brgphy.c revision 1.4
1 /* $NetBSD: brgphy.c,v 1.4 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 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/param.h> 77 #include <sys/systm.h> 78 #include <sys/kernel.h> 79 #include <sys/device.h> 80 #include <sys/malloc.h> 81 #include <sys/socket.h> 82 #include <sys/errno.h> 83 84 #include <net/if.h> 85 #include <net/if_media.h> 86 87 #include <dev/mii/mii.h> 88 #include <dev/mii/miivar.h> 89 #include <dev/mii/miidevs.h> 90 91 #include <dev/mii/brgphyreg.h> 92 93 int brgphymatch(struct device *, struct cfdata *, void *); 94 void brgphyattach(struct device *, struct device *, void *); 95 96 struct cfattach brgphy_ca = { 97 sizeof(struct mii_softc), brgphymatch, brgphyattach, 98 mii_phy_detach, mii_phy_activate 99 }; 100 101 int brgphy_service(struct mii_softc *, struct mii_data *, int); 102 void brgphy_status(struct mii_softc *); 103 104 const struct mii_phy_funcs brgphy_funcs = { 105 brgphy_service, brgphy_status, mii_phy_reset, 106 }; 107 108 const struct mii_phydesc brgphys[] = { 109 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 110 MII_STR_BROADCOM_BCM5400 }, 111 112 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 113 MII_STR_BROADCOM_BCM5401 }, 114 115 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 116 MII_STR_BROADCOM_BCM5411 }, 117 118 { 0, 0, 119 NULL }, 120 }; 121 122 int 123 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 124 { 125 struct mii_attach_args *ma = aux; 126 127 if (mii_phy_match(ma, brgphys) != NULL) 128 return (10); 129 130 return (0); 131 } 132 133 void 134 brgphyattach(struct device *parent, struct device *self, 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, brgphys); 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 = &brgphy_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 sc->mii_capabilities = 154 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 155 if (sc->mii_capabilities & BMSR_EXTSTAT) 156 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 157 158 printf("%s: ", sc->mii_dev.dv_xname); 159 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 160 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 161 printf("no media present"); 162 else 163 mii_phy_add_media(sc); 164 printf("\n"); 165 } 166 167 int 168 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 169 { 170 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 171 int reg; 172 173 switch (cmd) { 174 case MII_POLLSTAT: 175 /* 176 * If we're not polling our PHY instance, just return. 177 */ 178 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 179 return (0); 180 break; 181 182 case MII_MEDIACHG: 183 /* 184 * If the media indicates a different PHY instance, 185 * isolate ourselves. 186 */ 187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 188 reg = PHY_READ(sc, MII_BMCR); 189 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 190 return (0); 191 } 192 193 /* 194 * If the interface is not up, don't do anything. 195 */ 196 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 197 break; 198 199 mii_phy_setmedia(sc); 200 break; 201 202 case MII_TICK: 203 /* 204 * If we're not currently selected, just return. 205 */ 206 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 207 return (0); 208 209 if (mii_phy_tick(sc) == EJUSTRETURN) 210 return (0); 211 break; 212 213 case MII_DOWN: 214 mii_phy_down(sc); 215 return (0); 216 } 217 218 /* Update the media status. */ 219 mii_phy_status(sc); 220 221 /* Callback if something changed. */ 222 mii_phy_update(sc, cmd); 223 return (0); 224 } 225 226 void 227 brgphy_status(struct mii_softc *sc) 228 { 229 struct mii_data *mii = sc->mii_pdata; 230 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 231 int bmcr, auxsts, gtsr; 232 233 mii->mii_media_status = IFM_AVALID; 234 mii->mii_media_active = IFM_ETHER; 235 236 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 237 238 if (auxsts & BRGPHY_AUXSTS_LINK) 239 mii->mii_media_status |= IFM_ACTIVE; 240 241 bmcr = PHY_READ(sc, MII_BMCR); 242 if (bmcr & BMCR_ISO) { 243 mii->mii_media_active |= IFM_NONE; 244 mii->mii_media_status = 0; 245 return; 246 } 247 248 if (bmcr & BMCR_LOOP) 249 mii->mii_media_active |= IFM_LOOP; 250 251 if (bmcr & BMCR_AUTOEN) { 252 /* 253 * The media status bits are only valid of autonegotiation 254 * has completed (or it's disabled). 255 */ 256 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 257 /* Erg, still trying, I guess... */ 258 mii->mii_media_active |= IFM_NONE; 259 return; 260 } 261 262 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 263 case BRGPHY_RES_1000FD: 264 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 265 gtsr = PHY_READ(sc, MII_100T2SR); 266 if (gtsr & GTSR_MS_RES) 267 mii->mii_media_active |= IFM_ETH_MASTER; 268 break; 269 270 case BRGPHY_RES_1000HD: 271 mii->mii_media_active |= IFM_1000_T; 272 gtsr = PHY_READ(sc, MII_100T2SR); 273 if (gtsr & GTSR_MS_RES) 274 mii->mii_media_active |= IFM_ETH_MASTER; 275 break; 276 277 case BRGPHY_RES_100FD: 278 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 279 break; 280 281 case BRGPHY_RES_100T4: 282 mii->mii_media_active |= IFM_100_T4; 283 break; 284 285 case BRGPHY_RES_100HD: 286 mii->mii_media_active |= IFM_100_TX; 287 break; 288 289 case BRGPHY_RES_10FD: 290 mii->mii_media_active |= IFM_10_T|IFM_FDX; 291 break; 292 293 case BRGPHY_RES_10HD: 294 mii->mii_media_active |= IFM_10_T; 295 break; 296 297 default: 298 mii->mii_media_active |= IFM_NONE; 299 mii->mii_media_status = 0; 300 } 301 } else 302 mii->mii_media_active = ife->ifm_media; 303 } 304
Indexes created Fri Sep 26 08:10:20 GMT 2025