brgphy.c revision 1.8
1 /* $NetBSD: brgphy.c,v 1.8 2002/07/03 06:25:50 simonb 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 BCM5400 Gig-E PHY. 71 * 72 * Programming information for this PHY was gleaned from FreeBSD 73 * (they were apparently able to get a datasheet from Broadcom). 74 */ 75 76 #include <sys/cdefs.h> 77 __KERNEL_RCSID(0, "$NetBSD: brgphy.c,v 1.8 2002/07/03 06:25:50 simonb Exp $"); 78 79 #include <sys/param.h> 80 #include <sys/systm.h> 81 #include <sys/kernel.h> 82 #include <sys/device.h> 83 #include <sys/socket.h> 84 #include <sys/errno.h> 85 86 #include <net/if.h> 87 #include <net/if_media.h> 88 89 #include <dev/mii/mii.h> 90 #include <dev/mii/miivar.h> 91 #include <dev/mii/miidevs.h> 92 93 #include <dev/mii/brgphyreg.h> 94 95 int brgphymatch(struct device *, struct cfdata *, void *); 96 void brgphyattach(struct device *, struct device *, void *); 97 98 struct cfattach brgphy_ca = { 99 sizeof(struct mii_softc), brgphymatch, brgphyattach, 100 mii_phy_detach, mii_phy_activate 101 }; 102 103 int brgphy_service(struct mii_softc *, struct mii_data *, int); 104 void brgphy_status(struct mii_softc *); 105 106 const struct mii_phy_funcs brgphy_funcs = { 107 brgphy_service, brgphy_status, mii_phy_reset, 108 }; 109 110 const struct mii_phydesc brgphys[] = { 111 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 112 MII_STR_BROADCOM_BCM5400 }, 113 114 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 115 MII_STR_BROADCOM_BCM5401 }, 116 117 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 118 MII_STR_BROADCOM_BCM5411 }, 119 120 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 121 MII_STR_BROADCOM_BCM5701 }, 122 123 { 0, 0, 124 NULL }, 125 }; 126 127 int 128 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 129 { 130 struct mii_attach_args *ma = aux; 131 132 if (mii_phy_match(ma, brgphys) != NULL) 133 return (10); 134 135 return (0); 136 } 137 138 void 139 brgphyattach(struct device *parent, struct device *self, void *aux) 140 { 141 struct mii_softc *sc = (struct mii_softc *)self; 142 struct mii_attach_args *ma = aux; 143 struct mii_data *mii = ma->mii_data; 144 const struct mii_phydesc *mpd; 145 146 mpd = mii_phy_match(ma, brgphys); 147 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 148 149 sc->mii_inst = mii->mii_instance; 150 sc->mii_phy = ma->mii_phyno; 151 sc->mii_funcs = &brgphy_funcs; 152 sc->mii_pdata = mii; 153 sc->mii_flags = ma->mii_flags; 154 sc->mii_anegticks = 5; 155 156 PHY_RESET(sc); 157 158 sc->mii_capabilities = 159 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 160 if (sc->mii_capabilities & BMSR_EXTSTAT) 161 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 162 163 printf("%s: ", sc->mii_dev.dv_xname); 164 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 165 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 166 printf("no media present"); 167 else 168 mii_phy_add_media(sc); 169 printf("\n"); 170 } 171 172 int 173 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 174 { 175 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 176 int reg; 177 178 switch (cmd) { 179 case MII_POLLSTAT: 180 /* 181 * If we're not polling our PHY instance, just return. 182 */ 183 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 184 return (0); 185 break; 186 187 case MII_MEDIACHG: 188 /* 189 * If the media indicates a different PHY instance, 190 * isolate ourselves. 191 */ 192 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 193 reg = PHY_READ(sc, MII_BMCR); 194 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 195 return (0); 196 } 197 198 /* 199 * If the interface is not up, don't do anything. 200 */ 201 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 202 break; 203 204 mii_phy_setmedia(sc); 205 break; 206 207 case MII_TICK: 208 /* 209 * If we're not currently selected, just return. 210 */ 211 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 212 return (0); 213 214 if (mii_phy_tick(sc) == EJUSTRETURN) 215 return (0); 216 break; 217 218 case MII_DOWN: 219 mii_phy_down(sc); 220 return (0); 221 } 222 223 /* Update the media status. */ 224 mii_phy_status(sc); 225 226 /* Callback if something changed. */ 227 mii_phy_update(sc, cmd); 228 return (0); 229 } 230 231 void 232 brgphy_status(struct mii_softc *sc) 233 { 234 struct mii_data *mii = sc->mii_pdata; 235 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 236 int bmcr, auxsts, gtsr; 237 238 mii->mii_media_status = IFM_AVALID; 239 mii->mii_media_active = IFM_ETHER; 240 241 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 242 243 if (auxsts & BRGPHY_AUXSTS_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 ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 262 /* Erg, still trying, I guess... */ 263 mii->mii_media_active |= IFM_NONE; 264 return; 265 } 266 267 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 268 case BRGPHY_RES_1000FD: 269 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 270 gtsr = PHY_READ(sc, MII_100T2SR); 271 if (gtsr & GTSR_MS_RES) 272 mii->mii_media_active |= IFM_ETH_MASTER; 273 break; 274 275 case BRGPHY_RES_1000HD: 276 mii->mii_media_active |= IFM_1000_T; 277 gtsr = PHY_READ(sc, MII_100T2SR); 278 if (gtsr & GTSR_MS_RES) 279 mii->mii_media_active |= IFM_ETH_MASTER; 280 break; 281 282 case BRGPHY_RES_100FD: 283 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 284 break; 285 286 case BRGPHY_RES_100T4: 287 mii->mii_media_active |= IFM_100_T4; 288 break; 289 290 case BRGPHY_RES_100HD: 291 mii->mii_media_active |= IFM_100_TX; 292 break; 293 294 case BRGPHY_RES_10FD: 295 mii->mii_media_active |= IFM_10_T|IFM_FDX; 296 break; 297 298 case BRGPHY_RES_10HD: 299 mii->mii_media_active |= IFM_10_T; 300 break; 301 302 default: 303 mii->mii_media_active |= IFM_NONE; 304 mii->mii_media_status = 0; 305 } 306 } else 307 mii->mii_media_active = ife->ifm_media; 308 } 309
Indexes created Mon Oct 27 20:09:55 GMT 2025