static int
chioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l)
{
struct ch_softc *sc = device_lookup_private(&ch_cd, CHUNIT(dev));
int error = 0;
/*
* If this command can change the device's state, we must
* have the device open for writing.
*/
switch (cmd) {
case CHIOGPICKER:
case CHIOGPARAMS:
case OCHIOGSTATUS:
break;
default:
if ((flags & FWRITE) == 0)
return (EBADF);
}
switch (cmd) {
case CHIOMOVE:
error = ch_move(sc, (struct changer_move_request *)data);
break;
case CHIOEXCHANGE:
error = ch_exchange(sc,
(struct changer_exchange_request *)data);
break;
case CHIOPOSITION:
error = ch_position(sc,
(struct changer_position_request *)data);
break;
case CHIOGPICKER:
*(int *)data = sc->sc_picker - sc->sc_firsts[CHET_MT];
break;
case CHIOSPICKER:
{
int new_picker = *(int *)data;
if (new_picker > (sc->sc_counts[CHET_MT] - 1))
return (EINVAL);
sc->sc_picker = sc->sc_firsts[CHET_MT] + new_picker;
break;
}
case CHIOGPARAMS:
{
struct changer_params *cp = (struct changer_params *)data;
cp->cp_curpicker = sc->sc_picker - sc->sc_firsts[CHET_MT];
cp->cp_npickers = sc->sc_counts[CHET_MT];
cp->cp_nslots = sc->sc_counts[CHET_ST];
cp->cp_nportals = sc->sc_counts[CHET_IE];
cp->cp_ndrives = sc->sc_counts[CHET_DT];
break;
}
case CHIOIELEM:
error = ch_ielem(sc);
if (error == 0) {
sc->sc_periph->periph_flags |= PERIPH_MEDIA_LOADED;
}
break;
case OCHIOGSTATUS:
{
struct ochanger_element_status_request *cesr =
(struct ochanger_element_status_request *)data;
error = ch_ousergetelemstatus(sc, cesr->cesr_type,
cesr->cesr_data);
break;
}
case CHIOGSTATUS:
error = ch_usergetelemstatus(sc,
(struct changer_element_status_request *)data);
break;
case CHIOSVOLTAG:
error = ch_setvoltag(sc,
(struct changer_set_voltag_request *)data);
break;
/* Implement prevent/allow? */
default:
error = scsipi_do_ioctl(sc->sc_periph, dev, cmd, data,
flags, l);
break;
}
return (error);
}
int
chioctl(dev_t dev, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct ch_softc *sc = ch_cd.cd_devs[CHUNIT(dev)];
int error = 0;
/*
* If this command can change the device's state, we must
* have the device open for writing.
*/
switch (cmd) {
case CHIOGPICKER:
case CHIOGPARAMS:
case CHIOGSTATUS:
break;
default:
if ((flags & FWRITE) == 0)
return (EBADF);
}
switch (cmd) {
case CHIOMOVE:
error = ch_move(sc, (struct changer_move *)data);
break;
case CHIOEXCHANGE:
error = ch_exchange(sc, (struct changer_exchange *)data);
break;
case CHIOPOSITION:
error = ch_position(sc, (struct changer_position *)data);
break;
case CHIOGPICKER:
*(int *)data = sc->sc_picker - sc->sc_firsts[CHET_MT];
break;
case CHIOSPICKER: {
int new_picker = *(int *)data;
if (new_picker > (sc->sc_counts[CHET_MT] - 1))
return (EINVAL);
sc->sc_picker = sc->sc_firsts[CHET_MT] + new_picker;
break; }
case CHIOGPARAMS: {
struct changer_params *cp = (struct changer_params *)data;
cp->cp_curpicker = sc->sc_picker - sc->sc_firsts[CHET_MT];
cp->cp_npickers = sc->sc_counts[CHET_MT];
cp->cp_nslots = sc->sc_counts[CHET_ST];
cp->cp_nportals = sc->sc_counts[CHET_IE];
cp->cp_ndrives = sc->sc_counts[CHET_DT];
break; }
case CHIOGSTATUS: {
struct changer_element_status_request *cesr =
(struct changer_element_status_request *)data;
error = ch_usergetelemstatus(sc, cesr);
break; }
/* Implement prevent/allow? */
default:
error = scsi_do_ioctl(sc->sc_link, cmd, data, flags);
break;
}
return (error);
}
