* [PATCH] (1/8) arlan -- merge arlan-proc with main code
@ 2003-09-25 22:59 Stephen Hemminger
2003-09-25 23:30 ` Jeff Garzik
0 siblings, 1 reply; 2+ messages in thread
From: Stephen Hemminger @ 2003-09-25 22:59 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev
The arlan driver tries to build it's /proc interface into a separate module,
which leads to circular dependencies and other ugliness. This patch
moves arlan.c to arlan-main.c and changes initialization builds one module arlan.o
Patch is for 2.6.0-test5
diff -Nru a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
--- a/drivers/net/wireless/Makefile Wed Sep 24 12:43:34 2003
+++ b/drivers/net/wireless/Makefile Wed Sep 24 12:43:34 2003
@@ -3,7 +3,9 @@
#
obj-$(CONFIG_STRIP) += strip.o
-obj-$(CONFIG_ARLAN) += arlan.o arlan-proc.o
+obj-$(CONFIG_ARLAN) += arlan.o
+
+arlan-objs := arlan-main.o arlan-proc.o
# Obsolete cards
obj-$(CONFIG_WAVELAN) += wavelan.o
diff -Nru a/drivers/net/wireless/arlan-main.c b/drivers/net/wireless/arlan-main.c
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/drivers/net/wireless/arlan-main.c Wed Sep 24 12:43:34 2003
@@ -0,0 +1,2069 @@
+/*
+ * 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/version.h>
+#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
+
+// #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 irqreturn_t 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);
+
+static 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)
+
+
+
+static 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;
+
+};
+
+static 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 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 = ((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) &&
+ 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))
+ {
+ 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 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;
+ struct arlan_private *ap;
+
+ ARLAN_DEBUG_ENTRY("arlan_allocate_device");
+
+ if (!devs) {
+ dev = init_etherdev(0, sizeof(struct arlan_private) + sizeof(struct arlan_shmem));
+ if (!dev) {
+ printk(KERN_ERR "ARLAN: init_etherdev failed\n");
+ return 0;
+ }
+ ap = dev->priv;
+ ap->conf = dev->priv + sizeof(struct arlan_private);
+ ap->init_etherdev_alloc = 1;
+ } else {
+ dev = devs;
+ dev->priv = kmalloc(sizeof(struct arlan_private) + sizeof(struct arlan_shmem), GFP_KERNEL);
+ if (!dev->priv) {
+ printk(KERN_ERR "ARLAN: kmalloc of dev->priv failed\n");
+ return 0;
+ }
+ ap = dev->priv;
+ ap->conf = dev->priv + sizeof(struct arlan_private);
+ memset(ap, 0, sizeof(*ap));
+ }
+
+ /* 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);
+
+ 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;
+}
+
+
+static 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;
+
+}
+
+static 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;
+}
+
+static 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 irqreturn_t 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 IRQ_HANDLED;
+
+}
+
+
+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
+
+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;
+}
+
+int init_module(void)
+{
+ int i = 0;
+
+ ARLAN_DEBUG_ENTRY("init_module");
+
+ if (channelSet != channelSetUNKNOWN || channelNumber != channelNumberUNKNOWN || systemId != systemIdUNKNOWN)
+ return -EINVAL;
+
+ numDevices = arlan_find_devices();
+ if (numDevices == 0)
+ return -ENODEV;
+
+ siteName = kmalloc(100, GFP_KERNEL);
+ if(siteName==NULL)
+ return -ENOMEM;
+
+ for (i = 0; i < numDevices && i < MAX_ARLANS; i++)
+ {
+ if (!arlan_allocate_device(i, NULL))
+ return -ENOMEM;
+
+ if (arlan_device[i] == NULL)
+ return -ENOMEM;
+
+ if (probe)
+ arlan_probe_everywhere(arlan_device[i]);
+// arlan_command(arlan_device[i], ARLAN_COMMAND_POWERDOWN );
+ }
+ init_arlan_proc();
+ printk(KERN_INFO "Arlan driver %s\n", arlan_version);
+ ARLAN_DEBUG_EXIT("init_module");
+ return 0;
+}
+
+
+void cleanup_module(void)
+{
+ int i = 0;
+ struct arlan_private *ap;
+
+ 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++)
+ {
+ 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]);
+ ap = arlan_device[i]->priv;
+ if (ap->init_etherdev_alloc) {
+ free_netdev(arlan_device[i]);
+ arlan_device[i] = NULL;
+ } else {
+ kfree(ap);
+ ap = NULL;
+ }
+ }
+ }
+ ARLAN_DEBUG_EXIT("cleanup_module");
+}
+
+
+#endif
+MODULE_LICENSE("GPL");
diff -Nru a/drivers/net/wireless/arlan-proc.c b/drivers/net/wireless/arlan-proc.c
--- a/drivers/net/wireless/arlan-proc.c Wed Sep 24 12:43:34 2003
+++ b/drivers/net/wireless/arlan-proc.c Wed Sep 24 12:43:34 2003
@@ -1233,7 +1233,7 @@
static struct ctl_table_header *arlan_device_sysctl_header;
-int init_arlan_proc(void)
+int __init init_arlan_proc(void)
{
int i = 0;
@@ -1247,25 +1247,11 @@
return 0;
-};
+}
-
-
-#ifdef MODULE
-
-int init_module(void)
-{
-
- return init_arlan_proc();
-};
-
-void cleanup_module(void)
+void __exit cleanup_arlan_proc(void)
{
unregister_sysctl_table(arlan_device_sysctl_header);
arlan_device_sysctl_header = NULL;
- return;
-};
-
-#endif // MODULE
-MODULE_LICENSE("GPL");
+}
diff -Nru a/drivers/net/wireless/arlan.c b/drivers/net/wireless/arlan.c
--- a/drivers/net/wireless/arlan.c Wed Sep 24 12:43:34 2003
+++ /dev/null Wed Dec 31 16:00:00 1969
@@ -1,2078 +0,0 @@
-/*
- * 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/version.h>
-#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 irqreturn_t 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);
-
-static 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)
-
-
-
-static 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;
-
-};
-
-static 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 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 = ((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) &&
- 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))
- {
- 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 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;
- struct arlan_private *ap;
-
- ARLAN_DEBUG_ENTRY("arlan_allocate_device");
-
- if (!devs) {
- dev = init_etherdev(0, sizeof(struct arlan_private) + sizeof(struct arlan_shmem));
- if (!dev) {
- printk(KERN_ERR "ARLAN: init_etherdev failed\n");
- return 0;
- }
- ap = dev->priv;
- ap->conf = dev->priv + sizeof(struct arlan_private);
- ap->init_etherdev_alloc = 1;
- } else {
- dev = devs;
- dev->priv = kmalloc(sizeof(struct arlan_private) + sizeof(struct arlan_shmem), GFP_KERNEL);
- if (!dev->priv) {
- printk(KERN_ERR "ARLAN: kmalloc of dev->priv failed\n");
- return 0;
- }
- ap = dev->priv;
- ap->conf = dev->priv + sizeof(struct arlan_private);
- memset(ap, 0, sizeof(*ap));
- }
-
- /* 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;
-}
-
-
-static 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;
-
-}
-
-static 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;
-}
-
-static 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 irqreturn_t 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 IRQ_HANDLED;
-
-}
-
-
-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
-
-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;
-}
-
-int init_module(void)
-{
- int i = 0;
-
- ARLAN_DEBUG_ENTRY("init_module");
-
- if (channelSet != channelSetUNKNOWN || channelNumber != channelNumberUNKNOWN || systemId != systemIdUNKNOWN)
- return -EINVAL;
-
- numDevices = arlan_find_devices();
- if (numDevices == 0)
- return -ENODEV;
-
- siteName = kmalloc(100, GFP_KERNEL);
- if(siteName==NULL)
- return -ENOMEM;
-
- for (i = 0; i < numDevices && i < MAX_ARLANS; i++)
- {
- if (!arlan_allocate_device(i, NULL))
- return -ENOMEM;
-
- if (arlan_device[i] == NULL)
- return -ENOMEM;
-
- 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;
- struct arlan_private *ap;
-
- 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]);
- ap = arlan_device[i]->priv;
- if (ap->init_etherdev_alloc) {
- free_netdev(arlan_device[i]);
- arlan_device[i] = NULL;
- } else {
- kfree(ap);
- ap = NULL;
- }
- }
- }
- ARLAN_DEBUG_EXIT("cleanup_module");
-}
-
-
-#endif
-MODULE_LICENSE("GPL");
diff -Nru a/drivers/net/wireless/arlan.h b/drivers/net/wireless/arlan.h
--- a/drivers/net/wireless/arlan.h Wed Sep 24 12:43:34 2003
+++ b/drivers/net/wireless/arlan.h Wed Sep 24 12:43:34 2003
@@ -39,9 +39,12 @@
#define ARLAN_RCV_PROMISC 1
#define ARLAN_RCV_CONTROL 2
-
#ifdef CONFIG_PROC_FS
-extern int init_arlan_proc(void);
+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];
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2003-09-25 23:30 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
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2003-09-25 22:59 [PATCH] (1/8) arlan -- merge arlan-proc with main code Stephen Hemminger
2003-09-25 23:30 ` Jeff Garzik
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