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ahc_pci.c revision 1.19.2.3
      1 /*	$NetBSD: ahc_pci.c,v 1.19.2.3 2001/02/11 19:15:47 bouyer 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/param.h>
     39 #include <sys/systm.h>
     40 #include <sys/malloc.h>
     41 #include <sys/kernel.h>
     42 #include <sys/queue.h>
     43 #include <sys/device.h>
     44 #include <sys/reboot.h>
     45 
     46 #include <machine/bus.h>
     47 #include <machine/intr.h>
     48 
     49 #include <dev/pci/pcireg.h>
     50 #include <dev/pci/pcivar.h>
     51 
     52 /* XXXX some i386 on-board chips act weird when memory-mapped */
     53 #ifndef __i386__
     54 #define AHC_ALLOW_MEMIO
     55 #endif
     56 
     57 #define AHC_PCI_IOADDR	PCI_MAPREG_START	/* I/O Address */
     58 #define AHC_PCI_MEMADDR	(PCI_MAPREG_START + 4)	/* Mem I/O Address */
     59 
     60 #include <dev/scsipi/scsi_all.h>
     61 #include <dev/scsipi/scsipi_all.h>
     62 #include <dev/scsipi/scsiconf.h>
     63 
     64 #include <dev/ic/aic7xxxvar.h>
     65 #include <dev/ic/smc93cx6var.h>
     66 
     67 #include <dev/microcode/aic7xxx/aic7xxx_reg.h>
     68 
     69 struct ahc_pci_busdata {
     70 	pci_chipset_tag_t pc;
     71 	pcitag_t tag;
     72 	u_int dev;
     73 	u_int func;
     74 };
     75 
     76 static __inline u_int64_t
     77 ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
     78 {
     79 	u_int64_t id;
     80 
     81 	id = subvendor
     82 	   | (subdevice << 16)
     83 	   | ((u_int64_t)vendor << 32)
     84 	   | ((u_int64_t)device << 48);
     85 
     86 	return (id);
     87 }
     88 
     89 #define ID_ALL_MASK		0xFFFFFFFFFFFFFFFFull
     90 #define ID_DEV_VENDOR_MASK	0xFFFFFFFF00000000ull
     91 #define ID_AIC7850		0x5078900400000000ull
     92 #define ID_AHA_2910_15_20_30C	0x5078900478509004ull
     93 #define ID_AIC7855		0x5578900400000000ull
     94 #define ID_AIC7859		0x3860900400000000ull
     95 #define ID_AHA_2930CU		0x3860900438699004ull
     96 #define ID_AIC7860		0x6078900400000000ull
     97 #define ID_AIC7860C		0x6078900478609004ull
     98 #define ID_AHA_2940AU_0		0x6178900400000000ull
     99 #define ID_AHA_2940AU_1		0x6178900478619004ull
    100 #define ID_AHA_2940AU_CN	0x2178900478219004ull
    101 #define ID_AHA_2930C_VAR	0x6038900438689004ull
    102 
    103 #define ID_AIC7870		0x7078900400000000ull
    104 #define ID_AHA_2940		0x7178900400000000ull
    105 #define ID_AHA_3940		0x7278900400000000ull
    106 #define ID_AHA_398X		0x7378900400000000ull
    107 #define ID_AHA_2944		0x7478900400000000ull
    108 #define ID_AHA_3944		0x7578900400000000ull
    109 
    110 #define ID_AIC7880		0x8078900400000000ull
    111 #define ID_AIC7880_B		0x8078900478809004ull
    112 #define ID_AHA_2940U		0x8178900400000000ull
    113 #define ID_AHA_3940U		0x8278900400000000ull
    114 #define ID_AHA_2944U		0x8478900400000000ull
    115 #define ID_AHA_3944U		0x8578900400000000ull
    116 #define ID_AHA_398XU		0x8378900400000000ull
    117 #define ID_AHA_4944U		0x8678900400000000ull
    118 #define ID_AHA_2940UB		0x8178900478819004ull
    119 #define ID_AHA_2930U		0x8878900478889004ull
    120 #define ID_AHA_2940U_PRO	0x8778900478879004ull
    121 #define ID_AHA_2940U_CN		0x0078900478009004ull
    122 
    123 #define ID_AIC7895		0x7895900478959004ull
    124 #define ID_AIC7895_RAID_PORT	0x7893900478939004ull
    125 #define ID_AHA_2940U_DUAL	0x7895900478919004ull
    126 #define ID_AHA_3940AU		0x7895900478929004ull
    127 #define ID_AHA_3944AU		0x7895900478949004ull
    128 
    129 #define ID_AIC7890		0x001F9005000F9005ull
    130 #define ID_AAA_131U2		0x0013900500039005ull
    131 #define ID_AHA_2930U2		0x0011900501819005ull
    132 #define ID_AHA_2940U2B		0x00109005A1009005ull
    133 #define ID_AHA_2940U2_OEM	0x0010900521809005ull
    134 #define ID_AHA_2940U2		0x00109005A1809005ull
    135 #define ID_AHA_2950U2B		0x00109005E1009005ull
    136 
    137 #define ID_AIC7892		0x008F9005FFFF9005ull
    138 #define ID_AHA_29160		0x00809005E2A09005ull
    139 #define ID_AHA_29160_CPQ	0x00809005E2A00E11ull
    140 #define ID_AHA_29160N		0x0080900562A09005ull
    141 #define ID_AHA_29160B		0x00809005E2209005ull
    142 #define ID_AHA_19160B		0x0081900562A19005ull
    143 
    144 #define ID_AIC7896		0x005F9005FFFF9005ull
    145 #define ID_AHA_3950U2B_0	0x00509005FFFF9005ull
    146 #define ID_AHA_3950U2B_1	0x00509005F5009005ull
    147 #define ID_AHA_3950U2D_0	0x00519005FFFF9005ull
    148 #define ID_AHA_3950U2D_1	0x00519005B5009005ull
    149 
    150 #define ID_AIC7899		0x00CF9005FFFF9005ull
    151 #define ID_AHA_3960D		0x00C09005F6209005ull /* AKA AHA-39160 */
    152 #define ID_AHA_3960D_CPQ	0x00C09005F6200E11ull
    153 
    154 #define ID_AIC7810		0x1078900400000000ull
    155 #define ID_AIC7815		0x7815900400000000ull
    156 
    157 typedef int (ahc_device_setup_t)(struct pci_attach_args *, char *,
    158 				 ahc_chip *, ahc_feature *, ahc_flag *);
    159 
    160 static ahc_device_setup_t ahc_aic7850_setup;
    161 static ahc_device_setup_t ahc_aic7855_setup;
    162 static ahc_device_setup_t ahc_aic7859_setup;
    163 static ahc_device_setup_t ahc_aic7860_setup;
    164 static ahc_device_setup_t ahc_aic7870_setup;
    165 static ahc_device_setup_t ahc_aha394X_setup;
    166 static ahc_device_setup_t ahc_aha398X_setup;
    167 static ahc_device_setup_t ahc_aic7880_setup;
    168 static ahc_device_setup_t ahc_2940Pro_setup;
    169 static ahc_device_setup_t ahc_aha394XU_setup;
    170 static ahc_device_setup_t ahc_aha398XU_setup;
    171 static ahc_device_setup_t ahc_aic7890_setup;
    172 static ahc_device_setup_t ahc_aic7892_setup;
    173 static ahc_device_setup_t ahc_aic7895_setup;
    174 static ahc_device_setup_t ahc_aic7896_setup;
    175 static ahc_device_setup_t ahc_aic7899_setup;
    176 static ahc_device_setup_t ahc_raid_setup;
    177 static ahc_device_setup_t ahc_aha394XX_setup;
    178 static ahc_device_setup_t ahc_aha398XX_setup;
    179 
    180 struct ahc_pci_identity {
    181 	u_int64_t		 full_id;
    182 	u_int64_t		 id_mask;
    183 	const char		*name;
    184 	ahc_device_setup_t	*setup;
    185 };
    186 
    187 const struct ahc_pci_identity ahc_pci_ident_table [] =
    188 {
    189 	/* aic7850 based controllers */
    190 	{
    191 		ID_AHA_2910_15_20_30C,
    192 		ID_ALL_MASK,
    193 		"Adaptec 2910/15/20/30C SCSI adapter",
    194 		ahc_aic7850_setup
    195 	},
    196 	/* aic7859 based controllers */
    197 	{
    198 		ID_AHA_2930CU,
    199 		ID_ALL_MASK,
    200 		"Adaptec 2930CU SCSI adapter",
    201 		ahc_aic7859_setup
    202 	},
    203 	/* aic7860 based controllers */
    204 	{
    205 		ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
    206 		ID_DEV_VENDOR_MASK,
    207 		"Adaptec 2940A Ultra SCSI adapter",
    208 		ahc_aic7860_setup
    209 	},
    210 	{
    211 		ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
    212 		ID_DEV_VENDOR_MASK,
    213 		"Adaptec 2940A/CN Ultra SCSI adapter",
    214 		ahc_aic7860_setup
    215 	},
    216 	{
    217 		ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
    218 		ID_DEV_VENDOR_MASK,
    219 		"Adaptec 2930C SCSI adapter (VAR)",
    220 		ahc_aic7860_setup
    221 	},
    222 	/* aic7870 based controllers */
    223 	{
    224 		ID_AHA_2940,
    225 		ID_ALL_MASK,
    226 		"Adaptec 2940 SCSI adapter",
    227 		ahc_aic7870_setup
    228 	},
    229 	{
    230 		ID_AHA_3940,
    231 		ID_ALL_MASK,
    232 		"Adaptec 3940 SCSI adapter",
    233 		ahc_aha394X_setup
    234 	},
    235 	{
    236 		ID_AHA_398X,
    237 		ID_ALL_MASK,
    238 		"Adaptec 398X SCSI RAID adapter",
    239 		ahc_aha398X_setup
    240 	},
    241 	{
    242 		ID_AHA_2944,
    243 		ID_ALL_MASK,
    244 		"Adaptec 2944 SCSI adapter",
    245 		ahc_aic7870_setup
    246 	},
    247 	{
    248 		ID_AHA_3944,
    249 		ID_ALL_MASK,
    250 		"Adaptec 3944 SCSI adapter",
    251 		ahc_aha394X_setup
    252 	},
    253 	/* aic7880 based controllers */
    254 	{
    255 		ID_AHA_2940U & ID_DEV_VENDOR_MASK,
    256 		ID_DEV_VENDOR_MASK,
    257 		"Adaptec 2940 Ultra SCSI adapter",
    258 		ahc_aic7880_setup
    259 	},
    260 	{
    261 		ID_AHA_3940U & ID_DEV_VENDOR_MASK,
    262 		ID_DEV_VENDOR_MASK,
    263 		"Adaptec 3940 Ultra SCSI adapter",
    264 		ahc_aha394XU_setup
    265 	},
    266 	{
    267 		ID_AHA_2944U & ID_DEV_VENDOR_MASK,
    268 		ID_DEV_VENDOR_MASK,
    269 		"Adaptec 2944 Ultra SCSI adapter",
    270 		ahc_aic7880_setup
    271 	},
    272 	{
    273 		ID_AHA_3944U & ID_DEV_VENDOR_MASK,
    274 		ID_DEV_VENDOR_MASK,
    275 		"Adaptec 3944 Ultra SCSI adapter",
    276 		ahc_aha394XU_setup
    277 	},
    278 	{
    279 		ID_AHA_398XU & ID_DEV_VENDOR_MASK,
    280 		ID_DEV_VENDOR_MASK,
    281 		"Adaptec 398X Ultra SCSI RAID adapter",
    282 		ahc_aha398XU_setup
    283 	},
    284 	{
    285 		/*
    286 		 * XXX Don't know the slot numbers
    287 		 * so we can't identify channels
    288 		 */
    289 		ID_AHA_4944U & ID_DEV_VENDOR_MASK,
    290 		ID_DEV_VENDOR_MASK,
    291 		"Adaptec 4944 Ultra SCSI adapter",
    292 		ahc_aic7880_setup
    293 	},
    294 	{
    295 		ID_AHA_2930U & ID_DEV_VENDOR_MASK,
    296 		ID_DEV_VENDOR_MASK,
    297 		"Adaptec 2930 Ultra SCSI adapter",
    298 		ahc_aic7880_setup
    299 	},
    300 	{
    301 		ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
    302 		ID_DEV_VENDOR_MASK,
    303 		"Adaptec 2940 Pro Ultra SCSI adapter",
    304 		ahc_2940Pro_setup
    305 	},
    306 	{
    307 		ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
    308 		ID_DEV_VENDOR_MASK,
    309 		"Adaptec 2940/CN Ultra SCSI adapter",
    310 		ahc_aic7880_setup
    311 	},
    312 	/* aic7890 based controllers */
    313 	{
    314 		ID_AHA_2930U2,
    315 		ID_ALL_MASK,
    316 		"Adaptec 2930 Ultra2 SCSI adapter",
    317 		ahc_aic7890_setup
    318 	},
    319 	{
    320 		ID_AHA_2940U2B,
    321 		ID_ALL_MASK,
    322 		"Adaptec 2940B Ultra2 SCSI adapter",
    323 		ahc_aic7890_setup
    324 	},
    325 	{
    326 		ID_AHA_2940U2_OEM,
    327 		ID_ALL_MASK,
    328 		"Adaptec 2940 Ultra2 SCSI adapter (OEM)",
    329 		ahc_aic7890_setup
    330 	},
    331 	{
    332 		ID_AHA_2940U2,
    333 		ID_ALL_MASK,
    334 		"Adaptec 2940 Ultra2 SCSI adapter",
    335 		ahc_aic7890_setup
    336 	},
    337 	{
    338 		ID_AHA_2950U2B,
    339 		ID_ALL_MASK,
    340 		"Adaptec 2950 Ultra2 SCSI adapter",
    341 		ahc_aic7890_setup
    342 	},
    343 	{
    344 		ID_AAA_131U2,
    345 		ID_ALL_MASK,
    346 		"Adaptec AAA-131 Ultra2 RAID adapter",
    347 		ahc_aic7890_setup
    348 	},
    349 	/* aic7892 based controllers */
    350 	{
    351 		ID_AHA_29160,
    352 		ID_ALL_MASK,
    353 		"Adaptec 29160 Ultra160 SCSI adapter",
    354 		ahc_aic7892_setup
    355 	},
    356 	{
    357 		ID_AHA_29160_CPQ,
    358 		ID_ALL_MASK,
    359 		"Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
    360 		ahc_aic7892_setup
    361 	},
    362 	{
    363 		ID_AHA_29160N,
    364 		ID_ALL_MASK,
    365 		"Adaptec 29160N Ultra160 SCSI adapter",
    366 		ahc_aic7892_setup
    367 	},
    368 	{
    369 		ID_AHA_29160B,
    370 		ID_ALL_MASK,
    371 		"Adaptec 29160B Ultra160 SCSI adapter",
    372 		ahc_aic7892_setup
    373 	},
    374 	{
    375 		ID_AHA_19160B,
    376 		ID_ALL_MASK,
    377 		"Adaptec 19160B Ultra160 SCSI adapter",
    378 		ahc_aic7892_setup
    379 	},
    380 	/* aic7895 based controllers */
    381 	{
    382 		ID_AHA_2940U_DUAL,
    383 		ID_ALL_MASK,
    384 		"Adaptec 2940/DUAL Ultra SCSI adapter",
    385 		ahc_aic7895_setup
    386 	},
    387 	{
    388 		ID_AHA_3940AU,
    389 		ID_ALL_MASK,
    390 		"Adaptec 3940A Ultra SCSI adapter",
    391 		ahc_aic7895_setup
    392 	},
    393 	{
    394 		ID_AHA_3944AU,
    395 		ID_ALL_MASK,
    396 		"Adaptec 3944A Ultra SCSI adapter",
    397 		ahc_aic7895_setup
    398 	},
    399 	/* aic7896/97 based controllers */
    400 	{
    401 		ID_AHA_3950U2B_0,
    402 		ID_ALL_MASK,
    403 		"Adaptec 3950B Ultra2 SCSI adapter",
    404 		ahc_aic7896_setup
    405 	},
    406 	{
    407 		ID_AHA_3950U2B_1,
    408 		ID_ALL_MASK,
    409 		"Adaptec 3950B Ultra2 SCSI adapter",
    410 		ahc_aic7896_setup
    411 	},
    412 	{
    413 		ID_AHA_3950U2D_0,
    414 		ID_ALL_MASK,
    415 		"Adaptec 3950D Ultra2 SCSI adapter",
    416 		ahc_aic7896_setup
    417 	},
    418 	{
    419 		ID_AHA_3950U2D_1,
    420 		ID_ALL_MASK,
    421 		"Adaptec 3950D Ultra2 SCSI adapter",
    422 		ahc_aic7896_setup
    423 	},
    424 	/* aic7899 based controllers */
    425 	{
    426 		ID_AHA_3960D,
    427 		ID_ALL_MASK,
    428 		"Adaptec 3960D Ultra160 SCSI adapter",
    429 		ahc_aic7899_setup
    430 	},
    431 	{
    432 		ID_AHA_3960D_CPQ,
    433 		ID_ALL_MASK,
    434 		"Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
    435 		ahc_aic7899_setup
    436 	},
    437 	/* Generic chip probes for devices we don't know 'exactly' */
    438 	{
    439 		ID_AIC7850 & ID_DEV_VENDOR_MASK,
    440 		ID_DEV_VENDOR_MASK,
    441 		"Adaptec aic7850 SCSI adapter",
    442 		ahc_aic7850_setup
    443 	},
    444 	{
    445 		ID_AIC7855 & ID_DEV_VENDOR_MASK,
    446 		ID_DEV_VENDOR_MASK,
    447 		"Adaptec aic7855 SCSI adapter",
    448 		ahc_aic7855_setup
    449 	},
    450 	{
    451 		ID_AIC7859 & ID_DEV_VENDOR_MASK,
    452 		ID_DEV_VENDOR_MASK,
    453 		"Adaptec aic7859 SCSI adapter",
    454 		ahc_aic7859_setup
    455 	},
    456 	{
    457 		ID_AIC7860 & ID_DEV_VENDOR_MASK,
    458 		ID_DEV_VENDOR_MASK,
    459 		"Adaptec aic7860 SCSI adapter",
    460 		ahc_aic7860_setup
    461 	},
    462 	{
    463 		ID_AIC7870 & ID_DEV_VENDOR_MASK,
    464 		ID_DEV_VENDOR_MASK,
    465 		"Adaptec aic7870 SCSI adapter",
    466 		ahc_aic7870_setup
    467 	},
    468 	{
    469 		ID_AIC7880 & ID_DEV_VENDOR_MASK,
    470 		ID_DEV_VENDOR_MASK,
    471 		"Adaptec aic7880 Ultra SCSI adapter",
    472 		ahc_aic7880_setup
    473 	},
    474 	{
    475 		ID_AIC7890 & ID_DEV_VENDOR_MASK,
    476 		ID_DEV_VENDOR_MASK,
    477 		"Adaptec aic7890/91 Ultra2 SCSI adapter",
    478 		ahc_aic7890_setup
    479 	},
    480 	{
    481 		ID_AIC7892 & ID_DEV_VENDOR_MASK,
    482 		ID_DEV_VENDOR_MASK,
    483 		"Adaptec aic7892 Ultra160 SCSI adapter",
    484 		ahc_aic7892_setup
    485 	},
    486 	{
    487 		ID_AIC7895 & ID_DEV_VENDOR_MASK,
    488 		ID_DEV_VENDOR_MASK,
    489 		"Adaptec aic7895 Ultra SCSI adapter",
    490 		ahc_aic7895_setup
    491 	},
    492 	{
    493 		ID_AIC7895_RAID_PORT & ID_DEV_VENDOR_MASK,
    494 		ID_DEV_VENDOR_MASK,
    495 		"Adaptec aic7895 Ultra SCSI adapter (RAID PORT)",
    496 		ahc_aic7895_setup
    497 	},
    498 	{
    499 		ID_AIC7896 & ID_DEV_VENDOR_MASK,
    500 		ID_DEV_VENDOR_MASK,
    501 		"Adaptec aic7896/97 Ultra2 SCSI adapter",
    502 		ahc_aic7896_setup
    503 	},
    504 	{
    505 		ID_AIC7899 & ID_DEV_VENDOR_MASK,
    506 		ID_DEV_VENDOR_MASK,
    507 		"Adaptec aic7899 Ultra160 SCSI adapter",
    508 		ahc_aic7899_setup
    509 	},
    510 	{
    511 		ID_AIC7810 & ID_DEV_VENDOR_MASK,
    512 		ID_DEV_VENDOR_MASK,
    513 		"Adaptec aic7810 RAID memory controller",
    514 		ahc_raid_setup
    515 	},
    516 	{
    517 		ID_AIC7815 & ID_DEV_VENDOR_MASK,
    518 		ID_DEV_VENDOR_MASK,
    519 		"Adaptec aic7815 RAID memory controller",
    520 		ahc_raid_setup
    521 	}
    522 };
    523 
    524 static const int ahc_num_pci_devs =
    525 	sizeof(ahc_pci_ident_table) / sizeof(*ahc_pci_ident_table);
    526 
    527 #define AHC_394X_SLOT_CHANNEL_A	4
    528 #define AHC_394X_SLOT_CHANNEL_B	5
    529 
    530 #define AHC_398X_SLOT_CHANNEL_A	4
    531 #define AHC_398X_SLOT_CHANNEL_B	8
    532 #define AHC_398X_SLOT_CHANNEL_C	12
    533 
    534 #define	DEVCONFIG		0x40
    535 #define		SCBSIZE32	0x00010000	/* aic789X only */
    536 #define		MPORTMODE	0x00000400	/* aic7870 only */
    537 #define		RAMPSM		0x00000200	/* aic7870 only */
    538 #define		VOLSENSE	0x00000100
    539 #define		SCBRAMSEL	0x00000080
    540 #define		MRDCEN		0x00000040
    541 #define		EXTSCBTIME	0x00000020	/* aic7870 only */
    542 #define		EXTSCBPEN	0x00000010	/* aic7870 only */
    543 #define		BERREN		0x00000008
    544 #define		DACEN		0x00000004
    545 #define		STPWLEVEL	0x00000002
    546 #define		DIFACTNEGEN	0x00000001	/* aic7870 only */
    547 
    548 #define	CSIZE_LATTIME		0x0c
    549 #define		CACHESIZE	0x0000003f	/* only 5 bits */
    550 #define		LATTIME		0x0000ff00
    551 
    552 static const struct ahc_pci_identity *ahc_find_pci_device(pcireg_t, pcireg_t);
    553 static int ahc_ext_scbram_present(struct ahc_softc *ahc);
    554 static void ahc_ext_scbram_config(struct ahc_softc *ahc, int enable,
    555 				  int pcheck, int fast);
    556 static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
    557 
    558 int ahc_pci_probe __P((struct device *, struct cfdata *, void *));
    559 void ahc_pci_attach __P((struct device *, struct device *, void *));
    560 
    561 /* Exported for use in the ahc_intr routine */
    562 int ahc_pci_intr(struct ahc_softc *ahc);
    563 
    564 struct cfattach ahc_pci_ca = {
    565         sizeof(struct ahc_softc), ahc_pci_probe, ahc_pci_attach
    566 };
    567 
    568 static const struct ahc_pci_identity *
    569 ahc_find_pci_device(id, subid)
    570 	pcireg_t id, subid;
    571 {
    572 	u_int64_t  full_id;
    573 	const struct	   ahc_pci_identity *entry;
    574 	u_int	   i;
    575 
    576 	full_id = ahc_compose_id(PCI_PRODUCT(id), PCI_VENDOR(id),
    577 				 PCI_PRODUCT(subid), PCI_VENDOR(subid));
    578 
    579 	for (i = 0; i < ahc_num_pci_devs; i++) {
    580 		entry = &ahc_pci_ident_table[i];
    581 		if (entry->full_id == (full_id & entry->id_mask))
    582 			return (entry);
    583 	}
    584 	return (NULL);
    585 }
    586 
    587 int
    588 ahc_pci_probe(parent, match, aux)
    589 	struct device *parent;
    590 	struct cfdata *match;
    591 	void *aux;
    592 {
    593 	struct pci_attach_args *pa = aux;
    594 	const struct	   ahc_pci_identity *entry;
    595 	pcireg_t   subid;
    596 
    597 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
    598 	entry = ahc_find_pci_device(pa->pa_id, subid);
    599 	return entry != NULL ? 1 : 0;
    600 }
    601 
    602 void
    603 ahc_pci_attach(parent, self, aux)
    604 	struct device *parent, *self;
    605 	void *aux;
    606 {
    607 	struct pci_attach_args *pa = aux;
    608 	const struct	   ahc_pci_identity *entry;
    609 	struct		   ahc_softc *ahc = (void *)self;
    610 	pcireg_t	   command;
    611 	ahc_chip	   ahc_t = AHC_NONE;
    612 	ahc_feature	   ahc_fe = AHC_FENONE;
    613 	ahc_flag	   ahc_f = AHC_FNONE;
    614 	u_int		   our_id = 0;
    615 	u_int		   sxfrctl1;
    616 	u_int		   scsiseq;
    617 	int		   error;
    618 	char		   channel;
    619 	pcireg_t	   subid;
    620 	int		   ioh_valid, memh_valid;
    621 	bus_space_tag_t st, iot;
    622 	bus_space_handle_t sh, ioh;
    623 #ifdef AHC_ALLOW_MEMIO
    624 	bus_space_tag_t memt;
    625 	bus_space_handle_t memh;
    626 	pcireg_t memtype;
    627 #endif
    628 	pci_intr_handle_t ih;
    629 	const char *intrstr;
    630 	struct ahc_pci_busdata *bd;
    631 
    632 	command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    633 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
    634 	entry = ahc_find_pci_device(pa->pa_id, subid);
    635 	if (entry == NULL)
    636 		return;
    637 	error = entry->setup(pa, &channel, &ahc_t, &ahc_fe, &ahc_f);
    638 	if (error != 0)
    639 		return;
    640 
    641 	ioh_valid = memh_valid = 0;
    642 
    643 #ifdef AHC_ALLOW_MEMIO
    644 	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, AHC_PCI_MEMADDR);
    645 	switch (memtype) {
    646 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
    647 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
    648 		memh_valid = (pci_mapreg_map(pa, AHC_PCI_MEMADDR,
    649 		    memtype, 0, &memt, &memh, NULL, NULL) == 0);
    650 		break;
    651 	default:
    652 		memh_valid = 0;
    653 	}
    654 #endif
    655 	ioh_valid = (pci_mapreg_map(pa, AHC_PCI_IOADDR,
    656 	    PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, NULL) == 0);
    657 
    658 	if (ioh_valid) {
    659 		st = iot;
    660 		sh = ioh;
    661 #ifdef AHC_ALLOW_MEMIO
    662 	} else if (memh_valid) {
    663 		st = memt;
    664 		sh = memh;
    665 #endif
    666 	} else {
    667 		printf(": unable to map registers\n");
    668 		return;
    669 	}
    670 
    671 	printf("\n");
    672 
    673 
    674 	/* Ensure busmastering is enabled */
    675 	command |= PCI_COMMAND_MASTER_ENABLE;;
    676 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    677 
    678 	/* On all PCI adapters, we allow SCB paging */
    679 	ahc_f |= AHC_PAGESCBS;
    680 	if (ahc_alloc(ahc, sh, st, pa->pa_dmat,
    681 	    ahc_t|AHC_PCI, ahc_fe, ahc_f) < 0)
    682 		return;
    683 
    684 	bd = malloc(sizeof (struct ahc_pci_busdata), M_DEVBUF, M_NOWAIT);
    685 	if (bd == NULL) {
    686 		printf(": unable to allocate bus-specific data\n");
    687 		return;
    688 	}
    689 
    690 	bd->pc = pa->pa_pc;
    691 	bd->tag = pa->pa_tag;
    692 	bd->func = pa->pa_function;
    693 	bd->dev = pa->pa_device;
    694 
    695 	ahc->bus_data = bd;
    696 	ahc->bus_intr = ahc_pci_intr;
    697 	ahc->channel = channel;
    698 
    699 	/* Remeber how the card was setup in case there is no SEEPROM */
    700 	ahc_outb(ahc, HCNTRL, ahc->pause);
    701 	if ((ahc->features & AHC_ULTRA2) != 0)
    702 		our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
    703 	else
    704 		our_id = ahc_inb(ahc, SCSIID) & OID;
    705 	sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
    706 	scsiseq = ahc_inb(ahc, SCSISEQ);
    707 
    708 	if (ahc_reset(ahc) != 0) {
    709 		/* Failed */
    710 		ahc_free(ahc);
    711 		return;
    712 	}
    713 
    714 	if ((ahc->features & AHC_DT) != 0) {
    715 		u_int optionmode;
    716 		u_int sfunct;
    717 
    718 		/* Perform ALT-Mode Setup */
    719 		sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
    720 		ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
    721 		optionmode = ahc_inb(ahc, OPTIONMODE);
    722 		printf("OptionMode = %x\n", optionmode);
    723 		ahc_outb(ahc, OPTIONMODE, OPTIONMODE_DEFAULTS);
    724 		/* Send CRC info in target mode every 4K */
    725 		ahc_outb(ahc, TARGCRCCNT, 0);
    726 		ahc_outb(ahc, TARGCRCCNT + 1, 0x10);
    727 		ahc_outb(ahc, SFUNCT, sfunct);
    728 
    729 		/* Normal mode setup */
    730 		ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
    731 					  |TARGCRCENDEN|TARGCRCCNTEN);
    732 	}
    733 
    734 	if (pci_intr_map(pa, &ih)) {
    735 		printf("%s: couldn't map interrupt\n", ahc->sc_dev.dv_xname);
    736 		ahc_free(ahc);
    737 		return;
    738 	}
    739 	intrstr = pci_intr_string(pa->pa_pc, ih);
    740 	ahc->ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, ahc_intr, ahc);
    741 	if (ahc->ih == NULL) {
    742 		printf("%s: couldn't establish interrupt",
    743 		       ahc->sc_dev.dv_xname);
    744 		if (intrstr != NULL)
    745 			printf(" at %s", intrstr);
    746 		printf("\n");
    747 		ahc_free(ahc);
    748 		return;
    749 	}
    750 	if (intrstr != NULL)
    751 		printf("%s: interrupting at %s\n", ahc->sc_dev.dv_xname,
    752 		       intrstr);
    753 
    754 	/*
    755 	 * Do aic7880/aic7870/aic7860/aic7850 specific initialization
    756 	 */
    757 	{
    758 		u_int8_t sblkctl;
    759 		u_int dscommand0;
    760 
    761 		dscommand0 = ahc_inb(ahc, DSCOMMAND0);
    762 		dscommand0 |= MPARCKEN;
    763 		if ((ahc->features & AHC_ULTRA2) != 0) {
    764 
    765 			/*
    766 			 * DPARCKEN doesn't work correctly on
    767 			 * some MBs so don't use it.
    768 			 */
    769 			dscommand0 &= ~(USCBSIZE32|DPARCKEN);
    770 			dscommand0 |= CACHETHEN;
    771 		}
    772 
    773 		ahc_outb(ahc, DSCOMMAND0, dscommand0);
    774 
    775 		/* See if we have an SEEPROM and perform auto-term */
    776 		check_extport(ahc, &sxfrctl1);
    777 
    778 		/*
    779 		 * Take the LED out of diagnostic mode
    780 		 */
    781 		sblkctl = ahc_inb(ahc, SBLKCTL);
    782 		ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
    783 
    784 		/*
    785 		 * I don't know where this is set in the SEEPROM or by the
    786 		 * BIOS, so we default to 100% on Ultra or slower controllers
    787 		 * and 75% on ULTRA2 controllers.
    788 		 */
    789 		if ((ahc->features & AHC_ULTRA2) != 0) {
    790 			ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_75|WR_DFTHRSH_75);
    791 		} else {
    792 			ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
    793 		}
    794 
    795 		if (ahc->flags & AHC_USEDEFAULTS) {
    796 			/*
    797 			 * PCI Adapter default setup
    798 			 * Should only be used if the adapter does not have
    799 			 * an SEEPROM.
    800 			 */
    801 			/* See if someone else set us up already */
    802 			if (scsiseq != 0) {
    803 				printf("%s: Using left over BIOS settings\n",
    804 					ahc_name(ahc));
    805 				ahc->flags &= ~AHC_USEDEFAULTS;
    806 			} else {
    807 				/*
    808 				 * Assume only one connector and always turn
    809 				 * on termination.
    810 				 */
    811  				our_id = 0x07;
    812 				sxfrctl1 = STPWEN;
    813 			}
    814 			ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
    815 
    816 			ahc->our_id = our_id;
    817 		}
    818 	}
    819 
    820 	/*
    821 	 * Take a look to see if we have external SRAM.
    822 	 * We currently do not attempt to use SRAM that is
    823 	 * shared among multiple controllers.
    824 	 */
    825 	ahc_probe_ext_scbram(ahc);
    826 
    827 
    828 	printf("%s: %s ", ahc_name(ahc),
    829 	       ahc_chip_names[ahc->chip & AHC_CHIPID_MASK]);
    830 
    831 	/*
    832 	 * Record our termination setting for the
    833 	 * generic initialization routine.
    834 	 */
    835 	if ((sxfrctl1 & STPWEN) != 0)
    836 		ahc->flags |= AHC_TERM_ENB_A;
    837 
    838 	if (ahc_init(ahc)) {
    839 		ahc_free(ahc);
    840 		return;
    841 	}
    842 
    843 	ahc_attach(ahc);
    844 }
    845 
    846 /*
    847  * Test for the presense of external sram in an
    848  * "unshared" configuration.
    849  */
    850 static int
    851 ahc_ext_scbram_present(struct ahc_softc *ahc)
    852 {
    853 	int ramps;
    854 	int single_user;
    855 	pcireg_t devconfig;
    856 	struct ahc_pci_busdata *bd = ahc->bus_data;
    857 
    858 	devconfig = pci_conf_read(bd->pc, bd->tag, DEVCONFIG);
    859 	single_user = (devconfig & MPORTMODE) != 0;
    860 
    861 	if ((ahc->features & AHC_ULTRA2) != 0)
    862 		ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
    863 	else if ((ahc->chip & AHC_CHIPID_MASK) >= AHC_AIC7870)
    864 		ramps = (devconfig & RAMPSM) != 0;
    865 	else
    866 		ramps = 0;
    867 
    868 	if (ramps && single_user)
    869 		return (1);
    870 	return (0);
    871 }
    872 
    873 /*
    874  * Enable external scbram.
    875  */
    876 static void
    877 ahc_ext_scbram_config(struct ahc_softc *ahc, int enable, int pcheck, int fast)
    878 {
    879 	pcireg_t devconfig;
    880 	struct ahc_pci_busdata *bd = ahc->bus_data;
    881 
    882 	if (ahc->features & AHC_MULTI_FUNC) {
    883 		/*
    884 		 * Set the SCB Base addr (highest address bit)
    885 		 * depending on which channel we are.
    886 		 */
    887 		ahc_outb(ahc, SCBBADDR, (u_int8_t)bd->func);
    888 	}
    889 
    890 	devconfig = pci_conf_read(bd->pc, bd->tag, DEVCONFIG);
    891 	if ((ahc->features & AHC_ULTRA2) != 0) {
    892 		u_int dscommand0;
    893 
    894 		dscommand0 = ahc_inb(ahc, DSCOMMAND0);
    895 		if (enable)
    896 			dscommand0 &= ~INTSCBRAMSEL;
    897 		else
    898 			dscommand0 |= INTSCBRAMSEL;
    899 		ahc_outb(ahc, DSCOMMAND0, dscommand0);
    900 	} else {
    901 		if (fast)
    902 			devconfig &= ~EXTSCBTIME;
    903 		else
    904 			devconfig |= EXTSCBTIME;
    905 		if (enable)
    906 			devconfig &= ~SCBRAMSEL;
    907 		else
    908 			devconfig |= SCBRAMSEL;
    909 	}
    910 	if (pcheck)
    911 		devconfig |= EXTSCBPEN;
    912 	else
    913 		devconfig &= ~EXTSCBPEN;
    914 
    915 	pci_conf_write(bd->pc, bd->tag, DEVCONFIG, devconfig);
    916 }
    917 
    918 /*
    919  * Take a look to see if we have external SRAM.
    920  * We currently do not attempt to use SRAM that is
    921  * shared among multiple controllers.
    922  */
    923 static void
    924 ahc_probe_ext_scbram(struct ahc_softc *ahc)
    925 {
    926 	int num_scbs;
    927 	int test_num_scbs;
    928 	int enable;
    929 	int pcheck;
    930 	int fast;
    931 
    932 	if (ahc_ext_scbram_present(ahc) == 0)
    933 		return;
    934 
    935 	/*
    936 	 * Probe for the best parameters to use.
    937 	 */
    938 	enable = FALSE;
    939 	pcheck = FALSE;
    940 	fast = FALSE;
    941 	ahc_ext_scbram_config(ahc, /*enable*/TRUE, pcheck, fast);
    942 	num_scbs = ahc_probe_scbs(ahc);
    943 	if (num_scbs == 0) {
    944 		/* The SRAM wasn't really present. */
    945 		goto done;
    946 	}
    947 	enable = TRUE;
    948 
    949 	/*
    950 	 * Clear any outstanding parity error
    951 	 * and ensure that parity error reporting
    952 	 * is enabled.
    953 	 */
    954 	ahc_outb(ahc, SEQCTL, 0);
    955 	ahc_outb(ahc, CLRINT, CLRPARERR);
    956 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
    957 
    958 	/* Now see if we can do parity */
    959 	ahc_ext_scbram_config(ahc, enable, /*pcheck*/TRUE, fast);
    960 	num_scbs = ahc_probe_scbs(ahc);
    961 	if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
    962 	 || (ahc_inb(ahc, ERROR) & MPARERR) == 0)
    963 		pcheck = TRUE;
    964 
    965 	/* Clear any resulting parity error */
    966 	ahc_outb(ahc, CLRINT, CLRPARERR);
    967 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
    968 
    969 	/* Now see if we can do fast timing */
    970 	ahc_ext_scbram_config(ahc, enable, pcheck, /*fast*/TRUE);
    971 	test_num_scbs = ahc_probe_scbs(ahc);
    972 	if (test_num_scbs == num_scbs
    973 	 && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
    974 	  || (ahc_inb(ahc, ERROR) & MPARERR) == 0))
    975 		fast = TRUE;
    976 
    977 done:
    978 	/*
    979 	 * Disable parity error reporting until we
    980 	 * can load instruction ram.
    981 	 */
    982 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
    983 	/* Clear any latched parity error */
    984 	ahc_outb(ahc, CLRINT, CLRPARERR);
    985 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
    986 	if (bootverbose && enable) {
    987 		printf("%s: External SRAM, %s access%s\n",
    988 		       ahc_name(ahc), fast ? "fast" : "slow",
    989 		       pcheck ? ", parity checking enabled" : "");
    990 
    991 	}
    992 	ahc_ext_scbram_config(ahc, enable, pcheck, fast);
    993 }
    994 
    995 #define	DPE	PCI_STATUS_PARITY_DETECT
    996 #define SSE	PCI_STATUS_SPECIAL_ERROR
    997 #define	RMA	PCI_STATUS_MASTER_ABORT
    998 #define	RTA	PCI_STATUS_MASTER_TARGET_ABORT
    999 #define STA	PCI_STATUS_TARGET_TARGET_ABORT
   1000 #define DPR	PCI_STATUS_PARITY_ERROR
   1001 
   1002 int
   1003 ahc_pci_intr(struct ahc_softc *ahc)
   1004 {
   1005 	pcireg_t status1;
   1006 	struct ahc_pci_busdata *bd = ahc->bus_data;
   1007 
   1008 	if ((ahc_inb(ahc, ERROR) & PCIERRSTAT) == 0)
   1009 		return 0;
   1010 
   1011 	status1 = pci_conf_read(bd->pc, bd->tag, PCI_COMMAND_STATUS_REG);
   1012 
   1013 	if (status1 & DPE) {
   1014 		printf("%s: Data Parity Error Detected during address "
   1015 		       "or write data phase\n", ahc_name(ahc));
   1016 	}
   1017 	if (status1 & SSE) {
   1018 		printf("%s: Signal System Error Detected\n", ahc_name(ahc));
   1019 	}
   1020 	if (status1 & RMA) {
   1021 		printf("%s: Received a Master Abort\n", ahc_name(ahc));
   1022 	}
   1023 	if (status1 & RTA) {
   1024 		printf("%s: Received a Target Abort\n", ahc_name(ahc));
   1025 	}
   1026 	if (status1 & STA) {
   1027 		printf("%s: Signaled a Target Abort\n", ahc_name(ahc));
   1028 	}
   1029 	if (status1 & DPR) {
   1030 		printf("%s: Data Parity Error has been reported via PERR#\n",
   1031 		       ahc_name(ahc));
   1032 	}
   1033 	if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
   1034 		printf("%s: Latched PCIERR interrupt with "
   1035 		       "no status bits set\n", ahc_name(ahc));
   1036 	}
   1037 	pci_conf_write(bd->pc, bd->tag, PCI_COMMAND_STATUS_REG, status1);
   1038 
   1039 	if (status1 & (DPR|RMA|RTA)) {
   1040 		ahc_outb(ahc, CLRINT, CLRPARERR);
   1041 	}
   1042 
   1043 	return 1;
   1044 }
   1045 
   1046 static int
   1047 ahc_aic7850_setup(struct pci_attach_args *pa, char *channel,
   1048 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1049 {
   1050 	*channel = 'A';
   1051 	*chip = AHC_AIC7850;
   1052 	*features = AHC_AIC7850_FE;
   1053 	return (0);
   1054 }
   1055 
   1056 static int
   1057 ahc_aic7855_setup(struct pci_attach_args *pa, char *channel,
   1058 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1059 {
   1060 	*channel = 'A';
   1061 	*chip = AHC_AIC7855;
   1062 	*features = AHC_AIC7855_FE;
   1063 	return (0);
   1064 }
   1065 
   1066 static int
   1067 ahc_aic7859_setup(struct pci_attach_args *pa, char *channel,
   1068 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1069 {
   1070 	*channel = 'A';
   1071 	*chip = AHC_AIC7859;
   1072 	*features = AHC_AIC7859_FE;
   1073 	return (0);
   1074 }
   1075 
   1076 static int
   1077 ahc_aic7860_setup(struct pci_attach_args *pa, char *channel,
   1078 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1079 {
   1080 	*channel = 'A';
   1081 	*chip = AHC_AIC7860;
   1082 	*features = AHC_AIC7860_FE;
   1083 	return (0);
   1084 }
   1085 
   1086 static int
   1087 ahc_aic7870_setup(struct pci_attach_args *pa, char *channel,
   1088 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1089 {
   1090 	*channel = 'A';
   1091 	*chip = AHC_AIC7870;
   1092 	*features = AHC_AIC7870_FE;
   1093 	return (0);
   1094 }
   1095 
   1096 static int
   1097 ahc_aha394X_setup(struct pci_attach_args *pa, char *channel,
   1098 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1099 {
   1100 	int error;
   1101 
   1102 	error = ahc_aic7870_setup(pa, channel, chip, features, flags);
   1103 	if (error == 0)
   1104 		error = ahc_aha394XX_setup(pa, channel, chip, features, flags);
   1105 	return (error);
   1106 }
   1107 
   1108 static int
   1109 ahc_aha398X_setup(struct pci_attach_args *pa, char *channel,
   1110 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1111 {
   1112 	int error;
   1113 
   1114 	error = ahc_aic7870_setup(pa, channel, chip, features, flags);
   1115 	if (error == 0)
   1116 		error = ahc_aha398XX_setup(pa, channel, chip, features, flags);
   1117 	return (error);
   1118 }
   1119 
   1120 static int
   1121 ahc_aic7880_setup(struct pci_attach_args *pa, char *channel,
   1122 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1123 {
   1124 	*channel = 'A';
   1125 	*chip = AHC_AIC7880;
   1126 	*features = AHC_AIC7880_FE;
   1127 	return (0);
   1128 }
   1129 
   1130 static int
   1131 ahc_2940Pro_setup(struct pci_attach_args *pa, char *channel,
   1132 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1133 {
   1134 	int error;
   1135 
   1136 	*flags |= AHC_INT50_SPEEDFLEX;
   1137 	error = ahc_aic7880_setup(pa, channel, chip, features, flags);
   1138 	return (0);
   1139 }
   1140 
   1141 static int
   1142 ahc_aha394XU_setup(struct pci_attach_args *pa, char *channel,
   1143 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1144 {
   1145 	int error;
   1146 
   1147 	error = ahc_aic7880_setup(pa, channel, chip, features, flags);
   1148 	if (error == 0)
   1149 		error = ahc_aha394XX_setup(pa, channel, chip, features, flags);
   1150 	return (error);
   1151 }
   1152 
   1153 static int
   1154 ahc_aha398XU_setup(struct pci_attach_args *pa, char *channel,
   1155 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1156 {
   1157 	int error;
   1158 
   1159 	error = ahc_aic7880_setup(pa, channel, chip, features, flags);
   1160 	if (error == 0)
   1161 		error = ahc_aha398XX_setup(pa, channel, chip, features, flags);
   1162 	return (error);
   1163 }
   1164 
   1165 static int
   1166 ahc_aic7890_setup(struct pci_attach_args *pa, char *channel,
   1167 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1168 {
   1169 	*channel = 'A';
   1170 	*chip = AHC_AIC7890;
   1171 	*features = AHC_AIC7890_FE;
   1172 	*flags |= AHC_NEWEEPROM_FMT;
   1173 	return (0);
   1174 }
   1175 
   1176 static int
   1177 ahc_aic7892_setup(struct pci_attach_args *pa, char *channel,
   1178 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1179 {
   1180 	*channel = 'A';
   1181 	*chip = AHC_AIC7892;
   1182 	*features = AHC_AIC7892_FE;
   1183 	*flags |= AHC_NEWEEPROM_FMT;
   1184 	return (0);
   1185 }
   1186 
   1187 static int
   1188 ahc_aic7895_setup(struct pci_attach_args *pa, char *channel,
   1189 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1190 {
   1191 	pcireg_t devconfig;
   1192 
   1193 	*channel = pa->pa_function == 1 ? 'B' : 'A';
   1194 	*chip = AHC_AIC7895;
   1195 	/* The 'C' revision of the aic7895 has a few additional features */
   1196 	if (PCI_REVISION(pa->pa_class) >= 4)
   1197 		*features = AHC_AIC7895C_FE;
   1198 	else
   1199 		*features = AHC_AIC7895_FE;
   1200 	*flags |= AHC_NEWEEPROM_FMT;
   1201 	devconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
   1202 	devconfig &= ~SCBSIZE32;
   1203 	pci_conf_write(pa->pa_pc, pa->pa_tag, DEVCONFIG, devconfig);
   1204 	return (0);
   1205 }
   1206 
   1207 static int
   1208 ahc_aic7896_setup(struct pci_attach_args *pa, char *channel,
   1209 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1210 {
   1211 	*channel = pa->pa_function == 1 ? 'B' : 'A';
   1212 	*chip = AHC_AIC7896;
   1213 	*features = AHC_AIC7896_FE;
   1214 	*flags |= AHC_NEWEEPROM_FMT;
   1215 	return (0);
   1216 }
   1217 
   1218 static int
   1219 ahc_aic7899_setup(struct pci_attach_args *pa, char *channel,
   1220 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1221 {
   1222 	*channel = pa->pa_function == 1 ? 'B' : 'A';
   1223 	*chip = AHC_AIC7899;
   1224 	*features = AHC_AIC7899_FE;
   1225 	*flags |= AHC_NEWEEPROM_FMT;
   1226 	return (0);
   1227 }
   1228 
   1229 static int
   1230 ahc_raid_setup(struct pci_attach_args *pa, char *channel,
   1231 	       ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1232 {
   1233 	printf(": RAID functionality unsupported\n");
   1234 	return (ENXIO);
   1235 }
   1236 
   1237 static int
   1238 ahc_aha394XX_setup(struct pci_attach_args *pa, char *channel,
   1239 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1240 {
   1241 	switch (pa->pa_device) {
   1242 	case AHC_394X_SLOT_CHANNEL_A:
   1243 		*channel = 'A';
   1244 		break;
   1245 	case AHC_394X_SLOT_CHANNEL_B:
   1246 		*channel = 'B';
   1247 		break;
   1248 	default:
   1249 		printf("adapter at unexpected slot %d\n"
   1250 		       "unable to map to a channel\n",
   1251 		       pa->pa_device);
   1252 		*channel = 'A';
   1253 	}
   1254 	return (0);
   1255 }
   1256 
   1257 static int
   1258 ahc_aha398XX_setup(struct pci_attach_args *pa, char *channel,
   1259 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1260 {
   1261 	switch (pa->pa_device) {
   1262 	case AHC_398X_SLOT_CHANNEL_A:
   1263 		*channel = 'A';
   1264 		break;
   1265 	case AHC_398X_SLOT_CHANNEL_B:
   1266 		*channel = 'B';
   1267 		break;
   1268 	case AHC_398X_SLOT_CHANNEL_C:
   1269 		*channel = 'C';
   1270 		break;
   1271 	default:
   1272 		printf("adapter at unexpected slot %d\n"
   1273 		       "unable to map to a channel\n",
   1274 		       pa->pa_device);
   1275 		*channel = 'A';
   1276 	}
   1277 	*flags |= AHC_LARGE_SEEPROM;
   1278 	return (0);
   1279 }
   1280