/* $OpenBSD: owid.c,v 1.1 2006/03/04 16:27:03 grange Exp $ */ /* * Copyright (c) 2006 Alexander Yurchenko * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * 1-Wire ID family type device driver. */ #include #include #include #include #include #include #include #include #include struct owid_softc { struct device sc_dev; void * sc_onewire; u_int64_t sc_rom; struct sensor sc_sensor; int sc_dying; }; int owid_match(struct device *, void *, void *); void owid_attach(struct device *, struct device *, void *); int owid_detach(struct device *, int); int owid_activate(struct device *, enum devact); struct cfattach owid_ca = { sizeof(struct owid_softc), owid_match, owid_attach, owid_detach, owid_activate }; struct cfdriver owid_cd = { NULL, "owid", DV_DULL }; static const struct onewire_matchfam owid_fams[] = { { ONEWIRE_FAMILY_DS1990 } }; int owid_match(struct device *parent, void *match, void *aux) { return (onewire_matchbyfam(aux, owid_fams, sizeof(owid_fams) /sizeof(owid_fams[0]))); } void owid_attach(struct device *parent, struct device *self, void *aux) { struct owid_softc *sc = (struct owid_softc *)self; struct onewire_attach_args *oa = aux; sc->sc_onewire = oa->oa_onewire; sc->sc_rom = oa->oa_rom; /* Initialize sensor */ strlcpy(sc->sc_sensor.device, sc->sc_dev.dv_xname, sizeof(sc->sc_sensor.device)); sc->sc_sensor.type = SENSOR_INTEGER; strlcpy(sc->sc_sensor.desc, "ID", sizeof(sc->sc_sensor.desc)); sc->sc_sensor.value = ONEWIRE_ROM_SN(sc->sc_rom); sensor_add(&sc->sc_sensor); printf("\n"); } int owid_detach(struct device *self, int flags) { struct owid_softc *sc = (struct owid_softc *)self; sensor_del(&sc->sc_sensor); return (0); } int owid_activate(struct device *self, enum devact act) { struct owid_softc *sc = (struct owid_softc *)self; switch (act) { case DVACT_ACTIVATE: return (EOPNOTSUPP); case DVACT_DEACTIVATE: sc->sc_dying = 1; break; } return (0); }