st_atapi.c revision 1.3
1 /* $NetBSD: st_atapi.c,v 1.3 2001/06/18 09:41:06 bouyer 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 the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 */ 34 35 36 #include "opt_scsi.h" 37 #include "rnd.h" 38 39 #include <sys/types.h> 40 #include <sys/param.h> 41 #include <sys/device.h> 42 #include <sys/buf.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 int st_atapibus_match __P((struct device *, struct cfdata *, void *)); 51 void st_atapibus_attach __P((struct device *, struct device *, void *)); 52 int st_atapibus_ops __P((struct st_softc *, int, int)); 53 int st_atapibus_mode_sense __P((struct st_softc *, int)); 54 int st_atapibus_mode_select __P((struct st_softc *, int)); 55 int st_atapibus_do_ms __P((struct st_softc *, int, void *, int, int)); 56 57 struct cfattach st_atapibus_ca = { 58 sizeof(struct st_softc), st_atapibus_match, st_atapibus_attach 59 }; 60 61 const struct scsipi_inquiry_pattern st_atapibus_patterns[] = { 62 {T_SEQUENTIAL, T_REMOV, 63 "", "", ""}, 64 }; 65 66 int 67 st_atapibus_match(parent, match, aux) 68 struct device *parent; 69 struct cfdata *match; 70 void *aux; 71 { 72 struct scsipibus_attach_args *sa = aux; 73 int priority; 74 75 if (scsipi_periph_bustype(sa->sa_periph) != SCSIPI_BUSTYPE_ATAPI) 76 return (0); 77 78 (void)scsipi_inqmatch(&sa->sa_inqbuf, 79 (caddr_t)st_atapibus_patterns, 80 sizeof(st_atapibus_patterns)/sizeof(st_atapibus_patterns[0]), 81 sizeof(st_atapibus_patterns[0]), &priority); 82 return (priority); 83 } 84 85 void 86 st_atapibus_attach(parent, self, aux) 87 struct device *parent, *self; 88 void *aux; 89 { 90 struct st_softc *st = (void *)self; 91 92 st->ops = st_atapibus_ops; 93 stattach(parent, st, aux); 94 } 95 96 int 97 st_atapibus_ops(st, op, flags) 98 struct st_softc *st; 99 int op; 100 int flags; 101 { 102 switch(op) { 103 case ST_OPS_RBL: 104 /* done in mode_sense */ 105 return 0; 106 case ST_OPS_MODESENSE: 107 return st_atapibus_mode_sense(st, flags); 108 case ST_OPS_MODESELECT: 109 return st_atapibus_mode_select(st, flags); 110 case ST_OPS_CMPRSS_ON: 111 case ST_OPS_CMPRSS_OFF: 112 return ENODEV; 113 default: 114 panic("st_scsibus_ops: invalid op"); 115 /* NOTREACHED */ 116 } 117 } 118 119 int 120 st_atapibus_mode_sense(st, flags) 121 struct st_softc *st; 122 int flags; 123 { 124 int count, error; 125 struct atapi_cappage cappage; 126 struct scsipi_periph *periph = st->sc_periph; 127 128 /* get drive capabilities, some drives needs this repeated */ 129 for (count = 0 ; count < 5 ; count++) { 130 error = scsipi_mode_sense(periph, SMS_DBD, 131 ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage), 132 flags | XS_CTL_DATA_ONSTACK, ST_RETRIES, ST_CTL_TIME); 133 if (error == 0) { 134 st->numblks = 0; /* unused anyway */ 135 if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K) 136 st->media_blksize = 32768; 137 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K) 138 st->media_blksize = 1024; 139 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512) 140 st->media_blksize = 512; 141 else { 142 error = ENODEV; 143 continue; 144 } 145 st->blkmin = st->blkmax = st->media_blksize; 146 st->media_density = 0; 147 if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT) 148 st->flags |= ST_READONLY; 149 else 150 st->flags &= ~ST_READONLY; 151 SC_DEBUG(periph, SCSIPI_DB3, 152 ("density code %d, %d-byte blocks, write-%s, ", 153 st->media_density, st->media_blksize, 154 st->flags & ST_READONLY ? "protected" : "enabled")); 155 SC_DEBUG(periph, SCSIPI_DB3, 156 ("%sbuffered\n", 157 cappage.header.dev_spec & SMH_DSP_BUFF_MODE ? 158 "" : "un")); 159 periph->periph_flags |= PERIPH_MEDIA_LOADED; 160 return 0; 161 } 162 } 163 return error; 164 } 165 166 int 167 st_atapibus_mode_select(st, flags) 168 struct st_softc *st; 169 int flags; 170 { 171 return ENODEV; /* for now ... */ 172 } 173
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