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 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 /* 44 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by Manuel Bouyer. 57 * 4. The name of the author may not be used to endorse or promote products 58 * derived from this software without specific prior written permission. 59 * 60 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 61 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 62 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 63 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 64 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 65 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 66 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 67 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 68 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 69 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 70 */ 71 72 /* 73 * driver for generic unknown PHYs 74 */ 75 76 #include <sys/cdefs.h> 77 __FBSDID("$FreeBSD$"); 78 79 #include <sys/param.h> 80 #include <sys/systm.h> 81 #include <sys/kernel.h> 82 #include <sys/socket.h> 83 #include <sys/errno.h> 84 #include <sys/module.h> 85 #include <sys/bus.h> 86 87 #include <net/if.h> 88 #include <net/if_media.h> 89 90 #include <dev/mii/mii.h> 91 #include <dev/mii/miivar.h> 92 93 #include "miibus_if.h" 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 mii_phy_setmedia(sc); 171 172 return(0); 173 } 174 175 static int 176 ukphy_service(sc, mii, cmd) 177 struct mii_softc *sc; 178 struct mii_data *mii; 179 int cmd; 180 { 181 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 182 int reg; 183 184 switch (cmd) { 185 case MII_POLLSTAT: 186 /* 187 * If we're not polling our PHY instance, just return. 188 */ 189 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 190 return (0); 191 break; 192 193 case MII_MEDIACHG: 194 /* 195 * If the media indicates a different PHY instance, 196 * isolate ourselves. 197 */ 198 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 199 reg = PHY_READ(sc, MII_BMCR); 200 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 201 return (0); 202 } 203 204 /* 205 * If the interface is not up, don't do anything. 206 */ 207 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 208 break; 209 210 mii_phy_setmedia(sc); 211 break; 212 213 case MII_TICK: 214 /* 215 * If we're not currently selected, just return. 216 */ 217 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 218 return (0); 219 if (mii_phy_tick(sc) == EJUSTRETURN) 220 return (0); 221 break; 222 } 223 224 /* Update the media status. */ 225 ukphy_status(sc); 226 227 /* Callback if something changed. */ 228 mii_phy_update(sc, cmd); 229 return (0); 230 } 231