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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux...
[linux/fpc-iii.git] / drivers / net / wireless / wl3501_cs.c
blobd5c371d77ddf238d00e6ce7c3e46e2c6a4a6136b
1 /*
2 * WL3501 Wireless LAN PCMCIA Card Driver for Linux
3 * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw
4 * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
5 * Wireless extensions in 2.4 by Gustavo Niemeyer <niemeyer@conectiva.com>
6 *
7 * References used by Fox Chen while writing the original driver for 2.0.30:
8 *
9 * 1. WL24xx packet drivers (tooasm.asm)
10 * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO
11 * 3. IEEE 802.11
12 * 4. Linux network driver (/usr/src/linux/drivers/net)
13 * 5. ISA card driver - wl24.c
14 * 6. Linux PCMCIA skeleton driver - skeleton.c
15 * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c
16 *
17 * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12
18 * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode.
19 * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null
20 * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct
21 * ETHER/IP/UDP/TCP header, and acknowledgement overhead)
22 *
23 * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode,
24 * 173 Kbytes/s in TCP.
25 *
26 * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode
27 * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60)
28 */
29
30 #include <linux/delay.h>
31 #include <linux/types.h>
32 #include <linux/interrupt.h>
33 #include <linux/in.h>
34 #include <linux/kernel.h>
35 #include <linux/module.h>
36 #include <linux/fcntl.h>
37 #include <linux/if_arp.h>
38 #include <linux/ioport.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/skbuff.h>
42 #include <linux/slab.h>
43 #include <linux/string.h>
44 #include <linux/wireless.h>
45 #include <net/cfg80211.h>
46
47 #include <net/iw_handler.h>
48
49 #include <pcmcia/cistpl.h>
50 #include <pcmcia/cisreg.h>
51 #include <pcmcia/ds.h>
52
53 #include <asm/io.h>
54 #include <asm/uaccess.h>
55
56 #include "wl3501.h"
57
58 #ifndef __i386__
59 #define slow_down_io()
60 #endif
61
62 /* For rough constant delay */
63 #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
64
65
66
67 #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
68 #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
69 #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
70
71 #define WL3501_RELEASE_TIMEOUT (25 * HZ)
72 #define WL3501_MAX_ADHOC_TRIES 16
73
74 #define WL3501_RESUME 0
75 #define WL3501_SUSPEND 1
76
77 static int wl3501_config(struct pcmcia_device *link);
78 static void wl3501_release(struct pcmcia_device *link);
79
80 static const struct {
81 int reg_domain;
82 int min, max, deflt;
83 } iw_channel_table[] = {
84 {
85 .reg_domain = IW_REG_DOMAIN_FCC,
86 .min = 1,
87 .max = 11,
88 .deflt = 1,
89 },
90 {
91 .reg_domain = IW_REG_DOMAIN_DOC,
92 .min = 1,
93 .max = 11,
94 .deflt = 1,
95 },
96 {
97 .reg_domain = IW_REG_DOMAIN_ETSI,
98 .min = 1,
99 .max = 13,
100 .deflt = 1,
101 },
102 {
103 .reg_domain = IW_REG_DOMAIN_SPAIN,
104 .min = 10,
105 .max = 11,
106 .deflt = 10,
107 },
108 {
109 .reg_domain = IW_REG_DOMAIN_FRANCE,
110 .min = 10,
111 .max = 13,
112 .deflt = 10,
113 },
114 {
115 .reg_domain = IW_REG_DOMAIN_MKK,
116 .min = 14,
117 .max = 14,
118 .deflt = 14,
119 },
120 {
121 .reg_domain = IW_REG_DOMAIN_MKK1,
122 .min = 1,
123 .max = 14,
124 .deflt = 1,
125 },
126 {
127 .reg_domain = IW_REG_DOMAIN_ISRAEL,
128 .min = 3,
129 .max = 9,
130 .deflt = 9,
131 },
132 };
133
134 /**
135 * iw_valid_channel - validate channel in regulatory domain
136 * @reg_comain - regulatory domain
137 * @channel - channel to validate
138 *
139 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
140 */
141 static int iw_valid_channel(int reg_domain, int channel)
142 {
143 int i, rc = 0;
144
145 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
146 if (reg_domain == iw_channel_table[i].reg_domain) {
147 rc = channel >= iw_channel_table[i].min &&
148 channel <= iw_channel_table[i].max;
149 break;
150 }
151 return rc;
152 }
153
154 /**
155 * iw_default_channel - get default channel for a regulatory domain
156 * @reg_comain - regulatory domain
157 *
158 * Returns the default channel for a regulatory domain
159 */
160 static int iw_default_channel(int reg_domain)
161 {
162 int i, rc = 1;
163
164 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
165 if (reg_domain == iw_channel_table[i].reg_domain) {
166 rc = iw_channel_table[i].deflt;
167 break;
168 }
169 return rc;
170 }
171
172 static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
173 struct iw_mgmt_info_element *el,
174 void *value, int len)
175 {
176 el->id = id;
177 el->len = len;
178 memcpy(el->data, value, len);
179 }
180
181 static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
182 struct iw_mgmt_info_element *from)
183 {
184 iw_set_mgmt_info_element(from->id, to, from->data, from->len);
185 }
186
187 static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
188 {
189 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
190 }
191
192 /*
193 * Get Ethernet MAC address.
194 *
195 * WARNING: We switch to FPAGE0 and switc back again.
196 * Making sure there is no other WL function beening called by ISR.
197 */
198 static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
199 {
200 int base_addr = this->base_addr;
201
202 /* get MAC addr */
203 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
204 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
205 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
206
207 /* wait for reading EEPROM */
208 WL3501_NOPLOOP(100);
209 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
210 WL3501_NOPLOOP(100);
211 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
212 WL3501_NOPLOOP(100);
213 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
214 WL3501_NOPLOOP(100);
215 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
216 WL3501_NOPLOOP(100);
217 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
218 WL3501_NOPLOOP(100);
219 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
220 WL3501_NOPLOOP(100);
221 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
222 WL3501_NOPLOOP(100);
223 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
224 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
225 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
226 WL3501_NOPLOOP(100);
227 this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
228 WL3501_NOPLOOP(100);
229 this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
230 /* switch to SRAM Page 0 (for safety) */
231 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
232
233 /* The MAC addr should be 00:60:... */
234 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
235 }
236
237 /**
238 * wl3501_set_to_wla - Move 'size' bytes from PC to card
239 * @dest: Card addressing space
240 * @src: PC addressing space
241 * @size: Bytes to move
242 *
243 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
244 */
245 static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
246 int size)
247 {
248 /* switch to SRAM Page 0 */
249 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
250 WL3501_BSS_SPAGE0);
251 /* set LMAL and LMAH */
252 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
253 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
254
255 /* rep out to Port A */
256 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
257 }
258
259 /**
260 * wl3501_get_from_wla - Move 'size' bytes from card to PC
261 * @src: Card addressing space
262 * @dest: PC addressing space
263 * @size: Bytes to move
264 *
265 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
266 */
267 static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
268 int size)
269 {
270 /* switch to SRAM Page 0 */
271 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
272 WL3501_BSS_SPAGE0);
273 /* set LMAL and LMAH */
274 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
275 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
276
277 /* rep get from Port A */
278 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
279 }
280
281 /*
282 * Get/Allocate a free Tx Data Buffer
283 *
284 * *--------------*-----------------*----------------------------------*
285 * | PLCP | MAC Header | DST SRC Data ... |
286 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
287 * *--------------*-----------------*----------------------------------*
288 * \ \- IEEE 802.11 -/ \-------------- len --------------/
289 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
290 *
291 * Return = Position in Card
292 */
293 static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
294 {
295 u16 next, blk_cnt = 0, zero = 0;
296 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
297 u16 ret = 0;
298
299 if (full_len > this->tx_buffer_cnt * 254)
300 goto out;
301 ret = this->tx_buffer_head;
302 while (full_len) {
303 if (full_len < 254)
304 full_len = 0;
305 else
306 full_len -= 254;
307 wl3501_get_from_wla(this, this->tx_buffer_head, &next,
308 sizeof(next));
309 if (!full_len)
310 wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
311 sizeof(zero));
312 this->tx_buffer_head = next;
313 blk_cnt++;
314 /* if buffer is not enough */
315 if (!next && full_len) {
316 this->tx_buffer_head = ret;
317 ret = 0;
318 goto out;
319 }
320 }
321 this->tx_buffer_cnt -= blk_cnt;
322 out:
323 return ret;
324 }
325
326 /*
327 * Free an allocated Tx Buffer. ptr must be correct position.
328 */
329 static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
330 {
331 /* check if all space is not free */
332 if (!this->tx_buffer_head)
333 this->tx_buffer_head = ptr;
334 else
335 wl3501_set_to_wla(this, this->tx_buffer_tail,
336 &ptr, sizeof(ptr));
337 while (ptr) {
338 u16 next;
339
340 this->tx_buffer_cnt++;
341 wl3501_get_from_wla(this, ptr, &next, sizeof(next));
342 this->tx_buffer_tail = ptr;
343 ptr = next;
344 }
345 }
346
347 static int wl3501_esbq_req_test(struct wl3501_card *this)
348 {
349 u8 tmp = 0;
350
351 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
352 return tmp & 0x80;
353 }
354
355 static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
356 {
357 u16 tmp = 0;
358
359 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
360 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
361 this->esbq_req_head += 4;
362 if (this->esbq_req_head >= this->esbq_req_end)
363 this->esbq_req_head = this->esbq_req_start;
364 }
365
366 static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
367 {
368 int rc = -EIO;
369
370 if (wl3501_esbq_req_test(this)) {
371 u16 ptr = wl3501_get_tx_buffer(this, sig_size);
372 if (ptr) {
373 wl3501_set_to_wla(this, ptr, sig, sig_size);
374 wl3501_esbq_req(this, &ptr);
375 rc = 0;
376 }
377 }
378 return rc;
379 }
380
381 static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
382 void *bf, int size)
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 spin_unlock_irqrestore(&this->lock, flags);
399 rc = wait_event_interruptible(this->wait,
400 this->sig_get_confirm.mib_status != 255);
401 if (!rc)
402 memcpy(bf, this->sig_get_confirm.mib_value,
403 size);
404 goto out;
405 }
406 }
407 spin_unlock_irqrestore(&this->lock, flags);
408 out:
409 return rc;
410 }
411
412 static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
413 {
414 struct wl3501_pwr_mgmt_req sig = {
415 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
416 .pwr_save = suspend,
417 .wake_up = !suspend,
418 .receive_dtims = 10,
419 };
420 unsigned long flags;
421 int rc = -EIO;
422
423 spin_lock_irqsave(&this->lock, flags);
424 if (wl3501_esbq_req_test(this)) {
425 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
426 if (ptr) {
427 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
428 wl3501_esbq_req(this, &ptr);
429 this->sig_pwr_mgmt_confirm.status = 255;
430 spin_unlock_irqrestore(&this->lock, flags);
431 rc = wait_event_interruptible(this->wait,
432 this->sig_pwr_mgmt_confirm.status != 255);
433 printk(KERN_INFO "%s: %s status=%d\n", __func__,
434 suspend ? "suspend" : "resume",
435 this->sig_pwr_mgmt_confirm.status);
436 goto out;
437 }
438 }
439 spin_unlock_irqrestore(&this->lock, flags);
440 out:
441 return rc;
442 }
443
444 /**
445 * wl3501_send_pkt - Send a packet.
446 * @this - card
447 *
448 * Send a packet.
449 *
450 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
451 * data[6] - data[11] is Src MAC Addr)
452 * Ref: IEEE 802.11
453 */
454 static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
455 {
456 u16 bf, sig_bf, next, tmplen, pktlen;
457 struct wl3501_md_req sig = {
458 .sig_id = WL3501_SIG_MD_REQ,
459 };
460 u8 *pdata = (char *)data;
461 int rc = -EIO;
462
463 if (wl3501_esbq_req_test(this)) {
464 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
465 rc = -ENOMEM;
466 if (!sig_bf) /* No free buffer available */
467 goto out;
468 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
469 if (!bf) {
470 /* No free buffer available */
471 wl3501_free_tx_buffer(this, sig_bf);
472 goto out;
473 }
474 rc = 0;
475 memcpy(&sig.daddr[0], pdata, 12);
476 pktlen = len - 12;
477 pdata += 12;
478 sig.data = bf;
479 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
480 u8 addr4[ETH_ALEN] = {
481 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
482 };
483
484 wl3501_set_to_wla(this, bf + 2 +
485 offsetof(struct wl3501_tx_hdr, addr4),
486 addr4, sizeof(addr4));
487 sig.size = pktlen + 24 + 4 + 6;
488 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
489 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
490 pktlen -= tmplen;
491 } else {
492 tmplen = pktlen;
493 pktlen = 0;
494 }
495 wl3501_set_to_wla(this,
496 bf + 2 + sizeof(struct wl3501_tx_hdr),
497 pdata, tmplen);
498 pdata += tmplen;
499 wl3501_get_from_wla(this, bf, &next, sizeof(next));
500 bf = next;
501 } else {
502 sig.size = pktlen + 24 + 4 - 2;
503 pdata += 2;
504 pktlen -= 2;
505 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
506 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
507 pktlen -= tmplen;
508 } else {
509 tmplen = pktlen;
510 pktlen = 0;
511 }
512 wl3501_set_to_wla(this, bf + 2 +
513 offsetof(struct wl3501_tx_hdr, addr4),
514 pdata, tmplen);
515 pdata += tmplen;
516 wl3501_get_from_wla(this, bf, &next, sizeof(next));
517 bf = next;
518 }
519 while (pktlen > 0) {
520 if (pktlen > 254) {
521 tmplen = 254;
522 pktlen -= 254;
523 } else {
524 tmplen = pktlen;
525 pktlen = 0;
526 }
527 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
528 pdata += tmplen;
529 wl3501_get_from_wla(this, bf, &next, sizeof(next));
530 bf = next;
531 }
532 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
533 wl3501_esbq_req(this, &sig_bf);
534 }
535 out:
536 return rc;
537 }
538
539 static int wl3501_mgmt_resync(struct wl3501_card *this)
540 {
541 struct wl3501_resync_req sig = {
542 .sig_id = WL3501_SIG_RESYNC_REQ,
543 };
544
545 return wl3501_esbq_exec(this, &sig, sizeof(sig));
546 }
547
548 static inline int wl3501_fw_bss_type(struct wl3501_card *this)
549 {
550 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
551 WL3501_NET_TYPE_ADHOC;
552 }
553
554 static inline int wl3501_fw_cap_info(struct wl3501_card *this)
555 {
556 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
557 WL3501_MGMT_CAPABILITY_IBSS;
558 }
559
560 static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
561 {
562 struct wl3501_scan_req sig = {
563 .sig_id = WL3501_SIG_SCAN_REQ,
564 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
565 .probe_delay = 0x10,
566 .min_chan_time = chan_time,
567 .max_chan_time = chan_time,
568 .bss_type = wl3501_fw_bss_type(this),
569 };
570
571 this->bss_cnt = this->join_sta_bss = 0;
572 return wl3501_esbq_exec(this, &sig, sizeof(sig));
573 }
574
575 static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
576 {
577 struct wl3501_join_req sig = {
578 .sig_id = WL3501_SIG_JOIN_REQ,
579 .timeout = 10,
580 .ds_pset = {
581 .el = {
582 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
583 .len = 1,
584 },
585 .chan = this->chan,
586 },
587 };
588
589 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
590 return wl3501_esbq_exec(this, &sig, sizeof(sig));
591 }
592
593 static int wl3501_mgmt_start(struct wl3501_card *this)
594 {
595 struct wl3501_start_req sig = {
596 .sig_id = WL3501_SIG_START_REQ,
597 .beacon_period = 400,
598 .dtim_period = 1,
599 .ds_pset = {
600 .el = {
601 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
602 .len = 1,
603 },
604 .chan = this->chan,
605 },
606 .bss_basic_rset = {
607 .el = {
608 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
609 .len = 2,
610 },
611 .data_rate_labels = {
612 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
613 IW_MGMT_RATE_LABEL_1MBIT,
614 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
615 IW_MGMT_RATE_LABEL_2MBIT,
616 },
617 },
618 .operational_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 .ibss_pset = {
631 .el = {
632 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
633 .len = 2,
634 },
635 .atim_window = 10,
636 },
637 .bss_type = wl3501_fw_bss_type(this),
638 .cap_info = wl3501_fw_cap_info(this),
639 };
640
641 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
642 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
643 return wl3501_esbq_exec(this, &sig, sizeof(sig));
644 }
645
646 static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
647 {
648 u16 i = 0;
649 int matchflag = 0;
650 struct wl3501_scan_confirm sig;
651
652 pr_debug("entry");
653 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
654 if (sig.status == WL3501_STATUS_SUCCESS) {
655 pr_debug("success");
656 if ((this->net_type == IW_MODE_INFRA &&
657 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
658 (this->net_type == IW_MODE_ADHOC &&
659 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
660 this->net_type == IW_MODE_AUTO) {
661 if (!this->essid.el.len)
662 matchflag = 1;
663 else if (this->essid.el.len == 3 &&
664 !memcmp(this->essid.essid, "ANY", 3))
665 matchflag = 1;
666 else if (this->essid.el.len != sig.ssid.el.len)
667 matchflag = 0;
668 else if (memcmp(this->essid.essid, sig.ssid.essid,
669 this->essid.el.len))
670 matchflag = 0;
671 else
672 matchflag = 1;
673 if (matchflag) {
674 for (i = 0; i < this->bss_cnt; i++) {
675 if (ether_addr_equal_unaligned(this->bss_set[i].bssid, sig.bssid)) {
676 matchflag = 0;
677 break;
678 }
679 }
680 }
681 if (matchflag && (i < 20)) {
682 memcpy(&this->bss_set[i].beacon_period,
683 &sig.beacon_period, 73);
684 this->bss_cnt++;
685 this->rssi = sig.rssi;
686 }
687 }
688 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
689 pr_debug("timeout");
690 this->join_sta_bss = 0;
691 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
692 if (!wl3501_mgmt_join(this, i))
693 break;
694 this->join_sta_bss = i;
695 if (this->join_sta_bss == this->bss_cnt) {
696 if (this->net_type == IW_MODE_INFRA)
697 wl3501_mgmt_scan(this, 100);
698 else {
699 this->adhoc_times++;
700 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
701 wl3501_mgmt_start(this);
702 else
703 wl3501_mgmt_scan(this, 100);
704 }
705 }
706 }
707 }
708
709 /**
710 * wl3501_block_interrupt - Mask interrupt from SUTRO
711 * @this - card
712 *
713 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
714 * Return: 1 if interrupt is originally enabled
715 */
716 static int wl3501_block_interrupt(struct wl3501_card *this)
717 {
718 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
719 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
720 WL3501_GCR_ENECINT));
721
722 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
723 return old & WL3501_GCR_ENECINT;
724 }
725
726 /**
727 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
728 * @this - card
729 *
730 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
731 * Return: 1 if interrupt is originally enabled
732 */
733 static int wl3501_unblock_interrupt(struct wl3501_card *this)
734 {
735 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
736 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
737 WL3501_GCR_ENECINT;
738
739 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
740 return old & WL3501_GCR_ENECINT;
741 }
742
743 /**
744 * wl3501_receive - Receive data from Receive Queue.
745 *
746 * Receive data from Receive Queue.
747 *
748 * @this: card
749 * @bf: address of host
750 * @size: size of buffer.
751 */
752 static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
753 {
754 u16 next_addr, next_addr1;
755 u8 *data = bf + 12;
756
757 size -= 12;
758 wl3501_get_from_wla(this, this->start_seg + 2,
759 &next_addr, sizeof(next_addr));
760 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
761 wl3501_get_from_wla(this,
762 this->start_seg +
763 sizeof(struct wl3501_rx_hdr), data,
764 WL3501_BLKSZ -
765 sizeof(struct wl3501_rx_hdr));
766 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
767 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
768 } else {
769 wl3501_get_from_wla(this,
770 this->start_seg +
771 sizeof(struct wl3501_rx_hdr),
772 data, size);
773 size = 0;
774 }
775 while (size > 0) {
776 if (size > WL3501_BLKSZ - 5) {
777 wl3501_get_from_wla(this, next_addr + 5, data,
778 WL3501_BLKSZ - 5);
779 size -= WL3501_BLKSZ - 5;
780 data += WL3501_BLKSZ - 5;
781 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
782 sizeof(next_addr1));
783 next_addr = next_addr1;
784 } else {
785 wl3501_get_from_wla(this, next_addr + 5, data, size);
786 size = 0;
787 }
788 }
789 return 0;
790 }
791
792 static void wl3501_esbq_req_free(struct wl3501_card *this)
793 {
794 u8 tmp;
795 u16 addr;
796
797 if (this->esbq_req_head == this->esbq_req_tail)
798 goto out;
799 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
800 if (!(tmp & 0x80))
801 goto out;
802 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
803 wl3501_free_tx_buffer(this, addr);
804 this->esbq_req_tail += 4;
805 if (this->esbq_req_tail >= this->esbq_req_end)
806 this->esbq_req_tail = this->esbq_req_start;
807 out:
808 return;
809 }
810
811 static int wl3501_esbq_confirm(struct wl3501_card *this)
812 {
813 u8 tmp;
814
815 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
816 return tmp & 0x80;
817 }
818
819 static void wl3501_online(struct net_device *dev)
820 {
821 struct wl3501_card *this = netdev_priv(dev);
822
823 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
824 dev->name, this->bssid);
825 netif_wake_queue(dev);
826 }
827
828 static void wl3501_esbq_confirm_done(struct wl3501_card *this)
829 {
830 u8 tmp = 0;
831
832 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
833 this->esbq_confirm += 4;
834 if (this->esbq_confirm >= this->esbq_confirm_end)
835 this->esbq_confirm = this->esbq_confirm_start;
836 }
837
838 static int wl3501_mgmt_auth(struct wl3501_card *this)
839 {
840 struct wl3501_auth_req sig = {
841 .sig_id = WL3501_SIG_AUTH_REQ,
842 .type = WL3501_SYS_TYPE_OPEN,
843 .timeout = 1000,
844 };
845
846 pr_debug("entry");
847 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
848 return wl3501_esbq_exec(this, &sig, sizeof(sig));
849 }
850
851 static int wl3501_mgmt_association(struct wl3501_card *this)
852 {
853 struct wl3501_assoc_req sig = {
854 .sig_id = WL3501_SIG_ASSOC_REQ,
855 .timeout = 1000,
856 .listen_interval = 5,
857 .cap_info = this->cap_info,
858 };
859
860 pr_debug("entry");
861 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
862 return wl3501_esbq_exec(this, &sig, sizeof(sig));
863 }
864
865 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
866 {
867 struct wl3501_card *this = netdev_priv(dev);
868 struct wl3501_join_confirm sig;
869
870 pr_debug("entry");
871 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
872 if (sig.status == WL3501_STATUS_SUCCESS) {
873 if (this->net_type == IW_MODE_INFRA) {
874 if (this->join_sta_bss < this->bss_cnt) {
875 const int i = this->join_sta_bss;
876 memcpy(this->bssid,
877 this->bss_set[i].bssid, ETH_ALEN);
878 this->chan = this->bss_set[i].ds_pset.chan;
879 iw_copy_mgmt_info_element(&this->keep_essid.el,
880 &this->bss_set[i].ssid.el);
881 wl3501_mgmt_auth(this);
882 }
883 } else {
884 const int i = this->join_sta_bss;
885
886 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
887 this->chan = this->bss_set[i].ds_pset.chan;
888 iw_copy_mgmt_info_element(&this->keep_essid.el,
889 &this->bss_set[i].ssid.el);
890 wl3501_online(dev);
891 }
892 } else {
893 int i;
894 this->join_sta_bss++;
895 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
896 if (!wl3501_mgmt_join(this, i))
897 break;
898 this->join_sta_bss = i;
899 if (this->join_sta_bss == this->bss_cnt) {
900 if (this->net_type == IW_MODE_INFRA)
901 wl3501_mgmt_scan(this, 100);
902 else {
903 this->adhoc_times++;
904 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
905 wl3501_mgmt_start(this);
906 else
907 wl3501_mgmt_scan(this, 100);
908 }
909 }
910 }
911 }
912
913 static inline void wl3501_alarm_interrupt(struct net_device *dev,
914 struct wl3501_card *this)
915 {
916 if (this->net_type == IW_MODE_INFRA) {
917 printk(KERN_INFO "Wireless LAN offline\n");
918 netif_stop_queue(dev);
919 wl3501_mgmt_resync(this);
920 }
921 }
922
923 static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
924 struct wl3501_card *this,
925 u16 addr)
926 {
927 struct wl3501_md_confirm sig;
928
929 pr_debug("entry");
930 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
931 wl3501_free_tx_buffer(this, sig.data);
932 if (netif_queue_stopped(dev))
933 netif_wake_queue(dev);
934 }
935
936 static inline void wl3501_md_ind_interrupt(struct net_device *dev,
937 struct wl3501_card *this, u16 addr)
938 {
939 struct wl3501_md_ind sig;
940 struct sk_buff *skb;
941 u8 rssi, addr4[ETH_ALEN];
942 u16 pkt_len;
943
944 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
945 this->start_seg = sig.data;
946 wl3501_get_from_wla(this,
947 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
948 &rssi, sizeof(rssi));
949 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
950
951 wl3501_get_from_wla(this,
952 sig.data +
953 offsetof(struct wl3501_rx_hdr, addr4),
954 &addr4, sizeof(addr4));
955 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
956 addr4[2] == 0x03 && addr4[4] == 0x00)) {
957 printk(KERN_INFO "Insupported packet type!\n");
958 return;
959 }
960 pkt_len = sig.size + 12 - 24 - 4 - 6;
961
962 skb = dev_alloc_skb(pkt_len + 5);
963
964 if (!skb) {
965 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
966 dev->name, pkt_len);
967 dev->stats.rx_dropped++;
968 } else {
969 skb->dev = dev;
970 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
971 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
972 wl3501_receive(this, skb->data, pkt_len);
973 skb_put(skb, pkt_len);
974 skb->protocol = eth_type_trans(skb, dev);
975 dev->stats.rx_packets++;
976 dev->stats.rx_bytes += skb->len;
977 netif_rx(skb);
978 }
979 }
980
981 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
982 u16 addr, void *sig, int size)
983 {
984 pr_debug("entry");
985 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
986 sizeof(this->sig_get_confirm));
987 wake_up(&this->wait);
988 }
989
990 static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
991 struct wl3501_card *this,
992 u16 addr)
993 {
994 struct wl3501_start_confirm sig;
995
996 pr_debug("entry");
997 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
998 if (sig.status == WL3501_STATUS_SUCCESS)
999 netif_wake_queue(dev);
1000 }
1001
1002 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1003 u16 addr)
1004 {
1005 struct wl3501_card *this = netdev_priv(dev);
1006 struct wl3501_assoc_confirm sig;
1007
1008 pr_debug("entry");
1009 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1010
1011 if (sig.status == WL3501_STATUS_SUCCESS)
1012 wl3501_online(dev);
1013 }
1014
1015 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1016 u16 addr)
1017 {
1018 struct wl3501_auth_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_mgmt_association(this);
1025 else
1026 wl3501_mgmt_resync(this);
1027 }
1028
1029 static inline void wl3501_rx_interrupt(struct net_device *dev)
1030 {
1031 int morepkts;
1032 u16 addr;
1033 u8 sig_id;
1034 struct wl3501_card *this = netdev_priv(dev);
1035
1036 pr_debug("entry");
1037 loop:
1038 morepkts = 0;
1039 if (!wl3501_esbq_confirm(this))
1040 goto free;
1041 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1042 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1043
1044 switch (sig_id) {
1045 case WL3501_SIG_DEAUTH_IND:
1046 case WL3501_SIG_DISASSOC_IND:
1047 case WL3501_SIG_ALARM:
1048 wl3501_alarm_interrupt(dev, this);
1049 break;
1050 case WL3501_SIG_MD_CONFIRM:
1051 wl3501_md_confirm_interrupt(dev, this, addr);
1052 break;
1053 case WL3501_SIG_MD_IND:
1054 wl3501_md_ind_interrupt(dev, this, addr);
1055 break;
1056 case WL3501_SIG_GET_CONFIRM:
1057 wl3501_get_confirm_interrupt(this, addr,
1058 &this->sig_get_confirm,
1059 sizeof(this->sig_get_confirm));
1060 break;
1061 case WL3501_SIG_PWR_MGMT_CONFIRM:
1062 wl3501_get_confirm_interrupt(this, addr,
1063 &this->sig_pwr_mgmt_confirm,
1064 sizeof(this->sig_pwr_mgmt_confirm));
1065 break;
1066 case WL3501_SIG_START_CONFIRM:
1067 wl3501_start_confirm_interrupt(dev, this, addr);
1068 break;
1069 case WL3501_SIG_SCAN_CONFIRM:
1070 wl3501_mgmt_scan_confirm(this, addr);
1071 break;
1072 case WL3501_SIG_JOIN_CONFIRM:
1073 wl3501_mgmt_join_confirm(dev, addr);
1074 break;
1075 case WL3501_SIG_ASSOC_CONFIRM:
1076 wl3501_assoc_confirm_interrupt(dev, addr);
1077 break;
1078 case WL3501_SIG_AUTH_CONFIRM:
1079 wl3501_auth_confirm_interrupt(this, addr);
1080 break;
1081 case WL3501_SIG_RESYNC_CONFIRM:
1082 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1083 break;
1084 }
1085 wl3501_esbq_confirm_done(this);
1086 morepkts = 1;
1087 /* free request if necessary */
1088 free:
1089 wl3501_esbq_req_free(this);
1090 if (morepkts)
1091 goto loop;
1092 }
1093
1094 static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1095 {
1096 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1097 }
1098
1099 /**
1100 * wl3501_interrupt - Hardware interrupt from card.
1101 * @irq - Interrupt number
1102 * @dev_id - net_device
1103 *
1104 * We must acknowledge the interrupt as soon as possible, and block the
1105 * interrupt from the same card immediately to prevent re-entry.
1106 *
1107 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1108 * On the other hand, to prevent SUTRO from malfunctioning, we must
1109 * unlock the SUTRO as soon as possible.
1110 */
1111 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1112 {
1113 struct net_device *dev = dev_id;
1114 struct wl3501_card *this;
1115
1116 this = netdev_priv(dev);
1117 spin_lock(&this->lock);
1118 wl3501_ack_interrupt(this);
1119 wl3501_block_interrupt(this);
1120 wl3501_rx_interrupt(dev);
1121 wl3501_unblock_interrupt(this);
1122 spin_unlock(&this->lock);
1123
1124 return IRQ_HANDLED;
1125 }
1126
1127 static int wl3501_reset_board(struct wl3501_card *this)
1128 {
1129 u8 tmp = 0;
1130 int i, rc = 0;
1131
1132 /* Coreset */
1133 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1134 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1135 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1136
1137 /* Reset SRAM 0x480 to zero */
1138 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1139
1140 /* Start up */
1141 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1142
1143 WL3501_NOPLOOP(1024 * 50);
1144
1145 wl3501_unblock_interrupt(this); /* acme: was commented */
1146
1147 /* Polling Self_Test_Status */
1148 for (i = 0; i < 10000; i++) {
1149 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1150
1151 if (tmp == 'W') {
1152 /* firmware complete all test successfully */
1153 tmp = 'A';
1154 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1155 goto out;
1156 }
1157 WL3501_NOPLOOP(10);
1158 }
1159 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1160 rc = -ENODEV;
1161 out:
1162 return rc;
1163 }
1164
1165 static int wl3501_init_firmware(struct wl3501_card *this)
1166 {
1167 u16 ptr, next;
1168 int rc = wl3501_reset_board(this);
1169
1170 if (rc)
1171 goto fail;
1172 this->card_name[0] = '\0';
1173 wl3501_get_from_wla(this, 0x1a00,
1174 this->card_name, sizeof(this->card_name));
1175 this->card_name[sizeof(this->card_name) - 1] = '\0';
1176 this->firmware_date[0] = '\0';
1177 wl3501_get_from_wla(this, 0x1a40,
1178 this->firmware_date, sizeof(this->firmware_date));
1179 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1180 /* Switch to SRAM Page 0 */
1181 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1182 /* Read parameter from card */
1183 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1184 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1185 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1186 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1187 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1188 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1189 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1190 this->esbq_req_end += this->esbq_req_start;
1191 this->esbq_confirm = this->esbq_confirm_start;
1192 this->esbq_confirm_end += this->esbq_confirm_start;
1193 /* Initial Tx Buffer */
1194 this->tx_buffer_cnt = 1;
1195 ptr = this->tx_buffer_head;
1196 next = ptr + WL3501_BLKSZ;
1197 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1198 this->tx_buffer_cnt++;
1199 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1200 ptr = next;
1201 next = ptr + WL3501_BLKSZ;
1202 }
1203 rc = 0;
1204 next = 0;
1205 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1206 this->tx_buffer_tail = ptr;
1207 out:
1208 return rc;
1209 fail:
1210 printk(KERN_WARNING "%s: failed!\n", __func__);
1211 goto out;
1212 }
1213
1214 static int wl3501_close(struct net_device *dev)
1215 {
1216 struct wl3501_card *this = netdev_priv(dev);
1217 int rc = -ENODEV;
1218 unsigned long flags;
1219 struct pcmcia_device *link;
1220 link = this->p_dev;
1221
1222 spin_lock_irqsave(&this->lock, flags);
1223 link->open--;
1224
1225 /* Stop wl3501_hard_start_xmit() from now on */
1226 netif_stop_queue(dev);
1227 wl3501_ack_interrupt(this);
1228
1229 /* Mask interrupts from the SUTRO */
1230 wl3501_block_interrupt(this);
1231
1232 rc = 0;
1233 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1234 spin_unlock_irqrestore(&this->lock, flags);
1235 return rc;
1236 }
1237
1238 /**
1239 * wl3501_reset - Reset the SUTRO.
1240 * @dev - network device
1241 *
1242 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1243 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1244 * is running. It seems to be dangerous.
1245 */
1246 static int wl3501_reset(struct net_device *dev)
1247 {
1248 struct wl3501_card *this = netdev_priv(dev);
1249 int rc = -ENODEV;
1250
1251 wl3501_block_interrupt(this);
1252
1253 if (wl3501_init_firmware(this)) {
1254 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1255 dev->name);
1256 /* Free IRQ, and mark IRQ as unused */
1257 free_irq(dev->irq, dev);
1258 goto out;
1259 }
1260
1261 /*
1262 * Queue has to be started only when the Card is Started
1263 */
1264 netif_stop_queue(dev);
1265 this->adhoc_times = 0;
1266 wl3501_ack_interrupt(this);
1267 wl3501_unblock_interrupt(this);
1268 wl3501_mgmt_scan(this, 100);
1269 pr_debug("%s: device reset", dev->name);
1270 rc = 0;
1271 out:
1272 return rc;
1273 }
1274
1275 static void wl3501_tx_timeout(struct net_device *dev)
1276 {
1277 struct wl3501_card *this = netdev_priv(dev);
1278 struct net_device_stats *stats = &dev->stats;
1279 unsigned long flags;
1280 int rc;
1281
1282 stats->tx_errors++;
1283 spin_lock_irqsave(&this->lock, flags);
1284 rc = wl3501_reset(dev);
1285 spin_unlock_irqrestore(&this->lock, flags);
1286 if (rc)
1287 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1288 dev->name, rc);
1289 else {
1290 dev->trans_start = jiffies; /* prevent tx timeout */
1291 netif_wake_queue(dev);
1292 }
1293 }
1294
1295 /*
1296 * Return : 0 - OK
1297 * 1 - Could not transmit (dev_queue_xmit will queue it)
1298 * and try to sent it later
1299 */
1300 static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1301 struct net_device *dev)
1302 {
1303 int enabled, rc;
1304 struct wl3501_card *this = netdev_priv(dev);
1305 unsigned long flags;
1306
1307 spin_lock_irqsave(&this->lock, flags);
1308 enabled = wl3501_block_interrupt(this);
1309 rc = wl3501_send_pkt(this, skb->data, skb->len);
1310 if (enabled)
1311 wl3501_unblock_interrupt(this);
1312 if (rc) {
1313 ++dev->stats.tx_dropped;
1314 netif_stop_queue(dev);
1315 } else {
1316 ++dev->stats.tx_packets;
1317 dev->stats.tx_bytes += skb->len;
1318 kfree_skb(skb);
1319
1320 if (this->tx_buffer_cnt < 2)
1321 netif_stop_queue(dev);
1322 }
1323 spin_unlock_irqrestore(&this->lock, flags);
1324 return NETDEV_TX_OK;
1325 }
1326
1327 static int wl3501_open(struct net_device *dev)
1328 {
1329 int rc = -ENODEV;
1330 struct wl3501_card *this = netdev_priv(dev);
1331 unsigned long flags;
1332 struct pcmcia_device *link;
1333 link = this->p_dev;
1334
1335 spin_lock_irqsave(&this->lock, flags);
1336 if (!pcmcia_dev_present(link))
1337 goto out;
1338 netif_device_attach(dev);
1339 link->open++;
1340
1341 /* Initial WL3501 firmware */
1342 pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1343 if (wl3501_init_firmware(this))
1344 goto fail;
1345 /* Initial device variables */
1346 this->adhoc_times = 0;
1347 /* Acknowledge Interrupt, for cleaning last state */
1348 wl3501_ack_interrupt(this);
1349
1350 /* Enable interrupt from card after all */
1351 wl3501_unblock_interrupt(this);
1352 wl3501_mgmt_scan(this, 100);
1353 rc = 0;
1354 pr_debug("%s: WL3501 opened", dev->name);
1355 printk(KERN_INFO "%s: Card Name: %s\n"
1356 "%s: Firmware Date: %s\n",
1357 dev->name, this->card_name,
1358 dev->name, this->firmware_date);
1359 out:
1360 spin_unlock_irqrestore(&this->lock, flags);
1361 return rc;
1362 fail:
1363 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1364 goto out;
1365 }
1366
1367 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1368 {
1369 struct wl3501_card *this = netdev_priv(dev);
1370 struct iw_statistics *wstats = &this->wstats;
1371 u32 value; /* size checked: it is u32 */
1372
1373 memset(wstats, 0, sizeof(*wstats));
1374 wstats->status = netif_running(dev);
1375 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1376 &value, sizeof(value)))
1377 wstats->discard.code += value;
1378 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1379 &value, sizeof(value)))
1380 wstats->discard.code += value;
1381 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1382 &value, sizeof(value)))
1383 wstats->discard.code += value;
1384 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1385 &value, sizeof(value)))
1386 wstats->discard.retries = value;
1387 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1388 &value, sizeof(value)))
1389 wstats->discard.misc += value;
1390 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1391 &value, sizeof(value)))
1392 wstats->discard.misc += value;
1393 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1394 &value, sizeof(value)))
1395 wstats->discard.misc += value;
1396 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1397 &value, sizeof(value)))
1398 wstats->discard.misc += value;
1399 return wstats;
1400 }
1401
1402 /**
1403 * wl3501_detach - deletes a driver "instance"
1404 * @link - FILL_IN
1405 *
1406 * This deletes a driver "instance". The device is de-registered with Card
1407 * Services. If it has been released, all local data structures are freed.
1408 * Otherwise, the structures will be freed when the device is released.
1409 */
1410 static void wl3501_detach(struct pcmcia_device *link)
1411 {
1412 struct net_device *dev = link->priv;
1413
1414 /* If the device is currently configured and active, we won't actually
1415 * delete it yet. Instead, it is marked so that when the release()
1416 * function is called, that will trigger a proper detach(). */
1417
1418 while (link->open > 0)
1419 wl3501_close(dev);
1420
1421 netif_device_detach(dev);
1422 wl3501_release(link);
1423
1424 unregister_netdev(dev);
1425
1426 if (link->priv)
1427 free_netdev(link->priv);
1428 }
1429
1430 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1431 union iwreq_data *wrqu, char *extra)
1432 {
1433 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1434 return 0;
1435 }
1436
1437 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1438 union iwreq_data *wrqu, char *extra)
1439 {
1440 struct wl3501_card *this = netdev_priv(dev);
1441 int channel = wrqu->freq.m;
1442 int rc = -EINVAL;
1443
1444 if (iw_valid_channel(this->reg_domain, channel)) {
1445 this->chan = channel;
1446 rc = wl3501_reset(dev);
1447 }
1448 return rc;
1449 }
1450
1451 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1452 union iwreq_data *wrqu, char *extra)
1453 {
1454 struct wl3501_card *this = netdev_priv(dev);
1455
1456 wrqu->freq.m = 100000 *
1457 ieee80211_channel_to_frequency(this->chan, IEEE80211_BAND_2GHZ);
1458 wrqu->freq.e = 1;
1459 return 0;
1460 }
1461
1462 static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1463 union iwreq_data *wrqu, char *extra)
1464 {
1465 int rc = -EINVAL;
1466
1467 if (wrqu->mode == IW_MODE_INFRA ||
1468 wrqu->mode == IW_MODE_ADHOC ||
1469 wrqu->mode == IW_MODE_AUTO) {
1470 struct wl3501_card *this = netdev_priv(dev);
1471
1472 this->net_type = wrqu->mode;
1473 rc = wl3501_reset(dev);
1474 }
1475 return rc;
1476 }
1477
1478 static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1479 union iwreq_data *wrqu, char *extra)
1480 {
1481 struct wl3501_card *this = netdev_priv(dev);
1482
1483 wrqu->mode = this->net_type;
1484 return 0;
1485 }
1486
1487 static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1488 union iwreq_data *wrqu, char *extra)
1489 {
1490 struct wl3501_card *this = netdev_priv(dev);
1491
1492 wrqu->sens.value = this->rssi;
1493 wrqu->sens.disabled = !wrqu->sens.value;
1494 wrqu->sens.fixed = 1;
1495 return 0;
1496 }
1497
1498 static int wl3501_get_range(struct net_device *dev,
1499 struct iw_request_info *info,
1500 union iwreq_data *wrqu, char *extra)
1501 {
1502 struct iw_range *range = (struct iw_range *)extra;
1503
1504 /* Set the length (very important for backward compatibility) */
1505 wrqu->data.length = sizeof(*range);
1506
1507 /* Set all the info we don't care or don't know about to zero */
1508 memset(range, 0, sizeof(*range));
1509
1510 /* Set the Wireless Extension versions */
1511 range->we_version_compiled = WIRELESS_EXT;
1512 range->we_version_source = 1;
1513 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1514 /* FIXME: study the code to fill in more fields... */
1515 return 0;
1516 }
1517
1518 static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1519 union iwreq_data *wrqu, char *extra)
1520 {
1521 struct wl3501_card *this = netdev_priv(dev);
1522 int rc = -EINVAL;
1523
1524 /* FIXME: we support other ARPHRDs...*/
1525 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1526 goto out;
1527 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data)) {
1528 /* FIXME: rescan? */
1529 } else
1530 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1531 /* FIXME: rescan? deassoc & scan? */
1532 rc = 0;
1533 out:
1534 return rc;
1535 }
1536
1537 static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1538 union iwreq_data *wrqu, char *extra)
1539 {
1540 struct wl3501_card *this = netdev_priv(dev);
1541
1542 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1543 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1544 return 0;
1545 }
1546
1547 static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1548 union iwreq_data *wrqu, char *extra)
1549 {
1550 /*
1551 * FIXME: trigger scanning with a reset, yes, I'm lazy
1552 */
1553 return wl3501_reset(dev);
1554 }
1555
1556 static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1557 union iwreq_data *wrqu, char *extra)
1558 {
1559 struct wl3501_card *this = netdev_priv(dev);
1560 int i;
1561 char *current_ev = extra;
1562 struct iw_event iwe;
1563
1564 for (i = 0; i < this->bss_cnt; ++i) {
1565 iwe.cmd = SIOCGIWAP;
1566 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1567 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
1568 current_ev = iwe_stream_add_event(info, current_ev,
1569 extra + IW_SCAN_MAX_DATA,
1570 &iwe, IW_EV_ADDR_LEN);
1571 iwe.cmd = SIOCGIWESSID;
1572 iwe.u.data.flags = 1;
1573 iwe.u.data.length = this->bss_set[i].ssid.el.len;
1574 current_ev = iwe_stream_add_point(info, current_ev,
1575 extra + IW_SCAN_MAX_DATA,
1576 &iwe,
1577 this->bss_set[i].ssid.essid);
1578 iwe.cmd = SIOCGIWMODE;
1579 iwe.u.mode = this->bss_set[i].bss_type;
1580 current_ev = iwe_stream_add_event(info, current_ev,
1581 extra + IW_SCAN_MAX_DATA,
1582 &iwe, IW_EV_UINT_LEN);
1583 iwe.cmd = SIOCGIWFREQ;
1584 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1585 iwe.u.freq.e = 0;
1586 current_ev = iwe_stream_add_event(info, current_ev,
1587 extra + IW_SCAN_MAX_DATA,
1588 &iwe, IW_EV_FREQ_LEN);
1589 iwe.cmd = SIOCGIWENCODE;
1590 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1591 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1592 else
1593 iwe.u.data.flags = IW_ENCODE_DISABLED;
1594 iwe.u.data.length = 0;
1595 current_ev = iwe_stream_add_point(info, current_ev,
1596 extra + IW_SCAN_MAX_DATA,
1597 &iwe, NULL);
1598 }
1599 /* Length of data */
1600 wrqu->data.length = (current_ev - extra);
1601 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1602 return 0;
1603 }
1604
1605 static int wl3501_set_essid(struct net_device *dev,
1606 struct iw_request_info *info,
1607 union iwreq_data *wrqu, char *extra)
1608 {
1609 struct wl3501_card *this = netdev_priv(dev);
1610
1611 if (wrqu->data.flags) {
1612 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1613 &this->essid.el,
1614 extra, wrqu->data.length);
1615 } else { /* We accept any ESSID */
1616 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1617 &this->essid.el, "ANY", 3);
1618 }
1619 return wl3501_reset(dev);
1620 }
1621
1622 static int wl3501_get_essid(struct net_device *dev,
1623 struct iw_request_info *info,
1624 union iwreq_data *wrqu, char *extra)
1625 {
1626 struct wl3501_card *this = netdev_priv(dev);
1627 unsigned long flags;
1628
1629 spin_lock_irqsave(&this->lock, flags);
1630 wrqu->essid.flags = 1;
1631 wrqu->essid.length = this->essid.el.len;
1632 memcpy(extra, this->essid.essid, this->essid.el.len);
1633 spin_unlock_irqrestore(&this->lock, flags);
1634 return 0;
1635 }
1636
1637 static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1638 union iwreq_data *wrqu, char *extra)
1639 {
1640 struct wl3501_card *this = netdev_priv(dev);
1641
1642 if (wrqu->data.length > sizeof(this->nick))
1643 return -E2BIG;
1644 strlcpy(this->nick, extra, wrqu->data.length);
1645 return 0;
1646 }
1647
1648 static int wl3501_get_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 strlcpy(extra, this->nick, 32);
1654 wrqu->data.length = strlen(extra);
1655 return 0;
1656 }
1657
1658 static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1659 union iwreq_data *wrqu, char *extra)
1660 {
1661 /*
1662 * FIXME: have to see from where to get this info, perhaps this card
1663 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1664 * common with the Planet Access Points. -acme
1665 */
1666 wrqu->bitrate.value = 2000000;
1667 wrqu->bitrate.fixed = 1;
1668 return 0;
1669 }
1670
1671 static int wl3501_get_rts_threshold(struct net_device *dev,
1672 struct iw_request_info *info,
1673 union iwreq_data *wrqu, char *extra)
1674 {
1675 u16 threshold; /* size checked: it is u16 */
1676 struct wl3501_card *this = netdev_priv(dev);
1677 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1678 &threshold, sizeof(threshold));
1679 if (!rc) {
1680 wrqu->rts.value = threshold;
1681 wrqu->rts.disabled = threshold >= 2347;
1682 wrqu->rts.fixed = 1;
1683 }
1684 return rc;
1685 }
1686
1687 static int wl3501_get_frag_threshold(struct net_device *dev,
1688 struct iw_request_info *info,
1689 union iwreq_data *wrqu, char *extra)
1690 {
1691 u16 threshold; /* size checked: it is u16 */
1692 struct wl3501_card *this = netdev_priv(dev);
1693 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1694 &threshold, sizeof(threshold));
1695 if (!rc) {
1696 wrqu->frag.value = threshold;
1697 wrqu->frag.disabled = threshold >= 2346;
1698 wrqu->frag.fixed = 1;
1699 }
1700 return rc;
1701 }
1702
1703 static int wl3501_get_txpow(struct net_device *dev,
1704 struct iw_request_info *info,
1705 union iwreq_data *wrqu, char *extra)
1706 {
1707 u16 txpow;
1708 struct wl3501_card *this = netdev_priv(dev);
1709 int rc = wl3501_get_mib_value(this,
1710 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1711 &txpow, sizeof(txpow));
1712 if (!rc) {
1713 wrqu->txpower.value = txpow;
1714 wrqu->txpower.disabled = 0;
1715 /*
1716 * From the MIB values I think this can be configurable,
1717 * as it lists several tx power levels -acme
1718 */
1719 wrqu->txpower.fixed = 0;
1720 wrqu->txpower.flags = IW_TXPOW_MWATT;
1721 }
1722 return rc;
1723 }
1724
1725 static int wl3501_get_retry(struct net_device *dev,
1726 struct iw_request_info *info,
1727 union iwreq_data *wrqu, char *extra)
1728 {
1729 u8 retry; /* size checked: it is u8 */
1730 struct wl3501_card *this = netdev_priv(dev);
1731 int rc = wl3501_get_mib_value(this,
1732 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1733 &retry, sizeof(retry));
1734 if (rc)
1735 goto out;
1736 if (wrqu->retry.flags & IW_RETRY_LONG) {
1737 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1738 goto set_value;
1739 }
1740 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1741 &retry, sizeof(retry));
1742 if (rc)
1743 goto out;
1744 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1745 set_value:
1746 wrqu->retry.value = retry;
1747 wrqu->retry.disabled = 0;
1748 out:
1749 return rc;
1750 }
1751
1752 static int wl3501_get_encode(struct net_device *dev,
1753 struct iw_request_info *info,
1754 union iwreq_data *wrqu, char *extra)
1755 {
1756 u8 implemented, restricted, keys[100], len_keys, tocopy;
1757 struct wl3501_card *this = netdev_priv(dev);
1758 int rc = wl3501_get_mib_value(this,
1759 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1760 &implemented, sizeof(implemented));
1761 if (rc)
1762 goto out;
1763 if (!implemented) {
1764 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1765 goto out;
1766 }
1767 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1768 &restricted, sizeof(restricted));
1769 if (rc)
1770 goto out;
1771 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1772 IW_ENCODE_OPEN;
1773 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1774 &len_keys, sizeof(len_keys));
1775 if (rc)
1776 goto out;
1777 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1778 keys, len_keys);
1779 if (rc)
1780 goto out;
1781 tocopy = min_t(u16, len_keys, wrqu->encoding.length);
1782 tocopy = min_t(u8, tocopy, 100);
1783 wrqu->encoding.length = tocopy;
1784 memcpy(extra, keys, tocopy);
1785 out:
1786 return rc;
1787 }
1788
1789 static int wl3501_get_power(struct net_device *dev,
1790 struct iw_request_info *info,
1791 union iwreq_data *wrqu, char *extra)
1792 {
1793 u8 pwr_state;
1794 struct wl3501_card *this = netdev_priv(dev);
1795 int rc = wl3501_get_mib_value(this,
1796 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1797 &pwr_state, sizeof(pwr_state));
1798 if (rc)
1799 goto out;
1800 wrqu->power.disabled = !pwr_state;
1801 wrqu->power.flags = IW_POWER_ON;
1802 out:
1803 return rc;
1804 }
1805
1806 static const iw_handler wl3501_handler[] = {
1807 IW_HANDLER(SIOCGIWNAME, wl3501_get_name),
1808 IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq),
1809 IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq),
1810 IW_HANDLER(SIOCSIWMODE, wl3501_set_mode),
1811 IW_HANDLER(SIOCGIWMODE, wl3501_get_mode),
1812 IW_HANDLER(SIOCGIWSENS, wl3501_get_sens),
1813 IW_HANDLER(SIOCGIWRANGE, wl3501_get_range),
1814 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1815 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1816 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1817 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1818 IW_HANDLER(SIOCSIWAP, wl3501_set_wap),
1819 IW_HANDLER(SIOCGIWAP, wl3501_get_wap),
1820 IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan),
1821 IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan),
1822 IW_HANDLER(SIOCSIWESSID, wl3501_set_essid),
1823 IW_HANDLER(SIOCGIWESSID, wl3501_get_essid),
1824 IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick),
1825 IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick),
1826 IW_HANDLER(SIOCGIWRATE, wl3501_get_rate),
1827 IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold),
1828 IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold),
1829 IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow),
1830 IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry),
1831 IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode),
1832 IW_HANDLER(SIOCGIWPOWER, wl3501_get_power),
1833 };
1834
1835 static const struct iw_handler_def wl3501_handler_def = {
1836 .num_standard = ARRAY_SIZE(wl3501_handler),
1837 .standard = (iw_handler *)wl3501_handler,
1838 .get_wireless_stats = wl3501_get_wireless_stats,
1839 };
1840
1841 static const struct net_device_ops wl3501_netdev_ops = {
1842 .ndo_open = wl3501_open,
1843 .ndo_stop = wl3501_close,
1844 .ndo_start_xmit = wl3501_hard_start_xmit,
1845 .ndo_tx_timeout = wl3501_tx_timeout,
1846 .ndo_change_mtu = eth_change_mtu,
1847 .ndo_set_mac_address = eth_mac_addr,
1848 .ndo_validate_addr = eth_validate_addr,
1849 };
1850
1851 static int wl3501_probe(struct pcmcia_device *p_dev)
1852 {
1853 struct net_device *dev;
1854 struct wl3501_card *this;
1855
1856 /* The io structure describes IO port mapping */
1857 p_dev->resource[0]->end = 16;
1858 p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8;
1859
1860 /* General socket configuration */
1861 p_dev->config_flags = CONF_ENABLE_IRQ;
1862 p_dev->config_index = 1;
1863
1864 dev = alloc_etherdev(sizeof(struct wl3501_card));
1865 if (!dev)
1866 goto out_link;
1867
1868
1869 dev->netdev_ops = &wl3501_netdev_ops;
1870 dev->watchdog_timeo = 5 * HZ;
1871
1872 this = netdev_priv(dev);
1873 this->wireless_data.spy_data = &this->spy_data;
1874 this->p_dev = p_dev;
1875 dev->wireless_data = &this->wireless_data;
1876 dev->wireless_handlers = &wl3501_handler_def;
1877 netif_stop_queue(dev);
1878 p_dev->priv = dev;
1879
1880 return wl3501_config(p_dev);
1881 out_link:
1882 return -ENOMEM;
1883 }
1884
1885 static int wl3501_config(struct pcmcia_device *link)
1886 {
1887 struct net_device *dev = link->priv;
1888 int i = 0, j, ret;
1889 struct wl3501_card *this;
1890
1891 /* Try allocating IO ports. This tries a few fixed addresses. If you
1892 * want, you can also read the card's config table to pick addresses --
1893 * see the serial driver for an example. */
1894 link->io_lines = 5;
1895
1896 for (j = 0x280; j < 0x400; j += 0x20) {
1897 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1898 * 0x200-0x2ff, and so on, because this seems safer */
1899 link->resource[0]->start = j;
1900 link->resource[1]->start = link->resource[0]->start + 0x10;
1901 i = pcmcia_request_io(link);
1902 if (i == 0)
1903 break;
1904 }
1905 if (i != 0)
1906 goto failed;
1907
1908 /* Now allocate an interrupt line. Note that this does not actually
1909 * assign a handler to the interrupt. */
1910
1911 ret = pcmcia_request_irq(link, wl3501_interrupt);
1912 if (ret)
1913 goto failed;
1914
1915 ret = pcmcia_enable_device(link);
1916 if (ret)
1917 goto failed;
1918
1919 dev->irq = link->irq;
1920 dev->base_addr = link->resource[0]->start;
1921 SET_NETDEV_DEV(dev, &link->dev);
1922 if (register_netdev(dev)) {
1923 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1924 goto failed;
1925 }
1926
1927 this = netdev_priv(dev);
1928
1929 this->base_addr = dev->base_addr;
1930
1931 if (!wl3501_get_flash_mac_addr(this)) {
1932 printk(KERN_WARNING "%s: Can't read MAC addr in flash ROM?\n",
1933 dev->name);
1934 unregister_netdev(dev);
1935 goto failed;
1936 }
1937
1938 for (i = 0; i < 6; i++)
1939 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
1940
1941 /* print probe information */
1942 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
1943 "MAC addr in flash ROM:%pM\n",
1944 dev->name, this->base_addr, (int)dev->irq,
1945 dev->dev_addr);
1946 /*
1947 * Initialize card parameters - added by jss
1948 */
1949 this->net_type = IW_MODE_INFRA;
1950 this->bss_cnt = 0;
1951 this->join_sta_bss = 0;
1952 this->adhoc_times = 0;
1953 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
1954 "ANY", 3);
1955 this->card_name[0] = '\0';
1956 this->firmware_date[0] = '\0';
1957 this->rssi = 255;
1958 this->chan = iw_default_channel(this->reg_domain);
1959 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
1960 spin_lock_init(&this->lock);
1961 init_waitqueue_head(&this->wait);
1962 netif_start_queue(dev);
1963 return 0;
1964
1965 failed:
1966 wl3501_release(link);
1967 return -ENODEV;
1968 }
1969
1970 static void wl3501_release(struct pcmcia_device *link)
1971 {
1972 pcmcia_disable_device(link);
1973 }
1974
1975 static int wl3501_suspend(struct pcmcia_device *link)
1976 {
1977 struct net_device *dev = link->priv;
1978
1979 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
1980 if (link->open)
1981 netif_device_detach(dev);
1982
1983 return 0;
1984 }
1985
1986 static int wl3501_resume(struct pcmcia_device *link)
1987 {
1988 struct net_device *dev = link->priv;
1989
1990 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
1991 if (link->open) {
1992 wl3501_reset(dev);
1993 netif_device_attach(dev);
1994 }
1995
1996 return 0;
1997 }
1998
1999
2000 static const struct pcmcia_device_id wl3501_ids[] = {
2001 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2002 PCMCIA_DEVICE_NULL
2003 };
2004 MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2005
2006 static struct pcmcia_driver wl3501_driver = {
2007 .owner = THIS_MODULE,
2008 .name = "wl3501_cs",
2009 .probe = wl3501_probe,
2010 .remove = wl3501_detach,
2011 .id_table = wl3501_ids,
2012 .suspend = wl3501_suspend,
2013 .resume = wl3501_resume,
2014 };
2015 module_pcmcia_driver(wl3501_driver);
2016
2017 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2018 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2019 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2020 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2021 MODULE_LICENSE("GPL");
Linux with added FPC-III support