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/*-
* Copyright (c) 2013 Luiz Otavio O Souza.
* 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/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/ip175c.h>
/*
* IP175C specific functions.
*/
/*
* Reset the switch.
*/
static int
ip175c_reset(struct ip17x_softc *sc)
{
uint32_t data;
/* Reset all the switch settings. */
if (ip17x_writephy(sc->sc_dev, IP175C_RESET_PHY, IP175C_RESET_REG,
0x175c))
return (-1);
DELAY(2000);
/* Force IP175C mode. */
data = ip17x_readphy(sc->sc_dev, IP175C_MODE_PHY, IP175C_MODE_REG);
if (data == 0x175a) {
if (ip17x_writephy(sc->sc_dev, IP175C_MODE_PHY, IP175C_MODE_REG,
0x175c))
return (-1);
}
return (0);
}
static int
ip175c_port_vlan_setup(struct ip17x_softc *sc)
{
struct ip17x_vlan *v;
uint32_t ports[IP175X_NUM_PORTS], reg[IP175X_NUM_PORTS/2];
int i, err, phy;
KASSERT(sc->cpuport == 5, ("cpuport != 5 not supported for IP175C"));
KASSERT(sc->numports == 6, ("numports != 6 not supported for IP175C"));
/* Build the port access masks. */
memset(ports, 0, sizeof(ports));
for (i = 0; i < sc->info.es_nports; i++) {
phy = sc->portphy[i];
v = &sc->vlan[i];
ports[phy] = v->ports;
}
/* Move the cpuport bit to its correct place. */
for (i = 0; i < sc->numports; i++) {
if (ports[i] & (1 << sc->cpuport)) {
ports[i] |= (1 << 7);
ports[i] &= ~(1 << sc->cpuport);
}
}
/* And now build the switch register data. */
memset(reg, 0, sizeof(reg));
for (i = 0; i < (sc->numports / 2); i++)
reg[i] = ports[i * 2] << 8 | ports[i * 2 + 1];
/* Update the switch resgisters. */
err = ip17x_writephy(sc->sc_dev, 29, 19, reg[0]);
if (err == 0)
err = ip17x_writephy(sc->sc_dev, 29, 20, reg[1]);
if (err == 0)
err = ip17x_updatephy(sc->sc_dev, 29, 21, 0xff00, reg[2]);
if (err == 0)
err = ip17x_updatephy(sc->sc_dev, 30, 18, 0x00ff, reg[2]);
return (err);
}
static int
ip175c_dot1q_vlan_setup(struct ip17x_softc *sc)
{
struct ip17x_vlan *v;
uint32_t data;
uint32_t vlans[IP17X_MAX_VLANS];
int i, j;
KASSERT(sc->cpuport == 5, ("cpuport != 5 not supported for IP175C"));
KASSERT(sc->numports == 6, ("numports != 6 not supported for IP175C"));
/* Add and strip VLAN tags. */
data = (sc->addtag & ~(1 << IP175X_CPU_PORT)) << 11;
data |= (sc->striptag & ~(1 << IP175X_CPU_PORT)) << 6;
if (sc->addtag & (1 << IP175X_CPU_PORT))
data |= (1 << 1);
if (sc->striptag & (1 << IP175X_CPU_PORT))
data |= (1 << 0);
if (ip17x_writephy(sc->sc_dev, 29, 23, data))
return (-1);
/* Set the VID_IDX_SEL to 0. */
if (ip17x_updatephy(sc->sc_dev, 30, 9, 0x70, 0))
return (-1);
/* Calculate the port masks. */
memset(vlans, 0, sizeof(vlans));
for (i = 0; i < IP17X_MAX_VLANS; i++) {
v = &sc->vlan[i];
if ((v->vlanid & ETHERSWITCH_VID_VALID) == 0)
continue;
vlans[v->vlanid & ETHERSWITCH_VID_MASK] = v->ports;
}
for (j = 0, i = 1; i <= IP17X_MAX_VLANS / 2; i++) {
data = vlans[j++] & 0x3f;
data |= (vlans[j++] & 0x3f) << 8;
if (ip17x_writephy(sc->sc_dev, 30, i, data))
return (-1);
}
/* Port default VLAN ID. */
for (i = 0; i < sc->numports; i++) {
if (i == IP175X_CPU_PORT) {
if (ip17x_writephy(sc->sc_dev, 29, 30, sc->pvid[i]))
return (-1);
} else {
if (ip17x_writephy(sc->sc_dev, 29, 24 + i, sc->pvid[i]))
return (-1);
}
}
return (0);
}
/*
* Set the Switch configuration.
*/
static int
ip175c_hw_setup(struct ip17x_softc *sc)
{
switch (sc->vlan_mode) {
case ETHERSWITCH_VLAN_PORT:
return (ip175c_port_vlan_setup(sc));
break;
case ETHERSWITCH_VLAN_DOT1Q:
return (ip175c_dot1q_vlan_setup(sc));
break;
}
return (-1);
}
/*
* Set the switch VLAN mode.
*/
static int
ip175c_set_vlan_mode(struct ip17x_softc *sc, uint32_t mode)
{
switch (mode) {
case ETHERSWITCH_VLAN_DOT1Q:
/* Enable VLAN tag processing. */
ip17x_updatephy(sc->sc_dev, 30, 9, 0x80, 0x80);
sc->vlan_mode = mode;
break;
case ETHERSWITCH_VLAN_PORT:
default:
/* Disable VLAN tag processing. */
ip17x_updatephy(sc->sc_dev, 30, 9, 0x80, 0);
sc->vlan_mode = ETHERSWITCH_VLAN_PORT;
break;
};
/* Reset vlans. */
ip17x_reset_vlans(sc, sc->vlan_mode);
/* Update switch configuration. */
ip175c_hw_setup(sc);
return (0);
}
/*
* Get the switch VLAN mode.
*/
static int
ip175c_get_vlan_mode(struct ip17x_softc *sc)
{
return (sc->vlan_mode);
}
void
ip175c_attach(struct ip17x_softc *sc)
{
sc->hal.ip17x_reset = ip175c_reset;
sc->hal.ip17x_hw_setup = ip175c_hw_setup;
sc->hal.ip17x_get_vlan_mode = ip175c_get_vlan_mode;
sc->hal.ip17x_set_vlan_mode = ip175c_set_vlan_mode;
/* Defaults for IP175C. */
sc->cpuport = IP175X_CPU_PORT;
sc->numports = IP175X_NUM_PORTS;
sc->info.es_vlan_caps = ETHERSWITCH_VLAN_PORT | ETHERSWITCH_VLAN_DOT1Q;
device_printf(sc->sc_dev, "type: IP175C\n");
}
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