1082 lines
32 KiB
C
1082 lines
32 KiB
C
|
/*======================================================================
|
||
|
|
|
||
|
|
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);
|