1 /* $NetBSD: st_atapi.c,v 1.15 2005/02/27 00:27:48 perry 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. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: st_atapi.c,v 1.15 2005/02/27 00:27:48 perry Exp $");
35
36 #include "opt_scsi.h"
37 #include "rnd.h"
38
39 #include <sys/param.h>
40 #include <sys/device.h>
41 #include <sys/buf.h>
42 #include <sys/bufq.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 static int st_atapibus_match(struct device *, struct cfdata *, void *);
51 static void st_atapibus_attach(struct device *, struct device *, void *);
52 static int st_atapibus_ops(struct st_softc *, int, int);
53 static int st_atapibus_mode_sense(struct st_softc *, int);
54 static int st_atapibus_mode_select(struct st_softc *, int);
55
56 CFATTACH_DECL(st_atapibus, sizeof(struct st_softc),
57 st_atapibus_match, st_atapibus_attach, stdetach, stactivate);
58
59 static const struct scsipi_inquiry_pattern st_atapibus_patterns[] = {
60 {T_SEQUENTIAL, T_REMOV,
61 "", "", ""},
62 };
63
64 static int
65 st_atapibus_match(struct device *parent, struct cfdata *match, void *aux)
66 {
67 struct scsipibus_attach_args *sa = aux;
68 int priority;
69
70 if (scsipi_periph_bustype(sa->sa_periph) != SCSIPI_BUSTYPE_ATAPI)
71 return (0);
72
73 (void)scsipi_inqmatch(&sa->sa_inqbuf,
74 (caddr_t)st_atapibus_patterns,
75 sizeof(st_atapibus_patterns)/sizeof(st_atapibus_patterns[0]),
76 sizeof(st_atapibus_patterns[0]), &priority);
77 return (priority);
78 }
79
80 static void
81 st_atapibus_attach(struct device *parent, struct device *self, void *aux)
82 {
83 struct st_softc *st = (void *)self;
84 struct scsipibus_attach_args *sa = aux;
85 struct scsipi_periph *periph = sa->sa_periph;
86
87 if (strcmp(sa->sa_inqbuf.vendor, "OnStream DI-30") == 0) {
88 struct ast_identifypage identify;
89 int error;
90
91 error = scsipi_mode_sense(periph, SMS_DBD,
92 ATAPI_TAPE_IDENTIFY_PAGE, &identify.header,
93 sizeof(identify), XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK,
94 ST_RETRIES, ST_CTL_TIME);
95 if (error) {
96 printf("onstream get identify: error %d\n", error);
97 return;
98 }
99 strncpy(identify.ident, "NBSD", 4);
100 error = scsipi_mode_select(periph, SMS_PF,
101 &identify.header, sizeof(identify),
102 XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK,
103 ST_RETRIES, ST_CTL_TIME);
104 if (error) {
105 printf("onstream set identify: error %d\n", error);
106 return;
107 }
108 }
109
110 st->ops = st_atapibus_ops;
111 stattach(parent, st, aux);
112 }
113
114 static int
115 st_atapibus_ops(struct st_softc *st, int op, int flags)
116 {
117 switch(op) {
118 case ST_OPS_RBL:
119 /* done in mode_sense */
120 return 0;
121 case ST_OPS_MODESENSE:
122 return st_atapibus_mode_sense(st, flags);
123 case ST_OPS_MODESELECT:
124 return st_atapibus_mode_select(st, flags);
125 case ST_OPS_CMPRSS_ON:
126 case ST_OPS_CMPRSS_OFF:
127 return ENODEV;
128 default:
129 panic("st_scsibus_ops: invalid op");
130 /* NOTREACHED */
131 }
132 }
133
134 static int
135 st_atapibus_mode_sense(struct st_softc *st, int flags)
136 {
137 int count, error;
138 struct atapi_cappage cappage;
139 struct scsipi_periph *periph = st->sc_periph;
140
141 /* get drive capabilities, some drives needs this repeated */
142 for (count = 0 ; count < 5 ; count++) {
143 error = scsipi_mode_sense(periph, SMS_DBD,
144 ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage),
145 flags | XS_CTL_DATA_ONSTACK, ST_RETRIES, ST_CTL_TIME);
146 if (error == 0) {
147 st->numblks = 0; /* unused anyway */
148 if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K)
149 st->media_blksize = 32768;
150 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K)
151 st->media_blksize = 1024;
152 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512)
153 st->media_blksize = 512;
154 else {
155 error = ENODEV;
156 continue;
157 }
158 st->blkmin = st->blkmax = st->media_blksize;
159 st->media_density = 0;
160 if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT)
161 st->flags |= ST_READONLY;
162 else
163 st->flags &= ~ST_READONLY;
164 SC_DEBUG(periph, SCSIPI_DB3,
165 ("density code %d, %d-byte blocks, write-%s, ",
166 st->media_density, st->media_blksize,
167 st->flags & ST_READONLY ? "protected" : "enabled"));
168 SC_DEBUG(periph, SCSIPI_DB3,
169 ("%sbuffered\n",
170 cappage.header.dev_spec & SMH_DSP_BUFF_MODE ?
171 "" : "un"));
172 periph->periph_flags |= PERIPH_MEDIA_LOADED;
173 return 0;
174 }
175 }
176 return error;
177 }
178
179 static int
180 st_atapibus_mode_select(struct st_softc *st, int flags)
181 {
182 return ENODEV; /* for now ... */
183 }
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