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 #include <sys/cdefs.h> 70 __FBSDID("$FreeBSD$"); 71 72 /* 73 * driver for generic unknown PHYs 74 */ 75 76 #include <sys/param.h> 77 #include <sys/systm.h> 78 #include <sys/kernel.h> 79 #include <sys/socket.h> 80 #include <sys/errno.h> 81 #include <sys/module.h> 82 #include <sys/bus.h> 83 84 #include <net/if.h> 85 #include <net/if_media.h> 86 87 #include <dev/mii/mii.h> 88 #include <dev/mii/miivar.h> 89 90 #include "miibus_if.h" 91 92 static int ukphy_probe(device_t); 93 static int ukphy_attach(device_t); 94 95 static device_method_t ukphy_methods[] = { 96 /* device interface */ 97 DEVMETHOD(device_probe, ukphy_probe), 98 DEVMETHOD(device_attach, ukphy_attach), 99 DEVMETHOD(device_detach, mii_phy_detach), 100 DEVMETHOD(device_shutdown, bus_generic_shutdown), 101 { 0, 0 } 102 }; 103 104 static devclass_t ukphy_devclass; 105 106 static driver_t ukphy_driver = { 107 "ukphy", 108 ukphy_methods, 109 sizeof(struct mii_softc) 110 }; 111 112 DRIVER_MODULE(ukphy, miibus, ukphy_driver, ukphy_devclass, 0, 0); 113 114 static int ukphy_service(struct mii_softc *, struct mii_data *, int); 115 116 static int 117 ukphy_probe(device_t dev) 118 { 119 120 /* 121 * We know something is here, so always match at a low priority. 122 */ 123 device_set_desc(dev, "Generic IEEE 802.3u media interface"); 124 return (BUS_PROBE_GENERIC); 125 } 126 127 static int 128 ukphy_attach(device_t dev) 129 { 130 struct mii_softc *sc; 131 struct mii_attach_args *ma; 132 struct mii_data *mii; 133 134 sc = device_get_softc(dev); 135 ma = device_get_ivars(dev); 136 sc->mii_dev = device_get_parent(dev); 137 mii = device_get_softc(sc->mii_dev); 138 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 139 140 if (bootverbose) 141 device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n", 142 MII_OUI(ma->mii_id1, ma->mii_id2), 143 MII_MODEL(ma->mii_id2), MII_REV(ma->mii_id2)); 144 145 sc->mii_inst = mii->mii_instance; 146 sc->mii_phy = ma->mii_phyno; 147 sc->mii_service = ukphy_service; 148 sc->mii_pdata = mii; 149 150 mii->mii_instance++; 151 152 sc->mii_flags |= MIIF_NOISOLATE; 153 154 mii_phy_reset(sc); 155 156 sc->mii_capabilities = 157 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 158 if (sc->mii_capabilities & BMSR_EXTSTAT) 159 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 160 device_printf(dev, " "); 161 mii_phy_add_media(sc); 162 printf("\n"); 163 164 MIIBUS_MEDIAINIT(sc->mii_dev); 165 mii_phy_setmedia(sc); 166 167 return(0); 168 } 169 170 static int 171 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 172 { 173 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 174 int reg; 175 176 switch (cmd) { 177 case MII_POLLSTAT: 178 /* 179 * If we're not polling our PHY instance, just return. 180 */ 181 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 182 return (0); 183 break; 184 185 case MII_MEDIACHG: 186 /* 187 * If the media indicates a different PHY instance, 188 * isolate ourselves. 189 */ 190 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 191 reg = PHY_READ(sc, MII_BMCR); 192 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 193 return (0); 194 } 195 196 /* 197 * If the interface is not up, don't do anything. 198 */ 199 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 200 break; 201 202 mii_phy_setmedia(sc); 203 break; 204 205 case MII_TICK: 206 /* 207 * If we're not currently selected, just return. 208 */ 209 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 210 return (0); 211 if (mii_phy_tick(sc) == EJUSTRETURN) 212 return (0); 213 break; 214 } 215 216 /* Update the media status. */ 217 ukphy_status(sc); 218 219 /* Callback if something changed. */ 220 mii_phy_update(sc, cmd); 221 return (0); 222 } 223