int
sdactivate(struct device *self, int act)
{
struct sd_softc *sc = (struct sd_softc *)self;
int rv = 0;
switch (act) {
case DVACT_SUSPEND:
/*
* Stop the disk. Stopping the disk should flush the
* cache, but we are paranoid so we flush the cache
* first.
*/
if ((sc->flags & SDF_DIRTY) != 0)
sd_flush(sc, SCSI_AUTOCONF);
scsi_start(sc->sc_link, SSS_STOP,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_AUTOCONF);
break;
case DVACT_RESUME:
scsi_start(sc->sc_link, SSS_START,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_AUTOCONF);
break;
case DVACT_DEACTIVATE:
sc->flags |= SDF_DYING;
scsi_xsh_del(&sc->sc_xsh);
break;
}
return (rv);
}
/*
* Close the device. Only called if we are the last occurrence of an open
* device. Convenient now but usually a pain.
*/
int
sdclose(dev_t dev, int flag, int fmt, struct proc *p)
{
struct sd_softc *sc;
int part = DISKPART(dev);
int error;
sc = sdlookup(DISKUNIT(dev));
if (sc == NULL)
return (ENXIO);
if (sc->flags & SDF_DYING) {
device_unref(&sc->sc_dev);
return (ENXIO);
}
if ((error = sdlock(sc)) != 0) {
device_unref(&sc->sc_dev);
return (error);
}
switch (fmt) {
case S_IFCHR:
sc->sc_dk.dk_copenmask &= ~(1 << part);
break;
case S_IFBLK:
sc->sc_dk.dk_bopenmask &= ~(1 << part);
break;
}
sc->sc_dk.dk_openmask = sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask;
if (sc->sc_dk.dk_openmask == 0) {
if ((sc->flags & SDF_DIRTY) != 0)
sd_flush(sc, 0);
if ((sc->sc_link->flags & SDEV_REMOVABLE) != 0)
scsi_prevent(sc->sc_link, PR_ALLOW,
SCSI_IGNORE_ILLEGAL_REQUEST |
SCSI_IGNORE_NOT_READY | SCSI_SILENT);
sc->sc_link->flags &= ~(SDEV_OPEN | SDEV_MEDIA_LOADED);
if (sc->sc_link->flags & SDEV_EJECTING) {
scsi_start(sc->sc_link, SSS_STOP|SSS_LOEJ, 0);
sc->sc_link->flags &= ~SDEV_EJECTING;
}
timeout_del(&sc->sc_timeout);
}
sdunlock(sc);
device_unref(&sc->sc_dev);
return 0;
}
void
sd_shutdown(void *arg)
{
struct sd_softc *sc = (struct sd_softc *)arg;
/*
* If the disk cache needs to be flushed, and the disk supports
* it, flush it. We're cold at this point, so we poll for
* completion.
*/
if ((sc->flags & SDF_DIRTY) != 0)
sd_flush(sc, SCSI_AUTOCONF);
}
int
sdactivate(struct device *self, int act)
{
struct sd_softc *sc = (struct sd_softc *)self;
int rv = 0;
switch (act) {
case DVACT_SUSPEND:
/*
* We flush the cache, since we our next step before
* DVACT_POWERDOWN might be a hibernate operation.
*/
if ((sc->flags & SDF_DIRTY) != 0)
sd_flush(sc, SCSI_AUTOCONF);
break;
case DVACT_POWERDOWN:
/*
* Stop the disk. Stopping the disk should flush the
* cache, but we are paranoid so we flush the cache
* first.
*/
if ((sc->flags & SDF_DIRTY) != 0)
sd_flush(sc, SCSI_AUTOCONF);
if (boothowto & RB_POWERDOWN)
scsi_start(sc->sc_link, SSS_STOP,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_AUTOCONF);
break;
case DVACT_RESUME:
scsi_start(sc->sc_link, SSS_START,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_AUTOCONF);
break;
case DVACT_DEACTIVATE:
sc->flags |= SDF_DYING;
scsi_xsh_del(&sc->sc_xsh);
break;
}
return (rv);
}
/*
* Close the device. Only called if we are the last occurrence of an open
* device. Convenient now but usually a pain.
*/
int
sdclose(dev_t dev, int flag, int fmt, struct proc *p)
{
struct sd_softc *sc;
int part = DISKPART(dev);
sc = sdlookup(DISKUNIT(dev));
if (sc == NULL)
return (ENXIO);
if (sc->flags & SDF_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) {
if ((sc->flags & SDF_DIRTY) != 0)
sd_flush(sc, 0);
if ((sc->sc_link->flags & SDEV_REMOVABLE) != 0)
scsi_prevent(sc->sc_link, PR_ALLOW,
SCSI_IGNORE_ILLEGAL_REQUEST |
SCSI_IGNORE_NOT_READY | SCSI_SILENT);
sc->sc_link->flags &= ~(SDEV_OPEN | SDEV_MEDIA_LOADED);
if (sc->sc_link->flags & SDEV_EJECTING) {
scsi_start(sc->sc_link, SSS_STOP|SSS_LOEJ, 0);
sc->sc_link->flags &= ~SDEV_EJECTING;
}
timeout_del(&sc->sc_timeout);
scsi_xsh_del(&sc->sc_xsh);
}
disk_unlock(&sc->sc_dk);
device_unref(&sc->sc_dev);
return 0;
}
void
sd_shutdown(void *arg)
{
struct sd_softc *sc = (struct sd_softc *)arg;
/*
* If the disk cache needs to be flushed, and the disk supports
* it, flush it. We're cold at this point, so we poll for
* completion.
*/
if ((sc->flags & SDF_DIRTY) != 0)
sd_flush(sc, SCSI_AUTOCONF);
if (boothowto & RB_POWERDOWN)
scsi_start(sc->sc_link, SSS_STOP,
SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_AUTOCONF);
/*
* There should be no outstanding IO at this point, but lets stop
* it just in case.
*/
timeout_del(&sc->sc_timeout);
scsi_xsh_del(&sc->sc_xsh);
}
/*
* Perform special action on behalf of the user
* Knows about the internals of this device
*/
int
sdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
{
struct sd_softc *sc;
struct disklabel *lp;
int error = 0;
int part = DISKPART(dev);
sc = sdlookup(DISKUNIT(dev));
if (sc == NULL)
return (ENXIO);
if (sc->flags & SDF_DYING) {
device_unref(&sc->sc_dev);
return (ENXIO);
}
SC_DEBUG(sc->sc_link, SDEV_DB2, ("sdioctl 0x%lx\n", cmd));
/*
* If the device is not valid.. abandon ship
*/
if ((sc->sc_link->flags & SDEV_MEDIA_LOADED) == 0) {
switch (cmd) {
case DIOCLOCK:
case DIOCEJECT:
case SCIOCIDENTIFY:
case SCIOCCOMMAND:
case SCIOCDEBUG:
if (part == RAW_PART)
break;
/* FALLTHROUGH */
default:
if ((sc->sc_link->flags & SDEV_OPEN) == 0) {
error = ENODEV;
goto exit;
} else {
error = EIO;
goto exit;
}
}
}
switch (cmd) {
case DIOCRLDINFO:
lp = malloc(sizeof(*lp), M_TEMP, M_WAITOK);
sdgetdisklabel(dev, sc, lp, 0);
bcopy(lp, sc->sc_dk.dk_label, sizeof(*lp));
free(lp, M_TEMP);
goto exit;
case DIOCGPDINFO:
sdgetdisklabel(dev, sc, (struct disklabel *)addr, 1);
goto exit;
case DIOCGDINFO:
*(struct disklabel *)addr = *(sc->sc_dk.dk_label);
goto exit;
case DIOCGPART:
((struct partinfo *)addr)->disklab = sc->sc_dk.dk_label;
((struct partinfo *)addr)->part =
&sc->sc_dk.dk_label->d_partitions[DISKPART(dev)];
goto exit;
case DIOCWDINFO:
case DIOCSDINFO:
if ((flag & FWRITE) == 0) {
error = EBADF;
goto exit;
}
if ((error = disk_lock(&sc->sc_dk)) != 0)
goto exit;
error = setdisklabel(sc->sc_dk.dk_label,
(struct disklabel *)addr, sc->sc_dk.dk_openmask);
if (error == 0) {
if (cmd == DIOCWDINFO)
error = writedisklabel(DISKLABELDEV(dev),
sdstrategy, sc->sc_dk.dk_label);
}
disk_unlock(&sc->sc_dk);
goto exit;
case DIOCLOCK:
error = scsi_prevent(sc->sc_link,
(*(int *)addr) ? PR_PREVENT : PR_ALLOW, 0);
goto exit;
case MTIOCTOP:
if (((struct mtop *)addr)->mt_op != MTOFFL) {
error = EIO;
goto exit;
}
/* FALLTHROUGH */
case DIOCEJECT:
if ((sc->sc_link->flags & SDEV_REMOVABLE) == 0) {
error = ENOTTY;
goto exit;
}
sc->sc_link->flags |= SDEV_EJECTING;
goto exit;
case DIOCINQ:
error = scsi_do_ioctl(sc->sc_link, cmd, addr, flag);
if (error == ENOTTY)
error = sd_ioctl_inquiry(sc,
(struct dk_inquiry *)addr);
goto exit;
case DIOCSCACHE:
if (!ISSET(flag, FWRITE)) {
error = EBADF;
goto exit;
}
/* FALLTHROUGH */
case DIOCGCACHE:
error = sd_ioctl_cache(sc, cmd, (struct dk_cache *)addr);
goto exit;
case DIOCCACHESYNC:
if (!ISSET(flag, FWRITE)) {
error = EBADF;
goto exit;
}
if ((sc->flags & SDF_DIRTY) != 0 || *(int *)addr != 0)
error = sd_flush(sc, 0);
return (error);
default:
if (part != RAW_PART) {
error = ENOTTY;
goto exit;
}
error = scsi_do_ioctl(sc->sc_link, cmd, addr, flag);
}
exit:
device_unref(&sc->sc_dev);
return (error);
}
