acphy.c revision 331722
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: stable/11/sys/dev/mii/acphy.c 331722 2018-03-29 02:50:57Z eadler $"); 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 DEVMETHOD_END 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(ALTIMA, AC101), 109 MII_PHY_DESC(ALTIMA, AC101L), 110 /* XXX This is reported to work, but it's not from any data sheet. */ 111 MII_PHY_DESC(ALTIMA, ACXXX), 112 MII_PHY_END 113}; 114 115static const struct mii_phy_funcs acphy_funcs = { 116 acphy_service, 117 acphy_status, 118 acphy_reset 119}; 120 121static int 122acphy_probe(device_t dev) 123{ 124 125 return (mii_phy_dev_probe(dev, acphys, BUS_PROBE_DEFAULT)); 126} 127 128static int 129acphy_attach(device_t dev) 130{ 131 struct mii_softc *sc; 132 133 sc = device_get_softc(dev); 134 135 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &acphy_funcs, 0); 136 137 PHY_RESET(sc); 138 139 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask; 140 device_printf(dev, " "); 141 142#define ADD(m) ifmedia_add(&sc->mii_pdata->mii_media, (m), 0, NULL) 143 if ((PHY_READ(sc, MII_ACPHY_MCTL) & AC_MCTL_FX_SEL) != 0) { 144 sc->mii_flags |= MIIF_HAVEFIBER; 145 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst)); 146 printf("100baseFX, "); 147 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst)); 148 printf("100baseFX-FDX, "); 149 } 150#undef ADD 151 152 mii_phy_add_media(sc); 153 printf("\n"); 154 155 MIIBUS_MEDIAINIT(sc->mii_dev); 156 return (0); 157} 158 159static int 160acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 161{ 162 int reg; 163 164 switch (cmd) { 165 case MII_POLLSTAT: 166 break; 167 168 case MII_MEDIACHG: 169 /* Wake & deisolate up if necessary */ 170 reg = PHY_READ(sc, MII_BMCR); 171 if (reg & (BMCR_ISO | BMCR_PDOWN)) 172 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 173 174 mii_phy_setmedia(sc); 175 break; 176 177 case MII_TICK: 178 /* 179 * This PHY's autonegotiation doesn't need to be kicked. 180 */ 181 break; 182 } 183 184 /* Update the media status. */ 185 PHY_STATUS(sc); 186 187 /* Callback if something changed. */ 188 mii_phy_update(sc, cmd); 189 return (0); 190} 191 192static void 193acphy_status(struct mii_softc *sc) 194{ 195 struct mii_data *mii = sc->mii_pdata; 196 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 197 int bmsr, bmcr, diag; 198 199 mii->mii_media_status = IFM_AVALID; 200 mii->mii_media_active = IFM_ETHER; 201 202 bmsr = PHY_READ(sc, MII_BMSR) | 203 PHY_READ(sc, MII_BMSR); 204 if (bmsr & BMSR_LINK) 205 mii->mii_media_status |= IFM_ACTIVE; 206 207 bmcr = PHY_READ(sc, MII_BMCR); 208 if (bmcr & BMCR_ISO) { 209 mii->mii_media_active |= IFM_NONE; 210 mii->mii_media_status = 0; 211 return; 212 } 213 214 if (bmcr & BMCR_LOOP) 215 mii->mii_media_active |= IFM_LOOP; 216 217 if (bmcr & BMCR_AUTOEN) { 218 if ((bmsr & BMSR_ACOMP) == 0) { 219 /* Erg, still trying, I guess... */ 220 mii->mii_media_active |= IFM_NONE; 221 return; 222 } 223 diag = PHY_READ(sc, MII_ACPHY_DIAG); 224 if (diag & AC_DIAG_SPEED) 225 mii->mii_media_active |= IFM_100_TX; 226 else 227 mii->mii_media_active |= IFM_10_T; 228 229 if (diag & AC_DIAG_DUPLEX) 230 mii->mii_media_active |= 231 IFM_FDX | mii_phy_flowstatus(sc); 232 else 233 mii->mii_media_active |= IFM_HDX; 234 } else 235 mii->mii_media_active = ife->ifm_media; 236} 237 238static void 239acphy_reset(struct mii_softc *sc) 240{ 241 242 mii_phy_reset(sc); 243 PHY_WRITE(sc, MII_ACPHY_INT, 0); 244} 245