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st_atapi.c revision 1.7 
      1 /*	$NetBSD: st_atapi.c,v 1.7 2001/12/07 11:26:30 yamt 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 the University of
     17  *	California, Berkeley and its contributors.
     18  * 4. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 #include <sys/cdefs.h>
     36 __KERNEL_RCSID(0, "$NetBSD: st_atapi.c,v 1.7 2001/12/07 11:26:30 yamt Exp $");
     37 
     38 #include "opt_scsi.h"
     39 #include "rnd.h"
     40 
     41 #include <sys/param.h>
     42 #include <sys/device.h>
     43 #include <sys/buf.h>
     44 #include <sys/conf.h>
     45 #include <sys/kernel.h>
     46 #include <sys/systm.h>
     47 
     48 #include <dev/scsipi/stvar.h>
     49 #include <dev/scsipi/atapi_tape.h>
     50 
     51 int	st_atapibus_match __P((struct device *, struct cfdata *, void *));
     52 void	st_atapibus_attach __P((struct device *, struct device *, void *));
     53 int	st_atapibus_ops __P((struct st_softc *, int, int));
     54 int	st_atapibus_mode_sense __P((struct st_softc *, int));
     55 int	st_atapibus_mode_select __P((struct st_softc *, int));
     56 int	st_atapibus_do_ms __P((struct st_softc *, int, void *, int, int));
     57 
     58 struct cfattach st_atapibus_ca = {
     59 	sizeof(struct st_softc), st_atapibus_match, st_atapibus_attach,
     60 	stdetach, stactivate
     61 };
     62 
     63 const struct scsipi_inquiry_pattern st_atapibus_patterns[] = {
     64 	{T_SEQUENTIAL, T_REMOV,
     65 	 "",	 "",		 ""},
     66 };
     67 
     68 int
     69 st_atapibus_match(parent, match, aux)
     70 	struct device *parent;
     71 	struct cfdata *match;
     72 	void *aux;
     73 {
     74 	struct scsipibus_attach_args *sa = aux;
     75 	int priority;
     76 
     77 	if (scsipi_periph_bustype(sa->sa_periph) != SCSIPI_BUSTYPE_ATAPI)
     78 		return (0);
     79 
     80 	(void)scsipi_inqmatch(&sa->sa_inqbuf,
     81 	    (caddr_t)st_atapibus_patterns,
     82 	    sizeof(st_atapibus_patterns)/sizeof(st_atapibus_patterns[0]),
     83 	    sizeof(st_atapibus_patterns[0]), &priority);
     84 	return (priority);
     85 }
     86 
     87 void
     88 st_atapibus_attach(parent, self, aux)
     89 	struct device *parent, *self;
     90 	void *aux;
     91 {
     92 	struct st_softc *st = (void *)self;
     93 	struct scsipibus_attach_args *sa = aux;
     94 	struct scsipi_periph *periph = sa->sa_periph;
     95 
     96 	if (strcmp(sa->sa_inqbuf.vendor, "OnStream DI-30") == 0) {
     97 		struct ast_identifypage identify;
     98 		int error;
     99 
    100 		error = scsipi_mode_sense(periph, SMS_DBD,
    101 		    ATAPI_TAPE_IDENTIFY_PAGE, &identify.header,
    102 		    sizeof(identify), XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK,
    103 		    ST_RETRIES, ST_CTL_TIME);
    104 		if (error) {
    105 			printf("onstream get identify: error %d\n", error);
    106 			return;
    107 		}
    108 		strncpy(identify.ident, "NBSD", 4);
    109 		error = scsipi_mode_select(periph, SMS_PF,
    110 		    &identify.header, sizeof(identify),
    111 		    XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK,
    112 		    ST_RETRIES, ST_CTL_TIME);
    113 		if (error) {
    114 			printf("onstream set identify: error %d\n", error);
    115 			return;
    116 		}
    117 	}
    118 
    119 	st->ops = st_atapibus_ops;
    120 	stattach(parent, st, aux);
    121 }
    122 
    123 int
    124 st_atapibus_ops(st, op, flags)
    125 	struct st_softc *st;
    126 	int op;
    127 	int flags;
    128 {
    129 	switch(op) {
    130 	case ST_OPS_RBL:
    131 		/* done in mode_sense */
    132 		return 0;
    133 	case ST_OPS_MODESENSE:
    134 		return st_atapibus_mode_sense(st, flags);
    135 	case ST_OPS_MODESELECT:
    136 		return st_atapibus_mode_select(st, flags);
    137 	case ST_OPS_CMPRSS_ON:
    138 	case ST_OPS_CMPRSS_OFF:
    139 		return ENODEV;
    140 	default:
    141 		panic("st_scsibus_ops: invalid op");
    142 		/* NOTREACHED */
    143 	}
    144 }
    145 
    146 int
    147 st_atapibus_mode_sense(st, flags)
    148 	struct st_softc *st;
    149 	int flags;
    150 {
    151 	int count, error;
    152 	struct atapi_cappage cappage;
    153 	struct scsipi_periph *periph = st->sc_periph;
    154 
    155 	/* get drive capabilities, some drives needs this repeated */
    156 	for (count = 0 ; count < 5 ; count++) {
    157 		error = scsipi_mode_sense(periph, SMS_DBD,
    158 		    ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage),
    159 		    flags | XS_CTL_DATA_ONSTACK, ST_RETRIES, ST_CTL_TIME);
    160 		if (error == 0) {
    161 			st->numblks = 0; /* unused anyway */
    162 			if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K)
    163 				st->media_blksize = 32768;
    164 			else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K)
    165 				st->media_blksize = 1024;
    166 			else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512)
    167 				st->media_blksize = 512;
    168 			else {
    169 				error = ENODEV;
    170 				continue;
    171 			}
    172 			st->blkmin = st->blkmax = st->media_blksize;
    173 			st->media_density = 0;
    174 			if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT)
    175 				st->flags |= ST_READONLY;
    176 			else
    177 				st->flags &= ~ST_READONLY;
    178 			SC_DEBUG(periph, SCSIPI_DB3,
    179 			    ("density code %d, %d-byte blocks, write-%s, ",
    180 			    st->media_density, st->media_blksize,
    181 			    st->flags & ST_READONLY ? "protected" : "enabled"));
    182 			SC_DEBUG(periph, SCSIPI_DB3,
    183 			    ("%sbuffered\n",
    184 			    cappage.header.dev_spec & SMH_DSP_BUFF_MODE ?
    185 			    "" : "un"));
    186 			periph->periph_flags |= PERIPH_MEDIA_LOADED;
    187 			return 0;
    188 		}
    189 	}
    190 	return error;
    191 }
    192 
    193 int
    194 st_atapibus_mode_select(st, flags)
    195 	struct st_softc *st;
    196 	int flags;
    197 {
    198 	return ENODEV; /* for now ... */
    199 }
    200