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freebsd-dev/sys/dev/etherswitch/infineon/adm6996fc.c
Michael Zhilin 0774131e27 [etherswitch] check if_alloc returns NULL 
This patch is cosmetic. It checks if allocation of ifnet structure failed.
It's better to have this check rather than assume positive scenario.

Submitted by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
Reported by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
2018-01-24 21:33:18 +00:00

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/*-
* Copyright (c) 2016 Hiroki Mori
* 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.
*
* $FreeBSD$
*/
/*
* This is Infineon ADM6996FC/M/MX driver code on etherswitch framework.
* Support PORT and DOT1Q VLAN.
* This code suppose ADM6996FC SDC/SDIO connect to SOC network interface
* MDC/MDIO.
* This code development on Netgear WGR614Cv7.
* etherswitchcfg command port option support addtag.
*/
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/errno.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.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_var.h>
#include <net/ethernet.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <machine/bus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>
#include "mdio_if.h"
#include "miibus_if.h"
#include "etherswitch_if.h"
#define ADM6996FC_PRODUCT_CODE 0x7102
#define ADM6996FC_SC3 0x11
#define ADM6996FC_VF0L 0x40
#define ADM6996FC_VF0H 0x41
#define ADM6996FC_CI0 0xa0
#define ADM6996FC_CI1 0xa1
#define ADM6996FC_PHY_C0 0x200
#define ADM6996FC_PC_SHIFT 4
#define ADM6996FC_TBV_SHIFT 5
#define ADM6996FC_PVID_SHIFT 10
#define ADM6996FC_OPTE_SHIFT 4
#define ADM6996FC_VV_SHIFT 15
#define ADM6996FC_PHY_SIZE 0x20
MALLOC_DECLARE(M_ADM6996FC);
MALLOC_DEFINE(M_ADM6996FC, "adm6996fc", "adm6996fc data structures");
struct adm6996fc_softc {
struct mtx sc_mtx; /* serialize access to softc */
device_t sc_dev;
int vlan_mode;
int media; /* cpu port media */
int cpuport; /* which PHY is connected to the CPU */
int phymask; /* PHYs we manage */
int numports; /* number of ports */
int ifpport[MII_NPHY];
int *portphy;
char **ifname;
device_t **miibus;
struct ifnet **ifp;
struct callout callout_tick;
etherswitch_info_t info;
};
#define ADM6996FC_LOCK(_sc) \
mtx_lock(&(_sc)->sc_mtx)
#define ADM6996FC_UNLOCK(_sc) \
mtx_unlock(&(_sc)->sc_mtx)
#define ADM6996FC_LOCK_ASSERT(_sc, _what) \
mtx_assert(&(_sc)->sc_mtx, (_what))
#define ADM6996FC_TRYLOCK(_sc) \
mtx_trylock(&(_sc)->sc_mtx)
#if defined(DEBUG)
#define DPRINTF(dev, args...) device_printf(dev, args)
#else
#define DPRINTF(dev, args...)
#endif
static inline int adm6996fc_portforphy(struct adm6996fc_softc *, int);
static void adm6996fc_tick(void *);
static int adm6996fc_ifmedia_upd(struct ifnet *);
static void adm6996fc_ifmedia_sts(struct ifnet *, struct ifmediareq *);
#define ADM6996FC_READREG(dev, x) \
MDIO_READREG(dev, ((x) >> 5), ((x) & 0x1f));
#define ADM6996FC_WRITEREG(dev, x, v) \
MDIO_WRITEREG(dev, ((x) >> 5), ((x) & 0x1f), v);
#define ADM6996FC_PVIDBYDATA(data1, data2) \
((((data1) >> ADM6996FC_PVID_SHIFT) & 0x0f) | ((data2) << 4))
static int
adm6996fc_probe(device_t dev)
{
int data1, data2;
int pc;
struct adm6996fc_softc *sc;
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
data1 = ADM6996FC_READREG(device_get_parent(dev), ADM6996FC_CI0);
data2 = ADM6996FC_READREG(device_get_parent(dev), ADM6996FC_CI1);
pc = ((data2 << 16) | data1) >> ADM6996FC_PC_SHIFT;
if (bootverbose)
device_printf(dev,"Chip Identifier Register %x %x\n", data1,
data2);
/* check Product Code */
if (pc != ADM6996FC_PRODUCT_CODE) {
return (ENXIO);
}
device_set_desc_copy(dev, "Infineon ADM6996FC/M/MX MDIO switch driver");
return (BUS_PROBE_DEFAULT);
}
static int
adm6996fc_attach_phys(struct adm6996fc_softc *sc)
{
int phy, port, err;
char name[IFNAMSIZ];
port = 0;
err = 0;
/* PHYs need an interface, so we generate a dummy one */
snprintf(name, IFNAMSIZ, "%sport", device_get_nameunit(sc->sc_dev));
for (phy = 0; phy < sc->numports; phy++) {
if (((1 << phy) & sc->phymask) == 0)
continue;
sc->ifpport[phy] = port;
sc->portphy[port] = phy;
sc->ifp[port] = if_alloc(IFT_ETHER);
if (sc->ifp[port] == NULL) {
device_printf(sc->sc_dev, "couldn't allocate ifnet structure\n");
err = ENOMEM;
break;
}
sc->ifp[port]->if_softc = sc;
sc->ifp[port]->if_flags |= IFF_UP | IFF_BROADCAST |
IFF_DRV_RUNNING | IFF_SIMPLEX;
if_initname(sc->ifp[port], name, port);
sc->miibus[port] = malloc(sizeof(device_t), M_ADM6996FC,
M_WAITOK | M_ZERO);
if (sc->miibus[port] == NULL) {
err = ENOMEM;
goto failed;
}
err = mii_attach(sc->sc_dev, sc->miibus[port], sc->ifp[port],
adm6996fc_ifmedia_upd, adm6996fc_ifmedia_sts, \
BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, 0);
DPRINTF(sc->sc_dev, "%s attached to pseudo interface %s\n",
device_get_nameunit(*sc->miibus[port]),
sc->ifp[port]->if_xname);
if (err != 0) {
device_printf(sc->sc_dev,
"attaching PHY %d failed\n",
phy);
goto failed;
}
++port;
}
sc->info.es_nports = port;
if (sc->cpuport != -1) {
/* assume cpuport is last one */
sc->ifpport[sc->cpuport] = port;
sc->portphy[port] = sc->cpuport;
++sc->info.es_nports;
}
return (0);
failed:
for (phy = 0; phy < sc->numports; phy++) {
if (((1 << phy) & sc->phymask) == 0)
continue;
port = adm6996fc_portforphy(sc, phy);
if (sc->miibus[port] != NULL)
device_delete_child(sc->sc_dev, (*sc->miibus[port]));
if (sc->ifp[port] != NULL)
if_free(sc->ifp[port]);
if (sc->ifname[port] != NULL)
free(sc->ifname[port], M_ADM6996FC);
if (sc->miibus[port] != NULL)
free(sc->miibus[port], M_ADM6996FC);
}
return (err);
}
static int
adm6996fc_attach(device_t dev)
{
struct adm6996fc_softc *sc;
int err;
err = 0;
sc = device_get_softc(dev);
sc->sc_dev = dev;
mtx_init(&sc->sc_mtx, "adm6996fc", NULL, MTX_DEF);
strlcpy(sc->info.es_name, device_get_desc(dev),
sizeof(sc->info.es_name));
/* ADM6996FC Defaults */
sc->numports = 6;
sc->phymask = 0x1f;
sc->cpuport = 5;
sc->media = 100;
sc->info.es_nvlangroups = 16;
sc->info.es_vlan_caps = ETHERSWITCH_VLAN_PORT | ETHERSWITCH_VLAN_DOT1Q;
sc->ifp = malloc(sizeof(struct ifnet *) * sc->numports, M_ADM6996FC,
M_WAITOK | M_ZERO);
sc->ifname = malloc(sizeof(char *) * sc->numports, M_ADM6996FC,
M_WAITOK | M_ZERO);
sc->miibus = malloc(sizeof(device_t *) * sc->numports, M_ADM6996FC,
M_WAITOK | M_ZERO);
sc->portphy = malloc(sizeof(int) * sc->numports, M_ADM6996FC,
M_WAITOK | M_ZERO);
if (sc->ifp == NULL || sc->ifname == NULL || sc->miibus == NULL ||
sc->portphy == NULL) {
err = ENOMEM;
goto failed;
}
/*
* Attach the PHYs and complete the bus enumeration.
*/
err = adm6996fc_attach_phys(sc);
if (err != 0)
goto failed;
bus_generic_probe(dev);
bus_enumerate_hinted_children(dev);
err = bus_generic_attach(dev);
if (err != 0)
goto failed;
callout_init(&sc->callout_tick, 0);
adm6996fc_tick(sc);
return (0);
failed:
if (sc->portphy != NULL)
free(sc->portphy, M_ADM6996FC);
if (sc->miibus != NULL)
free(sc->miibus, M_ADM6996FC);
if (sc->ifname != NULL)
free(sc->ifname, M_ADM6996FC);
if (sc->ifp != NULL)
free(sc->ifp, M_ADM6996FC);
return (err);
}
static int
adm6996fc_detach(device_t dev)
{
struct adm6996fc_softc *sc;
int i, port;
sc = device_get_softc(dev);
callout_drain(&sc->callout_tick);
for (i = 0; i < MII_NPHY; i++) {
if (((1 << i) & sc->phymask) == 0)
continue;
port = adm6996fc_portforphy(sc, i);
if (sc->miibus[port] != NULL)
device_delete_child(dev, (*sc->miibus[port]));
if (sc->ifp[port] != NULL)
if_free(sc->ifp[port]);
free(sc->ifname[port], M_ADM6996FC);
free(sc->miibus[port], M_ADM6996FC);
}
free(sc->portphy, M_ADM6996FC);
free(sc->miibus, M_ADM6996FC);
free(sc->ifname, M_ADM6996FC);
free(sc->ifp, M_ADM6996FC);
bus_generic_detach(dev);
mtx_destroy(&sc->sc_mtx);
return (0);
}
/*
* Convert PHY number to port number.
*/
static inline int
adm6996fc_portforphy(struct adm6996fc_softc *sc, int phy)
{
return (sc->ifpport[phy]);
}
static inline struct mii_data *
adm6996fc_miiforport(struct adm6996fc_softc *sc, int port)
{
if (port < 0 || port > sc->numports)
return (NULL);
if (port == sc->cpuport)
return (NULL);
return (device_get_softc(*sc->miibus[port]));
}
static inline struct ifnet *
adm6996fc_ifpforport(struct adm6996fc_softc *sc, int port)
{
if (port < 0 || port > sc->numports)
return (NULL);
return (sc->ifp[port]);
}
/*
* Poll the status for all PHYs.
*/
static void
adm6996fc_miipollstat(struct adm6996fc_softc *sc)
{
int i, port;
struct mii_data *mii;
struct mii_softc *miisc;
ADM6996FC_LOCK_ASSERT(sc, MA_NOTOWNED);
for (i = 0; i < MII_NPHY; i++) {
if (((1 << i) & sc->phymask) == 0)
continue;
port = adm6996fc_portforphy(sc, i);
if ((*sc->miibus[port]) == NULL)
continue;
mii = device_get_softc(*sc->miibus[port]);
LIST_FOREACH(miisc, &mii->mii_phys, mii_list) {
if (IFM_INST(mii->mii_media.ifm_cur->ifm_media) !=
miisc->mii_inst)
continue;
ukphy_status(miisc);
mii_phy_update(miisc, MII_POLLSTAT);
}
}
}
static void
adm6996fc_tick(void *arg)
{
struct adm6996fc_softc *sc;
sc = arg;
adm6996fc_miipollstat(sc);
callout_reset(&sc->callout_tick, hz, adm6996fc_tick, sc);
}
static void
adm6996fc_lock(device_t dev)
{
struct adm6996fc_softc *sc;
sc = device_get_softc(dev);
ADM6996FC_LOCK_ASSERT(sc, MA_NOTOWNED);
ADM6996FC_LOCK(sc);
}
static void
adm6996fc_unlock(device_t dev)
{
struct adm6996fc_softc *sc;
sc = device_get_softc(dev);
ADM6996FC_LOCK_ASSERT(sc, MA_OWNED);
ADM6996FC_UNLOCK(sc);
}
static etherswitch_info_t *
adm6996fc_getinfo(device_t dev)
{
struct adm6996fc_softc *sc;
sc = device_get_softc(dev);
return (&sc->info);
}
static int
adm6996fc_getport(device_t dev, etherswitch_port_t *p)
{
struct adm6996fc_softc *sc;
struct mii_data *mii;
struct ifmediareq *ifmr;
device_t parent;
int err, phy;
int data1, data2;
int bcaddr[6] = {0x01, 0x03, 0x05, 0x07, 0x08, 0x09};
int vidaddr[6] = {0x28, 0x29, 0x2a, 0x2b, 0x2b, 0x2c};
sc = device_get_softc(dev);
ifmr = &p->es_ifmr;
if (p->es_port < 0 || p->es_port >= sc->numports)
return (ENXIO);
parent = device_get_parent(dev);
if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
data1 = ADM6996FC_READREG(parent, bcaddr[p->es_port]);
data2 = ADM6996FC_READREG(parent, vidaddr[p->es_port]);
/* only port 4 is hi bit */
if (p->es_port == 4)
data2 = (data2 >> 8) & 0xff;
else
data2 = data2 & 0xff;
p->es_pvid = ADM6996FC_PVIDBYDATA(data1, data2);
if (((data1 >> ADM6996FC_OPTE_SHIFT) & 0x01) == 1)
p->es_flags |= ETHERSWITCH_PORT_ADDTAG;
} else {
p->es_pvid = 0;
}
phy = sc->portphy[p->es_port];
mii = adm6996fc_miiforport(sc, p->es_port);
if (sc->cpuport != -1 && phy == sc->cpuport) {
/* fill in fixed values for CPU port */
p->es_flags |= ETHERSWITCH_PORT_CPU;
ifmr->ifm_count = 0;
if (sc->media == 100)
ifmr->ifm_current = ifmr->ifm_active =
IFM_ETHER | IFM_100_TX | IFM_FDX;
else
ifmr->ifm_current = ifmr->ifm_active =
IFM_ETHER | IFM_1000_T | IFM_FDX;
ifmr->ifm_mask = 0;
ifmr->ifm_status = IFM_ACTIVE | IFM_AVALID;
} else if (mii != NULL) {
err = ifmedia_ioctl(mii->mii_ifp, &p->es_ifr,
&mii->mii_media, SIOCGIFMEDIA);
if (err)
return (err);
} else {
return (ENXIO);
}
return (0);
}
static int
adm6996fc_setport(device_t dev, etherswitch_port_t *p)
{
struct adm6996fc_softc *sc;
struct ifmedia *ifm;
struct mii_data *mii;
struct ifnet *ifp;
device_t parent;
int err;
int data;
int bcaddr[6] = {0x01, 0x03, 0x05, 0x07, 0x08, 0x09};
int vidaddr[6] = {0x28, 0x29, 0x2a, 0x2b, 0x2b, 0x2c};
sc = device_get_softc(dev);
parent = device_get_parent(dev);
if (p->es_port < 0 || p->es_port >= sc->numports)
return (ENXIO);
if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
data = ADM6996FC_READREG(parent, bcaddr[p->es_port]);
data &= ~(0xf << 10);
data |= (p->es_pvid & 0xf) << ADM6996FC_PVID_SHIFT;
if (p->es_flags & ETHERSWITCH_PORT_ADDTAG)
data |= 1 << ADM6996FC_OPTE_SHIFT;
else
data &= ~(1 << ADM6996FC_OPTE_SHIFT);
ADM6996FC_WRITEREG(parent, bcaddr[p->es_port], data);
data = ADM6996FC_READREG(parent, vidaddr[p->es_port]);
/* only port 4 is hi bit */
if (p->es_port == 4) {
data &= ~(0xff << 8);
data = data | (((p->es_pvid >> 4) & 0xff) << 8);
} else {
data &= ~0xff;
data = data | ((p->es_pvid >> 4) & 0xff);
}
ADM6996FC_WRITEREG(parent, vidaddr[p->es_port], data);
err = 0;
} else {
if (sc->portphy[p->es_port] == sc->cpuport)
return (ENXIO);
}
if (sc->portphy[p->es_port] != sc->cpuport) {
mii = adm6996fc_miiforport(sc, p->es_port);
if (mii == NULL)
return (ENXIO);
ifp = adm6996fc_ifpforport(sc, p->es_port);
ifm = &mii->mii_media;
err = ifmedia_ioctl(ifp, &p->es_ifr, ifm, SIOCSIFMEDIA);
}
return (err);
}
static int
adm6996fc_getvgroup(device_t dev, etherswitch_vlangroup_t *vg)
{
struct adm6996fc_softc *sc;
device_t parent;
int datahi, datalo;
sc = device_get_softc(dev);
parent = device_get_parent(dev);
if (sc->vlan_mode == ETHERSWITCH_VLAN_PORT) {
if (vg->es_vlangroup <= 5) {
vg->es_vid = ETHERSWITCH_VID_VALID;
vg->es_vid |= vg->es_vlangroup;
datalo = ADM6996FC_READREG(parent,
ADM6996FC_VF0L + 2 * vg->es_vlangroup);
datahi = ADM6996FC_READREG(parent,
ADM6996FC_VF0H + 2 * vg->es_vlangroup);
vg->es_member_ports = datalo & 0x3f;
vg->es_untagged_ports = vg->es_member_ports;
vg->es_fid = 0;
} else {
vg->es_vid = 0;
}
} else if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
datalo = ADM6996FC_READREG(parent,
ADM6996FC_VF0L + 2 * vg->es_vlangroup);
datahi = ADM6996FC_READREG(parent,
ADM6996FC_VF0H + 2 * vg->es_vlangroup);
if (datahi & (1 << ADM6996FC_VV_SHIFT)) {
vg->es_vid = ETHERSWITCH_VID_VALID;
vg->es_vid |= datahi & 0xfff;
vg->es_member_ports = datalo & 0x3f;
vg->es_untagged_ports = (~datalo >> 6) & 0x3f;
vg->es_fid = 0;
} else {
vg->es_fid = 0;
}
} else {
vg->es_fid = 0;
}
return (0);
}
static int
adm6996fc_setvgroup(device_t dev, etherswitch_vlangroup_t *vg)
{
struct adm6996fc_softc *sc;
device_t parent;
sc = device_get_softc(dev);
parent = device_get_parent(dev);
if (sc->vlan_mode == ETHERSWITCH_VLAN_PORT) {
ADM6996FC_WRITEREG(parent, ADM6996FC_VF0L + 2 * vg->es_vlangroup,
vg->es_member_ports);
} else if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
ADM6996FC_WRITEREG(parent, ADM6996FC_VF0L + 2 * vg->es_vlangroup,
vg->es_member_ports | ((~vg->es_untagged_ports & 0x3f)<< 6));
ADM6996FC_WRITEREG(parent, ADM6996FC_VF0H + 2 * vg->es_vlangroup,
(1 << ADM6996FC_VV_SHIFT) | vg->es_vid);
}
return (0);
}
static int
adm6996fc_getconf(device_t dev, etherswitch_conf_t *conf)
{
struct adm6996fc_softc *sc;
sc = device_get_softc(dev);
/* Return the VLAN mode. */
conf->cmd = ETHERSWITCH_CONF_VLAN_MODE;
conf->vlan_mode = sc->vlan_mode;
return (0);
}
static int
adm6996fc_setconf(device_t dev, etherswitch_conf_t *conf)
{
struct adm6996fc_softc *sc;
device_t parent;
int i;
int data;
int bcaddr[6] = {0x01, 0x03, 0x05, 0x07, 0x08, 0x09};
sc = device_get_softc(dev);
parent = device_get_parent(dev);
if ((conf->cmd & ETHERSWITCH_CONF_VLAN_MODE) == 0)
return (0);
if (conf->vlan_mode == ETHERSWITCH_VLAN_PORT) {
sc->vlan_mode = ETHERSWITCH_VLAN_PORT;
data = ADM6996FC_READREG(parent, ADM6996FC_SC3);
data &= ~(1 << ADM6996FC_TBV_SHIFT);
ADM6996FC_WRITEREG(parent, ADM6996FC_SC3, data);
for (i = 0;i <= 5; ++i) {
data = ADM6996FC_READREG(parent, bcaddr[i]);
data &= ~(0xf << 10);
data |= (i << 10);
ADM6996FC_WRITEREG(parent, bcaddr[i], data);
ADM6996FC_WRITEREG(parent, ADM6996FC_VF0L + 2 * i,
0x003f);
ADM6996FC_WRITEREG(parent, ADM6996FC_VF0H + 2 * i,
(1 << ADM6996FC_VV_SHIFT) | 1);
}
} else if (conf->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
sc->vlan_mode = ETHERSWITCH_VLAN_DOT1Q;
data = ADM6996FC_READREG(parent, ADM6996FC_SC3);
data |= (1 << ADM6996FC_TBV_SHIFT);
ADM6996FC_WRITEREG(parent, ADM6996FC_SC3, data);
for (i = 0;i <= 5; ++i) {
data = ADM6996FC_READREG(parent, bcaddr[i]);
/* Private VID set 1 */
data &= ~(0xf << 10);
data |= (1 << 10);
ADM6996FC_WRITEREG(parent, bcaddr[i], data);
}
for (i = 2;i <= 15; ++i) {
ADM6996FC_WRITEREG(parent, ADM6996FC_VF0H + 2 * i,
0x0000);
}
} else {
/*
ADM6996FC have no VLAN off. Then set Port base and
add all port to member. Use VLAN Filter 1 is reset
default.
*/
sc->vlan_mode = 0;
data = ADM6996FC_READREG(parent, ADM6996FC_SC3);
data &= ~(1 << ADM6996FC_TBV_SHIFT);
ADM6996FC_WRITEREG(parent, ADM6996FC_SC3, data);
for (i = 0;i <= 5; ++i) {
data = ADM6996FC_READREG(parent, bcaddr[i]);
data &= ~(0xf << 10);
data |= (1 << 10);
if (i == 5)
data &= ~(1 << 4);
ADM6996FC_WRITEREG(parent, bcaddr[i], data);
}
/* default setting */
ADM6996FC_WRITEREG(parent, ADM6996FC_VF0L + 2, 0x003f);
ADM6996FC_WRITEREG(parent, ADM6996FC_VF0H + 2,
(1 << ADM6996FC_VV_SHIFT) | 1);
}
return (0);
}
static void
adm6996fc_statchg(device_t dev)
{
DPRINTF(dev, "%s\n", __func__);
}
static int
adm6996fc_ifmedia_upd(struct ifnet *ifp)
{
struct adm6996fc_softc *sc;
struct mii_data *mii;
sc = ifp->if_softc;
mii = adm6996fc_miiforport(sc, ifp->if_dunit);
DPRINTF(sc->sc_dev, "%s\n", __func__);
if (mii == NULL)
return (ENXIO);
mii_mediachg(mii);
return (0);
}
static void
adm6996fc_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct adm6996fc_softc *sc;
struct mii_data *mii;
sc = ifp->if_softc;
mii = adm6996fc_miiforport(sc, ifp->if_dunit);
DPRINTF(sc->sc_dev, "%s\n", __func__);
if (mii == NULL)
return;
mii_pollstat(mii);
ifmr->ifm_active = mii->mii_media_active;
ifmr->ifm_status = mii->mii_media_status;
}
static int
adm6996fc_readphy(device_t dev, int phy, int reg)
{
struct adm6996fc_softc *sc;
int data;
sc = device_get_softc(dev);
ADM6996FC_LOCK_ASSERT(sc, MA_NOTOWNED);
if (phy < 0 || phy >= 32)
return (ENXIO);
if (reg < 0 || reg >= 32)
return (ENXIO);
ADM6996FC_LOCK(sc);
data = ADM6996FC_READREG(device_get_parent(dev),
(ADM6996FC_PHY_C0 + ADM6996FC_PHY_SIZE * phy) + reg);
ADM6996FC_UNLOCK(sc);
return (data);
}
static int
adm6996fc_writephy(device_t dev, int phy, int reg, int data)
{
struct adm6996fc_softc *sc;
int err;
sc = device_get_softc(dev);
ADM6996FC_LOCK_ASSERT(sc, MA_NOTOWNED);
if (phy < 0 || phy >= 32)
return (ENXIO);
if (reg < 0 || reg >= 32)
return (ENXIO);
ADM6996FC_LOCK(sc);
err = ADM6996FC_WRITEREG(device_get_parent(dev),
(ADM6996FC_PHY_C0 + ADM6996FC_PHY_SIZE * phy) + reg, data);
ADM6996FC_UNLOCK(sc);
return (err);
}
static int
adm6996fc_readreg(device_t dev, int addr)
{
return ADM6996FC_READREG(device_get_parent(dev), addr);
}
static int
adm6996fc_writereg(device_t dev, int addr, int value)
{
int err;
err = ADM6996FC_WRITEREG(device_get_parent(dev), addr, value);
return (err);
}
static device_method_t adm6996fc_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, adm6996fc_probe),
DEVMETHOD(device_attach, adm6996fc_attach),
DEVMETHOD(device_detach, adm6996fc_detach),
/* bus interface */
DEVMETHOD(bus_add_child, device_add_child_ordered),
/* MII interface */
DEVMETHOD(miibus_readreg, adm6996fc_readphy),
DEVMETHOD(miibus_writereg, adm6996fc_writephy),
DEVMETHOD(miibus_statchg, adm6996fc_statchg),
/* MDIO interface */
DEVMETHOD(mdio_readreg, adm6996fc_readphy),
DEVMETHOD(mdio_writereg, adm6996fc_writephy),
/* etherswitch interface */
DEVMETHOD(etherswitch_lock, adm6996fc_lock),
DEVMETHOD(etherswitch_unlock, adm6996fc_unlock),
DEVMETHOD(etherswitch_getinfo, adm6996fc_getinfo),
DEVMETHOD(etherswitch_readreg, adm6996fc_readreg),
DEVMETHOD(etherswitch_writereg, adm6996fc_writereg),
DEVMETHOD(etherswitch_readphyreg, adm6996fc_readphy),
DEVMETHOD(etherswitch_writephyreg, adm6996fc_writephy),
DEVMETHOD(etherswitch_getport, adm6996fc_getport),
DEVMETHOD(etherswitch_setport, adm6996fc_setport),
DEVMETHOD(etherswitch_getvgroup, adm6996fc_getvgroup),
DEVMETHOD(etherswitch_setvgroup, adm6996fc_setvgroup),
DEVMETHOD(etherswitch_setconf, adm6996fc_setconf),
DEVMETHOD(etherswitch_getconf, adm6996fc_getconf),
DEVMETHOD_END
};
DEFINE_CLASS_0(adm6996fc, adm6996fc_driver, adm6996fc_methods,
sizeof(struct adm6996fc_softc));
static devclass_t adm6996fc_devclass;
DRIVER_MODULE(adm6996fc, mdio, adm6996fc_driver, adm6996fc_devclass, 0, 0);
DRIVER_MODULE(miibus, adm6996fc, miibus_driver, miibus_devclass, 0, 0);
DRIVER_MODULE(mdio, adm6996fc, mdio_driver, mdio_devclass, 0, 0);
DRIVER_MODULE(etherswitch, adm6996fc, etherswitch_driver, etherswitch_devclass,
0, 0);
MODULE_VERSION(adm6996fc, 1);
MODULE_DEPEND(adm6996fc, miibus, 1, 1, 1); /* XXX which versions? */
MODULE_DEPEND(adm6996fc, etherswitch, 1, 1, 1); /* XXX which versions? */
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