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interrupt in natsemi

This commit is contained in:
Udayan Kumar 2007-07-03 22:20:47 -04:00
parent 0d4ecfa63c
commit 5e91a38269
1 changed files with 15 additions and 3 deletions
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18
src/drivers/net/natsemi.c
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@ -445,7 +445,7 @@ static void nat_close ( struct net_device *netdev ) {
free_iob( nat->iobuf[i] );
}
/* disable interrupts */
outl(0,nat->ioaddr +IntrEnable);
outl(0,nat->ioaddr + IntrMask) ;
}
/**
@ -498,11 +498,21 @@ static void nat_poll ( struct net_device *netdev, unsigned int rx_quota ) {
struct natsemi_nic *nat = netdev->priv;
unsigned int status;
unsigned int rx_status;
unsigned int intr_status;
unsigned int rx_len;
struct io_buffer *rx_iob;
int i;
outl(1,nat->ioaddr +IntrEnable);
/* read the interrupt register */
intr_status=inl(nat->ioaddr+IntrStatus);
if(!intr_status)
goto end;
/* check the status of packets given to card for transmission */
DBG("Intr status %X\n",intr_status);
i=nat->tx_dirty;
while(i!=nat->tx_cur)
{
@ -551,7 +561,7 @@ static void nat_poll ( struct net_device *netdev, unsigned int rx_quota ) {
rx_iob = alloc_iob(rx_len);
if(!rx_iob)
/* leave packet for next call to poll*/
return;
goto end;
memcpy(iob_put(rx_iob,rx_len),
bus_to_virt(nat->rx[nat->rx_cur].bufptr),rx_len);
@ -565,9 +575,11 @@ static void nat_poll ( struct net_device *netdev, unsigned int rx_quota ) {
rx_status=(unsigned int)nat->rx[nat->rx_cur].cmdsts;
}
end:
/* re-enable the potentially idle receive state machine */
outl(RxOn, nat->ioaddr + ChipCmd);
outl(RxOn, nat->ioaddr + ChipCmd);
outl(1,nat->ioaddr +IntrEnable);
}