dcea5d31ee
terminating zero and uninitialized dada following -use use the "vendor" field for the name which is used in the default disklabel, the "product" field is meaningless or not existing for ATAPI (serial number)
211 lines
6.4 KiB
C
211 lines
6.4 KiB
C
/* $NetBSD: sd_atapi.c,v 1.14 2002/01/09 18:48:18 drochner Exp $ */
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/*
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* Copyright 1998
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* Digital Equipment Corporation. All rights reserved.
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*
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* This software is furnished under license and may be used and
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* copied only in accordance with the following terms and conditions.
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* Subject to these conditions, you may download, copy, install,
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* use, modify and distribute this software in source and/or binary
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* form. No title or ownership is transferred hereby.
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*
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* 1) Any source code used, modified or distributed must reproduce
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* and retain this copyright notice and list of conditions as
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* they appear in the source file.
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*
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* 2) No right is granted to use any trade name, trademark, or logo of
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* Digital Equipment Corporation. Neither the "Digital Equipment
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* Corporation" name nor any trademark or logo of Digital Equipment
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* Corporation may be used to endorse or promote products derived
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* from this software without the prior written permission of
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* Digital Equipment Corporation.
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*
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* 3) This software is provided "AS-IS" and any express or implied
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* warranties, including but not limited to, any implied warranties
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* of merchantability, fitness for a particular purpose, or
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* non-infringement are disclaimed. In no event shall DIGITAL be
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* liable for any damages whatsoever, and in particular, DIGITAL
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* shall not be liable for special, indirect, consequential, or
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* incidental damages or damages for lost profits, loss of
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* revenue or loss of use, whether such damages arise in contract,
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* negligence, tort, under statute, in equity, at law or otherwise,
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* even if advised of the possibility of such damage.
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*/
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/*
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* ATAPI disk attachment for the 'sd' driver.
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*
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* Chris Demetriou, January 10, 1998.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: sd_atapi.c,v 1.14 2002/01/09 18:48:18 drochner Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/buf.h>
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#include <sys/malloc.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <sys/disk.h>
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#include <sys/conf.h>
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsipi_disk.h>
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#include <dev/scsipi/atapi_disk.h>
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#include <dev/scsipi/atapiconf.h>
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#include <dev/scsipi/sdvar.h>
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int sd_atapibus_match __P((struct device *, struct cfdata *, void *));
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void sd_atapibus_attach __P((struct device *, struct device *, void *));
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struct cfattach sd_atapibus_ca = {
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sizeof(struct sd_softc), sd_atapibus_match, sd_atapibus_attach,
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sddetach, sdactivate,
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};
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struct scsipi_inquiry_pattern sd_atapibus_patterns[] = {
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{T_DIRECT, T_FIXED, /* do these exist? */
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"", "", ""},
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{T_DIRECT, T_REMOV,
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"", "", ""},
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{T_OPTICAL, T_FIXED, /* do these exist? */
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"", "", ""},
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{T_OPTICAL, T_REMOV, /* do these exist? */
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"", "", ""},
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};
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static int sd_atapibus_get_parms __P((struct sd_softc *,
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struct disk_parms *, int));
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const struct sd_ops sd_atapibus_ops = {
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sd_atapibus_get_parms,
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};
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int
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sd_atapibus_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct scsipibus_attach_args *sa = aux;
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int priority;
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if (scsipi_periph_bustype(sa->sa_periph) != SCSIPI_BUSTYPE_ATAPI)
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return (0);
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(void)scsipi_inqmatch(&sa->sa_inqbuf,
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(caddr_t)sd_atapibus_patterns,
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sizeof(sd_atapibus_patterns) / sizeof(sd_atapibus_patterns[0]),
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sizeof(sd_atapibus_patterns[0]), &priority);
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return (priority);
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}
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/*
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* The routine called by the low level scsipi routine when it discovers
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* a device suitable for this driver.
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*/
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void
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sd_atapibus_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct sd_softc *sd = (void *)self;
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struct scsipibus_attach_args *sa = aux;
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struct scsipi_periph *periph = sa->sa_periph;
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SC_DEBUG(periph, SCSIPI_DB2, ("sd_atapi_attach: "));
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sd->type = (sa->sa_inqbuf.type & SID_TYPE);
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strncpy(sd->name, sa->sa_inqbuf.vendor, 16);
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sdattach(parent, sd, periph, &sd_atapibus_ops);
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}
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static int
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sd_atapibus_get_parms(sd, dp, flags)
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struct sd_softc *sd;
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struct disk_parms *dp;
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int flags;
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{
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struct atapi_read_format_capacities scsipi_cmd;
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struct atapi_capacity_descriptor *descp;
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struct atapi_sd_mode_data sense_data;
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char capacity_data[ATAPI_CAP_DESC_SIZE(1)];
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int error;
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memset(&scsipi_cmd, 0, sizeof scsipi_cmd);
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scsipi_cmd.opcode = ATAPI_READ_FORMAT_CAPACITIES;
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_lto2b(ATAPI_CAP_DESC_SIZE(1), scsipi_cmd.length);
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error = scsipi_command(sd->sc_periph,
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(struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd),
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(void *)capacity_data, ATAPI_CAP_DESC_SIZE(1), SDRETRIES, 20000,
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NULL, flags | XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK);
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SC_DEBUG(sd->sc_periph, SCSIPI_DB2,
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("sd_atapibus_get_parms: read format capacities error=%d\n",
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error));
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if (error != 0)
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return (SDGP_RESULT_OFFLINE);
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descp = (struct atapi_capacity_descriptor *)
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&capacity_data[ATAPI_CAP_DESC_OFFSET_DESC(0)];
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switch (descp->byte5 & ATAPI_CAP_DESC_CODE_MASK) {
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case ATAPI_CAP_DESC_CODE_UNFORMATTED:
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return SDGP_RESULT_UNFORMATTED;
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case ATAPI_CAP_DESC_CODE_FORMATTED:
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break;
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case 0:
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if (sd->sc_periph->periph_quirks & PQUIRK_BYTE5_ZERO)
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break;
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default:
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#ifdef DIAGNOSTIC
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printf("%s: strange capacity descriptor byte5 0x%x\n",
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sd->sc_dev.dv_xname, (u_int)descp->byte5);
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#endif
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/* FALLTHROUGH */
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case ATAPI_CAP_DESC_CODE_NONE:
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return SDGP_RESULT_OFFLINE;
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}
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dp->disksize = _4btol(descp->nblks);
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dp->blksize = _3btol(descp->blklen);
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/*
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* First, set up standard fictitious geometry, a la sd_scsi.c.
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*/
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dp->heads = 64;
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dp->sectors = 32;
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dp->cyls = dp->disksize / (64 * 32);
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dp->rot_rate = 3600;
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/*
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* Then try to get something better. If we can't, that's
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* still OK.
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*
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* XXX Rigid geometry page?
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*/
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if (sd->sc_periph->periph_quirks & PQUIRK_NO_FLEX_PAGE)
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return (SDGP_RESULT_OK);
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error = scsipi_mode_sense_big(sd->sc_periph, 0,
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ATAPI_FLEX_GEOMETRY_PAGE, &sense_data.header, FLEXGEOMETRYPAGESIZE,
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flags | XS_CTL_DATA_ONSTACK, SDRETRIES, 20000);
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SC_DEBUG(sd->sc_periph, SCSIPI_DB2,
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("sd_atapibus_get_parms: mode sense (flex) error=%d\n", error));
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if (error != 0)
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return (SDGP_RESULT_OK);
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dp->heads = sense_data.pages.flex_geometry.nheads;
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dp->sectors = sense_data.pages.flex_geometry.ph_sec_tr;
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dp->cyls = _2btol(sense_data.pages.flex_geometry.ncyl);
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dp->rot_rate = _2btol(sense_data.pages.flex_geometry.rot_rate);
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return (SDGP_RESULT_OK);
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}
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