1 /* $NetBSD: mii_ethersubr.c,v 1.3 2020/03/15 23:04:50 thorpej Exp $ */
2
3 /*
4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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 * 3. Neither the name of the project nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 /*
33 * Copyright (c) 1982, 1989, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)if_ethersubr.c 8.2 (Berkeley) 4/4/96
61 */
62
63 #include <sys/cdefs.h>
64 __KERNEL_RCSID(0, "$NetBSD: mii_ethersubr.c,v 1.3 2020/03/15 23:04:50 thorpej Exp $");
65
66 #define __IFMEDIA_PRIVATE
67
68 #include <sys/param.h>
69 #include <sys/systm.h>
70 #include <sys/kernel.h>
71 #include <sys/errno.h>
72 #include <sys/device.h>
73
74 #include <net/if.h>
75 #include <net/if_types.h>
76
77 #include <net/if_ether.h>
78 #include <net/if_media.h>
79 #include <dev/mii/mii.h>
80 #include <dev/mii/miivar.h>
81
82 int
ether_mediachange(struct ifnet * ifp)83 ether_mediachange(struct ifnet *ifp)
84 {
85 struct ethercom *ec = (struct ethercom *)ifp;
86 int rc;
87
88 KASSERT(ec->ec_mii != NULL);
89 KASSERT(mii_locked(ec->ec_mii) ||
90 ifmedia_islegacy(&ec->ec_mii->mii_media));
91
92 if ((ifp->if_flags & IFF_UP) == 0)
93 return 0;
94 if ((rc = mii_mediachg(ec->ec_mii)) == ENXIO)
95 return 0;
96 return rc;
97 }
98
99 void
ether_mediastatus(struct ifnet * ifp,struct ifmediareq * ifmr)100 ether_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
101 {
102 struct ethercom *ec = (struct ethercom *)ifp;
103 struct mii_data *mii;
104
105 KASSERT(ec->ec_mii != NULL);
106 KASSERT(mii_locked(ec->ec_mii) ||
107 ifmedia_islegacy(&ec->ec_mii->mii_media));
108
109 #ifdef notyet
110 if ((ifp->if_flags & IFF_RUNNING) == 0) {
111 ifmr->ifm_active = IFM_ETHER | IFM_NONE;
112 ifmr->ifm_status = 0;
113 return;
114 }
115 #endif
116
117 mii = ec->ec_mii;
118
119 mii_pollstat(mii);
120 ifmr->ifm_active = mii->mii_media_active;
121 ifmr->ifm_status = mii->mii_media_status;
122 }
123