2 * Product specific probe and attach routines for:
3 * 27/284X and aic7770 motherboard SCSI controllers
5 * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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13 * without modification.
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15 * substantially similar to the "NO WARRANTY" disclaimer below
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17 * including a substantially similar Disclaimer requirement for further
18 * binary redistribution.
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20 * of any contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
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
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40 * $Id: //depot/aic7xxx/aic7xxx/aic7770.c#32 $
42 * $FreeBSD: src/sys/dev/aic7xxx/aic7770.c,v 1.1.2.9 2003/06/10 03:26:07 gibbs Exp $
43 * $DragonFly: src/sys/dev/disk/aic7xxx/aic7770.c,v 1.3 2003/08/07 21:16:51 dillon Exp $
47 #include "aic7xxx_osm.h"
48 #include "aic7xxx_inline.h"
49 #include "aic7xxx_93cx6.h"
51 #include "aic7xxx_osm.h"
52 #include "aic7xxx_inline.h"
53 #include "aic7xxx_93cx6.h"
56 #define ID_AIC7770 0x04907770
57 #define ID_AHA_274x 0x04907771
58 #define ID_AHA_284xB 0x04907756 /* BIOS enabled */
59 #define ID_AHA_284x 0x04907757 /* BIOS disabled*/
60 #define ID_OLV_274x 0x04907782 /* Olivetti OEM */
61 #define ID_OLV_274xD 0x04907783 /* Olivetti OEM (Differential) */
63 static int aic7770_chip_init(struct ahc_softc *ahc);
64 static int aic7770_suspend(struct ahc_softc *ahc);
65 static int aic7770_resume(struct ahc_softc *ahc);
66 static int aha2840_load_seeprom(struct ahc_softc *ahc);
67 static ahc_device_setup_t ahc_aic7770_VL_setup;
68 static ahc_device_setup_t ahc_aic7770_EISA_setup;;
69 static ahc_device_setup_t ahc_aic7770_setup;
71 struct aic7770_identity aic7770_ident_table[] =
76 "Adaptec 274X SCSI adapter",
77 ahc_aic7770_EISA_setup
82 "Adaptec 284X SCSI adapter",
88 "Adaptec 284X SCSI adapter (BIOS Disabled)",
94 "Adaptec (Olivetti OEM) 274X SCSI adapter",
95 ahc_aic7770_EISA_setup
100 "Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
101 ahc_aic7770_EISA_setup
103 /* Generic chip probes for devices we don't know 'exactly' */
107 "Adaptec aic7770 SCSI adapter",
108 ahc_aic7770_EISA_setup
111 const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table);
113 struct aic7770_identity *
114 aic7770_find_device(uint32_t id)
116 struct aic7770_identity *entry;
119 for (i = 0; i < ahc_num_aic7770_devs; i++) {
120 entry = &aic7770_ident_table[i];
121 if (entry->full_id == (id & entry->id_mask))
128 aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
137 error = entry->setup(ahc);
142 error = aic7770_map_registers(ahc, io);
147 * Before we continue probing the card, ensure that
148 * its interrupts are *disabled*. We don't want
149 * a misstep to hang the machine in an interrupt
152 ahc_intr_enable(ahc, FALSE);
154 ahc->description = entry->name;
155 error = ahc_softc_init(ahc);
159 ahc->bus_chip_init = aic7770_chip_init;
160 ahc->bus_suspend = aic7770_suspend;
161 ahc->bus_resume = aic7770_resume;
163 error = ahc_reset(ahc, /*reinit*/FALSE);
167 /* Make sure we have a valid interrupt vector */
168 intdef = ahc_inb(ahc, INTDEF);
169 irq = intdef & VECTOR;
179 printf("aic7770_config: illegal irq setting %d\n", intdef);
183 if ((intdef & EDGE_TRIG) != 0)
184 ahc->flags |= AHC_EDGE_INTERRUPT;
186 switch (ahc->chip & (AHC_EISA|AHC_VL)) {
193 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
194 scsiconf = ahc_inb(ahc, SCSICONF);
195 scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
197 /* Get the primary channel information */
198 if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
201 if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
202 ahc->flags |= AHC_USEDEFAULTS;
204 if ((ahc->features & AHC_WIDE) != 0) {
205 ahc->our_id = scsiconf1 & HWSCSIID;
206 if (scsiconf & TERM_ENB)
207 ahc->flags |= AHC_TERM_ENB_A;
209 ahc->our_id = scsiconf & HSCSIID;
210 ahc->our_id_b = scsiconf1 & HSCSIID;
211 if (scsiconf & TERM_ENB)
212 ahc->flags |= AHC_TERM_ENB_A;
213 if (scsiconf1 & TERM_ENB)
214 ahc->flags |= AHC_TERM_ENB_B;
217 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
218 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
223 have_seeprom = aha2840_load_seeprom(ahc);
229 if (have_seeprom == 0) {
230 free(ahc->seep_config, M_DEVBUF);
231 ahc->seep_config = NULL;
235 * Ensure autoflush is enabled
237 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
239 /* Setup the FIFO threshold and the bus off time */
240 hostconf = ahc_inb(ahc, HOSTCONF);
241 ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
242 ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
244 ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
245 ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
248 * Generic aic7xxx initialization.
250 error = ahc_init(ahc);
254 error = aic7770_map_int(ahc, irq);
260 * Link this softc in with all other ahc instances.
262 ahc_softc_insert(ahc);
265 * Enable the board's BUS drivers
267 ahc_outb(ahc, BCTL, ENABLE);
275 aic7770_chip_init(struct ahc_softc *ahc)
277 ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);
278 ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);
279 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
280 ahc_outb(ahc, BCTL, ENABLE);
281 return (ahc_chip_init(ahc));
285 aic7770_suspend(struct ahc_softc *ahc)
287 return (ahc_suspend(ahc));
291 aic7770_resume(struct ahc_softc *ahc)
293 return (ahc_resume(ahc));
297 * Read the 284x SEEPROM.
300 aha2840_load_seeprom(struct ahc_softc *ahc)
302 struct seeprom_descriptor sd;
303 struct seeprom_config *sc;
308 sd.sd_control_offset = SEECTL_2840;
309 sd.sd_status_offset = STATUS_2840;
310 sd.sd_dataout_offset = STATUS_2840;
313 sd.sd_RDY = EEPROM_TF;
318 sc = ahc->seep_config;
321 printf("%s: Reading SEEPROM...", ahc_name(ahc));
322 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
323 /*start_addr*/0, sizeof(*sc)/2);
327 if (ahc_verify_cksum(sc) == 0) {
329 printf ("checksum error\n");
331 } else if (bootverbose) {
338 printf("%s: No SEEPROM available\n", ahc_name(ahc));
339 ahc->flags |= AHC_USEDEFAULTS;
342 * Put the data we've collected down into SRAM
343 * where ahc_init will find it.
349 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
351 for (i = 0; i < max_targ; i++){
352 uint8_t target_settings;
354 target_settings = (sc->device_flags[i] & CFXFER) << 4;
355 if (sc->device_flags[i] & CFSYNCH)
356 target_settings |= SOFS;
357 if (sc->device_flags[i] & CFWIDEB)
358 target_settings |= WIDEXFER;
359 if (sc->device_flags[i] & CFDISC)
360 discenable |= (0x01 << i);
361 ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
363 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
364 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
366 ahc->our_id = sc->brtime_id & CFSCSIID;
368 scsi_conf = (ahc->our_id & 0x7);
369 if (sc->adapter_control & CFSPARITY)
370 scsi_conf |= ENSPCHK;
371 if (sc->adapter_control & CFRESETB)
372 scsi_conf |= RESET_SCSI;
374 if (sc->bios_control & CF284XEXTEND)
375 ahc->flags |= AHC_EXTENDED_TRANS_A;
376 /* Set SCSICONF info */
377 ahc_outb(ahc, SCSICONF, scsi_conf);
379 if (sc->adapter_control & CF284XSTERM)
380 ahc->flags |= AHC_TERM_ENB_A;
382 return (have_seeprom);
386 ahc_aic7770_VL_setup(struct ahc_softc *ahc)
390 error = ahc_aic7770_setup(ahc);
396 ahc_aic7770_EISA_setup(struct ahc_softc *ahc)
400 error = ahc_aic7770_setup(ahc);
401 ahc->chip |= AHC_EISA;
406 ahc_aic7770_setup(struct ahc_softc *ahc)
409 ahc->channel_b = 'B';
410 ahc->chip = AHC_AIC7770;
411 ahc->features = AHC_AIC7770_FE;
412 ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
413 ahc->flags |= AHC_PAGESCBS;
414 ahc->instruction_ram_size = 448;