diff options
author | Joel Sherrill <joel.sherrill@oarcorp.com> | 2012-03-22 08:02:26 -0500 |
---|---|---|
committer | Joel Sherrill <joel.sherrill@oarcorp.com> | 2012-03-22 08:02:26 -0500 |
commit | 5ad09a161d646b68cb249d064ac618dcbb41a899 (patch) | |
tree | f45267e5818e114d8956628e27247ea838ee2b0e /freebsd/dev/dc/pnphy.c | |
parent | Add smp variables used by e1000 and remove unneeded ifdefs (diff) | |
download | rtems-libbsd-5ad09a161d646b68cb249d064ac618dcbb41a899.tar.bz2 |
Add DEC Tulip, Broadcomm (bce, bfe, bge), and SMC 9111x NICs
Diffstat (limited to 'freebsd/dev/dc/pnphy.c')
-rw-r--r-- | freebsd/dev/dc/pnphy.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/freebsd/dev/dc/pnphy.c b/freebsd/dev/dc/pnphy.c new file mode 100644 index 00000000..d5837e54 --- /dev/null +++ b/freebsd/dev/dc/pnphy.c @@ -0,0 +1,243 @@ +#include <freebsd/machine/rtems-bsd-config.h> + +/* + * Copyright (c) 1997, 1998, 1999 + * Bill Paul <wpaul@ee.columbia.edu>. 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 <freebsd/sys/cdefs.h> +__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 <freebsd/sys/param.h> +#include <freebsd/sys/systm.h> +#include <freebsd/sys/kernel.h> +#include <freebsd/sys/socket.h> +#include <freebsd/sys/errno.h> +#include <freebsd/sys/lock.h> +#include <freebsd/sys/module.h> +#include <freebsd/sys/mutex.h> +#include <freebsd/sys/bus.h> + +#include <freebsd/net/if.h> +#include <freebsd/net/if_arp.h> +#include <freebsd/net/if_media.h> + +#include <freebsd/dev/mii/mii.h> +#include <freebsd/dev/mii/miivar.h> +#include <freebsd/local/miidevs.h> + +#include <freebsd/machine/bus.h> +#include <freebsd/machine/resource.h> +#include <freebsd/sys/bus.h> + +#include <freebsd/dev/dc/if_dcreg.h> + +#include <freebsd/local/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_flags = miibus_get_flags(dev); + 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; + + 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; +} |