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drivers/net: const-ify ethtool_ops declarations
[net-next-2.6.git] / drivers / net / pcmcia / 3c574_cs.c
CommitLineData
1da177e4
LT		 1/* 3c574.c: A PCMCIA ethernet driver for the 3com 3c574 "RoadRunner".
2
3 Written 1993-1998 by
4 Donald Becker, becker@scyld.com, (driver core) and
5 David Hinds, dahinds@users.sourceforge.net (from his PC card code).
6 Locking fixes (C) Copyright 2003 Red Hat Inc
7
8 This software may be used and distributed according to the terms of
9 the GNU General Public License, incorporated herein by reference.
10
11 This driver derives from Donald Becker's 3c509 core, which has the
12 following copyright:
13 Copyright 1993 United States Government as represented by the
14 Director, National Security Agency.
15
16
17*/
18
19/*
20 Theory of Operation
21
22I. Board Compatibility
23
24This device driver is designed for the 3Com 3c574 PC card Fast Ethernet
25Adapter.
26
27II. Board-specific settings
28
29None -- PC cards are autoconfigured.
30
31III. Driver operation
32
33The 3c574 uses a Boomerang-style interface, without the bus-master capability.
34See the Boomerang driver and documentation for most details.
35
36IV. Notes and chip documentation.
37
38Two added registers are used to enhance PIO performance, RunnerRdCtrl and
39RunnerWrCtrl. These are 11 bit down-counters that are preloaded with the
40count of word (16 bits) reads or writes the driver is about to do to the Rx
41or Tx FIFO. The chip is then able to hide the internal-PCI-bus to PC-card
42translation latency by buffering the I/O operations with an 8 word FIFO.
43Note: No other chip accesses are permitted when this buffer is used.
44
45A second enhancement is that both attribute and common memory space
460x0800-0x0fff can translated to the PIO FIFO. Thus memory operations (faster
47with *some* PCcard bridges) may be used instead of I/O operations.
48This is enabled by setting the 0x10 bit in the PCMCIA LAN COR.
49
50Some slow PC card bridges work better if they never see a WAIT signal.
51This is configured by setting the 0x20 bit in the PCMCIA LAN COR.
52Only do this after testing that it is reliable and improves performance.
53
54The upper five bits of RunnerRdCtrl are used to window into PCcard
55configuration space registers. Window 0 is the regular Boomerang/Odie
56register set, 1-5 are various PC card control registers, and 16-31 are
57the (reversed!) CIS table.
58
59A final note: writing the InternalConfig register in window 3 with an
60invalid ramWidth is Very Bad.
61
62V. References
63
64http://www.scyld.com/expert/NWay.html
65http://www.national.com/pf/DP/DP83840.html
66
67Thanks to Terry Murphy of 3Com for providing development information for
68earlier 3Com products.
69
70*/
71
72#include <linux/module.h>
73#include <linux/kernel.h>
74#include <linux/init.h>
75#include <linux/slab.h>
76#include <linux/string.h>
77#include <linux/timer.h>
78#include <linux/interrupt.h>
79#include <linux/in.h>
80#include <linux/delay.h>
81#include <linux/netdevice.h>
82#include <linux/etherdevice.h>
83#include <linux/skbuff.h>
84#include <linux/if_arp.h>
85#include <linux/ioport.h>
86#include <linux/ethtool.h>
87#include <linux/bitops.h>
88
1da177e4
LT		 89#include <pcmcia/cs_types.h>
90#include <pcmcia/cs.h>
91#include <pcmcia/cistpl.h>
92#include <pcmcia/cisreg.h>
93#include <pcmcia/ciscode.h>
94#include <pcmcia/ds.h>
95#include <pcmcia/mem_op.h>
96
97#include <asm/uaccess.h>
98#include <asm/io.h>
99#include <asm/system.h>
100
101/*====================================================================*/
102
103/* Module parameters */
104
105MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
106MODULE_DESCRIPTION("3Com 3c574 series PCMCIA ethernet driver");
107MODULE_LICENSE("GPL");
108
109#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
110
111/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
112INT_MODULE_PARM(max_interrupt_work, 32);
113
114/* Force full duplex modes? */
115INT_MODULE_PARM(full_duplex, 0);
116
117/* Autodetect link polarity reversal? */
118INT_MODULE_PARM(auto_polarity, 1);
119
120#ifdef PCMCIA_DEBUG
121INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
122#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
123static char *version =
124"3c574_cs.c 1.65ac1 2003/04/07 Donald Becker/David Hinds, becker@scyld.com.\n";
125#else
126#define DEBUG(n, args...)
127#endif
128
129/*====================================================================*/
130
131/* Time in jiffies before concluding the transmitter is hung. */
132#define TX_TIMEOUT ((800*HZ)/1000)
133
134/* To minimize the size of the driver source and make the driver more
135 readable not all constants are symbolically defined.
136 You'll need the manual if you want to understand driver details anyway. */
137/* Offsets from base I/O address. */
138#define EL3_DATA 0x00
139#define EL3_CMD 0x0e
140#define EL3_STATUS 0x0e
141
142#define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
143
144/* The top five bits written to EL3_CMD are a command, the lower
145 11 bits are the parameter, if applicable. */
146enum el3_cmds {
147 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
148 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11,
149 TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
150 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
151 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
152 SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11,
153 StatsDisable = 22<<11, StopCoax = 23<<11,
154};
155
156enum elxl_status {
157 IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
158 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
159 IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000 };
160
161/* The SetRxFilter command accepts the following classes: */
162enum RxFilter {
163 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8
164};
165
166enum Window0 {
167 Wn0EepromCmd = 10, Wn0EepromData = 12, /* EEPROM command/address, data. */
168 IntrStatus=0x0E, /* Valid in all windows. */
169};
170/* These assumes the larger EEPROM. */
171enum Win0_EEPROM_cmds {
172 EEPROM_Read = 0x200, EEPROM_WRITE = 0x100, EEPROM_ERASE = 0x300,
173 EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
174 EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
175};
176
177/* Register window 1 offsets, the window used in normal operation.
178 On the "Odie" this window is always mapped at offsets 0x10-0x1f.
179 Except for TxFree, which is overlapped by RunnerWrCtrl. */
180enum Window1 {
181 TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
182 RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B,
183 TxFree = 0x0C, /* Remaining free bytes in Tx buffer. */
184 RunnerRdCtrl = 0x16, RunnerWrCtrl = 0x1c,
185};
186
187enum Window3 { /* Window 3: MAC/config bits. */
188 Wn3_Config=0, Wn3_MAC_Ctrl=6, Wn3_Options=8,
189};
190union wn3_config {
191 int i;
192 struct w3_config_fields {
193 unsigned int ram_size:3, ram_width:1, ram_speed:2, rom_size:2;
194 int pad8:8;
195 unsigned int ram_split:2, pad18:2, xcvr:3, pad21:1, autoselect:1;
196 int pad24:7;
197 } u;
198};
199
200enum Window4 { /* Window 4: Xcvr/media bits. */
201 Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10,
202};
203
204#define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
205
206struct el3_private {
fd238232 207 struct pcmcia_device *p_dev;
1da177e4
LT		 208 dev_node_t node;
209 struct net_device_stats stats;
210 u16 advertising, partner; /* NWay media advertisement */
211 unsigned char phys; /* MII device address */
212 unsigned int autoselect:1, default_media:3; /* Read from the EEPROM/Wn3_Config. */
213 /* for transceiver monitoring */
214 struct timer_list media;
215 unsigned short media_status;
216 unsigned short fast_poll;
217 unsigned long last_irq;
218 spinlock_t window_lock; /* Guards the Window selection */
219};
220
221/* Set iff a MII transceiver on any interface requires mdio preamble.
222 This only set with the original DP83840 on older 3c905 boards, so the extra
223 code size of a per-interface flag is not worthwhile. */
224static char mii_preamble_required = 0;
225
226/* Index of functions. */
227
15b99ac1 228static int tc574_config(struct pcmcia_device *link);
fba395ee 229static void tc574_release(struct pcmcia_device *link);
1da177e4
LT		 230
231static void mdio_sync(kio_addr_t ioaddr, int bits);
232static int mdio_read(kio_addr_t ioaddr, int phy_id, int location);
233static void mdio_write(kio_addr_t ioaddr, int phy_id, int location, int value);
234static unsigned short read_eeprom(kio_addr_t ioaddr, int index);
235static void tc574_wait_for_completion(struct net_device *dev, int cmd);
236
237static void tc574_reset(struct net_device *dev);
238static void media_check(unsigned long arg);
239static int el3_open(struct net_device *dev);
240static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev);
241static irqreturn_t el3_interrupt(int irq, void *dev_id, struct pt_regs *regs);
242static void update_stats(struct net_device *dev);
243static struct net_device_stats *el3_get_stats(struct net_device *dev);
244static int el3_rx(struct net_device *dev, int worklimit);
245static int el3_close(struct net_device *dev);
246static void el3_tx_timeout(struct net_device *dev);
247static int el3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
7282d491 248static const struct ethtool_ops netdev_ethtool_ops;
1da177e4
LT		 249static void set_rx_mode(struct net_device *dev);
250
cc3b4866 251static void tc574_detach(struct pcmcia_device *p_dev);
1da177e4 252
1da177e4
LT		 253/*
254 tc574_attach() creates an "instance" of the driver, allocating
255 local data structures for one device. The device is registered
256 with Card Services.
257*/
258
15b99ac1 259static int tc574_probe(struct pcmcia_device *link)
1da177e4
LT		 260{
261 struct el3_private *lp;
1da177e4 262 struct net_device *dev;
1da177e4
LT		 263
264 DEBUG(0, "3c574_attach()\n");
265
266 /* Create the PC card device object. */
267 dev = alloc_etherdev(sizeof(struct el3_private));
268 if (!dev)
f8cfa618 269 return -ENOMEM;
1da177e4 270 lp = netdev_priv(dev);
1da177e4 271 link->priv = dev;
fba395ee 272 lp->p_dev = link;
1da177e4
LT		 273
274 spin_lock_init(&lp->window_lock);
275 link->io.NumPorts1 = 32;
276 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
277 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
278 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
279 link->irq.Handler = &el3_interrupt;
280 link->irq.Instance = dev;
281 link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4
LT		 282 link->conf.IntType = INT_MEMORY_AND_IO;
283 link->conf.ConfigIndex = 1;
284 link->conf.Present = PRESENT_OPTION;
285
286 /* The EL3-specific entries in the device structure. */
287 dev->hard_start_xmit = &el3_start_xmit;
288 dev->get_stats = &el3_get_stats;
289 dev->do_ioctl = &el3_ioctl;
290 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
291 dev->set_multicast_list = &set_rx_mode;
292 dev->open = &el3_open;
293 dev->stop = &el3_close;
294#ifdef HAVE_TX_TIMEOUT
295 dev->tx_timeout = el3_tx_timeout;
296 dev->watchdog_timeo = TX_TIMEOUT;
297#endif
298
15b99ac1 299 return tc574_config(link);
1da177e4
LT		 300} /* tc574_attach */
301
302/*
303
304 This deletes a driver "instance". The device is de-registered
305 with Card Services. If it has been released, all local data
306 structures are freed. Otherwise, the structures will be freed
307 when the device is released.
308
309*/
310
fba395ee 311static void tc574_detach(struct pcmcia_device *link)
1da177e4
LT		 312{
313 struct net_device *dev = link->priv;
1da177e4
LT		 314
315 DEBUG(0, "3c574_detach(0x%p)\n", link);
316
fd238232 317 if (link->dev_node)
1da177e4
LT		 318 unregister_netdev(dev);
319
e2d40963 320 tc574_release(link);
1da177e4 321
1da177e4
LT		 322 free_netdev(dev);
323} /* tc574_detach */
324
325/*
326 tc574_config() is scheduled to run after a CARD_INSERTION event
327 is received, to configure the PCMCIA socket, and to make the
328 ethernet device available to the system.
329*/
330
331#define CS_CHECK(fn, ret) \
332 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
333
f71e1309 334static const char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
1da177e4 335
15b99ac1 336static int tc574_config(struct pcmcia_device *link)
1da177e4 337{
1da177e4
LT		 338 struct net_device *dev = link->priv;
339 struct el3_private *lp = netdev_priv(dev);
340 tuple_t tuple;
341 cisparse_t parse;
342 unsigned short buf[32];
343 int last_fn, last_ret, i, j;
344 kio_addr_t ioaddr;
345 u16 *phys_addr;
346 char *cardname;
347 union wn3_config config;
348
349 phys_addr = (u16 *)dev->dev_addr;
350
351 DEBUG(0, "3c574_config(0x%p)\n", link);
352
353 tuple.Attributes = 0;
354 tuple.DesiredTuple = CISTPL_CONFIG;
fba395ee 355 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
1da177e4
LT		 356 tuple.TupleData = (cisdata_t *)buf;
357 tuple.TupleDataMax = 64;
358 tuple.TupleOffset = 0;
fba395ee
DB		 359 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
360 CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
1da177e4
LT		 361 link->conf.ConfigBase = parse.config.base;
362 link->conf.Present = parse.config.rmask[0];
363
1da177e4
LT		 364 link->io.IOAddrLines = 16;
365 for (i = j = 0; j < 0x400; j += 0x20) {
366 link->io.BasePort1 = j ^ 0x300;
fba395ee 367 i = pcmcia_request_io(link, &link->io);
1da177e4
LT		 368 if (i == CS_SUCCESS) break;
369 }
370 if (i != CS_SUCCESS) {
fba395ee 371 cs_error(link, RequestIO, i);
1da177e4
LT		 372 goto failed;
373 }
fba395ee
DB		 374 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
375 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1da177e4
LT		 376
377 dev->irq = link->irq.AssignedIRQ;
378 dev->base_addr = link->io.BasePort1;
379
380 ioaddr = dev->base_addr;
381
382 /* The 3c574 normally uses an EEPROM for configuration info, including
383 the hardware address. The future products may include a modem chip
384 and put the address in the CIS. */
385 tuple.DesiredTuple = 0x88;
fba395ee
DB		 386 if (pcmcia_get_first_tuple(link, &tuple) == CS_SUCCESS) {
387 pcmcia_get_tuple_data(link, &tuple);
1da177e4
LT		 388 for (i = 0; i < 3; i++)
389 phys_addr[i] = htons(buf[i]);
390 } else {
391 EL3WINDOW(0);
392 for (i = 0; i < 3; i++)
393 phys_addr[i] = htons(read_eeprom(ioaddr, i + 10));
394 if (phys_addr[0] == 0x6060) {
395 printk(KERN_NOTICE "3c574_cs: IO port conflict at 0x%03lx"
396 "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
397 goto failed;
398 }
399 }
400 tuple.DesiredTuple = CISTPL_VERS_1;
fba395ee
DB		 401 if (pcmcia_get_first_tuple(link, &tuple) == CS_SUCCESS &&
402 pcmcia_get_tuple_data(link, &tuple) == CS_SUCCESS &&
403 pcmcia_parse_tuple(link, &tuple, &parse) == CS_SUCCESS) {
1da177e4
LT		 404 cardname = parse.version_1.str + parse.version_1.ofs[1];
405 } else
406 cardname = "3Com 3c574";
407
408 {
409 u_char mcr;
410 outw(2<<11, ioaddr + RunnerRdCtrl);
411 mcr = inb(ioaddr + 2);
412 outw(0<<11, ioaddr + RunnerRdCtrl);
413 printk(KERN_INFO " ASIC rev %d,", mcr>>3);
414 EL3WINDOW(3);
415 config.i = inl(ioaddr + Wn3_Config);
416 lp->default_media = config.u.xcvr;
417 lp->autoselect = config.u.autoselect;
418 }
419
420 init_timer(&lp->media);
421
422 {
423 int phy;
424
425 /* Roadrunner only: Turn on the MII transceiver */
426 outw(0x8040, ioaddr + Wn3_Options);
427 mdelay(1);
428 outw(0xc040, ioaddr + Wn3_Options);
429 tc574_wait_for_completion(dev, TxReset);
430 tc574_wait_for_completion(dev, RxReset);
431 mdelay(1);
432 outw(0x8040, ioaddr + Wn3_Options);
433
434 EL3WINDOW(4);
435 for (phy = 1; phy <= 32; phy++) {
436 int mii_status;
437 mdio_sync(ioaddr, 32);
438 mii_status = mdio_read(ioaddr, phy & 0x1f, 1);
439 if (mii_status != 0xffff) {
440 lp->phys = phy & 0x1f;
441 DEBUG(0, " MII transceiver at index %d, status %x.\n",
442 phy, mii_status);
443 if ((mii_status & 0x0040) == 0)
444 mii_preamble_required = 1;
445 break;
446 }
447 }
448 if (phy > 32) {
449 printk(KERN_NOTICE " No MII transceivers found!\n");
450 goto failed;
451 }
452 i = mdio_read(ioaddr, lp->phys, 16) | 0x40;
453 mdio_write(ioaddr, lp->phys, 16, i);
454 lp->advertising = mdio_read(ioaddr, lp->phys, 4);
455 if (full_duplex) {
456 /* Only advertise the FD media types. */
457 lp->advertising &= ~0x02a0;
458 mdio_write(ioaddr, lp->phys, 4, lp->advertising);
459 }
460 }
461
fd238232 462 link->dev_node = &lp->node;
fba395ee 463 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1da177e4
LT		 464
465 if (register_netdev(dev) != 0) {
466 printk(KERN_NOTICE "3c574_cs: register_netdev() failed\n");
fd238232 467 link->dev_node = NULL;
1da177e4
LT		 468 goto failed;
469 }
470
471 strcpy(lp->node.dev_name, dev->name);
472
473 printk(KERN_INFO "%s: %s at io %#3lx, irq %d, hw_addr ",
474 dev->name, cardname, dev->base_addr, dev->irq);
475 for (i = 0; i < 6; i++)
476 printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : ".\n"));
477 printk(" %dK FIFO split %s Rx:Tx, %sMII interface.\n",
478 8 << config.u.ram_size, ram_split[config.u.ram_split],
479 config.u.autoselect ? "autoselect " : "");
480
15b99ac1 481 return 0;
1da177e4
LT		 482
483cs_failed:
fba395ee 484 cs_error(link, last_fn, last_ret);
1da177e4
LT		 485failed:
486 tc574_release(link);
15b99ac1 487 return -ENODEV;
1da177e4
LT		 488
489} /* tc574_config */
490
491/*
492 After a card is removed, tc574_release() will unregister the net
493 device, and release the PCMCIA configuration. If the device is
494 still open, this will be postponed until it is closed.
495*/
496
fba395ee 497static void tc574_release(struct pcmcia_device *link)
1da177e4 498{
fba395ee 499 pcmcia_disable_device(link);
1da177e4
LT		 500}
501
fba395ee 502static int tc574_suspend(struct pcmcia_device *link)
98e4c28b 503{
98e4c28b
DB		 504 struct net_device *dev = link->priv;
505
e2d40963 506 if (link->open)
8661bb5b 507 netif_device_detach(dev);
98e4c28b
DB		 508
509 return 0;
510}
511
fba395ee 512static int tc574_resume(struct pcmcia_device *link)
98e4c28b 513{
98e4c28b
DB		 514 struct net_device *dev = link->priv;
515
e2d40963 516 if (link->open) {
8661bb5b
DB		 517 tc574_reset(dev);
518 netif_device_attach(dev);
98e4c28b
DB		 519 }
520
521 return 0;
522}
523
1da177e4
LT		 524static void dump_status(struct net_device *dev)
525{
526 kio_addr_t ioaddr = dev->base_addr;
527 EL3WINDOW(1);
528 printk(KERN_INFO " irq status %04x, rx status %04x, tx status "
529 "%02x, tx free %04x\n", inw(ioaddr+EL3_STATUS),
530 inw(ioaddr+RxStatus), inb(ioaddr+TxStatus),
531 inw(ioaddr+TxFree));
532 EL3WINDOW(4);
533 printk(KERN_INFO " diagnostics: fifo %04x net %04x ethernet %04x"
534 " media %04x\n", inw(ioaddr+0x04), inw(ioaddr+0x06),
535 inw(ioaddr+0x08), inw(ioaddr+0x0a));
536 EL3WINDOW(1);
537}
538
539/*
540 Use this for commands that may take time to finish
541*/
542static void tc574_wait_for_completion(struct net_device *dev, int cmd)
543{
544 int i = 1500;
545 outw(cmd, dev->base_addr + EL3_CMD);
546 while (--i > 0)
547 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
548 if (i == 0)
549 printk(KERN_NOTICE "%s: command 0x%04x did not complete!\n", dev->name, cmd);
550}
551
552/* Read a word from the EEPROM using the regular EEPROM access register.
553 Assume that we are in register window zero.
554 */
555static unsigned short read_eeprom(kio_addr_t ioaddr, int index)
556{
557 int timer;
558 outw(EEPROM_Read + index, ioaddr + Wn0EepromCmd);
559 /* Pause for at least 162 usec for the read to take place. */
560 for (timer = 1620; timer >= 0; timer--) {
561 if ((inw(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
562 break;
563 }
564 return inw(ioaddr + Wn0EepromData);
565}
566
567/* MII transceiver control section.
568 Read and write the MII registers using software-generated serial
569 MDIO protocol. See the MII specifications or DP83840A data sheet
570 for details.
571 The maxium data clock rate is 2.5 Mhz. The timing is easily met by the
572 slow PC card interface. */
573
574#define MDIO_SHIFT_CLK 0x01
575#define MDIO_DIR_WRITE 0x04
576#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
577#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
578#define MDIO_DATA_READ 0x02
579#define MDIO_ENB_IN 0x00
580
581/* Generate the preamble required for initial synchronization and
582 a few older transceivers. */
583static void mdio_sync(kio_addr_t ioaddr, int bits)
584{
585 kio_addr_t mdio_addr = ioaddr + Wn4_PhysicalMgmt;
586
587 /* Establish sync by sending at least 32 logic ones. */
588 while (-- bits >= 0) {
589 outw(MDIO_DATA_WRITE1, mdio_addr);
590 outw(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
591 }
592}
593
594static int mdio_read(kio_addr_t ioaddr, int phy_id, int location)
595{
596 int i;
597 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
598 unsigned int retval = 0;
599 kio_addr_t mdio_addr = ioaddr + Wn4_PhysicalMgmt;
600
601 if (mii_preamble_required)
602 mdio_sync(ioaddr, 32);
603
604 /* Shift the read command bits out. */
605 for (i = 14; i >= 0; i--) {
606 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
607 outw(dataval, mdio_addr);
608 outw(dataval | MDIO_SHIFT_CLK, mdio_addr);
609 }
610 /* Read the two transition, 16 data, and wire-idle bits. */
611 for (i = 19; i > 0; i--) {
612 outw(MDIO_ENB_IN, mdio_addr);
613 retval = (retval << 1) | ((inw(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
614 outw(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
615 }
616 return (retval>>1) & 0xffff;
617}
618
619static void mdio_write(kio_addr_t ioaddr, int phy_id, int location, int value)
620{
621 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
622 kio_addr_t mdio_addr = ioaddr + Wn4_PhysicalMgmt;
623 int i;
624
625 if (mii_preamble_required)
626 mdio_sync(ioaddr, 32);
627
628 /* Shift the command bits out. */
629 for (i = 31; i >= 0; i--) {
630 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
631 outw(dataval, mdio_addr);
632 outw(dataval | MDIO_SHIFT_CLK, mdio_addr);
633 }
634 /* Leave the interface idle. */
635 for (i = 1; i >= 0; i--) {
636 outw(MDIO_ENB_IN, mdio_addr);
637 outw(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
638 }
639
640 return;
641}
642
643/* Reset and restore all of the 3c574 registers. */
644static void tc574_reset(struct net_device *dev)
645{
646 struct el3_private *lp = netdev_priv(dev);
647 int i;
648 kio_addr_t ioaddr = dev->base_addr;
649 unsigned long flags;
650
651 tc574_wait_for_completion(dev, TotalReset|0x10);
652
653 spin_lock_irqsave(&lp->window_lock, flags);
654 /* Clear any transactions in progress. */
655 outw(0, ioaddr + RunnerWrCtrl);
656 outw(0, ioaddr + RunnerRdCtrl);
657
658 /* Set the station address and mask. */
659 EL3WINDOW(2);
660 for (i = 0; i < 6; i++)
661 outb(dev->dev_addr[i], ioaddr + i);
662 for (; i < 12; i+=2)
663 outw(0, ioaddr + i);
664
665 /* Reset config options */
666 EL3WINDOW(3);
667 outb((dev->mtu > 1500 ? 0x40 : 0), ioaddr + Wn3_MAC_Ctrl);
668 outl((lp->autoselect ? 0x01000000 : 0) | 0x0062001b,
669 ioaddr + Wn3_Config);
670 /* Roadrunner only: Turn on the MII transceiver. */
671 outw(0x8040, ioaddr + Wn3_Options);
672 mdelay(1);
673 outw(0xc040, ioaddr + Wn3_Options);
674 EL3WINDOW(1);
675 spin_unlock_irqrestore(&lp->window_lock, flags);
676
677 tc574_wait_for_completion(dev, TxReset);
678 tc574_wait_for_completion(dev, RxReset);
679 mdelay(1);
680 spin_lock_irqsave(&lp->window_lock, flags);
681 EL3WINDOW(3);
682 outw(0x8040, ioaddr + Wn3_Options);
683
684 /* Switch to the stats window, and clear all stats by reading. */
685 outw(StatsDisable, ioaddr + EL3_CMD);
686 EL3WINDOW(6);
687 for (i = 0; i < 10; i++)
688 inb(ioaddr + i);
689 inw(ioaddr + 10);
690 inw(ioaddr + 12);
691 EL3WINDOW(4);
692 inb(ioaddr + 12);
693 inb(ioaddr + 13);
694
695 /* .. enable any extra statistics bits.. */
696 outw(0x0040, ioaddr + Wn4_NetDiag);
697
698 EL3WINDOW(1);
699 spin_unlock_irqrestore(&lp->window_lock, flags);
700
701 /* .. re-sync MII and re-fill what NWay is advertising. */
702 mdio_sync(ioaddr, 32);
703 mdio_write(ioaddr, lp->phys, 4, lp->advertising);
704 if (!auto_polarity) {
705 /* works for TDK 78Q2120 series MII's */
706 int i = mdio_read(ioaddr, lp->phys, 16) | 0x20;
707 mdio_write(ioaddr, lp->phys, 16, i);
708 }
709
710 spin_lock_irqsave(&lp->window_lock, flags);
711 /* Switch to register set 1 for normal use, just for TxFree. */
712 set_rx_mode(dev);
713 spin_unlock_irqrestore(&lp->window_lock, flags);
714 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
715 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
716 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
717 /* Allow status bits to be seen. */
718 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
719 /* Ack all pending events, and set active indicator mask. */
720 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
721 ioaddr + EL3_CMD);
722 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
723 | AdapterFailure | RxEarly, ioaddr + EL3_CMD);
724}
725
726static int el3_open(struct net_device *dev)
727{
728 struct el3_private *lp = netdev_priv(dev);
fba395ee 729 struct pcmcia_device *link = lp->p_dev;
1da177e4 730
9940ec36 731 if (!pcmcia_dev_present(link))
1da177e4
LT		 732 return -ENODEV;
733
734 link->open++;
735 netif_start_queue(dev);
736
737 tc574_reset(dev);
738 lp->media.function = &media_check;
739 lp->media.data = (unsigned long) dev;
740 lp->media.expires = jiffies + HZ;
741 add_timer(&lp->media);
742
743 DEBUG(2, "%s: opened, status %4.4x.\n",
744 dev->name, inw(dev->base_addr + EL3_STATUS));
745
746 return 0;
747}
748
749static void el3_tx_timeout(struct net_device *dev)
750{
751 struct el3_private *lp = netdev_priv(dev);
752 kio_addr_t ioaddr = dev->base_addr;
753
754 printk(KERN_NOTICE "%s: Transmit timed out!\n", dev->name);
755 dump_status(dev);
756 lp->stats.tx_errors++;
757 dev->trans_start = jiffies;
758 /* Issue TX_RESET and TX_START commands. */
759 tc574_wait_for_completion(dev, TxReset);
760 outw(TxEnable, ioaddr + EL3_CMD);
761 netif_wake_queue(dev);
762}
763
764static void pop_tx_status(struct net_device *dev)
765{
766 struct el3_private *lp = netdev_priv(dev);
767 kio_addr_t ioaddr = dev->base_addr;
768 int i;
769
770 /* Clear the Tx status stack. */
771 for (i = 32; i > 0; i--) {
772 u_char tx_status = inb(ioaddr + TxStatus);
773 if (!(tx_status & 0x84))
774 break;
775 /* reset transmitter on jabber error or underrun */
776 if (tx_status & 0x30)
777 tc574_wait_for_completion(dev, TxReset);
778 if (tx_status & 0x38) {
779 DEBUG(1, "%s: transmit error: status 0x%02x\n",
780 dev->name, tx_status);
781 outw(TxEnable, ioaddr + EL3_CMD);
782 lp->stats.tx_aborted_errors++;
783 }
784 outb(0x00, ioaddr + TxStatus); /* Pop the status stack. */
785 }
786}
787
788static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
789{
790 kio_addr_t ioaddr = dev->base_addr;
791 struct el3_private *lp = netdev_priv(dev);
792 unsigned long flags;
793
794 DEBUG(3, "%s: el3_start_xmit(length = %ld) called, "
795 "status %4.4x.\n", dev->name, (long)skb->len,
796 inw(ioaddr + EL3_STATUS));
797
798 spin_lock_irqsave(&lp->window_lock, flags);
799 outw(skb->len, ioaddr + TX_FIFO);
800 outw(0, ioaddr + TX_FIFO);
801 outsl(ioaddr + TX_FIFO, skb->data, (skb->len+3)>>2);
802
803 dev->trans_start = jiffies;
804
805 /* TxFree appears only in Window 1, not offset 0x1c. */
806 if (inw(ioaddr + TxFree) <= 1536) {
807 netif_stop_queue(dev);
808 /* Interrupt us when the FIFO has room for max-sized packet.
809 The threshold is in units of dwords. */
810 outw(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
811 }
812
813 pop_tx_status(dev);
814 spin_unlock_irqrestore(&lp->window_lock, flags);
815 dev_kfree_skb(skb);
816 return 0;
817}
818
819/* The EL3 interrupt handler. */
820static irqreturn_t el3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
821{
822 struct net_device *dev = (struct net_device *) dev_id;
823 struct el3_private *lp = netdev_priv(dev);
824 kio_addr_t ioaddr;
825 unsigned status;
826 int work_budget = max_interrupt_work;
827 int handled = 0;
828
829 if (!netif_device_present(dev))
830 return IRQ_NONE;
831 ioaddr = dev->base_addr;
832
833 DEBUG(3, "%s: interrupt, status %4.4x.\n",
834 dev->name, inw(ioaddr + EL3_STATUS));
835
836 spin_lock(&lp->window_lock);
837
838 while ((status = inw(ioaddr + EL3_STATUS)) &
839 (IntLatch | RxComplete | RxEarly | StatsFull)) {
840 if (!netif_device_present(dev) ||
841 ((status & 0xe000) != 0x2000)) {
842 DEBUG(1, "%s: Interrupt from dead card\n", dev->name);
843 break;
844 }
845
846 handled = 1;
847
848 if (status & RxComplete)
849 work_budget = el3_rx(dev, work_budget);
850
851 if (status & TxAvailable) {
852 DEBUG(3, " TX room bit was handled.\n");
853 /* There's room in the FIFO for a full-sized packet. */
854 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
855 netif_wake_queue(dev);
856 }
857
858 if (status & TxComplete)
859 pop_tx_status(dev);
860
861 if (status & (AdapterFailure | RxEarly | StatsFull)) {
862 /* Handle all uncommon interrupts. */
863 if (status & StatsFull)
864 update_stats(dev);
865 if (status & RxEarly) {
866 work_budget = el3_rx(dev, work_budget);
867 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
868 }
869 if (status & AdapterFailure) {
870 u16 fifo_diag;
871 EL3WINDOW(4);
872 fifo_diag = inw(ioaddr + Wn4_FIFODiag);
873 EL3WINDOW(1);
874 printk(KERN_NOTICE "%s: adapter failure, FIFO diagnostic"
875 " register %04x.\n", dev->name, fifo_diag);
876 if (fifo_diag & 0x0400) {
877 /* Tx overrun */
878 tc574_wait_for_completion(dev, TxReset);
879 outw(TxEnable, ioaddr + EL3_CMD);
880 }
881 if (fifo_diag & 0x2000) {
882 /* Rx underrun */
883 tc574_wait_for_completion(dev, RxReset);
884 set_rx_mode(dev);
885 outw(RxEnable, ioaddr + EL3_CMD);
886 }
887 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
888 }
889 }
890
891 if (--work_budget < 0) {
892 DEBUG(0, "%s: Too much work in interrupt, "
893 "status %4.4x.\n", dev->name, status);
894 /* Clear all interrupts */
895 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
896 break;
897 }
898 /* Acknowledge the IRQ. */
899 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
900 }
901
902 DEBUG(3, "%s: exiting interrupt, status %4.4x.\n",
903 dev->name, inw(ioaddr + EL3_STATUS));
904
905 spin_unlock(&lp->window_lock);
906 return IRQ_RETVAL(handled);
907}
908
909/*
910 This timer serves two purposes: to check for missed interrupts
911 (and as a last resort, poll the NIC for events), and to monitor
912 the MII, reporting changes in cable status.
913*/
914static void media_check(unsigned long arg)
915{
916 struct net_device *dev = (struct net_device *) arg;
917 struct el3_private *lp = netdev_priv(dev);
918 kio_addr_t ioaddr = dev->base_addr;
919 unsigned long flags;
920 unsigned short /* cable, */ media, partner;
921
922 if (!netif_device_present(dev))
923 goto reschedule;
924
925 /* Check for pending interrupt with expired latency timer: with
926 this, we can limp along even if the interrupt is blocked */
927 if ((inw(ioaddr + EL3_STATUS) & IntLatch) && (inb(ioaddr + Timer) == 0xff)) {
928 if (!lp->fast_poll)
929 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
930 el3_interrupt(dev->irq, lp, NULL);
931 lp->fast_poll = HZ;
932 }
933 if (lp->fast_poll) {
934 lp->fast_poll--;
935 lp->media.expires = jiffies + 2*HZ/100;
936 add_timer(&lp->media);
937 return;
938 }
939
940 spin_lock_irqsave(&lp->window_lock, flags);
941 EL3WINDOW(4);
942 media = mdio_read(ioaddr, lp->phys, 1);
943 partner = mdio_read(ioaddr, lp->phys, 5);
944 EL3WINDOW(1);
945
946 if (media != lp->media_status) {
947 if ((media ^ lp->media_status) & 0x0004)
948 printk(KERN_INFO "%s: %s link beat\n", dev->name,
949 (lp->media_status & 0x0004) ? "lost" : "found");
950 if ((media ^ lp->media_status) & 0x0020) {
951 lp->partner = 0;
952 if (lp->media_status & 0x0020) {
953 printk(KERN_INFO "%s: autonegotiation restarted\n",
954 dev->name);
955 } else if (partner) {
956 partner &= lp->advertising;
957 lp->partner = partner;
958 printk(KERN_INFO "%s: autonegotiation complete: "
959 "%sbaseT-%cD selected\n", dev->name,
960 ((partner & 0x0180) ? "100" : "10"),
961 ((partner & 0x0140) ? 'F' : 'H'));
962 } else {
963 printk(KERN_INFO "%s: link partner did not autonegotiate\n",
964 dev->name);
965 }
966
967 EL3WINDOW(3);
968 outb((partner & 0x0140 ? 0x20 : 0) |
969 (dev->mtu > 1500 ? 0x40 : 0), ioaddr + Wn3_MAC_Ctrl);
970 EL3WINDOW(1);
971
972 }
973 if (media & 0x0010)
974 printk(KERN_INFO "%s: remote fault detected\n",
975 dev->name);
976 if (media & 0x0002)
977 printk(KERN_INFO "%s: jabber detected\n", dev->name);
978 lp->media_status = media;
979 }
980 spin_unlock_irqrestore(&lp->window_lock, flags);
981
982reschedule:
983 lp->media.expires = jiffies + HZ;
984 add_timer(&lp->media);
985}
986
987static struct net_device_stats *el3_get_stats(struct net_device *dev)
988{
989 struct el3_private *lp = netdev_priv(dev);
990
991 if (netif_device_present(dev)) {
992 unsigned long flags;
993 spin_lock_irqsave(&lp->window_lock, flags);
994 update_stats(dev);
995 spin_unlock_irqrestore(&lp->window_lock, flags);
996 }
997 return &lp->stats;
998}
999
1000/* Update statistics.
1001 Suprisingly this need not be run single-threaded, but it effectively is.
1002 The counters clear when read, so the adds must merely be atomic.
1003 */
1004static void update_stats(struct net_device *dev)
1005{
1006 struct el3_private *lp = netdev_priv(dev);
1007 kio_addr_t ioaddr = dev->base_addr;
1008 u8 rx, tx, up;
1009
1010 DEBUG(2, "%s: updating the statistics.\n", dev->name);
1011
1012 if (inw(ioaddr+EL3_STATUS) == 0xffff) /* No card. */
1013 return;
1014
1015 /* Unlike the 3c509 we need not turn off stats updates while reading. */
1016 /* Switch to the stats window, and read everything. */
1017 EL3WINDOW(6);
1018 lp->stats.tx_carrier_errors += inb(ioaddr + 0);
1019 lp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
1020 /* Multiple collisions. */ inb(ioaddr + 2);
1021 lp->stats.collisions += inb(ioaddr + 3);
1022 lp->stats.tx_window_errors += inb(ioaddr + 4);
1023 lp->stats.rx_fifo_errors += inb(ioaddr + 5);
1024 lp->stats.tx_packets += inb(ioaddr + 6);
1025 up = inb(ioaddr + 9);
1026 lp->stats.tx_packets += (up&0x30) << 4;
1027 /* Rx packets */ inb(ioaddr + 7);
1028 /* Tx deferrals */ inb(ioaddr + 8);
1029 rx = inw(ioaddr + 10);
1030 tx = inw(ioaddr + 12);
1031
1032 EL3WINDOW(4);
1033 /* BadSSD */ inb(ioaddr + 12);
1034 up = inb(ioaddr + 13);
1035
1036 lp->stats.tx_bytes += tx + ((up & 0xf0) << 12);
1037
1038 EL3WINDOW(1);
1039}
1040
1041static int el3_rx(struct net_device *dev, int worklimit)
1042{
1043 struct el3_private *lp = netdev_priv(dev);
1044 kio_addr_t ioaddr = dev->base_addr;
1045 short rx_status;
1046
1047 DEBUG(3, "%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n",
1048 dev->name, inw(ioaddr+EL3_STATUS), inw(ioaddr+RxStatus));
1049 while (!((rx_status = inw(ioaddr + RxStatus)) & 0x8000) &&
1050 (--worklimit >= 0)) {
1051 if (rx_status & 0x4000) { /* Error, update stats. */
1052 short error = rx_status & 0x3800;
1053 lp->stats.rx_errors++;
1054 switch (error) {
1055 case 0x0000: lp->stats.rx_over_errors++; break;
1056 case 0x0800: lp->stats.rx_length_errors++; break;
1057 case 0x1000: lp->stats.rx_frame_errors++; break;
1058 case 0x1800: lp->stats.rx_length_errors++; break;
1059 case 0x2000: lp->stats.rx_frame_errors++; break;
1060 case 0x2800: lp->stats.rx_crc_errors++; break;
1061 }
1062 } else {
1063 short pkt_len = rx_status & 0x7ff;
1064 struct sk_buff *skb;
1065
1066 skb = dev_alloc_skb(pkt_len+5);
1067
1068 DEBUG(3, " Receiving packet size %d status %4.4x.\n",
1069 pkt_len, rx_status);
1070 if (skb != NULL) {
1071 skb->dev = dev;
1072 skb_reserve(skb, 2);
1073 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
1074 ((pkt_len+3)>>2));
1075 skb->protocol = eth_type_trans(skb, dev);
1076 netif_rx(skb);
1077 dev->last_rx = jiffies;
1078 lp->stats.rx_packets++;
1079 lp->stats.rx_bytes += pkt_len;
1080 } else {
1081 DEBUG(1, "%s: couldn't allocate a sk_buff of"
1082 " size %d.\n", dev->name, pkt_len);
1083 lp->stats.rx_dropped++;
1084 }
1085 }
1086 tc574_wait_for_completion(dev, RxDiscard);
1087 }
1088
1089 return worklimit;
1090}
1091
1092static void netdev_get_drvinfo(struct net_device *dev,
1093 struct ethtool_drvinfo *info)
1094{
1095 strcpy(info->driver, "3c574_cs");
1096}
1097
7282d491 1098static const struct ethtool_ops netdev_ethtool_ops = {
1da177e4
LT		 1099 .get_drvinfo = netdev_get_drvinfo,
1100};
1101
1102/* Provide ioctl() calls to examine the MII xcvr state. */
1103static int el3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1104{
1105 struct el3_private *lp = netdev_priv(dev);
1106 kio_addr_t ioaddr = dev->base_addr;
1107 u16 *data = (u16 *)&rq->ifr_ifru;
1108 int phy = lp->phys & 0x1f;
1109
1110 DEBUG(2, "%s: In ioct(%-.6s, %#4.4x) %4.4x %4.4x %4.4x %4.4x.\n",
1111 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
1112 data[0], data[1], data[2], data[3]);
1113
1114 switch(cmd) {
1115 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
1116 data[0] = phy;
1117 case SIOCGMIIREG: /* Read the specified MII register. */
1118 {
1119 int saved_window;
1120 unsigned long flags;
1121
1122 spin_lock_irqsave(&lp->window_lock, flags);
1123 saved_window = inw(ioaddr + EL3_CMD) >> 13;
1124 EL3WINDOW(4);
1125 data[3] = mdio_read(ioaddr, data[0] & 0x1f, data[1] & 0x1f);
1126 EL3WINDOW(saved_window);
1127 spin_unlock_irqrestore(&lp->window_lock, flags);
1128 return 0;
1129 }
1130 case SIOCSMIIREG: /* Write the specified MII register */
1131 {
1132 int saved_window;
1133 unsigned long flags;
1134
1135 if (!capable(CAP_NET_ADMIN))
1136 return -EPERM;
1137 spin_lock_irqsave(&lp->window_lock, flags);
1138 saved_window = inw(ioaddr + EL3_CMD) >> 13;
1139 EL3WINDOW(4);
1140 mdio_write(ioaddr, data[0] & 0x1f, data[1] & 0x1f, data[2]);
1141 EL3WINDOW(saved_window);
1142 spin_unlock_irqrestore(&lp->window_lock, flags);
1143 return 0;
1144 }
1145 default:
1146 return -EOPNOTSUPP;
1147 }
1148}
1149
1150/* The Odie chip has a 64 bin multicast filter, but the bit layout is not
1151 documented. Until it is we revert to receiving all multicast frames when
1152 any multicast reception is desired.
1153 Note: My other drivers emit a log message whenever promiscuous mode is
1154 entered to help detect password sniffers. This is less desirable on
1155 typical PC card machines, so we omit the message.
1156 */
1157
1158static void set_rx_mode(struct net_device *dev)
1159{
1160 kio_addr_t ioaddr = dev->base_addr;
1161
1162 if (dev->flags & IFF_PROMISC)
1163 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
1164 ioaddr + EL3_CMD);
1165 else if (dev->mc_count || (dev->flags & IFF_ALLMULTI))
1166 outw(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
1167 else
1168 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1169}
1170
1171static int el3_close(struct net_device *dev)
1172{
1173 kio_addr_t ioaddr = dev->base_addr;
1174 struct el3_private *lp = netdev_priv(dev);
fba395ee 1175 struct pcmcia_device *link = lp->p_dev;
1da177e4
LT		 1176
1177 DEBUG(2, "%s: shutting down ethercard.\n", dev->name);
1178
9940ec36 1179 if (pcmcia_dev_present(link)) {
1da177e4
LT		 1180 unsigned long flags;
1181
1182 /* Turn off statistics ASAP. We update lp->stats below. */
1183 outw(StatsDisable, ioaddr + EL3_CMD);
1184
1185 /* Disable the receiver and transmitter. */
1186 outw(RxDisable, ioaddr + EL3_CMD);
1187 outw(TxDisable, ioaddr + EL3_CMD);
1188
1189 /* Note: Switching to window 0 may disable the IRQ. */
1190 EL3WINDOW(0);
1191 spin_lock_irqsave(&lp->window_lock, flags);
1192 update_stats(dev);
1193 spin_unlock_irqrestore(&lp->window_lock, flags);
b9a6eaff
DR		 1194
1195 /* force interrupts off */
1196 outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
1da177e4
LT		 1197 }
1198
1199 link->open--;
1200 netif_stop_queue(dev);
1201 del_timer_sync(&lp->media);
1202
1203 return 0;
1204}
1205
270b6e94
DB		 1206static struct pcmcia_device_id tc574_ids[] = {
1207 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0574),
1208 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0556, "3CCFEM556.cis"),
1209 PCMCIA_DEVICE_NULL,
1210};
1211MODULE_DEVICE_TABLE(pcmcia, tc574_ids);
1212
1da177e4
LT		 1213static struct pcmcia_driver tc574_driver = {
1214 .owner = THIS_MODULE,
1215 .drv = {
1216 .name = "3c574_cs",
1217 },
15b99ac1 1218 .probe = tc574_probe,
cc3b4866 1219 .remove = tc574_detach,
270b6e94 1220 .id_table = tc574_ids,
98e4c28b
DB		 1221 .suspend = tc574_suspend,
1222 .resume = tc574_resume,
1da177e4
LT		 1223};
1224
1225static int __init init_tc574(void)
1226{
1227 return pcmcia_register_driver(&tc574_driver);
1228}
1229
1230static void __exit exit_tc574(void)
1231{
1232 pcmcia_unregister_driver(&tc574_driver);
1da177e4
LT		 1233}
1234
1235module_init(init_tc574);
1236module_exit(exit_tc574);
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