diff options
author | Pyun YongHyeon <yongari@FreeBSD.org> | 2007-06-11 02:04:50 +0000 |
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committer | Pyun YongHyeon <yongari@FreeBSD.org> | 2007-06-11 02:04:50 +0000 |
commit | 78679427f6f94a7afd5c82d12272a49ee63353da (patch) | |
tree | 3d5f64ecfa91eb33ee46d346b548db18f061729e /sys/dev/mii/icsphy.c | |
parent | fcb11bb3f95c6cbf4823a49bbecb65c6cc88073c (diff) | |
download | src-78679427f6f94a7afd5c82d12272a49ee63353da.tar.gz src-78679427f6f94a7afd5c82d12272a49ee63353da.zip |
Add icsphy(4), Integrated Circuit Systems PHY driver, ported from
NetBSD. ATM the only consumer of the PHY is XBox with nfe(4) driver.
Submitted by: Ed Schouten <ed@fxq.nl>
Tested by: Ed Schouten <ed@fxq.nl>
Notes
Notes:
svn path=/head/; revision=170525
Diffstat (limited to 'sys/dev/mii/icsphy.c')
-rw-r--r-- | sys/dev/mii/icsphy.c | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/sys/dev/mii/icsphy.c b/sys/dev/mii/icsphy.c new file mode 100644 index 000000000000..9c1c35119243 --- /dev/null +++ b/sys/dev/mii/icsphy.c @@ -0,0 +1,302 @@ +/* $NetBSD: icsphy.c,v 1.41 2006/11/16 21:24:07 christos Exp $ */ + +/*- + * Copyright (c) 1998, 1999, 2000 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * driver for Integrated Circuit Systems' ICS1889-1893 ethernet 10/100 PHY + * datasheet from www.icst.com + */ + +#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/icsphyreg.h> + +#include "miibus_if.h" + +static int icsphy_probe(device_t dev); +static int icsphy_attach(device_t dev); + +struct icsphy_softc { + struct mii_softc mii_sc; + int mii_model; +}; + +static device_method_t icsphy_methods[] = { + /* device interface */ + DEVMETHOD(device_probe, icsphy_probe), + DEVMETHOD(device_attach, icsphy_attach), + DEVMETHOD(device_detach, mii_phy_detach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + { 0, 0 } +}; + +static devclass_t icsphy_devclass; + +static driver_t icsphy_driver = { + "icsphy", + icsphy_methods, + sizeof(struct icsphy_softc) +}; + +DRIVER_MODULE(icsphy, miibus, icsphy_driver, icsphy_devclass, 0, 0); + +static int icsphy_service(struct mii_softc *, struct mii_data *, int); +static void icsphy_status(struct mii_softc *); +static void icsphy_reset(struct mii_softc *); + +static const struct mii_phydesc icsphys[] = { + MII_PHY_DESC(xxICS, 1889), + MII_PHY_DESC(xxICS, 1890), + MII_PHY_DESC(xxICS, 1892), + MII_PHY_DESC(xxICS, 1893), + MII_PHY_END +}; + +static int +icsphy_probe(device_t dev) +{ + + return (mii_phy_dev_probe(dev, icsphys, BUS_PROBE_DEFAULT)); +} + +static int +icsphy_attach(device_t dev) +{ + struct icsphy_softc *isc; + struct mii_softc *sc; + struct mii_attach_args *ma; + struct mii_data *mii; + + isc = device_get_softc(dev); + sc = &isc->mii_sc; + 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 = icsphy_service; + sc->mii_pdata = mii; + sc->mii_anegticks = MII_ANEGTICKS; + sc->mii_flags |= MIIF_NOISOLATE; + + mii->mii_instance++; + + ifmedia_add(&mii->mii_media, + IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst), + MII_MEDIA_100_TX, NULL); + + isc->mii_model = MII_MODEL(ma->mii_id2); + icsphy_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); + + return (0); +} + +static int +icsphy_service(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, 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); + } + 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; + + mii_phy_setmedia(sc); + break; + + case MII_TICK: + if (mii_phy_tick(sc) == EJUSTRETURN) + return (0); + break; + } + + /* Update the media status. */ + icsphy_status(sc); + + /* Callback if something changed. */ + mii_phy_update(sc, cmd); + return (0); +} + +static void +icsphy_status(struct mii_softc *sc) +{ + struct mii_data *mii = sc->mii_pdata; + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int bmcr, qpr; + + mii->mii_media_status = IFM_AVALID; + mii->mii_media_active = IFM_ETHER; + + /* + * Don't get link from the BMSR. It's available in the QPR, + * and we have to read it twice to unlatch it anyhow. This + * gives us fewer register reads. + */ + qpr = PHY_READ(sc, MII_ICSPHY_QPR); /* unlatch */ + qpr = PHY_READ(sc, MII_ICSPHY_QPR); /* real value */ + + if (qpr & QPR_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 ((qpr & QPR_ACOMP) == 0) { + /* Erg, still trying, I guess... */ + mii->mii_media_active |= IFM_NONE; + return; + } + if (qpr & QPR_SPEED) + mii->mii_media_active |= IFM_100_TX; + else + mii->mii_media_active |= IFM_10_T; + if (qpr & QPR_FDX) + mii->mii_media_active |= IFM_FDX; + else + mii->mii_media_active |= IFM_HDX; + } else + mii->mii_media_active = ife->ifm_media; +} + +static void +icsphy_reset(struct mii_softc *sc) +{ + struct icsphy_softc *isc = (struct icsphy_softc *)sc; + + mii_phy_reset(sc); + /* set powerdown feature */ + switch (isc->mii_model) { + case MII_MODEL_xxICS_1890: + case MII_MODEL_xxICS_1893: + PHY_WRITE(sc, MII_ICSPHY_ECR2, ECR2_100AUTOPWRDN); + break; + case MII_MODEL_xxICS_1892: + PHY_WRITE(sc, MII_ICSPHY_ECR2, + ECR2_10AUTOPWRDN|ECR2_100AUTOPWRDN); + break; + default: + /* 1889 have no ECR2 */ + break; + } + /* + * There is no description that the reset do auto-negotiation in the + * data sheet. + */ + PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_STARTNEG|BMCR_FDX); +} |