acphy.c revision 160076
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 160076 2006-07-03 02:53:40Z yongari $"); 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(device_t dev) 121{ 122 struct mii_attach_args *ma; 123 124 ma = device_get_ivars(dev); 125 126 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && 127 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101) { 128 device_set_desc(dev, MII_STR_xxALTIMA_AC101); 129 } else if(MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && 130 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101L) { 131 device_set_desc(dev, MII_STR_xxALTIMA_AC101L); 132 } else 133 return (ENXIO); 134 135 return (BUS_PROBE_DEFAULT); 136} 137 138static int 139acphy_attach(device_t dev) 140{ 141 struct mii_softc *sc; 142 struct mii_attach_args *ma; 143 struct mii_data *mii; 144 145 sc = device_get_softc(dev); 146 ma = device_get_ivars(dev); 147 sc->mii_dev = device_get_parent(dev); 148 mii = device_get_softc(sc->mii_dev); 149 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 150 151 sc->mii_inst = mii->mii_instance; 152 sc->mii_phy = ma->mii_phyno; 153 sc->mii_service = acphy_service; 154 sc->mii_pdata = mii; 155 sc->mii_flags |= MIIF_NOISOLATE; 156 157 acphy_reset(sc); 158 159 mii->mii_instance++; 160 161 sc->mii_capabilities = 162 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 163 device_printf(dev, " "); 164 mii_add_media(sc); 165 printf("\n"); 166 167 MIIBUS_MEDIAINIT(sc->mii_dev); 168 return (0); 169} 170 171static int 172acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 173{ 174 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 175 int reg; 176 177 /* 178 * If we're not selected, then do nothing, just isolate and power 179 * down, if changing media. 180 */ 181 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 182 if (cmd == MII_MEDIACHG) { 183 reg = PHY_READ(sc, MII_BMCR); 184 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO | BMCR_PDOWN); 185 } 186 187 return (0); 188 } 189 190 switch (cmd) { 191 case MII_POLLSTAT: 192 break; 193 194 case MII_MEDIACHG: 195 /* 196 * If the interface is not up, don't do anything. 197 */ 198 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 199 break; 200 201 /* Wake & deisolate up if necessary */ 202 reg = PHY_READ(sc, MII_BMCR); 203 if (reg & (BMCR_ISO | BMCR_PDOWN)) 204 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 205 206 switch (IFM_SUBTYPE(ife->ifm_media)) { 207 case IFM_AUTO: 208 /* 209 * If we're already in auto mode, just return. 210 */ 211 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 212 return (0); 213 214 (void) mii_phy_auto(sc); 215 break; 216 217 default: 218 /* 219 * BMCR data is stored in the ifmedia entry. 220 */ 221 PHY_WRITE(sc, MII_ANAR, 222 mii_anar(ife->ifm_media)); 223 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 224 } 225 break; 226 227 case MII_TICK: 228 /* 229 * Is the interface even up? 230 */ 231 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 232 return (0); 233 234 /* 235 * Only used for autonegotiation. 236 */ 237 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 238 break; 239 240 /* 241 * This PHY's autonegotiation doesn't need to be kicked. 242 */ 243 break; 244 } 245 246 /* Update the media status. */ 247 acphy_status(sc); 248 249 /* Callback if something changed. */ 250 mii_phy_update(sc, cmd); 251 return (0); 252} 253 254static void 255acphy_status(struct mii_softc *sc) 256{ 257 struct mii_data *mii = sc->mii_pdata; 258 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 259 int bmsr, bmcr, diag; 260 261 mii->mii_media_status = IFM_AVALID; 262 mii->mii_media_active = IFM_ETHER; 263 264 bmsr = PHY_READ(sc, MII_BMSR) | 265 PHY_READ(sc, MII_BMSR); 266 if (bmsr & BMSR_LINK) 267 mii->mii_media_status |= IFM_ACTIVE; 268 269 bmcr = PHY_READ(sc, MII_BMCR); 270 if (bmcr & BMCR_ISO) { 271 mii->mii_media_active |= IFM_NONE; 272 mii->mii_media_status = 0; 273 return; 274 } 275 276 if (bmcr & BMCR_LOOP) 277 mii->mii_media_active |= IFM_LOOP; 278 279 if (bmcr & BMCR_AUTOEN) { 280 if ((bmsr & BMSR_ACOMP) == 0) { 281 /* Erg, still trying, I guess... */ 282 mii->mii_media_active |= IFM_NONE; 283 return; 284 } 285 diag = PHY_READ(sc, MII_ACPHY_DIAG); 286 if (diag & AC_DIAG_SPEED) 287 mii->mii_media_active |= IFM_100_TX; 288 else 289 mii->mii_media_active |= IFM_10_T; 290 291 if (diag & AC_DIAG_DUPLEX) 292 mii->mii_media_active |= IFM_FDX; 293 } else 294 mii->mii_media_active = ife->ifm_media; 295} 296 297static void 298acphy_reset(struct mii_softc *sc) 299{ 300 301 mii_phy_reset(sc); 302 PHY_WRITE(sc, MII_ACPHY_INT, 0); 303} 304