1170525Syongari/* $NetBSD: icsphy.c,v 1.41 2006/11/16 21:24:07 christos Exp $ */ 2170525Syongari 3170525Syongari/*- 4170525Syongari * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. 5170525Syongari * All rights reserved. 6170525Syongari * 7170525Syongari * This code is derived from software contributed to The NetBSD Foundation 8170525Syongari * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9170525Syongari * NASA Ames Research Center. 10170525Syongari * 11170525Syongari * Redistribution and use in source and binary forms, with or without 12170525Syongari * modification, are permitted provided that the following conditions 13170525Syongari * are met: 14170525Syongari * 1. Redistributions of source code must retain the above copyright 15170525Syongari * notice, this list of conditions and the following disclaimer. 16170525Syongari * 2. Redistributions in binary form must reproduce the above copyright 17170525Syongari * notice, this list of conditions and the following disclaimer in the 18170525Syongari * documentation and/or other materials provided with the distribution. 19170525Syongari * 20170525Syongari * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21170525Syongari * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22170525Syongari * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23170525Syongari * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24170525Syongari * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25170525Syongari * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26170525Syongari * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27170525Syongari * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28170525Syongari * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29170525Syongari * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30170525Syongari * POSSIBILITY OF SUCH DAMAGE. 31170525Syongari */ 32170525Syongari 33170525Syongari/* 34170525Syongari * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 35170525Syongari * 36170525Syongari * Redistribution and use in source and binary forms, with or without 37170525Syongari * modification, are permitted provided that the following conditions 38170525Syongari * are met: 39170525Syongari * 1. Redistributions of source code must retain the above copyright 40170525Syongari * notice, this list of conditions and the following disclaimer. 41170525Syongari * 2. Redistributions in binary form must reproduce the above copyright 42170525Syongari * notice, this list of conditions and the following disclaimer in the 43170525Syongari * documentation and/or other materials provided with the distribution. 44170525Syongari * 45170525Syongari * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46170525Syongari * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47170525Syongari * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48170525Syongari * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49170525Syongari * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50170525Syongari * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51170525Syongari * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52170525Syongari * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53170525Syongari * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54170525Syongari * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55170525Syongari */ 56170525Syongari 57170525Syongari#include <sys/cdefs.h> 58170525Syongari__FBSDID("$FreeBSD$"); 59170525Syongari 60170525Syongari/* 61170525Syongari * driver for Integrated Circuit Systems' ICS1889-1893 ethernet 10/100 PHY 62170525Syongari * datasheet from www.icst.com 63170525Syongari */ 64170525Syongari 65170525Syongari#include <sys/param.h> 66170525Syongari#include <sys/systm.h> 67170525Syongari#include <sys/kernel.h> 68170525Syongari#include <sys/module.h> 69170525Syongari#include <sys/socket.h> 70170525Syongari#include <sys/bus.h> 71170525Syongari 72170525Syongari#include <net/if.h> 73170525Syongari#include <net/if_media.h> 74170525Syongari 75170525Syongari#include <dev/mii/mii.h> 76170525Syongari#include <dev/mii/miivar.h> 77170525Syongari#include "miidevs.h" 78170525Syongari 79170525Syongari#include <dev/mii/icsphyreg.h> 80170525Syongari 81170525Syongari#include "miibus_if.h" 82170525Syongari 83170525Syongaristatic int icsphy_probe(device_t dev); 84170525Syongaristatic int icsphy_attach(device_t dev); 85170525Syongari 86170525Syongaristatic device_method_t icsphy_methods[] = { 87170525Syongari /* device interface */ 88170525Syongari DEVMETHOD(device_probe, icsphy_probe), 89170525Syongari DEVMETHOD(device_attach, icsphy_attach), 90170525Syongari DEVMETHOD(device_detach, mii_phy_detach), 91170525Syongari DEVMETHOD(device_shutdown, bus_generic_shutdown), 92229093Shselasky DEVMETHOD_END 93170525Syongari}; 94170525Syongari 95170525Syongaristatic devclass_t icsphy_devclass; 96170525Syongari 97170525Syongaristatic driver_t icsphy_driver = { 98170525Syongari "icsphy", 99170525Syongari icsphy_methods, 100221407Smarius sizeof(struct mii_softc) 101170525Syongari}; 102170525Syongari 103170525SyongariDRIVER_MODULE(icsphy, miibus, icsphy_driver, icsphy_devclass, 0, 0); 104170525Syongari 105170525Syongaristatic int icsphy_service(struct mii_softc *, struct mii_data *, int); 106170525Syongaristatic void icsphy_status(struct mii_softc *); 107170525Syongaristatic void icsphy_reset(struct mii_softc *); 108170525Syongari 109170525Syongaristatic const struct mii_phydesc icsphys[] = { 110221407Smarius MII_PHY_DESC(ICS, 1889), 111221407Smarius MII_PHY_DESC(ICS, 1890), 112221407Smarius MII_PHY_DESC(ICS, 1892), 113221407Smarius MII_PHY_DESC(ICS, 1893), 114170525Syongari MII_PHY_END 115170525Syongari}; 116170525Syongari 117221407Smariusstatic const struct mii_phy_funcs icsphy_funcs = { 118221407Smarius icsphy_service, 119221407Smarius icsphy_status, 120221407Smarius icsphy_reset 121221407Smarius}; 122221407Smarius 123170525Syongaristatic int 124170525Syongariicsphy_probe(device_t dev) 125170525Syongari{ 126170525Syongari 127170525Syongari return (mii_phy_dev_probe(dev, icsphys, BUS_PROBE_DEFAULT)); 128170525Syongari} 129170525Syongari 130170525Syongaristatic int 131170525Syongariicsphy_attach(device_t dev) 132170525Syongari{ 133170525Syongari 134221407Smarius mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE, 135221407Smarius &icsphy_funcs, 1); 136170525Syongari return (0); 137170525Syongari} 138170525Syongari 139170525Syongaristatic int 140170525Syongariicsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 141170525Syongari{ 142170525Syongari 143170525Syongari switch (cmd) { 144170525Syongari case MII_POLLSTAT: 145170525Syongari break; 146170525Syongari 147170525Syongari case MII_MEDIACHG: 148170525Syongari /* 149170525Syongari * If the interface is not up, don't do anything. 150170525Syongari */ 151170525Syongari if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 152170525Syongari break; 153170525Syongari 154170525Syongari mii_phy_setmedia(sc); 155170525Syongari break; 156170525Syongari 157170525Syongari case MII_TICK: 158170525Syongari if (mii_phy_tick(sc) == EJUSTRETURN) 159170525Syongari return (0); 160170525Syongari break; 161170525Syongari } 162170525Syongari 163170525Syongari /* Update the media status. */ 164221407Smarius PHY_STATUS(sc); 165170525Syongari 166170525Syongari /* Callback if something changed. */ 167170525Syongari mii_phy_update(sc, cmd); 168170525Syongari return (0); 169170525Syongari} 170170525Syongari 171170525Syongaristatic void 172170525Syongariicsphy_status(struct mii_softc *sc) 173170525Syongari{ 174170525Syongari struct mii_data *mii = sc->mii_pdata; 175170525Syongari struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 176170525Syongari int bmcr, qpr; 177170525Syongari 178170525Syongari mii->mii_media_status = IFM_AVALID; 179170525Syongari mii->mii_media_active = IFM_ETHER; 180170525Syongari 181170525Syongari /* 182170525Syongari * Don't get link from the BMSR. It's available in the QPR, 183170525Syongari * and we have to read it twice to unlatch it anyhow. This 184170525Syongari * gives us fewer register reads. 185170525Syongari */ 186170525Syongari qpr = PHY_READ(sc, MII_ICSPHY_QPR); /* unlatch */ 187170525Syongari qpr = PHY_READ(sc, MII_ICSPHY_QPR); /* real value */ 188170525Syongari 189170525Syongari if (qpr & QPR_LINK) 190170525Syongari mii->mii_media_status |= IFM_ACTIVE; 191170525Syongari 192170525Syongari bmcr = PHY_READ(sc, MII_BMCR); 193170525Syongari if (bmcr & BMCR_ISO) { 194170525Syongari mii->mii_media_active |= IFM_NONE; 195170525Syongari mii->mii_media_status = 0; 196170525Syongari return; 197170525Syongari } 198170525Syongari 199170525Syongari if (bmcr & BMCR_LOOP) 200170525Syongari mii->mii_media_active |= IFM_LOOP; 201170525Syongari 202170525Syongari if (bmcr & BMCR_AUTOEN) { 203170525Syongari if ((qpr & QPR_ACOMP) == 0) { 204170525Syongari /* Erg, still trying, I guess... */ 205170525Syongari mii->mii_media_active |= IFM_NONE; 206170525Syongari return; 207170525Syongari } 208170525Syongari if (qpr & QPR_SPEED) 209170525Syongari mii->mii_media_active |= IFM_100_TX; 210170525Syongari else 211170525Syongari mii->mii_media_active |= IFM_10_T; 212170525Syongari if (qpr & QPR_FDX) 213221407Smarius mii->mii_media_active |= 214221407Smarius IFM_FDX | mii_phy_flowstatus(sc); 215170525Syongari else 216170525Syongari mii->mii_media_active |= IFM_HDX; 217170525Syongari } else 218170525Syongari mii->mii_media_active = ife->ifm_media; 219170525Syongari} 220170525Syongari 221170525Syongaristatic void 222170525Syongariicsphy_reset(struct mii_softc *sc) 223170525Syongari{ 224170525Syongari 225170525Syongari mii_phy_reset(sc); 226170525Syongari /* set powerdown feature */ 227221407Smarius switch (sc->mii_mpd_model) { 228221407Smarius case MII_MODEL_ICS_1890: 229221407Smarius case MII_MODEL_ICS_1893: 230170525Syongari PHY_WRITE(sc, MII_ICSPHY_ECR2, ECR2_100AUTOPWRDN); 231170525Syongari break; 232221407Smarius case MII_MODEL_ICS_1892: 233170525Syongari PHY_WRITE(sc, MII_ICSPHY_ECR2, 234170525Syongari ECR2_10AUTOPWRDN|ECR2_100AUTOPWRDN); 235170525Syongari break; 236170525Syongari default: 237170525Syongari /* 1889 have no ECR2 */ 238170525Syongari break; 239170525Syongari } 240170525Syongari /* 241170525Syongari * There is no description that the reset do auto-negotiation in the 242170525Syongari * data sheet. 243170525Syongari */ 244170525Syongari PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_STARTNEG|BMCR_FDX); 245170525Syongari} 246