1 /* $NetBSD: ukphy.c,v 1.13 2000/07/04 03:29:00 thorpej 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Manuel Bouyer. 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 /* 70 * driver for generic unknown PHYs 71 */ 72 73 #include "opt_mii.h" 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/kernel.h> 78 #include <sys/device.h> 79 #include <sys/malloc.h> 80 #include <sys/socket.h> 81 #include <sys/errno.h> 82 83 #include <net/if.h> 84 #include <net/if_media.h> 85 86 #include <dev/mii/mii.h> 87 #include <dev/mii/miivar.h> 88 89 #ifdef MIIVERBOSE 90 struct mii_knowndev { 91 int oui; 92 int model; 93 const char *descr; 94 }; 95 #include <dev/mii/miidevs.h> 96 #include <dev/mii/miidevs_data.h> 97 #endif 98 99 int ukphymatch __P((struct device *, struct cfdata *, void *)); 100 void ukphyattach __P((struct device *, struct device *, void *)); 101 102 struct cfattach ukphy_ca = { 103 sizeof(struct mii_softc), ukphymatch, ukphyattach, mii_phy_detach, 104 mii_phy_activate 105 }; 106 107 int ukphy_service __P((struct mii_softc *, struct mii_data *, int)); 108 109 const struct mii_phy_funcs ukphy_funcs = { 110 ukphy_service, ukphy_status, mii_phy_reset, 111 }; 112 113 int 114 ukphymatch(parent, match, aux) 115 struct device *parent; 116 struct cfdata *match; 117 void *aux; 118 { 119 120 /* 121 * We know something is here, so always match at a low priority. 122 */ 123 return (1); 124 } 125 126 void 127 ukphyattach(parent, self, aux) 128 struct device *parent, *self; 129 void *aux; 130 { 131 struct mii_softc *sc = (struct mii_softc *)self; 132 struct mii_attach_args *ma = aux; 133 struct mii_data *mii = ma->mii_data; 134 int oui = MII_OUI(ma->mii_id1, ma->mii_id2); 135 int model = MII_MODEL(ma->mii_id2); 136 int rev = MII_REV(ma->mii_id2); 137 #ifdef MIIVERBOSE 138 int i; 139 #endif 140 141 printf(": Generic IEEE 802.3u media interface\n"); 142 #ifdef MIIVERBOSE 143 for (i = 0; mii_knowndevs[i].descr != NULL; i++) 144 if (mii_knowndevs[i].oui == oui && 145 mii_knowndevs[i].model == model) 146 break; 147 if (mii_knowndevs[i].descr != NULL) 148 printf("%s: %s (OUI 0x%06x, model 0x%04x), rev. %d\n", 149 sc->mii_dev.dv_xname, mii_knowndevs[i].descr, 150 oui, model, rev); 151 else 152 #endif 153 printf("%s: OUI 0x%06x, model 0x%04x, rev. %d\n", 154 sc->mii_dev.dv_xname, oui, model, rev); 155 156 sc->mii_inst = mii->mii_instance; 157 sc->mii_phy = ma->mii_phyno; 158 sc->mii_funcs = &ukphy_funcs; 159 sc->mii_pdata = mii; 160 sc->mii_flags = mii->mii_flags; 161 162 /* 163 * Don't do loopback on unknown PHYs. It might confuse some of them. 164 */ 165 sc->mii_flags |= MIIF_NOLOOP; 166 167 PHY_RESET(sc); 168 169 sc->mii_capabilities = 170 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 171 printf("%s: ", sc->mii_dev.dv_xname); 172 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 173 printf("no media present"); 174 else 175 mii_phy_add_media(sc); 176 printf("\n"); 177 } 178 179 int 180 ukphy_service(sc, mii, cmd) 181 struct mii_softc *sc; 182 struct mii_data *mii; 183 int cmd; 184 { 185 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 186 int reg; 187 188 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 189 return (ENXIO); 190 191 switch (cmd) { 192 case MII_POLLSTAT: 193 /* 194 * If we're not polling our PHY instance, just return. 195 */ 196 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 197 return (0); 198 break; 199 200 case MII_MEDIACHG: 201 /* 202 * If the media indicates a different PHY instance, 203 * isolate ourselves. 204 */ 205 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 206 reg = PHY_READ(sc, MII_BMCR); 207 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 208 return (0); 209 } 210 211 /* 212 * If the interface is not up, don't do anything. 213 */ 214 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 215 break; 216 217 mii_phy_setmedia(sc); 218 break; 219 220 case MII_TICK: 221 /* 222 * If we're not currently selected, just return. 223 */ 224 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 225 return (0); 226 227 /* 228 * Only used for autonegotiation. 229 */ 230 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 231 return (0); 232 233 if (mii_phy_tick(sc) == EJUSTRETURN) 234 return (0); 235 break; 236 237 case MII_DOWN: 238 mii_phy_down(sc); 239 return (0); 240 } 241 242 /* Update the media status. */ 243 mii_phy_status(sc); 244 245 /* Callback if something changed. */ 246 mii_phy_update(sc, cmd); 247 return (0); 248 } 249