1 /* $OpenBSD: inphy.c,v 1.17 2008/09/08 07:38:33 brad 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 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by Manuel Bouyer. 48 * 4. The name of the author may not be used to endorse or promote products 49 * derived from this software without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 52 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 53 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 54 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 55 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 56 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 60 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 61 */ 62 63 /* 64 * driver for Intel's i82555 ethernet 10/100 PHY 65 * Data Sheet available from www.intel.com 66 */ 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/kernel.h> 71 #include <sys/device.h> 72 #include <sys/socket.h> 73 #include <sys/errno.h> 74 75 #include <net/if.h> 76 #include <net/if_media.h> 77 78 #include <dev/mii/mii.h> 79 #include <dev/mii/miivar.h> 80 #include <dev/mii/miidevs.h> 81 82 #include <dev/mii/inphyreg.h> 83 84 int inphymatch(struct device *, void *, void *); 85 void inphyattach(struct device *, struct device *, void *); 86 87 struct cfattach inphy_ca = { 88 sizeof(struct mii_softc), inphymatch, inphyattach, mii_phy_detach, 89 mii_phy_activate 90 }; 91 92 struct cfdriver inphy_cd = { 93 NULL, "inphy", DV_DULL 94 }; 95 96 int inphy_service(struct mii_softc *, struct mii_data *, int); 97 void inphy_status(struct mii_softc *); 98 99 const struct mii_phy_funcs inphy_funcs = { 100 inphy_service, inphy_status, mii_phy_reset, 101 }; 102 103 static const struct mii_phydesc inphys[] = { 104 { MII_OUI_INTEL, MII_MODEL_INTEL_I82555, 105 MII_STR_INTEL_I82555 }, 106 { MII_OUI_INTEL, MII_MODEL_INTEL_I82562EM, 107 MII_STR_INTEL_I82562EM }, 108 { MII_OUI_INTEL, MII_MODEL_INTEL_I82562ET, 109 MII_STR_INTEL_I82562ET }, 110 { MII_OUI_INTEL, MII_MODEL_INTEL_I82562G, 111 MII_STR_INTEL_I82562G }, 112 113 { 0, 0, 114 NULL }, 115 }; 116 117 int 118 inphymatch(parent, match, aux) 119 struct device *parent; 120 void *match; 121 void *aux; 122 { 123 struct mii_attach_args *ma = aux; 124 125 if (mii_phy_match(ma, inphys) != NULL) 126 return (10); 127 128 return (0); 129 } 130 131 void 132 inphyattach(parent, self, aux) 133 struct device *parent, *self; 134 void *aux; 135 { 136 struct mii_softc *sc = (struct mii_softc *)self; 137 struct mii_attach_args *ma = aux; 138 struct mii_data *mii = ma->mii_data; 139 const struct mii_phydesc *mpd; 140 141 mpd = mii_phy_match(ma, inphys); 142 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 143 144 sc->mii_inst = mii->mii_instance; 145 sc->mii_phy = ma->mii_phyno; 146 sc->mii_funcs = &inphy_funcs; 147 sc->mii_pdata = mii; 148 sc->mii_flags = ma->mii_flags; 149 150 PHY_RESET(sc); 151 152 sc->mii_capabilities = 153 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 154 if (sc->mii_capabilities & BMSR_MEDIAMASK) 155 mii_phy_add_media(sc); 156 } 157 158 int 159 inphy_service(sc, mii, cmd) 160 struct mii_softc *sc; 161 struct mii_data *mii; 162 int cmd; 163 { 164 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 165 int reg; 166 167 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 168 return (ENXIO); 169 170 switch (cmd) { 171 case MII_POLLSTAT: 172 /* 173 * If we're not polling our PHY instance, just return. 174 */ 175 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 176 return (0); 177 break; 178 179 case MII_MEDIACHG: 180 /* 181 * If the media indicates a different PHY instance, 182 * isolate ourselves. 183 */ 184 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 185 reg = PHY_READ(sc, MII_BMCR); 186 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 187 return (0); 188 } 189 190 /* 191 * If the interface is not up, don't do anything. 192 */ 193 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 194 break; 195 196 mii_phy_setmedia(sc); 197 break; 198 199 case MII_TICK: 200 /* 201 * If we're not currently selected, just return. 202 */ 203 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 204 return (0); 205 206 if (mii_phy_tick(sc) == EJUSTRETURN) 207 return (0); 208 break; 209 210 case MII_DOWN: 211 mii_phy_down(sc); 212 return (0); 213 } 214 215 /* Update the media status. */ 216 mii_phy_status(sc); 217 218 /* Callback if something changed. */ 219 mii_phy_update(sc, cmd); 220 return (0); 221 } 222 223 void 224 inphy_status(sc) 225 struct mii_softc *sc; 226 { 227 struct mii_data *mii = sc->mii_pdata; 228 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 229 int bmsr, bmcr, scr; 230 231 mii->mii_media_status = IFM_AVALID; 232 mii->mii_media_active = IFM_ETHER; 233 234 bmsr = PHY_READ(sc, MII_BMSR) | 235 PHY_READ(sc, MII_BMSR); 236 if (bmsr & BMSR_LINK) 237 mii->mii_media_status |= IFM_ACTIVE; 238 239 bmcr = PHY_READ(sc, MII_BMCR); 240 if (bmcr & BMCR_ISO) { 241 mii->mii_media_active |= IFM_NONE; 242 mii->mii_media_status = 0; 243 return; 244 } 245 246 if (bmcr & BMCR_LOOP) 247 mii->mii_media_active |= IFM_LOOP; 248 249 if (bmcr & BMCR_AUTOEN) { 250 if ((bmsr & BMSR_ACOMP) == 0) { 251 /* Erg, still trying, I guess... */ 252 mii->mii_media_active |= IFM_NONE; 253 return; 254 } 255 256 scr = PHY_READ(sc, MII_INPHY_SCR); 257 if (scr & SCR_S100) 258 mii->mii_media_active |= IFM_100_TX; 259 else if ((bmsr & BMSR_100T4) && (scr & SCR_T4)) 260 mii->mii_media_active |= IFM_100_T4; 261 else 262 mii->mii_media_active |= IFM_10_T; 263 264 if (scr & SCR_FDX) 265 mii->mii_media_active |= IFM_FDX; 266 else 267 mii->mii_media_active |= IFM_HDX; 268 } else 269 mii->mii_media_active = ife->ifm_media; 270 } 271