diff options
Diffstat (limited to 'sys/dev/mii')
| -rw-r--r-- | sys/dev/mii/dcphy.c | 493 | ||||
| -rw-r--r-- | sys/dev/mii/files.mii | 6 | ||||
| -rw-r--r-- | sys/dev/mii/miidevs | 8 |
3 files changed, 505 insertions, 2 deletions
diff --git a/sys/dev/mii/dcphy.c b/sys/dev/mii/dcphy.c new file mode 100644 index 00000000000..b69048cb92d --- /dev/null +++ b/sys/dev/mii/dcphy.c @@ -0,0 +1,493 @@ +/* $OpenBSD: dcphy.c,v 1.1 2000/01/09 01:15:16 jason Exp $ */ + +/* + * 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. + * + * $FreeBSD: src/sys/dev/mii/dcphy.c,v 1.2 1999/12/13 21:45:13 wpaul Exp $ + */ + +/* + * Pseudo-driver for internal NWAY support on DEC 21143 and workalike + * controllers. Technically we're abusing the miibus code to handle + * media selection and NWAY support here since there is no MII + * interface. However the logical operations are roughly the same, + * and the alternative is to create a fake MII interface in the driver, + * which is harder to do. + */ + +#include <sys/param.h> +#include <sys/device.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/socket.h> +#include <sys/errno.h> +#include <sys/socket.h> + +#include <net/if.h> +#include <net/if_dl.h> +#include <net/if_types.h> +#include <net/if_media.h> +#include <netinet/in.h> +#include <netinet/if_ether.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> +#include <dev/mii/miidevs.h> + +#include <machine/bus.h> + +#include <dev/pci/pcivar.h> + +#include <dev/pci/if_dcreg.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) + +#define MIIF_AUTOTIMEOUT 0x0004 + +/* + * This is the subsystem ID for the built-in 21143 ethernet + * in several Compaq Presario systems. Apparently these are + * 10Mbps only, so we need to treat them specially. + */ +#define COMPAQ_PRESARIO_ID 0xb0bb0e11 + +int dcphy_match __P((struct device *, void *, void *)); +void dcphy_attach __P((struct device *, struct device *, void *)); + +struct cfattach dcphy_ca = { + sizeof(struct mii_softc), dcphy_match, dcphy_attach +}; + +struct cfdriver dcphy_cd = { + NULL, "dcphy", DV_DULL +}; + +int dcphy_service __P((struct mii_softc *, struct mii_data *, int)); +void dcphy_status __P((struct mii_softc *)); +int dcphy_auto __P((struct mii_softc *, int)); +void dcphy_reset __P((struct mii_softc *)); + +int +dcphy_match(parent, match, aux) + struct device *parent; + void *match, *aux; +{ + struct mii_attach_args *ma = aux; + + /* + * The dc driver will report the 21143 vendor and device + * ID to let us know that it wants us to attach. + */ + if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxDEC && + MII_MODEL(ma->mii_id2) == MII_MODEL_xxDEC_xxDC) + return (10); + + return (0); +} + +void +dcphy_attach(parent, self, aux) + struct device *parent; + struct device *self; + void *aux; +{ + struct mii_softc *sc = (struct mii_softc *)self; + struct mii_attach_args *ma = aux; + struct mii_data *mii = ma->mii_data; + struct dc_softc *dc_sc; + + printf(": internal PHY\n"); + sc->mii_inst = mii->mii_instance; + sc->mii_phy = ma->mii_phyno; + sc->mii_service = dcphy_service; + sc->mii_pdata = mii; + + sc->mii_flags |= MIIF_NOISOLATE; + mii->mii_instance++; + + dc_sc = mii->mii_ifp->if_softc; + CSR_WRITE_4(dc_sc, DC_10BTSTAT, 0); + CSR_WRITE_4(dc_sc, DC_10BTCTRL, 0); + +#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) + + switch(dc_sc->dc_csid) { + case COMPAQ_PRESARIO_ID: + /* Example of how to only allow 10Mbps modes. */ + sc->mii_capabilities = BMSR_ANEG|BMSR_10TFDX|BMSR_10THDX; + break; + default: + ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, + sc->mii_inst), BMCR_LOOP|BMCR_S100); + + sc->mii_capabilities = + BMSR_ANEG|BMSR_100TXFDX|BMSR_100TXHDX| + BMSR_10TFDX|BMSR_10THDX; + break; + } + + sc->mii_capabilities &= ma->mii_capmask; + if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) + printf("no media present"); + else + mii_add_media(sc); +#undef ADD +} + +int +dcphy_service(sc, mii, cmd) + struct mii_softc *sc; + struct mii_data *mii; + int cmd; +{ + struct dc_softc *dc_sc; + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int reg; + u_int32_t mode; + + dc_sc = mii->mii_ifp->if_softc; + + switch (cmd) { + case MII_POLLSTAT: + /* + * If we're not polling our PHY instance, just return. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) { + return (0); + } + break; + + case MII_MEDIACHG: + /* + * If the media indicates a different PHY instance, + * isolate ourselves. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) { + return (0); + } + + /* + * If the interface is not up, don't do anything. + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + break; + + sc->mii_flags = 0; + mii->mii_media_active = IFM_NONE; + mode = CSR_READ_4(dc_sc, DC_NETCFG); + mode &= ~(DC_NETCFG_FULLDUPLEX|DC_NETCFG_PORTSEL| + DC_NETCFG_PCS|DC_NETCFG_SCRAMBLER|DC_NETCFG_SPEEDSEL); + + switch (IFM_SUBTYPE(ife->ifm_media)) { + case IFM_AUTO: + /*dcphy_reset(sc);*/ + (void) dcphy_auto(sc, 0); + break; + case IFM_100_T4: + /* + * XXX Not supported as a manual setting right now. + */ + return (EINVAL); + case IFM_100_TX: + dcphy_reset(sc); + DC_CLRBIT(dc_sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL); + mode |= DC_NETCFG_PORTSEL|DC_NETCFG_PCS| + DC_NETCFG_SCRAMBLER; + if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) + mode |= DC_NETCFG_FULLDUPLEX; + else + mode &= ~DC_NETCFG_FULLDUPLEX; + CSR_WRITE_4(dc_sc, DC_NETCFG, mode); + break; + case IFM_10_T: + DC_CLRBIT(dc_sc, DC_SIARESET, DC_SIA_RESET); + DC_CLRBIT(dc_sc, DC_10BTCTRL, 0xFFFF); + if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) + DC_SETBIT(dc_sc, DC_10BTCTRL, 0x7F3D); + else + DC_SETBIT(dc_sc, DC_10BTCTRL, 0x7F3F); + DC_SETBIT(dc_sc, DC_SIARESET, DC_SIA_RESET); + DC_CLRBIT(dc_sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL); + mode &= ~DC_NETCFG_PORTSEL; + mode |= DC_NETCFG_SPEEDSEL; + if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) + mode |= DC_NETCFG_FULLDUPLEX; + else + mode &= ~DC_NETCFG_FULLDUPLEX; + CSR_WRITE_4(dc_sc, DC_NETCFG, mode); + break; + default: + return(EINVAL); + break; + } + break; + + case MII_TICK: + /* + * If we're not currently selected, just return. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) + return (0); + + /* + * Only used for autonegotiation. + */ + if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) + return (0); + + /* + * Is the interface even up? + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + return (0); + + if (sc->mii_flags & MIIF_DOINGAUTO) { + if (++sc->mii_ticks != 5) + return(0); + else { + sc->mii_ticks = 0; + sc->mii_flags &= ~MIIF_DOINGAUTO; + sc->mii_flags |= MIIF_AUTOTIMEOUT; + } + } + + sc->mii_flags &= ~MIIF_DOINGAUTO; + + /* + * Check to see if we have link. If we do, we don't + * need to restart the autonegotiation process. Read + * the BMSR twice in case it's latched. + */ + reg = CSR_READ_4(dc_sc, DC_10BTSTAT) & + (DC_TSTAT_LS10|DC_TSTAT_LS100); + + if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX && + !(reg & DC_TSTAT_LS100)) { + if (sc->mii_flags & MIIF_AUTOTIMEOUT) { + sc->mii_flags &= ~MIIF_AUTOTIMEOUT; + break; + } else + return(0); + } else if (IFM_SUBTYPE(mii->mii_media_active) == IFM_10_T && + !(reg & DC_TSTAT_LS10)) { + if (sc->mii_flags & MIIF_AUTOTIMEOUT) { + sc->mii_flags &= ~MIIF_AUTOTIMEOUT; + break; + } else + return(0); + } else if (IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE && + (!(reg & DC_TSTAT_LS10) || !(reg & DC_TSTAT_LS100))) { + if (sc->mii_flags & MIIF_AUTOTIMEOUT) { + sc->mii_flags &= ~MIIF_AUTOTIMEOUT; + break; + } else + return(0); + } else if (CSR_READ_4(dc_sc, DC_ISR) & DC_ISR_LINKGOOD) { + if (sc->mii_flags & MIIF_AUTOTIMEOUT) { + sc->mii_flags &= ~MIIF_AUTOTIMEOUT; + break; + } else + return(0); + } + + sc->mii_ticks = 0; + /*dcphy_reset(sc);*/ + dcphy_auto(sc, 0); + + break; + } + + /* Update the media status. */ + dcphy_status(sc); + + /* Callback if something changed. */ + if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) { + (*mii->mii_statchg)(sc->mii_dev.dv_parent); + sc->mii_active = mii->mii_media_active; + } + return (0); +} + +void +dcphy_status(sc) + struct mii_softc *sc; +{ + struct mii_data *mii = sc->mii_pdata; + int reg, anlpar; + 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_10BTSTAT) & + (DC_TSTAT_LS10|DC_TSTAT_LS100); + + if (!(reg & DC_TSTAT_LS10) || !(reg & DC_TSTAT_LS100)) + mii->mii_media_status |= IFM_ACTIVE; + + if (sc->mii_flags & MIIF_DOINGAUTO) { + mii->mii_media_active |= IFM_NONE; + return; + } + + if (CSR_READ_4(dc_sc, DC_10BTCTRL) & DC_TCTL_AUTONEGENBL && + CSR_READ_4(dc_sc, DC_10BTSTAT) & DC_TSTAT_ANEGSTAT) { + /* Erg, still trying, I guess... */ + if ((CSR_READ_4(dc_sc, DC_10BTSTAT) & + DC_ASTAT_AUTONEGCMP) != DC_ASTAT_AUTONEGCMP) { + mii->mii_media_active |= IFM_NONE; + return; + } + + if (CSR_READ_4(dc_sc, DC_10BTSTAT) & DC_TSTAT_LP_CAN_NWAY) { + anlpar = CSR_READ_4(dc_sc, DC_10BTSTAT) >> 16; + if (anlpar & ANLPAR_T4 && + sc->mii_capabilities & BMSR_100TXHDX) + mii->mii_media_active |= IFM_100_T4; + else if (anlpar & ANLPAR_TX_FD && + sc->mii_capabilities & BMSR_100TXHDX) + mii->mii_media_active |= IFM_100_TX|IFM_FDX; + else if (anlpar & ANLPAR_TX && + sc->mii_capabilities & BMSR_100TXHDX) + mii->mii_media_active |= IFM_100_TX; + else if (anlpar & ANLPAR_10_FD) + mii->mii_media_active |= IFM_10_T|IFM_FDX; + else if (anlpar & ANLPAR_10) + mii->mii_media_active |= IFM_10_T; + else + mii->mii_media_active |= IFM_NONE; + if (DC_IS_INTEL(dc_sc)) + DC_CLRBIT(dc_sc, DC_10BTCTRL, + DC_TCTL_AUTONEGENBL); + return; + } + /* + * If the other side doesn't support NWAY, then the + * best we can do is determine if we have a 10Mbps or + * 100Mbps link. There's no way to know if the link + * is full or half duplex, so we default to half duplex + * and hope that the user is clever enough to manually + * change the media settings if we're wrong. + */ + if (!(reg & DC_TSTAT_LS100)) + mii->mii_media_active |= IFM_100_TX; + else if (!(reg & DC_TSTAT_LS10)) + mii->mii_media_active |= IFM_10_T; + else + mii->mii_media_active |= IFM_NONE; + if (DC_IS_INTEL(dc_sc)) + DC_CLRBIT(dc_sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL); + return; + } + + if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_SCRAMBLER) + mii->mii_media_active |= IFM_100_TX; + else + mii->mii_media_active |= IFM_10_T; + if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_FULLDUPLEX) + mii->mii_media_active |= IFM_FDX; + + return; +} + +int +dcphy_auto(mii, waitfor) + struct mii_softc *mii; + int waitfor; +{ + int i; + struct dc_softc *sc; + + sc = mii->mii_pdata->mii_ifp->if_softc; + + if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) { + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL); + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_FULLDUPLEX); + DC_CLRBIT(sc, DC_SIARESET, DC_SIA_RESET); + if (mii->mii_capabilities & BMSR_100TXHDX) + CSR_WRITE_4(sc, DC_10BTCTRL, 0x3FFFF); + else + CSR_WRITE_4(sc, DC_10BTCTRL, 0xFFFF); + DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET); + DC_SETBIT(sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL); + DC_SETBIT(sc, DC_10BTSTAT, DC_ASTAT_TXDISABLE); + } + + if (waitfor) { + /* Wait 500ms for it to complete. */ + for (i = 0; i < 500; i++) { + if ((CSR_READ_4(sc, DC_10BTSTAT) & DC_TSTAT_ANEGSTAT) + == DC_ASTAT_AUTONEGCMP) + return(0); + DELAY(1000); + } + /* + * Don't need to worry about clearing MIIF_DOINGAUTO. + * If that's set, a timeout is pending, and it will + * clear the flag. + */ + return(EIO); + } + + /* + * Just let it finish asynchronously. This is for the benefit of + * the tick handler driving autonegotiation. Don't want 500ms + * delays all the time while the system is running! + */ + if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) + mii->mii_flags |= MIIF_DOINGAUTO; + + return(EJUSTRETURN); +} + +void +dcphy_reset(mii) + struct mii_softc *mii; +{ + struct dc_softc *sc; + + sc = mii->mii_pdata->mii_ifp->if_softc; + + DC_CLRBIT(sc, DC_SIARESET, DC_SIA_RESET); + DELAY(1000); + DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET); + + return; +} diff --git a/sys/dev/mii/files.mii b/sys/dev/mii/files.mii index 0fb6a7bee46..2d5675fd695 100644 --- a/sys/dev/mii/files.mii +++ b/sys/dev/mii/files.mii @@ -1,4 +1,4 @@ -# $OpenBSD: files.mii,v 1.8 1999/12/10 21:48:20 jason Exp $ +# $OpenBSD: files.mii,v 1.9 2000/01/09 01:15:16 jason Exp $ # $NetBSD: files.mii,v 1.13 1998/11/05 00:36:48 thorpej Exp $ file dev/mii/mii.c mii @@ -68,3 +68,7 @@ file dev/mii/tqphy.c tqphy device ukphy: mii_phy, ukphy_subr attach ukphy at mii file dev/mii/ukphy.c ukphy + +device dcphy: mii_phy +attach dcphy at mii +file dev/mii/dcphy.c dcphy diff --git a/sys/dev/mii/miidevs b/sys/dev/mii/miidevs index ef951299c80..3bbe9441639 100644 --- a/sys/dev/mii/miidevs +++ b/sys/dev/mii/miidevs @@ -1,4 +1,4 @@ -$OpenBSD: miidevs,v 1.8 1999/12/10 20:47:26 jason Exp $ +$OpenBSD: miidevs,v 1.9 2000/01/09 01:15:16 jason Exp $ /* $NetBSD: miidevs,v 1.3 1998/11/05 03:43:43 thorpej Exp $ */ /*- @@ -75,6 +75,9 @@ oui xxLEVEL1 0x1e0400 Level 1 /* Don't know what's going on here. */ oui xxDAVICOM 0x006040 Davicom Semiconductor +/* Contrived vendor for dcphy */ +oui xxDEC 0x040440 Digital Clone + /* * List of known models. Grouped by oui. */ @@ -86,6 +89,9 @@ model AMD 79C873phy 0x0036 Am79C873 internal PHY /* Davicom Semiconductor PHYs */ model xxDAVICOM DM9101 0x0000 DM9101 10/100 media interface +/* Contrived vendor/model for dcphy */ +model xxDEC xxDC 0x0001 DC + /* Integrated Circuit Systems PHYs */ model xxICS 1890 0x0002 ICS1890 10/100 media interface |