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