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/*
* 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 <linux/config.h>
#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];
int last_arlan;
static int SID = SIDUNKNOWN;
static int radioNodeId = radioNodeIdUNKNOWN;
static char encryptionKey[12] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'};
static char *siteName = siteNameUNKNOWN;
static int mem = memUNKNOWN;
int arlan_debug = debugUNKNOWN;
static int probe = probeUNKNOWN;
static int numDevices = numDevicesUNKNOWN;
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 async = 1;
static int tx_queue_len = 1;
static int arlan_EEPROM_bad;
#ifdef ARLAN_DEBUGGING
static int arlan_entry_debug;
static int arlan_exit_debug;
static int testMemory = testMemoryUNKNOWN;
static int irq = irqUNKNOWN;
static int txScrambled = 1;
static int mdebug;
#endif
#if LINUX_VERSION_CODE > 0x20100
MODULE_PARM(irq, "i");
MODULE_PARM(mem, "i");
MODULE_PARM(probe, "i");
MODULE_PARM(arlan_debug, "i");
MODULE_PARM(numDevices, "i");
MODULE_PARM(testMemory, "i");
MODULE_PARM(spreadingCode, "i");
MODULE_PARM(channelNumber, "i");
MODULE_PARM(channelSet, "i");
MODULE_PARM(systemId, "i");
MODULE_PARM(registrationMode, "i");
MODULE_PARM(radioNodeId, "i");
MODULE_PARM(SID, "i");
MODULE_PARM(txScrambled, "i");
MODULE_PARM(keyStart, "i");
MODULE_PARM(mdebug, "i");
MODULE_PARM(tx_delay_ms, "i");
MODULE_PARM(retries, "i");
MODULE_PARM(async, "i");
MODULE_PARM(tx_queue_len, "i");
MODULE_PARM(arlan_entry_debug, "i");
MODULE_PARM(arlan_exit_debug, "i");
MODULE_PARM(arlan_entry_and_exit_debug, "i");
MODULE_PARM(arlan_EEPROM_bad, "i");
MODULE_PARM_DESC(irq, "(unused)");
MODULE_PARM_DESC(mem, "Arlan memory address for single device probing");
MODULE_PARM_DESC(probe, "Arlan probe at initialization (0-1)");
MODULE_PARM_DESC(arlan_debug, "Arlan debug enable (0-1)");
MODULE_PARM_DESC(numDevices, "Number of Arlan devices; ignored if >1");
MODULE_PARM_DESC(testMemory, "(unused)");
MODULE_PARM_DESC(mdebug, "Arlan multicast debugging (0-1)");
MODULE_PARM_DESC(retries, "Arlan maximum packet retransmisions");
#ifdef ARLAN_ENTRY_EXIT_DEBUGGING
MODULE_PARM_DESC(arlan_entry_debug, "Arlan driver function entry debugging");
MODULE_PARM_DESC(arlan_exit_debug, "Arlan driver function exit debugging");
MODULE_PARM_DESC(arlan_entry_and_exit_debug, "Arlan driver function entry and exit debugging");
#else
MODULE_PARM_DESC(arlan_entry_debug, "(ignored)");
MODULE_PARM_DESC(arlan_exit_debug, "(ignored)");
MODULE_PARM_DESC(arlan_entry_and_exit_debug, "(ignored)");
#endif
EXPORT_SYMBOL(arlan_device);
EXPORT_SYMBOL(arlan_conf);
EXPORT_SYMBOL(last_arlan);
// #warning kernel 2.1.110 tested
#define myATOMIC_INIT(a,b) atomic_set(&(a),b)
#else
#define test_and_set_bit set_bit
#if LINUX_VERSION_CODE != 0x20024
// #warning kernel 2.0.36 tested
#endif
#define myATOMIC_INIT(a,b) a = b;
#endif
struct arlan_conf_stru arlan_conf[MAX_ARLANS];
static int arlans_found;
static int arlan_probe_here(struct net_device *dev, int ioaddr);
static int arlan_open(struct net_device *dev);
static int arlan_tx(struct sk_buff *skb, struct net_device *dev);
static void arlan_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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);
int arlan_command(struct net_device * dev, int command);
EXPORT_SYMBOL(arlan_command);
extern inline long long arlan_time(void)
{
struct timeval timev;
do_gettimeofday(&timev);
return ((long long) timev.tv_sec * 1000000 + timev.tv_usec);
};
#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);
#define ARLAN_COMMAND_LOCK(dev) \
if (atomic_dec_and_test(&((struct arlan_private * )dev->priv)->card_users))\
arlan_wait_command_complete_short(dev,__LINE__);
#define ARLAN_COMMAND_UNLOCK(dev) \
atomic_inc(&((struct arlan_private * )dev->priv)->card_users);
#define ARLAN_COMMAND_INC(dev) \
{((struct arlan_private *) dev->priv)->under_command++;}
#define ARLAN_COMMAND_ZERO(dev) \
{((struct arlan_private *) dev->priv)->under_command =0;}
#define ARLAN_UNDER_COMMAND(dev)\
(((struct arlan_private *) dev->priv)->under_command)
#define ARLAN_COMMAND_START(dev) ARLAN_COMMAND_INC(dev)
#define ARLAN_COMMAND_END(dev) ARLAN_COMMAND_ZERO(dev)
#define ARLAN_TOGGLE_START(dev)\
{((struct arlan_private *) dev->priv)->under_toggle++;}
#define ARLAN_TOGGLE_END(dev)\
{((struct arlan_private *) dev->priv)->under_toggle=0;}
#define ARLAN_UNDER_TOGGLE(dev)\
(((struct arlan_private *) dev->priv)->under_toggle)
extern inline int arlan_drop_tx(struct net_device *dev)
{
struct arlan_private *priv = ((struct arlan_private *) dev->priv);
priv->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->txOffset = 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)
{
volatile struct arlan_shmem *arlan = ((struct arlan_private *) dev->priv)->card;
struct arlan_conf_stru *conf = ((struct arlan_private *) dev->priv)->Conf;
struct arlan_private *priv = (struct arlan_private *) dev->priv;
int udelayed = 0;
int i = 0;
long long time_mks = arlan_time();
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 lock %lx commandByte %x waiting %x incoming %x \n",
jiffies, priv->command_lock, READSHMB(arlan->commandByte),
priv->waiting_command_mask, command_p);
priv->waiting_command_mask |= command_p;
if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
if (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 */
if (test_and_set_bit(0, (void *) &priv->command_lock))
{
if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
printk(KERN_DEBUG "arlan_command: entered when command locked \n");
goto command_busy_end;
}
/* 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->numResets++;
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((void *) 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->last_rx_time = arlan_time();
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_mks - priv->last_tx_time > conf->rx_tweak1) ||
(time_mks - priv->last_rx_int_ack_time < conf->rx_tweak2))
{
setInterruptEnable(dev);
memset_io((void *) arlan->commandParameter, 0, 0xf);
WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ENABLE | ARLAN_COM_INT);
memcpy_toio((void *) arlan->commandParameter, &TXLAST(dev), 14);
// for ( i=1 ; i < 15 ; i++) printk("%02x:",READSHMB(arlan->commandParameter[i]));
priv->last_command_was_rx = 0;
priv->tx_last_sent = jiffies;
arlan_interrupt_lancpu(dev);
priv->last_tx_time = arlan_time();
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 %x \n", priv->waiting_command_mask);
priv->command_lock = 0;
ARLAN_DEBUG_EXIT("arlan_command");
priv->last_command_buff_free_time = jiffies;
return 0;
card_busy_end:
if (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);
priv->command_lock = 0;
ARLAN_DEBUG_EXIT("arlan_command");
return 1;
bad_end:
printk(KERN_ERR "%s arlan_command bad end \n", dev->name);
priv->command_lock = 0;
ARLAN_DEBUG_EXIT("arlan_command");
return -1;
command_busy_end:
if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
printk(KERN_ERR "%s arlan_command command busy end \n", dev->name);
ARLAN_DEBUG_EXIT("arlan_command");
return 2;
};
extern inline void arlan_command_process(struct net_device *dev)
{
struct arlan_private *priv = ((struct arlan_private *) dev->priv);
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 wont repeat trying */ ;
if (priv->card_polling_interval > 1)
break;
times++;
}
}
extern inline void arlan_retransmit_now(struct net_device *dev)
{
struct arlan_private *priv = ((struct arlan_private *) dev->priv);
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");
priv->txOffset = 0;
netif_wake_queue (dev);
return;
}
arlan_command(dev, ARLAN_COMMAND_TX);
priv->nof_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 = (struct arlan_private *) dev->priv;
int lostTime = ((int) (jiffies - priv->registrationLastSeen)) * 1000 / HZ;
int bh_mark_needed = 0;
int next_tick = 1;
priv->timer_chain_active = 1;
if (registrationBad(dev))
{
//debug=100;
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 %d milliseconds\n", dev->name,
((int) (jiffies - priv->registrationLastSeen) * 1000) / HZ);
}
priv->registrationLastSeen = jiffies;
priv->registrationLostCount = 0;
priv->reRegisterExp = 1;
if (!netif_running(dev) )
netif_wake_queue(dev);
if (priv->tx_last_sent > priv->tx_last_cleared &&
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) &&
priv->tx_done_delayed < jiffies &&
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))
{
priv->txOffset = 0;
netif_wake_queue (dev);
}
priv->tx_done_delayed = 0;
bh_mark_needed = 1;
}
if (bh_mark_needed)
{
priv->txOffset = 0;
netif_wake_queue (dev);
}
arlan_process_interrupt(dev);
if (next_tick < priv->card_polling_interval)
next_tick = priv->card_polling_interval;
priv->timer_chain_active = 0;
priv->timer.expires = jiffies + next_tick;
add_timer(&priv->timer);
}
#ifdef ARLAN_DEBUGGING
static void arlan_print_registers(struct net_device *dev, int line)
{
volatile struct arlan_shmem *arlan = ((struct arlan_private *) dev->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 = (struct arlan_private *) dev->priv;
volatile struct arlan_shmem *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 - (((int) arlan->txBuffer) - ((int) arlan))) / 64) + 1) * 64;
if (TXTAIL(dev).offset)
tailStarts = 0x800 - (((TXTAIL(dev).offset - (((int) arlan->txBuffer) - ((int) arlan))) / 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 =
(((int) arlan->txBuffer) - ((int) arlan));
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 *) 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 =
(((int) arlan->txBuffer) - ((int) arlan)) + 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 *) arlan + TXTAIL(dev).offset), buf + ARLAN_FAKE_HDR_LEN, TXTAIL(dev).length);
}
else
{
netif_stop_queue (dev);
return -1;
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
printk(KERN_ERR "TX TAIL & HEAD full, return, tailStart %d headEnd %d\n", tailStarts, headEnds);
}
priv->out_bytes += length;
priv->out_bytes10 += length;
if (conf->measure_rate < 1)
conf->measure_rate = 1;
if (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 (jiffies - priv->out_time10 > conf->measure_rate * HZ * 10)
{
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->last_command_was_rx = 0;
priv->tx_last_sent = jiffies;
priv->nof_tx++;
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)
{
volatile struct arlan_shmem *arlan = ((struct arlan_private *) dev->priv)->card;
struct arlan_conf_stru *conf = ((struct arlan_private *) dev->priv)->Conf;
struct arlan_private *priv = (struct arlan_private *) dev->priv;
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;
volatile struct arlan_shmem *arlan = ((struct arlan_private *) dev->priv)->card;
struct arlan_conf_stru *conf = ((struct arlan_private *) dev->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->async = async;
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.
*/
static int __init arlan_check_fingerprint(int memaddr)
{
static char probeText[] = "TELESYSTEM SLW INC. ARLAN \0";
char tempBuf[49];
volatile struct arlan_shmem *arlan = (struct arlan_shmem *) memaddr;
ARLAN_DEBUG_ENTRY("arlan_check_fingerprint");
if (check_mem_region(virt_to_phys((void *)memaddr),0x2000 )){
// printk(KERN_WARNING "arlan: memory region %lx excluded from probing \n",virt_to_phys((void*)memaddr));
return -ENODEV;
};
memcpy_fromio(tempBuf, arlan->textRegion, 29);
tempBuf[30] = 0;
/* check for card at this address */
if (0 != strncmp(tempBuf, probeText, 29)){
// not release_mem_region(virt_to_phys((void*)memaddr),0x2000);
return -ENODEV;
}
// printk(KERN_INFO "arlan found at 0x%x \n",memaddr);
ARLAN_DEBUG_EXIT("arlan_check_fingerprint");
return 0;
}
static int __init arlan_probe_everywhere(struct net_device *dev)
{
int m;
int probed = 0;
int found = 0;
SET_MODULE_OWNER(dev);
ARLAN_DEBUG_ENTRY("arlan_probe_everywhere");
if (mem != 0 && numDevices == 1) /* Check a single specified location. */
{
if (arlan_probe_here(dev, (int) phys_to_virt( mem) ) == 0)
return 0;
else
return -ENODEV;
}
for (m = (int)phys_to_virt(lastFoundAt) + 0x2000; m <= (int)phys_to_virt(0xDE000); m += 0x2000)
{
if (arlan_probe_here(dev, m) == 0)
{
found++;
lastFoundAt = (int)virt_to_phys((void*)m);
break;
}
probed++;
}
if (found == 0 && probed != 0)
{
if (lastFoundAt == 0xbe000)
printk(KERN_ERR "arlan: No Arlan devices found \n");
return -ENODEV;
}
else
return 0;
ARLAN_DEBUG_EXIT("arlan_probe_everywhere");
return -ENODEV;
}
static int __init arlan_find_devices(void)
{
int m;
int found = 0;
ARLAN_DEBUG_ENTRY("arlan_find_devices");
if (mem != 0 && numDevices == 1) /* Check a single specified location. */
return 1;
for (m =(int) phys_to_virt(0xc0000); m <=(int) phys_to_virt(0xDE000); m += 0x2000)
{
if (arlan_check_fingerprint(m) == 0)
found++;
}
ARLAN_DEBUG_EXIT("arlan_find_devices");
return found;
}
static int arlan_change_mtu(struct net_device *dev, int new_mtu)
{
struct arlan_conf_stru *conf = ((struct arlan_private *) dev->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 int __init
arlan_allocate_device(int num, struct net_device *devs)
{
struct net_device *dev;
ARLAN_DEBUG_ENTRY("arlan_allocate_device");
if (!devs)
dev = init_etherdev(0, sizeof(struct arlan_private));
else
{
dev = devs;
dev->priv = kmalloc(sizeof(struct arlan_private), GFP_KERNEL);
};
if (dev == NULL || dev->priv == NULL)
{
printk(KERN_CRIT "init_etherdev failed ");
return 0;
}
memset(dev->priv,0,sizeof(struct arlan_private));
((struct arlan_private *) dev->priv)->conf =
kmalloc(sizeof(struct arlan_shmem), GFP_KERNEL);
if (dev == NULL || dev->priv == NULL ||
((struct arlan_private *) dev->priv)->conf == NULL)
{
return 0;
printk(KERN_CRIT " No memory at arlan_allocate_device \n");
}
/* Fill in the 'dev' fields. */
dev->base_addr = 0;
dev->mem_start = 0;
dev->mem_end = 0;
dev->mtu = 1500;
dev->flags = 0; /* IFF_BROADCAST & IFF_MULTICAST & IFF_PROMISC; */
dev->irq = 0;
dev->dma = 0;
dev->tx_queue_len = tx_queue_len;
ether_setup(dev);
dev->tx_queue_len = tx_queue_len;
dev->open = arlan_open;
dev->stop = arlan_close;
dev->hard_start_xmit = arlan_tx;
dev->get_stats = arlan_statistics;
dev->set_multicast_list = arlan_set_multicast;
dev->change_mtu = arlan_change_mtu;
dev->set_mac_address = arlan_mac_addr;
dev->tx_timeout = arlan_tx_timeout;
dev->watchdog_timeo = 3*HZ;
((struct arlan_private *) dev->priv)->irq_test_done = 0;
arlan_device[num] = dev;
((struct arlan_private *) arlan_device[num]->priv)->Conf = &(arlan_conf[num]);
((struct arlan_private *) dev->priv)->Conf->pre_Command_Wait = 40;
((struct arlan_private *) dev->priv)->Conf->rx_tweak1 = 30;
((struct arlan_private *) dev->priv)->Conf->rx_tweak2 = 0;
ARLAN_DEBUG_EXIT("arlan_allocate_device");
return (int) dev;
}
static int __init arlan_probe_here(struct net_device *dev, int memaddr)
{
volatile struct arlan_shmem *arlan;
ARLAN_DEBUG_ENTRY("arlan_probe_here");
if (arlan_check_fingerprint(memaddr))
return -ENODEV;
printk(KERN_NOTICE "%s: Arlan found at %x, \n ", dev->name, (int) virt_to_phys((void*)memaddr));
if (!arlan_allocate_device(arlans_found, dev))
return -1;
((struct arlan_private *) dev->priv)->card = (struct arlan_shmem *) memaddr;
arlan = (void *) memaddr;
dev->mem_start = memaddr;
dev->mem_end = memaddr + 0x1FFF;
if (dev->irq < 2)
{
READSHM(dev->irq, arlan->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 = (struct arlan_private *) dev->priv;
volatile struct arlan_shmem *arlan = priv->card;
int ret = 0;
ARLAN_DEBUG_ENTRY("arlan_open");
if (dev->mem_start == 0)
ret = arlan_probe_everywhere(dev);
if (ret != 0)
return ret;
arlan = ((struct arlan_private *) dev->priv)->card;
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;
priv->open_time = jiffies;
memcpy_fromio(dev->dev_addr, arlan->lanCardNodeId, 6);
memset(dev->broadcast, 0xff, 6);
priv->txOffset = 0;
dev->tx_queue_len = tx_queue_len;
priv->interrupt_processing_active = 0;
priv->command_lock = 0;
netif_start_queue (dev);
init_MUTEX(&priv->card_lock);
myATOMIC_INIT(priv->card_users, 1); /* damn 2.0.33 */
priv->registrationLostCount = 0;
priv->registrationLastSeen = jiffies;
priv->txLast = 0;
priv->tx_command_given = 0;
priv->rx_command_given = 0;
priv->reRegisterExp = 1;
priv->nof_tx = 0;
priv->nof_tx_ack = 0;
priv->last_command_was_rx = 0;
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);
#ifdef CONFIG_PROC_FS
#ifndef MODULE
if (arlan_device[0])
init_arlan_proc();
#endif
#endif
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 int arlan_tx(struct sk_buff *skb, struct net_device *dev)
{
struct arlan_private *priv = ((struct arlan_private *) dev->priv);
short length;
unsigned char *buf;
ARLAN_DEBUG_ENTRY("arlan_tx");
length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
buf = skb->data;
if (priv->txOffset + 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);
priv->tx_chain_active = 0;
ARLAN_DEBUG_EXIT("arlan_tx");
return 0;
bad_end:
arlan_process_interrupt(dev);
priv->tx_chain_active = 0;
netif_stop_queue (dev);
ARLAN_DEBUG_EXIT("arlan_tx");
return 1;
}
extern inline int DoNotReTransmitCrap(struct net_device *dev)
{
struct arlan_private *priv = ((struct arlan_private *) dev->priv);
if (TXLAST(dev).length < priv->Conf->ReTransmitPacketMaxSize)
return 1;
return 0;
}
extern inline int DoNotWaitReTransmitCrap(struct net_device *dev)
{
struct arlan_private *priv = ((struct arlan_private *) dev->priv);
if (TXLAST(dev).length < priv->Conf->waitReTransmitPacketMaxSize)
return 1;
return 0;
}
extern inline void arlan_queue_retransmit(struct net_device *dev)
{
struct arlan_private *priv = ((struct arlan_private *) dev->priv);
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 = ((struct arlan_private *) dev->priv);
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 = ((struct arlan_private *) dev->priv);
ARLAN_DEBUG_ENTRY("arlan_tx_done_interrupt");
priv->tx_last_cleared = jiffies;
priv->tx_command_given = 0;
priv->nof_tx_ack++;
switch (status)
{
case 1:
{
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
printk("arlan intr: transmit OK\n");
priv->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)
{
priv->txOffset = 0;
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 = (struct arlan_private *) dev->priv;
volatile struct arlan_shmem *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 (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 (jiffies - priv->in_time10 > conf->measure_rate * HZ * 10)
{
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 %2x:%2x:%2x:%2x:%2x:%2x \n", dev->name,
dmi->dmi_addr[0], dmi->dmi_addr[1], dmi->dmi_addr[2],
dmi->dmi_addr[3], dmi->dmi_addr[4], dmi->dmi_addr[5]);
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);
priv->stats.rx_dropped++;
break;
}
skb_reserve(skb, 2);
skb->dev = dev;
skbtmp = skb_put(skb, pkt_len);
memcpy_fromio(skbtmp + ARLAN_FAKE_HDR_LEN, ((char *) 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 %2x:%2x:%2x:%2x:%2x:%2x f %2x:%2x:%2x:%2x:%2x:%2x imd %2x:%2x:%2x:%2x:%2x:%2x ims %2x:%2x:%2x:%2x:%2x:%2x\n", dev->name,
(unsigned char) skbtmp[0], (unsigned char) skbtmp[1], (unsigned char) skbtmp[2], (unsigned char) skbtmp[3],
(unsigned char) skbtmp[4], (unsigned char) skbtmp[5], (unsigned char) skbtmp[6], (unsigned char) skbtmp[7],
(unsigned char) skbtmp[8], (unsigned char) skbtmp[9], (unsigned char) skbtmp[10], (unsigned char) skbtmp[11],
immedDestAddress[0], immedDestAddress[1], immedDestAddress[2],
immedDestAddress[3], immedDestAddress[4], immedDestAddress[5],
immedSrcAddress[0], immedSrcAddress[1], immedSrcAddress[2],
immedSrcAddress[3], immedSrcAddress[4], immedSrcAddress[5]);
}
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->last_rx = jiffies;
priv->stats.rx_packets++;
priv->stats.rx_bytes += pkt_len;
}
break;
default:
printk(KERN_ERR "arlan intr: received unknown status\n");
priv->stats.rx_crc_errors++;
break;
}
ARLAN_DEBUG_EXIT("arlan_rx_interrupt");
}
static void arlan_process_interrupt(struct net_device *dev)
{
struct arlan_private *priv = (struct arlan_private *) dev->priv;
volatile struct arlan_shmem *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 = arlan_time();
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)
{
priv->last_command_was_rx = 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)
{
priv->last_command_was_rx = 0;
WRITESHMB(arlan->rxStatus, 0x00);
printk(KERN_ERR "%s unknown rxStatus reason tx %d rx %d ",
dev->name, txStatus, rxStatus);
goto ends;
}
if (rxStatus == 0xff)
{
priv->last_command_was_rx = 0;
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 void arlan_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
struct net_device *dev = dev_id;
struct arlan_private *priv = (struct arlan_private *) dev->priv;
volatile struct arlan_shmem *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;
}
static int arlan_close(struct net_device *dev)
{
struct arlan_private *priv = (struct arlan_private *) dev->priv;
if (!dev)
{
printk(KERN_CRIT "arlan: No Device\n");
return 0;
}
priv = (struct arlan_private *) dev->priv;
if (!priv)
{
printk(KERN_CRIT "arlan: No Device priv \n");
return 0;
}
ARLAN_DEBUG_ENTRY("arlan_close");
del_timer(&priv->timer);
arlan_command(dev, ARLAN_COMMAND_POWERDOWN);
IFDEBUG(ARLAN_DEBUG_STARTUP)
printk(KERN_NOTICE "%s: Closing device\n", dev->name);
priv->open_time = 0;
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 = (struct arlan_private *) dev->priv;
volatile struct arlan_shmem *arlan = ((struct arlan_private *) dev->priv)->card;
ARLAN_DEBUG_ENTRY("arlan_statistics");
/* Update the statistics from the device registers. */
READSHM(priv->stats.collisions, arlan->numReTransmissions, u_int);
READSHM(priv->stats.rx_crc_errors, arlan->numCRCErrors, u_int);
READSHM(priv->stats.rx_dropped, arlan->numFramesDiscarded, u_int);
READSHM(priv->stats.rx_fifo_errors, arlan->numRXBufferOverflows, u_int);
READSHM(priv->stats.rx_frame_errors, arlan->numReceiveFramesLost, u_int);
READSHM(priv->stats.rx_over_errors, arlan->numRXOverruns, u_int);
READSHM(priv->stats.rx_packets, arlan->numDatagramsReceived, u_int);
READSHM(priv->stats.tx_aborted_errors, arlan->numAbortErrors, u_int);
READSHM(priv->stats.tx_carrier_errors, arlan->numStatusTimeouts, u_int);
READSHM(priv->stats.tx_dropped, arlan->numDatagramsDiscarded, u_int);
READSHM(priv->stats.tx_fifo_errors, arlan->numTXUnderruns, u_int);
READSHM(priv->stats.tx_packets, arlan->numDatagramsTransmitted, u_int);
READSHM(priv->stats.tx_window_errors, arlan->numHoldOffs, u_int);
ARLAN_DEBUG_EXIT("arlan_statistics");
return &priv->stats;
}
static void arlan_set_multicast(struct net_device *dev)
{
volatile struct arlan_shmem *arlan = ((struct arlan_private *) dev->priv)->card;
struct arlan_conf_stru *conf = ((struct arlan_private *) dev->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");
}
int __init arlan_probe(struct net_device *dev)
{
printk("Arlan driver %s\n", arlan_version);
if (arlan_probe_everywhere(dev))
return -ENODEV;
arlans_found++;
if (arlans_found == 1)
siteName = kmalloc(100, GFP_KERNEL);
return 0;
}
#ifdef MODULE
int init_module(void)
{
int i = 0;
ARLAN_DEBUG_ENTRY("init_module");
if (channelSet != channelSetUNKNOWN || channelNumber != channelNumberUNKNOWN || systemId != systemIdUNKNOWN)
{
printk(KERN_WARNING "arlan: wrong module params for multiple devices\n ");
return -1;
}
numDevices = arlan_find_devices();
if (numDevices == 0)
{
printk(KERN_ERR "arlan: no devices found \n");
return -1;
}
siteName = kmalloc(100, GFP_KERNEL);
if(siteName==NULL)
{
printk(KERN_ERR "arlan: No memory for site name.\n");
return -1;
}
for (i = 0; i < numDevices && i < MAX_ARLANS; i++)
{
if (!arlan_allocate_device(i, NULL))
return -1;
if (arlan_device[i] == NULL)
{
printk(KERN_CRIT "arlan: Not Enough memory \n");
return -1;
}
if (probe)
arlan_probe_everywhere(arlan_device[i]);
// arlan_command(arlan_device[i], ARLAN_COMMAND_POWERDOWN );
}
printk(KERN_INFO "Arlan driver %s\n", arlan_version);
ARLAN_DEBUG_EXIT("init_module");
return 0;
}
void cleanup_module(void)
{
int i = 0;
ARLAN_DEBUG_ENTRY("cleanup_module");
IFDEBUG(ARLAN_DEBUG_SHUTDOWN)
printk(KERN_INFO "arlan: unloading module\n");
for (i = 0; i < MAX_ARLANS; i++)
{
if (arlan_device[i])
{
arlan_command(arlan_device[i], ARLAN_COMMAND_POWERDOWN );
// release_mem_region(virt_to_phys(arlan_device[i]->mem_start), 0x2000 );
unregister_netdev(arlan_device[i]);
if (arlan_device[i]->priv)
{
if (((struct arlan_private *) arlan_device[i]->priv)->conf)
kfree(((struct arlan_private *) arlan_device[i]->priv)->conf);
kfree(arlan_device[i]);
}
arlan_device[i] = NULL;
}
}
ARLAN_DEBUG_EXIT("cleanup_module");
}
#endif
MODULE_LICENSE("GPL");
|