scsiconf.c

MIPS处理器的bootloader,龙芯就是用的修改过的PMON2

/*	$OpenBSD: scsiconf.c,v 1.56 2001/05/24 04:13:16 angelos Exp $	*/
/*	$NetBSD: scsiconf.c,v 1.57 1996/05/02 01:09:01 neil Exp $	*/

/*
 * Copyright (c) 1994 Charles Hannum.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Charles Hannum.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * Originally written by Julian Elischer ([e-mail])
 * for TRW Financial Systems for use under the MACH(2.5) operating system.
 *
 * TRW Financial Systems, in accordance with their agreement with Carnegie
 * Mellon University, makes this software available to CMU to distribute
 * or use in any manner that they see fit as long as this message is kept with
 * the software. For this reason TFS also grants any other persons or
 * organisations permission to use or modify this software.
 *
 * TFS supplies this software to be publicly redistributed
 * on the understanding that TFS is not responsible for the correct
 * functioning of this software in any circumstances.
 *
 * Ported to run under 386BSD by Julian Elischer ([e-mail]) Sept 1992
 */

#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/device.h>

#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>

#if 0
#if NCALS > 0
	{ T_PROCESSOR, T_FIXED, 1,
	  0, 0, 0 },
#endif	/* NCALS */
#if NBLL > 0
	{ T_PROCESSOR, T_FIXED, 1,
	  "AEG     ", "READER          ", "V1.0" },
#endif	/* NBLL */
#if NKIL > 0
	{ T_SCANNER, T_FIXED, 0,
	  "KODAK   ", "IL Scanner 900  ", 0 },
#endif	/* NKIL */
#endif

/*
 * Declarations
 */
void scsi_probedev __P((struct scsibus_softc *, int, int));
int scsi_probe_bus __P((int bus, int target, int lun));

struct scsi_device probe_switch = {
	NULL,
	NULL,
	NULL,
	NULL,
};

int scsibusmatch __P((struct device *, void *, void *));
void scsibusattach __P((struct device *, struct device *, void *));
int  scsibusactivate __P((struct device *, enum devact));
int  scsibusdetach __P((struct device *, int));
void scsibuszeroref __P((struct device *));

int scsibussubmatch __P((struct device *, void *, void *));



struct cfattach scsibus_ca = {
	sizeof(struct scsibus_softc), scsibusmatch, scsibusattach,
	scsibusdetach, scsibusactivate, scsibuszeroref
};

struct cfdriver scsibus_cd = {
	NULL, "scsibus", DV_DULL
};

int scsidebug_targets = SCSIDEBUG_TARGETS;
int scsidebug_luns = SCSIDEBUG_LUNS;
int scsidebug_level = SCSIDEBUG_LEVEL;

int scsi_autoconf = SCSI_AUTOCONF;

int scsibusprint __P((void *, const char *));

int
scsiprint(aux, pnp)
	void *aux;
	const char *pnp;
{
#ifndef __OpenBSD__
	struct scsi_link *l = aux;
#endif

	/* only "scsibus"es can attach to "scsi"s; easy. */
	if (pnp)
		printf("scsibus at %s", pnp);

#ifndef __OpenBSD__
	/* don't print channel if the controller says there can be only one. */
	if (l->channel != SCSI_CHANNEL_ONLY_ONE)
		printf(" channel %d", l->channel);
#endif
	return (UNCONF);
}

int
scsibusmatch(parent, match, aux)
        struct device *parent;
        void *match, *aux;
{

	return 1;
}

/*
 * The routine called by the adapter boards to get all their
 * devices configured in.
 */
void
scsibusattach(parent, self, aux)
        struct device *parent, *self;
        void *aux;
{
	struct scsibus_softc *sb = (struct scsibus_softc *)self;
	struct scsi_link *sc_link_proto = aux;
	int nbytes, i;
	extern int cold;

	if (!cold)
		scsi_autoconf = 0;

	sc_link_proto->scsibus = sb->sc_dev.dv_unit;
	sb->adapter_link = sc_link_proto;
	if (sb->adapter_link->adapter_buswidth == 0)
		sb->adapter_link->adapter_buswidth = 8;
	sb->sc_buswidth = sb->adapter_link->adapter_buswidth;
	if (sb->adapter_link->luns == 0)
		sb->adapter_link->luns = 8;

	printf(": %d targets\n", sb->sc_buswidth);

	nbytes = sb->sc_buswidth * sizeof(struct scsi_link **);
	sb->sc_link = (struct scsi_link ***)malloc(nbytes, M_DEVBUF, M_NOWAIT);
	if (sb->sc_link == NULL)
		panic("scsibusattach: can't allocate target links");
	nbytes = 8 * sizeof(struct scsi_link *);
	for (i = 0; i < sb->sc_buswidth; i++) {
		sb->sc_link[i] = (struct scsi_link **)malloc(nbytes,
		    M_DEVBUF, M_NOWAIT);
		if (sb->sc_link[i] == NULL)
			panic("scsibusattach: can't allocate lun links");
		bzero(sb->sc_link[i], nbytes);
	}

#if defined(SCSI_DELAY) && SCSI_DELAY > 2
	printf("%s: waiting for scsi devices to settle\n",
		sb->sc_dev.dv_xname);
#else	/* SCSI_DELAY > 2 */
#undef	SCSI_DELAY
#define SCSI_DELAY 2
#endif	/* SCSI_DELAY */
	delay(1000000 * SCSI_DELAY);

	scsi_probe_bus(sb->sc_dev.dv_unit, -1, -1);
}


int
scsibusactivate(dev, act)
	struct device *dev;
	enum devact act;
{
	return (config_activate_children(dev, act));
}

int  
scsibusdetach (dev, type)
	struct device *dev;
	int type;
{
	return (config_detach_children(dev, type));
}

void
scsibuszeroref(dev)
	struct device *dev;
{
	struct scsibus_softc *sb = (struct scsibus_softc *)dev;
	int i;

	for (i = 0; i < sb->sc_buswidth; i++) {
		if (sb->sc_link[i] != NULL)
			free(sb->sc_link[i], M_DEVBUF);
	}
	
	free(sb->sc_link, M_DEVBUF);
}



int
scsibussubmatch(parent, match, aux)
	struct device *parent;
	void *match, *aux;
{
	struct cfdata *cf = match;
	struct scsibus_attach_args *sa = aux;
	struct scsi_link *sc_link = sa->sa_sc_link;

	if (cf->cf_loc[0] != -1 && cf->cf_loc[0] != sc_link->target)
		return 0;
	if (cf->cf_loc[1] != -1 && cf->cf_loc[1] != sc_link->lun)
		return 0;
	return ((*cf->cf_attach->ca_match)(parent, match, aux));
}

/*
 * Probe the requested scsi bus. It must be already set up.
 * -1 requests all set up scsi busses.
 * target and lun optionally narrow the search if not -1
 */
int
scsi_probe_busses(bus, target, lun)
	int bus, target, lun;
{

	if (bus == -1) {
		for (bus = 0; bus < scsibus_cd.cd_ndevs; bus++)
			if (scsibus_cd.cd_devs[bus])
				scsi_probe_bus(bus, target, lun);
		return 0;
	} else {
		return scsi_probe_bus(bus, target, lun);
	}
}

/*
 * Probe the requested scsi bus. It must be already set up.
 * target and lun optionally narrow the search if not -1
 */
int
scsi_probe_bus(bus, target, lun)
	int bus, target, lun;
{
	struct scsibus_softc *scsi;
	int maxtarget, mintarget, maxlun, minlun;
	u_int16_t scsi_addr;

	if (bus < 0 || bus >= scsibus_cd.cd_ndevs)
		return ENXIO;
	scsi = scsibus_cd.cd_devs[bus];
	if (!scsi)
		return ENXIO;

	scsi_addr = scsi->adapter_link->adapter_target;

	if (target == -1) {
		maxtarget = scsi->adapter_link->adapter_buswidth - 1;
		mintarget = 0;
	} else {
		if (target < 0 ||
		    target >= scsi->adapter_link->adapter_buswidth)
			return EINVAL;
		maxtarget = mintarget = target;
	}

	if (lun == -1) {
		maxlun = scsi->adapter_link->luns - 1;
		minlun = 0;
	} else {
		if (lun < 0 || lun > 7)
			return EINVAL;
		maxlun = minlun = lun;
	}

	for (target = mintarget; target <= maxtarget; target++) {
		if (target == scsi_addr)
			continue;
		for (lun = minlun; lun <= maxlun; lun++) {
			/*
			 * See if there's a device present, and configure it.
			 */
			scsi_probedev(scsi, target, lun);
			if ((scsi->moreluns & (1 << target)) == 0)
				break;
			/* otherwise something says we should look further */
		}
	}
	return 0;
}

void
scsi_strvis(dst, src, len)
	u_char *dst, *src;
	int len;
{

	/* Trim leading and trailing blanks and NULs. */
	while (len > 0 && (src[0] == ' ' || src[0] == '\0' || src[0] == 0xff))
		++src, --len;
	while (len > 0 && (src[len-1] == ' ' || src[len-1] == '\0' ||
	    src[len-1] == 0xff))
		--len;

	while (len > 0) {
		if (*src < 0x20 || *src >= 0x80) {
			/* non-printable characters */
			*dst++ = '\\';
			*dst++ = ((*src & 0300) >> 6) + '0';
			*dst++ = ((*src & 0070) >> 3) + '0';
			*dst++ = ((*src & 0007) >> 0) + '0';
		} else if (*src == '\\') {
			/* quote characters */
			*dst++ = '\\';
			*dst++ = '\\';
		} else {
			/* normal characters */
			*dst++ = *src;
		}
		++src, --len;
	}

	*dst++ = 0;
}

struct scsi_quirk_inquiry_pattern {
	struct scsi_inquiry_pattern pattern;
	u_int16_t quirks;
};

struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
#ifndef PMON
	{{T_CDROM, T_REMOV,
	 "CHINON  ", "CD-ROM CDS-431  ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "Chinon  ", "CD-ROM CDS-525  ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "CHINON  ", "CD-ROM CDS-535  ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "DEC     ", "RRD42   (C) DEC ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "DENON   ", "DRD-25X         ", "V"},    SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "HP      ", "C4324/C4325     ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "IMS     ", "CDD521/10       ", "2.06"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "MATSHITA", "CD-ROM CR-5XX   ", "1.0b"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "MEDAVIS ", "RENO CD-ROMX2A  ", ""},	  SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "MEDIAVIS", "CDR-H93MV       ", "1.3"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "NEC     ", "CD-ROM DRIVE:55 ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "NEC     ", "CD-ROM DRIVE:83 ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "NEC     ", "CD-ROM DRIVE:84 ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "NEC     ", "CD-ROM DRIVE:210", "1.0"},  SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "NEC     ", "CD-ROM DRIVE:501", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "NEC     ", "CD-ROM DRIVE:841", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "PIONEER ", "CD-ROM DR-124X  ", "1.01"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "SONY    ", "CD-ROM CDU-541  ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "SONY    ", "CD-ROM CDU-55S  ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "SONY    ", "CD-ROM CDU-561  ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "SONY    ", "CD-ROM CDU-8003A", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "SONY    ", "CD-ROM CDU-8012 ", ""},     SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "TEAC    ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "TEAC    ", "CD-ROM CD-56S   ", "1.0B"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "TEXEL   ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.10"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "TOSHIBA ", "XM-4101TASUNSLCD", "1755"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,  
	 "ShinaKen", "CD-ROM DM-3x1S", "1.04"},   SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "JVC     ", "R2626           ", "1.55"}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "CyberDrv", "", ""}, SDEV_NOLUNS},
	{{T_CDROM, T_REMOV,
	 "PLEXTOR", "CD-ROM PX-40TS", "1.01"}, SDEV_NOSYNC},

 	{{T_OPTICAL, T_REMOV,
 	 "EPSON   ", "OMD-5010        ", "3.08"}, SDEV_NOLUNS},
	{{T_OPTICAL, T_REMOV,
	 "FUJITSU", "M2513A",            "0800"}, SDEV_NOMODESENSE},
	{{T_OPTICAL, T_REMOV,
	 "DELTIS  ", "MOS321          ", "3.30"}, SDEV_NOMODESENSE},
 
	{{T_OPTICAL, T_REMOV,
	 "EPSON   ", "OMD-5010        ", "3.08"}, SDEV_NOLUNS},
	{{T_OPTICAL, T_REMOV,
	 "FUJITSU", "M2513A",            "0800"}, SDEV_NOMODESENSE},
	{{T_OPTICAL, T_REMOV,
	 "DELTIS  ", "MOS321          ", "3.30"}, SDEV_NOMODESENSE},

	{{T_DIRECT, T_FIXED,
	 "MICROP  ", "1588-15MBSUN0669", ""},     SDEV_AUTOSAVE},
	{{T_DIRECT, T_FIXED,
	 "DEC     ", "RZ55     (C) DEC", ""},     SDEV_AUTOSAVE},
	{{T_DIRECT, T_FIXED,
	 "EMULEX  ", "MD21/S2     ESDI", "A00"},  SDEV_FORCELUNS|SDEV_AUTOSAVE},
	/* Gives non-media hardware failure in response to start-unit command */
	{{T_DIRECT, T_FIXED,
	 "HITACHI", "DK515C",            "CP15"}, SDEV_NOSTARTUNIT},
	{{T_DIRECT, T_FIXED,
	 "HITACHI", "DK515C",            "CP16"}, SDEV_NOSTARTUNIT},
	{{T_DIRECT, T_FIXED,
	 "IBMRAID ", "0662S",            ""},     SDEV_AUTOSAVE},
	{{T_DIRECT, T_FIXED,
	 "IBM     ", "0663H",            ""},     SDEV_AUTOSAVE},
	{{T_DIRECT, T_FIXED,
	 "IBM",	  "0664",		 ""},	  SDEV_AUTOSAVE},
	{{T_DIRECT, T_FIXED,
	 "IBM     ", "H3171-S2",         ""},	  SDEV_NOLUNS|SDEV_AUTOSAVE},
	{{T_DIRECT, T_FIXED,
	 "IBM     ", "KZ-C",		 ""},	  SDEV_AUTOSAVE},
	/* Broken IBM disk */
	{{T_DIRECT, T_FIXED,
	 ""	   , "DFRSS2F",		 ""},	  SDEV_AUTOSAVE},
	{{T_DIRECT, T_FIXED,
	 "IBM"	   , "DDY",		 ""},	  SDEV_NOLUNS},
	{{T_DIRECT, T_FIXED,
	 "IBM"	   , "DPS",		 ""},	  SDEV_NOLUNS},
	{{T_DIRECT, T_FIXED,
	 "MAXTOR  ", "XT-3280         ", ""},     SDEV_NOLUNS},
	{{T_DIRECT, T_FIXED,
	 "MAXTOR  ", "XT-4380S        ", ""},     SDEV_NOLUNS},
	{{T_DIRECT, T_FIXED,
	 "MAXTOR  ", "MXT-1240S       ", ""},     SDEV_NOLUNS},
	{{T_DIRECT, T_FIXED,
	 "MAXTOR  ", "XT-4170S        ", ""},     SDEV_NOLUNS},
	{{T_DIRECT, T_FIXED,
	 "MAXTOR  ", "XT-8760S",	 ""},     SDEV_NOLUNS},
	{{T_DIRECT, T_FIXED,
	 "MAXTOR  ", "LXT-213S        ", ""},     SDEV_NOLUNS},