static void
ex_probemedia(void)
{
int i, j;
struct mtabentry *m;
/* test for presence of connectors */
GO_WINDOW(3);
i = CSR_READ_1(ELINK_W3_RESET_OPTIONS);
j = (CSR_READ_2(ELINK_W3_INTERNAL_CONFIG + 2) & CONFIG_MEDIAMASK)
>> CONFIG_MEDIAMASK_SHIFT;
GO_WINDOW(0);
for (ether_medium = 0, m = mediatab;
ether_medium < sizeof(mediatab) / sizeof(mediatab[0]);
ether_medium++, m++) {
if (j == m->address_cfg) {
if (!(i & m->config_bit)) {
printf("%s not present\n", m->name);
goto bad;
}
printf("using %s\n", m->name);
return;
}
}
printf("unknown connector\n");
bad:
ether_medium = -1;
}
/*
* Back-end attach and configure.
*/
void
epconfig(struct ep_softc *sc, u_short chipset, u_int8_t *enaddr)
{
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh = sc->sc_ioh;
u_int16_t i;
sc->ep_chipset = chipset;
/*
* We could have been groveling around in other register
* windows in the front-end; make sure we're in window 0
* to read the EEPROM.
*/
GO_WINDOW(0);
if (enaddr == NULL) {
/*
* Read the station address from the eeprom.
*/
for (i = 0; i < 3; i++) {
u_int16_t x = ep_read_eeprom(sc, i);
sc->sc_arpcom.ac_enaddr[(i << 1)] = x >> 8;
sc->sc_arpcom.ac_enaddr[(i << 1) + 1] = x;
}
} else {
void
ep_get_media(struct ep_softc *sc)
{
u_int16_t config;
GO_WINDOW(0);
config = inw(BASE + EP_W0_CONFIG_CTRL);
if (config & IS_AUI)
sc->ep_connectors |= AUI;
if (config & IS_BNC)
sc->ep_connectors |= BNC;
if (config & IS_UTP)
sc->ep_connectors |= UTP;
if (!(sc->ep_connectors & 7)) {
if (bootverbose)
if_printf(&sc->arpcom.ac_if, "no connectors!\n");
}
/*
* This works for most of the cards so we'll do it here.
* The cards that require something different can override
* this later on.
*/
sc->ep_connector = inw(BASE + EP_W0_ADDRESS_CFG) >> ACF_CONNECTOR_BITS;
return;
}
static int
ep_mca_attach(device_t dev)
{
struct ep_softc *sc = device_get_softc(dev);
int error = 0;
if ((error = ep_alloc(dev)))
goto bad;
sc->stat = F_ACCESS_32_BITS;
ep_get_media(sc);
GO_WINDOW(sc, 0);
SET_IRQ(sc, rman_get_start(sc->irq));
if ((error = ep_attach(sc)))
goto bad;
if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, NULL, ep_intr,
sc, &sc->ep_intrhand))) {
device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
goto bad;
}
return (0);
bad:
ep_free(dev);
return (error);
}
void
ex_set_media(void)
{
int config0, config1;
CSR_WRITE_2(ELINK_W3_MAC_CONTROL, 0);
if (ether_medium == ETHERMEDIUM_MII)
goto setcfg;
GO_WINDOW(4);
CSR_WRITE_2(ELINK_W4_MEDIA_TYPE, 0);
CSR_WRITE_2(ELINK_COMMAND, STOP_TRANSCEIVER);
delay(800);
switch (ether_medium) {
case ETHERMEDIUM_UTP:
CSR_WRITE_2(ELINK_W4_MEDIA_TYPE,
JABBER_GUARD_ENABLE | LINKBEAT_ENABLE);
break;
case ETHERMEDIUM_BNC:
CSR_WRITE_2(ELINK_COMMAND, START_TRANSCEIVER);
delay(800);
break;
case ETHERMEDIUM_AUI:
CSR_WRITE_2(ELINK_W4_MEDIA_TYPE, SQE_ENABLE);
delay(800);
break;
case ETHERMEDIUM_100TX:
CSR_WRITE_2(ELINK_W4_MEDIA_TYPE, LINKBEAT_ENABLE);
break;
}
setcfg:
GO_WINDOW(3);
config0 = CSR_READ_2(ELINK_W3_INTERNAL_CONFIG);
config1 = CSR_READ_2(ELINK_W3_INTERNAL_CONFIG + 2);
config1 = config1 & ~CONFIG_MEDIAMASK;
config1 |= (mediatab[ether_medium].address_cfg
<< CONFIG_MEDIAMASK_SHIFT);
CSR_WRITE_2(ELINK_W3_INTERNAL_CONFIG, config0);
CSR_WRITE_2(ELINK_W3_INTERNAL_CONFIG + 2, config1);
}
static int
ep_ifmedia_upd(struct ifnet *ifp)
{
struct ep_softc * sc = ifp->if_softc;
int i = 0, j;
GO_WINDOW(0);
outw(BASE + EP_COMMAND, STOP_TRANSCEIVER);
GO_WINDOW(4);
outw(BASE + EP_W4_MEDIA_TYPE, DISABLE_UTP);
GO_WINDOW(0);
switch (IFM_SUBTYPE(sc->ifmedia.ifm_media)) {
case IFM_10_T:
if (sc->ep_connectors & UTP) {
i = ACF_CONNECTOR_UTP;
GO_WINDOW(4);
outw(BASE + EP_W4_MEDIA_TYPE, ENABLE_UTP);
}
break;
case IFM_10_2:
if (sc->ep_connectors & BNC) {
i = ACF_CONNECTOR_BNC;
outw(BASE + EP_COMMAND, START_TRANSCEIVER);
DELAY(DELAY_MULTIPLE * 1000);
}
break;
case IFM_10_5:
if (sc->ep_connectors & AUI)
i = ACF_CONNECTOR_AUI;
break;
default:
i = sc->ep_connector;
if_printf(ifp, "strange connector type in EEPROM: "
"assuming AUI\n");
break;
}
GO_WINDOW(0);
j = inw(BASE + EP_W0_ADDRESS_CFG) & 0x3fff;
outw(BASE + EP_W0_ADDRESS_CFG, j | (i << ACF_CONNECTOR_BITS));
return (0);
}
/*
* Bring device up.
*/
void
ex_init(void)
{
int i;
ex_waitcmd();
EtherStop();
/*
* Set the station address and clear the station mask. The latter
* is needed for 90x cards, 0 is the default for 90xB cards.
*/
GO_WINDOW(2);
for (i = 0; i < 6; i++) {
CSR_WRITE_1(ELINK_W2_ADDR_0 + i,
myethaddr[i]);
CSR_WRITE_1(ELINK_W2_RECVMASK_0 + i, 0);
}
GO_WINDOW(3);
CSR_WRITE_2(ELINK_COMMAND, RX_RESET);
ex_waitcmd();
CSR_WRITE_2(ELINK_COMMAND, TX_RESET);
ex_waitcmd();
CSR_WRITE_2(ELINK_COMMAND, SET_INTR_MASK | 0); /* disable */
CSR_WRITE_2(ELINK_COMMAND, ACK_INTR | 0xff);
ex_set_media();
CSR_WRITE_2(ELINK_COMMAND, SET_RX_FILTER | FIL_INDIVIDUAL | FIL_BRDCST);
CSR_WRITE_4(ELINK_DNLISTPTR, 0);
CSR_WRITE_2(ELINK_COMMAND, TX_ENABLE);
CSR_WRITE_4(ELINK_UPLISTPTR, RECVBUF_PHYS);
CSR_WRITE_2(ELINK_COMMAND, RX_ENABLE);
CSR_WRITE_2(ELINK_COMMAND, ELINK_UPUNSTALL);
GO_WINDOW(1);
}
void
ep_get_macaddr(struct ep_softc *sc, uint8_t *addr)
{
int i;
u_int16_t * macaddr = (u_int16_t *)addr;
GO_WINDOW(0);
for(i = EEPROM_NODE_ADDR_0; i <= EEPROM_NODE_ADDR_2; i++) {
macaddr[i] = htons(get_e(sc, i));
}
return;
}
/*
* Read EEPROM data.
* XXX what to do if EEPROM doesn't unbusy?
*/
uint16_t
ex_read_eeprom(int offset)
{
uint16_t data = 0;
GO_WINDOW(0);
if (ex_eeprom_busy())
goto out;
CSR_WRITE_1(ELINK_W0_EEPROM_COMMAND, READ_EEPROM | (offset & 0x3f));
if (ex_eeprom_busy())
goto out;
data = CSR_READ_2(ELINK_W0_EEPROM_DATA);
out:
return data;
}
int
ep_alloc(device_t dev)
{
struct ep_softc * sc = device_get_softc(dev);
int rid;
int error = 0;
rid = 0;
sc->iobase = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
RF_ACTIVE);
if (!sc->iobase) {
device_printf(dev, "No I/O space?!\n");
error = ENXIO;
goto bad;
}
rid = 0;
sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
if (!sc->irq) {
device_printf(dev, "No irq?!\n");
error = ENXIO;
goto bad;
}
if_initname(&sc->arpcom.ac_if,
device_get_name(dev), device_get_unit(dev));
sc->stat = 0; /* 16 bit access */
sc->ep_io_addr = rman_get_start(sc->iobase);
sc->ep_btag = rman_get_bustag(sc->iobase);
sc->ep_bhandle = rman_get_bushandle(sc->iobase);
sc->ep_connectors = 0;
sc->ep_connector = 0;
GO_WINDOW(0);
sc->epb.cmd_off = 0;
sc->epb.prod_id = get_e(sc, EEPROM_PROD_ID);
sc->epb.res_cfg = get_e(sc, EEPROM_RESOURCE_CFG);
bad:
return (error);
}
static int
ep_pccard_attach(device_t dev)
{
struct ep_softc * sc = device_get_softc(dev);
struct ifnet * ifp = &sc->arpcom.ac_if;
int error = 0;
if ((error = ep_alloc(dev))) {
device_printf(dev, "ep_alloc() failed! (%d)\n", error);
goto bad;
}
sc->epb.cmd_off = 0;
sc->epb.prod_id = get_e(sc, EEPROM_PROD_ID);
if (!ep_pccard_card_attach(&sc->epb)) {
sc->epb.cmd_off = 2;
sc->epb.prod_id = get_e(sc, EEPROM_PROD_ID);
sc->epb.res_cfg = get_e(sc, EEPROM_RESOURCE_CFG);
if (!ep_pccard_card_attach(&sc->epb)) {
device_printf(dev,
"Probe found ID, attach failed so ignore card!\n");
error = ENXIO;
goto bad;
}
}
/* ROM size = 0, ROM base = 0 */
/* For now, ignore AUTO SELECT feature of 3C589B and later. */
outw(BASE + EP_W0_ADDRESS_CFG, get_e(sc, EEPROM_ADDR_CFG) & 0xc000);
/* Fake IRQ must be 3 */
outw(BASE + EP_W0_RESOURCE_CFG, (sc->epb.res_cfg & 0x0fff) | 0x3000);
outw(BASE + EP_W0_PRODUCT_ID, sc->epb.prod_id);
if (sc->epb.mii_trans) {
/*
* turn on the MII transciever
*/
GO_WINDOW(3);
outw(BASE + EP_W3_OPTIONS, 0x8040);
DELAY(1000);
outw(BASE + EP_W3_OPTIONS, 0xc040);
outw(BASE + EP_COMMAND, RX_RESET);
outw(BASE + EP_COMMAND, TX_RESET);
while (inw(BASE + EP_STATUS) & S_COMMAND_IN_PROGRESS);
DELAY(1000);
outw(BASE + EP_W3_OPTIONS, 0x8040);
} else {
ep_get_media(sc);
}
if ((error = ep_attach(sc))) {
device_printf(dev, "ep_attach() failed! (%d)\n", error);
goto bad;
}
error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, ep_intr,
sc, &sc->ep_intrhand,
sc->arpcom.ac_if.if_serializer);
if (error) {
device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
goto bad;
}
ifp->if_cpuid = ithread_cpuid(rman_get_start(sc->irq));
KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
return (0);
bad:
ep_free(dev);
return (error);
}
static int
ep_eisa_attach(device_t dev)
{
struct ep_softc *sc = device_get_softc(dev);
struct resource *eisa_io = NULL;
uint32_t eisa_iobase;
int irq;
int error = 0;
int rid;
rid = 1;
eisa_io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
if (!eisa_io) {
device_printf(dev, "No I/O space?!\n");
error = ENXIO;
goto bad;
}
eisa_iobase = rman_get_start(eisa_io);
/* Reset and Enable the card */
outb(eisa_iobase + EP_W0_CONFIG_CTRL, W0_P4_CMD_RESET_ADAPTER);
DELAY(1000); /* we must wait at least 1 ms */
outb(eisa_iobase + EP_W0_CONFIG_CTRL, W0_P4_CMD_ENABLE_ADAPTER);
/* Now the registers are availible through the lower ioport */
if ((error = ep_alloc(dev))) {
device_printf(dev, "ep_alloc() failed! (%d)\n", error);
goto bad;
}
switch (eisa_get_id(dev)) {
case EISA_DEVICE_ID_3COM_3C579_BNC:
case EISA_DEVICE_ID_3COM_3C579_TP:
sc->stat = F_ACCESS_32_BITS;
break;
}
ep_get_media(sc);
irq = rman_get_start(sc->irq);
if (irq == 9)
irq = 2;
GO_WINDOW(sc, 0);
SET_IRQ(sc, irq);
if ((error = ep_attach(sc))) {
device_printf(dev, "ep_attach() failed! (%d)\n", error);
goto bad;
}
if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
NULL, ep_intr, sc, &sc->ep_intrhand))) {
device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
goto bad;
}
return (0);
bad:
if (eisa_io)
bus_release_resource(dev, SYS_RES_IOPORT, 0, eisa_io);
ep_free(dev);
return (error);
}
static int
ep_pccard_attach(device_t dev)
{
struct ep_softc *sc = device_get_softc(dev);
uint16_t result;
int error = 0;
const struct ep_pccard_product *pp;
if ((pp = ep_pccard_lookup(dev)) == NULL)
panic("ep_pccard_attach: can't find product in attach.");
if (pp->chipset == EP_CHIP_574) {
sc->epb.mii_trans = 1;
sc->epb.cmd_off = 2;
} else {
sc->epb.mii_trans = 0;
sc->epb.cmd_off = 0;
}
if ((error = ep_alloc(dev))) {
device_printf(dev, "ep_alloc() failed! (%d)\n", error);
goto bad;
}
if (pp->chipset == EP_CHIP_C1)
sc->stat |= F_HAS_TX_PLL;
/* ROM size = 0, ROM base = 0 */
/* For now, ignore AUTO SELECT feature of 3C589B and later. */
error = ep_get_e(sc, EEPROM_ADDR_CFG, &result);
CSR_WRITE_2(sc, EP_W0_ADDRESS_CFG, result & 0xc000);
/*
* Fake IRQ must be 3 for 3C589 and 3C589B. 3C589D and newer
* ignore this value. 3C589C is unknown, as are the other
* cards supported by this driver, but it appears to never hurt
* and always helps.
*/
SET_IRQ(sc, 3);
CSR_WRITE_2(sc, EP_W0_PRODUCT_ID, sc->epb.prod_id);
if (sc->epb.mii_trans) {
/*
* turn on the MII transciever
*/
GO_WINDOW(sc, 3);
CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
DELAY(1000);
CSR_WRITE_2(sc, EP_W3_OPTIONS, 0xc040);
CSR_WRITE_2(sc, EP_COMMAND, RX_RESET);
CSR_WRITE_2(sc, EP_COMMAND, TX_RESET);
EP_BUSY_WAIT(sc);
DELAY(1000);
CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
} else
ep_get_media(sc);
/*
* The 3C562 (a-c revisions) stores the MAC in the CIS in a
* way that's unique to 3com. If we have one of these cards,
* scan the CIS for that MAC address, and use it if we find
* it. The NetBSD driver says that the ROADRUNNER chips also
* do this, which may be true, but none of the cards that I
* have include this TUPLE. Always prefer the MAC addr in the
* CIS tuple to the one returned by the card, as it appears that
* only those cards that need it have this special tuple.
*/
if (pccard_cis_scan(dev, ep_pccard_mac, sc->eaddr))
sc->stat |= F_ENADDR_SKIP;
if ((error = ep_attach(sc))) {
device_printf(dev, "ep_attach() failed! (%d)\n", error);
goto bad;
}
if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
NULL, ep_intr, sc, &sc->ep_intrhand))) {
device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
goto bad;
}
return (0);
bad:
ep_free(dev);
return (error);
}
int
ep_attach(struct ep_softc *sc)
{
struct ifnet * ifp = NULL;
struct ifmedia * ifm = NULL;
u_short * p;
uint8_t ether_addr[ETHER_ADDR_LEN];
int i;
sc->gone = 0;
ep_get_macaddr(sc, ether_addr);
/*
* Setup the station address
*/
p = (u_short*)ether_addr;
GO_WINDOW(2);
for (i = 0; i < 3; i++) {
outw(BASE + EP_W2_ADDR_0 + (i * 2), ntohs(p[i]));
}
ifp = &sc->arpcom.ac_if;
ifp->if_softc = sc;
ifp->if_mtu = ETHERMTU;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_start = ep_if_start;
ifp->if_ioctl = ep_if_ioctl;
ifp->if_watchdog = ep_if_watchdog;
ifp->if_init = ep_if_init;
ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
ifq_set_ready(&ifp->if_snd);
if (!sc->epb.mii_trans) {
ifmedia_init(&sc->ifmedia, 0, ep_ifmedia_upd, ep_ifmedia_sts);
if (sc->ep_connectors & AUI)
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_5, 0, NULL);
if (sc->ep_connectors & UTP)
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
if (sc->ep_connectors & BNC)
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_2, 0, NULL);
if (!sc->ep_connectors)
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_NONE, 0, NULL);
ifmedia_set(&sc->ifmedia, IFM_ETHER|ep_media2if_media[sc->ep_connector]);
ifm = &sc->ifmedia;
ifm->ifm_media = ifm->ifm_cur->ifm_media;
ep_ifmedia_upd(ifp);
}
ether_ifattach(ifp, ether_addr, NULL);
#ifdef EP_LOCAL_STATS
sc->rx_no_first = sc->rx_no_mbuf = sc->rx_bpf_disc =
sc->rx_overrunf = sc->rx_overrunl = sc->tx_underrun = 0;
#endif
EP_FSET(sc, F_RX_FIRST);
sc->top = sc->mcur = 0;
return 0;
}
static int
vx_pci_attach(device_t dev)
{
struct vx_softc *sc = device_get_softc(dev);
struct ifnet *ifp = &sc->arpcom.ac_if;
int rid;
rid = PCIR_MAPS;
sc->vx_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
RF_ACTIVE);
if (sc->vx_res == NULL)
goto bad;
sc->vx_btag = rman_get_bustag(sc->vx_res);
sc->vx_bhandle = rman_get_bushandle(sc->vx_res);
rid = 0;
sc->vx_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (sc->vx_irq == NULL)
goto bad;
if (vxattach(dev) == 0) {
goto bad;
}
/* defect check for 3C590 */
if (pci_get_device(dev) == PCI_PRODUCT_3COM_3C590) {
GO_WINDOW(0);
if (vxbusyeeprom(sc))
goto bad;
CSR_WRITE_2(sc, VX_W0_EEPROM_COMMAND,
EEPROM_CMD_RD | EEPROM_SOFT_INFO_2);
if (vxbusyeeprom(sc))
goto bad;
if (!(CSR_READ_2(sc, VX_W0_EEPROM_DATA) & NO_RX_OVN_ANOMALY)) {
kprintf("Warning! Defective early revision adapter!\n");
}
}
ifq_set_cpuid(&ifp->if_snd, rman_get_cpuid(sc->vx_irq));
if (bus_setup_intr(dev, sc->vx_irq, INTR_MPSAFE,
vxintr, sc, &sc->vx_intrhand,
ifp->if_serializer)
) {
ether_ifdetach(&sc->arpcom.ac_if);
goto bad;
}
return(0);
bad:
if (sc->vx_res != NULL)
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->vx_res);
if (sc->vx_irq != NULL)
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->vx_irq);
return(ENXIO);
}
/**************************************************************************
ETH_RESET - Reset adapter
***************************************************************************/
static void t595_reset(struct nic *nic)
{
int i;
/***********************************************************
Reset 3Com 595 card
*************************************************************/
/* stop card */
outw(RX_DISABLE, BASE + VX_COMMAND);
outw(RX_DISCARD_TOP_PACK, BASE + VX_COMMAND);
VX_BUSY_WAIT;
outw(TX_DISABLE, BASE + VX_COMMAND);
outw(STOP_TRANSCEIVER, BASE + VX_COMMAND);
udelay(8000);
outw(RX_RESET, BASE + VX_COMMAND);
VX_BUSY_WAIT;
outw(TX_RESET, BASE + VX_COMMAND);
VX_BUSY_WAIT;
outw(C_INTR_LATCH, BASE + VX_COMMAND);
outw(SET_RD_0_MASK, BASE + VX_COMMAND);
outw(SET_INTR_MASK, BASE + VX_COMMAND);
outw(SET_RX_FILTER, BASE + VX_COMMAND);
/*
* initialize card
*/
VX_BUSY_WAIT;
GO_WINDOW(0);
/* Disable the card */
/* outw(0, BASE + VX_W0_CONFIG_CTRL); */
/* Configure IRQ to none */
/* outw(SET_IRQ(0), BASE + VX_W0_RESOURCE_CFG); */
/* Enable the card */
/* outw(ENABLE_DRQ_IRQ, BASE + VX_W0_CONFIG_CTRL); */
GO_WINDOW(2);
/* Reload the ether_addr. */
for (i = 0; i < ETH_ALEN; i++)
outb(nic->node_addr[i], BASE + VX_W2_ADDR_0 + i);
outw(RX_RESET, BASE + VX_COMMAND);
VX_BUSY_WAIT;
outw(TX_RESET, BASE + VX_COMMAND);
VX_BUSY_WAIT;
/* Window 1 is operating window */
GO_WINDOW(1);
for (i = 0; i < 31; i++)
inb(BASE + VX_W1_TX_STATUS);
outw(SET_RD_0_MASK | S_CARD_FAILURE | S_RX_COMPLETE |
S_TX_COMPLETE | S_TX_AVAIL, BASE + VX_COMMAND);
outw(SET_INTR_MASK | S_CARD_FAILURE | S_RX_COMPLETE |
S_TX_COMPLETE | S_TX_AVAIL, BASE + VX_COMMAND);
/*
* Attempt to get rid of any stray interrupts that occured during
* configuration. On the i386 this isn't possible because one may
* already be queued. However, a single stray interrupt is
* unimportant.
*/
outw(ACK_INTR | 0xff, BASE + VX_COMMAND);
outw(SET_RX_FILTER | FIL_INDIVIDUAL |
FIL_BRDCST|FIL_MULTICAST, BASE + VX_COMMAND);
vxsetlink();
/*{
int i,j;
i = CONNECTOR_TX;
GO_WINDOW(3);
j = inl(BASE + VX_W3_INTERNAL_CFG) & ~INTERNAL_CONNECTOR_MASK;
outl(BASE + VX_W3_INTERNAL_CFG, j | (i <<INTERNAL_CONNECTOR_BITS));
GO_WINDOW(4);
outw(LINKBEAT_ENABLE, BASE + VX_W4_MEDIA_TYPE);
GO_WINDOW(1);
}*/
/* start tranciever and receiver */
outw(RX_ENABLE, BASE + VX_COMMAND);
outw(TX_ENABLE, BASE + VX_COMMAND);
}
/**************************************************************************
ETH_RESET - Reset adapter
***************************************************************************/
void
epreset(void)
{
int i;
/***********************************************************
Reset 3Com 509 card
*************************************************************/
epstop();
/*
* initialize card
*/
while (inw(BASE + EP_STATUS) & S_COMMAND_IN_PROGRESS)
continue;
GO_WINDOW(0);
/* Disable the card */
outw(BASE + EP_W0_CONFIG_CTRL, 0);
/* Configure IRQ to none */
outw(BASE + EP_W0_RESOURCE_CFG, SET_IRQ(0));
/* Enable the card */
outw(BASE + EP_W0_CONFIG_CTRL, ENABLE_DRQ_IRQ);
GO_WINDOW(2);
/* Reload the ether_addr. */
for (i = 0; i < 6; i++)
outb(BASE + EP_W2_ADDR_0 + i, eth_myaddr[i]);
outw(BASE + EP_COMMAND, RX_RESET);
outw(BASE + EP_COMMAND, TX_RESET);
/* Window 1 is operating window */
GO_WINDOW(1);
for (i = 0; i < 31; i++)
inb(BASE + EP_W1_TX_STATUS);
/* get rid of stray intr's */
outw(BASE + EP_COMMAND, ACK_INTR | 0xff);
outw(BASE + EP_COMMAND, SET_RD_0_MASK | S_5_INTS);
outw(BASE + EP_COMMAND, SET_INTR_MASK);
outw(BASE + EP_COMMAND, SET_RX_FILTER | FIL_INDIVIDUAL |
FIL_BRDCST);
/* configure BNC */
if (ether_medium == ETHERMEDIUM_BNC) {
outw(BASE + EP_COMMAND, START_TRANSCEIVER);
delay(1000);
}
/* configure UTP */
if (ether_medium == ETHERMEDIUM_UTP) {
GO_WINDOW(4);
outw(BASE + EP_W4_MEDIA_TYPE, ENABLE_UTP);
GO_WINDOW(1);
}
/* start tranciever and receiver */
outw(BASE + EP_COMMAND, RX_ENABLE);
outw(BASE + EP_COMMAND, TX_ENABLE);
/* set early threshold for minimal packet length */
outw(BASE + EP_COMMAND, SET_RX_EARLY_THRESH | 64);
outw(BASE + EP_COMMAND, SET_TX_START_THRESH | 16);
}
/*
* The order in here seems important. Otherwise we may not receive
* interrupts. ?!
*/
static void
ep_if_init(void *xsc)
{
struct ep_softc *sc = xsc;
struct ifnet *ifp = &sc->arpcom.ac_if;
int i;
if (sc->gone)
return;
crit_enter();
while (inw(BASE + EP_STATUS) & S_COMMAND_IN_PROGRESS);
GO_WINDOW(0);
outw(BASE + EP_COMMAND, STOP_TRANSCEIVER);
GO_WINDOW(4);
outw(BASE + EP_W4_MEDIA_TYPE, DISABLE_UTP);
GO_WINDOW(0);
/* Disable the card */
outw(BASE + EP_W0_CONFIG_CTRL, 0);
/* Enable the card */
outw(BASE + EP_W0_CONFIG_CTRL, ENABLE_DRQ_IRQ);
GO_WINDOW(2);
/* Reload the ether_addr. */
for (i = 0; i < 6; i++)
outb(BASE + EP_W2_ADDR_0 + i, sc->arpcom.ac_enaddr[i]);
outw(BASE + EP_COMMAND, RX_RESET);
outw(BASE + EP_COMMAND, TX_RESET);
while (inw(BASE + EP_STATUS) & S_COMMAND_IN_PROGRESS);
/* Window 1 is operating window */
GO_WINDOW(1);
for (i = 0; i < 31; i++)
inb(BASE + EP_W1_TX_STATUS);
/* get rid of stray intr's */
outw(BASE + EP_COMMAND, ACK_INTR | 0xff);
outw(BASE + EP_COMMAND, SET_RD_0_MASK | S_5_INTS);
outw(BASE + EP_COMMAND, SET_INTR_MASK | S_5_INTS);
if (ifp->if_flags & IFF_PROMISC)
outw(BASE + EP_COMMAND, SET_RX_FILTER | FIL_INDIVIDUAL |
FIL_GROUP | FIL_BRDCST | FIL_ALL);
else
outw(BASE + EP_COMMAND, SET_RX_FILTER | FIL_INDIVIDUAL |
FIL_GROUP | FIL_BRDCST);
if (!sc->epb.mii_trans) {
ep_ifmedia_upd(ifp);
}
outw(BASE + EP_COMMAND, RX_ENABLE);
outw(BASE + EP_COMMAND, TX_ENABLE);
ifp->if_flags |= IFF_RUNNING;
ifq_clr_oactive(&ifp->if_snd); /* just in case */
#ifdef EP_LOCAL_STATS
sc->rx_no_first = sc->rx_no_mbuf =
sc->rx_overrunf = sc->rx_overrunl = sc->tx_underrun = 0;
#endif
EP_FSET(sc, F_RX_FIRST);
if (sc->top) {
m_freem(sc->top);
sc->top = sc->mcur = 0;
}
outw(BASE + EP_COMMAND, SET_RX_EARLY_THRESH | RX_INIT_EARLY_THRESH);
outw(BASE + EP_COMMAND, SET_TX_START_THRESH | 16);
/*
* Store up a bunch of mbuf's for use later. (MAX_MBS). First we free up
* any that we had in case we're being called from intr or somewhere
* else.
*/
GO_WINDOW(1);
if_devstart(ifp);
crit_exit();
}
void
ep_intr(void *arg)
{
struct ep_softc *sc = arg;
struct ifnet *ifp = &sc->arpcom.ac_if;
int status;
/*
* quick fix: Try to detect an interrupt when the card goes away.
*/
if (sc->gone || inw(BASE + EP_STATUS) == 0xffff) {
return;
}
outw(BASE + EP_COMMAND, SET_INTR_MASK); /* disable all Ints */
rescan:
while ((status = inw(BASE + EP_STATUS)) & S_5_INTS) {
/* first acknowledge all interrupt sources */
outw(BASE + EP_COMMAND, ACK_INTR | (status & S_MASK));
if (status & (S_RX_COMPLETE | S_RX_EARLY))
epread(sc);
if (status & S_TX_AVAIL) {
/* we need ACK */
ifp->if_timer = 0;
ifq_clr_oactive(&ifp->if_snd);
GO_WINDOW(1);
inw(BASE + EP_W1_FREE_TX);
if_devstart(ifp);
}
if (status & S_CARD_FAILURE) {
ifp->if_timer = 0;
#ifdef EP_LOCAL_STATS
kprintf("\n");
if_printf(ifp, "\n\tStatus: %x\n", status);
GO_WINDOW(4);
kprintf("\tFIFO Diagnostic: %x\n", inw(BASE + EP_W4_FIFO_DIAG));
kprintf("\tStat: %x\n", sc->stat);
kprintf("\tIpackets=%d, Opackets=%d\n",
ifp->if_ipackets, ifp->if_opackets);
kprintf("\tNOF=%d, NOMB=%d, RXOF=%d, RXOL=%d, TXU=%d\n",
sc->rx_no_first, sc->rx_no_mbuf, sc->rx_overrunf,
sc->rx_overrunl, sc->tx_underrun);
#else
#ifdef DIAGNOSTIC
if_printf(ifp, "Status: %x (input buffer overflow)\n", status);
#else
IFNET_STAT_INC(ifp, ierrors, 1);
#endif
#endif
ep_if_init(sc);
return;
}
if (status & S_TX_COMPLETE) {
ifp->if_timer = 0;
/* we need ACK. we do it at the end */
/*
* We need to read TX_STATUS until we get a 0 status in order to
* turn off the interrupt flag.
*/
while ((status = inb(BASE + EP_W1_TX_STATUS)) & TXS_COMPLETE) {
if (status & TXS_SUCCES_INTR_REQ);
else if (status & (TXS_UNDERRUN | TXS_JABBER | TXS_MAX_COLLISION)) {
outw(BASE + EP_COMMAND, TX_RESET);
if (status & TXS_UNDERRUN) {
#ifdef EP_LOCAL_STATS
sc->tx_underrun++;
#endif
} else {
if (status & TXS_JABBER);
else /* TXS_MAX_COLLISION - we shouldn't get here */
IFNET_STAT_INC(ifp, collisions, 1);
}
IFNET_STAT_INC(ifp, oerrors, 1);
outw(BASE + EP_COMMAND, TX_ENABLE);
/*
* To have a tx_avail_int but giving the chance to the
* Reception
*/
if (!ifq_is_empty(&ifp->if_snd))
outw(BASE + EP_COMMAND, SET_TX_AVAIL_THRESH | 8);
}
outb(BASE + EP_W1_TX_STATUS, 0x0); /* pops up the next
* status */
} /* while */
ifq_clr_oactive(&ifp->if_snd);
GO_WINDOW(1);
inw(BASE + EP_W1_FREE_TX);
if_devstart(ifp);
} /* end TX_COMPLETE */
}
outw(BASE + EP_COMMAND, C_INTR_LATCH); /* ACK int Latch */
if ((status = inw(BASE + EP_STATUS)) & S_5_INTS)
goto rescan;
/* re-enable Ints */
outw(BASE + EP_COMMAND, SET_INTR_MASK | S_5_INTS);
}