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 | |
42 | void |
43 | agrport_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 | |