ukphy.c revision 1.17
1 /* $NetBSD: ukphy.c,v 1.17 2001/11/13 07:41:37 lukem 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 <sys/cdefs.h> 74 __KERNEL_RCSID(0, "$NetBSD: ukphy.c,v 1.17 2001/11/13 07:41:37 lukem Exp $"); 75 76 #include "opt_mii.h" 77 78 #include <sys/param.h> 79 #include <sys/systm.h> 80 #include <sys/kernel.h> 81 #include <sys/device.h> 82 #include <sys/malloc.h> 83 #include <sys/socket.h> 84 #include <sys/errno.h> 85 86 #include <net/if.h> 87 #include <net/if_media.h> 88 89 #include <dev/mii/mii.h> 90 #include <dev/mii/miivar.h> 91 92 #ifdef MIIVERBOSE 93 struct mii_knowndev { 94 int oui; 95 int model; 96 const char *descr; 97 }; 98 #include <dev/mii/miidevs.h> 99 #include <dev/mii/miidevs_data.h> 100 #endif 101 102 int ukphymatch(struct device *, struct cfdata *, void *); 103 void ukphyattach(struct device *, struct device *, void *); 104 105 struct cfattach ukphy_ca = { 106 sizeof(struct mii_softc), ukphymatch, ukphyattach, mii_phy_detach, 107 mii_phy_activate 108 }; 109 110 int ukphy_service(struct mii_softc *, struct mii_data *, int); 111 112 const struct mii_phy_funcs ukphy_funcs = { 113 ukphy_service, ukphy_status, mii_phy_reset, 114 }; 115 116 int 117 ukphymatch(struct device *parent, struct cfdata *match, 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(struct device *parent, struct device *self, void *aux) 128 { 129 struct mii_softc *sc = (struct mii_softc *)self; 130 struct mii_attach_args *ma = aux; 131 struct mii_data *mii = ma->mii_data; 132 int oui = MII_OUI(ma->mii_id1, ma->mii_id2); 133 int model = MII_MODEL(ma->mii_id2); 134 int rev = MII_REV(ma->mii_id2); 135 #ifdef MIIVERBOSE 136 int i; 137 #endif 138 139 printf(": Generic IEEE 802.3u media interface\n"); 140 #ifdef MIIVERBOSE 141 for (i = 0; mii_knowndevs[i].descr != NULL; i++) 142 if (mii_knowndevs[i].oui == oui && 143 mii_knowndevs[i].model == model) 144 break; 145 if (mii_knowndevs[i].descr != NULL) 146 printf("%s: %s (OUI 0x%06x, model 0x%04x), rev. %d\n", 147 sc->mii_dev.dv_xname, mii_knowndevs[i].descr, 148 oui, model, rev); 149 else 150 #endif 151 printf("%s: OUI 0x%06x, model 0x%04x, rev. %d\n", 152 sc->mii_dev.dv_xname, oui, model, rev); 153 154 sc->mii_inst = mii->mii_instance; 155 sc->mii_phy = ma->mii_phyno; 156 sc->mii_funcs = &ukphy_funcs; 157 sc->mii_pdata = mii; 158 sc->mii_flags = mii->mii_flags; 159 sc->mii_anegticks = 5; 160 161 /* 162 * Don't do loopback on unknown PHYs. It might confuse some of them. 163 */ 164 sc->mii_flags |= MIIF_NOLOOP; 165 166 PHY_RESET(sc); 167 168 sc->mii_capabilities = 169 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 170 if (sc->mii_capabilities & BMSR_EXTSTAT) 171 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 172 printf("%s: ", sc->mii_dev.dv_xname); 173 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 174 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 175 printf("no media present"); 176 else 177 mii_phy_add_media(sc); 178 printf("\n"); 179 } 180 181 int 182 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 183 { 184 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 185 int reg; 186 187 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 188 return (ENXIO); 189 190 switch (cmd) { 191 case MII_POLLSTAT: 192 /* 193 * If we're not polling our PHY instance, just return. 194 */ 195 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 196 return (0); 197 break; 198 199 case MII_MEDIACHG: 200 /* 201 * If the media indicates a different PHY instance, 202 * isolate ourselves. 203 */ 204 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 205 reg = PHY_READ(sc, MII_BMCR); 206 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 207 return (0); 208 } 209 210 /* 211 * If the interface is not up, don't do anything. 212 */ 213 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 214 break; 215 216 mii_phy_setmedia(sc); 217 break; 218 219 case MII_TICK: 220 /* 221 * If we're not currently selected, just return. 222 */ 223 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 224 return (0); 225 226 /* 227 * Only used for autonegotiation. 228 */ 229 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 230 return (0); 231 232 if (mii_phy_tick(sc) == EJUSTRETURN) 233 return (0); 234 break; 235 236 case MII_DOWN: 237 mii_phy_down(sc); 238 return (0); 239 } 240 241 /* Update the media status. */ 242 mii_phy_status(sc); 243 244 /* Callback if something changed. */ 245 mii_phy_update(sc, cmd); 246 return (0); 247 } 248
Indexes created Mon Sep 29 21:09:56 GMT 2025