1 /*- 2 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 7 * NASA Ames Research Center. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 * 37 * $FreeBSD: src/sys/dev/mii/acphy.c,v 1.2.2.2 2002/10/21 21:20:19 semenu Exp $ 38 * $DragonFly: src/sys/dev/netif/mii_layer/acphy.c,v 1.5 2004/09/18 19:32:59 dillon Exp $ 39 */ 40 41 /* 42 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by Manuel Bouyer. 55 * 4. The name of the author may not be used to endorse or promote products 56 * derived from this software without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 /* 71 * Driver for Altima AC101 10/100 PHY 72 */ 73 74 #include <sys/param.h> 75 #include <sys/systm.h> 76 #include <sys/kernel.h> 77 #include <sys/socket.h> 78 #include <sys/errno.h> 79 #include <sys/module.h> 80 #include <sys/bus.h> 81 82 #include <net/if.h> 83 #include <net/if_media.h> 84 85 #include "mii.h" 86 #include "miivar.h" 87 #include "miidevs.h" 88 89 #include "acphyreg.h" 90 91 #include "miibus_if.h" 92 93 static int acphy_probe (device_t); 94 static int acphy_attach (device_t); 95 static int acphy_detach (device_t); 96 97 static device_method_t acphy_methods[] = { 98 /* device interface */ 99 DEVMETHOD(device_probe, acphy_probe), 100 DEVMETHOD(device_attach, acphy_attach), 101 DEVMETHOD(device_detach, acphy_detach), 102 DEVMETHOD(device_shutdown, bus_generic_shutdown), 103 { 0, 0 } 104 }; 105 106 static devclass_t acphy_devclass; 107 108 static driver_t acphy_driver = { 109 "acphy", 110 acphy_methods, 111 sizeof(struct mii_softc) 112 }; 113 114 DRIVER_MODULE(acphy, miibus, acphy_driver, acphy_devclass, 0, 0); 115 116 int acphy_service (struct mii_softc *, struct mii_data *, int); 117 void acphy_reset (struct mii_softc *); 118 void acphy_status (struct mii_softc *); 119 120 static int acphy_probe(dev) 121 device_t dev; 122 { 123 struct mii_attach_args *ma; 124 125 ma = device_get_ivars(dev); 126 127 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && 128 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101) { 129 device_set_desc(dev, MII_STR_xxALTIMA_AC101); 130 } else 131 return (ENXIO); 132 133 return (0); 134 } 135 136 static int acphy_attach(dev) 137 device_t dev; 138 { 139 struct mii_softc *sc; 140 struct mii_attach_args *ma; 141 struct mii_data *mii; 142 143 sc = device_get_softc(dev); 144 ma = device_get_ivars(dev); 145 mii_softc_init(sc); 146 sc->mii_dev = device_get_parent(dev); 147 mii = device_get_softc(sc->mii_dev); 148 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 149 150 sc->mii_inst = mii->mii_instance; 151 sc->mii_phy = ma->mii_phyno; 152 sc->mii_service = acphy_service; 153 sc->mii_pdata = mii; 154 sc->mii_flags |= MIIF_NOISOLATE; 155 156 acphy_reset(sc); 157 158 mii->mii_instance++; 159 160 sc->mii_capabilities = 161 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 162 device_printf(dev, " "); 163 if (sc->mii_capabilities & BMSR_MEDIAMASK) 164 mii_add_media(mii, sc->mii_capabilities, 165 sc->mii_inst); 166 printf("\n"); 167 168 MIIBUS_MEDIAINIT(sc->mii_dev); 169 return (0); 170 } 171 172 static int acphy_detach(dev) 173 device_t dev; 174 { 175 struct mii_softc *sc; 176 struct mii_data *mii; 177 178 sc = device_get_softc(dev); 179 mii = device_get_softc(device_get_parent(dev)); 180 sc->mii_dev = NULL; 181 LIST_REMOVE(sc, mii_list); 182 183 return(0); 184 } 185 186 int 187 acphy_service(sc, mii, cmd) 188 struct mii_softc *sc; 189 struct mii_data *mii; 190 int cmd; 191 { 192 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 193 int reg; 194 195 /* 196 * If we're not selected, then do nothing, just isolate and power 197 * down, if changing media. 198 */ 199 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 200 if (cmd == MII_MEDIACHG) { 201 reg = PHY_READ(sc, MII_BMCR); 202 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO | BMCR_PDOWN); 203 } 204 205 return (0); 206 } 207 208 switch (cmd) { 209 case MII_POLLSTAT: 210 break; 211 212 case MII_MEDIACHG: 213 /* 214 * If the interface is not up, don't do anything. 215 */ 216 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 217 break; 218 219 /* Wake & deisolate up if necessary */ 220 reg = PHY_READ(sc, MII_BMCR); 221 if (reg & (BMCR_ISO | BMCR_PDOWN)) 222 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 223 224 switch (IFM_SUBTYPE(ife->ifm_media)) { 225 case IFM_AUTO: 226 /* 227 * If we're already in auto mode, just return. 228 */ 229 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 230 return (0); 231 232 (void) mii_phy_auto(sc, 1); 233 break; 234 235 default: 236 /* 237 * BMCR data is stored in the ifmedia entry. 238 */ 239 PHY_WRITE(sc, MII_ANAR, 240 mii_anar(ife->ifm_media)); 241 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 242 } 243 break; 244 245 case MII_TICK: 246 /* 247 * Is the interface even up? 248 */ 249 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 250 return (0); 251 252 /* 253 * Only used for autonegotiation. 254 */ 255 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 256 break; 257 258 /* 259 * This PHY's autonegotiation doesn't need to be kicked. 260 */ 261 break; 262 } 263 264 /* Update the media status. */ 265 acphy_status(sc); 266 267 /* Callback if something changed. */ 268 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) { 269 MIIBUS_STATCHG(sc->mii_dev); 270 sc->mii_active = mii->mii_media_active; 271 } 272 return (0); 273 } 274 275 void 276 acphy_status(sc) 277 struct mii_softc *sc; 278 { 279 struct mii_data *mii = sc->mii_pdata; 280 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 281 int bmsr, bmcr, diag; 282 283 mii->mii_media_status = IFM_AVALID; 284 mii->mii_media_active = IFM_ETHER; 285 286 bmsr = PHY_READ(sc, MII_BMSR) | 287 PHY_READ(sc, MII_BMSR); 288 if (bmsr & BMSR_LINK) 289 mii->mii_media_status |= IFM_ACTIVE; 290 291 bmcr = PHY_READ(sc, MII_BMCR); 292 if (bmcr & BMCR_ISO) { 293 mii->mii_media_active |= IFM_NONE; 294 mii->mii_media_status = 0; 295 return; 296 } 297 298 if (bmcr & BMCR_LOOP) 299 mii->mii_media_active |= IFM_LOOP; 300 301 if (bmcr & BMCR_AUTOEN) { 302 if ((bmsr & BMSR_ACOMP) == 0) { 303 /* Erg, still trying, I guess... */ 304 mii->mii_media_active |= IFM_NONE; 305 return; 306 } 307 diag = PHY_READ(sc, MII_ACPHY_DIAG); 308 if (diag & AC_DIAG_SPEED) 309 mii->mii_media_active |= IFM_100_TX; 310 else 311 mii->mii_media_active |= IFM_10_T; 312 313 if (diag & AC_DIAG_DUPLEX) 314 mii->mii_media_active |= IFM_FDX; 315 } else 316 mii->mii_media_active = ife->ifm_media; 317 } 318 319 void 320 acphy_reset(sc) 321 struct mii_softc *sc; 322 { 323 324 mii_phy_reset(sc); 325 PHY_WRITE(sc, MII_ACPHY_INT, 0); 326 } 327