atapi_base.c revision 1.2.2.2
1 1.2.2.2 thorpej /* $NetBSD: atapi_base.c,v 1.2.2.2 1997/08/27 23:32:53 thorpej Exp $ */ 2 1.2.2.2 thorpej 3 1.2.2.2 thorpej /* 4 1.2.2.2 thorpej * Copyright (c) 1994, 1995, 1997 Charles M. Hannum. All rights reserved. 5 1.2.2.2 thorpej * 6 1.2.2.2 thorpej * Redistribution and use in source and binary forms, with or without 7 1.2.2.2 thorpej * modification, are permitted provided that the following conditions 8 1.2.2.2 thorpej * are met: 9 1.2.2.2 thorpej * 1. Redistributions of source code must retain the above copyright 10 1.2.2.2 thorpej * notice, this list of conditions and the following disclaimer. 11 1.2.2.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 12 1.2.2.2 thorpej * notice, this list of conditions and the following disclaimer in the 13 1.2.2.2 thorpej * documentation and/or other materials provided with the distribution. 14 1.2.2.2 thorpej * 3. All advertising materials mentioning features or use of this software 15 1.2.2.2 thorpej * must display the following acknowledgement: 16 1.2.2.2 thorpej * This product includes software developed by Charles M. Hannum. 17 1.2.2.2 thorpej * 4. The name of the author may not be used to endorse or promote products 18 1.2.2.2 thorpej * derived from this software without specific prior written permission. 19 1.2.2.2 thorpej * 20 1.2.2.2 thorpej * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 1.2.2.2 thorpej * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 1.2.2.2 thorpej * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 1.2.2.2 thorpej * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 1.2.2.2 thorpej * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 1.2.2.2 thorpej * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 1.2.2.2 thorpej * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 1.2.2.2 thorpej * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 1.2.2.2 thorpej * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 1.2.2.2 thorpej * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 1.2.2.2 thorpej */ 31 1.2.2.2 thorpej 32 1.2.2.2 thorpej /* 33 1.2.2.2 thorpej * Originally written by Julian Elischer (julian (at) dialix.oz.au) 34 1.2.2.2 thorpej */ 35 1.2.2.2 thorpej 36 1.2.2.2 thorpej #include <sys/types.h> 37 1.2.2.2 thorpej #include <sys/param.h> 38 1.2.2.2 thorpej #include <sys/systm.h> 39 1.2.2.2 thorpej #include <sys/kernel.h> 40 1.2.2.2 thorpej #include <sys/buf.h> 41 1.2.2.2 thorpej #include <sys/uio.h> 42 1.2.2.2 thorpej #include <sys/malloc.h> 43 1.2.2.2 thorpej #include <sys/errno.h> 44 1.2.2.2 thorpej #include <sys/device.h> 45 1.2.2.2 thorpej #include <sys/proc.h> 46 1.2.2.2 thorpej 47 1.2.2.2 thorpej #include <dev/scsipi/scsipi_all.h> 48 1.2.2.2 thorpej #include <dev/scsipi/scsi_all.h> 49 1.2.2.2 thorpej #include <dev/scsipi/scsipi_disk.h> 50 1.2.2.2 thorpej #include <dev/scsipi/atapiconf.h> 51 1.2.2.2 thorpej #include <dev/scsipi/scsipi_base.h> 52 1.2.2.2 thorpej 53 1.2.2.2 thorpej /* 54 1.2.2.2 thorpej * Look at the returned sense and act on the error, determining 55 1.2.2.2 thorpej * the unix error number to pass back. (0 = report no error) 56 1.2.2.2 thorpej * 57 1.2.2.2 thorpej * THIS IS THE DEFAULT ERROR HANDLER 58 1.2.2.2 thorpej */ 59 1.2.2.2 thorpej int 60 1.2.2.2 thorpej atapi_interpret_sense(xs) 61 1.2.2.2 thorpej struct scsipi_xfer *xs; 62 1.2.2.2 thorpej { 63 1.2.2.2 thorpej int key, error; 64 1.2.2.2 thorpej struct scsipi_link *sc_link = xs->sc_link; 65 1.2.2.2 thorpej char *msg = NULL; 66 1.2.2.2 thorpej 67 1.2.2.2 thorpej key = (xs->sense.atapi_sense & 0xf0) >> 4; 68 1.2.2.2 thorpej /* 69 1.2.2.2 thorpej * If the device has it's own error handler, call it first. 70 1.2.2.2 thorpej * If it returns a legit error value, return that, otherwise 71 1.2.2.2 thorpej * it wants us to continue with normal error processing. 72 1.2.2.2 thorpej */ 73 1.2.2.2 thorpej if (sc_link->device->err_handler) { 74 1.2.2.2 thorpej SC_DEBUG(sc_link, SDEV_DB2, 75 1.2.2.2 thorpej ("calling private err_handler()\n")); 76 1.2.2.2 thorpej error = (*sc_link->device->err_handler) (xs); 77 1.2.2.2 thorpej if (error != -1) 78 1.2.2.2 thorpej return error; /* error >= 0 better ? */ 79 1.2.2.2 thorpej } 80 1.2.2.2 thorpej /* otherwise use the default */ 81 1.2.2.2 thorpej switch (key) { 82 1.2.2.2 thorpej case 0x1: /* RECOVERED ERROR */ 83 1.2.2.2 thorpej msg = "soft error (corrected)"; 84 1.2.2.2 thorpej case 0x0: /* NO SENSE */ 85 1.2.2.2 thorpej if (xs->resid == xs->datalen) 86 1.2.2.2 thorpej xs->resid = 0; /* not short read */ 87 1.2.2.2 thorpej error = 0; 88 1.2.2.2 thorpej break; 89 1.2.2.2 thorpej case 0x2: /* NOT READY */ 90 1.2.2.2 thorpej if ((sc_link->flags & SDEV_REMOVABLE) != 0) 91 1.2.2.2 thorpej sc_link->flags &= ~SDEV_MEDIA_LOADED; 92 1.2.2.2 thorpej if ((xs->flags & SCSI_IGNORE_NOT_READY) != 0) 93 1.2.2.2 thorpej return 0; 94 1.2.2.2 thorpej if ((xs->flags & SCSI_SILENT) != 0) 95 1.2.2.2 thorpej return EIO; 96 1.2.2.2 thorpej msg = "not ready"; 97 1.2.2.2 thorpej error = EIO; 98 1.2.2.2 thorpej break; 99 1.2.2.2 thorpej case 0x03: /* MEDIUM ERROR */ 100 1.2.2.2 thorpej msg = "medium error"; 101 1.2.2.2 thorpej error = EIO; 102 1.2.2.2 thorpej break; 103 1.2.2.2 thorpej case 0x04: 104 1.2.2.2 thorpej msg = "non-media hardware failure"; 105 1.2.2.2 thorpej error = EIO; 106 1.2.2.2 thorpej break; 107 1.2.2.2 thorpej case 0x5: /* ILLEGAL REQUEST */ 108 1.2.2.2 thorpej if ((xs->flags & SCSI_IGNORE_ILLEGAL_REQUEST) != 0) 109 1.2.2.2 thorpej return 0; 110 1.2.2.2 thorpej if ((xs->flags & SCSI_SILENT) != 0) 111 1.2.2.2 thorpej return EIO; 112 1.2.2.2 thorpej msg = "illegal request"; 113 1.2.2.2 thorpej error = EINVAL; 114 1.2.2.2 thorpej break; 115 1.2.2.2 thorpej case 0x6: /* UNIT ATTENTION */ 116 1.2.2.2 thorpej if ((sc_link->flags & SDEV_REMOVABLE) != 0) 117 1.2.2.2 thorpej sc_link->flags &= ~SDEV_MEDIA_LOADED; 118 1.2.2.2 thorpej if ((xs->flags & SCSI_IGNORE_MEDIA_CHANGE) != 0 || 119 1.2.2.2 thorpej /* XXX Should reupload any transient state. */ 120 1.2.2.2 thorpej (sc_link->flags & SDEV_REMOVABLE) == 0) 121 1.2.2.2 thorpej return ERESTART; 122 1.2.2.2 thorpej if ((xs->flags & SCSI_SILENT) != 0) 123 1.2.2.2 thorpej return EIO; 124 1.2.2.2 thorpej msg = "unit attention"; 125 1.2.2.2 thorpej error = EIO; 126 1.2.2.2 thorpej break; 127 1.2.2.2 thorpej case 0x7: /* DATA PROTECT */ 128 1.2.2.2 thorpej msg = "readonly device"; 129 1.2.2.2 thorpej error = EACCES; 130 1.2.2.2 thorpej break; 131 1.2.2.2 thorpej case 0xb: /* COMMAND ABORTED */ 132 1.2.2.2 thorpej msg = "command aborted"; 133 1.2.2.2 thorpej error = ERESTART; 134 1.2.2.2 thorpej break; 135 1.2.2.2 thorpej default: 136 1.2.2.2 thorpej error = EIO; 137 1.2.2.2 thorpej break; 138 1.2.2.2 thorpej } 139 1.2.2.2 thorpej 140 1.2.2.2 thorpej if (!key) { 141 1.2.2.2 thorpej if (xs->sense.atapi_sense & 0x01) { 142 1.2.2.2 thorpej /* Illegal length indication */ 143 1.2.2.2 thorpej msg = "ATA illegal length indication"; 144 1.2.2.2 thorpej error = EIO; 145 1.2.2.2 thorpej } 146 1.2.2.2 thorpej if (xs->sense.atapi_sense & 0x02) { /* vol overflow */ 147 1.2.2.2 thorpej msg = "ATA volume overflow"; 148 1.2.2.2 thorpej error = ENOSPC; 149 1.2.2.2 thorpej } 150 1.2.2.2 thorpej if (xs->sense.atapi_sense & 0x04) { /* Aborted command */ 151 1.2.2.2 thorpej msg = "ATA command aborted"; 152 1.2.2.2 thorpej error = ERESTART; 153 1.2.2.2 thorpej } 154 1.2.2.2 thorpej } 155 1.2.2.2 thorpej if (msg) { 156 1.2.2.2 thorpej sc_link->sc_print_addr(sc_link); 157 1.2.2.2 thorpej printf("%s\n", msg); 158 1.2.2.2 thorpej } else { 159 1.2.2.2 thorpej if (error) { 160 1.2.2.2 thorpej sc_link->sc_print_addr(sc_link); 161 1.2.2.2 thorpej printf("unknown error code %d\n", 162 1.2.2.2 thorpej xs->sense.atapi_sense); 163 1.2.2.2 thorpej } 164 1.2.2.2 thorpej } 165 1.2.2.2 thorpej 166 1.2.2.2 thorpej return error; 167 1.2.2.2 thorpej 168 1.2.2.2 thorpej } 169 1.2.2.2 thorpej 170 1.2.2.2 thorpej /* 171 1.2.2.2 thorpej * Utility routines often used in SCSI stuff 172 1.2.2.2 thorpej */ 173 1.2.2.2 thorpej 174 1.2.2.2 thorpej 175 1.2.2.2 thorpej /* 176 1.2.2.2 thorpej * Print out the scsi_link structure's address info. 177 1.2.2.2 thorpej */ 178 1.2.2.2 thorpej void 179 1.2.2.2 thorpej atapi_print_addr(sc_link) 180 1.2.2.2 thorpej struct scsipi_link *sc_link; 181 1.2.2.2 thorpej { 182 1.2.2.2 thorpej 183 1.2.2.2 thorpej printf("%s(%s:%d): ", 184 1.2.2.2 thorpej sc_link->device_softc ? 185 1.2.2.2 thorpej ((struct device *)sc_link->device_softc)->dv_xname : "probe", 186 1.2.2.2 thorpej ((struct device *)sc_link->adapter_softc)->dv_xname, 187 1.2.2.2 thorpej sc_link->scsipi_atapi.drive); 188 1.2.2.2 thorpej } 189 1.2.2.2 thorpej 190 1.2.2.2 thorpej /* 191 1.2.2.2 thorpej * ask the atapi driver to perform a command for us. 192 1.2.2.2 thorpej * tell it where to read/write the data, and how 193 1.2.2.2 thorpej * long the data is supposed to be. If we have a buf 194 1.2.2.2 thorpej * to associate with the transfer, we need that too. 195 1.2.2.2 thorpej */ 196 1.2.2.2 thorpej int 197 1.2.2.2 thorpej atapi_scsipi_cmd(sc_link, scsipi_cmd, cmdlen, data_addr, datalen, 198 1.2.2.2 thorpej retries, timeout, bp, flags) 199 1.2.2.2 thorpej struct scsipi_link *sc_link; 200 1.2.2.2 thorpej struct scsipi_generic *scsipi_cmd; 201 1.2.2.2 thorpej int cmdlen; 202 1.2.2.2 thorpej u_char *data_addr; 203 1.2.2.2 thorpej int datalen; 204 1.2.2.2 thorpej int retries; 205 1.2.2.2 thorpej int timeout; 206 1.2.2.2 thorpej struct buf *bp; 207 1.2.2.2 thorpej int flags; 208 1.2.2.2 thorpej { 209 1.2.2.2 thorpej struct scsipi_xfer *xs; 210 1.2.2.2 thorpej int error; 211 1.2.2.2 thorpej 212 1.2.2.2 thorpej SC_DEBUG(sc_link, SDEV_DB2, ("atapi_cmd\n")); 213 1.2.2.2 thorpej 214 1.2.2.2 thorpej #ifdef DIAGNOSTIC 215 1.2.2.2 thorpej if (bp != 0 && (flags & SCSI_NOSLEEP) == 0) 216 1.2.2.2 thorpej panic("atapi_scsipi_cmd: buffer without nosleep"); 217 1.2.2.2 thorpej #endif 218 1.2.2.2 thorpej 219 1.2.2.2 thorpej if ((xs = scsipi_make_xs(sc_link, scsipi_cmd, cmdlen, data_addr, 220 1.2.2.2 thorpej datalen, retries, timeout, bp, flags)) == NULL) 221 1.2.2.2 thorpej return ENOMEM; 222 1.2.2.2 thorpej 223 1.2.2.2 thorpej xs->cmdlen = (sc_link->scsipi_atapi.cap & ACAP_LEN) ? 16 : 12; 224 1.2.2.2 thorpej 225 1.2.2.2 thorpej if ((error = scsipi_execute_xs(xs)) == EJUSTRETURN) 226 1.2.2.2 thorpej return 0; 227 1.2.2.2 thorpej 228 1.2.2.2 thorpej /* 229 1.2.2.2 thorpej * we have finished with the xfer stuct, free it and 230 1.2.2.2 thorpej * check if anyone else needs to be started up. 231 1.2.2.2 thorpej */ 232 1.2.2.2 thorpej scsipi_free_xs(xs, flags); 233 1.2.2.2 thorpej return error; 234 1.2.2.2 thorpej } 235
Indexes created Fri Sep 26 20:09:58 GMT 2025