/* * Copyright (c) 1997, 1998, 1999 * Bill Paul . 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 Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD * 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 __FBSDID("$FreeBSD$"); /* * Pseudo-driver for media selection on the Lite-On PNIC 82c168 * chip. The NWAY support on this chip is horribly broken, so we * only support manual mode selection. This is lame, but getting * NWAY to work right is amazingly difficult. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "miidevs.h" #include #include #include #include #include "miibus_if.h" #define DC_SETBIT(sc, reg, x) \ CSR_WRITE_4(sc, reg, \ CSR_READ_4(sc, reg) | x) #define DC_CLRBIT(sc, reg, x) \ CSR_WRITE_4(sc, reg, \ CSR_READ_4(sc, reg) & ~x) static int pnphy_probe(device_t); static int pnphy_attach(device_t); static device_method_t pnphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, pnphy_probe), DEVMETHOD(device_attach, pnphy_attach), DEVMETHOD(device_detach, mii_phy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), { 0, 0 } }; static devclass_t pnphy_devclass; static driver_t pnphy_driver = { "pnphy", pnphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(pnphy, miibus, pnphy_driver, pnphy_devclass, 0, 0); static int pnphy_service(struct mii_softc *, struct mii_data *, int); static void pnphy_status(struct mii_softc *); static int pnphy_probe(device_t dev) { struct mii_attach_args *ma; ma = device_get_ivars(dev); /* * The dc driver will report the 82c168 vendor and device * ID to let us know that it wants us to attach. */ if (ma->mii_id1 != DC_VENDORID_LO || ma->mii_id2 != DC_DEVICEID_82C168) return (ENXIO); device_set_desc(dev, "PNIC 82c168 media interface"); return (BUS_PROBE_DEFAULT); } static int pnphy_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 = ma->mii_data; LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); sc->mii_inst = mii->mii_instance++; sc->mii_phy = ma->mii_phyno; sc->mii_service = pnphy_service; sc->mii_pdata = mii; /* * Apparently, we can neither isolate nor do loopback. */ sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP; sc->mii_capabilities = BMSR_100TXFDX | BMSR_100TXHDX | BMSR_10TFDX | BMSR_10THDX; sc->mii_capabilities &= ma->mii_capmask; device_printf(dev, " "); mii_phy_add_media(sc); printf("\n"); MIIBUS_MEDIAINIT(sc->mii_dev); return (0); } static int pnphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 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; sc->mii_flags = 0; switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: /* NWAY is busted on this chip */ case IFM_100_T4: /* * XXX Not supported as a manual setting right now. */ return (EINVAL); case IFM_100_TX: mii->mii_media_active = IFM_ETHER | IFM_100_TX; if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) mii->mii_media_active |= IFM_FDX; MIIBUS_STATCHG(sc->mii_dev); return (0); case IFM_10_T: mii->mii_media_active = IFM_ETHER | IFM_10_T; if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) mii->mii_media_active |= IFM_FDX; MIIBUS_STATCHG(sc->mii_dev); return (0); default: return (EINVAL); } break; case MII_TICK: /* * Is the interface even up? */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) return (0); break; } /* Update the media status. */ pnphy_status(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } static void pnphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; int reg; struct dc_softc *dc_sc; dc_sc = mii->mii_ifp->if_softc; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; reg = CSR_READ_4(dc_sc, DC_ISR); if (!(reg & DC_ISR_LINKFAIL)) mii->mii_media_status |= IFM_ACTIVE; if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_SPEEDSEL) mii->mii_media_active |= IFM_10_T; else mii->mii_media_active |= IFM_100_TX; if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_FULLDUPLEX) mii->mii_media_active |= IFM_FDX; else mii->mii_media_active |= IFM_HDX; }