Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
69d33afe72
NetBSD/sys/dev/scsipi/sd_scsi.c
cgd 3b207eaf83 add support for an ATAPI attachment for 'sd'. 
fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!)
clean up in various ways:
* make common atapi_mode_{sense,select}() functions.
* put ATAPI data structures in more sensible headers, split up by
  device type.
* include headers a bit more carefully.
* pass flags to attachment-specific cd functions, and use them.
* get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move
  them into the correct place in scsi_base.c.
* fix minor typo in struct name in scsipiconf.h (which was apparently
  never used except in a #define later in the same file).
* use __attribute__ to force 4-byte alignment for xs command store,
  so that architectures trying to bus_space_write_multi_N() (where
  N > 1) that data to a controller won't lose.
* clean up a few comments in typos, and make a few #defines easier to
  understand/maintain.
* rename cd_link.h to cdvar.h (via repository copy).  This is exactly
  what a 'var' file is supposed to be.
1998-01-15 02:21:27 +00:00

329 lines
10 KiB
C
Raw Blame History

/* $NetBSD: sd_scsi.c,v 1.1 1998/01/15 02:21:40 cgd Exp $ */
/*
* Copyright (c) 1994, 1995, 1997 Charles M. 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 M. 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 (julian@dialix.oz.au)
* 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 (julian@dialix.oz.au) Sept 1992
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/buf.h>
#include <sys/malloc.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/disk.h>
#include <sys/conf.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsipi_disk.h>
#include <dev/scsipi/scsi_disk.h>
#include <dev/scsipi/scsiconf.h>
#include <dev/scsipi/sdvar.h>
#ifdef __BROKEN_INDIRECT_CONFIG
int sd_scsibus_match __P((struct device *, void *, void *));
#else
int sd_scsibus_match __P((struct device *, struct cfdata *, void *));
#endif
void sd_scsibus_attach __P((struct device *, struct device *, void *));
struct cfattach sd_scsibus_ca = {
sizeof(struct sd_softc), sd_scsibus_match, sd_scsibus_attach
};
struct scsipi_inquiry_pattern sd_scsibus_patterns[] = {
{T_DIRECT, T_FIXED,
"", "", ""},
{T_DIRECT, T_REMOV,
"", "", ""},
{T_OPTICAL, T_FIXED,
"", "", ""},
{T_OPTICAL, T_REMOV,
"", "", ""},
};
struct sd_scsibus_mode_sense_data {
struct scsi_mode_header header;
struct scsi_blk_desc blk_desc;
union scsi_disk_pages pages;
};
static int sd_scsibus_mode_sense __P((struct sd_softc *,
struct sd_scsibus_mode_sense_data *, int, int));
static int sd_scsibus_get_parms __P((struct sd_softc *,
struct disk_parms *, int));
static int sd_scsibus_get_optparms __P((struct sd_softc *,
struct disk_parms *, int));
const struct sd_ops sd_scsibus_ops = {
sd_scsibus_get_parms,
};
int
sd_scsibus_match(parent, match, aux)
struct device *parent;
#ifdef __BROKEN_INDIRECT_CONFIG
void *match;
#else
struct cfdata *match;
#endif
void *aux;
{
struct scsipibus_attach_args *sa = aux;
int priority;
if (sa->sa_sc_link->type != BUS_SCSI)
return (0);
(void)scsipi_inqmatch(&sa->sa_inqbuf,
(caddr_t)sd_scsibus_patterns,
sizeof(sd_scsibus_patterns) / sizeof(sd_scsibus_patterns[0]),
sizeof(sd_scsibus_patterns[0]), &priority);
return (priority);
}
/*
* The routine called by the low level scsi routine when it discovers
* a device suitable for this driver.
*/
void
sd_scsibus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct sd_softc *sd = (void *)self;
struct scsipibus_attach_args *sa = aux;
struct scsipi_link *sc_link = sa->sa_sc_link;
SC_DEBUG(sc_link, SDEV_DB2, ("cd_scsibus_attach: "));
sd->type = (sa->sa_inqbuf.type & SID_TYPE);
/*
* Note if this device is ancient. This is used in sdminphys().
*/
if ((sa->scsipi_info.scsi_version & SID_ANSII) == 0)
sd->flags |= SDF_ANCIENT;
sdattach(parent, sd, sc_link, &sd_scsibus_ops);
}
static int
sd_scsibus_mode_sense(sd, scsipi_sense, page, flags)
struct sd_softc *sd;
struct sd_scsibus_mode_sense_data *scsipi_sense;
int page, flags;
{
struct scsi_mode_sense scsipi_cmd;
/*
* Make sure the sense buffer is clean before we do
* the mode sense, so that checks for bogus values of
* 0 will work in case the mode sense fails.
*/
bzero(scsipi_sense, sizeof(*scsipi_sense));
bzero(&scsipi_cmd, sizeof(scsipi_cmd));
scsipi_cmd.opcode = SCSI_MODE_SENSE;
scsipi_cmd.page = page;
scsipi_cmd.length = 0x20;
/*
* If the command worked, use the results to fill out
* the parameter structure
*/
return (scsipi_command(sd->sc_link,
(struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd),
(u_char *)scsipi_sense, sizeof(*scsipi_sense),
SDRETRIES, 6000, NULL, flags | SCSI_DATA_IN | SCSI_SILENT));
}
static int
sd_scsibus_get_optparms(sd, dp, flags)
struct sd_softc *sd;
struct disk_parms *dp;
int flags;
{
struct scsi_mode_sense scsipi_cmd;
struct sd_scsibus_mode_sense_data scsipi_sense;
u_long sectors;
int error;
dp->blksize = 512;
if ((sectors = scsipi_size(sd->sc_link, flags)) == 0)
return (SDGP_RESULT_OFFLINE); /* XXX? */
/* XXX
* It is better to get the following params from the
* mode sense page 6 only (optical device parameter page).
* However, there are stupid optical devices which does NOT
* support the page 6. Ghaa....
*/
bzero(&scsipi_cmd, sizeof(scsipi_cmd));
scsipi_cmd.opcode = SCSI_MODE_SENSE;
scsipi_cmd.page = 0x3f; /* all pages */
scsipi_cmd.length = sizeof(struct scsi_mode_header) +
sizeof(struct scsi_blk_desc);
if ((error = scsipi_command(sd->sc_link,
(struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd),
(u_char *)&scsipi_sense, sizeof(scsipi_sense), SDRETRIES,
6000, NULL, flags | SCSI_DATA_IN)) != 0)
return (SDGP_RESULT_OFFLINE); /* XXX? */
dp->blksize = _3btol(scsipi_sense.blk_desc.blklen);
if (dp->blksize == 0)
dp->blksize = 512;
/*
* Create a pseudo-geometry.
*/
dp->heads = 64;
dp->sectors = 32;
dp->cyls = sectors / (dp->heads * dp->sectors);
dp->disksize = sectors;
return (SDGP_RESULT_OK);
}
/*
* Get the scsi driver to send a full inquiry to the * device and use the
* results to fill out the disk parameter structure.
*/
static int
sd_scsibus_get_parms(sd, dp, flags)
struct sd_softc *sd;
struct disk_parms *dp;
int flags;
{
struct sd_scsibus_mode_sense_data scsipi_sense;
u_long sectors;
int page;
int error;
dp->rot_rate = 3600; /* XXX any way of getting this? */
/*
* If offline, the SDEV_MEDIA_LOADED flag will be
* cleared by the caller if necessary.
*/
if (sd->type == T_OPTICAL)
return (sd_scsibus_get_optparms(sd, dp, flags));
if ((error = sd_scsibus_mode_sense(sd, &scsipi_sense, page = 4,
flags)) == 0) {
SC_DEBUG(sd->sc_link, SDEV_DB3,
("%d cyls, %d heads, %d precomp, %d red_write, %d land_zone\n",
_3btol(scsipi_sense.pages.rigid_geometry.ncyl),
scsipi_sense.pages.rigid_geometry.nheads,
_2btol(scsipi_sense.pages.rigid_geometry.st_cyl_wp),
_2btol(scsipi_sense.pages.rigid_geometry.st_cyl_rwc),
_2btol(scsipi_sense.pages.rigid_geometry.land_zone)));
/*
* KLUDGE!! (for zone recorded disks)
* give a number of sectors so that sec * trks * cyls
* is <= disk_size
* can lead to wasted space! THINK ABOUT THIS !
*/
dp->heads = scsipi_sense.pages.rigid_geometry.nheads;
dp->cyls = _3btol(scsipi_sense.pages.rigid_geometry.ncyl);
dp->blksize = _3btol(scsipi_sense.blk_desc.blklen);
if (dp->heads == 0 || dp->cyls == 0)
goto fake_it;
if (dp->blksize == 0)
dp->blksize = 512;
sectors = scsipi_size(sd->sc_link, flags);
dp->disksize = sectors;
sectors /= (dp->heads * dp->cyls);
dp->sectors = sectors; /* XXX dubious on SCSI */
return (SDGP_RESULT_OK);
}
if ((error = sd_scsibus_mode_sense(sd, &scsipi_sense, page = 5,
flags)) == 0) {
dp->heads = scsipi_sense.pages.flex_geometry.nheads;
dp->cyls = _2btol(scsipi_sense.pages.flex_geometry.ncyl);
dp->blksize = _3btol(scsipi_sense.blk_desc.blklen);
dp->sectors = scsipi_sense.pages.flex_geometry.ph_sec_tr;
dp->disksize = dp->heads * dp->cyls * dp->sectors;
if (dp->disksize == 0)
goto fake_it;
if (dp->blksize == 0)
dp->blksize = 512;
return (SDGP_RESULT_OK);
}
fake_it:
if ((sd->sc_link->quirks & SDEV_NOMODESENSE) == 0) {
if (error == 0)
printf("%s: mode sense (%d) returned nonsense",
sd->sc_dev.dv_xname, page);
else
printf("%s: could not mode sense (4/5)",
sd->sc_dev.dv_xname);
printf("; using fictitious geometry\n");
}
/*
* use adaptec standard fictitious geometry
* this depends on which controller (e.g. 1542C is
* different. but we have to put SOMETHING here..)
*/
sectors = scsipi_size(sd->sc_link, flags);
dp->heads = 64;
dp->sectors = 32;
dp->cyls = sectors / (64 * 32);
dp->blksize = 512;
dp->disksize = sectors;
return (SDGP_RESULT_OK);
}
Reference in New Issue View Git Blame Copy Permalink