1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 /* 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 81 static int acphy_probe(device_t); 82 static int acphy_attach(device_t); 83 84 static 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 93 static driver_t acphy_driver = { 94 "acphy", 95 acphy_methods, 96 sizeof(struct mii_softc) 97 }; 98 99 DRIVER_MODULE(acphy, miibus, acphy_driver, 0, 0); 100 101 static int acphy_service(struct mii_softc *, struct mii_data *, int); 102 static void acphy_reset(struct mii_softc *); 103 static void acphy_status(struct mii_softc *); 104 105 static const struct mii_phydesc acphys[] = { 106 MII_PHY_DESC(ALTIMA, AC101), 107 MII_PHY_DESC(ALTIMA, AC101L), 108 /* XXX This is reported to work, but it's not from any data sheet. */ 109 MII_PHY_DESC(ALTIMA, ACXXX), 110 MII_PHY_END 111 }; 112 113 static const struct mii_phy_funcs acphy_funcs = { 114 acphy_service, 115 acphy_status, 116 acphy_reset 117 }; 118 119 static int 120 acphy_probe(device_t dev) 121 { 122 123 return (mii_phy_dev_probe(dev, acphys, BUS_PROBE_DEFAULT)); 124 } 125 126 static int 127 acphy_attach(device_t dev) 128 { 129 struct mii_softc *sc; 130 131 sc = device_get_softc(dev); 132 133 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &acphy_funcs, 0); 134 135 PHY_RESET(sc); 136 137 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask; 138 device_printf(dev, " "); 139 140 #define ADD(m) ifmedia_add(&sc->mii_pdata->mii_media, (m), 0, NULL) 141 if ((PHY_READ(sc, MII_ACPHY_MCTL) & AC_MCTL_FX_SEL) != 0) { 142 sc->mii_flags |= MIIF_HAVEFIBER; 143 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst)); 144 printf("100baseFX, "); 145 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst)); 146 printf("100baseFX-FDX, "); 147 } 148 #undef ADD 149 150 mii_phy_add_media(sc); 151 printf("\n"); 152 153 MIIBUS_MEDIAINIT(sc->mii_dev); 154 return (0); 155 } 156 157 static int 158 acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 159 { 160 int reg; 161 162 switch (cmd) { 163 case MII_POLLSTAT: 164 break; 165 166 case MII_MEDIACHG: 167 /* Wake & deisolate up if necessary */ 168 reg = PHY_READ(sc, MII_BMCR); 169 if (reg & (BMCR_ISO | BMCR_PDOWN)) 170 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); 171 172 mii_phy_setmedia(sc); 173 break; 174 175 case MII_TICK: 176 /* 177 * This PHY's autonegotiation doesn't need to be kicked. 178 */ 179 break; 180 } 181 182 /* Update the media status. */ 183 PHY_STATUS(sc); 184 185 /* Callback if something changed. */ 186 mii_phy_update(sc, cmd); 187 return (0); 188 } 189 190 static void 191 acphy_status(struct mii_softc *sc) 192 { 193 struct mii_data *mii = sc->mii_pdata; 194 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 195 int bmsr, bmcr, diag; 196 197 mii->mii_media_status = IFM_AVALID; 198 mii->mii_media_active = IFM_ETHER; 199 200 bmsr = PHY_READ(sc, MII_BMSR) | 201 PHY_READ(sc, MII_BMSR); 202 if (bmsr & BMSR_LINK) 203 mii->mii_media_status |= IFM_ACTIVE; 204 205 bmcr = PHY_READ(sc, MII_BMCR); 206 if (bmcr & BMCR_ISO) { 207 mii->mii_media_active |= IFM_NONE; 208 mii->mii_media_status = 0; 209 return; 210 } 211 212 if (bmcr & BMCR_LOOP) 213 mii->mii_media_active |= IFM_LOOP; 214 215 if (bmcr & BMCR_AUTOEN) { 216 if ((bmsr & BMSR_ACOMP) == 0) { 217 /* Erg, still trying, I guess... */ 218 mii->mii_media_active |= IFM_NONE; 219 return; 220 } 221 diag = PHY_READ(sc, MII_ACPHY_DIAG); 222 if (diag & AC_DIAG_SPEED) 223 mii->mii_media_active |= IFM_100_TX; 224 else 225 mii->mii_media_active |= IFM_10_T; 226 227 if (diag & AC_DIAG_DUPLEX) 228 mii->mii_media_active |= 229 IFM_FDX | mii_phy_flowstatus(sc); 230 else 231 mii->mii_media_active |= IFM_HDX; 232 } else 233 mii->mii_media_active = ife->ifm_media; 234 } 235 236 static void 237 acphy_reset(struct mii_softc *sc) 238 { 239 240 mii_phy_reset(sc); 241 PHY_WRITE(sc, MII_ACPHY_INT, 0); 242 } 243