1 /* $OpenBSD: tqphy.c,v 1.3 2000/08/26 20:04:18 nate Exp $ */ 2 /* $NetBSD: tqphy.c,v 1.9 2000/02/02 23:34:57 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 * TDK TSC78Q2120 PHY driver 72 * 73 * Documentation available at http://www.tsc.tdk.com/lan/78Q2120.pdf . 74 */ 75 76 #include <sys/param.h> 77 #include <sys/systm.h> 78 #include <sys/kernel.h> 79 #include <sys/device.h> 80 #include <sys/malloc.h> 81 #include <sys/socket.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/tqphyreg.h> 91 92 int tqphymatch __P((struct device *, void *, void *)); 93 void tqphyattach __P((struct device *, struct device *, void *)); 94 int tqphydetach __P((struct device *, int)); 95 96 struct cfattach tqphy_ca = { 97 sizeof(struct mii_softc), tqphymatch, tqphyattach, mii_phy_detach, 98 mii_phy_activate 99 }; 100 101 struct cfdriver tqphy_cd = { 102 NULL, "tqphy", DV_DULL 103 }; 104 105 int tqphy_service __P((struct mii_softc *, struct mii_data *, int)); 106 void tqphy_status __P((struct mii_softc *)); 107 108 int 109 tqphymatch(parent, match, aux) 110 struct device *parent; 111 void *match; 112 void *aux; 113 { 114 struct mii_attach_args *ma = aux; 115 116 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_TSC) 117 switch MII_MODEL(ma->mii_id2) { 118 case MII_MODEL_TSC_78Q2120: 119 /* case MII_MODEL_TSC_78Q2121: */ 120 return (10); 121 } 122 123 return (0); 124 } 125 126 void 127 tqphyattach(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; 134 135 printf(": %s, rev. %d\n", MII_STR_TSC_78Q2120, 136 MII_REV(ma->mii_id2)); 137 138 sc->mii_inst = mii->mii_instance; 139 sc->mii_phy = ma->mii_phyno; 140 sc->mii_service = tqphy_service; 141 sc->mii_status = tqphy_status; 142 sc->mii_pdata = mii; 143 sc->mii_flags = mii->mii_flags; 144 145 /* 146 * Apparently, we can't do loopback on this PHY. 147 */ 148 sc->mii_flags |= MIIF_NOLOOP; 149 150 mii_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 tqphy_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 tqphy_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, diag; 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 diag = PHY_READ(sc, MII_TQPHY_DIAG); 256 if (diag & DIAG_RATE) 257 mii->mii_media_active |= IFM_100_TX; 258 else 259 mii->mii_media_active |= IFM_10_T; 260 if (diag & DIAG_DPLX) 261 mii->mii_media_active |= IFM_FDX; 262 } else 263 mii->mii_media_active = ife->ifm_media; 264 } 265