1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
1897 lines
52 KiB
C
1897 lines
52 KiB
C
/*
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* Copyright (C) 1997 Cullen Jennings
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* Copyright (C) 1998 Elmer Joandiu, elmer@ylenurme.ee
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* GNU General Public License applies
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* This module provides support for the Arlan 655 card made by Aironet
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*/
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#include <linux/config.h>
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#include "arlan.h"
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#if BITS_PER_LONG != 32
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# error FIXME: this driver requires a 32-bit platform
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#endif
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static const char *arlan_version = "C.Jennigs 97 & Elmer.Joandi@ut.ee Oct'98, http://www.ylenurme.ee/~elmer/655/";
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struct net_device *arlan_device[MAX_ARLANS];
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static int SID = SIDUNKNOWN;
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static int radioNodeId = radioNodeIdUNKNOWN;
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static char encryptionKey[12] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'};
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int arlan_debug = debugUNKNOWN;
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static int spreadingCode = spreadingCodeUNKNOWN;
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static int channelNumber = channelNumberUNKNOWN;
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static int channelSet = channelSetUNKNOWN;
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static int systemId = systemIdUNKNOWN;
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static int registrationMode = registrationModeUNKNOWN;
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static int keyStart;
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static int tx_delay_ms;
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static int retries = 5;
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static int tx_queue_len = 1;
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static int arlan_EEPROM_bad;
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#ifdef ARLAN_DEBUGGING
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static int arlan_entry_debug;
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static int arlan_exit_debug;
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static int testMemory = testMemoryUNKNOWN;
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static int irq = irqUNKNOWN;
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static int txScrambled = 1;
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static int mdebug;
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module_param(irq, int, 0);
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module_param(mdebug, int, 0);
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module_param(testMemory, int, 0);
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module_param(arlan_entry_debug, int, 0);
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module_param(arlan_exit_debug, int, 0);
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module_param(txScrambled, int, 0);
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MODULE_PARM_DESC(irq, "(unused)");
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MODULE_PARM_DESC(testMemory, "(unused)");
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MODULE_PARM_DESC(mdebug, "Arlan multicast debugging (0-1)");
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#endif
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module_param(arlan_debug, int, 0);
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module_param(spreadingCode, int, 0);
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module_param(channelNumber, int, 0);
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module_param(channelSet, int, 0);
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module_param(systemId, int, 0);
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module_param(registrationMode, int, 0);
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module_param(radioNodeId, int, 0);
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module_param(SID, int, 0);
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module_param(keyStart, int, 0);
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module_param(tx_delay_ms, int, 0);
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module_param(retries, int, 0);
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module_param(tx_queue_len, int, 0);
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module_param(arlan_EEPROM_bad, int, 0);
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MODULE_PARM_DESC(arlan_debug, "Arlan debug enable (0-1)");
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MODULE_PARM_DESC(retries, "Arlan maximum packet retransmisions");
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#ifdef ARLAN_ENTRY_EXIT_DEBUGGING
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MODULE_PARM_DESC(arlan_entry_debug, "Arlan driver function entry debugging");
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MODULE_PARM_DESC(arlan_exit_debug, "Arlan driver function exit debugging");
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MODULE_PARM_DESC(arlan_entry_and_exit_debug, "Arlan driver function entry and exit debugging");
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#else
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MODULE_PARM_DESC(arlan_entry_debug, "(ignored)");
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MODULE_PARM_DESC(arlan_exit_debug, "(ignored)");
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MODULE_PARM_DESC(arlan_entry_and_exit_debug, "(ignored)");
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#endif
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struct arlan_conf_stru arlan_conf[MAX_ARLANS];
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static int arlans_found;
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static int arlan_open(struct net_device *dev);
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static int arlan_tx(struct sk_buff *skb, struct net_device *dev);
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static irqreturn_t arlan_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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static int arlan_close(struct net_device *dev);
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static struct net_device_stats *
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arlan_statistics (struct net_device *dev);
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static void arlan_set_multicast (struct net_device *dev);
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static int arlan_hw_tx (struct net_device* dev, char *buf, int length );
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static int arlan_hw_config (struct net_device * dev);
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static void arlan_tx_done_interrupt (struct net_device * dev, int status);
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static void arlan_rx_interrupt (struct net_device * dev, u_char rxStatus, u_short, u_short);
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static void arlan_process_interrupt (struct net_device * dev);
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static void arlan_tx_timeout (struct net_device *dev);
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static inline long us2ticks(int us)
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{
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return us * (1000000 / HZ);
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}
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#ifdef ARLAN_ENTRY_EXIT_DEBUGGING
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#define ARLAN_DEBUG_ENTRY(name) \
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{\
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struct timeval timev;\
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do_gettimeofday(&timev);\
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if (arlan_entry_debug || arlan_entry_and_exit_debug)\
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printk("--->>>" name " %ld " "\n",((long int) timev.tv_sec * 1000000 + timev.tv_usec));\
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}
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#define ARLAN_DEBUG_EXIT(name) \
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{\
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struct timeval timev;\
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do_gettimeofday(&timev);\
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if (arlan_exit_debug || arlan_entry_and_exit_debug)\
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printk("<<<---" name " %ld " "\n",((long int) timev.tv_sec * 1000000 + timev.tv_usec) );\
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}
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#else
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#define ARLAN_DEBUG_ENTRY(name)
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#define ARLAN_DEBUG_EXIT(name)
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#endif
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#define arlan_interrupt_ack(dev)\
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clearClearInterrupt(dev);\
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setClearInterrupt(dev);
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static inline int arlan_drop_tx(struct net_device *dev)
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{
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struct arlan_private *priv = netdev_priv(dev);
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priv->stats.tx_errors++;
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if (priv->Conf->tx_delay_ms)
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{
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priv->tx_done_delayed = jiffies + priv->Conf->tx_delay_ms * HZ / 1000 + 1;
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}
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else
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{
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priv->waiting_command_mask &= ~ARLAN_COMMAND_TX;
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TXHEAD(dev).offset = 0;
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TXTAIL(dev).offset = 0;
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priv->txLast = 0;
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priv->bad = 0;
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if (!priv->under_reset && !priv->under_config)
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netif_wake_queue (dev);
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}
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return 1;
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}
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int arlan_command(struct net_device *dev, int command_p)
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{
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struct arlan_private *priv = netdev_priv(dev);
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volatile struct arlan_shmem __iomem *arlan = priv->card;
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struct arlan_conf_stru *conf = priv->Conf;
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int udelayed = 0;
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int i = 0;
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unsigned long flags;
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ARLAN_DEBUG_ENTRY("arlan_command");
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if (priv->card_polling_interval)
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priv->card_polling_interval = 1;
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if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
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printk(KERN_DEBUG "arlan_command, %lx commandByte %x waiting %lx incoming %x \n",
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jiffies, READSHMB(arlan->commandByte),
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priv->waiting_command_mask, command_p);
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priv->waiting_command_mask |= command_p;
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if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
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if (time_after(jiffies, priv->lastReset + 5 * HZ))
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priv->waiting_command_mask &= ~ARLAN_COMMAND_RESET;
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if (priv->waiting_command_mask & ARLAN_COMMAND_INT_ACK)
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{
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arlan_interrupt_ack(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_ACK;
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}
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if (priv->waiting_command_mask & ARLAN_COMMAND_INT_ENABLE)
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{
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setInterruptEnable(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_ENABLE;
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}
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/* Card access serializing lock */
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spin_lock_irqsave(&priv->lock, flags);
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/* Check cards status and waiting */
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if (priv->waiting_command_mask & (ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW))
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{
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while (priv->waiting_command_mask & (ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW))
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{
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if (READSHMB(arlan->resetFlag) ||
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READSHMB(arlan->commandByte)) /* ||
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(readControlRegister(dev) & ARLAN_ACCESS))
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*/
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udelay(40);
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else
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priv->waiting_command_mask &= ~(ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW);
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udelayed++;
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if (priv->waiting_command_mask & ARLAN_COMMAND_LONG_WAIT_NOW)
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{
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if (udelayed * 40 > 1000000)
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{
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printk(KERN_ERR "%s long wait too long \n", dev->name);
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priv->waiting_command_mask |= ARLAN_COMMAND_RESET;
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break;
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}
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_WAIT_NOW)
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{
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if (udelayed * 40 > 1000)
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{
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printk(KERN_ERR "%s short wait too long \n", dev->name);
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goto bad_end;
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}
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}
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}
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}
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else
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{
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i = 0;
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while ((READSHMB(arlan->resetFlag) ||
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READSHMB(arlan->commandByte)) &&
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conf->pre_Command_Wait > (i++) * 10)
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udelay(10);
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if ((READSHMB(arlan->resetFlag) ||
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READSHMB(arlan->commandByte)) &&
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!(priv->waiting_command_mask & ARLAN_COMMAND_RESET))
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{
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goto card_busy_end;
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}
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}
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if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
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priv->under_reset = 1;
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if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
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priv->under_config = 1;
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/* Issuing command */
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arlan_lock_card_access(dev);
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if (priv->waiting_command_mask & ARLAN_COMMAND_POWERUP)
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{
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// if (readControlRegister(dev) & (ARLAN_ACCESS && ARLAN_POWER))
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setPowerOn(dev);
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arlan_interrupt_lancpu(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERUP;
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priv->waiting_command_mask |= ARLAN_COMMAND_RESET;
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priv->card_polling_interval = HZ / 10;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_ACTIVATE)
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{
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WRITESHMB(arlan->commandByte, ARLAN_COM_ACTIVATE);
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arlan_interrupt_lancpu(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_ACTIVATE;
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priv->card_polling_interval = HZ / 10;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_RX_ABORT)
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{
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if (priv->rx_command_given)
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{
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WRITESHMB(arlan->commandByte, ARLAN_COM_RX_ABORT);
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arlan_interrupt_lancpu(dev);
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priv->rx_command_given = 0;
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}
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priv->waiting_command_mask &= ~ARLAN_COMMAND_RX_ABORT;
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priv->card_polling_interval = 1;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_TX_ABORT)
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{
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if (priv->tx_command_given)
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{
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WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ABORT);
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arlan_interrupt_lancpu(dev);
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priv->tx_command_given = 0;
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}
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priv->waiting_command_mask &= ~ARLAN_COMMAND_TX_ABORT;
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priv->card_polling_interval = 1;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
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{
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priv->under_reset=1;
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netif_stop_queue (dev);
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arlan_drop_tx(dev);
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if (priv->tx_command_given || priv->rx_command_given)
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{
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printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
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}
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netif_stop_queue (dev);
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if (arlan_debug & ARLAN_DEBUG_RESET)
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printk(KERN_ERR "%s: Doing chip reset\n", dev->name);
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priv->lastReset = jiffies;
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WRITESHM(arlan->commandByte, 0, u_char);
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/* hold card in reset state */
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setHardwareReset(dev);
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/* set reset flag and then release reset */
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WRITESHM(arlan->resetFlag, 0xff, u_char);
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clearChannelAttention(dev);
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clearHardwareReset(dev);
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priv->card_polling_interval = HZ / 4;
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priv->waiting_command_mask &= ~ARLAN_COMMAND_RESET;
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priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;
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// priv->waiting_command_mask |= ARLAN_COMMAND_INT_RENABLE;
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// priv->waiting_command_mask |= ARLAN_COMMAND_RX;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RACK)
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{
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clearHardwareReset(dev);
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clearClearInterrupt(dev);
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setClearInterrupt(dev);
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setInterruptEnable(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RACK;
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priv->waiting_command_mask |= ARLAN_COMMAND_CONF;
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priv->under_config = 1;
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priv->under_reset = 0;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RENABLE)
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{
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setInterruptEnable(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RENABLE;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
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{
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if (priv->tx_command_given || priv->rx_command_given)
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{
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printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
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}
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arlan_drop_tx(dev);
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setInterruptEnable(dev);
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arlan_hw_config(dev);
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arlan_interrupt_lancpu(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF;
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priv->card_polling_interval = HZ / 10;
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// priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;
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// priv->waiting_command_mask |= ARLAN_COMMAND_INT_ENABLE;
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priv->waiting_command_mask |= ARLAN_COMMAND_CONF_WAIT;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF_WAIT)
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{
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if (READSHMB(arlan->configuredStatusFlag) != 0 &&
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READSHMB(arlan->diagnosticInfo) == 0xff)
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{
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priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF_WAIT;
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priv->waiting_command_mask |= ARLAN_COMMAND_RX;
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priv->waiting_command_mask |= ARLAN_COMMAND_TBUSY_CLEAR;
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priv->card_polling_interval = HZ / 10;
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priv->tx_command_given = 0;
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priv->under_config = 0;
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}
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else
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{
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priv->card_polling_interval = 1;
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if (arlan_debug & ARLAN_DEBUG_TIMING)
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printk(KERN_ERR "configure delayed \n");
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}
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_RX)
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{
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if (!registrationBad(dev))
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{
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setInterruptEnable(dev);
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memset_io(arlan->commandParameter, 0, 0xf);
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WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_RX_ENABLE);
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WRITESHMB(arlan->commandParameter[0], conf->rxParameter);
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arlan_interrupt_lancpu(dev);
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priv->rx_command_given = 0; // mnjah, bad
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priv->waiting_command_mask &= ~ARLAN_COMMAND_RX;
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priv->card_polling_interval = 1;
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}
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else
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priv->card_polling_interval = 2;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_TBUSY_CLEAR)
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{
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if ( !registrationBad(dev) &&
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(netif_queue_stopped(dev) || !netif_running(dev)) )
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{
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priv->waiting_command_mask &= ~ARLAN_COMMAND_TBUSY_CLEAR;
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netif_wake_queue (dev);
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}
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_TX)
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{
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if (!test_and_set_bit(0, (void *) &priv->tx_command_given))
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{
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if (time_after(jiffies,
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priv->tx_last_sent + us2ticks(conf->rx_tweak1))
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|| time_before(jiffies,
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priv->last_rx_int_ack_time + us2ticks(conf->rx_tweak2)))
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{
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setInterruptEnable(dev);
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memset_io(arlan->commandParameter, 0, 0xf);
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WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ENABLE | ARLAN_COM_INT);
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memcpy_toio(arlan->commandParameter, &TXLAST(dev), 14);
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// for ( i=1 ; i < 15 ; i++) printk("%02x:",READSHMB(arlan->commandParameter[i]));
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priv->tx_last_sent = jiffies;
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arlan_interrupt_lancpu(dev);
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priv->tx_command_given = 1;
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priv->waiting_command_mask &= ~ARLAN_COMMAND_TX;
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priv->card_polling_interval = 1;
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}
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else
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{
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priv->tx_command_given = 0;
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priv->card_polling_interval = 1;
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}
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}
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else if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
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printk(KERN_ERR "tx command when tx chain locked \n");
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOPINT)
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{
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{
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WRITESHMB(arlan->commandByte, ARLAN_COM_NOP | ARLAN_COM_INT);
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}
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arlan_interrupt_lancpu(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOPINT;
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priv->card_polling_interval = HZ / 3;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOP)
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{
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WRITESHMB(arlan->commandByte, ARLAN_COM_NOP);
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arlan_interrupt_lancpu(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOP;
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priv->card_polling_interval = HZ / 3;
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}
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else if (priv->waiting_command_mask & ARLAN_COMMAND_SLOW_POLL)
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{
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WRITESHMB(arlan->commandByte, ARLAN_COM_GOTO_SLOW_POLL);
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arlan_interrupt_lancpu(dev);
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priv->waiting_command_mask &= ~ARLAN_COMMAND_SLOW_POLL;
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priv->card_polling_interval = HZ / 3;
|
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}
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_POWERDOWN)
|
|
{
|
|
setPowerOff(dev);
|
|
if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
|
|
printk(KERN_WARNING "%s: Arlan Going Standby\n", dev->name);
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERDOWN;
|
|
priv->card_polling_interval = 3 * HZ;
|
|
}
|
|
arlan_unlock_card_access(dev);
|
|
for (i = 0; READSHMB(arlan->commandByte) && i < 20; i++)
|
|
udelay(10);
|
|
if (READSHMB(arlan->commandByte))
|
|
if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
|
|
printk(KERN_ERR "card busy leaving command %lx\n", priv->waiting_command_mask);
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
ARLAN_DEBUG_EXIT("arlan_command");
|
|
priv->last_command_buff_free_time = jiffies;
|
|
return 0;
|
|
|
|
card_busy_end:
|
|
if (time_after(jiffies, priv->last_command_buff_free_time + HZ))
|
|
priv->waiting_command_mask |= ARLAN_COMMAND_CLEAN_AND_RESET;
|
|
|
|
if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
|
|
printk(KERN_ERR "%s arlan_command card busy end \n", dev->name);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
ARLAN_DEBUG_EXIT("arlan_command");
|
|
return 1;
|
|
|
|
bad_end:
|
|
printk(KERN_ERR "%s arlan_command bad end \n", dev->name);
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
ARLAN_DEBUG_EXIT("arlan_command");
|
|
|
|
return -1;
|
|
}
|
|
|
|
static inline void arlan_command_process(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
|
|
int times = 0;
|
|
while (priv->waiting_command_mask && times < 8)
|
|
{
|
|
if (priv->waiting_command_mask)
|
|
{
|
|
if (arlan_command(dev, 0))
|
|
break;
|
|
times++;
|
|
}
|
|
/* if long command, we won't repeat trying */ ;
|
|
if (priv->card_polling_interval > 1)
|
|
break;
|
|
times++;
|
|
}
|
|
}
|
|
|
|
|
|
static inline void arlan_retransmit_now(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_retransmit_now");
|
|
if (TXLAST(dev).offset == 0)
|
|
{
|
|
if (TXHEAD(dev).offset)
|
|
{
|
|
priv->txLast = 0;
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to head \n");
|
|
|
|
}
|
|
else if (TXTAIL(dev).offset)
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to tail \n");
|
|
priv->txLast = 1;
|
|
}
|
|
else
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "ReTransmit buff empty");
|
|
netif_wake_queue (dev);
|
|
return;
|
|
|
|
}
|
|
arlan_command(dev, ARLAN_COMMAND_TX);
|
|
|
|
priv->Conf->driverRetransmissions++;
|
|
priv->retransmissions++;
|
|
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("Retransmit %d bytes \n", TXLAST(dev).length);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_retransmit_now");
|
|
}
|
|
|
|
|
|
|
|
static void arlan_registration_timer(unsigned long data)
|
|
{
|
|
struct net_device *dev = (struct net_device *) data;
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
int bh_mark_needed = 0;
|
|
int next_tick = 1;
|
|
long lostTime = ((long)jiffies - (long)priv->registrationLastSeen)
|
|
* (1000/HZ);
|
|
|
|
if (registrationBad(dev))
|
|
{
|
|
priv->registrationLostCount++;
|
|
if (lostTime > 7000 && lostTime < 7200)
|
|
{
|
|
printk(KERN_NOTICE "%s registration Lost \n", dev->name);
|
|
}
|
|
if (lostTime / priv->reRegisterExp > 2000)
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
|
|
if (lostTime / (priv->reRegisterExp) > 3500)
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
|
|
if (priv->reRegisterExp < 400)
|
|
priv->reRegisterExp += 2;
|
|
if (lostTime > 7200)
|
|
{
|
|
next_tick = HZ;
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (priv->Conf->registrationMode && lostTime > 10000 &&
|
|
priv->registrationLostCount)
|
|
{
|
|
printk(KERN_NOTICE "%s registration is back after %ld milliseconds\n",
|
|
dev->name, lostTime);
|
|
}
|
|
priv->registrationLastSeen = jiffies;
|
|
priv->registrationLostCount = 0;
|
|
priv->reRegisterExp = 1;
|
|
if (!netif_running(dev) )
|
|
netif_wake_queue(dev);
|
|
if (time_after(priv->tx_last_sent,priv->tx_last_cleared) &&
|
|
time_after(jiffies, priv->tx_last_sent * 5*HZ) ){
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
|
|
priv->tx_last_cleared = jiffies;
|
|
}
|
|
}
|
|
|
|
|
|
if (!registrationBad(dev) && priv->ReTransmitRequested)
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk(KERN_ERR "Retransmit from timer \n");
|
|
priv->ReTransmitRequested = 0;
|
|
arlan_retransmit_now(dev);
|
|
}
|
|
if (!registrationBad(dev) &&
|
|
time_after(jiffies, priv->tx_done_delayed) &&
|
|
priv->tx_done_delayed != 0)
|
|
{
|
|
TXLAST(dev).offset = 0;
|
|
if (priv->txLast)
|
|
priv->txLast = 0;
|
|
else if (TXTAIL(dev).offset)
|
|
priv->txLast = 1;
|
|
if (TXLAST(dev).offset)
|
|
{
|
|
arlan_retransmit_now(dev);
|
|
dev->trans_start = jiffies;
|
|
}
|
|
if (!(TXHEAD(dev).offset && TXTAIL(dev).offset))
|
|
{
|
|
netif_wake_queue (dev);
|
|
}
|
|
priv->tx_done_delayed = 0;
|
|
bh_mark_needed = 1;
|
|
}
|
|
if (bh_mark_needed)
|
|
{
|
|
netif_wake_queue (dev);
|
|
}
|
|
arlan_process_interrupt(dev);
|
|
|
|
if (next_tick < priv->card_polling_interval)
|
|
next_tick = priv->card_polling_interval;
|
|
|
|
priv->timer.expires = jiffies + next_tick;
|
|
|
|
add_timer(&priv->timer);
|
|
}
|
|
|
|
|
|
#ifdef ARLAN_DEBUGGING
|
|
|
|
static void arlan_print_registers(struct net_device *dev, int line)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
volatile struct arlan_shmem *arlan = priv->card;
|
|
|
|
u_char hostcpuLock, lancpuLock, controlRegister, cntrlRegImage,
|
|
txStatus, rxStatus, interruptInProgress, commandByte;
|
|
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_print_registers");
|
|
READSHM(interruptInProgress, arlan->interruptInProgress, u_char);
|
|
READSHM(hostcpuLock, arlan->hostcpuLock, u_char);
|
|
READSHM(lancpuLock, arlan->lancpuLock, u_char);
|
|
READSHM(controlRegister, arlan->controlRegister, u_char);
|
|
READSHM(cntrlRegImage, arlan->cntrlRegImage, u_char);
|
|
READSHM(txStatus, arlan->txStatus, u_char);
|
|
READSHM(rxStatus, arlan->rxStatus, u_char);
|
|
READSHM(commandByte, arlan->commandByte, u_char);
|
|
|
|
printk(KERN_WARNING "line %04d IP %02x HL %02x LL %02x CB %02x CR %02x CRI %02x TX %02x RX %02x\n",
|
|
line, interruptInProgress, hostcpuLock, lancpuLock, commandByte,
|
|
controlRegister, cntrlRegImage, txStatus, rxStatus);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_print_registers");
|
|
}
|
|
#endif
|
|
|
|
|
|
static int arlan_hw_tx(struct net_device *dev, char *buf, int length)
|
|
{
|
|
int i;
|
|
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
|
|
|
int tailStarts = 0x800;
|
|
int headEnds = 0x0;
|
|
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_hw_tx");
|
|
if (TXHEAD(dev).offset)
|
|
headEnds = (((TXHEAD(dev).offset + TXHEAD(dev).length - offsetof(struct arlan_shmem, txBuffer)) / 64) + 1) * 64;
|
|
if (TXTAIL(dev).offset)
|
|
tailStarts = 0x800 - (((TXTAIL(dev).offset - offsetof(struct arlan_shmem, txBuffer)) / 64) + 2) * 64;
|
|
|
|
|
|
if (!TXHEAD(dev).offset && length < tailStarts)
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk(KERN_ERR "TXHEAD insert, tailStart %d\n", tailStarts);
|
|
|
|
TXHEAD(dev).offset =
|
|
offsetof(struct arlan_shmem, txBuffer);
|
|
TXHEAD(dev).length = length - ARLAN_FAKE_HDR_LEN;
|
|
for (i = 0; i < 6; i++)
|
|
TXHEAD(dev).dest[i] = buf[i];
|
|
TXHEAD(dev).clear = conf->txClear;
|
|
TXHEAD(dev).retries = conf->txRetries; /* 0 is use default */
|
|
TXHEAD(dev).routing = conf->txRouting;
|
|
TXHEAD(dev).scrambled = conf->txScrambled;
|
|
memcpy_toio((char __iomem *)arlan + TXHEAD(dev).offset, buf + ARLAN_FAKE_HDR_LEN, TXHEAD(dev).length);
|
|
}
|
|
else if (!TXTAIL(dev).offset && length < (0x800 - headEnds))
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk(KERN_ERR "TXTAIL insert, headEnd %d\n", headEnds);
|
|
|
|
TXTAIL(dev).offset =
|
|
offsetof(struct arlan_shmem, txBuffer) + 0x800 - (length / 64 + 2) * 64;
|
|
TXTAIL(dev).length = length - ARLAN_FAKE_HDR_LEN;
|
|
for (i = 0; i < 6; i++)
|
|
TXTAIL(dev).dest[i] = buf[i];
|
|
TXTAIL(dev).clear = conf->txClear;
|
|
TXTAIL(dev).retries = conf->txRetries;
|
|
TXTAIL(dev).routing = conf->txRouting;
|
|
TXTAIL(dev).scrambled = conf->txScrambled;
|
|
memcpy_toio(((char __iomem *)arlan + TXTAIL(dev).offset), buf + ARLAN_FAKE_HDR_LEN, TXTAIL(dev).length);
|
|
}
|
|
else
|
|
{
|
|
netif_stop_queue (dev);
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk(KERN_ERR "TX TAIL & HEAD full, return, tailStart %d headEnd %d\n", tailStarts, headEnds);
|
|
return -1;
|
|
}
|
|
priv->out_bytes += length;
|
|
priv->out_bytes10 += length;
|
|
if (conf->measure_rate < 1)
|
|
conf->measure_rate = 1;
|
|
if (time_after(jiffies, priv->out_time + conf->measure_rate * HZ))
|
|
{
|
|
conf->out_speed = priv->out_bytes / conf->measure_rate;
|
|
priv->out_bytes = 0;
|
|
priv->out_time = jiffies;
|
|
}
|
|
if (time_after(jiffies, priv->out_time10 + conf->measure_rate * 10*HZ))
|
|
{
|
|
conf->out_speed10 = priv->out_bytes10 / (10 * conf->measure_rate);
|
|
priv->out_bytes10 = 0;
|
|
priv->out_time10 = jiffies;
|
|
}
|
|
if (TXHEAD(dev).offset && TXTAIL(dev).offset)
|
|
{
|
|
netif_stop_queue (dev);
|
|
return 0;
|
|
}
|
|
else
|
|
netif_start_queue (dev);
|
|
|
|
|
|
IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
|
|
printk(KERN_WARNING "%s Transmit t %2x:%2x:%2x:%2x:%2x:%2x f %2x:%2x:%2x:%2x:%2x:%2x \n", dev->name,
|
|
(unsigned char) buf[0], (unsigned char) buf[1], (unsigned char) buf[2], (unsigned char) buf[3],
|
|
(unsigned char) buf[4], (unsigned char) buf[5], (unsigned char) buf[6], (unsigned char) buf[7],
|
|
(unsigned char) buf[8], (unsigned char) buf[9], (unsigned char) buf[10], (unsigned char) buf[11]);
|
|
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "TX command prepare for buffer %d\n", priv->txLast);
|
|
|
|
arlan_command(dev, ARLAN_COMMAND_TX);
|
|
|
|
priv->tx_last_sent = jiffies;
|
|
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("%s TX Qued %d bytes \n", dev->name, length);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_hw_tx");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int arlan_hw_config(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_hw_config");
|
|
|
|
printk(KERN_NOTICE "%s arlan configure called \n", dev->name);
|
|
if (arlan_EEPROM_bad)
|
|
printk(KERN_NOTICE "arlan configure with eeprom bad option \n");
|
|
|
|
|
|
WRITESHM(arlan->spreadingCode, conf->spreadingCode, u_char);
|
|
WRITESHM(arlan->channelSet, conf->channelSet, u_char);
|
|
|
|
if (arlan_EEPROM_bad)
|
|
WRITESHM(arlan->defaultChannelSet, conf->channelSet, u_char);
|
|
|
|
WRITESHM(arlan->channelNumber, conf->channelNumber, u_char);
|
|
|
|
WRITESHM(arlan->scramblingDisable, conf->scramblingDisable, u_char);
|
|
WRITESHM(arlan->txAttenuation, conf->txAttenuation, u_char);
|
|
|
|
WRITESHM(arlan->systemId, conf->systemId, u_int);
|
|
|
|
WRITESHM(arlan->maxRetries, conf->maxRetries, u_char);
|
|
WRITESHM(arlan->receiveMode, conf->receiveMode, u_char);
|
|
WRITESHM(arlan->priority, conf->priority, u_char);
|
|
WRITESHM(arlan->rootOrRepeater, conf->rootOrRepeater, u_char);
|
|
WRITESHM(arlan->SID, conf->SID, u_int);
|
|
|
|
WRITESHM(arlan->registrationMode, conf->registrationMode, u_char);
|
|
|
|
WRITESHM(arlan->registrationFill, conf->registrationFill, u_char);
|
|
WRITESHM(arlan->localTalkAddress, conf->localTalkAddress, u_char);
|
|
WRITESHM(arlan->codeFormat, conf->codeFormat, u_char);
|
|
WRITESHM(arlan->numChannels, conf->numChannels, u_char);
|
|
WRITESHM(arlan->channel1, conf->channel1, u_char);
|
|
WRITESHM(arlan->channel2, conf->channel2, u_char);
|
|
WRITESHM(arlan->channel3, conf->channel3, u_char);
|
|
WRITESHM(arlan->channel4, conf->channel4, u_char);
|
|
WRITESHM(arlan->radioNodeId, conf->radioNodeId, u_short);
|
|
WRITESHM(arlan->SID, conf->SID, u_int);
|
|
WRITESHM(arlan->waitTime, conf->waitTime, u_short);
|
|
WRITESHM(arlan->lParameter, conf->lParameter, u_short);
|
|
memcpy_toio(&(arlan->_15), &(conf->_15), 3);
|
|
WRITESHM(arlan->_15, conf->_15, u_short);
|
|
WRITESHM(arlan->headerSize, conf->headerSize, u_short);
|
|
if (arlan_EEPROM_bad)
|
|
WRITESHM(arlan->hardwareType, conf->hardwareType, u_char);
|
|
WRITESHM(arlan->radioType, conf->radioType, u_char);
|
|
if (arlan_EEPROM_bad)
|
|
WRITESHM(arlan->radioModule, conf->radioType, u_char);
|
|
|
|
memcpy_toio(arlan->encryptionKey + keyStart, encryptionKey, 8);
|
|
memcpy_toio(arlan->name, conf->siteName, 16);
|
|
|
|
WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_CONF); /* do configure */
|
|
memset_io(arlan->commandParameter, 0, 0xf); /* 0xf */
|
|
memset_io(arlan->commandParameter + 1, 0, 2);
|
|
if (conf->writeEEPROM)
|
|
{
|
|
memset_io(arlan->commandParameter, conf->writeEEPROM, 1);
|
|
// conf->writeEEPROM=0;
|
|
}
|
|
if (conf->registrationMode && conf->registrationInterrupts)
|
|
memset_io(arlan->commandParameter + 3, 1, 1);
|
|
else
|
|
memset_io(arlan->commandParameter + 3, 0, 1);
|
|
|
|
priv->irq_test_done = 0;
|
|
|
|
if (conf->tx_queue_len)
|
|
dev->tx_queue_len = conf->tx_queue_len;
|
|
udelay(100);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_hw_config");
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int arlan_read_card_configuration(struct net_device *dev)
|
|
{
|
|
u_char tlx415;
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_read_card_configuration");
|
|
|
|
if (radioNodeId == radioNodeIdUNKNOWN)
|
|
{
|
|
READSHM(conf->radioNodeId, arlan->radioNodeId, u_short);
|
|
}
|
|
else
|
|
conf->radioNodeId = radioNodeId;
|
|
|
|
if (SID == SIDUNKNOWN)
|
|
{
|
|
READSHM(conf->SID, arlan->SID, u_int);
|
|
}
|
|
else conf->SID = SID;
|
|
|
|
if (spreadingCode == spreadingCodeUNKNOWN)
|
|
{
|
|
READSHM(conf->spreadingCode, arlan->spreadingCode, u_char);
|
|
}
|
|
else
|
|
conf->spreadingCode = spreadingCode;
|
|
|
|
if (channelSet == channelSetUNKNOWN)
|
|
{
|
|
READSHM(conf->channelSet, arlan->channelSet, u_char);
|
|
}
|
|
else conf->channelSet = channelSet;
|
|
|
|
if (channelNumber == channelNumberUNKNOWN)
|
|
{
|
|
READSHM(conf->channelNumber, arlan->channelNumber, u_char);
|
|
}
|
|
else conf->channelNumber = channelNumber;
|
|
|
|
READSHM(conf->scramblingDisable, arlan->scramblingDisable, u_char);
|
|
READSHM(conf->txAttenuation, arlan->txAttenuation, u_char);
|
|
|
|
if (systemId == systemIdUNKNOWN)
|
|
{
|
|
READSHM(conf->systemId, arlan->systemId, u_int);
|
|
}
|
|
else conf->systemId = systemId;
|
|
|
|
READSHM(conf->maxDatagramSize, arlan->maxDatagramSize, u_short);
|
|
READSHM(conf->maxFrameSize, arlan->maxFrameSize, u_short);
|
|
READSHM(conf->maxRetries, arlan->maxRetries, u_char);
|
|
READSHM(conf->receiveMode, arlan->receiveMode, u_char);
|
|
READSHM(conf->priority, arlan->priority, u_char);
|
|
READSHM(conf->rootOrRepeater, arlan->rootOrRepeater, u_char);
|
|
|
|
if (SID == SIDUNKNOWN)
|
|
{
|
|
READSHM(conf->SID, arlan->SID, u_int);
|
|
}
|
|
else conf->SID = SID;
|
|
|
|
if (registrationMode == registrationModeUNKNOWN)
|
|
{
|
|
READSHM(conf->registrationMode, arlan->registrationMode, u_char);
|
|
}
|
|
else conf->registrationMode = registrationMode;
|
|
|
|
READSHM(conf->registrationFill, arlan->registrationFill, u_char);
|
|
READSHM(conf->localTalkAddress, arlan->localTalkAddress, u_char);
|
|
READSHM(conf->codeFormat, arlan->codeFormat, u_char);
|
|
READSHM(conf->numChannels, arlan->numChannels, u_char);
|
|
READSHM(conf->channel1, arlan->channel1, u_char);
|
|
READSHM(conf->channel2, arlan->channel2, u_char);
|
|
READSHM(conf->channel3, arlan->channel3, u_char);
|
|
READSHM(conf->channel4, arlan->channel4, u_char);
|
|
READSHM(conf->waitTime, arlan->waitTime, u_short);
|
|
READSHM(conf->lParameter, arlan->lParameter, u_short);
|
|
READSHM(conf->_15, arlan->_15, u_short);
|
|
READSHM(conf->headerSize, arlan->headerSize, u_short);
|
|
READSHM(conf->hardwareType, arlan->hardwareType, u_char);
|
|
READSHM(conf->radioType, arlan->radioModule, u_char);
|
|
|
|
if (conf->radioType == 0)
|
|
conf->radioType = 0xc;
|
|
|
|
WRITESHM(arlan->configStatus, 0xA5, u_char);
|
|
READSHM(tlx415, arlan->configStatus, u_char);
|
|
|
|
if (tlx415 != 0xA5)
|
|
printk(KERN_INFO "%s tlx415 chip \n", dev->name);
|
|
|
|
conf->txClear = 0;
|
|
conf->txRetries = 1;
|
|
conf->txRouting = 1;
|
|
conf->txScrambled = 0;
|
|
conf->rxParameter = 1;
|
|
conf->txTimeoutMs = 4000;
|
|
conf->waitCardTimeout = 100000;
|
|
conf->receiveMode = ARLAN_RCV_CLEAN;
|
|
memcpy_fromio(conf->siteName, arlan->name, 16);
|
|
conf->siteName[16] = '\0';
|
|
conf->retries = retries;
|
|
conf->tx_delay_ms = tx_delay_ms;
|
|
conf->ReTransmitPacketMaxSize = 200;
|
|
conf->waitReTransmitPacketMaxSize = 200;
|
|
conf->txAckTimeoutMs = 900;
|
|
conf->fastReTransCount = 3;
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_read_card_configuration");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int lastFoundAt = 0xbe000;
|
|
|
|
|
|
/*
|
|
* This is the real probe routine. Linux has a history of friendly device
|
|
* probes on the ISA bus. A good device probes avoids doing writes, and
|
|
* verifies that the correct device exists and functions.
|
|
*/
|
|
#define ARLAN_SHMEM_SIZE 0x2000
|
|
static int __init arlan_check_fingerprint(unsigned long memaddr)
|
|
{
|
|
static const char probeText[] = "TELESYSTEM SLW INC. ARLAN \0";
|
|
volatile struct arlan_shmem __iomem *arlan = (struct arlan_shmem *) memaddr;
|
|
unsigned long paddr = virt_to_phys((void *) memaddr);
|
|
char tempBuf[49];
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_check_fingerprint");
|
|
|
|
if (!request_mem_region(paddr, ARLAN_SHMEM_SIZE, "arlan")) {
|
|
// printk(KERN_WARNING "arlan: memory region %lx excluded from probing \n",paddr);
|
|
return -ENODEV;
|
|
}
|
|
|
|
memcpy_fromio(tempBuf, arlan->textRegion, 29);
|
|
tempBuf[30] = 0;
|
|
|
|
/* check for card at this address */
|
|
if (0 != strncmp(tempBuf, probeText, 29)){
|
|
release_mem_region(paddr, ARLAN_SHMEM_SIZE);
|
|
return -ENODEV;
|
|
}
|
|
|
|
// printk(KERN_INFO "arlan found at 0x%x \n",memaddr);
|
|
ARLAN_DEBUG_EXIT("arlan_check_fingerprint");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int arlan_change_mtu(struct net_device *dev, int new_mtu)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_change_mtu");
|
|
if (new_mtu > 2032)
|
|
return -EINVAL;
|
|
dev->mtu = new_mtu;
|
|
if (new_mtu < 256)
|
|
new_mtu = 256; /* cards book suggests 1600 */
|
|
conf->maxDatagramSize = new_mtu;
|
|
conf->maxFrameSize = new_mtu + 48;
|
|
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
|
|
printk(KERN_NOTICE "%s mtu changed to %d \n", dev->name, new_mtu);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_change_mtu");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int arlan_mac_addr(struct net_device *dev, void *p)
|
|
{
|
|
struct sockaddr *addr = p;
|
|
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_mac_addr");
|
|
return -EINVAL;
|
|
|
|
if (!netif_running(dev))
|
|
return -EBUSY;
|
|
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_mac_addr");
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
static int __init arlan_setup_device(struct net_device *dev, int num)
|
|
{
|
|
struct arlan_private *ap = netdev_priv(dev);
|
|
int err;
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_setup_device");
|
|
|
|
ap->conf = (struct arlan_shmem *)(ap+1);
|
|
|
|
dev->tx_queue_len = tx_queue_len;
|
|
dev->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;
|
|
|
|
ap->irq_test_done = 0;
|
|
ap->Conf = &arlan_conf[num];
|
|
|
|
ap->Conf->pre_Command_Wait = 40;
|
|
ap->Conf->rx_tweak1 = 30;
|
|
ap->Conf->rx_tweak2 = 0;
|
|
|
|
|
|
err = register_netdev(dev);
|
|
if (err) {
|
|
release_mem_region(virt_to_phys((void *) dev->mem_start),
|
|
ARLAN_SHMEM_SIZE);
|
|
free_netdev(dev);
|
|
return err;
|
|
}
|
|
arlan_device[num] = dev;
|
|
ARLAN_DEBUG_EXIT("arlan_setup_device");
|
|
return 0;
|
|
}
|
|
|
|
static int __init arlan_probe_here(struct net_device *dev,
|
|
unsigned long memaddr)
|
|
{
|
|
struct arlan_private *ap = netdev_priv(dev);
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_probe_here");
|
|
|
|
if (arlan_check_fingerprint(memaddr))
|
|
return -ENODEV;
|
|
|
|
printk(KERN_NOTICE "%s: Arlan found at %x, \n ", dev->name,
|
|
(int) virt_to_phys((void*)memaddr));
|
|
|
|
ap->card = (void *) memaddr;
|
|
dev->mem_start = memaddr;
|
|
dev->mem_end = memaddr + ARLAN_SHMEM_SIZE-1;
|
|
|
|
if (dev->irq < 2)
|
|
{
|
|
READSHM(dev->irq, ap->card->irqLevel, u_char);
|
|
} else if (dev->irq == 2)
|
|
dev->irq = 9;
|
|
|
|
arlan_read_card_configuration(dev);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_probe_here");
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int arlan_open(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
|
int ret = 0;
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_open");
|
|
|
|
ret = request_irq(dev->irq, &arlan_interrupt, 0, dev->name, dev);
|
|
if (ret)
|
|
{
|
|
printk(KERN_ERR "%s: unable to get IRQ %d .\n",
|
|
dev->name, dev->irq);
|
|
return ret;
|
|
}
|
|
|
|
|
|
priv->bad = 0;
|
|
priv->lastReset = 0;
|
|
priv->reset = 0;
|
|
memcpy_fromio(dev->dev_addr, arlan->lanCardNodeId, 6);
|
|
memset(dev->broadcast, 0xff, 6);
|
|
dev->tx_queue_len = tx_queue_len;
|
|
priv->interrupt_processing_active = 0;
|
|
spin_lock_init(&priv->lock);
|
|
|
|
netif_start_queue (dev);
|
|
|
|
priv->registrationLostCount = 0;
|
|
priv->registrationLastSeen = jiffies;
|
|
priv->txLast = 0;
|
|
priv->tx_command_given = 0;
|
|
priv->rx_command_given = 0;
|
|
|
|
priv->reRegisterExp = 1;
|
|
priv->tx_last_sent = jiffies - 1;
|
|
priv->tx_last_cleared = jiffies;
|
|
priv->Conf->writeEEPROM = 0;
|
|
priv->Conf->registrationInterrupts = 1;
|
|
|
|
init_timer(&priv->timer);
|
|
priv->timer.expires = jiffies + HZ / 10;
|
|
priv->timer.data = (unsigned long) dev;
|
|
priv->timer.function = &arlan_registration_timer; /* timer handler */
|
|
|
|
arlan_command(dev, ARLAN_COMMAND_POWERUP | ARLAN_COMMAND_LONG_WAIT_NOW);
|
|
mdelay(200);
|
|
add_timer(&priv->timer);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_open");
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void arlan_tx_timeout (struct net_device *dev)
|
|
{
|
|
printk(KERN_ERR "%s: arlan transmit timed out, kernel decided\n", dev->name);
|
|
/* Try to restart the adaptor. */
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
|
|
// dev->trans_start = jiffies;
|
|
// netif_start_queue (dev);
|
|
}
|
|
|
|
|
|
static int arlan_tx(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
short length;
|
|
unsigned char *buf;
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_tx");
|
|
|
|
length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
|
|
buf = skb->data;
|
|
|
|
if (length + 0x12 > 0x800) {
|
|
printk(KERN_ERR "TX RING overflow \n");
|
|
netif_stop_queue (dev);
|
|
}
|
|
|
|
if (arlan_hw_tx(dev, buf, length) == -1)
|
|
goto bad_end;
|
|
|
|
dev->trans_start = jiffies;
|
|
|
|
dev_kfree_skb(skb);
|
|
|
|
arlan_process_interrupt(dev);
|
|
ARLAN_DEBUG_EXIT("arlan_tx");
|
|
return 0;
|
|
|
|
bad_end:
|
|
arlan_process_interrupt(dev);
|
|
netif_stop_queue (dev);
|
|
ARLAN_DEBUG_EXIT("arlan_tx");
|
|
return 1;
|
|
}
|
|
|
|
|
|
static inline int DoNotReTransmitCrap(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
|
|
if (TXLAST(dev).length < priv->Conf->ReTransmitPacketMaxSize)
|
|
return 1;
|
|
return 0;
|
|
|
|
}
|
|
|
|
static inline int DoNotWaitReTransmitCrap(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
|
|
if (TXLAST(dev).length < priv->Conf->waitReTransmitPacketMaxSize)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static inline void arlan_queue_retransmit(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_queue_retransmit");
|
|
|
|
if (DoNotWaitReTransmitCrap(dev))
|
|
{
|
|
arlan_drop_tx(dev);
|
|
} else
|
|
priv->ReTransmitRequested++;
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_queue_retransmit");
|
|
}
|
|
|
|
static inline void RetryOrFail(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
|
|
ARLAN_DEBUG_ENTRY("RetryOrFail");
|
|
|
|
if (priv->retransmissions > priv->Conf->retries ||
|
|
DoNotReTransmitCrap(dev))
|
|
{
|
|
arlan_drop_tx(dev);
|
|
}
|
|
else if (priv->bad <= priv->Conf->fastReTransCount)
|
|
{
|
|
arlan_retransmit_now(dev);
|
|
}
|
|
else arlan_queue_retransmit(dev);
|
|
|
|
ARLAN_DEBUG_EXIT("RetryOrFail");
|
|
}
|
|
|
|
|
|
static void arlan_tx_done_interrupt(struct net_device *dev, int status)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_tx_done_interrupt");
|
|
|
|
priv->tx_last_cleared = jiffies;
|
|
priv->tx_command_given = 0;
|
|
switch (status)
|
|
{
|
|
case 1:
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk("arlan intr: transmit OK\n");
|
|
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)
|
|
{
|
|
netif_wake_queue (dev);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 2:
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk("arlan intr: transmit timed out\n");
|
|
priv->bad += 1;
|
|
//arlan_queue_retransmit(dev);
|
|
RetryOrFail(dev);
|
|
}
|
|
break;
|
|
|
|
case 3:
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk("arlan intr: transmit max retries\n");
|
|
priv->bad += 1;
|
|
priv->reset = 0;
|
|
//arlan_queue_retransmit(dev);
|
|
RetryOrFail(dev);
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk("arlan intr: transmit aborted\n");
|
|
priv->bad += 1;
|
|
arlan_queue_retransmit(dev);
|
|
//RetryOrFail(dev);
|
|
}
|
|
break;
|
|
|
|
case 5:
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk("arlan intr: transmit not registered\n");
|
|
priv->bad += 1;
|
|
//debug=101;
|
|
arlan_queue_retransmit(dev);
|
|
}
|
|
break;
|
|
|
|
case 6:
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk("arlan intr: transmit destination full\n");
|
|
priv->bad += 1;
|
|
priv->reset = 0;
|
|
//arlan_drop_tx(dev);
|
|
arlan_queue_retransmit(dev);
|
|
}
|
|
break;
|
|
|
|
case 7:
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk("arlan intr: transmit unknown ack\n");
|
|
priv->bad += 1;
|
|
priv->reset = 0;
|
|
arlan_queue_retransmit(dev);
|
|
}
|
|
break;
|
|
|
|
case 8:
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk("arlan intr: transmit dest mail box full\n");
|
|
priv->bad += 1;
|
|
priv->reset = 0;
|
|
//arlan_drop_tx(dev);
|
|
arlan_queue_retransmit(dev);
|
|
}
|
|
break;
|
|
|
|
case 9:
|
|
{
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
|
printk("arlan intr: transmit root dest not reg.\n");
|
|
priv->bad += 1;
|
|
priv->reset = 1;
|
|
//arlan_drop_tx(dev);
|
|
arlan_queue_retransmit(dev);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
{
|
|
printk(KERN_ERR "arlan intr: transmit status unknown\n");
|
|
priv->bad += 1;
|
|
priv->reset = 1;
|
|
arlan_drop_tx(dev);
|
|
}
|
|
}
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_tx_done_interrupt");
|
|
}
|
|
|
|
|
|
static void arlan_rx_interrupt(struct net_device *dev, u_char rxStatus, u_short rxOffset, u_short pkt_len)
|
|
{
|
|
char *skbtmp;
|
|
int i = 0;
|
|
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
|
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_rx_interrupt");
|
|
// by spec, not WRITESHMB(arlan->rxStatus,0x00);
|
|
// prohibited here arlan_command(dev, ARLAN_COMMAND_RX);
|
|
|
|
if (pkt_len < 10 || pkt_len > 2048)
|
|
{
|
|
printk(KERN_WARNING "%s: got too short or long packet, len %d \n", dev->name, pkt_len);
|
|
return;
|
|
}
|
|
if (rxOffset + pkt_len > 0x2000)
|
|
{
|
|
printk("%s: got too long packet, len %d offset %x\n", dev->name, pkt_len, rxOffset);
|
|
return;
|
|
}
|
|
priv->in_bytes += pkt_len;
|
|
priv->in_bytes10 += pkt_len;
|
|
if (conf->measure_rate < 1)
|
|
conf->measure_rate = 1;
|
|
if (time_after(jiffies, priv->in_time + conf->measure_rate * HZ))
|
|
{
|
|
conf->in_speed = priv->in_bytes / conf->measure_rate;
|
|
priv->in_bytes = 0;
|
|
priv->in_time = jiffies;
|
|
}
|
|
if (time_after(jiffies, priv->in_time10 + conf->measure_rate * 10*HZ))
|
|
{
|
|
conf->in_speed10 = priv->in_bytes10 / (10 * conf->measure_rate);
|
|
priv->in_bytes10 = 0;
|
|
priv->in_time10 = jiffies;
|
|
}
|
|
DEBUGSHM(1, "arlan rcv pkt rxStatus= %d ", arlan->rxStatus, u_char);
|
|
switch (rxStatus)
|
|
{
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
{
|
|
/* Malloc up new buffer. */
|
|
struct sk_buff *skb;
|
|
|
|
DEBUGSHM(50, "arlan recv pkt offs=%d\n", arlan->rxOffset, u_short);
|
|
DEBUGSHM(1, "arlan rxFrmType = %d \n", arlan->rxFrmType, u_char);
|
|
DEBUGSHM(1, KERN_INFO "arlan rx scrambled = %d \n", arlan->scrambled, u_char);
|
|
|
|
/* here we do multicast filtering to avoid slow 8-bit memcopy */
|
|
#ifdef ARLAN_MULTICAST
|
|
if (!(dev->flags & IFF_ALLMULTI) &&
|
|
!(dev->flags & IFF_PROMISC) &&
|
|
dev->mc_list)
|
|
{
|
|
char hw_dst_addr[6];
|
|
struct dev_mc_list *dmi = dev->mc_list;
|
|
int i;
|
|
|
|
memcpy_fromio(hw_dst_addr, arlan->ultimateDestAddress, 6);
|
|
if (hw_dst_addr[0] == 0x01)
|
|
{
|
|
if (mdebug)
|
|
if (hw_dst_addr[1] == 0x00)
|
|
printk(KERN_ERR "%s mcast 0x0100 \n", dev->name);
|
|
else if (hw_dst_addr[1] == 0x40)
|
|
printk(KERN_ERR "%s m/bcast 0x0140 \n", dev->name);
|
|
while (dmi)
|
|
{ if (dmi->dmi_addrlen == 6)
|
|
{
|
|
if (arlan_debug & ARLAN_DEBUG_HEADER_DUMP)
|
|
printk(KERN_ERR "%s mcl %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 __iomem *) arlan) + rxOffset, pkt_len - ARLAN_FAKE_HDR_LEN);
|
|
memcpy_fromio(skbtmp, arlan->ultimateDestAddress, 6);
|
|
memcpy_fromio(skbtmp + 6, arlan->rxSrc, 6);
|
|
WRITESHMB(arlan->rxStatus, 0x00);
|
|
arlan_command(dev, ARLAN_COMMAND_RX);
|
|
|
|
IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
|
|
{
|
|
char immedDestAddress[6];
|
|
char immedSrcAddress[6];
|
|
memcpy_fromio(immedDestAddress, arlan->immedDestAddress, 6);
|
|
memcpy_fromio(immedSrcAddress, arlan->immedSrcAddress, 6);
|
|
|
|
printk(KERN_WARNING "%s t %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 = netdev_priv(dev);
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
|
u_char rxStatus = READSHMB(arlan->rxStatus);
|
|
u_char txStatus = READSHMB(arlan->txStatus);
|
|
u_short rxOffset = READSHMS(arlan->rxOffset);
|
|
u_short pkt_len = READSHMS(arlan->rxLength);
|
|
int interrupt_count = 0;
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_process_interrupt");
|
|
|
|
if (test_and_set_bit(0, (void *) &priv->interrupt_processing_active))
|
|
{
|
|
if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
|
|
printk(KERN_ERR "interrupt chain reentering \n");
|
|
goto end_int_process;
|
|
}
|
|
while ((rxStatus || txStatus || priv->interrupt_ack_requested)
|
|
&& (interrupt_count < 5))
|
|
{
|
|
if (rxStatus)
|
|
priv->last_rx_int_ack_time = jiffies;
|
|
|
|
arlan_command(dev, ARLAN_COMMAND_INT_ACK);
|
|
arlan_command(dev, ARLAN_COMMAND_INT_ENABLE);
|
|
|
|
IFDEBUG(ARLAN_DEBUG_INTERRUPT)
|
|
printk(KERN_ERR "%s: got IRQ rx %x tx %x comm %x rxOff %x rxLen %x \n",
|
|
dev->name, rxStatus, txStatus, READSHMB(arlan->commandByte),
|
|
rxOffset, pkt_len);
|
|
|
|
if (rxStatus == 0 && txStatus == 0)
|
|
{
|
|
if (priv->irq_test_done)
|
|
{
|
|
if (!registrationBad(dev))
|
|
IFDEBUG(ARLAN_DEBUG_INTERRUPT) printk(KERN_ERR "%s unknown interrupt(nop? regLost ?) reason tx %d rx %d ",
|
|
dev->name, txStatus, rxStatus);
|
|
} else {
|
|
IFDEBUG(ARLAN_DEBUG_INTERRUPT)
|
|
printk(KERN_INFO "%s irq $%d test OK \n", dev->name, dev->irq);
|
|
|
|
}
|
|
priv->interrupt_ack_requested = 0;
|
|
goto ends;
|
|
}
|
|
if (txStatus != 0)
|
|
{
|
|
WRITESHMB(arlan->txStatus, 0x00);
|
|
arlan_tx_done_interrupt(dev, txStatus);
|
|
goto ends;
|
|
}
|
|
if (rxStatus == 1 || rxStatus == 2)
|
|
{ /* a packet waiting */
|
|
arlan_rx_interrupt(dev, rxStatus, rxOffset, pkt_len);
|
|
goto ends;
|
|
}
|
|
if (rxStatus > 2 && rxStatus < 0xff)
|
|
{
|
|
WRITESHMB(arlan->rxStatus, 0x00);
|
|
printk(KERN_ERR "%s unknown rxStatus reason tx %d rx %d ",
|
|
dev->name, txStatus, rxStatus);
|
|
goto ends;
|
|
}
|
|
if (rxStatus == 0xff)
|
|
{
|
|
WRITESHMB(arlan->rxStatus, 0x00);
|
|
arlan_command(dev, ARLAN_COMMAND_RX);
|
|
if (registrationBad(dev))
|
|
netif_device_detach(dev);
|
|
if (!registrationBad(dev))
|
|
{
|
|
priv->registrationLastSeen = jiffies;
|
|
if (!netif_queue_stopped(dev) && !priv->under_reset && !priv->under_config)
|
|
netif_wake_queue (dev);
|
|
}
|
|
goto ends;
|
|
}
|
|
ends:
|
|
|
|
arlan_command_process(dev);
|
|
|
|
rxStatus = READSHMB(arlan->rxStatus);
|
|
txStatus = READSHMB(arlan->txStatus);
|
|
rxOffset = READSHMS(arlan->rxOffset);
|
|
pkt_len = READSHMS(arlan->rxLength);
|
|
|
|
|
|
priv->irq_test_done = 1;
|
|
|
|
interrupt_count++;
|
|
}
|
|
priv->interrupt_processing_active = 0;
|
|
|
|
end_int_process:
|
|
arlan_command_process(dev);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_process_interrupt");
|
|
return;
|
|
}
|
|
|
|
static irqreturn_t arlan_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|
{
|
|
struct net_device *dev = dev_id;
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
|
u_char rxStatus = READSHMB(arlan->rxStatus);
|
|
u_char txStatus = READSHMB(arlan->txStatus);
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_interrupt");
|
|
|
|
|
|
if (!rxStatus && !txStatus)
|
|
priv->interrupt_ack_requested++;
|
|
|
|
arlan_process_interrupt(dev);
|
|
|
|
priv->irq_test_done = 1;
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_interrupt");
|
|
return IRQ_HANDLED;
|
|
|
|
}
|
|
|
|
|
|
static int arlan_close(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_close");
|
|
|
|
del_timer_sync(&priv->timer);
|
|
|
|
arlan_command(dev, ARLAN_COMMAND_POWERDOWN);
|
|
|
|
IFDEBUG(ARLAN_DEBUG_STARTUP)
|
|
printk(KERN_NOTICE "%s: Closing device\n", dev->name);
|
|
|
|
netif_stop_queue(dev);
|
|
free_irq(dev->irq, dev);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_close");
|
|
return 0;
|
|
}
|
|
|
|
#ifdef ARLAN_DEBUGGING
|
|
static long alignLong(volatile u_char * ptr)
|
|
{
|
|
long ret;
|
|
memcpy_fromio(&ret, (void *) ptr, 4);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Get the current statistics.
|
|
* This may be called with the card open or closed.
|
|
*/
|
|
|
|
static struct net_device_stats *arlan_statistics(struct net_device *dev)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
|
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_statistics");
|
|
|
|
/* Update the statistics from the device registers. */
|
|
|
|
READSHM(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)
|
|
{
|
|
struct arlan_private *priv = netdev_priv(dev);
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
|
int board_conf_needed = 0;
|
|
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_set_multicast");
|
|
|
|
if (dev->flags & IFF_PROMISC)
|
|
{
|
|
unsigned char recMode;
|
|
READSHM(recMode, arlan->receiveMode, u_char);
|
|
conf->receiveMode = (ARLAN_RCV_PROMISC | ARLAN_RCV_CONTROL);
|
|
if (conf->receiveMode != recMode)
|
|
board_conf_needed = 1;
|
|
}
|
|
else
|
|
{
|
|
/* turn off promiscuous mode */
|
|
unsigned char recMode;
|
|
READSHM(recMode, arlan->receiveMode, u_char);
|
|
conf->receiveMode = ARLAN_RCV_CLEAN | ARLAN_RCV_CONTROL;
|
|
if (conf->receiveMode != recMode)
|
|
board_conf_needed = 1;
|
|
}
|
|
if (board_conf_needed)
|
|
arlan_command(dev, ARLAN_COMMAND_CONF);
|
|
|
|
ARLAN_DEBUG_EXIT("arlan_set_multicast");
|
|
}
|
|
|
|
|
|
struct net_device * __init arlan_probe(int unit)
|
|
{
|
|
struct net_device *dev;
|
|
int err;
|
|
int m;
|
|
|
|
ARLAN_DEBUG_ENTRY("arlan_probe");
|
|
|
|
if (arlans_found == MAX_ARLANS)
|
|
return ERR_PTR(-ENODEV);
|
|
|
|
/*
|
|
* Reserve space for local data and a copy of the shared memory
|
|
* that is used by the /proc interface.
|
|
*/
|
|
dev = alloc_etherdev(sizeof(struct arlan_private)
|
|
+ sizeof(struct arlan_shmem));
|
|
if (!dev)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
SET_MODULE_OWNER(dev);
|
|
|
|
if (unit >= 0) {
|
|
sprintf(dev->name, "eth%d", unit);
|
|
netdev_boot_setup_check(dev);
|
|
|
|
if (dev->mem_start) {
|
|
if (arlan_probe_here(dev, dev->mem_start) == 0)
|
|
goto found;
|
|
goto not_found;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
for (m = (int)phys_to_virt(lastFoundAt) + ARLAN_SHMEM_SIZE;
|
|
m <= (int)phys_to_virt(0xDE000);
|
|
m += ARLAN_SHMEM_SIZE)
|
|
{
|
|
if (arlan_probe_here(dev, m) == 0)
|
|
{
|
|
lastFoundAt = (int)virt_to_phys((void*)m);
|
|
goto found;
|
|
}
|
|
}
|
|
|
|
if (lastFoundAt == 0xbe000)
|
|
printk(KERN_ERR "arlan: No Arlan devices found \n");
|
|
|
|
not_found:
|
|
free_netdev(dev);
|
|
return ERR_PTR(-ENODEV);
|
|
|
|
found:
|
|
err = arlan_setup_device(dev, arlans_found);
|
|
if (err)
|
|
dev = ERR_PTR(err);
|
|
else if (!arlans_found++)
|
|
printk(KERN_INFO "Arlan driver %s\n", arlan_version);
|
|
|
|
return dev;
|
|
}
|
|
|
|
#ifdef MODULE
|
|
int init_module(void)
|
|
{
|
|
int i = 0;
|
|
|
|
ARLAN_DEBUG_ENTRY("init_module");
|
|
|
|
if (channelSet != channelSetUNKNOWN || channelNumber != channelNumberUNKNOWN || systemId != systemIdUNKNOWN)
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < MAX_ARLANS; i++) {
|
|
struct net_device *dev = arlan_probe(i);
|
|
|
|
if (IS_ERR(dev))
|
|
return PTR_ERR(dev);
|
|
}
|
|
init_arlan_proc();
|
|
printk(KERN_INFO "Arlan driver %s\n", arlan_version);
|
|
ARLAN_DEBUG_EXIT("init_module");
|
|
return 0;
|
|
}
|
|
|
|
|
|
void cleanup_module(void)
|
|
{
|
|
int i = 0;
|
|
struct net_device *dev;
|
|
|
|
ARLAN_DEBUG_ENTRY("cleanup_module");
|
|
|
|
IFDEBUG(ARLAN_DEBUG_SHUTDOWN)
|
|
printk(KERN_INFO "arlan: unloading module\n");
|
|
|
|
cleanup_arlan_proc();
|
|
|
|
for (i = 0; i < MAX_ARLANS; i++)
|
|
{
|
|
dev = arlan_device[i];
|
|
if (dev) {
|
|
arlan_command(dev, ARLAN_COMMAND_POWERDOWN );
|
|
|
|
unregister_netdev(dev);
|
|
release_mem_region(virt_to_phys((void *) dev->mem_start),
|
|
ARLAN_SHMEM_SIZE);
|
|
free_netdev(dev);
|
|
arlan_device[i] = NULL;
|
|
}
|
|
}
|
|
|
|
ARLAN_DEBUG_EXIT("cleanup_module");
|
|
}
|
|
|
|
|
|
#endif
|
|
MODULE_LICENSE("GPL");
|