1 /* $NetBSD: st_atapi.c,v 1.28 2012/02/28 10:58:11 mbalmer 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 1.28 2012/02/28 10:58:11 mbalmer Exp $"); 29 30 #include "opt_scsi.h" 31 32 #include <sys/param.h> 33 #include <sys/device.h> 34 #include <sys/buf.h> 35 #include <sys/bufq.h> 36 #include <sys/conf.h> 37 #include <sys/kernel.h> 38 #include <sys/systm.h> 39 40 #include <dev/scsipi/stvar.h> 41 #include <dev/scsipi/atapi_tape.h> 42 43 static int st_atapibus_match(device_t, cfdata_t, void *); 44 static void st_atapibus_attach(device_t, device_t, void *); 45 static int st_atapibus_ops(struct st_softc *, int, int); 46 static int st_atapibus_mode_sense(struct st_softc *, int); 47 48 CFATTACH_DECL_NEW( 49 st_atapibus, 50 sizeof(struct st_softc), 51 st_atapibus_match, 52 st_atapibus_attach, 53 stdetach, 54 NULL 55 ); 56 57 static const struct scsipi_inquiry_pattern st_atapibus_patterns[] = { 58 {T_SEQUENTIAL, T_REMOV, 59 "", "", ""}, 60 }; 61 62 static int 63 st_atapibus_match(device_t parent, cfdata_t match, void *aux) 64 { 65 struct scsipibus_attach_args *sa = aux; 66 int priority; 67 68 if (scsipi_periph_bustype(sa->sa_periph) != SCSIPI_BUSTYPE_ATAPI) 69 return 0; 70 71 (void)scsipi_inqmatch(&sa->sa_inqbuf, 72 st_atapibus_patterns, 73 sizeof(st_atapibus_patterns)/sizeof(st_atapibus_patterns[0]), 74 sizeof(st_atapibus_patterns[0]), &priority); 75 return priority; 76 } 77 78 static void 79 st_atapibus_attach(device_t parent, device_t self, void *aux) 80 { 81 struct st_softc *st = device_private(self); 82 struct scsipibus_attach_args *sa = aux; 83 struct scsipi_periph *periph = sa->sa_periph; 84 85 if (strcmp(sa->sa_inqbuf.vendor, "OnStream DI-30") == 0) { 86 struct ast_identifypage identify; 87 int error; 88 89 error = scsipi_mode_sense(periph, SMS_DBD, 90 ATAPI_TAPE_IDENTIFY_PAGE, &identify.header, 91 sizeof(identify), XS_CTL_DISCOVERY, 92 ST_RETRIES, ST_CTL_TIME); 93 if (error) { 94 printf("onstream get identify: error %d\n", error); 95 return; 96 } 97 strncpy(identify.ident, "NBSD", 4); 98 error = scsipi_mode_select(periph, SMS_PF, 99 &identify.header, sizeof(identify), 100 XS_CTL_DISCOVERY, ST_RETRIES, ST_CTL_TIME); 101 if (error) { 102 printf("onstream set identify: error %d\n", error); 103 return; 104 } 105 } 106 107 st->ops = st_atapibus_ops; 108 stattach(parent, self, aux); 109 } 110 111 static int 112 st_atapibus_ops(struct st_softc *st, int op, int flags) 113 { 114 switch(op) { 115 case ST_OPS_RBL: 116 /* done in mode_sense */ 117 return 0; 118 case ST_OPS_MODESENSE: 119 return st_atapibus_mode_sense(st, flags); 120 case ST_OPS_MODESELECT: 121 return st_mode_select(st, flags); 122 case ST_OPS_CMPRSS_ON: 123 case ST_OPS_CMPRSS_OFF: 124 return ENODEV; 125 default: 126 panic("st_scsibus_ops: invalid op"); 127 /* NOTREACHED */ 128 } 129 } 130 131 static int 132 st_atapibus_mode_sense(struct st_softc *st, int flags) 133 { 134 int count, error; 135 struct atapi_cappage cappage; 136 struct scsipi_periph *periph = st->sc_periph; 137 138 /* get drive capabilities, some drives needs this repeated */ 139 for (count = 0 ; count < 5 ; count++) { 140 error = scsipi_mode_sense(periph, SMS_DBD, 141 ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage), 142 flags, ST_RETRIES, ST_CTL_TIME); 143 if (error == 0) { 144 st->numblks = 0; /* unused anyway */ 145 if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K) 146 st->media_blksize = 32768; 147 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K) 148 st->media_blksize = 1024; 149 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512) 150 st->media_blksize = 512; 151 else { 152 error = ENODEV; 153 continue; 154 } 155 st->blkmin = st->blkmax = st->media_blksize; 156 st->media_density = 0; 157 if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT) 158 st->flags |= ST_READONLY; 159 else 160 st->flags &= ~ST_READONLY; 161 SC_DEBUG(periph, SCSIPI_DB3, 162 ("density code %d, %d-byte blocks, write-%s, ", 163 st->media_density, st->media_blksize, 164 st->flags & ST_READONLY ? "protected" : "enabled")); 165 SC_DEBUG(periph, SCSIPI_DB3, 166 ("%sbuffered\n", 167 cappage.header.dev_spec & SMH_DSP_BUFF_MODE ? 168 "" : "un")); 169 periph->periph_flags |= PERIPH_MEDIA_LOADED; 170 return 0; 171 } 172 } 173 return error; 174 } 175