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31#include <linux/delay.h>
32#include <linux/types.h>
33#include <linux/interrupt.h>
34#include <linux/in.h>
35#include <linux/kernel.h>
36#include <linux/module.h>
37#include <linux/fcntl.h>
38#include <linux/if_arp.h>
39#include <linux/ioport.h>
40#include <linux/netdevice.h>
41#include <linux/etherdevice.h>
42#include <linux/skbuff.h>
43#include <linux/slab.h>
44#include <linux/string.h>
45#include <linux/wireless.h>
46#include <net/cfg80211.h>
47
48#include <net/iw_handler.h>
49
50#include <pcmcia/cistpl.h>
51#include <pcmcia/cisreg.h>
52#include <pcmcia/ds.h>
53
54#include <asm/io.h>
55#include <linux/uaccess.h>
56
57#include "wl3501.h"
58
59#ifndef __i386__
60#define slow_down_io()
61#endif
62
63
64#define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
65
66
67
68#define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
69#define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
70#define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
71
72#define WL3501_RELEASE_TIMEOUT (25 * HZ)
73#define WL3501_MAX_ADHOC_TRIES 16
74
75#define WL3501_RESUME 0
76#define WL3501_SUSPEND 1
77
78static int wl3501_config(struct pcmcia_device *link);
79static void wl3501_release(struct pcmcia_device *link);
80
81static const struct {
82 int reg_domain;
83 int min, max, deflt;
84} iw_channel_table[] = {
85 {
86 .reg_domain = IW_REG_DOMAIN_FCC,
87 .min = 1,
88 .max = 11,
89 .deflt = 1,
90 },
91 {
92 .reg_domain = IW_REG_DOMAIN_DOC,
93 .min = 1,
94 .max = 11,
95 .deflt = 1,
96 },
97 {
98 .reg_domain = IW_REG_DOMAIN_ETSI,
99 .min = 1,
100 .max = 13,
101 .deflt = 1,
102 },
103 {
104 .reg_domain = IW_REG_DOMAIN_SPAIN,
105 .min = 10,
106 .max = 11,
107 .deflt = 10,
108 },
109 {
110 .reg_domain = IW_REG_DOMAIN_FRANCE,
111 .min = 10,
112 .max = 13,
113 .deflt = 10,
114 },
115 {
116 .reg_domain = IW_REG_DOMAIN_MKK,
117 .min = 14,
118 .max = 14,
119 .deflt = 14,
120 },
121 {
122 .reg_domain = IW_REG_DOMAIN_MKK1,
123 .min = 1,
124 .max = 14,
125 .deflt = 1,
126 },
127 {
128 .reg_domain = IW_REG_DOMAIN_ISRAEL,
129 .min = 3,
130 .max = 9,
131 .deflt = 9,
132 },
133};
134
135
136
137
138
139
140
141
142static int iw_valid_channel(int reg_domain, int channel)
143{
144 int i, rc = 0;
145
146 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
147 if (reg_domain == iw_channel_table[i].reg_domain) {
148 rc = channel >= iw_channel_table[i].min &&
149 channel <= iw_channel_table[i].max;
150 break;
151 }
152 return rc;
153}
154
155
156
157
158
159
160
161static int iw_default_channel(int reg_domain)
162{
163 int i, rc = 1;
164
165 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
166 if (reg_domain == iw_channel_table[i].reg_domain) {
167 rc = iw_channel_table[i].deflt;
168 break;
169 }
170 return rc;
171}
172
173static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
174 struct iw_mgmt_info_element *el,
175 void *value, int len)
176{
177 el->id = id;
178 el->len = len;
179 memcpy(el->data, value, len);
180}
181
182static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
183 struct iw_mgmt_info_element *from)
184{
185 iw_set_mgmt_info_element(from->id, to, from->data, from->len);
186}
187
188static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
189{
190 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
191}
192
193
194
195
196
197
198
199static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
200{
201 int base_addr = this->base_addr;
202
203
204 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS);
205 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL);
206 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
207
208
209 WL3501_NOPLOOP(100);
210 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
211 WL3501_NOPLOOP(100);
212 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
213 WL3501_NOPLOOP(100);
214 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
215 WL3501_NOPLOOP(100);
216 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
217 WL3501_NOPLOOP(100);
218 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
219 WL3501_NOPLOOP(100);
220 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
221 WL3501_NOPLOOP(100);
222 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
223 WL3501_NOPLOOP(100);
224 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
225 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
226 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
227 WL3501_NOPLOOP(100);
228 this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
229 WL3501_NOPLOOP(100);
230 this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
231
232 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
233
234
235 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
236}
237
238
239
240
241
242
243
244
245
246static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
247 int size)
248{
249
250 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
251 WL3501_BSS_SPAGE0);
252
253 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
254 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
255
256
257 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
258}
259
260
261
262
263
264
265
266
267
268static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
269 int size)
270{
271
272 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
273 WL3501_BSS_SPAGE0);
274
275 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
276 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
277
278
279 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
280}
281
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285
286
287
288
289
290
291
292
293
294static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
295{
296 u16 next, blk_cnt = 0, zero = 0;
297 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
298 u16 ret = 0;
299
300 if (full_len > this->tx_buffer_cnt * 254)
301 goto out;
302 ret = this->tx_buffer_head;
303 while (full_len) {
304 if (full_len < 254)
305 full_len = 0;
306 else
307 full_len -= 254;
308 wl3501_get_from_wla(this, this->tx_buffer_head, &next,
309 sizeof(next));
310 if (!full_len)
311 wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
312 sizeof(zero));
313 this->tx_buffer_head = next;
314 blk_cnt++;
315
316 if (!next && full_len) {
317 this->tx_buffer_head = ret;
318 ret = 0;
319 goto out;
320 }
321 }
322 this->tx_buffer_cnt -= blk_cnt;
323out:
324 return ret;
325}
326
327
328
329
330static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
331{
332
333 if (!this->tx_buffer_head)
334 this->tx_buffer_head = ptr;
335 else
336 wl3501_set_to_wla(this, this->tx_buffer_tail,
337 &ptr, sizeof(ptr));
338 while (ptr) {
339 u16 next;
340
341 this->tx_buffer_cnt++;
342 wl3501_get_from_wla(this, ptr, &next, sizeof(next));
343 this->tx_buffer_tail = ptr;
344 ptr = next;
345 }
346}
347
348static int wl3501_esbq_req_test(struct wl3501_card *this)
349{
350 u8 tmp = 0;
351
352 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
353 return tmp & 0x80;
354}
355
356static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
357{
358 u16 tmp = 0;
359
360 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
361 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
362 this->esbq_req_head += 4;
363 if (this->esbq_req_head >= this->esbq_req_end)
364 this->esbq_req_head = this->esbq_req_start;
365}
366
367static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
368{
369 int rc = -EIO;
370
371 if (wl3501_esbq_req_test(this)) {
372 u16 ptr = wl3501_get_tx_buffer(this, sig_size);
373 if (ptr) {
374 wl3501_set_to_wla(this, ptr, sig, sig_size);
375 wl3501_esbq_req(this, &ptr);
376 rc = 0;
377 }
378 }
379 return rc;
380}
381
382static int wl3501_request_mib(struct wl3501_card *this, u8 index, void *bf)
383{
384 struct wl3501_get_req sig = {
385 .sig_id = WL3501_SIG_GET_REQ,
386 .mib_attrib = index,
387 };
388 unsigned long flags;
389 int rc = -EIO;
390
391 spin_lock_irqsave(&this->lock, flags);
392 if (wl3501_esbq_req_test(this)) {
393 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
394 if (ptr) {
395 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
396 wl3501_esbq_req(this, &ptr);
397 this->sig_get_confirm.mib_status = 255;
398 rc = 0;
399 }
400 }
401 spin_unlock_irqrestore(&this->lock, flags);
402
403 return rc;
404}
405
406static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
407 void *bf, int size)
408{
409 int rc;
410
411 rc = wl3501_request_mib(this, index, bf);
412 if (rc)
413 return rc;
414
415 rc = wait_event_interruptible(this->wait,
416 this->sig_get_confirm.mib_status != 255);
417 if (rc)
418 return rc;
419
420 memcpy(bf, this->sig_get_confirm.mib_value, size);
421 return 0;
422}
423
424static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
425{
426 struct wl3501_pwr_mgmt_req sig = {
427 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
428 .pwr_save = suspend,
429 .wake_up = !suspend,
430 .receive_dtims = 10,
431 };
432 unsigned long flags;
433 int rc = -EIO;
434
435 spin_lock_irqsave(&this->lock, flags);
436 if (wl3501_esbq_req_test(this)) {
437 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
438 if (ptr) {
439 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
440 wl3501_esbq_req(this, &ptr);
441 this->sig_pwr_mgmt_confirm.status = 255;
442 spin_unlock_irqrestore(&this->lock, flags);
443 rc = wait_event_interruptible(this->wait,
444 this->sig_pwr_mgmt_confirm.status != 255);
445 printk(KERN_INFO "%s: %s status=%d\n", __func__,
446 suspend ? "suspend" : "resume",
447 this->sig_pwr_mgmt_confirm.status);
448 goto out;
449 }
450 }
451 spin_unlock_irqrestore(&this->lock, flags);
452out:
453 return rc;
454}
455
456
457
458
459
460
461
462
463
464
465
466static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
467{
468 u16 bf, sig_bf, next, tmplen, pktlen;
469 struct wl3501_md_req sig = {
470 .sig_id = WL3501_SIG_MD_REQ,
471 };
472 u8 *pdata = (char *)data;
473 int rc = -EIO;
474
475 if (wl3501_esbq_req_test(this)) {
476 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
477 rc = -ENOMEM;
478 if (!sig_bf)
479 goto out;
480 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
481 if (!bf) {
482
483 wl3501_free_tx_buffer(this, sig_bf);
484 goto out;
485 }
486 rc = 0;
487 memcpy(&sig.daddr[0], pdata, 12);
488 pktlen = len - 12;
489 pdata += 12;
490 sig.data = bf;
491 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
492 u8 addr4[ETH_ALEN] = {
493 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
494 };
495
496 wl3501_set_to_wla(this, bf + 2 +
497 offsetof(struct wl3501_tx_hdr, addr4),
498 addr4, sizeof(addr4));
499 sig.size = pktlen + 24 + 4 + 6;
500 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
501 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
502 pktlen -= tmplen;
503 } else {
504 tmplen = pktlen;
505 pktlen = 0;
506 }
507 wl3501_set_to_wla(this,
508 bf + 2 + sizeof(struct wl3501_tx_hdr),
509 pdata, tmplen);
510 pdata += tmplen;
511 wl3501_get_from_wla(this, bf, &next, sizeof(next));
512 bf = next;
513 } else {
514 sig.size = pktlen + 24 + 4 - 2;
515 pdata += 2;
516 pktlen -= 2;
517 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
518 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
519 pktlen -= tmplen;
520 } else {
521 tmplen = pktlen;
522 pktlen = 0;
523 }
524 wl3501_set_to_wla(this, bf + 2 +
525 offsetof(struct wl3501_tx_hdr, addr4),
526 pdata, tmplen);
527 pdata += tmplen;
528 wl3501_get_from_wla(this, bf, &next, sizeof(next));
529 bf = next;
530 }
531 while (pktlen > 0) {
532 if (pktlen > 254) {
533 tmplen = 254;
534 pktlen -= 254;
535 } else {
536 tmplen = pktlen;
537 pktlen = 0;
538 }
539 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
540 pdata += tmplen;
541 wl3501_get_from_wla(this, bf, &next, sizeof(next));
542 bf = next;
543 }
544 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
545 wl3501_esbq_req(this, &sig_bf);
546 }
547out:
548 return rc;
549}
550
551static int wl3501_mgmt_resync(struct wl3501_card *this)
552{
553 struct wl3501_resync_req sig = {
554 .sig_id = WL3501_SIG_RESYNC_REQ,
555 };
556
557 return wl3501_esbq_exec(this, &sig, sizeof(sig));
558}
559
560static inline int wl3501_fw_bss_type(struct wl3501_card *this)
561{
562 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
563 WL3501_NET_TYPE_ADHOC;
564}
565
566static inline int wl3501_fw_cap_info(struct wl3501_card *this)
567{
568 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
569 WL3501_MGMT_CAPABILITY_IBSS;
570}
571
572static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
573{
574 struct wl3501_scan_req sig = {
575 .sig_id = WL3501_SIG_SCAN_REQ,
576 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
577 .probe_delay = 0x10,
578 .min_chan_time = chan_time,
579 .max_chan_time = chan_time,
580 .bss_type = wl3501_fw_bss_type(this),
581 };
582
583 this->bss_cnt = this->join_sta_bss = 0;
584 return wl3501_esbq_exec(this, &sig, sizeof(sig));
585}
586
587static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
588{
589 struct wl3501_join_req sig = {
590 .sig_id = WL3501_SIG_JOIN_REQ,
591 .timeout = 10,
592 .ds_pset = {
593 .el = {
594 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
595 .len = 1,
596 },
597 .chan = this->chan,
598 },
599 };
600
601 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
602 return wl3501_esbq_exec(this, &sig, sizeof(sig));
603}
604
605static int wl3501_mgmt_start(struct wl3501_card *this)
606{
607 struct wl3501_start_req sig = {
608 .sig_id = WL3501_SIG_START_REQ,
609 .beacon_period = 400,
610 .dtim_period = 1,
611 .ds_pset = {
612 .el = {
613 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
614 .len = 1,
615 },
616 .chan = this->chan,
617 },
618 .bss_basic_rset = {
619 .el = {
620 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
621 .len = 2,
622 },
623 .data_rate_labels = {
624 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
625 IW_MGMT_RATE_LABEL_1MBIT,
626 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
627 IW_MGMT_RATE_LABEL_2MBIT,
628 },
629 },
630 .operational_rset = {
631 .el = {
632 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
633 .len = 2,
634 },
635 .data_rate_labels = {
636 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
637 IW_MGMT_RATE_LABEL_1MBIT,
638 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
639 IW_MGMT_RATE_LABEL_2MBIT,
640 },
641 },
642 .ibss_pset = {
643 .el = {
644 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
645 .len = 2,
646 },
647 .atim_window = 10,
648 },
649 .bss_type = wl3501_fw_bss_type(this),
650 .cap_info = wl3501_fw_cap_info(this),
651 };
652
653 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
654 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
655 return wl3501_esbq_exec(this, &sig, sizeof(sig));
656}
657
658static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
659{
660 u16 i = 0;
661 int matchflag = 0;
662 struct wl3501_scan_confirm sig;
663
664 pr_debug("entry");
665 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
666 if (sig.status == WL3501_STATUS_SUCCESS) {
667 pr_debug("success");
668 if ((this->net_type == IW_MODE_INFRA &&
669 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
670 (this->net_type == IW_MODE_ADHOC &&
671 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
672 this->net_type == IW_MODE_AUTO) {
673 if (!this->essid.el.len)
674 matchflag = 1;
675 else if (this->essid.el.len == 3 &&
676 !memcmp(this->essid.essid, "ANY", 3))
677 matchflag = 1;
678 else if (this->essid.el.len != sig.ssid.el.len)
679 matchflag = 0;
680 else if (memcmp(this->essid.essid, sig.ssid.essid,
681 this->essid.el.len))
682 matchflag = 0;
683 else
684 matchflag = 1;
685 if (matchflag) {
686 for (i = 0; i < this->bss_cnt; i++) {
687 if (ether_addr_equal_unaligned(this->bss_set[i].bssid, sig.bssid)) {
688 matchflag = 0;
689 break;
690 }
691 }
692 }
693 if (matchflag && (i < 20)) {
694 memcpy(&this->bss_set[i].beacon_period,
695 &sig.beacon_period, 73);
696 this->bss_cnt++;
697 this->rssi = sig.rssi;
698 }
699 }
700 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
701 pr_debug("timeout");
702 this->join_sta_bss = 0;
703 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
704 if (!wl3501_mgmt_join(this, i))
705 break;
706 this->join_sta_bss = i;
707 if (this->join_sta_bss == this->bss_cnt) {
708 if (this->net_type == IW_MODE_INFRA)
709 wl3501_mgmt_scan(this, 100);
710 else {
711 this->adhoc_times++;
712 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
713 wl3501_mgmt_start(this);
714 else
715 wl3501_mgmt_scan(this, 100);
716 }
717 }
718 }
719}
720
721
722
723
724
725
726
727
728static int wl3501_block_interrupt(struct wl3501_card *this)
729{
730 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
731 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
732 WL3501_GCR_ENECINT));
733
734 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
735 return old & WL3501_GCR_ENECINT;
736}
737
738
739
740
741
742
743
744
745static int wl3501_unblock_interrupt(struct wl3501_card *this)
746{
747 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
748 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
749 WL3501_GCR_ENECINT;
750
751 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
752 return old & WL3501_GCR_ENECINT;
753}
754
755
756
757
758
759
760
761
762
763
764static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
765{
766 u16 next_addr, next_addr1;
767 u8 *data = bf + 12;
768
769 size -= 12;
770 wl3501_get_from_wla(this, this->start_seg + 2,
771 &next_addr, sizeof(next_addr));
772 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
773 wl3501_get_from_wla(this,
774 this->start_seg +
775 sizeof(struct wl3501_rx_hdr), data,
776 WL3501_BLKSZ -
777 sizeof(struct wl3501_rx_hdr));
778 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
779 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
780 } else {
781 wl3501_get_from_wla(this,
782 this->start_seg +
783 sizeof(struct wl3501_rx_hdr),
784 data, size);
785 size = 0;
786 }
787 while (size > 0) {
788 if (size > WL3501_BLKSZ - 5) {
789 wl3501_get_from_wla(this, next_addr + 5, data,
790 WL3501_BLKSZ - 5);
791 size -= WL3501_BLKSZ - 5;
792 data += WL3501_BLKSZ - 5;
793 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
794 sizeof(next_addr1));
795 next_addr = next_addr1;
796 } else {
797 wl3501_get_from_wla(this, next_addr + 5, data, size);
798 size = 0;
799 }
800 }
801 return 0;
802}
803
804static void wl3501_esbq_req_free(struct wl3501_card *this)
805{
806 u8 tmp;
807 u16 addr;
808
809 if (this->esbq_req_head == this->esbq_req_tail)
810 goto out;
811 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
812 if (!(tmp & 0x80))
813 goto out;
814 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
815 wl3501_free_tx_buffer(this, addr);
816 this->esbq_req_tail += 4;
817 if (this->esbq_req_tail >= this->esbq_req_end)
818 this->esbq_req_tail = this->esbq_req_start;
819out:
820 return;
821}
822
823static int wl3501_esbq_confirm(struct wl3501_card *this)
824{
825 u8 tmp;
826
827 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
828 return tmp & 0x80;
829}
830
831static void wl3501_online(struct net_device *dev)
832{
833 struct wl3501_card *this = netdev_priv(dev);
834
835 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
836 dev->name, this->bssid);
837 netif_wake_queue(dev);
838}
839
840static void wl3501_esbq_confirm_done(struct wl3501_card *this)
841{
842 u8 tmp = 0;
843
844 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
845 this->esbq_confirm += 4;
846 if (this->esbq_confirm >= this->esbq_confirm_end)
847 this->esbq_confirm = this->esbq_confirm_start;
848}
849
850static int wl3501_mgmt_auth(struct wl3501_card *this)
851{
852 struct wl3501_auth_req sig = {
853 .sig_id = WL3501_SIG_AUTH_REQ,
854 .type = WL3501_SYS_TYPE_OPEN,
855 .timeout = 1000,
856 };
857
858 pr_debug("entry");
859 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
860 return wl3501_esbq_exec(this, &sig, sizeof(sig));
861}
862
863static int wl3501_mgmt_association(struct wl3501_card *this)
864{
865 struct wl3501_assoc_req sig = {
866 .sig_id = WL3501_SIG_ASSOC_REQ,
867 .timeout = 1000,
868 .listen_interval = 5,
869 .cap_info = this->cap_info,
870 };
871
872 pr_debug("entry");
873 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
874 return wl3501_esbq_exec(this, &sig, sizeof(sig));
875}
876
877static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
878{
879 struct wl3501_card *this = netdev_priv(dev);
880 struct wl3501_join_confirm sig;
881
882 pr_debug("entry");
883 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
884 if (sig.status == WL3501_STATUS_SUCCESS) {
885 if (this->net_type == IW_MODE_INFRA) {
886 if (this->join_sta_bss < this->bss_cnt) {
887 const int i = this->join_sta_bss;
888 memcpy(this->bssid,
889 this->bss_set[i].bssid, ETH_ALEN);
890 this->chan = this->bss_set[i].ds_pset.chan;
891 iw_copy_mgmt_info_element(&this->keep_essid.el,
892 &this->bss_set[i].ssid.el);
893 wl3501_mgmt_auth(this);
894 }
895 } else {
896 const int i = this->join_sta_bss;
897
898 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
899 this->chan = this->bss_set[i].ds_pset.chan;
900 iw_copy_mgmt_info_element(&this->keep_essid.el,
901 &this->bss_set[i].ssid.el);
902 wl3501_online(dev);
903 }
904 } else {
905 int i;
906 this->join_sta_bss++;
907 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
908 if (!wl3501_mgmt_join(this, i))
909 break;
910 this->join_sta_bss = i;
911 if (this->join_sta_bss == this->bss_cnt) {
912 if (this->net_type == IW_MODE_INFRA)
913 wl3501_mgmt_scan(this, 100);
914 else {
915 this->adhoc_times++;
916 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
917 wl3501_mgmt_start(this);
918 else
919 wl3501_mgmt_scan(this, 100);
920 }
921 }
922 }
923}
924
925static inline void wl3501_alarm_interrupt(struct net_device *dev,
926 struct wl3501_card *this)
927{
928 if (this->net_type == IW_MODE_INFRA) {
929 printk(KERN_INFO "Wireless LAN offline\n");
930 netif_stop_queue(dev);
931 wl3501_mgmt_resync(this);
932 }
933}
934
935static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
936 struct wl3501_card *this,
937 u16 addr)
938{
939 struct wl3501_md_confirm sig;
940
941 pr_debug("entry");
942 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
943 wl3501_free_tx_buffer(this, sig.data);
944 if (netif_queue_stopped(dev))
945 netif_wake_queue(dev);
946}
947
948static inline void wl3501_md_ind_interrupt(struct net_device *dev,
949 struct wl3501_card *this, u16 addr)
950{
951 struct wl3501_md_ind sig;
952 struct sk_buff *skb;
953 u8 rssi, addr4[ETH_ALEN];
954 u16 pkt_len;
955
956 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
957 this->start_seg = sig.data;
958 wl3501_get_from_wla(this,
959 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
960 &rssi, sizeof(rssi));
961 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
962
963 wl3501_get_from_wla(this,
964 sig.data +
965 offsetof(struct wl3501_rx_hdr, addr4),
966 &addr4, sizeof(addr4));
967 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
968 addr4[2] == 0x03 && addr4[4] == 0x00)) {
969 printk(KERN_INFO "Unsupported packet type!\n");
970 return;
971 }
972 pkt_len = sig.size + 12 - 24 - 4 - 6;
973
974 skb = dev_alloc_skb(pkt_len + 5);
975
976 if (!skb) {
977 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
978 dev->name, pkt_len);
979 dev->stats.rx_dropped++;
980 } else {
981 skb->dev = dev;
982 skb_reserve(skb, 2);
983 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
984 wl3501_receive(this, skb->data, pkt_len);
985 skb_put(skb, pkt_len);
986 skb->protocol = eth_type_trans(skb, dev);
987 dev->stats.rx_packets++;
988 dev->stats.rx_bytes += skb->len;
989 netif_rx(skb);
990 }
991}
992
993static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
994 u16 addr, void *sig, int size)
995{
996 pr_debug("entry");
997 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
998 sizeof(this->sig_get_confirm));
999 wake_up(&this->wait);
1000}
1001
1002static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1003 struct wl3501_card *this,
1004 u16 addr)
1005{
1006 struct wl3501_start_confirm sig;
1007
1008 pr_debug("entry");
1009 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1010 if (sig.status == WL3501_STATUS_SUCCESS)
1011 netif_wake_queue(dev);
1012}
1013
1014static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1015 u16 addr)
1016{
1017 struct wl3501_card *this = netdev_priv(dev);
1018 struct wl3501_assoc_confirm sig;
1019
1020 pr_debug("entry");
1021 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1022
1023 if (sig.status == WL3501_STATUS_SUCCESS)
1024 wl3501_online(dev);
1025}
1026
1027static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1028 u16 addr)
1029{
1030 struct wl3501_auth_confirm sig;
1031
1032 pr_debug("entry");
1033 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1034
1035 if (sig.status == WL3501_STATUS_SUCCESS)
1036 wl3501_mgmt_association(this);
1037 else
1038 wl3501_mgmt_resync(this);
1039}
1040
1041static inline void wl3501_rx_interrupt(struct net_device *dev)
1042{
1043 int morepkts;
1044 u16 addr;
1045 u8 sig_id;
1046 struct wl3501_card *this = netdev_priv(dev);
1047
1048 pr_debug("entry");
1049loop:
1050 morepkts = 0;
1051 if (!wl3501_esbq_confirm(this))
1052 goto free;
1053 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1054 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1055
1056 switch (sig_id) {
1057 case WL3501_SIG_DEAUTH_IND:
1058 case WL3501_SIG_DISASSOC_IND:
1059 case WL3501_SIG_ALARM:
1060 wl3501_alarm_interrupt(dev, this);
1061 break;
1062 case WL3501_SIG_MD_CONFIRM:
1063 wl3501_md_confirm_interrupt(dev, this, addr);
1064 break;
1065 case WL3501_SIG_MD_IND:
1066 wl3501_md_ind_interrupt(dev, this, addr);
1067 break;
1068 case WL3501_SIG_GET_CONFIRM:
1069 wl3501_get_confirm_interrupt(this, addr,
1070 &this->sig_get_confirm,
1071 sizeof(this->sig_get_confirm));
1072 break;
1073 case WL3501_SIG_PWR_MGMT_CONFIRM:
1074 wl3501_get_confirm_interrupt(this, addr,
1075 &this->sig_pwr_mgmt_confirm,
1076 sizeof(this->sig_pwr_mgmt_confirm));
1077 break;
1078 case WL3501_SIG_START_CONFIRM:
1079 wl3501_start_confirm_interrupt(dev, this, addr);
1080 break;
1081 case WL3501_SIG_SCAN_CONFIRM:
1082 wl3501_mgmt_scan_confirm(this, addr);
1083 break;
1084 case WL3501_SIG_JOIN_CONFIRM:
1085 wl3501_mgmt_join_confirm(dev, addr);
1086 break;
1087 case WL3501_SIG_ASSOC_CONFIRM:
1088 wl3501_assoc_confirm_interrupt(dev, addr);
1089 break;
1090 case WL3501_SIG_AUTH_CONFIRM:
1091 wl3501_auth_confirm_interrupt(this, addr);
1092 break;
1093 case WL3501_SIG_RESYNC_CONFIRM:
1094 wl3501_mgmt_resync(this);
1095 break;
1096 }
1097 wl3501_esbq_confirm_done(this);
1098 morepkts = 1;
1099
1100free:
1101 wl3501_esbq_req_free(this);
1102 if (morepkts)
1103 goto loop;
1104}
1105
1106static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1107{
1108 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1109}
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1124{
1125 struct net_device *dev = dev_id;
1126 struct wl3501_card *this;
1127
1128 this = netdev_priv(dev);
1129 spin_lock(&this->lock);
1130 wl3501_ack_interrupt(this);
1131 wl3501_block_interrupt(this);
1132 wl3501_rx_interrupt(dev);
1133 wl3501_unblock_interrupt(this);
1134 spin_unlock(&this->lock);
1135
1136 return IRQ_HANDLED;
1137}
1138
1139static int wl3501_reset_board(struct wl3501_card *this)
1140{
1141 u8 tmp = 0;
1142 int i, rc = 0;
1143
1144
1145 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1146 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1147 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1148
1149
1150 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1151
1152
1153 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1154
1155 WL3501_NOPLOOP(1024 * 50);
1156
1157 wl3501_unblock_interrupt(this);
1158
1159
1160 for (i = 0; i < 10000; i++) {
1161 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1162
1163 if (tmp == 'W') {
1164
1165 tmp = 'A';
1166 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1167 goto out;
1168 }
1169 WL3501_NOPLOOP(10);
1170 }
1171 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1172 rc = -ENODEV;
1173out:
1174 return rc;
1175}
1176
1177static int wl3501_init_firmware(struct wl3501_card *this)
1178{
1179 u16 ptr, next;
1180 int rc = wl3501_reset_board(this);
1181
1182 if (rc)
1183 goto fail;
1184 this->card_name[0] = '\0';
1185 wl3501_get_from_wla(this, 0x1a00,
1186 this->card_name, sizeof(this->card_name));
1187 this->card_name[sizeof(this->card_name) - 1] = '\0';
1188 this->firmware_date[0] = '\0';
1189 wl3501_get_from_wla(this, 0x1a40,
1190 this->firmware_date, sizeof(this->firmware_date));
1191 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1192
1193 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1194
1195 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1196 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1197 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1198 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1199 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1200 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1201 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1202 this->esbq_req_end += this->esbq_req_start;
1203 this->esbq_confirm = this->esbq_confirm_start;
1204 this->esbq_confirm_end += this->esbq_confirm_start;
1205
1206 this->tx_buffer_cnt = 1;
1207 ptr = this->tx_buffer_head;
1208 next = ptr + WL3501_BLKSZ;
1209 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1210 this->tx_buffer_cnt++;
1211 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1212 ptr = next;
1213 next = ptr + WL3501_BLKSZ;
1214 }
1215 rc = 0;
1216 next = 0;
1217 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1218 this->tx_buffer_tail = ptr;
1219out:
1220 return rc;
1221fail:
1222 printk(KERN_WARNING "%s: failed!\n", __func__);
1223 goto out;
1224}
1225
1226static int wl3501_close(struct net_device *dev)
1227{
1228 struct wl3501_card *this = netdev_priv(dev);
1229 int rc = -ENODEV;
1230 unsigned long flags;
1231 struct pcmcia_device *link;
1232 link = this->p_dev;
1233
1234 spin_lock_irqsave(&this->lock, flags);
1235 link->open--;
1236
1237
1238 netif_stop_queue(dev);
1239 wl3501_ack_interrupt(this);
1240
1241
1242 wl3501_block_interrupt(this);
1243
1244 rc = 0;
1245 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1246 spin_unlock_irqrestore(&this->lock, flags);
1247 return rc;
1248}
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258static int wl3501_reset(struct net_device *dev)
1259{
1260 struct wl3501_card *this = netdev_priv(dev);
1261 int rc = -ENODEV;
1262 unsigned long flags;
1263
1264 spin_lock_irqsave(&this->lock, flags);
1265 wl3501_block_interrupt(this);
1266
1267 if (wl3501_init_firmware(this)) {
1268 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1269 dev->name);
1270
1271 free_irq(dev->irq, dev);
1272 goto out;
1273 }
1274
1275
1276
1277
1278 netif_stop_queue(dev);
1279 this->adhoc_times = 0;
1280 wl3501_ack_interrupt(this);
1281 wl3501_unblock_interrupt(this);
1282 wl3501_mgmt_scan(this, 100);
1283 pr_debug("%s: device reset", dev->name);
1284 rc = 0;
1285out:
1286 spin_unlock_irqrestore(&this->lock, flags);
1287 return rc;
1288}
1289
1290static void wl3501_tx_timeout(struct net_device *dev)
1291{
1292 struct net_device_stats *stats = &dev->stats;
1293 int rc;
1294
1295 stats->tx_errors++;
1296 rc = wl3501_reset(dev);
1297 if (rc)
1298 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1299 dev->name, rc);
1300 else {
1301 netif_trans_update(dev);
1302 netif_wake_queue(dev);
1303 }
1304}
1305
1306
1307
1308
1309
1310
1311static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1312 struct net_device *dev)
1313{
1314 int enabled, rc;
1315 struct wl3501_card *this = netdev_priv(dev);
1316 unsigned long flags;
1317
1318 spin_lock_irqsave(&this->lock, flags);
1319 enabled = wl3501_block_interrupt(this);
1320 rc = wl3501_send_pkt(this, skb->data, skb->len);
1321 if (enabled)
1322 wl3501_unblock_interrupt(this);
1323 if (rc) {
1324 ++dev->stats.tx_dropped;
1325 netif_stop_queue(dev);
1326 } else {
1327 ++dev->stats.tx_packets;
1328 dev->stats.tx_bytes += skb->len;
1329 kfree_skb(skb);
1330
1331 if (this->tx_buffer_cnt < 2)
1332 netif_stop_queue(dev);
1333 }
1334 spin_unlock_irqrestore(&this->lock, flags);
1335 return NETDEV_TX_OK;
1336}
1337
1338static int wl3501_open(struct net_device *dev)
1339{
1340 int rc = -ENODEV;
1341 struct wl3501_card *this = netdev_priv(dev);
1342 unsigned long flags;
1343 struct pcmcia_device *link;
1344 link = this->p_dev;
1345
1346 spin_lock_irqsave(&this->lock, flags);
1347 if (!pcmcia_dev_present(link))
1348 goto out;
1349 netif_device_attach(dev);
1350 link->open++;
1351
1352
1353 pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1354 if (wl3501_init_firmware(this))
1355 goto fail;
1356
1357 this->adhoc_times = 0;
1358
1359 wl3501_ack_interrupt(this);
1360
1361
1362 wl3501_unblock_interrupt(this);
1363 wl3501_mgmt_scan(this, 100);
1364 rc = 0;
1365 pr_debug("%s: WL3501 opened", dev->name);
1366 printk(KERN_INFO "%s: Card Name: %s\n"
1367 "%s: Firmware Date: %s\n",
1368 dev->name, this->card_name,
1369 dev->name, this->firmware_date);
1370out:
1371 spin_unlock_irqrestore(&this->lock, flags);
1372 return rc;
1373fail:
1374 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1375 goto out;
1376}
1377
1378static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1379{
1380 struct wl3501_card *this = netdev_priv(dev);
1381 struct iw_statistics *wstats = &this->wstats;
1382 u32 value;
1383
1384 memset(wstats, 0, sizeof(*wstats));
1385 wstats->status = netif_running(dev);
1386 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1387 &value, sizeof(value)))
1388 wstats->discard.code += value;
1389 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1390 &value, sizeof(value)))
1391 wstats->discard.code += value;
1392 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1393 &value, sizeof(value)))
1394 wstats->discard.code += value;
1395 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1396 &value, sizeof(value)))
1397 wstats->discard.retries = value;
1398 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1399 &value, sizeof(value)))
1400 wstats->discard.misc += value;
1401 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1402 &value, sizeof(value)))
1403 wstats->discard.misc += value;
1404 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1405 &value, sizeof(value)))
1406 wstats->discard.misc += value;
1407 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1408 &value, sizeof(value)))
1409 wstats->discard.misc += value;
1410 return wstats;
1411}
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421static void wl3501_detach(struct pcmcia_device *link)
1422{
1423 struct net_device *dev = link->priv;
1424
1425
1426
1427
1428
1429 while (link->open > 0)
1430 wl3501_close(dev);
1431
1432 netif_device_detach(dev);
1433 wl3501_release(link);
1434
1435 unregister_netdev(dev);
1436
1437 if (link->priv)
1438 free_netdev(link->priv);
1439}
1440
1441static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1442 union iwreq_data *wrqu, char *extra)
1443{
1444 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1445 return 0;
1446}
1447
1448static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1449 union iwreq_data *wrqu, char *extra)
1450{
1451 struct wl3501_card *this = netdev_priv(dev);
1452 int channel = wrqu->freq.m;
1453 int rc = -EINVAL;
1454
1455 if (iw_valid_channel(this->reg_domain, channel)) {
1456 this->chan = channel;
1457 rc = wl3501_reset(dev);
1458 }
1459 return rc;
1460}
1461
1462static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1463 union iwreq_data *wrqu, char *extra)
1464{
1465 struct wl3501_card *this = netdev_priv(dev);
1466
1467 wrqu->freq.m = 100000 *
1468 ieee80211_channel_to_frequency(this->chan, NL80211_BAND_2GHZ);
1469 wrqu->freq.e = 1;
1470 return 0;
1471}
1472
1473static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1474 union iwreq_data *wrqu, char *extra)
1475{
1476 int rc = -EINVAL;
1477
1478 if (wrqu->mode == IW_MODE_INFRA ||
1479 wrqu->mode == IW_MODE_ADHOC ||
1480 wrqu->mode == IW_MODE_AUTO) {
1481 struct wl3501_card *this = netdev_priv(dev);
1482
1483 this->net_type = wrqu->mode;
1484 rc = wl3501_reset(dev);
1485 }
1486 return rc;
1487}
1488
1489static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1490 union iwreq_data *wrqu, char *extra)
1491{
1492 struct wl3501_card *this = netdev_priv(dev);
1493
1494 wrqu->mode = this->net_type;
1495 return 0;
1496}
1497
1498static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1499 union iwreq_data *wrqu, char *extra)
1500{
1501 struct wl3501_card *this = netdev_priv(dev);
1502
1503 wrqu->sens.value = this->rssi;
1504 wrqu->sens.disabled = !wrqu->sens.value;
1505 wrqu->sens.fixed = 1;
1506 return 0;
1507}
1508
1509static int wl3501_get_range(struct net_device *dev,
1510 struct iw_request_info *info,
1511 union iwreq_data *wrqu, char *extra)
1512{
1513 struct iw_range *range = (struct iw_range *)extra;
1514
1515
1516 wrqu->data.length = sizeof(*range);
1517
1518
1519 memset(range, 0, sizeof(*range));
1520
1521
1522 range->we_version_compiled = WIRELESS_EXT;
1523 range->we_version_source = 1;
1524 range->throughput = 2 * 1000 * 1000;
1525
1526 return 0;
1527}
1528
1529static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1530 union iwreq_data *wrqu, char *extra)
1531{
1532 struct wl3501_card *this = netdev_priv(dev);
1533 int rc = -EINVAL;
1534
1535
1536 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1537 goto out;
1538 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data)) {
1539
1540 } else
1541 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1542
1543 rc = 0;
1544out:
1545 return rc;
1546}
1547
1548static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1549 union iwreq_data *wrqu, char *extra)
1550{
1551 struct wl3501_card *this = netdev_priv(dev);
1552
1553 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1554 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1555 return 0;
1556}
1557
1558static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1559 union iwreq_data *wrqu, char *extra)
1560{
1561
1562
1563
1564 return wl3501_reset(dev);
1565}
1566
1567static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1568 union iwreq_data *wrqu, char *extra)
1569{
1570 struct wl3501_card *this = netdev_priv(dev);
1571 int i;
1572 char *current_ev = extra;
1573 struct iw_event iwe;
1574
1575 for (i = 0; i < this->bss_cnt; ++i) {
1576 iwe.cmd = SIOCGIWAP;
1577 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1578 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
1579 current_ev = iwe_stream_add_event(info, current_ev,
1580 extra + IW_SCAN_MAX_DATA,
1581 &iwe, IW_EV_ADDR_LEN);
1582 iwe.cmd = SIOCGIWESSID;
1583 iwe.u.data.flags = 1;
1584 iwe.u.data.length = this->bss_set[i].ssid.el.len;
1585 current_ev = iwe_stream_add_point(info, current_ev,
1586 extra + IW_SCAN_MAX_DATA,
1587 &iwe,
1588 this->bss_set[i].ssid.essid);
1589 iwe.cmd = SIOCGIWMODE;
1590 iwe.u.mode = this->bss_set[i].bss_type;
1591 current_ev = iwe_stream_add_event(info, current_ev,
1592 extra + IW_SCAN_MAX_DATA,
1593 &iwe, IW_EV_UINT_LEN);
1594 iwe.cmd = SIOCGIWFREQ;
1595 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1596 iwe.u.freq.e = 0;
1597 current_ev = iwe_stream_add_event(info, current_ev,
1598 extra + IW_SCAN_MAX_DATA,
1599 &iwe, IW_EV_FREQ_LEN);
1600 iwe.cmd = SIOCGIWENCODE;
1601 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1602 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1603 else
1604 iwe.u.data.flags = IW_ENCODE_DISABLED;
1605 iwe.u.data.length = 0;
1606 current_ev = iwe_stream_add_point(info, current_ev,
1607 extra + IW_SCAN_MAX_DATA,
1608 &iwe, NULL);
1609 }
1610
1611 wrqu->data.length = (current_ev - extra);
1612 wrqu->data.flags = 0;
1613 return 0;
1614}
1615
1616static int wl3501_set_essid(struct net_device *dev,
1617 struct iw_request_info *info,
1618 union iwreq_data *wrqu, char *extra)
1619{
1620 struct wl3501_card *this = netdev_priv(dev);
1621
1622 if (wrqu->data.flags) {
1623 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1624 &this->essid.el,
1625 extra, wrqu->data.length);
1626 } else {
1627 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1628 &this->essid.el, "ANY", 3);
1629 }
1630 return wl3501_reset(dev);
1631}
1632
1633static int wl3501_get_essid(struct net_device *dev,
1634 struct iw_request_info *info,
1635 union iwreq_data *wrqu, char *extra)
1636{
1637 struct wl3501_card *this = netdev_priv(dev);
1638 unsigned long flags;
1639
1640 spin_lock_irqsave(&this->lock, flags);
1641 wrqu->essid.flags = 1;
1642 wrqu->essid.length = this->essid.el.len;
1643 memcpy(extra, this->essid.essid, this->essid.el.len);
1644 spin_unlock_irqrestore(&this->lock, flags);
1645 return 0;
1646}
1647
1648static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1649 union iwreq_data *wrqu, char *extra)
1650{
1651 struct wl3501_card *this = netdev_priv(dev);
1652
1653 if (wrqu->data.length > sizeof(this->nick))
1654 return -E2BIG;
1655 strlcpy(this->nick, extra, wrqu->data.length);
1656 return 0;
1657}
1658
1659static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1660 union iwreq_data *wrqu, char *extra)
1661{
1662 struct wl3501_card *this = netdev_priv(dev);
1663
1664 strlcpy(extra, this->nick, 32);
1665 wrqu->data.length = strlen(extra);
1666 return 0;
1667}
1668
1669static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1670 union iwreq_data *wrqu, char *extra)
1671{
1672
1673
1674
1675
1676
1677 wrqu->bitrate.value = 2000000;
1678 wrqu->bitrate.fixed = 1;
1679 return 0;
1680}
1681
1682static int wl3501_get_rts_threshold(struct net_device *dev,
1683 struct iw_request_info *info,
1684 union iwreq_data *wrqu, char *extra)
1685{
1686 u16 threshold;
1687 struct wl3501_card *this = netdev_priv(dev);
1688 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1689 &threshold, sizeof(threshold));
1690 if (!rc) {
1691 wrqu->rts.value = threshold;
1692 wrqu->rts.disabled = threshold >= 2347;
1693 wrqu->rts.fixed = 1;
1694 }
1695 return rc;
1696}
1697
1698static int wl3501_get_frag_threshold(struct net_device *dev,
1699 struct iw_request_info *info,
1700 union iwreq_data *wrqu, char *extra)
1701{
1702 u16 threshold;
1703 struct wl3501_card *this = netdev_priv(dev);
1704 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1705 &threshold, sizeof(threshold));
1706 if (!rc) {
1707 wrqu->frag.value = threshold;
1708 wrqu->frag.disabled = threshold >= 2346;
1709 wrqu->frag.fixed = 1;
1710 }
1711 return rc;
1712}
1713
1714static int wl3501_get_txpow(struct net_device *dev,
1715 struct iw_request_info *info,
1716 union iwreq_data *wrqu, char *extra)
1717{
1718 u16 txpow;
1719 struct wl3501_card *this = netdev_priv(dev);
1720 int rc = wl3501_get_mib_value(this,
1721 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1722 &txpow, sizeof(txpow));
1723 if (!rc) {
1724 wrqu->txpower.value = txpow;
1725 wrqu->txpower.disabled = 0;
1726
1727
1728
1729
1730 wrqu->txpower.fixed = 0;
1731 wrqu->txpower.flags = IW_TXPOW_MWATT;
1732 }
1733 return rc;
1734}
1735
1736static int wl3501_get_retry(struct net_device *dev,
1737 struct iw_request_info *info,
1738 union iwreq_data *wrqu, char *extra)
1739{
1740 u8 retry;
1741 struct wl3501_card *this = netdev_priv(dev);
1742 int rc = wl3501_get_mib_value(this,
1743 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1744 &retry, sizeof(retry));
1745 if (rc)
1746 goto out;
1747 if (wrqu->retry.flags & IW_RETRY_LONG) {
1748 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1749 goto set_value;
1750 }
1751 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1752 &retry, sizeof(retry));
1753 if (rc)
1754 goto out;
1755 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1756set_value:
1757 wrqu->retry.value = retry;
1758 wrqu->retry.disabled = 0;
1759out:
1760 return rc;
1761}
1762
1763static int wl3501_get_encode(struct net_device *dev,
1764 struct iw_request_info *info,
1765 union iwreq_data *wrqu, char *extra)
1766{
1767 u8 implemented, restricted, keys[100], len_keys, tocopy;
1768 struct wl3501_card *this = netdev_priv(dev);
1769 int rc = wl3501_get_mib_value(this,
1770 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1771 &implemented, sizeof(implemented));
1772 if (rc)
1773 goto out;
1774 if (!implemented) {
1775 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1776 goto out;
1777 }
1778 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1779 &restricted, sizeof(restricted));
1780 if (rc)
1781 goto out;
1782 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1783 IW_ENCODE_OPEN;
1784 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1785 &len_keys, sizeof(len_keys));
1786 if (rc)
1787 goto out;
1788 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1789 keys, len_keys);
1790 if (rc)
1791 goto out;
1792 tocopy = min_t(u16, len_keys, wrqu->encoding.length);
1793 tocopy = min_t(u8, tocopy, 100);
1794 wrqu->encoding.length = tocopy;
1795 memcpy(extra, keys, tocopy);
1796out:
1797 return rc;
1798}
1799
1800static int wl3501_get_power(struct net_device *dev,
1801 struct iw_request_info *info,
1802 union iwreq_data *wrqu, char *extra)
1803{
1804 u8 pwr_state;
1805 struct wl3501_card *this = netdev_priv(dev);
1806 int rc = wl3501_get_mib_value(this,
1807 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1808 &pwr_state, sizeof(pwr_state));
1809 if (rc)
1810 goto out;
1811 wrqu->power.disabled = !pwr_state;
1812 wrqu->power.flags = IW_POWER_ON;
1813out:
1814 return rc;
1815}
1816
1817static const iw_handler wl3501_handler[] = {
1818 IW_HANDLER(SIOCGIWNAME, wl3501_get_name),
1819 IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq),
1820 IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq),
1821 IW_HANDLER(SIOCSIWMODE, wl3501_set_mode),
1822 IW_HANDLER(SIOCGIWMODE, wl3501_get_mode),
1823 IW_HANDLER(SIOCGIWSENS, wl3501_get_sens),
1824 IW_HANDLER(SIOCGIWRANGE, wl3501_get_range),
1825 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1826 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1827 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1828 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1829 IW_HANDLER(SIOCSIWAP, wl3501_set_wap),
1830 IW_HANDLER(SIOCGIWAP, wl3501_get_wap),
1831 IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan),
1832 IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan),
1833 IW_HANDLER(SIOCSIWESSID, wl3501_set_essid),
1834 IW_HANDLER(SIOCGIWESSID, wl3501_get_essid),
1835 IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick),
1836 IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick),
1837 IW_HANDLER(SIOCGIWRATE, wl3501_get_rate),
1838 IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold),
1839 IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold),
1840 IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow),
1841 IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry),
1842 IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode),
1843 IW_HANDLER(SIOCGIWPOWER, wl3501_get_power),
1844};
1845
1846static const struct iw_handler_def wl3501_handler_def = {
1847 .num_standard = ARRAY_SIZE(wl3501_handler),
1848 .standard = (iw_handler *)wl3501_handler,
1849 .get_wireless_stats = wl3501_get_wireless_stats,
1850};
1851
1852static const struct net_device_ops wl3501_netdev_ops = {
1853 .ndo_open = wl3501_open,
1854 .ndo_stop = wl3501_close,
1855 .ndo_start_xmit = wl3501_hard_start_xmit,
1856 .ndo_tx_timeout = wl3501_tx_timeout,
1857 .ndo_set_mac_address = eth_mac_addr,
1858 .ndo_validate_addr = eth_validate_addr,
1859};
1860
1861static int wl3501_probe(struct pcmcia_device *p_dev)
1862{
1863 struct net_device *dev;
1864 struct wl3501_card *this;
1865
1866
1867 p_dev->resource[0]->end = 16;
1868 p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8;
1869
1870
1871 p_dev->config_flags = CONF_ENABLE_IRQ;
1872 p_dev->config_index = 1;
1873
1874 dev = alloc_etherdev(sizeof(struct wl3501_card));
1875 if (!dev)
1876 goto out_link;
1877
1878
1879 dev->netdev_ops = &wl3501_netdev_ops;
1880 dev->watchdog_timeo = 5 * HZ;
1881
1882 this = netdev_priv(dev);
1883 this->wireless_data.spy_data = &this->spy_data;
1884 this->p_dev = p_dev;
1885 dev->wireless_data = &this->wireless_data;
1886 dev->wireless_handlers = &wl3501_handler_def;
1887 netif_stop_queue(dev);
1888 p_dev->priv = dev;
1889
1890 return wl3501_config(p_dev);
1891out_link:
1892 return -ENOMEM;
1893}
1894
1895static int wl3501_config(struct pcmcia_device *link)
1896{
1897 struct net_device *dev = link->priv;
1898 int i = 0, j, ret;
1899 struct wl3501_card *this;
1900
1901
1902
1903
1904 link->io_lines = 5;
1905
1906 for (j = 0x280; j < 0x400; j += 0x20) {
1907
1908
1909 link->resource[0]->start = j;
1910 link->resource[1]->start = link->resource[0]->start + 0x10;
1911 i = pcmcia_request_io(link);
1912 if (i == 0)
1913 break;
1914 }
1915 if (i != 0)
1916 goto failed;
1917
1918
1919
1920
1921 ret = pcmcia_request_irq(link, wl3501_interrupt);
1922 if (ret)
1923 goto failed;
1924
1925 ret = pcmcia_enable_device(link);
1926 if (ret)
1927 goto failed;
1928
1929 dev->irq = link->irq;
1930 dev->base_addr = link->resource[0]->start;
1931 SET_NETDEV_DEV(dev, &link->dev);
1932 if (register_netdev(dev)) {
1933 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1934 goto failed;
1935 }
1936
1937 this = netdev_priv(dev);
1938
1939 this->base_addr = dev->base_addr;
1940
1941 if (!wl3501_get_flash_mac_addr(this)) {
1942 printk(KERN_WARNING "%s: Can't read MAC addr in flash ROM?\n",
1943 dev->name);
1944 unregister_netdev(dev);
1945 goto failed;
1946 }
1947
1948 for (i = 0; i < 6; i++)
1949 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
1950
1951
1952 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
1953 "MAC addr in flash ROM:%pM\n",
1954 dev->name, this->base_addr, (int)dev->irq,
1955 dev->dev_addr);
1956
1957
1958
1959 this->net_type = IW_MODE_INFRA;
1960 this->bss_cnt = 0;
1961 this->join_sta_bss = 0;
1962 this->adhoc_times = 0;
1963 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
1964 "ANY", 3);
1965 this->card_name[0] = '\0';
1966 this->firmware_date[0] = '\0';
1967 this->rssi = 255;
1968 this->chan = iw_default_channel(this->reg_domain);
1969 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
1970 spin_lock_init(&this->lock);
1971 init_waitqueue_head(&this->wait);
1972 netif_start_queue(dev);
1973 return 0;
1974
1975failed:
1976 wl3501_release(link);
1977 return -ENODEV;
1978}
1979
1980static void wl3501_release(struct pcmcia_device *link)
1981{
1982 pcmcia_disable_device(link);
1983}
1984
1985static int wl3501_suspend(struct pcmcia_device *link)
1986{
1987 struct net_device *dev = link->priv;
1988
1989 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
1990 if (link->open)
1991 netif_device_detach(dev);
1992
1993 return 0;
1994}
1995
1996static int wl3501_resume(struct pcmcia_device *link)
1997{
1998 struct net_device *dev = link->priv;
1999
2000 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
2001 if (link->open) {
2002 wl3501_reset(dev);
2003 netif_device_attach(dev);
2004 }
2005
2006 return 0;
2007}
2008
2009
2010static const struct pcmcia_device_id wl3501_ids[] = {
2011 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2012 PCMCIA_DEVICE_NULL
2013};
2014MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2015
2016static struct pcmcia_driver wl3501_driver = {
2017 .owner = THIS_MODULE,
2018 .name = "wl3501_cs",
2019 .probe = wl3501_probe,
2020 .remove = wl3501_detach,
2021 .id_table = wl3501_ids,
2022 .suspend = wl3501_suspend,
2023 .resume = wl3501_resume,
2024};
2025module_pcmcia_driver(wl3501_driver);
2026
2027MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2028 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2029 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2030MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2031MODULE_LICENSE("GPL");
2032
