2006-07-27 Thomas Schwinge <tschwinge@gnu.org>

Import a number of files from the pcmcia-cs package, version 3.2.8,
	available from <http://pcmcia-cs.sourceforge.net/>.

	* linux/pcmcia-cs/clients/3c574_cs.c: Import file.
	* linux/pcmcia-cs/clients/3c589_cs.c: Likewise.
	* linux/pcmcia-cs/clients/ax8390.h: Likewise.
	* linux/pcmcia-cs/clients/axnet_cs.c: Likewise.
	* linux/pcmcia-cs/clients/fmvj18x_cs.c: Likewise.
	* linux/pcmcia-cs/clients/nmclan_cs.c: Likewise.
	* linux/pcmcia-cs/clients/ositech.h: Likewise.
	* linux/pcmcia-cs/clients/pcnet_cs.c: Likewise.
	* linux/pcmcia-cs/clients/smc91c92_cs.c: Likewise.
	* linux/pcmcia-cs/clients/xirc2ps_cs.c: Likewise.
	* linux/pcmcia-cs/include/linux/crc32.h: Likewise.
	* linux/pcmcia-cs/include/linux/init.h: Likewise.
	* linux/pcmcia-cs/include/linux/slab.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/bulkmem.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/bus_ops.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/ciscode.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/cisreg.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/cistpl.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/cs.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/cs_types.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/driver_ops.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/ds.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/mem_op.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/ss.h: Likewise.
	* linux/pcmcia-cs/include/pcmcia/version.h: Likewise.
	* linux/pcmcia-cs/modules/bulkmem.c: Likewise.
	* linux/pcmcia-cs/modules/cirrus.h: Likewise.
	* linux/pcmcia-cs/modules/cistpl.c: Likewise.
	* linux/pcmcia-cs/modules/cs.c: Likewise.
	* linux/pcmcia-cs/modules/cs_internal.h: Likewise.
	* linux/pcmcia-cs/modules/ds.c: Likewise.
	* linux/pcmcia-cs/modules/ene.h: Likewise.
	* linux/pcmcia-cs/modules/i82365.c: Likewise.
	* linux/pcmcia-cs/modules/i82365.h: Likewise.
	* linux/pcmcia-cs/modules/o2micro.h: Likewise.
	* linux/pcmcia-cs/modules/pci_fixup.c: Likewise.
	* linux/pcmcia-cs/modules/ricoh.h: Likewise.
	* linux/pcmcia-cs/modules/rsrc_mgr.c: Likewise.
	* linux/pcmcia-cs/modules/smc34c90.h: Likewise.
	* linux/pcmcia-cs/modules/ti113x.h: Likewise.
	* linux/pcmcia-cs/modules/topic.h: Likewise.
	* linux/pcmcia-cs/modules/vg468.h: Likewise.
	* linux/pcmcia-cs/modules/yenta.h: Likewise.
	* linux/pcmcia-cs/wireless/hermes.c: Likewise.
	* linux/pcmcia-cs/wireless/hermes.h: Likewise.
	* linux/pcmcia-cs/wireless/hermes_rid.h: Likewise.
	* linux/pcmcia-cs/wireless/ieee802_11.h: Likewise.
	* linux/pcmcia-cs/wireless/orinoco.c: Likewise.
	* linux/pcmcia-cs/wireless/orinoco.h: Likewise.
	* linux/pcmcia-cs/wireless/orinoco_cs.c: Likewise.

1 files changed, 1107 insertions, 0 deletions

diff --git a/linux/pcmcia-cs/clients/3c589_cs.c b/linux/pcmcia-cs/clients/3c589_cs.c
new file mode 100644
index 0000000..9794b82
--- /dev/null
+++ b/linux/pcmcia-cs/clients/3c589_cs.c
@@ -0,0 +1,1107 @@
+/*======================================================================
+
+    A PCMCIA ethernet driver for the 3com 3c589 card.
+    
+    Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
+
+    3c589_cs.c 1.167 2003/08/25 15:57:40
+
+    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
+
+======================================================================*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.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 <asm/io.h>
+#include <asm/system.h>
+#include <asm/bitops.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/ioport.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>
+
+/* 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;
+    struct net_device	dev;
+    dev_node_t 		node;
+    struct net_device_stats stats;
+    /* For transceiver monitoring */
+    struct timer_list	media;
+    u_short		media_status;
+    u_short		fast_poll;
+    u_long		last_irq;
+};
+
+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_PARM(n, "i")
+
+/* Special hook for setting if_port when module is loaded */
+INT_MODULE_PARM(if_port, 0);
+
+/* Bit map of interrupts to choose from */
+INT_MODULE_PARM(irq_mask, 0xdeb8);
+static int irq_list[4] = { -1 };
+MODULE_PARM(irq_list, "1-4i");
+
+#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 =
+"3c589_cs.c 1.167 2003/08/25 15:57:40 (David Hinds)";
+#else
+#define DEBUG(n, args...)
+#endif
+
+/*====================================================================*/
+
+static void tc589_config(dev_link_t *link);
+static void tc589_release(u_long arg);
+static int tc589_event(event_t event, int priority,
+		       event_callback_args_t *args);
+
+static u_short read_eeprom(ioaddr_t ioaddr, int index);
+static void tc589_reset(struct net_device *dev);
+static void media_check(u_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 void 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 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 = NULL;
+
+/*======================================================================
+
+    This bit of code is used to avoid unregistering network devices
+    at inappropriate times.  2.2 and later kernels are fairly picky
+    about when this can happen.
+    
+======================================================================*/
+
+static void flush_stale_links(void)
+{
+    dev_link_t *link, *next;
+    for (link = dev_list; link; link = next) {
+	next = link->next;
+	if (link->state & DEV_STALE_LINK)
+	    tc589_detach(link);
+    }
+}
+
+/*====================================================================*/
+
+static void cs_error(client_handle_t handle, int func, int ret)
+{
+    error_info_t err = { func, ret };
+    CardServices(ReportError, handle, &err);
+}
+
+/*======================================================================
+
+    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 i, ret;
+
+    DEBUG(0, "3c589_attach()\n");
+    flush_stale_links();
+    
+    /* Create new ethernet device */
+    lp = kmalloc(sizeof(*lp), GFP_KERNEL);
+    if (!lp) return NULL;
+    memset(lp, 0, sizeof(*lp));
+    link = &lp->link; dev = &lp->dev;
+    link->priv = dev->priv = link->irq.Instance = lp;
+
+    init_timer(&link->release);
+    link->release.function = &tc589_release;
+    link->release.data = (u_long)link;
+    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_INFO2_VALID|IRQ_LEVEL_ID;
+    if (irq_list[0] == -1)
+	link->irq.IRQInfo2 = irq_mask;
+    else
+	for (i = 0; i < 4; i++)
+	    link->irq.IRQInfo2 |= 1 << irq_list[i];
+    link->irq.Handler = &el3_interrupt;
+    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. */
+    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;
+    ether_setup(dev);
+    init_dev_name(dev, lp->node);
+    dev->open = &el3_open;
+    dev->stop = &el3_close;
+#ifdef HAVE_TX_TIMEOUT
+    dev->tx_timeout = el3_tx_timeout;
+    dev->watchdog_timeo = TX_TIMEOUT;
+#endif
+    
+    /* Register with Card Services */
+    link->next = dev_list;
+    dev_list = link;
+    client_reg.dev_info = &dev_info;
+    client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
+    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 = CardServices(RegisterClient, &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 el3_private *lp = 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;
+
+    del_timer(&link->release);
+    if (link->state & DEV_CONFIG) {
+	tc589_release((u_long)link);
+	if (link->state & DEV_STALE_CONFIG) {
+	    link->state |= DEV_STALE_LINK;
+	    return;
+	}
+    }
+    
+    if (link->handle)
+	CardServices(DeregisterClient, link->handle);
+    
+    /* Unlink device structure, free bits */
+    *linkp = link->next;
+    if (link->dev)
+	unregister_netdev(&lp->dev);
+    kfree(lp);
+    
+} /* 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, args...) \
+while ((last_ret=CardServices(last_fn=(fn), args))!=0) goto cs_failed
+
+static void tc589_config(dev_link_t *link)
+{
+    client_handle_t handle = link->handle;
+    struct el3_private *lp = link->priv;
+    struct net_device *dev = &lp->dev;
+    tuple_t tuple;
+    cisparse_t parse;
+    u_short buf[32], *phys_addr;
+    int last_fn, last_ret, i, j, multi = 0;
+    ioaddr_t ioaddr;
+    char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
+    
+    DEBUG(0, "3c589_config(0x%p)\n", link);
+
+    phys_addr = (u_short *)dev->dev_addr;
+    tuple.Attributes = 0;
+    tuple.DesiredTuple = CISTPL_CONFIG;
+    CS_CHECK(GetFirstTuple, handle, &tuple);
+    tuple.TupleData = (cisdata_t *)buf;
+    tuple.TupleDataMax = sizeof(buf);
+    tuple.TupleOffset = 0;
+    CS_CHECK(GetTupleData, handle, &tuple);
+    CS_CHECK(ParseTuple, 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 ((CardServices(GetFirstTuple, handle, &tuple) == CS_SUCCESS) &&
+	(CardServices(GetTupleData, 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 = CardServices(RequestIO, link->handle, &link->io);
+	if (i == CS_SUCCESS) break;
+    }
+    if (i != CS_SUCCESS) {
+	cs_error(link->handle, RequestIO, i);
+	goto failed;
+    }
+    CS_CHECK(RequestIRQ, link->handle, &link->irq);
+    CS_CHECK(RequestConfiguration, link->handle, &link->conf);
+	
+    dev->irq = link->irq.AssignedIRQ;
+    dev->base_addr = link->io.BasePort1;
+    if (register_netdev(dev) != 0) {
+	printk(KERN_NOTICE "3c589_cs: register_netdev() failed\n");
+	goto failed;
+    }
+    
+    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 (CardServices(GetFirstTuple, handle, &tuple) == CS_SUCCESS) {
+	CardServices(GetTupleData, 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_NOTICE "3c589_cs: IO port conflict at 0x%03lx"
+		   "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
+	    goto failed;
+	}
+    }
+
+    copy_dev_name(lp->node, dev);
+    link->dev = &lp->node;
+    
+    /* 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);
+
+    /* 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_NOTICE "3c589_cs: invalid if_port requested\n");
+    
+    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"));
+    i = inl(ioaddr);
+    printk(KERN_INFO "  %dK FIFO split %s Rx:Tx, %s xcvr\n",
+	   (i & 7) ? 32 : 8, ram_split[(i >> 16) & 3],
+	   if_names[dev->if_port]);
+    link->state &= ~DEV_CONFIG_PENDING;
+    return;
+
+cs_failed:
+    cs_error(link->handle, last_fn, last_ret);
+failed:
+    tc589_release((u_long)link);
+    link->state &= ~DEV_CONFIG_PENDING;
+    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(u_long arg)
+{
+    dev_link_t *link = (dev_link_t *)arg;
+
+    DEBUG(0, "3c589_release(0x%p)\n", link);
+    
+    if (link->open) {
+	DEBUG(1, "3c589_cs: release postponed, '%s' still open\n",
+	      link->dev->dev_name);
+	link->state |= DEV_STALE_CONFIG;
+	return;
+    }
+    
+    CardServices(ReleaseConfiguration, link->handle);
+    CardServices(ReleaseIO, link->handle, &link->io);
+    CardServices(ReleaseIRQ, link->handle, &link->irq);
+    
+    link->state &= ~DEV_CONFIG;
+    
+} /* tc589_release */
+
+/*======================================================================
+
+    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 el3_private *lp = link->priv;
+    struct net_device *dev = &lp->dev;
+    
+    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);
+	    mod_timer(&link->release, jiffies + HZ/20);
+	}
+	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);
+	    CardServices(ReleaseConfiguration, link->handle);
+	}
+	break;
+    case CS_EVENT_PM_RESUME:
+	link->state &= ~DEV_SUSPEND;
+	/* Fall through... */
+    case CS_EVENT_CARD_RESET:
+	if (link->state & DEV_CONFIG) {
+	    CardServices(RequestConfiguration, 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_NOTICE "%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 u_short read_eeprom(ioaddr_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 = (struct el3_private *)dev->priv;
+    ioaddr_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)
+{
+    ioaddr_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)
+{
+    ioaddr_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 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 = (struct el3_private *)dev->priv;
+    dev_link_t *link = &lp->link;
+    
+    if (!DEV_OK(link))
+	return -ENODEV;
+
+    link->open++;
+    MOD_INC_USE_COUNT;
+    netif_start_queue(dev);
+    netif_mark_up(dev);
+    
+    tc589_reset(dev);
+    lp->media.function = &media_check;
+    lp->media.data = (u_long)lp;
+    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 = (struct el3_private *)dev->priv;
+    ioaddr_t ioaddr = dev->base_addr;
+    
+    printk(KERN_NOTICE "%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 = (struct el3_private *)dev->priv;
+    ioaddr_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)
+{
+    ioaddr_t ioaddr = dev->base_addr;
+
+    tx_timeout_check(dev, el3_tx_timeout);
+    skb_tx_check(dev, skb);
+
+    DEBUG(3, "%s: el3_start_xmit(length = %ld) called, "
+	  "status %4.4x.\n", dev->name, (long)skb->len,
+	  inw(ioaddr + EL3_STATUS));
+
+    add_tx_bytes(&((struct el3_private *)dev->priv)->stats, 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_start_queue(dev);
+    } else
+	/* 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 void el3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+    struct el3_private *lp = dev_id;
+    struct net_device *dev = &lp->dev;
+    ioaddr_t ioaddr, status;
+    int i = 0;
+    
+    if (!netif_device_present(dev))
+	return;
+    ioaddr = dev->base_addr;
+
+    DEBUG(3, "%s: interrupt, status %4.4x.\n",
+	  dev->name, inw(ioaddr + EL3_STATUS));
+    
+    while ((status = inw(ioaddr + EL3_STATUS)) &
+	(IntLatch | RxComplete | StatsFull)) {
+	if (!netif_device_present(dev) ||
+	    ((status & 0xe000) != 0x2000)) {
+	    DEBUG(1, "%s: interrupt from dead card\n", dev->name);
+	    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_NOTICE "%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_NOTICE "%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;
+    DEBUG(3, "%s: exiting interrupt, status %4.4x.\n",
+	  dev->name, inw(ioaddr + EL3_STATUS));
+    return;
+}
+
+static void media_check(u_long arg)
+{
+    struct el3_private *lp = (struct el3_private *)(arg);
+    struct net_device *dev = &lp->dev;
+    ioaddr_t ioaddr = dev->base_addr;
+    u_short media, errs;
+    u_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_INFO "%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 + 1;
+	add_timer(&lp->media);
+	return;
+    }
+    
+    save_flags(flags);
+    cli();
+    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);
+    restore_flags(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 = (struct el3_private *)dev->priv;
+    unsigned long flags;
+    dev_link_t *link = &lp->link;
+
+    if (DEV_OK(link)) {
+	save_flags(flags);
+	cli();
+	update_stats(dev);
+	restore_flags(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.
+*/
+static void update_stats(struct net_device *dev)
+{
+    struct el3_private *lp = (struct el3_private *)dev->priv;
+    ioaddr_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 = (struct el3_private *)dev->priv;
+    ioaddr_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++;
+		add_rx_bytes(&lp->stats, 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_NOTICE "%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 = dev->priv;
+    dev_link_t *link = &lp->link;
+    ioaddr_t ioaddr = dev->base_addr;
+    u_short 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 = dev->priv;
+    dev_link_t *link = &lp->link;
+    ioaddr_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);
+    netif_mark_down(dev);
+    del_timer(&lp->media);
+    if (link->state & DEV_STALE_CONFIG)
+	mod_timer(&link->release, jiffies + HZ/20);
+    
+    MOD_DEC_USE_COUNT;
+    
+    return 0;
+}
+
+/*====================================================================*/
+
+static int __init init_3c589_cs(void)
+{
+    servinfo_t serv;
+    DEBUG(0, "%s\n", version);
+    CardServices(GetCardServicesInfo, &serv);
+    if (serv.Revision != CS_RELEASE_CODE) {
+	printk(KERN_NOTICE "3c589_cs: Card Services release "
+	       "does not match!\n");
+	return -EINVAL;
+    }
+    register_pccard_driver(&dev_info, &tc589_attach, &tc589_detach);
+    return 0;
+}
+
+static void __exit exit_3c589_cs(void)
+{
+    DEBUG(0, "3c589_cs: unloading\n");
+    unregister_pccard_driver(&dev_info);
+    while (dev_list != NULL)
+	tc589_detach(dev_list);
+}
+
+module_init(init_3c589_cs);
+module_exit(exit_3c589_cs);