1 /* $OpenBSD: nsphyter.c,v 1.5 2002/03/14 01:26:58 millert Exp $ */ 2 /* $NetBSD: nsphyter.c,v 1.5 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 National Semiconductor's DP83843 `PHYTER' ethernet 10/100 PHY 72 * Data Sheet available from www.national.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/nsphyterreg.h> 91 92 int nsphytermatch(struct device *, void *, void *); 93 void nsphyterattach(struct device *, struct device *, void *); 94 95 struct cfattach nsphyter_ca = { 96 sizeof(struct mii_softc), nsphytermatch, nsphyterattach, 97 mii_phy_detach, mii_phy_activate 98 }; 99 100 struct cfdriver nsphyter_cd = { 101 NULL, "nsphyter", DV_DULL 102 }; 103 104 int nsphyter_service(struct mii_softc *, struct mii_data *, int); 105 void nsphyter_status(struct mii_softc *); 106 107 int 108 nsphytermatch(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_NATSEMI) { 116 switch (MII_MODEL(ma->mii_id2)) { 117 case MII_MODEL_NATSEMI_DP83843: 118 case MII_MODEL_NATSEMI_DP83815: 119 return (10); 120 } 121 } 122 123 return (0); 124 } 125 126 void 127 nsphyterattach(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_MODEL(ma->mii_id2) == MII_MODEL_NATSEMI_DP83815) 136 printf(": %s", MII_STR_NATSEMI_DP83815); 137 else 138 printf(": %s", MII_STR_NATSEMI_DP83843); 139 printf(", rev. %d\n", MII_REV(ma->mii_id2)); 140 141 sc->mii_inst = mii->mii_instance; 142 sc->mii_phy = ma->mii_phyno; 143 sc->mii_service = nsphyter_service; 144 sc->mii_status = nsphyter_status; 145 sc->mii_pdata = mii; 146 sc->mii_flags = mii->mii_flags; 147 148 mii_phy_reset(sc); 149 150 sc->mii_capabilities = 151 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 152 if (sc->mii_capabilities & BMSR_MEDIAMASK) 153 mii_phy_add_media(sc); 154 } 155 156 int 157 nsphyter_service(sc, mii, cmd) 158 struct mii_softc *sc; 159 struct mii_data *mii; 160 int cmd; 161 { 162 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 163 int reg; 164 165 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 166 return (ENXIO); 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 void 222 nsphyter_status(sc) 223 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 bmsr, bmcr, physts; 228 229 mii->mii_media_status = IFM_AVALID; 230 mii->mii_media_active = IFM_ETHER; 231 232 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 233 physts = PHY_READ(sc, MII_NSPHYTER_PHYSTS); 234 235 if (physts & PHYSTS_LINK) 236 mii->mii_media_status |= IFM_ACTIVE; 237 238 bmcr = PHY_READ(sc, MII_BMCR); 239 if (bmcr & BMCR_ISO) { 240 mii->mii_media_active |= IFM_NONE; 241 mii->mii_media_status = 0; 242 return; 243 } 244 245 if (bmcr & BMCR_LOOP) 246 mii->mii_media_active |= IFM_LOOP; 247 248 if (bmcr & BMCR_AUTOEN) { 249 /* 250 * The media status bits are only valid of autonegotiation 251 * has completed (or it's disabled). 252 */ 253 if ((bmsr & BMSR_ACOMP) == 0) { 254 /* Erg, still trying, I guess... */ 255 mii->mii_media_active |= IFM_NONE; 256 return; 257 } 258 259 if (physts & PHYSTS_SPEED10) 260 mii->mii_media_active |= IFM_10_T; 261 else 262 mii->mii_media_active |= IFM_100_TX; 263 if (physts & PHYSTS_DUPLEX) 264 mii->mii_media_active |= IFM_FDX; 265 } else 266 mii->mii_media_active = ife->ifm_media; 267 } 268