diff options
author | imp <imp@FreeBSD.org> | 2009-03-30 16:01:09 +0000 |
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committer | imp <imp@FreeBSD.org> | 2009-03-30 16:01:09 +0000 |
commit | 763ef5e40ea78e430bd721f1dbf9bf6da1515053 (patch) | |
tree | 8c4bf5499dbf3b93757a504c504d0b4fc8986389 /sys/dev/mii | |
parent | f970c1363721e265332a7d2952f8f08a394d2051 (diff) | |
download | FreeBSD-src-763ef5e40ea78e430bd721f1dbf9bf6da1515053.zip FreeBSD-src-763ef5e40ea78e430bd721f1dbf9bf6da1515053.tar.gz |
New PHY driver for the internal PHY found in the AX88790. There's a
number of quirks for this device, and this implements just the basics.
The 2.5s powerdown recommended in the datasheet will be next...
Diffstat (limited to 'sys/dev/mii')
-rw-r--r-- | sys/dev/mii/axphy.c | 207 | ||||
-rw-r--r-- | sys/dev/mii/axphyreg.h | 28 |
2 files changed, 235 insertions, 0 deletions
diff --git a/sys/dev/mii/axphy.c b/sys/dev/mii/axphy.c new file mode 100644 index 0000000..21ac6f0 --- /dev/null +++ b/sys/dev/mii/axphy.c @@ -0,0 +1,207 @@ +/*- + * Copyright (c) 2009, M. Warner Losh + * 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 unmodified, 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * driver for internal phy in the AX88x9x chips. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/socket.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 "miidevs.h" + +#include <dev/mii/axphyreg.h> + +#include "miibus_if.h" + +static int axphy_probe(device_t dev); +static int axphy_attach(device_t dev); + +static device_method_t axphy_methods[] = { + /* device interface */ + DEVMETHOD(device_probe, axphy_probe), + DEVMETHOD(device_attach, axphy_attach), + DEVMETHOD(device_detach, mii_phy_detach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + { 0, 0 } +}; + +static devclass_t axphy_devclass; + +static driver_t axphy_driver = { + "axphy", + axphy_methods, + sizeof(struct mii_softc) +}; + +DRIVER_MODULE(axphy, miibus, axphy_driver, axphy_devclass, 0, 0); + +static int axphy_service(struct mii_softc *, struct mii_data *, int); +static void axphy_status(struct mii_softc *); + +static const struct mii_phydesc axphys[] = { + MII_PHY_DESC(ASIX, AX88X9X), + MII_PHY_END +}; + +static int +axphy_probe(device_t dev) +{ + + return (mii_phy_dev_probe(dev, axphys, BUS_PROBE_DEFAULT)); +} + +static int +axphy_attach(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 = axphy_service; + sc->mii_pdata = mii; + sc->mii_flags |= MIIF_NOISOLATE; + mii->mii_instance++; + + mii_phy_reset(sc); + + sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; + device_printf(dev, " "); + mii_phy_add_media(sc); + printf("\n"); + + MIIBUS_MEDIAINIT(sc->mii_dev); + mii_phy_setmedia(sc); + + return (0); +} + +static int +axphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) +{ + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int reg; + + switch (cmd) { + case MII_POLLSTAT: + if (IFM_INST(ife->ifm_media) != sc->mii_inst) + return (0); + break; + + case MII_MEDIACHG: + if (IFM_INST(ife->ifm_media) != sc->mii_inst) { + reg = PHY_READ(sc, MII_BMCR); + PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); + return (0); + } + + /* + * If the interface is not up, don't do anything. + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + break; + + mii_phy_setmedia(sc); + break; + + case MII_TICK: + if (IFM_INST(ife->ifm_media) != sc->mii_inst) + return (0); + if (mii_phy_tick(sc) == EJUSTRETURN) + return (0); + break; + } + + /* Update the media status. */ + axphy_status(sc); + + /* Callback if something changed. */ + mii_phy_update(sc, cmd); + return (0); +} + +static void +axphy_status(struct mii_softc *sc) +{ + struct mii_data *mii = sc->mii_pdata; + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int bmsr, bmcr; + + 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) { + mii->mii_media_active |= IFM_NONE; + return; + } + +#if 0 + scr = PHY_READ(sc, MII_AXPHY_SCR); + if (scr & SCR_S100) + mii->mii_media_active |= IFM_100_TX; + else + mii->mii_media_active |= IFM_10_T; + if (scr & SCR_FDX) + mii->mii_media_active |= IFM_FDX; +#endif + } else + mii->mii_media_active = ife->ifm_media; +} diff --git a/sys/dev/mii/axphyreg.h b/sys/dev/mii/axphyreg.h new file mode 100644 index 0000000..2d9e933 --- /dev/null +++ b/sys/dev/mii/axphyreg.h @@ -0,0 +1,28 @@ +/*- + * Copyright (c) 2009, M. Warner Losh + * 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 unmodified, 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ |