| 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 | |