mirror of
https://git.rtems.org/rtems-libbsd/
synced 2025-10-15 18:27:28 +08:00
Import USB and USB WLAN from FreeBSD.
This commit is contained in:
Christian Mauderer
222
freebsd/sys/dev/usb/net/ruephy.c
Normal file
222
freebsd/sys/dev/usb/net/ruephy.c
Normal file
@@ -0,0 +1,222 @@
|
||||
#include <machine/rtems-bsd-kernel-space.h>
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2001-2003, Shunsuke Akiyama <akiyama@FreeBSD.org>.
|
||||
* 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 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 AUTHOR 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>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
/*
|
||||
* driver for RealTek RTL8150 internal PHY
|
||||
*/
|
||||
|
||||
#include <rtems/bsd/sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/module.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/bus.h>
|
||||
|
||||
#include <net/if.h>
|
||||
#include <net/if_arp.h>
|
||||
#include <net/if_media.h>
|
||||
|
||||
#include <dev/mii/mii.h>
|
||||
#include <dev/mii/miivar.h>
|
||||
#include <rtems/bsd/local/miidevs.h>
|
||||
|
||||
#include <dev/usb/net/ruephyreg.h>
|
||||
|
||||
#include <rtems/bsd/local/miibus_if.h>
|
||||
|
||||
static int ruephy_probe(device_t);
|
||||
static int ruephy_attach(device_t);
|
||||
|
||||
static device_method_t ruephy_methods[] = {
|
||||
/* device interface */
|
||||
DEVMETHOD(device_probe, ruephy_probe),
|
||||
DEVMETHOD(device_attach, ruephy_attach),
|
||||
DEVMETHOD(device_detach, mii_phy_detach),
|
||||
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
||||
DEVMETHOD_END
|
||||
};
|
||||
|
||||
static devclass_t ruephy_devclass;
|
||||
|
||||
static driver_t ruephy_driver = {
|
||||
.name = "ruephy",
|
||||
.methods = ruephy_methods,
|
||||
.size = sizeof(struct mii_softc)
|
||||
};
|
||||
|
||||
DRIVER_MODULE(ruephy, miibus, ruephy_driver, ruephy_devclass, 0, 0);
|
||||
|
||||
static int ruephy_service(struct mii_softc *, struct mii_data *, int);
|
||||
static void ruephy_reset(struct mii_softc *);
|
||||
static void ruephy_status(struct mii_softc *);
|
||||
|
||||
/*
|
||||
* The RealTek RTL8150 internal PHY doesn't have vendor/device ID
|
||||
* registers; rue(4) fakes up a return value of all zeros.
|
||||
*/
|
||||
static const struct mii_phydesc ruephys[] = {
|
||||
{ 0, 0, "RealTek RTL8150 internal media interface" },
|
||||
MII_PHY_END
|
||||
};
|
||||
|
||||
static const struct mii_phy_funcs ruephy_funcs = {
|
||||
ruephy_service,
|
||||
ruephy_status,
|
||||
ruephy_reset
|
||||
};
|
||||
|
||||
static int
|
||||
ruephy_probe(device_t dev)
|
||||
{
|
||||
|
||||
if (strcmp(device_get_name(device_get_parent(device_get_parent(dev))),
|
||||
"rue") == 0)
|
||||
return (mii_phy_dev_probe(dev, ruephys, BUS_PROBE_DEFAULT));
|
||||
return (ENXIO);
|
||||
}
|
||||
|
||||
static int
|
||||
ruephy_attach(device_t dev)
|
||||
{
|
||||
|
||||
mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
|
||||
&ruephy_funcs, 1);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
ruephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
|
||||
{
|
||||
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
||||
int reg;
|
||||
|
||||
switch (cmd) {
|
||||
case MII_POLLSTAT:
|
||||
break;
|
||||
|
||||
case MII_MEDIACHG:
|
||||
mii_phy_setmedia(sc);
|
||||
break;
|
||||
|
||||
case MII_TICK:
|
||||
/*
|
||||
* Only used for autonegotiation.
|
||||
*/
|
||||
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
|
||||
break;
|
||||
|
||||
/*
|
||||
* Check to see if we have link. If we do, we don't
|
||||
* need to restart the autonegotiation process. Read
|
||||
* the MSR twice in case it's latched.
|
||||
*/
|
||||
reg = PHY_READ(sc, RUEPHY_MII_MSR) |
|
||||
PHY_READ(sc, RUEPHY_MII_MSR);
|
||||
if (reg & RUEPHY_MSR_LINK)
|
||||
break;
|
||||
|
||||
/* Only retry autonegotiation every mii_anegticks seconds. */
|
||||
if (sc->mii_ticks <= sc->mii_anegticks)
|
||||
break;
|
||||
|
||||
sc->mii_ticks = 0;
|
||||
PHY_RESET(sc);
|
||||
if (mii_phy_auto(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
|
||||
ruephy_reset(struct mii_softc *sc)
|
||||
{
|
||||
|
||||
mii_phy_reset(sc);
|
||||
|
||||
/*
|
||||
* XXX RealTek RTL8150 PHY doesn't set the BMCR properly after
|
||||
* XXX reset, which breaks autonegotiation.
|
||||
*/
|
||||
PHY_WRITE(sc, MII_BMCR, (BMCR_S100 | BMCR_AUTOEN | BMCR_FDX));
|
||||
}
|
||||
|
||||
static void
|
||||
ruephy_status(struct mii_softc *phy)
|
||||
{
|
||||
struct mii_data *mii = phy->mii_pdata;
|
||||
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
||||
int bmsr, bmcr, msr;
|
||||
|
||||
mii->mii_media_status = IFM_AVALID;
|
||||
mii->mii_media_active = IFM_ETHER;
|
||||
|
||||
msr = PHY_READ(phy, RUEPHY_MII_MSR) | PHY_READ(phy, RUEPHY_MII_MSR);
|
||||
if (msr & RUEPHY_MSR_LINK)
|
||||
mii->mii_media_status |= IFM_ACTIVE;
|
||||
|
||||
bmcr = PHY_READ(phy, MII_BMCR);
|
||||
if (bmcr & BMCR_ISO) {
|
||||
mii->mii_media_active |= IFM_NONE;
|
||||
mii->mii_media_status = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR);
|
||||
if (bmcr & BMCR_AUTOEN) {
|
||||
if ((bmsr & BMSR_ACOMP) == 0) {
|
||||
/* Erg, still trying, I guess... */
|
||||
mii->mii_media_active |= IFM_NONE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (msr & RUEPHY_MSR_SPEED100)
|
||||
mii->mii_media_active |= IFM_100_TX;
|
||||
else
|
||||
mii->mii_media_active |= IFM_10_T;
|
||||
|
||||
if (msr & RUEPHY_MSR_DUPLEX)
|
||||
mii->mii_media_active |=
|
||||
IFM_FDX | mii_phy_flowstatus(phy);
|
||||
else
|
||||
mii->mii_media_active |= IFM_HDX;
|
||||
} else
|
||||
mii->mii_media_active = ife->ifm_media;
|
||||
}
|
||||
Reference in New Issue
Block a user