
1390
1391         switch (var->bits_per_pixel) {
1392         case 8:
1393                 rc = 256;
1394                 break;
1395         case 16:
1396                 rc = 16;
1397                 break;
1398         case 32:
1399                 rc = 16;
1400                 break;
1401         }
1402         return rc;
1403 }
1404
1405 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1406                 unsigned blue, unsigned transp, struct fb_info *info)
1407 {
1408         if (regno >= XGIfb_get_cmap_len(&info->var))
1409                 return 1;
1410
1411         switch (info->var.bits_per_pixel) {
1412         case 8:
1413                 outb(regno, XGIDACA);
1414                 outb((red >> 10), XGIDACD);
1415                 outb((green >> 10), XGIDACD);
1416                 outb((blue >> 10), XGIDACD);
1417                 if (xgi_video_info.disp_state & DISPTYPE_DISP2) {
1418                         outb(regno, XGIDAC2A);
1419                         outb((red >> 8), XGIDAC2D);
1420                         outb((green >> 8), XGIDAC2D);
1421                         outb((blue >> 8), XGIDAC2D);
1422                 }
1423                 break;
1424         case 16:
1425                 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1426                                 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1427                                 >> 11);
1428                 break;
1429         case 32:
1430                 red >>= 8;
1431                 green >>= 8;
1432                 blue >>= 8;
1433                 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1434                                 << 8) | (blue);
1435                 break;
1436         }
1437         return 0;
1438 }
1439
1440 /* ----------- FBDev related routines for all series ---------- */
1441
1442 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1443                 struct fb_info *info)
1444 {
1445         DEBUGPRN("inside get_fix");
1446         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1447
1448         fix->smem_start = xgi_video_info.video_base;
1449
1450         fix->smem_len = xgi_video_info.video_size;
1451
1452         fix->type = FB_TYPE_PACKED_PIXELS;
1453         fix->type_aux = 0;
1454         if (xgi_video_info.video_bpp == 8)
1455                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1456         else
1457                 fix->visual = FB_VISUAL_DIRECTCOLOR;
1458         fix->xpanstep = 0;
1459         if (XGIfb_ypan)
1460                 fix->ypanstep = 1;
1461         fix->ywrapstep = 0;
1462         fix->line_length = xgi_video_info.video_linelength;
1463         fix->mmio_start = xgi_video_info.mmio_base;
1464         fix->mmio_len = xgi_video_info.mmio_size;
1465         fix->accel = FB_ACCEL_XGI_XABRE;
1466
1467         DEBUGPRN("end of get_fix");
1468         return 0;
1469 }
1470
1471 static int XGIfb_set_par(struct fb_info *info)
1472 {
1473         int err;
1474
1475         /* printk("XGIfb: inside set_par\n"); */
1476         err = XGIfb_do_set_var(&info->var, 1, info);
1477         if (err)
1478                 return err;
1479         XGIfb_get_fix(&info->fix, -1, info);
1480         /* printk("XGIfb: end of set_par\n"); */
1481         return 0;
1482 }
1483
1484 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1485 {
1486         unsigned int htotal = var->left_margin + var->xres + var->right_margin
1487                         + var->hsync_len;
1488         unsigned int vtotal = 0;
1489         unsigned int drate = 0, hrate = 0;
1490         int found_mode = 0;
1491         int refresh_rate, search_idx;
1492
1493         DEBUGPRN("Inside check_var");
1494
1495         if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1496                 vtotal = var->upper_margin + var->yres + var->lower_margin
1497                                 + var->vsync_len;
1498                 vtotal <<= 1;
1499         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1500                 vtotal = var->upper_margin + var->yres + var->lower_margin
1501                                 + var->vsync_len;
1502                 vtotal <<= 2;
1503         } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1504                 vtotal = var->upper_margin + (var->yres / 2)
1505                                 + var->lower_margin + var->vsync_len;
1506         } else
1507                 vtotal = var->upper_margin + var->yres + var->lower_margin
1508                                 + var->vsync_len;
1509
1510         if (!(htotal) || !(vtotal))
1511                 XGIFAIL("XGIfb: no valid timing data");
1512
1513         if (var->pixclock && htotal && vtotal) {
1514                 drate = 1000000000 / var->pixclock;
1515                 hrate = (drate * 1000) / htotal;
1516                 xgi_video_info.refresh_rate =
1517                         (unsigned int) (hrate * 2 / vtotal);
1518                 printk(KERN_DEBUG
1519                         "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1520                         "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1521                         __func__, var->pixclock, htotal, vtotal,
1522                         __func__, drate, hrate, xgi_video_info.refresh_rate);
1523         } else {
1524                 xgi_video_info.refresh_rate = 60;
1525         }
1526
1527         /*
1528         if ((var->pixclock) && (htotal)) {
1529                 drate = 1E12 / var->pixclock;
1530                 hrate = drate / htotal;
1531                 refresh_rate = (unsigned int) (hrate / vtotal * 2 + 0.5);
1532         } else {
1533                 refresh_rate = 60;
1534         }
1535         */
1536         /* TW: Calculation wrong for 1024x600 - force it to 60Hz */
1537         if ((var->xres == 1024) && (var->yres == 600))
1538                 refresh_rate = 60;
1539
1540         search_idx = 0;
1541         while ((XGIbios_mode[search_idx].mode_no != 0) &&
1542                 (XGIbios_mode[search_idx].xres <= var->xres)) {
1543                 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1544                         (XGIbios_mode[search_idx].yres == var->yres) &&
1545                         (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1546                         if (XGIfb_validate_mode(search_idx) > 0) {
1547                                 found_mode = 1;
1548                                 break;
1549                         }
1550                 }
1551                 search_idx++;
1552         }
1553
1554         if (!found_mode) {
1555
1556                 printk(KERN_ERR "XGIfb: %dx%dx%d is no valid mode\n",
1557                         var->xres, var->yres, var->bits_per_pixel);
1558                 search_idx = 0;
1559                 while (XGIbios_mode[search_idx].mode_no != 0) {
1560                         if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1561                             (var->yres <= XGIbios_mode[search_idx].yres) &&
1562                             (var->bits_per_pixel ==
1563                              XGIbios_mode[search_idx].bpp)) {
1564                                 if (XGIfb_validate_mode(search_idx) > 0) {
1565                                         found_mode = 1;
1566                                         break;
1567                                 }
1568                         }
1569                         search_idx++;
1570                 }
1571                 if (found_mode) {
1572                         var->xres = XGIbios_mode[search_idx].xres;
1573                         var->yres = XGIbios_mode[search_idx].yres;
1574                         printk(KERN_DEBUG "XGIfb: Adapted to mode %dx%dx%d\n",
1575                                 var->xres, var->yres, var->bits_per_pixel);
1576
1577                 } else {
1578                         printk(KERN_ERR "XGIfb: Failed to find similar mode to %dx%dx%d\n",
1579                                 var->xres, var->yres, var->bits_per_pixel);
1580                         return -EINVAL;
1581                 }
1582         }
1583
1584         /* TW: TODO: Check the refresh rate */
1585
1586         /* Adapt RGB settings */
1587         XGIfb_bpp_to_var(var);
1588
1589         /* Sanity check for offsets */
1590         if (var->xoffset < 0)
1591                 var->xoffset = 0;
1592         if (var->yoffset < 0)
1593                 var->yoffset = 0;
1594
1595         if (!XGIfb_ypan) {
1596                 if (var->xres != var->xres_virtual)
1597                         var->xres_virtual = var->xres;
1598                 if (var->yres != var->yres_virtual)
1599                         var->yres_virtual = var->yres;
1600         } /* else { */
1601                 /* TW: Now patch yres_virtual if we use panning */
1602                 /* May I do this? */
1603                 /* var->yres_virtual = xgi_video_info.heapstart /
1604                         (var->xres * (var->bits_per_pixel >> 3)); */
1605                 /* if (var->yres_virtual <= var->yres) { */
1606                 /* TW: Paranoia check */
1607                 /* var->yres_virtual = var->yres; */
1608                 /* } */
1609         /* } */
1610
1611         /* Truncate offsets to maximum if too high */
1612         if (var->xoffset > var->xres_virtual - var->xres)
1613                 var->xoffset = var->xres_virtual - var->xres - 1;
1614
1615         if (var->yoffset > var->yres_virtual - var->yres)
1616                 var->yoffset = var->yres_virtual - var->yres - 1;
1617
1618         /* Set everything else to 0 */
1619         var->red.msb_right =
1620         var->green.msb_right =
1621         var->blue.msb_right =
1622         var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1623
1624         DEBUGPRN("end of check_var");
1625         return 0;
1626 }
1627
1628 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1629                 struct fb_info *info)
1630 {
1631         int err;
1632
1633         /* printk("\nInside pan_display:\n"); */
1634
1635         if (var->xoffset > (var->xres_virtual - var->xres))
1636                 return -EINVAL;
1637         if (var->yoffset > (var->yres_virtual - var->yres))
1638                 return -EINVAL;
1639
1640         if (var->vmode & FB_VMODE_YWRAP) {
1641                 if (var->yoffset < 0 || var->yoffset >= info->var.yres_virtual
1642                                 || var->xoffset)
1643                         return -EINVAL;
1644         } else {
1645                 if (var->xoffset + info->var.xres > info->var.xres_virtual
1646                                 || var->yoffset + info->var.yres
1647                                                 > info->var.yres_virtual)
1648                         return -EINVAL;
1649         }
1650         err = XGIfb_pan_var(var);
1651         if (err < 0)
1652                 return err;
1653
1654         info->var.xoffset = var->xoffset;
1655         info->var.yoffset = var->yoffset;
1656         if (var->vmode & FB_VMODE_YWRAP)
1657                 info->var.vmode |= FB_VMODE_YWRAP;
1658         else
1659                 info->var.vmode &= ~FB_VMODE_YWRAP;
1660
1661         /* printk("End of pan_display\n"); */
1662         return 0;
1663 }
1664
1665 static int XGIfb_blank(int blank, struct fb_info *info)
1666 {
1667         u8 reg;
1668
1669         reg = xgifb_reg_get(XGICR, 0x17);
1670
1671         if (blank > 0)
1672                 reg &= 0x7f;
1673         else
1674                 reg |= 0x80;
1675
1676         xgifb_reg_set(XGICR, 0x17, reg);
1677         xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1678         xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1679         return 0;
1680 }
1681
1682 static struct fb_ops XGIfb_ops = {
1683         .owner = THIS_MODULE,
1684         .fb_open = XGIfb_open,
1685         .fb_release = XGIfb_release,
1686         .fb_check_var = XGIfb_check_var,
1687         .fb_set_par = XGIfb_set_par,
1688         .fb_setcolreg = XGIfb_setcolreg,
1689         .fb_pan_display = XGIfb_pan_display,
1690         .fb_blank = XGIfb_blank,
1691         .fb_fillrect = cfb_fillrect,
1692         .fb_copyarea = cfb_copyarea,
1693         .fb_imageblit = cfb_imageblit,
1694         /* .fb_mmap = XGIfb_mmap, */
1695 };
1696
1697 /* ---------------- Chip generation dependent routines ---------------- */
1698
1699 /* for XGI 315/550/650/740/330 */
1700
1701 static int XGIfb_get_dram_size(void)
1702 {
1703
1704         u8 ChannelNum, tmp;
1705         u8 reg = 0;
1706
1707         /* xorg driver sets 32MB * 1 channel */
1708         if (xgi_video_info.chip == XG27)
1709                 xgifb_reg_set(XGISR, IND_XGI_DRAM_SIZE, 0x51);
1710
1711         reg = xgifb_reg_get(XGISR, IND_XGI_DRAM_SIZE);
1712         switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1713         case XGI_DRAM_SIZE_1MB:
1714                 xgi_video_info.video_size = 0x100000;
1715                 break;
1716         case XGI_DRAM_SIZE_2MB:
1717                 xgi_video_info.video_size = 0x200000;
1718                 break;
1719         case XGI_DRAM_SIZE_4MB:
1720                 xgi_video_info.video_size = 0x400000;
1721                 break;
1722         case XGI_DRAM_SIZE_8MB:
1723                 xgi_video_info.video_size = 0x800000;
1724                 break;
1725         case XGI_DRAM_SIZE_16MB:
1726                 xgi_video_info.video_size = 0x1000000;
1727                 break;
1728         case XGI_DRAM_SIZE_32MB:
1729                 xgi_video_info.video_size = 0x2000000;
1730                 break;
1731         case XGI_DRAM_SIZE_64MB:
1732                 xgi_video_info.video_size = 0x4000000;
1733                 break;
1734         case XGI_DRAM_SIZE_128MB:
1735                 xgi_video_info.video_size = 0x8000000;
1736                 break;
1737         case XGI_DRAM_SIZE_256MB:
1738                 xgi_video_info.video_size = 0x10000000;
1739                 break;
1740         default:
1741                 return -1;
1742         }
1743
1744         tmp = (reg & 0x0c) >> 2;
1745         switch (xgi_video_info.chip) {
1746         case XG20:
1747         case XG21:
1748         case XG27:
1749                 ChannelNum = 1;
1750                 break;
1751
1752         case XG42:
1753                 if (reg & 0x04)
1754                         ChannelNum = 2;
1755                 else
1756                         ChannelNum = 1;
1757                 break;
1758
1759         case XG45:
1760                 if (tmp == 1)
1761                         ChannelNum = 2;
1762                 else if (tmp == 2)
1763                         ChannelNum = 3;
1764                 else if (tmp == 3)
1765                         ChannelNum = 4;
1766                 else
1767                         ChannelNum = 1;
1768                 break;
1769
1770         case XG40:
1771         default:
1772                 if (tmp == 2)
1773                         ChannelNum = 2;
1774                 else if (tmp == 3)
1775                         ChannelNum = 3;
1776                 else
1777                         ChannelNum = 1;
1778                 break;
1779         }
1780
1781         xgi_video_info.video_size = xgi_video_info.video_size * ChannelNum;
1782         /* PLiad fixed for benchmarking and fb set */
1783         /* xgi_video_info.video_size = 0x200000; */ /* 1024x768x16 */
1784         /* xgi_video_info.video_size = 0x1000000; */ /* benchmark */
1785
1786         printk("XGIfb: SR14=%x DramSzie %x ChannelNum %x\n",
1787                reg,
1788                xgi_video_info.video_size, ChannelNum);
1789         return 0;
1790
1791 }
1792
1793 static void XGIfb_detect_VB(void)
1794 {
1795         u8 cr32, temp = 0;
1796
1797         xgi_video_info.TV_plug = xgi_video_info.TV_type = 0;
1798
1799         switch (xgi_video_info.hasVB) {
1800         case HASVB_LVDS_CHRONTEL:
1801         case HASVB_CHRONTEL:
1802                 break;
1803         case HASVB_301:
1804         case HASVB_302:
1805                 /* XGI_Sense30x(); */ /* Yi-Lin TV Sense? */
1806                 break;
1807         }
1808
1809         cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1810
1811         if ((cr32 & XGI_CRT1) && !XGIfb_crt1off)
1812                 XGIfb_crt1off = 0;
1813         else {
1814                 if (cr32 & 0x5F)
1815                         XGIfb_crt1off = 1;
1816                 else
1817                         XGIfb_crt1off = 0;
1818         }
1819
1820         if (XGIfb_crt2type != -1)
1821                 /* TW: Override with option */
1822                 xgi_video_info.disp_state = XGIfb_crt2type;
1823         else if (cr32 & XGI_VB_TV)
1824                 xgi_video_info.disp_state = DISPTYPE_TV;
1825         else if (cr32 & XGI_VB_LCD)
1826                 xgi_video_info.disp_state = DISPTYPE_LCD;
1827         else if (cr32 & XGI_VB_CRT2)
1828                 xgi_video_info.disp_state = DISPTYPE_CRT2;
1829         else
1830                 xgi_video_info.disp_state = 0;
1831
1832         if (XGIfb_tvplug != -1)
1833                 /* PR/TW: Override with option */
1834                 xgi_video_info.TV_plug = XGIfb_tvplug;
1835         else if (cr32 & XGI_VB_HIVISION) {
1836                 xgi_video_info.TV_type = TVMODE_HIVISION;
1837                 xgi_video_info.TV_plug = TVPLUG_SVIDEO;
1838         } else if (cr32 & XGI_VB_SVIDEO)
1839                 xgi_video_info.TV_plug = TVPLUG_SVIDEO;
1840         else if (cr32 & XGI_VB_COMPOSITE)
1841                 xgi_video_info.TV_plug = TVPLUG_COMPOSITE;
1842         else if (cr32 & XGI_VB_SCART)
1843                 xgi_video_info.TV_plug = TVPLUG_SCART;
1844
1845         if (xgi_video_info.TV_type == 0) {
1846                 temp = xgifb_reg_get(XGICR, 0x38);
1847                 if (temp & 0x10)
1848                         xgi_video_info.TV_type = TVMODE_PAL;
1849                 else
1850                         xgi_video_info.TV_type = TVMODE_NTSC;
1851         }
1852
1853         /* TW: Copy forceCRT1 option to CRT1off if option is given */
1854         if (XGIfb_forcecrt1 != -1) {
1855                 if (XGIfb_forcecrt1)
1856                         XGIfb_crt1off = 0;
1857                 else
1858                         XGIfb_crt1off = 1;
1859         }
1860 }
1861
1862 static int XGIfb_has_VB(void)
1863 {
1864         u8 vb_chipid;
1865
1866         vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1867         switch (vb_chipid) {
1868         case 0x01:
1869                 xgi_video_info.hasVB = HASVB_301;
1870                 break;
1871         case 0x02:
1872                 xgi_video_info.hasVB = HASVB_302;
1873                 break;
1874         default:
1875                 xgi_video_info.hasVB = HASVB_NONE;
1876                 return 0;
1877         }
1878         return 1;
1879 }
1880
1881 static void XGIfb_get_VB_type(void)
1882 {
1883         u8 reg;
1884
1885         if (!XGIfb_has_VB()) {
1886                 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1887                 switch ((reg & XGI_EXTERNAL_CHIP_MASK) >> 1) {
1888                 case XGI310_EXTERNAL_CHIP_LVDS:
1889                         xgi_video_info.hasVB = HASVB_LVDS;
1890                         break;
1891                 case XGI310_EXTERNAL_CHIP_LVDS_CHRONTEL:
1892                         xgi_video_info.hasVB = HASVB_LVDS_CHRONTEL;
1893                         break;
1894                 default:
1895                         break;
1896                 }
1897         }
1898 }
1899
1900 static int __init xgifb_optval(char *fullopt, int validx)
1901 {
1902         unsigned long lres;
1903
1904         if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1905                 pr_err("xgifb: invalid value for option: %s\n", fullopt);
1906                 return 0;
1907         }
1908         return lres;
1909 }
1910
1911 static int __init XGIfb_setup(char *options)
1912 {
1913         char *this_opt;
1914
1915         if (!options || !*options)
1916                 return 0;
1917
1918         pr_info("xgifb: options: %s\n", options);
1919
1920         while ((this_opt = strsep(&options, ",")) != NULL) {
1921
1922                 if (!*this_opt)
1923                         continue;
1924
1925                 if (!strncmp(this_opt, "mode:", 5)) {
1926                         mode = this_opt + 5;
1927                 } else if (!strncmp(this_opt, "vesa:", 5)) {
1928                         vesa = xgifb_optval(this_opt, 5);
1929                 } else if (!strncmp(this_opt, "vrate:", 6)) {
1930                         xgi_video_info.refresh_rate = xgifb_optval(this_opt, 6);
1931                 } else if (!strncmp(this_opt, "rate:", 5)) {
1932                         xgi_video_info.refresh_rate = xgifb_optval(this_opt, 5);
1933                 } else if (!strncmp(this_opt, "crt1off", 7)) {
1934                         XGIfb_crt1off = 1;
1935                 } else if (!strncmp(this_opt, "filter:", 7)) {
1936                         filter = xgifb_optval(this_opt, 7);
1937                 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1938                         XGIfb_search_crt2type(this_opt + 14);
1939                 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1940                         XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1941                 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1942                         XGIfb_search_tvstd(this_opt + 7);
1943                 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1944                         XGIfb_search_tvstd(this_opt + 7);
1945                 } else if (!strncmp(this_opt, "dstn", 4)) {
1946                         enable_dstn = 1;
1947                         /* TW: DSTN overrules forcecrt2type */
1948                         XGIfb_crt2type = DISPTYPE_LCD;
1949                 } else if (!strncmp(this_opt, "noypan", 6)) {
1950                         XGIfb_ypan = 0;
1951                 } else if (!strncmp(this_opt, "userom:", 7)) {
1952                         XGIfb_userom = xgifb_optval(this_opt, 7);
1953                 } else {
1954                         mode = this_opt;
1955                 }
1956         }
1957         return 0;
1958 }
1959
1960 static unsigned char *xgifb_copy_rom(struct pci_dev *dev)
1961 {
1962         void __iomem *rom_address;
1963         unsigned char *rom_copy;
1964         size_t rom_size;
1965
1966         rom_address = pci_map_rom(dev, &rom_size);
1967         if (rom_address == NULL)
1968                 return NULL;
1969
1970         rom_copy = vzalloc(XGIFB_ROM_SIZE);
1971         if (rom_copy == NULL)
1972                 goto done;
1973
1974         rom_size = min_t(size_t, rom_size, XGIFB_ROM_SIZE);
1975         memcpy_fromio(rom_copy, rom_address, rom_size);
1976
1977 done:
1978         pci_unmap_rom(dev, rom_address);
1979         return rom_copy;
1980 }
1981
1982 static int __devinit xgifb_probe(struct pci_dev *pdev,
1983                 const struct pci_device_id *ent)
1984 {
1985         u8 reg, reg1;
1986         u8 CR48, CR38;
1987         int ret;
1988         bool xgi21_drvlcdcaplist = false;
1989         struct fb_info *fb_info;
1990
1991         memset(&XGIhw_ext, 0, sizeof(struct xgi_hw_device_info));
1992         fb_info = framebuffer_alloc(sizeof(struct fb_info), &pdev->dev);
1993         if (!fb_info)
1994                 return -ENOMEM;
1995
1996         xgi_video_info.fb_info = fb_info;
1997         xgi_video_info.chip_id = pdev->device;
1998         pci_read_config_byte(pdev,
1999                              PCI_REVISION_ID,
2000                              &xgi_video_info.revision_id);
2001         XGIhw_ext.jChipRevision = xgi_video_info.revision_id;
2002
2003         xgi_video_info.pcibus = pdev->bus->number;
2004         xgi_video_info.pcislot = PCI_SLOT(pdev->devfn);
2005         xgi_video_info.pcifunc = PCI_FUNC(pdev->devfn);
2006         xgi_video_info.subsysvendor = pdev->subsystem_vendor;
2007         xgi_video_info.subsysdevice = pdev->subsystem_device;
2008
2009         xgi_video_info.video_base = pci_resource_start(pdev, 0);
2010         xgi_video_info.mmio_base = pci_resource_start(pdev, 1);
2011         xgi_video_info.mmio_size = pci_resource_len(pdev, 1);
2012         xgi_video_info.vga_base = pci_resource_start(pdev, 2) + 0x30;
2013         XGIhw_ext.pjIOAddress = (unsigned char *)xgi_video_info.vga_base;
2014         /* XGI_Pr.RelIO  = ioremap(pci_resource_start(pdev, 2), 128) + 0x30; */
2015         printk("XGIfb: Relocate IO address: %lx [%08lx]\n",
2016                (unsigned long)pci_resource_start(pdev, 2), XGI_Pr.RelIO);
2017
2018         if (pci_enable_device(pdev)) {
2019                 ret = -EIO;
2020                 goto error;
2021         }
2022
2023         XGIRegInit(&XGI_Pr, (unsigned long)XGIhw_ext.pjIOAddress);
2024
2025         xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
2026         reg1 = xgifb_reg_get(XGISR, IND_XGI_PASSWORD);
2027
2028         if (reg1 != 0xa1) { /*I/O error */
2029                 printk("\nXGIfb: I/O error!!!");
2030                 ret = -EIO;
2031                 goto error;
2032         }
2033
2034         switch (xgi_video_info.chip_id) {
2035         case PCI_DEVICE_ID_XG_20:
2036                 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
2037                 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
2038                 if (CR48&GPIOG_READ)
2039                         xgi_video_info.chip = XG21;
2040                 else
2041                         xgi_video_info.chip = XG20;
2042                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2043                 break;
2044         case PCI_DEVICE_ID_XG_40:
2045                 xgi_video_info.chip = XG40;
2046                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2047                 break;
2048         case PCI_DEVICE_ID_XG_41:
2049                 xgi_video_info.chip = XG41;
2050                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2051                 break;
2052         case PCI_DEVICE_ID_XG_42:
2053                 xgi_video_info.chip = XG42;
2054                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2055                 break;
2056         case PCI_DEVICE_ID_XG_27:
2057                 xgi_video_info.chip = XG27;
2058                 XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
2059                 break;
2060         default:
2061                 ret = -ENODEV;
2062                 goto error;
2063         }
2064
2065         printk("XGIfb:chipid = %x\n", xgi_video_info.chip);
2066         XGIhw_ext.jChipType = xgi_video_info.chip;
2067
2068         if ((xgi_video_info.chip == XG21) || (XGIfb_userom)) {
2069                 XGIhw_ext.pjVirtualRomBase = xgifb_copy_rom(pdev);
2070                 if (XGIhw_ext.pjVirtualRomBase)
2071                         printk(KERN_INFO "XGIfb: Video ROM found and mapped to %p\n",
2072                                XGIhw_ext.pjVirtualRomBase);
2073                 else
2074                         printk(KERN_INFO "XGIfb: Video ROM not found\n");
2075         } else {
2076                 XGIhw_ext.pjVirtualRomBase = NULL;
2077                 printk(KERN_INFO "XGIfb: Video ROM usage disabled\n");
2078         }
2079         XGIhw_ext.pQueryVGAConfigSpace = &XGIfb_query_VGA_config_space;
2080
2081         if (XGIfb_get_dram_size()) {
2082                 printk(KERN_INFO "XGIfb: Fatal error: Unable to determine RAM size.\n");
2083                 ret = -ENODEV;
2084                 goto error;
2085         }
2086
2087         /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
2088         xgifb_reg_or(XGISR,
2089                      IND_XGI_PCI_ADDRESS_SET,
2090                      (XGI_PCI_ADDR_ENABLE | XGI_MEM_MAP_IO_ENABLE));
2091         /* Enable 2D accelerator engine */
2092         xgifb_reg_or(XGISR, IND_XGI_MODULE_ENABLE, XGI_ENABLE_2D);
2093
2094         XGIhw_ext.ulVideoMemorySize = xgi_video_info.video_size;
2095
2096         if (!request_mem_region(xgi_video_info.video_base,
2097                                 xgi_video_info.video_size,
2098                                 "XGIfb FB")) {
2099                 printk("unable request memory size %x",
2100                        xgi_video_info.video_size);
2101                 printk(KERN_ERR "XGIfb: Fatal error: Unable to reserve frame buffer memory\n");
2102                 printk(KERN_ERR "XGIfb: Is there another framebuffer driver active?\n");
2103                 ret = -ENODEV;
2104                 goto error;
2105         }
2106
2107         if (!request_mem_region(xgi_video_info.mmio_base,
2108                                 xgi_video_info.mmio_size,
2109                                 "XGIfb MMIO")) {
2110                 printk(KERN_ERR "XGIfb: Fatal error: Unable to reserve MMIO region\n");
2111                 ret = -ENODEV;
2112                 goto error_0;
2113         }
2114
2115         xgi_video_info.video_vbase = XGIhw_ext.pjVideoMemoryAddress =
2116         ioremap(xgi_video_info.video_base, xgi_video_info.video_size);
2117         xgi_video_info.mmio_vbase = ioremap(xgi_video_info.mmio_base,
2118                                             xgi_video_info.mmio_size);
2119
2120         printk(KERN_INFO "XGIfb: Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n",
2121                xgi_video_info.video_base,
2122                xgi_video_info.video_vbase,
2123                xgi_video_info.video_size / 1024);
2124
2125         printk(KERN_INFO "XGIfb: MMIO at 0x%lx, mapped to 0x%p, size %ldk\n",
2126                xgi_video_info.mmio_base, xgi_video_info.mmio_vbase,
2127                xgi_video_info.mmio_size / 1024);
2128         printk("XGIfb: XGIInitNew() ...");
2129         if (XGIInitNew(&XGIhw_ext))
2130                 printk("OK\n");
2131         else
2132                 printk("Fail\n");
2133
2134         xgi_video_info.mtrr = (unsigned int) 0;
2135
2136         xgi_video_info.hasVB = HASVB_NONE;
2137         if ((xgi_video_info.chip == XG20) ||
2138             (xgi_video_info.chip == XG27)) {
2139                 xgi_video_info.hasVB = HASVB_NONE;
2140         } else if (xgi_video_info.chip == XG21) {
2141                 CR38 = xgifb_reg_get(XGICR, 0x38);
2142                 if ((CR38&0xE0) == 0xC0) {
2143                         xgi_video_info.disp_state = DISPTYPE_LCD;
2144                         if (!XGIfb_GetXG21LVDSData())
2145                                 xgi21_drvlcdcaplist = true;
2146                 } else if ((CR38&0xE0) == 0x60) {
2147                         xgi_video_info.hasVB = HASVB_CHRONTEL;
2148                 } else {
2149                         xgi_video_info.hasVB = HASVB_NONE;
2150                 }
2151         } else {
2152                 XGIfb_get_VB_type();
2153         }
2154
2155         XGIhw_ext.ujVBChipID = VB_CHIP_UNKNOWN;
2156
2157         XGIhw_ext.ulExternalChip = 0;
2158
2159         switch (xgi_video_info.hasVB) {
2160         case HASVB_301:
2161                 reg = xgifb_reg_get(XGIPART4, 0x01);
2162                 if (reg >= 0xE0) {
2163                         XGIhw_ext.ujVBChipID = VB_CHIP_302LV;
2164                         printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
2165                 } else if (reg >= 0xD0) {
2166                         XGIhw_ext.ujVBChipID = VB_CHIP_301LV;
2167                         printk(KERN_INFO "XGIfb: XGI301LV bridge detected (revision 0x%02x)\n", reg);
2168                 }
2169                 /* else if (reg >= 0xB0) {
2170                         XGIhw_ext.ujVBChipID = VB_CHIP_301B;
2171                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
2172                         printk("XGIfb: XGI301B bridge detected\n");
2173                 } */
2174                 else {
2175                         XGIhw_ext.ujVBChipID = VB_CHIP_301;
2176                         printk("XGIfb: XGI301 bridge detected\n");
2177                 }
2178                 break;
2179         case HASVB_302:
2180                 reg = xgifb_reg_get(XGIPART4, 0x01);
2181                 if (reg >= 0xE0) {
2182                         XGIhw_ext.ujVBChipID = VB_CHIP_302LV;
2183                         printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
2184                 } else if (reg >= 0xD0) {
2185                         XGIhw_ext.ujVBChipID = VB_CHIP_301LV;
2186                         printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
2187                 } else if (reg >= 0xB0) {
2188                         reg1 = xgifb_reg_get(XGIPART4, 0x23);
2189
2190                         XGIhw_ext.ujVBChipID = VB_CHIP_302B;
2191
2192                 } else {
2193                         XGIhw_ext.ujVBChipID = VB_CHIP_302;
2194                         printk(KERN_INFO "XGIfb: XGI302 bridge detected\n");
2195                 }
2196                 break;
2197         case HASVB_LVDS:
2198                 XGIhw_ext.ulExternalChip = 0x1;
2199                 printk(KERN_INFO "XGIfb: LVDS transmitter detected\n");
2200                 break;
2201         case HASVB_TRUMPION:
2202                 XGIhw_ext.ulExternalChip = 0x2;
2203                 printk(KERN_INFO "XGIfb: Trumpion Zurac LVDS scaler detected\n");
2204                 break;
2205         case HASVB_CHRONTEL:
2206                 XGIhw_ext.ulExternalChip = 0x4;
2207                 printk(KERN_INFO "XGIfb: Chrontel TV encoder detected\n");
2208                 break;
2209         case HASVB_LVDS_CHRONTEL:
2210                 XGIhw_ext.ulExternalChip = 0x5;
2211                 printk(KERN_INFO "XGIfb: LVDS transmitter and Chrontel TV encoder detected\n");
2212                 break;
2213         default:
2214                 printk(KERN_INFO "XGIfb: No or unknown bridge type detected\n");
2215                 break;
2216         }
2217
2218         if (xgi_video_info.hasVB != HASVB_NONE)
2219                 XGIfb_detect_VB();
2220
2221         if (xgi_video_info.disp_state & DISPTYPE_DISP2) {
2222                 if (XGIfb_crt1off)
2223                         xgi_video_info.disp_state |= DISPMODE_SINGLE;
2224                 else
2225                         xgi_video_info.disp_state |= (DISPMODE_MIRROR |
2226                                                       DISPTYPE_CRT1);
2227         } else {
2228                 xgi_video_info.disp_state = DISPMODE_SINGLE |
2229                                             DISPTYPE_CRT1;
2230         }
2231
2232         if (xgi_video_info.disp_state & DISPTYPE_LCD) {
2233                 if (!enable_dstn) {
2234                         reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
2235                         reg &= 0x0f;
2236                         XGIhw_ext.ulCRT2LCDType = XGI310paneltype[reg];
2237
2238                 } else {
2239                         /* TW: FSTN/DSTN */
2240                         XGIhw_ext.ulCRT2LCDType = LCD_320x480;
2241                 }
2242         }
2243
2244         if ((XGIhw_ext.ujVBChipID == VB_CHIP_302B) ||
2245                         (XGIhw_ext.ujVBChipID == VB_CHIP_301LV) ||
2246                         (XGIhw_ext.ujVBChipID == VB_CHIP_302LV)) {
2247                 int tmp;
2248                 tmp = xgifb_reg_get(XGICR, 0x34);
2249                 if (tmp <= 0x13) {
2250                         /* Currently on LCDA?
2251                          *(Some BIOSes leave CR38) */
2252                         tmp = xgifb_reg_get(XGICR, 0x38);
2253                         if ((tmp & 0x03) == 0x03) {
2254                                 /* XGI_Pr.XGI_UseLCDA = 1; */
2255                         } else {
2256                                 /* Currently on LCDA?
2257                                  *(Some newer BIOSes set D0 in CR35) */
2258                                 tmp = xgifb_reg_get(XGICR, 0x35);
2259                                 if (tmp & 0x01) {
2260                                         /* XGI_Pr.XGI_UseLCDA = 1; */
2261                                 } else {
2262                                         tmp = xgifb_reg_get(XGICR,
2263                                                             0x30);
2264                                         if (tmp & 0x20) {
2265                                                 tmp = xgifb_reg_get(
2266                                                         XGIPART1, 0x13);
2267                                                 if (tmp & 0x04) {
2268                                                         /* XGI_Pr.XGI_UseLCDA = 1; */
2269                                                 }
2270                                         }
2271                                 }
2272                         }
2273                 }
2274
2275         }
2276
2277         if (mode)
2278                 XGIfb_search_mode(mode);
2279         else if (vesa != -1)
2280                 XGIfb_search_vesamode(vesa);
2281
2282         if (xgifb_mode_idx >= 0)
2283                 xgifb_mode_idx = XGIfb_validate_mode(xgifb_mode_idx);
2284
2285         if (xgifb_mode_idx < 0) {
2286                 if ((xgi_video_info.disp_state & DISPTYPE_DISP2) ==
2287                         DISPTYPE_LCD &&
2288                     xgi_video_info.chip == XG21)
2289                         xgifb_mode_idx = XGIfb_GetXG21DefaultLVDSModeIdx();
2290                 else
2291                         xgifb_mode_idx = DEFAULT_MODE;
2292         }
2293
2294         if (xgifb_mode_idx < 0) {
2295                 dev_err(&pdev->dev, "no supported video mode found\n");
2296                 goto error_1;
2297         }
2298
2299         if (xgi21_drvlcdcaplist) {
2300                 int m;
2301
2302                 for (m = 0; m < ARRAY_SIZE(XGI21_LCDCapList); m++)
2303                         if ((XGI21_LCDCapList[m].LVDSHDE ==
2304                                 XGIbios_mode[xgifb_mode_idx].xres) &&
2305                             (XGI21_LCDCapList[m].LVDSVDE ==
2306                                 XGIbios_mode[xgifb_mode_idx].yres)) {
2307                                 xgifb_reg_set(XGI_Pr.P3d4, 0x36, m);
2308                                 break;
2309                         }
2310         }
2311
2312         XGIfb_mode_no = XGIbios_mode[xgifb_mode_idx].mode_no;
2313
2314         /* yilin set default refresh rate */
2315         if (xgi_video_info.refresh_rate == 0)
2316                 xgi_video_info.refresh_rate = 60;
2317         if (XGIfb_search_refresh_rate(
2318                         xgi_video_info.refresh_rate) == 0) {
2319                 XGIfb_rate_idx = XGIbios_mode[xgifb_mode_idx].rate_idx;
2320                 xgi_video_info.refresh_rate = 60;
2321         }
2322
2323         xgi_video_info.video_bpp = XGIbios_mode[xgifb_mode_idx].bpp;
2324         xgi_video_info.video_vwidth =
2325                 xgi_video_info.video_width =
2326                         XGIbios_mode[xgifb_mode_idx].xres;
2327         xgi_video_info.video_vheight =
2328                 xgi_video_info.video_height =
2329                         XGIbios_mode[xgifb_mode_idx].yres;
2330         xgi_video_info.org_x = xgi_video_info.org_y = 0;
2331         xgi_video_info.video_linelength =
2332                 xgi_video_info.video_width *
2333                 (xgi_video_info.video_bpp >> 3);
2334         switch (xgi_video_info.video_bpp) {
2335         case 8:
2336                 xgi_video_info.DstColor = 0x0000;
2337                 xgi_video_info.XGI310_AccelDepth = 0x00000000;
2338                 xgi_video_info.video_cmap_len = 256;
2339                 break;
2340         case 16:
2341                 xgi_video_info.DstColor = 0x8000;
2342                 xgi_video_info.XGI310_AccelDepth = 0x00010000;
2343                 xgi_video_info.video_cmap_len = 16;
2344                 break;
2345         case 32:
2346                 xgi_video_info.DstColor = 0xC000;
2347                 xgi_video_info.XGI310_AccelDepth = 0x00020000;
2348                 xgi_video_info.video_cmap_len = 16;
2349                 break;
2350         default:
2351                 xgi_video_info.video_cmap_len = 16;
2352                 printk(KERN_INFO "XGIfb: Unsupported depth %d",
2353                        xgi_video_info.video_bpp);
2354                 break;
2355         }
2356
2357         printk(KERN_INFO "XGIfb: Default mode is %dx%dx%d (%dHz)\n",
2358                xgi_video_info.video_width,
2359                xgi_video_info.video_height,
2360                xgi_video_info.video_bpp,
2361                xgi_video_info.refresh_rate);
2362
2363         default_var.xres =
2364                 default_var.xres_virtual =
2365                         xgi_video_info.video_width;
2366         default_var.yres =
2367                 default_var.yres_virtual =
2368                         xgi_video_info.video_height;
2369         default_var.bits_per_pixel = xgi_video_info.video_bpp;
2370
2371         XGIfb_bpp_to_var(&default_var);
2372
2373         default_var.pixclock = (u32) (1000000000 /
2374                         XGIfb_mode_rate_to_dclock(&XGI_Pr, &XGIhw_ext,
2375                                         XGIfb_mode_no, XGIfb_rate_idx));
2376
2377         if (XGIfb_mode_rate_to_ddata(&XGI_Pr, &XGIhw_ext,
2378                 XGIfb_mode_no, XGIfb_rate_idx,
2379                 &default_var.left_margin, &default_var.right_margin,
2380                 &default_var.upper_margin, &default_var.lower_margin,
2381                 &default_var.hsync_len, &default_var.vsync_len,
2382                 &default_var.sync, &default_var.vmode)) {
2383
2384                 if ((default_var.vmode & FB_VMODE_MASK) ==
2385                     FB_VMODE_INTERLACED) {
2386                         default_var.yres <<= 1;
2387                         default_var.yres_virtual <<= 1;
2388                 } else if ((default_var.vmode & FB_VMODE_MASK) ==
2389                            FB_VMODE_DOUBLE) {
2390                         default_var.pixclock >>= 1;
2391                         default_var.yres >>= 1;
2392                         default_var.yres_virtual >>= 1;
2393                 }
2394
2395         }
2396
2397         fb_info->flags = FBINFO_FLAG_DEFAULT;
2398         fb_info->var = default_var;
2399         fb_info->fix = XGIfb_fix;
2400         fb_info->par = &xgi_video_info;
2401         fb_info->screen_base = xgi_video_info.video_vbase;
2402         fb_info->fbops = &XGIfb_ops;
2403         XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2404         fb_info->pseudo_palette = pseudo_palette;
2405
2406         fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2407
2408 #ifdef CONFIG_MTRR
2409         xgi_video_info.mtrr = mtrr_add(xgi_video_info.video_base,
2410                 xgi_video_info.video_size, MTRR_TYPE_WRCOMB, 1);
2411         if (xgi_video_info.mtrr >= 0)
2412                 dev_info(&pdev->dev, "added MTRR\n");
2413 #endif
2414
2415         if (register_framebuffer(fb_info) < 0) {
2416                 ret = -EINVAL;
2417                 goto error_mtrr;
2418         }
2419
2420         pci_set_drvdata(pdev, &xgi_video_info);
2421
2422         dumpVGAReg();
2423
2424         return 0;
2425
2426 error_mtrr:
2427 #ifdef CONFIG_MTRR
2428         if (xgi_video_info.mtrr >= 0)
2429                 mtrr_del(xgi_video_info.mtrr, xgi_video_info.video_base,
2430                         xgi_video_info.video_size);
2431 #endif /* CONFIG_MTRR */
2432 error_1:
2433         iounmap(xgi_video_info.mmio_vbase);
2434         iounmap(xgi_video_info.video_vbase);
2435         release_mem_region(xgi_video_info.mmio_base, xgi_video_info.mmio_size);
2436 error_0:
2437         release_mem_region(xgi_video_info.video_base,
2438                            xgi_video_info.video_size);
2439 error:
2440         vfree(XGIhw_ext.pjVirtualRomBase);
2441         framebuffer_release(fb_info);
2442         return ret;
2443 }
2444
2445 /*****************************************************/
2446 /*                PCI DEVICE HANDLING                */
2447 /*****************************************************/
2448
2449 static void __devexit xgifb_remove(struct pci_dev *pdev)
2450 {
2451         struct video_info *xgifb_info = pci_get_drvdata(pdev);
2452         struct fb_info *fb_info = xgifb_info->fb_info;
2453
2454         unregister_framebuffer(fb_info);
2455 #ifdef CONFIG_MTRR
2456         if (xgifb_info->mtrr >= 0)
2457                 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2458                         xgifb_info->video_size);
2459 #endif /* CONFIG_MTRR */
2460         iounmap(xgifb_info->mmio_vbase);
2461         iounmap(xgifb_info->video_vbase);
2462         release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2463         release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2464         vfree(XGIhw_ext.pjVirtualRomBase);
2465         framebuffer_release(fb_info);
2466         pci_set_drvdata(pdev, NULL);
2467 }
2468
2469 static struct pci_driver xgifb_driver = {
2470         .name = "xgifb",
2471         .id_table = xgifb_pci_table,
2472         .probe = xgifb_probe,
2473         .remove = __devexit_p(xgifb_remove)
2474 };
2475
2476 static int __init xgifb_init(void)
2477 {
2478         char *option = NULL;
2479
2480         if (fb_get_options("xgifb", &option))
2481                 return -ENODEV;
2482         XGIfb_setup(option);
2483
2484         return pci_register_driver(&xgifb_driver);
2485 }
2486
2487 module_init(xgifb_init);
2488
2489 /*****************************************************/
2490 /*                      MODULE                       */
2491 /*****************************************************/
2492
2493 #ifdef MODULE
2494
2495 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2496 MODULE_LICENSE("GPL");
2497 MODULE_AUTHOR("XGITECH , Others");
2498
2499 module_param(mode, charp, 0);
2500 module_param(vesa, int, 0);
2501 module_param(filter, int, 0);
2502
2503 MODULE_PARM_DESC(mode,
2504         "\nSelects the desired default display mode in the format XxYxDepth,\n"
2505         "eg. 1024x768x16.\n");
2506
2507 MODULE_PARM_DESC(vesa,
2508         "\nSelects the desired default display mode by VESA mode number, eg.\n"
2509         "0x117.\n");
2510
2511 MODULE_PARM_DESC(filter,
2512                 "\nSelects TV flicker filter type (only for systems with a SiS301 video bridge).\n"
2513                 "(Possible values 0-7, default: [no filter])\n");
2514
2515 static void __exit xgifb_remove_module(void)
2516 {
2517         pci_unregister_driver(&xgifb_driver);
2518         printk(KERN_DEBUG "xgifb: Module unloaded\n");
2519 }
2520
2521 module_exit(xgifb_remove_module);
2522
2523 #endif  /*  /MODULE  */