patch-2.1.25 linux/drivers/net/hydra.c

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diff -u --recursive --new-file v2.1.24/linux/drivers/net/hydra.c linux/drivers/net/hydra.c
@@ -47,11 +47,11 @@
 #undef HYDRA_DEBUG        /* define this for (lots of) debugging information */
 
 #if 0                         /* currently hardwired to one transmit buffer */
- #define TX_RING_SIZE	5
- #define RX_RING_SIZE	16
+	#define TX_RING_SIZE	5
+	#define RX_RING_SIZE	16
 #else
- #define TX_RING_SIZE 1
- #define RX_RING_SIZE 8
+	#define TX_RING_SIZE 1
+	#define RX_RING_SIZE 8
 #endif
 
 #define ETHER_MIN_LEN 64
@@ -65,8 +65,8 @@
  * the CIA accesses here are uses to make sure the minimum time
  * requirement between NIC chip selects is met.
  */
-#define WRITE_REG(reg, val) (ciaa.pra, ((u_char)(*(nicbase+(reg))=val)))
-#define READ_REG(reg) (ciaa.pra, ((u_char)(*(nicbase+(reg)))))
+#define WRITE_REG(reg, val) (ciaa.pra, ((u8)(*(nicbase+(reg))=val)))
+#define READ_REG(reg) (ciaa.pra, ((u8)(*(nicbase+(reg)))))
 
 /* mask value for the interrupts we use */
 #define NIC_INTS (ISR_PRX | ISR_PTX | ISR_RXE | ISR_TXE | ISR_OVW | ISR_CNT)
@@ -78,23 +78,23 @@
  *   Private Device Data
  */
 struct hydra_private
-    {
-    u_char *hydra_base;
-    u_char *hydra_nic_base;
-    u_short tx_page_start;
-    u_short rx_page_start;
-    u_short rx_page_stop;
-    u_short next_pkt;
-    struct enet_statistics stats;
-    int key;
-    };
+{
+	u8 *hydra_base;
+	u8 *hydra_nic_base;
+	u16 tx_page_start;
+	u16 rx_page_start;
+	u16 rx_page_stop;
+	u16 next_pkt;
+	struct net_device_stats stats;
+	int key;
+};
 
 static int hydra_open(struct device *dev);
 static int hydra_start_xmit(struct sk_buff *skb, struct device *dev);
 static void hydra_interrupt(int irq, void *data, struct pt_regs *fp);
-static void __inline__ hydra_rx(struct device *dev, struct hydra_private *priv, volatile u_char *nicbase);
+static void __inline__ hydra_rx(struct device *dev, struct hydra_private *priv, volatile u8 *nicbase);
 static int hydra_close(struct device *dev);
-static struct enet_statistics *hydra_get_stats(struct device *dev);
+static struct net_device_stats *hydra_get_stats(struct device *dev);
 #ifdef HAVE_MULTICAST
 static void set_multicast_list(struct device *dev, int num_addrs, void *addrs);
 #endif
@@ -106,8 +106,8 @@
 
 #if defined (__GNUC__) && defined (__mc68000__) && defined (USE_ASM)
 
-static __inline__ void *memcpyw(u_short *dest, u_short *src, int len)
-    {
+static __inline__ void *memcpyw(u16 *dest, u16 *src, int len)
+{
     __asm__("   move.l %0,%/a1; move.l %1,%/a0; move.l %2,%/d0 \n\t"
 	    "   cmpi.l #2,%/d0 \n\t"
 	    "1: bcs.s  2f \n\t"
@@ -133,462 +133,460 @@
 /* this one here relies on the fact that _writes_ to hydra memory   */
 /* are guaranteed to be of even length. (reads can be arbitrary)    */
 
-static void memcpyw(u_short *dest, u_short *src, int len)
+/*
+ *	FIXME: Surely we should be using the OS generic stuff and do
+ *
+ *	memcpy(dest,src,(len+1)&~1);
+ *
+ *	Can a 68K guy with this card check that ? - better yet
+ *	use a copy/checksum on it.
+ */
+ 
+static void memcpyw(u16 *dest, u16 *src, int len)
 {
-  if(len & 1)
-    len++;
+	if(len & 1)
+		len++;
 
-  while (len >= 2) {
-    *(dest++) = *(src++);
-    len -= 2;
-  }
-    
+	while (len >= 2) 
+	{
+		*(dest++) = *(src++);
+		len -= 2;
+	}
 }
 
 #endif
 
 int hydra_probe(struct device *dev)
-    {
-    struct hydra_private *priv;
-    u_long board;
-    int key;
-    struct ConfigDev *cd;
-    int j;
+{
+	struct hydra_private *priv;
+	u32 board;
+	int key;
+	struct ConfigDev *cd;
+	int j;
 
 #ifdef HYDRA_DEBUG
  printk("hydra_probe(%x)\n", dev);
 #endif
 
-    if ((key = zorro_find(MANUF_HYDRA_SYSTEMS, PROD_AMIGANET, 0, 0))) {
-	cd = zorro_get_board(key);
-	if((board = (u_long) cd->cd_BoardAddr))
-	    {
-	    for(j = 0; j < ETHER_ADDR_LEN; j++)
-                dev->dev_addr[j] = *((u_char *)ZTWO_VADDR(board + HYDRA_ADDRPROM + 2*j));
+	if ((key = zorro_find(MANUF_HYDRA_SYSTEMS, PROD_AMIGANET, 0, 0))) 
+	{
+		cd = zorro_get_board(key);
+		if((board = (u32) cd->cd_BoardAddr))
+		{
+			for(j = 0; j < ETHER_ADDR_LEN; j++)
+				dev->dev_addr[j] = *((u8 *)ZTWO_VADDR(board + HYDRA_ADDRPROM + 2*j));
 	    
-	    printk("%s: hydra at 0x%08x, address %02x:%02x:%02x:%02x:%02x:%02x (hydra.c " HYDRA_VERSION ")\n",
-		   dev->name, (int)board, dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
-		   dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
-
-	    init_etherdev(dev, 0);
+			printk("%s: hydra at 0x%08x, address %02x:%02x:%02x:%02x:%02x:%02x (hydra.c " HYDRA_VERSION ")\n",
+				dev->name, (int)board, dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
+				dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
+			init_etherdev(dev, 0);
 	    
-	    dev->priv = kmalloc(sizeof(struct hydra_private), GFP_KERNEL);
-	    priv = (struct hydra_private *)dev->priv;
-	    memset(priv, 0, sizeof(struct hydra_private));
+			dev->priv = kmalloc(sizeof(struct hydra_private), GFP_KERNEL);
+			priv = (struct hydra_private *)dev->priv;
+			memset(priv, 0, sizeof(struct hydra_private));
 	    
-	    priv->hydra_base = (u_char *) ZTWO_VADDR(board);
-	    priv->hydra_nic_base = (u_char *) ZTWO_VADDR(board) + HYDRA_NIC_BASE;
-	    priv->key = key;
+			priv->hydra_base = (u8 *) ZTWO_VADDR(board);
+			priv->hydra_nic_base = (u8 *) ZTWO_VADDR(board) + HYDRA_NIC_BASE;
+			priv->key = key;
 	    
-	    dev->open = &hydra_open;
-	    dev->stop = &hydra_close;
-	    dev->hard_start_xmit = &hydra_start_xmit;
-	    dev->get_stats = &hydra_get_stats;
-#ifdef HAVE_MULTICAST
-	    dev->set_multicast_list = &hydra_set_multicast_list;
-#endif
-	    zorro_config_board(key, 0);
-	    return(0);
-            }
-        }
-    return(ENODEV);
-    }
+			dev->open = &hydra_open;
+			dev->stop = &hydra_close;
+			dev->hard_start_xmit = &hydra_start_xmit;
+			dev->get_stats = &hydra_get_stats;
+	 		dev->set_multicast_list = &hydra_set_multicast_list;
+	 		
+	 		/*
+	 		 *	Cannot yet do multicast
+	 		 */
+	 		dev->flags&=~IFF_MULTICAST;
+			zorro_config_board(key, 0);
+			return(0);
+		}
+	}
+	return(ENODEV);
+}
 
 
 static int hydra_open(struct device *dev)
-  {
-    struct hydra_private *priv = (struct hydra_private *)dev->priv;
-    volatile u_char *nicbase = priv->hydra_nic_base;
-#ifdef HAVE_MULTICAST
-    int i;
-#endif
+{
+	struct hydra_private *priv = (struct hydra_private *)dev->priv;
+	volatile u8 *nicbase = priv->hydra_nic_base;
+	int i;
     
 #ifdef HYDRA_DEBUG
- printk("hydra_open(0x%x)\n", dev);
+	printk("hydra_open(0x%x)\n", dev);
 #endif
 
-    /* first, initialize the private structure */
-    priv->tx_page_start = 0;   /* these are 256 byte buffers for NS8390 */
-    priv->rx_page_start = 6;
-    priv->rx_page_stop  = 62;  /* these values are hard coded for now */
+	/* first, initialize the private structure */
+	priv->tx_page_start = 0;   /* these are 256 byte buffers for NS8390 */
+	priv->rx_page_start = 6;
+	priv->rx_page_stop  = 62;  /* these values are hard coded for now */
 
-    /* Reset the NS8390 NIC */
-    WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_STOP);
+	 /* Reset the NS8390 NIC */
+	WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_STOP);
 
-    /* be sure that the NIC is in stopped state */
-    while(!(READ_REG(NIC_ISR) & ISR_RST));
+	/* be sure that the NIC is in stopped state */
+	while(!(READ_REG(NIC_ISR) & ISR_RST));
 
-    /* word transfer, big endian bytes, loopback, FIFO threshold 4 bytes */
-    WRITE_REG(NIC_DCR, DCR_WTS | DCR_BOS | DCR_LS | DCR_FT0);
+	/* word transfer, big endian bytes, loopback, FIFO threshold 4 bytes */
+	WRITE_REG(NIC_DCR, DCR_WTS | DCR_BOS | DCR_LS | DCR_FT0);
 
-    /* clear remote byte count registers */
-    WRITE_REG(NIC_RBCR0, 0);
-    WRITE_REG(NIC_RBCR1, 0);
+	/* clear remote byte count registers */
+	WRITE_REG(NIC_RBCR0, 0);
+	WRITE_REG(NIC_RBCR1, 0);
 
-    /* accept packets addressed to this card and also broadcast packets */
-    WRITE_REG(NIC_RCR, NIC_RCRBITS);
+	/* accept packets addressed to this card and also broadcast packets */
+	WRITE_REG(NIC_RCR, NIC_RCRBITS);
 
-    /* enable loopback mode 1 */
-    WRITE_REG(NIC_TCR, TCR_LB1);
+	/* enable loopback mode 1 */
+	WRITE_REG(NIC_TCR, TCR_LB1);
 
-    /* initialize receive buffer ring */
-    WRITE_REG(NIC_PSTART, priv->rx_page_start);
-    WRITE_REG(NIC_PSTOP, priv->rx_page_stop);
-    WRITE_REG(NIC_BNDRY, priv->rx_page_start);
+	/* initialize receive buffer ring */
+	WRITE_REG(NIC_PSTART, priv->rx_page_start);
+	WRITE_REG(NIC_PSTOP, priv->rx_page_stop);
+	WRITE_REG(NIC_BNDRY, priv->rx_page_start);
 
-    /* clear interrupts */
-    WRITE_REG(NIC_ISR, 0xff);
+	/* clear interrupts */
+	WRITE_REG(NIC_ISR, 0xff);
 
-    /* enable interrupts */
-    WRITE_REG(NIC_IMR, NIC_INTS);
+	/* enable interrupts */
+	WRITE_REG(NIC_IMR, NIC_INTS);
 
-    /* set the ethernet hardware address */
-    WRITE_REG(NIC_CR, CR_PAGE1 | CR_NODMA | CR_STOP); /* goto page 1 */
+	/* set the ethernet hardware address */
+	WRITE_REG(NIC_CR, CR_PAGE1 | CR_NODMA | CR_STOP); /* goto page 1 */
 
-    WRITE_REG(NIC_PAR0, dev->dev_addr[0]);
-    WRITE_REG(NIC_PAR1, dev->dev_addr[1]);
-    WRITE_REG(NIC_PAR2, dev->dev_addr[2]);
-    WRITE_REG(NIC_PAR3, dev->dev_addr[3]);
-    WRITE_REG(NIC_PAR4, dev->dev_addr[4]);
-    WRITE_REG(NIC_PAR5, dev->dev_addr[5]);
+	WRITE_REG(NIC_PAR0, dev->dev_addr[0]);
+	WRITE_REG(NIC_PAR1, dev->dev_addr[1]);
+	WRITE_REG(NIC_PAR2, dev->dev_addr[2]);
+	WRITE_REG(NIC_PAR3, dev->dev_addr[3]);
+	WRITE_REG(NIC_PAR4, dev->dev_addr[4]);
+	WRITE_REG(NIC_PAR5, dev->dev_addr[5]);
 
-#ifdef HAVE_MULTICAST
-    /* clear multicast hash table */
-    for(i = 0; i < 8; i++)
-      WRITE_REG(NIC_MAR0 + 2*i, 0);
-#endif
+	/* clear multicast hash table */
+	for(i = 0; i < 8; i++)
+		WRITE_REG(NIC_MAR0 + 2*i, 0);
 
-    priv->next_pkt = priv->rx_page_start+1; /* init our s/w variable */
-    WRITE_REG(NIC_CURR, priv->next_pkt);    /* set the next buf for current */
+	priv->next_pkt = priv->rx_page_start+1; /* init our s/w variable */
+	WRITE_REG(NIC_CURR, priv->next_pkt);    /* set the next buf for current */
 
-    /* goto page 0, start NIC */
-    WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_START);
+	/* goto page 0, start NIC */
+	WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_START);
 
-    /* take interface out of loopback */
-    WRITE_REG(NIC_TCR, 0);
+	/* take interface out of loopback */
+	WRITE_REG(NIC_TCR, 0);
 
-    dev->tbusy = 0;
-    dev->interrupt = 0;
-    dev->start = 1;
+	dev->tbusy = 0;
+	dev->interrupt = 0;
+	dev->start = 1;
     
-    if(request_irq(IRQ_AMIGA_PORTS, hydra_interrupt, 0, "Hydra Ethernet", dev))
-      return(-EAGAIN);
+	if(request_irq(IRQ_AMIGA_PORTS, hydra_interrupt, 0, "Hydra Ethernet", dev))
+		return(-EAGAIN);
 
-    MOD_INC_USE_COUNT;
+	MOD_INC_USE_COUNT;
 
-    return(0);
-  }
+	return(0);
+}
 
 
 static int hydra_close(struct device *dev)
 {
-  struct hydra_private *priv = (struct hydra_private *)dev->priv;
-  volatile u_char *nicbase = priv->hydra_nic_base;
-  int n = 5000;
+	struct hydra_private *priv = (struct hydra_private *)dev->priv;
+	volatile u8 *nicbase = priv->hydra_nic_base;
+	int n = 5000;
 
-  dev->start = 0;
-  dev->tbusy = 1;
+	dev->start = 0;
+	dev->tbusy = 1;
 
 #ifdef HYDRA_DEBUG
-  printk("%s: Shutting down ethercard\n", dev->name);
-  printk("%s: %d packets missed\n", dev->name, priv->stats.rx_missed_errors);
+	printk("%s: Shutting down ethercard\n", dev->name);
+	printk("%s: %d packets missed\n", dev->name, priv->stats.rx_missed_errors);
 #endif
 
-  WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_STOP);
+	WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_STOP);
 
-  /* wait for NIC to stop (what a nice timeout..) */
-  while(((READ_REG(NIC_ISR) & ISR_RST) == 0) && --n);
+	/* wait for NIC to stop (what a nice timeout..) */
+	while(((READ_REG(NIC_ISR) & ISR_RST) == 0) && --n);
     
-  free_irq(IRQ_AMIGA_PORTS, dev);
+	free_irq(IRQ_AMIGA_PORTS, dev);
 
-  MOD_DEC_USE_COUNT;
+	MOD_DEC_USE_COUNT;
 
-  return(0);
+	return(0);
 }
 
 
 static void hydra_interrupt(int irq, void *data, struct pt_regs *fp)
-    {
-    volatile u_char *nicbase;
+{
+	volatile u8 *nicbase;
   
-    struct device *dev = (struct device *) data;
-    struct hydra_private *priv;
-    u_short intbits;
+	struct device *dev = (struct device *) data;
+	struct hydra_private *priv;
+	u16 intbits;
 
-    if(dev == NULL)
-        {
-        printk("hydra_interrupt(): irq for unknown device\n");
-        return;
-        }
+	if(dev == NULL)
+	{
+		printk("hydra_interrupt(): irq for unknown device\n");
+		return;
+	}
 
-/* this is not likely a problem - i think */
-    if(dev->interrupt)
-        printk("%s: re-entering the interrupt handler\n", dev->name);
+	/* this is not likely a problem - i think */
+	if(dev->interrupt)
+		printk("%s: re-entering the interrupt handler\n", dev->name);
 
-    dev->interrupt = 1;
+	dev->interrupt = 1;
 
-    priv = (struct hydra_private *) dev->priv;
-    nicbase = (u_char *) priv->hydra_nic_base;
+	priv = (struct hydra_private *) dev->priv;
+	nicbase = (u8 *) priv->hydra_nic_base;
 
-    /* select page 0 */
-    WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA);
+	/* select page 0 */
+	WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA);
 
-    intbits = READ_REG(NIC_ISR) & NIC_INTS;
-    if(intbits == 0)
+	intbits = READ_REG(NIC_ISR) & NIC_INTS;
+	if(intbits == 0)
         {
-        dev->interrupt = 0;
-        return;
-        }
+		dev->interrupt = 0;
+		return;
+	}
 
 	/* acknowledge all interrupts, by clearing the interrupt flag */
 	WRITE_REG(NIC_ISR, intbits);
 
 	if((intbits & ISR_PTX) && !(intbits & ISR_TXE))
-	    {
-	    dev->tbusy = 0;
-	    mark_bh(NET_BH);
-	    }
+	{
+		dev->tbusy = 0;
+		mark_bh(NET_BH);
+	}
 	
 	if((intbits & ISR_PRX) && !(intbits & ISR_RXE))/* packet received OK */
-	      hydra_rx(dev, priv, nicbase);
+		hydra_rx(dev, priv, nicbase);
 
         if(intbits & ISR_TXE)
-	    priv->stats.tx_errors++;
+		priv->stats.tx_errors++;
 
         if(intbits & ISR_RXE)
-	    priv->stats.rx_errors++;
+		priv->stats.rx_errors++;
 
-	if(intbits & ISR_CNT) {
-	  /*
-	   * read the tally counters and (currently) ignore the values
-	   * might be useful because of bugs of some versions of the 8390 NIC
-	   */
+	if(intbits & ISR_CNT) 
+	{
+		/*
+		 * read the tally counters and (currently) ignore the values
+		 * might be useful because of bugs of some versions of the 8390 NIC
+		 */
 #ifdef HYDRA_DEBUG
-	  printk("hydra_interrupt(): ISR_CNT\n");
+		printk("hydra_interrupt(): ISR_CNT\n");
 #endif
-	  (void)READ_REG(NIC_CNTR0);
-	  (void)READ_REG(NIC_CNTR1);
-	  (void)READ_REG(NIC_CNTR2);
+		(void)READ_REG(NIC_CNTR0);
+		(void)READ_REG(NIC_CNTR1);
+		(void)READ_REG(NIC_CNTR2);
 	}
 	
 	if(intbits & ISR_OVW)
-	    {
-            #ifdef HYDRA_DEBUG
-	    WRITE_REG(NIC_CR, CR_PAGE1 | CR_START | CR_NODMA);
+	{
+#ifdef HYDRA_DEBUG
+		WRITE_REG(NIC_CR, CR_PAGE1 | CR_START | CR_NODMA);
 /* another one just too much for me to comprehend - basically this could  */
 /* only occur because of invalid access to hydra ram, thus invalidating  */
 /* the interrupt bits read - in average usage these do not occur at all */
-	    printk("hydra_interrupt(): overwrite warning, NIC_ISR %02x, NIC_CURR %02x\n",
-		 intbits, READ_REG(NIC_CURR));
-	    WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA);
-            #endif
+		printk("hydra_interrupt(): overwrite warning, NIC_ISR %02x, NIC_CURR %02x\n",
+			intbits, READ_REG(NIC_CURR));
+		WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA);
+#endif
 	    
 
-	    /* overwrite warning occurred, stop NIC & check the BOUNDARY pointer */
-	    /* FIXME - real overwrite handling needed !! */
+		/* overwrite warning occurred, stop NIC & check the BOUNDARY pointer */
+		/* FIXME - real overwrite handling needed !! */
 
-	    printk("hydra_interrupt(): overwrite warning, resetting NIC\n");
-	    WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_STOP);
-	    while(!(READ_REG(NIC_ISR) & ISR_RST));
-	    /* wait for NIC to reset */
-	    WRITE_REG(NIC_DCR, DCR_WTS | DCR_BOS | DCR_LS | DCR_FT0);
-	    WRITE_REG(NIC_RBCR0, 0);
-	    WRITE_REG(NIC_RBCR1, 0);
-	    WRITE_REG(NIC_RCR, NIC_RCRBITS);
-	    WRITE_REG(NIC_TCR, TCR_LB1);
-	    WRITE_REG(NIC_PSTART, priv->rx_page_start);
-	    WRITE_REG(NIC_PSTOP, priv->rx_page_stop);
-	    WRITE_REG(NIC_BNDRY, priv->rx_page_start);
-	    WRITE_REG(NIC_ISR, 0xff);
-	    WRITE_REG(NIC_IMR, NIC_INTS);
-/* currently this _won't_ reset my hydra, even though it is */
-/* basically the same code as in the board init - any ideas? */
+		printk("hydra_interrupt(): overwrite warning, resetting NIC\n");
+		WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_STOP);
+		while(!(READ_REG(NIC_ISR) & ISR_RST));
+		/* wait for NIC to reset */
+		WRITE_REG(NIC_DCR, DCR_WTS | DCR_BOS | DCR_LS | DCR_FT0);
+		WRITE_REG(NIC_RBCR0, 0);
+		WRITE_REG(NIC_RBCR1, 0);
+		WRITE_REG(NIC_RCR, NIC_RCRBITS);
+		WRITE_REG(NIC_TCR, TCR_LB1);
+		WRITE_REG(NIC_PSTART, priv->rx_page_start);
+		WRITE_REG(NIC_PSTOP, priv->rx_page_stop);
+		WRITE_REG(NIC_BNDRY, priv->rx_page_start);
+		WRITE_REG(NIC_ISR, 0xff);
+		WRITE_REG(NIC_IMR, NIC_INTS);
+		/* currently this _won't_ reset my hydra, even though it is */
+		/* basically the same code as in the board init - any ideas? */
 
-	    priv->next_pkt = priv->rx_page_start+1; /* init our s/w variable */
-	    WRITE_REG(NIC_CURR, priv->next_pkt);    /* set the next buf for current */
+		priv->next_pkt = priv->rx_page_start+1; /* init our s/w variable */
+		WRITE_REG(NIC_CURR, priv->next_pkt);    /* set the next buf for current */
 	    
-	    WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_START);
-	    
-	    WRITE_REG(NIC_TCR, 0);
-	    }
+		WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_START);
 
-    dev->interrupt = 0;
-    return;
+		WRITE_REG(NIC_TCR, 0);
+	}
+
+	dev->interrupt = 0;
+	return;
     }
 
 
 /*
  * packet transmit routine
  */
+
 static int hydra_start_xmit(struct sk_buff *skb, struct device *dev)
-    {
-    struct hydra_private *priv = (struct hydra_private *)dev->priv;
-    volatile u_char *nicbase = priv->hydra_nic_base;
-    int len, len1;
+{
+	struct hydra_private *priv = (struct hydra_private *)dev->priv;
+	volatile u8 *nicbase = priv->hydra_nic_base;
+	int len, len1;
 
 	/* Transmitter timeout, serious problems. */
 
-    if(dev->tbusy)
+	if(dev->tbusy)
 	{
-        int tickssofar = jiffies - dev->trans_start;
-	if(tickssofar < 20)
-	    return(1);
-	WRITE_REG(NIC_CR, CR_STOP);
-	printk("%s: transmit timed out, status %4.4x, resetting.\n", dev->name, 0);
-	priv->stats.tx_errors++;
-
-
-	dev->tbusy = 0;
-	dev->trans_start = jiffies;
-
-	return(0);
-	}
-
-
-    if(skb == NULL)
-        {
-	dev_tint(dev);
-	return(0);
+		int tickssofar = jiffies - dev->trans_start;
+		if(tickssofar < 20)
+			return(1);
+		WRITE_REG(NIC_CR, CR_STOP);
+		printk("%s: transmit timed out, status %4.4x, resetting.\n", dev->name, 0);
+		priv->stats.tx_errors++;
+		dev->tbusy = 0;
+		dev->trans_start = jiffies;
+		return(0);
 	}
 
-    if((len = skb->len) <= 0)
-	return(0);
+	len=skb->len;
 
-    /* fill in a tx ring entry */
+	/* fill in a tx ring entry */
     
 #ifdef HYDRA_DEBUG
- printk("TX pkt type 0x%04x from ", ((u_short *)skb->data)[6]);
+	printk("TX pkt type 0x%04x from ", ((u16 *)skb->data)[6]);
 	{
 		int i;
-		u_char *ptr = &((u_char *)skb->data)[6];
+		u8 *ptr = &((u8 *)skb->data)[6];
 		for (i = 0; i < 6; i++)
 			printk("%02x", ptr[i]);
 	}
 	printk(" to ");
 	{
 		int i;
-		u_char *ptr = (u_char *)skb->data;
+		u8 *ptr = (u8 *)skb->data;
 		for (i = 0; i < 6; i++)
 			printk("%02x", ptr[i]);
 	}
 	printk(" data 0x%08x len %d\n", (int)skb->data, len);
 #endif
 
-    /*
-     * make sure that the packet size is at least the minimum
-     * allowed ethernet packet length.
-     * (possibly should also clear the unused space...)
-     * note: minimum packet length is 64, including CRC
-     */
-    len1 = len;
-    if(len < (ETHER_MIN_LEN-4))
-	len = (ETHER_MIN_LEN-1);
-
-    /* make sure we've got an even number of bytes to copy to hydra's mem */
-    if(len & 1) len++;
-
-    if((u_long)(priv->hydra_base + (priv->tx_page_start << 8)) < 0x80000000)
-      printk("weirdness: memcpyw(txbuf, skbdata, len): txbuf = 0x%x\n", (u_int)(priv->hydra_base+(priv->tx_page_start<<8)));
-
-    /* copy the packet data to the transmit buffer
-       in the ethernet card RAM */
-    memcpyw((u_short *)(priv->hydra_base + (priv->tx_page_start << 8)),
-	    (u_short *)skb->data, len);
-    /* clear the unused space */
-/*    for(; len1<len; len1++)
-      (u_short)*(priv->hydra_base + (priv->tx_page_start<<8) + len1) = 0;
-*/
-    dev_kfree_skb(skb, FREE_WRITE);
-
-    priv->stats.tx_packets++;
-
-    cli();
-    /* make sure we are on the correct page */
-    WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_START);
-
-    /* here we configure the transmit page start register etc */
-    /* notice that this code is hardwired to one transmit buffer */
-    WRITE_REG(NIC_TPSR, priv->tx_page_start);
-    WRITE_REG(NIC_TBCR0, len & 0xff);
-    WRITE_REG(NIC_TBCR1, len >> 8);
+	/*
+	 * make sure that the packet size is at least the minimum
+	 * allowed ethernet packet length.
+	 * (FIXME: Should also clear the unused space...)
+	 * note: minimum packet length is 64, including CRC
+	 */
+	len1 = len;
+
+	if(len < (ETHER_MIN_LEN-4))
+		len = (ETHER_MIN_LEN-1);
+
+	/* make sure we've got an even number of bytes to copy to hydra's mem */
+	if(len & 1) len++;
+
+	if((u32)(priv->hydra_base + (priv->tx_page_start << 8)) < 0x80000000)
+		printk("weirdness: memcpyw(txbuf, skbdata, len): txbuf = 0x%x\n", (u_int)(priv->hydra_base+(priv->tx_page_start<<8)));
+
+	/* copy the packet data to the transmit buffer 
+	   in the ethernet card RAM */
+	memcpyw((u16 *)(priv->hydra_base + (priv->tx_page_start << 8)),
+		(u16 *)skb->data, len);
+	/* clear the unused space */
+	for(; len1<len; len1++)
+		(u16)*(priv->hydra_base + (priv->tx_page_start<<8) + len1) = 0;
+	dev_kfree_skb(skb, FREE_WRITE);
+
+	priv->stats.tx_packets++;
+
+	cli();
+	/* make sure we are on the correct page */
+	WRITE_REG(NIC_CR, CR_PAGE0 | CR_NODMA | CR_START);
+
+	/* here we configure the transmit page start register etc */
+	/* notice that this code is hardwired to one transmit buffer */
+	WRITE_REG(NIC_TPSR, priv->tx_page_start);
+	WRITE_REG(NIC_TBCR0, len & 0xff);
+	WRITE_REG(NIC_TBCR1, len >> 8);
+
+	/* commit the packet to the wire */
+	WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA | CR_TXP);
+	sti();
 
-    /* commit the packet to the wire */
-    WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA | CR_TXP);
-    sti();
+	 dev->trans_start = jiffies;
 
-    dev->trans_start = jiffies;
-
-    return(0);
-    }
+	return(0);
+}
 
 
-static void __inline__ hydra_rx(struct device *dev, struct hydra_private *priv, volatile u_char *nicbase)
-    {
-    volatile u_short *board_ram_ptr;
-    struct sk_buff *skb;
-    int hdr_next_pkt, pkt_len, len1, boundary;
+static void __inline__ hydra_rx(struct device *dev, struct hydra_private *priv, volatile u8 *nicbase)
+{
+	volatile u16 *board_ram_ptr;
+	struct sk_buff *skb;
+	int hdr_next_pkt, pkt_len, len1, boundary;
 
 
-    /* remove packet(s) from the ring and commit them to TCP layer */
-    WRITE_REG(NIC_CR, CR_PAGE1 | CR_NODMA | CR_START); /* page 1 */
-    while(priv->next_pkt != READ_REG(NIC_CURR)) /* should read this only once? */
-      {
-	board_ram_ptr = (u_short *)(priv->hydra_base + (priv->next_pkt << 8));
+	/* remove packet(s) from the ring and commit them to TCP layer */
+	WRITE_REG(NIC_CR, CR_PAGE1 | CR_NODMA | CR_START); /* page 1 */
+	while(priv->next_pkt != READ_REG(NIC_CURR)) /* should read this only once? */
+	{
+		board_ram_ptr = (u16 *)(priv->hydra_base + (priv->next_pkt << 8));
 	
 #ifdef HYDRA_DEBUG
-	printk("next_pkt = 0x%x, board_ram_ptr = 0x%x\n", priv->next_pkt, board_ram_ptr);
+		printk("next_pkt = 0x%x, board_ram_ptr = 0x%x\n", priv->next_pkt, board_ram_ptr);
 #endif
 	
-	/* the following must be done with two steps, or
-	   GCC optimizes it to a byte access to Hydra memory,
-	   which doesn't work... */
-	hdr_next_pkt = board_ram_ptr[0];
-	hdr_next_pkt >>= 8;
+		/* the following must be done with two steps, or
+		   GCC optimizes it to a byte access to Hydra memory,
+		   which doesn't work... */
+		hdr_next_pkt = board_ram_ptr[0];
+		hdr_next_pkt >>= 8;
 	
-	pkt_len = board_ram_ptr[1];
-	pkt_len = ((pkt_len >> 8) | ((pkt_len & 0xff) << 8));
+		pkt_len = board_ram_ptr[1];
+		pkt_len = ((pkt_len >> 8) | ((pkt_len & 0xff) << 8));
 	
 #ifdef HYDRA_DEBUG
-	printk("hydra_interrupt(): hdr_next_pkt = 0x%02x, len = %d\n", hdr_next_pkt, pkt_len);
+		printk("hydra_interrupt(): hdr_next_pkt = 0x%02x, len = %d\n", hdr_next_pkt, pkt_len);
 #endif
 	
-	if(pkt_len >= ETHER_MIN_LEN && pkt_len <= ETHER_MAX_LEN)
-	  {
-	    /* note that board_ram_ptr is u_short */
-	    /* CRC is not included in the packet length */
-	    
-	    pkt_len -= 4;
-	    skb = dev_alloc_skb(pkt_len+2);
-	    if(skb == NULL)
-	      {
-		printk("%s: memory squeeze, dropping packet.\n", dev->name);
-		priv->stats.rx_dropped++;
-	      }
-	    else
-	      {
-		skb->dev = dev;
-		skb_reserve(skb, 2);
+		if(pkt_len >= ETHER_MIN_LEN && pkt_len <= ETHER_MAX_LEN)
+		{
+			/* note that board_ram_ptr is u16 */
+			/* CRC is not included in the packet length */
 		
-		if(hdr_next_pkt < priv->next_pkt && hdr_next_pkt != priv->rx_page_start)
-		  {
-		    /* here, the packet is wrapped */
-		    len1 = ((priv->rx_page_stop - priv->next_pkt)<<8)-4;
-		    
-		    memcpyw((u_short *)skb_put(skb, len1), (u_short *)(board_ram_ptr+2), len1);
-		    memcpyw((u_short *)skb_put(skb, pkt_len-len1),  (u_short *)(priv->hydra_base+(priv->rx_page_start<<8)), pkt_len-len1);
-		    
+			pkt_len -= 4;
+			skb = dev_alloc_skb(pkt_len+2);
+			if(skb == NULL)
+		  	{
+				printk(KERN_INFO "%s: memory squeeze, dropping packet.\n", dev->name);
+				priv->stats.rx_dropped++;
+			}
+			else
+			{
+				skb->dev = dev;
+				skb_reserve(skb, 2);
+				if(hdr_next_pkt < priv->next_pkt && hdr_next_pkt != priv->rx_page_start)
+				{
+					/* here, the packet is wrapped */
+					len1 = ((priv->rx_page_stop - priv->next_pkt)<<8)-4;
+			
+					memcpyw((u16 *)skb_put(skb, len1), (u16 *)(board_ram_ptr+2), len1);
+					memcpyw((u16 *)skb_put(skb, pkt_len-len1),  (u16 *)(priv->hydra_base+(priv->rx_page_start<<8)), pkt_len-len1);
+			
 #ifdef HYDRA_DEBUG
-		    printk("wrapped packet: %d/%d bytes\n", len1, pkt_len-len1);
+					printk("wrapped packet: %d/%d bytes\n", len1, pkt_len-len1);
 #endif
-		  }  /* ... here, packet is not wrapped */
-		else memcpyw((u_short *) skb_put(skb, pkt_len), (u_short *)(board_ram_ptr+2), pkt_len);
-	      }
-	    /* if(skb == NULL) ... */
-	  }
-	else
-	  {
-	    WRITE_REG(NIC_CR, CR_PAGE1 | CR_START | CR_NODMA);
-	    printk("hydra_interrupt(): invalid packet len: %d, NIC_CURR = %02x\n", pkt_len, READ_REG(NIC_CURR));
+				}  /* ... here, packet is not wrapped */
+				else
+					memcpyw((u16 *) skb_put(skb, pkt_len), (u16 *)(board_ram_ptr+2), pkt_len);
+			}
+		}
+		else
+		{
+			WRITE_REG(NIC_CR, CR_PAGE1 | CR_START | CR_NODMA);
+			printk("hydra_interrupt(): invalid packet len: %d, NIC_CURR = %02x\n", pkt_len, READ_REG(NIC_CURR));
 /*
 this is the error i kept getting until i switched to 0.9.10. it still doesn't
 mean that the bug would have gone away - so be alarmed. the packet is likely
@@ -596,45 +594,47 @@
    
 note-for-v2.1: not really problem anymore. hasn't been for a long time.
 */
-	    
-	    WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA);
-	    /* should probably reset the NIC here ?? */
-	    
-	    hydra_open(dev);  /* FIXME - i shouldn't really be doing this. */
-	    return;
-	  }
-	
-	/* now, update the next_pkt pointer */
-	if(hdr_next_pkt < priv->rx_page_stop) priv->next_pkt = hdr_next_pkt;
-	else printk("hydra_interrupt(): invalid next_pkt pointer %d\n", hdr_next_pkt);
-	
-	/* update the boundary pointer */
-	boundary = priv->next_pkt - 1;
-	if(boundary < priv->rx_page_start)
-	  boundary = priv->rx_page_stop - 1;
-	
-	/* set NIC to page 0 to update the NIC_BNDRY register */
-	WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA);
-	WRITE_REG(NIC_BNDRY, boundary);
-	
-	/* select page1 to access the NIC_CURR register */
-	WRITE_REG(NIC_CR, CR_PAGE1 | CR_START | CR_NODMA);
-	
-	
-	skb->protocol = eth_type_trans(skb, dev);
-	netif_rx(skb);
-	priv->stats.rx_packets++;
+		
+			WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA);
+			/* should probably reset the NIC here ?? */
+		
+			hydra_open(dev);  /* FIXME - i shouldn't really be doing this. */
+			return;
+		}
+	
+		/* now, update the next_pkt pointer */
+		if(hdr_next_pkt < priv->rx_page_stop)
+			priv->next_pkt = hdr_next_pkt;
+		else
+			printk("hydra_interrupt(): invalid next_pkt pointer %d\n", hdr_next_pkt);
+	
+		/* update the boundary pointer */
+		boundary = priv->next_pkt - 1;
+		if(boundary < priv->rx_page_start)
+			boundary = priv->rx_page_stop - 1;
+	
+		/* set NIC to page 0 to update the NIC_BNDRY register */
+		WRITE_REG(NIC_CR, CR_PAGE0 | CR_START | CR_NODMA);
+		WRITE_REG(NIC_BNDRY, boundary);
+	
+		/* select page1 to access the NIC_CURR register */
+		WRITE_REG(NIC_CR, CR_PAGE1 | CR_START | CR_NODMA);
+	
+	
+		skb->protocol = eth_type_trans(skb, dev);
+		netif_rx(skb);
+		priv->stats.rx_packets++;
 	
-      }
-    return;
-    }
+	}
+	return;
+}
     
 
-static struct enet_statistics *hydra_get_stats(struct device *dev)
+static struct net_device_stats *hydra_get_stats(struct device *dev)
 {
 	struct hydra_private *priv = (struct hydra_private *)dev->priv;
 #if 0
-	u_char *board = priv->hydra_base; 
+	u8 *board = priv->hydra_base; 
 
 	short saved_addr;
 #endif
@@ -643,17 +643,15 @@
 	return(&priv->stats);
 }
 
-#ifdef HAVE_MULTICAST
 static void set_multicast_list(struct device *dev, int num_addrs, void *addrs)
-    {
-    struct hydra_private *priv = (struct hydra_private *)dev->priv;
-    u_char *board = priv->hydra_base;
+{
+	struct hydra_private *priv = (struct hydra_private *)dev->priv;
+	u8 *board = priv->hydra_base;
 
-    /* yes, this code is also waiting for someone to complete.. :) */
-    /* (personally i don't care about multicasts at all :) */
-    return;
-    }
-#endif
+	/* yes, this code is also waiting for someone to complete.. :) */
+	/* (personally i don't care about multicasts at all :) */
+	return;
+}
 
 
 #ifdef MODULE
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