arlan: move driver to staging

Move the arlan driver to drivers/staging. This is another pre-802.11 driver that has seen virtually no non-API-fixup activity in years, and for which no active hardware is likely to still exist. This driver represents unnecessary ongoing maintenance for no clear benefit. This patch brought to you by the "hacking" session at the 2009 Kernel Summit in Tokyo, Japan... Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
author: John W. Linville <linville@tuxdriver.com> 2009-10-20 13:53:08 +0900
committer: John W. Linville <linville@tuxdriver.com> 2009-10-30 16:50:33 -0400
commit: e38879efd336fb78b288dcebdc9ca030fd24f449 (patch)
tree: 61e0caaf24485474e52085658e46909e822a7fc0 /drivers/staging/arlan
parent: 955015bb0b42167d14f776ff5947ae2463a974dc (diff)
download: linux-e38879efd336fb78b288dcebdc9ca030fd24f449.tar.gz
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5 files changed, 3697 insertions, 0 deletions
diff --git a/drivers/staging/arlan/Kconfig b/drivers/staging/arlan/Kconfig
new file mode 100644
index 000000000000..0585ed8b4d3e
--- /dev/null
+++ b/drivers/staging/arlan/Kconfig
@@ -0,0 +1,15 @@
+config ARLAN
+	tristate "Aironet Arlan 655 & IC2200 DS support"
+	depends on ISA && !64BIT
+	select WIRELESS_EXT
+	---help---
+	  Aironet makes Arlan, a class of wireless LAN adapters. These use the
+	  www.Telxon.com chip, which is also used on several similar cards.
+	  This driver is tested on the 655 and IC2200 series cards. Look at
+	  <http://www.ylenurme.ee/~elmer/655/> for the latest information.
+
+	  The driver is built as two modules, arlan and arlan-proc. The latter
+	  is the /proc interface and is not needed most of time.
+
+	  On some computers the card ends up in non-valid state after some
+	  time. Use a ping-reset script to clear it.
diff --git a/drivers/staging/arlan/Makefile b/drivers/staging/arlan/Makefile
new file mode 100644
index 000000000000..9e58e5fae7b9
--- /dev/null
+++ b/drivers/staging/arlan/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_ARLAN) += arlan.o 
+
+arlan-objs := arlan-main.o arlan-proc.o
diff --git a/drivers/staging/arlan/arlan-main.c b/drivers/staging/arlan/arlan-main.c
new file mode 100644
index 000000000000..921a082487a1
--- /dev/null
+++ b/drivers/staging/arlan/arlan-main.c
@@ -0,0 +1,1887 @@
+/*
+ *  Copyright (C) 1997 Cullen Jennings
+ *  Copyright (C) 1998 Elmer Joandiu, elmer@ylenurme.ee
+ *  GNU General Public License applies
+ * This module provides support for the Arlan 655 card made by Aironet
+ */
+
+#include "arlan.h"
+
+#if BITS_PER_LONG != 32
+#  error FIXME: this driver requires a 32-bit platform
+#endif
+
+static const char *arlan_version = "C.Jennigs 97 & Elmer.Joandi@ut.ee  Oct'98, http://www.ylenurme.ee/~elmer/655/";
+
+struct net_device *arlan_device[MAX_ARLANS];
+
+static int SID = SIDUNKNOWN;
+static int radioNodeId = radioNodeIdUNKNOWN;
+static char encryptionKey[12] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'};
+int arlan_debug = debugUNKNOWN;
+static int spreadingCode = spreadingCodeUNKNOWN;
+static int channelNumber = channelNumberUNKNOWN;
+static int channelSet = channelSetUNKNOWN;
+static int systemId = systemIdUNKNOWN;
+static int registrationMode = registrationModeUNKNOWN;
+static int keyStart;
+static int tx_delay_ms;
+static int retries = 5;
+static int tx_queue_len = 1;
+static int arlan_EEPROM_bad;
+
+#ifdef ARLAN_DEBUGGING
+
+static int testMemory = testMemoryUNKNOWN;
+static int irq = irqUNKNOWN;
+static int txScrambled = 1;
+static int mdebug;
+
+module_param(irq, int, 0);
+module_param(mdebug, int, 0);
+module_param(testMemory, int, 0);
+module_param(txScrambled, int, 0);
+MODULE_PARM_DESC(irq, "(unused)");
+MODULE_PARM_DESC(testMemory, "(unused)");
+MODULE_PARM_DESC(mdebug, "Arlan multicast debugging (0-1)");
+#endif
+
+module_param_named(debug, arlan_debug, int, 0);
+module_param(spreadingCode, int, 0);
+module_param(channelNumber, int, 0);
+module_param(channelSet, int, 0);
+module_param(systemId, int, 0);
+module_param(registrationMode, int, 0);
+module_param(radioNodeId, int, 0);
+module_param(SID, int, 0);
+module_param(keyStart, int, 0);
+module_param(tx_delay_ms, int, 0);
+module_param(retries, int, 0);
+module_param(tx_queue_len, int, 0);
+module_param_named(EEPROM_bad, arlan_EEPROM_bad, int, 0);
+MODULE_PARM_DESC(debug, "Arlan debug enable (0-1)");
+MODULE_PARM_DESC(retries, "Arlan maximum packet retransmisions");
+#ifdef ARLAN_ENTRY_EXIT_DEBUGGING
+static int arlan_entry_debug;
+static int arlan_exit_debug;
+static int arlan_entry_and_exit_debug;
+module_param_named(entry_debug, arlan_entry_debug, int, 0);
+module_param_named(exit_debug, arlan_exit_debug, int, 0);
+module_param_named(entry_and_exit_debug, arlan_entry_and_exit_debug, int, 0);
+MODULE_PARM_DESC(entry_debug, "Arlan driver function entry debugging");
+MODULE_PARM_DESC(exit_debug, "Arlan driver function exit debugging");
+MODULE_PARM_DESC(entry_and_exit_debug, "Arlan driver function entry and exit debugging");
+#endif
+
+struct arlan_conf_stru arlan_conf[MAX_ARLANS];
+static int arlans_found;
+
+static  int 	arlan_open(struct net_device *dev);
+static  netdev_tx_t arlan_tx(struct sk_buff *skb, struct net_device *dev);
+static  irqreturn_t arlan_interrupt(int irq, void *dev_id);
+static  int 	arlan_close(struct net_device *dev);
+static  struct net_device_stats *
+		arlan_statistics		(struct net_device *dev);
+static  void 	arlan_set_multicast		(struct net_device *dev);
+static  int 	arlan_hw_tx			(struct net_device* dev, char *buf, int length );
+static  int	arlan_hw_config			(struct net_device * dev);
+static  void 	arlan_tx_done_interrupt		(struct net_device * dev, int status);
+static  void	arlan_rx_interrupt		(struct net_device * dev, u_char rxStatus, u_short, u_short);
+static  void	arlan_process_interrupt		(struct net_device * dev);
+static	void	arlan_tx_timeout		(struct net_device *dev);
+
+static inline long us2ticks(int us)
+{
+	return us * (1000000 / HZ);
+}
+
+
+#ifdef ARLAN_ENTRY_EXIT_DEBUGGING
+#define ARLAN_DEBUG_ENTRY(name) \
+	{\
+	struct timeval timev;\
+	do_gettimeofday(&timev);\
+		if (arlan_entry_debug || arlan_entry_and_exit_debug)\
+			printk("--->>>" name " %ld " "\n",((long int) timev.tv_sec * 1000000 + timev.tv_usec));\
+	}
+#define ARLAN_DEBUG_EXIT(name) \
+	{\
+	struct timeval timev;\
+	do_gettimeofday(&timev);\
+		if (arlan_exit_debug || arlan_entry_and_exit_debug)\
+			printk("<<<---" name " %ld " "\n",((long int) timev.tv_sec * 1000000 + timev.tv_usec) );\
+	}
+#else
+#define ARLAN_DEBUG_ENTRY(name)
+#define ARLAN_DEBUG_EXIT(name)
+#endif
+
+
+#define arlan_interrupt_ack(dev)\
+        clearClearInterrupt(dev);\
+        setClearInterrupt(dev);
+
+static inline int arlan_drop_tx(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+
+	dev->stats.tx_errors++;
+	if (priv->Conf->tx_delay_ms)
+	{
+		priv->tx_done_delayed = jiffies + priv->Conf->tx_delay_ms * HZ / 1000 + 1;
+	}
+	else
+	{
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_TX;
+		TXHEAD(dev).offset = 0;
+		TXTAIL(dev).offset = 0;
+		priv->txLast = 0;
+		priv->bad = 0;
+		if (!priv->under_reset && !priv->under_config)
+			netif_wake_queue (dev);
+	}
+	return 1;
+}
+
+
+int arlan_command(struct net_device *dev, int command_p)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	struct arlan_conf_stru *conf = priv->Conf;
+	int udelayed = 0;
+	int i = 0;
+	unsigned long flags;
+
+	ARLAN_DEBUG_ENTRY("arlan_command");
+
+	if (priv->card_polling_interval)
+		priv->card_polling_interval = 1;
+
+	if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
+		printk(KERN_DEBUG "arlan_command, %lx commandByte %x waiting %lx incoming %x \n",
+		jiffies, READSHMB(arlan->commandByte),
+		       priv->waiting_command_mask, command_p);
+
+	priv->waiting_command_mask |= command_p;
+
+	if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
+		if (time_after(jiffies, priv->lastReset + 5 * HZ))
+			priv->waiting_command_mask &= ~ARLAN_COMMAND_RESET;
+
+	if (priv->waiting_command_mask & ARLAN_COMMAND_INT_ACK)
+	{
+		arlan_interrupt_ack(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_ACK;
+	}
+	if (priv->waiting_command_mask & ARLAN_COMMAND_INT_ENABLE)
+	{
+		setInterruptEnable(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_ENABLE;
+	}
+
+	/* Card access serializing lock */
+	spin_lock_irqsave(&priv->lock, flags);
+
+	/* Check cards status and waiting */
+
+	if (priv->waiting_command_mask & (ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW))
+	{
+		while (priv->waiting_command_mask & (ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW))
+		{
+			if (READSHMB(arlan->resetFlag) ||
+				READSHMB(arlan->commandByte))	/* || 
+								   (readControlRegister(dev) & ARLAN_ACCESS))
+								 */
+				udelay(40);
+			else
+				priv->waiting_command_mask &= ~(ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW);
+
+			udelayed++;
+
+			if (priv->waiting_command_mask & ARLAN_COMMAND_LONG_WAIT_NOW)
+			{
+				if (udelayed * 40 > 1000000)
+				{
+					printk(KERN_ERR "%s long wait too long \n", dev->name);
+					priv->waiting_command_mask |= ARLAN_COMMAND_RESET;
+					break;
+				}
+			}
+			else if (priv->waiting_command_mask & ARLAN_COMMAND_WAIT_NOW)
+			{
+				if (udelayed * 40 > 1000)
+				{
+					printk(KERN_ERR "%s short wait too long \n", dev->name);
+					goto bad_end;
+				}
+			}
+		}
+	}
+	else
+	{
+		i = 0;
+		while ((READSHMB(arlan->resetFlag) ||
+			READSHMB(arlan->commandByte)) &&
+			conf->pre_Command_Wait > (i++) * 10)
+			udelay(10);
+
+
+		if ((READSHMB(arlan->resetFlag) ||
+			READSHMB(arlan->commandByte)) &&
+			!(priv->waiting_command_mask & ARLAN_COMMAND_RESET))
+		{
+			goto card_busy_end;
+		}
+	}
+	if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
+		priv->under_reset = 1;
+	if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
+		priv->under_config = 1;
+
+	/* Issuing command */
+	arlan_lock_card_access(dev);
+	if (priv->waiting_command_mask & ARLAN_COMMAND_POWERUP)
+	{
+	//     if (readControlRegister(dev) & (ARLAN_ACCESS && ARLAN_POWER))
+		setPowerOn(dev);
+		arlan_interrupt_lancpu(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERUP;
+		priv->waiting_command_mask |= ARLAN_COMMAND_RESET;
+		priv->card_polling_interval = HZ / 10;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_ACTIVATE)
+	{
+		WRITESHMB(arlan->commandByte, ARLAN_COM_ACTIVATE);
+		arlan_interrupt_lancpu(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_ACTIVATE;
+		priv->card_polling_interval = HZ / 10;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_RX_ABORT)
+	{
+		if (priv->rx_command_given)
+		{
+			WRITESHMB(arlan->commandByte, ARLAN_COM_RX_ABORT);
+			arlan_interrupt_lancpu(dev);
+			priv->rx_command_given = 0;
+		}
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_RX_ABORT;
+		priv->card_polling_interval = 1;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_TX_ABORT)
+	{
+		if (priv->tx_command_given)
+		{
+			WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ABORT);
+			arlan_interrupt_lancpu(dev);
+			priv->tx_command_given = 0;
+		}
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_TX_ABORT;
+		priv->card_polling_interval = 1;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
+	{
+		priv->under_reset=1;
+		netif_stop_queue (dev);
+
+		arlan_drop_tx(dev);
+		if (priv->tx_command_given || priv->rx_command_given)
+		{
+			printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
+		}
+		netif_stop_queue (dev);
+		if (arlan_debug & ARLAN_DEBUG_RESET)
+			printk(KERN_ERR "%s: Doing chip reset\n", dev->name);
+		priv->lastReset = jiffies;
+		WRITESHM(arlan->commandByte, 0, u_char);
+		/* hold card in reset state */
+		setHardwareReset(dev);
+		/* set reset flag and then release reset */
+		WRITESHM(arlan->resetFlag, 0xff, u_char);
+		clearChannelAttention(dev);
+		clearHardwareReset(dev);
+		priv->card_polling_interval = HZ / 4;
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_RESET;
+		priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;
+//		priv->waiting_command_mask |= ARLAN_COMMAND_INT_RENABLE; 
+//		priv->waiting_command_mask |= ARLAN_COMMAND_RX;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RACK)
+	{
+		clearHardwareReset(dev);
+		clearClearInterrupt(dev);
+		setClearInterrupt(dev);
+		setInterruptEnable(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RACK;
+		priv->waiting_command_mask |= ARLAN_COMMAND_CONF;
+		priv->under_config = 1;
+		priv->under_reset = 0;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RENABLE)
+	{
+		setInterruptEnable(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RENABLE;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
+	{
+		if (priv->tx_command_given || priv->rx_command_given)
+		{
+			printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
+		}
+		arlan_drop_tx(dev);
+		setInterruptEnable(dev);
+		arlan_hw_config(dev);
+		arlan_interrupt_lancpu(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF;
+		priv->card_polling_interval = HZ / 10;
+//		priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;   
+//		priv->waiting_command_mask |= ARLAN_COMMAND_INT_ENABLE; 
+		priv->waiting_command_mask |= ARLAN_COMMAND_CONF_WAIT;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF_WAIT)
+	{
+		if (READSHMB(arlan->configuredStatusFlag) != 0 &&
+			READSHMB(arlan->diagnosticInfo) == 0xff)
+		{
+			priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF_WAIT;
+			priv->waiting_command_mask |= ARLAN_COMMAND_RX;
+			priv->waiting_command_mask |= ARLAN_COMMAND_TBUSY_CLEAR;
+			priv->card_polling_interval = HZ / 10;
+			priv->tx_command_given = 0;
+			priv->under_config = 0;
+		}
+		else
+		{
+			priv->card_polling_interval = 1;
+			if (arlan_debug & ARLAN_DEBUG_TIMING)
+				printk(KERN_ERR "configure delayed \n");
+		}
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_RX)
+	{
+		if (!registrationBad(dev))
+		{
+			setInterruptEnable(dev);
+			memset_io(arlan->commandParameter, 0, 0xf);
+			WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_RX_ENABLE);
+			WRITESHMB(arlan->commandParameter[0], conf->rxParameter);
+			arlan_interrupt_lancpu(dev);
+			priv->rx_command_given = 0; // mnjah, bad
+			priv->waiting_command_mask &= ~ARLAN_COMMAND_RX;
+			priv->card_polling_interval = 1;
+		}
+		else
+			priv->card_polling_interval = 2;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_TBUSY_CLEAR)
+	{
+		if ( !registrationBad(dev) &&
+		     (netif_queue_stopped(dev) || !netif_running(dev)) )
+			{
+				priv->waiting_command_mask &= ~ARLAN_COMMAND_TBUSY_CLEAR;
+				netif_wake_queue (dev);
+			}
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_TX)
+	{
+		if (!test_and_set_bit(0, (void *) &priv->tx_command_given))
+		{
+			if (time_after(jiffies, 
+				       priv->tx_last_sent + us2ticks(conf->rx_tweak1))
+			    || time_before(jiffies,
+					   priv->last_rx_int_ack_time + us2ticks(conf->rx_tweak2)))
+			{
+				setInterruptEnable(dev);
+				memset_io(arlan->commandParameter, 0, 0xf);
+				WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ENABLE | ARLAN_COM_INT);
+				memcpy_toio(arlan->commandParameter, &TXLAST(dev), 14);
+//				for ( i=1 ; i < 15 ; i++) printk("%02x:",READSHMB(arlan->commandParameter[i]));
+				priv->tx_last_sent = jiffies;
+				arlan_interrupt_lancpu(dev);
+				priv->tx_command_given = 1;
+				priv->waiting_command_mask &= ~ARLAN_COMMAND_TX;
+				priv->card_polling_interval = 1;
+			}
+			else
+			{
+				priv->tx_command_given = 0;
+				priv->card_polling_interval = 1;
+			}
+		} 
+		else if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
+			printk(KERN_ERR "tx command when tx chain locked \n");
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOPINT)
+	{
+		{
+			WRITESHMB(arlan->commandByte, ARLAN_COM_NOP | ARLAN_COM_INT);
+		}
+		arlan_interrupt_lancpu(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOPINT;
+		priv->card_polling_interval = HZ / 3;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOP)
+	{
+		WRITESHMB(arlan->commandByte, ARLAN_COM_NOP);
+		arlan_interrupt_lancpu(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOP;
+		priv->card_polling_interval = HZ / 3;
+	}
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_SLOW_POLL)
+	{
+		WRITESHMB(arlan->commandByte, ARLAN_COM_GOTO_SLOW_POLL);
+		arlan_interrupt_lancpu(dev);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_SLOW_POLL;
+		priv->card_polling_interval = HZ / 3;
+	} 
+	else if (priv->waiting_command_mask & ARLAN_COMMAND_POWERDOWN)
+	{
+		setPowerOff(dev);
+		if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
+			printk(KERN_WARNING "%s: Arlan Going Standby\n", dev->name);
+		priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERDOWN;
+		priv->card_polling_interval = 3 * HZ;
+	}
+	arlan_unlock_card_access(dev);
+	for (i = 0; READSHMB(arlan->commandByte) && i < 20; i++)
+		udelay(10);
+	if (READSHMB(arlan->commandByte))
+		if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
+			printk(KERN_ERR "card busy leaving command %lx\n", priv->waiting_command_mask);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+	ARLAN_DEBUG_EXIT("arlan_command");
+	priv->last_command_buff_free_time = jiffies;
+	return 0;
+
+card_busy_end:
+	if (time_after(jiffies, priv->last_command_buff_free_time + HZ))
+		priv->waiting_command_mask |= ARLAN_COMMAND_CLEAN_AND_RESET;
+
+	if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
+		printk(KERN_ERR "%s arlan_command card busy end \n", dev->name);
+	spin_unlock_irqrestore(&priv->lock, flags);
+	ARLAN_DEBUG_EXIT("arlan_command");
+	return 1;
+
+bad_end:
+	printk(KERN_ERR "%s arlan_command bad end \n", dev->name);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+	ARLAN_DEBUG_EXIT("arlan_command");
+
+	return -1;
+}
+
+static inline void arlan_command_process(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+
+	int times = 0;
+	while (priv->waiting_command_mask && times < 8)
+	{
+		if (priv->waiting_command_mask)
+		{
+			if (arlan_command(dev, 0))
+				break;
+			times++;
+		}
+		/* if long command, we won't repeat trying */ ;
+		if (priv->card_polling_interval > 1)
+			break;
+		times++;
+	}
+}
+
+
+static inline void arlan_retransmit_now(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+
+
+	ARLAN_DEBUG_ENTRY("arlan_retransmit_now");
+	if (TXLAST(dev).offset == 0)
+	{
+		if (TXHEAD(dev).offset)
+		{
+			priv->txLast = 0;
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to head \n");
+
+		}
+		else if (TXTAIL(dev).offset)
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to tail \n");
+			priv->txLast = 1;
+		}
+		else
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "ReTransmit buff empty");
+		netif_wake_queue (dev);
+		return;
+
+	}
+	arlan_command(dev, ARLAN_COMMAND_TX);
+
+	priv->Conf->driverRetransmissions++;
+	priv->retransmissions++;
+
+	IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("Retransmit %d bytes \n", TXLAST(dev).length);
+
+	ARLAN_DEBUG_EXIT("arlan_retransmit_now");
+}
+
+
+
+static void arlan_registration_timer(unsigned long data)
+{
+	struct net_device *dev = (struct net_device *) data;
+	struct arlan_private *priv = netdev_priv(dev);
+	int bh_mark_needed = 0;
+	int next_tick = 1;
+	long lostTime = ((long)jiffies - (long)priv->registrationLastSeen)
+			* (1000/HZ);
+
+	if (registrationBad(dev))
+	{
+		priv->registrationLostCount++;
+		if (lostTime > 7000 && lostTime < 7200)
+		{
+			printk(KERN_NOTICE "%s registration Lost \n", dev->name);
+		}
+		if (lostTime / priv->reRegisterExp > 2000)
+			arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
+		if (lostTime / (priv->reRegisterExp) > 3500)
+			arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
+		if (priv->reRegisterExp < 400)
+			priv->reRegisterExp += 2;
+		if (lostTime > 7200)
+		{
+			next_tick = HZ;
+			arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
+		}
+	}
+	else
+	{
+		if (priv->Conf->registrationMode && lostTime > 10000 &&
+			priv->registrationLostCount)
+		{
+			printk(KERN_NOTICE "%s registration is back after %ld milliseconds\n",
+			       dev->name, lostTime);
+		}
+		priv->registrationLastSeen = jiffies;
+		priv->registrationLostCount = 0;
+		priv->reRegisterExp = 1;
+		if (!netif_running(dev) )
+			netif_wake_queue(dev);
+		if (time_after(priv->tx_last_sent,priv->tx_last_cleared) &&
+		    time_after(jiffies, priv->tx_last_sent * 5*HZ) ){
+			arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);		
+			priv->tx_last_cleared = jiffies;
+		}
+	}
+
+
+	if (!registrationBad(dev) && priv->ReTransmitRequested)
+	{
+		IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+			printk(KERN_ERR "Retransmit from timer \n");
+		priv->ReTransmitRequested = 0;
+		arlan_retransmit_now(dev);
+	}
+	if (!registrationBad(dev) &&
+		time_after(jiffies, priv->tx_done_delayed) &&
+		priv->tx_done_delayed != 0)
+	{
+		TXLAST(dev).offset = 0;
+		if (priv->txLast)
+			priv->txLast = 0;
+		else if (TXTAIL(dev).offset)
+			priv->txLast = 1;
+		if (TXLAST(dev).offset)
+		{
+			arlan_retransmit_now(dev);
+			dev->trans_start = jiffies;
+		}
+		if (!(TXHEAD(dev).offset && TXTAIL(dev).offset))
+		{
+			netif_wake_queue (dev);
+		}
+		priv->tx_done_delayed = 0;
+		bh_mark_needed = 1;
+	}
+	if (bh_mark_needed)
+	{
+		netif_wake_queue (dev);
+	}
+	arlan_process_interrupt(dev);
+
+	if (next_tick < priv->card_polling_interval)
+		next_tick = priv->card_polling_interval;
+
+	priv->timer.expires = jiffies + next_tick;
+
+	add_timer(&priv->timer);
+}
+
+
+#ifdef ARLAN_DEBUGGING
+
+static void arlan_print_registers(struct net_device *dev, int line)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem *arlan = priv->card;
+
+	u_char hostcpuLock, lancpuLock, controlRegister, cntrlRegImage,
+		txStatus, rxStatus, interruptInProgress, commandByte;
+
+
+	ARLAN_DEBUG_ENTRY("arlan_print_registers");
+	READSHM(interruptInProgress, arlan->interruptInProgress, u_char);
+	READSHM(hostcpuLock, arlan->hostcpuLock, u_char);
+	READSHM(lancpuLock, arlan->lancpuLock, u_char);
+	READSHM(controlRegister, arlan->controlRegister, u_char);
+	READSHM(cntrlRegImage, arlan->cntrlRegImage, u_char);
+	READSHM(txStatus, arlan->txStatus, u_char);
+	READSHM(rxStatus, arlan->rxStatus, u_char);
+	READSHM(commandByte, arlan->commandByte, u_char);
+
+	printk(KERN_WARNING "line %04d IP %02x HL %02x LL %02x CB %02x CR %02x CRI %02x TX %02x RX %02x\n",
+		line, interruptInProgress, hostcpuLock, lancpuLock, commandByte,
+		controlRegister, cntrlRegImage, txStatus, rxStatus);
+
+	ARLAN_DEBUG_EXIT("arlan_print_registers");
+}
+#endif
+
+
+static int arlan_hw_tx(struct net_device *dev, char *buf, int length)
+{
+	int i;
+
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	struct arlan_conf_stru *conf = priv->Conf;
+
+	int tailStarts = 0x800;
+	int headEnds = 0x0;
+
+
+	ARLAN_DEBUG_ENTRY("arlan_hw_tx");
+	if (TXHEAD(dev).offset)
+		headEnds = (((TXHEAD(dev).offset + TXHEAD(dev).length - offsetof(struct arlan_shmem, txBuffer)) / 64) + 1) * 64;
+	if (TXTAIL(dev).offset)
+		tailStarts = 0x800 - (((TXTAIL(dev).offset - offsetof(struct arlan_shmem, txBuffer)) / 64) + 2) * 64;
+
+
+	if (!TXHEAD(dev).offset && length < tailStarts)
+	{
+		IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+			printk(KERN_ERR "TXHEAD insert, tailStart %d\n", tailStarts);
+
+		TXHEAD(dev).offset =
+			offsetof(struct arlan_shmem, txBuffer);
+		TXHEAD(dev).length = length - ARLAN_FAKE_HDR_LEN;
+		for (i = 0; i < 6; i++)
+			TXHEAD(dev).dest[i] = buf[i];
+		TXHEAD(dev).clear = conf->txClear;
+		TXHEAD(dev).retries = conf->txRetries;	/* 0 is use default */
+		TXHEAD(dev).routing = conf->txRouting;
+		TXHEAD(dev).scrambled = conf->txScrambled;
+		memcpy_toio((char __iomem *)arlan + TXHEAD(dev).offset, buf + ARLAN_FAKE_HDR_LEN, TXHEAD(dev).length);
+	}
+	else if (!TXTAIL(dev).offset && length < (0x800 - headEnds))
+	{
+		IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+			printk(KERN_ERR "TXTAIL insert, headEnd %d\n", headEnds);
+
+		TXTAIL(dev).offset =
+			offsetof(struct arlan_shmem, txBuffer) + 0x800 - (length / 64 + 2) * 64;
+		TXTAIL(dev).length = length - ARLAN_FAKE_HDR_LEN;
+		for (i = 0; i < 6; i++)
+			TXTAIL(dev).dest[i] = buf[i];
+		TXTAIL(dev).clear = conf->txClear;
+		TXTAIL(dev).retries = conf->txRetries;
+		TXTAIL(dev).routing = conf->txRouting;
+		TXTAIL(dev).scrambled = conf->txScrambled;
+		memcpy_toio(((char __iomem *)arlan + TXTAIL(dev).offset), buf + ARLAN_FAKE_HDR_LEN, TXTAIL(dev).length);
+	}
+	else
+	{
+		netif_stop_queue (dev);
+		IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+			printk(KERN_ERR "TX TAIL & HEAD full, return, tailStart %d headEnd %d\n", tailStarts, headEnds);
+		return -1;
+	}
+	priv->out_bytes += length;
+	priv->out_bytes10 += length;
+	if (conf->measure_rate < 1)
+		conf->measure_rate = 1;
+	if (time_after(jiffies, priv->out_time + conf->measure_rate * HZ))
+	{
+		conf->out_speed = priv->out_bytes / conf->measure_rate;
+		priv->out_bytes = 0;
+		priv->out_time = jiffies;
+	}
+	if (time_after(jiffies, priv->out_time10 + conf->measure_rate * 10*HZ))
+	{
+		conf->out_speed10 = priv->out_bytes10 / (10 * conf->measure_rate);
+		priv->out_bytes10 = 0;
+		priv->out_time10 = jiffies;
+	}
+	if (TXHEAD(dev).offset && TXTAIL(dev).offset)
+	{
+		netif_stop_queue (dev);
+		return 0;
+	}
+	else
+		netif_start_queue (dev);
+
+
+	IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
+		printk(KERN_WARNING "%s Transmit t %2x:%2x:%2x:%2x:%2x:%2x f %2x:%2x:%2x:%2x:%2x:%2x \n", dev->name,
+		   (unsigned char) buf[0], (unsigned char) buf[1], (unsigned char) buf[2], (unsigned char) buf[3],
+		   (unsigned char) buf[4], (unsigned char) buf[5], (unsigned char) buf[6], (unsigned char) buf[7],
+		   (unsigned char) buf[8], (unsigned char) buf[9], (unsigned char) buf[10], (unsigned char) buf[11]);
+
+	IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "TX command prepare for buffer %d\n", priv->txLast);
+
+	arlan_command(dev, ARLAN_COMMAND_TX);
+
+	priv->tx_last_sent = jiffies;
+
+	IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("%s TX Qued %d bytes \n", dev->name, length);
+
+	ARLAN_DEBUG_EXIT("arlan_hw_tx");
+
+	return 0;
+}
+
+
+static int arlan_hw_config(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	struct arlan_conf_stru *conf = priv->Conf;
+
+	ARLAN_DEBUG_ENTRY("arlan_hw_config");
+
+	printk(KERN_NOTICE "%s arlan configure called \n", dev->name);
+	if (arlan_EEPROM_bad)
+		printk(KERN_NOTICE "arlan configure with eeprom bad option \n");
+
+
+	WRITESHM(arlan->spreadingCode, conf->spreadingCode, u_char);
+	WRITESHM(arlan->channelSet, conf->channelSet, u_char);
+
+	if (arlan_EEPROM_bad)
+		WRITESHM(arlan->defaultChannelSet, conf->channelSet, u_char);
+
+	WRITESHM(arlan->channelNumber, conf->channelNumber, u_char);
+
+	WRITESHM(arlan->scramblingDisable, conf->scramblingDisable, u_char);
+	WRITESHM(arlan->txAttenuation, conf->txAttenuation, u_char);
+
+	WRITESHM(arlan->systemId, conf->systemId, u_int);
+
+	WRITESHM(arlan->maxRetries, conf->maxRetries, u_char);
+	WRITESHM(arlan->receiveMode, conf->receiveMode, u_char);
+	WRITESHM(arlan->priority, conf->priority, u_char);
+	WRITESHM(arlan->rootOrRepeater, conf->rootOrRepeater, u_char);
+	WRITESHM(arlan->SID, conf->SID, u_int);
+
+	WRITESHM(arlan->registrationMode, conf->registrationMode, u_char);
+
+	WRITESHM(arlan->registrationFill, conf->registrationFill, u_char);
+	WRITESHM(arlan->localTalkAddress, conf->localTalkAddress, u_char);
+	WRITESHM(arlan->codeFormat, conf->codeFormat, u_char);
+	WRITESHM(arlan->numChannels, conf->numChannels, u_char);
+	WRITESHM(arlan->channel1, conf->channel1, u_char);
+	WRITESHM(arlan->channel2, conf->channel2, u_char);
+	WRITESHM(arlan->channel3, conf->channel3, u_char);
+	WRITESHM(arlan->channel4, conf->channel4, u_char);
+	WRITESHM(arlan->radioNodeId, conf->radioNodeId, u_short);
+	WRITESHM(arlan->SID, conf->SID, u_int);
+	WRITESHM(arlan->waitTime, conf->waitTime, u_short);
+	WRITESHM(arlan->lParameter, conf->lParameter, u_short);
+	memcpy_toio(&(arlan->_15), &(conf->_15), 3);
+	WRITESHM(arlan->_15, conf->_15, u_short);
+	WRITESHM(arlan->headerSize, conf->headerSize, u_short);
+	if (arlan_EEPROM_bad)
+		WRITESHM(arlan->hardwareType, conf->hardwareType, u_char);
+	WRITESHM(arlan->radioType, conf->radioType, u_char);
+	if (arlan_EEPROM_bad)
+		WRITESHM(arlan->radioModule, conf->radioType, u_char);
+
+	memcpy_toio(arlan->encryptionKey + keyStart, encryptionKey, 8);
+	memcpy_toio(arlan->name, conf->siteName, 16);
+
+	WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_CONF);	/* do configure */
+	memset_io(arlan->commandParameter, 0, 0xf);	/* 0xf */
+	memset_io(arlan->commandParameter + 1, 0, 2);
+	if (conf->writeEEPROM)
+	{
+		  memset_io(arlan->commandParameter, conf->writeEEPROM, 1);
+//		conf->writeEEPROM=0;
+	}
+	if (conf->registrationMode && conf->registrationInterrupts)
+		memset_io(arlan->commandParameter + 3, 1, 1);
+	else
+		memset_io(arlan->commandParameter + 3, 0, 1);
+
+	priv->irq_test_done = 0;
+
+	if (conf->tx_queue_len)
+		dev->tx_queue_len = conf->tx_queue_len;
+	udelay(100);
+
+	ARLAN_DEBUG_EXIT("arlan_hw_config");
+	return 0;
+}
+
+
+static int arlan_read_card_configuration(struct net_device *dev)
+{
+	u_char tlx415;
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	struct arlan_conf_stru *conf = priv->Conf;
+
+	ARLAN_DEBUG_ENTRY("arlan_read_card_configuration");
+
+	if (radioNodeId == radioNodeIdUNKNOWN)
+	{
+		READSHM(conf->radioNodeId, arlan->radioNodeId, u_short);
+	}
+	else
+		conf->radioNodeId = radioNodeId;
+		
+	if (SID == SIDUNKNOWN)
+	{
+		READSHM(conf->SID, arlan->SID, u_int);
+	}
+	else conf->SID = SID;
+		
+	if (spreadingCode == spreadingCodeUNKNOWN)
+	{
+		  READSHM(conf->spreadingCode, arlan->spreadingCode, u_char);
+	}
+	else
+		conf->spreadingCode = spreadingCode;
+		
+	if (channelSet == channelSetUNKNOWN)
+	{
+		READSHM(conf->channelSet, arlan->channelSet, u_char);
+	}
+	else conf->channelSet = channelSet;
+
+	if (channelNumber == channelNumberUNKNOWN)
+	{
+		READSHM(conf->channelNumber, arlan->channelNumber, u_char);
+	}
+	else conf->channelNumber = channelNumber;
+	
+	READSHM(conf->scramblingDisable, arlan->scramblingDisable, u_char);
+	READSHM(conf->txAttenuation, arlan->txAttenuation, u_char);
+	
+	if (systemId == systemIdUNKNOWN)
+	{
+		READSHM(conf->systemId, arlan->systemId, u_int);
+	} 
+	else conf->systemId = systemId;
+	
+	READSHM(conf->maxDatagramSize, arlan->maxDatagramSize, u_short);
+	READSHM(conf->maxFrameSize, arlan->maxFrameSize, u_short);
+	READSHM(conf->maxRetries, arlan->maxRetries, u_char);
+	READSHM(conf->receiveMode, arlan->receiveMode, u_char);
+	READSHM(conf->priority, arlan->priority, u_char);
+	READSHM(conf->rootOrRepeater, arlan->rootOrRepeater, u_char);
+
+	if (SID == SIDUNKNOWN)
+	{
+		  READSHM(conf->SID, arlan->SID, u_int);
+	}
+	else conf->SID = SID;
+	
+	if (registrationMode == registrationModeUNKNOWN)
+	{
+		  READSHM(conf->registrationMode, arlan->registrationMode, u_char);
+	}
+	else conf->registrationMode = registrationMode;
+	
+	READSHM(conf->registrationFill, arlan->registrationFill, u_char);
+	READSHM(conf->localTalkAddress, arlan->localTalkAddress, u_char);
+	READSHM(conf->codeFormat, arlan->codeFormat, u_char);
+	READSHM(conf->numChannels, arlan->numChannels, u_char);
+	READSHM(conf->channel1, arlan->channel1, u_char);
+	READSHM(conf->channel2, arlan->channel2, u_char);
+	READSHM(conf->channel3, arlan->channel3, u_char);
+	READSHM(conf->channel4, arlan->channel4, u_char);
+	READSHM(conf->waitTime, arlan->waitTime, u_short);
+	READSHM(conf->lParameter, arlan->lParameter, u_short);
+	READSHM(conf->_15, arlan->_15, u_short);
+	READSHM(conf->headerSize, arlan->headerSize, u_short);
+	READSHM(conf->hardwareType, arlan->hardwareType, u_char);
+	READSHM(conf->radioType, arlan->radioModule, u_char);
+	
+	if (conf->radioType == 0)
+		conf->radioType = 0xc;
+
+	WRITESHM(arlan->configStatus, 0xA5, u_char);
+	READSHM(tlx415, arlan->configStatus, u_char);
+	
+	if (tlx415 != 0xA5)
+		printk(KERN_INFO "%s tlx415 chip \n", dev->name);
+	
+	conf->txClear = 0;
+	conf->txRetries = 1;
+	conf->txRouting = 1;
+	conf->txScrambled = 0;
+	conf->rxParameter = 1;
+	conf->txTimeoutMs = 4000;
+	conf->waitCardTimeout = 100000;
+	conf->receiveMode = ARLAN_RCV_CLEAN;
+	memcpy_fromio(conf->siteName, arlan->name, 16);
+	conf->siteName[16] = '\0';
+	conf->retries = retries;
+	conf->tx_delay_ms = tx_delay_ms;
+	conf->ReTransmitPacketMaxSize = 200;
+	conf->waitReTransmitPacketMaxSize = 200;
+	conf->txAckTimeoutMs = 900;
+	conf->fastReTransCount = 3;
+
+	ARLAN_DEBUG_EXIT("arlan_read_card_configuration");
+
+	return 0;
+}
+
+
+static int lastFoundAt = 0xbe000;
+
+
+/*
+ * This is the real probe routine. Linux has a history of friendly device
+ * probes on the ISA bus. A good device probes avoids doing writes, and
+ * verifies that the correct device exists and functions.
+ */
+#define ARLAN_SHMEM_SIZE	0x2000
+static int __init arlan_check_fingerprint(unsigned long memaddr)
+{
+	static const char probeText[] = "TELESYSTEM SLW INC.    ARLAN \0";
+	volatile struct arlan_shmem __iomem *arlan = (struct arlan_shmem *) memaddr;
+	unsigned long paddr = virt_to_phys((void *) memaddr);
+	char tempBuf[49];
+
+	ARLAN_DEBUG_ENTRY("arlan_check_fingerprint");
+
+	if (!request_mem_region(paddr, ARLAN_SHMEM_SIZE, "arlan")) {
+		// printk(KERN_WARNING "arlan: memory region %lx excluded from probing \n",paddr);
+		return -ENODEV;
+	}
+
+	memcpy_fromio(tempBuf, arlan->textRegion, 29);
+	tempBuf[30] = 0;
+
+	/* check for card at this address */
+	if (0 != strncmp(tempBuf, probeText, 29)){
+ 		release_mem_region(paddr, ARLAN_SHMEM_SIZE);
+		return -ENODEV;
+	}
+
+//   printk(KERN_INFO "arlan found at 0x%x \n",memaddr);
+	ARLAN_DEBUG_EXIT("arlan_check_fingerprint");
+
+	return 0;
+}
+
+static int arlan_change_mtu(struct net_device *dev, int new_mtu)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+	struct arlan_conf_stru *conf = priv->Conf;
+
+	ARLAN_DEBUG_ENTRY("arlan_change_mtu");
+	if (new_mtu > 2032)
+		return -EINVAL;
+	dev->mtu = new_mtu;
+	if (new_mtu < 256)
+		new_mtu = 256;	/* cards book suggests 1600 */
+	conf->maxDatagramSize = new_mtu;
+	conf->maxFrameSize = new_mtu + 48;
+
+	arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
+	printk(KERN_NOTICE "%s mtu changed to %d \n", dev->name, new_mtu);
+
+	ARLAN_DEBUG_EXIT("arlan_change_mtu");
+
+	return 0;
+}
+
+static int arlan_mac_addr(struct net_device *dev, void *p)
+{
+	struct sockaddr *addr = p;
+
+
+	ARLAN_DEBUG_ENTRY("arlan_mac_addr");
+	return -EINVAL;
+
+	if (netif_running(dev))
+		return -EBUSY;
+	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+	ARLAN_DEBUG_EXIT("arlan_mac_addr");
+	return 0;
+}
+
+static const struct net_device_ops arlan_netdev_ops = {
+	.ndo_open		= arlan_open,
+	.ndo_stop		= arlan_close,
+	.ndo_start_xmit		= arlan_tx,
+	.ndo_get_stats		= arlan_statistics,
+	.ndo_set_multicast_list = arlan_set_multicast,
+	.ndo_change_mtu		= arlan_change_mtu,
+	.ndo_set_mac_address	= arlan_mac_addr,
+	.ndo_tx_timeout		= arlan_tx_timeout,
+	.ndo_validate_addr	= eth_validate_addr,
+};
+
+static int __init arlan_setup_device(struct net_device *dev, int num)
+{
+	struct arlan_private *ap = netdev_priv(dev);
+	int err;
+
+	ARLAN_DEBUG_ENTRY("arlan_setup_device");
+
+	ap->conf = (struct arlan_shmem *)(ap+1);
+
+	dev->tx_queue_len = tx_queue_len;
+	dev->netdev_ops = &arlan_netdev_ops;
+	dev->watchdog_timeo = 3*HZ;
+	
+	ap->irq_test_done = 0;
+	ap->Conf = &arlan_conf[num];
+
+	ap->Conf->pre_Command_Wait = 40;
+	ap->Conf->rx_tweak1 = 30;
+	ap->Conf->rx_tweak2 = 0;
+
+
+	err = register_netdev(dev);
+	if (err) {
+		release_mem_region(virt_to_phys((void *) dev->mem_start), 
+			   ARLAN_SHMEM_SIZE);
+		free_netdev(dev);
+		return err;
+	}
+	arlan_device[num] = dev;
+	ARLAN_DEBUG_EXIT("arlan_setup_device");
+	return 0;
+}
+
+static int __init arlan_probe_here(struct net_device *dev, 
+				   unsigned long memaddr)
+{
+	struct arlan_private *ap = netdev_priv(dev);
+
+	ARLAN_DEBUG_ENTRY("arlan_probe_here");
+
+	if (arlan_check_fingerprint(memaddr))
+		return -ENODEV;
+
+	printk(KERN_NOTICE "%s: Arlan found at %llx, \n ", dev->name, 
+	       (u64) virt_to_phys((void*)memaddr));
+
+	ap->card = (void *) memaddr;
+	dev->mem_start = memaddr;
+	dev->mem_end = memaddr + ARLAN_SHMEM_SIZE-1;
+
+	if (dev->irq < 2)
+	{
+		READSHM(dev->irq, ap->card->irqLevel, u_char);
+	} else if (dev->irq == 2)
+		dev->irq = 9;
+
+	arlan_read_card_configuration(dev);
+
+	ARLAN_DEBUG_EXIT("arlan_probe_here");
+	return 0;
+}
+
+
+static int arlan_open(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	int ret = 0;
+
+	ARLAN_DEBUG_ENTRY("arlan_open");
+
+	ret = request_irq(dev->irq, &arlan_interrupt, 0, dev->name, dev);
+	if (ret)
+	{
+		printk(KERN_ERR "%s: unable to get IRQ %d .\n",
+			dev->name, dev->irq);
+		return ret;
+	}
+
+
+	priv->bad = 0;
+	priv->lastReset = 0;
+	priv->reset = 0;
+	memcpy_fromio(dev->dev_addr, arlan->lanCardNodeId, 6);
+	memset(dev->broadcast, 0xff, 6);
+	dev->tx_queue_len = tx_queue_len;
+	priv->interrupt_processing_active = 0;
+	spin_lock_init(&priv->lock);
+
+	netif_start_queue (dev);
+
+	priv->registrationLostCount = 0;
+	priv->registrationLastSeen = jiffies;
+	priv->txLast = 0;
+	priv->tx_command_given = 0;
+	priv->rx_command_given = 0;
+	
+	priv->reRegisterExp = 1;
+	priv->tx_last_sent = jiffies - 1;
+	priv->tx_last_cleared = jiffies;
+	priv->Conf->writeEEPROM = 0;
+	priv->Conf->registrationInterrupts = 1;
+
+	init_timer(&priv->timer);
+	priv->timer.expires = jiffies + HZ / 10;
+	priv->timer.data = (unsigned long) dev;
+	priv->timer.function = &arlan_registration_timer;	/* timer handler */
+
+	arlan_command(dev, ARLAN_COMMAND_POWERUP | ARLAN_COMMAND_LONG_WAIT_NOW);
+	mdelay(200);
+	add_timer(&priv->timer);
+
+	ARLAN_DEBUG_EXIT("arlan_open");
+	return 0;
+}
+
+
+static void arlan_tx_timeout (struct net_device *dev)
+{
+	printk(KERN_ERR "%s: arlan transmit timed out, kernel decided\n", dev->name);
+	/* Try to restart the adaptor. */
+	arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
+	// dev->trans_start = jiffies;
+	// netif_start_queue (dev);
+}
+
+
+static netdev_tx_t arlan_tx(struct sk_buff *skb, struct net_device *dev)
+{
+	short length;
+	unsigned char *buf;
+
+	ARLAN_DEBUG_ENTRY("arlan_tx");
+	
+	length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
+	buf = skb->data;
+
+	if (length + 0x12 > 0x800) {
+		printk(KERN_ERR "TX RING overflow \n");
+		netif_stop_queue (dev);
+	}
+
+	if (arlan_hw_tx(dev, buf, length) == -1)
+		goto bad_end;
+
+	dev->trans_start = jiffies;
+
+	dev_kfree_skb(skb);
+
+	arlan_process_interrupt(dev);
+	ARLAN_DEBUG_EXIT("arlan_tx");
+	return NETDEV_TX_OK;
+
+bad_end:
+	arlan_process_interrupt(dev);
+	netif_stop_queue (dev);
+	ARLAN_DEBUG_EXIT("arlan_tx");
+	return NETDEV_TX_BUSY;
+}
+
+
+static inline int DoNotReTransmitCrap(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+
+	if (TXLAST(dev).length < priv->Conf->ReTransmitPacketMaxSize)
+		return 1;
+	return 0;
+
+}
+
+static inline int DoNotWaitReTransmitCrap(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+
+	if (TXLAST(dev).length < priv->Conf->waitReTransmitPacketMaxSize)
+		return 1;
+	return 0;
+}
+
+static inline void arlan_queue_retransmit(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+
+	ARLAN_DEBUG_ENTRY("arlan_queue_retransmit");
+
+	if (DoNotWaitReTransmitCrap(dev))
+	{
+		  arlan_drop_tx(dev);
+	} else
+		priv->ReTransmitRequested++;
+
+	ARLAN_DEBUG_EXIT("arlan_queue_retransmit");
+}
+
+static inline void RetryOrFail(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+
+	ARLAN_DEBUG_ENTRY("RetryOrFail");
+
+	if (priv->retransmissions > priv->Conf->retries ||
+	    DoNotReTransmitCrap(dev))
+	{
+		arlan_drop_tx(dev);
+	}
+	else if (priv->bad <= priv->Conf->fastReTransCount)
+	{
+		arlan_retransmit_now(dev);
+	}
+	else arlan_queue_retransmit(dev);
+
+	ARLAN_DEBUG_EXIT("RetryOrFail");
+}
+
+
+static void arlan_tx_done_interrupt(struct net_device *dev, int status)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+
+	ARLAN_DEBUG_ENTRY("arlan_tx_done_interrupt");
+
+	priv->tx_last_cleared = jiffies;
+	priv->tx_command_given = 0;
+	switch (status)
+	{
+		case 1:
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+				printk("arlan intr: transmit OK\n");
+			dev->stats.tx_packets++;
+			priv->bad = 0;
+			priv->reset = 0;
+			priv->retransmissions = 0;
+			if (priv->Conf->tx_delay_ms)
+			{
+				priv->tx_done_delayed = jiffies + (priv->Conf->tx_delay_ms * HZ) / 1000 + 1;
+			}
+			else
+			{
+				TXLAST(dev).offset = 0;
+				if (priv->txLast)
+					priv->txLast = 0;
+				else if (TXTAIL(dev).offset)
+					priv->txLast = 1;
+				if (TXLAST(dev).offset)
+				{
+					arlan_retransmit_now(dev);
+					dev->trans_start = jiffies;
+				}
+				if (!TXHEAD(dev).offset || !TXTAIL(dev).offset)
+				{
+					netif_wake_queue (dev);
+				}
+			}
+		}
+		break;
+		
+		case 2:
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+				printk("arlan intr: transmit timed out\n");
+			priv->bad += 1;
+			//arlan_queue_retransmit(dev);
+			RetryOrFail(dev);
+		}
+		break;
+
+		case 3:
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+				printk("arlan intr: transmit max retries\n");
+			priv->bad += 1;
+			priv->reset = 0;
+			//arlan_queue_retransmit(dev);
+			RetryOrFail(dev);
+		}
+		break;
+		
+		case 4:
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+				printk("arlan intr: transmit aborted\n");
+			priv->bad += 1;
+			arlan_queue_retransmit(dev);
+			//RetryOrFail(dev);
+		}
+		break;
+
+		case 5:
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+				printk("arlan intr: transmit not registered\n");
+			priv->bad += 1;
+			//debug=101;
+			arlan_queue_retransmit(dev);
+		}
+		break;
+
+		case 6:
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN) 
+				printk("arlan intr: transmit destination full\n");
+			priv->bad += 1;
+			priv->reset = 0;
+			//arlan_drop_tx(dev);
+			arlan_queue_retransmit(dev);
+		}
+		break;
+
+		case 7:
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+				printk("arlan intr: transmit unknown ack\n");
+			priv->bad += 1;
+			priv->reset = 0;
+			arlan_queue_retransmit(dev);
+		}
+		break;
+		
+		case 8:
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+				printk("arlan intr: transmit dest mail box full\n");
+			priv->bad += 1;
+			priv->reset = 0;
+			//arlan_drop_tx(dev);
+			arlan_queue_retransmit(dev);
+		}
+		break;
+
+		case 9:
+		{
+			IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+				printk("arlan intr: transmit root dest not reg.\n");
+			priv->bad += 1;
+			priv->reset = 1;
+			//arlan_drop_tx(dev);
+			arlan_queue_retransmit(dev);
+		}
+		break;
+
+		default:
+		{
+			printk(KERN_ERR "arlan intr: transmit status unknown\n");
+			priv->bad += 1;
+			priv->reset = 1;
+			arlan_drop_tx(dev);
+		}
+	}
+
+	ARLAN_DEBUG_EXIT("arlan_tx_done_interrupt");
+}
+
+
+static void arlan_rx_interrupt(struct net_device *dev, u_char rxStatus, u_short rxOffset, u_short pkt_len)
+{
+	char *skbtmp;
+	int i = 0;
+
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	struct arlan_conf_stru *conf = priv->Conf;
+
+
+	ARLAN_DEBUG_ENTRY("arlan_rx_interrupt");
+	// by spec,   not                WRITESHMB(arlan->rxStatus,0x00);
+	// prohibited here              arlan_command(dev, ARLAN_COMMAND_RX);
+
+	if (pkt_len < 10 || pkt_len > 2048)
+	{
+		printk(KERN_WARNING "%s: got too short or long packet, len %d \n", dev->name, pkt_len);
+		return;
+	}
+	if (rxOffset + pkt_len > 0x2000)
+	{
+		printk("%s: got too long packet, len %d offset %x\n", dev->name, pkt_len, rxOffset);
+		return;
+	}
+	priv->in_bytes += pkt_len;
+	priv->in_bytes10 += pkt_len;
+	if (conf->measure_rate < 1)
+		conf->measure_rate = 1;
+	if (time_after(jiffies, priv->in_time + conf->measure_rate * HZ))
+	{
+		conf->in_speed = priv->in_bytes / conf->measure_rate;
+		priv->in_bytes = 0;
+		priv->in_time = jiffies;
+	}
+	if (time_after(jiffies, priv->in_time10 + conf->measure_rate * 10*HZ))
+	{
+		conf->in_speed10 = priv->in_bytes10 / (10 * conf->measure_rate);
+		priv->in_bytes10 = 0;
+		priv->in_time10 = jiffies;
+	}
+	DEBUGSHM(1, "arlan rcv pkt rxStatus= %d ", arlan->rxStatus, u_char);
+	switch (rxStatus)
+	{
+		case 1:
+		case 2:
+		case 3:
+		{
+			/* Malloc up new buffer. */
+			struct sk_buff *skb;
+
+			DEBUGSHM(50, "arlan recv pkt offs=%d\n", arlan->rxOffset, u_short);
+			DEBUGSHM(1, "arlan rxFrmType = %d \n", arlan->rxFrmType, u_char);
+			DEBUGSHM(1, KERN_INFO "arlan rx scrambled = %d \n", arlan->scrambled, u_char);
+
+			/* here we do multicast filtering to avoid slow 8-bit memcopy */
+#ifdef ARLAN_MULTICAST
+			if (!(dev->flags & IFF_ALLMULTI) &&
+				!(dev->flags & IFF_PROMISC) &&
+				dev->mc_list)
+			{
+				char hw_dst_addr[6];
+				struct dev_mc_list *dmi = dev->mc_list;
+				int i;
+
+				memcpy_fromio(hw_dst_addr, arlan->ultimateDestAddress, 6);
+				if (hw_dst_addr[0] == 0x01)
+				{
+					if (mdebug)
+						if (hw_dst_addr[1] == 0x00)
+							printk(KERN_ERR "%s mcast 0x0100 \n", dev->name);
+						else if (hw_dst_addr[1] == 0x40)
+							printk(KERN_ERR "%s m/bcast 0x0140 \n", dev->name);
+					while (dmi)
+					{
+						if (dmi->dmi_addrlen == 6) {
+							if (arlan_debug & ARLAN_DEBUG_HEADER_DUMP)
+								printk(KERN_ERR "%s mcl %pM\n",
+								       dev->name, dmi->dmi_addr);
+							for (i = 0; i < 6; i++)
+								if (dmi->dmi_addr[i] != hw_dst_addr[i])
+									break;
+							if (i == 6)
+								break;
+						} else
+							printk(KERN_ERR "%s: invalid multicast address length given.\n", dev->name);
+						dmi = dmi->next;
+					}
+					/* we reach here if multicast filtering is on and packet 
+					 * is multicast and not for receive */
+					goto end_of_interrupt;
+				}
+			}
+#endif				// ARLAN_MULTICAST
+			/* multicast filtering ends here */
+			pkt_len += ARLAN_FAKE_HDR_LEN;
+
+			skb = dev_alloc_skb(pkt_len + 4);
+			if (skb == NULL)
+			{
+				printk(KERN_ERR "%s: Memory squeeze, dropping packet.\n", dev->name);
+				dev->stats.rx_dropped++;
+				break;
+			}
+			skb_reserve(skb, 2);
+			skbtmp = skb_put(skb, pkt_len);
+
+			memcpy_fromio(skbtmp + ARLAN_FAKE_HDR_LEN, ((char __iomem *) arlan) + rxOffset, pkt_len - ARLAN_FAKE_HDR_LEN);
+			memcpy_fromio(skbtmp, arlan->ultimateDestAddress, 6);
+			memcpy_fromio(skbtmp + 6, arlan->rxSrc, 6);
+			WRITESHMB(arlan->rxStatus, 0x00);
+			arlan_command(dev, ARLAN_COMMAND_RX);
+
+			IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
+			{
+				char immedDestAddress[6];
+				char immedSrcAddress[6];
+				memcpy_fromio(immedDestAddress, arlan->immedDestAddress, 6);
+				memcpy_fromio(immedSrcAddress, arlan->immedSrcAddress, 6);
+
+				printk(KERN_WARNING "%s t %pM f %pM imd %pM ims %pM\n",
+				       dev->name, skbtmp,
+				       &skbtmp[6],
+				       immedDestAddress,
+				       immedSrcAddress);
+			}
+			skb->protocol = eth_type_trans(skb, dev);
+			IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
+				if (skb->protocol != 0x608 && skb->protocol != 0x8)
+				{
+					for (i = 0; i <= 22; i++)
+						printk("%02x:", (u_char) skbtmp[i + 12]);
+					printk(KERN_ERR "\n");
+					printk(KERN_WARNING "arlan kernel pkt type trans %x \n", skb->protocol);
+				}
+			netif_rx(skb);
+			dev->stats.rx_packets++;
+			dev->stats.rx_bytes += pkt_len;
+		}
+		break;
+		
+		default:
+			printk(KERN_ERR "arlan intr: received unknown status\n");
+			dev->stats.rx_crc_errors++;
+			break;
+	}
+	ARLAN_DEBUG_EXIT("arlan_rx_interrupt");
+}
+
+static void arlan_process_interrupt(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	u_char rxStatus = READSHMB(arlan->rxStatus);
+	u_char txStatus = READSHMB(arlan->txStatus);
+	u_short rxOffset = READSHMS(arlan->rxOffset);
+	u_short pkt_len = READSHMS(arlan->rxLength);
+	int interrupt_count = 0;
+
+	ARLAN_DEBUG_ENTRY("arlan_process_interrupt");
+
+	if (test_and_set_bit(0, (void *) &priv->interrupt_processing_active))
+	{
+		if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
+			printk(KERN_ERR "interrupt chain reentering \n");
+		goto end_int_process;
+	}
+	while ((rxStatus || txStatus || priv->interrupt_ack_requested)
+			&& (interrupt_count < 5))
+	{
+		if (rxStatus)
+			priv->last_rx_int_ack_time = jiffies;
+
+		arlan_command(dev, ARLAN_COMMAND_INT_ACK);
+		arlan_command(dev, ARLAN_COMMAND_INT_ENABLE);
+		
+		IFDEBUG(ARLAN_DEBUG_INTERRUPT)
+			printk(KERN_ERR "%s:  got IRQ rx %x tx %x comm %x rxOff %x rxLen %x \n",
+					dev->name, rxStatus, txStatus, READSHMB(arlan->commandByte),
+					rxOffset, pkt_len);
+
+		if (rxStatus == 0 && txStatus == 0)
+		{
+			if (priv->irq_test_done)
+			{
+				if (!registrationBad(dev))
+					IFDEBUG(ARLAN_DEBUG_INTERRUPT) printk(KERN_ERR "%s unknown interrupt(nop? regLost ?) reason tx %d rx %d ",
+										    dev->name, txStatus, rxStatus);
+			} else {
+				IFDEBUG(ARLAN_DEBUG_INTERRUPT)
+					printk(KERN_INFO "%s irq $%d test OK \n", dev->name, dev->irq);
+
+			}
+			priv->interrupt_ack_requested = 0;
+			goto ends;
+		}
+		if (txStatus != 0)
+		{
+			WRITESHMB(arlan->txStatus, 0x00);
+			arlan_tx_done_interrupt(dev, txStatus);
+			goto ends;
+		}
+		if (rxStatus == 1 || rxStatus == 2)
+		{		/* a packet waiting */
+			arlan_rx_interrupt(dev, rxStatus, rxOffset, pkt_len);
+			goto ends;
+		}
+		if (rxStatus > 2 && rxStatus < 0xff)
+		{
+			WRITESHMB(arlan->rxStatus, 0x00);
+			printk(KERN_ERR "%s unknown rxStatus reason tx %d rx %d ",
+				dev->name, txStatus, rxStatus);
+			goto ends;
+		}
+		if (rxStatus == 0xff)
+		{
+			WRITESHMB(arlan->rxStatus, 0x00);
+			arlan_command(dev, ARLAN_COMMAND_RX);
+			if (registrationBad(dev))
+				netif_device_detach(dev);
+			if (!registrationBad(dev))
+			{
+				priv->registrationLastSeen = jiffies;
+				if (!netif_queue_stopped(dev) && !priv->under_reset && !priv->under_config)
+					netif_wake_queue (dev);
+			}
+			goto ends;
+		}
+ends:
+
+		arlan_command_process(dev);
+
+		rxStatus = READSHMB(arlan->rxStatus);
+		txStatus = READSHMB(arlan->txStatus);
+		rxOffset = READSHMS(arlan->rxOffset);
+		pkt_len = READSHMS(arlan->rxLength);
+
+
+		priv->irq_test_done = 1;
+
+		interrupt_count++;
+	}
+	priv->interrupt_processing_active = 0;
+
+end_int_process:
+	arlan_command_process(dev);
+
+	ARLAN_DEBUG_EXIT("arlan_process_interrupt");
+	return;
+}
+
+static irqreturn_t arlan_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	u_char rxStatus = READSHMB(arlan->rxStatus);
+	u_char txStatus = READSHMB(arlan->txStatus);
+
+	ARLAN_DEBUG_ENTRY("arlan_interrupt");
+
+
+	if (!rxStatus && !txStatus)
+		priv->interrupt_ack_requested++;
+
+	arlan_process_interrupt(dev);
+	
+	priv->irq_test_done = 1;
+
+	ARLAN_DEBUG_EXIT("arlan_interrupt");
+	return IRQ_HANDLED;
+
+}
+
+
+static int arlan_close(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+
+	ARLAN_DEBUG_ENTRY("arlan_close");
+
+	del_timer_sync(&priv->timer);
+
+	arlan_command(dev, ARLAN_COMMAND_POWERDOWN);
+
+	IFDEBUG(ARLAN_DEBUG_STARTUP)
+		printk(KERN_NOTICE "%s: Closing device\n", dev->name);
+
+	netif_stop_queue(dev);
+	free_irq(dev->irq, dev);
+
+	ARLAN_DEBUG_EXIT("arlan_close");
+	return 0;
+}
+
+#ifdef ARLAN_DEBUGGING
+static long alignLong(volatile u_char * ptr)
+{
+	long ret;
+	memcpy_fromio(&ret, (void *) ptr, 4);
+	return ret;
+}
+#endif
+
+/*
+ * Get the current statistics.
+ * This may be called with the card open or closed.
+ */
+
+static struct net_device_stats *arlan_statistics(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+
+
+	ARLAN_DEBUG_ENTRY("arlan_statistics");
+
+	/* Update the statistics from the device registers. */
+
+	READSHM(dev->stats.collisions, arlan->numReTransmissions, u_int);
+	READSHM(dev->stats.rx_crc_errors, arlan->numCRCErrors, u_int);
+	READSHM(dev->stats.rx_dropped, arlan->numFramesDiscarded, u_int);
+	READSHM(dev->stats.rx_fifo_errors, arlan->numRXBufferOverflows, u_int);
+	READSHM(dev->stats.rx_frame_errors, arlan->numReceiveFramesLost, u_int);
+	READSHM(dev->stats.rx_over_errors, arlan->numRXOverruns, u_int);
+	READSHM(dev->stats.rx_packets, arlan->numDatagramsReceived, u_int);
+	READSHM(dev->stats.tx_aborted_errors, arlan->numAbortErrors, u_int);
+	READSHM(dev->stats.tx_carrier_errors, arlan->numStatusTimeouts, u_int);
+	READSHM(dev->stats.tx_dropped, arlan->numDatagramsDiscarded, u_int);
+	READSHM(dev->stats.tx_fifo_errors, arlan->numTXUnderruns, u_int);
+	READSHM(dev->stats.tx_packets, arlan->numDatagramsTransmitted, u_int);
+	READSHM(dev->stats.tx_window_errors, arlan->numHoldOffs, u_int);
+
+	ARLAN_DEBUG_EXIT("arlan_statistics");
+
+	return &dev->stats;
+}
+
+
+static void arlan_set_multicast(struct net_device *dev)
+{
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	struct arlan_conf_stru *conf = priv->Conf;
+	int board_conf_needed = 0;
+
+
+	ARLAN_DEBUG_ENTRY("arlan_set_multicast");
+
+	if (dev->flags & IFF_PROMISC)
+	{
+		unsigned char recMode;
+		READSHM(recMode, arlan->receiveMode, u_char);
+		conf->receiveMode = (ARLAN_RCV_PROMISC | ARLAN_RCV_CONTROL);
+		if (conf->receiveMode != recMode)
+			board_conf_needed = 1;
+	}
+	else
+	{
+		/* turn off promiscuous mode  */
+		unsigned char recMode;
+		READSHM(recMode, arlan->receiveMode, u_char);
+		conf->receiveMode = ARLAN_RCV_CLEAN | ARLAN_RCV_CONTROL;
+		if (conf->receiveMode != recMode)
+			board_conf_needed = 1;
+	}
+	if (board_conf_needed)
+		arlan_command(dev, ARLAN_COMMAND_CONF);
+
+	ARLAN_DEBUG_EXIT("arlan_set_multicast");
+}
+
+
+struct net_device * __init arlan_probe(int unit)
+{
+	struct net_device *dev;
+	int err;
+	int m;
+
+	ARLAN_DEBUG_ENTRY("arlan_probe");
+
+	if (arlans_found == MAX_ARLANS)
+		return ERR_PTR(-ENODEV);
+
+	/* 
+	 * Reserve space for local data and a copy of the shared memory
+	 * that is used by the /proc interface.
+	 */
+	dev = alloc_etherdev(sizeof(struct arlan_private)
+			     + sizeof(struct arlan_shmem));
+	if (!dev)
+		return ERR_PTR(-ENOMEM);
+
+	if (unit >= 0) {
+		sprintf(dev->name, "eth%d", unit);
+		netdev_boot_setup_check(dev);
+		
+		if (dev->mem_start) {
+			if (arlan_probe_here(dev, dev->mem_start) == 0)
+				goto found;
+			goto not_found;
+		}
+			
+	}
+
+
+	for (m = (int)phys_to_virt(lastFoundAt) + ARLAN_SHMEM_SIZE; 
+	     m <= (int)phys_to_virt(0xDE000); 
+	     m += ARLAN_SHMEM_SIZE)
+	{
+		if (arlan_probe_here(dev, m) == 0)
+		{
+			lastFoundAt = (int)virt_to_phys((void*)m);
+			goto found;
+		}
+	}
+
+	if (lastFoundAt == 0xbe000)
+		printk(KERN_ERR "arlan: No Arlan devices found \n");
+
+ not_found:
+	free_netdev(dev);
+	return ERR_PTR(-ENODEV);
+
+ found:
+	err = arlan_setup_device(dev, arlans_found);
+	if (err)
+		dev = ERR_PTR(err);
+	else if (!arlans_found++)
+		printk(KERN_INFO "Arlan driver %s\n", arlan_version);
+
+	return dev;
+}
+
+#ifdef  MODULE
+int __init init_module(void)
+{
+	int i = 0;
+
+	ARLAN_DEBUG_ENTRY("init_module");
+
+	if (channelSet != channelSetUNKNOWN || channelNumber != channelNumberUNKNOWN || systemId != systemIdUNKNOWN)
+		return -EINVAL;
+
+	for (i = 0; i < MAX_ARLANS; i++) {
+		struct net_device *dev = arlan_probe(i);
+
+		if (IS_ERR(dev)) 
+			return PTR_ERR(dev);
+	}
+	init_arlan_proc();
+	printk(KERN_INFO "Arlan driver %s\n", arlan_version);
+	ARLAN_DEBUG_EXIT("init_module");
+	return 0;
+}
+
+
+void __exit cleanup_module(void)
+{
+	int i = 0;
+	struct net_device *dev;
+
+	ARLAN_DEBUG_ENTRY("cleanup_module");
+
+	IFDEBUG(ARLAN_DEBUG_SHUTDOWN)
+		printk(KERN_INFO "arlan: unloading module\n");
+
+	cleanup_arlan_proc();
+
+	for (i = 0; i < MAX_ARLANS; i++)
+	{
+		dev = arlan_device[i];
+		if (dev) {
+			arlan_command(dev, ARLAN_COMMAND_POWERDOWN );
+
+			unregister_netdev(dev);
+			release_mem_region(virt_to_phys((void *) dev->mem_start), 
+					   ARLAN_SHMEM_SIZE);
+			free_netdev(dev);
+			arlan_device[i] = NULL;
+		}
+	}
+
+	ARLAN_DEBUG_EXIT("cleanup_module");
+}
+
+
+#endif
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/arlan/arlan-proc.c b/drivers/staging/arlan/arlan-proc.c
new file mode 100644
index 000000000000..a8b689635a3b
--- /dev/null
+++ b/drivers/staging/arlan/arlan-proc.c
@@ -0,0 +1,1253 @@
+#include "arlan.h"
+
+#include <linux/sysctl.h>
+
+#ifdef CONFIG_PROC_FS
+
+/* void enableReceive(struct net_device* dev);
+*/
+
+
+
+#define ARLAN_STR_SIZE 	0x2ff0
+#define DEV_ARLAN_INFO 	1
+#define DEV_ARLAN 	1
+#define SARLG(type,var) {\
+	pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x%x\n", #var, READSHMB(priva->card->var));	\
+	}
+
+#define SARLBN(type,var,nn) {\
+	pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x",#var);\
+	for (i=0; i < nn; i++ ) pos += sprintf(arlan_drive_info+pos, "%02x",READSHMB(priva->card->var[i]));\
+	pos += sprintf(arlan_drive_info+pos, "\n");	\
+	}
+
+#define SARLBNpln(type,var,nn) {\
+	for (i=0; i < nn; i++ ) pos += sprintf(arlan_drive_info+pos, "%02x",READSHMB(priva->card->var[i]));\
+	}
+
+#define SARLSTR(var,nn) {\
+	char tmpStr[400];\
+	int  tmpLn = nn;\
+	if (nn > 399 ) tmpLn = 399; \
+	memcpy(tmpStr,(char *) priva->conf->var,tmpLn);\
+	tmpStr[tmpLn] = 0; \
+	pos += sprintf(arlan_drive_info+pos, "%s\t=\t%s \n",#var,priva->conf->var);\
+	}
+
+#define SARLUC(var)  	SARLG(u_char, var)
+#define SARLUCN(var,nn) SARLBN(u_char,var, nn)
+#define SARLUS(var)	SARLG(u_short, var)
+#define SARLUSN(var,nn)	SARLBN(u_short,var, nn)
+#define SARLUI(var)	SARLG(u_int, var)
+
+#define SARLUSA(var) {\
+	u_short tmpVar;\
+	memcpy(&tmpVar, (short *) priva->conf->var,2); \
+	pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x%x\n",#var, tmpVar);\
+}
+
+#define SARLUIA(var) {\
+	u_int tmpVar;\
+	memcpy(&tmpVar, (int* )priva->conf->var,4); \
+	pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x%x\n",#var, tmpVar);\
+}
+
+
+static const char *arlan_diagnostic_info_string(struct net_device *dev)
+{
+
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	u_char diagnosticInfo;
+
+	READSHM(diagnosticInfo, arlan->diagnosticInfo, u_char);
+
+	switch (diagnosticInfo)
+	{
+		case 0xFF:
+			return "Diagnostic info is OK";
+		case 0xFE:
+			return "ERROR EPROM Checksum error ";
+		case 0xFD:
+			return "ERROR Local Ram Test Failed ";
+		case 0xFC:
+			return "ERROR SCC failure ";
+		case 0xFB:
+			return "ERROR BackBone failure ";
+		case 0xFA:
+			return "ERROR transceiver not found ";
+		case 0xF9:
+			return "ERROR no more address space ";
+		case 0xF8:
+			return "ERROR Checksum error  ";
+		case 0xF7:
+			return "ERROR Missing SS Code";
+		case 0xF6:
+			return "ERROR Invalid config format";
+		case 0xF5:
+			return "ERROR Reserved errorcode F5";
+		case 0xF4:
+			return "ERROR Invalid spreading code/channel number";
+		case 0xF3:
+			return "ERROR Load Code Error";
+		case 0xF2:
+			return "ERROR Reserver errorcode F2 ";
+		case 0xF1:
+			return "ERROR Invalid command receivec by LAN card ";
+		case 0xF0:
+			return "ERROR Invalid parameter found in command ";
+		case 0xEF:
+			return "ERROR On-chip timer failure ";
+		case 0xEE:
+			return "ERROR T410 timer failure ";
+		case 0xED:
+			return "ERROR Too Many TxEnable commands ";
+		case 0xEC:
+			return "ERROR EEPROM error on radio module ";
+		default:
+			return "ERROR unknown Diagnostic info reply code ";
+	  }
+}
+
+static const char *arlan_hardware_type_string(struct net_device *dev)
+{
+	u_char hardwareType;
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+
+	READSHM(hardwareType, arlan->hardwareType, u_char);
+	switch (hardwareType)
+	{
+		case 0x00:
+			return "type A450";
+		case 0x01:
+			return "type A650 ";
+		case 0x04:
+			return "type TMA coproc";
+		case 0x0D:
+			return "type A650E ";
+		case 0x18:
+			return "type TMA coproc Australian";
+		case 0x19:
+			return "type A650A ";
+		case 0x26:
+			return "type TMA coproc European";
+		case 0x2E:
+			return "type A655 ";
+		case 0x2F:
+			return "type A655A ";
+		case 0x30:
+			return "type A655E ";
+		case 0x0B:
+			return "type A670 ";
+		case 0x0C:
+			return "type A670E ";
+		case 0x2D:
+			return "type A670A ";
+		case 0x0F:
+			return "type A411T";
+		case 0x16:
+			return "type A411TA";
+		case 0x1B:
+			return "type A440T";
+		case 0x1C:
+			return "type A412T";
+		case 0x1E:
+			return "type A412TA";
+		case 0x22:
+			return "type A411TE";
+		case 0x24:
+			return "type A412TE";
+		case 0x27:
+			return "type A671T ";
+		case 0x29:
+			return "type A671TA ";
+		case 0x2B:
+			return "type A671TE ";
+		case 0x31:
+			return "type A415T ";
+		case 0x33:
+			return "type A415TA ";
+		case 0x35:
+			return "type A415TE ";
+		case 0x37:
+			return "type A672";
+		case 0x39:
+			return "type A672A ";
+		case 0x3B:
+			return "type A672T";
+		case 0x6B:
+			return "type IC2200";
+		default:
+			return "type A672T";
+	}
+}
+#ifdef ARLAN_DEBUGGING
+static void arlan_print_diagnostic_info(struct net_device *dev)
+{
+	int i;
+	u_char diagnosticInfo;
+	u_short diagnosticOffset;
+	u_char hardwareType;
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+
+	//  ARLAN_DEBUG_ENTRY("arlan_print_diagnostic_info");
+
+	if (READSHMB(arlan->configuredStatusFlag) == 0)
+		printk("Arlan: Card NOT configured\n");
+	else
+		printk("Arlan: Card is configured\n");
+
+	READSHM(diagnosticInfo, arlan->diagnosticInfo, u_char);
+	READSHM(diagnosticOffset, arlan->diagnosticOffset, u_short);
+
+	printk(KERN_INFO "%s\n", arlan_diagnostic_info_string(dev));
+
+	if (diagnosticInfo != 0xff)
+		printk("%s arlan: Diagnostic Offset %d \n", dev->name, diagnosticOffset);
+
+	printk("arlan: LAN CODE ID = ");
+	for (i = 0; i < 6; i++)
+		DEBUGSHM(1, "%03d:", arlan->lanCardNodeId[i], u_char);
+	printk("\n");
+
+	printk("arlan: Arlan BroadCast address  = ");
+	for (i = 0; i < 6; i++)
+		DEBUGSHM(1, "%03d:", arlan->broadcastAddress[i], u_char);
+	printk("\n");
+
+	READSHM(hardwareType, arlan->hardwareType, u_char);
+	printk(KERN_INFO "%s\n", arlan_hardware_type_string(dev));
+
+
+	DEBUGSHM(1, "arlan: channelNumber=%d\n", arlan->channelNumber, u_char);
+	DEBUGSHM(1, "arlan: channelSet=%d\n", arlan->channelSet, u_char);
+	DEBUGSHM(1, "arlan: spreadingCode=%d\n", arlan->spreadingCode, u_char);
+	DEBUGSHM(1, "arlan: radioNodeId=%d\n", arlan->radioNodeId, u_short);
+	DEBUGSHM(1, "arlan: SID	=%d\n", arlan->SID, u_short);
+	DEBUGSHM(1, "arlan: rxOffset=%d\n", arlan->rxOffset, u_short);
+
+	DEBUGSHM(1, "arlan: registration mode is %d\n", arlan->registrationMode, u_char);
+
+	printk("arlan: name= ");
+	IFDEBUG(1)
+	
+	for (i = 0; i < 16; i++)
+	{
+		char c;
+		READSHM(c, arlan->name[i], char);
+		if (c)
+			printk("%c", c);
+	}
+	printk("\n");
+
+//   ARLAN_DEBUG_EXIT("arlan_print_diagnostic_info");
+
+}
+
+
+/******************************		TEST 	MEMORY	**************/
+
+static int arlan_hw_test_memory(struct net_device *dev)
+{
+	u_char *ptr;
+	int i;
+	int memlen = sizeof(struct arlan_shmem) - 0xF;	/* avoid control register */
+	volatile char *arlan_mem = (char *) (dev->mem_start);
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+	char pattern;
+
+	ptr = NULL;
+
+	/* hold card in reset state */
+	setHardwareReset(dev);
+
+	/* test memory */
+	pattern = 0;
+	for (i = 0; i < memlen; i++)
+		WRITESHM(arlan_mem[i], ((u_char) pattern++), u_char);
+
+	pattern = 0;
+	for (i = 0; i < memlen; i++)
+	{
+		char res;
+		READSHM(res, arlan_mem[i], char);
+		if (res != pattern++)
+		{
+			printk(KERN_ERR "Arlan driver memory test 1 failed \n");
+			return -1;
+		}
+	}
+
+	pattern = 0;
+	for (i = 0; i < memlen; i++)
+		WRITESHM(arlan_mem[i], ~(pattern++), char);
+
+	pattern = 0;
+	for (i = 0; i < memlen; i++)
+	{
+		char res;
+		READSHM(res, arlan_mem[i], char);
+		if (res != ~(pattern++))
+		{
+			printk(KERN_ERR "Arlan driver memory test 2 failed \n");
+			return -1;
+		}
+	}
+
+	/* zero memory */
+	for (i = 0; i < memlen; i++)
+		WRITESHM(arlan_mem[i], 0x00, char);
+
+	IFDEBUG(1) printk(KERN_INFO "Arlan: memory tests ok\n");
+
+	/* set reset flag and then release reset */
+	WRITESHM(arlan->resetFlag, 0xff, u_char);
+
+	clearChannelAttention(dev);
+	clearHardwareReset(dev);
+
+	/* wait for reset flag to become zero, we'll wait for two seconds */
+	if (arlan_command(dev, ARLAN_COMMAND_LONG_WAIT_NOW))
+	{
+		printk(KERN_ERR "%s arlan: failed to come back from memory test\n", dev->name);
+		return -1;
+	}
+	return 0;
+}
+
+static int arlan_setup_card_by_book(struct net_device *dev)
+{
+	u_char irqLevel, configuredStatusFlag;
+	struct arlan_private *priv = netdev_priv(dev);
+	volatile struct arlan_shmem __iomem *arlan = priv->card;
+
+//	ARLAN_DEBUG_ENTRY("arlan_setup_card");
+
+	READSHM(configuredStatusFlag, arlan->configuredStatusFlag, u_char);
+
+	IFDEBUG(10)
+	if (configuredStatusFlag != 0)
+		IFDEBUG(10) printk("arlan: CARD IS CONFIGURED\n");
+	else
+		IFDEBUG(10) printk("arlan: card is NOT configured\n");
+
+	if (testMemory || (READSHMB(arlan->diagnosticInfo) != 0xff))
+		if (arlan_hw_test_memory(dev))
+			return -1;
+
+	DEBUGSHM(4, "arlan configuredStatus = %d \n", arlan->configuredStatusFlag, u_char);
+	DEBUGSHM(4, "arlan driver diagnostic: 0x%2x\n", arlan->diagnosticInfo, u_char);
+
+	/* issue nop command - no interrupt */
+	arlan_command(dev, ARLAN_COMMAND_NOOP);
+	if (arlan_command(dev, ARLAN_COMMAND_WAIT_NOW) != 0)
+		return -1;
+
+	IFDEBUG(50) printk("1st Noop successfully executed !!\n");
+
+	/* try to turn on the arlan interrupts */
+	clearClearInterrupt(dev);
+	setClearInterrupt(dev);
+	setInterruptEnable(dev);
+
+	/* issue nop command - with interrupt */
+
+	arlan_command(dev, ARLAN_COMMAND_NOOPINT);
+	if (arlan_command(dev, ARLAN_COMMAND_WAIT_NOW) != 0)
+		return -1;
+
+
+	IFDEBUG(50) printk("2nd Noop successfully executed !!\n");
+
+	READSHM(irqLevel, arlan->irqLevel, u_char)
+	
+	if (irqLevel != dev->irq)
+	{
+		IFDEBUG(1) printk(KERN_WARNING "arlan dip switches set irq to %d\n", irqLevel);
+		printk(KERN_WARNING "device driver irq set to %d - does not match\n", dev->irq);
+		dev->irq = irqLevel;
+	}
+	else
+		IFDEBUG(2) printk("irq level is OK\n");
+
+
+	IFDEBUG(3) arlan_print_diagnostic_info(dev);
+
+	arlan_command(dev, ARLAN_COMMAND_CONF);
+
+	READSHM(configuredStatusFlag, arlan->configuredStatusFlag, u_char);
+	if (configuredStatusFlag == 0)
+	{
+		printk(KERN_WARNING "arlan configure failed\n");
+		return -1;
+	}
+	arlan_command(dev, ARLAN_COMMAND_LONG_WAIT_NOW);
+	arlan_command(dev, ARLAN_COMMAND_RX);
+	arlan_command(dev, ARLAN_COMMAND_LONG_WAIT_NOW);
+	printk(KERN_NOTICE "%s: arlan driver version %s loaded\n",
+	       dev->name, arlan_version);
+
+//	ARLAN_DEBUG_EXIT("arlan_setup_card");
+
+	return 0;		/* no errors */
+}
+#endif
+
+#ifdef ARLAN_PROC_INTERFACE
+#ifdef ARLAN_PROC_SHM_DUMP
+
+static char arlan_drive_info[ARLAN_STR_SIZE] = "A655\n\0";
+
+static int arlan_sysctl_info(ctl_table * ctl, int write,
+		      void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+	int i;
+	int retv, pos, devnum;
+	struct arlan_private *priva = NULL;
+	struct net_device *dev;
+	pos = 0;
+	if (write)
+	{
+		printk("wrirte: ");
+		for (i = 0; i < 100; i++)
+			printk("adi %x \n", arlan_drive_info[i]);
+	}
+	if (ctl->procname == NULL || arlan_drive_info == NULL)
+	{
+		printk(KERN_WARNING " procname is NULL in sysctl_table or arlan_drive_info is NULL \n at arlan module\n ");
+		return -1;
+	}
+	devnum = ctl->procname[5] - '0';
+	if (devnum < 0 || devnum > MAX_ARLANS - 1)
+	{
+		printk(KERN_WARNING "too strange devnum in procfs parse\n ");
+		return -1;
+	}
+	else if (arlan_device[devnum] == NULL)
+	{
+		if (ctl->procname)
+			pos += sprintf(arlan_drive_info + pos, "\t%s\n\n", ctl->procname);
+		pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+		goto final;
+	}
+	else
+		priva = netdev_priv(arlan_device[devnum]);
+
+	if (priva == NULL)
+	{
+		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		return -1;
+	}
+	dev = arlan_device[devnum];
+
+	memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+
+	pos = sprintf(arlan_drive_info, "Arlan  info \n");
+	/* Header Signature */
+	SARLSTR(textRegion, 48);
+	SARLUC(resetFlag);
+	pos += sprintf(arlan_drive_info + pos, "diagnosticInfo\t=\t%s \n", arlan_diagnostic_info_string(dev));
+	SARLUC(diagnosticInfo);
+	SARLUS(diagnosticOffset);
+	SARLUCN(_1, 12);
+	SARLUCN(lanCardNodeId, 6);
+	SARLUCN(broadcastAddress, 6);
+	pos += sprintf(arlan_drive_info + pos, "hardwareType =\t  %s \n", arlan_hardware_type_string(dev));
+	SARLUC(hardwareType);
+	SARLUC(majorHardwareVersion);
+	SARLUC(minorHardwareVersion);
+	SARLUC(radioModule);
+	SARLUC(defaultChannelSet);
+	SARLUCN(_2, 47);
+
+	/* Control/Status Block - 0x0080 */
+	SARLUC(interruptInProgress);
+	SARLUC(cntrlRegImage);
+
+	SARLUCN(_3, 14);
+	SARLUC(commandByte);
+	SARLUCN(commandParameter, 15);
+
+	/* Receive Status - 0x00a0 */
+	SARLUC(rxStatus);
+	SARLUC(rxFrmType);
+	SARLUS(rxOffset);
+	SARLUS(rxLength);
+	SARLUCN(rxSrc, 6);
+	SARLUC(rxBroadcastFlag);
+	SARLUC(rxQuality);
+	SARLUC(scrambled);
+	SARLUCN(_4, 1);
+
+	/* Transmit Status - 0x00b0 */
+	SARLUC(txStatus);
+	SARLUC(txAckQuality);
+	SARLUC(numRetries);
+	SARLUCN(_5, 14);
+	SARLUCN(registeredRouter, 6);
+	SARLUCN(backboneRouter, 6);
+	SARLUC(registrationStatus);
+	SARLUC(configuredStatusFlag);
+	SARLUCN(_6, 1);
+	SARLUCN(ultimateDestAddress, 6);
+	SARLUCN(immedDestAddress, 6);
+	SARLUCN(immedSrcAddress, 6);
+	SARLUS(rxSequenceNumber);
+	SARLUC(assignedLocaltalkAddress);
+	SARLUCN(_7, 27);
+
+	/* System Parameter Block */
+
+	/* - Driver Parameters (Novell Specific) */
+
+	SARLUS(txTimeout);
+	SARLUS(transportTime);
+	SARLUCN(_8, 4);
+
+	/* - Configuration Parameters */
+	SARLUC(irqLevel);
+	SARLUC(spreadingCode);
+	SARLUC(channelSet);
+	SARLUC(channelNumber);
+	SARLUS(radioNodeId);
+	SARLUCN(_9, 2);
+	SARLUC(scramblingDisable);
+	SARLUC(radioType);
+	SARLUS(routerId);
+	SARLUCN(_10, 9);
+	SARLUC(txAttenuation);
+	SARLUIA(systemId);
+	SARLUS(globalChecksum);
+	SARLUCN(_11, 4);
+	SARLUS(maxDatagramSize);
+	SARLUS(maxFrameSize);
+	SARLUC(maxRetries);
+	SARLUC(receiveMode);
+	SARLUC(priority);
+	SARLUC(rootOrRepeater);
+	SARLUCN(specifiedRouter, 6);
+	SARLUS(fastPollPeriod);
+	SARLUC(pollDecay);
+	SARLUSA(fastPollDelay);
+	SARLUC(arlThreshold);
+	SARLUC(arlDecay);
+	SARLUCN(_12, 1);
+	SARLUS(specRouterTimeout);
+	SARLUCN(_13, 5);
+
+	/* Scrambled Area */
+	SARLUIA(SID);
+	SARLUCN(encryptionKey, 12);
+	SARLUIA(_14);
+	SARLUSA(waitTime);
+	SARLUSA(lParameter);
+	SARLUCN(_15, 3);
+	SARLUS(headerSize);
+	SARLUS(sectionChecksum);
+
+	SARLUC(registrationMode);
+	SARLUC(registrationFill);
+	SARLUS(pollPeriod);
+	SARLUS(refreshPeriod);
+	SARLSTR(name, 16);
+	SARLUCN(NID, 6);
+	SARLUC(localTalkAddress);
+	SARLUC(codeFormat);
+	SARLUC(numChannels);
+	SARLUC(channel1);
+	SARLUC(channel2);
+	SARLUC(channel3);
+	SARLUC(channel4);
+	SARLUCN(SSCode, 59);
+
+/*      SARLUCN( _16, 0x140);
+ */
+	/* Statistics Block - 0x0300 */
+	SARLUC(hostcpuLock);
+	SARLUC(lancpuLock);
+	SARLUCN(resetTime, 18);
+	SARLUIA(numDatagramsTransmitted);
+	SARLUIA(numReTransmissions);
+	SARLUIA(numFramesDiscarded);
+	SARLUIA(numDatagramsReceived);
+	SARLUIA(numDuplicateReceivedFrames);
+	SARLUIA(numDatagramsDiscarded);
+	SARLUS(maxNumReTransmitDatagram);
+	SARLUS(maxNumReTransmitFrames);
+	SARLUS(maxNumConsecutiveDuplicateFrames);
+	/* misaligned here so we have to go to characters */
+	SARLUIA(numBytesTransmitted);
+	SARLUIA(numBytesReceived);
+	SARLUIA(numCRCErrors);
+	SARLUIA(numLengthErrors);
+	SARLUIA(numAbortErrors);
+	SARLUIA(numTXUnderruns);
+	SARLUIA(numRXOverruns);
+	SARLUIA(numHoldOffs);
+	SARLUIA(numFramesTransmitted);
+	SARLUIA(numFramesReceived);
+	SARLUIA(numReceiveFramesLost);
+	SARLUIA(numRXBufferOverflows);
+	SARLUIA(numFramesDiscardedAddrMismatch);
+	SARLUIA(numFramesDiscardedSIDMismatch);
+	SARLUIA(numPollsTransmistted);
+	SARLUIA(numPollAcknowledges);
+	SARLUIA(numStatusTimeouts);
+	SARLUIA(numNACKReceived);
+	SARLUS(auxCmd);
+	SARLUCN(dumpPtr, 4);
+	SARLUC(dumpVal);
+	SARLUC(wireTest);
+	
+	/* next 4 seems too long for procfs, over single page ?
+	SARLUCN( _17, 0x86);
+	SARLUCN( txBuffer, 0x800);
+	SARLUCN( rxBuffer,  0x800); 
+	SARLUCN( _18, 0x0bff);
+	 */
+
+	pos += sprintf(arlan_drive_info + pos, "rxRing\t=\t0x");
+	for (i = 0; i < 0x50; i++)
+		pos += sprintf(arlan_drive_info + pos, "%02x", ((char *) priva->conf)[priva->conf->rxOffset + i]);
+	pos += sprintf(arlan_drive_info + pos, "\n");
+
+	SARLUC(configStatus);
+	SARLUC(_22);
+	SARLUC(progIOCtrl);
+	SARLUC(shareMBase);
+	SARLUC(controlRegister);
+
+	pos += sprintf(arlan_drive_info + pos, " total %d chars\n", pos);
+	if (ctl)
+		if (ctl->procname)
+			pos += sprintf(arlan_drive_info + pos, " driver name : %s\n", ctl->procname);
+final:
+	*lenp = pos;
+
+	if (!write)
+		retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+	else
+	{
+		*lenp = 0;
+		return -1;
+	}
+	return retv;
+}
+
+
+static int arlan_sysctl_info161719(ctl_table * ctl, int write,
+			    void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+	int i;
+	int retv, pos, devnum;
+	struct arlan_private *priva = NULL;
+
+	pos = 0;
+	devnum = ctl->procname[5] - '0';
+	if (arlan_device[devnum] == NULL)
+	{
+		pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+		goto final;
+	}
+	else
+		priva = netdev_priv(arlan_device[devnum]);
+	if (priva == NULL)
+	{
+		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		return -1;
+	}
+	memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+	SARLUCN(_16, 0xC0);
+	SARLUCN(_17, 0x6A);
+	SARLUCN(_18, 14);
+	SARLUCN(_19, 0x86);
+	SARLUCN(_21, 0x3fd);
+
+final:
+	*lenp = pos;
+	retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+	return retv;
+}
+
+static int arlan_sysctl_infotxRing(ctl_table * ctl, int write,
+			    void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+	int i;
+	int retv, pos, devnum;
+	struct arlan_private *priva = NULL;
+
+	pos = 0;
+	devnum = ctl->procname[5] - '0';
+	if (arlan_device[devnum] == NULL)
+	{
+		  pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+		  goto final;
+	}
+	else
+		priva = netdev_priv(arlan_device[devnum]);
+	if (priva == NULL)
+	{
+		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		return -1;
+	}
+	memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+	SARLBNpln(u_char, txBuffer, 0x800);
+final:
+	*lenp = pos;
+	retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+	return retv;
+}
+
+static int arlan_sysctl_inforxRing(ctl_table * ctl, int write,
+			    void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+	int i;
+	int retv, pos, devnum;
+	struct arlan_private *priva = NULL;
+
+	pos = 0;
+	devnum = ctl->procname[5] - '0';
+	if (arlan_device[devnum] == NULL)
+	{
+		  pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+		  goto final;
+	} else
+		priva = netdev_priv(arlan_device[devnum]);
+	if (priva == NULL)
+	{
+		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		return -1;
+	}
+	memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+	SARLBNpln(u_char, rxBuffer, 0x800);
+final:
+	*lenp = pos;
+	retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+	return retv;
+}
+
+static int arlan_sysctl_info18(ctl_table * ctl, int write,
+			void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+	int i;
+	int retv, pos, devnum;
+	struct arlan_private *priva = NULL;
+
+	pos = 0;
+	devnum = ctl->procname[5] - '0';
+	if (arlan_device[devnum] == NULL)
+	{
+		pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+		goto final;
+	}
+	else
+		priva = netdev_priv(arlan_device[devnum]);
+	if (priva == NULL)
+	{
+		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		return -1;
+	}
+	memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+	SARLBNpln(u_char, _18, 0x800);
+
+final:
+	*lenp = pos;
+	retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+	return retv;
+}
+
+
+#endif				/* #ifdef ARLAN_PROC_SHM_DUMP */
+
+
+static char conf_reset_result[200];
+
+static int arlan_configure(ctl_table * ctl, int write,
+		    void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+	int pos = 0;
+	int devnum = ctl->procname[6] - '0';
+	struct arlan_private *priv;
+
+	if (devnum < 0 || devnum > MAX_ARLANS - 1)
+	{
+		  printk(KERN_WARNING "too strange devnum in procfs parse\n ");
+		  return -1;
+	}
+	else if (arlan_device[devnum] != NULL)
+	{
+		  priv = netdev_priv(arlan_device[devnum]);
+
+		  arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_CONF);
+	}
+	else
+		return -1;
+
+	*lenp = pos;
+	return proc_dostring(ctl, write, buffer, lenp, ppos);
+}
+
+static int arlan_sysctl_reset(ctl_table * ctl, int write,
+		       void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+	int pos = 0;
+	int devnum = ctl->procname[5] - '0';
+	struct arlan_private *priv;
+
+	if (devnum < 0 || devnum > MAX_ARLANS - 1)
+	{
+		  printk(KERN_WARNING "too strange devnum in procfs parse\n ");
+		  return -1;
+	}
+	else if (arlan_device[devnum] != NULL)
+	{
+		priv = netdev_priv(arlan_device[devnum]);
+		arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_RESET);
+
+	} else
+		return -1;
+	*lenp = pos + 3;
+	return proc_dostring(ctl, write, buffer, lenp, ppos);
+}
+
+
+/* Place files in /proc/sys/dev/arlan */
+#define CTBLN(num,card,nam) \
+        { .ctl_name = num,\
+          .procname = #nam,\
+          .data = &(arlan_conf[card].nam),\
+          .maxlen = sizeof(int), .mode = 0600, .proc_handler = &proc_dointvec}
+#ifdef ARLAN_DEBUGGING
+
+#define ARLAN_PROC_DEBUG_ENTRIES \
+        { .ctl_name = 48, .procname = "entry_exit_debug",\
+          .data = &arlan_entry_and_exit_debug,\
+          .maxlen = sizeof(int), .mode = 0600, .proc_handler = &proc_dointvec},\
+	{ .ctl_name = 49, .procname = "debug", .data = &arlan_debug,\
+          .maxlen = sizeof(int), .mode = 0600, .proc_handler = &proc_dointvec},
+#else 
+#define ARLAN_PROC_DEBUG_ENTRIES
+#endif
+
+#define ARLAN_SYSCTL_TABLE_TOTAL(cardNo)\
+	CTBLN(1,cardNo,spreadingCode),\
+	CTBLN(2,cardNo, channelNumber),\
+	CTBLN(3,cardNo, scramblingDisable),\
+	CTBLN(4,cardNo, txAttenuation),\
+	CTBLN(5,cardNo, systemId), \
+	CTBLN(6,cardNo, maxDatagramSize),\
+	CTBLN(7,cardNo, maxFrameSize),\
+	CTBLN(8,cardNo, maxRetries),\
+	CTBLN(9,cardNo, receiveMode),\
+	CTBLN(10,cardNo, priority),\
+	CTBLN(11,cardNo, rootOrRepeater),\
+	CTBLN(12,cardNo, SID),\
+	CTBLN(13,cardNo, registrationMode),\
+	CTBLN(14,cardNo, registrationFill),\
+	CTBLN(15,cardNo, localTalkAddress),\
+	CTBLN(16,cardNo, codeFormat),\
+	CTBLN(17,cardNo, numChannels),\
+	CTBLN(18,cardNo, channel1),\
+	CTBLN(19,cardNo, channel2),\
+	CTBLN(20,cardNo, channel3),\
+	CTBLN(21,cardNo, channel4),\
+	CTBLN(22,cardNo, txClear),\
+	CTBLN(23,cardNo, txRetries),\
+	CTBLN(24,cardNo, txRouting),\
+	CTBLN(25,cardNo, txScrambled),\
+	CTBLN(26,cardNo, rxParameter),\
+	CTBLN(27,cardNo, txTimeoutMs),\
+	CTBLN(28,cardNo, waitCardTimeout),\
+	CTBLN(29,cardNo, channelSet), \
+	{.ctl_name = 30, .procname = "name",\
+	 .data = arlan_conf[cardNo].siteName,\
+	 .maxlen = 16, .mode = 0600, .proc_handler = &proc_dostring},\
+	CTBLN(31,cardNo,waitTime),\
+	CTBLN(32,cardNo,lParameter),\
+	CTBLN(33,cardNo,_15),\
+	CTBLN(34,cardNo,headerSize),\
+	CTBLN(36,cardNo,tx_delay_ms),\
+	CTBLN(37,cardNo,retries),\
+	CTBLN(38,cardNo,ReTransmitPacketMaxSize),\
+	CTBLN(39,cardNo,waitReTransmitPacketMaxSize),\
+	CTBLN(40,cardNo,fastReTransCount),\
+	CTBLN(41,cardNo,driverRetransmissions),\
+	CTBLN(42,cardNo,txAckTimeoutMs),\
+	CTBLN(43,cardNo,registrationInterrupts),\
+	CTBLN(44,cardNo,hardwareType),\
+	CTBLN(45,cardNo,radioType),\
+	CTBLN(46,cardNo,writeEEPROM),\
+	CTBLN(47,cardNo,writeRadioType),\
+	ARLAN_PROC_DEBUG_ENTRIES\
+	CTBLN(50,cardNo,in_speed),\
+	CTBLN(51,cardNo,out_speed),\
+	CTBLN(52,cardNo,in_speed10),\
+	CTBLN(53,cardNo,out_speed10),\
+	CTBLN(54,cardNo,in_speed_max),\
+	CTBLN(55,cardNo,out_speed_max),\
+	CTBLN(56,cardNo,measure_rate),\
+	CTBLN(57,cardNo,pre_Command_Wait),\
+	CTBLN(58,cardNo,rx_tweak1),\
+	CTBLN(59,cardNo,rx_tweak2),\
+	CTBLN(60,cardNo,tx_queue_len),\
+
+
+
+static ctl_table arlan_conf_table0[] =
+{
+	ARLAN_SYSCTL_TABLE_TOTAL(0)
+
+#ifdef ARLAN_PROC_SHM_DUMP
+	{
+		.ctl_name	= 150,
+		.procname	= "arlan0-txRing",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_infotxRing,
+	},
+	{
+		.ctl_name	= 151,
+		.procname	= "arlan0-rxRing",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_inforxRing,
+	},
+	{
+		.ctl_name	= 152,
+		.procname	= "arlan0-18",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info18,
+	},
+	{
+		.ctl_name	= 153,
+		.procname	= "arlan0-ring",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info161719,
+	},
+	{
+		.ctl_name	= 154,
+		.procname	= "arlan0-shm-cpy",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info,
+	},
+#endif
+	{
+		.ctl_name	= 155,
+		.procname	= "config0",
+		.data		= &conf_reset_result,
+		.maxlen		= 100,
+		.mode		= 0400,
+		.proc_handler	= &arlan_configure
+	},
+	{
+		.ctl_name	= 156,
+		.procname	= "reset0",
+		.data		= &conf_reset_result,
+		.maxlen		= 100,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_reset,
+	},
+	{ .ctl_name = 0 }
+};
+
+static ctl_table arlan_conf_table1[] =
+{
+
+	ARLAN_SYSCTL_TABLE_TOTAL(1)
+
+#ifdef ARLAN_PROC_SHM_DUMP
+	{
+		.ctl_name	= 150,
+		.procname	= "arlan1-txRing",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_infotxRing,
+	},
+	{
+		.ctl_name	= 151,
+		.procname	= "arlan1-rxRing",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_inforxRing,
+	},
+	{
+		.ctl_name	= 152,
+		.procname	= "arlan1-18",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info18,
+	},
+	{
+		.ctl_name	= 153,
+		.procname	= "arlan1-ring",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info161719,
+	},
+	{
+		.ctl_name	= 154,
+		.procname	= "arlan1-shm-cpy",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info,
+	},
+#endif
+	{
+		.ctl_name	= 155,
+		.procname	= "config1",
+		.data		= &conf_reset_result,
+		.maxlen		= 100,
+		.mode		= 0400,
+		.proc_handler	= &arlan_configure,
+	},
+	{
+		.ctl_name	= 156,
+		.procname	= "reset1",
+		.data		= &conf_reset_result,
+		.maxlen		= 100,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_reset,
+	},
+	{ .ctl_name = 0 }
+};
+
+static ctl_table arlan_conf_table2[] =
+{
+
+	ARLAN_SYSCTL_TABLE_TOTAL(2)
+
+#ifdef ARLAN_PROC_SHM_DUMP
+	{
+		.ctl_name	= 150,
+		.procname	= "arlan2-txRing",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_infotxRing,
+	},
+	{
+		.ctl_name	= 151,
+		.procname	= "arlan2-rxRing",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_inforxRing,
+	},
+	{
+		.ctl_name	= 152,
+		.procname	= "arlan2-18",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info18,
+	},
+	{
+		.ctl_name	= 153,
+		.procname	= "arlan2-ring",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info161719,
+	},
+	{
+		.ctl_name	= 154,
+		.procname	= "arlan2-shm-cpy",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info,
+	},
+#endif
+	{
+		.ctl_name	= 155,
+		.procname	= "config2",
+		.data		= &conf_reset_result,
+		.maxlen		= 100,
+		.mode		= 0400,
+		.proc_handler	= &arlan_configure,
+	},
+	{
+		.ctl_name	= 156,
+		.procname	= "reset2",
+		.data		= &conf_reset_result,
+		.maxlen		= 100,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_reset,
+	},
+	{ .ctl_name = 0 }
+};
+
+static ctl_table arlan_conf_table3[] =
+{
+
+	ARLAN_SYSCTL_TABLE_TOTAL(3)
+
+#ifdef ARLAN_PROC_SHM_DUMP
+	{
+		.ctl_name	= 150,
+		.procname	= "arlan3-txRing",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_infotxRing,
+	},
+	{
+		.ctl_name	= 151,
+		.procname	= "arlan3-rxRing",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_inforxRing,
+	},
+	{
+		.ctl_name	= 152,
+		.procname	= "arlan3-18",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info18,
+	},
+	{
+		.ctl_name	= 153,
+		.procname	= "arlan3-ring",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info161719,
+	},
+	{
+		.ctl_name	= 154,
+		.procname	= "arlan3-shm-cpy",
+		.data		= &arlan_drive_info,
+		.maxlen		= ARLAN_STR_SIZE,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_info,
+	},
+#endif
+	{
+		.ctl_name	= 155,
+		.procname	= "config3",
+		.data		= &conf_reset_result,
+		.maxlen		= 100,
+		.mode		= 0400,
+		.proc_handler	= &arlan_configure,
+	},
+	{
+		.ctl_name	= 156,
+		.procname	= "reset3",
+		.data		= &conf_reset_result,
+		.maxlen		= 100,
+		.mode		= 0400,
+		.proc_handler	= &arlan_sysctl_reset,
+	},
+	{ .ctl_name = 0 }
+};
+
+
+
+static ctl_table arlan_table[] =
+{
+	{
+		.ctl_name	= 0,
+		.procname	= "arlan0",
+		.maxlen		= 0,
+		.mode		= 0600,
+		.child		= arlan_conf_table0,
+	},
+	{
+		.ctl_name	= 0,
+		.procname	= "arlan1",
+		.maxlen		= 0,
+		.mode		= 0600,
+		.child		= arlan_conf_table1,
+	},
+	{
+		.ctl_name	= 0,
+		.procname	= "arlan2",
+		.maxlen		= 0,
+		.mode		= 0600,
+		.child		= arlan_conf_table2,
+	},
+	{
+		.ctl_name	= 0,
+		.procname	= "arlan3",
+		.maxlen		= 0,
+		.mode		= 0600,
+		.child		= arlan_conf_table3,
+	},
+	{ .ctl_name = 0 }
+};
+
+#else
+
+static ctl_table arlan_table[MAX_ARLANS + 1] =
+{
+	{ .ctl_name = 0 }
+};
+#endif
+
+
+// static int mmtu = 1234;
+
+static ctl_table arlan_root_table[] =
+{
+	{
+		.ctl_name	= CTL_ARLAN,
+		.procname	= "arlan",
+		.maxlen		= 0,
+		.mode		= 0555,
+		.child		= arlan_table,
+	},
+	{ .ctl_name = 0 }
+};
+
+/* Make sure that /proc/sys/dev is there */
+//static ctl_table arlan_device_root_table[] =
+//{
+//	{CTL_DEV, "dev", NULL, 0, 0555, arlan_root_table},
+//	{0}
+//};
+
+
+static struct ctl_table_header *arlan_device_sysctl_header;
+
+int __init init_arlan_proc(void)
+{
+
+	int i = 0;
+	if (arlan_device_sysctl_header)
+		return 0;
+	for (i = 0; i < MAX_ARLANS && arlan_device[i]; i++)
+		arlan_table[i].ctl_name = i + 1;
+	arlan_device_sysctl_header = register_sysctl_table(arlan_root_table);
+	if (!arlan_device_sysctl_header)
+		return -1;
+
+	return 0;
+
+}
+
+void __exit cleanup_arlan_proc(void)
+{
+	unregister_sysctl_table(arlan_device_sysctl_header);
+	arlan_device_sysctl_header = NULL;
+
+}
+#endif
diff --git a/drivers/staging/arlan/arlan.h b/drivers/staging/arlan/arlan.h
new file mode 100644
index 000000000000..fb3ad51a1caf
--- /dev/null
+++ b/drivers/staging/arlan/arlan.h
@@ -0,0 +1,539 @@
+/*
+ *  Copyright (C) 1997 Cullen Jennings
+ *  Copyright (C) 1998 Elmer.Joandi@ut.ee, +37-255-13500	
+ *  GNU General Public License applies
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <linux/if_ether.h>	/* For the statistics structure. */
+#include <linux/if_arp.h>	/* For ARPHRD_ETHER */
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+
+
+//#define ARLAN_DEBUGGING 1
+
+#define ARLAN_PROC_INTERFACE
+#define MAX_ARLANS 4 /* not more than 4 ! */
+#define ARLAN_PROC_SHM_DUMP /* shows all card registers, makes driver way larger */
+
+#define ARLAN_MAX_MULTICAST_ADDRS 16
+#define ARLAN_RCV_CLEAN 	0
+#define ARLAN_RCV_PROMISC 1
+#define ARLAN_RCV_CONTROL 2
+
+#ifdef CONFIG_PROC_FS
+extern int init_arlan_proc(void);
+extern void cleanup_arlan_proc(void);
+#else
+#define init_arlan_proc()	({ 0; })
+#define cleanup_arlan_proc()	do { } while (0)
+#endif
+
+extern struct net_device *arlan_device[MAX_ARLANS];
+extern int	arlan_debug;
+extern int	arlan_entry_debug;
+extern int	arlan_exit_debug;
+extern int	testMemory;
+extern int     arlan_command(struct net_device * dev, int command);
+ 
+#define SIDUNKNOWN -1
+#define radioNodeIdUNKNOWN -1
+#define irqUNKNOWN 0
+#define debugUNKNOWN 0
+#define testMemoryUNKNOWN 1
+#define spreadingCodeUNKNOWN 0
+#define channelNumberUNKNOWN 0
+#define channelSetUNKNOWN 0
+#define systemIdUNKNOWN -1
+#define registrationModeUNKNOWN -1
+
+
+#define IFDEBUG( L ) if ( (L) & arlan_debug ) 
+#define ARLAN_FAKE_HDR_LEN 12 
+
+#ifdef ARLAN_DEBUGGING
+	#define DEBUG 1
+	#define ARLAN_ENTRY_EXIT_DEBUGGING 1
+	#define ARLAN_DEBUG(a,b) printk(KERN_DEBUG a, b)
+#else
+	#define ARLAN_DEBUG(a,b) 
+#endif
+
+#define ARLAN_SHMEM_SIZE	0x2000
+
+struct arlan_shmem
+{
+      /* Header Signature */ 
+      volatile	char textRegion[48];
+      volatile	u_char resetFlag;
+      volatile	u_char  diagnosticInfo;
+      volatile	u_short diagnosticOffset;
+      volatile	u_char _1[12];
+      volatile	u_char lanCardNodeId[6];
+      volatile	u_char broadcastAddress[6];
+      volatile	u_char hardwareType;
+      volatile	u_char majorHardwareVersion;
+      volatile	u_char minorHardwareVersion;
+      volatile	u_char radioModule;// shows EEPROM, can be overridden at 0x111
+      volatile	u_char defaultChannelSet; // shows EEProm, can be overriiden at 0x10A
+      volatile	u_char _2[47];
+      
+      /* Control/Status Block - 0x0080 */
+      volatile	u_char interruptInProgress; /* not used by lancpu */
+      volatile	u_char cntrlRegImage; /* not used by lancpu */
+      volatile	u_char _3[13];
+      volatile	u_char dumpByte;
+      volatile	u_char commandByte; /* non-zero = active */
+      volatile	u_char commandParameter[15];
+
+      /* Receive Status - 0x00a0 */
+      volatile	u_char rxStatus; /* 1- data, 2-control, 0xff - registr change */
+      volatile	u_char rxFrmType;
+      volatile	u_short rxOffset;
+      volatile	u_short rxLength;
+      volatile	u_char rxSrc[6];
+      volatile	u_char rxBroadcastFlag;
+      volatile	u_char rxQuality;
+      volatile	u_char scrambled;
+      volatile	u_char _4[1];
+      
+      /* Transmit Status - 0x00b0 */
+      volatile	u_char txStatus;
+      volatile	u_char txAckQuality;
+      volatile	u_char numRetries;
+      volatile	u_char _5[14];
+      volatile	u_char registeredRouter[6];
+      volatile	u_char backboneRouter[6];
+      volatile	u_char registrationStatus;
+      volatile	u_char configuredStatusFlag;
+      volatile	u_char _6[1];
+      volatile	u_char ultimateDestAddress[6];
+      volatile	u_char immedDestAddress[6];
+      volatile	u_char immedSrcAddress[6];
+      volatile	u_short rxSequenceNumber;
+      volatile	u_char assignedLocaltalkAddress;
+      volatile	u_char _7[27];
+
+      /* System Parameter Block */
+
+      /* - Driver Parameters (Novell Specific) */
+
+      volatile	u_short txTimeout;
+      volatile	u_short transportTime;
+      volatile	u_char _8[4];
+
+      /* - Configuration Parameters */
+      volatile	u_char irqLevel;
+      volatile	u_char spreadingCode;
+      volatile	u_char channelSet;
+      volatile	u_char channelNumber;
+      volatile	u_short radioNodeId;
+      volatile	u_char _9[2];
+      volatile	u_char scramblingDisable;
+      volatile	u_char radioType;
+      volatile	u_short routerId;
+      volatile	u_char _10[9];
+      volatile	u_char txAttenuation;
+      volatile	u_char systemId[4]; 
+      volatile	u_short globalChecksum;
+      volatile	u_char _11[4];
+      volatile	u_short maxDatagramSize;
+      volatile	u_short maxFrameSize;
+      volatile	u_char maxRetries;
+      volatile	u_char receiveMode;
+      volatile	u_char priority;
+      volatile	u_char rootOrRepeater;
+      volatile	u_char specifiedRouter[6];
+      volatile	u_short fastPollPeriod;
+      volatile	u_char pollDecay;
+      volatile	u_char fastPollDelay[2];
+      volatile	u_char arlThreshold;
+      volatile	u_char arlDecay;
+      volatile	u_char _12[1];
+      volatile	u_short specRouterTimeout;
+      volatile	u_char _13[5];
+
+      /* Scrambled Area */
+      volatile	u_char SID[4];
+      volatile	u_char encryptionKey[12];
+      volatile	u_char _14[2];
+      volatile	u_char waitTime[2];
+      volatile	u_char lParameter[2];
+      volatile	u_char _15[3];
+      volatile	u_short headerSize;
+      volatile	u_short sectionChecksum;
+
+      volatile	u_char registrationMode;
+      volatile	u_char registrationFill;
+      volatile	u_short pollPeriod;
+      volatile	u_short refreshPeriod;
+      volatile	u_char name[16];
+      volatile	u_char NID[6];
+      volatile	u_char localTalkAddress;
+      volatile	u_char codeFormat;
+      volatile	u_char numChannels;
+      volatile	u_char channel1;
+      volatile	u_char channel2;
+      volatile	u_char channel3;
+      volatile	u_char channel4;
+      volatile	u_char SSCode[59];
+
+      volatile	u_char _16[0xC0];
+      volatile	u_short auxCmd;
+      volatile	u_char  dumpPtr[4];
+      volatile	u_char dumpVal;
+      volatile	u_char _17[0x6A];
+      volatile	u_char wireTest;
+      volatile	u_char _18[14];
+
+      /* Statistics Block - 0x0300 */
+      volatile	u_char hostcpuLock;
+      volatile	u_char lancpuLock;
+      volatile	u_char resetTime[18];
+      
+      volatile	u_char numDatagramsTransmitted[4];
+      volatile	u_char numReTransmissions[4];
+      volatile	u_char numFramesDiscarded[4];
+      volatile	u_char numDatagramsReceived[4];
+      volatile	u_char numDuplicateReceivedFrames[4];
+      volatile	u_char numDatagramsDiscarded[4];
+      
+      volatile	u_short maxNumReTransmitDatagram;
+      volatile	u_short maxNumReTransmitFrames;
+      volatile	u_short maxNumConsecutiveDuplicateFrames;
+      /* misaligned here so we have to go to characters */
+     
+      volatile	u_char numBytesTransmitted[4];
+      volatile	u_char numBytesReceived[4];
+      volatile	u_char numCRCErrors[4];
+      volatile	u_char numLengthErrors[4];
+      volatile	u_char numAbortErrors[4];
+      volatile	u_char numTXUnderruns[4];
+      volatile	u_char numRXOverruns[4];
+      volatile	u_char numHoldOffs[4];
+      volatile	u_char numFramesTransmitted[4];
+      volatile	u_char numFramesReceived[4];
+      volatile	u_char numReceiveFramesLost[4];
+      volatile	u_char numRXBufferOverflows[4];
+      volatile	u_char numFramesDiscardedAddrMismatch[4];
+      volatile	u_char numFramesDiscardedSIDMismatch[4];
+      volatile	u_char numPollsTransmistted[4];
+      volatile	u_char numPollAcknowledges[4];
+      volatile	u_char numStatusTimeouts[4];
+      volatile	u_char numNACKReceived[4];
+
+      volatile	u_char _19[0x86];
+
+      volatile	u_char txBuffer[0x800];
+      volatile	u_char rxBuffer[0x800];
+
+      volatile	u_char _20[0x800];
+      volatile	u_char _21[0x3fb];
+      volatile	u_char configStatus;
+      volatile	u_char _22;
+      volatile	u_char progIOCtrl;
+      volatile	u_char shareMBase;
+      volatile	u_char controlRegister;
+};
+
+struct arlan_conf_stru {
+      int spreadingCode;
+      int channelSet;
+      int channelNumber;
+      int scramblingDisable;
+      int txAttenuation;
+      int systemId; 
+      int maxDatagramSize;
+      int maxFrameSize;
+      int maxRetries;
+      int receiveMode;
+      int priority;
+      int rootOrRepeater;
+      int SID;
+      int radioNodeId;
+      int registrationMode;
+      int registrationFill;
+      int localTalkAddress;
+      int codeFormat;
+      int numChannels;
+      int channel1;
+      int channel2;
+      int channel3;
+      int channel4;
+      int txClear;
+      int txRetries;
+      int txRouting;
+      int txScrambled;
+      int rxParameter;
+      int txTimeoutMs;
+      int txAckTimeoutMs;
+      int waitCardTimeout;
+      int	waitTime;
+      int	lParameter;
+      int	_15;
+      int	headerSize;
+      int retries;
+      int tx_delay_ms;
+      int waitReTransmitPacketMaxSize;
+      int ReTransmitPacketMaxSize;
+      int fastReTransCount;
+      int driverRetransmissions;
+      int registrationInterrupts;
+      int hardwareType;
+      int radioType;
+      int writeRadioType;
+      int writeEEPROM;
+      char siteName[17];
+      int measure_rate;
+      int in_speed;
+      int out_speed;
+      int in_speed10;
+      int out_speed10;
+      int in_speed_max;
+      int out_speed_max;
+      int pre_Command_Wait;
+      int rx_tweak1;
+      int rx_tweak2;
+      int tx_queue_len;
+};
+
+extern struct arlan_conf_stru arlan_conf[MAX_ARLANS];
+
+struct TxParam
+{
+      volatile	short 		offset;
+      volatile 	short 		length;
+      volatile	u_char 		dest[6];
+      volatile	unsigned	char clear;
+      volatile	unsigned	char retries;
+      volatile	unsigned	char routing;
+      volatile	unsigned	char scrambled;
+};
+
+#define TX_RING_SIZE 2
+/* Information that need to be kept for each board. */
+struct arlan_private {
+      struct arlan_shmem __iomem * card;
+      struct arlan_shmem * conf;
+
+      struct arlan_conf_stru * Conf;	     
+      int	bad;
+      int 	reset;
+      unsigned long lastReset;
+      struct timer_list timer;
+      struct timer_list tx_delay_timer;
+      struct timer_list tx_retry_timer;
+      struct timer_list rx_check_timer;
+
+      int registrationLostCount;
+      int reRegisterExp;
+      int irq_test_done;
+
+      struct TxParam txRing[TX_RING_SIZE];
+      char reTransmitBuff[0x800];
+      int txLast;
+      unsigned ReTransmitRequested;
+      unsigned long tx_done_delayed;
+      unsigned long registrationLastSeen;
+
+      unsigned long	tx_last_sent;
+      unsigned long	tx_last_cleared;
+      unsigned long	retransmissions;
+      unsigned long 	interrupt_ack_requested;
+      spinlock_t	lock;
+      unsigned long	waiting_command_mask;
+      unsigned long 	card_polling_interval;
+      unsigned long 	last_command_buff_free_time;
+
+      int 		under_reset;
+      int 		under_config;
+      int 		rx_command_given;
+      int	 	tx_command_given;
+      unsigned  long	interrupt_processing_active;
+      unsigned long	last_rx_int_ack_time;
+      unsigned long	in_bytes;
+      unsigned long 	out_bytes;
+      unsigned long	in_time;
+      unsigned long	out_time;
+      unsigned long	in_time10;
+      unsigned long	out_time10;
+      unsigned long	in_bytes10;
+      unsigned long 	out_bytes10;
+      int	init_etherdev_alloc;
+};
+
+
+
+#define ARLAN_CLEAR		0x00
+#define ARLAN_RESET 		0x01
+#define ARLAN_CHANNEL_ATTENTION 0x02
+#define ARLAN_INTERRUPT_ENABLE 	0x04
+#define ARLAN_CLEAR_INTERRUPT 	0x08
+#define ARLAN_POWER 		0x40
+#define ARLAN_ACCESS		0x80
+
+#define ARLAN_COM_CONF                0x01
+#define ARLAN_COM_RX_ENABLE           0x03
+#define ARLAN_COM_RX_ABORT            0x04
+#define ARLAN_COM_TX_ENABLE           0x05
+#define ARLAN_COM_TX_ABORT            0x06
+#define ARLAN_COM_NOP		      0x07
+#define ARLAN_COM_STANDBY             0x08
+#define ARLAN_COM_ACTIVATE            0x09
+#define ARLAN_COM_GOTO_SLOW_POLL      0x0a
+#define ARLAN_COM_INT                 0x80
+
+
+#define TXLAST(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[((struct arlan_private *)netdev_priv(dev))->txLast])
+#define TXHEAD(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[0])
+#define TXTAIL(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[1])
+
+#define TXBuffStart(dev) offsetof(struct arlan_shmem, txBuffer)
+#define TXBuffEnd(dev) offsetof(struct arlan_shmem, xxBuffer)
+ 
+#define READSHM(to,from,atype) {\
+	atype tmp;\
+	memcpy_fromio(&(tmp),&(from),sizeof(atype));\
+	to = tmp;\
+	}
+
+#define READSHMEM(from,atype)\
+	atype from; \
+	READSHM(from, arlan->from, atype);
+
+#define WRITESHM(to,from,atype) \
+	{ atype tmpSHM = from;\
+	memcpy_toio(&(to),&tmpSHM,sizeof(atype));\
+	}
+
+#define DEBUGSHM(levelSHM,stringSHM,stuff,atype) \
+	{	atype tmpSHM; \
+		memcpy_fromio(&tmpSHM,&(stuff),sizeof(atype));\
+		IFDEBUG(levelSHM) printk(stringSHM,tmpSHM);\
+	}
+
+#define WRITESHMB(to, val) \
+	writeb(val,&(to))
+#define READSHMB(to) \
+	readb(&(to))
+#define WRITESHMS(to, val) \
+	writew(val,&(to))
+#define READSHMS(to) \
+	readw(&(to))
+#define WRITESHMI(to, val) \
+	writel(val,&(to))
+#define READSHMI(to) \
+	readl(&(to))
+
+
+
+
+
+#define registrationBad(dev)\
+   ( (   READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationMode)    > 0) && \
+     (   READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationStatus) == 0)    )
+
+
+#define readControlRegister(dev)\
+ 	READSHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage)
+
+#define writeControlRegister(dev, v){\
+   WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage	,((v) &0xF) );\
+   WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->controlRegister	,(v) 	);}
+
+
+#define arlan_interrupt_lancpu(dev) {\
+   int cr;   \
+   \
+   cr = readControlRegister(dev);\
+   if (cr & ARLAN_CHANNEL_ATTENTION){ \
+      writeControlRegister(dev, (cr & ~ARLAN_CHANNEL_ATTENTION));\
+   }else  \
+      writeControlRegister(dev, (cr | ARLAN_CHANNEL_ATTENTION));\
+}
+
+#define clearChannelAttention(dev){ \
+   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CHANNEL_ATTENTION);}
+#define setHardwareReset(dev) {\
+   writeControlRegister(dev,readControlRegister(dev) | ARLAN_RESET);}
+#define clearHardwareReset(dev) {\
+   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_RESET);}
+#define setInterruptEnable(dev){\
+   writeControlRegister(dev,readControlRegister(dev) | ARLAN_INTERRUPT_ENABLE)  ;}
+#define clearInterruptEnable(dev){\
+   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_INTERRUPT_ENABLE)  ;}
+#define setClearInterrupt(dev){\
+   writeControlRegister(dev,readControlRegister(dev) | ARLAN_CLEAR_INTERRUPT)   ;}
+#define clearClearInterrupt(dev){\
+   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CLEAR_INTERRUPT);}
+#define setPowerOff(dev){\
+   writeControlRegister(dev,readControlRegister(dev) | (ARLAN_POWER && ARLAN_ACCESS));\
+   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
+#define setPowerOn(dev){\
+   writeControlRegister(dev,readControlRegister(dev) & ~(ARLAN_POWER));   }
+#define arlan_lock_card_access(dev){\
+   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
+#define arlan_unlock_card_access(dev){\
+   writeControlRegister(dev,readControlRegister(dev) | ARLAN_ACCESS ); }  
+
+
+
+
+#define ARLAN_COMMAND_RX		0x000001
+#define ARLAN_COMMAND_NOOP		0x000002
+#define ARLAN_COMMAND_NOOPINT		0x000004
+#define ARLAN_COMMAND_TX		0x000008
+#define ARLAN_COMMAND_CONF		0x000010
+#define ARLAN_COMMAND_RESET		0x000020
+#define ARLAN_COMMAND_TX_ABORT		0x000040
+#define ARLAN_COMMAND_RX_ABORT		0x000080
+#define ARLAN_COMMAND_POWERDOWN		0x000100
+#define ARLAN_COMMAND_POWERUP		0x000200
+#define ARLAN_COMMAND_SLOW_POLL 	0x000400
+#define ARLAN_COMMAND_ACTIVATE 		0x000800
+#define ARLAN_COMMAND_INT_ACK		0x001000
+#define ARLAN_COMMAND_INT_ENABLE	0x002000
+#define ARLAN_COMMAND_WAIT_NOW		0x004000
+#define ARLAN_COMMAND_LONG_WAIT_NOW	0x008000
+#define ARLAN_COMMAND_STANDBY		0x010000
+#define ARLAN_COMMAND_INT_RACK		0x020000
+#define ARLAN_COMMAND_INT_RENABLE	0x040000
+#define ARLAN_COMMAND_CONF_WAIT		0x080000
+#define ARLAN_COMMAND_TBUSY_CLEAR	0x100000
+#define ARLAN_COMMAND_CLEAN_AND_CONF	(ARLAN_COMMAND_TX_ABORT\
+					| ARLAN_COMMAND_RX_ABORT\
+					| ARLAN_COMMAND_CONF)
+#define ARLAN_COMMAND_CLEAN_AND_RESET   (ARLAN_COMMAND_TX_ABORT\
+					| ARLAN_COMMAND_RX_ABORT\
+					| ARLAN_COMMAND_RESET)
+
+
+ 
+#define ARLAN_DEBUG_CHAIN_LOCKS		0x00001
+#define ARLAN_DEBUG_RESET		0x00002
+#define ARLAN_DEBUG_TIMING		0x00004
+#define ARLAN_DEBUG_CARD_STATE		0x00008
+#define ARLAN_DEBUG_TX_CHAIN		0x00010
+#define ARLAN_DEBUG_MULTICAST		0x00020
+#define ARLAN_DEBUG_HEADER_DUMP		0x00040
+#define ARLAN_DEBUG_INTERRUPT		0x00080
+#define ARLAN_DEBUG_STARTUP		0x00100
+#define ARLAN_DEBUG_SHUTDOWN		0x00200
+
author	John W. Linville <linville@tuxdriver.com>	2009-10-20 13:53:08 +0900
committer	John W. Linville <linville@tuxdriver.com>	2009-10-30 16:50:33 -0400
commit	e38879efd336fb78b288dcebdc9ca030fd24f449 (patch)
tree	61e0caaf24485474e52085658e46909e822a7fc0 /drivers/staging/arlan
parent	955015bb0b42167d14f776ff5947ae2463a974dc (diff)
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