acphy.c revision 129844
1/*- 2 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 7 * NASA Ames Research Center. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38/* 39 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by Manuel Bouyer. 52 * 4. The name of the author may not be used to endorse or promote products 53 * derived from this software without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 56 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 57 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 58 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 59 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 60 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 64 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 65 */ 66 67#include <sys/cdefs.h> 68__FBSDID("$FreeBSD: head/sys/dev/mii/acphy.c 129844 2004-05-29 18:09:10Z marius $"); 69 70/* 71 * Driver for Altima AC101 10/100 PHY 72 */ 73 74#include <sys/param.h> 75#include <sys/systm.h> 76#include <sys/kernel.h> 77#include <sys/socket.h> 78#include <sys/errno.h> 79#include <sys/module.h> 80#include <sys/bus.h> 81 82#include <net/if.h> 83#include <net/if_media.h> 84 85#include <dev/mii/mii.h> 86#include <dev/mii/miivar.h> 87#include "miidevs.h" 88 89#include <dev/mii/acphyreg.h> 90 91#include "miibus_if.h" 92 93static int acphy_probe(device_t); 94static int acphy_attach(device_t); 95 96static device_method_t acphy_methods[] = { 97 /* device interface */ 98 DEVMETHOD(device_probe, acphy_probe), 99 DEVMETHOD(device_attach, acphy_attach), 100 DEVMETHOD(device_detach, mii_phy_detach), 101 DEVMETHOD(device_shutdown, bus_generic_shutdown), 102 { 0, 0 } 103}; 104 105static devclass_t acphy_devclass; 106 107static driver_t acphy_driver = { 108 "acphy", 109 acphy_methods, 110 sizeof(struct mii_softc) 111}; 112 113DRIVER_MODULE(acphy, miibus, acphy_driver, acphy_devclass, 0, 0); 114 115static int acphy_service(struct mii_softc *, struct mii_data *, int); 116static void acphy_reset(struct mii_softc *); 117static void acphy_status(struct mii_softc *); 118 119static int 120acphy_probe(dev) 121 device_t dev; 122{ 123 struct mii_attach_args *ma; 124 125 ma = device_get_ivars(dev); 126 127 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && 128 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101) { 129 device_set_desc(dev, MII_STR_xxALTIMA_AC101); 130 } else if(MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && 131 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101L) { 132 device_set_desc(dev, MII_STR_xxALTIMA_AC101L); 133 } else 134 return (ENXIO); 135 136 return (0); 137} 138 139static int 140acphy_attach(dev) 141 device_t dev; 142{ 143 struct mii_softc *sc; 144 struct mii_attach_args *ma; 145 struct mii_data *mii; 146 147 sc = device_get_softc(dev); 148 ma = device_get_ivars(dev); 149 sc->mii_dev = device_get_parent(dev); 150 mii = device_get_softc(sc->mii_dev); 151 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 152 153 sc->mii_inst = mii->mii_instance; 154 sc->mii_phy = ma->mii_phyno; 155 sc->mii_service = acphy_service; 156 sc->mii_pdata = mii; 157 sc->mii_flags |= MIIF_NOISOLATE; 158 159 acphy_reset(sc); 160 161 mii->mii_instance++; 162 163 sc->mii_capabilities = 164 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 165 device_printf(dev, " "); 166 mii_add_media(sc); 167 printf("\n"); 168 169 MIIBUS_MEDIAINIT(sc->mii_dev); 170 return (0); 171} 172 173static int 174acphy_service(sc, mii, cmd) 175 struct mii_softc *sc; 176 struct mii_data *mii; 177 int cmd; 178{ 179 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 180 int reg; 181 182 /* 183 * If we're not selected, then do nothing, just isolate and power 184 * down, if changing media. 185 */ 186 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 187 if (cmd == MII_MEDIACHG) { 188 reg = PHY_READ(sc, MII_BMCR); 189 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO | BMCR_PDOWN); 190 } 191 192 return (0); 193 } 194 195 switch (cmd) { 196 case MII_POLLSTAT: 197 break; 198 199 case MII_MEDIACHG: 200 /* 201 * If the interface is not up, don't do anything. 202 */ 203 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 204 break; 205 206 /* Wake & deisolate up if necessary */ 207 reg = PHY_READ(sc, MII_BMCR); 208 if (reg & (BMCR_ISO | BMCR_PDOWN)) 209 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 210 211 switch (IFM_SUBTYPE(ife->ifm_media)) { 212 case IFM_AUTO: 213 /* 214 * If we're already in auto mode, just return. 215 */ 216 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 217 return (0); 218 219 (void) mii_phy_auto(sc); 220 break; 221 222 default: 223 /* 224 * BMCR data is stored in the ifmedia entry. 225 */ 226 PHY_WRITE(sc, MII_ANAR, 227 mii_anar(ife->ifm_media)); 228 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 229 } 230 break; 231 232 case MII_TICK: 233 /* 234 * Is the interface even up? 235 */ 236 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 237 return (0); 238 239 /* 240 * Only used for autonegotiation. 241 */ 242 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 243 break; 244 245 /* 246 * This PHY's autonegotiation doesn't need to be kicked. 247 */ 248 break; 249 } 250 251 /* Update the media status. */ 252 acphy_status(sc); 253 254 /* Callback if something changed. */ 255 mii_phy_update(sc, cmd); 256 return (0); 257} 258 259static void 260acphy_status(sc) 261 struct mii_softc *sc; 262{ 263 struct mii_data *mii = sc->mii_pdata; 264 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 265 int bmsr, bmcr, diag; 266 267 mii->mii_media_status = IFM_AVALID; 268 mii->mii_media_active = IFM_ETHER; 269 270 bmsr = PHY_READ(sc, MII_BMSR) | 271 PHY_READ(sc, MII_BMSR); 272 if (bmsr & BMSR_LINK) 273 mii->mii_media_status |= IFM_ACTIVE; 274 275 bmcr = PHY_READ(sc, MII_BMCR); 276 if (bmcr & BMCR_ISO) { 277 mii->mii_media_active |= IFM_NONE; 278 mii->mii_media_status = 0; 279 return; 280 } 281 282 if (bmcr & BMCR_LOOP) 283 mii->mii_media_active |= IFM_LOOP; 284 285 if (bmcr & BMCR_AUTOEN) { 286 if ((bmsr & BMSR_ACOMP) == 0) { 287 /* Erg, still trying, I guess... */ 288 mii->mii_media_active |= IFM_NONE; 289 return; 290 } 291 diag = PHY_READ(sc, MII_ACPHY_DIAG); 292 if (diag & AC_DIAG_SPEED) 293 mii->mii_media_active |= IFM_100_TX; 294 else 295 mii->mii_media_active |= IFM_10_T; 296 297 if (diag & AC_DIAG_DUPLEX) 298 mii->mii_media_active |= IFM_FDX; 299 } else 300 mii->mii_media_active = ife->ifm_media; 301} 302 303static void 304acphy_reset(sc) 305 struct mii_softc *sc; 306{ 307 308 mii_phy_reset(sc); 309 PHY_WRITE(sc, MII_ACPHY_INT, 0); 310} 311