1 /* $NetBSD: st_atapi.c,v 1.26 2009/12/06 22:48:17 dyoung 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 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: st_atapi.c,v 1.26 2009/12/06 22:48:17 dyoung Exp $"); 30 31 #include "opt_scsi.h" 32 #include "rnd.h" 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(st_atapibus, sizeof(struct st_softc), 51 st_atapibus_match, st_atapibus_attach, stdetach, NULL); 52 53 static const struct scsipi_inquiry_pattern st_atapibus_patterns[] = { 54 {T_SEQUENTIAL, T_REMOV, 55 "", "", ""}, 56 }; 57 58 static int 59 st_atapibus_match(device_t parent, cfdata_t match, 60 void *aux) 61 { 62 struct scsipibus_attach_args *sa = aux; 63 int priority; 64 65 if (scsipi_periph_bustype(sa->sa_periph) != SCSIPI_BUSTYPE_ATAPI) 66 return (0); 67 68 (void)scsipi_inqmatch(&sa->sa_inqbuf, 69 st_atapibus_patterns, 70 sizeof(st_atapibus_patterns)/sizeof(st_atapibus_patterns[0]), 71 sizeof(st_atapibus_patterns[0]), &priority); 72 return (priority); 73 } 74 75 static void 76 st_atapibus_attach(device_t parent, device_t self, void *aux) 77 { 78 struct st_softc *st = device_private(self); 79 struct scsipibus_attach_args *sa = aux; 80 struct scsipi_periph *periph = sa->sa_periph; 81 82 if (strcmp(sa->sa_inqbuf.vendor, "OnStream DI-30") == 0) { 83 struct ast_identifypage identify; 84 int error; 85 86 error = scsipi_mode_sense(periph, SMS_DBD, 87 ATAPI_TAPE_IDENTIFY_PAGE, &identify.header, 88 sizeof(identify), XS_CTL_DISCOVERY, 89 ST_RETRIES, ST_CTL_TIME); 90 if (error) { 91 printf("onstream get identify: error %d\n", error); 92 return; 93 } 94 strncpy(identify.ident, "NBSD", 4); 95 error = scsipi_mode_select(periph, SMS_PF, 96 &identify.header, sizeof(identify), 97 XS_CTL_DISCOVERY, ST_RETRIES, ST_CTL_TIME); 98 if (error) { 99 printf("onstream set identify: error %d\n", error); 100 return; 101 } 102 } 103 104 st->ops = st_atapibus_ops; 105 stattach(parent, st, aux); 106 } 107 108 static int 109 st_atapibus_ops(struct st_softc *st, int op, int flags) 110 { 111 switch(op) { 112 case ST_OPS_RBL: 113 /* done in mode_sense */ 114 return 0; 115 case ST_OPS_MODESENSE: 116 return st_atapibus_mode_sense(st, flags); 117 case ST_OPS_MODESELECT: 118 return st_mode_select(st, flags); 119 case ST_OPS_CMPRSS_ON: 120 case ST_OPS_CMPRSS_OFF: 121 return ENODEV; 122 default: 123 panic("st_scsibus_ops: invalid op"); 124 /* NOTREACHED */ 125 } 126 } 127 128 static int 129 st_atapibus_mode_sense(struct st_softc *st, int flags) 130 { 131 int count, error; 132 struct atapi_cappage cappage; 133 struct scsipi_periph *periph = st->sc_periph; 134 135 /* get drive capabilities, some drives needs this repeated */ 136 for (count = 0 ; count < 5 ; count++) { 137 error = scsipi_mode_sense(periph, SMS_DBD, 138 ATAPI_TAPE_CAP_PAGE, &cappage.header, sizeof(cappage), 139 flags, ST_RETRIES, ST_CTL_TIME); 140 if (error == 0) { 141 st->numblks = 0; /* unused anyway */ 142 if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK32K) 143 st->media_blksize = 32768; 144 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK1K) 145 st->media_blksize = 1024; 146 else if (cappage.cap4 & ATAPI_TAPE_CAP_PAGE_BLK512) 147 st->media_blksize = 512; 148 else { 149 error = ENODEV; 150 continue; 151 } 152 st->blkmin = st->blkmax = st->media_blksize; 153 st->media_density = 0; 154 if (cappage.header.dev_spec & SMH_DSP_WRITE_PROT) 155 st->flags |= ST_READONLY; 156 else 157 st->flags &= ~ST_READONLY; 158 SC_DEBUG(periph, SCSIPI_DB3, 159 ("density code %d, %d-byte blocks, write-%s, ", 160 st->media_density, st->media_blksize, 161 st->flags & ST_READONLY ? "protected" : "enabled")); 162 SC_DEBUG(periph, SCSIPI_DB3, 163 ("%sbuffered\n", 164 cappage.header.dev_spec & SMH_DSP_BUFF_MODE ? 165 "" : "un")); 166 periph->periph_flags |= PERIPH_MEDIA_LOADED; 167 return 0; 168 } 169 } 170 return error; 171 } 172