601 lines
13 KiB
C
601 lines
13 KiB
C
/*
|
|
* Written by Julian Elischer (julian@tfs.com)
|
|
* for TRW Financial Systems for use under the MACH(2.5) operating system.
|
|
* Hacked by Theo de Raadt <deraadt@fsa.ca>
|
|
*
|
|
* 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.
|
|
*
|
|
* $Id: scsiconf.c,v 1.10 1993/12/17 08:50:49 mycroft Exp $
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/user.h>
|
|
#include <sys/dkbad.h>
|
|
#include <sys/disklabel.h>
|
|
|
|
#include <scsi/scsi_all.h>
|
|
#include <scsi/scsiconf.h>
|
|
|
|
#include "st.h"
|
|
#include "sd.h"
|
|
#include "ch.h"
|
|
#include "cd.h"
|
|
#define NBLL 0
|
|
#define NCALS 0
|
|
#define NKIL 0
|
|
|
|
#if NSD > 0
|
|
extern int sdattach();
|
|
#endif NSD
|
|
#if NST > 0
|
|
extern int stattach();
|
|
#endif NST
|
|
#if NCH > 0
|
|
extern int chattach();
|
|
#endif NCH
|
|
#if NCD > 0
|
|
extern int cdattach();
|
|
#endif NCD
|
|
#if NBLL > 0
|
|
extern int bllattach();
|
|
#endif NBLL
|
|
#if NCALS > 0
|
|
extern int calsattach();
|
|
#endif NCALS
|
|
#if NKIL > 0
|
|
extern int kil_attach();
|
|
#endif NKIL
|
|
|
|
struct scsidevs knowndevs[] = {
|
|
#if NSD > 0
|
|
{
|
|
SC_TSD, T_DIRECT, T_FIXED, "standard", "any" ,"any",
|
|
sdattach, "sd" ,SC_ONE_LU
|
|
}, {
|
|
SC_TSD, T_DIRECT, T_FIXED, "MAXTOR ", "XT-4170S ", "B5A ",
|
|
sdattach, "mx1", SC_ONE_LU
|
|
},
|
|
#endif NSD
|
|
#if NST > 0
|
|
{
|
|
SC_TST, T_SEQUENTIAL, T_REMOV, "standard", "any", "any",
|
|
stattach, "st" ,SC_ONE_LU
|
|
},
|
|
#endif NST
|
|
#if NCD > 0
|
|
{
|
|
SC_TCD, T_READONLY, T_REMOV, "SONY ", "CD-ROM CDU-8012 ", "3.1a",
|
|
cdattach, "cd", SC_ONE_LU
|
|
}, {
|
|
SC_TCD, T_READONLY, T_REMOV, "PIONEER ", "CD-ROM DRM-600 ", "any",
|
|
cdattach, "cd", SC_MORE_LUS
|
|
},
|
|
#endif NCD
|
|
#if NCALS > 0
|
|
{
|
|
-1, T_PROCESSOR, T_FIXED, "standard" , "any" ,"any",
|
|
calsattach, "cals", SC_MORE_LUS
|
|
}
|
|
#endif NCALS
|
|
#if NCH > 0
|
|
{
|
|
-1, T_CHANGER, T_REMOV, "standard", "any", "any",
|
|
chattach, "ch", SC_ONE_LU
|
|
},
|
|
#endif NCH
|
|
#if NBLL > 0
|
|
{
|
|
-1, T_PROCESSOR, T_FIXED, "AEG ", "READER ", "V1.0",
|
|
bllattach, "bll", SC_MORE_LUS
|
|
},
|
|
#endif NBLL
|
|
#if NKIL > 0
|
|
{
|
|
-1, T_SCANNER, T_FIXED, "KODAK ", "IL Scanner 900 ", "any",
|
|
kil_attach, "kil", SC_ONE_LU
|
|
},
|
|
#endif NKIL
|
|
};
|
|
|
|
/* controls debug level within the scsi subsystem: see scsiconf.h */
|
|
int scsi_debug = 0;
|
|
|
|
struct scsidevs *
|
|
scsi_probe(int masunit, struct scsi_switch *sw, int physid, int type, int want)
|
|
{
|
|
static struct scsi_inquiry_data inqbuf;
|
|
struct scsidevs *ret = (struct scsidevs *)0;
|
|
int targ = physid >> 3;
|
|
int lun = physid & 7;
|
|
char *qtype=NULL, *dtype=NULL, *desc;
|
|
char manu[9], model[17], revision[5];
|
|
int len;
|
|
|
|
bzero(&inqbuf, sizeof inqbuf);
|
|
|
|
/*printf("probe: %s%d targ %d lun %d\n",
|
|
sw->name, masunit, targ, lun);*/
|
|
|
|
if( scsi_ready(masunit, targ, lun, sw,
|
|
SCSI_NOSLEEP | SCSI_NOMASK) != COMPLETE)
|
|
return (struct scsidevs *)-1;
|
|
|
|
if( scsi_inquire(masunit, targ, lun, sw, (u_char *)&inqbuf,
|
|
SCSI_NOSLEEP | SCSI_NOMASK) != COMPLETE)
|
|
return (struct scsidevs *)0;
|
|
|
|
if( inqbuf.device_qualifier==3 && inqbuf.device_type==T_NODEVICE)
|
|
return (struct scsidevs *)0;
|
|
|
|
switch(inqbuf.device_qualifier) {
|
|
case 0:
|
|
qtype = "";
|
|
break;
|
|
case 1:
|
|
qtype = "Unit not Connected!";
|
|
break;
|
|
case 2:
|
|
qtype =", Reserved Peripheral Qualifier!";
|
|
break;
|
|
case 3:
|
|
qtype = ", The Target can't support this Unit!";
|
|
break;
|
|
default:
|
|
dtype = "vendor specific";
|
|
qtype = "";
|
|
break;
|
|
}
|
|
|
|
if (dtype == NULL) {
|
|
switch(inqbuf.device_type) {
|
|
case T_DIRECT:
|
|
dtype = "direct";
|
|
break;
|
|
case T_SEQUENTIAL:
|
|
dtype = "seq";
|
|
break;
|
|
case T_PRINTER:
|
|
dtype = "pr";
|
|
break;
|
|
case T_PROCESSOR:
|
|
dtype = "cpu";
|
|
break;
|
|
case T_READONLY:
|
|
dtype = "ro";
|
|
break;
|
|
case T_WORM:
|
|
dtype = "worm";
|
|
break;
|
|
case T_SCANNER:
|
|
dtype = "scan";
|
|
break;
|
|
case T_OPTICAL:
|
|
dtype = "optic";
|
|
break;
|
|
case T_CHANGER:
|
|
dtype = "changer";
|
|
break;
|
|
case T_COMM:
|
|
dtype = "comm";
|
|
break;
|
|
default:
|
|
dtype = "???";
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(inqbuf.ansii_version > 0) {
|
|
len = inqbuf.additional_length +
|
|
((char *)inqbuf.unused - (char *)&inqbuf);
|
|
if( len > sizeof(struct scsi_inquiry_data) - 1)
|
|
len = sizeof(struct scsi_inquiry_data) - 1;
|
|
desc = inqbuf.vendor;
|
|
desc[len-(desc-(char *)&inqbuf)] = 0;
|
|
strncpy(manu, inqbuf.vendor, sizeof inqbuf.vendor);
|
|
manu[sizeof inqbuf.vendor] = '\0';
|
|
strncpy(model, inqbuf.product, sizeof inqbuf.product);
|
|
model[sizeof inqbuf.product] = '\0';
|
|
strncpy(revision, inqbuf.revision, sizeof inqbuf.revision);
|
|
revision[sizeof inqbuf.revision] = '\0';
|
|
} else {
|
|
desc = "early protocol device";
|
|
strcpy(manu, "????");
|
|
strcpy(model, "");
|
|
strcpy(revision, "");
|
|
}
|
|
|
|
if(want)
|
|
goto print;
|
|
|
|
ret = selectdev(masunit, targ, lun, sw, inqbuf.device_qualifier,
|
|
inqbuf.device_type, inqbuf.removable, manu, model, revision, type);
|
|
if(sw->printed[targ] & (1<<lun))
|
|
return ret;
|
|
|
|
print:
|
|
printf("%s%d targ %d lun %d: type %d(%s) %s <%s%s%s> SCSI%d\n",
|
|
sw->name, masunit, targ, lun,
|
|
inqbuf.device_type, dtype,
|
|
inqbuf.removable ? "removable" : "fixed",
|
|
manu, model, revision, inqbuf.ansii_version);
|
|
if(qtype[0])
|
|
printf("%s%d targ %d lun %d: qualifier %d(%s)\n",
|
|
sw->name, masunit, targ, lun,
|
|
inqbuf.device_qualifier, qtype);
|
|
sw->printed[targ] |= (1<<lun);
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
scsi_warn(int masunit, int mytarg, struct scsi_switch *sw)
|
|
{
|
|
struct scsidevs *match = (struct scsidevs *)0;
|
|
int physid;
|
|
int targ, lun;
|
|
|
|
for(targ=0; targ<8; targ++) {
|
|
if(targ==mytarg)
|
|
continue;
|
|
for(lun=0; lun<8; lun++) {
|
|
/* check if device already used, or empty */
|
|
if( sw->empty[targ] & (1<<lun) )
|
|
continue;
|
|
if( sw->used[targ] & (1<<lun) )
|
|
continue;
|
|
|
|
physid = targ*8 + lun;
|
|
match = scsi_probe(masunit, sw, physid, 0, 0);
|
|
|
|
if(match == (struct scsidevs *)-1) {
|
|
if(lun==0)
|
|
sw->empty[targ] = 0xff;
|
|
else
|
|
sw->empty[targ] = 0xff;
|
|
continue;
|
|
}
|
|
if(match) {
|
|
targ = physid >> 3;
|
|
lun = physid & 7;
|
|
if(match->flags & SC_MORE_LUS)
|
|
sw->empty[targ] |= (1<<lun);
|
|
else
|
|
sw->empty[targ] = 0xff;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* not quite perfect. If we have two "drive ?" entries, this will
|
|
* probe through all the devices twice. It should have realized that
|
|
* any device that is not found the first time won't exist later on.
|
|
*/
|
|
int
|
|
scsi_attach(int masunit, int mytarg, struct scsi_switch *sw,
|
|
int *physid, int *unit, int type)
|
|
{
|
|
struct scsidevs *match = (struct scsidevs *)0;
|
|
int targ, lun;
|
|
int ret=0;
|
|
|
|
/*printf("%s%d probing at targ %d lun %d..\n",
|
|
sw->name, masunit, *physid >> 3, *physid & 7);*/
|
|
|
|
if( *physid!=-1 ) {
|
|
targ = *physid >> 3;
|
|
lun = *physid & 7;
|
|
|
|
if( (sw->empty[targ] & (1<<lun)) || (sw->used[targ] & (1<<lun)) )
|
|
return 0;
|
|
|
|
match = scsi_probe(masunit, sw, *physid, type, 0);
|
|
if(match == (struct scsidevs *)-1) {
|
|
match = (struct scsidevs *)0;
|
|
if(lun==0)
|
|
sw->empty[targ] = 0xff;
|
|
else
|
|
sw->empty[targ] |= (1<<lun);
|
|
return 0;
|
|
}
|
|
|
|
if(!match)
|
|
return 0;
|
|
|
|
ret = (*(match->attach_rtn))(masunit, sw, *physid, unit);
|
|
goto success;
|
|
}
|
|
|
|
for(targ=0; targ<8; targ++) {
|
|
if(targ==mytarg)
|
|
continue;
|
|
for(lun=0; lun<8; lun++) {
|
|
if( (sw->empty[targ] & (1<<lun)) || (sw->used[targ] & (1<<lun)) )
|
|
continue;
|
|
|
|
*physid = targ*8 + lun;
|
|
match = scsi_probe(masunit, sw, *physid, type, 0);
|
|
if( match==(struct scsidevs *)-1) {
|
|
if(lun==0)
|
|
sw->empty[targ] = 0xff;
|
|
else
|
|
sw->empty[targ] |= (1<<lun);
|
|
match = (struct scsidevs *)0;
|
|
continue;
|
|
}
|
|
if(!match)
|
|
break;
|
|
ret = (*(match->attach_rtn))(masunit, sw, *physid, unit);
|
|
if(ret)
|
|
goto success;
|
|
return 0;
|
|
}
|
|
}
|
|
*physid = -1; /* failed... */
|
|
return 0;
|
|
|
|
success:
|
|
targ = *physid >> 3;
|
|
lun = *physid & 7;
|
|
if(match->flags & SC_MORE_LUS)
|
|
sw->used[targ] |= (1<<lun);
|
|
else
|
|
sw->used[targ] = 0xff;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Try make as good a match as possible with
|
|
* available sub drivers
|
|
*/
|
|
struct scsidevs *
|
|
selectdev(int unit, int target, int lu, struct scsi_switch *sw, int qual,
|
|
int dtype, int remov, char *manu, char *model, char *rev, int type)
|
|
{
|
|
struct scsidevs *sdbest = (struct scsidevs *)0;
|
|
struct scsidevs *sdent = knowndevs;
|
|
int numents = sizeof(knowndevs)/sizeof(struct scsidevs);
|
|
int count = 0, sdbestes = 0;
|
|
|
|
dtype |= (qual << 5);
|
|
|
|
sdent--;
|
|
while( count++ < numents) {
|
|
sdent++;
|
|
if(dtype != sdent->dtype)
|
|
continue;
|
|
if(type != sdent->type)
|
|
continue;
|
|
if(sdbestes < 1) {
|
|
sdbestes = 1;
|
|
sdbest = sdent;
|
|
}
|
|
if(remov != sdent->removable)
|
|
continue;
|
|
if(sdbestes < 2) {
|
|
sdbestes = 2;
|
|
sdbest = sdent;
|
|
}
|
|
if(sdent->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", sdent->manufacturer, manu);
|
|
if(strcmp(sdent->manufacturer, manu))
|
|
continue;
|
|
if(sdbestes < 3) {
|
|
sdbestes = 3;
|
|
sdbest = sdent;
|
|
}
|
|
if(sdent->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-",sdent->model, model);
|
|
if(strcmp(sdent->model, model))
|
|
continue;
|
|
if(sdbestes < 4) {
|
|
sdbestes = 4;
|
|
sdbest = sdent;
|
|
}
|
|
if(sdent->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-",sdent->version, rev);
|
|
if(strcmp(sdent->version, rev))
|
|
continue;
|
|
if(sdbestes < 5) {
|
|
sdbestes = 5;
|
|
sdbest = sdent;
|
|
break;
|
|
}
|
|
}
|
|
return sdbest;
|
|
}
|
|
|
|
/*
|
|
* Do a scsi operation asking a device if it is
|
|
* ready. Use the scsi_cmd routine in the switch
|
|
* table.
|
|
*/
|
|
int
|
|
scsi_ready(int unit, int target, int lu,
|
|
struct scsi_switch *sw, int flags)
|
|
{
|
|
struct scsi_test_unit_ready scsi_cmd;
|
|
struct scsi_xfer scsi_xfer;
|
|
volatile int rval;
|
|
int key;
|
|
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
bzero(&scsi_xfer, sizeof(scsi_xfer));
|
|
scsi_cmd.op_code = TEST_UNIT_READY;
|
|
|
|
scsi_xfer.flags = flags | INUSE;
|
|
scsi_xfer.adapter = unit;
|
|
scsi_xfer.targ = target;
|
|
scsi_xfer.lu = lu;
|
|
scsi_xfer.cmd = (struct scsi_generic *)&scsi_cmd;
|
|
scsi_xfer.retries = 8;
|
|
scsi_xfer.timeout = 10000;
|
|
scsi_xfer.cmdlen = sizeof(scsi_cmd);
|
|
scsi_xfer.data = 0;
|
|
scsi_xfer.datalen = 0;
|
|
scsi_xfer.resid = 0;
|
|
scsi_xfer.when_done = 0;
|
|
scsi_xfer.done_arg = 0;
|
|
retry: scsi_xfer.error = 0;
|
|
|
|
/* don't use interrupts! */
|
|
|
|
rval = (*(sw->scsi_cmd))(&scsi_xfer);
|
|
if (rval != COMPLETE) {
|
|
if(scsi_debug) {
|
|
printf("scsi error, rval = 0x%x\n", rval);
|
|
printf("code from driver: 0x%x\n", scsi_xfer.error);
|
|
}
|
|
switch(scsi_xfer.error) {
|
|
case XS_SENSE:
|
|
/*
|
|
* Any sense value is illegal except UNIT ATTENTION
|
|
* In which case we need to check again to get the
|
|
* correct response. (especially exabytes)
|
|
*/
|
|
if(scsi_xfer.sense.error_class == 7 ) {
|
|
key = scsi_xfer.sense.ext.extended.sense_key ;
|
|
switch(key) {
|
|
case 2: /* not ready BUT PRESENT! */
|
|
return(COMPLETE);
|
|
case 6:
|
|
spinwait(1000);
|
|
if(scsi_xfer.retries--) {
|
|
scsi_xfer.flags &= ~ITSDONE;
|
|
goto retry;
|
|
}
|
|
return(COMPLETE);
|
|
default:
|
|
if(scsi_debug)
|
|
printf("%d:%d,key=%x.", target,
|
|
lu, key);
|
|
}
|
|
}
|
|
return(HAD_ERROR);
|
|
case XS_BUSY:
|
|
spinwait(1000);
|
|
if(scsi_xfer.retries--) {
|
|
scsi_xfer.flags &= ~ITSDONE;
|
|
goto retry;
|
|
}
|
|
return COMPLETE; /* it's busy so it's there */
|
|
case XS_TIMEOUT:
|
|
default:
|
|
return HAD_ERROR;
|
|
}
|
|
}
|
|
return COMPLETE;
|
|
}
|
|
|
|
/*
|
|
* Do a scsi operation asking a device what it is
|
|
* Use the scsi_cmd routine in the switch table.
|
|
*/
|
|
int
|
|
scsi_inquire(int unit, int target, int lu, struct scsi_switch *sw,
|
|
u_char *inqbuf, int flags)
|
|
{
|
|
struct scsi_inquiry scsi_cmd;
|
|
struct scsi_xfer scsi_xfer;
|
|
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
bzero(&scsi_xfer, sizeof(scsi_xfer));
|
|
scsi_cmd.op_code = INQUIRY;
|
|
scsi_cmd.length = sizeof(struct scsi_inquiry_data);
|
|
|
|
scsi_xfer.flags = flags | SCSI_DATA_IN | INUSE;
|
|
scsi_xfer.adapter = unit;
|
|
scsi_xfer.targ = target;
|
|
scsi_xfer.lu = lu;
|
|
scsi_xfer.retries = 8;
|
|
scsi_xfer.timeout = 10000;
|
|
scsi_xfer.cmd = (struct scsi_generic *)&scsi_cmd;
|
|
scsi_xfer.cmdlen = sizeof(struct scsi_inquiry);
|
|
scsi_xfer.data = inqbuf;
|
|
scsi_xfer.datalen = sizeof(struct scsi_inquiry_data);
|
|
scsi_xfer.resid = sizeof(struct scsi_inquiry_data);
|
|
scsi_xfer.when_done = 0;
|
|
scsi_xfer.done_arg = 0;
|
|
|
|
retry:
|
|
scsi_xfer.error=0;
|
|
/* don't use interrupts! */
|
|
|
|
if ((*(sw->scsi_cmd))(&scsi_xfer) != COMPLETE) {
|
|
if(scsi_debug)
|
|
printf("inquiry had error(0x%x) ",scsi_xfer.error);
|
|
switch(scsi_xfer.error) {
|
|
case XS_NOERROR:
|
|
break;
|
|
case XS_SENSE:
|
|
/*
|
|
* Any sense value is illegal except UNIT ATTENTION
|
|
* In which case we need to check again to get the
|
|
* correct response. (especially exabytes)
|
|
*/
|
|
if( scsi_xfer.sense.error_class==7 &&
|
|
scsi_xfer.sense.ext.extended.sense_key==6) {
|
|
/* it's changed so it's there */
|
|
spinwait(1000);
|
|
if(scsi_xfer.retries--) {
|
|
scsi_xfer.flags &= ~ITSDONE;
|
|
goto retry;
|
|
}
|
|
return COMPLETE;
|
|
}
|
|
return HAD_ERROR;
|
|
case XS_BUSY:
|
|
spinwait(1000);
|
|
if(scsi_xfer.retries--) {
|
|
scsi_xfer.flags &= ~ITSDONE;
|
|
goto retry;
|
|
}
|
|
case XS_TIMEOUT:
|
|
default:
|
|
return(HAD_ERROR);
|
|
}
|
|
}
|
|
return COMPLETE;
|
|
}
|
|
|
|
/*
|
|
* convert a physical address to 3 bytes,
|
|
* MSB at the lowest address,
|
|
* LSB at the highest.
|
|
*/
|
|
void
|
|
lto3b(u_long val, u_char *bytes)
|
|
{
|
|
*bytes++ = (val&0xff0000)>>16;
|
|
*bytes++ = (val&0xff00)>>8;
|
|
*bytes = val&0xff;
|
|
}
|
|
|
|
/*
|
|
* The reverse of lto3b
|
|
*/
|
|
u_long
|
|
_3btol(u_char *bytes)
|
|
{
|
|
u_long rc;
|
|
|
|
rc = (*bytes++ << 16);
|
|
rc += (*bytes++ << 8);
|
|
rc += *bytes;
|
|
return rc;
|
|
}
|
|
|