250 lines
6.4 KiB
C
250 lines
6.4 KiB
C
/*-
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* Copyright (c) 2013 Luiz Otavio O Souza.
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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/kernel.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <dev/mii/mii.h>
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#include <dev/etherswitch/etherswitch.h>
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#include <dev/etherswitch/ip17x/ip17x_phy.h>
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#include <dev/etherswitch/ip17x/ip17x_reg.h>
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#include <dev/etherswitch/ip17x/ip17x_var.h>
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#include <dev/etherswitch/ip17x/ip17x_vlans.h>
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#include <dev/etherswitch/ip17x/ip175c.h>
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/*
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* IP175C specific functions.
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*/
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/*
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* Reset the switch.
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*/
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static int
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ip175c_reset(struct ip17x_softc *sc)
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{
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uint32_t data;
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/* Reset all the switch settings. */
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if (ip17x_writephy(sc->sc_dev, IP175C_RESET_PHY, IP175C_RESET_REG,
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0x175c))
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return (-1);
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DELAY(2000);
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/* Force IP175C mode. */
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data = ip17x_readphy(sc->sc_dev, IP175C_MODE_PHY, IP175C_MODE_REG);
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if (data == 0x175a) {
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if (ip17x_writephy(sc->sc_dev, IP175C_MODE_PHY, IP175C_MODE_REG,
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0x175c))
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return (-1);
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}
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return (0);
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}
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static int
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ip175c_port_vlan_setup(struct ip17x_softc *sc)
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{
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struct ip17x_vlan *v;
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uint32_t ports[IP175X_NUM_PORTS], reg[IP175X_NUM_PORTS/2];
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int i, err, phy;
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KASSERT(sc->cpuport == 5, ("cpuport != 5 not supported for IP175C"));
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KASSERT(sc->numports == 6, ("numports != 6 not supported for IP175C"));
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/* Build the port access masks. */
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memset(ports, 0, sizeof(ports));
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for (i = 0; i < sc->info.es_nports; i++) {
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phy = sc->portphy[i];
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v = &sc->vlan[i];
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ports[phy] = v->ports;
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}
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/* Move the cpuport bit to its correct place. */
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for (i = 0; i < sc->numports; i++) {
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if (ports[i] & (1 << sc->cpuport)) {
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ports[i] |= (1 << 7);
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ports[i] &= ~(1 << sc->cpuport);
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}
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}
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/* And now build the switch register data. */
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memset(reg, 0, sizeof(reg));
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for (i = 0; i < (sc->numports / 2); i++)
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reg[i] = ports[i * 2] << 8 | ports[i * 2 + 1];
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/* Update the switch resgisters. */
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err = ip17x_writephy(sc->sc_dev, 29, 19, reg[0]);
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if (err == 0)
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err = ip17x_writephy(sc->sc_dev, 29, 20, reg[1]);
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if (err == 0)
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err = ip17x_updatephy(sc->sc_dev, 29, 21, 0xff00, reg[2]);
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if (err == 0)
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err = ip17x_updatephy(sc->sc_dev, 30, 18, 0x00ff, reg[2]);
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return (err);
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}
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static int
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ip175c_dot1q_vlan_setup(struct ip17x_softc *sc)
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{
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struct ip17x_vlan *v;
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uint32_t data;
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uint32_t vlans[IP17X_MAX_VLANS];
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int i, j;
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KASSERT(sc->cpuport == 5, ("cpuport != 5 not supported for IP175C"));
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KASSERT(sc->numports == 6, ("numports != 6 not supported for IP175C"));
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/* Add and strip VLAN tags. */
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data = (sc->addtag & ~(1 << IP175X_CPU_PORT)) << 11;
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data |= (sc->striptag & ~(1 << IP175X_CPU_PORT)) << 6;
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if (sc->addtag & (1 << IP175X_CPU_PORT))
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data |= (1 << 1);
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if (sc->striptag & (1 << IP175X_CPU_PORT))
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data |= (1 << 0);
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if (ip17x_writephy(sc->sc_dev, 29, 23, data))
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return (-1);
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/* Set the VID_IDX_SEL to 0. */
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if (ip17x_updatephy(sc->sc_dev, 30, 9, 0x70, 0))
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return (-1);
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/* Calculate the port masks. */
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memset(vlans, 0, sizeof(vlans));
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for (i = 0; i < IP17X_MAX_VLANS; i++) {
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v = &sc->vlan[i];
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if ((v->vlanid & ETHERSWITCH_VID_VALID) == 0)
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continue;
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vlans[v->vlanid & ETHERSWITCH_VID_MASK] = v->ports;
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}
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for (j = 0, i = 1; i <= IP17X_MAX_VLANS / 2; i++) {
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data = vlans[j++] & 0x3f;
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data |= (vlans[j++] & 0x3f) << 8;
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if (ip17x_writephy(sc->sc_dev, 30, i, data))
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return (-1);
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}
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/* Port default VLAN ID. */
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for (i = 0; i < sc->numports; i++) {
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if (i == IP175X_CPU_PORT) {
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if (ip17x_writephy(sc->sc_dev, 29, 30, sc->pvid[i]))
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return (-1);
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} else {
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if (ip17x_writephy(sc->sc_dev, 29, 24 + i, sc->pvid[i]))
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return (-1);
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}
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}
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return (0);
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}
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/*
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* Set the Switch configuration.
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*/
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static int
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ip175c_hw_setup(struct ip17x_softc *sc)
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{
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switch (sc->vlan_mode) {
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case ETHERSWITCH_VLAN_PORT:
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return (ip175c_port_vlan_setup(sc));
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break;
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case ETHERSWITCH_VLAN_DOT1Q:
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return (ip175c_dot1q_vlan_setup(sc));
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break;
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}
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return (-1);
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}
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/*
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* Set the switch VLAN mode.
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*/
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static int
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ip175c_set_vlan_mode(struct ip17x_softc *sc, uint32_t mode)
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{
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switch (mode) {
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case ETHERSWITCH_VLAN_DOT1Q:
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/* Enable VLAN tag processing. */
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ip17x_updatephy(sc->sc_dev, 30, 9, 0x80, 0x80);
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sc->vlan_mode = mode;
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break;
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case ETHERSWITCH_VLAN_PORT:
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default:
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/* Disable VLAN tag processing. */
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ip17x_updatephy(sc->sc_dev, 30, 9, 0x80, 0);
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sc->vlan_mode = ETHERSWITCH_VLAN_PORT;
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break;
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}
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/* Reset vlans. */
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ip17x_reset_vlans(sc, sc->vlan_mode);
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/* Update switch configuration. */
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ip175c_hw_setup(sc);
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return (0);
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}
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/*
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* Get the switch VLAN mode.
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*/
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static int
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ip175c_get_vlan_mode(struct ip17x_softc *sc)
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{
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return (sc->vlan_mode);
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}
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void
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ip175c_attach(struct ip17x_softc *sc)
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{
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sc->hal.ip17x_reset = ip175c_reset;
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sc->hal.ip17x_hw_setup = ip175c_hw_setup;
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sc->hal.ip17x_get_vlan_mode = ip175c_get_vlan_mode;
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sc->hal.ip17x_set_vlan_mode = ip175c_set_vlan_mode;
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/* Defaults for IP175C. */
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sc->cpuport = IP175X_CPU_PORT;
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sc->numports = IP175X_NUM_PORTS;
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sc->info.es_vlan_caps = ETHERSWITCH_VLAN_PORT | ETHERSWITCH_VLAN_DOT1Q;
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device_printf(sc->sc_dev, "type: IP175C\n");
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}
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