/* $NetBSD: cd.c,v 1.223 2005/05/29 22:00:50 christos Exp $ */ /*- * Copyright (c) 1998, 2001, 2003, 2004 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. */ /* * Originally written by Julian Elischer (julian@tfs.com) * for TRW Financial Systems for use under the MACH(2.5) operating system. * * TRW Financial Systems, in accordance with their agreement with Carnegie * Mellon University, makes this software available to CMU to distribute * or use in any manner that they see fit as long as this message is kept with * the software. For this reason TFS also grants any other persons or * organisations permission to use or modify this software. * * TFS supplies this software to be publicly redistributed * on the understanding that TFS is not responsible for the correct * functioning of this software in any circumstances. * * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 */ #include __KERNEL_RCSID(0, "$NetBSD: cd.c,v 1.223 2005/05/29 22:00:50 christos Exp $"); #include "rnd.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if NRND > 0 #include #endif #include #include #include #include /* rw_big and start_stop come */ #include /* from there */ #include /* rw comes from there */ #include #include #include #define CDUNIT(z) DISKUNIT(z) #define CDPART(z) DISKPART(z) #define CDMINOR(unit, part) DISKMINOR(unit, part) #define MAKECDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) #define MAXTRACK 99 #define CD_BLOCK_OFFSET 150 #define CD_FRAMES 75 #define CD_SECS 60 struct cd_toc { struct ioc_toc_header header; struct cd_toc_entry entries[MAXTRACK+1]; /* One extra for the */ /* leadout */ }; static void cdstart(struct scsipi_periph *); static void cdrestart(void *); static void cdminphys(struct buf *); static void cdgetdefaultlabel(struct cd_softc *, struct disklabel *); static void cdgetdisklabel(struct cd_softc *); static void cddone(struct scsipi_xfer *, int); static void cdbounce(struct buf *); static int cd_interpret_sense(struct scsipi_xfer *); static u_long cd_size(struct cd_softc *, int); static int cd_play(struct cd_softc *, int, int); static int cd_play_tracks(struct cd_softc *, int, int, int, int); static int cd_play_msf(struct cd_softc *, int, int, int, int, int, int); static int cd_pause(struct cd_softc *, int); static int cd_reset(struct cd_softc *); static int cd_read_subchannel(struct cd_softc *, int, int, int, struct cd_sub_channel_info *, int, int); static int cd_read_toc_f0(struct cd_softc *, int, int, void *, int, int, int); static int cd_get_parms(struct cd_softc *, int); static int cd_load_toc(struct cd_softc *, struct cd_toc *, int); static int cdreadmsaddr(struct cd_softc *, int *); static int dvd_auth(struct cd_softc *, dvd_authinfo *); static int dvd_read_physical(struct cd_softc *, dvd_struct *); static int dvd_read_copyright(struct cd_softc *, dvd_struct *); static int dvd_read_disckey(struct cd_softc *, dvd_struct *); static int dvd_read_bca(struct cd_softc *, dvd_struct *); static int dvd_read_manufact(struct cd_softc *, dvd_struct *); static int dvd_read_struct(struct cd_softc *, dvd_struct *); static int cd_mode_sense(struct cd_softc *, u_int8_t, void *, size_t, int, int, int *); static int cd_mode_select(struct cd_softc *, u_int8_t, void *, size_t, int, int); static int cd_setchan(struct cd_softc *, int, int, int, int, int); static int cd_getvol(struct cd_softc *, struct ioc_vol *, int); static int cd_setvol(struct cd_softc *, const struct ioc_vol *, int); static int cd_set_pa_immed(struct cd_softc *, int); static int cd_load_unload(struct cd_softc *, struct ioc_load_unload *); static int cd_setblksize(struct cd_softc *); static int cdmatch(struct device *, struct cfdata *, void *); static void cdattach(struct device *, struct device *, void *); static int cdactivate(struct device *, enum devact); static int cddetach(struct device *, int); CFATTACH_DECL(cd, sizeof(struct cd_softc), cdmatch, cdattach, cddetach, cdactivate); extern struct cfdriver cd_cd; static const struct scsipi_inquiry_pattern cd_patterns[] = { {T_CDROM, T_REMOV, "", "", ""}, {T_WORM, T_REMOV, "", "", ""}, #if 0 {T_CDROM, T_REMOV, /* more luns */ "PIONEER ", "CD-ROM DRM-600 ", ""}, #endif {T_DIRECT, T_REMOV, "NEC CD-ROM DRIVE:260", "", ""}, }; static dev_type_open(cdopen); static dev_type_close(cdclose); static dev_type_read(cdread); static dev_type_write(cdwrite); static dev_type_ioctl(cdioctl); static dev_type_strategy(cdstrategy); static dev_type_dump(cddump); static dev_type_size(cdsize); const struct bdevsw cd_bdevsw = { cdopen, cdclose, cdstrategy, cdioctl, cddump, cdsize, D_DISK }; const struct cdevsw cd_cdevsw = { cdopen, cdclose, cdread, cdwrite, cdioctl, nostop, notty, nopoll, nommap, nokqfilter, D_DISK }; static struct dkdriver cddkdriver = { cdstrategy }; static const struct scsipi_periphsw cd_switch = { cd_interpret_sense, /* use our error handler first */ cdstart, /* we have a queue, which is started by this */ NULL, /* we do not have an async handler */ cddone, /* deal with stats at interrupt time */ }; /* * The routine called by the low level scsi routine when it discovers * A device suitable for this driver */ static int cdmatch(struct device *parent, struct cfdata *match, void *aux) { struct scsipibus_attach_args *sa = aux; int priority; (void)scsipi_inqmatch(&sa->sa_inqbuf, cd_patterns, sizeof(cd_patterns) / sizeof(cd_patterns[0]), sizeof(cd_patterns[0]), &priority); return (priority); } static void cdattach(struct device *parent, struct device *self, void *aux) { struct cd_softc *cd = (void *)self; struct scsipibus_attach_args *sa = aux; struct scsipi_periph *periph = sa->sa_periph; SC_DEBUG(periph, SCSIPI_DB2, ("cdattach: ")); lockinit(&cd->sc_lock, PRIBIO | PCATCH, "cdlock", 0, 0); if (scsipi_periph_bustype(sa->sa_periph) == SCSIPI_BUSTYPE_SCSI && periph->periph_version == 0) cd->flags |= CDF_ANCIENT; bufq_alloc(&cd->buf_queue, BUFQ_DISKSORT|BUFQ_SORT_RAWBLOCK); callout_init(&cd->sc_callout); /* * Store information needed to contact our base driver */ cd->sc_periph = periph; periph->periph_dev = &cd->sc_dev; periph->periph_switch = &cd_switch; /* * Increase our openings to the maximum-per-periph * supported by the adapter. This will either be * clamped down or grown by the adapter if necessary. */ periph->periph_openings = SCSIPI_CHAN_MAX_PERIPH(periph->periph_channel); periph->periph_flags |= PERIPH_GROW_OPENINGS; /* * Initialize and attach the disk structure. */ cd->sc_dk.dk_driver = &cddkdriver; cd->sc_dk.dk_name = cd->sc_dev.dv_xname; disk_attach(&cd->sc_dk); printf("\n"); #if NRND > 0 rnd_attach_source(&cd->rnd_source, cd->sc_dev.dv_xname, RND_TYPE_DISK, 0); #endif } static int cdactivate(struct device *self, enum devact act) { int rv = 0; switch (act) { case DVACT_ACTIVATE: rv = EOPNOTSUPP; break; case DVACT_DEACTIVATE: /* * Nothing to do; we key off the device's DVF_ACTIVE. */ break; } return (rv); } static int cddetach(struct device *self, int flags) { struct cd_softc *cd = (struct cd_softc *) self; int s, bmaj, cmaj, i, mn; /* locate the major number */ bmaj = bdevsw_lookup_major(&cd_bdevsw); cmaj = cdevsw_lookup_major(&cd_cdevsw); /* Nuke the vnodes for any open instances */ for (i = 0; i < MAXPARTITIONS; i++) { mn = CDMINOR(self->dv_unit, i); vdevgone(bmaj, mn, mn, VBLK); vdevgone(cmaj, mn, mn, VCHR); } /* kill any pending restart */ callout_stop(&cd->sc_callout); s = splbio(); /* Kill off any queued buffers. */ bufq_drain(&cd->buf_queue); bufq_free(&cd->buf_queue); /* Kill off any pending commands. */ scsipi_kill_pending(cd->sc_periph); splx(s); lockmgr(&cd->sc_lock, LK_DRAIN, 0); /* Detach from the disk list. */ disk_detach(&cd->sc_dk); #if 0 /* Get rid of the shutdown hook. */ if (cd->sc_sdhook != NULL) shutdownhook_disestablish(cd->sc_sdhook); #endif #if NRND > 0 /* Unhook the entropy source. */ rnd_detach_source(&cd->rnd_source); #endif return (0); } /* * open the device. Make sure the partition info is a up-to-date as can be. */ static int cdopen(dev_t dev, int flag, int fmt, struct proc *p) { struct cd_softc *cd; struct scsipi_periph *periph; struct scsipi_adapter *adapt; int unit, part; int error; unit = CDUNIT(dev); if (unit >= cd_cd.cd_ndevs) return (ENXIO); cd = cd_cd.cd_devs[unit]; if (cd == NULL) return (ENXIO); periph = cd->sc_periph; adapt = periph->periph_channel->chan_adapter; part = CDPART(dev); SC_DEBUG(periph, SCSIPI_DB1, ("cdopen: dev=0x%x (unit %d (of %d), partition %d)\n", dev, unit, cd_cd.cd_ndevs, CDPART(dev))); /* * If this is the first open of this device, add a reference * to the adapter. */ if (cd->sc_dk.dk_openmask == 0 && (error = scsipi_adapter_addref(adapt)) != 0) return (error); if ((error = lockmgr(&cd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) goto bad4; if ((periph->periph_flags & PERIPH_OPEN) != 0) { /* * If any partition is open, but the disk has been invalidated, * disallow further opens. */ if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0 && (part != RAW_PART || fmt != S_IFCHR )) { error = EIO; goto bad3; } } else { int silent; if (part == RAW_PART && fmt == S_IFCHR) silent = XS_CTL_SILENT; else silent = 0; /* Check that it is still responding and ok. */ error = scsipi_test_unit_ready(periph, XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | silent); /* * Start the pack spinning if necessary. Always allow the * raw parition to be opened, for raw IOCTLs. Data transfers * will check for SDEV_MEDIA_LOADED. */ if (error == EIO) { int error2; error2 = scsipi_start(periph, SSS_START, silent); switch (error2) { case 0: error = 0; break; case EIO: case EINVAL: break; default: error = error2; break; } } if (error) { if (silent) goto out; goto bad3; } periph->periph_flags |= PERIPH_OPEN; /* Lock the pack in. */ error = scsipi_prevent(periph, SPAMR_PREVENT_DT, XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE); SC_DEBUG(periph, SCSIPI_DB1, ("cdopen: scsipi_prevent, error=%d\n", error)); if (error) goto bad; if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { periph->periph_flags |= PERIPH_MEDIA_LOADED; /* Load the physical device parameters. */ if (cd_get_parms(cd, 0) != 0) { error = ENXIO; goto bad2; } SC_DEBUG(periph, SCSIPI_DB3, ("Params loaded ")); /* Fabricate a disk label. */ cdgetdisklabel(cd); SC_DEBUG(periph, SCSIPI_DB3, ("Disklabel fabricated ")); } } /* Check that the partition exists. */ if (part != RAW_PART && (part >= cd->sc_dk.dk_label->d_npartitions || cd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { error = ENXIO; goto bad; } out: /* Insure only one open at a time. */ switch (fmt) { case S_IFCHR: cd->sc_dk.dk_copenmask |= (1 << part); break; case S_IFBLK: cd->sc_dk.dk_bopenmask |= (1 << part); break; } cd->sc_dk.dk_openmask = cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; SC_DEBUG(periph, SCSIPI_DB3, ("open complete\n")); lockmgr(&cd->sc_lock, LK_RELEASE, NULL); return (0); bad2: periph->periph_flags &= ~PERIPH_MEDIA_LOADED; bad: if (cd->sc_dk.dk_openmask == 0) { scsipi_prevent(periph, SPAMR_ALLOW, XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE); periph->periph_flags &= ~PERIPH_OPEN; } bad3: lockmgr(&cd->sc_lock, LK_RELEASE, NULL); bad4: if (cd->sc_dk.dk_openmask == 0) scsipi_adapter_delref(adapt); return (error); } /* * close the device.. only called if we are the LAST * occurence of an open device */ static int cdclose(dev_t dev, int flag, int fmt, struct proc *p) { struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)]; struct scsipi_periph *periph = cd->sc_periph; struct scsipi_adapter *adapt = periph->periph_channel->chan_adapter; int part = CDPART(dev); int error; if ((error = lockmgr(&cd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) return (error); switch (fmt) { case S_IFCHR: cd->sc_dk.dk_copenmask &= ~(1 << part); break; case S_IFBLK: cd->sc_dk.dk_bopenmask &= ~(1 << part); break; } cd->sc_dk.dk_openmask = cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; if (cd->sc_dk.dk_openmask == 0) { scsipi_wait_drain(periph); scsipi_prevent(periph, SPAMR_ALLOW, XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | XS_CTL_IGNORE_NOT_READY); periph->periph_flags &= ~PERIPH_OPEN; scsipi_wait_drain(periph); scsipi_adapter_delref(adapt); } lockmgr(&cd->sc_lock, LK_RELEASE, NULL); return (0); } /* * Actually translate the requested transfer into one the physical driver can * understand. The transfer is described by a buf and will include only one * physical transfer. */ static void cdstrategy(struct buf *bp) { struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; struct disklabel *lp; struct scsipi_periph *periph = cd->sc_periph; daddr_t blkno; int s; SC_DEBUG(cd->sc_periph, SCSIPI_DB2, ("cdstrategy ")); SC_DEBUG(cd->sc_periph, SCSIPI_DB1, ("%d bytes @ blk %" PRId64 "\n", bp->b_bcount, bp->b_blkno)); /* * If the device has been made invalid, error out * maybe the media changed */ if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { if (periph->periph_flags & PERIPH_OPEN) bp->b_error = EIO; else bp->b_error = ENODEV; goto bad; } lp = cd->sc_dk.dk_label; /* * The transfer must be a whole number of blocks, offset must not * be negative. */ if ((bp->b_bcount % lp->d_secsize) != 0 || bp->b_blkno < 0 ) { bp->b_error = EINVAL; goto bad; } /* * If it's a null transfer, return immediately */ if (bp->b_bcount == 0) goto done; /* * Do bounds checking, adjust transfer. if error, process. * If end of partition, just return. */ if (CDPART(bp->b_dev) == RAW_PART) { if (bounds_check_with_mediasize(bp, DEV_BSIZE, cd->params.disksize512) <= 0) goto done; } else { if (bounds_check_with_label(&cd->sc_dk, bp, (cd->flags & (CDF_WLABEL|CDF_LABELLING)) != 0) <= 0) goto done; } /* * Now convert the block number to absolute and put it in * terms of the device's logical block size. */ blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); if (CDPART(bp->b_dev) != RAW_PART) blkno += lp->d_partitions[CDPART(bp->b_dev)].p_offset; bp->b_rawblkno = blkno; /* * If the disklabel sector size does not match the device * sector size we may need to do some extra work. */ if (lp->d_secsize != cd->params.blksize) { /* * If the xfer is not a multiple of the device block size * or it is not block aligned, we need to bounce it. */ if ((bp->b_bcount % cd->params.blksize) != 0 || ((blkno * lp->d_secsize) % cd->params.blksize) != 0) { struct buf *nbp; void *bounce = NULL; long count; if ((bp->b_flags & B_READ) == 0) { /* XXXX We don't support bouncing writes. */ bp->b_error = EACCES; goto bad; } count = ((blkno * lp->d_secsize) % cd->params.blksize); /* XXX Store starting offset in bp->b_rawblkno */ bp->b_rawblkno = count; count += bp->b_bcount; count = roundup(count, cd->params.blksize); blkno = ((blkno * lp->d_secsize) / cd->params.blksize); s = splbio(); nbp = pool_get(&bufpool, PR_NOWAIT); splx(s); if (!nbp) { /* No memory -- fail the iop. */ bp->b_error = ENOMEM; goto bad; } bounce = malloc(count, M_DEVBUF, M_NOWAIT); if (!bounce) { /* No memory -- fail the iop. */ s = splbio(); pool_put(&bufpool, nbp); splx(s); bp->b_error = ENOMEM; goto bad; } /* Set up the IOP to the bounce buffer. */ BUF_INIT(nbp); nbp->b_error = 0; nbp->b_proc = bp->b_proc; nbp->b_vp = NULLVP; nbp->b_bcount = count; nbp->b_bufsize = count; nbp->b_data = bounce; nbp->b_rawblkno = blkno; /* We need to do a read-modify-write operation */ nbp->b_flags = bp->b_flags | B_READ | B_CALL; nbp->b_iodone = cdbounce; /* Put ptr to orig buf in b_private and use new buf */ nbp->b_private = bp; BIO_COPYPRIO(nbp, bp); bp = nbp; } else { /* Xfer is aligned -- just adjust the start block */ bp->b_rawblkno = (blkno * lp->d_secsize) / cd->params.blksize; } } s = splbio(); /* * Place it in the queue of disk activities for this disk. * * XXX Only do disksort() if the current operating mode does not * XXX include tagged queueing. */ BUFQ_PUT(&cd->buf_queue, bp); /* * Tell the device to get going on the transfer if it's * not doing anything, otherwise just wait for completion */ cdstart(cd->sc_periph); splx(s); return; bad: bp->b_flags |= B_ERROR; done: /* * Correctly set the buf to indicate a completed xfer */ bp->b_resid = bp->b_bcount; biodone(bp); } /* * cdstart looks to see if there is a buf waiting for the device * and that the device is not already busy. If both are true, * It deques the buf and creates a scsi command to perform the * transfer in the buf. The transfer request will call scsipi_done * on completion, which will in turn call this routine again * so that the next queued transfer is performed. * The bufs are queued by the strategy routine (cdstrategy) * * This routine is also called after other non-queued requests * have been made of the scsi driver, to ensure that the queue * continues to be drained. * * must be called at the correct (highish) spl level * cdstart() is called at splbio from cdstrategy, cdrestart and scsipi_done */ static void cdstart(struct scsipi_periph *periph) { struct cd_softc *cd = (void *)periph->periph_dev; struct buf *bp = 0; struct scsipi_rw_10 cmd_big; struct scsi_rw_6 cmd_small; struct scsipi_generic *cmdp; struct scsipi_xfer *xs; int flags, nblks, cmdlen, error; SC_DEBUG(periph, SCSIPI_DB2, ("cdstart ")); /* * Check if the device has room for another command */ while (periph->periph_active < periph->periph_openings) { /* * there is excess capacity, but a special waits * It'll need the adapter as soon as we clear out of the * way and let it run (user level wait). */ if (periph->periph_flags & PERIPH_WAITING) { periph->periph_flags &= ~PERIPH_WAITING; wakeup((caddr_t)periph); return; } /* * If the device has become invalid, abort all the * reads and writes until all files have been closed and * re-opened */ if (__predict_false( (periph->periph_flags & PERIPH_MEDIA_LOADED) == 0)) { if ((bp = BUFQ_GET(&cd->buf_queue)) != NULL) { bp->b_error = EIO; bp->b_flags |= B_ERROR; bp->b_resid = bp->b_bcount; biodone(bp); continue; } else { return; } } /* * See if there is a buf with work for us to do.. */ if ((bp = BUFQ_PEEK(&cd->buf_queue)) == NULL) return; /* * We have a buf, now we should make a command. */ nblks = howmany(bp->b_bcount, cd->params.blksize); /* * Fill out the scsi command. If the transfer will * fit in a "small" cdb, use it. */ if (((bp->b_rawblkno & 0x1fffff) == bp->b_rawblkno) && ((nblks & 0xff) == nblks) && !(periph->periph_quirks & PQUIRK_ONLYBIG)) { /* * We can fit in a small cdb. */ memset(&cmd_small, 0, sizeof(cmd_small)); cmd_small.opcode = (bp->b_flags & B_READ) ? SCSI_READ_6_COMMAND : SCSI_WRITE_6_COMMAND; _lto3b(bp->b_rawblkno, cmd_small.addr); cmd_small.length = nblks & 0xff; cmdlen = sizeof(cmd_small); cmdp = (struct scsipi_generic *)&cmd_small; } else { /* * Need a large cdb. */ memset(&cmd_big, 0, sizeof(cmd_big)); cmd_big.opcode = (bp->b_flags & B_READ) ? READ_10 : WRITE_10; _lto4b(bp->b_rawblkno, cmd_big.addr); _lto2b(nblks, cmd_big.length); cmdlen = sizeof(cmd_big); cmdp = (struct scsipi_generic *)&cmd_big; } /* Instrumentation. */ disk_busy(&cd->sc_dk); /* * Figure out what flags to use. */ flags = XS_CTL_NOSLEEP|XS_CTL_ASYNC|XS_CTL_SIMPLE_TAG; if (bp->b_flags & B_READ) flags |= XS_CTL_DATA_IN; else flags |= XS_CTL_DATA_OUT; /* * Call the routine that chats with the adapter. * Note: we cannot sleep as we may be an interrupt */ xs = scsipi_make_xs(periph, cmdp, cmdlen, (u_char *)bp->b_data, bp->b_bcount, CDRETRIES, 30000, bp, flags); if (__predict_false(xs == NULL)) { /* * out of memory. Keep this buffer in the queue, and * retry later. */ callout_reset(&cd->sc_callout, hz / 2, cdrestart, periph); return; } /* * need to dequeue the buffer before queuing the command, * because cdstart may be called recursively from the * HBA driver */ #ifdef DIAGNOSTIC if (BUFQ_GET(&cd->buf_queue) != bp) panic("cdstart(): dequeued wrong buf"); #else BUFQ_GET(&cd->buf_queue); #endif error = scsipi_execute_xs(xs); /* with a scsipi_xfer preallocated, scsipi_command can't fail */ KASSERT(error == 0); } } static void cdrestart(void *v) { int s = splbio(); cdstart((struct scsipi_periph *)v); splx(s); } static void cddone(struct scsipi_xfer *xs, int error) { struct cd_softc *cd = (void *)xs->xs_periph->periph_dev; struct buf *bp = xs->bp; if (bp) { bp->b_error = error; bp->b_resid = xs->resid; if (error) bp->b_flags |= B_ERROR; disk_unbusy(&cd->sc_dk, bp->b_bcount - bp->b_resid, (bp->b_flags & B_READ)); #if NRND > 0 rnd_add_uint32(&cd->rnd_source, bp->b_rawblkno); #endif biodone(bp); } } static void cdbounce(struct buf *bp) { struct buf *obp = (struct buf *)bp->b_private; if (bp->b_flags & B_ERROR) { /* EEK propagate the error and free the memory */ goto done; } if (obp->b_flags & B_READ) { /* Copy data to the final destination and free the buf. */ memcpy(obp->b_data, bp->b_data+obp->b_rawblkno, obp->b_bcount); } else { /* * XXXX This is a CD-ROM -- READ ONLY -- why do we bother with * XXXX any of this write stuff? */ if (bp->b_flags & B_READ) { struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; struct buf *nbp; int s; /* Read part of RMW complete. */ memcpy(bp->b_data+obp->b_rawblkno, obp->b_data, obp->b_bcount); s = splbio(); /* We need to alloc a new buf. */ nbp = pool_get(&bufpool, PR_NOWAIT); if (!nbp) { splx(s); /* No buf available. */ bp->b_flags |= B_ERROR; bp->b_error = ENOMEM; bp->b_resid = bp->b_bcount; } /* Set up the IOP to the bounce buffer. */ BUF_INIT(nbp); nbp->b_error = 0; nbp->b_proc = bp->b_proc; nbp->b_vp = NULLVP; nbp->b_bcount = bp->b_bcount; nbp->b_bufsize = bp->b_bufsize; nbp->b_data = bp->b_data; nbp->b_rawblkno = bp->b_rawblkno; /* We need to do a read-modify-write operation */ nbp->b_flags = obp->b_flags | B_CALL; nbp->b_iodone = cdbounce; /* Put ptr to orig buf in b_private and use new buf */ nbp->b_private = obp; /* * Place it in the queue of disk activities for this * disk. * * XXX Only do disksort() if the current operating mode * XXX does not include tagged queueing. */ BUFQ_PUT(&cd->buf_queue, nbp); /* * Tell the device to get going on the transfer if it's * not doing anything, otherwise just wait for * completion */ cdstart(cd->sc_periph); splx(s); return; } } done: obp->b_flags |= (bp->b_flags&(B_EINTR|B_ERROR)); obp->b_error = bp->b_error; obp->b_resid = bp->b_resid; free(bp->b_data, M_DEVBUF); biodone(obp); } static int cd_interpret_sense(struct scsipi_xfer *xs) { struct scsipi_periph *periph = xs->xs_periph; struct scsi_sense_data *sense = &xs->sense.scsi_sense; int retval = EJUSTRETURN; /* * If it isn't a extended or extended/deferred error, let * the generic code handle it. */ if (SSD_RCODE(sense->response_code) != SSD_RCODE_CURRENT && SSD_RCODE(sense->response_code) != SSD_RCODE_DEFERRED) return (retval); /* * If we got a "Unit not ready" (SKEY_NOT_READY) and "Logical Unit * Is In The Process of Becoming Ready" (Sense code 0x04,0x01), then * wait a bit for the drive to spin up */ if (SSD_SENSE_KEY(sense->flags) == SKEY_NOT_READY && sense->asc == 0x4 && sense->ascq == 0x01) { /* * Sleep for 5 seconds to wait for the drive to spin up */ SC_DEBUG(periph, SCSIPI_DB1, ("Waiting 5 sec for CD " "spinup\n")); if (!callout_pending(&periph->periph_callout)) scsipi_periph_freeze(periph, 1); callout_reset(&periph->periph_callout, 5 * hz, scsipi_periph_timed_thaw, periph); retval = ERESTART; } return (retval); } static void cdminphys(struct buf *bp) { struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; long xmax; /* * If the device is ancient, we want to make sure that * the transfer fits into a 6-byte cdb. * * XXX Note that the SCSI-I spec says that 256-block transfers * are allowed in a 6-byte read/write, and are specified * by settng the "length" to 0. However, we're conservative * here, allowing only 255-block transfers in case an * ancient device gets confused by length == 0. A length of 0 * in a 10-byte read/write actually means 0 blocks. */ if (cd->flags & CDF_ANCIENT) { xmax = cd->sc_dk.dk_label->d_secsize * 0xff; if (bp->b_bcount > xmax) bp->b_bcount = xmax; } (*cd->sc_periph->periph_channel->chan_adapter->adapt_minphys)(bp); } static int cdread(dev_t dev, struct uio *uio, int ioflag) { return (physio(cdstrategy, NULL, dev, B_READ, cdminphys, uio)); } static int cdwrite(dev_t dev, struct uio *uio, int ioflag) { return (physio(cdstrategy, NULL, dev, B_WRITE, cdminphys, uio)); } #if 0 /* XXX Not used */ /* * conversion between minute-seconde-frame and logical block address * addresses format */ static void lba2msf(u_long lba, u_char *m, u_char *s, u_char *f) { u_long tmp; tmp = lba + CD_BLOCK_OFFSET; /* offset of first logical frame */ tmp &= 0xffffff; /* negative lbas use only 24 bits */ *m = tmp / (CD_SECS * CD_FRAMES); tmp %= (CD_SECS * CD_FRAMES); *s = tmp / CD_FRAMES; *f = tmp % CD_FRAMES; } static u_long msf2lba(u_char m, u_char s, u_char f) { return ((((m * CD_SECS) + s) * CD_FRAMES + f) - CD_BLOCK_OFFSET); } #endif /* XXX Not used */ static int cdreadmsaddr(struct cd_softc *cd, int *addr) { struct scsipi_periph *periph = cd->sc_periph; int error; struct cd_toc toc; struct cd_toc_entry *cte; error = cd_read_toc_f0(cd, 0, 0, &toc, sizeof(struct ioc_toc_header) + sizeof(struct cd_toc_entry), XS_CTL_DATA_ONSTACK, 0x40 /* control word for "get MS info" */); if (error) return (error); cte = &toc.entries[0]; if (periph->periph_quirks & PQUIRK_LITTLETOC) { cte->addr.lba = le32toh(cte->addr.lba); toc.header.len = le16toh(toc.header.len); } else { cte->addr.lba = be32toh(cte->addr.lba); toc.header.len = be16toh(toc.header.len); } *addr = (toc.header.len >= 10 && cte->track > 1) ? cte->addr.lba : 0; return 0; } /* * Perform special action on behalf of the user. * Knows about the internals of this device */ static int cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) { struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)]; struct scsipi_periph *periph = cd->sc_periph; int part = CDPART(dev); int error = 0; #ifdef __HAVE_OLD_DISKLABEL struct disklabel *newlabel = NULL; #endif SC_DEBUG(cd->sc_periph, SCSIPI_DB2, ("cdioctl 0x%lx ", cmd)); /* * If the device is not valid, some IOCTLs can still be * handled on the raw partition. Check this here. */ if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { switch (cmd) { case DIOCWLABEL: case DIOCLOCK: case ODIOCEJECT: case DIOCEJECT: case SCIOCIDENTIFY: case OSCIOCIDENTIFY: case SCIOCCOMMAND: case SCIOCDEBUG: case CDIOCGETVOL: case CDIOCSETVOL: case CDIOCSETMONO: case CDIOCSETSTEREO: case CDIOCSETMUTE: case CDIOCSETLEFT: case CDIOCSETRIGHT: case CDIOCCLOSE: case CDIOCEJECT: case CDIOCALLOW: case CDIOCPREVENT: case CDIOCSETDEBUG: case CDIOCCLRDEBUG: case CDIOCRESET: case SCIOCRESET: case CDIOCLOADUNLOAD: case DVD_AUTH: case DVD_READ_STRUCT: if (part == RAW_PART) break; /* FALLTHROUGH */ default: if ((periph->periph_flags & PERIPH_OPEN) == 0) return (ENODEV); else return (EIO); } } switch (cmd) { case DIOCGDINFO: *(struct disklabel *)addr = *(cd->sc_dk.dk_label); return (0); #ifdef __HAVE_OLD_DISKLABEL case ODIOCGDINFO: newlabel = malloc(sizeof (*newlabel), M_TEMP, M_WAITOK); if (newlabel == NULL) return (EIO); memcpy(newlabel, cd->sc_dk.dk_label, sizeof (*newlabel)); if (newlabel->d_npartitions > OLDMAXPARTITIONS) error = ENOTTY; else memcpy(addr, newlabel, sizeof (struct olddisklabel)); free(newlabel, M_TEMP); return error; #endif case DIOCGPART: ((struct partinfo *)addr)->disklab = cd->sc_dk.dk_label; ((struct partinfo *)addr)->part = &cd->sc_dk.dk_label->d_partitions[part]; return (0); case DIOCWDINFO: case DIOCSDINFO: #ifdef __HAVE_OLD_DISKLABEL case ODIOCWDINFO: case ODIOCSDINFO: #endif { struct disklabel *lp; if ((flag & FWRITE) == 0) return (EBADF); #ifdef __HAVE_OLD_DISKLABEL if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) { newlabel = malloc(sizeof (*newlabel), M_TEMP, M_WAITOK); if (newlabel == NULL) return (EIO); memset(newlabel, 0, sizeof newlabel); memcpy(newlabel, addr, sizeof (struct olddisklabel)); lp = newlabel; } else #endif lp = (struct disklabel *)addr; if ((error = lockmgr(&cd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) goto bad; cd->flags |= CDF_LABELLING; error = setdisklabel(cd->sc_dk.dk_label, lp, /*cd->sc_dk.dk_openmask : */0, cd->sc_dk.dk_cpulabel); if (error == 0) { /* XXX ? */ } cd->flags &= ~CDF_LABELLING; lockmgr(&cd->sc_lock, LK_RELEASE, NULL); bad: #ifdef __HAVE_OLD_DISKLABEL if (newlabel != NULL) free(newlabel, M_TEMP); #endif return (error); } case DIOCWLABEL: return (EBADF); case DIOCGDEFLABEL: cdgetdefaultlabel(cd, (struct disklabel *)addr); return (0); #ifdef __HAVE_OLD_DISKLABEL case ODIOCGDEFLABEL: newlabel = malloc(sizeof (*newlabel), M_TEMP, M_WAITOK); if (newlabel == NULL) return (EIO); cdgetdefaultlabel(cd, newlabel); if (newlabel->d_npartitions > OLDMAXPARTITIONS) error = ENOTTY; else memcpy(addr, newlabel, sizeof (struct olddisklabel)); free(newlabel, M_TEMP); return error; #endif case CDIOCPLAYTRACKS: { struct ioc_play_track *args = (struct ioc_play_track *)addr; if ((error = cd_set_pa_immed(cd, 0)) != 0) return (error); return (cd_play_tracks(cd, args->start_track, args->start_index, args->end_track, args->end_index)); } case CDIOCPLAYMSF: { struct ioc_play_msf *args = (struct ioc_play_msf *)addr; if ((error = cd_set_pa_immed(cd, 0)) != 0) return (error); return (cd_play_msf(cd, args->start_m, args->start_s, args->start_f, args->end_m, args->end_s, args->end_f)); } case CDIOCPLAYBLOCKS: { struct ioc_play_blocks *args = (struct ioc_play_blocks *)addr; if ((error = cd_set_pa_immed(cd, 0)) != 0) return (error); return (cd_play(cd, args->blk, args->len)); } case CDIOCREADSUBCHANNEL: { struct ioc_read_subchannel *args = (struct ioc_read_subchannel *)addr; struct cd_sub_channel_info data; u_int len = args->data_len; if (len > sizeof(data) || len < sizeof(struct cd_sub_channel_header)) return (EINVAL); error = cd_read_subchannel(cd, args->address_format, args->data_format, args->track, &data, len, XS_CTL_DATA_ONSTACK); if (error) return (error); len = min(len, _2btol(data.header.data_len) + sizeof(struct cd_sub_channel_header)); return (copyout(&data, args->data, len)); } case CDIOREADTOCHEADER: { struct ioc_toc_header th; if ((error = cd_read_toc_f0(cd, 0, 0, &th, sizeof(th), XS_CTL_DATA_ONSTACK, 0)) != 0) return (error); if (cd->sc_periph->periph_quirks & PQUIRK_LITTLETOC) th.len = le16toh(th.len); else th.len = be16toh(th.len); memcpy(addr, &th, sizeof(th)); return (0); } case CDIOREADTOCENTRYS: { struct cd_toc toc; struct ioc_read_toc_entry *te = (struct ioc_read_toc_entry *)addr; struct ioc_toc_header *th; struct cd_toc_entry *cte; u_int len = te->data_len; int ntracks; th = &toc.header; if (len > sizeof(toc.entries) || len < sizeof(struct cd_toc_entry)) return (EINVAL); error = cd_read_toc_f0(cd, te->address_format, te->starting_track, &toc, len + sizeof(struct ioc_toc_header), XS_CTL_DATA_ONSTACK, 0); if (error) return (error); if (te->address_format == CD_LBA_FORMAT) for (ntracks = th->ending_track - th->starting_track + 1; ntracks >= 0; ntracks--) { cte = &toc.entries[ntracks]; cte->addr_type = CD_LBA_FORMAT; if (periph->periph_quirks & PQUIRK_LITTLETOC) cte->addr.lba = le32toh(cte->addr.lba); else cte->addr.lba = be32toh(cte->addr.lba); } if (periph->periph_quirks & PQUIRK_LITTLETOC) th->len = le16toh(th->len); else th->len = be16toh(th->len); len = min(len, th->len - (sizeof(th->starting_track) + sizeof(th->ending_track))); return (copyout(toc.entries, te->data, len)); } case CDIOREADMSADDR: { int sessno = *(int*)addr; if (sessno != 0) return (EINVAL); return (cdreadmsaddr(cd, (int*)addr)); } case CDIOCSETPATCH: { struct ioc_patch *arg = (struct ioc_patch *)addr; return (cd_setchan(cd, arg->patch[0], arg->patch[1], arg->patch[2], arg->patch[3], 0)); } case CDIOCGETVOL: { struct ioc_vol *arg = (struct ioc_vol *)addr; return (cd_getvol(cd, arg, 0)); } case CDIOCSETVOL: { struct ioc_vol *arg = (struct ioc_vol *)addr; return (cd_setvol(cd, arg, 0)); } case CDIOCSETMONO: return (cd_setchan(cd, BOTH_CHANNEL, BOTH_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); case CDIOCSETSTEREO: return (cd_setchan(cd, LEFT_CHANNEL, RIGHT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); case CDIOCSETMUTE: return (cd_setchan(cd, MUTE_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); case CDIOCSETLEFT: return (cd_setchan(cd, LEFT_CHANNEL, LEFT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); case CDIOCSETRIGHT: return (cd_setchan(cd, RIGHT_CHANNEL, RIGHT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); case CDIOCRESUME: return (cd_pause(cd, PA_RESUME)); case CDIOCPAUSE: return (cd_pause(cd, PA_PAUSE)); case CDIOCSTART: return (scsipi_start(periph, SSS_START, 0)); case CDIOCSTOP: return (scsipi_start(periph, SSS_STOP, 0)); case CDIOCCLOSE: return (scsipi_start(periph, SSS_START|SSS_LOEJ, XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE)); case DIOCEJECT: if (*(int *)addr == 0) { /* * Don't force eject: check that we are the only * partition open. If so, unlock it. */ if ((cd->sc_dk.dk_openmask & ~(1 << part)) == 0 && cd->sc_dk.dk_bopenmask + cd->sc_dk.dk_copenmask == cd->sc_dk.dk_openmask) { error = scsipi_prevent(periph, SPAMR_ALLOW, XS_CTL_IGNORE_NOT_READY); if (error) return (error); } else { return (EBUSY); } } /* FALLTHROUGH */ case CDIOCEJECT: /* FALLTHROUGH */ case ODIOCEJECT: return (scsipi_start(periph, SSS_STOP|SSS_LOEJ, 0)); case CDIOCALLOW: return (scsipi_prevent(periph, SPAMR_ALLOW, 0)); case CDIOCPREVENT: return (scsipi_prevent(periph, SPAMR_PREVENT_DT, 0)); case DIOCLOCK: return (scsipi_prevent(periph, (*(int *)addr) ? SPAMR_PREVENT_DT : SPAMR_ALLOW, 0)); case CDIOCSETDEBUG: cd->sc_periph->periph_dbflags |= (SCSIPI_DB1 | SCSIPI_DB2); return (0); case CDIOCCLRDEBUG: cd->sc_periph->periph_dbflags &= ~(SCSIPI_DB1 | SCSIPI_DB2); return (0); case CDIOCRESET: case SCIOCRESET: return (cd_reset(cd)); case CDIOCLOADUNLOAD: return (cd_load_unload(cd, (struct ioc_load_unload *)addr)); case DVD_AUTH: return (dvd_auth(cd, (dvd_authinfo *)addr)); case DVD_READ_STRUCT: return (dvd_read_struct(cd, (dvd_struct *)addr)); default: if (part != RAW_PART) return (ENOTTY); return (scsipi_do_ioctl(periph, dev, cmd, addr, flag, p)); } #ifdef DIAGNOSTIC panic("cdioctl: impossible"); #endif } static void cdgetdefaultlabel(struct cd_softc *cd, struct disklabel *lp) { int lastsession; memset(lp, 0, sizeof(struct disklabel)); lp->d_secsize = cd->params.blksize; lp->d_ntracks = 1; lp->d_nsectors = 100; lp->d_ncylinders = (cd->params.disksize / 100) + 1; lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; switch (scsipi_periph_bustype(cd->sc_periph)) { case SCSIPI_BUSTYPE_SCSI: lp->d_type = DTYPE_SCSI; break; case SCSIPI_BUSTYPE_ATAPI: lp->d_type = DTYPE_ATAPI; break; } /* * XXX * We could probe the mode pages to figure out what kind of disc it is. * Is this worthwhile? */ strncpy(lp->d_typename, "mydisc", 16); strncpy(lp->d_packname, "fictitious", 16); lp->d_secperunit = cd->params.disksize; lp->d_rpm = 300; lp->d_interleave = 1; lp->d_flags = D_REMOVABLE; if (cdreadmsaddr(cd, &lastsession) != 0) lastsession = 0; lp->d_partitions[0].p_offset = 0; #ifdef notyet /* have to fix bounds_check_with_label() first */ lp->d_partitions[0].p_size = lp->d_secperunit; #else lp->d_partitions[0].p_size = lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); #endif lp->d_partitions[0].p_cdsession = lastsession; lp->d_partitions[0].p_fstype = FS_ISO9660; lp->d_partitions[RAW_PART].p_offset = 0; #ifdef notyet lp->d_partitions[RAW_PART].p_size = lp->d_secperunit; #else lp->d_partitions[RAW_PART].p_size = lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); #endif lp->d_partitions[RAW_PART].p_fstype = FS_ISO9660; lp->d_npartitions = RAW_PART + 1; lp->d_magic = DISKMAGIC; lp->d_magic2 = DISKMAGIC; lp->d_checksum = dkcksum(lp); } /* * Load the label information on the named device * Actually fabricate a disklabel * * EVENTUALLY take information about different * data tracks from the TOC and put it in the disklabel */ static void cdgetdisklabel(struct cd_softc *cd) { struct disklabel *lp = cd->sc_dk.dk_label; const char *errstring; memset(cd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); cdgetdefaultlabel(cd, lp); /* * Call the generic disklabel extraction routine */ errstring = readdisklabel(MAKECDDEV(0, cd->sc_dev.dv_unit, RAW_PART), cdstrategy, lp, cd->sc_dk.dk_cpulabel); if (errstring) { printf("%s: %s\n", cd->sc_dev.dv_xname, errstring); goto error; } return; error: /* Reset to default label -- should print a warning */ memset(cd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); cdgetdefaultlabel(cd, lp); } /* * Find out from the device what it's capacity is */ static u_long cd_size(struct cd_softc *cd, int flags) { struct scsipi_read_cd_capacity cmd; struct scsipi_read_cd_cap_data data; int blksize; u_long size; if (cd->sc_periph->periph_quirks & PQUIRK_NOCAPACITY) { /* * the drive doesn't support the READ_CD_CAPACITY command * use a fake size */ cd->params.blksize = 2048; cd->params.disksize = 400000; cd->params.disksize512 = 1600000; return (400000); } /* * make up a scsi command and ask the scsi driver to do * it for you. */ memset(&cmd, 0, sizeof(cmd)); cmd.opcode = READ_CD_CAPACITY; /* * If the command works, interpret the result as a 4 byte * number of blocks and a blocksize */ if (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), (void *)&data, sizeof(data), CDRETRIES, 30000, NULL, flags | XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK) != 0) return (0); blksize = _4btol(data.length); if ((blksize < 512) || ((blksize & 511) != 0)) blksize = 2048; /* some drives lie ! */ if (blksize != 2048) { if (cd_setblksize(cd) == 0) blksize = 2048; } cd->params.blksize = blksize; size = _4btol(data.addr) + 1; if (size < 100) size = 400000; /* ditto */ cd->params.disksize = size; cd->params.disksize512 = ((u_int64_t)cd->params.disksize * blksize) / DEV_BSIZE; SC_DEBUG(cd->sc_periph, SCSIPI_DB2, ("cd_size: %d %ld\n", blksize, size)); return (size); } /* * Get scsi driver to send a "start playing" command */ static int cd_play(struct cd_softc *cd, int blkno, int nblks) { struct scsipi_play cmd; memset(&cmd, 0, sizeof(cmd)); cmd.opcode = PLAY; _lto4b(blkno, cmd.blk_addr); _lto2b(nblks, cmd.xfer_len); return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), 0, 0, CDRETRIES, 30000, NULL, 0)); } /* * Get scsi driver to send a "start playing" command */ static int cd_play_tracks(struct cd_softc *cd, int strack, int sindex, int etrack, int eindex) { struct cd_toc toc; int error; if (!etrack) return (EIO); if (strack > etrack) return (EINVAL); if ((error = cd_load_toc(cd, &toc, XS_CTL_DATA_ONSTACK)) != 0) return (error); if (++etrack > (toc.header.ending_track+1)) etrack = toc.header.ending_track+1; strack -= toc.header.starting_track; etrack -= toc.header.starting_track; if (strack < 0) return (EINVAL); return (cd_play_msf(cd, toc.entries[strack].addr.msf.minute, toc.entries[strack].addr.msf.second, toc.entries[strack].addr.msf.frame, toc.entries[etrack].addr.msf.minute, toc.entries[etrack].addr.msf.second, toc.entries[etrack].addr.msf.frame)); } /* * Get scsi driver to send a "play msf" command */ static int cd_play_msf(struct cd_softc *cd, int startm, int starts, int startf, int endm, int ends, int endf) { struct scsipi_play_msf cmd; memset(&cmd, 0, sizeof(cmd)); cmd.opcode = PLAY_MSF; cmd.start_m = startm; cmd.start_s = starts; cmd.start_f = startf; cmd.end_m = endm; cmd.end_s = ends; cmd.end_f = endf; return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), 0, 0, CDRETRIES, 30000, NULL, 0)); } /* * Get scsi driver to send a "start up" command */ static int cd_pause(struct cd_softc *cd, int go) { struct scsipi_pause cmd; memset(&cmd, 0, sizeof(cmd)); cmd.opcode = PAUSE; cmd.resume = go & 0xff; return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), 0, 0, CDRETRIES, 30000, NULL, 0)); } /* * Get scsi driver to send a "RESET" command */ static int cd_reset(struct cd_softc *cd) { return (scsipi_command(cd->sc_periph, 0, 0, 0, 0, CDRETRIES, 30000, NULL, XS_CTL_RESET)); } /* * Read subchannel */ static int cd_read_subchannel(struct cd_softc *cd, int mode, int format, int track, struct cd_sub_channel_info *data, int len, int flags) { struct scsipi_read_subchannel cmd; memset(&cmd, 0, sizeof(cmd)); cmd.opcode = READ_SUBCHANNEL; if (mode == CD_MSF_FORMAT) cmd.byte2 |= CD_MSF; cmd.byte3 = SRS_SUBQ; cmd.subchan_format = format; cmd.track = track; _lto2b(len, cmd.data_len); return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(struct scsipi_read_subchannel), (void *)data, len, CDRETRIES, 30000, NULL, flags | XS_CTL_DATA_IN | XS_CTL_SILENT)); } /* * Read table of contents */ static int cd_read_toc_f0(struct cd_softc *cd, int mode, int start, void *data, int len, int flags, int control) { struct scsipi_read_toc cmd; int ntoc; memset(&cmd, 0, sizeof(cmd)); #if 0 if (len != sizeof(struct ioc_toc_header)) ntoc = ((len) - sizeof(struct ioc_toc_header)) / sizeof(struct cd_toc_entry); else #endif ntoc = len; cmd.opcode = READ_TOC; if (mode == CD_MSF_FORMAT) cmd.addr_mode |= CD_MSF; cmd.resp_format = 0; cmd.from_track = start; _lto2b(ntoc, cmd.data_len); cmd.control = control; return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), (void *)data, len, CDRETRIES, 30000, NULL, flags | XS_CTL_DATA_IN)); } static int cd_load_toc(struct cd_softc *cd, struct cd_toc *toc, int flags) { int ntracks, len, error; if ((error = cd_read_toc_f0(cd, 0, 0, toc, sizeof(toc->header), flags, 0)) != 0) return (error); ntracks = toc->header.ending_track - toc->header.starting_track + 1; len = (ntracks + 1) * sizeof(struct cd_toc_entry) + sizeof(toc->header); if ((error = cd_read_toc_f0(cd, CD_MSF_FORMAT, 0, toc, len, flags, 0)) != 0) return (error); return (0); } /* * Get the scsi driver to send a full inquiry to the device and use the * results to fill out the disk parameter structure. */ static int cd_get_parms(struct cd_softc *cd, int flags) { /* * give a number of sectors so that sec * trks * cyls * is <= disk_size */ if (cd_size(cd, flags) == 0) return (ENXIO); return (0); } static int cdsize(dev_t dev) { /* CD-ROMs are read-only. */ return (-1); } static int cddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size) { /* Not implemented. */ return (ENXIO); } #define dvd_copy_key(dst, src) memcpy((dst), (src), sizeof(dvd_key)) #define dvd_copy_challenge(dst, src) memcpy((dst), (src), sizeof(dvd_challenge)) static int dvd_auth(struct cd_softc *cd, dvd_authinfo *a) { struct scsipi_generic cmd; u_int8_t bf[20]; int error; memset(cmd.bytes, 0, 15); memset(bf, 0, sizeof(bf)); switch (a->type) { case DVD_LU_SEND_AGID: cmd.opcode = GPCMD_REPORT_KEY; cmd.bytes[8] = 8; cmd.bytes[9] = 0 | (0 << 6); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 8, CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error) return (error); a->lsa.agid = bf[7] >> 6; return (0); case DVD_LU_SEND_CHALLENGE: cmd.opcode = GPCMD_REPORT_KEY; cmd.bytes[8] = 16; cmd.bytes[9] = 1 | (a->lsc.agid << 6); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 16, CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error) return (error); dvd_copy_challenge(a->lsc.chal, &bf[4]); return (0); case DVD_LU_SEND_KEY1: cmd.opcode = GPCMD_REPORT_KEY; cmd.bytes[8] = 12; cmd.bytes[9] = 2 | (a->lsk.agid << 6); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 12, CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error) return (error); dvd_copy_key(a->lsk.key, &bf[4]); return (0); case DVD_LU_SEND_TITLE_KEY: cmd.opcode = GPCMD_REPORT_KEY; _lto4b(a->lstk.lba, &cmd.bytes[1]); cmd.bytes[8] = 12; cmd.bytes[9] = 4 | (a->lstk.agid << 6); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 12, CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error) return (error); a->lstk.cpm = (bf[4] >> 7) & 1; a->lstk.cp_sec = (bf[4] >> 6) & 1; a->lstk.cgms = (bf[4] >> 4) & 3; dvd_copy_key(a->lstk.title_key, &bf[5]); return (0); case DVD_LU_SEND_ASF: cmd.opcode = GPCMD_REPORT_KEY; cmd.bytes[8] = 8; cmd.bytes[9] = 5 | (a->lsasf.agid << 6); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 8, CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error) return (error); a->lsasf.asf = bf[7] & 1; return (0); case DVD_HOST_SEND_CHALLENGE: cmd.opcode = GPCMD_SEND_KEY; cmd.bytes[8] = 16; cmd.bytes[9] = 1 | (a->hsc.agid << 6); bf[1] = 14; dvd_copy_challenge(&bf[4], a->hsc.chal); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 16, CDRETRIES, 30000, NULL, XS_CTL_DATA_OUT|XS_CTL_DATA_ONSTACK); if (error) return (error); a->type = DVD_LU_SEND_KEY1; return (0); case DVD_HOST_SEND_KEY2: cmd.opcode = GPCMD_SEND_KEY; cmd.bytes[8] = 12; cmd.bytes[9] = 3 | (a->hsk.agid << 6); bf[1] = 10; dvd_copy_key(&bf[4], a->hsk.key); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 12, CDRETRIES, 30000, NULL, XS_CTL_DATA_OUT|XS_CTL_DATA_ONSTACK); if (error) { a->type = DVD_AUTH_FAILURE; return (error); } a->type = DVD_AUTH_ESTABLISHED; return (0); case DVD_INVALIDATE_AGID: cmd.opcode = GPCMD_REPORT_KEY; cmd.bytes[9] = 0x3f | (a->lsa.agid << 6); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 16, CDRETRIES, 30000, NULL, 0); if (error) return (error); return (0); case DVD_LU_SEND_RPC_STATE: cmd.opcode = GPCMD_REPORT_KEY; cmd.bytes[8] = 8; cmd.bytes[9] = 8 | (0 << 6); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 8, CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error) return (error); a->lrpcs.type = (bf[4] >> 6) & 3; a->lrpcs.vra = (bf[4] >> 3) & 7; a->lrpcs.ucca = (bf[4]) & 7; a->lrpcs.region_mask = bf[5]; a->lrpcs.rpc_scheme = bf[6]; return (0); case DVD_HOST_SEND_RPC_STATE: cmd.opcode = GPCMD_SEND_KEY; cmd.bytes[8] = 8; cmd.bytes[9] = 6 | (0 << 6); bf[1] = 6; bf[4] = a->hrpcs.pdrc; error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 8, CDRETRIES, 30000, NULL, XS_CTL_DATA_OUT|XS_CTL_DATA_ONSTACK); if (error) return (error); return (0); default: return (ENOTTY); } } static int dvd_read_physical(struct cd_softc *cd, dvd_struct *s) { struct scsipi_generic cmd; u_int8_t bf[4 + 4 * 20], *bufp; int error; struct dvd_layer *layer; int i; memset(cmd.bytes, 0, 15); memset(bf, 0, sizeof(bf)); cmd.opcode = GPCMD_READ_DVD_STRUCTURE; cmd.bytes[6] = s->type; _lto2b(sizeof(bf), &cmd.bytes[7]); cmd.bytes[5] = s->physical.layer_num; error = scsipi_command(cd->sc_periph, &cmd, 12, bf, sizeof(bf), CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error) return (error); for (i = 0, bufp = &bf[4], layer = &s->physical.layer[0]; i < 4; i++, bufp += 20, layer++) { memset(layer, 0, sizeof(*layer)); layer->book_version = bufp[0] & 0xf; layer->book_type = bufp[0] >> 4; layer->min_rate = bufp[1] & 0xf; layer->disc_size = bufp[1] >> 4; layer->layer_type = bufp[2] & 0xf; layer->track_path = (bufp[2] >> 4) & 1; layer->nlayers = (bufp[2] >> 5) & 3; layer->track_density = bufp[3] & 0xf; layer->linear_density = bufp[3] >> 4; layer->start_sector = _4btol(&bufp[4]); layer->end_sector = _4btol(&bufp[8]); layer->end_sector_l0 = _4btol(&bufp[12]); layer->bca = bufp[16] >> 7; } return (0); } static int dvd_read_copyright(struct cd_softc *cd, dvd_struct *s) { struct scsipi_generic cmd; u_int8_t bf[8]; int error; memset(cmd.bytes, 0, 15); memset(bf, 0, sizeof(bf)); cmd.opcode = GPCMD_READ_DVD_STRUCTURE; cmd.bytes[6] = s->type; _lto2b(sizeof(bf), &cmd.bytes[7]); cmd.bytes[5] = s->copyright.layer_num; error = scsipi_command(cd->sc_periph, &cmd, 12, bf, sizeof(bf), CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error) return (error); s->copyright.cpst = bf[4]; s->copyright.rmi = bf[5]; return (0); } static int dvd_read_disckey(struct cd_softc *cd, dvd_struct *s) { struct scsipi_generic cmd; u_int8_t *bf; int error; bf = malloc(4 + 2048, M_TEMP, M_WAITOK|M_ZERO); if (bf == NULL) return EIO; memset(cmd.bytes, 0, 15); cmd.opcode = GPCMD_READ_DVD_STRUCTURE; cmd.bytes[6] = s->type; _lto2b(4 + 2048, &cmd.bytes[7]); cmd.bytes[9] = s->disckey.agid << 6; error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 4 + 2048, CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error == 0) memcpy(s->disckey.value, &bf[4], 2048); free(bf, M_TEMP); return error; } static int dvd_read_bca(struct cd_softc *cd, dvd_struct *s) { struct scsipi_generic cmd; u_int8_t bf[4 + 188]; int error; memset(cmd.bytes, 0, 15); memset(bf, 0, sizeof(bf)); cmd.opcode = GPCMD_READ_DVD_STRUCTURE; cmd.bytes[6] = s->type; _lto2b(sizeof(bf), &cmd.bytes[7]); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, sizeof(bf), CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error) return (error); s->bca.len = _2btol(&bf[0]); if (s->bca.len < 12 || s->bca.len > 188) return (EIO); memcpy(s->bca.value, &bf[4], s->bca.len); return (0); } static int dvd_read_manufact(struct cd_softc *cd, dvd_struct *s) { struct scsipi_generic cmd; u_int8_t *bf; int error; bf = malloc(4 + 2048, M_TEMP, M_WAITOK|M_ZERO); if (bf == NULL) return (EIO); memset(cmd.bytes, 0, 15); cmd.opcode = GPCMD_READ_DVD_STRUCTURE; cmd.bytes[6] = s->type; _lto2b(4 + 2048, &cmd.bytes[7]); error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 4 + 2048, CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); if (error == 0) { s->manufact.len = _2btol(&bf[0]); if (s->manufact.len >= 0 && s->manufact.len <= 2048) memcpy(s->manufact.value, &bf[4], s->manufact.len); else error = EIO; } free(bf, M_TEMP); return error; } static int dvd_read_struct(struct cd_softc *cd, dvd_struct *s) { switch (s->type) { case DVD_STRUCT_PHYSICAL: return (dvd_read_physical(cd, s)); case DVD_STRUCT_COPYRIGHT: return (dvd_read_copyright(cd, s)); case DVD_STRUCT_DISCKEY: return (dvd_read_disckey(cd, s)); case DVD_STRUCT_BCA: return (dvd_read_bca(cd, s)); case DVD_STRUCT_MANUFACT: return (dvd_read_manufact(cd, s)); default: return (EINVAL); } } static int cd_mode_sense(struct cd_softc *cd, u_int8_t byte2, void *sense, size_t size, int page, int flags, int *big) { if (cd->sc_periph->periph_quirks & PQUIRK_ONLYBIG) { *big = 1; return scsipi_mode_sense_big(cd->sc_periph, byte2, page, sense, size + sizeof(struct scsi_mode_parameter_header_10), flags | XS_CTL_DATA_ONSTACK, CDRETRIES, 20000); } else { *big = 0; return scsipi_mode_sense(cd->sc_periph, byte2, page, sense, size + sizeof(struct scsi_mode_parameter_header_6), flags | XS_CTL_DATA_ONSTACK, CDRETRIES, 20000); } } static int cd_mode_select(struct cd_softc *cd, u_int8_t byte2, void *sense, size_t size, int flags, int big) { if (big) { struct scsi_mode_parameter_header_10 *header = sense; _lto2b(0, header->data_length); return scsipi_mode_select_big(cd->sc_periph, byte2, sense, size + sizeof(struct scsi_mode_parameter_header_10), flags | XS_CTL_DATA_ONSTACK, CDRETRIES, 20000); } else { struct scsi_mode_parameter_header_6 *header = sense; header->data_length = 0; return scsipi_mode_select(cd->sc_periph, byte2, sense, size + sizeof(struct scsi_mode_parameter_header_6), flags | XS_CTL_DATA_ONSTACK, CDRETRIES, 20000); } } static int cd_set_pa_immed(struct cd_softc *cd, int flags) { struct { union { struct scsi_mode_parameter_header_6 small; struct scsi_mode_parameter_header_10 big; } header; struct cd_audio_page page; } data; int error; uint8_t oflags; int big, byte2; struct cd_audio_page *page; byte2 = SMS_DBD; try_again: if ((error = cd_mode_sense(cd, byte2, &data, sizeof(data.page), AUDIO_PAGE, flags, &big)) != 0) { if (byte2 == SMS_DBD) { /* Device may not understand DBD; retry without */ byte2 = 0; goto try_again; } return (error); } if (big) page = (void *)((u_long)&data.header.big + sizeof data.header.big + _2btol(data.header.big.blk_desc_len)); else page = (void *)((u_long)&data.header.small + sizeof data.header.small + data.header.small.blk_desc_len); oflags = page->flags; page->flags &= ~CD_PA_SOTC; page->flags |= CD_PA_IMMED; if (oflags == page->flags) return (0); return (cd_mode_select(cd, SMS_PF, &data, sizeof(struct scsi_mode_page_header) + page->pg_length, flags, big)); } static int cd_setchan(struct cd_softc *cd, int p0, int p1, int p2, int p3, int flags) { struct { union { struct scsi_mode_parameter_header_6 small; struct scsi_mode_parameter_header_10 big; } header; struct cd_audio_page page; } data; int error; int big, byte2; struct cd_audio_page *page; byte2 = SMS_DBD; try_again: if ((error = cd_mode_sense(cd, byte2, &data, sizeof(data.page), AUDIO_PAGE, flags, &big)) != 0) { if (byte2 == SMS_DBD) { /* Device may not understand DBD; retry without */ byte2 = 0; goto try_again; } return (error); } if (big) page = (void *)((u_long)&data.header.big + sizeof data.header.big + _2btol(data.header.big.blk_desc_len)); else page = (void *)((u_long)&data.header.small + sizeof data.header.small + data.header.small.blk_desc_len); page->port[0].channels = p0; page->port[1].channels = p1; page->port[2].channels = p2; page->port[3].channels = p3; return (cd_mode_select(cd, SMS_PF, &data, sizeof(struct scsi_mode_page_header) + page->pg_length, flags, big)); } static int cd_getvol(struct cd_softc *cd, struct ioc_vol *arg, int flags) { struct { union { struct scsi_mode_parameter_header_6 small; struct scsi_mode_parameter_header_10 big; } header; struct cd_audio_page page; } data; int error; int big, byte2; struct cd_audio_page *page; byte2 = SMS_DBD; try_again: if ((error = cd_mode_sense(cd, byte2, &data, sizeof(data.page), AUDIO_PAGE, flags, &big)) != 0) { if (byte2 == SMS_DBD) { /* Device may not understand DBD; retry without */ byte2 = 0; goto try_again; } return (error); } if (big) page = (void *)((u_long)&data.header.big + sizeof data.header.big + _2btol(data.header.big.blk_desc_len)); else page = (void *)((u_long)&data.header.small + sizeof data.header.small + data.header.small.blk_desc_len); arg->vol[0] = page->port[0].volume; arg->vol[1] = page->port[1].volume; arg->vol[2] = page->port[2].volume; arg->vol[3] = page->port[3].volume; return (0); } static int cd_setvol(struct cd_softc *cd, const struct ioc_vol *arg, int flags) { struct { union { struct scsi_mode_parameter_header_6 small; struct scsi_mode_parameter_header_10 big; } header; struct cd_audio_page page; } data, mask; int error; int big, byte2; struct cd_audio_page *page, *page2; byte2 = SMS_DBD; try_again: if ((error = cd_mode_sense(cd, byte2, &data, sizeof(data.page), AUDIO_PAGE, flags, &big)) != 0) { if (byte2 == SMS_DBD) { /* Device may not understand DBD; retry without */ byte2 = 0; goto try_again; } return (error); } if ((error = cd_mode_sense(cd, byte2, &mask, sizeof(mask.page), AUDIO_PAGE|SMS_PCTRL_CHANGEABLE, flags, &big)) != 0) return (error); if (big) { page = (void *)((u_long)&data.header.big + sizeof data.header.big + _2btol(data.header.big.blk_desc_len)); page2 = (void *)((u_long)&mask.header.big + sizeof mask.header.big + _2btol(mask.header.big.blk_desc_len)); } else { page = (void *)((u_long)&data.header.small + sizeof data.header.small + data.header.small.blk_desc_len); page2 = (void *)((u_long)&mask.header.small + sizeof mask.header.small + mask.header.small.blk_desc_len); } page->port[0].volume = arg->vol[0] & page2->port[0].volume; page->port[1].volume = arg->vol[1] & page2->port[1].volume; page->port[2].volume = arg->vol[2] & page2->port[2].volume; page->port[3].volume = arg->vol[3] & page2->port[3].volume; page->port[0].channels = CHANNEL_0; page->port[1].channels = CHANNEL_1; return (cd_mode_select(cd, SMS_PF, &data, sizeof(struct scsi_mode_page_header) + page->pg_length, flags, big)); } static int cd_load_unload(struct cd_softc *cd, struct ioc_load_unload *args) { struct scsipi_load_unload cmd; memset(&cmd, 0, sizeof(cmd)); cmd.opcode = LOAD_UNLOAD; cmd.options = args->options; /* ioctl uses MMC values */ cmd.slot = args->slot; return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), 0, 0, CDRETRIES, 200000, NULL, 0)); } static int cd_setblksize(struct cd_softc *cd) { struct { union { struct scsi_mode_parameter_header_6 small; struct scsi_mode_parameter_header_10 big; } header; struct scsi_general_block_descriptor blk_desc; } data; int error; int big, bsize; struct scsi_general_block_descriptor *bdesc; if ((error = cd_mode_sense(cd, 0, &data, sizeof(data.blk_desc), 0, 0, &big)) != 0) return (error); if (big) { bdesc = (void *)(&data.header.big + 1); bsize = _2btol(data.header.big.blk_desc_len); } else { bdesc = (void *)(&data.header.small + 1); bsize = data.header.small.blk_desc_len; } if (bsize == 0) { printf("cd_setblksize: trying to change bsize, but no blk_desc\n"); return (EINVAL); } if (_3btol(bdesc->blklen) == 2048) { printf("cd_setblksize: trying to change bsize, but blk_desc is correct\n"); return (EINVAL); } _lto3b(2048, bdesc->blklen); return (cd_mode_select(cd, SMS_PF, &data, sizeof(data.blk_desc), 0, big)); }