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st_atapi.c revision 1.8 
      1 /*	$NetBSD: st_atapi.c,v 1.8 2002/04/23 20:41:20 bouyer Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2001 Manuel Bouyer.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Manuel Bouyer.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  *
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 __KERNEL_RCSID(0, "$NetBSD: st_atapi.c,v 1.8 2002/04/23 20:41:20 bouyer Exp $");
     36 
     37 #include "opt_scsi.h"
     38 #include "rnd.h"
     39 
     40 #include <sys/param.h>
     41 #include <sys/device.h>
     42 #include <sys/buf.h>
     43 #include <sys/conf.h>
     44 #include <sys/kernel.h>
     45 #include <sys/systm.h>
     46 
     47 #include <dev/scsipi/stvar.h>
     48 #include <dev/scsipi/atapi_tape.h>
     49 
     50 int	st_atapibus_match __P((struct device *, struct cfdata *, void *));
     51 void	st_atapibus_attach __P((struct device *, struct device *, void *));
     52 int	st_atapibus_ops __P((struct st_softc *, int, int));
     53 int	st_atapibus_mode_sense __P((struct st_softc *, int));
     54 int	st_atapibus_mode_select __P((struct st_softc *, int));
     55 int	st_atapibus_do_ms __P((struct st_softc *, int, void *, int, int));
     56 
     57 struct cfattach st_atapibus_ca = {
     58 	sizeof(struct st_softc), st_atapibus_match, st_atapibus_attach,
     59 	stdetach, stactivate
     60 };
     61 
     62 const struct scsipi_inquiry_pattern st_atapibus_patterns[] = {
     63 	{T_SEQUENTIAL, T_REMOV,
     64 	 "",	 "",		 ""},
     65 };
     66 
     67 int
     68 st_atapibus_match(parent, match, aux)
     69 	struct device *parent;
     70 	struct cfdata *match;
     71 	void *aux;
     72 {
     73 	struct scsipibus_attach_args *sa = aux;
     74 	int priority;
     75 
     76 	if (scsipi_periph_bustype(sa->sa_periph) != SCSIPI_BUSTYPE_ATAPI)
     77 		return (0);
     78 
     79 	(void)scsipi_inqmatch(&sa->sa_inqbuf,
     80 	    (caddr_t)st_atapibus_patterns,
     81 	    sizeof(st_atapibus_patterns)/sizeof(st_atapibus_patterns[0]),
     82 	    sizeof(st_atapibus_patterns[0]), &priority);
     83 	return (priority);
     84 }
     85 
     86 void
     87 st_atapibus_attach(parent, self, aux)
     88 	struct device *parent, *self;
     89 	void *aux;
     90 {
     91 	struct st_softc *st = (void *)self;
     92 	struct scsipibus_attach_args *sa = aux;
     93 	struct scsipi_periph *periph = sa->sa_periph;
     94 
     95 	if (strcmp(sa->sa_inqbuf.vendor, "OnStream DI-30") == 0) {
     96 		struct ast_identifypage identify;
     97 		int error;
     98 
     99 		error = scsipi_mode_sense(periph, SMS_DBD,
    100 		    ATAPI_TAPE_IDENTIFY_PAGE, &identify.header,
    101 		    sizeof(identify), XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK,
    102 		    ST_RETRIES, ST_CTL_TIME);
    103 		if (error) {
    104 			printf("onstream get identify: error %d\n", error);
    105 			return;
    106 		}
    107 		strncpy(identify.ident, "NBSD", 4);
    108 		error = scsipi_mode_select(periph, SMS_PF,
    109 		    &identify.header, sizeof(identify),
    110 		    XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK,
    111 		    ST_RETRIES, ST_CTL_TIME);
    112 		if (error) {
    113 			printf("onstream set identify: error %d\n", error);
    114 			return;
    115 		}
    116 	}
    117 
    118 	st->ops = st_atapibus_ops;
    119 	stattach(parent, st, aux);
    120 }
    121 
    122 int
    123 st_atapibus_ops(st, op, flags)
    124 	struct st_softc *st;
    125 	int op;
    126 	int flags;
    127 {
    128 	switch(op) {
    129 	case ST_OPS_RBL:
    130 		/* done in mode_sense */
    131 		return 0;
    132 	case ST_OPS_MODESENSE:
    133 		return st_atapibus_mode_sense(st, flags);
    134 	case ST_OPS_MODESELECT:
    135 		return st_atapibus_mode_select(st, flags);
    136 	case ST_OPS_CMPRSS_ON:
    137 	case ST_OPS_CMPRSS_OFF:
    138 		return ENODEV;
    139 	default:
    140 		panic("st_scsibus_ops: invalid op");
    141 		/* NOTREACHED */
    142 	}
    143 }
    144 
    145 int
    146 st_atapibus_mode_sense(st, flags)
    147 	struct st_softc *st;
    148 	int flags;
    149 {
    150 	int count, error;
    151 	struct atapi_cappage cappage;
    152 	struct scsipi_periph *periph = st->sc_periph;
    153 
    154 	/* get drive capabilities, some drives needs this repeated */
    155 	for (count = 0 ; count < 5 ; count++) {
    156 		error = scsipi_mode_sense(periph, SMS_DBD,
    157 		    ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage),
    158 		    flags | XS_CTL_DATA_ONSTACK, ST_RETRIES, ST_CTL_TIME);
    159 		if (error == 0) {
    160 			st->numblks = 0; /* unused anyway */
    161 			if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K)
    162 				st->media_blksize = 32768;
    163 			else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K)
    164 				st->media_blksize = 1024;
    165 			else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512)
    166 				st->media_blksize = 512;
    167 			else {
    168 				error = ENODEV;
    169 				continue;
    170 			}
    171 			st->blkmin = st->blkmax = st->media_blksize;
    172 			st->media_density = 0;
    173 			if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT)
    174 				st->flags |= ST_READONLY;
    175 			else
    176 				st->flags &= ~ST_READONLY;
    177 			SC_DEBUG(periph, SCSIPI_DB3,
    178 			    ("density code %d, %d-byte blocks, write-%s, ",
    179 			    st->media_density, st->media_blksize,
    180 			    st->flags & ST_READONLY ? "protected" : "enabled"));
    181 			SC_DEBUG(periph, SCSIPI_DB3,
    182 			    ("%sbuffered\n",
    183 			    cappage.header.dev_spec & SMH_DSP_BUFF_MODE ?
    184 			    "" : "un"));
    185 			periph->periph_flags |= PERIPH_MEDIA_LOADED;
    186 			return 0;
    187 		}
    188 	}
    189 	return error;
    190 }
    191 
    192 int
    193 st_atapibus_mode_select(st, flags)
    194 	struct st_softc *st;
    195 	int flags;
    196 {
    197 	return ENODEV; /* for now ... */
    198 }
    199