tlphy.c revision 1.29
1 /* $NetBSD: tlphy.c,v 1.29 2001/05/31 16:02:29 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 * Driver for Texas Instruments's ThunderLAN PHYs 71 */ 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/kernel.h> 76 #include <sys/device.h> 77 #include <sys/socket.h> 78 #include <sys/errno.h> 79 80 #include <machine/bus.h> 81 82 #include <net/if.h> 83 #include <net/if_media.h> 84 85 #include <net/if_ether.h> 86 87 #include <dev/mii/mii.h> 88 #include <dev/mii/miivar.h> 89 #include <dev/mii/miidevs.h> 90 91 #include <dev/i2c/i2c_bus.h> 92 93 #include <dev/mii/tlphyreg.h> 94 #include <dev/mii/tlphyvar.h> 95 96 /* ThunderLAN PHY can only be on a ThunderLAN */ 97 #include <dev/pci/if_tlvar.h> 98 99 struct tlphy_softc { 100 struct mii_softc sc_mii; /* generic PHY */ 101 int sc_tlphycap; 102 int sc_need_acomp; 103 }; 104 105 int tlphymatch __P((struct device *, struct cfdata *, void *)); 106 void tlphyattach __P((struct device *, struct device *, void *)); 107 108 struct cfattach tlphy_ca = { 109 sizeof(struct tlphy_softc), tlphymatch, tlphyattach, mii_phy_detach, 110 mii_phy_activate 111 }; 112 113 int tlphy_service __P((struct mii_softc *, struct mii_data *, int)); 114 int tlphy_auto __P((struct tlphy_softc *, int)); 115 void tlphy_acomp __P((struct tlphy_softc *)); 116 void tlphy_status __P((struct mii_softc *)); 117 118 const struct mii_phy_funcs tlphy_funcs = { 119 tlphy_service, tlphy_status, mii_phy_reset, 120 }; 121 122 int 123 tlphymatch(parent, match, aux) 124 struct device *parent; 125 struct cfdata *match; 126 void *aux; 127 { 128 struct mii_attach_args *ma = aux; 129 130 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_TI && 131 MII_MODEL(ma->mii_id2) == MII_MODEL_TI_TLAN10T) 132 return (10); 133 134 return (0); 135 } 136 137 void 138 tlphyattach(parent, self, aux) 139 struct device *parent, *self; 140 void *aux; 141 { 142 struct tlphy_softc *sc = (struct tlphy_softc *)self; 143 struct tl_softc *tlsc = (struct tl_softc *)self->dv_parent; 144 struct mii_attach_args *ma = aux; 145 struct mii_data *mii = ma->mii_data; 146 const char *sep = ""; 147 148 printf(": %s, rev. %d\n", MII_STR_TI_TLAN10T, 149 MII_REV(ma->mii_id2)); 150 151 sc->sc_mii.mii_inst = mii->mii_instance; 152 sc->sc_mii.mii_phy = ma->mii_phyno; 153 sc->sc_mii.mii_funcs = &tlphy_funcs; 154 sc->sc_mii.mii_pdata = mii; 155 sc->sc_mii.mii_flags = mii->mii_flags; 156 sc->sc_mii.mii_anegticks = 5; 157 158 PHY_RESET(&sc->sc_mii); 159 160 /* 161 * Note that if we're on a device that also supports 100baseTX, 162 * we are not going to want to use the built-in 10baseT port, 163 * since there will be another PHY on the MII wired up to the 164 * UTP connector. The parent indicates this to us by specifying 165 * the TLPHY_MEDIA_NO_10_T bit. 166 */ 167 sc->sc_tlphycap = tlsc->tl_product->tp_tlphymedia; 168 if ((sc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0) 169 sc->sc_mii.mii_capabilities = 170 PHY_READ(&sc->sc_mii, MII_BMSR) & ma->mii_capmask; 171 else 172 sc->sc_mii.mii_capabilities = 0; 173 174 175 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 176 #define PRINT(s) printf("%s%s", sep, s); sep = ", " 177 178 printf("%s: ", sc->sc_mii.mii_dev.dv_xname); 179 if (sc->sc_tlphycap) { 180 if (sc->sc_tlphycap & TLPHY_MEDIA_10_2) { 181 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0, 182 sc->sc_mii.mii_inst), 0); 183 PRINT("10base2"); 184 } else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5) { 185 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 186 sc->sc_mii.mii_inst), 0); 187 PRINT("10base5"); 188 } 189 } 190 if (sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) { 191 printf("%s", sep); 192 mii_phy_add_media(&sc->sc_mii); 193 } else if ((sc->sc_tlphycap & 194 (TLPHY_MEDIA_10_2 | TLPHY_MEDIA_10_5)) == 0) 195 printf("no media present"); 196 printf("\n"); 197 #undef ADD 198 #undef PRINT 199 } 200 201 int 202 tlphy_service(self, mii, cmd) 203 struct mii_softc *self; 204 struct mii_data *mii; 205 int cmd; 206 { 207 struct tlphy_softc *sc = (struct tlphy_softc *)self; 208 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 209 int reg; 210 211 if ((sc->sc_mii.mii_dev.dv_flags & DVF_ACTIVE) == 0) 212 return (ENXIO); 213 214 if ((sc->sc_mii.mii_flags & MIIF_DOINGAUTO) == 0 && sc->sc_need_acomp) 215 tlphy_acomp(sc); 216 217 switch (cmd) { 218 case MII_POLLSTAT: 219 /* 220 * If we're not polling our PHY instance, just return. 221 */ 222 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) 223 return (0); 224 break; 225 226 case MII_MEDIACHG: 227 /* 228 * If the media indicates a different PHY instance, 229 * isolate ourselves. 230 */ 231 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) { 232 reg = PHY_READ(&sc->sc_mii, MII_BMCR); 233 PHY_WRITE(&sc->sc_mii, MII_BMCR, reg | BMCR_ISO); 234 return (0); 235 } 236 237 /* 238 * If the interface is not up, don't do anything. 239 */ 240 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 241 break; 242 243 switch (IFM_SUBTYPE(ife->ifm_media)) { 244 case IFM_AUTO: 245 /* 246 * The ThunderLAN PHY doesn't self-configure after 247 * an autonegotiation cycle, so there's no such 248 * thing as "already in auto mode". 249 */ 250 (void) tlphy_auto(sc, 1); 251 break; 252 case IFM_10_2: 253 case IFM_10_5: 254 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); 255 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL); 256 delay(100000); 257 break; 258 default: 259 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0); 260 delay(100000); 261 mii_phy_setmedia(&sc->sc_mii); 262 } 263 break; 264 265 case MII_TICK: 266 /* 267 * If we're not currently selected, just return. 268 */ 269 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) 270 return (0); 271 272 /* 273 * Only used for autonegotiation. 274 */ 275 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 276 return (0); 277 278 /* 279 * Is the interface even up? 280 */ 281 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 282 return (0); 283 284 /* 285 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?! 286 */ 287 288 if (mii_phy_tick(&sc->sc_mii) == EJUSTRETURN) 289 return (0); 290 break; 291 292 case MII_DOWN: 293 mii_phy_down(&sc->sc_mii); 294 return (0); 295 } 296 297 /* Update the media status. */ 298 mii_phy_status(&sc->sc_mii); 299 300 /* Callback if something changed. */ 301 mii_phy_update(&sc->sc_mii, cmd); 302 return (0); 303 } 304 305 void 306 tlphy_status(physc) 307 struct mii_softc *physc; 308 { 309 struct tlphy_softc *sc = (void *) physc; 310 struct mii_data *mii = sc->sc_mii.mii_pdata; 311 struct tl_softc *tlsc = (struct tl_softc *)sc->sc_mii.mii_dev.dv_parent; 312 int bmsr, bmcr, tlctrl; 313 314 mii->mii_media_status = IFM_AVALID; 315 mii->mii_media_active = IFM_ETHER; 316 317 bmcr = PHY_READ(&sc->sc_mii, MII_BMCR); 318 if (bmcr & BMCR_ISO) { 319 mii->mii_media_active |= IFM_NONE; 320 mii->mii_media_status = 0; 321 return; 322 } 323 324 tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL); 325 if (tlctrl & CTRL_AUISEL) { 326 if (sc->sc_tlphycap & TLPHY_MEDIA_10_2) 327 mii->mii_media_active |= IFM_10_2; 328 else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5) 329 mii->mii_media_active |= IFM_10_5; 330 else 331 printf("%s: AUI selected with no matching media !\n", 332 sc->sc_mii.mii_dev.dv_xname); 333 if (tlsc->tl_flags & TL_IFACT) 334 mii->mii_media_status |= IFM_ACTIVE; 335 return; 336 } 337 338 bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) | 339 PHY_READ(&sc->sc_mii, MII_BMSR); 340 if (bmsr & BMSR_LINK) 341 mii->mii_media_status |= IFM_ACTIVE; 342 343 if (bmcr & BMCR_LOOP) 344 mii->mii_media_active |= IFM_LOOP; 345 346 /* 347 * Grr, braindead ThunderLAN PHY doesn't have any way to 348 * tell which media is actually active. (Note it also 349 * doesn't self-configure after autonegotiation.) We 350 * just have to report what's in the BMCR. 351 */ 352 if (bmcr & BMCR_FDX) 353 mii->mii_media_active |= IFM_FDX; 354 mii->mii_media_active |= IFM_10_T; 355 } 356 357 int 358 tlphy_auto(sc, waitfor) 359 struct tlphy_softc *sc; 360 int waitfor; 361 { 362 int error; 363 364 switch ((error = mii_phy_auto(&sc->sc_mii, waitfor))) { 365 case EIO: 366 /* 367 * Just assume we're not in full-duplex mode. 368 * XXX Check link and try AUI/BNC? 369 */ 370 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); 371 break; 372 373 case EJUSTRETURN: 374 /* Flag that we need to program when it completes. */ 375 sc->sc_need_acomp = 1; 376 break; 377 378 default: 379 tlphy_acomp(sc); 380 } 381 382 return (error); 383 } 384 385 void 386 tlphy_acomp(sc) 387 struct tlphy_softc *sc; 388 { 389 int aner, anlpar; 390 391 sc->sc_need_acomp = 0; 392 393 /* 394 * Grr, braindead ThunderLAN PHY doesn't self-configure 395 * after autonegotiation. We have to do it ourselves 396 * based on the link partner status. 397 */ 398 399 aner = PHY_READ(&sc->sc_mii, MII_ANER); 400 if (aner & ANER_LPAN) { 401 anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) & 402 PHY_READ(&sc->sc_mii, MII_ANAR); 403 if (anlpar & ANAR_10_FD) { 404 PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX); 405 return; 406 } 407 } 408 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); 409 } 410
Indexes created Wed Sep 24 05:09:52 GMT 2025