The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/dev/aic7xxx/aic7xxx_pci.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    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#78 $
   43  */
   44 
   45 #ifdef __linux__
   46 #include "aic7xxx_osm.h"
   47 #include "aic7xxx_inline.h"
   48 #include "aic7xxx_93cx6.h"
   49 #else
   50 #include <sys/cdefs.h>
   51 __FBSDID("$FreeBSD: releng/8.4/sys/dev/aic7xxx/aic7xxx_pci.c 168807 2007-04-17 06:26:25Z scottl $");
   52 #include <dev/aic7xxx/aic7xxx_osm.h>
   53 #include <dev/aic7xxx/aic7xxx_inline.h>
   54 #include <dev/aic7xxx/aic7xxx_93cx6.h>
   55 #endif
   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 ID_ALL_MASK                     0xFFFFFFFFFFFFFFFFull
   71 #define ID_DEV_VENDOR_MASK              0xFFFFFFFF00000000ull
   72 #define ID_9005_GENERIC_MASK            0xFFF0FFFF00000000ull
   73 #define ID_9005_SISL_MASK               0x000FFFFF00000000ull
   74 #define ID_9005_SISL_ID                 0x0005900500000000ull
   75 #define ID_AIC7850                      0x5078900400000000ull
   76 #define ID_AHA_2902_04_10_15_20C_30C    0x5078900478509004ull
   77 #define ID_AIC7855                      0x5578900400000000ull
   78 #define ID_AIC7859                      0x3860900400000000ull
   79 #define ID_AHA_2930CU                   0x3860900438699004ull
   80 #define ID_AIC7860                      0x6078900400000000ull
   81 #define ID_AIC7860C                     0x6078900478609004ull
   82 #define ID_AHA_1480A                    0x6075900400000000ull
   83 #define ID_AHA_2940AU_0                 0x6178900400000000ull
   84 #define ID_AHA_2940AU_1                 0x6178900478619004ull
   85 #define ID_AHA_2940AU_CN                0x2178900478219004ull
   86 #define ID_AHA_2930C_VAR                0x6038900438689004ull
   87 
   88 #define ID_AIC7870                      0x7078900400000000ull
   89 #define ID_AHA_2940                     0x7178900400000000ull
   90 #define ID_AHA_3940                     0x7278900400000000ull
   91 #define ID_AHA_398X                     0x7378900400000000ull
   92 #define ID_AHA_2944                     0x7478900400000000ull
   93 #define ID_AHA_3944                     0x7578900400000000ull
   94 #define ID_AHA_4944                     0x7678900400000000ull
   95 
   96 #define ID_AIC7880                      0x8078900400000000ull
   97 #define ID_AIC7880_B                    0x8078900478809004ull
   98 #define ID_AHA_2940U                    0x8178900400000000ull
   99 #define ID_AHA_3940U                    0x8278900400000000ull
  100 #define ID_AHA_2944U                    0x8478900400000000ull
  101 #define ID_AHA_3944U                    0x8578900400000000ull
  102 #define ID_AHA_398XU                    0x8378900400000000ull
  103 #define ID_AHA_4944U                    0x8678900400000000ull
  104 #define ID_AHA_2940UB                   0x8178900478819004ull
  105 #define ID_AHA_2930U                    0x8878900478889004ull
  106 #define ID_AHA_2940U_PRO                0x8778900478879004ull
  107 #define ID_AHA_2940U_CN                 0x0078900478009004ull
  108 
  109 #define ID_AIC7895                      0x7895900478959004ull
  110 #define ID_AIC7895_ARO                  0x7890900478939004ull
  111 #define ID_AIC7895_ARO_MASK             0xFFF0FFFFFFFFFFFFull
  112 #define ID_AHA_2940U_DUAL               0x7895900478919004ull
  113 #define ID_AHA_3940AU                   0x7895900478929004ull
  114 #define ID_AHA_3944AU                   0x7895900478949004ull
  115 
  116 #define ID_AIC7890                      0x001F9005000F9005ull
  117 #define ID_AIC7890_ARO                  0x00139005000F9005ull
  118 #define ID_AAA_131U2                    0x0013900500039005ull
  119 #define ID_AHA_2930U2                   0x0011900501819005ull
  120 #define ID_AHA_2940U2B                  0x00109005A1009005ull
  121 #define ID_AHA_2940U2_OEM               0x0010900521809005ull
  122 #define ID_AHA_2940U2                   0x00109005A1809005ull
  123 #define ID_AHA_2950U2B                  0x00109005E1009005ull
  124 
  125 #define ID_AIC7892                      0x008F9005FFFF9005ull
  126 #define ID_AIC7892_ARO                  0x00839005FFFF9005ull
  127 #define ID_AHA_29160                    0x00809005E2A09005ull
  128 #define ID_AHA_29160_CPQ                0x00809005E2A00E11ull
  129 #define ID_AHA_29160N                   0x0080900562A09005ull
  130 #define ID_AHA_29160C                   0x0080900562209005ull
  131 #define ID_AHA_29160B                   0x00809005E2209005ull
  132 #define ID_AHA_19160B                   0x0081900562A19005ull
  133 #define ID_AHA_2915_30LP                0x0082900502109005ull
  134 
  135 #define ID_AIC7896                      0x005F9005FFFF9005ull
  136 #define ID_AIC7896_ARO                  0x00539005FFFF9005ull
  137 #define ID_AHA_3950U2B_0                0x00509005FFFF9005ull
  138 #define ID_AHA_3950U2B_1                0x00509005F5009005ull
  139 #define ID_AHA_3950U2D_0                0x00519005FFFF9005ull
  140 #define ID_AHA_3950U2D_1                0x00519005B5009005ull
  141 
  142 #define ID_AIC7899                      0x00CF9005FFFF9005ull
  143 #define ID_AIC7899_ARO                  0x00C39005FFFF9005ull
  144 #define ID_AHA_3960D                    0x00C09005F6209005ull
  145 #define ID_AHA_3960D_CPQ                0x00C09005F6200E11ull
  146 
  147 #define ID_AIC7810                      0x1078900400000000ull
  148 #define ID_AIC7815                      0x7815900400000000ull
  149 
  150 #define DEVID_9005_TYPE(id) ((id) & 0xF)
  151 #define         DEVID_9005_TYPE_HBA             0x0     /* Standard Card */
  152 #define         DEVID_9005_TYPE_AAA             0x3     /* RAID Card */
  153 #define         DEVID_9005_TYPE_SISL            0x5     /* Container ROMB */
  154 #define         DEVID_9005_TYPE_MB              0xF     /* On Motherboard */
  155 
  156 #define DEVID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
  157 #define         DEVID_9005_MAXRATE_U160         0x0
  158 #define         DEVID_9005_MAXRATE_ULTRA2       0x1
  159 #define         DEVID_9005_MAXRATE_ULTRA        0x2
  160 #define         DEVID_9005_MAXRATE_FAST         0x3
  161 
  162 #define DEVID_9005_MFUNC(id) (((id) & 0x40) >> 6)
  163 
  164 #define DEVID_9005_CLASS(id) (((id) & 0xFF00) >> 8)
  165 #define         DEVID_9005_CLASS_SPI            0x0     /* Parallel SCSI */
  166 
  167 #define SUBID_9005_TYPE(id) ((id) & 0xF)
  168 #define         SUBID_9005_TYPE_MB              0xF     /* On Motherboard */
  169 #define         SUBID_9005_TYPE_CARD            0x0     /* Standard Card */
  170 #define         SUBID_9005_TYPE_LCCARD          0x1     /* Low Cost Card */
  171 #define         SUBID_9005_TYPE_RAID            0x3     /* Combined with Raid */
  172 
  173 #define SUBID_9005_TYPE_KNOWN(id)                       \
  174           ((((id) & 0xF) == SUBID_9005_TYPE_MB)         \
  175         || (((id) & 0xF) == SUBID_9005_TYPE_CARD)       \
  176         || (((id) & 0xF) == SUBID_9005_TYPE_LCCARD)     \
  177         || (((id) & 0xF) == SUBID_9005_TYPE_RAID))
  178 
  179 #define SUBID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
  180 #define         SUBID_9005_MAXRATE_ULTRA2       0x0
  181 #define         SUBID_9005_MAXRATE_ULTRA        0x1
  182 #define         SUBID_9005_MAXRATE_U160         0x2
  183 #define         SUBID_9005_MAXRATE_RESERVED     0x3
  184 
  185 #define SUBID_9005_SEEPTYPE(id)                                         \
  186         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
  187          ? ((id) & 0xC0) >> 6                                           \
  188          : ((id) & 0x300) >> 8)
  189 #define         SUBID_9005_SEEPTYPE_NONE        0x0
  190 #define         SUBID_9005_SEEPTYPE_1K          0x1
  191 #define         SUBID_9005_SEEPTYPE_2K_4K       0x2
  192 #define         SUBID_9005_SEEPTYPE_RESERVED    0x3
  193 #define SUBID_9005_AUTOTERM(id)                                         \
  194         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
  195          ? (((id) & 0x400) >> 10) == 0                                  \
  196          : (((id) & 0x40) >> 6) == 0)
  197 
  198 #define SUBID_9005_NUMCHAN(id)                                          \
  199         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
  200          ? ((id) & 0x300) >> 8                                          \
  201          : ((id) & 0xC00) >> 10)
  202 
  203 #define SUBID_9005_LEGACYCONN(id)                                       \
  204         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
  205          ? 0                                                            \
  206          : ((id) & 0x80) >> 7)
  207 
  208 #define SUBID_9005_MFUNCENB(id)                                         \
  209         ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)                    \
  210          ? ((id) & 0x800) >> 11                                         \
  211          : ((id) & 0x1000) >> 12)
  212 /*
  213  * Informational only. Should use chip register to be
  214  * certain, but may be use in identification strings.
  215  */
  216 #define SUBID_9005_CARD_SCSIWIDTH_MASK  0x2000
  217 #define SUBID_9005_CARD_PCIWIDTH_MASK   0x4000
  218 #define SUBID_9005_CARD_SEDIFF_MASK     0x8000
  219 
  220 static ahc_device_setup_t ahc_aic785X_setup;
  221 static ahc_device_setup_t ahc_aic7860_setup;
  222 static ahc_device_setup_t ahc_apa1480_setup;
  223 static ahc_device_setup_t ahc_aic7870_setup;
  224 static ahc_device_setup_t ahc_aha394X_setup;
  225 static ahc_device_setup_t ahc_aha494X_setup;
  226 static ahc_device_setup_t ahc_aha398X_setup;
  227 static ahc_device_setup_t ahc_aic7880_setup;
  228 static ahc_device_setup_t ahc_aha2940Pro_setup;
  229 static ahc_device_setup_t ahc_aha394XU_setup;
  230 static ahc_device_setup_t ahc_aha398XU_setup;
  231 static ahc_device_setup_t ahc_aic7890_setup;
  232 static ahc_device_setup_t ahc_aic7892_setup;
  233 static ahc_device_setup_t ahc_aic7895_setup;
  234 static ahc_device_setup_t ahc_aic7896_setup;
  235 static ahc_device_setup_t ahc_aic7899_setup;
  236 static ahc_device_setup_t ahc_aha29160C_setup;
  237 static ahc_device_setup_t ahc_raid_setup;
  238 static ahc_device_setup_t ahc_aha394XX_setup;
  239 static ahc_device_setup_t ahc_aha494XX_setup;
  240 static ahc_device_setup_t ahc_aha398XX_setup;
  241 
  242 struct ahc_pci_identity ahc_pci_ident_table [] =
  243 {
  244         /* aic7850 based controllers */
  245         {
  246                 ID_AHA_2902_04_10_15_20C_30C,
  247                 ID_ALL_MASK,
  248                 "Adaptec 2902/04/10/15/20C/30C SCSI adapter",
  249                 ahc_aic785X_setup
  250         },
  251         /* aic7860 based controllers */
  252         {
  253                 ID_AHA_2930CU,
  254                 ID_ALL_MASK,
  255                 "Adaptec 2930CU SCSI adapter",
  256                 ahc_aic7860_setup
  257         },
  258         {
  259                 ID_AHA_1480A & ID_DEV_VENDOR_MASK,
  260                 ID_DEV_VENDOR_MASK,
  261                 "Adaptec 1480A Ultra SCSI adapter",
  262                 ahc_apa1480_setup
  263         },
  264         {
  265                 ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
  266                 ID_DEV_VENDOR_MASK,
  267                 "Adaptec 2940A Ultra SCSI adapter",
  268                 ahc_aic7860_setup
  269         },
  270         {
  271                 ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
  272                 ID_DEV_VENDOR_MASK,
  273                 "Adaptec 2940A/CN Ultra SCSI adapter",
  274                 ahc_aic7860_setup
  275         },
  276         {
  277                 ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
  278                 ID_DEV_VENDOR_MASK,
  279                 "Adaptec 2930C Ultra SCSI adapter (VAR)",
  280                 ahc_aic7860_setup
  281         },
  282         /* aic7870 based controllers */
  283         {
  284                 ID_AHA_2940,
  285                 ID_ALL_MASK,
  286                 "Adaptec 2940 SCSI adapter",
  287                 ahc_aic7870_setup
  288         },
  289         {
  290                 ID_AHA_3940,
  291                 ID_ALL_MASK,
  292                 "Adaptec 3940 SCSI adapter",
  293                 ahc_aha394X_setup
  294         },
  295         {
  296                 ID_AHA_398X,
  297                 ID_ALL_MASK,
  298                 "Adaptec 398X SCSI RAID adapter",
  299                 ahc_aha398X_setup
  300         },
  301         {
  302                 ID_AHA_2944,
  303                 ID_ALL_MASK,
  304                 "Adaptec 2944 SCSI adapter",
  305                 ahc_aic7870_setup
  306         },
  307         {
  308                 ID_AHA_3944,
  309                 ID_ALL_MASK,
  310                 "Adaptec 3944 SCSI adapter",
  311                 ahc_aha394X_setup
  312         },
  313         {
  314                 ID_AHA_4944,
  315                 ID_ALL_MASK,
  316                 "Adaptec 4944 SCSI adapter",
  317                 ahc_aha494X_setup
  318         },
  319         /* aic7880 based controllers */
  320         {
  321                 ID_AHA_2940U & ID_DEV_VENDOR_MASK,
  322                 ID_DEV_VENDOR_MASK,
  323                 "Adaptec 2940 Ultra SCSI adapter",
  324                 ahc_aic7880_setup
  325         },
  326         {
  327                 ID_AHA_3940U & ID_DEV_VENDOR_MASK,
  328                 ID_DEV_VENDOR_MASK,
  329                 "Adaptec 3940 Ultra SCSI adapter",
  330                 ahc_aha394XU_setup
  331         },
  332         {
  333                 ID_AHA_2944U & ID_DEV_VENDOR_MASK,
  334                 ID_DEV_VENDOR_MASK,
  335                 "Adaptec 2944 Ultra SCSI adapter",
  336                 ahc_aic7880_setup
  337         },
  338         {
  339                 ID_AHA_3944U & ID_DEV_VENDOR_MASK,
  340                 ID_DEV_VENDOR_MASK,
  341                 "Adaptec 3944 Ultra SCSI adapter",
  342                 ahc_aha394XU_setup
  343         },
  344         {
  345                 ID_AHA_398XU & ID_DEV_VENDOR_MASK,
  346                 ID_DEV_VENDOR_MASK,
  347                 "Adaptec 398X Ultra SCSI RAID adapter",
  348                 ahc_aha398XU_setup
  349         },
  350         {
  351                 /*
  352                  * XXX Don't know the slot numbers
  353                  * so we can't identify channels
  354                  */
  355                 ID_AHA_4944U & ID_DEV_VENDOR_MASK,
  356                 ID_DEV_VENDOR_MASK,
  357                 "Adaptec 4944 Ultra SCSI adapter",
  358                 ahc_aic7880_setup
  359         },
  360         {
  361                 ID_AHA_2930U & ID_DEV_VENDOR_MASK,
  362                 ID_DEV_VENDOR_MASK,
  363                 "Adaptec 2930 Ultra SCSI adapter",
  364                 ahc_aic7880_setup
  365         },
  366         {
  367                 ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
  368                 ID_DEV_VENDOR_MASK,
  369                 "Adaptec 2940 Pro Ultra SCSI adapter",
  370                 ahc_aha2940Pro_setup
  371         },
  372         {
  373                 ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
  374                 ID_DEV_VENDOR_MASK,
  375                 "Adaptec 2940/CN Ultra SCSI adapter",
  376                 ahc_aic7880_setup
  377         },
  378         /* Ignore all SISL (AAC on MB) based controllers. */
  379         {
  380                 ID_9005_SISL_ID,
  381                 ID_9005_SISL_MASK,
  382                 NULL,
  383                 NULL
  384         },
  385         /* aic7890 based controllers */
  386         {
  387                 ID_AHA_2930U2,
  388                 ID_ALL_MASK,
  389                 "Adaptec 2930 Ultra2 SCSI adapter",
  390                 ahc_aic7890_setup
  391         },
  392         {
  393                 ID_AHA_2940U2B,
  394                 ID_ALL_MASK,
  395                 "Adaptec 2940B Ultra2 SCSI adapter",
  396                 ahc_aic7890_setup
  397         },
  398         {
  399                 ID_AHA_2940U2_OEM,
  400                 ID_ALL_MASK,
  401                 "Adaptec 2940 Ultra2 SCSI adapter (OEM)",
  402                 ahc_aic7890_setup
  403         },
  404         {
  405                 ID_AHA_2940U2,
  406                 ID_ALL_MASK,
  407                 "Adaptec 2940 Ultra2 SCSI adapter",
  408                 ahc_aic7890_setup
  409         },
  410         {
  411                 ID_AHA_2950U2B,
  412                 ID_ALL_MASK,
  413                 "Adaptec 2950 Ultra2 SCSI adapter",
  414                 ahc_aic7890_setup
  415         },
  416         {
  417                 ID_AIC7890_ARO,
  418                 ID_ALL_MASK,
  419                 "Adaptec aic7890/91 Ultra2 SCSI adapter (ARO)",
  420                 ahc_aic7890_setup
  421         },
  422         {
  423                 ID_AAA_131U2,
  424                 ID_ALL_MASK,
  425                 "Adaptec AAA-131 Ultra2 RAID adapter",
  426                 ahc_aic7890_setup
  427         },
  428         /* aic7892 based controllers */
  429         {
  430                 ID_AHA_29160,
  431                 ID_ALL_MASK,
  432                 "Adaptec 29160 Ultra160 SCSI adapter",
  433                 ahc_aic7892_setup
  434         },
  435         {
  436                 ID_AHA_29160_CPQ,
  437                 ID_ALL_MASK,
  438                 "Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
  439                 ahc_aic7892_setup
  440         },
  441         {
  442                 ID_AHA_29160N,
  443                 ID_ALL_MASK,
  444                 "Adaptec 29160N Ultra160 SCSI adapter",
  445                 ahc_aic7892_setup
  446         },
  447         {
  448                 ID_AHA_29160C,
  449                 ID_ALL_MASK,
  450                 "Adaptec 29160C Ultra160 SCSI adapter",
  451                 ahc_aha29160C_setup
  452         },
  453         {
  454                 ID_AHA_29160B,
  455                 ID_ALL_MASK,
  456                 "Adaptec 29160B Ultra160 SCSI adapter",
  457                 ahc_aic7892_setup
  458         },
  459         {
  460                 ID_AHA_19160B,
  461                 ID_ALL_MASK,
  462                 "Adaptec 19160B Ultra160 SCSI adapter",
  463                 ahc_aic7892_setup
  464         },
  465         {
  466                 ID_AIC7892_ARO,
  467                 ID_ALL_MASK,
  468                 "Adaptec aic7892 Ultra160 SCSI adapter (ARO)",
  469                 ahc_aic7892_setup
  470         },
  471         {
  472                 ID_AHA_2915_30LP,
  473                 ID_ALL_MASK,
  474                 "Adaptec 2915/30LP Ultra160 SCSI adapter",
  475                 ahc_aic7892_setup
  476         },
  477         /* aic7895 based controllers */ 
  478         {
  479                 ID_AHA_2940U_DUAL,
  480                 ID_ALL_MASK,
  481                 "Adaptec 2940/DUAL Ultra SCSI adapter",
  482                 ahc_aic7895_setup
  483         },
  484         {
  485                 ID_AHA_3940AU,
  486                 ID_ALL_MASK,
  487                 "Adaptec 3940A Ultra SCSI adapter",
  488                 ahc_aic7895_setup
  489         },
  490         {
  491                 ID_AHA_3944AU,
  492                 ID_ALL_MASK,
  493                 "Adaptec 3944A Ultra SCSI adapter",
  494                 ahc_aic7895_setup
  495         },
  496         {
  497                 ID_AIC7895_ARO,
  498                 ID_AIC7895_ARO_MASK,
  499                 "Adaptec aic7895 Ultra SCSI adapter (ARO)",
  500                 ahc_aic7895_setup
  501         },
  502         /* aic7896/97 based controllers */      
  503         {
  504                 ID_AHA_3950U2B_0,
  505                 ID_ALL_MASK,
  506                 "Adaptec 3950B Ultra2 SCSI adapter",
  507                 ahc_aic7896_setup
  508         },
  509         {
  510                 ID_AHA_3950U2B_1,
  511                 ID_ALL_MASK,
  512                 "Adaptec 3950B Ultra2 SCSI adapter",
  513                 ahc_aic7896_setup
  514         },
  515         {
  516                 ID_AHA_3950U2D_0,
  517                 ID_ALL_MASK,
  518                 "Adaptec 3950D Ultra2 SCSI adapter",
  519                 ahc_aic7896_setup
  520         },
  521         {
  522                 ID_AHA_3950U2D_1,
  523                 ID_ALL_MASK,
  524                 "Adaptec 3950D Ultra2 SCSI adapter",
  525                 ahc_aic7896_setup
  526         },
  527         {
  528                 ID_AIC7896_ARO,
  529                 ID_ALL_MASK,
  530                 "Adaptec aic7896/97 Ultra2 SCSI adapter (ARO)",
  531                 ahc_aic7896_setup
  532         },
  533         /* aic7899 based controllers */ 
  534         {
  535                 ID_AHA_3960D,
  536                 ID_ALL_MASK,
  537                 "Adaptec 3960D Ultra160 SCSI adapter",
  538                 ahc_aic7899_setup
  539         },
  540         {
  541                 ID_AHA_3960D_CPQ,
  542                 ID_ALL_MASK,
  543                 "Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
  544                 ahc_aic7899_setup
  545         },
  546         {
  547                 ID_AIC7899_ARO,
  548                 ID_ALL_MASK,
  549                 "Adaptec aic7899 Ultra160 SCSI adapter (ARO)",
  550                 ahc_aic7899_setup
  551         },
  552         /* Generic chip probes for devices we don't know 'exactly' */
  553         {
  554                 ID_AIC7850 & ID_DEV_VENDOR_MASK,
  555                 ID_DEV_VENDOR_MASK,
  556                 "Adaptec aic7850 SCSI adapter",
  557                 ahc_aic785X_setup
  558         },
  559         {
  560                 ID_AIC7855 & ID_DEV_VENDOR_MASK,
  561                 ID_DEV_VENDOR_MASK,
  562                 "Adaptec aic7855 SCSI adapter",
  563                 ahc_aic785X_setup
  564         },
  565         {
  566                 ID_AIC7859 & ID_DEV_VENDOR_MASK,
  567                 ID_DEV_VENDOR_MASK,
  568                 "Adaptec aic7859 SCSI adapter",
  569                 ahc_aic7860_setup
  570         },
  571         {
  572                 ID_AIC7860 & ID_DEV_VENDOR_MASK,
  573                 ID_DEV_VENDOR_MASK,
  574                 "Adaptec aic7860 Ultra SCSI adapter",
  575                 ahc_aic7860_setup
  576         },
  577         {
  578                 ID_AIC7870 & ID_DEV_VENDOR_MASK,
  579                 ID_DEV_VENDOR_MASK,
  580                 "Adaptec aic7870 SCSI adapter",
  581                 ahc_aic7870_setup
  582         },
  583         {
  584                 ID_AIC7880 & ID_DEV_VENDOR_MASK,
  585                 ID_DEV_VENDOR_MASK,
  586                 "Adaptec aic7880 Ultra SCSI adapter",
  587                 ahc_aic7880_setup
  588         },
  589         {
  590                 ID_AIC7890 & ID_9005_GENERIC_MASK,
  591                 ID_9005_GENERIC_MASK,
  592                 "Adaptec aic7890/91 Ultra2 SCSI adapter",
  593                 ahc_aic7890_setup
  594         },
  595         {
  596                 ID_AIC7892 & ID_9005_GENERIC_MASK,
  597                 ID_9005_GENERIC_MASK,
  598                 "Adaptec aic7892 Ultra160 SCSI adapter",
  599                 ahc_aic7892_setup
  600         },
  601         {
  602                 ID_AIC7895 & ID_DEV_VENDOR_MASK,
  603                 ID_DEV_VENDOR_MASK,
  604                 "Adaptec aic7895 Ultra SCSI adapter",
  605                 ahc_aic7895_setup
  606         },
  607         {
  608                 ID_AIC7896 & ID_9005_GENERIC_MASK,
  609                 ID_9005_GENERIC_MASK,
  610                 "Adaptec aic7896/97 Ultra2 SCSI adapter",
  611                 ahc_aic7896_setup
  612         },
  613         {
  614                 ID_AIC7899 & ID_9005_GENERIC_MASK,
  615                 ID_9005_GENERIC_MASK,
  616                 "Adaptec aic7899 Ultra160 SCSI adapter",
  617                 ahc_aic7899_setup
  618         },
  619         {
  620                 ID_AIC7810 & ID_DEV_VENDOR_MASK,
  621                 ID_DEV_VENDOR_MASK,
  622                 "Adaptec aic7810 RAID memory controller",
  623                 ahc_raid_setup
  624         },
  625         {
  626                 ID_AIC7815 & ID_DEV_VENDOR_MASK,
  627                 ID_DEV_VENDOR_MASK,
  628                 "Adaptec aic7815 RAID memory controller",
  629                 ahc_raid_setup
  630         }
  631 };
  632 
  633 const u_int ahc_num_pci_devs = NUM_ELEMENTS(ahc_pci_ident_table);
  634                 
  635 #define AHC_394X_SLOT_CHANNEL_A 4
  636 #define AHC_394X_SLOT_CHANNEL_B 5
  637 
  638 #define AHC_398X_SLOT_CHANNEL_A 4
  639 #define AHC_398X_SLOT_CHANNEL_B 8
  640 #define AHC_398X_SLOT_CHANNEL_C 12
  641 
  642 #define AHC_494X_SLOT_CHANNEL_A 4
  643 #define AHC_494X_SLOT_CHANNEL_B 5
  644 #define AHC_494X_SLOT_CHANNEL_C 6
  645 #define AHC_494X_SLOT_CHANNEL_D 7
  646 
  647 #define DEVCONFIG               0x40
  648 #define         PCIERRGENDIS    0x80000000ul
  649 #define         SCBSIZE32       0x00010000ul    /* aic789X only */
  650 #define         REXTVALID       0x00001000ul    /* ultra cards only */
  651 #define         MPORTMODE       0x00000400ul    /* aic7870+ only */
  652 #define         RAMPSM          0x00000200ul    /* aic7870+ only */
  653 #define         VOLSENSE        0x00000100ul
  654 #define         PCI64BIT        0x00000080ul    /* 64Bit PCI bus (Ultra2 Only)*/
  655 #define         SCBRAMSEL       0x00000080ul
  656 #define         MRDCEN          0x00000040ul
  657 #define         EXTSCBTIME      0x00000020ul    /* aic7870 only */
  658 #define         EXTSCBPEN       0x00000010ul    /* aic7870 only */
  659 #define         BERREN          0x00000008ul
  660 #define         DACEN           0x00000004ul
  661 #define         STPWLEVEL       0x00000002ul
  662 #define         DIFACTNEGEN     0x00000001ul    /* aic7870 only */
  663 
  664 #define CSIZE_LATTIME           0x0c
  665 #define         CACHESIZE       0x0000003ful    /* only 5 bits */
  666 #define         LATTIME         0x0000ff00ul
  667 
  668 /* PCI STATUS definitions */
  669 #define DPE     0x80
  670 #define SSE     0x40
  671 #define RMA     0x20
  672 #define RTA     0x10
  673 #define STA     0x08
  674 #define DPR     0x01
  675 
  676 static int ahc_9005_subdevinfo_valid(uint16_t vendor, uint16_t device,
  677                                      uint16_t subvendor, uint16_t subdevice);
  678 static int ahc_ext_scbram_present(struct ahc_softc *ahc);
  679 static void ahc_scbram_config(struct ahc_softc *ahc, int enable,
  680                                   int pcheck, int fast, int large);
  681 static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
  682 static void check_extport(struct ahc_softc *ahc, u_int *sxfrctl1);
  683 static void ahc_parse_pci_eeprom(struct ahc_softc *ahc,
  684                                  struct seeprom_config *sc);
  685 static void configure_termination(struct ahc_softc *ahc,
  686                                   struct seeprom_descriptor *sd,
  687                                   u_int adapter_control,
  688                                   u_int *sxfrctl1);
  689 
  690 static void ahc_new_term_detect(struct ahc_softc *ahc,
  691                                 int *enableSEC_low,
  692                                 int *enableSEC_high,
  693                                 int *enablePRI_low,
  694                                 int *enablePRI_high,
  695                                 int *eeprom_present);
  696 static void aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
  697                                  int *internal68_present,
  698                                  int *externalcable_present,
  699                                  int *eeprom_present);
  700 static void aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
  701                                  int *externalcable_present,
  702                                  int *eeprom_present);
  703 static void    write_brdctl(struct ahc_softc *ahc, uint8_t value);
  704 static uint8_t read_brdctl(struct ahc_softc *ahc);
  705 static void ahc_pci_intr(struct ahc_softc *ahc);
  706 static int  ahc_pci_chip_init(struct ahc_softc *ahc);
  707 static int  ahc_pci_suspend(struct ahc_softc *ahc);
  708 static int  ahc_pci_resume(struct ahc_softc *ahc);
  709 
  710 static int
  711 ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor,
  712                           uint16_t subdevice, uint16_t subvendor)
  713 {
  714         int result;
  715 
  716         /* Default to invalid. */
  717         result = 0;
  718         if (vendor == 0x9005
  719          && subvendor == 0x9005
  720          && subdevice != device
  721          && SUBID_9005_TYPE_KNOWN(subdevice) != 0) {
  722 
  723                 switch (SUBID_9005_TYPE(subdevice)) {
  724                 case SUBID_9005_TYPE_MB:
  725                         break;
  726                 case SUBID_9005_TYPE_CARD:
  727                 case SUBID_9005_TYPE_LCCARD:
  728                         /*
  729                          * Currently only trust Adaptec cards to
  730                          * get the sub device info correct.
  731                          */
  732                         if (DEVID_9005_TYPE(device) == DEVID_9005_TYPE_HBA)
  733                                 result = 1;
  734                         break;
  735                 case SUBID_9005_TYPE_RAID:
  736                         break;
  737                 default:
  738                         break;
  739                 }
  740         }
  741         return (result);
  742 }
  743 
  744 struct ahc_pci_identity *
  745 ahc_find_pci_device(aic_dev_softc_t pci)
  746 {
  747         uint64_t  full_id;
  748         uint16_t  device;
  749         uint16_t  vendor;
  750         uint16_t  subdevice;
  751         uint16_t  subvendor;
  752         struct    ahc_pci_identity *entry;
  753         u_int     i;
  754 
  755         vendor = aic_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
  756         device = aic_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
  757         subvendor = aic_pci_read_config(pci, PCIR_SUBVEND_0, /*bytes*/2);
  758         subdevice = aic_pci_read_config(pci, PCIR_SUBDEV_0, /*bytes*/2);
  759         full_id = ahc_compose_id(device, vendor, subdevice, subvendor);
  760 
  761         /*
  762          * If the second function is not hooked up, ignore it.
  763          * Unfortunately, not all MB vendors implement the
  764          * subdevice ID as per the Adaptec spec, so do our best
  765          * to sanity check it prior to accepting the subdevice
  766          * ID as valid.
  767          */
  768         if (aic_get_pci_function(pci) > 0
  769          && ahc_9005_subdevinfo_valid(vendor, device, subvendor, subdevice)
  770          && SUBID_9005_MFUNCENB(subdevice) == 0)
  771                 return (NULL);
  772 
  773         for (i = 0; i < ahc_num_pci_devs; i++) {
  774                 entry = &ahc_pci_ident_table[i];
  775                 if (entry->full_id == (full_id & entry->id_mask)) {
  776                         /* Honor exclusion entries. */
  777                         if (entry->name == NULL)
  778                                 return (NULL);
  779                         return (entry);
  780                 }
  781         }
  782         return (NULL);
  783 }
  784 
  785 int
  786 ahc_pci_config(struct ahc_softc *ahc, struct ahc_pci_identity *entry)
  787 {
  788         u_int    command;
  789         u_int    our_id;
  790         u_int    sxfrctl1;
  791         u_int    scsiseq;
  792         u_int    dscommand0;
  793         uint32_t devconfig;
  794         int      error;
  795         uint8_t  sblkctl;
  796 
  797         our_id = 0;
  798         error = entry->setup(ahc);
  799         if (error != 0)
  800                 return (error);
  801         ahc->chip |= AHC_PCI;
  802         ahc->description = entry->name;
  803 
  804         aic_power_state_change(ahc, AIC_POWER_STATE_D0);
  805 
  806         error = ahc_pci_map_registers(ahc);
  807         if (error != 0)
  808                 return (error);
  809 
  810         /*
  811          * Before we continue probing the card, ensure that
  812          * its interrupts are *disabled*.  We don't want
  813          * a misstep to hang the machine in an interrupt
  814          * storm.
  815          */
  816         ahc_intr_enable(ahc, FALSE);
  817 
  818         devconfig = aic_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
  819 
  820         /*
  821          * If we need to support high memory, enable dual
  822          * address cycles.  This bit must be set to enable
  823          * high address bit generation even if we are on a
  824          * 64bit bus (PCI64BIT set in devconfig).
  825          */
  826         if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) {
  827 
  828                 if (bootverbose)
  829                         printf("%s: Enabling 39Bit Addressing\n",
  830                                ahc_name(ahc));
  831                 devconfig |= DACEN;
  832         }
  833         
  834         /* Ensure that pci error generation, a test feature, is disabled. */
  835         devconfig |= PCIERRGENDIS;
  836 
  837         aic_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
  838 
  839         /* Ensure busmastering is enabled */
  840         command = aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
  841         command |= PCIM_CMD_BUSMASTEREN;
  842 
  843         aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, /*bytes*/2);
  844 
  845         /* On all PCI adapters, we allow SCB paging */
  846         ahc->flags |= AHC_PAGESCBS;
  847 
  848         error = ahc_softc_init(ahc);
  849         if (error != 0)
  850                 return (error);
  851 
  852         /*
  853          * Disable PCI parity error checking.  Users typically
  854          * do this to work around broken PCI chipsets that get
  855          * the parity timing wrong and thus generate lots of spurious
  856          * errors.  The chip only allows us to disable *all* parity
  857          * error reporting when doing this, so CIO bus, scb ram, and
  858          * scratch ram parity errors will be ignored too.
  859          */
  860         if ((ahc->flags & AHC_DISABLE_PCI_PERR) != 0)
  861                 ahc->seqctl |= FAILDIS;
  862 
  863         ahc->bus_intr = ahc_pci_intr;
  864         ahc->bus_chip_init = ahc_pci_chip_init;
  865         ahc->bus_suspend = ahc_pci_suspend;
  866         ahc->bus_resume = ahc_pci_resume;
  867 
  868         /* Remeber how the card was setup in case there is no SEEPROM */
  869         if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) {
  870                 ahc_pause(ahc);
  871                 if ((ahc->features & AHC_ULTRA2) != 0)
  872                         our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
  873                 else
  874                         our_id = ahc_inb(ahc, SCSIID) & OID;
  875                 sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
  876                 scsiseq = ahc_inb(ahc, SCSISEQ);
  877         } else {
  878                 sxfrctl1 = STPWEN;
  879                 our_id = 7;
  880                 scsiseq = 0;
  881         }
  882 
  883         error = ahc_reset(ahc, /*reinit*/FALSE);
  884         if (error != 0)
  885                 return (ENXIO);
  886 
  887         if ((ahc->features & AHC_DT) != 0) {
  888                 u_int sfunct;
  889 
  890                 /* Perform ALT-Mode Setup */
  891                 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
  892                 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
  893                 ahc_outb(ahc, OPTIONMODE,
  894                          OPTIONMODE_DEFAULTS|AUTOACKEN|BUSFREEREV|EXPPHASEDIS);
  895                 ahc_outb(ahc, SFUNCT, sfunct);
  896 
  897                 /* Normal mode setup */
  898                 ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
  899                                           |TARGCRCENDEN);
  900         }
  901 
  902         dscommand0 = ahc_inb(ahc, DSCOMMAND0);
  903         dscommand0 |= MPARCKEN|CACHETHEN;
  904         if ((ahc->features & AHC_ULTRA2) != 0) {
  905 
  906                 /*
  907                  * DPARCKEN doesn't work correctly on
  908                  * some MBs so don't use it.
  909                  */
  910                 dscommand0 &= ~DPARCKEN;
  911         }
  912 
  913         /*
  914          * Handle chips that must have cache line
  915          * streaming (dis/en)abled.
  916          */
  917         if ((ahc->bugs & AHC_CACHETHEN_DIS_BUG) != 0)
  918                 dscommand0 |= CACHETHEN;
  919 
  920         if ((ahc->bugs & AHC_CACHETHEN_BUG) != 0)
  921                 dscommand0 &= ~CACHETHEN;
  922 
  923         ahc_outb(ahc, DSCOMMAND0, dscommand0);
  924 
  925         ahc->pci_cachesize =
  926             aic_pci_read_config(ahc->dev_softc, CSIZE_LATTIME,
  927                                 /*bytes*/1) & CACHESIZE;
  928         ahc->pci_cachesize *= 4;
  929 
  930         if ((ahc->bugs & AHC_PCI_2_1_RETRY_BUG) != 0
  931          && ahc->pci_cachesize == 4) {
  932 
  933                 aic_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
  934                                      0, /*bytes*/1);
  935                 ahc->pci_cachesize = 0;
  936         }
  937 
  938         /*
  939          * We cannot perform ULTRA speeds without the presense
  940          * of the external precision resistor.
  941          */
  942         if ((ahc->features & AHC_ULTRA) != 0) {
  943                 uint32_t devconfig;
  944 
  945                 devconfig = aic_pci_read_config(ahc->dev_softc,
  946                                                 DEVCONFIG, /*bytes*/4);
  947                 if ((devconfig & REXTVALID) == 0)
  948                         ahc->features &= ~AHC_ULTRA;
  949         }
  950 
  951         /* See if we have a SEEPROM and perform auto-term */
  952         check_extport(ahc, &sxfrctl1);
  953 
  954         /*
  955          * Take the LED out of diagnostic mode
  956          */
  957         sblkctl = ahc_inb(ahc, SBLKCTL);
  958         ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
  959 
  960         if ((ahc->features & AHC_ULTRA2) != 0) {
  961                 ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MAX|WR_DFTHRSH_MAX);
  962         } else {
  963                 ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
  964         }
  965 
  966         if (ahc->flags & AHC_USEDEFAULTS) {
  967                 /*
  968                  * PCI Adapter default setup
  969                  * Should only be used if the adapter does not have
  970                  * a SEEPROM.
  971                  */
  972                 /* See if someone else set us up already */
  973                 if ((ahc->flags & AHC_NO_BIOS_INIT) == 0
  974                  && scsiseq != 0) {
  975                         printf("%s: Using left over BIOS settings\n",
  976                                 ahc_name(ahc));
  977                         ahc->flags &= ~AHC_USEDEFAULTS;
  978                         ahc->flags |= AHC_BIOS_ENABLED;
  979                 } else {
  980                         /*
  981                          * Assume only one connector and always turn
  982                          * on termination.
  983                          */
  984                         our_id = 0x07;
  985                         sxfrctl1 = STPWEN;
  986                 }
  987                 ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
  988 
  989                 ahc->our_id = our_id;
  990         }
  991 
  992         /*
  993          * Take a look to see if we have external SRAM.
  994          * We currently do not attempt to use SRAM that is
  995          * shared among multiple controllers.
  996          */
  997         ahc_probe_ext_scbram(ahc);
  998 
  999         /*
 1000          * Record our termination setting for the
 1001          * generic initialization routine.
 1002          */
 1003         if ((sxfrctl1 & STPWEN) != 0)
 1004                 ahc->flags |= AHC_TERM_ENB_A;
 1005 
 1006         /*
 1007          * Save chip register configuration data for chip resets
 1008          * that occur during runtime and resume events.
 1009          */
 1010         ahc->bus_softc.pci_softc.devconfig =
 1011             aic_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
 1012         ahc->bus_softc.pci_softc.command =
 1013             aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1);
 1014         ahc->bus_softc.pci_softc.csize_lattime =
 1015             aic_pci_read_config(ahc->dev_softc, CSIZE_LATTIME, /*bytes*/1);
 1016         ahc->bus_softc.pci_softc.dscommand0 = ahc_inb(ahc, DSCOMMAND0);
 1017         ahc->bus_softc.pci_softc.dspcistatus = ahc_inb(ahc, DSPCISTATUS);
 1018         if ((ahc->features & AHC_DT) != 0) {
 1019                 u_int sfunct;
 1020 
 1021                 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
 1022                 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
 1023                 ahc->bus_softc.pci_softc.optionmode = ahc_inb(ahc, OPTIONMODE);
 1024                 ahc->bus_softc.pci_softc.targcrccnt = ahc_inw(ahc, TARGCRCCNT);
 1025                 ahc_outb(ahc, SFUNCT, sfunct);
 1026                 ahc->bus_softc.pci_softc.crccontrol1 =
 1027                     ahc_inb(ahc, CRCCONTROL1);
 1028         }
 1029         if ((ahc->features & AHC_MULTI_FUNC) != 0)
 1030                 ahc->bus_softc.pci_softc.scbbaddr = ahc_inb(ahc, SCBBADDR);
 1031 
 1032         if ((ahc->features & AHC_ULTRA2) != 0)
 1033                 ahc->bus_softc.pci_softc.dff_thrsh = ahc_inb(ahc, DFF_THRSH);
 1034 
 1035         /* Core initialization */
 1036         error = ahc_init(ahc);
 1037         if (error != 0)
 1038                 return (error);
 1039 
 1040         /*
 1041          * Allow interrupts now that we are completely setup.
 1042          */
 1043         error = ahc_pci_map_int(ahc);
 1044         if (error != 0)
 1045                 return (error);
 1046 
 1047         ahc_lock(ahc);
 1048         /*
 1049          * Link this softc in with all other ahc instances.
 1050          */
 1051         ahc_softc_insert(ahc);
 1052         ahc_unlock(ahc);
 1053         return (0);
 1054 }
 1055 
 1056 /*
 1057  * Test for the presense of external sram in an
 1058  * "unshared" configuration.
 1059  */
 1060 static int
 1061 ahc_ext_scbram_present(struct ahc_softc *ahc)
 1062 {
 1063         u_int chip;
 1064         int ramps;
 1065         int single_user;
 1066         uint32_t devconfig;
 1067 
 1068         chip = ahc->chip & AHC_CHIPID_MASK;
 1069         devconfig = aic_pci_read_config(ahc->dev_softc,
 1070                                         DEVCONFIG, /*bytes*/4);
 1071         single_user = (devconfig & MPORTMODE) != 0;
 1072 
 1073         if ((ahc->features & AHC_ULTRA2) != 0)
 1074                 ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
 1075         else if (chip == AHC_AIC7895 || chip == AHC_AIC7895C)
 1076                 /*
 1077                  * External SCBRAM arbitration is flakey
 1078                  * on these chips.  Unfortunately this means
 1079                  * we don't use the extra SCB ram space on the
 1080                  * 3940AUW.
 1081                  */
 1082                 ramps = 0;
 1083         else if (chip >= AHC_AIC7870)
 1084                 ramps = (devconfig & RAMPSM) != 0;
 1085         else
 1086                 ramps = 0;
 1087 
 1088         if (ramps && single_user)
 1089                 return (1);
 1090         return (0);
 1091 }
 1092 
 1093 /*
 1094  * Enable external scbram.
 1095  */
 1096 static void
 1097 ahc_scbram_config(struct ahc_softc *ahc, int enable, int pcheck,
 1098                   int fast, int large)
 1099 {
 1100         uint32_t devconfig;
 1101 
 1102         if (ahc->features & AHC_MULTI_FUNC) {
 1103                 /*
 1104                  * Set the SCB Base addr (highest address bit)
 1105                  * depending on which channel we are.
 1106                  */
 1107                 ahc_outb(ahc, SCBBADDR, aic_get_pci_function(ahc->dev_softc));
 1108         }
 1109 
 1110         ahc->flags &= ~AHC_LSCBS_ENABLED;
 1111         if (large)
 1112                 ahc->flags |= AHC_LSCBS_ENABLED;
 1113         devconfig = aic_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
 1114         if ((ahc->features & AHC_ULTRA2) != 0) {
 1115                 u_int dscommand0;
 1116 
 1117                 dscommand0 = ahc_inb(ahc, DSCOMMAND0);
 1118                 if (enable)
 1119                         dscommand0 &= ~INTSCBRAMSEL;
 1120                 else
 1121                         dscommand0 |= INTSCBRAMSEL;
 1122                 if (large)
 1123                         dscommand0 &= ~USCBSIZE32;
 1124                 else
 1125                         dscommand0 |= USCBSIZE32;
 1126                 ahc_outb(ahc, DSCOMMAND0, dscommand0);
 1127         } else {
 1128                 if (fast)
 1129                         devconfig &= ~EXTSCBTIME;
 1130                 else
 1131                         devconfig |= EXTSCBTIME;
 1132                 if (enable)
 1133                         devconfig &= ~SCBRAMSEL;
 1134                 else
 1135                         devconfig |= SCBRAMSEL;
 1136                 if (large)
 1137                         devconfig &= ~SCBSIZE32;
 1138                 else
 1139                         devconfig |= SCBSIZE32;
 1140         }
 1141         if (pcheck)
 1142                 devconfig |= EXTSCBPEN;
 1143         else
 1144                 devconfig &= ~EXTSCBPEN;
 1145 
 1146         aic_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
 1147 }
 1148 
 1149 /*
 1150  * Take a look to see if we have external SRAM.
 1151  * We currently do not attempt to use SRAM that is
 1152  * shared among multiple controllers.
 1153  */
 1154 static void
 1155 ahc_probe_ext_scbram(struct ahc_softc *ahc)
 1156 {
 1157         int num_scbs;
 1158         int test_num_scbs;
 1159         int enable;
 1160         int pcheck;
 1161         int fast;
 1162         int large;
 1163 
 1164         enable = FALSE;
 1165         pcheck = FALSE;
 1166         fast = FALSE;
 1167         large = FALSE;
 1168         num_scbs = 0;
 1169         
 1170         if (ahc_ext_scbram_present(ahc) == 0)
 1171                 goto done;
 1172 
 1173         /*
 1174          * Probe for the best parameters to use.
 1175          */
 1176         ahc_scbram_config(ahc, /*enable*/TRUE, pcheck, fast, large);
 1177         num_scbs = ahc_probe_scbs(ahc);
 1178         if (num_scbs == 0) {
 1179                 /* The SRAM wasn't really present. */
 1180                 goto done;
 1181         }
 1182         enable = TRUE;
 1183 
 1184         /*
 1185          * Clear any outstanding parity error
 1186          * and ensure that parity error reporting
 1187          * is enabled.
 1188          */
 1189         ahc_outb(ahc, SEQCTL, 0);
 1190         ahc_outb(ahc, CLRINT, CLRPARERR);
 1191         ahc_outb(ahc, CLRINT, CLRBRKADRINT);
 1192 
 1193         /* Now see if we can do parity */
 1194         ahc_scbram_config(ahc, enable, /*pcheck*/TRUE, fast, large);
 1195         num_scbs = ahc_probe_scbs(ahc);
 1196         if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
 1197          || (ahc_inb(ahc, ERROR) & MPARERR) == 0)
 1198                 pcheck = TRUE;
 1199 
 1200         /* Clear any resulting parity error */
 1201         ahc_outb(ahc, CLRINT, CLRPARERR);
 1202         ahc_outb(ahc, CLRINT, CLRBRKADRINT);
 1203 
 1204         /* Now see if we can do fast timing */
 1205         ahc_scbram_config(ahc, enable, pcheck, /*fast*/TRUE, large);
 1206         test_num_scbs = ahc_probe_scbs(ahc);
 1207         if (test_num_scbs == num_scbs
 1208          && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
 1209           || (ahc_inb(ahc, ERROR) & MPARERR) == 0))
 1210                 fast = TRUE;
 1211 
 1212         /*
 1213          * See if we can use large SCBs and still maintain
 1214          * the same overall count of SCBs.
 1215          */
 1216         if ((ahc->features & AHC_LARGE_SCBS) != 0) {
 1217                 ahc_scbram_config(ahc, enable, pcheck, fast, /*large*/TRUE);
 1218                 test_num_scbs = ahc_probe_scbs(ahc);
 1219                 if (test_num_scbs >= num_scbs) {
 1220                         large = TRUE;
 1221                         num_scbs = test_num_scbs;
 1222                         if (num_scbs >= 64) {
 1223                                 /*
 1224                                  * We have enough space to move the
 1225                                  * "busy targets table" into SCB space
 1226                                  * and make it qualify all the way to the
 1227                                  * lun level.
 1228                                  */
 1229                                 ahc->flags |= AHC_SCB_BTT;
 1230                         }
 1231                 }
 1232         }
 1233 done:
 1234         /*
 1235          * Disable parity error reporting until we
 1236          * can load instruction ram.
 1237          */
 1238         ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
 1239         /* Clear any latched parity error */
 1240         ahc_outb(ahc, CLRINT, CLRPARERR);
 1241         ahc_outb(ahc, CLRINT, CLRBRKADRINT);
 1242         if (bootverbose && enable) {
 1243                 printf("%s: External SRAM, %s access%s, %dbytes/SCB\n",
 1244                        ahc_name(ahc), fast ? "fast" : "slow", 
 1245                        pcheck ? ", parity checking enabled" : "",
 1246                        large ? 64 : 32);
 1247         }
 1248         ahc_scbram_config(ahc, enable, pcheck, fast, large);
 1249 }
 1250 
 1251 /*
 1252  * Perform some simple tests that should catch situations where
 1253  * our registers are invalidly mapped.
 1254  */
 1255 int
 1256 ahc_pci_test_register_access(struct ahc_softc *ahc)
 1257 {
 1258         int      error;
 1259         u_int    status1;
 1260         uint32_t cmd;
 1261         uint8_t  hcntrl;
 1262 
 1263         error = EIO;
 1264 
 1265         /*
 1266          * Enable PCI error interrupt status, but suppress NMIs
 1267          * generated by SERR raised due to target aborts.
 1268          */
 1269         cmd = aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
 1270         aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
 1271                              cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);
 1272 
 1273         /*
 1274          * First a simple test to see if any
 1275          * registers can be read.  Reading
 1276          * HCNTRL has no side effects and has
 1277          * at least one bit that is guaranteed to
 1278          * be zero so it is a good register to
 1279          * use for this test.
 1280          */
 1281         hcntrl = ahc_inb(ahc, HCNTRL);
 1282 
 1283         if (hcntrl == 0xFF)
 1284                 goto fail;
 1285 
 1286         if ((hcntrl & CHIPRST) != 0) {
 1287                 /*
 1288                  * The chip has not been initialized since
 1289                  * PCI/EISA/VLB bus reset.  Don't trust
 1290                  * "left over BIOS data".
 1291                  */
 1292                 ahc->flags |= AHC_NO_BIOS_INIT;
 1293         }
 1294 
 1295         /*
 1296          * Next create a situation where write combining
 1297          * or read prefetching could be initiated by the
 1298          * CPU or host bridge.  Our device does not support
 1299          * either, so look for data corruption and/or flagged
 1300          * PCI errors.  First pause without causing another
 1301          * chip reset.
 1302          */
 1303         hcntrl &= ~CHIPRST;
 1304         ahc_outb(ahc, HCNTRL, hcntrl|PAUSE);
 1305         while (ahc_is_paused(ahc) == 0)
 1306                 ;
 1307 
 1308         /* Clear any PCI errors that occurred before our driver attached. */
 1309         status1 = aic_pci_read_config(ahc->dev_softc,
 1310                                       PCIR_STATUS + 1, /*bytes*/1);
 1311         aic_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
 1312                              status1, /*bytes*/1);
 1313         ahc_outb(ahc, CLRINT, CLRPARERR);
 1314 
 1315         ahc_outb(ahc, SEQCTL, PERRORDIS);
 1316         ahc_outb(ahc, SCBPTR, 0);
 1317         ahc_outl(ahc, SCB_BASE, 0x5aa555aa);
 1318         if (ahc_inl(ahc, SCB_BASE) != 0x5aa555aa)
 1319                 goto fail;
 1320 
 1321         status1 = aic_pci_read_config(ahc->dev_softc,
 1322                                       PCIR_STATUS + 1, /*bytes*/1);
 1323         if ((status1 & STA) != 0)
 1324                 goto fail;
 1325 
 1326         error = 0;
 1327 
 1328 fail:
 1329         /* Silently clear any latched errors. */
 1330         status1 = aic_pci_read_config(ahc->dev_softc,
 1331                                       PCIR_STATUS + 1, /*bytes*/1);
 1332         aic_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
 1333                              status1, /*bytes*/1);
 1334         ahc_outb(ahc, CLRINT, CLRPARERR);
 1335         ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
 1336         aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
 1337         return (error);
 1338 }
 1339 
 1340 /*
 1341  * Check the external port logic for a serial eeprom
 1342  * and termination/cable detection contrls.
 1343  */
 1344 static void
 1345 check_extport(struct ahc_softc *ahc, u_int *sxfrctl1)
 1346 {
 1347         struct  seeprom_descriptor sd;
 1348         struct  seeprom_config *sc;
 1349         int     have_seeprom;
 1350         int     have_autoterm;
 1351 
 1352         sd.sd_ahc = ahc;
 1353         sd.sd_control_offset = SEECTL;          
 1354         sd.sd_status_offset = SEECTL;           
 1355         sd.sd_dataout_offset = SEECTL;          
 1356         sc = ahc->seep_config;
 1357 
 1358         /*
 1359          * For some multi-channel devices, the c46 is simply too
 1360          * small to work.  For the other controller types, we can
 1361          * get our information from either SEEPROM type.  Set the
 1362          * type to start our probe with accordingly.
 1363          */
 1364         if (ahc->flags & AHC_LARGE_SEEPROM)
 1365                 sd.sd_chip = C56_66;
 1366         else
 1367                 sd.sd_chip = C46;
 1368 
 1369         sd.sd_MS = SEEMS;
 1370         sd.sd_RDY = SEERDY;
 1371         sd.sd_CS = SEECS;
 1372         sd.sd_CK = SEECK;
 1373         sd.sd_DO = SEEDO;
 1374         sd.sd_DI = SEEDI;
 1375 
 1376         have_seeprom = ahc_acquire_seeprom(ahc, &sd);
 1377         if (have_seeprom) {
 1378 
 1379                 if (bootverbose) 
 1380                         printf("%s: Reading SEEPROM...", ahc_name(ahc));
 1381 
 1382                 for (;;) {
 1383                         u_int start_addr;
 1384 
 1385                         start_addr = 32 * (ahc->channel - 'A');
 1386 
 1387                         have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
 1388                                                         start_addr,
 1389                                                         sizeof(*sc)/2);
 1390 
 1391                         if (have_seeprom)
 1392                                 have_seeprom = ahc_verify_cksum(sc);
 1393 
 1394                         if (have_seeprom != 0 || sd.sd_chip == C56_66) {
 1395                                 if (bootverbose) {
 1396                                         if (have_seeprom == 0)
 1397                                                 printf ("checksum error\n");
 1398                                         else
 1399                                                 printf ("done.\n");
 1400                                 }
 1401                                 break;
 1402                         }
 1403                         sd.sd_chip = C56_66;
 1404                 }
 1405                 ahc_release_seeprom(&sd);
 1406 
 1407                 /* Remember the SEEPROM type for later */
 1408                 if (sd.sd_chip == C56_66)
 1409                         ahc->flags |= AHC_LARGE_SEEPROM;
 1410         }
 1411 
 1412         if (!have_seeprom) {
 1413                 /*
 1414                  * Pull scratch ram settings and treat them as
 1415                  * if they are the contents of an seeprom if
 1416                  * the 'ADPT' signature is found in SCB2.
 1417                  * We manually compose the data as 16bit values
 1418                  * to avoid endian issues.
 1419                  */
 1420                 ahc_outb(ahc, SCBPTR, 2);
 1421                 if (ahc_inb(ahc, SCB_BASE) == 'A'
 1422                  && ahc_inb(ahc, SCB_BASE + 1) == 'D'
 1423                  && ahc_inb(ahc, SCB_BASE + 2) == 'P'
 1424                  && ahc_inb(ahc, SCB_BASE + 3) == 'T') {
 1425                         uint16_t *sc_data;
 1426                         int       i;
 1427 
 1428                         sc_data = (uint16_t *)sc;
 1429                         for (i = 0; i < 32; i++, sc_data++) {
 1430                                 int     j;
 1431 
 1432                                 j = i * 2;
 1433                                 *sc_data = ahc_inb(ahc, SRAM_BASE + j)
 1434                                          | ahc_inb(ahc, SRAM_BASE + j + 1) << 8;
 1435                         }
 1436                         have_seeprom = ahc_verify_cksum(sc);
 1437                         if (have_seeprom)
 1438                                 ahc->flags |= AHC_SCB_CONFIG_USED;
 1439                 }
 1440                 /*
 1441                  * Clear any SCB parity errors in case this data and
 1442                  * its associated parity was not initialized by the BIOS
 1443                  */
 1444                 ahc_outb(ahc, CLRINT, CLRPARERR);
 1445                 ahc_outb(ahc, CLRINT, CLRBRKADRINT);
 1446         }
 1447 
 1448         if (!have_seeprom) {
 1449                 if (bootverbose)
 1450                         printf("%s: No SEEPROM available.\n", ahc_name(ahc));
 1451                 ahc->flags |= AHC_USEDEFAULTS;
 1452                 free(ahc->seep_config, M_DEVBUF);
 1453                 ahc->seep_config = NULL;
 1454                 sc = NULL;
 1455         } else {
 1456                 ahc_parse_pci_eeprom(ahc, sc);
 1457         }
 1458 
 1459         /*
 1460          * Cards that have the external logic necessary to talk to
 1461          * a SEEPROM, are almost certain to have the remaining logic
 1462          * necessary for auto-termination control.  This assumption
 1463          * hasn't failed yet...
 1464          */
 1465         have_autoterm = have_seeprom;
 1466 
 1467         /*
 1468          * Some low-cost chips have SEEPROM and auto-term control built
 1469          * in, instead of using a GAL.  They can tell us directly
 1470          * if the termination logic is enabled.
 1471          */
 1472         if ((ahc->features & AHC_SPIOCAP) != 0) {
 1473                 if ((ahc_inb(ahc, SPIOCAP) & SSPIOCPS) == 0)
 1474                         have_autoterm = FALSE;
 1475         }
 1476 
 1477         if (have_autoterm) {
 1478                 ahc->flags |= AHC_HAS_TERM_LOGIC;
 1479                 ahc_acquire_seeprom(ahc, &sd);
 1480                 configure_termination(ahc, &sd, sc->adapter_control, sxfrctl1);
 1481                 ahc_release_seeprom(&sd);
 1482         } else if (have_seeprom) {
 1483                 *sxfrctl1 &= ~STPWEN;
 1484                 if ((sc->adapter_control & CFSTERM) != 0)
 1485                         *sxfrctl1 |= STPWEN;
 1486                 if (bootverbose)
 1487                         printf("%s: Low byte termination %sabled\n",
 1488                                ahc_name(ahc),
 1489                                (*sxfrctl1 & STPWEN) ? "en" : "dis");
 1490         }
 1491 }
 1492 
 1493 static void
 1494 ahc_parse_pci_eeprom(struct ahc_softc *ahc, struct seeprom_config *sc)
 1495 {
 1496         /*
 1497          * Put the data we've collected down into SRAM
 1498          * where ahc_init will find it.
 1499          */
 1500         int      i;
 1501         int      max_targ = sc->max_targets & CFMAXTARG;
 1502         u_int    scsi_conf;
 1503         uint16_t discenable;
 1504         uint16_t ultraenb;
 1505 
 1506         discenable = 0;
 1507         ultraenb = 0;
 1508         if ((sc->adapter_control & CFULTRAEN) != 0) {
 1509                 /*
 1510                  * Determine if this adapter has a "newstyle"
 1511                  * SEEPROM format.
 1512                  */
 1513                 for (i = 0; i < max_targ; i++) {
 1514                         if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0) {
 1515                                 ahc->flags |= AHC_NEWEEPROM_FMT;
 1516                                 break;
 1517                         }
 1518                 }
 1519         }
 1520 
 1521         for (i = 0; i < max_targ; i++) {
 1522                 u_int     scsirate;
 1523                 uint16_t target_mask;
 1524 
 1525                 target_mask = 0x01 << i;
 1526                 if (sc->device_flags[i] & CFDISC)
 1527                         discenable |= target_mask;
 1528                 if ((ahc->flags & AHC_NEWEEPROM_FMT) != 0) {
 1529                         if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0)
 1530                                 ultraenb |= target_mask;
 1531                 } else if ((sc->adapter_control & CFULTRAEN) != 0) {
 1532                         ultraenb |= target_mask;
 1533                 }
 1534                 if ((sc->device_flags[i] & CFXFER) == 0x04
 1535                  && (ultraenb & target_mask) != 0) {
 1536                         /* Treat 10MHz as a non-ultra speed */
 1537                         sc->device_flags[i] &= ~CFXFER;
 1538                         ultraenb &= ~target_mask;
 1539                 }
 1540                 if ((ahc->features & AHC_ULTRA2) != 0) {
 1541                         u_int offset;
 1542 
 1543                         if (sc->device_flags[i] & CFSYNCH)
 1544                                 offset = MAX_OFFSET_ULTRA2;
 1545                         else 
 1546                                 offset = 0;
 1547                         ahc_outb(ahc, TARG_OFFSET + i, offset);
 1548 
 1549                         /*
 1550                          * The ultra enable bits contain the
 1551                          * high bit of the ultra2 sync rate
 1552                          * field.
 1553                          */
 1554                         scsirate = (sc->device_flags[i] & CFXFER)
 1555                                  | ((ultraenb & target_mask) ? 0x8 : 0x0);
 1556                         if (sc->device_flags[i] & CFWIDEB)
 1557                                 scsirate |= WIDEXFER;
 1558                 } else {
 1559                         scsirate = (sc->device_flags[i] & CFXFER) << 4;
 1560                         if (sc->device_flags[i] & CFSYNCH)
 1561                                 scsirate |= SOFS;
 1562                         if (sc->device_flags[i] & CFWIDEB)
 1563                                 scsirate |= WIDEXFER;
 1564                 }
 1565                 ahc_outb(ahc, TARG_SCSIRATE + i, scsirate);
 1566         }
 1567         ahc->our_id = sc->brtime_id & CFSCSIID;
 1568 
 1569         scsi_conf = (ahc->our_id & 0x7);
 1570         if (sc->adapter_control & CFSPARITY)
 1571                 scsi_conf |= ENSPCHK;
 1572         if (sc->adapter_control & CFRESETB)
 1573                 scsi_conf |= RESET_SCSI;
 1574 
 1575         ahc->flags |= (sc->adapter_control & CFBOOTCHAN) >> CFBOOTCHANSHIFT;
 1576 
 1577         if (sc->bios_control & CFEXTEND)
 1578                 ahc->flags |= AHC_EXTENDED_TRANS_A;
 1579 
 1580         if (sc->bios_control & CFBIOSEN)
 1581                 ahc->flags |= AHC_BIOS_ENABLED;
 1582         if (ahc->features & AHC_ULTRA
 1583          && (ahc->flags & AHC_NEWEEPROM_FMT) == 0) {
 1584                 /* Should we enable Ultra mode? */
 1585                 if (!(sc->adapter_control & CFULTRAEN))
 1586                         /* Treat us as a non-ultra card */
 1587                         ultraenb = 0;
 1588         }
 1589 
 1590         if (sc->signature == CFSIGNATURE
 1591          || sc->signature == CFSIGNATURE2) {
 1592                 uint32_t devconfig;
 1593 
 1594                 /* Honor the STPWLEVEL settings */
 1595                 devconfig = aic_pci_read_config(ahc->dev_softc,
 1596                                                 DEVCONFIG, /*bytes*/4);
 1597                 devconfig &= ~STPWLEVEL;
 1598                 if ((sc->bios_control & CFSTPWLEVEL) != 0)
 1599                         devconfig |= STPWLEVEL;
 1600                 aic_pci_write_config(ahc->dev_softc, DEVCONFIG,
 1601                                      devconfig, /*bytes*/4);
 1602         }
 1603         /* Set SCSICONF info */
 1604         ahc_outb(ahc, SCSICONF, scsi_conf);
 1605         ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
 1606         ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
 1607         ahc_outb(ahc, ULTRA_ENB, ultraenb & 0xff);
 1608         ahc_outb(ahc, ULTRA_ENB + 1, (ultraenb >> 8) & 0xff);
 1609 }
 1610 
 1611 static void
 1612 configure_termination(struct ahc_softc *ahc,
 1613                       struct seeprom_descriptor *sd,
 1614                       u_int adapter_control,
 1615                       u_int *sxfrctl1)
 1616 {
 1617         uint8_t brddat;
 1618         
 1619         brddat = 0;
 1620 
 1621         /*
 1622          * Update the settings in sxfrctl1 to match the
 1623          * termination settings 
 1624          */
 1625         *sxfrctl1 = 0;
 1626         
 1627         /*
 1628          * SEECS must be on for the GALS to latch
 1629          * the data properly.  Be sure to leave MS
 1630          * on or we will release the seeprom.
 1631          */
 1632         SEEPROM_OUTB(sd, sd->sd_MS | sd->sd_CS);
 1633         if ((adapter_control & CFAUTOTERM) != 0
 1634          || (ahc->features & AHC_NEW_TERMCTL) != 0) {
 1635                 int internal50_present;
 1636                 int internal68_present;
 1637                 int externalcable_present;
 1638                 int eeprom_present;
 1639                 int enableSEC_low;
 1640                 int enableSEC_high;
 1641                 int enablePRI_low;
 1642                 int enablePRI_high;
 1643                 int sum;
 1644 
 1645                 enableSEC_low = 0;
 1646                 enableSEC_high = 0;
 1647                 enablePRI_low = 0;
 1648                 enablePRI_high = 0;
 1649                 if ((ahc->features & AHC_NEW_TERMCTL) != 0) {
 1650                         ahc_new_term_detect(ahc, &enableSEC_low,
 1651                                             &enableSEC_high,
 1652                                             &enablePRI_low,
 1653                                             &enablePRI_high,
 1654                                             &eeprom_present);
 1655                         if ((adapter_control & CFSEAUTOTERM) == 0) {
 1656                                 if (bootverbose)
 1657                                         printf("%s: Manual SE Termination\n",
 1658                                                ahc_name(ahc));
 1659                                 enableSEC_low = (adapter_control & CFSELOWTERM);
 1660                                 enableSEC_high =
 1661                                     (adapter_control & CFSEHIGHTERM);
 1662                         }
 1663                         if ((adapter_control & CFAUTOTERM) == 0) {
 1664                                 if (bootverbose)
 1665                                         printf("%s: Manual LVD Termination\n",
 1666                                                ahc_name(ahc));
 1667                                 enablePRI_low = (adapter_control & CFSTERM);
 1668                                 enablePRI_high = (adapter_control & CFWSTERM);
 1669                         }
 1670                         /* Make the table calculations below happy */
 1671                         internal50_present = 0;
 1672                         internal68_present = 1;
 1673                         externalcable_present = 1;
 1674                 } else if ((ahc->features & AHC_SPIOCAP) != 0) {
 1675                         aic785X_cable_detect(ahc, &internal50_present,
 1676                                              &externalcable_present,
 1677                                              &eeprom_present);
 1678                         /* Can never support a wide connector. */
 1679                         internal68_present = 0;
 1680                 } else {
 1681                         aic787X_cable_detect(ahc, &internal50_present,
 1682                                              &internal68_present,
 1683                                              &externalcable_present,
 1684                                              &eeprom_present);
 1685                 }
 1686 
 1687                 if ((ahc->features & AHC_WIDE) == 0)
 1688                         internal68_present = 0;
 1689 
 1690                 if (bootverbose
 1691                  && (ahc->features & AHC_ULTRA2) == 0) {
 1692                         printf("%s: internal 50 cable %s present",
 1693                                ahc_name(ahc),
 1694                                internal50_present ? "is":"not");
 1695 
 1696                         if ((ahc->features & AHC_WIDE) != 0)
 1697                                 printf(", internal 68 cable %s present",
 1698                                        internal68_present ? "is":"not");
 1699                         printf("\n%s: external cable %s present\n",
 1700                                ahc_name(ahc),
 1701                                externalcable_present ? "is":"not");
 1702                 }
 1703                 if (bootverbose)
 1704                         printf("%s: BIOS eeprom %s present\n",
 1705                                ahc_name(ahc), eeprom_present ? "is" : "not");
 1706 
 1707                 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) {
 1708                         /*
 1709                          * The 50 pin connector is a separate bus,
 1710                          * so force it to always be terminated.
 1711                          * In the future, perform current sensing
 1712                          * to determine if we are in the middle of
 1713                          * a properly terminated bus.
 1714                          */
 1715                         internal50_present = 0;
 1716                 }
 1717 
 1718                 /*
 1719                  * Now set the termination based on what
 1720                  * we found.
 1721                  * Flash Enable = BRDDAT7
 1722                  * Secondary High Term Enable = BRDDAT6
 1723                  * Secondary Low Term Enable = BRDDAT5 (7890)
 1724                  * Primary High Term Enable = BRDDAT4 (7890)
 1725                  */
 1726                 if ((ahc->features & AHC_ULTRA2) == 0
 1727                  && (internal50_present != 0)
 1728                  && (internal68_present != 0)
 1729                  && (externalcable_present != 0)) {
 1730                         printf("%s: Illegal cable configuration!!. "
 1731                                "Only two connectors on the "
 1732                                "adapter may be used at a "
 1733                                "time!\n", ahc_name(ahc));
 1734 
 1735                         /*
 1736                          * Pretend there are no cables in the hope
 1737                          * that having all of the termination on
 1738                          * gives us a more stable bus.
 1739                          */
 1740                         internal50_present = 0;
 1741                         internal68_present = 0;
 1742                         externalcable_present = 0;
 1743                 }
 1744 
 1745                 if ((ahc->features & AHC_WIDE) != 0
 1746                  && ((externalcable_present == 0)
 1747                   || (internal68_present == 0)
 1748                   || (enableSEC_high != 0))) {
 1749                         brddat |= BRDDAT6;
 1750                         if (bootverbose) {
 1751                                 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
 1752                                         printf("%s: 68 pin termination "
 1753                                                "Enabled\n", ahc_name(ahc));
 1754                                 else
 1755                                         printf("%s: %sHigh byte termination "
 1756                                                "Enabled\n", ahc_name(ahc),
 1757                                                enableSEC_high ? "Secondary "
 1758                                                               : "");
 1759                         }
 1760                 }
 1761 
 1762                 sum = internal50_present + internal68_present
 1763                     + externalcable_present;
 1764                 if (sum < 2 || (enableSEC_low != 0)) {
 1765                         if ((ahc->features & AHC_ULTRA2) != 0)
 1766                                 brddat |= BRDDAT5;
 1767                         else
 1768                                 *sxfrctl1 |= STPWEN;
 1769                         if (bootverbose) {
 1770                                 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
 1771                                         printf("%s: 50 pin termination "
 1772                                                "Enabled\n", ahc_name(ahc));
 1773                                 else
 1774                                         printf("%s: %sLow byte termination "
 1775                                                "Enabled\n", ahc_name(ahc),
 1776                                                enableSEC_low ? "Secondary "
 1777                                                              : "");
 1778                         }
 1779                 }
 1780 
 1781                 if (enablePRI_low != 0) {
 1782                         *sxfrctl1 |= STPWEN;
 1783                         if (bootverbose)
 1784                                 printf("%s: Primary Low Byte termination "
 1785                                        "Enabled\n", ahc_name(ahc));
 1786                 }
 1787 
 1788                 /*
 1789                  * Setup STPWEN before setting up the rest of
 1790                  * the termination per the tech note on the U160 cards.
 1791                  */
 1792                 ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
 1793 
 1794                 if (enablePRI_high != 0) {
 1795                         brddat |= BRDDAT4;
 1796                         if (bootverbose)
 1797                                 printf("%s: Primary High Byte "
 1798                                        "termination Enabled\n",
 1799                                        ahc_name(ahc));
 1800                 }
 1801                 
 1802                 write_brdctl(ahc, brddat);
 1803 
 1804         } else {
 1805                 if ((adapter_control & CFSTERM) != 0) {
 1806                         *sxfrctl1 |= STPWEN;
 1807 
 1808                         if (bootverbose)
 1809                                 printf("%s: %sLow byte termination Enabled\n",
 1810                                        ahc_name(ahc),
 1811                                        (ahc->features & AHC_ULTRA2) ? "Primary "
 1812                                                                     : "");
 1813                 }
 1814 
 1815                 if ((adapter_control & CFWSTERM) != 0
 1816                  && (ahc->features & AHC_WIDE) != 0) {
 1817                         brddat |= BRDDAT6;
 1818                         if (bootverbose)
 1819                                 printf("%s: %sHigh byte termination Enabled\n",
 1820                                        ahc_name(ahc),
 1821                                        (ahc->features & AHC_ULTRA2)
 1822                                      ? "Secondary " : "");
 1823                 }
 1824 
 1825                 /*
 1826                  * Setup STPWEN before setting up the rest of
 1827                  * the termination per the tech note on the U160 cards.
 1828                  */
 1829                 ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
 1830 
 1831                 if ((ahc->features & AHC_WIDE) != 0)
 1832                         write_brdctl(ahc, brddat);
 1833         }
 1834         SEEPROM_OUTB(sd, sd->sd_MS); /* Clear CS */
 1835 }
 1836 
 1837 static void
 1838 ahc_new_term_detect(struct ahc_softc *ahc, int *enableSEC_low,
 1839                     int *enableSEC_high, int *enablePRI_low,
 1840                     int *enablePRI_high, int *eeprom_present)
 1841 {
 1842         uint8_t brdctl;
 1843 
 1844         /*
 1845          * BRDDAT7 = Eeprom
 1846          * BRDDAT6 = Enable Secondary High Byte termination
 1847          * BRDDAT5 = Enable Secondary Low Byte termination
 1848          * BRDDAT4 = Enable Primary high byte termination
 1849          * BRDDAT3 = Enable Primary low byte termination
 1850          */
 1851         brdctl = read_brdctl(ahc);
 1852         *eeprom_present = brdctl & BRDDAT7;
 1853         *enableSEC_high = (brdctl & BRDDAT6);
 1854         *enableSEC_low = (brdctl & BRDDAT5);
 1855         *enablePRI_high = (brdctl & BRDDAT4);
 1856         *enablePRI_low = (brdctl & BRDDAT3);
 1857 }
 1858 
 1859 static void
 1860 aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
 1861                      int *internal68_present, int *externalcable_present,
 1862                      int *eeprom_present)
 1863 {
 1864         uint8_t brdctl;
 1865 
 1866         /*
 1867          * First read the status of our cables.
 1868          * Set the rom bank to 0 since the
 1869          * bank setting serves as a multiplexor
 1870          * for the cable detection logic.
 1871          * BRDDAT5 controls the bank switch.
 1872          */
 1873         write_brdctl(ahc, 0);
 1874 
 1875         /*
 1876          * Now read the state of the internal
 1877          * connectors.  BRDDAT6 is INT50 and
 1878          * BRDDAT7 is INT68.
 1879          */
 1880         brdctl = read_brdctl(ahc);
 1881         *internal50_present = (brdctl & BRDDAT6) ? 0 : 1;
 1882         *internal68_present = (brdctl & BRDDAT7) ? 0 : 1;
 1883 
 1884         /*
 1885          * Set the rom bank to 1 and determine
 1886          * the other signals.
 1887          */
 1888         write_brdctl(ahc, BRDDAT5);
 1889 
 1890         /*
 1891          * Now read the state of the external
 1892          * connectors.  BRDDAT6 is EXT68 and
 1893          * BRDDAT7 is EPROMPS.
 1894          */
 1895         brdctl = read_brdctl(ahc);
 1896         *externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
 1897         *eeprom_present = (brdctl & BRDDAT7) ? 1 : 0;
 1898 }
 1899 
 1900 static void
 1901 aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
 1902                      int *externalcable_present, int *eeprom_present)
 1903 {
 1904         uint8_t brdctl;
 1905         uint8_t spiocap;
 1906 
 1907         spiocap = ahc_inb(ahc, SPIOCAP);
 1908         spiocap &= ~SOFTCMDEN;
 1909         spiocap |= EXT_BRDCTL;
 1910         ahc_outb(ahc, SPIOCAP, spiocap);
 1911         ahc_outb(ahc, BRDCTL, BRDRW|BRDCS);
 1912         ahc_flush_device_writes(ahc);
 1913         aic_delay(500);
 1914         ahc_outb(ahc, BRDCTL, 0);
 1915         ahc_flush_device_writes(ahc);
 1916         aic_delay(500);
 1917         brdctl = ahc_inb(ahc, BRDCTL);
 1918         *internal50_present = (brdctl & BRDDAT5) ? 0 : 1;
 1919         *externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
 1920         *eeprom_present = (ahc_inb(ahc, SPIOCAP) & EEPROM) ? 1 : 0;
 1921 }
 1922         
 1923 int
 1924 ahc_acquire_seeprom(struct ahc_softc *ahc, struct seeprom_descriptor *sd)
 1925 {
 1926         int wait;
 1927 
 1928         if ((ahc->features & AHC_SPIOCAP) != 0
 1929          && (ahc_inb(ahc, SPIOCAP) & SEEPROM) == 0)
 1930                 return (0);
 1931 
 1932         /*
 1933          * Request access of the memory port.  When access is
 1934          * granted, SEERDY will go high.  We use a 1 second
 1935          * timeout which should be near 1 second more than
 1936          * is needed.  Reason: after the chip reset, there
 1937          * should be no contention.
 1938          */
 1939         SEEPROM_OUTB(sd, sd->sd_MS);
 1940         wait = 1000;  /* 1 second timeout in msec */
 1941         while (--wait && ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0)) {
 1942                 aic_delay(1000);  /* delay 1 msec */
 1943         }
 1944         if ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0) {
 1945                 SEEPROM_OUTB(sd, 0); 
 1946                 return (0);
 1947         }
 1948         return(1);
 1949 }
 1950 
 1951 void
 1952 ahc_release_seeprom(struct seeprom_descriptor *sd)
 1953 {
 1954         /* Release access to the memory port and the serial EEPROM. */
 1955         SEEPROM_OUTB(sd, 0);
 1956 }
 1957 
 1958 static void
 1959 write_brdctl(struct ahc_softc *ahc, uint8_t value)
 1960 {
 1961         uint8_t brdctl;
 1962 
 1963         if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
 1964                 brdctl = BRDSTB;
 1965                 if (ahc->channel == 'B')
 1966                         brdctl |= BRDCS;
 1967         } else if ((ahc->features & AHC_ULTRA2) != 0) {
 1968                 brdctl = 0;
 1969         } else {
 1970                 brdctl = BRDSTB|BRDCS;
 1971         }
 1972         ahc_outb(ahc, BRDCTL, brdctl);
 1973         ahc_flush_device_writes(ahc);
 1974         brdctl |= value;
 1975         ahc_outb(ahc, BRDCTL, brdctl);
 1976         ahc_flush_device_writes(ahc);
 1977         if ((ahc->features & AHC_ULTRA2) != 0)
 1978                 brdctl |= BRDSTB_ULTRA2;
 1979         else
 1980                 brdctl &= ~BRDSTB;
 1981         ahc_outb(ahc, BRDCTL, brdctl);
 1982         ahc_flush_device_writes(ahc);
 1983         if ((ahc->features & AHC_ULTRA2) != 0)
 1984                 brdctl = 0;
 1985         else
 1986                 brdctl &= ~BRDCS;
 1987         ahc_outb(ahc, BRDCTL, brdctl);
 1988 }
 1989 
 1990 static uint8_t
 1991 read_brdctl(struct ahc_softc *ahc)
 1992 {
 1993         uint8_t brdctl;
 1994         uint8_t value;
 1995 
 1996         if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
 1997                 brdctl = BRDRW;
 1998                 if (ahc->channel == 'B')
 1999                         brdctl |= BRDCS;
 2000         } else if ((ahc->features & AHC_ULTRA2) != 0) {
 2001                 brdctl = BRDRW_ULTRA2;
 2002         } else {
 2003                 brdctl = BRDRW|BRDCS;
 2004         }
 2005         ahc_outb(ahc, BRDCTL, brdctl);
 2006         ahc_flush_device_writes(ahc);
 2007         value = ahc_inb(ahc, BRDCTL);
 2008         ahc_outb(ahc, BRDCTL, 0);
 2009         return (value);
 2010 }
 2011 
 2012 static void
 2013 ahc_pci_intr(struct ahc_softc *ahc)
 2014 {
 2015         u_int error;
 2016         u_int status1;
 2017 
 2018         error = ahc_inb(ahc, ERROR);
 2019         if ((error & PCIERRSTAT) == 0)
 2020                 return;
 2021 
 2022         status1 = aic_pci_read_config(ahc->dev_softc,
 2023                                       PCIR_STATUS + 1, /*bytes*/1);
 2024 
 2025         if ((status1 & ~DPE) != 0
 2026          || (ahc->flags & AHC_DISABLE_PCI_PERR) == 0) {
 2027                 printf("%s: PCI error Interrupt at seqaddr = 0x%x\n",
 2028                        ahc_name(ahc),
 2029                        ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8));
 2030         }
 2031 
 2032         if (status1 & DPE
 2033          && (ahc->flags & AHC_DISABLE_PCI_PERR) == 0) {
 2034                 ahc->pci_target_perr_count++;
 2035                 printf("%s: Data Parity Error Detected during address "
 2036                        "or write data phase\n", ahc_name(ahc));
 2037         }
 2038         if (status1 & SSE) {
 2039                 printf("%s: Signal System Error Detected\n", ahc_name(ahc));
 2040         }
 2041         if (status1 & RMA) {
 2042                 printf("%s: Received a Master Abort\n", ahc_name(ahc));
 2043         }
 2044         if (status1 & RTA) {
 2045                 printf("%s: Received a Target Abort\n", ahc_name(ahc));
 2046         }
 2047         if (status1 & STA) {
 2048                 printf("%s: Signaled a Target Abort\n", ahc_name(ahc));
 2049         }
 2050         if (status1 & DPR) {
 2051                 printf("%s: Data Parity Error has been reported via PERR#\n",
 2052                        ahc_name(ahc));
 2053         }
 2054 
 2055         /* Clear latched errors. */
 2056         aic_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
 2057                              status1, /*bytes*/1);
 2058 
 2059         if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
 2060                 printf("%s: Latched PCIERR interrupt with "
 2061                        "no status bits set\n", ahc_name(ahc)); 
 2062         } else {
 2063                 ahc_outb(ahc, CLRINT, CLRPARERR);
 2064         }
 2065 
 2066         if (ahc->pci_target_perr_count > AHC_PCI_TARGET_PERR_THRESH
 2067          && (ahc->flags & AHC_DISABLE_PCI_PERR) == 0) {
 2068                 printf(
 2069 "%s: WARNING WARNING WARNING WARNING\n"
 2070 "%s: Too many PCI parity errors observed as a target.\n"
 2071 "%s: Some device on this PCI bus is generating bad parity.\n"
 2072 "%s: This is an error *observed by*, not *generated by*, %s.\n"
 2073 "%s: PCI parity error checking has been disabled.\n"
 2074 "%s: WARNING WARNING WARNING WARNING\n",
 2075                        ahc_name(ahc), ahc_name(ahc), ahc_name(ahc),
 2076                        ahc_name(ahc), ahc_name(ahc), ahc_name(ahc),
 2077                        ahc_name(ahc));
 2078                 ahc->seqctl |= FAILDIS;
 2079                 ahc->flags |= AHC_DISABLE_PCI_PERR;
 2080                 ahc_outb(ahc, SEQCTL, ahc->seqctl);
 2081         }
 2082         ahc_unpause(ahc);
 2083 }
 2084 
 2085 static int
 2086 ahc_pci_chip_init(struct ahc_softc *ahc)
 2087 {
 2088         ahc_outb(ahc, DSCOMMAND0, ahc->bus_softc.pci_softc.dscommand0);
 2089         ahc_outb(ahc, DSPCISTATUS, ahc->bus_softc.pci_softc.dspcistatus);
 2090         if ((ahc->features & AHC_DT) != 0) {
 2091                 u_int sfunct;
 2092 
 2093                 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
 2094                 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
 2095                 ahc_outb(ahc, OPTIONMODE, ahc->bus_softc.pci_softc.optionmode);
 2096                 ahc_outw(ahc, TARGCRCCNT, ahc->bus_softc.pci_softc.targcrccnt);
 2097                 ahc_outb(ahc, SFUNCT, sfunct);
 2098                 ahc_outb(ahc, CRCCONTROL1,
 2099                          ahc->bus_softc.pci_softc.crccontrol1);
 2100         }
 2101         if ((ahc->features & AHC_MULTI_FUNC) != 0)
 2102                 ahc_outb(ahc, SCBBADDR, ahc->bus_softc.pci_softc.scbbaddr);
 2103 
 2104         if ((ahc->features & AHC_ULTRA2) != 0)
 2105                 ahc_outb(ahc, DFF_THRSH, ahc->bus_softc.pci_softc.dff_thrsh);
 2106 
 2107         return (ahc_chip_init(ahc));
 2108 }
 2109 
 2110 static int
 2111 ahc_pci_suspend(struct ahc_softc *ahc)
 2112 {
 2113         return (ahc_suspend(ahc));
 2114 }
 2115 
 2116 static int
 2117 ahc_pci_resume(struct ahc_softc *ahc)
 2118 {
 2119 
 2120         aic_power_state_change(ahc, AIC_POWER_STATE_D0);
 2121 
 2122         /*
 2123          * We assume that the OS has restored our register
 2124          * mappings, etc.  Just update the config space registers
 2125          * that the OS doesn't know about and rely on our chip
 2126          * reset handler to handle the rest.
 2127          */
 2128         aic_pci_write_config(ahc->dev_softc, DEVCONFIG,
 2129                              ahc->bus_softc.pci_softc.devconfig, /*bytes*/4);
 2130         aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
 2131                              ahc->bus_softc.pci_softc.command, /*bytes*/1);
 2132         aic_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
 2133                              ahc->bus_softc.pci_softc.csize_lattime,
 2134                              /*bytes*/1);
 2135         if ((ahc->flags & AHC_HAS_TERM_LOGIC) != 0) {
 2136                 struct  seeprom_descriptor sd;
 2137                 u_int   sxfrctl1;
 2138 
 2139                 sd.sd_ahc = ahc;
 2140                 sd.sd_control_offset = SEECTL;          
 2141                 sd.sd_status_offset = SEECTL;           
 2142                 sd.sd_dataout_offset = SEECTL;          
 2143 
 2144                 ahc_acquire_seeprom(ahc, &sd);
 2145                 configure_termination(ahc, &sd,
 2146                                       ahc->seep_config->adapter_control,
 2147                                       &sxfrctl1);
 2148                 ahc_release_seeprom(&sd);
 2149         }
 2150         return (ahc_resume(ahc));
 2151 }
 2152 
 2153 static int
 2154 ahc_aic785X_setup(struct ahc_softc *ahc)
 2155 {
 2156         aic_dev_softc_t pci;
 2157         uint8_t rev;
 2158 
 2159         pci = ahc->dev_softc;
 2160         ahc->channel = 'A';
 2161         ahc->chip = AHC_AIC7850;
 2162         ahc->features = AHC_AIC7850_FE;
 2163         ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
 2164         rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
 2165         if (rev >= 1)
 2166                 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
 2167         ahc->instruction_ram_size = 512;
 2168         return (0);
 2169 }
 2170 
 2171 static int
 2172 ahc_aic7860_setup(struct ahc_softc *ahc)
 2173 {
 2174         aic_dev_softc_t pci;
 2175         uint8_t rev;
 2176 
 2177         pci = ahc->dev_softc;
 2178         ahc->channel = 'A';
 2179         ahc->chip = AHC_AIC7860;
 2180         ahc->features = AHC_AIC7860_FE;
 2181         ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
 2182         rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
 2183         if (rev >= 1)
 2184                 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
 2185         ahc->instruction_ram_size = 512;
 2186         return (0);
 2187 }
 2188 
 2189 static int
 2190 ahc_apa1480_setup(struct ahc_softc *ahc)
 2191 {
 2192         int error;
 2193 
 2194         error = ahc_aic7860_setup(ahc);
 2195         if (error != 0)
 2196                 return (error);
 2197         ahc->features |= AHC_REMOVABLE;
 2198         return (0);
 2199 }
 2200 
 2201 static int
 2202 ahc_aic7870_setup(struct ahc_softc *ahc)
 2203 {
 2204 
 2205         ahc->channel = 'A';
 2206         ahc->chip = AHC_AIC7870;
 2207         ahc->features = AHC_AIC7870_FE;
 2208         ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
 2209         ahc->instruction_ram_size = 512;
 2210         return (0);
 2211 }
 2212 
 2213 static int
 2214 ahc_aha394X_setup(struct ahc_softc *ahc)
 2215 {
 2216         int error;
 2217 
 2218         error = ahc_aic7870_setup(ahc);
 2219         if (error == 0)
 2220                 error = ahc_aha394XX_setup(ahc);
 2221         return (error);
 2222 }
 2223 
 2224 static int
 2225 ahc_aha398X_setup(struct ahc_softc *ahc)
 2226 {
 2227         int error;
 2228 
 2229         error = ahc_aic7870_setup(ahc);
 2230         if (error == 0)
 2231                 error = ahc_aha398XX_setup(ahc);
 2232         return (error);
 2233 }
 2234 
 2235 static int
 2236 ahc_aha494X_setup(struct ahc_softc *ahc)
 2237 {
 2238         int error;
 2239 
 2240         error = ahc_aic7870_setup(ahc);
 2241         if (error == 0)
 2242                 error = ahc_aha494XX_setup(ahc);
 2243         return (error);
 2244 }
 2245 
 2246 static int
 2247 ahc_aic7880_setup(struct ahc_softc *ahc)
 2248 {
 2249         aic_dev_softc_t pci;
 2250         uint8_t rev;
 2251 
 2252         pci = ahc->dev_softc;
 2253         ahc->channel = 'A';
 2254         ahc->chip = AHC_AIC7880;
 2255         ahc->features = AHC_AIC7880_FE;
 2256         ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
 2257         rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
 2258         if (rev >= 1) {
 2259                 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
 2260         } else {
 2261                 ahc->bugs |= AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
 2262         }
 2263         ahc->instruction_ram_size = 512;
 2264         return (0);
 2265 }
 2266 
 2267 static int
 2268 ahc_aha2940Pro_setup(struct ahc_softc *ahc)
 2269 {
 2270 
 2271         ahc->flags |= AHC_INT50_SPEEDFLEX;
 2272         return (ahc_aic7880_setup(ahc));
 2273 }
 2274 
 2275 static int
 2276 ahc_aha394XU_setup(struct ahc_softc *ahc)
 2277 {
 2278         int error;
 2279 
 2280         error = ahc_aic7880_setup(ahc);
 2281         if (error == 0)
 2282                 error = ahc_aha394XX_setup(ahc);
 2283         return (error);
 2284 }
 2285 
 2286 static int
 2287 ahc_aha398XU_setup(struct ahc_softc *ahc)
 2288 {
 2289         int error;
 2290 
 2291         error = ahc_aic7880_setup(ahc);
 2292         if (error == 0)
 2293                 error = ahc_aha398XX_setup(ahc);
 2294         return (error);
 2295 }
 2296 
 2297 static int
 2298 ahc_aic7890_setup(struct ahc_softc *ahc)
 2299 {
 2300         aic_dev_softc_t pci;
 2301         uint8_t rev;
 2302 
 2303         pci = ahc->dev_softc;
 2304         ahc->channel = 'A';
 2305         ahc->chip = AHC_AIC7890;
 2306         ahc->features = AHC_AIC7890_FE;
 2307         ahc->flags |= AHC_NEWEEPROM_FMT;
 2308         rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
 2309         if (rev == 0)
 2310                 ahc->bugs |= AHC_AUTOFLUSH_BUG|AHC_CACHETHEN_BUG;
 2311         ahc->instruction_ram_size = 768;
 2312         return (0);
 2313 }
 2314 
 2315 static int
 2316 ahc_aic7892_setup(struct ahc_softc *ahc)
 2317 {
 2318 
 2319         ahc->channel = 'A';
 2320         ahc->chip = AHC_AIC7892;
 2321         ahc->features = AHC_AIC7892_FE;
 2322         ahc->flags |= AHC_NEWEEPROM_FMT;
 2323         ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
 2324         ahc->instruction_ram_size = 1024;
 2325         return (0);
 2326 }
 2327 
 2328 static int
 2329 ahc_aic7895_setup(struct ahc_softc *ahc)
 2330 {
 2331         aic_dev_softc_t pci;
 2332         uint8_t rev;
 2333 
 2334         pci = ahc->dev_softc;
 2335         ahc->channel = aic_get_pci_function(pci) == 1 ? 'B' : 'A';
 2336         /*
 2337          * The 'C' revision of the aic7895 has a few additional features.
 2338          */
 2339         rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
 2340         if (rev >= 4) {
 2341                 ahc->chip = AHC_AIC7895C;
 2342                 ahc->features = AHC_AIC7895C_FE;
 2343         } else  {
 2344                 u_int command;
 2345 
 2346                 ahc->chip = AHC_AIC7895;
 2347                 ahc->features = AHC_AIC7895_FE;
 2348 
 2349                 /*
 2350                  * The BIOS disables the use of MWI transactions
 2351                  * since it does not have the MWI bug work around
 2352                  * we have.  Disabling MWI reduces performance, so
 2353                  * turn it on again.
 2354                  */
 2355                 command = aic_pci_read_config(pci, PCIR_COMMAND, /*bytes*/1);
 2356                 command |= PCIM_CMD_MWRICEN;
 2357                 aic_pci_write_config(pci, PCIR_COMMAND, command, /*bytes*/1);
 2358                 ahc->bugs |= AHC_PCI_MWI_BUG;
 2359         }
 2360         /*
 2361          * XXX Does CACHETHEN really not work???  What about PCI retry?
 2362          * on C level chips.  Need to test, but for now, play it safe.
 2363          */
 2364         ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_PCI_2_1_RETRY_BUG
 2365                   |  AHC_CACHETHEN_BUG;
 2366 
 2367 #if 0
 2368         uint32_t devconfig;
 2369 
 2370         /*
 2371          * Cachesize must also be zero due to stray DAC
 2372          * problem when sitting behind some bridges.
 2373          */
 2374         aic_pci_write_config(pci, CSIZE_LATTIME, 0, /*bytes*/1);
 2375         devconfig = aic_pci_read_config(pci, DEVCONFIG, /*bytes*/1);
 2376         devconfig |= MRDCEN;
 2377         aic_pci_write_config(pci, DEVCONFIG, devconfig, /*bytes*/1);
 2378 #endif
 2379         ahc->flags |= AHC_NEWEEPROM_FMT;
 2380         ahc->instruction_ram_size = 512;
 2381         return (0);
 2382 }
 2383 
 2384 static int
 2385 ahc_aic7896_setup(struct ahc_softc *ahc)
 2386 {
 2387         aic_dev_softc_t pci;
 2388 
 2389         pci = ahc->dev_softc;
 2390         ahc->channel = aic_get_pci_function(pci) == 1 ? 'B' : 'A';
 2391         ahc->chip = AHC_AIC7896;
 2392         ahc->features = AHC_AIC7896_FE;
 2393         ahc->flags |= AHC_NEWEEPROM_FMT;
 2394         ahc->bugs |= AHC_CACHETHEN_DIS_BUG;
 2395         ahc->instruction_ram_size = 768;
 2396         return (0);
 2397 }
 2398 
 2399 static int
 2400 ahc_aic7899_setup(struct ahc_softc *ahc)
 2401 {
 2402         aic_dev_softc_t pci;
 2403 
 2404         pci = ahc->dev_softc;
 2405         ahc->channel = aic_get_pci_function(pci) == 1 ? 'B' : 'A';
 2406         ahc->chip = AHC_AIC7899;
 2407         ahc->features = AHC_AIC7899_FE;
 2408         ahc->flags |= AHC_NEWEEPROM_FMT;
 2409         ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
 2410         ahc->instruction_ram_size = 1024;
 2411         return (0);
 2412 }
 2413 
 2414 static int
 2415 ahc_aha29160C_setup(struct ahc_softc *ahc)
 2416 {
 2417         int error;
 2418 
 2419         error = ahc_aic7899_setup(ahc);
 2420         if (error != 0)
 2421                 return (error);
 2422         ahc->features |= AHC_REMOVABLE;
 2423         return (0);
 2424 }
 2425 
 2426 static int
 2427 ahc_raid_setup(struct ahc_softc *ahc)
 2428 {
 2429         printf("RAID functionality unsupported\n");
 2430         return (ENXIO);
 2431 }
 2432 
 2433 static int
 2434 ahc_aha394XX_setup(struct ahc_softc *ahc)
 2435 {
 2436         aic_dev_softc_t pci;
 2437 
 2438         pci = ahc->dev_softc;
 2439         switch (aic_get_pci_slot(pci)) {
 2440         case AHC_394X_SLOT_CHANNEL_A:
 2441                 ahc->channel = 'A';
 2442                 break;
 2443         case AHC_394X_SLOT_CHANNEL_B:
 2444                 ahc->channel = 'B';
 2445                 break;
 2446         default:
 2447                 printf("adapter at unexpected slot %d\n"
 2448                        "unable to map to a channel\n",
 2449                        aic_get_pci_slot(pci));
 2450                 ahc->channel = 'A';
 2451         }
 2452         return (0);
 2453 }
 2454 
 2455 static int
 2456 ahc_aha398XX_setup(struct ahc_softc *ahc)
 2457 {
 2458         aic_dev_softc_t pci;
 2459 
 2460         pci = ahc->dev_softc;
 2461         switch (aic_get_pci_slot(pci)) {
 2462         case AHC_398X_SLOT_CHANNEL_A:
 2463                 ahc->channel = 'A';
 2464                 break;
 2465         case AHC_398X_SLOT_CHANNEL_B:
 2466                 ahc->channel = 'B';
 2467                 break;
 2468         case AHC_398X_SLOT_CHANNEL_C:
 2469                 ahc->channel = 'C';
 2470                 break;
 2471         default:
 2472                 printf("adapter at unexpected slot %d\n"
 2473                        "unable to map to a channel\n",
 2474                        aic_get_pci_slot(pci));
 2475                 ahc->channel = 'A';
 2476                 break;
 2477         }
 2478         ahc->flags |= AHC_LARGE_SEEPROM;
 2479         return (0);
 2480 }
 2481 
 2482 static int
 2483 ahc_aha494XX_setup(struct ahc_softc *ahc)
 2484 {
 2485         aic_dev_softc_t pci;
 2486 
 2487         pci = ahc->dev_softc;
 2488         switch (aic_get_pci_slot(pci)) {
 2489         case AHC_494X_SLOT_CHANNEL_A:
 2490                 ahc->channel = 'A';
 2491                 break;
 2492         case AHC_494X_SLOT_CHANNEL_B:
 2493                 ahc->channel = 'B';
 2494                 break;
 2495         case AHC_494X_SLOT_CHANNEL_C:
 2496                 ahc->channel = 'C';
 2497                 break;
 2498         case AHC_494X_SLOT_CHANNEL_D:
 2499                 ahc->channel = 'D';
 2500                 break;
 2501         default:
 2502                 printf("adapter at unexpected slot %d\n"
 2503                        "unable to map to a channel\n",
 2504                        aic_get_pci_slot(pci));
 2505                 ahc->channel = 'A';
 2506         }
 2507         ahc->flags |= AHC_LARGE_SEEPROM;
 2508         return (0);
 2509 }

Cache object: 010180c1bdb9e8af7736a597a51256c8


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.