/* $NetBSD: sd_atapi.c,v 1.2 1998/08/05 16:29:06 drochner Exp $ */ /* * Copyright 1998 * Digital Equipment Corporation. All rights reserved. * * This software is furnished under license and may be used and * copied only in accordance with the following terms and conditions. * Subject to these conditions, you may download, copy, install, * use, modify and distribute this software in source and/or binary * form. No title or ownership is transferred hereby. * * 1) Any source code used, modified or distributed must reproduce * and retain this copyright notice and list of conditions as * they appear in the source file. * * 2) No right is granted to use any trade name, trademark, or logo of * Digital Equipment Corporation. Neither the "Digital Equipment * Corporation" name nor any trademark or logo of Digital Equipment * Corporation may be used to endorse or promote products derived * from this software without the prior written permission of * Digital Equipment Corporation. * * 3) This software is provided "AS-IS" and any express or implied * warranties, including but not limited to, any implied warranties * of merchantability, fitness for a particular purpose, or * non-infringement are disclaimed. In no event shall DIGITAL be * liable for any damages whatsoever, and in particular, DIGITAL * shall not be liable for special, indirect, consequential, or * incidental damages or damages for lost profits, loss of * revenue or loss of use, whether such damages arise in contract, * negligence, tort, under statute, in equity, at law or otherwise, * even if advised of the possibility of such damage. */ /* * ATAPI disk attachment for the 'sd' driver. * * Chris Demetriou, January 10, 1998. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef __BROKEN_INDIRECT_CONFIG int sd_atapibus_match __P((struct device *, void *, void *)); #else int sd_atapibus_match __P((struct device *, struct cfdata *, void *)); #endif void sd_atapibus_attach __P((struct device *, struct device *, void *)); struct cfattach sd_atapibus_ca = { sizeof(struct sd_softc), sd_atapibus_match, sd_atapibus_attach }; struct scsipi_inquiry_pattern sd_atapibus_patterns[] = { {T_DIRECT, T_FIXED, /* do these exist? */ "", "", ""}, {T_DIRECT, T_REMOV, "", "", ""}, {T_OPTICAL, T_FIXED, /* do these exist? */ "", "", ""}, {T_OPTICAL, T_REMOV, /* do these exist? */ "", "", ""}, }; static int sd_atapibus_get_parms __P((struct sd_softc *, struct disk_parms *, int)); const struct sd_ops sd_atapibus_ops = { sd_atapibus_get_parms, }; int sd_atapibus_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_ATAPI) return (0); (void)scsipi_inqmatch(&sa->sa_inqbuf, (caddr_t)sd_atapibus_patterns, sizeof(sd_atapibus_patterns) / sizeof(sd_atapibus_patterns[0]), sizeof(sd_atapibus_patterns[0]), &priority); return (priority); } /* * The routine called by the low level scsipi routine when it discovers * a device suitable for this driver. */ void sd_atapibus_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, ("sd_atapi_attach: ")); sd->type = (sa->sa_inqbuf.type & SID_TYPE); scsipi_strvis(sd->name, 16, sa->sa_inqbuf.product, 16); sdattach(parent, sd, sc_link, &sd_atapibus_ops); } static int sd_atapibus_get_parms(sd, dp, flags) struct sd_softc *sd; struct disk_parms *dp; int flags; { struct atapi_read_format_capacities scsipi_cmd; struct atapi_capacity_descriptor *descp; struct atapi_sd_mode_data sense_data; char capacity_data[ATAPI_CAP_DESC_SIZE(1)]; int error; bzero(&scsipi_cmd, sizeof scsipi_cmd); scsipi_cmd.opcode = ATAPI_READ_FORMAT_CAPACITIES; _lto2b(ATAPI_CAP_DESC_SIZE(1), scsipi_cmd.length); error = scsipi_command(sd->sc_link, (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), (void *)capacity_data, ATAPI_CAP_DESC_SIZE(1), SDRETRIES, 20000, NULL, flags | SCSI_DATA_IN); SC_DEBUG(sd->sc_link, SDEV_DB2, ("sd_atapibus_get_parms: read format capacities error=%d\n", error)); if (error != 0) return (SDGP_RESULT_OFFLINE); descp = (struct atapi_capacity_descriptor *) &capacity_data[ATAPI_CAP_DESC_OFFSET_DESC(0)]; switch (descp->byte5 & ATAPI_CAP_DESC_CODE_MASK) { case ATAPI_CAP_DESC_CODE_UNFORMATTED: return SDGP_RESULT_UNFORMATTED; case ATAPI_CAP_DESC_CODE_FORMATTED: break; default: #ifdef DIAGNOSTIC printf("%s: strange capacity descriptor byte5 0x%x\n", sd->sc_dev.dv_xname, (u_int)descp->byte5); #endif /* FALLTHROUGH */ case ATAPI_CAP_DESC_CODE_NONE: return SDGP_RESULT_OFFLINE; } dp->disksize = _4btol(descp->nblks); dp->blksize = _3btol(descp->blklen); /* * First, set up standard fictitious geometry, a la sd_scsi.c. */ dp->heads = 64; dp->sectors = 32; dp->cyls = dp->disksize / (64 * 32); dp->rot_rate = 3600; /* * Then try to get something better. If we can't, that's * still OK. * * XXX Rigid geometry page? */ error = atapi_mode_sense(sd->sc_link, ATAPI_FLEX_GEOMETRY_PAGE, (struct atapi_mode_header *)&sense_data, FLEXGEOMETRYPAGESIZE, flags, SDRETRIES, 20000); SC_DEBUG(sd->sc_link, SDEV_DB2, ("sd_atapibus_get_parms: mode sense (flex) error=%d\n", error)); if (error != 0) return (SDGP_RESULT_OK); dp->heads = sense_data.pages.flex_geometry.nheads; dp->sectors = sense_data.pages.flex_geometry.ph_sec_tr; dp->cyls = _2btol(sense_data.pages.flex_geometry.ncyl); dp->rot_rate = _2btol(sense_data.pages.flex_geometry.rot_rate); return (SDGP_RESULT_OK); }