1 /* $OpenBSD: inphy.c,v 1.18 2010/07/23 07:47:13 jsg Exp $ */ 2 /* $NetBSD: inphy.c,v 1.18 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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 49 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 51 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 52 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 53 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 54 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 55 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 56 */ 57 58 /* 59 * driver for Intel's i82555 ethernet 10/100 PHY 60 * Data Sheet available from www.intel.com 61 */ 62 63 #include <sys/param.h> 64 #include <sys/systm.h> 65 #include <sys/kernel.h> 66 #include <sys/device.h> 67 #include <sys/socket.h> 68 #include <sys/errno.h> 69 70 #include <net/if.h> 71 #include <net/if_media.h> 72 73 #include <dev/mii/mii.h> 74 #include <dev/mii/miivar.h> 75 #include <dev/mii/miidevs.h> 76 77 #include <dev/mii/inphyreg.h> 78 79 int inphymatch(struct device *, void *, void *); 80 void inphyattach(struct device *, struct device *, void *); 81 82 struct cfattach inphy_ca = { 83 sizeof(struct mii_softc), inphymatch, inphyattach, mii_phy_detach, 84 mii_phy_activate 85 }; 86 87 struct cfdriver inphy_cd = { 88 NULL, "inphy", DV_DULL 89 }; 90 91 int inphy_service(struct mii_softc *, struct mii_data *, int); 92 void inphy_status(struct mii_softc *); 93 94 const struct mii_phy_funcs inphy_funcs = { 95 inphy_service, inphy_status, mii_phy_reset, 96 }; 97 98 static const struct mii_phydesc inphys[] = { 99 { MII_OUI_INTEL, MII_MODEL_INTEL_I82555, 100 MII_STR_INTEL_I82555 }, 101 { MII_OUI_INTEL, MII_MODEL_INTEL_I82562EM, 102 MII_STR_INTEL_I82562EM }, 103 { MII_OUI_INTEL, MII_MODEL_INTEL_I82562ET, 104 MII_STR_INTEL_I82562ET }, 105 { MII_OUI_INTEL, MII_MODEL_INTEL_I82562G, 106 MII_STR_INTEL_I82562G }, 107 108 { 0, 0, 109 NULL }, 110 }; 111 112 int 113 inphymatch(parent, match, aux) 114 struct device *parent; 115 void *match; 116 void *aux; 117 { 118 struct mii_attach_args *ma = aux; 119 120 if (mii_phy_match(ma, inphys) != NULL) 121 return (10); 122 123 return (0); 124 } 125 126 void 127 inphyattach(parent, self, aux) 128 struct device *parent, *self; 129 void *aux; 130 { 131 struct mii_softc *sc = (struct mii_softc *)self; 132 struct mii_attach_args *ma = aux; 133 struct mii_data *mii = ma->mii_data; 134 const struct mii_phydesc *mpd; 135 136 mpd = mii_phy_match(ma, inphys); 137 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 138 139 sc->mii_inst = mii->mii_instance; 140 sc->mii_phy = ma->mii_phyno; 141 sc->mii_funcs = &inphy_funcs; 142 sc->mii_pdata = mii; 143 sc->mii_flags = ma->mii_flags; 144 145 PHY_RESET(sc); 146 147 sc->mii_capabilities = 148 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 149 if (sc->mii_capabilities & BMSR_MEDIAMASK) 150 mii_phy_add_media(sc); 151 } 152 153 int 154 inphy_service(sc, mii, cmd) 155 struct mii_softc *sc; 156 struct mii_data *mii; 157 int cmd; 158 { 159 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 160 int reg; 161 162 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 163 return (ENXIO); 164 165 switch (cmd) { 166 case MII_POLLSTAT: 167 /* 168 * If we're not polling our PHY instance, just return. 169 */ 170 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 171 return (0); 172 break; 173 174 case MII_MEDIACHG: 175 /* 176 * If the media indicates a different PHY instance, 177 * isolate ourselves. 178 */ 179 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 180 reg = PHY_READ(sc, MII_BMCR); 181 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 182 return (0); 183 } 184 185 /* 186 * If the interface is not up, don't do anything. 187 */ 188 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 189 break; 190 191 mii_phy_setmedia(sc); 192 break; 193 194 case MII_TICK: 195 /* 196 * If we're not currently selected, just return. 197 */ 198 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 199 return (0); 200 201 if (mii_phy_tick(sc) == EJUSTRETURN) 202 return (0); 203 break; 204 205 case MII_DOWN: 206 mii_phy_down(sc); 207 return (0); 208 } 209 210 /* Update the media status. */ 211 mii_phy_status(sc); 212 213 /* Callback if something changed. */ 214 mii_phy_update(sc, cmd); 215 return (0); 216 } 217 218 void 219 inphy_status(sc) 220 struct mii_softc *sc; 221 { 222 struct mii_data *mii = sc->mii_pdata; 223 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 224 int bmsr, bmcr, scr; 225 226 mii->mii_media_status = IFM_AVALID; 227 mii->mii_media_active = IFM_ETHER; 228 229 bmsr = PHY_READ(sc, MII_BMSR) | 230 PHY_READ(sc, MII_BMSR); 231 if (bmsr & BMSR_LINK) 232 mii->mii_media_status |= IFM_ACTIVE; 233 234 bmcr = PHY_READ(sc, MII_BMCR); 235 if (bmcr & BMCR_ISO) { 236 mii->mii_media_active |= IFM_NONE; 237 mii->mii_media_status = 0; 238 return; 239 } 240 241 if (bmcr & BMCR_LOOP) 242 mii->mii_media_active |= IFM_LOOP; 243 244 if (bmcr & BMCR_AUTOEN) { 245 if ((bmsr & BMSR_ACOMP) == 0) { 246 /* Erg, still trying, I guess... */ 247 mii->mii_media_active |= IFM_NONE; 248 return; 249 } 250 251 scr = PHY_READ(sc, MII_INPHY_SCR); 252 if (scr & SCR_S100) 253 mii->mii_media_active |= IFM_100_TX; 254 else if ((bmsr & BMSR_100T4) && (scr & SCR_T4)) 255 mii->mii_media_active |= IFM_100_T4; 256 else 257 mii->mii_media_active |= IFM_10_T; 258 259 if (scr & SCR_FDX) 260 mii->mii_media_active |= IFM_FDX; 261 else 262 mii->mii_media_active |= IFM_HDX; 263 } else 264 mii->mii_media_active = ife->ifm_media; 265 } 266