1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-NetBSD 3 * 4 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33/*- 34 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 */ 56 57#include <sys/cdefs.h> 58__FBSDID("$FreeBSD: releng/12.0/sys/dev/mii/acphy.c 326255 2017-11-27 14:52:40Z pfg $"); 59 60/* 61 * Driver for Altima AC101 10/100 PHY 62 */ 63 64#include <sys/param.h> 65#include <sys/systm.h> 66#include <sys/kernel.h> 67#include <sys/socket.h> 68#include <sys/errno.h> 69#include <sys/module.h> 70#include <sys/bus.h> 71 72#include <net/if.h> 73#include <net/if_media.h> 74 75#include <dev/mii/mii.h> 76#include <dev/mii/miivar.h> 77#include "miidevs.h" 78 79#include <dev/mii/acphyreg.h> 80 81#include "miibus_if.h" 82 83static int acphy_probe(device_t); 84static int acphy_attach(device_t); 85 86static device_method_t acphy_methods[] = { 87 /* device interface */ 88 DEVMETHOD(device_probe, acphy_probe), 89 DEVMETHOD(device_attach, acphy_attach), 90 DEVMETHOD(device_detach, mii_phy_detach), 91 DEVMETHOD(device_shutdown, bus_generic_shutdown), 92 DEVMETHOD_END 93}; 94 95static devclass_t acphy_devclass; 96 97static driver_t acphy_driver = { 98 "acphy", 99 acphy_methods, 100 sizeof(struct mii_softc) 101}; 102 103DRIVER_MODULE(acphy, miibus, acphy_driver, acphy_devclass, 0, 0); 104 105static int acphy_service(struct mii_softc *, struct mii_data *, int); 106static void acphy_reset(struct mii_softc *); 107static void acphy_status(struct mii_softc *); 108 109static const struct mii_phydesc acphys[] = { 110 MII_PHY_DESC(ALTIMA, AC101), 111 MII_PHY_DESC(ALTIMA, AC101L), 112 /* XXX This is reported to work, but it's not from any data sheet. */ 113 MII_PHY_DESC(ALTIMA, ACXXX), 114 MII_PHY_END 115}; 116 117static const struct mii_phy_funcs acphy_funcs = { 118 acphy_service, 119 acphy_status, 120 acphy_reset 121}; 122 123static int 124acphy_probe(device_t dev) 125{ 126 127 return (mii_phy_dev_probe(dev, acphys, BUS_PROBE_DEFAULT)); 128} 129 130static int 131acphy_attach(device_t dev) 132{ 133 struct mii_softc *sc; 134 135 sc = device_get_softc(dev); 136 137 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &acphy_funcs, 0); 138 139 PHY_RESET(sc); 140 141 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask; 142 device_printf(dev, " "); 143 144#define ADD(m) ifmedia_add(&sc->mii_pdata->mii_media, (m), 0, NULL) 145 if ((PHY_READ(sc, MII_ACPHY_MCTL) & AC_MCTL_FX_SEL) != 0) { 146 sc->mii_flags |= MIIF_HAVEFIBER; 147 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst)); 148 printf("100baseFX, "); 149 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst)); 150 printf("100baseFX-FDX, "); 151 } 152#undef ADD 153 154 mii_phy_add_media(sc); 155 printf("\n"); 156 157 MIIBUS_MEDIAINIT(sc->mii_dev); 158 return (0); 159} 160 161static int 162acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 163{ 164 int reg; 165 166 switch (cmd) { 167 case MII_POLLSTAT: 168 break; 169 170 case MII_MEDIACHG: 171 /* Wake & deisolate up if necessary */ 172 reg = PHY_READ(sc, MII_BMCR); 173 if (reg & (BMCR_ISO | BMCR_PDOWN)) 174 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 175 176 mii_phy_setmedia(sc); 177 break; 178 179 case MII_TICK: 180 /* 181 * This PHY's autonegotiation doesn't need to be kicked. 182 */ 183 break; 184 } 185 186 /* Update the media status. */ 187 PHY_STATUS(sc); 188 189 /* Callback if something changed. */ 190 mii_phy_update(sc, cmd); 191 return (0); 192} 193 194static void 195acphy_status(struct mii_softc *sc) 196{ 197 struct mii_data *mii = sc->mii_pdata; 198 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 199 int bmsr, bmcr, diag; 200 201 mii->mii_media_status = IFM_AVALID; 202 mii->mii_media_active = IFM_ETHER; 203 204 bmsr = PHY_READ(sc, MII_BMSR) | 205 PHY_READ(sc, MII_BMSR); 206 if (bmsr & BMSR_LINK) 207 mii->mii_media_status |= IFM_ACTIVE; 208 209 bmcr = PHY_READ(sc, MII_BMCR); 210 if (bmcr & BMCR_ISO) { 211 mii->mii_media_active |= IFM_NONE; 212 mii->mii_media_status = 0; 213 return; 214 } 215 216 if (bmcr & BMCR_LOOP) 217 mii->mii_media_active |= IFM_LOOP; 218 219 if (bmcr & BMCR_AUTOEN) { 220 if ((bmsr & BMSR_ACOMP) == 0) { 221 /* Erg, still trying, I guess... */ 222 mii->mii_media_active |= IFM_NONE; 223 return; 224 } 225 diag = PHY_READ(sc, MII_ACPHY_DIAG); 226 if (diag & AC_DIAG_SPEED) 227 mii->mii_media_active |= IFM_100_TX; 228 else 229 mii->mii_media_active |= IFM_10_T; 230 231 if (diag & AC_DIAG_DUPLEX) 232 mii->mii_media_active |= 233 IFM_FDX | mii_phy_flowstatus(sc); 234 else 235 mii->mii_media_active |= IFM_HDX; 236 } else 237 mii->mii_media_active = ife->ifm_media; 238} 239 240static void 241acphy_reset(struct mii_softc *sc) 242{ 243 244 mii_phy_reset(sc); 245 PHY_WRITE(sc, MII_ACPHY_INT, 0); 246} 247