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|
/* $OpenBSD: cd.c,v 1.77 2005/04/05 02:01:50 krw Exp $ */
/* $NetBSD: cd.c,v 1.100 1997/04/02 02:29:30 mycroft Exp $ */
/*
* Copyright (c) 1994, 1995, 1997 Charles M. Hannum. All rights reserved.
*
* 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 Charles M. Hannum.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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/types.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/mtio.h>
#include <sys/buf.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/proc.h>
#include <sys/conf.h>
#include <sys/scsiio.h>
#include <sys/vnode.h>
#include <scsi/scsi_all.h>
#include <scsi/cd.h>
#include <scsi/scsi_cd.h>
#include <scsi/scsi_disk.h> /* rw_big and start_stop come from there */
#include <scsi/scsiconf.h>
#include <ufs/ffs/fs.h> /* for BBSIZE and SBSIZE */
#include "cdvar.h"
#define CDOUTSTANDING 4
#define CDUNIT(z) DISKUNIT(z)
#define CDMINOR(unit, part) DISKMINOR(unit, part)
#define CDPART(z) DISKPART(z)
#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 TOC_HEADER_LEN 0
#define TOC_HEADER_STARTING_TRACK 2
#define TOC_HEADER_ENDING_TRACK 3
#define TOC_HEADER_SZ 4
#define TOC_ENTRY_CONTROL_ADDR_TYPE 1
#define TOC_ENTRY_TRACK 2
#define TOC_ENTRY_MSF_LBA 4
#define TOC_ENTRY_SZ 8
struct cd_toc {
struct ioc_toc_header header;
struct cd_toc_entry entries[MAXTRACK+1]; /* One extra for the */
/* leadout */
};
#define CDLABELDEV(dev) (MAKECDDEV(major(dev), CDUNIT(dev), RAW_PART))
int cdmatch(struct device *, void *, void *);
void cdattach(struct device *, struct device *, void *);
int cdactivate(struct device *, enum devact);
int cddetach(struct device *, int);
void cdzeroref(struct device *);
void cdstart(void *);
void cdminphys(struct buf *);
void cdgetdisklabel(dev_t, struct cd_softc *, struct disklabel *,
struct cpu_disklabel *, int);
void cddone(struct scsi_xfer *);
u_long cd_size(struct cd_softc *, int);
void lba2msf(u_long, u_char *, u_char *, u_char *);
u_long msf2lba(u_char, u_char, u_char);
int cd_play(struct cd_softc *, int, int);
int cd_play_tracks(struct cd_softc *, int, int, int, int);
int cd_play_msf(struct cd_softc *, int, int, int, int, int, int);
int cd_pause(struct cd_softc *, int);
int cd_reset(struct cd_softc *);
int cd_read_subchannel(struct cd_softc *, int, int, int,
struct cd_sub_channel_info *, int );
int cd_read_toc(struct cd_softc *, int, int, void *,
int, int );
int cd_get_parms(struct cd_softc *, int);
int cd_load_toc(struct cd_softc *, struct cd_toc *);
int dvd_auth(struct cd_softc *, union dvd_authinfo *);
int dvd_read_physical(struct cd_softc *, union dvd_struct *);
int dvd_read_copyright(struct cd_softc *, union dvd_struct *);
int dvd_read_disckey(struct cd_softc *, union dvd_struct *);
int dvd_read_bca(struct cd_softc *, union dvd_struct *);
int dvd_read_manufact(struct cd_softc *, union dvd_struct *);
int dvd_read_struct(struct cd_softc *, union dvd_struct *);
struct cfattach cd_ca = {
sizeof(struct cd_softc), cdmatch, cdattach,
cddetach, cdactivate, cdzeroref
};
struct cfdriver cd_cd = {
NULL, "cd", DV_DISK
};
struct dkdriver cddkdriver = { cdstrategy };
struct scsi_device cd_switch = {
NULL, /* use default error handler */
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 */
};
const struct scsi_inquiry_pattern cd_patterns[] = {
{T_CDROM, T_REMOV,
"", "", ""},
{T_WORM, T_REMOV,
"", "", ""},
{T_DIRECT, T_REMOV,
"NEC CD-ROM DRIVE:260", "", ""},
#if 0
{T_CDROM, T_REMOV, /* more luns */
"PIONEER ", "CD-ROM DRM-600 ", ""},
#endif
};
extern struct cd_ops cd_atapibus_ops;
extern struct cd_ops cd_scsibus_ops;
#define cdlock(softc) disk_lock(&(softc)->sc_dk)
#define cdunlock(softc) disk_unlock(&(softc)->sc_dk)
#define cdlookup(unit) (struct cd_softc *)device_lookup(&cd_cd, (unit))
int
cdmatch(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct scsibus_attach_args *sa = aux;
int priority;
(void)scsi_inqmatch(sa->sa_inqbuf,
cd_patterns, sizeof(cd_patterns)/sizeof(cd_patterns[0]),
sizeof(cd_patterns[0]), &priority);
return (priority);
}
/*
* The routine called by the low level scsi routine when it discovers
* A device suitable for this driver
*/
void
cdattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct cd_softc *cd = (void *)self;
struct scsibus_attach_args *sa = aux;
struct scsi_link *sc_link = sa->sa_sc_link;
SC_DEBUG(sc_link, SDEV_DB2, ("cdattach:\n"));
/*
* Store information needed to contact our base driver
*/
cd->sc_link = sc_link;
sc_link->device = &cd_switch;
sc_link->device_softc = cd;
if (sc_link->openings > CDOUTSTANDING)
sc_link->openings = CDOUTSTANDING;
/*
* 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);
dk_establish(&cd->sc_dk, &cd->sc_dev);
/*
* Note if this device is ancient. This is used in cdminphys().
*/
if (!(sc_link->flags & SDEV_ATAPI) &&
(sa->sa_inqbuf->version & SID_ANSII) == 0)
cd->flags |= CDF_ANCIENT;
if (sc_link->flags & SDEV_ATAPI) {
cd->sc_ops = &cd_atapibus_ops;
} else {
cd->sc_ops = &cd_scsibus_ops;
}
printf("\n");
}
int
cdactivate(self, act)
struct device *self;
enum devact act;
{
int rv = 0;
switch (act) {
case DVACT_ACTIVATE:
break;
case DVACT_DEACTIVATE:
/*
* Nothing to do; we key off the device's DVF_ACTIVATE.
*/
break;
}
return (rv);
}
int
cddetach(self, flags)
struct device *self;
int flags;
{
struct cd_softc *sc = (struct cd_softc *)self;
struct buf *dp, *bp;
int s, bmaj, cmaj, mn;
/* Remove unprocessed buffers from queue */
s = splbio();
for (dp = &sc->buf_queue; (bp = dp->b_actf) != NULL; ) {
dp->b_actf = bp->b_actf;
bp->b_error = ENXIO;
bp->b_flags |= B_ERROR;
biodone(bp);
}
splx(s);
/* locate the major number */
mn = CDMINOR(self->dv_unit, 0);
for (bmaj = 0; bmaj < nblkdev; bmaj++)
if (bdevsw[bmaj].d_open == cdopen)
vdevgone(bmaj, mn, mn + MAXPARTITIONS - 1, VBLK);
for (cmaj = 0; cmaj < nchrdev; cmaj++)
if (cdevsw[cmaj].d_open == cdopen)
vdevgone(cmaj, mn, mn + MAXPARTITIONS - 1, VCHR);
return (0);
}
void
cdzeroref(self)
struct device *self;
{
struct cd_softc *cd = (struct cd_softc *)self;
/* Detach disk. */
disk_detach(&cd->sc_dk);
}
/*
* Open the device. Make sure the partition info is as up-to-date as can be.
*/
int
cdopen(dev, flag, fmt, p)
dev_t dev;
int flag, fmt;
struct proc *p;
{
struct scsi_link *sc_link;
struct cd_softc *cd;
int unit, part;
int error = 0;
unit = CDUNIT(dev);
part = CDPART(dev);
cd = cdlookup(unit);
if (cd == NULL)
return (ENXIO);
sc_link = cd->sc_link;
SC_DEBUG(sc_link, SDEV_DB1,
("cdopen: dev=0x%x (unit %d (of %d), partition %d)\n", dev, unit,
cd_cd.cd_ndevs, part));
if ((error = cdlock(cd)) != 0) {
device_unref(&cd->sc_dev);
return (error);
}
if (cd->sc_dk.dk_openmask != 0) {
/*
* If any partition is open, but the disk has been invalidated,
* disallow further opens.
*/
if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0) {
if (part == RAW_PART && fmt == S_IFCHR)
goto out;
error = EIO;
goto bad;
}
} else {
/*
* Check that it is still responding and ok. Drive can be in
* progress of loading media so use increased retries number
* and don't ignore NOT_READY.
*/
error = scsi_test_unit_ready(sc_link, TEST_READY_RETRIES_CD,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE);
/* Start the cd spinning if necessary. */
if (error == EIO)
error = scsi_start(sc_link, SSS_START,
SCSI_IGNORE_ILLEGAL_REQUEST |
SCSI_IGNORE_MEDIA_CHANGE | SCSI_SILENT);
if (error) {
if (part == RAW_PART && fmt == S_IFCHR)
goto out;
else
goto bad;
}
/* Lock the cd in. */
error = scsi_prevent(sc_link, PR_PREVENT,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE);
if (error)
goto bad;
/* Load the physical device parameters. */
sc_link->flags |= SDEV_MEDIA_LOADED;
if (cd_get_parms(cd, 0) != 0) {
sc_link->flags &= ~SDEV_MEDIA_LOADED;
error = ENXIO;
goto bad;
}
SC_DEBUG(sc_link, SDEV_DB3, ("Params loaded\n"));
/* Fabricate a disk label. */
cdgetdisklabel(dev, cd, cd->sc_dk.dk_label,
cd->sc_dk.dk_cpulabel, 0);
SC_DEBUG(sc_link, SDEV_DB3, ("Disklabel fabricated\n"));
}
/* 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_link->flags |= SDEV_OPEN;
SC_DEBUG(sc_link, SDEV_DB3, ("open complete\n"));
/* It's OK to fall through because dk_openmask is now non-zero. */
bad:
if (cd->sc_dk.dk_openmask == 0) {
scsi_prevent(sc_link, PR_ALLOW,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE);
sc_link->flags &= ~(SDEV_OPEN | SDEV_MEDIA_LOADED);
}
cdunlock(cd);
device_unref(&cd->sc_dev);
return (error);
}
/*
* Close the device. Only called if we are the last occurrence of an open
* device.
*/
int
cdclose(dev, flag, fmt, p)
dev_t dev;
int flag, fmt;
struct proc *p;
{
struct cd_softc *cd;
int part = CDPART(dev);
int error;
cd = cdlookup(CDUNIT(dev));
if (cd == NULL)
return ENXIO;
if ((error = cdlock(cd)) != 0) {
device_unref(&cd->sc_dev);
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) {
/* XXXX Must wait for I/O to complete! */
scsi_prevent(cd->sc_link, PR_ALLOW,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY);
cd->sc_link->flags &= ~SDEV_OPEN;
if (cd->sc_link->flags & SDEV_EJECTING) {
scsi_start(cd->sc_link, SSS_STOP|SSS_LOEJ, 0);
cd->sc_link->flags &= ~SDEV_EJECTING;
}
}
cdunlock(cd);
device_unref(&cd->sc_dev);
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.
*/
void
cdstrategy(bp)
struct buf *bp;
{
struct cd_softc *cd;
int s;
if ((cd = cdlookup(CDUNIT(bp->b_dev))) == NULL) {
bp->b_error = ENXIO;
goto bad;
}
SC_DEBUG(cd->sc_link, SDEV_DB2, ("cdstrategy: %ld bytes @ blk %d\n",
bp->b_bcount, bp->b_blkno));
/*
* If the device has been made invalid, error out
* maybe the media changed, or no media loaded
*/
if ((cd->sc_link->flags & SDEV_MEDIA_LOADED) == 0) {
bp->b_error = EIO;
goto bad;
}
/*
* The transfer must be a whole number of blocks.
*/
if ((bp->b_bcount % cd->sc_dk.dk_label->d_secsize) != 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 &&
bounds_check_with_label(bp, cd->sc_dk.dk_label,
cd->sc_dk.dk_cpulabel,
(cd->flags & (CDF_WLABEL|CDF_LABELLING)) != 0) <= 0)
goto done;
s = splbio();
/*
* Place it in the queue of disk activities for this disk
*/
disksort(&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);
device_unref(&cd->sc_dev);
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;
s = splbio();
biodone(bp);
splx(s);
if (cd != NULL)
device_unref(&cd->sc_dev);
}
/*
* 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 scsi_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 and scsi_done
*/
void
cdstart(v)
register void *v;
{
register struct cd_softc *cd = v;
register struct scsi_link *sc_link = cd->sc_link;
struct buf *bp = 0;
struct buf *dp;
struct scsi_rw_big cmd_big;
struct scsi_rw cmd_small;
struct scsi_generic *cmdp;
int blkno, nblks, cmdlen;
struct partition *p;
splassert(IPL_BIO);
SC_DEBUG(sc_link, SDEV_DB2, ("cdstart\n"));
/*
* Check if the device has room for another command
*/
while (sc_link->openings > 0) {
/*
* 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 (sc_link->flags & SDEV_WAITING) {
sc_link->flags &= ~SDEV_WAITING;
wakeup((caddr_t)sc_link);
return;
}
/*
* See if there is a buf with work for us to do..
*/
dp = &cd->buf_queue;
if ((bp = dp->b_actf) == NULL) /* yes, an assign */
return;
dp->b_actf = bp->b_actf;
/*
* If the deivce has become invalid, abort all the
* reads and writes until all files have been closed and
* re-opened
*/
if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0) {
bp->b_error = EIO;
bp->b_flags |= B_ERROR;
bp->b_resid = bp->b_bcount;
biodone(bp);
continue;
}
/*
* We have a buf, now we should make a command
*
* First, translate the block to absolute and put it in terms
* of the logical blocksize of the device.
*/
blkno =
bp->b_blkno / (cd->sc_dk.dk_label->d_secsize / DEV_BSIZE);
if (CDPART(bp->b_dev) != RAW_PART) {
p = &cd->sc_dk.dk_label->d_partitions[CDPART(bp->b_dev)];
blkno += p->p_offset;
}
nblks = howmany(bp->b_bcount, cd->sc_dk.dk_label->d_secsize);
/*
* Fill out the scsi command. If the transfer will
* fit in a "small" cdb, use it.
*/
if (!(sc_link->flags & SDEV_ATAPI) &&
!(sc_link->quirks & SDEV_ONLYBIG) &&
((blkno & 0x1fffff) == blkno) &&
((nblks & 0xff) == nblks)) {
/*
* We can fit in a small cdb.
*/
bzero(&cmd_small, sizeof(cmd_small));
cmd_small.opcode = (bp->b_flags & B_READ) ?
READ_COMMAND : WRITE_COMMAND;
_lto3b(blkno, cmd_small.addr);
cmd_small.length = nblks & 0xff;
cmdlen = sizeof(cmd_small);
cmdp = (struct scsi_generic *)&cmd_small;
} else {
/*
* Need a large cdb.
*/
bzero(&cmd_big, sizeof(cmd_big));
cmd_big.opcode = (bp->b_flags & B_READ) ?
READ_BIG : WRITE_BIG;
_lto4b(blkno, cmd_big.addr);
_lto2b(nblks, cmd_big.length);
cmdlen = sizeof(cmd_big);
cmdp = (struct scsi_generic *)&cmd_big;
}
/* Instrumentation. */
disk_busy(&cd->sc_dk);
/*
* Call the routine that chats with the adapter.
* Note: we cannot sleep as we may be an interrupt
*/
if (scsi_scsi_cmd(sc_link, cmdp, cmdlen,
(u_char *) bp->b_data, bp->b_bcount,
CDRETRIES, 30000, bp, SCSI_NOSLEEP |
((bp->b_flags & B_READ) ? SCSI_DATA_IN : SCSI_DATA_OUT))) {
disk_unbusy(&cd->sc_dk, 0, 0);
printf("%s: not queued", cd->sc_dev.dv_xname);
}
}
}
void
cddone(xs)
struct scsi_xfer *xs;
{
struct cd_softc *cd = xs->sc_link->device_softc;
if (xs->bp != NULL)
disk_unbusy(&cd->sc_dk, xs->bp->b_bcount - xs->bp->b_resid,
(xs->bp->b_flags & B_READ));
}
void
cdminphys(bp)
struct buf *bp;
{
struct cd_softc *cd;
long max;
cd = cdlookup(CDUNIT(bp->b_dev));
if (cd == NULL)
return;
/*
* 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) {
max = cd->sc_dk.dk_label->d_secsize * 0xff;
if (bp->b_bcount > max)
bp->b_bcount = max;
}
(*cd->sc_link->adapter->scsi_minphys)(bp);
}
int
cdread(dev, uio, ioflag)
dev_t dev;
struct uio *uio;
int ioflag;
{
return (physio(cdstrategy, NULL, dev, B_READ, cdminphys, uio));
}
int
cdwrite(dev, uio, ioflag)
dev_t dev;
struct uio *uio;
int ioflag;
{
return (physio(cdstrategy, NULL, dev, B_WRITE, cdminphys, uio));
}
/*
* conversion between minute-seconde-frame and logical block address
* addresses format
*/
void
lba2msf (lba, m, s, f)
u_long lba;
u_char *m, *s, *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;
}
u_long
msf2lba (m, s, f)
u_char m, s, f;
{
return ((((m * CD_SECS) + s) * CD_FRAMES + f) - CD_BLOCK_OFFSET);
}
/*
* Perform special action on behalf of the user.
* Knows about the internals of this device
*/
int
cdioctl(dev, cmd, addr, flag, p)
dev_t dev;
u_long cmd;
caddr_t addr;
int flag;
struct proc *p;
{
struct cd_softc *cd;
int part = CDPART(dev);
int error = 0;
cd = cdlookup(CDUNIT(dev));
if (cd == NULL)
return ENXIO;
SC_DEBUG(cd->sc_link, SDEV_DB2, ("cdioctl 0x%lx\n", cmd));
/*
* If the device is not valid.. abandon ship
*/
if ((cd->sc_link->flags & SDEV_MEDIA_LOADED) == 0) {
switch (cmd) {
case DIOCWLABEL:
case DIOCLOCK:
case DIOCEJECT:
case SCIOCIDENTIFY:
case OSCIOCIDENTIFY:
case SCIOCCOMMAND:
case SCIOCDEBUG:
case CDIOCLOADUNLOAD:
case SCIOCRESET:
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 DVD_AUTH:
case DVD_READ_STRUCT:
case MTIOCTOP:
if (part == RAW_PART)
break;
/* FALLTHROUGH */
default:
if ((cd->sc_link->flags & SDEV_OPEN) == 0)
error = ENODEV;
else
error = EIO;
goto exit;
}
}
switch (cmd) {
case DIOCRLDINFO:
cdgetdisklabel(dev, cd, cd->sc_dk.dk_label,
cd->sc_dk.dk_cpulabel, 0);
break;
case DIOCGDINFO:
case DIOCGPDINFO:
*(struct disklabel *)addr = *(cd->sc_dk.dk_label);
break;
case DIOCGPART:
((struct partinfo *)addr)->disklab = cd->sc_dk.dk_label;
((struct partinfo *)addr)->part =
&cd->sc_dk.dk_label->d_partitions[CDPART(dev)];
break;
case DIOCWDINFO:
case DIOCSDINFO:
if ((flag & FWRITE) == 0) {
error = EBADF;
break;
}
if ((error = cdlock(cd)) != 0)
break;
cd->flags |= CDF_LABELLING;
error = setdisklabel(cd->sc_dk.dk_label,
(struct disklabel *)addr, /*cd->sc_dk.dk_openmask : */0,
cd->sc_dk.dk_cpulabel);
if (error == 0) {
}
cd->flags &= ~CDF_LABELLING;
cdunlock(cd);
break;
case DIOCWLABEL:
error = EBADF;
break;
case CDIOCPLAYTRACKS: {
struct ioc_play_track *args = (struct ioc_play_track *)addr;
if ((error = (*cd->sc_ops->cdo_set_pa_immed)(cd, 0)) != 0)
break;
error = cd_play_tracks(cd, args->start_track,
args->start_index, args->end_track, args->end_index);
break;
}
case CDIOCPLAYMSF: {
struct ioc_play_msf *args = (struct ioc_play_msf *)addr;
if ((error = (*cd->sc_ops->cdo_set_pa_immed)(cd, 0)) != 0)
break;
error = cd_play_msf(cd, args->start_m, args->start_s,
args->start_f, args->end_m, args->end_s, args->end_f);
break;
}
case CDIOCPLAYBLOCKS: {
struct ioc_play_blocks *args = (struct ioc_play_blocks *)addr;
if ((error = (*cd->sc_ops->cdo_set_pa_immed)(cd, 0)) != 0)
break;
error = cd_play(cd, args->blk, args->len);
break;
}
case CDIOCREADSUBCHANNEL: {
struct ioc_read_subchannel *args
= (struct ioc_read_subchannel *)addr;
struct cd_sub_channel_info data;
int len = args->data_len;
if (len > sizeof(data) ||
len < sizeof(struct cd_sub_channel_header)) {
error = EINVAL;
break;
}
error = cd_read_subchannel(cd, args->address_format,
args->data_format, args->track,
&data, len);
if (error)
break;
len = min(len, _2btol(data.header.data_len) +
sizeof(struct cd_sub_channel_header));
error = copyout(&data, args->data, len);
break;
}
case CDIOREADTOCHEADER: {
struct ioc_toc_header th;
if ((error = cd_read_toc(cd, 0, 0, &th, sizeof(th), 0)) != 0)
break;
if (cd->sc_link->quirks & ADEV_LITTLETOC)
th.len = letoh16(th.len);
else
th.len = ntohs(th.len);
bcopy(&th, addr, sizeof(th));
break;
}
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;
int len = te->data_len;
int ntracks;
MALLOC (toc, struct cd_toc *, sizeof (struct cd_toc),
M_DEVBUF, M_WAITOK);
th = &toc->header;
if (len > sizeof(toc->entries) ||
len < sizeof(struct cd_toc_entry)) {
FREE(toc, M_DEVBUF);
error = EINVAL;
break;
}
error = cd_read_toc(cd, te->address_format, te->starting_track,
toc, len + sizeof(struct ioc_toc_header), 0);
if (error) {
FREE(toc, M_DEVBUF);
break;
}
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 (cd->sc_link->quirks & ADEV_LITTLETOC) {
#if BYTE_ORDER == BIG_ENDIAN
swap16_multi((u_int16_t *)&cte->addr,
sizeof(cte->addr) / 2);
#endif
} else
cte->addr.lba = ntohl(cte->addr.lba);
}
if (cd->sc_link->quirks & ADEV_LITTLETOC) {
th->len = letoh16(th->len);
} else
th->len = ntohs(th->len);
len = min(len, th->len - (sizeof(th->starting_track) +
sizeof(th->ending_track)));
error = copyout(toc->entries, te->data, len);
FREE(toc, M_DEVBUF);
break;
}
case CDIOREADMSADDR: {
struct cd_toc *toc;
int sessno = *(int *)addr;
struct cd_toc_entry *cte;
if (sessno != 0) {
error = EINVAL;
break;
}
MALLOC (toc, struct cd_toc *, sizeof (struct cd_toc),
M_DEVBUF, M_WAITOK);
error = cd_read_toc(cd, 0, 0, toc,
sizeof(struct ioc_toc_header) + sizeof(struct cd_toc_entry),
0x40 /* control word for "get MS info" */);
if (error) {
FREE(toc, M_DEVBUF);
break;
}
cte = &toc->entries[0];
if (cd->sc_link->quirks & ADEV_LITTLETOC) {
#if BYTE_ORDER == BIG_ENDIAN
swap16_multi((u_int16_t *)&cte->addr,
sizeof(cte->addr) / 2);
#endif
} else
cte->addr.lba = ntohl(cte->addr.lba);
if (cd->sc_link->quirks & ADEV_LITTLETOC)
toc->header.len = letoh16(toc->header.len);
else
toc->header.len = ntohs(toc->header.len);
*(int *)addr = (toc->header.len >= 10 && cte->track > 1) ?
cte->addr.lba : 0;
FREE(toc, M_DEVBUF);
break;
}
case CDIOCSETPATCH: {
struct ioc_patch *arg = (struct ioc_patch *)addr;
error = (*cd->sc_ops->cdo_setchan)(cd, arg->patch[0],
arg->patch[1], arg->patch[2], arg->patch[3], 0);
break;
}
case CDIOCGETVOL: {
struct ioc_vol *arg = (struct ioc_vol *)addr;
error = (*cd->sc_ops->cdo_getvol)(cd, arg, 0);
break;
}
case CDIOCSETVOL: {
struct ioc_vol *arg = (struct ioc_vol *)addr;
error = (*cd->sc_ops->cdo_setvol)(cd, arg, 0);
break;
}
case CDIOCSETMONO:
error = (*cd->sc_ops->cdo_setchan)(cd, BOTH_CHANNEL,
BOTH_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0);
break;
case CDIOCSETSTEREO:
error = (*cd->sc_ops->cdo_setchan)(cd, LEFT_CHANNEL,
RIGHT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0);
break;
case CDIOCSETMUTE:
error = (*cd->sc_ops->cdo_setchan)(cd, MUTE_CHANNEL,
MUTE_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0);
break;
case CDIOCSETLEFT:
error = (*cd->sc_ops->cdo_setchan)(cd, LEFT_CHANNEL,
LEFT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0);
break;
case CDIOCSETRIGHT:
error = (*cd->sc_ops->cdo_setchan)(cd, RIGHT_CHANNEL,
RIGHT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0);
break;
case CDIOCRESUME:
error = cd_pause(cd, 1);
break;
case CDIOCPAUSE:
error = cd_pause(cd, 0);
break;
case CDIOCSTART:
error = scsi_start(cd->sc_link, SSS_START, 0);
break;
case CDIOCSTOP:
error = scsi_start(cd->sc_link, SSS_STOP, 0);
break;
case CDIOCCLOSE:
error = scsi_start(cd->sc_link, SSS_START|SSS_LOEJ,
SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE);
break;
case MTIOCTOP:
if (((struct mtop *)addr)->mt_op != MTOFFL) {
error = EIO;
break;
}
/* FALLTHROUGH */
case CDIOCEJECT: /* FALLTHROUGH */
case DIOCEJECT:
cd->sc_link->flags |= SDEV_EJECTING;
break;
case CDIOCALLOW:
error = scsi_prevent(cd->sc_link, PR_ALLOW, 0);
break;
case CDIOCPREVENT:
error = scsi_prevent(cd->sc_link, PR_PREVENT, 0);
break;
case DIOCLOCK:
error = scsi_prevent(cd->sc_link,
(*(int *)addr) ? PR_PREVENT : PR_ALLOW, 0);
break;
case CDIOCSETDEBUG:
cd->sc_link->flags |= (SDEV_DB1 | SDEV_DB2);
break;
case CDIOCCLRDEBUG:
cd->sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2);
break;
case CDIOCRESET:
case SCIOCRESET:
error = cd_reset(cd);
break;
case CDIOCLOADUNLOAD: {
struct ioc_load_unload *args = (struct ioc_load_unload *)addr;
error = (*cd->sc_ops->cdo_load_unload)(cd, args->options,
args->slot);
break;
}
case DVD_AUTH:
error = dvd_auth(cd, (union dvd_authinfo *)addr);
break;
case DVD_READ_STRUCT:
error = dvd_read_struct(cd, (union dvd_struct *)addr);
break;
default:
if (CDPART(dev) != RAW_PART) {
error = ENOTTY;
break;
}
error = scsi_do_ioctl(cd->sc_link, dev, cmd, addr, flag, p);
break;
}
exit:
device_unref(&cd->sc_dev);
return (error);
}
/*
* 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
*/
void
cdgetdisklabel(dev, cd, lp, clp, spoofonly)
dev_t dev;
struct cd_softc *cd;
struct disklabel *lp;
struct cpu_disklabel *clp;
int spoofonly;
{
char *errstring;
u_int8_t hdr[TOC_HEADER_SZ], *ent, *toc = NULL;
u_int32_t lba, nlba;
int tocidx, i, n, len, is_data, data_track = -1;
int toc_valid = 0;
bzero(lp, sizeof(struct disklabel));
bzero(clp, sizeof(struct cpu_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;
if (lp->d_secpercyl == 0) {
lp->d_secpercyl = 100;
/* as long as it's not 0 - readdisklabel divides by it */
}
if (cd->sc_link->flags & SDEV_ATAPI) {
strncpy(lp->d_typename, "ATAPI CD-ROM", sizeof(lp->d_typename));
lp->d_type = DTYPE_ATAPI;
} else {
strncpy(lp->d_typename, "SCSI CD-ROM", sizeof(lp->d_typename));
lp->d_type = DTYPE_SCSI;
}
strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname));
lp->d_secperunit = cd->params.disksize;
lp->d_rpm = 300;
lp->d_interleave = 1;
lp->d_flags = D_REMOVABLE;
/* XXX - these values for BBSIZE and SBSIZE assume ffs */
lp->d_bbsize = BBSIZE;
lp->d_sbsize = SBSIZE;
lp->d_magic = DISKMAGIC;
lp->d_magic2 = DISKMAGIC;
lp->d_checksum = dkcksum(lp);
/* The raw partition is special. */
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_UNUSED;
lp->d_npartitions = RAW_PART + 1;
/*
* Read the TOC and loop through the individual tracks and lay them
* out in our disklabel. If there is a data track, call the generic
* disklabel read routine. XXX should we move all data tracks up front
* before any other tracks?
*/
bzero(hdr, sizeof(hdr));
if (cd_read_toc(cd, 0, 0, hdr, TOC_HEADER_SZ, 0))
goto done;
n = hdr[TOC_HEADER_ENDING_TRACK] - hdr[TOC_HEADER_STARTING_TRACK] + 1;
if (n <= 0)
goto done;
/* n + 1 because of leadout track */
len = TOC_HEADER_SZ + (n + 1) * TOC_ENTRY_SZ;
MALLOC(toc, u_int8_t *, len, M_TEMP, M_WAITOK);
if (cd_read_toc (cd, CD_LBA_FORMAT, 0, toc, len, 0))
goto done;
/* Create the partition table. */
/* Probably should sanity-check the drive's values */
toc_valid = 1;
ent = toc + TOC_HEADER_SZ;
lba = ((cd->sc_link->quirks & ADEV_LITTLETOC) ?
ent[TOC_ENTRY_MSF_LBA] | ent[TOC_ENTRY_MSF_LBA + 1] << 8 |
ent[TOC_ENTRY_MSF_LBA + 2] << 16 |
ent[TOC_ENTRY_MSF_LBA + 3] << 24 :
ent[TOC_ENTRY_MSF_LBA] << 24 | ent[TOC_ENTRY_MSF_LBA + 1] << 16 |
ent[TOC_ENTRY_MSF_LBA + 2] << 8 | ent[TOC_ENTRY_MSF_LBA + 3]);
i = 0;
for (tocidx = 1; tocidx <= n; tocidx++) {
is_data = ent[TOC_ENTRY_CONTROL_ADDR_TYPE] & 4;
ent += TOC_ENTRY_SZ;
nlba = ((cd->sc_link->quirks & ADEV_LITTLETOC) ?
ent[TOC_ENTRY_MSF_LBA] |
ent[TOC_ENTRY_MSF_LBA + 1] << 8 |
ent[TOC_ENTRY_MSF_LBA + 2] << 16 |
ent[TOC_ENTRY_MSF_LBA + 3] << 24 :
ent[TOC_ENTRY_MSF_LBA] << 24 |
ent[TOC_ENTRY_MSF_LBA + 1] << 16 |
ent[TOC_ENTRY_MSF_LBA + 2] << 8 |
ent[TOC_ENTRY_MSF_LBA + 3]);
lp->d_partitions[i].p_fstype =
is_data ? FS_UNUSED : FS_OTHER;
lp->d_partitions[i].p_offset = lba;
lp->d_partitions[i].p_size = nlba - lba;
lba = nlba;
if (is_data) {
if (data_track == -1)
data_track = i;
i++;
if (i == RAW_PART)
i++;
if (i >= MAXPARTITIONS)
break;
}
}
if (i < MAXPARTITIONS)
bzero(&lp->d_partitions[i], sizeof(lp->d_partitions[i]));
lp->d_npartitions = max((RAW_PART + 1), i);
done:
if (toc)
FREE(toc, M_TEMP);
/* We have a data track, look in there for a real disklabel. */
if (data_track != -1 || !toc_valid) {
errstring = readdisklabel(CDLABELDEV(dev),
cdstrategy, lp, clp, spoofonly);
/*if (errstring)
printf("%s: %s\n", cd->sc_dev.dv_xname, errstring);*/
}
}
/*
* Find out from the device what it's capacity is
*/
u_long
cd_size(cd, flags)
struct cd_softc *cd;
int flags;
{
struct scsi_read_cd_cap_data rdcap;
struct scsi_read_cd_capacity scsi_cmd;
int blksize;
u_long size;
/* Reasonable defaults for drives that don't support
READ_CD_CAPACITY */
cd->params.blksize = 2048;
cd->params.disksize = 400000;
if (cd->sc_link->quirks & ADEV_NOCAPACITY)
goto exit;
/*
* make up a scsi command and ask the scsi driver to do
* it for you.
*/
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.opcode = READ_CD_CAPACITY;
/*
* If the command works, interpret the result as a 4 byte
* number of blocks and a blocksize
*/
if (scsi_scsi_cmd(cd->sc_link,
(struct scsi_generic *)&scsi_cmd, sizeof(scsi_cmd),
(u_char *)&rdcap, sizeof(rdcap), CDRETRIES, 20000, NULL,
flags | SCSI_DATA_IN) != 0)
goto exit;
blksize = _4btol(rdcap.length);
if ((blksize < 512) || ((blksize & 511) != 0))
blksize = 2048; /* some drives lie ! */
cd->params.blksize = blksize;
size = _4btol(rdcap.addr) + 1;
if (size < 100)
size = 400000; /* ditto */
cd->params.disksize = size;
exit:
SC_DEBUG(cd->sc_link, SDEV_DB2, ("cd_size: %d %ld\n", blksize, size));
return (cd->params.disksize);
}
/*
* Get scsi driver to send a "start playing" command
*/
int
cd_play(cd, blkno, nblks)
struct cd_softc *cd;
int blkno, nblks;
{
struct scsi_play scsi_cmd;
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.opcode = PLAY;
_lto4b(blkno, scsi_cmd.blk_addr);
_lto2b(nblks, scsi_cmd.xfer_len);
return (scsi_scsi_cmd(cd->sc_link,
(struct scsi_generic *)&scsi_cmd, sizeof(scsi_cmd),
0, 0, CDRETRIES, 200000, NULL, 0));
}
/*
* Get scsi driver to send a "start playing" command
*/
int
cd_play_tracks(cd, strack, sindex, etrack, eindex)
struct cd_softc *cd;
int strack, sindex, etrack, eindex;
{
struct cd_toc toc;
u_char endf, ends, endm;
int error;
if (!etrack)
return (EIO);
if (strack > etrack)
return (EINVAL);
if ((error = cd_load_toc(cd, &toc)) != 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);
/*
* The track ends one frame before the next begins. The last track
* is taken care of by the leadoff track.
*/
endm = toc.entries[etrack].addr.msf.minute;
ends = toc.entries[etrack].addr.msf.second;
endf = toc.entries[etrack].addr.msf.frame;
if (endf-- == 0) {
endf = CD_FRAMES - 1;
if (ends-- == 0) {
ends = CD_SECS - 1;
if (endm-- == 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,
endm, ends, endf));
}
/*
* Get scsi driver to send a "play msf" command
*/
int
cd_play_msf(cd, startm, starts, startf, endm, ends, endf)
struct cd_softc *cd;
int startm, starts, startf, endm, ends, endf;
{
struct scsi_play_msf scsi_cmd;
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.opcode = PLAY_MSF;
scsi_cmd.start_m = startm;
scsi_cmd.start_s = starts;
scsi_cmd.start_f = startf;
scsi_cmd.end_m = endm;
scsi_cmd.end_s = ends;
scsi_cmd.end_f = endf;
return (scsi_scsi_cmd(cd->sc_link,
(struct scsi_generic *)&scsi_cmd, sizeof(scsi_cmd),
0, 0, CDRETRIES, 20000, NULL, 0));
}
/*
* Get scsi driver to send a "start up" command
*/
int
cd_pause(cd, go)
struct cd_softc *cd;
int go;
{
struct scsi_pause scsi_cmd;
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.opcode = PAUSE;
scsi_cmd.resume = go;
return scsi_scsi_cmd(cd->sc_link, (struct scsi_generic *)&scsi_cmd,
sizeof(scsi_cmd), 0, 0, CDRETRIES, 2000, NULL, 0);
}
/*
* Get scsi driver to send a "RESET" command
*/
int
cd_reset(cd)
struct cd_softc *cd;
{
return scsi_scsi_cmd(cd->sc_link, 0, 0, 0, 0, CDRETRIES, 2000, NULL,
SCSI_RESET);
}
/*
* Read subchannel
*/
int
cd_read_subchannel(cd, mode, format, track, data, len)
struct cd_softc *cd;
int mode, format, track, len;
struct cd_sub_channel_info *data;
{
struct scsi_read_subchannel scsi_cmd;
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.opcode = READ_SUBCHANNEL;
if (mode == CD_MSF_FORMAT)
scsi_cmd.byte2 |= CD_MSF;
scsi_cmd.byte3 = SRS_SUBQ;
scsi_cmd.subchan_format = format;
scsi_cmd.track = track;
_lto2b(len, scsi_cmd.data_len);
return scsi_scsi_cmd(cd->sc_link, (struct scsi_generic *)&scsi_cmd,
sizeof(struct scsi_read_subchannel), (u_char *)data, len,
CDRETRIES, 5000, NULL, SCSI_DATA_IN|SCSI_SILENT);
}
/*
* Read table of contents
*/
int
cd_read_toc(cd, mode, start, data, len, control)
struct cd_softc *cd;
int mode, start, len, control;
void *data;
{
struct scsi_read_toc scsi_cmd;
int ntoc;
bzero(&scsi_cmd, sizeof(scsi_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;
scsi_cmd.opcode = READ_TOC;
if (mode == CD_MSF_FORMAT)
scsi_cmd.byte2 |= CD_MSF;
scsi_cmd.from_track = start;
_lto2b(ntoc, scsi_cmd.data_len);
scsi_cmd.control = control;
return scsi_scsi_cmd(cd->sc_link, (struct scsi_generic *)&scsi_cmd,
sizeof(struct scsi_read_toc), (u_char *)data, len, CDRETRIES,
5000, NULL, SCSI_DATA_IN);
}
int
cd_load_toc(cd, toc)
struct cd_softc *cd;
struct cd_toc *toc;
{
int ntracks, len, error;
if ((error = cd_read_toc(cd, 0, 0, toc, sizeof(toc->header), 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, CD_MSF_FORMAT, 0, toc, len, 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.
*/
int
cd_get_parms(cd, flags)
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);
}
int
cdsize(dev)
dev_t dev;
{
/* CD-ROMs are read-only. */
return -1;
}
int
cddump(dev, blkno, va, size)
dev_t dev;
daddr_t blkno;
caddr_t va;
size_t size;
{
/* Not implemented. */
return ENXIO;
}
#define dvd_copy_key(dst, src) bcopy((src), (dst), DVD_KEY_SIZE)
#define dvd_copy_challenge(dst, src) bcopy((src), (dst), DVD_CHALLENGE_SIZE)
int
dvd_auth(cd, a)
struct cd_softc *cd;
union dvd_authinfo *a;
{
struct scsi_generic cmd;
u_int8_t buf[20];
int error;
bzero(cmd.bytes, sizeof(cmd.bytes));
bzero(buf, sizeof(buf));
switch (a->type) {
case DVD_LU_SEND_AGID:
cmd.opcode = GPCMD_REPORT_KEY;
cmd.bytes[8] = 8;
cmd.bytes[9] = 0 | (0 << 6);
error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 8,
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
a->lsa.agid = buf[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 = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 16,
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
dvd_copy_challenge(a->lsc.chal, &buf[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 = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 12,
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
dvd_copy_key(a->lsk.key, &buf[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 = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 12,
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
a->lstk.cpm = (buf[4] >> 7) & 1;
a->lstk.cp_sec = (buf[4] >> 6) & 1;
a->lstk.cgms = (buf[4] >> 4) & 3;
dvd_copy_key(a->lstk.title_key, &buf[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 = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 8,
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
a->lsasf.asf = buf[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);
buf[1] = 14;
dvd_copy_challenge(&buf[4], a->hsc.chal);
error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 16,
CDRETRIES, 30000, NULL, SCSI_DATA_OUT);
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);
buf[1] = 10;
dvd_copy_key(&buf[4], a->hsk.key);
error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 12,
CDRETRIES, 30000, NULL, SCSI_DATA_OUT);
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 = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 16,
CDRETRIES, 30000, NULL, 0);
if (error)
return (error);
return (0);
default:
return (ENOTTY);
}
}
int
dvd_read_physical(cd, s)
struct cd_softc *cd;
union dvd_struct *s;
{
struct scsi_generic cmd;
u_int8_t buf[4 + 4 * 20], *bufp;
int error;
struct dvd_layer *layer;
int i;
bzero(cmd.bytes, sizeof(cmd.bytes));
bzero(buf, sizeof(buf));
cmd.opcode = GPCMD_READ_DVD_STRUCTURE;
cmd.bytes[6] = s->type;
_lto2b(sizeof(buf), &cmd.bytes[7]);
cmd.bytes[5] = s->physical.layer_num;
error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, sizeof(buf),
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
for (i = 0, bufp = &buf[4], layer = &s->physical.layer[0]; i < 4;
i++, bufp += 20, layer++) {
bzero(layer, 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);
}
int
dvd_read_copyright(cd, s)
struct cd_softc *cd;
union dvd_struct *s;
{
struct scsi_generic cmd;
u_int8_t buf[8];
int error;
bzero(cmd.bytes, sizeof(cmd.bytes));
bzero(buf, sizeof(buf));
cmd.opcode = GPCMD_READ_DVD_STRUCTURE;
cmd.bytes[6] = s->type;
_lto2b(sizeof(buf), &cmd.bytes[7]);
cmd.bytes[5] = s->copyright.layer_num;
error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, sizeof(buf),
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
s->copyright.cpst = buf[4];
s->copyright.rmi = buf[5];
return (0);
}
int
dvd_read_disckey(cd, s)
struct cd_softc *cd;
union dvd_struct *s;
{
struct scsi_generic cmd;
u_int8_t buf[4 + 2048];
int error;
bzero(cmd.bytes, sizeof(cmd.bytes));
bzero(buf, sizeof(buf));
cmd.opcode = GPCMD_READ_DVD_STRUCTURE;
cmd.bytes[6] = s->type;
_lto2b(sizeof(buf), &cmd.bytes[7]);
cmd.bytes[9] = s->disckey.agid << 6;
error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, sizeof(buf),
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
bcopy(&buf[4], s->disckey.value, 2048);
return (0);
}
int
dvd_read_bca(cd, s)
struct cd_softc *cd;
union dvd_struct *s;
{
struct scsi_generic cmd;
u_int8_t buf[4 + 188];
int error;
bzero(cmd.bytes, sizeof(cmd.bytes));
bzero(buf, sizeof(buf));
cmd.opcode = GPCMD_READ_DVD_STRUCTURE;
cmd.bytes[6] = s->type;
_lto2b(sizeof(buf), &cmd.bytes[7]);
error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, sizeof(buf),
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
s->bca.len = _2btol(&buf[0]);
if (s->bca.len < 12 || s->bca.len > 188)
return (EIO);
bcopy(&buf[4], s->bca.value, s->bca.len);
return (0);
}
int
dvd_read_manufact(cd, s)
struct cd_softc *cd;
union dvd_struct *s;
{
struct scsi_generic cmd;
u_int8_t buf[4 + 2048];
int error;
bzero(cmd.bytes, sizeof(cmd.bytes));
bzero(buf, sizeof(buf));
cmd.opcode = GPCMD_READ_DVD_STRUCTURE;
cmd.bytes[6] = s->type;
_lto2b(sizeof(buf), &cmd.bytes[7]);
error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, sizeof(buf),
CDRETRIES, 30000, NULL, SCSI_DATA_IN);
if (error)
return (error);
s->manufact.len = _2btol(&buf[0]);
if (s->manufact.len < 0 || s->manufact.len > 2048)
return (EIO);
bcopy(&buf[4], s->manufact.value, s->manufact.len);
return (0);
}
int
dvd_read_struct(cd, s)
struct cd_softc *cd;
union 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);
}
}
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