1 /* $OpenBSD: sqphy.c,v 1.6 2001/05/30 21:41:14 deraadt Exp $ */ 2 /* $NetBSD: sqphy.c,v 1.17 2000/02/02 23:34:57 thorpej Exp $ */ 3 4 /*- 5 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10 * NASA Ames Research Center. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 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 Seeq 80220/80221 and 80223 10/100 ethernet PHYs 72 * datasheet from www.seeq.com 73 */ 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/kernel.h> 78 #include <sys/device.h> 79 #include <sys/malloc.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/sqphyreg.h> 91 92 int sqphymatch __P((struct device *, void *, void *)); 93 void sqphyattach __P((struct device *, struct device *, void *)); 94 95 struct cfattach sqphy_ca = { 96 sizeof(struct mii_softc), sqphymatch, sqphyattach, mii_phy_detach, 97 mii_phy_activate 98 }; 99 100 struct cfdriver sqphy_cd = { 101 NULL, "sqphy", DV_DULL 102 }; 103 104 int sqphy_service __P((struct mii_softc *, struct mii_data *, int)); 105 void sqphy_status __P((struct mii_softc *)); 106 107 int 108 sqphymatch(parent, match, aux) 109 struct device *parent; 110 void *match; 111 void *aux; 112 { 113 struct mii_attach_args *ma = aux; 114 115 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxSEEQ && 116 MII_MODEL(ma->mii_id2) == MII_MODEL_xxSEEQ_80220) 117 return (10); 118 119 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxSEEQ && 120 MII_MODEL(ma->mii_id2) == MII_MODEL_xxSEEQ_84220) 121 return (10); 122 123 return (0); 124 } 125 126 void 127 sqphyattach(parent, self, aux) 128 struct device *parent, *self; 129 void *aux; 130 { 131 struct mii_softc *sc = (struct mii_softc *)self; 132 struct mii_attach_args *ma = aux; 133 struct mii_data *mii = ma->mii_data; 134 135 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxSEEQ && 136 MII_MODEL(ma->mii_id2) == MII_MODEL_xxSEEQ_80220) 137 printf(": %s, rev. %d\n", MII_STR_xxSEEQ_80220, 138 MII_REV(ma->mii_id2)); 139 140 141 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxSEEQ && 142 MII_MODEL(ma->mii_id2) == MII_MODEL_xxSEEQ_84220) 143 printf(": %s, rev. %d\n", MII_STR_xxSEEQ_84220, 144 MII_REV(ma->mii_id2)); 145 146 147 sc->mii_inst = mii->mii_instance; 148 sc->mii_phy = ma->mii_phyno; 149 sc->mii_service = sqphy_service; 150 sc->mii_status = sqphy_status; 151 sc->mii_pdata = mii; 152 sc->mii_flags = mii->mii_flags; 153 154 mii_phy_reset(sc); 155 156 sc->mii_capabilities = 157 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 158 if (sc->mii_capabilities & BMSR_MEDIAMASK) 159 mii_phy_add_media(sc); 160 } 161 162 int 163 sqphy_service(sc, mii, cmd) 164 struct mii_softc *sc; 165 struct mii_data *mii; 166 int cmd; 167 { 168 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 169 int reg; 170 171 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 172 return (ENXIO); 173 174 switch (cmd) { 175 case MII_POLLSTAT: 176 /* 177 * If we're not polling our PHY instance, just return. 178 */ 179 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 180 return (0); 181 break; 182 183 case MII_MEDIACHG: 184 /* 185 * If the media indicates a different PHY instance, 186 * isolate ourselves. 187 */ 188 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 189 reg = PHY_READ(sc, MII_BMCR); 190 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 191 return (0); 192 } 193 194 /* 195 * If the interface is not up, don't do anything. 196 */ 197 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 198 break; 199 200 mii_phy_setmedia(sc); 201 break; 202 203 case MII_TICK: 204 /* 205 * If we're not currently selected, just return. 206 */ 207 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 208 return (0); 209 210 if (mii_phy_tick(sc) == EJUSTRETURN) 211 return (0); 212 break; 213 214 case MII_DOWN: 215 mii_phy_down(sc); 216 return (0); 217 } 218 219 /* Update the media status. */ 220 mii_phy_status(sc); 221 222 /* Callback if something changed. */ 223 mii_phy_update(sc, cmd); 224 return (0); 225 } 226 227 void 228 sqphy_status(sc) 229 struct mii_softc *sc; 230 { 231 struct mii_data *mii = sc->mii_pdata; 232 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 233 int bmsr, bmcr, status; 234 235 mii->mii_media_status = IFM_AVALID; 236 mii->mii_media_active = IFM_ETHER; 237 238 bmsr = PHY_READ(sc, MII_BMSR) | 239 PHY_READ(sc, MII_BMSR); 240 if (bmsr & BMSR_LINK) 241 mii->mii_media_status |= IFM_ACTIVE; 242 243 bmcr = PHY_READ(sc, MII_BMCR); 244 if (bmcr & BMCR_ISO) { 245 mii->mii_media_active |= IFM_NONE; 246 mii->mii_media_status = 0; 247 return; 248 } 249 250 if (bmcr & BMCR_LOOP) 251 mii->mii_media_active |= IFM_LOOP; 252 253 if (bmcr & BMCR_AUTOEN) { 254 if ((bmsr & BMSR_ACOMP) == 0) { 255 /* Erg, still trying, I guess... */ 256 mii->mii_media_active |= IFM_NONE; 257 return; 258 } 259 status = PHY_READ(sc, MII_SQPHY_STATUS); 260 if (status & STATUS_SPD_DET) 261 mii->mii_media_active |= IFM_100_TX; 262 else 263 mii->mii_media_active |= IFM_10_T; 264 if (status & STATUS_DPLX_DET) 265 mii->mii_media_active |= IFM_FDX; 266 } else 267 mii->mii_media_active = ife->ifm_media; 268 } 269