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 38 #include <sys/cdefs.h> 39 __FBSDID("$FreeBSD$"); 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/cdefs.h> 75 __FBSDID("$FreeBSD$"); 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/kernel.h> 80 #include <sys/socket.h> 81 #include <sys/errno.h> 82 #include <sys/module.h> 83 #include <sys/bus.h> 84 85 #include <net/if.h> 86 #include <net/if_media.h> 87 88 #include <dev/mii/mii.h> 89 #include <dev/mii/miivar.h> 90 #include "miidevs.h" 91 92 #include <dev/mii/acphyreg.h> 93 94 #include "miibus_if.h" 95 96 static int acphy_probe(device_t); 97 static int acphy_attach(device_t); 98 99 static device_method_t acphy_methods[] = { 100 /* device interface */ 101 DEVMETHOD(device_probe, acphy_probe), 102 DEVMETHOD(device_attach, acphy_attach), 103 DEVMETHOD(device_detach, mii_phy_detach), 104 DEVMETHOD(device_shutdown, bus_generic_shutdown), 105 { 0, 0 } 106 }; 107 108 static devclass_t acphy_devclass; 109 110 static driver_t acphy_driver = { 111 "acphy", 112 acphy_methods, 113 sizeof(struct mii_softc) 114 }; 115 116 DRIVER_MODULE(acphy, miibus, acphy_driver, acphy_devclass, 0, 0); 117 118 static int acphy_service(struct mii_softc *, struct mii_data *, int); 119 static void acphy_reset(struct mii_softc *); 120 static void acphy_status(struct mii_softc *); 121 122 static int 123 acphy_probe(dev) 124 device_t dev; 125 { 126 struct mii_attach_args *ma; 127 128 ma = device_get_ivars(dev); 129 130 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && 131 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101) { 132 device_set_desc(dev, MII_STR_xxALTIMA_AC101); 133 } else if(MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && 134 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101L) { 135 device_set_desc(dev, MII_STR_xxALTIMA_AC101L); 136 } else 137 return (ENXIO); 138 139 return (0); 140 } 141 142 static int 143 acphy_attach(dev) 144 device_t dev; 145 { 146 struct mii_softc *sc; 147 struct mii_attach_args *ma; 148 struct mii_data *mii; 149 150 sc = device_get_softc(dev); 151 ma = device_get_ivars(dev); 152 sc->mii_dev = device_get_parent(dev); 153 mii = device_get_softc(sc->mii_dev); 154 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 155 156 sc->mii_inst = mii->mii_instance; 157 sc->mii_phy = ma->mii_phyno; 158 sc->mii_service = acphy_service; 159 sc->mii_pdata = mii; 160 sc->mii_flags |= MIIF_NOISOLATE; 161 162 acphy_reset(sc); 163 164 mii->mii_instance++; 165 166 sc->mii_capabilities = 167 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 168 device_printf(dev, " "); 169 mii_add_media(sc); 170 printf("\n"); 171 172 MIIBUS_MEDIAINIT(sc->mii_dev); 173 return (0); 174 } 175 176 static int 177 acphy_service(sc, mii, cmd) 178 struct mii_softc *sc; 179 struct mii_data *mii; 180 int cmd; 181 { 182 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 183 int reg; 184 185 /* 186 * If we're not selected, then do nothing, just isolate and power 187 * down, if changing media. 188 */ 189 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 190 if (cmd == MII_MEDIACHG) { 191 reg = PHY_READ(sc, MII_BMCR); 192 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO | BMCR_PDOWN); 193 } 194 195 return (0); 196 } 197 198 switch (cmd) { 199 case MII_POLLSTAT: 200 break; 201 202 case MII_MEDIACHG: 203 /* 204 * If the interface is not up, don't do anything. 205 */ 206 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 207 break; 208 209 /* Wake & deisolate up if necessary */ 210 reg = PHY_READ(sc, MII_BMCR); 211 if (reg & (BMCR_ISO | BMCR_PDOWN)) 212 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 213 214 switch (IFM_SUBTYPE(ife->ifm_media)) { 215 case IFM_AUTO: 216 /* 217 * If we're already in auto mode, just return. 218 */ 219 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 220 return (0); 221 222 (void) mii_phy_auto(sc); 223 break; 224 225 default: 226 /* 227 * BMCR data is stored in the ifmedia entry. 228 */ 229 PHY_WRITE(sc, MII_ANAR, 230 mii_anar(ife->ifm_media)); 231 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 232 } 233 break; 234 235 case MII_TICK: 236 /* 237 * Is the interface even up? 238 */ 239 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 240 return (0); 241 242 /* 243 * Only used for autonegotiation. 244 */ 245 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 246 break; 247 248 /* 249 * This PHY's autonegotiation doesn't need to be kicked. 250 */ 251 break; 252 } 253 254 /* Update the media status. */ 255 acphy_status(sc); 256 257 /* Callback if something changed. */ 258 mii_phy_update(sc, cmd); 259 return (0); 260 } 261 262 static void 263 acphy_status(sc) 264 struct mii_softc *sc; 265 { 266 struct mii_data *mii = sc->mii_pdata; 267 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 268 int bmsr, bmcr, diag; 269 270 mii->mii_media_status = IFM_AVALID; 271 mii->mii_media_active = IFM_ETHER; 272 273 bmsr = PHY_READ(sc, MII_BMSR) | 274 PHY_READ(sc, MII_BMSR); 275 if (bmsr & BMSR_LINK) 276 mii->mii_media_status |= IFM_ACTIVE; 277 278 bmcr = PHY_READ(sc, MII_BMCR); 279 if (bmcr & BMCR_ISO) { 280 mii->mii_media_active |= IFM_NONE; 281 mii->mii_media_status = 0; 282 return; 283 } 284 285 if (bmcr & BMCR_LOOP) 286 mii->mii_media_active |= IFM_LOOP; 287 288 if (bmcr & BMCR_AUTOEN) { 289 if ((bmsr & BMSR_ACOMP) == 0) { 290 /* Erg, still trying, I guess... */ 291 mii->mii_media_active |= IFM_NONE; 292 return; 293 } 294 diag = PHY_READ(sc, MII_ACPHY_DIAG); 295 if (diag & AC_DIAG_SPEED) 296 mii->mii_media_active |= IFM_100_TX; 297 else 298 mii->mii_media_active |= IFM_10_T; 299 300 if (diag & AC_DIAG_DUPLEX) 301 mii->mii_media_active |= IFM_FDX; 302 } else 303 mii->mii_media_active = ife->ifm_media; 304 } 305 306 static void 307 acphy_reset(sc) 308 struct mii_softc *sc; 309 { 310 311 mii_phy_reset(sc); 312 PHY_WRITE(sc, MII_ACPHY_INT, 0); 313 } 314