1b334c8bc1
* remove the DEBUG ifdef; defining it is too far reaching throughout the whole system; * add a bitmask in the softc for controlling debugging; * .. enable said debugging as a sysctl; * add bitmaps for register access, reset and vlans. TODO: * Now that the debug statements are configurable, we definitely could do with more debugging * Move the debugging into the top-level etherswitch driver and have sub-drivers obey.
202 lines
5.2 KiB
C
202 lines
5.2 KiB
C
/*-
|
|
* Copyright (c) 2011-2012 Stefan Bethke.
|
|
* Copyright (c) 2012 Adrian Chadd.
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/module.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/sockio.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/systm.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <dev/iicbus/iic.h>
|
|
#include <dev/iicbus/iiconf.h>
|
|
#include <dev/iicbus/iicbus.h>
|
|
#include <dev/mii/mii.h>
|
|
#include <dev/mii/miivar.h>
|
|
#include <dev/mdio/mdio.h>
|
|
|
|
#include <dev/etherswitch/etherswitch.h>
|
|
|
|
#include <dev/etherswitch/arswitch/arswitchreg.h>
|
|
#include <dev/etherswitch/arswitch/arswitchvar.h>
|
|
|
|
#include <dev/etherswitch/arswitch/arswitch_reg.h>
|
|
#include <dev/etherswitch/arswitch/arswitch_phy.h>
|
|
|
|
#include "mdio_if.h"
|
|
#include "miibus_if.h"
|
|
#include "etherswitch_if.h"
|
|
|
|
/*
|
|
* Access PHYs integrated into the switch by going direct
|
|
* to the PHY space itself, rather than through the switch
|
|
* MDIO register.
|
|
*/
|
|
int
|
|
arswitch_readphy_external(device_t dev, int phy, int reg)
|
|
{
|
|
int ret;
|
|
struct arswitch_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
ARSWITCH_LOCK(sc);
|
|
ret = (MDIO_READREG(device_get_parent(dev), phy, reg));
|
|
DPRINTF(sc, ARSWITCH_DBG_PHYIO,
|
|
"%s: phy=0x%08x, reg=0x%08x, ret=0x%08x\n",
|
|
__func__, phy, reg, ret);
|
|
ARSWITCH_UNLOCK(sc);
|
|
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
arswitch_writephy_external(device_t dev, int phy, int reg, int data)
|
|
{
|
|
struct arswitch_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
ARSWITCH_LOCK(sc);
|
|
(void) MDIO_WRITEREG(device_get_parent(dev), phy,
|
|
reg, data);
|
|
DPRINTF(sc, ARSWITCH_DBG_PHYIO,
|
|
"%s: phy=0x%08x, reg=0x%08x, data=0x%08x\n",
|
|
__func__, phy, reg, data);
|
|
ARSWITCH_UNLOCK(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Access PHYs integrated into the switch chip through the switch's MDIO
|
|
* control register.
|
|
*/
|
|
int
|
|
arswitch_readphy_internal(device_t dev, int phy, int reg)
|
|
{
|
|
struct arswitch_softc *sc;
|
|
uint32_t data = 0, ctrl;
|
|
int err, timeout;
|
|
uint32_t a;
|
|
|
|
sc = device_get_softc(dev);
|
|
ARSWITCH_LOCK_ASSERT(sc, MA_NOTOWNED);
|
|
|
|
if (phy < 0 || phy >= 32)
|
|
return (ENXIO);
|
|
if (reg < 0 || reg >= 32)
|
|
return (ENXIO);
|
|
|
|
if (AR8X16_IS_SWITCH(sc, AR8327))
|
|
a = AR8327_REG_MDIO_CTRL;
|
|
else
|
|
a = AR8X16_REG_MDIO_CTRL;
|
|
|
|
ARSWITCH_LOCK(sc);
|
|
err = arswitch_writereg_msb(dev, a,
|
|
AR8X16_MDIO_CTRL_BUSY | AR8X16_MDIO_CTRL_MASTER_EN |
|
|
AR8X16_MDIO_CTRL_CMD_READ |
|
|
(phy << AR8X16_MDIO_CTRL_PHY_ADDR_SHIFT) |
|
|
(reg << AR8X16_MDIO_CTRL_REG_ADDR_SHIFT));
|
|
DEVERR(dev, err, "arswitch_readphy()=%d: phy=%d.%02x\n", phy, reg);
|
|
if (err != 0)
|
|
goto fail;
|
|
for (timeout = 100; timeout--; ) {
|
|
ctrl = arswitch_readreg_msb(dev, a);
|
|
if ((ctrl & AR8X16_MDIO_CTRL_BUSY) == 0)
|
|
break;
|
|
}
|
|
if (timeout < 0) {
|
|
DPRINTF(sc, ARSWITCH_DBG_ANY,
|
|
"arswitch_readphy(): phy=%d.%02x; timeout=%d\n",
|
|
phy, reg, timeout);
|
|
goto fail;
|
|
}
|
|
data = arswitch_readreg_lsb(dev, a) &
|
|
AR8X16_MDIO_CTRL_DATA_MASK;
|
|
ARSWITCH_UNLOCK(sc);
|
|
return (data);
|
|
|
|
fail:
|
|
ARSWITCH_UNLOCK(sc);
|
|
return (-1);
|
|
}
|
|
|
|
int
|
|
arswitch_writephy_internal(device_t dev, int phy, int reg, int data)
|
|
{
|
|
struct arswitch_softc *sc;
|
|
uint32_t ctrl;
|
|
int err, timeout;
|
|
uint32_t a;
|
|
|
|
sc = device_get_softc(dev);
|
|
ARSWITCH_LOCK_ASSERT(sc, MA_NOTOWNED);
|
|
|
|
if (reg < 0 || reg >= 32)
|
|
return (ENXIO);
|
|
|
|
if (AR8X16_IS_SWITCH(sc, AR8327))
|
|
a = AR8327_REG_MDIO_CTRL;
|
|
else
|
|
a = AR8X16_REG_MDIO_CTRL;
|
|
|
|
ARSWITCH_LOCK(sc);
|
|
err = arswitch_writereg(dev, a,
|
|
AR8X16_MDIO_CTRL_BUSY |
|
|
AR8X16_MDIO_CTRL_MASTER_EN |
|
|
AR8X16_MDIO_CTRL_CMD_WRITE |
|
|
(phy << AR8X16_MDIO_CTRL_PHY_ADDR_SHIFT) |
|
|
(reg << AR8X16_MDIO_CTRL_REG_ADDR_SHIFT) |
|
|
(data & AR8X16_MDIO_CTRL_DATA_MASK));
|
|
if (err != 0)
|
|
goto out;
|
|
for (timeout = 100; timeout--; ) {
|
|
ctrl = arswitch_readreg(dev, a);
|
|
if ((ctrl & AR8X16_MDIO_CTRL_BUSY) == 0)
|
|
break;
|
|
}
|
|
if (timeout < 0)
|
|
err = EIO;
|
|
out:
|
|
DEVERR(dev, err, "arswitch_writephy()=%d: phy=%d.%02x\n", phy, reg);
|
|
ARSWITCH_UNLOCK(sc);
|
|
return (err);
|
|
}
|