xref: /netbsd-src/sys/dev/pci/ahc_pci.c (revision deb6f0161a9109e7de9b519dc8dfb9478668dcdd)
1 /*
2  * Product specific probe and attach routines for:
3  *      3940, 2940, aic7895, aic7890, aic7880,
4  *	aic7870, aic7860 and aic7850 SCSI controllers
5  *
6  * Copyright (c) 1994-2001 Justin T. Gibbs.
7  * Copyright (c) 2000-2001 Adaptec Inc.
8  * All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions, and the following disclaimer,
15  *    without modification.
16  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
17  *    substantially similar to the "NO WARRANTY" disclaimer below
18  *    ("Disclaimer") and any redistribution must be conditioned upon
19  *    including a substantially similar Disclaimer requirement for further
20  *    binary redistribution.
21  * 3. Neither the names of the above-listed copyright holders nor the names
22  *    of any contributors may be used to endorse or promote products derived
23  *    from this software without specific prior written permission.
24  *
25  * Alternatively, this software may be distributed under the terms of the
26  * GNU General Public License ("GPL") version 2 as published by the Free
27  * Software Foundation.
28  *
29  * NO WARRANTY
30  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
31  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
32  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
33  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
34  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
38  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
39  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
40  * POSSIBILITY OF SUCH DAMAGES.
41  *
42  * $Id: ahc_pci.c,v 1.72 2018/06/03 10:45:16 maxv Exp $
43  *
44  * //depot/aic7xxx/aic7xxx/aic7xxx_pci.c#57 $
45  *
46  * $FreeBSD: /repoman/r/ncvs/src/sys/dev/aic7xxx/aic7xxx_pci.c,v 1.22 2003/01/20 20:44:55 gibbs Exp $
47  */
48 /*
49  * Ported from FreeBSD by Pascal Renauld, Network Storage Solutions, Inc. - April 2003
50  */
51 
52 #include <sys/cdefs.h>
53 __KERNEL_RCSID(0, "$NetBSD: ahc_pci.c,v 1.72 2018/06/03 10:45:16 maxv Exp $");
54 
55 #include <sys/param.h>
56 #include <sys/systm.h>
57 #include <sys/malloc.h>
58 #include <sys/kernel.h>
59 #include <sys/queue.h>
60 #include <sys/device.h>
61 #include <sys/reboot.h>
62 
63 #include <sys/bus.h>
64 #include <sys/intr.h>
65 
66 #include <dev/pci/pcireg.h>
67 #include <dev/pci/pcivar.h>
68 
69 
70 /* XXXX some i386 on-board chips act weird when memory-mapped */
71 #ifndef __i386__
72 #define AHC_ALLOW_MEMIO
73 #endif
74 
75 #define AHC_PCI_IOADDR	PCI_MAPREG_START	/* I/O Address */
76 #define AHC_PCI_MEMADDR	(PCI_MAPREG_START + 4)	/* Mem I/O Address */
77 
78 #include <dev/ic/aic7xxx_osm.h>
79 #include <dev/ic/aic7xxx_inline.h>
80 
81 #include <dev/ic/smc93cx6var.h>
82 
83 
84 static inline uint64_t
85 ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
86 {
87 	uint64_t id;
88 
89 	id = subvendor
90 	   | (subdevice << 16)
91 	   | ((uint64_t)vendor << 32)
92 	   | ((uint64_t)device << 48);
93 
94 	return (id);
95 }
96 
97 #define ID_ALL_MASK			0xFFFFFFFFFFFFFFFFull
98 #define ID_DEV_VENDOR_MASK		0xFFFFFFFF00000000ull
99 #define ID_9005_GENERIC_MASK		0xFFF0FFFF00000000ull
100 #define ID_9005_SISL_MASK		0x000FFFFF00000000ull
101 #define ID_9005_SISL_ID			0x0005900500000000ull
102 #define ID_AIC7850			0x5078900400000000ull
103 #define ID_AHA_2902_04_10_15_20_30C	0x5078900478509004ull
104 #define ID_AIC7855			0x5578900400000000ull
105 #define ID_AIC7859			0x3860900400000000ull
106 #define ID_AHA_2930CU			0x3860900438699004ull
107 #define ID_AIC7860			0x6078900400000000ull
108 #define ID_AIC7860C			0x6078900478609004ull
109 #define ID_AHA_1480A			0x6075900400000000ull
110 #define ID_AHA_2940AU_0			0x6178900400000000ull
111 #define ID_AHA_2940AU_1			0x6178900478619004ull
112 #define ID_AHA_2940AU_CN		0x2178900478219004ull
113 #define ID_AHA_2930C_VAR		0x6038900438689004ull
114 
115 #define ID_AIC7870			0x7078900400000000ull
116 #define ID_AHA_2940			0x7178900400000000ull
117 #define ID_AHA_3940			0x7278900400000000ull
118 #define ID_AHA_398X			0x7378900400000000ull
119 #define ID_AHA_2944			0x7478900400000000ull
120 #define ID_AHA_3944			0x7578900400000000ull
121 #define ID_AHA_4944			0x7678900400000000ull
122 
123 #define ID_AIC7880			0x8078900400000000ull
124 #define ID_AIC7880_B			0x8078900478809004ull
125 #define ID_AHA_2940U			0x8178900400000000ull
126 #define ID_AHA_3940U			0x8278900400000000ull
127 #define ID_AHA_2944U			0x8478900400000000ull
128 #define ID_AHA_3944U			0x8578900400000000ull
129 #define ID_AHA_398XU			0x8378900400000000ull
130 #define ID_AHA_4944U			0x8678900400000000ull
131 #define ID_AHA_2940UB			0x8178900478819004ull
132 #define ID_AHA_2930U			0x8878900478889004ull
133 #define ID_AHA_2940U_PRO		0x8778900478879004ull
134 #define ID_AHA_2940U_CN			0x0078900478009004ull
135 
136 #define ID_AIC7895			0x7895900478959004ull
137 #define ID_AIC7895_ARO			0x7890900478939004ull
138 #define ID_AIC7895_ARO_MASK		0xFFF0FFFFFFFFFFFFull
139 #define ID_AHA_2940U_DUAL		0x7895900478919004ull
140 #define ID_AHA_3940AU			0x7895900478929004ull
141 #define ID_AHA_3944AU			0x7895900478949004ull
142 
143 #define ID_AIC7890			0x001F9005000F9005ull
144 #define ID_AIC7890_ARO			0x00139005000F9005ull
145 #define ID_AAA_131U2			0x0013900500039005ull
146 #define ID_AHA_2930U2			0x0011900501819005ull
147 #define ID_AHA_2940U2B			0x00109005A1009005ull
148 #define ID_AHA_2940U2_OEM		0x0010900521809005ull
149 #define ID_AHA_2940U2			0x00109005A1809005ull
150 #define ID_AHA_2950U2B			0x00109005E1009005ull
151 
152 #define ID_AIC7892			0x008F9005FFFF9005ull
153 #define ID_AIC7892_ARO			0x00839005FFFF9005ull
154 #define ID_AHA_2915LP			0x0082900502109005ull
155 #define ID_AHA_29160			0x00809005E2A09005ull
156 #define ID_AHA_29160_CPQ		0x00809005E2A00E11ull
157 #define ID_AHA_29160N			0x0080900562A09005ull
158 #define ID_AHA_29160C			0x0080900562209005ull
159 #define ID_AHA_29160B			0x00809005E2209005ull
160 #define ID_AHA_19160B			0x0081900562A19005ull
161 
162 #define ID_AIC7896			0x005F9005FFFF9005ull
163 #define ID_AIC7896_ARO			0x00539005FFFF9005ull
164 #define ID_AHA_3950U2B_0		0x00509005FFFF9005ull
165 #define ID_AHA_3950U2B_1		0x00509005F5009005ull
166 #define ID_AHA_3950U2D_0		0x00519005FFFF9005ull
167 #define ID_AHA_3950U2D_1		0x00519005B5009005ull
168 
169 #define ID_AIC7899			0x00CF9005FFFF9005ull
170 #define ID_AIC7899_ARO			0x00C39005FFFF9005ull
171 #define ID_AHA_3960D			0x00C09005F6209005ull
172 #define ID_AHA_3960D_CPQ		0x00C09005F6200E11ull
173 
174 #define ID_AIC7810			0x1078900400000000ull
175 #define ID_AIC7815			0x7815900400000000ull
176 
177 #define DEVID_9005_TYPE(id) ((id) & 0xF)
178 #define		DEVID_9005_TYPE_HBA		0x0	/* Standard Card */
179 #define		DEVID_9005_TYPE_AAA		0x3	/* RAID Card */
180 #define		DEVID_9005_TYPE_SISL		0x5	/* Container ROMB */
181 #define		DEVID_9005_TYPE_MB		0xF	/* On Motherboard */
182 
183 #define DEVID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
184 #define		DEVID_9005_MAXRATE_U160		0x0
185 #define		DEVID_9005_MAXRATE_ULTRA2	0x1
186 #define		DEVID_9005_MAXRATE_ULTRA	0x2
187 #define		DEVID_9005_MAXRATE_FAST		0x3
188 
189 #define DEVID_9005_MFUNC(id) (((id) & 0x40) >> 6)
190 
191 #define DEVID_9005_CLASS(id) (((id) & 0xFF00) >> 8)
192 #define		DEVID_9005_CLASS_SPI		0x0	/* Parallel SCSI */
193 
194 #define SUBID_9005_TYPE(id) ((id) & 0xF)
195 #define		SUBID_9005_TYPE_MB		0xF	/* On Motherboard */
196 #define		SUBID_9005_TYPE_CARD		0x0	/* Standard Card */
197 #define		SUBID_9005_TYPE_LCCARD		0x1	/* Low Cost Card */
198 #define		SUBID_9005_TYPE_RAID		0x3	/* Combined with Raid */
199 
200 #define SUBID_9005_TYPE_KNOWN(id)			\
201 	  ((((id) & 0xF) == SUBID_9005_TYPE_MB)		\
202 	|| (((id) & 0xF) == SUBID_9005_TYPE_CARD)	\
203 	|| (((id) & 0xF) == SUBID_9005_TYPE_LCCARD)	\
204 	|| (((id) & 0xF) == SUBID_9005_TYPE_RAID))
205 
206 #define SUBID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
207 #define		SUBID_9005_MAXRATE_ULTRA2	0x0
208 #define		SUBID_9005_MAXRATE_ULTRA	0x1
209 #define		SUBID_9005_MAXRATE_U160		0x2
210 #define		SUBID_9005_MAXRATE_RESERVED	0x3
211 
212 #define SUBID_9005_SEEPTYPE(id)						\
213 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
214 	 ? ((id) & 0xC0) >> 6						\
215 	 : ((id) & 0x300) >> 8)
216 #define		SUBID_9005_SEEPTYPE_NONE	0x0
217 #define		SUBID_9005_SEEPTYPE_1K		0x1
218 #define		SUBID_9005_SEEPTYPE_2K_4K	0x2
219 #define		SUBID_9005_SEEPTYPE_RESERVED	0x3
220 #define SUBID_9005_AUTOTERM(id)						\
221 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
222 	 ? (((id) & 0x400) >> 10) == 0					\
223 	 : (((id) & 0x40) >> 6) == 0)
224 
225 #define SUBID_9005_NUMCHAN(id)						\
226 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
227 	 ? ((id) & 0x300) >> 8						\
228 	 : ((id) & 0xC00) >> 10)
229 
230 #define SUBID_9005_LEGACYCONN(id)					\
231 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
232 	 ? 0								\
233 	 : ((id) & 0x80) >> 7)
234 
235 #define SUBID_9005_MFUNCENB(id)						\
236 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
237 	 ? ((id) & 0x800) >> 11						\
238 	 : ((id) & 0x1000) >> 12)
239 /*
240  * Informational only. Should use chip register to be
241  * certain, but may be use in identification strings.
242  */
243 #define SUBID_9005_CARD_SCSIWIDTH_MASK	0x2000
244 #define SUBID_9005_CARD_PCIWIDTH_MASK	0x4000
245 #define SUBID_9005_CARD_SEDIFF_MASK	0x8000
246 
247 static ahc_device_setup_t ahc_aic785X_setup;
248 static ahc_device_setup_t ahc_aic7860_setup;
249 static ahc_device_setup_t ahc_apa1480_setup;
250 static ahc_device_setup_t ahc_aic7870_setup;
251 static ahc_device_setup_t ahc_aha394X_setup;
252 static ahc_device_setup_t ahc_aha494X_setup;
253 static ahc_device_setup_t ahc_aha398X_setup;
254 static ahc_device_setup_t ahc_aic7880_setup;
255 static ahc_device_setup_t ahc_aha2940Pro_setup;
256 static ahc_device_setup_t ahc_aha394XU_setup;
257 static ahc_device_setup_t ahc_aha398XU_setup;
258 static ahc_device_setup_t ahc_aic7890_setup;
259 static ahc_device_setup_t ahc_aic7892_setup;
260 static ahc_device_setup_t ahc_aic7895_setup;
261 static ahc_device_setup_t ahc_aic7896_setup;
262 static ahc_device_setup_t ahc_aic7899_setup;
263 static ahc_device_setup_t ahc_aha29160C_setup;
264 static ahc_device_setup_t ahc_raid_setup;
265 static ahc_device_setup_t ahc_aha394XX_setup;
266 static ahc_device_setup_t ahc_aha494XX_setup;
267 static ahc_device_setup_t ahc_aha398XX_setup;
268 
269 static const struct ahc_pci_identity ahc_pci_ident_table[] =
270 {
271 	/* aic7850 based controllers */
272 	{
273 		ID_AHA_2902_04_10_15_20_30C,
274 		ID_ALL_MASK,
275 		"Adaptec 2902/04/10/15/20/30C SCSI adapter",
276 		ahc_aic785X_setup
277 	},
278 	/* aic7860 based controllers */
279 	{
280 		ID_AHA_2930CU,
281 		ID_ALL_MASK,
282 		"Adaptec 2930CU SCSI adapter",
283 		ahc_aic7860_setup
284 	},
285 	{
286 		ID_AHA_1480A & ID_DEV_VENDOR_MASK,
287 		ID_DEV_VENDOR_MASK,
288 		"Adaptec 1480A Ultra SCSI adapter",
289 		ahc_apa1480_setup
290 	},
291 	{
292 		ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
293 		ID_DEV_VENDOR_MASK,
294 		"Adaptec 2940A Ultra SCSI adapter",
295 		ahc_aic7860_setup
296 	},
297 	{
298 		ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
299 		ID_DEV_VENDOR_MASK,
300 		"Adaptec 2940A/CN Ultra SCSI adapter",
301 		ahc_aic7860_setup
302 	},
303 	{
304 		ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
305 		ID_DEV_VENDOR_MASK,
306 		"Adaptec 2930C Ultra SCSI adapter (VAR)",
307 		ahc_aic7860_setup
308 	},
309 	/* aic7870 based controllers */
310 	{
311 		ID_AHA_2940,
312 		ID_ALL_MASK,
313 		"Adaptec 2940 SCSI adapter",
314 		ahc_aic7870_setup
315 	},
316 	{
317 		ID_AHA_3940,
318 		ID_ALL_MASK,
319 		"Adaptec 3940 SCSI adapter",
320 		ahc_aha394X_setup
321 	},
322 	{
323 		ID_AHA_398X,
324 		ID_ALL_MASK,
325 		"Adaptec 398X SCSI RAID adapter",
326 		ahc_aha398X_setup
327 	},
328 	{
329 		ID_AHA_2944,
330 		ID_ALL_MASK,
331 		"Adaptec 2944 SCSI adapter",
332 		ahc_aic7870_setup
333 	},
334 	{
335 		ID_AHA_3944,
336 		ID_ALL_MASK,
337 		"Adaptec 3944 SCSI adapter",
338 		ahc_aha394X_setup
339 	},
340 	{
341 		ID_AHA_4944,
342 		ID_ALL_MASK,
343 		"Adaptec 4944 SCSI adapter",
344 		ahc_aha494X_setup
345 	},
346 	/* aic7880 based controllers */
347 	{
348 		ID_AHA_2940U & ID_DEV_VENDOR_MASK,
349 		ID_DEV_VENDOR_MASK,
350 		"Adaptec 2940 Ultra SCSI adapter",
351 		ahc_aic7880_setup
352 	},
353 	{
354 		ID_AHA_3940U & ID_DEV_VENDOR_MASK,
355 		ID_DEV_VENDOR_MASK,
356 		"Adaptec 3940 Ultra SCSI adapter",
357 		ahc_aha394XU_setup
358 	},
359 	{
360 		ID_AHA_2944U & ID_DEV_VENDOR_MASK,
361 		ID_DEV_VENDOR_MASK,
362 		"Adaptec 2944 Ultra SCSI adapter",
363 		ahc_aic7880_setup
364 	},
365 	{
366 		ID_AHA_3944U & ID_DEV_VENDOR_MASK,
367 		ID_DEV_VENDOR_MASK,
368 		"Adaptec 3944 Ultra SCSI adapter",
369 		ahc_aha394XU_setup
370 	},
371 	{
372 		ID_AHA_398XU & ID_DEV_VENDOR_MASK,
373 		ID_DEV_VENDOR_MASK,
374 		"Adaptec 398X Ultra SCSI RAID adapter",
375 		ahc_aha398XU_setup
376 	},
377 	{
378 		/*
379 		 * XXX Don't know the slot numbers
380 		 * so we can't identify channels
381 		 */
382 		ID_AHA_4944U & ID_DEV_VENDOR_MASK,
383 		ID_DEV_VENDOR_MASK,
384 		"Adaptec 4944 Ultra SCSI adapter",
385 		ahc_aic7880_setup
386 	},
387 	{
388 		ID_AHA_2930U & ID_DEV_VENDOR_MASK,
389 		ID_DEV_VENDOR_MASK,
390 		"Adaptec 2930 Ultra SCSI adapter",
391 		ahc_aic7880_setup
392 	},
393 	{
394 		ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
395 		ID_DEV_VENDOR_MASK,
396 		"Adaptec 2940 Pro Ultra SCSI adapter",
397 		ahc_aha2940Pro_setup
398 	},
399 	{
400 		ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
401 		ID_DEV_VENDOR_MASK,
402 		"Adaptec 2940/CN Ultra SCSI adapter",
403 		ahc_aic7880_setup
404 	},
405 	/* Ignore all SISL (AAC on MB) based controllers. */
406 	{
407 		ID_9005_SISL_ID,
408 		ID_9005_SISL_MASK,
409 		NULL,
410 		NULL
411 	},
412 	/* aic7890 based controllers */
413 	{
414 		ID_AHA_2930U2,
415 		ID_ALL_MASK,
416 		"Adaptec 2930 Ultra2 SCSI adapter",
417 		ahc_aic7890_setup
418 	},
419 	{
420 		ID_AHA_2940U2B,
421 		ID_ALL_MASK,
422 		"Adaptec 2940B Ultra2 SCSI adapter",
423 		ahc_aic7890_setup
424 	},
425 	{
426 		ID_AHA_2940U2_OEM,
427 		ID_ALL_MASK,
428 		"Adaptec 2940 Ultra2 SCSI adapter (OEM)",
429 		ahc_aic7890_setup
430 	},
431 	{
432 		ID_AHA_2940U2,
433 		ID_ALL_MASK,
434 		"Adaptec 2940 Ultra2 SCSI adapter",
435 		ahc_aic7890_setup
436 	},
437 	{
438 		ID_AHA_2950U2B,
439 		ID_ALL_MASK,
440 		"Adaptec 2950 Ultra2 SCSI adapter",
441 		ahc_aic7890_setup
442 	},
443 	{
444 		ID_AIC7890_ARO,
445 		ID_ALL_MASK,
446 		"Adaptec aic7890/91 Ultra2 SCSI adapter (ARO)",
447 		ahc_aic7890_setup
448 	},
449 	{
450 		ID_AAA_131U2,
451 		ID_ALL_MASK,
452 		"Adaptec AAA-131 Ultra2 RAID adapter",
453 		ahc_aic7890_setup
454 	},
455 	/* aic7892 based controllers */
456 	{
457 		ID_AHA_29160,
458 		ID_ALL_MASK,
459 		"Adaptec 29160 Ultra160 SCSI adapter",
460 		ahc_aic7892_setup
461 	},
462 	{
463 		ID_AHA_29160_CPQ,
464 		ID_ALL_MASK,
465 		"Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
466 		ahc_aic7892_setup
467 	},
468 	{
469 		ID_AHA_29160N,
470 		ID_ALL_MASK,
471 		"Adaptec 29160N Ultra160 SCSI adapter",
472 		ahc_aic7892_setup
473 	},
474 	{
475 		ID_AHA_29160C,
476 		ID_ALL_MASK,
477 		"Adaptec 29160C Ultra160 SCSI adapter",
478 		ahc_aha29160C_setup
479 	},
480 	{
481 		ID_AHA_29160B,
482 		ID_ALL_MASK,
483 		"Adaptec 29160B Ultra160 SCSI adapter",
484 		ahc_aic7892_setup
485 	},
486 	{
487 		ID_AHA_19160B,
488 		ID_ALL_MASK,
489 		"Adaptec 19160B Ultra160 SCSI adapter",
490 		ahc_aic7892_setup
491 	},
492 	{
493 		ID_AIC7892_ARO,
494 		ID_ALL_MASK,
495 		"Adaptec aic7892 Ultra160 SCSI adapter (ARO)",
496 		ahc_aic7892_setup
497 	},
498 	{
499 		ID_AHA_2915LP,
500 		ID_ALL_MASK,
501 		"Adaptec 2915LP Ultra160 SCSI adapter",
502 		ahc_aic7892_setup
503 	},
504 	/* aic7895 based controllers */
505 	{
506 		ID_AHA_2940U_DUAL,
507 		ID_ALL_MASK,
508 		"Adaptec 2940/DUAL Ultra SCSI adapter",
509 		ahc_aic7895_setup
510 	},
511 	{
512 		ID_AHA_3940AU,
513 		ID_ALL_MASK,
514 		"Adaptec 3940A Ultra SCSI adapter",
515 		ahc_aic7895_setup
516 	},
517 	{
518 		ID_AHA_3944AU,
519 		ID_ALL_MASK,
520 		"Adaptec 3944A Ultra SCSI adapter",
521 		ahc_aic7895_setup
522 	},
523 	{
524 		ID_AIC7895_ARO,
525 		ID_AIC7895_ARO_MASK,
526 		"Adaptec aic7895 Ultra SCSI adapter (ARO)",
527 		ahc_aic7895_setup
528 	},
529 	/* aic7896/97 based controllers */
530 	{
531 		ID_AHA_3950U2B_0,
532 		ID_ALL_MASK,
533 		"Adaptec 3950B Ultra2 SCSI adapter",
534 		ahc_aic7896_setup
535 	},
536 	{
537 		ID_AHA_3950U2B_1,
538 		ID_ALL_MASK,
539 		"Adaptec 3950B Ultra2 SCSI adapter",
540 		ahc_aic7896_setup
541 	},
542 	{
543 		ID_AHA_3950U2D_0,
544 		ID_ALL_MASK,
545 		"Adaptec 3950D Ultra2 SCSI adapter",
546 		ahc_aic7896_setup
547 	},
548 	{
549 		ID_AHA_3950U2D_1,
550 		ID_ALL_MASK,
551 		"Adaptec 3950D Ultra2 SCSI adapter",
552 		ahc_aic7896_setup
553 	},
554 	{
555 		ID_AIC7896_ARO,
556 		ID_ALL_MASK,
557 		"Adaptec aic7896/97 Ultra2 SCSI adapter (ARO)",
558 		ahc_aic7896_setup
559 	},
560 	/* aic7899 based controllers */
561 	{
562 		ID_AHA_3960D,
563 		ID_ALL_MASK,
564 		"Adaptec 3960D Ultra160 SCSI adapter",
565 		ahc_aic7899_setup
566 	},
567 	{
568 		ID_AHA_3960D_CPQ,
569 		ID_ALL_MASK,
570 		"Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
571 		ahc_aic7899_setup
572 	},
573 	{
574 		ID_AIC7899_ARO,
575 		ID_ALL_MASK,
576 		"Adaptec aic7899 Ultra160 SCSI adapter (ARO)",
577 		ahc_aic7899_setup
578 	},
579 	/* Generic chip probes for devices we don't know 'exactly' */
580 	{
581 		ID_AIC7850 & ID_DEV_VENDOR_MASK,
582 		ID_DEV_VENDOR_MASK,
583 		"Adaptec aic7850 SCSI adapter",
584 		ahc_aic785X_setup
585 	},
586 	{
587 		ID_AIC7855 & ID_DEV_VENDOR_MASK,
588 		ID_DEV_VENDOR_MASK,
589 		"Adaptec aic7855 SCSI adapter",
590 		ahc_aic785X_setup
591 	},
592 	{
593 		ID_AIC7859 & ID_DEV_VENDOR_MASK,
594 		ID_DEV_VENDOR_MASK,
595 		"Adaptec aic7859 SCSI adapter",
596 		ahc_aic7860_setup
597 	},
598 	{
599 		ID_AIC7860 & ID_DEV_VENDOR_MASK,
600 		ID_DEV_VENDOR_MASK,
601 		"Adaptec aic7860 Ultra SCSI adapter",
602 		ahc_aic7860_setup
603 	},
604 	{
605 		ID_AIC7870 & ID_DEV_VENDOR_MASK,
606 		ID_DEV_VENDOR_MASK,
607 		"Adaptec aic7870 SCSI adapter",
608 		ahc_aic7870_setup
609 	},
610 	{
611 		ID_AIC7880 & ID_DEV_VENDOR_MASK,
612 		ID_DEV_VENDOR_MASK,
613 		"Adaptec aic7880 Ultra SCSI adapter",
614 		ahc_aic7880_setup
615 	},
616 	{
617 		ID_AIC7890 & ID_9005_GENERIC_MASK,
618 		ID_9005_GENERIC_MASK,
619 		"Adaptec aic7890/91 Ultra2 SCSI adapter",
620 		ahc_aic7890_setup
621 	},
622 	{
623 		ID_AIC7892 & ID_9005_GENERIC_MASK,
624 		ID_9005_GENERIC_MASK,
625 		"Adaptec aic7892 Ultra160 SCSI adapter",
626 		ahc_aic7892_setup
627 	},
628 	{
629 		ID_AIC7895 & ID_DEV_VENDOR_MASK,
630 		ID_DEV_VENDOR_MASK,
631 		"Adaptec aic7895 Ultra SCSI adapter",
632 		ahc_aic7895_setup
633 	},
634 	{
635 		ID_AIC7896 & ID_9005_GENERIC_MASK,
636 		ID_9005_GENERIC_MASK,
637 		"Adaptec aic7896/97 Ultra2 SCSI adapter",
638 		ahc_aic7896_setup
639 	},
640 	{
641 		ID_AIC7899 & ID_9005_GENERIC_MASK,
642 		ID_9005_GENERIC_MASK,
643 		"Adaptec aic7899 Ultra160 SCSI adapter",
644 		ahc_aic7899_setup
645 	},
646 	{
647 		ID_AIC7810 & ID_DEV_VENDOR_MASK,
648 		ID_DEV_VENDOR_MASK,
649 		"Adaptec aic7810 RAID memory controller",
650 		ahc_raid_setup
651 	},
652 	{
653 		ID_AIC7815 & ID_DEV_VENDOR_MASK,
654 		ID_DEV_VENDOR_MASK,
655 		"Adaptec aic7815 RAID memory controller",
656 		ahc_raid_setup
657 	}
658 };
659 
660 static const u_int ahc_num_pci_devs = NUM_ELEMENTS(ahc_pci_ident_table);
661 
662 #define AHC_394X_SLOT_CHANNEL_A	4
663 #define AHC_394X_SLOT_CHANNEL_B	5
664 
665 #define AHC_398X_SLOT_CHANNEL_A	4
666 #define AHC_398X_SLOT_CHANNEL_B	8
667 #define AHC_398X_SLOT_CHANNEL_C	12
668 
669 #define AHC_494X_SLOT_CHANNEL_A	4
670 #define AHC_494X_SLOT_CHANNEL_B	5
671 #define AHC_494X_SLOT_CHANNEL_C	6
672 #define AHC_494X_SLOT_CHANNEL_D	7
673 
674 #define	DEVCONFIG		0x40
675 #define		PCIERRGENDIS	0x80000000ul
676 #define		SCBSIZE32	0x00010000ul	/* aic789X only */
677 #define		REXTVALID	0x00001000ul	/* ultra cards only */
678 #define		MPORTMODE	0x00000400ul	/* aic7870+ only */
679 #define		RAMPSM		0x00000200ul	/* aic7870+ only */
680 #define		VOLSENSE	0x00000100ul
681 #define		PCI64BIT	0x00000080ul	/* 64Bit PCI bus (Ultra2 Only)*/
682 #define		SCBRAMSEL	0x00000080ul
683 #define		MRDCEN		0x00000040ul
684 #define		EXTSCBTIME	0x00000020ul	/* aic7870 only */
685 #define		EXTSCBPEN	0x00000010ul	/* aic7870 only */
686 #define		BERREN		0x00000008ul
687 #define		DACEN		0x00000004ul
688 #define		STPWLEVEL	0x00000002ul
689 #define		DIFACTNEGEN	0x00000001ul	/* aic7870 only */
690 
691 #define	CSIZE_LATTIME		0x0c
692 #define		CACHESIZE	0x0000003ful	/* only 5 bits */
693 #define		LATTIME		0x0000ff00ul
694 
695 /* PCI STATUS definitions */
696 #define	DPE	0x80
697 #define SSE	0x40
698 #define	RMA	0x20
699 #define	RTA	0x10
700 #define STA	0x08
701 #define DPR	0x01
702 
703 static int ahc_9005_subdevinfo_valid(uint16_t vendor, uint16_t device,
704 				     uint16_t subvendor, uint16_t subdevice);
705 static int ahc_ext_scbram_present(struct ahc_softc *ahc);
706 static void ahc_scbram_config(struct ahc_softc *ahc, int enable,
707 				  int pcheck, int fast, int large);
708 static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
709 
710 static void ahc_pci_intr(struct ahc_softc *);
711 
712 static const struct ahc_pci_identity *
713 ahc_find_pci_device(pcireg_t id, pcireg_t subid, u_int func)
714 {
715 	u_int64_t  full_id;
716 	const struct	   ahc_pci_identity *entry;
717 	u_int	   i;
718 
719 	full_id = ahc_compose_id(PCI_PRODUCT(id), PCI_VENDOR(id),
720 				 PCI_PRODUCT(subid), PCI_VENDOR(subid));
721 
722 	/*
723 	 * If the second function is not hooked up, ignore it.
724 	 * Unfortunately, not all MB vendors implement the
725 	 * subdevice ID as per the Adaptec spec, so do our best
726 	 * to sanity check it prior to accepting the subdevice
727 	 * ID as valid.
728 	 */
729 	if (func > 0
730 	    && ahc_9005_subdevinfo_valid(PCI_VENDOR(id), PCI_PRODUCT(id),
731 					 PCI_VENDOR(subid), PCI_PRODUCT(subid))
732 	    && SUBID_9005_MFUNCENB(PCI_PRODUCT(subid)) == 0)
733 		return (NULL);
734 
735 	for (i = 0; i < ahc_num_pci_devs; i++) {
736 		entry = &ahc_pci_ident_table[i];
737 		if (entry->full_id == (full_id & entry->id_mask))
738 			return (entry);
739 	}
740 	return (NULL);
741 }
742 
743 static int
744 ahc_pci_probe(device_t parent, cfdata_t match, void *aux)
745 {
746 	struct pci_attach_args *pa = aux;
747 	const struct	   ahc_pci_identity *entry;
748 	pcireg_t   subid;
749 
750 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
751 	entry = ahc_find_pci_device(pa->pa_id, subid, pa->pa_function);
752 	return (entry != NULL && entry->setup != NULL) ? 1 : 0;
753 }
754 
755 static void
756 ahc_pci_attach(device_t parent, device_t self, void *aux)
757 {
758 	struct pci_attach_args *pa = aux;
759 	const struct	   ahc_pci_identity *entry;
760 	struct		   ahc_softc *ahc = device_private(self);
761 	pcireg_t	   command;
762 	u_int		   our_id = 0;
763 	u_int		   sxfrctl1;
764 	u_int		   scsiseq;
765 	u_int		   sblkctl;
766 	uint8_t 	   dscommand0;
767 	uint32_t	   devconfig;
768 	int		   error;
769 	pcireg_t	   subid;
770 	int		   ioh_valid;
771 	bus_space_tag_t    st, iot;
772 	bus_space_handle_t sh, ioh;
773 #ifdef AHC_ALLOW_MEMIO
774 	int		   memh_valid;
775 	bus_space_tag_t    memt;
776 	bus_space_handle_t memh;
777 	pcireg_t memtype;
778 #endif
779 	pci_intr_handle_t  ih;
780 	const char        *intrstr;
781 	struct ahc_pci_busdata *bd;
782 	bool               override_ultra;
783 	char intrbuf[PCI_INTRSTR_LEN];
784 
785 	ahc->sc_dev = self;
786 	ahc_set_name(ahc, device_xname(ahc->sc_dev));
787 	ahc->parent_dmat = pa->pa_dmat;
788 
789 	command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
790 	subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
791 	entry = ahc_find_pci_device(pa->pa_id, subid, pa->pa_function);
792 	if (entry == NULL)
793 		return;
794 	aprint_naive("\n");
795 	aprint_normal(": %s\n", entry->name);
796 
797 	/* Keep information about the PCI bus */
798 	bd = malloc(sizeof (struct ahc_pci_busdata), M_DEVBUF, M_NOWAIT);
799 	if (bd == NULL) {
800 		aprint_error("%s: unable to allocate bus-specific data\n",
801 		    ahc_name(ahc));
802 		return;
803 	}
804 	memset(bd, 0, sizeof(struct ahc_pci_busdata));
805 
806 	bd->pc = pa->pa_pc;
807 	bd->tag = pa->pa_tag;
808 	bd->func = pa->pa_function;
809 	bd->dev = pa->pa_device;
810 	bd->class = pa->pa_class;
811 
812 	ahc->bd = bd;
813 
814 	ahc->description = entry->name;
815 
816 	error = entry->setup(ahc);
817 	if (error != 0)
818 		return;
819 
820 	ioh_valid = 0;
821 
822 #ifdef AHC_ALLOW_MEMIO
823 	memh_valid = 0;
824 	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, AHC_PCI_MEMADDR);
825 	switch (memtype) {
826 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
827 	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
828 		memh_valid = (pci_mapreg_map(pa, AHC_PCI_MEMADDR,
829 			memtype, 0, &memt, &memh, NULL, NULL) == 0);
830 		break;
831 	default:
832 		memh_valid = 0;
833 	}
834 #endif
835 	ioh_valid = (pci_mapreg_map(pa, AHC_PCI_IOADDR,
836 				    PCI_MAPREG_TYPE_IO, 0, &iot,
837 				    &ioh, NULL, NULL) == 0);
838 
839 #if 0
840 	printf("%s: bus info: memt 0x%lx, memh 0x%lx, iot 0x%lx, ioh 0x%lx\n",
841 	    ahc_name(ahc), (u_long)memt, (u_long)memh, (u_long)iot,
842 	    (u_long)ioh);
843 #endif
844 
845 #ifdef AHC_ALLOW_MEMIO
846 	if (memh_valid) {
847 		st = memt;
848 		sh = memh;
849 	} else
850 #endif
851 	if (ioh_valid) {
852 		st = iot;
853 		sh = ioh;
854 	} else {
855 		aprint_error(": unable to map registers\n");
856 		return;
857 	}
858 	ahc->tag = st;
859 	ahc->bsh = sh;
860 
861 	ahc->chip |= AHC_PCI;
862 	/*
863 	 * Before we continue probing the card, ensure that
864 	 * its interrupts are *disabled*.  We don't want
865 	 * a misstep to hang the machine in an interrupt
866 	 * storm.
867 	 */
868 	ahc_intr_enable(ahc, FALSE);
869 
870 	/*
871 	 * XXX somehow reading this once fails on some sparc64 systems.
872 	 *     This may be a problem in the sparc64 PCI code. Doing it
873 	 *     twice works around it.
874 	 */
875 	devconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
876 	devconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
877 
878 	/*
879 	 * If we need to support high memory, enable dual
880 	 * address cycles.  This bit must be set to enable
881 	 * high address bit generation even if we are on a
882 	 * 64bit bus (PCI64BIT set in devconfig).
883 	 */
884 	if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) {
885 
886 		if (1/*bootverbose*/)
887 			aprint_normal("%s: Enabling 39Bit Addressing\n",
888 			       ahc_name(ahc));
889 		devconfig |= DACEN;
890 	}
891 
892 	/* Ensure that pci error generation, a test feature, is disabled. */
893 	devconfig |= PCIERRGENDIS;
894 
895 	pci_conf_write(pa->pa_pc, pa->pa_tag, DEVCONFIG, devconfig);
896 
897 	/* Ensure busmastering is enabled */
898 	command |= PCI_COMMAND_MASTER_ENABLE;
899 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
900 
901 	/*
902 	 * Disable PCI parity error reporting.  Users typically
903 	 * do this to work around broken PCI chipsets that get
904 	 * the parity timing wrong and thus generate lots of spurious
905 	 * errors.
906 	 */
907 	if ((ahc->flags & AHC_DISABLE_PCI_PERR) != 0)
908 	  command &= ~PCI_COMMAND_PARITY_ENABLE;
909 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
910 
911 	/* On all PCI adapters, we allow SCB paging */
912 	ahc->flags |= AHC_PAGESCBS;
913 	error = ahc_softc_init(ahc);
914 	if (error != 0)
915 		goto error_out;
916 
917 	ahc->bus_intr = ahc_pci_intr;
918 
919 	/* Remember how the card was setup in case there is no SEEPROM */
920 	if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) {
921 		ahc_pause(ahc);
922 		if ((ahc->features & AHC_ULTRA2) != 0)
923 			our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
924 		else
925 			our_id = ahc_inb(ahc, SCSIID) & OID;
926 		sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
927 		scsiseq = ahc_inb(ahc, SCSISEQ);
928 	} else {
929 		sxfrctl1 = STPWEN;
930 		our_id = 7;
931 		scsiseq = 0;
932 	}
933 
934 	error = ahc_reset(ahc);
935 	if (error != 0)
936 		goto error_out;
937 
938 	if ((ahc->features & AHC_DT) != 0) {
939 		u_int sfunct;
940 
941 		/* Perform ALT-Mode Setup */
942 		sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
943 		ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
944 		ahc_outb(ahc, OPTIONMODE,
945 			 OPTIONMODE_DEFAULTS|AUTOACKEN|BUSFREEREV|EXPPHASEDIS);
946 		ahc_outb(ahc, SFUNCT, sfunct);
947 
948 		/* Normal mode setup */
949 		ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
950 					  |TARGCRCENDEN);
951 	}
952 
953 	if (pci_intr_map(pa, &ih)) {
954 		aprint_error("%s: couldn't map interrupt\n", ahc_name(ahc));
955 		ahc_free(ahc);
956 		return;
957 	}
958 	intrstr = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf));
959 	ahc->ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, ahc_intr, ahc);
960 	if (ahc->ih == NULL) {
961 		aprint_error_dev(ahc->sc_dev,
962 		    "couldn't establish interrupt\n");
963 		if (intrstr != NULL)
964 			aprint_error(" at %s", intrstr);
965 		aprint_error("\n");
966 		ahc_free(ahc);
967 		return;
968 	}
969 	if (intrstr != NULL)
970 		aprint_normal("%s: interrupting at %s\n", ahc_name(ahc),
971 		    intrstr);
972 
973 	dscommand0 = ahc_inb(ahc, DSCOMMAND0);
974 	dscommand0 |= MPARCKEN|CACHETHEN;
975 	if ((ahc->features & AHC_ULTRA2) != 0) {
976 
977 		/*
978 		 * DPARCKEN doesn't work correctly on
979 		 * some MBs so don't use it.
980 		 */
981 		dscommand0 &= ~DPARCKEN;
982 	}
983 
984 	/*
985 	 * Handle chips that must have cache line
986 	 * streaming (dis/en)abled.
987 	 */
988 	if ((ahc->bugs & AHC_CACHETHEN_DIS_BUG) != 0)
989 		dscommand0 |= CACHETHEN;
990 
991 	if ((ahc->bugs & AHC_CACHETHEN_BUG) != 0)
992 		dscommand0 &= ~CACHETHEN;
993 
994 	ahc_outb(ahc, DSCOMMAND0, dscommand0);
995 
996 	ahc->pci_cachesize =
997 	    pci_conf_read(pa->pa_pc, pa->pa_tag, CSIZE_LATTIME) & CACHESIZE;
998 	ahc->pci_cachesize *= 4;
999 
1000 	if ((ahc->bugs & AHC_PCI_2_1_RETRY_BUG) != 0
1001 	    && ahc->pci_cachesize == 4) {
1002 		pci_conf_write(pa->pa_pc, pa->pa_tag, CSIZE_LATTIME, 0);
1003 		ahc->pci_cachesize = 0;
1004 	}
1005 
1006 	/*
1007 	 * We cannot perform ULTRA speeds without the presence
1008 	 * of the external precision resistor.
1009 	 * Allow override for the SGI O2 though, which has two onboard ahc
1010 	 * that fail here but are perfectly capable of ultra speeds.
1011 	 */
1012 	override_ultra = FALSE;
1013 	prop_dictionary_get_bool(device_properties(self),
1014 	    "aic7xxx-override-ultra", &override_ultra);
1015 
1016 	if (((ahc->features & AHC_ULTRA) != 0) && (!override_ultra)) {
1017 		uint32_t dvconfig;
1018 
1019 		dvconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
1020 		if ((dvconfig & REXTVALID) == 0)
1021 			ahc->features &= ~AHC_ULTRA;
1022 	}
1023 
1024 	ahc->seep_config = malloc(sizeof(*ahc->seep_config),
1025 				  M_DEVBUF, M_NOWAIT);
1026 	if (ahc->seep_config == NULL)
1027 		goto error_out;
1028 
1029 	memset(ahc->seep_config, 0, sizeof(*ahc->seep_config));
1030 
1031 	/* See if we have a SEEPROM and perform auto-term */
1032 	ahc_check_extport(ahc, &sxfrctl1);
1033 
1034 	/*
1035 	 * Take the LED out of diagnostic mode
1036 	 */
1037 	sblkctl = ahc_inb(ahc, SBLKCTL);
1038 	ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
1039 
1040 	if ((ahc->features & AHC_ULTRA2) != 0) {
1041 		ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MAX|WR_DFTHRSH_MAX);
1042 	} else {
1043 		ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
1044 	}
1045 
1046 	if (ahc->flags & AHC_USEDEFAULTS) {
1047 		/*
1048 		 * PCI Adapter default setup
1049 		 * Should only be used if the adapter does not have
1050 		 * a SEEPROM.
1051 		 */
1052 		/* See if someone else set us up already */
1053 		if ((ahc->flags & AHC_NO_BIOS_INIT) == 0
1054 		 && scsiseq != 0) {
1055 			prop_bool_t usetd;
1056 
1057 			printf("%s: Using left over BIOS settings\n",
1058 				ahc_name(ahc));
1059 			ahc->flags &= ~AHC_USEDEFAULTS;
1060 			/*
1061 			 * Ignore target device settings and use default
1062 			 * if BIOS initializes chip's SRAM with some
1063 			 * conservative settings (async, no tagged
1064 			 * queuing etc.) and machine dependent device
1065 			 * property is set.
1066 			 */
1067 			usetd = prop_dictionary_get(
1068 					device_properties(ahc->sc_dev),
1069 					"aic7xxx-use-target-defaults");
1070 			if (usetd != NULL) {
1071 				KASSERT(prop_object_type(usetd) ==
1072 					PROP_TYPE_BOOL);
1073 				if (prop_bool_true(usetd))
1074 					ahc->flags |= AHC_USETARGETDEFAULTS;
1075 			}
1076 			ahc->flags |= AHC_BIOS_ENABLED;
1077 		} else {
1078 			/*
1079 			 * Assume only one connector and always turn
1080 			 * on termination.
1081 			 */
1082  			our_id = 0x07;
1083 			sxfrctl1 = STPWEN;
1084 		}
1085 		ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
1086 
1087 		ahc->our_id = our_id;
1088 	}
1089 
1090 	/*
1091 	 * Take a look to see if we have external SRAM.
1092 	 * We currently do not attempt to use SRAM that is
1093 	 * shared among multiple controllers.
1094 	 */
1095 	ahc_probe_ext_scbram(ahc);
1096 
1097 	/*
1098 	 * Record our termination setting for the
1099 	 * generic initialization routine.
1100 	 */
1101 	if ((sxfrctl1 & STPWEN) != 0)
1102 		ahc->flags |= AHC_TERM_ENB_A;
1103 
1104 	if (ahc_init(ahc))
1105 		goto error_out;
1106 
1107 	ahc_attach(ahc);
1108 
1109 	return;
1110 
1111  error_out:
1112 	ahc_free(ahc);
1113 	return;
1114 }
1115 
1116 CFATTACH_DECL_NEW(ahc_pci, sizeof(struct ahc_softc),
1117     ahc_pci_probe, ahc_pci_attach, NULL, NULL);
1118 
1119 static int
1120 ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor,
1121 			  uint16_t subdevice, uint16_t subvendor)
1122 {
1123 	int result;
1124 
1125 	/* Default to invalid. */
1126 	result = 0;
1127 	if (vendor == 0x9005
1128 	 && subvendor == 0x9005
1129          && subdevice != device
1130          && SUBID_9005_TYPE_KNOWN(subdevice) != 0) {
1131 
1132 		switch (SUBID_9005_TYPE(subdevice)) {
1133 		case SUBID_9005_TYPE_MB:
1134 			break;
1135 		case SUBID_9005_TYPE_CARD:
1136 		case SUBID_9005_TYPE_LCCARD:
1137 			/*
1138 			 * Currently only trust Adaptec cards to
1139 			 * get the sub device info correct.
1140 			 */
1141 			if (DEVID_9005_TYPE(device) == DEVID_9005_TYPE_HBA)
1142 				result = 1;
1143 			break;
1144 		case SUBID_9005_TYPE_RAID:
1145 			break;
1146 		default:
1147 			break;
1148 		}
1149 	}
1150 	return (result);
1151 }
1152 
1153 
1154 /*
1155  * Test for the presense of external sram in an
1156  * "unshared" configuration.
1157  */
1158 static int
1159 ahc_ext_scbram_present(struct ahc_softc *ahc)
1160 {
1161 	u_int chip;
1162 	int ramps;
1163 	int single_user;
1164 	uint32_t devconfig;
1165 
1166 	chip = ahc->chip & AHC_CHIPID_MASK;
1167 	devconfig = pci_conf_read(ahc->bd->pc, ahc->bd->tag, DEVCONFIG);
1168 	single_user = (devconfig & MPORTMODE) != 0;
1169 
1170 	if ((ahc->features & AHC_ULTRA2) != 0)
1171 		ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
1172 	else if (chip == AHC_AIC7895 || chip == AHC_AIC7895C)
1173 		/*
1174 		 * External SCBRAM arbitration is flakey
1175 		 * on these chips.  Unfortunately this means
1176 		 * we don't use the extra SCB ram space on the
1177 		 * 3940AUW.
1178 		 */
1179 		ramps = 0;
1180 	else if (chip >= AHC_AIC7870)
1181 		ramps = (devconfig & RAMPSM) != 0;
1182 	else
1183 		ramps = 0;
1184 
1185 	if (ramps && single_user)
1186 		return (1);
1187 	return (0);
1188 }
1189 
1190 /*
1191  * Enable external scbram.
1192  */
1193 static void
1194 ahc_scbram_config(struct ahc_softc *ahc, int enable, int pcheck,
1195 		  int fast, int large)
1196 {
1197 	uint32_t devconfig;
1198 
1199 	if (ahc->features & AHC_MULTI_FUNC) {
1200 		/*
1201 		 * Set the SCB Base addr (highest address bit)
1202 		 * depending on which channel we are.
1203 		 */
1204 		ahc_outb(ahc, SCBBADDR, ahc->bd->func);
1205 	}
1206 
1207 	ahc->flags &= ~AHC_LSCBS_ENABLED;
1208 	if (large)
1209 		ahc->flags |= AHC_LSCBS_ENABLED;
1210 	devconfig = pci_conf_read(ahc->bd->pc, ahc->bd->tag, DEVCONFIG);
1211 	if ((ahc->features & AHC_ULTRA2) != 0) {
1212 		u_int dscommand0;
1213 
1214 		dscommand0 = ahc_inb(ahc, DSCOMMAND0);
1215 		if (enable)
1216 			dscommand0 &= ~INTSCBRAMSEL;
1217 		else
1218 			dscommand0 |= INTSCBRAMSEL;
1219 		if (large)
1220 			dscommand0 &= ~USCBSIZE32;
1221 		else
1222 			dscommand0 |= USCBSIZE32;
1223 		ahc_outb(ahc, DSCOMMAND0, dscommand0);
1224 	} else {
1225 		if (fast)
1226 			devconfig &= ~EXTSCBTIME;
1227 		else
1228 			devconfig |= EXTSCBTIME;
1229 		if (enable)
1230 			devconfig &= ~SCBRAMSEL;
1231 		else
1232 			devconfig |= SCBRAMSEL;
1233 		if (large)
1234 			devconfig &= ~SCBSIZE32;
1235 		else
1236 			devconfig |= SCBSIZE32;
1237 	}
1238 	if (pcheck)
1239 		devconfig |= EXTSCBPEN;
1240 	else
1241 		devconfig &= ~EXTSCBPEN;
1242 
1243 	pci_conf_write(ahc->bd->pc, ahc->bd->tag, DEVCONFIG, devconfig);
1244 }
1245 
1246 /*
1247  * Take a look to see if we have external SRAM.
1248  * We currently do not attempt to use SRAM that is
1249  * shared among multiple controllers.
1250  */
1251 static void
1252 ahc_probe_ext_scbram(struct ahc_softc *ahc)
1253 {
1254 	int num_scbs;
1255 	int test_num_scbs;
1256 	int enable;
1257 	int pcheck;
1258 	int fast;
1259 	int large;
1260 
1261 	enable = FALSE;
1262 	pcheck = FALSE;
1263 	fast = FALSE;
1264 	large = FALSE;
1265 	num_scbs = 0;
1266 
1267 	if (ahc_ext_scbram_present(ahc) == 0)
1268 		goto done;
1269 
1270 	/*
1271 	 * Probe for the best parameters to use.
1272 	 */
1273 	ahc_scbram_config(ahc, /*enable*/TRUE, pcheck, fast, large);
1274 	num_scbs = ahc_probe_scbs(ahc);
1275 	if (num_scbs == 0) {
1276 		/* The SRAM wasn't really present. */
1277 		goto done;
1278 	}
1279 	enable = TRUE;
1280 
1281 	/*
1282 	 * Clear any outstanding parity error
1283 	 * and ensure that parity error reporting
1284 	 * is enabled.
1285 	 */
1286 	ahc_outb(ahc, SEQCTL, 0);
1287 	ahc_outb(ahc, CLRINT, CLRPARERR);
1288 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1289 
1290 	/* Now see if we can do parity */
1291 	ahc_scbram_config(ahc, enable, /*pcheck*/TRUE, fast, large);
1292 	num_scbs = ahc_probe_scbs(ahc);
1293 	if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
1294 	 || (ahc_inb(ahc, ERROR) & MPARERR) == 0)
1295 		pcheck = TRUE;
1296 
1297 	/* Clear any resulting parity error */
1298 	ahc_outb(ahc, CLRINT, CLRPARERR);
1299 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1300 
1301 	/* Now see if we can do fast timing */
1302 	ahc_scbram_config(ahc, enable, pcheck, /*fast*/TRUE, large);
1303 	test_num_scbs = ahc_probe_scbs(ahc);
1304 	if (test_num_scbs == num_scbs
1305 	 && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
1306 	  || (ahc_inb(ahc, ERROR) & MPARERR) == 0))
1307 		fast = TRUE;
1308 
1309 	/*
1310 	 * See if we can use large SCBs and still maintain
1311 	 * the same overall count of SCBs.
1312 	 */
1313 	if ((ahc->features & AHC_LARGE_SCBS) != 0) {
1314 		ahc_scbram_config(ahc, enable, pcheck, fast, /*large*/TRUE);
1315 		test_num_scbs = ahc_probe_scbs(ahc);
1316 		if (test_num_scbs >= num_scbs) {
1317 			large = TRUE;
1318 			num_scbs = test_num_scbs;
1319 	 		if (num_scbs >= 64) {
1320 				/*
1321 				 * We have enough space to move the
1322 				 * "busy targets table" into SCB space
1323 				 * and make it qualify all the way to the
1324 				 * lun level.
1325 				 */
1326 				ahc->flags |= AHC_SCB_BTT;
1327 			}
1328 		}
1329 	}
1330 done:
1331 	/*
1332 	 * Disable parity error reporting until we
1333 	 * can load instruction ram.
1334 	 */
1335 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
1336 	/* Clear any latched parity error */
1337 	ahc_outb(ahc, CLRINT, CLRPARERR);
1338 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1339 	if (1/*bootverbose*/ && enable) {
1340 		printf("%s: External SRAM, %s access%s, %dbytes/SCB\n",
1341 		       ahc_name(ahc), fast ? "fast" : "slow",
1342 		       pcheck ? ", parity checking enabled" : "",
1343 		       large ? 64 : 32);
1344 	}
1345 	ahc_scbram_config(ahc, enable, pcheck, fast, large);
1346 }
1347 
1348 #if 0
1349 /*
1350  * Perform some simple tests that should catch situations where
1351  * our registers are invalidly mapped.
1352  */
1353 static int
1354 ahc_pci_test_register_access(struct ahc_softc *ahc)
1355 {
1356 	int	 error;
1357 	u_int	 status1;
1358 	uint32_t cmd;
1359 	uint8_t	 hcntrl;
1360 
1361 	error = EIO;
1362 
1363 	/*
1364 	 * Enable PCI error interrupt status, but suppress NMIs
1365 	 * generated by SERR raised due to target aborts.
1366 	 */
1367 	cmd = pci_conf_read(ahc->bd->pc, ahc->bd->tag, PCIR_COMMAND);
1368 	pci_conf_write(ahc->bd->pc, ahc->bd->tag, PCIR_COMMAND,
1369 		       cmd & ~PCIM_CMD_SERRESPEN);
1370 
1371 	/*
1372 	 * First a simple test to see if any
1373 	 * registers can be read.  Reading
1374 	 * HCNTRL has no side effects and has
1375 	 * at least one bit that is guaranteed to
1376 	 * be zero so it is a good register to
1377 	 * use for this test.
1378 	 */
1379 	hcntrl = ahc_inb(ahc, HCNTRL);
1380 	if (hcntrl == 0xFF)
1381 		goto fail;
1382 
1383 	/*
1384 	 * Next create a situation where write combining
1385 	 * or read prefetching could be initiated by the
1386 	 * CPU or host bridge.  Our device does not support
1387 	 * either, so look for data corruption and/or flagged
1388 	 * PCI errors.
1389 	 */
1390 	ahc_outb(ahc, HCNTRL, hcntrl|PAUSE);
1391 	while (ahc_is_paused(ahc) == 0)
1392 		;
1393 	ahc_outb(ahc, SEQCTL, PERRORDIS);
1394 	ahc_outb(ahc, SCBPTR, 0);
1395 	ahc_outl(ahc, SCB_BASE, 0x5aa555aa);
1396 	if (ahc_inl(ahc, SCB_BASE) != 0x5aa555aa)
1397 		goto fail;
1398 
1399 	status1 = pci_conf_read(ahc->bd->pc, ahc->bd->tag,
1400 				PCI_COMMAND_STATUS_REG + 1);
1401 	if ((status1 & STA) != 0)
1402 		goto fail;
1403 
1404 	error = 0;
1405 
1406 fail:
1407 	/* Silently clear any latched errors. */
1408 	status1 = pci_conf_read(ahc->bd->pc, ahc->bd->tag,
1409 	    PCI_COMMAND_STATUS_REG + 1);
1410 	ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
1411 			     status1, /*bytes*/1);
1412 	ahc_outb(ahc, CLRINT, CLRPARERR);
1413 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
1414 	ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
1415 	return (error);
1416 }
1417 #endif
1418 
1419 static void
1420 ahc_pci_intr(struct ahc_softc *ahc)
1421 {
1422 	u_int error;
1423 	u_int status1;
1424 
1425 	error = ahc_inb(ahc, ERROR);
1426 	if ((error & PCIERRSTAT) == 0)
1427 		return;
1428 
1429 	status1 = pci_conf_read(ahc->bd->pc, ahc->bd->tag,
1430 	    PCI_COMMAND_STATUS_REG);
1431 
1432 	printf("%s: PCI error Interrupt at seqaddr = 0x%x\n",
1433 	      ahc_name(ahc),
1434 	      ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8));
1435 
1436 	if (status1 & DPE) {
1437 		printf("%s: Data Parity Error Detected during address "
1438 		       "or write data phase\n", ahc_name(ahc));
1439 	}
1440 	if (status1 & SSE) {
1441 		printf("%s: Signal System Error Detected\n", ahc_name(ahc));
1442 	}
1443 	if (status1 & RMA) {
1444 		printf("%s: Received a Master Abort\n", ahc_name(ahc));
1445 	}
1446 	if (status1 & RTA) {
1447 		printf("%s: Received a Target Abort\n", ahc_name(ahc));
1448 	}
1449 	if (status1 & STA) {
1450 		printf("%s: Signaled a Target Abort\n", ahc_name(ahc));
1451 	}
1452 	if (status1 & DPR) {
1453 		printf("%s: Data Parity Error has been reported via PERR#\n",
1454 		       ahc_name(ahc));
1455 	}
1456 
1457 	/* Clear latched errors. */
1458 	pci_conf_write(ahc->bd->pc, ahc->bd->tag,  PCI_COMMAND_STATUS_REG,
1459 	    status1);
1460 
1461 	if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
1462 		printf("%s: Latched PCIERR interrupt with "
1463 		       "no status bits set\n", ahc_name(ahc));
1464 	} else {
1465 		ahc_outb(ahc, CLRINT, CLRPARERR);
1466 	}
1467 
1468 	ahc_unpause(ahc);
1469 }
1470 
1471 static int
1472 ahc_aic785X_setup(struct ahc_softc *ahc)
1473 {
1474 	uint8_t rev;
1475 
1476 	ahc->channel = 'A';
1477 	ahc->chip = AHC_AIC7850;
1478 	ahc->features = AHC_AIC7850_FE;
1479 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
1480 	rev = PCI_REVISION(ahc->bd->class);
1481 	if (rev >= 1)
1482 		ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
1483 	return (0);
1484 }
1485 
1486 static int
1487 ahc_aic7860_setup(struct ahc_softc *ahc)
1488 {
1489 	uint8_t rev;
1490 
1491 	ahc->channel = 'A';
1492 	ahc->chip = AHC_AIC7860;
1493 	ahc->features = AHC_AIC7860_FE;
1494 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
1495 	rev = PCI_REVISION(ahc->bd->class);
1496 	if (rev >= 1)
1497 		ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
1498 	return (0);
1499 }
1500 
1501 static int
1502 ahc_apa1480_setup(struct ahc_softc *ahc)
1503 {
1504 	int error;
1505 
1506 	error = ahc_aic7860_setup(ahc);
1507 	if (error != 0)
1508 		return (error);
1509 	ahc->features |= AHC_REMOVABLE;
1510 	return (0);
1511 }
1512 
1513 static int
1514 ahc_aic7870_setup(struct ahc_softc *ahc)
1515 {
1516 
1517 	ahc->channel = 'A';
1518 	ahc->chip = AHC_AIC7870;
1519 	ahc->features = AHC_AIC7870_FE;
1520 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
1521 	return (0);
1522 }
1523 
1524 static int
1525 ahc_aha394X_setup(struct ahc_softc *ahc)
1526 {
1527 	int error;
1528 
1529 	error = ahc_aic7870_setup(ahc);
1530 	if (error == 0)
1531 		error = ahc_aha394XX_setup(ahc);
1532 	return (error);
1533 }
1534 
1535 static int
1536 ahc_aha398X_setup(struct ahc_softc *ahc)
1537 {
1538 	int error;
1539 
1540 	error = ahc_aic7870_setup(ahc);
1541 	if (error == 0)
1542 		error = ahc_aha398XX_setup(ahc);
1543 	return (error);
1544 }
1545 
1546 static int
1547 ahc_aha494X_setup(struct ahc_softc *ahc)
1548 {
1549 	int error;
1550 
1551 	error = ahc_aic7870_setup(ahc);
1552 	if (error == 0)
1553 		error = ahc_aha494XX_setup(ahc);
1554 	return (error);
1555 }
1556 
1557 static int
1558 ahc_aic7880_setup(struct ahc_softc *ahc)
1559 {
1560 	uint8_t rev;
1561 
1562 	ahc->channel = 'A';
1563 	ahc->chip = AHC_AIC7880;
1564 	ahc->features = AHC_AIC7880_FE;
1565 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
1566 	rev = PCI_REVISION(ahc->bd->class);
1567 	if (rev >= 1) {
1568 		ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
1569 	} else {
1570 		ahc->bugs |= AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
1571 	}
1572 	return (0);
1573 }
1574 
1575 static int
1576 ahc_aha2940Pro_setup(struct ahc_softc *ahc)
1577 {
1578 
1579 	ahc->flags |= AHC_INT50_SPEEDFLEX;
1580 	return (ahc_aic7880_setup(ahc));
1581 }
1582 
1583 static int
1584 ahc_aha394XU_setup(struct ahc_softc *ahc)
1585 {
1586 	int error;
1587 
1588 	error = ahc_aic7880_setup(ahc);
1589 	if (error == 0)
1590 		error = ahc_aha394XX_setup(ahc);
1591 	return (error);
1592 }
1593 
1594 static int
1595 ahc_aha398XU_setup(struct ahc_softc *ahc)
1596 {
1597 	int error;
1598 
1599 	error = ahc_aic7880_setup(ahc);
1600 	if (error == 0)
1601 		error = ahc_aha398XX_setup(ahc);
1602 	return (error);
1603 }
1604 
1605 static int
1606 ahc_aic7890_setup(struct ahc_softc *ahc)
1607 {
1608 	uint8_t rev;
1609 
1610 	ahc->channel = 'A';
1611 	ahc->chip = AHC_AIC7890;
1612 	ahc->features = AHC_AIC7890_FE;
1613 	ahc->flags |= AHC_NEWEEPROM_FMT;
1614 	rev = PCI_REVISION(ahc->bd->class);
1615 	if (rev == 0)
1616 		ahc->bugs |= AHC_AUTOFLUSH_BUG|AHC_CACHETHEN_BUG;
1617 	return (0);
1618 }
1619 
1620 static int
1621 ahc_aic7892_setup(struct ahc_softc *ahc)
1622 {
1623 
1624 	ahc->channel = 'A';
1625 	ahc->chip = AHC_AIC7892;
1626 	ahc->features = AHC_AIC7892_FE;
1627 	ahc->flags |= AHC_NEWEEPROM_FMT;
1628 	ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
1629 	return (0);
1630 }
1631 
1632 static int
1633 ahc_aic7895_setup(struct ahc_softc *ahc)
1634 {
1635 	uint8_t rev;
1636 
1637 	ahc->channel = (ahc->bd->func == 1) ? 'B' : 'A';
1638 	/*
1639 	 * The 'C' revision of the aic7895 has a few additional features.
1640 	 */
1641 	rev = PCI_REVISION(ahc->bd->class);
1642 	if (rev >= 4) {
1643 		ahc->chip = AHC_AIC7895C;
1644 		ahc->features = AHC_AIC7895C_FE;
1645 	} else  {
1646 		u_int command;
1647 
1648 		ahc->chip = AHC_AIC7895;
1649 		ahc->features = AHC_AIC7895_FE;
1650 
1651 		/*
1652 		 * The BIOS disables the use of MWI transactions
1653 		 * since it does not have the MWI bug work around
1654 		 * we have.  Disabling MWI reduces performance, so
1655 		 * turn it on again.
1656 		 */
1657 		command = pci_conf_read(ahc->bd->pc, ahc->bd->tag,
1658 		    PCI_COMMAND_STATUS_REG);
1659 		command |=  PCI_COMMAND_INVALIDATE_ENABLE;
1660 		pci_conf_write(ahc->bd->pc, ahc->bd->tag,
1661 		    PCI_COMMAND_STATUS_REG, command);
1662 		ahc->bugs |= AHC_PCI_MWI_BUG;
1663 	}
1664 	/*
1665 	 * XXX Does CACHETHEN really not work???  What about PCI retry?
1666 	 * on C level chips.  Need to test, but for now, play it safe.
1667 	 */
1668 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_PCI_2_1_RETRY_BUG
1669 		  |  AHC_CACHETHEN_BUG;
1670 
1671 #if 0
1672 	uint32_t devconfig;
1673 
1674 	/*
1675 	 * Cachesize must also be zero due to stray DAC
1676 	 * problem when sitting behind some bridges.
1677 	 */
1678 	pci_conf_write(ahc->bd->pc, ahc->bd->tag, CSIZE_LATTIME, 0);
1679 	devconfig = pci_conf_read(ahc->bd->pc, ahc->bd->tag, DEVCONFIG);
1680 	devconfig |= MRDCEN;
1681 	pci_conf_write(ahc->bd->pc, ahc->bd->tag, DEVCONFIG, devconfig);
1682 #endif
1683 	ahc->flags |= AHC_NEWEEPROM_FMT;
1684 	return (0);
1685 }
1686 
1687 static int
1688 ahc_aic7896_setup(struct ahc_softc *ahc)
1689 {
1690 	ahc->channel = (ahc->bd->func == 1) ? 'B' : 'A';
1691 	ahc->chip = AHC_AIC7896;
1692 	ahc->features = AHC_AIC7896_FE;
1693 	ahc->flags |= AHC_NEWEEPROM_FMT;
1694 	ahc->bugs |= AHC_CACHETHEN_DIS_BUG;
1695 	return (0);
1696 }
1697 
1698 static int
1699 ahc_aic7899_setup(struct ahc_softc *ahc)
1700 {
1701 	ahc->channel = (ahc->bd->func == 1) ? 'B' : 'A';
1702 	ahc->chip = AHC_AIC7899;
1703 	ahc->features = AHC_AIC7899_FE;
1704 	ahc->flags |= AHC_NEWEEPROM_FMT;
1705 	ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
1706 	return (0);
1707 }
1708 
1709 static int
1710 ahc_aha29160C_setup(struct ahc_softc *ahc)
1711 {
1712 	int error;
1713 
1714 	error = ahc_aic7899_setup(ahc);
1715 	if (error != 0)
1716 		return (error);
1717 	ahc->features |= AHC_REMOVABLE;
1718 	return (0);
1719 }
1720 
1721 static int
1722 ahc_raid_setup(struct ahc_softc *ahc)
1723 {
1724 	aprint_normal_dev(ahc->sc_dev, "RAID functionality unsupported\n");
1725 	return (ENXIO);
1726 }
1727 
1728 static int
1729 ahc_aha394XX_setup(struct ahc_softc *ahc)
1730 {
1731 
1732 	switch (ahc->bd->dev) {
1733 	case AHC_394X_SLOT_CHANNEL_A:
1734 		ahc->channel = 'A';
1735 		break;
1736 	case AHC_394X_SLOT_CHANNEL_B:
1737 		ahc->channel = 'B';
1738 		break;
1739 	default:
1740 		printf("adapter at unexpected slot %d\n"
1741 		       "unable to map to a channel\n",
1742 		       ahc->bd->dev);
1743 		ahc->channel = 'A';
1744 	}
1745 	return (0);
1746 }
1747 
1748 static int
1749 ahc_aha398XX_setup(struct ahc_softc *ahc)
1750 {
1751 
1752 	switch (ahc->bd->dev) {
1753 	case AHC_398X_SLOT_CHANNEL_A:
1754 		ahc->channel = 'A';
1755 		break;
1756 	case AHC_398X_SLOT_CHANNEL_B:
1757 		ahc->channel = 'B';
1758 		break;
1759 	case AHC_398X_SLOT_CHANNEL_C:
1760 		ahc->channel = 'C';
1761 		break;
1762 	default:
1763 		printf("adapter at unexpected slot %d\n"
1764 		       "unable to map to a channel\n",
1765 		       ahc->bd->dev);
1766 		ahc->channel = 'A';
1767 		break;
1768 	}
1769 	ahc->flags |= AHC_LARGE_SEEPROM;
1770 	return (0);
1771 }
1772 
1773 static int
1774 ahc_aha494XX_setup(struct ahc_softc *ahc)
1775 {
1776 
1777 	switch (ahc->bd->dev) {
1778 	case AHC_494X_SLOT_CHANNEL_A:
1779 		ahc->channel = 'A';
1780 		break;
1781 	case AHC_494X_SLOT_CHANNEL_B:
1782 		ahc->channel = 'B';
1783 		break;
1784 	case AHC_494X_SLOT_CHANNEL_C:
1785 		ahc->channel = 'C';
1786 		break;
1787 	case AHC_494X_SLOT_CHANNEL_D:
1788 		ahc->channel = 'D';
1789 		break;
1790 	default:
1791 		printf("adapter at unexpected slot %d\n"
1792 		       "unable to map to a channel\n",
1793 		       ahc->bd->dev);
1794 		ahc->channel = 'A';
1795 	}
1796 	ahc->flags |= AHC_LARGE_SEEPROM;
1797 	return (0);
1798 }
1799