drivers/video/fbdev/matrox/matroxfb_base.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *
   4  * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
   5  *
   6  * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
   7  *
   8  * Portions Copyright (c) 2001 Matrox Graphics Inc.
   9  *
  10  * Version: 1.65 2002/08/14
  11  *
  12  * MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
  13  *
  14  * Contributors: "menion?" <menion@mindless.com>
  15  *                     Betatesting, fixes, ideas
  16  *
  17  *               "Kurt Garloff" <garloff@suse.de>
  18  *                     Betatesting, fixes, ideas, videomodes, videomodes timmings
  19  *
  20  *               "Tom Rini" <trini@kernel.crashing.org>
  21  *                     MTRR stuff, PPC cleanups, betatesting, fixes, ideas
  22  *
  23  *               "Bibek Sahu" <scorpio@dodds.net>
  24  *                     Access device through readb|w|l and write b|w|l
  25  *                     Extensive debugging stuff
  26  *
  27  *               "Daniel Haun" <haund@usa.net>
  28  *                     Testing, hardware cursor fixes
  29  *
  30  *               "Scott Wood" <sawst46+@pitt.edu>
  31  *                     Fixes
  32  *
  33  *               "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
  34  *                     Betatesting
  35  *
  36  *               "Kelly French" <targon@hazmat.com>
  37  *               "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
  38  *                     Betatesting, bug reporting
  39  *
  40  *               "Pablo Bianucci" <pbian@pccp.com.ar>
  41  *                     Fixes, ideas, betatesting
  42  *
  43  *               "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
  44  *                     Fixes, enhandcements, ideas, betatesting
  45  *
  46  *               "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
  47  *                     PPC betatesting, PPC support, backward compatibility
  48  *
  49  *               "Paul Womar" <Paul@pwomar.demon.co.uk>
  50  *               "Owen Waller" <O.Waller@ee.qub.ac.uk>
  51  *                     PPC betatesting
  52  *
  53  *               "Thomas Pornin" <pornin@bolet.ens.fr>
  54  *                     Alpha betatesting
  55  *
  56  *               "Pieter van Leuven" <pvl@iae.nl>
  57  *               "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
  58  *                     G100 testing
  59  *
  60  *               "H. Peter Arvin" <hpa@transmeta.com>
  61  *                     Ideas
  62  *
  63  *               "Cort Dougan" <cort@cs.nmt.edu>
  64  *                     CHRP fixes and PReP cleanup
  65  *
  66  *               "Mark Vojkovich" <mvojkovi@ucsd.edu>
  67  *                     G400 support
  68  *
  69  *               "Samuel Hocevar" <sam@via.ecp.fr>
  70  *                     Fixes
  71  *
  72  *               "Anton Altaparmakov" <AntonA@bigfoot.com>
  73  *                     G400 MAX/non-MAX distinction
  74  *
  75  *               "Ken Aaker" <kdaaker@rchland.vnet.ibm.com>
  76  *                     memtype extension (needed for GXT130P RS/6000 adapter)
  77  *
  78  *               "Uns Lider" <unslider@miranda.org>
  79  *                     G100 PLNWT fixes
  80  *
  81  *               "Denis Zaitsev" <zzz@cd-club.ru>
  82  *                     Fixes
  83  *
  84  *               "Mike Pieper" <mike@pieper-family.de>
  85  *                     TVOut enhandcements, V4L2 control interface.
  86  *
  87  *               "Diego Biurrun" <diego@biurrun.de>
  88  *                     DFP testing
  89  *
  90  * (following author is not in any relation with this code, but his code
  91  *  is included in this driver)
  92  *
  93  * Based on framebuffer driver for VBE 2.0 compliant graphic boards
  94  *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
  95  *
  96  * (following author is not in any relation with this code, but his ideas
  97  *  were used when writing this driver)
  98  *
  99  *               FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
 100  *
 101  */
 102
 103 #include <linux/version.h>
 104
 105 #include "matroxfb_base.h"
 106 #include "matroxfb_misc.h"
 107 #include "matroxfb_accel.h"
 108 #include "matroxfb_DAC1064.h"
 109 #include "matroxfb_Ti3026.h"
 110 #include "matroxfb_maven.h"
 111 #include "matroxfb_crtc2.h"
 112 #include "matroxfb_g450.h"
 113 #include <linux/matroxfb.h>
 114 #include <linux/interrupt.h>
 115 #include <linux/nvram.h>
 116 #include <linux/slab.h>
 117 #include <linux/uaccess.h>
 118
 119 #ifdef CONFIG_PPC_PMAC
 120 #include <asm/machdep.h>
 121 static int default_vmode = VMODE_NVRAM;
 122 static int default_cmode = CMODE_NVRAM;
 123 #endif
 124
 125 static void matroxfb_unregister_device(struct matrox_fb_info* minfo);
 126
 127 /* --------------------------------------------------------------------- */
 128
 129 /*
 130  * card parameters
 131  */
 132
 133 /* --------------------------------------------------------------------- */
 134
 135 static struct fb_var_screeninfo vesafb_defined = {
 136         640,480,640,480,/* W,H, W, H (virtual) load xres,xres_virtual*/
 137         0,0,            /* virtual -> visible no offset */
 138         8,              /* depth -> load bits_per_pixel */
 139         0,              /* greyscale ? */
 140         {0,0,0},        /* R */
 141         {0,0,0},        /* G */
 142         {0,0,0},        /* B */
 143         {0,0,0},        /* transparency */
 144         0,              /* standard pixel format */
 145         FB_ACTIVATE_NOW,
 146         -1,-1,
 147         FB_ACCELF_TEXT, /* accel flags */
 148         39721L,48L,16L,33L,10L,
 149         96L,2L,~0,      /* No sync info */
 150         FB_VMODE_NONINTERLACED,
 151 };
 152
 153
 154
 155 /* --------------------------------------------------------------------- */
 156 static void update_crtc2(struct matrox_fb_info *minfo, unsigned int pos)
 157 {
 158         struct matroxfb_dh_fb_info *info = minfo->crtc2.info;
 159
 160         /* Make sure that displays are compatible */
 161         if (info && (info->fbcon.var.bits_per_pixel == minfo->fbcon.var.bits_per_pixel)
 162                  && (info->fbcon.var.xres_virtual == minfo->fbcon.var.xres_virtual)
 163                  && (info->fbcon.var.green.length == minfo->fbcon.var.green.length)
 164                  ) {
 165                 switch (minfo->fbcon.var.bits_per_pixel) {
 166                         case 16:
 167                         case 32:
 168                                 pos = pos * 8;
 169                                 if (info->interlaced) {
 170                                         mga_outl(0x3C2C, pos);
 171                                         mga_outl(0x3C28, pos + minfo->fbcon.var.xres_virtual * minfo->fbcon.var.bits_per_pixel / 8);
 172                                 } else {
 173                                         mga_outl(0x3C28, pos);
 174                                 }
 175                                 break;
 176                 }
 177         }
 178 }
 179
 180 static void matroxfb_crtc1_panpos(struct matrox_fb_info *minfo)
 181 {
 182         if (minfo->crtc1.panpos >= 0) {
 183                 unsigned long flags;
 184                 int panpos;
 185
 186                 matroxfb_DAC_lock_irqsave(flags);
 187                 panpos = minfo->crtc1.panpos;
 188                 if (panpos >= 0) {
 189                         unsigned int extvga_reg;
 190
 191                         minfo->crtc1.panpos = -1; /* No update pending anymore */
 192                         extvga_reg = mga_inb(M_EXTVGA_INDEX);
 193                         mga_setr(M_EXTVGA_INDEX, 0x00, panpos);
 194                         if (extvga_reg != 0x00) {
 195                                 mga_outb(M_EXTVGA_INDEX, extvga_reg);
 196                         }
 197                 }
 198                 matroxfb_DAC_unlock_irqrestore(flags);
 199         }
 200 }
 201
 202 static irqreturn_t matrox_irq(int irq, void *dev_id)
 203 {
 204         u_int32_t status;
 205         int handled = 0;
 206         struct matrox_fb_info *minfo = dev_id;
 207
 208         status = mga_inl(M_STATUS);
 209
 210         if (status & 0x20) {
 211                 mga_outl(M_ICLEAR, 0x20);
 212                 minfo->crtc1.vsync.cnt++;
 213                 matroxfb_crtc1_panpos(minfo);
 214                 wake_up_interruptible(&minfo->crtc1.vsync.wait);
 215                 handled = 1;
 216         }
 217         if (status & 0x200) {
 218                 mga_outl(M_ICLEAR, 0x200);
 219                 minfo->crtc2.vsync.cnt++;
 220                 wake_up_interruptible(&minfo->crtc2.vsync.wait);
 221                 handled = 1;
 222         }
 223         return IRQ_RETVAL(handled);
 224 }
 225
 226 int matroxfb_enable_irq(struct matrox_fb_info *minfo, int reenable)
 227 {
 228         u_int32_t bm;
 229
 230         if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
 231                 bm = 0x220;
 232         else
 233                 bm = 0x020;
 234
 235         if (!test_and_set_bit(0, &minfo->irq_flags)) {
 236                 if (request_irq(minfo->pcidev->irq, matrox_irq,
 237                                 IRQF_SHARED, "matroxfb", minfo)) {
 238                         clear_bit(0, &minfo->irq_flags);
 239                         return -EINVAL;
 240                 }
 241                 /* Clear any pending field interrupts */
 242                 mga_outl(M_ICLEAR, bm);
 243                 mga_outl(M_IEN, mga_inl(M_IEN) | bm);
 244         } else if (reenable) {
 245                 u_int32_t ien;
 246
 247                 ien = mga_inl(M_IEN);
 248                 if ((ien & bm) != bm) {
 249                         printk(KERN_DEBUG "matroxfb: someone disabled IRQ [%08X]\n", ien);
 250                         mga_outl(M_IEN, ien | bm);
 251                 }
 252         }
 253         return 0;
 254 }
 255
 256 static void matroxfb_disable_irq(struct matrox_fb_info *minfo)
 257 {
 258         if (test_and_clear_bit(0, &minfo->irq_flags)) {
 259                 /* Flush pending pan-at-vbl request... */
 260                 matroxfb_crtc1_panpos(minfo);
 261                 if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
 262                         mga_outl(M_IEN, mga_inl(M_IEN) & ~0x220);
 263                 else
 264                         mga_outl(M_IEN, mga_inl(M_IEN) & ~0x20);
 265                 free_irq(minfo->pcidev->irq, minfo);
 266         }
 267 }
 268
 269 int matroxfb_wait_for_sync(struct matrox_fb_info *minfo, u_int32_t crtc)
 270 {
 271         struct matrox_vsync *vs;
 272         unsigned int cnt;
 273         int ret;
 274
 275         switch (crtc) {
 276                 case 0:
 277                         vs = &minfo->crtc1.vsync;
 278                         break;
 279                 case 1:
 280                         if (minfo->devflags.accelerator != FB_ACCEL_MATROX_MGAG400) {
 281                                 return -ENODEV;
 282                         }
 283                         vs = &minfo->crtc2.vsync;
 284                         break;
 285                 default:
 286                         return -ENODEV;
 287         }
 288         ret = matroxfb_enable_irq(minfo, 0);
 289         if (ret) {
 290                 return ret;
 291         }
 292
 293         cnt = vs->cnt;
 294         ret = wait_event_interruptible_timeout(vs->wait, cnt != vs->cnt, HZ/10);
 295         if (ret < 0) {
 296                 return ret;
 297         }
 298         if (ret == 0) {
 299                 matroxfb_enable_irq(minfo, 1);
 300                 return -ETIMEDOUT;
 301         }
 302         return 0;
 303 }
 304
 305 /* --------------------------------------------------------------------- */
 306
 307 static void matrox_pan_var(struct matrox_fb_info *minfo,
 308                            struct fb_var_screeninfo *var)
 309 {
 310         unsigned int pos;
 311         unsigned short p0, p1, p2;
 312         unsigned int p3;
 313         int vbl;
 314         unsigned long flags;
 315
 316         CRITFLAGS
 317
 318         DBG(__func__)
 319
 320         if (minfo->dead)
 321                 return;
 322
 323         minfo->fbcon.var.xoffset = var->xoffset;
 324         minfo->fbcon.var.yoffset = var->yoffset;
 325         pos = (minfo->fbcon.var.yoffset * minfo->fbcon.var.xres_virtual + minfo->fbcon.var.xoffset) * minfo->curr.final_bppShift / 32;
 326         pos += minfo->curr.ydstorg.chunks;
 327         p0 = minfo->hw.CRTC[0x0D] = pos & 0xFF;
 328         p1 = minfo->hw.CRTC[0x0C] = (pos & 0xFF00) >> 8;
 329         p2 = minfo->hw.CRTCEXT[0] = (minfo->hw.CRTCEXT[0] & 0xB0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
 330         p3 = minfo->hw.CRTCEXT[8] = pos >> 21;
 331
 332         /* FB_ACTIVATE_VBL and we can acquire interrupts? Honor FB_ACTIVATE_VBL then... */
 333         vbl = (var->activate & FB_ACTIVATE_VBL) && (matroxfb_enable_irq(minfo, 0) == 0);
 334
 335         CRITBEGIN
 336
 337         matroxfb_DAC_lock_irqsave(flags);
 338         mga_setr(M_CRTC_INDEX, 0x0D, p0);
 339         mga_setr(M_CRTC_INDEX, 0x0C, p1);
 340         if (minfo->devflags.support32MB)
 341                 mga_setr(M_EXTVGA_INDEX, 0x08, p3);
 342         if (vbl) {
 343                 minfo->crtc1.panpos = p2;
 344         } else {
 345                 /* Abort any pending change */
 346                 minfo->crtc1.panpos = -1;
 347                 mga_setr(M_EXTVGA_INDEX, 0x00, p2);
 348         }
 349         matroxfb_DAC_unlock_irqrestore(flags);
 350
 351         update_crtc2(minfo, pos);
 352
 353         CRITEND
 354 }
 355
 356 static void matroxfb_remove(struct matrox_fb_info *minfo, int dummy)
 357 {
 358         /* Currently we are holding big kernel lock on all dead & usecount updates.
 359          * Destroy everything after all users release it. Especially do not unregister
 360          * framebuffer and iounmap memory, neither fbmem nor fbcon-cfb* does not check
 361          * for device unplugged when in use.
 362          * In future we should point mmio.vbase & video.vbase somewhere where we can
 363          * write data without causing too much damage...
 364          */
 365
 366         minfo->dead = 1;
 367         if (minfo->usecount) {
 368                 /* destroy it later */
 369                 return;
 370         }
 371         matroxfb_unregister_device(minfo);
 372         unregister_framebuffer(&minfo->fbcon);
 373         matroxfb_g450_shutdown(minfo);
 374         arch_phys_wc_del(minfo->wc_cookie);
 375         iounmap(minfo->mmio.vbase.vaddr);
 376         iounmap(minfo->video.vbase.vaddr);
 377         release_mem_region(minfo->video.base, minfo->video.len_maximum);
 378         release_mem_region(minfo->mmio.base, 16384);
 379         kfree(minfo);
 380 }
 381
 382         /*
 383          * Open/Release the frame buffer device
 384          */
 385
 386 static int matroxfb_open(struct fb_info *info, int user)
 387 {
 388         struct matrox_fb_info *minfo = info2minfo(info);
 389
 390         DBG_LOOP(__func__)
 391
 392         if (minfo->dead) {
 393                 return -ENXIO;
 394         }
 395         minfo->usecount++;
 396         if (user) {
 397                 minfo->userusecount++;
 398         }
 399         return(0);
 400 }
 401
 402 static int matroxfb_release(struct fb_info *info, int user)
 403 {
 404         struct matrox_fb_info *minfo = info2minfo(info);
 405
 406         DBG_LOOP(__func__)
 407
 408         if (user) {
 409                 if (0 == --minfo->userusecount) {
 410                         matroxfb_disable_irq(minfo);
 411                 }
 412         }
 413         if (!(--minfo->usecount) && minfo->dead) {
 414                 matroxfb_remove(minfo, 0);
 415         }
 416         return(0);
 417 }
 418
 419 static int matroxfb_pan_display(struct fb_var_screeninfo *var,
 420                 struct fb_info* info) {
 421         struct matrox_fb_info *minfo = info2minfo(info);
 422
 423         DBG(__func__)
 424
 425         matrox_pan_var(minfo, var);
 426         return 0;
 427 }
 428
 429 static int matroxfb_get_final_bppShift(const struct matrox_fb_info *minfo,
 430                                        int bpp)
 431 {
 432         int bppshft2;
 433
 434         DBG(__func__)
 435
 436         bppshft2 = bpp;
 437         if (!bppshft2) {
 438                 return 8;
 439         }
 440         if (isInterleave(minfo))
 441                 bppshft2 >>= 1;
 442         if (minfo->devflags.video64bits)
 443                 bppshft2 >>= 1;
 444         return bppshft2;
 445 }
 446
 447 static int matroxfb_test_and_set_rounding(const struct matrox_fb_info *minfo,
 448                                           int xres, int bpp)
 449 {
 450         int over;
 451         int rounding;
 452
 453         DBG(__func__)
 454
 455         switch (bpp) {
 456                 case 0:         return xres;
 457                 case 4:         rounding = 128;
 458                                 break;
 459                 case 8:         rounding = 64;  /* doc says 64; 32 is OK for G400 */
 460                                 break;
 461                 case 16:        rounding = 32;
 462                                 break;
 463                 case 24:        rounding = 64;  /* doc says 64; 32 is OK for G400 */
 464                                 break;
 465                 default:        rounding = 16;
 466                                 /* on G400, 16 really does not work */
 467                                 if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
 468                                         rounding = 32;
 469                                 break;
 470         }
 471         if (isInterleave(minfo)) {
 472                 rounding *= 2;
 473         }
 474         over = xres % rounding;
 475         if (over)
 476                 xres += rounding-over;
 477         return xres;
 478 }
 479
 480 static int matroxfb_pitch_adjust(const struct matrox_fb_info *minfo, int xres,
 481                                  int bpp)
 482 {
 483         const int* width;
 484         int xres_new;
 485
 486         DBG(__func__)
 487
 488         if (!bpp) return xres;
 489
 490         width = minfo->capable.vxres;
 491
 492         if (minfo->devflags.precise_width) {
 493                 while (*width) {
 494                         if ((*width >= xres) && (matroxfb_test_and_set_rounding(minfo, *width, bpp) == *width)) {
 495                                 break;
 496                         }
 497                         width++;
 498                 }
 499                 xres_new = *width;
 500         } else {
 501                 xres_new = matroxfb_test_and_set_rounding(minfo, xres, bpp);
 502         }
 503         return xres_new;
 504 }
 505
 506 static int matroxfb_get_cmap_len(struct fb_var_screeninfo *var) {
 507
 508         DBG(__func__)
 509
 510         switch (var->bits_per_pixel) {
 511                 case 4:
 512                         return 16;      /* pseudocolor... 16 entries HW palette */
 513                 case 8:
 514                         return 256;     /* pseudocolor... 256 entries HW palette */
 515                 case 16:
 516                         return 16;      /* directcolor... 16 entries SW palette */
 517                                         /* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
 518                 case 24:
 519                         return 16;      /* directcolor... 16 entries SW palette */
 520                                         /* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
 521                 case 32:
 522                         return 16;      /* directcolor... 16 entries SW palette */
 523                                         /* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
 524         }
 525         return 16;      /* return something reasonable... or panic()? */
 526 }
 527
 528 static int matroxfb_decode_var(const struct matrox_fb_info *minfo,
 529                                struct fb_var_screeninfo *var, int *visual,
 530                                int *video_cmap_len, unsigned int* ydstorg)
 531 {
 532         struct RGBT {
 533                 unsigned char bpp;
 534                 struct {
 535                         unsigned char offset,
 536                                       length;
 537                 } red,
 538                   green,
 539                   blue,
 540                   transp;
 541                 signed char visual;
 542         };
 543         static const struct RGBT table[]= {
 544                 { 8,{ 0,8},{0,8},{0,8},{ 0,0},MX_VISUAL_PSEUDOCOLOR},
 545                 {15,{10,5},{5,5},{0,5},{15,1},MX_VISUAL_DIRECTCOLOR},
 546                 {16,{11,5},{5,6},{0,5},{ 0,0},MX_VISUAL_DIRECTCOLOR},
 547                 {24,{16,8},{8,8},{0,8},{ 0,0},MX_VISUAL_DIRECTCOLOR},
 548                 {32,{16,8},{8,8},{0,8},{24,8},MX_VISUAL_DIRECTCOLOR}
 549         };
 550         struct RGBT const *rgbt;
 551         unsigned int bpp = var->bits_per_pixel;
 552         unsigned int vramlen;
 553         unsigned int memlen;
 554
 555         DBG(__func__)
 556
 557         switch (bpp) {
 558                 case 4:  if (!minfo->capable.cfb4) return -EINVAL;
 559                          break;
 560                 case 8:  break;
 561                 case 16: break;
 562                 case 24: break;
 563                 case 32: break;
 564                 default: return -EINVAL;
 565         }
 566         *ydstorg = 0;
 567         vramlen = minfo->video.len_usable;
 568         if (var->yres_virtual < var->yres)
 569                 var->yres_virtual = var->yres;
 570         if (var->xres_virtual < var->xres)
 571                 var->xres_virtual = var->xres;
 572
 573         var->xres_virtual = matroxfb_pitch_adjust(minfo, var->xres_virtual, bpp);
 574         memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
 575         if (memlen > vramlen) {
 576                 var->yres_virtual = vramlen * 8 / (var->xres_virtual * bpp);
 577                 memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
 578         }
 579         /* There is hardware bug that no line can cross 4MB boundary */
 580         /* give up for CFB24, it is impossible to easy workaround it */
 581         /* for other try to do something */
 582         if (!minfo->capable.cross4MB && (memlen > 0x400000)) {
 583                 if (bpp == 24) {
 584                         /* sorry */
 585                 } else {
 586                         unsigned int linelen;
 587                         unsigned int m1 = linelen = var->xres_virtual * bpp / 8;
 588                         unsigned int m2 = PAGE_SIZE;    /* or 128 if you do not need PAGE ALIGNED address */
 589                         unsigned int max_yres;
 590
 591                         while (m1) {
 592                                 while (m2 >= m1) m2 -= m1;
 593                                 swap(m1, m2);
 594                         }
 595                         m2 = linelen * PAGE_SIZE / m2;
 596                         *ydstorg = m2 = 0x400000 % m2;
 597                         max_yres = (vramlen - m2) / linelen;
 598                         if (var->yres_virtual > max_yres)
 599                                 var->yres_virtual = max_yres;
 600                 }
 601         }
 602         /* YDSTLEN contains only signed 16bit value */
 603         if (var->yres_virtual > 32767)
 604                 var->yres_virtual = 32767;
 605         /* we must round yres/xres down, we already rounded y/xres_virtual up
 606            if it was possible. We should return -EINVAL, but I disagree */
 607         if (var->yres_virtual < var->yres)
 608                 var->yres = var->yres_virtual;
 609         if (var->xres_virtual < var->xres)
 610                 var->xres = var->xres_virtual;
 611         if (var->xoffset + var->xres > var->xres_virtual)
 612                 var->xoffset = var->xres_virtual - var->xres;
 613         if (var->yoffset + var->yres > var->yres_virtual)
 614                 var->yoffset = var->yres_virtual - var->yres;
 615
 616         if (bpp == 16 && var->green.length == 5) {
 617                 bpp--; /* an artificial value - 15 */
 618         }
 619
 620         for (rgbt = table; rgbt->bpp < bpp; rgbt++);
 621 #define SETCLR(clr)\
 622         var->clr.offset = rgbt->clr.offset;\
 623         var->clr.length = rgbt->clr.length
 624         SETCLR(red);
 625         SETCLR(green);
 626         SETCLR(blue);
 627         SETCLR(transp);
 628 #undef  SETCLR
 629         *visual = rgbt->visual;
 630
 631         if (bpp > 8)
 632                 dprintk("matroxfb: truecolor: "
 633                         "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
 634                         var->transp.length, var->red.length, var->green.length, var->blue.length,
 635                         var->transp.offset, var->red.offset, var->green.offset, var->blue.offset);
 636
 637         *video_cmap_len = matroxfb_get_cmap_len(var);
 638         dprintk(KERN_INFO "requested %d*%d/%dbpp (%d*%d)\n", var->xres, var->yres, var->bits_per_pixel,
 639                                 var->xres_virtual, var->yres_virtual);
 640         return 0;
 641 }
 642
 643 static int matroxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
 644                               unsigned blue, unsigned transp,
 645                               struct fb_info *fb_info)
 646 {
 647         struct matrox_fb_info* minfo = container_of(fb_info, struct matrox_fb_info, fbcon);
 648
 649         DBG(__func__)
 650
 651         /*
 652          *  Set a single color register. The values supplied are
 653          *  already rounded down to the hardware's capabilities
 654          *  (according to the entries in the `var' structure). Return
 655          *  != 0 for invalid regno.
 656          */
 657
 658         if (regno >= minfo->curr.cmap_len)
 659                 return 1;
 660
 661         if (minfo->fbcon.var.grayscale) {
 662                 /* gray = 0.30*R + 0.59*G + 0.11*B */
 663                 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
 664         }
 665
 666         red = CNVT_TOHW(red, minfo->fbcon.var.red.length);
 667         green = CNVT_TOHW(green, minfo->fbcon.var.green.length);
 668         blue = CNVT_TOHW(blue, minfo->fbcon.var.blue.length);
 669         transp = CNVT_TOHW(transp, minfo->fbcon.var.transp.length);
 670
 671         switch (minfo->fbcon.var.bits_per_pixel) {
 672         case 4:
 673         case 8:
 674                 mga_outb(M_DAC_REG, regno);
 675                 mga_outb(M_DAC_VAL, red);
 676                 mga_outb(M_DAC_VAL, green);
 677                 mga_outb(M_DAC_VAL, blue);
 678                 break;
 679         case 16:
 680                 if (regno >= 16)
 681                         break;
 682                 {
 683                         u_int16_t col =
 684                                 (red << minfo->fbcon.var.red.offset)     |
 685                                 (green << minfo->fbcon.var.green.offset) |
 686                                 (blue << minfo->fbcon.var.blue.offset)   |
 687                                 (transp << minfo->fbcon.var.transp.offset); /* for 1:5:5:5 */
 688                         minfo->cmap[regno] = col | (col << 16);
 689                 }
 690                 break;
 691         case 24:
 692         case 32:
 693                 if (regno >= 16)
 694                         break;
 695                 minfo->cmap[regno] =
 696                         (red   << minfo->fbcon.var.red.offset)   |
 697                         (green << minfo->fbcon.var.green.offset) |
 698                         (blue  << minfo->fbcon.var.blue.offset)  |
 699                         (transp << minfo->fbcon.var.transp.offset);     /* 8:8:8:8 */
 700                 break;
 701         }
 702         return 0;
 703 }
 704
 705 static void matroxfb_init_fix(struct matrox_fb_info *minfo)
 706 {
 707         struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
 708         DBG(__func__)
 709
 710         strcpy(fix->id,"MATROX");
 711
 712         fix->xpanstep = 8;      /* 8 for 8bpp, 4 for 16bpp, 2 for 32bpp */
 713         fix->ypanstep = 1;
 714         fix->ywrapstep = 0;
 715         fix->mmio_start = minfo->mmio.base;
 716         fix->mmio_len = minfo->mmio.len;
 717         fix->accel = minfo->devflags.accelerator;
 718 }
 719
 720 static void matroxfb_update_fix(struct matrox_fb_info *minfo)
 721 {
 722         struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
 723         DBG(__func__)
 724
 725         mutex_lock(&minfo->fbcon.mm_lock);
 726         fix->smem_start = minfo->video.base + minfo->curr.ydstorg.bytes;
 727         fix->smem_len = minfo->video.len_usable - minfo->curr.ydstorg.bytes;
 728         mutex_unlock(&minfo->fbcon.mm_lock);
 729 }
 730
 731 static int matroxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 732 {
 733         int err;
 734         int visual;
 735         int cmap_len;
 736         unsigned int ydstorg;
 737         struct matrox_fb_info *minfo = info2minfo(info);
 738
 739         if (minfo->dead) {
 740                 return -ENXIO;
 741         }
 742         if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
 743                 return err;
 744         return 0;
 745 }
 746
 747 static int matroxfb_set_par(struct fb_info *info)
 748 {
 749         int err;
 750         int visual;
 751         int cmap_len;
 752         unsigned int ydstorg;
 753         struct fb_var_screeninfo *var;
 754         struct matrox_fb_info *minfo = info2minfo(info);
 755
 756         DBG(__func__)
 757
 758         if (minfo->dead) {
 759                 return -ENXIO;
 760         }
 761
 762         var = &info->var;
 763         if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
 764                 return err;
 765         minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase) + ydstorg;
 766         matroxfb_update_fix(minfo);
 767         minfo->fbcon.fix.visual = visual;
 768         minfo->fbcon.fix.type = FB_TYPE_PACKED_PIXELS;
 769         minfo->fbcon.fix.type_aux = 0;
 770         minfo->fbcon.fix.line_length = (var->xres_virtual * var->bits_per_pixel) >> 3;
 771         {
 772                 unsigned int pos;
 773
 774                 minfo->curr.cmap_len = cmap_len;
 775                 ydstorg += minfo->devflags.ydstorg;
 776                 minfo->curr.ydstorg.bytes = ydstorg;
 777                 minfo->curr.ydstorg.chunks = ydstorg >> (isInterleave(minfo) ? 3 : 2);
 778                 if (var->bits_per_pixel == 4)
 779                         minfo->curr.ydstorg.pixels = ydstorg;
 780                 else
 781                         minfo->curr.ydstorg.pixels = (ydstorg * 8) / var->bits_per_pixel;
 782                 minfo->curr.final_bppShift = matroxfb_get_final_bppShift(minfo, var->bits_per_pixel);
 783                 {       struct my_timming mt;
 784                         struct matrox_hw_state* hw;
 785                         int out;
 786
 787                         matroxfb_var2my(var, &mt);
 788                         mt.crtc = MATROXFB_SRC_CRTC1;
 789                         /* CRTC1 delays */
 790                         switch (var->bits_per_pixel) {
 791                                 case  0:        mt.delay = 31 + 0; break;
 792                                 case 16:        mt.delay = 21 + 8; break;
 793                                 case 24:        mt.delay = 17 + 8; break;
 794                                 case 32:        mt.delay = 16 + 8; break;
 795                                 default:        mt.delay = 31 + 8; break;
 796                         }
 797
 798                         hw = &minfo->hw;
 799
 800                         down_read(&minfo->altout.lock);
 801                         for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
 802                                 if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
 803                                     minfo->outputs[out].output->compute) {
 804                                         minfo->outputs[out].output->compute(minfo->outputs[out].data, &mt);
 805                                 }
 806                         }
 807                         up_read(&minfo->altout.lock);
 808                         minfo->crtc1.pixclock = mt.pixclock;
 809                         minfo->crtc1.mnp = mt.mnp;
 810                         minfo->hw_switch->init(minfo, &mt);
 811                         pos = (var->yoffset * var->xres_virtual + var->xoffset) * minfo->curr.final_bppShift / 32;
 812                         pos += minfo->curr.ydstorg.chunks;
 813
 814                         hw->CRTC[0x0D] = pos & 0xFF;
 815                         hw->CRTC[0x0C] = (pos & 0xFF00) >> 8;
 816                         hw->CRTCEXT[0] = (hw->CRTCEXT[0] & 0xF0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
 817                         hw->CRTCEXT[8] = pos >> 21;
 818                         minfo->hw_switch->restore(minfo);
 819                         update_crtc2(minfo, pos);
 820                         down_read(&minfo->altout.lock);
 821                         for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
 822                                 if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
 823                                     minfo->outputs[out].output->program) {
 824                                         minfo->outputs[out].output->program(minfo->outputs[out].data);
 825                                 }
 826                         }
 827                         for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
 828                                 if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
 829                                     minfo->outputs[out].output->start) {
 830                                         minfo->outputs[out].output->start(minfo->outputs[out].data);
 831                                 }
 832                         }
 833                         up_read(&minfo->altout.lock);
 834                         matrox_cfbX_init(minfo);
 835                 }
 836         }
 837         minfo->initialized = 1;
 838         return 0;
 839 }
 840
 841 static int matroxfb_get_vblank(struct matrox_fb_info *minfo,
 842                                struct fb_vblank *vblank)
 843 {
 844         unsigned int sts1;
 845
 846         matroxfb_enable_irq(minfo, 0);
 847         memset(vblank, 0, sizeof(*vblank));
 848         vblank->flags = FB_VBLANK_HAVE_VCOUNT | FB_VBLANK_HAVE_VSYNC |
 849                         FB_VBLANK_HAVE_VBLANK | FB_VBLANK_HAVE_HBLANK;
 850         sts1 = mga_inb(M_INSTS1);
 851         vblank->vcount = mga_inl(M_VCOUNT);
 852         /* BTW, on my PIII/450 with G400, reading M_INSTS1
 853            byte makes this call about 12% slower (1.70 vs. 2.05 us
 854            per ioctl()) */
 855         if (sts1 & 1)
 856                 vblank->flags |= FB_VBLANK_HBLANKING;
 857         if (sts1 & 8)
 858                 vblank->flags |= FB_VBLANK_VSYNCING;
 859         if (vblank->vcount >= minfo->fbcon.var.yres)
 860                 vblank->flags |= FB_VBLANK_VBLANKING;
 861         if (test_bit(0, &minfo->irq_flags)) {
 862                 vblank->flags |= FB_VBLANK_HAVE_COUNT;
 863                 /* Only one writer, aligned int value...
 864                    it should work without lock and without atomic_t */
 865                 vblank->count = minfo->crtc1.vsync.cnt;
 866         }
 867         return 0;
 868 }
 869
 870 static struct matrox_altout panellink_output = {
 871         .name    = "Panellink output",
 872 };
 873
 874 static int matroxfb_ioctl(struct fb_info *info,
 875                           unsigned int cmd, unsigned long arg)
 876 {
 877         void __user *argp = (void __user *)arg;
 878         struct matrox_fb_info *minfo = info2minfo(info);
 879
 880         DBG(__func__)
 881
 882         if (minfo->dead) {
 883                 return -ENXIO;
 884         }
 885
 886         switch (cmd) {
 887                 case FBIOGET_VBLANK:
 888                         {
 889                                 struct fb_vblank vblank;
 890                                 int err;
 891
 892                                 err = matroxfb_get_vblank(minfo, &vblank);
 893                                 if (err)
 894                                         return err;
 895                                 if (copy_to_user(argp, &vblank, sizeof(vblank)))
 896                                         return -EFAULT;
 897                                 return 0;
 898                         }
 899                 case FBIO_WAITFORVSYNC:
 900                         {
 901                                 u_int32_t crt;
 902
 903                                 if (get_user(crt, (u_int32_t __user *)arg))
 904                                         return -EFAULT;
 905
 906                                 return matroxfb_wait_for_sync(minfo, crt);
 907                         }
 908                 case MATROXFB_SET_OUTPUT_MODE:
 909                         {
 910                                 struct matroxioc_output_mode mom;
 911                                 struct matrox_altout *oproc;
 912                                 int val;
 913
 914                                 if (copy_from_user(&mom, argp, sizeof(mom)))
 915                                         return -EFAULT;
 916                                 if (mom.output >= MATROXFB_MAX_OUTPUTS)
 917                                         return -ENXIO;
 918                                 down_read(&minfo->altout.lock);
 919                                 oproc = minfo->outputs[mom.output].output;
 920                                 if (!oproc) {
 921                                         val = -ENXIO;
 922                                 } else if (!oproc->verifymode) {
 923                                         if (mom.mode == MATROXFB_OUTPUT_MODE_MONITOR) {
 924                                                 val = 0;
 925                                         } else {
 926                                                 val = -EINVAL;
 927                                         }
 928                                 } else {
 929                                         val = oproc->verifymode(minfo->outputs[mom.output].data, mom.mode);
 930                                 }
 931                                 if (!val) {
 932                                         if (minfo->outputs[mom.output].mode != mom.mode) {
 933                                                 minfo->outputs[mom.output].mode = mom.mode;
 934                                                 val = 1;
 935                                         }
 936                                 }
 937                                 up_read(&minfo->altout.lock);
 938                                 if (val != 1)
 939                                         return val;
 940                                 switch (minfo->outputs[mom.output].src) {
 941                                         case MATROXFB_SRC_CRTC1:
 942                                                 matroxfb_set_par(info);
 943                                                 break;
 944                                         case MATROXFB_SRC_CRTC2:
 945                                                 {
 946                                                         struct matroxfb_dh_fb_info* crtc2;
 947
 948                                                         down_read(&minfo->crtc2.lock);
 949                                                         crtc2 = minfo->crtc2.info;
 950                                                         if (crtc2)
 951                                                                 crtc2->fbcon.fbops->fb_set_par(&crtc2->fbcon);
 952                                                         up_read(&minfo->crtc2.lock);
 953                                                 }
 954                                                 break;
 955                                 }
 956                                 return 0;
 957                         }
 958                 case MATROXFB_GET_OUTPUT_MODE:
 959                         {
 960                                 struct matroxioc_output_mode mom;
 961                                 struct matrox_altout *oproc;
 962                                 int val;
 963
 964                                 if (copy_from_user(&mom, argp, sizeof(mom)))
 965                                         return -EFAULT;
 966                                 if (mom.output >= MATROXFB_MAX_OUTPUTS)
 967                                         return -ENXIO;
 968                                 down_read(&minfo->altout.lock);
 969                                 oproc = minfo->outputs[mom.output].output;
 970                                 if (!oproc) {
 971                                         val = -ENXIO;
 972                                 } else {
 973                                         mom.mode = minfo->outputs[mom.output].mode;
 974                                         val = 0;
 975                                 }
 976                                 up_read(&minfo->altout.lock);
 977                                 if (val)
 978                                         return val;
 979                                 if (copy_to_user(argp, &mom, sizeof(mom)))
 980                                         return -EFAULT;
 981                                 return 0;
 982                         }
 983                 case MATROXFB_SET_OUTPUT_CONNECTION:
 984                         {
 985                                 u_int32_t tmp;
 986                                 int i;
 987                                 int changes;
 988
 989                                 if (copy_from_user(&tmp, argp, sizeof(tmp)))
 990                                         return -EFAULT;
 991                                 for (i = 0; i < 32; i++) {
 992                                         if (tmp & (1 << i)) {
 993                                                 if (i >= MATROXFB_MAX_OUTPUTS)
 994                                                         return -ENXIO;
 995                                                 if (!minfo->outputs[i].output)
 996                                                         return -ENXIO;
 997                                                 switch (minfo->outputs[i].src) {
 998                                                         case MATROXFB_SRC_NONE:
 999                                                         case MATROXFB_SRC_CRTC1:
1000                                                                 break;
1001                                                         default:
1002                                                                 return -EBUSY;
1003                                                 }
1004                                         }
1005                                 }
1006                                 if (minfo->devflags.panellink) {
1007                                         if (tmp & MATROXFB_OUTPUT_CONN_DFP) {
1008                                                 if (tmp & MATROXFB_OUTPUT_CONN_SECONDARY)
1009                                                         return -EINVAL;
1010                                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1011                                                         if (minfo->outputs[i].src == MATROXFB_SRC_CRTC2) {
1012                                                                 return -EBUSY;
1013                                                         }
1014                                                 }
1015                                         }
1016                                 }
1017                                 changes = 0;
1018                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1019                                         if (tmp & (1 << i)) {
1020                                                 if (minfo->outputs[i].src != MATROXFB_SRC_CRTC1) {
1021                                                         changes = 1;
1022                                                         minfo->outputs[i].src = MATROXFB_SRC_CRTC1;
1023                                                 }
1024                                         } else if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1025                                                 changes = 1;
1026                                                 minfo->outputs[i].src = MATROXFB_SRC_NONE;
1027                                         }
1028                                 }
1029                                 if (!changes)
1030                                         return 0;
1031                                 matroxfb_set_par(info);
1032                                 return 0;
1033                         }
1034                 case MATROXFB_GET_OUTPUT_CONNECTION:
1035                         {
1036                                 u_int32_t conn = 0;
1037                                 int i;
1038
1039                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1040                                         if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1041                                                 conn |= 1 << i;
1042                                         }
1043                                 }
1044                                 if (put_user(conn, (u_int32_t __user *)arg))
1045                                         return -EFAULT;
1046                                 return 0;
1047                         }
1048                 case MATROXFB_GET_AVAILABLE_OUTPUTS:
1049                         {
1050                                 u_int32_t conn = 0;
1051                                 int i;
1052
1053                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1054                                         if (minfo->outputs[i].output) {
1055                                                 switch (minfo->outputs[i].src) {
1056                                                         case MATROXFB_SRC_NONE:
1057                                                         case MATROXFB_SRC_CRTC1:
1058                                                                 conn |= 1 << i;
1059                                                                 break;
1060                                                 }
1061                                         }
1062                                 }
1063                                 if (minfo->devflags.panellink) {
1064                                         if (conn & MATROXFB_OUTPUT_CONN_DFP)
1065                                                 conn &= ~MATROXFB_OUTPUT_CONN_SECONDARY;
1066                                         if (conn & MATROXFB_OUTPUT_CONN_SECONDARY)
1067                                                 conn &= ~MATROXFB_OUTPUT_CONN_DFP;
1068                                 }
1069                                 if (put_user(conn, (u_int32_t __user *)arg))
1070                                         return -EFAULT;
1071                                 return 0;
1072                         }
1073                 case MATROXFB_GET_ALL_OUTPUTS:
1074                         {
1075                                 u_int32_t conn = 0;
1076                                 int i;
1077
1078                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1079                                         if (minfo->outputs[i].output) {
1080                                                 conn |= 1 << i;
1081                                         }
1082                                 }
1083                                 if (put_user(conn, (u_int32_t __user *)arg))
1084                                         return -EFAULT;
1085                                 return 0;
1086                         }
1087                 case VIDIOC_QUERYCAP:
1088                         {
1089                                 struct v4l2_capability r;
1090
1091                                 memset(&r, 0, sizeof(r));
1092                                 strcpy(r.driver, "matroxfb");
1093                                 strcpy(r.card, "Matrox");
1094                                 sprintf(r.bus_info, "PCI:%s", pci_name(minfo->pcidev));
1095                                 r.version = KERNEL_VERSION(1,0,0);
1096                                 r.capabilities = V4L2_CAP_VIDEO_OUTPUT;
1097                                 if (copy_to_user(argp, &r, sizeof(r)))
1098                                         return -EFAULT;
1099                                 return 0;
1100
1101                         }
1102                 case VIDIOC_QUERYCTRL:
1103                         {
1104                                 struct v4l2_queryctrl qctrl;
1105                                 int err;
1106
1107                                 if (copy_from_user(&qctrl, argp, sizeof(qctrl)))
1108                                         return -EFAULT;
1109
1110                                 down_read(&minfo->altout.lock);
1111                                 if (!minfo->outputs[1].output) {
1112                                         err = -ENXIO;
1113                                 } else if (minfo->outputs[1].output->getqueryctrl) {
1114                                         err = minfo->outputs[1].output->getqueryctrl(minfo->outputs[1].data, &qctrl);
1115                                 } else {
1116                                         err = -EINVAL;
1117                                 }
1118                                 up_read(&minfo->altout.lock);
1119                                 if (err >= 0 &&
1120                                     copy_to_user(argp, &qctrl, sizeof(qctrl)))
1121                                         return -EFAULT;
1122                                 return err;
1123                         }
1124                 case VIDIOC_G_CTRL:
1125                         {
1126                                 struct v4l2_control ctrl;
1127                                 int err;
1128
1129                                 if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1130                                         return -EFAULT;
1131
1132                                 down_read(&minfo->altout.lock);
1133                                 if (!minfo->outputs[1].output) {
1134                                         err = -ENXIO;
1135                                 } else if (minfo->outputs[1].output->getctrl) {
1136                                         err = minfo->outputs[1].output->getctrl(minfo->outputs[1].data, &ctrl);
1137                                 } else {
1138                                         err = -EINVAL;
1139                                 }
1140                                 up_read(&minfo->altout.lock);
1141                                 if (err >= 0 &&
1142                                     copy_to_user(argp, &ctrl, sizeof(ctrl)))
1143                                         return -EFAULT;
1144                                 return err;
1145                         }
1146                 case VIDIOC_S_CTRL:
1147                         {
1148                                 struct v4l2_control ctrl;
1149                                 int err;
1150
1151                                 if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1152                                         return -EFAULT;
1153
1154                                 down_read(&minfo->altout.lock);
1155                                 if (!minfo->outputs[1].output) {
1156                                         err = -ENXIO;
1157                                 } else if (minfo->outputs[1].output->setctrl) {
1158                                         err = minfo->outputs[1].output->setctrl(minfo->outputs[1].data, &ctrl);
1159                                 } else {
1160                                         err = -EINVAL;
1161                                 }
1162                                 up_read(&minfo->altout.lock);
1163                                 return err;
1164                         }
1165         }
1166         return -ENOTTY;
1167 }
1168
1169 /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
1170
1171 static int matroxfb_blank(int blank, struct fb_info *info)
1172 {
1173         int seq;
1174         int crtc;
1175         CRITFLAGS
1176         struct matrox_fb_info *minfo = info2minfo(info);
1177
1178         DBG(__func__)
1179
1180         if (minfo->dead)
1181                 return 1;
1182
1183         switch (blank) {
1184         case FB_BLANK_NORMAL:  seq = 0x20; crtc = 0x00; break; /* works ??? */
1185         case FB_BLANK_VSYNC_SUSPEND:  seq = 0x20; crtc = 0x10; break;
1186         case FB_BLANK_HSYNC_SUSPEND:  seq = 0x20; crtc = 0x20; break;
1187         case FB_BLANK_POWERDOWN:  seq = 0x20; crtc = 0x30; break;
1188         default: seq = 0x00; crtc = 0x00; break;
1189         }
1190
1191         CRITBEGIN
1192
1193         mga_outb(M_SEQ_INDEX, 1);
1194         mga_outb(M_SEQ_DATA, (mga_inb(M_SEQ_DATA) & ~0x20) | seq);
1195         mga_outb(M_EXTVGA_INDEX, 1);
1196         mga_outb(M_EXTVGA_DATA, (mga_inb(M_EXTVGA_DATA) & ~0x30) | crtc);
1197
1198         CRITEND
1199         return 0;
1200 }
1201
1202 static const struct fb_ops matroxfb_ops = {
1203         .owner =        THIS_MODULE,
1204         .fb_open =      matroxfb_open,
1205         .fb_release =   matroxfb_release,
1206         .fb_check_var = matroxfb_check_var,
1207         .fb_set_par =   matroxfb_set_par,
1208         .fb_setcolreg = matroxfb_setcolreg,
1209         .fb_pan_display =matroxfb_pan_display,
1210         .fb_blank =     matroxfb_blank,
1211         .fb_ioctl =     matroxfb_ioctl,
1212 /*      .fb_fillrect =  <set by matrox_cfbX_init>, */
1213 /*      .fb_copyarea =  <set by matrox_cfbX_init>, */
1214 /*      .fb_imageblit = <set by matrox_cfbX_init>, */
1215 /*      .fb_cursor =    <set by matrox_cfbX_init>, */
1216 };
1217
1218 #define RSDepth(X)      (((X) >> 8) & 0x0F)
1219 #define RS8bpp          0x1
1220 #define RS15bpp         0x2
1221 #define RS16bpp         0x3
1222 #define RS32bpp         0x4
1223 #define RS4bpp          0x5
1224 #define RS24bpp         0x6
1225 #define RSText          0x7
1226 #define RSText8         0x8
1227 /* 9-F */
1228 static struct { struct fb_bitfield red, green, blue, transp; int bits_per_pixel; } colors[] = {
1229         { {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  8 },
1230         { { 10, 5, 0}, { 5, 5, 0}, { 0, 5, 0}, { 15, 1, 0}, 16 },
1231         { { 11, 5, 0}, { 5, 6, 0}, { 0, 5, 0}, {  0, 0, 0}, 16 },
1232         { { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, { 24, 8, 0}, 32 },
1233         { {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  4 },
1234         { { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, {  0, 0, 0}, 24 },
1235         { {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },       /* textmode with (default) VGA8x16 */
1236         { {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },       /* textmode hardwired to VGA8x8 */
1237 };
1238
1239 /* initialized by setup, see explanation at end of file (search for MODULE_PARM_DESC) */
1240 static unsigned int mem;                /* "matroxfb:mem:xxxxxM" */
1241 static int option_precise_width = 1;    /* cannot be changed, option_precise_width==0 must imply noaccel */
1242 static int inv24;                       /* "matroxfb:inv24" */
1243 static int cross4MB = -1;               /* "matroxfb:cross4MB" */
1244 static int disabled;                    /* "matroxfb:disabled" */
1245 static int noaccel;                     /* "matroxfb:noaccel" */
1246 static int nopan;                       /* "matroxfb:nopan" */
1247 static int no_pci_retry;                /* "matroxfb:nopciretry" */
1248 static int novga;                       /* "matroxfb:novga" */
1249 static int nobios;                      /* "matroxfb:nobios" */
1250 static int noinit = 1;                  /* "matroxfb:init" */
1251 static int inverse;                     /* "matroxfb:inverse" */
1252 static int sgram;                       /* "matroxfb:sgram" */
1253 static int mtrr = 1;                    /* "matroxfb:nomtrr" */
1254 static int grayscale;                   /* "matroxfb:grayscale" */
1255 static int dev = -1;                    /* "matroxfb:dev:xxxxx" */
1256 static unsigned int vesa = ~0;          /* "matroxfb:vesa:xxxxx" */
1257 static int depth = -1;                  /* "matroxfb:depth:xxxxx" */
1258 static unsigned int xres;               /* "matroxfb:xres:xxxxx" */
1259 static unsigned int yres;               /* "matroxfb:yres:xxxxx" */
1260 static unsigned int upper = ~0;         /* "matroxfb:upper:xxxxx" */
1261 static unsigned int lower = ~0;         /* "matroxfb:lower:xxxxx" */
1262 static unsigned int vslen;              /* "matroxfb:vslen:xxxxx" */
1263 static unsigned int left = ~0;          /* "matroxfb:left:xxxxx" */
1264 static unsigned int right = ~0;         /* "matroxfb:right:xxxxx" */
1265 static unsigned int hslen;              /* "matroxfb:hslen:xxxxx" */
1266 static unsigned int pixclock;           /* "matroxfb:pixclock:xxxxx" */
1267 static int sync = -1;                   /* "matroxfb:sync:xxxxx" */
1268 static unsigned int fv;                 /* "matroxfb:fv:xxxxx" */
1269 static unsigned int fh;                 /* "matroxfb:fh:xxxxxk" */
1270 static unsigned int maxclk;             /* "matroxfb:maxclk:xxxxM" */
1271 static int dfp;                         /* "matroxfb:dfp */
1272 static int dfp_type = -1;               /* "matroxfb:dfp:xxx */
1273 static int memtype = -1;                /* "matroxfb:memtype:xxx" */
1274 static char outputs[8];                 /* "matroxfb:outputs:xxx" */
1275
1276 #ifndef MODULE
1277 static char videomode[64];              /* "matroxfb:mode:xxxxx" or "matroxfb:xxxxx" */
1278 #endif
1279
1280 static int matroxfb_getmemory(struct matrox_fb_info *minfo,
1281                               unsigned int maxSize, unsigned int *realSize)
1282 {
1283         vaddr_t vm;
1284         unsigned int offs;
1285         unsigned int offs2;
1286         unsigned char orig;
1287         unsigned char bytes[32];
1288         unsigned char* tmp;
1289
1290         DBG(__func__)
1291
1292         vm = minfo->video.vbase;
1293         maxSize &= ~0x1FFFFF;   /* must be X*2MB (really it must be 2 or X*4MB) */
1294         /* at least 2MB */
1295         if (maxSize < 0x0200000) return 0;
1296         if (maxSize > 0x2000000) maxSize = 0x2000000;
1297
1298         mga_outb(M_EXTVGA_INDEX, 0x03);
1299         orig = mga_inb(M_EXTVGA_DATA);
1300         mga_outb(M_EXTVGA_DATA, orig | 0x80);
1301
1302         tmp = bytes;
1303         for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1304                 *tmp++ = mga_readb(vm, offs);
1305         for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1306                 mga_writeb(vm, offs, 0x02);
1307         mga_outb(M_CACHEFLUSH, 0x00);
1308         for (offs = 0x100000; offs < maxSize; offs += 0x200000) {
1309                 if (mga_readb(vm, offs) != 0x02)
1310                         break;
1311                 mga_writeb(vm, offs, mga_readb(vm, offs) - 0x02);
1312                 if (mga_readb(vm, offs))
1313                         break;
1314         }
1315         tmp = bytes;
1316         for (offs2 = 0x100000; offs2 < maxSize; offs2 += 0x200000)
1317                 mga_writeb(vm, offs2, *tmp++);
1318
1319         mga_outb(M_EXTVGA_INDEX, 0x03);
1320         mga_outb(M_EXTVGA_DATA, orig);
1321
1322         *realSize = offs - 0x100000;
1323 #ifdef CONFIG_FB_MATROX_MILLENIUM
1324         minfo->interleave = !(!isMillenium(minfo) || ((offs - 0x100000) & 0x3FFFFF));
1325 #endif
1326         return 1;
1327 }
1328
1329 struct video_board {
1330         int maxvram;
1331         int maxdisplayable;
1332         int accelID;
1333         struct matrox_switch* lowlevel;
1334                  };
1335 #ifdef CONFIG_FB_MATROX_MILLENIUM
1336 static struct video_board vbMillennium = {
1337         .maxvram = 0x0800000,
1338         .maxdisplayable = 0x0800000,
1339         .accelID = FB_ACCEL_MATROX_MGA2064W,
1340         .lowlevel = &matrox_millennium
1341 };
1342
1343 static struct video_board vbMillennium2 = {
1344         .maxvram = 0x1000000,
1345         .maxdisplayable = 0x0800000,
1346         .accelID = FB_ACCEL_MATROX_MGA2164W,
1347         .lowlevel = &matrox_millennium
1348 };
1349
1350 static struct video_board vbMillennium2A = {
1351         .maxvram = 0x1000000,
1352         .maxdisplayable = 0x0800000,
1353         .accelID = FB_ACCEL_MATROX_MGA2164W_AGP,
1354         .lowlevel = &matrox_millennium
1355 };
1356 #endif  /* CONFIG_FB_MATROX_MILLENIUM */
1357 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1358 static struct video_board vbMystique = {
1359         .maxvram = 0x0800000,
1360         .maxdisplayable = 0x0800000,
1361         .accelID = FB_ACCEL_MATROX_MGA1064SG,
1362         .lowlevel = &matrox_mystique
1363 };
1364 #endif  /* CONFIG_FB_MATROX_MYSTIQUE */
1365 #ifdef CONFIG_FB_MATROX_G
1366 static struct video_board vbG100 = {
1367         .maxvram = 0x0800000,
1368         .maxdisplayable = 0x0800000,
1369         .accelID = FB_ACCEL_MATROX_MGAG100,
1370         .lowlevel = &matrox_G100
1371 };
1372
1373 static struct video_board vbG200 = {
1374         .maxvram = 0x1000000,
1375         .maxdisplayable = 0x1000000,
1376         .accelID = FB_ACCEL_MATROX_MGAG200,
1377         .lowlevel = &matrox_G100
1378 };
1379 static struct video_board vbG200eW = {
1380         .maxvram = 0x100000,
1381         .maxdisplayable = 0x800000,
1382         .accelID = FB_ACCEL_MATROX_MGAG200,
1383         .lowlevel = &matrox_G100
1384 };
1385 /* from doc it looks like that accelerator can draw only to low 16MB :-( Direct accesses & displaying are OK for
1386    whole 32MB */
1387 static struct video_board vbG400 = {
1388         .maxvram = 0x2000000,
1389         .maxdisplayable = 0x1000000,
1390         .accelID = FB_ACCEL_MATROX_MGAG400,
1391         .lowlevel = &matrox_G100
1392 };
1393 #endif
1394
1395 #define DEVF_VIDEO64BIT         0x0001
1396 #define DEVF_SWAPS              0x0002
1397 #define DEVF_SRCORG             0x0004
1398 #define DEVF_DUALHEAD           0x0008
1399 #define DEVF_CROSS4MB           0x0010
1400 #define DEVF_TEXT4B             0x0020
1401 /* #define DEVF_recycled        0x0040  */
1402 /* #define DEVF_recycled        0x0080  */
1403 #define DEVF_SUPPORT32MB        0x0100
1404 #define DEVF_ANY_VXRES          0x0200
1405 #define DEVF_TEXT16B            0x0400
1406 #define DEVF_CRTC2              0x0800
1407 #define DEVF_MAVEN_CAPABLE      0x1000
1408 #define DEVF_PANELLINK_CAPABLE  0x2000
1409 #define DEVF_G450DAC            0x4000
1410
1411 #define DEVF_GCORE      (DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB)
1412 #define DEVF_G2CORE     (DEVF_GCORE | DEVF_ANY_VXRES | DEVF_MAVEN_CAPABLE | DEVF_PANELLINK_CAPABLE | DEVF_SRCORG | DEVF_DUALHEAD)
1413 #define DEVF_G100       (DEVF_GCORE) /* no doc, no vxres... */
1414 #define DEVF_G200       (DEVF_G2CORE)
1415 #define DEVF_G400       (DEVF_G2CORE | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2)
1416 /* if you'll find how to drive DFP... */
1417 #define DEVF_G450       (DEVF_GCORE | DEVF_ANY_VXRES | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2 | DEVF_G450DAC | DEVF_SRCORG | DEVF_DUALHEAD)
1418 #define DEVF_G550       (DEVF_G450)
1419
1420 static struct board {
1421         unsigned short vendor, device, rev, svid, sid;
1422         unsigned int flags;
1423         unsigned int maxclk;
1424         enum mga_chip chip;
1425         struct video_board* base;
1426         const char* name;
1427                 } dev_list[] = {
1428 #ifdef CONFIG_FB_MATROX_MILLENIUM
1429         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL,       0xFF,
1430                 0,                      0,
1431                 DEVF_TEXT4B,
1432                 230000,
1433                 MGA_2064,
1434                 &vbMillennium,
1435                 "Millennium (PCI)"},
1436         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2,     0xFF,
1437                 0,                      0,
1438                 DEVF_SWAPS,
1439                 220000,
1440                 MGA_2164,
1441                 &vbMillennium2,
1442                 "Millennium II (PCI)"},
1443         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2_AGP, 0xFF,
1444                 0,                      0,
1445                 DEVF_SWAPS,
1446                 250000,
1447                 MGA_2164,
1448                 &vbMillennium2A,
1449                 "Millennium II (AGP)"},
1450 #endif
1451 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1452         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS,       0x02,
1453                 0,                      0,
1454                 DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1455                 180000,
1456                 MGA_1064,
1457                 &vbMystique,
1458                 "Mystique (PCI)"},
1459         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS,       0xFF,
1460                 0,                      0,
1461                 DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1462                 220000,
1463                 MGA_1164,
1464                 &vbMystique,
1465                 "Mystique 220 (PCI)"},
1466         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS_AGP,   0x02,
1467                 0,                      0,
1468                 DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1469                 180000,
1470                 MGA_1064,
1471                 &vbMystique,
1472                 "Mystique (AGP)"},
1473         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS_AGP,   0xFF,
1474                 0,                      0,
1475                 DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1476                 220000,
1477                 MGA_1164,
1478                 &vbMystique,
1479                 "Mystique 220 (AGP)"},
1480 #endif
1481 #ifdef CONFIG_FB_MATROX_G
1482         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_MM,   0xFF,
1483                 0,                      0,
1484                 DEVF_G100,
1485                 230000,
1486                 MGA_G100,
1487                 &vbG100,
1488                 "MGA-G100 (PCI)"},
1489         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_AGP,  0xFF,
1490                 0,                      0,
1491                 DEVF_G100,
1492                 230000,
1493                 MGA_G100,
1494                 &vbG100,
1495                 "MGA-G100 (AGP)"},
1496         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_PCI,  0xFF,
1497                 0,                      0,
1498                 DEVF_G200,
1499                 250000,
1500                 MGA_G200,
1501                 &vbG200,
1502                 "MGA-G200 (PCI)"},
1503         {PCI_VENDOR_ID_MATROX,  0x0532, 0xFF,
1504                 0,                      0,
1505                 DEVF_G200,
1506                 250000,
1507                 MGA_G200,
1508                 &vbG200eW,
1509                 "MGA-G200eW (PCI)"},
1510         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1511                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_GENERIC,
1512                 DEVF_G200,
1513                 220000,
1514                 MGA_G200,
1515                 &vbG200,
1516                 "MGA-G200 (AGP)"},
1517         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1518                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP,
1519                 DEVF_G200,
1520                 230000,
1521                 MGA_G200,
1522                 &vbG200,
1523                 "Mystique G200 (AGP)"},
1524         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1525                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MILLENIUM_G200_AGP,
1526                 DEVF_G200,
1527                 250000,
1528                 MGA_G200,
1529                 &vbG200,
1530                 "Millennium G200 (AGP)"},
1531         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1532                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MARVEL_G200_AGP,
1533                 DEVF_G200,
1534                 230000,
1535                 MGA_G200,
1536                 &vbG200,
1537                 "Marvel G200 (AGP)"},
1538         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1539                 PCI_SS_VENDOR_ID_SIEMENS_NIXDORF,       PCI_SS_ID_SIEMENS_MGA_G200_AGP,
1540                 DEVF_G200,
1541                 230000,
1542                 MGA_G200,
1543                 &vbG200,
1544                 "MGA-G200 (AGP)"},
1545         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1546                 0,                      0,
1547                 DEVF_G200,
1548                 230000,
1549                 MGA_G200,
1550                 &vbG200,
1551                 "G200 (AGP)"},
1552         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,      0x80,
1553                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP,
1554                 DEVF_G400,
1555                 360000,
1556                 MGA_G400,
1557                 &vbG400,
1558                 "Millennium G400 MAX (AGP)"},
1559         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,      0x80,
1560                 0,                      0,
1561                 DEVF_G400,
1562                 300000,
1563                 MGA_G400,
1564                 &vbG400,
1565                 "G400 (AGP)"},
1566         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,      0xFF,
1567                 0,                      0,
1568                 DEVF_G450,
1569                 360000,
1570                 MGA_G450,
1571                 &vbG400,
1572                 "G450"},
1573         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G550,      0xFF,
1574                 0,                      0,
1575                 DEVF_G550,
1576                 360000,
1577                 MGA_G550,
1578                 &vbG400,
1579                 "G550"},
1580 #endif
1581         {0,                     0,                              0xFF,
1582                 0,                      0,
1583                 0,
1584                 0,
1585                 0,
1586                 NULL,
1587                 NULL}};
1588
1589 #ifndef MODULE
1590 static const struct fb_videomode defaultmode = {
1591         /* 640x480 @ 60Hz, 31.5 kHz */
1592         NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
1593         0, FB_VMODE_NONINTERLACED
1594 };
1595
1596 static int hotplug = 0;
1597 #endif /* !MODULE */
1598
1599 static void setDefaultOutputs(struct matrox_fb_info *minfo)
1600 {
1601         unsigned int i;
1602         const char* ptr;
1603
1604         minfo->outputs[0].default_src = MATROXFB_SRC_CRTC1;
1605         if (minfo->devflags.g450dac) {
1606                 minfo->outputs[1].default_src = MATROXFB_SRC_CRTC1;
1607                 minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1608         } else if (dfp) {
1609                 minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1610         }
1611         ptr = outputs;
1612         for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1613                 char c = *ptr++;
1614
1615                 if (c == 0) {
1616                         break;
1617                 }
1618                 if (c == '0') {
1619                         minfo->outputs[i].default_src = MATROXFB_SRC_NONE;
1620                 } else if (c == '1') {
1621                         minfo->outputs[i].default_src = MATROXFB_SRC_CRTC1;
1622                 } else if (c == '2' && minfo->devflags.crtc2) {
1623                         minfo->outputs[i].default_src = MATROXFB_SRC_CRTC2;
1624                 } else {
1625                         printk(KERN_ERR "matroxfb: Unknown outputs setting\n");
1626                         break;
1627                 }
1628         }
1629         /* Nullify this option for subsequent adapters */
1630         outputs[0] = 0;
1631 }
1632
1633 static int initMatrox2(struct matrox_fb_info *minfo, struct board *b)
1634 {
1635         unsigned long ctrlptr_phys = 0;
1636         unsigned long video_base_phys = 0;
1637         unsigned int memsize;
1638         int err;
1639
1640         static const struct pci_device_id intel_82437[] = {
1641                 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437) },
1642                 { },
1643         };
1644
1645         DBG(__func__)
1646
1647         /* set default values... */
1648         vesafb_defined.accel_flags = FB_ACCELF_TEXT;
1649
1650         minfo->hw_switch = b->base->lowlevel;
1651         minfo->devflags.accelerator = b->base->accelID;
1652         minfo->max_pixel_clock = b->maxclk;
1653
1654         printk(KERN_INFO "matroxfb: Matrox %s detected\n", b->name);
1655         minfo->capable.plnwt = 1;
1656         minfo->chip = b->chip;
1657         minfo->capable.srcorg = b->flags & DEVF_SRCORG;
1658         minfo->devflags.video64bits = b->flags & DEVF_VIDEO64BIT;
1659         if (b->flags & DEVF_TEXT4B) {
1660                 minfo->devflags.vgastep = 4;
1661                 minfo->devflags.textmode = 4;
1662                 minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1663         } else if (b->flags & DEVF_TEXT16B) {
1664                 minfo->devflags.vgastep = 16;
1665                 minfo->devflags.textmode = 1;
1666                 minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1667         } else {
1668                 minfo->devflags.vgastep = 8;
1669                 minfo->devflags.textmode = 1;
1670                 minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP8;
1671         }
1672         minfo->devflags.support32MB = (b->flags & DEVF_SUPPORT32MB) != 0;
1673         minfo->devflags.precise_width = !(b->flags & DEVF_ANY_VXRES);
1674         minfo->devflags.crtc2 = (b->flags & DEVF_CRTC2) != 0;
1675         minfo->devflags.maven_capable = (b->flags & DEVF_MAVEN_CAPABLE) != 0;
1676         minfo->devflags.dualhead = (b->flags & DEVF_DUALHEAD) != 0;
1677         minfo->devflags.dfp_type = dfp_type;
1678         minfo->devflags.g450dac = (b->flags & DEVF_G450DAC) != 0;
1679         minfo->devflags.textstep = minfo->devflags.vgastep * minfo->devflags.textmode;
1680         minfo->devflags.textvram = 65536 / minfo->devflags.textmode;
1681         setDefaultOutputs(minfo);
1682         if (b->flags & DEVF_PANELLINK_CAPABLE) {
1683                 minfo->outputs[2].data = minfo;
1684                 minfo->outputs[2].output = &panellink_output;
1685                 minfo->outputs[2].src = minfo->outputs[2].default_src;
1686                 minfo->outputs[2].mode = MATROXFB_OUTPUT_MODE_MONITOR;
1687                 minfo->devflags.panellink = 1;
1688         }
1689
1690         if (minfo->capable.cross4MB < 0)
1691                 minfo->capable.cross4MB = b->flags & DEVF_CROSS4MB;
1692         if (b->flags & DEVF_SWAPS) {
1693                 ctrlptr_phys = pci_resource_start(minfo->pcidev, 1);
1694                 video_base_phys = pci_resource_start(minfo->pcidev, 0);
1695                 minfo->devflags.fbResource = PCI_BASE_ADDRESS_0;
1696         } else {
1697                 ctrlptr_phys = pci_resource_start(minfo->pcidev, 0);
1698                 video_base_phys = pci_resource_start(minfo->pcidev, 1);
1699                 minfo->devflags.fbResource = PCI_BASE_ADDRESS_1;
1700         }
1701         err = -EINVAL;
1702         if (!ctrlptr_phys) {
1703                 printk(KERN_ERR "matroxfb: control registers are not available, matroxfb disabled\n");
1704                 goto fail;
1705         }
1706         if (!video_base_phys) {
1707                 printk(KERN_ERR "matroxfb: video RAM is not available in PCI address space, matroxfb disabled\n");
1708                 goto fail;
1709         }
1710         memsize = b->base->maxvram;
1711         if (!request_mem_region(ctrlptr_phys, 16384, "matroxfb MMIO")) {
1712                 goto fail;
1713         }
1714         if (!request_mem_region(video_base_phys, memsize, "matroxfb FB")) {
1715                 goto failCtrlMR;
1716         }
1717         minfo->video.len_maximum = memsize;
1718         /* convert mem (autodetect k, M) */
1719         if (mem < 1024) mem *= 1024;
1720         if (mem < 0x00100000) mem *= 1024;
1721
1722         if (mem && (mem < memsize))
1723                 memsize = mem;
1724         err = -ENOMEM;
1725
1726         minfo->mmio.vbase.vaddr = ioremap(ctrlptr_phys, 16384);
1727         if (!minfo->mmio.vbase.vaddr) {
1728                 printk(KERN_ERR "matroxfb: cannot ioremap(%lX, 16384), matroxfb disabled\n", ctrlptr_phys);
1729                 goto failVideoMR;
1730         }
1731         minfo->mmio.base = ctrlptr_phys;
1732         minfo->mmio.len = 16384;
1733         minfo->video.base = video_base_phys;
1734         minfo->video.vbase.vaddr = ioremap_wc(video_base_phys, memsize);
1735         if (!minfo->video.vbase.vaddr) {
1736                 printk(KERN_ERR "matroxfb: cannot ioremap(%lX, %d), matroxfb disabled\n",
1737                         video_base_phys, memsize);
1738                 goto failCtrlIO;
1739         }
1740         {
1741                 u_int32_t cmd;
1742                 u_int32_t mga_option;
1743
1744                 pci_read_config_dword(minfo->pcidev, PCI_OPTION_REG, &mga_option);
1745                 pci_read_config_dword(minfo->pcidev, PCI_COMMAND, &cmd);
1746                 mga_option &= 0x7FFFFFFF; /* clear BIG_ENDIAN */
1747                 mga_option |= MX_OPTION_BSWAP;
1748                 /* disable palette snooping */
1749                 cmd &= ~PCI_COMMAND_VGA_PALETTE;
1750                 if (pci_dev_present(intel_82437)) {
1751                         if (!(mga_option & 0x20000000) && !minfo->devflags.nopciretry) {
1752                                 printk(KERN_WARNING "matroxfb: Disabling PCI retries due to i82437 present\n");
1753                         }
1754                         mga_option |= 0x20000000;
1755                         minfo->devflags.nopciretry = 1;
1756                 }
1757                 pci_write_config_dword(minfo->pcidev, PCI_COMMAND, cmd);
1758                 pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, mga_option);
1759                 minfo->hw.MXoptionReg = mga_option;
1760
1761                 /* select non-DMA memory for PCI_MGA_DATA, otherwise dump of PCI cfg space can lock PCI bus */
1762                 /* maybe preinit() candidate, but it is same... for all devices... at this time... */
1763                 pci_write_config_dword(minfo->pcidev, PCI_MGA_INDEX, 0x00003C00);
1764         }
1765
1766         err = -ENXIO;
1767         matroxfb_read_pins(minfo);
1768         if (minfo->hw_switch->preinit(minfo)) {
1769                 goto failVideoIO;
1770         }
1771
1772         err = -ENOMEM;
1773         if (!matroxfb_getmemory(minfo, memsize, &minfo->video.len) || !minfo->video.len) {
1774                 printk(KERN_ERR "matroxfb: cannot determine memory size\n");
1775                 goto failVideoIO;
1776         }
1777         minfo->devflags.ydstorg = 0;
1778
1779         minfo->video.base = video_base_phys;
1780         minfo->video.len_usable = minfo->video.len;
1781         if (minfo->video.len_usable > b->base->maxdisplayable)
1782                 minfo->video.len_usable = b->base->maxdisplayable;
1783         if (mtrr)
1784                 minfo->wc_cookie = arch_phys_wc_add(video_base_phys,
1785                                                     minfo->video.len);
1786
1787         if (!minfo->devflags.novga)
1788                 request_region(0x3C0, 32, "matrox");
1789         matroxfb_g450_connect(minfo);
1790         minfo->hw_switch->reset(minfo);
1791
1792         minfo->fbcon.monspecs.hfmin = 0;
1793         minfo->fbcon.monspecs.hfmax = fh;
1794         minfo->fbcon.monspecs.vfmin = 0;
1795         minfo->fbcon.monspecs.vfmax = fv;
1796         minfo->fbcon.monspecs.dpms = 0; /* TBD */
1797
1798         /* static settings */
1799         vesafb_defined.red = colors[depth-1].red;
1800         vesafb_defined.green = colors[depth-1].green;
1801         vesafb_defined.blue = colors[depth-1].blue;
1802         vesafb_defined.bits_per_pixel = colors[depth-1].bits_per_pixel;
1803         vesafb_defined.grayscale = grayscale;
1804         vesafb_defined.vmode = 0;
1805         if (noaccel)
1806                 vesafb_defined.accel_flags &= ~FB_ACCELF_TEXT;
1807
1808         minfo->fbops = matroxfb_ops;
1809         minfo->fbcon.fbops = &minfo->fbops;
1810         minfo->fbcon.pseudo_palette = minfo->cmap;
1811         minfo->fbcon.flags = FBINFO_PARTIAL_PAN_OK |     /* Prefer panning for scroll under MC viewer/edit */
1812                                       FBINFO_HWACCEL_COPYAREA |  /* We have hw-assisted bmove */
1813                                       FBINFO_HWACCEL_FILLRECT |  /* And fillrect */
1814                                       FBINFO_HWACCEL_IMAGEBLIT | /* And imageblit */
1815                                       FBINFO_HWACCEL_XPAN |      /* And we support both horizontal */
1816                                       FBINFO_HWACCEL_YPAN |      /* And vertical panning */
1817                                       FBINFO_READS_FAST;
1818         minfo->video.len_usable &= PAGE_MASK;
1819         fb_alloc_cmap(&minfo->fbcon.cmap, 256, 1);
1820
1821 #ifndef MODULE
1822         /* mode database is marked __init!!! */
1823         if (!hotplug) {
1824                 fb_find_mode(&vesafb_defined, &minfo->fbcon, videomode[0] ? videomode : NULL,
1825                         NULL, 0, &defaultmode, vesafb_defined.bits_per_pixel);
1826         }
1827 #endif /* !MODULE */
1828
1829         /* mode modifiers */
1830         if (hslen)
1831                 vesafb_defined.hsync_len = hslen;
1832         if (vslen)
1833                 vesafb_defined.vsync_len = vslen;
1834         if (left != ~0)
1835                 vesafb_defined.left_margin = left;
1836         if (right != ~0)
1837                 vesafb_defined.right_margin = right;
1838         if (upper != ~0)
1839                 vesafb_defined.upper_margin = upper;
1840         if (lower != ~0)
1841                 vesafb_defined.lower_margin = lower;
1842         if (xres)
1843                 vesafb_defined.xres = xres;
1844         if (yres)
1845                 vesafb_defined.yres = yres;
1846         if (sync != -1)
1847                 vesafb_defined.sync = sync;
1848         else if (vesafb_defined.sync == ~0) {
1849                 vesafb_defined.sync = 0;
1850                 if (yres < 400)
1851                         vesafb_defined.sync |= FB_SYNC_HOR_HIGH_ACT;
1852                 else if (yres < 480)
1853                         vesafb_defined.sync |= FB_SYNC_VERT_HIGH_ACT;
1854         }
1855
1856         /* fv, fh, maxclk limits was specified */
1857         {
1858                 unsigned int tmp;
1859
1860                 if (fv) {
1861                         tmp = fv * (vesafb_defined.upper_margin + vesafb_defined.yres
1862                                   + vesafb_defined.lower_margin + vesafb_defined.vsync_len);
1863                         if ((tmp < fh) || (fh == 0)) fh = tmp;
1864                 }
1865                 if (fh) {
1866                         tmp = fh * (vesafb_defined.left_margin + vesafb_defined.xres
1867                                   + vesafb_defined.right_margin + vesafb_defined.hsync_len);
1868                         if ((tmp < maxclk) || (maxclk == 0)) maxclk = tmp;
1869                 }
1870                 tmp = (maxclk + 499) / 500;
1871                 if (tmp) {
1872                         tmp = (2000000000 + tmp) / tmp;
1873                         if (tmp > pixclock) pixclock = tmp;
1874                 }
1875         }
1876         if (pixclock) {
1877                 if (pixclock < 2000)            /* > 500MHz */
1878                         pixclock = 4000;        /* 250MHz */
1879                 if (pixclock > 1000000)
1880                         pixclock = 1000000;     /* 1MHz */
1881                 vesafb_defined.pixclock = pixclock;
1882         }
1883
1884         /* FIXME: Where to move this?! */
1885 #if defined(CONFIG_PPC_PMAC)
1886 #ifndef MODULE
1887         if (machine_is(powermac)) {
1888                 struct fb_var_screeninfo var;
1889
1890                 if (default_vmode <= 0 || default_vmode > VMODE_MAX)
1891                         default_vmode = VMODE_640_480_60;
1892 #if defined(CONFIG_PPC32)
1893                 if (IS_REACHABLE(CONFIG_NVRAM) && default_cmode == CMODE_NVRAM)
1894                         default_cmode = nvram_read_byte(NV_CMODE);
1895 #endif
1896                 if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
1897                         default_cmode = CMODE_8;
1898                 if (!mac_vmode_to_var(default_vmode, default_cmode, &var)) {
1899                         var.accel_flags = vesafb_defined.accel_flags;
1900                         var.xoffset = var.yoffset = 0;
1901                         /* Note: mac_vmode_to_var() does not set all parameters */
1902                         vesafb_defined = var;
1903                 }
1904         }
1905 #endif /* !MODULE */
1906 #endif /* CONFIG_PPC_PMAC */
1907         vesafb_defined.xres_virtual = vesafb_defined.xres;
1908         if (nopan) {
1909                 vesafb_defined.yres_virtual = vesafb_defined.yres;
1910         } else {
1911                 vesafb_defined.yres_virtual = 65536; /* large enough to be INF, but small enough
1912                                                         to yres_virtual * xres_virtual < 2^32 */
1913         }
1914         matroxfb_init_fix(minfo);
1915         minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase);
1916         /* Normalize values (namely yres_virtual) */
1917         matroxfb_check_var(&vesafb_defined, &minfo->fbcon);
1918         /* And put it into "current" var. Do NOT program hardware yet, or we'll not take over
1919          * vgacon correctly. fbcon_startup will call fb_set_par for us, WITHOUT check_var,
1920          * and unfortunately it will do it BEFORE vgacon contents is saved, so it won't work
1921          * anyway. But we at least tried... */
1922         minfo->fbcon.var = vesafb_defined;
1923         err = -EINVAL;
1924
1925         printk(KERN_INFO "matroxfb: %dx%dx%dbpp (virtual: %dx%d)\n",
1926                 vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel,
1927                 vesafb_defined.xres_virtual, vesafb_defined.yres_virtual);
1928         printk(KERN_INFO "matroxfb: framebuffer at 0x%lX, mapped to 0x%p, size %d\n",
1929                 minfo->video.base, vaddr_va(minfo->video.vbase), minfo->video.len);
1930
1931 /* We do not have to set currcon to 0... register_framebuffer do it for us on first console
1932  * and we do not want currcon == 0 for subsequent framebuffers */
1933
1934         minfo->fbcon.device = &minfo->pcidev->dev;
1935         if (register_framebuffer(&minfo->fbcon) < 0) {
1936                 goto failVideoIO;
1937         }
1938         fb_info(&minfo->fbcon, "%s frame buffer device\n", minfo->fbcon.fix.id);
1939
1940         /* there is no console on this fb... but we have to initialize hardware
1941          * until someone tells me what is proper thing to do */
1942         if (!minfo->initialized) {
1943                 fb_info(&minfo->fbcon, "initializing hardware\n");
1944                 /* We have to use FB_ACTIVATE_FORCE, as we had to put vesafb_defined to the fbcon.var
1945                  * already before, so register_framebuffer works correctly. */
1946                 vesafb_defined.activate |= FB_ACTIVATE_FORCE;
1947                 fb_set_var(&minfo->fbcon, &vesafb_defined);
1948         }
1949
1950         return 0;
1951 failVideoIO:;
1952         matroxfb_g450_shutdown(minfo);
1953         iounmap(minfo->video.vbase.vaddr);
1954 failCtrlIO:;
1955         iounmap(minfo->mmio.vbase.vaddr);
1956 failVideoMR:;
1957         release_mem_region(video_base_phys, minfo->video.len_maximum);
1958 failCtrlMR:;
1959         release_mem_region(ctrlptr_phys, 16384);
1960 fail:;
1961         return err;
1962 }
1963
1964 static LIST_HEAD(matroxfb_list);
1965 static LIST_HEAD(matroxfb_driver_list);
1966
1967 #define matroxfb_l(x) list_entry(x, struct matrox_fb_info, next_fb)
1968 #define matroxfb_driver_l(x) list_entry(x, struct matroxfb_driver, node)
1969 int matroxfb_register_driver(struct matroxfb_driver* drv) {
1970         struct matrox_fb_info* minfo;
1971
1972         list_add(&drv->node, &matroxfb_driver_list);
1973         list_for_each_entry(minfo, &matroxfb_list, next_fb) {
1974                 void* p;
1975
1976                 if (minfo->drivers_count == MATROXFB_MAX_FB_DRIVERS)
1977                         continue;
1978                 p = drv->probe(minfo);
1979                 if (p) {
1980                         minfo->drivers_data[minfo->drivers_count] = p;
1981                         minfo->drivers[minfo->drivers_count++] = drv;
1982                 }
1983         }
1984         return 0;
1985 }
1986
1987 void matroxfb_unregister_driver(struct matroxfb_driver* drv) {
1988         struct matrox_fb_info* minfo;
1989
1990         list_del(&drv->node);
1991         list_for_each_entry(minfo, &matroxfb_list, next_fb) {
1992                 int i;
1993
1994                 for (i = 0; i < minfo->drivers_count; ) {
1995                         if (minfo->drivers[i] == drv) {
1996                                 if (drv && drv->remove)
1997                                         drv->remove(minfo, minfo->drivers_data[i]);
1998                                 minfo->drivers[i] = minfo->drivers[--minfo->drivers_count];
1999                                 minfo->drivers_data[i] = minfo->drivers_data[minfo->drivers_count];
2000                         } else
2001                                 i++;
2002                 }
2003         }
2004 }
2005
2006 static void matroxfb_register_device(struct matrox_fb_info* minfo) {
2007         struct matroxfb_driver* drv;
2008         int i = 0;
2009         list_add(&minfo->next_fb, &matroxfb_list);
2010         for (drv = matroxfb_driver_l(matroxfb_driver_list.next);
2011              drv != matroxfb_driver_l(&matroxfb_driver_list);
2012              drv = matroxfb_driver_l(drv->node.next)) {
2013                 if (drv->probe) {
2014                         void *p = drv->probe(minfo);
2015                         if (p) {
2016                                 minfo->drivers_data[i] = p;
2017                                 minfo->drivers[i++] = drv;
2018                                 if (i == MATROXFB_MAX_FB_DRIVERS)
2019                                         break;
2020                         }
2021                 }
2022         }
2023         minfo->drivers_count = i;
2024 }
2025
2026 static void matroxfb_unregister_device(struct matrox_fb_info* minfo) {
2027         int i;
2028
2029         list_del(&minfo->next_fb);
2030         for (i = 0; i < minfo->drivers_count; i++) {
2031                 struct matroxfb_driver* drv = minfo->drivers[i];
2032
2033                 if (drv && drv->remove)
2034                         drv->remove(minfo, minfo->drivers_data[i]);
2035         }
2036 }
2037
2038 static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dummy) {
2039         struct board* b;
2040         u_int16_t svid;
2041         u_int16_t sid;
2042         struct matrox_fb_info* minfo;
2043         int err;
2044         u_int32_t cmd;
2045         DBG(__func__)
2046
2047         svid = pdev->subsystem_vendor;
2048         sid = pdev->subsystem_device;
2049         for (b = dev_list; b->vendor; b++) {
2050                 if ((b->vendor != pdev->vendor) || (b->device != pdev->device) || (b->rev < pdev->revision)) continue;
2051                 if (b->svid)
2052                         if ((b->svid != svid) || (b->sid != sid)) continue;
2053                 break;
2054         }
2055         /* not match... */
2056         if (!b->vendor)
2057                 return -ENODEV;
2058         if (dev > 0) {
2059                 /* not requested one... */
2060                 dev--;
2061                 return -ENODEV;
2062         }
2063         pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
2064         if (pci_enable_device(pdev)) {
2065                 return -1;
2066         }
2067
2068         minfo = kzalloc(sizeof(*minfo), GFP_KERNEL);
2069         if (!minfo)
2070                 return -ENOMEM;
2071
2072         minfo->pcidev = pdev;
2073         minfo->dead = 0;
2074         minfo->usecount = 0;
2075         minfo->userusecount = 0;
2076
2077         pci_set_drvdata(pdev, minfo);
2078         /* DEVFLAGS */
2079         minfo->devflags.memtype = memtype;
2080         if (memtype != -1)
2081                 noinit = 0;
2082         if (cmd & PCI_COMMAND_MEMORY) {
2083                 minfo->devflags.novga = novga;
2084                 minfo->devflags.nobios = nobios;
2085                 minfo->devflags.noinit = noinit;
2086                 /* subsequent heads always needs initialization and must not enable BIOS */
2087                 novga = 1;
2088                 nobios = 1;
2089                 noinit = 0;
2090         } else {
2091                 minfo->devflags.novga = 1;
2092                 minfo->devflags.nobios = 1;
2093                 minfo->devflags.noinit = 0;
2094         }
2095
2096         minfo->devflags.nopciretry = no_pci_retry;
2097         minfo->devflags.mga_24bpp_fix = inv24;
2098         minfo->devflags.precise_width = option_precise_width;
2099         minfo->devflags.sgram = sgram;
2100         minfo->capable.cross4MB = cross4MB;
2101
2102         spin_lock_init(&minfo->lock.DAC);
2103         spin_lock_init(&minfo->lock.accel);
2104         init_rwsem(&minfo->crtc2.lock);
2105         init_rwsem(&minfo->altout.lock);
2106         mutex_init(&minfo->fbcon.mm_lock);
2107         minfo->irq_flags = 0;
2108         init_waitqueue_head(&minfo->crtc1.vsync.wait);
2109         init_waitqueue_head(&minfo->crtc2.vsync.wait);
2110         minfo->crtc1.panpos = -1;
2111
2112         err = initMatrox2(minfo, b);
2113         if (!err) {
2114                 matroxfb_register_device(minfo);
2115                 return 0;
2116         }
2117         kfree(minfo);
2118         return -1;
2119 }
2120
2121 static void pci_remove_matrox(struct pci_dev* pdev) {
2122         struct matrox_fb_info* minfo;
2123
2124         minfo = pci_get_drvdata(pdev);
2125         matroxfb_remove(minfo, 1);
2126 }
2127
2128 static const struct pci_device_id matroxfb_devices[] = {
2129 #ifdef CONFIG_FB_MATROX_MILLENIUM
2130         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL,
2131                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2132         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2,
2133                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2134         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2_AGP,
2135                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2136 #endif
2137 #ifdef CONFIG_FB_MATROX_MYSTIQUE
2138         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS,
2139                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2140 #endif
2141 #ifdef CONFIG_FB_MATROX_G
2142         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_MM,
2143                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2144         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_AGP,
2145                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2146         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_PCI,
2147                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2148         {PCI_VENDOR_ID_MATROX,  0x0532,
2149                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2150         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,
2151                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2152         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,
2153                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2154         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G550,
2155                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2156 #endif
2157         {0,                     0,
2158                 0,              0,              0, 0, 0}
2159 };
2160
2161 MODULE_DEVICE_TABLE(pci, matroxfb_devices);
2162
2163
2164 static struct pci_driver matroxfb_driver = {
2165         .name =         "matroxfb",
2166         .id_table =     matroxfb_devices,
2167         .probe =        matroxfb_probe,
2168         .remove =       pci_remove_matrox,
2169 };
2170
2171 /* **************************** init-time only **************************** */
2172
2173 #define RSResolution(X) ((X) & 0x0F)
2174 #define RS640x400       1
2175 #define RS640x480       2
2176 #define RS800x600       3
2177 #define RS1024x768      4
2178 #define RS1280x1024     5
2179 #define RS1600x1200     6
2180 #define RS768x576       7
2181 #define RS960x720       8
2182 #define RS1152x864      9
2183 #define RS1408x1056     10
2184 #define RS640x350       11
2185 #define RS1056x344      12      /* 132 x 43 text */
2186 #define RS1056x400      13      /* 132 x 50 text */
2187 #define RS1056x480      14      /* 132 x 60 text */
2188 #define RSNoxNo         15
2189 /* 10-FF */
2190 static struct { int xres, yres, left, right, upper, lower, hslen, vslen, vfreq; } timmings[] __initdata = {
2191         {  640,  400,  48, 16, 39,  8,  96, 2, 70 },
2192         {  640,  480,  48, 16, 33, 10,  96, 2, 60 },
2193         {  800,  600, 144, 24, 28,  8, 112, 6, 60 },
2194         { 1024,  768, 160, 32, 30,  4, 128, 4, 60 },
2195         { 1280, 1024, 224, 32, 32,  4, 136, 4, 60 },
2196         { 1600, 1200, 272, 48, 32,  5, 152, 5, 60 },
2197         {  768,  576, 144, 16, 28,  6, 112, 4, 60 },
2198         {  960,  720, 144, 24, 28,  8, 112, 4, 60 },
2199         { 1152,  864, 192, 32, 30,  4, 128, 4, 60 },
2200         { 1408, 1056, 256, 40, 32,  5, 144, 5, 60 },
2201         {  640,  350,  48, 16, 39,  8,  96, 2, 70 },
2202         { 1056,  344,  96, 24, 59, 44, 160, 2, 70 },
2203         { 1056,  400,  96, 24, 39,  8, 160, 2, 70 },
2204         { 1056,  480,  96, 24, 36, 12, 160, 3, 60 },
2205         {    0,    0,  ~0, ~0, ~0, ~0,   0, 0,  0 }
2206 };
2207
2208 #define RSCreate(X,Y)   ((X) | ((Y) << 8))
2209 static struct { unsigned int vesa; unsigned int info; } *RSptr, vesamap[] __initdata = {
2210 /* default must be first */
2211         {    ~0, RSCreate(RSNoxNo,     RS8bpp ) },
2212         { 0x101, RSCreate(RS640x480,   RS8bpp ) },
2213         { 0x100, RSCreate(RS640x400,   RS8bpp ) },
2214         { 0x180, RSCreate(RS768x576,   RS8bpp ) },
2215         { 0x103, RSCreate(RS800x600,   RS8bpp ) },
2216         { 0x188, RSCreate(RS960x720,   RS8bpp ) },
2217         { 0x105, RSCreate(RS1024x768,  RS8bpp ) },
2218         { 0x190, RSCreate(RS1152x864,  RS8bpp ) },
2219         { 0x107, RSCreate(RS1280x1024, RS8bpp ) },
2220         { 0x198, RSCreate(RS1408x1056, RS8bpp ) },
2221         { 0x11C, RSCreate(RS1600x1200, RS8bpp ) },
2222         { 0x110, RSCreate(RS640x480,   RS15bpp) },
2223         { 0x181, RSCreate(RS768x576,   RS15bpp) },
2224         { 0x113, RSCreate(RS800x600,   RS15bpp) },
2225         { 0x189, RSCreate(RS960x720,   RS15bpp) },
2226         { 0x116, RSCreate(RS1024x768,  RS15bpp) },
2227         { 0x191, RSCreate(RS1152x864,  RS15bpp) },
2228         { 0x119, RSCreate(RS1280x1024, RS15bpp) },
2229         { 0x199, RSCreate(RS1408x1056, RS15bpp) },
2230         { 0x11D, RSCreate(RS1600x1200, RS15bpp) },
2231         { 0x111, RSCreate(RS640x480,   RS16bpp) },
2232         { 0x182, RSCreate(RS768x576,   RS16bpp) },
2233         { 0x114, RSCreate(RS800x600,   RS16bpp) },
2234         { 0x18A, RSCreate(RS960x720,   RS16bpp) },
2235         { 0x117, RSCreate(RS1024x768,  RS16bpp) },
2236         { 0x192, RSCreate(RS1152x864,  RS16bpp) },
2237         { 0x11A, RSCreate(RS1280x1024, RS16bpp) },
2238         { 0x19A, RSCreate(RS1408x1056, RS16bpp) },
2239         { 0x11E, RSCreate(RS1600x1200, RS16bpp) },
2240         { 0x1B2, RSCreate(RS640x480,   RS24bpp) },
2241         { 0x184, RSCreate(RS768x576,   RS24bpp) },
2242         { 0x1B5, RSCreate(RS800x600,   RS24bpp) },
2243         { 0x18C, RSCreate(RS960x720,   RS24bpp) },
2244         { 0x1B8, RSCreate(RS1024x768,  RS24bpp) },
2245         { 0x194, RSCreate(RS1152x864,  RS24bpp) },
2246         { 0x1BB, RSCreate(RS1280x1024, RS24bpp) },
2247         { 0x19C, RSCreate(RS1408x1056, RS24bpp) },
2248         { 0x1BF, RSCreate(RS1600x1200, RS24bpp) },
2249         { 0x112, RSCreate(RS640x480,   RS32bpp) },
2250         { 0x183, RSCreate(RS768x576,   RS32bpp) },
2251         { 0x115, RSCreate(RS800x600,   RS32bpp) },
2252         { 0x18B, RSCreate(RS960x720,   RS32bpp) },
2253         { 0x118, RSCreate(RS1024x768,  RS32bpp) },
2254         { 0x193, RSCreate(RS1152x864,  RS32bpp) },
2255         { 0x11B, RSCreate(RS1280x1024, RS32bpp) },
2256         { 0x19B, RSCreate(RS1408x1056, RS32bpp) },
2257         { 0x11F, RSCreate(RS1600x1200, RS32bpp) },
2258         { 0x010, RSCreate(RS640x350,   RS4bpp ) },
2259         { 0x012, RSCreate(RS640x480,   RS4bpp ) },
2260         { 0x102, RSCreate(RS800x600,   RS4bpp ) },
2261         { 0x104, RSCreate(RS1024x768,  RS4bpp ) },
2262         { 0x106, RSCreate(RS1280x1024, RS4bpp ) },
2263         {     0, 0                              }};
2264
2265 static void __init matroxfb_init_params(void) {
2266         /* fh from kHz to Hz */
2267         if (fh < 1000)
2268                 fh *= 1000;     /* 1kHz minimum */
2269         /* maxclk */
2270         if (maxclk < 1000) maxclk *= 1000;      /* kHz -> Hz, MHz -> kHz */
2271         if (maxclk < 1000000) maxclk *= 1000;   /* kHz -> Hz, 1MHz minimum */
2272         /* fix VESA number */
2273         if (vesa != ~0)
2274                 vesa &= 0x1DFF;         /* mask out clearscreen, acceleration and so on */
2275
2276         /* static settings */
2277         for (RSptr = vesamap; RSptr->vesa; RSptr++) {
2278                 if (RSptr->vesa == vesa) break;
2279         }
2280         if (!RSptr->vesa) {
2281                 printk(KERN_ERR "Invalid vesa mode 0x%04X\n", vesa);
2282                 RSptr = vesamap;
2283         }
2284         {
2285                 int res = RSResolution(RSptr->info)-1;
2286                 if (left == ~0)
2287                         left = timmings[res].left;
2288                 if (!xres)
2289                         xres = timmings[res].xres;
2290                 if (right == ~0)
2291                         right = timmings[res].right;
2292                 if (!hslen)
2293                         hslen = timmings[res].hslen;
2294                 if (upper == ~0)
2295                         upper = timmings[res].upper;
2296                 if (!yres)
2297                         yres = timmings[res].yres;
2298                 if (lower == ~0)
2299                         lower = timmings[res].lower;
2300                 if (!vslen)
2301                         vslen = timmings[res].vslen;
2302                 if (!(fv||fh||maxclk||pixclock))
2303                         fv = timmings[res].vfreq;
2304                 if (depth == -1)
2305                         depth = RSDepth(RSptr->info);
2306         }
2307 }
2308
2309 static int __init matrox_init(void) {
2310         int err;
2311
2312         matroxfb_init_params();
2313         err = pci_register_driver(&matroxfb_driver);
2314         dev = -1;       /* accept all new devices... */
2315         return err;
2316 }
2317
2318 /* **************************** exit-time only **************************** */
2319
2320 static void __exit matrox_done(void) {
2321         pci_unregister_driver(&matroxfb_driver);
2322 }
2323
2324 #ifndef MODULE
2325
2326 /* ************************* init in-kernel code ************************** */
2327
2328 static int __init matroxfb_setup(char *options) {
2329         char *this_opt;
2330
2331         DBG(__func__)
2332
2333         if (!options || !*options)
2334                 return 0;
2335
2336         while ((this_opt = strsep(&options, ",")) != NULL) {
2337                 if (!*this_opt) continue;
2338
2339                 dprintk("matroxfb_setup: option %s\n", this_opt);
2340
2341                 if (!strncmp(this_opt, "dev:", 4))
2342                         dev = simple_strtoul(this_opt+4, NULL, 0);
2343                 else if (!strncmp(this_opt, "depth:", 6)) {
2344                         switch (simple_strtoul(this_opt+6, NULL, 0)) {
2345                                 case 0: depth = RSText; break;
2346                                 case 4: depth = RS4bpp; break;
2347                                 case 8: depth = RS8bpp; break;
2348                                 case 15:depth = RS15bpp; break;
2349                                 case 16:depth = RS16bpp; break;
2350                                 case 24:depth = RS24bpp; break;
2351                                 case 32:depth = RS32bpp; break;
2352                                 default:
2353                                         printk(KERN_ERR "matroxfb: unsupported color depth\n");
2354                         }
2355                 } else if (!strncmp(this_opt, "xres:", 5))
2356                         xres = simple_strtoul(this_opt+5, NULL, 0);
2357                 else if (!strncmp(this_opt, "yres:", 5))
2358                         yres = simple_strtoul(this_opt+5, NULL, 0);
2359                 else if (!strncmp(this_opt, "vslen:", 6))
2360                         vslen = simple_strtoul(this_opt+6, NULL, 0);
2361                 else if (!strncmp(this_opt, "hslen:", 6))
2362                         hslen = simple_strtoul(this_opt+6, NULL, 0);
2363                 else if (!strncmp(this_opt, "left:", 5))
2364                         left = simple_strtoul(this_opt+5, NULL, 0);
2365                 else if (!strncmp(this_opt, "right:", 6))
2366                         right = simple_strtoul(this_opt+6, NULL, 0);
2367                 else if (!strncmp(this_opt, "upper:", 6))
2368                         upper = simple_strtoul(this_opt+6, NULL, 0);
2369                 else if (!strncmp(this_opt, "lower:", 6))
2370                         lower = simple_strtoul(this_opt+6, NULL, 0);
2371                 else if (!strncmp(this_opt, "pixclock:", 9))
2372                         pixclock = simple_strtoul(this_opt+9, NULL, 0);
2373                 else if (!strncmp(this_opt, "sync:", 5))
2374                         sync = simple_strtoul(this_opt+5, NULL, 0);
2375                 else if (!strncmp(this_opt, "vesa:", 5))
2376                         vesa = simple_strtoul(this_opt+5, NULL, 0);
2377                 else if (!strncmp(this_opt, "maxclk:", 7))
2378                         maxclk = simple_strtoul(this_opt+7, NULL, 0);
2379                 else if (!strncmp(this_opt, "fh:", 3))
2380                         fh = simple_strtoul(this_opt+3, NULL, 0);
2381                 else if (!strncmp(this_opt, "fv:", 3))
2382                         fv = simple_strtoul(this_opt+3, NULL, 0);
2383                 else if (!strncmp(this_opt, "mem:", 4))
2384                         mem = simple_strtoul(this_opt+4, NULL, 0);
2385                 else if (!strncmp(this_opt, "mode:", 5))
2386                         strlcpy(videomode, this_opt+5, sizeof(videomode));
2387                 else if (!strncmp(this_opt, "outputs:", 8))
2388                         strlcpy(outputs, this_opt+8, sizeof(outputs));
2389                 else if (!strncmp(this_opt, "dfp:", 4)) {
2390                         dfp_type = simple_strtoul(this_opt+4, NULL, 0);
2391                         dfp = 1;
2392                 }
2393 #ifdef CONFIG_PPC_PMAC
2394                 else if (!strncmp(this_opt, "vmode:", 6)) {
2395                         unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
2396                         if (vmode > 0 && vmode <= VMODE_MAX)
2397                                 default_vmode = vmode;
2398                 } else if (!strncmp(this_opt, "cmode:", 6)) {
2399                         unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
2400                         switch (cmode) {
2401                                 case 0:
2402                                 case 8:
2403                                         default_cmode = CMODE_8;
2404                                         break;
2405                                 case 15:
2406                                 case 16:
2407                                         default_cmode = CMODE_16;
2408                                         break;
2409                                 case 24:
2410                                 case 32:
2411                                         default_cmode = CMODE_32;
2412                                         break;
2413                         }
2414                 }
2415 #endif
2416                 else if (!strcmp(this_opt, "disabled")) /* nodisabled does not exist */
2417                         disabled = 1;
2418                 else if (!strcmp(this_opt, "enabled"))  /* noenabled does not exist */
2419                         disabled = 0;
2420                 else if (!strcmp(this_opt, "sgram"))    /* nosgram == sdram */
2421                         sgram = 1;
2422                 else if (!strcmp(this_opt, "sdram"))
2423                         sgram = 0;
2424                 else if (!strncmp(this_opt, "memtype:", 8))
2425                         memtype = simple_strtoul(this_opt+8, NULL, 0);
2426                 else {
2427                         int value = 1;
2428
2429                         if (!strncmp(this_opt, "no", 2)) {
2430                                 value = 0;
2431                                 this_opt += 2;
2432                         }
2433                         if (! strcmp(this_opt, "inverse"))
2434                                 inverse = value;
2435                         else if (!strcmp(this_opt, "accel"))
2436                                 noaccel = !value;
2437                         else if (!strcmp(this_opt, "pan"))
2438                                 nopan = !value;
2439                         else if (!strcmp(this_opt, "pciretry"))
2440                                 no_pci_retry = !value;
2441                         else if (!strcmp(this_opt, "vga"))
2442                                 novga = !value;
2443                         else if (!strcmp(this_opt, "bios"))
2444                                 nobios = !value;
2445                         else if (!strcmp(this_opt, "init"))
2446                                 noinit = !value;
2447                         else if (!strcmp(this_opt, "mtrr"))
2448                                 mtrr = value;
2449                         else if (!strcmp(this_opt, "inv24"))
2450                                 inv24 = value;
2451                         else if (!strcmp(this_opt, "cross4MB"))
2452                                 cross4MB = value;
2453                         else if (!strcmp(this_opt, "grayscale"))
2454                                 grayscale = value;
2455                         else if (!strcmp(this_opt, "dfp"))
2456                                 dfp = value;
2457                         else {
2458                                 strlcpy(videomode, this_opt, sizeof(videomode));
2459                         }
2460                 }
2461         }
2462         return 0;
2463 }
2464
2465 static int __initdata initialized = 0;
2466
2467 static int __init matroxfb_init(void)
2468 {
2469         char *option = NULL;
2470         int err = 0;
2471
2472         DBG(__func__)
2473
2474         if (fb_get_options("matroxfb", &option))
2475                 return -ENODEV;
2476         matroxfb_setup(option);
2477
2478         if (disabled)
2479                 return -ENXIO;
2480         if (!initialized) {
2481                 initialized = 1;
2482                 err = matrox_init();
2483         }
2484         hotplug = 1;
2485         /* never return failure, user can hotplug matrox later... */
2486         return err;
2487 }
2488
2489 #else
2490
2491 /* *************************** init module code **************************** */
2492
2493 MODULE_AUTHOR("(c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
2494 MODULE_DESCRIPTION("Accelerated FBDev driver for Matrox Millennium/Mystique/G100/G200/G400/G450/G550");
2495 MODULE_LICENSE("GPL");
2496
2497 module_param(mem, int, 0);
2498 MODULE_PARM_DESC(mem, "Size of available memory in MB, KB or B (2,4,8,12,16MB, default=autodetect)");
2499 module_param(disabled, int, 0);
2500 MODULE_PARM_DESC(disabled, "Disabled (0 or 1=disabled) (default=0)");
2501 module_param(noaccel, int, 0);
2502 MODULE_PARM_DESC(noaccel, "Do not use accelerating engine (0 or 1=disabled) (default=0)");
2503 module_param(nopan, int, 0);
2504 MODULE_PARM_DESC(nopan, "Disable pan on startup (0 or 1=disabled) (default=0)");
2505 module_param(no_pci_retry, int, 0);
2506 MODULE_PARM_DESC(no_pci_retry, "PCI retries enabled (0 or 1=disabled) (default=0)");
2507 module_param(novga, int, 0);
2508 MODULE_PARM_DESC(novga, "VGA I/O (0x3C0-0x3DF) disabled (0 or 1=disabled) (default=0)");
2509 module_param(nobios, int, 0);
2510 MODULE_PARM_DESC(nobios, "Disables ROM BIOS (0 or 1=disabled) (default=do not change BIOS state)");
2511 module_param(noinit, int, 0);
2512 MODULE_PARM_DESC(noinit, "Disables W/SG/SD-RAM and bus interface initialization (0 or 1=do not initialize) (default=0)");
2513 module_param(memtype, int, 0);
2514 MODULE_PARM_DESC(memtype, "Memory type for G200/G400 (see Documentation/fb/matroxfb.rst for explanation) (default=3 for G200, 0 for G400)");
2515 module_param(mtrr, int, 0);
2516 MODULE_PARM_DESC(mtrr, "This speeds up video memory accesses (0=disabled or 1) (default=1)");
2517 module_param(sgram, int, 0);
2518 MODULE_PARM_DESC(sgram, "Indicates that G100/G200/G400 has SGRAM memory (0=SDRAM, 1=SGRAM) (default=0)");
2519 module_param(inv24, int, 0);
2520 MODULE_PARM_DESC(inv24, "Inverts clock polarity for 24bpp and loop frequency > 100MHz (default=do not invert polarity)");
2521 module_param(inverse, int, 0);
2522 MODULE_PARM_DESC(inverse, "Inverse (0 or 1) (default=0)");
2523 module_param(dev, int, 0);
2524 MODULE_PARM_DESC(dev, "Multihead support, attach to device ID (0..N) (default=all working)");
2525 module_param(vesa, int, 0);
2526 MODULE_PARM_DESC(vesa, "Startup videomode (0x000-0x1FF) (default=0x101)");
2527 module_param(xres, int, 0);
2528 MODULE_PARM_DESC(xres, "Horizontal resolution (px), overrides xres from vesa (default=vesa)");
2529 module_param(yres, int, 0);
2530 MODULE_PARM_DESC(yres, "Vertical resolution (scans), overrides yres from vesa (default=vesa)");
2531 module_param(upper, int, 0);
2532 MODULE_PARM_DESC(upper, "Upper blank space (scans), overrides upper from vesa (default=vesa)");
2533 module_param(lower, int, 0);
2534 MODULE_PARM_DESC(lower, "Lower blank space (scans), overrides lower from vesa (default=vesa)");
2535 module_param(vslen, int, 0);
2536 MODULE_PARM_DESC(vslen, "Vertical sync length (scans), overrides lower from vesa (default=vesa)");
2537 module_param(left, int, 0);
2538 MODULE_PARM_DESC(left, "Left blank space (px), overrides left from vesa (default=vesa)");
2539 module_param(right, int, 0);
2540 MODULE_PARM_DESC(right, "Right blank space (px), overrides right from vesa (default=vesa)");
2541 module_param(hslen, int, 0);
2542 MODULE_PARM_DESC(hslen, "Horizontal sync length (px), overrides hslen from vesa (default=vesa)");
2543 module_param(pixclock, int, 0);
2544 MODULE_PARM_DESC(pixclock, "Pixelclock (ns), overrides pixclock from vesa (default=vesa)");
2545 module_param(sync, int, 0);
2546 MODULE_PARM_DESC(sync, "Sync polarity, overrides sync from vesa (default=vesa)");
2547 module_param(depth, int, 0);
2548 MODULE_PARM_DESC(depth, "Color depth (0=text,8,15,16,24,32) (default=vesa)");
2549 module_param(maxclk, int, 0);
2550 MODULE_PARM_DESC(maxclk, "Startup maximal clock, 0-999MHz, 1000-999999kHz, 1000000-INF Hz");
2551 module_param(fh, int, 0);
2552 MODULE_PARM_DESC(fh, "Startup horizontal frequency, 0-999kHz, 1000-INF Hz");
2553 module_param(fv, int, 0);
2554 MODULE_PARM_DESC(fv, "Startup vertical frequency, 0-INF Hz\n"
2555 "You should specify \"fv:max_monitor_vsync,fh:max_monitor_hsync,maxclk:max_monitor_dotclock\"");
2556 module_param(grayscale, int, 0);
2557 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)");
2558 module_param(cross4MB, int, 0);
2559 MODULE_PARM_DESC(cross4MB, "Specifies that 4MB boundary can be in middle of line. (default=autodetected)");
2560 module_param(dfp, int, 0);
2561 MODULE_PARM_DESC(dfp, "Specifies whether to use digital flat panel interface of G200/G400 (0 or 1) (default=0)");
2562 module_param(dfp_type, int, 0);
2563 MODULE_PARM_DESC(dfp_type, "Specifies DFP interface type (0 to 255) (default=read from hardware)");
2564 module_param_string(outputs, outputs, sizeof(outputs), 0);
2565 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)");
2566 #ifdef CONFIG_PPC_PMAC
2567 module_param_named(vmode, default_vmode, int, 0);
2568 MODULE_PARM_DESC(vmode, "Specify the vmode mode number that should be used (640x480 default)");
2569 module_param_named(cmode, default_cmode, int, 0);
2570 MODULE_PARM_DESC(cmode, "Specify the video depth that should be used (8bit default)");
2571 #endif
2572
2573 static int __init matroxfb_init(void){
2574
2575         DBG(__func__)
2576
2577         if (disabled)
2578                 return -ENXIO;
2579
2580         if (depth == 0)
2581                 depth = RSText;
2582         else if (depth == 4)
2583                 depth = RS4bpp;
2584         else if (depth == 8)
2585                 depth = RS8bpp;
2586         else if (depth == 15)
2587                 depth = RS15bpp;
2588         else if (depth == 16)
2589                 depth = RS16bpp;
2590         else if (depth == 24)
2591                 depth = RS24bpp;
2592         else if (depth == 32)
2593                 depth = RS32bpp;
2594         else if (depth != -1) {
2595                 printk(KERN_ERR "matroxfb: depth %d is not supported, using default\n", depth);
2596                 depth = -1;
2597         }
2598         matrox_init();
2599         /* never return failure; user can hotplug matrox later... */
2600         return 0;
2601 }
2602 #endif  /* MODULE */
2603
2604 module_init(matroxfb_init);
2605 module_exit(matrox_done);
2606 EXPORT_SYMBOL(matroxfb_register_driver);
2607 EXPORT_SYMBOL(matroxfb_unregister_driver);
2608 EXPORT_SYMBOL(matroxfb_wait_for_sync);
2609 EXPORT_SYMBOL(matroxfb_enable_irq);