drivers/video/matrox/matroxfb_base.c

   1 /*
   2  *
   3  * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
   4  *
   5  * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
   6  *
   7  * Portions Copyright (c) 2001 Matrox Graphics Inc.
   8  *
   9  * Version: 1.65 2002/08/14
  10  *
  11  * MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
  12  *
  13  * Contributors: "menion?" <menion@mindless.com>
  14  *                     Betatesting, fixes, ideas
  15  *
  16  *               "Kurt Garloff" <garloff@suse.de>
  17  *                     Betatesting, fixes, ideas, videomodes, videomodes timmings
  18  *
  19  *               "Tom Rini" <trini@kernel.crashing.org>
  20  *                     MTRR stuff, PPC cleanups, betatesting, fixes, ideas
  21  *
  22  *               "Bibek Sahu" <scorpio@dodds.net>
  23  *                     Access device through readb|w|l and write b|w|l
  24  *                     Extensive debugging stuff
  25  *
  26  *               "Daniel Haun" <haund@usa.net>
  27  *                     Testing, hardware cursor fixes
  28  *
  29  *               "Scott Wood" <sawst46+@pitt.edu>
  30  *                     Fixes
  31  *
  32  *               "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
  33  *                     Betatesting
  34  *
  35  *               "Kelly French" <targon@hazmat.com>
  36  *               "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
  37  *                     Betatesting, bug reporting
  38  *
  39  *               "Pablo Bianucci" <pbian@pccp.com.ar>
  40  *                     Fixes, ideas, betatesting
  41  *
  42  *               "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
  43  *                     Fixes, enhandcements, ideas, betatesting
  44  *
  45  *               "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
  46  *                     PPC betatesting, PPC support, backward compatibility
  47  *
  48  *               "Paul Womar" <Paul@pwomar.demon.co.uk>
  49  *               "Owen Waller" <O.Waller@ee.qub.ac.uk>
  50  *                     PPC betatesting
  51  *
  52  *               "Thomas Pornin" <pornin@bolet.ens.fr>
  53  *                     Alpha betatesting
  54  *
  55  *               "Pieter van Leuven" <pvl@iae.nl>
  56  *               "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
  57  *                     G100 testing
  58  *
  59  *               "H. Peter Arvin" <hpa@transmeta.com>
  60  *                     Ideas
  61  *
  62  *               "Cort Dougan" <cort@cs.nmt.edu>
  63  *                     CHRP fixes and PReP cleanup
  64  *
  65  *               "Mark Vojkovich" <mvojkovi@ucsd.edu>
  66  *                     G400 support
  67  *
  68  *               "Samuel Hocevar" <sam@via.ecp.fr>
  69  *                     Fixes
  70  *
  71  *               "Anton Altaparmakov" <AntonA@bigfoot.com>
  72  *                     G400 MAX/non-MAX distinction
  73  *
  74  *               "Ken Aaker" <kdaaker@rchland.vnet.ibm.com>
  75  *                     memtype extension (needed for GXT130P RS/6000 adapter)
  76  *
  77  *               "Uns Lider" <unslider@miranda.org>
  78  *                     G100 PLNWT fixes
  79  *
  80  *               "Denis Zaitsev" <zzz@cd-club.ru>
  81  *                     Fixes
  82  *
  83  *               "Mike Pieper" <mike@pieper-family.de>
  84  *                     TVOut enhandcements, V4L2 control interface.
  85  *
  86  *               "Diego Biurrun" <diego@biurrun.de>
  87  *                     DFP testing
  88  *
  89  * (following author is not in any relation with this code, but his code
  90  *  is included in this driver)
  91  *
  92  * Based on framebuffer driver for VBE 2.0 compliant graphic boards
  93  *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
  94  *
  95  * (following author is not in any relation with this code, but his ideas
  96  *  were used when writing this driver)
  97  *
  98  *               FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
  99  *
 100  */
 101
 102 #include <linux/version.h>
 103
 104 #include "matroxfb_base.h"
 105 #include "matroxfb_misc.h"
 106 #include "matroxfb_accel.h"
 107 #include "matroxfb_DAC1064.h"
 108 #include "matroxfb_Ti3026.h"
 109 #include "matroxfb_maven.h"
 110 #include "matroxfb_crtc2.h"
 111 #include "matroxfb_g450.h"
 112 #include <linux/matroxfb.h>
 113 #include <linux/interrupt.h>
 114 #include <linux/slab.h>
 115 #include <linux/uaccess.h>
 116
 117 #ifdef CONFIG_PPC_PMAC
 118 #include <asm/machdep.h>
 119 unsigned char nvram_read_byte(int);
 120 static int default_vmode = VMODE_NVRAM;
 121 static int default_cmode = CMODE_NVRAM;
 122 #endif
 123
 124 static void matroxfb_unregister_device(struct matrox_fb_info* minfo);
 125
 126 /* --------------------------------------------------------------------- */
 127
 128 /*
 129  * card parameters
 130  */
 131
 132 /* --------------------------------------------------------------------- */
 133
 134 static struct fb_var_screeninfo vesafb_defined = {
 135         640,480,640,480,/* W,H, W, H (virtual) load xres,xres_virtual*/
 136         0,0,            /* virtual -> visible no offset */
 137         8,              /* depth -> load bits_per_pixel */
 138         0,              /* greyscale ? */
 139         {0,0,0},        /* R */
 140         {0,0,0},        /* G */
 141         {0,0,0},        /* B */
 142         {0,0,0},        /* transparency */
 143         0,              /* standard pixel format */
 144         FB_ACTIVATE_NOW,
 145         -1,-1,
 146         FB_ACCELF_TEXT, /* accel flags */
 147         39721L,48L,16L,33L,10L,
 148         96L,2L,~0,      /* No sync info */
 149         FB_VMODE_NONINTERLACED,
 150 };
 151
 152
 153
 154 /* --------------------------------------------------------------------- */
 155 static void update_crtc2(struct matrox_fb_info *minfo, unsigned int pos)
 156 {
 157         struct matroxfb_dh_fb_info *info = minfo->crtc2.info;
 158
 159         /* Make sure that displays are compatible */
 160         if (info && (info->fbcon.var.bits_per_pixel == minfo->fbcon.var.bits_per_pixel)
 161                  && (info->fbcon.var.xres_virtual == minfo->fbcon.var.xres_virtual)
 162                  && (info->fbcon.var.green.length == minfo->fbcon.var.green.length)
 163                  ) {
 164                 switch (minfo->fbcon.var.bits_per_pixel) {
 165                         case 16:
 166                         case 32:
 167                                 pos = pos * 8;
 168                                 if (info->interlaced) {
 169                                         mga_outl(0x3C2C, pos);
 170                                         mga_outl(0x3C28, pos + minfo->fbcon.var.xres_virtual * minfo->fbcon.var.bits_per_pixel / 8);
 171                                 } else {
 172                                         mga_outl(0x3C28, pos);
 173                                 }
 174                                 break;
 175                 }
 176         }
 177 }
 178
 179 static void matroxfb_crtc1_panpos(struct matrox_fb_info *minfo)
 180 {
 181         if (minfo->crtc1.panpos >= 0) {
 182                 unsigned long flags;
 183                 int panpos;
 184
 185                 matroxfb_DAC_lock_irqsave(flags);
 186                 panpos = minfo->crtc1.panpos;
 187                 if (panpos >= 0) {
 188                         unsigned int extvga_reg;
 189
 190                         minfo->crtc1.panpos = -1; /* No update pending anymore */
 191                         extvga_reg = mga_inb(M_EXTVGA_INDEX);
 192                         mga_setr(M_EXTVGA_INDEX, 0x00, panpos);
 193                         if (extvga_reg != 0x00) {
 194                                 mga_outb(M_EXTVGA_INDEX, extvga_reg);
 195                         }
 196                 }
 197                 matroxfb_DAC_unlock_irqrestore(flags);
 198         }
 199 }
 200
 201 static irqreturn_t matrox_irq(int irq, void *dev_id)
 202 {
 203         u_int32_t status;
 204         int handled = 0;
 205         struct matrox_fb_info *minfo = dev_id;
 206
 207         status = mga_inl(M_STATUS);
 208
 209         if (status & 0x20) {
 210                 mga_outl(M_ICLEAR, 0x20);
 211                 minfo->crtc1.vsync.cnt++;
 212                 matroxfb_crtc1_panpos(minfo);
 213                 wake_up_interruptible(&minfo->crtc1.vsync.wait);
 214                 handled = 1;
 215         }
 216         if (status & 0x200) {
 217                 mga_outl(M_ICLEAR, 0x200);
 218                 minfo->crtc2.vsync.cnt++;
 219                 wake_up_interruptible(&minfo->crtc2.vsync.wait);
 220                 handled = 1;
 221         }
 222         return IRQ_RETVAL(handled);
 223 }
 224
 225 int matroxfb_enable_irq(struct matrox_fb_info *minfo, int reenable)
 226 {
 227         u_int32_t bm;
 228
 229         if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
 230                 bm = 0x220;
 231         else
 232                 bm = 0x020;
 233
 234         if (!test_and_set_bit(0, &minfo->irq_flags)) {
 235                 if (request_irq(minfo->pcidev->irq, matrox_irq,
 236                                 IRQF_SHARED, "matroxfb", minfo)) {
 237                         clear_bit(0, &minfo->irq_flags);
 238                         return -EINVAL;
 239                 }
 240                 /* Clear any pending field interrupts */
 241                 mga_outl(M_ICLEAR, bm);
 242                 mga_outl(M_IEN, mga_inl(M_IEN) | bm);
 243         } else if (reenable) {
 244                 u_int32_t ien;
 245
 246                 ien = mga_inl(M_IEN);
 247                 if ((ien & bm) != bm) {
 248                         printk(KERN_DEBUG "matroxfb: someone disabled IRQ [%08X]\n", ien);
 249                         mga_outl(M_IEN, ien | bm);
 250                 }
 251         }
 252         return 0;
 253 }
 254
 255 static void matroxfb_disable_irq(struct matrox_fb_info *minfo)
 256 {
 257         if (test_and_clear_bit(0, &minfo->irq_flags)) {
 258                 /* Flush pending pan-at-vbl request... */
 259                 matroxfb_crtc1_panpos(minfo);
 260                 if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
 261                         mga_outl(M_IEN, mga_inl(M_IEN) & ~0x220);
 262                 else
 263                         mga_outl(M_IEN, mga_inl(M_IEN) & ~0x20);
 264                 free_irq(minfo->pcidev->irq, minfo);
 265         }
 266 }
 267
 268 int matroxfb_wait_for_sync(struct matrox_fb_info *minfo, u_int32_t crtc)
 269 {
 270         struct matrox_vsync *vs;
 271         unsigned int cnt;
 272         int ret;
 273
 274         switch (crtc) {
 275                 case 0:
 276                         vs = &minfo->crtc1.vsync;
 277                         break;
 278                 case 1:
 279                         if (minfo->devflags.accelerator != FB_ACCEL_MATROX_MGAG400) {
 280                                 return -ENODEV;
 281                         }
 282                         vs = &minfo->crtc2.vsync;
 283                         break;
 284                 default:
 285                         return -ENODEV;
 286         }
 287         ret = matroxfb_enable_irq(minfo, 0);
 288         if (ret) {
 289                 return ret;
 290         }
 291
 292         cnt = vs->cnt;
 293         ret = wait_event_interruptible_timeout(vs->wait, cnt != vs->cnt, HZ/10);
 294         if (ret < 0) {
 295                 return ret;
 296         }
 297         if (ret == 0) {
 298                 matroxfb_enable_irq(minfo, 1);
 299                 return -ETIMEDOUT;
 300         }
 301         return 0;
 302 }
 303
 304 /* --------------------------------------------------------------------- */
 305
 306 static void matrox_pan_var(struct matrox_fb_info *minfo,
 307                            struct fb_var_screeninfo *var)
 308 {
 309         unsigned int pos;
 310         unsigned short p0, p1, p2;
 311         unsigned int p3;
 312         int vbl;
 313         unsigned long flags;
 314
 315         CRITFLAGS
 316
 317         DBG(__func__)
 318
 319         if (minfo->dead)
 320                 return;
 321
 322         minfo->fbcon.var.xoffset = var->xoffset;
 323         minfo->fbcon.var.yoffset = var->yoffset;
 324         pos = (minfo->fbcon.var.yoffset * minfo->fbcon.var.xres_virtual + minfo->fbcon.var.xoffset) * minfo->curr.final_bppShift / 32;
 325         pos += minfo->curr.ydstorg.chunks;
 326         p0 = minfo->hw.CRTC[0x0D] = pos & 0xFF;
 327         p1 = minfo->hw.CRTC[0x0C] = (pos & 0xFF00) >> 8;
 328         p2 = minfo->hw.CRTCEXT[0] = (minfo->hw.CRTCEXT[0] & 0xB0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
 329         p3 = minfo->hw.CRTCEXT[8] = pos >> 21;
 330
 331         /* FB_ACTIVATE_VBL and we can acquire interrupts? Honor FB_ACTIVATE_VBL then... */
 332         vbl = (var->activate & FB_ACTIVATE_VBL) && (matroxfb_enable_irq(minfo, 0) == 0);
 333
 334         CRITBEGIN
 335
 336         matroxfb_DAC_lock_irqsave(flags);
 337         mga_setr(M_CRTC_INDEX, 0x0D, p0);
 338         mga_setr(M_CRTC_INDEX, 0x0C, p1);
 339         if (minfo->devflags.support32MB)
 340                 mga_setr(M_EXTVGA_INDEX, 0x08, p3);
 341         if (vbl) {
 342                 minfo->crtc1.panpos = p2;
 343         } else {
 344                 /* Abort any pending change */
 345                 minfo->crtc1.panpos = -1;
 346                 mga_setr(M_EXTVGA_INDEX, 0x00, p2);
 347         }
 348         matroxfb_DAC_unlock_irqrestore(flags);
 349
 350         update_crtc2(minfo, pos);
 351
 352         CRITEND
 353 }
 354
 355 static void matroxfb_remove(struct matrox_fb_info *minfo, int dummy)
 356 {
 357         /* Currently we are holding big kernel lock on all dead & usecount updates.
 358          * Destroy everything after all users release it. Especially do not unregister
 359          * framebuffer and iounmap memory, neither fbmem nor fbcon-cfb* does not check
 360          * for device unplugged when in use.
 361          * In future we should point mmio.vbase & video.vbase somewhere where we can
 362          * write data without causing too much damage...
 363          */
 364
 365         minfo->dead = 1;
 366         if (minfo->usecount) {
 367                 /* destroy it later */
 368                 return;
 369         }
 370         matroxfb_unregister_device(minfo);
 371         unregister_framebuffer(&minfo->fbcon);
 372         matroxfb_g450_shutdown(minfo);
 373 #ifdef CONFIG_MTRR
 374         if (minfo->mtrr.vram_valid)
 375                 mtrr_del(minfo->mtrr.vram, minfo->video.base, minfo->video.len);
 376 #endif
 377         mga_iounmap(minfo->mmio.vbase);
 378         mga_iounmap(minfo->video.vbase);
 379         release_mem_region(minfo->video.base, minfo->video.len_maximum);
 380         release_mem_region(minfo->mmio.base, 16384);
 381         kfree(minfo);
 382 }
 383
 384         /*
 385          * Open/Release the frame buffer device
 386          */
 387
 388 static int matroxfb_open(struct fb_info *info, int user)
 389 {
 390         struct matrox_fb_info *minfo = info2minfo(info);
 391
 392         DBG_LOOP(__func__)
 393
 394         if (minfo->dead) {
 395                 return -ENXIO;
 396         }
 397         minfo->usecount++;
 398         if (user) {
 399                 minfo->userusecount++;
 400         }
 401         return(0);
 402 }
 403
 404 static int matroxfb_release(struct fb_info *info, int user)
 405 {
 406         struct matrox_fb_info *minfo = info2minfo(info);
 407
 408         DBG_LOOP(__func__)
 409
 410         if (user) {
 411                 if (0 == --minfo->userusecount) {
 412                         matroxfb_disable_irq(minfo);
 413                 }
 414         }
 415         if (!(--minfo->usecount) && minfo->dead) {
 416                 matroxfb_remove(minfo, 0);
 417         }
 418         return(0);
 419 }
 420
 421 static int matroxfb_pan_display(struct fb_var_screeninfo *var,
 422                 struct fb_info* info) {
 423         struct matrox_fb_info *minfo = info2minfo(info);
 424
 425         DBG(__func__)
 426
 427         matrox_pan_var(minfo, var);
 428         return 0;
 429 }
 430
 431 static int matroxfb_get_final_bppShift(const struct matrox_fb_info *minfo,
 432                                        int bpp)
 433 {
 434         int bppshft2;
 435
 436         DBG(__func__)
 437
 438         bppshft2 = bpp;
 439         if (!bppshft2) {
 440                 return 8;
 441         }
 442         if (isInterleave(minfo))
 443                 bppshft2 >>= 1;
 444         if (minfo->devflags.video64bits)
 445                 bppshft2 >>= 1;
 446         return bppshft2;
 447 }
 448
 449 static int matroxfb_test_and_set_rounding(const struct matrox_fb_info *minfo,
 450                                           int xres, int bpp)
 451 {
 452         int over;
 453         int rounding;
 454
 455         DBG(__func__)
 456
 457         switch (bpp) {
 458                 case 0:         return xres;
 459                 case 4:         rounding = 128;
 460                                 break;
 461                 case 8:         rounding = 64;  /* doc says 64; 32 is OK for G400 */
 462                                 break;
 463                 case 16:        rounding = 32;
 464                                 break;
 465                 case 24:        rounding = 64;  /* doc says 64; 32 is OK for G400 */
 466                                 break;
 467                 default:        rounding = 16;
 468                                 /* on G400, 16 really does not work */
 469                                 if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
 470                                         rounding = 32;
 471                                 break;
 472         }
 473         if (isInterleave(minfo)) {
 474                 rounding *= 2;
 475         }
 476         over = xres % rounding;
 477         if (over)
 478                 xres += rounding-over;
 479         return xres;
 480 }
 481
 482 static int matroxfb_pitch_adjust(const struct matrox_fb_info *minfo, int xres,
 483                                  int bpp)
 484 {
 485         const int* width;
 486         int xres_new;
 487
 488         DBG(__func__)
 489
 490         if (!bpp) return xres;
 491
 492         width = minfo->capable.vxres;
 493
 494         if (minfo->devflags.precise_width) {
 495                 while (*width) {
 496                         if ((*width >= xres) && (matroxfb_test_and_set_rounding(minfo, *width, bpp) == *width)) {
 497                                 break;
 498                         }
 499                         width++;
 500                 }
 501                 xres_new = *width;
 502         } else {
 503                 xres_new = matroxfb_test_and_set_rounding(minfo, xres, bpp);
 504         }
 505         return xres_new;
 506 }
 507
 508 static int matroxfb_get_cmap_len(struct fb_var_screeninfo *var) {
 509
 510         DBG(__func__)
 511
 512         switch (var->bits_per_pixel) {
 513                 case 4:
 514                         return 16;      /* pseudocolor... 16 entries HW palette */
 515                 case 8:
 516                         return 256;     /* pseudocolor... 256 entries HW palette */
 517                 case 16:
 518                         return 16;      /* directcolor... 16 entries SW palette */
 519                                         /* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
 520                 case 24:
 521                         return 16;      /* directcolor... 16 entries SW palette */
 522                                         /* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
 523                 case 32:
 524                         return 16;      /* directcolor... 16 entries SW palette */
 525                                         /* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
 526         }
 527         return 16;      /* return something reasonable... or panic()? */
 528 }
 529
 530 static int matroxfb_decode_var(const struct matrox_fb_info *minfo,
 531                                struct fb_var_screeninfo *var, int *visual,
 532                                int *video_cmap_len, unsigned int* ydstorg)
 533 {
 534         struct RGBT {
 535                 unsigned char bpp;
 536                 struct {
 537                         unsigned char offset,
 538                                       length;
 539                 } red,
 540                   green,
 541                   blue,
 542                   transp;
 543                 signed char visual;
 544         };
 545         static const struct RGBT table[]= {
 546                 { 8,{ 0,8},{0,8},{0,8},{ 0,0},MX_VISUAL_PSEUDOCOLOR},
 547                 {15,{10,5},{5,5},{0,5},{15,1},MX_VISUAL_DIRECTCOLOR},
 548                 {16,{11,5},{5,6},{0,5},{ 0,0},MX_VISUAL_DIRECTCOLOR},
 549                 {24,{16,8},{8,8},{0,8},{ 0,0},MX_VISUAL_DIRECTCOLOR},
 550                 {32,{16,8},{8,8},{0,8},{24,8},MX_VISUAL_DIRECTCOLOR}
 551         };
 552         struct RGBT const *rgbt;
 553         unsigned int bpp = var->bits_per_pixel;
 554         unsigned int vramlen;
 555         unsigned int memlen;
 556
 557         DBG(__func__)
 558
 559         switch (bpp) {
 560                 case 4:  if (!minfo->capable.cfb4) return -EINVAL;
 561                          break;
 562                 case 8:  break;
 563                 case 16: break;
 564                 case 24: break;
 565                 case 32: break;
 566                 default: return -EINVAL;
 567         }
 568         *ydstorg = 0;
 569         vramlen = minfo->video.len_usable;
 570         if (var->yres_virtual < var->yres)
 571                 var->yres_virtual = var->yres;
 572         if (var->xres_virtual < var->xres)
 573                 var->xres_virtual = var->xres;
 574
 575         var->xres_virtual = matroxfb_pitch_adjust(minfo, var->xres_virtual, bpp);
 576         memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
 577         if (memlen > vramlen) {
 578                 var->yres_virtual = vramlen * 8 / (var->xres_virtual * bpp);
 579                 memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
 580         }
 581         /* There is hardware bug that no line can cross 4MB boundary */
 582         /* give up for CFB24, it is impossible to easy workaround it */
 583         /* for other try to do something */
 584         if (!minfo->capable.cross4MB && (memlen > 0x400000)) {
 585                 if (bpp == 24) {
 586                         /* sorry */
 587                 } else {
 588                         unsigned int linelen;
 589                         unsigned int m1 = linelen = var->xres_virtual * bpp / 8;
 590                         unsigned int m2 = PAGE_SIZE;    /* or 128 if you do not need PAGE ALIGNED address */
 591                         unsigned int max_yres;
 592
 593                         while (m1) {
 594                                 int t;
 595
 596                                 while (m2 >= m1) m2 -= m1;
 597                                 t = m1;
 598                                 m1 = m2;
 599                                 m2 = t;
 600                         }
 601                         m2 = linelen * PAGE_SIZE / m2;
 602                         *ydstorg = m2 = 0x400000 % m2;
 603                         max_yres = (vramlen - m2) / linelen;
 604                         if (var->yres_virtual > max_yres)
 605                                 var->yres_virtual = max_yres;
 606                 }
 607         }
 608         /* YDSTLEN contains only signed 16bit value */
 609         if (var->yres_virtual > 32767)
 610                 var->yres_virtual = 32767;
 611         /* we must round yres/xres down, we already rounded y/xres_virtual up
 612            if it was possible. We should return -EINVAL, but I disagree */
 613         if (var->yres_virtual < var->yres)
 614                 var->yres = var->yres_virtual;
 615         if (var->xres_virtual < var->xres)
 616                 var->xres = var->xres_virtual;
 617         if (var->xoffset + var->xres > var->xres_virtual)
 618                 var->xoffset = var->xres_virtual - var->xres;
 619         if (var->yoffset + var->yres > var->yres_virtual)
 620                 var->yoffset = var->yres_virtual - var->yres;
 621
 622         if (bpp == 16 && var->green.length == 5) {
 623                 bpp--; /* an artificial value - 15 */
 624         }
 625
 626         for (rgbt = table; rgbt->bpp < bpp; rgbt++);
 627 #define SETCLR(clr)\
 628         var->clr.offset = rgbt->clr.offset;\
 629         var->clr.length = rgbt->clr.length
 630         SETCLR(red);
 631         SETCLR(green);
 632         SETCLR(blue);
 633         SETCLR(transp);
 634 #undef  SETCLR
 635         *visual = rgbt->visual;
 636
 637         if (bpp > 8)
 638                 dprintk("matroxfb: truecolor: "
 639                         "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
 640                         var->transp.length, var->red.length, var->green.length, var->blue.length,
 641                         var->transp.offset, var->red.offset, var->green.offset, var->blue.offset);
 642
 643         *video_cmap_len = matroxfb_get_cmap_len(var);
 644         dprintk(KERN_INFO "requested %d*%d/%dbpp (%d*%d)\n", var->xres, var->yres, var->bits_per_pixel,
 645                                 var->xres_virtual, var->yres_virtual);
 646         return 0;
 647 }
 648
 649 static int matroxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
 650                               unsigned blue, unsigned transp,
 651                               struct fb_info *fb_info)
 652 {
 653         struct matrox_fb_info* minfo = container_of(fb_info, struct matrox_fb_info, fbcon);
 654
 655         DBG(__func__)
 656
 657         /*
 658          *  Set a single color register. The values supplied are
 659          *  already rounded down to the hardware's capabilities
 660          *  (according to the entries in the `var' structure). Return
 661          *  != 0 for invalid regno.
 662          */
 663
 664         if (regno >= minfo->curr.cmap_len)
 665                 return 1;
 666
 667         if (minfo->fbcon.var.grayscale) {
 668                 /* gray = 0.30*R + 0.59*G + 0.11*B */
 669                 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
 670         }
 671
 672         red = CNVT_TOHW(red, minfo->fbcon.var.red.length);
 673         green = CNVT_TOHW(green, minfo->fbcon.var.green.length);
 674         blue = CNVT_TOHW(blue, minfo->fbcon.var.blue.length);
 675         transp = CNVT_TOHW(transp, minfo->fbcon.var.transp.length);
 676
 677         switch (minfo->fbcon.var.bits_per_pixel) {
 678         case 4:
 679         case 8:
 680                 mga_outb(M_DAC_REG, regno);
 681                 mga_outb(M_DAC_VAL, red);
 682                 mga_outb(M_DAC_VAL, green);
 683                 mga_outb(M_DAC_VAL, blue);
 684                 break;
 685         case 16:
 686                 if (regno >= 16)
 687                         break;
 688                 {
 689                         u_int16_t col =
 690                                 (red << minfo->fbcon.var.red.offset)     |
 691                                 (green << minfo->fbcon.var.green.offset) |
 692                                 (blue << minfo->fbcon.var.blue.offset)   |
 693                                 (transp << minfo->fbcon.var.transp.offset); /* for 1:5:5:5 */
 694                         minfo->cmap[regno] = col | (col << 16);
 695                 }
 696                 break;
 697         case 24:
 698         case 32:
 699                 if (regno >= 16)
 700                         break;
 701                 minfo->cmap[regno] =
 702                         (red   << minfo->fbcon.var.red.offset)   |
 703                         (green << minfo->fbcon.var.green.offset) |
 704                         (blue  << minfo->fbcon.var.blue.offset)  |
 705                         (transp << minfo->fbcon.var.transp.offset);     /* 8:8:8:8 */
 706                 break;
 707         }
 708         return 0;
 709 }
 710
 711 static void matroxfb_init_fix(struct matrox_fb_info *minfo)
 712 {
 713         struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
 714         DBG(__func__)
 715
 716         strcpy(fix->id,"MATROX");
 717
 718         fix->xpanstep = 8;      /* 8 for 8bpp, 4 for 16bpp, 2 for 32bpp */
 719         fix->ypanstep = 1;
 720         fix->ywrapstep = 0;
 721         fix->mmio_start = minfo->mmio.base;
 722         fix->mmio_len = minfo->mmio.len;
 723         fix->accel = minfo->devflags.accelerator;
 724 }
 725
 726 static void matroxfb_update_fix(struct matrox_fb_info *minfo)
 727 {
 728         struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
 729         DBG(__func__)
 730
 731         mutex_lock(&minfo->fbcon.mm_lock);
 732         fix->smem_start = minfo->video.base + minfo->curr.ydstorg.bytes;
 733         fix->smem_len = minfo->video.len_usable - minfo->curr.ydstorg.bytes;
 734         mutex_unlock(&minfo->fbcon.mm_lock);
 735 }
 736
 737 static int matroxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 738 {
 739         int err;
 740         int visual;
 741         int cmap_len;
 742         unsigned int ydstorg;
 743         struct matrox_fb_info *minfo = info2minfo(info);
 744
 745         if (minfo->dead) {
 746                 return -ENXIO;
 747         }
 748         if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
 749                 return err;
 750         return 0;
 751 }
 752
 753 static int matroxfb_set_par(struct fb_info *info)
 754 {
 755         int err;
 756         int visual;
 757         int cmap_len;
 758         unsigned int ydstorg;
 759         struct fb_var_screeninfo *var;
 760         struct matrox_fb_info *minfo = info2minfo(info);
 761
 762         DBG(__func__)
 763
 764         if (minfo->dead) {
 765                 return -ENXIO;
 766         }
 767
 768         var = &info->var;
 769         if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
 770                 return err;
 771         minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase) + ydstorg;
 772         matroxfb_update_fix(minfo);
 773         minfo->fbcon.fix.visual = visual;
 774         minfo->fbcon.fix.type = FB_TYPE_PACKED_PIXELS;
 775         minfo->fbcon.fix.type_aux = 0;
 776         minfo->fbcon.fix.line_length = (var->xres_virtual * var->bits_per_pixel) >> 3;
 777         {
 778                 unsigned int pos;
 779
 780                 minfo->curr.cmap_len = cmap_len;
 781                 ydstorg += minfo->devflags.ydstorg;
 782                 minfo->curr.ydstorg.bytes = ydstorg;
 783                 minfo->curr.ydstorg.chunks = ydstorg >> (isInterleave(minfo) ? 3 : 2);
 784                 if (var->bits_per_pixel == 4)
 785                         minfo->curr.ydstorg.pixels = ydstorg;
 786                 else
 787                         minfo->curr.ydstorg.pixels = (ydstorg * 8) / var->bits_per_pixel;
 788                 minfo->curr.final_bppShift = matroxfb_get_final_bppShift(minfo, var->bits_per_pixel);
 789                 {       struct my_timming mt;
 790                         struct matrox_hw_state* hw;
 791                         int out;
 792
 793                         matroxfb_var2my(var, &mt);
 794                         mt.crtc = MATROXFB_SRC_CRTC1;
 795                         /* CRTC1 delays */
 796                         switch (var->bits_per_pixel) {
 797                                 case  0:        mt.delay = 31 + 0; break;
 798                                 case 16:        mt.delay = 21 + 8; break;
 799                                 case 24:        mt.delay = 17 + 8; break;
 800                                 case 32:        mt.delay = 16 + 8; break;
 801                                 default:        mt.delay = 31 + 8; break;
 802                         }
 803
 804                         hw = &minfo->hw;
 805
 806                         down_read(&minfo->altout.lock);
 807                         for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
 808                                 if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
 809                                     minfo->outputs[out].output->compute) {
 810                                         minfo->outputs[out].output->compute(minfo->outputs[out].data, &mt);
 811                                 }
 812                         }
 813                         up_read(&minfo->altout.lock);
 814                         minfo->crtc1.pixclock = mt.pixclock;
 815                         minfo->crtc1.mnp = mt.mnp;
 816                         minfo->hw_switch->init(minfo, &mt);
 817                         pos = (var->yoffset * var->xres_virtual + var->xoffset) * minfo->curr.final_bppShift / 32;
 818                         pos += minfo->curr.ydstorg.chunks;
 819
 820                         hw->CRTC[0x0D] = pos & 0xFF;
 821                         hw->CRTC[0x0C] = (pos & 0xFF00) >> 8;
 822                         hw->CRTCEXT[0] = (hw->CRTCEXT[0] & 0xF0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
 823                         hw->CRTCEXT[8] = pos >> 21;
 824                         minfo->hw_switch->restore(minfo);
 825                         update_crtc2(minfo, pos);
 826                         down_read(&minfo->altout.lock);
 827                         for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
 828                                 if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
 829                                     minfo->outputs[out].output->program) {
 830                                         minfo->outputs[out].output->program(minfo->outputs[out].data);
 831                                 }
 832                         }
 833                         for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
 834                                 if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
 835                                     minfo->outputs[out].output->start) {
 836                                         minfo->outputs[out].output->start(minfo->outputs[out].data);
 837                                 }
 838                         }
 839                         up_read(&minfo->altout.lock);
 840                         matrox_cfbX_init(minfo);
 841                 }
 842         }
 843         minfo->initialized = 1;
 844         return 0;
 845 }
 846
 847 static int matroxfb_get_vblank(struct matrox_fb_info *minfo,
 848                                struct fb_vblank *vblank)
 849 {
 850         unsigned int sts1;
 851
 852         matroxfb_enable_irq(minfo, 0);
 853         memset(vblank, 0, sizeof(*vblank));
 854         vblank->flags = FB_VBLANK_HAVE_VCOUNT | FB_VBLANK_HAVE_VSYNC |
 855                         FB_VBLANK_HAVE_VBLANK | FB_VBLANK_HAVE_HBLANK;
 856         sts1 = mga_inb(M_INSTS1);
 857         vblank->vcount = mga_inl(M_VCOUNT);
 858         /* BTW, on my PIII/450 with G400, reading M_INSTS1
 859            byte makes this call about 12% slower (1.70 vs. 2.05 us
 860            per ioctl()) */
 861         if (sts1 & 1)
 862                 vblank->flags |= FB_VBLANK_HBLANKING;
 863         if (sts1 & 8)
 864                 vblank->flags |= FB_VBLANK_VSYNCING;
 865         if (vblank->vcount >= minfo->fbcon.var.yres)
 866                 vblank->flags |= FB_VBLANK_VBLANKING;
 867         if (test_bit(0, &minfo->irq_flags)) {
 868                 vblank->flags |= FB_VBLANK_HAVE_COUNT;
 869                 /* Only one writer, aligned int value...
 870                    it should work without lock and without atomic_t */
 871                 vblank->count = minfo->crtc1.vsync.cnt;
 872         }
 873         return 0;
 874 }
 875
 876 static struct matrox_altout panellink_output = {
 877         .name    = "Panellink output",
 878 };
 879
 880 static int matroxfb_ioctl(struct fb_info *info,
 881                           unsigned int cmd, unsigned long arg)
 882 {
 883         void __user *argp = (void __user *)arg;
 884         struct matrox_fb_info *minfo = info2minfo(info);
 885
 886         DBG(__func__)
 887
 888         if (minfo->dead) {
 889                 return -ENXIO;
 890         }
 891
 892         switch (cmd) {
 893                 case FBIOGET_VBLANK:
 894                         {
 895                                 struct fb_vblank vblank;
 896                                 int err;
 897
 898                                 err = matroxfb_get_vblank(minfo, &vblank);
 899                                 if (err)
 900                                         return err;
 901                                 if (copy_to_user(argp, &vblank, sizeof(vblank)))
 902                                         return -EFAULT;
 903                                 return 0;
 904                         }
 905                 case FBIO_WAITFORVSYNC:
 906                         {
 907                                 u_int32_t crt;
 908
 909                                 if (get_user(crt, (u_int32_t __user *)arg))
 910                                         return -EFAULT;
 911
 912                                 return matroxfb_wait_for_sync(minfo, crt);
 913                         }
 914                 case MATROXFB_SET_OUTPUT_MODE:
 915                         {
 916                                 struct matroxioc_output_mode mom;
 917                                 struct matrox_altout *oproc;
 918                                 int val;
 919
 920                                 if (copy_from_user(&mom, argp, sizeof(mom)))
 921                                         return -EFAULT;
 922                                 if (mom.output >= MATROXFB_MAX_OUTPUTS)
 923                                         return -ENXIO;
 924                                 down_read(&minfo->altout.lock);
 925                                 oproc = minfo->outputs[mom.output].output;
 926                                 if (!oproc) {
 927                                         val = -ENXIO;
 928                                 } else if (!oproc->verifymode) {
 929                                         if (mom.mode == MATROXFB_OUTPUT_MODE_MONITOR) {
 930                                                 val = 0;
 931                                         } else {
 932                                                 val = -EINVAL;
 933                                         }
 934                                 } else {
 935                                         val = oproc->verifymode(minfo->outputs[mom.output].data, mom.mode);
 936                                 }
 937                                 if (!val) {
 938                                         if (minfo->outputs[mom.output].mode != mom.mode) {
 939                                                 minfo->outputs[mom.output].mode = mom.mode;
 940                                                 val = 1;
 941                                         }
 942                                 }
 943                                 up_read(&minfo->altout.lock);
 944                                 if (val != 1)
 945                                         return val;
 946                                 switch (minfo->outputs[mom.output].src) {
 947                                         case MATROXFB_SRC_CRTC1:
 948                                                 matroxfb_set_par(info);
 949                                                 break;
 950                                         case MATROXFB_SRC_CRTC2:
 951                                                 {
 952                                                         struct matroxfb_dh_fb_info* crtc2;
 953
 954                                                         down_read(&minfo->crtc2.lock);
 955                                                         crtc2 = minfo->crtc2.info;
 956                                                         if (crtc2)
 957                                                                 crtc2->fbcon.fbops->fb_set_par(&crtc2->fbcon);
 958                                                         up_read(&minfo->crtc2.lock);
 959                                                 }
 960                                                 break;
 961                                 }
 962                                 return 0;
 963                         }
 964                 case MATROXFB_GET_OUTPUT_MODE:
 965                         {
 966                                 struct matroxioc_output_mode mom;
 967                                 struct matrox_altout *oproc;
 968                                 int val;
 969
 970                                 if (copy_from_user(&mom, argp, sizeof(mom)))
 971                                         return -EFAULT;
 972                                 if (mom.output >= MATROXFB_MAX_OUTPUTS)
 973                                         return -ENXIO;
 974                                 down_read(&minfo->altout.lock);
 975                                 oproc = minfo->outputs[mom.output].output;
 976                                 if (!oproc) {
 977                                         val = -ENXIO;
 978                                 } else {
 979                                         mom.mode = minfo->outputs[mom.output].mode;
 980                                         val = 0;
 981                                 }
 982                                 up_read(&minfo->altout.lock);
 983                                 if (val)
 984                                         return val;
 985                                 if (copy_to_user(argp, &mom, sizeof(mom)))
 986                                         return -EFAULT;
 987                                 return 0;
 988                         }
 989                 case MATROXFB_SET_OUTPUT_CONNECTION:
 990                         {
 991                                 u_int32_t tmp;
 992                                 int i;
 993                                 int changes;
 994
 995                                 if (copy_from_user(&tmp, argp, sizeof(tmp)))
 996                                         return -EFAULT;
 997                                 for (i = 0; i < 32; i++) {
 998                                         if (tmp & (1 << i)) {
 999                                                 if (i >= MATROXFB_MAX_OUTPUTS)
1000                                                         return -ENXIO;
1001                                                 if (!minfo->outputs[i].output)
1002                                                         return -ENXIO;
1003                                                 switch (minfo->outputs[i].src) {
1004                                                         case MATROXFB_SRC_NONE:
1005                                                         case MATROXFB_SRC_CRTC1:
1006                                                                 break;
1007                                                         default:
1008                                                                 return -EBUSY;
1009                                                 }
1010                                         }
1011                                 }
1012                                 if (minfo->devflags.panellink) {
1013                                         if (tmp & MATROXFB_OUTPUT_CONN_DFP) {
1014                                                 if (tmp & MATROXFB_OUTPUT_CONN_SECONDARY)
1015                                                         return -EINVAL;
1016                                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1017                                                         if (minfo->outputs[i].src == MATROXFB_SRC_CRTC2) {
1018                                                                 return -EBUSY;
1019                                                         }
1020                                                 }
1021                                         }
1022                                 }
1023                                 changes = 0;
1024                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1025                                         if (tmp & (1 << i)) {
1026                                                 if (minfo->outputs[i].src != MATROXFB_SRC_CRTC1) {
1027                                                         changes = 1;
1028                                                         minfo->outputs[i].src = MATROXFB_SRC_CRTC1;
1029                                                 }
1030                                         } else if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1031                                                 changes = 1;
1032                                                 minfo->outputs[i].src = MATROXFB_SRC_NONE;
1033                                         }
1034                                 }
1035                                 if (!changes)
1036                                         return 0;
1037                                 matroxfb_set_par(info);
1038                                 return 0;
1039                         }
1040                 case MATROXFB_GET_OUTPUT_CONNECTION:
1041                         {
1042                                 u_int32_t conn = 0;
1043                                 int i;
1044
1045                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1046                                         if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1047                                                 conn |= 1 << i;
1048                                         }
1049                                 }
1050                                 if (put_user(conn, (u_int32_t __user *)arg))
1051                                         return -EFAULT;
1052                                 return 0;
1053                         }
1054                 case MATROXFB_GET_AVAILABLE_OUTPUTS:
1055                         {
1056                                 u_int32_t conn = 0;
1057                                 int i;
1058
1059                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1060                                         if (minfo->outputs[i].output) {
1061                                                 switch (minfo->outputs[i].src) {
1062                                                         case MATROXFB_SRC_NONE:
1063                                                         case MATROXFB_SRC_CRTC1:
1064                                                                 conn |= 1 << i;
1065                                                                 break;
1066                                                 }
1067                                         }
1068                                 }
1069                                 if (minfo->devflags.panellink) {
1070                                         if (conn & MATROXFB_OUTPUT_CONN_DFP)
1071                                                 conn &= ~MATROXFB_OUTPUT_CONN_SECONDARY;
1072                                         if (conn & MATROXFB_OUTPUT_CONN_SECONDARY)
1073                                                 conn &= ~MATROXFB_OUTPUT_CONN_DFP;
1074                                 }
1075                                 if (put_user(conn, (u_int32_t __user *)arg))
1076                                         return -EFAULT;
1077                                 return 0;
1078                         }
1079                 case MATROXFB_GET_ALL_OUTPUTS:
1080                         {
1081                                 u_int32_t conn = 0;
1082                                 int i;
1083
1084                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1085                                         if (minfo->outputs[i].output) {
1086                                                 conn |= 1 << i;
1087                                         }
1088                                 }
1089                                 if (put_user(conn, (u_int32_t __user *)arg))
1090                                         return -EFAULT;
1091                                 return 0;
1092                         }
1093                 case VIDIOC_QUERYCAP:
1094                         {
1095                                 struct v4l2_capability r;
1096
1097                                 memset(&r, 0, sizeof(r));
1098                                 strcpy(r.driver, "matroxfb");
1099                                 strcpy(r.card, "Matrox");
1100                                 sprintf(r.bus_info, "PCI:%s", pci_name(minfo->pcidev));
1101                                 r.version = KERNEL_VERSION(1,0,0);
1102                                 r.capabilities = V4L2_CAP_VIDEO_OUTPUT;
1103                                 if (copy_to_user(argp, &r, sizeof(r)))
1104                                         return -EFAULT;
1105                                 return 0;
1106
1107                         }
1108                 case VIDIOC_QUERYCTRL:
1109                         {
1110                                 struct v4l2_queryctrl qctrl;
1111                                 int err;
1112
1113                                 if (copy_from_user(&qctrl, argp, sizeof(qctrl)))
1114                                         return -EFAULT;
1115
1116                                 down_read(&minfo->altout.lock);
1117                                 if (!minfo->outputs[1].output) {
1118                                         err = -ENXIO;
1119                                 } else if (minfo->outputs[1].output->getqueryctrl) {
1120                                         err = minfo->outputs[1].output->getqueryctrl(minfo->outputs[1].data, &qctrl);
1121                                 } else {
1122                                         err = -EINVAL;
1123                                 }
1124                                 up_read(&minfo->altout.lock);
1125                                 if (err >= 0 &&
1126                                     copy_to_user(argp, &qctrl, sizeof(qctrl)))
1127                                         return -EFAULT;
1128                                 return err;
1129                         }
1130                 case VIDIOC_G_CTRL:
1131                         {
1132                                 struct v4l2_control ctrl;
1133                                 int err;
1134
1135                                 if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1136                                         return -EFAULT;
1137
1138                                 down_read(&minfo->altout.lock);
1139                                 if (!minfo->outputs[1].output) {
1140                                         err = -ENXIO;
1141                                 } else if (minfo->outputs[1].output->getctrl) {
1142                                         err = minfo->outputs[1].output->getctrl(minfo->outputs[1].data, &ctrl);
1143                                 } else {
1144                                         err = -EINVAL;
1145                                 }
1146                                 up_read(&minfo->altout.lock);
1147                                 if (err >= 0 &&
1148                                     copy_to_user(argp, &ctrl, sizeof(ctrl)))
1149                                         return -EFAULT;
1150                                 return err;
1151                         }
1152                 case VIDIOC_S_CTRL:
1153                         {
1154                                 struct v4l2_control ctrl;
1155                                 int err;
1156
1157                                 if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1158                                         return -EFAULT;
1159
1160                                 down_read(&minfo->altout.lock);
1161                                 if (!minfo->outputs[1].output) {
1162                                         err = -ENXIO;
1163                                 } else if (minfo->outputs[1].output->setctrl) {
1164                                         err = minfo->outputs[1].output->setctrl(minfo->outputs[1].data, &ctrl);
1165                                 } else {
1166                                         err = -EINVAL;
1167                                 }
1168                                 up_read(&minfo->altout.lock);
1169                                 return err;
1170                         }
1171         }
1172         return -ENOTTY;
1173 }
1174
1175 /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
1176
1177 static int matroxfb_blank(int blank, struct fb_info *info)
1178 {
1179         int seq;
1180         int crtc;
1181         CRITFLAGS
1182         struct matrox_fb_info *minfo = info2minfo(info);
1183
1184         DBG(__func__)
1185
1186         if (minfo->dead)
1187                 return 1;
1188
1189         switch (blank) {
1190         case FB_BLANK_NORMAL:  seq = 0x20; crtc = 0x00; break; /* works ??? */
1191         case FB_BLANK_VSYNC_SUSPEND:  seq = 0x20; crtc = 0x10; break;
1192         case FB_BLANK_HSYNC_SUSPEND:  seq = 0x20; crtc = 0x20; break;
1193         case FB_BLANK_POWERDOWN:  seq = 0x20; crtc = 0x30; break;
1194         default: seq = 0x00; crtc = 0x00; break;
1195         }
1196
1197         CRITBEGIN
1198
1199         mga_outb(M_SEQ_INDEX, 1);
1200         mga_outb(M_SEQ_DATA, (mga_inb(M_SEQ_DATA) & ~0x20) | seq);
1201         mga_outb(M_EXTVGA_INDEX, 1);
1202         mga_outb(M_EXTVGA_DATA, (mga_inb(M_EXTVGA_DATA) & ~0x30) | crtc);
1203
1204         CRITEND
1205         return 0;
1206 }
1207
1208 static struct fb_ops matroxfb_ops = {
1209         .owner =        THIS_MODULE,
1210         .fb_open =      matroxfb_open,
1211         .fb_release =   matroxfb_release,
1212         .fb_check_var = matroxfb_check_var,
1213         .fb_set_par =   matroxfb_set_par,
1214         .fb_setcolreg = matroxfb_setcolreg,
1215         .fb_pan_display =matroxfb_pan_display,
1216         .fb_blank =     matroxfb_blank,
1217         .fb_ioctl =     matroxfb_ioctl,
1218 /*      .fb_fillrect =  <set by matrox_cfbX_init>, */
1219 /*      .fb_copyarea =  <set by matrox_cfbX_init>, */
1220 /*      .fb_imageblit = <set by matrox_cfbX_init>, */
1221 /*      .fb_cursor =    <set by matrox_cfbX_init>, */
1222 };
1223
1224 #define RSDepth(X)      (((X) >> 8) & 0x0F)
1225 #define RS8bpp          0x1
1226 #define RS15bpp         0x2
1227 #define RS16bpp         0x3
1228 #define RS32bpp         0x4
1229 #define RS4bpp          0x5
1230 #define RS24bpp         0x6
1231 #define RSText          0x7
1232 #define RSText8         0x8
1233 /* 9-F */
1234 static struct { struct fb_bitfield red, green, blue, transp; int bits_per_pixel; } colors[] = {
1235         { {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  8 },
1236         { { 10, 5, 0}, { 5, 5, 0}, { 0, 5, 0}, { 15, 1, 0}, 16 },
1237         { { 11, 5, 0}, { 5, 6, 0}, { 0, 5, 0}, {  0, 0, 0}, 16 },
1238         { { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, { 24, 8, 0}, 32 },
1239         { {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  4 },
1240         { { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, {  0, 0, 0}, 24 },
1241         { {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },       /* textmode with (default) VGA8x16 */
1242         { {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },       /* textmode hardwired to VGA8x8 */
1243 };
1244
1245 /* initialized by setup, see explanation at end of file (search for MODULE_PARM_DESC) */
1246 static unsigned int mem;                /* "matroxfb:mem:xxxxxM" */
1247 static int option_precise_width = 1;    /* cannot be changed, option_precise_width==0 must imply noaccel */
1248 static int inv24;                       /* "matroxfb:inv24" */
1249 static int cross4MB = -1;               /* "matroxfb:cross4MB" */
1250 static int disabled;                    /* "matroxfb:disabled" */
1251 static int noaccel;                     /* "matroxfb:noaccel" */
1252 static int nopan;                       /* "matroxfb:nopan" */
1253 static int no_pci_retry;                /* "matroxfb:nopciretry" */
1254 static int novga;                       /* "matroxfb:novga" */
1255 static int nobios;                      /* "matroxfb:nobios" */
1256 static int noinit = 1;                  /* "matroxfb:init" */
1257 static int inverse;                     /* "matroxfb:inverse" */
1258 static int sgram;                       /* "matroxfb:sgram" */
1259 #ifdef CONFIG_MTRR
1260 static int mtrr = 1;                    /* "matroxfb:nomtrr" */
1261 #endif
1262 static int grayscale;                   /* "matroxfb:grayscale" */
1263 static int dev = -1;                    /* "matroxfb:dev:xxxxx" */
1264 static unsigned int vesa = ~0;          /* "matroxfb:vesa:xxxxx" */
1265 static int depth = -1;                  /* "matroxfb:depth:xxxxx" */
1266 static unsigned int xres;               /* "matroxfb:xres:xxxxx" */
1267 static unsigned int yres;               /* "matroxfb:yres:xxxxx" */
1268 static unsigned int upper = ~0;         /* "matroxfb:upper:xxxxx" */
1269 static unsigned int lower = ~0;         /* "matroxfb:lower:xxxxx" */
1270 static unsigned int vslen;              /* "matroxfb:vslen:xxxxx" */
1271 static unsigned int left = ~0;          /* "matroxfb:left:xxxxx" */
1272 static unsigned int right = ~0;         /* "matroxfb:right:xxxxx" */
1273 static unsigned int hslen;              /* "matroxfb:hslen:xxxxx" */
1274 static unsigned int pixclock;           /* "matroxfb:pixclock:xxxxx" */
1275 static int sync = -1;                   /* "matroxfb:sync:xxxxx" */
1276 static unsigned int fv;                 /* "matroxfb:fv:xxxxx" */
1277 static unsigned int fh;                 /* "matroxfb:fh:xxxxxk" */
1278 static unsigned int maxclk;             /* "matroxfb:maxclk:xxxxM" */
1279 static int dfp;                         /* "matroxfb:dfp */
1280 static int dfp_type = -1;               /* "matroxfb:dfp:xxx */
1281 static int memtype = -1;                /* "matroxfb:memtype:xxx" */
1282 static char outputs[8];                 /* "matroxfb:outputs:xxx" */
1283
1284 #ifndef MODULE
1285 static char videomode[64];              /* "matroxfb:mode:xxxxx" or "matroxfb:xxxxx" */
1286 #endif
1287
1288 static int matroxfb_getmemory(struct matrox_fb_info *minfo,
1289                               unsigned int maxSize, unsigned int *realSize)
1290 {
1291         vaddr_t vm;
1292         unsigned int offs;
1293         unsigned int offs2;
1294         unsigned char orig;
1295         unsigned char bytes[32];
1296         unsigned char* tmp;
1297
1298         DBG(__func__)
1299
1300         vm = minfo->video.vbase;
1301         maxSize &= ~0x1FFFFF;   /* must be X*2MB (really it must be 2 or X*4MB) */
1302         /* at least 2MB */
1303         if (maxSize < 0x0200000) return 0;
1304         if (maxSize > 0x2000000) maxSize = 0x2000000;
1305
1306         mga_outb(M_EXTVGA_INDEX, 0x03);
1307         orig = mga_inb(M_EXTVGA_DATA);
1308         mga_outb(M_EXTVGA_DATA, orig | 0x80);
1309
1310         tmp = bytes;
1311         for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1312                 *tmp++ = mga_readb(vm, offs);
1313         for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1314                 mga_writeb(vm, offs, 0x02);
1315         mga_outb(M_CACHEFLUSH, 0x00);
1316         for (offs = 0x100000; offs < maxSize; offs += 0x200000) {
1317                 if (mga_readb(vm, offs) != 0x02)
1318                         break;
1319                 mga_writeb(vm, offs, mga_readb(vm, offs) - 0x02);
1320                 if (mga_readb(vm, offs))
1321                         break;
1322         }
1323         tmp = bytes;
1324         for (offs2 = 0x100000; offs2 < maxSize; offs2 += 0x200000)
1325                 mga_writeb(vm, offs2, *tmp++);
1326
1327         mga_outb(M_EXTVGA_INDEX, 0x03);
1328         mga_outb(M_EXTVGA_DATA, orig);
1329
1330         *realSize = offs - 0x100000;
1331 #ifdef CONFIG_FB_MATROX_MILLENIUM
1332         minfo->interleave = !(!isMillenium(minfo) || ((offs - 0x100000) & 0x3FFFFF));
1333 #endif
1334         return 1;
1335 }
1336
1337 struct video_board {
1338         int maxvram;
1339         int maxdisplayable;
1340         int accelID;
1341         struct matrox_switch* lowlevel;
1342                  };
1343 #ifdef CONFIG_FB_MATROX_MILLENIUM
1344 static struct video_board vbMillennium          = {0x0800000, 0x0800000, FB_ACCEL_MATROX_MGA2064W,      &matrox_millennium};
1345 static struct video_board vbMillennium2         = {0x1000000, 0x0800000, FB_ACCEL_MATROX_MGA2164W,      &matrox_millennium};
1346 static struct video_board vbMillennium2A        = {0x1000000, 0x0800000, FB_ACCEL_MATROX_MGA2164W_AGP,  &matrox_millennium};
1347 #endif  /* CONFIG_FB_MATROX_MILLENIUM */
1348 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1349 static struct video_board vbMystique            = {0x0800000, 0x0800000, FB_ACCEL_MATROX_MGA1064SG,     &matrox_mystique};
1350 #endif  /* CONFIG_FB_MATROX_MYSTIQUE */
1351 #ifdef CONFIG_FB_MATROX_G
1352 static struct video_board vbG100                = {0x0800000, 0x0800000, FB_ACCEL_MATROX_MGAG100,       &matrox_G100};
1353 static struct video_board vbG200                = {0x1000000, 0x1000000, FB_ACCEL_MATROX_MGAG200,       &matrox_G100};
1354 /* from doc it looks like that accelerator can draw only to low 16MB :-( Direct accesses & displaying are OK for
1355    whole 32MB */
1356 static struct video_board vbG400                = {0x2000000, 0x1000000, FB_ACCEL_MATROX_MGAG400,       &matrox_G100};
1357 #endif
1358
1359 #define DEVF_VIDEO64BIT         0x0001
1360 #define DEVF_SWAPS              0x0002
1361 #define DEVF_SRCORG             0x0004
1362 #define DEVF_DUALHEAD           0x0008
1363 #define DEVF_CROSS4MB           0x0010
1364 #define DEVF_TEXT4B             0x0020
1365 /* #define DEVF_recycled        0x0040  */
1366 /* #define DEVF_recycled        0x0080  */
1367 #define DEVF_SUPPORT32MB        0x0100
1368 #define DEVF_ANY_VXRES          0x0200
1369 #define DEVF_TEXT16B            0x0400
1370 #define DEVF_CRTC2              0x0800
1371 #define DEVF_MAVEN_CAPABLE      0x1000
1372 #define DEVF_PANELLINK_CAPABLE  0x2000
1373 #define DEVF_G450DAC            0x4000
1374
1375 #define DEVF_GCORE      (DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB)
1376 #define DEVF_G2CORE     (DEVF_GCORE | DEVF_ANY_VXRES | DEVF_MAVEN_CAPABLE | DEVF_PANELLINK_CAPABLE | DEVF_SRCORG | DEVF_DUALHEAD)
1377 #define DEVF_G100       (DEVF_GCORE) /* no doc, no vxres... */
1378 #define DEVF_G200       (DEVF_G2CORE)
1379 #define DEVF_G400       (DEVF_G2CORE | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2)
1380 /* if you'll find how to drive DFP... */
1381 #define DEVF_G450       (DEVF_GCORE | DEVF_ANY_VXRES | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2 | DEVF_G450DAC | DEVF_SRCORG | DEVF_DUALHEAD)
1382 #define DEVF_G550       (DEVF_G450)
1383
1384 static struct board {
1385         unsigned short vendor, device, rev, svid, sid;
1386         unsigned int flags;
1387         unsigned int maxclk;
1388         enum mga_chip chip;
1389         struct video_board* base;
1390         const char* name;
1391                 } dev_list[] = {
1392 #ifdef CONFIG_FB_MATROX_MILLENIUM
1393         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL,       0xFF,
1394                 0,                      0,
1395                 DEVF_TEXT4B,
1396                 230000,
1397                 MGA_2064,
1398                 &vbMillennium,
1399                 "Millennium (PCI)"},
1400         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2,     0xFF,
1401                 0,                      0,
1402                 DEVF_SWAPS,
1403                 220000,
1404                 MGA_2164,
1405                 &vbMillennium2,
1406                 "Millennium II (PCI)"},
1407         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2_AGP, 0xFF,
1408                 0,                      0,
1409                 DEVF_SWAPS,
1410                 250000,
1411                 MGA_2164,
1412                 &vbMillennium2A,
1413                 "Millennium II (AGP)"},
1414 #endif
1415 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1416         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS,       0x02,
1417                 0,                      0,
1418                 DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1419                 180000,
1420                 MGA_1064,
1421                 &vbMystique,
1422                 "Mystique (PCI)"},
1423         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS,       0xFF,
1424                 0,                      0,
1425                 DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1426                 220000,
1427                 MGA_1164,
1428                 &vbMystique,
1429                 "Mystique 220 (PCI)"},
1430         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS_AGP,   0x02,
1431                 0,                      0,
1432                 DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1433                 180000,
1434                 MGA_1064,
1435                 &vbMystique,
1436                 "Mystique (AGP)"},
1437         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS_AGP,   0xFF,
1438                 0,                      0,
1439                 DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1440                 220000,
1441                 MGA_1164,
1442                 &vbMystique,
1443                 "Mystique 220 (AGP)"},
1444 #endif
1445 #ifdef CONFIG_FB_MATROX_G
1446         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_MM,   0xFF,
1447                 0,                      0,
1448                 DEVF_G100,
1449                 230000,
1450                 MGA_G100,
1451                 &vbG100,
1452                 "MGA-G100 (PCI)"},
1453         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_AGP,  0xFF,
1454                 0,                      0,
1455                 DEVF_G100,
1456                 230000,
1457                 MGA_G100,
1458                 &vbG100,
1459                 "MGA-G100 (AGP)"},
1460         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_PCI,  0xFF,
1461                 0,                      0,
1462                 DEVF_G200,
1463                 250000,
1464                 MGA_G200,
1465                 &vbG200,
1466                 "MGA-G200 (PCI)"},
1467         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1468                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_GENERIC,
1469                 DEVF_G200,
1470                 220000,
1471                 MGA_G200,
1472                 &vbG200,
1473                 "MGA-G200 (AGP)"},
1474         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1475                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP,
1476                 DEVF_G200,
1477                 230000,
1478                 MGA_G200,
1479                 &vbG200,
1480                 "Mystique G200 (AGP)"},
1481         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1482                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MILLENIUM_G200_AGP,
1483                 DEVF_G200,
1484                 250000,
1485                 MGA_G200,
1486                 &vbG200,
1487                 "Millennium G200 (AGP)"},
1488         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1489                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MARVEL_G200_AGP,
1490                 DEVF_G200,
1491                 230000,
1492                 MGA_G200,
1493                 &vbG200,
1494                 "Marvel G200 (AGP)"},
1495         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1496                 PCI_SS_VENDOR_ID_SIEMENS_NIXDORF,       PCI_SS_ID_SIEMENS_MGA_G200_AGP,
1497                 DEVF_G200,
1498                 230000,
1499                 MGA_G200,
1500                 &vbG200,
1501                 "MGA-G200 (AGP)"},
1502         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1503                 0,                      0,
1504                 DEVF_G200,
1505                 230000,
1506                 MGA_G200,
1507                 &vbG200,
1508                 "G200 (AGP)"},
1509         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,      0x80,
1510                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP,
1511                 DEVF_G400,
1512                 360000,
1513                 MGA_G400,
1514                 &vbG400,
1515                 "Millennium G400 MAX (AGP)"},
1516         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,      0x80,
1517                 0,                      0,
1518                 DEVF_G400,
1519                 300000,
1520                 MGA_G400,
1521                 &vbG400,
1522                 "G400 (AGP)"},
1523         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,      0xFF,
1524                 0,                      0,
1525                 DEVF_G450,
1526                 360000,
1527                 MGA_G450,
1528                 &vbG400,
1529                 "G450"},
1530         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G550,      0xFF,
1531                 0,                      0,
1532                 DEVF_G550,
1533                 360000,
1534                 MGA_G550,
1535                 &vbG400,
1536                 "G550"},
1537 #endif
1538         {0,                     0,                              0xFF,
1539                 0,                      0,
1540                 0,
1541                 0,
1542                 0,
1543                 NULL,
1544                 NULL}};
1545
1546 #ifndef MODULE
1547 static struct fb_videomode defaultmode = {
1548         /* 640x480 @ 60Hz, 31.5 kHz */
1549         NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
1550         0, FB_VMODE_NONINTERLACED
1551 };
1552 #endif /* !MODULE */
1553
1554 static int hotplug = 0;
1555
1556 static void setDefaultOutputs(struct matrox_fb_info *minfo)
1557 {
1558         unsigned int i;
1559         const char* ptr;
1560
1561         minfo->outputs[0].default_src = MATROXFB_SRC_CRTC1;
1562         if (minfo->devflags.g450dac) {
1563                 minfo->outputs[1].default_src = MATROXFB_SRC_CRTC1;
1564                 minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1565         } else if (dfp) {
1566                 minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1567         }
1568         ptr = outputs;
1569         for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1570                 char c = *ptr++;
1571
1572                 if (c == 0) {
1573                         break;
1574                 }
1575                 if (c == '0') {
1576                         minfo->outputs[i].default_src = MATROXFB_SRC_NONE;
1577                 } else if (c == '1') {
1578                         minfo->outputs[i].default_src = MATROXFB_SRC_CRTC1;
1579                 } else if (c == '2' && minfo->devflags.crtc2) {
1580                         minfo->outputs[i].default_src = MATROXFB_SRC_CRTC2;
1581                 } else {
1582                         printk(KERN_ERR "matroxfb: Unknown outputs setting\n");
1583                         break;
1584                 }
1585         }
1586         /* Nullify this option for subsequent adapters */
1587         outputs[0] = 0;
1588 }
1589
1590 static int initMatrox2(struct matrox_fb_info *minfo, struct board *b)
1591 {
1592         unsigned long ctrlptr_phys = 0;
1593         unsigned long video_base_phys = 0;
1594         unsigned int memsize;
1595         int err;
1596
1597         static struct pci_device_id intel_82437[] = {
1598                 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437) },
1599                 { },
1600         };
1601
1602         DBG(__func__)
1603
1604         /* set default values... */
1605         vesafb_defined.accel_flags = FB_ACCELF_TEXT;
1606
1607         minfo->hw_switch = b->base->lowlevel;
1608         minfo->devflags.accelerator = b->base->accelID;
1609         minfo->max_pixel_clock = b->maxclk;
1610
1611         printk(KERN_INFO "matroxfb: Matrox %s detected\n", b->name);
1612         minfo->capable.plnwt = 1;
1613         minfo->chip = b->chip;
1614         minfo->capable.srcorg = b->flags & DEVF_SRCORG;
1615         minfo->devflags.video64bits = b->flags & DEVF_VIDEO64BIT;
1616         if (b->flags & DEVF_TEXT4B) {
1617                 minfo->devflags.vgastep = 4;
1618                 minfo->devflags.textmode = 4;
1619                 minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1620         } else if (b->flags & DEVF_TEXT16B) {
1621                 minfo->devflags.vgastep = 16;
1622                 minfo->devflags.textmode = 1;
1623                 minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1624         } else {
1625                 minfo->devflags.vgastep = 8;
1626                 minfo->devflags.textmode = 1;
1627                 minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP8;
1628         }
1629         minfo->devflags.support32MB = (b->flags & DEVF_SUPPORT32MB) != 0;
1630         minfo->devflags.precise_width = !(b->flags & DEVF_ANY_VXRES);
1631         minfo->devflags.crtc2 = (b->flags & DEVF_CRTC2) != 0;
1632         minfo->devflags.maven_capable = (b->flags & DEVF_MAVEN_CAPABLE) != 0;
1633         minfo->devflags.dualhead = (b->flags & DEVF_DUALHEAD) != 0;
1634         minfo->devflags.dfp_type = dfp_type;
1635         minfo->devflags.g450dac = (b->flags & DEVF_G450DAC) != 0;
1636         minfo->devflags.textstep = minfo->devflags.vgastep * minfo->devflags.textmode;
1637         minfo->devflags.textvram = 65536 / minfo->devflags.textmode;
1638         setDefaultOutputs(minfo);
1639         if (b->flags & DEVF_PANELLINK_CAPABLE) {
1640                 minfo->outputs[2].data = minfo;
1641                 minfo->outputs[2].output = &panellink_output;
1642                 minfo->outputs[2].src = minfo->outputs[2].default_src;
1643                 minfo->outputs[2].mode = MATROXFB_OUTPUT_MODE_MONITOR;
1644                 minfo->devflags.panellink = 1;
1645         }
1646
1647         if (minfo->capable.cross4MB < 0)
1648                 minfo->capable.cross4MB = b->flags & DEVF_CROSS4MB;
1649         if (b->flags & DEVF_SWAPS) {
1650                 ctrlptr_phys = pci_resource_start(minfo->pcidev, 1);
1651                 video_base_phys = pci_resource_start(minfo->pcidev, 0);
1652                 minfo->devflags.fbResource = PCI_BASE_ADDRESS_0;
1653         } else {
1654                 ctrlptr_phys = pci_resource_start(minfo->pcidev, 0);
1655                 video_base_phys = pci_resource_start(minfo->pcidev, 1);
1656                 minfo->devflags.fbResource = PCI_BASE_ADDRESS_1;
1657         }
1658         err = -EINVAL;
1659         if (!ctrlptr_phys) {
1660                 printk(KERN_ERR "matroxfb: control registers are not available, matroxfb disabled\n");
1661                 goto fail;
1662         }
1663         if (!video_base_phys) {
1664                 printk(KERN_ERR "matroxfb: video RAM is not available in PCI address space, matroxfb disabled\n");
1665                 goto fail;
1666         }
1667         memsize = b->base->maxvram;
1668         if (!request_mem_region(ctrlptr_phys, 16384, "matroxfb MMIO")) {
1669                 goto fail;
1670         }
1671         if (!request_mem_region(video_base_phys, memsize, "matroxfb FB")) {
1672                 goto failCtrlMR;
1673         }
1674         minfo->video.len_maximum = memsize;
1675         /* convert mem (autodetect k, M) */
1676         if (mem < 1024) mem *= 1024;
1677         if (mem < 0x00100000) mem *= 1024;
1678
1679         if (mem && (mem < memsize))
1680                 memsize = mem;
1681         err = -ENOMEM;
1682         if (mga_ioremap(ctrlptr_phys, 16384, MGA_IOREMAP_MMIO, &minfo->mmio.vbase)) {
1683                 printk(KERN_ERR "matroxfb: cannot ioremap(%lX, 16384), matroxfb disabled\n", ctrlptr_phys);
1684                 goto failVideoMR;
1685         }
1686         minfo->mmio.base = ctrlptr_phys;
1687         minfo->mmio.len = 16384;
1688         minfo->video.base = video_base_phys;
1689         if (mga_ioremap(video_base_phys, memsize, MGA_IOREMAP_FB, &minfo->video.vbase)) {
1690                 printk(KERN_ERR "matroxfb: cannot ioremap(%lX, %d), matroxfb disabled\n",
1691                         video_base_phys, memsize);
1692                 goto failCtrlIO;
1693         }
1694         {
1695                 u_int32_t cmd;
1696                 u_int32_t mga_option;
1697
1698                 pci_read_config_dword(minfo->pcidev, PCI_OPTION_REG, &mga_option);
1699                 pci_read_config_dword(minfo->pcidev, PCI_COMMAND, &cmd);
1700                 mga_option &= 0x7FFFFFFF; /* clear BIG_ENDIAN */
1701                 mga_option |= MX_OPTION_BSWAP;
1702                 /* disable palette snooping */
1703                 cmd &= ~PCI_COMMAND_VGA_PALETTE;
1704                 if (pci_dev_present(intel_82437)) {
1705                         if (!(mga_option & 0x20000000) && !minfo->devflags.nopciretry) {
1706                                 printk(KERN_WARNING "matroxfb: Disabling PCI retries due to i82437 present\n");
1707                         }
1708                         mga_option |= 0x20000000;
1709                         minfo->devflags.nopciretry = 1;
1710                 }
1711                 pci_write_config_dword(minfo->pcidev, PCI_COMMAND, cmd);
1712                 pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, mga_option);
1713                 minfo->hw.MXoptionReg = mga_option;
1714
1715                 /* select non-DMA memory for PCI_MGA_DATA, otherwise dump of PCI cfg space can lock PCI bus */
1716                 /* maybe preinit() candidate, but it is same... for all devices... at this time... */
1717                 pci_write_config_dword(minfo->pcidev, PCI_MGA_INDEX, 0x00003C00);
1718         }
1719
1720         err = -ENXIO;
1721         matroxfb_read_pins(minfo);
1722         if (minfo->hw_switch->preinit(minfo)) {
1723                 goto failVideoIO;
1724         }
1725
1726         err = -ENOMEM;
1727         if (!matroxfb_getmemory(minfo, memsize, &minfo->video.len) || !minfo->video.len) {
1728                 printk(KERN_ERR "matroxfb: cannot determine memory size\n");
1729                 goto failVideoIO;
1730         }
1731         minfo->devflags.ydstorg = 0;
1732
1733         minfo->video.base = video_base_phys;
1734         minfo->video.len_usable = minfo->video.len;
1735         if (minfo->video.len_usable > b->base->maxdisplayable)
1736                 minfo->video.len_usable = b->base->maxdisplayable;
1737 #ifdef CONFIG_MTRR
1738         if (mtrr) {
1739                 minfo->mtrr.vram = mtrr_add(video_base_phys, minfo->video.len, MTRR_TYPE_WRCOMB, 1);
1740                 minfo->mtrr.vram_valid = 1;
1741                 printk(KERN_INFO "matroxfb: MTRR's turned on\n");
1742         }
1743 #endif  /* CONFIG_MTRR */
1744
1745         if (!minfo->devflags.novga)
1746                 request_region(0x3C0, 32, "matrox");
1747         matroxfb_g450_connect(minfo);
1748         minfo->hw_switch->reset(minfo);
1749
1750         minfo->fbcon.monspecs.hfmin = 0;
1751         minfo->fbcon.monspecs.hfmax = fh;
1752         minfo->fbcon.monspecs.vfmin = 0;
1753         minfo->fbcon.monspecs.vfmax = fv;
1754         minfo->fbcon.monspecs.dpms = 0; /* TBD */
1755
1756         /* static settings */
1757         vesafb_defined.red = colors[depth-1].red;
1758         vesafb_defined.green = colors[depth-1].green;
1759         vesafb_defined.blue = colors[depth-1].blue;
1760         vesafb_defined.bits_per_pixel = colors[depth-1].bits_per_pixel;
1761         vesafb_defined.grayscale = grayscale;
1762         vesafb_defined.vmode = 0;
1763         if (noaccel)
1764                 vesafb_defined.accel_flags &= ~FB_ACCELF_TEXT;
1765
1766         minfo->fbops = matroxfb_ops;
1767         minfo->fbcon.fbops = &minfo->fbops;
1768         minfo->fbcon.pseudo_palette = minfo->cmap;
1769         /* after __init time we are like module... no logo */
1770         minfo->fbcon.flags = hotplug ? FBINFO_FLAG_MODULE : FBINFO_FLAG_DEFAULT;
1771         minfo->fbcon.flags |= FBINFO_PARTIAL_PAN_OK |    /* Prefer panning for scroll under MC viewer/edit */
1772                                       FBINFO_HWACCEL_COPYAREA |  /* We have hw-assisted bmove */
1773                                       FBINFO_HWACCEL_FILLRECT |  /* And fillrect */
1774                                       FBINFO_HWACCEL_IMAGEBLIT | /* And imageblit */
1775                                       FBINFO_HWACCEL_XPAN |      /* And we support both horizontal */
1776                                       FBINFO_HWACCEL_YPAN |      /* And vertical panning */
1777                                       FBINFO_READS_FAST;
1778         minfo->video.len_usable &= PAGE_MASK;
1779         fb_alloc_cmap(&minfo->fbcon.cmap, 256, 1);
1780
1781 #ifndef MODULE
1782         /* mode database is marked __init!!! */
1783         if (!hotplug) {
1784                 fb_find_mode(&vesafb_defined, &minfo->fbcon, videomode[0] ? videomode : NULL,
1785                         NULL, 0, &defaultmode, vesafb_defined.bits_per_pixel);
1786         }
1787 #endif /* !MODULE */
1788
1789         /* mode modifiers */
1790         if (hslen)
1791                 vesafb_defined.hsync_len = hslen;
1792         if (vslen)
1793                 vesafb_defined.vsync_len = vslen;
1794         if (left != ~0)
1795                 vesafb_defined.left_margin = left;
1796         if (right != ~0)
1797                 vesafb_defined.right_margin = right;
1798         if (upper != ~0)
1799                 vesafb_defined.upper_margin = upper;
1800         if (lower != ~0)
1801                 vesafb_defined.lower_margin = lower;
1802         if (xres)
1803                 vesafb_defined.xres = xres;
1804         if (yres)
1805                 vesafb_defined.yres = yres;
1806         if (sync != -1)
1807                 vesafb_defined.sync = sync;
1808         else if (vesafb_defined.sync == ~0) {
1809                 vesafb_defined.sync = 0;
1810                 if (yres < 400)
1811                         vesafb_defined.sync |= FB_SYNC_HOR_HIGH_ACT;
1812                 else if (yres < 480)
1813                         vesafb_defined.sync |= FB_SYNC_VERT_HIGH_ACT;
1814         }
1815
1816         /* fv, fh, maxclk limits was specified */
1817         {
1818                 unsigned int tmp;
1819
1820                 if (fv) {
1821                         tmp = fv * (vesafb_defined.upper_margin + vesafb_defined.yres
1822                                   + vesafb_defined.lower_margin + vesafb_defined.vsync_len);
1823                         if ((tmp < fh) || (fh == 0)) fh = tmp;
1824                 }
1825                 if (fh) {
1826                         tmp = fh * (vesafb_defined.left_margin + vesafb_defined.xres
1827                                   + vesafb_defined.right_margin + vesafb_defined.hsync_len);
1828                         if ((tmp < maxclk) || (maxclk == 0)) maxclk = tmp;
1829                 }
1830                 tmp = (maxclk + 499) / 500;
1831                 if (tmp) {
1832                         tmp = (2000000000 + tmp) / tmp;
1833                         if (tmp > pixclock) pixclock = tmp;
1834                 }
1835         }
1836         if (pixclock) {
1837                 if (pixclock < 2000)            /* > 500MHz */
1838                         pixclock = 4000;        /* 250MHz */
1839                 if (pixclock > 1000000)
1840                         pixclock = 1000000;     /* 1MHz */
1841                 vesafb_defined.pixclock = pixclock;
1842         }
1843
1844         /* FIXME: Where to move this?! */
1845 #if defined(CONFIG_PPC_PMAC)
1846 #ifndef MODULE
1847         if (machine_is(powermac)) {
1848                 struct fb_var_screeninfo var;
1849                 if (default_vmode <= 0 || default_vmode > VMODE_MAX)
1850                         default_vmode = VMODE_640_480_60;
1851 #ifdef CONFIG_NVRAM
1852                 if (default_cmode == CMODE_NVRAM)
1853                         default_cmode = nvram_read_byte(NV_CMODE);
1854 #endif
1855                 if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
1856                         default_cmode = CMODE_8;
1857                 if (!mac_vmode_to_var(default_vmode, default_cmode, &var)) {
1858                         var.accel_flags = vesafb_defined.accel_flags;
1859                         var.xoffset = var.yoffset = 0;
1860                         /* Note: mac_vmode_to_var() does not set all parameters */
1861                         vesafb_defined = var;
1862                 }
1863         }
1864 #endif /* !MODULE */
1865 #endif /* CONFIG_PPC_PMAC */
1866         vesafb_defined.xres_virtual = vesafb_defined.xres;
1867         if (nopan) {
1868                 vesafb_defined.yres_virtual = vesafb_defined.yres;
1869         } else {
1870                 vesafb_defined.yres_virtual = 65536; /* large enough to be INF, but small enough
1871                                                         to yres_virtual * xres_virtual < 2^32 */
1872         }
1873         matroxfb_init_fix(minfo);
1874         minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase);
1875         /* Normalize values (namely yres_virtual) */
1876         matroxfb_check_var(&vesafb_defined, &minfo->fbcon);
1877         /* And put it into "current" var. Do NOT program hardware yet, or we'll not take over
1878          * vgacon correctly. fbcon_startup will call fb_set_par for us, WITHOUT check_var,
1879          * and unfortunately it will do it BEFORE vgacon contents is saved, so it won't work
1880          * anyway. But we at least tried... */
1881         minfo->fbcon.var = vesafb_defined;
1882         err = -EINVAL;
1883
1884         printk(KERN_INFO "matroxfb: %dx%dx%dbpp (virtual: %dx%d)\n",
1885                 vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel,
1886                 vesafb_defined.xres_virtual, vesafb_defined.yres_virtual);
1887         printk(KERN_INFO "matroxfb: framebuffer at 0x%lX, mapped to 0x%p, size %d\n",
1888                 minfo->video.base, vaddr_va(minfo->video.vbase), minfo->video.len);
1889
1890 /* We do not have to set currcon to 0... register_framebuffer do it for us on first console
1891  * and we do not want currcon == 0 for subsequent framebuffers */
1892
1893         minfo->fbcon.device = &minfo->pcidev->dev;
1894         if (register_framebuffer(&minfo->fbcon) < 0) {
1895                 goto failVideoIO;
1896         }
1897         fb_info(&minfo->fbcon, "%s frame buffer device\n", minfo->fbcon.fix.id);
1898
1899         /* there is no console on this fb... but we have to initialize hardware
1900          * until someone tells me what is proper thing to do */
1901         if (!minfo->initialized) {
1902                 fb_info(&minfo->fbcon, "initializing hardware\n");
1903                 /* We have to use FB_ACTIVATE_FORCE, as we had to put vesafb_defined to the fbcon.var
1904                  * already before, so register_framebuffer works correctly. */
1905                 vesafb_defined.activate |= FB_ACTIVATE_FORCE;
1906                 fb_set_var(&minfo->fbcon, &vesafb_defined);
1907         }
1908
1909         return 0;
1910 failVideoIO:;
1911         matroxfb_g450_shutdown(minfo);
1912         mga_iounmap(minfo->video.vbase);
1913 failCtrlIO:;
1914         mga_iounmap(minfo->mmio.vbase);
1915 failVideoMR:;
1916         release_mem_region(video_base_phys, minfo->video.len_maximum);
1917 failCtrlMR:;
1918         release_mem_region(ctrlptr_phys, 16384);
1919 fail:;
1920         return err;
1921 }
1922
1923 static LIST_HEAD(matroxfb_list);
1924 static LIST_HEAD(matroxfb_driver_list);
1925
1926 #define matroxfb_l(x) list_entry(x, struct matrox_fb_info, next_fb)
1927 #define matroxfb_driver_l(x) list_entry(x, struct matroxfb_driver, node)
1928 int matroxfb_register_driver(struct matroxfb_driver* drv) {
1929         struct matrox_fb_info* minfo;
1930
1931         list_add(&drv->node, &matroxfb_driver_list);
1932         for (minfo = matroxfb_l(matroxfb_list.next);
1933              minfo != matroxfb_l(&matroxfb_list);
1934              minfo = matroxfb_l(minfo->next_fb.next)) {
1935                 void* p;
1936
1937                 if (minfo->drivers_count == MATROXFB_MAX_FB_DRIVERS)
1938                         continue;
1939                 p = drv->probe(minfo);
1940                 if (p) {
1941                         minfo->drivers_data[minfo->drivers_count] = p;
1942                         minfo->drivers[minfo->drivers_count++] = drv;
1943                 }
1944         }
1945         return 0;
1946 }
1947
1948 void matroxfb_unregister_driver(struct matroxfb_driver* drv) {
1949         struct matrox_fb_info* minfo;
1950
1951         list_del(&drv->node);
1952         for (minfo = matroxfb_l(matroxfb_list.next);
1953              minfo != matroxfb_l(&matroxfb_list);
1954              minfo = matroxfb_l(minfo->next_fb.next)) {
1955                 int i;
1956
1957                 for (i = 0; i < minfo->drivers_count; ) {
1958                         if (minfo->drivers[i] == drv) {
1959                                 if (drv && drv->remove)
1960                                         drv->remove(minfo, minfo->drivers_data[i]);
1961                                 minfo->drivers[i] = minfo->drivers[--minfo->drivers_count];
1962                                 minfo->drivers_data[i] = minfo->drivers_data[minfo->drivers_count];
1963                         } else
1964                                 i++;
1965                 }
1966         }
1967 }
1968
1969 static void matroxfb_register_device(struct matrox_fb_info* minfo) {
1970         struct matroxfb_driver* drv;
1971         int i = 0;
1972         list_add(&minfo->next_fb, &matroxfb_list);
1973         for (drv = matroxfb_driver_l(matroxfb_driver_list.next);
1974              drv != matroxfb_driver_l(&matroxfb_driver_list);
1975              drv = matroxfb_driver_l(drv->node.next)) {
1976                 if (drv && drv->probe) {
1977                         void *p = drv->probe(minfo);
1978                         if (p) {
1979                                 minfo->drivers_data[i] = p;
1980                                 minfo->drivers[i++] = drv;
1981                                 if (i == MATROXFB_MAX_FB_DRIVERS)
1982                                         break;
1983                         }
1984                 }
1985         }
1986         minfo->drivers_count = i;
1987 }
1988
1989 static void matroxfb_unregister_device(struct matrox_fb_info* minfo) {
1990         int i;
1991
1992         list_del(&minfo->next_fb);
1993         for (i = 0; i < minfo->drivers_count; i++) {
1994                 struct matroxfb_driver* drv = minfo->drivers[i];
1995
1996                 if (drv && drv->remove)
1997                         drv->remove(minfo, minfo->drivers_data[i]);
1998         }
1999 }
2000
2001 static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dummy) {
2002         struct board* b;
2003         u_int16_t svid;
2004         u_int16_t sid;
2005         struct matrox_fb_info* minfo;
2006         int err;
2007         u_int32_t cmd;
2008         DBG(__func__)
2009
2010         svid = pdev->subsystem_vendor;
2011         sid = pdev->subsystem_device;
2012         for (b = dev_list; b->vendor; b++) {
2013                 if ((b->vendor != pdev->vendor) || (b->device != pdev->device) || (b->rev < pdev->revision)) continue;
2014                 if (b->svid)
2015                         if ((b->svid != svid) || (b->sid != sid)) continue;
2016                 break;
2017         }
2018         /* not match... */
2019         if (!b->vendor)
2020                 return -ENODEV;
2021         if (dev > 0) {
2022                 /* not requested one... */
2023                 dev--;
2024                 return -ENODEV;
2025         }
2026         pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
2027         if (pci_enable_device(pdev)) {
2028                 return -1;
2029         }
2030
2031         minfo = kzalloc(sizeof(*minfo), GFP_KERNEL);
2032         if (!minfo)
2033                 return -1;
2034
2035         minfo->pcidev = pdev;
2036         minfo->dead = 0;
2037         minfo->usecount = 0;
2038         minfo->userusecount = 0;
2039
2040         pci_set_drvdata(pdev, minfo);
2041         /* DEVFLAGS */
2042         minfo->devflags.memtype = memtype;
2043         if (memtype != -1)
2044                 noinit = 0;
2045         if (cmd & PCI_COMMAND_MEMORY) {
2046                 minfo->devflags.novga = novga;
2047                 minfo->devflags.nobios = nobios;
2048                 minfo->devflags.noinit = noinit;
2049                 /* subsequent heads always needs initialization and must not enable BIOS */
2050                 novga = 1;
2051                 nobios = 1;
2052                 noinit = 0;
2053         } else {
2054                 minfo->devflags.novga = 1;
2055                 minfo->devflags.nobios = 1;
2056                 minfo->devflags.noinit = 0;
2057         }
2058
2059         minfo->devflags.nopciretry = no_pci_retry;
2060         minfo->devflags.mga_24bpp_fix = inv24;
2061         minfo->devflags.precise_width = option_precise_width;
2062         minfo->devflags.sgram = sgram;
2063         minfo->capable.cross4MB = cross4MB;
2064
2065         spin_lock_init(&minfo->lock.DAC);
2066         spin_lock_init(&minfo->lock.accel);
2067         init_rwsem(&minfo->crtc2.lock);
2068         init_rwsem(&minfo->altout.lock);
2069         mutex_init(&minfo->fbcon.mm_lock);
2070         minfo->irq_flags = 0;
2071         init_waitqueue_head(&minfo->crtc1.vsync.wait);
2072         init_waitqueue_head(&minfo->crtc2.vsync.wait);
2073         minfo->crtc1.panpos = -1;
2074
2075         err = initMatrox2(minfo, b);
2076         if (!err) {
2077                 matroxfb_register_device(minfo);
2078                 return 0;
2079         }
2080         kfree(minfo);
2081         return -1;
2082 }
2083
2084 static void pci_remove_matrox(struct pci_dev* pdev) {
2085         struct matrox_fb_info* minfo;
2086
2087         minfo = pci_get_drvdata(pdev);
2088         matroxfb_remove(minfo, 1);
2089 }
2090
2091 static struct pci_device_id matroxfb_devices[] = {
2092 #ifdef CONFIG_FB_MATROX_MILLENIUM
2093         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL,
2094                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2095         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2,
2096                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2097         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2_AGP,
2098                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2099 #endif
2100 #ifdef CONFIG_FB_MATROX_MYSTIQUE
2101         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS,
2102                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2103 #endif
2104 #ifdef CONFIG_FB_MATROX_G
2105         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_MM,
2106                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2107         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_AGP,
2108                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2109         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_PCI,
2110                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2111         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,
2112                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2113         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,
2114                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2115         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G550,
2116                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2117 #endif
2118         {0,                     0,
2119                 0,              0,              0, 0, 0}
2120 };
2121
2122 MODULE_DEVICE_TABLE(pci, matroxfb_devices);
2123
2124
2125 static struct pci_driver matroxfb_driver = {
2126         .name =         "matroxfb",
2127         .id_table =     matroxfb_devices,
2128         .probe =        matroxfb_probe,
2129         .remove =       pci_remove_matrox,
2130 };
2131
2132 /* **************************** init-time only **************************** */
2133
2134 #define RSResolution(X) ((X) & 0x0F)
2135 #define RS640x400       1
2136 #define RS640x480       2
2137 #define RS800x600       3
2138 #define RS1024x768      4
2139 #define RS1280x1024     5
2140 #define RS1600x1200     6
2141 #define RS768x576       7
2142 #define RS960x720       8
2143 #define RS1152x864      9
2144 #define RS1408x1056     10
2145 #define RS640x350       11
2146 #define RS1056x344      12      /* 132 x 43 text */
2147 #define RS1056x400      13      /* 132 x 50 text */
2148 #define RS1056x480      14      /* 132 x 60 text */
2149 #define RSNoxNo         15
2150 /* 10-FF */
2151 static struct { int xres, yres, left, right, upper, lower, hslen, vslen, vfreq; } timmings[] __initdata = {
2152         {  640,  400,  48, 16, 39,  8,  96, 2, 70 },
2153         {  640,  480,  48, 16, 33, 10,  96, 2, 60 },
2154         {  800,  600, 144, 24, 28,  8, 112, 6, 60 },
2155         { 1024,  768, 160, 32, 30,  4, 128, 4, 60 },
2156         { 1280, 1024, 224, 32, 32,  4, 136, 4, 60 },
2157         { 1600, 1200, 272, 48, 32,  5, 152, 5, 60 },
2158         {  768,  576, 144, 16, 28,  6, 112, 4, 60 },
2159         {  960,  720, 144, 24, 28,  8, 112, 4, 60 },
2160         { 1152,  864, 192, 32, 30,  4, 128, 4, 60 },
2161         { 1408, 1056, 256, 40, 32,  5, 144, 5, 60 },
2162         {  640,  350,  48, 16, 39,  8,  96, 2, 70 },
2163         { 1056,  344,  96, 24, 59, 44, 160, 2, 70 },
2164         { 1056,  400,  96, 24, 39,  8, 160, 2, 70 },
2165         { 1056,  480,  96, 24, 36, 12, 160, 3, 60 },
2166         {    0,    0,  ~0, ~0, ~0, ~0,   0, 0,  0 }
2167 };
2168
2169 #define RSCreate(X,Y)   ((X) | ((Y) << 8))
2170 static struct { unsigned int vesa; unsigned int info; } *RSptr, vesamap[] __initdata = {
2171 /* default must be first */
2172         {    ~0, RSCreate(RSNoxNo,     RS8bpp ) },
2173         { 0x101, RSCreate(RS640x480,   RS8bpp ) },
2174         { 0x100, RSCreate(RS640x400,   RS8bpp ) },
2175         { 0x180, RSCreate(RS768x576,   RS8bpp ) },
2176         { 0x103, RSCreate(RS800x600,   RS8bpp ) },
2177         { 0x188, RSCreate(RS960x720,   RS8bpp ) },
2178         { 0x105, RSCreate(RS1024x768,  RS8bpp ) },
2179         { 0x190, RSCreate(RS1152x864,  RS8bpp ) },
2180         { 0x107, RSCreate(RS1280x1024, RS8bpp ) },
2181         { 0x198, RSCreate(RS1408x1056, RS8bpp ) },
2182         { 0x11C, RSCreate(RS1600x1200, RS8bpp ) },
2183         { 0x110, RSCreate(RS640x480,   RS15bpp) },
2184         { 0x181, RSCreate(RS768x576,   RS15bpp) },
2185         { 0x113, RSCreate(RS800x600,   RS15bpp) },
2186         { 0x189, RSCreate(RS960x720,   RS15bpp) },
2187         { 0x116, RSCreate(RS1024x768,  RS15bpp) },
2188         { 0x191, RSCreate(RS1152x864,  RS15bpp) },
2189         { 0x119, RSCreate(RS1280x1024, RS15bpp) },
2190         { 0x199, RSCreate(RS1408x1056, RS15bpp) },
2191         { 0x11D, RSCreate(RS1600x1200, RS15bpp) },
2192         { 0x111, RSCreate(RS640x480,   RS16bpp) },
2193         { 0x182, RSCreate(RS768x576,   RS16bpp) },
2194         { 0x114, RSCreate(RS800x600,   RS16bpp) },
2195         { 0x18A, RSCreate(RS960x720,   RS16bpp) },
2196         { 0x117, RSCreate(RS1024x768,  RS16bpp) },
2197         { 0x192, RSCreate(RS1152x864,  RS16bpp) },
2198         { 0x11A, RSCreate(RS1280x1024, RS16bpp) },
2199         { 0x19A, RSCreate(RS1408x1056, RS16bpp) },
2200         { 0x11E, RSCreate(RS1600x1200, RS16bpp) },
2201         { 0x1B2, RSCreate(RS640x480,   RS24bpp) },
2202         { 0x184, RSCreate(RS768x576,   RS24bpp) },
2203         { 0x1B5, RSCreate(RS800x600,   RS24bpp) },
2204         { 0x18C, RSCreate(RS960x720,   RS24bpp) },
2205         { 0x1B8, RSCreate(RS1024x768,  RS24bpp) },
2206         { 0x194, RSCreate(RS1152x864,  RS24bpp) },
2207         { 0x1BB, RSCreate(RS1280x1024, RS24bpp) },
2208         { 0x19C, RSCreate(RS1408x1056, RS24bpp) },
2209         { 0x1BF, RSCreate(RS1600x1200, RS24bpp) },
2210         { 0x112, RSCreate(RS640x480,   RS32bpp) },
2211         { 0x183, RSCreate(RS768x576,   RS32bpp) },
2212         { 0x115, RSCreate(RS800x600,   RS32bpp) },
2213         { 0x18B, RSCreate(RS960x720,   RS32bpp) },
2214         { 0x118, RSCreate(RS1024x768,  RS32bpp) },
2215         { 0x193, RSCreate(RS1152x864,  RS32bpp) },
2216         { 0x11B, RSCreate(RS1280x1024, RS32bpp) },
2217         { 0x19B, RSCreate(RS1408x1056, RS32bpp) },
2218         { 0x11F, RSCreate(RS1600x1200, RS32bpp) },
2219         { 0x010, RSCreate(RS640x350,   RS4bpp ) },
2220         { 0x012, RSCreate(RS640x480,   RS4bpp ) },
2221         { 0x102, RSCreate(RS800x600,   RS4bpp ) },
2222         { 0x104, RSCreate(RS1024x768,  RS4bpp ) },
2223         { 0x106, RSCreate(RS1280x1024, RS4bpp ) },
2224         {     0, 0                              }};
2225
2226 static void __init matroxfb_init_params(void) {
2227         /* fh from kHz to Hz */
2228         if (fh < 1000)
2229                 fh *= 1000;     /* 1kHz minimum */
2230         /* maxclk */
2231         if (maxclk < 1000) maxclk *= 1000;      /* kHz -> Hz, MHz -> kHz */
2232         if (maxclk < 1000000) maxclk *= 1000;   /* kHz -> Hz, 1MHz minimum */
2233         /* fix VESA number */
2234         if (vesa != ~0)
2235                 vesa &= 0x1DFF;         /* mask out clearscreen, acceleration and so on */
2236
2237         /* static settings */
2238         for (RSptr = vesamap; RSptr->vesa; RSptr++) {
2239                 if (RSptr->vesa == vesa) break;
2240         }
2241         if (!RSptr->vesa) {
2242                 printk(KERN_ERR "Invalid vesa mode 0x%04X\n", vesa);
2243                 RSptr = vesamap;
2244         }
2245         {
2246                 int res = RSResolution(RSptr->info)-1;
2247                 if (left == ~0)
2248                         left = timmings[res].left;
2249                 if (!xres)
2250                         xres = timmings[res].xres;
2251                 if (right == ~0)
2252                         right = timmings[res].right;
2253                 if (!hslen)
2254                         hslen = timmings[res].hslen;
2255                 if (upper == ~0)
2256                         upper = timmings[res].upper;
2257                 if (!yres)
2258                         yres = timmings[res].yres;
2259                 if (lower == ~0)
2260                         lower = timmings[res].lower;
2261                 if (!vslen)
2262                         vslen = timmings[res].vslen;
2263                 if (!(fv||fh||maxclk||pixclock))
2264                         fv = timmings[res].vfreq;
2265                 if (depth == -1)
2266                         depth = RSDepth(RSptr->info);
2267         }
2268 }
2269
2270 static int __init matrox_init(void) {
2271         int err;
2272
2273         matroxfb_init_params();
2274         err = pci_register_driver(&matroxfb_driver);
2275         dev = -1;       /* accept all new devices... */
2276         return err;
2277 }
2278
2279 /* **************************** exit-time only **************************** */
2280
2281 static void __exit matrox_done(void) {
2282         pci_unregister_driver(&matroxfb_driver);
2283 }
2284
2285 #ifndef MODULE
2286
2287 /* ************************* init in-kernel code ************************** */
2288
2289 static int __init matroxfb_setup(char *options) {
2290         char *this_opt;
2291
2292         DBG(__func__)
2293
2294         if (!options || !*options)
2295                 return 0;
2296
2297         while ((this_opt = strsep(&options, ",")) != NULL) {
2298                 if (!*this_opt) continue;
2299
2300                 dprintk("matroxfb_setup: option %s\n", this_opt);
2301
2302                 if (!strncmp(this_opt, "dev:", 4))
2303                         dev = simple_strtoul(this_opt+4, NULL, 0);
2304                 else if (!strncmp(this_opt, "depth:", 6)) {
2305                         switch (simple_strtoul(this_opt+6, NULL, 0)) {
2306                                 case 0: depth = RSText; break;
2307                                 case 4: depth = RS4bpp; break;
2308                                 case 8: depth = RS8bpp; break;
2309                                 case 15:depth = RS15bpp; break;
2310                                 case 16:depth = RS16bpp; break;
2311                                 case 24:depth = RS24bpp; break;
2312                                 case 32:depth = RS32bpp; break;
2313                                 default:
2314                                         printk(KERN_ERR "matroxfb: unsupported color depth\n");
2315                         }
2316                 } else if (!strncmp(this_opt, "xres:", 5))
2317                         xres = simple_strtoul(this_opt+5, NULL, 0);
2318                 else if (!strncmp(this_opt, "yres:", 5))
2319                         yres = simple_strtoul(this_opt+5, NULL, 0);
2320                 else if (!strncmp(this_opt, "vslen:", 6))
2321                         vslen = simple_strtoul(this_opt+6, NULL, 0);
2322                 else if (!strncmp(this_opt, "hslen:", 6))
2323                         hslen = simple_strtoul(this_opt+6, NULL, 0);
2324                 else if (!strncmp(this_opt, "left:", 5))
2325                         left = simple_strtoul(this_opt+5, NULL, 0);
2326                 else if (!strncmp(this_opt, "right:", 6))
2327                         right = simple_strtoul(this_opt+6, NULL, 0);
2328                 else if (!strncmp(this_opt, "upper:", 6))
2329                         upper = simple_strtoul(this_opt+6, NULL, 0);
2330                 else if (!strncmp(this_opt, "lower:", 6))
2331                         lower = simple_strtoul(this_opt+6, NULL, 0);
2332                 else if (!strncmp(this_opt, "pixclock:", 9))
2333                         pixclock = simple_strtoul(this_opt+9, NULL, 0);
2334                 else if (!strncmp(this_opt, "sync:", 5))
2335                         sync = simple_strtoul(this_opt+5, NULL, 0);
2336                 else if (!strncmp(this_opt, "vesa:", 5))
2337                         vesa = simple_strtoul(this_opt+5, NULL, 0);
2338                 else if (!strncmp(this_opt, "maxclk:", 7))
2339                         maxclk = simple_strtoul(this_opt+7, NULL, 0);
2340                 else if (!strncmp(this_opt, "fh:", 3))
2341                         fh = simple_strtoul(this_opt+3, NULL, 0);
2342                 else if (!strncmp(this_opt, "fv:", 3))
2343                         fv = simple_strtoul(this_opt+3, NULL, 0);
2344                 else if (!strncmp(this_opt, "mem:", 4))
2345                         mem = simple_strtoul(this_opt+4, NULL, 0);
2346                 else if (!strncmp(this_opt, "mode:", 5))
2347                         strlcpy(videomode, this_opt+5, sizeof(videomode));
2348                 else if (!strncmp(this_opt, "outputs:", 8))
2349                         strlcpy(outputs, this_opt+8, sizeof(outputs));
2350                 else if (!strncmp(this_opt, "dfp:", 4)) {
2351                         dfp_type = simple_strtoul(this_opt+4, NULL, 0);
2352                         dfp = 1;
2353                 }
2354 #ifdef CONFIG_PPC_PMAC
2355                 else if (!strncmp(this_opt, "vmode:", 6)) {
2356                         unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
2357                         if (vmode > 0 && vmode <= VMODE_MAX)
2358                                 default_vmode = vmode;
2359                 } else if (!strncmp(this_opt, "cmode:", 6)) {
2360                         unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
2361                         switch (cmode) {
2362                                 case 0:
2363                                 case 8:
2364                                         default_cmode = CMODE_8;
2365                                         break;
2366                                 case 15:
2367                                 case 16:
2368                                         default_cmode = CMODE_16;
2369                                         break;
2370                                 case 24:
2371                                 case 32:
2372                                         default_cmode = CMODE_32;
2373                                         break;
2374                         }
2375                 }
2376 #endif
2377                 else if (!strcmp(this_opt, "disabled")) /* nodisabled does not exist */
2378                         disabled = 1;
2379                 else if (!strcmp(this_opt, "enabled"))  /* noenabled does not exist */
2380                         disabled = 0;
2381                 else if (!strcmp(this_opt, "sgram"))    /* nosgram == sdram */
2382                         sgram = 1;
2383                 else if (!strcmp(this_opt, "sdram"))
2384                         sgram = 0;
2385                 else if (!strncmp(this_opt, "memtype:", 8))
2386                         memtype = simple_strtoul(this_opt+8, NULL, 0);
2387                 else {
2388                         int value = 1;
2389
2390                         if (!strncmp(this_opt, "no", 2)) {
2391                                 value = 0;
2392                                 this_opt += 2;
2393                         }
2394                         if (! strcmp(this_opt, "inverse"))
2395                                 inverse = value;
2396                         else if (!strcmp(this_opt, "accel"))
2397                                 noaccel = !value;
2398                         else if (!strcmp(this_opt, "pan"))
2399                                 nopan = !value;
2400                         else if (!strcmp(this_opt, "pciretry"))
2401                                 no_pci_retry = !value;
2402                         else if (!strcmp(this_opt, "vga"))
2403                                 novga = !value;
2404                         else if (!strcmp(this_opt, "bios"))
2405                                 nobios = !value;
2406                         else if (!strcmp(this_opt, "init"))
2407                                 noinit = !value;
2408 #ifdef CONFIG_MTRR
2409                         else if (!strcmp(this_opt, "mtrr"))
2410                                 mtrr = value;
2411 #endif
2412                         else if (!strcmp(this_opt, "inv24"))
2413                                 inv24 = value;
2414                         else if (!strcmp(this_opt, "cross4MB"))
2415                                 cross4MB = value;
2416                         else if (!strcmp(this_opt, "grayscale"))
2417                                 grayscale = value;
2418                         else if (!strcmp(this_opt, "dfp"))
2419                                 dfp = value;
2420                         else {
2421                                 strlcpy(videomode, this_opt, sizeof(videomode));
2422                         }
2423                 }
2424         }
2425         return 0;
2426 }
2427
2428 static int __initdata initialized = 0;
2429
2430 static int __init matroxfb_init(void)
2431 {
2432         char *option = NULL;
2433         int err = 0;
2434
2435         DBG(__func__)
2436
2437         if (fb_get_options("matroxfb", &option))
2438                 return -ENODEV;
2439         matroxfb_setup(option);
2440
2441         if (disabled)
2442                 return -ENXIO;
2443         if (!initialized) {
2444                 initialized = 1;
2445                 err = matrox_init();
2446         }
2447         hotplug = 1;
2448         /* never return failure, user can hotplug matrox later... */
2449         return err;
2450 }
2451
2452 module_init(matroxfb_init);
2453
2454 #else
2455
2456 /* *************************** init module code **************************** */
2457
2458 MODULE_AUTHOR("(c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
2459 MODULE_DESCRIPTION("Accelerated FBDev driver for Matrox Millennium/Mystique/G100/G200/G400/G450/G550");
2460 MODULE_LICENSE("GPL");
2461
2462 module_param(mem, int, 0);
2463 MODULE_PARM_DESC(mem, "Size of available memory in MB, KB or B (2,4,8,12,16MB, default=autodetect)");
2464 module_param(disabled, int, 0);
2465 MODULE_PARM_DESC(disabled, "Disabled (0 or 1=disabled) (default=0)");
2466 module_param(noaccel, int, 0);
2467 MODULE_PARM_DESC(noaccel, "Do not use accelerating engine (0 or 1=disabled) (default=0)");
2468 module_param(nopan, int, 0);
2469 MODULE_PARM_DESC(nopan, "Disable pan on startup (0 or 1=disabled) (default=0)");
2470 module_param(no_pci_retry, int, 0);
2471 MODULE_PARM_DESC(no_pci_retry, "PCI retries enabled (0 or 1=disabled) (default=0)");
2472 module_param(novga, int, 0);
2473 MODULE_PARM_DESC(novga, "VGA I/O (0x3C0-0x3DF) disabled (0 or 1=disabled) (default=0)");
2474 module_param(nobios, int, 0);
2475 MODULE_PARM_DESC(nobios, "Disables ROM BIOS (0 or 1=disabled) (default=do not change BIOS state)");
2476 module_param(noinit, int, 0);
2477 MODULE_PARM_DESC(noinit, "Disables W/SG/SD-RAM and bus interface initialization (0 or 1=do not initialize) (default=0)");
2478 module_param(memtype, int, 0);
2479 MODULE_PARM_DESC(memtype, "Memory type for G200/G400 (see Documentation/fb/matroxfb.txt for explanation) (default=3 for G200, 0 for G400)");
2480 #ifdef CONFIG_MTRR
2481 module_param(mtrr, int, 0);
2482 MODULE_PARM_DESC(mtrr, "This speeds up video memory accesses (0=disabled or 1) (default=1)");
2483 #endif
2484 module_param(sgram, int, 0);
2485 MODULE_PARM_DESC(sgram, "Indicates that G100/G200/G400 has SGRAM memory (0=SDRAM, 1=SGRAM) (default=0)");
2486 module_param(inv24, int, 0);
2487 MODULE_PARM_DESC(inv24, "Inverts clock polarity for 24bpp and loop frequency > 100MHz (default=do not invert polarity)");
2488 module_param(inverse, int, 0);
2489 MODULE_PARM_DESC(inverse, "Inverse (0 or 1) (default=0)");
2490 module_param(dev, int, 0);
2491 MODULE_PARM_DESC(dev, "Multihead support, attach to device ID (0..N) (default=all working)");
2492 module_param(vesa, int, 0);
2493 MODULE_PARM_DESC(vesa, "Startup videomode (0x000-0x1FF) (default=0x101)");
2494 module_param(xres, int, 0);
2495 MODULE_PARM_DESC(xres, "Horizontal resolution (px), overrides xres from vesa (default=vesa)");
2496 module_param(yres, int, 0);
2497 MODULE_PARM_DESC(yres, "Vertical resolution (scans), overrides yres from vesa (default=vesa)");
2498 module_param(upper, int, 0);
2499 MODULE_PARM_DESC(upper, "Upper blank space (scans), overrides upper from vesa (default=vesa)");
2500 module_param(lower, int, 0);
2501 MODULE_PARM_DESC(lower, "Lower blank space (scans), overrides lower from vesa (default=vesa)");
2502 module_param(vslen, int, 0);
2503 MODULE_PARM_DESC(vslen, "Vertical sync length (scans), overrides lower from vesa (default=vesa)");
2504 module_param(left, int, 0);
2505 MODULE_PARM_DESC(left, "Left blank space (px), overrides left from vesa (default=vesa)");
2506 module_param(right, int, 0);
2507 MODULE_PARM_DESC(right, "Right blank space (px), overrides right from vesa (default=vesa)");
2508 module_param(hslen, int, 0);
2509 MODULE_PARM_DESC(hslen, "Horizontal sync length (px), overrides hslen from vesa (default=vesa)");
2510 module_param(pixclock, int, 0);
2511 MODULE_PARM_DESC(pixclock, "Pixelclock (ns), overrides pixclock from vesa (default=vesa)");
2512 module_param(sync, int, 0);
2513 MODULE_PARM_DESC(sync, "Sync polarity, overrides sync from vesa (default=vesa)");
2514 module_param(depth, int, 0);
2515 MODULE_PARM_DESC(depth, "Color depth (0=text,8,15,16,24,32) (default=vesa)");
2516 module_param(maxclk, int, 0);
2517 MODULE_PARM_DESC(maxclk, "Startup maximal clock, 0-999MHz, 1000-999999kHz, 1000000-INF Hz");
2518 module_param(fh, int, 0);
2519 MODULE_PARM_DESC(fh, "Startup horizontal frequency, 0-999kHz, 1000-INF Hz");
2520 module_param(fv, int, 0);
2521 MODULE_PARM_DESC(fv, "Startup vertical frequency, 0-INF Hz\n"
2522 "You should specify \"fv:max_monitor_vsync,fh:max_monitor_hsync,maxclk:max_monitor_dotclock\"");
2523 module_param(grayscale, int, 0);
2524 MODULE_PARM_DESC(grayscale, "Sets display into grayscale. Works perfectly with paletized videomode (4, 8bpp), some limitations apply to 16, 24 and 32bpp videomodes (default=nograyscale)");
2525 module_param(cross4MB, int, 0);
2526 MODULE_PARM_DESC(cross4MB, "Specifies that 4MB boundary can be in middle of line. (default=autodetected)");
2527 module_param(dfp, int, 0);
2528 MODULE_PARM_DESC(dfp, "Specifies whether to use digital flat panel interface of G200/G400 (0 or 1) (default=0)");
2529 module_param(dfp_type, int, 0);
2530 MODULE_PARM_DESC(dfp_type, "Specifies DFP interface type (0 to 255) (default=read from hardware)");
2531 module_param_string(outputs, outputs, sizeof(outputs), 0);
2532 MODULE_PARM_DESC(outputs, "Specifies which CRTC is mapped to which output (string of up to three letters, consisting of 0 (disabled), 1 (CRTC1), 2 (CRTC2)) (default=111 for Gx50, 101 for G200/G400 with DFP, and 100 for all other devices)");
2533 #ifdef CONFIG_PPC_PMAC
2534 module_param_named(vmode, default_vmode, int, 0);
2535 MODULE_PARM_DESC(vmode, "Specify the vmode mode number that should be used (640x480 default)");
2536 module_param_named(cmode, default_cmode, int, 0);
2537 MODULE_PARM_DESC(cmode, "Specify the video depth that should be used (8bit default)");
2538 #endif
2539
2540 int __init init_module(void){
2541
2542         DBG(__func__)
2543
2544         if (disabled)
2545                 return -ENXIO;
2546
2547         if (depth == 0)
2548                 depth = RSText;
2549         else if (depth == 4)
2550                 depth = RS4bpp;
2551         else if (depth == 8)
2552                 depth = RS8bpp;
2553         else if (depth == 15)
2554                 depth = RS15bpp;
2555         else if (depth == 16)
2556                 depth = RS16bpp;
2557         else if (depth == 24)
2558                 depth = RS24bpp;
2559         else if (depth == 32)
2560                 depth = RS32bpp;
2561         else if (depth != -1) {
2562                 printk(KERN_ERR "matroxfb: depth %d is not supported, using default\n", depth);
2563                 depth = -1;
2564         }
2565         matrox_init();
2566         /* never return failure; user can hotplug matrox later... */
2567         return 0;
2568 }
2569 #endif  /* MODULE */
2570
2571 module_exit(matrox_done);
2572 EXPORT_SYMBOL(matroxfb_register_driver);
2573 EXPORT_SYMBOL(matroxfb_unregister_driver);
2574 EXPORT_SYMBOL(matroxfb_wait_for_sync);
2575 EXPORT_SYMBOL(matroxfb_enable_irq);
2576
2577 /*
2578  * Overrides for Emacs so that we follow Linus's tabbing style.
2579  * ---------------------------------------------------------------------------
2580  * Local variables:
2581  * c-basic-offset: 8
2582  * End:
2583  */
2584