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 1.3 2003/08/07 21:17:03 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 __P((device_t)); 94 static int acphy_attach __P((device_t)); 95 static int acphy_detach __P((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 __P((struct mii_softc *, struct mii_data *, int)); 117 void acphy_reset __P((struct mii_softc *)); 118 void acphy_status __P((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 sc->mii_dev = device_get_parent(dev); 146 mii = device_get_softc(sc->mii_dev); 147 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 148 149 sc->mii_inst = mii->mii_instance; 150 sc->mii_phy = ma->mii_phyno; 151 sc->mii_service = acphy_service; 152 sc->mii_pdata = mii; 153 sc->mii_flags |= MIIF_NOISOLATE; 154 155 acphy_reset(sc); 156 157 mii->mii_instance++; 158 159 sc->mii_capabilities = 160 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 161 device_printf(dev, " "); 162 if (sc->mii_capabilities & BMSR_MEDIAMASK) 163 mii_add_media(mii, sc->mii_capabilities, 164 sc->mii_inst); 165 printf("\n"); 166 167 MIIBUS_MEDIAINIT(sc->mii_dev); 168 return (0); 169 } 170 171 static int acphy_detach(dev) 172 device_t dev; 173 { 174 struct mii_softc *sc; 175 struct mii_data *mii; 176 177 sc = device_get_softc(dev); 178 mii = device_get_softc(device_get_parent(dev)); 179 sc->mii_dev = NULL; 180 LIST_REMOVE(sc, mii_list); 181 182 return(0); 183 } 184 185 int 186 acphy_service(sc, mii, cmd) 187 struct mii_softc *sc; 188 struct mii_data *mii; 189 int cmd; 190 { 191 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 192 int reg; 193 194 /* 195 * If we're not selected, then do nothing, just isolate and power 196 * down, if changing media. 197 */ 198 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 199 if (cmd == MII_MEDIACHG) { 200 reg = PHY_READ(sc, MII_BMCR); 201 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO | BMCR_PDOWN); 202 } 203 204 return (0); 205 } 206 207 switch (cmd) { 208 case MII_POLLSTAT: 209 break; 210 211 case MII_MEDIACHG: 212 /* 213 * If the interface is not up, don't do anything. 214 */ 215 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 216 break; 217 218 /* Wake & deisolate up if necessary */ 219 reg = PHY_READ(sc, MII_BMCR); 220 if (reg & (BMCR_ISO | BMCR_PDOWN)) 221 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 222 223 switch (IFM_SUBTYPE(ife->ifm_media)) { 224 case IFM_AUTO: 225 /* 226 * If we're already in auto mode, just return. 227 */ 228 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 229 return (0); 230 231 (void) mii_phy_auto(sc, 1); 232 break; 233 234 default: 235 /* 236 * BMCR data is stored in the ifmedia entry. 237 */ 238 PHY_WRITE(sc, MII_ANAR, 239 mii_anar(ife->ifm_media)); 240 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 241 } 242 break; 243 244 case MII_TICK: 245 /* 246 * Is the interface even up? 247 */ 248 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 249 return (0); 250 251 /* 252 * Only used for autonegotiation. 253 */ 254 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 255 break; 256 257 /* 258 * This PHY's autonegotiation doesn't need to be kicked. 259 */ 260 break; 261 } 262 263 /* Update the media status. */ 264 acphy_status(sc); 265 266 /* Callback if something changed. */ 267 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) { 268 MIIBUS_STATCHG(sc->mii_dev); 269 sc->mii_active = mii->mii_media_active; 270 } 271 return (0); 272 } 273 274 void 275 acphy_status(sc) 276 struct mii_softc *sc; 277 { 278 struct mii_data *mii = sc->mii_pdata; 279 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 280 int bmsr, bmcr, diag; 281 282 mii->mii_media_status = IFM_AVALID; 283 mii->mii_media_active = IFM_ETHER; 284 285 bmsr = PHY_READ(sc, MII_BMSR) | 286 PHY_READ(sc, MII_BMSR); 287 if (bmsr & BMSR_LINK) 288 mii->mii_media_status |= IFM_ACTIVE; 289 290 bmcr = PHY_READ(sc, MII_BMCR); 291 if (bmcr & BMCR_ISO) { 292 mii->mii_media_active |= IFM_NONE; 293 mii->mii_media_status = 0; 294 return; 295 } 296 297 if (bmcr & BMCR_LOOP) 298 mii->mii_media_active |= IFM_LOOP; 299 300 if (bmcr & BMCR_AUTOEN) { 301 if ((bmsr & BMSR_ACOMP) == 0) { 302 /* Erg, still trying, I guess... */ 303 mii->mii_media_active |= IFM_NONE; 304 return; 305 } 306 diag = PHY_READ(sc, MII_ACPHY_DIAG); 307 if (diag & AC_DIAG_SPEED) 308 mii->mii_media_active |= IFM_100_TX; 309 else 310 mii->mii_media_active |= IFM_10_T; 311 312 if (diag & AC_DIAG_DUPLEX) 313 mii->mii_media_active |= IFM_FDX; 314 } else 315 mii->mii_media_active = ife->ifm_media; 316 } 317 318 void 319 acphy_reset(sc) 320 struct mii_softc *sc; 321 { 322 323 mii_phy_reset(sc); 324 PHY_WRITE(sc, MII_ACPHY_INT, 0); 325 } 326