brgphy.c revision 1.1
1 /* $NetBSD: brgphy.c,v 1.1 2001/06/01 16:49:59 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 __P((struct device *, struct cfdata *, void *)); 94 void brgphyattach __P((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 __P((struct mii_softc *, struct mii_data *, int)); 102 void brgphy_status __P((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 brgdev { 109 u_int32_t oui; 110 u_int32_t model; 111 const char *name; 112 } brgdevs[] = { 113 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 114 MII_STR_BROADCOM_BCM5400 }, 115 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 116 MII_STR_BROADCOM_BCM5401 }, 117 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 118 MII_STR_BROADCOM_BCM5411 }, 119 120 { 0, 0, 121 NULL }, 122 }; 123 124 static const struct brgdev * 125 brgphy_lookup(const struct mii_attach_args *ma) 126 { 127 const struct brgdev *b; 128 129 for (b = brgdevs; b->name != NULL; b++) { 130 if (MII_OUI(ma->mii_id1, ma->mii_id2) == b->oui && 131 MII_MODEL(ma->mii_id2) == b->model) 132 return (b); 133 } 134 return (NULL); 135 } 136 137 int 138 brgphymatch(parent, match, aux) 139 struct device *parent; 140 struct cfdata *match; 141 void *aux; 142 { 143 struct mii_attach_args *ma = aux; 144 145 if (brgphy_lookup(ma) != NULL) 146 return (10); 147 148 return (0); 149 } 150 151 void 152 brgphyattach(parent, self, aux) 153 struct device *parent, *self; 154 void *aux; 155 { 156 struct mii_softc *sc = (struct mii_softc *)self; 157 struct mii_attach_args *ma = aux; 158 struct mii_data *mii = ma->mii_data; 159 const struct brgdev *b; 160 161 b = brgphy_lookup(ma); 162 if (b == NULL) { 163 printf("\n"); 164 panic("brgphyattach: impossible"); 165 } 166 167 printf(": %s, rev. %d\n", b->name, MII_REV(ma->mii_id2)); 168 169 sc->mii_inst = mii->mii_instance; 170 sc->mii_phy = ma->mii_phyno; 171 sc->mii_funcs = &brgphy_funcs; 172 sc->mii_pdata = mii; 173 sc->mii_flags = mii->mii_flags; 174 sc->mii_anegticks = 5; 175 176 PHY_RESET(sc); 177 178 sc->mii_capabilities = 179 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 180 if (sc->mii_capabilities & BMSR_EXTSTAT) 181 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 182 183 printf("%s: ", sc->mii_dev.dv_xname); 184 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 185 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 186 printf("no media present"); 187 else 188 mii_phy_add_media(sc); 189 printf("\n"); 190 } 191 192 int 193 brgphy_service(sc, mii, cmd) 194 struct mii_softc *sc; 195 struct mii_data *mii; 196 int cmd; 197 { 198 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 199 int reg; 200 201 switch (cmd) { 202 case MII_POLLSTAT: 203 /* 204 * If we're not polling our PHY instance, just return. 205 */ 206 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 207 return (0); 208 break; 209 210 case MII_MEDIACHG: 211 /* 212 * If the media indicates a different PHY instance, 213 * isolate ourselves. 214 */ 215 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 216 reg = PHY_READ(sc, MII_BMCR); 217 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 218 return (0); 219 } 220 221 /* 222 * If the interface is not up, don't do anything. 223 */ 224 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 225 break; 226 227 mii_phy_setmedia(sc); 228 break; 229 230 case MII_TICK: 231 /* 232 * If we're not currently selected, just return. 233 */ 234 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 235 return (0); 236 237 if (mii_phy_tick(sc) == EJUSTRETURN) 238 return (0); 239 break; 240 241 case MII_DOWN: 242 mii_phy_down(sc); 243 return (0); 244 } 245 246 /* Update the media status. */ 247 mii_phy_status(sc); 248 249 /* Callback if something changed. */ 250 mii_phy_update(sc, cmd); 251 return (0); 252 } 253 254 void 255 brgphy_status(sc) 256 struct mii_softc *sc; 257 { 258 struct mii_data *mii = sc->mii_pdata; 259 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 260 int bmcr, auxsts, gtsr; 261 262 mii->mii_media_status = IFM_AVALID; 263 mii->mii_media_active = IFM_ETHER; 264 265 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 266 267 if (auxsts & BRGPHY_AUXSTS_LINK) 268 mii->mii_media_status |= IFM_ACTIVE; 269 270 bmcr = PHY_READ(sc, MII_BMCR); 271 if (bmcr & BMCR_ISO) { 272 mii->mii_media_active |= IFM_NONE; 273 mii->mii_media_status = 0; 274 return; 275 } 276 277 if (bmcr & BMCR_LOOP) 278 mii->mii_media_active |= IFM_LOOP; 279 280 if (bmcr & BMCR_AUTOEN) { 281 /* 282 * The media status bits are only valid of autonegotiation 283 * has completed (or it's disabled). 284 */ 285 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 286 /* Erg, still trying, I guess... */ 287 mii->mii_media_active |= IFM_NONE; 288 return; 289 } 290 291 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 292 case BRGPHY_RES_1000FD: 293 mii->mii_media_active |= IFM_1000_TX|IFM_FDX; 294 gtsr = PHY_READ(sc, MII_100T2SR); 295 if (gtsr & GTSR_MS_RES) 296 mii->mii_media_active |= IFM_ETH_MASTER; 297 break; 298 299 case BRGPHY_RES_1000HD: 300 mii->mii_media_active |= IFM_1000_TX; 301 gtsr = PHY_READ(sc, MII_100T2SR); 302 if (gtsr & GTSR_MS_RES) 303 mii->mii_media_active |= IFM_ETH_MASTER; 304 break; 305 306 case BRGPHY_RES_100FD: 307 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 308 break; 309 310 case BRGPHY_RES_100T4: 311 mii->mii_media_active |= IFM_100_T4; 312 break; 313 314 case BRGPHY_RES_100HD: 315 mii->mii_media_active |= IFM_100_TX; 316 break; 317 318 case BRGPHY_RES_10FD: 319 mii->mii_media_active |= IFM_10_T|IFM_FDX; 320 break; 321 322 case BRGPHY_RES_10HD: 323 mii->mii_media_active |= IFM_10_T; 324 break; 325 326 default: 327 mii->mii_media_active |= IFM_NONE; 328 mii->mii_media_status = 0; 329 } 330 } else 331 mii->mii_media_active = ife->ifm_media; 332 } 333
Indexes created Thu Sep 25 16:09:42 GMT 2025