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Merge tag 'for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power...
[mirror_ubuntu-focal-kernel.git] / drivers / net / wireless / wl3501_cs.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * WL3501 Wireless LAN PCMCIA Card Driver for Linux
4 * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw
5 * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 * Wireless extensions in 2.4 by Gustavo Niemeyer <niemeyer@conectiva.com>
7 *
8 * References used by Fox Chen while writing the original driver for 2.0.30:
9 *
10 * 1. WL24xx packet drivers (tooasm.asm)
11 * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO
12 * 3. IEEE 802.11
13 * 4. Linux network driver (/usr/src/linux/drivers/net)
14 * 5. ISA card driver - wl24.c
15 * 6. Linux PCMCIA skeleton driver - skeleton.c
16 * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c
17 *
18 * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12
19 * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode.
20 * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null
21 * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct
22 * ETHER/IP/UDP/TCP header, and acknowledgement overhead)
23 *
24 * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode,
25 * 173 Kbytes/s in TCP.
26 *
27 * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode
28 * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60)
29 */
30
31 #include <linux/delay.h>
32 #include <linux/types.h>
33 #include <linux/interrupt.h>
34 #include <linux/in.h>
35 #include <linux/kernel.h>
36 #include <linux/module.h>
37 #include <linux/fcntl.h>
38 #include <linux/if_arp.h>
39 #include <linux/ioport.h>
40 #include <linux/netdevice.h>
41 #include <linux/etherdevice.h>
42 #include <linux/skbuff.h>
43 #include <linux/slab.h>
44 #include <linux/string.h>
45 #include <linux/wireless.h>
46 #include <net/cfg80211.h>
47
48 #include <net/iw_handler.h>
49
50 #include <pcmcia/cistpl.h>
51 #include <pcmcia/cisreg.h>
52 #include <pcmcia/ds.h>
53
54 #include <asm/io.h>
55 #include <linux/uaccess.h>
56
57 #include "wl3501.h"
58
59 #ifndef __i386__
60 #define slow_down_io()
61 #endif
62
63 /* 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_request_mib(struct wl3501_card *this, u8 index, void *bf)
383 {
384 struct wl3501_get_req sig = {
385 .sig_id = WL3501_SIG_GET_REQ,
386 .mib_attrib = index,
387 };
388 unsigned long flags;
389 int rc = -EIO;
390
391 spin_lock_irqsave(&this->lock, flags);
392 if (wl3501_esbq_req_test(this)) {
393 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
394 if (ptr) {
395 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
396 wl3501_esbq_req(this, &ptr);
397 this->sig_get_confirm.mib_status = 255;
398 rc = 0;
399 }
400 }
401 spin_unlock_irqrestore(&this->lock, flags);
402
403 return rc;
404 }
405
406 static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
407 void *bf, int size)
408 {
409 int rc;
410
411 rc = wl3501_request_mib(this, index, bf);
412 if (rc)
413 return rc;
414
415 rc = wait_event_interruptible(this->wait,
416 this->sig_get_confirm.mib_status != 255);
417 if (rc)
418 return rc;
419
420 memcpy(bf, this->sig_get_confirm.mib_value, size);
421 return 0;
422 }
423
424 static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
425 {
426 struct wl3501_pwr_mgmt_req sig = {
427 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
428 .pwr_save = suspend,
429 .wake_up = !suspend,
430 .receive_dtims = 10,
431 };
432 unsigned long flags;
433 int rc = -EIO;
434
435 spin_lock_irqsave(&this->lock, flags);
436 if (wl3501_esbq_req_test(this)) {
437 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
438 if (ptr) {
439 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
440 wl3501_esbq_req(this, &ptr);
441 this->sig_pwr_mgmt_confirm.status = 255;
442 spin_unlock_irqrestore(&this->lock, flags);
443 rc = wait_event_interruptible(this->wait,
444 this->sig_pwr_mgmt_confirm.status != 255);
445 printk(KERN_INFO "%s: %s status=%d\n", __func__,
446 suspend ? "suspend" : "resume",
447 this->sig_pwr_mgmt_confirm.status);
448 goto out;
449 }
450 }
451 spin_unlock_irqrestore(&this->lock, flags);
452 out:
453 return rc;
454 }
455
456 /**
457 * wl3501_send_pkt - Send a packet.
458 * @this - card
459 *
460 * Send a packet.
461 *
462 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
463 * data[6] - data[11] is Src MAC Addr)
464 * Ref: IEEE 802.11
465 */
466 static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
467 {
468 u16 bf, sig_bf, next, tmplen, pktlen;
469 struct wl3501_md_req sig = {
470 .sig_id = WL3501_SIG_MD_REQ,
471 };
472 u8 *pdata = (char *)data;
473 int rc = -EIO;
474
475 if (wl3501_esbq_req_test(this)) {
476 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
477 rc = -ENOMEM;
478 if (!sig_bf) /* No free buffer available */
479 goto out;
480 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
481 if (!bf) {
482 /* No free buffer available */
483 wl3501_free_tx_buffer(this, sig_bf);
484 goto out;
485 }
486 rc = 0;
487 memcpy(&sig.daddr[0], pdata, 12);
488 pktlen = len - 12;
489 pdata += 12;
490 sig.data = bf;
491 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
492 u8 addr4[ETH_ALEN] = {
493 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
494 };
495
496 wl3501_set_to_wla(this, bf + 2 +
497 offsetof(struct wl3501_tx_hdr, addr4),
498 addr4, sizeof(addr4));
499 sig.size = pktlen + 24 + 4 + 6;
500 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
501 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
502 pktlen -= tmplen;
503 } else {
504 tmplen = pktlen;
505 pktlen = 0;
506 }
507 wl3501_set_to_wla(this,
508 bf + 2 + sizeof(struct wl3501_tx_hdr),
509 pdata, tmplen);
510 pdata += tmplen;
511 wl3501_get_from_wla(this, bf, &next, sizeof(next));
512 bf = next;
513 } else {
514 sig.size = pktlen + 24 + 4 - 2;
515 pdata += 2;
516 pktlen -= 2;
517 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
518 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
519 pktlen -= tmplen;
520 } else {
521 tmplen = pktlen;
522 pktlen = 0;
523 }
524 wl3501_set_to_wla(this, bf + 2 +
525 offsetof(struct wl3501_tx_hdr, addr4),
526 pdata, tmplen);
527 pdata += tmplen;
528 wl3501_get_from_wla(this, bf, &next, sizeof(next));
529 bf = next;
530 }
531 while (pktlen > 0) {
532 if (pktlen > 254) {
533 tmplen = 254;
534 pktlen -= 254;
535 } else {
536 tmplen = pktlen;
537 pktlen = 0;
538 }
539 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
540 pdata += tmplen;
541 wl3501_get_from_wla(this, bf, &next, sizeof(next));
542 bf = next;
543 }
544 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
545 wl3501_esbq_req(this, &sig_bf);
546 }
547 out:
548 return rc;
549 }
550
551 static int wl3501_mgmt_resync(struct wl3501_card *this)
552 {
553 struct wl3501_resync_req sig = {
554 .sig_id = WL3501_SIG_RESYNC_REQ,
555 };
556
557 return wl3501_esbq_exec(this, &sig, sizeof(sig));
558 }
559
560 static inline int wl3501_fw_bss_type(struct wl3501_card *this)
561 {
562 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
563 WL3501_NET_TYPE_ADHOC;
564 }
565
566 static inline int wl3501_fw_cap_info(struct wl3501_card *this)
567 {
568 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
569 WL3501_MGMT_CAPABILITY_IBSS;
570 }
571
572 static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
573 {
574 struct wl3501_scan_req sig = {
575 .sig_id = WL3501_SIG_SCAN_REQ,
576 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
577 .probe_delay = 0x10,
578 .min_chan_time = chan_time,
579 .max_chan_time = chan_time,
580 .bss_type = wl3501_fw_bss_type(this),
581 };
582
583 this->bss_cnt = this->join_sta_bss = 0;
584 return wl3501_esbq_exec(this, &sig, sizeof(sig));
585 }
586
587 static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
588 {
589 struct wl3501_join_req sig = {
590 .sig_id = WL3501_SIG_JOIN_REQ,
591 .timeout = 10,
592 .ds_pset = {
593 .el = {
594 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
595 .len = 1,
596 },
597 .chan = this->chan,
598 },
599 };
600
601 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
602 return wl3501_esbq_exec(this, &sig, sizeof(sig));
603 }
604
605 static int wl3501_mgmt_start(struct wl3501_card *this)
606 {
607 struct wl3501_start_req sig = {
608 .sig_id = WL3501_SIG_START_REQ,
609 .beacon_period = 400,
610 .dtim_period = 1,
611 .ds_pset = {
612 .el = {
613 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
614 .len = 1,
615 },
616 .chan = this->chan,
617 },
618 .bss_basic_rset = {
619 .el = {
620 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
621 .len = 2,
622 },
623 .data_rate_labels = {
624 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
625 IW_MGMT_RATE_LABEL_1MBIT,
626 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
627 IW_MGMT_RATE_LABEL_2MBIT,
628 },
629 },
630 .operational_rset = {
631 .el = {
632 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
633 .len = 2,
634 },
635 .data_rate_labels = {
636 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
637 IW_MGMT_RATE_LABEL_1MBIT,
638 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
639 IW_MGMT_RATE_LABEL_2MBIT,
640 },
641 },
642 .ibss_pset = {
643 .el = {
644 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
645 .len = 2,
646 },
647 .atim_window = 10,
648 },
649 .bss_type = wl3501_fw_bss_type(this),
650 .cap_info = wl3501_fw_cap_info(this),
651 };
652
653 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
654 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
655 return wl3501_esbq_exec(this, &sig, sizeof(sig));
656 }
657
658 static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
659 {
660 u16 i = 0;
661 int matchflag = 0;
662 struct wl3501_scan_confirm sig;
663
664 pr_debug("entry");
665 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
666 if (sig.status == WL3501_STATUS_SUCCESS) {
667 pr_debug("success");
668 if ((this->net_type == IW_MODE_INFRA &&
669 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
670 (this->net_type == IW_MODE_ADHOC &&
671 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
672 this->net_type == IW_MODE_AUTO) {
673 if (!this->essid.el.len)
674 matchflag = 1;
675 else if (this->essid.el.len == 3 &&
676 !memcmp(this->essid.essid, "ANY", 3))
677 matchflag = 1;
678 else if (this->essid.el.len != sig.ssid.el.len)
679 matchflag = 0;
680 else if (memcmp(this->essid.essid, sig.ssid.essid,
681 this->essid.el.len))
682 matchflag = 0;
683 else
684 matchflag = 1;
685 if (matchflag) {
686 for (i = 0; i < this->bss_cnt; i++) {
687 if (ether_addr_equal_unaligned(this->bss_set[i].bssid, sig.bssid)) {
688 matchflag = 0;
689 break;
690 }
691 }
692 }
693 if (matchflag && (i < 20)) {
694 memcpy(&this->bss_set[i].beacon_period,
695 &sig.beacon_period, 73);
696 this->bss_cnt++;
697 this->rssi = sig.rssi;
698 }
699 }
700 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
701 pr_debug("timeout");
702 this->join_sta_bss = 0;
703 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
704 if (!wl3501_mgmt_join(this, i))
705 break;
706 this->join_sta_bss = i;
707 if (this->join_sta_bss == this->bss_cnt) {
708 if (this->net_type == IW_MODE_INFRA)
709 wl3501_mgmt_scan(this, 100);
710 else {
711 this->adhoc_times++;
712 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
713 wl3501_mgmt_start(this);
714 else
715 wl3501_mgmt_scan(this, 100);
716 }
717 }
718 }
719 }
720
721 /**
722 * wl3501_block_interrupt - Mask interrupt from SUTRO
723 * @this - card
724 *
725 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
726 * Return: 1 if interrupt is originally enabled
727 */
728 static int wl3501_block_interrupt(struct wl3501_card *this)
729 {
730 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
731 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
732 WL3501_GCR_ENECINT));
733
734 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
735 return old & WL3501_GCR_ENECINT;
736 }
737
738 /**
739 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
740 * @this - card
741 *
742 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
743 * Return: 1 if interrupt is originally enabled
744 */
745 static int wl3501_unblock_interrupt(struct wl3501_card *this)
746 {
747 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
748 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
749 WL3501_GCR_ENECINT;
750
751 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
752 return old & WL3501_GCR_ENECINT;
753 }
754
755 /**
756 * wl3501_receive - Receive data from Receive Queue.
757 *
758 * Receive data from Receive Queue.
759 *
760 * @this: card
761 * @bf: address of host
762 * @size: size of buffer.
763 */
764 static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
765 {
766 u16 next_addr, next_addr1;
767 u8 *data = bf + 12;
768
769 size -= 12;
770 wl3501_get_from_wla(this, this->start_seg + 2,
771 &next_addr, sizeof(next_addr));
772 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
773 wl3501_get_from_wla(this,
774 this->start_seg +
775 sizeof(struct wl3501_rx_hdr), data,
776 WL3501_BLKSZ -
777 sizeof(struct wl3501_rx_hdr));
778 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
779 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
780 } else {
781 wl3501_get_from_wla(this,
782 this->start_seg +
783 sizeof(struct wl3501_rx_hdr),
784 data, size);
785 size = 0;
786 }
787 while (size > 0) {
788 if (size > WL3501_BLKSZ - 5) {
789 wl3501_get_from_wla(this, next_addr + 5, data,
790 WL3501_BLKSZ - 5);
791 size -= WL3501_BLKSZ - 5;
792 data += WL3501_BLKSZ - 5;
793 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
794 sizeof(next_addr1));
795 next_addr = next_addr1;
796 } else {
797 wl3501_get_from_wla(this, next_addr + 5, data, size);
798 size = 0;
799 }
800 }
801 return 0;
802 }
803
804 static void wl3501_esbq_req_free(struct wl3501_card *this)
805 {
806 u8 tmp;
807 u16 addr;
808
809 if (this->esbq_req_head == this->esbq_req_tail)
810 goto out;
811 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
812 if (!(tmp & 0x80))
813 goto out;
814 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
815 wl3501_free_tx_buffer(this, addr);
816 this->esbq_req_tail += 4;
817 if (this->esbq_req_tail >= this->esbq_req_end)
818 this->esbq_req_tail = this->esbq_req_start;
819 out:
820 return;
821 }
822
823 static int wl3501_esbq_confirm(struct wl3501_card *this)
824 {
825 u8 tmp;
826
827 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
828 return tmp & 0x80;
829 }
830
831 static void wl3501_online(struct net_device *dev)
832 {
833 struct wl3501_card *this = netdev_priv(dev);
834
835 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
836 dev->name, this->bssid);
837 netif_wake_queue(dev);
838 }
839
840 static void wl3501_esbq_confirm_done(struct wl3501_card *this)
841 {
842 u8 tmp = 0;
843
844 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
845 this->esbq_confirm += 4;
846 if (this->esbq_confirm >= this->esbq_confirm_end)
847 this->esbq_confirm = this->esbq_confirm_start;
848 }
849
850 static int wl3501_mgmt_auth(struct wl3501_card *this)
851 {
852 struct wl3501_auth_req sig = {
853 .sig_id = WL3501_SIG_AUTH_REQ,
854 .type = WL3501_SYS_TYPE_OPEN,
855 .timeout = 1000,
856 };
857
858 pr_debug("entry");
859 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
860 return wl3501_esbq_exec(this, &sig, sizeof(sig));
861 }
862
863 static int wl3501_mgmt_association(struct wl3501_card *this)
864 {
865 struct wl3501_assoc_req sig = {
866 .sig_id = WL3501_SIG_ASSOC_REQ,
867 .timeout = 1000,
868 .listen_interval = 5,
869 .cap_info = this->cap_info,
870 };
871
872 pr_debug("entry");
873 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
874 return wl3501_esbq_exec(this, &sig, sizeof(sig));
875 }
876
877 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
878 {
879 struct wl3501_card *this = netdev_priv(dev);
880 struct wl3501_join_confirm sig;
881
882 pr_debug("entry");
883 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
884 if (sig.status == WL3501_STATUS_SUCCESS) {
885 if (this->net_type == IW_MODE_INFRA) {
886 if (this->join_sta_bss < this->bss_cnt) {
887 const int i = this->join_sta_bss;
888 memcpy(this->bssid,
889 this->bss_set[i].bssid, ETH_ALEN);
890 this->chan = this->bss_set[i].ds_pset.chan;
891 iw_copy_mgmt_info_element(&this->keep_essid.el,
892 &this->bss_set[i].ssid.el);
893 wl3501_mgmt_auth(this);
894 }
895 } else {
896 const int i = this->join_sta_bss;
897
898 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
899 this->chan = this->bss_set[i].ds_pset.chan;
900 iw_copy_mgmt_info_element(&this->keep_essid.el,
901 &this->bss_set[i].ssid.el);
902 wl3501_online(dev);
903 }
904 } else {
905 int i;
906 this->join_sta_bss++;
907 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
908 if (!wl3501_mgmt_join(this, i))
909 break;
910 this->join_sta_bss = i;
911 if (this->join_sta_bss == this->bss_cnt) {
912 if (this->net_type == IW_MODE_INFRA)
913 wl3501_mgmt_scan(this, 100);
914 else {
915 this->adhoc_times++;
916 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
917 wl3501_mgmt_start(this);
918 else
919 wl3501_mgmt_scan(this, 100);
920 }
921 }
922 }
923 }
924
925 static inline void wl3501_alarm_interrupt(struct net_device *dev,
926 struct wl3501_card *this)
927 {
928 if (this->net_type == IW_MODE_INFRA) {
929 printk(KERN_INFO "Wireless LAN offline\n");
930 netif_stop_queue(dev);
931 wl3501_mgmt_resync(this);
932 }
933 }
934
935 static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
936 struct wl3501_card *this,
937 u16 addr)
938 {
939 struct wl3501_md_confirm sig;
940
941 pr_debug("entry");
942 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
943 wl3501_free_tx_buffer(this, sig.data);
944 if (netif_queue_stopped(dev))
945 netif_wake_queue(dev);
946 }
947
948 static inline void wl3501_md_ind_interrupt(struct net_device *dev,
949 struct wl3501_card *this, u16 addr)
950 {
951 struct wl3501_md_ind sig;
952 struct sk_buff *skb;
953 u8 rssi, addr4[ETH_ALEN];
954 u16 pkt_len;
955
956 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
957 this->start_seg = sig.data;
958 wl3501_get_from_wla(this,
959 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
960 &rssi, sizeof(rssi));
961 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
962
963 wl3501_get_from_wla(this,
964 sig.data +
965 offsetof(struct wl3501_rx_hdr, addr4),
966 &addr4, sizeof(addr4));
967 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
968 addr4[2] == 0x03 && addr4[4] == 0x00)) {
969 printk(KERN_INFO "Unsupported packet type!\n");
970 return;
971 }
972 pkt_len = sig.size + 12 - 24 - 4 - 6;
973
974 skb = dev_alloc_skb(pkt_len + 5);
975
976 if (!skb) {
977 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
978 dev->name, pkt_len);
979 dev->stats.rx_dropped++;
980 } else {
981 skb->dev = dev;
982 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
983 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
984 wl3501_receive(this, skb->data, pkt_len);
985 skb_put(skb, pkt_len);
986 skb->protocol = eth_type_trans(skb, dev);
987 dev->stats.rx_packets++;
988 dev->stats.rx_bytes += skb->len;
989 netif_rx(skb);
990 }
991 }
992
993 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
994 u16 addr, void *sig, int size)
995 {
996 pr_debug("entry");
997 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
998 sizeof(this->sig_get_confirm));
999 wake_up(&this->wait);
1000 }
1001
1002 static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1003 struct wl3501_card *this,
1004 u16 addr)
1005 {
1006 struct wl3501_start_confirm sig;
1007
1008 pr_debug("entry");
1009 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1010 if (sig.status == WL3501_STATUS_SUCCESS)
1011 netif_wake_queue(dev);
1012 }
1013
1014 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1015 u16 addr)
1016 {
1017 struct wl3501_card *this = netdev_priv(dev);
1018 struct wl3501_assoc_confirm sig;
1019
1020 pr_debug("entry");
1021 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1022
1023 if (sig.status == WL3501_STATUS_SUCCESS)
1024 wl3501_online(dev);
1025 }
1026
1027 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1028 u16 addr)
1029 {
1030 struct wl3501_auth_confirm sig;
1031
1032 pr_debug("entry");
1033 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1034
1035 if (sig.status == WL3501_STATUS_SUCCESS)
1036 wl3501_mgmt_association(this);
1037 else
1038 wl3501_mgmt_resync(this);
1039 }
1040
1041 static inline void wl3501_rx_interrupt(struct net_device *dev)
1042 {
1043 int morepkts;
1044 u16 addr;
1045 u8 sig_id;
1046 struct wl3501_card *this = netdev_priv(dev);
1047
1048 pr_debug("entry");
1049 loop:
1050 morepkts = 0;
1051 if (!wl3501_esbq_confirm(this))
1052 goto free;
1053 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1054 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1055
1056 switch (sig_id) {
1057 case WL3501_SIG_DEAUTH_IND:
1058 case WL3501_SIG_DISASSOC_IND:
1059 case WL3501_SIG_ALARM:
1060 wl3501_alarm_interrupt(dev, this);
1061 break;
1062 case WL3501_SIG_MD_CONFIRM:
1063 wl3501_md_confirm_interrupt(dev, this, addr);
1064 break;
1065 case WL3501_SIG_MD_IND:
1066 wl3501_md_ind_interrupt(dev, this, addr);
1067 break;
1068 case WL3501_SIG_GET_CONFIRM:
1069 wl3501_get_confirm_interrupt(this, addr,
1070 &this->sig_get_confirm,
1071 sizeof(this->sig_get_confirm));
1072 break;
1073 case WL3501_SIG_PWR_MGMT_CONFIRM:
1074 wl3501_get_confirm_interrupt(this, addr,
1075 &this->sig_pwr_mgmt_confirm,
1076 sizeof(this->sig_pwr_mgmt_confirm));
1077 break;
1078 case WL3501_SIG_START_CONFIRM:
1079 wl3501_start_confirm_interrupt(dev, this, addr);
1080 break;
1081 case WL3501_SIG_SCAN_CONFIRM:
1082 wl3501_mgmt_scan_confirm(this, addr);
1083 break;
1084 case WL3501_SIG_JOIN_CONFIRM:
1085 wl3501_mgmt_join_confirm(dev, addr);
1086 break;
1087 case WL3501_SIG_ASSOC_CONFIRM:
1088 wl3501_assoc_confirm_interrupt(dev, addr);
1089 break;
1090 case WL3501_SIG_AUTH_CONFIRM:
1091 wl3501_auth_confirm_interrupt(this, addr);
1092 break;
1093 case WL3501_SIG_RESYNC_CONFIRM:
1094 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1095 break;
1096 }
1097 wl3501_esbq_confirm_done(this);
1098 morepkts = 1;
1099 /* free request if necessary */
1100 free:
1101 wl3501_esbq_req_free(this);
1102 if (morepkts)
1103 goto loop;
1104 }
1105
1106 static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1107 {
1108 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1109 }
1110
1111 /**
1112 * wl3501_interrupt - Hardware interrupt from card.
1113 * @irq - Interrupt number
1114 * @dev_id - net_device
1115 *
1116 * We must acknowledge the interrupt as soon as possible, and block the
1117 * interrupt from the same card immediately to prevent re-entry.
1118 *
1119 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1120 * On the other hand, to prevent SUTRO from malfunctioning, we must
1121 * unlock the SUTRO as soon as possible.
1122 */
1123 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1124 {
1125 struct net_device *dev = dev_id;
1126 struct wl3501_card *this;
1127
1128 this = netdev_priv(dev);
1129 spin_lock(&this->lock);
1130 wl3501_ack_interrupt(this);
1131 wl3501_block_interrupt(this);
1132 wl3501_rx_interrupt(dev);
1133 wl3501_unblock_interrupt(this);
1134 spin_unlock(&this->lock);
1135
1136 return IRQ_HANDLED;
1137 }
1138
1139 static int wl3501_reset_board(struct wl3501_card *this)
1140 {
1141 u8 tmp = 0;
1142 int i, rc = 0;
1143
1144 /* Coreset */
1145 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1146 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1147 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1148
1149 /* Reset SRAM 0x480 to zero */
1150 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1151
1152 /* Start up */
1153 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1154
1155 WL3501_NOPLOOP(1024 * 50);
1156
1157 wl3501_unblock_interrupt(this); /* acme: was commented */
1158
1159 /* Polling Self_Test_Status */
1160 for (i = 0; i < 10000; i++) {
1161 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1162
1163 if (tmp == 'W') {
1164 /* firmware complete all test successfully */
1165 tmp = 'A';
1166 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1167 goto out;
1168 }
1169 WL3501_NOPLOOP(10);
1170 }
1171 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1172 rc = -ENODEV;
1173 out:
1174 return rc;
1175 }
1176
1177 static int wl3501_init_firmware(struct wl3501_card *this)
1178 {
1179 u16 ptr, next;
1180 int rc = wl3501_reset_board(this);
1181
1182 if (rc)
1183 goto fail;
1184 this->card_name[0] = '\0';
1185 wl3501_get_from_wla(this, 0x1a00,
1186 this->card_name, sizeof(this->card_name));
1187 this->card_name[sizeof(this->card_name) - 1] = '\0';
1188 this->firmware_date[0] = '\0';
1189 wl3501_get_from_wla(this, 0x1a40,
1190 this->firmware_date, sizeof(this->firmware_date));
1191 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1192 /* Switch to SRAM Page 0 */
1193 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1194 /* Read parameter from card */
1195 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1196 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1197 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1198 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1199 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1200 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1201 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1202 this->esbq_req_end += this->esbq_req_start;
1203 this->esbq_confirm = this->esbq_confirm_start;
1204 this->esbq_confirm_end += this->esbq_confirm_start;
1205 /* Initial Tx Buffer */
1206 this->tx_buffer_cnt = 1;
1207 ptr = this->tx_buffer_head;
1208 next = ptr + WL3501_BLKSZ;
1209 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1210 this->tx_buffer_cnt++;
1211 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1212 ptr = next;
1213 next = ptr + WL3501_BLKSZ;
1214 }
1215 rc = 0;
1216 next = 0;
1217 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1218 this->tx_buffer_tail = ptr;
1219 out:
1220 return rc;
1221 fail:
1222 printk(KERN_WARNING "%s: failed!\n", __func__);
1223 goto out;
1224 }
1225
1226 static int wl3501_close(struct net_device *dev)
1227 {
1228 struct wl3501_card *this = netdev_priv(dev);
1229 unsigned long flags;
1230 struct pcmcia_device *link;
1231 link = this->p_dev;
1232
1233 spin_lock_irqsave(&this->lock, flags);
1234 link->open--;
1235
1236 /* Stop wl3501_hard_start_xmit() from now on */
1237 netif_stop_queue(dev);
1238 wl3501_ack_interrupt(this);
1239
1240 /* Mask interrupts from the SUTRO */
1241 wl3501_block_interrupt(this);
1242
1243 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1244 spin_unlock_irqrestore(&this->lock, flags);
1245 return 0;
1246 }
1247
1248 /**
1249 * wl3501_reset - Reset the SUTRO.
1250 * @dev - network device
1251 *
1252 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1253 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1254 * is running. It seems to be dangerous.
1255 */
1256 static int wl3501_reset(struct net_device *dev)
1257 {
1258 struct wl3501_card *this = netdev_priv(dev);
1259 int rc = -ENODEV;
1260 unsigned long flags;
1261
1262 spin_lock_irqsave(&this->lock, flags);
1263 wl3501_block_interrupt(this);
1264
1265 if (wl3501_init_firmware(this)) {
1266 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1267 dev->name);
1268 /* Free IRQ, and mark IRQ as unused */
1269 free_irq(dev->irq, dev);
1270 goto out;
1271 }
1272
1273 /*
1274 * Queue has to be started only when the Card is Started
1275 */
1276 netif_stop_queue(dev);
1277 this->adhoc_times = 0;
1278 wl3501_ack_interrupt(this);
1279 wl3501_unblock_interrupt(this);
1280 wl3501_mgmt_scan(this, 100);
1281 pr_debug("%s: device reset", dev->name);
1282 rc = 0;
1283 out:
1284 spin_unlock_irqrestore(&this->lock, flags);
1285 return rc;
1286 }
1287
1288 static void wl3501_tx_timeout(struct net_device *dev)
1289 {
1290 struct net_device_stats *stats = &dev->stats;
1291 int rc;
1292
1293 stats->tx_errors++;
1294 rc = wl3501_reset(dev);
1295 if (rc)
1296 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1297 dev->name, rc);
1298 else {
1299 netif_trans_update(dev); /* prevent tx timeout */
1300 netif_wake_queue(dev);
1301 }
1302 }
1303
1304 /*
1305 * Return : 0 - OK
1306 * 1 - Could not transmit (dev_queue_xmit will queue it)
1307 * and try to sent it later
1308 */
1309 static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1310 struct net_device *dev)
1311 {
1312 int enabled, rc;
1313 struct wl3501_card *this = netdev_priv(dev);
1314 unsigned long flags;
1315
1316 spin_lock_irqsave(&this->lock, flags);
1317 enabled = wl3501_block_interrupt(this);
1318 rc = wl3501_send_pkt(this, skb->data, skb->len);
1319 if (enabled)
1320 wl3501_unblock_interrupt(this);
1321 if (rc) {
1322 ++dev->stats.tx_dropped;
1323 netif_stop_queue(dev);
1324 } else {
1325 ++dev->stats.tx_packets;
1326 dev->stats.tx_bytes += skb->len;
1327 kfree_skb(skb);
1328
1329 if (this->tx_buffer_cnt < 2)
1330 netif_stop_queue(dev);
1331 }
1332 spin_unlock_irqrestore(&this->lock, flags);
1333 return NETDEV_TX_OK;
1334 }
1335
1336 static int wl3501_open(struct net_device *dev)
1337 {
1338 int rc = -ENODEV;
1339 struct wl3501_card *this = netdev_priv(dev);
1340 unsigned long flags;
1341 struct pcmcia_device *link;
1342 link = this->p_dev;
1343
1344 spin_lock_irqsave(&this->lock, flags);
1345 if (!pcmcia_dev_present(link))
1346 goto out;
1347 netif_device_attach(dev);
1348 link->open++;
1349
1350 /* Initial WL3501 firmware */
1351 pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1352 if (wl3501_init_firmware(this))
1353 goto fail;
1354 /* Initial device variables */
1355 this->adhoc_times = 0;
1356 /* Acknowledge Interrupt, for cleaning last state */
1357 wl3501_ack_interrupt(this);
1358
1359 /* Enable interrupt from card after all */
1360 wl3501_unblock_interrupt(this);
1361 wl3501_mgmt_scan(this, 100);
1362 rc = 0;
1363 pr_debug("%s: WL3501 opened", dev->name);
1364 printk(KERN_INFO "%s: Card Name: %s\n"
1365 "%s: Firmware Date: %s\n",
1366 dev->name, this->card_name,
1367 dev->name, this->firmware_date);
1368 out:
1369 spin_unlock_irqrestore(&this->lock, flags);
1370 return rc;
1371 fail:
1372 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1373 goto out;
1374 }
1375
1376 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1377 {
1378 struct wl3501_card *this = netdev_priv(dev);
1379 struct iw_statistics *wstats = &this->wstats;
1380 u32 value; /* size checked: it is u32 */
1381
1382 memset(wstats, 0, sizeof(*wstats));
1383 wstats->status = netif_running(dev);
1384 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1385 &value, sizeof(value)))
1386 wstats->discard.code += value;
1387 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1388 &value, sizeof(value)))
1389 wstats->discard.code += value;
1390 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1391 &value, sizeof(value)))
1392 wstats->discard.code += value;
1393 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1394 &value, sizeof(value)))
1395 wstats->discard.retries = value;
1396 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1397 &value, sizeof(value)))
1398 wstats->discard.misc += value;
1399 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1400 &value, sizeof(value)))
1401 wstats->discard.misc += value;
1402 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1403 &value, sizeof(value)))
1404 wstats->discard.misc += value;
1405 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1406 &value, sizeof(value)))
1407 wstats->discard.misc += value;
1408 return wstats;
1409 }
1410
1411 /**
1412 * wl3501_detach - deletes a driver "instance"
1413 * @link - FILL_IN
1414 *
1415 * This deletes a driver "instance". The device is de-registered with Card
1416 * Services. If it has been released, all local data structures are freed.
1417 * Otherwise, the structures will be freed when the device is released.
1418 */
1419 static void wl3501_detach(struct pcmcia_device *link)
1420 {
1421 struct net_device *dev = link->priv;
1422
1423 /* If the device is currently configured and active, we won't actually
1424 * delete it yet. Instead, it is marked so that when the release()
1425 * function is called, that will trigger a proper detach(). */
1426
1427 while (link->open > 0)
1428 wl3501_close(dev);
1429
1430 netif_device_detach(dev);
1431 wl3501_release(link);
1432
1433 unregister_netdev(dev);
1434
1435 if (link->priv)
1436 free_netdev(link->priv);
1437 }
1438
1439 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1440 union iwreq_data *wrqu, char *extra)
1441 {
1442 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1443 return 0;
1444 }
1445
1446 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1447 union iwreq_data *wrqu, char *extra)
1448 {
1449 struct wl3501_card *this = netdev_priv(dev);
1450 int channel = wrqu->freq.m;
1451 int rc = -EINVAL;
1452
1453 if (iw_valid_channel(this->reg_domain, channel)) {
1454 this->chan = channel;
1455 rc = wl3501_reset(dev);
1456 }
1457 return rc;
1458 }
1459
1460 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1461 union iwreq_data *wrqu, char *extra)
1462 {
1463 struct wl3501_card *this = netdev_priv(dev);
1464
1465 wrqu->freq.m = 100000 *
1466 ieee80211_channel_to_frequency(this->chan, NL80211_BAND_2GHZ);
1467 wrqu->freq.e = 1;
1468 return 0;
1469 }
1470
1471 static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1472 union iwreq_data *wrqu, char *extra)
1473 {
1474 int rc = -EINVAL;
1475
1476 if (wrqu->mode == IW_MODE_INFRA ||
1477 wrqu->mode == IW_MODE_ADHOC ||
1478 wrqu->mode == IW_MODE_AUTO) {
1479 struct wl3501_card *this = netdev_priv(dev);
1480
1481 this->net_type = wrqu->mode;
1482 rc = wl3501_reset(dev);
1483 }
1484 return rc;
1485 }
1486
1487 static int wl3501_get_mode(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->mode = this->net_type;
1493 return 0;
1494 }
1495
1496 static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1497 union iwreq_data *wrqu, char *extra)
1498 {
1499 struct wl3501_card *this = netdev_priv(dev);
1500
1501 wrqu->sens.value = this->rssi;
1502 wrqu->sens.disabled = !wrqu->sens.value;
1503 wrqu->sens.fixed = 1;
1504 return 0;
1505 }
1506
1507 static int wl3501_get_range(struct net_device *dev,
1508 struct iw_request_info *info,
1509 union iwreq_data *wrqu, char *extra)
1510 {
1511 struct iw_range *range = (struct iw_range *)extra;
1512
1513 /* Set the length (very important for backward compatibility) */
1514 wrqu->data.length = sizeof(*range);
1515
1516 /* Set all the info we don't care or don't know about to zero */
1517 memset(range, 0, sizeof(*range));
1518
1519 /* Set the Wireless Extension versions */
1520 range->we_version_compiled = WIRELESS_EXT;
1521 range->we_version_source = 1;
1522 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1523 /* FIXME: study the code to fill in more fields... */
1524 return 0;
1525 }
1526
1527 static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1528 union iwreq_data *wrqu, char *extra)
1529 {
1530 struct wl3501_card *this = netdev_priv(dev);
1531 int rc = -EINVAL;
1532
1533 /* FIXME: we support other ARPHRDs...*/
1534 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1535 goto out;
1536 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data)) {
1537 /* FIXME: rescan? */
1538 } else
1539 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1540 /* FIXME: rescan? deassoc & scan? */
1541 rc = 0;
1542 out:
1543 return rc;
1544 }
1545
1546 static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1547 union iwreq_data *wrqu, char *extra)
1548 {
1549 struct wl3501_card *this = netdev_priv(dev);
1550
1551 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1552 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1553 return 0;
1554 }
1555
1556 static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1557 union iwreq_data *wrqu, char *extra)
1558 {
1559 /*
1560 * FIXME: trigger scanning with a reset, yes, I'm lazy
1561 */
1562 return wl3501_reset(dev);
1563 }
1564
1565 static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1566 union iwreq_data *wrqu, char *extra)
1567 {
1568 struct wl3501_card *this = netdev_priv(dev);
1569 int i;
1570 char *current_ev = extra;
1571 struct iw_event iwe;
1572
1573 for (i = 0; i < this->bss_cnt; ++i) {
1574 iwe.cmd = SIOCGIWAP;
1575 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1576 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
1577 current_ev = iwe_stream_add_event(info, current_ev,
1578 extra + IW_SCAN_MAX_DATA,
1579 &iwe, IW_EV_ADDR_LEN);
1580 iwe.cmd = SIOCGIWESSID;
1581 iwe.u.data.flags = 1;
1582 iwe.u.data.length = this->bss_set[i].ssid.el.len;
1583 current_ev = iwe_stream_add_point(info, current_ev,
1584 extra + IW_SCAN_MAX_DATA,
1585 &iwe,
1586 this->bss_set[i].ssid.essid);
1587 iwe.cmd = SIOCGIWMODE;
1588 iwe.u.mode = this->bss_set[i].bss_type;
1589 current_ev = iwe_stream_add_event(info, current_ev,
1590 extra + IW_SCAN_MAX_DATA,
1591 &iwe, IW_EV_UINT_LEN);
1592 iwe.cmd = SIOCGIWFREQ;
1593 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1594 iwe.u.freq.e = 0;
1595 current_ev = iwe_stream_add_event(info, current_ev,
1596 extra + IW_SCAN_MAX_DATA,
1597 &iwe, IW_EV_FREQ_LEN);
1598 iwe.cmd = SIOCGIWENCODE;
1599 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1600 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1601 else
1602 iwe.u.data.flags = IW_ENCODE_DISABLED;
1603 iwe.u.data.length = 0;
1604 current_ev = iwe_stream_add_point(info, current_ev,
1605 extra + IW_SCAN_MAX_DATA,
1606 &iwe, NULL);
1607 }
1608 /* Length of data */
1609 wrqu->data.length = (current_ev - extra);
1610 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1611 return 0;
1612 }
1613
1614 static int wl3501_set_essid(struct net_device *dev,
1615 struct iw_request_info *info,
1616 union iwreq_data *wrqu, char *extra)
1617 {
1618 struct wl3501_card *this = netdev_priv(dev);
1619
1620 if (wrqu->data.flags) {
1621 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1622 &this->essid.el,
1623 extra, wrqu->data.length);
1624 } else { /* We accept any ESSID */
1625 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1626 &this->essid.el, "ANY", 3);
1627 }
1628 return wl3501_reset(dev);
1629 }
1630
1631 static int wl3501_get_essid(struct net_device *dev,
1632 struct iw_request_info *info,
1633 union iwreq_data *wrqu, char *extra)
1634 {
1635 struct wl3501_card *this = netdev_priv(dev);
1636 unsigned long flags;
1637
1638 spin_lock_irqsave(&this->lock, flags);
1639 wrqu->essid.flags = 1;
1640 wrqu->essid.length = this->essid.el.len;
1641 memcpy(extra, this->essid.essid, this->essid.el.len);
1642 spin_unlock_irqrestore(&this->lock, flags);
1643 return 0;
1644 }
1645
1646 static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1647 union iwreq_data *wrqu, char *extra)
1648 {
1649 struct wl3501_card *this = netdev_priv(dev);
1650
1651 if (wrqu->data.length > sizeof(this->nick))
1652 return -E2BIG;
1653 strlcpy(this->nick, extra, wrqu->data.length);
1654 return 0;
1655 }
1656
1657 static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1658 union iwreq_data *wrqu, char *extra)
1659 {
1660 struct wl3501_card *this = netdev_priv(dev);
1661
1662 strlcpy(extra, this->nick, 32);
1663 wrqu->data.length = strlen(extra);
1664 return 0;
1665 }
1666
1667 static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1668 union iwreq_data *wrqu, char *extra)
1669 {
1670 /*
1671 * FIXME: have to see from where to get this info, perhaps this card
1672 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1673 * common with the Planet Access Points. -acme
1674 */
1675 wrqu->bitrate.value = 2000000;
1676 wrqu->bitrate.fixed = 1;
1677 return 0;
1678 }
1679
1680 static int wl3501_get_rts_threshold(struct net_device *dev,
1681 struct iw_request_info *info,
1682 union iwreq_data *wrqu, char *extra)
1683 {
1684 u16 threshold; /* size checked: it is u16 */
1685 struct wl3501_card *this = netdev_priv(dev);
1686 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1687 &threshold, sizeof(threshold));
1688 if (!rc) {
1689 wrqu->rts.value = threshold;
1690 wrqu->rts.disabled = threshold >= 2347;
1691 wrqu->rts.fixed = 1;
1692 }
1693 return rc;
1694 }
1695
1696 static int wl3501_get_frag_threshold(struct net_device *dev,
1697 struct iw_request_info *info,
1698 union iwreq_data *wrqu, char *extra)
1699 {
1700 u16 threshold; /* size checked: it is u16 */
1701 struct wl3501_card *this = netdev_priv(dev);
1702 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1703 &threshold, sizeof(threshold));
1704 if (!rc) {
1705 wrqu->frag.value = threshold;
1706 wrqu->frag.disabled = threshold >= 2346;
1707 wrqu->frag.fixed = 1;
1708 }
1709 return rc;
1710 }
1711
1712 static int wl3501_get_txpow(struct net_device *dev,
1713 struct iw_request_info *info,
1714 union iwreq_data *wrqu, char *extra)
1715 {
1716 u16 txpow;
1717 struct wl3501_card *this = netdev_priv(dev);
1718 int rc = wl3501_get_mib_value(this,
1719 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1720 &txpow, sizeof(txpow));
1721 if (!rc) {
1722 wrqu->txpower.value = txpow;
1723 wrqu->txpower.disabled = 0;
1724 /*
1725 * From the MIB values I think this can be configurable,
1726 * as it lists several tx power levels -acme
1727 */
1728 wrqu->txpower.fixed = 0;
1729 wrqu->txpower.flags = IW_TXPOW_MWATT;
1730 }
1731 return rc;
1732 }
1733
1734 static int wl3501_get_retry(struct net_device *dev,
1735 struct iw_request_info *info,
1736 union iwreq_data *wrqu, char *extra)
1737 {
1738 u8 retry; /* size checked: it is u8 */
1739 struct wl3501_card *this = netdev_priv(dev);
1740 int rc = wl3501_get_mib_value(this,
1741 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1742 &retry, sizeof(retry));
1743 if (rc)
1744 goto out;
1745 if (wrqu->retry.flags & IW_RETRY_LONG) {
1746 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1747 goto set_value;
1748 }
1749 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1750 &retry, sizeof(retry));
1751 if (rc)
1752 goto out;
1753 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1754 set_value:
1755 wrqu->retry.value = retry;
1756 wrqu->retry.disabled = 0;
1757 out:
1758 return rc;
1759 }
1760
1761 static int wl3501_get_encode(struct net_device *dev,
1762 struct iw_request_info *info,
1763 union iwreq_data *wrqu, char *extra)
1764 {
1765 u8 implemented, restricted, keys[100], len_keys, tocopy;
1766 struct wl3501_card *this = netdev_priv(dev);
1767 int rc = wl3501_get_mib_value(this,
1768 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1769 &implemented, sizeof(implemented));
1770 if (rc)
1771 goto out;
1772 if (!implemented) {
1773 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1774 goto out;
1775 }
1776 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1777 &restricted, sizeof(restricted));
1778 if (rc)
1779 goto out;
1780 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1781 IW_ENCODE_OPEN;
1782 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1783 &len_keys, sizeof(len_keys));
1784 if (rc)
1785 goto out;
1786 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1787 keys, len_keys);
1788 if (rc)
1789 goto out;
1790 tocopy = min_t(u16, len_keys, wrqu->encoding.length);
1791 tocopy = min_t(u8, tocopy, 100);
1792 wrqu->encoding.length = tocopy;
1793 memcpy(extra, keys, tocopy);
1794 out:
1795 return rc;
1796 }
1797
1798 static int wl3501_get_power(struct net_device *dev,
1799 struct iw_request_info *info,
1800 union iwreq_data *wrqu, char *extra)
1801 {
1802 u8 pwr_state;
1803 struct wl3501_card *this = netdev_priv(dev);
1804 int rc = wl3501_get_mib_value(this,
1805 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1806 &pwr_state, sizeof(pwr_state));
1807 if (rc)
1808 goto out;
1809 wrqu->power.disabled = !pwr_state;
1810 wrqu->power.flags = IW_POWER_ON;
1811 out:
1812 return rc;
1813 }
1814
1815 static const iw_handler wl3501_handler[] = {
1816 IW_HANDLER(SIOCGIWNAME, wl3501_get_name),
1817 IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq),
1818 IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq),
1819 IW_HANDLER(SIOCSIWMODE, wl3501_set_mode),
1820 IW_HANDLER(SIOCGIWMODE, wl3501_get_mode),
1821 IW_HANDLER(SIOCGIWSENS, wl3501_get_sens),
1822 IW_HANDLER(SIOCGIWRANGE, wl3501_get_range),
1823 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1824 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1825 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1826 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1827 IW_HANDLER(SIOCSIWAP, wl3501_set_wap),
1828 IW_HANDLER(SIOCGIWAP, wl3501_get_wap),
1829 IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan),
1830 IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan),
1831 IW_HANDLER(SIOCSIWESSID, wl3501_set_essid),
1832 IW_HANDLER(SIOCGIWESSID, wl3501_get_essid),
1833 IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick),
1834 IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick),
1835 IW_HANDLER(SIOCGIWRATE, wl3501_get_rate),
1836 IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold),
1837 IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold),
1838 IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow),
1839 IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry),
1840 IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode),
1841 IW_HANDLER(SIOCGIWPOWER, wl3501_get_power),
1842 };
1843
1844 static const struct iw_handler_def wl3501_handler_def = {
1845 .num_standard = ARRAY_SIZE(wl3501_handler),
1846 .standard = (iw_handler *)wl3501_handler,
1847 .get_wireless_stats = wl3501_get_wireless_stats,
1848 };
1849
1850 static const struct net_device_ops wl3501_netdev_ops = {
1851 .ndo_open = wl3501_open,
1852 .ndo_stop = wl3501_close,
1853 .ndo_start_xmit = wl3501_hard_start_xmit,
1854 .ndo_tx_timeout = wl3501_tx_timeout,
1855 .ndo_set_mac_address = eth_mac_addr,
1856 .ndo_validate_addr = eth_validate_addr,
1857 };
1858
1859 static int wl3501_probe(struct pcmcia_device *p_dev)
1860 {
1861 struct net_device *dev;
1862 struct wl3501_card *this;
1863
1864 /* The io structure describes IO port mapping */
1865 p_dev->resource[0]->end = 16;
1866 p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8;
1867
1868 /* General socket configuration */
1869 p_dev->config_flags = CONF_ENABLE_IRQ;
1870 p_dev->config_index = 1;
1871
1872 dev = alloc_etherdev(sizeof(struct wl3501_card));
1873 if (!dev)
1874 goto out_link;
1875
1876
1877 dev->netdev_ops = &wl3501_netdev_ops;
1878 dev->watchdog_timeo = 5 * HZ;
1879
1880 this = netdev_priv(dev);
1881 this->wireless_data.spy_data = &this->spy_data;
1882 this->p_dev = p_dev;
1883 dev->wireless_data = &this->wireless_data;
1884 dev->wireless_handlers = &wl3501_handler_def;
1885 netif_stop_queue(dev);
1886 p_dev->priv = dev;
1887
1888 return wl3501_config(p_dev);
1889 out_link:
1890 return -ENOMEM;
1891 }
1892
1893 static int wl3501_config(struct pcmcia_device *link)
1894 {
1895 struct net_device *dev = link->priv;
1896 int i = 0, j, ret;
1897 struct wl3501_card *this;
1898
1899 /* Try allocating IO ports. This tries a few fixed addresses. If you
1900 * want, you can also read the card's config table to pick addresses --
1901 * see the serial driver for an example. */
1902 link->io_lines = 5;
1903
1904 for (j = 0x280; j < 0x400; j += 0x20) {
1905 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1906 * 0x200-0x2ff, and so on, because this seems safer */
1907 link->resource[0]->start = j;
1908 link->resource[1]->start = link->resource[0]->start + 0x10;
1909 i = pcmcia_request_io(link);
1910 if (i == 0)
1911 break;
1912 }
1913 if (i != 0)
1914 goto failed;
1915
1916 /* Now allocate an interrupt line. Note that this does not actually
1917 * assign a handler to the interrupt. */
1918
1919 ret = pcmcia_request_irq(link, wl3501_interrupt);
1920 if (ret)
1921 goto failed;
1922
1923 ret = pcmcia_enable_device(link);
1924 if (ret)
1925 goto failed;
1926
1927 dev->irq = link->irq;
1928 dev->base_addr = link->resource[0]->start;
1929 SET_NETDEV_DEV(dev, &link->dev);
1930 if (register_netdev(dev)) {
1931 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1932 goto failed;
1933 }
1934
1935 this = netdev_priv(dev);
1936
1937 this->base_addr = dev->base_addr;
1938
1939 if (!wl3501_get_flash_mac_addr(this)) {
1940 printk(KERN_WARNING "%s: Can't read MAC addr in flash ROM?\n",
1941 dev->name);
1942 unregister_netdev(dev);
1943 goto failed;
1944 }
1945
1946 for (i = 0; i < 6; i++)
1947 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
1948
1949 /* print probe information */
1950 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
1951 "MAC addr in flash ROM:%pM\n",
1952 dev->name, this->base_addr, (int)dev->irq,
1953 dev->dev_addr);
1954 /*
1955 * Initialize card parameters - added by jss
1956 */
1957 this->net_type = IW_MODE_INFRA;
1958 this->bss_cnt = 0;
1959 this->join_sta_bss = 0;
1960 this->adhoc_times = 0;
1961 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
1962 "ANY", 3);
1963 this->card_name[0] = '\0';
1964 this->firmware_date[0] = '\0';
1965 this->rssi = 255;
1966 this->chan = iw_default_channel(this->reg_domain);
1967 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
1968 spin_lock_init(&this->lock);
1969 init_waitqueue_head(&this->wait);
1970 netif_start_queue(dev);
1971 return 0;
1972
1973 failed:
1974 wl3501_release(link);
1975 return -ENODEV;
1976 }
1977
1978 static void wl3501_release(struct pcmcia_device *link)
1979 {
1980 pcmcia_disable_device(link);
1981 }
1982
1983 static int wl3501_suspend(struct pcmcia_device *link)
1984 {
1985 struct net_device *dev = link->priv;
1986
1987 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
1988 if (link->open)
1989 netif_device_detach(dev);
1990
1991 return 0;
1992 }
1993
1994 static int wl3501_resume(struct pcmcia_device *link)
1995 {
1996 struct net_device *dev = link->priv;
1997
1998 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
1999 if (link->open) {
2000 wl3501_reset(dev);
2001 netif_device_attach(dev);
2002 }
2003
2004 return 0;
2005 }
2006
2007
2008 static const struct pcmcia_device_id wl3501_ids[] = {
2009 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2010 PCMCIA_DEVICE_NULL
2011 };
2012 MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2013
2014 static struct pcmcia_driver wl3501_driver = {
2015 .owner = THIS_MODULE,
2016 .name = "wl3501_cs",
2017 .probe = wl3501_probe,
2018 .remove = wl3501_detach,
2019 .id_table = wl3501_ids,
2020 .suspend = wl3501_suspend,
2021 .resume = wl3501_resume,
2022 };
2023 module_pcmcia_driver(wl3501_driver);
2024
2025 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2026 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2027 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2028 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2029 MODULE_LICENSE("GPL");
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