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- #include <sys/types.h>
- #include <sys/param.h>
- #include <sys/systm.h>
- #include <sys/errno.h>
- #include <sys/ioctl.h>
- #include <sys/conf.h>
- #include <sys/device.h>
- #include <sys/vnode.h>
- #include <scsi/scsi_all.h>
- #include <scsi/scsiconf.h>
- #define UKUNIT(z) (minor(z))
- struct uk_softc {
- struct device sc_dev;
- struct scsi_link *sc_link;
- };
- int ukmatch(struct device *, void *, void *);
- void ukattach(struct device *, struct device *, void *);
- int ukdetach(struct device *, int);
- struct cfattach uk_ca = {
- sizeof(struct uk_softc), ukmatch, ukattach, ukdetach
- };
- struct cfdriver uk_cd = {
- NULL, "uk", DV_DULL
- };
- #define uklookup(unit) (struct uk_softc *)device_lookup(&uk_cd, (unit))
- int
- ukmatch(struct device *parent, void *match, void *aux)
- {
- return (1);
- }
- void
- ukattach(struct device *parent, struct device *self, void *aux)
- {
- struct uk_softc *sc = (void *)self;
- struct scsi_attach_args *sa = aux;
- struct scsi_link *sc_link = sa->sa_sc_link;
- SC_DEBUG(sc_link, SDEV_DB2, ("ukattach: "));
-
- sc->sc_link = sc_link;
- sc_link->device_softc = sc;
- sc_link->openings = 1;
- printf("\n");
- }
- int
- ukdetach(struct device *self, int flags)
- {
- int bmaj, cmaj, mn;
- mn = self->dv_unit;
- for (bmaj = 0; bmaj < nblkdev; bmaj++)
- if (bdevsw[bmaj].d_open == ukopen)
- vdevgone(bmaj, mn, mn, VBLK);
- for (cmaj = 0; cmaj < nchrdev; cmaj++)
- if (cdevsw[cmaj].d_open == ukopen)
- vdevgone(cmaj, mn, mn, VCHR);
- return (0);
- }
- int
- ukopen(dev_t dev, int flag, int fmt, struct proc *p)
- {
- int unit;
- struct uk_softc *sc;
- struct scsi_link *sc_link;
- unit = UKUNIT(dev);
- sc = uklookup(unit);
- if (sc == NULL)
- return (ENXIO);
- sc_link = sc->sc_link;
- SC_DEBUG(sc_link, SDEV_DB1, ("ukopen: dev=0x%x (unit %d (of %d))\n",
- dev, unit, uk_cd.cd_ndevs));
-
- if (sc_link->flags & SDEV_OPEN) {
- device_unref(&sc->sc_dev);
- return (EBUSY);
- }
- sc_link->flags |= SDEV_OPEN;
- SC_DEBUG(sc_link, SDEV_DB3, ("open complete\n"));
- device_unref(&sc->sc_dev);
- return (0);
- }
- int
- ukclose(dev_t dev, int flag, int fmt, struct proc *p)
- {
- struct uk_softc *sc;
- sc = uklookup(UKUNIT(dev));
- if (sc == NULL)
- return (ENXIO);
- SC_DEBUG(sc->sc_link, SDEV_DB1, ("closing\n"));
- sc->sc_link->flags &= ~SDEV_OPEN;
- device_unref(&sc->sc_dev);
- return (0);
- }
- int
- ukioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
- {
- int rv;
- struct uk_softc *sc;
- sc = uklookup(UKUNIT(dev));
- if (sc == NULL)
- return (ENXIO);
- rv = scsi_do_ioctl(sc->sc_link, cmd, addr, flag);
- device_unref(&sc->sc_dev);
- return (rv);
- }
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