1 /* $OpenBSD: inphy.c,v 1.7 2001/04/17 01:19:21 jason 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 * 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 * driver for Intel's i82555 ethernet 10/100 PHY 72 * Data Sheet available from www.intel.com 73 */ 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/kernel.h> 78 #include <sys/device.h> 79 #include <sys/malloc.h> 80 #include <sys/socket.h> 81 #include <sys/errno.h> 82 83 #include <net/if.h> 84 #include <net/if_media.h> 85 86 #include <dev/mii/mii.h> 87 #include <dev/mii/miivar.h> 88 #include <dev/mii/miidevs.h> 89 90 #include <dev/mii/inphyreg.h> 91 92 int inphymatch __P((struct device *, void *, void *)); 93 void inphyattach __P((struct device *, struct device *, void *)); 94 95 struct cfattach inphy_ca = { 96 sizeof(struct mii_softc), inphymatch, inphyattach, mii_phy_detach, 97 mii_phy_activate 98 }; 99 100 struct cfdriver inphy_cd = { 101 NULL, "inphy", DV_DULL 102 }; 103 104 int inphy_service __P((struct mii_softc *, struct mii_data *, int)); 105 void inphy_status __P((struct mii_softc *)); 106 107 int 108 inphymatch(parent, match, aux) 109 struct device *parent; 110 void *match; 111 void *aux; 112 { 113 struct mii_attach_args *ma = aux; 114 115 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL) { 116 switch (MII_MODEL(ma->mii_id2)) { 117 case MII_MODEL_INTEL_I82555: 118 case MII_MODEL_INTEL_I82562EM: 119 case MII_MODEL_INTEL_I82562ET: 120 return (10); 121 } 122 } 123 124 return (0); 125 } 126 127 void 128 inphyattach(parent, self, aux) 129 struct device *parent, *self; 130 void *aux; 131 { 132 struct mii_softc *sc = (struct mii_softc *)self; 133 struct mii_attach_args *ma = aux; 134 struct mii_data *mii = ma->mii_data; 135 char *mstr; 136 137 switch (MII_MODEL(ma->mii_id2)) { 138 case MII_MODEL_INTEL_I82555: 139 mstr = MII_STR_INTEL_I82555; 140 break; 141 case MII_MODEL_INTEL_I82562EM: 142 mstr = MII_STR_INTEL_I82562EM; 143 break; 144 case MII_MODEL_INTEL_I82562ET: 145 mstr = MII_STR_INTEL_I82562ET; 146 break; 147 default: 148 mstr = "unknown inphy"; 149 break; 150 } 151 printf(": %s, rev. %d\n", mstr, MII_REV(ma->mii_id2)); 152 153 sc->mii_inst = mii->mii_instance; 154 sc->mii_phy = ma->mii_phyno; 155 sc->mii_service = inphy_service; 156 sc->mii_status = inphy_status; 157 sc->mii_pdata = mii; 158 sc->mii_flags = mii->mii_flags; 159 160 mii_phy_reset(sc); 161 162 sc->mii_capabilities = 163 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 164 if (sc->mii_capabilities & BMSR_MEDIAMASK) 165 mii_phy_add_media(sc); 166 } 167 168 int 169 inphy_service(sc, mii, cmd) 170 struct mii_softc *sc; 171 struct mii_data *mii; 172 int cmd; 173 { 174 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 175 int reg; 176 177 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 178 return (ENXIO); 179 180 switch (cmd) { 181 case MII_POLLSTAT: 182 /* 183 * If we're not polling our PHY instance, just return. 184 */ 185 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 186 return (0); 187 break; 188 189 case MII_MEDIACHG: 190 /* 191 * If the media indicates a different PHY instance, 192 * isolate ourselves. 193 */ 194 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 195 reg = PHY_READ(sc, MII_BMCR); 196 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 197 return (0); 198 } 199 200 /* 201 * If the interface is not up, don't do anything. 202 */ 203 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 204 break; 205 206 mii_phy_setmedia(sc); 207 break; 208 209 case MII_TICK: 210 /* 211 * If we're not currently selected, just return. 212 */ 213 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 214 return (0); 215 216 if (mii_phy_tick(sc) == EJUSTRETURN) 217 return (0); 218 break; 219 220 case MII_DOWN: 221 mii_phy_down(sc); 222 return (0); 223 } 224 225 /* Update the media status. */ 226 mii_phy_status(sc); 227 228 /* Callback if something changed. */ 229 mii_phy_update(sc, cmd); 230 return (0); 231 } 232 233 void 234 inphy_status(sc) 235 struct mii_softc *sc; 236 { 237 struct mii_data *mii = sc->mii_pdata; 238 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 239 int bmsr, bmcr, scr; 240 241 mii->mii_media_status = IFM_AVALID; 242 mii->mii_media_active = IFM_ETHER; 243 244 bmsr = PHY_READ(sc, MII_BMSR) | 245 PHY_READ(sc, MII_BMSR); 246 if (bmsr & BMSR_LINK) 247 mii->mii_media_status |= IFM_ACTIVE; 248 249 bmcr = PHY_READ(sc, MII_BMCR); 250 if (bmcr & BMCR_ISO) { 251 mii->mii_media_active |= IFM_NONE; 252 mii->mii_media_status = 0; 253 return; 254 } 255 256 if (bmcr & BMCR_LOOP) 257 mii->mii_media_active |= IFM_LOOP; 258 259 if (bmcr & BMCR_AUTOEN) { 260 if ((bmsr & BMSR_ACOMP) == 0) { 261 /* Erg, still trying, I guess... */ 262 mii->mii_media_active |= IFM_NONE; 263 return; 264 } 265 scr = PHY_READ(sc, MII_INPHY_SCR); 266 if ((bmsr & BMSR_100T4) && (scr & SCR_T4)) 267 mii->mii_media_active |= IFM_100_T4; 268 else if (scr & SCR_S100) 269 mii->mii_media_active |= IFM_100_TX; 270 else 271 mii->mii_media_active |= IFM_10_T; 272 if (scr & SCR_FDX) 273 mii->mii_media_active |= IFM_FDX; 274 } else 275 mii->mii_media_active = ife->ifm_media; 276 } 277