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 ======================================================================*/
22 #define DRV_NAME "3c589_cs"
23 #define DRV_VERSION "1.162-ac"
25 #include <linux/module.h>
26 #include <linux/init.h>
27 #include <linux/kernel.h>
28 #include <linux/ptrace.h>
29 #include <linux/slab.h>
30 #include <linux/string.h>
31 #include <linux/timer.h>
32 #include <linux/interrupt.h>
34 #include <linux/delay.h>
35 #include <linux/ethtool.h>
36 #include <linux/netdevice.h>
37 #include <linux/etherdevice.h>
38 #include <linux/skbuff.h>
39 #include <linux/if_arp.h>
40 #include <linux/ioport.h>
41 #include <linux/bitops.h>
42 #include <linux/jiffies.h>
44 #include <pcmcia/cs.h>
45 #include <pcmcia/cistpl.h>
46 #include <pcmcia/cisreg.h>
47 #include <pcmcia/ciscode.h>
48 #include <pcmcia/ds.h>
50 #include <asm/uaccess.h>
52 #include <asm/system.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. */
57 /* Offsets from base I/O address. */
59 #define EL3_TIMER 0x0a
61 #define EL3_STATUS 0x0e
63 #define EEPROM_READ 0x0080
64 #define EEPROM_BUSY 0x8000
66 #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
68 /* The top five bits written to EL3_CMD are a command, the lower
69 11 bits are the parameter, if applicable. */
84 SetStatusEnb
= 15<<11,
86 SetRxThreshold
= 17<<11,
87 SetTxThreshold
= 18<<11,
90 StatsDisable
= 22<<11,
96 AdapterFailure
= 0x0002,
106 /* The SetRxFilter command accepts the following classes: */
114 /* Register window 1 offsets, the window used in normal operation. */
117 #define RX_STATUS 0x08
118 #define TX_STATUS 0x0B
119 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
121 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
122 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
123 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
124 #define MEDIA_LED 0x0001 /* Enable link light on 3C589E cards. */
126 /* Time in jiffies before concluding Tx hung */
127 #define TX_TIMEOUT ((400*HZ)/1000)
130 struct pcmcia_device
*p_dev
;
131 /* For transceiver monitoring */
132 struct timer_list media
;
135 unsigned long last_irq
;
139 static const char *if_names
[] = { "auto", "10baseT", "10base2", "AUI" };
141 /*====================================================================*/
143 /* Module parameters */
145 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
146 MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver");
147 MODULE_LICENSE("GPL");
149 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
151 /* Special hook for setting if_port when module is loaded */
152 INT_MODULE_PARM(if_port
, 0);
155 /*====================================================================*/
157 static int tc589_config(struct pcmcia_device
*link
);
158 static void tc589_release(struct pcmcia_device
*link
);
160 static u16
read_eeprom(unsigned int ioaddr
, int index
);
161 static void tc589_reset(struct net_device
*dev
);
162 static void media_check(unsigned long arg
);
163 static int el3_config(struct net_device
*dev
, struct ifmap
*map
);
164 static int el3_open(struct net_device
*dev
);
165 static netdev_tx_t
el3_start_xmit(struct sk_buff
*skb
,
166 struct net_device
*dev
);
167 static irqreturn_t
el3_interrupt(int irq
, void *dev_id
);
168 static void update_stats(struct net_device
*dev
);
169 static struct net_device_stats
*el3_get_stats(struct net_device
*dev
);
170 static int el3_rx(struct net_device
*dev
);
171 static int el3_close(struct net_device
*dev
);
172 static void el3_tx_timeout(struct net_device
*dev
);
173 static void set_rx_mode(struct net_device
*dev
);
174 static void set_multicast_list(struct net_device
*dev
);
175 static const struct ethtool_ops netdev_ethtool_ops
;
177 static void tc589_detach(struct pcmcia_device
*p_dev
);
179 /*======================================================================
181 tc589_attach() creates an "instance" of the driver, allocating
182 local data structures for one device. The device is registered
185 ======================================================================*/
187 static const struct net_device_ops el3_netdev_ops
= {
188 .ndo_open
= el3_open
,
189 .ndo_stop
= el3_close
,
190 .ndo_start_xmit
= el3_start_xmit
,
191 .ndo_tx_timeout
= el3_tx_timeout
,
192 .ndo_set_config
= el3_config
,
193 .ndo_get_stats
= el3_get_stats
,
194 .ndo_set_multicast_list
= set_multicast_list
,
195 .ndo_change_mtu
= eth_change_mtu
,
196 .ndo_set_mac_address
= eth_mac_addr
,
197 .ndo_validate_addr
= eth_validate_addr
,
200 static int tc589_probe(struct pcmcia_device
*link
)
202 struct el3_private
*lp
;
203 struct net_device
*dev
;
205 dev_dbg(&link
->dev
, "3c589_attach()\n");
207 /* Create new ethernet device */
208 dev
= alloc_etherdev(sizeof(struct el3_private
));
211 lp
= netdev_priv(dev
);
215 spin_lock_init(&lp
->lock
);
216 link
->resource
[0]->end
= 16;
217 link
->resource
[0]->flags
|= IO_DATA_PATH_WIDTH_16
;
219 link
->conf
.Attributes
= CONF_ENABLE_IRQ
;
220 link
->conf
.IntType
= INT_MEMORY_AND_IO
;
221 link
->conf
.ConfigIndex
= 1;
223 dev
->netdev_ops
= &el3_netdev_ops
;
224 dev
->watchdog_timeo
= TX_TIMEOUT
;
226 SET_ETHTOOL_OPS(dev
, &netdev_ethtool_ops
);
228 return tc589_config(link
);
231 /*======================================================================
233 This deletes a driver "instance". The device is de-registered
234 with Card Services. If it has been released, all local data
235 structures are freed. Otherwise, the structures will be freed
236 when the device is released.
238 ======================================================================*/
240 static void tc589_detach(struct pcmcia_device
*link
)
242 struct net_device
*dev
= link
->priv
;
244 dev_dbg(&link
->dev
, "3c589_detach\n");
246 unregister_netdev(dev
);
253 /*======================================================================
255 tc589_config() is scheduled to run after a CARD_INSERTION event
256 is received, to configure the PCMCIA socket, and to make the
257 ethernet device available to the system.
259 ======================================================================*/
261 static int tc589_config(struct pcmcia_device
*link
)
263 struct net_device
*dev
= link
->priv
;
265 int ret
, i
, j
, multi
= 0, fifo
;
267 char *ram_split
[] = {"5:3", "3:1", "1:1", "3:5"};
271 dev_dbg(&link
->dev
, "3c589_config\n");
273 phys_addr
= (__be16
*)dev
->dev_addr
;
274 /* Is this a 3c562? */
275 if (link
->manf_id
!= MANFID_3COM
)
276 printk(KERN_INFO
"3c589_cs: hmmm, is this really a "
278 multi
= (link
->card_id
== PRODID_3COM_3C562
);
282 /* For the 3c562, the base address must be xx00-xx7f */
283 for (i
= j
= 0; j
< 0x400; j
+= 0x10) {
284 if (multi
&& (j
& 0x80)) continue;
285 link
->resource
[0]->start
= j
^ 0x300;
286 i
= pcmcia_request_io(link
);
293 ret
= pcmcia_request_irq(link
, el3_interrupt
);
297 ret
= pcmcia_request_configuration(link
, &link
->conf
);
301 dev
->irq
= link
->irq
;
302 dev
->base_addr
= link
->resource
[0]->start
;
303 ioaddr
= dev
->base_addr
;
306 /* The 3c589 has an extra EEPROM for configuration info, including
307 the hardware address. The 3c562 puts the address in the CIS. */
308 len
= pcmcia_get_tuple(link
, 0x88, &buf
);
309 if (buf
&& len
>= 6) {
310 for (i
= 0; i
< 3; i
++)
311 phys_addr
[i
] = htons(le16_to_cpu(buf
[i
*2]));
314 kfree(buf
); /* 0 < len < 6 */
315 for (i
= 0; i
< 3; i
++)
316 phys_addr
[i
] = htons(read_eeprom(ioaddr
, i
));
317 if (phys_addr
[0] == htons(0x6060)) {
318 printk(KERN_ERR
"3c589_cs: IO port conflict at 0x%03lx"
319 "-0x%03lx\n", dev
->base_addr
, dev
->base_addr
+15);
324 /* The address and resource configuration register aren't loaded from
325 the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */
326 outw(0x3f00, ioaddr
+ 8);
329 /* The if_port symbol can be set when the module is loaded */
330 if ((if_port
>= 0) && (if_port
<= 3))
331 dev
->if_port
= if_port
;
333 printk(KERN_ERR
"3c589_cs: invalid if_port requested\n");
335 SET_NETDEV_DEV(dev
, &link
->dev
);
337 if (register_netdev(dev
) != 0) {
338 printk(KERN_ERR
"3c589_cs: register_netdev() failed\n");
342 netdev_info(dev
, "3Com 3c%s, io %#3lx, irq %d, hw_addr %pM\n",
343 (multi
? "562" : "589"), dev
->base_addr
, dev
->irq
,
345 netdev_info(dev
, " %dK FIFO split %s Rx:Tx, %s xcvr\n",
346 (fifo
& 7) ? 32 : 8, ram_split
[(fifo
>> 16) & 3],
347 if_names
[dev
->if_port
]);
355 /*======================================================================
357 After a card is removed, tc589_release() will unregister the net
358 device, and release the PCMCIA configuration. If the device is
359 still open, this will be postponed until it is closed.
361 ======================================================================*/
363 static void tc589_release(struct pcmcia_device
*link
)
365 pcmcia_disable_device(link
);
368 static int tc589_suspend(struct pcmcia_device
*link
)
370 struct net_device
*dev
= link
->priv
;
373 netif_device_detach(dev
);
378 static int tc589_resume(struct pcmcia_device
*link
)
380 struct net_device
*dev
= link
->priv
;
384 netif_device_attach(dev
);
390 /*====================================================================*/
393 Use this for commands that may take time to finish
395 static void tc589_wait_for_completion(struct net_device
*dev
, int cmd
)
398 outw(cmd
, dev
->base_addr
+ EL3_CMD
);
400 if (!(inw(dev
->base_addr
+ EL3_STATUS
) & 0x1000)) break;
402 netdev_warn(dev
, "command 0x%04x did not complete!\n", cmd
);
406 Read a word from the EEPROM using the regular EEPROM access register.
407 Assume that we are in register window zero.
409 static u16
read_eeprom(unsigned int ioaddr
, int index
)
412 outw(EEPROM_READ
+ index
, ioaddr
+ 10);
413 /* Reading the eeprom takes 162 us */
414 for (i
= 1620; i
>= 0; i
--)
415 if ((inw(ioaddr
+ 10) & EEPROM_BUSY
) == 0)
417 return inw(ioaddr
+ 12);
421 Set transceiver type, perhaps to something other than what the user
422 specified in dev->if_port.
424 static void tc589_set_xcvr(struct net_device
*dev
, int if_port
)
426 struct el3_private
*lp
= netdev_priv(dev
);
427 unsigned int ioaddr
= dev
->base_addr
;
431 case 0: case 1: outw(0, ioaddr
+ 6); break;
432 case 2: outw(3<<14, ioaddr
+ 6); break;
433 case 3: outw(1<<14, ioaddr
+ 6); break;
435 /* On PCMCIA, this just turns on the LED */
436 outw((if_port
== 2) ? StartCoax
: StopCoax
, ioaddr
+ EL3_CMD
);
437 /* 10baseT interface, enable link beat and jabber check. */
439 outw(MEDIA_LED
| ((if_port
< 2) ? MEDIA_TP
: 0), ioaddr
+ WN4_MEDIA
);
442 lp
->media_status
= ((dev
->if_port
== 0) ? 0x8000 : 0x4000);
444 lp
->media_status
= ((dev
->if_port
== 0) ? 0x4010 : 0x8800);
447 static void dump_status(struct net_device
*dev
)
449 unsigned int ioaddr
= dev
->base_addr
;
451 netdev_info(dev
, " irq status %04x, rx status %04x, tx status %02x tx free %04x\n",
452 inw(ioaddr
+EL3_STATUS
), inw(ioaddr
+RX_STATUS
),
453 inb(ioaddr
+TX_STATUS
), inw(ioaddr
+TX_FREE
));
455 netdev_info(dev
, " diagnostics: fifo %04x net %04x ethernet %04x media %04x\n",
456 inw(ioaddr
+0x04), inw(ioaddr
+0x06), inw(ioaddr
+0x08),
461 /* Reset and restore all of the 3c589 registers. */
462 static void tc589_reset(struct net_device
*dev
)
464 unsigned int ioaddr
= dev
->base_addr
;
468 outw(0x0001, ioaddr
+ 4); /* Activate board. */
469 outw(0x3f00, ioaddr
+ 8); /* Set the IRQ line. */
471 /* Set the station address in window 2. */
473 for (i
= 0; i
< 6; i
++)
474 outb(dev
->dev_addr
[i
], ioaddr
+ i
);
476 tc589_set_xcvr(dev
, dev
->if_port
);
478 /* Switch to the stats window, and clear all stats by reading. */
479 outw(StatsDisable
, ioaddr
+ EL3_CMD
);
481 for (i
= 0; i
< 9; i
++)
486 /* Switch to register set 1 for normal use. */
490 outw(StatsEnable
, ioaddr
+ EL3_CMD
); /* Turn on statistics. */
491 outw(RxEnable
, ioaddr
+ EL3_CMD
); /* Enable the receiver. */
492 outw(TxEnable
, ioaddr
+ EL3_CMD
); /* Enable transmitter. */
493 /* Allow status bits to be seen. */
494 outw(SetStatusEnb
| 0xff, ioaddr
+ EL3_CMD
);
495 /* Ack all pending events, and set active indicator mask. */
496 outw(AckIntr
| IntLatch
| TxAvailable
| RxEarly
| IntReq
,
498 outw(SetIntrEnb
| IntLatch
| TxAvailable
| RxComplete
| StatsFull
499 | AdapterFailure
, ioaddr
+ EL3_CMD
);
502 static void netdev_get_drvinfo(struct net_device
*dev
,
503 struct ethtool_drvinfo
*info
)
505 strcpy(info
->driver
, DRV_NAME
);
506 strcpy(info
->version
, DRV_VERSION
);
507 sprintf(info
->bus_info
, "PCMCIA 0x%lx", dev
->base_addr
);
510 static const struct ethtool_ops netdev_ethtool_ops
= {
511 .get_drvinfo
= netdev_get_drvinfo
,
514 static int el3_config(struct net_device
*dev
, struct ifmap
*map
)
516 if ((map
->port
!= (u_char
)(-1)) && (map
->port
!= dev
->if_port
)) {
517 if (map
->port
<= 3) {
518 dev
->if_port
= map
->port
;
519 netdev_info(dev
, "switched to %s port\n", if_names
[dev
->if_port
]);
520 tc589_set_xcvr(dev
, dev
->if_port
);
527 static int el3_open(struct net_device
*dev
)
529 struct el3_private
*lp
= netdev_priv(dev
);
530 struct pcmcia_device
*link
= lp
->p_dev
;
532 if (!pcmcia_dev_present(link
))
536 netif_start_queue(dev
);
539 init_timer(&lp
->media
);
540 lp
->media
.function
= &media_check
;
541 lp
->media
.data
= (unsigned long) dev
;
542 lp
->media
.expires
= jiffies
+ HZ
;
543 add_timer(&lp
->media
);
545 dev_dbg(&link
->dev
, "%s: opened, status %4.4x.\n",
546 dev
->name
, inw(dev
->base_addr
+ EL3_STATUS
));
551 static void el3_tx_timeout(struct net_device
*dev
)
553 unsigned int ioaddr
= dev
->base_addr
;
555 netdev_warn(dev
, "Transmit timed out!\n");
557 dev
->stats
.tx_errors
++;
558 dev
->trans_start
= jiffies
; /* prevent tx timeout */
559 /* Issue TX_RESET and TX_START commands. */
560 tc589_wait_for_completion(dev
, TxReset
);
561 outw(TxEnable
, ioaddr
+ EL3_CMD
);
562 netif_wake_queue(dev
);
565 static void pop_tx_status(struct net_device
*dev
)
567 unsigned int ioaddr
= dev
->base_addr
;
570 /* Clear the Tx status stack. */
571 for (i
= 32; i
> 0; i
--) {
572 u_char tx_status
= inb(ioaddr
+ TX_STATUS
);
573 if (!(tx_status
& 0x84)) break;
574 /* reset transmitter on jabber error or underrun */
575 if (tx_status
& 0x30)
576 tc589_wait_for_completion(dev
, TxReset
);
577 if (tx_status
& 0x38) {
578 netdev_dbg(dev
, "transmit error: status 0x%02x\n", tx_status
);
579 outw(TxEnable
, ioaddr
+ EL3_CMD
);
580 dev
->stats
.tx_aborted_errors
++;
582 outb(0x00, ioaddr
+ TX_STATUS
); /* Pop the status stack. */
586 static netdev_tx_t
el3_start_xmit(struct sk_buff
*skb
,
587 struct net_device
*dev
)
589 unsigned int ioaddr
= dev
->base_addr
;
590 struct el3_private
*priv
= netdev_priv(dev
);
593 netdev_dbg(dev
, "el3_start_xmit(length = %ld) called, status %4.4x.\n",
594 (long)skb
->len
, inw(ioaddr
+ EL3_STATUS
));
596 spin_lock_irqsave(&priv
->lock
, flags
);
598 dev
->stats
.tx_bytes
+= skb
->len
;
600 /* Put out the doubleword header... */
601 outw(skb
->len
, ioaddr
+ TX_FIFO
);
602 outw(0x00, ioaddr
+ TX_FIFO
);
603 /* ... and the packet rounded to a doubleword. */
604 outsl(ioaddr
+ TX_FIFO
, skb
->data
, (skb
->len
+ 3) >> 2);
606 if (inw(ioaddr
+ TX_FREE
) <= 1536) {
607 netif_stop_queue(dev
);
608 /* Interrupt us when the FIFO has room for max-sized packet. */
609 outw(SetTxThreshold
+ 1536, ioaddr
+ EL3_CMD
);
613 spin_unlock_irqrestore(&priv
->lock
, flags
);
619 /* The EL3 interrupt handler. */
620 static irqreturn_t
el3_interrupt(int irq
, void *dev_id
)
622 struct net_device
*dev
= (struct net_device
*) dev_id
;
623 struct el3_private
*lp
= netdev_priv(dev
);
626 int i
= 0, handled
= 1;
628 if (!netif_device_present(dev
))
631 ioaddr
= dev
->base_addr
;
633 netdev_dbg(dev
, "interrupt, status %4.4x.\n", inw(ioaddr
+ EL3_STATUS
));
635 spin_lock(&lp
->lock
);
636 while ((status
= inw(ioaddr
+ EL3_STATUS
)) &
637 (IntLatch
| RxComplete
| StatsFull
)) {
638 if ((status
& 0xe000) != 0x2000) {
639 netdev_dbg(dev
, "interrupt from dead card\n");
643 if (status
& RxComplete
)
645 if (status
& TxAvailable
) {
646 netdev_dbg(dev
, " TX room bit was handled.\n");
647 /* There's room in the FIFO for a full-sized packet. */
648 outw(AckIntr
| TxAvailable
, ioaddr
+ EL3_CMD
);
649 netif_wake_queue(dev
);
651 if (status
& TxComplete
)
653 if (status
& (AdapterFailure
| RxEarly
| StatsFull
)) {
654 /* Handle all uncommon interrupts. */
655 if (status
& StatsFull
) /* Empty statistics. */
657 if (status
& RxEarly
) { /* Rx early is unused. */
659 outw(AckIntr
| RxEarly
, ioaddr
+ EL3_CMD
);
661 if (status
& AdapterFailure
) {
664 fifo_diag
= inw(ioaddr
+ 4);
666 netdev_warn(dev
, "adapter failure, FIFO diagnostic register %04x.\n",
668 if (fifo_diag
& 0x0400) {
670 tc589_wait_for_completion(dev
, TxReset
);
671 outw(TxEnable
, ioaddr
+ EL3_CMD
);
673 if (fifo_diag
& 0x2000) {
675 tc589_wait_for_completion(dev
, RxReset
);
677 outw(RxEnable
, ioaddr
+ EL3_CMD
);
679 outw(AckIntr
| AdapterFailure
, ioaddr
+ EL3_CMD
);
683 netdev_err(dev
, "infinite loop in interrupt, status %4.4x.\n",
685 /* Clear all interrupts */
686 outw(AckIntr
| 0xFF, ioaddr
+ EL3_CMD
);
689 /* Acknowledge the IRQ. */
690 outw(AckIntr
| IntReq
| IntLatch
, ioaddr
+ EL3_CMD
);
692 lp
->last_irq
= jiffies
;
693 spin_unlock(&lp
->lock
);
694 netdev_dbg(dev
, "exiting interrupt, status %4.4x.\n",
695 inw(ioaddr
+ EL3_STATUS
));
696 return IRQ_RETVAL(handled
);
699 static void media_check(unsigned long arg
)
701 struct net_device
*dev
= (struct net_device
*)(arg
);
702 struct el3_private
*lp
= netdev_priv(dev
);
703 unsigned int ioaddr
= dev
->base_addr
;
707 if (!netif_device_present(dev
)) goto reschedule
;
709 /* Check for pending interrupt with expired latency timer: with
710 this, we can limp along even if the interrupt is blocked */
711 if ((inw(ioaddr
+ EL3_STATUS
) & IntLatch
) &&
712 (inb(ioaddr
+ EL3_TIMER
) == 0xff)) {
714 netdev_warn(dev
, "interrupt(s) dropped!\n");
716 local_irq_save(flags
);
717 el3_interrupt(dev
->irq
, dev
);
718 local_irq_restore(flags
);
724 lp
->media
.expires
= jiffies
+ HZ
/100;
725 add_timer(&lp
->media
);
729 /* lp->lock guards the EL3 window. Window should always be 1 except
730 when the lock is held */
731 spin_lock_irqsave(&lp
->lock
, flags
);
733 media
= inw(ioaddr
+WN4_MEDIA
) & 0xc810;
735 /* Ignore collisions unless we've had no irq's recently */
736 if (time_before(jiffies
, lp
->last_irq
+ HZ
)) {
739 /* Try harder to detect carrier errors */
741 outw(StatsDisable
, ioaddr
+ EL3_CMD
);
742 errs
= inb(ioaddr
+ 0);
743 outw(StatsEnable
, ioaddr
+ EL3_CMD
);
744 dev
->stats
.tx_carrier_errors
+= errs
;
745 if (errs
|| (lp
->media_status
& 0x0010)) media
|= 0x0010;
748 if (media
!= lp
->media_status
) {
749 if ((media
& lp
->media_status
& 0x8000) &&
750 ((lp
->media_status
^ media
) & 0x0800))
751 netdev_info(dev
, "%s link beat\n",
752 (lp
->media_status
& 0x0800 ? "lost" : "found"));
753 else if ((media
& lp
->media_status
& 0x4000) &&
754 ((lp
->media_status
^ media
) & 0x0010))
755 netdev_info(dev
, "coax cable %s\n",
756 (lp
->media_status
& 0x0010 ? "ok" : "problem"));
757 if (dev
->if_port
== 0) {
758 if (media
& 0x8000) {
760 netdev_info(dev
, "flipped to 10baseT\n");
762 tc589_set_xcvr(dev
, 2);
763 } else if (media
& 0x4000) {
765 tc589_set_xcvr(dev
, 1);
767 netdev_info(dev
, "flipped to 10base2\n");
770 lp
->media_status
= media
;
774 spin_unlock_irqrestore(&lp
->lock
, flags
);
777 lp
->media
.expires
= jiffies
+ HZ
;
778 add_timer(&lp
->media
);
781 static struct net_device_stats
*el3_get_stats(struct net_device
*dev
)
783 struct el3_private
*lp
= netdev_priv(dev
);
785 struct pcmcia_device
*link
= lp
->p_dev
;
787 if (pcmcia_dev_present(link
)) {
788 spin_lock_irqsave(&lp
->lock
, flags
);
790 spin_unlock_irqrestore(&lp
->lock
, flags
);
796 Update statistics. We change to register window 6, so this should be run
797 single-threaded if the device is active. This is expected to be a rare
798 operation, and it's simpler for the rest of the driver to assume that
799 window 1 is always valid rather than use a special window-state variable.
801 Caller must hold the lock for this
803 static void update_stats(struct net_device
*dev
)
805 unsigned int ioaddr
= dev
->base_addr
;
807 netdev_dbg(dev
, "updating the statistics.\n");
808 /* Turn off statistics updates while reading. */
809 outw(StatsDisable
, ioaddr
+ EL3_CMD
);
810 /* Switch to the stats window, and read everything. */
812 dev
->stats
.tx_carrier_errors
+= inb(ioaddr
+ 0);
813 dev
->stats
.tx_heartbeat_errors
+= inb(ioaddr
+ 1);
814 /* Multiple collisions. */ inb(ioaddr
+ 2);
815 dev
->stats
.collisions
+= inb(ioaddr
+ 3);
816 dev
->stats
.tx_window_errors
+= inb(ioaddr
+ 4);
817 dev
->stats
.rx_fifo_errors
+= inb(ioaddr
+ 5);
818 dev
->stats
.tx_packets
+= inb(ioaddr
+ 6);
819 /* Rx packets */ inb(ioaddr
+ 7);
820 /* Tx deferrals */ inb(ioaddr
+ 8);
821 /* Rx octets */ inw(ioaddr
+ 10);
822 /* Tx octets */ inw(ioaddr
+ 12);
824 /* Back to window 1, and turn statistics back on. */
826 outw(StatsEnable
, ioaddr
+ EL3_CMD
);
829 static int el3_rx(struct net_device
*dev
)
831 unsigned int ioaddr
= dev
->base_addr
;
835 netdev_dbg(dev
, "in rx_packet(), status %4.4x, rx_status %4.4x.\n",
836 inw(ioaddr
+EL3_STATUS
), inw(ioaddr
+RX_STATUS
));
837 while (!((rx_status
= inw(ioaddr
+ RX_STATUS
)) & 0x8000) &&
840 if (rx_status
& 0x4000) { /* Error, update stats. */
841 short error
= rx_status
& 0x3800;
842 dev
->stats
.rx_errors
++;
844 case 0x0000: dev
->stats
.rx_over_errors
++; break;
845 case 0x0800: dev
->stats
.rx_length_errors
++; break;
846 case 0x1000: dev
->stats
.rx_frame_errors
++; break;
847 case 0x1800: dev
->stats
.rx_length_errors
++; break;
848 case 0x2000: dev
->stats
.rx_frame_errors
++; break;
849 case 0x2800: dev
->stats
.rx_crc_errors
++; break;
852 short pkt_len
= rx_status
& 0x7ff;
855 skb
= dev_alloc_skb(pkt_len
+5);
857 netdev_dbg(dev
, " Receiving packet size %d status %4.4x.\n",
861 insl(ioaddr
+RX_FIFO
, skb_put(skb
, pkt_len
),
863 skb
->protocol
= eth_type_trans(skb
, dev
);
865 dev
->stats
.rx_packets
++;
866 dev
->stats
.rx_bytes
+= pkt_len
;
868 netdev_dbg(dev
, "couldn't allocate a sk_buff of size %d.\n",
870 dev
->stats
.rx_dropped
++;
873 /* Pop the top of the Rx FIFO */
874 tc589_wait_for_completion(dev
, RxDiscard
);
877 netdev_warn(dev
, "too much work in el3_rx!\n");
881 static void set_rx_mode(struct net_device
*dev
)
883 unsigned int ioaddr
= dev
->base_addr
;
884 u16 opts
= SetRxFilter
| RxStation
| RxBroadcast
;
886 if (dev
->flags
& IFF_PROMISC
)
887 opts
|= RxMulticast
| RxProm
;
888 else if (!netdev_mc_empty(dev
) || (dev
->flags
& IFF_ALLMULTI
))
890 outw(opts
, ioaddr
+ EL3_CMD
);
893 static void set_multicast_list(struct net_device
*dev
)
895 struct el3_private
*priv
= netdev_priv(dev
);
898 spin_lock_irqsave(&priv
->lock
, flags
);
900 spin_unlock_irqrestore(&priv
->lock
, flags
);
903 static int el3_close(struct net_device
*dev
)
905 struct el3_private
*lp
= netdev_priv(dev
);
906 struct pcmcia_device
*link
= lp
->p_dev
;
907 unsigned int ioaddr
= dev
->base_addr
;
909 dev_dbg(&link
->dev
, "%s: shutting down ethercard.\n", dev
->name
);
911 if (pcmcia_dev_present(link
)) {
912 /* Turn off statistics ASAP. We update dev->stats below. */
913 outw(StatsDisable
, ioaddr
+ EL3_CMD
);
915 /* Disable the receiver and transmitter. */
916 outw(RxDisable
, ioaddr
+ EL3_CMD
);
917 outw(TxDisable
, ioaddr
+ EL3_CMD
);
919 if (dev
->if_port
== 2)
920 /* Turn off thinnet power. Green! */
921 outw(StopCoax
, ioaddr
+ EL3_CMD
);
922 else if (dev
->if_port
== 1) {
923 /* Disable link beat and jabber */
925 outw(0, ioaddr
+ WN4_MEDIA
);
928 /* Switching back to window 0 disables the IRQ. */
930 /* But we explicitly zero the IRQ line select anyway. */
931 outw(0x0f00, ioaddr
+ WN0_IRQ
);
933 /* Check if the card still exists */
934 if ((inw(ioaddr
+EL3_STATUS
) & 0xe000) == 0x2000)
939 netif_stop_queue(dev
);
940 del_timer_sync(&lp
->media
);
945 static struct pcmcia_device_id tc589_ids
[] = {
946 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
947 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
948 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
949 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
950 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
951 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
954 MODULE_DEVICE_TABLE(pcmcia
, tc589_ids
);
956 static struct pcmcia_driver tc589_driver
= {
957 .owner
= THIS_MODULE
,
961 .probe
= tc589_probe
,
962 .remove
= tc589_detach
,
963 .id_table
= tc589_ids
,
964 .suspend
= tc589_suspend
,
965 .resume
= tc589_resume
,
968 static int __init
init_tc589(void)
970 return pcmcia_register_driver(&tc589_driver
);
973 static void __exit
exit_tc589(void)
975 pcmcia_unregister_driver(&tc589_driver
);
978 module_init(init_tc589
);
979 module_exit(exit_tc589
);