makphy.c revision 1.20
1 /* $NetBSD: makphy.c,v 1.20 2006/10/21 13:55:30 bouyer Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2000, 2001 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 the Marvell 88E1000 ``Alaska'' 10/100/1000 PHY. 71 */ 72 73 #include <sys/cdefs.h> 74 __KERNEL_RCSID(0, "$NetBSD: makphy.c,v 1.20 2006/10/21 13:55:30 bouyer Exp $"); 75 76 #include <sys/param.h> 77 #include <sys/systm.h> 78 #include <sys/kernel.h> 79 #include <sys/device.h> 80 #include <sys/socket.h> 81 #include <sys/errno.h> 82 83 #include <net/if.h> 84 #include <net/if_media.h> 85 86 #include <dev/mii/mii.h> 87 #include <dev/mii/miivar.h> 88 #include <dev/mii/miidevs.h> 89 90 #include <dev/mii/makphyreg.h> 91 92 static int makphymatch(struct device *, struct cfdata *, void *); 93 static void makphyattach(struct device *, struct device *, void *); 94 95 CFATTACH_DECL(makphy, sizeof(struct mii_softc), 96 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); 97 98 static int makphy_service(struct mii_softc *, struct mii_data *, int); 99 static void makphy_status(struct mii_softc *); 100 101 static const struct mii_phy_funcs makphy_funcs = { 102 makphy_service, makphy_status, mii_phy_reset, 103 }; 104 105 static const struct mii_phydesc makphys[] = { 106 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 107 MII_STR_xxMARVELL_E1000_3 }, 108 109 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 110 MII_STR_xxMARVELL_E1000_5 }, 111 112 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 113 MII_STR_xxMARVELL_E1011 }, 114 115 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 116 MII_STR_xxMARVELL_E1111 }, 117 118 { 0, 0, 119 NULL }, 120 }; 121 122 static int 123 makphymatch(struct device *parent __unused, struct cfdata *match __unused, 124 void *aux) 125 { 126 struct mii_attach_args *ma = aux; 127 128 if (mii_phy_match(ma, makphys) != NULL) 129 return (10); 130 131 return (0); 132 } 133 134 static void 135 makphyattach(struct device *parent __unused, struct device *self, void *aux) 136 { 137 struct mii_softc *sc = device_private(self); 138 struct mii_attach_args *ma = aux; 139 struct mii_data *mii = ma->mii_data; 140 const struct mii_phydesc *mpd; 141 142 mpd = mii_phy_match(ma, makphys); 143 aprint_naive(": Media interface\n"); 144 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 145 146 sc->mii_inst = mii->mii_instance; 147 sc->mii_phy = ma->mii_phyno; 148 sc->mii_funcs = &makphy_funcs; 149 sc->mii_pdata = mii; 150 sc->mii_flags = ma->mii_flags; 151 sc->mii_anegticks = 5; 152 153 PHY_RESET(sc); 154 155 sc->mii_capabilities = 156 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 157 if (sc->mii_capabilities & BMSR_EXTSTAT) 158 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 159 160 aprint_normal("%s: ", sc->mii_dev.dv_xname); 161 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 162 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 163 aprint_error("no media present"); 164 else 165 mii_phy_add_media(sc); 166 aprint_normal("\n"); 167 } 168 169 static int 170 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 171 { 172 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 173 int reg; 174 175 switch (cmd) { 176 case MII_POLLSTAT: 177 /* 178 * If we're not polling our PHY instance, just return. 179 */ 180 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 181 return (0); 182 break; 183 184 case MII_MEDIACHG: 185 /* 186 * If the media indicates a different PHY instance, 187 * isolate ourselves. 188 */ 189 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 190 reg = PHY_READ(sc, MII_BMCR); 191 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 192 return (0); 193 } 194 195 /* 196 * If the interface is not up, don't do anything. 197 */ 198 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 199 break; 200 201 mii_phy_setmedia(sc); 202 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 203 /* 204 * when not in auto mode, we need to restart nego 205 * anyway, or a switch from a fixed mode to another 206 * fixed mode may not be seen by the switch. 207 */ 208 PHY_WRITE(sc, MII_BMCR, 209 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 210 } 211 break; 212 213 case MII_TICK: 214 /* 215 * If we're not currently selected, just return. 216 */ 217 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 218 return (0); 219 220 if (mii_phy_tick(sc) == EJUSTRETURN) 221 return (0); 222 break; 223 224 case MII_DOWN: 225 mii_phy_down(sc); 226 return (0); 227 } 228 229 /* Update the media status. */ 230 mii_phy_status(sc); 231 232 /* Callback if something changed. */ 233 mii_phy_update(sc, cmd); 234 return (0); 235 } 236 237 static void 238 makphy_status(struct mii_softc *sc) 239 { 240 struct mii_data *mii = sc->mii_pdata; 241 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 242 int bmcr, pssr, gtsr; 243 244 mii->mii_media_status = IFM_AVALID; 245 mii->mii_media_active = IFM_ETHER; 246 247 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 248 249 if (pssr & PSSR_LINK) 250 mii->mii_media_status |= IFM_ACTIVE; 251 252 bmcr = PHY_READ(sc, MII_BMCR); 253 if (bmcr & BMCR_ISO) { 254 mii->mii_media_active |= IFM_NONE; 255 mii->mii_media_status = 0; 256 return; 257 } 258 259 if (bmcr & BMCR_LOOP) 260 mii->mii_media_active |= IFM_LOOP; 261 262 if (bmcr & BMCR_AUTOEN) { 263 /* 264 * The media status bits are only valid of autonegotiation 265 * has completed (or it's disabled). 266 */ 267 if ((pssr & PSSR_RESOLVED) == 0) { 268 /* Erg, still trying, I guess... */ 269 mii->mii_media_active |= IFM_NONE; 270 return; 271 } 272 273 switch (PSSR_SPEED_get(pssr)) { 274 case SPEED_1000: 275 mii->mii_media_active |= IFM_1000_T; 276 gtsr = PHY_READ(sc, MII_100T2SR); 277 if (gtsr & GTSR_MS_RES) 278 mii->mii_media_active |= IFM_ETH_MASTER; 279 break; 280 281 case SPEED_100: 282 mii->mii_media_active |= IFM_100_TX; 283 break; 284 285 case SPEED_10: 286 mii->mii_media_active |= IFM_10_T; 287 break; 288 289 default: 290 mii->mii_media_active |= IFM_NONE; 291 mii->mii_media_status = 0; 292 return; 293 } 294 295 if (pssr & PSSR_DUPLEX) 296 mii->mii_media_active |= 297 IFM_FDX | mii_phy_flowstatus(sc); 298 } else 299 mii->mii_media_active = ife->ifm_media; 300 } 301
Indexes created Fri Sep 26 08:10:20 GMT 2025