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ahc_pci.c revision 1.39
      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: ahc_pci.c,v 1.39 2003/04/19 19:34:23 fvdl Exp $
     43  *
     44  * //depot/aic7xxx/aic7xxx/aic7xxx_pci.c#57 $
     45  *
     46  * $FreeBSD: /repoman/r/ncvs/src/sys/dev/aic7xxx/aic7xxx_pci.c,v 1.22 2003/01/20 20:44:55 gibbs Exp $
     47  */
     48 /*
     49  * Ported from FreeBSD by Pascal Renauld, Network Storage Solutions, Inc. - April 2003
     50  */
     51 
     52 #include <sys/param.h>
     53 #include <sys/systm.h>
     54 #include <sys/malloc.h>
     55 #include <sys/kernel.h>
     56 #include <sys/queue.h>
     57 #include <sys/device.h>
     58 #include <sys/reboot.h>
     59 
     60 #include <machine/bus.h>
     61 #include <machine/intr.h>
     62 
     63 #include <dev/pci/pcireg.h>
     64 #include <dev/pci/pcivar.h>
     65 
     66 #define AHC_PCI_IOADDR	PCI_MAPREG_START	/* I/O Address */
     67 #define AHC_PCI_MEMADDR	(PCI_MAPREG_START + 4)	/* Mem I/O Address */
     68 
     69 #include <dev/ic/aic7xxx_osm.h>
     70 #include <dev/ic/aic7xxx_inline.h>
     71 
     72 #include <dev/ic/smc93cx6var.h>
     73 
     74 
     75 static __inline uint64_t
     76 ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
     77 {
     78 	uint64_t id;
     79 
     80 	id = subvendor
     81 	   | (subdevice << 16)
     82 	   | ((uint64_t)vendor << 32)
     83 	   | ((uint64_t)device << 48);
     84 
     85 	return (id);
     86 }
     87 
     88 #define ID_ALL_MASK			0xFFFFFFFFFFFFFFFFull
     89 #define ID_DEV_VENDOR_MASK		0xFFFFFFFF00000000ull
     90 #define ID_9005_GENERIC_MASK		0xFFF0FFFF00000000ull
     91 #define ID_9005_SISL_MASK		0x000FFFFF00000000ull
     92 #define ID_9005_SISL_ID			0x0005900500000000ull
     93 #define ID_AIC7850			0x5078900400000000ull
     94 #define ID_AHA_2902_04_10_15_20_30C	0x5078900478509004ull
     95 #define ID_AIC7855			0x5578900400000000ull
     96 #define ID_AIC7859			0x3860900400000000ull
     97 #define ID_AHA_2930CU			0x3860900438699004ull
     98 #define ID_AIC7860			0x6078900400000000ull
     99 #define ID_AIC7860C			0x6078900478609004ull
    100 #define ID_AHA_1480A			0x6075900400000000ull
    101 #define ID_AHA_2940AU_0			0x6178900400000000ull
    102 #define ID_AHA_2940AU_1			0x6178900478619004ull
    103 #define ID_AHA_2940AU_CN		0x2178900478219004ull
    104 #define ID_AHA_2930C_VAR		0x6038900438689004ull
    105 
    106 #define ID_AIC7870			0x7078900400000000ull
    107 #define ID_AHA_2940			0x7178900400000000ull
    108 #define ID_AHA_3940			0x7278900400000000ull
    109 #define ID_AHA_398X			0x7378900400000000ull
    110 #define ID_AHA_2944			0x7478900400000000ull
    111 #define ID_AHA_3944			0x7578900400000000ull
    112 #define ID_AHA_4944			0x7678900400000000ull
    113 
    114 #define ID_AIC7880			0x8078900400000000ull
    115 #define ID_AIC7880_B			0x8078900478809004ull
    116 #define ID_AHA_2940U			0x8178900400000000ull
    117 #define ID_AHA_3940U			0x8278900400000000ull
    118 #define ID_AHA_2944U			0x8478900400000000ull
    119 #define ID_AHA_3944U			0x8578900400000000ull
    120 #define ID_AHA_398XU			0x8378900400000000ull
    121 #define ID_AHA_4944U			0x8678900400000000ull
    122 #define ID_AHA_2940UB			0x8178900478819004ull
    123 #define ID_AHA_2930U			0x8878900478889004ull
    124 #define ID_AHA_2940U_PRO		0x8778900478879004ull
    125 #define ID_AHA_2940U_CN			0x0078900478009004ull
    126 
    127 #define ID_AIC7895			0x7895900478959004ull
    128 #define ID_AIC7895_ARO			0x7890900478939004ull
    129 #define ID_AIC7895_ARO_MASK		0xFFF0FFFFFFFFFFFFull
    130 #define ID_AHA_2940U_DUAL		0x7895900478919004ull
    131 #define ID_AHA_3940AU			0x7895900478929004ull
    132 #define ID_AHA_3944AU			0x7895900478949004ull
    133 
    134 #define ID_AIC7890			0x001F9005000F9005ull
    135 #define ID_AIC7890_ARO			0x00139005000F9005ull
    136 #define ID_AAA_131U2			0x0013900500039005ull
    137 #define ID_AHA_2930U2			0x0011900501819005ull
    138 #define ID_AHA_2940U2B			0x00109005A1009005ull
    139 #define ID_AHA_2940U2_OEM		0x0010900521809005ull
    140 #define ID_AHA_2940U2			0x00109005A1809005ull
    141 #define ID_AHA_2950U2B			0x00109005E1009005ull
    142 
    143 #define ID_AIC7892			0x008F9005FFFF9005ull
    144 #define ID_AIC7892_ARO			0x00839005FFFF9005ull
    145 #define ID_AHA_29160			0x00809005E2A09005ull
    146 #define ID_AHA_29160_CPQ		0x00809005E2A00E11ull
    147 #define ID_AHA_29160N			0x0080900562A09005ull
    148 #define ID_AHA_29160C			0x0080900562209005ull
    149 #define ID_AHA_29160B			0x00809005E2209005ull
    150 #define ID_AHA_19160B			0x0081900562A19005ull
    151 
    152 #define ID_AIC7896			0x005F9005FFFF9005ull
    153 #define ID_AIC7896_ARO			0x00539005FFFF9005ull
    154 #define ID_AHA_3950U2B_0		0x00509005FFFF9005ull
    155 #define ID_AHA_3950U2B_1		0x00509005F5009005ull
    156 #define ID_AHA_3950U2D_0		0x00519005FFFF9005ull
    157 #define ID_AHA_3950U2D_1		0x00519005B5009005ull
    158 
    159 #define ID_AIC7899			0x00CF9005FFFF9005ull
    160 #define ID_AIC7899_ARO			0x00C39005FFFF9005ull
    161 #define ID_AHA_3960D			0x00C09005F6209005ull
    162 #define ID_AHA_3960D_CPQ		0x00C09005F6200E11ull
    163 
    164 #define ID_AIC7810			0x1078900400000000ull
    165 #define ID_AIC7815			0x7815900400000000ull
    166 
    167 #define DEVID_9005_TYPE(id) ((id) & 0xF)
    168 #define		DEVID_9005_TYPE_HBA		0x0	/* Standard Card */
    169 #define		DEVID_9005_TYPE_AAA		0x3	/* RAID Card */
    170 #define		DEVID_9005_TYPE_SISL		0x5	/* Container ROMB */
    171 #define		DEVID_9005_TYPE_MB		0xF	/* On Motherboard */
    172 
    173 #define DEVID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
    174 #define		DEVID_9005_MAXRATE_U160		0x0
    175 #define		DEVID_9005_MAXRATE_ULTRA2	0x1
    176 #define		DEVID_9005_MAXRATE_ULTRA	0x2
    177 #define		DEVID_9005_MAXRATE_FAST		0x3
    178 
    179 #define DEVID_9005_MFUNC(id) (((id) & 0x40) >> 6)
    180 
    181 #define DEVID_9005_CLASS(id) (((id) & 0xFF00) >> 8)
    182 #define		DEVID_9005_CLASS_SPI		0x0	/* Parallel SCSI */
    183 
    184 #define SUBID_9005_TYPE(id) ((id) & 0xF)
    185 #define		SUBID_9005_TYPE_MB		0xF	/* On Motherboard */
    186 #define		SUBID_9005_TYPE_CARD		0x0	/* Standard Card */
    187 #define		SUBID_9005_TYPE_LCCARD		0x1	/* Low Cost Card */
    188 #define		SUBID_9005_TYPE_RAID		0x3	/* Combined with Raid */
    189 
    190 #define SUBID_9005_TYPE_KNOWN(id)			\
    191 	  ((((id) & 0xF) == SUBID_9005_TYPE_MB)		\
    192 	|| (((id) & 0xF) == SUBID_9005_TYPE_CARD)	\
    193 	|| (((id) & 0xF) == SUBID_9005_TYPE_LCCARD)	\
    194 	|| (((id) & 0xF) == SUBID_9005_TYPE_RAID))
    195 
    196 #define SUBID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
    197 #define		SUBID_9005_MAXRATE_ULTRA2	0x0
    198 #define		SUBID_9005_MAXRATE_ULTRA	0x1
    199 #define		SUBID_9005_MAXRATE_U160		0x2
    200 #define		SUBID_9005_MAXRATE_RESERVED	0x3
    201 
    202 #define SUBID_9005_SEEPTYPE(id)						\
    203 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
    204 	 ? ((id) & 0xC0) >> 6						\
    205 	 : ((id) & 0x300) >> 8)
    206 #define		SUBID_9005_SEEPTYPE_NONE	0x0
    207 #define		SUBID_9005_SEEPTYPE_1K		0x1
    208 #define		SUBID_9005_SEEPTYPE_2K_4K	0x2
    209 #define		SUBID_9005_SEEPTYPE_RESERVED	0x3
    210 #define SUBID_9005_AUTOTERM(id)						\
    211 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
    212 	 ? (((id) & 0x400) >> 10) == 0					\
    213 	 : (((id) & 0x40) >> 6) == 0)
    214 
    215 #define SUBID_9005_NUMCHAN(id)						\
    216 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
    217 	 ? ((id) & 0x300) >> 8						\
    218 	 : ((id) & 0xC00) >> 10)
    219 
    220 #define SUBID_9005_LEGACYCONN(id)					\
    221 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
    222 	 ? 0								\
    223 	 : ((id) & 0x80) >> 7)
    224 
    225 #define SUBID_9005_MFUNCENB(id)						\
    226 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
    227 	 ? ((id) & 0x800) >> 11						\
    228 	 : ((id) & 0x1000) >> 12)
    229 /*
    230  * Informational only. Should use chip register to be
    231  * certain, but may be use in identification strings.
    232  */
    233 #define SUBID_9005_CARD_SCSIWIDTH_MASK	0x2000
    234 #define SUBID_9005_CARD_PCIWIDTH_MASK	0x4000
    235 #define SUBID_9005_CARD_SEDIFF_MASK	0x8000
    236 
    237 static ahc_device_setup_t ahc_aic785X_setup;
    238 static ahc_device_setup_t ahc_aic7860_setup;
    239 static ahc_device_setup_t ahc_apa1480_setup;
    240 static ahc_device_setup_t ahc_aic7870_setup;
    241 static ahc_device_setup_t ahc_aha394X_setup;
    242 static ahc_device_setup_t ahc_aha494X_setup;
    243 static ahc_device_setup_t ahc_aha398X_setup;
    244 static ahc_device_setup_t ahc_aic7880_setup;
    245 static ahc_device_setup_t ahc_aha2940Pro_setup;
    246 static ahc_device_setup_t ahc_aha394XU_setup;
    247 static ahc_device_setup_t ahc_aha398XU_setup;
    248 static ahc_device_setup_t ahc_aic7890_setup;
    249 static ahc_device_setup_t ahc_aic7892_setup;
    250 static ahc_device_setup_t ahc_aic7895_setup;
    251 static ahc_device_setup_t ahc_aic7896_setup;
    252 static ahc_device_setup_t ahc_aic7899_setup;
    253 static ahc_device_setup_t ahc_aha29160C_setup;
    254 static ahc_device_setup_t ahc_raid_setup;
    255 static ahc_device_setup_t ahc_aha394XX_setup;
    256 static ahc_device_setup_t ahc_aha494XX_setup;
    257 static ahc_device_setup_t ahc_aha398XX_setup;
    258 
    259 struct ahc_pci_identity ahc_pci_ident_table [] =
    260 {
    261 	/* aic7850 based controllers */
    262 	{
    263 		ID_AHA_2902_04_10_15_20_30C,
    264 		ID_ALL_MASK,
    265 		"Adaptec 2902/04/10/15/20/30C SCSI adapter",
    266 		ahc_aic785X_setup
    267 	},
    268 	/* aic7860 based controllers */
    269 	{
    270 		ID_AHA_2930CU,
    271 		ID_ALL_MASK,
    272 		"Adaptec 2930CU SCSI adapter",
    273 		ahc_aic7860_setup
    274 	},
    275 	{
    276 		ID_AHA_1480A & ID_DEV_VENDOR_MASK,
    277 		ID_DEV_VENDOR_MASK,
    278 		"Adaptec 1480A Ultra SCSI adapter",
    279 		ahc_apa1480_setup
    280 	},
    281 	{
    282 		ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
    283 		ID_DEV_VENDOR_MASK,
    284 		"Adaptec 2940A Ultra SCSI adapter",
    285 		ahc_aic7860_setup
    286 	},
    287 	{
    288 		ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
    289 		ID_DEV_VENDOR_MASK,
    290 		"Adaptec 2940A/CN Ultra SCSI adapter",
    291 		ahc_aic7860_setup
    292 	},
    293 	{
    294 		ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
    295 		ID_DEV_VENDOR_MASK,
    296 		"Adaptec 2930C Ultra SCSI adapter (VAR)",
    297 		ahc_aic7860_setup
    298 	},
    299 	/* aic7870 based controllers */
    300 	{
    301 		ID_AHA_2940,
    302 		ID_ALL_MASK,
    303 		"Adaptec 2940 SCSI adapter",
    304 		ahc_aic7870_setup
    305 	},
    306 	{
    307 		ID_AHA_3940,
    308 		ID_ALL_MASK,
    309 		"Adaptec 3940 SCSI adapter",
    310 		ahc_aha394X_setup
    311 	},
    312 	{
    313 		ID_AHA_398X,
    314 		ID_ALL_MASK,
    315 		"Adaptec 398X SCSI RAID adapter",
    316 		ahc_aha398X_setup
    317 	},
    318 	{
    319 		ID_AHA_2944,
    320 		ID_ALL_MASK,
    321 		"Adaptec 2944 SCSI adapter",
    322 		ahc_aic7870_setup
    323 	},
    324 	{
    325 		ID_AHA_3944,
    326 		ID_ALL_MASK,
    327 		"Adaptec 3944 SCSI adapter",
    328 		ahc_aha394X_setup
    329 	},
    330 	{
    331 		ID_AHA_4944,
    332 		ID_ALL_MASK,
    333 		"Adaptec 4944 SCSI adapter",
    334 		ahc_aha494X_setup
    335 	},
    336 	/* aic7880 based controllers */
    337 	{
    338 		ID_AHA_2940U & ID_DEV_VENDOR_MASK,
    339 		ID_DEV_VENDOR_MASK,
    340 		"Adaptec 2940 Ultra SCSI adapter",
    341 		ahc_aic7880_setup
    342 	},
    343 	{
    344 		ID_AHA_3940U & ID_DEV_VENDOR_MASK,
    345 		ID_DEV_VENDOR_MASK,
    346 		"Adaptec 3940 Ultra SCSI adapter",
    347 		ahc_aha394XU_setup
    348 	},
    349 	{
    350 		ID_AHA_2944U & ID_DEV_VENDOR_MASK,
    351 		ID_DEV_VENDOR_MASK,
    352 		"Adaptec 2944 Ultra SCSI adapter",
    353 		ahc_aic7880_setup
    354 	},
    355 	{
    356 		ID_AHA_3944U & ID_DEV_VENDOR_MASK,
    357 		ID_DEV_VENDOR_MASK,
    358 		"Adaptec 3944 Ultra SCSI adapter",
    359 		ahc_aha394XU_setup
    360 	},
    361 	{
    362 		ID_AHA_398XU & ID_DEV_VENDOR_MASK,
    363 		ID_DEV_VENDOR_MASK,
    364 		"Adaptec 398X Ultra SCSI RAID adapter",
    365 		ahc_aha398XU_setup
    366 	},
    367 	{
    368 		/*
    369 		 * XXX Don't know the slot numbers
    370 		 * so we can't identify channels
    371 		 */
    372 		ID_AHA_4944U & ID_DEV_VENDOR_MASK,
    373 		ID_DEV_VENDOR_MASK,
    374 		"Adaptec 4944 Ultra SCSI adapter",
    375 		ahc_aic7880_setup
    376 	},
    377 	{
    378 		ID_AHA_2930U & ID_DEV_VENDOR_MASK,
    379 		ID_DEV_VENDOR_MASK,
    380 		"Adaptec 2930 Ultra SCSI adapter",
    381 		ahc_aic7880_setup
    382 	},
    383 	{
    384 		ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
    385 		ID_DEV_VENDOR_MASK,
    386 		"Adaptec 2940 Pro Ultra SCSI adapter",
    387 		ahc_aha2940Pro_setup
    388 	},
    389 	{
    390 		ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
    391 		ID_DEV_VENDOR_MASK,
    392 		"Adaptec 2940/CN Ultra SCSI adapter",
    393 		ahc_aic7880_setup
    394 	},
    395 	/* Ignore all SISL (AAC on MB) based controllers. */
    396 	{
    397 		ID_9005_SISL_ID,
    398 		ID_9005_SISL_MASK,
    399 		NULL,
    400 		NULL
    401 	},
    402 	/* aic7890 based controllers */
    403 	{
    404 		ID_AHA_2930U2,
    405 		ID_ALL_MASK,
    406 		"Adaptec 2930 Ultra2 SCSI adapter",
    407 		ahc_aic7890_setup
    408 	},
    409 	{
    410 		ID_AHA_2940U2B,
    411 		ID_ALL_MASK,
    412 		"Adaptec 2940B Ultra2 SCSI adapter",
    413 		ahc_aic7890_setup
    414 	},
    415 	{
    416 		ID_AHA_2940U2_OEM,
    417 		ID_ALL_MASK,
    418 		"Adaptec 2940 Ultra2 SCSI adapter (OEM)",
    419 		ahc_aic7890_setup
    420 	},
    421 	{
    422 		ID_AHA_2940U2,
    423 		ID_ALL_MASK,
    424 		"Adaptec 2940 Ultra2 SCSI adapter",
    425 		ahc_aic7890_setup
    426 	},
    427 	{
    428 		ID_AHA_2950U2B,
    429 		ID_ALL_MASK,
    430 		"Adaptec 2950 Ultra2 SCSI adapter",
    431 		ahc_aic7890_setup
    432 	},
    433 	{
    434 		ID_AIC7890_ARO,
    435 		ID_ALL_MASK,
    436 		"Adaptec aic7890/91 Ultra2 SCSI adapter (ARO)",
    437 		ahc_aic7890_setup
    438 	},
    439 	{
    440 		ID_AAA_131U2,
    441 		ID_ALL_MASK,
    442 		"Adaptec AAA-131 Ultra2 RAID adapter",
    443 		ahc_aic7890_setup
    444 	},
    445 	/* aic7892 based controllers */
    446 	{
    447 		ID_AHA_29160,
    448 		ID_ALL_MASK,
    449 		"Adaptec 29160 Ultra160 SCSI adapter",
    450 		ahc_aic7892_setup
    451 	},
    452 	{
    453 		ID_AHA_29160_CPQ,
    454 		ID_ALL_MASK,
    455 		"Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
    456 		ahc_aic7892_setup
    457 	},
    458 	{
    459 		ID_AHA_29160N,
    460 		ID_ALL_MASK,
    461 		"Adaptec 29160N Ultra160 SCSI adapter",
    462 		ahc_aic7892_setup
    463 	},
    464 	{
    465 		ID_AHA_29160C,
    466 		ID_ALL_MASK,
    467 		"Adaptec 29160C Ultra160 SCSI adapter",
    468 		ahc_aha29160C_setup
    469 	},
    470 	{
    471 		ID_AHA_29160B,
    472 		ID_ALL_MASK,
    473 		"Adaptec 29160B Ultra160 SCSI adapter",
    474 		ahc_aic7892_setup
    475 	},
    476 	{
    477 		ID_AHA_19160B,
    478 		ID_ALL_MASK,
    479 		"Adaptec 19160B Ultra160 SCSI adapter",
    480 		ahc_aic7892_setup
    481 	},
    482 	{
    483 		ID_AIC7892_ARO,
    484 		ID_ALL_MASK,
    485 		"Adaptec aic7892 Ultra160 SCSI adapter (ARO)",
    486 		ahc_aic7892_setup
    487 	},
    488 	/* aic7895 based controllers */
    489 	{
    490 		ID_AHA_2940U_DUAL,
    491 		ID_ALL_MASK,
    492 		"Adaptec 2940/DUAL Ultra SCSI adapter",
    493 		ahc_aic7895_setup
    494 	},
    495 	{
    496 		ID_AHA_3940AU,
    497 		ID_ALL_MASK,
    498 		"Adaptec 3940A Ultra SCSI adapter",
    499 		ahc_aic7895_setup
    500 	},
    501 	{
    502 		ID_AHA_3944AU,
    503 		ID_ALL_MASK,
    504 		"Adaptec 3944A Ultra SCSI adapter",
    505 		ahc_aic7895_setup
    506 	},
    507 	{
    508 		ID_AIC7895_ARO,
    509 		ID_AIC7895_ARO_MASK,
    510 		"Adaptec aic7895 Ultra SCSI adapter (ARO)",
    511 		ahc_aic7895_setup
    512 	},
    513 	/* aic7896/97 based controllers */
    514 	{
    515 		ID_AHA_3950U2B_0,
    516 		ID_ALL_MASK,
    517 		"Adaptec 3950B Ultra2 SCSI adapter",
    518 		ahc_aic7896_setup
    519 	},
    520 	{
    521 		ID_AHA_3950U2B_1,
    522 		ID_ALL_MASK,
    523 		"Adaptec 3950B Ultra2 SCSI adapter",
    524 		ahc_aic7896_setup
    525 	},
    526 	{
    527 		ID_AHA_3950U2D_0,
    528 		ID_ALL_MASK,
    529 		"Adaptec 3950D Ultra2 SCSI adapter",
    530 		ahc_aic7896_setup
    531 	},
    532 	{
    533 		ID_AHA_3950U2D_1,
    534 		ID_ALL_MASK,
    535 		"Adaptec 3950D Ultra2 SCSI adapter",
    536 		ahc_aic7896_setup
    537 	},
    538 	{
    539 		ID_AIC7896_ARO,
    540 		ID_ALL_MASK,
    541 		"Adaptec aic7896/97 Ultra2 SCSI adapter (ARO)",
    542 		ahc_aic7896_setup
    543 	},
    544 	/* aic7899 based controllers */
    545 	{
    546 		ID_AHA_3960D,
    547 		ID_ALL_MASK,
    548 		"Adaptec 3960D Ultra160 SCSI adapter",
    549 		ahc_aic7899_setup
    550 	},
    551 	{
    552 		ID_AHA_3960D_CPQ,
    553 		ID_ALL_MASK,
    554 		"Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
    555 		ahc_aic7899_setup
    556 	},
    557 	{
    558 		ID_AIC7899_ARO,
    559 		ID_ALL_MASK,
    560 		"Adaptec aic7899 Ultra160 SCSI adapter (ARO)",
    561 		ahc_aic7899_setup
    562 	},
    563 	/* Generic chip probes for devices we don't know 'exactly' */
    564 	{
    565 		ID_AIC7850 & ID_DEV_VENDOR_MASK,
    566 		ID_DEV_VENDOR_MASK,
    567 		"Adaptec aic7850 SCSI adapter",
    568 		ahc_aic785X_setup
    569 	},
    570 	{
    571 		ID_AIC7855 & ID_DEV_VENDOR_MASK,
    572 		ID_DEV_VENDOR_MASK,
    573 		"Adaptec aic7855 SCSI adapter",
    574 		ahc_aic785X_setup
    575 	},
    576 	{
    577 		ID_AIC7859 & ID_DEV_VENDOR_MASK,
    578 		ID_DEV_VENDOR_MASK,
    579 		"Adaptec aic7859 SCSI adapter",
    580 		ahc_aic7860_setup
    581 	},
    582 	{
    583 		ID_AIC7860 & ID_DEV_VENDOR_MASK,
    584 		ID_DEV_VENDOR_MASK,
    585 		"Adaptec aic7860 Ultra SCSI adapter",
    586 		ahc_aic7860_setup
    587 	},
    588 	{
    589 		ID_AIC7870 & ID_DEV_VENDOR_MASK,
    590 		ID_DEV_VENDOR_MASK,
    591 		"Adaptec aic7870 SCSI adapter",
    592 		ahc_aic7870_setup
    593 	},
    594 	{
    595 		ID_AIC7880 & ID_DEV_VENDOR_MASK,
    596 		ID_DEV_VENDOR_MASK,
    597 		"Adaptec aic7880 Ultra SCSI adapter",
    598 		ahc_aic7880_setup
    599 	},
    600 	{
    601 		ID_AIC7890 & ID_9005_GENERIC_MASK,
    602 		ID_9005_GENERIC_MASK,
    603 		"Adaptec aic7890/91 Ultra2 SCSI adapter",
    604 		ahc_aic7890_setup
    605 	},
    606 	{
    607 		ID_AIC7892 & ID_9005_GENERIC_MASK,
    608 		ID_9005_GENERIC_MASK,
    609 		"Adaptec aic7892 Ultra160 SCSI adapter",
    610 		ahc_aic7892_setup
    611 	},
    612 	{
    613 		ID_AIC7895 & ID_DEV_VENDOR_MASK,
    614 		ID_DEV_VENDOR_MASK,
    615 		"Adaptec aic7895 Ultra SCSI adapter",
    616 		ahc_aic7895_setup
    617 	},
    618 	{
    619 		ID_AIC7896 & ID_9005_GENERIC_MASK,
    620 		ID_9005_GENERIC_MASK,
    621 		"Adaptec aic7896/97 Ultra2 SCSI adapter",
    622 		ahc_aic7896_setup
    623 	},
    624 	{
    625 		ID_AIC7899 & ID_9005_GENERIC_MASK,
    626 		ID_9005_GENERIC_MASK,
    627 		"Adaptec aic7899 Ultra160 SCSI adapter",
    628 		ahc_aic7899_setup
    629 	},
    630 	{
    631 		ID_AIC7810 & ID_DEV_VENDOR_MASK,
    632 		ID_DEV_VENDOR_MASK,
    633 		"Adaptec aic7810 RAID memory controller",
    634 		ahc_raid_setup
    635 	},
    636 	{
    637 		ID_AIC7815 & ID_DEV_VENDOR_MASK,
    638 		ID_DEV_VENDOR_MASK,
    639 		"Adaptec aic7815 RAID memory controller",
    640 		ahc_raid_setup
    641 	}
    642 };
    643 
    644 const u_int ahc_num_pci_devs = NUM_ELEMENTS(ahc_pci_ident_table);
    645 
    646 #define AHC_394X_SLOT_CHANNEL_A	4
    647 #define AHC_394X_SLOT_CHANNEL_B	5
    648 
    649 #define AHC_398X_SLOT_CHANNEL_A	4
    650 #define AHC_398X_SLOT_CHANNEL_B	8
    651 #define AHC_398X_SLOT_CHANNEL_C	12
    652 
    653 #define AHC_494X_SLOT_CHANNEL_A	4
    654 #define AHC_494X_SLOT_CHANNEL_B	5
    655 #define AHC_494X_SLOT_CHANNEL_C	6
    656 #define AHC_494X_SLOT_CHANNEL_D	7
    657 
    658 #define	DEVCONFIG		0x40
    659 #define		PCIERRGENDIS	0x80000000ul
    660 #define		SCBSIZE32	0x00010000ul	/* aic789X only */
    661 #define		REXTVALID	0x00001000ul	/* ultra cards only */
    662 #define		MPORTMODE	0x00000400ul	/* aic7870+ only */
    663 #define		RAMPSM		0x00000200ul	/* aic7870+ only */
    664 #define		VOLSENSE	0x00000100ul
    665 #define		PCI64BIT	0x00000080ul	/* 64Bit PCI bus (Ultra2 Only)*/
    666 #define		SCBRAMSEL	0x00000080ul
    667 #define		MRDCEN		0x00000040ul
    668 #define		EXTSCBTIME	0x00000020ul	/* aic7870 only */
    669 #define		EXTSCBPEN	0x00000010ul	/* aic7870 only */
    670 #define		BERREN		0x00000008ul
    671 #define		DACEN		0x00000004ul
    672 #define		STPWLEVEL	0x00000002ul
    673 #define		DIFACTNEGEN	0x00000001ul	/* aic7870 only */
    674 
    675 #define	CSIZE_LATTIME		0x0c
    676 #define		CACHESIZE	0x0000003ful	/* only 5 bits */
    677 #define		LATTIME		0x0000ff00ul
    678 
    679 /* PCI STATUS definitions */
    680 #define	DPE	0x80
    681 #define SSE	0x40
    682 #define	RMA	0x20
    683 #define	RTA	0x10
    684 #define STA	0x08
    685 #define DPR	0x01
    686 
    687 static int ahc_9005_subdevinfo_valid(uint16_t vendor, uint16_t device,
    688 				     uint16_t subvendor, uint16_t subdevice);
    689 static int ahc_ext_scbram_present(struct ahc_softc *ahc);
    690 static void ahc_scbram_config(struct ahc_softc *ahc, int enable,
    691 				  int pcheck, int fast, int large);
    692 static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
    693 
    694 int ahc_pci_probe __P((struct device *, struct cfdata *, void *));
    695 void ahc_pci_attach __P((struct device *, struct device *, void *));
    696 
    697 
    698 CFATTACH_DECL(ahc_pci, sizeof(struct ahc_softc),
    699     ahc_pci_probe, ahc_pci_attach, NULL, NULL);
    700 
    701 const struct ahc_pci_identity *
    702 ahc_find_pci_device(id, subid, func)
    703 	pcireg_t id, subid;
    704 	u_int func;
    705 {
    706 	u_int64_t  full_id;
    707 	const struct	   ahc_pci_identity *entry;
    708 	u_int	   i;
    709 
    710 	full_id = ahc_compose_id(PCI_PRODUCT(id), PCI_VENDOR(id),
    711 				 PCI_PRODUCT(subid), PCI_VENDOR(subid));
    712 
    713 	/*
    714 	 * If the second function is not hooked up, ignore it.
    715 	 * Unfortunately, not all MB vendors implement the
    716 	 * subdevice ID as per the Adaptec spec, so do our best
    717 	 * to sanity check it prior to accepting the subdevice
    718 	 * ID as valid.
    719 	 */
    720 	if (func > 0
    721 	    && ahc_9005_subdevinfo_valid(PCI_VENDOR(id), PCI_PRODUCT(id),
    722 					 PCI_VENDOR(subid), PCI_PRODUCT(subid))
    723 	    && SUBID_9005_MFUNCENB(PCI_PRODUCT(subid)) == 0)
    724 		return (NULL);
    725 
    726 	for (i = 0; i < ahc_num_pci_devs; i++) {
    727 		entry = &ahc_pci_ident_table[i];
    728 		if (entry->full_id == (full_id & entry->id_mask))
    729 			return (entry);
    730 	}
    731 	return (NULL);
    732 }
    733 
    734 int
    735 ahc_pci_probe(parent, match, aux)
    736 	struct device *parent;
    737 	struct cfdata *match;
    738 	void *aux;
    739 {
    740 	struct pci_attach_args *pa = aux;
    741 	const struct	   ahc_pci_identity *entry;
    742 	pcireg_t   subid;
    743 
    744 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
    745 	entry = ahc_find_pci_device(pa->pa_id, subid, pa->pa_function);
    746 	return entry != NULL ? 1 : 0;
    747 }
    748 
    749 void
    750 ahc_pci_attach(parent, self, aux)
    751 	struct device *parent, *self;
    752 	void *aux;
    753 {
    754 	struct pci_attach_args *pa = aux;
    755 	const struct	   ahc_pci_identity *entry;
    756 	struct		   ahc_softc *ahc = (void *)self;
    757 	pcireg_t	   command;
    758 	u_int		   our_id = 0;
    759 	u_int		   sxfrctl1;
    760 	u_int		   scsiseq;
    761 	u_int		   sblkctl;
    762 	uint8_t 	   dscommand0;
    763 	uint32_t	   devconfig;
    764 	int		   error;
    765 	pcireg_t	   subid;
    766 	int		   ioh_valid, memh_valid;
    767 	bus_space_tag_t    st, iot;
    768 	bus_space_handle_t sh, ioh;
    769 #ifdef AHC_ALLOW_MEMIO
    770 	bus_space_tag_t    memt;
    771 	bus_space_handle_t memh;
    772 	pcireg_t memtype;
    773 #endif
    774 	pci_intr_handle_t  ih;
    775 	const char        *intrstr;
    776 	struct ahc_pci_busdata *bd;
    777 
    778 	ahc_set_name(ahc, ahc->sc_dev.dv_xname);
    779 	ahc->parent_dmat = pa->pa_dmat;
    780 
    781 	command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    782 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
    783 	entry = ahc_find_pci_device(pa->pa_id, subid, pa->pa_function);
    784 	if (entry == NULL)
    785 		return;
    786 
    787 	/* Keep information about the PCI bus */
    788 	bd = malloc(sizeof (struct ahc_pci_busdata), M_DEVBUF, M_NOWAIT);
    789 	if (bd == NULL) {
    790 		printf("%s: unable to allocate bus-specific data\n", ahc_name(ahc));
    791 		return;
    792 	}
    793 	memset(bd, 0, sizeof(struct ahc_pci_busdata));
    794 
    795 	bd->pc = pa->pa_pc;
    796 	bd->tag = pa->pa_tag;
    797 	bd->func = pa->pa_function;
    798 	bd->dev = pa->pa_device;
    799 	bd->class = pa->pa_class;
    800 
    801 	ahc->bd = bd;
    802 
    803 	ahc->description = entry->name;
    804 
    805 	error = entry->setup(ahc);
    806 	if (error != 0)
    807 		return;
    808 
    809 	ioh_valid = memh_valid = 0;
    810 
    811 #ifdef AHC_ALLOW_MEMIO
    812 	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, AHC_PCI_MEMADDR);
    813 	switch (memtype) {
    814 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
    815 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
    816 		memh_valid = (pci_mapreg_map(pa, AHC_PCI_MEMADDR,
    817 					     memtype, 0, &memt, &memh, NULL, NULL) == 0);
    818 		break;
    819 	default:
    820 		memh_valid = 0;
    821 	}
    822 #endif
    823 	ioh_valid = (pci_mapreg_map(pa, AHC_PCI_IOADDR,
    824 				    PCI_MAPREG_TYPE_IO, 0, &iot,
    825 				    &ioh, NULL, NULL) == 0);
    826 #if 0
    827 	printf("%s: mem mapping: memt 0x%x, memh 0x%x, iot 0x%x, ioh 0x%lx\n",
    828 	       ahc_name(ahc), memt, (u_int32_t)memh, (u_int32_t)iot, ioh);
    829 #endif
    830 
    831 	if (ioh_valid) {
    832 		st = iot;
    833 		sh = ioh;
    834 #ifdef AHC_ALLOW_MEMIO
    835 	} else if (memh_valid) {
    836 		st = memt;
    837 		sh = memh;
    838 #endif
    839 	} else {
    840 		printf(": unable to map registers\n");
    841 		return;
    842 	}
    843 	ahc->tag = st;
    844 	ahc->bsh = sh;
    845 
    846 	ahc->chip |= AHC_PCI;
    847 	/*
    848 	 * Before we continue probing the card, ensure that
    849 	 * its interrupts are *disabled*.  We don't want
    850 	 * a misstep to hang the machine in an interrupt
    851 	 * storm.
    852 	 */
    853 	ahc_intr_enable(ahc, FALSE);
    854 
    855 	devconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
    856 
    857 	/*
    858 	 * If we need to support high memory, enable dual
    859 	 * address cycles.  This bit must be set to enable
    860 	 * high address bit generation even if we are on a
    861 	 * 64bit bus (PCI64BIT set in devconfig).
    862 	 */
    863 	if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) {
    864 
    865 		if (1/*bootverbose*/)
    866 			printf("%s: Enabling 39Bit Addressing\n",
    867 			       ahc_name(ahc));
    868 		devconfig |= DACEN;
    869 	}
    870 
    871 	/* Ensure that pci error generation, a test feature, is disabled. */
    872 	devconfig |= PCIERRGENDIS;
    873 
    874 	pci_conf_write(pa->pa_pc, pa->pa_tag, DEVCONFIG, devconfig);
    875 
    876 	/* Ensure busmastering is enabled */
    877 	command |= PCI_COMMAND_MASTER_ENABLE;;
    878 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    879 
    880 	/*
    881 	 * Disable PCI parity error reporting.  Users typically
    882 	 * do this to work around broken PCI chipsets that get
    883 	 * the parity timing wrong and thus generate lots of spurious
    884 	 * errors.
    885 	 */
    886 	if ((ahc->flags & AHC_DISABLE_PCI_PERR) != 0)
    887 	  command &= ~PCI_COMMAND_PARITY_ENABLE;
    888 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    889 
    890 	/* On all PCI adapters, we allow SCB paging */
    891 	ahc->flags |= AHC_PAGESCBS;
    892 	error = ahc_softc_init(ahc);
    893 	if (error != 0)
    894 		goto error_out;
    895 
    896 	ahc->bus_intr = ahc_pci_intr;
    897 
    898 	/* Remember how the card was setup in case there is no SEEPROM */
    899 	if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) {
    900 		ahc_pause(ahc);
    901 		if ((ahc->features & AHC_ULTRA2) != 0)
    902 			our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
    903 		else
    904 			our_id = ahc_inb(ahc, SCSIID) & OID;
    905 		sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
    906 		scsiseq = ahc_inb(ahc, SCSISEQ);
    907 	} else {
    908 		sxfrctl1 = STPWEN;
    909 		our_id = 7;
    910 		scsiseq = 0;
    911 	}
    912 
    913 	error = ahc_reset(ahc);
    914 	if (error != 0)
    915 		goto error_out;
    916 
    917 	if ((ahc->features & AHC_DT) != 0) {
    918 		u_int sfunct;
    919 
    920 		/* Perform ALT-Mode Setup */
    921 		sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
    922 		ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
    923 		ahc_outb(ahc, OPTIONMODE,
    924 			 OPTIONMODE_DEFAULTS|AUTOACKEN|BUSFREEREV|EXPPHASEDIS);
    925 		ahc_outb(ahc, SFUNCT, sfunct);
    926 
    927 		/* Normal mode setup */
    928 		ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
    929 					  |TARGCRCENDEN);
    930 	}
    931 
    932 	if (pci_intr_map(pa, &ih)) {
    933 		printf("%s: couldn't map interrupt\n", ahc_name(ahc));
    934 		ahc_free(ahc);
    935 		return;
    936 	}
    937 	intrstr = pci_intr_string(pa->pa_pc, ih);
    938 	ahc->ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, ahc_intr, ahc);
    939 	if (ahc->ih == NULL) {
    940 		printf("%s: couldn't establish interrupt",
    941 		       ahc->sc_dev.dv_xname);
    942 		if (intrstr != NULL)
    943 			printf(" at %s", intrstr);
    944 		printf("\n");
    945 		ahc_free(ahc);
    946 		return;
    947 	}
    948 	printf("\n");
    949 	if (intrstr != NULL)
    950 		printf("%s: interrupting at %s\n", ahc_name(ahc), intrstr);
    951 
    952 	dscommand0 = ahc_inb(ahc, DSCOMMAND0);
    953 	dscommand0 |= MPARCKEN|CACHETHEN;
    954 	if ((ahc->features & AHC_ULTRA2) != 0) {
    955 
    956 		/*
    957 		 * DPARCKEN doesn't work correctly on
    958 		 * some MBs so don't use it.
    959 		 */
    960 		dscommand0 &= ~DPARCKEN;
    961 	}
    962 
    963 	/*
    964 	 * Handle chips that must have cache line
    965 	 * streaming (dis/en)abled.
    966 	 */
    967 	if ((ahc->bugs & AHC_CACHETHEN_DIS_BUG) != 0)
    968 		dscommand0 |= CACHETHEN;
    969 
    970 	if ((ahc->bugs & AHC_CACHETHEN_BUG) != 0)
    971 		dscommand0 &= ~CACHETHEN;
    972 
    973 	ahc_outb(ahc, DSCOMMAND0, dscommand0);
    974 
    975 	ahc->pci_cachesize =
    976 	    pci_conf_read(pa->pa_pc, pa->pa_tag, CSIZE_LATTIME) & CACHESIZE;
    977 	ahc->pci_cachesize *= 4;
    978 
    979 	if ((ahc->bugs & AHC_PCI_2_1_RETRY_BUG) != 0
    980 	    && ahc->pci_cachesize == 4) {
    981 		pci_conf_write(pa->pa_pc, pa->pa_tag, CSIZE_LATTIME, 0);
    982 		ahc->pci_cachesize = 0;
    983 	}
    984 
    985 	/*
    986 	 * We cannot perform ULTRA speeds without the presence
    987 	 * of the external precision resistor.
    988 	 */
    989 	if ((ahc->features & AHC_ULTRA) != 0) {
    990 		uint32_t devconfig;
    991 
    992 		devconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
    993 		if ((devconfig & REXTVALID) == 0)
    994 			ahc->features &= ~AHC_ULTRA;
    995 	}
    996 
    997 	ahc->seep_config = malloc(sizeof(*ahc->seep_config),
    998 				  M_DEVBUF, M_NOWAIT);
    999 	if (ahc->seep_config == NULL)
   1000 		goto error_out;
   1001 
   1002 	memset(ahc->seep_config, 0, sizeof(*ahc->seep_config));
   1003 
   1004 	/* See if we have a SEEPROM and perform auto-term */
   1005 	ahc_check_extport(ahc, &sxfrctl1);
   1006 
   1007 	/*
   1008 	 * Take the LED out of diagnostic mode
   1009 	 */
   1010 	sblkctl = ahc_inb(ahc, SBLKCTL);
   1011 	ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
   1012 
   1013 	if ((ahc->features & AHC_ULTRA2) != 0) {
   1014 		ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MAX|WR_DFTHRSH_MAX);
   1015 	} else {
   1016 		ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
   1017 	}
   1018 
   1019 	if (ahc->flags & AHC_USEDEFAULTS) {
   1020 		/*
   1021 		 * PCI Adapter default setup
   1022 		 * Should only be used if the adapter does not have
   1023 		 * a SEEPROM.
   1024 		 */
   1025 		/* See if someone else set us up already */
   1026 		if ((ahc->flags & AHC_NO_BIOS_INIT) == 0
   1027 		 && scsiseq != 0) {
   1028 			printf("%s: Using left over BIOS settings\n",
   1029 				ahc_name(ahc));
   1030 			ahc->flags &= ~AHC_USEDEFAULTS;
   1031 			ahc->flags |= AHC_BIOS_ENABLED;
   1032 		} else {
   1033 			/*
   1034 			 * Assume only one connector and always turn
   1035 			 * on termination.
   1036 			 */
   1037  			our_id = 0x07;
   1038 			sxfrctl1 = STPWEN;
   1039 		}
   1040 		ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
   1041 
   1042 		ahc->our_id = our_id;
   1043 	}
   1044 
   1045 	/*
   1046 	 * Take a look to see if we have external SRAM.
   1047 	 * We currently do not attempt to use SRAM that is
   1048 	 * shared among multiple controllers.
   1049 	 */
   1050 	ahc_probe_ext_scbram(ahc);
   1051 
   1052 	/*
   1053 	 * Record our termination setting for the
   1054 	 * generic initialization routine.
   1055 	 */
   1056 	if ((sxfrctl1 & STPWEN) != 0)
   1057 		ahc->flags |= AHC_TERM_ENB_A;
   1058 
   1059 	if (ahc_init(ahc))
   1060 		goto error_out;
   1061 
   1062 	ahc_attach(ahc);
   1063 
   1064 	return;
   1065 
   1066  error_out:
   1067 	ahc_free(ahc);
   1068 	return;
   1069 }
   1070 
   1071 static int
   1072 ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor,
   1073 			  uint16_t subdevice, uint16_t subvendor)
   1074 {
   1075 	int result;
   1076 
   1077 	/* Default to invalid. */
   1078 	result = 0;
   1079 	if (vendor == 0x9005
   1080 	 && subvendor == 0x9005
   1081          && subdevice != device
   1082          && SUBID_9005_TYPE_KNOWN(subdevice) != 0) {
   1083 
   1084 		switch (SUBID_9005_TYPE(subdevice)) {
   1085 		case SUBID_9005_TYPE_MB:
   1086 			break;
   1087 		case SUBID_9005_TYPE_CARD:
   1088 		case SUBID_9005_TYPE_LCCARD:
   1089 			/*
   1090 			 * Currently only trust Adaptec cards to
   1091 			 * get the sub device info correct.
   1092 			 */
   1093 			if (DEVID_9005_TYPE(device) == DEVID_9005_TYPE_HBA)
   1094 				result = 1;
   1095 			break;
   1096 		case SUBID_9005_TYPE_RAID:
   1097 			break;
   1098 		default:
   1099 			break;
   1100 		}
   1101 	}
   1102 	return (result);
   1103 }
   1104 
   1105 
   1106 /*
   1107  * Test for the presense of external sram in an
   1108  * "unshared" configuration.
   1109  */
   1110 static int
   1111 ahc_ext_scbram_present(struct ahc_softc *ahc)
   1112 {
   1113 	u_int chip;
   1114 	int ramps;
   1115 	int single_user;
   1116 	uint32_t devconfig;
   1117 
   1118 	chip = ahc->chip & AHC_CHIPID_MASK;
   1119 	devconfig = pci_conf_read(ahc->bd->pc, ahc->bd->tag, DEVCONFIG);
   1120 	single_user = (devconfig & MPORTMODE) != 0;
   1121 
   1122 	if ((ahc->features & AHC_ULTRA2) != 0)
   1123 		ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
   1124 	else if (chip == AHC_AIC7895 || chip == AHC_AIC7895C)
   1125 		/*
   1126 		 * External SCBRAM arbitration is flakey
   1127 		 * on these chips.  Unfortunately this means
   1128 		 * we don't use the extra SCB ram space on the
   1129 		 * 3940AUW.
   1130 		 */
   1131 		ramps = 0;
   1132 	else if (chip >= AHC_AIC7870)
   1133 		ramps = (devconfig & RAMPSM) != 0;
   1134 	else
   1135 		ramps = 0;
   1136 
   1137 	if (ramps && single_user)
   1138 		return (1);
   1139 	return (0);
   1140 }
   1141 
   1142 /*
   1143  * Enable external scbram.
   1144  */
   1145 static void
   1146 ahc_scbram_config(struct ahc_softc *ahc, int enable, int pcheck,
   1147 		  int fast, int large)
   1148 {
   1149 	uint32_t devconfig;
   1150 
   1151 	if (ahc->features & AHC_MULTI_FUNC) {
   1152 		/*
   1153 		 * Set the SCB Base addr (highest address bit)
   1154 		 * depending on which channel we are.
   1155 		 */
   1156 		ahc_outb(ahc, SCBBADDR, ahc->bd->func);
   1157 	}
   1158 
   1159 	ahc->flags &= ~AHC_LSCBS_ENABLED;
   1160 	if (large)
   1161 		ahc->flags |= AHC_LSCBS_ENABLED;
   1162 	devconfig = pci_conf_read(ahc->bd->pc, ahc->bd->tag, DEVCONFIG);
   1163 	if ((ahc->features & AHC_ULTRA2) != 0) {
   1164 		u_int dscommand0;
   1165 
   1166 		dscommand0 = ahc_inb(ahc, DSCOMMAND0);
   1167 		if (enable)
   1168 			dscommand0 &= ~INTSCBRAMSEL;
   1169 		else
   1170 			dscommand0 |= INTSCBRAMSEL;
   1171 		if (large)
   1172 			dscommand0 &= ~USCBSIZE32;
   1173 		else
   1174 			dscommand0 |= USCBSIZE32;
   1175 		ahc_outb(ahc, DSCOMMAND0, dscommand0);
   1176 	} else {
   1177 		if (fast)
   1178 			devconfig &= ~EXTSCBTIME;
   1179 		else
   1180 			devconfig |= EXTSCBTIME;
   1181 		if (enable)
   1182 			devconfig &= ~SCBRAMSEL;
   1183 		else
   1184 			devconfig |= SCBRAMSEL;
   1185 		if (large)
   1186 			devconfig &= ~SCBSIZE32;
   1187 		else
   1188 			devconfig |= SCBSIZE32;
   1189 	}
   1190 	if (pcheck)
   1191 		devconfig |= EXTSCBPEN;
   1192 	else
   1193 		devconfig &= ~EXTSCBPEN;
   1194 
   1195 	pci_conf_write(ahc->bd->pc, ahc->bd->tag, DEVCONFIG, devconfig);
   1196 }
   1197 
   1198 /*
   1199  * Take a look to see if we have external SRAM.
   1200  * We currently do not attempt to use SRAM that is
   1201  * shared among multiple controllers.
   1202  */
   1203 static void
   1204 ahc_probe_ext_scbram(struct ahc_softc *ahc)
   1205 {
   1206 	int num_scbs;
   1207 	int test_num_scbs;
   1208 	int enable;
   1209 	int pcheck;
   1210 	int fast;
   1211 	int large;
   1212 
   1213 	enable = FALSE;
   1214 	pcheck = FALSE;
   1215 	fast = FALSE;
   1216 	large = FALSE;
   1217 	num_scbs = 0;
   1218 
   1219 	if (ahc_ext_scbram_present(ahc) == 0)
   1220 		goto done;
   1221 
   1222 	/*
   1223 	 * Probe for the best parameters to use.
   1224 	 */
   1225 	ahc_scbram_config(ahc, /*enable*/TRUE, pcheck, fast, large);
   1226 	num_scbs = ahc_probe_scbs(ahc);
   1227 	if (num_scbs == 0) {
   1228 		/* The SRAM wasn't really present. */
   1229 		goto done;
   1230 	}
   1231 	enable = TRUE;
   1232 
   1233 	/*
   1234 	 * Clear any outstanding parity error
   1235 	 * and ensure that parity error reporting
   1236 	 * is enabled.
   1237 	 */
   1238 	ahc_outb(ahc, SEQCTL, 0);
   1239 	ahc_outb(ahc, CLRINT, CLRPARERR);
   1240 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
   1241 
   1242 	/* Now see if we can do parity */
   1243 	ahc_scbram_config(ahc, enable, /*pcheck*/TRUE, fast, large);
   1244 	num_scbs = ahc_probe_scbs(ahc);
   1245 	if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
   1246 	 || (ahc_inb(ahc, ERROR) & MPARERR) == 0)
   1247 		pcheck = TRUE;
   1248 
   1249 	/* Clear any resulting parity error */
   1250 	ahc_outb(ahc, CLRINT, CLRPARERR);
   1251 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
   1252 
   1253 	/* Now see if we can do fast timing */
   1254 	ahc_scbram_config(ahc, enable, pcheck, /*fast*/TRUE, large);
   1255 	test_num_scbs = ahc_probe_scbs(ahc);
   1256 	if (test_num_scbs == num_scbs
   1257 	 && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
   1258 	  || (ahc_inb(ahc, ERROR) & MPARERR) == 0))
   1259 		fast = TRUE;
   1260 
   1261 	/*
   1262 	 * See if we can use large SCBs and still maintain
   1263 	 * the same overall count of SCBs.
   1264 	 */
   1265 	if ((ahc->features & AHC_LARGE_SCBS) != 0) {
   1266 		ahc_scbram_config(ahc, enable, pcheck, fast, /*large*/TRUE);
   1267 		test_num_scbs = ahc_probe_scbs(ahc);
   1268 		if (test_num_scbs >= num_scbs) {
   1269 			large = TRUE;
   1270 			num_scbs = test_num_scbs;
   1271 	 		if (num_scbs >= 64) {
   1272 				/*
   1273 				 * We have enough space to move the
   1274 				 * "busy targets table" into SCB space
   1275 				 * and make it qualify all the way to the
   1276 				 * lun level.
   1277 				 */
   1278 				ahc->flags |= AHC_SCB_BTT;
   1279 			}
   1280 		}
   1281 	}
   1282 done:
   1283 	/*
   1284 	 * Disable parity error reporting until we
   1285 	 * can load instruction ram.
   1286 	 */
   1287 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
   1288 	/* Clear any latched parity error */
   1289 	ahc_outb(ahc, CLRINT, CLRPARERR);
   1290 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
   1291 	if (1/*bootverbose*/ && enable) {
   1292 		printf("%s: External SRAM, %s access%s, %dbytes/SCB\n",
   1293 		       ahc_name(ahc), fast ? "fast" : "slow",
   1294 		       pcheck ? ", parity checking enabled" : "",
   1295 		       large ? 64 : 32);
   1296 	}
   1297 	ahc_scbram_config(ahc, enable, pcheck, fast, large);
   1298 }
   1299 
   1300 #if 0
   1301 /*
   1302  * Perform some simple tests that should catch situations where
   1303  * our registers are invalidly mapped.
   1304  */
   1305 int
   1306 ahc_pci_test_register_access(struct ahc_softc *ahc)
   1307 {
   1308 	int	 error;
   1309 	u_int	 status1;
   1310 	uint32_t cmd;
   1311 	uint8_t	 hcntrl;
   1312 
   1313 	error = EIO;
   1314 
   1315 	/*
   1316 	 * Enable PCI error interrupt status, but suppress NMIs
   1317 	 * generated by SERR raised due to target aborts.
   1318 	 */
   1319 	cmd = pci_conf_read(ahc->bd->pc, ahc->bd->tag, PCIR_COMMAND);
   1320 	pci_conf_write(ahc->bd->pc, ahc->bd->tag, PCIR_COMMAND,
   1321 		       cmd & ~PCIM_CMD_SERRESPEN);
   1322 
   1323 	/*
   1324 	 * First a simple test to see if any
   1325 	 * registers can be read.  Reading
   1326 	 * HCNTRL has no side effects and has
   1327 	 * at least one bit that is guaranteed to
   1328 	 * be zero so it is a good register to
   1329 	 * use for this test.
   1330 	 */
   1331 	hcntrl = ahc_inb(ahc, HCNTRL);
   1332 	if (hcntrl == 0xFF)
   1333 		goto fail;
   1334 
   1335 	/*
   1336 	 * Next create a situation where write combining
   1337 	 * or read prefetching could be initiated by the
   1338 	 * CPU or host bridge.  Our device does not support
   1339 	 * either, so look for data corruption and/or flagged
   1340 	 * PCI errors.
   1341 	 */
   1342 	ahc_outb(ahc, HCNTRL, hcntrl|PAUSE);
   1343 	while (ahc_is_paused(ahc) == 0)
   1344 		;
   1345 	ahc_outb(ahc, SEQCTL, PERRORDIS);
   1346 	ahc_outb(ahc, SCBPTR, 0);
   1347 	ahc_outl(ahc, SCB_BASE, 0x5aa555aa);
   1348 	if (ahc_inl(ahc, SCB_BASE) != 0x5aa555aa)
   1349 		goto fail;
   1350 
   1351 	status1 = pci_conf_read(ahc->bd->pc, ahc->bd->tag,
   1352 				PCI_COMMAND_STATUS_REG + 1);
   1353 	if ((status1 & STA) != 0)
   1354 		goto fail;
   1355 
   1356 	error = 0;
   1357 
   1358 fail:
   1359 	/* Silently clear any latched errors. */
   1360 	status1 = pci_conf_read(ahc->bd->pc, ahc->bd->tag, PCI_COMMAND_STATUS_REG + 1);
   1361 	ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
   1362 			     status1, /*bytes*/1);
   1363 	ahc_outb(ahc, CLRINT, CLRPARERR);
   1364 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
   1365 	ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
   1366 	return (error);
   1367 }
   1368 #endif
   1369 
   1370 void
   1371 ahc_pci_intr(struct ahc_softc *ahc)
   1372 {
   1373 	u_int error;
   1374 	u_int status1;
   1375 
   1376 	error = ahc_inb(ahc, ERROR);
   1377 	if ((error & PCIERRSTAT) == 0)
   1378 		return;
   1379 
   1380 	status1 = pci_conf_read(ahc->bd->pc, ahc->bd->tag, PCI_COMMAND_STATUS_REG);
   1381 
   1382 	printf("%s: PCI error Interrupt at seqaddr = 0x%x\n",
   1383 	      ahc_name(ahc),
   1384 	      ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8));
   1385 
   1386 	if (status1 & DPE) {
   1387 		printf("%s: Data Parity Error Detected during address "
   1388 		       "or write data phase\n", ahc_name(ahc));
   1389 	}
   1390 	if (status1 & SSE) {
   1391 		printf("%s: Signal System Error Detected\n", ahc_name(ahc));
   1392 	}
   1393 	if (status1 & RMA) {
   1394 		printf("%s: Received a Master Abort\n", ahc_name(ahc));
   1395 	}
   1396 	if (status1 & RTA) {
   1397 		printf("%s: Received a Target Abort\n", ahc_name(ahc));
   1398 	}
   1399 	if (status1 & STA) {
   1400 		printf("%s: Signaled a Target Abort\n", ahc_name(ahc));
   1401 	}
   1402 	if (status1 & DPR) {
   1403 		printf("%s: Data Parity Error has been reported via PERR#\n",
   1404 		       ahc_name(ahc));
   1405 	}
   1406 
   1407 	/* Clear latched errors. */
   1408 	pci_conf_write(ahc->bd->pc, ahc->bd->tag,  PCI_COMMAND_STATUS_REG, status1);
   1409 
   1410 	if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
   1411 		printf("%s: Latched PCIERR interrupt with "
   1412 		       "no status bits set\n", ahc_name(ahc));
   1413 	} else {
   1414 		ahc_outb(ahc, CLRINT, CLRPARERR);
   1415 	}
   1416 
   1417 	ahc_unpause(ahc);
   1418 }
   1419 
   1420 static int
   1421 ahc_aic785X_setup(struct ahc_softc *ahc)
   1422 {
   1423 	uint8_t rev;
   1424 
   1425 	ahc->channel = 'A';
   1426 	ahc->chip = AHC_AIC7850;
   1427 	ahc->features = AHC_AIC7850_FE;
   1428 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
   1429 	rev = PCI_REVISION(ahc->bd->class);
   1430 	if (rev >= 1)
   1431 		ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
   1432 	return (0);
   1433 }
   1434 
   1435 static int
   1436 ahc_aic7860_setup(struct ahc_softc *ahc)
   1437 {
   1438 	uint8_t rev;
   1439 
   1440 	ahc->channel = 'A';
   1441 	ahc->chip = AHC_AIC7860;
   1442 	ahc->features = AHC_AIC7860_FE;
   1443 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
   1444 	rev = PCI_REVISION(ahc->bd->class);
   1445 	if (rev >= 1)
   1446 		ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
   1447 	return (0);
   1448 }
   1449 
   1450 static int
   1451 ahc_apa1480_setup(struct ahc_softc *ahc)
   1452 {
   1453 	int error;
   1454 
   1455 	error = ahc_aic7860_setup(ahc);
   1456 	if (error != 0)
   1457 		return (error);
   1458 	ahc->features |= AHC_REMOVABLE;
   1459 	return (0);
   1460 }
   1461 
   1462 static int
   1463 ahc_aic7870_setup(struct ahc_softc *ahc)
   1464 {
   1465 
   1466 	ahc->channel = 'A';
   1467 	ahc->chip = AHC_AIC7870;
   1468 	ahc->features = AHC_AIC7870_FE;
   1469 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
   1470 	return (0);
   1471 }
   1472 
   1473 static int
   1474 ahc_aha394X_setup(struct ahc_softc *ahc)
   1475 {
   1476 	int error;
   1477 
   1478 	error = ahc_aic7870_setup(ahc);
   1479 	if (error == 0)
   1480 		error = ahc_aha394XX_setup(ahc);
   1481 	return (error);
   1482 }
   1483 
   1484 static int
   1485 ahc_aha398X_setup(struct ahc_softc *ahc)
   1486 {
   1487 	int error;
   1488 
   1489 	error = ahc_aic7870_setup(ahc);
   1490 	if (error == 0)
   1491 		error = ahc_aha398XX_setup(ahc);
   1492 	return (error);
   1493 }
   1494 
   1495 static int
   1496 ahc_aha494X_setup(struct ahc_softc *ahc)
   1497 {
   1498 	int error;
   1499 
   1500 	error = ahc_aic7870_setup(ahc);
   1501 	if (error == 0)
   1502 		error = ahc_aha494XX_setup(ahc);
   1503 	return (error);
   1504 }
   1505 
   1506 static int
   1507 ahc_aic7880_setup(struct ahc_softc *ahc)
   1508 {
   1509 	uint8_t rev;
   1510 
   1511 	ahc->channel = 'A';
   1512 	ahc->chip = AHC_AIC7880;
   1513 	ahc->features = AHC_AIC7880_FE;
   1514 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
   1515 	rev = PCI_REVISION(ahc->bd->class);
   1516 	if (rev >= 1) {
   1517 		ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
   1518 	} else {
   1519 		ahc->bugs |= AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
   1520 	}
   1521 	return (0);
   1522 }
   1523 
   1524 static int
   1525 ahc_aha2940Pro_setup(struct ahc_softc *ahc)
   1526 {
   1527 
   1528 	ahc->flags |= AHC_INT50_SPEEDFLEX;
   1529 	return (ahc_aic7880_setup(ahc));
   1530 }
   1531 
   1532 static int
   1533 ahc_aha394XU_setup(struct ahc_softc *ahc)
   1534 {
   1535 	int error;
   1536 
   1537 	error = ahc_aic7880_setup(ahc);
   1538 	if (error == 0)
   1539 		error = ahc_aha394XX_setup(ahc);
   1540 	return (error);
   1541 }
   1542 
   1543 static int
   1544 ahc_aha398XU_setup(struct ahc_softc *ahc)
   1545 {
   1546 	int error;
   1547 
   1548 	error = ahc_aic7880_setup(ahc);
   1549 	if (error == 0)
   1550 		error = ahc_aha398XX_setup(ahc);
   1551 	return (error);
   1552 }
   1553 
   1554 static int
   1555 ahc_aic7890_setup(struct ahc_softc *ahc)
   1556 {
   1557 	uint8_t rev;
   1558 
   1559 	ahc->channel = 'A';
   1560 	ahc->chip = AHC_AIC7890;
   1561 	ahc->features = AHC_AIC7890_FE;
   1562 	ahc->flags |= AHC_NEWEEPROM_FMT;
   1563 	rev = PCI_REVISION(ahc->bd->class);
   1564 	if (rev == 0)
   1565 		ahc->bugs |= AHC_AUTOFLUSH_BUG|AHC_CACHETHEN_BUG;
   1566 	return (0);
   1567 }
   1568 
   1569 static int
   1570 ahc_aic7892_setup(struct ahc_softc *ahc)
   1571 {
   1572 
   1573 	ahc->channel = 'A';
   1574 	ahc->chip = AHC_AIC7892;
   1575 	ahc->features = AHC_AIC7892_FE;
   1576 	ahc->flags |= AHC_NEWEEPROM_FMT;
   1577 	ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
   1578 	return (0);
   1579 }
   1580 
   1581 static int
   1582 ahc_aic7895_setup(struct ahc_softc *ahc)
   1583 {
   1584 	uint8_t rev;
   1585 
   1586 	ahc->channel = (ahc->bd->func == 1) ? 'B' : 'A';
   1587 	/*
   1588 	 * The 'C' revision of the aic7895 has a few additional features.
   1589 	 */
   1590 	rev = PCI_REVISION(ahc->bd->class);
   1591 	if (rev >= 4) {
   1592 		ahc->chip = AHC_AIC7895C;
   1593 		ahc->features = AHC_AIC7895C_FE;
   1594 	} else  {
   1595 		u_int command;
   1596 
   1597 		ahc->chip = AHC_AIC7895;
   1598 		ahc->features = AHC_AIC7895_FE;
   1599 
   1600 		/*
   1601 		 * The BIOS disables the use of MWI transactions
   1602 		 * since it does not have the MWI bug work around
   1603 		 * we have.  Disabling MWI reduces performance, so
   1604 		 * turn it on again.
   1605 		 */
   1606 		command = pci_conf_read(ahc->bd->pc, ahc->bd->tag, PCI_COMMAND_STATUS_REG);
   1607 		command |=  PCI_COMMAND_INVALIDATE_ENABLE;
   1608 		pci_conf_write(ahc->bd->pc, ahc->bd->tag, PCI_COMMAND_STATUS_REG, command);
   1609 		ahc->bugs |= AHC_PCI_MWI_BUG;
   1610 	}
   1611 	/*
   1612 	 * XXX Does CACHETHEN really not work???  What about PCI retry?
   1613 	 * on C level chips.  Need to test, but for now, play it safe.
   1614 	 */
   1615 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_PCI_2_1_RETRY_BUG
   1616 		  |  AHC_CACHETHEN_BUG;
   1617 
   1618 #if 0
   1619 	uint32_t devconfig;
   1620 
   1621 	/*
   1622 	 * Cachesize must also be zero due to stray DAC
   1623 	 * problem when sitting behind some bridges.
   1624 	 */
   1625 	pci_conf_write(ahc->bd->pc, ahc->bd->tag, CSIZE_LATTIME, 0);
   1626 	devconfig = pci_conf_read(ahc->bd->pc, ahc->bd->tag, DEVCONFIG);
   1627 	devconfig |= MRDCEN;
   1628 	pci_conf_write(ahc->bd->pc, ahc->bd->tag, DEVCONFIG, devconfig);
   1629 #endif
   1630 	ahc->flags |= AHC_NEWEEPROM_FMT;
   1631 	return (0);
   1632 }
   1633 
   1634 static int
   1635 ahc_aic7896_setup(struct ahc_softc *ahc)
   1636 {
   1637 	ahc->channel = (ahc->bd->func == 1) ? 'B' : 'A';
   1638 	ahc->chip = AHC_AIC7896;
   1639 	ahc->features = AHC_AIC7896_FE;
   1640 	ahc->flags |= AHC_NEWEEPROM_FMT;
   1641 	ahc->bugs |= AHC_CACHETHEN_DIS_BUG;
   1642 	return (0);
   1643 }
   1644 
   1645 static int
   1646 ahc_aic7899_setup(struct ahc_softc *ahc)
   1647 {
   1648 	ahc->channel = (ahc->bd->func == 1) ? 'B' : 'A';
   1649 	ahc->chip = AHC_AIC7899;
   1650 	ahc->features = AHC_AIC7899_FE;
   1651 	ahc->flags |= AHC_NEWEEPROM_FMT;
   1652 	ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
   1653 	return (0);
   1654 }
   1655 
   1656 static int
   1657 ahc_aha29160C_setup(struct ahc_softc *ahc)
   1658 {
   1659 	int error;
   1660 
   1661 	error = ahc_aic7899_setup(ahc);
   1662 	if (error != 0)
   1663 		return (error);
   1664 	ahc->features |= AHC_REMOVABLE;
   1665 	return (0);
   1666 }
   1667 
   1668 static int
   1669 ahc_raid_setup(struct ahc_softc *ahc)
   1670 {
   1671 	printf("RAID functionality unsupported\n");
   1672 	return (ENXIO);
   1673 }
   1674 
   1675 static int
   1676 ahc_aha394XX_setup(struct ahc_softc *ahc)
   1677 {
   1678 
   1679 	switch (ahc->bd->dev) {
   1680 	case AHC_394X_SLOT_CHANNEL_A:
   1681 		ahc->channel = 'A';
   1682 		break;
   1683 	case AHC_394X_SLOT_CHANNEL_B:
   1684 		ahc->channel = 'B';
   1685 		break;
   1686 	default:
   1687 		printf("adapter at unexpected slot %d\n"
   1688 		       "unable to map to a channel\n",
   1689 		       ahc->bd->dev);
   1690 		ahc->channel = 'A';
   1691 	}
   1692 	return (0);
   1693 }
   1694 
   1695 static int
   1696 ahc_aha398XX_setup(struct ahc_softc *ahc)
   1697 {
   1698 
   1699 	switch (ahc->bd->dev) {
   1700 	case AHC_398X_SLOT_CHANNEL_A:
   1701 		ahc->channel = 'A';
   1702 		break;
   1703 	case AHC_398X_SLOT_CHANNEL_B:
   1704 		ahc->channel = 'B';
   1705 		break;
   1706 	case AHC_398X_SLOT_CHANNEL_C:
   1707 		ahc->channel = 'C';
   1708 		break;
   1709 	default:
   1710 		printf("adapter at unexpected slot %d\n"
   1711 		       "unable to map to a channel\n",
   1712 		       ahc->bd->dev);
   1713 		ahc->channel = 'A';
   1714 		break;
   1715 	}
   1716 	ahc->flags |= AHC_LARGE_SEEPROM;
   1717 	return (0);
   1718 }
   1719 
   1720 static int
   1721 ahc_aha494XX_setup(struct ahc_softc *ahc)
   1722 {
   1723 
   1724 	switch (ahc->bd->dev) {
   1725 	case AHC_494X_SLOT_CHANNEL_A:
   1726 		ahc->channel = 'A';
   1727 		break;
   1728 	case AHC_494X_SLOT_CHANNEL_B:
   1729 		ahc->channel = 'B';
   1730 		break;
   1731 	case AHC_494X_SLOT_CHANNEL_C:
   1732 		ahc->channel = 'C';
   1733 		break;
   1734 	case AHC_494X_SLOT_CHANNEL_D:
   1735 		ahc->channel = 'D';
   1736 		break;
   1737 	default:
   1738 		printf("adapter at unexpected slot %d\n"
   1739 		       "unable to map to a channel\n",
   1740 		       ahc->bd->dev);
   1741 		ahc->channel = 'A';
   1742 	}
   1743 	ahc->flags |= AHC_LARGE_SEEPROM;
   1744 	return (0);
   1745 }
   1746