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| Current File : //compat/linux/proc/68247/root/compat/linux/proc/68247/root/sys/dev/mii/truephy.c |
/*-
* Copyright (c) 2007 The DragonFly Project. All rights reserved.
*
* This code is derived from software contributed to The DragonFly Project
* by Sepherosa Ziehau <sepherosa@gmail.com>
*
* 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. Neither the name of The DragonFly Project 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 COPYRIGHT HOLDERS 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
* COPYRIGHT HOLDERS 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.
*
* $DragonFly: src/sys/dev/netif/mii_layer/truephy.c,v 1.3 2008/02/10 07:29:27 sephe Exp $
* $FreeBSD: release/9.1.0/sys/dev/mii/truephy.c 229093 2011-12-31 14:12:12Z hselasky $
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <net/if.h>
#include <net/if_media.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_vlan_var.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include "miidevs.h"
#include <dev/mii/truephyreg.h>
#include "miibus_if.h"
#define TRUEPHY_FRAMELEN(mtu) \
(ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + (mtu) + ETHER_CRC_LEN)
static int truephy_service(struct mii_softc *, struct mii_data *, int);
static int truephy_attach(device_t);
static int truephy_probe(device_t);
static void truephy_reset(struct mii_softc *);
static void truephy_status(struct mii_softc *);
static device_method_t truephy_methods[] = {
/* device interface */
DEVMETHOD(device_probe, truephy_probe),
DEVMETHOD(device_attach, truephy_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD_END
};
static const struct mii_phydesc truephys[] = {
MII_PHY_DESC(AGERE, ET1011),
MII_PHY_DESC(AGERE, ET1011C),
MII_PHY_END
};
static devclass_t truephy_devclass;
static driver_t truephy_driver = {
"truephy",
truephy_methods,
sizeof(struct mii_softc)
};
DRIVER_MODULE(truephy, miibus, truephy_driver, truephy_devclass, 0, 0);
static const struct mii_phy_funcs truephy_funcs = {
truephy_service,
truephy_status,
truephy_reset
};
static const struct truephy_dsp {
uint16_t index;
uint16_t data;
} truephy_dspcode[] = {
{ 0x880b, 0x0926 }, /* AfeIfCreg4B1000Msbs */
{ 0x880c, 0x0926 }, /* AfeIfCreg4B100Msbs */
{ 0x880d, 0x0926 }, /* AfeIfCreg4B10Msbs */
{ 0x880e, 0xb4d3 }, /* AfeIfCreg4B1000Lsbs */
{ 0x880f, 0xb4d3 }, /* AfeIfCreg4B100Lsbs */
{ 0x8810, 0xb4d3 }, /* AfeIfCreg4B10Lsbs */
{ 0x8805, 0xb03e }, /* AfeIfCreg3B1000Msbs */
{ 0x8806, 0xb03e }, /* AfeIfCreg3B100Msbs */
{ 0x8807, 0xff00 }, /* AfeIfCreg3B10Msbs */
{ 0x8808, 0xe090 }, /* AfeIfCreg3B1000Lsbs */
{ 0x8809, 0xe110 }, /* AfeIfCreg3B100Lsbs */
{ 0x880a, 0x0000 }, /* AfeIfCreg3B10Lsbs */
{ 0x300d, 1 }, /* DisableNorm */
{ 0x280c, 0x0180 }, /* LinkHoldEnd */
{ 0x1c21, 0x0002 }, /* AlphaM */
{ 0x3821, 6 }, /* FfeLkgTx0 */
{ 0x381d, 1 }, /* FfeLkg1g4 */
{ 0x381e, 1 }, /* FfeLkg1g5 */
{ 0x381f, 1 }, /* FfeLkg1g6 */
{ 0x3820, 1 }, /* FfeLkg1g7 */
{ 0x8402, 0x01f0 }, /* Btinact */
{ 0x800e, 20 }, /* LftrainTime */
{ 0x800f, 24 }, /* DvguardTime */
{ 0x8010, 46 } /* IdlguardTime */
};
static int
truephy_probe(device_t dev)
{
return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT));
}
static int
truephy_attach(device_t dev)
{
struct mii_softc *sc;
sc = device_get_softc(dev);
mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
&truephy_funcs, 0);
PHY_RESET(sc);
sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
if (sc->mii_capabilities & BMSR_EXTSTAT) {
sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
/* No 1000baseT half-duplex support */
sc->mii_extcapabilities &= ~EXTSR_1000THDX;
}
device_printf(dev, " ");
mii_phy_add_media(sc);
printf("\n");
MIIBUS_MEDIAINIT(sc->mii_dev);
return (0);
}
static int
truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
int bmcr;
switch (cmd) {
case MII_POLLSTAT:
break;
case MII_MEDIACHG:
/*
* If the interface is not up, don't do anything.
*/
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
break;
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN;
PHY_WRITE(sc, MII_BMCR, bmcr);
PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN);
}
mii_phy_setmedia(sc);
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN;
PHY_WRITE(sc, MII_BMCR, bmcr);
if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
PHY_WRITE(sc, MII_BMCR,
bmcr | BMCR_AUTOEN | BMCR_STARTNEG);
}
}
break;
case MII_TICK:
if (mii_phy_tick(sc) == EJUSTRETURN)
return (0);
break;
}
/* Update the media status. */
PHY_STATUS(sc);
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}
static void
truephy_reset(struct mii_softc *sc)
{
int i;
if (sc->mii_mpd_model == MII_MODEL_AGERE_ET1011) {
mii_phy_reset(sc);
return;
}
for (i = 0; i < 2; ++i) {
PHY_READ(sc, MII_PHYIDR1);
PHY_READ(sc, MII_PHYIDR2);
PHY_READ(sc, TRUEPHY_CTRL);
PHY_WRITE(sc, TRUEPHY_CTRL,
TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1);
PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC);
PHY_READ(sc, TRUEPHY_DATA);
PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
}
PHY_READ(sc, MII_BMCR);
PHY_READ(sc, TRUEPHY_CTRL);
PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000);
PHY_WRITE(sc, TRUEPHY_CTRL,
TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0);
#define N(arr) (int)(sizeof(arr) / sizeof(arr[0]))
for (i = 0; i < N(truephy_dspcode); ++i) {
const struct truephy_dsp *dsp = &truephy_dspcode[i];
PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
PHY_WRITE(sc, TRUEPHY_DATA, dsp->data);
PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
PHY_READ(sc, TRUEPHY_DATA);
}
#undef N
PHY_READ(sc, MII_BMCR);
PHY_READ(sc, TRUEPHY_CTRL);
PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_S1000);
PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
mii_phy_reset(sc);
if (TRUEPHY_FRAMELEN(sc->mii_pdata->mii_ifp->if_mtu) > 2048) {
int conf;
conf = PHY_READ(sc, TRUEPHY_CONF);
conf &= ~TRUEPHY_CONF_TXFIFO_MASK;
conf |= TRUEPHY_CONF_TXFIFO_24;
PHY_WRITE(sc, TRUEPHY_CONF, conf);
}
}
static void
truephy_status(struct mii_softc *sc)
{
struct mii_data *mii = sc->mii_pdata;
int bmsr, bmcr, sr;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
sr = PHY_READ(sc, TRUEPHY_SR);
bmcr = PHY_READ(sc, MII_BMCR);
bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
if (bmsr & BMSR_LINK)
mii->mii_media_status |= IFM_ACTIVE;
if (bmcr & BMCR_AUTOEN) {
if ((bmsr & BMSR_ACOMP) == 0) {
mii->mii_media_active |= IFM_NONE;
return;
}
}
switch (sr & TRUEPHY_SR_SPD_MASK) {
case TRUEPHY_SR_SPD_1000T:
mii->mii_media_active |= IFM_1000_T;
break;
case TRUEPHY_SR_SPD_100TX:
mii->mii_media_active |= IFM_100_TX;
break;
case TRUEPHY_SR_SPD_10T:
mii->mii_media_active |= IFM_10_T;
break;
default:
/* XXX will this ever happen? */
printf("invalid media SR %#x\n", sr);
mii->mii_media_active |= IFM_NONE;
return;
}
if (sr & TRUEPHY_SR_FDX)
mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc);
else
mii->mii_media_active |= IFM_HDX;
}