dmphy.c revision 1.7
1 /* $NetBSD: dmphy.c,v 1.7 2000/04/02 03:06:19 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2000 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 Davicom's DM9101 ethernet 10/100 PHY 71 * Data Sheet available from www.davicom8.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 #include <sys/errno.h> 81 82 #include <net/if.h> 83 #include <net/if_media.h> 84 85 #include <dev/mii/mii.h> 86 #include <dev/mii/miivar.h> 87 #include <dev/mii/miidevs.h> 88 89 #include <dev/mii/dmphyreg.h> 90 91 int dmphymatch __P((struct device *, struct cfdata *, void *)); 92 void dmphyattach __P((struct device *, struct device *, void *)); 93 94 struct cfattach dmphy_ca = { 95 sizeof(struct mii_softc), dmphymatch, dmphyattach, mii_phy_detach, 96 mii_phy_activate 97 }; 98 99 int dmphy_service __P((struct mii_softc *, struct mii_data *, int)); 100 void dmphy_status __P((struct mii_softc *)); 101 102 int 103 dmphymatch(parent, match, aux) 104 struct device *parent; 105 struct cfdata *match; 106 void *aux; 107 { 108 struct mii_attach_args *ma = aux; 109 110 if ((MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxDAVICOM || 111 MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_DAVICOM) && 112 (MII_MODEL(ma->mii_id2) == MII_MODEL_xxDAVICOM_DM9101)) 113 return (10); 114 115 return (0); 116 } 117 118 void 119 dmphyattach(parent, self, aux) 120 struct device *parent, *self; 121 void *aux; 122 { 123 struct mii_softc *sc = (struct mii_softc *)self; 124 struct mii_attach_args *ma = aux; 125 struct mii_data *mii = ma->mii_data; 126 127 printf(": %s, rev. %d\n", MII_STR_xxDAVICOM_DM9101, 128 MII_REV(ma->mii_id2)); 129 130 sc->mii_inst = mii->mii_instance; 131 sc->mii_phy = ma->mii_phyno; 132 sc->mii_service = dmphy_service; 133 sc->mii_status = dmphy_status; 134 sc->mii_pdata = mii; 135 sc->mii_flags = mii->mii_flags; 136 137 mii_phy_reset(sc); 138 139 sc->mii_capabilities = 140 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 141 printf("%s: ", sc->mii_dev.dv_xname); 142 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 143 printf("no media present"); 144 else 145 mii_phy_add_media(sc); 146 printf("\n"); 147 } 148 149 int 150 dmphy_service(sc, mii, cmd) 151 struct mii_softc *sc; 152 struct mii_data *mii; 153 int cmd; 154 { 155 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 156 int reg; 157 158 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 159 return (ENXIO); 160 161 switch (cmd) { 162 case MII_POLLSTAT: 163 /* 164 * If we're not polling our PHY instance, just return. 165 */ 166 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 167 return (0); 168 break; 169 170 case MII_MEDIACHG: 171 /* 172 * If the media indicates a different PHY instance, 173 * isolate ourselves. 174 */ 175 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 176 reg = PHY_READ(sc, MII_BMCR); 177 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 178 return (0); 179 } 180 181 /* 182 * If the interface is not up, don't do anything. 183 */ 184 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 185 break; 186 187 mii_phy_setmedia(sc); 188 break; 189 190 case MII_TICK: 191 /* 192 * If we're not currently selected, just return. 193 */ 194 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 195 return (0); 196 197 if (mii_phy_tick(sc) == EJUSTRETURN) 198 return (0); 199 break; 200 201 case MII_DOWN: 202 mii_phy_down(sc); 203 return (0); 204 } 205 206 /* Update the media status. */ 207 mii_phy_status(sc); 208 209 /* Callback if something changed. */ 210 mii_phy_update(sc, cmd); 211 return (0); 212 } 213 214 void 215 dmphy_status(sc) 216 struct mii_softc *sc; 217 { 218 struct mii_data *mii = sc->mii_pdata; 219 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 220 int bmsr, bmcr, dscsr; 221 222 mii->mii_media_status = IFM_AVALID; 223 mii->mii_media_active = IFM_ETHER; 224 225 bmsr = PHY_READ(sc, MII_BMSR) | 226 PHY_READ(sc, MII_BMSR); 227 if (bmsr & BMSR_LINK) 228 mii->mii_media_status |= IFM_ACTIVE; 229 230 bmcr = PHY_READ(sc, MII_BMCR); 231 if (bmcr & BMCR_ISO) { 232 mii->mii_media_active |= IFM_NONE; 233 mii->mii_media_status = 0; 234 return; 235 } 236 237 if (bmcr & BMCR_LOOP) 238 mii->mii_media_active |= IFM_LOOP; 239 240 if (bmcr & BMCR_AUTOEN) { 241 /* 242 * The PAR status bits are only valid of autonegotiation 243 * has completed (or it's disabled). 244 */ 245 if ((bmsr & BMSR_ACOMP) == 0) { 246 /* Erg, still trying, I guess... */ 247 mii->mii_media_active |= IFM_NONE; 248 return; 249 } 250 251 dscsr = PHY_READ(sc, MII_DMPHY_DSCSR); 252 if (dscsr & DSCSR_100FDX) 253 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 254 else if (dscsr & DSCSR_100HDX) 255 mii->mii_media_active |= IFM_100_TX; 256 else if (dscsr & DSCSR_10FDX) 257 mii->mii_media_active |= IFM_10_T|IFM_FDX; 258 else if (dscsr & DSCSR_10HDX) 259 mii->mii_media_active |= IFM_10_T; 260 else 261 mii->mii_media_active |= IFM_NONE; 262 } else 263 mii->mii_media_active = ife->ifm_media; 264 } 265
Indexes created Wed Sep 24 02:09:48 GMT 2025