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Annotation of sys/dev/bluetooth/bthub.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: bthub.c,v 1.3 2007/07/23 14:45:38 mk Exp $    */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2007 Uwe Stuehler <uwe@openbsd.org>
        !             5:  *
        !             6:  * Permission to use, copy, modify, and distribute this software for any
        !             7:  * purpose with or without fee is hereby granted, provided that the above
        !             8:  * copyright notice and this permission notice appear in all copies.
        !             9:  *
        !            10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17:  */
        !            18:
        !            19: #include <sys/param.h>
        !            20: #include <sys/systm.h>
        !            21: #include <sys/conf.h>
        !            22: #include <sys/device.h>
        !            23: #include <sys/ioctl.h>
        !            24: #include <sys/vnode.h>
        !            25:
        !            26: #include <netbt/bluetooth.h>
        !            27:
        !            28: struct bthub_softc {
        !            29:        struct device sc_dev;
        !            30:        int sc_open;
        !            31: };
        !            32:
        !            33: int    bthub_match(struct device *, void *, void *);
        !            34: void   bthub_attach(struct device *, struct device *, void *);
        !            35: int    bthub_detach(struct device *, int);
        !            36:
        !            37: struct cfattach bthub_ca = {
        !            38:        sizeof(struct bthub_softc), bthub_match, bthub_attach, bthub_detach
        !            39: };
        !            40:
        !            41: struct cfdriver bthub_cd = {
        !            42:        NULL, "bthub", DV_DULL
        !            43: };
        !            44:
        !            45: int
        !            46: bthub_match(struct device *parent, void *match, void *aux)
        !            47: {
        !            48:        return (1);
        !            49: }
        !            50:
        !            51: void
        !            52: bthub_attach(struct device *parent, struct device *self, void *aux)
        !            53: {
        !            54:        bdaddr_t *addr = aux;
        !            55:        struct bthub_softc *sc = (struct bthub_softc *)self;
        !            56:
        !            57:        sc->sc_open = 0;
        !            58:
        !            59:        printf(" %02x:%02x:%02x:%02x:%02x:%02x\n",
        !            60:            addr->b[5], addr->b[4], addr->b[3],
        !            61:            addr->b[2], addr->b[1], addr->b[0]);
        !            62: }
        !            63:
        !            64: int
        !            65: bthub_detach(struct device *self, int flags)
        !            66: {
        !            67:        int maj, mn;
        !            68:
        !            69:        /* Locate the major number */
        !            70:        for (maj = 0; maj < nchrdev; maj++)
        !            71:                if (cdevsw[maj].d_open == bthubopen)
        !            72:                        break;
        !            73:
        !            74:        /* Nuke the vnodes for any open instances (calls close) */
        !            75:        mn = self->dv_unit;
        !            76:        vdevgone(maj, mn, mn, VCHR);
        !            77:
        !            78:        return (0);
        !            79: }
        !            80:
        !            81: int
        !            82: bthubopen(dev_t dev, int flag, int mode, struct proc *p)
        !            83: {
        !            84:        struct device *dv;
        !            85:        struct bthub_softc *sc;
        !            86:
        !            87:        dv = device_lookup(&bthub_cd, minor(dev));
        !            88:        if (dv == NULL)
        !            89:                return (ENXIO);
        !            90:
        !            91:        sc = (struct bthub_softc *)dv;
        !            92:        if (sc->sc_open) {
        !            93:                device_unref(dv);
        !            94:                return (EBUSY);
        !            95:        }
        !            96:
        !            97:        sc->sc_open = 1;
        !            98:        device_unref(dv);
        !            99:
        !           100:        return (0);
        !           101: }
        !           102:
        !           103: int
        !           104: bthubclose(dev_t dev, int flag, int mode, struct proc *p)
        !           105: {
        !           106:        struct device *dv;
        !           107:        struct bthub_softc *sc;
        !           108:
        !           109:        dv = device_lookup(&bthub_cd, minor(dev));
        !           110:        sc = (struct bthub_softc *)dv;
        !           111:        sc->sc_open = 0;
        !           112:        device_unref(dv);
        !           113:
        !           114:        return (0);
        !           115: }
        !           116:
        !           117: int
        !           118: bthubioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
        !           119: {
        !           120:        return (ENOTTY);
        !           121: }
        !           122: