glxtphy.c revision 1.12
1 /* $NetBSD: glxtphy.c,v 1.12 2004/08/23 06:16:06 thorpej 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 Level One LXT-1000 10/100/1000 PHY. 71 */ 72 73 #include <sys/cdefs.h> 74 __KERNEL_RCSID(0, "$NetBSD: glxtphy.c,v 1.12 2004/08/23 06:16:06 thorpej 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/glxtphyreg.h> 91 92 static int glxtphymatch(struct device *, struct cfdata *, void *); 93 static void glxtphyattach(struct device *, struct device *, void *); 94 95 CFATTACH_DECL(glxtphy, sizeof(struct mii_softc), 96 glxtphymatch, glxtphyattach, mii_phy_detach, mii_phy_activate); 97 98 static int glxtphy_service(struct mii_softc *, struct mii_data *, int); 99 static void glxtphy_status(struct mii_softc *); 100 101 static const struct mii_phy_funcs glxtphy_funcs = { 102 glxtphy_service, glxtphy_status, mii_phy_reset, 103 }; 104 105 static const struct mii_phydesc glxtphys[] = { 106 { MII_OUI_LEVEL1, MII_MODEL_LEVEL1_LXT1000_OLD, 107 MII_STR_LEVEL1_LXT1000_OLD }, 108 109 { MII_OUI_LEVEL1, MII_MODEL_LEVEL1_LXT1000_OLD, 110 MII_STR_LEVEL1_LXT1000_OLD }, 111 112 { 0, 0, 113 NULL }, 114 }; 115 116 static int 117 glxtphymatch(struct device *parent, struct cfdata *match, void *aux) 118 { 119 struct mii_attach_args *ma = aux; 120 121 if (mii_phy_match(ma, glxtphys) != NULL) 122 return (10); 123 124 return (0); 125 } 126 127 static void 128 glxtphyattach(struct device *parent, struct device *self, void *aux) 129 { 130 struct mii_softc *sc = (struct mii_softc *)self; 131 struct mii_attach_args *ma = aux; 132 struct mii_data *mii = ma->mii_data; 133 const struct mii_phydesc *mpd; 134 135 mpd = mii_phy_match(ma, glxtphys); 136 aprint_naive(": Media interface\n"); 137 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 138 139 sc->mii_inst = mii->mii_instance; 140 sc->mii_phy = ma->mii_phyno; 141 sc->mii_funcs = &glxtphy_funcs; 142 sc->mii_pdata = mii; 143 sc->mii_flags = ma->mii_flags; 144 sc->mii_anegticks = 5; 145 146 PHY_RESET(sc); 147 148 sc->mii_capabilities = 149 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 150 if (sc->mii_capabilities & BMSR_EXTSTAT) 151 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 152 153 aprint_normal("%s: ", sc->mii_dev.dv_xname); 154 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 155 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 156 aprint_error("no media present"); 157 else 158 mii_phy_add_media(sc); 159 aprint_normal("\n"); 160 } 161 162 static int 163 glxtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 164 { 165 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 166 int reg; 167 168 switch (cmd) { 169 case MII_POLLSTAT: 170 /* 171 * If we're not polling our PHY instance, just return. 172 */ 173 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 174 return (0); 175 break; 176 177 case MII_MEDIACHG: 178 /* 179 * If the media indicates a different PHY instance, 180 * isolate ourselves. 181 */ 182 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 183 reg = PHY_READ(sc, MII_BMCR); 184 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 185 return (0); 186 } 187 188 /* 189 * If the interface is not up, don't do anything. 190 */ 191 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 192 break; 193 194 mii_phy_setmedia(sc); 195 break; 196 197 case MII_TICK: 198 /* 199 * If we're not currently selected, just return. 200 */ 201 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 202 return (0); 203 204 if (mii_phy_tick(sc) == EJUSTRETURN) 205 return (0); 206 break; 207 208 case MII_DOWN: 209 mii_phy_down(sc); 210 return (0); 211 } 212 213 /* Update the media status. */ 214 mii_phy_status(sc); 215 216 /* Callback if something changed. */ 217 mii_phy_update(sc, cmd); 218 return (0); 219 } 220 221 static void 222 glxtphy_status(struct mii_softc *sc) 223 { 224 struct mii_data *mii = sc->mii_pdata; 225 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 226 int bmcr, qsr, gtsr; 227 228 mii->mii_media_status = IFM_AVALID; 229 mii->mii_media_active = IFM_ETHER; 230 231 qsr = PHY_READ(sc, MII_GLXTPHY_QSR); 232 233 if (qsr & QSR_LINK) 234 mii->mii_media_status |= IFM_ACTIVE; 235 236 bmcr = PHY_READ(sc, MII_BMCR); 237 if (bmcr & BMCR_ISO) { 238 mii->mii_media_active |= IFM_NONE; 239 mii->mii_media_status = 0; 240 return; 241 } 242 243 if (bmcr & BMCR_LOOP) 244 mii->mii_media_active |= IFM_LOOP; 245 246 if (bmcr & BMCR_AUTOEN) { 247 /* 248 * The media status bits are only valid of autonegotiation 249 * has completed (or it's disabled). 250 */ 251 if ((qsr & QSR_ACOMP) == 0) { 252 /* Erg, still trying, I guess... */ 253 mii->mii_media_active |= IFM_NONE; 254 return; 255 } 256 257 switch (QSR_SPEED_get(qsr)) { 258 case SPEED_1000: 259 mii->mii_media_active |= IFM_1000_T; 260 gtsr = PHY_READ(sc, MII_100T2SR); 261 if (gtsr & GTSR_MS_RES) 262 mii->mii_media_active |= IFM_ETH_MASTER; 263 break; 264 265 case SPEED_100: 266 mii->mii_media_active |= IFM_100_TX; 267 break; 268 269 case SPEED_10_MII: 270 case SPEED_10_SERIAL: 271 mii->mii_media_active |= IFM_10_T; 272 break; 273 } 274 275 if (qsr & QSR_DUPLEX) 276 mii->mii_media_active |= 277 IFM_FDX | mii_phy_flowstatus(sc); 278 } else 279 mii->mii_media_active = ife->ifm_media; 280 } 281
Indexes created Tue Sep 23 23:09:58 GMT 2025