250 lines
6.5 KiB
C
250 lines
6.5 KiB
C
/* $NetBSD: dl10019.c,v 1.15 2020/02/04 05:25:39 thorpej Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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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 THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: dl10019.c,v 1.15 2020/02/04 05:25:39 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/syslog.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#include <sys/bus.h>
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#include <sys/intr.h>
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#include <dev/mii/miivar.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/mii_bitbang.h>
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#include <dev/ic/dp8390reg.h>
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#include <dev/ic/dp8390var.h>
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#include <dev/ic/ne2000reg.h>
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#include <dev/ic/ne2000var.h>
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#include <dev/ic/dl10019reg.h>
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#include <dev/ic/dl10019var.h>
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int dl10019_mii_readreg(device_t, int, int, uint16_t *);
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int dl10019_mii_writereg(device_t, int, int, uint16_t);
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void dl10019_mii_statchg(struct ifnet *);
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/*
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* MII bit-bang glue.
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*/
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u_int32_t dl10019_mii_bitbang_read(device_t);
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void dl10019_mii_bitbang_write(device_t, u_int32_t);
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const struct mii_bitbang_ops dl10019_mii_bitbang_ops = {
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dl10019_mii_bitbang_read,
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dl10019_mii_bitbang_write,
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{
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DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
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DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
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DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
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DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
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0, /* MII_BIT_DIR_PHY_HOST */
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}
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};
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const struct mii_bitbang_ops dl10022_mii_bitbang_ops = {
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dl10019_mii_bitbang_read,
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dl10019_mii_bitbang_write,
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{
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DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
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DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
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DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
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DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
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0, /* MII_BIT_DIR_PHY_HOST */
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}
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};
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static void
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dl10019_mii_reset(struct dp8390_softc *sc)
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{
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struct ne2000_softc *nsc = (void *) sc;
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int i;
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if (nsc->sc_type != NE2000_TYPE_DL10022)
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return;
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for (i = 0; i < 2; i++) {
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bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
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0x08);
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delay(1);
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bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
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0x0c);
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delay(1);
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}
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bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00);
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}
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void
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dl10019_media_init(struct dp8390_softc *sc)
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{
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struct ifnet *ifp = &sc->sc_ec.ec_if;
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struct mii_data *mii = &sc->sc_mii;
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mii->mii_ifp = ifp;
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mii->mii_readreg = dl10019_mii_readreg;
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mii->mii_writereg = dl10019_mii_writereg;
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mii->mii_statchg = dl10019_mii_statchg;
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ifmedia_init(&mii->mii_media, IFM_IMASK, dp8390_mediachange,
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dp8390_mediastatus);
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dl10019_mii_reset(sc);
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mii_attach(sc->sc_dev, mii, 0xffffffff, MII_PHY_ANY,
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MII_OFFSET_ANY, 0);
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if (LIST_FIRST(&mii->mii_phys) == NULL) {
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ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
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ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
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} else
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ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
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}
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void
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dl10019_media_fini(struct dp8390_softc *sc)
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{
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mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
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ifmedia_fini(&sc->sc_mii.mii_media);
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}
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int
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dl10019_mediachange(struct dp8390_softc *sc)
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{
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int rc;
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if ((rc = mii_mediachg(&sc->sc_mii)) == ENXIO)
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return 0;
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return rc;
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}
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void
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dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
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{
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mii_pollstat(&sc->sc_mii);
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ifmr->ifm_status = sc->sc_mii.mii_media_status;
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ifmr->ifm_active = sc->sc_mii.mii_media_active;
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}
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void
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dl10019_init_card(struct dp8390_softc *sc)
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{
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dl10019_mii_reset(sc);
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mii_mediachg(&sc->sc_mii);
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}
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void
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dl10019_stop_card(struct dp8390_softc *sc)
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{
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mii_down(&sc->sc_mii);
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}
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u_int32_t
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dl10019_mii_bitbang_read(device_t self)
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{
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struct dp8390_softc *sc = device_private(self);
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/* We're already in Page 0. */
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return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) &
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~DL0_GPIO_PRESERVE);
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}
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void
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dl10019_mii_bitbang_write(device_t self, u_int32_t val)
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{
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struct dp8390_softc *sc = device_private(self);
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u_int8_t gpio;
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/* We're already in Page 0. */
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gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO);
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bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
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(val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE));
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}
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int
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dl10019_mii_readreg(device_t self, int phy, int reg, uint16_t *val)
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{
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struct ne2000_softc *nsc = device_private(self);
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const struct mii_bitbang_ops *ops;
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ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
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&dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
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return mii_bitbang_readreg(self, ops, phy, reg, val);
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}
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int
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dl10019_mii_writereg(device_t self, int phy, int reg, uint16_t val)
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{
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struct ne2000_softc *nsc = device_private(self);
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const struct mii_bitbang_ops *ops;
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ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
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&dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
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return mii_bitbang_writereg(self, ops, phy, reg, val);
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}
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void
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dl10019_mii_statchg(struct ifnet *ifp)
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{
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struct ne2000_softc *nsc = ifp->if_softc;
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struct dp8390_softc *sc = &nsc->sc_dp8390;
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/*
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* Disable collision detection on the DL10022 if
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* we are on a full-duplex link.
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*/
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if (nsc->sc_type == NE2000_TYPE_DL10022) {
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u_int8_t diag;
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if (sc->sc_mii.mii_media_active & IFM_FDX)
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diag = DL0_DIAG_NOCOLLDETECT;
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else
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diag = 0;
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bus_space_write_1(sc->sc_regt, sc->sc_regh,
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NEDL_DL0_DIAG, diag);
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}
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}
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