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freebsd/sys/scsi/worm.c
Julian Elischer f7ea2f55d1 There is no such thing any more as "struct bdevsw". 
There is only cdevsw (which should be renamed in a later edit to deventry
or something). cdevsw contains the union of what were in both bdevsw an
cdevsw entries.  The bdevsw[] table stiff exists and is a second pointer
to the cdevsw entry of the device. it's major is in d_bmaj rather than
d_maj. some cleanup still to happen (e.g. dsopen now gets two pointers
to the same cdevsw struct instead of one to a bdevsw and one to a cdevsw).

rawread()/rawwrite() went away as part of this though it's not strictly
the same  patch, just that it involves all the same lines in the drivers.

cdroms no longer have write() entries (they did have rawwrite (?)).
tapes no longer have support for bdev operations.

Reviewed by: Eivind Eklund and Mike Smith
	Changes suggested by eivind.
1998-07-04 22:30:26 +00:00

1812 lines
48 KiB
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/*
* worm: Write Once device driver
*
* Copyright (C) 1995, HD Associates, Inc.
* PO Box 276
* Pepperell, MA 01463
* 508 433 5266
* dufault@hda.com
*
* Copyright (C) 1996-97 interface business GmbH
* Naumannstr. 1
* D-01309 Dresden
* F.R. Germany
* <joerg_wunsch@interface-business.de>
*
* This code is contributed to the University of California at Berkeley:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: worm.c,v 1.57 1998/06/17 14:13:15 bde Exp $
*/
#include "opt_bounce.h"
#include "opt_devfs.h"
#include "opt_scsi.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/cdio.h>
#include <sys/wormio.h>
#include <sys/fcntl.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#ifdef DEVFS
#include <sys/devfsext.h>
#endif /*DEVFS*/
#include <scsi/scsiconf.h>
#include <scsi/scsi_debug.h>
#include <scsi/scsi_disk.h>
#include <scsi/scsi_driver.h>
#include <scsi/scsi_worm.h>
#include <scsi/scsi_cd.h>
#include <sys/dkstat.h>
#include <sys/malloc.h>
#include "ioconf.h"
struct worm_quirks
{
/*
* The device-specific functions that need to be called during
* the several steps.
*/
errval (*prepare_disk)(struct scsi_link *, int dummy, int speed);
errval (*prepare_track)(struct scsi_link *, struct wormio_prepare_track *t);
errval (*finalize_track)(struct scsi_link *);
errval (*finalize_disk)(struct scsi_link *, int toc_type, int onp);
errval (*write_session)(struct scsi_link *, struct wormio_write_session *);
errval (*read_first_writable_address)(struct scsi_link *sc_link,
int track, int mode, int raw, int audio, int *addr);
};
struct scsi_data
{
struct buf_queue_head buf_queue;
int dkunit; /* disk stats unit number */
u_int32_t blk_size; /* Size of each blocks */
#ifdef DEVFS
void *b_devfs_token;
void *c_devfs_token;
void *ctl_devfs_token;
#endif
struct worm_quirks *quirks; /* model-specific functions */
struct wormio_prepare_track preptrack; /* scratch region */
struct wormio_write_session *write_session; /* scratch region */
u_int8_t dummy; /* use dummy writes */
u_int8_t speed; /* select drive speed */
u_int32_t worm_flags; /* driver-internal flags */
#define WORMFL_DISK_PREPED 0x01 /* disk parameters have been spec'ed */
#define WORMFL_TRACK_PREPED 0x02 /* track parameters have been sent */
#define WORMFL_WRITTEN 0x04 /* track has been written */
#define WORMFL_IOCTL_ONLY 0x08 /* O_NDELAY, only ioctls allowed */
#define WORMFL_TRACK_PREP 0x10 /* track parameters have been spec'ed */
int error; /* last error */
};
static struct {
int asc;
int devmode;
int error;
int ret;
} worm_error[] = {
{0x24, WORM_Q_PLASMON|WORM_Q_PHILIPS, WORM_ABSORPTION_CONTROL_ERROR, 0},
{0xb0, WORM_Q_PLASMON|WORM_Q_PHILIPS, WORM_CALIBRATION_AREA_ALMOST_FULL, 0},
{0xb4, WORM_Q_PLASMON|WORM_Q_PHILIPS, WORM_CALIBRATION_AREA_FULL, SCSIRET_CONTINUE},
{0xb5, WORM_Q_PLASMON|WORM_Q_PHILIPS, WORM_DUMMY_BLOCKS_ADDED, 0},
{0xaa, WORM_Q_PLASMON|WORM_Q_PHILIPS, WORM_END_OF_MEDIUM, SCSIRET_CONTINUE},
{0xad, WORM_Q_PLASMON|WORM_Q_PHILIPS, WORM_BUFFER_UNDERRUN, SCSIRET_CONTINUE},
{0xaf, WORM_Q_PLASMON|WORM_Q_PHILIPS, WORM_OPTIMUM_POWER_CALIBRATION_ERROR, SCSIRET_CONTINUE},
{0, 0, 0, 0}
};
static void wormstart(u_int32_t unit, u_int32_t flags);
static errval worm_open(dev_t dev, int flags, int fmt, struct proc *p,
struct scsi_link *sc_link);
static errval worm_ioctl(dev_t dev, u_long cmd, caddr_t addr, int flag,
struct proc *p, struct scsi_link *sc_link);
static errval worm_close(dev_t dev, int flag, int fmt, struct proc *p,
struct scsi_link *sc_link);
static void worm_strategy(struct buf *bp, struct scsi_link *sc_link);
static errval worm_read_toc(struct scsi_link *sc_link,
u_int32_t mode, u_int32_t start,
struct cd_toc_entry *data, u_int32_t len);
static errval worm_rezero_unit(struct scsi_link *sc_link);
static errval worm_read_session_info(struct scsi_link *, struct wormio_session_info *);
static int worm_sense_handler(struct scsi_xfer *);
static errval worm_set_blksize(struct scsi_link *sc_link, int size);
/* XXX should be moved out to an LKM */
static errval rf4100_prepare_disk(struct scsi_link *, int dummy, int speed);
static errval rf4100_prepare_track(struct scsi_link *, struct wormio_prepare_track *);
static errval rf4100_finalize_track(struct scsi_link *);
static errval rf4100_finalize_disk(struct scsi_link *, int toc_type, int onp);
static errval hp4020i_prepare_disk(struct scsi_link *, int dummy, int speed);
static errval hp4020i_prepare_track(struct scsi_link *, struct wormio_prepare_track *);
static errval hp4020i_finalize_track(struct scsi_link *);
static errval hp4020i_finalize_disk(struct scsi_link *, int toc_type, int onp);
static errval hp4020i_write_session(struct scsi_link *, struct wormio_write_session *);
static errval hp4020i_read_first_writable_address (struct scsi_link *sc_link,
int track, int mode, int raw, int audio, int *addr);
static worm_devsw_installed = 0;
static d_open_t wormopen;
static d_read_t wormread;
static d_write_t wormwrite;
static d_close_t wormclose;
static d_ioctl_t wormioctl;
static d_strategy_t wormstrategy;
#define CDEV_MAJOR 62
#define BDEV_MAJOR 23
static struct cdevsw worm_cdevsw = {
wormopen, wormclose, wormread, wormwrite,
wormioctl, nostop, nullreset, nodevtotty,
seltrue, nommap, wormstrategy, "worm",
NULL, -1, nodump, nopsize,
D_DISK, 0, -1 };
static int
wormunit(dev_t dev)
{
return (minor(dev) & ~(SCSI_FIXED_MASK|SCSI_CONTROL_MASK));
}
SCSI_DEVICE_ENTRIES(worm)
static struct scsi_device worm_switch =
{
worm_sense_handler,
wormstart, /* we have a queue, and this is how we service it */
NULL,
NULL,
"worm",
0,
{0, 0},
SDEV_ONCE_ONLY, /* Only one open allowed */
wormattach,
"Write-Once",
wormopen,
sizeof(struct scsi_data),
T_WORM,
wormunit,
0,
worm_open,
worm_ioctl,
worm_close,
worm_strategy,
};
static struct worm_quirks worm_quirks_plasmon = {
rf4100_prepare_disk, rf4100_prepare_track,
rf4100_finalize_track, rf4100_finalize_disk,
0, hp4020i_read_first_writable_address
};
static struct worm_quirks worm_quirks_philips = {
hp4020i_prepare_disk, hp4020i_prepare_track,
hp4020i_finalize_track, hp4020i_finalize_disk,
hp4020i_write_session, hp4020i_read_first_writable_address
};
static __inline void
worm_registerdev(int unit)
{
if (dk_ndrive < DK_NDRIVE) {
sprintf(dk_names[dk_ndrive], "worm%d", unit);
dk_wpms[dk_ndrive] = (1*1024*1024/2); /* 1MB/sec XXX - fake! */
SCSI_DATA(&worm_switch, unit)->dkunit = dk_ndrive++;
} else {
SCSI_DATA(&worm_switch, unit)->dkunit = -1;
}
}
static errval
worm_size(struct scsi_link *sc_link, int flags)
{
errval ret;
struct scsi_data *worm = sc_link->sd;
int blk_size;
u_int32_t n_blks;
SC_DEBUG(sc_link, SDEV_DB2, ("worm_size"));
n_blks = scsi_read_capacity(sc_link, &blk_size, flags);
/*
* CD-R devices can assume various sizes, depending on the
* intended purpose of the track. Hence, READ CAPACITY
* doesn't give us any good results. We make a more educated
* guess when it comes to prepare a track.
*/
if (n_blks > 0) {
sc_link->flags |= SDEV_MEDIA_LOADED;
ret = 0;
} else {
sc_link->flags &= ~SDEV_MEDIA_LOADED;
ret = ENXIO;
}
return ret;
}
static errval
wormattach(struct scsi_link *sc_link)
{
u_int32_t unit = sc_link->dev_unit;
#ifdef DEVFS
int mynor;
#endif
struct scsi_data *worm = sc_link->sd;
if (sc_link->devmodes == 0)
printf(", warning: unknown drive type", unit);
bufq_init(&worm->buf_queue);
#ifdef DEVFS
mynor = wormunit(sc_link->dev);
worm->b_devfs_token =
devfs_add_devswf(&worm_cdevsw, mynor,
DV_BLK, 0, 0, 0444, "worm%d", mynor);
worm->c_devfs_token =
devfs_add_devswf(&worm_cdevsw, mynor,
DV_CHR, 0, 0, 0644, "rworm%d", mynor);
worm->ctl_devfs_token =
devfs_add_devswf(&worm_cdevsw, mynor | SCSI_CONTROL_MASK,
DV_CHR, 0, 0, 0600, "rworm%d.ctl", mynor);
#endif
worm_registerdev(unit);
return 0;
}
static int
wormread(dev_t dev, struct uio *uio, int ioflag)
{
return (physio(wormstrategy, NULL, dev, 1, minphys, uio));
}
static int
wormwrite(dev_t dev, struct uio *uio, int ioflag)
{
return (physio(wormstrategy, NULL, dev, 0, minphys, uio));
}
/*
* wormstart 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 required. 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 (wormstrategy)
*
* 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.
* wormstart() is called at splbio
*
* XXX It looks like we need a "scsistart" to hoist common code up
* into. In particular, the removable media checking should be
* handled in one place.
*
* Writes will fail if the disk and track not been prepared via the control
* device.
*/
static void
wormstart(unit, flags)
u_int32_t unit;
u_int32_t flags;
{
struct scsi_link *sc_link = SCSI_LINK(&worm_switch, unit);
struct scsi_data *worm = sc_link->sd;
register struct buf *bp = 0;
struct scsi_rw_big cmd;
u_int32_t lba; /* Logical block address */
u_int32_t tl; /* Transfer length */
SC_DEBUG(sc_link, SDEV_DB2, ("wormstart "));
/*
* We should reject all queued entries if SDEV_MEDIA_LOADED is not true.
*/
if (!(sc_link->flags & SDEV_MEDIA_LOADED)) {
goto badnews; /* no I/O.. media changed or something */
}
/*
* See if there is a buf to do and we are not already
* doing one
*/
while (sc_link->opennings != 0) {
/* if a special awaits, let it proceed first */
if (sc_link->flags & SDEV_WAITING) {
sc_link->flags &= ~SDEV_WAITING;
wakeup(sc_link);
return;
}
bp = bufq_first(&worm->buf_queue);
if (bp == NULL)
return;
bufq_remove(&worm->buf_queue, bp);
if ((bp->b_flags & B_READ) == B_WRITE) {
if ((worm->worm_flags & WORMFL_TRACK_PREPED) == 0) {
if ((worm->worm_flags & WORMFL_TRACK_PREP) == 0 &&
!worm->write_session) {
SC_DEBUG(sc_link, SDEV_DB3, ("sequence error\n"));
bp->b_error = EIO;
bp->b_flags |= B_ERROR;
worm->error = WORM_SEQUENCE_ERROR;
biodone(bp);
goto badnews;
} else {
if (worm->write_session) {
if ((worm->quirks->write_session)
(sc_link, worm->write_session)) {
biodone(bp);
goto badnews;
}
} else
if (worm->quirks->prepare_track(sc_link, &worm->preptrack)
!= 0) {
biodone(bp);
goto badnews;
}
worm->worm_flags |= WORMFL_TRACK_PREPED;
}
}
}
/*
* Fill out the scsi command
*/
bzero(&cmd, sizeof(cmd));
if ((bp->b_flags & B_READ) == B_WRITE) {
cmd.op_code = WRITE_BIG;
flags |= SCSI_DATA_OUT;
} else {
cmd.op_code = READ_BIG;
flags |= SCSI_DATA_IN;
}
worm->error = 0;
lba = bp->b_blkno / (worm->blk_size / DEV_BSIZE);
tl = bp->b_bcount / worm->blk_size;
if (bp->b_flags & B_READ)
/*
* Leave the LBA as 0 for write operations, it
* is reserved in this case (and wouldn't make
* any sense to set it at all, since CD-R write
* operations are in `streaming' mode anyway.
*/
scsi_uto4b(lba, &cmd.addr_3);
scsi_uto2b(tl, &cmd.length2);
/*
* go ask the adapter to do all this for us
*/
if (scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd,
sizeof(cmd),
(u_char *) bp->b_data,
bp->b_bcount,
0,
100000,
bp,
flags | SCSI_NOSLEEP) == SUCCESSFULLY_QUEUED) {
if (worm->dkunit >= 0) { /* Cloned from od.c, possibly with same mistakes. :) */
dk_xfer[worm->dkunit]++;
dk_seek[worm->dkunit] = 1; /* single track */
dk_wds[worm->dkunit] += bp->b_bcount >> 6;
}
if ((bp->b_flags & B_READ) == B_WRITE)
worm->worm_flags |= WORMFL_WRITTEN;
} else {
printf("worm%ld: oops not queued\n", unit);
if (bp) {
bp->b_flags |= B_ERROR;
bp->b_error = EIO;
biodone(bp);
}
}
} /* go back and see if we can cram more work in.. */
badnews: ;
}
static void
worm_strategy(struct buf *bp, struct scsi_link *sc_link)
{
unsigned char unit;
u_int32_t opri;
struct scsi_data *worm;
unit = wormunit(bp->b_dev);
worm = sc_link->sd;
if ((worm->worm_flags & WORMFL_IOCTL_ONLY) != 0) {
SC_DEBUG(sc_link, SDEV_DB3,
("attempted IO on ioctl-only descriptor\n"));
bp->b_error = EBADF;
bp->b_flags |= B_ERROR;
biodone(bp);
return;
}
/*
* check it's not too big a transfer for our adapter
*/
wormminphys(bp);
opri = splbio();
/*
* Use a bounce buffer if necessary
* XXX: How can we move this up?
*/
#ifdef BOUNCE_BUFFERS
if (sc_link->flags & SDEV_BOUNCE)
vm_bounce_alloc(bp);
#endif
/*
* Place it in the queue of activities for this device
* at the end.
*/
bufq_insert_tail(&worm->buf_queue, bp);
wormstart(unit, 0);
splx(opri);
return;
}
/*
* Open the device.
* Only called for the "real" device, not for the control device.
*/
static int
worm_open(dev_t dev, int flags, int fmt, struct proc *p,
struct scsi_link *sc_link)
{
struct scsi_data *worm;
errval error;
error = 0;
worm = sc_link->sd;
if (sc_link->flags & SDEV_OPEN)
return EBUSY;
/*
* Unknown drive type: only the control device can be opened
* in this case, so scsi(8) and things like cdrecord will
* work.
*/
if (sc_link->devmodes == 0)
return ENXIO;
/*
* Check that it is still responding and ok.
* if the media has been changed this will result in a
* "unit attention" error which the error code will
* disregard because the SDEV_OPEN flag is not yet set
*
* XXX This should REALLY be hoisted up. As soon as Bruce
* finishes that slice stuff. (Add a different flag,
* and then do a "scsi_test_unit_ready" with the "ignore
* unit attention" thing set. Then all this replicated
* test unit ready code can be pulled up.
*/
scsi_test_unit_ready(sc_link, SCSI_SILENT);
/*
* The semantics of the "flags" is as follows:
*
* If the device has been opened with O_NONBLOCK set, no
* actual IO will be allowed, and the command sequence is only
* subject to the restrictions as in worm_ioctl() below.
*/
/*
* Next time actually take notice of error returns,
* unit attn errors are now errors.
*/
sc_link->flags |= SDEV_OPEN;
if (scsi_test_unit_ready(sc_link, SCSI_SILENT) != 0) {
SC_DEBUG(sc_link, SDEV_DB3, ("not ready\n"));
error = ENXIO;
goto out;
}
if ((flags & O_NONBLOCK) == 0) {
scsi_start_unit(sc_link, SCSI_SILENT);
scsi_prevent(sc_link, PR_PREVENT, SCSI_SILENT);
if((flags & FWRITE) != 0) {
if ((error = worm_rezero_unit(sc_link)) != 0 ||
(error = worm_size(sc_link, 0)) != 0) {
SC_DEBUG(sc_link, SDEV_DB3,
("rezero, or get size failed\n"));
error = EIO;
goto out;
}
} else {
/* read/only */
if ((error = worm_size(sc_link, 0)) != 0) {
SC_DEBUG(sc_link, SDEV_DB3,
("get size failed\n"));
error = EIO;
goto out;
}
worm->blk_size = 2048;
}
} else
worm->worm_flags |= WORMFL_IOCTL_ONLY;
switch (*(int *) sc_link->devmodes) {
case WORM_Q_PLASMON:
worm->quirks = &worm_quirks_plasmon;
break;
case WORM_Q_PHILIPS:
worm->quirks = &worm_quirks_philips;
break;
default:
error = ENXIO;
}
worm->error = 0;
out:
if (error) {
scsi_prevent(sc_link, PR_ALLOW, SCSI_SILENT);
worm->worm_flags &= ~(WORMFL_TRACK_PREPED| WORMFL_TRACK_PREP);
sc_link->flags &= ~SDEV_OPEN;
}
return error;
}
static int
worm_close(dev_t dev, int flags, int fmt, struct proc *p,
struct scsi_link *sc_link)
{
struct scsi_data *worm = sc_link->sd;
errval error;
error = 0;
if ((worm->worm_flags & WORMFL_IOCTL_ONLY) == 0) {
if ((flags & FWRITE) != 0) {
worm->error = 0;
if ((worm->worm_flags & WORMFL_TRACK_PREPED) != 0) {
error = (worm->quirks->finalize_track)(sc_link);
worm->worm_flags &=
~(WORMFL_TRACK_PREPED | WORMFL_TRACK_PREP);
}
}
scsi_prevent(sc_link, PR_ALLOW, SCSI_SILENT);
} else {
worm->worm_flags &= ~WORMFL_IOCTL_ONLY;
if (worm->write_session) {
#ifdef BOUNCE_BUFFERS
vm_bounce_kva_alloc_free((vm_offset_t)worm->write_session,
btoc(sizeof(struct wormio_write_session) +
worm->write_session->length));
#else
free(worm->write_session, M_DEVBUF);
#endif
worm->write_session = 0;
}
}
sc_link->flags &= ~SDEV_OPEN;
return error;
}
/*
* Perform special action on behalf of the user.
* Knows about the internals of this device
*/
errval
worm_ioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p,
struct scsi_link *sc_link)
{
errval error = 0;
u_int8_t unit;
register struct scsi_data *worm;
/*
* Find the device that the user is talking about
*/
unit = wormunit(dev);
worm = sc_link->sd;
SC_DEBUG(sc_link, SDEV_DB2, ("wormioctl 0x%x ", cmd));
switch (cmd) {
case WORMIOCPREPDISK:
{
struct wormio_prepare_disk *w =
(struct wormio_prepare_disk *)addr;
if (w->dummy != 0 && w->dummy != 1)
error = EINVAL;
else {
error = (worm->quirks->prepare_disk)
(sc_link, w->dummy, w->speed);
if (error == 0) {
worm->worm_flags |= WORMFL_DISK_PREPED;
worm->dummy = w->dummy;
worm->speed = w->speed;
}
}
}
break;
case WORMIOCPREPTRACK:
{
struct wormio_prepare_track *w =
(struct wormio_prepare_track *)addr;
if (w->audio != 0 && w->audio != 1)
error = EINVAL;
else if (w->audio == 0 && w->preemp)
error = EINVAL;
else if ((worm->worm_flags & WORMFL_DISK_PREPED)==0) {
error = EINVAL;
worm->error = WORM_SEQUENCE_ERROR;
} else {
/*
* This sets a flag only. Actual preparation of a
* track will be deferred up to the first write.
*/
worm->worm_flags |= WORMFL_TRACK_PREP;
worm->preptrack = *w;
if (worm->write_session) {
#ifdef BOUNCE_BUFFERS
vm_bounce_kva_alloc_free((vm_offset_t)worm->write_session,
btoc(sizeof(struct wormio_write_session) +
worm->write_session->length));
#else
free(worm->write_session, M_DEVBUF);
#endif
worm->write_session = 0;
}
}
}
break;
case WORMIOCFINISHTRACK:
if ((worm->worm_flags & WORMFL_TRACK_PREPED) != 0)
error = (worm->quirks->finalize_track)(sc_link);
worm->worm_flags &= ~(WORMFL_TRACK_PREPED | WORMFL_TRACK_PREP);
break;
case WORMIOCFIXATION:
{
struct wormio_fixation *w =
(struct wormio_fixation *)addr;
if ((worm->worm_flags & WORMFL_WRITTEN) == 0)
error = EINVAL;
else if (w->toc_type < WORM_TOC_TYPE_AUDIO ||
w->toc_type > WORM_TOC_TYPE_CDI)
error = EINVAL;
else if (w->onp != 0 && w->onp != 1)
error = EINVAL;
else {
worm->worm_flags = 0;
/* no fixation needed if dummy write */
if (worm->dummy == 0) {
worm->error = 0;
error = (worm->quirks->finalize_disk)
(sc_link, w->toc_type, w->onp);
}
}
}
break;
case WORMIOCREADSESSIONINFO:
{
struct wormio_session_info si;
error = worm_read_session_info(sc_link, &si);
if (error)
break;
NTOHS(si.lead_in);
NTOHS(si.lead_out);
bcopy(&si, addr, sizeof si);
}
break;
case WORMIOCWRITESESSION:
if (worm->quirks->write_session) {
if ((worm->worm_flags & WORMFL_DISK_PREPED)==0) {
error = EINVAL;
worm->error = WORM_SEQUENCE_ERROR;
} else {
#ifdef BOUNCE_BUFFERS
worm->write_session = (struct wormio_write_session *)
vm_bounce_kva_alloc(
btoc(sizeof(struct wormio_write_session) +
((struct wormio_write_session *) addr)->length));
if (!worm->write_session) {
error = ENOMEM;
break;
}
#else
worm->write_session = malloc(sizeof(struct wormio_write_session) +
((struct wormio_write_session *) addr)->length,
M_DEVBUF, M_WAITOK);
#endif
bcopy(addr, worm->write_session, sizeof(struct wormio_write_session));
worm->write_session->track_desc = sizeof(struct wormio_write_session) +
(u_char *) worm->write_session;
bcopy(((struct wormio_write_session *) addr)->track_desc,
worm->write_session->track_desc, ((struct wormio_write_session *) addr)->length);
}
} else
error = ENXIO;
break;
case WORMIOCFIRSTWRITABLEADDR:
if (worm->quirks->read_first_writable_address) {
int address;
struct wormio_first_writable_addr *a =
(struct wormio_first_writable_addr *) addr;
if ((a->audio & ~1) || (a->raw & ~1) || (a->mode & ~3)
|| (a->track & ~0x7f)) {
error = EINVAL;
break;
}
error = worm->quirks->read_first_writable_address(sc_link, a->track,
a->mode, a->raw,
a->audio, &address);
if (error)
break;
error = copyout(&address, a->addr, sizeof(int));
} else
error = ENXIO;
break;
case WORMIOERROR:
bcopy(&(worm->error), addr, sizeof (int));
break;
case CDIOREADTOCHEADER:
{
struct ioc_toc_header th;
error = worm_read_toc(sc_link, 0, 0,
(struct cd_toc_entry *)&th,
sizeof th);
if (error)
break;
NTOHS(th.len);
bcopy(&th, addr, sizeof th);
}
break;
case CDIOREADTOCENTRYS:
{
struct {
struct ioc_toc_header header;
struct cd_toc_entry entries[100];
} data;
struct {
struct ioc_toc_header header;
struct cd_toc_entry entry;
} lead;
struct ioc_read_toc_entry *te =
(struct ioc_read_toc_entry *) addr;
struct ioc_toc_header *th;
u_int32_t len, readlen, idx, num;
u_int32_t starting_track = te->starting_track;
if (te->data_len < sizeof(struct cd_toc_entry)
|| (te->data_len % sizeof(struct cd_toc_entry)) != 0
|| te->address_format != CD_MSF_FORMAT
&& te->address_format != CD_LBA_FORMAT) {
error = EINVAL;
break;
}
th = &data.header;
error = worm_read_toc(sc_link, 0, 0,
(struct cd_toc_entry *)th,
sizeof (*th));
if (error)
break;
if (starting_track == 0)
starting_track = th->starting_track;
else if (starting_track == 0xaa)
starting_track = th->ending_track + 1;
else if (starting_track < th->starting_track ||
starting_track > th->ending_track + 1) {
error = EINVAL;
break;
}
/* calculate reading length without leadout entry */
readlen = (th->ending_track - starting_track + 1) *
sizeof(struct cd_toc_entry);
/* and with leadout entry */
len = readlen + sizeof(struct cd_toc_entry);
if (te->data_len < len) {
len = te->data_len;
if (readlen > len)
readlen = len;
}
if (len > sizeof(data.entries)) {
error = EINVAL;
break;
}
num = len / sizeof(struct cd_toc_entry);
if (readlen > 0) {
error = worm_read_toc(sc_link,
te->address_format,
starting_track,
(struct cd_toc_entry *)&data,
readlen + sizeof (*th));
if (error)
break;
}
/* make leadout entry if needed */
idx = starting_track + num - 1;
if (idx == th->ending_track + 1) {
error = worm_read_toc(sc_link,
te->address_format, 0xaa,
(struct cd_toc_entry *)&lead,
sizeof(lead));
if (error)
break;
data.entries[idx - starting_track] = lead.entry;
}
error = copyout(data.entries, te->data, len);
}
break;
case CDIOREADTOCENTRY:
{
struct {
struct ioc_toc_header header;
struct cd_toc_entry entry;
} data;
struct ioc_read_toc_single_entry *te =
(struct ioc_read_toc_single_entry *) addr;
struct ioc_toc_header *th;
u_int32_t track;
if (te->address_format != CD_MSF_FORMAT
&& te->address_format != CD_LBA_FORMAT) {
error = EINVAL;
break;
}
th = &data.header;
error = worm_read_toc(sc_link, 0, 0,
(struct cd_toc_entry *)th,
sizeof (*th));
if (error)
break;
track = te->track;
if (track == 0)
track = th->starting_track;
else if (track == 0xaa)
/* OK */;
else if (track < th->starting_track ||
track > th->ending_track + 1) {
error = EINVAL;
break;
}
error = worm_read_toc(sc_link, te->address_format,
track,
(struct cd_toc_entry *)&data,
sizeof data);
if (error)
break;
bcopy(&data.entry, &te->entry,
sizeof(struct cd_toc_entry));
}
break;
default:
error = ENOTTY;
break;
}
return (error);
}
static errval
worm_rezero_unit(struct scsi_link *sc_link)
{
struct scsi_rezero_unit cmd;
SC_DEBUG(sc_link, SDEV_DB2, ("worm_rezero_unit"));
/*
* Re-initialize the unit, just to be sure.
*/
bzero(&cmd, sizeof(cmd));
cmd.op_code = REZERO_UNIT;
return scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd,
sizeof(cmd),
0, /* no data transfer */
0,
/*WORMRETRY*/ 4,
5000,
NULL,
0);
}
static errval
worm_read_session_info(struct scsi_link *sc_link, struct wormio_session_info *data)
{
struct scsi_read_session_info cmd;
SC_DEBUG(sc_link, SDEV_DB2, ("worm_read_session_info"));
bzero(&cmd, sizeof(cmd));
cmd.op_code = READ_SESSION_INFO;
cmd.transfer_length = sizeof(struct wormio_session_info);
return scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd,
sizeof(cmd),
(u_char *) data,
sizeof(struct wormio_session_info),
/*WORMRETRY*/ 4,
5000,
NULL,
SCSI_DATA_IN);
}
/*
* Read table of contents
*
* Stolen from cd.c
*/
static errval
worm_read_toc(struct scsi_link *sc_link, u_int32_t mode, u_int32_t start,
struct cd_toc_entry *data, u_int32_t len)
{
struct scsi_read_toc scsi_cmd;
u_int32_t ntoc;
bzero(&scsi_cmd, sizeof(scsi_cmd));
ntoc = len;
scsi_cmd.op_code = READ_TOC;
if (mode == CD_MSF_FORMAT)
scsi_cmd.byte2 |= CD_MSF;
scsi_cmd.from_track = start;
scsi_cmd.data_len[0] = (ntoc) >> 8;
scsi_cmd.data_len[1] = (ntoc) & 0xff;
return (scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &scsi_cmd,
sizeof(struct scsi_read_toc),
(u_char *) data,
len,
/*WORMRETRY*/ 4,
5000,
NULL,
SCSI_DATA_IN));
}
static int
worm_sense_handler(struct scsi_xfer *xs)
{
struct scsi_data *worm;
struct scsi_sense_data *sense;
struct scsi_sense_extended *ext;
int asc, devmode, i;
worm = xs->sc_link->sd;
sense = &(xs->sense);
ext = (struct scsi_sense_extended *) &(sense->ext.extended);
asc = ext->add_sense_code;
devmode = *(int *) xs->sc_link->devmodes;
for (i = 0; worm_error[i].asc; i++)
if ((asc == worm_error[i].asc) && (devmode & worm_error[i].devmode)) {
worm->error = worm_error[i].error;
return worm_error[i].ret;
}
worm->error = -1;
return SCSIRET_CONTINUE;
}
static errval
worm_set_blksize(struct scsi_link *sc_link, int size)
{
struct scsi_mode_select scsi_cmd;
struct {
struct scsi_mode_header header;
struct blk_desc desc;
} dat;
bzero(&scsi_cmd, sizeof(scsi_cmd));
bzero(&dat, sizeof(dat));
scsi_cmd.op_code = MODE_SELECT;
scsi_cmd.length = sizeof(dat);
dat.header.blk_desc_len = sizeof(struct blk_desc);
scsi_uto3b(size, dat.desc.blklen);
return scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &scsi_cmd,
sizeof(scsi_cmd),
(u_char *) &dat,
sizeof(dat),
/*WORM_RETRIES*/ 4,
5000,
NULL,
SCSI_DATA_OUT);
}
static void
worm_drvinit(void *unused)
{
if (!worm_devsw_installed) {
cdevsw_add_generic(BDEV_MAJOR, CDEV_MAJOR, &worm_cdevsw);
worm_devsw_installed = 1;
}
}
SYSINIT(wormdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,worm_drvinit,NULL)
/*
* Begin device-specific stuff. Subject to being moved out to LKMs.
*/
static u_char
ascii_to_6bit (char c)
{
if (c < '0' || c > 'Z' || (c > '9' && c < 'A'))
return 0;
if (c <= '9')
return c - '0';
else
return c - 'A' + 11;
}
/*
* PLASMON RF4100/4102
* Perhaps other Plasmon's, too.
*
* NB: By now, you'll certainly have to compare the SCSI reference
* manual in order to understand the following.
*/
/* The following mode pages might apply to other drives as well. */
struct plasmon_rf4100_pages
{
u_char page_code;
#define RF4100_PAGE_CODE_20 0x20
#define RF4100_PAGE_CODE_21 0x21
#define RF4100_PAGE_CODE_22 0x22
#define RF4100_PAGE_CODE_23 0x23
#define RF4100_PAGE_CODE_24 0x24
#define RF4100_PAGE_CODE_25 0x25
u_char param_len;
union
{
/* page 0x20 omitted by now */
struct
{
u_char reserved1;
u_char mode;
#define RF4100_RAW_MODE 0x10 /* raw mode enabled */
#define RF4100_MIXED_MODE 0x08 /* mixed mode data enabled */
#define RF4100_AUDIO_MODE 0x04 /* audio mode data enabled */
#define RF4100_MODE_1 0x01 /* mode 1 blocks are enabled */
#define RF4100_MODE_2 0x02 /* mode 2 blocks are enabled */
u_char track_number;
u_char isrc_i1; /* country code, ASCII */
u_char isrc_i2;
u_char isrc_i3; /* owner code, ASCII */
u_char isrc_i4;
u_char isrc_i5;
u_char isrc_i6_7; /* country code, BCD */
u_char isrc_i8_9; /* serial number, BCD */
u_char isrc_i10_11;
u_char isrc_i12_0;
u_char reserved2[2];
}
page_0x21;
/* mode page 0x22 omitted by now */
struct
{
u_char speed_select;
#define RF4100_SPEED_AUDIO 0x01
#define RF4100_SPEED_DOUBLE 0x02
u_char dummy_write;
#define RF4100_DUMMY_WRITE 0x01
u_char reserved[4];
}
page_0x23;
/* pages 0x24 and 0x25 omitted by now */
}
pages;
};
static errval
rf4100_prepare_disk(struct scsi_link *sc_link, int dummy, int speed)
{
struct scsi_mode_select scsi_cmd;
struct {
struct scsi_mode_header header;
struct plasmon_rf4100_pages page;
} dat;
u_int32_t pagelen, dat_len;
pagelen = sizeof(dat.page.pages.page_0x23) + PAGE_HEADERLEN;
dat_len = sizeof(struct scsi_mode_header) + pagelen;
SC_DEBUG(sc_link, SDEV_DB2, ("rf4100_prepare_disk"));
if (speed != RF4100_SPEED_AUDIO && speed != RF4100_SPEED_DOUBLE)
return EINVAL;
/*
* Set up a mode page 0x23
*/
bzero(&dat, sizeof(dat));
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.op_code = MODE_SELECT;
scsi_cmd.length = dat_len;
/* dat.header.dev_spec = host application code; (see spec) */
dat.page.page_code = RF4100_PAGE_CODE_23;
dat.page.param_len = sizeof(dat.page.pages.page_0x23);
dat.page.pages.page_0x23.speed_select = speed;
dat.page.pages.page_0x23.dummy_write = dummy? RF4100_DUMMY_WRITE: 0;
/*
* Fire it off.
*/
return scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &scsi_cmd,
sizeof(scsi_cmd),
(u_char *) &dat,
dat_len,
/*WORM_RETRIES*/ 4,
5000,
NULL,
SCSI_DATA_OUT);
}
static errval
rf4100_prepare_track(struct scsi_link *sc_link, struct wormio_prepare_track *t)
{
struct scsi_mode_select scsi_cmd;
struct scsi_data *worm;
struct {
struct scsi_mode_header header;
struct blk_desc blk_desc;
struct plasmon_rf4100_pages page;
} dat;
u_int32_t pagelen, dat_len, blk_len;
int year;
worm = sc_link->sd;
pagelen = sizeof(dat.page.pages.page_0x21) + PAGE_HEADERLEN;
dat_len = sizeof(struct scsi_mode_header)
+ sizeof(struct blk_desc)
+ pagelen;
SC_DEBUG(sc_link, SDEV_DB2, ("rf4100_prepare_track"));
/*
* Set up a mode page 0x21. Note that the block descriptor is
* mandatory in at least one of the MODE SELECT commands, in
* order to select the block length in question. We do this
* here, just prior to opening the write channel. (Spec:
* ``All information for the write is included in the MODE
* SELECT, MODE PAGE 21h, and the write channel can be
* considered open on receipt of the first WRITE command.'' I
* didn't have luck with an explicit WRITE TRACK command
* anyway, this might be different for other CD-R drives. -
* J<>rg)
*/
bzero(&dat, sizeof(dat));
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.op_code = MODE_SELECT;
scsi_cmd.length = dat_len;
dat.header.blk_desc_len = sizeof(struct blk_desc);
dat.page.page_code = RF4100_PAGE_CODE_21;
dat.page.param_len = sizeof(dat.page.pages.page_0x21);
/* dat.header.dev_spec = host application code; (see spec) */
if (t->audio) {
blk_len = 2352;
dat.page.pages.page_0x21.mode = RF4100_AUDIO_MODE +
(t->preemp? RF4100_MODE_1 : 0);
} else
switch (t->track_type) {
case BLOCK_RAW:
blk_len = 2352;
dat.page.pages.page_0x21.mode = RF4100_RAW_MODE;
break;
case BLOCK_MODE_1:
blk_len = 2048;
dat.page.pages.page_0x21.mode = RF4100_MODE_1;
break;
case BLOCK_MODE_2:
blk_len = 2336;
dat.page.pages.page_0x21.mode = RF4100_MODE_2;
break;
case BLOCK_MODE_2_FORM_1:
blk_len = 2048;
dat.page.pages.page_0x21.mode = RF4100_MODE_2;
break;
case BLOCK_MODE_2_FORM_1b:
blk_len = 2056;
dat.page.pages.page_0x21.mode = RF4100_MODE_2;
break;
case BLOCK_MODE_2_FORM_2:
blk_len = 2324;
dat.page.pages.page_0x21.mode = RF4100_MODE_2;
break;
case BLOCK_MODE_2_FORM_2b:
blk_len = 2332;
dat.page.pages.page_0x21.mode = RF4100_MODE_2;
break;
default:
return EINVAL;
}
dat.page.pages.page_0x21.mode |= t->copy_bits << 5;
worm->blk_size = blk_len;
dat.page.pages.page_0x21.track_number = t->track_number;
dat.page.pages.page_0x21.isrc_i1 = ascii_to_6bit(t->ISRC_country[0]);
dat.page.pages.page_0x21.isrc_i2 = ascii_to_6bit(t->ISRC_country[1]);
dat.page.pages.page_0x21.isrc_i3 = ascii_to_6bit(t->ISRC_owner[0]);
dat.page.pages.page_0x21.isrc_i4 = ascii_to_6bit(t->ISRC_owner[1]);
dat.page.pages.page_0x21.isrc_i5 = ascii_to_6bit(t->ISRC_owner[2]);
year = t->ISRC_year % 100;
if (year < 0)
return EINVAL;
dat.page.pages.page_0x21.isrc_i6_7 = bin2bcd(year);
if (t->ISRC_serial[0]) {
dat.page.pages.page_0x21.isrc_i8_9 = ((t->ISRC_serial[0]-'0') << 4) |
(t->ISRC_serial[1] - '0');
dat.page.pages.page_0x21.isrc_i10_11 = ((t->ISRC_serial[2]-'0') << 4) |
(t->ISRC_serial[3] - '0');
dat.page.pages.page_0x21.isrc_i12_0 = (t->ISRC_serial[4] - '0' << 4);
}
scsi_uto3b(blk_len, dat.blk_desc.blklen);
/*
* Fire it off.
*/
return scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &scsi_cmd,
sizeof(scsi_cmd),
(u_char *) &dat,
dat_len,
/*WORM_RETRIES*/ 4,
5000,
NULL,
SCSI_DATA_OUT);
}
static errval
rf4100_finalize_track(struct scsi_link *sc_link)
{
struct scsi_synchronize_cache cmd;
int error;
SC_DEBUG(sc_link, SDEV_DB2, ("rf4100_finalize_track"));
/*
* Only a "synchronize cache" is needed.
*/
bzero(&cmd, sizeof(cmd));
cmd.op_code = SYNCHRONIZE_CACHE;
error = scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd,
sizeof(cmd),
0, /* no data transfer */
0,
1,
60000, /* this may take a while */
NULL,
0);
if (!error)
error = worm_set_blksize(sc_link, 2048);
return error;
}
static errval
rf4100_finalize_disk(struct scsi_link *sc_link, int toc_type, int onp)
{
struct scsi_fixation cmd;
SC_DEBUG(sc_link, SDEV_DB2, ("rf4100_finalize_disk"));
if (toc_type < 0 || toc_type > WORM_TOC_TYPE_CDI)
return EINVAL;
/*
* Fixate this session. Mark the next one as opened if onp
* is true. Otherwise, the disk will be finalized once and
* for all. ONP stands for "open next program area".
*/
bzero(&cmd, sizeof(cmd));
cmd.op_code = FIXATION;
cmd.action = (onp? WORM_FIXATION_ONP: 0) + toc_type;
return scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd,
sizeof(cmd),
0, /* no data transfer */
0,
1,
20*60*1000, /* takes a huge amount of time */
NULL,
0);
}
/*
* End Plasmon RF4100/4102 section.
*/
/*
* HP C4324/C4325 (This is what the scsi spec. and firmware says)
* Drive model 4020i
* This is very similar to the Plasmon above.
*/
/* The following mode pages might apply to other drives as well. */
struct hp_4020i_pages
{
u_char page_code;
#define HP4020I_PAGE_CODE_20 0x20
#define HP4020I_PAGE_CODE_21 0x21
#define HP4020I_PAGE_CODE_22 0x22
#define HP4020I_PAGE_CODE_23 0x23
#define HP4020I_PAGE_CODE_24 0x24
#define HP4020I_PAGE_CODE_25 0x25
u_char param_len;
union
{
/* page 0x20 omitted by now */
struct
{
u_char reserved1;
u_char mode;
#define HP4020I_RAW_MODE 0x10 /* raw mode enabled */
#define HP4020I_MIXED_MODE 0x08 /* mixed mode data enabled */
#define HP4020I_AUDIO_MODE 0x04 /* audio mode data enabled */
#define HP4020I_MODE_1 0x01 /* mode 1 blocks are enabled */
#define HP4020I_MODE_2 0x02 /* mode 2 blocks are enabled */
u_char track_number;
u_char isrc_i1; /* country code, ASCII */
u_char isrc_i2;
u_char isrc_i3; /* owner code, ASCII */
u_char isrc_i4;
u_char isrc_i5;
u_char isrc_i6_7; /* year code, BCD */
u_char isrc_i8_9; /* serial number, BCD */
u_char isrc_i10_11;
u_char isrc_i12_0;
u_char reserved2[2];
}
page_0x21;
struct
{
u_char catalog_valid;
u_char catalog_c1_c2; /* catalog number, BCD */
u_char catalog_c3_c4;
u_char catalog_c5_c6;
u_char catalog_c7_c8;
u_char catalog_c9_c10;
u_char catalog_c11_c12;
u_char catalog_c13_0;
} page_0x22;
struct
{
u_char speed_select;
#define HP4020I_SPEED_AUDIO 0x01
#define HP4020I_SPEED_DOUBLE 0x02
u_char dummy_write;
#define HP4020I_DUMMY_WRITE 0x01
u_char reserved[4];
}
page_0x23;
/* pages 0x24 and 0x25 omitted by now */
}
pages;
};
static errval
hp4020i_prepare_disk(struct scsi_link *sc_link, int dummy, int speed)
{
struct scsi_mode_select scsi_cmd;
struct {
struct scsi_mode_header header;
struct hp_4020i_pages page;
} dat;
u_int32_t pagelen, dat_len;
pagelen = sizeof(dat.page.pages.page_0x23) + PAGE_HEADERLEN;
dat_len = sizeof(struct scsi_mode_header) + pagelen;
SC_DEBUG(sc_link, SDEV_DB2, ("hp4020i_prepare_disk"));
if (speed != HP4020I_SPEED_AUDIO && speed != HP4020I_SPEED_DOUBLE)
return EINVAL;
/*
* Set up a mode page 0x23
*/
bzero(&dat, sizeof(dat));
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.op_code = MODE_SELECT;
scsi_cmd.byte2 |= SMS_PF;
scsi_cmd.length = dat_len;
/* dat.header.dev_spec = host application code; (see spec) */
dat.page.page_code = HP4020I_PAGE_CODE_23;
dat.page.param_len = sizeof(dat.page.pages.page_0x23);
dat.page.pages.page_0x23.speed_select = speed;
dat.page.pages.page_0x23.dummy_write = dummy? HP4020I_DUMMY_WRITE: 0;
/*
* Fire it off.
*/
return scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &scsi_cmd,
sizeof(scsi_cmd),
(u_char *) &dat,
dat_len,
/*WORM_RETRIES*/ 4,
5000,
NULL,
SCSI_DATA_OUT);
}
static errval
hp4020i_prepare_track(struct scsi_link *sc_link, struct wormio_prepare_track *t)
{
struct scsi_mode_select scsi_cmd;
struct scsi_data *worm;
struct {
struct scsi_mode_header header;
struct blk_desc blk_desc;
struct hp_4020i_pages page;
} dat;
u_int32_t pagelen, dat_len, blk_len;
int year;
worm = sc_link->sd;
pagelen = sizeof(dat.page.pages.page_0x21) + PAGE_HEADERLEN;
dat_len = sizeof(struct scsi_mode_header)
+ sizeof(struct blk_desc)
+ pagelen;
SC_DEBUG(sc_link, SDEV_DB2, ("hp4020i_prepare_track"));
/*
* Set up a mode page 0x21. Note that the block descriptor is
* mandatory in at least one of the MODE SELECT commands, in
* order to select the block length in question. We do this
* here, just prior to opening the write channel. (Spec:
* ``All information for the write is included in the MODE
* SELECT, MODE PAGE 21h, and the write channel can be
* considered open on receipt of the first WRITE command.'' I
* didn't have luck with an explicit WRITE TRACK command
* anyway, this might be different for other CD-R drives. -
* J<>rg)
*/
bzero(&dat, sizeof(dat));
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.op_code = MODE_SELECT;
scsi_cmd.byte2 |= SMS_PF;
scsi_cmd.length = dat_len;
dat.header.blk_desc_len = sizeof(struct blk_desc);
dat.page.page_code = HP4020I_PAGE_CODE_21;
dat.page.param_len = sizeof(dat.page.pages.page_0x21);
/* dat.header.dev_spec = host application code; (see spec) */
if (t->audio) {
blk_len = 2352;
dat.page.pages.page_0x21.mode = HP4020I_AUDIO_MODE +
(t->preemp? HP4020I_MODE_1 : 0);
} else
switch (t->track_type) {
case BLOCK_RAW:
blk_len = 2352;
dat.page.pages.page_0x21.mode = HP4020I_RAW_MODE;
break;
case BLOCK_MODE_1:
blk_len = 2048;
dat.page.pages.page_0x21.mode = HP4020I_MODE_1;
break;
case BLOCK_MODE_2:
blk_len = 2336;
dat.page.pages.page_0x21.mode = HP4020I_MODE_2;
break;
case BLOCK_MODE_2_FORM_1:
blk_len = 2048;
dat.page.pages.page_0x21.mode = HP4020I_MODE_2;
break;
case BLOCK_MODE_2_FORM_1b:
blk_len = 2056;
dat.page.pages.page_0x21.mode = HP4020I_MODE_2;
break;
case BLOCK_MODE_2_FORM_2:
blk_len = 2324;
dat.page.pages.page_0x21.mode = HP4020I_MODE_2;
break;
case BLOCK_MODE_2_FORM_2b:
blk_len = 2332;
dat.page.pages.page_0x21.mode = HP4020I_MODE_2;
break;
default:
return EINVAL;
}
dat.page.pages.page_0x21.mode |= t->copy_bits << 5;
worm->blk_size = blk_len;
dat.page.pages.page_0x21.track_number = t->track_number;
dat.page.pages.page_0x21.isrc_i1 = ascii_to_6bit(t->ISRC_country[0]);
dat.page.pages.page_0x21.isrc_i2 = ascii_to_6bit(t->ISRC_country[1]);
dat.page.pages.page_0x21.isrc_i3 = ascii_to_6bit(t->ISRC_owner[0]);
dat.page.pages.page_0x21.isrc_i4 = ascii_to_6bit(t->ISRC_owner[1]);
dat.page.pages.page_0x21.isrc_i5 = ascii_to_6bit(t->ISRC_owner[2]);
year = t->ISRC_year % 100;
if (year < 0)
return EINVAL;
dat.page.pages.page_0x21.isrc_i6_7 = bin2bcd(year);
if (t->ISRC_serial[0]) {
dat.page.pages.page_0x21.isrc_i8_9 = ((t->ISRC_serial[0]-'0') << 4) |
(t->ISRC_serial[1] - '0');
dat.page.pages.page_0x21.isrc_i10_11 = ((t->ISRC_serial[2]-'0') << 4) |
(t->ISRC_serial[3] - '0');
dat.page.pages.page_0x21.isrc_i12_0 = (t->ISRC_serial[4] - '0' << 4);
}
scsi_uto3b(blk_len, dat.blk_desc.blklen);
/*
* Fire it off.
*/
return scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &scsi_cmd,
sizeof(scsi_cmd),
(u_char *) &dat,
dat_len,
/*WORM_RETRIES*/ 4,
5000,
NULL,
SCSI_DATA_OUT);
}
static errval
hp4020i_finalize_track(struct scsi_link *sc_link)
{
struct scsi_synchronize_cache cmd;
int error;
SC_DEBUG(sc_link, SDEV_DB2, ("hp4020i_finalize_track"));
/*
* Only a "synchronize cache" is needed.
*/
bzero(&cmd, sizeof(cmd));
cmd.op_code = SYNCHRONIZE_CACHE;
error = scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd,
sizeof(cmd),
0, /* no data transfer */
0,
1,
60000, /* this may take a while */
NULL,
0);
if (!error)
error = worm_set_blksize(sc_link, 2048);
return error;
}
static errval
hp4020i_finalize_disk(struct scsi_link *sc_link, int toc_type, int onp)
{
struct scsi_fixation cmd;
SC_DEBUG(sc_link, SDEV_DB2, ("hp4020i_finalize_disk"));
if (toc_type < 0 || toc_type > WORM_TOC_TYPE_CDI)
return EINVAL;
/*
* Fixate this session. Mark the next one as opened if onp
* is true. Otherwise, the disk will be finalized once and
* for all. ONP stands for "open next program area".
*/
bzero(&cmd, sizeof(cmd));
cmd.op_code = FIXATION;
cmd.action = (onp? WORM_FIXATION_ONP: 0) + toc_type;
return scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd,
sizeof(cmd),
0, /* no data transfer */
0,
1,
20*60*1000, /* takes a huge amount of time */
NULL,
0);
}
static errval
hp4020i_write_session(struct scsi_link *sc_link, struct wormio_write_session *ws)
{
struct {
struct scsi_mode_header header;
struct blk_desc blk_desc;
struct hp_4020i_pages page;
} dat;
struct scsi_mode_select cmd1;
struct scsi_write_session cmd2;
struct scsi_data *worm;
u_int32_t pagelen, dat_len, blk_len;
errval error;
SC_DEBUG(sc_link, SDEV_DB2, ("hp4020i_write_session"));
if (ws->toc_type < 0 || ws->toc_type > WORM_TOC_TYPE_CDI || ws->lofp & ~3)
return EINVAL;
pagelen = sizeof(dat.page.pages.page_0x22) + PAGE_HEADERLEN;
dat_len = sizeof(struct scsi_mode_header)
+ sizeof(struct blk_desc)
+ pagelen;
worm = sc_link->sd;
/* set the block size to 2352 and the catalog */
bzero(&dat, sizeof(dat));
bzero(&cmd1, sizeof(cmd1));
cmd1.op_code = MODE_SELECT;
cmd1.byte2 |= SMS_PF;
cmd1.length = dat_len;
dat.header.blk_desc_len = sizeof(struct blk_desc);
dat.page.page_code = HP4020I_PAGE_CODE_22;
dat.page.param_len = sizeof(dat.page.pages.page_0x22);
blk_len = 2352;
if (ws->catalog[0] >= '0' && ws->catalog[0] <= '9') {
dat.page.pages.page_0x22.catalog_valid = 1;
dat.page.pages.page_0x22.catalog_c1_c2 = ((ws->catalog[0]-'0') << 4)
| ((ws->catalog[1]-'0') << 4);
dat.page.pages.page_0x22.catalog_c3_c4 = ((ws->catalog[2]-'0') << 4)
| ((ws->catalog[3]-'0') << 4);
dat.page.pages.page_0x22.catalog_c5_c6 = ((ws->catalog[4]-'0') << 4)
| ((ws->catalog[5]-'0') << 4);
dat.page.pages.page_0x22.catalog_c7_c8 = ((ws->catalog[6]-'0') << 4)
| ((ws->catalog[7]-'0') << 4);
dat.page.pages.page_0x22.catalog_c9_c10 = ((ws->catalog[8]-'0') << 4)
| ((ws->catalog[9]-'0') << 4);
dat.page.pages.page_0x22.catalog_c11_c12 = ((ws->catalog[10]-'0') << 4)
| ((ws->catalog[11]-'0') << 4);
dat.page.pages.page_0x22.catalog_c13_0 = ((ws->catalog[12]-'0') << 4);
}
scsi_uto3b(blk_len, dat.blk_desc.blklen);
error = scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd1,
sizeof(cmd1),
(u_char *) &dat,
dat_len,
/*WORM_RETRIES*/ 4,
5000,
NULL,
SCSI_DATA_OUT);
if (!error) {
worm->blk_size = blk_len;
bzero(&cmd2, sizeof(cmd2));
cmd2.op_code = WRITE_SESSION;
cmd2.action = (ws->lofp << 4) | (ws->onp? WORM_FIXATION_ONP: 0) + ws->toc_type;
scsi_uto2b(ws->length, &cmd2.transfer_length_2);
error = scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd2,
sizeof(cmd2),
ws->track_desc,
ws->length,
1,
5000,
NULL,
SCSI_DATA_OUT);
}
return error;
}
static errval
hp4020i_read_first_writable_address (struct scsi_link *sc_link,
int track, int mode, int raw, int audio, int *addr)
{
struct scsi_first_writable_address cmd;
char data[6];
errval error;
SC_DEBUG(sc_link, SDEV_DB2, ("worm_read_first_writable_address"));
bzero(&cmd, sizeof(cmd));
cmd.op_code = FIRST_WRITEABLE_ADDR;
cmd.track_number = track;
cmd.mode = (raw << 3) | (audio << 2) | mode;
cmd.transfer_length = sizeof(data);
error = scsi_scsi_cmd(sc_link,
(struct scsi_generic *) &cmd,
sizeof(cmd),
(u_char *) data,
sizeof(data),
/*WORMRETRY*/ 4,
5000,
NULL,
SCSI_DATA_IN);
*addr = scsi_4btou (data+1);
return error;
}
/*
* End HP C4324/C4325 (4020i) section.
*/
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