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62 |
marcus.erl |
/*
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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 "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 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(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_named(debug, 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_named(EEPROM_bad, arlan_EEPROM_bad, int, 0);
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MODULE_PARM_DESC(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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static int arlan_entry_debug;
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static int arlan_exit_debug;
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static int arlan_entry_and_exit_debug;
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module_param_named(entry_debug, arlan_entry_debug, int, 0);
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module_param_named(exit_debug, arlan_exit_debug, int, 0);
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module_param_named(entry_and_exit_debug, arlan_entry_and_exit_debug, int, 0);
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MODULE_PARM_DESC(entry_debug, "Arlan driver function entry debugging");
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MODULE_PARM_DESC(exit_debug, "Arlan driver function exit debugging");
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MODULE_PARM_DESC(entry_and_exit_debug, "Arlan driver function entry and exit debugging");
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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);
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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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| 93 |
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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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| 118 |
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| 119 |
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| 120 |
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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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| 124 |
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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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| 128 |
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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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| 131 |
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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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| 183 |
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/* Card access serializing lock */
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spin_lock_irqsave(&priv->lock, flags);
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| 186 |
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/* Check cards status and waiting */
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| 187 |
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| 188 |
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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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| 190 |
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while (priv->waiting_command_mask & (ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW))
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| 191 |
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{
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| 192 |
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if (READSHMB(arlan->resetFlag) ||
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| 193 |
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READSHMB(arlan->commandByte)) /* ||
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| 194 |
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(readControlRegister(dev) & ARLAN_ACCESS))
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| 195 |
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*/
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| 196 |
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udelay(40);
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else
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| 198 |
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priv->waiting_command_mask &= ~(ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW);
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| 199 |
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| 200 |
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udelayed++;
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| 202 |
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if (priv->waiting_command_mask & ARLAN_COMMAND_LONG_WAIT_NOW)
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{
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| 204 |
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if (udelayed * 40 > 1000000)
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| 205 |
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{
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| 206 |
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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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| 208 |
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break;
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| 209 |
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}
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| 210 |
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}
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| 211 |
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else if (priv->waiting_command_mask & ARLAN_COMMAND_WAIT_NOW)
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| 212 |
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{
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| 213 |
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if (udelayed * 40 > 1000)
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| 214 |
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{
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| 215 |
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printk(KERN_ERR "%s short wait too long \n", dev->name);
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| 216 |
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goto bad_end;
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| 217 |
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}
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| 218 |
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}
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| 219 |
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}
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| 220 |
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}
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| 221 |
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else
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| 222 |
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{
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| 223 |
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i = 0;
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| 224 |
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while ((READSHMB(arlan->resetFlag) ||
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| 225 |
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READSHMB(arlan->commandByte)) &&
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| 226 |
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conf->pre_Command_Wait > (i++) * 10)
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| 227 |
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udelay(10);
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| 228 |
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| 229 |
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| 230 |
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if ((READSHMB(arlan->resetFlag) ||
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| 231 |
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READSHMB(arlan->commandByte)) &&
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| 232 |
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!(priv->waiting_command_mask & ARLAN_COMMAND_RESET))
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| 233 |
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{
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| 234 |
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goto card_busy_end;
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| 235 |
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}
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| 236 |
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}
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| 237 |
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if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
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| 238 |
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priv->under_reset = 1;
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| 239 |
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if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
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| 240 |
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priv->under_config = 1;
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| 241 |
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| 242 |
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/* Issuing command */
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| 243 |
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arlan_lock_card_access(dev);
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| 244 |
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if (priv->waiting_command_mask & ARLAN_COMMAND_POWERUP)
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| 245 |
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{
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| 246 |
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// if (readControlRegister(dev) & (ARLAN_ACCESS && ARLAN_POWER))
|
| 247 |
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setPowerOn(dev);
|
| 248 |
|
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arlan_interrupt_lancpu(dev);
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| 249 |
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priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERUP;
|
| 250 |
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priv->waiting_command_mask |= ARLAN_COMMAND_RESET;
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| 251 |
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priv->card_polling_interval = HZ / 10;
|
| 252 |
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}
|
| 253 |
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else if (priv->waiting_command_mask & ARLAN_COMMAND_ACTIVATE)
|
| 254 |
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{
|
| 255 |
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WRITESHMB(arlan->commandByte, ARLAN_COM_ACTIVATE);
|
| 256 |
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arlan_interrupt_lancpu(dev);
|
| 257 |
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priv->waiting_command_mask &= ~ARLAN_COMMAND_ACTIVATE;
|
| 258 |
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priv->card_polling_interval = HZ / 10;
|
| 259 |
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}
|
| 260 |
|
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else if (priv->waiting_command_mask & ARLAN_COMMAND_RX_ABORT)
|
| 261 |
|
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{
|
| 262 |
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if (priv->rx_command_given)
|
| 263 |
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{
|
| 264 |
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WRITESHMB(arlan->commandByte, ARLAN_COM_RX_ABORT);
|
| 265 |
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arlan_interrupt_lancpu(dev);
|
| 266 |
|
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priv->rx_command_given = 0;
|
| 267 |
|
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}
|
| 268 |
|
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priv->waiting_command_mask &= ~ARLAN_COMMAND_RX_ABORT;
|
| 269 |
|
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priv->card_polling_interval = 1;
|
| 270 |
|
|
}
|
| 271 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_TX_ABORT)
|
| 272 |
|
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{
|
| 273 |
|
|
if (priv->tx_command_given)
|
| 274 |
|
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{
|
| 275 |
|
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WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ABORT);
|
| 276 |
|
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arlan_interrupt_lancpu(dev);
|
| 277 |
|
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priv->tx_command_given = 0;
|
| 278 |
|
|
}
|
| 279 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_TX_ABORT;
|
| 280 |
|
|
priv->card_polling_interval = 1;
|
| 281 |
|
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}
|
| 282 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
|
| 283 |
|
|
{
|
| 284 |
|
|
priv->under_reset=1;
|
| 285 |
|
|
netif_stop_queue (dev);
|
| 286 |
|
|
|
| 287 |
|
|
arlan_drop_tx(dev);
|
| 288 |
|
|
if (priv->tx_command_given || priv->rx_command_given)
|
| 289 |
|
|
{
|
| 290 |
|
|
printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
|
| 291 |
|
|
}
|
| 292 |
|
|
netif_stop_queue (dev);
|
| 293 |
|
|
if (arlan_debug & ARLAN_DEBUG_RESET)
|
| 294 |
|
|
printk(KERN_ERR "%s: Doing chip reset\n", dev->name);
|
| 295 |
|
|
priv->lastReset = jiffies;
|
| 296 |
|
|
WRITESHM(arlan->commandByte, 0, u_char);
|
| 297 |
|
|
/* hold card in reset state */
|
| 298 |
|
|
setHardwareReset(dev);
|
| 299 |
|
|
/* set reset flag and then release reset */
|
| 300 |
|
|
WRITESHM(arlan->resetFlag, 0xff, u_char);
|
| 301 |
|
|
clearChannelAttention(dev);
|
| 302 |
|
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clearHardwareReset(dev);
|
| 303 |
|
|
priv->card_polling_interval = HZ / 4;
|
| 304 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_RESET;
|
| 305 |
|
|
priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;
|
| 306 |
|
|
// priv->waiting_command_mask |= ARLAN_COMMAND_INT_RENABLE;
|
| 307 |
|
|
// priv->waiting_command_mask |= ARLAN_COMMAND_RX;
|
| 308 |
|
|
}
|
| 309 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RACK)
|
| 310 |
|
|
{
|
| 311 |
|
|
clearHardwareReset(dev);
|
| 312 |
|
|
clearClearInterrupt(dev);
|
| 313 |
|
|
setClearInterrupt(dev);
|
| 314 |
|
|
setInterruptEnable(dev);
|
| 315 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RACK;
|
| 316 |
|
|
priv->waiting_command_mask |= ARLAN_COMMAND_CONF;
|
| 317 |
|
|
priv->under_config = 1;
|
| 318 |
|
|
priv->under_reset = 0;
|
| 319 |
|
|
}
|
| 320 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RENABLE)
|
| 321 |
|
|
{
|
| 322 |
|
|
setInterruptEnable(dev);
|
| 323 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RENABLE;
|
| 324 |
|
|
}
|
| 325 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
|
| 326 |
|
|
{
|
| 327 |
|
|
if (priv->tx_command_given || priv->rx_command_given)
|
| 328 |
|
|
{
|
| 329 |
|
|
printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
|
| 330 |
|
|
}
|
| 331 |
|
|
arlan_drop_tx(dev);
|
| 332 |
|
|
setInterruptEnable(dev);
|
| 333 |
|
|
arlan_hw_config(dev);
|
| 334 |
|
|
arlan_interrupt_lancpu(dev);
|
| 335 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF;
|
| 336 |
|
|
priv->card_polling_interval = HZ / 10;
|
| 337 |
|
|
// priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;
|
| 338 |
|
|
// priv->waiting_command_mask |= ARLAN_COMMAND_INT_ENABLE;
|
| 339 |
|
|
priv->waiting_command_mask |= ARLAN_COMMAND_CONF_WAIT;
|
| 340 |
|
|
}
|
| 341 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF_WAIT)
|
| 342 |
|
|
{
|
| 343 |
|
|
if (READSHMB(arlan->configuredStatusFlag) != 0 &&
|
| 344 |
|
|
READSHMB(arlan->diagnosticInfo) == 0xff)
|
| 345 |
|
|
{
|
| 346 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF_WAIT;
|
| 347 |
|
|
priv->waiting_command_mask |= ARLAN_COMMAND_RX;
|
| 348 |
|
|
priv->waiting_command_mask |= ARLAN_COMMAND_TBUSY_CLEAR;
|
| 349 |
|
|
priv->card_polling_interval = HZ / 10;
|
| 350 |
|
|
priv->tx_command_given = 0;
|
| 351 |
|
|
priv->under_config = 0;
|
| 352 |
|
|
}
|
| 353 |
|
|
else
|
| 354 |
|
|
{
|
| 355 |
|
|
priv->card_polling_interval = 1;
|
| 356 |
|
|
if (arlan_debug & ARLAN_DEBUG_TIMING)
|
| 357 |
|
|
printk(KERN_ERR "configure delayed \n");
|
| 358 |
|
|
}
|
| 359 |
|
|
}
|
| 360 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_RX)
|
| 361 |
|
|
{
|
| 362 |
|
|
if (!registrationBad(dev))
|
| 363 |
|
|
{
|
| 364 |
|
|
setInterruptEnable(dev);
|
| 365 |
|
|
memset_io(arlan->commandParameter, 0, 0xf);
|
| 366 |
|
|
WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_RX_ENABLE);
|
| 367 |
|
|
WRITESHMB(arlan->commandParameter[0], conf->rxParameter);
|
| 368 |
|
|
arlan_interrupt_lancpu(dev);
|
| 369 |
|
|
priv->rx_command_given = 0; // mnjah, bad
|
| 370 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_RX;
|
| 371 |
|
|
priv->card_polling_interval = 1;
|
| 372 |
|
|
}
|
| 373 |
|
|
else
|
| 374 |
|
|
priv->card_polling_interval = 2;
|
| 375 |
|
|
}
|
| 376 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_TBUSY_CLEAR)
|
| 377 |
|
|
{
|
| 378 |
|
|
if ( !registrationBad(dev) &&
|
| 379 |
|
|
(netif_queue_stopped(dev) || !netif_running(dev)) )
|
| 380 |
|
|
{
|
| 381 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_TBUSY_CLEAR;
|
| 382 |
|
|
netif_wake_queue (dev);
|
| 383 |
|
|
}
|
| 384 |
|
|
}
|
| 385 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_TX)
|
| 386 |
|
|
{
|
| 387 |
|
|
if (!test_and_set_bit(0, (void *) &priv->tx_command_given))
|
| 388 |
|
|
{
|
| 389 |
|
|
if (time_after(jiffies,
|
| 390 |
|
|
priv->tx_last_sent + us2ticks(conf->rx_tweak1))
|
| 391 |
|
|
|| time_before(jiffies,
|
| 392 |
|
|
priv->last_rx_int_ack_time + us2ticks(conf->rx_tweak2)))
|
| 393 |
|
|
{
|
| 394 |
|
|
setInterruptEnable(dev);
|
| 395 |
|
|
memset_io(arlan->commandParameter, 0, 0xf);
|
| 396 |
|
|
WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ENABLE | ARLAN_COM_INT);
|
| 397 |
|
|
memcpy_toio(arlan->commandParameter, &TXLAST(dev), 14);
|
| 398 |
|
|
// for ( i=1 ; i < 15 ; i++) printk("%02x:",READSHMB(arlan->commandParameter[i]));
|
| 399 |
|
|
priv->tx_last_sent = jiffies;
|
| 400 |
|
|
arlan_interrupt_lancpu(dev);
|
| 401 |
|
|
priv->tx_command_given = 1;
|
| 402 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_TX;
|
| 403 |
|
|
priv->card_polling_interval = 1;
|
| 404 |
|
|
}
|
| 405 |
|
|
else
|
| 406 |
|
|
{
|
| 407 |
|
|
priv->tx_command_given = 0;
|
| 408 |
|
|
priv->card_polling_interval = 1;
|
| 409 |
|
|
}
|
| 410 |
|
|
}
|
| 411 |
|
|
else if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
|
| 412 |
|
|
printk(KERN_ERR "tx command when tx chain locked \n");
|
| 413 |
|
|
}
|
| 414 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOPINT)
|
| 415 |
|
|
{
|
| 416 |
|
|
{
|
| 417 |
|
|
WRITESHMB(arlan->commandByte, ARLAN_COM_NOP | ARLAN_COM_INT);
|
| 418 |
|
|
}
|
| 419 |
|
|
arlan_interrupt_lancpu(dev);
|
| 420 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOPINT;
|
| 421 |
|
|
priv->card_polling_interval = HZ / 3;
|
| 422 |
|
|
}
|
| 423 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOP)
|
| 424 |
|
|
{
|
| 425 |
|
|
WRITESHMB(arlan->commandByte, ARLAN_COM_NOP);
|
| 426 |
|
|
arlan_interrupt_lancpu(dev);
|
| 427 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOP;
|
| 428 |
|
|
priv->card_polling_interval = HZ / 3;
|
| 429 |
|
|
}
|
| 430 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_SLOW_POLL)
|
| 431 |
|
|
{
|
| 432 |
|
|
WRITESHMB(arlan->commandByte, ARLAN_COM_GOTO_SLOW_POLL);
|
| 433 |
|
|
arlan_interrupt_lancpu(dev);
|
| 434 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_SLOW_POLL;
|
| 435 |
|
|
priv->card_polling_interval = HZ / 3;
|
| 436 |
|
|
}
|
| 437 |
|
|
else if (priv->waiting_command_mask & ARLAN_COMMAND_POWERDOWN)
|
| 438 |
|
|
{
|
| 439 |
|
|
setPowerOff(dev);
|
| 440 |
|
|
if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
|
| 441 |
|
|
printk(KERN_WARNING "%s: Arlan Going Standby\n", dev->name);
|
| 442 |
|
|
priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERDOWN;
|
| 443 |
|
|
priv->card_polling_interval = 3 * HZ;
|
| 444 |
|
|
}
|
| 445 |
|
|
arlan_unlock_card_access(dev);
|
| 446 |
|
|
for (i = 0; READSHMB(arlan->commandByte) && i < 20; i++)
|
| 447 |
|
|
udelay(10);
|
| 448 |
|
|
if (READSHMB(arlan->commandByte))
|
| 449 |
|
|
if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
|
| 450 |
|
|
printk(KERN_ERR "card busy leaving command %lx\n", priv->waiting_command_mask);
|
| 451 |
|
|
|
| 452 |
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
| 453 |
|
|
ARLAN_DEBUG_EXIT("arlan_command");
|
| 454 |
|
|
priv->last_command_buff_free_time = jiffies;
|
| 455 |
|
|
return 0;
|
| 456 |
|
|
|
| 457 |
|
|
card_busy_end:
|
| 458 |
|
|
if (time_after(jiffies, priv->last_command_buff_free_time + HZ))
|
| 459 |
|
|
priv->waiting_command_mask |= ARLAN_COMMAND_CLEAN_AND_RESET;
|
| 460 |
|
|
|
| 461 |
|
|
if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
|
| 462 |
|
|
printk(KERN_ERR "%s arlan_command card busy end \n", dev->name);
|
| 463 |
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
| 464 |
|
|
ARLAN_DEBUG_EXIT("arlan_command");
|
| 465 |
|
|
return 1;
|
| 466 |
|
|
|
| 467 |
|
|
bad_end:
|
| 468 |
|
|
printk(KERN_ERR "%s arlan_command bad end \n", dev->name);
|
| 469 |
|
|
|
| 470 |
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
| 471 |
|
|
ARLAN_DEBUG_EXIT("arlan_command");
|
| 472 |
|
|
|
| 473 |
|
|
return -1;
|
| 474 |
|
|
}
|
| 475 |
|
|
|
| 476 |
|
|
static inline void arlan_command_process(struct net_device *dev)
|
| 477 |
|
|
{
|
| 478 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 479 |
|
|
|
| 480 |
|
|
int times = 0;
|
| 481 |
|
|
while (priv->waiting_command_mask && times < 8)
|
| 482 |
|
|
{
|
| 483 |
|
|
if (priv->waiting_command_mask)
|
| 484 |
|
|
{
|
| 485 |
|
|
if (arlan_command(dev, 0))
|
| 486 |
|
|
break;
|
| 487 |
|
|
times++;
|
| 488 |
|
|
}
|
| 489 |
|
|
/* if long command, we won't repeat trying */ ;
|
| 490 |
|
|
if (priv->card_polling_interval > 1)
|
| 491 |
|
|
break;
|
| 492 |
|
|
times++;
|
| 493 |
|
|
}
|
| 494 |
|
|
}
|
| 495 |
|
|
|
| 496 |
|
|
|
| 497 |
|
|
static inline void arlan_retransmit_now(struct net_device *dev)
|
| 498 |
|
|
{
|
| 499 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 500 |
|
|
|
| 501 |
|
|
|
| 502 |
|
|
ARLAN_DEBUG_ENTRY("arlan_retransmit_now");
|
| 503 |
|
|
if (TXLAST(dev).offset == 0)
|
| 504 |
|
|
{
|
| 505 |
|
|
if (TXHEAD(dev).offset)
|
| 506 |
|
|
{
|
| 507 |
|
|
priv->txLast = 0;
|
| 508 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to head \n");
|
| 509 |
|
|
|
| 510 |
|
|
}
|
| 511 |
|
|
else if (TXTAIL(dev).offset)
|
| 512 |
|
|
{
|
| 513 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to tail \n");
|
| 514 |
|
|
priv->txLast = 1;
|
| 515 |
|
|
}
|
| 516 |
|
|
else
|
| 517 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "ReTransmit buff empty");
|
| 518 |
|
|
netif_wake_queue (dev);
|
| 519 |
|
|
return;
|
| 520 |
|
|
|
| 521 |
|
|
}
|
| 522 |
|
|
arlan_command(dev, ARLAN_COMMAND_TX);
|
| 523 |
|
|
|
| 524 |
|
|
priv->Conf->driverRetransmissions++;
|
| 525 |
|
|
priv->retransmissions++;
|
| 526 |
|
|
|
| 527 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("Retransmit %d bytes \n", TXLAST(dev).length);
|
| 528 |
|
|
|
| 529 |
|
|
ARLAN_DEBUG_EXIT("arlan_retransmit_now");
|
| 530 |
|
|
}
|
| 531 |
|
|
|
| 532 |
|
|
|
| 533 |
|
|
|
| 534 |
|
|
static void arlan_registration_timer(unsigned long data)
|
| 535 |
|
|
{
|
| 536 |
|
|
struct net_device *dev = (struct net_device *) data;
|
| 537 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 538 |
|
|
int bh_mark_needed = 0;
|
| 539 |
|
|
int next_tick = 1;
|
| 540 |
|
|
long lostTime = ((long)jiffies - (long)priv->registrationLastSeen)
|
| 541 |
|
|
* (1000/HZ);
|
| 542 |
|
|
|
| 543 |
|
|
if (registrationBad(dev))
|
| 544 |
|
|
{
|
| 545 |
|
|
priv->registrationLostCount++;
|
| 546 |
|
|
if (lostTime > 7000 && lostTime < 7200)
|
| 547 |
|
|
{
|
| 548 |
|
|
printk(KERN_NOTICE "%s registration Lost \n", dev->name);
|
| 549 |
|
|
}
|
| 550 |
|
|
if (lostTime / priv->reRegisterExp > 2000)
|
| 551 |
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
|
| 552 |
|
|
if (lostTime / (priv->reRegisterExp) > 3500)
|
| 553 |
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
|
| 554 |
|
|
if (priv->reRegisterExp < 400)
|
| 555 |
|
|
priv->reRegisterExp += 2;
|
| 556 |
|
|
if (lostTime > 7200)
|
| 557 |
|
|
{
|
| 558 |
|
|
next_tick = HZ;
|
| 559 |
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
|
| 560 |
|
|
}
|
| 561 |
|
|
}
|
| 562 |
|
|
else
|
| 563 |
|
|
{
|
| 564 |
|
|
if (priv->Conf->registrationMode && lostTime > 10000 &&
|
| 565 |
|
|
priv->registrationLostCount)
|
| 566 |
|
|
{
|
| 567 |
|
|
printk(KERN_NOTICE "%s registration is back after %ld milliseconds\n",
|
| 568 |
|
|
dev->name, lostTime);
|
| 569 |
|
|
}
|
| 570 |
|
|
priv->registrationLastSeen = jiffies;
|
| 571 |
|
|
priv->registrationLostCount = 0;
|
| 572 |
|
|
priv->reRegisterExp = 1;
|
| 573 |
|
|
if (!netif_running(dev) )
|
| 574 |
|
|
netif_wake_queue(dev);
|
| 575 |
|
|
if (time_after(priv->tx_last_sent,priv->tx_last_cleared) &&
|
| 576 |
|
|
time_after(jiffies, priv->tx_last_sent * 5*HZ) ){
|
| 577 |
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
|
| 578 |
|
|
priv->tx_last_cleared = jiffies;
|
| 579 |
|
|
}
|
| 580 |
|
|
}
|
| 581 |
|
|
|
| 582 |
|
|
|
| 583 |
|
|
if (!registrationBad(dev) && priv->ReTransmitRequested)
|
| 584 |
|
|
{
|
| 585 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 586 |
|
|
printk(KERN_ERR "Retransmit from timer \n");
|
| 587 |
|
|
priv->ReTransmitRequested = 0;
|
| 588 |
|
|
arlan_retransmit_now(dev);
|
| 589 |
|
|
}
|
| 590 |
|
|
if (!registrationBad(dev) &&
|
| 591 |
|
|
time_after(jiffies, priv->tx_done_delayed) &&
|
| 592 |
|
|
priv->tx_done_delayed != 0)
|
| 593 |
|
|
{
|
| 594 |
|
|
TXLAST(dev).offset = 0;
|
| 595 |
|
|
if (priv->txLast)
|
| 596 |
|
|
priv->txLast = 0;
|
| 597 |
|
|
else if (TXTAIL(dev).offset)
|
| 598 |
|
|
priv->txLast = 1;
|
| 599 |
|
|
if (TXLAST(dev).offset)
|
| 600 |
|
|
{
|
| 601 |
|
|
arlan_retransmit_now(dev);
|
| 602 |
|
|
dev->trans_start = jiffies;
|
| 603 |
|
|
}
|
| 604 |
|
|
if (!(TXHEAD(dev).offset && TXTAIL(dev).offset))
|
| 605 |
|
|
{
|
| 606 |
|
|
netif_wake_queue (dev);
|
| 607 |
|
|
}
|
| 608 |
|
|
priv->tx_done_delayed = 0;
|
| 609 |
|
|
bh_mark_needed = 1;
|
| 610 |
|
|
}
|
| 611 |
|
|
if (bh_mark_needed)
|
| 612 |
|
|
{
|
| 613 |
|
|
netif_wake_queue (dev);
|
| 614 |
|
|
}
|
| 615 |
|
|
arlan_process_interrupt(dev);
|
| 616 |
|
|
|
| 617 |
|
|
if (next_tick < priv->card_polling_interval)
|
| 618 |
|
|
next_tick = priv->card_polling_interval;
|
| 619 |
|
|
|
| 620 |
|
|
priv->timer.expires = jiffies + next_tick;
|
| 621 |
|
|
|
| 622 |
|
|
add_timer(&priv->timer);
|
| 623 |
|
|
}
|
| 624 |
|
|
|
| 625 |
|
|
|
| 626 |
|
|
#ifdef ARLAN_DEBUGGING
|
| 627 |
|
|
|
| 628 |
|
|
static void arlan_print_registers(struct net_device *dev, int line)
|
| 629 |
|
|
{
|
| 630 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 631 |
|
|
volatile struct arlan_shmem *arlan = priv->card;
|
| 632 |
|
|
|
| 633 |
|
|
u_char hostcpuLock, lancpuLock, controlRegister, cntrlRegImage,
|
| 634 |
|
|
txStatus, rxStatus, interruptInProgress, commandByte;
|
| 635 |
|
|
|
| 636 |
|
|
|
| 637 |
|
|
ARLAN_DEBUG_ENTRY("arlan_print_registers");
|
| 638 |
|
|
READSHM(interruptInProgress, arlan->interruptInProgress, u_char);
|
| 639 |
|
|
READSHM(hostcpuLock, arlan->hostcpuLock, u_char);
|
| 640 |
|
|
READSHM(lancpuLock, arlan->lancpuLock, u_char);
|
| 641 |
|
|
READSHM(controlRegister, arlan->controlRegister, u_char);
|
| 642 |
|
|
READSHM(cntrlRegImage, arlan->cntrlRegImage, u_char);
|
| 643 |
|
|
READSHM(txStatus, arlan->txStatus, u_char);
|
| 644 |
|
|
READSHM(rxStatus, arlan->rxStatus, u_char);
|
| 645 |
|
|
READSHM(commandByte, arlan->commandByte, u_char);
|
| 646 |
|
|
|
| 647 |
|
|
printk(KERN_WARNING "line %04d IP %02x HL %02x LL %02x CB %02x CR %02x CRI %02x TX %02x RX %02x\n",
|
| 648 |
|
|
line, interruptInProgress, hostcpuLock, lancpuLock, commandByte,
|
| 649 |
|
|
controlRegister, cntrlRegImage, txStatus, rxStatus);
|
| 650 |
|
|
|
| 651 |
|
|
ARLAN_DEBUG_EXIT("arlan_print_registers");
|
| 652 |
|
|
}
|
| 653 |
|
|
#endif
|
| 654 |
|
|
|
| 655 |
|
|
|
| 656 |
|
|
static int arlan_hw_tx(struct net_device *dev, char *buf, int length)
|
| 657 |
|
|
{
|
| 658 |
|
|
int i;
|
| 659 |
|
|
|
| 660 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 661 |
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
| 662 |
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
| 663 |
|
|
|
| 664 |
|
|
int tailStarts = 0x800;
|
| 665 |
|
|
int headEnds = 0x0;
|
| 666 |
|
|
|
| 667 |
|
|
|
| 668 |
|
|
ARLAN_DEBUG_ENTRY("arlan_hw_tx");
|
| 669 |
|
|
if (TXHEAD(dev).offset)
|
| 670 |
|
|
headEnds = (((TXHEAD(dev).offset + TXHEAD(dev).length - offsetof(struct arlan_shmem, txBuffer)) / 64) + 1) * 64;
|
| 671 |
|
|
if (TXTAIL(dev).offset)
|
| 672 |
|
|
tailStarts = 0x800 - (((TXTAIL(dev).offset - offsetof(struct arlan_shmem, txBuffer)) / 64) + 2) * 64;
|
| 673 |
|
|
|
| 674 |
|
|
|
| 675 |
|
|
if (!TXHEAD(dev).offset && length < tailStarts)
|
| 676 |
|
|
{
|
| 677 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 678 |
|
|
printk(KERN_ERR "TXHEAD insert, tailStart %d\n", tailStarts);
|
| 679 |
|
|
|
| 680 |
|
|
TXHEAD(dev).offset =
|
| 681 |
|
|
offsetof(struct arlan_shmem, txBuffer);
|
| 682 |
|
|
TXHEAD(dev).length = length - ARLAN_FAKE_HDR_LEN;
|
| 683 |
|
|
for (i = 0; i < 6; i++)
|
| 684 |
|
|
TXHEAD(dev).dest[i] = buf[i];
|
| 685 |
|
|
TXHEAD(dev).clear = conf->txClear;
|
| 686 |
|
|
TXHEAD(dev).retries = conf->txRetries; /* 0 is use default */
|
| 687 |
|
|
TXHEAD(dev).routing = conf->txRouting;
|
| 688 |
|
|
TXHEAD(dev).scrambled = conf->txScrambled;
|
| 689 |
|
|
memcpy_toio((char __iomem *)arlan + TXHEAD(dev).offset, buf + ARLAN_FAKE_HDR_LEN, TXHEAD(dev).length);
|
| 690 |
|
|
}
|
| 691 |
|
|
else if (!TXTAIL(dev).offset && length < (0x800 - headEnds))
|
| 692 |
|
|
{
|
| 693 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 694 |
|
|
printk(KERN_ERR "TXTAIL insert, headEnd %d\n", headEnds);
|
| 695 |
|
|
|
| 696 |
|
|
TXTAIL(dev).offset =
|
| 697 |
|
|
offsetof(struct arlan_shmem, txBuffer) + 0x800 - (length / 64 + 2) * 64;
|
| 698 |
|
|
TXTAIL(dev).length = length - ARLAN_FAKE_HDR_LEN;
|
| 699 |
|
|
for (i = 0; i < 6; i++)
|
| 700 |
|
|
TXTAIL(dev).dest[i] = buf[i];
|
| 701 |
|
|
TXTAIL(dev).clear = conf->txClear;
|
| 702 |
|
|
TXTAIL(dev).retries = conf->txRetries;
|
| 703 |
|
|
TXTAIL(dev).routing = conf->txRouting;
|
| 704 |
|
|
TXTAIL(dev).scrambled = conf->txScrambled;
|
| 705 |
|
|
memcpy_toio(((char __iomem *)arlan + TXTAIL(dev).offset), buf + ARLAN_FAKE_HDR_LEN, TXTAIL(dev).length);
|
| 706 |
|
|
}
|
| 707 |
|
|
else
|
| 708 |
|
|
{
|
| 709 |
|
|
netif_stop_queue (dev);
|
| 710 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 711 |
|
|
printk(KERN_ERR "TX TAIL & HEAD full, return, tailStart %d headEnd %d\n", tailStarts, headEnds);
|
| 712 |
|
|
return -1;
|
| 713 |
|
|
}
|
| 714 |
|
|
priv->out_bytes += length;
|
| 715 |
|
|
priv->out_bytes10 += length;
|
| 716 |
|
|
if (conf->measure_rate < 1)
|
| 717 |
|
|
conf->measure_rate = 1;
|
| 718 |
|
|
if (time_after(jiffies, priv->out_time + conf->measure_rate * HZ))
|
| 719 |
|
|
{
|
| 720 |
|
|
conf->out_speed = priv->out_bytes / conf->measure_rate;
|
| 721 |
|
|
priv->out_bytes = 0;
|
| 722 |
|
|
priv->out_time = jiffies;
|
| 723 |
|
|
}
|
| 724 |
|
|
if (time_after(jiffies, priv->out_time10 + conf->measure_rate * 10*HZ))
|
| 725 |
|
|
{
|
| 726 |
|
|
conf->out_speed10 = priv->out_bytes10 / (10 * conf->measure_rate);
|
| 727 |
|
|
priv->out_bytes10 = 0;
|
| 728 |
|
|
priv->out_time10 = jiffies;
|
| 729 |
|
|
}
|
| 730 |
|
|
if (TXHEAD(dev).offset && TXTAIL(dev).offset)
|
| 731 |
|
|
{
|
| 732 |
|
|
netif_stop_queue (dev);
|
| 733 |
|
|
return 0;
|
| 734 |
|
|
}
|
| 735 |
|
|
else
|
| 736 |
|
|
netif_start_queue (dev);
|
| 737 |
|
|
|
| 738 |
|
|
|
| 739 |
|
|
IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
|
| 740 |
|
|
printk(KERN_WARNING "%s Transmit t %2x:%2x:%2x:%2x:%2x:%2x f %2x:%2x:%2x:%2x:%2x:%2x \n", dev->name,
|
| 741 |
|
|
(unsigned char) buf[0], (unsigned char) buf[1], (unsigned char) buf[2], (unsigned char) buf[3],
|
| 742 |
|
|
(unsigned char) buf[4], (unsigned char) buf[5], (unsigned char) buf[6], (unsigned char) buf[7],
|
| 743 |
|
|
(unsigned char) buf[8], (unsigned char) buf[9], (unsigned char) buf[10], (unsigned char) buf[11]);
|
| 744 |
|
|
|
| 745 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "TX command prepare for buffer %d\n", priv->txLast);
|
| 746 |
|
|
|
| 747 |
|
|
arlan_command(dev, ARLAN_COMMAND_TX);
|
| 748 |
|
|
|
| 749 |
|
|
priv->tx_last_sent = jiffies;
|
| 750 |
|
|
|
| 751 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("%s TX Qued %d bytes \n", dev->name, length);
|
| 752 |
|
|
|
| 753 |
|
|
ARLAN_DEBUG_EXIT("arlan_hw_tx");
|
| 754 |
|
|
|
| 755 |
|
|
return 0;
|
| 756 |
|
|
}
|
| 757 |
|
|
|
| 758 |
|
|
|
| 759 |
|
|
static int arlan_hw_config(struct net_device *dev)
|
| 760 |
|
|
{
|
| 761 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 762 |
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
| 763 |
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
| 764 |
|
|
|
| 765 |
|
|
ARLAN_DEBUG_ENTRY("arlan_hw_config");
|
| 766 |
|
|
|
| 767 |
|
|
printk(KERN_NOTICE "%s arlan configure called \n", dev->name);
|
| 768 |
|
|
if (arlan_EEPROM_bad)
|
| 769 |
|
|
printk(KERN_NOTICE "arlan configure with eeprom bad option \n");
|
| 770 |
|
|
|
| 771 |
|
|
|
| 772 |
|
|
WRITESHM(arlan->spreadingCode, conf->spreadingCode, u_char);
|
| 773 |
|
|
WRITESHM(arlan->channelSet, conf->channelSet, u_char);
|
| 774 |
|
|
|
| 775 |
|
|
if (arlan_EEPROM_bad)
|
| 776 |
|
|
WRITESHM(arlan->defaultChannelSet, conf->channelSet, u_char);
|
| 777 |
|
|
|
| 778 |
|
|
WRITESHM(arlan->channelNumber, conf->channelNumber, u_char);
|
| 779 |
|
|
|
| 780 |
|
|
WRITESHM(arlan->scramblingDisable, conf->scramblingDisable, u_char);
|
| 781 |
|
|
WRITESHM(arlan->txAttenuation, conf->txAttenuation, u_char);
|
| 782 |
|
|
|
| 783 |
|
|
WRITESHM(arlan->systemId, conf->systemId, u_int);
|
| 784 |
|
|
|
| 785 |
|
|
WRITESHM(arlan->maxRetries, conf->maxRetries, u_char);
|
| 786 |
|
|
WRITESHM(arlan->receiveMode, conf->receiveMode, u_char);
|
| 787 |
|
|
WRITESHM(arlan->priority, conf->priority, u_char);
|
| 788 |
|
|
WRITESHM(arlan->rootOrRepeater, conf->rootOrRepeater, u_char);
|
| 789 |
|
|
WRITESHM(arlan->SID, conf->SID, u_int);
|
| 790 |
|
|
|
| 791 |
|
|
WRITESHM(arlan->registrationMode, conf->registrationMode, u_char);
|
| 792 |
|
|
|
| 793 |
|
|
WRITESHM(arlan->registrationFill, conf->registrationFill, u_char);
|
| 794 |
|
|
WRITESHM(arlan->localTalkAddress, conf->localTalkAddress, u_char);
|
| 795 |
|
|
WRITESHM(arlan->codeFormat, conf->codeFormat, u_char);
|
| 796 |
|
|
WRITESHM(arlan->numChannels, conf->numChannels, u_char);
|
| 797 |
|
|
WRITESHM(arlan->channel1, conf->channel1, u_char);
|
| 798 |
|
|
WRITESHM(arlan->channel2, conf->channel2, u_char);
|
| 799 |
|
|
WRITESHM(arlan->channel3, conf->channel3, u_char);
|
| 800 |
|
|
WRITESHM(arlan->channel4, conf->channel4, u_char);
|
| 801 |
|
|
WRITESHM(arlan->radioNodeId, conf->radioNodeId, u_short);
|
| 802 |
|
|
WRITESHM(arlan->SID, conf->SID, u_int);
|
| 803 |
|
|
WRITESHM(arlan->waitTime, conf->waitTime, u_short);
|
| 804 |
|
|
WRITESHM(arlan->lParameter, conf->lParameter, u_short);
|
| 805 |
|
|
memcpy_toio(&(arlan->_15), &(conf->_15), 3);
|
| 806 |
|
|
WRITESHM(arlan->_15, conf->_15, u_short);
|
| 807 |
|
|
WRITESHM(arlan->headerSize, conf->headerSize, u_short);
|
| 808 |
|
|
if (arlan_EEPROM_bad)
|
| 809 |
|
|
WRITESHM(arlan->hardwareType, conf->hardwareType, u_char);
|
| 810 |
|
|
WRITESHM(arlan->radioType, conf->radioType, u_char);
|
| 811 |
|
|
if (arlan_EEPROM_bad)
|
| 812 |
|
|
WRITESHM(arlan->radioModule, conf->radioType, u_char);
|
| 813 |
|
|
|
| 814 |
|
|
memcpy_toio(arlan->encryptionKey + keyStart, encryptionKey, 8);
|
| 815 |
|
|
memcpy_toio(arlan->name, conf->siteName, 16);
|
| 816 |
|
|
|
| 817 |
|
|
WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_CONF); /* do configure */
|
| 818 |
|
|
memset_io(arlan->commandParameter, 0, 0xf); /* 0xf */
|
| 819 |
|
|
memset_io(arlan->commandParameter + 1, 0, 2);
|
| 820 |
|
|
if (conf->writeEEPROM)
|
| 821 |
|
|
{
|
| 822 |
|
|
memset_io(arlan->commandParameter, conf->writeEEPROM, 1);
|
| 823 |
|
|
// conf->writeEEPROM=0;
|
| 824 |
|
|
}
|
| 825 |
|
|
if (conf->registrationMode && conf->registrationInterrupts)
|
| 826 |
|
|
memset_io(arlan->commandParameter + 3, 1, 1);
|
| 827 |
|
|
else
|
| 828 |
|
|
memset_io(arlan->commandParameter + 3, 0, 1);
|
| 829 |
|
|
|
| 830 |
|
|
priv->irq_test_done = 0;
|
| 831 |
|
|
|
| 832 |
|
|
if (conf->tx_queue_len)
|
| 833 |
|
|
dev->tx_queue_len = conf->tx_queue_len;
|
| 834 |
|
|
udelay(100);
|
| 835 |
|
|
|
| 836 |
|
|
ARLAN_DEBUG_EXIT("arlan_hw_config");
|
| 837 |
|
|
return 0;
|
| 838 |
|
|
}
|
| 839 |
|
|
|
| 840 |
|
|
|
| 841 |
|
|
static int arlan_read_card_configuration(struct net_device *dev)
|
| 842 |
|
|
{
|
| 843 |
|
|
u_char tlx415;
|
| 844 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 845 |
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
| 846 |
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
| 847 |
|
|
|
| 848 |
|
|
ARLAN_DEBUG_ENTRY("arlan_read_card_configuration");
|
| 849 |
|
|
|
| 850 |
|
|
if (radioNodeId == radioNodeIdUNKNOWN)
|
| 851 |
|
|
{
|
| 852 |
|
|
READSHM(conf->radioNodeId, arlan->radioNodeId, u_short);
|
| 853 |
|
|
}
|
| 854 |
|
|
else
|
| 855 |
|
|
conf->radioNodeId = radioNodeId;
|
| 856 |
|
|
|
| 857 |
|
|
if (SID == SIDUNKNOWN)
|
| 858 |
|
|
{
|
| 859 |
|
|
READSHM(conf->SID, arlan->SID, u_int);
|
| 860 |
|
|
}
|
| 861 |
|
|
else conf->SID = SID;
|
| 862 |
|
|
|
| 863 |
|
|
if (spreadingCode == spreadingCodeUNKNOWN)
|
| 864 |
|
|
{
|
| 865 |
|
|
READSHM(conf->spreadingCode, arlan->spreadingCode, u_char);
|
| 866 |
|
|
}
|
| 867 |
|
|
else
|
| 868 |
|
|
conf->spreadingCode = spreadingCode;
|
| 869 |
|
|
|
| 870 |
|
|
if (channelSet == channelSetUNKNOWN)
|
| 871 |
|
|
{
|
| 872 |
|
|
READSHM(conf->channelSet, arlan->channelSet, u_char);
|
| 873 |
|
|
}
|
| 874 |
|
|
else conf->channelSet = channelSet;
|
| 875 |
|
|
|
| 876 |
|
|
if (channelNumber == channelNumberUNKNOWN)
|
| 877 |
|
|
{
|
| 878 |
|
|
READSHM(conf->channelNumber, arlan->channelNumber, u_char);
|
| 879 |
|
|
}
|
| 880 |
|
|
else conf->channelNumber = channelNumber;
|
| 881 |
|
|
|
| 882 |
|
|
READSHM(conf->scramblingDisable, arlan->scramblingDisable, u_char);
|
| 883 |
|
|
READSHM(conf->txAttenuation, arlan->txAttenuation, u_char);
|
| 884 |
|
|
|
| 885 |
|
|
if (systemId == systemIdUNKNOWN)
|
| 886 |
|
|
{
|
| 887 |
|
|
READSHM(conf->systemId, arlan->systemId, u_int);
|
| 888 |
|
|
}
|
| 889 |
|
|
else conf->systemId = systemId;
|
| 890 |
|
|
|
| 891 |
|
|
READSHM(conf->maxDatagramSize, arlan->maxDatagramSize, u_short);
|
| 892 |
|
|
READSHM(conf->maxFrameSize, arlan->maxFrameSize, u_short);
|
| 893 |
|
|
READSHM(conf->maxRetries, arlan->maxRetries, u_char);
|
| 894 |
|
|
READSHM(conf->receiveMode, arlan->receiveMode, u_char);
|
| 895 |
|
|
READSHM(conf->priority, arlan->priority, u_char);
|
| 896 |
|
|
READSHM(conf->rootOrRepeater, arlan->rootOrRepeater, u_char);
|
| 897 |
|
|
|
| 898 |
|
|
if (SID == SIDUNKNOWN)
|
| 899 |
|
|
{
|
| 900 |
|
|
READSHM(conf->SID, arlan->SID, u_int);
|
| 901 |
|
|
}
|
| 902 |
|
|
else conf->SID = SID;
|
| 903 |
|
|
|
| 904 |
|
|
if (registrationMode == registrationModeUNKNOWN)
|
| 905 |
|
|
{
|
| 906 |
|
|
READSHM(conf->registrationMode, arlan->registrationMode, u_char);
|
| 907 |
|
|
}
|
| 908 |
|
|
else conf->registrationMode = registrationMode;
|
| 909 |
|
|
|
| 910 |
|
|
READSHM(conf->registrationFill, arlan->registrationFill, u_char);
|
| 911 |
|
|
READSHM(conf->localTalkAddress, arlan->localTalkAddress, u_char);
|
| 912 |
|
|
READSHM(conf->codeFormat, arlan->codeFormat, u_char);
|
| 913 |
|
|
READSHM(conf->numChannels, arlan->numChannels, u_char);
|
| 914 |
|
|
READSHM(conf->channel1, arlan->channel1, u_char);
|
| 915 |
|
|
READSHM(conf->channel2, arlan->channel2, u_char);
|
| 916 |
|
|
READSHM(conf->channel3, arlan->channel3, u_char);
|
| 917 |
|
|
READSHM(conf->channel4, arlan->channel4, u_char);
|
| 918 |
|
|
READSHM(conf->waitTime, arlan->waitTime, u_short);
|
| 919 |
|
|
READSHM(conf->lParameter, arlan->lParameter, u_short);
|
| 920 |
|
|
READSHM(conf->_15, arlan->_15, u_short);
|
| 921 |
|
|
READSHM(conf->headerSize, arlan->headerSize, u_short);
|
| 922 |
|
|
READSHM(conf->hardwareType, arlan->hardwareType, u_char);
|
| 923 |
|
|
READSHM(conf->radioType, arlan->radioModule, u_char);
|
| 924 |
|
|
|
| 925 |
|
|
if (conf->radioType == 0)
|
| 926 |
|
|
conf->radioType = 0xc;
|
| 927 |
|
|
|
| 928 |
|
|
WRITESHM(arlan->configStatus, 0xA5, u_char);
|
| 929 |
|
|
READSHM(tlx415, arlan->configStatus, u_char);
|
| 930 |
|
|
|
| 931 |
|
|
if (tlx415 != 0xA5)
|
| 932 |
|
|
printk(KERN_INFO "%s tlx415 chip \n", dev->name);
|
| 933 |
|
|
|
| 934 |
|
|
conf->txClear = 0;
|
| 935 |
|
|
conf->txRetries = 1;
|
| 936 |
|
|
conf->txRouting = 1;
|
| 937 |
|
|
conf->txScrambled = 0;
|
| 938 |
|
|
conf->rxParameter = 1;
|
| 939 |
|
|
conf->txTimeoutMs = 4000;
|
| 940 |
|
|
conf->waitCardTimeout = 100000;
|
| 941 |
|
|
conf->receiveMode = ARLAN_RCV_CLEAN;
|
| 942 |
|
|
memcpy_fromio(conf->siteName, arlan->name, 16);
|
| 943 |
|
|
conf->siteName[16] = '\0';
|
| 944 |
|
|
conf->retries = retries;
|
| 945 |
|
|
conf->tx_delay_ms = tx_delay_ms;
|
| 946 |
|
|
conf->ReTransmitPacketMaxSize = 200;
|
| 947 |
|
|
conf->waitReTransmitPacketMaxSize = 200;
|
| 948 |
|
|
conf->txAckTimeoutMs = 900;
|
| 949 |
|
|
conf->fastReTransCount = 3;
|
| 950 |
|
|
|
| 951 |
|
|
ARLAN_DEBUG_EXIT("arlan_read_card_configuration");
|
| 952 |
|
|
|
| 953 |
|
|
return 0;
|
| 954 |
|
|
}
|
| 955 |
|
|
|
| 956 |
|
|
|
| 957 |
|
|
static int lastFoundAt = 0xbe000;
|
| 958 |
|
|
|
| 959 |
|
|
|
| 960 |
|
|
/*
|
| 961 |
|
|
* This is the real probe routine. Linux has a history of friendly device
|
| 962 |
|
|
* probes on the ISA bus. A good device probes avoids doing writes, and
|
| 963 |
|
|
* verifies that the correct device exists and functions.
|
| 964 |
|
|
*/
|
| 965 |
|
|
#define ARLAN_SHMEM_SIZE 0x2000
|
| 966 |
|
|
static int __init arlan_check_fingerprint(unsigned long memaddr)
|
| 967 |
|
|
{
|
| 968 |
|
|
static const char probeText[] = "TELESYSTEM SLW INC. ARLAN \0";
|
| 969 |
|
|
volatile struct arlan_shmem __iomem *arlan = (struct arlan_shmem *) memaddr;
|
| 970 |
|
|
unsigned long paddr = virt_to_phys((void *) memaddr);
|
| 971 |
|
|
char tempBuf[49];
|
| 972 |
|
|
|
| 973 |
|
|
ARLAN_DEBUG_ENTRY("arlan_check_fingerprint");
|
| 974 |
|
|
|
| 975 |
|
|
if (!request_mem_region(paddr, ARLAN_SHMEM_SIZE, "arlan")) {
|
| 976 |
|
|
// printk(KERN_WARNING "arlan: memory region %lx excluded from probing \n",paddr);
|
| 977 |
|
|
return -ENODEV;
|
| 978 |
|
|
}
|
| 979 |
|
|
|
| 980 |
|
|
memcpy_fromio(tempBuf, arlan->textRegion, 29);
|
| 981 |
|
|
tempBuf[30] = 0;
|
| 982 |
|
|
|
| 983 |
|
|
/* check for card at this address */
|
| 984 |
|
|
if (0 != strncmp(tempBuf, probeText, 29)){
|
| 985 |
|
|
release_mem_region(paddr, ARLAN_SHMEM_SIZE);
|
| 986 |
|
|
return -ENODEV;
|
| 987 |
|
|
}
|
| 988 |
|
|
|
| 989 |
|
|
// printk(KERN_INFO "arlan found at 0x%x \n",memaddr);
|
| 990 |
|
|
ARLAN_DEBUG_EXIT("arlan_check_fingerprint");
|
| 991 |
|
|
|
| 992 |
|
|
return 0;
|
| 993 |
|
|
}
|
| 994 |
|
|
|
| 995 |
|
|
static int arlan_change_mtu(struct net_device *dev, int new_mtu)
|
| 996 |
|
|
{
|
| 997 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 998 |
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
| 999 |
|
|
|
| 1000 |
|
|
ARLAN_DEBUG_ENTRY("arlan_change_mtu");
|
| 1001 |
|
|
if (new_mtu > 2032)
|
| 1002 |
|
|
return -EINVAL;
|
| 1003 |
|
|
dev->mtu = new_mtu;
|
| 1004 |
|
|
if (new_mtu < 256)
|
| 1005 |
|
|
new_mtu = 256; /* cards book suggests 1600 */
|
| 1006 |
|
|
conf->maxDatagramSize = new_mtu;
|
| 1007 |
|
|
conf->maxFrameSize = new_mtu + 48;
|
| 1008 |
|
|
|
| 1009 |
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
|
| 1010 |
|
|
printk(KERN_NOTICE "%s mtu changed to %d \n", dev->name, new_mtu);
|
| 1011 |
|
|
|
| 1012 |
|
|
ARLAN_DEBUG_EXIT("arlan_change_mtu");
|
| 1013 |
|
|
|
| 1014 |
|
|
return 0;
|
| 1015 |
|
|
}
|
| 1016 |
|
|
|
| 1017 |
|
|
static int arlan_mac_addr(struct net_device *dev, void *p)
|
| 1018 |
|
|
{
|
| 1019 |
|
|
struct sockaddr *addr = p;
|
| 1020 |
|
|
|
| 1021 |
|
|
|
| 1022 |
|
|
ARLAN_DEBUG_ENTRY("arlan_mac_addr");
|
| 1023 |
|
|
return -EINVAL;
|
| 1024 |
|
|
|
| 1025 |
|
|
if (!netif_running(dev))
|
| 1026 |
|
|
return -EBUSY;
|
| 1027 |
|
|
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
| 1028 |
|
|
|
| 1029 |
|
|
ARLAN_DEBUG_EXIT("arlan_mac_addr");
|
| 1030 |
|
|
return 0;
|
| 1031 |
|
|
}
|
| 1032 |
|
|
|
| 1033 |
|
|
|
| 1034 |
|
|
|
| 1035 |
|
|
static int __init arlan_setup_device(struct net_device *dev, int num)
|
| 1036 |
|
|
{
|
| 1037 |
|
|
struct arlan_private *ap = netdev_priv(dev);
|
| 1038 |
|
|
int err;
|
| 1039 |
|
|
|
| 1040 |
|
|
ARLAN_DEBUG_ENTRY("arlan_setup_device");
|
| 1041 |
|
|
|
| 1042 |
|
|
ap->conf = (struct arlan_shmem *)(ap+1);
|
| 1043 |
|
|
|
| 1044 |
|
|
dev->tx_queue_len = tx_queue_len;
|
| 1045 |
|
|
dev->open = arlan_open;
|
| 1046 |
|
|
dev->stop = arlan_close;
|
| 1047 |
|
|
dev->hard_start_xmit = arlan_tx;
|
| 1048 |
|
|
dev->get_stats = arlan_statistics;
|
| 1049 |
|
|
dev->set_multicast_list = arlan_set_multicast;
|
| 1050 |
|
|
dev->change_mtu = arlan_change_mtu;
|
| 1051 |
|
|
dev->set_mac_address = arlan_mac_addr;
|
| 1052 |
|
|
dev->tx_timeout = arlan_tx_timeout;
|
| 1053 |
|
|
dev->watchdog_timeo = 3*HZ;
|
| 1054 |
|
|
|
| 1055 |
|
|
ap->irq_test_done = 0;
|
| 1056 |
|
|
ap->Conf = &arlan_conf[num];
|
| 1057 |
|
|
|
| 1058 |
|
|
ap->Conf->pre_Command_Wait = 40;
|
| 1059 |
|
|
ap->Conf->rx_tweak1 = 30;
|
| 1060 |
|
|
ap->Conf->rx_tweak2 = 0;
|
| 1061 |
|
|
|
| 1062 |
|
|
|
| 1063 |
|
|
err = register_netdev(dev);
|
| 1064 |
|
|
if (err) {
|
| 1065 |
|
|
release_mem_region(virt_to_phys((void *) dev->mem_start),
|
| 1066 |
|
|
ARLAN_SHMEM_SIZE);
|
| 1067 |
|
|
free_netdev(dev);
|
| 1068 |
|
|
return err;
|
| 1069 |
|
|
}
|
| 1070 |
|
|
arlan_device[num] = dev;
|
| 1071 |
|
|
ARLAN_DEBUG_EXIT("arlan_setup_device");
|
| 1072 |
|
|
return 0;
|
| 1073 |
|
|
}
|
| 1074 |
|
|
|
| 1075 |
|
|
static int __init arlan_probe_here(struct net_device *dev,
|
| 1076 |
|
|
unsigned long memaddr)
|
| 1077 |
|
|
{
|
| 1078 |
|
|
struct arlan_private *ap = netdev_priv(dev);
|
| 1079 |
|
|
|
| 1080 |
|
|
ARLAN_DEBUG_ENTRY("arlan_probe_here");
|
| 1081 |
|
|
|
| 1082 |
|
|
if (arlan_check_fingerprint(memaddr))
|
| 1083 |
|
|
return -ENODEV;
|
| 1084 |
|
|
|
| 1085 |
|
|
printk(KERN_NOTICE "%s: Arlan found at %x, \n ", dev->name,
|
| 1086 |
|
|
(int) virt_to_phys((void*)memaddr));
|
| 1087 |
|
|
|
| 1088 |
|
|
ap->card = (void *) memaddr;
|
| 1089 |
|
|
dev->mem_start = memaddr;
|
| 1090 |
|
|
dev->mem_end = memaddr + ARLAN_SHMEM_SIZE-1;
|
| 1091 |
|
|
|
| 1092 |
|
|
if (dev->irq < 2)
|
| 1093 |
|
|
{
|
| 1094 |
|
|
READSHM(dev->irq, ap->card->irqLevel, u_char);
|
| 1095 |
|
|
} else if (dev->irq == 2)
|
| 1096 |
|
|
dev->irq = 9;
|
| 1097 |
|
|
|
| 1098 |
|
|
arlan_read_card_configuration(dev);
|
| 1099 |
|
|
|
| 1100 |
|
|
ARLAN_DEBUG_EXIT("arlan_probe_here");
|
| 1101 |
|
|
return 0;
|
| 1102 |
|
|
}
|
| 1103 |
|
|
|
| 1104 |
|
|
|
| 1105 |
|
|
static int arlan_open(struct net_device *dev)
|
| 1106 |
|
|
{
|
| 1107 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1108 |
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
| 1109 |
|
|
int ret = 0;
|
| 1110 |
|
|
|
| 1111 |
|
|
ARLAN_DEBUG_ENTRY("arlan_open");
|
| 1112 |
|
|
|
| 1113 |
|
|
ret = request_irq(dev->irq, &arlan_interrupt, 0, dev->name, dev);
|
| 1114 |
|
|
if (ret)
|
| 1115 |
|
|
{
|
| 1116 |
|
|
printk(KERN_ERR "%s: unable to get IRQ %d .\n",
|
| 1117 |
|
|
dev->name, dev->irq);
|
| 1118 |
|
|
return ret;
|
| 1119 |
|
|
}
|
| 1120 |
|
|
|
| 1121 |
|
|
|
| 1122 |
|
|
priv->bad = 0;
|
| 1123 |
|
|
priv->lastReset = 0;
|
| 1124 |
|
|
priv->reset = 0;
|
| 1125 |
|
|
memcpy_fromio(dev->dev_addr, arlan->lanCardNodeId, 6);
|
| 1126 |
|
|
memset(dev->broadcast, 0xff, 6);
|
| 1127 |
|
|
dev->tx_queue_len = tx_queue_len;
|
| 1128 |
|
|
priv->interrupt_processing_active = 0;
|
| 1129 |
|
|
spin_lock_init(&priv->lock);
|
| 1130 |
|
|
|
| 1131 |
|
|
netif_start_queue (dev);
|
| 1132 |
|
|
|
| 1133 |
|
|
priv->registrationLostCount = 0;
|
| 1134 |
|
|
priv->registrationLastSeen = jiffies;
|
| 1135 |
|
|
priv->txLast = 0;
|
| 1136 |
|
|
priv->tx_command_given = 0;
|
| 1137 |
|
|
priv->rx_command_given = 0;
|
| 1138 |
|
|
|
| 1139 |
|
|
priv->reRegisterExp = 1;
|
| 1140 |
|
|
priv->tx_last_sent = jiffies - 1;
|
| 1141 |
|
|
priv->tx_last_cleared = jiffies;
|
| 1142 |
|
|
priv->Conf->writeEEPROM = 0;
|
| 1143 |
|
|
priv->Conf->registrationInterrupts = 1;
|
| 1144 |
|
|
|
| 1145 |
|
|
init_timer(&priv->timer);
|
| 1146 |
|
|
priv->timer.expires = jiffies + HZ / 10;
|
| 1147 |
|
|
priv->timer.data = (unsigned long) dev;
|
| 1148 |
|
|
priv->timer.function = &arlan_registration_timer; /* timer handler */
|
| 1149 |
|
|
|
| 1150 |
|
|
arlan_command(dev, ARLAN_COMMAND_POWERUP | ARLAN_COMMAND_LONG_WAIT_NOW);
|
| 1151 |
|
|
mdelay(200);
|
| 1152 |
|
|
add_timer(&priv->timer);
|
| 1153 |
|
|
|
| 1154 |
|
|
ARLAN_DEBUG_EXIT("arlan_open");
|
| 1155 |
|
|
return 0;
|
| 1156 |
|
|
}
|
| 1157 |
|
|
|
| 1158 |
|
|
|
| 1159 |
|
|
static void arlan_tx_timeout (struct net_device *dev)
|
| 1160 |
|
|
{
|
| 1161 |
|
|
printk(KERN_ERR "%s: arlan transmit timed out, kernel decided\n", dev->name);
|
| 1162 |
|
|
/* Try to restart the adaptor. */
|
| 1163 |
|
|
arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
|
| 1164 |
|
|
// dev->trans_start = jiffies;
|
| 1165 |
|
|
// netif_start_queue (dev);
|
| 1166 |
|
|
}
|
| 1167 |
|
|
|
| 1168 |
|
|
|
| 1169 |
|
|
static int arlan_tx(struct sk_buff *skb, struct net_device *dev)
|
| 1170 |
|
|
{
|
| 1171 |
|
|
short length;
|
| 1172 |
|
|
unsigned char *buf;
|
| 1173 |
|
|
|
| 1174 |
|
|
ARLAN_DEBUG_ENTRY("arlan_tx");
|
| 1175 |
|
|
|
| 1176 |
|
|
length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
|
| 1177 |
|
|
buf = skb->data;
|
| 1178 |
|
|
|
| 1179 |
|
|
if (length + 0x12 > 0x800) {
|
| 1180 |
|
|
printk(KERN_ERR "TX RING overflow \n");
|
| 1181 |
|
|
netif_stop_queue (dev);
|
| 1182 |
|
|
}
|
| 1183 |
|
|
|
| 1184 |
|
|
if (arlan_hw_tx(dev, buf, length) == -1)
|
| 1185 |
|
|
goto bad_end;
|
| 1186 |
|
|
|
| 1187 |
|
|
dev->trans_start = jiffies;
|
| 1188 |
|
|
|
| 1189 |
|
|
dev_kfree_skb(skb);
|
| 1190 |
|
|
|
| 1191 |
|
|
arlan_process_interrupt(dev);
|
| 1192 |
|
|
ARLAN_DEBUG_EXIT("arlan_tx");
|
| 1193 |
|
|
return 0;
|
| 1194 |
|
|
|
| 1195 |
|
|
bad_end:
|
| 1196 |
|
|
arlan_process_interrupt(dev);
|
| 1197 |
|
|
netif_stop_queue (dev);
|
| 1198 |
|
|
ARLAN_DEBUG_EXIT("arlan_tx");
|
| 1199 |
|
|
return 1;
|
| 1200 |
|
|
}
|
| 1201 |
|
|
|
| 1202 |
|
|
|
| 1203 |
|
|
static inline int DoNotReTransmitCrap(struct net_device *dev)
|
| 1204 |
|
|
{
|
| 1205 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1206 |
|
|
|
| 1207 |
|
|
if (TXLAST(dev).length < priv->Conf->ReTransmitPacketMaxSize)
|
| 1208 |
|
|
return 1;
|
| 1209 |
|
|
return 0;
|
| 1210 |
|
|
|
| 1211 |
|
|
}
|
| 1212 |
|
|
|
| 1213 |
|
|
static inline int DoNotWaitReTransmitCrap(struct net_device *dev)
|
| 1214 |
|
|
{
|
| 1215 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1216 |
|
|
|
| 1217 |
|
|
if (TXLAST(dev).length < priv->Conf->waitReTransmitPacketMaxSize)
|
| 1218 |
|
|
return 1;
|
| 1219 |
|
|
return 0;
|
| 1220 |
|
|
}
|
| 1221 |
|
|
|
| 1222 |
|
|
static inline void arlan_queue_retransmit(struct net_device *dev)
|
| 1223 |
|
|
{
|
| 1224 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1225 |
|
|
|
| 1226 |
|
|
ARLAN_DEBUG_ENTRY("arlan_queue_retransmit");
|
| 1227 |
|
|
|
| 1228 |
|
|
if (DoNotWaitReTransmitCrap(dev))
|
| 1229 |
|
|
{
|
| 1230 |
|
|
arlan_drop_tx(dev);
|
| 1231 |
|
|
} else
|
| 1232 |
|
|
priv->ReTransmitRequested++;
|
| 1233 |
|
|
|
| 1234 |
|
|
ARLAN_DEBUG_EXIT("arlan_queue_retransmit");
|
| 1235 |
|
|
}
|
| 1236 |
|
|
|
| 1237 |
|
|
static inline void RetryOrFail(struct net_device *dev)
|
| 1238 |
|
|
{
|
| 1239 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1240 |
|
|
|
| 1241 |
|
|
ARLAN_DEBUG_ENTRY("RetryOrFail");
|
| 1242 |
|
|
|
| 1243 |
|
|
if (priv->retransmissions > priv->Conf->retries ||
|
| 1244 |
|
|
DoNotReTransmitCrap(dev))
|
| 1245 |
|
|
{
|
| 1246 |
|
|
arlan_drop_tx(dev);
|
| 1247 |
|
|
}
|
| 1248 |
|
|
else if (priv->bad <= priv->Conf->fastReTransCount)
|
| 1249 |
|
|
{
|
| 1250 |
|
|
arlan_retransmit_now(dev);
|
| 1251 |
|
|
}
|
| 1252 |
|
|
else arlan_queue_retransmit(dev);
|
| 1253 |
|
|
|
| 1254 |
|
|
ARLAN_DEBUG_EXIT("RetryOrFail");
|
| 1255 |
|
|
}
|
| 1256 |
|
|
|
| 1257 |
|
|
|
| 1258 |
|
|
static void arlan_tx_done_interrupt(struct net_device *dev, int status)
|
| 1259 |
|
|
{
|
| 1260 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1261 |
|
|
|
| 1262 |
|
|
ARLAN_DEBUG_ENTRY("arlan_tx_done_interrupt");
|
| 1263 |
|
|
|
| 1264 |
|
|
priv->tx_last_cleared = jiffies;
|
| 1265 |
|
|
priv->tx_command_given = 0;
|
| 1266 |
|
|
switch (status)
|
| 1267 |
|
|
{
|
| 1268 |
|
|
case 1:
|
| 1269 |
|
|
{
|
| 1270 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 1271 |
|
|
printk("arlan intr: transmit OK\n");
|
| 1272 |
|
|
priv->stats.tx_packets++;
|
| 1273 |
|
|
priv->bad = 0;
|
| 1274 |
|
|
priv->reset = 0;
|
| 1275 |
|
|
priv->retransmissions = 0;
|
| 1276 |
|
|
if (priv->Conf->tx_delay_ms)
|
| 1277 |
|
|
{
|
| 1278 |
|
|
priv->tx_done_delayed = jiffies + (priv->Conf->tx_delay_ms * HZ) / 1000 + 1;
|
| 1279 |
|
|
}
|
| 1280 |
|
|
else
|
| 1281 |
|
|
{
|
| 1282 |
|
|
TXLAST(dev).offset = 0;
|
| 1283 |
|
|
if (priv->txLast)
|
| 1284 |
|
|
priv->txLast = 0;
|
| 1285 |
|
|
else if (TXTAIL(dev).offset)
|
| 1286 |
|
|
priv->txLast = 1;
|
| 1287 |
|
|
if (TXLAST(dev).offset)
|
| 1288 |
|
|
{
|
| 1289 |
|
|
arlan_retransmit_now(dev);
|
| 1290 |
|
|
dev->trans_start = jiffies;
|
| 1291 |
|
|
}
|
| 1292 |
|
|
if (!TXHEAD(dev).offset || !TXTAIL(dev).offset)
|
| 1293 |
|
|
{
|
| 1294 |
|
|
netif_wake_queue (dev);
|
| 1295 |
|
|
}
|
| 1296 |
|
|
}
|
| 1297 |
|
|
}
|
| 1298 |
|
|
break;
|
| 1299 |
|
|
|
| 1300 |
|
|
case 2:
|
| 1301 |
|
|
{
|
| 1302 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 1303 |
|
|
printk("arlan intr: transmit timed out\n");
|
| 1304 |
|
|
priv->bad += 1;
|
| 1305 |
|
|
//arlan_queue_retransmit(dev);
|
| 1306 |
|
|
RetryOrFail(dev);
|
| 1307 |
|
|
}
|
| 1308 |
|
|
break;
|
| 1309 |
|
|
|
| 1310 |
|
|
case 3:
|
| 1311 |
|
|
{
|
| 1312 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 1313 |
|
|
printk("arlan intr: transmit max retries\n");
|
| 1314 |
|
|
priv->bad += 1;
|
| 1315 |
|
|
priv->reset = 0;
|
| 1316 |
|
|
//arlan_queue_retransmit(dev);
|
| 1317 |
|
|
RetryOrFail(dev);
|
| 1318 |
|
|
}
|
| 1319 |
|
|
break;
|
| 1320 |
|
|
|
| 1321 |
|
|
case 4:
|
| 1322 |
|
|
{
|
| 1323 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 1324 |
|
|
printk("arlan intr: transmit aborted\n");
|
| 1325 |
|
|
priv->bad += 1;
|
| 1326 |
|
|
arlan_queue_retransmit(dev);
|
| 1327 |
|
|
//RetryOrFail(dev);
|
| 1328 |
|
|
}
|
| 1329 |
|
|
break;
|
| 1330 |
|
|
|
| 1331 |
|
|
case 5:
|
| 1332 |
|
|
{
|
| 1333 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 1334 |
|
|
printk("arlan intr: transmit not registered\n");
|
| 1335 |
|
|
priv->bad += 1;
|
| 1336 |
|
|
//debug=101;
|
| 1337 |
|
|
arlan_queue_retransmit(dev);
|
| 1338 |
|
|
}
|
| 1339 |
|
|
break;
|
| 1340 |
|
|
|
| 1341 |
|
|
case 6:
|
| 1342 |
|
|
{
|
| 1343 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 1344 |
|
|
printk("arlan intr: transmit destination full\n");
|
| 1345 |
|
|
priv->bad += 1;
|
| 1346 |
|
|
priv->reset = 0;
|
| 1347 |
|
|
//arlan_drop_tx(dev);
|
| 1348 |
|
|
arlan_queue_retransmit(dev);
|
| 1349 |
|
|
}
|
| 1350 |
|
|
break;
|
| 1351 |
|
|
|
| 1352 |
|
|
case 7:
|
| 1353 |
|
|
{
|
| 1354 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 1355 |
|
|
printk("arlan intr: transmit unknown ack\n");
|
| 1356 |
|
|
priv->bad += 1;
|
| 1357 |
|
|
priv->reset = 0;
|
| 1358 |
|
|
arlan_queue_retransmit(dev);
|
| 1359 |
|
|
}
|
| 1360 |
|
|
break;
|
| 1361 |
|
|
|
| 1362 |
|
|
case 8:
|
| 1363 |
|
|
{
|
| 1364 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 1365 |
|
|
printk("arlan intr: transmit dest mail box full\n");
|
| 1366 |
|
|
priv->bad += 1;
|
| 1367 |
|
|
priv->reset = 0;
|
| 1368 |
|
|
//arlan_drop_tx(dev);
|
| 1369 |
|
|
arlan_queue_retransmit(dev);
|
| 1370 |
|
|
}
|
| 1371 |
|
|
break;
|
| 1372 |
|
|
|
| 1373 |
|
|
case 9:
|
| 1374 |
|
|
{
|
| 1375 |
|
|
IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
|
| 1376 |
|
|
printk("arlan intr: transmit root dest not reg.\n");
|
| 1377 |
|
|
priv->bad += 1;
|
| 1378 |
|
|
priv->reset = 1;
|
| 1379 |
|
|
//arlan_drop_tx(dev);
|
| 1380 |
|
|
arlan_queue_retransmit(dev);
|
| 1381 |
|
|
}
|
| 1382 |
|
|
break;
|
| 1383 |
|
|
|
| 1384 |
|
|
default:
|
| 1385 |
|
|
{
|
| 1386 |
|
|
printk(KERN_ERR "arlan intr: transmit status unknown\n");
|
| 1387 |
|
|
priv->bad += 1;
|
| 1388 |
|
|
priv->reset = 1;
|
| 1389 |
|
|
arlan_drop_tx(dev);
|
| 1390 |
|
|
}
|
| 1391 |
|
|
}
|
| 1392 |
|
|
|
| 1393 |
|
|
ARLAN_DEBUG_EXIT("arlan_tx_done_interrupt");
|
| 1394 |
|
|
}
|
| 1395 |
|
|
|
| 1396 |
|
|
|
| 1397 |
|
|
static void arlan_rx_interrupt(struct net_device *dev, u_char rxStatus, u_short rxOffset, u_short pkt_len)
|
| 1398 |
|
|
{
|
| 1399 |
|
|
char *skbtmp;
|
| 1400 |
|
|
int i = 0;
|
| 1401 |
|
|
|
| 1402 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1403 |
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
| 1404 |
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
| 1405 |
|
|
|
| 1406 |
|
|
|
| 1407 |
|
|
ARLAN_DEBUG_ENTRY("arlan_rx_interrupt");
|
| 1408 |
|
|
// by spec, not WRITESHMB(arlan->rxStatus,0x00);
|
| 1409 |
|
|
// prohibited here arlan_command(dev, ARLAN_COMMAND_RX);
|
| 1410 |
|
|
|
| 1411 |
|
|
if (pkt_len < 10 || pkt_len > 2048)
|
| 1412 |
|
|
{
|
| 1413 |
|
|
printk(KERN_WARNING "%s: got too short or long packet, len %d \n", dev->name, pkt_len);
|
| 1414 |
|
|
return;
|
| 1415 |
|
|
}
|
| 1416 |
|
|
if (rxOffset + pkt_len > 0x2000)
|
| 1417 |
|
|
{
|
| 1418 |
|
|
printk("%s: got too long packet, len %d offset %x\n", dev->name, pkt_len, rxOffset);
|
| 1419 |
|
|
return;
|
| 1420 |
|
|
}
|
| 1421 |
|
|
priv->in_bytes += pkt_len;
|
| 1422 |
|
|
priv->in_bytes10 += pkt_len;
|
| 1423 |
|
|
if (conf->measure_rate < 1)
|
| 1424 |
|
|
conf->measure_rate = 1;
|
| 1425 |
|
|
if (time_after(jiffies, priv->in_time + conf->measure_rate * HZ))
|
| 1426 |
|
|
{
|
| 1427 |
|
|
conf->in_speed = priv->in_bytes / conf->measure_rate;
|
| 1428 |
|
|
priv->in_bytes = 0;
|
| 1429 |
|
|
priv->in_time = jiffies;
|
| 1430 |
|
|
}
|
| 1431 |
|
|
if (time_after(jiffies, priv->in_time10 + conf->measure_rate * 10*HZ))
|
| 1432 |
|
|
{
|
| 1433 |
|
|
conf->in_speed10 = priv->in_bytes10 / (10 * conf->measure_rate);
|
| 1434 |
|
|
priv->in_bytes10 = 0;
|
| 1435 |
|
|
priv->in_time10 = jiffies;
|
| 1436 |
|
|
}
|
| 1437 |
|
|
DEBUGSHM(1, "arlan rcv pkt rxStatus= %d ", arlan->rxStatus, u_char);
|
| 1438 |
|
|
switch (rxStatus)
|
| 1439 |
|
|
{
|
| 1440 |
|
|
case 1:
|
| 1441 |
|
|
case 2:
|
| 1442 |
|
|
case 3:
|
| 1443 |
|
|
{
|
| 1444 |
|
|
/* Malloc up new buffer. */
|
| 1445 |
|
|
struct sk_buff *skb;
|
| 1446 |
|
|
|
| 1447 |
|
|
DEBUGSHM(50, "arlan recv pkt offs=%d\n", arlan->rxOffset, u_short);
|
| 1448 |
|
|
DEBUGSHM(1, "arlan rxFrmType = %d \n", arlan->rxFrmType, u_char);
|
| 1449 |
|
|
DEBUGSHM(1, KERN_INFO "arlan rx scrambled = %d \n", arlan->scrambled, u_char);
|
| 1450 |
|
|
|
| 1451 |
|
|
/* here we do multicast filtering to avoid slow 8-bit memcopy */
|
| 1452 |
|
|
#ifdef ARLAN_MULTICAST
|
| 1453 |
|
|
if (!(dev->flags & IFF_ALLMULTI) &&
|
| 1454 |
|
|
!(dev->flags & IFF_PROMISC) &&
|
| 1455 |
|
|
dev->mc_list)
|
| 1456 |
|
|
{
|
| 1457 |
|
|
char hw_dst_addr[6];
|
| 1458 |
|
|
struct dev_mc_list *dmi = dev->mc_list;
|
| 1459 |
|
|
int i;
|
| 1460 |
|
|
|
| 1461 |
|
|
memcpy_fromio(hw_dst_addr, arlan->ultimateDestAddress, 6);
|
| 1462 |
|
|
if (hw_dst_addr[0] == 0x01)
|
| 1463 |
|
|
{
|
| 1464 |
|
|
if (mdebug)
|
| 1465 |
|
|
if (hw_dst_addr[1] == 0x00)
|
| 1466 |
|
|
printk(KERN_ERR "%s mcast 0x0100 \n", dev->name);
|
| 1467 |
|
|
else if (hw_dst_addr[1] == 0x40)
|
| 1468 |
|
|
printk(KERN_ERR "%s m/bcast 0x0140 \n", dev->name);
|
| 1469 |
|
|
while (dmi)
|
| 1470 |
|
|
{ if (dmi->dmi_addrlen == 6)
|
| 1471 |
|
|
{
|
| 1472 |
|
|
DECLARE_MAC_BUF(mac);
|
| 1473 |
|
|
if (arlan_debug & ARLAN_DEBUG_HEADER_DUMP)
|
| 1474 |
|
|
printk(KERN_ERR "%s mcl %s\n",
|
| 1475 |
|
|
dev->name, print_mac(mac, dmi->dmi_addr));
|
| 1476 |
|
|
for (i = 0; i < 6; i++)
|
| 1477 |
|
|
if (dmi->dmi_addr[i] != hw_dst_addr[i])
|
| 1478 |
|
|
break;
|
| 1479 |
|
|
if (i == 6)
|
| 1480 |
|
|
break;
|
| 1481 |
|
|
}
|
| 1482 |
|
|
else
|
| 1483 |
|
|
printk(KERN_ERR "%s: invalid multicast address length given.\n", dev->name);
|
| 1484 |
|
|
dmi = dmi->next;
|
| 1485 |
|
|
}
|
| 1486 |
|
|
/* we reach here if multicast filtering is on and packet
|
| 1487 |
|
|
* is multicast and not for receive */
|
| 1488 |
|
|
goto end_of_interrupt;
|
| 1489 |
|
|
}
|
| 1490 |
|
|
}
|
| 1491 |
|
|
#endif // ARLAN_MULTICAST
|
| 1492 |
|
|
/* multicast filtering ends here */
|
| 1493 |
|
|
pkt_len += ARLAN_FAKE_HDR_LEN;
|
| 1494 |
|
|
|
| 1495 |
|
|
skb = dev_alloc_skb(pkt_len + 4);
|
| 1496 |
|
|
if (skb == NULL)
|
| 1497 |
|
|
{
|
| 1498 |
|
|
printk(KERN_ERR "%s: Memory squeeze, dropping packet.\n", dev->name);
|
| 1499 |
|
|
priv->stats.rx_dropped++;
|
| 1500 |
|
|
break;
|
| 1501 |
|
|
}
|
| 1502 |
|
|
skb_reserve(skb, 2);
|
| 1503 |
|
|
skbtmp = skb_put(skb, pkt_len);
|
| 1504 |
|
|
|
| 1505 |
|
|
memcpy_fromio(skbtmp + ARLAN_FAKE_HDR_LEN, ((char __iomem *) arlan) + rxOffset, pkt_len - ARLAN_FAKE_HDR_LEN);
|
| 1506 |
|
|
memcpy_fromio(skbtmp, arlan->ultimateDestAddress, 6);
|
| 1507 |
|
|
memcpy_fromio(skbtmp + 6, arlan->rxSrc, 6);
|
| 1508 |
|
|
WRITESHMB(arlan->rxStatus, 0x00);
|
| 1509 |
|
|
arlan_command(dev, ARLAN_COMMAND_RX);
|
| 1510 |
|
|
|
| 1511 |
|
|
IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
|
| 1512 |
|
|
{
|
| 1513 |
|
|
char immedDestAddress[6];
|
| 1514 |
|
|
char immedSrcAddress[6];
|
| 1515 |
|
|
DECLARE_MAC_BUF(mac);
|
| 1516 |
|
|
DECLARE_MAC_BUF(mac2);
|
| 1517 |
|
|
DECLARE_MAC_BUF(mac3);
|
| 1518 |
|
|
DECLARE_MAC_BUF(mac4);
|
| 1519 |
|
|
memcpy_fromio(immedDestAddress, arlan->immedDestAddress, 6);
|
| 1520 |
|
|
memcpy_fromio(immedSrcAddress, arlan->immedSrcAddress, 6);
|
| 1521 |
|
|
|
| 1522 |
|
|
printk(KERN_WARNING "%s t %s f %s imd %s ims %s\n",
|
| 1523 |
|
|
dev->name, print_mac(mac, skbtmp),
|
| 1524 |
|
|
print_mac(mac2, &skbtmp[6]),
|
| 1525 |
|
|
print_mac(mac3, immedDestAddress),
|
| 1526 |
|
|
print_mac(mac4, immedSrcAddress));
|
| 1527 |
|
|
}
|
| 1528 |
|
|
skb->protocol = eth_type_trans(skb, dev);
|
| 1529 |
|
|
IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
|
| 1530 |
|
|
if (skb->protocol != 0x608 && skb->protocol != 0x8)
|
| 1531 |
|
|
{
|
| 1532 |
|
|
for (i = 0; i <= 22; i++)
|
| 1533 |
|
|
printk("%02x:", (u_char) skbtmp[i + 12]);
|
| 1534 |
|
|
printk(KERN_ERR "\n");
|
| 1535 |
|
|
printk(KERN_WARNING "arlan kernel pkt type trans %x \n", skb->protocol);
|
| 1536 |
|
|
}
|
| 1537 |
|
|
netif_rx(skb);
|
| 1538 |
|
|
dev->last_rx = jiffies;
|
| 1539 |
|
|
priv->stats.rx_packets++;
|
| 1540 |
|
|
priv->stats.rx_bytes += pkt_len;
|
| 1541 |
|
|
}
|
| 1542 |
|
|
break;
|
| 1543 |
|
|
|
| 1544 |
|
|
default:
|
| 1545 |
|
|
printk(KERN_ERR "arlan intr: received unknown status\n");
|
| 1546 |
|
|
priv->stats.rx_crc_errors++;
|
| 1547 |
|
|
break;
|
| 1548 |
|
|
}
|
| 1549 |
|
|
ARLAN_DEBUG_EXIT("arlan_rx_interrupt");
|
| 1550 |
|
|
}
|
| 1551 |
|
|
|
| 1552 |
|
|
static void arlan_process_interrupt(struct net_device *dev)
|
| 1553 |
|
|
{
|
| 1554 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1555 |
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
| 1556 |
|
|
u_char rxStatus = READSHMB(arlan->rxStatus);
|
| 1557 |
|
|
u_char txStatus = READSHMB(arlan->txStatus);
|
| 1558 |
|
|
u_short rxOffset = READSHMS(arlan->rxOffset);
|
| 1559 |
|
|
u_short pkt_len = READSHMS(arlan->rxLength);
|
| 1560 |
|
|
int interrupt_count = 0;
|
| 1561 |
|
|
|
| 1562 |
|
|
ARLAN_DEBUG_ENTRY("arlan_process_interrupt");
|
| 1563 |
|
|
|
| 1564 |
|
|
if (test_and_set_bit(0, (void *) &priv->interrupt_processing_active))
|
| 1565 |
|
|
{
|
| 1566 |
|
|
if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
|
| 1567 |
|
|
printk(KERN_ERR "interrupt chain reentering \n");
|
| 1568 |
|
|
goto end_int_process;
|
| 1569 |
|
|
}
|
| 1570 |
|
|
while ((rxStatus || txStatus || priv->interrupt_ack_requested)
|
| 1571 |
|
|
&& (interrupt_count < 5))
|
| 1572 |
|
|
{
|
| 1573 |
|
|
if (rxStatus)
|
| 1574 |
|
|
priv->last_rx_int_ack_time = jiffies;
|
| 1575 |
|
|
|
| 1576 |
|
|
arlan_command(dev, ARLAN_COMMAND_INT_ACK);
|
| 1577 |
|
|
arlan_command(dev, ARLAN_COMMAND_INT_ENABLE);
|
| 1578 |
|
|
|
| 1579 |
|
|
IFDEBUG(ARLAN_DEBUG_INTERRUPT)
|
| 1580 |
|
|
printk(KERN_ERR "%s: got IRQ rx %x tx %x comm %x rxOff %x rxLen %x \n",
|
| 1581 |
|
|
dev->name, rxStatus, txStatus, READSHMB(arlan->commandByte),
|
| 1582 |
|
|
rxOffset, pkt_len);
|
| 1583 |
|
|
|
| 1584 |
|
|
if (rxStatus == 0 && txStatus == 0)
|
| 1585 |
|
|
{
|
| 1586 |
|
|
if (priv->irq_test_done)
|
| 1587 |
|
|
{
|
| 1588 |
|
|
if (!registrationBad(dev))
|
| 1589 |
|
|
IFDEBUG(ARLAN_DEBUG_INTERRUPT) printk(KERN_ERR "%s unknown interrupt(nop? regLost ?) reason tx %d rx %d ",
|
| 1590 |
|
|
dev->name, txStatus, rxStatus);
|
| 1591 |
|
|
} else {
|
| 1592 |
|
|
IFDEBUG(ARLAN_DEBUG_INTERRUPT)
|
| 1593 |
|
|
printk(KERN_INFO "%s irq $%d test OK \n", dev->name, dev->irq);
|
| 1594 |
|
|
|
| 1595 |
|
|
}
|
| 1596 |
|
|
priv->interrupt_ack_requested = 0;
|
| 1597 |
|
|
goto ends;
|
| 1598 |
|
|
}
|
| 1599 |
|
|
if (txStatus != 0)
|
| 1600 |
|
|
{
|
| 1601 |
|
|
WRITESHMB(arlan->txStatus, 0x00);
|
| 1602 |
|
|
arlan_tx_done_interrupt(dev, txStatus);
|
| 1603 |
|
|
goto ends;
|
| 1604 |
|
|
}
|
| 1605 |
|
|
if (rxStatus == 1 || rxStatus == 2)
|
| 1606 |
|
|
{ /* a packet waiting */
|
| 1607 |
|
|
arlan_rx_interrupt(dev, rxStatus, rxOffset, pkt_len);
|
| 1608 |
|
|
goto ends;
|
| 1609 |
|
|
}
|
| 1610 |
|
|
if (rxStatus > 2 && rxStatus < 0xff)
|
| 1611 |
|
|
{
|
| 1612 |
|
|
WRITESHMB(arlan->rxStatus, 0x00);
|
| 1613 |
|
|
printk(KERN_ERR "%s unknown rxStatus reason tx %d rx %d ",
|
| 1614 |
|
|
dev->name, txStatus, rxStatus);
|
| 1615 |
|
|
goto ends;
|
| 1616 |
|
|
}
|
| 1617 |
|
|
if (rxStatus == 0xff)
|
| 1618 |
|
|
{
|
| 1619 |
|
|
WRITESHMB(arlan->rxStatus, 0x00);
|
| 1620 |
|
|
arlan_command(dev, ARLAN_COMMAND_RX);
|
| 1621 |
|
|
if (registrationBad(dev))
|
| 1622 |
|
|
netif_device_detach(dev);
|
| 1623 |
|
|
if (!registrationBad(dev))
|
| 1624 |
|
|
{
|
| 1625 |
|
|
priv->registrationLastSeen = jiffies;
|
| 1626 |
|
|
if (!netif_queue_stopped(dev) && !priv->under_reset && !priv->under_config)
|
| 1627 |
|
|
netif_wake_queue (dev);
|
| 1628 |
|
|
}
|
| 1629 |
|
|
goto ends;
|
| 1630 |
|
|
}
|
| 1631 |
|
|
ends:
|
| 1632 |
|
|
|
| 1633 |
|
|
arlan_command_process(dev);
|
| 1634 |
|
|
|
| 1635 |
|
|
rxStatus = READSHMB(arlan->rxStatus);
|
| 1636 |
|
|
txStatus = READSHMB(arlan->txStatus);
|
| 1637 |
|
|
rxOffset = READSHMS(arlan->rxOffset);
|
| 1638 |
|
|
pkt_len = READSHMS(arlan->rxLength);
|
| 1639 |
|
|
|
| 1640 |
|
|
|
| 1641 |
|
|
priv->irq_test_done = 1;
|
| 1642 |
|
|
|
| 1643 |
|
|
interrupt_count++;
|
| 1644 |
|
|
}
|
| 1645 |
|
|
priv->interrupt_processing_active = 0;
|
| 1646 |
|
|
|
| 1647 |
|
|
end_int_process:
|
| 1648 |
|
|
arlan_command_process(dev);
|
| 1649 |
|
|
|
| 1650 |
|
|
ARLAN_DEBUG_EXIT("arlan_process_interrupt");
|
| 1651 |
|
|
return;
|
| 1652 |
|
|
}
|
| 1653 |
|
|
|
| 1654 |
|
|
static irqreturn_t arlan_interrupt(int irq, void *dev_id)
|
| 1655 |
|
|
{
|
| 1656 |
|
|
struct net_device *dev = dev_id;
|
| 1657 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1658 |
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
| 1659 |
|
|
u_char rxStatus = READSHMB(arlan->rxStatus);
|
| 1660 |
|
|
u_char txStatus = READSHMB(arlan->txStatus);
|
| 1661 |
|
|
|
| 1662 |
|
|
ARLAN_DEBUG_ENTRY("arlan_interrupt");
|
| 1663 |
|
|
|
| 1664 |
|
|
|
| 1665 |
|
|
if (!rxStatus && !txStatus)
|
| 1666 |
|
|
priv->interrupt_ack_requested++;
|
| 1667 |
|
|
|
| 1668 |
|
|
arlan_process_interrupt(dev);
|
| 1669 |
|
|
|
| 1670 |
|
|
priv->irq_test_done = 1;
|
| 1671 |
|
|
|
| 1672 |
|
|
ARLAN_DEBUG_EXIT("arlan_interrupt");
|
| 1673 |
|
|
return IRQ_HANDLED;
|
| 1674 |
|
|
|
| 1675 |
|
|
}
|
| 1676 |
|
|
|
| 1677 |
|
|
|
| 1678 |
|
|
static int arlan_close(struct net_device *dev)
|
| 1679 |
|
|
{
|
| 1680 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1681 |
|
|
|
| 1682 |
|
|
ARLAN_DEBUG_ENTRY("arlan_close");
|
| 1683 |
|
|
|
| 1684 |
|
|
del_timer_sync(&priv->timer);
|
| 1685 |
|
|
|
| 1686 |
|
|
arlan_command(dev, ARLAN_COMMAND_POWERDOWN);
|
| 1687 |
|
|
|
| 1688 |
|
|
IFDEBUG(ARLAN_DEBUG_STARTUP)
|
| 1689 |
|
|
printk(KERN_NOTICE "%s: Closing device\n", dev->name);
|
| 1690 |
|
|
|
| 1691 |
|
|
netif_stop_queue(dev);
|
| 1692 |
|
|
free_irq(dev->irq, dev);
|
| 1693 |
|
|
|
| 1694 |
|
|
ARLAN_DEBUG_EXIT("arlan_close");
|
| 1695 |
|
|
return 0;
|
| 1696 |
|
|
}
|
| 1697 |
|
|
|
| 1698 |
|
|
#ifdef ARLAN_DEBUGGING
|
| 1699 |
|
|
static long alignLong(volatile u_char * ptr)
|
| 1700 |
|
|
{
|
| 1701 |
|
|
long ret;
|
| 1702 |
|
|
memcpy_fromio(&ret, (void *) ptr, 4);
|
| 1703 |
|
|
return ret;
|
| 1704 |
|
|
}
|
| 1705 |
|
|
#endif
|
| 1706 |
|
|
|
| 1707 |
|
|
/*
|
| 1708 |
|
|
* Get the current statistics.
|
| 1709 |
|
|
* This may be called with the card open or closed.
|
| 1710 |
|
|
*/
|
| 1711 |
|
|
|
| 1712 |
|
|
static struct net_device_stats *arlan_statistics(struct net_device *dev)
|
| 1713 |
|
|
{
|
| 1714 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1715 |
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
| 1716 |
|
|
|
| 1717 |
|
|
|
| 1718 |
|
|
ARLAN_DEBUG_ENTRY("arlan_statistics");
|
| 1719 |
|
|
|
| 1720 |
|
|
/* Update the statistics from the device registers. */
|
| 1721 |
|
|
|
| 1722 |
|
|
READSHM(priv->stats.collisions, arlan->numReTransmissions, u_int);
|
| 1723 |
|
|
READSHM(priv->stats.rx_crc_errors, arlan->numCRCErrors, u_int);
|
| 1724 |
|
|
READSHM(priv->stats.rx_dropped, arlan->numFramesDiscarded, u_int);
|
| 1725 |
|
|
READSHM(priv->stats.rx_fifo_errors, arlan->numRXBufferOverflows, u_int);
|
| 1726 |
|
|
READSHM(priv->stats.rx_frame_errors, arlan->numReceiveFramesLost, u_int);
|
| 1727 |
|
|
READSHM(priv->stats.rx_over_errors, arlan->numRXOverruns, u_int);
|
| 1728 |
|
|
READSHM(priv->stats.rx_packets, arlan->numDatagramsReceived, u_int);
|
| 1729 |
|
|
READSHM(priv->stats.tx_aborted_errors, arlan->numAbortErrors, u_int);
|
| 1730 |
|
|
READSHM(priv->stats.tx_carrier_errors, arlan->numStatusTimeouts, u_int);
|
| 1731 |
|
|
READSHM(priv->stats.tx_dropped, arlan->numDatagramsDiscarded, u_int);
|
| 1732 |
|
|
READSHM(priv->stats.tx_fifo_errors, arlan->numTXUnderruns, u_int);
|
| 1733 |
|
|
READSHM(priv->stats.tx_packets, arlan->numDatagramsTransmitted, u_int);
|
| 1734 |
|
|
READSHM(priv->stats.tx_window_errors, arlan->numHoldOffs, u_int);
|
| 1735 |
|
|
|
| 1736 |
|
|
ARLAN_DEBUG_EXIT("arlan_statistics");
|
| 1737 |
|
|
|
| 1738 |
|
|
return &priv->stats;
|
| 1739 |
|
|
}
|
| 1740 |
|
|
|
| 1741 |
|
|
|
| 1742 |
|
|
static void arlan_set_multicast(struct net_device *dev)
|
| 1743 |
|
|
{
|
| 1744 |
|
|
struct arlan_private *priv = netdev_priv(dev);
|
| 1745 |
|
|
volatile struct arlan_shmem __iomem *arlan = priv->card;
|
| 1746 |
|
|
struct arlan_conf_stru *conf = priv->Conf;
|
| 1747 |
|
|
int board_conf_needed = 0;
|
| 1748 |
|
|
|
| 1749 |
|
|
|
| 1750 |
|
|
ARLAN_DEBUG_ENTRY("arlan_set_multicast");
|
| 1751 |
|
|
|
| 1752 |
|
|
if (dev->flags & IFF_PROMISC)
|
| 1753 |
|
|
{
|
| 1754 |
|
|
unsigned char recMode;
|
| 1755 |
|
|
READSHM(recMode, arlan->receiveMode, u_char);
|
| 1756 |
|
|
conf->receiveMode = (ARLAN_RCV_PROMISC | ARLAN_RCV_CONTROL);
|
| 1757 |
|
|
if (conf->receiveMode != recMode)
|
| 1758 |
|
|
board_conf_needed = 1;
|
| 1759 |
|
|
}
|
| 1760 |
|
|
else
|
| 1761 |
|
|
{
|
| 1762 |
|
|
/* turn off promiscuous mode */
|
| 1763 |
|
|
unsigned char recMode;
|
| 1764 |
|
|
READSHM(recMode, arlan->receiveMode, u_char);
|
| 1765 |
|
|
conf->receiveMode = ARLAN_RCV_CLEAN | ARLAN_RCV_CONTROL;
|
| 1766 |
|
|
if (conf->receiveMode != recMode)
|
| 1767 |
|
|
board_conf_needed = 1;
|
| 1768 |
|
|
}
|
| 1769 |
|
|
if (board_conf_needed)
|
| 1770 |
|
|
arlan_command(dev, ARLAN_COMMAND_CONF);
|
| 1771 |
|
|
|
| 1772 |
|
|
ARLAN_DEBUG_EXIT("arlan_set_multicast");
|
| 1773 |
|
|
}
|
| 1774 |
|
|
|
| 1775 |
|
|
|
| 1776 |
|
|
struct net_device * __init arlan_probe(int unit)
|
| 1777 |
|
|
{
|
| 1778 |
|
|
struct net_device *dev;
|
| 1779 |
|
|
int err;
|
| 1780 |
|
|
int m;
|
| 1781 |
|
|
|
| 1782 |
|
|
ARLAN_DEBUG_ENTRY("arlan_probe");
|
| 1783 |
|
|
|
| 1784 |
|
|
if (arlans_found == MAX_ARLANS)
|
| 1785 |
|
|
return ERR_PTR(-ENODEV);
|
| 1786 |
|
|
|
| 1787 |
|
|
/*
|
| 1788 |
|
|
* Reserve space for local data and a copy of the shared memory
|
| 1789 |
|
|
* that is used by the /proc interface.
|
| 1790 |
|
|
*/
|
| 1791 |
|
|
dev = alloc_etherdev(sizeof(struct arlan_private)
|
| 1792 |
|
|
+ sizeof(struct arlan_shmem));
|
| 1793 |
|
|
if (!dev)
|
| 1794 |
|
|
return ERR_PTR(-ENOMEM);
|
| 1795 |
|
|
|
| 1796 |
|
|
if (unit >= 0) {
|
| 1797 |
|
|
sprintf(dev->name, "eth%d", unit);
|
| 1798 |
|
|
netdev_boot_setup_check(dev);
|
| 1799 |
|
|
|
| 1800 |
|
|
if (dev->mem_start) {
|
| 1801 |
|
|
if (arlan_probe_here(dev, dev->mem_start) == 0)
|
| 1802 |
|
|
goto found;
|
| 1803 |
|
|
goto not_found;
|
| 1804 |
|
|
}
|
| 1805 |
|
|
|
| 1806 |
|
|
}
|
| 1807 |
|
|
|
| 1808 |
|
|
|
| 1809 |
|
|
for (m = (int)phys_to_virt(lastFoundAt) + ARLAN_SHMEM_SIZE;
|
| 1810 |
|
|
m <= (int)phys_to_virt(0xDE000);
|
| 1811 |
|
|
m += ARLAN_SHMEM_SIZE)
|
| 1812 |
|
|
{
|
| 1813 |
|
|
if (arlan_probe_here(dev, m) == 0)
|
| 1814 |
|
|
{
|
| 1815 |
|
|
lastFoundAt = (int)virt_to_phys((void*)m);
|
| 1816 |
|
|
goto found;
|
| 1817 |
|
|
}
|
| 1818 |
|
|
}
|
| 1819 |
|
|
|
| 1820 |
|
|
if (lastFoundAt == 0xbe000)
|
| 1821 |
|
|
printk(KERN_ERR "arlan: No Arlan devices found \n");
|
| 1822 |
|
|
|
| 1823 |
|
|
not_found:
|
| 1824 |
|
|
free_netdev(dev);
|
| 1825 |
|
|
return ERR_PTR(-ENODEV);
|
| 1826 |
|
|
|
| 1827 |
|
|
found:
|
| 1828 |
|
|
err = arlan_setup_device(dev, arlans_found);
|
| 1829 |
|
|
if (err)
|
| 1830 |
|
|
dev = ERR_PTR(err);
|
| 1831 |
|
|
else if (!arlans_found++)
|
| 1832 |
|
|
printk(KERN_INFO "Arlan driver %s\n", arlan_version);
|
| 1833 |
|
|
|
| 1834 |
|
|
return dev;
|
| 1835 |
|
|
}
|
| 1836 |
|
|
|
| 1837 |
|
|
#ifdef MODULE
|
| 1838 |
|
|
int __init init_module(void)
|
| 1839 |
|
|
{
|
| 1840 |
|
|
int i = 0;
|
| 1841 |
|
|
|
| 1842 |
|
|
ARLAN_DEBUG_ENTRY("init_module");
|
| 1843 |
|
|
|
| 1844 |
|
|
if (channelSet != channelSetUNKNOWN || channelNumber != channelNumberUNKNOWN || systemId != systemIdUNKNOWN)
|
| 1845 |
|
|
return -EINVAL;
|
| 1846 |
|
|
|
| 1847 |
|
|
for (i = 0; i < MAX_ARLANS; i++) {
|
| 1848 |
|
|
struct net_device *dev = arlan_probe(i);
|
| 1849 |
|
|
|
| 1850 |
|
|
if (IS_ERR(dev))
|
| 1851 |
|
|
return PTR_ERR(dev);
|
| 1852 |
|
|
}
|
| 1853 |
|
|
init_arlan_proc();
|
| 1854 |
|
|
printk(KERN_INFO "Arlan driver %s\n", arlan_version);
|
| 1855 |
|
|
ARLAN_DEBUG_EXIT("init_module");
|
| 1856 |
|
|
return 0;
|
| 1857 |
|
|
}
|
| 1858 |
|
|
|
| 1859 |
|
|
|
| 1860 |
|
|
void __exit cleanup_module(void)
|
| 1861 |
|
|
{
|
| 1862 |
|
|
int i = 0;
|
| 1863 |
|
|
struct net_device *dev;
|
| 1864 |
|
|
|
| 1865 |
|
|
ARLAN_DEBUG_ENTRY("cleanup_module");
|
| 1866 |
|
|
|
| 1867 |
|
|
IFDEBUG(ARLAN_DEBUG_SHUTDOWN)
|
| 1868 |
|
|
printk(KERN_INFO "arlan: unloading module\n");
|
| 1869 |
|
|
|
| 1870 |
|
|
cleanup_arlan_proc();
|
| 1871 |
|
|
|
| 1872 |
|
|
for (i = 0; i < MAX_ARLANS; i++)
|
| 1873 |
|
|
{
|
| 1874 |
|
|
dev = arlan_device[i];
|
| 1875 |
|
|
if (dev) {
|
| 1876 |
|
|
arlan_command(dev, ARLAN_COMMAND_POWERDOWN );
|
| 1877 |
|
|
|
| 1878 |
|
|
unregister_netdev(dev);
|
| 1879 |
|
|
release_mem_region(virt_to_phys((void *) dev->mem_start),
|
| 1880 |
|
|
ARLAN_SHMEM_SIZE);
|
| 1881 |
|
|
free_netdev(dev);
|
| 1882 |
|
|
arlan_device[i] = NULL;
|
| 1883 |
|
|
}
|
| 1884 |
|
|
}
|
| 1885 |
|
|
|
| 1886 |
|
|
ARLAN_DEBUG_EXIT("cleanup_module");
|
| 1887 |
|
|
}
|
| 1888 |
|
|
|
| 1889 |
|
|
|
| 1890 |
|
|
#endif
|
| 1891 |
|
|
MODULE_LICENSE("GPL");
|
