glxtphy.c revision 1.15
1 /* $NetBSD: glxtphy.c,v 1.15 2006/10/12 01:31:25 christos 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 1.15 2006/10/12 01:31:25 christos 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 __unused, struct cfdata *match __unused, 118 void *aux) 119 { 120 struct mii_attach_args *ma = aux; 121 122 if (mii_phy_match(ma, glxtphys) != NULL) 123 return (10); 124 125 return (0); 126 } 127 128 static void 129 glxtphyattach(struct device *parent __unused, struct device *self, void *aux) 130 { 131 struct mii_softc *sc = device_private(self); 132 struct mii_attach_args *ma = aux; 133 struct mii_data *mii = ma->mii_data; 134 const struct mii_phydesc *mpd; 135 136 mpd = mii_phy_match(ma, glxtphys); 137 aprint_naive(": Media interface\n"); 138 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 139 140 sc->mii_inst = mii->mii_instance; 141 sc->mii_phy = ma->mii_phyno; 142 sc->mii_funcs = &glxtphy_funcs; 143 sc->mii_pdata = mii; 144 sc->mii_flags = ma->mii_flags; 145 sc->mii_anegticks = 5; 146 147 PHY_RESET(sc); 148 149 sc->mii_capabilities = 150 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 151 if (sc->mii_capabilities & BMSR_EXTSTAT) 152 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 153 154 aprint_normal("%s: ", sc->mii_dev.dv_xname); 155 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 156 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 157 aprint_error("no media present"); 158 else 159 mii_phy_add_media(sc); 160 aprint_normal("\n"); 161 } 162 163 static int 164 glxtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 165 { 166 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 167 int reg; 168 169 switch (cmd) { 170 case MII_POLLSTAT: 171 /* 172 * If we're not polling our PHY instance, just return. 173 */ 174 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 175 return (0); 176 break; 177 178 case MII_MEDIACHG: 179 /* 180 * If the media indicates a different PHY instance, 181 * isolate ourselves. 182 */ 183 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 184 reg = PHY_READ(sc, MII_BMCR); 185 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 186 return (0); 187 } 188 189 /* 190 * If the interface is not up, don't do anything. 191 */ 192 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 193 break; 194 195 mii_phy_setmedia(sc); 196 break; 197 198 case MII_TICK: 199 /* 200 * If we're not currently selected, just return. 201 */ 202 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 203 return (0); 204 205 if (mii_phy_tick(sc) == EJUSTRETURN) 206 return (0); 207 break; 208 209 case MII_DOWN: 210 mii_phy_down(sc); 211 return (0); 212 } 213 214 /* Update the media status. */ 215 mii_phy_status(sc); 216 217 /* Callback if something changed. */ 218 mii_phy_update(sc, cmd); 219 return (0); 220 } 221 222 static void 223 glxtphy_status(struct mii_softc *sc) 224 { 225 struct mii_data *mii = sc->mii_pdata; 226 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 227 int bmcr, qsr, gtsr; 228 229 mii->mii_media_status = IFM_AVALID; 230 mii->mii_media_active = IFM_ETHER; 231 232 qsr = PHY_READ(sc, MII_GLXTPHY_QSR); 233 234 if (qsr & QSR_LINK) 235 mii->mii_media_status |= IFM_ACTIVE; 236 237 bmcr = PHY_READ(sc, MII_BMCR); 238 if (bmcr & BMCR_ISO) { 239 mii->mii_media_active |= IFM_NONE; 240 mii->mii_media_status = 0; 241 return; 242 } 243 244 if (bmcr & BMCR_LOOP) 245 mii->mii_media_active |= IFM_LOOP; 246 247 if (bmcr & BMCR_AUTOEN) { 248 /* 249 * The media status bits are only valid of autonegotiation 250 * has completed (or it's disabled). 251 */ 252 if ((qsr & QSR_ACOMP) == 0) { 253 /* Erg, still trying, I guess... */ 254 mii->mii_media_active |= IFM_NONE; 255 return; 256 } 257 258 switch (QSR_SPEED_get(qsr)) { 259 case SPEED_1000: 260 mii->mii_media_active |= IFM_1000_T; 261 gtsr = PHY_READ(sc, MII_100T2SR); 262 if (gtsr & GTSR_MS_RES) 263 mii->mii_media_active |= IFM_ETH_MASTER; 264 break; 265 266 case SPEED_100: 267 mii->mii_media_active |= IFM_100_TX; 268 break; 269 270 case SPEED_10_MII: 271 case SPEED_10_SERIAL: 272 mii->mii_media_active |= IFM_10_T; 273 break; 274 } 275 276 if (qsr & QSR_DUPLEX) 277 mii->mii_media_active |= 278 IFM_FDX | mii_phy_flowstatus(sc); 279 } else 280 mii->mii_media_active = ife->ifm_media; 281 } 282
Indexes created Wed Sep 24 05:09:52 GMT 2025