acphy.c revision 165987
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 165987 2007-01-12 22:59:38Z 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 const struct mii_phydesc acphys[] = { 120 MII_PHY_DESC(xxALTIMA, AC101), 121 MII_PHY_DESC(xxALTIMA, AC101L), 122 /* XXX This is reported to work, but it's not from any data sheet. */ 123 MII_PHY_DESC(xxALTIMA, ACXXX), 124 MII_PHY_END 125}; 126 127static int 128acphy_probe(device_t dev) 129{ 130 131 return (mii_phy_dev_probe(dev, acphys, BUS_PROBE_DEFAULT)); 132} 133 134static int 135acphy_attach(device_t dev) 136{ 137 struct mii_softc *sc; 138 struct mii_attach_args *ma; 139 struct mii_data *mii; 140 141 sc = device_get_softc(dev); 142 ma = device_get_ivars(dev); 143 sc->mii_dev = device_get_parent(dev); 144 mii = device_get_softc(sc->mii_dev); 145 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 146 147 sc->mii_inst = mii->mii_instance; 148 sc->mii_phy = ma->mii_phyno; 149 sc->mii_service = acphy_service; 150 sc->mii_pdata = mii; 151 152 mii->mii_instance++; 153 154 acphy_reset(sc); 155 156 sc->mii_capabilities = 157 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 158 device_printf(dev, " "); 159 160#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 161 if ((PHY_READ(sc, MII_ACPHY_MCTL) & AC_MCTL_FX_SEL) != 0) { 162 sc->mii_flags |= MIIF_HAVEFIBER; 163 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst), 164 MII_MEDIA_100_TX); 165 printf("100baseFX, "); 166 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst), 167 MII_MEDIA_100_TX_FDX); 168 printf("100baseFX-FDX, "); 169 } 170#undef ADD 171 172 mii_phy_add_media(sc); 173 printf("\n"); 174 175 MIIBUS_MEDIAINIT(sc->mii_dev); 176 return (0); 177} 178 179static int 180acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 181{ 182 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 183 int reg; 184 185 /* 186 * If we're not selected, then do nothing, just isolate and power 187 * down, if changing media. 188 */ 189 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 190 if (cmd == MII_MEDIACHG) { 191 reg = PHY_READ(sc, MII_BMCR); 192 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO | BMCR_PDOWN); 193 } 194 195 return (0); 196 } 197 198 switch (cmd) { 199 case MII_POLLSTAT: 200 break; 201 202 case MII_MEDIACHG: 203 /* 204 * If the interface is not up, don't do anything. 205 */ 206 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 207 break; 208 209 /* Wake & deisolate up if necessary */ 210 reg = PHY_READ(sc, MII_BMCR); 211 if (reg & (BMCR_ISO | BMCR_PDOWN)) 212 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 213 214 mii_phy_setmedia(sc); 215 break; 216 217 case MII_TICK: 218 /* 219 * Is the interface even up? 220 */ 221 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 222 return (0); 223 224 /* 225 * This PHY's autonegotiation doesn't need to be kicked. 226 */ 227 break; 228 } 229 230 /* Update the media status. */ 231 acphy_status(sc); 232 233 /* Callback if something changed. */ 234 mii_phy_update(sc, cmd); 235 return (0); 236} 237 238static void 239acphy_status(struct mii_softc *sc) 240{ 241 struct mii_data *mii = sc->mii_pdata; 242 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 243 int bmsr, bmcr, diag; 244 245 mii->mii_media_status = IFM_AVALID; 246 mii->mii_media_active = IFM_ETHER; 247 248 bmsr = PHY_READ(sc, MII_BMSR) | 249 PHY_READ(sc, MII_BMSR); 250 if (bmsr & BMSR_LINK) 251 mii->mii_media_status |= IFM_ACTIVE; 252 253 bmcr = PHY_READ(sc, MII_BMCR); 254 if (bmcr & BMCR_ISO) { 255 mii->mii_media_active |= IFM_NONE; 256 mii->mii_media_status = 0; 257 return; 258 } 259 260 if (bmcr & BMCR_LOOP) 261 mii->mii_media_active |= IFM_LOOP; 262 263 if (bmcr & BMCR_AUTOEN) { 264 if ((bmsr & BMSR_ACOMP) == 0) { 265 /* Erg, still trying, I guess... */ 266 mii->mii_media_active |= IFM_NONE; 267 return; 268 } 269 diag = PHY_READ(sc, MII_ACPHY_DIAG); 270 if (diag & AC_DIAG_SPEED) 271 mii->mii_media_active |= IFM_100_TX; 272 else 273 mii->mii_media_active |= IFM_10_T; 274 275 if (diag & AC_DIAG_DUPLEX) 276 mii->mii_media_active |= IFM_FDX; 277 } else 278 mii->mii_media_active = ife->ifm_media; 279} 280 281static void 282acphy_reset(struct mii_softc *sc) 283{ 284 285 mii_phy_reset(sc); 286 PHY_WRITE(sc, MII_ACPHY_INT, 0); 287} 288