jmphy.c revision 213893
1179335Syongari/*- 2179335Syongari * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org> 3179335Syongari * All rights reserved. 4179335Syongari * 5179335Syongari * Redistribution and use in source and binary forms, with or without 6179335Syongari * modification, are permitted provided that the following conditions 7179335Syongari * are met: 8179335Syongari * 1. Redistributions of source code must retain the above copyright 9179335Syongari * notice unmodified, this list of conditions, and the following 10179335Syongari * disclaimer. 11179335Syongari * 2. Redistributions in binary form must reproduce the above copyright 12179335Syongari * notice, this list of conditions and the following disclaimer in the 13179335Syongari * documentation and/or other materials provided with the distribution. 14179335Syongari * 15179335Syongari * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16179335Syongari * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17179335Syongari * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18179335Syongari * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19179335Syongari * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20179335Syongari * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21179335Syongari * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22179335Syongari * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23179335Syongari * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24179335Syongari * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25179335Syongari * SUCH DAMAGE. 26179335Syongari */ 27179335Syongari 28179335Syongari#include <sys/cdefs.h> 29179335Syongari__FBSDID("$FreeBSD: head/sys/dev/mii/jmphy.c 213893 2010-10-15 14:52:11Z marius $"); 30179335Syongari 31179335Syongari/* 32179335Syongari * Driver for the JMicron JMP211 10/100/1000, JMP202 10/100 PHY. 33179335Syongari */ 34179335Syongari 35179335Syongari#include <sys/param.h> 36179335Syongari#include <sys/systm.h> 37179335Syongari#include <sys/kernel.h> 38179335Syongari#include <sys/module.h> 39179335Syongari#include <sys/socket.h> 40179335Syongari#include <sys/bus.h> 41179335Syongari 42179335Syongari#include <net/if.h> 43179335Syongari#include <net/if_media.h> 44179335Syongari 45179335Syongari#include <dev/mii/mii.h> 46179335Syongari#include <dev/mii/miivar.h> 47179335Syongari#include "miidevs.h" 48179335Syongari 49179335Syongari#include <dev/mii/jmphyreg.h> 50179335Syongari 51179335Syongari#include "miibus_if.h" 52179335Syongari 53179335Syongaristatic int jmphy_probe(device_t); 54179335Syongaristatic int jmphy_attach(device_t); 55179335Syongaristatic void jmphy_reset(struct mii_softc *); 56179335Syongaristatic uint16_t jmphy_anar(struct ifmedia_entry *); 57179335Syongaristatic int jmphy_auto(struct mii_softc *, struct ifmedia_entry *); 58179335Syongari 59179335Syongaristruct jmphy_softc { 60179335Syongari struct mii_softc mii_sc; 61179335Syongari int mii_oui; 62179335Syongari int mii_model; 63179335Syongari int mii_rev; 64179335Syongari}; 65179335Syongari 66179335Syongaristatic device_method_t jmphy_methods[] = { 67179335Syongari /* Device interface. */ 68179335Syongari DEVMETHOD(device_probe, jmphy_probe), 69179335Syongari DEVMETHOD(device_attach, jmphy_attach), 70179335Syongari DEVMETHOD(device_detach, mii_phy_detach), 71179335Syongari DEVMETHOD(device_shutdown, bus_generic_shutdown), 72179335Syongari { NULL, NULL } 73179335Syongari}; 74179335Syongari 75179335Syongaristatic devclass_t jmphy_devclass; 76179335Syongaristatic driver_t jmphy_driver = { 77179335Syongari "jmphy", 78179335Syongari jmphy_methods, 79179335Syongari sizeof(struct jmphy_softc) 80179335Syongari}; 81179335Syongari 82179335SyongariDRIVER_MODULE(jmphy, miibus, jmphy_driver, jmphy_devclass, 0, 0); 83179335Syongari 84179335Syongaristatic int jmphy_service(struct mii_softc *, struct mii_data *, int); 85179335Syongaristatic void jmphy_status(struct mii_softc *); 86179335Syongari 87179335Syongaristatic const struct mii_phydesc jmphys[] = { 88179335Syongari MII_PHY_DESC(JMICRON, JMP202), 89179335Syongari MII_PHY_DESC(JMICRON, JMP211), 90179335Syongari MII_PHY_END 91179335Syongari}; 92179335Syongari 93179335Syongaristatic int 94179335Syongarijmphy_probe(device_t dev) 95179335Syongari{ 96179335Syongari 97179335Syongari return (mii_phy_dev_probe(dev, jmphys, BUS_PROBE_DEFAULT)); 98179335Syongari} 99179335Syongari 100179335Syongaristatic int 101179335Syongarijmphy_attach(device_t dev) 102179335Syongari{ 103179335Syongari struct jmphy_softc *jsc; 104179335Syongari struct mii_softc *sc; 105179335Syongari struct mii_attach_args *ma; 106179335Syongari struct mii_data *mii; 107179335Syongari 108179335Syongari jsc = device_get_softc(dev); 109179335Syongari sc = &jsc->mii_sc; 110179335Syongari ma = device_get_ivars(dev); 111179335Syongari sc->mii_dev = device_get_parent(dev); 112213229Smarius mii = ma->mii_data; 113179335Syongari LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 114179335Syongari 115213893Smarius sc->mii_flags = miibus_get_flags(dev); 116213364Smarius sc->mii_inst = mii->mii_instance++; 117179335Syongari sc->mii_phy = ma->mii_phyno; 118179335Syongari sc->mii_service = jmphy_service; 119179335Syongari sc->mii_pdata = mii; 120179335Syongari 121179335Syongari jsc->mii_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 122179335Syongari jsc->mii_model = MII_MODEL(ma->mii_id2); 123179335Syongari jsc->mii_rev = MII_REV(ma->mii_id2); 124179335Syongari if (bootverbose) 125179335Syongari device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n", 126179335Syongari jsc->mii_oui, jsc->mii_model, jsc->mii_rev); 127179335Syongari 128179335Syongari jmphy_reset(sc); 129179335Syongari 130179335Syongari sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 131179335Syongari if (sc->mii_capabilities & BMSR_EXTSTAT) 132179335Syongari sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 133179335Syongari device_printf(dev, " "); 134179335Syongari mii_phy_add_media(sc); 135179335Syongari printf("\n"); 136179335Syongari 137179335Syongari MIIBUS_MEDIAINIT(sc->mii_dev); 138213364Smarius return (0); 139179335Syongari} 140179335Syongari 141179335Syongaristatic int 142179335Syongarijmphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 143179335Syongari{ 144179335Syongari struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 145179335Syongari 146179335Syongari switch (cmd) { 147179335Syongari case MII_POLLSTAT: 148179335Syongari break; 149179335Syongari 150179335Syongari case MII_MEDIACHG: 151179335Syongari /* 152179335Syongari * If the interface is not up, don't do anything. 153179335Syongari */ 154179335Syongari if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 155179335Syongari break; 156179335Syongari 157179335Syongari if (jmphy_auto(sc, ife) != EJUSTRETURN) 158179335Syongari return (EINVAL); 159179335Syongari break; 160179335Syongari 161179335Syongari case MII_TICK: 162179335Syongari /* 163179335Syongari * Is the interface even up? 164179335Syongari */ 165179335Syongari if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 166179335Syongari return (0); 167179335Syongari 168179335Syongari /* 169179335Syongari * Only used for autonegotiation. 170179335Syongari */ 171179335Syongari if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 172179335Syongari sc->mii_ticks = 0; 173179335Syongari break; 174179335Syongari } 175179335Syongari 176179335Syongari /* Check for link. */ 177179335Syongari if ((PHY_READ(sc, JMPHY_SSR) & JMPHY_SSR_LINK_UP) != 0) { 178179335Syongari sc->mii_ticks = 0; 179179335Syongari break; 180179335Syongari } 181179335Syongari 182179335Syongari /* Announce link loss right after it happens. */ 183179335Syongari if (sc->mii_ticks++ == 0) 184179335Syongari break; 185179335Syongari if (sc->mii_ticks <= sc->mii_anegticks) 186179335Syongari return (0); 187179335Syongari 188179335Syongari sc->mii_ticks = 0; 189179335Syongari jmphy_auto(sc, ife); 190179335Syongari break; 191179335Syongari } 192179335Syongari 193179335Syongari /* Update the media status. */ 194179335Syongari jmphy_status(sc); 195179335Syongari 196179335Syongari /* Callback if something changed. */ 197179335Syongari mii_phy_update(sc, cmd); 198179335Syongari return (0); 199179335Syongari} 200179335Syongari 201179335Syongaristatic void 202179335Syongarijmphy_status(struct mii_softc *sc) 203179335Syongari{ 204179335Syongari struct mii_data *mii = sc->mii_pdata; 205179335Syongari int bmcr, ssr; 206179335Syongari 207179335Syongari mii->mii_media_status = IFM_AVALID; 208179335Syongari mii->mii_media_active = IFM_ETHER; 209179335Syongari 210179335Syongari ssr = PHY_READ(sc, JMPHY_SSR); 211179335Syongari if ((ssr & JMPHY_SSR_LINK_UP) != 0) 212179335Syongari mii->mii_media_status |= IFM_ACTIVE; 213179335Syongari 214179335Syongari bmcr = PHY_READ(sc, MII_BMCR); 215179335Syongari if ((bmcr & BMCR_ISO) != 0) { 216179335Syongari mii->mii_media_active |= IFM_NONE; 217179335Syongari mii->mii_media_status = 0; 218179335Syongari return; 219179335Syongari } 220179335Syongari 221179335Syongari if ((bmcr & BMCR_LOOP) != 0) 222179335Syongari mii->mii_media_active |= IFM_LOOP; 223179335Syongari 224179335Syongari if ((ssr & JMPHY_SSR_SPD_DPLX_RESOLVED) == 0) { 225179335Syongari /* Erg, still trying, I guess... */ 226179335Syongari mii->mii_media_active |= IFM_NONE; 227179335Syongari return; 228179335Syongari } 229179335Syongari 230179335Syongari switch ((ssr & JMPHY_SSR_SPEED_MASK)) { 231179335Syongari case JMPHY_SSR_SPEED_1000: 232179335Syongari mii->mii_media_active |= IFM_1000_T; 233179335Syongari /* 234179335Syongari * jmphy(4) got a valid link so reset mii_ticks. 235179335Syongari * Resetting mii_ticks is needed in order to 236179335Syongari * detect link loss after auto-negotiation. 237179335Syongari */ 238179335Syongari sc->mii_ticks = 0; 239179335Syongari break; 240179335Syongari case JMPHY_SSR_SPEED_100: 241179335Syongari mii->mii_media_active |= IFM_100_TX; 242179335Syongari sc->mii_ticks = 0; 243179335Syongari break; 244179335Syongari case JMPHY_SSR_SPEED_10: 245179335Syongari mii->mii_media_active |= IFM_10_T; 246179335Syongari sc->mii_ticks = 0; 247179335Syongari break; 248179335Syongari default: 249179335Syongari mii->mii_media_active |= IFM_NONE; 250179335Syongari return; 251179335Syongari } 252179335Syongari 253179335Syongari if ((ssr & JMPHY_SSR_DUPLEX) != 0) 254179335Syongari mii->mii_media_active |= IFM_FDX; 255179335Syongari else 256179335Syongari mii->mii_media_active |= IFM_HDX; 257179335Syongari /* XXX Flow-control. */ 258179335Syongari#ifdef notyet 259179335Syongari if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 260179335Syongari if ((PHY_READ(sc, MII_100T2SR) & GTSR_MS_RES) != 0) 261179335Syongari mii->mii_media_active |= IFM_ETH_MASTER; 262179335Syongari } 263179335Syongari#endif 264179335Syongari} 265179335Syongari 266179335Syongaristatic void 267179335Syongarijmphy_reset(struct mii_softc *sc) 268179335Syongari{ 269179335Syongari struct jmphy_softc *jsc; 270179335Syongari int i; 271179335Syongari 272179335Syongari jsc = (struct jmphy_softc *)sc; 273179335Syongari 274179335Syongari /* Disable sleep mode. */ 275179335Syongari PHY_WRITE(sc, JMPHY_TMCTL, 276179335Syongari PHY_READ(sc, JMPHY_TMCTL) & ~JMPHY_TMCTL_SLEEP_ENB); 277179335Syongari PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN); 278179335Syongari 279179335Syongari for (i = 0; i < 1000; i++) { 280179335Syongari DELAY(1); 281179335Syongari if ((PHY_READ(sc, MII_BMCR) & BMCR_RESET) == 0) 282179335Syongari break; 283179335Syongari } 284179335Syongari} 285179335Syongari 286179335Syongaristatic uint16_t 287179335Syongarijmphy_anar(struct ifmedia_entry *ife) 288179335Syongari{ 289179335Syongari uint16_t anar; 290179335Syongari 291179335Syongari anar = 0; 292179335Syongari switch (IFM_SUBTYPE(ife->ifm_media)) { 293179335Syongari case IFM_AUTO: 294179335Syongari anar |= ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10; 295179335Syongari break; 296179335Syongari case IFM_1000_T: 297179335Syongari break; 298179335Syongari case IFM_100_TX: 299179335Syongari anar |= ANAR_TX | ANAR_TX_FD; 300179335Syongari break; 301179335Syongari case IFM_10_T: 302179335Syongari anar |= ANAR_10 | ANAR_10_FD; 303179335Syongari break; 304179335Syongari default: 305179335Syongari break; 306179335Syongari } 307179335Syongari 308179335Syongari return (anar); 309179335Syongari} 310179335Syongari 311179335Syongaristatic int 312179335Syongarijmphy_auto(struct mii_softc *sc, struct ifmedia_entry *ife) 313179335Syongari{ 314179335Syongari uint16_t anar, bmcr, gig; 315179335Syongari 316179335Syongari gig = 0; 317179335Syongari bmcr = PHY_READ(sc, MII_BMCR); 318179335Syongari switch (IFM_SUBTYPE(ife->ifm_media)) { 319179335Syongari case IFM_AUTO: 320179335Syongari gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 321179335Syongari break; 322179335Syongari case IFM_1000_T: 323179335Syongari gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 324179335Syongari break; 325179335Syongari case IFM_100_TX: 326179335Syongari case IFM_10_T: 327179335Syongari break; 328179335Syongari case IFM_NONE: 329179335Syongari PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO | BMCR_PDOWN); 330179335Syongari return (EJUSTRETURN); 331179335Syongari default: 332179335Syongari return (EINVAL); 333179335Syongari } 334179335Syongari 335179335Syongari if ((ife->ifm_media & IFM_LOOP) != 0) 336179335Syongari bmcr |= BMCR_LOOP; 337179335Syongari 338179335Syongari anar = jmphy_anar(ife); 339179335Syongari /* XXX Always advertise pause capability. */ 340179335Syongari anar |= (3 << 10); 341179335Syongari 342179335Syongari if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) { 343179335Syongari#ifdef notyet 344179335Syongari struct mii_data *mii; 345179335Syongari 346179335Syongari mii = sc->mii_pdata; 347179335Syongari if ((mii->mii_media.ifm_media & IFM_ETH_MASTER) != 0) 348179335Syongari gig |= GTCR_MAN_MS | GTCR_MAN_ADV; 349179335Syongari#endif 350179335Syongari PHY_WRITE(sc, MII_100T2CR, gig); 351179335Syongari } 352179335Syongari PHY_WRITE(sc, MII_ANAR, anar | ANAR_CSMA); 353179335Syongari PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_AUTOEN | BMCR_STARTNEG); 354179335Syongari 355179335Syongari return (EJUSTRETURN); 356179335Syongari} 357