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ahc_pci.c revision 1.24
      1 /*	$NetBSD: ahc_pci.c,v 1.24 2000/05/10 17:07:52 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/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 
     45 #include <machine/bus.h>
     46 #include <machine/intr.h>
     47 
     48 #include <dev/pci/pcireg.h>
     49 #include <dev/pci/pcivar.h>
     50 
     51 /* XXXX some i386 on-board chips act weird when memory-mapped */
     52 #ifndef __i386__
     53 #define AHC_ALLOW_MEMIO
     54 #endif
     55 
     56 #define AHC_PCI_IOADDR	PCI_MAPREG_START	/* I/O Address */
     57 #define AHC_PCI_MEMADDR	(PCI_MAPREG_START + 4)	/* Mem I/O Address */
     58 
     59 #include <dev/scsipi/scsi_all.h>
     60 #include <dev/scsipi/scsipi_all.h>
     61 #include <dev/scsipi/scsiconf.h>
     62 
     63 #include <dev/ic/aic7xxxvar.h>
     64 #include <dev/ic/smc93cx6var.h>
     65 
     66 #include <dev/microcode/aic7xxx/aic7xxx_reg.h>
     67 
     68 #ifdef DEBUG
     69 #define bootverbose 1
     70 #else
     71 #define bootverbose 1
     72 #endif
     73 
     74 struct ahc_pci_busdata {
     75 	pci_chipset_tag_t pc;
     76 	pcitag_t tag;
     77 	u_int dev;
     78 	u_int func;
     79 };
     80 
     81 static __inline u_int64_t
     82 ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
     83 {
     84 	u_int64_t id;
     85 
     86 	id = subvendor
     87 	   | (subdevice << 16)
     88 	   | ((u_int64_t)vendor << 32)
     89 	   | ((u_int64_t)device << 48);
     90 
     91 	return (id);
     92 }
     93 
     94 #define ID_ALL_MASK		0xFFFFFFFFFFFFFFFFull
     95 #define ID_DEV_VENDOR_MASK	0xFFFFFFFF00000000ull
     96 #define ID_AIC7850		0x5078900400000000ull
     97 #define ID_AHA_2910_15_20_30C	0x5078900478509004ull
     98 #define ID_AIC7855		0x5578900400000000ull
     99 #define ID_AIC7859		0x3860900400000000ull
    100 #define ID_AHA_2930CU		0x3860900438699004ull
    101 #define ID_AIC7860		0x6078900400000000ull
    102 #define ID_AIC7860C		0x6078900478609004ull
    103 #define ID_AHA_2940AU_0		0x6178900400000000ull
    104 #define ID_AHA_2940AU_1		0x6178900478619004ull
    105 #define ID_AHA_2940AU_CN	0x2178900478219004ull
    106 #define ID_AHA_2930C_VAR	0x6038900438689004ull
    107 
    108 #define ID_AIC7870		0x7078900400000000ull
    109 #define ID_AHA_2940		0x7178900400000000ull
    110 #define ID_AHA_3940		0x7278900400000000ull
    111 #define ID_AHA_398X		0x7378900400000000ull
    112 #define ID_AHA_2944		0x7478900400000000ull
    113 #define ID_AHA_3944		0x7578900400000000ull
    114 
    115 #define ID_AIC7880		0x8078900400000000ull
    116 #define ID_AIC7880_B		0x8078900478809004ull
    117 #define ID_AHA_2940U		0x8178900400000000ull
    118 #define ID_AHA_3940U		0x8278900400000000ull
    119 #define ID_AHA_2944U		0x8478900400000000ull
    120 #define ID_AHA_3944U		0x8578900400000000ull
    121 #define ID_AHA_398XU		0x8378900400000000ull
    122 #define ID_AHA_4944U		0x8678900400000000ull
    123 #define ID_AHA_2940UB		0x8178900478819004ull
    124 #define ID_AHA_2930U		0x8878900478889004ull
    125 #define ID_AHA_2940U_PRO	0x8778900478879004ull
    126 #define ID_AHA_2940U_CN		0x0078900478009004ull
    127 
    128 #define ID_AIC7895		0x7895900478959004ull
    129 #define ID_AIC7895_RAID_PORT	0x7893900478939004ull
    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_AHA_2930U2		0x0011900501819005ull
    136 #define ID_AHA_2940U2B		0x00109005A1009005ull
    137 #define ID_AHA_2940U2_OEM	0x0010900521809005ull
    138 #define ID_AHA_2940U2		0x00109005A1809005ull
    139 #define ID_AHA_2950U2B		0x00109005E1009005ull
    140 
    141 #define ID_AIC7892		0x008F9005FFFF9005ull
    142 #define ID_AHA_29160		0x00809005E2A09005ull
    143 #define ID_AHA_29160_CPQ	0x00809005E2A00E11ull
    144 #define ID_AHA_29160N		0x0080900562A09005ull
    145 #define ID_AHA_29160B		0x00809005E2209005ull
    146 #define ID_AHA_19160B		0x0081900562A19005ull
    147 
    148 #define ID_AIC7896		0x005F9005FFFF9005ull
    149 #define ID_AHA_3950U2B_0	0x00509005FFFF9005ull
    150 #define ID_AHA_3950U2B_1	0x00509005F5009005ull
    151 #define ID_AHA_3950U2D_0	0x00519005FFFF9005ull
    152 #define ID_AHA_3950U2D_1	0x00519005B5009005ull
    153 
    154 #define ID_AIC7899		0x00CF9005FFFF9005ull
    155 #define ID_AHA_3960D		0x00C09005F6209005ull /* AKA AHA-39160 */
    156 #define ID_AHA_3960D_CPQ	0x00C09005F6200E11ull
    157 
    158 #define ID_AIC7810		0x1078900400000000ull
    159 #define ID_AIC7815		0x1578900400000000ull
    160 
    161 typedef int (ahc_device_setup_t)(struct pci_attach_args *, char *,
    162 				 ahc_chip *, ahc_feature *, ahc_flag *);
    163 
    164 static ahc_device_setup_t ahc_aic7850_setup;
    165 static ahc_device_setup_t ahc_aic7855_setup;
    166 static ahc_device_setup_t ahc_aic7859_setup;
    167 static ahc_device_setup_t ahc_aic7860_setup;
    168 static ahc_device_setup_t ahc_aic7870_setup;
    169 static ahc_device_setup_t ahc_aha394X_setup;
    170 static ahc_device_setup_t ahc_aha398X_setup;
    171 static ahc_device_setup_t ahc_aic7880_setup;
    172 static ahc_device_setup_t ahc_2940Pro_setup;
    173 static ahc_device_setup_t ahc_aha394XU_setup;
    174 static ahc_device_setup_t ahc_aha398XU_setup;
    175 static ahc_device_setup_t ahc_aic7890_setup;
    176 static ahc_device_setup_t ahc_aic7892_setup;
    177 static ahc_device_setup_t ahc_aic7895_setup;
    178 static ahc_device_setup_t ahc_aic7896_setup;
    179 static ahc_device_setup_t ahc_aic7899_setup;
    180 static ahc_device_setup_t ahc_raid_setup;
    181 static ahc_device_setup_t ahc_aha394XX_setup;
    182 static ahc_device_setup_t ahc_aha398XX_setup;
    183 
    184 struct ahc_pci_identity {
    185 	u_int64_t		 full_id;
    186 	u_int64_t		 id_mask;
    187 	char			*name;
    188 	ahc_device_setup_t	*setup;
    189 };
    190 
    191 struct ahc_pci_identity ahc_pci_ident_table [] =
    192 {
    193 	/* aic7850 based controllers */
    194 	{
    195 		ID_AHA_2910_15_20_30C,
    196 		ID_ALL_MASK,
    197 		"Adaptec 2910/15/20/30C SCSI adapter",
    198 		ahc_aic7850_setup
    199 	},
    200 	/* aic7859 based controllers */
    201 	{
    202 		ID_AHA_2930CU,
    203 		ID_ALL_MASK,
    204 		"Adaptec 2930CU SCSI adapter",
    205 		ahc_aic7859_setup
    206 	},
    207 	/* aic7860 based controllers */
    208 	{
    209 		ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
    210 		ID_DEV_VENDOR_MASK,
    211 		"Adaptec 2940A Ultra SCSI adapter",
    212 		ahc_aic7860_setup
    213 	},
    214 	{
    215 		ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
    216 		ID_DEV_VENDOR_MASK,
    217 		"Adaptec 2940A/CN Ultra SCSI adapter",
    218 		ahc_aic7860_setup
    219 	},
    220 	{
    221 		ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
    222 		ID_DEV_VENDOR_MASK,
    223 		"Adaptec 2930C SCSI adapter (VAR)",
    224 		ahc_aic7860_setup
    225 	},
    226 	/* aic7870 based controllers */
    227 	{
    228 		ID_AHA_2940,
    229 		ID_ALL_MASK,
    230 		"Adaptec 2940 SCSI adapter",
    231 		ahc_aic7870_setup
    232 	},
    233 	{
    234 		ID_AHA_3940,
    235 		ID_ALL_MASK,
    236 		"Adaptec 3940 SCSI adapter",
    237 		ahc_aha394X_setup
    238 	},
    239 	{
    240 		ID_AHA_398X,
    241 		ID_ALL_MASK,
    242 		"Adaptec 398X SCSI RAID adapter",
    243 		ahc_aha398X_setup
    244 	},
    245 	{
    246 		ID_AHA_2944,
    247 		ID_ALL_MASK,
    248 		"Adaptec 2944 SCSI adapter",
    249 		ahc_aic7870_setup
    250 	},
    251 	{
    252 		ID_AHA_3944,
    253 		ID_ALL_MASK,
    254 		"Adaptec 3944 SCSI adapter",
    255 		ahc_aha394X_setup
    256 	},
    257 	/* aic7880 based controllers */
    258 	{
    259 		ID_AHA_2940U & ID_DEV_VENDOR_MASK,
    260 		ID_DEV_VENDOR_MASK,
    261 		"Adaptec 2940 Ultra SCSI adapter",
    262 		ahc_aic7880_setup
    263 	},
    264 	{
    265 		ID_AHA_3940U & ID_DEV_VENDOR_MASK,
    266 		ID_DEV_VENDOR_MASK,
    267 		"Adaptec 3940 Ultra SCSI adapter",
    268 		ahc_aha394XU_setup
    269 	},
    270 	{
    271 		ID_AHA_2944U & ID_DEV_VENDOR_MASK,
    272 		ID_DEV_VENDOR_MASK,
    273 		"Adaptec 2944 Ultra SCSI adapter",
    274 		ahc_aic7880_setup
    275 	},
    276 	{
    277 		ID_AHA_3944U & ID_DEV_VENDOR_MASK,
    278 		ID_DEV_VENDOR_MASK,
    279 		"Adaptec 3944 Ultra SCSI adapter",
    280 		ahc_aha394XU_setup
    281 	},
    282 	{
    283 		ID_AHA_398XU & ID_DEV_VENDOR_MASK,
    284 		ID_DEV_VENDOR_MASK,
    285 		"Adaptec 398X Ultra SCSI RAID adapter",
    286 		ahc_aha398XU_setup
    287 	},
    288 	{
    289 		/*
    290 		 * XXX Don't know the slot numbers
    291 		 * so we can't identify channels
    292 		 */
    293 		ID_AHA_4944U & ID_DEV_VENDOR_MASK,
    294 		ID_DEV_VENDOR_MASK,
    295 		"Adaptec 4944 Ultra SCSI adapter",
    296 		ahc_aic7880_setup
    297 	},
    298 	{
    299 		ID_AHA_2930U & ID_DEV_VENDOR_MASK,
    300 		ID_DEV_VENDOR_MASK,
    301 		"Adaptec 2930 Ultra SCSI adapter",
    302 		ahc_aic7880_setup
    303 	},
    304 	{
    305 		ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
    306 		ID_DEV_VENDOR_MASK,
    307 		"Adaptec 2940 Pro Ultra SCSI adapter",
    308 		ahc_2940Pro_setup
    309 	},
    310 	{
    311 		ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
    312 		ID_DEV_VENDOR_MASK,
    313 		"Adaptec 2940/CN Ultra SCSI adapter",
    314 		ahc_aic7880_setup
    315 	},
    316 	/* aic7890 based controllers */
    317 	{
    318 		ID_AHA_2930U2,
    319 		ID_ALL_MASK,
    320 		"Adaptec 2930 Ultra2 SCSI adapter",
    321 		ahc_aic7890_setup
    322 	},
    323 	{
    324 		ID_AHA_2940U2B,
    325 		ID_ALL_MASK,
    326 		"Adaptec 2940B Ultra2 SCSI adapter",
    327 		ahc_aic7890_setup
    328 	},
    329 	{
    330 		ID_AHA_2940U2_OEM,
    331 		ID_ALL_MASK,
    332 		"Adaptec 2940 Ultra2 SCSI adapter (OEM)",
    333 		ahc_aic7890_setup
    334 	},
    335 	{
    336 		ID_AHA_2940U2,
    337 		ID_ALL_MASK,
    338 		"Adaptec 2940 Ultra2 SCSI adapter",
    339 		ahc_aic7890_setup
    340 	},
    341 	{
    342 		ID_AHA_2950U2B,
    343 		ID_ALL_MASK,
    344 		"Adaptec 2950 Ultra2 SCSI adapter",
    345 		ahc_aic7890_setup
    346 	},
    347 	/* aic7892 based controllers */
    348 	{
    349 		ID_AHA_29160,
    350 		ID_ALL_MASK,
    351 		"Adaptec 29160 Ultra160 SCSI adapter",
    352 		ahc_aic7892_setup
    353 	},
    354 	{
    355 		ID_AHA_29160_CPQ,
    356 		ID_ALL_MASK,
    357 		"Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
    358 		ahc_aic7892_setup
    359 	},
    360 	{
    361 		ID_AHA_29160N,
    362 		ID_ALL_MASK,
    363 		"Adaptec 29160N Ultra160 SCSI adapter",
    364 		ahc_aic7892_setup
    365 	},
    366 	{
    367 		ID_AHA_29160B,
    368 		ID_ALL_MASK,
    369 		"Adaptec 29160B Ultra160 SCSI adapter",
    370 		ahc_aic7892_setup
    371 	},
    372 	{
    373 		ID_AHA_19160B,
    374 		ID_ALL_MASK,
    375 		"Adaptec 19160B Ultra160 SCSI adapter",
    376 		ahc_aic7892_setup
    377 	},
    378 	/* aic7895 based controllers */
    379 	{
    380 		ID_AHA_2940U_DUAL,
    381 		ID_ALL_MASK,
    382 		"Adaptec 2940/DUAL Ultra SCSI adapter",
    383 		ahc_aic7895_setup
    384 	},
    385 	{
    386 		ID_AHA_3940AU,
    387 		ID_ALL_MASK,
    388 		"Adaptec 3940A Ultra SCSI adapter",
    389 		ahc_aic7895_setup
    390 	},
    391 	{
    392 		ID_AHA_3944AU,
    393 		ID_ALL_MASK,
    394 		"Adaptec 3944A Ultra SCSI adapter",
    395 		ahc_aic7895_setup
    396 	},
    397 	/* aic7896/97 based controllers */
    398 	{
    399 		ID_AHA_3950U2B_0,
    400 		ID_ALL_MASK,
    401 		"Adaptec 3950B Ultra2 SCSI adapter",
    402 		ahc_aic7896_setup
    403 	},
    404 	{
    405 		ID_AHA_3950U2B_1,
    406 		ID_ALL_MASK,
    407 		"Adaptec 3950B Ultra2 SCSI adapter",
    408 		ahc_aic7896_setup
    409 	},
    410 	{
    411 		ID_AHA_3950U2D_0,
    412 		ID_ALL_MASK,
    413 		"Adaptec 3950D Ultra2 SCSI adapter",
    414 		ahc_aic7896_setup
    415 	},
    416 	{
    417 		ID_AHA_3950U2D_1,
    418 		ID_ALL_MASK,
    419 		"Adaptec 3950D Ultra2 SCSI adapter",
    420 		ahc_aic7896_setup
    421 	},
    422 	/* aic7899 based controllers */
    423 	{
    424 		ID_AHA_3960D,
    425 		ID_ALL_MASK,
    426 		"Adaptec 3960D Ultra160 SCSI adapter",
    427 		ahc_aic7899_setup
    428 	},
    429 	{
    430 		ID_AHA_3960D_CPQ,
    431 		ID_ALL_MASK,
    432 		"Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
    433 		ahc_aic7899_setup
    434 	},
    435 	/* Generic chip probes for devices we don't know 'exactly' */
    436 	{
    437 		ID_AIC7850 & ID_DEV_VENDOR_MASK,
    438 		ID_DEV_VENDOR_MASK,
    439 		"Adaptec aic7850 SCSI adapter",
    440 		ahc_aic7850_setup
    441 	},
    442 	{
    443 		ID_AIC7855 & ID_DEV_VENDOR_MASK,
    444 		ID_DEV_VENDOR_MASK,
    445 		"Adaptec aic7855 SCSI adapter",
    446 		ahc_aic7855_setup
    447 	},
    448 	{
    449 		ID_AIC7859 & ID_DEV_VENDOR_MASK,
    450 		ID_DEV_VENDOR_MASK,
    451 		"Adaptec aic7859 SCSI adapter",
    452 		ahc_aic7859_setup
    453 	},
    454 	{
    455 		ID_AIC7860 & ID_DEV_VENDOR_MASK,
    456 		ID_DEV_VENDOR_MASK,
    457 		"Adaptec aic7860 SCSI adapter",
    458 		ahc_aic7860_setup
    459 	},
    460 	{
    461 		ID_AIC7870 & ID_DEV_VENDOR_MASK,
    462 		ID_DEV_VENDOR_MASK,
    463 		"Adaptec aic7870 SCSI adapter",
    464 		ahc_aic7870_setup
    465 	},
    466 	{
    467 		ID_AIC7880 & ID_DEV_VENDOR_MASK,
    468 		ID_DEV_VENDOR_MASK,
    469 		"Adaptec aic7880 Ultra SCSI adapter",
    470 		ahc_aic7880_setup
    471 	},
    472 	{
    473 		ID_AIC7890 & ID_DEV_VENDOR_MASK,
    474 		ID_DEV_VENDOR_MASK,
    475 		"Adaptec aic7890/91 Ultra2 SCSI adapter",
    476 		ahc_aic7890_setup
    477 	},
    478 	{
    479 		ID_AIC7892 & ID_DEV_VENDOR_MASK,
    480 		ID_DEV_VENDOR_MASK,
    481 		"Adaptec aic7892 Ultra160 SCSI adapter",
    482 		ahc_aic7892_setup
    483 	},
    484 	{
    485 		ID_AIC7895 & ID_DEV_VENDOR_MASK,
    486 		ID_DEV_VENDOR_MASK,
    487 		"Adaptec aic7895 Ultra SCSI adapter",
    488 		ahc_aic7895_setup
    489 	},
    490 	{
    491 		ID_AIC7895_RAID_PORT & ID_DEV_VENDOR_MASK,
    492 		ID_DEV_VENDOR_MASK,
    493 		"Adaptec aic7895 Ultra SCSI adapter (RAID PORT)",
    494 		ahc_aic7895_setup
    495 	},
    496 	{
    497 		ID_AIC7896 & ID_DEV_VENDOR_MASK,
    498 		ID_DEV_VENDOR_MASK,
    499 		"Adaptec aic7896/97 Ultra2 SCSI adapter",
    500 		ahc_aic7896_setup
    501 	},
    502 	{
    503 		ID_AIC7899 & ID_DEV_VENDOR_MASK,
    504 		ID_DEV_VENDOR_MASK,
    505 		"Adaptec aic7899 Ultra160 SCSI adapter",
    506 		ahc_aic7899_setup
    507 	},
    508 	{
    509 		ID_AIC7810 & ID_DEV_VENDOR_MASK,
    510 		ID_DEV_VENDOR_MASK,
    511 		"Adaptec aic7810 RAID memory controller",
    512 		ahc_raid_setup
    513 	},
    514 	{
    515 		ID_AIC7815 & ID_DEV_VENDOR_MASK,
    516 		ID_DEV_VENDOR_MASK,
    517 		"Adaptec aic7815 RAID memory controller",
    518 		ahc_raid_setup
    519 	}
    520 };
    521 
    522 static const int ahc_num_pci_devs =
    523 	sizeof(ahc_pci_ident_table) / sizeof(*ahc_pci_ident_table);
    524 
    525 #define AHC_394X_SLOT_CHANNEL_A	4
    526 #define AHC_394X_SLOT_CHANNEL_B	5
    527 
    528 #define AHC_398X_SLOT_CHANNEL_A	4
    529 #define AHC_398X_SLOT_CHANNEL_B	8
    530 #define AHC_398X_SLOT_CHANNEL_C	12
    531 
    532 #define	DEVCONFIG		0x40
    533 #define		SCBSIZE32	0x00010000	/* aic789X only */
    534 #define		MPORTMODE	0x00000400	/* aic7870 only */
    535 #define		RAMPSM		0x00000200	/* aic7870 only */
    536 #define		VOLSENSE	0x00000100
    537 #define		SCBRAMSEL	0x00000080
    538 #define		MRDCEN		0x00000040
    539 #define		EXTSCBTIME	0x00000020	/* aic7870 only */
    540 #define		EXTSCBPEN	0x00000010	/* aic7870 only */
    541 #define		BERREN		0x00000008
    542 #define		DACEN		0x00000004
    543 #define		STPWLEVEL	0x00000002
    544 #define		DIFACTNEGEN	0x00000001	/* aic7870 only */
    545 
    546 #define	CSIZE_LATTIME		0x0c
    547 #define		CACHESIZE	0x0000003f	/* only 5 bits */
    548 #define		LATTIME		0x0000ff00
    549 
    550 static struct ahc_pci_identity *ahc_find_pci_device(pcireg_t, pcireg_t);
    551 static int ahc_ext_scbram_present(struct ahc_softc *ahc);
    552 static void ahc_ext_scbram_config(struct ahc_softc *ahc, int enable,
    553 				  int pcheck, int fast);
    554 static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
    555 
    556 int ahc_pci_probe __P((struct device *, struct cfdata *, void *));
    557 void ahc_pci_attach __P((struct device *, struct device *, void *));
    558 
    559 /* Exported for use in the ahc_intr routine */
    560 int ahc_pci_intr(struct ahc_softc *ahc);
    561 
    562 struct cfattach ahc_pci_ca = {
    563         sizeof(struct ahc_softc), ahc_pci_probe, ahc_pci_attach
    564 };
    565 
    566 static struct ahc_pci_identity *
    567 ahc_find_pci_device(id, subid)
    568 	pcireg_t id, subid;
    569 {
    570 	u_int64_t  full_id;
    571 	struct	   ahc_pci_identity *entry;
    572 	u_int	   i;
    573 
    574 	full_id = ahc_compose_id(PCI_PRODUCT(id), PCI_VENDOR(id),
    575 				 PCI_PRODUCT(subid), PCI_VENDOR(subid));
    576 
    577 	for (i = 0; i < ahc_num_pci_devs; i++) {
    578 		entry = &ahc_pci_ident_table[i];
    579 		if (entry->full_id == (full_id & entry->id_mask))
    580 			return (entry);
    581 	}
    582 	return (NULL);
    583 }
    584 
    585 int
    586 ahc_pci_probe(parent, match, aux)
    587 	struct device *parent;
    588 	struct cfdata *match;
    589 	void *aux;
    590 {
    591 	struct pci_attach_args *pa = aux;
    592 	struct	   ahc_pci_identity *entry;
    593 	pcireg_t   subid;
    594 
    595 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
    596 	entry = ahc_find_pci_device(pa->pa_id, subid);
    597 	return entry != NULL ? 1 : 0;
    598 }
    599 
    600 void
    601 ahc_pci_attach(parent, self, aux)
    602 	struct device *parent, *self;
    603 	void *aux;
    604 {
    605 	struct pci_attach_args *pa = aux;
    606 	struct		   ahc_pci_identity *entry;
    607 	struct		   ahc_softc *ahc = (void *)self;
    608 	pcireg_t	   command;
    609 	ahc_chip	   ahc_t = AHC_NONE;
    610 	ahc_feature	   ahc_fe = AHC_FENONE;
    611 	ahc_flag	   ahc_f = AHC_FNONE;
    612 	u_int		   our_id = 0;
    613 	u_int		   sxfrctl1;
    614 	u_int		   scsiseq;
    615 	int		   error;
    616 	char		   channel;
    617 	pcireg_t	   subid;
    618 	int		   ioh_valid, memh_valid;
    619 	bus_space_tag_t st, iot;
    620 	bus_space_handle_t sh, ioh;
    621 #ifdef AHC_ALLOW_MEMIO
    622 	bus_space_tag_t memt;
    623 	bus_space_handle_t memh;
    624 	pcireg_t memtype;
    625 #endif
    626 	pci_intr_handle_t ih;
    627 	const char *intrstr;
    628 	struct ahc_pci_busdata *bd;
    629 
    630 	command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    631 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
    632 	entry = ahc_find_pci_device(pa->pa_id, subid);
    633 	if (entry == NULL)
    634 		return;
    635 	error = entry->setup(pa, &channel, &ahc_t, &ahc_fe, &ahc_f);
    636 	if (error != 0)
    637 		return;
    638 
    639 	ioh_valid = memh_valid = 0;
    640 
    641 #ifdef AHC_ALLOW_MEMIO
    642 	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, AHC_PCI_MEMADDR);
    643 	switch (memtype) {
    644 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
    645 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
    646 		memh_valid = (pci_mapreg_map(pa, AHC_PCI_MEMADDR,
    647 		    memtype, 0, &memt, &memh, NULL, NULL) == 0);
    648 		break;
    649 	default:
    650 		memh_valid = 0;
    651 	}
    652 #endif
    653 	ioh_valid = (pci_mapreg_map(pa, AHC_PCI_IOADDR,
    654 	    PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, NULL) == 0);
    655 
    656 	if (ioh_valid) {
    657 		st = iot;
    658 		sh = ioh;
    659 #ifdef AHC_ALLOW_MEMIO
    660 	} else if (memh_valid) {
    661 		st = memt;
    662 		sh = memh;
    663 #endif
    664 	} else {
    665 		printf(": unable to map registers\n");
    666 		return;
    667 	}
    668 
    669 	printf("\n");
    670 
    671 
    672 	/* Ensure busmastering is enabled */
    673 	command |= PCI_COMMAND_MASTER_ENABLE;;
    674 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    675 
    676 	/* On all PCI adapters, we allow SCB paging */
    677 	ahc_f |= AHC_PAGESCBS;
    678 	if (ahc_alloc(ahc, sh, st, pa->pa_dmat,
    679 	    ahc_t|AHC_PCI, ahc_fe, ahc_f) < 0)
    680 		return;
    681 
    682 	bd = malloc(sizeof (struct ahc_pci_busdata), M_DEVBUF, M_NOWAIT);
    683 	if (bd == NULL) {
    684 		printf(": unable to allocate bus-specific data\n");
    685 		return;
    686 	}
    687 
    688 	bd->pc = pa->pa_pc;
    689 	bd->tag = pa->pa_tag;
    690 	bd->func = pa->pa_function;
    691 	bd->dev = pa->pa_device;
    692 
    693 	ahc->bus_data = bd;
    694 	ahc->bus_intr = ahc_pci_intr;
    695 	ahc->channel = channel;
    696 
    697 	/* Remeber how the card was setup in case there is no SEEPROM */
    698 	ahc_outb(ahc, HCNTRL, ahc->pause);
    699 	if ((ahc->features & AHC_ULTRA2) != 0)
    700 		our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
    701 	else
    702 		our_id = ahc_inb(ahc, SCSIID) & OID;
    703 	sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
    704 	scsiseq = ahc_inb(ahc, SCSISEQ);
    705 
    706 	if (ahc_reset(ahc) != 0) {
    707 		/* Failed */
    708 		ahc_free(ahc);
    709 		return;
    710 	}
    711 
    712 	if ((ahc->features & AHC_DT) != 0) {
    713 		u_int optionmode;
    714 		u_int sfunct;
    715 
    716 		/* Perform ALT-Mode Setup */
    717 		sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
    718 		ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
    719 		optionmode = ahc_inb(ahc, OPTIONMODE);
    720 		printf("OptionMode = %x\n", optionmode);
    721 		ahc_outb(ahc, OPTIONMODE, OPTIONMODE_DEFAULTS);
    722 		/* Send CRC info in target mode every 4K */
    723 		ahc_outb(ahc, TARGCRCCNT, 0);
    724 		ahc_outb(ahc, TARGCRCCNT + 1, 0x10);
    725 		ahc_outb(ahc, SFUNCT, sfunct);
    726 
    727 		/* Normal mode setup */
    728 		ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
    729 					  |TARGCRCENDEN|TARGCRCCNTEN);
    730 	}
    731 
    732 	if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
    733 			 pa->pa_intrline, &ih)) {
    734 		printf("%s: couldn't map interrupt\n", ahc->sc_dev.dv_xname);
    735 		ahc_free(ahc);
    736 		return;
    737 	}
    738 	intrstr = pci_intr_string(pa->pa_pc, ih);
    739 	ahc->ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, ahc_intr, ahc);
    740 	if (ahc->ih == NULL) {
    741 		printf("%s: couldn't establish interrupt",
    742 		       ahc->sc_dev.dv_xname);
    743 		if (intrstr != NULL)
    744 			printf(" at %s", intrstr);
    745 		printf("\n");
    746 		ahc_free(ahc);
    747 		return;
    748 	}
    749 	if (intrstr != NULL)
    750 		printf("%s: interrupting at %s\n", ahc->sc_dev.dv_xname,
    751 		       intrstr);
    752 
    753 	/*
    754 	 * Do aic7880/aic7870/aic7860/aic7850 specific initialization
    755 	 */
    756 	{
    757 		u_int8_t sblkctl;
    758 		u_int dscommand0;
    759 
    760 		dscommand0 = ahc_inb(ahc, DSCOMMAND0);
    761 		dscommand0 |= MPARCKEN;
    762 		if ((ahc->features & AHC_ULTRA2) != 0) {
    763 
    764 			/*
    765 			 * DPARCKEN doesn't work correctly on
    766 			 * some MBs so don't use it.
    767 			 */
    768 			dscommand0 &= ~(USCBSIZE32|DPARCKEN);
    769 			dscommand0 |= CACHETHEN;
    770 		}
    771 
    772 		ahc_outb(ahc, DSCOMMAND0, dscommand0);
    773 
    774 		/* See if we have an SEEPROM and perform auto-term */
    775 		check_extport(ahc, &sxfrctl1);
    776 
    777 		/*
    778 		 * Take the LED out of diagnostic mode
    779 		 */
    780 		sblkctl = ahc_inb(ahc, SBLKCTL);
    781 		ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
    782 
    783 		/*
    784 		 * I don't know where this is set in the SEEPROM or by the
    785 		 * BIOS, so we default to 100% on Ultra or slower controllers
    786 		 * and 75% on ULTRA2 controllers.
    787 		 */
    788 		if ((ahc->features & AHC_ULTRA2) != 0) {
    789 			ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_75|WR_DFTHRSH_75);
    790 		} else {
    791 			ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
    792 		}
    793 
    794 		if (ahc->flags & AHC_USEDEFAULTS) {
    795 			/*
    796 			 * PCI Adapter default setup
    797 			 * Should only be used if the adapter does not have
    798 			 * an SEEPROM.
    799 			 */
    800 			/* See if someone else set us up already */
    801 			if (scsiseq != 0) {
    802 				printf("%s: Using left over BIOS settings\n",
    803 					ahc_name(ahc));
    804 				ahc->flags &= ~AHC_USEDEFAULTS;
    805 			} else {
    806 				/*
    807 				 * Assume only one connector and always turn
    808 				 * on termination.
    809 				 */
    810  				our_id = 0x07;
    811 				sxfrctl1 = STPWEN;
    812 			}
    813 			ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
    814 
    815 			ahc->our_id = our_id;
    816 		}
    817 	}
    818 
    819 	/*
    820 	 * Take a look to see if we have external SRAM.
    821 	 * We currently do not attempt to use SRAM that is
    822 	 * shared among multiple controllers.
    823 	 */
    824 	ahc_probe_ext_scbram(ahc);
    825 
    826 
    827 	printf("%s: %s ", ahc_name(ahc),
    828 	       ahc_chip_names[ahc->chip & AHC_CHIPID_MASK]);
    829 
    830 	/*
    831 	 * Record our termination setting for the
    832 	 * generic initialization routine.
    833 	 */
    834 	if ((sxfrctl1 & STPWEN) != 0)
    835 		ahc->flags |= AHC_TERM_ENB_A;
    836 
    837 	if (ahc_init(ahc)) {
    838 		ahc_free(ahc);
    839 		return;
    840 	}
    841 
    842 	ahc_attach(ahc);
    843 }
    844 
    845 /*
    846  * Test for the presense of external sram in an
    847  * "unshared" configuration.
    848  */
    849 static int
    850 ahc_ext_scbram_present(struct ahc_softc *ahc)
    851 {
    852 	int ramps;
    853 	int single_user;
    854 	pcireg_t devconfig;
    855 	struct ahc_pci_busdata *bd = ahc->bus_data;
    856 
    857 	devconfig = pci_conf_read(bd->pc, bd->tag, DEVCONFIG);
    858 	single_user = (devconfig & MPORTMODE) != 0;
    859 
    860 	if ((ahc->features & AHC_ULTRA2) != 0)
    861 		ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
    862 	else if ((ahc->chip & AHC_CHIPID_MASK) >= AHC_AIC7870)
    863 		ramps = (devconfig & RAMPSM) != 0;
    864 	else
    865 		ramps = 0;
    866 
    867 	if (ramps && single_user)
    868 		return (1);
    869 	return (0);
    870 }
    871 
    872 /*
    873  * Enable external scbram.
    874  */
    875 static void
    876 ahc_ext_scbram_config(struct ahc_softc *ahc, int enable, int pcheck, int fast)
    877 {
    878 	pcireg_t devconfig;
    879 	struct ahc_pci_busdata *bd = ahc->bus_data;
    880 
    881 	if (ahc->features & AHC_MULTI_FUNC) {
    882 		/*
    883 		 * Set the SCB Base addr (highest address bit)
    884 		 * depending on which channel we are.
    885 		 */
    886 		ahc_outb(ahc, SCBBADDR, (u_int8_t)bd->func);
    887 	}
    888 
    889 	devconfig = pci_conf_read(bd->pc, bd->tag, DEVCONFIG);
    890 	if ((ahc->features & AHC_ULTRA2) != 0) {
    891 		u_int dscommand0;
    892 
    893 		dscommand0 = ahc_inb(ahc, DSCOMMAND0);
    894 		if (enable)
    895 			dscommand0 &= ~INTSCBRAMSEL;
    896 		else
    897 			dscommand0 |= INTSCBRAMSEL;
    898 		ahc_outb(ahc, DSCOMMAND0, dscommand0);
    899 	} else {
    900 		if (fast)
    901 			devconfig &= ~EXTSCBTIME;
    902 		else
    903 			devconfig |= EXTSCBTIME;
    904 		if (enable)
    905 			devconfig &= ~SCBRAMSEL;
    906 		else
    907 			devconfig |= SCBRAMSEL;
    908 	}
    909 	if (pcheck)
    910 		devconfig |= EXTSCBPEN;
    911 	else
    912 		devconfig &= ~EXTSCBPEN;
    913 
    914 	pci_conf_write(bd->pc, bd->tag, DEVCONFIG, devconfig);
    915 }
    916 
    917 /*
    918  * Take a look to see if we have external SRAM.
    919  * We currently do not attempt to use SRAM that is
    920  * shared among multiple controllers.
    921  */
    922 static void
    923 ahc_probe_ext_scbram(struct ahc_softc *ahc)
    924 {
    925 	int num_scbs;
    926 	int test_num_scbs;
    927 	int enable;
    928 	int pcheck;
    929 	int fast;
    930 
    931 	if (ahc_ext_scbram_present(ahc) == 0)
    932 		return;
    933 
    934 	/*
    935 	 * Probe for the best parameters to use.
    936 	 */
    937 	enable = FALSE;
    938 	pcheck = FALSE;
    939 	fast = FALSE;
    940 	ahc_ext_scbram_config(ahc, /*enable*/TRUE, pcheck, fast);
    941 	num_scbs = ahc_probe_scbs(ahc);
    942 	if (num_scbs == 0) {
    943 		/* The SRAM wasn't really present. */
    944 		goto done;
    945 	}
    946 	enable = TRUE;
    947 
    948 	/*
    949 	 * Clear any outstanding parity error
    950 	 * and ensure that parity error reporting
    951 	 * is enabled.
    952 	 */
    953 	ahc_outb(ahc, SEQCTL, 0);
    954 	ahc_outb(ahc, CLRINT, CLRPARERR);
    955 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
    956 
    957 	/* Now see if we can do parity */
    958 	ahc_ext_scbram_config(ahc, enable, /*pcheck*/TRUE, fast);
    959 	num_scbs = ahc_probe_scbs(ahc);
    960 	if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
    961 	 || (ahc_inb(ahc, ERROR) & MPARERR) == 0)
    962 		pcheck = TRUE;
    963 
    964 	/* Clear any resulting parity error */
    965 	ahc_outb(ahc, CLRINT, CLRPARERR);
    966 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
    967 
    968 	/* Now see if we can do fast timing */
    969 	ahc_ext_scbram_config(ahc, enable, pcheck, /*fast*/TRUE);
    970 	test_num_scbs = ahc_probe_scbs(ahc);
    971 	if (test_num_scbs == num_scbs
    972 	 && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
    973 	  || (ahc_inb(ahc, ERROR) & MPARERR) == 0))
    974 		fast = TRUE;
    975 
    976 done:
    977 	/*
    978 	 * Disable parity error reporting until we
    979 	 * can load instruction ram.
    980 	 */
    981 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
    982 	/* Clear any latched parity error */
    983 	ahc_outb(ahc, CLRINT, CLRPARERR);
    984 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
    985 	if (bootverbose && enable) {
    986 		printf("%s: External SRAM, %s access%s\n",
    987 		       ahc_name(ahc), fast ? "fast" : "slow",
    988 		       pcheck ? ", parity checking enabled" : "");
    989 
    990 	}
    991 	ahc_ext_scbram_config(ahc, enable, pcheck, fast);
    992 }
    993 
    994 #define	DPE	PCI_STATUS_PARITY_DETECT
    995 #define SSE	PCI_STATUS_SPECIAL_ERROR
    996 #define	RMA	PCI_STATUS_MASTER_ABORT
    997 #define	RTA	PCI_STATUS_MASTER_TARGET_ABORT
    998 #define STA	PCI_STATUS_TARGET_TARGET_ABORT
    999 #define DPR	PCI_STATUS_PARITY_ERROR
   1000 
   1001 int
   1002 ahc_pci_intr(struct ahc_softc *ahc)
   1003 {
   1004 	pcireg_t status1;
   1005 	struct ahc_pci_busdata *bd = ahc->bus_data;
   1006 
   1007 	if ((ahc_inb(ahc, ERROR) & PCIERRSTAT) == 0)
   1008 		return 0;
   1009 
   1010 	status1 = pci_conf_read(bd->pc, bd->tag, PCI_COMMAND_STATUS_REG);
   1011 
   1012 	if (status1 & DPE) {
   1013 		printf("%s: Data Parity Error Detected during address "
   1014 		       "or write data phase\n", ahc_name(ahc));
   1015 	}
   1016 	if (status1 & SSE) {
   1017 		printf("%s: Signal System Error Detected\n", ahc_name(ahc));
   1018 	}
   1019 	if (status1 & RMA) {
   1020 		printf("%s: Received a Master Abort\n", ahc_name(ahc));
   1021 	}
   1022 	if (status1 & RTA) {
   1023 		printf("%s: Received a Target Abort\n", ahc_name(ahc));
   1024 	}
   1025 	if (status1 & STA) {
   1026 		printf("%s: Signaled a Target Abort\n", ahc_name(ahc));
   1027 	}
   1028 	if (status1 & DPR) {
   1029 		printf("%s: Data Parity Error has been reported via PERR#\n",
   1030 		       ahc_name(ahc));
   1031 	}
   1032 	if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
   1033 		printf("%s: Latched PCIERR interrupt with "
   1034 		       "no status bits set\n", ahc_name(ahc));
   1035 	}
   1036 	pci_conf_write(bd->pc, bd->tag, PCI_COMMAND_STATUS_REG, status1);
   1037 
   1038 	if (status1 & (DPR|RMA|RTA)) {
   1039 		ahc_outb(ahc, CLRINT, CLRPARERR);
   1040 	}
   1041 
   1042 	return 1;
   1043 }
   1044 
   1045 static int
   1046 ahc_aic7850_setup(struct pci_attach_args *pa, char *channel,
   1047 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1048 {
   1049 	*channel = 'A';
   1050 	*chip = AHC_AIC7850;
   1051 	*features = AHC_AIC7850_FE;
   1052 	return (0);
   1053 }
   1054 
   1055 static int
   1056 ahc_aic7855_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_AIC7855;
   1061 	*features = AHC_AIC7855_FE;
   1062 	return (0);
   1063 }
   1064 
   1065 static int
   1066 ahc_aic7859_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_AIC7859;
   1071 	*features = AHC_AIC7859_FE;
   1072 	return (0);
   1073 }
   1074 
   1075 static int
   1076 ahc_aic7860_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_AIC7860;
   1081 	*features = AHC_AIC7860_FE;
   1082 	return (0);
   1083 }
   1084 
   1085 static int
   1086 ahc_aic7870_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_AIC7870;
   1091 	*features = AHC_AIC7870_FE;
   1092 	return (0);
   1093 }
   1094 
   1095 static int
   1096 ahc_aha394X_setup(struct pci_attach_args *pa, char *channel,
   1097 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1098 {
   1099 	int error;
   1100 
   1101 	error = ahc_aic7870_setup(pa, channel, chip, features, flags);
   1102 	if (error == 0)
   1103 		error = ahc_aha394XX_setup(pa, channel, chip, features, flags);
   1104 	return (error);
   1105 }
   1106 
   1107 static int
   1108 ahc_aha398X_setup(struct pci_attach_args *pa, char *channel,
   1109 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1110 {
   1111 	int error;
   1112 
   1113 	error = ahc_aic7870_setup(pa, channel, chip, features, flags);
   1114 	if (error == 0)
   1115 		error = ahc_aha398XX_setup(pa, channel, chip, features, flags);
   1116 	return (error);
   1117 }
   1118 
   1119 static int
   1120 ahc_aic7880_setup(struct pci_attach_args *pa, char *channel,
   1121 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1122 {
   1123 	*channel = 'A';
   1124 	*chip = AHC_AIC7880;
   1125 	*features = AHC_AIC7880_FE;
   1126 	return (0);
   1127 }
   1128 
   1129 static int
   1130 ahc_2940Pro_setup(struct pci_attach_args *pa, char *channel,
   1131 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1132 {
   1133 	int error;
   1134 
   1135 	*flags |= AHC_INT50_SPEEDFLEX;
   1136 	error = ahc_aic7880_setup(pa, channel, chip, features, flags);
   1137 	return (0);
   1138 }
   1139 
   1140 static int
   1141 ahc_aha394XU_setup(struct pci_attach_args *pa, char *channel,
   1142 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1143 {
   1144 	int error;
   1145 
   1146 	error = ahc_aic7880_setup(pa, channel, chip, features, flags);
   1147 	if (error == 0)
   1148 		error = ahc_aha394XX_setup(pa, channel, chip, features, flags);
   1149 	return (error);
   1150 }
   1151 
   1152 static int
   1153 ahc_aha398XU_setup(struct pci_attach_args *pa, char *channel,
   1154 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1155 {
   1156 	int error;
   1157 
   1158 	error = ahc_aic7880_setup(pa, channel, chip, features, flags);
   1159 	if (error == 0)
   1160 		error = ahc_aha398XX_setup(pa, channel, chip, features, flags);
   1161 	return (error);
   1162 }
   1163 
   1164 static int
   1165 ahc_aic7890_setup(struct pci_attach_args *pa, char *channel,
   1166 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1167 {
   1168 	*channel = 'A';
   1169 	*chip = AHC_AIC7890;
   1170 	*features = AHC_AIC7890_FE;
   1171 	*flags |= AHC_NEWEEPROM_FMT;
   1172 	return (0);
   1173 }
   1174 
   1175 static int
   1176 ahc_aic7892_setup(struct pci_attach_args *pa, char *channel,
   1177 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1178 {
   1179 	*channel = 'A';
   1180 	*chip = AHC_AIC7892;
   1181 	*features = AHC_AIC7892_FE;
   1182 	*flags |= AHC_NEWEEPROM_FMT;
   1183 	return (0);
   1184 }
   1185 
   1186 static int
   1187 ahc_aic7895_setup(struct pci_attach_args *pa, char *channel,
   1188 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1189 {
   1190 	pcireg_t devconfig;
   1191 
   1192 	*channel = pa->pa_function == 1 ? 'B' : 'A';
   1193 	*chip = AHC_AIC7895;
   1194 	/* The 'C' revision of the aic7895 has a few additional features */
   1195 	if (PCI_REVISION(pa->pa_class) >= 4)
   1196 		*features = AHC_AIC7895C_FE;
   1197 	else
   1198 		*features = AHC_AIC7895_FE;
   1199 	*flags |= AHC_NEWEEPROM_FMT;
   1200 	devconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
   1201 	devconfig &= ~SCBSIZE32;
   1202 	pci_conf_write(pa->pa_pc, pa->pa_tag, DEVCONFIG, devconfig);
   1203 	return (0);
   1204 }
   1205 
   1206 static int
   1207 ahc_aic7896_setup(struct pci_attach_args *pa, char *channel,
   1208 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1209 {
   1210 	*channel = pa->pa_function == 1 ? 'B' : 'A';
   1211 	*chip = AHC_AIC7896;
   1212 	*features = AHC_AIC7896_FE;
   1213 	*flags |= AHC_NEWEEPROM_FMT;
   1214 	return (0);
   1215 }
   1216 
   1217 static int
   1218 ahc_aic7899_setup(struct pci_attach_args *pa, char *channel,
   1219 		  ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1220 {
   1221 	*channel = pa->pa_function == 1 ? 'B' : 'A';
   1222 	*chip = AHC_AIC7899;
   1223 	*features = AHC_AIC7899_FE;
   1224 	*flags |= AHC_NEWEEPROM_FMT;
   1225 	return (0);
   1226 }
   1227 
   1228 static int
   1229 ahc_raid_setup(struct pci_attach_args *pa, char *channel,
   1230 	       ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1231 {
   1232 	printf("RAID functionality unsupported\n");
   1233 	return (ENXIO);
   1234 }
   1235 
   1236 static int
   1237 ahc_aha394XX_setup(struct pci_attach_args *pa, char *channel,
   1238 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1239 {
   1240 	switch (pa->pa_device) {
   1241 	case AHC_394X_SLOT_CHANNEL_A:
   1242 		*channel = 'A';
   1243 		break;
   1244 	case AHC_394X_SLOT_CHANNEL_B:
   1245 		*channel = 'B';
   1246 		break;
   1247 	default:
   1248 		printf("adapter at unexpected slot %d\n"
   1249 		       "unable to map to a channel\n",
   1250 		       pa->pa_device);
   1251 		*channel = 'A';
   1252 	}
   1253 	return (0);
   1254 }
   1255 
   1256 static int
   1257 ahc_aha398XX_setup(struct pci_attach_args *pa, char *channel,
   1258 		   ahc_chip *chip, ahc_feature *features, ahc_flag *flags)
   1259 {
   1260 	switch (pa->pa_device) {
   1261 	case AHC_398X_SLOT_CHANNEL_A:
   1262 		*channel = 'A';
   1263 		break;
   1264 	case AHC_398X_SLOT_CHANNEL_B:
   1265 		*channel = 'B';
   1266 		break;
   1267 	case AHC_398X_SLOT_CHANNEL_C:
   1268 		*channel = 'C';
   1269 		break;
   1270 	default:
   1271 		printf("adapter at unexpected slot %d\n"
   1272 		       "unable to map to a channel\n",
   1273 		       pa->pa_device);
   1274 		*channel = 'A';
   1275 	}
   1276 	*flags |= AHC_LARGE_SEEPROM;
   1277 	return (0);
   1278 }
   1279