627 lines
16 KiB
C
627 lines
16 KiB
C
/*
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* Copyright (c) 1994 Charles Hannum. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: scsiconf.c,v 1.13 1994/04/11 03:54:05 mycroft Exp $
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*/
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/*
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* Originally written by Julian Elischer (julian@tfs.com)
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* for TRW Financial Systems for use under the MACH(2.5) operating system.
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*
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* TRW Financial Systems, in accordance with their agreement with Carnegie
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* Mellon University, makes this software available to CMU to distribute
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* or use in any manner that they see fit as long as this message is kept with
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* the software. For this reason TFS also grants any other persons or
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* organisations permission to use or modify this software.
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*
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* TFS supplies this software to be publicly redistributed
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* on the understanding that TFS is not responsible for the correct
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* functioning of this software in any circumstances.
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*
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* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/device.h>
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#include <scsi/scsi_all.h>
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#include <scsi/scsiconf.h>
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#if defined(i386) && !defined(NEWCONFIG)
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#include <i386/isa/isa_device.h>
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#endif
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#include "st.h"
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#include "sd.h"
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#include "ch.h"
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#include "cd.h"
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#include "uk.h"
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#include "su.h"
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#ifdef TFS
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#include "bll.h"
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#include "cals.h"
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#include "kil.h"
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#include "scan.h"
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#else /* TFS */
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#define NBLL 0
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#define NCALS 0
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#define NKIL 0
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#define NSCAN 0
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#endif /* TFS */
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/*
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* The structure of known drivers for autoconfiguration
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*/
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struct scsidevs {
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char *devname;
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u_int32 type;
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boolean removable;
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int flags; /* 1 show my comparisons during boot(debug) */
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#define SC_SHOWME 0x01
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#define SC_ONE_LU 0x00
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#define SC_MORE_LUS 0x02
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char *manufacturer;
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char *model;
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char *version;
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};
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#if NUK > 0
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static struct scsidevs unknowndev = {
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"uk", -1, 0, SC_MORE_LUS,
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"standard", "any", "any"
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};
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#endif /*NUK*/
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static struct scsidevs knowndevs[] = {
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#if NSD > 0
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{ "sd", T_DIRECT, T_FIXED, SC_ONE_LU,
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"standard", "any", "any" },
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{ "sd", T_DIRECT, T_FIXED, SC_ONE_LU,
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"MAXTOR ", "XT-4170S ", "B5A " },
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#endif /* NSD */
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#if NST > 0
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{ "st", T_SEQUENTIAL, T_REMOV, SC_ONE_LU,
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"standard", "any", "any" },
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#endif /* NST */
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#if NCALS > 0
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{ "cals", T_PROCESSOR, T_FIXED, SC_MORE_LUS,
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"standard", "any", "any" },
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#endif /* NCALS */
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#if NCH > 0
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{ "ch", T_CHANGER, T_REMOV, SC_ONE_LU,
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"standard", "any", "any" },
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#endif /* NCH */
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#if NCD > 0
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#ifndef UKTEST /* make cdroms unrecognised to test the uk driver */
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{ "cd", T_READONLY, T_REMOV, SC_ONE_LU,
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"SONY ", "CD-ROM CDU-8012 ", "3.1a" },
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{ "cd", T_READONLY, T_REMOV, SC_MORE_LUS,
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"PIONEER ", "CD-ROM DRM-600 ", "any" },
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#endif
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#endif /* NCD */
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#if NBLL > 0
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{ "bll", T_PROCESSOR, T_FIXED, SC_MORE_LUS,
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"AEG ", "READER ", "V1.0" },
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#endif /* NBLL */
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#if NKIL > 0
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{ "kil", T_SCANNER, T_FIXED, SC_ONE_LU,
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"KODAK ", "IL Scanner 900 ", "any" },
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#endif /* NKIL */
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{ 0 }
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};
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/*
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* Declarations
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*/
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struct scsidevs *scsi_probedev();
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struct scsidevs *selectdev();
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int scsi_probe_bus __P((int bus, int targ, int lun));
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struct scsi_device probe_switch = {
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NULL,
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NULL,
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NULL,
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NULL,
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"probe",
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0,
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};
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int scsibusmatch __P((struct device *, struct cfdata *, void *));
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void scsibusattach __P((struct device *, struct device *, void *));
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struct cfdriver scsibuscd = {
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NULL, "scsibus", scsibusmatch, scsibusattach, DV_DULL,
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sizeof(struct scsibus_data)
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};
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int
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scsibusmatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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return 1;
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}
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/*
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* The routine called by the adapter boards to get all their
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* devices configured in.
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*/
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void
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scsibusattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct scsibus_data *sb = (struct scsibus_data *)self;
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struct scsi_link *sc_link_proto = aux;
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sc_link_proto->scsibus = sb->sc_dev.dv_unit;
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sb->adapter_link = sc_link_proto;
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printf("\n");
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#if defined(SCSI_DELAY) && SCSI_DELAY > 2
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printf("%s: waiting for scsi devices to settle\n",
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sb->sc_dev.dv_xname);
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#else /* SCSI_DELAY > 2 */
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#undef SCSI_DELAY
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#define SCSI_DELAY 2
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#endif /* SCSI_DELAY */
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delay(1000000 * SCSI_DELAY);
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scsi_probe_bus(sb->sc_dev.dv_unit, -1, -1);
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}
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/*
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* Probe the requested scsi bus. It must be already set up.
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* -1 requests all set up scsi busses.
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* targ and lun optionally narrow the search if not -1
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*/
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int
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scsi_probe_busses(bus, targ, lun)
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int bus, targ, lun;
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{
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if (bus == -1) {
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for (bus = 0; bus < scsibuscd.cd_ndevs; bus++)
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if (scsibuscd.cd_devs[bus])
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scsi_probe_bus(bus, targ, lun);
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return 0;
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} else {
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return scsi_probe_bus(bus, targ, lun);
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}
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}
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/*
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* Probe the requested scsi bus. It must be already set up.
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* targ and lun optionally narrow the search if not -1
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*/
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int
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scsi_probe_bus(bus, targ, lun)
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int bus, targ, lun;
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{
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struct scsibus_data *scsi;
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int maxtarg, mintarg, maxlun, minlun;
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struct scsi_link *sc_link_proto;
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u_int8 scsi_addr ;
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struct scsidevs *bestmatch = NULL;
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struct scsi_link *sc_link = NULL;
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boolean maybe_more;
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if (bus < 0 || bus >= scsibuscd.cd_ndevs)
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return ENXIO;
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scsi = scsibuscd.cd_devs[bus];
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if (!scsi)
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return ENXIO;
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sc_link_proto = scsi->adapter_link;
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scsi_addr = sc_link_proto->adapter_targ;
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if (targ == -1) {
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maxtarg = 7;
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mintarg = 0;
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} else {
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if (targ < 0 || targ > 7)
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return EINVAL;
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maxtarg = mintarg = targ;
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}
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if (lun == -1) {
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maxlun = 7;
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minlun = 0;
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} else {
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if (lun < 0 || lun > 7)
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return EINVAL;
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maxlun = minlun = lun;
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}
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for (targ = mintarg; targ <= maxtarg; targ++) {
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maybe_more = 0; /* by default only check 1 lun */
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#if 0 /* XXXX */
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if (targ == scsi_addr)
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continue;
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#endif
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for (lun = minlun; lun <= maxlun; lun++) {
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/*
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* The spot appears to already have something
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* linked in, skip past it. Must be doing a 'reprobe'
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*/
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if (scsi->sc_link[targ][lun]) {
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/* don't do this one, but check other luns */
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maybe_more = 1;
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continue;
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}
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/*
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* If we presently don't have a link block
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* then allocate one to use while probing
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*/
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if (!sc_link) {
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sc_link = malloc(sizeof(*sc_link), M_TEMP, M_NOWAIT);
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*sc_link = *sc_link_proto; /* struct copy */
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sc_link->opennings = 1;
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sc_link->device = &probe_switch;
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}
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sc_link->target = targ;
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sc_link->lun = lun;
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bestmatch = scsi_probedev(sc_link, &maybe_more);
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/*
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* We already know what the device is. We use a
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* special matching routine which insists that the
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* cfdata is of the right type rather than putting
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* more intelligence in individual match routines for
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* each high-level driver. We must have
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* scsi_targmatch() do all of the comparisons, or we
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* could get stuck in an infinite loop trying the same
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* device repeatedly. We use the `fordriver' field of
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* the scsi_link for now, rather than inventing a new
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* structure just for the config_search().
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*/
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if (bestmatch) {
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sc_link->fordriver = bestmatch->devname;
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if (config_found((struct device *)scsi,
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sc_link, NULL)) {
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scsi->sc_link[targ][lun] = sc_link;
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sc_link = NULL; /* it's been used */
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} else
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printf("No matching config entry.\n");
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}
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if (!maybe_more)/* nothing suggests we'll find more */
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break; /* nothing here, skip to next targ */
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/* otherwise something says we should look further */
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}
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}
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if (sc_link)
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free(sc_link, M_TEMP);
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return 0;
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}
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int
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#ifndef i386
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scsi_targmatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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#else
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scsi_targmatch(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct cfdata *cf = self->dv_cfdata;
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#endif
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struct scsi_link *sc_link = aux;
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char *devname = sc_link->fordriver;
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#if !defined(i386) || defined(NEWCONFIG)
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#define cf_target cf_loc[0]
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#define cf_lun cf_loc[1]
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if (cf->cf_target != -1 && cf->cf_target != sc_link->target)
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return 0;
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if (cf->cf_lun != -1 && cf->cf_lun != sc_link->lun)
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return 0;
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#undef cf_target
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#undef cf_lun
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#else
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struct isa_device *id = (void *)cf->cf_loc;
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if (id->id_physid != -1 &&
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id->id_physid != ((sc_link->target << 3) | sc_link->lun))
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return 0;
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#endif
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if (strcmp(cf->cf_driver->cd_name, devname))
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return 0;
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return 1;
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}
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/*
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* given a target and lu, ask the device what
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* it is, and find the correct driver table
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* entry.
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*/
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struct scsidevs *
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scsi_probedev(sc_link, maybe_more)
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boolean *maybe_more;
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struct scsi_link *sc_link;
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{
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u_int8 target = sc_link->target;
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u_int8 lun = sc_link->lun;
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struct scsi_adapter *scsi_adapter = sc_link->adapter;
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struct scsidevs *bestmatch = NULL;
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char *dtype = NULL, *desc;
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char *qtype;
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static struct scsi_inquiry_data inqbuf;
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u_int32 len, qualifier, type;
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boolean remov;
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char manu[32];
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char model[32];
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char version[32];
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bzero(&inqbuf, sizeof(inqbuf));
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/*
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* Ask the device what it is
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*/
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#ifdef SCSIDEBUG
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if (target == DEBUGTARG && lun == DEBUGLUN)
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sc_link->flags |= DEBUGLEVEL;
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else
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sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2 | SDEV_DB3 | SDEV_DB4);
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#endif /* SCSIDEBUG */
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/* catch unit attn */
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scsi_test_unit_ready(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT);
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#ifdef DOUBTFULL
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switch (scsi_test_unit_ready(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT)) {
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case 0: /* said it WAS ready */
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case EBUSY: /* replied 'NOT READY' but WAS present, continue */
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case ENXIO:
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break;
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case EIO: /* device timed out */
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case EINVAL: /* Lun not supported */
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default:
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return NULL;
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}
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#endif /*DOUBTFULL*/
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#ifdef SCSI_2_DEF
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/* some devices need to be told to go to SCSI2 */
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/* However some just explode if you tell them this.. leave it out */
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scsi_change_def(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT);
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#endif /*SCSI_2_DEF */
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/* Now go ask the device all about itself */
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if (scsi_inquire(sc_link, &inqbuf, SCSI_NOSLEEP | SCSI_NOMASK) != 0)
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return NULL;
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/*
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* note what BASIC type of device it is
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*/
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type = inqbuf.device & SID_TYPE;
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qualifier = inqbuf.device & SID_QUAL;
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remov = inqbuf.dev_qual2 & SID_REMOVABLE;
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/*
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* Any device qualifier that has the top bit set (qualifier&4 != 0)
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* is vendor specific and won't match in this switch.
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*/
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switch (qualifier) {
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case SID_QUAL_LU_OK:
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qtype = "";
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break;
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case SID_QUAL_LU_OFFLINE:
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qtype = ", Unit not Connected!";
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break;
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case SID_QUAL_RSVD:
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qtype = ", Reserved Peripheral Qualifier!";
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*maybe_more = 1;
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return NULL;
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break;
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case SID_QUAL_BAD_LU:
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/*
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* Check for a non-existent unit. If the device is returning
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* this much, then we must set the flag that has
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* the searchers keep looking on other luns.
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*/
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qtype = ", The Target can't support this Unit!";
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*maybe_more = 1;
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return NULL;
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default:
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dtype = "vendor specific";
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qtype = "";
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*maybe_more = 1;
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break;
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}
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if (dtype == 0) {
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switch (type) {
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case T_DIRECT:
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dtype = "direct";
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break;
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case T_SEQUENTIAL:
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dtype = "sequential";
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break;
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case T_PRINTER:
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dtype = "printer";
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break;
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case T_PROCESSOR:
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dtype = "processor";
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break;
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case T_READONLY:
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dtype = "readonly";
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break;
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case T_WORM:
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dtype = "worm";
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break;
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case T_SCANNER:
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dtype = "scanner";
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break;
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case T_OPTICAL:
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dtype = "optical";
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break;
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case T_CHANGER:
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dtype = "changer";
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break;
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case T_COMM:
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dtype = "communication";
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break;
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case T_NODEVICE:
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*maybe_more = 1;
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return NULL;
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default:
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dtype = NULL;
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break;
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}
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}
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/*
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* Then if it's advanced enough, more detailed
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* information
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*/
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if ((inqbuf.version & SID_ANSII) > 0) {
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if ((len = inqbuf.additional_length
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+ ((char *) inqbuf.unused
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- (char *) &inqbuf))
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> (sizeof(struct scsi_inquiry_data) - 1))
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len = sizeof(struct scsi_inquiry_data) - 1;
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desc = inqbuf.vendor;
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desc[len - (desc - (char *) &inqbuf)] = 0;
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strncpy(manu, inqbuf.vendor, 8);
|
|
manu[8] = 0;
|
|
strncpy(model, inqbuf.product, 16);
|
|
model[16] = 0;
|
|
strncpy(version, inqbuf.revision, 4);
|
|
version[4] = 0;
|
|
} else
|
|
/*
|
|
* If not advanced enough, use default values
|
|
*/
|
|
{
|
|
desc = "early protocol device";
|
|
strncpy(manu, "unknown", 8);
|
|
strncpy(model, "unknown", 16);
|
|
strncpy(version, "????", 4);
|
|
}
|
|
printf("%s targ %d lun %d: <%s%s%s> SCSI%d ",
|
|
((struct device *)sc_link->adapter_softc)->dv_xname,
|
|
target, lun, manu, model, version,
|
|
inqbuf.version & SID_ANSII);
|
|
if (dtype)
|
|
printf("%s", dtype);
|
|
else
|
|
printf("type %d", type);
|
|
printf(" %s\n", remov ? "removable" : "fixed");
|
|
if (qtype[0])
|
|
printf("%s targ %d lun %d: qualifier %d(%s)\n",
|
|
((struct device *)sc_link->adapter_softc)->dv_xname,
|
|
target, lun, qualifier, qtype);
|
|
|
|
/*
|
|
* Try make as good a match as possible with
|
|
* available sub drivers
|
|
*/
|
|
bestmatch = selectdev(qualifier, type, remov ? T_REMOV : T_FIXED,
|
|
manu, model, version);
|
|
if (bestmatch && bestmatch->flags & SC_MORE_LUS)
|
|
*maybe_more = 1;
|
|
return bestmatch;
|
|
}
|
|
|
|
/*
|
|
* Try make as good a match as possible with
|
|
* available sub drivers
|
|
*/
|
|
struct scsidevs *
|
|
selectdev(qualifier, type, remov, manu, model, rev)
|
|
u_int32 qualifier, type;
|
|
boolean remov;
|
|
char *manu, *model, *rev;
|
|
{
|
|
u_int32 numents = (sizeof(knowndevs) / sizeof(struct scsidevs)) - 1;
|
|
u_int32 count = 0;
|
|
u_int32 bestmatches = 0;
|
|
struct scsidevs *bestmatch = (struct scsidevs *) 0;
|
|
struct scsidevs *thisentry = knowndevs;
|
|
|
|
type |= qualifier; /* why? */
|
|
|
|
thisentry--;
|
|
while (count++ < numents) {
|
|
thisentry++;
|
|
if (type != thisentry->type)
|
|
continue;
|
|
if (bestmatches < 1) {
|
|
bestmatches = 1;
|
|
bestmatch = thisentry;
|
|
}
|
|
if (remov != thisentry->removable)
|
|
continue;
|
|
if (bestmatches < 2) {
|
|
bestmatches = 2;
|
|
bestmatch = thisentry;
|
|
}
|
|
if (thisentry->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", thisentry->manufacturer, manu);
|
|
if (strcmp(thisentry->manufacturer, manu))
|
|
continue;
|
|
if (bestmatches < 3) {
|
|
bestmatches = 3;
|
|
bestmatch = thisentry;
|
|
}
|
|
if (thisentry->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", thisentry->model, model);
|
|
if (strcmp(thisentry->model, model))
|
|
continue;
|
|
if (bestmatches < 4) {
|
|
bestmatches = 4;
|
|
bestmatch = thisentry;
|
|
}
|
|
if (thisentry->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", thisentry->version, rev);
|
|
if (strcmp(thisentry->version, rev))
|
|
continue;
|
|
if (bestmatches < 5) {
|
|
bestmatches = 5;
|
|
bestmatch = thisentry;
|
|
break;
|
|
}
|
|
}
|
|
#if NUK > 0
|
|
if (!bestmatch)
|
|
bestmatch = &unknowndev;
|
|
#endif
|
|
if (!bestmatch)
|
|
printf("No matching driver.\n");
|
|
return bestmatch;
|
|
}
|