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