1 /* $NetBSD: st_atapi.c,v 1.20 2006/11/16 01:33:26 christos 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 1.20 2006/11/16 01:33:26 christos 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, 66 void *aux) 67 { 68 struct scsipibus_attach_args *sa = aux; 69 int priority; 70 71 if (scsipi_periph_bustype(sa->sa_periph) != 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(struct device *parent, struct device *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 | XS_CTL_DATA_ONSTACK, 95 ST_RETRIES, ST_CTL_TIME); 96 if (error) { 97 printf("onstream get identify: error %d\n", error); 98 return; 99 } 100 strncpy(identify.ident, "NBSD", 4); 101 error = scsipi_mode_select(periph, SMS_PF, 102 &identify.header, sizeof(identify), 103 XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK, 104 ST_RETRIES, ST_CTL_TIME); 105 if (error) { 106 printf("onstream set identify: error %d\n", error); 107 return; 108 } 109 } 110 111 st->ops = st_atapibus_ops; 112 stattach(parent, st, aux); 113 } 114 115 static int 116 st_atapibus_ops(struct st_softc *st, int op, int flags) 117 { 118 switch(op) { 119 case ST_OPS_RBL: 120 /* done in mode_sense */ 121 return 0; 122 case ST_OPS_MODESENSE: 123 return st_atapibus_mode_sense(st, flags); 124 case ST_OPS_MODESELECT: 125 return st_atapibus_mode_select(st, flags); 126 case ST_OPS_CMPRSS_ON: 127 case ST_OPS_CMPRSS_OFF: 128 return ENODEV; 129 default: 130 panic("st_scsibus_ops: invalid op"); 131 /* NOTREACHED */ 132 } 133 } 134 135 static int 136 st_atapibus_mode_sense(struct st_softc *st, int flags) 137 { 138 int count, error; 139 struct atapi_cappage cappage; 140 struct scsipi_periph *periph = st->sc_periph; 141 142 /* get drive capabilities, some drives needs this repeated */ 143 for (count = 0 ; count < 5 ; count++) { 144 error = scsipi_mode_sense(periph, SMS_DBD, 145 ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage), 146 flags | XS_CTL_DATA_ONSTACK, ST_RETRIES, ST_CTL_TIME); 147 if (error == 0) { 148 st->numblks = 0; /* unused anyway */ 149 if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K) 150 st->media_blksize = 32768; 151 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K) 152 st->media_blksize = 1024; 153 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512) 154 st->media_blksize = 512; 155 else { 156 error = ENODEV; 157 continue; 158 } 159 st->blkmin = st->blkmax = st->media_blksize; 160 st->media_density = 0; 161 if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT) 162 st->flags |= ST_READONLY; 163 else 164 st->flags &= ~ST_READONLY; 165 SC_DEBUG(periph, SCSIPI_DB3, 166 ("density code %d, %d-byte blocks, write-%s, ", 167 st->media_density, st->media_blksize, 168 st->flags & ST_READONLY ? "protected" : "enabled")); 169 SC_DEBUG(periph, SCSIPI_DB3, 170 ("%sbuffered\n", 171 cappage.header.dev_spec & SMH_DSP_BUFF_MODE ? 172 "" : "un")); 173 periph->periph_flags |= PERIPH_MEDIA_LOADED; 174 return 0; 175 } 176 } 177 return error; 178 } 179 180 static int 181 st_atapibus_mode_select(struct st_softc *st, int flags) 182 { 183 return ENODEV; /* for now ... */ 184 } 185