NetBSD/sys/dev/ic/dp83905.c

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2005-12-11 15:16:03 +03:00
/* $NetBSD: dp83905.c,v 1.3 2005/12/11 12:21:26 christos Exp $ */
/*-
* Copyright (c) 2001 Ben Harris
* Copyright (c) 1998 Mike Pumford
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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/param.h>
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__KERNEL_RCSID(0, "$NetBSD: dp83905.c,v 1.3 2005/12/11 12:21:26 christos Exp $");
#include <sys/device.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <machine/bus.h>
#include <dev/ic/dp8390reg.h>
#include <dev/ic/dp8390var.h>
#include <dev/ic/dp83905reg.h>
#include <dev/ic/dp83905var.h>
int
dp83905_mediachange(struct dp8390_softc *sc)
{
/* Media already set up. Reset the interface to make it stick. */
dp8390_reset(sc);
return (0);
}
void
dp83905_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
{
bus_space_tag_t nict = sc->sc_regt;
bus_space_handle_t nich = sc->sc_regh;
u_int8_t mcrb;
bus_space_write_1(nict, nich, ED_P0_CR,
ED_CR_RD2 | ED_CR_PAGE_0 | ED_CR_STA);
mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
/* Random op so next RBCR1 write doesn't go to MCRB. */
bus_space_write_1(nict, nich, ED_P0_CR,
ED_CR_RD2 | ED_CR_PAGE_0 | ED_CR_STA);
switch (mcrb & DP83905_MCRB_PHY_MASK) {
case DP83905_MCRB_PHY_10_T:
case DP83905_MCRB_PHY_TPI_NONSPEC: /* XXX */
ifmr->ifm_active = IFM_ETHER | IFM_10_T;
ifmr->ifm_status = IFM_AVALID;
if (mcrb & DP83905_MCRB_GDLNK)
ifmr->ifm_status |= IFM_ACTIVE;
break;
case DP83905_MCRB_PHY_10_2:
ifmr->ifm_active = IFM_ETHER | IFM_10_2;
break;
case DP83905_MCRB_PHY_AUI:
ifmr->ifm_active = IFM_ETHER | IFM_10_5;
break;
}
}
void dp83905_init_card(struct dp8390_softc *sc)
{
struct ifmedia *ifm = &sc->sc_media;
bus_space_tag_t nict = sc->sc_regt;
bus_space_handle_t nich = sc->sc_regh;
u_int8_t mcrb;
/* Set basic media type. */
switch (IFM_SUBTYPE(ifm->ifm_cur->ifm_media)) {
case IFM_AUTO:
/* software auto detect the media */
mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
mcrb &= ~(DP83905_MCRB_PHY_MASK | DP83905_MCRB_GDLNK |
DP83905_MCRB_BE);
mcrb |= DP83905_MCRB_PHY_10_T;
bus_space_write_1(nict, nich, DP83905_MCRB, mcrb);
mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
if (mcrb & DP83905_MCRB_GDLNK)
break;
/* No UTP use BNC */
/* FALLTHROUGH */
case IFM_10_2:
mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
mcrb &= ~(DP83905_MCRB_PHY_MASK | DP83905_MCRB_GDLNK |
DP83905_MCRB_BE);
mcrb |= DP83905_MCRB_PHY_10_2;
bus_space_write_1(nict, nich, DP83905_MCRB, mcrb);
/*
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* seems that re-reading config B here is required to
* prevent the interface hanging when manually selecting.
*/
bus_space_read_1(nict, nich, DP83905_MCRB);
break;
case IFM_10_T:
mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
mcrb &= ~(DP83905_MCRB_PHY_MASK | DP83905_MCRB_GDLNK |
DP83905_MCRB_BE);
mcrb |= DP83905_MCRB_PHY_10_T;
bus_space_write_1(nict, nich, DP83905_MCRB, mcrb);
/*
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* seems that re-reading config B here is required to
* prevent the interface hanging when manually selecting.
*/
bus_space_read_1(nict, nich, DP83905_MCRB);
break;
case IFM_10_5:
mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
mcrb &= ~(DP83905_MCRB_PHY_MASK | DP83905_MCRB_GDLNK |
DP83905_MCRB_BE);
mcrb |= DP83905_MCRB_PHY_AUI;
bus_space_write_1(nict, nich, DP83905_MCRB, mcrb);
/*
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* seems that re-reading config B here is required to
* prevent the interface hanging when manually selecting.
*/
bus_space_read_1(nict, nich, DP83905_MCRB);
break;
}
}