sqphy.c revision 1.5
1 /* $NetBSD: sqphy.c,v 1.5 1998/11/04 23:44:09 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 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 Seeq 80220/80221 and 80223 10/100 ethernet PHYs 71 * datasheet from www.seeq.com 72 */ 73 74 #include <sys/param.h> 75 #include <sys/systm.h> 76 #include <sys/kernel.h> 77 #include <sys/device.h> 78 #include <sys/malloc.h> 79 #include <sys/socket.h> 80 81 #include <net/if.h> 82 #include <net/if_media.h> 83 84 #include <dev/mii/mii.h> 85 #include <dev/mii/miivar.h> 86 #include <dev/mii/miidevs.h> 87 88 #include <dev/mii/sqphyreg.h> 89 90 struct sqphy_softc { 91 struct mii_softc sc_mii; /* generic PHY */ 92 int sc_ticks; 93 int sc_active; 94 }; 95 96 int sqphymatch __P((struct device *, struct cfdata *, void *)); 97 void sqphyattach __P((struct device *, struct device *, void *)); 98 99 struct cfattach sqphy_ca = { 100 sizeof(struct sqphy_softc), sqphymatch, sqphyattach 101 }; 102 103 int sqphy_service __P((struct mii_softc *, struct mii_data *, int)); 104 void sqphy_status __P((struct sqphy_softc *)); 105 106 int 107 sqphymatch(parent, match, aux) 108 struct device *parent; 109 struct cfdata *match; 110 void *aux; 111 { 112 struct mii_attach_args *ma = aux; 113 114 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_SEEQ && 115 MII_MODEL(ma->mii_id2) == MII_MODEL_SEEQ_80220) 116 return (10); 117 118 return (0); 119 } 120 121 void 122 sqphyattach(parent, self, aux) 123 struct device *parent, *self; 124 void *aux; 125 { 126 struct sqphy_softc *sc = (struct sqphy_softc *)self; 127 struct mii_attach_args *ma = aux; 128 struct mii_data *mii = ma->mii_data; 129 130 printf(": %s, rev. %d\n", MII_STR_SEEQ_80220, 131 MII_REV(ma->mii_id2)); 132 133 sc->sc_mii.mii_inst = mii->mii_instance; 134 sc->sc_mii.mii_phy = ma->mii_phyno; 135 sc->sc_mii.mii_service = sqphy_service; 136 sc->sc_mii.mii_pdata = mii; 137 138 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 139 140 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->sc_mii.mii_inst), 141 BMCR_ISO); 142 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->sc_mii.mii_inst), 143 BMCR_LOOP|BMCR_S100); 144 145 mii_phy_reset(&sc->sc_mii); 146 147 sc->sc_mii.mii_capabilities = 148 PHY_READ(&sc->sc_mii, MII_BMSR) & ma->mii_capmask; 149 printf("%s: ", sc->sc_mii.mii_dev.dv_xname); 150 if ((sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) == 0) 151 printf("no media present"); 152 else 153 mii_add_media(mii, sc->sc_mii.mii_capabilities, 154 sc->sc_mii.mii_inst); 155 printf("\n"); 156 #undef ADD 157 } 158 159 int 160 sqphy_service(self, mii, cmd) 161 struct mii_softc *self; 162 struct mii_data *mii; 163 int cmd; 164 { 165 struct sqphy_softc *sc = (struct sqphy_softc *)self; 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->sc_mii.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->sc_mii.mii_inst) { 184 reg = PHY_READ(&sc->sc_mii, MII_BMCR); 185 PHY_WRITE(&sc->sc_mii, 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 switch (IFM_SUBTYPE(ife->ifm_media)) { 196 case IFM_AUTO: 197 /* 198 * If we're already in auto mode, just return. 199 */ 200 if (PHY_READ(&sc->sc_mii, MII_BMCR) & BMCR_AUTOEN) 201 return (0); 202 (void) mii_phy_auto(&sc->sc_mii); 203 break; 204 case IFM_100_T4: 205 /* 206 * XXX Not supported as a manual setting right now. 207 */ 208 return (EINVAL); 209 default: 210 /* 211 * BMCR data is stored in the ifmedia entry. 212 */ 213 PHY_WRITE(&sc->sc_mii, MII_ANAR, 214 mii_anar(ife->ifm_media)); 215 PHY_WRITE(&sc->sc_mii, MII_BMCR, ife->ifm_data); 216 } 217 break; 218 219 case MII_TICK: 220 /* 221 * If we're not currently selected, just return. 222 */ 223 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) 224 return (0); 225 226 /* 227 * Only used for autonegotiation. 228 */ 229 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 230 return (0); 231 232 /* 233 * Is the interface even up? 234 */ 235 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 236 return (0); 237 238 /* 239 * Check to see if we have link. If we do, we don't 240 * need to restart the autonegotiation process. Read 241 * the BMSR twice in case it's latched. 242 */ 243 reg = PHY_READ(&sc->sc_mii, MII_BMSR) | 244 PHY_READ(&sc->sc_mii, MII_BMSR); 245 if (reg & BMSR_LINK) 246 return (0); 247 248 /* 249 * Only retry autonegotiation every 5 seconds. 250 */ 251 if (++sc->sc_ticks != 5) 252 return (0); 253 254 sc->sc_ticks = 0; 255 mii_phy_reset(&sc->sc_mii); 256 (void) mii_phy_auto(&sc->sc_mii); 257 break; 258 } 259 260 /* Update the media status. */ 261 sqphy_status(sc); 262 263 /* Callback if something changed. */ 264 if (sc->sc_active != mii->mii_media_active || cmd == MII_MEDIACHG) { 265 (*mii->mii_statchg)(sc->sc_mii.mii_dev.dv_parent); 266 sc->sc_active = mii->mii_media_active; 267 } 268 return (0); 269 } 270 271 void 272 sqphy_status(sc) 273 struct sqphy_softc *sc; 274 { 275 struct mii_data *mii = sc->sc_mii.mii_pdata; 276 int bmsr, bmcr, status; 277 278 mii->mii_media_status = IFM_AVALID; 279 mii->mii_media_active = IFM_ETHER; 280 281 bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) | 282 PHY_READ(&sc->sc_mii, MII_BMSR); 283 if (bmsr & BMSR_LINK) 284 mii->mii_media_status |= IFM_ACTIVE; 285 286 bmcr = PHY_READ(&sc->sc_mii, MII_BMCR); 287 if (bmcr & BMCR_ISO) { 288 mii->mii_media_active |= IFM_NONE; 289 mii->mii_media_status = 0; 290 return; 291 } 292 293 if (bmcr & BMCR_LOOP) 294 mii->mii_media_active |= IFM_LOOP; 295 296 if ((bmcr & BMCR_AUTOEN) && (bmsr & BMSR_ACOMP) == 0) { 297 /* Erg, still trying, I guess... */ 298 mii->mii_media_active |= IFM_NONE; 299 return; 300 } 301 302 status = PHY_READ(&sc->sc_mii, MII_SQPHY_STATUS); 303 if (status & STATUS_SPD_DET) 304 mii->mii_media_active |= IFM_100_TX; 305 else 306 mii->mii_media_active |= IFM_10_T; 307 if (status & STATUS_DPLX_DET) 308 mii->mii_media_active |= IFM_FDX; 309 } 310
Indexes created Wed Sep 24 15:09:51 GMT 2025