File: [local] / src / sys / scsi / cd.c (download)
Revision 1.266, Thu Sep 1 13:45:27 2022 UTC (21 months, 1 week ago) by krw
Branch: MAIN
CVS Tags: OPENBSD_7_5_BASE, OPENBSD_7_5, OPENBSD_7_4_BASE, OPENBSD_7_4, OPENBSD_7_3_BASE, OPENBSD_7_3, OPENBSD_7_2_BASE, OPENBSD_7_2, HEAD
Changes since 1.265: +1 -5 lines
Stop setting d_bbsize and d_sbsize. Nobody has paid
any attention for some time.
ok otto@ as part of larger diff
|
/* $OpenBSD: cd.c,v 1.266 2022/09/01 13:45:27 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/param.h>
#include <sys/systm.h>
#include <sys/timeout.h>
#include <sys/fcntl.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/pool.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/disklabel.h>
#include <sys/disk.h>
#include <sys/cdio.h>
#include <sys/conf.h>
#include <sys/scsiio.h>
#include <sys/dkio.h>
#include <sys/vnode.h>
#include <scsi/scsi_all.h>
#include <scsi/cd.h>
#include <scsi/scsi_debug.h>
#include <scsi/scsi_disk.h> /* rw_10 and start_stop come from there */
#include <scsi/scsiconf.h>
#include <ufs/ffs/fs.h> /* for BBSIZE and SBSIZE */
#define CDOUTSTANDING 4
#define MAXTRACK 99
#define CD_FRAMES 75
#define CD_SECS 60
struct cd_toc {
struct ioc_toc_header header;
struct cd_toc_entry entries[MAXTRACK+1]; /* One extra for the */
/* leadout */
};
int cdmatch(struct device *, void *, void *);
void cdattach(struct device *, struct device *, void *);
int cdactivate(struct device *, int);
int cddetach(struct device *, int);
struct cd_softc {
struct device sc_dev;
struct disk sc_dk;
int sc_flags;
#define CDF_DYING 0x40 /* dying, when deactivated */
struct scsi_link *sc_link; /* contains targ, lun, etc. */
struct cd_parms {
u_int32_t secsize;
u_int64_t disksize; /* total number sectors */
} params;
struct bufq sc_bufq;
struct scsi_xshandler sc_xsh;
};
void cdstart(struct scsi_xfer *);
void cd_buf_done(struct scsi_xfer *);
int cd_cmd_rw6(struct scsi_generic *, int, u_int64_t, u_int32_t);
int cd_cmd_rw10(struct scsi_generic *, int, u_int64_t, u_int32_t);
int cd_cmd_rw12(struct scsi_generic *, int, u_int64_t, u_int32_t);
void cdminphys(struct buf *);
int cdgetdisklabel(dev_t, struct cd_softc *, struct disklabel *, int);
int cd_setchan(struct cd_softc *, int, int, int, int, int);
int cd_getvol(struct cd_softc *cd, struct ioc_vol *, int);
int cd_setvol(struct cd_softc *, const struct ioc_vol *, int);
int cd_load_unload(struct cd_softc *, int, int);
int cd_set_pa_immed(struct cd_softc *, int);
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);
int cd_interpret_sense(struct scsi_xfer *);
u_int64_t cd_size(struct scsi_link *, int, u_int32_t *);
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 *);
#if defined(__macppc__)
int cd_eject(void);
#endif /* __macppc__ */
const struct cfattach cd_ca = {
sizeof(struct cd_softc), cdmatch, cdattach,
cddetach, cdactivate
};
struct cfdriver cd_cd = {
NULL, "cd", DV_DISK
};
const struct scsi_inquiry_pattern cd_patterns[] = {
{T_CDROM, T_REMOV,
"", "", ""},
{T_CDROM, T_FIXED,
"", "", ""},
{T_WORM, T_REMOV,
"", "", ""},
{T_WORM, T_FIXED,
"", "", ""},
{T_DIRECT, T_REMOV,
"NEC CD-ROM DRIVE:260", "", ""},
#if 0
{T_CDROM, T_REMOV, /* more luns */
"PIONEER ", "CD-ROM DRM-600 ", ""},
#endif /* 0 */
};
#define cdlookup(unit) (struct cd_softc *)disk_lookup(&cd_cd, (unit))
int
cdmatch(struct device *parent, void *match, void *aux)
{
struct scsi_attach_args *sa = aux;
struct scsi_inquiry_data *inq = &sa->sa_sc_link->inqdata;
int priority;
scsi_inqmatch(inq, cd_patterns, nitems(cd_patterns),
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(struct device *parent, struct device *self, void *aux)
{
struct cd_softc *sc = (struct cd_softc *)self;
struct scsi_attach_args *sa = aux;
struct scsi_link *link = sa->sa_sc_link;
SC_DEBUG(link, SDEV_DB2, ("cdattach:\n"));
/*
* Store information needed to contact our base driver
*/
sc->sc_link = link;
link->interpret_sense = cd_interpret_sense;
link->device_softc = sc;
if (link->openings > CDOUTSTANDING)
link->openings = CDOUTSTANDING;
/*
* Initialize disk structures.
*/
sc->sc_dk.dk_name = sc->sc_dev.dv_xname;
bufq_init(&sc->sc_bufq, BUFQ_DEFAULT);
printf("\n");
scsi_xsh_set(&sc->sc_xsh, link, cdstart);
/* Attach disk. */
sc->sc_dk.dk_flags = DKF_NOLABELREAD;
disk_attach(&sc->sc_dev, &sc->sc_dk);
}
int
cdactivate(struct device *self, int act)
{
struct cd_softc *sc = (struct cd_softc *)self;
switch (act) {
case DVACT_RESUME:
/*
* When resuming, hardware may have forgotten we locked it. So
* if there are any open partitions, lock the CD.
*/
if (sc->sc_dk.dk_openmask != 0)
scsi_prevent(sc->sc_link, PR_PREVENT,
SCSI_IGNORE_ILLEGAL_REQUEST |
SCSI_IGNORE_MEDIA_CHANGE |
SCSI_SILENT | SCSI_AUTOCONF);
break;
case DVACT_DEACTIVATE:
SET(sc->sc_flags, CDF_DYING);
scsi_xsh_del(&sc->sc_xsh);
break;
}
return 0;
}
int
cddetach(struct device *self, int flags)
{
struct cd_softc *sc = (struct cd_softc *)self;
bufq_drain(&sc->sc_bufq);
disk_gone(cdopen, self->dv_unit);
/* Detach disk. */
bufq_destroy(&sc->sc_bufq);
disk_detach(&sc->sc_dk);
return 0;
}
/*
* Open the device. Make sure the partition info is as up-to-date as can be.
*/
int
cdopen(dev_t dev, int flag, int fmt, struct proc *p)
{
struct scsi_link *link;
struct cd_softc *sc;
int error = 0, part, rawopen, unit;
unit = DISKUNIT(dev);
part = DISKPART(dev);
rawopen = (part == RAW_PART) && (fmt == S_IFCHR);
sc = cdlookup(unit);
if (sc == NULL)
return ENXIO;
if (ISSET(sc->sc_flags, CDF_DYING)) {
device_unref(&sc->sc_dev);
return ENXIO;
}
link = sc->sc_link;
SC_DEBUG(link, SDEV_DB1,
("cdopen: dev=0x%x (unit %d (of %d), partition %d)\n", dev, unit,
cd_cd.cd_ndevs, part));
if ((error = disk_lock(&sc->sc_dk)) != 0) {
device_unref(&sc->sc_dev);
return error;
}
if (sc->sc_dk.dk_openmask != 0) {
/*
* If any partition is open, but the disk has been invalidated,
* disallow further opens.
*/
if (!ISSET(link->flags, SDEV_MEDIA_LOADED)) {
if (rawopen)
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.
*/
/* Use cd_interpret_sense() now. */
SET(link->flags, SDEV_OPEN);
error = scsi_test_unit_ready(link, TEST_READY_RETRIES,
(rawopen ? SCSI_SILENT : 0) | SCSI_IGNORE_ILLEGAL_REQUEST |
SCSI_IGNORE_MEDIA_CHANGE);
/* Start the cd spinning if necessary. */
if (error == EIO)
error = scsi_start(link, SSS_START,
SCSI_IGNORE_ILLEGAL_REQUEST |
SCSI_IGNORE_MEDIA_CHANGE | SCSI_SILENT);
if (error) {
if (rawopen) {
error = 0;
goto out;
} else
goto bad;
}
/* Lock the cd in. */
error = scsi_prevent(link, PR_PREVENT,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE |
SCSI_SILENT);
if (error)
goto bad;
/* Load the physical device parameters. */
SET(link->flags, SDEV_MEDIA_LOADED);
if (cd_get_parms(sc, (rawopen ? SCSI_SILENT : 0) |
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE)) {
CLR(link->flags, SDEV_MEDIA_LOADED);
error = ENXIO;
goto bad;
}
SC_DEBUG(link, SDEV_DB3, ("Params loaded\n"));
/* Fabricate a disk label. */
cdgetdisklabel(dev, sc, sc->sc_dk.dk_label, 0);
SC_DEBUG(link, SDEV_DB3, ("Disklabel fabricated\n"));
}
out:
if ((error = disk_openpart(&sc->sc_dk, part, fmt, 1)) != 0)
goto bad;
SET(link->flags, SDEV_OPEN);
SC_DEBUG(link, SDEV_DB3, ("open complete\n"));
/* It's OK to fall through because dk_openmask is now non-zero. */
bad:
if (sc->sc_dk.dk_openmask == 0) {
scsi_prevent(link, PR_ALLOW,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE |
SCSI_SILENT);
CLR(link->flags, SDEV_OPEN | SDEV_MEDIA_LOADED);
}
disk_unlock(&sc->sc_dk);
device_unref(&sc->sc_dev);
return error;
}
/*
* Close the device. Only called if we are the last occurrence of an open
* device.
*/
int
cdclose(dev_t dev, int flag, int fmt, struct proc *p)
{
struct cd_softc *sc;
int part = DISKPART(dev);
sc = cdlookup(DISKUNIT(dev));
if (sc == NULL)
return ENXIO;
if (ISSET(sc->sc_flags, CDF_DYING)) {
device_unref(&sc->sc_dev);
return ENXIO;
}
disk_lock_nointr(&sc->sc_dk);
disk_closepart(&sc->sc_dk, part, fmt);
if (sc->sc_dk.dk_openmask == 0) {
/* XXXX Must wait for I/O to complete! */
scsi_prevent(sc->sc_link, PR_ALLOW,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY |
SCSI_SILENT);
CLR(sc->sc_link->flags, SDEV_OPEN | SDEV_MEDIA_LOADED);
if (ISSET(sc->sc_link->flags, SDEV_EJECTING)) {
scsi_start(sc->sc_link, SSS_STOP|SSS_LOEJ, 0);
CLR(sc->sc_link->flags, SDEV_EJECTING);
}
scsi_xsh_del(&sc->sc_xsh);
}
disk_unlock(&sc->sc_dk);
device_unref(&sc->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(struct buf *bp)
{
struct cd_softc *sc;
int s;
sc = cdlookup(DISKUNIT(bp->b_dev));
if (sc == NULL) {
bp->b_error = ENXIO;
goto bad;
}
if (ISSET(sc->sc_flags, CDF_DYING)) {
bp->b_error = ENXIO;
goto bad;
}
SC_DEBUG(sc->sc_link, SDEV_DB2, ("cdstrategy: %ld bytes @ blk %lld\n",
bp->b_bcount, (long long)bp->b_blkno));
/*
* If the device has been made invalid, error out
* maybe the media changed, or no media loaded
*/
if (!ISSET(sc->sc_link->flags, SDEV_MEDIA_LOADED)) {
bp->b_error = EIO;
goto bad;
}
/* Validate the request. */
if (bounds_check_with_label(bp, sc->sc_dk.dk_label) == -1)
goto done;
/* Place it in the queue of disk activities for this disk. */
bufq_queue(&sc->sc_bufq, bp);
/*
* Tell the device to get going on the transfer if it's
* not doing anything, otherwise just wait for completion
*/
scsi_xsh_add(&sc->sc_xsh);
device_unref(&sc->sc_dev);
return;
bad:
SET(bp->b_flags, B_ERROR);
bp->b_resid = bp->b_bcount;
done:
s = splbio();
biodone(bp);
splx(s);
if (sc != NULL)
device_unref(&sc->sc_dev);
}
int
cd_cmd_rw6(struct scsi_generic *generic, int read, u_int64_t secno,
u_int32_t nsecs)
{
struct scsi_rw *cmd = (struct scsi_rw *)generic;
cmd->opcode = read ? READ_COMMAND : WRITE_COMMAND;
_lto3b(secno, cmd->addr);
cmd->length = nsecs & 0xff;
return sizeof(*cmd);
}
int
cd_cmd_rw10(struct scsi_generic *generic, int read, u_int64_t secno,
u_int32_t nsecs)
{
struct scsi_rw_10 *cmd = (struct scsi_rw_10 *)generic;
cmd->opcode = read ? READ_10 : WRITE_10;
_lto4b(secno, cmd->addr);
_lto2b(nsecs, cmd->length);
return sizeof(*cmd);
}
int
cd_cmd_rw12(struct scsi_generic *generic, int read, u_int64_t secno,
u_int32_t nsecs)
{
struct scsi_rw_12 *cmd = (struct scsi_rw_12 *)generic;
cmd->opcode = read ? READ_12 : WRITE_12;
_lto4b(secno, cmd->addr);
_lto4b(nsecs, cmd->length);
return sizeof(*cmd);
}
/*
* 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 dequeues 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(struct scsi_xfer *xs)
{
struct scsi_link *link = xs->sc_link;
struct cd_softc *sc = link->device_softc;
struct buf *bp;
struct partition *p;
u_int64_t secno;
u_int32_t nsecs;
int read;
SC_DEBUG(link, SDEV_DB2, ("cdstart\n"));
if (ISSET(sc->sc_flags, CDF_DYING)) {
scsi_xs_put(xs);
return;
}
if (!ISSET(link->flags, SDEV_MEDIA_LOADED)) {
bufq_drain(&sc->sc_bufq);
scsi_xs_put(xs);
return;
}
bp = bufq_dequeue(&sc->sc_bufq);
if (bp == NULL) {
scsi_xs_put(xs);
return;
}
read = ISSET(bp->b_flags, B_READ);
SET(xs->flags, (read ? SCSI_DATA_IN : SCSI_DATA_OUT));
xs->timeout = 30000;
xs->data = bp->b_data;
xs->datalen = bp->b_bcount;
xs->done = cd_buf_done;
xs->cookie = bp;
xs->bp = bp;
p = &sc->sc_dk.dk_label->d_partitions[DISKPART(bp->b_dev)];
secno = DL_GETPOFFSET(p) + DL_BLKTOSEC(sc->sc_dk.dk_label, bp->b_blkno);
nsecs = howmany(bp->b_bcount, sc->sc_dk.dk_label->d_secsize);
if (!ISSET(link->flags, SDEV_ATAPI | SDEV_UMASS) &&
(SID_ANSII_REV(&link->inqdata) < SCSI_REV_2) &&
((secno & 0x1fffff) == secno) &&
((nsecs & 0xff) == nsecs))
xs->cmdlen = cd_cmd_rw6(&xs->cmd, read, secno, nsecs);
else if (((secno & 0xffffffff) == secno) &&
((nsecs & 0xffff) == nsecs))
xs->cmdlen = cd_cmd_rw10(&xs->cmd, read, secno, nsecs);
else
xs->cmdlen = cd_cmd_rw12(&xs->cmd, read, secno, nsecs);
disk_busy(&sc->sc_dk);
scsi_xs_exec(xs);
/* Move onto the next io. */
if (bufq_peek(&sc->sc_bufq))
scsi_xsh_add(&sc->sc_xsh);
}
void
cd_buf_done(struct scsi_xfer *xs)
{
struct cd_softc *sc = xs->sc_link->device_softc;
struct buf *bp = xs->cookie;
int error, s;
switch (xs->error) {
case XS_NOERROR:
bp->b_error = 0;
CLR(bp->b_flags, B_ERROR);
bp->b_resid = xs->resid;
break;
case XS_SENSE:
case XS_SHORTSENSE:
SC_DEBUG_SENSE(xs);
error = cd_interpret_sense(xs);
if (error == 0) {
bp->b_error = 0;
CLR(bp->b_flags, B_ERROR);
bp->b_resid = xs->resid;
break;
}
if (error != ERESTART)
xs->retries = 0;
goto retry;
case XS_BUSY:
if (xs->retries) {
if (scsi_delay(xs, 1) != ERESTART)
xs->retries = 0;
}
goto retry;
case XS_TIMEOUT:
retry:
if (xs->retries--) {
scsi_xs_exec(xs);
return;
}
/* FALLTHROUGH */
default:
bp->b_error = EIO;
SET(bp->b_flags, B_ERROR);
bp->b_resid = bp->b_bcount;
break;
}
disk_unbusy(&sc->sc_dk, bp->b_bcount - xs->resid, bp->b_blkno,
bp->b_flags & B_READ);
s = splbio();
biodone(bp);
splx(s);
scsi_xs_put(xs);
}
void
cdminphys(struct buf *bp)
{
struct scsi_link *link;
struct cd_softc *sc;
long max;
sc = cdlookup(DISKUNIT(bp->b_dev));
if (sc == NULL)
return;
link = sc->sc_link;
/*
* 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 setting 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 (!ISSET(link->flags, SDEV_ATAPI | SDEV_UMASS) &&
SID_ANSII_REV(&link->inqdata) < SCSI_REV_2) {
max = sc->sc_dk.dk_label->d_secsize * 0xff;
if (bp->b_bcount > max)
bp->b_bcount = max;
}
if (link->bus->sb_adapter->dev_minphys != NULL)
(*link->bus->sb_adapter->dev_minphys)(bp, link);
else
minphys(bp);
device_unref(&sc->sc_dev);
}
int
cdread(dev_t dev, struct uio *uio, int ioflag)
{
return physio(cdstrategy, dev, B_READ, cdminphys, uio);
}
int
cdwrite(dev_t dev, struct uio *uio, int ioflag)
{
return physio(cdstrategy, dev, B_WRITE, cdminphys, uio);
}
/*
* Perform special action on behalf of the user.
* Knows about the internals of this device
*/
int
cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
{
struct cd_softc *sc;
struct disklabel *lp;
int part = DISKPART(dev);
int error = 0;
sc = cdlookup(DISKUNIT(dev));
if (sc == NULL)
return ENXIO;
if (ISSET(sc->sc_flags, CDF_DYING)) {
device_unref(&sc->sc_dev);
return ENXIO;
}
SC_DEBUG(sc->sc_link, SDEV_DB2, ("cdioctl 0x%lx\n", cmd));
/*
* If the device is not valid.. abandon ship
*/
if (!ISSET(sc->sc_link->flags, SDEV_MEDIA_LOADED)) {
switch (cmd) {
case DIOCLOCK:
case DIOCEJECT:
case SCIOCIDENTIFY:
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 (!ISSET(sc->sc_link->flags, SDEV_OPEN))
error = ENODEV;
else
error = EIO;
goto exit;
}
}
switch (cmd) {
case DIOCRLDINFO:
lp = malloc(sizeof(*lp), M_TEMP, M_WAITOK);
cdgetdisklabel(dev, sc, lp, 0);
memcpy(sc->sc_dk.dk_label, lp, sizeof(*lp));
free(lp, M_TEMP, sizeof(*lp));
break;
case DIOCGPDINFO:
cdgetdisklabel(dev, sc, (struct disklabel *)addr, 1);
break;
case DIOCGDINFO:
*(struct disklabel *)addr = *(sc->sc_dk.dk_label);
break;
case DIOCGPART:
((struct partinfo *)addr)->disklab = sc->sc_dk.dk_label;
((struct partinfo *)addr)->part =
&sc->sc_dk.dk_label->d_partitions[DISKPART(dev)];
break;
case DIOCWDINFO:
case DIOCSDINFO:
if (!ISSET(flag, FWRITE)) {
error = EBADF;
break;
}
if ((error = disk_lock(&sc->sc_dk)) != 0)
break;
error = setdisklabel(sc->sc_dk.dk_label,
(struct disklabel *)addr, sc->sc_dk.dk_openmask);
if (error == 0) {
}
disk_unlock(&sc->sc_dk);
break;
case CDIOCPLAYTRACKS: {
struct ioc_play_track *args = (struct ioc_play_track *)addr;
if ((error = cd_set_pa_immed(sc, 0)) != 0)
break;
error = cd_play_tracks(sc, 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_set_pa_immed(sc, 0)) != 0)
break;
error = cd_play_msf(sc, 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_set_pa_immed(sc, 0)) != 0)
break;
error = cd_play(sc, 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;
}
data = dma_alloc(sizeof(*data), PR_WAITOK);
error = cd_read_subchannel(sc, args->address_format,
args->data_format, args->track, data, len);
if (error) {
dma_free(data, sizeof(*data));
break;
}
len = min(len, _2btol(data->header.data_len) +
sizeof(struct cd_sub_channel_header));
error = copyout(data, args->data, len);
dma_free(data, sizeof(*data));
break;
}
case CDIOREADTOCHEADER: {
struct ioc_toc_header *th;
th = dma_alloc(sizeof(*th), PR_WAITOK);
if ((error = cd_read_toc(sc, 0, 0, th, sizeof(*th), 0)) != 0) {
dma_free(th, sizeof(*th));
break;
}
if (ISSET(sc->sc_link->quirks, ADEV_LITTLETOC))
th->len = letoh16(th->len);
else
th->len = betoh16(th->len);
if (th->len > 0)
memcpy(addr, th, sizeof(*th));
else
error = EIO;
dma_free(th, 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;
toc = dma_alloc(sizeof(*toc), PR_WAITOK | PR_ZERO);
th = &toc->header;
if (len > sizeof(toc->entries) ||
len < sizeof(struct cd_toc_entry)) {
dma_free(toc, sizeof(*toc));
error = EINVAL;
break;
}
error = cd_read_toc(sc, te->address_format, te->starting_track,
toc, len + sizeof(struct ioc_toc_header), 0);
if (error) {
dma_free(toc, sizeof(*toc));
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 (ISSET(sc->sc_link->quirks,
ADEV_LITTLETOC)) {
#if BYTE_ORDER == BIG_ENDIAN
swap16_multi((u_int16_t *)&cte->addr,
sizeof(cte->addr) / 2);
#endif /* BYTE_ORDER == BIG_ENDIAN */
} else
cte->addr.lba = betoh32(cte->addr.lba);
}
if (ISSET(sc->sc_link->quirks, ADEV_LITTLETOC)) {
th->len = letoh16(th->len);
} else
th->len = betoh16(th->len);
len = min(len, th->len - (sizeof(th->starting_track) +
sizeof(th->ending_track)));
error = copyout(toc->entries, te->data, len);
dma_free(toc, sizeof(*toc));
break;
}
case CDIOREADMSADDR: {
struct cd_toc *toc;
int sessno = *(int *)addr;
struct cd_toc_entry *cte;
if (sessno != 0) {
error = EINVAL;
break;
}
toc = dma_alloc(sizeof(*toc), PR_WAITOK | PR_ZERO);
error = cd_read_toc(sc, 0, 0, toc,
sizeof(struct ioc_toc_header) + sizeof(struct cd_toc_entry),
0x40 /* control word for "get MS info" */);
if (error) {
dma_free(toc, sizeof(*toc));
break;
}
cte = &toc->entries[0];
if (ISSET(sc->sc_link->quirks, ADEV_LITTLETOC)) {
#if BYTE_ORDER == BIG_ENDIAN
swap16_multi((u_int16_t *)&cte->addr,
sizeof(cte->addr) / 2);
#endif /* BYTE_ORDER == BIG_ENDIAN */
} else
cte->addr.lba = betoh32(cte->addr.lba);
if (ISSET(sc->sc_link->quirks, ADEV_LITTLETOC))
toc->header.len = letoh16(toc->header.len);
else
toc->header.len = betoh16(toc->header.len);
*(int *)addr = (toc->header.len >= 10 && cte->track > 1) ?
cte->addr.lba : 0;
dma_free(toc, sizeof(*toc));
break;
}
case CDIOCSETPATCH: {
struct ioc_patch *arg = (struct ioc_patch *)addr;
error = cd_setchan(sc, 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_getvol(sc, arg, 0);
break;
}
case CDIOCSETVOL: {
struct ioc_vol *arg = (struct ioc_vol *)addr;
error = cd_setvol(sc, arg, 0);
break;
}
case CDIOCSETMONO:
error = cd_setchan(sc, BOTH_CHANNEL, BOTH_CHANNEL, MUTE_CHANNEL,
MUTE_CHANNEL, 0);
break;
case CDIOCSETSTEREO:
error = cd_setchan(sc, LEFT_CHANNEL, RIGHT_CHANNEL,
MUTE_CHANNEL, MUTE_CHANNEL, 0);
break;
case CDIOCSETMUTE:
error = cd_setchan(sc, MUTE_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL,
MUTE_CHANNEL, 0);
break;
case CDIOCSETLEFT:
error = cd_setchan(sc, LEFT_CHANNEL, LEFT_CHANNEL, MUTE_CHANNEL,
MUTE_CHANNEL, 0);
break;
case CDIOCSETRIGHT:
error = cd_setchan(sc, RIGHT_CHANNEL, RIGHT_CHANNEL,
MUTE_CHANNEL, MUTE_CHANNEL, 0);
break;
case CDIOCRESUME:
error = cd_pause(sc, 1);
break;
case CDIOCPAUSE:
error = cd_pause(sc, 0);
break;
case CDIOCSTART:
error = scsi_start(sc->sc_link, SSS_START, 0);
break;
case CDIOCSTOP:
error = scsi_start(sc->sc_link, SSS_STOP, 0);
break;
close_tray:
case CDIOCCLOSE:
error = scsi_start(sc->sc_link, SSS_START|SSS_LOEJ,
SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE);
break;
case MTIOCTOP:
if (((struct mtop *)addr)->mt_op == MTRETEN)
goto close_tray;
if (((struct mtop *)addr)->mt_op != MTOFFL) {
error = EIO;
break;
}
/* FALLTHROUGH */
case CDIOCEJECT: /* FALLTHROUGH */
case DIOCEJECT:
SET(sc->sc_link->flags, SDEV_EJECTING);
break;
case CDIOCALLOW:
error = scsi_prevent(sc->sc_link, PR_ALLOW, 0);
break;
case CDIOCPREVENT:
error = scsi_prevent(sc->sc_link, PR_PREVENT, 0);
break;
case DIOCLOCK:
error = scsi_prevent(sc->sc_link,
(*(int *)addr) ? PR_PREVENT : PR_ALLOW, 0);
break;
case CDIOCSETDEBUG:
SET(sc->sc_link->flags, SDEV_DB1 | SDEV_DB2);
break;
case CDIOCCLRDEBUG:
CLR(sc->sc_link->flags, SDEV_DB1 | SDEV_DB2);
break;
case CDIOCRESET:
case SCIOCRESET:
error = cd_reset(sc);
break;
case CDIOCLOADUNLOAD: {
struct ioc_load_unload *args = (struct ioc_load_unload *)addr;
error = cd_load_unload(sc, args->options, args->slot);
break;
}
case DVD_AUTH:
error = dvd_auth(sc, (union dvd_authinfo *)addr);
break;
case DVD_READ_STRUCT:
error = dvd_read_struct(sc, (union dvd_struct *)addr);
break;
default:
if (DISKPART(dev) != RAW_PART) {
error = ENOTTY;
break;
}
error = scsi_do_ioctl(sc->sc_link, cmd, addr, flag);
break;
}
exit:
device_unref(&sc->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
*/
int
cdgetdisklabel(dev_t dev, struct cd_softc *sc, struct disklabel *lp,
int spoofonly)
{
struct cd_toc *toc;
int tocidx, n, audioonly = 1;
bzero(lp, sizeof(struct disklabel));
lp->d_secsize = sc->params.secsize;
lp->d_ntracks = 1;
lp->d_nsectors = 100;
lp->d_secpercyl = 100;
lp->d_ncylinders = (sc->params.disksize / 100) + 1;
if (ISSET(sc->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));
DL_SETDSIZE(lp, sc->params.disksize);
lp->d_version = 1;
lp->d_magic = DISKMAGIC;
lp->d_magic2 = DISKMAGIC;
lp->d_checksum = dkcksum(lp);
toc = dma_alloc(sizeof(*toc), PR_WAITOK | PR_ZERO);
if (cd_load_toc(sc, toc, CD_LBA_FORMAT)) {
audioonly = 0; /* No valid TOC found == not an audio CD. */
goto done;
}
n = toc->header.ending_track - toc->header.starting_track + 1;
for (tocidx = 0; tocidx < n; tocidx++)
if (toc->entries[tocidx].control & 4) {
audioonly = 0; /* Found a non-audio track. */
goto done;
}
done:
dma_free(toc, sizeof(*toc));
if (audioonly)
return 0;
return readdisklabel(DISKLABELDEV(dev), cdstrategy, lp, spoofonly);
}
int
cd_setchan(struct cd_softc *sc, int p0, int p1, int p2, int p3, int flags)
{
union scsi_mode_sense_buf *data;
struct cd_audio_page *audio = NULL;
int error, big;
data = dma_alloc(sizeof(*data), PR_NOWAIT);
if (data == NULL)
return ENOMEM;
error = scsi_do_mode_sense(sc->sc_link, AUDIO_PAGE, data,
(void **)&audio, sizeof(*audio), flags, &big);
if (error == 0 && audio == NULL)
error = EIO;
if (error == 0) {
audio->port[LEFT_PORT].channels = p0;
audio->port[RIGHT_PORT].channels = p1;
audio->port[2].channels = p2;
audio->port[3].channels = p3;
if (big)
error = scsi_mode_select_big(sc->sc_link, SMS_PF,
&data->hdr_big, flags, 20000);
else
error = scsi_mode_select(sc->sc_link, SMS_PF,
&data->hdr, flags, 20000);
}
dma_free(data, sizeof(*data));
return error;
}
int
cd_getvol(struct cd_softc *sc, struct ioc_vol *arg, int flags)
{
union scsi_mode_sense_buf *data;
struct cd_audio_page *audio = NULL;
int big, error;
data = dma_alloc(sizeof(*data), PR_NOWAIT);
if (data == NULL)
return ENOMEM;
error = scsi_do_mode_sense(sc->sc_link, AUDIO_PAGE, data,
(void **)&audio, sizeof(*audio), flags, &big);
if (error == 0 && audio == NULL)
error = EIO;
if (error == 0) {
arg->vol[0] = audio->port[0].volume;
arg->vol[1] = audio->port[1].volume;
arg->vol[2] = audio->port[2].volume;
arg->vol[3] = audio->port[3].volume;
}
dma_free(data, sizeof(*data));
return 0;
}
int
cd_setvol(struct cd_softc *sc, const struct ioc_vol *arg, int flags)
{
union scsi_mode_sense_buf *data;
struct cd_audio_page *audio = NULL;
u_int8_t mask_volume[4];
int error, big;
data = dma_alloc(sizeof(*data), PR_NOWAIT);
if (data == NULL)
return ENOMEM;
error = scsi_do_mode_sense(sc->sc_link,
AUDIO_PAGE | SMS_PAGE_CTRL_CHANGEABLE, data, (void **)&audio,
sizeof(*audio), flags, &big);
if (error == 0 && audio == NULL)
error = EIO;
if (error != 0) {
dma_free(data, sizeof(*data));
return error;
}
mask_volume[0] = audio->port[0].volume;
mask_volume[1] = audio->port[1].volume;
mask_volume[2] = audio->port[2].volume;
mask_volume[3] = audio->port[3].volume;
error = scsi_do_mode_sense(sc->sc_link, AUDIO_PAGE, data,
(void **)&audio, sizeof(*audio), flags, &big);
if (error == 0 && audio == NULL)
error = EIO;
if (error != 0) {
dma_free(data, sizeof(*data));
return error;
}
audio->port[0].volume = arg->vol[0] & mask_volume[0];
audio->port[1].volume = arg->vol[1] & mask_volume[1];
audio->port[2].volume = arg->vol[2] & mask_volume[2];
audio->port[3].volume = arg->vol[3] & mask_volume[3];
if (big)
error = scsi_mode_select_big(sc->sc_link, SMS_PF,
&data->hdr_big, flags, 20000);
else
error = scsi_mode_select(sc->sc_link, SMS_PF,
&data->hdr, flags, 20000);
dma_free(data, sizeof(*data));
return error;
}
int
cd_load_unload(struct cd_softc *sc, int options, int slot)
{
struct scsi_load_unload *cmd;
struct scsi_xfer *xs;
int error;
xs = scsi_xs_get(sc->sc_link, 0);
if (xs == NULL)
return ENOMEM;
xs->cmdlen = sizeof(*cmd);
xs->timeout = 200000;
cmd = (struct scsi_load_unload *)&xs->cmd;
cmd->opcode = LOAD_UNLOAD;
cmd->options = options; /* ioctl uses ATAPI values */
cmd->slot = slot;
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
return error;
}
int
cd_set_pa_immed(struct cd_softc *sc, int flags)
{
union scsi_mode_sense_buf *data;
struct cd_audio_page *audio = NULL;
int error, oflags, big;
if (ISSET(sc->sc_link->flags, SDEV_ATAPI))
/* XXX Noop? */
return 0;
data = dma_alloc(sizeof(*data), PR_NOWAIT);
if (data == NULL)
return ENOMEM;
error = scsi_do_mode_sense(sc->sc_link, AUDIO_PAGE, data,
(void **)&audio, sizeof(*audio), flags, &big);
if (error == 0 && audio == NULL)
error = EIO;
if (error == 0) {
oflags = audio->flags;
CLR(audio->flags, CD_PA_SOTC);
SET(audio->flags, CD_PA_IMMED);
if (audio->flags != oflags) {
if (big)
error = scsi_mode_select_big(sc->sc_link,
SMS_PF, &data->hdr_big, flags, 20000);
else
error = scsi_mode_select(sc->sc_link, SMS_PF,
&data->hdr, flags, 20000);
}
}
dma_free(data, sizeof(*data));
return error;
}
/*
* Get scsi driver to send a "start playing" command
*/
int
cd_play(struct cd_softc *sc, int secno, int nsecs)
{
struct scsi_play *cmd;
struct scsi_xfer *xs;
int error;
xs = scsi_xs_get(sc->sc_link, 0);
if (xs == NULL)
return ENOMEM;
xs->cmdlen = sizeof(*cmd);
xs->timeout = 200000;
cmd = (struct scsi_play *)&xs->cmd;
cmd->opcode = PLAY;
_lto4b(secno, cmd->blk_addr);
_lto2b(nsecs, cmd->xfer_len);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
return error;
}
/*
* Get scsi driver to send a "start playing" command
*/
int
cd_play_tracks(struct cd_softc *sc, int strack, int sindex, int etrack,
int eindex)
{
struct cd_toc *toc;
int error;
u_char endf, ends, endm;
if (!etrack)
return EIO;
if (strack > etrack)
return EINVAL;
toc = dma_alloc(sizeof(*toc), PR_WAITOK | PR_ZERO);
if ((error = cd_load_toc(sc, toc, CD_MSF_FORMAT)) != 0)
goto done;
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) {
error = EINVAL;
goto done;
}
/*
* 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) {
error = EINVAL;
goto done;
}
}
}
error = cd_play_msf(sc, toc->entries[strack].addr.msf.minute,
toc->entries[strack].addr.msf.second,
toc->entries[strack].addr.msf.frame,
endm, ends, endf);
done:
dma_free(toc, sizeof(*toc));
return error;
}
/*
* Get scsi driver to send a "play msf" command
*/
int
cd_play_msf(struct cd_softc *sc, int startm, int starts, int startf, int endm,
int ends, int endf)
{
struct scsi_play_msf *cmd;
struct scsi_xfer *xs;
int error;
xs = scsi_xs_get(sc->sc_link, 0);
if (xs == NULL)
return ENOMEM;
xs->cmdlen = sizeof(*cmd);
xs->timeout = 20000;
cmd = (struct scsi_play_msf *)&xs->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;
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
return error;
}
/*
* Get scsi driver to send a "start up" command
*/
int
cd_pause(struct cd_softc *sc, int go)
{
struct scsi_pause *cmd;
struct scsi_xfer *xs;
int error;
xs = scsi_xs_get(sc->sc_link, 0);
if (xs == NULL)
return ENOMEM;
xs->cmdlen = sizeof(*cmd);
xs->timeout = 2000;
cmd = (struct scsi_pause *)&xs->cmd;
cmd->opcode = PAUSE;
cmd->resume = go;
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
return error;
}
/*
* Get scsi driver to send a "RESET" command
*/
int
cd_reset(struct cd_softc *sc)
{
struct scsi_xfer *xs;
int error;
xs = scsi_xs_get(sc->sc_link, SCSI_RESET);
if (xs == NULL)
return ENOMEM;
xs->timeout = 2000;
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
return error;
}
/*
* Read subchannel
*/
int
cd_read_subchannel(struct cd_softc *sc, int mode, int format, int track,
struct cd_sub_channel_info *data, int len)
{
struct scsi_read_subchannel *cmd;
struct scsi_xfer *xs;
int error;
xs = scsi_xs_get(sc->sc_link, SCSI_DATA_IN | SCSI_SILENT);
if (xs == NULL)
return ENOMEM;
xs->cmdlen = sizeof(*cmd);
xs->data = (void *)data;
xs->datalen = len;
xs->timeout = 5000;
cmd = (struct scsi_read_subchannel *)&xs->cmd;
cmd->opcode = READ_SUBCHANNEL;
if (mode == CD_MSF_FORMAT)
SET(cmd->byte2, CD_MSF);
cmd->byte3 = SRS_SUBQ;
cmd->subchan_format = format;
cmd->track = track;
_lto2b(len, cmd->data_len);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
return error;
}
/*
* Read table of contents
*/
int
cd_read_toc(struct cd_softc *sc, int mode, int start, void *data, int len,
int control)
{
struct scsi_read_toc *cmd;
struct scsi_xfer *xs;
int error;
xs = scsi_xs_get(sc->sc_link, SCSI_DATA_IN |
SCSI_IGNORE_ILLEGAL_REQUEST);
if (xs == NULL)
return ENOMEM;
xs->cmdlen = sizeof(*cmd);
xs->data = data;
xs->datalen = len;
xs->timeout = 5000;
bzero(data, len);
cmd = (struct scsi_read_toc *)&xs->cmd;
cmd->opcode = READ_TOC;
if (mode == CD_MSF_FORMAT)
SET(cmd->byte2, CD_MSF);
cmd->from_track = start;
_lto2b(len, cmd->data_len);
cmd->control = control;
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
return error;
}
int
cd_load_toc(struct cd_softc *sc, struct cd_toc *toc, int fmt)
{
int n, len, error;
error = cd_read_toc(sc, 0, 0, toc, sizeof(toc->header), 0);
if (error == 0) {
if (toc->header.ending_track < toc->header.starting_track)
return EIO;
/* +2 to account for leading out track. */
n = toc->header.ending_track - toc->header.starting_track + 2;
len = n * sizeof(struct cd_toc_entry) + sizeof(toc->header);
error = cd_read_toc(sc, fmt, 0, toc, len, 0);
}
return error;
}
/*
* 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(struct cd_softc *sc, int flags)
{
/* Reasonable defaults for drives that don't support READ_CAPACITY */
sc->params.secsize = 2048;
sc->params.disksize = 400000;
if (ISSET(sc->sc_link->quirks, ADEV_NOCAPACITY))
return 0;
sc->params.disksize = cd_size(sc->sc_link, flags, &sc->params.secsize);
if ((sc->params.secsize < 512) ||
((sc->params.secsize & 511) != 0))
sc->params.secsize = 2048; /* some drives lie ! */
if (sc->params.disksize < 100)
sc->params.disksize = 400000;
return 0;
}
daddr_t
cdsize(dev_t dev)
{
/* CD-ROMs are read-only. */
return -1;
}
int
cddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size)
{
/* Not implemented. */
return ENXIO;
}
#define dvd_copy_key(dst, src) memcpy((dst), (src), DVD_KEY_SIZE)
#define dvd_copy_challenge(dst, src) memcpy((dst), (src), DVD_CHALLENGE_SIZE)
#define DVD_AUTH_BUFSIZE 20
int
dvd_auth(struct cd_softc *sc, union dvd_authinfo *a)
{
struct scsi_generic *cmd;
struct scsi_xfer *xs;
u_int8_t *buf;
int error;
buf = dma_alloc(DVD_AUTH_BUFSIZE, PR_WAITOK | PR_ZERO);
if (buf == NULL)
return ENOMEM;
xs = scsi_xs_get(sc->sc_link, 0);
if (xs == NULL) {
error = ENOMEM;
goto done;
}
xs->cmdlen = sizeof(*cmd);
xs->timeout = 30000;
xs->data = buf;
cmd = &xs->cmd;
switch (a->type) {
case DVD_LU_SEND_AGID:
cmd->opcode = GPCMD_REPORT_KEY;
cmd->bytes[8] = 8;
cmd->bytes[9] = 0 | (0 << 6);
xs->datalen = 8;
SET(xs->flags, SCSI_DATA_IN);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0)
a->lsa.agid = buf[7] >> 6;
break;
case DVD_LU_SEND_CHALLENGE:
cmd->opcode = GPCMD_REPORT_KEY;
cmd->bytes[8] = 16;
cmd->bytes[9] = 1 | (a->lsc.agid << 6);
xs->datalen = 16;
SET(xs->flags, SCSI_DATA_IN);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0)
dvd_copy_challenge(a->lsc.chal, &buf[4]);
break;
case DVD_LU_SEND_KEY1:
cmd->opcode = GPCMD_REPORT_KEY;
cmd->bytes[8] = 12;
cmd->bytes[9] = 2 | (a->lsk.agid << 6);
xs->datalen = 12;
SET(xs->flags, SCSI_DATA_IN);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0)
dvd_copy_key(a->lsk.key, &buf[4]);
break;
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);
xs->datalen = 12;
SET(xs->flags, SCSI_DATA_IN);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0) {
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]);
}
break;
case DVD_LU_SEND_ASF:
cmd->opcode = GPCMD_REPORT_KEY;
cmd->bytes[8] = 8;
cmd->bytes[9] = 5 | (a->lsasf.agid << 6);
xs->datalen = 8;
SET(xs->flags, SCSI_DATA_IN);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0)
a->lsasf.asf = buf[7] & 1;
break;
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);
xs->datalen = 16;
SET(xs->flags, SCSI_DATA_OUT);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0)
a->type = DVD_LU_SEND_KEY1;
break;
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);
xs->datalen = 12;
SET(xs->flags, SCSI_DATA_OUT);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0)
a->type = DVD_AUTH_ESTABLISHED;
else
a->type = DVD_AUTH_FAILURE;
break;
case DVD_INVALIDATE_AGID:
cmd->opcode = GPCMD_REPORT_KEY;
cmd->bytes[9] = 0x3f | (a->lsa.agid << 6);
xs->data = NULL;
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
break;
case DVD_LU_SEND_RPC_STATE:
cmd->opcode = GPCMD_REPORT_KEY;
cmd->bytes[8] = 8;
cmd->bytes[9] = 8 | (0 << 6);
xs->datalen = 8;
SET(xs->flags, SCSI_DATA_IN);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0) {
a->lrpcs.type = (buf[4] >> 6) & 3;
a->lrpcs.vra = (buf[4] >> 3) & 7;
a->lrpcs.ucca = (buf[4]) & 7;
a->lrpcs.region_mask = buf[5];
a->lrpcs.rpc_scheme = buf[6];
}
break;
case DVD_HOST_SEND_RPC_STATE:
cmd->opcode = GPCMD_SEND_KEY;
cmd->bytes[8] = 8;
cmd->bytes[9] = 6 | (0 << 6);
buf[1] = 6;
buf[4] = a->hrpcs.pdrc;
xs->datalen = 8;
SET(xs->flags, SCSI_DATA_OUT);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
break;
default:
scsi_xs_put(xs);
error = ENOTTY;
break;
}
done:
dma_free(buf, DVD_AUTH_BUFSIZE);
return error;
}
#define DVD_READ_PHYSICAL_BUFSIZE (4 + 4 * 20)
int
dvd_read_physical(struct cd_softc *sc, union dvd_struct *s)
{
struct scsi_generic *cmd;
struct dvd_layer *layer;
struct scsi_xfer *xs;
u_int8_t *buf, *bufp;
int error, i;
buf = dma_alloc(DVD_READ_PHYSICAL_BUFSIZE, PR_WAITOK | PR_ZERO);
if (buf == NULL)
return ENOMEM;
xs = scsi_xs_get(sc->sc_link, SCSI_DATA_IN);
if (xs == NULL) {
error = ENOMEM;
goto done;
}
xs->cmdlen = sizeof(*cmd);
xs->data = buf;
xs->datalen = DVD_READ_PHYSICAL_BUFSIZE;
xs->timeout = 30000;
cmd = &xs->cmd;
cmd->opcode = GPCMD_READ_DVD_STRUCTURE;
cmd->bytes[6] = s->type;
_lto2b(xs->datalen, &cmd->bytes[7]);
cmd->bytes[5] = s->physical.layer_num;
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0) {
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;
}
}
done:
dma_free(buf, DVD_READ_PHYSICAL_BUFSIZE);
return error;
}
#define DVD_READ_COPYRIGHT_BUFSIZE 8
int
dvd_read_copyright(struct cd_softc *sc, union dvd_struct *s)
{
struct scsi_generic *cmd;
struct scsi_xfer *xs;
u_int8_t *buf;
int error;
buf = dma_alloc(DVD_READ_COPYRIGHT_BUFSIZE, PR_WAITOK | PR_ZERO);
if (buf == NULL)
return ENOMEM;
xs = scsi_xs_get(sc->sc_link, SCSI_DATA_IN);
if (xs == NULL) {
error = ENOMEM;
goto done;
}
xs->cmdlen = sizeof(*cmd);
xs->data = buf;
xs->datalen = DVD_READ_COPYRIGHT_BUFSIZE;
xs->timeout = 30000;
cmd = &xs->cmd;
cmd->opcode = GPCMD_READ_DVD_STRUCTURE;
cmd->bytes[6] = s->type;
_lto2b(xs->datalen, &cmd->bytes[7]);
cmd->bytes[5] = s->copyright.layer_num;
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0) {
s->copyright.cpst = buf[4];
s->copyright.rmi = buf[5];
}
done:
dma_free(buf, DVD_READ_COPYRIGHT_BUFSIZE);
return error;
}
int
dvd_read_disckey(struct cd_softc *sc, union dvd_struct *s)
{
struct scsi_read_dvd_structure_data *buf;
struct scsi_read_dvd_structure *cmd;
struct scsi_xfer *xs;
int error;
buf = dma_alloc(sizeof(*buf), PR_WAITOK | PR_ZERO);
if (buf == NULL)
return ENOMEM;
xs = scsi_xs_get(sc->sc_link, SCSI_DATA_IN);
if (xs == NULL) {
error = ENOMEM;
goto done;
}
xs->cmdlen = sizeof(*cmd);
xs->data = (void *)buf;
xs->datalen = sizeof(*buf);
xs->timeout = 30000;
cmd = (struct scsi_read_dvd_structure *)&xs->cmd;
cmd->opcode = GPCMD_READ_DVD_STRUCTURE;
cmd->format = s->type;
cmd->agid = s->disckey.agid << 6;
_lto2b(xs->datalen, cmd->length);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0)
memcpy(s->disckey.value, buf->data, sizeof(s->disckey.value));
done:
dma_free(buf, sizeof(*buf));
return error;
}
#define DVD_READ_BCA_BUFLEN (4 + 188)
int
dvd_read_bca(struct cd_softc *sc, union dvd_struct *s)
{
struct scsi_generic *cmd;
struct scsi_xfer *xs;
u_int8_t *buf;
int error;
buf = dma_alloc(DVD_READ_BCA_BUFLEN, PR_WAITOK | PR_ZERO);
if (buf == NULL)
return ENOMEM;
xs = scsi_xs_get(sc->sc_link, SCSI_DATA_IN);
if (xs == NULL) {
error = ENOMEM;
goto done;
}
xs->cmdlen = sizeof(*cmd);
xs->data = buf;
xs->datalen = DVD_READ_BCA_BUFLEN;
xs->timeout = 30000;
cmd = &xs->cmd;
cmd->opcode = GPCMD_READ_DVD_STRUCTURE;
cmd->bytes[6] = s->type;
_lto2b(xs->datalen, &cmd->bytes[7]);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0) {
s->bca.len = _2btol(&buf[0]);
if (s->bca.len < 12 || s->bca.len > 188)
return EIO;
memcpy(s->bca.value, &buf[4], s->bca.len);
}
done:
dma_free(buf, DVD_READ_BCA_BUFLEN);
return error;
}
int
dvd_read_manufact(struct cd_softc *sc, union dvd_struct *s)
{
struct scsi_read_dvd_structure_data *buf;
struct scsi_read_dvd_structure *cmd;
struct scsi_xfer *xs;
int error;
buf = dma_alloc(sizeof(*buf), PR_WAITOK | PR_ZERO);
if (buf == NULL)
return ENOMEM;
xs = scsi_xs_get(sc->sc_link, SCSI_DATA_IN);
if (xs == NULL) {
error = ENOMEM;
goto done;
}
xs->cmdlen = sizeof(*cmd);
xs->data = (void *)buf;
xs->datalen = sizeof(*buf);
xs->timeout = 30000;
cmd = (struct scsi_read_dvd_structure *)&xs->cmd;
cmd->opcode = GPCMD_READ_DVD_STRUCTURE;
cmd->format = s->type;
_lto2b(xs->datalen, cmd->length);
error = scsi_xs_sync(xs);
scsi_xs_put(xs);
if (error == 0) {
s->manufact.len = _2btol(buf->len);
if (s->manufact.len >= 0 && s->manufact.len <= 2048)
memcpy(s->manufact.value, buf->data, s->manufact.len);
else
error = EIO;
}
done:
dma_free(buf, sizeof(*buf));
return error;
}
int
dvd_read_struct(struct cd_softc *sc, union dvd_struct *s)
{
switch (s->type) {
case DVD_STRUCT_PHYSICAL:
return dvd_read_physical(sc, s);
case DVD_STRUCT_COPYRIGHT:
return dvd_read_copyright(sc, s);
case DVD_STRUCT_DISCKEY:
return dvd_read_disckey(sc, s);
case DVD_STRUCT_BCA:
return dvd_read_bca(sc, s);
case DVD_STRUCT_MANUFACT:
return dvd_read_manufact(sc, s);
default:
return EINVAL;
}
}
int
cd_interpret_sense(struct scsi_xfer *xs)
{
struct scsi_sense_data *sense = &xs->sense;
struct scsi_link *link = xs->sc_link;
u_int8_t skey = sense->flags & SSD_KEY;
u_int8_t serr = sense->error_code & SSD_ERRCODE;
if (!ISSET(link->flags, SDEV_OPEN) ||
(serr != SSD_ERRCODE_CURRENT && serr != SSD_ERRCODE_DEFERRED))
return scsi_interpret_sense(xs);
/*
* We do custom processing in cd for the unit becoming ready
* case. We do not allow xs->retries to be decremented on the
* "Unit Becoming Ready" case. This is because CD drives
* report "Unit Becoming Ready" when loading media and can
* take a long time. Rather than having a massive timeout for
* all operations (which would cause other problems), we allow
* operations to wait (but be interruptible with Ctrl-C)
* forever as long as the drive is reporting that it is
* becoming ready. All other cases of not being ready are
* handled by the default handler.
*/
switch(skey) {
case SKEY_NOT_READY:
if (ISSET(xs->flags, SCSI_IGNORE_NOT_READY))
return 0;
if (ASC_ASCQ(sense) == SENSE_NOT_READY_BECOMING_READY) {
SC_DEBUG(link, SDEV_DB1, ("not ready: busy (%#x)\n",
sense->add_sense_code_qual));
/* don't count this as a retry */
xs->retries++;
return scsi_delay(xs, 1);
}
break;
/* XXX more to come here for a few other cases */
default:
break;
}
return scsi_interpret_sense(xs);
}
/*
* Find out from the device what its capacity is.
*/
u_int64_t
cd_size(struct scsi_link *link, int flags, u_int32_t *blksize)
{
struct scsi_read_cap_data_16 *rdcap16;
struct scsi_read_cap_data *rdcap;
u_int64_t max_addr;
int error;
if (blksize != NULL)
*blksize = 0;
CLR(flags, SCSI_IGNORE_ILLEGAL_REQUEST);
/*
* Start with a READ CAPACITY(10).
*/
rdcap = dma_alloc(sizeof(*rdcap), ((flags & SCSI_NOSLEEP) ?
PR_NOWAIT : PR_WAITOK) | PR_ZERO);
if (rdcap == NULL)
return 0;
error = scsi_read_cap_10(link, rdcap, flags);
if (error) {
dma_free(rdcap, sizeof(*rdcap));
return 0;
}
max_addr = _4btol(rdcap->addr);
if (blksize != NULL)
*blksize = _4btol(rdcap->length);
dma_free(rdcap, sizeof(*rdcap));
/*
* pre-SPC (i.e. pre-SCSI-3) devices reporting less than 2^32-1 sectors
* can stop here.
*/
if (SID_ANSII_REV(&link->inqdata) < SCSI_REV_SPC &&
max_addr != 0xffffffff)
goto exit;
rdcap16 = dma_alloc(sizeof(*rdcap16), ((flags & SCSI_NOSLEEP) ?
PR_NOWAIT : PR_WAITOK) | PR_ZERO);
if (rdcap16 == NULL)
goto exit;
error = scsi_read_cap_16(link, rdcap16, flags);
if (error) {
dma_free(rdcap16, sizeof(*rdcap16));
goto exit;
}
max_addr = _8btol(rdcap16->addr);
if (blksize != NULL)
*blksize = _4btol(rdcap16->length);
/* XXX The other READ CAPACITY(16) info could be stored away. */
dma_free(rdcap16, sizeof(*rdcap16));
return max_addr + 1;
exit:
/* Return READ CAPACITY 10 values. */
if (max_addr != 0xffffffff)
return max_addr + 1;
else if (blksize != NULL)
*blksize = 0;
return 0;
}
#if defined(__macppc__)
int
cd_eject(void)
{
struct cd_softc *sc;
int error = 0;
if (cd_cd.cd_ndevs == 0 || (sc = cd_cd.cd_devs[0]) == NULL)
return ENXIO;
if ((error = disk_lock(&sc->sc_dk)) != 0)
return error;
if (sc->sc_dk.dk_openmask == 0) {
SET(sc->sc_link->flags, SDEV_EJECTING);
scsi_prevent(sc->sc_link, PR_ALLOW,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY |
SCSI_SILENT | SCSI_IGNORE_MEDIA_CHANGE);
CLR(sc->sc_link->flags, SDEV_MEDIA_LOADED);
scsi_start(sc->sc_link, SSS_STOP|SSS_LOEJ, 0);
CLR(sc->sc_link->flags, SDEV_EJECTING);
}
disk_unlock(&sc->sc_dk);
return error;
}
#endif /* __macppc__ */
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