1 /*-
2 * Product specific probe and attach routines for:
3 * 27/284X and aic7770 motherboard SCSI controllers
4 *
5 * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification.
14 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
15 * substantially similar to the "NO WARRANTY" disclaimer below
16 * ("Disclaimer") and any redistribution must be conditioned upon
17 * including a substantially similar Disclaimer requirement for further
18 * binary redistribution.
19 * 3. Neither the names of the above-listed copyright holders nor the names
20 * of any contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * Alternatively, this software may be distributed under the terms of the
24 * GNU General Public License ("GPL") version 2 as published by the Free
25 * Software Foundation.
26 *
27 * NO WARRANTY
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
37 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGES.
39 *
40 * $Id: //depot/aic7xxx/aic7xxx/aic7770.c#34 $
41 */
42
43 #ifdef __linux__
44 #include "aic7xxx_osm.h"
45 #include "aic7xxx_inline.h"
46 #include "aic7xxx_93cx6.h"
47 #else
48 #include <sys/cdefs.h>
49 __FBSDID("$FreeBSD: releng/8.0/sys/dev/aic7xxx/aic7770.c 168807 2007-04-17 06:26:25Z scottl $");
50 #include <dev/aic7xxx/aic7xxx_osm.h>
51 #include <dev/aic7xxx/aic7xxx_inline.h>
52 #include <dev/aic7xxx/aic7xxx_93cx6.h>
53 #endif
54
55 #define ID_AIC7770 0x04907770
56 #define ID_AHA_274x 0x04907771
57 #define ID_AHA_284xB 0x04907756 /* BIOS enabled */
58 #define ID_AHA_284x 0x04907757 /* BIOS disabled*/
59 #define ID_OLV_274x 0x04907782 /* Olivetti OEM */
60 #define ID_OLV_274xD 0x04907783 /* Olivetti OEM (Differential) */
61
62 static int aic7770_chip_init(struct ahc_softc *ahc);
63 static int aic7770_suspend(struct ahc_softc *ahc);
64 static int aic7770_resume(struct ahc_softc *ahc);
65 static int aha2840_load_seeprom(struct ahc_softc *ahc);
66 static ahc_device_setup_t ahc_aic7770_VL_setup;
67 static ahc_device_setup_t ahc_aic7770_EISA_setup;
68 static ahc_device_setup_t ahc_aic7770_setup;
69
70 struct aic7770_identity aic7770_ident_table[] =
71 {
72 {
73 ID_AHA_274x,
74 0xFFFFFFFF,
75 "Adaptec 274X SCSI adapter",
76 ahc_aic7770_EISA_setup
77 },
78 {
79 ID_AHA_284xB,
80 0xFFFFFFFE,
81 "Adaptec 284X SCSI adapter",
82 ahc_aic7770_VL_setup
83 },
84 {
85 ID_AHA_284x,
86 0xFFFFFFFE,
87 "Adaptec 284X SCSI adapter (BIOS Disabled)",
88 ahc_aic7770_VL_setup
89 },
90 {
91 ID_OLV_274x,
92 0xFFFFFFFF,
93 "Adaptec (Olivetti OEM) 274X SCSI adapter",
94 ahc_aic7770_EISA_setup
95 },
96 {
97 ID_OLV_274xD,
98 0xFFFFFFFF,
99 "Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
100 ahc_aic7770_EISA_setup
101 },
102 /* Generic chip probes for devices we don't know 'exactly' */
103 {
104 ID_AIC7770,
105 0xFFFFFFFF,
106 "Adaptec aic7770 SCSI adapter",
107 ahc_aic7770_EISA_setup
108 }
109 };
110 const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table);
111
112 struct aic7770_identity *
113 aic7770_find_device(uint32_t id)
114 {
115 struct aic7770_identity *entry;
116 int i;
117
118 for (i = 0; i < ahc_num_aic7770_devs; i++) {
119 entry = &aic7770_ident_table[i];
120 if (entry->full_id == (id & entry->id_mask))
121 return (entry);
122 }
123 return (NULL);
124 }
125
126 int
127 aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
128 {
129 int error;
130 int have_seeprom;
131 u_int hostconf;
132 u_int irq;
133 u_int intdef;
134
135 error = entry->setup(ahc);
136 have_seeprom = 0;
137 if (error != 0)
138 return (error);
139
140 error = aic7770_map_registers(ahc, io);
141 if (error != 0)
142 return (error);
143
144 /*
145 * Before we continue probing the card, ensure that
146 * its interrupts are *disabled*. We don't want
147 * a misstep to hang the machine in an interrupt
148 * storm.
149 */
150 ahc_intr_enable(ahc, FALSE);
151
152 ahc->description = entry->name;
153 error = ahc_softc_init(ahc);
154 if (error != 0)
155 return (error);
156
157 ahc->bus_chip_init = aic7770_chip_init;
158 ahc->bus_suspend = aic7770_suspend;
159 ahc->bus_resume = aic7770_resume;
160
161 error = ahc_reset(ahc, /*reinit*/FALSE);
162 if (error != 0)
163 return (error);
164
165 /* Make sure we have a valid interrupt vector */
166 intdef = ahc_inb(ahc, INTDEF);
167 irq = intdef & VECTOR;
168 switch (irq) {
169 case 9:
170 case 10:
171 case 11:
172 case 12:
173 case 14:
174 case 15:
175 break;
176 default:
177 printf("aic7770_config: invalid irq setting %d\n", intdef);
178 return (ENXIO);
179 }
180
181 if ((intdef & EDGE_TRIG) != 0)
182 ahc->flags |= AHC_EDGE_INTERRUPT;
183
184 switch (ahc->chip & (AHC_EISA|AHC_VL)) {
185 case AHC_EISA:
186 {
187 u_int biosctrl;
188 u_int scsiconf;
189 u_int scsiconf1;
190
191 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
192 scsiconf = ahc_inb(ahc, SCSICONF);
193 scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
194
195 /* Get the primary channel information */
196 if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
197 ahc->flags |= 1;
198
199 if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
200 ahc->flags |= AHC_USEDEFAULTS;
201 } else {
202 if ((ahc->features & AHC_WIDE) != 0) {
203 ahc->our_id = scsiconf1 & HWSCSIID;
204 if (scsiconf & TERM_ENB)
205 ahc->flags |= AHC_TERM_ENB_A;
206 } else {
207 ahc->our_id = scsiconf & HSCSIID;
208 ahc->our_id_b = scsiconf1 & HSCSIID;
209 if (scsiconf & TERM_ENB)
210 ahc->flags |= AHC_TERM_ENB_A;
211 if (scsiconf1 & TERM_ENB)
212 ahc->flags |= AHC_TERM_ENB_B;
213 }
214 }
215 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
216 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
217 break;
218 }
219 case AHC_VL:
220 {
221 have_seeprom = aha2840_load_seeprom(ahc);
222 break;
223 }
224 default:
225 break;
226 }
227 if (have_seeprom == 0) {
228 free(ahc->seep_config, M_DEVBUF);
229 ahc->seep_config = NULL;
230 }
231
232 /*
233 * Ensure autoflush is enabled
234 */
235 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
236
237 /* Setup the FIFO threshold and the bus off time */
238 hostconf = ahc_inb(ahc, HOSTCONF);
239 ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
240 ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
241
242 ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
243 ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
244
245 /*
246 * Generic aic7xxx initialization.
247 */
248 error = ahc_init(ahc);
249 if (error != 0)
250 return (error);
251
252 error = aic7770_map_int(ahc, irq);
253 if (error != 0)
254 return (error);
255
256 ahc_lock(ahc);
257 /*
258 * Link this softc in with all other ahc instances.
259 */
260 ahc_softc_insert(ahc);
261
262 /*
263 * Enable the board's BUS drivers
264 */
265 ahc_outb(ahc, BCTL, ENABLE);
266
267 ahc_unlock(ahc);
268
269 return (0);
270 }
271
272 static int
273 aic7770_chip_init(struct ahc_softc *ahc)
274 {
275 ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);
276 ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);
277 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
278 ahc_outb(ahc, BCTL, ENABLE);
279 return (ahc_chip_init(ahc));
280 }
281
282 static int
283 aic7770_suspend(struct ahc_softc *ahc)
284 {
285 return (ahc_suspend(ahc));
286 }
287
288 static int
289 aic7770_resume(struct ahc_softc *ahc)
290 {
291 return (ahc_resume(ahc));
292 }
293
294 /*
295 * Read the 284x SEEPROM.
296 */
297 static int
298 aha2840_load_seeprom(struct ahc_softc *ahc)
299 {
300 struct seeprom_descriptor sd;
301 struct seeprom_config *sc;
302 int have_seeprom;
303 uint8_t scsi_conf;
304
305 sd.sd_ahc = ahc;
306 sd.sd_control_offset = SEECTL_2840;
307 sd.sd_status_offset = STATUS_2840;
308 sd.sd_dataout_offset = STATUS_2840;
309 sd.sd_chip = C46;
310 sd.sd_MS = 0;
311 sd.sd_RDY = EEPROM_TF;
312 sd.sd_CS = CS_2840;
313 sd.sd_CK = CK_2840;
314 sd.sd_DO = DO_2840;
315 sd.sd_DI = DI_2840;
316 sc = ahc->seep_config;
317
318 if (bootverbose)
319 printf("%s: Reading SEEPROM...", ahc_name(ahc));
320 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
321 /*start_addr*/0, sizeof(*sc)/2);
322
323 if (have_seeprom) {
324
325 if (ahc_verify_cksum(sc) == 0) {
326 if(bootverbose)
327 printf ("checksum error\n");
328 have_seeprom = 0;
329 } else if (bootverbose) {
330 printf("done.\n");
331 }
332 }
333
334 if (!have_seeprom) {
335 if (bootverbose)
336 printf("%s: No SEEPROM available\n", ahc_name(ahc));
337 ahc->flags |= AHC_USEDEFAULTS;
338 } else {
339 /*
340 * Put the data we've collected down into SRAM
341 * where ahc_init will find it.
342 */
343 int i;
344 int max_targ;
345 uint16_t discenable;
346
347 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
348 discenable = 0;
349 for (i = 0; i < max_targ; i++){
350 uint8_t target_settings;
351
352 target_settings = (sc->device_flags[i] & CFXFER) << 4;
353 if (sc->device_flags[i] & CFSYNCH)
354 target_settings |= SOFS;
355 if (sc->device_flags[i] & CFWIDEB)
356 target_settings |= WIDEXFER;
357 if (sc->device_flags[i] & CFDISC)
358 discenable |= (0x01 << i);
359 ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
360 }
361 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
362 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
363
364 ahc->our_id = sc->brtime_id & CFSCSIID;
365
366 scsi_conf = (ahc->our_id & 0x7);
367 if (sc->adapter_control & CFSPARITY)
368 scsi_conf |= ENSPCHK;
369 if (sc->adapter_control & CFRESETB)
370 scsi_conf |= RESET_SCSI;
371
372 if (sc->bios_control & CF284XEXTEND)
373 ahc->flags |= AHC_EXTENDED_TRANS_A;
374 /* Set SCSICONF info */
375 ahc_outb(ahc, SCSICONF, scsi_conf);
376
377 if (sc->adapter_control & CF284XSTERM)
378 ahc->flags |= AHC_TERM_ENB_A;
379 }
380 return (have_seeprom);
381 }
382
383 static int
384 ahc_aic7770_VL_setup(struct ahc_softc *ahc)
385 {
386 int error;
387
388 error = ahc_aic7770_setup(ahc);
389 ahc->chip |= AHC_VL;
390 return (error);
391 }
392
393 static int
394 ahc_aic7770_EISA_setup(struct ahc_softc *ahc)
395 {
396 int error;
397
398 error = ahc_aic7770_setup(ahc);
399 ahc->chip |= AHC_EISA;
400 return (error);
401 }
402
403 static int
404 ahc_aic7770_setup(struct ahc_softc *ahc)
405 {
406 ahc->channel = 'A';
407 ahc->channel_b = 'B';
408 ahc->chip = AHC_AIC7770;
409 ahc->features = AHC_AIC7770_FE;
410 ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
411 ahc->flags |= AHC_PAGESCBS;
412 ahc->instruction_ram_size = 448;
413 return (0);
414 }
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