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NetBSD/sys/dev/scsipi/cd.c

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/* $NetBSD: cd.c,v 1.262 2007/03/04 06:02:42 christos Exp $ */
/*-
* Copyright (c) 1998, 2001, 2003, 2004, 2005 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* MMC discinfo/trackinfo contributed to the NetBSD Foundation by Reinoud
* Zandijk.
*
* 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cd.c,v 1.262 2007/03/04 06:02:42 christos Exp $");
#include "rnd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/buf.h>
#include <sys/bufq.h>
#include <sys/uio.h>
#include <sys/malloc.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/disklabel.h>
#include <sys/disk.h>
#include <sys/cdio.h>
#include <sys/dvdio.h>
#include <sys/scsiio.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/vnode.h>
#if NRND > 0
#include <sys/rnd.h>
#endif
#include <dev/scsipi/scsi_spc.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsipi_cd.h>
#include <dev/scsipi/scsipi_disk.h> /* rw_big and start_stop come */
#include <dev/scsipi/scsi_all.h>
/* from there */
#include <dev/scsipi/scsi_disk.h> /* rw comes from there */
#include <dev/scsipi/scsipiconf.h>
#include <dev/scsipi/scsipi_base.h>
#include <dev/scsipi/cdvar.h>
#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
#define CD_TOC_FORM 0 /* formatted TOC, exposed to userland */
#define CD_TOC_MSINFO 1 /* multi-session info */
#define CD_TOC_RAW 2 /* raw TOC as on disc, unprocessed */
#define CD_TOC_PMA 3 /* PMA, used as intermediate (rare use) */
#define CD_TOC_ATIP 4 /* pressed space of recordable */
#define CD_TOC_CDTEXT 5 /* special CD-TEXT, rarely used */
struct cd_formatted_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(struct cd_softc *, int, int, int, void *, int, int, int);
static int cd_get_parms(struct cd_softc *, int);
static int cd_load_toc(struct cd_softc *, int, struct cd_formatted_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);
static int mmc_getdiscinfo(struct scsipi_periph *, struct mmc_discinfo *);
static int mmc_gettrackinfo(struct scsipi_periph *, struct mmc_trackinfo *);
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, NULL };
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 = device_private(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, "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 = device_private(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(device_unit(self), 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 lwp *l)
{
struct cd_softc *cd;
struct scsipi_periph *periph;
struct scsipi_adapter *adapt;
int unit, part;
int error;
int rawpart;
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;
rawpart = (part == RAW_PART && fmt == S_IFCHR);
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 &&
!rawpart) {
error = EIO;
goto bad3;
}
} else {
int silent;
if (rawpart)
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 (rawpart)
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) {
if (rawpart)
goto out;
goto bad;
}
if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) {
/* Load the physical device parameters. */
if (cd_get_parms(cd, 0) != 0) {
if (rawpart)
goto out;
error = ENXIO;
goto bad;
}
periph->periph_flags |= PERIPH_MEDIA_LOADED;
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);
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 lwp *l)
{
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);
nbp = getiobuf_nowait();
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. */
putiobuf(nbp);
bp->b_error = ENOMEM;
goto bad;
}
/* Set up the IOP to the bounce buffer. */
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((void *)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) {
/* note, bp->b_resid is NOT initialised */
bp->b_error = error;
bp->b_resid = xs->resid;
if (error) {
/* on a read/write error bp->b_resid is zero, so fix */
bp->b_resid = bp->b_bcount;
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, (char *)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((char *)bp->b_data+obp->b_rawblkno, obp->b_data,
obp->b_bcount);
/* We need to alloc a new buf. */
nbp = getiobuf_nowait();
if (!nbp) {
/* No buf available. */
bp->b_flags |= B_ERROR;
bp->b_error = ENOMEM;
bp->b_resid = bp->b_bcount;
goto done;
}
/* Set up the IOP to the bounce buffer. */
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;
s = splbio();
/*
* 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_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;
}
/*
* If we got a "Unit not ready" (SKEY_NOT_READY) and "Long write in
* progress" (Sense code 0x04, 0x08), then wait for the specified
* time
*/
if ((SSD_SENSE_KEY(sense->flags) == SKEY_NOT_READY) &&
(sense->asc == 0x04) && (sense->ascq == 0x08)) {
/*
* long write in process; we could listen to the delay; but it
* looks like the skey data is not always returned.
*/
/* cd_delay = _2btol(sense->sks.sks_bytes); */
/* wait for a second and get going again */
if (!callout_pending(&periph->periph_callout))
scsipi_periph_freeze(periph, 1);
callout_reset(&periph->periph_callout,
1 * 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;
}
#endif /* XXX Not used */
/*
* Convert an hour:minute:second:frame address to a logical block adres. In
* theory the number of secs/minute and number of frames/second could be
* configured differently in the device as could the block offset but in
* practice these values are rock solid and most drives don't even allow
* theses values to be changed.
*/
static uint32_t
hmsf2lba(uint8_t h, uint8_t m, uint8_t s, uint8_t f)
{
return (((((uint32_t) h * 60 + m) * CD_SECS) + s) * CD_FRAMES + f)
- CD_BLOCK_OFFSET;
}
static int
cdreadmsaddr(struct cd_softc *cd, int *addr)
{
struct scsipi_periph *periph = cd->sc_periph;
int error;
struct cd_formatted_toc toc;
struct cd_toc_entry *cte;
error = cd_read_toc(cd, CD_TOC_FORM, 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;
}
/* synchronise caches code from sd.c, move to scsipi_ioctl.c ? */
static int
cdcachesync(struct scsipi_periph *periph, int flags) {
struct scsi_synchronize_cache_10 cmd;
/*
* Issue a SYNCHRONIZE CACHE. MMC devices have to issue with address 0
* and length 0 as it can't synchronise parts of the disc per spec.
* We ignore ILLEGAL REQUEST in the event that the command is not
* supported by the device, and poll for completion so that we know
* that the cache has actually been flushed.
*
* XXX should we handle the PQUIRK_NOSYNCCACHE ?
*/
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = SCSI_SYNCHRONIZE_CACHE_10;
return (scsipi_command(periph, (void *)&cmd, sizeof(cmd), 0, 0,
CDRETRIES, 30000, NULL, flags | XS_CTL_IGNORE_ILLEGAL_REQUEST));
}
/*
* Perform special action on behalf of the user.
* Knows about the internals of this device
*/
static int
cdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
{
struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)];
struct scsipi_periph *periph = cd->sc_periph;
int part = CDPART(dev);
int error = 0;
int s;
#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 DIOCCACHESYNC:
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:
case DIOCGSTRATEGY:
case DIOCSSTRATEGY:
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: {
/* PLAY_MSF command */
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: {
/* PLAY_MSF command */
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: {
/* PLAY command */
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: {
/* READ_SUBCHANNEL command */
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: {
/* READ TOC format 0 command, static header */
struct ioc_toc_header th;
if ((error = cd_read_toc(cd, CD_TOC_FORM, 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: {
/* READ TOC format 0 command, entries */
struct cd_formatted_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(cd, CD_TOC_FORM, 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: {
/* READ TOC format 0 command, length of first track only */
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: {
/* MODE SENSE command (AUDIO page) */
struct ioc_vol *arg = (struct ioc_vol *)addr;
return (cd_getvol(cd, arg, 0));
}
case CDIOCSETVOL: {
/* MODE SENSE/MODE SELECT commands (AUDIO page) */
struct ioc_vol *arg = (struct ioc_vol *)addr;
return (cd_setvol(cd, arg, 0));
}
case CDIOCSETMONO:
/* MODE SENSE/MODE SELECT commands (AUDIO page) */
return (cd_setchan(cd, BOTH_CHANNEL, BOTH_CHANNEL,
MUTE_CHANNEL, MUTE_CHANNEL, 0));
case CDIOCSETSTEREO:
/* MODE SENSE/MODE SELECT commands (AUDIO page) */
return (cd_setchan(cd, LEFT_CHANNEL, RIGHT_CHANNEL,
MUTE_CHANNEL, MUTE_CHANNEL, 0));
case CDIOCSETMUTE:
/* MODE SENSE/MODE SELECT commands (AUDIO page) */
return (cd_setchan(cd, MUTE_CHANNEL, MUTE_CHANNEL,
MUTE_CHANNEL, MUTE_CHANNEL, 0));
case CDIOCSETLEFT:
/* MODE SENSE/MODE SELECT commands (AUDIO page) */
return (cd_setchan(cd, LEFT_CHANNEL, LEFT_CHANNEL,
MUTE_CHANNEL, MUTE_CHANNEL, 0));
case CDIOCSETRIGHT:
/* MODE SENSE/MODE SELECT commands (AUDIO page) */
return (cd_setchan(cd, RIGHT_CHANNEL, RIGHT_CHANNEL,
MUTE_CHANNEL, MUTE_CHANNEL, 0));
case CDIOCRESUME:
/* PAUSE command */
return (cd_pause(cd, PA_RESUME));
case CDIOCPAUSE:
/* PAUSE command */
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 DIOCCACHESYNC:
/* SYNCHRONISE CACHES command */
return (cdcachesync(periph, 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:
/* LOAD_UNLOAD command */
return (cd_load_unload(cd, (struct ioc_load_unload *)addr));
case DVD_AUTH:
/* GPCMD_REPORT_KEY or GPCMD_SEND_KEY command */
return (dvd_auth(cd, (dvd_authinfo *)addr));
case DVD_READ_STRUCT:
/* GPCMD_READ_DVD_STRUCTURE command */
return (dvd_read_struct(cd, (dvd_struct *)addr));
case MMCGETDISCINFO:
/*
* GET_CONFIGURATION, READ_DISCINFO, READ_TRACKINFO,
* (READ_TOCf2, READ_CD_CAPACITY and GET_CONFIGURATION) commands
*/
return mmc_getdiscinfo(periph, (struct mmc_discinfo *) addr);
case MMCGETTRACKINFO:
/* READ TOCf2, READ_CD_CAPACITY and READ_TRACKINFO commands */
return mmc_gettrackinfo(periph, (struct mmc_trackinfo *) addr);
case DIOCGSTRATEGY:
{
struct disk_strategy *dks = (void *)addr;
s = splbio();
strlcpy(dks->dks_name, bufq_getstrategyname(cd->buf_queue),
sizeof(dks->dks_name));
splx(s);
dks->dks_paramlen = 0;
return 0;
}
case DIOCSSTRATEGY:
{
struct disk_strategy *dks = (void *)addr;
struct bufq_state *new;
struct bufq_state *old;
if ((flag & FWRITE) == 0) {
return EBADF;
}
if (dks->dks_param != NULL) {
return EINVAL;
}
dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */
error = bufq_alloc(&new, dks->dks_name,
BUFQ_EXACT|BUFQ_SORT_RAWBLOCK);
if (error) {
return error;
}
s = splbio();
old = cd->buf_queue;
bufq_move(new, old);
cd->buf_queue = new;
splx(s);
bufq_free(old);
return 0;
}
default:
if (part != RAW_PART)
return (ENOTTY);
return (scsipi_do_ioctl(periph, dev, cmd, addr, flag, l));
}
#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;
lp->d_partitions[0].p_size = lp->d_secperunit;
lp->d_partitions[0].p_cdsession = lastsession;
lp->d_partitions[0].p_fstype = FS_ISO9660;
lp->d_partitions[RAW_PART].p_offset = 0;
lp->d_partitions[RAW_PART].p_size = lp->d_secperunit;
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, device_unit(&cd->sc_dev),
RAW_PART), cdstrategy, lp, cd->sc_dk.dk_cpulabel);
/* if all went OK, we are passed a NULL error string */
if (errstring == NULL)
return;
/* Reset to default label -- after printing error and the warning */
printf("%s: %s\n", cd->sc_dev.dv_xname, errstring);
memset(cd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel));
cdgetdefaultlabel(cd, lp);
}
/*
* Reading a discs total capacity is aparently a very difficult issue for the
* SCSI standardisation group. Every disc type seems to have its own
* (re)invented size request method and modifiers. The failsafe way of
* determining the total (max) capacity i.e. not the recorded capacity but the
* total maximum capacity is to request the info on the last track and
* calucate the total size.
*
* For ROM drives, we go for the CD recorded capacity. For recordable devices
* we count.
*/
static int
read_cd_capacity(struct scsipi_periph *periph, u_int *blksize, u_long *size)
{
struct scsipi_read_cd_capacity cap_cmd;
struct scsipi_read_cd_cap_data cap;
struct scsipi_read_discinfo di_cmd;
struct scsipi_read_discinfo_data di;
struct scsipi_read_trackinfo ti_cmd;
struct scsipi_read_trackinfo_data ti;
uint32_t track_start, track_size;
int error, flags, msb, lsb, last_track;
/* if the device doesn't grog capacity, return the dummies */
if (periph->periph_quirks & PQUIRK_NOCAPACITY)
return 0;
/* first try read CD capacity for blksize and recorded size */
/* issue the cd capacity request */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK;
memset(&cap_cmd, 0, sizeof(cap_cmd));
cap_cmd.opcode = READ_CD_CAPACITY;
error = scsipi_command(periph,
(void *) &cap_cmd, sizeof(cap_cmd),
(void *) &cap, sizeof(cap),
CDRETRIES, 30000, NULL, flags);
if (error)
return error;
/* retrieve values and sanity check them */
*blksize = _4btol(cap.length);
*size = _4btol(cap.addr);
/* blksize is 2048 for CD, but some drives give gibberish */
if ((*blksize < 512) || ((*blksize & 511) != 0))
*blksize = 2048; /* some drives lie ! */
/* recordables have READ_DISCINFO implemented */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK | XS_CTL_SILENT;
memset(&di_cmd, 0, sizeof(di_cmd));
di_cmd.opcode = READ_DISCINFO;
_lto2b(READ_DISCINFO_BIGSIZE, di_cmd.data_len);
error = scsipi_command(periph,
(void *) &di_cmd, sizeof(di_cmd),
(void *) &di, READ_DISCINFO_BIGSIZE,
CDRETRIES, 30000, NULL, flags);
if (error == 0) {
msb = di.last_track_last_session_msb;
lsb = di.last_track_last_session_lsb;
last_track = (msb << 8) | lsb;
/* request info on last track */
memset(&ti_cmd, 0, sizeof(ti_cmd));
ti_cmd.opcode = READ_TRACKINFO;
ti_cmd.addr_type = 1; /* on tracknr */
_lto4b(last_track, ti_cmd.address); /* tracknr */
_lto2b(sizeof(ti), ti_cmd.data_len);
error = scsipi_command(periph,
(void *) &ti_cmd, sizeof(ti_cmd),
(void *) &ti, sizeof(ti),
CDRETRIES, 30000, NULL, flags);
if (error == 0) {
track_start = _4btol(ti.track_start);
track_size = _4btol(ti.track_size);
/* overwrite only with a sane value */
if (track_start + track_size >= 100)
*size = track_start + track_size;
}
}
/* sanity check for size */
if (*size < 100)
*size = 400000;
return 0;
}
/*
* Find out from the device what it's capacity is
*/
static u_long
cd_size(struct cd_softc *cd, int flags)
{
u_int blksize;
u_long size;
int error;
/* set up fake values */
blksize = 2048;
size = 400000;
/* if this function bounces with an error return fake value */
error = read_cd_capacity(cd->sc_periph, &blksize, &size);
if (error)
return size;
if (blksize != 2048) {
if (cd_setblksize(cd) == 0)
blksize = 2048;
}
cd->params.blksize = blksize;
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: %u %lu\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_formatted_toc toc;
int error;
if (!etrack)
return (EIO);
if (strack > etrack)
return (EINVAL);
error = cd_load_toc(cd, CD_TOC_FORM, &toc, XS_CTL_DATA_ONSTACK);
if (error)
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(struct cd_softc *cd, int respf, 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 = respf;
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, int respf, struct cd_formatted_toc *toc, int flags)
{
int ntracks, len, error;
if ((error = cd_read_toc(cd, respf, 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(cd, respf, 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);
disk_blocksize(&cd->sc_dk, cd->params.blksize);
return (0);
}
static int
cdsize(dev_t dev)
{
/* CD-ROMs are read-only. */
return (-1);
}
static int
cddump(dev_t dev, daddr_t blkno, void *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));
}
static int
mmc_profile2class(uint16_t mmc_profile)
{
switch (mmc_profile) {
case 0x01 : /* SCSI discs */
case 0x02 :
/* this can't happen really, cd.c wouldn't have matched */
return MMC_CLASS_DISC;
case 0x03 : /* Magneto Optical with sector erase */
case 0x04 : /* Magneto Optical write once */
case 0x05 : /* Advance Storage Magneto Optical */
return MMC_CLASS_MO;
case 0x00 : /* Unknown MMC profile, can also be CD-ROM */
case 0x08 : /* CD-ROM */
case 0x09 : /* CD-R */
case 0x0a : /* CD-RW */
return MMC_CLASS_CD;
case 0x10 : /* DVD-ROM */
case 0x11 : /* DVD-R */
case 0x12 : /* DVD-RAM */
case 0x13 : /* DVD-RW restricted overwrite */
case 0x14 : /* DVD-RW sequential */
case 0x1a : /* DVD+RW */
case 0x1b : /* DVD+R */
case 0x2a : /* DVD+RW Dual layer */
case 0x2b : /* DVD+R Dual layer */
case 0x50 : /* HD DVD-ROM */
case 0x51 : /* HD DVD-R */
case 0x52 : /* HD DVD-RW; DVD-RAM like */
return MMC_CLASS_DVD;
case 0x40 : /* BD-ROM */
case 0x41 : /* BD-R Sequential recording (SRM) */
case 0x42 : /* BD-R Ramdom Recording (RRM) */
case 0x43 : /* BD-RE */
return MMC_CLASS_BD;
}
return MMC_CLASS_UNKN;
}
/*
* Drive/media combination is reflected in a series of features that can
* either be current or dormant. We try to make sense out of them to create a
* set of easy to use flags that abstract the device/media capabilities.
*/
static void
mmc_process_feature(struct mmc_discinfo *mmc_discinfo,
uint16_t feature, int cur, uint8_t *rpos)
{
uint64_t flags;
if (cur == 1) {
flags = mmc_discinfo->mmc_cur;
} else {
flags = mmc_discinfo->mmc_cap;
}
switch (feature) {
case 0x0010 : /* random readable feature */
mmc_discinfo->sector_size = rpos[3] | (rpos[2] << 8) |
(rpos[1] << 16) | (rpos[0] << 24);
mmc_discinfo->blockingnr = rpos[5] | (rpos[4] << 8);
if (mmc_discinfo->blockingnr > 1)
flags |= MMC_CAP_PACKET;
/* RW error page */
break;
case 0x0020 : /* random writable feature */
flags |= MMC_CAP_RECORDABLE;
flags |= MMC_CAP_REWRITABLE;
break;
case 0x0021 : /* incremental streaming write feature */
flags |= MMC_CAP_RECORDABLE;
flags |= MMC_CAP_SEQUENTIAL;
if (cur) {
mmc_discinfo->link_block_penalty = rpos[4];
}
if (rpos[2] & 1)
flags |= MMC_CAP_ZEROLINKBLK;
break;
case 0x0022 : /* (obsolete) erase support feature */
flags |= MMC_CAP_RECORDABLE;
flags |= MMC_CAP_ERASABLE;
break;
case 0x0023 : /* formatting media support feature */
flags |= MMC_CAP_RECORDABLE;
flags |= MMC_CAP_FORMATTABLE;
break;
case 0x0024 : /* hardware assised defect management feature */
flags |= MMC_CAP_HW_DEFECTFREE;
break;
case 0x0025 : /* write once */
flags |= MMC_CAP_RECORDABLE;
break;
case 0x0026 : /* restricted overwrite feature */
flags |= MMC_CAP_RECORDABLE;
flags |= MMC_CAP_REWRITABLE;
flags |= MMC_CAP_STRICTOVERWRITE;
break;
case 0x0028 : /* MRW formatted media support feature */
flags |= MMC_CAP_MRW;
break;
case 0x002c : /* regid restricted overwrite feature */
flags |= MMC_CAP_RECORDABLE;
flags |= MMC_CAP_REWRITABLE;
flags |= MMC_CAP_STRICTOVERWRITE;
if (rpos[0] & 1) /* blank bit */
flags |= MMC_CAP_BLANKABLE;
break;
case 0x002d : /* track at once recording feature */
flags |= MMC_CAP_RECORDABLE;
flags |= MMC_CAP_SEQUENTIAL;
break;
case 0x002f : /* DVD-R/-RW write feature */
flags |= MMC_CAP_RECORDABLE;
if (rpos[0] & 2) /* DVD-RW bit */
flags |= MMC_CAP_BLANKABLE;
break;
case 0x0038 : /* BD-R SRM with pseudo overwrite */
flags |= MMC_CAP_PSEUDOOVERWRITE;
break;
default :
/* ignore */
break;
}
if (cur == 1) {
mmc_discinfo->mmc_cur = flags;
} else {
mmc_discinfo->mmc_cap = flags;
}
}
static int
mmc_getdiscinfo_cdrom(struct scsipi_periph *periph,
struct mmc_discinfo *mmc_discinfo)
{
struct scsipi_read_toc gtoc_cmd;
struct scsipi_toc_header *toc_hdr;
struct scsipi_toc_msinfo *toc_msinfo;
const uint32_t buffer_size = 1024;
uint32_t req_size;
uint8_t *buffer;
int error, flags;
buffer = malloc(buffer_size, M_TEMP, M_WAITOK);
/*
* Fabricate mmc_discinfo for CD-ROM. Some values are really `dont
* care' but others might be of interest to programs.
*/
mmc_discinfo->disc_state = MMC_STATE_FULL;
mmc_discinfo->last_session_state = MMC_STATE_FULL;
mmc_discinfo->bg_format_state = MMC_BGFSTATE_COMPLETED;
mmc_discinfo->link_block_penalty = 7; /* not relevant */
/* get number of sessions and first tracknr in last session */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK;
bzero(&gtoc_cmd, sizeof(gtoc_cmd));
gtoc_cmd.opcode = READ_TOC;
gtoc_cmd.addr_mode = CD_MSF; /* not relevant */
gtoc_cmd.resp_format = CD_TOC_MSINFO; /* multisession info */
gtoc_cmd.from_track = 0; /* reserved, must be 0 */
req_size = sizeof(*toc_hdr) + sizeof(*toc_msinfo);
_lto2b(req_size, gtoc_cmd.data_len);
error = scsipi_command(periph,
(void *)&gtoc_cmd, sizeof(gtoc_cmd),
(void *)buffer, req_size,
CDRETRIES, 30000, NULL, flags);
if (error)
goto out;
toc_hdr = (struct scsipi_toc_header *) buffer;
toc_msinfo = (struct scsipi_toc_msinfo *) (buffer + 4);
mmc_discinfo->num_sessions = toc_hdr->last - toc_hdr->first + 1;
mmc_discinfo->first_track = toc_hdr->first;
mmc_discinfo->first_track_last_session = toc_msinfo->tracknr;
/* get last track of last session */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK;
gtoc_cmd.resp_format = CD_TOC_FORM; /* formatted toc */
req_size = sizeof(*toc_hdr);
_lto2b(req_size, gtoc_cmd.data_len);
error = scsipi_command(periph,
(void *)&gtoc_cmd, sizeof(gtoc_cmd),
(void *)buffer, req_size,
CDRETRIES, 30000, NULL, flags);
if (error)
goto out;
toc_hdr = (struct scsipi_toc_header *) buffer;
mmc_discinfo->last_track_last_session = toc_hdr->last;
mmc_discinfo->num_tracks = toc_hdr->last - toc_hdr->first + 1;
/* TODO how to handle disc_barcode and disc_id */
/* done */
out:
free(buffer, M_TEMP);
return error;
}
static int
mmc_getdiscinfo_dvdrom(struct scsipi_periph *periph,
struct mmc_discinfo *mmc_discinfo)
{
struct scsipi_read_toc gtoc_cmd;
struct scsipi_toc_header toc_hdr;
uint32_t req_size;
int error, flags;
/*
* Fabricate mmc_discinfo for DVD-ROM. Some values are really `dont
* care' but others might be of interest to programs.
*/
mmc_discinfo->disc_state = MMC_STATE_FULL;
mmc_discinfo->last_session_state = MMC_STATE_FULL;
mmc_discinfo->bg_format_state = MMC_BGFSTATE_COMPLETED;
mmc_discinfo->link_block_penalty = 16; /* not relevant */
/* get number of sessions and first tracknr in last session */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK;
bzero(&gtoc_cmd, sizeof(gtoc_cmd));
gtoc_cmd.opcode = READ_TOC;
gtoc_cmd.addr_mode = 0; /* LBA */
gtoc_cmd.resp_format = CD_TOC_FORM; /* multisession info */
gtoc_cmd.from_track = 1; /* first track */
req_size = sizeof(toc_hdr);
_lto2b(req_size, gtoc_cmd.data_len);
error = scsipi_command(periph,
(void *)&gtoc_cmd, sizeof(gtoc_cmd),
(void *)&toc_hdr, req_size,
CDRETRIES, 30000, NULL, flags);
if (error)
return error;
/* DVD-ROM squashes the track/session space */
mmc_discinfo->num_sessions = toc_hdr.last - toc_hdr.first + 1;
mmc_discinfo->num_tracks = mmc_discinfo->num_sessions;
mmc_discinfo->first_track = toc_hdr.first;
mmc_discinfo->first_track_last_session = toc_hdr.last;
mmc_discinfo->last_track_last_session = toc_hdr.last;
/* TODO how to handle disc_barcode and disc_id */
/* done */
return 0;
}
static int
mmc_getdiscinfo(struct scsipi_periph *periph,
struct mmc_discinfo *mmc_discinfo)
{
struct scsipi_get_configuration gc_cmd;
struct scsipi_get_conf_data *gc;
struct scsipi_get_conf_feature *gcf;
struct scsipi_read_discinfo di_cmd;
struct scsipi_read_discinfo_data di;
const uint32_t buffer_size = 1024;
uint32_t feat_tbl_len, pos;
u_long last_lba;
uint8_t *buffer, *fpos;
int feature, last_feature, features_len, feature_cur, feature_len;
int lsb, msb, error, flags;
feat_tbl_len = buffer_size;
buffer = malloc(buffer_size, M_TEMP, M_WAITOK);
/* initialise structure */
memset(mmc_discinfo, 0, sizeof(struct mmc_discinfo));
mmc_discinfo->mmc_profile = 0x00; /* unknown */
mmc_discinfo->mmc_class = MMC_CLASS_UNKN;
mmc_discinfo->mmc_cur = 0;
mmc_discinfo->mmc_cap = 0;
mmc_discinfo->blockingnr = 1; /* not relevant if non packet write */
mmc_discinfo->link_block_penalty = 0;
/* determine mmc profile and class */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK;
memset(&gc_cmd, 0, sizeof(gc_cmd));
gc_cmd.opcode = GET_CONFIGURATION;
_lto2b(GET_CONF_NO_FEATURES_LEN, gc_cmd.data_len);
gc = (struct scsipi_get_conf_data *) buffer;
error = scsipi_command(periph,
(void *)&gc_cmd, sizeof(gc_cmd),
(void *) gc, GET_CONF_NO_FEATURES_LEN,
CDRETRIES, 30000, NULL, flags);
if (error)
goto out;
mmc_discinfo->mmc_profile = _2btol(gc->mmc_profile);
mmc_discinfo->mmc_class = mmc_profile2class(mmc_discinfo->mmc_profile);
/* assume 2048 sector size unless told otherwise */
mmc_discinfo->sector_size = 2048;
error = read_cd_capacity(periph, &mmc_discinfo->sector_size, &last_lba);
if (error)
goto out;
mmc_discinfo->last_possible_lba = (uint32_t) last_lba - 1;
/* Read in all features to determine device capabilities */
last_feature = feature = 0;
do {
/* determine mmc profile and class */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK;
memset(&gc_cmd, 0, sizeof(gc_cmd));
gc_cmd.opcode = GET_CONFIGURATION;
_lto2b(last_feature, gc_cmd.start_at_feature);
_lto2b(feat_tbl_len, gc_cmd.data_len);
error = scsipi_command(periph,
(void *)&gc_cmd, sizeof(gc_cmd),
(void *) gc, feat_tbl_len,
CDRETRIES, 30000, NULL, flags);
if (error) {
/* ieeek... break out of loop... i dunno what to do */
break;
}
features_len = _4btol(gc->data_len);
pos = 0;
fpos = &gc->feature_desc[0];
while (pos < features_len - 4) {
gcf = (struct scsipi_get_conf_feature *) fpos;
feature = _2btol(gcf->featurecode);
feature_cur = gcf->flags & 1;
feature_len = gcf->additional_length;
mmc_process_feature(mmc_discinfo,
feature, feature_cur,
gcf->feature_dependent);
last_feature = MAX(last_feature, feature);
assert((feature_len & 3) == 0);
pos += 4 + feature_len;
fpos += 4 + feature_len;
}
/* unlikely to ever grow past our 1kb buffer */
} while (features_len >= 0xffff);
#ifdef DEBUG
printf("CD mmc %d, mmc_cur 0x%"PRIx64", mmc_cap 0x%"PRIx64"\n",
mmc_discinfo->mmc_profile,
mmc_discinfo->mmc_cur, mmc_discinfo->mmc_cap);
#endif
/* read in disc state and number of sessions and tracks */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK | XS_CTL_SILENT;
memset(&di_cmd, 0, sizeof(di_cmd));
di_cmd.opcode = READ_DISCINFO;
di_cmd.data_len[1] = READ_DISCINFO_BIGSIZE;
error = scsipi_command(periph,
(void *)&di_cmd, sizeof(di_cmd),
(void *)&di, READ_DISCINFO_BIGSIZE,
CDRETRIES, 30000, NULL, flags);
if (error) {
/* discinfo call failed, emulate for cd-rom/dvd-rom */
if (mmc_discinfo->mmc_profile == 0x08) /* CD-ROM */
return mmc_getdiscinfo_cdrom(periph, mmc_discinfo);
if (mmc_discinfo->mmc_profile == 0x10) /* DVD-ROM */
return mmc_getdiscinfo_dvdrom(periph, mmc_discinfo);
/* CD/DVD drive is violating specs */
error = EIO;
goto out;
}
/* call went OK */
mmc_discinfo->disc_state = di.disc_state & 3;
mmc_discinfo->last_session_state = (di.disc_state >> 2) & 3;
mmc_discinfo->bg_format_state = (di.disc_state2 & 3);
lsb = di.num_sessions_lsb;
msb = di.num_sessions_msb;
mmc_discinfo->num_sessions = lsb | (msb << 8);
mmc_discinfo->first_track = di.first_track;
lsb = di.first_track_last_session_lsb;
msb = di.first_track_last_session_msb;
mmc_discinfo->first_track_last_session = lsb | (msb << 8);
lsb = di.last_track_last_session_lsb;
msb = di.last_track_last_session_msb;
mmc_discinfo->last_track_last_session = lsb | (msb << 8);
mmc_discinfo->num_tracks = mmc_discinfo->last_track_last_session -
mmc_discinfo->first_track + 1;
/* set misc. flags and parameters from this disc info */
if (di.disc_state & 16)
mmc_discinfo->mmc_cur |= MMC_CAP_BLANKABLE;
if (di.disc_state2 & 128) {
mmc_discinfo->disc_id = _4btol(di.discid);
mmc_discinfo->disc_flags |= MMC_DFLAGS_DISCIDVALID;
}
if (di.disc_state2 & 64) {
mmc_discinfo->disc_barcode = _8btol(di.disc_bar_code);
mmc_discinfo->disc_flags |= MMC_DFLAGS_BARCODEVALID;
}
if (di.disc_state2 & 32)
mmc_discinfo->disc_flags |= MMC_DFLAGS_UNRESTRICTED;
if (di.disc_state2 & 16) {
mmc_discinfo->application_code = di.application_code;
mmc_discinfo->disc_flags |= MMC_DFLAGS_APPCODEVALID;
}
/* done */
out:
free(buffer, M_TEMP);
return error;
}
static int
mmc_gettrackinfo_cdrom(struct scsipi_periph *periph,
struct mmc_trackinfo *trackinfo)
{
struct scsipi_read_toc gtoc_cmd;
struct scsipi_toc_header *toc_hdr;
struct scsipi_toc_rawtoc *rawtoc;
uint32_t track_start, track_end, track_size;
uint32_t last_recorded, next_writable;
uint32_t lba, next_track_start, lead_out;
const uint32_t buffer_size = 4 * 1024; /* worst case TOC estimate */
uint8_t *buffer;
uint8_t track_sessionnr, last_tracknr, sessionnr, adr, tno, point;
uint8_t tmin, tsec, tframe, pmin, psec, pframe;
int size, req_size;
int error, flags;
buffer = malloc(buffer_size, M_TEMP, M_WAITOK);
/*
* Emulate read trackinfo for CD-ROM using the raw-TOC.
*
* Not all information is present and this presents a problem. Track
* starts are known for each track but other values are deducted.
*
* For a complete overview of `magic' values used here, see the
* SCSI/ATAPI MMC documentation. Note that the `magic' values have no
* names, they are specified as numbers.
*/
/* get raw toc to process, first header to check size */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK | XS_CTL_SILENT;
bzero(&gtoc_cmd, sizeof(gtoc_cmd));
gtoc_cmd.opcode = READ_TOC;
gtoc_cmd.addr_mode = CD_MSF; /* not relevant */
gtoc_cmd.resp_format = CD_TOC_RAW; /* raw toc */
gtoc_cmd.from_track = 1; /* first session */
req_size = sizeof(*toc_hdr);
_lto2b(req_size, gtoc_cmd.data_len);
error = scsipi_command(periph,
(void *)&gtoc_cmd, sizeof(gtoc_cmd),
(void *)buffer, req_size,
CDRETRIES, 30000, NULL, flags);
if (error)
goto out;
toc_hdr = (struct scsipi_toc_header *) buffer;
if (_2btol(toc_hdr->length) > buffer_size - 2) {
#ifdef DIAGNOSTIC
printf("increase buffersize in mmc_readtrackinfo_cdrom\n");
#endif
error = ENOBUFS;
goto out;
}
/* read in complete raw toc */
req_size = _2btol(toc_hdr->length);
_lto2b(req_size, gtoc_cmd.data_len);
error = scsipi_command(periph,
(void *)&gtoc_cmd, sizeof(gtoc_cmd),
(void *)buffer, req_size,
CDRETRIES, 30000, NULL, flags);
if (error)
goto out;
toc_hdr = (struct scsipi_toc_header *) buffer;
rawtoc = (struct scsipi_toc_rawtoc *) (buffer + 4);
track_start = 0;
track_end = 0;
track_size = 0;
last_recorded = 0;
next_writable = 0;
flags = 0;
last_tracknr = 1;
next_track_start = 0;
track_sessionnr = MAXTRACK; /* by definition */
lead_out = 0;
size = req_size - sizeof(struct scsipi_toc_header) + 1;
while (size > 0) {
/* get track start and session end */
tno = rawtoc->tno;
sessionnr = rawtoc->sessionnr;
adr = rawtoc->adrcontrol >> 4;
point = rawtoc->point;
tmin = rawtoc->min;
tsec = rawtoc->sec;
tframe = rawtoc->frame;
pmin = rawtoc->pmin;
psec = rawtoc->psec;
pframe = rawtoc->pframe;
if (tno == 0 && sessionnr && adr == 1) {
lba = hmsf2lba(0, pmin, psec, pframe);
if (point == trackinfo->tracknr) {
track_start = lba;
track_sessionnr = sessionnr;
}
if (point == trackinfo->tracknr + 1) {
/* estimate size */
track_size = lba - track_start;
next_track_start = lba;
}
if (point == 0xa2) {
lead_out = lba;
}
if (point <= 0x63) {
/* CD's ok, DVD are glued */
last_tracknr = point;
}
if (sessionnr == track_sessionnr) {
last_recorded = lead_out;
}
}
if (tno == 0 && sessionnr && adr == 5) {
lba = hmsf2lba(0, tmin, tsec, tframe);
if (sessionnr == track_sessionnr) {
next_writable = lba;
}
}
rawtoc++;
size -= sizeof(struct scsipi_toc_rawtoc);
}
/* process found values; some voodoo */
/* if no tracksize tracknr is the last of the disc */
if ((track_size == 0) && last_recorded) {
track_size = last_recorded - track_start;
}
/* if last_recorded < tracksize, tracksize is overestimated */
if (last_recorded) {
if (last_recorded - track_start <= track_size) {
track_size = last_recorded - track_start;
flags |= MMC_TRACKINFO_LRA_VALID;
}
}
/* check if its a the last track of the sector */
if (next_writable) {
if (next_track_start > next_writable)
flags |= MMC_TRACKINFO_NWA_VALID;
}
/* no flag set -> no values */
if ((flags & MMC_TRACKINFO_LRA_VALID) == 0)
last_recorded = 0;
if ((flags & MMC_TRACKINFO_NWA_VALID) == 0)
next_writable = 0;
/* fill in */
/* trackinfo->tracknr preserved */
trackinfo->sessionnr = track_sessionnr;
trackinfo->track_mode = 7; /* data, incremental */
trackinfo->data_mode = 8; /* 2048 bytes mode1 */
trackinfo->flags = flags;
trackinfo->track_start = track_start;
trackinfo->next_writable = next_writable;
trackinfo->free_blocks = 0;
trackinfo->packet_size = 1;
trackinfo->track_size = track_size;
trackinfo->last_recorded = last_recorded;
out:
free(buffer, M_TEMP);
return error;
}
static int
mmc_gettrackinfo_dvdrom(struct scsipi_periph *periph,
struct mmc_trackinfo *trackinfo)
{
struct scsipi_read_toc gtoc_cmd;
struct scsipi_toc_header *toc_hdr;
struct scsipi_toc_formatted *toc;
uint32_t tracknr, track_start, track_size;
uint32_t lba, lead_out;
const uint32_t buffer_size = 4 * 1024; /* worst case TOC estimate */
uint8_t *buffer;
uint8_t last_tracknr;
int size, req_size;
int error, flags;
buffer = malloc(buffer_size, M_TEMP, M_WAITOK);
/*
* Emulate read trackinfo for DVD-ROM. We can't use the raw-TOC as the
* CD-ROM emulation uses since the specification tells us that no such
* thing is defined for DVD's. The reason for this is due to the large
* number of tracks and that would clash with the `magic' values. This
* suxs.
*
* Not all information is present and this presents a problem.
* Track starts are known for each track but other values are
* deducted.
*/
/* get formatted toc to process, first header to check size */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK | XS_CTL_SILENT;
bzero(&gtoc_cmd, sizeof(gtoc_cmd));
gtoc_cmd.opcode = READ_TOC;
gtoc_cmd.addr_mode = 0; /* lba's please */
gtoc_cmd.resp_format = CD_TOC_FORM; /* formatted toc */
gtoc_cmd.from_track = 1; /* first track */
req_size = sizeof(*toc_hdr);
_lto2b(req_size, gtoc_cmd.data_len);
error = scsipi_command(periph,
(void *)&gtoc_cmd, sizeof(gtoc_cmd),
(void *)buffer, req_size,
CDRETRIES, 30000, NULL, flags);
if (error)
goto out;
toc_hdr = (struct scsipi_toc_header *) buffer;
if (_2btol(toc_hdr->length) > buffer_size - 2) {
#ifdef DIAGNOSTIC
printf("incease buffersize in mmc_readtrackinfo_dvdrom\n");
#endif
error = ENOBUFS;
goto out;
}
/* read in complete formatted toc */
req_size = _2btol(toc_hdr->length);
_lto2b(req_size, gtoc_cmd.data_len);
error = scsipi_command(periph,
(void *)&gtoc_cmd, sizeof(gtoc_cmd),
(void *)buffer, req_size,
CDRETRIES, 30000, NULL, flags);
if (error)
goto out;
toc_hdr = (struct scsipi_toc_header *) buffer;
toc = (struct scsipi_toc_formatted *) (buffer + 4);
/* as in read disc info, all sessions are converted to tracks */
/* track 1.. -> offsets, sizes can be (rougly) estimated (16 ECC) */
/* last track -> we got the size from the lead-out */
tracknr = 0;
last_tracknr = toc_hdr->last;
track_start = 0;
track_size = 0;
lead_out = 0;
size = req_size - sizeof(struct scsipi_toc_header) + 1;
while (size > 0) {
/* remember, DVD-ROM: tracknr == sessionnr */
lba = _4btol(toc->msf_lba);
tracknr = toc->tracknr;
if (trackinfo->tracknr == tracknr) {
track_start = lba;
}
if (trackinfo->tracknr == tracknr+1) {
track_size = lba - track_start;
track_size -= 16; /* link block ? */
}
if (tracknr == 0xAA) {
lead_out = lba;
}
toc++;
size -= sizeof(struct scsipi_toc_formatted);
}
if (trackinfo->tracknr == last_tracknr) {
track_size = lead_out - track_start;
}
/* fill in */
/* trackinfo->tracknr preserved */
trackinfo->sessionnr = trackinfo->tracknr;
trackinfo->track_mode = 0; /* unknown */
trackinfo->data_mode = 8; /* 2048 bytes mode1 */
trackinfo->flags = 0;
trackinfo->track_start = track_start;
trackinfo->next_writable = 0;
trackinfo->free_blocks = 0;
trackinfo->packet_size = 16; /* standard length 16 blocks ECC */
trackinfo->track_size = track_size;
trackinfo->last_recorded = 0;
out:
free(buffer, M_TEMP);
return error;
}
static int
mmc_gettrackinfo(struct scsipi_periph *periph,
struct mmc_trackinfo *trackinfo)
{
struct scsipi_read_trackinfo ti_cmd;
struct scsipi_read_trackinfo_data ti;
struct scsipi_get_configuration gc_cmd;
struct scsipi_get_conf_data gc;
int error, flags;
int mmc_profile;
/* set up SCSI call with track number from trackinfo.tracknr */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK | XS_CTL_SILENT;
memset(&ti_cmd, 0, sizeof(ti_cmd));
ti_cmd.opcode = READ_TRACKINFO;
ti_cmd.addr_type = READ_TRACKINFO_ADDR_TRACK;
ti_cmd.data_len[1] = READ_TRACKINFO_RETURNSIZE;
/* trackinfo.tracknr contains number of tracks to query */
_lto4b(trackinfo->tracknr, ti_cmd.address);
error = scsipi_command(periph,
(void *)&ti_cmd, sizeof(ti_cmd),
(void *)&ti, READ_TRACKINFO_RETURNSIZE,
CDRETRIES, 30000, NULL, flags);
if (error) {
/* trackinfo call failed, emulate for cd-rom/dvd-rom */
/* first determine mmc profile */
flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK;
memset(&gc_cmd, 0, sizeof(gc_cmd));
gc_cmd.opcode = GET_CONFIGURATION;
_lto2b(GET_CONF_NO_FEATURES_LEN, gc_cmd.data_len);
error = scsipi_command(periph,
(void *)&gc_cmd, sizeof(gc_cmd),
(void *)&gc, GET_CONF_NO_FEATURES_LEN,
CDRETRIES, 30000, NULL, flags);
if (error)
return error;
mmc_profile = _2btol(gc.mmc_profile);
/* choose emulation */
if (mmc_profile == 0x08) /* CD-ROM */
return mmc_gettrackinfo_cdrom(periph, trackinfo);
if (mmc_profile == 0x10) /* DVD-ROM */
return mmc_gettrackinfo_dvdrom(periph, trackinfo);
/* CD/DVD drive is violating specs */
return EIO;
}
/* (re)initialise structure */
memset(trackinfo, 0, sizeof(struct mmc_trackinfo));
trackinfo->tracknr = ti.track_lsb | (ti.track_msb << 8);
trackinfo->sessionnr = ti.session_lsb | (ti.session_msb << 8);
trackinfo->track_mode = ti.track_info_1 & 0xf;
trackinfo->data_mode = ti.track_info_2 & 0xf;
flags = 0;
if (ti.track_info_1 & 0x10)
flags |= MMC_TRACKINFO_COPY;
if (ti.track_info_1 & 0x20)
flags |= MMC_TRACKINFO_DAMAGED;
if (ti.track_info_2 & 0x10)
flags |= MMC_TRACKINFO_FIXED_PACKET;
if (ti.track_info_2 & 0x20)
flags |= MMC_TRACKINFO_INCREMENTAL;
if (ti.track_info_2 & 0x40)
flags |= MMC_TRACKINFO_BLANK;
if (ti.track_info_2 & 0x80)
flags |= MMC_TRACKINFO_RESERVED;
if (ti.data_valid & 0x01)
flags |= MMC_TRACKINFO_NWA_VALID;
if (ti.data_valid & 0x02)
flags |= MMC_TRACKINFO_LRA_VALID;
trackinfo->flags = flags;
trackinfo->track_start = _4btol(ti.track_start);
trackinfo->next_writable = _4btol(ti.next_writable);
trackinfo->free_blocks = _4btol(ti.free_blocks);
trackinfo->packet_size = _4btol(ti.packet_size);
trackinfo->track_size = _4btol(ti.track_size);
trackinfo->last_recorded = _4btol(ti.last_recorded);
return 0;
}
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