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[deliverable/linux.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);
7d12e780 241static irqreturn_t el3_interrupt(int irq, void *dev_id);
1da177e4
LT		 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;
5e7bf8cc 277 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_HANDLE_PRESENT;
1da177e4
LT		 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;
1da177e4
LT		 284
285 /* The EL3-specific entries in the device structure. */
286 dev->hard_start_xmit = &el3_start_xmit;
287 dev->get_stats = &el3_get_stats;
288 dev->do_ioctl = &el3_ioctl;
289 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
290 dev->set_multicast_list = &set_rx_mode;
291 dev->open = &el3_open;
292 dev->stop = &el3_close;
293#ifdef HAVE_TX_TIMEOUT
294 dev->tx_timeout = el3_tx_timeout;
295 dev->watchdog_timeo = TX_TIMEOUT;
296#endif
297
15b99ac1 298 return tc574_config(link);
1da177e4
LT		 299} /* tc574_attach */
300
301/*
302
303 This deletes a driver "instance". The device is de-registered
304 with Card Services. If it has been released, all local data
305 structures are freed. Otherwise, the structures will be freed
306 when the device is released.
307
308*/
309
fba395ee 310static void tc574_detach(struct pcmcia_device *link)
1da177e4
LT		 311{
312 struct net_device *dev = link->priv;
1da177e4
LT		 313
314 DEBUG(0, "3c574_detach(0x%p)\n", link);
315
fd238232 316 if (link->dev_node)
1da177e4
LT		 317 unregister_netdev(dev);
318
e2d40963 319 tc574_release(link);
1da177e4 320
1da177e4
LT		 321 free_netdev(dev);
322} /* tc574_detach */
323
324/*
325 tc574_config() is scheduled to run after a CARD_INSERTION event
326 is received, to configure the PCMCIA socket, and to make the
327 ethernet device available to the system.
328*/
329
330#define CS_CHECK(fn, ret) \
331 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
332
f71e1309 333static const char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
1da177e4 334
15b99ac1 335static int tc574_config(struct pcmcia_device *link)
1da177e4 336{
1da177e4
LT		 337 struct net_device *dev = link->priv;
338 struct el3_private *lp = netdev_priv(dev);
339 tuple_t tuple;
1da177e4
LT		 340 unsigned short buf[32];
341 int last_fn, last_ret, i, j;
342 kio_addr_t ioaddr;
343 u16 *phys_addr;
344 char *cardname;
345 union wn3_config config;
0795af57 346 DECLARE_MAC_BUF(mac);
1da177e4
LT		 347
348 phys_addr = (u16 *)dev->dev_addr;
349
350 DEBUG(0, "3c574_config(0x%p)\n", link);
351
1da177e4
LT		 352 link->io.IOAddrLines = 16;
353 for (i = j = 0; j < 0x400; j += 0x20) {
354 link->io.BasePort1 = j ^ 0x300;
fba395ee 355 i = pcmcia_request_io(link, &link->io);
1da177e4
LT		 356 if (i == CS_SUCCESS) break;
357 }
358 if (i != CS_SUCCESS) {
fba395ee 359 cs_error(link, RequestIO, i);
1da177e4
LT		 360 goto failed;
361 }
fba395ee
DB		 362 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
363 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1da177e4
LT		 364
365 dev->irq = link->irq.AssignedIRQ;
366 dev->base_addr = link->io.BasePort1;
367
368 ioaddr = dev->base_addr;
369
370 /* The 3c574 normally uses an EEPROM for configuration info, including
371 the hardware address. The future products may include a modem chip
372 and put the address in the CIS. */
af2b3b50
DB		 373 tuple.Attributes = 0;
374 tuple.TupleData = (cisdata_t *)buf;
375 tuple.TupleDataMax = 64;
376 tuple.TupleOffset = 0;
1da177e4 377 tuple.DesiredTuple = 0x88;
fba395ee
DB		 378 if (pcmcia_get_first_tuple(link, &tuple) == CS_SUCCESS) {
379 pcmcia_get_tuple_data(link, &tuple);
1da177e4
LT		 380 for (i = 0; i < 3; i++)
381 phys_addr[i] = htons(buf[i]);
382 } else {
383 EL3WINDOW(0);
384 for (i = 0; i < 3; i++)
385 phys_addr[i] = htons(read_eeprom(ioaddr, i + 10));
386 if (phys_addr[0] == 0x6060) {
387 printk(KERN_NOTICE "3c574_cs: IO port conflict at 0x%03lx"
388 "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
389 goto failed;
390 }
391 }
a9606fd3
DB		 392 if (link->prod_id[1])
393 cardname = link->prod_id[1];
394 else
1da177e4
LT		 395 cardname = "3Com 3c574";
396
397 {
398 u_char mcr;
399 outw(2<<11, ioaddr + RunnerRdCtrl);
400 mcr = inb(ioaddr + 2);
401 outw(0<<11, ioaddr + RunnerRdCtrl);
402 printk(KERN_INFO " ASIC rev %d,", mcr>>3);
403 EL3WINDOW(3);
404 config.i = inl(ioaddr + Wn3_Config);
405 lp->default_media = config.u.xcvr;
406 lp->autoselect = config.u.autoselect;
407 }
408
409 init_timer(&lp->media);
410
411 {
412 int phy;
413
414 /* Roadrunner only: Turn on the MII transceiver */
415 outw(0x8040, ioaddr + Wn3_Options);
416 mdelay(1);
417 outw(0xc040, ioaddr + Wn3_Options);
418 tc574_wait_for_completion(dev, TxReset);
419 tc574_wait_for_completion(dev, RxReset);
420 mdelay(1);
421 outw(0x8040, ioaddr + Wn3_Options);
422
423 EL3WINDOW(4);
424 for (phy = 1; phy <= 32; phy++) {
425 int mii_status;
426 mdio_sync(ioaddr, 32);
427 mii_status = mdio_read(ioaddr, phy & 0x1f, 1);
428 if (mii_status != 0xffff) {
429 lp->phys = phy & 0x1f;
430 DEBUG(0, " MII transceiver at index %d, status %x.\n",
431 phy, mii_status);
432 if ((mii_status & 0x0040) == 0)
433 mii_preamble_required = 1;
434 break;
435 }
436 }
437 if (phy > 32) {
438 printk(KERN_NOTICE " No MII transceivers found!\n");
439 goto failed;
440 }
441 i = mdio_read(ioaddr, lp->phys, 16) | 0x40;
442 mdio_write(ioaddr, lp->phys, 16, i);
443 lp->advertising = mdio_read(ioaddr, lp->phys, 4);
444 if (full_duplex) {
445 /* Only advertise the FD media types. */
446 lp->advertising &= ~0x02a0;
447 mdio_write(ioaddr, lp->phys, 4, lp->advertising);
448 }
449 }
450
fd238232 451 link->dev_node = &lp->node;
fba395ee 452 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1da177e4
LT		 453
454 if (register_netdev(dev) != 0) {
455 printk(KERN_NOTICE "3c574_cs: register_netdev() failed\n");
fd238232 456 link->dev_node = NULL;
1da177e4
LT		 457 goto failed;
458 }
459
460 strcpy(lp->node.dev_name, dev->name);
461
0795af57
JP		 462 printk(KERN_INFO "%s: %s at io %#3lx, irq %d, "
463 "hw_addr %s.\n",
464 dev->name, cardname, dev->base_addr, dev->irq,
465 print_mac(mac, dev->dev_addr));
1da177e4
LT		 466 printk(" %dK FIFO split %s Rx:Tx, %sMII interface.\n",
467 8 << config.u.ram_size, ram_split[config.u.ram_split],
468 config.u.autoselect ? "autoselect " : "");
469
15b99ac1 470 return 0;
1da177e4
LT		 471
472cs_failed:
fba395ee 473 cs_error(link, last_fn, last_ret);
1da177e4
LT		 474failed:
475 tc574_release(link);
15b99ac1 476 return -ENODEV;
1da177e4
LT		 477
478} /* tc574_config */
479
480/*
481 After a card is removed, tc574_release() will unregister the net
482 device, and release the PCMCIA configuration. If the device is
483 still open, this will be postponed until it is closed.
484*/
485
fba395ee 486static void tc574_release(struct pcmcia_device *link)
1da177e4 487{
fba395ee 488 pcmcia_disable_device(link);
1da177e4
LT		 489}
490
fba395ee 491static int tc574_suspend(struct pcmcia_device *link)
98e4c28b 492{
98e4c28b
DB		 493 struct net_device *dev = link->priv;
494
e2d40963 495 if (link->open)
8661bb5b 496 netif_device_detach(dev);
98e4c28b
DB		 497
498 return 0;
499}
500
fba395ee 501static int tc574_resume(struct pcmcia_device *link)
98e4c28b 502{
98e4c28b
DB		 503 struct net_device *dev = link->priv;
504
e2d40963 505 if (link->open) {
8661bb5b
DB		 506 tc574_reset(dev);
507 netif_device_attach(dev);
98e4c28b
DB		 508 }
509
510 return 0;
511}
512
1da177e4
LT		 513static void dump_status(struct net_device *dev)
514{
515 kio_addr_t ioaddr = dev->base_addr;
516 EL3WINDOW(1);
517 printk(KERN_INFO " irq status %04x, rx status %04x, tx status "
518 "%02x, tx free %04x\n", inw(ioaddr+EL3_STATUS),
519 inw(ioaddr+RxStatus), inb(ioaddr+TxStatus),
520 inw(ioaddr+TxFree));
521 EL3WINDOW(4);
522 printk(KERN_INFO " diagnostics: fifo %04x net %04x ethernet %04x"
523 " media %04x\n", inw(ioaddr+0x04), inw(ioaddr+0x06),
524 inw(ioaddr+0x08), inw(ioaddr+0x0a));
525 EL3WINDOW(1);
526}
527
528/*
529 Use this for commands that may take time to finish
530*/
531static void tc574_wait_for_completion(struct net_device *dev, int cmd)
532{
533 int i = 1500;
534 outw(cmd, dev->base_addr + EL3_CMD);
535 while (--i > 0)
536 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
537 if (i == 0)
538 printk(KERN_NOTICE "%s: command 0x%04x did not complete!\n", dev->name, cmd);
539}
540
541/* Read a word from the EEPROM using the regular EEPROM access register.
542 Assume that we are in register window zero.
543 */
544static unsigned short read_eeprom(kio_addr_t ioaddr, int index)
545{
546 int timer;
547 outw(EEPROM_Read + index, ioaddr + Wn0EepromCmd);
548 /* Pause for at least 162 usec for the read to take place. */
549 for (timer = 1620; timer >= 0; timer--) {
550 if ((inw(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
551 break;
552 }
553 return inw(ioaddr + Wn0EepromData);
554}
555
556/* MII transceiver control section.
557 Read and write the MII registers using software-generated serial
558 MDIO protocol. See the MII specifications or DP83840A data sheet
559 for details.
560 The maxium data clock rate is 2.5 Mhz. The timing is easily met by the
561 slow PC card interface. */
562
563#define MDIO_SHIFT_CLK 0x01
564#define MDIO_DIR_WRITE 0x04
565#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
566#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
567#define MDIO_DATA_READ 0x02
568#define MDIO_ENB_IN 0x00
569
570/* Generate the preamble required for initial synchronization and
571 a few older transceivers. */
572static void mdio_sync(kio_addr_t ioaddr, int bits)
573{
574 kio_addr_t mdio_addr = ioaddr + Wn4_PhysicalMgmt;
575
576 /* Establish sync by sending at least 32 logic ones. */
577 while (-- bits >= 0) {
578 outw(MDIO_DATA_WRITE1, mdio_addr);
579 outw(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
580 }
581}
582
583static int mdio_read(kio_addr_t ioaddr, int phy_id, int location)
584{
585 int i;
586 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
587 unsigned int retval = 0;
588 kio_addr_t mdio_addr = ioaddr + Wn4_PhysicalMgmt;
589
590 if (mii_preamble_required)
591 mdio_sync(ioaddr, 32);
592
593 /* Shift the read command bits out. */
594 for (i = 14; i >= 0; i--) {
595 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
596 outw(dataval, mdio_addr);
597 outw(dataval | MDIO_SHIFT_CLK, mdio_addr);
598 }
599 /* Read the two transition, 16 data, and wire-idle bits. */
600 for (i = 19; i > 0; i--) {
601 outw(MDIO_ENB_IN, mdio_addr);
602 retval = (retval << 1) | ((inw(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
603 outw(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
604 }
605 return (retval>>1) & 0xffff;
606}
607
608static void mdio_write(kio_addr_t ioaddr, int phy_id, int location, int value)
609{
610 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
611 kio_addr_t mdio_addr = ioaddr + Wn4_PhysicalMgmt;
612 int i;
613
614 if (mii_preamble_required)
615 mdio_sync(ioaddr, 32);
616
617 /* Shift the command bits out. */
618 for (i = 31; i >= 0; i--) {
619 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
620 outw(dataval, mdio_addr);
621 outw(dataval | MDIO_SHIFT_CLK, mdio_addr);
622 }
623 /* Leave the interface idle. */
624 for (i = 1; i >= 0; i--) {
625 outw(MDIO_ENB_IN, mdio_addr);
626 outw(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
627 }
628
629 return;
630}
631
632/* Reset and restore all of the 3c574 registers. */
633static void tc574_reset(struct net_device *dev)
634{
635 struct el3_private *lp = netdev_priv(dev);
636 int i;
637 kio_addr_t ioaddr = dev->base_addr;
638 unsigned long flags;
639
640 tc574_wait_for_completion(dev, TotalReset|0x10);
641
642 spin_lock_irqsave(&lp->window_lock, flags);
643 /* Clear any transactions in progress. */
644 outw(0, ioaddr + RunnerWrCtrl);
645 outw(0, ioaddr + RunnerRdCtrl);
646
647 /* Set the station address and mask. */
648 EL3WINDOW(2);
649 for (i = 0; i < 6; i++)
650 outb(dev->dev_addr[i], ioaddr + i);
651 for (; i < 12; i+=2)
652 outw(0, ioaddr + i);
653
654 /* Reset config options */
655 EL3WINDOW(3);
656 outb((dev->mtu > 1500 ? 0x40 : 0), ioaddr + Wn3_MAC_Ctrl);
657 outl((lp->autoselect ? 0x01000000 : 0) | 0x0062001b,
658 ioaddr + Wn3_Config);
659 /* Roadrunner only: Turn on the MII transceiver. */
660 outw(0x8040, ioaddr + Wn3_Options);
661 mdelay(1);
662 outw(0xc040, ioaddr + Wn3_Options);
663 EL3WINDOW(1);
664 spin_unlock_irqrestore(&lp->window_lock, flags);
665
666 tc574_wait_for_completion(dev, TxReset);
667 tc574_wait_for_completion(dev, RxReset);
668 mdelay(1);
669 spin_lock_irqsave(&lp->window_lock, flags);
670 EL3WINDOW(3);
671 outw(0x8040, ioaddr + Wn3_Options);
672
673 /* Switch to the stats window, and clear all stats by reading. */
674 outw(StatsDisable, ioaddr + EL3_CMD);
675 EL3WINDOW(6);
676 for (i = 0; i < 10; i++)
677 inb(ioaddr + i);
678 inw(ioaddr + 10);
679 inw(ioaddr + 12);
680 EL3WINDOW(4);
681 inb(ioaddr + 12);
682 inb(ioaddr + 13);
683
684 /* .. enable any extra statistics bits.. */
685 outw(0x0040, ioaddr + Wn4_NetDiag);
686
687 EL3WINDOW(1);
688 spin_unlock_irqrestore(&lp->window_lock, flags);
689
690 /* .. re-sync MII and re-fill what NWay is advertising. */
691 mdio_sync(ioaddr, 32);
692 mdio_write(ioaddr, lp->phys, 4, lp->advertising);
693 if (!auto_polarity) {
694 /* works for TDK 78Q2120 series MII's */
695 int i = mdio_read(ioaddr, lp->phys, 16) | 0x20;
696 mdio_write(ioaddr, lp->phys, 16, i);
697 }
698
699 spin_lock_irqsave(&lp->window_lock, flags);
700 /* Switch to register set 1 for normal use, just for TxFree. */
701 set_rx_mode(dev);
702 spin_unlock_irqrestore(&lp->window_lock, flags);
703 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
704 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
705 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
706 /* Allow status bits to be seen. */
707 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
708 /* Ack all pending events, and set active indicator mask. */
709 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
710 ioaddr + EL3_CMD);
711 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
712 | AdapterFailure | RxEarly, ioaddr + EL3_CMD);
713}
714
715static int el3_open(struct net_device *dev)
716{
717 struct el3_private *lp = netdev_priv(dev);
fba395ee 718 struct pcmcia_device *link = lp->p_dev;
1da177e4 719
9940ec36 720 if (!pcmcia_dev_present(link))
1da177e4
LT		 721 return -ENODEV;
722
723 link->open++;
724 netif_start_queue(dev);
725
726 tc574_reset(dev);
727 lp->media.function = &media_check;
728 lp->media.data = (unsigned long) dev;
729 lp->media.expires = jiffies + HZ;
730 add_timer(&lp->media);
731
732 DEBUG(2, "%s: opened, status %4.4x.\n",
733 dev->name, inw(dev->base_addr + EL3_STATUS));
734
735 return 0;
736}
737
738static void el3_tx_timeout(struct net_device *dev)
739{
740 struct el3_private *lp = netdev_priv(dev);
741 kio_addr_t ioaddr = dev->base_addr;
742
743 printk(KERN_NOTICE "%s: Transmit timed out!\n", dev->name);
744 dump_status(dev);
745 lp->stats.tx_errors++;
746 dev->trans_start = jiffies;
747 /* Issue TX_RESET and TX_START commands. */
748 tc574_wait_for_completion(dev, TxReset);
749 outw(TxEnable, ioaddr + EL3_CMD);
750 netif_wake_queue(dev);
751}
752
753static void pop_tx_status(struct net_device *dev)
754{
755 struct el3_private *lp = netdev_priv(dev);
756 kio_addr_t ioaddr = dev->base_addr;
757 int i;
758
759 /* Clear the Tx status stack. */
760 for (i = 32; i > 0; i--) {
761 u_char tx_status = inb(ioaddr + TxStatus);
762 if (!(tx_status & 0x84))
763 break;
764 /* reset transmitter on jabber error or underrun */
765 if (tx_status & 0x30)
766 tc574_wait_for_completion(dev, TxReset);
767 if (tx_status & 0x38) {
768 DEBUG(1, "%s: transmit error: status 0x%02x\n",
769 dev->name, tx_status);
770 outw(TxEnable, ioaddr + EL3_CMD);
771 lp->stats.tx_aborted_errors++;
772 }
773 outb(0x00, ioaddr + TxStatus); /* Pop the status stack. */
774 }
775}
776
777static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
778{
779 kio_addr_t ioaddr = dev->base_addr;
780 struct el3_private *lp = netdev_priv(dev);
781 unsigned long flags;
782
783 DEBUG(3, "%s: el3_start_xmit(length = %ld) called, "
784 "status %4.4x.\n", dev->name, (long)skb->len,
785 inw(ioaddr + EL3_STATUS));
786
787 spin_lock_irqsave(&lp->window_lock, flags);
788 outw(skb->len, ioaddr + TX_FIFO);
789 outw(0, ioaddr + TX_FIFO);
790 outsl(ioaddr + TX_FIFO, skb->data, (skb->len+3)>>2);
791
792 dev->trans_start = jiffies;
793
794 /* TxFree appears only in Window 1, not offset 0x1c. */
795 if (inw(ioaddr + TxFree) <= 1536) {
796 netif_stop_queue(dev);
797 /* Interrupt us when the FIFO has room for max-sized packet.
798 The threshold is in units of dwords. */
799 outw(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
800 }
801
802 pop_tx_status(dev);
803 spin_unlock_irqrestore(&lp->window_lock, flags);
804 dev_kfree_skb(skb);
805 return 0;
806}
807
808/* The EL3 interrupt handler. */
7d12e780 809static irqreturn_t el3_interrupt(int irq, void *dev_id)
1da177e4
LT		 810{
811 struct net_device *dev = (struct net_device *) dev_id;
812 struct el3_private *lp = netdev_priv(dev);
813 kio_addr_t ioaddr;
814 unsigned status;
815 int work_budget = max_interrupt_work;
816 int handled = 0;
817
818 if (!netif_device_present(dev))
819 return IRQ_NONE;
820 ioaddr = dev->base_addr;
821
822 DEBUG(3, "%s: interrupt, status %4.4x.\n",
823 dev->name, inw(ioaddr + EL3_STATUS));
824
825 spin_lock(&lp->window_lock);
826
827 while ((status = inw(ioaddr + EL3_STATUS)) &
828 (IntLatch | RxComplete | RxEarly | StatsFull)) {
829 if (!netif_device_present(dev) ||
830 ((status & 0xe000) != 0x2000)) {
831 DEBUG(1, "%s: Interrupt from dead card\n", dev->name);
832 break;
833 }
834
835 handled = 1;
836
837 if (status & RxComplete)
838 work_budget = el3_rx(dev, work_budget);
839
840 if (status & TxAvailable) {
841 DEBUG(3, " TX room bit was handled.\n");
842 /* There's room in the FIFO for a full-sized packet. */
843 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
844 netif_wake_queue(dev);
845 }
846
847 if (status & TxComplete)
848 pop_tx_status(dev);
849
850 if (status & (AdapterFailure | RxEarly | StatsFull)) {
851 /* Handle all uncommon interrupts. */
852 if (status & StatsFull)
853 update_stats(dev);
854 if (status & RxEarly) {
855 work_budget = el3_rx(dev, work_budget);
856 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
857 }
858 if (status & AdapterFailure) {
859 u16 fifo_diag;
860 EL3WINDOW(4);
861 fifo_diag = inw(ioaddr + Wn4_FIFODiag);
862 EL3WINDOW(1);
863 printk(KERN_NOTICE "%s: adapter failure, FIFO diagnostic"
864 " register %04x.\n", dev->name, fifo_diag);
865 if (fifo_diag & 0x0400) {
866 /* Tx overrun */
867 tc574_wait_for_completion(dev, TxReset);
868 outw(TxEnable, ioaddr + EL3_CMD);
869 }
870 if (fifo_diag & 0x2000) {
871 /* Rx underrun */
872 tc574_wait_for_completion(dev, RxReset);
873 set_rx_mode(dev);
874 outw(RxEnable, ioaddr + EL3_CMD);
875 }
876 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
877 }
878 }
879
880 if (--work_budget < 0) {
881 DEBUG(0, "%s: Too much work in interrupt, "
882 "status %4.4x.\n", dev->name, status);
883 /* Clear all interrupts */
884 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
885 break;
886 }
887 /* Acknowledge the IRQ. */
888 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
889 }
890
891 DEBUG(3, "%s: exiting interrupt, status %4.4x.\n",
892 dev->name, inw(ioaddr + EL3_STATUS));
893
894 spin_unlock(&lp->window_lock);
895 return IRQ_RETVAL(handled);
896}
897
898/*
899 This timer serves two purposes: to check for missed interrupts
900 (and as a last resort, poll the NIC for events), and to monitor
901 the MII, reporting changes in cable status.
902*/
903static void media_check(unsigned long arg)
904{
905 struct net_device *dev = (struct net_device *) arg;
906 struct el3_private *lp = netdev_priv(dev);
907 kio_addr_t ioaddr = dev->base_addr;
908 unsigned long flags;
909 unsigned short /* cable, */ media, partner;
910
911 if (!netif_device_present(dev))
912 goto reschedule;
913
914 /* Check for pending interrupt with expired latency timer: with
915 this, we can limp along even if the interrupt is blocked */
916 if ((inw(ioaddr + EL3_STATUS) & IntLatch) && (inb(ioaddr + Timer) == 0xff)) {
917 if (!lp->fast_poll)
918 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
e363d138 919 el3_interrupt(dev->irq, dev);
1da177e4
LT		 920 lp->fast_poll = HZ;
921 }
922 if (lp->fast_poll) {
923 lp->fast_poll--;
924 lp->media.expires = jiffies + 2*HZ/100;
925 add_timer(&lp->media);
926 return;
927 }
928
929 spin_lock_irqsave(&lp->window_lock, flags);
930 EL3WINDOW(4);
931 media = mdio_read(ioaddr, lp->phys, 1);
932 partner = mdio_read(ioaddr, lp->phys, 5);
933 EL3WINDOW(1);
934
935 if (media != lp->media_status) {
936 if ((media ^ lp->media_status) & 0x0004)
937 printk(KERN_INFO "%s: %s link beat\n", dev->name,
938 (lp->media_status & 0x0004) ? "lost" : "found");
939 if ((media ^ lp->media_status) & 0x0020) {
940 lp->partner = 0;
941 if (lp->media_status & 0x0020) {
942 printk(KERN_INFO "%s: autonegotiation restarted\n",
943 dev->name);
944 } else if (partner) {
945 partner &= lp->advertising;
946 lp->partner = partner;
947 printk(KERN_INFO "%s: autonegotiation complete: "
948 "%sbaseT-%cD selected\n", dev->name,
949 ((partner & 0x0180) ? "100" : "10"),
950 ((partner & 0x0140) ? 'F' : 'H'));
951 } else {
952 printk(KERN_INFO "%s: link partner did not autonegotiate\n",
953 dev->name);
954 }
955
956 EL3WINDOW(3);
957 outb((partner & 0x0140 ? 0x20 : 0) |
958 (dev->mtu > 1500 ? 0x40 : 0), ioaddr + Wn3_MAC_Ctrl);
959 EL3WINDOW(1);
960
961 }
962 if (media & 0x0010)
963 printk(KERN_INFO "%s: remote fault detected\n",
964 dev->name);
965 if (media & 0x0002)
966 printk(KERN_INFO "%s: jabber detected\n", dev->name);
967 lp->media_status = media;
968 }
969 spin_unlock_irqrestore(&lp->window_lock, flags);
970
971reschedule:
972 lp->media.expires = jiffies + HZ;
973 add_timer(&lp->media);
974}
975
976static struct net_device_stats *el3_get_stats(struct net_device *dev)
977{
978 struct el3_private *lp = netdev_priv(dev);
979
980 if (netif_device_present(dev)) {
981 unsigned long flags;
982 spin_lock_irqsave(&lp->window_lock, flags);
983 update_stats(dev);
984 spin_unlock_irqrestore(&lp->window_lock, flags);
985 }
986 return &lp->stats;
987}
988
989/* Update statistics.
990 Suprisingly this need not be run single-threaded, but it effectively is.
991 The counters clear when read, so the adds must merely be atomic.
992 */
993static void update_stats(struct net_device *dev)
994{
995 struct el3_private *lp = netdev_priv(dev);
996 kio_addr_t ioaddr = dev->base_addr;
997 u8 rx, tx, up;
998
999 DEBUG(2, "%s: updating the statistics.\n", dev->name);
1000
1001 if (inw(ioaddr+EL3_STATUS) == 0xffff) /* No card. */
1002 return;
1003
1004 /* Unlike the 3c509 we need not turn off stats updates while reading. */
1005 /* Switch to the stats window, and read everything. */
1006 EL3WINDOW(6);
1007 lp->stats.tx_carrier_errors += inb(ioaddr + 0);
1008 lp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
1009 /* Multiple collisions. */ inb(ioaddr + 2);
1010 lp->stats.collisions += inb(ioaddr + 3);
1011 lp->stats.tx_window_errors += inb(ioaddr + 4);
1012 lp->stats.rx_fifo_errors += inb(ioaddr + 5);
1013 lp->stats.tx_packets += inb(ioaddr + 6);
1014 up = inb(ioaddr + 9);
1015 lp->stats.tx_packets += (up&0x30) << 4;
1016 /* Rx packets */ inb(ioaddr + 7);
1017 /* Tx deferrals */ inb(ioaddr + 8);
1018 rx = inw(ioaddr + 10);
1019 tx = inw(ioaddr + 12);
1020
1021 EL3WINDOW(4);
1022 /* BadSSD */ inb(ioaddr + 12);
1023 up = inb(ioaddr + 13);
1024
1025 lp->stats.tx_bytes += tx + ((up & 0xf0) << 12);
1026
1027 EL3WINDOW(1);
1028}
1029
1030static int el3_rx(struct net_device *dev, int worklimit)
1031{
1032 struct el3_private *lp = netdev_priv(dev);
1033 kio_addr_t ioaddr = dev->base_addr;
1034 short rx_status;
1035
1036 DEBUG(3, "%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n",
1037 dev->name, inw(ioaddr+EL3_STATUS), inw(ioaddr+RxStatus));
1038 while (!((rx_status = inw(ioaddr + RxStatus)) & 0x8000) &&
1039 (--worklimit >= 0)) {
1040 if (rx_status & 0x4000) { /* Error, update stats. */
1041 short error = rx_status & 0x3800;
1042 lp->stats.rx_errors++;
1043 switch (error) {
1044 case 0x0000: lp->stats.rx_over_errors++; break;
1045 case 0x0800: lp->stats.rx_length_errors++; break;
1046 case 0x1000: lp->stats.rx_frame_errors++; break;
1047 case 0x1800: lp->stats.rx_length_errors++; break;
1048 case 0x2000: lp->stats.rx_frame_errors++; break;
1049 case 0x2800: lp->stats.rx_crc_errors++; break;
1050 }
1051 } else {
1052 short pkt_len = rx_status & 0x7ff;
1053 struct sk_buff *skb;
1054
1055 skb = dev_alloc_skb(pkt_len+5);
1056
1057 DEBUG(3, " Receiving packet size %d status %4.4x.\n",
1058 pkt_len, rx_status);
1059 if (skb != NULL) {
1da177e4
LT		 1060 skb_reserve(skb, 2);
1061 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
1062 ((pkt_len+3)>>2));
1063 skb->protocol = eth_type_trans(skb, dev);
1064 netif_rx(skb);
1065 dev->last_rx = jiffies;
1066 lp->stats.rx_packets++;
1067 lp->stats.rx_bytes += pkt_len;
1068 } else {
1069 DEBUG(1, "%s: couldn't allocate a sk_buff of"
1070 " size %d.\n", dev->name, pkt_len);
1071 lp->stats.rx_dropped++;
1072 }
1073 }
1074 tc574_wait_for_completion(dev, RxDiscard);
1075 }
1076
1077 return worklimit;
1078}
1079
1080static void netdev_get_drvinfo(struct net_device *dev,
1081 struct ethtool_drvinfo *info)
1082{
1083 strcpy(info->driver, "3c574_cs");
1084}
1085
7282d491 1086static const struct ethtool_ops netdev_ethtool_ops = {
1da177e4
LT		 1087 .get_drvinfo = netdev_get_drvinfo,
1088};
1089
1090/* Provide ioctl() calls to examine the MII xcvr state. */
1091static int el3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1092{
1093 struct el3_private *lp = netdev_priv(dev);
1094 kio_addr_t ioaddr = dev->base_addr;
1095 u16 *data = (u16 *)&rq->ifr_ifru;
1096 int phy = lp->phys & 0x1f;
1097
1098 DEBUG(2, "%s: In ioct(%-.6s, %#4.4x) %4.4x %4.4x %4.4x %4.4x.\n",
1099 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
1100 data[0], data[1], data[2], data[3]);
1101
1102 switch(cmd) {
1103 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
1104 data[0] = phy;
1105 case SIOCGMIIREG: /* Read the specified MII register. */
1106 {
1107 int saved_window;
1108 unsigned long flags;
1109
1110 spin_lock_irqsave(&lp->window_lock, flags);
1111 saved_window = inw(ioaddr + EL3_CMD) >> 13;
1112 EL3WINDOW(4);
1113 data[3] = mdio_read(ioaddr, data[0] & 0x1f, data[1] & 0x1f);
1114 EL3WINDOW(saved_window);
1115 spin_unlock_irqrestore(&lp->window_lock, flags);
1116 return 0;
1117 }
1118 case SIOCSMIIREG: /* Write the specified MII register */
1119 {
1120 int saved_window;
1121 unsigned long flags;
1122
1123 if (!capable(CAP_NET_ADMIN))
1124 return -EPERM;
1125 spin_lock_irqsave(&lp->window_lock, flags);
1126 saved_window = inw(ioaddr + EL3_CMD) >> 13;
1127 EL3WINDOW(4);
1128 mdio_write(ioaddr, data[0] & 0x1f, data[1] & 0x1f, data[2]);
1129 EL3WINDOW(saved_window);
1130 spin_unlock_irqrestore(&lp->window_lock, flags);
1131 return 0;
1132 }
1133 default:
1134 return -EOPNOTSUPP;
1135 }
1136}
1137
1138/* The Odie chip has a 64 bin multicast filter, but the bit layout is not
1139 documented. Until it is we revert to receiving all multicast frames when
1140 any multicast reception is desired.
1141 Note: My other drivers emit a log message whenever promiscuous mode is
1142 entered to help detect password sniffers. This is less desirable on
1143 typical PC card machines, so we omit the message.
1144 */
1145
1146static void set_rx_mode(struct net_device *dev)
1147{
1148 kio_addr_t ioaddr = dev->base_addr;
1149
1150 if (dev->flags & IFF_PROMISC)
1151 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
1152 ioaddr + EL3_CMD);
1153 else if (dev->mc_count || (dev->flags & IFF_ALLMULTI))
1154 outw(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
1155 else
1156 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1157}
1158
1159static int el3_close(struct net_device *dev)
1160{
1161 kio_addr_t ioaddr = dev->base_addr;
1162 struct el3_private *lp = netdev_priv(dev);
fba395ee 1163 struct pcmcia_device *link = lp->p_dev;
1da177e4
LT		 1164
1165 DEBUG(2, "%s: shutting down ethercard.\n", dev->name);
1166
9940ec36 1167 if (pcmcia_dev_present(link)) {
1da177e4
LT		 1168 unsigned long flags;
1169
1170 /* Turn off statistics ASAP. We update lp->stats below. */
1171 outw(StatsDisable, ioaddr + EL3_CMD);
1172
1173 /* Disable the receiver and transmitter. */
1174 outw(RxDisable, ioaddr + EL3_CMD);
1175 outw(TxDisable, ioaddr + EL3_CMD);
1176
1177 /* Note: Switching to window 0 may disable the IRQ. */
1178 EL3WINDOW(0);
1179 spin_lock_irqsave(&lp->window_lock, flags);
1180 update_stats(dev);
1181 spin_unlock_irqrestore(&lp->window_lock, flags);
b9a6eaff
DR		 1182
1183 /* force interrupts off */
1184 outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
1da177e4
LT		 1185 }
1186
1187 link->open--;
1188 netif_stop_queue(dev);
1189 del_timer_sync(&lp->media);
1190
1191 return 0;
1192}
1193
270b6e94
DB		 1194static struct pcmcia_device_id tc574_ids[] = {
1195 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0574),
1196 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0556, "3CCFEM556.cis"),
1197 PCMCIA_DEVICE_NULL,
1198};
1199MODULE_DEVICE_TABLE(pcmcia, tc574_ids);
1200
1da177e4
LT		 1201static struct pcmcia_driver tc574_driver = {
1202 .owner = THIS_MODULE,
1203 .drv = {
1204 .name = "3c574_cs",
1205 },
15b99ac1 1206 .probe = tc574_probe,
cc3b4866 1207 .remove = tc574_detach,
270b6e94 1208 .id_table = tc574_ids,
98e4c28b
DB		 1209 .suspend = tc574_suspend,
1210 .resume = tc574_resume,
1da177e4
LT		 1211};
1212
1213static int __init init_tc574(void)
1214{
1215 return pcmcia_register_driver(&tc574_driver);
1216}
1217
1218static void __exit exit_tc574(void)
1219{
1220 pcmcia_unregister_driver(&tc574_driver);
1da177e4
LT		 1221}
1222
1223module_init(init_tc574);
1224module_exit(exit_tc574);
Linux kernel - Deliverables
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