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ahc_pci.c revision 1.38
      1 /*	$NetBSD: ahc_pci.c,v 1.38 2003/01/31 00:07:40 thorpej Exp $	*/
      2 
      3 /*
      4  * Product specific probe and attach routines for:
      5  *      3940, 2940, aic7895, aic7890, aic7880,
      6  *	aic7870, aic7860 and aic7850 SCSI controllers
      7  *
      8  * Copyright (c) 1994, 1995, 1996, 1997, 1998, 1999, 2000 Justin T. Gibbs.
      9  * All rights reserved.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions, and the following disclaimer,
     16  *    without modification.
     17  * 2. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * Alternatively, this software may be distributed under the terms of the
     21  * the GNU Public License ("GPL").
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
     27  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  * $FreeBSD: src/sys/dev/aic7xxx/ahc_pci.c,v 1.28 2000/02/09 21:00:22 gibbs Exp $
     36  */
     37 
     38 #include <sys/cdefs.h>
     39 __KERNEL_RCSID(0, "$NetBSD: ahc_pci.c,v 1.38 2003/01/31 00:07:40 thorpej Exp $");
     40 
     41 #include <sys/param.h>
     42 #include <sys/systm.h>
     43 #include <sys/malloc.h>
     44 #include <sys/kernel.h>
     45 #include <sys/queue.h>
     46 #include <sys/device.h>
     47 #include <sys/reboot.h>
     48 
     49 #include <machine/bus.h>
     50 #include <machine/intr.h>
     51 
     52 #include <dev/pci/pcireg.h>
     53 #include <dev/pci/pcivar.h>
     54 
     55 /* XXXX some i386 on-board chips act weird when memory-mapped */
     56 #ifndef __i386__
     57 #define AHC_ALLOW_MEMIO
     58 #endif
     59 
     60 #define AHC_PCI_IOADDR	PCI_MAPREG_START	/* I/O Address */
     61 #define AHC_PCI_MEMADDR	(PCI_MAPREG_START + 4)	/* Mem I/O Address */
     62 
     63 #include <dev/scsipi/scsi_all.h>
     64 #include <dev/scsipi/scsipi_all.h>
     65 #include <dev/scsipi/scsiconf.h>
     66 
     67 #include <dev/ic/aic7xxxvar.h>
     68 #include <dev/ic/smc93cx6var.h>
     69 
     70 #include <dev/microcode/aic7xxx/aic7xxx_reg.h>
     71 
     72 struct ahc_pci_busdata {
     73 	pci_chipset_tag_t pc;
     74 	pcitag_t tag;
     75 	u_int dev;
     76 	u_int func;
     77 };
     78 
     79 static __inline u_int64_t
     80 ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
     81 {
     82 	u_int64_t id;
     83 
     84 	id = subvendor
     85 	   | (subdevice << 16)
     86 	   | ((u_int64_t)vendor << 32)
     87 	   | ((u_int64_t)device << 48);
     88 
     89 	return (id);
     90 }
     91 
     92 #define ID_ALL_MASK		0xFFFFFFFFFFFFFFFFull
     93 #define ID_DEV_VENDOR_MASK	0xFFFFFFFF00000000ull
     94 #define ID_AIC7850		0x5078900400000000ull
     95 #define ID_AHA_2910_15_20_30C	0x5078900478509004ull
     96 #define ID_AIC7855		0x5578900400000000ull
     97 #define ID_AIC7859		0x3860900400000000ull
     98 #define ID_AHA_2930CU		0x3860900438699004ull
     99 #define ID_AIC7860		0x6078900400000000ull
    100 #define ID_AIC7860C		0x6078900478609004ull
    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 
    113 #define ID_AIC7880		0x8078900400000000ull
    114 #define ID_AIC7880_B		0x8078900478809004ull
    115 #define ID_AHA_2940U		0x8178900400000000ull
    116 #define ID_AHA_3940U		0x8278900400000000ull
    117 #define ID_AHA_2944U		0x8478900400000000ull
    118 #define ID_AHA_3944U		0x8578900400000000ull
    119 #define ID_AHA_398XU		0x8378900400000000ull
    120 #define ID_AHA_4944U		0x8678900400000000ull
    121 #define ID_AHA_2940UB		0x8178900478819004ull
    122 #define ID_AHA_2930U		0x8878900478889004ull
    123 #define ID_AHA_2940U_PRO	0x8778900478879004ull
    124 #define ID_AHA_2940U_CN		0x0078900478009004ull
    125 
    126 #define ID_AIC7895		0x7895900478959004ull
    127 #define ID_AIC7895_RAID_PORT	0x7893900478939004ull
    128 #define ID_AHA_2940U_DUAL	0x7895900478919004ull
    129 #define ID_AHA_3940AU		0x7895900478929004ull
    130 #define ID_AHA_3944AU		0x7895900478949004ull
    131 
    132 #define ID_AIC7890		0x001F9005000F9005ull
    133 #define ID_AAA_131U2		0x0013900500039005ull
    134 #define ID_AHA_2930U2		0x0011900501819005ull
    135 #define ID_AHA_2940U2B		0x00109005A1009005ull
    136 #define ID_AHA_2940U2_OEM	0x0010900521809005ull
    137 #define ID_AHA_2940U2		0x00109005A1809005ull
    138 #define ID_AHA_2950U2B		0x00109005E1009005ull
    139 
    140 #define ID_AIC7892		0x008F9005FFFF9005ull
    141 #define ID_AHA_29160		0x00809005E2A09005ull
    142 #define ID_AHA_29160_CPQ	0x00809005E2A00E11ull
    143 #define ID_AHA_29160N		0x0080900562A09005ull
    144 #define ID_AHA_29160B		0x00809005E2209005ull
    145 #define ID_AHA_19160B		0x0081900562A19005ull
    146 
    147 #define ID_AIC7896		0x005F9005FFFF9005ull
    148 #define ID_AHA_3950U2B_0	0x00509005FFFF9005ull
    149 #define ID_AHA_3950U2B_1	0x00509005F5009005ull
    150 #define ID_AHA_3950U2D_0	0x00519005FFFF9005ull
    151 #define ID_AHA_3950U2D_1	0x00519005B5009005ull
    152 
    153 #define ID_AIC7899		0x00CF9005FFFF9005ull
    154 #define ID_AHA_3960D		0x00C09005F6209005ull /* AKA AHA-39160 */
    155 #define ID_AHA_3960D_CPQ	0x00C09005F6200E11ull
    156 
    157 #define ID_AIC7810		0x1078900400000000ull
    158 #define ID_AIC7815		0x7815900400000000ull
    159 
    160 typedef int (ahc_device_setup_t)(struct pci_attach_args *, char *,
    161 				 ahc_chip *, ahc_feature *, ahc_flag *);
    162 
    163 static ahc_device_setup_t ahc_aic7850_setup;
    164 static ahc_device_setup_t ahc_aic7855_setup;
    165 static ahc_device_setup_t ahc_aic7859_setup;
    166 static ahc_device_setup_t ahc_aic7860_setup;
    167 static ahc_device_setup_t ahc_aic7870_setup;
    168 static ahc_device_setup_t ahc_aha394X_setup;
    169 static ahc_device_setup_t ahc_aha398X_setup;
    170 static ahc_device_setup_t ahc_aic7880_setup;
    171 static ahc_device_setup_t ahc_2940Pro_setup;
    172 static ahc_device_setup_t ahc_aha394XU_setup;
    173 static ahc_device_setup_t ahc_aha398XU_setup;
    174 static ahc_device_setup_t ahc_aic7890_setup;
    175 static ahc_device_setup_t ahc_aic7892_setup;
    176 static ahc_device_setup_t ahc_aic7895_setup;
    177 static ahc_device_setup_t ahc_aic7896_setup;
    178 static ahc_device_setup_t ahc_aic7899_setup;
    179 static ahc_device_setup_t ahc_raid_setup;
    180 static ahc_device_setup_t ahc_aha394XX_setup;
    181 static ahc_device_setup_t ahc_aha398XX_setup;
    182 
    183 struct ahc_pci_identity {
    184 	u_int64_t		 full_id;
    185 	u_int64_t		 id_mask;
    186 	const char		*name;
    187 	ahc_device_setup_t	*setup;
    188 };
    189 
    190 const struct ahc_pci_identity ahc_pci_ident_table [] =
    191 {
    192 	/* aic7850 based controllers */
    193 	{
    194 		ID_AHA_2910_15_20_30C,
    195 		ID_ALL_MASK,
    196 		"Adaptec 2910/15/20/30C SCSI adapter",
    197 		ahc_aic7850_setup
    198 	},
    199 	/* aic7859 based controllers */
    200 	{
    201 		ID_AHA_2930CU,
    202 		ID_ALL_MASK,
    203 		"Adaptec 2930CU SCSI adapter",
    204 		ahc_aic7859_setup
    205 	},
    206 	/* aic7860 based controllers */
    207 	{
    208 		ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
    209 		ID_DEV_VENDOR_MASK,
    210 		"Adaptec 2940A Ultra SCSI adapter",
    211 		ahc_aic7860_setup
    212 	},
    213 	{
    214 		ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
    215 		ID_DEV_VENDOR_MASK,
    216 		"Adaptec 2940A/CN Ultra SCSI adapter",
    217 		ahc_aic7860_setup
    218 	},
    219 	{
    220 		ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
    221 		ID_DEV_VENDOR_MASK,
    222 		"Adaptec 2930C SCSI adapter (VAR)",
    223 		ahc_aic7860_setup
    224 	},
    225 	/* aic7870 based controllers */
    226 	{
    227 		ID_AHA_2940,
    228 		ID_ALL_MASK,
    229 		"Adaptec 2940 SCSI adapter",
    230 		ahc_aic7870_setup
    231 	},
    232 	{
    233 		ID_AHA_3940,
    234 		ID_ALL_MASK,
    235 		"Adaptec 3940 SCSI adapter",
    236 		ahc_aha394X_setup
    237 	},
    238 	{
    239 		ID_AHA_398X,
    240 		ID_ALL_MASK,
    241 		"Adaptec 398X SCSI RAID adapter",
    242 		ahc_aha398X_setup
    243 	},
    244 	{
    245 		ID_AHA_2944,
    246 		ID_ALL_MASK,
    247 		"Adaptec 2944 SCSI adapter",
    248 		ahc_aic7870_setup
    249 	},
    250 	{
    251 		ID_AHA_3944,
    252 		ID_ALL_MASK,
    253 		"Adaptec 3944 SCSI adapter",
    254 		ahc_aha394X_setup
    255 	},
    256 	/* aic7880 based controllers */
    257 	{
    258 		ID_AHA_2940U & ID_DEV_VENDOR_MASK,
    259 		ID_DEV_VENDOR_MASK,
    260 		"Adaptec 2940 Ultra SCSI adapter",
    261 		ahc_aic7880_setup
    262 	},
    263 	{
    264 		ID_AHA_3940U & ID_DEV_VENDOR_MASK,
    265 		ID_DEV_VENDOR_MASK,
    266 		"Adaptec 3940 Ultra SCSI adapter",
    267 		ahc_aha394XU_setup
    268 	},
    269 	{
    270 		ID_AHA_2944U & ID_DEV_VENDOR_MASK,
    271 		ID_DEV_VENDOR_MASK,
    272 		"Adaptec 2944 Ultra SCSI adapter",
    273 		ahc_aic7880_setup
    274 	},
    275 	{
    276 		ID_AHA_3944U & ID_DEV_VENDOR_MASK,
    277 		ID_DEV_VENDOR_MASK,
    278 		"Adaptec 3944 Ultra SCSI adapter",
    279 		ahc_aha394XU_setup
    280 	},
    281 	{
    282 		ID_AHA_398XU & ID_DEV_VENDOR_MASK,
    283 		ID_DEV_VENDOR_MASK,
    284 		"Adaptec 398X Ultra SCSI RAID adapter",
    285 		ahc_aha398XU_setup
    286 	},
    287 	{
    288 		/*
    289 		 * XXX Don't know the slot numbers
    290 		 * so we can't identify channels
    291 		 */
    292 		ID_AHA_4944U & ID_DEV_VENDOR_MASK,
    293 		ID_DEV_VENDOR_MASK,
    294 		"Adaptec 4944 Ultra SCSI adapter",
    295 		ahc_aic7880_setup
    296 	},
    297 	{
    298 		ID_AHA_2930U & ID_DEV_VENDOR_MASK,
    299 		ID_DEV_VENDOR_MASK,
    300 		"Adaptec 2930 Ultra SCSI adapter",
    301 		ahc_aic7880_setup
    302 	},
    303 	{
    304 		ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
    305 		ID_DEV_VENDOR_MASK,
    306 		"Adaptec 2940 Pro Ultra SCSI adapter",
    307 		ahc_2940Pro_setup
    308 	},
    309 	{
    310 		ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
    311 		ID_DEV_VENDOR_MASK,
    312 		"Adaptec 2940/CN Ultra SCSI adapter",
    313 		ahc_aic7880_setup
    314 	},
    315 	/* aic7890 based controllers */
    316 	{
    317 		ID_AHA_2930U2,
    318 		ID_ALL_MASK,
    319 		"Adaptec 2930 Ultra2 SCSI adapter",
    320 		ahc_aic7890_setup
    321 	},
    322 	{
    323 		ID_AHA_2940U2B,
    324 		ID_ALL_MASK,
    325 		"Adaptec 2940B Ultra2 SCSI adapter",
    326 		ahc_aic7890_setup
    327 	},
    328 	{
    329 		ID_AHA_2940U2_OEM,
    330 		ID_ALL_MASK,
    331 		"Adaptec 2940 Ultra2 SCSI adapter (OEM)",
    332 		ahc_aic7890_setup
    333 	},
    334 	{
    335 		ID_AHA_2940U2,
    336 		ID_ALL_MASK,
    337 		"Adaptec 2940 Ultra2 SCSI adapter",
    338 		ahc_aic7890_setup
    339 	},
    340 	{
    341 		ID_AHA_2950U2B,
    342 		ID_ALL_MASK,
    343 		"Adaptec 2950 Ultra2 SCSI adapter",
    344 		ahc_aic7890_setup
    345 	},
    346 	{
    347 		ID_AAA_131U2,
    348 		ID_ALL_MASK,
    349 		"Adaptec AAA-131 Ultra2 RAID adapter",
    350 		ahc_aic7890_setup
    351 	},
    352 	/* aic7892 based controllers */
    353 	{
    354 		ID_AHA_29160,
    355 		ID_ALL_MASK,
    356 		"Adaptec 29160 Ultra160 SCSI adapter",
    357 		ahc_aic7892_setup
    358 	},
    359 	{
    360 		ID_AHA_29160_CPQ,
    361 		ID_ALL_MASK,
    362 		"Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
    363 		ahc_aic7892_setup
    364 	},
    365 	{
    366 		ID_AHA_29160N,
    367 		ID_ALL_MASK,
    368 		"Adaptec 29160N Ultra160 SCSI adapter",
    369 		ahc_aic7892_setup
    370 	},
    371 	{
    372 		ID_AHA_29160B,
    373 		ID_ALL_MASK,
    374 		"Adaptec 29160B Ultra160 SCSI adapter",
    375 		ahc_aic7892_setup
    376 	},
    377 	{
    378 		ID_AHA_19160B,
    379 		ID_ALL_MASK,
    380 		"Adaptec 19160B Ultra160 SCSI adapter",
    381 		ahc_aic7892_setup
    382 	},
    383 	/* aic7895 based controllers */
    384 	{
    385 		ID_AHA_2940U_DUAL,
    386 		ID_ALL_MASK,
    387 		"Adaptec 2940/DUAL Ultra SCSI adapter",
    388 		ahc_aic7895_setup
    389 	},
    390 	{
    391 		ID_AHA_3940AU,
    392 		ID_ALL_MASK,
    393 		"Adaptec 3940A Ultra SCSI adapter",
    394 		ahc_aic7895_setup
    395 	},
    396 	{
    397 		ID_AHA_3944AU,
    398 		ID_ALL_MASK,
    399 		"Adaptec 3944A Ultra SCSI adapter",
    400 		ahc_aic7895_setup
    401 	},
    402 	/* aic7896/97 based controllers */
    403 	{
    404 		ID_AHA_3950U2B_0,
    405 		ID_ALL_MASK,
    406 		"Adaptec 3950B Ultra2 SCSI adapter",
    407 		ahc_aic7896_setup
    408 	},
    409 	{
    410 		ID_AHA_3950U2B_1,
    411 		ID_ALL_MASK,
    412 		"Adaptec 3950B Ultra2 SCSI adapter",
    413 		ahc_aic7896_setup
    414 	},
    415 	{
    416 		ID_AHA_3950U2D_0,
    417 		ID_ALL_MASK,
    418 		"Adaptec 3950D Ultra2 SCSI adapter",
    419 		ahc_aic7896_setup
    420 	},
    421 	{
    422 		ID_AHA_3950U2D_1,
    423 		ID_ALL_MASK,
    424 		"Adaptec 3950D Ultra2 SCSI adapter",
    425 		ahc_aic7896_setup
    426 	},
    427 	/* aic7899 based controllers */
    428 	{
    429 		ID_AHA_3960D,
    430 		ID_ALL_MASK,
    431 		"Adaptec 3960D Ultra160 SCSI adapter",
    432 		ahc_aic7899_setup
    433 	},
    434 	{
    435 		ID_AHA_3960D_CPQ,
    436 		ID_ALL_MASK,
    437 		"Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
    438 		ahc_aic7899_setup
    439 	},
    440 	/* Generic chip probes for devices we don't know 'exactly' */
    441 	{
    442 		ID_AIC7850 & ID_DEV_VENDOR_MASK,
    443 		ID_DEV_VENDOR_MASK,
    444 		"Adaptec aic7850 SCSI adapter",
    445 		ahc_aic7850_setup
    446 	},
    447 	{
    448 		ID_AIC7855 & ID_DEV_VENDOR_MASK,
    449 		ID_DEV_VENDOR_MASK,
    450 		"Adaptec aic7855 SCSI adapter",
    451 		ahc_aic7855_setup
    452 	},
    453 	{
    454 		ID_AIC7859 & ID_DEV_VENDOR_MASK,
    455 		ID_DEV_VENDOR_MASK,
    456 		"Adaptec aic7859 SCSI adapter",
    457 		ahc_aic7859_setup
    458 	},
    459 	{
    460 		ID_AIC7860 & ID_DEV_VENDOR_MASK,
    461 		ID_DEV_VENDOR_MASK,
    462 		"Adaptec aic7860 SCSI adapter",
    463 		ahc_aic7860_setup
    464 	},
    465 	{
    466 		ID_AIC7870 & ID_DEV_VENDOR_MASK,
    467 		ID_DEV_VENDOR_MASK,
    468 		"Adaptec aic7870 SCSI adapter",
    469 		ahc_aic7870_setup
    470 	},
    471 	{
    472 		ID_AIC7880 & ID_DEV_VENDOR_MASK,
    473 		ID_DEV_VENDOR_MASK,
    474 		"Adaptec aic7880 Ultra SCSI adapter",
    475 		ahc_aic7880_setup
    476 	},
    477 	{
    478 		ID_AIC7890 & ID_DEV_VENDOR_MASK,
    479 		ID_DEV_VENDOR_MASK,
    480 		"Adaptec aic7890/91 Ultra2 SCSI adapter",
    481 		ahc_aic7890_setup
    482 	},
    483 	{
    484 		ID_AIC7892 & ID_DEV_VENDOR_MASK,
    485 		ID_DEV_VENDOR_MASK,
    486 		"Adaptec aic7892 Ultra160 SCSI adapter",
    487 		ahc_aic7892_setup
    488 	},
    489 	{
    490 		ID_AIC7895 & ID_DEV_VENDOR_MASK,
    491 		ID_DEV_VENDOR_MASK,
    492 		"Adaptec aic7895 Ultra SCSI adapter",
    493 		ahc_aic7895_setup
    494 	},
    495 	{
    496 		ID_AIC7895_RAID_PORT & ID_DEV_VENDOR_MASK,
    497 		ID_DEV_VENDOR_MASK,
    498 		"Adaptec aic7895 Ultra SCSI adapter (RAID PORT)",
    499 		ahc_aic7895_setup
    500 	},
    501 	{
    502 		ID_AIC7896 & ID_DEV_VENDOR_MASK,
    503 		ID_DEV_VENDOR_MASK,
    504 		"Adaptec aic7896/97 Ultra2 SCSI adapter",
    505 		ahc_aic7896_setup
    506 	},
    507 	{
    508 		ID_AIC7899 & ID_DEV_VENDOR_MASK,
    509 		ID_DEV_VENDOR_MASK,
    510 		"Adaptec aic7899 Ultra160 SCSI adapter",
    511 		ahc_aic7899_setup
    512 	},
    513 	{
    514 		ID_AIC7810 & ID_DEV_VENDOR_MASK,
    515 		ID_DEV_VENDOR_MASK,
    516 		"Adaptec aic7810 RAID memory controller",
    517 		ahc_raid_setup
    518 	},
    519 	{
    520 		ID_AIC7815 & ID_DEV_VENDOR_MASK,
    521 		ID_DEV_VENDOR_MASK,
    522 		"Adaptec aic7815 RAID memory controller",
    523 		ahc_raid_setup
    524 	}
    525 };
    526 
    527 static const int ahc_num_pci_devs =
    528 	sizeof(ahc_pci_ident_table) / sizeof(*ahc_pci_ident_table);
    529 
    530 #define AHC_394X_SLOT_CHANNEL_A	4
    531 #define AHC_394X_SLOT_CHANNEL_B	5
    532 
    533 #define AHC_398X_SLOT_CHANNEL_A	4
    534 #define AHC_398X_SLOT_CHANNEL_B	8
    535 #define AHC_398X_SLOT_CHANNEL_C	12
    536 
    537 #define	DEVCONFIG		0x40
    538 #define		SCBSIZE32	0x00010000	/* aic789X only */
    539 #define		MPORTMODE	0x00000400	/* aic7870 only */
    540 #define		RAMPSM		0x00000200	/* aic7870 only */
    541 #define		VOLSENSE	0x00000100
    542 #define		SCBRAMSEL	0x00000080
    543 #define		MRDCEN		0x00000040
    544 #define		EXTSCBTIME	0x00000020	/* aic7870 only */
    545 #define		EXTSCBPEN	0x00000010	/* aic7870 only */
    546 #define		BERREN		0x00000008
    547 #define		DACEN		0x00000004
    548 #define		STPWLEVEL	0x00000002
    549 #define		DIFACTNEGEN	0x00000001	/* aic7870 only */
    550 
    551 #define	CSIZE_LATTIME		0x0c
    552 #define		CACHESIZE	0x0000003f	/* only 5 bits */
    553 #define		LATTIME		0x0000ff00
    554 
    555 static const struct ahc_pci_identity *ahc_find_pci_device(pcireg_t, pcireg_t);
    556 static int ahc_ext_scbram_present(struct ahc_softc *ahc);
    557 static void ahc_ext_scbram_config(struct ahc_softc *ahc, int enable,
    558 				  int pcheck, int fast);
    559 static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
    560 
    561 int ahc_pci_probe __P((struct device *, struct cfdata *, void *));
    562 void ahc_pci_attach __P((struct device *, struct device *, void *));
    563 
    564 /* Exported for use in the ahc_intr routine */
    565 int ahc_pci_intr(struct ahc_softc *ahc);
    566 
    567 CFATTACH_DECL(ahc_pci, sizeof(struct ahc_softc),
    568     ahc_pci_probe, ahc_pci_attach, NULL, NULL);
    569 
    570 static const struct ahc_pci_identity *
    571 ahc_find_pci_device(id, subid)
    572 	pcireg_t id, subid;
    573 {
    574 	u_int64_t  full_id;
    575 	const struct	   ahc_pci_identity *entry;
    576 	u_int	   i;
    577 
    578 	full_id = ahc_compose_id(PCI_PRODUCT(id), PCI_VENDOR(id),
    579 				 PCI_PRODUCT(subid), PCI_VENDOR(subid));
    580 
    581 	for (i = 0; i < ahc_num_pci_devs; i++) {
    582 		entry = &ahc_pci_ident_table[i];
    583 		if (entry->full_id == (full_id & entry->id_mask))
    584 			return (entry);
    585 	}
    586 	return (NULL);
    587 }
    588 
    589 int
    590 ahc_pci_probe(parent, match, aux)
    591 	struct device *parent;
    592 	struct cfdata *match;
    593 	void *aux;
    594 {
    595 	struct pci_attach_args *pa = aux;
    596 	const struct	   ahc_pci_identity *entry;
    597 	pcireg_t   subid;
    598 
    599 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
    600 	entry = ahc_find_pci_device(pa->pa_id, subid);
    601 	return entry != NULL ? 1 : 0;
    602 }
    603 
    604 void
    605 ahc_pci_attach(parent, self, aux)
    606 	struct device *parent, *self;
    607 	void *aux;
    608 {
    609 	struct pci_attach_args *pa = aux;
    610 	const struct	   ahc_pci_identity *entry;
    611 	struct		   ahc_softc *ahc = (void *)self;
    612 	pcireg_t	   command;
    613 	ahc_chip	   ahc_t = AHC_NONE;
    614 	ahc_feature	   ahc_fe = AHC_FENONE;
    615 	ahc_flag	   ahc_f = AHC_FNONE;
    616 	u_int		   our_id = 0;
    617 	u_int		   sxfrctl1;
    618 	u_int		   scsiseq;
    619 	int		   error;
    620 	char		   channel;
    621 	pcireg_t	   subid;
    622 	int		   ioh_valid, memh_valid;
    623 	bus_space_tag_t st, iot;
    624 	bus_space_handle_t sh, ioh;
    625 #ifdef AHC_ALLOW_MEMIO
    626 	bus_space_tag_t memt;
    627 	bus_space_handle_t memh;
    628 	pcireg_t memtype;
    629 #endif
    630 	pci_intr_handle_t ih;
    631 	const char *intrstr;
    632 	struct ahc_pci_busdata *bd;
    633 
    634 	aprint_naive(": SCSI controller\n");
    635 
    636 	command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    637 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
    638 	entry = ahc_find_pci_device(pa->pa_id, subid);
    639 	if (entry == NULL)
    640 		return;
    641 	error = entry->setup(pa, &channel, &ahc_t, &ahc_fe, &ahc_f);
    642 	if (error != 0)
    643 		return;
    644 
    645 	ioh_valid = memh_valid = 0;
    646 
    647 #ifdef AHC_ALLOW_MEMIO
    648 	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, AHC_PCI_MEMADDR);
    649 	switch (memtype) {
    650 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
    651 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
    652 		memh_valid = (pci_mapreg_map(pa, AHC_PCI_MEMADDR,
    653 		    memtype, 0, &memt, &memh, NULL, NULL) == 0);
    654 		break;
    655 	default:
    656 		memh_valid = 0;
    657 	}
    658 #endif
    659 	ioh_valid = (pci_mapreg_map(pa, AHC_PCI_IOADDR,
    660 	    PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, NULL) == 0);
    661 
    662 	if (ioh_valid) {
    663 		st = iot;
    664 		sh = ioh;
    665 #ifdef AHC_ALLOW_MEMIO
    666 	} else if (memh_valid) {
    667 		st = memt;
    668 		sh = memh;
    669 #endif
    670 	} else {
    671 		aprint_error(": unable to map registers\n");
    672 		return;
    673 	}
    674 
    675 	aprint_normal("\n");
    676 
    677 
    678 	/* Ensure busmastering is enabled */
    679 	command |= PCI_COMMAND_MASTER_ENABLE;
    680 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    681 
    682 	/* On all PCI adapters, we allow SCB paging */
    683 	ahc_f |= AHC_PAGESCBS;
    684 	if (ahc_alloc(ahc, sh, st, pa->pa_dmat,
    685 	    ahc_t|AHC_PCI, ahc_fe, ahc_f) < 0)
    686 		return;
    687 
    688 	bd = malloc(sizeof (struct ahc_pci_busdata), M_DEVBUF, M_NOWAIT);
    689 	if (bd == NULL) {
    690 		aprint_normal(": unable to allocate bus-specific data\n");
    691 		return;
    692 	}
    693 
    694 	bd->pc = pa->pa_pc;
    695 	bd->tag = pa->pa_tag;
    696 	bd->func = pa->pa_function;
    697 	bd->dev = pa->pa_device;
    698 
    699 	ahc->bus_data = bd;
    700 	ahc->bus_intr = ahc_pci_intr;
    701 	ahc->channel = channel;
    702 
    703 	/* Remeber how the card was setup in case there is no SEEPROM */
    704 	ahc_outb(ahc, HCNTRL, ahc->pause);
    705 	if ((ahc->features & AHC_ULTRA2) != 0)
    706 		our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
    707 	else
    708 		our_id = ahc_inb(ahc, SCSIID) & OID;
    709 	sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
    710 	scsiseq = ahc_inb(ahc, SCSISEQ);
    711 
    712 	if (ahc_reset(ahc) != 0) {
    713 		/* Failed */
    714 		ahc_free(ahc);
    715 		return;
    716 	}
    717 
    718 	if ((ahc->features & AHC_DT) != 0) {
    719 		u_int optionmode;
    720 		u_int sfunct;
    721 
    722 		/* Perform ALT-Mode Setup */
    723 		sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
    724 		ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
    725 		optionmode = ahc_inb(ahc, OPTIONMODE);
    726 #ifdef DEBUG
    727 		aprint_debug("%s: OptionMode = %x\n", ahc->sc_dev.dv_xname,
    728 		    optionmode);
    729 #endif
    730 		ahc_outb(ahc, OPTIONMODE, OPTIONMODE_DEFAULTS);
    731 		/* Send CRC info in target mode every 4K */
    732 		ahc_outb(ahc, TARGCRCCNT, 0);
    733 		ahc_outb(ahc, TARGCRCCNT + 1, 0x10);
    734 		ahc_outb(ahc, SFUNCT, sfunct);
    735 
    736 		/* Normal mode setup */
    737 		ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
    738 					  |TARGCRCENDEN|TARGCRCCNTEN);
    739 	}
    740 
    741 	if (pci_intr_map(pa, &ih)) {
    742 		aprint_error("%s: couldn't map interrupt\n",
    743 		    ahc->sc_dev.dv_xname);
    744 		ahc_free(ahc);
    745 		return;
    746 	}
    747 	intrstr = pci_intr_string(pa->pa_pc, ih);
    748 	ahc->ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, ahc_intr, ahc);
    749 	if (ahc->ih == NULL) {
    750 		aprint_error("%s: couldn't establish interrupt",
    751 		       ahc->sc_dev.dv_xname);
    752 		if (intrstr != NULL)
    753 			aprint_normal(" at %s", intrstr);
    754 		aprint_normal("\n");
    755 		ahc_free(ahc);
    756 		return;
    757 	}
    758 	if (intrstr != NULL)
    759 		aprint_normal("%s: interrupting at %s\n", ahc->sc_dev.dv_xname,
    760 		       intrstr);
    761 
    762 	/*
    763 	 * Do aic7880/aic7870/aic7860/aic7850 specific initialization
    764 	 */
    765 	{
    766 		u_int8_t sblkctl;
    767 		u_int dscommand0;
    768 
    769 		dscommand0 = ahc_inb(ahc, DSCOMMAND0);
    770 		dscommand0 |= MPARCKEN;
    771 		if ((ahc->features & AHC_ULTRA2) != 0) {
    772 
    773 			/*
    774 			 * DPARCKEN doesn't work correctly on
    775 			 * some MBs so don't use it.
    776 			 */
    777 			dscommand0 &= ~(USCBSIZE32|DPARCKEN);
    778 			dscommand0 |= CACHETHEN;
    779 		}
    780 
    781 		ahc_outb(ahc, DSCOMMAND0, dscommand0);
    782 
    783 		/* See if we have an SEEPROM and perform auto-term */
    784 		check_extport(ahc, &sxfrctl1);
    785 
    786 		/*
    787 		 * Take the LED out of diagnostic mode
    788 		 */
    789 		sblkctl = ahc_inb(ahc, SBLKCTL);
    790 		ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
    791 
    792 		/*
    793 		 * I don't know where this is set in the SEEPROM or by the
    794 		 * BIOS, so we default to 100% on Ultra or slower controllers
    795 		 * and 75% on ULTRA2 controllers.
    796 		 */
    797 		if ((ahc->features & AHC_ULTRA2) != 0) {
    798 			ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_75|WR_DFTHRSH_75);
    799 		} else {
    800 			ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
    801 		}
    802 
    803 		if (ahc->flags & AHC_USEDEFAULTS) {
    804 			/*
    805 			 * PCI Adapter default setup
    806 			 * Should only be used if the adapter does not have
    807 			 * an SEEPROM.
    808 			 */
    809 			/* See if someone else set us up already */
    810 			if (scsiseq != 0) {
    811 				aprint_normal(
    812 				    "%s: Using left over BIOS settings\n",
    813 				    ahc_name(ahc));
    814 				ahc->flags &= ~AHC_USEDEFAULTS;
    815 			} else {
    816 				/*
    817 				 * Assume only one connector and always turn
    818 				 * on termination.
    819 				 */
    820  				our_id = 0x07;
    821 				sxfrctl1 = STPWEN;
    822 			}
    823 			ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
    824 
    825 			ahc->our_id = our_id;
    826 		}
    827 	}
    828 
    829 	/*
    830 	 * Take a look to see if we have external SRAM.
    831 	 * We currently do not attempt to use SRAM that is
    832 	 * shared among multiple controllers.
    833 	 */
    834 	ahc_probe_ext_scbram(ahc);
    835 
    836 
    837 	aprint_normal("%s: %s ", ahc_name(ahc),
    838 	       ahc_chip_names[ahc->chip & AHC_CHIPID_MASK]);
    839 
    840 	/*
    841 	 * Record our termination setting for the
    842 	 * generic initialization routine.
    843 	 */
    844 	if ((sxfrctl1 & STPWEN) != 0)
    845 		ahc->flags |= AHC_TERM_ENB_A;
    846 
    847 	if (ahc_init(ahc)) {
    848 		ahc_free(ahc);
    849 		return;
    850 	}
    851 
    852 	ahc_attach(ahc);
    853 }
    854 
    855 /*
    856  * Test for the presence of external sram in an
    857  * "unshared" configuration.
    858  */
    859 static int
    860 ahc_ext_scbram_present(struct ahc_softc *ahc)
    861 {
    862 	int ramps;
    863 	int single_user;
    864 	pcireg_t devconfig;
    865 	struct ahc_pci_busdata *bd = ahc->bus_data;
    866 
    867 	devconfig = pci_conf_read(bd->pc, bd->tag, DEVCONFIG);
    868 	single_user = (devconfig & MPORTMODE) != 0;
    869 
    870 	if ((ahc->features & AHC_ULTRA2) != 0)
    871 		ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
    872 	else if ((ahc->chip & AHC_CHIPID_MASK) >= AHC_AIC7870)
    873 		ramps = (devconfig & RAMPSM) != 0;
    874 	else
    875 		ramps = 0;
    876 
    877 	if (ramps && single_user)
    878 		return (1);
    879 	return (0);
    880 }
    881 
    882 /*
    883  * Enable external scbram.
    884  */
    885 static void
    886 ahc_ext_scbram_config(struct ahc_softc *ahc, int enable, int pcheck, int fast)
    887 {
    888 	pcireg_t devconfig;
    889 	struct ahc_pci_busdata *bd = ahc->bus_data;
    890 
    891 	if (ahc->features & AHC_MULTI_FUNC) {
    892 		/*
    893 		 * Set the SCB Base addr (highest address bit)
    894 		 * depending on which channel we are.
    895 		 */
    896 		ahc_outb(ahc, SCBBADDR, (u_int8_t)bd->func);
    897 	}
    898 
    899 	devconfig = pci_conf_read(bd->pc, bd->tag, DEVCONFIG);
    900 	if ((ahc->features & AHC_ULTRA2) != 0) {
    901 		u_int dscommand0;
    902 
    903 		dscommand0 = ahc_inb(ahc, DSCOMMAND0);
    904 		if (enable)
    905 			dscommand0 &= ~INTSCBRAMSEL;
    906 		else
    907 			dscommand0 |= INTSCBRAMSEL;
    908 		ahc_outb(ahc, DSCOMMAND0, dscommand0);
    909 	} else {
    910 		if (fast)
    911 			devconfig &= ~EXTSCBTIME;
    912 		else
    913 			devconfig |= EXTSCBTIME;
    914 		if (enable)
    915 			devconfig &= ~SCBRAMSEL;
    916 		else
    917 			devconfig |= SCBRAMSEL;
    918 	}
    919 	if (pcheck)
    920 		devconfig |= EXTSCBPEN;
    921 	else
    922 		devconfig &= ~EXTSCBPEN;
    923 
    924 	pci_conf_write(bd->pc, bd->tag, DEVCONFIG, devconfig);
    925 }
    926 
    927 /*
    928  * Take a look to see if we have external SRAM.
    929  * We currently do not attempt to use SRAM that is
    930  * shared among multiple controllers.
    931  */
    932 static void
    933 ahc_probe_ext_scbram(struct ahc_softc *ahc)
    934 {
    935 	int num_scbs;
    936 	int test_num_scbs;
    937 	int enable;
    938 	int pcheck;
    939 	int fast;
    940 
    941 	if (ahc_ext_scbram_present(ahc) == 0)
    942 		return;
    943 
    944 	/*
    945 	 * Probe for the best parameters to use.
    946 	 */
    947 	enable = FALSE;
    948 	pcheck = FALSE;
    949 	fast = FALSE;
    950 	ahc_ext_scbram_config(ahc, /*enable*/TRUE, pcheck, fast);
    951 	num_scbs = ahc_probe_scbs(ahc);
    952 	if (num_scbs == 0) {
    953 		/* The SRAM wasn't really present. */
    954 		goto done;
    955 	}
    956 	enable = TRUE;
    957 
    958 	/*
    959 	 * Clear any outstanding parity error
    960 	 * and ensure that parity error reporting
    961 	 * is enabled.
    962 	 */
    963 	ahc_outb(ahc, SEQCTL, 0);
    964 	ahc_outb(ahc, CLRINT, CLRPARERR);
    965 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
    966 
    967 	/* Now see if we can do parity */
    968 	ahc_ext_scbram_config(ahc, enable, /*pcheck*/TRUE, fast);
    969 	num_scbs = ahc_probe_scbs(ahc);
    970 	if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
    971 	 || (ahc_inb(ahc, ERROR) & MPARERR) == 0)
    972 		pcheck = TRUE;
    973 
    974 	/* Clear any resulting parity error */
    975 	ahc_outb(ahc, CLRINT, CLRPARERR);
    976 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
    977 
    978 	/* Now see if we can do fast timing */
    979 	ahc_ext_scbram_config(ahc, enable, pcheck, /*fast*/TRUE);
    980 	test_num_scbs = ahc_probe_scbs(ahc);
    981 	if (test_num_scbs == num_scbs
    982 	 && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
    983 	  || (ahc_inb(ahc, ERROR) & MPARERR) == 0))
    984 		fast = TRUE;
    985 
    986 done:
    987 	/*
    988 	 * Disable parity error reporting until we
    989 	 * can load instruction ram.
    990 	 */
    991 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
    992 	/* Clear any latched parity error */
    993 	ahc_outb(ahc, CLRINT, CLRPARERR);
    994 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
    995 	if (enable) {
    996 		aprint_verbose("%s: External SRAM, %s access%s\n",
    997 		       ahc_name(ahc), fast ? "fast" : "slow",
    998 		       pcheck ? ", parity checking enabled" : "");
    999 
   1000 	}
   1001 	ahc_ext_scbram_config(ahc, enable, pcheck, fast);
   1002 }
   1003 
   1004 #define	DPE	PCI_STATUS_PARITY_DETECT
   1005 #define SSE	PCI_STATUS_SPECIAL_ERROR
   1006 #define	RMA	PCI_STATUS_MASTER_ABORT
   1007 #define	RTA	PCI_STATUS_MASTER_TARGET_ABORT
   1008 #define STA	PCI_STATUS_TARGET_TARGET_ABORT
   1009 #define DPR	PCI_STATUS_PARITY_ERROR
   1010 
   1011 int
   1012 ahc_pci_intr(struct ahc_softc *ahc)
   1013 {
   1014 	pcireg_t status1;
   1015 	struct ahc_pci_busdata *bd = ahc->bus_data;
   1016 
   1017 	if ((ahc_inb(ahc, ERROR) & PCIERRSTAT) == 0)
   1018 		return 0;
   1019 
   1020 	status1 = pci_conf_read(bd->pc, bd->tag, PCI_COMMAND_STATUS_REG);
   1021 
   1022 	if (status1 & DPE) {
   1023 		printf("%s: Data Parity Error Detected during address "
   1024 		       "or write data phase\n", ahc_name(ahc));
   1025 	}
   1026 	if (status1 & SSE) {
   1027 		printf("%s: Signal System Error Detected\n", ahc_name(ahc));
   1028 	}
   1029 	if (status1 & RMA) {
   1030 		printf("%s: Received a Master Abort\n", ahc_name(ahc));
   1031 	}
   1032 	if (status1 & RTA) {
   1033 		printf("%s: Received a Target Abort\n", ahc_name(ahc));
   1034 	}
   1035 	if (status1 & STA) {
   1036 		printf("%s: Signaled a Target Abort\n", ahc_name(ahc));
   1037 	}
   1038 	if (status1 & DPR) {
   1039 		printf("%s: Data Parity Error has been reported via PERR#\n",
   1040 		       ahc_name(ahc));
   1041 	}
   1042 	if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
   1043 		printf("%s: Latched PCIERR interrupt with "
   1044 		       "no status bits set\n", ahc_name(ahc));
   1045 	}
   1046 	pci_conf_write(bd->pc, bd->tag, PCI_COMMAND_STATUS_REG, status1);
   1047 
   1048 	if (status1 & (DPR|RMA|RTA)) {
   1049 		ahc_outb(ahc, CLRINT, CLRPARERR);
   1050 	}
   1051 
   1052 	return 1;
   1053 }
   1054 
   1055 static int
   1056 ahc_aic7850_setup(struct pci_attach_args *pa, char *channel,
   1057 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1058 {
   1059 	*channel = 'A';
   1060 	*chip = AHC_AIC7850;
   1061 	*features = AHC_AIC7850_FE;
   1062 	return (0);
   1063 }
   1064 
   1065 static int
   1066 ahc_aic7855_setup(struct pci_attach_args *pa, char *channel,
   1067 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1068 {
   1069 	*channel = 'A';
   1070 	*chip = AHC_AIC7855;
   1071 	*features = AHC_AIC7855_FE;
   1072 	return (0);
   1073 }
   1074 
   1075 static int
   1076 ahc_aic7859_setup(struct pci_attach_args *pa, char *channel,
   1077 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1078 {
   1079 	*channel = 'A';
   1080 	*chip = AHC_AIC7859;
   1081 	*features = AHC_AIC7859_FE;
   1082 	return (0);
   1083 }
   1084 
   1085 static int
   1086 ahc_aic7860_setup(struct pci_attach_args *pa, char *channel,
   1087 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1088 {
   1089 	*channel = 'A';
   1090 	*chip = AHC_AIC7860;
   1091 	*features = AHC_AIC7860_FE;
   1092 	return (0);
   1093 }
   1094 
   1095 static int
   1096 ahc_aic7870_setup(struct pci_attach_args *pa, char *channel,
   1097 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1098 {
   1099 	*channel = 'A';
   1100 	*chip = AHC_AIC7870;
   1101 	*features = AHC_AIC7870_FE;
   1102 	return (0);
   1103 }
   1104 
   1105 static int
   1106 ahc_aha394X_setup(struct pci_attach_args *pa, char *channel,
   1107 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1108 {
   1109 	int error;
   1110 
   1111 	error = ahc_aic7870_setup(pa, channel, chip, features, flags);
   1112 	if (error == 0)
   1113 		error = ahc_aha394XX_setup(pa, channel, chip, features, flags);
   1114 	return (error);
   1115 }
   1116 
   1117 static int
   1118 ahc_aha398X_setup(struct pci_attach_args *pa, char *channel,
   1119 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1120 {
   1121 	int error;
   1122 
   1123 	error = ahc_aic7870_setup(pa, channel, chip, features, flags);
   1124 	if (error == 0)
   1125 		error = ahc_aha398XX_setup(pa, channel, chip, features, flags);
   1126 	return (error);
   1127 }
   1128 
   1129 static int
   1130 ahc_aic7880_setup(struct pci_attach_args *pa, char *channel,
   1131 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1132 {
   1133 	*channel = 'A';
   1134 	*chip = AHC_AIC7880;
   1135 	*features = AHC_AIC7880_FE;
   1136 	return (0);
   1137 }
   1138 
   1139 static int
   1140 ahc_2940Pro_setup(struct pci_attach_args *pa, char *channel,
   1141 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1142 {
   1143 
   1144 	*flags |= AHC_INT50_SPEEDFLEX;
   1145 	ahc_aic7880_setup(pa, channel, chip, features, flags);
   1146 	return (0);
   1147 }
   1148 
   1149 static int
   1150 ahc_aha394XU_setup(struct pci_attach_args *pa, char *channel,
   1151 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1152 {
   1153 	int error;
   1154 
   1155 	error = ahc_aic7880_setup(pa, channel, chip, features, flags);
   1156 	if (error == 0)
   1157 		error = ahc_aha394XX_setup(pa, channel, chip, features, flags);
   1158 	return (error);
   1159 }
   1160 
   1161 static int
   1162 ahc_aha398XU_setup(struct pci_attach_args *pa, char *channel,
   1163 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1164 {
   1165 	int error;
   1166 
   1167 	error = ahc_aic7880_setup(pa, channel, chip, features, flags);
   1168 	if (error == 0)
   1169 		error = ahc_aha398XX_setup(pa, channel, chip, features, flags);
   1170 	return (error);
   1171 }
   1172 
   1173 static int
   1174 ahc_aic7890_setup(struct pci_attach_args *pa, char *channel,
   1175 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1176 {
   1177 	*channel = 'A';
   1178 	*chip = AHC_AIC7890;
   1179 	*features = AHC_AIC7890_FE;
   1180 	*flags |= AHC_NEWEEPROM_FMT;
   1181 	return (0);
   1182 }
   1183 
   1184 static int
   1185 ahc_aic7892_setup(struct pci_attach_args *pa, char *channel,
   1186 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1187 {
   1188 	*channel = 'A';
   1189 	*chip = AHC_AIC7892;
   1190 	*features = AHC_AIC7892_FE;
   1191 	*flags |= AHC_NEWEEPROM_FMT;
   1192 	return (0);
   1193 }
   1194 
   1195 static int
   1196 ahc_aic7895_setup(struct pci_attach_args *pa, char *channel,
   1197 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1198 {
   1199 	pcireg_t devconfig;
   1200 
   1201 	*channel = pa->pa_function == 1 ? 'B' : 'A';
   1202 	*chip = AHC_AIC7895;
   1203 	/* The 'C' revision of the aic7895 has a few additional features */
   1204 	if (PCI_REVISION(pa->pa_class) >= 4)
   1205 		*features = AHC_AIC7895C_FE;
   1206 	else
   1207 		*features = AHC_AIC7895_FE;
   1208 	*flags |= AHC_NEWEEPROM_FMT;
   1209 	devconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
   1210 	devconfig &= ~SCBSIZE32;
   1211 	pci_conf_write(pa->pa_pc, pa->pa_tag, DEVCONFIG, devconfig);
   1212 	return (0);
   1213 }
   1214 
   1215 static int
   1216 ahc_aic7896_setup(struct pci_attach_args *pa, char *channel,
   1217 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1218 {
   1219 	*channel = pa->pa_function == 1 ? 'B' : 'A';
   1220 	*chip = AHC_AIC7896;
   1221 	*features = AHC_AIC7896_FE;
   1222 	*flags |= AHC_NEWEEPROM_FMT;
   1223 	return (0);
   1224 }
   1225 
   1226 static int
   1227 ahc_aic7899_setup(struct pci_attach_args *pa, char *channel,
   1228 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1229 {
   1230 	*channel = pa->pa_function == 1 ? 'B' : 'A';
   1231 	*chip = AHC_AIC7899;
   1232 	*features = AHC_AIC7899_FE;
   1233 	*flags |= AHC_NEWEEPROM_FMT;
   1234 	return (0);
   1235 }
   1236 
   1237 static int
   1238 ahc_raid_setup(struct pci_attach_args *pa, char *channel,
   1239 	       ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1240 {
   1241 	printf(": RAID functionality unsupported\n");
   1242 	return (ENXIO);
   1243 }
   1244 
   1245 static int
   1246 ahc_aha394XX_setup(struct pci_attach_args *pa, char *channel,
   1247 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1248 {
   1249 	switch (pa->pa_device) {
   1250 	case AHC_394X_SLOT_CHANNEL_A:
   1251 		*channel = 'A';
   1252 		break;
   1253 	case AHC_394X_SLOT_CHANNEL_B:
   1254 		*channel = 'B';
   1255 		break;
   1256 	default:
   1257 		printf("adapter at unexpected slot %d\n"
   1258 		       "unable to map to a channel\n",
   1259 		       pa->pa_device);
   1260 		*channel = 'A';
   1261 	}
   1262 	return (0);
   1263 }
   1264 
   1265 static int
   1266 ahc_aha398XX_setup(struct pci_attach_args *pa, char *channel,
   1267 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1268 {
   1269 	switch (pa->pa_device) {
   1270 	case AHC_398X_SLOT_CHANNEL_A:
   1271 		*channel = 'A';
   1272 		break;
   1273 	case AHC_398X_SLOT_CHANNEL_B:
   1274 		*channel = 'B';
   1275 		break;
   1276 	case AHC_398X_SLOT_CHANNEL_C:
   1277 		*channel = 'C';
   1278 		break;
   1279 	default:
   1280 		printf("adapter at unexpected slot %d\n"
   1281 		       "unable to map to a channel\n",
   1282 		       pa->pa_device);
   1283 		*channel = 'A';
   1284 	}
   1285 	*flags |= AHC_LARGE_SEEPROM;
   1286 	return (0);
   1287 }
   1288