ukphy.c revision 1.51
1 /* $NetBSD: ukphy.c,v 1.51 2019/03/25 09:20:46 msaitoh Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center, and by Frank van der Linden. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1997 Manuel Bouyer. 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 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 */ 56 57 /* 58 * driver for generic unknown PHYs 59 */ 60 61 #include <sys/cdefs.h> 62 __KERNEL_RCSID(0, "$NetBSD: ukphy.c,v 1.51 2019/03/25 09:20:46 msaitoh Exp $"); 63 64 #ifdef _KERNEL_OPT 65 #include "opt_mii.h" 66 #endif 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/kernel.h> 71 #include <sys/device.h> 72 #include <sys/socket.h> 73 #include <sys/errno.h> 74 75 #include <net/if.h> 76 #include <net/if_media.h> 77 78 #include <dev/mii/mii.h> 79 #include <dev/mii/miivar.h> 80 81 static int ukphymatch(device_t, cfdata_t, void *); 82 static void ukphyattach(device_t, device_t, void *); 83 84 CFATTACH_DECL3_NEW(ukphy, sizeof(struct mii_softc), 85 ukphymatch, ukphyattach, mii_phy_detach, mii_phy_activate, NULL, NULL, 86 DVF_DETACH_SHUTDOWN); 87 88 static int ukphy_service(struct mii_softc *, struct mii_data *, int); 89 90 static const struct mii_phy_funcs ukphy_funcs = { 91 ukphy_service, ukphy_status, mii_phy_reset, 92 }; 93 94 static int 95 ukphymatch(device_t parent, cfdata_t match, void *aux) 96 { 97 98 /* 99 * We know something is here, so always match at a low priority. 100 */ 101 return 1; 102 } 103 104 static void 105 ukphyattach(device_t parent, device_t self, void *aux) 106 { 107 struct mii_softc *sc = device_private(self); 108 struct mii_attach_args *ma = aux; 109 struct mii_data *mii = ma->mii_data; 110 int oui = MII_OUI(ma->mii_id1, ma->mii_id2); 111 int model = MII_MODEL(ma->mii_id2); 112 int rev = MII_REV(ma->mii_id2); 113 const char *descr; 114 115 if ((descr = mii_get_descr(oui, model)) != NULL) 116 aprint_normal(": %s (OUI 0x%06x, model 0x%04x), rev. %d\n", 117 descr, oui, model, rev); 118 else 119 aprint_normal(": OUI 0x%06x, model 0x%04x, rev. %d\n", 120 oui, model, rev); 121 aprint_naive(": Media interface\n"); 122 123 sc->mii_dev = self; 124 sc->mii_inst = mii->mii_instance; 125 sc->mii_phy = ma->mii_phyno; 126 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 127 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 128 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 129 sc->mii_funcs = &ukphy_funcs; 130 sc->mii_pdata = mii; 131 sc->mii_flags = ma->mii_flags; 132 sc->mii_anegticks = MII_ANEGTICKS; 133 134 /* 135 * Don't do loopback on unknown PHYs. It might confuse some of them. 136 */ 137 sc->mii_flags |= MIIF_NOLOOP; 138 139 PHY_RESET(sc); 140 141 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 142 sc->mii_capabilities &= ma->mii_capmask; 143 if (sc->mii_capabilities & BMSR_EXTSTAT) 144 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 145 aprint_normal_dev(self, ""); 146 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 147 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 148 aprint_error("no media present"); 149 else 150 mii_phy_add_media(sc); 151 aprint_normal("\n"); 152 } 153 154 static int 155 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 156 { 157 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 158 uint16_t reg; 159 160 switch (cmd) { 161 case MII_POLLSTAT: 162 /* If we're not polling our PHY instance, just return. */ 163 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 164 return 0; 165 break; 166 167 case MII_MEDIACHG: 168 /* 169 * If the media indicates a different PHY instance, 170 * isolate ourselves. 171 */ 172 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 173 PHY_READ(sc, MII_BMCR, ®); 174 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 175 return 0; 176 } 177 178 /* If the interface is not up, don't do anything. */ 179 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 180 break; 181 182 mii_phy_setmedia(sc); 183 break; 184 185 case MII_TICK: 186 /* If we're not currently selected, just return. */ 187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 188 return 0; 189 190 if (mii_phy_tick(sc) == EJUSTRETURN) 191 return 0; 192 break; 193 194 case MII_DOWN: 195 mii_phy_down(sc); 196 return 0; 197 } 198 199 /* Update the media status. */ 200 mii_phy_status(sc); 201 202 /* Callback if something changed. */ 203 mii_phy_update(sc, cmd); 204 return 0; 205 } 206
Indexes created Sat Sep 27 14:09:57 GMT 2025