1 /* $NetBSD: st_atapi.c,v 1.13 2004/08/21 22:16:07 thorpej 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 1.13 2004/08/21 22:16:07 thorpej 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/conf.h> 43 #include <sys/kernel.h> 44 #include <sys/systm.h> 45 46 #include <dev/scsipi/stvar.h> 47 #include <dev/scsipi/atapi_tape.h> 48 49 static int st_atapibus_match(struct device *, struct cfdata *, void *); 50 static void st_atapibus_attach(struct device *, struct device *, void *); 51 static int st_atapibus_ops(struct st_softc *, int, int); 52 static int st_atapibus_mode_sense(struct st_softc *, int); 53 static int st_atapibus_mode_select(struct st_softc *, int); 54 55 CFATTACH_DECL(st_atapibus, sizeof(struct st_softc), 56 st_atapibus_match, st_atapibus_attach, stdetach, stactivate); 57 58 static const struct scsipi_inquiry_pattern st_atapibus_patterns[] = { 59 {T_SEQUENTIAL, T_REMOV, 60 "", "", ""}, 61 }; 62 63 static int 64 st_atapibus_match(struct device *parent, struct cfdata *match, void *aux) 65 { 66 struct scsipibus_attach_args *sa = aux; 67 int priority; 68 69 if (scsipi_periph_bustype(sa->sa_periph) != SCSIPI_BUSTYPE_ATAPI) 70 return (0); 71 72 (void)scsipi_inqmatch(&sa->sa_inqbuf, 73 (caddr_t)st_atapibus_patterns, 74 sizeof(st_atapibus_patterns)/sizeof(st_atapibus_patterns[0]), 75 sizeof(st_atapibus_patterns[0]), &priority); 76 return (priority); 77 } 78 79 static void 80 st_atapibus_attach(struct device *parent, struct device *self, void *aux) 81 { 82 struct st_softc *st = (void *)self; 83 struct scsipibus_attach_args *sa = aux; 84 struct scsipi_periph *periph = sa->sa_periph; 85 86 if (strcmp(sa->sa_inqbuf.vendor, "OnStream DI-30") == 0) { 87 struct ast_identifypage identify; 88 int error; 89 90 error = scsipi_mode_sense(periph, SMS_DBD, 91 ATAPI_TAPE_IDENTIFY_PAGE, &identify.header, 92 sizeof(identify), XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK, 93 ST_RETRIES, ST_CTL_TIME); 94 if (error) { 95 printf("onstream get identify: error %d\n", error); 96 return; 97 } 98 strncpy(identify.ident, "NBSD", 4); 99 error = scsipi_mode_select(periph, SMS_PF, 100 &identify.header, sizeof(identify), 101 XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK, 102 ST_RETRIES, ST_CTL_TIME); 103 if (error) { 104 printf("onstream set identify: error %d\n", error); 105 return; 106 } 107 } 108 109 st->ops = st_atapibus_ops; 110 stattach(parent, st, aux); 111 } 112 113 static int 114 st_atapibus_ops(struct st_softc *st, int op, int flags) 115 { 116 switch(op) { 117 case ST_OPS_RBL: 118 /* done in mode_sense */ 119 return 0; 120 case ST_OPS_MODESENSE: 121 return st_atapibus_mode_sense(st, flags); 122 case ST_OPS_MODESELECT: 123 return st_atapibus_mode_select(st, flags); 124 case ST_OPS_CMPRSS_ON: 125 case ST_OPS_CMPRSS_OFF: 126 return ENODEV; 127 default: 128 panic("st_scsibus_ops: invalid op"); 129 /* NOTREACHED */ 130 } 131 } 132 133 static int 134 st_atapibus_mode_sense(struct st_softc *st, int flags) 135 { 136 int count, error; 137 struct atapi_cappage cappage; 138 struct scsipi_periph *periph = st->sc_periph; 139 140 /* get drive capabilities, some drives needs this repeated */ 141 for (count = 0 ; count < 5 ; count++) { 142 error = scsipi_mode_sense(periph, SMS_DBD, 143 ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage), 144 flags | XS_CTL_DATA_ONSTACK, ST_RETRIES, ST_CTL_TIME); 145 if (error == 0) { 146 st->numblks = 0; /* unused anyway */ 147 if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K) 148 st->media_blksize = 32768; 149 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K) 150 st->media_blksize = 1024; 151 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512) 152 st->media_blksize = 512; 153 else { 154 error = ENODEV; 155 continue; 156 } 157 st->blkmin = st->blkmax = st->media_blksize; 158 st->media_density = 0; 159 if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT) 160 st->flags |= ST_READONLY; 161 else 162 st->flags &= ~ST_READONLY; 163 SC_DEBUG(periph, SCSIPI_DB3, 164 ("density code %d, %d-byte blocks, write-%s, ", 165 st->media_density, st->media_blksize, 166 st->flags & ST_READONLY ? "protected" : "enabled")); 167 SC_DEBUG(periph, SCSIPI_DB3, 168 ("%sbuffered\n", 169 cappage.header.dev_spec & SMH_DSP_BUFF_MODE ? 170 "" : "un")); 171 periph->periph_flags |= PERIPH_MEDIA_LOADED; 172 return 0; 173 } 174 } 175 return error; 176 } 177 178 static int 179 st_atapibus_mode_select(struct st_softc *st, int flags) 180 { 181 return ENODEV; /* for now ... */ 182 } 183