+static irqreturn_t dm9000_wol_interrupt(int irq, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+ board_info_t *db = netdev_priv(dev);
+ unsigned long flags;
+ unsigned nsr, wcr;
+
+ spin_lock_irqsave(&db->lock, flags);
+
+ nsr = ior(db, DM9000_NSR);
+ wcr = ior(db, DM9000_WCR);
+
+ dev_dbg(db->dev, "%s: NSR=0x%02x, WCR=0x%02x\n", __func__, nsr, wcr);
+
+ if (nsr & NSR_WAKEST) {
+ /* clear, so we can avoid */
+ iow(db, DM9000_NSR, NSR_WAKEST);
+
+ if (wcr & WCR_LINKST)
+ dev_info(db->dev, "wake by link status change\n");
+ if (wcr & WCR_SAMPLEST)
+ dev_info(db->dev, "wake by sample packet\n");
+ if (wcr & WCR_MAGICST )
+ dev_info(db->dev, "wake by magic packet\n");
+ if (!(wcr & (WCR_LINKST | WCR_SAMPLEST | WCR_MAGICST)))
+ dev_err(db->dev, "wake signalled with no reason? "
+ "NSR=0x%02x, WSR=0x%02x\n", nsr, wcr);
+
+ }
+
+ spin_unlock_irqrestore(&db->lock, flags);
+
+ return (nsr & NSR_WAKEST) ? IRQ_HANDLED : IRQ_NONE;
+}
+