brgphy.c revision 1.6.4.1
1 /* $NetBSD: brgphy.c,v 1.6.4.1 2002/07/12 04:17:20 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/cdefs.h> 77 __KERNEL_RCSID(0, "$NetBSD: brgphy.c,v 1.6.4.1 2002/07/12 04:17:20 thorpej 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/malloc.h> 84 #include <sys/socket.h> 85 #include <sys/errno.h> 86 87 #include <net/if.h> 88 #include <net/if_media.h> 89 90 #include <dev/mii/mii.h> 91 #include <dev/mii/miivar.h> 92 #include <dev/mii/miidevs.h> 93 94 #include <dev/mii/brgphyreg.h> 95 96 int brgphymatch(struct device *, struct cfdata *, void *); 97 void brgphyattach(struct device *, struct device *, void *); 98 99 struct cfattach brgphy_ca = { 100 sizeof(struct mii_softc), brgphymatch, brgphyattach, 101 mii_phy_detach, mii_phy_activate 102 }; 103 104 int brgphy_service(struct mii_softc *, struct mii_data *, int); 105 void brgphy_status(struct mii_softc *); 106 107 const struct mii_phy_funcs brgphy_funcs = { 108 brgphy_service, brgphy_status, mii_phy_reset, 109 }; 110 111 const struct mii_phydesc brgphys[] = { 112 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 113 MII_STR_BROADCOM_BCM5400 }, 114 115 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 116 MII_STR_BROADCOM_BCM5401 }, 117 118 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 119 MII_STR_BROADCOM_BCM5411 }, 120 121 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421, 122 MII_STR_BROADCOM_BCM5421 }, 123 124 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 125 MII_STR_BROADCOM_BCM5701 }, 126 127 { 0, 0, 128 NULL }, 129 }; 130 131 int 132 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 133 { 134 struct mii_attach_args *ma = aux; 135 136 if (mii_phy_match(ma, brgphys) != NULL) 137 return (10); 138 139 return (0); 140 } 141 142 void 143 brgphyattach(struct device *parent, struct device *self, void *aux) 144 { 145 struct mii_softc *sc = (struct mii_softc *)self; 146 struct mii_attach_args *ma = aux; 147 struct mii_data *mii = ma->mii_data; 148 const struct mii_phydesc *mpd; 149 150 mpd = mii_phy_match(ma, brgphys); 151 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 152 153 sc->mii_inst = mii->mii_instance; 154 sc->mii_phy = ma->mii_phyno; 155 sc->mii_funcs = &brgphy_funcs; 156 sc->mii_pdata = mii; 157 sc->mii_flags = ma->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 printf("%s: ", sc->mii_dev.dv_xname); 168 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 169 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 170 printf("no media present"); 171 else 172 mii_phy_add_media(sc); 173 printf("\n"); 174 } 175 176 int 177 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 178 { 179 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 180 int reg; 181 182 switch (cmd) { 183 case MII_POLLSTAT: 184 /* 185 * If we're not polling our PHY instance, just return. 186 */ 187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 188 return (0); 189 break; 190 191 case MII_MEDIACHG: 192 /* 193 * If the media indicates a different PHY instance, 194 * isolate ourselves. 195 */ 196 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 197 reg = PHY_READ(sc, MII_BMCR); 198 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 199 return (0); 200 } 201 202 /* 203 * If the interface is not up, don't do anything. 204 */ 205 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 206 break; 207 208 mii_phy_setmedia(sc); 209 break; 210 211 case MII_TICK: 212 /* 213 * If we're not currently selected, just return. 214 */ 215 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 216 return (0); 217 218 if (mii_phy_tick(sc) == EJUSTRETURN) 219 return (0); 220 break; 221 222 case MII_DOWN: 223 mii_phy_down(sc); 224 return (0); 225 } 226 227 /* Update the media status. */ 228 mii_phy_status(sc); 229 230 /* Callback if something changed. */ 231 mii_phy_update(sc, cmd); 232 return (0); 233 } 234 235 void 236 brgphy_status(struct mii_softc *sc) 237 { 238 struct mii_data *mii = sc->mii_pdata; 239 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 240 int bmcr, auxsts, gtsr; 241 242 mii->mii_media_status = IFM_AVALID; 243 mii->mii_media_active = IFM_ETHER; 244 245 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 246 247 if (auxsts & BRGPHY_AUXSTS_LINK) 248 mii->mii_media_status |= IFM_ACTIVE; 249 250 bmcr = PHY_READ(sc, MII_BMCR); 251 if (bmcr & BMCR_ISO) { 252 mii->mii_media_active |= IFM_NONE; 253 mii->mii_media_status = 0; 254 return; 255 } 256 257 if (bmcr & BMCR_LOOP) 258 mii->mii_media_active |= IFM_LOOP; 259 260 if (bmcr & BMCR_AUTOEN) { 261 /* 262 * The media status bits are only valid of autonegotiation 263 * has completed (or it's disabled). 264 */ 265 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 266 /* Erg, still trying, I guess... */ 267 mii->mii_media_active |= IFM_NONE; 268 return; 269 } 270 271 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 272 case BRGPHY_RES_1000FD: 273 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 274 gtsr = PHY_READ(sc, MII_100T2SR); 275 if (gtsr & GTSR_MS_RES) 276 mii->mii_media_active |= IFM_ETH_MASTER; 277 break; 278 279 case BRGPHY_RES_1000HD: 280 mii->mii_media_active |= IFM_1000_T; 281 gtsr = PHY_READ(sc, MII_100T2SR); 282 if (gtsr & GTSR_MS_RES) 283 mii->mii_media_active |= IFM_ETH_MASTER; 284 break; 285 286 case BRGPHY_RES_100FD: 287 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 288 break; 289 290 case BRGPHY_RES_100T4: 291 mii->mii_media_active |= IFM_100_T4; 292 break; 293 294 case BRGPHY_RES_100HD: 295 mii->mii_media_active |= IFM_100_TX; 296 break; 297 298 case BRGPHY_RES_10FD: 299 mii->mii_media_active |= IFM_10_T|IFM_FDX; 300 break; 301 302 case BRGPHY_RES_10HD: 303 mii->mii_media_active |= IFM_10_T; 304 break; 305 306 default: 307 mii->mii_media_active |= IFM_NONE; 308 mii->mii_media_status = 0; 309 } 310 } else 311 mii->mii_media_active = ife->ifm_media; 312 } 313
Indexes created Sun Oct 19 16:10:00 GMT 2025