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Staging: unisys: Remove RETINT macro
[linux/fpc-iii.git] / drivers / net / wireless / wl3501_cs.c
blobd24d4a958c6731a44fe10d9c83ee32567c3fe7ed
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 <linux/ieee80211.h>
46 #include <linux/etherdevice.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 <asm/uaccess.h>
56
57 #include "wl3501.h"
58
59 #ifndef __i386__
60 #define slow_down_io()
61 #endif
62
63 /* For rough constant delay */
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
78 static int wl3501_config(struct pcmcia_device *link);
79 static void wl3501_release(struct pcmcia_device *link);
80
81 static 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 * iw_valid_channel - validate channel in regulatory domain
137 * @reg_comain - regulatory domain
138 * @channel - channel to validate
139 *
140 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
141 */
142 static 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 * iw_default_channel - get default channel for a regulatory domain
157 * @reg_comain - regulatory domain
158 *
159 * Returns the default channel for a regulatory domain
160 */
161 static 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
173 static 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
182 static 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
188 static 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 * Get Ethernet MAC address.
195 *
196 * WARNING: We switch to FPAGE0 and switc back again.
197 * Making sure there is no other WL function beening called by ISR.
198 */
199 static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
200 {
201 int base_addr = this->base_addr;
202
203 /* get MAC addr */
204 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
205 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
206 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
207
208 /* wait for reading EEPROM */
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 /* switch to SRAM Page 0 (for safety) */
232 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
233
234 /* The MAC addr should be 00:60:... */
235 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
236 }
237
238 /**
239 * wl3501_set_to_wla - Move 'size' bytes from PC to card
240 * @dest: Card addressing space
241 * @src: PC addressing space
242 * @size: Bytes to move
243 *
244 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
245 */
246 static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
247 int size)
248 {
249 /* switch to SRAM Page 0 */
250 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
251 WL3501_BSS_SPAGE0);
252 /* set LMAL and LMAH */
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 /* rep out to Port A */
257 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
258 }
259
260 /**
261 * wl3501_get_from_wla - Move 'size' bytes from card to PC
262 * @src: Card addressing space
263 * @dest: PC addressing space
264 * @size: Bytes to move
265 *
266 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
267 */
268 static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
269 int size)
270 {
271 /* switch to SRAM Page 0 */
272 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
273 WL3501_BSS_SPAGE0);
274 /* set LMAL and LMAH */
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 /* rep get from Port A */
279 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
280 }
281
282 /*
283 * Get/Allocate a free Tx Data Buffer
284 *
285 * *--------------*-----------------*----------------------------------*
286 * | PLCP | MAC Header | DST SRC Data ... |
287 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
288 * *--------------*-----------------*----------------------------------*
289 * \ \- IEEE 802.11 -/ \-------------- len --------------/
290 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
291 *
292 * Return = Position in Card
293 */
294 static 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 /* if buffer is not enough */
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;
323 out:
324 return ret;
325 }
326
327 /*
328 * Free an allocated Tx Buffer. ptr must be correct position.
329 */
330 static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
331 {
332 /* check if all space is not free */
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
348 static 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
356 static 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
367 static 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
382 static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
383 void *bf, int size)
384 {
385 struct wl3501_get_req sig = {
386 .sig_id = WL3501_SIG_GET_REQ,
387 .mib_attrib = index,
388 };
389 unsigned long flags;
390 int rc = -EIO;
391
392 spin_lock_irqsave(&this->lock, flags);
393 if (wl3501_esbq_req_test(this)) {
394 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
395 if (ptr) {
396 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
397 wl3501_esbq_req(this, &ptr);
398 this->sig_get_confirm.mib_status = 255;
399 spin_unlock_irqrestore(&this->lock, flags);
400 rc = wait_event_interruptible(this->wait,
401 this->sig_get_confirm.mib_status != 255);
402 if (!rc)
403 memcpy(bf, this->sig_get_confirm.mib_value,
404 size);
405 goto out;
406 }
407 }
408 spin_unlock_irqrestore(&this->lock, flags);
409 out:
410 return rc;
411 }
412
413 static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
414 {
415 struct wl3501_pwr_mgmt_req sig = {
416 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
417 .pwr_save = suspend,
418 .wake_up = !suspend,
419 .receive_dtims = 10,
420 };
421 unsigned long flags;
422 int rc = -EIO;
423
424 spin_lock_irqsave(&this->lock, flags);
425 if (wl3501_esbq_req_test(this)) {
426 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
427 if (ptr) {
428 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
429 wl3501_esbq_req(this, &ptr);
430 this->sig_pwr_mgmt_confirm.status = 255;
431 spin_unlock_irqrestore(&this->lock, flags);
432 rc = wait_event_interruptible(this->wait,
433 this->sig_pwr_mgmt_confirm.status != 255);
434 printk(KERN_INFO "%s: %s status=%d\n", __func__,
435 suspend ? "suspend" : "resume",
436 this->sig_pwr_mgmt_confirm.status);
437 goto out;
438 }
439 }
440 spin_unlock_irqrestore(&this->lock, flags);
441 out:
442 return rc;
443 }
444
445 /**
446 * wl3501_send_pkt - Send a packet.
447 * @this - card
448 *
449 * Send a packet.
450 *
451 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
452 * data[6] - data[11] is Src MAC Addr)
453 * Ref: IEEE 802.11
454 */
455 static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
456 {
457 u16 bf, sig_bf, next, tmplen, pktlen;
458 struct wl3501_md_req sig = {
459 .sig_id = WL3501_SIG_MD_REQ,
460 };
461 u8 *pdata = (char *)data;
462 int rc = -EIO;
463
464 if (wl3501_esbq_req_test(this)) {
465 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
466 rc = -ENOMEM;
467 if (!sig_bf) /* No free buffer available */
468 goto out;
469 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
470 if (!bf) {
471 /* No free buffer available */
472 wl3501_free_tx_buffer(this, sig_bf);
473 goto out;
474 }
475 rc = 0;
476 memcpy(&sig.daddr[0], pdata, 12);
477 pktlen = len - 12;
478 pdata += 12;
479 sig.data = bf;
480 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
481 u8 addr4[ETH_ALEN] = {
482 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
483 };
484
485 wl3501_set_to_wla(this, bf + 2 +
486 offsetof(struct wl3501_tx_hdr, addr4),
487 addr4, sizeof(addr4));
488 sig.size = pktlen + 24 + 4 + 6;
489 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
490 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
491 pktlen -= tmplen;
492 } else {
493 tmplen = pktlen;
494 pktlen = 0;
495 }
496 wl3501_set_to_wla(this,
497 bf + 2 + sizeof(struct wl3501_tx_hdr),
498 pdata, tmplen);
499 pdata += tmplen;
500 wl3501_get_from_wla(this, bf, &next, sizeof(next));
501 bf = next;
502 } else {
503 sig.size = pktlen + 24 + 4 - 2;
504 pdata += 2;
505 pktlen -= 2;
506 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
507 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
508 pktlen -= tmplen;
509 } else {
510 tmplen = pktlen;
511 pktlen = 0;
512 }
513 wl3501_set_to_wla(this, bf + 2 +
514 offsetof(struct wl3501_tx_hdr, addr4),
515 pdata, tmplen);
516 pdata += tmplen;
517 wl3501_get_from_wla(this, bf, &next, sizeof(next));
518 bf = next;
519 }
520 while (pktlen > 0) {
521 if (pktlen > 254) {
522 tmplen = 254;
523 pktlen -= 254;
524 } else {
525 tmplen = pktlen;
526 pktlen = 0;
527 }
528 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
529 pdata += tmplen;
530 wl3501_get_from_wla(this, bf, &next, sizeof(next));
531 bf = next;
532 }
533 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
534 wl3501_esbq_req(this, &sig_bf);
535 }
536 out:
537 return rc;
538 }
539
540 static int wl3501_mgmt_resync(struct wl3501_card *this)
541 {
542 struct wl3501_resync_req sig = {
543 .sig_id = WL3501_SIG_RESYNC_REQ,
544 };
545
546 return wl3501_esbq_exec(this, &sig, sizeof(sig));
547 }
548
549 static inline int wl3501_fw_bss_type(struct wl3501_card *this)
550 {
551 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
552 WL3501_NET_TYPE_ADHOC;
553 }
554
555 static inline int wl3501_fw_cap_info(struct wl3501_card *this)
556 {
557 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
558 WL3501_MGMT_CAPABILITY_IBSS;
559 }
560
561 static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
562 {
563 struct wl3501_scan_req sig = {
564 .sig_id = WL3501_SIG_SCAN_REQ,
565 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
566 .probe_delay = 0x10,
567 .min_chan_time = chan_time,
568 .max_chan_time = chan_time,
569 .bss_type = wl3501_fw_bss_type(this),
570 };
571
572 this->bss_cnt = this->join_sta_bss = 0;
573 return wl3501_esbq_exec(this, &sig, sizeof(sig));
574 }
575
576 static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
577 {
578 struct wl3501_join_req sig = {
579 .sig_id = WL3501_SIG_JOIN_REQ,
580 .timeout = 10,
581 .ds_pset = {
582 .el = {
583 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
584 .len = 1,
585 },
586 .chan = this->chan,
587 },
588 };
589
590 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
591 return wl3501_esbq_exec(this, &sig, sizeof(sig));
592 }
593
594 static int wl3501_mgmt_start(struct wl3501_card *this)
595 {
596 struct wl3501_start_req sig = {
597 .sig_id = WL3501_SIG_START_REQ,
598 .beacon_period = 400,
599 .dtim_period = 1,
600 .ds_pset = {
601 .el = {
602 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
603 .len = 1,
604 },
605 .chan = this->chan,
606 },
607 .bss_basic_rset = {
608 .el = {
609 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
610 .len = 2,
611 },
612 .data_rate_labels = {
613 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
614 IW_MGMT_RATE_LABEL_1MBIT,
615 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
616 IW_MGMT_RATE_LABEL_2MBIT,
617 },
618 },
619 .operational_rset = {
620 .el = {
621 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
622 .len = 2,
623 },
624 .data_rate_labels = {
625 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
626 IW_MGMT_RATE_LABEL_1MBIT,
627 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
628 IW_MGMT_RATE_LABEL_2MBIT,
629 },
630 },
631 .ibss_pset = {
632 .el = {
633 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
634 .len = 2,
635 },
636 .atim_window = 10,
637 },
638 .bss_type = wl3501_fw_bss_type(this),
639 .cap_info = wl3501_fw_cap_info(this),
640 };
641
642 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
643 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
644 return wl3501_esbq_exec(this, &sig, sizeof(sig));
645 }
646
647 static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
648 {
649 u16 i = 0;
650 int matchflag = 0;
651 struct wl3501_scan_confirm sig;
652
653 pr_debug("entry");
654 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
655 if (sig.status == WL3501_STATUS_SUCCESS) {
656 pr_debug("success");
657 if ((this->net_type == IW_MODE_INFRA &&
658 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
659 (this->net_type == IW_MODE_ADHOC &&
660 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
661 this->net_type == IW_MODE_AUTO) {
662 if (!this->essid.el.len)
663 matchflag = 1;
664 else if (this->essid.el.len == 3 &&
665 !memcmp(this->essid.essid, "ANY", 3))
666 matchflag = 1;
667 else if (this->essid.el.len != sig.ssid.el.len)
668 matchflag = 0;
669 else if (memcmp(this->essid.essid, sig.ssid.essid,
670 this->essid.el.len))
671 matchflag = 0;
672 else
673 matchflag = 1;
674 if (matchflag) {
675 for (i = 0; i < this->bss_cnt; i++) {
676 if (ether_addr_equal_unaligned(this->bss_set[i].bssid, sig.bssid)) {
677 matchflag = 0;
678 break;
679 }
680 }
681 }
682 if (matchflag && (i < 20)) {
683 memcpy(&this->bss_set[i].beacon_period,
684 &sig.beacon_period, 73);
685 this->bss_cnt++;
686 this->rssi = sig.rssi;
687 }
688 }
689 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
690 pr_debug("timeout");
691 this->join_sta_bss = 0;
692 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
693 if (!wl3501_mgmt_join(this, i))
694 break;
695 this->join_sta_bss = i;
696 if (this->join_sta_bss == this->bss_cnt) {
697 if (this->net_type == IW_MODE_INFRA)
698 wl3501_mgmt_scan(this, 100);
699 else {
700 this->adhoc_times++;
701 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
702 wl3501_mgmt_start(this);
703 else
704 wl3501_mgmt_scan(this, 100);
705 }
706 }
707 }
708 }
709
710 /**
711 * wl3501_block_interrupt - Mask interrupt from SUTRO
712 * @this - card
713 *
714 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
715 * Return: 1 if interrupt is originally enabled
716 */
717 static int wl3501_block_interrupt(struct wl3501_card *this)
718 {
719 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
720 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
721 WL3501_GCR_ENECINT));
722
723 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
724 return old & WL3501_GCR_ENECINT;
725 }
726
727 /**
728 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
729 * @this - card
730 *
731 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
732 * Return: 1 if interrupt is originally enabled
733 */
734 static int wl3501_unblock_interrupt(struct wl3501_card *this)
735 {
736 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
737 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
738 WL3501_GCR_ENECINT;
739
740 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
741 return old & WL3501_GCR_ENECINT;
742 }
743
744 /**
745 * wl3501_receive - Receive data from Receive Queue.
746 *
747 * Receive data from Receive Queue.
748 *
749 * @this: card
750 * @bf: address of host
751 * @size: size of buffer.
752 */
753 static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
754 {
755 u16 next_addr, next_addr1;
756 u8 *data = bf + 12;
757
758 size -= 12;
759 wl3501_get_from_wla(this, this->start_seg + 2,
760 &next_addr, sizeof(next_addr));
761 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
762 wl3501_get_from_wla(this,
763 this->start_seg +
764 sizeof(struct wl3501_rx_hdr), data,
765 WL3501_BLKSZ -
766 sizeof(struct wl3501_rx_hdr));
767 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
768 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
769 } else {
770 wl3501_get_from_wla(this,
771 this->start_seg +
772 sizeof(struct wl3501_rx_hdr),
773 data, size);
774 size = 0;
775 }
776 while (size > 0) {
777 if (size > WL3501_BLKSZ - 5) {
778 wl3501_get_from_wla(this, next_addr + 5, data,
779 WL3501_BLKSZ - 5);
780 size -= WL3501_BLKSZ - 5;
781 data += WL3501_BLKSZ - 5;
782 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
783 sizeof(next_addr1));
784 next_addr = next_addr1;
785 } else {
786 wl3501_get_from_wla(this, next_addr + 5, data, size);
787 size = 0;
788 }
789 }
790 return 0;
791 }
792
793 static void wl3501_esbq_req_free(struct wl3501_card *this)
794 {
795 u8 tmp;
796 u16 addr;
797
798 if (this->esbq_req_head == this->esbq_req_tail)
799 goto out;
800 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
801 if (!(tmp & 0x80))
802 goto out;
803 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
804 wl3501_free_tx_buffer(this, addr);
805 this->esbq_req_tail += 4;
806 if (this->esbq_req_tail >= this->esbq_req_end)
807 this->esbq_req_tail = this->esbq_req_start;
808 out:
809 return;
810 }
811
812 static int wl3501_esbq_confirm(struct wl3501_card *this)
813 {
814 u8 tmp;
815
816 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
817 return tmp & 0x80;
818 }
819
820 static void wl3501_online(struct net_device *dev)
821 {
822 struct wl3501_card *this = netdev_priv(dev);
823
824 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
825 dev->name, this->bssid);
826 netif_wake_queue(dev);
827 }
828
829 static void wl3501_esbq_confirm_done(struct wl3501_card *this)
830 {
831 u8 tmp = 0;
832
833 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
834 this->esbq_confirm += 4;
835 if (this->esbq_confirm >= this->esbq_confirm_end)
836 this->esbq_confirm = this->esbq_confirm_start;
837 }
838
839 static int wl3501_mgmt_auth(struct wl3501_card *this)
840 {
841 struct wl3501_auth_req sig = {
842 .sig_id = WL3501_SIG_AUTH_REQ,
843 .type = WL3501_SYS_TYPE_OPEN,
844 .timeout = 1000,
845 };
846
847 pr_debug("entry");
848 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
849 return wl3501_esbq_exec(this, &sig, sizeof(sig));
850 }
851
852 static int wl3501_mgmt_association(struct wl3501_card *this)
853 {
854 struct wl3501_assoc_req sig = {
855 .sig_id = WL3501_SIG_ASSOC_REQ,
856 .timeout = 1000,
857 .listen_interval = 5,
858 .cap_info = this->cap_info,
859 };
860
861 pr_debug("entry");
862 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
863 return wl3501_esbq_exec(this, &sig, sizeof(sig));
864 }
865
866 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
867 {
868 struct wl3501_card *this = netdev_priv(dev);
869 struct wl3501_join_confirm sig;
870
871 pr_debug("entry");
872 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
873 if (sig.status == WL3501_STATUS_SUCCESS) {
874 if (this->net_type == IW_MODE_INFRA) {
875 if (this->join_sta_bss < this->bss_cnt) {
876 const int i = this->join_sta_bss;
877 memcpy(this->bssid,
878 this->bss_set[i].bssid, ETH_ALEN);
879 this->chan = this->bss_set[i].ds_pset.chan;
880 iw_copy_mgmt_info_element(&this->keep_essid.el,
881 &this->bss_set[i].ssid.el);
882 wl3501_mgmt_auth(this);
883 }
884 } else {
885 const int i = this->join_sta_bss;
886
887 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
888 this->chan = this->bss_set[i].ds_pset.chan;
889 iw_copy_mgmt_info_element(&this->keep_essid.el,
890 &this->bss_set[i].ssid.el);
891 wl3501_online(dev);
892 }
893 } else {
894 int i;
895 this->join_sta_bss++;
896 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
897 if (!wl3501_mgmt_join(this, i))
898 break;
899 this->join_sta_bss = i;
900 if (this->join_sta_bss == this->bss_cnt) {
901 if (this->net_type == IW_MODE_INFRA)
902 wl3501_mgmt_scan(this, 100);
903 else {
904 this->adhoc_times++;
905 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
906 wl3501_mgmt_start(this);
907 else
908 wl3501_mgmt_scan(this, 100);
909 }
910 }
911 }
912 }
913
914 static inline void wl3501_alarm_interrupt(struct net_device *dev,
915 struct wl3501_card *this)
916 {
917 if (this->net_type == IW_MODE_INFRA) {
918 printk(KERN_INFO "Wireless LAN offline\n");
919 netif_stop_queue(dev);
920 wl3501_mgmt_resync(this);
921 }
922 }
923
924 static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
925 struct wl3501_card *this,
926 u16 addr)
927 {
928 struct wl3501_md_confirm sig;
929
930 pr_debug("entry");
931 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
932 wl3501_free_tx_buffer(this, sig.data);
933 if (netif_queue_stopped(dev))
934 netif_wake_queue(dev);
935 }
936
937 static inline void wl3501_md_ind_interrupt(struct net_device *dev,
938 struct wl3501_card *this, u16 addr)
939 {
940 struct wl3501_md_ind sig;
941 struct sk_buff *skb;
942 u8 rssi, addr4[ETH_ALEN];
943 u16 pkt_len;
944
945 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
946 this->start_seg = sig.data;
947 wl3501_get_from_wla(this,
948 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
949 &rssi, sizeof(rssi));
950 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
951
952 wl3501_get_from_wla(this,
953 sig.data +
954 offsetof(struct wl3501_rx_hdr, addr4),
955 &addr4, sizeof(addr4));
956 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
957 addr4[2] == 0x03 && addr4[4] == 0x00)) {
958 printk(KERN_INFO "Insupported packet type!\n");
959 return;
960 }
961 pkt_len = sig.size + 12 - 24 - 4 - 6;
962
963 skb = dev_alloc_skb(pkt_len + 5);
964
965 if (!skb) {
966 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
967 dev->name, pkt_len);
968 dev->stats.rx_dropped++;
969 } else {
970 skb->dev = dev;
971 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
972 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
973 wl3501_receive(this, skb->data, pkt_len);
974 skb_put(skb, pkt_len);
975 skb->protocol = eth_type_trans(skb, dev);
976 dev->stats.rx_packets++;
977 dev->stats.rx_bytes += skb->len;
978 netif_rx(skb);
979 }
980 }
981
982 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
983 u16 addr, void *sig, int size)
984 {
985 pr_debug("entry");
986 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
987 sizeof(this->sig_get_confirm));
988 wake_up(&this->wait);
989 }
990
991 static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
992 struct wl3501_card *this,
993 u16 addr)
994 {
995 struct wl3501_start_confirm sig;
996
997 pr_debug("entry");
998 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
999 if (sig.status == WL3501_STATUS_SUCCESS)
1000 netif_wake_queue(dev);
1001 }
1002
1003 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1004 u16 addr)
1005 {
1006 struct wl3501_card *this = netdev_priv(dev);
1007 struct wl3501_assoc_confirm sig;
1008
1009 pr_debug("entry");
1010 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1011
1012 if (sig.status == WL3501_STATUS_SUCCESS)
1013 wl3501_online(dev);
1014 }
1015
1016 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1017 u16 addr)
1018 {
1019 struct wl3501_auth_confirm sig;
1020
1021 pr_debug("entry");
1022 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1023
1024 if (sig.status == WL3501_STATUS_SUCCESS)
1025 wl3501_mgmt_association(this);
1026 else
1027 wl3501_mgmt_resync(this);
1028 }
1029
1030 static inline void wl3501_rx_interrupt(struct net_device *dev)
1031 {
1032 int morepkts;
1033 u16 addr;
1034 u8 sig_id;
1035 struct wl3501_card *this = netdev_priv(dev);
1036
1037 pr_debug("entry");
1038 loop:
1039 morepkts = 0;
1040 if (!wl3501_esbq_confirm(this))
1041 goto free;
1042 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1043 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1044
1045 switch (sig_id) {
1046 case WL3501_SIG_DEAUTH_IND:
1047 case WL3501_SIG_DISASSOC_IND:
1048 case WL3501_SIG_ALARM:
1049 wl3501_alarm_interrupt(dev, this);
1050 break;
1051 case WL3501_SIG_MD_CONFIRM:
1052 wl3501_md_confirm_interrupt(dev, this, addr);
1053 break;
1054 case WL3501_SIG_MD_IND:
1055 wl3501_md_ind_interrupt(dev, this, addr);
1056 break;
1057 case WL3501_SIG_GET_CONFIRM:
1058 wl3501_get_confirm_interrupt(this, addr,
1059 &this->sig_get_confirm,
1060 sizeof(this->sig_get_confirm));
1061 break;
1062 case WL3501_SIG_PWR_MGMT_CONFIRM:
1063 wl3501_get_confirm_interrupt(this, addr,
1064 &this->sig_pwr_mgmt_confirm,
1065 sizeof(this->sig_pwr_mgmt_confirm));
1066 break;
1067 case WL3501_SIG_START_CONFIRM:
1068 wl3501_start_confirm_interrupt(dev, this, addr);
1069 break;
1070 case WL3501_SIG_SCAN_CONFIRM:
1071 wl3501_mgmt_scan_confirm(this, addr);
1072 break;
1073 case WL3501_SIG_JOIN_CONFIRM:
1074 wl3501_mgmt_join_confirm(dev, addr);
1075 break;
1076 case WL3501_SIG_ASSOC_CONFIRM:
1077 wl3501_assoc_confirm_interrupt(dev, addr);
1078 break;
1079 case WL3501_SIG_AUTH_CONFIRM:
1080 wl3501_auth_confirm_interrupt(this, addr);
1081 break;
1082 case WL3501_SIG_RESYNC_CONFIRM:
1083 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1084 break;
1085 }
1086 wl3501_esbq_confirm_done(this);
1087 morepkts = 1;
1088 /* free request if necessary */
1089 free:
1090 wl3501_esbq_req_free(this);
1091 if (morepkts)
1092 goto loop;
1093 }
1094
1095 static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1096 {
1097 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1098 }
1099
1100 /**
1101 * wl3501_interrupt - Hardware interrupt from card.
1102 * @irq - Interrupt number
1103 * @dev_id - net_device
1104 *
1105 * We must acknowledge the interrupt as soon as possible, and block the
1106 * interrupt from the same card immediately to prevent re-entry.
1107 *
1108 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1109 * On the other hand, to prevent SUTRO from malfunctioning, we must
1110 * unlock the SUTRO as soon as possible.
1111 */
1112 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1113 {
1114 struct net_device *dev = dev_id;
1115 struct wl3501_card *this;
1116
1117 this = netdev_priv(dev);
1118 spin_lock(&this->lock);
1119 wl3501_ack_interrupt(this);
1120 wl3501_block_interrupt(this);
1121 wl3501_rx_interrupt(dev);
1122 wl3501_unblock_interrupt(this);
1123 spin_unlock(&this->lock);
1124
1125 return IRQ_HANDLED;
1126 }
1127
1128 static int wl3501_reset_board(struct wl3501_card *this)
1129 {
1130 u8 tmp = 0;
1131 int i, rc = 0;
1132
1133 /* Coreset */
1134 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1135 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1136 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1137
1138 /* Reset SRAM 0x480 to zero */
1139 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1140
1141 /* Start up */
1142 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1143
1144 WL3501_NOPLOOP(1024 * 50);
1145
1146 wl3501_unblock_interrupt(this); /* acme: was commented */
1147
1148 /* Polling Self_Test_Status */
1149 for (i = 0; i < 10000; i++) {
1150 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1151
1152 if (tmp == 'W') {
1153 /* firmware complete all test successfully */
1154 tmp = 'A';
1155 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1156 goto out;
1157 }
1158 WL3501_NOPLOOP(10);
1159 }
1160 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1161 rc = -ENODEV;
1162 out:
1163 return rc;
1164 }
1165
1166 static int wl3501_init_firmware(struct wl3501_card *this)
1167 {
1168 u16 ptr, next;
1169 int rc = wl3501_reset_board(this);
1170
1171 if (rc)
1172 goto fail;
1173 this->card_name[0] = '\0';
1174 wl3501_get_from_wla(this, 0x1a00,
1175 this->card_name, sizeof(this->card_name));
1176 this->card_name[sizeof(this->card_name) - 1] = '\0';
1177 this->firmware_date[0] = '\0';
1178 wl3501_get_from_wla(this, 0x1a40,
1179 this->firmware_date, sizeof(this->firmware_date));
1180 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1181 /* Switch to SRAM Page 0 */
1182 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1183 /* Read parameter from card */
1184 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1185 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1186 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1187 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1188 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1189 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1190 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1191 this->esbq_req_end += this->esbq_req_start;
1192 this->esbq_confirm = this->esbq_confirm_start;
1193 this->esbq_confirm_end += this->esbq_confirm_start;
1194 /* Initial Tx Buffer */
1195 this->tx_buffer_cnt = 1;
1196 ptr = this->tx_buffer_head;
1197 next = ptr + WL3501_BLKSZ;
1198 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1199 this->tx_buffer_cnt++;
1200 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1201 ptr = next;
1202 next = ptr + WL3501_BLKSZ;
1203 }
1204 rc = 0;
1205 next = 0;
1206 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1207 this->tx_buffer_tail = ptr;
1208 out:
1209 return rc;
1210 fail:
1211 printk(KERN_WARNING "%s: failed!\n", __func__);
1212 goto out;
1213 }
1214
1215 static int wl3501_close(struct net_device *dev)
1216 {
1217 struct wl3501_card *this = netdev_priv(dev);
1218 int rc = -ENODEV;
1219 unsigned long flags;
1220 struct pcmcia_device *link;
1221 link = this->p_dev;
1222
1223 spin_lock_irqsave(&this->lock, flags);
1224 link->open--;
1225
1226 /* Stop wl3501_hard_start_xmit() from now on */
1227 netif_stop_queue(dev);
1228 wl3501_ack_interrupt(this);
1229
1230 /* Mask interrupts from the SUTRO */
1231 wl3501_block_interrupt(this);
1232
1233 rc = 0;
1234 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1235 spin_unlock_irqrestore(&this->lock, flags);
1236 return rc;
1237 }
1238
1239 /**
1240 * wl3501_reset - Reset the SUTRO.
1241 * @dev - network device
1242 *
1243 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1244 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1245 * is running. It seems to be dangerous.
1246 */
1247 static int wl3501_reset(struct net_device *dev)
1248 {
1249 struct wl3501_card *this = netdev_priv(dev);
1250 int rc = -ENODEV;
1251
1252 wl3501_block_interrupt(this);
1253
1254 if (wl3501_init_firmware(this)) {
1255 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1256 dev->name);
1257 /* Free IRQ, and mark IRQ as unused */
1258 free_irq(dev->irq, dev);
1259 goto out;
1260 }
1261
1262 /*
1263 * Queue has to be started only when the Card is Started
1264 */
1265 netif_stop_queue(dev);
1266 this->adhoc_times = 0;
1267 wl3501_ack_interrupt(this);
1268 wl3501_unblock_interrupt(this);
1269 wl3501_mgmt_scan(this, 100);
1270 pr_debug("%s: device reset", dev->name);
1271 rc = 0;
1272 out:
1273 return rc;
1274 }
1275
1276 static void wl3501_tx_timeout(struct net_device *dev)
1277 {
1278 struct wl3501_card *this = netdev_priv(dev);
1279 struct net_device_stats *stats = &dev->stats;
1280 unsigned long flags;
1281 int rc;
1282
1283 stats->tx_errors++;
1284 spin_lock_irqsave(&this->lock, flags);
1285 rc = wl3501_reset(dev);
1286 spin_unlock_irqrestore(&this->lock, flags);
1287 if (rc)
1288 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1289 dev->name, rc);
1290 else {
1291 dev->trans_start = jiffies; /* prevent tx timeout */
1292 netif_wake_queue(dev);
1293 }
1294 }
1295
1296 /*
1297 * Return : 0 - OK
1298 * 1 - Could not transmit (dev_queue_xmit will queue it)
1299 * and try to sent it later
1300 */
1301 static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1302 struct net_device *dev)
1303 {
1304 int enabled, rc;
1305 struct wl3501_card *this = netdev_priv(dev);
1306 unsigned long flags;
1307
1308 spin_lock_irqsave(&this->lock, flags);
1309 enabled = wl3501_block_interrupt(this);
1310 rc = wl3501_send_pkt(this, skb->data, skb->len);
1311 if (enabled)
1312 wl3501_unblock_interrupt(this);
1313 if (rc) {
1314 ++dev->stats.tx_dropped;
1315 netif_stop_queue(dev);
1316 } else {
1317 ++dev->stats.tx_packets;
1318 dev->stats.tx_bytes += skb->len;
1319 kfree_skb(skb);
1320
1321 if (this->tx_buffer_cnt < 2)
1322 netif_stop_queue(dev);
1323 }
1324 spin_unlock_irqrestore(&this->lock, flags);
1325 return NETDEV_TX_OK;
1326 }
1327
1328 static int wl3501_open(struct net_device *dev)
1329 {
1330 int rc = -ENODEV;
1331 struct wl3501_card *this = netdev_priv(dev);
1332 unsigned long flags;
1333 struct pcmcia_device *link;
1334 link = this->p_dev;
1335
1336 spin_lock_irqsave(&this->lock, flags);
1337 if (!pcmcia_dev_present(link))
1338 goto out;
1339 netif_device_attach(dev);
1340 link->open++;
1341
1342 /* Initial WL3501 firmware */
1343 pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1344 if (wl3501_init_firmware(this))
1345 goto fail;
1346 /* Initial device variables */
1347 this->adhoc_times = 0;
1348 /* Acknowledge Interrupt, for cleaning last state */
1349 wl3501_ack_interrupt(this);
1350
1351 /* Enable interrupt from card after all */
1352 wl3501_unblock_interrupt(this);
1353 wl3501_mgmt_scan(this, 100);
1354 rc = 0;
1355 pr_debug("%s: WL3501 opened", dev->name);
1356 printk(KERN_INFO "%s: Card Name: %s\n"
1357 "%s: Firmware Date: %s\n",
1358 dev->name, this->card_name,
1359 dev->name, this->firmware_date);
1360 out:
1361 spin_unlock_irqrestore(&this->lock, flags);
1362 return rc;
1363 fail:
1364 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1365 goto out;
1366 }
1367
1368 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1369 {
1370 struct wl3501_card *this = netdev_priv(dev);
1371 struct iw_statistics *wstats = &this->wstats;
1372 u32 value; /* size checked: it is u32 */
1373
1374 memset(wstats, 0, sizeof(*wstats));
1375 wstats->status = netif_running(dev);
1376 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1377 &value, sizeof(value)))
1378 wstats->discard.code += value;
1379 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1380 &value, sizeof(value)))
1381 wstats->discard.code += value;
1382 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1383 &value, sizeof(value)))
1384 wstats->discard.code += value;
1385 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1386 &value, sizeof(value)))
1387 wstats->discard.retries = value;
1388 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1389 &value, sizeof(value)))
1390 wstats->discard.misc += value;
1391 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1392 &value, sizeof(value)))
1393 wstats->discard.misc += value;
1394 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1395 &value, sizeof(value)))
1396 wstats->discard.misc += value;
1397 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1398 &value, sizeof(value)))
1399 wstats->discard.misc += value;
1400 return wstats;
1401 }
1402
1403 /**
1404 * wl3501_detach - deletes a driver "instance"
1405 * @link - FILL_IN
1406 *
1407 * This deletes a driver "instance". The device is de-registered with Card
1408 * Services. If it has been released, all local data structures are freed.
1409 * Otherwise, the structures will be freed when the device is released.
1410 */
1411 static void wl3501_detach(struct pcmcia_device *link)
1412 {
1413 struct net_device *dev = link->priv;
1414
1415 /* If the device is currently configured and active, we won't actually
1416 * delete it yet. Instead, it is marked so that when the release()
1417 * function is called, that will trigger a proper detach(). */
1418
1419 while (link->open > 0)
1420 wl3501_close(dev);
1421
1422 netif_device_detach(dev);
1423 wl3501_release(link);
1424
1425 unregister_netdev(dev);
1426
1427 if (link->priv)
1428 free_netdev(link->priv);
1429 }
1430
1431 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1432 union iwreq_data *wrqu, char *extra)
1433 {
1434 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1435 return 0;
1436 }
1437
1438 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1439 union iwreq_data *wrqu, char *extra)
1440 {
1441 struct wl3501_card *this = netdev_priv(dev);
1442 int channel = wrqu->freq.m;
1443 int rc = -EINVAL;
1444
1445 if (iw_valid_channel(this->reg_domain, channel)) {
1446 this->chan = channel;
1447 rc = wl3501_reset(dev);
1448 }
1449 return rc;
1450 }
1451
1452 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1453 union iwreq_data *wrqu, char *extra)
1454 {
1455 struct wl3501_card *this = netdev_priv(dev);
1456
1457 wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000;
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