/* $NetBSD: atapi_base.c,v 1.14 1999/09/30 22:57:52 thorpej Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * Look at the returned sense and act on the error, determining * the unix error number to pass back. (0 = report no error) * * THIS IS THE DEFAULT ERROR HANDLER */ int atapi_interpret_sense(xs) struct scsipi_xfer *xs; { int key, error; struct scsipi_link *sc_link = xs->sc_link; char *msg = NULL; /* * If the device has it's own error handler, call it first. * If it returns a legit error value, return that, otherwise * it wants us to continue with normal error processing. */ if (sc_link->device->err_handler) { SC_DEBUG(sc_link, SDEV_DB2, ("calling private err_handler()\n")); error = (*sc_link->device->err_handler) (xs); if (error != SCSIRET_CONTINUE) return (error); /* error >= 0 better ? */ } /* * otherwise use the default, call the generic sense handler if we have * more than the sense key */ if (xs->error == XS_SENSE) return (scsipi_interpret_sense(xs)); key = (xs->sense.atapi_sense & 0xf0) >> 4; switch (key) { case SKEY_RECOVERED_ERROR: msg = "soft error (corrected)"; case SKEY_NO_SENSE: if (xs->resid == xs->datalen) xs->resid = 0; /* not short read */ error = 0; break; case SKEY_NOT_READY: if ((sc_link->flags & SDEV_REMOVABLE) != 0) sc_link->flags &= ~SDEV_MEDIA_LOADED; if ((xs->xs_control & XS_CTL_IGNORE_NOT_READY) != 0) return (0); if ((xs->xs_control & XS_CTL_SILENT) != 0) return (EIO); msg = "not ready"; error = EIO; break; case SKEY_MEDIUM_ERROR: /* MEDIUM ERROR */ msg = "medium error"; error = EIO; break; case SKEY_HARDWARE_ERROR: msg = "non-media hardware failure"; error = EIO; break; case SKEY_ILLEGAL_REQUEST: if ((xs->xs_control & XS_CTL_IGNORE_ILLEGAL_REQUEST) != 0) return (0); if ((xs->xs_control & XS_CTL_SILENT) != 0) return (EIO); msg = "illegal request"; error = EINVAL; break; case SKEY_UNIT_ATTENTION: if ((sc_link->flags & SDEV_REMOVABLE) != 0) sc_link->flags &= ~SDEV_MEDIA_LOADED; if ((xs->xs_control & XS_CTL_IGNORE_MEDIA_CHANGE) != 0 || /* XXX Should reupload any transient state. */ (sc_link->flags & SDEV_REMOVABLE) == 0) return (ERESTART); if ((xs->xs_control & XS_CTL_SILENT) != 0) return (EIO); msg = "unit attention"; error = EIO; break; case SKEY_WRITE_PROTECT: msg = "readonly device"; error = EROFS; break; case SKEY_ABORTED_COMMAND: msg = "command aborted"; error = ERESTART; break; default: error = EIO; break; } if (!key) { if (xs->sense.atapi_sense & 0x01) { /* Illegal length indication */ msg = "ATA illegal length indication"; error = EIO; } if (xs->sense.atapi_sense & 0x02) { /* vol overflow */ msg = "ATA volume overflow"; error = ENOSPC; } if (xs->sense.atapi_sense & 0x04) { /* Aborted command */ msg = "ATA command aborted"; error = ERESTART; } } if (msg) { sc_link->sc_print_addr(sc_link); printf("%s\n", msg); } else { if (error) { sc_link->sc_print_addr(sc_link); printf("unknown error code %d\n", xs->sense.atapi_sense); } } return (error); } /* * Utility routines often used in SCSI stuff */ /* * Print out the scsi_link structure's address info. */ void atapi_print_addr(sc_link) struct scsipi_link *sc_link; { printf("%s(%s:%d:%d): ", sc_link->device_softc ? ((struct device *)sc_link->device_softc)->dv_xname : "probe", ((struct device *)sc_link->adapter_softc)->dv_xname, sc_link->scsipi_atapi.channel, sc_link->scsipi_atapi.drive); } /* * ask the atapi driver to perform a command for us. * tell it where to read/write the data, and how * long the data is supposed to be. If we have a buf * to associate with the transfer, we need that too. */ int atapi_scsipi_cmd(sc_link, scsipi_cmd, cmdlen, data_addr, datalen, retries, timeout, bp, flags) struct scsipi_link *sc_link; struct scsipi_generic *scsipi_cmd; int cmdlen; u_char *data_addr; int datalen; int retries; int timeout; struct buf *bp; int flags; { struct scsipi_xfer *xs; int error, s; SC_DEBUG(sc_link, SDEV_DB2, ("atapi_cmd\n")); #ifdef DIAGNOSTIC if (bp != NULL && (flags & XS_CTL_ASYNC) == 0) panic("atapi_scsipi_cmd: buffer without async"); #endif if ((xs = scsipi_make_xs(sc_link, scsipi_cmd, cmdlen, data_addr, datalen, retries, timeout, bp, flags)) == NULL) { if (bp != NULL) { s = splbio(); bp->b_flags |= B_ERROR; bp->b_error = ENOMEM; biodone(bp); splx(s); } return (ENOMEM); } xs->cmdlen = (sc_link->scsipi_atapi.cap & ACAP_LEN) ? 16 : 12; if ((error = scsipi_execute_xs(xs)) == EJUSTRETURN) return (0); /* * we have finished with the xfer stuct, free it and * check if anyone else needs to be started up. */ s = splbio(); scsipi_free_xs(xs, flags); splx(s); return (error); } int atapi_mode_select(l, data, len, flags, retries, timeout) struct scsipi_link *l; struct atapi_mode_header *data; int len, flags, retries, timeout; { struct atapi_mode_select scsipi_cmd; int error; bzero(&scsipi_cmd, sizeof(scsipi_cmd)); scsipi_cmd.opcode = ATAPI_MODE_SELECT; scsipi_cmd.byte2 = AMS_PF; _lto2b(len, scsipi_cmd.length); /* length is reserved when doing mode select; zero it */ _lto2l(0, data->length); error = scsipi_command(l, (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), (void *)data, len, retries, timeout, NULL, flags | XS_CTL_DATA_OUT); SC_DEBUG(l, SDEV_DB2, ("atapi_mode_select: error=%d\n", error)); return (error); } int atapi_mode_sense(l, page, data, len, flags, retries, timeout) struct scsipi_link *l; int page, len, flags, retries, timeout; struct atapi_mode_header *data; { struct atapi_mode_sense scsipi_cmd; int error; bzero(&scsipi_cmd, sizeof(scsipi_cmd)); scsipi_cmd.opcode = ATAPI_MODE_SENSE; scsipi_cmd.page = page; _lto2b(len, scsipi_cmd.length); error = scsipi_command(l, (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), (void *)data, len, retries, timeout, NULL, flags | XS_CTL_DATA_IN); SC_DEBUG(l, SDEV_DB2, ("atapi_mode_sense: error=%d\n", error)); return (error); }