1 /* $OpenBSD: iophy.c,v 1.6 2000/08/26 20:04:17 nate Exp $ */ 2 /* $NetBSD: iophy.c,v 1.8 2000/02/02 23:34:56 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10 * NASA Ames Research Center. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by Manuel Bouyer. 55 * 4. The name of the author may not be used to endorse or promote products 56 * derived from this software without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 /* 71 * Intel 82553 PHY driver 72 */ 73 74 #include <sys/param.h> 75 #include <sys/systm.h> 76 #include <sys/kernel.h> 77 #include <sys/device.h> 78 #include <sys/malloc.h> 79 #include <sys/socket.h> 80 81 #include <net/if.h> 82 #include <net/if_media.h> 83 84 #include <dev/mii/mii.h> 85 #include <dev/mii/miivar.h> 86 #include <dev/mii/miidevs.h> 87 88 #include <dev/mii/iophyreg.h> 89 90 int iophymatch __P((struct device *, void *, void *)); 91 void iophyattach __P((struct device *, struct device *, void *)); 92 93 struct cfattach iophy_ca = { 94 sizeof(struct mii_softc), iophymatch, iophyattach, mii_phy_detach, 95 mii_phy_activate 96 }; 97 98 struct cfdriver iophy_cd = { 99 NULL, "iophy", DV_DULL 100 }; 101 102 int iophy_service __P((struct mii_softc *, struct mii_data *, int)); 103 void iophy_status __P((struct mii_softc *)); 104 105 int 106 iophymatch(parent, match, aux) 107 struct device *parent; 108 void *match; 109 void *aux; 110 { 111 struct mii_attach_args *ma = aux; 112 113 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxINTEL && 114 MII_MODEL(ma->mii_id2) == MII_MODEL_xxINTEL_I82553) 115 return (10); 116 117 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL && 118 MII_MODEL(ma->mii_id2) == MII_MODEL_INTEL_I82553) 119 return (10); 120 121 return (0); 122 } 123 124 void 125 iophyattach(parent, self, aux) 126 struct device *parent, *self; 127 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; 132 133 printf(": %s, rev. %d\n", MII_STR_INTEL_I82553, 134 MII_REV(ma->mii_id2)); 135 136 sc->mii_inst = mii->mii_instance; 137 sc->mii_phy = ma->mii_phyno; 138 sc->mii_service = iophy_service; 139 sc->mii_status = iophy_status; 140 sc->mii_pdata = mii; 141 sc->mii_flags = mii->mii_flags; 142 143 mii_phy_reset(sc); 144 145 sc->mii_capabilities = 146 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 147 if (sc->mii_capabilities & BMSR_MEDIAMASK) 148 mii_phy_add_media(sc); 149 } 150 151 int 152 iophy_service(sc, mii, cmd) 153 struct mii_softc *sc; 154 struct mii_data *mii; 155 int cmd; 156 { 157 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 158 int reg; 159 160 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 161 return (ENXIO); 162 163 switch (cmd) { 164 case MII_POLLSTAT: 165 /* 166 * If we're not polling our PHY instance, just return. 167 */ 168 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 169 return (0); 170 break; 171 172 case MII_MEDIACHG: 173 /* 174 * If the media indicates a different PHY instance, 175 * isolate ourselves. 176 */ 177 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 178 reg = PHY_READ(sc, MII_BMCR); 179 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 180 return (0); 181 } 182 183 /* 184 * If the interface is not up, don't do anything. 185 */ 186 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 187 break; 188 189 mii_phy_setmedia(sc); 190 break; 191 192 case MII_TICK: 193 /* 194 * If we're not currently selected, just return. 195 */ 196 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 197 return (0); 198 199 if (mii_phy_tick(sc) == EJUSTRETURN) 200 return (0); 201 break; 202 203 case MII_DOWN: 204 mii_phy_down(sc); 205 return (0); 206 } 207 208 /* Update the media status. */ 209 mii_phy_status(sc); 210 211 /* Callback if something changed. */ 212 mii_phy_update(sc, cmd); 213 return (0); 214 } 215 216 void 217 iophy_status(sc) 218 struct mii_softc *sc; 219 { 220 struct mii_data *mii = sc->mii_pdata; 221 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 222 int bmsr, bmcr, ext0; 223 224 mii->mii_media_status = IFM_AVALID; 225 mii->mii_media_active = IFM_ETHER; 226 227 bmsr = PHY_READ(sc, MII_BMSR) | 228 PHY_READ(sc, MII_BMSR); 229 if (bmsr & BMSR_LINK) 230 mii->mii_media_status |= IFM_ACTIVE; 231 232 bmcr = PHY_READ(sc, MII_BMCR); 233 if (bmcr & BMCR_ISO) { 234 mii->mii_media_active |= IFM_NONE; 235 mii->mii_media_status = 0; 236 return; 237 } 238 239 if (bmcr & BMCR_LOOP) 240 mii->mii_media_active |= IFM_LOOP; 241 242 if (bmcr & BMCR_AUTOEN) { 243 if ((bmsr & BMSR_ACOMP) == 0) { 244 /* Erg, still trying, I guess... */ 245 mii->mii_media_active |= IFM_NONE; 246 return; 247 } 248 ext0 = PHY_READ(sc, MII_IOPHY_EXT0); 249 250 if (ext0 & EXT0_SPEED) { 251 if (bmsr & BMSR_100T4) { 252 mii->mii_media_active |= IFM_100_T4; 253 return; 254 } else { 255 mii->mii_media_active |= IFM_100_TX; 256 } 257 } else { 258 mii->mii_media_active |= IFM_10_T; 259 } 260 261 if (ext0 & EXT0_DUPLEX) 262 mii->mii_media_active |= IFM_FDX; 263 } else 264 mii->mii_media_active = ife->ifm_media; 265 } 266