bmtphy.c revision 1.2
1 /* $NetBSD: bmtphy.c,v 1.2 2001/06/08 07:09:40 enami 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 Broadcom BCM5201/BCM5202 "Mini-Theta" PHYs. This also 71 * drives the PHY on the 3Com 3c905C. The 3c905C's PHY is described in 72 * the 3c905C data sheet. 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/bmtphyreg.h> 91 92 int bmtphymatch __P((struct device *, struct cfdata *, void *)); 93 void bmtphyattach __P((struct device *, struct device *, void *)); 94 95 struct cfattach bmtphy_ca = { 96 sizeof(struct mii_softc), bmtphymatch, bmtphyattach, 97 mii_phy_detach, mii_phy_activate 98 }; 99 100 int bmtphy_service __P((struct mii_softc *, struct mii_data *, int)); 101 void bmtphy_status __P((struct mii_softc *)); 102 103 const struct mii_phy_funcs bmtphy_funcs = { 104 bmtphy_service, bmtphy_status, mii_phy_reset, 105 }; 106 107 const struct mii_phydesc bmtphys[] = { 108 { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_3C905C, 109 MII_STR_xxBROADCOM_3C905C }, 110 { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5201, 111 MII_STR_xxBROADCOM_BCM5201 }, 112 113 { 0, 0, 114 NULL }, 115 }; 116 117 int 118 bmtphymatch(parent, match, aux) 119 struct device *parent; 120 struct cfdata *match; 121 void *aux; 122 { 123 struct mii_attach_args *ma = aux; 124 125 if (mii_phy_match(ma, bmtphys) != NULL) 126 return (10); 127 128 return (0); 129 } 130 131 void 132 bmtphyattach(parent, self, aux) 133 struct device *parent, *self; 134 void *aux; 135 { 136 struct mii_softc *sc = (struct mii_softc *)self; 137 struct mii_attach_args *ma = aux; 138 struct mii_data *mii = ma->mii_data; 139 const struct mii_phydesc *mpd; 140 141 mpd = mii_phy_match(ma, bmtphys); 142 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 143 144 sc->mii_inst = mii->mii_instance; 145 sc->mii_phy = ma->mii_phyno; 146 sc->mii_funcs = &bmtphy_funcs; 147 sc->mii_pdata = mii; 148 sc->mii_flags = mii->mii_flags; 149 sc->mii_anegticks = 5; 150 151 PHY_RESET(sc); 152 153 /* 154 * XXX Check AUX_STS_FX_MODE to set MIIF_HAVE_FIBER? 155 */ 156 157 sc->mii_capabilities = 158 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 159 printf("%s: ", sc->mii_dev.dv_xname); 160 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 161 printf("no media present"); 162 else 163 mii_phy_add_media(sc); 164 printf("\n"); 165 } 166 167 int 168 bmtphy_service(sc, mii, cmd) 169 struct mii_softc *sc; 170 struct mii_data *mii; 171 int cmd; 172 { 173 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 174 int reg; 175 176 switch (cmd) { 177 case MII_POLLSTAT: 178 /* 179 * If we're not polling our PHY instance, just return. 180 */ 181 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 182 return (0); 183 break; 184 185 case MII_MEDIACHG: 186 /* 187 * If the media indicates a different PHY instance, 188 * isolate ourselves. 189 */ 190 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 191 reg = PHY_READ(sc, MII_BMCR); 192 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 193 return (0); 194 } 195 196 /* 197 * If the interface is not up, don't do anything. 198 */ 199 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 200 break; 201 202 mii_phy_setmedia(sc); 203 break; 204 205 case MII_TICK: 206 /* 207 * If we're not currently selected, just return. 208 */ 209 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 210 return (0); 211 212 if (mii_phy_tick(sc) == EJUSTRETURN) 213 return (0); 214 break; 215 216 case MII_DOWN: 217 mii_phy_down(sc); 218 return (0); 219 } 220 221 /* Update the media status. */ 222 mii_phy_status(sc); 223 224 /* Callback if something changed. */ 225 mii_phy_update(sc, cmd); 226 return (0); 227 } 228 229 void 230 bmtphy_status(sc) 231 struct mii_softc *sc; 232 { 233 struct mii_data *mii = sc->mii_pdata; 234 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 235 int bmsr, bmcr, aux_csr; 236 237 mii->mii_media_status = IFM_AVALID; 238 mii->mii_media_active = IFM_ETHER; 239 240 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 241 aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR); 242 243 if (bmsr & BMSR_LINK) 244 mii->mii_media_status |= IFM_ACTIVE; 245 246 bmcr = PHY_READ(sc, MII_BMCR); 247 if (bmcr & BMCR_ISO) { 248 mii->mii_media_active |= IFM_NONE; 249 mii->mii_media_status = 0; 250 return; 251 } 252 253 if (bmcr & BMCR_LOOP) 254 mii->mii_media_active |= IFM_LOOP; 255 256 if (bmcr & BMCR_AUTOEN) { 257 /* 258 * The media status bits are only valid of autonegotiation 259 * has completed (or it's disabled). 260 */ 261 if ((bmsr & BMSR_ACOMP) == 0) { 262 /* Erg, still trying, I guess... */ 263 mii->mii_media_active |= IFM_NONE; 264 return; 265 } 266 267 if (aux_csr & AUX_CSR_SPEED) 268 mii->mii_media_active |= IFM_100_TX; 269 else 270 mii->mii_media_active |= IFM_10_T; 271 if (aux_csr & AUX_CSR_FDX) 272 mii->mii_media_active |= IFM_FDX; 273 } else 274 mii->mii_media_active = ife->ifm_media; 275 } 276
Indexes created Tue Sep 23 07:09:52 GMT 2025