1/* $NetBSD: if_agrmonitor.c,v 1.4 2008/03/24 09:14:52 yamt Exp $ */
2
3/*-
4 * Copyright (c)2005 YAMAMOTO Takashi,
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__KERNEL_RCSID(0, "$NetBSD: if_agrmonitor.c,v 1.4 2008/03/24 09:14:52 yamt Exp $");
31
32#include <sys/param.h>
33#include <sys/callout.h>
34#include <sys/systm.h>
35
36#include <net/if.h>
37#include <net/if_media.h>
38
39#include <net/agr/if_agrvar_impl.h>
40#include <net/agr/if_agrsubr.h>
41
42void
43agrport_monitor(struct agr_port *port)
44{
45 struct agr_softc *sc = AGR_SC_FROM_PORT(port);
46 u_int media;
47 u_int status;
48
49 /*
50 * XXX XXX
51 * assuming that it's safe to use SIOCGIFMEDIA from callout handler.
52 * maybe it's better to have a worker thread.
53 */
54
55 media = IFM_ETHER | IFM_NONE;
56 status = IFM_AVALID;
57 if ((~port->port_ifp->if_flags & (IFF_RUNNING | IFF_UP))
58 == 0) {
59 int error;
60
61 error = agr_port_getmedia(port, &media, &status);
62 if (error) {
63#if defined(DEBUG)
64 printf("getmedia: error %d\n", error);
65#endif /* defined(DEBUG) */
66 }
67 }
68
69 if ((status & (IFM_AVALID | IFM_ACTIVE)) == IFM_AVALID) {
70 media = IFM_ETHER | IFM_NONE; /* XXX ether */
71 }
72
73 if (media == IFM_NONE) {
74 /*
75 * possible eg. when the phy is not configured.
76 */
77#if defined(DEBUG)
78 printf("%s: IFM_NONE\n", __func__);
79#endif /* defined(DEBUG) */
80 media = IFM_ETHER | IFM_NONE; /* XXX ether */
81 }
82
83 if (port->port_media == media) {
84 return;
85 }
86
87 port->port_media = media;
88 if (sc->sc_iftop->iftop_portstate) {
89 (*sc->sc_iftop->iftop_portstate)(port);
90 }
91}
92