NetBSD-5.0.2/sys/dev/ic/dl10019.c
/* $NetBSD: dl10019.c,v 1.11 2008/04/28 20:23:49 martin Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* 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 NETBSD FOUNDATION, INC. 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 THE FOUNDATION OR CONTRIBUTORS
* 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>
__KERNEL_RCSID(0, "$NetBSD: dl10019.c,v 1.11 2008/04/28 20:23:49 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <sys/bus.h>
#include <sys/intr.h>
#include <dev/mii/miivar.h>
#include <dev/mii/mii.h>
#include <dev/mii/mii_bitbang.h>
#include <dev/ic/dp8390reg.h>
#include <dev/ic/dp8390var.h>
#include <dev/ic/ne2000reg.h>
#include <dev/ic/ne2000var.h>
#include <dev/ic/dl10019reg.h>
#include <dev/ic/dl10019var.h>
int dl10019_mii_readreg(device_t, int, int);
void dl10019_mii_writereg(device_t, int, int, int);
void dl10019_mii_statchg(device_t);
/*
* MII bit-bang glue.
*/
u_int32_t dl10019_mii_bitbang_read(device_t);
void dl10019_mii_bitbang_write(device_t, u_int32_t);
const struct mii_bitbang_ops dl10019_mii_bitbang_ops = {
dl10019_mii_bitbang_read,
dl10019_mii_bitbang_write,
{
DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
0, /* MII_BIT_DIR_PHY_HOST */
}
};
const struct mii_bitbang_ops dl10022_mii_bitbang_ops = {
dl10019_mii_bitbang_read,
dl10019_mii_bitbang_write,
{
DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
0, /* MII_BIT_DIR_PHY_HOST */
}
};
static void
dl10019_mii_reset(struct dp8390_softc *sc)
{
struct ne2000_softc *nsc = (void *) sc;
int i;
if (nsc->sc_type != NE2000_TYPE_DL10022)
return;
for (i = 0; i < 2; i++) {
bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
0x08);
delay(1);
bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
0x0c);
delay(1);
}
bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00);
}
void
dl10019_media_init(struct dp8390_softc *sc)
{
struct ifnet *ifp = &sc->sc_ec.ec_if;
sc->sc_mii.mii_ifp = ifp;
sc->sc_mii.mii_readreg = dl10019_mii_readreg;
sc->sc_mii.mii_writereg = dl10019_mii_writereg;
sc->sc_mii.mii_statchg = dl10019_mii_statchg;
ifmedia_init(&sc->sc_mii.mii_media, IFM_IMASK, dp8390_mediachange,
dp8390_mediastatus);
dl10019_mii_reset(sc);
mii_attach(sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
MII_OFFSET_ANY, 0);
if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
} else
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
}
void
dl10019_media_fini(struct dp8390_softc *sc)
{
mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
}
int
dl10019_mediachange(struct dp8390_softc *sc)
{
int rc;
if ((rc = mii_mediachg(&sc->sc_mii)) == ENXIO)
return 0;
return rc;
}
void
dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
{
mii_pollstat(&sc->sc_mii);
ifmr->ifm_status = sc->sc_mii.mii_media_status;
ifmr->ifm_active = sc->sc_mii.mii_media_active;
}
void
dl10019_init_card(struct dp8390_softc *sc)
{
dl10019_mii_reset(sc);
mii_mediachg(&sc->sc_mii);
}
void
dl10019_stop_card(struct dp8390_softc *sc)
{
mii_down(&sc->sc_mii);
}
u_int32_t
dl10019_mii_bitbang_read(device_t self)
{
struct dp8390_softc *sc = device_private(self);
/* We're already in Page 0. */
return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) &
~DL0_GPIO_PRESERVE);
}
void
dl10019_mii_bitbang_write(device_t self, u_int32_t val)
{
struct dp8390_softc *sc = device_private(self);
u_int8_t gpio;
/* We're already in Page 0. */
gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO);
bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
(val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE));
}
int
dl10019_mii_readreg(device_t self, int phy, int reg)
{
struct ne2000_softc *nsc = device_private(self);
const struct mii_bitbang_ops *ops;
int val;
ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
&dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
val = mii_bitbang_readreg(self, ops, phy, reg);
return (val);
}
void
dl10019_mii_writereg(device_t self, int phy, int reg, int val)
{
struct ne2000_softc *nsc = device_private(self);
const struct mii_bitbang_ops *ops;
ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
&dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
mii_bitbang_writereg(self, ops, phy, reg, val);
}
void
dl10019_mii_statchg(device_t self)
{
struct dp8390_softc *sc = device_private(self);
struct ne2000_softc *nsc = device_private(self);
/*
* Disable collision detection on the DL10022 if
* we are on a full-duplex link.
*/
if (nsc->sc_type == NE2000_TYPE_DL10022) {
u_int8_t diag;
if (sc->sc_mii.mii_media_active & IFM_FDX)
diag = DL0_DIAG_NOCOLLDETECT;
else
diag = 0;
bus_space_write_1(sc->sc_regt, sc->sc_regh,
NEDL_DL0_DIAG, diag);
}
}