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/*-
* Copyright (c) 2013 Luiz Otavio O Souza.
* Copyright (c) 2011-2012 Stefan Bethke.
* Copyright (c) 2012 Adrian Chadd.
* Copyright (C) 2008 Patrick Horn.
* Copyright (C) 2008, 2010 Martin Mares.
* 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/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <net/if.h>
#include <dev/mii/mii.h>
#include <dev/etherswitch/etherswitch.h>
#include <dev/etherswitch/ip17x/ip17x_phy.h>
#include <dev/etherswitch/ip17x/ip17x_reg.h>
#include <dev/etherswitch/ip17x/ip17x_var.h>
#include <dev/etherswitch/ip17x/ip17x_vlans.h>
#include <dev/etherswitch/ip17x/ip175d.h>
/*
* IP175D specific functions.
*/
/*
* Reset the switch to default state.
*/
static int
ip175d_reset(struct ip17x_softc *sc)
{
/* Reset all the switch settings. */
ip17x_writephy(sc->sc_dev, IP175D_RESET_PHY, IP175D_RESET_REG, 0x175d);
DELAY(2000);
/* Disable the special tagging mode. */
ip17x_updatephy(sc->sc_dev, 21, 22, 0x3, 0x0);
/* Set 802.1q protocol type. */
ip17x_writephy(sc->sc_dev, 22, 3, 0x8100);
return (0);
}
/*
* Set the Switch configuration.
*/
static int
ip175d_hw_setup(struct ip17x_softc *sc)
{
struct ip17x_vlan *v;
uint32_t ports[IP17X_MAX_VLANS];
uint32_t addtag[IP17X_MAX_VLANS];
uint32_t striptag[IP17X_MAX_VLANS];
uint32_t vlan_mask;
int i, j;
vlan_mask = 0;
for (i = 0; i < IP17X_MAX_VLANS; i++) {
ports[i] = 0;
addtag[i] = 0;
striptag[i] = 0;
v = &sc->vlan[i];
if ((v->vlanid & ETHERSWITCH_VID_VALID) == 0 ||
sc->vlan_mode == 0) {
/* Vlangroup disabled. Reset the filter. */
ip17x_writephy(sc->sc_dev, 22, 14 + i, i + 1);
ports[i] = 0x3f;
continue;
}
vlan_mask |= (1 << i);
ports[i] = v->ports;
/* Setup the filter, write the VLAN id. */
ip17x_writephy(sc->sc_dev, 22, 14 + i,
v->vlanid & ETHERSWITCH_VID_MASK);
for (j = 0; j < MII_NPHY; j++) {
if ((ports[i] & (1 << j)) == 0)
continue;
if (sc->addtag & (1 << j))
addtag[i] |= (1 << j);
if (sc->striptag & (1 << j))
striptag[i] |= (1 << j);
}
}
/* Write the port masks, tag adds and removals. */
for (i = 0; i < IP17X_MAX_VLANS / 2; i++) {
ip17x_writephy(sc->sc_dev, 23, i,
ports[2 * i] | (ports[2 * i + 1] << 8));
ip17x_writephy(sc->sc_dev, 23, i + 8,
addtag[2 * i] | (addtag[2 * i + 1] << 8));
ip17x_writephy(sc->sc_dev, 23, i + 16,
striptag[2 * i] | (striptag[2 * i + 1] << 8));
}
/* Write the in use vlan mask. */
ip17x_writephy(sc->sc_dev, 22, 10, vlan_mask);
/* Write the PVID of each port. */
for (i = 0; i < sc->numports; i++)
ip17x_writephy(sc->sc_dev, 22, 4 + i, sc->pvid[i]);
return (0);
}
/*
* Set the switch VLAN mode.
*/
static int
ip175d_set_vlan_mode(struct ip17x_softc *sc, uint32_t mode)
{
switch (mode) {
case ETHERSWITCH_VLAN_DOT1Q:
/*
* VLAN classification rules: tag-based VLANs,
* use VID to classify, drop packets that cannot
* be classified.
*/
ip17x_updatephy(sc->sc_dev, 22, 0, 0x3fff, 0x003f);
sc->vlan_mode = mode;
break;
case ETHERSWITCH_VLAN_PORT:
sc->vlan_mode = mode;
/* fallthrough */
default:
/*
* VLAN classification rules: everything off &
* clear table.
*/
ip17x_updatephy(sc->sc_dev, 22, 0, 0xbfff, 0x8000);
sc->vlan_mode = 0;
break;
};
if (sc->vlan_mode != 0) {
/*
* Ingress rules: CFI=1 dropped, null VID is untagged, VID=1 passed,
* VID=0xfff discarded, admin both tagged and untagged, ingress
* filters enabled.
*/
ip17x_updatephy(sc->sc_dev, 22, 1, 0x0fff, 0x0c3f);
/* Egress rules: IGMP processing off, keep VLAN header off. */
ip17x_updatephy(sc->sc_dev, 22, 2, 0x0fff, 0x0000);
} else {
ip17x_updatephy(sc->sc_dev, 22, 1, 0x0fff, 0x043f);
ip17x_updatephy(sc->sc_dev, 22, 2, 0x0fff, 0x0020);
}
/* Reset vlans. */
ip17x_reset_vlans(sc, sc->vlan_mode);
/* Update switch configuration. */
ip175d_hw_setup(sc);
return (0);
}
/*
* Get the switch VLAN mode.
*/
static int
ip175d_get_vlan_mode(struct ip17x_softc *sc)
{
return (sc->vlan_mode);
}
void
ip175d_attach(struct ip17x_softc *sc)
{
sc->hal.ip17x_reset = ip175d_reset;
sc->hal.ip17x_hw_setup = ip175d_hw_setup;
sc->hal.ip17x_get_vlan_mode = ip175d_get_vlan_mode;
sc->hal.ip17x_set_vlan_mode = ip175d_set_vlan_mode;
/* Defaults for IP175C. */
sc->cpuport = IP175X_CPU_PORT;
sc->numports = IP175X_NUM_PORTS;
sc->info.es_vlan_caps = ETHERSWITCH_VLAN_DOT1Q;
device_printf(sc->sc_dev, "type: IP175D\n");
}
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