1 | /* $NetBSD: st_atapi.c,v 1.31 2016/07/14 04:00:46 msaitoh 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 | * |
15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: st_atapi.c,v 1.31 2016/07/14 04:00:46 msaitoh Exp $" ); |
29 | |
30 | #ifdef _KERNEL_OPT |
31 | #include "opt_scsi.h" |
32 | #endif |
33 | |
34 | #include <sys/param.h> |
35 | #include <sys/device.h> |
36 | #include <sys/buf.h> |
37 | #include <sys/bufq.h> |
38 | #include <sys/conf.h> |
39 | #include <sys/kernel.h> |
40 | #include <sys/systm.h> |
41 | |
42 | #include <dev/scsipi/stvar.h> |
43 | #include <dev/scsipi/atapi_tape.h> |
44 | |
45 | static int st_atapibus_match(device_t, cfdata_t, void *); |
46 | static void st_atapibus_attach(device_t, device_t, void *); |
47 | static int st_atapibus_ops(struct st_softc *, int, int); |
48 | static int st_atapibus_mode_sense(struct st_softc *, int); |
49 | |
50 | CFATTACH_DECL_NEW( |
51 | st_atapibus, |
52 | sizeof(struct st_softc), |
53 | st_atapibus_match, |
54 | st_atapibus_attach, |
55 | stdetach, |
56 | NULL |
57 | ); |
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(device_t parent, cfdata_t match, void *aux) |
66 | { |
67 | struct scsipibus_attach_args *sa = aux; |
68 | int priority; |
69 | |
70 | if (SCSIPI_BUSTYPE_TYPE(scsipi_periph_bustype(sa->sa_periph)) != |
71 | SCSIPI_BUSTYPE_ATAPI) |
72 | return 0; |
73 | |
74 | (void)scsipi_inqmatch(&sa->sa_inqbuf, |
75 | st_atapibus_patterns, |
76 | sizeof(st_atapibus_patterns)/sizeof(st_atapibus_patterns[0]), |
77 | sizeof(st_atapibus_patterns[0]), &priority); |
78 | return priority; |
79 | } |
80 | |
81 | static void |
82 | st_atapibus_attach(device_t parent, device_t self, void *aux) |
83 | { |
84 | struct st_softc *st = device_private(self); |
85 | struct scsipibus_attach_args *sa = aux; |
86 | struct scsipi_periph *periph = sa->sa_periph; |
87 | |
88 | if (strcmp(sa->sa_inqbuf.vendor, "OnStream DI-30" ) == 0) { |
89 | struct ast_identifypage identify; |
90 | int error; |
91 | |
92 | error = scsipi_mode_sense(periph, SMS_DBD, |
93 | ATAPI_TAPE_IDENTIFY_PAGE, &identify.header, |
94 | sizeof(identify), XS_CTL_DISCOVERY, |
95 | ST_RETRIES, ST_CTL_TIME); |
96 | if (error) { |
97 | aprint_error_dev(self, |
98 | "onstream get identify: error %d\n" , error); |
99 | return; |
100 | } |
101 | strncpy(identify.ident, "NBSD" , 4); |
102 | error = scsipi_mode_select(periph, SMS_PF, |
103 | &identify.header, sizeof(identify), |
104 | XS_CTL_DISCOVERY, ST_RETRIES, ST_CTL_TIME); |
105 | if (error) { |
106 | aprint_error_dev(self, |
107 | "onstream set identify: error %d\n" , error); |
108 | return; |
109 | } |
110 | } |
111 | |
112 | st->ops = st_atapibus_ops; |
113 | stattach(parent, self, aux); |
114 | } |
115 | |
116 | static int |
117 | st_atapibus_ops(struct st_softc *st, int op, int flags) |
118 | { |
119 | switch(op) { |
120 | case ST_OPS_RBL: |
121 | /* done in mode_sense */ |
122 | return 0; |
123 | case ST_OPS_MODESENSE: |
124 | return st_atapibus_mode_sense(st, flags); |
125 | case ST_OPS_MODESELECT: |
126 | return st_mode_select(st, flags); |
127 | case ST_OPS_CMPRSS_ON: |
128 | case ST_OPS_CMPRSS_OFF: |
129 | return ENODEV; |
130 | default: |
131 | panic("st_scsibus_ops: invalid op" ); |
132 | /* NOTREACHED */ |
133 | } |
134 | } |
135 | |
136 | static int |
137 | st_atapibus_mode_sense(struct st_softc *st, int flags) |
138 | { |
139 | int count, error; |
140 | struct atapi_cappage cappage; |
141 | struct scsipi_periph *periph = st->sc_periph; |
142 | |
143 | /* get drive capabilities, some drives needs this repeated */ |
144 | for (count = 0 ; count < 5 ; count++) { |
145 | error = scsipi_mode_sense(periph, SMS_DBD, |
146 | ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage), |
147 | flags, ST_RETRIES, ST_CTL_TIME); |
148 | if (error == 0) { |
149 | st->numblks = 0; /* unused anyway */ |
150 | if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K) |
151 | st->media_blksize = 32768; |
152 | else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K) |
153 | st->media_blksize = 1024; |
154 | else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512) |
155 | st->media_blksize = 512; |
156 | else { |
157 | error = ENODEV; |
158 | continue; |
159 | } |
160 | st->blkmin = st->blkmax = st->media_blksize; |
161 | st->media_density = 0; |
162 | if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT) |
163 | st->flags |= ST_READONLY; |
164 | else |
165 | st->flags &= ~ST_READONLY; |
166 | SC_DEBUG(periph, SCSIPI_DB3, |
167 | ("density code %d, %d-byte blocks, write-%s, " , |
168 | st->media_density, st->media_blksize, |
169 | st->flags & ST_READONLY ? "protected" : "enabled" )); |
170 | SC_DEBUG(periph, SCSIPI_DB3, |
171 | ("%sbuffered\n" , |
172 | cappage.header.dev_spec & SMH_DSP_BUFF_MODE ? |
173 | "" : "un" )); |
174 | periph->periph_flags |= PERIPH_MEDIA_LOADED; |
175 | return 0; |
176 | } |
177 | } |
178 | return error; |
179 | } |
180 | |