1 /* ======================================================================
3 * A PCMCIA ethernet driver for the 3com 3c589 card.
5 * Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
7 * 3c589_cs.c 1.162 2001/10/13 00:08:50
9 * The network driver code is based on Donald Becker's 3c589 code:
11 * Written 1994 by Donald Becker.
12 * Copyright 1993 United States Government as represented by the
13 * Director, National Security Agency. This software may be used and
14 * distributed according to the terms of the GNU General Public License,
15 * incorporated herein by reference.
16 * Donald Becker may be reached at becker@scyld.com
18 * Updated for 2.5.x by Alan Cox <alan@lxorguk.ukuu.org.uk>
20 * ======================================================================
23 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
25 #define DRV_NAME "3c589_cs"
26 #define DRV_VERSION "1.162-ac"
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/ptrace.h>
31 #include <linux/slab.h>
32 #include <linux/string.h>
33 #include <linux/timer.h>
34 #include <linux/interrupt.h>
36 #include <linux/delay.h>
37 #include <linux/ethtool.h>
38 #include <linux/netdevice.h>
39 #include <linux/etherdevice.h>
40 #include <linux/skbuff.h>
41 #include <linux/if_arp.h>
42 #include <linux/ioport.h>
43 #include <linux/bitops.h>
44 #include <linux/jiffies.h>
45 #include <linux/uaccess.h>
48 #include <pcmcia/cistpl.h>
49 #include <pcmcia/cisreg.h>
50 #include <pcmcia/ciscode.h>
51 #include <pcmcia/ds.h>
54 /* To minimize the size of the driver source I only define operating
55 * constants if they are used several times. You'll need the manual
56 * if you want to understand driver details.
59 /* Offsets from base I/O address. */
61 #define EL3_TIMER 0x0a
63 #define EL3_STATUS 0x0e
65 #define EEPROM_READ 0x0080
66 #define EEPROM_BUSY 0x8000
68 #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
70 /* The top five bits written to EL3_CMD are a command, the lower
71 * 11 bits are the parameter, if applicable.
88 SetStatusEnb
= 15<<11,
90 SetRxThreshold
= 17<<11,
91 SetTxThreshold
= 18<<11,
94 StatsDisable
= 22<<11,
100 AdapterFailure
= 0x0002,
102 TxAvailable
= 0x0008,
110 /* The SetRxFilter command accepts the following classes: */
118 /* Register window 1 offsets, the window used in normal operation. */
121 #define RX_STATUS 0x08
122 #define TX_STATUS 0x0B
123 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
125 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
126 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
127 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
128 #define MEDIA_LED 0x0001 /* Enable link light on 3C589E cards. */
130 /* Time in jiffies before concluding Tx hung */
131 #define TX_TIMEOUT ((400*HZ)/1000)
134 struct pcmcia_device
*p_dev
;
135 /* For transceiver monitoring */
136 struct timer_list media
;
139 unsigned long last_irq
;
143 static const char *if_names
[] = { "auto", "10baseT", "10base2", "AUI" };
145 /*====================================================================*/
147 /* Module parameters */
149 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
150 MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver");
151 MODULE_LICENSE("GPL");
153 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
155 /* Special hook for setting if_port when module is loaded */
156 INT_MODULE_PARM(if_port
, 0);
159 /*====================================================================*/
161 static int tc589_config(struct pcmcia_device
*link
);
162 static void tc589_release(struct pcmcia_device
*link
);
164 static u16
read_eeprom(unsigned int ioaddr
, int index
);
165 static void tc589_reset(struct net_device
*dev
);
166 static void media_check(struct timer_list
*t
);
167 static int el3_config(struct net_device
*dev
, struct ifmap
*map
);
168 static int el3_open(struct net_device
*dev
);
169 static netdev_tx_t
el3_start_xmit(struct sk_buff
*skb
,
170 struct net_device
*dev
);
171 static irqreturn_t
el3_interrupt(int irq
, void *dev_id
);
172 static void update_stats(struct net_device
*dev
);
173 static struct net_device_stats
*el3_get_stats(struct net_device
*dev
);
174 static int el3_rx(struct net_device
*dev
);
175 static int el3_close(struct net_device
*dev
);
176 static void el3_tx_timeout(struct net_device
*dev
);
177 static void set_rx_mode(struct net_device
*dev
);
178 static void set_multicast_list(struct net_device
*dev
);
179 static const struct ethtool_ops netdev_ethtool_ops
;
181 static void tc589_detach(struct pcmcia_device
*p_dev
);
183 static const struct net_device_ops el3_netdev_ops
= {
184 .ndo_open
= el3_open
,
185 .ndo_stop
= el3_close
,
186 .ndo_start_xmit
= el3_start_xmit
,
187 .ndo_tx_timeout
= el3_tx_timeout
,
188 .ndo_set_config
= el3_config
,
189 .ndo_get_stats
= el3_get_stats
,
190 .ndo_set_rx_mode
= set_multicast_list
,
191 .ndo_set_mac_address
= eth_mac_addr
,
192 .ndo_validate_addr
= eth_validate_addr
,
195 static int tc589_probe(struct pcmcia_device
*link
)
197 struct el3_private
*lp
;
198 struct net_device
*dev
;
200 dev_dbg(&link
->dev
, "3c589_attach()\n");
202 /* Create new ethernet device */
203 dev
= alloc_etherdev(sizeof(struct el3_private
));
206 lp
= netdev_priv(dev
);
210 spin_lock_init(&lp
->lock
);
211 link
->resource
[0]->end
= 16;
212 link
->resource
[0]->flags
|= IO_DATA_PATH_WIDTH_16
;
214 link
->config_flags
|= CONF_ENABLE_IRQ
;
215 link
->config_index
= 1;
217 dev
->netdev_ops
= &el3_netdev_ops
;
218 dev
->watchdog_timeo
= TX_TIMEOUT
;
220 dev
->ethtool_ops
= &netdev_ethtool_ops
;
222 return tc589_config(link
);
225 static void tc589_detach(struct pcmcia_device
*link
)
227 struct net_device
*dev
= link
->priv
;
229 dev_dbg(&link
->dev
, "3c589_detach\n");
231 unregister_netdev(dev
);
238 static int tc589_config(struct pcmcia_device
*link
)
240 struct net_device
*dev
= link
->priv
;
242 int ret
, i
, j
, multi
= 0, fifo
;
244 static const char * const ram_split
[] = {"5:3", "3:1", "1:1", "3:5"};
248 dev_dbg(&link
->dev
, "3c589_config\n");
250 phys_addr
= (__be16
*)dev
->dev_addr
;
251 /* Is this a 3c562? */
252 if (link
->manf_id
!= MANFID_3COM
)
253 dev_info(&link
->dev
, "hmmm, is this really a 3Com card??\n");
254 multi
= (link
->card_id
== PRODID_3COM_3C562
);
258 /* For the 3c562, the base address must be xx00-xx7f */
259 for (i
= j
= 0; j
< 0x400; j
+= 0x10) {
260 if (multi
&& (j
& 0x80))
262 link
->resource
[0]->start
= j
^ 0x300;
263 i
= pcmcia_request_io(link
);
270 ret
= pcmcia_request_irq(link
, el3_interrupt
);
274 ret
= pcmcia_enable_device(link
);
278 dev
->irq
= link
->irq
;
279 dev
->base_addr
= link
->resource
[0]->start
;
280 ioaddr
= dev
->base_addr
;
283 /* The 3c589 has an extra EEPROM for configuration info, including
284 * the hardware address. The 3c562 puts the address in the CIS.
286 len
= pcmcia_get_tuple(link
, 0x88, &buf
);
287 if (buf
&& len
>= 6) {
288 for (i
= 0; i
< 3; i
++)
289 phys_addr
[i
] = htons(le16_to_cpu(buf
[i
*2]));
292 kfree(buf
); /* 0 < len < 6 */
293 for (i
= 0; i
< 3; i
++)
294 phys_addr
[i
] = htons(read_eeprom(ioaddr
, i
));
295 if (phys_addr
[0] == htons(0x6060)) {
296 dev_err(&link
->dev
, "IO port conflict at 0x%03lx-0x%03lx\n",
297 dev
->base_addr
, dev
->base_addr
+15);
302 /* The address and resource configuration register aren't loaded from
303 * the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version.
306 outw(0x3f00, ioaddr
+ 8);
309 /* The if_port symbol can be set when the module is loaded */
310 if ((if_port
>= 0) && (if_port
<= 3))
311 dev
->if_port
= if_port
;
313 dev_err(&link
->dev
, "invalid if_port requested\n");
315 SET_NETDEV_DEV(dev
, &link
->dev
);
317 if (register_netdev(dev
) != 0) {
318 dev_err(&link
->dev
, "register_netdev() failed\n");
322 netdev_info(dev
, "3Com 3c%s, io %#3lx, irq %d, hw_addr %pM\n",
323 (multi
? "562" : "589"), dev
->base_addr
, dev
->irq
,
325 netdev_info(dev
, " %dK FIFO split %s Rx:Tx, %s xcvr\n",
326 (fifo
& 7) ? 32 : 8, ram_split
[(fifo
>> 16) & 3],
327 if_names
[dev
->if_port
]);
335 static void tc589_release(struct pcmcia_device
*link
)
337 pcmcia_disable_device(link
);
340 static int tc589_suspend(struct pcmcia_device
*link
)
342 struct net_device
*dev
= link
->priv
;
345 netif_device_detach(dev
);
350 static int tc589_resume(struct pcmcia_device
*link
)
352 struct net_device
*dev
= link
->priv
;
356 netif_device_attach(dev
);
362 /*====================================================================*/
364 /* Use this for commands that may take time to finish */
366 static void tc589_wait_for_completion(struct net_device
*dev
, int cmd
)
369 outw(cmd
, dev
->base_addr
+ EL3_CMD
);
371 if (!(inw(dev
->base_addr
+ EL3_STATUS
) & 0x1000))
374 netdev_warn(dev
, "command 0x%04x did not complete!\n", cmd
);
377 /* Read a word from the EEPROM using the regular EEPROM access register.
378 * Assume that we are in register window zero.
381 static u16
read_eeprom(unsigned int ioaddr
, int index
)
384 outw(EEPROM_READ
+ index
, ioaddr
+ 10);
385 /* Reading the eeprom takes 162 us */
386 for (i
= 1620; i
>= 0; i
--)
387 if ((inw(ioaddr
+ 10) & EEPROM_BUSY
) == 0)
389 return inw(ioaddr
+ 12);
392 /* Set transceiver type, perhaps to something other than what the user
393 * specified in dev->if_port.
396 static void tc589_set_xcvr(struct net_device
*dev
, int if_port
)
398 struct el3_private
*lp
= netdev_priv(dev
);
399 unsigned int ioaddr
= dev
->base_addr
;
408 outw(3<<14, ioaddr
+ 6);
411 outw(1<<14, ioaddr
+ 6);
414 /* On PCMCIA, this just turns on the LED */
415 outw((if_port
== 2) ? StartCoax
: StopCoax
, ioaddr
+ EL3_CMD
);
416 /* 10baseT interface, enable link beat and jabber check. */
418 outw(MEDIA_LED
| ((if_port
< 2) ? MEDIA_TP
: 0), ioaddr
+ WN4_MEDIA
);
421 lp
->media_status
= ((dev
->if_port
== 0) ? 0x8000 : 0x4000);
423 lp
->media_status
= ((dev
->if_port
== 0) ? 0x4010 : 0x8800);
426 static void dump_status(struct net_device
*dev
)
428 unsigned int ioaddr
= dev
->base_addr
;
430 netdev_info(dev
, " irq status %04x, rx status %04x, tx status %02x tx free %04x\n",
431 inw(ioaddr
+EL3_STATUS
), inw(ioaddr
+RX_STATUS
),
432 inb(ioaddr
+TX_STATUS
), inw(ioaddr
+TX_FREE
));
434 netdev_info(dev
, " diagnostics: fifo %04x net %04x ethernet %04x media %04x\n",
435 inw(ioaddr
+0x04), inw(ioaddr
+0x06), inw(ioaddr
+0x08),
440 /* Reset and restore all of the 3c589 registers. */
441 static void tc589_reset(struct net_device
*dev
)
443 unsigned int ioaddr
= dev
->base_addr
;
447 outw(0x0001, ioaddr
+ 4); /* Activate board. */
448 outw(0x3f00, ioaddr
+ 8); /* Set the IRQ line. */
450 /* Set the station address in window 2. */
452 for (i
= 0; i
< 6; i
++)
453 outb(dev
->dev_addr
[i
], ioaddr
+ i
);
455 tc589_set_xcvr(dev
, dev
->if_port
);
457 /* Switch to the stats window, and clear all stats by reading. */
458 outw(StatsDisable
, ioaddr
+ EL3_CMD
);
460 for (i
= 0; i
< 9; i
++)
465 /* Switch to register set 1 for normal use. */
469 outw(StatsEnable
, ioaddr
+ EL3_CMD
); /* Turn on statistics. */
470 outw(RxEnable
, ioaddr
+ EL3_CMD
); /* Enable the receiver. */
471 outw(TxEnable
, ioaddr
+ EL3_CMD
); /* Enable transmitter. */
472 /* Allow status bits to be seen. */
473 outw(SetStatusEnb
| 0xff, ioaddr
+ EL3_CMD
);
474 /* Ack all pending events, and set active indicator mask. */
475 outw(AckIntr
| IntLatch
| TxAvailable
| RxEarly
| IntReq
,
477 outw(SetIntrEnb
| IntLatch
| TxAvailable
| RxComplete
| StatsFull
478 | AdapterFailure
, ioaddr
+ EL3_CMD
);
481 static void netdev_get_drvinfo(struct net_device
*dev
,
482 struct ethtool_drvinfo
*info
)
484 strlcpy(info
->driver
, DRV_NAME
, sizeof(info
->driver
));
485 strlcpy(info
->version
, DRV_VERSION
, sizeof(info
->version
));
486 snprintf(info
->bus_info
, sizeof(info
->bus_info
),
487 "PCMCIA 0x%lx", dev
->base_addr
);
490 static const struct ethtool_ops netdev_ethtool_ops
= {
491 .get_drvinfo
= netdev_get_drvinfo
,
494 static int el3_config(struct net_device
*dev
, struct ifmap
*map
)
496 if ((map
->port
!= (u_char
)(-1)) && (map
->port
!= dev
->if_port
)) {
497 if (map
->port
<= 3) {
498 dev
->if_port
= map
->port
;
499 netdev_info(dev
, "switched to %s port\n", if_names
[dev
->if_port
]);
500 tc589_set_xcvr(dev
, dev
->if_port
);
508 static int el3_open(struct net_device
*dev
)
510 struct el3_private
*lp
= netdev_priv(dev
);
511 struct pcmcia_device
*link
= lp
->p_dev
;
513 if (!pcmcia_dev_present(link
))
517 netif_start_queue(dev
);
520 timer_setup(&lp
->media
, media_check
, 0);
521 mod_timer(&lp
->media
, jiffies
+ HZ
);
523 dev_dbg(&link
->dev
, "%s: opened, status %4.4x.\n",
524 dev
->name
, inw(dev
->base_addr
+ EL3_STATUS
));
529 static void el3_tx_timeout(struct net_device
*dev
)
531 unsigned int ioaddr
= dev
->base_addr
;
533 netdev_warn(dev
, "Transmit timed out!\n");
535 dev
->stats
.tx_errors
++;
536 netif_trans_update(dev
); /* prevent tx timeout */
537 /* Issue TX_RESET and TX_START commands. */
538 tc589_wait_for_completion(dev
, TxReset
);
539 outw(TxEnable
, ioaddr
+ EL3_CMD
);
540 netif_wake_queue(dev
);
543 static void pop_tx_status(struct net_device
*dev
)
545 unsigned int ioaddr
= dev
->base_addr
;
548 /* Clear the Tx status stack. */
549 for (i
= 32; i
> 0; i
--) {
550 u_char tx_status
= inb(ioaddr
+ TX_STATUS
);
551 if (!(tx_status
& 0x84))
553 /* reset transmitter on jabber error or underrun */
554 if (tx_status
& 0x30)
555 tc589_wait_for_completion(dev
, TxReset
);
556 if (tx_status
& 0x38) {
557 netdev_dbg(dev
, "transmit error: status 0x%02x\n", tx_status
);
558 outw(TxEnable
, ioaddr
+ EL3_CMD
);
559 dev
->stats
.tx_aborted_errors
++;
561 outb(0x00, ioaddr
+ TX_STATUS
); /* Pop the status stack. */
565 static netdev_tx_t
el3_start_xmit(struct sk_buff
*skb
,
566 struct net_device
*dev
)
568 unsigned int ioaddr
= dev
->base_addr
;
569 struct el3_private
*priv
= netdev_priv(dev
);
572 netdev_dbg(dev
, "el3_start_xmit(length = %ld) called, status %4.4x.\n",
573 (long)skb
->len
, inw(ioaddr
+ EL3_STATUS
));
575 spin_lock_irqsave(&priv
->lock
, flags
);
577 dev
->stats
.tx_bytes
+= skb
->len
;
579 /* Put out the doubleword header... */
580 outw(skb
->len
, ioaddr
+ TX_FIFO
);
581 outw(0x00, ioaddr
+ TX_FIFO
);
582 /* ... and the packet rounded to a doubleword. */
583 outsl(ioaddr
+ TX_FIFO
, skb
->data
, (skb
->len
+ 3) >> 2);
585 if (inw(ioaddr
+ TX_FREE
) <= 1536) {
586 netif_stop_queue(dev
);
587 /* Interrupt us when the FIFO has room for max-sized packet. */
588 outw(SetTxThreshold
+ 1536, ioaddr
+ EL3_CMD
);
592 spin_unlock_irqrestore(&priv
->lock
, flags
);
598 /* The EL3 interrupt handler. */
599 static irqreturn_t
el3_interrupt(int irq
, void *dev_id
)
601 struct net_device
*dev
= (struct net_device
*) dev_id
;
602 struct el3_private
*lp
= netdev_priv(dev
);
605 int i
= 0, handled
= 1;
607 if (!netif_device_present(dev
))
610 ioaddr
= dev
->base_addr
;
612 netdev_dbg(dev
, "interrupt, status %4.4x.\n", inw(ioaddr
+ EL3_STATUS
));
614 spin_lock(&lp
->lock
);
615 while ((status
= inw(ioaddr
+ EL3_STATUS
)) &
616 (IntLatch
| RxComplete
| StatsFull
)) {
617 if ((status
& 0xe000) != 0x2000) {
618 netdev_dbg(dev
, "interrupt from dead card\n");
622 if (status
& RxComplete
)
624 if (status
& TxAvailable
) {
625 netdev_dbg(dev
, " TX room bit was handled.\n");
626 /* There's room in the FIFO for a full-sized packet. */
627 outw(AckIntr
| TxAvailable
, ioaddr
+ EL3_CMD
);
628 netif_wake_queue(dev
);
630 if (status
& TxComplete
)
632 if (status
& (AdapterFailure
| RxEarly
| StatsFull
)) {
633 /* Handle all uncommon interrupts. */
634 if (status
& StatsFull
) /* Empty statistics. */
636 if (status
& RxEarly
) {
637 /* Rx early is unused. */
639 outw(AckIntr
| RxEarly
, ioaddr
+ EL3_CMD
);
641 if (status
& AdapterFailure
) {
644 fifo_diag
= inw(ioaddr
+ 4);
646 netdev_warn(dev
, "adapter failure, FIFO diagnostic register %04x.\n",
648 if (fifo_diag
& 0x0400) {
650 tc589_wait_for_completion(dev
, TxReset
);
651 outw(TxEnable
, ioaddr
+ EL3_CMD
);
653 if (fifo_diag
& 0x2000) {
655 tc589_wait_for_completion(dev
, RxReset
);
657 outw(RxEnable
, ioaddr
+ EL3_CMD
);
659 outw(AckIntr
| AdapterFailure
, ioaddr
+ EL3_CMD
);
663 netdev_err(dev
, "infinite loop in interrupt, status %4.4x.\n",
665 /* Clear all interrupts */
666 outw(AckIntr
| 0xFF, ioaddr
+ EL3_CMD
);
669 /* Acknowledge the IRQ. */
670 outw(AckIntr
| IntReq
| IntLatch
, ioaddr
+ EL3_CMD
);
672 lp
->last_irq
= jiffies
;
673 spin_unlock(&lp
->lock
);
674 netdev_dbg(dev
, "exiting interrupt, status %4.4x.\n",
675 inw(ioaddr
+ EL3_STATUS
));
676 return IRQ_RETVAL(handled
);
679 static void media_check(struct timer_list
*t
)
681 struct el3_private
*lp
= from_timer(lp
, t
, media
);
682 struct net_device
*dev
= lp
->p_dev
->priv
;
683 unsigned int ioaddr
= dev
->base_addr
;
687 if (!netif_device_present(dev
))
690 /* Check for pending interrupt with expired latency timer: with
691 * this, we can limp along even if the interrupt is blocked
693 if ((inw(ioaddr
+ EL3_STATUS
) & IntLatch
) &&
694 (inb(ioaddr
+ EL3_TIMER
) == 0xff)) {
696 netdev_warn(dev
, "interrupt(s) dropped!\n");
698 local_irq_save(flags
);
699 el3_interrupt(dev
->irq
, dev
);
700 local_irq_restore(flags
);
706 lp
->media
.expires
= jiffies
+ HZ
/100;
707 add_timer(&lp
->media
);
711 /* lp->lock guards the EL3 window. Window should always be 1 except
712 * when the lock is held
715 spin_lock_irqsave(&lp
->lock
, flags
);
717 media
= inw(ioaddr
+WN4_MEDIA
) & 0xc810;
719 /* Ignore collisions unless we've had no irq's recently */
720 if (time_before(jiffies
, lp
->last_irq
+ HZ
)) {
723 /* Try harder to detect carrier errors */
725 outw(StatsDisable
, ioaddr
+ EL3_CMD
);
726 errs
= inb(ioaddr
+ 0);
727 outw(StatsEnable
, ioaddr
+ EL3_CMD
);
728 dev
->stats
.tx_carrier_errors
+= errs
;
729 if (errs
|| (lp
->media_status
& 0x0010))
733 if (media
!= lp
->media_status
) {
734 if ((media
& lp
->media_status
& 0x8000) &&
735 ((lp
->media_status
^ media
) & 0x0800))
736 netdev_info(dev
, "%s link beat\n",
737 (lp
->media_status
& 0x0800 ? "lost" : "found"));
738 else if ((media
& lp
->media_status
& 0x4000) &&
739 ((lp
->media_status
^ media
) & 0x0010))
740 netdev_info(dev
, "coax cable %s\n",
741 (lp
->media_status
& 0x0010 ? "ok" : "problem"));
742 if (dev
->if_port
== 0) {
743 if (media
& 0x8000) {
745 netdev_info(dev
, "flipped to 10baseT\n");
747 tc589_set_xcvr(dev
, 2);
748 } else if (media
& 0x4000) {
750 tc589_set_xcvr(dev
, 1);
752 netdev_info(dev
, "flipped to 10base2\n");
755 lp
->media_status
= media
;
759 spin_unlock_irqrestore(&lp
->lock
, flags
);
762 lp
->media
.expires
= jiffies
+ HZ
;
763 add_timer(&lp
->media
);
766 static struct net_device_stats
*el3_get_stats(struct net_device
*dev
)
768 struct el3_private
*lp
= netdev_priv(dev
);
770 struct pcmcia_device
*link
= lp
->p_dev
;
772 if (pcmcia_dev_present(link
)) {
773 spin_lock_irqsave(&lp
->lock
, flags
);
775 spin_unlock_irqrestore(&lp
->lock
, flags
);
780 /* Update statistics. We change to register window 6, so this should be run
781 * single-threaded if the device is active. This is expected to be a rare
782 * operation, and it's simpler for the rest of the driver to assume that
783 * window 1 is always valid rather than use a special window-state variable.
785 * Caller must hold the lock for this
788 static void update_stats(struct net_device
*dev
)
790 unsigned int ioaddr
= dev
->base_addr
;
792 netdev_dbg(dev
, "updating the statistics.\n");
793 /* Turn off statistics updates while reading. */
794 outw(StatsDisable
, ioaddr
+ EL3_CMD
);
795 /* Switch to the stats window, and read everything. */
797 dev
->stats
.tx_carrier_errors
+= inb(ioaddr
+ 0);
798 dev
->stats
.tx_heartbeat_errors
+= inb(ioaddr
+ 1);
799 /* Multiple collisions. */
801 dev
->stats
.collisions
+= inb(ioaddr
+ 3);
802 dev
->stats
.tx_window_errors
+= inb(ioaddr
+ 4);
803 dev
->stats
.rx_fifo_errors
+= inb(ioaddr
+ 5);
804 dev
->stats
.tx_packets
+= inb(ioaddr
+ 6);
814 /* Back to window 1, and turn statistics back on. */
816 outw(StatsEnable
, ioaddr
+ EL3_CMD
);
819 static int el3_rx(struct net_device
*dev
)
821 unsigned int ioaddr
= dev
->base_addr
;
825 netdev_dbg(dev
, "in rx_packet(), status %4.4x, rx_status %4.4x.\n",
826 inw(ioaddr
+EL3_STATUS
), inw(ioaddr
+RX_STATUS
));
827 while (!((rx_status
= inw(ioaddr
+ RX_STATUS
)) & 0x8000) &&
830 if (rx_status
& 0x4000) { /* Error, update stats. */
831 short error
= rx_status
& 0x3800;
832 dev
->stats
.rx_errors
++;
835 dev
->stats
.rx_over_errors
++;
838 dev
->stats
.rx_length_errors
++;
841 dev
->stats
.rx_frame_errors
++;
844 dev
->stats
.rx_length_errors
++;
847 dev
->stats
.rx_frame_errors
++;
850 dev
->stats
.rx_crc_errors
++;
854 short pkt_len
= rx_status
& 0x7ff;
857 skb
= netdev_alloc_skb(dev
, pkt_len
+ 5);
859 netdev_dbg(dev
, " Receiving packet size %d status %4.4x.\n",
863 insl(ioaddr
+RX_FIFO
, skb_put(skb
, pkt_len
),
865 skb
->protocol
= eth_type_trans(skb
, dev
);
867 dev
->stats
.rx_packets
++;
868 dev
->stats
.rx_bytes
+= pkt_len
;
870 netdev_dbg(dev
, "couldn't allocate a sk_buff of size %d.\n",
872 dev
->stats
.rx_dropped
++;
875 /* Pop the top of the Rx FIFO */
876 tc589_wait_for_completion(dev
, RxDiscard
);
879 netdev_warn(dev
, "too much work in el3_rx!\n");
883 static void set_rx_mode(struct net_device
*dev
)
885 unsigned int ioaddr
= dev
->base_addr
;
886 u16 opts
= SetRxFilter
| RxStation
| RxBroadcast
;
888 if (dev
->flags
& IFF_PROMISC
)
889 opts
|= RxMulticast
| RxProm
;
890 else if (!netdev_mc_empty(dev
) || (dev
->flags
& IFF_ALLMULTI
))
892 outw(opts
, ioaddr
+ EL3_CMD
);
895 static void set_multicast_list(struct net_device
*dev
)
897 struct el3_private
*priv
= netdev_priv(dev
);
900 spin_lock_irqsave(&priv
->lock
, flags
);
902 spin_unlock_irqrestore(&priv
->lock
, flags
);
905 static int el3_close(struct net_device
*dev
)
907 struct el3_private
*lp
= netdev_priv(dev
);
908 struct pcmcia_device
*link
= lp
->p_dev
;
909 unsigned int ioaddr
= dev
->base_addr
;
911 dev_dbg(&link
->dev
, "%s: shutting down ethercard.\n", dev
->name
);
913 if (pcmcia_dev_present(link
)) {
914 /* Turn off statistics ASAP. We update dev->stats below. */
915 outw(StatsDisable
, ioaddr
+ EL3_CMD
);
917 /* Disable the receiver and transmitter. */
918 outw(RxDisable
, ioaddr
+ EL3_CMD
);
919 outw(TxDisable
, ioaddr
+ EL3_CMD
);
921 if (dev
->if_port
== 2)
922 /* Turn off thinnet power. Green! */
923 outw(StopCoax
, ioaddr
+ EL3_CMD
);
924 else if (dev
->if_port
== 1) {
925 /* Disable link beat and jabber */
927 outw(0, ioaddr
+ WN4_MEDIA
);
930 /* Switching back to window 0 disables the IRQ. */
932 /* But we explicitly zero the IRQ line select anyway. */
933 outw(0x0f00, ioaddr
+ WN0_IRQ
);
935 /* Check if the card still exists */
936 if ((inw(ioaddr
+EL3_STATUS
) & 0xe000) == 0x2000)
941 netif_stop_queue(dev
);
942 del_timer_sync(&lp
->media
);
947 static const struct pcmcia_device_id tc589_ids
[] = {
948 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
949 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
950 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
951 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
952 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
953 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
956 MODULE_DEVICE_TABLE(pcmcia
, tc589_ids
);
958 static struct pcmcia_driver tc589_driver
= {
959 .owner
= THIS_MODULE
,
961 .probe
= tc589_probe
,
962 .remove
= tc589_detach
,
963 .id_table
= tc589_ids
,
964 .suspend
= tc589_suspend
,
965 .resume
= tc589_resume
,
967 module_pcmcia_driver(tc589_driver
);