git.oblomov.eu Git - linux-2.6/blob - drivers/scsi/aic7xxx/aic7xxx_pci.c

   1 /*
   2  * Product specific probe and attach routines for:
   3  *      3940, 2940, aic7895, aic7890, aic7880,
   4  *      aic7870, aic7860 and aic7850 SCSI controllers
   5  *
   6  * Copyright (c) 1994-2001 Justin T. Gibbs.
   7  * Copyright (c) 2000-2001 Adaptec Inc.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions, and the following disclaimer,
  15  *    without modification.
  16  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  17  *    substantially similar to the "NO WARRANTY" disclaimer below
  18  *    ("Disclaimer") and any redistribution must be conditioned upon
  19  *    including a substantially similar Disclaimer requirement for further
  20  *    binary redistribution.
  21  * 3. Neither the names of the above-listed copyright holders nor the names
  22  *    of any contributors may be used to endorse or promote products derived
  23  *    from this software without specific prior written permission.
  24  *
  25  * Alternatively, this software may be distributed under the terms of the
  26  * GNU General Public License ("GPL") version 2 as published by the Free
  27  * Software Foundation.
  28  *
  29  * NO WARRANTY
  30  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  31  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  32  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  33  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  34  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  36  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  37  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  38  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  39  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  40  * POSSIBILITY OF SUCH DAMAGES.
  41  *
  42  * $Id: //depot/aic7xxx/aic7xxx/aic7xxx_pci.c#79 $
  43  */
  44
  45 #ifdef __linux__
  46 #include "aic7xxx_osm.h"
  47 #include "aic7xxx_inline.h"
  48 #include "aic7xxx_93cx6.h"
  49 #else
  50 #include <dev/aic7xxx/aic7xxx_osm.h>
  51 #include <dev/aic7xxx/aic7xxx_inline.h>
  52 #include <dev/aic7xxx/aic7xxx_93cx6.h>
  53 #endif
  54
  55 #include "aic7xxx_pci.h"
  56
  57 static __inline uint64_t
  58 ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
  59 {
  60         uint64_t id;
  61
  62         id = subvendor
  63            | (subdevice << 16)
  64            | ((uint64_t)vendor << 32)
  65            | ((uint64_t)device << 48);
  66
  67         return (id);
  68 }
  69
  70 #define AHC_PCI_IOADDR  PCIR_MAPS       /* I/O Address */
  71 #define AHC_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */
  72
  73 #define DEVID_9005_TYPE(id) ((id) & 0xF)
  74 #define         DEVID_9005_TYPE_HBA             0x0     /* Standard Card */
  75 #define         DEVID_9005_TYPE_AAA             0x3     /* RAID Card */
  76 #define         DEVID_9005_TYPE_SISL            0x5     /* Container ROMB */
  77 #define         DEVID_9005_TYPE_MB              0xF     /* On Motherboard */
  78
  79 #define DEVID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
  80 #define         DEVID_9005_MAXRATE_U160         0x0
  81 #define         DEVID_9005_MAXRATE_ULTRA2       0x1
  82 #define         DEVID_9005_MAXRATE_ULTRA        0x2
  83 #define         DEVID_9005_MAXRATE_FAST         0x3
  84
  85 #define DEVID_9005_MFUNC(id) (((id) & 0x40) >> 6)
  86
  87 #define DEVID_9005_CLASS(id) (((id) & 0xFF00) >> 8)
  88 #define         DEVID_9005_CLASS_SPI            0x0     /* Parallel SCSI */
  89
  90 #define SUBID_9005_TYPE(id) ((id) & 0xF)
  91 #define         SUBID_9005_TYPE_MB              0xF     /* On Motherboard */
  92 #define         SUBID_9005_TYPE_CARD            0x0     /* Standard Card */
  93 #define         SUBID_9005_TYPE_LCCARD          0x1     /* Low Cost Card */
  94 #define         SUBID_9005_TYPE_RAID            0x3     /* Combined with Raid */
  95
  96 #define SUBID_9005_TYPE_KNOWN(id)                       \
  97           ((((id) & 0xF) == SUBID_9005_TYPE_MB)         \
  98         || (((id) & 0xF) == SUBID_9005_TYPE_CARD)       \
  99         || (((id) & 0xF) == SUBID_9005_TYPE_LCCARD)     \
 100         || (((id) & 0xF) == SUBID_9005_TYPE_RAID))
 101
 102 #define SUBID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
 103 #define         SUBID_9005_MAXRATE_ULTRA2       0x0
 104 #define         SUBID_9005_MAXRATE_ULTRA        0x1
 105 #define         SUBID_9005_MAXRATE_U160         0x2
 106 #define         SUBID_9005_MAXRATE_RESERVED     0x3
 107
 108 #define SUBID_9005_SEEPTYPE(id)                                         \
 109         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
 110          ? ((id) & 0xC0) >> 6                                           \
 111          : ((id) & 0x300) >> 8)
 112 #define         SUBID_9005_SEEPTYPE_NONE        0x0
 113 #define         SUBID_9005_SEEPTYPE_1K          0x1
 114 #define         SUBID_9005_SEEPTYPE_2K_4K       0x2
 115 #define         SUBID_9005_SEEPTYPE_RESERVED    0x3
 116 #define SUBID_9005_AUTOTERM(id)                                         \
 117         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
 118          ? (((id) & 0x400) >> 10) == 0                                  \
 119          : (((id) & 0x40) >> 6) == 0)
 120
 121 #define SUBID_9005_NUMCHAN(id)                                          \
 122         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
 123          ? ((id) & 0x300) >> 8                                          \
 124          : ((id) & 0xC00) >> 10)
 125
 126 #define SUBID_9005_LEGACYCONN(id)                                       \
 127         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
 128          ? 0                                                            \
 129          : ((id) & 0x80) >> 7)
 130
 131 #define SUBID_9005_MFUNCENB(id)                                         \
 132         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
 133          ? ((id) & 0x800) >> 11                                         \
 134          : ((id) & 0x1000) >> 12)
 135 /*
 136  * Informational only. Should use chip register to be
 137  * certain, but may be use in identification strings.
 138  */
 139 #define SUBID_9005_CARD_SCSIWIDTH_MASK  0x2000
 140 #define SUBID_9005_CARD_PCIWIDTH_MASK   0x4000
 141 #define SUBID_9005_CARD_SEDIFF_MASK     0x8000
 142
 143 static ahc_device_setup_t ahc_aic785X_setup;
 144 static ahc_device_setup_t ahc_aic7860_setup;
 145 static ahc_device_setup_t ahc_apa1480_setup;
 146 static ahc_device_setup_t ahc_aic7870_setup;
 147 static ahc_device_setup_t ahc_aic7870h_setup;
 148 static ahc_device_setup_t ahc_aha394X_setup;
 149 static ahc_device_setup_t ahc_aha394Xh_setup;
 150 static ahc_device_setup_t ahc_aha494X_setup;
 151 static ahc_device_setup_t ahc_aha494Xh_setup;
 152 static ahc_device_setup_t ahc_aha398X_setup;
 153 static ahc_device_setup_t ahc_aic7880_setup;
 154 static ahc_device_setup_t ahc_aic7880h_setup;
 155 static ahc_device_setup_t ahc_aha2940Pro_setup;
 156 static ahc_device_setup_t ahc_aha394XU_setup;
 157 static ahc_device_setup_t ahc_aha394XUh_setup;
 158 static ahc_device_setup_t ahc_aha398XU_setup;
 159 static ahc_device_setup_t ahc_aic7890_setup;
 160 static ahc_device_setup_t ahc_aic7892_setup;
 161 static ahc_device_setup_t ahc_aic7895_setup;
 162 static ahc_device_setup_t ahc_aic7895h_setup;
 163 static ahc_device_setup_t ahc_aic7896_setup;
 164 static ahc_device_setup_t ahc_aic7899_setup;
 165 static ahc_device_setup_t ahc_aha29160C_setup;
 166 static ahc_device_setup_t ahc_raid_setup;
 167 static ahc_device_setup_t ahc_aha394XX_setup;
 168 static ahc_device_setup_t ahc_aha494XX_setup;
 169 static ahc_device_setup_t ahc_aha398XX_setup;
 170
 171 static struct ahc_pci_identity ahc_pci_ident_table [] =
 172 {
 173         /* aic7850 based controllers */
 174         {
 175                 ID_AHA_2902_04_10_15_20C_30C,
 176                 ID_ALL_MASK,
 177                 "Adaptec 2902/04/10/15/20C/30C SCSI adapter",
 178                 ahc_aic785X_setup
 179         },
 180         /* aic7860 based controllers */
 181         {
 182                 ID_AHA_2930CU,
 183                 ID_ALL_MASK,
 184                 "Adaptec 2930CU SCSI adapter",
 185                 ahc_aic7860_setup
 186         },
 187         {
 188                 ID_AHA_1480A & ID_DEV_VENDOR_MASK,
 189                 ID_DEV_VENDOR_MASK,
 190                 "Adaptec 1480A Ultra SCSI adapter",
 191                 ahc_apa1480_setup
 192         },
 193         {
 194                 ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
 195                 ID_DEV_VENDOR_MASK,
 196                 "Adaptec 2940A Ultra SCSI adapter",
 197                 ahc_aic7860_setup
 198         },
 199         {
 200                 ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
 201                 ID_DEV_VENDOR_MASK,
 202                 "Adaptec 2940A/CN Ultra SCSI adapter",
 203                 ahc_aic7860_setup
 204         },
 205         {
 206                 ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
 207                 ID_DEV_VENDOR_MASK,
 208                 "Adaptec 2930C Ultra SCSI adapter (VAR)",
 209                 ahc_aic7860_setup
 210         },
 211         /* aic7870 based controllers */
 212         {
 213                 ID_AHA_2940,
 214                 ID_ALL_MASK,
 215                 "Adaptec 2940 SCSI adapter",
 216                 ahc_aic7870_setup
 217         },
 218         {
 219                 ID_AHA_3940,
 220                 ID_ALL_MASK,
 221                 "Adaptec 3940 SCSI adapter",
 222                 ahc_aha394X_setup
 223         },
 224         {
 225                 ID_AHA_398X,
 226                 ID_ALL_MASK,
 227                 "Adaptec 398X SCSI RAID adapter",
 228                 ahc_aha398X_setup
 229         },
 230         {
 231                 ID_AHA_2944,
 232                 ID_ALL_MASK,
 233                 "Adaptec 2944 SCSI adapter",
 234                 ahc_aic7870h_setup
 235         },
 236         {
 237                 ID_AHA_3944,
 238                 ID_ALL_MASK,
 239                 "Adaptec 3944 SCSI adapter",
 240                 ahc_aha394Xh_setup
 241         },
 242         {
 243                 ID_AHA_4944,
 244                 ID_ALL_MASK,
 245                 "Adaptec 4944 SCSI adapter",
 246                 ahc_aha494Xh_setup
 247         },
 248         /* aic7880 based controllers */
 249         {
 250                 ID_AHA_2940U & ID_DEV_VENDOR_MASK,
 251                 ID_DEV_VENDOR_MASK,
 252                 "Adaptec 2940 Ultra SCSI adapter",
 253                 ahc_aic7880_setup
 254         },
 255         {
 256                 ID_AHA_3940U & ID_DEV_VENDOR_MASK,
 257                 ID_DEV_VENDOR_MASK,
 258                 "Adaptec 3940 Ultra SCSI adapter",
 259                 ahc_aha394XU_setup
 260         },
 261         {
 262                 ID_AHA_2944U & ID_DEV_VENDOR_MASK,
 263                 ID_DEV_VENDOR_MASK,
 264                 "Adaptec 2944 Ultra SCSI adapter",
 265                 ahc_aic7880h_setup
 266         },
 267         {
 268                 ID_AHA_3944U & ID_DEV_VENDOR_MASK,
 269                 ID_DEV_VENDOR_MASK,
 270                 "Adaptec 3944 Ultra SCSI adapter",
 271                 ahc_aha394XUh_setup
 272         },
 273         {
 274                 ID_AHA_398XU & ID_DEV_VENDOR_MASK,
 275                 ID_DEV_VENDOR_MASK,
 276                 "Adaptec 398X Ultra SCSI RAID adapter",
 277                 ahc_aha398XU_setup
 278         },
 279         {
 280                 /*
 281                  * XXX Don't know the slot numbers
 282                  * so we can't identify channels
 283                  */
 284                 ID_AHA_4944U & ID_DEV_VENDOR_MASK,
 285                 ID_DEV_VENDOR_MASK,
 286                 "Adaptec 4944 Ultra SCSI adapter",
 287                 ahc_aic7880h_setup
 288         },
 289         {
 290                 ID_AHA_2930U & ID_DEV_VENDOR_MASK,
 291                 ID_DEV_VENDOR_MASK,
 292                 "Adaptec 2930 Ultra SCSI adapter",
 293                 ahc_aic7880_setup
 294         },
 295         {
 296                 ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
 297                 ID_DEV_VENDOR_MASK,
 298                 "Adaptec 2940 Pro Ultra SCSI adapter",
 299                 ahc_aha2940Pro_setup
 300         },
 301         {
 302                 ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
 303                 ID_DEV_VENDOR_MASK,
 304                 "Adaptec 2940/CN Ultra SCSI adapter",
 305                 ahc_aic7880_setup
 306         },
 307         /* Ignore all SISL (AAC on MB) based controllers. */
 308         {
 309                 ID_9005_SISL_ID,
 310                 ID_9005_SISL_MASK,
 311                 NULL,
 312                 NULL
 313         },
 314         /* aic7890 based controllers */
 315         {
 316                 ID_AHA_2930U2,
 317                 ID_ALL_MASK,
 318                 "Adaptec 2930 Ultra2 SCSI adapter",
 319                 ahc_aic7890_setup
 320         },
 321         {
 322                 ID_AHA_2940U2B,
 323                 ID_ALL_MASK,
 324                 "Adaptec 2940B Ultra2 SCSI adapter",
 325                 ahc_aic7890_setup
 326         },
 327         {
 328                 ID_AHA_2940U2_OEM,
 329                 ID_ALL_MASK,
 330                 "Adaptec 2940 Ultra2 SCSI adapter (OEM)",
 331                 ahc_aic7890_setup
 332         },
 333         {
 334                 ID_AHA_2940U2,
 335                 ID_ALL_MASK,
 336                 "Adaptec 2940 Ultra2 SCSI adapter",
 337                 ahc_aic7890_setup
 338         },
 339         {
 340                 ID_AHA_2950U2B,
 341                 ID_ALL_MASK,
 342                 "Adaptec 2950 Ultra2 SCSI adapter",
 343                 ahc_aic7890_setup
 344         },
 345         {
 346                 ID_AIC7890_ARO,
 347                 ID_ALL_MASK,
 348                 "Adaptec aic7890/91 Ultra2 SCSI adapter (ARO)",
 349                 ahc_aic7890_setup
 350         },
 351         {
 352                 ID_AAA_131U2,
 353                 ID_ALL_MASK,
 354                 "Adaptec AAA-131 Ultra2 RAID adapter",
 355                 ahc_aic7890_setup
 356         },
 357         /* aic7892 based controllers */
 358         {
 359                 ID_AHA_29160,
 360                 ID_ALL_MASK,
 361                 "Adaptec 29160 Ultra160 SCSI adapter",
 362                 ahc_aic7892_setup
 363         },
 364         {
 365                 ID_AHA_29160_CPQ,
 366                 ID_ALL_MASK,
 367                 "Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
 368                 ahc_aic7892_setup
 369         },
 370         {
 371                 ID_AHA_29160N,
 372                 ID_ALL_MASK,
 373                 "Adaptec 29160N Ultra160 SCSI adapter",
 374                 ahc_aic7892_setup
 375         },
 376         {
 377                 ID_AHA_29160C,
 378                 ID_ALL_MASK,
 379                 "Adaptec 29160C Ultra160 SCSI adapter",
 380                 ahc_aha29160C_setup
 381         },
 382         {
 383                 ID_AHA_29160B,
 384                 ID_ALL_MASK,
 385                 "Adaptec 29160B Ultra160 SCSI adapter",
 386                 ahc_aic7892_setup
 387         },
 388         {
 389                 ID_AHA_19160B,
 390                 ID_ALL_MASK,
 391                 "Adaptec 19160B Ultra160 SCSI adapter",
 392                 ahc_aic7892_setup
 393         },
 394         {
 395                 ID_AIC7892_ARO,
 396                 ID_ALL_MASK,
 397                 "Adaptec aic7892 Ultra160 SCSI adapter (ARO)",
 398                 ahc_aic7892_setup
 399         },
 400         {
 401                 ID_AHA_2915_30LP,
 402                 ID_ALL_MASK,
 403                 "Adaptec 2915/30LP Ultra160 SCSI adapter",
 404                 ahc_aic7892_setup
 405         },
 406         /* aic7895 based controllers */
 407         {
 408                 ID_AHA_2940U_DUAL,
 409                 ID_ALL_MASK,
 410                 "Adaptec 2940/DUAL Ultra SCSI adapter",
 411                 ahc_aic7895_setup
 412         },
 413         {
 414                 ID_AHA_3940AU,
 415                 ID_ALL_MASK,
 416                 "Adaptec 3940A Ultra SCSI adapter",
 417                 ahc_aic7895_setup
 418         },
 419         {
 420                 ID_AHA_3944AU,
 421                 ID_ALL_MASK,
 422                 "Adaptec 3944A Ultra SCSI adapter",
 423                 ahc_aic7895h_setup
 424         },
 425         {
 426                 ID_AIC7895_ARO,
 427                 ID_AIC7895_ARO_MASK,
 428                 "Adaptec aic7895 Ultra SCSI adapter (ARO)",
 429                 ahc_aic7895_setup
 430         },
 431         /* aic7896/97 based controllers */
 432         {
 433                 ID_AHA_3950U2B_0,
 434                 ID_ALL_MASK,
 435                 "Adaptec 3950B Ultra2 SCSI adapter",
 436                 ahc_aic7896_setup
 437         },
 438         {
 439                 ID_AHA_3950U2B_1,
 440                 ID_ALL_MASK,
 441                 "Adaptec 3950B Ultra2 SCSI adapter",
 442                 ahc_aic7896_setup
 443         },
 444         {
 445                 ID_AHA_3950U2D_0,
 446                 ID_ALL_MASK,
 447                 "Adaptec 3950D Ultra2 SCSI adapter",
 448                 ahc_aic7896_setup
 449         },
 450         {
 451                 ID_AHA_3950U2D_1,
 452                 ID_ALL_MASK,
 453                 "Adaptec 3950D Ultra2 SCSI adapter",
 454                 ahc_aic7896_setup
 455         },
 456         {
 457                 ID_AIC7896_ARO,
 458                 ID_ALL_MASK,
 459                 "Adaptec aic7896/97 Ultra2 SCSI adapter (ARO)",
 460                 ahc_aic7896_setup
 461         },
 462         /* aic7899 based controllers */
 463         {
 464                 ID_AHA_3960D,
 465                 ID_ALL_MASK,
 466                 "Adaptec 3960D Ultra160 SCSI adapter",
 467                 ahc_aic7899_setup
 468         },
 469         {
 470                 ID_AHA_3960D_CPQ,
 471                 ID_ALL_MASK,
 472                 "Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
 473                 ahc_aic7899_setup
 474         },
 475         {
 476                 ID_AIC7899_ARO,
 477                 ID_ALL_MASK,
 478                 "Adaptec aic7899 Ultra160 SCSI adapter (ARO)",
 479                 ahc_aic7899_setup
 480         },
 481         /* Generic chip probes for devices we don't know 'exactly' */
 482         {
 483                 ID_AIC7850 & ID_DEV_VENDOR_MASK,
 484                 ID_DEV_VENDOR_MASK,
 485                 "Adaptec aic7850 SCSI adapter",
 486                 ahc_aic785X_setup
 487         },
 488         {
 489                 ID_AIC7855 & ID_DEV_VENDOR_MASK,
 490                 ID_DEV_VENDOR_MASK,
 491                 "Adaptec aic7855 SCSI adapter",
 492                 ahc_aic785X_setup
 493         },
 494         {
 495                 ID_AIC7859 & ID_DEV_VENDOR_MASK,
 496                 ID_DEV_VENDOR_MASK,
 497                 "Adaptec aic7859 SCSI adapter",
 498                 ahc_aic7860_setup
 499         },
 500         {
 501                 ID_AIC7860 & ID_DEV_VENDOR_MASK,
 502                 ID_DEV_VENDOR_MASK,
 503                 "Adaptec aic7860 Ultra SCSI adapter",
 504                 ahc_aic7860_setup
 505         },
 506         {
 507                 ID_AIC7870 & ID_DEV_VENDOR_MASK,
 508                 ID_DEV_VENDOR_MASK,
 509                 "Adaptec aic7870 SCSI adapter",
 510                 ahc_aic7870_setup
 511         },
 512         {
 513                 ID_AIC7880 & ID_DEV_VENDOR_MASK,
 514                 ID_DEV_VENDOR_MASK,
 515                 "Adaptec aic7880 Ultra SCSI adapter",
 516                 ahc_aic7880_setup
 517         },
 518         {
 519                 ID_AIC7890 & ID_9005_GENERIC_MASK,
 520                 ID_9005_GENERIC_MASK,
 521                 "Adaptec aic7890/91 Ultra2 SCSI adapter",
 522                 ahc_aic7890_setup
 523         },
 524         {
 525                 ID_AIC7892 & ID_9005_GENERIC_MASK,
 526                 ID_9005_GENERIC_MASK,
 527                 "Adaptec aic7892 Ultra160 SCSI adapter",
 528                 ahc_aic7892_setup
 529         },
 530         {
 531                 ID_AIC7895 & ID_DEV_VENDOR_MASK,
 532                 ID_DEV_VENDOR_MASK,
 533                 "Adaptec aic7895 Ultra SCSI adapter",
 534                 ahc_aic7895_setup
 535         },
 536         {
 537                 ID_AIC7896 & ID_9005_GENERIC_MASK,
 538                 ID_9005_GENERIC_MASK,
 539                 "Adaptec aic7896/97 Ultra2 SCSI adapter",
 540                 ahc_aic7896_setup
 541         },
 542         {
 543                 ID_AIC7899 & ID_9005_GENERIC_MASK,
 544                 ID_9005_GENERIC_MASK,
 545                 "Adaptec aic7899 Ultra160 SCSI adapter",
 546                 ahc_aic7899_setup
 547         },
 548         {
 549                 ID_AIC7810 & ID_DEV_VENDOR_MASK,
 550                 ID_DEV_VENDOR_MASK,
 551                 "Adaptec aic7810 RAID memory controller",
 552                 ahc_raid_setup
 553         },
 554         {
 555                 ID_AIC7815 & ID_DEV_VENDOR_MASK,
 556                 ID_DEV_VENDOR_MASK,
 557                 "Adaptec aic7815 RAID memory controller",
 558                 ahc_raid_setup
 559         }
 560 };
 561
 562 static const u_int ahc_num_pci_devs = ARRAY_SIZE(ahc_pci_ident_table);
 563
 564 #define AHC_394X_SLOT_CHANNEL_A 4
 565 #define AHC_394X_SLOT_CHANNEL_B 5
 566
 567 #define AHC_398X_SLOT_CHANNEL_A 4
 568 #define AHC_398X_SLOT_CHANNEL_B 8
 569 #define AHC_398X_SLOT_CHANNEL_C 12
 570
 571 #define AHC_494X_SLOT_CHANNEL_A 4
 572 #define AHC_494X_SLOT_CHANNEL_B 5
 573 #define AHC_494X_SLOT_CHANNEL_C 6
 574 #define AHC_494X_SLOT_CHANNEL_D 7
 575
 576 #define DEVCONFIG               0x40
 577 #define         PCIERRGENDIS    0x80000000ul
 578 #define         SCBSIZE32       0x00010000ul    /* aic789X only */
 579 #define         REXTVALID       0x00001000ul    /* ultra cards only */
 580 #define         MPORTMODE       0x00000400ul    /* aic7870+ only */
 581 #define         RAMPSM          0x00000200ul    /* aic7870+ only */
 582 #define         VOLSENSE        0x00000100ul
 583 #define         PCI64BIT        0x00000080ul    /* 64Bit PCI bus (Ultra2 Only)*/
 584 #define         SCBRAMSEL       0x00000080ul
 585 #define         MRDCEN          0x00000040ul
 586 #define         EXTSCBTIME      0x00000020ul    /* aic7870 only */
 587 #define         EXTSCBPEN       0x00000010ul    /* aic7870 only */
 588 #define         BERREN          0x00000008ul
 589 #define         DACEN           0x00000004ul
 590 #define         STPWLEVEL       0x00000002ul
 591 #define         DIFACTNEGEN     0x00000001ul    /* aic7870 only */
 592
 593 #define CSIZE_LATTIME           0x0c
 594 #define         CACHESIZE       0x0000003ful    /* only 5 bits */
 595 #define         LATTIME         0x0000ff00ul
 596
 597 /* PCI STATUS definitions */
 598 #define DPE     0x80
 599 #define SSE     0x40
 600 #define RMA     0x20
 601 #define RTA     0x10
 602 #define STA     0x08
 603 #define DPR     0x01
 604
 605 static int ahc_9005_subdevinfo_valid(uint16_t vendor, uint16_t device,
 606                                      uint16_t subvendor, uint16_t subdevice);
 607 static int ahc_ext_scbram_present(struct ahc_softc *ahc);
 608 static void ahc_scbram_config(struct ahc_softc *ahc, int enable,
 609                                   int pcheck, int fast, int large);
 610 static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
 611 static void check_extport(struct ahc_softc *ahc, u_int *sxfrctl1);
 612 static void ahc_parse_pci_eeprom(struct ahc_softc *ahc,
 613                                  struct seeprom_config *sc);
 614 static void configure_termination(struct ahc_softc *ahc,
 615                                   struct seeprom_descriptor *sd,
 616                                   u_int adapter_control,
 617                                   u_int *sxfrctl1);
 618
 619 static void ahc_new_term_detect(struct ahc_softc *ahc,
 620                                 int *enableSEC_low,
 621                                 int *enableSEC_high,
 622                                 int *enablePRI_low,
 623                                 int *enablePRI_high,
 624                                 int *eeprom_present);
 625 static void aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
 626                                  int *internal68_present,
 627                                  int *externalcable_present,
 628                                  int *eeprom_present);
 629 static void aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
 630                                  int *externalcable_present,
 631                                  int *eeprom_present);
 632 static void    write_brdctl(struct ahc_softc *ahc, uint8_t value);
 633 static uint8_t read_brdctl(struct ahc_softc *ahc);
 634 static void ahc_pci_intr(struct ahc_softc *ahc);
 635 static int  ahc_pci_chip_init(struct ahc_softc *ahc);
 636
 637 static int
 638 ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor,
 639                           uint16_t subdevice, uint16_t subvendor)
 640 {
 641         int result;
 642
 643         /* Default to invalid. */
 644         result = 0;
 645         if (vendor == 0x9005
 646          && subvendor == 0x9005
 647          && subdevice != device
 648          && SUBID_9005_TYPE_KNOWN(subdevice) != 0) {
 649
 650                 switch (SUBID_9005_TYPE(subdevice)) {
 651                 case SUBID_9005_TYPE_MB:
 652                         break;
 653                 case SUBID_9005_TYPE_CARD:
 654                 case SUBID_9005_TYPE_LCCARD:
 655                         /*
 656                          * Currently only trust Adaptec cards to
 657                          * get the sub device info correct.
 658                          */
 659                         if (DEVID_9005_TYPE(device) == DEVID_9005_TYPE_HBA)
 660                                 result = 1;
 661                         break;
 662                 case SUBID_9005_TYPE_RAID:
 663                         break;
 664                 default:
 665                         break;
 666                 }
 667         }
 668         return (result);
 669 }
 670
 671 struct ahc_pci_identity *
 672 ahc_find_pci_device(ahc_dev_softc_t pci)
 673 {
 674         uint64_t  full_id;
 675         uint16_t  device;
 676         uint16_t  vendor;
 677         uint16_t  subdevice;
 678         uint16_t  subvendor;
 679         struct    ahc_pci_identity *entry;
 680         u_int     i;
 681
 682         vendor = ahc_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
 683         device = ahc_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
 684         subvendor = ahc_pci_read_config(pci, PCIR_SUBVEND_0, /*bytes*/2);
 685         subdevice = ahc_pci_read_config(pci, PCIR_SUBDEV_0, /*bytes*/2);
 686         full_id = ahc_compose_id(device, vendor, subdevice, subvendor);
 687
 688         /*
 689          * If the second function is not hooked up, ignore it.
 690          * Unfortunately, not all MB vendors implement the
 691          * subdevice ID as per the Adaptec spec, so do our best
 692          * to sanity check it prior to accepting the subdevice
 693          * ID as valid.
 694          */
 695         if (ahc_get_pci_function(pci) > 0
 696          && ahc_9005_subdevinfo_valid(vendor, device, subvendor, subdevice)
 697          && SUBID_9005_MFUNCENB(subdevice) == 0)
 698                 return (NULL);
 699
 700         for (i = 0; i < ahc_num_pci_devs; i++) {
 701                 entry = &ahc_pci_ident_table[i];
 702                 if (entry->full_id == (full_id & entry->id_mask)) {
 703                         /* Honor exclusion entries. */
 704                         if (entry->name == NULL)
 705                                 return (NULL);
 706                         return (entry);
 707                 }
 708         }
 709         return (NULL);
 710 }
 711
 712 int
 713 ahc_pci_config(struct ahc_softc *ahc, struct ahc_pci_identity *entry)
 714 {
 715         u_int    command;
 716         u_int    our_id;
 717         u_int    sxfrctl1;
 718         u_int    scsiseq;
 719         u_int    dscommand0;
 720         uint32_t devconfig;
 721         int      error;
 722         uint8_t  sblkctl;
 723
 724         our_id = 0;
 725         error = entry->setup(ahc);
 726         if (error != 0)
 727                 return (error);
 728         ahc->chip |= AHC_PCI;
 729         ahc->description = entry->name;
 730
 731         pci_set_power_state(ahc->dev_softc, AHC_POWER_STATE_D0);
 732
 733         error = ahc_pci_map_registers(ahc);
 734         if (error != 0)
 735                 return (error);
 736
 737         /*
 738          * Before we continue probing the card, ensure that
 739          * its interrupts are *disabled*.  We don't want
 740          * a misstep to hang the machine in an interrupt
 741          * storm.
 742          */
 743         ahc_intr_enable(ahc, FALSE);
 744
 745         devconfig = ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
 746
 747         /*
 748          * If we need to support high memory, enable dual
 749          * address cycles.  This bit must be set to enable
 750          * high address bit generation even if we are on a
 751          * 64bit bus (PCI64BIT set in devconfig).
 752          */
 753         if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) {
 754
 755                 if (bootverbose)
 756                         printf("%s: Enabling 39Bit Addressing\n",
 757                                ahc_name(ahc));
 758                 devconfig |= DACEN;
 759         }
 760
 761         /* Ensure that pci error generation, a test feature, is disabled. */
 762         devconfig |= PCIERRGENDIS;
 763
 764         ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
 765
 766         /* Ensure busmastering is enabled */
 767         command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
 768         command |= PCIM_CMD_BUSMASTEREN;
 769
 770         ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, /*bytes*/2);
 771
 772         /* On all PCI adapters, we allow SCB paging */
 773         ahc->flags |= AHC_PAGESCBS;
 774
 775         error = ahc_softc_init(ahc);
 776         if (error != 0)
 777                 return (error);
 778
 779         /*
 780          * Disable PCI parity error checking.  Users typically
 781          * do this to work around broken PCI chipsets that get
 782          * the parity timing wrong and thus generate lots of spurious
 783          * errors.  The chip only allows us to disable *all* parity
 784          * error reporting when doing this, so CIO bus, scb ram, and
 785          * scratch ram parity errors will be ignored too.
 786          */
 787         if ((ahc->flags & AHC_DISABLE_PCI_PERR) != 0)
 788                 ahc->seqctl |= FAILDIS;
 789
 790         ahc->bus_intr = ahc_pci_intr;
 791         ahc->bus_chip_init = ahc_pci_chip_init;
 792
 793         /* Remeber how the card was setup in case there is no SEEPROM */
 794         if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) {
 795                 ahc_pause(ahc);
 796                 if ((ahc->features & AHC_ULTRA2) != 0)
 797                         our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
 798                 else
 799                         our_id = ahc_inb(ahc, SCSIID) & OID;
 800                 sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
 801                 scsiseq = ahc_inb(ahc, SCSISEQ);
 802         } else {
 803                 sxfrctl1 = STPWEN;
 804                 our_id = 7;
 805                 scsiseq = 0;
 806         }
 807
 808         error = ahc_reset(ahc, /*reinit*/FALSE);
 809         if (error != 0)
 810                 return (ENXIO);
 811
 812         if ((ahc->features & AHC_DT) != 0) {
 813                 u_int sfunct;
 814
 815                 /* Perform ALT-Mode Setup */
 816                 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
 817                 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
 818                 ahc_outb(ahc, OPTIONMODE,
 819                          OPTIONMODE_DEFAULTS|AUTOACKEN|BUSFREEREV|EXPPHASEDIS);
 820                 ahc_outb(ahc, SFUNCT, sfunct);
 821
 822                 /* Normal mode setup */
 823                 ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
 824                                           |TARGCRCENDEN);
 825         }
 826
 827         dscommand0 = ahc_inb(ahc, DSCOMMAND0);
 828         dscommand0 |= MPARCKEN|CACHETHEN;
 829         if ((ahc->features & AHC_ULTRA2) != 0) {
 830
 831                 /*
 832                  * DPARCKEN doesn't work correctly on
 833                  * some MBs so don't use it.
 834                  */
 835                 dscommand0 &= ~DPARCKEN;
 836         }
 837
 838         /*
 839          * Handle chips that must have cache line
 840          * streaming (dis/en)abled.
 841          */
 842         if ((ahc->bugs & AHC_CACHETHEN_DIS_BUG) != 0)
 843                 dscommand0 |= CACHETHEN;
 844
 845         if ((ahc->bugs & AHC_CACHETHEN_BUG) != 0)
 846                 dscommand0 &= ~CACHETHEN;
 847
 848         ahc_outb(ahc, DSCOMMAND0, dscommand0);
 849
 850         ahc->pci_cachesize =
 851             ahc_pci_read_config(ahc->dev_softc, CSIZE_LATTIME,
 852                                 /*bytes*/1) & CACHESIZE;
 853         ahc->pci_cachesize *= 4;
 854
 855         if ((ahc->bugs & AHC_PCI_2_1_RETRY_BUG) != 0
 856          && ahc->pci_cachesize == 4) {
 857
 858                 ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
 859                                      0, /*bytes*/1);
 860                 ahc->pci_cachesize = 0;
 861         }
 862
 863         /*
 864          * We cannot perform ULTRA speeds without the presense
 865          * of the external precision resistor.
 866          */
 867         if ((ahc->features & AHC_ULTRA) != 0) {
 868                 uint32_t devconfig;
 869
 870                 devconfig = ahc_pci_read_config(ahc->dev_softc,
 871                                                 DEVCONFIG, /*bytes*/4);
 872                 if ((devconfig & REXTVALID) == 0)
 873                         ahc->features &= ~AHC_ULTRA;
 874         }
 875
 876         /* See if we have a SEEPROM and perform auto-term */
 877         check_extport(ahc, &sxfrctl1);
 878
 879         /*
 880          * Take the LED out of diagnostic mode
 881          */
 882         sblkctl = ahc_inb(ahc, SBLKCTL);
 883         ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
 884
 885         if ((ahc->features & AHC_ULTRA2) != 0) {
 886                 ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MAX|WR_DFTHRSH_MAX);
 887         } else {
 888                 ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
 889         }
 890
 891         if (ahc->flags & AHC_USEDEFAULTS) {
 892                 /*
 893                  * PCI Adapter default setup
 894                  * Should only be used if the adapter does not have
 895                  * a SEEPROM.
 896                  */
 897                 /* See if someone else set us up already */
 898                 if ((ahc->flags & AHC_NO_BIOS_INIT) == 0
 899                  && scsiseq != 0) {
 900                         printf("%s: Using left over BIOS settings\n",
 901                                 ahc_name(ahc));
 902                         ahc->flags &= ~AHC_USEDEFAULTS;
 903                         ahc->flags |= AHC_BIOS_ENABLED;
 904                 } else {
 905                         /*
 906                          * Assume only one connector and always turn
 907                          * on termination.
 908                          */
 909                         our_id = 0x07;
 910                         sxfrctl1 = STPWEN;
 911                 }
 912                 ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
 913
 914                 ahc->our_id = our_id;
 915         }
 916
 917         /*
 918          * Take a look to see if we have external SRAM.
 919          * We currently do not attempt to use SRAM that is
 920          * shared among multiple controllers.
 921          */
 922         ahc_probe_ext_scbram(ahc);
 923
 924         /*
 925          * Record our termination setting for the
 926          * generic initialization routine.
 927          */
 928         if ((sxfrctl1 & STPWEN) != 0)
 929                 ahc->flags |= AHC_TERM_ENB_A;
 930
 931         /*
 932          * Save chip register configuration data for chip resets
 933          * that occur during runtime and resume events.
 934          */
 935         ahc->bus_softc.pci_softc.devconfig =
 936             ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
 937         ahc->bus_softc.pci_softc.command =
 938             ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1);
 939         ahc->bus_softc.pci_softc.csize_lattime =
 940             ahc_pci_read_config(ahc->dev_softc, CSIZE_LATTIME, /*bytes*/1);
 941         ahc->bus_softc.pci_softc.dscommand0 = ahc_inb(ahc, DSCOMMAND0);
 942         ahc->bus_softc.pci_softc.dspcistatus = ahc_inb(ahc, DSPCISTATUS);
 943         if ((ahc->features & AHC_DT) != 0) {
 944                 u_int sfunct;
 945
 946                 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
 947                 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
 948                 ahc->bus_softc.pci_softc.optionmode = ahc_inb(ahc, OPTIONMODE);
 949                 ahc->bus_softc.pci_softc.targcrccnt = ahc_inw(ahc, TARGCRCCNT);
 950                 ahc_outb(ahc, SFUNCT, sfunct);
 951                 ahc->bus_softc.pci_softc.crccontrol1 =
 952                     ahc_inb(ahc, CRCCONTROL1);
 953         }
 954         if ((ahc->features & AHC_MULTI_FUNC) != 0)
 955                 ahc->bus_softc.pci_softc.scbbaddr = ahc_inb(ahc, SCBBADDR);
 956
 957         if ((ahc->features & AHC_ULTRA2) != 0)
 958                 ahc->bus_softc.pci_softc.dff_thrsh = ahc_inb(ahc, DFF_THRSH);
 959
 960         /* Core initialization */
 961         error = ahc_init(ahc);
 962         if (error != 0)
 963                 return (error);
 964
 965         /*
 966          * Allow interrupts now that we are completely setup.
 967          */
 968         error = ahc_pci_map_int(ahc);
 969         if (error != 0)
 970                 return (error);
 971
 972         ahc->init_level++;
 973         return (0);
 974 }
 975
 976 /*
 977  * Test for the presense of external sram in an
 978  * "unshared" configuration.
 979  */
 980 static int
 981 ahc_ext_scbram_present(struct ahc_softc *ahc)
 982 {
 983         u_int chip;
 984         int ramps;
 985         int single_user;
 986         uint32_t devconfig;
 987
 988         chip = ahc->chip & AHC_CHIPID_MASK;
 989         devconfig = ahc_pci_read_config(ahc->dev_softc,
 990                                         DEVCONFIG, /*bytes*/4);
 991         single_user = (devconfig & MPORTMODE) != 0;
 992
 993         if ((ahc->features & AHC_ULTRA2) != 0)
 994                 ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
 995         else if (chip == AHC_AIC7895 || chip == AHC_AIC7895C)
 996                 /*
 997                  * External SCBRAM arbitration is flakey
 998                  * on these chips.  Unfortunately this means
 999                  * we don't use the extra SCB ram space on the
1000                  * 3940AUW.
1001                  */
1002                 ramps = 0;
1003         else if (chip >= AHC_AIC7870)
1004                 ramps = (devconfig & RAMPSM) != 0;
1005         else
1006                 ramps = 0;
1007
1008         if (ramps && single_user)
1009                 return (1);
1010         return (0);
1011 }
1012
1013 /*
1014  * Enable external scbram.
1015  */
1016 static void
1017 ahc_scbram_config(struct ahc_softc *ahc, int enable, int pcheck,
1018                   int fast, int large)
1019 {
1020         uint32_t devconfig;
1021
1022         if (ahc->features & AHC_MULTI_FUNC) {
1023                 /*
1024                  * Set the SCB Base addr (highest address bit)
1025                  * depending on which channel we are.
1026                  */
1027                 ahc_outb(ahc, SCBBADDR, ahc_get_pci_function(ahc->dev_softc));
1028         }
1029
1030         ahc->flags &= ~AHC_LSCBS_ENABLED;
1031         if (large)
1032                 ahc->flags |= AHC_LSCBS_ENABLED;
1033         devconfig = ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
1034         if ((ahc->features & AHC_ULTRA2) != 0) {
1035                 u_int dscommand0;
1036
1037                 dscommand0 = ahc_inb(ahc, DSCOMMAND0);
1038                 if (enable)
1039                         dscommand0 &= ~INTSCBRAMSEL;
1040                 else
1041                         dscommand0 |= INTSCBRAMSEL;
1042                 if (large)
1043                         dscommand0 &= ~USCBSIZE32;
1044                 else
1045                         dscommand0 |= USCBSIZE32;
1046                 ahc_outb(ahc, DSCOMMAND0, dscommand0);
1047         } else {
1048                 if (fast)
1049                         devconfig &= ~EXTSCBTIME;
1050                 else
1051                         devconfig |= EXTSCBTIME;
1052                 if (enable)
1053                         devconfig &= ~SCBRAMSEL;
1054                 else
1055                         devconfig |= SCBRAMSEL;
1056                 if (large)
1057                         devconfig &= ~SCBSIZE32;
1058                 else
1059                         devconfig |= SCBSIZE32;
1060         }
1061         if (pcheck)
1062                 devconfig |= EXTSCBPEN;
1063         else
1064                 devconfig &= ~EXTSCBPEN;
1065
1066         ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
1067 }
1068
1069 /*
1070  * Take a look to see if we have external SRAM.
1071  * We currently do not attempt to use SRAM that is
1072  * shared among multiple controllers.
1073  */
1074 static void
1075 ahc_probe_ext_scbram(struct ahc_softc *ahc)
1076 {
1077         int num_scbs;
1078         int test_num_scbs;
1079         int enable;
1080         int pcheck;
1081         int fast;
1082         int large;
1083
1084         enable = FALSE;
1085         pcheck = FALSE;
1086         fast = FALSE;
1087         large = FALSE;
1088         num_scbs = 0;
1089
1090         if (ahc_ext_scbram_present(ahc) == 0)
1091                 goto done;
1092
1093         /*
1094          * Probe for the best parameters to use.
1095          */
1096         ahc_scbram_config(ahc, /*enable*/TRUE, pcheck, fast, large);
1097         num_scbs = ahc_probe_scbs(ahc);
1098         if (num_scbs == 0) {
1099                 /* The SRAM wasn't really present. */
1100                 goto done;
1101         }
1102         enable = TRUE;
1103
1104         /*
1105          * Clear any outstanding parity error
1106          * and ensure that parity error reporting
1107          * is enabled.
1108          */
1109         ahc_outb(ahc, SEQCTL, 0);
1110         ahc_outb(ahc, CLRINT, CLRPARERR);
1111         ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1112
1113         /* Now see if we can do parity */
1114         ahc_scbram_config(ahc, enable, /*pcheck*/TRUE, fast, large);
1115         num_scbs = ahc_probe_scbs(ahc);
1116         if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
1117          || (ahc_inb(ahc, ERROR) & MPARERR) == 0)
1118                 pcheck = TRUE;
1119
1120         /* Clear any resulting parity error */
1121         ahc_outb(ahc, CLRINT, CLRPARERR);
1122         ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1123
1124         /* Now see if we can do fast timing */
1125         ahc_scbram_config(ahc, enable, pcheck, /*fast*/TRUE, large);
1126         test_num_scbs = ahc_probe_scbs(ahc);
1127         if (test_num_scbs == num_scbs
1128          && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
1129           || (ahc_inb(ahc, ERROR) & MPARERR) == 0))
1130                 fast = TRUE;
1131
1132         /*
1133          * See if we can use large SCBs and still maintain
1134          * the same overall count of SCBs.
1135          */
1136         if ((ahc->features & AHC_LARGE_SCBS) != 0) {
1137                 ahc_scbram_config(ahc, enable, pcheck, fast, /*large*/TRUE);
1138                 test_num_scbs = ahc_probe_scbs(ahc);
1139                 if (test_num_scbs >= num_scbs) {
1140                         large = TRUE;
1141                         num_scbs = test_num_scbs;
1142                         if (num_scbs >= 64) {
1143                                 /*
1144                                  * We have enough space to move the
1145                                  * "busy targets table" into SCB space
1146                                  * and make it qualify all the way to the
1147                                  * lun level.
1148                                  */
1149                                 ahc->flags |= AHC_SCB_BTT;
1150                         }
1151                 }
1152         }
1153 done:
1154         /*
1155          * Disable parity error reporting until we
1156          * can load instruction ram.
1157          */
1158         ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
1159         /* Clear any latched parity error */
1160         ahc_outb(ahc, CLRINT, CLRPARERR);
1161         ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1162         if (bootverbose && enable) {
1163                 printf("%s: External SRAM, %s access%s, %dbytes/SCB\n",
1164                        ahc_name(ahc), fast ? "fast" : "slow",
1165                        pcheck ? ", parity checking enabled" : "",
1166                        large ? 64 : 32);
1167         }
1168         ahc_scbram_config(ahc, enable, pcheck, fast, large);
1169 }
1170
1171 /*
1172  * Perform some simple tests that should catch situations where
1173  * our registers are invalidly mapped.
1174  */
1175 int
1176 ahc_pci_test_register_access(struct ahc_softc *ahc)
1177 {
1178         int      error;
1179         u_int    status1;
1180         uint32_t cmd;
1181         uint8_t  hcntrl;
1182
1183         error = EIO;
1184
1185         /*
1186          * Enable PCI error interrupt status, but suppress NMIs
1187          * generated by SERR raised due to target aborts.
1188          */
1189         cmd = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
1190         ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
1191                              cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);
1192
1193         /*
1194          * First a simple test to see if any
1195          * registers can be read.  Reading
1196          * HCNTRL has no side effects and has
1197          * at least one bit that is guaranteed to
1198          * be zero so it is a good register to
1199          * use for this test.
1200          */
1201         hcntrl = ahc_inb(ahc, HCNTRL);
1202
1203         if (hcntrl == 0xFF)
1204                 goto fail;
1205
1206         if ((hcntrl & CHIPRST) != 0) {
1207                 /*
1208                  * The chip has not been initialized since
1209                  * PCI/EISA/VLB bus reset.  Don't trust
1210                  * "left over BIOS data".
1211                  */
1212                 ahc->flags |= AHC_NO_BIOS_INIT;
1213         }
1214
1215         /*
1216          * Next create a situation where write combining
1217          * or read prefetching could be initiated by the
1218          * CPU or host bridge.  Our device does not support
1219          * either, so look for data corruption and/or flagged
1220          * PCI errors.  First pause without causing another
1221          * chip reset.
1222          */
1223         hcntrl &= ~CHIPRST;
1224         ahc_outb(ahc, HCNTRL, hcntrl|PAUSE);
1225         while (ahc_is_paused(ahc) == 0)
1226                 ;
1227
1228         /* Clear any PCI errors that occurred before our driver attached. */
1229         status1 = ahc_pci_read_config(ahc->dev_softc,
1230                                       PCIR_STATUS + 1, /*bytes*/1);
1231         ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
1232                              status1, /*bytes*/1);
1233         ahc_outb(ahc, CLRINT, CLRPARERR);
1234
1235         ahc_outb(ahc, SEQCTL, PERRORDIS);
1236         ahc_outb(ahc, SCBPTR, 0);
1237         ahc_outl(ahc, SCB_BASE, 0x5aa555aa);
1238         if (ahc_inl(ahc, SCB_BASE) != 0x5aa555aa)
1239                 goto fail;
1240
1241         status1 = ahc_pci_read_config(ahc->dev_softc,
1242                                       PCIR_STATUS + 1, /*bytes*/1);
1243         if ((status1 & STA) != 0)
1244                 goto fail;
1245
1246         error = 0;
1247
1248 fail:
1249         /* Silently clear any latched errors. */
1250         status1 = ahc_pci_read_config(ahc->dev_softc,
1251                                       PCIR_STATUS + 1, /*bytes*/1);
1252         ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
1253                              status1, /*bytes*/1);
1254         ahc_outb(ahc, CLRINT, CLRPARERR);
1255         ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
1256         ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
1257         return (error);
1258 }
1259
1260 /*
1261  * Check the external port logic for a serial eeprom
1262  * and termination/cable detection contrls.
1263  */
1264 static void
1265 check_extport(struct ahc_softc *ahc, u_int *sxfrctl1)
1266 {
1267         struct  seeprom_descriptor sd;
1268         struct  seeprom_config *sc;
1269         int     have_seeprom;
1270         int     have_autoterm;
1271
1272         sd.sd_ahc = ahc;
1273         sd.sd_control_offset = SEECTL;
1274         sd.sd_status_offset = SEECTL;
1275         sd.sd_dataout_offset = SEECTL;
1276         sc = ahc->seep_config;
1277
1278         /*
1279          * For some multi-channel devices, the c46 is simply too
1280          * small to work.  For the other controller types, we can
1281          * get our information from either SEEPROM type.  Set the
1282          * type to start our probe with accordingly.
1283          */
1284         if (ahc->flags & AHC_LARGE_SEEPROM)
1285                 sd.sd_chip = C56_66;
1286         else
1287                 sd.sd_chip = C46;
1288
1289         sd.sd_MS = SEEMS;
1290         sd.sd_RDY = SEERDY;
1291         sd.sd_CS = SEECS;
1292         sd.sd_CK = SEECK;
1293         sd.sd_DO = SEEDO;
1294         sd.sd_DI = SEEDI;
1295
1296         have_seeprom = ahc_acquire_seeprom(ahc, &sd);
1297         if (have_seeprom) {
1298
1299                 if (bootverbose)
1300                         printf("%s: Reading SEEPROM...", ahc_name(ahc));
1301
1302                 for (;;) {
1303                         u_int start_addr;
1304
1305                         start_addr = 32 * (ahc->channel - 'A');
1306
1307                         have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
1308                                                         start_addr,
1309                                                         sizeof(*sc)/2);
1310
1311                         if (have_seeprom)
1312                                 have_seeprom = ahc_verify_cksum(sc);
1313
1314                         if (have_seeprom != 0 || sd.sd_chip == C56_66) {
1315                                 if (bootverbose) {
1316                                         if (have_seeprom == 0)
1317                                                 printf ("checksum error\n");
1318                                         else
1319                                                 printf ("done.\n");
1320                                 }
1321                                 break;
1322                         }
1323                         sd.sd_chip = C56_66;
1324                 }
1325                 ahc_release_seeprom(&sd);
1326
1327                 /* Remember the SEEPROM type for later */
1328                 if (sd.sd_chip == C56_66)
1329                         ahc->flags |= AHC_LARGE_SEEPROM;
1330         }
1331
1332         if (!have_seeprom) {
1333                 /*
1334                  * Pull scratch ram settings and treat them as
1335                  * if they are the contents of an seeprom if
1336                  * the 'ADPT' signature is found in SCB2.
1337                  * We manually compose the data as 16bit values
1338                  * to avoid endian issues.
1339                  */
1340                 ahc_outb(ahc, SCBPTR, 2);
1341                 if (ahc_inb(ahc, SCB_BASE) == 'A'
1342                  && ahc_inb(ahc, SCB_BASE + 1) == 'D'
1343                  && ahc_inb(ahc, SCB_BASE + 2) == 'P'
1344                  && ahc_inb(ahc, SCB_BASE + 3) == 'T') {
1345                         uint16_t *sc_data;
1346                         int       i;
1347
1348                         sc_data = (uint16_t *)sc;
1349                         for (i = 0; i < 32; i++, sc_data++) {
1350                                 int     j;
1351
1352                                 j = i * 2;
1353                                 *sc_data = ahc_inb(ahc, SRAM_BASE + j)
1354                                          | ahc_inb(ahc, SRAM_BASE + j + 1) << 8;
1355                         }
1356                         have_seeprom = ahc_verify_cksum(sc);
1357                         if (have_seeprom)
1358                                 ahc->flags |= AHC_SCB_CONFIG_USED;
1359                 }
1360                 /*
1361                  * Clear any SCB parity errors in case this data and
1362                  * its associated parity was not initialized by the BIOS
1363                  */
1364                 ahc_outb(ahc, CLRINT, CLRPARERR);
1365                 ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1366         }
1367
1368         if (!have_seeprom) {
1369                 if (bootverbose)
1370                         printf("%s: No SEEPROM available.\n", ahc_name(ahc));
1371                 ahc->flags |= AHC_USEDEFAULTS;
1372                 free(ahc->seep_config, M_DEVBUF);
1373                 ahc->seep_config = NULL;
1374                 sc = NULL;
1375         } else {
1376                 ahc_parse_pci_eeprom(ahc, sc);
1377         }
1378
1379         /*
1380          * Cards that have the external logic necessary to talk to
1381          * a SEEPROM, are almost certain to have the remaining logic
1382          * necessary for auto-termination control.  This assumption
1383          * hasn't failed yet...
1384          */
1385         have_autoterm = have_seeprom;
1386
1387         /*
1388          * Some low-cost chips have SEEPROM and auto-term control built
1389          * in, instead of using a GAL.  They can tell us directly
1390          * if the termination logic is enabled.
1391          */
1392         if ((ahc->features & AHC_SPIOCAP) != 0) {
1393                 if ((ahc_inb(ahc, SPIOCAP) & SSPIOCPS) == 0)
1394                         have_autoterm = FALSE;
1395         }
1396
1397         if (have_autoterm) {
1398                 ahc->flags |= AHC_HAS_TERM_LOGIC;
1399                 ahc_acquire_seeprom(ahc, &sd);
1400                 configure_termination(ahc, &sd, sc->adapter_control, sxfrctl1);
1401                 ahc_release_seeprom(&sd);
1402         } else if (have_seeprom) {
1403                 *sxfrctl1 &= ~STPWEN;
1404                 if ((sc->adapter_control & CFSTERM) != 0)
1405                         *sxfrctl1 |= STPWEN;
1406                 if (bootverbose)
1407                         printf("%s: Low byte termination %sabled\n",
1408                                ahc_name(ahc),
1409                                (*sxfrctl1 & STPWEN) ? "en" : "dis");
1410         }
1411 }
1412
1413 static void
1414 ahc_parse_pci_eeprom(struct ahc_softc *ahc, struct seeprom_config *sc)
1415 {
1416         /*
1417          * Put the data we've collected down into SRAM
1418          * where ahc_init will find it.
1419          */
1420         int      i;
1421         int      max_targ = sc->max_targets & CFMAXTARG;
1422         u_int    scsi_conf;
1423         uint16_t discenable;
1424         uint16_t ultraenb;
1425
1426         discenable = 0;
1427         ultraenb = 0;
1428         if ((sc->adapter_control & CFULTRAEN) != 0) {
1429                 /*
1430                  * Determine if this adapter has a "newstyle"
1431                  * SEEPROM format.
1432                  */
1433                 for (i = 0; i < max_targ; i++) {
1434                         if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0) {
1435                                 ahc->flags |= AHC_NEWEEPROM_FMT;
1436                                 break;
1437                         }
1438                 }
1439         }
1440
1441         for (i = 0; i < max_targ; i++) {
1442                 u_int     scsirate;
1443                 uint16_t target_mask;
1444
1445                 target_mask = 0x01 << i;
1446                 if (sc->device_flags[i] & CFDISC)
1447                         discenable |= target_mask;
1448                 if ((ahc->flags & AHC_NEWEEPROM_FMT) != 0) {
1449                         if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0)
1450                                 ultraenb |= target_mask;
1451                 } else if ((sc->adapter_control & CFULTRAEN) != 0) {
1452                         ultraenb |= target_mask;
1453                 }
1454                 if ((sc->device_flags[i] & CFXFER) == 0x04
1455                  && (ultraenb & target_mask) != 0) {
1456                         /* Treat 10MHz as a non-ultra speed */
1457                         sc->device_flags[i] &= ~CFXFER;
1458                         ultraenb &= ~target_mask;
1459                 }
1460                 if ((ahc->features & AHC_ULTRA2) != 0) {
1461                         u_int offset;
1462
1463                         if (sc->device_flags[i] & CFSYNCH)
1464                                 offset = MAX_OFFSET_ULTRA2;
1465                         else
1466                                 offset = 0;
1467                         ahc_outb(ahc, TARG_OFFSET + i, offset);
1468
1469                         /*
1470                          * The ultra enable bits contain the
1471                          * high bit of the ultra2 sync rate
1472                          * field.
1473                          */
1474                         scsirate = (sc->device_flags[i] & CFXFER)
1475                                  | ((ultraenb & target_mask) ? 0x8 : 0x0);
1476                         if (sc->device_flags[i] & CFWIDEB)
1477                                 scsirate |= WIDEXFER;
1478                 } else {
1479                         scsirate = (sc->device_flags[i] & CFXFER) << 4;
1480                         if (sc->device_flags[i] & CFSYNCH)
1481                                 scsirate |= SOFS;
1482                         if (sc->device_flags[i] & CFWIDEB)
1483                                 scsirate |= WIDEXFER;
1484                 }
1485                 ahc_outb(ahc, TARG_SCSIRATE + i, scsirate);
1486         }
1487         ahc->our_id = sc->brtime_id & CFSCSIID;
1488
1489         scsi_conf = (ahc->our_id & 0x7);
1490         if (sc->adapter_control & CFSPARITY)
1491                 scsi_conf |= ENSPCHK;
1492         if (sc->adapter_control & CFRESETB)
1493                 scsi_conf |= RESET_SCSI;
1494
1495         ahc->flags |= (sc->adapter_control & CFBOOTCHAN) >> CFBOOTCHANSHIFT;
1496
1497         if (sc->bios_control & CFEXTEND)
1498                 ahc->flags |= AHC_EXTENDED_TRANS_A;
1499
1500         if (sc->bios_control & CFBIOSEN)
1501                 ahc->flags |= AHC_BIOS_ENABLED;
1502         if (ahc->features & AHC_ULTRA
1503          && (ahc->flags & AHC_NEWEEPROM_FMT) == 0) {
1504                 /* Should we enable Ultra mode? */
1505                 if (!(sc->adapter_control & CFULTRAEN))
1506                         /* Treat us as a non-ultra card */
1507                         ultraenb = 0;
1508         }
1509
1510         if (sc->signature == CFSIGNATURE
1511          || sc->signature == CFSIGNATURE2) {
1512                 uint32_t devconfig;
1513
1514                 /* Honor the STPWLEVEL settings */
1515                 devconfig = ahc_pci_read_config(ahc->dev_softc,
1516                                                 DEVCONFIG, /*bytes*/4);
1517                 devconfig &= ~STPWLEVEL;
1518                 if ((sc->bios_control & CFSTPWLEVEL) != 0)
1519                         devconfig |= STPWLEVEL;
1520                 ahc_pci_write_config(ahc->dev_softc, DEVCONFIG,
1521                                      devconfig, /*bytes*/4);
1522         }
1523         /* Set SCSICONF info */
1524         ahc_outb(ahc, SCSICONF, scsi_conf);
1525         ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
1526         ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
1527         ahc_outb(ahc, ULTRA_ENB, ultraenb & 0xff);
1528         ahc_outb(ahc, ULTRA_ENB + 1, (ultraenb >> 8) & 0xff);
1529 }
1530
1531 static void
1532 configure_termination(struct ahc_softc *ahc,
1533                       struct seeprom_descriptor *sd,
1534                       u_int adapter_control,
1535                       u_int *sxfrctl1)
1536 {
1537         uint8_t brddat;
1538
1539         brddat = 0;
1540
1541         /*
1542          * Update the settings in sxfrctl1 to match the
1543          * termination settings
1544          */
1545         *sxfrctl1 = 0;
1546
1547         /*
1548          * SEECS must be on for the GALS to latch
1549          * the data properly.  Be sure to leave MS
1550          * on or we will release the seeprom.
1551          */
1552         SEEPROM_OUTB(sd, sd->sd_MS | sd->sd_CS);
1553         if ((adapter_control & CFAUTOTERM) != 0
1554          || (ahc->features & AHC_NEW_TERMCTL) != 0) {
1555                 int internal50_present;
1556                 int internal68_present;
1557                 int externalcable_present;
1558                 int eeprom_present;
1559                 int enableSEC_low;
1560                 int enableSEC_high;
1561                 int enablePRI_low;
1562                 int enablePRI_high;
1563                 int sum;
1564
1565                 enableSEC_low = 0;
1566                 enableSEC_high = 0;
1567                 enablePRI_low = 0;
1568                 enablePRI_high = 0;
1569                 if ((ahc->features & AHC_NEW_TERMCTL) != 0) {
1570                         ahc_new_term_detect(ahc, &enableSEC_low,
1571                                             &enableSEC_high,
1572                                             &enablePRI_low,
1573                                             &enablePRI_high,
1574                                             &eeprom_present);
1575                         if ((adapter_control & CFSEAUTOTERM) == 0) {
1576                                 if (bootverbose)
1577                                         printf("%s: Manual SE Termination\n",
1578                                                ahc_name(ahc));
1579                                 enableSEC_low = (adapter_control & CFSELOWTERM);
1580                                 enableSEC_high =
1581                                     (adapter_control & CFSEHIGHTERM);
1582                         }
1583                         if ((adapter_control & CFAUTOTERM) == 0) {
1584                                 if (bootverbose)
1585                                         printf("%s: Manual LVD Termination\n",
1586                                                ahc_name(ahc));
1587                                 enablePRI_low = (adapter_control & CFSTERM);
1588                                 enablePRI_high = (adapter_control & CFWSTERM);
1589                         }
1590                         /* Make the table calculations below happy */
1591                         internal50_present = 0;
1592                         internal68_present = 1;
1593                         externalcable_present = 1;
1594                 } else if ((ahc->features & AHC_SPIOCAP) != 0) {
1595                         aic785X_cable_detect(ahc, &internal50_present,
1596                                              &externalcable_present,
1597                                              &eeprom_present);
1598                         /* Can never support a wide connector. */
1599                         internal68_present = 0;
1600                 } else {
1601                         aic787X_cable_detect(ahc, &internal50_present,
1602                                              &internal68_present,
1603                                              &externalcable_present,
1604                                              &eeprom_present);
1605                 }
1606
1607                 if ((ahc->features & AHC_WIDE) == 0)
1608                         internal68_present = 0;
1609
1610                 if (bootverbose
1611                  && (ahc->features & AHC_ULTRA2) == 0) {
1612                         printf("%s: internal 50 cable %s present",
1613                                ahc_name(ahc),
1614                                internal50_present ? "is":"not");
1615
1616                         if ((ahc->features & AHC_WIDE) != 0)
1617                                 printf(", internal 68 cable %s present",
1618                                        internal68_present ? "is":"not");
1619                         printf("\n%s: external cable %s present\n",
1620                                ahc_name(ahc),
1621                                externalcable_present ? "is":"not");
1622                 }
1623                 if (bootverbose)
1624                         printf("%s: BIOS eeprom %s present\n",
1625                                ahc_name(ahc), eeprom_present ? "is" : "not");
1626
1627                 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) {
1628                         /*
1629                          * The 50 pin connector is a separate bus,
1630                          * so force it to always be terminated.
1631                          * In the future, perform current sensing
1632                          * to determine if we are in the middle of
1633                          * a properly terminated bus.
1634                          */
1635                         internal50_present = 0;
1636                 }
1637
1638                 /*
1639                  * Now set the termination based on what
1640                  * we found.
1641                  * Flash Enable = BRDDAT7
1642                  * Secondary High Term Enable = BRDDAT6
1643                  * Secondary Low Term Enable = BRDDAT5 (7890)
1644                  * Primary High Term Enable = BRDDAT4 (7890)
1645                  */
1646                 if ((ahc->features & AHC_ULTRA2) == 0
1647                  && (internal50_present != 0)
1648                  && (internal68_present != 0)
1649                  && (externalcable_present != 0)) {
1650                         printf("%s: Illegal cable configuration!!. "
1651                                "Only two connectors on the "
1652                                "adapter may be used at a "
1653                                "time!\n", ahc_name(ahc));
1654
1655                         /*
1656                          * Pretend there are no cables in the hope
1657                          * that having all of the termination on
1658                          * gives us a more stable bus.
1659                          */
1660                         internal50_present = 0;
1661                         internal68_present = 0;
1662                         externalcable_present = 0;
1663                 }
1664
1665                 if ((ahc->features & AHC_WIDE) != 0
1666                  && ((externalcable_present == 0)
1667                   || (internal68_present == 0)
1668                   || (enableSEC_high != 0))) {
1669                         brddat |= BRDDAT6;
1670                         if (bootverbose) {
1671                                 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
1672                                         printf("%s: 68 pin termination "
1673                                                "Enabled\n", ahc_name(ahc));
1674                                 else
1675                                         printf("%s: %sHigh byte termination "
1676                                                "Enabled\n", ahc_name(ahc),
1677                                                enableSEC_high ? "Secondary "
1678                                                               : "");
1679                         }
1680                 }
1681
1682                 sum = internal50_present + internal68_present
1683                     + externalcable_present;
1684                 if (sum < 2 || (enableSEC_low != 0)) {
1685                         if ((ahc->features & AHC_ULTRA2) != 0)
1686                                 brddat |= BRDDAT5;
1687                         else
1688                                 *sxfrctl1 |= STPWEN;
1689                         if (bootverbose) {
1690                                 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
1691                                         printf("%s: 50 pin termination "
1692                                                "Enabled\n", ahc_name(ahc));
1693                                 else
1694                                         printf("%s: %sLow byte termination "
1695                                                "Enabled\n", ahc_name(ahc),
1696                                                enableSEC_low ? "Secondary "
1697                                                              : "");
1698                         }
1699                 }
1700
1701                 if (enablePRI_low != 0) {
1702                         *sxfrctl1 |= STPWEN;
1703                         if (bootverbose)
1704                                 printf("%s: Primary Low Byte termination "
1705                                        "Enabled\n", ahc_name(ahc));
1706                 }
1707
1708                 /*
1709                  * Setup STPWEN before setting up the rest of
1710                  * the termination per the tech note on the U160 cards.
1711                  */
1712                 ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
1713
1714                 if (enablePRI_high != 0) {
1715                         brddat |= BRDDAT4;
1716                         if (bootverbose)
1717                                 printf("%s: Primary High Byte "
1718                                        "termination Enabled\n",
1719                                        ahc_name(ahc));
1720                 }
1721
1722                 write_brdctl(ahc, brddat);
1723
1724         } else {
1725                 if ((adapter_control & CFSTERM) != 0) {
1726                         *sxfrctl1 |= STPWEN;
1727
1728                         if (bootverbose)
1729                                 printf("%s: %sLow byte termination Enabled\n",
1730                                        ahc_name(ahc),
1731                                        (ahc->features & AHC_ULTRA2) ? "Primary "
1732                                                                     : "");
1733                 }
1734
1735                 if ((adapter_control & CFWSTERM) != 0
1736                  && (ahc->features & AHC_WIDE) != 0) {
1737                         brddat |= BRDDAT6;
1738                         if (bootverbose)
1739                                 printf("%s: %sHigh byte termination Enabled\n",
1740                                        ahc_name(ahc),
1741                                        (ahc->features & AHC_ULTRA2)
1742                                      ? "Secondary " : "");
1743                 }
1744
1745                 /*
1746                  * Setup STPWEN before setting up the rest of
1747                  * the termination per the tech note on the U160 cards.
1748                  */
1749                 ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
1750
1751                 if ((ahc->features & AHC_WIDE) != 0)
1752                         write_brdctl(ahc, brddat);
1753         }
1754         SEEPROM_OUTB(sd, sd->sd_MS); /* Clear CS */
1755 }
1756
1757 static void
1758 ahc_new_term_detect(struct ahc_softc *ahc, int *enableSEC_low,
1759                     int *enableSEC_high, int *enablePRI_low,
1760                     int *enablePRI_high, int *eeprom_present)
1761 {
1762         uint8_t brdctl;
1763
1764         /*
1765          * BRDDAT7 = Eeprom
1766          * BRDDAT6 = Enable Secondary High Byte termination
1767          * BRDDAT5 = Enable Secondary Low Byte termination
1768          * BRDDAT4 = Enable Primary high byte termination
1769          * BRDDAT3 = Enable Primary low byte termination
1770          */
1771         brdctl = read_brdctl(ahc);
1772         *eeprom_present = brdctl & BRDDAT7;
1773         *enableSEC_high = (brdctl & BRDDAT6);
1774         *enableSEC_low = (brdctl & BRDDAT5);
1775         *enablePRI_high = (brdctl & BRDDAT4);
1776         *enablePRI_low = (brdctl & BRDDAT3);
1777 }
1778
1779 static void
1780 aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
1781                      int *internal68_present, int *externalcable_present,
1782                      int *eeprom_present)
1783 {
1784         uint8_t brdctl;
1785
1786         /*
1787          * First read the status of our cables.
1788          * Set the rom bank to 0 since the
1789          * bank setting serves as a multiplexor
1790          * for the cable detection logic.
1791          * BRDDAT5 controls the bank switch.
1792          */
1793         write_brdctl(ahc, 0);
1794
1795         /*
1796          * Now read the state of the internal
1797          * connectors.  BRDDAT6 is INT50 and
1798          * BRDDAT7 is INT68.
1799          */
1800         brdctl = read_brdctl(ahc);
1801         *internal50_present = (brdctl & BRDDAT6) ? 0 : 1;
1802         *internal68_present = (brdctl & BRDDAT7) ? 0 : 1;
1803
1804         /*
1805          * Set the rom bank to 1 and determine
1806          * the other signals.
1807          */
1808         write_brdctl(ahc, BRDDAT5);
1809
1810         /*
1811          * Now read the state of the external
1812          * connectors.  BRDDAT6 is EXT68 and
1813          * BRDDAT7 is EPROMPS.
1814          */
1815         brdctl = read_brdctl(ahc);
1816         *externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
1817         *eeprom_present = (brdctl & BRDDAT7) ? 1 : 0;
1818 }
1819
1820 static void
1821 aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
1822                      int *externalcable_present, int *eeprom_present)
1823 {
1824         uint8_t brdctl;
1825         uint8_t spiocap;
1826
1827         spiocap = ahc_inb(ahc, SPIOCAP);
1828         spiocap &= ~SOFTCMDEN;
1829         spiocap |= EXT_BRDCTL;
1830         ahc_outb(ahc, SPIOCAP, spiocap);
1831         ahc_outb(ahc, BRDCTL, BRDRW|BRDCS);
1832         ahc_flush_device_writes(ahc);
1833         ahc_delay(500);
1834         ahc_outb(ahc, BRDCTL, 0);
1835         ahc_flush_device_writes(ahc);
1836         ahc_delay(500);
1837         brdctl = ahc_inb(ahc, BRDCTL);
1838         *internal50_present = (brdctl & BRDDAT5) ? 0 : 1;
1839         *externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
1840         *eeprom_present = (ahc_inb(ahc, SPIOCAP) & EEPROM) ? 1 : 0;
1841 }
1842
1843 int
1844 ahc_acquire_seeprom(struct ahc_softc *ahc, struct seeprom_descriptor *sd)
1845 {
1846         int wait;
1847
1848         if ((ahc->features & AHC_SPIOCAP) != 0
1849          && (ahc_inb(ahc, SPIOCAP) & SEEPROM) == 0)
1850                 return (0);
1851
1852         /*
1853          * Request access of the memory port.  When access is
1854          * granted, SEERDY will go high.  We use a 1 second
1855          * timeout which should be near 1 second more than
1856          * is needed.  Reason: after the chip reset, there
1857          * should be no contention.
1858          */
1859         SEEPROM_OUTB(sd, sd->sd_MS);
1860         wait = 1000;  /* 1 second timeout in msec */
1861         while (--wait && ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0)) {
1862                 ahc_delay(1000);  /* delay 1 msec */
1863         }
1864         if ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0) {
1865                 SEEPROM_OUTB(sd, 0);
1866                 return (0);
1867         }
1868         return(1);
1869 }
1870
1871 void
1872 ahc_release_seeprom(struct seeprom_descriptor *sd)
1873 {
1874         /* Release access to the memory port and the serial EEPROM. */
1875         SEEPROM_OUTB(sd, 0);
1876 }
1877
1878 static void
1879 write_brdctl(struct ahc_softc *ahc, uint8_t value)
1880 {
1881         uint8_t brdctl;
1882
1883         if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
1884                 brdctl = BRDSTB;
1885                 if (ahc->channel == 'B')
1886                         brdctl |= BRDCS;
1887         } else if ((ahc->features & AHC_ULTRA2) != 0) {
1888                 brdctl = 0;
1889         } else {
1890                 brdctl = BRDSTB|BRDCS;
1891         }
1892         ahc_outb(ahc, BRDCTL, brdctl);
1893         ahc_flush_device_writes(ahc);
1894         brdctl |= value;
1895         ahc_outb(ahc, BRDCTL, brdctl);
1896         ahc_flush_device_writes(ahc);
1897         if ((ahc->features & AHC_ULTRA2) != 0)
1898                 brdctl |= BRDSTB_ULTRA2;
1899         else
1900                 brdctl &= ~BRDSTB;
1901         ahc_outb(ahc, BRDCTL, brdctl);
1902         ahc_flush_device_writes(ahc);
1903         if ((ahc->features & AHC_ULTRA2) != 0)
1904                 brdctl = 0;
1905         else
1906                 brdctl &= ~BRDCS;
1907         ahc_outb(ahc, BRDCTL, brdctl);
1908 }
1909
1910 static uint8_t
1911 read_brdctl(struct ahc_softc *ahc)
1912 {
1913         uint8_t brdctl;
1914         uint8_t value;
1915
1916         if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
1917                 brdctl = BRDRW;
1918                 if (ahc->channel == 'B')
1919                         brdctl |= BRDCS;
1920         } else if ((ahc->features & AHC_ULTRA2) != 0) {
1921                 brdctl = BRDRW_ULTRA2;
1922         } else {
1923                 brdctl = BRDRW|BRDCS;
1924         }
1925         ahc_outb(ahc, BRDCTL, brdctl);
1926         ahc_flush_device_writes(ahc);
1927         value = ahc_inb(ahc, BRDCTL);
1928         ahc_outb(ahc, BRDCTL, 0);
1929         return (value);
1930 }
1931
1932 static void
1933 ahc_pci_intr(struct ahc_softc *ahc)
1934 {
1935         u_int error;
1936         u_int status1;
1937
1938         error = ahc_inb(ahc, ERROR);
1939         if ((error & PCIERRSTAT) == 0)
1940                 return;
1941
1942         status1 = ahc_pci_read_config(ahc->dev_softc,
1943                                       PCIR_STATUS + 1, /*bytes*/1);
1944
1945         printf("%s: PCI error Interrupt at seqaddr = 0x%x\n",
1946               ahc_name(ahc),
1947               ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8));
1948
1949         if (status1 & DPE) {
1950                 ahc->pci_target_perr_count++;
1951                 printf("%s: Data Parity Error Detected during address "
1952                        "or write data phase\n", ahc_name(ahc));
1953         }
1954         if (status1 & SSE) {
1955                 printf("%s: Signal System Error Detected\n", ahc_name(ahc));
1956         }
1957         if (status1 & RMA) {
1958                 printf("%s: Received a Master Abort\n", ahc_name(ahc));
1959         }
1960         if (status1 & RTA) {
1961                 printf("%s: Received a Target Abort\n", ahc_name(ahc));
1962         }
1963         if (status1 & STA) {
1964                 printf("%s: Signaled a Target Abort\n", ahc_name(ahc));
1965         }
1966         if (status1 & DPR) {
1967                 printf("%s: Data Parity Error has been reported via PERR#\n",
1968                        ahc_name(ahc));
1969         }
1970
1971         /* Clear latched errors. */
1972         ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
1973                              status1, /*bytes*/1);
1974
1975         if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
1976                 printf("%s: Latched PCIERR interrupt with "
1977                        "no status bits set\n", ahc_name(ahc));
1978         } else {
1979                 ahc_outb(ahc, CLRINT, CLRPARERR);
1980         }
1981
1982         if (ahc->pci_target_perr_count > AHC_PCI_TARGET_PERR_THRESH) {
1983                 printf(
1984 "%s: WARNING WARNING WARNING WARNING\n"
1985 "%s: Too many PCI parity errors observed as a target.\n"
1986 "%s: Some device on this bus is generating bad parity.\n"
1987 "%s: This is an error *observed by*, not *generated by*, this controller.\n"
1988 "%s: PCI parity error checking has been disabled.\n"
1989 "%s: WARNING WARNING WARNING WARNING\n",
1990                        ahc_name(ahc), ahc_name(ahc), ahc_name(ahc),
1991                        ahc_name(ahc), ahc_name(ahc), ahc_name(ahc));
1992                 ahc->seqctl |= FAILDIS;
1993                 ahc_outb(ahc, SEQCTL, ahc->seqctl);
1994         }
1995         ahc_unpause(ahc);
1996 }
1997
1998 static int
1999 ahc_pci_chip_init(struct ahc_softc *ahc)
2000 {
2001         ahc_outb(ahc, DSCOMMAND0, ahc->bus_softc.pci_softc.dscommand0);
2002         ahc_outb(ahc, DSPCISTATUS, ahc->bus_softc.pci_softc.dspcistatus);
2003         if ((ahc->features & AHC_DT) != 0) {
2004                 u_int sfunct;
2005
2006                 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
2007                 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
2008                 ahc_outb(ahc, OPTIONMODE, ahc->bus_softc.pci_softc.optionmode);
2009                 ahc_outw(ahc, TARGCRCCNT, ahc->bus_softc.pci_softc.targcrccnt);
2010                 ahc_outb(ahc, SFUNCT, sfunct);
2011                 ahc_outb(ahc, CRCCONTROL1,
2012                          ahc->bus_softc.pci_softc.crccontrol1);
2013         }
2014         if ((ahc->features & AHC_MULTI_FUNC) != 0)
2015                 ahc_outb(ahc, SCBBADDR, ahc->bus_softc.pci_softc.scbbaddr);
2016
2017         if ((ahc->features & AHC_ULTRA2) != 0)
2018                 ahc_outb(ahc, DFF_THRSH, ahc->bus_softc.pci_softc.dff_thrsh);
2019
2020         return (ahc_chip_init(ahc));
2021 }
2022
2023 #ifdef CONFIG_PM
2024 void
2025 ahc_pci_resume(struct ahc_softc *ahc)
2026 {
2027         /*
2028          * We assume that the OS has restored our register
2029          * mappings, etc.  Just update the config space registers
2030          * that the OS doesn't know about and rely on our chip
2031          * reset handler to handle the rest.
2032          */
2033         ahc_pci_write_config(ahc->dev_softc, DEVCONFIG,
2034                              ahc->bus_softc.pci_softc.devconfig, /*bytes*/4);
2035         ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
2036                              ahc->bus_softc.pci_softc.command, /*bytes*/1);
2037         ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
2038                              ahc->bus_softc.pci_softc.csize_lattime, /*bytes*/1);
2039         if ((ahc->flags & AHC_HAS_TERM_LOGIC) != 0) {
2040                 struct  seeprom_descriptor sd;
2041                 u_int   sxfrctl1;
2042
2043                 sd.sd_ahc = ahc;
2044                 sd.sd_control_offset = SEECTL;
2045                 sd.sd_status_offset = SEECTL;
2046                 sd.sd_dataout_offset = SEECTL;
2047
2048                 ahc_acquire_seeprom(ahc, &sd);
2049                 configure_termination(ahc, &sd,
2050                                       ahc->seep_config->adapter_control,
2051                                       &sxfrctl1);
2052                 ahc_release_seeprom(&sd);
2053         }
2054 }
2055 #endif
2056
2057 static int
2058 ahc_aic785X_setup(struct ahc_softc *ahc)
2059 {
2060         ahc_dev_softc_t pci;
2061         uint8_t rev;
2062
2063         pci = ahc->dev_softc;
2064         ahc->channel = 'A';
2065         ahc->chip = AHC_AIC7850;
2066         ahc->features = AHC_AIC7850_FE;
2067         ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
2068         rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2069         if (rev >= 1)
2070                 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
2071         ahc->instruction_ram_size = 512;
2072         return (0);
2073 }
2074
2075 static int
2076 ahc_aic7860_setup(struct ahc_softc *ahc)
2077 {
2078         ahc_dev_softc_t pci;
2079         uint8_t rev;
2080
2081         pci = ahc->dev_softc;
2082         ahc->channel = 'A';
2083         ahc->chip = AHC_AIC7860;
2084         ahc->features = AHC_AIC7860_FE;
2085         ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
2086         rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2087         if (rev >= 1)
2088                 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
2089         ahc->instruction_ram_size = 512;
2090         return (0);
2091 }
2092
2093 static int
2094 ahc_apa1480_setup(struct ahc_softc *ahc)
2095 {
2096         int error;
2097
2098         error = ahc_aic7860_setup(ahc);
2099         if (error != 0)
2100                 return (error);
2101         ahc->features |= AHC_REMOVABLE;
2102         return (0);
2103 }
2104
2105 static int
2106 ahc_aic7870_setup(struct ahc_softc *ahc)
2107 {
2108
2109         ahc->channel = 'A';
2110         ahc->chip = AHC_AIC7870;
2111         ahc->features = AHC_AIC7870_FE;
2112         ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
2113         ahc->instruction_ram_size = 512;
2114         return (0);
2115 }
2116
2117 static int
2118 ahc_aic7870h_setup(struct ahc_softc *ahc)
2119 {
2120         int error = ahc_aic7870_setup(ahc);
2121
2122         ahc->features |= AHC_HVD;
2123
2124         return error;
2125 }
2126
2127 static int
2128 ahc_aha394X_setup(struct ahc_softc *ahc)
2129 {
2130         int error;
2131
2132         error = ahc_aic7870_setup(ahc);
2133         if (error == 0)
2134                 error = ahc_aha394XX_setup(ahc);
2135         return (error);
2136 }
2137
2138 static int
2139 ahc_aha394Xh_setup(struct ahc_softc *ahc)
2140 {
2141         int error = ahc_aha394X_setup(ahc);
2142
2143         ahc->features |= AHC_HVD;
2144
2145         return error;
2146 }
2147
2148 static int
2149 ahc_aha398X_setup(struct ahc_softc *ahc)
2150 {
2151         int error;
2152
2153         error = ahc_aic7870_setup(ahc);
2154         if (error == 0)
2155                 error = ahc_aha398XX_setup(ahc);
2156         return (error);
2157 }
2158
2159 static int
2160 ahc_aha494X_setup(struct ahc_softc *ahc)
2161 {
2162         int error;
2163
2164         error = ahc_aic7870_setup(ahc);
2165         if (error == 0)
2166                 error = ahc_aha494XX_setup(ahc);
2167         return (error);
2168 }
2169
2170 static int
2171 ahc_aha494Xh_setup(struct ahc_softc *ahc)
2172 {
2173         int error = ahc_aha494X_setup(ahc);
2174
2175         ahc->features |= AHC_HVD;
2176
2177         return error;
2178 }
2179
2180 static int
2181 ahc_aic7880_setup(struct ahc_softc *ahc)
2182 {
2183         ahc_dev_softc_t pci;
2184         uint8_t rev;
2185
2186         pci = ahc->dev_softc;
2187         ahc->channel = 'A';
2188         ahc->chip = AHC_AIC7880;
2189         ahc->features = AHC_AIC7880_FE;
2190         ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
2191         rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2192         if (rev >= 1) {
2193                 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
2194         } else {
2195                 ahc->bugs |= AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
2196         }
2197         ahc->instruction_ram_size = 512;
2198         return (0);
2199 }
2200
2201 static int
2202 ahc_aic7880h_setup(struct ahc_softc *ahc)
2203 {
2204         int error = ahc_aic7880_setup(ahc);
2205
2206         ahc->features |= AHC_HVD;
2207
2208         return error;
2209 }
2210
2211
2212 static int
2213 ahc_aha2940Pro_setup(struct ahc_softc *ahc)
2214 {
2215
2216         ahc->flags |= AHC_INT50_SPEEDFLEX;
2217         return (ahc_aic7880_setup(ahc));
2218 }
2219
2220 static int
2221 ahc_aha394XU_setup(struct ahc_softc *ahc)
2222 {
2223         int error;
2224
2225         error = ahc_aic7880_setup(ahc);
2226         if (error == 0)
2227                 error = ahc_aha394XX_setup(ahc);
2228         return (error);
2229 }
2230
2231 static int
2232 ahc_aha394XUh_setup(struct ahc_softc *ahc)
2233 {
2234         int error = ahc_aha394XU_setup(ahc);
2235
2236         ahc->features |= AHC_HVD;
2237
2238         return error;
2239 }
2240
2241 static int
2242 ahc_aha398XU_setup(struct ahc_softc *ahc)
2243 {
2244         int error;
2245
2246         error = ahc_aic7880_setup(ahc);
2247         if (error == 0)
2248                 error = ahc_aha398XX_setup(ahc);
2249         return (error);
2250 }
2251
2252 static int
2253 ahc_aic7890_setup(struct ahc_softc *ahc)
2254 {
2255         ahc_dev_softc_t pci;
2256         uint8_t rev;
2257
2258         pci = ahc->dev_softc;
2259         ahc->channel = 'A';
2260         ahc->chip = AHC_AIC7890;
2261         ahc->features = AHC_AIC7890_FE;
2262         ahc->flags |= AHC_NEWEEPROM_FMT;
2263         rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2264         if (rev == 0)
2265                 ahc->bugs |= AHC_AUTOFLUSH_BUG|AHC_CACHETHEN_BUG;
2266         ahc->instruction_ram_size = 768;
2267         return (0);
2268 }
2269
2270 static int
2271 ahc_aic7892_setup(struct ahc_softc *ahc)
2272 {
2273
2274         ahc->channel = 'A';
2275         ahc->chip = AHC_AIC7892;
2276         ahc->features = AHC_AIC7892_FE;
2277         ahc->flags |= AHC_NEWEEPROM_FMT;
2278         ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
2279         ahc->instruction_ram_size = 1024;
2280         return (0);
2281 }
2282
2283 static int
2284 ahc_aic7895_setup(struct ahc_softc *ahc)
2285 {
2286         ahc_dev_softc_t pci;
2287         uint8_t rev;
2288
2289         pci = ahc->dev_softc;
2290         ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A';
2291         /*
2292          * The 'C' revision of the aic7895 has a few additional features.
2293          */
2294         rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2295         if (rev >= 4) {
2296                 ahc->chip = AHC_AIC7895C;
2297                 ahc->features = AHC_AIC7895C_FE;
2298         } else  {
2299                 u_int command;
2300
2301                 ahc->chip = AHC_AIC7895;
2302                 ahc->features = AHC_AIC7895_FE;
2303
2304                 /*
2305                  * The BIOS disables the use of MWI transactions
2306                  * since it does not have the MWI bug work around
2307                  * we have.  Disabling MWI reduces performance, so
2308                  * turn it on again.
2309                  */
2310                 command = ahc_pci_read_config(pci, PCIR_COMMAND, /*bytes*/1);
2311                 command |= PCIM_CMD_MWRICEN;
2312                 ahc_pci_write_config(pci, PCIR_COMMAND, command, /*bytes*/1);
2313                 ahc->bugs |= AHC_PCI_MWI_BUG;
2314         }
2315         /*
2316          * XXX Does CACHETHEN really not work???  What about PCI retry?
2317          * on C level chips.  Need to test, but for now, play it safe.
2318          */
2319         ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_PCI_2_1_RETRY_BUG
2320                   |  AHC_CACHETHEN_BUG;
2321
2322 #if 0
2323         uint32_t devconfig;
2324
2325         /*
2326          * Cachesize must also be zero due to stray DAC
2327          * problem when sitting behind some bridges.
2328          */
2329         ahc_pci_write_config(pci, CSIZE_LATTIME, 0, /*bytes*/1);
2330         devconfig = ahc_pci_read_config(pci, DEVCONFIG, /*bytes*/1);
2331         devconfig |= MRDCEN;
2332         ahc_pci_write_config(pci, DEVCONFIG, devconfig, /*bytes*/1);
2333 #endif
2334         ahc->flags |= AHC_NEWEEPROM_FMT;
2335         ahc->instruction_ram_size = 512;
2336         return (0);
2337 }
2338
2339 static int
2340 ahc_aic7895h_setup(struct ahc_softc *ahc)
2341 {
2342         int error = ahc_aic7895_setup(ahc);
2343
2344         ahc->features |= AHC_HVD;
2345
2346         return error;
2347 }
2348
2349 static int
2350 ahc_aic7896_setup(struct ahc_softc *ahc)
2351 {
2352         ahc_dev_softc_t pci;
2353
2354         pci = ahc->dev_softc;
2355         ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A';
2356         ahc->chip = AHC_AIC7896;
2357         ahc->features = AHC_AIC7896_FE;
2358         ahc->flags |= AHC_NEWEEPROM_FMT;
2359         ahc->bugs |= AHC_CACHETHEN_DIS_BUG;
2360         ahc->instruction_ram_size = 768;
2361         return (0);
2362 }
2363
2364 static int
2365 ahc_aic7899_setup(struct ahc_softc *ahc)
2366 {
2367         ahc_dev_softc_t pci;
2368
2369         pci = ahc->dev_softc;
2370         ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A';
2371         ahc->chip = AHC_AIC7899;
2372         ahc->features = AHC_AIC7899_FE;
2373         ahc->flags |= AHC_NEWEEPROM_FMT;
2374         ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
2375         ahc->instruction_ram_size = 1024;
2376         return (0);
2377 }
2378
2379 static int
2380 ahc_aha29160C_setup(struct ahc_softc *ahc)
2381 {
2382         int error;
2383
2384         error = ahc_aic7899_setup(ahc);
2385         if (error != 0)
2386                 return (error);
2387         ahc->features |= AHC_REMOVABLE;
2388         return (0);
2389 }
2390
2391 static int
2392 ahc_raid_setup(struct ahc_softc *ahc)
2393 {
2394         printf("RAID functionality unsupported\n");
2395         return (ENXIO);
2396 }
2397
2398 static int
2399 ahc_aha394XX_setup(struct ahc_softc *ahc)
2400 {
2401         ahc_dev_softc_t pci;
2402
2403         pci = ahc->dev_softc;
2404         switch (ahc_get_pci_slot(pci)) {
2405         case AHC_394X_SLOT_CHANNEL_A:
2406                 ahc->channel = 'A';
2407                 break;
2408         case AHC_394X_SLOT_CHANNEL_B:
2409                 ahc->channel = 'B';
2410                 break;
2411         default:
2412                 printf("adapter at unexpected slot %d\n"
2413                        "unable to map to a channel\n",
2414                        ahc_get_pci_slot(pci));
2415                 ahc->channel = 'A';
2416         }
2417         return (0);
2418 }
2419
2420 static int
2421 ahc_aha398XX_setup(struct ahc_softc *ahc)
2422 {
2423         ahc_dev_softc_t pci;
2424
2425         pci = ahc->dev_softc;
2426         switch (ahc_get_pci_slot(pci)) {
2427         case AHC_398X_SLOT_CHANNEL_A:
2428                 ahc->channel = 'A';
2429                 break;
2430         case AHC_398X_SLOT_CHANNEL_B:
2431                 ahc->channel = 'B';
2432                 break;
2433         case AHC_398X_SLOT_CHANNEL_C:
2434                 ahc->channel = 'C';
2435                 break;
2436         default:
2437                 printf("adapter at unexpected slot %d\n"
2438                        "unable to map to a channel\n",
2439                        ahc_get_pci_slot(pci));
2440                 ahc->channel = 'A';
2441                 break;
2442         }
2443         ahc->flags |= AHC_LARGE_SEEPROM;
2444         return (0);
2445 }
2446
2447 static int
2448 ahc_aha494XX_setup(struct ahc_softc *ahc)
2449 {
2450         ahc_dev_softc_t pci;
2451
2452         pci = ahc->dev_softc;
2453         switch (ahc_get_pci_slot(pci)) {
2454         case AHC_494X_SLOT_CHANNEL_A:
2455                 ahc->channel = 'A';
2456                 break;
2457         case AHC_494X_SLOT_CHANNEL_B:
2458                 ahc->channel = 'B';
2459                 break;
2460         case AHC_494X_SLOT_CHANNEL_C:
2461                 ahc->channel = 'C';
2462                 break;
2463         case AHC_494X_SLOT_CHANNEL_D:
2464                 ahc->channel = 'D';
2465                 break;
2466         default:
2467                 printf("adapter at unexpected slot %d\n"
2468                        "unable to map to a channel\n",
2469                        ahc_get_pci_slot(pci));
2470                 ahc->channel = 'A';
2471         }
2472         ahc->flags |= AHC_LARGE_SEEPROM;
2473         return (0);
2474 }