xref: /freebsd/sys/dev/aic7xxx/aic7xxx_pci.c (revision eb69d1f144a6fcc765d1b9d44a5ae8082353e70b)
1 /*-
2  * Product specific probe and attach routines for:
3  *      3940, 2940, aic7895, aic7890, aic7880,
4  *	aic7870, aic7860 and aic7850 SCSI controllers
5  *
6  * SPDX-License-Identifier: BSD-3-Clause
7  *
8  * Copyright (c) 1994-2001 Justin T. Gibbs.
9  * Copyright (c) 2000-2001 Adaptec Inc.
10  * All rights reserved.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions, and the following disclaimer,
17  *    without modification.
18  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19  *    substantially similar to the "NO WARRANTY" disclaimer below
20  *    ("Disclaimer") and any redistribution must be conditioned upon
21  *    including a substantially similar Disclaimer requirement for further
22  *    binary redistribution.
23  * 3. Neither the names of the above-listed copyright holders nor the names
24  *    of any contributors may be used to endorse or promote products derived
25  *    from this software without specific prior written permission.
26  *
27  * Alternatively, this software may be distributed under the terms of the
28  * GNU General Public License ("GPL") version 2 as published by the Free
29  * Software Foundation.
30  *
31  * NO WARRANTY
32  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42  * POSSIBILITY OF SUCH DAMAGES.
43  *
44  * $Id: //depot/aic7xxx/aic7xxx/aic7xxx_pci.c#78 $
45  */
46 
47 #ifdef __linux__
48 #include "aic7xxx_osm.h"
49 #include "aic7xxx_inline.h"
50 #include "aic7xxx_93cx6.h"
51 #else
52 #include <sys/cdefs.h>
53 __FBSDID("$FreeBSD$");
54 #include <dev/aic7xxx/aic7xxx_osm.h>
55 #include <dev/aic7xxx/aic7xxx_inline.h>
56 #include <dev/aic7xxx/aic7xxx_93cx6.h>
57 #endif
58 
59 static __inline uint64_t
60 ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
61 {
62 	uint64_t id;
63 
64 	id = subvendor
65 	   | (subdevice << 16)
66 	   | ((uint64_t)vendor << 32)
67 	   | ((uint64_t)device << 48);
68 
69 	return (id);
70 }
71 
72 #define ID_ALL_MASK			0xFFFFFFFFFFFFFFFFull
73 #define ID_DEV_VENDOR_MASK		0xFFFFFFFF00000000ull
74 #define ID_9005_GENERIC_MASK		0xFFF0FFFF00000000ull
75 #define ID_9005_SISL_MASK		0x000FFFFF00000000ull
76 #define ID_9005_SISL_ID			0x0005900500000000ull
77 #define ID_AIC7850			0x5078900400000000ull
78 #define ID_AHA_2902_04_10_15_20C_30C	0x5078900478509004ull
79 #define ID_AIC7855			0x5578900400000000ull
80 #define ID_AIC7859			0x3860900400000000ull
81 #define ID_AHA_2930CU			0x3860900438699004ull
82 #define ID_AIC7860			0x6078900400000000ull
83 #define ID_AIC7860C			0x6078900478609004ull
84 #define ID_AHA_1480A			0x6075900400000000ull
85 #define ID_AHA_2940AU_0			0x6178900400000000ull
86 #define ID_AHA_2940AU_1			0x6178900478619004ull
87 #define ID_AHA_2940AU_CN		0x2178900478219004ull
88 #define ID_AHA_2930C_VAR		0x6038900438689004ull
89 
90 #define ID_AIC7870			0x7078900400000000ull
91 #define ID_AHA_2940			0x7178900400000000ull
92 #define ID_AHA_3940			0x7278900400000000ull
93 #define ID_AHA_398X			0x7378900400000000ull
94 #define ID_AHA_2944			0x7478900400000000ull
95 #define ID_AHA_3944			0x7578900400000000ull
96 #define ID_AHA_4944			0x7678900400000000ull
97 
98 #define ID_AIC7880			0x8078900400000000ull
99 #define ID_AIC7880_B			0x8078900478809004ull
100 #define ID_AHA_2940U			0x8178900400000000ull
101 #define ID_AHA_3940U			0x8278900400000000ull
102 #define ID_AHA_2944U			0x8478900400000000ull
103 #define ID_AHA_3944U			0x8578900400000000ull
104 #define ID_AHA_398XU			0x8378900400000000ull
105 #define ID_AHA_4944U			0x8678900400000000ull
106 #define ID_AHA_2940UB			0x8178900478819004ull
107 #define ID_AHA_2930U			0x8878900478889004ull
108 #define ID_AHA_2940U_PRO		0x8778900478879004ull
109 #define ID_AHA_2940U_CN			0x0078900478009004ull
110 
111 #define ID_AIC7895			0x7895900478959004ull
112 #define ID_AIC7895_ARO			0x7890900478939004ull
113 #define ID_AIC7895_ARO_MASK		0xFFF0FFFFFFFFFFFFull
114 #define ID_AHA_2940U_DUAL		0x7895900478919004ull
115 #define ID_AHA_3940AU			0x7895900478929004ull
116 #define ID_AHA_3944AU			0x7895900478949004ull
117 
118 #define ID_AIC7890			0x001F9005000F9005ull
119 #define ID_AIC7890_ARO			0x00139005000F9005ull
120 #define ID_AAA_131U2			0x0013900500039005ull
121 #define ID_AHA_2930U2			0x0011900501819005ull
122 #define ID_AHA_2940U2B			0x00109005A1009005ull
123 #define ID_AHA_2940U2_OEM		0x0010900521809005ull
124 #define ID_AHA_2940U2			0x00109005A1809005ull
125 #define ID_AHA_2950U2B			0x00109005E1009005ull
126 
127 #define ID_AIC7892			0x008F9005FFFF9005ull
128 #define ID_AIC7892_ARO			0x00839005FFFF9005ull
129 #define ID_AHA_29160			0x00809005E2A09005ull
130 #define ID_AHA_29160_CPQ		0x00809005E2A00E11ull
131 #define ID_AHA_29160N			0x0080900562A09005ull
132 #define ID_AHA_29160C			0x0080900562209005ull
133 #define ID_AHA_29160B			0x00809005E2209005ull
134 #define ID_AHA_19160B			0x0081900562A19005ull
135 #define ID_AHA_2915_30LP		0x0082900502109005ull
136 
137 #define ID_AIC7896			0x005F9005FFFF9005ull
138 #define ID_AIC7896_ARO			0x00539005FFFF9005ull
139 #define ID_AHA_3950U2B_0		0x00509005FFFF9005ull
140 #define ID_AHA_3950U2B_1		0x00509005F5009005ull
141 #define ID_AHA_3950U2D_0		0x00519005FFFF9005ull
142 #define ID_AHA_3950U2D_1		0x00519005B5009005ull
143 
144 #define ID_AIC7899			0x00CF9005FFFF9005ull
145 #define ID_AIC7899_ARO			0x00C39005FFFF9005ull
146 #define ID_AHA_3960D			0x00C09005F6209005ull
147 #define ID_AHA_3960D_CPQ		0x00C09005F6200E11ull
148 
149 #define ID_AIC7810			0x1078900400000000ull
150 #define ID_AIC7815			0x7815900400000000ull
151 
152 #define DEVID_9005_TYPE(id) ((id) & 0xF)
153 #define		DEVID_9005_TYPE_HBA		0x0	/* Standard Card */
154 #define		DEVID_9005_TYPE_AAA		0x3	/* RAID Card */
155 #define		DEVID_9005_TYPE_SISL		0x5	/* Container ROMB */
156 #define		DEVID_9005_TYPE_MB		0xF	/* On Motherboard */
157 
158 #define DEVID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
159 #define		DEVID_9005_MAXRATE_U160		0x0
160 #define		DEVID_9005_MAXRATE_ULTRA2	0x1
161 #define		DEVID_9005_MAXRATE_ULTRA	0x2
162 #define		DEVID_9005_MAXRATE_FAST		0x3
163 
164 #define DEVID_9005_MFUNC(id) (((id) & 0x40) >> 6)
165 
166 #define DEVID_9005_CLASS(id) (((id) & 0xFF00) >> 8)
167 #define		DEVID_9005_CLASS_SPI		0x0	/* Parallel SCSI */
168 
169 #define SUBID_9005_TYPE(id) ((id) & 0xF)
170 #define		SUBID_9005_TYPE_MB		0xF	/* On Motherboard */
171 #define		SUBID_9005_TYPE_CARD		0x0	/* Standard Card */
172 #define		SUBID_9005_TYPE_LCCARD		0x1	/* Low Cost Card */
173 #define		SUBID_9005_TYPE_RAID		0x3	/* Combined with Raid */
174 
175 #define SUBID_9005_TYPE_KNOWN(id)			\
176 	  ((((id) & 0xF) == SUBID_9005_TYPE_MB)		\
177 	|| (((id) & 0xF) == SUBID_9005_TYPE_CARD)	\
178 	|| (((id) & 0xF) == SUBID_9005_TYPE_LCCARD)	\
179 	|| (((id) & 0xF) == SUBID_9005_TYPE_RAID))
180 
181 #define SUBID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
182 #define		SUBID_9005_MAXRATE_ULTRA2	0x0
183 #define		SUBID_9005_MAXRATE_ULTRA	0x1
184 #define		SUBID_9005_MAXRATE_U160		0x2
185 #define		SUBID_9005_MAXRATE_RESERVED	0x3
186 
187 #define SUBID_9005_SEEPTYPE(id)						\
188 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
189 	 ? ((id) & 0xC0) >> 6						\
190 	 : ((id) & 0x300) >> 8)
191 #define		SUBID_9005_SEEPTYPE_NONE	0x0
192 #define		SUBID_9005_SEEPTYPE_1K		0x1
193 #define		SUBID_9005_SEEPTYPE_2K_4K	0x2
194 #define		SUBID_9005_SEEPTYPE_RESERVED	0x3
195 #define SUBID_9005_AUTOTERM(id)						\
196 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
197 	 ? (((id) & 0x400) >> 10) == 0					\
198 	 : (((id) & 0x40) >> 6) == 0)
199 
200 #define SUBID_9005_NUMCHAN(id)						\
201 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
202 	 ? ((id) & 0x300) >> 8						\
203 	 : ((id) & 0xC00) >> 10)
204 
205 #define SUBID_9005_LEGACYCONN(id)					\
206 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
207 	 ? 0								\
208 	 : ((id) & 0x80) >> 7)
209 
210 #define SUBID_9005_MFUNCENB(id)						\
211 	((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB)			\
212 	 ? ((id) & 0x800) >> 11						\
213 	 : ((id) & 0x1000) >> 12)
214 /*
215  * Informational only. Should use chip register to be
216  * certain, but may be use in identification strings.
217  */
218 #define SUBID_9005_CARD_SCSIWIDTH_MASK	0x2000
219 #define SUBID_9005_CARD_PCIWIDTH_MASK	0x4000
220 #define SUBID_9005_CARD_SEDIFF_MASK	0x8000
221 
222 static ahc_device_setup_t ahc_aic785X_setup;
223 static ahc_device_setup_t ahc_aic7860_setup;
224 static ahc_device_setup_t ahc_apa1480_setup;
225 static ahc_device_setup_t ahc_aic7870_setup;
226 static ahc_device_setup_t ahc_aha394X_setup;
227 static ahc_device_setup_t ahc_aha494X_setup;
228 static ahc_device_setup_t ahc_aha398X_setup;
229 static ahc_device_setup_t ahc_aic7880_setup;
230 static ahc_device_setup_t ahc_aha2940Pro_setup;
231 static ahc_device_setup_t ahc_aha394XU_setup;
232 static ahc_device_setup_t ahc_aha398XU_setup;
233 static ahc_device_setup_t ahc_aic7890_setup;
234 static ahc_device_setup_t ahc_aic7892_setup;
235 static ahc_device_setup_t ahc_aic7895_setup;
236 static ahc_device_setup_t ahc_aic7896_setup;
237 static ahc_device_setup_t ahc_aic7899_setup;
238 static ahc_device_setup_t ahc_aha29160C_setup;
239 static ahc_device_setup_t ahc_raid_setup;
240 static ahc_device_setup_t ahc_aha394XX_setup;
241 static ahc_device_setup_t ahc_aha494XX_setup;
242 static ahc_device_setup_t ahc_aha398XX_setup;
243 
244 struct ahc_pci_identity ahc_pci_ident_table [] =
245 {
246 	/* aic7850 based controllers */
247 	{
248 		ID_AHA_2902_04_10_15_20C_30C,
249 		ID_ALL_MASK,
250 		"Adaptec 2902/04/10/15/20C/30C SCSI adapter",
251 		ahc_aic785X_setup
252 	},
253 	/* aic7860 based controllers */
254 	{
255 		ID_AHA_2930CU,
256 		ID_ALL_MASK,
257 		"Adaptec 2930CU SCSI adapter",
258 		ahc_aic7860_setup
259 	},
260 	{
261 		ID_AHA_1480A & ID_DEV_VENDOR_MASK,
262 		ID_DEV_VENDOR_MASK,
263 		"Adaptec 1480A Ultra SCSI adapter",
264 		ahc_apa1480_setup
265 	},
266 	{
267 		ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
268 		ID_DEV_VENDOR_MASK,
269 		"Adaptec 2940A Ultra SCSI adapter",
270 		ahc_aic7860_setup
271 	},
272 	{
273 		ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
274 		ID_DEV_VENDOR_MASK,
275 		"Adaptec 2940A/CN Ultra SCSI adapter",
276 		ahc_aic7860_setup
277 	},
278 	{
279 		ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
280 		ID_DEV_VENDOR_MASK,
281 		"Adaptec 2930C Ultra SCSI adapter (VAR)",
282 		ahc_aic7860_setup
283 	},
284 	/* aic7870 based controllers */
285 	{
286 		ID_AHA_2940,
287 		ID_ALL_MASK,
288 		"Adaptec 2940 SCSI adapter",
289 		ahc_aic7870_setup
290 	},
291 	{
292 		ID_AHA_3940,
293 		ID_ALL_MASK,
294 		"Adaptec 3940 SCSI adapter",
295 		ahc_aha394X_setup
296 	},
297 	{
298 		ID_AHA_398X,
299 		ID_ALL_MASK,
300 		"Adaptec 398X SCSI RAID adapter",
301 		ahc_aha398X_setup
302 	},
303 	{
304 		ID_AHA_2944,
305 		ID_ALL_MASK,
306 		"Adaptec 2944 SCSI adapter",
307 		ahc_aic7870_setup
308 	},
309 	{
310 		ID_AHA_3944,
311 		ID_ALL_MASK,
312 		"Adaptec 3944 SCSI adapter",
313 		ahc_aha394X_setup
314 	},
315 	{
316 		ID_AHA_4944,
317 		ID_ALL_MASK,
318 		"Adaptec 4944 SCSI adapter",
319 		ahc_aha494X_setup
320 	},
321 	/* aic7880 based controllers */
322 	{
323 		ID_AHA_2940U & ID_DEV_VENDOR_MASK,
324 		ID_DEV_VENDOR_MASK,
325 		"Adaptec 2940 Ultra SCSI adapter",
326 		ahc_aic7880_setup
327 	},
328 	{
329 		ID_AHA_3940U & ID_DEV_VENDOR_MASK,
330 		ID_DEV_VENDOR_MASK,
331 		"Adaptec 3940 Ultra SCSI adapter",
332 		ahc_aha394XU_setup
333 	},
334 	{
335 		ID_AHA_2944U & ID_DEV_VENDOR_MASK,
336 		ID_DEV_VENDOR_MASK,
337 		"Adaptec 2944 Ultra SCSI adapter",
338 		ahc_aic7880_setup
339 	},
340 	{
341 		ID_AHA_3944U & ID_DEV_VENDOR_MASK,
342 		ID_DEV_VENDOR_MASK,
343 		"Adaptec 3944 Ultra SCSI adapter",
344 		ahc_aha394XU_setup
345 	},
346 	{
347 		ID_AHA_398XU & ID_DEV_VENDOR_MASK,
348 		ID_DEV_VENDOR_MASK,
349 		"Adaptec 398X Ultra SCSI RAID adapter",
350 		ahc_aha398XU_setup
351 	},
352 	{
353 		/*
354 		 * XXX Don't know the slot numbers
355 		 * so we can't identify channels
356 		 */
357 		ID_AHA_4944U & ID_DEV_VENDOR_MASK,
358 		ID_DEV_VENDOR_MASK,
359 		"Adaptec 4944 Ultra SCSI adapter",
360 		ahc_aic7880_setup
361 	},
362 	{
363 		ID_AHA_2930U & ID_DEV_VENDOR_MASK,
364 		ID_DEV_VENDOR_MASK,
365 		"Adaptec 2930 Ultra SCSI adapter",
366 		ahc_aic7880_setup
367 	},
368 	{
369 		ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
370 		ID_DEV_VENDOR_MASK,
371 		"Adaptec 2940 Pro Ultra SCSI adapter",
372 		ahc_aha2940Pro_setup
373 	},
374 	{
375 		ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
376 		ID_DEV_VENDOR_MASK,
377 		"Adaptec 2940/CN Ultra SCSI adapter",
378 		ahc_aic7880_setup
379 	},
380 	/* Ignore all SISL (AAC on MB) based controllers. */
381 	{
382 		ID_9005_SISL_ID,
383 		ID_9005_SISL_MASK,
384 		NULL,
385 		NULL
386 	},
387 	/* aic7890 based controllers */
388 	{
389 		ID_AHA_2930U2,
390 		ID_ALL_MASK,
391 		"Adaptec 2930 Ultra2 SCSI adapter",
392 		ahc_aic7890_setup
393 	},
394 	{
395 		ID_AHA_2940U2B,
396 		ID_ALL_MASK,
397 		"Adaptec 2940B Ultra2 SCSI adapter",
398 		ahc_aic7890_setup
399 	},
400 	{
401 		ID_AHA_2940U2_OEM,
402 		ID_ALL_MASK,
403 		"Adaptec 2940 Ultra2 SCSI adapter (OEM)",
404 		ahc_aic7890_setup
405 	},
406 	{
407 		ID_AHA_2940U2,
408 		ID_ALL_MASK,
409 		"Adaptec 2940 Ultra2 SCSI adapter",
410 		ahc_aic7890_setup
411 	},
412 	{
413 		ID_AHA_2950U2B,
414 		ID_ALL_MASK,
415 		"Adaptec 2950 Ultra2 SCSI adapter",
416 		ahc_aic7890_setup
417 	},
418 	{
419 		ID_AIC7890_ARO,
420 		ID_ALL_MASK,
421 		"Adaptec aic7890/91 Ultra2 SCSI adapter (ARO)",
422 		ahc_aic7890_setup
423 	},
424 	{
425 		ID_AAA_131U2,
426 		ID_ALL_MASK,
427 		"Adaptec AAA-131 Ultra2 RAID adapter",
428 		ahc_aic7890_setup
429 	},
430 	/* aic7892 based controllers */
431 	{
432 		ID_AHA_29160,
433 		ID_ALL_MASK,
434 		"Adaptec 29160 Ultra160 SCSI adapter",
435 		ahc_aic7892_setup
436 	},
437 	{
438 		ID_AHA_29160_CPQ,
439 		ID_ALL_MASK,
440 		"Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
441 		ahc_aic7892_setup
442 	},
443 	{
444 		ID_AHA_29160N,
445 		ID_ALL_MASK,
446 		"Adaptec 29160N Ultra160 SCSI adapter",
447 		ahc_aic7892_setup
448 	},
449 	{
450 		ID_AHA_29160C,
451 		ID_ALL_MASK,
452 		"Adaptec 29160C Ultra160 SCSI adapter",
453 		ahc_aha29160C_setup
454 	},
455 	{
456 		ID_AHA_29160B,
457 		ID_ALL_MASK,
458 		"Adaptec 29160B Ultra160 SCSI adapter",
459 		ahc_aic7892_setup
460 	},
461 	{
462 		ID_AHA_19160B,
463 		ID_ALL_MASK,
464 		"Adaptec 19160B Ultra160 SCSI adapter",
465 		ahc_aic7892_setup
466 	},
467 	{
468 		ID_AIC7892_ARO,
469 		ID_ALL_MASK,
470 		"Adaptec aic7892 Ultra160 SCSI adapter (ARO)",
471 		ahc_aic7892_setup
472 	},
473 	{
474 		ID_AHA_2915_30LP,
475 		ID_ALL_MASK,
476 		"Adaptec 2915/30LP Ultra160 SCSI adapter",
477 		ahc_aic7892_setup
478 	},
479 	/* aic7895 based controllers */
480 	{
481 		ID_AHA_2940U_DUAL,
482 		ID_ALL_MASK,
483 		"Adaptec 2940/DUAL Ultra SCSI adapter",
484 		ahc_aic7895_setup
485 	},
486 	{
487 		ID_AHA_3940AU,
488 		ID_ALL_MASK,
489 		"Adaptec 3940A Ultra SCSI adapter",
490 		ahc_aic7895_setup
491 	},
492 	{
493 		ID_AHA_3944AU,
494 		ID_ALL_MASK,
495 		"Adaptec 3944A Ultra SCSI adapter",
496 		ahc_aic7895_setup
497 	},
498 	{
499 		ID_AIC7895_ARO,
500 		ID_AIC7895_ARO_MASK,
501 		"Adaptec aic7895 Ultra SCSI adapter (ARO)",
502 		ahc_aic7895_setup
503 	},
504 	/* aic7896/97 based controllers */
505 	{
506 		ID_AHA_3950U2B_0,
507 		ID_ALL_MASK,
508 		"Adaptec 3950B Ultra2 SCSI adapter",
509 		ahc_aic7896_setup
510 	},
511 	{
512 		ID_AHA_3950U2B_1,
513 		ID_ALL_MASK,
514 		"Adaptec 3950B Ultra2 SCSI adapter",
515 		ahc_aic7896_setup
516 	},
517 	{
518 		ID_AHA_3950U2D_0,
519 		ID_ALL_MASK,
520 		"Adaptec 3950D Ultra2 SCSI adapter",
521 		ahc_aic7896_setup
522 	},
523 	{
524 		ID_AHA_3950U2D_1,
525 		ID_ALL_MASK,
526 		"Adaptec 3950D Ultra2 SCSI adapter",
527 		ahc_aic7896_setup
528 	},
529 	{
530 		ID_AIC7896_ARO,
531 		ID_ALL_MASK,
532 		"Adaptec aic7896/97 Ultra2 SCSI adapter (ARO)",
533 		ahc_aic7896_setup
534 	},
535 	/* aic7899 based controllers */
536 	{
537 		ID_AHA_3960D,
538 		ID_ALL_MASK,
539 		"Adaptec 3960D Ultra160 SCSI adapter",
540 		ahc_aic7899_setup
541 	},
542 	{
543 		ID_AHA_3960D_CPQ,
544 		ID_ALL_MASK,
545 		"Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
546 		ahc_aic7899_setup
547 	},
548 	{
549 		ID_AIC7899_ARO,
550 		ID_ALL_MASK,
551 		"Adaptec aic7899 Ultra160 SCSI adapter (ARO)",
552 		ahc_aic7899_setup
553 	},
554 	/* Generic chip probes for devices we don't know 'exactly' */
555 	{
556 		ID_AIC7850 & ID_DEV_VENDOR_MASK,
557 		ID_DEV_VENDOR_MASK,
558 		"Adaptec aic7850 SCSI adapter",
559 		ahc_aic785X_setup
560 	},
561 	{
562 		ID_AIC7855 & ID_DEV_VENDOR_MASK,
563 		ID_DEV_VENDOR_MASK,
564 		"Adaptec aic7855 SCSI adapter",
565 		ahc_aic785X_setup
566 	},
567 	{
568 		ID_AIC7859 & ID_DEV_VENDOR_MASK,
569 		ID_DEV_VENDOR_MASK,
570 		"Adaptec aic7859 SCSI adapter",
571 		ahc_aic7860_setup
572 	},
573 	{
574 		ID_AIC7860 & ID_DEV_VENDOR_MASK,
575 		ID_DEV_VENDOR_MASK,
576 		"Adaptec aic7860 Ultra SCSI adapter",
577 		ahc_aic7860_setup
578 	},
579 	{
580 		ID_AIC7870 & ID_DEV_VENDOR_MASK,
581 		ID_DEV_VENDOR_MASK,
582 		"Adaptec aic7870 SCSI adapter",
583 		ahc_aic7870_setup
584 	},
585 	{
586 		ID_AIC7880 & ID_DEV_VENDOR_MASK,
587 		ID_DEV_VENDOR_MASK,
588 		"Adaptec aic7880 Ultra SCSI adapter",
589 		ahc_aic7880_setup
590 	},
591 	{
592 		ID_AIC7890 & ID_9005_GENERIC_MASK,
593 		ID_9005_GENERIC_MASK,
594 		"Adaptec aic7890/91 Ultra2 SCSI adapter",
595 		ahc_aic7890_setup
596 	},
597 	{
598 		ID_AIC7892 & ID_9005_GENERIC_MASK,
599 		ID_9005_GENERIC_MASK,
600 		"Adaptec aic7892 Ultra160 SCSI adapter",
601 		ahc_aic7892_setup
602 	},
603 	{
604 		ID_AIC7895 & ID_DEV_VENDOR_MASK,
605 		ID_DEV_VENDOR_MASK,
606 		"Adaptec aic7895 Ultra SCSI adapter",
607 		ahc_aic7895_setup
608 	},
609 	{
610 		ID_AIC7896 & ID_9005_GENERIC_MASK,
611 		ID_9005_GENERIC_MASK,
612 		"Adaptec aic7896/97 Ultra2 SCSI adapter",
613 		ahc_aic7896_setup
614 	},
615 	{
616 		ID_AIC7899 & ID_9005_GENERIC_MASK,
617 		ID_9005_GENERIC_MASK,
618 		"Adaptec aic7899 Ultra160 SCSI adapter",
619 		ahc_aic7899_setup
620 	},
621 	{
622 		ID_AIC7810 & ID_DEV_VENDOR_MASK,
623 		ID_DEV_VENDOR_MASK,
624 		"Adaptec aic7810 RAID memory controller",
625 		ahc_raid_setup
626 	},
627 	{
628 		ID_AIC7815 & ID_DEV_VENDOR_MASK,
629 		ID_DEV_VENDOR_MASK,
630 		"Adaptec aic7815 RAID memory controller",
631 		ahc_raid_setup
632 	}
633 };
634 
635 const u_int ahc_num_pci_devs = NUM_ELEMENTS(ahc_pci_ident_table);
636 
637 #define AHC_394X_SLOT_CHANNEL_A	4
638 #define AHC_394X_SLOT_CHANNEL_B	5
639 
640 #define AHC_398X_SLOT_CHANNEL_A	4
641 #define AHC_398X_SLOT_CHANNEL_B	8
642 #define AHC_398X_SLOT_CHANNEL_C	12
643 
644 #define AHC_494X_SLOT_CHANNEL_A	4
645 #define AHC_494X_SLOT_CHANNEL_B	5
646 #define AHC_494X_SLOT_CHANNEL_C	6
647 #define AHC_494X_SLOT_CHANNEL_D	7
648 
649 #define	DEVCONFIG		0x40
650 #define		PCIERRGENDIS	0x80000000ul
651 #define		SCBSIZE32	0x00010000ul	/* aic789X only */
652 #define		REXTVALID	0x00001000ul	/* ultra cards only */
653 #define		MPORTMODE	0x00000400ul	/* aic7870+ only */
654 #define		RAMPSM		0x00000200ul	/* aic7870+ only */
655 #define		VOLSENSE	0x00000100ul
656 #define		PCI64BIT	0x00000080ul	/* 64Bit PCI bus (Ultra2 Only)*/
657 #define		SCBRAMSEL	0x00000080ul
658 #define		MRDCEN		0x00000040ul
659 #define		EXTSCBTIME	0x00000020ul	/* aic7870 only */
660 #define		EXTSCBPEN	0x00000010ul	/* aic7870 only */
661 #define		BERREN		0x00000008ul
662 #define		DACEN		0x00000004ul
663 #define		STPWLEVEL	0x00000002ul
664 #define		DIFACTNEGEN	0x00000001ul	/* aic7870 only */
665 
666 #define	CSIZE_LATTIME		0x0c
667 #define		CACHESIZE	0x0000003ful	/* only 5 bits */
668 #define		LATTIME		0x0000ff00ul
669 
670 /* PCI STATUS definitions */
671 #define	DPE	0x80
672 #define SSE	0x40
673 #define	RMA	0x20
674 #define	RTA	0x10
675 #define STA	0x08
676 #define DPR	0x01
677 
678 static int ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor,
679 				     uint16_t subdevice, uint16_t subvendor);
680 static int ahc_ext_scbram_present(struct ahc_softc *ahc);
681 static void ahc_scbram_config(struct ahc_softc *ahc, int enable,
682 				  int pcheck, int fast, int large);
683 static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
684 static void check_extport(struct ahc_softc *ahc, u_int *sxfrctl1);
685 static void ahc_parse_pci_eeprom(struct ahc_softc *ahc,
686 				 struct seeprom_config *sc);
687 static void configure_termination(struct ahc_softc *ahc,
688 				  struct seeprom_descriptor *sd,
689 				  u_int adapter_control,
690 	 			  u_int *sxfrctl1);
691 
692 static void ahc_new_term_detect(struct ahc_softc *ahc,
693 				int *enableSEC_low,
694 				int *enableSEC_high,
695 				int *enablePRI_low,
696 				int *enablePRI_high,
697 				int *eeprom_present);
698 static void aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
699 				 int *internal68_present,
700 				 int *externalcable_present,
701 				 int *eeprom_present);
702 static void aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
703 				 int *externalcable_present,
704 				 int *eeprom_present);
705 static void    write_brdctl(struct ahc_softc *ahc, uint8_t value);
706 static uint8_t read_brdctl(struct ahc_softc *ahc);
707 static void ahc_pci_intr(struct ahc_softc *ahc);
708 static int  ahc_pci_chip_init(struct ahc_softc *ahc);
709 static int  ahc_pci_suspend(struct ahc_softc *ahc);
710 static int  ahc_pci_resume(struct ahc_softc *ahc);
711 
712 static int
713 ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor,
714 			  uint16_t subdevice, uint16_t subvendor)
715 {
716 	int result;
717 
718 	/* Default to invalid. */
719 	result = 0;
720 	if (vendor == 0x9005
721 	 && subvendor == 0x9005
722          && subdevice != device
723          && SUBID_9005_TYPE_KNOWN(subdevice) != 0) {
724 
725 		switch (SUBID_9005_TYPE(subdevice)) {
726 		case SUBID_9005_TYPE_MB:
727 			break;
728 		case SUBID_9005_TYPE_CARD:
729 		case SUBID_9005_TYPE_LCCARD:
730 			/*
731 			 * Currently only trust Adaptec cards to
732 			 * get the sub device info correct.
733 			 */
734 			if (DEVID_9005_TYPE(device) == DEVID_9005_TYPE_HBA)
735 				result = 1;
736 			break;
737 		case SUBID_9005_TYPE_RAID:
738 			break;
739 		default:
740 			break;
741 		}
742 	}
743 	return (result);
744 }
745 
746 struct ahc_pci_identity *
747 ahc_find_pci_device(aic_dev_softc_t pci)
748 {
749 	uint64_t  full_id;
750 	uint16_t  device;
751 	uint16_t  vendor;
752 	uint16_t  subdevice;
753 	uint16_t  subvendor;
754 	struct	  ahc_pci_identity *entry;
755 	u_int	  i;
756 
757 	vendor = aic_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
758 	device = aic_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
759 	subvendor = aic_pci_read_config(pci, PCIR_SUBVEND_0, /*bytes*/2);
760 	subdevice = aic_pci_read_config(pci, PCIR_SUBDEV_0, /*bytes*/2);
761 	full_id = ahc_compose_id(device, vendor, subdevice, subvendor);
762 
763 	/*
764 	 * If the second function is not hooked up, ignore it.
765 	 * Unfortunately, not all MB vendors implement the
766 	 * subdevice ID as per the Adaptec spec, so do our best
767 	 * to sanity check it prior to accepting the subdevice
768 	 * ID as valid.
769 	 */
770 	if (aic_get_pci_function(pci) > 0
771 	 && ahc_9005_subdevinfo_valid(device, vendor, subdevice, subvendor)
772 	 && SUBID_9005_MFUNCENB(subdevice) == 0)
773 		return (NULL);
774 
775 	for (i = 0; i < ahc_num_pci_devs; i++) {
776 		entry = &ahc_pci_ident_table[i];
777 		if (entry->full_id == (full_id & entry->id_mask)) {
778 			/* Honor exclusion entries. */
779 			if (entry->name == NULL)
780 				return (NULL);
781 			return (entry);
782 		}
783 	}
784 	return (NULL);
785 }
786 
787 int
788 ahc_pci_config(struct ahc_softc *ahc, struct ahc_pci_identity *entry)
789 {
790 	u_int	 command;
791 	u_int	 our_id;
792 	u_int	 sxfrctl1;
793 	u_int	 scsiseq;
794 	u_int	 dscommand0;
795 	uint32_t devconfig;
796 	int	 error;
797 	uint8_t	 sblkctl;
798 
799 	our_id = 0;
800 	error = entry->setup(ahc);
801 	if (error != 0)
802 		return (error);
803 	ahc->chip |= AHC_PCI;
804 	ahc->description = entry->name;
805 
806 	aic_power_state_change(ahc, AIC_POWER_STATE_D0);
807 
808 	error = ahc_pci_map_registers(ahc);
809 	if (error != 0)
810 		return (error);
811 
812 	/*
813 	 * Before we continue probing the card, ensure that
814 	 * its interrupts are *disabled*.  We don't want
815 	 * a misstep to hang the machine in an interrupt
816 	 * storm.
817 	 */
818 	ahc_intr_enable(ahc, FALSE);
819 
820 	devconfig = aic_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
821 
822 	/*
823 	 * If we need to support high memory, enable dual
824 	 * address cycles.  This bit must be set to enable
825 	 * high address bit generation even if we are on a
826 	 * 64bit bus (PCI64BIT set in devconfig).
827 	 */
828 	if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) {
829 
830 		if (bootverbose)
831 			printf("%s: Enabling 39Bit Addressing\n",
832 			       ahc_name(ahc));
833 		devconfig |= DACEN;
834 	}
835 
836 	/* Ensure that pci error generation, a test feature, is disabled. */
837 	devconfig |= PCIERRGENDIS;
838 
839 	aic_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
840 
841 	/* Ensure busmastering is enabled */
842 	command = aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
843 	command |= PCIM_CMD_BUSMASTEREN;
844 
845 	aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, /*bytes*/2);
846 
847 	/* On all PCI adapters, we allow SCB paging */
848 	ahc->flags |= AHC_PAGESCBS;
849 
850 	error = ahc_softc_init(ahc);
851 	if (error != 0)
852 		return (error);
853 
854 	/*
855 	 * Disable PCI parity error checking.  Users typically
856 	 * do this to work around broken PCI chipsets that get
857 	 * the parity timing wrong and thus generate lots of spurious
858 	 * errors.  The chip only allows us to disable *all* parity
859 	 * error reporting when doing this, so CIO bus, scb ram, and
860 	 * scratch ram parity errors will be ignored too.
861 	 */
862 	if ((ahc->flags & AHC_DISABLE_PCI_PERR) != 0)
863 		ahc->seqctl |= FAILDIS;
864 
865 	ahc->bus_intr = ahc_pci_intr;
866 	ahc->bus_chip_init = ahc_pci_chip_init;
867 	ahc->bus_suspend = ahc_pci_suspend;
868 	ahc->bus_resume = ahc_pci_resume;
869 
870 	/* Remember how the card was setup in case there is no SEEPROM */
871 	if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) {
872 		ahc_pause(ahc);
873 		if ((ahc->features & AHC_ULTRA2) != 0)
874 			our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
875 		else
876 			our_id = ahc_inb(ahc, SCSIID) & OID;
877 		sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
878 		scsiseq = ahc_inb(ahc, SCSISEQ);
879 	} else {
880 		sxfrctl1 = STPWEN;
881 		our_id = 7;
882 		scsiseq = 0;
883 	}
884 
885 	error = ahc_reset(ahc, /*reinit*/FALSE);
886 	if (error != 0)
887 		return (ENXIO);
888 
889 	if ((ahc->features & AHC_DT) != 0) {
890 		u_int sfunct;
891 
892 		/* Perform ALT-Mode Setup */
893 		sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
894 		ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
895 		ahc_outb(ahc, OPTIONMODE,
896 			 OPTIONMODE_DEFAULTS|AUTOACKEN|BUSFREEREV|EXPPHASEDIS);
897 		ahc_outb(ahc, SFUNCT, sfunct);
898 
899 		/* Normal mode setup */
900 		ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
901 					  |TARGCRCENDEN);
902 	}
903 
904 	dscommand0 = ahc_inb(ahc, DSCOMMAND0);
905 	dscommand0 |= MPARCKEN|CACHETHEN;
906 	if ((ahc->features & AHC_ULTRA2) != 0) {
907 
908 		/*
909 		 * DPARCKEN doesn't work correctly on
910 		 * some MBs so don't use it.
911 		 */
912 		dscommand0 &= ~DPARCKEN;
913 	}
914 
915 	/*
916 	 * Handle chips that must have cache line
917 	 * streaming (dis/en)abled.
918 	 */
919 	if ((ahc->bugs & AHC_CACHETHEN_DIS_BUG) != 0)
920 		dscommand0 |= CACHETHEN;
921 
922 	if ((ahc->bugs & AHC_CACHETHEN_BUG) != 0)
923 		dscommand0 &= ~CACHETHEN;
924 
925 	ahc_outb(ahc, DSCOMMAND0, dscommand0);
926 
927 	ahc->pci_cachesize =
928 	    aic_pci_read_config(ahc->dev_softc, CSIZE_LATTIME,
929 				/*bytes*/1) & CACHESIZE;
930 	ahc->pci_cachesize *= 4;
931 
932 	if ((ahc->bugs & AHC_PCI_2_1_RETRY_BUG) != 0
933 	 && ahc->pci_cachesize == 4) {
934 
935 		aic_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
936 				     0, /*bytes*/1);
937 		ahc->pci_cachesize = 0;
938 	}
939 
940 	/*
941 	 * We cannot perform ULTRA speeds without the presence
942 	 * of the external precision resistor.
943 	 */
944 	if ((ahc->features & AHC_ULTRA) != 0) {
945 		uint32_t devconfig;
946 
947 		devconfig = aic_pci_read_config(ahc->dev_softc,
948 						DEVCONFIG, /*bytes*/4);
949 		if ((devconfig & REXTVALID) == 0)
950 			ahc->features &= ~AHC_ULTRA;
951 	}
952 
953 	/* See if we have a SEEPROM and perform auto-term */
954 	check_extport(ahc, &sxfrctl1);
955 
956 	/*
957 	 * Take the LED out of diagnostic mode
958 	 */
959 	sblkctl = ahc_inb(ahc, SBLKCTL);
960 	ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
961 
962 	if ((ahc->features & AHC_ULTRA2) != 0) {
963 		ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MAX|WR_DFTHRSH_MAX);
964 	} else {
965 		ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
966 	}
967 
968 	if (ahc->flags & AHC_USEDEFAULTS) {
969 		/*
970 		 * PCI Adapter default setup
971 		 * Should only be used if the adapter does not have
972 		 * a SEEPROM.
973 		 */
974 		/* See if someone else set us up already */
975 		if ((ahc->flags & AHC_NO_BIOS_INIT) == 0
976 		 && scsiseq != 0) {
977 			printf("%s: Using left over BIOS settings\n",
978 				ahc_name(ahc));
979 			ahc->flags &= ~AHC_USEDEFAULTS;
980 			ahc->flags |= AHC_BIOS_ENABLED;
981 		} else {
982 			/*
983 			 * Assume only one connector and always turn
984 			 * on termination.
985 			 */
986  			our_id = 0x07;
987 			sxfrctl1 = STPWEN;
988 		}
989 		ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
990 
991 		ahc->our_id = our_id;
992 	}
993 
994 	/*
995 	 * Take a look to see if we have external SRAM.
996 	 * We currently do not attempt to use SRAM that is
997 	 * shared among multiple controllers.
998 	 */
999 	ahc_probe_ext_scbram(ahc);
1000 
1001 	/*
1002 	 * Record our termination setting for the
1003 	 * generic initialization routine.
1004 	 */
1005 	if ((sxfrctl1 & STPWEN) != 0)
1006 		ahc->flags |= AHC_TERM_ENB_A;
1007 
1008 	/*
1009 	 * Save chip register configuration data for chip resets
1010 	 * that occur during runtime and resume events.
1011 	 */
1012 	ahc->bus_softc.pci_softc.devconfig =
1013 	    aic_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
1014 	ahc->bus_softc.pci_softc.command =
1015 	    aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1);
1016 	ahc->bus_softc.pci_softc.csize_lattime =
1017 	    aic_pci_read_config(ahc->dev_softc, CSIZE_LATTIME, /*bytes*/1);
1018 	ahc->bus_softc.pci_softc.dscommand0 = ahc_inb(ahc, DSCOMMAND0);
1019 	ahc->bus_softc.pci_softc.dspcistatus = ahc_inb(ahc, DSPCISTATUS);
1020 	if ((ahc->features & AHC_DT) != 0) {
1021 		u_int sfunct;
1022 
1023 		sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
1024 		ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
1025 		ahc->bus_softc.pci_softc.optionmode = ahc_inb(ahc, OPTIONMODE);
1026 		ahc->bus_softc.pci_softc.targcrccnt = ahc_inw(ahc, TARGCRCCNT);
1027 		ahc_outb(ahc, SFUNCT, sfunct);
1028 		ahc->bus_softc.pci_softc.crccontrol1 =
1029 		    ahc_inb(ahc, CRCCONTROL1);
1030 	}
1031 	if ((ahc->features & AHC_MULTI_FUNC) != 0)
1032 		ahc->bus_softc.pci_softc.scbbaddr = ahc_inb(ahc, SCBBADDR);
1033 
1034 	if ((ahc->features & AHC_ULTRA2) != 0)
1035 		ahc->bus_softc.pci_softc.dff_thrsh = ahc_inb(ahc, DFF_THRSH);
1036 
1037 	/* Core initialization */
1038 	error = ahc_init(ahc);
1039 	if (error != 0)
1040 		return (error);
1041 
1042 	/*
1043 	 * Allow interrupts now that we are completely setup.
1044 	 */
1045 	error = ahc_pci_map_int(ahc);
1046 	if (error != 0)
1047 		return (error);
1048 
1049 	ahc_lock(ahc);
1050 	/*
1051 	 * Link this softc in with all other ahc instances.
1052 	 */
1053 	ahc_softc_insert(ahc);
1054 	ahc_unlock(ahc);
1055 	return (0);
1056 }
1057 
1058 /*
1059  * Test for the presence of external sram in an
1060  * "unshared" configuration.
1061  */
1062 static int
1063 ahc_ext_scbram_present(struct ahc_softc *ahc)
1064 {
1065 	u_int chip;
1066 	int ramps;
1067 	int single_user;
1068 	uint32_t devconfig;
1069 
1070 	chip = ahc->chip & AHC_CHIPID_MASK;
1071 	devconfig = aic_pci_read_config(ahc->dev_softc,
1072 					DEVCONFIG, /*bytes*/4);
1073 	single_user = (devconfig & MPORTMODE) != 0;
1074 
1075 	if ((ahc->features & AHC_ULTRA2) != 0)
1076 		ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
1077 	else if (chip == AHC_AIC7895 || chip == AHC_AIC7895C)
1078 		/*
1079 		 * External SCBRAM arbitration is flakey
1080 		 * on these chips.  Unfortunately this means
1081 		 * we don't use the extra SCB ram space on the
1082 		 * 3940AUW.
1083 		 */
1084 		ramps = 0;
1085 	else if (chip >= AHC_AIC7870)
1086 		ramps = (devconfig & RAMPSM) != 0;
1087 	else
1088 		ramps = 0;
1089 
1090 	if (ramps && single_user)
1091 		return (1);
1092 	return (0);
1093 }
1094 
1095 /*
1096  * Enable external scbram.
1097  */
1098 static void
1099 ahc_scbram_config(struct ahc_softc *ahc, int enable, int pcheck,
1100 		  int fast, int large)
1101 {
1102 	uint32_t devconfig;
1103 
1104 	if (ahc->features & AHC_MULTI_FUNC) {
1105 		/*
1106 		 * Set the SCB Base addr (highest address bit)
1107 		 * depending on which channel we are.
1108 		 */
1109 		ahc_outb(ahc, SCBBADDR, aic_get_pci_function(ahc->dev_softc));
1110 	}
1111 
1112 	ahc->flags &= ~AHC_LSCBS_ENABLED;
1113 	if (large)
1114 		ahc->flags |= AHC_LSCBS_ENABLED;
1115 	devconfig = aic_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
1116 	if ((ahc->features & AHC_ULTRA2) != 0) {
1117 		u_int dscommand0;
1118 
1119 		dscommand0 = ahc_inb(ahc, DSCOMMAND0);
1120 		if (enable)
1121 			dscommand0 &= ~INTSCBRAMSEL;
1122 		else
1123 			dscommand0 |= INTSCBRAMSEL;
1124 		if (large)
1125 			dscommand0 &= ~USCBSIZE32;
1126 		else
1127 			dscommand0 |= USCBSIZE32;
1128 		ahc_outb(ahc, DSCOMMAND0, dscommand0);
1129 	} else {
1130 		if (fast)
1131 			devconfig &= ~EXTSCBTIME;
1132 		else
1133 			devconfig |= EXTSCBTIME;
1134 		if (enable)
1135 			devconfig &= ~SCBRAMSEL;
1136 		else
1137 			devconfig |= SCBRAMSEL;
1138 		if (large)
1139 			devconfig &= ~SCBSIZE32;
1140 		else
1141 			devconfig |= SCBSIZE32;
1142 	}
1143 	if (pcheck)
1144 		devconfig |= EXTSCBPEN;
1145 	else
1146 		devconfig &= ~EXTSCBPEN;
1147 
1148 	aic_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
1149 }
1150 
1151 /*
1152  * Take a look to see if we have external SRAM.
1153  * We currently do not attempt to use SRAM that is
1154  * shared among multiple controllers.
1155  */
1156 static void
1157 ahc_probe_ext_scbram(struct ahc_softc *ahc)
1158 {
1159 	int num_scbs;
1160 	int test_num_scbs;
1161 	int enable;
1162 	int pcheck;
1163 	int fast;
1164 	int large;
1165 
1166 	enable = FALSE;
1167 	pcheck = FALSE;
1168 	fast = FALSE;
1169 	large = FALSE;
1170 	num_scbs = 0;
1171 
1172 	if (ahc_ext_scbram_present(ahc) == 0)
1173 		goto done;
1174 
1175 	/*
1176 	 * Probe for the best parameters to use.
1177 	 */
1178 	ahc_scbram_config(ahc, /*enable*/TRUE, pcheck, fast, large);
1179 	num_scbs = ahc_probe_scbs(ahc);
1180 	if (num_scbs == 0) {
1181 		/* The SRAM wasn't really present. */
1182 		goto done;
1183 	}
1184 	enable = TRUE;
1185 
1186 	/*
1187 	 * Clear any outstanding parity error
1188 	 * and ensure that parity error reporting
1189 	 * is enabled.
1190 	 */
1191 	ahc_outb(ahc, SEQCTL, 0);
1192 	ahc_outb(ahc, CLRINT, CLRPARERR);
1193 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1194 
1195 	/* Now see if we can do parity */
1196 	ahc_scbram_config(ahc, enable, /*pcheck*/TRUE, fast, large);
1197 	num_scbs = ahc_probe_scbs(ahc);
1198 	if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
1199 	 || (ahc_inb(ahc, ERROR) & MPARERR) == 0)
1200 		pcheck = TRUE;
1201 
1202 	/* Clear any resulting parity error */
1203 	ahc_outb(ahc, CLRINT, CLRPARERR);
1204 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1205 
1206 	/* Now see if we can do fast timing */
1207 	ahc_scbram_config(ahc, enable, pcheck, /*fast*/TRUE, large);
1208 	test_num_scbs = ahc_probe_scbs(ahc);
1209 	if (test_num_scbs == num_scbs
1210 	 && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
1211 	  || (ahc_inb(ahc, ERROR) & MPARERR) == 0))
1212 		fast = TRUE;
1213 
1214 	/*
1215 	 * See if we can use large SCBs and still maintain
1216 	 * the same overall count of SCBs.
1217 	 */
1218 	if ((ahc->features & AHC_LARGE_SCBS) != 0) {
1219 		ahc_scbram_config(ahc, enable, pcheck, fast, /*large*/TRUE);
1220 		test_num_scbs = ahc_probe_scbs(ahc);
1221 		if (test_num_scbs >= num_scbs) {
1222 			large = TRUE;
1223 			num_scbs = test_num_scbs;
1224 	 		if (num_scbs >= 64) {
1225 				/*
1226 				 * We have enough space to move the
1227 				 * "busy targets table" into SCB space
1228 				 * and make it qualify all the way to the
1229 				 * lun level.
1230 				 */
1231 				ahc->flags |= AHC_SCB_BTT;
1232 			}
1233 		}
1234 	}
1235 done:
1236 	/*
1237 	 * Disable parity error reporting until we
1238 	 * can load instruction ram.
1239 	 */
1240 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
1241 	/* Clear any latched parity error */
1242 	ahc_outb(ahc, CLRINT, CLRPARERR);
1243 	ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1244 	if (bootverbose && enable) {
1245 		printf("%s: External SRAM, %s access%s, %dbytes/SCB\n",
1246 		       ahc_name(ahc), fast ? "fast" : "slow",
1247 		       pcheck ? ", parity checking enabled" : "",
1248 		       large ? 64 : 32);
1249 	}
1250 	ahc_scbram_config(ahc, enable, pcheck, fast, large);
1251 }
1252 
1253 /*
1254  * Perform some simple tests that should catch situations where
1255  * our registers are invalidly mapped.
1256  */
1257 int
1258 ahc_pci_test_register_access(struct ahc_softc *ahc)
1259 {
1260 	int	 error;
1261 	u_int	 status1;
1262 	uint32_t cmd;
1263 	uint8_t	 hcntrl;
1264 
1265 	error = EIO;
1266 
1267 	/*
1268 	 * Enable PCI error interrupt status, but suppress NMIs
1269 	 * generated by SERR raised due to target aborts.
1270 	 */
1271 	cmd = aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
1272 	aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
1273 			     cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);
1274 
1275 	/*
1276 	 * First a simple test to see if any
1277 	 * registers can be read.  Reading
1278 	 * HCNTRL has no side effects and has
1279 	 * at least one bit that is guaranteed to
1280 	 * be zero so it is a good register to
1281 	 * use for this test.
1282 	 */
1283 	hcntrl = ahc_inb(ahc, HCNTRL);
1284 
1285 	if (hcntrl == 0xFF)
1286 		goto fail;
1287 
1288 	if ((hcntrl & CHIPRST) != 0) {
1289 		/*
1290 		 * The chip has not been initialized since
1291 		 * PCI/EISA/VLB bus reset.  Don't trust
1292 		 * "left over BIOS data".
1293 		 */
1294 		ahc->flags |= AHC_NO_BIOS_INIT;
1295 	}
1296 
1297 	/*
1298 	 * Next create a situation where write combining
1299 	 * or read prefetching could be initiated by the
1300 	 * CPU or host bridge.  Our device does not support
1301 	 * either, so look for data corruption and/or flagged
1302 	 * PCI errors.  First pause without causing another
1303 	 * chip reset.
1304 	 */
1305 	hcntrl &= ~CHIPRST;
1306 	ahc_outb(ahc, HCNTRL, hcntrl|PAUSE);
1307 	while (ahc_is_paused(ahc) == 0)
1308 		;
1309 
1310 	/* Clear any PCI errors that occurred before our driver attached. */
1311 	status1 = aic_pci_read_config(ahc->dev_softc,
1312 				      PCIR_STATUS + 1, /*bytes*/1);
1313 	aic_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
1314 			     status1, /*bytes*/1);
1315 	ahc_outb(ahc, CLRINT, CLRPARERR);
1316 
1317 	ahc_outb(ahc, SEQCTL, PERRORDIS);
1318 	ahc_outb(ahc, SCBPTR, 0);
1319 	ahc_outl(ahc, SCB_BASE, 0x5aa555aa);
1320 	if (ahc_inl(ahc, SCB_BASE) != 0x5aa555aa)
1321 		goto fail;
1322 
1323 	status1 = aic_pci_read_config(ahc->dev_softc,
1324 				      PCIR_STATUS + 1, /*bytes*/1);
1325 	if ((status1 & STA) != 0)
1326 		goto fail;
1327 
1328 	error = 0;
1329 
1330 fail:
1331 	/* Silently clear any latched errors. */
1332 	status1 = aic_pci_read_config(ahc->dev_softc,
1333 				      PCIR_STATUS + 1, /*bytes*/1);
1334 	aic_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
1335 			     status1, /*bytes*/1);
1336 	ahc_outb(ahc, CLRINT, CLRPARERR);
1337 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
1338 	aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
1339 	return (error);
1340 }
1341 
1342 /*
1343  * Check the external port logic for a serial eeprom
1344  * and termination/cable detection contrls.
1345  */
1346 static void
1347 check_extport(struct ahc_softc *ahc, u_int *sxfrctl1)
1348 {
1349 	struct	seeprom_descriptor sd;
1350 	struct	seeprom_config *sc;
1351 	int	have_seeprom;
1352 	int	have_autoterm;
1353 
1354 	sd.sd_ahc = ahc;
1355 	sd.sd_control_offset = SEECTL;
1356 	sd.sd_status_offset = SEECTL;
1357 	sd.sd_dataout_offset = SEECTL;
1358 	sc = ahc->seep_config;
1359 
1360 	/*
1361 	 * For some multi-channel devices, the c46 is simply too
1362 	 * small to work.  For the other controller types, we can
1363 	 * get our information from either SEEPROM type.  Set the
1364 	 * type to start our probe with accordingly.
1365 	 */
1366 	if (ahc->flags & AHC_LARGE_SEEPROM)
1367 		sd.sd_chip = C56_66;
1368 	else
1369 		sd.sd_chip = C46;
1370 
1371 	sd.sd_MS = SEEMS;
1372 	sd.sd_RDY = SEERDY;
1373 	sd.sd_CS = SEECS;
1374 	sd.sd_CK = SEECK;
1375 	sd.sd_DO = SEEDO;
1376 	sd.sd_DI = SEEDI;
1377 
1378 	have_seeprom = ahc_acquire_seeprom(ahc, &sd);
1379 	if (have_seeprom) {
1380 
1381 		if (bootverbose)
1382 			printf("%s: Reading SEEPROM...", ahc_name(ahc));
1383 
1384 		for (;;) {
1385 			u_int start_addr;
1386 
1387 			start_addr = 32 * (ahc->channel - 'A');
1388 
1389 			have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
1390 							start_addr,
1391 							sizeof(*sc)/2);
1392 
1393 			if (have_seeprom)
1394 				have_seeprom = ahc_verify_cksum(sc);
1395 
1396 			if (have_seeprom != 0 || sd.sd_chip == C56_66) {
1397 				if (bootverbose) {
1398 					if (have_seeprom == 0)
1399 						printf ("checksum error\n");
1400 					else
1401 						printf ("done.\n");
1402 				}
1403 				break;
1404 			}
1405 			sd.sd_chip = C56_66;
1406 		}
1407 		ahc_release_seeprom(&sd);
1408 
1409 		/* Remember the SEEPROM type for later */
1410 		if (sd.sd_chip == C56_66)
1411 			ahc->flags |= AHC_LARGE_SEEPROM;
1412 	}
1413 
1414 	if (!have_seeprom) {
1415 		/*
1416 		 * Pull scratch ram settings and treat them as
1417 		 * if they are the contents of an seeprom if
1418 		 * the 'ADPT' signature is found in SCB2.
1419 		 * We manually compose the data as 16bit values
1420 		 * to avoid endian issues.
1421 		 */
1422 		ahc_outb(ahc, SCBPTR, 2);
1423 		if (ahc_inb(ahc, SCB_BASE) == 'A'
1424 		 && ahc_inb(ahc, SCB_BASE + 1) == 'D'
1425 		 && ahc_inb(ahc, SCB_BASE + 2) == 'P'
1426 		 && ahc_inb(ahc, SCB_BASE + 3) == 'T') {
1427 			uint16_t *sc_data;
1428 			int	  i;
1429 
1430 			sc_data = (uint16_t *)sc;
1431 			for (i = 0; i < 32; i++, sc_data++) {
1432 				int	j;
1433 
1434 				j = i * 2;
1435 				*sc_data = ahc_inb(ahc, SRAM_BASE + j)
1436 					 | ahc_inb(ahc, SRAM_BASE + j + 1) << 8;
1437 			}
1438 			have_seeprom = ahc_verify_cksum(sc);
1439 			if (have_seeprom)
1440 				ahc->flags |= AHC_SCB_CONFIG_USED;
1441 		}
1442 		/*
1443 		 * Clear any SCB parity errors in case this data and
1444 		 * its associated parity was not initialized by the BIOS
1445 		 */
1446 		ahc_outb(ahc, CLRINT, CLRPARERR);
1447 		ahc_outb(ahc, CLRINT, CLRBRKADRINT);
1448 	}
1449 
1450 	if (!have_seeprom) {
1451 		if (bootverbose)
1452 			printf("%s: No SEEPROM available.\n", ahc_name(ahc));
1453 		ahc->flags |= AHC_USEDEFAULTS;
1454 		free(ahc->seep_config, M_DEVBUF);
1455 		ahc->seep_config = NULL;
1456 		sc = NULL;
1457 	} else {
1458 		ahc_parse_pci_eeprom(ahc, sc);
1459 	}
1460 
1461 	/*
1462 	 * Cards that have the external logic necessary to talk to
1463 	 * a SEEPROM, are almost certain to have the remaining logic
1464 	 * necessary for auto-termination control.  This assumption
1465 	 * hasn't failed yet...
1466 	 */
1467 	have_autoterm = have_seeprom;
1468 
1469 	/*
1470 	 * Some low-cost chips have SEEPROM and auto-term control built
1471 	 * in, instead of using a GAL.  They can tell us directly
1472 	 * if the termination logic is enabled.
1473 	 */
1474 	if ((ahc->features & AHC_SPIOCAP) != 0) {
1475 		if ((ahc_inb(ahc, SPIOCAP) & SSPIOCPS) == 0)
1476 			have_autoterm = FALSE;
1477 	}
1478 
1479 	if (have_autoterm) {
1480 		ahc->flags |= AHC_HAS_TERM_LOGIC;
1481 		ahc_acquire_seeprom(ahc, &sd);
1482 		configure_termination(ahc, &sd, sc->adapter_control, sxfrctl1);
1483 		ahc_release_seeprom(&sd);
1484 	} else if (have_seeprom) {
1485 		*sxfrctl1 &= ~STPWEN;
1486 		if ((sc->adapter_control & CFSTERM) != 0)
1487 			*sxfrctl1 |= STPWEN;
1488 		if (bootverbose)
1489 			printf("%s: Low byte termination %sabled\n",
1490 			       ahc_name(ahc),
1491 			       (*sxfrctl1 & STPWEN) ? "en" : "dis");
1492 	}
1493 }
1494 
1495 static void
1496 ahc_parse_pci_eeprom(struct ahc_softc *ahc, struct seeprom_config *sc)
1497 {
1498 	/*
1499 	 * Put the data we've collected down into SRAM
1500 	 * where ahc_init will find it.
1501 	 */
1502 	int	 i;
1503 	int	 max_targ = sc->max_targets & CFMAXTARG;
1504 	u_int	 scsi_conf;
1505 	uint16_t discenable;
1506 	uint16_t ultraenb;
1507 
1508 	discenable = 0;
1509 	ultraenb = 0;
1510 	if ((sc->adapter_control & CFULTRAEN) != 0) {
1511 		/*
1512 		 * Determine if this adapter has a "newstyle"
1513 		 * SEEPROM format.
1514 		 */
1515 		for (i = 0; i < max_targ; i++) {
1516 			if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0) {
1517 				ahc->flags |= AHC_NEWEEPROM_FMT;
1518 				break;
1519 			}
1520 		}
1521 	}
1522 
1523 	for (i = 0; i < max_targ; i++) {
1524 		u_int     scsirate;
1525 		uint16_t target_mask;
1526 
1527 		target_mask = 0x01 << i;
1528 		if (sc->device_flags[i] & CFDISC)
1529 			discenable |= target_mask;
1530 		if ((ahc->flags & AHC_NEWEEPROM_FMT) != 0) {
1531 			if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0)
1532 				ultraenb |= target_mask;
1533 		} else if ((sc->adapter_control & CFULTRAEN) != 0) {
1534 			ultraenb |= target_mask;
1535 		}
1536 		if ((sc->device_flags[i] & CFXFER) == 0x04
1537 		 && (ultraenb & target_mask) != 0) {
1538 			/* Treat 10MHz as a non-ultra speed */
1539 			sc->device_flags[i] &= ~CFXFER;
1540 		 	ultraenb &= ~target_mask;
1541 		}
1542 		if ((ahc->features & AHC_ULTRA2) != 0) {
1543 			u_int offset;
1544 
1545 			if (sc->device_flags[i] & CFSYNCH)
1546 				offset = MAX_OFFSET_ULTRA2;
1547 			else
1548 				offset = 0;
1549 			ahc_outb(ahc, TARG_OFFSET + i, offset);
1550 
1551 			/*
1552 			 * The ultra enable bits contain the
1553 			 * high bit of the ultra2 sync rate
1554 			 * field.
1555 			 */
1556 			scsirate = (sc->device_flags[i] & CFXFER)
1557 				 | ((ultraenb & target_mask) ? 0x8 : 0x0);
1558 			if (sc->device_flags[i] & CFWIDEB)
1559 				scsirate |= WIDEXFER;
1560 		} else {
1561 			scsirate = (sc->device_flags[i] & CFXFER) << 4;
1562 			if (sc->device_flags[i] & CFSYNCH)
1563 				scsirate |= SOFS;
1564 			if (sc->device_flags[i] & CFWIDEB)
1565 				scsirate |= WIDEXFER;
1566 		}
1567 		ahc_outb(ahc, TARG_SCSIRATE + i, scsirate);
1568 	}
1569 	ahc->our_id = sc->brtime_id & CFSCSIID;
1570 
1571 	scsi_conf = (ahc->our_id & 0x7);
1572 	if (sc->adapter_control & CFSPARITY)
1573 		scsi_conf |= ENSPCHK;
1574 	if (sc->adapter_control & CFRESETB)
1575 		scsi_conf |= RESET_SCSI;
1576 
1577 	ahc->flags |= (sc->adapter_control & CFBOOTCHAN) >> CFBOOTCHANSHIFT;
1578 
1579 	if (sc->bios_control & CFEXTEND)
1580 		ahc->flags |= AHC_EXTENDED_TRANS_A;
1581 
1582 	if (sc->bios_control & CFBIOSEN)
1583 		ahc->flags |= AHC_BIOS_ENABLED;
1584 	if (ahc->features & AHC_ULTRA
1585 	 && (ahc->flags & AHC_NEWEEPROM_FMT) == 0) {
1586 		/* Should we enable Ultra mode? */
1587 		if (!(sc->adapter_control & CFULTRAEN))
1588 			/* Treat us as a non-ultra card */
1589 			ultraenb = 0;
1590 	}
1591 
1592 	if (sc->signature == CFSIGNATURE
1593 	 || sc->signature == CFSIGNATURE2) {
1594 		uint32_t devconfig;
1595 
1596 		/* Honor the STPWLEVEL settings */
1597 		devconfig = aic_pci_read_config(ahc->dev_softc,
1598 						DEVCONFIG, /*bytes*/4);
1599 		devconfig &= ~STPWLEVEL;
1600 		if ((sc->bios_control & CFSTPWLEVEL) != 0)
1601 			devconfig |= STPWLEVEL;
1602 		aic_pci_write_config(ahc->dev_softc, DEVCONFIG,
1603 				     devconfig, /*bytes*/4);
1604 	}
1605 	/* Set SCSICONF info */
1606 	ahc_outb(ahc, SCSICONF, scsi_conf);
1607 	ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
1608 	ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
1609 	ahc_outb(ahc, ULTRA_ENB, ultraenb & 0xff);
1610 	ahc_outb(ahc, ULTRA_ENB + 1, (ultraenb >> 8) & 0xff);
1611 }
1612 
1613 static void
1614 configure_termination(struct ahc_softc *ahc,
1615 		      struct seeprom_descriptor *sd,
1616 		      u_int adapter_control,
1617 		      u_int *sxfrctl1)
1618 {
1619 	uint8_t brddat;
1620 
1621 	brddat = 0;
1622 
1623 	/*
1624 	 * Update the settings in sxfrctl1 to match the
1625 	 * termination settings
1626 	 */
1627 	*sxfrctl1 = 0;
1628 
1629 	/*
1630 	 * SEECS must be on for the GALS to latch
1631 	 * the data properly.  Be sure to leave MS
1632 	 * on or we will release the seeprom.
1633 	 */
1634 	SEEPROM_OUTB(sd, sd->sd_MS | sd->sd_CS);
1635 	if ((adapter_control & CFAUTOTERM) != 0
1636 	 || (ahc->features & AHC_NEW_TERMCTL) != 0) {
1637 		int internal50_present;
1638 		int internal68_present;
1639 		int externalcable_present;
1640 		int eeprom_present;
1641 		int enableSEC_low;
1642 		int enableSEC_high;
1643 		int enablePRI_low;
1644 		int enablePRI_high;
1645 		int sum;
1646 
1647 		enableSEC_low = 0;
1648 		enableSEC_high = 0;
1649 		enablePRI_low = 0;
1650 		enablePRI_high = 0;
1651 		if ((ahc->features & AHC_NEW_TERMCTL) != 0) {
1652 			ahc_new_term_detect(ahc, &enableSEC_low,
1653 					    &enableSEC_high,
1654 					    &enablePRI_low,
1655 					    &enablePRI_high,
1656 					    &eeprom_present);
1657 			if ((adapter_control & CFSEAUTOTERM) == 0) {
1658 				if (bootverbose)
1659 					printf("%s: Manual SE Termination\n",
1660 					       ahc_name(ahc));
1661 				enableSEC_low = (adapter_control & CFSELOWTERM);
1662 				enableSEC_high =
1663 				    (adapter_control & CFSEHIGHTERM);
1664 			}
1665 			if ((adapter_control & CFAUTOTERM) == 0) {
1666 				if (bootverbose)
1667 					printf("%s: Manual LVD Termination\n",
1668 					       ahc_name(ahc));
1669 				enablePRI_low = (adapter_control & CFSTERM);
1670 				enablePRI_high = (adapter_control & CFWSTERM);
1671 			}
1672 			/* Make the table calculations below happy */
1673 			internal50_present = 0;
1674 			internal68_present = 1;
1675 			externalcable_present = 1;
1676 		} else if ((ahc->features & AHC_SPIOCAP) != 0) {
1677 			aic785X_cable_detect(ahc, &internal50_present,
1678 					     &externalcable_present,
1679 					     &eeprom_present);
1680 			/* Can never support a wide connector. */
1681 			internal68_present = 0;
1682 		} else {
1683 			aic787X_cable_detect(ahc, &internal50_present,
1684 					     &internal68_present,
1685 					     &externalcable_present,
1686 					     &eeprom_present);
1687 		}
1688 
1689 		if ((ahc->features & AHC_WIDE) == 0)
1690 			internal68_present = 0;
1691 
1692 		if (bootverbose
1693 		 && (ahc->features & AHC_ULTRA2) == 0) {
1694 			printf("%s: internal 50 cable %s present",
1695 			       ahc_name(ahc),
1696 			       internal50_present ? "is":"not");
1697 
1698 			if ((ahc->features & AHC_WIDE) != 0)
1699 				printf(", internal 68 cable %s present",
1700 				       internal68_present ? "is":"not");
1701 			printf("\n%s: external cable %s present\n",
1702 			       ahc_name(ahc),
1703 			       externalcable_present ? "is":"not");
1704 		}
1705 		if (bootverbose)
1706 			printf("%s: BIOS eeprom %s present\n",
1707 			       ahc_name(ahc), eeprom_present ? "is" : "not");
1708 
1709 		if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) {
1710 			/*
1711 			 * The 50 pin connector is a separate bus,
1712 			 * so force it to always be terminated.
1713 			 * In the future, perform current sensing
1714 			 * to determine if we are in the middle of
1715 			 * a properly terminated bus.
1716 			 */
1717 			internal50_present = 0;
1718 		}
1719 
1720 		/*
1721 		 * Now set the termination based on what
1722 		 * we found.
1723 		 * Flash Enable = BRDDAT7
1724 		 * Secondary High Term Enable = BRDDAT6
1725 		 * Secondary Low Term Enable = BRDDAT5 (7890)
1726 		 * Primary High Term Enable = BRDDAT4 (7890)
1727 		 */
1728 		if ((ahc->features & AHC_ULTRA2) == 0
1729 		 && (internal50_present != 0)
1730 		 && (internal68_present != 0)
1731 		 && (externalcable_present != 0)) {
1732 			printf("%s: Illegal cable configuration!!. "
1733 			       "Only two connectors on the "
1734 			       "adapter may be used at a "
1735 			       "time!\n", ahc_name(ahc));
1736 
1737 			/*
1738 			 * Pretend there are no cables in the hope
1739 			 * that having all of the termination on
1740 			 * gives us a more stable bus.
1741 			 */
1742 		 	internal50_present = 0;
1743 			internal68_present = 0;
1744 			externalcable_present = 0;
1745 		}
1746 
1747 		if ((ahc->features & AHC_WIDE) != 0
1748 		 && ((externalcable_present == 0)
1749 		  || (internal68_present == 0)
1750 		  || (enableSEC_high != 0))) {
1751 			brddat |= BRDDAT6;
1752 			if (bootverbose) {
1753 				if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
1754 					printf("%s: 68 pin termination "
1755 					       "Enabled\n", ahc_name(ahc));
1756 				else
1757 					printf("%s: %sHigh byte termination "
1758 					       "Enabled\n", ahc_name(ahc),
1759 					       enableSEC_high ? "Secondary "
1760 							      : "");
1761 			}
1762 		}
1763 
1764 		sum = internal50_present + internal68_present
1765 		    + externalcable_present;
1766 		if (sum < 2 || (enableSEC_low != 0)) {
1767 			if ((ahc->features & AHC_ULTRA2) != 0)
1768 				brddat |= BRDDAT5;
1769 			else
1770 				*sxfrctl1 |= STPWEN;
1771 			if (bootverbose) {
1772 				if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
1773 					printf("%s: 50 pin termination "
1774 					       "Enabled\n", ahc_name(ahc));
1775 				else
1776 					printf("%s: %sLow byte termination "
1777 					       "Enabled\n", ahc_name(ahc),
1778 					       enableSEC_low ? "Secondary "
1779 							     : "");
1780 			}
1781 		}
1782 
1783 		if (enablePRI_low != 0) {
1784 			*sxfrctl1 |= STPWEN;
1785 			if (bootverbose)
1786 				printf("%s: Primary Low Byte termination "
1787 				       "Enabled\n", ahc_name(ahc));
1788 		}
1789 
1790 		/*
1791 		 * Setup STPWEN before setting up the rest of
1792 		 * the termination per the tech note on the U160 cards.
1793 		 */
1794 		ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
1795 
1796 		if (enablePRI_high != 0) {
1797 			brddat |= BRDDAT4;
1798 			if (bootverbose)
1799 				printf("%s: Primary High Byte "
1800 				       "termination Enabled\n",
1801 				       ahc_name(ahc));
1802 		}
1803 
1804 		write_brdctl(ahc, brddat);
1805 
1806 	} else {
1807 		if ((adapter_control & CFSTERM) != 0) {
1808 			*sxfrctl1 |= STPWEN;
1809 
1810 			if (bootverbose)
1811 				printf("%s: %sLow byte termination Enabled\n",
1812 				       ahc_name(ahc),
1813 				       (ahc->features & AHC_ULTRA2) ? "Primary "
1814 								    : "");
1815 		}
1816 
1817 		if ((adapter_control & CFWSTERM) != 0
1818 		 && (ahc->features & AHC_WIDE) != 0) {
1819 			brddat |= BRDDAT6;
1820 			if (bootverbose)
1821 				printf("%s: %sHigh byte termination Enabled\n",
1822 				       ahc_name(ahc),
1823 				       (ahc->features & AHC_ULTRA2)
1824 				     ? "Secondary " : "");
1825 		}
1826 
1827 		/*
1828 		 * Setup STPWEN before setting up the rest of
1829 		 * the termination per the tech note on the U160 cards.
1830 		 */
1831 		ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
1832 
1833 		if ((ahc->features & AHC_WIDE) != 0)
1834 			write_brdctl(ahc, brddat);
1835 	}
1836 	SEEPROM_OUTB(sd, sd->sd_MS); /* Clear CS */
1837 }
1838 
1839 static void
1840 ahc_new_term_detect(struct ahc_softc *ahc, int *enableSEC_low,
1841 		    int *enableSEC_high, int *enablePRI_low,
1842 		    int *enablePRI_high, int *eeprom_present)
1843 {
1844 	uint8_t brdctl;
1845 
1846 	/*
1847 	 * BRDDAT7 = Eeprom
1848 	 * BRDDAT6 = Enable Secondary High Byte termination
1849 	 * BRDDAT5 = Enable Secondary Low Byte termination
1850 	 * BRDDAT4 = Enable Primary high byte termination
1851 	 * BRDDAT3 = Enable Primary low byte termination
1852 	 */
1853 	brdctl = read_brdctl(ahc);
1854 	*eeprom_present = brdctl & BRDDAT7;
1855 	*enableSEC_high = (brdctl & BRDDAT6);
1856 	*enableSEC_low = (brdctl & BRDDAT5);
1857 	*enablePRI_high = (brdctl & BRDDAT4);
1858 	*enablePRI_low = (brdctl & BRDDAT3);
1859 }
1860 
1861 static void
1862 aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
1863 		     int *internal68_present, int *externalcable_present,
1864 		     int *eeprom_present)
1865 {
1866 	uint8_t brdctl;
1867 
1868 	/*
1869 	 * First read the status of our cables.
1870 	 * Set the rom bank to 0 since the
1871 	 * bank setting serves as a multiplexor
1872 	 * for the cable detection logic.
1873 	 * BRDDAT5 controls the bank switch.
1874 	 */
1875 	write_brdctl(ahc, 0);
1876 
1877 	/*
1878 	 * Now read the state of the internal
1879 	 * connectors.  BRDDAT6 is INT50 and
1880 	 * BRDDAT7 is INT68.
1881 	 */
1882 	brdctl = read_brdctl(ahc);
1883 	*internal50_present = (brdctl & BRDDAT6) ? 0 : 1;
1884 	*internal68_present = (brdctl & BRDDAT7) ? 0 : 1;
1885 
1886 	/*
1887 	 * Set the rom bank to 1 and determine
1888 	 * the other signals.
1889 	 */
1890 	write_brdctl(ahc, BRDDAT5);
1891 
1892 	/*
1893 	 * Now read the state of the external
1894 	 * connectors.  BRDDAT6 is EXT68 and
1895 	 * BRDDAT7 is EPROMPS.
1896 	 */
1897 	brdctl = read_brdctl(ahc);
1898 	*externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
1899 	*eeprom_present = (brdctl & BRDDAT7) ? 1 : 0;
1900 }
1901 
1902 static void
1903 aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
1904 		     int *externalcable_present, int *eeprom_present)
1905 {
1906 	uint8_t brdctl;
1907 	uint8_t spiocap;
1908 
1909 	spiocap = ahc_inb(ahc, SPIOCAP);
1910 	spiocap &= ~SOFTCMDEN;
1911 	spiocap |= EXT_BRDCTL;
1912 	ahc_outb(ahc, SPIOCAP, spiocap);
1913 	ahc_outb(ahc, BRDCTL, BRDRW|BRDCS);
1914 	ahc_flush_device_writes(ahc);
1915 	aic_delay(500);
1916 	ahc_outb(ahc, BRDCTL, 0);
1917 	ahc_flush_device_writes(ahc);
1918 	aic_delay(500);
1919 	brdctl = ahc_inb(ahc, BRDCTL);
1920 	*internal50_present = (brdctl & BRDDAT5) ? 0 : 1;
1921 	*externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
1922 	*eeprom_present = (ahc_inb(ahc, SPIOCAP) & EEPROM) ? 1 : 0;
1923 }
1924 
1925 int
1926 ahc_acquire_seeprom(struct ahc_softc *ahc, struct seeprom_descriptor *sd)
1927 {
1928 	int wait;
1929 
1930 	if ((ahc->features & AHC_SPIOCAP) != 0
1931 	 && (ahc_inb(ahc, SPIOCAP) & SEEPROM) == 0)
1932 		return (0);
1933 
1934 	/*
1935 	 * Request access of the memory port.  When access is
1936 	 * granted, SEERDY will go high.  We use a 1 second
1937 	 * timeout which should be near 1 second more than
1938 	 * is needed.  Reason: after the chip reset, there
1939 	 * should be no contention.
1940 	 */
1941 	SEEPROM_OUTB(sd, sd->sd_MS);
1942 	wait = 1000;  /* 1 second timeout in msec */
1943 	while (--wait && ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0)) {
1944 		aic_delay(1000);  /* delay 1 msec */
1945 	}
1946 	if ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0) {
1947 		SEEPROM_OUTB(sd, 0);
1948 		return (0);
1949 	}
1950 	return(1);
1951 }
1952 
1953 void
1954 ahc_release_seeprom(struct seeprom_descriptor *sd)
1955 {
1956 	/* Release access to the memory port and the serial EEPROM. */
1957 	SEEPROM_OUTB(sd, 0);
1958 }
1959 
1960 static void
1961 write_brdctl(struct ahc_softc *ahc, uint8_t value)
1962 {
1963 	uint8_t brdctl;
1964 
1965 	if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
1966 		brdctl = BRDSTB;
1967 	 	if (ahc->channel == 'B')
1968 			brdctl |= BRDCS;
1969 	} else if ((ahc->features & AHC_ULTRA2) != 0) {
1970 		brdctl = 0;
1971 	} else {
1972 		brdctl = BRDSTB|BRDCS;
1973 	}
1974 	ahc_outb(ahc, BRDCTL, brdctl);
1975 	ahc_flush_device_writes(ahc);
1976 	brdctl |= value;
1977 	ahc_outb(ahc, BRDCTL, brdctl);
1978 	ahc_flush_device_writes(ahc);
1979 	if ((ahc->features & AHC_ULTRA2) != 0)
1980 		brdctl |= BRDSTB_ULTRA2;
1981 	else
1982 		brdctl &= ~BRDSTB;
1983 	ahc_outb(ahc, BRDCTL, brdctl);
1984 	ahc_flush_device_writes(ahc);
1985 	if ((ahc->features & AHC_ULTRA2) != 0)
1986 		brdctl = 0;
1987 	else
1988 		brdctl &= ~BRDCS;
1989 	ahc_outb(ahc, BRDCTL, brdctl);
1990 }
1991 
1992 static uint8_t
1993 read_brdctl(struct ahc_softc *ahc)
1994 {
1995 	uint8_t brdctl;
1996 	uint8_t value;
1997 
1998 	if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
1999 		brdctl = BRDRW;
2000 	 	if (ahc->channel == 'B')
2001 			brdctl |= BRDCS;
2002 	} else if ((ahc->features & AHC_ULTRA2) != 0) {
2003 		brdctl = BRDRW_ULTRA2;
2004 	} else {
2005 		brdctl = BRDRW|BRDCS;
2006 	}
2007 	ahc_outb(ahc, BRDCTL, brdctl);
2008 	ahc_flush_device_writes(ahc);
2009 	value = ahc_inb(ahc, BRDCTL);
2010 	ahc_outb(ahc, BRDCTL, 0);
2011 	return (value);
2012 }
2013 
2014 static void
2015 ahc_pci_intr(struct ahc_softc *ahc)
2016 {
2017 	u_int error;
2018 	u_int status1;
2019 
2020 	error = ahc_inb(ahc, ERROR);
2021 	if ((error & PCIERRSTAT) == 0)
2022 		return;
2023 
2024 	status1 = aic_pci_read_config(ahc->dev_softc,
2025 				      PCIR_STATUS + 1, /*bytes*/1);
2026 
2027 	if ((status1 & ~DPE) != 0
2028 	 || (ahc->flags & AHC_DISABLE_PCI_PERR) == 0) {
2029 		printf("%s: PCI error Interrupt at seqaddr = 0x%x\n",
2030 		       ahc_name(ahc),
2031 		       ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8));
2032 	}
2033 
2034 	if (status1 & DPE
2035 	 && (ahc->flags & AHC_DISABLE_PCI_PERR) == 0) {
2036 		ahc->pci_target_perr_count++;
2037 		printf("%s: Data Parity Error Detected during address "
2038 		       "or write data phase\n", ahc_name(ahc));
2039 	}
2040 	if (status1 & SSE) {
2041 		printf("%s: Signal System Error Detected\n", ahc_name(ahc));
2042 	}
2043 	if (status1 & RMA) {
2044 		printf("%s: Received a Master Abort\n", ahc_name(ahc));
2045 	}
2046 	if (status1 & RTA) {
2047 		printf("%s: Received a Target Abort\n", ahc_name(ahc));
2048 	}
2049 	if (status1 & STA) {
2050 		printf("%s: Signaled a Target Abort\n", ahc_name(ahc));
2051 	}
2052 	if (status1 & DPR) {
2053 		printf("%s: Data Parity Error has been reported via PERR#\n",
2054 		       ahc_name(ahc));
2055 	}
2056 
2057 	/* Clear latched errors. */
2058 	aic_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
2059 			     status1, /*bytes*/1);
2060 
2061 	if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
2062 		printf("%s: Latched PCIERR interrupt with "
2063 		       "no status bits set\n", ahc_name(ahc));
2064 	} else {
2065 		ahc_outb(ahc, CLRINT, CLRPARERR);
2066 	}
2067 
2068 	if (ahc->pci_target_perr_count > AHC_PCI_TARGET_PERR_THRESH
2069 	 && (ahc->flags & AHC_DISABLE_PCI_PERR) == 0) {
2070 		printf(
2071 "%s: WARNING WARNING WARNING WARNING\n"
2072 "%s: Too many PCI parity errors observed as a target.\n"
2073 "%s: Some device on this PCI bus is generating bad parity.\n"
2074 "%s: This is an error *observed by*, not *generated by*, %s.\n"
2075 "%s: PCI parity error checking has been disabled.\n"
2076 "%s: WARNING WARNING WARNING WARNING\n",
2077 		       ahc_name(ahc), ahc_name(ahc), ahc_name(ahc),
2078 		       ahc_name(ahc), ahc_name(ahc), ahc_name(ahc),
2079 		       ahc_name(ahc));
2080 		ahc->seqctl |= FAILDIS;
2081 		ahc->flags |= AHC_DISABLE_PCI_PERR;
2082 		ahc_outb(ahc, SEQCTL, ahc->seqctl);
2083 	}
2084 	ahc_unpause(ahc);
2085 }
2086 
2087 static int
2088 ahc_pci_chip_init(struct ahc_softc *ahc)
2089 {
2090 	ahc_outb(ahc, DSCOMMAND0, ahc->bus_softc.pci_softc.dscommand0);
2091 	ahc_outb(ahc, DSPCISTATUS, ahc->bus_softc.pci_softc.dspcistatus);
2092 	if ((ahc->features & AHC_DT) != 0) {
2093 		u_int sfunct;
2094 
2095 		sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
2096 		ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
2097 		ahc_outb(ahc, OPTIONMODE, ahc->bus_softc.pci_softc.optionmode);
2098 		ahc_outw(ahc, TARGCRCCNT, ahc->bus_softc.pci_softc.targcrccnt);
2099 		ahc_outb(ahc, SFUNCT, sfunct);
2100 		ahc_outb(ahc, CRCCONTROL1,
2101 			 ahc->bus_softc.pci_softc.crccontrol1);
2102 	}
2103 	if ((ahc->features & AHC_MULTI_FUNC) != 0)
2104 		ahc_outb(ahc, SCBBADDR, ahc->bus_softc.pci_softc.scbbaddr);
2105 
2106 	if ((ahc->features & AHC_ULTRA2) != 0)
2107 		ahc_outb(ahc, DFF_THRSH, ahc->bus_softc.pci_softc.dff_thrsh);
2108 
2109 	return (ahc_chip_init(ahc));
2110 }
2111 
2112 static int
2113 ahc_pci_suspend(struct ahc_softc *ahc)
2114 {
2115 	return (ahc_suspend(ahc));
2116 }
2117 
2118 static int
2119 ahc_pci_resume(struct ahc_softc *ahc)
2120 {
2121 
2122 	aic_power_state_change(ahc, AIC_POWER_STATE_D0);
2123 
2124 	/*
2125 	 * We assume that the OS has restored our register
2126 	 * mappings, etc.  Just update the config space registers
2127 	 * that the OS doesn't know about and rely on our chip
2128 	 * reset handler to handle the rest.
2129 	 */
2130 	aic_pci_write_config(ahc->dev_softc, DEVCONFIG,
2131 			     ahc->bus_softc.pci_softc.devconfig, /*bytes*/4);
2132 	aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
2133 			     ahc->bus_softc.pci_softc.command, /*bytes*/1);
2134 	aic_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
2135 			     ahc->bus_softc.pci_softc.csize_lattime,
2136 			     /*bytes*/1);
2137 	if ((ahc->flags & AHC_HAS_TERM_LOGIC) != 0) {
2138 		struct	seeprom_descriptor sd;
2139 		u_int	sxfrctl1;
2140 
2141 		sd.sd_ahc = ahc;
2142 		sd.sd_control_offset = SEECTL;
2143 		sd.sd_status_offset = SEECTL;
2144 		sd.sd_dataout_offset = SEECTL;
2145 
2146 		ahc_acquire_seeprom(ahc, &sd);
2147 		configure_termination(ahc, &sd,
2148 				      ahc->seep_config->adapter_control,
2149 				      &sxfrctl1);
2150 		ahc_release_seeprom(&sd);
2151 	}
2152 	return (ahc_resume(ahc));
2153 }
2154 
2155 static int
2156 ahc_aic785X_setup(struct ahc_softc *ahc)
2157 {
2158 	aic_dev_softc_t pci;
2159 	uint8_t rev;
2160 
2161 	pci = ahc->dev_softc;
2162 	ahc->channel = 'A';
2163 	ahc->chip = AHC_AIC7850;
2164 	ahc->features = AHC_AIC7850_FE;
2165 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
2166 	rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2167 	if (rev >= 1)
2168 		ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
2169 	ahc->instruction_ram_size = 512;
2170 	return (0);
2171 }
2172 
2173 static int
2174 ahc_aic7860_setup(struct ahc_softc *ahc)
2175 {
2176 	aic_dev_softc_t pci;
2177 	uint8_t rev;
2178 
2179 	pci = ahc->dev_softc;
2180 	ahc->channel = 'A';
2181 	ahc->chip = AHC_AIC7860;
2182 	ahc->features = AHC_AIC7860_FE;
2183 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
2184 	rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2185 	if (rev >= 1)
2186 		ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
2187 	ahc->instruction_ram_size = 512;
2188 	return (0);
2189 }
2190 
2191 static int
2192 ahc_apa1480_setup(struct ahc_softc *ahc)
2193 {
2194 	int error;
2195 
2196 	error = ahc_aic7860_setup(ahc);
2197 	if (error != 0)
2198 		return (error);
2199 	ahc->features |= AHC_REMOVABLE;
2200 	return (0);
2201 }
2202 
2203 static int
2204 ahc_aic7870_setup(struct ahc_softc *ahc)
2205 {
2206 
2207 	ahc->channel = 'A';
2208 	ahc->chip = AHC_AIC7870;
2209 	ahc->features = AHC_AIC7870_FE;
2210 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
2211 	ahc->instruction_ram_size = 512;
2212 	return (0);
2213 }
2214 
2215 static int
2216 ahc_aha394X_setup(struct ahc_softc *ahc)
2217 {
2218 	int error;
2219 
2220 	error = ahc_aic7870_setup(ahc);
2221 	if (error == 0)
2222 		error = ahc_aha394XX_setup(ahc);
2223 	return (error);
2224 }
2225 
2226 static int
2227 ahc_aha398X_setup(struct ahc_softc *ahc)
2228 {
2229 	int error;
2230 
2231 	error = ahc_aic7870_setup(ahc);
2232 	if (error == 0)
2233 		error = ahc_aha398XX_setup(ahc);
2234 	return (error);
2235 }
2236 
2237 static int
2238 ahc_aha494X_setup(struct ahc_softc *ahc)
2239 {
2240 	int error;
2241 
2242 	error = ahc_aic7870_setup(ahc);
2243 	if (error == 0)
2244 		error = ahc_aha494XX_setup(ahc);
2245 	return (error);
2246 }
2247 
2248 static int
2249 ahc_aic7880_setup(struct ahc_softc *ahc)
2250 {
2251 	aic_dev_softc_t pci;
2252 	uint8_t rev;
2253 
2254 	pci = ahc->dev_softc;
2255 	ahc->channel = 'A';
2256 	ahc->chip = AHC_AIC7880;
2257 	ahc->features = AHC_AIC7880_FE;
2258 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
2259 	rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2260 	if (rev >= 1) {
2261 		ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
2262 	} else {
2263 		ahc->bugs |= AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
2264 	}
2265 	ahc->instruction_ram_size = 512;
2266 	return (0);
2267 }
2268 
2269 static int
2270 ahc_aha2940Pro_setup(struct ahc_softc *ahc)
2271 {
2272 
2273 	ahc->flags |= AHC_INT50_SPEEDFLEX;
2274 	return (ahc_aic7880_setup(ahc));
2275 }
2276 
2277 static int
2278 ahc_aha394XU_setup(struct ahc_softc *ahc)
2279 {
2280 	int error;
2281 
2282 	error = ahc_aic7880_setup(ahc);
2283 	if (error == 0)
2284 		error = ahc_aha394XX_setup(ahc);
2285 	return (error);
2286 }
2287 
2288 static int
2289 ahc_aha398XU_setup(struct ahc_softc *ahc)
2290 {
2291 	int error;
2292 
2293 	error = ahc_aic7880_setup(ahc);
2294 	if (error == 0)
2295 		error = ahc_aha398XX_setup(ahc);
2296 	return (error);
2297 }
2298 
2299 static int
2300 ahc_aic7890_setup(struct ahc_softc *ahc)
2301 {
2302 	aic_dev_softc_t pci;
2303 	uint8_t rev;
2304 
2305 	pci = ahc->dev_softc;
2306 	ahc->channel = 'A';
2307 	ahc->chip = AHC_AIC7890;
2308 	ahc->features = AHC_AIC7890_FE;
2309 	ahc->flags |= AHC_NEWEEPROM_FMT;
2310 	rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2311 	if (rev == 0)
2312 		ahc->bugs |= AHC_AUTOFLUSH_BUG|AHC_CACHETHEN_BUG;
2313 	ahc->instruction_ram_size = 768;
2314 	return (0);
2315 }
2316 
2317 static int
2318 ahc_aic7892_setup(struct ahc_softc *ahc)
2319 {
2320 
2321 	ahc->channel = 'A';
2322 	ahc->chip = AHC_AIC7892;
2323 	ahc->features = AHC_AIC7892_FE;
2324 	ahc->flags |= AHC_NEWEEPROM_FMT;
2325 	ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
2326 	ahc->instruction_ram_size = 1024;
2327 	return (0);
2328 }
2329 
2330 static int
2331 ahc_aic7895_setup(struct ahc_softc *ahc)
2332 {
2333 	aic_dev_softc_t pci;
2334 	uint8_t rev;
2335 
2336 	pci = ahc->dev_softc;
2337 	ahc->channel = aic_get_pci_function(pci) == 1 ? 'B' : 'A';
2338 	/*
2339 	 * The 'C' revision of the aic7895 has a few additional features.
2340 	 */
2341 	rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
2342 	if (rev >= 4) {
2343 		ahc->chip = AHC_AIC7895C;
2344 		ahc->features = AHC_AIC7895C_FE;
2345 	} else  {
2346 		u_int command;
2347 
2348 		ahc->chip = AHC_AIC7895;
2349 		ahc->features = AHC_AIC7895_FE;
2350 
2351 		/*
2352 		 * The BIOS disables the use of MWI transactions
2353 		 * since it does not have the MWI bug work around
2354 		 * we have.  Disabling MWI reduces performance, so
2355 		 * turn it on again.
2356 		 */
2357 		command = aic_pci_read_config(pci, PCIR_COMMAND, /*bytes*/1);
2358 		command |= PCIM_CMD_MWRICEN;
2359 		aic_pci_write_config(pci, PCIR_COMMAND, command, /*bytes*/1);
2360 		ahc->bugs |= AHC_PCI_MWI_BUG;
2361 	}
2362 	/*
2363 	 * XXX Does CACHETHEN really not work???  What about PCI retry?
2364 	 * on C level chips.  Need to test, but for now, play it safe.
2365 	 */
2366 	ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_PCI_2_1_RETRY_BUG
2367 		  |  AHC_CACHETHEN_BUG;
2368 
2369 #if 0
2370 	uint32_t devconfig;
2371 
2372 	/*
2373 	 * Cachesize must also be zero due to stray DAC
2374 	 * problem when sitting behind some bridges.
2375 	 */
2376 	aic_pci_write_config(pci, CSIZE_LATTIME, 0, /*bytes*/1);
2377 	devconfig = aic_pci_read_config(pci, DEVCONFIG, /*bytes*/1);
2378 	devconfig |= MRDCEN;
2379 	aic_pci_write_config(pci, DEVCONFIG, devconfig, /*bytes*/1);
2380 #endif
2381 	ahc->flags |= AHC_NEWEEPROM_FMT;
2382 	ahc->instruction_ram_size = 512;
2383 	return (0);
2384 }
2385 
2386 static int
2387 ahc_aic7896_setup(struct ahc_softc *ahc)
2388 {
2389 	aic_dev_softc_t pci;
2390 
2391 	pci = ahc->dev_softc;
2392 	ahc->channel = aic_get_pci_function(pci) == 1 ? 'B' : 'A';
2393 	ahc->chip = AHC_AIC7896;
2394 	ahc->features = AHC_AIC7896_FE;
2395 	ahc->flags |= AHC_NEWEEPROM_FMT;
2396 	ahc->bugs |= AHC_CACHETHEN_DIS_BUG;
2397 	ahc->instruction_ram_size = 768;
2398 	return (0);
2399 }
2400 
2401 static int
2402 ahc_aic7899_setup(struct ahc_softc *ahc)
2403 {
2404 	aic_dev_softc_t pci;
2405 
2406 	pci = ahc->dev_softc;
2407 	ahc->channel = aic_get_pci_function(pci) == 1 ? 'B' : 'A';
2408 	ahc->chip = AHC_AIC7899;
2409 	ahc->features = AHC_AIC7899_FE;
2410 	ahc->flags |= AHC_NEWEEPROM_FMT;
2411 	ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
2412 	ahc->instruction_ram_size = 1024;
2413 	return (0);
2414 }
2415 
2416 static int
2417 ahc_aha29160C_setup(struct ahc_softc *ahc)
2418 {
2419 	int error;
2420 
2421 	error = ahc_aic7899_setup(ahc);
2422 	if (error != 0)
2423 		return (error);
2424 	ahc->features |= AHC_REMOVABLE;
2425 	return (0);
2426 }
2427 
2428 static int
2429 ahc_raid_setup(struct ahc_softc *ahc)
2430 {
2431 	printf("RAID functionality unsupported\n");
2432 	return (ENXIO);
2433 }
2434 
2435 static int
2436 ahc_aha394XX_setup(struct ahc_softc *ahc)
2437 {
2438 	aic_dev_softc_t pci;
2439 
2440 	pci = ahc->dev_softc;
2441 	switch (aic_get_pci_slot(pci)) {
2442 	case AHC_394X_SLOT_CHANNEL_A:
2443 		ahc->channel = 'A';
2444 		break;
2445 	case AHC_394X_SLOT_CHANNEL_B:
2446 		ahc->channel = 'B';
2447 		break;
2448 	default:
2449 		printf("adapter at unexpected slot %d\n"
2450 		       "unable to map to a channel\n",
2451 		       aic_get_pci_slot(pci));
2452 		ahc->channel = 'A';
2453 	}
2454 	return (0);
2455 }
2456 
2457 static int
2458 ahc_aha398XX_setup(struct ahc_softc *ahc)
2459 {
2460 	aic_dev_softc_t pci;
2461 
2462 	pci = ahc->dev_softc;
2463 	switch (aic_get_pci_slot(pci)) {
2464 	case AHC_398X_SLOT_CHANNEL_A:
2465 		ahc->channel = 'A';
2466 		break;
2467 	case AHC_398X_SLOT_CHANNEL_B:
2468 		ahc->channel = 'B';
2469 		break;
2470 	case AHC_398X_SLOT_CHANNEL_C:
2471 		ahc->channel = 'C';
2472 		break;
2473 	default:
2474 		printf("adapter at unexpected slot %d\n"
2475 		       "unable to map to a channel\n",
2476 		       aic_get_pci_slot(pci));
2477 		ahc->channel = 'A';
2478 		break;
2479 	}
2480 	ahc->flags |= AHC_LARGE_SEEPROM;
2481 	return (0);
2482 }
2483 
2484 static int
2485 ahc_aha494XX_setup(struct ahc_softc *ahc)
2486 {
2487 	aic_dev_softc_t pci;
2488 
2489 	pci = ahc->dev_softc;
2490 	switch (aic_get_pci_slot(pci)) {
2491 	case AHC_494X_SLOT_CHANNEL_A:
2492 		ahc->channel = 'A';
2493 		break;
2494 	case AHC_494X_SLOT_CHANNEL_B:
2495 		ahc->channel = 'B';
2496 		break;
2497 	case AHC_494X_SLOT_CHANNEL_C:
2498 		ahc->channel = 'C';
2499 		break;
2500 	case AHC_494X_SLOT_CHANNEL_D:
2501 		ahc->channel = 'D';
2502 		break;
2503 	default:
2504 		printf("adapter at unexpected slot %d\n"
2505 		       "unable to map to a channel\n",
2506 		       aic_get_pci_slot(pci));
2507 		ahc->channel = 'A';
2508 	}
2509 	ahc->flags |= AHC_LARGE_SEEPROM;
2510 	return (0);
2511 }
2512