drivers/video/fbdev/riva/nv_driver.c

   1 /* $XConsortium: nv_driver.c /main/3 1996/10/28 05:13:37 kaleb $ */
   2 /*
   3  * Copyright 1996-1997  David J. McKay
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * DAVID J. MCKAY BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  19  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  20  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  */
  23
  24 /*
  25  * GPL licensing note -- nVidia is allowing a liberal interpretation of
  26  * the documentation restriction above, to merely say that this nVidia's
  27  * copyright and disclaimer should be included with all code derived
  28  * from this source.  -- Jeff Garzik <jgarzik@pobox.com>, 01/Nov/99
  29  */
  30
  31 /* Hacked together from mga driver and 3.3.4 NVIDIA driver by Jarno Paananen
  32    <jpaana@s2.org> */
  33
  34 /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/nv_setup.c,v 1.18 2002/08/0
  35 5 20:47:06 mvojkovi Exp $ */
  36
  37 #include <linux/delay.h>
  38 #include <linux/pci.h>
  39 #include <linux/pci_ids.h>
  40 #include "nv_type.h"
  41 #include "rivafb.h"
  42 #include "nvreg.h"
  43
  44 #define PFX "rivafb: "
  45
  46 static inline unsigned char MISCin(struct riva_par *par)
  47 {
  48         return (VGA_RD08(par->riva.PVIO, 0x3cc));
  49 }
  50
  51 static Bool
  52 riva_is_connected(struct riva_par *par, Bool second)
  53 {
  54         volatile U032 __iomem *PRAMDAC = par->riva.PRAMDAC0;
  55         U032 reg52C, reg608;
  56         Bool present;
  57
  58         if(second) PRAMDAC += 0x800;
  59
  60         reg52C = NV_RD32(PRAMDAC, 0x052C);
  61         reg608 = NV_RD32(PRAMDAC, 0x0608);
  62
  63         NV_WR32(PRAMDAC, 0x0608, reg608 & ~0x00010000);
  64
  65         NV_WR32(PRAMDAC, 0x052C, reg52C & 0x0000FEEE);
  66         mdelay(1);
  67         NV_WR32(PRAMDAC, 0x052C, NV_RD32(PRAMDAC, 0x052C) | 1);
  68
  69         NV_WR32(par->riva.PRAMDAC0, 0x0610, 0x94050140);
  70         NV_WR32(par->riva.PRAMDAC0, 0x0608, 0x00001000);
  71
  72         mdelay(1);
  73
  74         present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? TRUE : FALSE;
  75
  76         NV_WR32(par->riva.PRAMDAC0, 0x0608,
  77                 NV_RD32(par->riva.PRAMDAC0, 0x0608) & 0x0000EFFF);
  78
  79         NV_WR32(PRAMDAC, 0x052C, reg52C);
  80         NV_WR32(PRAMDAC, 0x0608, reg608);
  81
  82         return present;
  83 }
  84
  85 static void
  86 riva_override_CRTC(struct riva_par *par)
  87 {
  88         printk(KERN_INFO PFX
  89                 "Detected CRTC controller %i being used\n",
  90                 par->SecondCRTC ? 1 : 0);
  91
  92         if(par->forceCRTC != -1) {
  93                 printk(KERN_INFO PFX
  94                         "Forcing usage of CRTC %i\n", par->forceCRTC);
  95                 par->SecondCRTC = par->forceCRTC;
  96         }
  97 }
  98
  99 static void
 100 riva_is_second(struct riva_par *par)
 101 {
 102         if (par->FlatPanel == 1) {
 103                 switch(par->Chipset & 0xffff) {
 104                 case 0x0174:
 105                 case 0x0175:
 106                 case 0x0176:
 107                 case 0x0177:
 108                 case 0x0179:
 109                 case 0x017C:
 110                 case 0x017D:
 111                 case 0x0186:
 112                 case 0x0187:
 113                 /* this might not be a good default for the chips below */
 114                 case 0x0286:
 115                 case 0x028C:
 116                 case 0x0316:
 117                 case 0x0317:
 118                 case 0x031A:
 119                 case 0x031B:
 120                 case 0x031C:
 121                 case 0x031D:
 122                 case 0x031E:
 123                 case 0x031F:
 124                 case 0x0324:
 125                 case 0x0325:
 126                 case 0x0328:
 127                 case 0x0329:
 128                 case 0x032C:
 129                 case 0x032D:
 130                         par->SecondCRTC = TRUE;
 131                         break;
 132                 default:
 133                         par->SecondCRTC = FALSE;
 134                         break;
 135                 }
 136         } else {
 137                 if(riva_is_connected(par, 0)) {
 138
 139                         if (NV_RD32(par->riva.PRAMDAC0, 0x0000052C) & 0x100)
 140                                 par->SecondCRTC = TRUE;
 141                         else
 142                                 par->SecondCRTC = FALSE;
 143                 } else
 144                 if (riva_is_connected(par, 1)) {
 145                         if(NV_RD32(par->riva.PRAMDAC0, 0x0000252C) & 0x100)
 146                                 par->SecondCRTC = TRUE;
 147                         else
 148                                 par->SecondCRTC = FALSE;
 149                 } else /* default */
 150                         par->SecondCRTC = FALSE;
 151         }
 152         riva_override_CRTC(par);
 153 }
 154
 155 unsigned long riva_get_memlen(struct riva_par *par)
 156 {
 157         RIVA_HW_INST *chip = &par->riva;
 158         unsigned long memlen = 0;
 159         unsigned int chipset = par->Chipset;
 160         struct pci_dev* dev;
 161         u32 amt;
 162         int domain = pci_domain_nr(par->pdev->bus);
 163
 164         switch (chip->Architecture) {
 165         case NV_ARCH_03:
 166                 if (NV_RD32(chip->PFB, 0x00000000) & 0x00000020) {
 167                         if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20)
 168                             && ((NV_RD32(chip->PMC, 0x00000000)&0x0F)>=0x02)) {
 169                                 /*
 170                                  * SDRAM 128 ZX.
 171                                  */
 172                                 switch (NV_RD32(chip->PFB,0x00000000) & 0x03) {
 173                                 case 2:
 174                                         memlen = 1024 * 4;
 175                                         break;
 176                                 case 1:
 177                                         memlen = 1024 * 2;
 178                                         break;
 179                                 default:
 180                                         memlen = 1024 * 8;
 181                                         break;
 182                                 }
 183                         } else {
 184                                 memlen = 1024 * 8;
 185                         }
 186                 } else  {
 187                         /*
 188                          * SGRAM 128.
 189                          */
 190                         switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003) {
 191                         case 0:
 192                                 memlen = 1024 * 8;
 193                                 break;
 194                         case 2:
 195                                 memlen = 1024 * 4;
 196                                 break;
 197                         default:
 198                                 memlen = 1024 * 2;
 199                                 break;
 200                         }
 201                 }
 202                 break;
 203         case NV_ARCH_04:
 204                 if (NV_RD32(chip->PFB, 0x00000000) & 0x00000100) {
 205                         memlen = ((NV_RD32(chip->PFB, 0x00000000)>>12)&0x0F) *
 206                                 1024 * 2 + 1024 * 2;
 207                 } else {
 208                         switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003) {
 209                         case 0:
 210                                 memlen = 1024 * 32;
 211                                 break;
 212                         case 1:
 213                                 memlen = 1024 * 4;
 214                                 break;
 215                         case 2:
 216                                 memlen = 1024 * 8;
 217                                 break;
 218                         case 3:
 219                         default:
 220                                 memlen = 1024 * 16;
 221                                 break;
 222                         }
 223                 }
 224                 break;
 225         case NV_ARCH_10:
 226         case NV_ARCH_20:
 227         case NV_ARCH_30:
 228                 if(chipset == NV_CHIP_IGEFORCE2) {
 229
 230                         dev = pci_get_domain_bus_and_slot(domain, 0, 1);
 231                         pci_read_config_dword(dev, 0x7C, &amt);
 232                         pci_dev_put(dev);
 233                         memlen = (((amt >> 6) & 31) + 1) * 1024;
 234                 } else if (chipset == NV_CHIP_0x01F0) {
 235                         dev = pci_get_domain_bus_and_slot(domain, 0, 1);
 236                         pci_read_config_dword(dev, 0x84, &amt);
 237                         pci_dev_put(dev);
 238                         memlen = (((amt >> 4) & 127) + 1) * 1024;
 239                 } else {
 240                         switch ((NV_RD32(chip->PFB, 0x0000020C) >> 20) &
 241                                 0x000000FF){
 242                         case 0x02:
 243                                 memlen = 1024 * 2;
 244                                 break;
 245                         case 0x04:
 246                                 memlen = 1024 * 4;
 247                                 break;
 248                         case 0x08:
 249                                 memlen = 1024 * 8;
 250                                 break;
 251                         case 0x10:
 252                                 memlen = 1024 * 16;
 253                                 break;
 254                         case 0x20:
 255                                 memlen = 1024 * 32;
 256                                 break;
 257                         case 0x40:
 258                                 memlen = 1024 * 64;
 259                                 break;
 260                         case 0x80:
 261                                 memlen = 1024 * 128;
 262                                 break;
 263                         default:
 264                                 memlen = 1024 * 16;
 265                                 break;
 266                         }
 267                 }
 268                 break;
 269         }
 270         return memlen;
 271 }
 272
 273 unsigned long riva_get_maxdclk(struct riva_par *par)
 274 {
 275         RIVA_HW_INST *chip = &par->riva;
 276         unsigned long dclk = 0;
 277
 278         switch (chip->Architecture) {
 279         case NV_ARCH_03:
 280                 if (NV_RD32(chip->PFB, 0x00000000) & 0x00000020) {
 281                         if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20)
 282                             && ((NV_RD32(chip->PMC,0x00000000)&0x0F) >= 0x02)) {
 283                                 /*
 284                                  * SDRAM 128 ZX.
 285                                  */
 286                                 dclk = 800000;
 287                         } else {
 288                                 dclk = 1000000;
 289                         }
 290                 } else {
 291                         /*
 292                          * SGRAM 128.
 293                          */
 294                         dclk = 1000000;
 295                 }
 296                 break;
 297         case NV_ARCH_04:
 298         case NV_ARCH_10:
 299         case NV_ARCH_20:
 300         case NV_ARCH_30:
 301                 switch ((NV_RD32(chip->PFB, 0x00000000) >> 3) & 0x00000003) {
 302                 case 3:
 303                         dclk = 800000;
 304                         break;
 305                 default:
 306                         dclk = 1000000;
 307                         break;
 308                 }
 309                 break;
 310         }
 311         return dclk;
 312 }
 313
 314 void
 315 riva_common_setup(struct riva_par *par)
 316 {
 317         par->riva.EnableIRQ = 0;
 318         par->riva.PRAMDAC0 =
 319                 (volatile U032 __iomem *)(par->ctrl_base + 0x00680000);
 320         par->riva.PFB =
 321                 (volatile U032 __iomem *)(par->ctrl_base + 0x00100000);
 322         par->riva.PFIFO =
 323                 (volatile U032 __iomem *)(par->ctrl_base + 0x00002000);
 324         par->riva.PGRAPH =
 325                 (volatile U032 __iomem *)(par->ctrl_base + 0x00400000);
 326         par->riva.PEXTDEV =
 327                 (volatile U032 __iomem *)(par->ctrl_base + 0x00101000);
 328         par->riva.PTIMER =
 329                 (volatile U032 __iomem *)(par->ctrl_base + 0x00009000);
 330         par->riva.PMC =
 331                 (volatile U032 __iomem *)(par->ctrl_base + 0x00000000);
 332         par->riva.FIFO =
 333                 (volatile U032 __iomem *)(par->ctrl_base + 0x00800000);
 334         par->riva.PCIO0 = par->ctrl_base + 0x00601000;
 335         par->riva.PDIO0 = par->ctrl_base + 0x00681000;
 336         par->riva.PVIO = par->ctrl_base + 0x000C0000;
 337
 338         par->riva.IO = (MISCin(par) & 0x01) ? 0x3D0 : 0x3B0;
 339
 340         if (par->FlatPanel == -1) {
 341                 switch (par->Chipset & 0xffff) {
 342                 case 0x0112:   /* known laptop chips */
 343                 case 0x0174:
 344                 case 0x0175:
 345                 case 0x0176:
 346                 case 0x0177:
 347                 case 0x0179:
 348                 case 0x017C:
 349                 case 0x017D:
 350                 case 0x0186:
 351                 case 0x0187:
 352                 case 0x0286:
 353                 case 0x028C:
 354                 case 0x0316:
 355                 case 0x0317:
 356                 case 0x031A:
 357                 case 0x031B:
 358                 case 0x031C:
 359                 case 0x031D:
 360                 case 0x031E:
 361                 case 0x031F:
 362                 case 0x0324:
 363                 case 0x0325:
 364                 case 0x0328:
 365                 case 0x0329:
 366                 case 0x032C:
 367                 case 0x032D:
 368                         printk(KERN_INFO PFX
 369                                 "On a laptop.  Assuming Digital Flat Panel\n");
 370                         par->FlatPanel = 1;
 371                         break;
 372                 default:
 373                         break;
 374                 }
 375         }
 376
 377         switch (par->Chipset & 0x0ff0) {
 378         case 0x0110:
 379                 if (par->Chipset == NV_CHIP_GEFORCE2_GO)
 380                         par->SecondCRTC = TRUE;
 381 #if defined(__powerpc__)
 382                 if (par->FlatPanel == 1)
 383                         par->SecondCRTC = TRUE;
 384 #endif
 385                 riva_override_CRTC(par);
 386                 break;
 387         case 0x0170:
 388         case 0x0180:
 389         case 0x01F0:
 390         case 0x0250:
 391         case 0x0280:
 392         case 0x0300:
 393         case 0x0310:
 394         case 0x0320:
 395         case 0x0330:
 396         case 0x0340:
 397                 riva_is_second(par);
 398                 break;
 399         default:
 400                 break;
 401         }
 402
 403         if (par->SecondCRTC) {
 404                 par->riva.PCIO = par->riva.PCIO0 + 0x2000;
 405                 par->riva.PCRTC = par->riva.PCRTC0 + 0x800;
 406                 par->riva.PRAMDAC = par->riva.PRAMDAC0 + 0x800;
 407                 par->riva.PDIO = par->riva.PDIO0 + 0x2000;
 408         } else {
 409                 par->riva.PCIO = par->riva.PCIO0;
 410                 par->riva.PCRTC = par->riva.PCRTC0;
 411                 par->riva.PRAMDAC = par->riva.PRAMDAC0;
 412                 par->riva.PDIO = par->riva.PDIO0;
 413         }
 414
 415         if (par->FlatPanel == -1) {
 416                 /* Fix me, need x86 DDC code */
 417                 par->FlatPanel = 0;
 418         }
 419         par->riva.flatPanel = (par->FlatPanel > 0) ? TRUE : FALSE;
 420
 421         RivaGetConfig(&par->riva, par->pdev, par->Chipset);
 422 }
 423