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/* $NetBSD: st_atapi.c,v 1.31 2016/07/14 04:00:46 msaitoh Exp $ */
/*
* Copyright (c) 2001 Manuel Bouyer.
*
* 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.
*
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: st_atapi.c,v 1.31 2016/07/14 04:00:46 msaitoh Exp $");
#ifdef _KERNEL_OPT
#include "opt_scsi.h"
#endif
#include <sys/param.h>
#include <sys/device.h>
#include <sys/buf.h>
#include <sys/bufq.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <dev/scsipi/stvar.h>
#include <dev/scsipi/atapi_tape.h>
static int st_atapibus_match(device_t, cfdata_t, void *);
static void st_atapibus_attach(device_t, device_t, void *);
static int st_atapibus_ops(struct st_softc *, int, int);
static int st_atapibus_mode_sense(struct st_softc *, int);
CFATTACH_DECL_NEW(
st_atapibus,
sizeof(struct st_softc),
st_atapibus_match,
st_atapibus_attach,
stdetach,
NULL
);
static const struct scsipi_inquiry_pattern st_atapibus_patterns[] = {
{T_SEQUENTIAL, T_REMOV,
"", "", ""},
};
static int
st_atapibus_match(device_t parent, cfdata_t match, void *aux)
{
struct scsipibus_attach_args *sa = aux;
int priority;
if (SCSIPI_BUSTYPE_TYPE(scsipi_periph_bustype(sa->sa_periph)) !=
SCSIPI_BUSTYPE_ATAPI)
return 0;
(void)scsipi_inqmatch(&sa->sa_inqbuf,
st_atapibus_patterns,
sizeof(st_atapibus_patterns)/sizeof(st_atapibus_patterns[0]),
sizeof(st_atapibus_patterns[0]), &priority);
return priority;
}
static void
st_atapibus_attach(device_t parent, device_t self, void *aux)
{
struct st_softc *st = device_private(self);
struct scsipibus_attach_args *sa = aux;
struct scsipi_periph *periph = sa->sa_periph;
if (strcmp(sa->sa_inqbuf.vendor, "OnStream DI-30") == 0) {
struct ast_identifypage identify;
int error;
error = scsipi_mode_sense(periph, SMS_DBD,
ATAPI_TAPE_IDENTIFY_PAGE, &identify.header,
sizeof(identify), XS_CTL_DISCOVERY,
ST_RETRIES, ST_CTL_TIME);
if (error) {
aprint_error_dev(self,
"onstream get identify: error %d\n", error);
return;
}
strncpy(identify.ident, "NBSD", 4);
error = scsipi_mode_select(periph, SMS_PF,
&identify.header, sizeof(identify),
XS_CTL_DISCOVERY, ST_RETRIES, ST_CTL_TIME);
if (error) {
aprint_error_dev(self,
"onstream set identify: error %d\n", error);
return;
}
}
st->ops = st_atapibus_ops;
stattach(parent, self, aux);
}
static int
st_atapibus_ops(struct st_softc *st, int op, int flags)
{
switch(op) {
case ST_OPS_RBL:
/* done in mode_sense */
return 0;
case ST_OPS_MODESENSE:
return st_atapibus_mode_sense(st, flags);
case ST_OPS_MODESELECT:
return st_mode_select(st, flags);
case ST_OPS_CMPRSS_ON:
case ST_OPS_CMPRSS_OFF:
return ENODEV;
default:
panic("st_scsibus_ops: invalid op");
/* NOTREACHED */
}
}
static int
st_atapibus_mode_sense(struct st_softc *st, int flags)
{
int count, error;
struct atapi_cappage cappage;
struct scsipi_periph *periph = st->sc_periph;
/* get drive capabilities, some drives needs this repeated */
for (count = 0 ; count < 5 ; count++) {
error = scsipi_mode_sense(periph, SMS_DBD,
ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage),
flags, ST_RETRIES, ST_CTL_TIME);
if (error == 0) {
st->numblks = 0; /* unused anyway */
if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K)
st->media_blksize = 32768;
else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K)
st->media_blksize = 1024;
else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512)
st->media_blksize = 512;
else {
error = ENODEV;
continue;
}
st->blkmin = st->blkmax = st->media_blksize;
st->media_density = 0;
if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT)
st->flags |= ST_READONLY;
else
st->flags &= ~ST_READONLY;
SC_DEBUG(periph, SCSIPI_DB3,
("density code %d, %d-byte blocks, write-%s, ",
st->media_density, st->media_blksize,
st->flags & ST_READONLY ? "protected" : "enabled"));
SC_DEBUG(periph, SCSIPI_DB3,
("%sbuffered\n",
cappage.header.dev_spec & SMH_DSP_BUFF_MODE ?
"" : "un"));
periph->periph_flags |= PERIPH_MEDIA_LOADED;
return 0;
}
}
return error;
}
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