diff options
Diffstat (limited to 'sys/dev/mii/acphy.c')
| -rw-r--r-- | sys/dev/mii/acphy.c | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/sys/dev/mii/acphy.c b/sys/dev/mii/acphy.c new file mode 100644 index 0000000..731209a --- /dev/null +++ b/sys/dev/mii/acphy.c @@ -0,0 +1,309 @@ +/*- + * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, + * NASA Ames Research Center. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Copyright (c) 1997 Manuel Bouyer. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Manuel Bouyer. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Driver for Altima AC101 10/100 PHY + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/socket.h> +#include <sys/errno.h> +#include <sys/module.h> +#include <sys/bus.h> + +#include <net/if.h> +#include <net/if_media.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> +#include <dev/mii/miidevs.h> + +#include <dev/mii/acphyreg.h> + +#include "miibus_if.h" + +#if !defined(lint) +static const char rcsid[] = + "$FreeBSD$"; +#endif + +static int acphy_probe(device_t); +static int acphy_attach(device_t); + +static device_method_t acphy_methods[] = { + /* device interface */ + DEVMETHOD(device_probe, acphy_probe), + DEVMETHOD(device_attach, acphy_attach), + DEVMETHOD(device_detach, mii_phy_detach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + { 0, 0 } +}; + +static devclass_t acphy_devclass; + +static driver_t acphy_driver = { + "acphy", + acphy_methods, + sizeof(struct mii_softc) +}; + +DRIVER_MODULE(acphy, miibus, acphy_driver, acphy_devclass, 0, 0); + +static int acphy_service(struct mii_softc *, struct mii_data *, int); +static void acphy_reset(struct mii_softc *); +static void acphy_status(struct mii_softc *); + +static int +acphy_probe(dev) + device_t dev; +{ + struct mii_attach_args *ma; + + ma = device_get_ivars(dev); + + if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && + MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101) { + device_set_desc(dev, MII_STR_xxALTIMA_AC101); + } else + return (ENXIO); + + return (0); +} + +static int +acphy_attach(dev) + device_t dev; +{ + struct mii_softc *sc; + struct mii_attach_args *ma; + struct mii_data *mii; + + sc = device_get_softc(dev); + ma = device_get_ivars(dev); + sc->mii_dev = device_get_parent(dev); + mii = device_get_softc(sc->mii_dev); + LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); + + sc->mii_inst = mii->mii_instance; + sc->mii_phy = ma->mii_phyno; + sc->mii_service = acphy_service; + sc->mii_pdata = mii; + sc->mii_flags |= MIIF_NOISOLATE; + + acphy_reset(sc); + + mii->mii_instance++; + + sc->mii_capabilities = + PHY_READ(sc, MII_BMSR) & ma->mii_capmask; + device_printf(dev, " "); + mii_add_media(sc); + printf("\n"); + + MIIBUS_MEDIAINIT(sc->mii_dev); + return (0); +} + +static int +acphy_service(sc, mii, cmd) + struct mii_softc *sc; + struct mii_data *mii; + int cmd; +{ + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int reg; + + /* + * If we're not selected, then do nothing, just isolate and power + * down, if changing media. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) { + if (cmd == MII_MEDIACHG) { + reg = PHY_READ(sc, MII_BMCR); + PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO | BMCR_PDOWN); + } + + return (0); + } + + switch (cmd) { + case MII_POLLSTAT: + break; + + case MII_MEDIACHG: + /* + * If the interface is not up, don't do anything. + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + break; + + /* Wake & deisolate up if necessary */ + reg = PHY_READ(sc, MII_BMCR); + if (reg & (BMCR_ISO | BMCR_PDOWN)) + PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN)); + + switch (IFM_SUBTYPE(ife->ifm_media)) { + case IFM_AUTO: + /* + * If we're already in auto mode, just return. + */ + if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) + return (0); + + (void) mii_phy_auto(sc); + break; + + default: + /* + * BMCR data is stored in the ifmedia entry. + */ + PHY_WRITE(sc, MII_ANAR, + mii_anar(ife->ifm_media)); + PHY_WRITE(sc, MII_BMCR, ife->ifm_data); + } + break; + + case MII_TICK: + /* + * Is the interface even up? + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + return (0); + + /* + * Only used for autonegotiation. + */ + if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) + break; + + /* + * This PHY's autonegotiation doesn't need to be kicked. + */ + break; + } + + /* Update the media status. */ + acphy_status(sc); + + /* Callback if something changed. */ + mii_phy_update(sc, cmd); + return (0); +} + +static void +acphy_status(sc) + struct mii_softc *sc; +{ + struct mii_data *mii = sc->mii_pdata; + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int bmsr, bmcr, diag; + + mii->mii_media_status = IFM_AVALID; + mii->mii_media_active = IFM_ETHER; + + bmsr = PHY_READ(sc, MII_BMSR) | + PHY_READ(sc, MII_BMSR); + if (bmsr & BMSR_LINK) + mii->mii_media_status |= IFM_ACTIVE; + + bmcr = PHY_READ(sc, MII_BMCR); + if (bmcr & BMCR_ISO) { + mii->mii_media_active |= IFM_NONE; + mii->mii_media_status = 0; + return; + } + + if (bmcr & BMCR_LOOP) + mii->mii_media_active |= IFM_LOOP; + + if (bmcr & BMCR_AUTOEN) { + if ((bmsr & BMSR_ACOMP) == 0) { + /* Erg, still trying, I guess... */ + mii->mii_media_active |= IFM_NONE; + return; + } + diag = PHY_READ(sc, MII_ACPHY_DIAG); + if (diag & AC_DIAG_SPEED) + mii->mii_media_active |= IFM_100_TX; + else + mii->mii_media_active |= IFM_10_T; + + if (diag & AC_DIAG_DUPLEX) + mii->mii_media_active |= IFM_FDX; + } else + mii->mii_media_active = ife->ifm_media; +} + +static void +acphy_reset(sc) + struct mii_softc *sc; +{ + + mii_phy_reset(sc); + PHY_WRITE(sc, MII_ACPHY_INT, 0); +} |
