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scsiconf.c revision 1.83
      1 /*	$NetBSD: scsiconf.c,v 1.83 1997/04/24 00:49:14 mycroft Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994 Charles Hannum.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Charles Hannum.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Originally written by Julian Elischer (julian (at) tfs.com)
     34  * for TRW Financial Systems for use under the MACH(2.5) operating system.
     35  *
     36  * TRW Financial Systems, in accordance with their agreement with Carnegie
     37  * Mellon University, makes this software available to CMU to distribute
     38  * or use in any manner that they see fit as long as this message is kept with
     39  * the software. For this reason TFS also grants any other persons or
     40  * organisations permission to use or modify this software.
     41  *
     42  * TFS supplies this software to be publicly redistributed
     43  * on the understanding that TFS is not responsible for the correct
     44  * functioning of this software in any circumstances.
     45  *
     46  * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992
     47  */
     48 
     49 #include <sys/types.h>
     50 #include <sys/param.h>
     51 #include <sys/systm.h>
     52 #include <sys/malloc.h>
     53 #include <sys/device.h>
     54 
     55 #include <scsi/scsi_all.h>
     56 #include <scsi/scsiconf.h>
     57 
     58 #if 0
     59 #if NCALS > 0
     60 	{ T_PROCESSOR, T_FIXED, 1,
     61 	  0, 0, 0 },
     62 #endif	/* NCALS */
     63 #if NBLL > 0
     64 	{ T_PROCESSOR, T_FIXED, 1,
     65 	  "AEG     ", "READER          ", "V1.0" },
     66 #endif	/* NBLL */
     67 #if NKIL > 0
     68 	{ T_SCANNER, T_FIXED, 0,
     69 	  "KODAK   ", "IL Scanner 900  ", 0 },
     70 #endif	/* NKIL */
     71 #endif
     72 
     73 /*
     74  * Declarations
     75  */
     76 void scsi_probedev __P((struct scsibus_softc *, int, int));
     77 int scsi_probe_bus __P((int bus, int target, int lun));
     78 
     79 struct scsi_device probe_switch = {
     80 	NULL,
     81 	NULL,
     82 	NULL,
     83 	NULL,
     84 };
     85 
     86 #ifdef __BROKEN_INDIRECT_CONFIG
     87 int scsibusmatch __P((struct device *, void *, void *));
     88 #else
     89 int scsibusmatch __P((struct device *, struct cfdata *, void *));
     90 #endif
     91 void scsibusattach __P((struct device *, struct device *, void *));
     92 #ifdef __BROKEN_INDIRECT_CONFIG
     93 int scsibussubmatch __P((struct device *, void *, void *));
     94 #else
     95 int scsibussubmatch __P((struct device *, struct cfdata *, void *));
     96 #endif
     97 
     98 struct cfattach scsibus_ca = {
     99 	sizeof(struct scsibus_softc), scsibusmatch, scsibusattach
    100 };
    101 
    102 struct cfdriver scsibus_cd = {
    103 	NULL, "scsibus", DV_DULL
    104 };
    105 
    106 int scsibusprint __P((void *, const char *));
    107 
    108 int
    109 scsiprint(aux, pnp)
    110 	void *aux;
    111 	const char *pnp;
    112 {
    113 	struct scsi_link *l = aux;
    114 
    115 	/* only "scsibus"es can attach to "scsi"s; easy. */
    116 	if (pnp)
    117 		printf("scsibus at %s", pnp);
    118 
    119 	/* don't print channel if the controller says there can be only one. */
    120 	if (l->channel != SCSI_CHANNEL_ONLY_ONE)
    121 		printf(" channel %d", l->channel);
    122 
    123 	return (UNCONF);
    124 }
    125 
    126 int
    127 #ifdef __BROKEN_INDIRECT_CONFIG
    128 scsibusmatch(parent, match, aux)
    129 #else
    130 scsibusmatch(parent, cf, aux)
    131 #endif
    132 	struct device *parent;
    133 #ifdef __BROKEN_INDIRECT_CONFIG
    134 	void *match;
    135 #else
    136 	struct cfdata *cf;
    137 #endif
    138 	void *aux;
    139 {
    140 #ifdef __BROKEN_INDIRECT_CONFIG
    141 	struct cfdata *cf = match;
    142 #endif
    143 	struct scsi_link *l = aux;
    144 	int channel;
    145 
    146 	/*
    147 	 * Allow single-channel controllers to specify their channel
    148 	 * in a special way, so that it's not printed.
    149 	 */
    150 	channel = (l->channel != SCSI_CHANNEL_ONLY_ONE) ? l->channel : 0;
    151 
    152 	if (cf->scsicf_channel != channel &&
    153 	    cf->scsicf_channel != SCSI_CHANNEL_UNKNOWN)
    154 		return (0);
    155 
    156 	return (1);
    157 }
    158 
    159 /*
    160  * The routine called by the adapter boards to get all their
    161  * devices configured in.
    162  */
    163 void
    164 scsibusattach(parent, self, aux)
    165         struct device *parent, *self;
    166         void *aux;
    167 {
    168 	struct scsibus_softc *sb = (struct scsibus_softc *)self;
    169 	struct scsi_link *sc_link_proto = aux;
    170 	size_t nbytes;
    171 	int i;
    172 
    173 	sc_link_proto->scsibus = sb->sc_dev.dv_unit;
    174 	sb->adapter_link = sc_link_proto;
    175 	sb->sc_maxtarget = sc_link_proto->max_target;
    176 	printf(": %d targets\n", sb->sc_maxtarget + 1);
    177 
    178 	nbytes = sb->sc_maxtarget * sizeof(struct scsi_link **);
    179 	sb->sc_link = (struct scsi_link ***)malloc(nbytes, M_DEVBUF,
    180 	   M_NOWAIT);
    181 	if (sb->sc_link == NULL)
    182 		panic("scsibusattach: can't allocate target links");
    183 
    184 	nbytes = 8 * sizeof(struct scsi_link *);
    185 	for (i = 0; i <= sb->sc_maxtarget; i++) {
    186 		sb->sc_link[i] = (struct scsi_link **)malloc(nbytes,
    187 		    M_DEVBUF, M_NOWAIT);
    188 		if (sb->sc_link[i] == NULL)
    189 			panic("scsibusattach: can't allocate lun links");
    190 		bzero(sb->sc_link[i], nbytes);
    191 	}
    192 
    193 #if defined(SCSI_DELAY) && SCSI_DELAY > 2
    194 	printf("%s: waiting for scsi devices to settle\n",
    195 		sb->sc_dev.dv_xname);
    196 #else	/* SCSI_DELAY > 2 */
    197 #undef	SCSI_DELAY
    198 #define SCSI_DELAY 2
    199 #endif	/* SCSI_DELAY */
    200 	delay(1000000 * SCSI_DELAY);
    201 
    202 	scsi_probe_bus(sb->sc_dev.dv_unit, -1, -1);
    203 }
    204 
    205 int
    206 #ifdef __BROKEN_INDIRECT_CONFIG
    207 scsibussubmatch(parent, match, aux)
    208 #else
    209 scsibussubmatch(parent, cf, aux)
    210 #endif
    211 	struct device *parent;
    212 #ifdef __BROKEN_INDIRECT_CONFIG
    213 	void *match;
    214 #else
    215 	struct cfdata *cf;
    216 #endif
    217 	void *aux;
    218 {
    219 #ifdef __BROKEN_INDIRECT_CONFIG
    220 	struct cfdata *cf = match;
    221 #endif
    222 	struct scsibus_attach_args *sa = aux;
    223 	struct scsi_link *sc_link = sa->sa_sc_link;
    224 
    225 	if (cf->cf_loc[0] != -1 && cf->cf_loc[0] != sc_link->target)
    226 		return 0;
    227 	if (cf->cf_loc[1] != -1 && cf->cf_loc[1] != sc_link->lun)
    228 		return 0;
    229 	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
    230 }
    231 
    232 /*
    233  * Probe the requested scsi bus. It must be already set up.
    234  * -1 requests all set up scsi busses.
    235  * target and lun optionally narrow the search if not -1
    236  */
    237 int
    238 scsi_probe_busses(bus, target, lun)
    239 	int bus, target, lun;
    240 {
    241 
    242 	if (bus == -1) {
    243 		for (bus = 0; bus < scsibus_cd.cd_ndevs; bus++)
    244 			if (scsibus_cd.cd_devs[bus])
    245 				scsi_probe_bus(bus, target, lun);
    246 		return 0;
    247 	} else {
    248 		return scsi_probe_bus(bus, target, lun);
    249 	}
    250 }
    251 
    252 /*
    253  * Probe the requested scsi bus. It must be already set up.
    254  * target and lun optionally narrow the search if not -1
    255  */
    256 int
    257 scsi_probe_bus(bus, target, lun)
    258 	int bus, target, lun;
    259 {
    260 	struct scsibus_softc *scsi;
    261 	int maxtarget, mintarget, maxlun, minlun;
    262 	u_int8_t scsi_addr;
    263 
    264 	if (bus < 0 || bus >= scsibus_cd.cd_ndevs)
    265 		return ENXIO;
    266 	scsi = scsibus_cd.cd_devs[bus];
    267 	if (!scsi)
    268 		return ENXIO;
    269 
    270 	scsi_addr = scsi->adapter_link->adapter_target;
    271 
    272 	if (target == -1) {
    273 		maxtarget = scsi->sc_maxtarget;
    274 		mintarget = 0;
    275 	} else {
    276 		if (target < 0 || target > scsi->sc_maxtarget)
    277 			return EINVAL;
    278 		maxtarget = mintarget = target;
    279 	}
    280 
    281 	if (lun == -1) {
    282 		maxlun = 7;
    283 		minlun = 0;
    284 	} else {
    285 		if (lun < 0 || lun > 7)
    286 			return EINVAL;
    287 		maxlun = minlun = lun;
    288 	}
    289 
    290 	for (target = mintarget; target <= maxtarget; target++) {
    291 		if (target == scsi_addr)
    292 			continue;
    293 		for (lun = minlun; lun <= maxlun; lun++) {
    294 			/*
    295 			 * See if there's a device present, and configure it.
    296 			 */
    297 			scsi_probedev(scsi, target, lun);
    298 			if ((scsi->moreluns & (1 << target)) == 0)
    299 				break;
    300 			/* otherwise something says we should look further */
    301 		}
    302 	}
    303 	return 0;
    304 }
    305 
    306 void
    307 scsi_strvis(dst, src, len)
    308 	u_char *dst, *src;
    309 	int len;
    310 {
    311 
    312 	/* Trim leading and trailing blanks and NULs. */
    313 	while (len > 0 && (src[0] == ' ' || src[0] == '\0'))
    314 		++src, --len;
    315 	while (len > 0 && (src[len-1] == ' ' || src[len-1] == '\0'))
    316 		--len;
    317 
    318 	while (len > 0) {
    319 		if (*src < 0x20 || *src >= 0x80) {
    320 			/* non-printable characters */
    321 			*dst++ = '\\';
    322 			*dst++ = ((*src & 0300) >> 6) + '0';
    323 			*dst++ = ((*src & 0070) >> 3) + '0';
    324 			*dst++ = ((*src & 0007) >> 0) + '0';
    325 		} else if (*src == '\\') {
    326 			/* quote characters */
    327 			*dst++ = '\\';
    328 			*dst++ = '\\';
    329 		} else {
    330 			/* normal characters */
    331 			*dst++ = *src;
    332 		}
    333 		++src, --len;
    334 	}
    335 
    336 	*dst++ = 0;
    337 }
    338 
    339 struct scsi_quirk_inquiry_pattern {
    340 	struct scsi_inquiry_pattern pattern;
    341 	u_int8_t quirks;
    342 };
    343 
    344 struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
    345 	{{T_CDROM, T_REMOV,
    346 	 "CHINON  ", "CD-ROM CDS-431  ", ""},     SDEV_NOLUNS},
    347 	{{T_CDROM, T_REMOV,
    348 	 "Chinon  ", "CD-ROM CDS-525  ", ""},     SDEV_NOLUNS},
    349 	{{T_CDROM, T_REMOV,
    350 	 "CHINON  ", "CD-ROM CDS-535  ", ""},     SDEV_NOLUNS},
    351 	{{T_CDROM, T_REMOV,
    352 	 "DENON   ", "DRD-25X         ", "V"},    SDEV_NOLUNS},
    353 	{{T_CDROM, T_REMOV,
    354 	 "HP      ", "C4324/C4325     ", ""},     SDEV_NOLUNS},
    355 	{{T_CDROM, T_REMOV,
    356 	 "IMS     ", "CDD521/10       ", "2.06"}, SDEV_NOLUNS},
    357 	{{T_CDROM, T_REMOV,
    358 	 "MATSHITA", "CD-ROM CR-5XX   ", "1.0b"}, SDEV_NOLUNS},
    359 	{{T_CDROM, T_REMOV,
    360 	 "MEDIAVIS", "CDR-H93MV       ", "1.3"},  SDEV_NOLUNS},
    361 	{{T_CDROM, T_REMOV,
    362 	 "NEC     ", "CD-ROM DRIVE:55 ", ""},     SDEV_NOLUNS},
    363 	{{T_CDROM, T_REMOV,
    364 	 "NEC     ", "CD-ROM DRIVE:83 ", ""},     SDEV_NOLUNS},
    365 	{{T_CDROM, T_REMOV,
    366 	 "NEC     ", "CD-ROM DRIVE:84 ", ""},     SDEV_NOLUNS},
    367 	{{T_CDROM, T_REMOV,
    368 	 "NEC     ", "CD-ROM DRIVE:841", ""},     SDEV_NOLUNS},
    369 	{{T_CDROM, T_REMOV,
    370 	 "PIONEER ", "CD-ROM DR-124X  ", "1.01"}, SDEV_NOLUNS},
    371 	{{T_CDROM, T_REMOV,
    372 	 "SONY    ", "CD-ROM CDU-541  ", ""},     SDEV_NOLUNS},
    373 	{{T_CDROM, T_REMOV,
    374 	 "SONY    ", "CD-ROM CDU-55S  ", ""},     SDEV_NOLUNS},
    375 	{{T_CDROM, T_REMOV,
    376 	 "SONY    ", "CD-ROM CDU-8003A", ""},     SDEV_NOLUNS},
    377 	{{T_CDROM, T_REMOV,
    378 	 "SONY    ", "CD-ROM CDU-8012 ", ""},     SDEV_NOLUNS},
    379 	{{T_CDROM, T_REMOV,
    380 	 "TEAC    ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
    381 	{{T_CDROM, T_REMOV,
    382 	 "TEAC    ", "CD-ROM CD-56S   ", "1.0B"}, SDEV_NOLUNS},
    383 	{{T_CDROM, T_REMOV,
    384 	 "TEXEL   ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
    385 	{{T_CDROM, T_REMOV,
    386 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.10"}, SDEV_NOLUNS},
    387 	{{T_CDROM, T_REMOV,
    388 	 "ShinaKen", "CD-ROM DM-3x1S", "1.04"}, SDEV_NOLUNS},
    389 	{{T_DIRECT, T_FIXED,
    390 	 "MICROP  ", "1588-15MBSUN0669", ""},     SDEV_AUTOSAVE},
    391 	{{T_OPTICAL, T_REMOV,
    392 	 "EPSON   ", "OMD-5010        ", "3.08"}, SDEV_NOLUNS},
    393 
    394 	{{T_DIRECT, T_FIXED,
    395 	 "DEC     ", "RZ55     (C) DEC", ""},     SDEV_AUTOSAVE},
    396 	{{T_DIRECT, T_FIXED,
    397 	 "EMULEX  ", "MD21/S2     ESDI", "A00"},  SDEV_FORCELUNS|SDEV_AUTOSAVE},
    398 	{{T_DIRECT, T_FIXED,
    399 	 "IBMRAID ", "0662S",		 ""},     SDEV_AUTOSAVE},
    400 	{{T_DIRECT, T_FIXED,
    401 	 "IBM     ", "0663H",		 ""},     SDEV_AUTOSAVE},
    402 	{{T_DIRECT, T_FIXED,
    403 	 "IBM",	  "0664",		 ""},	  SDEV_AUTOSAVE},
    404 	/* Broken IBM disk */
    405 	{{T_DIRECT, T_FIXED,
    406 	 ""	   , "DFRSS2F",		 ""},	  SDEV_AUTOSAVE},
    407 	{{T_DIRECT, T_FIXED,
    408 	 "MAXTOR  ", "XT-3280         ", ""},     SDEV_NOLUNS},
    409 	{{T_DIRECT, T_FIXED,
    410 	 "MAXTOR  ", "XT-4380S        ", ""},     SDEV_NOLUNS},
    411 	{{T_DIRECT, T_FIXED,
    412 	 "MAXTOR  ", "MXT-1240S       ", ""},     SDEV_NOLUNS},
    413 	{{T_DIRECT, T_FIXED,
    414 	 "MAXTOR  ", "XT-4170S        ", ""},     SDEV_NOLUNS},
    415 	{{T_DIRECT, T_FIXED,
    416 	 "MAXTOR  ", "XT-8760S",         ""},     SDEV_NOLUNS},
    417 	{{T_DIRECT, T_FIXED,
    418 	 "MAXTOR  ", "LXT-213S        ", ""},     SDEV_NOLUNS},
    419 	{{T_DIRECT, T_FIXED,
    420 	 "MAXTOR  ", "LXT-213S SUN0207", ""},     SDEV_NOLUNS},
    421 	{{T_DIRECT, T_FIXED,
    422 	 "MAXTOR  ", "LXT-200S        ", ""},     SDEV_NOLUNS},
    423 	{{T_DIRECT, T_FIXED,
    424 	 "MST     ", "SnapLink        ", ""},     SDEV_NOLUNS},
    425 	{{T_DIRECT, T_FIXED,
    426 	 "NEC     ", "D3847           ", "0307"}, SDEV_NOLUNS},
    427 	{{T_DIRECT, T_FIXED,
    428 	 "QUANTUM ", "LPS525S         ", ""},     SDEV_NOLUNS},
    429 	{{T_DIRECT, T_FIXED,
    430 	 "QUANTUM ", "P105S 910-10-94x", ""},     SDEV_NOLUNS},
    431 	{{T_DIRECT, T_FIXED,
    432 	 "QUANTUM ", "PD1225S         ", ""},     SDEV_NOLUNS},
    433 	{{T_DIRECT, T_FIXED,
    434 	 "QUANTUM ", "PD210S   SUN0207", ""},     SDEV_NOLUNS},
    435 	{{T_DIRECT, T_FIXED,
    436 	 "RODIME  ", "RO3000S         ", ""},     SDEV_NOLUNS},
    437 	{{T_DIRECT, T_FIXED,
    438 	 "SEAGATE ", "ST125N          ", ""},     SDEV_NOLUNS},
    439 	{{T_DIRECT, T_FIXED,
    440 	 "SEAGATE ", "ST157N          ", ""},     SDEV_NOLUNS},
    441 	{{T_DIRECT, T_FIXED,
    442 	 "SEAGATE ", "ST296           ", ""},     SDEV_NOLUNS},
    443 	{{T_DIRECT, T_FIXED,
    444 	 "SEAGATE ", "ST296N          ", ""},     SDEV_NOLUNS},
    445 	{{T_DIRECT, T_FIXED,
    446 	 "TOSHIBA ", "MK538FB         ", "6027"}, SDEV_NOLUNS},
    447 	{{T_DIRECT, T_REMOV,
    448 	 "iomega", "jaz 1GB", 		 ""},	  SDEV_NOMODESENSE},
    449 	{{T_DIRECT, T_REMOV,
    450 	 "IOMEGA", "ZIP 100",		 ""},	  SDEV_NOMODESENSE},
    451 	/* Letting the motor run kills floppy drives and disks quit fast. */
    452 	{{T_DIRECT, T_REMOV,
    453 	 "TEAC", "FC-1",		 ""},	  SDEV_NOSTARTUNIT},
    454 
    455 	/* XXX: QIC-36 tape behind Emulex adapter.  Very broken. */
    456 	{{T_SEQUENTIAL, T_REMOV,
    457 	 "        ", "                ", "    "}, SDEV_NOLUNS},
    458 	{{T_SEQUENTIAL, T_REMOV,
    459 	 "CALIPER ", "CP150           ", ""},     SDEV_NOLUNS},
    460 	{{T_SEQUENTIAL, T_REMOV,
    461 	 "EXABYTE ", "EXB-8200        ", ""},     SDEV_NOLUNS},
    462 	{{T_SEQUENTIAL, T_REMOV,
    463 	 "SONY    ", "SDT-2000        ", "2.09"}, SDEV_NOLUNS},
    464 	{{T_SEQUENTIAL, T_REMOV,
    465 	 "SONY    ", "SDT-5000        ", "3."},   SDEV_NOSYNCWIDE},
    466 	{{T_SEQUENTIAL, T_REMOV,
    467 	 "SONY    ", "SDT-5200        ", "3."},   SDEV_NOLUNS},
    468 	{{T_SEQUENTIAL, T_REMOV,
    469 	 "TANDBERG", " TDC 3600       ", ""},     SDEV_NOLUNS},
    470 	/* Following entry reported as a Tandberg 3600; ref. PR1933 */
    471 	{{T_SEQUENTIAL, T_REMOV,
    472 	 "ARCHIVE ", "VIPER 150  21247", ""},     SDEV_NOLUNS},
    473 	{{T_SEQUENTIAL, T_REMOV,
    474 	 "ARCHIVE ", "Python 28454-XXX", ""},     SDEV_NOLUNS},
    475 	{{T_SEQUENTIAL, T_REMOV,
    476 	 "WANGTEK ", "5099ES SCSI",      ""},     SDEV_NOLUNS},
    477 	{{T_SEQUENTIAL, T_REMOV,
    478 	 "WANGTEK ", "5150ES SCSI",      ""},     SDEV_NOLUNS},
    479 	{{T_SEQUENTIAL, T_REMOV,
    480 	 "WangDAT ", "Model 1300      ", "02.4"}, SDEV_NOSYNCWIDE},
    481 	{{T_SEQUENTIAL, T_REMOV,
    482 	 "WangDAT ", "Model 2600      ", "01.7"}, SDEV_NOSYNCWIDE},
    483 	{{T_SEQUENTIAL, T_REMOV,
    484 	 "WangDAT ", "Model 3200      ", "02.2"}, SDEV_NOSYNCWIDE},
    485 };
    486 
    487 /*
    488  * Print out autoconfiguration information for a subdevice.
    489  *
    490  * This is a slight abuse of 'standard' autoconfiguration semantics,
    491  * because 'print' functions don't normally print the colon and
    492  * device information.  However, in this case that's better than
    493  * either printing redundant information before the attach message,
    494  * or having the device driver call a special function to print out
    495  * the standard device information.
    496  */
    497 int
    498 scsibusprint(aux, pnp)
    499 	void *aux;
    500 	const char *pnp;
    501 {
    502 	struct scsibus_attach_args *sa = aux;
    503 	struct scsi_inquiry_data *inqbuf;
    504 	u_int8_t type;
    505 	boolean removable;
    506 	char *dtype, *qtype;
    507 	char vendor[33], product[65], revision[17];
    508 	int target, lun;
    509 
    510 	if (pnp != NULL)
    511 		printf("%s", pnp);
    512 
    513 	inqbuf = sa->sa_inqbuf;
    514 
    515         target = sa->sa_sc_link->target;
    516         lun = sa->sa_sc_link->lun;
    517 
    518         type = inqbuf->device & SID_TYPE;
    519         removable = inqbuf->dev_qual2 & SID_REMOVABLE ? 1 : 0;
    520 
    521 	/*
    522 	 * Figure out basic device type and qualifier.
    523 	 */
    524 	dtype = 0;
    525 	switch (inqbuf->device & SID_QUAL) {
    526 	case SID_QUAL_LU_OK:
    527 		qtype = "";
    528 		break;
    529 
    530 	case SID_QUAL_LU_OFFLINE:
    531 		qtype = " offline";
    532 		break;
    533 
    534 	case SID_QUAL_RSVD:
    535 	case SID_QUAL_BAD_LU:
    536 		panic("scsibusprint: impossible qualifier");
    537 
    538 	default:
    539 		qtype = "";
    540 		dtype = "vendor-unique";
    541 		break;
    542 	}
    543 	if (dtype == 0) {
    544 		switch (type) {
    545 		case T_DIRECT:
    546 			dtype = "direct";
    547 			break;
    548 		case T_SEQUENTIAL:
    549 			dtype = "sequential";
    550 			break;
    551 		case T_PRINTER:
    552 			dtype = "printer";
    553 			break;
    554 		case T_PROCESSOR:
    555 			dtype = "processor";
    556 			break;
    557 		case T_CDROM:
    558 			dtype = "cdrom";
    559 			break;
    560 		case T_WORM:
    561 			dtype = "worm";
    562 			break;
    563 		case T_SCANNER:
    564 			dtype = "scanner";
    565 			break;
    566 		case T_OPTICAL:
    567 			dtype = "optical";
    568 			break;
    569 		case T_CHANGER:
    570 			dtype = "changer";
    571 			break;
    572 		case T_COMM:
    573 			dtype = "communication";
    574 			break;
    575 		case T_NODEVICE:
    576 			panic("scsibusprint: impossible device type");
    577 		default:
    578 			dtype = "unknown";
    579 			break;
    580 		}
    581 	}
    582 
    583         scsi_strvis(vendor, inqbuf->vendor, 8);
    584         scsi_strvis(product, inqbuf->product, 16);
    585         scsi_strvis(revision, inqbuf->revision, 4);
    586 
    587         printf(" targ %d lun %d: <%s, %s, %s> SCSI%d %d/%s %s%s",
    588             target, lun, vendor, product, revision,
    589             inqbuf->version & SID_ANSII, type, dtype,
    590             removable ? "removable" : "fixed", qtype);
    591 
    592 	return (UNCONF);
    593 }
    594 
    595 /*
    596  * given a target and lu, ask the device what
    597  * it is, and find the correct driver table
    598  * entry.
    599  */
    600 void
    601 scsi_probedev(scsi, target, lun)
    602 	struct scsibus_softc *scsi;
    603 	int target, lun;
    604 {
    605 	struct scsi_link *sc_link;
    606 	static struct scsi_inquiry_data inqbuf;
    607 	struct scsi_quirk_inquiry_pattern *finger;
    608 	int checkdtype, priority;
    609 	struct scsibus_attach_args sa;
    610 	struct cfdata *cf;
    611 
    612 	/* Skip this slot if it is already attached. */
    613 	if (scsi->sc_link[target][lun])
    614 		return;
    615 
    616 	sc_link = malloc(sizeof(*sc_link), M_DEVBUF, M_NOWAIT);
    617 	*sc_link = *scsi->adapter_link;
    618 	sc_link->target = target;
    619 	sc_link->lun = lun;
    620 	sc_link->device = &probe_switch;
    621 
    622 	/*
    623 	 * Ask the device what it is
    624 	 */
    625 #ifdef SCSIDEBUG
    626 	if (target == DEBUGTARGET && lun == DEBUGLUN)
    627 		sc_link->flags |= DEBUGLEVEL;
    628 #endif /* SCSIDEBUG */
    629 
    630 	(void) scsi_test_unit_ready(sc_link,
    631 	    SCSI_AUTOCONF | SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE);
    632 
    633 #ifdef SCSI_2_DEF
    634 	/* some devices need to be told to go to SCSI2 */
    635 	/* However some just explode if you tell them this.. leave it out */
    636 	scsi_change_def(sc_link, SCSI_AUTOCONF | SCSI_SILENT);
    637 #endif /* SCSI_2_DEF */
    638 
    639 	/* Now go ask the device all about itself. */
    640 	bzero(&inqbuf, sizeof(inqbuf));
    641 	if (scsi_inquire(sc_link, &inqbuf, SCSI_AUTOCONF) != 0)
    642 		goto bad;
    643 
    644 	{
    645 		int len = inqbuf.additional_length;
    646 		while (len < 3)
    647 			inqbuf.unused[len++] = '\0';
    648 		while (len < 3 + 28)
    649 			inqbuf.unused[len++] = ' ';
    650 	}
    651 
    652 	finger = (struct scsi_quirk_inquiry_pattern *)scsi_inqmatch(&inqbuf,
    653 	    (caddr_t)scsi_quirk_patterns,
    654 	    sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]),
    655 	    sizeof(scsi_quirk_patterns[0]), &priority);
    656 	if (priority != 0)
    657 		sc_link->quirks |= finger->quirks;
    658 	if ((inqbuf.version & SID_ANSII) == 0 &&
    659 	    (sc_link->quirks & SDEV_FORCELUNS) == 0)
    660 		sc_link->quirks |= SDEV_NOLUNS;
    661 	sc_link->scsi_version = inqbuf.version;
    662 
    663 	if ((sc_link->quirks & SDEV_NOLUNS) == 0)
    664 		scsi->moreluns |= (1 << target);
    665 
    666 	/*
    667 	 * note what BASIC type of device it is
    668 	 */
    669 	if ((inqbuf.dev_qual2 & SID_REMOVABLE) != 0)
    670 		sc_link->flags |= SDEV_REMOVABLE;
    671 
    672 	/*
    673 	 * Any device qualifier that has the top bit set (qualifier&4 != 0)
    674 	 * is vendor specific and won't match in this switch.
    675 	 * All we do here is throw out bad/negative responses.
    676 	 */
    677 	checkdtype = 0;
    678 	switch (inqbuf.device & SID_QUAL) {
    679 	case SID_QUAL_LU_OK:
    680 	case SID_QUAL_LU_OFFLINE:
    681 		checkdtype = 1;
    682 		break;
    683 
    684 	case SID_QUAL_RSVD:
    685 	case SID_QUAL_BAD_LU:
    686 		goto bad;
    687 
    688 	default:
    689 		break;
    690 	}
    691 	if (checkdtype) {
    692 		switch (inqbuf.device & SID_TYPE) {
    693 		case T_DIRECT:
    694 		case T_SEQUENTIAL:
    695 		case T_PRINTER:
    696 		case T_PROCESSOR:
    697 		case T_CDROM:
    698 		case T_WORM:
    699 		case T_SCANNER:
    700 		case T_OPTICAL:
    701 		case T_CHANGER:
    702 		case T_COMM:
    703 		default:
    704 			break;
    705 		case T_NODEVICE:
    706 			goto bad;
    707 		}
    708 	}
    709 
    710 	sa.sa_sc_link = sc_link;
    711 	sa.sa_inqbuf = &inqbuf;
    712 
    713 	if ((cf = config_search(scsibussubmatch, (struct device *)scsi, &sa)) != 0) {
    714 		scsi->sc_link[target][lun] = sc_link;
    715 		config_attach((struct device *)scsi, cf, &sa, scsibusprint);
    716 	} else {
    717 		scsibusprint(&sa, scsi->sc_dev.dv_xname);
    718 		printf(" not configured\n");
    719 		goto bad;
    720 	}
    721 
    722 	return;
    723 
    724 bad:
    725 	free(sc_link, M_DEVBUF);
    726 	return;
    727 }
    728 
    729 /*
    730  * Return a priority based on how much of the inquiry data matches
    731  * the patterns for the particular driver.
    732  */
    733 caddr_t
    734 scsi_inqmatch(inqbuf, base, nmatches, matchsize, bestpriority)
    735 	struct scsi_inquiry_data *inqbuf;
    736 	caddr_t base;
    737 	int nmatches, matchsize;
    738 	int *bestpriority;
    739 {
    740 	u_int8_t type;
    741 	boolean removable;
    742 	caddr_t bestmatch;
    743 
    744 	/* Include the qualifier to catch vendor-unique types. */
    745 	type = inqbuf->device;
    746 	removable = inqbuf->dev_qual2 & SID_REMOVABLE ? T_REMOV : T_FIXED;
    747 
    748 	for (*bestpriority = 0, bestmatch = 0; nmatches--; base += matchsize) {
    749 		struct scsi_inquiry_pattern *match = (void *)base;
    750 		int priority, len;
    751 
    752 		if (type != match->type)
    753 			continue;
    754 		if (removable != match->removable)
    755 			continue;
    756 		priority = 2;
    757 		len = strlen(match->vendor);
    758 		if (bcmp(inqbuf->vendor, match->vendor, len))
    759 			continue;
    760 		priority += len;
    761 		len = strlen(match->product);
    762 		if (bcmp(inqbuf->product, match->product, len))
    763 			continue;
    764 		priority += len;
    765 		len = strlen(match->revision);
    766 		if (bcmp(inqbuf->revision, match->revision, len))
    767 			continue;
    768 		priority += len;
    769 
    770 #if SCSIDEBUG
    771 		printf("scsi_inqmatch: %d/%d/%d <%s, %s, %s>\n",
    772 		    priority, match->type, match->removable,
    773 		    match->vendor, match->product, match->revision);
    774 #endif
    775 		if (priority > *bestpriority) {
    776 			*bestpriority = priority;
    777 			bestmatch = base;
    778 		}
    779 	}
    780 
    781 	return (bestmatch);
    782 }
    783