gphyter.c revision 1.5
1 /* $NetBSD: gphyter.c,v 1.5 2001/08/25 18:04:01 thorpej 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 National Semiconductor's DP83891 and DP83861 `Gig PHYTER' 71 * ethernet 10/100/1000 PHYs. The DP83891 is an older, non-firmware- 72 * driven version of the DP83861. 73 * 74 * Data Sheet available from www.national.com 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/kernel.h> 80 #include <sys/device.h> 81 #include <sys/malloc.h> 82 #include <sys/socket.h> 83 #include <sys/errno.h> 84 85 #include <net/if.h> 86 #include <net/if_media.h> 87 88 #include <dev/mii/mii.h> 89 #include <dev/mii/miivar.h> 90 #include <dev/mii/miidevs.h> 91 92 #include <dev/mii/gphyterreg.h> 93 94 int gphytermatch(struct device *, struct cfdata *, void *); 95 void gphyterattach(struct device *, struct device *, void *); 96 97 struct cfattach gphyter_ca = { 98 sizeof(struct mii_softc), gphytermatch, gphyterattach, 99 mii_phy_detach, mii_phy_activate 100 }; 101 102 int gphyter_service(struct mii_softc *, struct mii_data *, int); 103 void gphyter_status(struct mii_softc *); 104 105 const struct mii_phy_funcs gphyter_funcs = { 106 gphyter_service, gphyter_status, mii_phy_reset, 107 }; 108 109 const struct mii_phydesc gphyters[] = { 110 { MII_OUI_xxNATSEMI, MII_MODEL_xxNATSEMI_DP83861, 111 MII_STR_xxNATSEMI_DP83861 }, 112 113 { MII_OUI_xxNATSEMI, MII_MODEL_xxNATSEMI_DP83891, 114 MII_STR_xxNATSEMI_DP83891 }, 115 116 { 0, 0, 117 NULL }, 118 }; 119 120 int 121 gphytermatch(struct device *parent, struct cfdata *match, void *aux) 122 { 123 struct mii_attach_args *ma = aux; 124 125 if (mii_phy_match(ma, gphyters) != NULL) 126 return (10); 127 128 return (0); 129 } 130 131 void 132 gphyterattach(struct device *parent, struct device *self, void *aux) 133 { 134 struct mii_softc *sc = (struct mii_softc *)self; 135 struct mii_attach_args *ma = aux; 136 struct mii_data *mii = ma->mii_data; 137 const struct mii_phydesc *mpd; 138 int anar, strap; 139 140 mpd = mii_phy_match(ma, gphyters); 141 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 142 143 sc->mii_inst = mii->mii_instance; 144 sc->mii_phy = ma->mii_phyno; 145 sc->mii_funcs = &gphyter_funcs; 146 sc->mii_pdata = mii; 147 sc->mii_flags = mii->mii_flags; 148 sc->mii_anegticks = 5; 149 150 PHY_RESET(sc); 151 152 sc->mii_capabilities = 153 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 154 if (sc->mii_capabilities & BMSR_EXTSTAT) 155 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 156 157 /* 158 * The Gig PHYTER seems to have the 10baseT BMSR bits 159 * hard-wired to 0, even though the device supports 160 * 10baseT. What we do instead is read the post-reset 161 * ANAR, who's 10baseT-related bits are set by strapping 162 * pin 180, and fake the BMSR bits. 163 */ 164 anar = PHY_READ(sc, MII_ANAR); 165 if (anar & ANAR_10) 166 sc->mii_capabilities |= (BMSR_10THDX & ma->mii_capmask); 167 if (anar & ANAR_10_FD) 168 sc->mii_capabilities |= (BMSR_10TFDX & ma->mii_capmask); 169 170 printf("%s: ", sc->mii_dev.dv_xname); 171 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 172 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 173 printf("no media present"); 174 else 175 mii_phy_add_media(sc); 176 printf("\n"); 177 178 strap = PHY_READ(sc, MII_GPHYTER_STRAP); 179 printf("%s: strapped to %s mode", sc->mii_dev.dv_xname, 180 (strap & STRAP_MS_VAL) ? "master" : "slave"); 181 if (strap & STRAP_NC_MODE) 182 printf(", pre-C5 BCM5400 compat enabled"); 183 printf("\n"); 184 } 185 186 int 187 gphyter_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 188 { 189 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 190 int reg; 191 192 switch (cmd) { 193 case MII_POLLSTAT: 194 /* 195 * If we're not polling our PHY instance, just return. 196 */ 197 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 198 return (0); 199 break; 200 201 case MII_MEDIACHG: 202 /* 203 * If the media indicates a different PHY instance, 204 * isolate ourselves. 205 */ 206 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 207 reg = PHY_READ(sc, MII_BMCR); 208 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 209 return (0); 210 } 211 212 /* 213 * If the interface is not up, don't do anything. 214 */ 215 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 216 break; 217 218 mii_phy_setmedia(sc); 219 break; 220 221 case MII_TICK: 222 /* 223 * If we're not currently selected, just return. 224 */ 225 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 226 return (0); 227 228 if (mii_phy_tick(sc) == EJUSTRETURN) 229 return (0); 230 break; 231 232 case MII_DOWN: 233 mii_phy_down(sc); 234 return (0); 235 } 236 237 /* Update the media status. */ 238 mii_phy_status(sc); 239 240 /* Callback if something changed. */ 241 mii_phy_update(sc, cmd); 242 return (0); 243 } 244 245 void 246 gphyter_status(struct mii_softc *sc) 247 { 248 struct mii_data *mii = sc->mii_pdata; 249 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 250 int bmsr, bmcr, physup, gtsr; 251 252 mii->mii_media_status = IFM_AVALID; 253 mii->mii_media_active = IFM_ETHER; 254 255 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 256 257 physup = PHY_READ(sc, MII_GPHYTER_PHY_SUP); 258 259 if (physup & PHY_SUP_LINK) 260 mii->mii_media_status |= IFM_ACTIVE; 261 262 bmcr = PHY_READ(sc, MII_BMCR); 263 if (bmcr & BMCR_ISO) { 264 mii->mii_media_active |= IFM_NONE; 265 mii->mii_media_status = 0; 266 return; 267 } 268 269 if (bmcr & BMCR_LOOP) 270 mii->mii_media_active |= IFM_LOOP; 271 272 if (bmcr & BMCR_AUTOEN) { 273 /* 274 * The media status bits are only valid of autonegotiation 275 * has completed (or it's disabled). 276 */ 277 if ((bmsr & BMSR_ACOMP) == 0) { 278 /* Erg, still trying, I guess... */ 279 mii->mii_media_active |= IFM_NONE; 280 return; 281 } 282 283 switch (physup & (PHY_SUP_SPEED1|PHY_SUP_SPEED0)) { 284 case PHY_SUP_SPEED1: 285 mii->mii_media_active |= IFM_1000_T; 286 gtsr = PHY_READ(sc, MII_100T2SR); 287 if (gtsr & GTSR_MS_RES) 288 mii->mii_media_active |= IFM_ETH_MASTER; 289 break; 290 291 case PHY_SUP_SPEED0: 292 mii->mii_media_active |= IFM_100_TX; 293 break; 294 295 case 0: 296 mii->mii_media_active |= IFM_10_T; 297 break; 298 299 default: 300 mii->mii_media_active |= IFM_NONE; 301 mii->mii_media_status = 0; 302 } 303 if (physup & PHY_SUP_DUPLEX) 304 mii->mii_media_active |= IFM_FDX; 305 } else 306 mii->mii_media_active = ife->ifm_media; 307 } 308
Indexes created Fri Sep 26 20:09:58 GMT 2025