sys/dev/aic7xxx/aic7770.c

   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("$FreeBSD$");
  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 }