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/* |
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* Copyright (c) 1997, 1998, 1999 |
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* Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* This product includes software developed by Bill Paul. |
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* 4. Neither the name of the author nor the names of any co-contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD |
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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* THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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#include <sys/cdefs.h> |
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__FBSDID("$FreeBSD: src/sys/dev/dc/pnphy.c,v 1.21 2006/08/02 05:28:52 yongari Exp $"); |
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|
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/* |
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* Pseudo-driver for media selection on the Lite-On PNIC 82c168 |
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* chip. The NWAY support on this chip is horribly broken, so we |
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* only support manual mode selection. This is lame, but getting |
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* NWAY to work right is amazingly difficult. |
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*/ |
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|
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#include <sys/param.h> |
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#include <sys/systm.h> |
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#include <sys/kernel.h> |
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#include <sys/socket.h> |
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#include <sys/errno.h> |
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#include <sys/lock.h> |
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#include <sys/module.h> |
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#include <sys/mutex.h> |
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#include <sys/bus.h> |
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|
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#include <net/if.h> |
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#include <net/if_arp.h> |
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#include <net/if_media.h> |
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|
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#include <dev/mii/mii.h> |
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#include <dev/mii/miivar.h> |
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#include "miidevs.h" |
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|
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#include <machine/bus.h> |
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#include <machine/resource.h> |
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#include <sys/bus.h> |
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|
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#include <dev/dc/if_dcreg.h> |
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|
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#include "miibus_if.h" |
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|
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#define DC_SETBIT(sc, reg, x) \ |
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CSR_WRITE_4(sc, reg, \ |
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CSR_READ_4(sc, reg) | x) |
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|
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#define DC_CLRBIT(sc, reg, x) \ |
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CSR_WRITE_4(sc, reg, \ |
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CSR_READ_4(sc, reg) & ~x) |
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|
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static int pnphy_probe(device_t); |
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static int pnphy_attach(device_t); |
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|
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static device_method_t pnphy_methods[] = { |
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/* device interface */ |
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DEVMETHOD(device_probe, pnphy_probe), |
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DEVMETHOD(device_attach, pnphy_attach), |
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DEVMETHOD(device_detach, mii_phy_detach), |
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DEVMETHOD(device_shutdown, bus_generic_shutdown), |
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{ 0, 0 } |
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}; |
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|
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static devclass_t pnphy_devclass; |
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|
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static driver_t pnphy_driver = { |
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"pnphy", |
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pnphy_methods, |
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sizeof(struct mii_softc) |
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}; |
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|
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DRIVER_MODULE(pnphy, miibus, pnphy_driver, pnphy_devclass, 0, 0); |
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|
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static int pnphy_service(struct mii_softc *, struct mii_data *, int); |
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static void pnphy_status(struct mii_softc *); |
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|
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static int |
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pnphy_probe(device_t dev) |
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{ |
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struct mii_attach_args *ma; |
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|
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ma = device_get_ivars(dev); |
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|
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/* |
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* The dc driver will report the 82c168 vendor and device |
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* ID to let us know that it wants us to attach. |
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*/ |
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if (ma->mii_id1 != DC_VENDORID_LO || |
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ma->mii_id2 != DC_DEVICEID_82C168) |
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return(ENXIO); |
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|
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device_set_desc(dev, "PNIC 82c168 media interface"); |
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|
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return (BUS_PROBE_DEFAULT); |
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} |
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|
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static int |
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pnphy_attach(device_t dev) |
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{ |
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struct mii_softc *sc; |
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struct mii_attach_args *ma; |
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struct mii_data *mii; |
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|
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sc = device_get_softc(dev); |
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ma = device_get_ivars(dev); |
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sc->mii_dev = device_get_parent(dev); |
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mii = device_get_softc(sc->mii_dev); |
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LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); |
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|
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sc->mii_inst = mii->mii_instance; |
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sc->mii_phy = ma->mii_phyno; |
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sc->mii_service = pnphy_service; |
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sc->mii_pdata = mii; |
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|
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sc->mii_flags |= MIIF_NOISOLATE; |
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mii->mii_instance++; |
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|
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#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) |
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|
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sc->mii_capabilities = |
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BMSR_100TXFDX|BMSR_100TXHDX|BMSR_10TFDX|BMSR_10THDX; |
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sc->mii_capabilities &= ma->mii_capmask; |
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device_printf(dev, " "); |
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mii_add_media(sc); |
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printf("\n"); |
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst), |
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BMCR_ISO); |
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|
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst), |
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BMCR_LOOP|BMCR_S100); |
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|
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#undef ADD |
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|
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MIIBUS_MEDIAINIT(sc->mii_dev); |
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return(0); |
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} |
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|
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static int |
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pnphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) |
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{ |
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur; |
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|
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switch (cmd) { |
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case MII_POLLSTAT: |
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/* |
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* If we're not polling our PHY instance, just return. |
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*/ |
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if (IFM_INST(ife->ifm_media) != sc->mii_inst) { |
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return (0); |
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} |
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break; |
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|
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case MII_MEDIACHG: |
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/* |
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* If the media indicates a different PHY instance, |
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* isolate ourselves. |
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*/ |
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if (IFM_INST(ife->ifm_media) != sc->mii_inst) |
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return (0); |
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|
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/* |
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* If the interface is not up, don't do anything. |
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*/ |
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if ((mii->mii_ifp->if_flags & IFF_UP) == 0) |
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break; |
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|
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sc->mii_flags = 0; |
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|
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switch (IFM_SUBTYPE(ife->ifm_media)) { |
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case IFM_AUTO: |
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/* NWAY is busted on this chip */ |
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case IFM_100_T4: |
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/* |
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* XXX Not supported as a manual setting right now. |
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*/ |
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return (EINVAL); |
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case IFM_100_TX: |
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mii->mii_media_active = IFM_ETHER|IFM_100_TX; |
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if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) |
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mii->mii_media_active |= IFM_FDX; |
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MIIBUS_STATCHG(sc->mii_dev); |
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return(0); |
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case IFM_10_T: |
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mii->mii_media_active = IFM_ETHER|IFM_10_T; |
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if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) |
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mii->mii_media_active |= IFM_FDX; |
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MIIBUS_STATCHG(sc->mii_dev); |
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return(0); |
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default: |
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return(EINVAL); |
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} |
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break; |
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|
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case MII_TICK: |
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/* |
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* If we're not currently selected, just return. |
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*/ |
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if (IFM_INST(ife->ifm_media) != sc->mii_inst) |
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return (0); |
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|
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/* |
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* Is the interface even up? |
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*/ |
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if ((mii->mii_ifp->if_flags & IFF_UP) == 0) |
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return (0); |
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|
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break; |
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} |
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|
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/* Update the media status. */ |
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pnphy_status(sc); |
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|
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/* Callback if something changed. */ |
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mii_phy_update(sc, cmd); |
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return (0); |
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} |
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|
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static void |
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pnphy_status(struct mii_softc *sc) |
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{ |
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struct mii_data *mii = sc->mii_pdata; |
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int reg; |
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struct dc_softc *dc_sc; |
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|
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dc_sc = mii->mii_ifp->if_softc; |
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|
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mii->mii_media_status = IFM_AVALID; |
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mii->mii_media_active = IFM_ETHER; |
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|
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reg = CSR_READ_4(dc_sc, DC_ISR); |
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|
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if (!(reg & DC_ISR_LINKFAIL)) |
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mii->mii_media_status |= IFM_ACTIVE; |
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|
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if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_SPEEDSEL) |
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mii->mii_media_active |= IFM_10_T; |
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else |
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mii->mii_media_active |= IFM_100_TX; |
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if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_FULLDUPLEX) |
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mii->mii_media_active |= IFM_FDX; |
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|
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return; |
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} |
