tqphy.c revision 1.18
1 /* $NetBSD: tqphy.c,v 1.18 2002/04/15 16:50:52 mycroft 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/cdefs.h> 76 __KERNEL_RCSID(0, "$NetBSD: tqphy.c,v 1.18 2002/04/15 16:50:52 mycroft Exp $"); 77 78 #include <sys/param.h> 79 #include <sys/systm.h> 80 #include <sys/kernel.h> 81 #include <sys/device.h> 82 #include <sys/malloc.h> 83 #include <sys/socket.h> 84 85 #include <net/if.h> 86 #include <net/if_media.h> 87 88 #include <dev/mii/mii.h> 89 #include <dev/mii/miivar.h> 90 #include <dev/mii/miidevs.h> 91 92 #include <dev/mii/tqphyreg.h> 93 94 int tqphymatch(struct device *, struct cfdata *, void *); 95 void tqphyattach(struct device *, struct device *, void *); 96 97 struct cfattach tqphy_ca = { 98 sizeof(struct mii_softc), tqphymatch, tqphyattach, mii_phy_detach, 99 mii_phy_activate 100 }; 101 102 int tqphy_service(struct mii_softc *, struct mii_data *, int); 103 void tqphy_status(struct mii_softc *); 104 105 const struct mii_phy_funcs tqphy_funcs = { 106 tqphy_service, tqphy_status, mii_phy_reset, 107 }; 108 109 const struct mii_phydesc tqphys[] = { 110 { MII_OUI_xxTSC, MII_MODEL_xxTSC_78Q2120, 111 MII_STR_xxTSC_78Q2120 }, 112 #if 0 113 { MII_OUI_xxTSC, MII_MODEL_TSC_78Q2121, 114 MII_STR_TSC_78Q2121 }, 115 #endif 116 { 0, 0, 117 NULL }, 118 }; 119 120 int 121 tqphymatch(struct device *parent, struct cfdata *match, void *aux) 122 { 123 struct mii_attach_args *ma = aux; 124 125 if (mii_phy_match(ma, tqphys) != NULL) { 126 /* The DIAG register is unreliable on early revisions. */ 127 if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxTSC_78Q2120 && 128 MII_REV(ma->mii_id2) <= 3) 129 return (0); 130 return (10); 131 } 132 133 return (0); 134 } 135 136 void 137 tqphyattach(struct device *parent, struct device *self, void *aux) 138 { 139 struct mii_softc *sc = (struct mii_softc *)self; 140 struct mii_attach_args *ma = aux; 141 struct mii_data *mii = ma->mii_data; 142 const struct mii_phydesc *mpd; 143 144 mpd = mii_phy_match(ma, tqphys); 145 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 146 147 sc->mii_inst = mii->mii_instance; 148 sc->mii_phy = ma->mii_phyno; 149 sc->mii_funcs = &tqphy_funcs; 150 sc->mii_pdata = mii; 151 sc->mii_flags = ma->mii_flags; 152 sc->mii_anegticks = 5; 153 154 /* 155 * Apparently, we can't do loopback on this PHY. 156 */ 157 sc->mii_flags |= MIIF_NOLOOP; 158 159 PHY_RESET(sc); 160 161 sc->mii_capabilities = 162 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 163 printf("%s: ", sc->mii_dev.dv_xname); 164 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 165 printf("no media present"); 166 else 167 mii_phy_add_media(sc); 168 printf("\n"); 169 } 170 171 int 172 tqphy_service(struct mii_softc *sc, struct mii_data *mii, 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 tqphy_status(struct mii_softc *sc) 235 { 236 struct mii_data *mii = sc->mii_pdata; 237 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 238 int bmsr, bmcr, diag; 239 240 mii->mii_media_status = IFM_AVALID; 241 mii->mii_media_active = IFM_ETHER; 242 243 bmsr = PHY_READ(sc, MII_BMSR) | 244 PHY_READ(sc, MII_BMSR); 245 if (bmsr & BMSR_LINK) 246 mii->mii_media_status |= IFM_ACTIVE; 247 248 bmcr = PHY_READ(sc, MII_BMCR); 249 if (bmcr & BMCR_ISO) { 250 mii->mii_media_active |= IFM_NONE; 251 mii->mii_media_status = 0; 252 return; 253 } 254 255 if (bmcr & BMCR_LOOP) 256 mii->mii_media_active |= IFM_LOOP; 257 258 if (bmcr & BMCR_AUTOEN) { 259 if ((bmsr & BMSR_ACOMP) == 0) { 260 /* Erg, still trying, I guess... */ 261 mii->mii_media_active |= IFM_NONE; 262 return; 263 } 264 diag = PHY_READ(sc, MII_TQPHY_DIAG); 265 if (diag & DIAG_RATE) 266 mii->mii_media_active |= IFM_100_TX; 267 else 268 mii->mii_media_active |= IFM_10_T; 269 if (diag & DIAG_DPLX) 270 mii->mii_media_active |= IFM_FDX; 271 } else 272 mii->mii_media_active = ife->ifm_media; 273 } 274
Indexes created Wed Sep 24 02:09:48 GMT 2025