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/aperture.h>
 104 #include <linux/version.h>
 105
 106 #include "matroxfb_base.h"
 107 #include "matroxfb_misc.h"
 108 #include "matroxfb_accel.h"
 109 #include "matroxfb_DAC1064.h"
 110 #include "matroxfb_Ti3026.h"
 111 #include "matroxfb_maven.h"
 112 #include "matroxfb_crtc2.h"
 113 #include "matroxfb_g450.h"
 114 #include <linux/matroxfb.h>
 115 #include <linux/interrupt.h>
 116 #include <linux/nvram.h>
 117 #include <linux/slab.h>
 118 #include <linux/uaccess.h>
 119
 120 #ifdef CONFIG_PPC_PMAC
 121 #include <asm/machdep.h>
 122 static int default_vmode = VMODE_NVRAM;
 123 static int default_cmode = CMODE_NVRAM;
 124 #endif
 125
 126 static void matroxfb_unregister_device(struct matrox_fb_info* minfo);
 127
 128 /* --------------------------------------------------------------------- */
 129
 130 /*
 131  * card parameters
 132  */
 133
 134 /* --------------------------------------------------------------------- */
 135
 136 static struct fb_var_screeninfo vesafb_defined = {
 137         640,480,640,480,/* W,H, W, H (virtual) load xres,xres_virtual*/
 138         0,0,            /* virtual -> visible no offset */
 139         8,              /* depth -> load bits_per_pixel */
 140         0,              /* greyscale ? */
 141         {0,0,0},        /* R */
 142         {0,0,0},        /* G */
 143         {0,0,0},        /* B */
 144         {0,0,0},        /* transparency */
 145         0,              /* standard pixel format */
 146         FB_ACTIVATE_NOW,
 147         -1,-1,
 148         FB_ACCELF_TEXT, /* accel flags */
 149         39721L,48L,16L,33L,10L,
 150         96L,2L,~0,      /* No sync info */
 151         FB_VMODE_NONINTERLACED,
 152 };
 153
 154
 155
 156 /* --------------------------------------------------------------------- */
 157 static void update_crtc2(struct matrox_fb_info *minfo, unsigned int pos)
 158 {
 159         struct matroxfb_dh_fb_info *info = minfo->crtc2.info;
 160
 161         /* Make sure that displays are compatible */
 162         if (info && (info->fbcon.var.bits_per_pixel == minfo->fbcon.var.bits_per_pixel)
 163                  && (info->fbcon.var.xres_virtual == minfo->fbcon.var.xres_virtual)
 164                  && (info->fbcon.var.green.length == minfo->fbcon.var.green.length)
 165                  ) {
 166                 switch (minfo->fbcon.var.bits_per_pixel) {
 167                         case 16:
 168                         case 32:
 169                                 pos = pos * 8;
 170                                 if (info->interlaced) {
 171                                         mga_outl(0x3C2C, pos);
 172                                         mga_outl(0x3C28, pos + minfo->fbcon.var.xres_virtual * minfo->fbcon.var.bits_per_pixel / 8);
 173                                 } else {
 174                                         mga_outl(0x3C28, pos);
 175                                 }
 176                                 break;
 177                 }
 178         }
 179 }
 180
 181 static void matroxfb_crtc1_panpos(struct matrox_fb_info *minfo)
 182 {
 183         if (minfo->crtc1.panpos >= 0) {
 184                 unsigned long flags;
 185                 int panpos;
 186
 187                 matroxfb_DAC_lock_irqsave(flags);
 188                 panpos = minfo->crtc1.panpos;
 189                 if (panpos >= 0) {
 190                         unsigned int extvga_reg;
 191
 192                         minfo->crtc1.panpos = -1; /* No update pending anymore */
 193                         extvga_reg = mga_inb(M_EXTVGA_INDEX);
 194                         mga_setr(M_EXTVGA_INDEX, 0x00, panpos);
 195                         if (extvga_reg != 0x00) {
 196                                 mga_outb(M_EXTVGA_INDEX, extvga_reg);
 197                         }
 198                 }
 199                 matroxfb_DAC_unlock_irqrestore(flags);
 200         }
 201 }
 202
 203 static irqreturn_t matrox_irq(int irq, void *dev_id)
 204 {
 205         u_int32_t status;
 206         int handled = 0;
 207         struct matrox_fb_info *minfo = dev_id;
 208
 209         status = mga_inl(M_STATUS);
 210
 211         if (status & 0x20) {
 212                 mga_outl(M_ICLEAR, 0x20);
 213                 minfo->crtc1.vsync.cnt++;
 214                 matroxfb_crtc1_panpos(minfo);
 215                 wake_up_interruptible(&minfo->crtc1.vsync.wait);
 216                 handled = 1;
 217         }
 218         if (status & 0x200) {
 219                 mga_outl(M_ICLEAR, 0x200);
 220                 minfo->crtc2.vsync.cnt++;
 221                 wake_up_interruptible(&minfo->crtc2.vsync.wait);
 222                 handled = 1;
 223         }
 224         return IRQ_RETVAL(handled);
 225 }
 226
 227 int matroxfb_enable_irq(struct matrox_fb_info *minfo, int reenable)
 228 {
 229         u_int32_t bm;
 230
 231         if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
 232                 bm = 0x220;
 233         else
 234                 bm = 0x020;
 235
 236         if (!test_and_set_bit(0, &minfo->irq_flags)) {
 237                 if (request_irq(minfo->pcidev->irq, matrox_irq,
 238                                 IRQF_SHARED, "matroxfb", minfo)) {
 239                         clear_bit(0, &minfo->irq_flags);
 240                         return -EINVAL;
 241                 }
 242                 /* Clear any pending field interrupts */
 243                 mga_outl(M_ICLEAR, bm);
 244                 mga_outl(M_IEN, mga_inl(M_IEN) | bm);
 245         } else if (reenable) {
 246                 u_int32_t ien;
 247
 248                 ien = mga_inl(M_IEN);
 249                 if ((ien & bm) != bm) {
 250                         printk(KERN_DEBUG "matroxfb: someone disabled IRQ [%08X]\n", ien);
 251                         mga_outl(M_IEN, ien | bm);
 252                 }
 253         }
 254         return 0;
 255 }
 256
 257 static void matroxfb_disable_irq(struct matrox_fb_info *minfo)
 258 {
 259         if (test_and_clear_bit(0, &minfo->irq_flags)) {
 260                 /* Flush pending pan-at-vbl request... */
 261                 matroxfb_crtc1_panpos(minfo);
 262                 if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
 263                         mga_outl(M_IEN, mga_inl(M_IEN) & ~0x220);
 264                 else
 265                         mga_outl(M_IEN, mga_inl(M_IEN) & ~0x20);
 266                 free_irq(minfo->pcidev->irq, minfo);
 267         }
 268 }
 269
 270 int matroxfb_wait_for_sync(struct matrox_fb_info *minfo, u_int32_t crtc)
 271 {
 272         struct matrox_vsync *vs;
 273         unsigned int cnt;
 274         int ret;
 275
 276         switch (crtc) {
 277                 case 0:
 278                         vs = &minfo->crtc1.vsync;
 279                         break;
 280                 case 1:
 281                         if (minfo->devflags.accelerator != FB_ACCEL_MATROX_MGAG400) {
 282                                 return -ENODEV;
 283                         }
 284                         vs = &minfo->crtc2.vsync;
 285                         break;
 286                 default:
 287                         return -ENODEV;
 288         }
 289         ret = matroxfb_enable_irq(minfo, 0);
 290         if (ret) {
 291                 return ret;
 292         }
 293
 294         cnt = vs->cnt;
 295         ret = wait_event_interruptible_timeout(vs->wait, cnt != vs->cnt, HZ/10);
 296         if (ret < 0) {
 297                 return ret;
 298         }
 299         if (ret == 0) {
 300                 matroxfb_enable_irq(minfo, 1);
 301                 return -ETIMEDOUT;
 302         }
 303         return 0;
 304 }
 305
 306 /* --------------------------------------------------------------------- */
 307
 308 static void matrox_pan_var(struct matrox_fb_info *minfo,
 309                            struct fb_var_screeninfo *var)
 310 {
 311         unsigned int pos;
 312         unsigned short p0, p1, p2;
 313         unsigned int p3;
 314         int vbl;
 315         unsigned long flags;
 316
 317         CRITFLAGS
 318
 319         DBG(__func__)
 320
 321         if (minfo->dead)
 322                 return;
 323
 324         minfo->fbcon.var.xoffset = var->xoffset;
 325         minfo->fbcon.var.yoffset = var->yoffset;
 326         pos = (minfo->fbcon.var.yoffset * minfo->fbcon.var.xres_virtual + minfo->fbcon.var.xoffset) * minfo->curr.final_bppShift / 32;
 327         pos += minfo->curr.ydstorg.chunks;
 328         p0 = minfo->hw.CRTC[0x0D] = pos & 0xFF;
 329         p1 = minfo->hw.CRTC[0x0C] = (pos & 0xFF00) >> 8;
 330         p2 = minfo->hw.CRTCEXT[0] = (minfo->hw.CRTCEXT[0] & 0xB0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
 331         p3 = minfo->hw.CRTCEXT[8] = pos >> 21;
 332
 333         /* FB_ACTIVATE_VBL and we can acquire interrupts? Honor FB_ACTIVATE_VBL then... */
 334         vbl = (var->activate & FB_ACTIVATE_VBL) && (matroxfb_enable_irq(minfo, 0) == 0);
 335
 336         CRITBEGIN
 337
 338         matroxfb_DAC_lock_irqsave(flags);
 339         mga_setr(M_CRTC_INDEX, 0x0D, p0);
 340         mga_setr(M_CRTC_INDEX, 0x0C, p1);
 341         if (minfo->devflags.support32MB)
 342                 mga_setr(M_EXTVGA_INDEX, 0x08, p3);
 343         if (vbl) {
 344                 minfo->crtc1.panpos = p2;
 345         } else {
 346                 /* Abort any pending change */
 347                 minfo->crtc1.panpos = -1;
 348                 mga_setr(M_EXTVGA_INDEX, 0x00, p2);
 349         }
 350         matroxfb_DAC_unlock_irqrestore(flags);
 351
 352         update_crtc2(minfo, pos);
 353
 354         CRITEND
 355 }
 356
 357 static void matroxfb_remove(struct matrox_fb_info *minfo, int dummy)
 358 {
 359         /* Currently we are holding big kernel lock on all dead & usecount updates.
 360          * Destroy everything after all users release it. Especially do not unregister
 361          * framebuffer and iounmap memory, neither fbmem nor fbcon-cfb* does not check
 362          * for device unplugged when in use.
 363          * In future we should point mmio.vbase & video.vbase somewhere where we can
 364          * write data without causing too much damage...
 365          */
 366
 367         minfo->dead = 1;
 368         if (minfo->usecount) {
 369                 /* destroy it later */
 370                 return;
 371         }
 372         matroxfb_unregister_device(minfo);
 373         unregister_framebuffer(&minfo->fbcon);
 374         matroxfb_g450_shutdown(minfo);
 375         arch_phys_wc_del(minfo->wc_cookie);
 376         iounmap(minfo->mmio.vbase.vaddr);
 377         iounmap(minfo->video.vbase.vaddr);
 378         release_mem_region(minfo->video.base, minfo->video.len_maximum);
 379         release_mem_region(minfo->mmio.base, 16384);
 380         kfree(minfo);
 381 }
 382
 383         /*
 384          * Open/Release the frame buffer device
 385          */
 386
 387 static int matroxfb_open(struct fb_info *info, int user)
 388 {
 389         struct matrox_fb_info *minfo = info2minfo(info);
 390
 391         DBG_LOOP(__func__)
 392
 393         if (minfo->dead) {
 394                 return -ENXIO;
 395         }
 396         minfo->usecount++;
 397         if (user) {
 398                 minfo->userusecount++;
 399         }
 400         return(0);
 401 }
 402
 403 static int matroxfb_release(struct fb_info *info, int user)
 404 {
 405         struct matrox_fb_info *minfo = info2minfo(info);
 406
 407         DBG_LOOP(__func__)
 408
 409         if (user) {
 410                 if (0 == --minfo->userusecount) {
 411                         matroxfb_disable_irq(minfo);
 412                 }
 413         }
 414         if (!(--minfo->usecount) && minfo->dead) {
 415                 matroxfb_remove(minfo, 0);
 416         }
 417         return(0);
 418 }
 419
 420 static int matroxfb_pan_display(struct fb_var_screeninfo *var,
 421                 struct fb_info* info) {
 422         struct matrox_fb_info *minfo = info2minfo(info);
 423
 424         DBG(__func__)
 425
 426         matrox_pan_var(minfo, var);
 427         return 0;
 428 }
 429
 430 static int matroxfb_get_final_bppShift(const struct matrox_fb_info *minfo,
 431                                        int bpp)
 432 {
 433         int bppshft2;
 434
 435         DBG(__func__)
 436
 437         bppshft2 = bpp;
 438         if (!bppshft2) {
 439                 return 8;
 440         }
 441         if (isInterleave(minfo))
 442                 bppshft2 >>= 1;
 443         if (minfo->devflags.video64bits)
 444                 bppshft2 >>= 1;
 445         return bppshft2;
 446 }
 447
 448 static int matroxfb_test_and_set_rounding(const struct matrox_fb_info *minfo,
 449                                           int xres, int bpp)
 450 {
 451         int over;
 452         int rounding;
 453
 454         DBG(__func__)
 455
 456         switch (bpp) {
 457                 case 0:         return xres;
 458                 case 4:         rounding = 128;
 459                                 break;
 460                 case 8:         rounding = 64;  /* doc says 64; 32 is OK for G400 */
 461                                 break;
 462                 case 16:        rounding = 32;
 463                                 break;
 464                 case 24:        rounding = 64;  /* doc says 64; 32 is OK for G400 */
 465                                 break;
 466                 default:        rounding = 16;
 467                                 /* on G400, 16 really does not work */
 468                                 if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
 469                                         rounding = 32;
 470                                 break;
 471         }
 472         if (isInterleave(minfo)) {
 473                 rounding *= 2;
 474         }
 475         over = xres % rounding;
 476         if (over)
 477                 xres += rounding-over;
 478         return xres;
 479 }
 480
 481 static int matroxfb_pitch_adjust(const struct matrox_fb_info *minfo, int xres,
 482                                  int bpp)
 483 {
 484         const int* width;
 485         int xres_new;
 486
 487         DBG(__func__)
 488
 489         if (!bpp) return xres;
 490
 491         width = minfo->capable.vxres;
 492
 493         if (minfo->devflags.precise_width) {
 494                 while (*width) {
 495                         if ((*width >= xres) && (matroxfb_test_and_set_rounding(minfo, *width, bpp) == *width)) {
 496                                 break;
 497                         }
 498                         width++;
 499                 }
 500                 xres_new = *width;
 501         } else {
 502                 xres_new = matroxfb_test_and_set_rounding(minfo, xres, bpp);
 503         }
 504         return xres_new;
 505 }
 506
 507 static int matroxfb_get_cmap_len(struct fb_var_screeninfo *var) {
 508
 509         DBG(__func__)
 510
 511         switch (var->bits_per_pixel) {
 512                 case 4:
 513                         return 16;      /* pseudocolor... 16 entries HW palette */
 514                 case 8:
 515                         return 256;     /* pseudocolor... 256 entries HW palette */
 516                 case 16:
 517                         return 16;      /* directcolor... 16 entries SW palette */
 518                                         /* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
 519                 case 24:
 520                         return 16;      /* directcolor... 16 entries SW palette */
 521                                         /* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
 522                 case 32:
 523                         return 16;      /* directcolor... 16 entries SW palette */
 524                                         /* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
 525         }
 526         return 16;      /* return something reasonable... or panic()? */
 527 }
 528
 529 static int matroxfb_decode_var(const struct matrox_fb_info *minfo,
 530                                struct fb_var_screeninfo *var, int *visual,
 531                                int *video_cmap_len, unsigned int* ydstorg)
 532 {
 533         struct RGBT {
 534                 unsigned char bpp;
 535                 struct {
 536                         unsigned char offset,
 537                                       length;
 538                 } red,
 539                   green,
 540                   blue,
 541                   transp;
 542                 signed char visual;
 543         };
 544         static const struct RGBT table[]= {
 545                 { 8,{ 0,8},{0,8},{0,8},{ 0,0},MX_VISUAL_PSEUDOCOLOR},
 546                 {15,{10,5},{5,5},{0,5},{15,1},MX_VISUAL_DIRECTCOLOR},
 547                 {16,{11,5},{5,6},{0,5},{ 0,0},MX_VISUAL_DIRECTCOLOR},
 548                 {24,{16,8},{8,8},{0,8},{ 0,0},MX_VISUAL_DIRECTCOLOR},
 549                 {32,{16,8},{8,8},{0,8},{24,8},MX_VISUAL_DIRECTCOLOR}
 550         };
 551         struct RGBT const *rgbt;
 552         unsigned int bpp = var->bits_per_pixel;
 553         unsigned int vramlen;
 554         unsigned int memlen;
 555
 556         DBG(__func__)
 557
 558         switch (bpp) {
 559                 case 4:  if (!minfo->capable.cfb4) return -EINVAL;
 560                          break;
 561                 case 8:  break;
 562                 case 16: break;
 563                 case 24: break;
 564                 case 32: break;
 565                 default: return -EINVAL;
 566         }
 567         *ydstorg = 0;
 568         vramlen = minfo->video.len_usable;
 569         if (var->yres_virtual < var->yres)
 570                 var->yres_virtual = var->yres;
 571         if (var->xres_virtual < var->xres)
 572                 var->xres_virtual = var->xres;
 573
 574         var->xres_virtual = matroxfb_pitch_adjust(minfo, var->xres_virtual, bpp);
 575         memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
 576         if (memlen > vramlen) {
 577                 var->yres_virtual = vramlen * 8 / (var->xres_virtual * bpp);
 578                 memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
 579         }
 580         /* There is hardware bug that no line can cross 4MB boundary */
 581         /* give up for CFB24, it is impossible to easy workaround it */
 582         /* for other try to do something */
 583         if (!minfo->capable.cross4MB && (memlen > 0x400000)) {
 584                 if (bpp == 24) {
 585                         /* sorry */
 586                 } else {
 587                         unsigned int linelen;
 588                         unsigned int m1 = linelen = var->xres_virtual * bpp / 8;
 589                         unsigned int m2 = PAGE_SIZE;    /* or 128 if you do not need PAGE ALIGNED address */
 590                         unsigned int max_yres;
 591
 592                         while (m1) {
 593                                 while (m2 >= m1) m2 -= m1;
 594                                 swap(m1, m2);
 595                         }
 596                         m2 = linelen * PAGE_SIZE / m2;
 597                         *ydstorg = m2 = 0x400000 % m2;
 598                         max_yres = (vramlen - m2) / linelen;
 599                         if (var->yres_virtual > max_yres)
 600                                 var->yres_virtual = max_yres;
 601                 }
 602         }
 603         /* YDSTLEN contains only signed 16bit value */
 604         if (var->yres_virtual > 32767)
 605                 var->yres_virtual = 32767;
 606         /* we must round yres/xres down, we already rounded y/xres_virtual up
 607            if it was possible. We should return -EINVAL, but I disagree */
 608         if (var->yres_virtual < var->yres)
 609                 var->yres = var->yres_virtual;
 610         if (var->xres_virtual < var->xres)
 611                 var->xres = var->xres_virtual;
 612         if (var->xoffset + var->xres > var->xres_virtual)
 613                 var->xoffset = var->xres_virtual - var->xres;
 614         if (var->yoffset + var->yres > var->yres_virtual)
 615                 var->yoffset = var->yres_virtual - var->yres;
 616
 617         if (bpp == 16 && var->green.length == 5) {
 618                 bpp--; /* an artificial value - 15 */
 619         }
 620
 621         for (rgbt = table; rgbt->bpp < bpp; rgbt++);
 622 #define SETCLR(clr)\
 623         var->clr.offset = rgbt->clr.offset;\
 624         var->clr.length = rgbt->clr.length
 625         SETCLR(red);
 626         SETCLR(green);
 627         SETCLR(blue);
 628         SETCLR(transp);
 629 #undef  SETCLR
 630         *visual = rgbt->visual;
 631
 632         if (bpp > 8)
 633                 dprintk("matroxfb: truecolor: "
 634                         "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
 635                         var->transp.length, var->red.length, var->green.length, var->blue.length,
 636                         var->transp.offset, var->red.offset, var->green.offset, var->blue.offset);
 637
 638         *video_cmap_len = matroxfb_get_cmap_len(var);
 639         dprintk(KERN_INFO "requested %d*%d/%dbpp (%d*%d)\n", var->xres, var->yres, var->bits_per_pixel,
 640                                 var->xres_virtual, var->yres_virtual);
 641         return 0;
 642 }
 643
 644 static int matroxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
 645                               unsigned blue, unsigned transp,
 646                               struct fb_info *fb_info)
 647 {
 648         struct matrox_fb_info* minfo = container_of(fb_info, struct matrox_fb_info, fbcon);
 649
 650         DBG(__func__)
 651
 652         /*
 653          *  Set a single color register. The values supplied are
 654          *  already rounded down to the hardware's capabilities
 655          *  (according to the entries in the `var' structure). Return
 656          *  != 0 for invalid regno.
 657          */
 658
 659         if (regno >= minfo->curr.cmap_len)
 660                 return 1;
 661
 662         if (minfo->fbcon.var.grayscale) {
 663                 /* gray = 0.30*R + 0.59*G + 0.11*B */
 664                 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
 665         }
 666
 667         red = CNVT_TOHW(red, minfo->fbcon.var.red.length);
 668         green = CNVT_TOHW(green, minfo->fbcon.var.green.length);
 669         blue = CNVT_TOHW(blue, minfo->fbcon.var.blue.length);
 670         transp = CNVT_TOHW(transp, minfo->fbcon.var.transp.length);
 671
 672         switch (minfo->fbcon.var.bits_per_pixel) {
 673         case 4:
 674         case 8:
 675                 mga_outb(M_DAC_REG, regno);
 676                 mga_outb(M_DAC_VAL, red);
 677                 mga_outb(M_DAC_VAL, green);
 678                 mga_outb(M_DAC_VAL, blue);
 679                 break;
 680         case 16:
 681                 if (regno >= 16)
 682                         break;
 683                 {
 684                         u_int16_t col =
 685                                 (red << minfo->fbcon.var.red.offset)     |
 686                                 (green << minfo->fbcon.var.green.offset) |
 687                                 (blue << minfo->fbcon.var.blue.offset)   |
 688                                 (transp << minfo->fbcon.var.transp.offset); /* for 1:5:5:5 */
 689                         minfo->cmap[regno] = col | (col << 16);
 690                 }
 691                 break;
 692         case 24:
 693         case 32:
 694                 if (regno >= 16)
 695                         break;
 696                 minfo->cmap[regno] =
 697                         (red   << minfo->fbcon.var.red.offset)   |
 698                         (green << minfo->fbcon.var.green.offset) |
 699                         (blue  << minfo->fbcon.var.blue.offset)  |
 700                         (transp << minfo->fbcon.var.transp.offset);     /* 8:8:8:8 */
 701                 break;
 702         }
 703         return 0;
 704 }
 705
 706 static void matroxfb_init_fix(struct matrox_fb_info *minfo)
 707 {
 708         struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
 709         DBG(__func__)
 710
 711         strcpy(fix->id,"MATROX");
 712
 713         fix->xpanstep = 8;      /* 8 for 8bpp, 4 for 16bpp, 2 for 32bpp */
 714         fix->ypanstep = 1;
 715         fix->ywrapstep = 0;
 716         fix->mmio_start = minfo->mmio.base;
 717         fix->mmio_len = minfo->mmio.len;
 718         fix->accel = minfo->devflags.accelerator;
 719 }
 720
 721 static void matroxfb_update_fix(struct matrox_fb_info *minfo)
 722 {
 723         struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
 724         DBG(__func__)
 725
 726         mutex_lock(&minfo->fbcon.mm_lock);
 727         fix->smem_start = minfo->video.base + minfo->curr.ydstorg.bytes;
 728         fix->smem_len = minfo->video.len_usable - minfo->curr.ydstorg.bytes;
 729         mutex_unlock(&minfo->fbcon.mm_lock);
 730 }
 731
 732 static int matroxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 733 {
 734         int err;
 735         int visual;
 736         int cmap_len;
 737         unsigned int ydstorg;
 738         struct matrox_fb_info *minfo = info2minfo(info);
 739
 740         if (minfo->dead) {
 741                 return -ENXIO;
 742         }
 743         if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
 744                 return err;
 745         return 0;
 746 }
 747
 748 static int matroxfb_set_par(struct fb_info *info)
 749 {
 750         int err;
 751         int visual;
 752         int cmap_len;
 753         unsigned int ydstorg;
 754         struct fb_var_screeninfo *var;
 755         struct matrox_fb_info *minfo = info2minfo(info);
 756
 757         DBG(__func__)
 758
 759         if (minfo->dead) {
 760                 return -ENXIO;
 761         }
 762
 763         var = &info->var;
 764         if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
 765                 return err;
 766         minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase) + ydstorg;
 767         matroxfb_update_fix(minfo);
 768         minfo->fbcon.fix.visual = visual;
 769         minfo->fbcon.fix.type = FB_TYPE_PACKED_PIXELS;
 770         minfo->fbcon.fix.type_aux = 0;
 771         minfo->fbcon.fix.line_length = (var->xres_virtual * var->bits_per_pixel) >> 3;
 772         {
 773                 unsigned int pos;
 774
 775                 minfo->curr.cmap_len = cmap_len;
 776                 ydstorg += minfo->devflags.ydstorg;
 777                 minfo->curr.ydstorg.bytes = ydstorg;
 778                 minfo->curr.ydstorg.chunks = ydstorg >> (isInterleave(minfo) ? 3 : 2);
 779                 if (var->bits_per_pixel == 4)
 780                         minfo->curr.ydstorg.pixels = ydstorg;
 781                 else
 782                         minfo->curr.ydstorg.pixels = (ydstorg * 8) / var->bits_per_pixel;
 783                 minfo->curr.final_bppShift = matroxfb_get_final_bppShift(minfo, var->bits_per_pixel);
 784                 {       struct my_timming mt;
 785                         struct matrox_hw_state* hw;
 786                         int out;
 787
 788                         matroxfb_var2my(var, &mt);
 789                         mt.crtc = MATROXFB_SRC_CRTC1;
 790                         /* CRTC1 delays */
 791                         switch (var->bits_per_pixel) {
 792                                 case  0:        mt.delay = 31 + 0; break;
 793                                 case 16:        mt.delay = 21 + 8; break;
 794                                 case 24:        mt.delay = 17 + 8; break;
 795                                 case 32:        mt.delay = 16 + 8; break;
 796                                 default:        mt.delay = 31 + 8; break;
 797                         }
 798
 799                         hw = &minfo->hw;
 800
 801                         down_read(&minfo->altout.lock);
 802                         for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
 803                                 if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
 804                                     minfo->outputs[out].output->compute) {
 805                                         minfo->outputs[out].output->compute(minfo->outputs[out].data, &mt);
 806                                 }
 807                         }
 808                         up_read(&minfo->altout.lock);
 809                         minfo->crtc1.pixclock = mt.pixclock;
 810                         minfo->crtc1.mnp = mt.mnp;
 811                         minfo->hw_switch->init(minfo, &mt);
 812                         pos = (var->yoffset * var->xres_virtual + var->xoffset) * minfo->curr.final_bppShift / 32;
 813                         pos += minfo->curr.ydstorg.chunks;
 814
 815                         hw->CRTC[0x0D] = pos & 0xFF;
 816                         hw->CRTC[0x0C] = (pos & 0xFF00) >> 8;
 817                         hw->CRTCEXT[0] = (hw->CRTCEXT[0] & 0xF0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
 818                         hw->CRTCEXT[8] = pos >> 21;
 819                         minfo->hw_switch->restore(minfo);
 820                         update_crtc2(minfo, pos);
 821                         down_read(&minfo->altout.lock);
 822                         for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
 823                                 if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
 824                                     minfo->outputs[out].output->program) {
 825                                         minfo->outputs[out].output->program(minfo->outputs[out].data);
 826                                 }
 827                         }
 828                         for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
 829                                 if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
 830                                     minfo->outputs[out].output->start) {
 831                                         minfo->outputs[out].output->start(minfo->outputs[out].data);
 832                                 }
 833                         }
 834                         up_read(&minfo->altout.lock);
 835                         matrox_cfbX_init(minfo);
 836                 }
 837         }
 838         minfo->initialized = 1;
 839         return 0;
 840 }
 841
 842 static int matroxfb_get_vblank(struct matrox_fb_info *minfo,
 843                                struct fb_vblank *vblank)
 844 {
 845         unsigned int sts1;
 846
 847         matroxfb_enable_irq(minfo, 0);
 848         memset(vblank, 0, sizeof(*vblank));
 849         vblank->flags = FB_VBLANK_HAVE_VCOUNT | FB_VBLANK_HAVE_VSYNC |
 850                         FB_VBLANK_HAVE_VBLANK | FB_VBLANK_HAVE_HBLANK;
 851         sts1 = mga_inb(M_INSTS1);
 852         vblank->vcount = mga_inl(M_VCOUNT);
 853         /* BTW, on my PIII/450 with G400, reading M_INSTS1
 854            byte makes this call about 12% slower (1.70 vs. 2.05 us
 855            per ioctl()) */
 856         if (sts1 & 1)
 857                 vblank->flags |= FB_VBLANK_HBLANKING;
 858         if (sts1 & 8)
 859                 vblank->flags |= FB_VBLANK_VSYNCING;
 860         if (vblank->vcount >= minfo->fbcon.var.yres)
 861                 vblank->flags |= FB_VBLANK_VBLANKING;
 862         if (test_bit(0, &minfo->irq_flags)) {
 863                 vblank->flags |= FB_VBLANK_HAVE_COUNT;
 864                 /* Only one writer, aligned int value...
 865                    it should work without lock and without atomic_t */
 866                 vblank->count = minfo->crtc1.vsync.cnt;
 867         }
 868         return 0;
 869 }
 870
 871 static struct matrox_altout panellink_output = {
 872         .name    = "Panellink output",
 873 };
 874
 875 static int matroxfb_ioctl(struct fb_info *info,
 876                           unsigned int cmd, unsigned long arg)
 877 {
 878         void __user *argp = (void __user *)arg;
 879         struct matrox_fb_info *minfo = info2minfo(info);
 880
 881         DBG(__func__)
 882
 883         if (minfo->dead) {
 884                 return -ENXIO;
 885         }
 886
 887         switch (cmd) {
 888                 case FBIOGET_VBLANK:
 889                         {
 890                                 struct fb_vblank vblank;
 891                                 int err;
 892
 893                                 err = matroxfb_get_vblank(minfo, &vblank);
 894                                 if (err)
 895                                         return err;
 896                                 if (copy_to_user(argp, &vblank, sizeof(vblank)))
 897                                         return -EFAULT;
 898                                 return 0;
 899                         }
 900                 case FBIO_WAITFORVSYNC:
 901                         {
 902                                 u_int32_t crt;
 903
 904                                 if (get_user(crt, (u_int32_t __user *)arg))
 905                                         return -EFAULT;
 906
 907                                 return matroxfb_wait_for_sync(minfo, crt);
 908                         }
 909                 case MATROXFB_SET_OUTPUT_MODE:
 910                         {
 911                                 struct matroxioc_output_mode mom;
 912                                 struct matrox_altout *oproc;
 913                                 int val;
 914
 915                                 if (copy_from_user(&mom, argp, sizeof(mom)))
 916                                         return -EFAULT;
 917                                 if (mom.output >= MATROXFB_MAX_OUTPUTS)
 918                                         return -ENXIO;
 919                                 down_read(&minfo->altout.lock);
 920                                 oproc = minfo->outputs[mom.output].output;
 921                                 if (!oproc) {
 922                                         val = -ENXIO;
 923                                 } else if (!oproc->verifymode) {
 924                                         if (mom.mode == MATROXFB_OUTPUT_MODE_MONITOR) {
 925                                                 val = 0;
 926                                         } else {
 927                                                 val = -EINVAL;
 928                                         }
 929                                 } else {
 930                                         val = oproc->verifymode(minfo->outputs[mom.output].data, mom.mode);
 931                                 }
 932                                 if (!val) {
 933                                         if (minfo->outputs[mom.output].mode != mom.mode) {
 934                                                 minfo->outputs[mom.output].mode = mom.mode;
 935                                                 val = 1;
 936                                         }
 937                                 }
 938                                 up_read(&minfo->altout.lock);
 939                                 if (val != 1)
 940                                         return val;
 941                                 switch (minfo->outputs[mom.output].src) {
 942                                         case MATROXFB_SRC_CRTC1:
 943                                                 matroxfb_set_par(info);
 944                                                 break;
 945                                         case MATROXFB_SRC_CRTC2:
 946                                                 {
 947                                                         struct matroxfb_dh_fb_info* crtc2;
 948
 949                                                         down_read(&minfo->crtc2.lock);
 950                                                         crtc2 = minfo->crtc2.info;
 951                                                         if (crtc2)
 952                                                                 crtc2->fbcon.fbops->fb_set_par(&crtc2->fbcon);
 953                                                         up_read(&minfo->crtc2.lock);
 954                                                 }
 955                                                 break;
 956                                 }
 957                                 return 0;
 958                         }
 959                 case MATROXFB_GET_OUTPUT_MODE:
 960                         {
 961                                 struct matroxioc_output_mode mom;
 962                                 struct matrox_altout *oproc;
 963                                 int val;
 964
 965                                 if (copy_from_user(&mom, argp, sizeof(mom)))
 966                                         return -EFAULT;
 967                                 if (mom.output >= MATROXFB_MAX_OUTPUTS)
 968                                         return -ENXIO;
 969                                 down_read(&minfo->altout.lock);
 970                                 oproc = minfo->outputs[mom.output].output;
 971                                 if (!oproc) {
 972                                         val = -ENXIO;
 973                                 } else {
 974                                         mom.mode = minfo->outputs[mom.output].mode;
 975                                         val = 0;
 976                                 }
 977                                 up_read(&minfo->altout.lock);
 978                                 if (val)
 979                                         return val;
 980                                 if (copy_to_user(argp, &mom, sizeof(mom)))
 981                                         return -EFAULT;
 982                                 return 0;
 983                         }
 984                 case MATROXFB_SET_OUTPUT_CONNECTION:
 985                         {
 986                                 u_int32_t tmp;
 987                                 int i;
 988                                 int changes;
 989
 990                                 if (copy_from_user(&tmp, argp, sizeof(tmp)))
 991                                         return -EFAULT;
 992                                 for (i = 0; i < 32; i++) {
 993                                         if (tmp & (1 << i)) {
 994                                                 if (i >= MATROXFB_MAX_OUTPUTS)
 995                                                         return -ENXIO;
 996                                                 if (!minfo->outputs[i].output)
 997                                                         return -ENXIO;
 998                                                 switch (minfo->outputs[i].src) {
 999                                                         case MATROXFB_SRC_NONE:
1000                                                         case MATROXFB_SRC_CRTC1:
1001                                                                 break;
1002                                                         default:
1003                                                                 return -EBUSY;
1004                                                 }
1005                                         }
1006                                 }
1007                                 if (minfo->devflags.panellink) {
1008                                         if (tmp & MATROXFB_OUTPUT_CONN_DFP) {
1009                                                 if (tmp & MATROXFB_OUTPUT_CONN_SECONDARY)
1010                                                         return -EINVAL;
1011                                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1012                                                         if (minfo->outputs[i].src == MATROXFB_SRC_CRTC2) {
1013                                                                 return -EBUSY;
1014                                                         }
1015                                                 }
1016                                         }
1017                                 }
1018                                 changes = 0;
1019                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1020                                         if (tmp & (1 << i)) {
1021                                                 if (minfo->outputs[i].src != MATROXFB_SRC_CRTC1) {
1022                                                         changes = 1;
1023                                                         minfo->outputs[i].src = MATROXFB_SRC_CRTC1;
1024                                                 }
1025                                         } else if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1026                                                 changes = 1;
1027                                                 minfo->outputs[i].src = MATROXFB_SRC_NONE;
1028                                         }
1029                                 }
1030                                 if (!changes)
1031                                         return 0;
1032                                 matroxfb_set_par(info);
1033                                 return 0;
1034                         }
1035                 case MATROXFB_GET_OUTPUT_CONNECTION:
1036                         {
1037                                 u_int32_t conn = 0;
1038                                 int i;
1039
1040                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1041                                         if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1042                                                 conn |= 1 << i;
1043                                         }
1044                                 }
1045                                 if (put_user(conn, (u_int32_t __user *)arg))
1046                                         return -EFAULT;
1047                                 return 0;
1048                         }
1049                 case MATROXFB_GET_AVAILABLE_OUTPUTS:
1050                         {
1051                                 u_int32_t conn = 0;
1052                                 int i;
1053
1054                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1055                                         if (minfo->outputs[i].output) {
1056                                                 switch (minfo->outputs[i].src) {
1057                                                         case MATROXFB_SRC_NONE:
1058                                                         case MATROXFB_SRC_CRTC1:
1059                                                                 conn |= 1 << i;
1060                                                                 break;
1061                                                 }
1062                                         }
1063                                 }
1064                                 if (minfo->devflags.panellink) {
1065                                         if (conn & MATROXFB_OUTPUT_CONN_DFP)
1066                                                 conn &= ~MATROXFB_OUTPUT_CONN_SECONDARY;
1067                                         if (conn & MATROXFB_OUTPUT_CONN_SECONDARY)
1068                                                 conn &= ~MATROXFB_OUTPUT_CONN_DFP;
1069                                 }
1070                                 if (put_user(conn, (u_int32_t __user *)arg))
1071                                         return -EFAULT;
1072                                 return 0;
1073                         }
1074                 case MATROXFB_GET_ALL_OUTPUTS:
1075                         {
1076                                 u_int32_t conn = 0;
1077                                 int i;
1078
1079                                 for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1080                                         if (minfo->outputs[i].output) {
1081                                                 conn |= 1 << i;
1082                                         }
1083                                 }
1084                                 if (put_user(conn, (u_int32_t __user *)arg))
1085                                         return -EFAULT;
1086                                 return 0;
1087                         }
1088                 case VIDIOC_QUERYCAP:
1089                         {
1090                                 struct v4l2_capability r;
1091
1092                                 memset(&r, 0, sizeof(r));
1093                                 strcpy(r.driver, "matroxfb");
1094                                 strcpy(r.card, "Matrox");
1095                                 sprintf(r.bus_info, "PCI:%s", pci_name(minfo->pcidev));
1096                                 r.version = KERNEL_VERSION(1,0,0);
1097                                 r.capabilities = V4L2_CAP_VIDEO_OUTPUT;
1098                                 if (copy_to_user(argp, &r, sizeof(r)))
1099                                         return -EFAULT;
1100                                 return 0;
1101
1102                         }
1103                 case VIDIOC_QUERYCTRL:
1104                         {
1105                                 struct v4l2_queryctrl qctrl;
1106                                 int err;
1107
1108                                 if (copy_from_user(&qctrl, argp, sizeof(qctrl)))
1109                                         return -EFAULT;
1110
1111                                 down_read(&minfo->altout.lock);
1112                                 if (!minfo->outputs[1].output) {
1113                                         err = -ENXIO;
1114                                 } else if (minfo->outputs[1].output->getqueryctrl) {
1115                                         err = minfo->outputs[1].output->getqueryctrl(minfo->outputs[1].data, &qctrl);
1116                                 } else {
1117                                         err = -EINVAL;
1118                                 }
1119                                 up_read(&minfo->altout.lock);
1120                                 if (err >= 0 &&
1121                                     copy_to_user(argp, &qctrl, sizeof(qctrl)))
1122                                         return -EFAULT;
1123                                 return err;
1124                         }
1125                 case VIDIOC_G_CTRL:
1126                         {
1127                                 struct v4l2_control ctrl;
1128                                 int err;
1129
1130                                 if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1131                                         return -EFAULT;
1132
1133                                 down_read(&minfo->altout.lock);
1134                                 if (!minfo->outputs[1].output) {
1135                                         err = -ENXIO;
1136                                 } else if (minfo->outputs[1].output->getctrl) {
1137                                         err = minfo->outputs[1].output->getctrl(minfo->outputs[1].data, &ctrl);
1138                                 } else {
1139                                         err = -EINVAL;
1140                                 }
1141                                 up_read(&minfo->altout.lock);
1142                                 if (err >= 0 &&
1143                                     copy_to_user(argp, &ctrl, sizeof(ctrl)))
1144                                         return -EFAULT;
1145                                 return err;
1146                         }
1147                 case VIDIOC_S_CTRL:
1148                         {
1149                                 struct v4l2_control ctrl;
1150                                 int err;
1151
1152                                 if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1153                                         return -EFAULT;
1154
1155                                 down_read(&minfo->altout.lock);
1156                                 if (!minfo->outputs[1].output) {
1157                                         err = -ENXIO;
1158                                 } else if (minfo->outputs[1].output->setctrl) {
1159                                         err = minfo->outputs[1].output->setctrl(minfo->outputs[1].data, &ctrl);
1160                                 } else {
1161                                         err = -EINVAL;
1162                                 }
1163                                 up_read(&minfo->altout.lock);
1164                                 return err;
1165                         }
1166         }
1167         return -ENOTTY;
1168 }
1169
1170 /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
1171
1172 static int matroxfb_blank(int blank, struct fb_info *info)
1173 {
1174         int seq;
1175         int crtc;
1176         CRITFLAGS
1177         struct matrox_fb_info *minfo = info2minfo(info);
1178
1179         DBG(__func__)
1180
1181         if (minfo->dead)
1182                 return 1;
1183
1184         switch (blank) {
1185         case FB_BLANK_NORMAL:  seq = 0x20; crtc = 0x00; break; /* works ??? */
1186         case FB_BLANK_VSYNC_SUSPEND:  seq = 0x20; crtc = 0x10; break;
1187         case FB_BLANK_HSYNC_SUSPEND:  seq = 0x20; crtc = 0x20; break;
1188         case FB_BLANK_POWERDOWN:  seq = 0x20; crtc = 0x30; break;
1189         default: seq = 0x00; crtc = 0x00; break;
1190         }
1191
1192         CRITBEGIN
1193
1194         mga_outb(M_SEQ_INDEX, 1);
1195         mga_outb(M_SEQ_DATA, (mga_inb(M_SEQ_DATA) & ~0x20) | seq);
1196         mga_outb(M_EXTVGA_INDEX, 1);
1197         mga_outb(M_EXTVGA_DATA, (mga_inb(M_EXTVGA_DATA) & ~0x30) | crtc);
1198
1199         CRITEND
1200         return 0;
1201 }
1202
1203 static const struct fb_ops matroxfb_ops = {
1204         .owner =        THIS_MODULE,
1205         .fb_open =      matroxfb_open,
1206         .fb_release =   matroxfb_release,
1207         .fb_check_var = matroxfb_check_var,
1208         .fb_set_par =   matroxfb_set_par,
1209         .fb_setcolreg = matroxfb_setcolreg,
1210         .fb_pan_display =matroxfb_pan_display,
1211         .fb_blank =     matroxfb_blank,
1212         .fb_ioctl =     matroxfb_ioctl,
1213 /*      .fb_fillrect =  <set by matrox_cfbX_init>, */
1214 /*      .fb_copyarea =  <set by matrox_cfbX_init>, */
1215 /*      .fb_imageblit = <set by matrox_cfbX_init>, */
1216 /*      .fb_cursor =    <set by matrox_cfbX_init>, */
1217 };
1218
1219 #define RSDepth(X)      (((X) >> 8) & 0x0F)
1220 #define RS8bpp          0x1
1221 #define RS15bpp         0x2
1222 #define RS16bpp         0x3
1223 #define RS32bpp         0x4
1224 #define RS4bpp          0x5
1225 #define RS24bpp         0x6
1226 #define RSText          0x7
1227 #define RSText8         0x8
1228 /* 9-F */
1229 static struct { struct fb_bitfield red, green, blue, transp; int bits_per_pixel; } colors[] = {
1230         { {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  8 },
1231         { { 10, 5, 0}, { 5, 5, 0}, { 0, 5, 0}, { 15, 1, 0}, 16 },
1232         { { 11, 5, 0}, { 5, 6, 0}, { 0, 5, 0}, {  0, 0, 0}, 16 },
1233         { { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, { 24, 8, 0}, 32 },
1234         { {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  4 },
1235         { { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, {  0, 0, 0}, 24 },
1236         { {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },       /* textmode with (default) VGA8x16 */
1237         { {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },       /* textmode hardwired to VGA8x8 */
1238 };
1239
1240 /* initialized by setup, see explanation at end of file (search for MODULE_PARM_DESC) */
1241 static unsigned int mem;                /* "matroxfb:mem:xxxxxM" */
1242 static int option_precise_width = 1;    /* cannot be changed, option_precise_width==0 must imply noaccel */
1243 static int inv24;                       /* "matroxfb:inv24" */
1244 static int cross4MB = -1;               /* "matroxfb:cross4MB" */
1245 static int disabled;                    /* "matroxfb:disabled" */
1246 static int noaccel;                     /* "matroxfb:noaccel" */
1247 static int nopan;                       /* "matroxfb:nopan" */
1248 static int no_pci_retry;                /* "matroxfb:nopciretry" */
1249 static int novga;                       /* "matroxfb:novga" */
1250 static int nobios;                      /* "matroxfb:nobios" */
1251 static int noinit = 1;                  /* "matroxfb:init" */
1252 static int inverse;                     /* "matroxfb:inverse" */
1253 static int sgram;                       /* "matroxfb:sgram" */
1254 static int mtrr = 1;                    /* "matroxfb:nomtrr" */
1255 static int grayscale;                   /* "matroxfb:grayscale" */
1256 static int dev = -1;                    /* "matroxfb:dev:xxxxx" */
1257 static unsigned int vesa = ~0;          /* "matroxfb:vesa:xxxxx" */
1258 static int depth = -1;                  /* "matroxfb:depth:xxxxx" */
1259 static unsigned int xres;               /* "matroxfb:xres:xxxxx" */
1260 static unsigned int yres;               /* "matroxfb:yres:xxxxx" */
1261 static unsigned int upper = ~0;         /* "matroxfb:upper:xxxxx" */
1262 static unsigned int lower = ~0;         /* "matroxfb:lower:xxxxx" */
1263 static unsigned int vslen;              /* "matroxfb:vslen:xxxxx" */
1264 static unsigned int left = ~0;          /* "matroxfb:left:xxxxx" */
1265 static unsigned int right = ~0;         /* "matroxfb:right:xxxxx" */
1266 static unsigned int hslen;              /* "matroxfb:hslen:xxxxx" */
1267 static unsigned int pixclock;           /* "matroxfb:pixclock:xxxxx" */
1268 static int sync = -1;                   /* "matroxfb:sync:xxxxx" */
1269 static unsigned int fv;                 /* "matroxfb:fv:xxxxx" */
1270 static unsigned int fh;                 /* "matroxfb:fh:xxxxxk" */
1271 static unsigned int maxclk;             /* "matroxfb:maxclk:xxxxM" */
1272 static int dfp;                         /* "matroxfb:dfp */
1273 static int dfp_type = -1;               /* "matroxfb:dfp:xxx */
1274 static int memtype = -1;                /* "matroxfb:memtype:xxx" */
1275 static char outputs[8];                 /* "matroxfb:outputs:xxx" */
1276
1277 #ifndef MODULE
1278 static char videomode[64];              /* "matroxfb:mode:xxxxx" or "matroxfb:xxxxx" */
1279 #endif
1280
1281 static int matroxfb_getmemory(struct matrox_fb_info *minfo,
1282                               unsigned int maxSize, unsigned int *realSize)
1283 {
1284         vaddr_t vm;
1285         unsigned int offs;
1286         unsigned int offs2;
1287         unsigned char orig;
1288         unsigned char bytes[32];
1289         unsigned char* tmp;
1290
1291         DBG(__func__)
1292
1293         vm = minfo->video.vbase;
1294         maxSize &= ~0x1FFFFF;   /* must be X*2MB (really it must be 2 or X*4MB) */
1295         /* at least 2MB */
1296         if (maxSize < 0x0200000) return 0;
1297         if (maxSize > 0x2000000) maxSize = 0x2000000;
1298
1299         mga_outb(M_EXTVGA_INDEX, 0x03);
1300         orig = mga_inb(M_EXTVGA_DATA);
1301         mga_outb(M_EXTVGA_DATA, orig | 0x80);
1302
1303         tmp = bytes;
1304         for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1305                 *tmp++ = mga_readb(vm, offs);
1306         for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1307                 mga_writeb(vm, offs, 0x02);
1308         mga_outb(M_CACHEFLUSH, 0x00);
1309         for (offs = 0x100000; offs < maxSize; offs += 0x200000) {
1310                 if (mga_readb(vm, offs) != 0x02)
1311                         break;
1312                 mga_writeb(vm, offs, mga_readb(vm, offs) - 0x02);
1313                 if (mga_readb(vm, offs))
1314                         break;
1315         }
1316         tmp = bytes;
1317         for (offs2 = 0x100000; offs2 < maxSize; offs2 += 0x200000)
1318                 mga_writeb(vm, offs2, *tmp++);
1319
1320         mga_outb(M_EXTVGA_INDEX, 0x03);
1321         mga_outb(M_EXTVGA_DATA, orig);
1322
1323         *realSize = offs - 0x100000;
1324 #ifdef CONFIG_FB_MATROX_MILLENIUM
1325         minfo->interleave = !(!isMillenium(minfo) || ((offs - 0x100000) & 0x3FFFFF));
1326 #endif
1327         return 1;
1328 }
1329
1330 struct video_board {
1331         int maxvram;
1332         int maxdisplayable;
1333         int accelID;
1334         struct matrox_switch* lowlevel;
1335                  };
1336 #ifdef CONFIG_FB_MATROX_MILLENIUM
1337 static struct video_board vbMillennium = {
1338         .maxvram = 0x0800000,
1339         .maxdisplayable = 0x0800000,
1340         .accelID = FB_ACCEL_MATROX_MGA2064W,
1341         .lowlevel = &matrox_millennium
1342 };
1343
1344 static struct video_board vbMillennium2 = {
1345         .maxvram = 0x1000000,
1346         .maxdisplayable = 0x0800000,
1347         .accelID = FB_ACCEL_MATROX_MGA2164W,
1348         .lowlevel = &matrox_millennium
1349 };
1350
1351 static struct video_board vbMillennium2A = {
1352         .maxvram = 0x1000000,
1353         .maxdisplayable = 0x0800000,
1354         .accelID = FB_ACCEL_MATROX_MGA2164W_AGP,
1355         .lowlevel = &matrox_millennium
1356 };
1357 #endif  /* CONFIG_FB_MATROX_MILLENIUM */
1358 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1359 static struct video_board vbMystique = {
1360         .maxvram = 0x0800000,
1361         .maxdisplayable = 0x0800000,
1362         .accelID = FB_ACCEL_MATROX_MGA1064SG,
1363         .lowlevel = &matrox_mystique
1364 };
1365 #endif  /* CONFIG_FB_MATROX_MYSTIQUE */
1366 #ifdef CONFIG_FB_MATROX_G
1367 static struct video_board vbG100 = {
1368         .maxvram = 0x0800000,
1369         .maxdisplayable = 0x0800000,
1370         .accelID = FB_ACCEL_MATROX_MGAG100,
1371         .lowlevel = &matrox_G100
1372 };
1373
1374 static struct video_board vbG200 = {
1375         .maxvram = 0x1000000,
1376         .maxdisplayable = 0x1000000,
1377         .accelID = FB_ACCEL_MATROX_MGAG200,
1378         .lowlevel = &matrox_G100
1379 };
1380 static struct video_board vbG200eW = {
1381         .maxvram = 0x100000,
1382         .maxdisplayable = 0x800000,
1383         .accelID = FB_ACCEL_MATROX_MGAG200,
1384         .lowlevel = &matrox_G100
1385 };
1386 /* from doc it looks like that accelerator can draw only to low 16MB :-( Direct accesses & displaying are OK for
1387    whole 32MB */
1388 static struct video_board vbG400 = {
1389         .maxvram = 0x2000000,
1390         .maxdisplayable = 0x1000000,
1391         .accelID = FB_ACCEL_MATROX_MGAG400,
1392         .lowlevel = &matrox_G100
1393 };
1394 #endif
1395
1396 #define DEVF_VIDEO64BIT         0x0001
1397 #define DEVF_SWAPS              0x0002
1398 #define DEVF_SRCORG             0x0004
1399 #define DEVF_DUALHEAD           0x0008
1400 #define DEVF_CROSS4MB           0x0010
1401 #define DEVF_TEXT4B             0x0020
1402 /* #define DEVF_recycled        0x0040  */
1403 /* #define DEVF_recycled        0x0080  */
1404 #define DEVF_SUPPORT32MB        0x0100
1405 #define DEVF_ANY_VXRES          0x0200
1406 #define DEVF_TEXT16B            0x0400
1407 #define DEVF_CRTC2              0x0800
1408 #define DEVF_MAVEN_CAPABLE      0x1000
1409 #define DEVF_PANELLINK_CAPABLE  0x2000
1410 #define DEVF_G450DAC            0x4000
1411
1412 #define DEVF_GCORE      (DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB)
1413 #define DEVF_G2CORE     (DEVF_GCORE | DEVF_ANY_VXRES | DEVF_MAVEN_CAPABLE | DEVF_PANELLINK_CAPABLE | DEVF_SRCORG | DEVF_DUALHEAD)
1414 #define DEVF_G100       (DEVF_GCORE) /* no doc, no vxres... */
1415 #define DEVF_G200       (DEVF_G2CORE)
1416 #define DEVF_G400       (DEVF_G2CORE | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2)
1417 /* if you'll find how to drive DFP... */
1418 #define DEVF_G450       (DEVF_GCORE | DEVF_ANY_VXRES | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2 | DEVF_G450DAC | DEVF_SRCORG | DEVF_DUALHEAD)
1419 #define DEVF_G550       (DEVF_G450)
1420
1421 static struct board {
1422         unsigned short vendor, device, rev, svid, sid;
1423         unsigned int flags;
1424         unsigned int maxclk;
1425         enum mga_chip chip;
1426         struct video_board* base;
1427         const char* name;
1428                 } dev_list[] = {
1429 #ifdef CONFIG_FB_MATROX_MILLENIUM
1430         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL,       0xFF,
1431                 0,                      0,
1432                 DEVF_TEXT4B,
1433                 230000,
1434                 MGA_2064,
1435                 &vbMillennium,
1436                 "Millennium (PCI)"},
1437         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2,     0xFF,
1438                 0,                      0,
1439                 DEVF_SWAPS,
1440                 220000,
1441                 MGA_2164,
1442                 &vbMillennium2,
1443                 "Millennium II (PCI)"},
1444         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2_AGP, 0xFF,
1445                 0,                      0,
1446                 DEVF_SWAPS,
1447                 250000,
1448                 MGA_2164,
1449                 &vbMillennium2A,
1450                 "Millennium II (AGP)"},
1451 #endif
1452 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1453         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS,       0x02,
1454                 0,                      0,
1455                 DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1456                 180000,
1457                 MGA_1064,
1458                 &vbMystique,
1459                 "Mystique (PCI)"},
1460         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS,       0xFF,
1461                 0,                      0,
1462                 DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1463                 220000,
1464                 MGA_1164,
1465                 &vbMystique,
1466                 "Mystique 220 (PCI)"},
1467         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS_AGP,   0x02,
1468                 0,                      0,
1469                 DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1470                 180000,
1471                 MGA_1064,
1472                 &vbMystique,
1473                 "Mystique (AGP)"},
1474         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS_AGP,   0xFF,
1475                 0,                      0,
1476                 DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1477                 220000,
1478                 MGA_1164,
1479                 &vbMystique,
1480                 "Mystique 220 (AGP)"},
1481 #endif
1482 #ifdef CONFIG_FB_MATROX_G
1483         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_MM,   0xFF,
1484                 0,                      0,
1485                 DEVF_G100,
1486                 230000,
1487                 MGA_G100,
1488                 &vbG100,
1489                 "MGA-G100 (PCI)"},
1490         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_AGP,  0xFF,
1491                 0,                      0,
1492                 DEVF_G100,
1493                 230000,
1494                 MGA_G100,
1495                 &vbG100,
1496                 "MGA-G100 (AGP)"},
1497         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_PCI,  0xFF,
1498                 0,                      0,
1499                 DEVF_G200,
1500                 250000,
1501                 MGA_G200,
1502                 &vbG200,
1503                 "MGA-G200 (PCI)"},
1504         {PCI_VENDOR_ID_MATROX,  0x0532, 0xFF,
1505                 0,                      0,
1506                 DEVF_G200,
1507                 250000,
1508                 MGA_G200,
1509                 &vbG200eW,
1510                 "MGA-G200eW (PCI)"},
1511         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1512                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_GENERIC,
1513                 DEVF_G200,
1514                 220000,
1515                 MGA_G200,
1516                 &vbG200,
1517                 "MGA-G200 (AGP)"},
1518         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1519                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP,
1520                 DEVF_G200,
1521                 230000,
1522                 MGA_G200,
1523                 &vbG200,
1524                 "Mystique G200 (AGP)"},
1525         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1526                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MILLENIUM_G200_AGP,
1527                 DEVF_G200,
1528                 250000,
1529                 MGA_G200,
1530                 &vbG200,
1531                 "Millennium G200 (AGP)"},
1532         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1533                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MARVEL_G200_AGP,
1534                 DEVF_G200,
1535                 230000,
1536                 MGA_G200,
1537                 &vbG200,
1538                 "Marvel G200 (AGP)"},
1539         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1540                 PCI_SS_VENDOR_ID_SIEMENS_NIXDORF,       PCI_SS_ID_SIEMENS_MGA_G200_AGP,
1541                 DEVF_G200,
1542                 230000,
1543                 MGA_G200,
1544                 &vbG200,
1545                 "MGA-G200 (AGP)"},
1546         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,  0xFF,
1547                 0,                      0,
1548                 DEVF_G200,
1549                 230000,
1550                 MGA_G200,
1551                 &vbG200,
1552                 "G200 (AGP)"},
1553         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,      0x80,
1554                 PCI_SS_VENDOR_ID_MATROX,        PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP,
1555                 DEVF_G400,
1556                 360000,
1557                 MGA_G400,
1558                 &vbG400,
1559                 "Millennium G400 MAX (AGP)"},
1560         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,      0x80,
1561                 0,                      0,
1562                 DEVF_G400,
1563                 300000,
1564                 MGA_G400,
1565                 &vbG400,
1566                 "G400 (AGP)"},
1567         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,      0xFF,
1568                 0,                      0,
1569                 DEVF_G450,
1570                 360000,
1571                 MGA_G450,
1572                 &vbG400,
1573                 "G450"},
1574         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G550,      0xFF,
1575                 0,                      0,
1576                 DEVF_G550,
1577                 360000,
1578                 MGA_G550,
1579                 &vbG400,
1580                 "G550"},
1581 #endif
1582         {0,                     0,                              0xFF,
1583                 0,                      0,
1584                 0,
1585                 0,
1586                 0,
1587                 NULL,
1588                 NULL}};
1589
1590 #ifndef MODULE
1591 static const struct fb_videomode defaultmode = {
1592         /* 640x480 @ 60Hz, 31.5 kHz */
1593         NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
1594         0, FB_VMODE_NONINTERLACED
1595 };
1596
1597 static int hotplug = 0;
1598 #endif /* !MODULE */
1599
1600 static void setDefaultOutputs(struct matrox_fb_info *minfo)
1601 {
1602         unsigned int i;
1603         const char* ptr;
1604
1605         minfo->outputs[0].default_src = MATROXFB_SRC_CRTC1;
1606         if (minfo->devflags.g450dac) {
1607                 minfo->outputs[1].default_src = MATROXFB_SRC_CRTC1;
1608                 minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1609         } else if (dfp) {
1610                 minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1611         }
1612         ptr = outputs;
1613         for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1614                 char c = *ptr++;
1615
1616                 if (c == 0) {
1617                         break;
1618                 }
1619                 if (c == '0') {
1620                         minfo->outputs[i].default_src = MATROXFB_SRC_NONE;
1621                 } else if (c == '1') {
1622                         minfo->outputs[i].default_src = MATROXFB_SRC_CRTC1;
1623                 } else if (c == '2' && minfo->devflags.crtc2) {
1624                         minfo->outputs[i].default_src = MATROXFB_SRC_CRTC2;
1625                 } else {
1626                         printk(KERN_ERR "matroxfb: Unknown outputs setting\n");
1627                         break;
1628                 }
1629         }
1630         /* Nullify this option for subsequent adapters */
1631         outputs[0] = 0;
1632 }
1633
1634 static int initMatrox2(struct matrox_fb_info *minfo, struct board *b)
1635 {
1636         unsigned long ctrlptr_phys = 0;
1637         unsigned long video_base_phys = 0;
1638         unsigned int memsize;
1639         int err;
1640
1641         static const struct pci_device_id intel_82437[] = {
1642                 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437) },
1643                 { },
1644         };
1645
1646         DBG(__func__)
1647
1648         /* set default values... */
1649         vesafb_defined.accel_flags = FB_ACCELF_TEXT;
1650
1651         minfo->hw_switch = b->base->lowlevel;
1652         minfo->devflags.accelerator = b->base->accelID;
1653         minfo->max_pixel_clock = b->maxclk;
1654
1655         printk(KERN_INFO "matroxfb: Matrox %s detected\n", b->name);
1656         minfo->capable.plnwt = 1;
1657         minfo->chip = b->chip;
1658         minfo->capable.srcorg = b->flags & DEVF_SRCORG;
1659         minfo->devflags.video64bits = b->flags & DEVF_VIDEO64BIT;
1660         if (b->flags & DEVF_TEXT4B) {
1661                 minfo->devflags.vgastep = 4;
1662                 minfo->devflags.textmode = 4;
1663                 minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1664         } else if (b->flags & DEVF_TEXT16B) {
1665                 minfo->devflags.vgastep = 16;
1666                 minfo->devflags.textmode = 1;
1667                 minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1668         } else {
1669                 minfo->devflags.vgastep = 8;
1670                 minfo->devflags.textmode = 1;
1671                 minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP8;
1672         }
1673         minfo->devflags.support32MB = (b->flags & DEVF_SUPPORT32MB) != 0;
1674         minfo->devflags.precise_width = !(b->flags & DEVF_ANY_VXRES);
1675         minfo->devflags.crtc2 = (b->flags & DEVF_CRTC2) != 0;
1676         minfo->devflags.maven_capable = (b->flags & DEVF_MAVEN_CAPABLE) != 0;
1677         minfo->devflags.dualhead = (b->flags & DEVF_DUALHEAD) != 0;
1678         minfo->devflags.dfp_type = dfp_type;
1679         minfo->devflags.g450dac = (b->flags & DEVF_G450DAC) != 0;
1680         minfo->devflags.textstep = minfo->devflags.vgastep * minfo->devflags.textmode;
1681         minfo->devflags.textvram = 65536 / minfo->devflags.textmode;
1682         setDefaultOutputs(minfo);
1683         if (b->flags & DEVF_PANELLINK_CAPABLE) {
1684                 minfo->outputs[2].data = minfo;
1685                 minfo->outputs[2].output = &panellink_output;
1686                 minfo->outputs[2].src = minfo->outputs[2].default_src;
1687                 minfo->outputs[2].mode = MATROXFB_OUTPUT_MODE_MONITOR;
1688                 minfo->devflags.panellink = 1;
1689         }
1690
1691         if (minfo->capable.cross4MB < 0)
1692                 minfo->capable.cross4MB = b->flags & DEVF_CROSS4MB;
1693         if (b->flags & DEVF_SWAPS) {
1694                 ctrlptr_phys = pci_resource_start(minfo->pcidev, 1);
1695                 video_base_phys = pci_resource_start(minfo->pcidev, 0);
1696                 minfo->devflags.fbResource = PCI_BASE_ADDRESS_0;
1697         } else {
1698                 ctrlptr_phys = pci_resource_start(minfo->pcidev, 0);
1699                 video_base_phys = pci_resource_start(minfo->pcidev, 1);
1700                 minfo->devflags.fbResource = PCI_BASE_ADDRESS_1;
1701         }
1702         err = -EINVAL;
1703         if (!ctrlptr_phys) {
1704                 printk(KERN_ERR "matroxfb: control registers are not available, matroxfb disabled\n");
1705                 goto fail;
1706         }
1707         if (!video_base_phys) {
1708                 printk(KERN_ERR "matroxfb: video RAM is not available in PCI address space, matroxfb disabled\n");
1709                 goto fail;
1710         }
1711         memsize = b->base->maxvram;
1712         if (!request_mem_region(ctrlptr_phys, 16384, "matroxfb MMIO")) {
1713                 goto fail;
1714         }
1715         if (!request_mem_region(video_base_phys, memsize, "matroxfb FB")) {
1716                 goto failCtrlMR;
1717         }
1718         minfo->video.len_maximum = memsize;
1719         /* convert mem (autodetect k, M) */
1720         if (mem < 1024) mem *= 1024;
1721         if (mem < 0x00100000) mem *= 1024;
1722
1723         if (mem && (mem < memsize))
1724                 memsize = mem;
1725         err = -ENOMEM;
1726
1727         minfo->mmio.vbase.vaddr = ioremap(ctrlptr_phys, 16384);
1728         if (!minfo->mmio.vbase.vaddr) {
1729                 printk(KERN_ERR "matroxfb: cannot ioremap(%lX, 16384), matroxfb disabled\n", ctrlptr_phys);
1730                 goto failVideoMR;
1731         }
1732         minfo->mmio.base = ctrlptr_phys;
1733         minfo->mmio.len = 16384;
1734         minfo->video.base = video_base_phys;
1735         minfo->video.vbase.vaddr = ioremap_wc(video_base_phys, memsize);
1736         if (!minfo->video.vbase.vaddr) {
1737                 printk(KERN_ERR "matroxfb: cannot ioremap(%lX, %d), matroxfb disabled\n",
1738                         video_base_phys, memsize);
1739                 goto failCtrlIO;
1740         }
1741         {
1742                 u_int32_t cmd;
1743                 u_int32_t mga_option;
1744
1745                 pci_read_config_dword(minfo->pcidev, PCI_OPTION_REG, &mga_option);
1746                 pci_read_config_dword(minfo->pcidev, PCI_COMMAND, &cmd);
1747                 mga_option &= 0x7FFFFFFF; /* clear BIG_ENDIAN */
1748                 mga_option |= MX_OPTION_BSWAP;
1749                 /* disable palette snooping */
1750                 cmd &= ~PCI_COMMAND_VGA_PALETTE;
1751                 if (pci_dev_present(intel_82437)) {
1752                         if (!(mga_option & 0x20000000) && !minfo->devflags.nopciretry) {
1753                                 printk(KERN_WARNING "matroxfb: Disabling PCI retries due to i82437 present\n");
1754                         }
1755                         mga_option |= 0x20000000;
1756                         minfo->devflags.nopciretry = 1;
1757                 }
1758                 pci_write_config_dword(minfo->pcidev, PCI_COMMAND, cmd);
1759                 pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, mga_option);
1760                 minfo->hw.MXoptionReg = mga_option;
1761
1762                 /* select non-DMA memory for PCI_MGA_DATA, otherwise dump of PCI cfg space can lock PCI bus */
1763                 /* maybe preinit() candidate, but it is same... for all devices... at this time... */
1764                 pci_write_config_dword(minfo->pcidev, PCI_MGA_INDEX, 0x00003C00);
1765         }
1766
1767         err = -ENXIO;
1768         matroxfb_read_pins(minfo);
1769         if (minfo->hw_switch->preinit(minfo)) {
1770                 goto failVideoIO;
1771         }
1772
1773         err = -ENOMEM;
1774         if (!matroxfb_getmemory(minfo, memsize, &minfo->video.len) || !minfo->video.len) {
1775                 printk(KERN_ERR "matroxfb: cannot determine memory size\n");
1776                 goto failVideoIO;
1777         }
1778         minfo->devflags.ydstorg = 0;
1779
1780         minfo->video.base = video_base_phys;
1781         minfo->video.len_usable = minfo->video.len;
1782         if (minfo->video.len_usable > b->base->maxdisplayable)
1783                 minfo->video.len_usable = b->base->maxdisplayable;
1784         if (mtrr)
1785                 minfo->wc_cookie = arch_phys_wc_add(video_base_phys,
1786                                                     minfo->video.len);
1787
1788         if (!minfo->devflags.novga)
1789                 request_region(0x3C0, 32, "matrox");
1790         matroxfb_g450_connect(minfo);
1791         minfo->hw_switch->reset(minfo);
1792
1793         minfo->fbcon.monspecs.hfmin = 0;
1794         minfo->fbcon.monspecs.hfmax = fh;
1795         minfo->fbcon.monspecs.vfmin = 0;
1796         minfo->fbcon.monspecs.vfmax = fv;
1797         minfo->fbcon.monspecs.dpms = 0; /* TBD */
1798
1799         /* static settings */
1800         vesafb_defined.red = colors[depth-1].red;
1801         vesafb_defined.green = colors[depth-1].green;
1802         vesafb_defined.blue = colors[depth-1].blue;
1803         vesafb_defined.bits_per_pixel = colors[depth-1].bits_per_pixel;
1804         vesafb_defined.grayscale = grayscale;
1805         vesafb_defined.vmode = 0;
1806         if (noaccel)
1807                 vesafb_defined.accel_flags &= ~FB_ACCELF_TEXT;
1808
1809         minfo->fbops = matroxfb_ops;
1810         minfo->fbcon.fbops = &minfo->fbops;
1811         minfo->fbcon.pseudo_palette = minfo->cmap;
1812         minfo->fbcon.flags = FBINFO_PARTIAL_PAN_OK |     /* Prefer panning for scroll under MC viewer/edit */
1813                                       FBINFO_HWACCEL_COPYAREA |  /* We have hw-assisted bmove */
1814                                       FBINFO_HWACCEL_FILLRECT |  /* And fillrect */
1815                                       FBINFO_HWACCEL_IMAGEBLIT | /* And imageblit */
1816                                       FBINFO_HWACCEL_XPAN |      /* And we support both horizontal */
1817                                       FBINFO_HWACCEL_YPAN |      /* And vertical panning */
1818                                       FBINFO_READS_FAST;
1819         minfo->video.len_usable &= PAGE_MASK;
1820         fb_alloc_cmap(&minfo->fbcon.cmap, 256, 1);
1821
1822 #ifndef MODULE
1823         /* mode database is marked __init!!! */
1824         if (!hotplug) {
1825                 fb_find_mode(&vesafb_defined, &minfo->fbcon, videomode[0] ? videomode : NULL,
1826                         NULL, 0, &defaultmode, vesafb_defined.bits_per_pixel);
1827         }
1828 #endif /* !MODULE */
1829
1830         /* mode modifiers */
1831         if (hslen)
1832                 vesafb_defined.hsync_len = hslen;
1833         if (vslen)
1834                 vesafb_defined.vsync_len = vslen;
1835         if (left != ~0)
1836                 vesafb_defined.left_margin = left;
1837         if (right != ~0)
1838                 vesafb_defined.right_margin = right;
1839         if (upper != ~0)
1840                 vesafb_defined.upper_margin = upper;
1841         if (lower != ~0)
1842                 vesafb_defined.lower_margin = lower;
1843         if (xres)
1844                 vesafb_defined.xres = xres;
1845         if (yres)
1846                 vesafb_defined.yres = yres;
1847         if (sync != -1)
1848                 vesafb_defined.sync = sync;
1849         else if (vesafb_defined.sync == ~0) {
1850                 vesafb_defined.sync = 0;
1851                 if (yres < 400)
1852                         vesafb_defined.sync |= FB_SYNC_HOR_HIGH_ACT;
1853                 else if (yres < 480)
1854                         vesafb_defined.sync |= FB_SYNC_VERT_HIGH_ACT;
1855         }
1856
1857         /* fv, fh, maxclk limits was specified */
1858         {
1859                 unsigned int tmp;
1860
1861                 if (fv) {
1862                         tmp = fv * (vesafb_defined.upper_margin + vesafb_defined.yres
1863                                   + vesafb_defined.lower_margin + vesafb_defined.vsync_len);
1864                         if ((tmp < fh) || (fh == 0)) fh = tmp;
1865                 }
1866                 if (fh) {
1867                         tmp = fh * (vesafb_defined.left_margin + vesafb_defined.xres
1868                                   + vesafb_defined.right_margin + vesafb_defined.hsync_len);
1869                         if ((tmp < maxclk) || (maxclk == 0)) maxclk = tmp;
1870                 }
1871                 tmp = (maxclk + 499) / 500;
1872                 if (tmp) {
1873                         tmp = (2000000000 + tmp) / tmp;
1874                         if (tmp > pixclock) pixclock = tmp;
1875                 }
1876         }
1877         if (pixclock) {
1878                 if (pixclock < 2000)            /* > 500MHz */
1879                         pixclock = 4000;        /* 250MHz */
1880                 if (pixclock > 1000000)
1881                         pixclock = 1000000;     /* 1MHz */
1882                 vesafb_defined.pixclock = pixclock;
1883         }
1884
1885         /* FIXME: Where to move this?! */
1886 #if defined(CONFIG_PPC_PMAC)
1887 #ifndef MODULE
1888         if (machine_is(powermac)) {
1889                 struct fb_var_screeninfo var;
1890
1891                 if (default_vmode <= 0 || default_vmode > VMODE_MAX)
1892                         default_vmode = VMODE_640_480_60;
1893 #if defined(CONFIG_PPC32)
1894                 if (IS_REACHABLE(CONFIG_NVRAM) && default_cmode == CMODE_NVRAM)
1895                         default_cmode = nvram_read_byte(NV_CMODE);
1896 #endif
1897                 if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
1898                         default_cmode = CMODE_8;
1899                 if (!mac_vmode_to_var(default_vmode, default_cmode, &var)) {
1900                         var.accel_flags = vesafb_defined.accel_flags;
1901                         var.xoffset = var.yoffset = 0;
1902                         /* Note: mac_vmode_to_var() does not set all parameters */
1903                         vesafb_defined = var;
1904                 }
1905         }
1906 #endif /* !MODULE */
1907 #endif /* CONFIG_PPC_PMAC */
1908         vesafb_defined.xres_virtual = vesafb_defined.xres;
1909         if (nopan) {
1910                 vesafb_defined.yres_virtual = vesafb_defined.yres;
1911         } else {
1912                 vesafb_defined.yres_virtual = 65536; /* large enough to be INF, but small enough
1913                                                         to yres_virtual * xres_virtual < 2^32 */
1914         }
1915         matroxfb_init_fix(minfo);
1916         minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase);
1917         /* Normalize values (namely yres_virtual) */
1918         matroxfb_check_var(&vesafb_defined, &minfo->fbcon);
1919         /* And put it into "current" var. Do NOT program hardware yet, or we'll not take over
1920          * vgacon correctly. fbcon_startup will call fb_set_par for us, WITHOUT check_var,
1921          * and unfortunately it will do it BEFORE vgacon contents is saved, so it won't work
1922          * anyway. But we at least tried... */
1923         minfo->fbcon.var = vesafb_defined;
1924         err = -EINVAL;
1925
1926         printk(KERN_INFO "matroxfb: %dx%dx%dbpp (virtual: %dx%d)\n",
1927                 vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel,
1928                 vesafb_defined.xres_virtual, vesafb_defined.yres_virtual);
1929         printk(KERN_INFO "matroxfb: framebuffer at 0x%lX, mapped to 0x%p, size %d\n",
1930                 minfo->video.base, vaddr_va(minfo->video.vbase), minfo->video.len);
1931
1932 /* We do not have to set currcon to 0... register_framebuffer do it for us on first console
1933  * and we do not want currcon == 0 for subsequent framebuffers */
1934
1935         minfo->fbcon.device = &minfo->pcidev->dev;
1936         if (register_framebuffer(&minfo->fbcon) < 0) {
1937                 goto failVideoIO;
1938         }
1939         fb_info(&minfo->fbcon, "%s frame buffer device\n", minfo->fbcon.fix.id);
1940
1941         /* there is no console on this fb... but we have to initialize hardware
1942          * until someone tells me what is proper thing to do */
1943         if (!minfo->initialized) {
1944                 fb_info(&minfo->fbcon, "initializing hardware\n");
1945                 /* We have to use FB_ACTIVATE_FORCE, as we had to put vesafb_defined to the fbcon.var
1946                  * already before, so register_framebuffer works correctly. */
1947                 vesafb_defined.activate |= FB_ACTIVATE_FORCE;
1948                 fb_set_var(&minfo->fbcon, &vesafb_defined);
1949         }
1950
1951         return 0;
1952 failVideoIO:;
1953         matroxfb_g450_shutdown(minfo);
1954         iounmap(minfo->video.vbase.vaddr);
1955 failCtrlIO:;
1956         iounmap(minfo->mmio.vbase.vaddr);
1957 failVideoMR:;
1958         release_mem_region(video_base_phys, minfo->video.len_maximum);
1959 failCtrlMR:;
1960         release_mem_region(ctrlptr_phys, 16384);
1961 fail:;
1962         return err;
1963 }
1964
1965 static LIST_HEAD(matroxfb_list);
1966 static LIST_HEAD(matroxfb_driver_list);
1967
1968 #define matroxfb_l(x) list_entry(x, struct matrox_fb_info, next_fb)
1969 #define matroxfb_driver_l(x) list_entry(x, struct matroxfb_driver, node)
1970 int matroxfb_register_driver(struct matroxfb_driver* drv) {
1971         struct matrox_fb_info* minfo;
1972
1973         list_add(&drv->node, &matroxfb_driver_list);
1974         list_for_each_entry(minfo, &matroxfb_list, next_fb) {
1975                 void* p;
1976
1977                 if (minfo->drivers_count == MATROXFB_MAX_FB_DRIVERS)
1978                         continue;
1979                 p = drv->probe(minfo);
1980                 if (p) {
1981                         minfo->drivers_data[minfo->drivers_count] = p;
1982                         minfo->drivers[minfo->drivers_count++] = drv;
1983                 }
1984         }
1985         return 0;
1986 }
1987
1988 void matroxfb_unregister_driver(struct matroxfb_driver* drv) {
1989         struct matrox_fb_info* minfo;
1990
1991         list_del(&drv->node);
1992         list_for_each_entry(minfo, &matroxfb_list, next_fb) {
1993                 int i;
1994
1995                 for (i = 0; i < minfo->drivers_count; ) {
1996                         if (minfo->drivers[i] == drv) {
1997                                 if (drv && drv->remove)
1998                                         drv->remove(minfo, minfo->drivers_data[i]);
1999                                 minfo->drivers[i] = minfo->drivers[--minfo->drivers_count];
2000                                 minfo->drivers_data[i] = minfo->drivers_data[minfo->drivers_count];
2001                         } else
2002                                 i++;
2003                 }
2004         }
2005 }
2006
2007 static void matroxfb_register_device(struct matrox_fb_info* minfo) {
2008         struct matroxfb_driver* drv;
2009         int i = 0;
2010         list_add(&minfo->next_fb, &matroxfb_list);
2011         for (drv = matroxfb_driver_l(matroxfb_driver_list.next);
2012              drv != matroxfb_driver_l(&matroxfb_driver_list);
2013              drv = matroxfb_driver_l(drv->node.next)) {
2014                 if (drv->probe) {
2015                         void *p = drv->probe(minfo);
2016                         if (p) {
2017                                 minfo->drivers_data[i] = p;
2018                                 minfo->drivers[i++] = drv;
2019                                 if (i == MATROXFB_MAX_FB_DRIVERS)
2020                                         break;
2021                         }
2022                 }
2023         }
2024         minfo->drivers_count = i;
2025 }
2026
2027 static void matroxfb_unregister_device(struct matrox_fb_info* minfo) {
2028         int i;
2029
2030         list_del(&minfo->next_fb);
2031         for (i = 0; i < minfo->drivers_count; i++) {
2032                 struct matroxfb_driver* drv = minfo->drivers[i];
2033
2034                 if (drv && drv->remove)
2035                         drv->remove(minfo, minfo->drivers_data[i]);
2036         }
2037 }
2038
2039 static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dummy) {
2040         struct board* b;
2041         u_int16_t svid;
2042         u_int16_t sid;
2043         struct matrox_fb_info* minfo;
2044         int err;
2045         u_int32_t cmd;
2046         DBG(__func__)
2047
2048         err = aperture_remove_conflicting_pci_devices(pdev, "matroxfb");
2049         if (err)
2050                 return err;
2051
2052         svid = pdev->subsystem_vendor;
2053         sid = pdev->subsystem_device;
2054         for (b = dev_list; b->vendor; b++) {
2055                 if ((b->vendor != pdev->vendor) || (b->device != pdev->device) || (b->rev < pdev->revision)) continue;
2056                 if (b->svid)
2057                         if ((b->svid != svid) || (b->sid != sid)) continue;
2058                 break;
2059         }
2060         /* not match... */
2061         if (!b->vendor)
2062                 return -ENODEV;
2063         if (dev > 0) {
2064                 /* not requested one... */
2065                 dev--;
2066                 return -ENODEV;
2067         }
2068         pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
2069         if (pci_enable_device(pdev)) {
2070                 return -1;
2071         }
2072
2073         minfo = kzalloc(sizeof(*minfo), GFP_KERNEL);
2074         if (!minfo)
2075                 return -ENOMEM;
2076
2077         minfo->pcidev = pdev;
2078         minfo->dead = 0;
2079         minfo->usecount = 0;
2080         minfo->userusecount = 0;
2081
2082         pci_set_drvdata(pdev, minfo);
2083         /* DEVFLAGS */
2084         minfo->devflags.memtype = memtype;
2085         if (memtype != -1)
2086                 noinit = 0;
2087         if (cmd & PCI_COMMAND_MEMORY) {
2088                 minfo->devflags.novga = novga;
2089                 minfo->devflags.nobios = nobios;
2090                 minfo->devflags.noinit = noinit;
2091                 /* subsequent heads always needs initialization and must not enable BIOS */
2092                 novga = 1;
2093                 nobios = 1;
2094                 noinit = 0;
2095         } else {
2096                 minfo->devflags.novga = 1;
2097                 minfo->devflags.nobios = 1;
2098                 minfo->devflags.noinit = 0;
2099         }
2100
2101         minfo->devflags.nopciretry = no_pci_retry;
2102         minfo->devflags.mga_24bpp_fix = inv24;
2103         minfo->devflags.precise_width = option_precise_width;
2104         minfo->devflags.sgram = sgram;
2105         minfo->capable.cross4MB = cross4MB;
2106
2107         spin_lock_init(&minfo->lock.DAC);
2108         spin_lock_init(&minfo->lock.accel);
2109         init_rwsem(&minfo->crtc2.lock);
2110         init_rwsem(&minfo->altout.lock);
2111         mutex_init(&minfo->fbcon.mm_lock);
2112         minfo->irq_flags = 0;
2113         init_waitqueue_head(&minfo->crtc1.vsync.wait);
2114         init_waitqueue_head(&minfo->crtc2.vsync.wait);
2115         minfo->crtc1.panpos = -1;
2116
2117         err = initMatrox2(minfo, b);
2118         if (!err) {
2119                 matroxfb_register_device(minfo);
2120                 return 0;
2121         }
2122         kfree(minfo);
2123         return -1;
2124 }
2125
2126 static void pci_remove_matrox(struct pci_dev* pdev) {
2127         struct matrox_fb_info* minfo;
2128
2129         minfo = pci_get_drvdata(pdev);
2130         matroxfb_remove(minfo, 1);
2131 }
2132
2133 static const struct pci_device_id matroxfb_devices[] = {
2134 #ifdef CONFIG_FB_MATROX_MILLENIUM
2135         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL,
2136                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2137         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2,
2138                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2139         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MIL_2_AGP,
2140                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2141 #endif
2142 #ifdef CONFIG_FB_MATROX_MYSTIQUE
2143         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_MYS,
2144                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2145 #endif
2146 #ifdef CONFIG_FB_MATROX_G
2147         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_MM,
2148                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2149         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G100_AGP,
2150                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2151         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_PCI,
2152                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2153         {PCI_VENDOR_ID_MATROX,  0x0532,
2154                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2155         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G200_AGP,
2156                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2157         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G400,
2158                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2159         {PCI_VENDOR_ID_MATROX,  PCI_DEVICE_ID_MATROX_G550,
2160                 PCI_ANY_ID,     PCI_ANY_ID,     0, 0, 0},
2161 #endif
2162         {0,                     0,
2163                 0,              0,              0, 0, 0}
2164 };
2165
2166 MODULE_DEVICE_TABLE(pci, matroxfb_devices);
2167
2168
2169 static struct pci_driver matroxfb_driver = {
2170         .name =         "matroxfb",
2171         .id_table =     matroxfb_devices,
2172         .probe =        matroxfb_probe,
2173         .remove =       pci_remove_matrox,
2174 };
2175
2176 /* **************************** init-time only **************************** */
2177
2178 #define RSResolution(X) ((X) & 0x0F)
2179 #define RS640x400       1
2180 #define RS640x480       2
2181 #define RS800x600       3
2182 #define RS1024x768      4
2183 #define RS1280x1024     5
2184 #define RS1600x1200     6
2185 #define RS768x576       7
2186 #define RS960x720       8
2187 #define RS1152x864      9
2188 #define RS1408x1056     10
2189 #define RS640x350       11
2190 #define RS1056x344      12      /* 132 x 43 text */
2191 #define RS1056x400      13      /* 132 x 50 text */
2192 #define RS1056x480      14      /* 132 x 60 text */
2193 #define RSNoxNo         15
2194 /* 10-FF */
2195 static struct { int xres, yres, left, right, upper, lower, hslen, vslen, vfreq; } timmings[] __initdata = {
2196         {  640,  400,  48, 16, 39,  8,  96, 2, 70 },
2197         {  640,  480,  48, 16, 33, 10,  96, 2, 60 },
2198         {  800,  600, 144, 24, 28,  8, 112, 6, 60 },
2199         { 1024,  768, 160, 32, 30,  4, 128, 4, 60 },
2200         { 1280, 1024, 224, 32, 32,  4, 136, 4, 60 },
2201         { 1600, 1200, 272, 48, 32,  5, 152, 5, 60 },
2202         {  768,  576, 144, 16, 28,  6, 112, 4, 60 },
2203         {  960,  720, 144, 24, 28,  8, 112, 4, 60 },
2204         { 1152,  864, 192, 32, 30,  4, 128, 4, 60 },
2205         { 1408, 1056, 256, 40, 32,  5, 144, 5, 60 },
2206         {  640,  350,  48, 16, 39,  8,  96, 2, 70 },
2207         { 1056,  344,  96, 24, 59, 44, 160, 2, 70 },
2208         { 1056,  400,  96, 24, 39,  8, 160, 2, 70 },
2209         { 1056,  480,  96, 24, 36, 12, 160, 3, 60 },
2210         {    0,    0,  ~0, ~0, ~0, ~0,   0, 0,  0 }
2211 };
2212
2213 #define RSCreate(X,Y)   ((X) | ((Y) << 8))
2214 static struct { unsigned int vesa; unsigned int info; } *RSptr, vesamap[] __initdata = {
2215 /* default must be first */
2216         {    ~0, RSCreate(RSNoxNo,     RS8bpp ) },
2217         { 0x101, RSCreate(RS640x480,   RS8bpp ) },
2218         { 0x100, RSCreate(RS640x400,   RS8bpp ) },
2219         { 0x180, RSCreate(RS768x576,   RS8bpp ) },
2220         { 0x103, RSCreate(RS800x600,   RS8bpp ) },
2221         { 0x188, RSCreate(RS960x720,   RS8bpp ) },
2222         { 0x105, RSCreate(RS1024x768,  RS8bpp ) },
2223         { 0x190, RSCreate(RS1152x864,  RS8bpp ) },
2224         { 0x107, RSCreate(RS1280x1024, RS8bpp ) },
2225         { 0x198, RSCreate(RS1408x1056, RS8bpp ) },
2226         { 0x11C, RSCreate(RS1600x1200, RS8bpp ) },
2227         { 0x110, RSCreate(RS640x480,   RS15bpp) },
2228         { 0x181, RSCreate(RS768x576,   RS15bpp) },
2229         { 0x113, RSCreate(RS800x600,   RS15bpp) },
2230         { 0x189, RSCreate(RS960x720,   RS15bpp) },
2231         { 0x116, RSCreate(RS1024x768,  RS15bpp) },
2232         { 0x191, RSCreate(RS1152x864,  RS15bpp) },
2233         { 0x119, RSCreate(RS1280x1024, RS15bpp) },
2234         { 0x199, RSCreate(RS1408x1056, RS15bpp) },
2235         { 0x11D, RSCreate(RS1600x1200, RS15bpp) },
2236         { 0x111, RSCreate(RS640x480,   RS16bpp) },
2237         { 0x182, RSCreate(RS768x576,   RS16bpp) },
2238         { 0x114, RSCreate(RS800x600,   RS16bpp) },
2239         { 0x18A, RSCreate(RS960x720,   RS16bpp) },
2240         { 0x117, RSCreate(RS1024x768,  RS16bpp) },
2241         { 0x192, RSCreate(RS1152x864,  RS16bpp) },
2242         { 0x11A, RSCreate(RS1280x1024, RS16bpp) },
2243         { 0x19A, RSCreate(RS1408x1056, RS16bpp) },
2244         { 0x11E, RSCreate(RS1600x1200, RS16bpp) },
2245         { 0x1B2, RSCreate(RS640x480,   RS24bpp) },
2246         { 0x184, RSCreate(RS768x576,   RS24bpp) },
2247         { 0x1B5, RSCreate(RS800x600,   RS24bpp) },
2248         { 0x18C, RSCreate(RS960x720,   RS24bpp) },
2249         { 0x1B8, RSCreate(RS1024x768,  RS24bpp) },
2250         { 0x194, RSCreate(RS1152x864,  RS24bpp) },
2251         { 0x1BB, RSCreate(RS1280x1024, RS24bpp) },
2252         { 0x19C, RSCreate(RS1408x1056, RS24bpp) },
2253         { 0x1BF, RSCreate(RS1600x1200, RS24bpp) },
2254         { 0x112, RSCreate(RS640x480,   RS32bpp) },
2255         { 0x183, RSCreate(RS768x576,   RS32bpp) },
2256         { 0x115, RSCreate(RS800x600,   RS32bpp) },
2257         { 0x18B, RSCreate(RS960x720,   RS32bpp) },
2258         { 0x118, RSCreate(RS1024x768,  RS32bpp) },
2259         { 0x193, RSCreate(RS1152x864,  RS32bpp) },
2260         { 0x11B, RSCreate(RS1280x1024, RS32bpp) },
2261         { 0x19B, RSCreate(RS1408x1056, RS32bpp) },
2262         { 0x11F, RSCreate(RS1600x1200, RS32bpp) },
2263         { 0x010, RSCreate(RS640x350,   RS4bpp ) },
2264         { 0x012, RSCreate(RS640x480,   RS4bpp ) },
2265         { 0x102, RSCreate(RS800x600,   RS4bpp ) },
2266         { 0x104, RSCreate(RS1024x768,  RS4bpp ) },
2267         { 0x106, RSCreate(RS1280x1024, RS4bpp ) },
2268         {     0, 0                              }};
2269
2270 static void __init matroxfb_init_params(void) {
2271         /* fh from kHz to Hz */
2272         if (fh < 1000)
2273                 fh *= 1000;     /* 1kHz minimum */
2274         /* maxclk */
2275         if (maxclk < 1000) maxclk *= 1000;      /* kHz -> Hz, MHz -> kHz */
2276         if (maxclk < 1000000) maxclk *= 1000;   /* kHz -> Hz, 1MHz minimum */
2277         /* fix VESA number */
2278         if (vesa != ~0)
2279                 vesa &= 0x1DFF;         /* mask out clearscreen, acceleration and so on */
2280
2281         /* static settings */
2282         for (RSptr = vesamap; RSptr->vesa; RSptr++) {
2283                 if (RSptr->vesa == vesa) break;
2284         }
2285         if (!RSptr->vesa) {
2286                 printk(KERN_ERR "Invalid vesa mode 0x%04X\n", vesa);
2287                 RSptr = vesamap;
2288         }
2289         {
2290                 int res = RSResolution(RSptr->info)-1;
2291                 if (left == ~0)
2292                         left = timmings[res].left;
2293                 if (!xres)
2294                         xres = timmings[res].xres;
2295                 if (right == ~0)
2296                         right = timmings[res].right;
2297                 if (!hslen)
2298                         hslen = timmings[res].hslen;
2299                 if (upper == ~0)
2300                         upper = timmings[res].upper;
2301                 if (!yres)
2302                         yres = timmings[res].yres;
2303                 if (lower == ~0)
2304                         lower = timmings[res].lower;
2305                 if (!vslen)
2306                         vslen = timmings[res].vslen;
2307                 if (!(fv||fh||maxclk||pixclock))
2308                         fv = timmings[res].vfreq;
2309                 if (depth == -1)
2310                         depth = RSDepth(RSptr->info);
2311         }
2312 }
2313
2314 static int __init matrox_init(void) {
2315         int err;
2316
2317         matroxfb_init_params();
2318         err = pci_register_driver(&matroxfb_driver);
2319         dev = -1;       /* accept all new devices... */
2320         return err;
2321 }
2322
2323 /* **************************** exit-time only **************************** */
2324
2325 static void __exit matrox_done(void) {
2326         pci_unregister_driver(&matroxfb_driver);
2327 }
2328
2329 #ifndef MODULE
2330
2331 /* ************************* init in-kernel code ************************** */
2332
2333 static int __init matroxfb_setup(char *options) {
2334         char *this_opt;
2335
2336         DBG(__func__)
2337
2338         if (!options || !*options)
2339                 return 0;
2340
2341         while ((this_opt = strsep(&options, ",")) != NULL) {
2342                 if (!*this_opt) continue;
2343
2344                 dprintk("matroxfb_setup: option %s\n", this_opt);
2345
2346                 if (!strncmp(this_opt, "dev:", 4))
2347                         dev = simple_strtoul(this_opt+4, NULL, 0);
2348                 else if (!strncmp(this_opt, "depth:", 6)) {
2349                         switch (simple_strtoul(this_opt+6, NULL, 0)) {
2350                                 case 0: depth = RSText; break;
2351                                 case 4: depth = RS4bpp; break;
2352                                 case 8: depth = RS8bpp; break;
2353                                 case 15:depth = RS15bpp; break;
2354                                 case 16:depth = RS16bpp; break;
2355                                 case 24:depth = RS24bpp; break;
2356                                 case 32:depth = RS32bpp; break;
2357                                 default:
2358                                         printk(KERN_ERR "matroxfb: unsupported color depth\n");
2359                         }
2360                 } else if (!strncmp(this_opt, "xres:", 5))
2361                         xres = simple_strtoul(this_opt+5, NULL, 0);
2362                 else if (!strncmp(this_opt, "yres:", 5))
2363                         yres = simple_strtoul(this_opt+5, NULL, 0);
2364                 else if (!strncmp(this_opt, "vslen:", 6))
2365                         vslen = simple_strtoul(this_opt+6, NULL, 0);
2366                 else if (!strncmp(this_opt, "hslen:", 6))
2367                         hslen = simple_strtoul(this_opt+6, NULL, 0);
2368                 else if (!strncmp(this_opt, "left:", 5))
2369                         left = simple_strtoul(this_opt+5, NULL, 0);
2370                 else if (!strncmp(this_opt, "right:", 6))
2371                         right = simple_strtoul(this_opt+6, NULL, 0);
2372                 else if (!strncmp(this_opt, "upper:", 6))
2373                         upper = simple_strtoul(this_opt+6, NULL, 0);
2374                 else if (!strncmp(this_opt, "lower:", 6))
2375                         lower = simple_strtoul(this_opt+6, NULL, 0);
2376                 else if (!strncmp(this_opt, "pixclock:", 9))
2377                         pixclock = simple_strtoul(this_opt+9, NULL, 0);
2378                 else if (!strncmp(this_opt, "sync:", 5))
2379                         sync = simple_strtoul(this_opt+5, NULL, 0);
2380                 else if (!strncmp(this_opt, "vesa:", 5))
2381                         vesa = simple_strtoul(this_opt+5, NULL, 0);
2382                 else if (!strncmp(this_opt, "maxclk:", 7))
2383                         maxclk = simple_strtoul(this_opt+7, NULL, 0);
2384                 else if (!strncmp(this_opt, "fh:", 3))
2385                         fh = simple_strtoul(this_opt+3, NULL, 0);
2386                 else if (!strncmp(this_opt, "fv:", 3))
2387                         fv = simple_strtoul(this_opt+3, NULL, 0);
2388                 else if (!strncmp(this_opt, "mem:", 4))
2389                         mem = simple_strtoul(this_opt+4, NULL, 0);
2390                 else if (!strncmp(this_opt, "mode:", 5))
2391                         strscpy(videomode, this_opt + 5, sizeof(videomode));
2392                 else if (!strncmp(this_opt, "outputs:", 8))
2393                         strscpy(outputs, this_opt + 8, sizeof(outputs));
2394                 else if (!strncmp(this_opt, "dfp:", 4)) {
2395                         dfp_type = simple_strtoul(this_opt+4, NULL, 0);
2396                         dfp = 1;
2397                 }
2398 #ifdef CONFIG_PPC_PMAC
2399                 else if (!strncmp(this_opt, "vmode:", 6)) {
2400                         unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
2401                         if (vmode > 0 && vmode <= VMODE_MAX)
2402                                 default_vmode = vmode;
2403                 } else if (!strncmp(this_opt, "cmode:", 6)) {
2404                         unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
2405                         switch (cmode) {
2406                                 case 0:
2407                                 case 8:
2408                                         default_cmode = CMODE_8;
2409                                         break;
2410                                 case 15:
2411                                 case 16:
2412                                         default_cmode = CMODE_16;
2413                                         break;
2414                                 case 24:
2415                                 case 32:
2416                                         default_cmode = CMODE_32;
2417                                         break;
2418                         }
2419                 }
2420 #endif
2421                 else if (!strcmp(this_opt, "disabled")) /* nodisabled does not exist */
2422                         disabled = 1;
2423                 else if (!strcmp(this_opt, "enabled"))  /* noenabled does not exist */
2424                         disabled = 0;
2425                 else if (!strcmp(this_opt, "sgram"))    /* nosgram == sdram */
2426                         sgram = 1;
2427                 else if (!strcmp(this_opt, "sdram"))
2428                         sgram = 0;
2429                 else if (!strncmp(this_opt, "memtype:", 8))
2430                         memtype = simple_strtoul(this_opt+8, NULL, 0);
2431                 else {
2432                         int value = 1;
2433
2434                         if (!strncmp(this_opt, "no", 2)) {
2435                                 value = 0;
2436                                 this_opt += 2;
2437                         }
2438                         if (! strcmp(this_opt, "inverse"))
2439                                 inverse = value;
2440                         else if (!strcmp(this_opt, "accel"))
2441                                 noaccel = !value;
2442                         else if (!strcmp(this_opt, "pan"))
2443                                 nopan = !value;
2444                         else if (!strcmp(this_opt, "pciretry"))
2445                                 no_pci_retry = !value;
2446                         else if (!strcmp(this_opt, "vga"))
2447                                 novga = !value;
2448                         else if (!strcmp(this_opt, "bios"))
2449                                 nobios = !value;
2450                         else if (!strcmp(this_opt, "init"))
2451                                 noinit = !value;
2452                         else if (!strcmp(this_opt, "mtrr"))
2453                                 mtrr = value;
2454                         else if (!strcmp(this_opt, "inv24"))
2455                                 inv24 = value;
2456                         else if (!strcmp(this_opt, "cross4MB"))
2457                                 cross4MB = value;
2458                         else if (!strcmp(this_opt, "grayscale"))
2459                                 grayscale = value;
2460                         else if (!strcmp(this_opt, "dfp"))
2461                                 dfp = value;
2462                         else {
2463                                 strscpy(videomode, this_opt, sizeof(videomode));
2464                         }
2465                 }
2466         }
2467         return 0;
2468 }
2469
2470 static int __initdata initialized = 0;
2471
2472 static int __init matroxfb_init(void)
2473 {
2474         char *option = NULL;
2475         int err = 0;
2476
2477         DBG(__func__)
2478
2479         if (fb_get_options("matroxfb", &option))
2480                 return -ENODEV;
2481         matroxfb_setup(option);
2482
2483         if (disabled)
2484                 return -ENXIO;
2485         if (!initialized) {
2486                 initialized = 1;
2487                 err = matrox_init();
2488         }
2489         hotplug = 1;
2490         /* never return failure, user can hotplug matrox later... */
2491         return err;
2492 }
2493
2494 #else
2495
2496 /* *************************** init module code **************************** */
2497
2498 MODULE_AUTHOR("(c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
2499 MODULE_DESCRIPTION("Accelerated FBDev driver for Matrox Millennium/Mystique/G100/G200/G400/G450/G550");
2500 MODULE_LICENSE("GPL");
2501
2502 module_param(mem, int, 0);
2503 MODULE_PARM_DESC(mem, "Size of available memory in MB, KB or B (2,4,8,12,16MB, default=autodetect)");
2504 module_param(disabled, int, 0);
2505 MODULE_PARM_DESC(disabled, "Disabled (0 or 1=disabled) (default=0)");
2506 module_param(noaccel, int, 0);
2507 MODULE_PARM_DESC(noaccel, "Do not use accelerating engine (0 or 1=disabled) (default=0)");
2508 module_param(nopan, int, 0);
2509 MODULE_PARM_DESC(nopan, "Disable pan on startup (0 or 1=disabled) (default=0)");
2510 module_param(no_pci_retry, int, 0);
2511 MODULE_PARM_DESC(no_pci_retry, "PCI retries enabled (0 or 1=disabled) (default=0)");
2512 module_param(novga, int, 0);
2513 MODULE_PARM_DESC(novga, "VGA I/O (0x3C0-0x3DF) disabled (0 or 1=disabled) (default=0)");
2514 module_param(nobios, int, 0);
2515 MODULE_PARM_DESC(nobios, "Disables ROM BIOS (0 or 1=disabled) (default=do not change BIOS state)");
2516 module_param(noinit, int, 0);
2517 MODULE_PARM_DESC(noinit, "Disables W/SG/SD-RAM and bus interface initialization (0 or 1=do not initialize) (default=0)");
2518 module_param(memtype, int, 0);
2519 MODULE_PARM_DESC(memtype, "Memory type for G200/G400 (see Documentation/fb/matroxfb.rst for explanation) (default=3 for G200, 0 for G400)");
2520 module_param(mtrr, int, 0);
2521 MODULE_PARM_DESC(mtrr, "This speeds up video memory accesses (0=disabled or 1) (default=1)");
2522 module_param(sgram, int, 0);
2523 MODULE_PARM_DESC(sgram, "Indicates that G100/G200/G400 has SGRAM memory (0=SDRAM, 1=SGRAM) (default=0)");
2524 module_param(inv24, int, 0);
2525 MODULE_PARM_DESC(inv24, "Inverts clock polarity for 24bpp and loop frequency > 100MHz (default=do not invert polarity)");
2526 module_param(inverse, int, 0);
2527 MODULE_PARM_DESC(inverse, "Inverse (0 or 1) (default=0)");
2528 module_param(dev, int, 0);
2529 MODULE_PARM_DESC(dev, "Multihead support, attach to device ID (0..N) (default=all working)");
2530 module_param(vesa, int, 0);
2531 MODULE_PARM_DESC(vesa, "Startup videomode (0x000-0x1FF) (default=0x101)");
2532 module_param(xres, int, 0);
2533 MODULE_PARM_DESC(xres, "Horizontal resolution (px), overrides xres from vesa (default=vesa)");
2534 module_param(yres, int, 0);
2535 MODULE_PARM_DESC(yres, "Vertical resolution (scans), overrides yres from vesa (default=vesa)");
2536 module_param(upper, int, 0);
2537 MODULE_PARM_DESC(upper, "Upper blank space (scans), overrides upper from vesa (default=vesa)");
2538 module_param(lower, int, 0);
2539 MODULE_PARM_DESC(lower, "Lower blank space (scans), overrides lower from vesa (default=vesa)");
2540 module_param(vslen, int, 0);
2541 MODULE_PARM_DESC(vslen, "Vertical sync length (scans), overrides lower from vesa (default=vesa)");
2542 module_param(left, int, 0);
2543 MODULE_PARM_DESC(left, "Left blank space (px), overrides left from vesa (default=vesa)");
2544 module_param(right, int, 0);
2545 MODULE_PARM_DESC(right, "Right blank space (px), overrides right from vesa (default=vesa)");
2546 module_param(hslen, int, 0);
2547 MODULE_PARM_DESC(hslen, "Horizontal sync length (px), overrides hslen from vesa (default=vesa)");
2548 module_param(pixclock, int, 0);
2549 MODULE_PARM_DESC(pixclock, "Pixelclock (ns), overrides pixclock from vesa (default=vesa)");
2550 module_param(sync, int, 0);
2551 MODULE_PARM_DESC(sync, "Sync polarity, overrides sync from vesa (default=vesa)");
2552 module_param(depth, int, 0);
2553 MODULE_PARM_DESC(depth, "Color depth (0=text,8,15,16,24,32) (default=vesa)");
2554 module_param(maxclk, int, 0);
2555 MODULE_PARM_DESC(maxclk, "Startup maximal clock, 0-999MHz, 1000-999999kHz, 1000000-INF Hz");
2556 module_param(fh, int, 0);
2557 MODULE_PARM_DESC(fh, "Startup horizontal frequency, 0-999kHz, 1000-INF Hz");
2558 module_param(fv, int, 0);
2559 MODULE_PARM_DESC(fv, "Startup vertical frequency, 0-INF Hz\n"
2560 "You should specify \"fv:max_monitor_vsync,fh:max_monitor_hsync,maxclk:max_monitor_dotclock\"");
2561 module_param(grayscale, int, 0);
2562 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)");
2563 module_param(cross4MB, int, 0);
2564 MODULE_PARM_DESC(cross4MB, "Specifies that 4MB boundary can be in middle of line. (default=autodetected)");
2565 module_param(dfp, int, 0);
2566 MODULE_PARM_DESC(dfp, "Specifies whether to use digital flat panel interface of G200/G400 (0 or 1) (default=0)");
2567 module_param(dfp_type, int, 0);
2568 MODULE_PARM_DESC(dfp_type, "Specifies DFP interface type (0 to 255) (default=read from hardware)");
2569 module_param_string(outputs, outputs, sizeof(outputs), 0);
2570 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)");
2571 #ifdef CONFIG_PPC_PMAC
2572 module_param_named(vmode, default_vmode, int, 0);
2573 MODULE_PARM_DESC(vmode, "Specify the vmode mode number that should be used (640x480 default)");
2574 module_param_named(cmode, default_cmode, int, 0);
2575 MODULE_PARM_DESC(cmode, "Specify the video depth that should be used (8bit default)");
2576 #endif
2577
2578 static int __init matroxfb_init(void){
2579
2580         DBG(__func__)
2581
2582         if (disabled)
2583                 return -ENXIO;
2584
2585         if (depth == 0)
2586                 depth = RSText;
2587         else if (depth == 4)
2588                 depth = RS4bpp;
2589         else if (depth == 8)
2590                 depth = RS8bpp;
2591         else if (depth == 15)
2592                 depth = RS15bpp;
2593         else if (depth == 16)
2594                 depth = RS16bpp;
2595         else if (depth == 24)
2596                 depth = RS24bpp;
2597         else if (depth == 32)
2598                 depth = RS32bpp;
2599         else if (depth != -1) {
2600                 printk(KERN_ERR "matroxfb: depth %d is not supported, using default\n", depth);
2601                 depth = -1;
2602         }
2603         matrox_init();
2604         /* never return failure; user can hotplug matrox later... */
2605         return 0;
2606 }
2607 #endif  /* MODULE */
2608
2609 module_init(matroxfb_init);
2610 module_exit(matrox_done);
2611 EXPORT_SYMBOL(matroxfb_register_driver);
2612 EXPORT_SYMBOL(matroxfb_unregister_driver);
2613 EXPORT_SYMBOL(matroxfb_wait_for_sync);
2614 EXPORT_SYMBOL(matroxfb_enable_irq);