Linux-2.6.12-rc2v2.6.12-rc2

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!

1 files changed, 1081 insertions, 0 deletions

diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c
new file mode 100644
index 000000000000..89abdda1d343
--- /dev/null
+++ b/drivers/net/pcmcia/3c589_cs.c
@@ -0,0 +1,1081 @@
+/*======================================================================
+
+    A PCMCIA ethernet driver for the 3com 3c589 card.
+    
+    Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
+
+    3c589_cs.c 1.162 2001/10/13 00:08:50
+
+    The network driver code is based on Donald Becker's 3c589 code:
+    
+    Written 1994 by Donald Becker.
+    Copyright 1993 United States Government as represented by the
+    Director, National Security Agency.  This software may be used and
+    distributed according to the terms of the GNU General Public License,
+    incorporated herein by reference.
+    Donald Becker may be reached at becker@scyld.com
+    
+    Updated for 2.5.x by Alan Cox <alan@redhat.com>
+
+======================================================================*/
+
+#define DRV_NAME        "3c589_cs"
+#define DRV_VERSION     "1.162-ac"
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/in.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/ioport.h>
+#include <linux/bitops.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/system.h>
+
+/* To minimize the size of the driver source I only define operating
+   constants if they are used several times.  You'll need the manual
+   if you want to understand driver details. */
+/* Offsets from base I/O address. */
+#define EL3_DATA        0x00
+#define EL3_TIMER       0x0a
+#define EL3_CMD         0x0e
+#define EL3_STATUS      0x0e
+
+#define EEPROM_READ     0x0080
+#define EEPROM_BUSY     0x8000
+
+#define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
+
+/* The top five bits written to EL3_CMD are a command, the lower
+   11 bits are the parameter, if applicable. */
+enum c509cmd {
+    TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
+    RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11,
+    TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
+    FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
+    SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
+    SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11,
+    StatsDisable = 22<<11, StopCoax = 23<<11,
+};
+
+enum c509status {
+    IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
+    TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
+    IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000
+};
+
+/* The SetRxFilter command accepts the following classes: */
+enum RxFilter {
+    RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8
+};
+
+/* Register window 1 offsets, the window used in normal operation. */
+#define TX_FIFO         0x00
+#define RX_FIFO         0x00
+#define RX_STATUS       0x08
+#define TX_STATUS       0x0B
+#define TX_FREE         0x0C    /* Remaining free bytes in Tx buffer. */
+
+#define WN0_IRQ         0x08    /* Window 0: Set IRQ line in bits 12-15. */
+#define WN4_MEDIA       0x0A    /* Window 4: Various transcvr/media bits. */
+#define MEDIA_TP        0x00C0  /* Enable link beat and jabber for 10baseT. */
+#define MEDIA_LED       0x0001  /* Enable link light on 3C589E cards. */
+
+/* Time in jiffies before concluding Tx hung */
+#define TX_TIMEOUT      ((400*HZ)/1000)
+
+struct el3_private {
+    dev_link_t          link;
+    dev_node_t          node;
+    struct net_device_stats stats;
+    /* For transceiver monitoring */
+    struct timer_list   media;
+    u16                 media_status;
+    u16                 fast_poll;
+    unsigned long       last_irq;
+    spinlock_t          lock;
+};
+
+static char *if_names[] = { "auto", "10baseT", "10base2", "AUI" };
+
+/*====================================================================*/
+
+/* Module parameters */
+
+MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
+MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver");
+MODULE_LICENSE("GPL");
+
+#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
+
+/* Special hook for setting if_port when module is loaded */
+INT_MODULE_PARM(if_port, 0);
+
+#ifdef PCMCIA_DEBUG
+INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
+static char *version =
+DRV_NAME ".c " DRV_VERSION " 2001/10/13 00:08:50 (David Hinds)";
+#else
+#define DEBUG(n, args...)
+#endif
+
+/*====================================================================*/
+
+static void tc589_config(dev_link_t *link);
+static void tc589_release(dev_link_t *link);
+static int tc589_event(event_t event, int priority,
+                       event_callback_args_t *args);
+
+static u16 read_eeprom(kio_addr_t ioaddr, int index);
+static void tc589_reset(struct net_device *dev);
+static void media_check(unsigned long arg);
+static int el3_config(struct net_device *dev, struct ifmap *map);
+static int el3_open(struct net_device *dev);
+static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t el3_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static void update_stats(struct net_device *dev);
+static struct net_device_stats *el3_get_stats(struct net_device *dev);
+static int el3_rx(struct net_device *dev);
+static int el3_close(struct net_device *dev);
+static void el3_tx_timeout(struct net_device *dev);
+static void set_multicast_list(struct net_device *dev);
+static struct ethtool_ops netdev_ethtool_ops;
+
+static dev_info_t dev_info = "3c589_cs";
+
+static dev_link_t *tc589_attach(void);
+static void tc589_detach(dev_link_t *);
+
+static dev_link_t *dev_list;
+
+/*======================================================================
+
+    tc589_attach() creates an "instance" of the driver, allocating
+    local data structures for one device.  The device is registered
+    with Card Services.
+
+======================================================================*/
+
+static dev_link_t *tc589_attach(void)
+{
+    struct el3_private *lp;
+    client_reg_t client_reg;
+    dev_link_t *link;
+    struct net_device *dev;
+    int ret;
+
+    DEBUG(0, "3c589_attach()\n");
+    
+    /* Create new ethernet device */
+    dev = alloc_etherdev(sizeof(struct el3_private));
+    if (!dev)
+         return NULL;
+    lp = netdev_priv(dev);
+    link = &lp->link;
+    link->priv = dev;
+
+    spin_lock_init(&lp->lock);
+    link->io.NumPorts1 = 16;
+    link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
+    link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+    link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+    link->irq.Handler = &el3_interrupt;
+    link->irq.Instance = dev;
+    link->conf.Attributes = CONF_ENABLE_IRQ;
+    link->conf.Vcc = 50;
+    link->conf.IntType = INT_MEMORY_AND_IO;
+    link->conf.ConfigIndex = 1;
+    link->conf.Present = PRESENT_OPTION;
+    
+    /* The EL3-specific entries in the device structure. */
+    SET_MODULE_OWNER(dev);
+    dev->hard_start_xmit = &el3_start_xmit;
+    dev->set_config = &el3_config;
+    dev->get_stats = &el3_get_stats;
+    dev->set_multicast_list = &set_multicast_list;
+    dev->open = &el3_open;
+    dev->stop = &el3_close;
+#ifdef HAVE_TX_TIMEOUT
+    dev->tx_timeout = el3_tx_timeout;
+    dev->watchdog_timeo = TX_TIMEOUT;
+#endif
+    SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
+
+    /* Register with Card Services */
+    link->next = dev_list;
+    dev_list = link;
+    client_reg.dev_info = &dev_info;
+    client_reg.EventMask =
+        CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+        CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+        CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+    client_reg.event_handler = &tc589_event;
+    client_reg.Version = 0x0210;
+    client_reg.event_callback_args.client_data = link;
+    ret = pcmcia_register_client(&link->handle, &client_reg);
+    if (ret != 0) {
+        cs_error(link->handle, RegisterClient, ret);
+        tc589_detach(link);
+        return NULL;
+    }
+    
+    return link;
+} /* tc589_attach */
+
+/*======================================================================
+
+    This deletes a driver "instance".  The device is de-registered
+    with Card Services.  If it has been released, all local data
+    structures are freed.  Otherwise, the structures will be freed
+    when the device is released.
+
+======================================================================*/
+
+static void tc589_detach(dev_link_t *link)
+{
+    struct net_device *dev = link->priv;
+    dev_link_t **linkp;
+    
+    DEBUG(0, "3c589_detach(0x%p)\n", link);
+    
+    /* Locate device structure */
+    for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+        if (*linkp == link) break;
+    if (*linkp == NULL)
+        return;
+
+    if (link->dev)
+        unregister_netdev(dev);
+
+    if (link->state & DEV_CONFIG)
+        tc589_release(link);
+    
+    if (link->handle)
+        pcmcia_deregister_client(link->handle);
+    
+    /* Unlink device structure, free bits */
+    *linkp = link->next;
+    free_netdev(dev);
+} /* tc589_detach */
+
+/*======================================================================
+
+    tc589_config() is scheduled to run after a CARD_INSERTION event
+    is received, to configure the PCMCIA socket, and to make the
+    ethernet device available to the system.
+    
+======================================================================*/
+
+#define CS_CHECK(fn, ret) \
+do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
+
+static void tc589_config(dev_link_t *link)
+{
+    client_handle_t handle = link->handle;
+    struct net_device *dev = link->priv;
+    struct el3_private *lp = netdev_priv(dev);
+    tuple_t tuple;
+    cisparse_t parse;
+    u16 buf[32], *phys_addr;
+    int last_fn, last_ret, i, j, multi = 0, fifo;
+    kio_addr_t ioaddr;
+    char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
+    
+    DEBUG(0, "3c589_config(0x%p)\n", link);
+
+    phys_addr = (u16 *)dev->dev_addr;
+    tuple.Attributes = 0;
+    tuple.DesiredTuple = CISTPL_CONFIG;
+    CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+    tuple.TupleData = (cisdata_t *)buf;
+    tuple.TupleDataMax = sizeof(buf);
+    tuple.TupleOffset = 0;
+    CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
+    CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+    link->conf.ConfigBase = parse.config.base;
+    link->conf.Present = parse.config.rmask[0];
+    
+    /* Is this a 3c562? */
+    tuple.DesiredTuple = CISTPL_MANFID;
+    tuple.Attributes = TUPLE_RETURN_COMMON;
+    if ((pcmcia_get_first_tuple(handle, &tuple) == CS_SUCCESS) &&
+        (pcmcia_get_tuple_data(handle, &tuple) == CS_SUCCESS)) {
+        if (le16_to_cpu(buf[0]) != MANFID_3COM)
+            printk(KERN_INFO "3c589_cs: hmmm, is this really a "
+                   "3Com card??\n");
+        multi = (le16_to_cpu(buf[1]) == PRODID_3COM_3C562);
+    }
+    
+    /* Configure card */
+    link->state |= DEV_CONFIG;
+
+    /* For the 3c562, the base address must be xx00-xx7f */
+    link->io.IOAddrLines = 16;
+    for (i = j = 0; j < 0x400; j += 0x10) {
+        if (multi && (j & 0x80)) continue;
+        link->io.BasePort1 = j ^ 0x300;
+        i = pcmcia_request_io(link->handle, &link->io);
+        if (i == CS_SUCCESS) break;
+    }
+    if (i != CS_SUCCESS) {
+        cs_error(link->handle, RequestIO, i);
+        goto failed;
+    }
+    CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
+    CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));
+        
+    dev->irq = link->irq.AssignedIRQ;
+    dev->base_addr = link->io.BasePort1;
+    ioaddr = dev->base_addr;
+    EL3WINDOW(0);
+
+    /* The 3c589 has an extra EEPROM for configuration info, including
+       the hardware address.  The 3c562 puts the address in the CIS. */
+    tuple.DesiredTuple = 0x88;
+    if (pcmcia_get_first_tuple(handle, &tuple) == CS_SUCCESS) {
+        pcmcia_get_tuple_data(handle, &tuple);
+        for (i = 0; i < 3; i++)
+            phys_addr[i] = htons(buf[i]);
+    } else {
+        for (i = 0; i < 3; i++)
+            phys_addr[i] = htons(read_eeprom(ioaddr, i));
+        if (phys_addr[0] == 0x6060) {
+            printk(KERN_ERR "3c589_cs: IO port conflict at 0x%03lx"
+                   "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
+            goto failed;
+        }
+    }
+
+    /* The address and resource configuration register aren't loaded from
+       the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */
+    outw(0x3f00, ioaddr + 8);
+    fifo = inl(ioaddr);
+
+    /* The if_port symbol can be set when the module is loaded */
+    if ((if_port >= 0) && (if_port <= 3))
+        dev->if_port = if_port;
+    else
+        printk(KERN_ERR "3c589_cs: invalid if_port requested\n");
+    
+    link->dev = &lp->node;
+    link->state &= ~DEV_CONFIG_PENDING;
+    SET_NETDEV_DEV(dev, &handle_to_dev(handle));
+
+    if (register_netdev(dev) != 0) {
+        printk(KERN_ERR "3c589_cs: register_netdev() failed\n");
+        link->dev = NULL;
+        goto failed;
+    }
+
+    strcpy(lp->node.dev_name, dev->name);
+
+    printk(KERN_INFO "%s: 3Com 3c%s, io %#3lx, irq %d, hw_addr ",
+           dev->name, (multi ? "562" : "589"), dev->base_addr,
+           dev->irq);
+    for (i = 0; i < 6; i++)
+        printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
+    printk(KERN_INFO "  %dK FIFO split %s Rx:Tx, %s xcvr\n",
+           (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3],
+           if_names[dev->if_port]);
+    return;
+
+cs_failed:
+    cs_error(link->handle, last_fn, last_ret);
+failed:
+    tc589_release(link);
+    return;
+    
+} /* tc589_config */
+
+/*======================================================================
+
+    After a card is removed, tc589_release() will unregister the net
+    device, and release the PCMCIA configuration.  If the device is
+    still open, this will be postponed until it is closed.
+    
+======================================================================*/
+
+static void tc589_release(dev_link_t *link)
+{
+    DEBUG(0, "3c589_release(0x%p)\n", link);
+    
+    pcmcia_release_configuration(link->handle);
+    pcmcia_release_io(link->handle, &link->io);
+    pcmcia_release_irq(link->handle, &link->irq);
+    
+    link->state &= ~DEV_CONFIG;
+}
+
+/*======================================================================
+
+    The card status event handler.  Mostly, this schedules other
+    stuff to run after an event is received.  A CARD_REMOVAL event
+    also sets some flags to discourage the net drivers from trying
+    to talk to the card any more.
+    
+======================================================================*/
+
+static int tc589_event(event_t event, int priority,
+                       event_callback_args_t *args)
+{
+    dev_link_t *link = args->client_data;
+    struct net_device *dev = link->priv;
+    
+    DEBUG(1, "3c589_event(0x%06x)\n", event);
+    
+    switch (event) {
+    case CS_EVENT_CARD_REMOVAL:
+        link->state &= ~DEV_PRESENT;
+        if (link->state & DEV_CONFIG)
+            netif_device_detach(dev);
+        break;
+    case CS_EVENT_CARD_INSERTION:
+        link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+        tc589_config(link);
+        break;
+    case CS_EVENT_PM_SUSPEND:
+        link->state |= DEV_SUSPEND;
+        /* Fall through... */
+    case CS_EVENT_RESET_PHYSICAL:
+        if (link->state & DEV_CONFIG) {
+            if (link->open)
+                netif_device_detach(dev);
+            pcmcia_release_configuration(link->handle);
+        }
+        break;
+    case CS_EVENT_PM_RESUME:
+        link->state &= ~DEV_SUSPEND;
+        /* Fall through... */
+    case CS_EVENT_CARD_RESET:
+        if (link->state & DEV_CONFIG) {
+            pcmcia_request_configuration(link->handle, &link->conf);
+            if (link->open) {
+                tc589_reset(dev);
+                netif_device_attach(dev);
+            }
+        }
+        break;
+    }
+    return 0;
+} /* tc589_event */
+
+/*====================================================================*/
+
+/*
+  Use this for commands that may take time to finish
+*/
+static void tc589_wait_for_completion(struct net_device *dev, int cmd)
+{
+    int i = 100;
+    outw(cmd, dev->base_addr + EL3_CMD);
+    while (--i > 0)
+        if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
+    if (i == 0)
+        printk(KERN_WARNING "%s: command 0x%04x did not complete!\n",
+               dev->name, cmd);
+}
+
+/*
+  Read a word from the EEPROM using the regular EEPROM access register.
+  Assume that we are in register window zero.
+*/
+static u16 read_eeprom(kio_addr_t ioaddr, int index)
+{
+    int i;
+    outw(EEPROM_READ + index, ioaddr + 10);
+    /* Reading the eeprom takes 162 us */
+    for (i = 1620; i >= 0; i--)
+        if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0)
+            break;
+    return inw(ioaddr + 12);
+}
+
+/*
+  Set transceiver type, perhaps to something other than what the user
+  specified in dev->if_port.
+*/
+static void tc589_set_xcvr(struct net_device *dev, int if_port)
+{
+    struct el3_private *lp = netdev_priv(dev);
+    kio_addr_t ioaddr = dev->base_addr;
+    
+    EL3WINDOW(0);
+    switch (if_port) {
+    case 0: case 1: outw(0, ioaddr + 6); break;
+    case 2: outw(3<<14, ioaddr + 6); break;
+    case 3: outw(1<<14, ioaddr + 6); break;
+    }
+    /* On PCMCIA, this just turns on the LED */
+    outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD);
+    /* 10baseT interface, enable link beat and jabber check. */
+    EL3WINDOW(4);
+    outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA);
+    EL3WINDOW(1);
+    if (if_port == 2)
+        lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000);
+    else
+        lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800);
+}
+
+static void dump_status(struct net_device *dev)
+{
+    kio_addr_t ioaddr = dev->base_addr;
+    EL3WINDOW(1);
+    printk(KERN_INFO "  irq status %04x, rx status %04x, tx status "
+           "%02x  tx free %04x\n", inw(ioaddr+EL3_STATUS),
+           inw(ioaddr+RX_STATUS), inb(ioaddr+TX_STATUS),
+           inw(ioaddr+TX_FREE));
+    EL3WINDOW(4);
+    printk(KERN_INFO "  diagnostics: fifo %04x net %04x ethernet %04x"
+           " media %04x\n", inw(ioaddr+0x04), inw(ioaddr+0x06),
+           inw(ioaddr+0x08), inw(ioaddr+0x0a));
+    EL3WINDOW(1);
+}
+
+/* Reset and restore all of the 3c589 registers. */
+static void tc589_reset(struct net_device *dev)
+{
+    kio_addr_t ioaddr = dev->base_addr;
+    int i;
+    
+    EL3WINDOW(0);
+    outw(0x0001, ioaddr + 4);                   /* Activate board. */ 
+    outw(0x3f00, ioaddr + 8);                   /* Set the IRQ line. */
+    
+    /* Set the station address in window 2. */
+    EL3WINDOW(2);
+    for (i = 0; i < 6; i++)
+        outb(dev->dev_addr[i], ioaddr + i);
+
+    tc589_set_xcvr(dev, dev->if_port);
+    
+    /* Switch to the stats window, and clear all stats by reading. */
+    outw(StatsDisable, ioaddr + EL3_CMD);
+    EL3WINDOW(6);
+    for (i = 0; i < 9; i++)
+        inb(ioaddr+i);
+    inw(ioaddr + 10);
+    inw(ioaddr + 12);
+    
+    /* Switch to register set 1 for normal use. */
+    EL3WINDOW(1);
+
+    /* Accept b-cast and phys addr only. */
+    outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
+    outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
+    outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
+    outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
+    /* Allow status bits to be seen. */
+    outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
+    /* Ack all pending events, and set active indicator mask. */
+    outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
+         ioaddr + EL3_CMD);
+    outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
+         | AdapterFailure, ioaddr + EL3_CMD);
+}
+
+static void netdev_get_drvinfo(struct net_device *dev,
+                               struct ethtool_drvinfo *info)
+{
+        strcpy(info->driver, DRV_NAME);
+        strcpy(info->version, DRV_VERSION);
+        sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
+}
+
+#ifdef PCMCIA_DEBUG
+static u32 netdev_get_msglevel(struct net_device *dev)
+{
+        return pc_debug;
+}
+
+static void netdev_set_msglevel(struct net_device *dev, u32 level)
+{
+        pc_debug = level;
+}
+#endif /* PCMCIA_DEBUG */
+
+static struct ethtool_ops netdev_ethtool_ops = {
+        .get_drvinfo            = netdev_get_drvinfo,
+#ifdef PCMCIA_DEBUG
+        .get_msglevel           = netdev_get_msglevel,
+        .set_msglevel           = netdev_set_msglevel,
+#endif /* PCMCIA_DEBUG */
+};
+
+static int el3_config(struct net_device *dev, struct ifmap *map)
+{
+    if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
+        if (map->port <= 3) {
+            dev->if_port = map->port;
+            printk(KERN_INFO "%s: switched to %s port\n",
+                   dev->name, if_names[dev->if_port]);
+            tc589_set_xcvr(dev, dev->if_port);
+        } else
+            return -EINVAL;
+    }
+    return 0;
+}
+
+static int el3_open(struct net_device *dev)
+{
+    struct el3_private *lp = netdev_priv(dev);
+    dev_link_t *link = &lp->link;
+    
+    if (!DEV_OK(link))
+        return -ENODEV;
+
+    link->open++;
+    netif_start_queue(dev);
+    
+    tc589_reset(dev);
+    init_timer(&lp->media);
+    lp->media.function = &media_check;
+    lp->media.data = (unsigned long) dev;
+    lp->media.expires = jiffies + HZ;
+    add_timer(&lp->media);
+
+    DEBUG(1, "%s: opened, status %4.4x.\n",
+          dev->name, inw(dev->base_addr + EL3_STATUS));
+    
+    return 0;
+}
+
+static void el3_tx_timeout(struct net_device *dev)
+{
+    struct el3_private *lp = netdev_priv(dev);
+    kio_addr_t ioaddr = dev->base_addr;
+    
+    printk(KERN_WARNING "%s: Transmit timed out!\n", dev->name);
+    dump_status(dev);
+    lp->stats.tx_errors++;
+    dev->trans_start = jiffies;
+    /* Issue TX_RESET and TX_START commands. */
+    tc589_wait_for_completion(dev, TxReset);
+    outw(TxEnable, ioaddr + EL3_CMD);
+    netif_wake_queue(dev);
+}
+
+static void pop_tx_status(struct net_device *dev)
+{
+    struct el3_private *lp = netdev_priv(dev);
+    kio_addr_t ioaddr = dev->base_addr;
+    int i;
+    
+    /* Clear the Tx status stack. */
+    for (i = 32; i > 0; i--) {
+        u_char tx_status = inb(ioaddr + TX_STATUS);
+        if (!(tx_status & 0x84)) break;
+        /* reset transmitter on jabber error or underrun */
+        if (tx_status & 0x30)
+            tc589_wait_for_completion(dev, TxReset);
+        if (tx_status & 0x38) {
+            DEBUG(1, "%s: transmit error: status 0x%02x\n",
+                  dev->name, tx_status);
+            outw(TxEnable, ioaddr + EL3_CMD);
+            lp->stats.tx_aborted_errors++;
+        }
+        outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
+    }
+}
+
+static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+    kio_addr_t ioaddr = dev->base_addr;
+    struct el3_private *priv = netdev_priv(dev);
+
+    DEBUG(3, "%s: el3_start_xmit(length = %ld) called, "
+          "status %4.4x.\n", dev->name, (long)skb->len,
+          inw(ioaddr + EL3_STATUS));
+
+    priv->stats.tx_bytes += skb->len;
+
+    /* Put out the doubleword header... */
+    outw(skb->len, ioaddr + TX_FIFO);
+    outw(0x00, ioaddr + TX_FIFO);
+    /* ... and the packet rounded to a doubleword. */
+    outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
+
+    dev->trans_start = jiffies;
+    if (inw(ioaddr + TX_FREE) <= 1536) {
+        netif_stop_queue(dev);
+        /* Interrupt us when the FIFO has room for max-sized packet. */
+        outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
+    }
+
+    dev_kfree_skb(skb);
+    pop_tx_status(dev);
+    
+    return 0;
+}
+
+/* The EL3 interrupt handler. */
+static irqreturn_t el3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+    struct net_device *dev = (struct net_device *) dev_id;
+    struct el3_private *lp = netdev_priv(dev);
+    kio_addr_t ioaddr;
+    __u16 status;
+    int i = 0, handled = 1;
+    
+    if (!netif_device_present(dev))
+        return IRQ_NONE;
+
+    ioaddr = dev->base_addr;
+
+    DEBUG(3, "%s: interrupt, status %4.4x.\n",
+          dev->name, inw(ioaddr + EL3_STATUS));
+
+    spin_lock(&lp->lock);    
+    while ((status = inw(ioaddr + EL3_STATUS)) &
+        (IntLatch | RxComplete | StatsFull)) {
+        if ((status & 0xe000) != 0x2000) {
+            DEBUG(1, "%s: interrupt from dead card\n", dev->name);
+            handled = 0;
+            break;
+        }
+        
+        if (status & RxComplete)
+            el3_rx(dev);
+        
+        if (status & TxAvailable) {
+            DEBUG(3, "    TX room bit was handled.\n");
+            /* There's room in the FIFO for a full-sized packet. */
+            outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
+            netif_wake_queue(dev);
+        }
+        
+        if (status & TxComplete)
+            pop_tx_status(dev);
+
+        if (status & (AdapterFailure | RxEarly | StatsFull)) {
+            /* Handle all uncommon interrupts. */
+            if (status & StatsFull)             /* Empty statistics. */
+                update_stats(dev);
+            if (status & RxEarly) {             /* Rx early is unused. */
+                el3_rx(dev);
+                outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
+            }
+            if (status & AdapterFailure) {
+                u16 fifo_diag;
+                EL3WINDOW(4);
+                fifo_diag = inw(ioaddr + 4);
+                EL3WINDOW(1);
+                printk(KERN_WARNING "%s: adapter failure, FIFO diagnostic"
+                       " register %04x.\n", dev->name, fifo_diag);
+                if (fifo_diag & 0x0400) {
+                    /* Tx overrun */
+                    tc589_wait_for_completion(dev, TxReset);
+                    outw(TxEnable, ioaddr + EL3_CMD);
+                }
+                if (fifo_diag & 0x2000) {
+                    /* Rx underrun */
+                    tc589_wait_for_completion(dev, RxReset);
+                    set_multicast_list(dev);
+                    outw(RxEnable, ioaddr + EL3_CMD);
+                }
+                outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
+            }
+        }
+        
+        if (++i > 10) {
+            printk(KERN_ERR "%s: infinite loop in interrupt, "
+                   "status %4.4x.\n", dev->name, status);
+            /* Clear all interrupts */
+            outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
+            break;
+        }
+        /* Acknowledge the IRQ. */
+        outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
+    }
+
+    lp->last_irq = jiffies;
+    spin_unlock(&lp->lock);    
+    DEBUG(3, "%s: exiting interrupt, status %4.4x.\n",
+          dev->name, inw(ioaddr + EL3_STATUS));
+    return IRQ_RETVAL(handled);
+}
+
+static void media_check(unsigned long arg)
+{
+    struct net_device *dev = (struct net_device *)(arg);
+    struct el3_private *lp = netdev_priv(dev);
+    kio_addr_t ioaddr = dev->base_addr;
+    u16 media, errs;
+    unsigned long flags;
+
+    if (!netif_device_present(dev)) goto reschedule;
+
+    EL3WINDOW(1);
+    /* Check for pending interrupt with expired latency timer: with
+       this, we can limp along even if the interrupt is blocked */
+    if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
+        (inb(ioaddr + EL3_TIMER) == 0xff)) {
+        if (!lp->fast_poll)
+            printk(KERN_WARNING "%s: interrupt(s) dropped!\n", dev->name);
+        el3_interrupt(dev->irq, lp, NULL);
+        lp->fast_poll = HZ;
+    }
+    if (lp->fast_poll) {
+        lp->fast_poll--;
+        lp->media.expires = jiffies + HZ/100;
+        add_timer(&lp->media);
+        return;
+    }
+
+    /* lp->lock guards the EL3 window. Window should always be 1 except
+       when the lock is held */
+    spin_lock_irqsave(&lp->lock, flags);    
+    EL3WINDOW(4);
+    media = inw(ioaddr+WN4_MEDIA) & 0xc810;
+
+    /* Ignore collisions unless we've had no irq's recently */
+    if (jiffies - lp->last_irq < HZ) {
+        media &= ~0x0010;
+    } else {
+        /* Try harder to detect carrier errors */
+        EL3WINDOW(6);
+        outw(StatsDisable, ioaddr + EL3_CMD);
+        errs = inb(ioaddr + 0);
+        outw(StatsEnable, ioaddr + EL3_CMD);
+        lp->stats.tx_carrier_errors += errs;
+        if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
+    }
+
+    if (media != lp->media_status) {
+        if ((media & lp->media_status & 0x8000) &&
+            ((lp->media_status ^ media) & 0x0800))
+            printk(KERN_INFO "%s: %s link beat\n", dev->name,
+                   (lp->media_status & 0x0800 ? "lost" : "found"));
+        else if ((media & lp->media_status & 0x4000) &&
+                 ((lp->media_status ^ media) & 0x0010))
+            printk(KERN_INFO "%s: coax cable %s\n", dev->name,
+                   (lp->media_status & 0x0010 ? "ok" : "problem"));
+        if (dev->if_port == 0) {
+            if (media & 0x8000) {
+                if (media & 0x0800)
+                    printk(KERN_INFO "%s: flipped to 10baseT\n",
+                           dev->name);
+                else
+                    tc589_set_xcvr(dev, 2);
+            } else if (media & 0x4000) {
+                if (media & 0x0010)
+                    tc589_set_xcvr(dev, 1);
+                else
+                    printk(KERN_INFO "%s: flipped to 10base2\n",
+                           dev->name);
+            }
+        }
+        lp->media_status = media;
+    }
+    
+    EL3WINDOW(1);
+    spin_unlock_irqrestore(&lp->lock, flags);    
+
+reschedule:
+    lp->media.expires = jiffies + HZ;
+    add_timer(&lp->media);
+}
+
+static struct net_device_stats *el3_get_stats(struct net_device *dev)
+{
+    struct el3_private *lp = netdev_priv(dev);
+    unsigned long flags;
+    dev_link_t *link = &lp->link;
+
+    if (DEV_OK(link)) {
+        spin_lock_irqsave(&lp->lock, flags);
+        update_stats(dev);
+        spin_unlock_irqrestore(&lp->lock, flags);
+    }
+    return &lp->stats;
+}
+
+/*
+  Update statistics.  We change to register window 6, so this should be run
+  single-threaded if the device is active. This is expected to be a rare
+  operation, and it's simpler for the rest of the driver to assume that
+  window 1 is always valid rather than use a special window-state variable.
+  
+  Caller must hold the lock for this
+*/
+static void update_stats(struct net_device *dev)
+{
+    struct el3_private *lp = netdev_priv(dev);
+    kio_addr_t ioaddr = dev->base_addr;
+
+    DEBUG(2, "%s: updating the statistics.\n", dev->name);
+    /* Turn off statistics updates while reading. */
+    outw(StatsDisable, ioaddr + EL3_CMD);
+    /* Switch to the stats window, and read everything. */
+    EL3WINDOW(6);
+    lp->stats.tx_carrier_errors         += inb(ioaddr + 0);
+    lp->stats.tx_heartbeat_errors       += inb(ioaddr + 1);
+    /* Multiple collisions. */          inb(ioaddr + 2);
+    lp->stats.collisions                += inb(ioaddr + 3);
+    lp->stats.tx_window_errors          += inb(ioaddr + 4);
+    lp->stats.rx_fifo_errors            += inb(ioaddr + 5);
+    lp->stats.tx_packets                += inb(ioaddr + 6);
+    /* Rx packets   */                  inb(ioaddr + 7);
+    /* Tx deferrals */                  inb(ioaddr + 8);
+    /* Rx octets */                     inw(ioaddr + 10);
+    /* Tx octets */                     inw(ioaddr + 12);
+    
+    /* Back to window 1, and turn statistics back on. */
+    EL3WINDOW(1);
+    outw(StatsEnable, ioaddr + EL3_CMD);
+}
+
+static int el3_rx(struct net_device *dev)
+{
+    struct el3_private *lp = netdev_priv(dev);
+    kio_addr_t ioaddr = dev->base_addr;
+    int worklimit = 32;
+    short rx_status;
+    
+    DEBUG(3, "%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n",
+          dev->name, inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
+    while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
+           (--worklimit >= 0)) {
+        if (rx_status & 0x4000) { /* Error, update stats. */
+            short error = rx_status & 0x3800;
+            lp->stats.rx_errors++;
+            switch (error) {
+            case 0x0000:        lp->stats.rx_over_errors++; break;
+            case 0x0800:        lp->stats.rx_length_errors++; break;
+            case 0x1000:        lp->stats.rx_frame_errors++; break;
+            case 0x1800:        lp->stats.rx_length_errors++; break;
+            case 0x2000:        lp->stats.rx_frame_errors++; break;
+            case 0x2800:        lp->stats.rx_crc_errors++; break;
+            }
+        } else {
+            short pkt_len = rx_status & 0x7ff;
+            struct sk_buff *skb;
+            
+            skb = dev_alloc_skb(pkt_len+5);
+            
+            DEBUG(3, "    Receiving packet size %d status %4.4x.\n",
+                  pkt_len, rx_status);
+            if (skb != NULL) {
+                skb->dev = dev;
+                skb_reserve(skb, 2);
+                insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
+                        (pkt_len+3)>>2);
+                skb->protocol = eth_type_trans(skb, dev);
+                netif_rx(skb);
+                dev->last_rx = jiffies;
+                lp->stats.rx_packets++;
+                lp->stats.rx_bytes += pkt_len;
+            } else {
+                DEBUG(1, "%s: couldn't allocate a sk_buff of"
+                      " size %d.\n", dev->name, pkt_len);
+                lp->stats.rx_dropped++;
+            }
+        }
+        /* Pop the top of the Rx FIFO */
+        tc589_wait_for_completion(dev, RxDiscard);
+    }
+    if (worklimit == 0)
+        printk(KERN_WARNING "%s: too much work in el3_rx!\n", dev->name);
+    return 0;
+}
+
+static void set_multicast_list(struct net_device *dev)
+{
+    struct el3_private *lp = netdev_priv(dev);
+    dev_link_t *link = &lp->link;
+    kio_addr_t ioaddr = dev->base_addr;
+    u16 opts = SetRxFilter | RxStation | RxBroadcast;
+
+    if (!(DEV_OK(link))) return;
+    if (dev->flags & IFF_PROMISC)
+        opts |= RxMulticast | RxProm;
+    else if (dev->mc_count || (dev->flags & IFF_ALLMULTI))
+        opts |= RxMulticast;
+    outw(opts, ioaddr + EL3_CMD);
+}
+
+static int el3_close(struct net_device *dev)
+{
+    struct el3_private *lp = netdev_priv(dev);
+    dev_link_t *link = &lp->link;
+    kio_addr_t ioaddr = dev->base_addr;
+    
+    DEBUG(1, "%s: shutting down ethercard.\n", dev->name);
+
+    if (DEV_OK(link)) {
+        /* Turn off statistics ASAP.  We update lp->stats below. */
+        outw(StatsDisable, ioaddr + EL3_CMD);
+        
+        /* Disable the receiver and transmitter. */
+        outw(RxDisable, ioaddr + EL3_CMD);
+        outw(TxDisable, ioaddr + EL3_CMD);
+        
+        if (dev->if_port == 2)
+            /* Turn off thinnet power.  Green! */
+            outw(StopCoax, ioaddr + EL3_CMD);
+        else if (dev->if_port == 1) {
+            /* Disable link beat and jabber */
+            EL3WINDOW(4);
+            outw(0, ioaddr + WN4_MEDIA);
+        }
+        
+        /* Switching back to window 0 disables the IRQ. */
+        EL3WINDOW(0);
+        /* But we explicitly zero the IRQ line select anyway. */
+        outw(0x0f00, ioaddr + WN0_IRQ);
+        
+        /* Check if the card still exists */
+        if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000)
+            update_stats(dev);
+    }
+
+    link->open--;
+    netif_stop_queue(dev);
+    del_timer_sync(&lp->media);
+    
+    return 0;
+}
+
+static struct pcmcia_driver tc589_driver = {
+        .owner          = THIS_MODULE,
+        .drv            = {
+                .name   = "3c589_cs",
+        },
+        .attach         = tc589_attach,
+        .detach         = tc589_detach,
+};
+
+static int __init init_tc589(void)
+{
+        return pcmcia_register_driver(&tc589_driver);
+}
+
+static void __exit exit_tc589(void)
+{
+        pcmcia_unregister_driver(&tc589_driver);
+        BUG_ON(dev_list != NULL);
+}
+
+module_init(init_tc589);
+module_exit(exit_tc589);