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[PATCH] pcmcia: remove dev_link_t and client_handle_t indirection
[deliverable/linux.git] / drivers / net / pcmcia / fmvj18x_cs.c
1 /*======================================================================
2 fmvj18x_cs.c 2.8 2002/03/23
3
4 A fmvj18x (and its compatibles) PCMCIA client driver
5
6 Contributed by Shingo Fujimoto, shingo@flab.fujitsu.co.jp
7
8 TDK LAK-CD021 and CONTEC C-NET(PC)C support added by
9 Nobuhiro Katayama, kata-n@po.iijnet.or.jp
10
11 The PCMCIA client code is based on code written by David Hinds.
12 Network code is based on the "FMV-18x driver" by Yutaka TAMIYA
13 but is actually largely Donald Becker's AT1700 driver, which
14 carries the following attribution:
15
16 Written 1993-94 by Donald Becker.
17
18 Copyright 1993 United States Government as represented by the
19 Director, National Security Agency.
20
21 This software may be used and distributed according to the terms
22 of the GNU General Public License, incorporated herein by reference.
23
24 The author may be reached as becker@scyld.com, or C/O
25 Scyld Computing Corporation
26 410 Severn Ave., Suite 210
27 Annapolis MD 21403
28
29 ======================================================================*/
30
31 #define DRV_NAME "fmvj18x_cs"
32 #define DRV_VERSION "2.8"
33
34 #include <linux/module.h>
35 #include <linux/kernel.h>
36 #include <linux/init.h>
37 #include <linux/ptrace.h>
38 #include <linux/slab.h>
39 #include <linux/string.h>
40 #include <linux/timer.h>
41 #include <linux/interrupt.h>
42 #include <linux/in.h>
43 #include <linux/delay.h>
44 #include <linux/ethtool.h>
45 #include <linux/netdevice.h>
46 #include <linux/etherdevice.h>
47 #include <linux/skbuff.h>
48 #include <linux/if_arp.h>
49 #include <linux/ioport.h>
50 #include <linux/crc32.h>
51
52 #include <pcmcia/cs_types.h>
53 #include <pcmcia/cs.h>
54 #include <pcmcia/cistpl.h>
55 #include <pcmcia/ciscode.h>
56 #include <pcmcia/ds.h>
57
58 #include <asm/uaccess.h>
59 #include <asm/io.h>
60 #include <asm/system.h>
61
62 /*====================================================================*/
63
64 /* Module parameters */
65
66 MODULE_DESCRIPTION("fmvj18x and compatible PCMCIA ethernet driver");
67 MODULE_LICENSE("GPL");
68
69 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
70
71 /* SRAM configuration */
72 /* 0:4KB*2 TX buffer else:8KB*2 TX buffer */
73 INT_MODULE_PARM(sram_config, 0);
74
75 #ifdef PCMCIA_DEBUG
76 INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
77 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
78 static char *version = DRV_NAME ".c " DRV_VERSION " 2002/03/23";
79 #else
80 #define DEBUG(n, args...)
81 #endif
82
83 /*====================================================================*/
84 /*
85 PCMCIA event handlers
86 */
87 static void fmvj18x_config(struct pcmcia_device *link);
88 static int fmvj18x_get_hwinfo(struct pcmcia_device *link, u_char *node_id);
89 static int fmvj18x_setup_mfc(struct pcmcia_device *link);
90 static void fmvj18x_release(struct pcmcia_device *link);
91 static void fmvj18x_detach(struct pcmcia_device *p_dev);
92
93 /*
94 LAN controller(MBH86960A) specific routines
95 */
96 static int fjn_config(struct net_device *dev, struct ifmap *map);
97 static int fjn_open(struct net_device *dev);
98 static int fjn_close(struct net_device *dev);
99 static int fjn_start_xmit(struct sk_buff *skb, struct net_device *dev);
100 static irqreturn_t fjn_interrupt(int irq, void *dev_id, struct pt_regs *regs);
101 static void fjn_rx(struct net_device *dev);
102 static void fjn_reset(struct net_device *dev);
103 static struct net_device_stats *fjn_get_stats(struct net_device *dev);
104 static void set_rx_mode(struct net_device *dev);
105 static void fjn_tx_timeout(struct net_device *dev);
106 static struct ethtool_ops netdev_ethtool_ops;
107
108 /*
109 card type
110 */
111 typedef enum { MBH10302, MBH10304, TDK, CONTEC, LA501, UNGERMANN,
112 XXX10304
113 } cardtype_t;
114
115 /*
116 driver specific data structure
117 */
118 typedef struct local_info_t {
119 struct pcmcia_device *p_dev;
120 dev_node_t node;
121 struct net_device_stats stats;
122 long open_time;
123 uint tx_started:1;
124 uint tx_queue;
125 u_short tx_queue_len;
126 cardtype_t cardtype;
127 u_short sent;
128 } local_info_t;
129
130 #define MC_FILTERBREAK 64
131
132 /*====================================================================*/
133 /*
134 ioport offset from the base address
135 */
136 #define TX_STATUS 0 /* transmit status register */
137 #define RX_STATUS 1 /* receive status register */
138 #define TX_INTR 2 /* transmit interrupt mask register */
139 #define RX_INTR 3 /* receive interrupt mask register */
140 #define TX_MODE 4 /* transmit mode register */
141 #define RX_MODE 5 /* receive mode register */
142 #define CONFIG_0 6 /* configuration register 0 */
143 #define CONFIG_1 7 /* configuration register 1 */
144
145 #define NODE_ID 8 /* node ID register (bank 0) */
146 #define MAR_ADR 8 /* multicast address registers (bank 1) */
147
148 #define DATAPORT 8 /* buffer mem port registers (bank 2) */
149 #define TX_START 10 /* transmit start register */
150 #define COL_CTRL 11 /* 16 collision control register */
151 #define BMPR12 12 /* reserved */
152 #define BMPR13 13 /* reserved */
153 #define RX_SKIP 14 /* skip received packet register */
154
155 #define LAN_CTRL 16 /* LAN card control register */
156
157 #define MAC_ID 0x1a /* hardware address */
158 #define UNGERMANN_MAC_ID 0x18 /* UNGERMANN-BASS hardware address */
159
160 /*
161 control bits
162 */
163 #define ENA_TMT_OK 0x80
164 #define ENA_TMT_REC 0x20
165 #define ENA_COL 0x04
166 #define ENA_16_COL 0x02
167 #define ENA_TBUS_ERR 0x01
168
169 #define ENA_PKT_RDY 0x80
170 #define ENA_BUS_ERR 0x40
171 #define ENA_LEN_ERR 0x08
172 #define ENA_ALG_ERR 0x04
173 #define ENA_CRC_ERR 0x02
174 #define ENA_OVR_FLO 0x01
175
176 /* flags */
177 #define F_TMT_RDY 0x80 /* can accept new packet */
178 #define F_NET_BSY 0x40 /* carrier is detected */
179 #define F_TMT_OK 0x20 /* send packet successfully */
180 #define F_SRT_PKT 0x10 /* short packet error */
181 #define F_COL_ERR 0x04 /* collision error */
182 #define F_16_COL 0x02 /* 16 collision error */
183 #define F_TBUS_ERR 0x01 /* bus read error */
184
185 #define F_PKT_RDY 0x80 /* packet(s) in buffer */
186 #define F_BUS_ERR 0x40 /* bus read error */
187 #define F_LEN_ERR 0x08 /* short packet */
188 #define F_ALG_ERR 0x04 /* frame error */
189 #define F_CRC_ERR 0x02 /* CRC error */
190 #define F_OVR_FLO 0x01 /* overflow error */
191
192 #define F_BUF_EMP 0x40 /* receive buffer is empty */
193
194 #define F_SKP_PKT 0x05 /* drop packet in buffer */
195
196 /* default bitmaps */
197 #define D_TX_INTR ( ENA_TMT_OK )
198 #define D_RX_INTR ( ENA_PKT_RDY | ENA_LEN_ERR \
199 | ENA_ALG_ERR | ENA_CRC_ERR | ENA_OVR_FLO )
200 #define TX_STAT_M ( F_TMT_RDY )
201 #define RX_STAT_M ( F_PKT_RDY | F_LEN_ERR \
202 | F_ALG_ERR | F_CRC_ERR | F_OVR_FLO )
203
204 /* commands */
205 #define D_TX_MODE 0x06 /* no tests, detect carrier */
206 #define ID_MATCHED 0x02 /* (RX_MODE) */
207 #define RECV_ALL 0x03 /* (RX_MODE) */
208 #define CONFIG0_DFL 0x5a /* 16bit bus, 4K x 2 Tx queues */
209 #define CONFIG0_DFL_1 0x5e /* 16bit bus, 8K x 2 Tx queues */
210 #define CONFIG0_RST 0xda /* Data Link Controller off (CONFIG_0) */
211 #define CONFIG0_RST_1 0xde /* Data Link Controller off (CONFIG_0) */
212 #define BANK_0 0xa0 /* bank 0 (CONFIG_1) */
213 #define BANK_1 0xa4 /* bank 1 (CONFIG_1) */
214 #define BANK_2 0xa8 /* bank 2 (CONFIG_1) */
215 #define CHIP_OFF 0x80 /* contrl chip power off (CONFIG_1) */
216 #define DO_TX 0x80 /* do transmit packet */
217 #define SEND_PKT 0x81 /* send a packet */
218 #define AUTO_MODE 0x07 /* Auto skip packet on 16 col detected */
219 #define MANU_MODE 0x03 /* Stop and skip packet on 16 col */
220 #define TDK_AUTO_MODE 0x47 /* Auto skip packet on 16 col detected */
221 #define TDK_MANU_MODE 0x43 /* Stop and skip packet on 16 col */
222 #define INTR_OFF 0x0d /* LAN controller ignores interrupts */
223 #define INTR_ON 0x1d /* LAN controller will catch interrupts */
224
225 #define TX_TIMEOUT ((400*HZ)/1000)
226
227 #define BANK_0U 0x20 /* bank 0 (CONFIG_1) */
228 #define BANK_1U 0x24 /* bank 1 (CONFIG_1) */
229 #define BANK_2U 0x28 /* bank 2 (CONFIG_1) */
230
231 static int fmvj18x_attach(struct pcmcia_device *link)
232 {
233 local_info_t *lp;
234 struct net_device *dev;
235
236 DEBUG(0, "fmvj18x_attach()\n");
237
238 /* Make up a FMVJ18x specific data structure */
239 dev = alloc_etherdev(sizeof(local_info_t));
240 if (!dev)
241 return -ENOMEM;
242 lp = netdev_priv(dev);
243 link->priv = dev;
244 lp->p_dev = link;
245
246 /* The io structure describes IO port mapping */
247 link->io.NumPorts1 = 32;
248 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
249 link->io.IOAddrLines = 5;
250
251 /* Interrupt setup */
252 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
253 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
254 link->irq.Handler = &fjn_interrupt;
255 link->irq.Instance = dev;
256
257 /* General socket configuration */
258 link->conf.Attributes = CONF_ENABLE_IRQ;
259 link->conf.IntType = INT_MEMORY_AND_IO;
260
261 /* The FMVJ18x specific entries in the device structure. */
262 SET_MODULE_OWNER(dev);
263 dev->hard_start_xmit = &fjn_start_xmit;
264 dev->set_config = &fjn_config;
265 dev->get_stats = &fjn_get_stats;
266 dev->set_multicast_list = &set_rx_mode;
267 dev->open = &fjn_open;
268 dev->stop = &fjn_close;
269 #ifdef HAVE_TX_TIMEOUT
270 dev->tx_timeout = fjn_tx_timeout;
271 dev->watchdog_timeo = TX_TIMEOUT;
272 #endif
273 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
274
275 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
276 fmvj18x_config(link);
277
278 return 0;
279 } /* fmvj18x_attach */
280
281 /*====================================================================*/
282
283 static void fmvj18x_detach(struct pcmcia_device *link)
284 {
285 struct net_device *dev = link->priv;
286
287 DEBUG(0, "fmvj18x_detach(0x%p)\n", link);
288
289 if (link->dev_node)
290 unregister_netdev(dev);
291
292 if (link->state & DEV_CONFIG)
293 fmvj18x_release(link);
294
295 free_netdev(dev);
296 } /* fmvj18x_detach */
297
298 /*====================================================================*/
299
300 #define CS_CHECK(fn, ret) \
301 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
302
303 static int mfc_try_io_port(struct pcmcia_device *link)
304 {
305 int i, ret;
306 static const kio_addr_t serial_base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
307
308 for (i = 0; i < 5; i++) {
309 link->io.BasePort2 = serial_base[i];
310 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
311 if (link->io.BasePort2 == 0) {
312 link->io.NumPorts2 = 0;
313 printk(KERN_NOTICE "fmvj18x_cs: out of resource for serial\n");
314 }
315 ret = pcmcia_request_io(link, &link->io);
316 if (ret == CS_SUCCESS) return ret;
317 }
318 return ret;
319 }
320
321 static int ungermann_try_io_port(struct pcmcia_device *link)
322 {
323 int ret;
324 kio_addr_t ioaddr;
325 /*
326 Ungermann-Bass Access/CARD accepts 0x300,0x320,0x340,0x360
327 0x380,0x3c0 only for ioport.
328 */
329 for (ioaddr = 0x300; ioaddr < 0x3e0; ioaddr += 0x20) {
330 link->io.BasePort1 = ioaddr;
331 ret = pcmcia_request_io(link, &link->io);
332 if (ret == CS_SUCCESS) {
333 /* calculate ConfigIndex value */
334 link->conf.ConfigIndex =
335 ((link->io.BasePort1 & 0x0f0) >> 3) | 0x22;
336 return ret;
337 }
338 }
339 return ret; /* RequestIO failed */
340 }
341
342 static void fmvj18x_config(struct pcmcia_device *link)
343 {
344 struct net_device *dev = link->priv;
345 local_info_t *lp = netdev_priv(dev);
346 tuple_t tuple;
347 cisparse_t parse;
348 u_short buf[32];
349 int i, last_fn, last_ret, ret;
350 kio_addr_t ioaddr;
351 cardtype_t cardtype;
352 char *card_name = "unknown";
353 u_char *node_id;
354
355 DEBUG(0, "fmvj18x_config(0x%p)\n", link);
356
357 /*
358 This reads the card's CONFIG tuple to find its configuration
359 registers.
360 */
361 tuple.DesiredTuple = CISTPL_CONFIG;
362 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
363 tuple.TupleData = (u_char *)buf;
364 tuple.TupleDataMax = 64;
365 tuple.TupleOffset = 0;
366 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
367 CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
368
369 /* Configure card */
370 link->state |= DEV_CONFIG;
371
372 link->conf.ConfigBase = parse.config.base;
373 link->conf.Present = parse.config.rmask[0];
374
375 tuple.DesiredTuple = CISTPL_FUNCE;
376 tuple.TupleOffset = 0;
377 if (pcmcia_get_first_tuple(link, &tuple) == CS_SUCCESS) {
378 /* Yes, I have CISTPL_FUNCE. Let's check CISTPL_MANFID */
379 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
380 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
381 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
382 CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
383 link->conf.ConfigIndex = parse.cftable_entry.index;
384 tuple.DesiredTuple = CISTPL_MANFID;
385 if (pcmcia_get_first_tuple(link, &tuple) == CS_SUCCESS)
386 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
387 else
388 buf[0] = 0xffff;
389 switch (le16_to_cpu(buf[0])) {
390 case MANFID_TDK:
391 cardtype = TDK;
392 if (le16_to_cpu(buf[1]) == PRODID_TDK_GN3410
393 || le16_to_cpu(buf[1]) == PRODID_TDK_NP9610
394 || le16_to_cpu(buf[1]) == PRODID_TDK_MN3200) {
395 /* MultiFunction Card */
396 link->conf.ConfigBase = 0x800;
397 link->conf.ConfigIndex = 0x47;
398 link->io.NumPorts2 = 8;
399 }
400 break;
401 case MANFID_CONTEC:
402 cardtype = CONTEC;
403 break;
404 case MANFID_FUJITSU:
405 if (le16_to_cpu(buf[1]) == PRODID_FUJITSU_MBH10302)
406 /* RATOC REX-5588/9822/4886's PRODID are 0004(=MBH10302),
407 but these are MBH10304 based card. */
408 cardtype = MBH10304;
409 else if (le16_to_cpu(buf[1]) == PRODID_FUJITSU_MBH10304)
410 cardtype = MBH10304;
411 else
412 cardtype = LA501;
413 break;
414 default:
415 cardtype = MBH10304;
416 }
417 } else {
418 /* old type card */
419 tuple.DesiredTuple = CISTPL_MANFID;
420 if (pcmcia_get_first_tuple(link, &tuple) == CS_SUCCESS)
421 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
422 else
423 buf[0] = 0xffff;
424 switch (le16_to_cpu(buf[0])) {
425 case MANFID_FUJITSU:
426 if (le16_to_cpu(buf[1]) == PRODID_FUJITSU_MBH10304) {
427 cardtype = XXX10304; /* MBH10304 with buggy CIS */
428 link->conf.ConfigIndex = 0x20;
429 } else {
430 cardtype = MBH10302; /* NextCom NC5310, etc. */
431 link->conf.ConfigIndex = 1;
432 }
433 break;
434 case MANFID_UNGERMANN:
435 cardtype = UNGERMANN;
436 break;
437 default:
438 cardtype = MBH10302;
439 link->conf.ConfigIndex = 1;
440 }
441 }
442
443 if (link->io.NumPorts2 != 0) {
444 link->irq.Attributes =
445 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
446 ret = mfc_try_io_port(link);
447 if (ret != CS_SUCCESS) goto cs_failed;
448 } else if (cardtype == UNGERMANN) {
449 ret = ungermann_try_io_port(link);
450 if (ret != CS_SUCCESS) goto cs_failed;
451 } else {
452 CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));
453 }
454 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
455 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
456 dev->irq = link->irq.AssignedIRQ;
457 dev->base_addr = link->io.BasePort1;
458
459 if (link->io.BasePort2 != 0)
460 fmvj18x_setup_mfc(link);
461
462 ioaddr = dev->base_addr;
463
464 /* Reset controller */
465 if (sram_config == 0)
466 outb(CONFIG0_RST, ioaddr + CONFIG_0);
467 else
468 outb(CONFIG0_RST_1, ioaddr + CONFIG_0);
469
470 /* Power On chip and select bank 0 */
471 if (cardtype == MBH10302)
472 outb(BANK_0, ioaddr + CONFIG_1);
473 else
474 outb(BANK_0U, ioaddr + CONFIG_1);
475
476 /* Set hardware address */
477 switch (cardtype) {
478 case MBH10304:
479 case TDK:
480 case LA501:
481 case CONTEC:
482 tuple.DesiredTuple = CISTPL_FUNCE;
483 tuple.TupleOffset = 0;
484 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
485 tuple.TupleOffset = 0;
486 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
487 if (cardtype == MBH10304) {
488 /* MBH10304's CIS_FUNCE is corrupted */
489 node_id = &(tuple.TupleData[5]);
490 card_name = "FMV-J182";
491 } else {
492 while (tuple.TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID ) {
493 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
494 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
495 }
496 node_id = &(tuple.TupleData[2]);
497 if( cardtype == TDK ) {
498 card_name = "TDK LAK-CD021";
499 } else if( cardtype == LA501 ) {
500 card_name = "LA501";
501 } else {
502 card_name = "C-NET(PC)C";
503 }
504 }
505 /* Read MACID from CIS */
506 for (i = 0; i < 6; i++)
507 dev->dev_addr[i] = node_id[i];
508 break;
509 case UNGERMANN:
510 /* Read MACID from register */
511 for (i = 0; i < 6; i++)
512 dev->dev_addr[i] = inb(ioaddr + UNGERMANN_MAC_ID + i);
513 card_name = "Access/CARD";
514 break;
515 case XXX10304:
516 /* Read MACID from Buggy CIS */
517 if (fmvj18x_get_hwinfo(link, tuple.TupleData) == -1) {
518 printk(KERN_NOTICE "fmvj18x_cs: unable to read hardware net address.\n");
519 goto failed;
520 }
521 for (i = 0 ; i < 6; i++) {
522 dev->dev_addr[i] = tuple.TupleData[i];
523 }
524 card_name = "FMV-J182";
525 break;
526 case MBH10302:
527 default:
528 /* Read MACID from register */
529 for (i = 0; i < 6; i++)
530 dev->dev_addr[i] = inb(ioaddr + MAC_ID + i);
531 card_name = "FMV-J181";
532 break;
533 }
534
535 lp->cardtype = cardtype;
536 link->dev_node = &lp->node;
537 link->state &= ~DEV_CONFIG_PENDING;
538 SET_NETDEV_DEV(dev, &handle_to_dev(link));
539
540 if (register_netdev(dev) != 0) {
541 printk(KERN_NOTICE "fmvj18x_cs: register_netdev() failed\n");
542 link->dev_node = NULL;
543 goto failed;
544 }
545
546 strcpy(lp->node.dev_name, dev->name);
547
548 /* print current configuration */
549 printk(KERN_INFO "%s: %s, sram %s, port %#3lx, irq %d, hw_addr ",
550 dev->name, card_name, sram_config == 0 ? "4K TX*2" : "8K TX*2",
551 dev->base_addr, dev->irq);
552 for (i = 0; i < 6; i++)
553 printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
554
555 return;
556
557 cs_failed:
558 /* All Card Services errors end up here */
559 cs_error(link, last_fn, last_ret);
560 failed:
561 fmvj18x_release(link);
562 link->state &= ~DEV_CONFIG_PENDING;
563
564 } /* fmvj18x_config */
565 /*====================================================================*/
566
567 static int fmvj18x_get_hwinfo(struct pcmcia_device *link, u_char *node_id)
568 {
569 win_req_t req;
570 memreq_t mem;
571 u_char __iomem *base;
572 int i, j;
573
574 /* Allocate a small memory window */
575 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
576 req.Base = 0; req.Size = 0;
577 req.AccessSpeed = 0;
578 i = pcmcia_request_window(&link, &req, &link->win);
579 if (i != CS_SUCCESS) {
580 cs_error(link, RequestWindow, i);
581 return -1;
582 }
583
584 base = ioremap(req.Base, req.Size);
585 mem.Page = 0;
586 mem.CardOffset = 0;
587 pcmcia_map_mem_page(link->win, &mem);
588
589 /*
590 * MBH10304 CISTPL_FUNCE_LAN_NODE_ID format
591 * 22 0d xx xx xx 04 06 yy yy yy yy yy yy ff
592 * 'xx' is garbage.
593 * 'yy' is MAC address.
594 */
595 for (i = 0; i < 0x200; i++) {
596 if (readb(base+i*2) == 0x22) {
597 if (readb(base+(i-1)*2) == 0xff
598 && readb(base+(i+5)*2) == 0x04
599 && readb(base+(i+6)*2) == 0x06
600 && readb(base+(i+13)*2) == 0xff)
601 break;
602 }
603 }
604
605 if (i != 0x200) {
606 for (j = 0 ; j < 6; j++,i++) {
607 node_id[j] = readb(base+(i+7)*2);
608 }
609 }
610
611 iounmap(base);
612 j = pcmcia_release_window(link->win);
613 if (j != CS_SUCCESS)
614 cs_error(link, ReleaseWindow, j);
615 return (i != 0x200) ? 0 : -1;
616
617 } /* fmvj18x_get_hwinfo */
618 /*====================================================================*/
619
620 static int fmvj18x_setup_mfc(struct pcmcia_device *link)
621 {
622 win_req_t req;
623 memreq_t mem;
624 u_char __iomem *base;
625 int i, j;
626 struct net_device *dev = link->priv;
627 kio_addr_t ioaddr;
628
629 /* Allocate a small memory window */
630 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
631 req.Base = 0; req.Size = 0;
632 req.AccessSpeed = 0;
633 i = pcmcia_request_window(&link, &req, &link->win);
634 if (i != CS_SUCCESS) {
635 cs_error(link, RequestWindow, i);
636 return -1;
637 }
638
639 base = ioremap(req.Base, req.Size);
640 mem.Page = 0;
641 mem.CardOffset = 0;
642 pcmcia_map_mem_page(link->win, &mem);
643
644 ioaddr = dev->base_addr;
645 writeb(0x47, base+0x800); /* Config Option Register of LAN */
646 writeb(0x0, base+0x802); /* Config and Status Register */
647
648 writeb(ioaddr & 0xff, base+0x80a); /* I/O Base(Low) of LAN */
649 writeb((ioaddr >> 8) & 0xff, base+0x80c); /* I/O Base(High) of LAN */
650
651 writeb(0x45, base+0x820); /* Config Option Register of Modem */
652 writeb(0x8, base+0x822); /* Config and Status Register */
653
654 iounmap(base);
655 j = pcmcia_release_window(link->win);
656 if (j != CS_SUCCESS)
657 cs_error(link, ReleaseWindow, j);
658 return 0;
659
660 }
661 /*====================================================================*/
662
663 static void fmvj18x_release(struct pcmcia_device *link)
664 {
665 DEBUG(0, "fmvj18x_release(0x%p)\n", link);
666 pcmcia_disable_device(link);
667 }
668
669 static int fmvj18x_suspend(struct pcmcia_device *link)
670 {
671 struct net_device *dev = link->priv;
672
673 if ((link->state & DEV_CONFIG) && (link->open))
674 netif_device_detach(dev);
675
676 return 0;
677 }
678
679 static int fmvj18x_resume(struct pcmcia_device *link)
680 {
681 struct net_device *dev = link->priv;
682
683 if ((link->state & DEV_CONFIG) && (link->open)) {
684 fjn_reset(dev);
685 netif_device_attach(dev);
686 }
687
688 return 0;
689 }
690
691 /*====================================================================*/
692
693 static struct pcmcia_device_id fmvj18x_ids[] = {
694 PCMCIA_DEVICE_MANF_CARD(0x0004, 0x0004),
695 PCMCIA_DEVICE_PROD_ID12("EAGLE Technology", "NE200 ETHERNET LAN MBH10302 04", 0x528c88c4, 0x74f91e59),
696 PCMCIA_DEVICE_PROD_ID12("Eiger Labs,Inc", "EPX-10BT PC Card Ethernet 10BT", 0x53af556e, 0x877f9922),
697 PCMCIA_DEVICE_PROD_ID12("Eiger labs,Inc.", "EPX-10BT PC Card Ethernet 10BT", 0xf47e6c66, 0x877f9922),
698 PCMCIA_DEVICE_PROD_ID12("FUJITSU", "LAN Card(FMV-J182)", 0x6ee5a3d8, 0x5baf31db),
699 PCMCIA_DEVICE_PROD_ID12("FUJITSU", "MBH10308", 0x6ee5a3d8, 0x3f04875e),
700 PCMCIA_DEVICE_PROD_ID12("FUJITSU TOWA", "LA501", 0xb8451188, 0x12939ba2),
701 PCMCIA_DEVICE_PROD_ID12("HITACHI", "HT-4840-11", 0xf4f43949, 0x773910f4),
702 PCMCIA_DEVICE_PROD_ID12("NextComK.K.", "NC5310B Ver1.0 ", 0x8cef4d3a, 0x075fc7b6),
703 PCMCIA_DEVICE_PROD_ID12("NextComK.K.", "NC5310 Ver1.0 ", 0x8cef4d3a, 0xbccf43e6),
704 PCMCIA_DEVICE_PROD_ID12("RATOC System Inc.", "10BASE_T CARD R280", 0x85c10e17, 0xd9413666),
705 PCMCIA_DEVICE_PROD_ID12("TDK", "LAC-CD02x", 0x1eae9475, 0x8fa0ee70),
706 PCMCIA_DEVICE_PROD_ID12("TDK", "LAC-CF010", 0x1eae9475, 0x7683bc9a),
707 PCMCIA_DEVICE_PROD_ID1("CONTEC Co.,Ltd.", 0x58d8fee2),
708 PCMCIA_DEVICE_PROD_ID1("PCMCIA LAN MBH10304 ES", 0x2599f454),
709 PCMCIA_DEVICE_PROD_ID1("PCMCIA MBH10302", 0x8f4005da),
710 PCMCIA_DEVICE_PROD_ID1("UBKK,V2.0", 0x90888080),
711 PCMCIA_PFC_DEVICE_PROD_ID12(0, "TDK", "GlobalNetworker 3410/3412", 0x1eae9475, 0xd9a93bed),
712 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0105, 0x0d0a),
713 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0105, 0x0e0a),
714 PCMCIA_DEVICE_NULL,
715 };
716 MODULE_DEVICE_TABLE(pcmcia, fmvj18x_ids);
717
718 static struct pcmcia_driver fmvj18x_cs_driver = {
719 .owner = THIS_MODULE,
720 .drv = {
721 .name = "fmvj18x_cs",
722 },
723 .probe = fmvj18x_attach,
724 .remove = fmvj18x_detach,
725 .id_table = fmvj18x_ids,
726 .suspend = fmvj18x_suspend,
727 .resume = fmvj18x_resume,
728 };
729
730 static int __init init_fmvj18x_cs(void)
731 {
732 return pcmcia_register_driver(&fmvj18x_cs_driver);
733 }
734
735 static void __exit exit_fmvj18x_cs(void)
736 {
737 pcmcia_unregister_driver(&fmvj18x_cs_driver);
738 }
739
740 module_init(init_fmvj18x_cs);
741 module_exit(exit_fmvj18x_cs);
742
743 /*====================================================================*/
744
745 static irqreturn_t fjn_interrupt(int irq, void *dev_id, struct pt_regs *regs)
746 {
747 struct net_device *dev = dev_id;
748 local_info_t *lp = netdev_priv(dev);
749 kio_addr_t ioaddr;
750 unsigned short tx_stat, rx_stat;
751
752 if (lp == NULL) {
753 printk(KERN_NOTICE "fjn_interrupt(): irq %d for "
754 "unknown device.\n", irq);
755 return IRQ_NONE;
756 }
757 ioaddr = dev->base_addr;
758
759 /* avoid multiple interrupts */
760 outw(0x0000, ioaddr + TX_INTR);
761
762 /* wait for a while */
763 udelay(1);
764
765 /* get status */
766 tx_stat = inb(ioaddr + TX_STATUS);
767 rx_stat = inb(ioaddr + RX_STATUS);
768
769 /* clear status */
770 outb(tx_stat, ioaddr + TX_STATUS);
771 outb(rx_stat, ioaddr + RX_STATUS);
772
773 DEBUG(4, "%s: interrupt, rx_status %02x.\n", dev->name, rx_stat);
774 DEBUG(4, " tx_status %02x.\n", tx_stat);
775
776 if (rx_stat || (inb(ioaddr + RX_MODE) & F_BUF_EMP) == 0) {
777 /* there is packet(s) in rx buffer */
778 fjn_rx(dev);
779 }
780 if (tx_stat & F_TMT_RDY) {
781 lp->stats.tx_packets += lp->sent ;
782 lp->sent = 0 ;
783 if (lp->tx_queue) {
784 outb(DO_TX | lp->tx_queue, ioaddr + TX_START);
785 lp->sent = lp->tx_queue ;
786 lp->tx_queue = 0;
787 lp->tx_queue_len = 0;
788 dev->trans_start = jiffies;
789 } else {
790 lp->tx_started = 0;
791 }
792 netif_wake_queue(dev);
793 }
794 DEBUG(4, "%s: exiting interrupt,\n", dev->name);
795 DEBUG(4, " tx_status %02x, rx_status %02x.\n", tx_stat, rx_stat);
796
797 outb(D_TX_INTR, ioaddr + TX_INTR);
798 outb(D_RX_INTR, ioaddr + RX_INTR);
799 return IRQ_HANDLED;
800
801 } /* fjn_interrupt */
802
803 /*====================================================================*/
804
805 static void fjn_tx_timeout(struct net_device *dev)
806 {
807 struct local_info_t *lp = netdev_priv(dev);
808 kio_addr_t ioaddr = dev->base_addr;
809
810 printk(KERN_NOTICE "%s: transmit timed out with status %04x, %s?\n",
811 dev->name, htons(inw(ioaddr + TX_STATUS)),
812 inb(ioaddr + TX_STATUS) & F_TMT_RDY
813 ? "IRQ conflict" : "network cable problem");
814 printk(KERN_NOTICE "%s: timeout registers: %04x %04x %04x "
815 "%04x %04x %04x %04x %04x.\n",
816 dev->name, htons(inw(ioaddr + 0)),
817 htons(inw(ioaddr + 2)), htons(inw(ioaddr + 4)),
818 htons(inw(ioaddr + 6)), htons(inw(ioaddr + 8)),
819 htons(inw(ioaddr +10)), htons(inw(ioaddr +12)),
820 htons(inw(ioaddr +14)));
821 lp->stats.tx_errors++;
822 /* ToDo: We should try to restart the adaptor... */
823 local_irq_disable();
824 fjn_reset(dev);
825
826 lp->tx_started = 0;
827 lp->tx_queue = 0;
828 lp->tx_queue_len = 0;
829 lp->sent = 0;
830 lp->open_time = jiffies;
831 local_irq_enable();
832 netif_wake_queue(dev);
833 }
834
835 static int fjn_start_xmit(struct sk_buff *skb, struct net_device *dev)
836 {
837 struct local_info_t *lp = netdev_priv(dev);
838 kio_addr_t ioaddr = dev->base_addr;
839 short length = skb->len;
840
841 if (length < ETH_ZLEN)
842 {
843 skb = skb_padto(skb, ETH_ZLEN);
844 if (skb == NULL)
845 return 0;
846 length = ETH_ZLEN;
847 }
848
849 netif_stop_queue(dev);
850
851 {
852 unsigned char *buf = skb->data;
853
854 if (length > ETH_FRAME_LEN) {
855 printk(KERN_NOTICE "%s: Attempting to send a large packet"
856 " (%d bytes).\n", dev->name, length);
857 return 1;
858 }
859
860 DEBUG(4, "%s: Transmitting a packet of length %lu.\n",
861 dev->name, (unsigned long)skb->len);
862 lp->stats.tx_bytes += skb->len;
863
864 /* Disable both interrupts. */
865 outw(0x0000, ioaddr + TX_INTR);
866
867 /* wait for a while */
868 udelay(1);
869
870 outw(length, ioaddr + DATAPORT);
871 outsw(ioaddr + DATAPORT, buf, (length + 1) >> 1);
872
873 lp->tx_queue++;
874 lp->tx_queue_len += ((length+3) & ~1);
875
876 if (lp->tx_started == 0) {
877 /* If the Tx is idle, always trigger a transmit. */
878 outb(DO_TX | lp->tx_queue, ioaddr + TX_START);
879 lp->sent = lp->tx_queue ;
880 lp->tx_queue = 0;
881 lp->tx_queue_len = 0;
882 dev->trans_start = jiffies;
883 lp->tx_started = 1;
884 netif_start_queue(dev);
885 } else {
886 if( sram_config == 0 ) {
887 if (lp->tx_queue_len < (4096 - (ETH_FRAME_LEN +2)) )
888 /* Yes, there is room for one more packet. */
889 netif_start_queue(dev);
890 } else {
891 if (lp->tx_queue_len < (8192 - (ETH_FRAME_LEN +2)) &&
892 lp->tx_queue < 127 )
893 /* Yes, there is room for one more packet. */
894 netif_start_queue(dev);
895 }
896 }
897
898 /* Re-enable interrupts */
899 outb(D_TX_INTR, ioaddr + TX_INTR);
900 outb(D_RX_INTR, ioaddr + RX_INTR);
901 }
902 dev_kfree_skb (skb);
903
904 return 0;
905 } /* fjn_start_xmit */
906
907 /*====================================================================*/
908
909 static void fjn_reset(struct net_device *dev)
910 {
911 struct local_info_t *lp = netdev_priv(dev);
912 kio_addr_t ioaddr = dev->base_addr;
913 int i;
914
915 DEBUG(4, "fjn_reset(%s) called.\n",dev->name);
916
917 /* Reset controller */
918 if( sram_config == 0 )
919 outb(CONFIG0_RST, ioaddr + CONFIG_0);
920 else
921 outb(CONFIG0_RST_1, ioaddr + CONFIG_0);
922
923 /* Power On chip and select bank 0 */
924 if (lp->cardtype == MBH10302)
925 outb(BANK_0, ioaddr + CONFIG_1);
926 else
927 outb(BANK_0U, ioaddr + CONFIG_1);
928
929 /* Set Tx modes */
930 outb(D_TX_MODE, ioaddr + TX_MODE);
931 /* set Rx modes */
932 outb(ID_MATCHED, ioaddr + RX_MODE);
933
934 /* Set hardware address */
935 for (i = 0; i < 6; i++)
936 outb(dev->dev_addr[i], ioaddr + NODE_ID + i);
937
938 /* (re)initialize the multicast table */
939 set_rx_mode(dev);
940
941 /* Switch to bank 2 (runtime mode) */
942 if (lp->cardtype == MBH10302)
943 outb(BANK_2, ioaddr + CONFIG_1);
944 else
945 outb(BANK_2U, ioaddr + CONFIG_1);
946
947 /* set 16col ctrl bits */
948 if( lp->cardtype == TDK || lp->cardtype == CONTEC)
949 outb(TDK_AUTO_MODE, ioaddr + COL_CTRL);
950 else
951 outb(AUTO_MODE, ioaddr + COL_CTRL);
952
953 /* clear Reserved Regs */
954 outb(0x00, ioaddr + BMPR12);
955 outb(0x00, ioaddr + BMPR13);
956
957 /* reset Skip packet reg. */
958 outb(0x01, ioaddr + RX_SKIP);
959
960 /* Enable Tx and Rx */
961 if( sram_config == 0 )
962 outb(CONFIG0_DFL, ioaddr + CONFIG_0);
963 else
964 outb(CONFIG0_DFL_1, ioaddr + CONFIG_0);
965
966 /* Init receive pointer ? */
967 inw(ioaddr + DATAPORT);
968 inw(ioaddr + DATAPORT);
969
970 /* Clear all status */
971 outb(0xff, ioaddr + TX_STATUS);
972 outb(0xff, ioaddr + RX_STATUS);
973
974 if (lp->cardtype == MBH10302)
975 outb(INTR_OFF, ioaddr + LAN_CTRL);
976
977 /* Turn on Rx interrupts */
978 outb(D_TX_INTR, ioaddr + TX_INTR);
979 outb(D_RX_INTR, ioaddr + RX_INTR);
980
981 /* Turn on interrupts from LAN card controller */
982 if (lp->cardtype == MBH10302)
983 outb(INTR_ON, ioaddr + LAN_CTRL);
984 } /* fjn_reset */
985
986 /*====================================================================*/
987
988 static void fjn_rx(struct net_device *dev)
989 {
990 struct local_info_t *lp = netdev_priv(dev);
991 kio_addr_t ioaddr = dev->base_addr;
992 int boguscount = 10; /* 5 -> 10: by agy 19940922 */
993
994 DEBUG(4, "%s: in rx_packet(), rx_status %02x.\n",
995 dev->name, inb(ioaddr + RX_STATUS));
996
997 while ((inb(ioaddr + RX_MODE) & F_BUF_EMP) == 0) {
998 u_short status = inw(ioaddr + DATAPORT);
999
1000 DEBUG(4, "%s: Rxing packet mode %02x status %04x.\n",
1001 dev->name, inb(ioaddr + RX_MODE), status);
1002 #ifndef final_version
1003 if (status == 0) {
1004 outb(F_SKP_PKT, ioaddr + RX_SKIP);
1005 break;
1006 }
1007 #endif
1008 if ((status & 0xF0) != 0x20) { /* There was an error. */
1009 lp->stats.rx_errors++;
1010 if (status & F_LEN_ERR) lp->stats.rx_length_errors++;
1011 if (status & F_ALG_ERR) lp->stats.rx_frame_errors++;
1012 if (status & F_CRC_ERR) lp->stats.rx_crc_errors++;
1013 if (status & F_OVR_FLO) lp->stats.rx_over_errors++;
1014 } else {
1015 u_short pkt_len = inw(ioaddr + DATAPORT);
1016 /* Malloc up new buffer. */
1017 struct sk_buff *skb;
1018
1019 if (pkt_len > 1550) {
1020 printk(KERN_NOTICE "%s: The FMV-18x claimed a very "
1021 "large packet, size %d.\n", dev->name, pkt_len);
1022 outb(F_SKP_PKT, ioaddr + RX_SKIP);
1023 lp->stats.rx_errors++;
1024 break;
1025 }
1026 skb = dev_alloc_skb(pkt_len+2);
1027 if (skb == NULL) {
1028 printk(KERN_NOTICE "%s: Memory squeeze, dropping "
1029 "packet (len %d).\n", dev->name, pkt_len);
1030 outb(F_SKP_PKT, ioaddr + RX_SKIP);
1031 lp->stats.rx_dropped++;
1032 break;
1033 }
1034 skb->dev = dev;
1035
1036 skb_reserve(skb, 2);
1037 insw(ioaddr + DATAPORT, skb_put(skb, pkt_len),
1038 (pkt_len + 1) >> 1);
1039 skb->protocol = eth_type_trans(skb, dev);
1040
1041 #ifdef PCMCIA_DEBUG
1042 if (pc_debug > 5) {
1043 int i;
1044 printk(KERN_DEBUG "%s: Rxed packet of length %d: ",
1045 dev->name, pkt_len);
1046 for (i = 0; i < 14; i++)
1047 printk(" %02x", skb->data[i]);
1048 printk(".\n");
1049 }
1050 #endif
1051
1052 netif_rx(skb);
1053 dev->last_rx = jiffies;
1054 lp->stats.rx_packets++;
1055 lp->stats.rx_bytes += pkt_len;
1056 }
1057 if (--boguscount <= 0)
1058 break;
1059 }
1060
1061 /* If any worth-while packets have been received, dev_rint()
1062 has done a netif_wake_queue() for us and will work on them
1063 when we get to the bottom-half routine. */
1064 /*
1065 if (lp->cardtype != TDK) {
1066 int i;
1067 for (i = 0; i < 20; i++) {
1068 if ((inb(ioaddr + RX_MODE) & F_BUF_EMP) == F_BUF_EMP)
1069 break;
1070 (void)inw(ioaddr + DATAPORT); /+ dummy status read +/
1071 outb(F_SKP_PKT, ioaddr + RX_SKIP);
1072 }
1073
1074 if (i > 0)
1075 DEBUG(5, "%s: Exint Rx packet with mode %02x after "
1076 "%d ticks.\n", dev->name, inb(ioaddr + RX_MODE), i);
1077 }
1078 */
1079
1080 return;
1081 } /* fjn_rx */
1082
1083 /*====================================================================*/
1084
1085 static void netdev_get_drvinfo(struct net_device *dev,
1086 struct ethtool_drvinfo *info)
1087 {
1088 strcpy(info->driver, DRV_NAME);
1089 strcpy(info->version, DRV_VERSION);
1090 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
1091 }
1092
1093 #ifdef PCMCIA_DEBUG
1094 static u32 netdev_get_msglevel(struct net_device *dev)
1095 {
1096 return pc_debug;
1097 }
1098
1099 static void netdev_set_msglevel(struct net_device *dev, u32 level)
1100 {
1101 pc_debug = level;
1102 }
1103 #endif /* PCMCIA_DEBUG */
1104
1105 static struct ethtool_ops netdev_ethtool_ops = {
1106 .get_drvinfo = netdev_get_drvinfo,
1107 #ifdef PCMCIA_DEBUG
1108 .get_msglevel = netdev_get_msglevel,
1109 .set_msglevel = netdev_set_msglevel,
1110 #endif /* PCMCIA_DEBUG */
1111 };
1112
1113 static int fjn_config(struct net_device *dev, struct ifmap *map){
1114 return 0;
1115 }
1116
1117 static int fjn_open(struct net_device *dev)
1118 {
1119 struct local_info_t *lp = netdev_priv(dev);
1120 struct pcmcia_device *link = lp->p_dev;
1121
1122 DEBUG(4, "fjn_open('%s').\n", dev->name);
1123
1124 if (!DEV_OK(link))
1125 return -ENODEV;
1126
1127 link->open++;
1128
1129 fjn_reset(dev);
1130
1131 lp->tx_started = 0;
1132 lp->tx_queue = 0;
1133 lp->tx_queue_len = 0;
1134 lp->open_time = jiffies;
1135 netif_start_queue(dev);
1136
1137 return 0;
1138 } /* fjn_open */
1139
1140 /*====================================================================*/
1141
1142 static int fjn_close(struct net_device *dev)
1143 {
1144 struct local_info_t *lp = netdev_priv(dev);
1145 struct pcmcia_device *link = lp->p_dev;
1146 kio_addr_t ioaddr = dev->base_addr;
1147
1148 DEBUG(4, "fjn_close('%s').\n", dev->name);
1149
1150 lp->open_time = 0;
1151 netif_stop_queue(dev);
1152
1153 /* Set configuration register 0 to disable Tx and Rx. */
1154 if( sram_config == 0 )
1155 outb(CONFIG0_RST ,ioaddr + CONFIG_0);
1156 else
1157 outb(CONFIG0_RST_1 ,ioaddr + CONFIG_0);
1158
1159 /* Update the statistics -- ToDo. */
1160
1161 /* Power-down the chip. Green, green, green! */
1162 outb(CHIP_OFF ,ioaddr + CONFIG_1);
1163
1164 /* Set the ethernet adaptor disable IRQ */
1165 if (lp->cardtype == MBH10302)
1166 outb(INTR_OFF, ioaddr + LAN_CTRL);
1167
1168 link->open--;
1169
1170 return 0;
1171 } /* fjn_close */
1172
1173 /*====================================================================*/
1174
1175 static struct net_device_stats *fjn_get_stats(struct net_device *dev)
1176 {
1177 local_info_t *lp = netdev_priv(dev);
1178 return &lp->stats;
1179 } /* fjn_get_stats */
1180
1181 /*====================================================================*/
1182
1183 /*
1184 Set the multicast/promiscuous mode for this adaptor.
1185 */
1186
1187 static void set_rx_mode(struct net_device *dev)
1188 {
1189 kio_addr_t ioaddr = dev->base_addr;
1190 u_char mc_filter[8]; /* Multicast hash filter */
1191 u_long flags;
1192 int i;
1193
1194 int saved_bank;
1195 int saved_config_0 = inb(ioaddr + CONFIG_0);
1196
1197 local_irq_save(flags);
1198
1199 /* Disable Tx and Rx */
1200 if (sram_config == 0)
1201 outb(CONFIG0_RST, ioaddr + CONFIG_0);
1202 else
1203 outb(CONFIG0_RST_1, ioaddr + CONFIG_0);
1204
1205 if (dev->flags & IFF_PROMISC) {
1206 /* Unconditionally log net taps. */
1207 printk("%s: Promiscuous mode enabled.\n", dev->name);
1208 memset(mc_filter, 0xff, sizeof(mc_filter));
1209 outb(3, ioaddr + RX_MODE); /* Enable promiscuous mode */
1210 } else if (dev->mc_count > MC_FILTERBREAK
1211 || (dev->flags & IFF_ALLMULTI)) {
1212 /* Too many to filter perfectly -- accept all multicasts. */
1213 memset(mc_filter, 0xff, sizeof(mc_filter));
1214 outb(2, ioaddr + RX_MODE); /* Use normal mode. */
1215 } else if (dev->mc_count == 0) {
1216 memset(mc_filter, 0x00, sizeof(mc_filter));
1217 outb(1, ioaddr + RX_MODE); /* Ignore almost all multicasts. */
1218 } else {
1219 struct dev_mc_list *mclist;
1220 int i;
1221
1222 memset(mc_filter, 0, sizeof(mc_filter));
1223 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
1224 i++, mclist = mclist->next) {
1225 unsigned int bit =
1226 ether_crc_le(ETH_ALEN, mclist->dmi_addr) >> 26;
1227 mc_filter[bit >> 3] |= (1 << (bit & 7));
1228 }
1229 outb(2, ioaddr + RX_MODE); /* Use normal mode. */
1230 }
1231
1232 /* Switch to bank 1 and set the multicast table. */
1233 saved_bank = inb(ioaddr + CONFIG_1);
1234 outb(0xe4, ioaddr + CONFIG_1);
1235
1236 for (i = 0; i < 8; i++)
1237 outb(mc_filter[i], ioaddr + MAR_ADR + i);
1238 outb(saved_bank, ioaddr + CONFIG_1);
1239
1240 outb(saved_config_0, ioaddr + CONFIG_0);
1241
1242 local_irq_restore(flags);
1243 }
Linux kernel - Deliverables
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