gphyter.c revision 1.2
1 /* $NetBSD: gphyter.c,v 1.2 2001/05/31 18:47:22 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 __P((struct device *, struct cfdata *, void *)); 95 void gphyterattach __P((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 __P((struct mii_softc *, struct mii_data *, int)); 103 void gphyter_status __P((struct mii_softc *)); 104 105 const struct mii_phy_funcs gphyter_funcs = { 106 gphyter_service, gphyter_status, mii_phy_reset, 107 }; 108 109 int 110 gphytermatch(parent, match, aux) 111 struct device *parent; 112 struct cfdata *match; 113 void *aux; 114 { 115 struct mii_attach_args *ma = aux; 116 117 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxNATSEMI && 118 MII_MODEL(ma->mii_id2) == MII_MODEL_xxNATSEMI_DP83861) 119 return (10); 120 121 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxNATSEMI && 122 MII_MODEL(ma->mii_id2) == MII_MODEL_xxNATSEMI_DP83891) 123 return (10); 124 125 return (0); 126 } 127 128 void 129 gphyterattach(parent, self, aux) 130 struct device *parent, *self; 131 void *aux; 132 { 133 struct mii_softc *sc = (struct mii_softc *)self; 134 struct mii_attach_args *ma = aux; 135 struct mii_data *mii = ma->mii_data; 136 const char *model; 137 int anar, strap; 138 139 switch (MII_MODEL(ma->mii_id2)) { 140 case MII_MODEL_xxNATSEMI_DP83861: 141 model = MII_STR_xxNATSEMI_DP83861; 142 break; 143 case MII_MODEL_xxNATSEMI_DP83891: 144 model = MII_STR_xxNATSEMI_DP83891; 145 break; 146 default: 147 printf("\n"); 148 panic("gphyterattach: impossible"); 149 } 150 151 printf(": %s, rev. %d\n", model, MII_REV(ma->mii_id2)); 152 153 sc->mii_inst = mii->mii_instance; 154 sc->mii_phy = ma->mii_phyno; 155 sc->mii_funcs = &gphyter_funcs; 156 sc->mii_pdata = mii; 157 sc->mii_flags = mii->mii_flags; 158 sc->mii_anegticks = 5; 159 160 PHY_RESET(sc); 161 162 sc->mii_capabilities = 163 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 164 if (sc->mii_capabilities & BMSR_EXTSTAT) 165 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 166 167 /* 168 * The Gig PHYTER seems to have the 10baseT BMSR bits 169 * hard-wired to 0, even though the device supports 170 * 10baseT. What we do instead is read the post-reset 171 * ANAR, who's 10baseT-related bits are set by strapping 172 * pin 180, and fake the BMSR bits. 173 */ 174 anar = PHY_READ(sc, MII_ANAR); 175 if (anar & ANAR_10) 176 sc->mii_capabilities |= (BMSR_10THDX & ma->mii_capmask); 177 if (anar & ANAR_10_FD) 178 sc->mii_capabilities |= (BMSR_10TFDX & ma->mii_capmask); 179 180 printf("%s: ", sc->mii_dev.dv_xname); 181 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 182 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 183 printf("no media present"); 184 else 185 mii_phy_add_media(sc); 186 printf("\n"); 187 188 strap = PHY_READ(sc, MII_GPHYTER_STRAP); 189 printf("%s: strapped to %s mode", sc->mii_dev.dv_xname, 190 (strap & STRAP_MS_VAL) ? "master" : "slave"); 191 if (strap & STRAP_NC_MODE) 192 printf(", pre-C5 BCM5400 compat enabled"); 193 printf("\n"); 194 } 195 196 int 197 gphyter_service(sc, mii, cmd) 198 struct mii_softc *sc; 199 struct mii_data *mii; 200 int cmd; 201 { 202 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 203 int reg; 204 205 switch (cmd) { 206 case MII_POLLSTAT: 207 /* 208 * If we're not polling our PHY instance, just return. 209 */ 210 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 211 return (0); 212 break; 213 214 case MII_MEDIACHG: 215 /* 216 * If the media indicates a different PHY instance, 217 * isolate ourselves. 218 */ 219 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 220 reg = PHY_READ(sc, MII_BMCR); 221 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 222 return (0); 223 } 224 225 /* 226 * If the interface is not up, don't do anything. 227 */ 228 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 229 break; 230 231 mii_phy_setmedia(sc); 232 break; 233 234 case MII_TICK: 235 /* 236 * If we're not currently selected, just return. 237 */ 238 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 239 return (0); 240 241 if (mii_phy_tick(sc) == EJUSTRETURN) 242 return (0); 243 break; 244 245 case MII_DOWN: 246 mii_phy_down(sc); 247 return (0); 248 } 249 250 /* Update the media status. */ 251 mii_phy_status(sc); 252 253 /* Callback if something changed. */ 254 mii_phy_update(sc, cmd); 255 return (0); 256 } 257 258 void 259 gphyter_status(sc) 260 struct mii_softc *sc; 261 { 262 struct mii_data *mii = sc->mii_pdata; 263 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 264 int bmsr, bmcr, physup, gtsr; 265 266 mii->mii_media_status = IFM_AVALID; 267 mii->mii_media_active = IFM_ETHER; 268 269 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 270 271 physup = PHY_READ(sc, MII_GPHYTER_PHY_SUP); 272 273 if (physup & PHY_SUP_LINK) 274 mii->mii_media_status |= IFM_ACTIVE; 275 276 bmcr = PHY_READ(sc, MII_BMCR); 277 if (bmcr & BMCR_ISO) { 278 mii->mii_media_active |= IFM_NONE; 279 mii->mii_media_status = 0; 280 return; 281 } 282 283 if (bmcr & BMCR_LOOP) 284 mii->mii_media_active |= IFM_LOOP; 285 286 if (bmcr & BMCR_AUTOEN) { 287 /* 288 * The media status bits are only valid of autonegotiation 289 * has completed (or it's disabled). 290 */ 291 if ((bmsr & BMSR_ACOMP) == 0) { 292 /* Erg, still trying, I guess... */ 293 mii->mii_media_active |= IFM_NONE; 294 return; 295 } 296 297 switch (physup & (PHY_SUP_SPEED1|PHY_SUP_SPEED0)) { 298 case PHY_SUP_SPEED1: 299 mii->mii_media_active |= IFM_1000_TX; 300 gtsr = PHY_READ(sc, MII_100T2SR); 301 if (gtsr & GTSR_MS_RES) 302 mii->mii_media_active |= IFM_ETH_MASTER; 303 break; 304 305 case PHY_SUP_SPEED0: 306 mii->mii_media_active |= IFM_100_TX; 307 break; 308 309 case 0: 310 mii->mii_media_active |= IFM_10_T; 311 break; 312 313 default: 314 mii->mii_media_active |= IFM_NONE; 315 mii->mii_media_status = 0; 316 } 317 if (physup & PHY_SUP_DUPLEX) 318 mii->mii_media_active |= IFM_FDX; 319 } else 320 mii->mii_media_active = ife->ifm_media; 321 } 322
Indexes created Sun Oct 26 13:09:57 GMT 2025