tlphy.c revision 1.30
1 /* $NetBSD: tlphy.c,v 1.30 2001/06/02 21:39:41 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 const struct mii_phydesc tlphys[] = { 123 { MII_OUI_TI, MII_MODEL_TI_TLAN10T, 124 MII_STR_TI_TLAN10T }, 125 126 { 0, 0, 127 NULL }, 128 }; 129 130 int 131 tlphymatch(parent, match, aux) 132 struct device *parent; 133 struct cfdata *match; 134 void *aux; 135 { 136 struct mii_attach_args *ma = aux; 137 138 if (mii_phy_match(ma, tlphys) != NULL) 139 return (10); 140 141 return (0); 142 } 143 144 void 145 tlphyattach(parent, self, aux) 146 struct device *parent, *self; 147 void *aux; 148 { 149 struct tlphy_softc *sc = (struct tlphy_softc *)self; 150 struct tl_softc *tlsc = (struct tl_softc *)self->dv_parent; 151 struct mii_attach_args *ma = aux; 152 struct mii_data *mii = ma->mii_data; 153 const struct mii_phydesc *mpd; 154 const char *sep = ""; 155 156 mpd = mii_phy_match(ma, tlphys); 157 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 158 159 sc->sc_mii.mii_inst = mii->mii_instance; 160 sc->sc_mii.mii_phy = ma->mii_phyno; 161 sc->sc_mii.mii_funcs = &tlphy_funcs; 162 sc->sc_mii.mii_pdata = mii; 163 sc->sc_mii.mii_flags = mii->mii_flags; 164 sc->sc_mii.mii_anegticks = 5; 165 166 PHY_RESET(&sc->sc_mii); 167 168 /* 169 * Note that if we're on a device that also supports 100baseTX, 170 * we are not going to want to use the built-in 10baseT port, 171 * since there will be another PHY on the MII wired up to the 172 * UTP connector. The parent indicates this to us by specifying 173 * the TLPHY_MEDIA_NO_10_T bit. 174 */ 175 sc->sc_tlphycap = tlsc->tl_product->tp_tlphymedia; 176 if ((sc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0) 177 sc->sc_mii.mii_capabilities = 178 PHY_READ(&sc->sc_mii, MII_BMSR) & ma->mii_capmask; 179 else 180 sc->sc_mii.mii_capabilities = 0; 181 182 183 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 184 #define PRINT(s) printf("%s%s", sep, s); sep = ", " 185 186 printf("%s: ", sc->sc_mii.mii_dev.dv_xname); 187 if (sc->sc_tlphycap) { 188 if (sc->sc_tlphycap & TLPHY_MEDIA_10_2) { 189 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0, 190 sc->sc_mii.mii_inst), 0); 191 PRINT("10base2"); 192 } else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5) { 193 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 194 sc->sc_mii.mii_inst), 0); 195 PRINT("10base5"); 196 } 197 } 198 if (sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) { 199 printf("%s", sep); 200 mii_phy_add_media(&sc->sc_mii); 201 } else if ((sc->sc_tlphycap & 202 (TLPHY_MEDIA_10_2 | TLPHY_MEDIA_10_5)) == 0) 203 printf("no media present"); 204 printf("\n"); 205 #undef ADD 206 #undef PRINT 207 } 208 209 int 210 tlphy_service(self, mii, cmd) 211 struct mii_softc *self; 212 struct mii_data *mii; 213 int cmd; 214 { 215 struct tlphy_softc *sc = (struct tlphy_softc *)self; 216 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 217 int reg; 218 219 if ((sc->sc_mii.mii_dev.dv_flags & DVF_ACTIVE) == 0) 220 return (ENXIO); 221 222 if ((sc->sc_mii.mii_flags & MIIF_DOINGAUTO) == 0 && sc->sc_need_acomp) 223 tlphy_acomp(sc); 224 225 switch (cmd) { 226 case MII_POLLSTAT: 227 /* 228 * If we're not polling our PHY instance, just return. 229 */ 230 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) 231 return (0); 232 break; 233 234 case MII_MEDIACHG: 235 /* 236 * If the media indicates a different PHY instance, 237 * isolate ourselves. 238 */ 239 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) { 240 reg = PHY_READ(&sc->sc_mii, MII_BMCR); 241 PHY_WRITE(&sc->sc_mii, MII_BMCR, reg | BMCR_ISO); 242 return (0); 243 } 244 245 /* 246 * If the interface is not up, don't do anything. 247 */ 248 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 249 break; 250 251 switch (IFM_SUBTYPE(ife->ifm_media)) { 252 case IFM_AUTO: 253 /* 254 * The ThunderLAN PHY doesn't self-configure after 255 * an autonegotiation cycle, so there's no such 256 * thing as "already in auto mode". 257 */ 258 (void) tlphy_auto(sc, 1); 259 break; 260 case IFM_10_2: 261 case IFM_10_5: 262 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); 263 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL); 264 delay(100000); 265 break; 266 default: 267 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0); 268 delay(100000); 269 mii_phy_setmedia(&sc->sc_mii); 270 } 271 break; 272 273 case MII_TICK: 274 /* 275 * If we're not currently selected, just return. 276 */ 277 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) 278 return (0); 279 280 /* 281 * Only used for autonegotiation. 282 */ 283 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 284 return (0); 285 286 /* 287 * Is the interface even up? 288 */ 289 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 290 return (0); 291 292 /* 293 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?! 294 */ 295 296 if (mii_phy_tick(&sc->sc_mii) == EJUSTRETURN) 297 return (0); 298 break; 299 300 case MII_DOWN: 301 mii_phy_down(&sc->sc_mii); 302 return (0); 303 } 304 305 /* Update the media status. */ 306 mii_phy_status(&sc->sc_mii); 307 308 /* Callback if something changed. */ 309 mii_phy_update(&sc->sc_mii, cmd); 310 return (0); 311 } 312 313 void 314 tlphy_status(physc) 315 struct mii_softc *physc; 316 { 317 struct tlphy_softc *sc = (void *) physc; 318 struct mii_data *mii = sc->sc_mii.mii_pdata; 319 struct tl_softc *tlsc = (struct tl_softc *)sc->sc_mii.mii_dev.dv_parent; 320 int bmsr, bmcr, tlctrl; 321 322 mii->mii_media_status = IFM_AVALID; 323 mii->mii_media_active = IFM_ETHER; 324 325 bmcr = PHY_READ(&sc->sc_mii, MII_BMCR); 326 if (bmcr & BMCR_ISO) { 327 mii->mii_media_active |= IFM_NONE; 328 mii->mii_media_status = 0; 329 return; 330 } 331 332 tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL); 333 if (tlctrl & CTRL_AUISEL) { 334 if (sc->sc_tlphycap & TLPHY_MEDIA_10_2) 335 mii->mii_media_active |= IFM_10_2; 336 else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5) 337 mii->mii_media_active |= IFM_10_5; 338 else 339 printf("%s: AUI selected with no matching media !\n", 340 sc->sc_mii.mii_dev.dv_xname); 341 if (tlsc->tl_flags & TL_IFACT) 342 mii->mii_media_status |= IFM_ACTIVE; 343 return; 344 } 345 346 bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) | 347 PHY_READ(&sc->sc_mii, MII_BMSR); 348 if (bmsr & BMSR_LINK) 349 mii->mii_media_status |= IFM_ACTIVE; 350 351 if (bmcr & BMCR_LOOP) 352 mii->mii_media_active |= IFM_LOOP; 353 354 /* 355 * Grr, braindead ThunderLAN PHY doesn't have any way to 356 * tell which media is actually active. (Note it also 357 * doesn't self-configure after autonegotiation.) We 358 * just have to report what's in the BMCR. 359 */ 360 if (bmcr & BMCR_FDX) 361 mii->mii_media_active |= IFM_FDX; 362 mii->mii_media_active |= IFM_10_T; 363 } 364 365 int 366 tlphy_auto(sc, waitfor) 367 struct tlphy_softc *sc; 368 int waitfor; 369 { 370 int error; 371 372 switch ((error = mii_phy_auto(&sc->sc_mii, waitfor))) { 373 case EIO: 374 /* 375 * Just assume we're not in full-duplex mode. 376 * XXX Check link and try AUI/BNC? 377 */ 378 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); 379 break; 380 381 case EJUSTRETURN: 382 /* Flag that we need to program when it completes. */ 383 sc->sc_need_acomp = 1; 384 break; 385 386 default: 387 tlphy_acomp(sc); 388 } 389 390 return (error); 391 } 392 393 void 394 tlphy_acomp(sc) 395 struct tlphy_softc *sc; 396 { 397 int aner, anlpar; 398 399 sc->sc_need_acomp = 0; 400 401 /* 402 * Grr, braindead ThunderLAN PHY doesn't self-configure 403 * after autonegotiation. We have to do it ourselves 404 * based on the link partner status. 405 */ 406 407 aner = PHY_READ(&sc->sc_mii, MII_ANER); 408 if (aner & ANER_LPAN) { 409 anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) & 410 PHY_READ(&sc->sc_mii, MII_ANAR); 411 if (anlpar & ANAR_10_FD) { 412 PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX); 413 return; 414 } 415 } 416 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); 417 } 418
Indexes created Thu Sep 25 16:09:42 GMT 2025