sys/dev/aic7xxx/aic7770.c

   1 /*-
   2  * Product specific probe and attach routines for:
   3  *      27/284X and aic7770 motherboard SCSI controllers
   4  *
   5  * SPDX-License-Identifier: BSD-3-Clause
   6  *
   7  * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions, and the following disclaimer,
  15  *    without modification.
  16  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  17  *    substantially similar to the "NO WARRANTY" disclaimer below
  18  *    ("Disclaimer") and any redistribution must be conditioned upon
  19  *    including a substantially similar Disclaimer requirement for further
  20  *    binary redistribution.
  21  * 3. Neither the names of the above-listed copyright holders nor the names
  22  *    of any contributors may be used to endorse or promote products derived
  23  *    from this software without specific prior written permission.
  24  *
  25  * Alternatively, this software may be distributed under the terms of the
  26  * GNU General Public License ("GPL") version 2 as published by the Free
  27  * Software Foundation.
  28  *
  29  * NO WARRANTY
  30  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  31  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  32  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  33  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  34  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  36  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  37  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  38  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  39  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  40  * POSSIBILITY OF SUCH DAMAGES.
  41  *
  42  * $Id: //depot/aic7xxx/aic7xxx/aic7770.c#34 $
  43  */
  44
  45 #ifdef __linux__
  46 #include "aic7xxx_osm.h"
  47 #include "aic7xxx_inline.h"
  48 #include "aic7xxx_93cx6.h"
  49 #else
  50 #include <sys/cdefs.h>
  51 __FBSDID("$FreeBSD$");
  52 #include <dev/aic7xxx/aic7xxx_osm.h>
  53 #include <dev/aic7xxx/aic7xxx_inline.h>
  54 #include <dev/aic7xxx/aic7xxx_93cx6.h>
  55 #endif
  56
  57 #define ID_AIC7770      0x04907770
  58 #define ID_AHA_274x     0x04907771
  59 #define ID_AHA_284xB    0x04907756 /* BIOS enabled */
  60 #define ID_AHA_284x     0x04907757 /* BIOS disabled*/
  61 #define ID_OLV_274x     0x04907782 /* Olivetti OEM */
  62 #define ID_OLV_274xD    0x04907783 /* Olivetti OEM (Differential) */
  63
  64 static int aic7770_chip_init(struct ahc_softc *ahc);
  65 static int aic7770_suspend(struct ahc_softc *ahc);
  66 static int aic7770_resume(struct ahc_softc *ahc);
  67 static int aha2840_load_seeprom(struct ahc_softc *ahc);
  68 static ahc_device_setup_t ahc_aic7770_VL_setup;
  69 static ahc_device_setup_t ahc_aic7770_EISA_setup;       /* Really just ISA */
  70 static ahc_device_setup_t ahc_aic7770_setup;
  71
  72 struct aic7770_identity aic7770_ident_table[] =
  73 {
  74         {
  75                 ID_AHA_274x,
  76                 0xFFFFFFFF,
  77                 "Adaptec 274X SCSI adapter",
  78                 ahc_aic7770_EISA_setup
  79         },
  80         {
  81                 ID_AHA_284xB,
  82                 0xFFFFFFFE,
  83                 "Adaptec 284X SCSI adapter",
  84                 ahc_aic7770_VL_setup
  85         },
  86         {
  87                 ID_AHA_284x,
  88                 0xFFFFFFFE,
  89                 "Adaptec 284X SCSI adapter (BIOS Disabled)",
  90                 ahc_aic7770_VL_setup
  91         },
  92         {
  93                 ID_OLV_274x,
  94                 0xFFFFFFFF,
  95                 "Adaptec (Olivetti OEM) 274X SCSI adapter",
  96                 ahc_aic7770_EISA_setup
  97         },
  98         {
  99                 ID_OLV_274xD,
 100                 0xFFFFFFFF,
 101                 "Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
 102                 ahc_aic7770_EISA_setup
 103         },
 104         /* Generic chip probes for devices we don't know 'exactly' */
 105         {
 106                 ID_AIC7770,
 107                 0xFFFFFFFF,
 108                 "Adaptec aic7770 SCSI adapter",
 109                 ahc_aic7770_EISA_setup
 110         }
 111 };
 112 const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table);
 113
 114 struct aic7770_identity *
 115 aic7770_find_device(uint32_t id)
 116 {
 117         struct  aic7770_identity *entry;
 118         int     i;
 119
 120         for (i = 0; i < ahc_num_aic7770_devs; i++) {
 121                 entry = &aic7770_ident_table[i];
 122                 if (entry->full_id == (id & entry->id_mask))
 123                         return (entry);
 124         }
 125         return (NULL);
 126 }
 127
 128 int
 129 aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
 130 {
 131         int     error;
 132         int     have_seeprom;
 133         u_int   hostconf;
 134         u_int   irq;
 135         u_int   intdef;
 136
 137         error = entry->setup(ahc);
 138         have_seeprom = 0;
 139         if (error != 0)
 140                 return (error);
 141
 142         error = aic7770_map_registers(ahc, io);
 143         if (error != 0)
 144                 return (error);
 145
 146         /*
 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
 150          * storm.
 151          */
 152         ahc_intr_enable(ahc, FALSE);
 153
 154         ahc->description = entry->name;
 155         error = ahc_softc_init(ahc);
 156         if (error != 0)
 157                 return (error);
 158
 159         ahc->bus_chip_init = aic7770_chip_init;
 160         ahc->bus_suspend = aic7770_suspend;
 161         ahc->bus_resume = aic7770_resume;
 162
 163         error = ahc_reset(ahc, /*reinit*/FALSE);
 164         if (error != 0)
 165                 return (error);
 166
 167         /* Make sure we have a valid interrupt vector */
 168         intdef = ahc_inb(ahc, INTDEF);
 169         irq = intdef & VECTOR;
 170         switch (irq) {
 171         case 9:
 172         case 10:
 173         case 11:
 174         case 12:
 175         case 14:
 176         case 15:
 177                 break;
 178         default:
 179                 printf("aic7770_config: invalid irq setting %d\n", intdef);
 180                 return (ENXIO);
 181         }
 182
 183         if ((intdef & EDGE_TRIG) != 0)
 184                 ahc->flags |= AHC_EDGE_INTERRUPT;
 185
 186         switch (ahc->chip & (AHC_EISA|AHC_VL)) {
 187         case AHC_EISA:
 188         {
 189                 u_int biosctrl;
 190                 u_int scsiconf;
 191                 u_int scsiconf1;
 192
 193                 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
 194                 scsiconf = ahc_inb(ahc, SCSICONF);
 195                 scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
 196
 197                 /* Get the primary channel information */
 198                 if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
 199                         ahc->flags |= 1;
 200
 201                 if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
 202                         ahc->flags |= AHC_USEDEFAULTS;
 203                 } else {
 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;
 208                         } else {
 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;
 215                         }
 216                 }
 217                 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
 218                         ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
 219                 break;
 220         }
 221         case AHC_VL:
 222         {
 223                 have_seeprom = aha2840_load_seeprom(ahc);
 224                 break;
 225         }
 226         default:
 227                 break;
 228         }
 229         if (have_seeprom == 0) {
 230                 free(ahc->seep_config, M_DEVBUF);
 231                 ahc->seep_config = NULL;
 232         }
 233
 234         /*
 235          * Ensure autoflush is enabled
 236          */
 237         ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
 238
 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);
 243
 244         ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
 245         ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
 246
 247         /*
 248          * Generic aic7xxx initialization.
 249          */
 250         error = ahc_init(ahc);
 251         if (error != 0)
 252                 return (error);
 253
 254         error = aic7770_map_int(ahc, irq);
 255         if (error != 0)
 256                 return (error);
 257
 258         ahc_lock(ahc);
 259         /*
 260          * Link this softc in with all other ahc instances.
 261          */
 262         ahc_softc_insert(ahc);
 263
 264         /*
 265          * Enable the board's BUS drivers
 266          */
 267         ahc_outb(ahc, BCTL, ENABLE);
 268
 269         ahc_unlock(ahc);
 270
 271         return (0);
 272 }
 273
 274 static int
 275 aic7770_chip_init(struct ahc_softc *ahc)
 276 {
 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));
 282 }
 283
 284 static int
 285 aic7770_suspend(struct ahc_softc *ahc)
 286 {
 287         return (ahc_suspend(ahc));
 288 }
 289
 290 static int
 291 aic7770_resume(struct ahc_softc *ahc)
 292 {
 293         return (ahc_resume(ahc));
 294 }
 295
 296 /*
 297  * Read the 284x SEEPROM.
 298  */
 299 static int
 300 aha2840_load_seeprom(struct ahc_softc *ahc)
 301 {
 302         struct  seeprom_descriptor sd;
 303         struct  seeprom_config *sc;
 304         int     have_seeprom;
 305         uint8_t scsi_conf;
 306
 307         sd.sd_ahc = ahc;
 308         sd.sd_control_offset = SEECTL_2840;
 309         sd.sd_status_offset = STATUS_2840;
 310         sd.sd_dataout_offset = STATUS_2840;
 311         sd.sd_chip = C46;
 312         sd.sd_MS = 0;
 313         sd.sd_RDY = EEPROM_TF;
 314         sd.sd_CS = CS_2840;
 315         sd.sd_CK = CK_2840;
 316         sd.sd_DO = DO_2840;
 317         sd.sd_DI = DI_2840;
 318         sc = ahc->seep_config;
 319
 320         if (bootverbose)
 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);
 324
 325         if (have_seeprom) {
 326                 if (ahc_verify_cksum(sc) == 0) {
 327                         if(bootverbose)
 328                                 printf ("checksum error\n");
 329                         have_seeprom = 0;
 330                 } else if (bootverbose) {
 331                         printf("done.\n");
 332                 }
 333         }
 334
 335         if (!have_seeprom) {
 336                 if (bootverbose)
 337                         printf("%s: No SEEPROM available\n", ahc_name(ahc));
 338                 ahc->flags |= AHC_USEDEFAULTS;
 339         } else {
 340                 /*
 341                  * Put the data we've collected down into SRAM
 342                  * where ahc_init will find it.
 343                  */
 344                 int      i;
 345                 int      max_targ;
 346                 uint16_t discenable;
 347
 348                 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
 349                 discenable = 0;
 350                 for (i = 0; i < max_targ; i++){
 351                         uint8_t target_settings;
 352
 353                         target_settings = (sc->device_flags[i] & CFXFER) << 4;
 354                         if (sc->device_flags[i] & CFSYNCH)
 355                                 target_settings |= SOFS;
 356                         if (sc->device_flags[i] & CFWIDEB)
 357                                 target_settings |= WIDEXFER;
 358                         if (sc->device_flags[i] & CFDISC)
 359                                 discenable |= (0x01 << i);
 360                         ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
 361                 }
 362                 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
 363                 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
 364
 365                 ahc->our_id = sc->brtime_id & CFSCSIID;
 366
 367                 scsi_conf = (ahc->our_id & 0x7);
 368                 if (sc->adapter_control & CFSPARITY)
 369                         scsi_conf |= ENSPCHK;
 370                 if (sc->adapter_control & CFRESETB)
 371                         scsi_conf |= RESET_SCSI;
 372
 373                 if (sc->bios_control & CF284XEXTEND)
 374                         ahc->flags |= AHC_EXTENDED_TRANS_A;
 375                 /* Set SCSICONF info */
 376                 ahc_outb(ahc, SCSICONF, scsi_conf);
 377
 378                 if (sc->adapter_control & CF284XSTERM)
 379                         ahc->flags |= AHC_TERM_ENB_A;
 380         }
 381         return (have_seeprom);
 382 }
 383
 384 static int
 385 ahc_aic7770_VL_setup(struct ahc_softc *ahc)
 386 {
 387         int error;
 388
 389         error = ahc_aic7770_setup(ahc);
 390         ahc->chip |= AHC_VL;
 391         return (error);
 392 }
 393
 394 static int
 395 ahc_aic7770_EISA_setup(struct ahc_softc *ahc)
 396 {
 397         int error;
 398
 399         error = ahc_aic7770_setup(ahc);
 400         ahc->chip |= AHC_EISA;
 401         return (error);
 402 }
 403
 404 static int
 405 ahc_aic7770_setup(struct ahc_softc *ahc)
 406 {
 407         ahc->channel = 'A';
 408         ahc->channel_b = 'B';
 409         ahc->chip = AHC_AIC7770;
 410         ahc->features = AHC_AIC7770_FE;
 411         ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
 412         ahc->flags |= AHC_PAGESCBS;
 413         ahc->instruction_ram_size = 448;
 414         return (0);
 415 }