diff options
| author | msaitoh <msaitoh@NetBSD.org> | 2019-11-01 02:53:22 +0000 |
|---|---|---|
| committer | msaitoh <msaitoh@NetBSD.org> | 2019-11-01 02:53:22 +0000 |
| commit | 27d9ce98261f3376ecec2a30b6758e1793f07464 (patch) | |
| tree | 4bdcd5e6e0dae5ecfd34f51ba479d1945be88550 /sys/dev | |
| parent | 90034c65a8b0ab3dcea9f52fd39a17b85855426d (diff) | |
Port SMSC LAN87xx 10/100 Ethernet PHY driver from FreeBSD with some cleanup
and IFM_NONE support.
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/DEVNAMES | 3 | ||||
| -rw-r--r-- | sys/dev/mii/files.mii | 6 | ||||
| -rw-r--r-- | sys/dev/mii/smscphy.c | 251 |
3 files changed, 258 insertions, 2 deletions
diff --git a/sys/dev/DEVNAMES b/sys/dev/DEVNAMES index d6edd0440ff..8908119fdb6 100644 --- a/sys/dev/DEVNAMES +++ b/sys/dev/DEVNAMES @@ -1,4 +1,4 @@ -# $NetBSD: DEVNAMES,v 1.324 2019/10/30 12:06:26 msaitoh Exp $ +# $NetBSD: DEVNAMES,v 1.325 2019/11/01 02:53:23 msaitoh Exp $ # # This file contains all used device names and defined attributes in # alphabetical order. New devices added to the system somewhere should first @@ -1260,6 +1260,7 @@ sm MI smap playstation2 smc93cx6 MI Attribute smg vax +smscphy MI smsh MI sn arc sn mac68k diff --git a/sys/dev/mii/files.mii b/sys/dev/mii/files.mii index bfdb67b9b6c..44648cb7ef6 100644 --- a/sys/dev/mii/files.mii +++ b/sys/dev/mii/files.mii @@ -1,4 +1,4 @@ -# $NetBSD: files.mii,v 1.52 2019/10/30 12:06:26 msaitoh Exp $ +# $NetBSD: files.mii,v 1.53 2019/11/01 02:53:22 msaitoh Exp $ defflag opt_mii.h MIIVERBOSE @@ -166,3 +166,7 @@ file dev/mii/rdcphy.c rdcphy device micphy: mii_phy, ukphy_subr attach micphy at mii file dev/mii/micphy.c micphy + +device smscphy: mii_phy +attach smscphy at mii +file dev/mii/smscphy.c smscphy diff --git a/sys/dev/mii/smscphy.c b/sys/dev/mii/smscphy.c new file mode 100644 index 00000000000..00886f26be7 --- /dev/null +++ b/sys/dev/mii/smscphy.c @@ -0,0 +1,251 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2006 Benno Rice. 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. + * + * 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> +/* $FreeBSD: head/sys/dev/mii/smscphy.c 326255 2017-11-27 14:52:40Z pfg $ */ + +/* + * Driver for the SMSC LAN8710A + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/device.h> +#include <sys/socket.h> +#include <sys/errno.h> + +#include <net/if.h> +#include <net/if_media.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> +#include <dev/mii/miidevs.h> + +/* PHY special control/status register */ +#define SMSCPHY_SPCSR 0x1f +#define SPCSR_SPDIND_10 0x0004 +#define SPCSR_SPDIND_100 0x0008 +#define SPCSR_SPDIND_SPDMASK 0x000c +#define SPCSR_SPDIND_FDX 0x0010 + +static int smscphy_match(device_t, cfdata_t, void *); +static void smscphy_attach(device_t, device_t, void *); + +CFATTACH_DECL_NEW(smscphy, sizeof (struct mii_softc), + smscphy_match, smscphy_attach, mii_phy_detach, mii_phy_activate); + +static void smscphy_power(struct mii_softc *, bool); +static int smscphy_service(struct mii_softc *, struct mii_data *, int); +static void smscphy_auto(struct mii_softc *, int); +static void smscphy_status(struct mii_softc *); + +static const struct mii_phydesc smscphys[] = { + MII_PHY_DESC(SMSC, LAN8700), + MII_PHY_DESC(SMSC, LAN8710_LAN8720), + MII_PHY_END +}; + +static const struct mii_phy_funcs smscphy_funcs = { + smscphy_service, + smscphy_status, + mii_phy_reset +}; + +static int +smscphy_match(device_t dev, cfdata_t match, void *aux) +{ + struct mii_attach_args *ma = aux; + + if (mii_phy_match(ma, smscphys) != NULL) + return 10; + + return 0; +} + +static void +smscphy_attach(device_t parent, device_t self, void *aux) +{ + struct mii_softc *sc = device_private(self); + struct mii_attach_args *ma = aux; + struct mii_data *mii = ma->mii_data; + const struct mii_phydesc *mpd; + + mpd = mii_phy_match(ma, smscphys); + aprint_naive(": Media interface\n"); + aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); + + sc->mii_dev = self; + sc->mii_inst = mii->mii_instance; + sc->mii_phy = ma->mii_phyno; + sc->mii_funcs = &smscphy_funcs; + sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); + sc->mii_mpd_model = MII_MODEL(ma->mii_id2); + sc->mii_mpd_rev = MII_REV(ma->mii_id2); + sc->mii_pdata = mii; + sc->mii_flags = ma->mii_flags; + sc->mii_anegticks = MII_ANEGTICKS; + + PHY_RESET(sc); + + PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); + sc->mii_capabilities &= ma->mii_capmask; + aprint_normal_dev(self, ""); + if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) + aprint_error("no media present"); + else + mii_phy_add_media(sc); + aprint_normal("\n"); +} + +static void +smscphy_power(struct mii_softc *sc, bool power) +{ + uint16_t bmcr, new; + + PHY_READ(sc, MII_BMCR, &bmcr); + if (power) + new = bmcr & ~BMCR_PDOWN; + else + new = bmcr | BMCR_PDOWN; + if (bmcr != new) + PHY_WRITE(sc, MII_BMCR, new); +} + +static int +smscphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) +{ + struct ifmedia_entry *ife; + uint16_t reg; + + ife = mii->mii_media.ifm_cur; + + switch (cmd) { + case MII_POLLSTAT: + break; + + case MII_MEDIACHG: + /* Try to power up the PHY in case it's down */ + if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) + smscphy_power(sc, true); + + switch (IFM_SUBTYPE(ife->ifm_media)) { + case IFM_AUTO: + smscphy_auto(sc, ife->ifm_media); + break; + + default: + mii_phy_setmedia(sc); + if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) + smscphy_power(sc, false); + break; + } + break; + + case MII_TICK: + if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) + break; + + PHY_READ(sc, MII_BMSR, ®); + PHY_READ(sc, MII_BMSR, ®); + if (reg & BMSR_LINK) { + sc->mii_ticks = 0; + break; + } + + if (++sc->mii_ticks <= MII_ANEGTICKS) + break; + + PHY_RESET(sc); + smscphy_auto(sc, ife->ifm_media); + break; + } + + /* Update the media status. */ + PHY_STATUS(sc); + + /* Callback if something changed. */ + mii_phy_update(sc, cmd); + return 0; +} + +static void +smscphy_auto(struct mii_softc *sc, int media) +{ + uint16_t anar; + + sc->mii_ticks = 0; + anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA; + if ((media & IFM_FLOW) != 0) + anar |= ANAR_FC; + PHY_WRITE(sc, MII_ANAR, anar); + /* Apparently this helps. */ + PHY_READ(sc, MII_ANAR, &anar); + PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG); +} + +static void +smscphy_status(struct mii_softc *sc) +{ + struct mii_data *mii = sc->mii_pdata; + uint16_t bmcr, bmsr, status; + + mii->mii_media_status = IFM_AVALID; + mii->mii_media_active = IFM_ETHER; + + PHY_READ(sc, MII_BMSR, &bmsr); + PHY_READ(sc, MII_BMSR, &bmsr); + if ((bmsr & BMSR_LINK) != 0) + mii->mii_media_status |= IFM_ACTIVE; + + PHY_READ(sc, MII_BMCR, &bmcr); + if ((bmcr & BMCR_ISO) != 0) { + mii->mii_media_active |= IFM_NONE; + mii->mii_media_status = 0; + return; + } + + if ((bmcr & BMCR_LOOP) != 0) + mii->mii_media_active |= IFM_LOOP; + + if ((bmcr & BMCR_AUTOEN) != 0) { + if ((bmsr & BMSR_ACOMP) == 0) { + /* Erg, still trying, I guess... */ + mii->mii_media_active |= IFM_NONE; + return; + } + } + + PHY_READ(sc, SMSCPHY_SPCSR, &status); + if ((status & SPCSR_SPDIND_SPDMASK) == SPCSR_SPDIND_100) + mii->mii_media_active |= IFM_100_TX; + else + mii->mii_media_active |= IFM_10_T; + if (status & SPCSR_SPDIND_FDX) + mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc); + else + mii->mii_media_active |= IFM_HDX; +} |
