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[deliverable/linux.git] / drivers / net / pcmcia / 3c574_cs.c
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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};
b6659824
AV		 190enum wn3_config {
191 Ram_size = 7,
192 Ram_width = 8,
193 Ram_speed = 0x30,
194 Rom_size = 0xc0,
195 Ram_split_shift = 16,
196 Ram_split = 3 << Ram_split_shift,
197 Xcvr_shift = 20,
198 Xcvr = 7 << Xcvr_shift,
199 Autoselect = 0x1000000,
1da177e4
LT		 200};
201
202enum Window4 { /* Window 4: Xcvr/media bits. */
203 Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10,
204};
205
206#define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
207
208struct el3_private {
fd238232 209 struct pcmcia_device *p_dev;
1da177e4 210 dev_node_t node;
1da177e4
LT		 211 u16 advertising, partner; /* NWay media advertisement */
212 unsigned char phys; /* MII device address */
213 unsigned int autoselect:1, default_media:3; /* Read from the EEPROM/Wn3_Config. */
214 /* for transceiver monitoring */
215 struct timer_list media;
216 unsigned short media_status;
217 unsigned short fast_poll;
218 unsigned long last_irq;
219 spinlock_t window_lock; /* Guards the Window selection */
220};
221
222/* Set iff a MII transceiver on any interface requires mdio preamble.
223 This only set with the original DP83840 on older 3c905 boards, so the extra
224 code size of a per-interface flag is not worthwhile. */
225static char mii_preamble_required = 0;
226
227/* Index of functions. */
228
15b99ac1 229static int tc574_config(struct pcmcia_device *link);
fba395ee 230static void tc574_release(struct pcmcia_device *link);
1da177e4 231
906da809
OJ		 232static void mdio_sync(unsigned int ioaddr, int bits);
233static int mdio_read(unsigned int ioaddr, int phy_id, int location);
234static void mdio_write(unsigned int ioaddr, int phy_id, int location,
235 int value);
236static unsigned short read_eeprom(unsigned int ioaddr, int index);
1da177e4
LT		 237static void tc574_wait_for_completion(struct net_device *dev, int cmd);
238
239static void tc574_reset(struct net_device *dev);
240static void media_check(unsigned long arg);
241static int el3_open(struct net_device *dev);
242static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev);
7d12e780 243static irqreturn_t el3_interrupt(int irq, void *dev_id);
1da177e4
LT		 244static void update_stats(struct net_device *dev);
245static struct net_device_stats *el3_get_stats(struct net_device *dev);
246static int el3_rx(struct net_device *dev, int worklimit);
247static int el3_close(struct net_device *dev);
248static void el3_tx_timeout(struct net_device *dev);
249static int el3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
7282d491 250static const struct ethtool_ops netdev_ethtool_ops;
1da177e4
LT		 251static void set_rx_mode(struct net_device *dev);
252
cc3b4866 253static void tc574_detach(struct pcmcia_device *p_dev);
1da177e4 254
1da177e4
LT		 255/*
256 tc574_attach() creates an "instance" of the driver, allocating
257 local data structures for one device. The device is registered
258 with Card Services.
259*/
260
15b99ac1 261static int tc574_probe(struct pcmcia_device *link)
1da177e4
LT		 262{
263 struct el3_private *lp;
1da177e4 264 struct net_device *dev;
1da177e4
LT		 265
266 DEBUG(0, "3c574_attach()\n");
267
268 /* Create the PC card device object. */
269 dev = alloc_etherdev(sizeof(struct el3_private));
270 if (!dev)
f8cfa618 271 return -ENOMEM;
1da177e4 272 lp = netdev_priv(dev);
1da177e4 273 link->priv = dev;
fba395ee 274 lp->p_dev = link;
1da177e4
LT		 275
276 spin_lock_init(&lp->window_lock);
277 link->io.NumPorts1 = 32;
278 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
5e7bf8cc 279 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_HANDLE_PRESENT;
1da177e4
LT		 280 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
281 link->irq.Handler = &el3_interrupt;
282 link->irq.Instance = dev;
283 link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4
LT		 284 link->conf.IntType = INT_MEMORY_AND_IO;
285 link->conf.ConfigIndex = 1;
1da177e4
LT		 286
287 /* The EL3-specific entries in the device structure. */
288 dev->hard_start_xmit = &el3_start_xmit;
289 dev->get_stats = &el3_get_stats;
290 dev->do_ioctl = &el3_ioctl;
291 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
292 dev->set_multicast_list = &set_rx_mode;
293 dev->open = &el3_open;
294 dev->stop = &el3_close;
295#ifdef HAVE_TX_TIMEOUT
296 dev->tx_timeout = el3_tx_timeout;
297 dev->watchdog_timeo = TX_TIMEOUT;
298#endif
299
15b99ac1 300 return tc574_config(link);
1da177e4
LT		 301} /* tc574_attach */
302
303/*
304
305 This deletes a driver "instance". The device is de-registered
306 with Card Services. If it has been released, all local data
307 structures are freed. Otherwise, the structures will be freed
308 when the device is released.
309
310*/
311
fba395ee 312static void tc574_detach(struct pcmcia_device *link)
1da177e4
LT		 313{
314 struct net_device *dev = link->priv;
1da177e4
LT		 315
316 DEBUG(0, "3c574_detach(0x%p)\n", link);
317
fd238232 318 if (link->dev_node)
1da177e4
LT		 319 unregister_netdev(dev);
320
e2d40963 321 tc574_release(link);
1da177e4 322
1da177e4
LT		 323 free_netdev(dev);
324} /* tc574_detach */
325
326/*
327 tc574_config() is scheduled to run after a CARD_INSERTION event
328 is received, to configure the PCMCIA socket, and to make the
329 ethernet device available to the system.
330*/
331
332#define CS_CHECK(fn, ret) \
333 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
334
f71e1309 335static const char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
1da177e4 336
15b99ac1 337static int tc574_config(struct pcmcia_device *link)
1da177e4 338{
1da177e4
LT		 339 struct net_device *dev = link->priv;
340 struct el3_private *lp = netdev_priv(dev);
341 tuple_t tuple;
b1e247ad 342 __le16 buf[32];
1da177e4 343 int last_fn, last_ret, i, j;
906da809 344 unsigned int ioaddr;
b1e247ad 345 __be16 *phys_addr;
1da177e4 346 char *cardname;
b6659824 347 __u32 config;
1da177e4 348
b1e247ad 349 phys_addr = (__be16 *)dev->dev_addr;
1da177e4
LT		 350
351 DEBUG(0, "3c574_config(0x%p)\n", link);
352
1da177e4
LT		 353 link->io.IOAddrLines = 16;
354 for (i = j = 0; j < 0x400; j += 0x20) {
355 link->io.BasePort1 = j ^ 0x300;
fba395ee 356 i = pcmcia_request_io(link, &link->io);
4c89e88b
DB		 357 if (i == 0)
358 break;
1da177e4 359 }
4c89e88b 360 if (i != 0) {
fba395ee 361 cs_error(link, RequestIO, i);
1da177e4
LT		 362 goto failed;
363 }
fba395ee
DB		 364 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
365 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1da177e4
LT		 366
367 dev->irq = link->irq.AssignedIRQ;
368 dev->base_addr = link->io.BasePort1;
369
370 ioaddr = dev->base_addr;
371
372 /* The 3c574 normally uses an EEPROM for configuration info, including
373 the hardware address. The future products may include a modem chip
374 and put the address in the CIS. */
af2b3b50
DB		 375 tuple.Attributes = 0;
376 tuple.TupleData = (cisdata_t *)buf;
377 tuple.TupleDataMax = 64;
378 tuple.TupleOffset = 0;
1da177e4 379 tuple.DesiredTuple = 0x88;
4c89e88b 380 if (pcmcia_get_first_tuple(link, &tuple) == 0) {
fba395ee 381 pcmcia_get_tuple_data(link, &tuple);
1da177e4 382 for (i = 0; i < 3; i++)
b1e247ad 383 phys_addr[i] = htons(le16_to_cpu(buf[i]));
1da177e4
LT		 384 } else {
385 EL3WINDOW(0);
386 for (i = 0; i < 3; i++)
387 phys_addr[i] = htons(read_eeprom(ioaddr, i + 10));
b1e247ad 388 if (phys_addr[0] == htons(0x6060)) {
1da177e4
LT		 389 printk(KERN_NOTICE "3c574_cs: IO port conflict at 0x%03lx"
390 "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
391 goto failed;
392 }
393 }
a9606fd3
DB		 394 if (link->prod_id[1])
395 cardname = link->prod_id[1];
396 else
1da177e4
LT		 397 cardname = "3Com 3c574";
398
399 {
400 u_char mcr;
401 outw(2<<11, ioaddr + RunnerRdCtrl);
402 mcr = inb(ioaddr + 2);
403 outw(0<<11, ioaddr + RunnerRdCtrl);
404 printk(KERN_INFO " ASIC rev %d,", mcr>>3);
405 EL3WINDOW(3);
b6659824
AV		 406 config = inl(ioaddr + Wn3_Config);
407 lp->default_media = (config & Xcvr) >> Xcvr_shift;
408 lp->autoselect = config & Autoselect ? 1 : 0;
1da177e4
LT		 409 }
410
411 init_timer(&lp->media);
412
413 {
414 int phy;
415
416 /* Roadrunner only: Turn on the MII transceiver */
417 outw(0x8040, ioaddr + Wn3_Options);
418 mdelay(1);
419 outw(0xc040, ioaddr + Wn3_Options);
420 tc574_wait_for_completion(dev, TxReset);
421 tc574_wait_for_completion(dev, RxReset);
422 mdelay(1);
423 outw(0x8040, ioaddr + Wn3_Options);
424
425 EL3WINDOW(4);
426 for (phy = 1; phy <= 32; phy++) {
427 int mii_status;
428 mdio_sync(ioaddr, 32);
429 mii_status = mdio_read(ioaddr, phy & 0x1f, 1);
430 if (mii_status != 0xffff) {
431 lp->phys = phy & 0x1f;
432 DEBUG(0, " MII transceiver at index %d, status %x.\n",
433 phy, mii_status);
434 if ((mii_status & 0x0040) == 0)
435 mii_preamble_required = 1;
436 break;
437 }
438 }
439 if (phy > 32) {
440 printk(KERN_NOTICE " No MII transceivers found!\n");
441 goto failed;
442 }
443 i = mdio_read(ioaddr, lp->phys, 16) | 0x40;
444 mdio_write(ioaddr, lp->phys, 16, i);
445 lp->advertising = mdio_read(ioaddr, lp->phys, 4);
446 if (full_duplex) {
447 /* Only advertise the FD media types. */
448 lp->advertising &= ~0x02a0;
449 mdio_write(ioaddr, lp->phys, 4, lp->advertising);
450 }
451 }
452
fd238232 453 link->dev_node = &lp->node;
fba395ee 454 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1da177e4
LT		 455
456 if (register_netdev(dev) != 0) {
457 printk(KERN_NOTICE "3c574_cs: register_netdev() failed\n");
fd238232 458 link->dev_node = NULL;
1da177e4
LT		 459 goto failed;
460 }
461
462 strcpy(lp->node.dev_name, dev->name);
463
0795af57 464 printk(KERN_INFO "%s: %s at io %#3lx, irq %d, "
e174961c 465 "hw_addr %pM.\n",
0795af57 466 dev->name, cardname, dev->base_addr, dev->irq,
e174961c 467 dev->dev_addr);
1da177e4 468 printk(" %dK FIFO split %s Rx:Tx, %sMII interface.\n",
b6659824
AV		 469 8 << config & Ram_size,
470 ram_split[(config & Ram_split) >> Ram_split_shift],
471 config & Autoselect ? "autoselect " : "");
1da177e4 472
15b99ac1 473 return 0;
1da177e4
LT		 474
475cs_failed:
fba395ee 476 cs_error(link, last_fn, last_ret);
1da177e4
LT		 477failed:
478 tc574_release(link);
15b99ac1 479 return -ENODEV;
1da177e4
LT		 480
481} /* tc574_config */
482
483/*
484 After a card is removed, tc574_release() will unregister the net
485 device, and release the PCMCIA configuration. If the device is
486 still open, this will be postponed until it is closed.
487*/
488
fba395ee 489static void tc574_release(struct pcmcia_device *link)
1da177e4 490{
fba395ee 491 pcmcia_disable_device(link);
1da177e4
LT		 492}
493
fba395ee 494static int tc574_suspend(struct pcmcia_device *link)
98e4c28b 495{
98e4c28b
DB		 496 struct net_device *dev = link->priv;
497
e2d40963 498 if (link->open)
8661bb5b 499 netif_device_detach(dev);
98e4c28b
DB		 500
501 return 0;
502}
503
fba395ee 504static int tc574_resume(struct pcmcia_device *link)
98e4c28b 505{
98e4c28b
DB		 506 struct net_device *dev = link->priv;
507
e2d40963 508 if (link->open) {
8661bb5b
DB		 509 tc574_reset(dev);
510 netif_device_attach(dev);
98e4c28b
DB		 511 }
512
513 return 0;
514}
515
1da177e4
LT		 516static void dump_status(struct net_device *dev)
517{
906da809 518 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 519 EL3WINDOW(1);
520 printk(KERN_INFO " irq status %04x, rx status %04x, tx status "
521 "%02x, tx free %04x\n", inw(ioaddr+EL3_STATUS),
522 inw(ioaddr+RxStatus), inb(ioaddr+TxStatus),
523 inw(ioaddr+TxFree));
524 EL3WINDOW(4);
525 printk(KERN_INFO " diagnostics: fifo %04x net %04x ethernet %04x"
526 " media %04x\n", inw(ioaddr+0x04), inw(ioaddr+0x06),
527 inw(ioaddr+0x08), inw(ioaddr+0x0a));
528 EL3WINDOW(1);
529}
530
531/*
532 Use this for commands that may take time to finish
533*/
534static void tc574_wait_for_completion(struct net_device *dev, int cmd)
535{
536 int i = 1500;
537 outw(cmd, dev->base_addr + EL3_CMD);
538 while (--i > 0)
539 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
540 if (i == 0)
541 printk(KERN_NOTICE "%s: command 0x%04x did not complete!\n", dev->name, cmd);
542}
543
544/* Read a word from the EEPROM using the regular EEPROM access register.
545 Assume that we are in register window zero.
546 */
906da809 547static unsigned short read_eeprom(unsigned int ioaddr, int index)
1da177e4
LT		 548{
549 int timer;
550 outw(EEPROM_Read + index, ioaddr + Wn0EepromCmd);
551 /* Pause for at least 162 usec for the read to take place. */
552 for (timer = 1620; timer >= 0; timer--) {
553 if ((inw(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
554 break;
555 }
556 return inw(ioaddr + Wn0EepromData);
557}
558
559/* MII transceiver control section.
560 Read and write the MII registers using software-generated serial
561 MDIO protocol. See the MII specifications or DP83840A data sheet
562 for details.
563 The maxium data clock rate is 2.5 Mhz. The timing is easily met by the
564 slow PC card interface. */
565
566#define MDIO_SHIFT_CLK 0x01
567#define MDIO_DIR_WRITE 0x04
568#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
569#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
570#define MDIO_DATA_READ 0x02
571#define MDIO_ENB_IN 0x00
572
573/* Generate the preamble required for initial synchronization and
574 a few older transceivers. */
906da809 575static void mdio_sync(unsigned int ioaddr, int bits)
1da177e4 576{
906da809 577 unsigned int mdio_addr = ioaddr + Wn4_PhysicalMgmt;
1da177e4
LT		 578
579 /* Establish sync by sending at least 32 logic ones. */
580 while (-- bits >= 0) {
581 outw(MDIO_DATA_WRITE1, mdio_addr);
582 outw(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
583 }
584}
585
906da809 586static int mdio_read(unsigned int ioaddr, int phy_id, int location)
1da177e4
LT		 587{
588 int i;
589 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
590 unsigned int retval = 0;
906da809 591 unsigned int mdio_addr = ioaddr + Wn4_PhysicalMgmt;
1da177e4
LT		 592
593 if (mii_preamble_required)
594 mdio_sync(ioaddr, 32);
595
596 /* Shift the read command bits out. */
597 for (i = 14; i >= 0; i--) {
598 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
599 outw(dataval, mdio_addr);
600 outw(dataval | MDIO_SHIFT_CLK, mdio_addr);
601 }
602 /* Read the two transition, 16 data, and wire-idle bits. */
603 for (i = 19; i > 0; i--) {
604 outw(MDIO_ENB_IN, mdio_addr);
605 retval = (retval << 1) | ((inw(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
606 outw(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
607 }
608 return (retval>>1) & 0xffff;
609}
610
906da809 611static void mdio_write(unsigned int ioaddr, int phy_id, int location, int value)
1da177e4
LT		 612{
613 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
906da809 614 unsigned int mdio_addr = ioaddr + Wn4_PhysicalMgmt;
1da177e4
LT		 615 int i;
616
617 if (mii_preamble_required)
618 mdio_sync(ioaddr, 32);
619
620 /* Shift the command bits out. */
621 for (i = 31; i >= 0; i--) {
622 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
623 outw(dataval, mdio_addr);
624 outw(dataval | MDIO_SHIFT_CLK, mdio_addr);
625 }
626 /* Leave the interface idle. */
627 for (i = 1; i >= 0; i--) {
628 outw(MDIO_ENB_IN, mdio_addr);
629 outw(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
630 }
631
632 return;
633}
634
635/* Reset and restore all of the 3c574 registers. */
636static void tc574_reset(struct net_device *dev)
637{
638 struct el3_private *lp = netdev_priv(dev);
639 int i;
906da809 640 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 641 unsigned long flags;
642
643 tc574_wait_for_completion(dev, TotalReset|0x10);
644
645 spin_lock_irqsave(&lp->window_lock, flags);
646 /* Clear any transactions in progress. */
647 outw(0, ioaddr + RunnerWrCtrl);
648 outw(0, ioaddr + RunnerRdCtrl);
649
650 /* Set the station address and mask. */
651 EL3WINDOW(2);
652 for (i = 0; i < 6; i++)
653 outb(dev->dev_addr[i], ioaddr + i);
654 for (; i < 12; i+=2)
655 outw(0, ioaddr + i);
656
657 /* Reset config options */
658 EL3WINDOW(3);
659 outb((dev->mtu > 1500 ? 0x40 : 0), ioaddr + Wn3_MAC_Ctrl);
660 outl((lp->autoselect ? 0x01000000 : 0) | 0x0062001b,
661 ioaddr + Wn3_Config);
662 /* Roadrunner only: Turn on the MII transceiver. */
663 outw(0x8040, ioaddr + Wn3_Options);
664 mdelay(1);
665 outw(0xc040, ioaddr + Wn3_Options);
666 EL3WINDOW(1);
667 spin_unlock_irqrestore(&lp->window_lock, flags);
668
669 tc574_wait_for_completion(dev, TxReset);
670 tc574_wait_for_completion(dev, RxReset);
671 mdelay(1);
672 spin_lock_irqsave(&lp->window_lock, flags);
673 EL3WINDOW(3);
674 outw(0x8040, ioaddr + Wn3_Options);
675
676 /* Switch to the stats window, and clear all stats by reading. */
677 outw(StatsDisable, ioaddr + EL3_CMD);
678 EL3WINDOW(6);
679 for (i = 0; i < 10; i++)
680 inb(ioaddr + i);
681 inw(ioaddr + 10);
682 inw(ioaddr + 12);
683 EL3WINDOW(4);
684 inb(ioaddr + 12);
685 inb(ioaddr + 13);
686
687 /* .. enable any extra statistics bits.. */
688 outw(0x0040, ioaddr + Wn4_NetDiag);
689
690 EL3WINDOW(1);
691 spin_unlock_irqrestore(&lp->window_lock, flags);
692
693 /* .. re-sync MII and re-fill what NWay is advertising. */
694 mdio_sync(ioaddr, 32);
695 mdio_write(ioaddr, lp->phys, 4, lp->advertising);
696 if (!auto_polarity) {
697 /* works for TDK 78Q2120 series MII's */
1569d9e8 698 i = mdio_read(ioaddr, lp->phys, 16) | 0x20;
1da177e4
LT		 699 mdio_write(ioaddr, lp->phys, 16, i);
700 }
701
702 spin_lock_irqsave(&lp->window_lock, flags);
703 /* Switch to register set 1 for normal use, just for TxFree. */
704 set_rx_mode(dev);
705 spin_unlock_irqrestore(&lp->window_lock, flags);
706 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
707 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
708 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
709 /* Allow status bits to be seen. */
710 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
711 /* Ack all pending events, and set active indicator mask. */
712 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
713 ioaddr + EL3_CMD);
714 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
715 | AdapterFailure | RxEarly, ioaddr + EL3_CMD);
716}
717
718static int el3_open(struct net_device *dev)
719{
720 struct el3_private *lp = netdev_priv(dev);
fba395ee 721 struct pcmcia_device *link = lp->p_dev;
1da177e4 722
9940ec36 723 if (!pcmcia_dev_present(link))
1da177e4
LT		 724 return -ENODEV;
725
726 link->open++;
727 netif_start_queue(dev);
728
729 tc574_reset(dev);
730 lp->media.function = &media_check;
731 lp->media.data = (unsigned long) dev;
732 lp->media.expires = jiffies + HZ;
733 add_timer(&lp->media);
734
735 DEBUG(2, "%s: opened, status %4.4x.\n",
736 dev->name, inw(dev->base_addr + EL3_STATUS));
737
738 return 0;
739}
740
741static void el3_tx_timeout(struct net_device *dev)
742{
906da809 743 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 744
745 printk(KERN_NOTICE "%s: Transmit timed out!\n", dev->name);
746 dump_status(dev);
2e8d31d5 747 dev->stats.tx_errors++;
1da177e4
LT		 748 dev->trans_start = jiffies;
749 /* Issue TX_RESET and TX_START commands. */
750 tc574_wait_for_completion(dev, TxReset);
751 outw(TxEnable, ioaddr + EL3_CMD);
752 netif_wake_queue(dev);
753}
754
755static void pop_tx_status(struct net_device *dev)
756{
906da809 757 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 758 int i;
759
760 /* Clear the Tx status stack. */
761 for (i = 32; i > 0; i--) {
762 u_char tx_status = inb(ioaddr + TxStatus);
763 if (!(tx_status & 0x84))
764 break;
765 /* reset transmitter on jabber error or underrun */
766 if (tx_status & 0x30)
767 tc574_wait_for_completion(dev, TxReset);
768 if (tx_status & 0x38) {
769 DEBUG(1, "%s: transmit error: status 0x%02x\n",
770 dev->name, tx_status);
771 outw(TxEnable, ioaddr + EL3_CMD);
2e8d31d5 772 dev->stats.tx_aborted_errors++;
1da177e4
LT		 773 }
774 outb(0x00, ioaddr + TxStatus); /* Pop the status stack. */
775 }
776}
777
778static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
779{
906da809 780 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 781 struct el3_private *lp = netdev_priv(dev);
782 unsigned long flags;
783
784 DEBUG(3, "%s: el3_start_xmit(length = %ld) called, "
785 "status %4.4x.\n", dev->name, (long)skb->len,
786 inw(ioaddr + EL3_STATUS));
787
788 spin_lock_irqsave(&lp->window_lock, flags);
789 outw(skb->len, ioaddr + TX_FIFO);
790 outw(0, ioaddr + TX_FIFO);
791 outsl(ioaddr + TX_FIFO, skb->data, (skb->len+3)>>2);
792
793 dev->trans_start = jiffies;
794
795 /* TxFree appears only in Window 1, not offset 0x1c. */
796 if (inw(ioaddr + TxFree) <= 1536) {
797 netif_stop_queue(dev);
798 /* Interrupt us when the FIFO has room for max-sized packet.
799 The threshold is in units of dwords. */
800 outw(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
801 }
802
803 pop_tx_status(dev);
804 spin_unlock_irqrestore(&lp->window_lock, flags);
805 dev_kfree_skb(skb);
806 return 0;
807}
808
809/* The EL3 interrupt handler. */
7d12e780 810static irqreturn_t el3_interrupt(int irq, void *dev_id)
1da177e4
LT		 811{
812 struct net_device *dev = (struct net_device *) dev_id;
813 struct el3_private *lp = netdev_priv(dev);
906da809 814 unsigned int ioaddr;
1da177e4
LT		 815 unsigned status;
816 int work_budget = max_interrupt_work;
817 int handled = 0;
818
819 if (!netif_device_present(dev))
820 return IRQ_NONE;
821 ioaddr = dev->base_addr;
822
823 DEBUG(3, "%s: interrupt, status %4.4x.\n",
824 dev->name, inw(ioaddr + EL3_STATUS));
825
826 spin_lock(&lp->window_lock);
827
828 while ((status = inw(ioaddr + EL3_STATUS)) &
829 (IntLatch | RxComplete | RxEarly | StatsFull)) {
830 if (!netif_device_present(dev) ||
831 ((status & 0xe000) != 0x2000)) {
832 DEBUG(1, "%s: Interrupt from dead card\n", dev->name);
833 break;
834 }
835
836 handled = 1;
837
838 if (status & RxComplete)
839 work_budget = el3_rx(dev, work_budget);
840
841 if (status & TxAvailable) {
842 DEBUG(3, " TX room bit was handled.\n");
843 /* There's room in the FIFO for a full-sized packet. */
844 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
845 netif_wake_queue(dev);
846 }
847
848 if (status & TxComplete)
849 pop_tx_status(dev);
850
851 if (status & (AdapterFailure | RxEarly | StatsFull)) {
852 /* Handle all uncommon interrupts. */
853 if (status & StatsFull)
854 update_stats(dev);
855 if (status & RxEarly) {
856 work_budget = el3_rx(dev, work_budget);
857 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
858 }
859 if (status & AdapterFailure) {
860 u16 fifo_diag;
861 EL3WINDOW(4);
862 fifo_diag = inw(ioaddr + Wn4_FIFODiag);
863 EL3WINDOW(1);
864 printk(KERN_NOTICE "%s: adapter failure, FIFO diagnostic"
865 " register %04x.\n", dev->name, fifo_diag);
866 if (fifo_diag & 0x0400) {
867 /* Tx overrun */
868 tc574_wait_for_completion(dev, TxReset);
869 outw(TxEnable, ioaddr + EL3_CMD);
870 }
871 if (fifo_diag & 0x2000) {
872 /* Rx underrun */
873 tc574_wait_for_completion(dev, RxReset);
874 set_rx_mode(dev);
875 outw(RxEnable, ioaddr + EL3_CMD);
876 }
877 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
878 }
879 }
880
881 if (--work_budget < 0) {
882 DEBUG(0, "%s: Too much work in interrupt, "
883 "status %4.4x.\n", dev->name, status);
884 /* Clear all interrupts */
885 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
886 break;
887 }
888 /* Acknowledge the IRQ. */
889 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
890 }
891
892 DEBUG(3, "%s: exiting interrupt, status %4.4x.\n",
893 dev->name, inw(ioaddr + EL3_STATUS));
894
895 spin_unlock(&lp->window_lock);
896 return IRQ_RETVAL(handled);
897}
898
899/*
900 This timer serves two purposes: to check for missed interrupts
901 (and as a last resort, poll the NIC for events), and to monitor
902 the MII, reporting changes in cable status.
903*/
904static void media_check(unsigned long arg)
905{
906 struct net_device *dev = (struct net_device *) arg;
907 struct el3_private *lp = netdev_priv(dev);
906da809 908 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 909 unsigned long flags;
910 unsigned short /* cable, */ media, partner;
911
912 if (!netif_device_present(dev))
913 goto reschedule;
914
915 /* Check for pending interrupt with expired latency timer: with
916 this, we can limp along even if the interrupt is blocked */
917 if ((inw(ioaddr + EL3_STATUS) & IntLatch) && (inb(ioaddr + Timer) == 0xff)) {
918 if (!lp->fast_poll)
919 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
e363d138 920 el3_interrupt(dev->irq, dev);
1da177e4
LT		 921 lp->fast_poll = HZ;
922 }
923 if (lp->fast_poll) {
924 lp->fast_poll--;
925 lp->media.expires = jiffies + 2*HZ/100;
926 add_timer(&lp->media);
927 return;
928 }
929
930 spin_lock_irqsave(&lp->window_lock, flags);
931 EL3WINDOW(4);
932 media = mdio_read(ioaddr, lp->phys, 1);
933 partner = mdio_read(ioaddr, lp->phys, 5);
934 EL3WINDOW(1);
935
936 if (media != lp->media_status) {
937 if ((media ^ lp->media_status) & 0x0004)
938 printk(KERN_INFO "%s: %s link beat\n", dev->name,
939 (lp->media_status & 0x0004) ? "lost" : "found");
940 if ((media ^ lp->media_status) & 0x0020) {
941 lp->partner = 0;
942 if (lp->media_status & 0x0020) {
943 printk(KERN_INFO "%s: autonegotiation restarted\n",
944 dev->name);
945 } else if (partner) {
946 partner &= lp->advertising;
947 lp->partner = partner;
948 printk(KERN_INFO "%s: autonegotiation complete: "
949 "%sbaseT-%cD selected\n", dev->name,
950 ((partner & 0x0180) ? "100" : "10"),
951 ((partner & 0x0140) ? 'F' : 'H'));
952 } else {
953 printk(KERN_INFO "%s: link partner did not autonegotiate\n",
954 dev->name);
955 }
956
957 EL3WINDOW(3);
958 outb((partner & 0x0140 ? 0x20 : 0) |
959 (dev->mtu > 1500 ? 0x40 : 0), ioaddr + Wn3_MAC_Ctrl);
960 EL3WINDOW(1);
961
962 }
963 if (media & 0x0010)
964 printk(KERN_INFO "%s: remote fault detected\n",
965 dev->name);
966 if (media & 0x0002)
967 printk(KERN_INFO "%s: jabber detected\n", dev->name);
968 lp->media_status = media;
969 }
970 spin_unlock_irqrestore(&lp->window_lock, flags);
971
972reschedule:
973 lp->media.expires = jiffies + HZ;
974 add_timer(&lp->media);
975}
976
977static struct net_device_stats *el3_get_stats(struct net_device *dev)
978{
979 struct el3_private *lp = netdev_priv(dev);
980
981 if (netif_device_present(dev)) {
982 unsigned long flags;
983 spin_lock_irqsave(&lp->window_lock, flags);
984 update_stats(dev);
985 spin_unlock_irqrestore(&lp->window_lock, flags);
986 }
2e8d31d5 987 return &dev->stats;
1da177e4
LT		 988}
989
990/* Update statistics.
991 Suprisingly this need not be run single-threaded, but it effectively is.
992 The counters clear when read, so the adds must merely be atomic.
993 */
994static void update_stats(struct net_device *dev)
995{
906da809 996 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 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);
2e8d31d5
PZ		 1007 dev->stats.tx_carrier_errors += inb(ioaddr + 0);
1008 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
1da177e4 1009 /* Multiple collisions. */ inb(ioaddr + 2);
2e8d31d5
PZ		 1010 dev->stats.collisions += inb(ioaddr + 3);
1011 dev->stats.tx_window_errors += inb(ioaddr + 4);
1012 dev->stats.rx_fifo_errors += inb(ioaddr + 5);
1013 dev->stats.tx_packets += inb(ioaddr + 6);
1da177e4 1014 up = inb(ioaddr + 9);
2e8d31d5 1015 dev->stats.tx_packets += (up&0x30) << 4;
1da177e4
LT		 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
2e8d31d5 1025 dev->stats.tx_bytes += tx + ((up & 0xf0) << 12);
1da177e4
LT		 1026
1027 EL3WINDOW(1);
1028}
1029
1030static int el3_rx(struct net_device *dev, int worklimit)
1031{
906da809 1032 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1033 short rx_status;
1034
1035 DEBUG(3, "%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n",
1036 dev->name, inw(ioaddr+EL3_STATUS), inw(ioaddr+RxStatus));
1037 while (!((rx_status = inw(ioaddr + RxStatus)) & 0x8000) &&
b9bdcd9b
RK		 1038 worklimit > 0) {
1039 worklimit--;
1da177e4
LT		 1040 if (rx_status & 0x4000) { /* Error, update stats. */
1041 short error = rx_status & 0x3800;
2e8d31d5 1042 dev->stats.rx_errors++;
1da177e4 1043 switch (error) {
2e8d31d5
PZ		 1044 case 0x0000: dev->stats.rx_over_errors++; break;
1045 case 0x0800: dev->stats.rx_length_errors++; break;
1046 case 0x1000: dev->stats.rx_frame_errors++; break;
1047 case 0x1800: dev->stats.rx_length_errors++; break;
1048 case 0x2000: dev->stats.rx_frame_errors++; break;
1049 case 0x2800: dev->stats.rx_crc_errors++; break;
1da177e4
LT		 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);
2e8d31d5
PZ		 1065 dev->stats.rx_packets++;
1066 dev->stats.rx_bytes += pkt_len;
1da177e4
LT		 1067 } else {
1068 DEBUG(1, "%s: couldn't allocate a sk_buff of"
1069 " size %d.\n", dev->name, pkt_len);
2e8d31d5 1070 dev->stats.rx_dropped++;
1da177e4
LT		 1071 }
1072 }
1073 tc574_wait_for_completion(dev, RxDiscard);
1074 }
1075
1076 return worklimit;
1077}
1078
1079static void netdev_get_drvinfo(struct net_device *dev,
1080 struct ethtool_drvinfo *info)
1081{
1082 strcpy(info->driver, "3c574_cs");
1083}
1084
7282d491 1085static const struct ethtool_ops netdev_ethtool_ops = {
1da177e4
LT		 1086 .get_drvinfo = netdev_get_drvinfo,
1087};
1088
1089/* Provide ioctl() calls to examine the MII xcvr state. */
1090static int el3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1091{
1092 struct el3_private *lp = netdev_priv(dev);
906da809 1093 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1094 u16 *data = (u16 *)&rq->ifr_ifru;
1095 int phy = lp->phys & 0x1f;
1096
1097 DEBUG(2, "%s: In ioct(%-.6s, %#4.4x) %4.4x %4.4x %4.4x %4.4x.\n",
1098 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
1099 data[0], data[1], data[2], data[3]);
1100
1101 switch(cmd) {
1102 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
1103 data[0] = phy;
1104 case SIOCGMIIREG: /* Read the specified MII register. */
1105 {
1106 int saved_window;
1107 unsigned long flags;
1108
1109 spin_lock_irqsave(&lp->window_lock, flags);
1110 saved_window = inw(ioaddr + EL3_CMD) >> 13;
1111 EL3WINDOW(4);
1112 data[3] = mdio_read(ioaddr, data[0] & 0x1f, data[1] & 0x1f);
1113 EL3WINDOW(saved_window);
1114 spin_unlock_irqrestore(&lp->window_lock, flags);
1115 return 0;
1116 }
1117 case SIOCSMIIREG: /* Write the specified MII register */
1118 {
1119 int saved_window;
1120 unsigned long flags;
1121
1122 if (!capable(CAP_NET_ADMIN))
1123 return -EPERM;
1124 spin_lock_irqsave(&lp->window_lock, flags);
1125 saved_window = inw(ioaddr + EL3_CMD) >> 13;
1126 EL3WINDOW(4);
1127 mdio_write(ioaddr, data[0] & 0x1f, data[1] & 0x1f, data[2]);
1128 EL3WINDOW(saved_window);
1129 spin_unlock_irqrestore(&lp->window_lock, flags);
1130 return 0;
1131 }
1132 default:
1133 return -EOPNOTSUPP;
1134 }
1135}
1136
1137/* The Odie chip has a 64 bin multicast filter, but the bit layout is not
1138 documented. Until it is we revert to receiving all multicast frames when
1139 any multicast reception is desired.
1140 Note: My other drivers emit a log message whenever promiscuous mode is
1141 entered to help detect password sniffers. This is less desirable on
1142 typical PC card machines, so we omit the message.
1143 */
1144
1145static void set_rx_mode(struct net_device *dev)
1146{
906da809 1147 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1148
1149 if (dev->flags & IFF_PROMISC)
1150 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
1151 ioaddr + EL3_CMD);
1152 else if (dev->mc_count || (dev->flags & IFF_ALLMULTI))
1153 outw(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
1154 else
1155 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1156}
1157
1158static int el3_close(struct net_device *dev)
1159{
906da809 1160 unsigned int ioaddr = dev->base_addr;
1da177e4 1161 struct el3_private *lp = netdev_priv(dev);
fba395ee 1162 struct pcmcia_device *link = lp->p_dev;
1da177e4
LT		 1163
1164 DEBUG(2, "%s: shutting down ethercard.\n", dev->name);
1165
9940ec36 1166 if (pcmcia_dev_present(link)) {
1da177e4
LT		 1167 unsigned long flags;
1168
1169 /* Turn off statistics ASAP. We update lp->stats below. */
1170 outw(StatsDisable, ioaddr + EL3_CMD);
1171
1172 /* Disable the receiver and transmitter. */
1173 outw(RxDisable, ioaddr + EL3_CMD);
1174 outw(TxDisable, ioaddr + EL3_CMD);
1175
1176 /* Note: Switching to window 0 may disable the IRQ. */
1177 EL3WINDOW(0);
1178 spin_lock_irqsave(&lp->window_lock, flags);
1179 update_stats(dev);
1180 spin_unlock_irqrestore(&lp->window_lock, flags);
b9a6eaff
DR		 1181
1182 /* force interrupts off */
1183 outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
1da177e4
LT		 1184 }
1185
1186 link->open--;
1187 netif_stop_queue(dev);
1188 del_timer_sync(&lp->media);
1189
1190 return 0;
1191}
1192
270b6e94
DB		 1193static struct pcmcia_device_id tc574_ids[] = {
1194 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0574),
1195 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0556, "3CCFEM556.cis"),
1196 PCMCIA_DEVICE_NULL,
1197};
1198MODULE_DEVICE_TABLE(pcmcia, tc574_ids);
1199
1da177e4
LT		 1200static struct pcmcia_driver tc574_driver = {
1201 .owner = THIS_MODULE,
1202 .drv = {
1203 .name = "3c574_cs",
1204 },
15b99ac1 1205 .probe = tc574_probe,
cc3b4866 1206 .remove = tc574_detach,
270b6e94 1207 .id_table = tc574_ids,
98e4c28b
DB		 1208 .suspend = tc574_suspend,
1209 .resume = tc574_resume,
1da177e4
LT		 1210};
1211
1212static int __init init_tc574(void)
1213{
1214 return pcmcia_register_driver(&tc574_driver);
1215}
1216
1217static void __exit exit_tc574(void)
1218{
1219 pcmcia_unregister_driver(&tc574_driver);
1da177e4
LT		 1220}
1221
1222module_init(init_tc574);
1223module_exit(exit_tc574);
Linux kernel - Deliverables
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