ukphy.c revision 1.38
1 /* $NetBSD: ukphy.c,v 1.38 2009/10/19 18:41:14 bouyer 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 1.38 2009/10/19 18:41:14 bouyer Exp $"); 63 64 #include "opt_mii.h" 65 66 #include <sys/param.h> 67 #include <sys/systm.h> 68 #include <sys/kernel.h> 69 #include <sys/device.h> 70 #include <sys/socket.h> 71 #include <sys/errno.h> 72 73 #include <net/if.h> 74 #include <net/if_media.h> 75 76 #include <dev/mii/mii.h> 77 #include <dev/mii/miivar.h> 78 79 #ifdef MIIVERBOSE 80 struct mii_knowndev { 81 int oui; 82 int model; 83 const char *descr; 84 }; 85 #include <dev/mii/miidevs.h> 86 #include <dev/mii/miidevs_data.h> 87 #endif 88 89 static int ukphymatch(device_t, cfdata_t, void *); 90 static void ukphyattach(device_t, device_t, void *); 91 92 CFATTACH_DECL_NEW(ukphy, sizeof(struct mii_softc), 93 ukphymatch, ukphyattach, mii_phy_detach, mii_phy_activate); 94 95 static int ukphy_service(struct mii_softc *, struct mii_data *, int); 96 97 static const struct mii_phy_funcs ukphy_funcs = { 98 ukphy_service, ukphy_status, mii_phy_reset, 99 }; 100 101 static int 102 ukphymatch(device_t parent, cfdata_t match, void *aux) 103 { 104 105 /* 106 * We know something is here, so always match at a low priority. 107 */ 108 return (1); 109 } 110 111 static void 112 ukphyattach(device_t parent, device_t self, void *aux) 113 { 114 struct mii_softc *sc = device_private(self); 115 struct mii_attach_args *ma = aux; 116 struct mii_data *mii = ma->mii_data; 117 int oui = MII_OUI(ma->mii_id1, ma->mii_id2); 118 int model = MII_MODEL(ma->mii_id2); 119 int rev = MII_REV(ma->mii_id2); 120 #ifdef MIIVERBOSE 121 int i; 122 #endif 123 124 #ifdef MIIVERBOSE 125 for (i = 0; mii_knowndevs[i].descr != NULL; i++) 126 if (mii_knowndevs[i].oui == oui && 127 mii_knowndevs[i].model == model) 128 break; 129 if (mii_knowndevs[i].descr != NULL) 130 aprint_normal(": %s (OUI 0x%06x, model 0x%04x), rev. %d\n", 131 mii_knowndevs[i].descr, 132 oui, model, rev); 133 else 134 #endif 135 aprint_normal(": OUI 0x%06x, model 0x%04x, rev. %d\n", 136 oui, model, rev); 137 138 sc->mii_dev = self; 139 sc->mii_inst = mii->mii_instance; 140 sc->mii_phy = ma->mii_phyno; 141 sc->mii_funcs = &ukphy_funcs; 142 sc->mii_pdata = mii; 143 sc->mii_flags = ma->mii_flags; 144 sc->mii_anegticks = MII_ANEGTICKS; 145 146 /* 147 * Don't do loopback on unknown PHYs. It might confuse some of them. 148 */ 149 sc->mii_flags |= MIIF_NOLOOP; 150 151 PHY_RESET(sc); 152 153 sc->mii_capabilities = 154 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 155 if (sc->mii_capabilities & BMSR_EXTSTAT) 156 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 157 aprint_normal_dev(self, ""); 158 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 159 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 160 aprint_error("no media present"); 161 else 162 mii_phy_add_media(sc); 163 aprint_normal("\n"); 164 } 165 166 static int 167 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 168 { 169 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 170 int reg; 171 172 switch (cmd) { 173 case MII_POLLSTAT: 174 /* 175 * If we're not polling our PHY instance, just return. 176 */ 177 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 178 return (0); 179 break; 180 181 case MII_MEDIACHG: 182 /* 183 * If the media indicates a different PHY instance, 184 * isolate ourselves. 185 */ 186 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 187 reg = PHY_READ(sc, MII_BMCR); 188 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 189 return (0); 190 } 191 192 /* 193 * If the interface is not up, don't do anything. 194 */ 195 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 196 break; 197 198 mii_phy_setmedia(sc); 199 break; 200 201 case MII_TICK: 202 /* 203 * If we're not currently selected, just return. 204 */ 205 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 206 return (0); 207 208 /* 209 * Only used for autonegotiation. 210 */ 211 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 212 return (0); 213 214 if (mii_phy_tick(sc) == EJUSTRETURN) 215 return (0); 216 break; 217 218 case MII_DOWN: 219 mii_phy_down(sc); 220 return (0); 221 } 222 223 /* Update the media status. */ 224 mii_phy_status(sc); 225 226 /* Callback if something changed. */ 227 mii_phy_update(sc, cmd); 228 return (0); 229 } 230
Indexes created Wed Oct 22 13:09:56 GMT 2025