1 /* $NetBSD: ukphy.c,v 1.2 1999/04/23 04:24:32 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999 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/param.h> 74 #include <sys/systm.h> 75 #include <sys/kernel.h> 76 #include <sys/socket.h> 77 #include <sys/errno.h> 78 #include <sys/module.h> 79 #include <sys/bus.h> 80 81 #include <net/if.h> 82 #include <net/if_media.h> 83 84 85 #include <dev/mii/mii.h> 86 #include <dev/mii/miivar.h> 87 88 #include "miibus_if.h" 89 90 #if !defined(lint) 91 static const char rcsid[] = 92 "$FreeBSD$"; 93 #endif 94 95 static int ukphy_probe (device_t); 96 static int ukphy_attach (device_t); 97 98 static device_method_t ukphy_methods[] = { 99 /* device interface */ 100 DEVMETHOD(device_probe, ukphy_probe), 101 DEVMETHOD(device_attach, ukphy_attach), 102 DEVMETHOD(device_detach, mii_phy_detach), 103 DEVMETHOD(device_shutdown, bus_generic_shutdown), 104 { 0, 0 } 105 }; 106 107 static devclass_t ukphy_devclass; 108 109 static driver_t ukphy_driver = { 110 "ukphy", 111 ukphy_methods, 112 sizeof(struct mii_softc) 113 }; 114 115 DRIVER_MODULE(ukphy, miibus, ukphy_driver, ukphy_devclass, 0, 0); 116 117 static int ukphy_service(struct mii_softc *, struct mii_data *, int); 118 119 static int 120 ukphy_probe(dev) 121 device_t dev; 122 { 123 124 /* 125 * We know something is here, so always match at a low priority. 126 */ 127 device_set_desc(dev, "Generic IEEE 802.3u media interface"); 128 return (-100); 129 } 130 131 static int 132 ukphy_attach(dev) 133 device_t dev; 134 { 135 struct mii_softc *sc; 136 struct mii_attach_args *ma; 137 struct mii_data *mii; 138 139 sc = device_get_softc(dev); 140 ma = device_get_ivars(dev); 141 sc->mii_dev = device_get_parent(dev); 142 mii = device_get_softc(sc->mii_dev); 143 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 144 145 if (bootverbose) 146 device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n", 147 MII_OUI(ma->mii_id1, ma->mii_id2), 148 MII_MODEL(ma->mii_id2), MII_REV(ma->mii_id2)); 149 150 sc->mii_inst = mii->mii_instance; 151 sc->mii_phy = ma->mii_phyno; 152 sc->mii_service = ukphy_service; 153 sc->mii_pdata = mii; 154 155 mii->mii_instance++; 156 157 sc->mii_flags |= MIIF_NOISOLATE; 158 159 mii_phy_reset(sc); 160 161 sc->mii_capabilities = 162 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 163 if (sc->mii_capabilities & BMSR_EXTSTAT) 164 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 165 device_printf(dev, " "); 166 mii_phy_add_media(sc); 167 printf("\n"); 168 169 MIIBUS_MEDIAINIT(sc->mii_dev); 170 171 return(0); 172 } 173 174 static int 175 ukphy_service(sc, mii, cmd) 176 struct mii_softc *sc; 177 struct mii_data *mii; 178 int cmd; 179 { 180 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 181 int reg; 182 183 switch (cmd) { 184 case MII_POLLSTAT: 185 /* 186 * If we're not polling our PHY instance, just return. 187 */ 188 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 189 return (0); 190 break; 191 192 case MII_MEDIACHG: 193 /* 194 * If the media indicates a different PHY instance, 195 * isolate ourselves. 196 */ 197 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 198 reg = PHY_READ(sc, MII_BMCR); 199 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 200 return (0); 201 } 202 203 /* 204 * If the interface is not up, don't do anything. 205 */ 206 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 207 break; 208 209 mii_phy_setmedia(sc); 210 break; 211 212 case MII_TICK: 213 /* 214 * If we're not currently selected, just return. 215 */ 216 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 217 return (0); 218 if (mii_phy_tick(sc) == EJUSTRETURN) 219 return (0); 220 break; 221 } 222 223 /* Update the media status. */ 224 ukphy_status(sc); 225 226 /* Callback if something changed. */ 227 mii_phy_update(sc, cmd); 228 return (0); 229 } 230