acphy.c revision 213384
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 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31/*- 32 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 44 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 45 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 46 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 47 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 48 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 49 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 50 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 51 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 52 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 53 */ 54 55#include <sys/cdefs.h> 56__FBSDID("$FreeBSD: head/sys/dev/mii/acphy.c 213384 2010-10-03 17:00:57Z marius $"); 57 58/* 59 * Driver for Altima AC101 10/100 PHY 60 */ 61 62#include <sys/param.h> 63#include <sys/systm.h> 64#include <sys/kernel.h> 65#include <sys/socket.h> 66#include <sys/errno.h> 67#include <sys/module.h> 68#include <sys/bus.h> 69 70#include <net/if.h> 71#include <net/if_media.h> 72 73#include <dev/mii/mii.h> 74#include <dev/mii/miivar.h> 75#include "miidevs.h" 76 77#include <dev/mii/acphyreg.h> 78 79#include "miibus_if.h" 80 81static int acphy_probe(device_t); 82static int acphy_attach(device_t); 83 84static device_method_t acphy_methods[] = { 85 /* device interface */ 86 DEVMETHOD(device_probe, acphy_probe), 87 DEVMETHOD(device_attach, acphy_attach), 88 DEVMETHOD(device_detach, mii_phy_detach), 89 DEVMETHOD(device_shutdown, bus_generic_shutdown), 90 { 0, 0 } 91}; 92 93static devclass_t acphy_devclass; 94 95static driver_t acphy_driver = { 96 "acphy", 97 acphy_methods, 98 sizeof(struct mii_softc) 99}; 100 101DRIVER_MODULE(acphy, miibus, acphy_driver, acphy_devclass, 0, 0); 102 103static int acphy_service(struct mii_softc *, struct mii_data *, int); 104static void acphy_reset(struct mii_softc *); 105static void acphy_status(struct mii_softc *); 106 107static const struct mii_phydesc acphys[] = { 108 MII_PHY_DESC(xxALTIMA, AC101), 109 MII_PHY_DESC(xxALTIMA, AC101L), 110 /* XXX This is reported to work, but it's not from any data sheet. */ 111 MII_PHY_DESC(xxALTIMA, ACXXX), 112 MII_PHY_END 113}; 114 115static int 116acphy_probe(device_t dev) 117{ 118 119 return (mii_phy_dev_probe(dev, acphys, BUS_PROBE_DEFAULT)); 120} 121 122static int 123acphy_attach(device_t dev) 124{ 125 struct mii_softc *sc; 126 struct mii_attach_args *ma; 127 struct mii_data *mii; 128 129 sc = device_get_softc(dev); 130 ma = device_get_ivars(dev); 131 sc->mii_dev = device_get_parent(dev); 132 mii = ma->mii_data; 133 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 134 135 sc->mii_inst = mii->mii_instance++; 136 sc->mii_phy = ma->mii_phyno; 137 sc->mii_service = acphy_service; 138 sc->mii_pdata = mii; 139 140 acphy_reset(sc); 141 142 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 143 device_printf(dev, " "); 144 145#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 146 if ((PHY_READ(sc, MII_ACPHY_MCTL) & AC_MCTL_FX_SEL) != 0) { 147 sc->mii_flags |= MIIF_HAVEFIBER; 148 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst), 149 MII_MEDIA_100_TX); 150 printf("100baseFX, "); 151 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst), 152 MII_MEDIA_100_TX_FDX); 153 printf("100baseFX-FDX, "); 154 } 155#undef ADD 156 157 mii_phy_add_media(sc); 158 printf("\n"); 159 160 MIIBUS_MEDIAINIT(sc->mii_dev); 161 return (0); 162} 163 164static int 165acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 166{ 167 int reg; 168 169 switch (cmd) { 170 case MII_POLLSTAT: 171 break; 172 173 case MII_MEDIACHG: 174 /* 175 * If the interface is not up, don't do anything. 176 */ 177 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 178 break; 179 180 /* Wake & deisolate up if necessary */ 181 reg = PHY_READ(sc, MII_BMCR); 182 if (reg & (BMCR_ISO | BMCR_PDOWN)) 183 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 184 185 mii_phy_setmedia(sc); 186 break; 187 188 case MII_TICK: 189 /* 190 * Is the interface even up? 191 */ 192 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 193 return (0); 194 195 /* 196 * This PHY's autonegotiation doesn't need to be kicked. 197 */ 198 break; 199 } 200 201 /* Update the media status. */ 202 acphy_status(sc); 203 204 /* Callback if something changed. */ 205 mii_phy_update(sc, cmd); 206 return (0); 207} 208 209static void 210acphy_status(struct mii_softc *sc) 211{ 212 struct mii_data *mii = sc->mii_pdata; 213 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 214 int bmsr, bmcr, diag; 215 216 mii->mii_media_status = IFM_AVALID; 217 mii->mii_media_active = IFM_ETHER; 218 219 bmsr = PHY_READ(sc, MII_BMSR) | 220 PHY_READ(sc, MII_BMSR); 221 if (bmsr & BMSR_LINK) 222 mii->mii_media_status |= IFM_ACTIVE; 223 224 bmcr = PHY_READ(sc, MII_BMCR); 225 if (bmcr & BMCR_ISO) { 226 mii->mii_media_active |= IFM_NONE; 227 mii->mii_media_status = 0; 228 return; 229 } 230 231 if (bmcr & BMCR_LOOP) 232 mii->mii_media_active |= IFM_LOOP; 233 234 if (bmcr & BMCR_AUTOEN) { 235 if ((bmsr & BMSR_ACOMP) == 0) { 236 /* Erg, still trying, I guess... */ 237 mii->mii_media_active |= IFM_NONE; 238 return; 239 } 240 diag = PHY_READ(sc, MII_ACPHY_DIAG); 241 if (diag & AC_DIAG_SPEED) 242 mii->mii_media_active |= IFM_100_TX; 243 else 244 mii->mii_media_active |= IFM_10_T; 245 246 if (diag & AC_DIAG_DUPLEX) 247 mii->mii_media_active |= IFM_FDX; 248 else 249 mii->mii_media_active |= IFM_HDX; 250 } else 251 mii->mii_media_active = ife->ifm_media; 252} 253 254static void 255acphy_reset(struct mii_softc *sc) 256{ 257 258 mii_phy_reset(sc); 259 PHY_WRITE(sc, MII_ACPHY_INT, 0); 260} 261