* 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:
#include <linux/in.h>
#include <linux/errno.h>
#include <linux/delay.h>
-#include <linux/lp.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/if_plip.h>
#include <linux/workqueue.h>
-#include <linux/ioport.h>
#include <linux/spinlock.h>
#include <linux/parport.h>
#include <linux/bitops.h>
#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)
static void plip_timer_bh(struct net_device *dev);
/* 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);
static int plip_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
static int plip_preempt(void *handle);
static void plip_wakeup(void *handle);
-\f
+
enum plip_connection_state {
PLIP_CN_NONE=0,
PLIP_CN_RECEIVE,
atomic_t kill_timer;
struct semaphore killed_timer_sem;
};
-\f
-inline static void enable_parport_interrupts (struct net_device *dev)
+
+static inline void enable_parport_interrupts (struct net_device *dev)
{
if (dev->irq != -1)
{
}
}
-inline static void disable_parport_interrupts (struct net_device *dev)
+static inline void disable_parport_interrupts (struct net_device *dev)
{
if (dev->irq != -1)
{
}
}
-inline static void write_data (struct net_device *dev, unsigned char data)
+static inline void write_data (struct net_device *dev, unsigned char data)
{
struct parport *port =
((struct net_local *)dev->priv)->pardev->port;
port->ops->write_data (port, data);
}
-inline static unsigned char read_status (struct net_device *dev)
+static inline unsigned char read_status (struct net_device *dev)
{
struct parport *port =
((struct net_local *)dev->priv)->pardev->port;
return port->ops->read_status (port);
}
-\f
+
/* Entry point of PLIP driver.
Probe the hardware, and register/initialize the driver.
spin_lock_init(&nl->lock);
}
-\f
+
/* Bottom half handler for the delayed request.
This routine is kicked by do_timer().
Request `plip_bh' to be invoked. */
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,
plip_timer_bh(struct net_device *dev)
{
struct net_local *nl = netdev_priv(dev);
-
+
if (!(atomic_read (&nl->kill_timer))) {
- plip_interrupt (-1, dev, NULL);
+ plip_interrupt (-1, dev);
schedule_delayed_work(&nl->timer, 1);
}
return TIMEOUT;
}
-\f
+
static int
plip_none(struct net_device *dev, struct net_local *nl,
struct plip_local *snd, struct plip_local *rcv)
/* PLIP_RECEIVE --- receive a byte(two nibbles)
Returns OK on success, TIMEOUT on timeout */
-inline static int
+static inline int
plip_receive(unsigned short nibble_timeout, struct net_device *dev,
enum plip_nibble_state *ns_p, unsigned char *data_p)
{
}
/*
- * 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 unsigned short plip_type_trans(struct sk_buff *skb, struct net_device *dev)
+
+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
*/
return htons(ETH_P_802_2);
}
-
/* PLIP_RECEIVE_PACKET --- receive a packet */
static int
plip_receive_packet(struct net_device *dev, struct net_local *nl,
/* PLIP_SEND --- send a byte (two nibbles)
Returns OK on success, TIMEOUT when timeout */
-inline static int
+static inline int
plip_send(unsigned short nibble_timeout, struct net_device *dev,
enum plip_nibble_state *ns_p, unsigned char data)
{
return OK;
}
-\f
+
/* 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;
spin_unlock_irq(&nl->lock);
}
-\f
+
static int
plip_tx_packet(struct sk_buff *skb, struct net_device *dev)
{
}
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;
}
return 0;
}
-\f
+
static int parport[PLIP_MAX] = { [0 ... PLIP_MAX-1] = -1 };
static int timid;
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->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://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff