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Experimental method of getting a scsi unit # from scsi target.

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This commit is contained in:
briggs 1994-11-27 19:59:09 +00:00
parent 38952df227
commit 0656455667
1 changed files with 52 additions and 5 deletions
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57
sys/arch/mac68k/mac68k/autoconf.c
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@ -1,4 +1,4 @@
/* $NetBSD: autoconf.c,v 1.11 1994/10/26 08:46:54 cgd Exp $ */
/* $NetBSD: autoconf.c,v 1.12 1994/11/27 19:59:09 briggs Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -109,12 +109,15 @@
#include <machine/cpu.h>
#include <machine/pte.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
/*
* The following several variables are related to
* the configuration process, and are used in initializing
* the machine.
*/
int cold; /* if 1, still working on cold-start */
int cold; /* if 1 (locore.s), still working on cold-start */
#ifdef DEBUG
int acdebug = 0;
@ -252,10 +255,54 @@ struct device *bootdv = NULL;
#define PARTITIONMASK 0x7
#define UNITSHIFT 3
/*
* Map a SCSI bus, target, lun to a device number.
* This could be tape, disk, CD. The calling routine, though,
* assumes DISK. It would be nice to allow CD, too...
*/
static int
target_to_unit(u_long target)
target_to_unit(u_long bus, u_long target, u_long lun)
{
return sd_target_to_unit(target);
int targ;
struct scsibus_data *scsi;
struct scsi_link *sc_link;
struct device *sc_dev;
extern struct cfdriver scsibuscd;
if (target < 0 || target > 7 || lun < 0 || lun > 7) {
printf("scsi target to unit, target (%d) or lun (%d)"
" out of range.\n", target, lun);
return -1;
}
if (bus == -1) {
for (bus = 0 ; bus < scsibuscd.cd_ndevs ; bus++) {
if (scsibuscd.cd_devs[bus]) {
scsi = (struct scsibus_data *)
scsibuscd.cd_devs[bus];
if (scsi->sc_link[target][lun]) {
sc_link = scsi->sc_link[target][lun];
sc_dev = (struct device *)
sc_link->device_softc;
return sc_dev->dv_unit;
}
}
}
return -1;
}
if (bus < 0 || bus >= scsibuscd.cd_ndevs) {
printf("scsi target to unit, bus (%d) out of range.\n", bus);
return -1;
}
if (scsibuscd.cd_devs[bus]) {
scsi = (struct scsibus_data *) scsibuscd.cd_devs[bus];
if (scsi->sc_link[target][lun]) {
sc_link = scsi->sc_link[target][lun];
sc_dev = (struct device *) sc_link->device_softc;
return sc_dev->dv_unit;
}
}
return -1;
}
/* swiped from sparc/sparc/autoconf.c */
@ -288,7 +335,7 @@ findbootdev()
unit = B_UNIT(bootdev);
bootdev &= ~(B_UNITMASK << B_UNITSHIFT);
unit = target_to_unit(unit);
unit = target_to_unit(-1, unit, 0);
bootdev |= (unit << B_UNITSHIFT);
for (dv = alldevs ; dv ; dv = dv->dv_next) {