tlphy.c revision 1.26
1 /* $NetBSD: tlphy.c,v 1.26 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 * 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_xxTI && 131 MII_MODEL(ma->mii_id2) == MII_MODEL_xxTI_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_xxTI_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; 156 157 PHY_RESET(&sc->sc_mii); 158 159 /* 160 * Note that if we're on a device that also supports 100baseTX, 161 * we are not going to want to use the built-in 10baseT port, 162 * since there will be another PHY on the MII wired up to the 163 * UTP connector. The parent indicates this to us by specifying 164 * the TLPHY_MEDIA_NO_10_T bit. 165 */ 166 sc->sc_tlphycap = tlsc->tl_product->tp_tlphymedia; 167 if ((sc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0) 168 sc->sc_mii.mii_capabilities = 169 PHY_READ(&sc->sc_mii, MII_BMSR) & ma->mii_capmask; 170 else 171 sc->sc_mii.mii_capabilities = 0; 172 173 174 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 175 #define PRINT(s) printf("%s%s", sep, s); sep = ", " 176 177 printf("%s: ", sc->sc_mii.mii_dev.dv_xname); 178 if (sc->sc_tlphycap) { 179 if (sc->sc_tlphycap & TLPHY_MEDIA_10_2) { 180 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0, 181 sc->sc_mii.mii_inst), 0); 182 PRINT("10base2"); 183 } else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5) { 184 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 185 sc->sc_mii.mii_inst), 0); 186 PRINT("10base5"); 187 } 188 } 189 if (sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) { 190 printf(sep); 191 mii_phy_add_media(&sc->sc_mii); 192 } else if ((sc->sc_tlphycap & 193 (TLPHY_MEDIA_10_2 | TLPHY_MEDIA_10_5)) == 0) 194 printf("no media present"); 195 printf("\n"); 196 #undef ADD 197 #undef PRINT 198 } 199 200 int 201 tlphy_service(self, mii, cmd) 202 struct mii_softc *self; 203 struct mii_data *mii; 204 int cmd; 205 { 206 struct tlphy_softc *sc = (struct tlphy_softc *)self; 207 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 208 int reg; 209 210 if ((sc->sc_mii.mii_dev.dv_flags & DVF_ACTIVE) == 0) 211 return (ENXIO); 212 213 if ((sc->sc_mii.mii_flags & MIIF_DOINGAUTO) == 0 && sc->sc_need_acomp) 214 tlphy_acomp(sc); 215 216 switch (cmd) { 217 case MII_POLLSTAT: 218 /* 219 * If we're not polling our PHY instance, just return. 220 */ 221 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) 222 return (0); 223 break; 224 225 case MII_MEDIACHG: 226 /* 227 * If the media indicates a different PHY instance, 228 * isolate ourselves. 229 */ 230 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) { 231 reg = PHY_READ(&sc->sc_mii, MII_BMCR); 232 PHY_WRITE(&sc->sc_mii, MII_BMCR, reg | BMCR_ISO); 233 return (0); 234 } 235 236 /* 237 * If the interface is not up, don't do anything. 238 */ 239 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 240 break; 241 242 switch (IFM_SUBTYPE(ife->ifm_media)) { 243 case IFM_AUTO: 244 /* 245 * The ThunderLAN PHY doesn't self-configure after 246 * an autonegotiation cycle, so there's no such 247 * thing as "already in auto mode". 248 */ 249 (void) tlphy_auto(sc, 1); 250 break; 251 case IFM_10_2: 252 case IFM_10_5: 253 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); 254 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL); 255 delay(100000); 256 break; 257 default: 258 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0); 259 delay(100000); 260 mii_phy_setmedia(&sc->sc_mii); 261 } 262 break; 263 264 case MII_TICK: 265 /* 266 * If we're not currently selected, just return. 267 */ 268 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) 269 return (0); 270 271 /* 272 * Only used for autonegotiation. 273 */ 274 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 275 return (0); 276 277 /* 278 * Is the interface even up? 279 */ 280 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 281 return (0); 282 283 /* 284 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?! 285 */ 286 287 if (mii_phy_tick(&sc->sc_mii) == EJUSTRETURN) 288 return (0); 289 break; 290 291 case MII_DOWN: 292 mii_phy_down(&sc->sc_mii); 293 return (0); 294 } 295 296 /* Update the media status. */ 297 mii_phy_status(&sc->sc_mii); 298 299 /* Callback if something changed. */ 300 mii_phy_update(&sc->sc_mii, cmd); 301 return (0); 302 } 303 304 void 305 tlphy_status(physc) 306 struct mii_softc *physc; 307 { 308 struct tlphy_softc *sc = (void *) physc; 309 struct mii_data *mii = sc->sc_mii.mii_pdata; 310 struct tl_softc *tlsc = (struct tl_softc *)sc->sc_mii.mii_dev.dv_parent; 311 int bmsr, bmcr, tlctrl; 312 313 mii->mii_media_status = IFM_AVALID; 314 mii->mii_media_active = IFM_ETHER; 315 316 bmcr = PHY_READ(&sc->sc_mii, MII_BMCR); 317 if (bmcr & BMCR_ISO) { 318 mii->mii_media_active |= IFM_NONE; 319 mii->mii_media_status = 0; 320 return; 321 } 322 323 tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL); 324 if (tlctrl & CTRL_AUISEL) { 325 if (sc->sc_tlphycap & TLPHY_MEDIA_10_2) 326 mii->mii_media_active |= IFM_10_2; 327 else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5) 328 mii->mii_media_active |= IFM_10_5; 329 else 330 printf("%s: AUI selected with no matching media !\n", 331 sc->sc_mii.mii_dev.dv_xname); 332 if (tlsc->tl_flags & TL_IFACT) 333 mii->mii_media_status |= IFM_ACTIVE; 334 return; 335 } 336 337 bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) | 338 PHY_READ(&sc->sc_mii, MII_BMSR); 339 if (bmsr & BMSR_LINK) 340 mii->mii_media_status |= IFM_ACTIVE; 341 342 if (bmcr & BMCR_LOOP) 343 mii->mii_media_active |= IFM_LOOP; 344 345 /* 346 * Grr, braindead ThunderLAN PHY doesn't have any way to 347 * tell which media is actually active. (Note it also 348 * doesn't self-configure after autonegotiation.) We 349 * just have to report what's in the BMCR. 350 */ 351 if (bmcr & BMCR_FDX) 352 mii->mii_media_active |= IFM_FDX; 353 mii->mii_media_active |= IFM_10_T; 354 } 355 356 int 357 tlphy_auto(sc, waitfor) 358 struct tlphy_softc *sc; 359 int waitfor; 360 { 361 int error; 362 363 switch ((error = mii_phy_auto(&sc->sc_mii, waitfor))) { 364 case EIO: 365 /* 366 * Just assume we're not in full-duplex mode. 367 * XXX Check link and try AUI/BNC? 368 */ 369 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); 370 break; 371 372 case EJUSTRETURN: 373 /* Flag that we need to program when it completes. */ 374 sc->sc_need_acomp = 1; 375 break; 376 377 default: 378 tlphy_acomp(sc); 379 } 380 381 return (error); 382 } 383 384 void 385 tlphy_acomp(sc) 386 struct tlphy_softc *sc; 387 { 388 int aner, anlpar; 389 390 sc->sc_need_acomp = 0; 391 392 /* 393 * Grr, braindead ThunderLAN PHY doesn't self-configure 394 * after autonegotiation. We have to do it ourselves 395 * based on the link partner status. 396 */ 397 398 aner = PHY_READ(&sc->sc_mii, MII_ANER); 399 if (aner & ANER_LPAN) { 400 anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) & 401 PHY_READ(&sc->sc_mii, MII_ANAR); 402 if (anlpar & ANAR_10_FD) { 403 PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX); 404 return; 405 } 406 } 407 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); 408 } 409
Indexes created Tue Sep 23 07:09:52 GMT 2025