718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
219 lines
5.6 KiB
C
219 lines
5.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2011-2012 Stefan Bethke.
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* Copyright (c) 2012 Adrian Chadd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/errno.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <machine/bus.h>
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#include <dev/iicbus/iic.h>
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#include <dev/iicbus/iiconf.h>
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#include <dev/iicbus/iicbus.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/mdio/mdio.h>
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#include <dev/etherswitch/etherswitch.h>
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#include <dev/etherswitch/arswitch/arswitchreg.h>
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#include <dev/etherswitch/arswitch/arswitchvar.h>
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#include <dev/etherswitch/arswitch/arswitch_reg.h>
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#include <dev/etherswitch/arswitch/arswitch_phy.h>
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#include "mdio_if.h"
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#include "miibus_if.h"
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#include "etherswitch_if.h"
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/*
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* Access PHYs integrated into the switch by going direct
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* to the PHY space itself, rather than through the switch
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* MDIO register.
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*/
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int
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arswitch_readphy_external(device_t dev, int phy, int reg)
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{
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int ret;
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struct arswitch_softc *sc;
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sc = device_get_softc(dev);
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ARSWITCH_LOCK(sc);
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ret = (MDIO_READREG(device_get_parent(dev), phy, reg));
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DPRINTF(sc, ARSWITCH_DBG_PHYIO,
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"%s: phy=0x%08x, reg=0x%08x, ret=0x%08x\n",
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__func__, phy, reg, ret);
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ARSWITCH_UNLOCK(sc);
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return (ret);
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}
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int
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arswitch_writephy_external(device_t dev, int phy, int reg, int data)
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{
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struct arswitch_softc *sc;
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sc = device_get_softc(dev);
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ARSWITCH_LOCK(sc);
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(void) MDIO_WRITEREG(device_get_parent(dev), phy,
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reg, data);
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DPRINTF(sc, ARSWITCH_DBG_PHYIO,
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"%s: phy=0x%08x, reg=0x%08x, data=0x%08x\n",
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__func__, phy, reg, data);
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ARSWITCH_UNLOCK(sc);
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return (0);
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}
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/*
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* Access PHYs integrated into the switch chip through the switch's MDIO
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* control register.
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*/
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int
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arswitch_readphy_internal(device_t dev, int phy, int reg)
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{
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struct arswitch_softc *sc;
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uint32_t data = 0, ctrl;
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int err, timeout;
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uint32_t a;
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sc = device_get_softc(dev);
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ARSWITCH_LOCK_ASSERT(sc, MA_NOTOWNED);
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if (phy < 0 || phy >= 32)
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return (ENXIO);
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if (reg < 0 || reg >= 32)
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return (ENXIO);
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if (AR8X16_IS_SWITCH(sc, AR8327))
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a = AR8327_REG_MDIO_CTRL;
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else
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a = AR8X16_REG_MDIO_CTRL;
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ARSWITCH_LOCK(sc);
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err = arswitch_writereg_msb(dev, a,
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AR8X16_MDIO_CTRL_BUSY | AR8X16_MDIO_CTRL_MASTER_EN |
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AR8X16_MDIO_CTRL_CMD_READ |
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(phy << AR8X16_MDIO_CTRL_PHY_ADDR_SHIFT) |
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(reg << AR8X16_MDIO_CTRL_REG_ADDR_SHIFT));
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DEVERR(dev, err, "arswitch_readphy()=%d: phy=%d.%02x\n", phy, reg);
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if (err != 0)
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goto fail;
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for (timeout = 100; timeout--; ) {
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ctrl = arswitch_readreg_msb(dev, a);
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if ((ctrl & AR8X16_MDIO_CTRL_BUSY) == 0)
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break;
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}
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if (timeout < 0) {
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DPRINTF(sc, ARSWITCH_DBG_ANY,
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"arswitch_readphy(): phy=%d.%02x; timeout=%d\n",
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phy, reg, timeout);
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goto fail;
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}
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data = arswitch_readreg_lsb(dev, a) &
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AR8X16_MDIO_CTRL_DATA_MASK;
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ARSWITCH_UNLOCK(sc);
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DPRINTF(sc, ARSWITCH_DBG_PHYIO,
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"%s: phy=0x%08x, reg=0x%08x, ret=0x%08x\n",
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__func__, phy, reg, data);
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return (data);
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fail:
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ARSWITCH_UNLOCK(sc);
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DPRINTF(sc, ARSWITCH_DBG_PHYIO,
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"%s: phy=0x%08x, reg=0x%08x, fail; err=%d\n",
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__func__, phy, reg, err);
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return (-1);
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}
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int
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arswitch_writephy_internal(device_t dev, int phy, int reg, int data)
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{
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struct arswitch_softc *sc;
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uint32_t ctrl;
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int err, timeout;
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uint32_t a;
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sc = device_get_softc(dev);
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ARSWITCH_LOCK_ASSERT(sc, MA_NOTOWNED);
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if (reg < 0 || reg >= 32)
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return (ENXIO);
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if (AR8X16_IS_SWITCH(sc, AR8327))
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a = AR8327_REG_MDIO_CTRL;
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else
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a = AR8X16_REG_MDIO_CTRL;
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ARSWITCH_LOCK(sc);
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err = arswitch_writereg(dev, a,
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AR8X16_MDIO_CTRL_BUSY |
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AR8X16_MDIO_CTRL_MASTER_EN |
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AR8X16_MDIO_CTRL_CMD_WRITE |
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(phy << AR8X16_MDIO_CTRL_PHY_ADDR_SHIFT) |
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(reg << AR8X16_MDIO_CTRL_REG_ADDR_SHIFT) |
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(data & AR8X16_MDIO_CTRL_DATA_MASK));
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if (err != 0)
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goto out;
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for (timeout = 100; timeout--; ) {
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ctrl = arswitch_readreg(dev, a);
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if ((ctrl & AR8X16_MDIO_CTRL_BUSY) == 0)
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break;
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}
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if (timeout < 0)
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err = EIO;
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DPRINTF(sc, ARSWITCH_DBG_PHYIO,
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"%s: phy=0x%08x, reg=0x%08x, data=0x%08x, err=%d\n",
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__func__, phy, reg, data, err);
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out:
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DEVERR(dev, err, "arswitch_writephy()=%d: phy=%d.%02x\n", phy, reg);
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ARSWITCH_UNLOCK(sc);
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return (err);
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}
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