gentbi.c revision 160636
1160636Syongari/* $NetBSD: gentbi.c,v 1.15 2006/03/29 07:05:24 thorpej Exp $ */ 2160636Syongari 3160636Syongari/*- 4160636Syongari * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc. 5160636Syongari * All rights reserved. 6160636Syongari * 7160636Syongari * This code is derived from software contributed to The NetBSD Foundation 8160636Syongari * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9160636Syongari * NASA Ames Research Center. 10160636Syongari * 11160636Syongari * Redistribution and use in source and binary forms, with or without 12160636Syongari * modification, are permitted provided that the following conditions 13160636Syongari * are met: 14160636Syongari * 1. Redistributions of source code must retain the above copyright 15160636Syongari * notice, this list of conditions and the following disclaimer. 16160636Syongari * 2. Redistributions in binary form must reproduce the above copyright 17160636Syongari * notice, this list of conditions and the following disclaimer in the 18160636Syongari * documentation and/or other materials provided with the distribution. 19160636Syongari * 3. All advertising materials mentioning features or use of this software 20160636Syongari * must display the following acknowledgement: 21160636Syongari * This product includes software developed by the NetBSD 22160636Syongari * Foundation, Inc. and its contributors. 23160636Syongari * 4. Neither the name of The NetBSD Foundation nor the names of its 24160636Syongari * contributors may be used to endorse or promote products derived 25160636Syongari * from this software without specific prior written permission. 26160636Syongari * 27160636Syongari * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28160636Syongari * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29160636Syongari * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30160636Syongari * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31160636Syongari * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32160636Syongari * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33160636Syongari * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34160636Syongari * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35160636Syongari * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36160636Syongari * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37160636Syongari * POSSIBILITY OF SUCH DAMAGE. 38160636Syongari */ 39160636Syongari 40160636Syongari/* 41160636Syongari * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 42160636Syongari * 43160636Syongari * Redistribution and use in source and binary forms, with or without 44160636Syongari * modification, are permitted provided that the following conditions 45160636Syongari * are met: 46160636Syongari * 1. Redistributions of source code must retain the above copyright 47160636Syongari * notice, this list of conditions and the following disclaimer. 48160636Syongari * 2. Redistributions in binary form must reproduce the above copyright 49160636Syongari * notice, this list of conditions and the following disclaimer in the 50160636Syongari * documentation and/or other materials provided with the distribution. 51160636Syongari * 3. All advertising materials mentioning features or use of this software 52160636Syongari * must display the following acknowledgement: 53160636Syongari * This product includes software developed by Manuel Bouyer. 54160636Syongari * 4. The name of the author may not be used to endorse or promote products 55160636Syongari * derived from this software without specific prior written permission. 56160636Syongari * 57160636Syongari * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58160636Syongari * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59160636Syongari * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60160636Syongari * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61160636Syongari * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62160636Syongari * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63160636Syongari * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64160636Syongari * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65160636Syongari * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66160636Syongari * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67160636Syongari */ 68160636Syongari 69160636Syongari/* 70160636Syongari * Driver for generic ten-bit (1000BASE-SX) interfaces, built in to 71160636Syongari * many Gigabit Ethernet chips. 72160636Syongari * 73160636Syongari * All we have to do here is correctly report speed and duplex. 74160636Syongari */ 75160636Syongari 76160636Syongari#include <sys/cdefs.h> 77160636Syongari__FBSDID("$FreeBSD: head/sys/dev/mii/gentbi.c 160636 2006-07-25 00:08:32Z yongari $"); 78160636Syongari 79160636Syongari/* 80160636Syongari * Driver for generic unknown ten-bit interfaces(1000BASE-{LX,SX} 81160636Syongari * fiber interfaces). 82160636Syongari */ 83160636Syongari 84160636Syongari#include <sys/param.h> 85160636Syongari#include <sys/systm.h> 86160636Syongari#include <sys/kernel.h> 87160636Syongari#include <sys/module.h> 88160636Syongari#include <sys/socket.h> 89160636Syongari#include <sys/errno.h> 90160636Syongari#include <sys/bus.h> 91160636Syongari 92160636Syongari#include <net/if.h> 93160636Syongari#include <net/if_media.h> 94160636Syongari 95160636Syongari#include <dev/mii/mii.h> 96160636Syongari#include <dev/mii/miivar.h> 97160636Syongari#include "miidevs.h" 98160636Syongari 99160636Syongari#include "miibus_if.h" 100160636Syongari 101160636Syongaristatic int gentbi_probe(device_t); 102160636Syongaristatic int gentbi_attach(device_t); 103160636Syongari 104160636Syongaristatic device_method_t gentbi_methods[] = { 105160636Syongari /* device interface */ 106160636Syongari DEVMETHOD(device_probe, gentbi_probe), 107160636Syongari DEVMETHOD(device_attach, gentbi_attach), 108160636Syongari DEVMETHOD(device_detach, mii_phy_detach), 109160636Syongari DEVMETHOD(device_shutdown, bus_generic_shutdown), 110160636Syongari {0, 0} 111160636Syongari}; 112160636Syongari 113160636Syongaristatic devclass_t gentbi_devclass; 114160636Syongari 115160636Syongaristatic driver_t gentbi_driver = { 116160636Syongari "gentbi", 117160636Syongari gentbi_methods, 118160636Syongari sizeof(struct mii_softc) 119160636Syongari}; 120160636Syongari 121160636SyongariDRIVER_MODULE(gentbi, miibus, gentbi_driver, gentbi_devclass, 0, 0); 122160636Syongari 123160636Syongaristatic int gentbi_service(struct mii_softc *, struct mii_data *, int); 124160636Syongaristatic void gentbi_status(struct mii_softc *); 125160636Syongari 126160636Syongaristatic int 127160636Syongarigentbi_probe(device_t dev) 128160636Syongari{ 129160636Syongari device_t parent; 130160636Syongari struct mii_attach_args *ma; 131160636Syongari int bmsr, extsr; 132160636Syongari 133160636Syongari parent = device_get_parent(dev); 134160636Syongari ma = device_get_ivars(dev); 135160636Syongari 136160636Syongari /* 137160636Syongari * We match as a generic TBI if: 138160636Syongari * 139160636Syongari * - There is no media in the BMSR. 140160636Syongari * - EXTSR has only 1000X. 141160636Syongari */ 142160636Syongari bmsr = MIIBUS_READREG(parent, ma->mii_phyno, MII_BMSR); 143160636Syongari if ((bmsr & BMSR_EXTSTAT) == 0 || (bmsr & BMSR_MEDIAMASK) != 0) 144160636Syongari return (ENXIO); 145160636Syongari 146160636Syongari extsr = MIIBUS_READREG(parent, ma->mii_phyno, MII_EXTSR); 147160636Syongari if (extsr & (EXTSR_1000TFDX|EXTSR_1000THDX)) 148160636Syongari return (ENXIO); 149160636Syongari 150160636Syongari if (extsr & (EXTSR_1000XFDX|EXTSR_1000XHDX)) { 151160636Syongari /* 152160636Syongari * We think this is a generic TBI. Return a match 153160636Syongari * priority higher than ukphy, but lower than what 154160636Syongari * specific drivers will return. 155160636Syongari */ 156160636Syongari device_set_desc(dev, "Generic ten-bit interface"); 157160636Syongari return (BUS_PROBE_LOW_PRIORITY); 158160636Syongari } 159160636Syongari 160160636Syongari return (ENXIO); 161160636Syongari} 162160636Syongari 163160636Syongaristatic int 164160636Syongarigentbi_attach(device_t dev) 165160636Syongari{ 166160636Syongari struct mii_softc *sc; 167160636Syongari struct mii_attach_args *ma; 168160636Syongari struct mii_data *mii; 169160636Syongari 170160636Syongari sc = device_get_softc(dev); 171160636Syongari ma = device_get_ivars(dev); 172160636Syongari sc->mii_dev = device_get_parent(dev); 173160636Syongari mii = device_get_softc(sc->mii_dev); 174160636Syongari LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 175160636Syongari 176160636Syongari if (bootverbose) 177160636Syongari device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n", 178160636Syongari MII_OUI(ma->mii_id1, ma->mii_id2), 179160636Syongari MII_MODEL(ma->mii_id2), MII_REV(ma->mii_id2)); 180160636Syongari 181160636Syongari sc->mii_inst = mii->mii_instance; 182160636Syongari sc->mii_phy = ma->mii_phyno; 183160636Syongari sc->mii_service = gentbi_service; 184160636Syongari sc->mii_pdata = mii; 185160636Syongari sc->mii_flags |= MIIF_NOISOLATE; 186160636Syongari 187160636Syongari mii->mii_instance++; 188160636Syongari 189160636Syongari mii_phy_reset(sc); 190160636Syongari 191160636Syongari /* 192160636Syongari * Mask out all media in the BMSR. We only are really interested 193160636Syongari * in "auto". 194160636Syongari */ 195160636Syongari sc->mii_capabilities = 196160636Syongari PHY_READ(sc, MII_BMSR) & ma->mii_capmask & ~BMSR_MEDIAMASK; 197160636Syongari if (sc->mii_capabilities & BMSR_EXTSTAT) 198160636Syongari sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 199160636Syongari 200160636Syongari device_printf(dev, " "); 201160636Syongari if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 202160636Syongari (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 203160636Syongari printf("no media present"); 204160636Syongari else 205160636Syongari mii_phy_add_media(sc); 206160636Syongari printf("\n"); 207160636Syongari 208160636Syongari return (0); 209160636Syongari} 210160636Syongari 211160636Syongaristatic int 212160636Syongarigentbi_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 213160636Syongari{ 214160636Syongari struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 215160636Syongari int reg; 216160636Syongari 217160636Syongari switch (cmd) { 218160636Syongari case MII_POLLSTAT: 219160636Syongari /* 220160636Syongari * If we're not polling our PHY instance, just return. 221160636Syongari */ 222160636Syongari if (IFM_INST(ife->ifm_media) != sc->mii_inst) 223160636Syongari return (0); 224160636Syongari break; 225160636Syongari 226160636Syongari case MII_MEDIACHG: 227160636Syongari /* 228160636Syongari * If the media indicates a different PHY instance, 229160636Syongari * isolate ourselves. 230160636Syongari */ 231160636Syongari if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 232160636Syongari reg = PHY_READ(sc, MII_BMCR); 233160636Syongari PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 234160636Syongari return (0); 235160636Syongari } 236160636Syongari 237160636Syongari /* 238160636Syongari * If the interface is not up, don't do anything. 239160636Syongari */ 240160636Syongari if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 241160636Syongari break; 242160636Syongari 243160636Syongari mii_phy_setmedia(sc); 244160636Syongari break; 245160636Syongari 246160636Syongari case MII_TICK: 247160636Syongari /* 248160636Syongari * If we're not currently selected, just return. 249160636Syongari */ 250160636Syongari if (IFM_INST(ife->ifm_media) != sc->mii_inst) 251160636Syongari return (0); 252160636Syongari 253160636Syongari if (mii_phy_tick(sc) == EJUSTRETURN) 254160636Syongari return (0); 255160636Syongari break; 256160636Syongari } 257160636Syongari 258160636Syongari /* Update the media status. */ 259160636Syongari gentbi_status(sc); 260160636Syongari 261160636Syongari /* Callback if something changed. */ 262160636Syongari mii_phy_update(sc, cmd); 263160636Syongari return (0); 264160636Syongari} 265160636Syongari 266160636Syongaristatic void 267160636Syongarigentbi_status(struct mii_softc *sc) 268160636Syongari{ 269160636Syongari struct mii_data *mii = sc->mii_pdata; 270160636Syongari struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 271160636Syongari int bmsr, bmcr, anlpar; 272160636Syongari 273160636Syongari mii->mii_media_status = IFM_AVALID; 274160636Syongari mii->mii_media_active = IFM_ETHER; 275160636Syongari 276160636Syongari bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 277160636Syongari 278160636Syongari if (bmsr & BMSR_LINK) 279160636Syongari mii->mii_media_status |= IFM_ACTIVE; 280160636Syongari 281160636Syongari bmcr = PHY_READ(sc, MII_BMCR); 282160636Syongari if (bmcr & BMCR_ISO) { 283160636Syongari mii->mii_media_active |= IFM_NONE; 284160636Syongari mii->mii_media_status = 0; 285160636Syongari return; 286160636Syongari } 287160636Syongari 288160636Syongari if (bmcr & BMCR_LOOP) 289160636Syongari mii->mii_media_active |= IFM_LOOP; 290160636Syongari 291160636Syongari if (bmcr & BMCR_AUTOEN) { 292160636Syongari /* 293160636Syongari * The media status bits are only valid of autonegotiation 294160636Syongari * has completed (or it's disabled). 295160636Syongari */ 296160636Syongari if ((bmsr & BMSR_ACOMP) == 0) { 297160636Syongari /* Erg, still trying, I guess... */ 298160636Syongari mii->mii_media_active |= IFM_NONE; 299160636Syongari return; 300160636Syongari } 301160636Syongari 302160636Syongari /* 303160636Syongari * The media is always 1000baseSX. Check the ANLPAR to 304160636Syongari * see if we're doing full-duplex. 305160636Syongari */ 306160636Syongari mii->mii_media_active |= IFM_1000_SX; 307160636Syongari 308160636Syongari anlpar = PHY_READ(sc, MII_ANLPAR); 309160636Syongari if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0 && 310160636Syongari (anlpar & ANLPAR_X_FD) != 0) 311160636Syongari mii->mii_media_active |= IFM_FDX; 312160636Syongari } else 313160636Syongari mii->mii_media_active = ife->ifm_media; 314160636Syongari} 315