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      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
     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
    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