* parport-sharing awareness code by Philip Blundell.
* SMP locking by Niibe Yutaka.
* Support for parallel ports with no IRQ (poll mode),
- * Modifications to use the parallel port API
+ * Modifications to use the parallel port API
* by Nimrod Zimerman.
*
* Fixes:
#ifndef NET_DEBUG
#define NET_DEBUG 1
#endif
-static unsigned int net_debug = NET_DEBUG;
+static const unsigned int net_debug = NET_DEBUG;
#define ENABLE(irq) if (irq != -1) enable_irq(irq)
#define DISABLE(irq) if (irq != -1) disable_irq(irq)
#define PLIP_NIBBLE_WAIT 3000
/* Bottom halves */
-static void plip_kick_bh(struct net_device *dev);
-static void plip_bh(struct net_device *dev);
-static void plip_timer_bh(struct net_device *dev);
+static void plip_kick_bh(struct work_struct *work);
+static void plip_bh(struct work_struct *work);
+static void plip_timer_bh(struct work_struct *work);
/* Interrupt handler */
-static void plip_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static void plip_interrupt(int irq, void *dev_id);
/* Functions for DEV methods */
static int plip_tx_packet(struct sk_buff *skb, struct net_device *dev);
struct net_local {
struct net_device_stats enet_stats;
+ struct net_device *dev;
struct work_struct immediate;
- struct work_struct deferred;
- struct work_struct timer;
+ struct delayed_work deferred;
+ struct delayed_work timer;
struct plip_local snd_data;
struct plip_local rcv_data;
struct pardevice *pardev;
nl->nibble = PLIP_NIBBLE_WAIT;
/* Initialize task queue structures */
- INIT_WORK(&nl->immediate, (void (*)(void *))plip_bh, dev);
- INIT_WORK(&nl->deferred, (void (*)(void *))plip_kick_bh, dev);
+ INIT_WORK(&nl->immediate, plip_bh);
+ INIT_DELAYED_WORK(&nl->deferred, plip_kick_bh);
if (dev->irq == -1)
- INIT_WORK(&nl->timer, (void (*)(void *))plip_timer_bh, dev);
+ INIT_DELAYED_WORK(&nl->timer, plip_timer_bh);
spin_lock_init(&nl->lock);
}
This routine is kicked by do_timer().
Request `plip_bh' to be invoked. */
static void
-plip_kick_bh(struct net_device *dev)
+plip_kick_bh(struct work_struct *work)
{
- struct net_local *nl = netdev_priv(dev);
+ struct net_local *nl =
+ container_of(work, struct net_local, deferred.work);
if (nl->is_deferred)
schedule_work(&nl->immediate);
typedef int (*plip_func)(struct net_device *dev, struct net_local *nl,
struct plip_local *snd, struct plip_local *rcv);
-static plip_func connection_state_table[] =
+static const plip_func connection_state_table[] =
{
plip_none,
plip_receive_packet,
/* Bottom half handler of PLIP. */
static void
-plip_bh(struct net_device *dev)
+plip_bh(struct work_struct *work)
{
- struct net_local *nl = netdev_priv(dev);
+ struct net_local *nl = container_of(work, struct net_local, immediate);
struct plip_local *snd = &nl->snd_data;
struct plip_local *rcv = &nl->rcv_data;
plip_func f;
nl->is_deferred = 0;
f = connection_state_table[nl->connection];
- if ((r = (*f)(dev, nl, snd, rcv)) != OK
- && (r = plip_bh_timeout_error(dev, nl, snd, rcv, r)) != OK) {
+ if ((r = (*f)(nl->dev, nl, snd, rcv)) != OK
+ && (r = plip_bh_timeout_error(nl->dev, nl, snd, rcv, r)) != OK) {
nl->is_deferred = 1;
schedule_delayed_work(&nl->deferred, 1);
}
}
static void
-plip_timer_bh(struct net_device *dev)
+plip_timer_bh(struct work_struct *work)
{
- struct net_local *nl = netdev_priv(dev);
-
+ struct net_local *nl =
+ container_of(work, struct net_local, timer.work);
+
if (!(atomic_read (&nl->kill_timer))) {
- plip_interrupt (-1, dev, NULL);
+ plip_interrupt (-1, nl->dev);
schedule_delayed_work(&nl->timer, 1);
}
}
/*
- * Determine the packet's protocol ID. The rule here is that we
+ * Determine the packet's protocol ID. The rule here is that we
* assume 802.3 if the type field is short enough to be a length.
* This is normal practice and works for any 'now in use' protocol.
*
* We can't fix the daddr thing as that quirk (more bug) is embedded
* in far too many old systems not all even running Linux.
*/
-
+
static __be16 plip_type_trans(struct sk_buff *skb, struct net_device *dev)
{
struct ethhdr *eth;
unsigned char *rawp;
-
+
skb->mac.raw=skb->data;
skb_pull(skb,dev->hard_header_len);
eth = eth_hdr(skb);
-
+
if(*eth->h_dest&1)
{
if(memcmp(eth->h_dest,dev->broadcast, ETH_ALEN)==0)
else
skb->pkt_type=PACKET_MULTICAST;
}
-
+
/*
* This ALLMULTI check should be redundant by 1.4
* so don't forget to remove it.
*/
-
+
if (ntohs(eth->h_proto) >= 1536)
return eth->h_proto;
-
+
rawp = skb->data;
-
+
/*
* This is a magic hack to spot IPX packets. Older Novell breaks
* the protocol design and runs IPX over 802.3 without an 802.2 LLC
*/
if (*(unsigned short *)rawp == 0xFFFF)
return htons(ETH_P_802_3);
-
+
/*
* Real 802.2 LLC
*/
/* Handle the parallel port interrupts. */
static void
-plip_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+plip_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct net_local *nl;
struct plip_local *rcv;
unsigned char c0;
- if (dev == NULL) {
- printk(KERN_DEBUG "plip_interrupt: irq %d for unknown device.\n", irq);
- return;
- }
-
nl = netdev_priv(dev);
rcv = &nl->rcv_data;
}
netif_stop_queue (dev);
-
+
if (skb->len > dev->mtu + dev->hard_header_len) {
printk(KERN_WARNING "%s: packet too big, %d.\n", dev->name, (int)skb->len);
netif_start_queue (dev);
}
schedule_work(&nl->immediate);
spin_unlock_irq(&nl->lock);
-
+
return 0;
}
{
struct net_local *nl = neigh->dev->priv;
int ret;
-
+
if ((ret = nl->orig_hard_header_cache(neigh, hh)) == 0)
{
struct ethhdr *eth;
HH_DATA_OFF(sizeof(*eth)));
plip_rewrite_address (neigh->dev, eth);
}
-
+
return ret;
-}
+}
/* Open/initialize the board. This is called (in the current kernel)
sometime after booting when the 'ifconfig' program is run.
else
return;
}
-
+
if (!(dev->flags & IFF_UP))
/* Don't need the port when the interface is down */
return;
struct net_local *nl;
char name[IFNAMSIZ];
- if ((parport[0] == -1 && (!timid || !port->devices)) ||
+ if ((parport[0] == -1 && (!timid || !port->devices)) ||
plip_searchfor(parport, port->number)) {
if (unit == PLIP_MAX) {
printk(KERN_ERR "plip: too many devices\n");
printk(KERN_ERR "plip: memory squeeze\n");
return;
}
-
+
strcpy(dev->name, name);
SET_MODULE_OWNER(dev);
}
nl = netdev_priv(dev);
+ nl->dev = dev;
nl->pardev = parport_register_device(port, name, plip_preempt,
- plip_wakeup, plip_interrupt,
+ plip_wakeup, plip_interrupt,
0, dev);
if (!nl->pardev) {
/* disable driver on "plip=" or "plip=0" */
parport[0] = -2;
} else {
- printk(KERN_WARNING "warning: 'plip=0x%x' ignored\n",
+ printk(KERN_WARNING "warning: 'plip=0x%x' ignored\n",
ints[1]);
}
}
git://git.onelab.eu / linux-2.6.git / blobdiff