1 /* $NetBSD: tqphy.c,v 1.11 2000/07/04 03:29:00 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Manuel Bouyer. 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 /* 70 * TDK TSC78Q2120 PHY driver 71 * 72 * Documentation available at http://www.tsc.tdk.com/lan/78Q2120.pdf . 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 82 #include <net/if.h> 83 #include <net/if_media.h> 84 85 #include <dev/mii/mii.h> 86 #include <dev/mii/miivar.h> 87 #include <dev/mii/miidevs.h> 88 89 #include <dev/mii/tqphyreg.h> 90 91 int tqphymatch __P((struct device *, struct cfdata *, void *)); 92 void tqphyattach __P((struct device *, struct device *, void *)); 93 94 struct cfattach tqphy_ca = { 95 sizeof(struct mii_softc), tqphymatch, tqphyattach, mii_phy_detach, 96 mii_phy_activate 97 }; 98 99 int tqphy_service __P((struct mii_softc *, struct mii_data *, int)); 100 void tqphy_status __P((struct mii_softc *)); 101 102 const struct mii_phy_funcs tqphy_funcs = { 103 tqphy_service, tqphy_status, mii_phy_reset, 104 }; 105 106 int 107 tqphymatch(parent, match, aux) 108 struct device *parent; 109 struct cfdata *match; 110 void *aux; 111 { 112 struct mii_attach_args *ma = aux; 113 114 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_TSC) 115 switch MII_MODEL(ma->mii_id2) { 116 case MII_MODEL_TSC_78Q2120: 117 /* case MII_MODEL_TSC_78Q2121: */ 118 return (10); 119 } 120 121 return (0); 122 } 123 124 void 125 tqphyattach(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_TSC_78Q2120, 134 MII_REV(ma->mii_id2)); 135 136 sc->mii_inst = mii->mii_instance; 137 sc->mii_phy = ma->mii_phyno; 138 sc->mii_funcs = &tqphy_funcs; 139 sc->mii_pdata = mii; 140 sc->mii_flags = mii->mii_flags; 141 142 /* 143 * Apparently, we can't do loopback on this PHY. 144 */ 145 sc->mii_flags |= MIIF_NOLOOP; 146 147 PHY_RESET(sc); 148 149 sc->mii_capabilities = 150 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 151 printf("%s: ", sc->mii_dev.dv_xname); 152 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 153 printf("no media present"); 154 else 155 mii_phy_add_media(sc); 156 printf("\n"); 157 } 158 159 int 160 tqphy_service(sc, mii, cmd) 161 struct mii_softc *sc; 162 struct mii_data *mii; 163 int cmd; 164 { 165 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 166 int reg; 167 168 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 169 return (ENXIO); 170 171 switch (cmd) { 172 case MII_POLLSTAT: 173 /* 174 * If we're not polling our PHY instance, just return. 175 */ 176 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 177 return (0); 178 break; 179 180 case MII_MEDIACHG: 181 /* 182 * If the media indicates a different PHY instance, 183 * isolate ourselves. 184 */ 185 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 186 reg = PHY_READ(sc, MII_BMCR); 187 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 188 return (0); 189 } 190 191 /* 192 * If the interface is not up, don't do anything. 193 */ 194 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 195 break; 196 197 mii_phy_setmedia(sc); 198 break; 199 200 case MII_TICK: 201 /* 202 * If we're not currently selected, just return. 203 */ 204 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 205 return (0); 206 207 if (mii_phy_tick(sc) == EJUSTRETURN) 208 return (0); 209 break; 210 211 case MII_DOWN: 212 mii_phy_down(sc); 213 return (0); 214 } 215 216 /* Update the media status. */ 217 mii_phy_status(sc); 218 219 /* Callback if something changed. */ 220 mii_phy_update(sc, cmd); 221 return (0); 222 } 223 224 void 225 tqphy_status(sc) 226 struct mii_softc *sc; 227 { 228 struct mii_data *mii = sc->mii_pdata; 229 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 230 int bmsr, bmcr, diag; 231 232 mii->mii_media_status = IFM_AVALID; 233 mii->mii_media_active = IFM_ETHER; 234 235 bmsr = PHY_READ(sc, MII_BMSR) | 236 PHY_READ(sc, MII_BMSR); 237 if (bmsr & BMSR_LINK) 238 mii->mii_media_status |= IFM_ACTIVE; 239 240 bmcr = PHY_READ(sc, MII_BMCR); 241 if (bmcr & BMCR_ISO) { 242 mii->mii_media_active |= IFM_NONE; 243 mii->mii_media_status = 0; 244 return; 245 } 246 247 if (bmcr & BMCR_LOOP) 248 mii->mii_media_active |= IFM_LOOP; 249 250 if (bmcr & BMCR_AUTOEN) { 251 if ((bmsr & BMSR_ACOMP) == 0) { 252 /* Erg, still trying, I guess... */ 253 mii->mii_media_active |= IFM_NONE; 254 return; 255 } 256 diag = PHY_READ(sc, MII_TQPHY_DIAG); 257 if (diag & DIAG_RATE) 258 mii->mii_media_active |= IFM_100_TX; 259 else 260 mii->mii_media_active |= IFM_10_T; 261 if (diag & DIAG_DPLX) 262 mii->mii_media_active |= IFM_FDX; 263 } else 264 mii->mii_media_active = ife->ifm_media; 265 } 266