static int el3_config(struct net_device *dev, struct ifmap *map)
{
if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
if (map->port <= 3) {
dev->if_port = map->port;
netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
tc589_set_xcvr(dev, dev->if_port);
} else
return -EINVAL;
}
return 0;
}
/* Reset and restore all of the 3c589 registers. */
static void tc589_reset(struct net_device *dev)
{
unsigned int ioaddr = dev->base_addr;
int i;
EL3WINDOW(0);
outw(0x0001, ioaddr + 4); /* Activate board. */
outw(0x3f00, ioaddr + 8); /* Set the IRQ line. */
/* Set the station address in window 2. */
EL3WINDOW(2);
for (i = 0; i < 6; i++)
outb(dev->dev_addr[i], ioaddr + i);
tc589_set_xcvr(dev, dev->if_port);
/* Switch to the stats window, and clear all stats by reading. */
outw(StatsDisable, ioaddr + EL3_CMD);
EL3WINDOW(6);
for (i = 0; i < 9; i++)
inb(ioaddr+i);
inw(ioaddr + 10);
inw(ioaddr + 12);
/* Switch to register set 1 for normal use. */
EL3WINDOW(1);
/* Accept b-cast and phys addr only. */
outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
/* Allow status bits to be seen. */
outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
/* Ack all pending events, and set active indicator mask. */
outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
ioaddr + EL3_CMD);
outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
| AdapterFailure, ioaddr + EL3_CMD);
}
static void media_check(unsigned long arg)
{
struct net_device *dev = (struct net_device *)(arg);
struct el3_private *lp = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
u16 media, errs;
unsigned long flags;
if (!netif_device_present(dev)) goto reschedule;
/* Check for pending interrupt with expired latency timer: with
this, we can limp along even if the interrupt is blocked */
if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
(inb(ioaddr + EL3_TIMER) == 0xff)) {
if (!lp->fast_poll)
netdev_warn(dev, "interrupt(s) dropped!\n");
local_irq_save(flags);
el3_interrupt(dev->irq, dev);
local_irq_restore(flags);
lp->fast_poll = HZ;
}
if (lp->fast_poll) {
lp->fast_poll--;
lp->media.expires = jiffies + HZ/100;
add_timer(&lp->media);
return;
}
/* lp->lock guards the EL3 window. Window should always be 1 except
when the lock is held */
spin_lock_irqsave(&lp->lock, flags);
EL3WINDOW(4);
media = inw(ioaddr+WN4_MEDIA) & 0xc810;
/* Ignore collisions unless we've had no irq's recently */
if (time_before(jiffies, lp->last_irq + HZ)) {
media &= ~0x0010;
} else {
/* Try harder to detect carrier errors */
EL3WINDOW(6);
outw(StatsDisable, ioaddr + EL3_CMD);
errs = inb(ioaddr + 0);
outw(StatsEnable, ioaddr + EL3_CMD);
dev->stats.tx_carrier_errors += errs;
if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
}
if (media != lp->media_status) {
if ((media & lp->media_status & 0x8000) &&
((lp->media_status ^ media) & 0x0800))
netdev_info(dev, "%s link beat\n",
(lp->media_status & 0x0800 ? "lost" : "found"));
else if ((media & lp->media_status & 0x4000) &&
((lp->media_status ^ media) & 0x0010))
netdev_info(dev, "coax cable %s\n",
(lp->media_status & 0x0010 ? "ok" : "problem"));
if (dev->if_port == 0) {
if (media & 0x8000) {
if (media & 0x0800)
netdev_info(dev, "flipped to 10baseT\n");
else
tc589_set_xcvr(dev, 2);
} else if (media & 0x4000) {
if (media & 0x0010)
tc589_set_xcvr(dev, 1);
else
netdev_info(dev, "flipped to 10base2\n");
}
}
lp->media_status = media;
}
EL3WINDOW(1);
spin_unlock_irqrestore(&lp->lock, flags);
reschedule:
lp->media.expires = jiffies + HZ;
add_timer(&lp->media);
}
static void media_check(u_long arg)
{
struct el3_private *lp = (struct el3_private *)(arg);
struct net_device *dev = &lp->dev;
ioaddr_t ioaddr = dev->base_addr;
u_short media, errs;
u_long flags;
if (!netif_device_present(dev)) goto reschedule;
EL3WINDOW(1);
/* Check for pending interrupt with expired latency timer: with
this, we can limp along even if the interrupt is blocked */
if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
(inb(ioaddr + EL3_TIMER) == 0xff)) {
if (!lp->fast_poll)
printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
el3_interrupt(dev->irq, lp, NULL);
lp->fast_poll = HZ;
}
if (lp->fast_poll) {
lp->fast_poll--;
lp->media.expires = jiffies + 1;
add_timer(&lp->media);
return;
}
save_flags(flags);
cli();
EL3WINDOW(4);
media = inw(ioaddr+WN4_MEDIA) & 0xc810;
/* Ignore collisions unless we've had no irq's recently */
if (jiffies - lp->last_irq < HZ) {
media &= ~0x0010;
} else {
/* Try harder to detect carrier errors */
EL3WINDOW(6);
outw(StatsDisable, ioaddr + EL3_CMD);
errs = inb(ioaddr + 0);
outw(StatsEnable, ioaddr + EL3_CMD);
lp->stats.tx_carrier_errors += errs;
if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
}
if (media != lp->media_status) {
if ((media & lp->media_status & 0x8000) &&
((lp->media_status ^ media) & 0x0800))
printk(KERN_INFO "%s: %s link beat\n", dev->name,
(lp->media_status & 0x0800 ? "lost" : "found"));
else if ((media & lp->media_status & 0x4000) &&
((lp->media_status ^ media) & 0x0010))
printk(KERN_INFO "%s: coax cable %s\n", dev->name,
(lp->media_status & 0x0010 ? "ok" : "problem"));
if (dev->if_port == 0) {
if (media & 0x8000) {
if (media & 0x0800)
printk(KERN_INFO "%s: flipped to 10baseT\n",
dev->name);
else
tc589_set_xcvr(dev, 2);
} else if (media & 0x4000) {
if (media & 0x0010)
tc589_set_xcvr(dev, 1);
else
printk(KERN_INFO "%s: flipped to 10base2\n",
dev->name);
}
}
lp->media_status = media;
}
EL3WINDOW(1);
restore_flags(flags);
reschedule:
lp->media.expires = jiffies + HZ;
add_timer(&lp->media);
}
