ukphy.c revision 1.35
1 /* $NetBSD: ukphy.c,v 1.35 2008/05/04 17:06:10 xtraeme 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 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by Manuel Bouyer. 47 * 4. The name of the author may not be used to endorse or promote products 48 * derived from this software without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 51 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 53 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 54 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 55 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 59 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 */ 61 62 /* 63 * driver for generic unknown PHYs 64 */ 65 66 #include <sys/cdefs.h> 67 __KERNEL_RCSID(0, "$NetBSD: ukphy.c,v 1.35 2008/05/04 17:06:10 xtraeme Exp $"); 68 69 #include "opt_mii.h" 70 71 #include <sys/param.h> 72 #include <sys/systm.h> 73 #include <sys/kernel.h> 74 #include <sys/device.h> 75 #include <sys/socket.h> 76 #include <sys/errno.h> 77 78 #include <net/if.h> 79 #include <net/if_media.h> 80 81 #include <dev/mii/mii.h> 82 #include <dev/mii/miivar.h> 83 84 #ifdef MIIVERBOSE 85 struct mii_knowndev { 86 int oui; 87 int model; 88 const char *descr; 89 }; 90 #include <dev/mii/miidevs.h> 91 #include <dev/mii/miidevs_data.h> 92 #endif 93 94 static int ukphymatch(device_t, cfdata_t, void *); 95 static void ukphyattach(device_t, device_t, void *); 96 97 CFATTACH_DECL_NEW(ukphy, sizeof(struct mii_softc), 98 ukphymatch, ukphyattach, mii_phy_detach, mii_phy_activate); 99 100 static int ukphy_service(struct mii_softc *, struct mii_data *, int); 101 102 static const struct mii_phy_funcs ukphy_funcs = { 103 ukphy_service, ukphy_status, mii_phy_reset, 104 }; 105 106 static int 107 ukphymatch(device_t parent, cfdata_t match, void *aux) 108 { 109 110 /* 111 * We know something is here, so always match at a low priority. 112 */ 113 return (1); 114 } 115 116 static void 117 ukphyattach(device_t parent, device_t self, void *aux) 118 { 119 struct mii_softc *sc = device_private(self); 120 struct mii_attach_args *ma = aux; 121 struct mii_data *mii = ma->mii_data; 122 int oui = MII_OUI(ma->mii_id1, ma->mii_id2); 123 int model = MII_MODEL(ma->mii_id2); 124 int rev = MII_REV(ma->mii_id2); 125 #ifdef MIIVERBOSE 126 int i; 127 #endif 128 129 aprint_naive(": Media interface\n"); 130 aprint_normal(": Generic IEEE 802.3u media interface\n"); 131 #ifdef MIIVERBOSE 132 for (i = 0; mii_knowndevs[i].descr != NULL; i++) 133 if (mii_knowndevs[i].oui == oui && 134 mii_knowndevs[i].model == model) 135 break; 136 if (mii_knowndevs[i].descr != NULL) 137 aprint_normal_dev(self, "%s (OUI 0x%06x, model 0x%04x), rev. %d\n", 138 mii_knowndevs[i].descr, 139 oui, model, rev); 140 else 141 #endif 142 aprint_normal_dev(self, "OUI 0x%06x, model 0x%04x, rev. %d\n", 143 oui, model, rev); 144 145 sc->mii_dev = self; 146 sc->mii_inst = mii->mii_instance; 147 sc->mii_phy = ma->mii_phyno; 148 sc->mii_funcs = &ukphy_funcs; 149 sc->mii_pdata = mii; 150 sc->mii_flags = ma->mii_flags; 151 sc->mii_anegticks = MII_ANEGTICKS; 152 153 /* 154 * Don't do loopback on unknown PHYs. It might confuse some of them. 155 */ 156 sc->mii_flags |= MIIF_NOLOOP; 157 158 PHY_RESET(sc); 159 160 sc->mii_capabilities = 161 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 162 if (sc->mii_capabilities & BMSR_EXTSTAT) 163 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 164 aprint_normal_dev(self, ""); 165 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 166 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 167 aprint_error("no media present"); 168 else 169 mii_phy_add_media(sc); 170 aprint_normal("\n"); 171 172 if (!pmf_device_register(self, NULL, mii_phy_resume)) 173 aprint_error_dev(self, "couldn't establish power handler\n"); 174 } 175 176 static int 177 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 178 { 179 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 180 int reg; 181 182 switch (cmd) { 183 case MII_POLLSTAT: 184 /* 185 * If we're not polling our PHY instance, just return. 186 */ 187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 188 return (0); 189 break; 190 191 case MII_MEDIACHG: 192 /* 193 * If the media indicates a different PHY instance, 194 * isolate ourselves. 195 */ 196 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 197 reg = PHY_READ(sc, MII_BMCR); 198 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 199 return (0); 200 } 201 202 /* 203 * If the interface is not up, don't do anything. 204 */ 205 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 206 break; 207 208 mii_phy_setmedia(sc); 209 break; 210 211 case MII_TICK: 212 /* 213 * If we're not currently selected, just return. 214 */ 215 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 216 return (0); 217 218 /* 219 * Only used for autonegotiation. 220 */ 221 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 222 return (0); 223 224 if (mii_phy_tick(sc) == EJUSTRETURN) 225 return (0); 226 break; 227 228 case MII_DOWN: 229 mii_phy_down(sc); 230 return (0); 231 } 232 233 /* Update the media status. */ 234 mii_phy_status(sc); 235 236 /* Callback if something changed. */ 237 mii_phy_update(sc, cmd); 238 return (0); 239 } 240
Indexes created Mon Sep 29 18:09:42 GMT 2025