C++ (Cpp) enable_rx_tx Beispiele

Beispiel #1

static void au1000_timer(unsigned long data)
{
	struct net_device *dev = (struct net_device *)data;
	struct au1000_private *aup = (struct au1000_private *) dev->priv;
	unsigned char if_port;
	u16 link, speed;

	if (!dev) {
		/* fatal error, don't restart the timer */
		printk(KERN_ERR "au1000_timer error: NULL dev\n");
		return;
	}

	if_port = dev->if_port;

#ifdef CLEANUP	
	if (aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed) == 0) {
		if (link) {
			if (!(dev->flags & IFF_RUNNING)) {
				netif_carrier_on(dev);
				dev->flags |= IFF_RUNNING;
				printk(KERN_INFO "%s: link up\n", dev->name);
			}
		}
		else {
			if (dev->flags & IFF_RUNNING) {
				netif_carrier_off(dev);
				dev->flags &= ~IFF_RUNNING;
				dev->if_port = 0;
				printk(KERN_INFO "%s: link down\n", dev->name);
			}
		}
	}
#endif

	if (link && (dev->if_port != if_port) && 
			(dev->if_port != IF_PORT_UNKNOWN)) {
		hard_stop(dev);
		if (dev->if_port == IF_PORT_100BASEFX) {
			printk(KERN_INFO "%s: going to full duplex\n", 
					dev->name);
			aup->mac->control |= MAC_FULL_DUPLEX;
			au_sync_delay(1);
		}
		else {
			aup->mac->control &= ~MAC_FULL_DUPLEX;
			au_sync_delay(1);
		}
		enable_rx_tx(dev);
	}

	aup->timer.expires = RUN_AT((1*HZ)); 
	aup->timer.data = (unsigned long)dev;
	aup->timer.function = &au1000_timer; /* timer handler */
	add_timer(&aup->timer);

}

Beispiel #2

Datei: au1000_eth.c Projekt: 325116067/semc-qsd8x50

static void
au1000_adjust_link(struct net_device *dev)
{
	struct au1000_private *aup = netdev_priv(dev);
	struct phy_device *phydev = aup->phy_dev;
	unsigned long flags;

	int status_change = 0;

	BUG_ON(!aup->phy_dev);

	spin_lock_irqsave(&aup->lock, flags);

	if (phydev->link && (aup->old_speed != phydev->speed)) {
		// speed changed

		switch(phydev->speed) {
		case SPEED_10:
		case SPEED_100:
			break;
		default:
			printk(KERN_WARNING
			       "%s: Speed (%d) is not 10/100 ???\n",
			       dev->name, phydev->speed);
			break;
		}

		aup->old_speed = phydev->speed;

		status_change = 1;
	}

	if (phydev->link && (aup->old_duplex != phydev->duplex)) {
		// duplex mode changed

		/* switching duplex mode requires to disable rx and tx! */
		hard_stop(dev);

		if (DUPLEX_FULL == phydev->duplex)
			aup->mac->control = ((aup->mac->control
					     | MAC_FULL_DUPLEX)
					     & ~MAC_DISABLE_RX_OWN);
		else
			aup->mac->control = ((aup->mac->control
					      & ~MAC_FULL_DUPLEX)
					     | MAC_DISABLE_RX_OWN);
		au_sync_delay(1);

		enable_rx_tx(dev);
		aup->old_duplex = phydev->duplex;

		status_change = 1;
	}

	if(phydev->link != aup->old_link) {
		// link state changed

		if (!phydev->link) {
			/* link went down */
			aup->old_speed = 0;
			aup->old_duplex = -1;
		}

		aup->old_link = phydev->link;
		status_change = 1;
	}

	spin_unlock_irqrestore(&aup->lock, flags);

	if (status_change) {
		if (phydev->link)
			printk(KERN_INFO "%s: link up (%d/%s)\n",
			       dev->name, phydev->speed,
			       DUPLEX_FULL == phydev->duplex ? "Full" : "Half");
		else
			printk(KERN_INFO "%s: link down\n", dev->name);
	}
}