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[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / wl3501_cs.c
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1da177e4
LT		 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 */
1da177e4 29
1da177e4
LT		 30#include <linux/delay.h>
31#include <linux/types.h>
32#include <linux/ethtool.h>
33#include <linux/init.h>
34#include <linux/interrupt.h>
35#include <linux/in.h>
36#include <linux/kernel.h>
37#include <linux/module.h>
38#include <linux/fcntl.h>
39#include <linux/if_arp.h>
40#include <linux/ioport.h>
41#include <linux/netdevice.h>
42#include <linux/etherdevice.h>
43#include <linux/skbuff.h>
44#include <linux/slab.h>
45#include <linux/string.h>
46#include <linux/wireless.h>
9ee677c2 47#include <linux/ieee80211.h>
1da177e4
LT		 48
49#include <net/iw_handler.h>
50
1da177e4
LT		 51#include <pcmcia/cistpl.h>
52#include <pcmcia/cisreg.h>
53#include <pcmcia/ds.h>
54
55#include <asm/io.h>
56#include <asm/uaccess.h>
57#include <asm/system.h>
58
59#include "wl3501.h"
60
61#ifndef __i386__
62#define slow_down_io()
63#endif
64
65/* For rough constant delay */
66#define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
67
2caff147 68
1da177e4
LT		 69
70#define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
71#define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
72#define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
73
74#define WL3501_RELEASE_TIMEOUT (25 * HZ)
75#define WL3501_MAX_ADHOC_TRIES 16
76
77#define WL3501_RESUME 0
78#define WL3501_SUSPEND 1
79
15b99ac1 80static int wl3501_config(struct pcmcia_device *link);
fba395ee 81static void wl3501_release(struct pcmcia_device *link);
1da177e4 82
1da177e4
LT		 83static const struct {
84 int reg_domain;
85 int min, max, deflt;
86} iw_channel_table[] = {
87 {
88 .reg_domain = IW_REG_DOMAIN_FCC,
89 .min = 1,
90 .max = 11,
91 .deflt = 1,
92 },
93 {
94 .reg_domain = IW_REG_DOMAIN_DOC,
95 .min = 1,
96 .max = 11,
97 .deflt = 1,
98 },
99 {
100 .reg_domain = IW_REG_DOMAIN_ETSI,
101 .min = 1,
102 .max = 13,
103 .deflt = 1,
104 },
105 {
106 .reg_domain = IW_REG_DOMAIN_SPAIN,
107 .min = 10,
108 .max = 11,
109 .deflt = 10,
110 },
111 {
112 .reg_domain = IW_REG_DOMAIN_FRANCE,
113 .min = 10,
114 .max = 13,
115 .deflt = 10,
116 },
117 {
118 .reg_domain = IW_REG_DOMAIN_MKK,
119 .min = 14,
120 .max = 14,
121 .deflt = 14,
122 },
123 {
124 .reg_domain = IW_REG_DOMAIN_MKK1,
125 .min = 1,
126 .max = 14,
127 .deflt = 1,
128 },
129 {
130 .reg_domain = IW_REG_DOMAIN_ISRAEL,
131 .min = 3,
132 .max = 9,
133 .deflt = 9,
134 },
135};
136
137/**
138 * iw_valid_channel - validate channel in regulatory domain
139 * @reg_comain - regulatory domain
140 * @channel - channel to validate
141 *
142 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
143 */
144static int iw_valid_channel(int reg_domain, int channel)
145{
146 int i, rc = 0;
147
148 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
149 if (reg_domain == iw_channel_table[i].reg_domain) {
150 rc = channel >= iw_channel_table[i].min &&
151 channel <= iw_channel_table[i].max;
152 break;
153 }
154 return rc;
155}
156
157/**
158 * iw_default_channel - get default channel for a regulatory domain
159 * @reg_comain - regulatory domain
160 *
161 * Returns the default channel for a regulatory domain
162 */
163static int iw_default_channel(int reg_domain)
164{
165 int i, rc = 1;
166
167 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
168 if (reg_domain == iw_channel_table[i].reg_domain) {
169 rc = iw_channel_table[i].deflt;
170 break;
171 }
172 return rc;
173}
174
175static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
176 struct iw_mgmt_info_element *el,
177 void *value, int len)
178{
179 el->id = id;
180 el->len = len;
181 memcpy(el->data, value, len);
182}
183
184static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
185 struct iw_mgmt_info_element *from)
186{
187 iw_set_mgmt_info_element(from->id, to, from->data, from->len);
188}
189
1da177e4
LT		 190static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
191{
192 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
193}
194
195/*
196 * Get Ethernet MAC addresss.
197 *
198 * WARNING: We switch to FPAGE0 and switc back again.
199 * Making sure there is no other WL function beening called by ISR.
200 */
201static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
202{
203 int base_addr = this->base_addr;
204
205 /* get MAC addr */
206 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
207 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
208 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
209
210 /* wait for reading EEPROM */
211 WL3501_NOPLOOP(100);
212 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
213 WL3501_NOPLOOP(100);
214 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
215 WL3501_NOPLOOP(100);
216 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
217 WL3501_NOPLOOP(100);
218 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
219 WL3501_NOPLOOP(100);
220 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
221 WL3501_NOPLOOP(100);
222 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
223 WL3501_NOPLOOP(100);
224 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
225 WL3501_NOPLOOP(100);
226 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
227 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
228 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
229 WL3501_NOPLOOP(100);
230 this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
231 WL3501_NOPLOOP(100);
232 this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
233 /* switch to SRAM Page 0 (for safety) */
234 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
235
236 /* The MAC addr should be 00:60:... */
237 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
238}
239
240/**
241 * wl3501_set_to_wla - Move 'size' bytes from PC to card
242 * @dest: Card addressing space
243 * @src: PC addressing space
244 * @size: Bytes to move
245 *
246 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
247 */
ff1d2767
JM		 248static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
249 int size)
1da177e4
LT		 250{
251 /* switch to SRAM Page 0 */
252 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
253 WL3501_BSS_SPAGE0);
254 /* set LMAL and LMAH */
255 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
256 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
257
258 /* rep out to Port A */
259 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
260}
261
262/**
263 * wl3501_get_from_wla - Move 'size' bytes from card to PC
264 * @src: Card addressing space
265 * @dest: PC addressing space
266 * @size: Bytes to move
267 *
268 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
269 */
ff1d2767
JM		 270static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
271 int size)
1da177e4
LT		 272{
273 /* switch to SRAM Page 0 */
274 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
275 WL3501_BSS_SPAGE0);
276 /* set LMAL and LMAH */
277 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
278 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
279
280 /* rep get from Port A */
281 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
282}
283
284/*
285 * Get/Allocate a free Tx Data Buffer
286 *
287 * *--------------*-----------------*----------------------------------*
288 * | PLCP | MAC Header | DST SRC Data ... |
289 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
290 * *--------------*-----------------*----------------------------------*
291 * \ \- IEEE 802.11 -/ \-------------- len --------------/
292 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
293 *
294 * Return = Postion in Card
295 */
296static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
297{
298 u16 next, blk_cnt = 0, zero = 0;
299 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
300 u16 ret = 0;
301
302 if (full_len > this->tx_buffer_cnt * 254)
303 goto out;
304 ret = this->tx_buffer_head;
305 while (full_len) {
306 if (full_len < 254)
307 full_len = 0;
308 else
309 full_len -= 254;
310 wl3501_get_from_wla(this, this->tx_buffer_head, &next,
311 sizeof(next));
312 if (!full_len)
313 wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
314 sizeof(zero));
315 this->tx_buffer_head = next;
316 blk_cnt++;
317 /* if buffer is not enough */
318 if (!next && full_len) {
319 this->tx_buffer_head = ret;
320 ret = 0;
321 goto out;
322 }
323 }
324 this->tx_buffer_cnt -= blk_cnt;
325out:
326 return ret;
327}
328
329/*
330 * Free an allocated Tx Buffer. ptr must be correct position.
331 */
332static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
333{
334 /* check if all space is not free */
335 if (!this->tx_buffer_head)
336 this->tx_buffer_head = ptr;
337 else
338 wl3501_set_to_wla(this, this->tx_buffer_tail,
339 &ptr, sizeof(ptr));
340 while (ptr) {
341 u16 next;
342
343 this->tx_buffer_cnt++;
344 wl3501_get_from_wla(this, ptr, &next, sizeof(next));
345 this->tx_buffer_tail = ptr;
346 ptr = next;
347 }
348}
349
350static int wl3501_esbq_req_test(struct wl3501_card *this)
351{
a2fb0ad3 352 u8 tmp = 0;
1da177e4
LT		 353
354 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
355 return tmp & 0x80;
356}
357
358static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
359{
360 u16 tmp = 0;
361
362 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
363 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
364 this->esbq_req_head += 4;
365 if (this->esbq_req_head >= this->esbq_req_end)
366 this->esbq_req_head = this->esbq_req_start;
367}
368
369static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
370{
371 int rc = -EIO;
372
373 if (wl3501_esbq_req_test(this)) {
374 u16 ptr = wl3501_get_tx_buffer(this, sig_size);
375 if (ptr) {
376 wl3501_set_to_wla(this, ptr, sig, sig_size);
377 wl3501_esbq_req(this, &ptr);
378 rc = 0;
379 }
380 }
381 return rc;
382}
383
384static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
385 void *bf, int size)
386{
387 struct wl3501_get_req sig = {
388 .sig_id = WL3501_SIG_GET_REQ,
389 .mib_attrib = index,
390 };
391 unsigned long flags;
392 int rc = -EIO;
393
394 spin_lock_irqsave(&this->lock, flags);
395 if (wl3501_esbq_req_test(this)) {
396 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
397 if (ptr) {
398 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
399 wl3501_esbq_req(this, &ptr);
400 this->sig_get_confirm.mib_status = 255;
401 spin_unlock_irqrestore(&this->lock, flags);
402 rc = wait_event_interruptible(this->wait,
403 this->sig_get_confirm.mib_status != 255);
404 if (!rc)
405 memcpy(bf, this->sig_get_confirm.mib_value,
406 size);
407 goto out;
408 }
409 }
410 spin_unlock_irqrestore(&this->lock, flags);
411out:
412 return rc;
413}
414
415static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
416{
417 struct wl3501_pwr_mgmt_req sig = {
418 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
419 .pwr_save = suspend,
420 .wake_up = !suspend,
421 .receive_dtims = 10,
422 };
423 unsigned long flags;
424 int rc = -EIO;
425
426 spin_lock_irqsave(&this->lock, flags);
427 if (wl3501_esbq_req_test(this)) {
428 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
429 if (ptr) {
430 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
431 wl3501_esbq_req(this, &ptr);
432 this->sig_pwr_mgmt_confirm.status = 255;
433 spin_unlock_irqrestore(&this->lock, flags);
434 rc = wait_event_interruptible(this->wait,
435 this->sig_pwr_mgmt_confirm.status != 255);
c94c93da 436 printk(KERN_INFO "%s: %s status=%d\n", __func__,
1da177e4
LT		 437 suspend ? "suspend" : "resume",
438 this->sig_pwr_mgmt_confirm.status);
439 goto out;
440 }
441 }
442 spin_unlock_irqrestore(&this->lock, flags);
443out:
444 return rc;
445}
446
447/**
448 * wl3501_send_pkt - Send a packet.
449 * @this - card
450 *
451 * Send a packet.
452 *
453 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
454 * data[6] - data[11] is Src MAC Addr)
455 * Ref: IEEE 802.11
456 */
457static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
458{
459 u16 bf, sig_bf, next, tmplen, pktlen;
460 struct wl3501_md_req sig = {
461 .sig_id = WL3501_SIG_MD_REQ,
462 };
463 u8 *pdata = (char *)data;
464 int rc = -EIO;
465
466 if (wl3501_esbq_req_test(this)) {
467 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
468 rc = -ENOMEM;
469 if (!sig_bf) /* No free buffer available */
470 goto out;
471 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
472 if (!bf) {
473 /* No free buffer available */
474 wl3501_free_tx_buffer(this, sig_bf);
475 goto out;
476 }
477 rc = 0;
478 memcpy(&sig.daddr[0], pdata, 12);
479 pktlen = len - 12;
480 pdata += 12;
481 sig.data = bf;
482 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
483 u8 addr4[ETH_ALEN] = {
484 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
485 };
486
487 wl3501_set_to_wla(this, bf + 2 +
488 offsetof(struct wl3501_tx_hdr, addr4),
489 addr4, sizeof(addr4));
490 sig.size = pktlen + 24 + 4 + 6;
491 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
492 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
493 pktlen -= tmplen;
494 } else {
495 tmplen = pktlen;
496 pktlen = 0;
497 }
498 wl3501_set_to_wla(this,
499 bf + 2 + sizeof(struct wl3501_tx_hdr),
500 pdata, tmplen);
501 pdata += tmplen;
502 wl3501_get_from_wla(this, bf, &next, sizeof(next));
503 bf = next;
504 } else {
505 sig.size = pktlen + 24 + 4 - 2;
506 pdata += 2;
507 pktlen -= 2;
508 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
509 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
510 pktlen -= tmplen;
511 } else {
512 tmplen = pktlen;
513 pktlen = 0;
514 }
515 wl3501_set_to_wla(this, bf + 2 +
516 offsetof(struct wl3501_tx_hdr, addr4),
517 pdata, tmplen);
518 pdata += tmplen;
519 wl3501_get_from_wla(this, bf, &next, sizeof(next));
520 bf = next;
521 }
522 while (pktlen > 0) {
523 if (pktlen > 254) {
524 tmplen = 254;
525 pktlen -= 254;
526 } else {
527 tmplen = pktlen;
528 pktlen = 0;
529 }
530 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
531 pdata += tmplen;
532 wl3501_get_from_wla(this, bf, &next, sizeof(next));
533 bf = next;
534 }
535 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
536 wl3501_esbq_req(this, &sig_bf);
537 }
538out:
539 return rc;
540}
541
542static int wl3501_mgmt_resync(struct wl3501_card *this)
543{
544 struct wl3501_resync_req sig = {
545 .sig_id = WL3501_SIG_RESYNC_REQ,
546 };
547
548 return wl3501_esbq_exec(this, &sig, sizeof(sig));
549}
550
551static inline int wl3501_fw_bss_type(struct wl3501_card *this)
552{
553 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
554 WL3501_NET_TYPE_ADHOC;
555}
556
557static inline int wl3501_fw_cap_info(struct wl3501_card *this)
558{
559 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
560 WL3501_MGMT_CAPABILITY_IBSS;
561}
562
563static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
564{
565 struct wl3501_scan_req sig = {
566 .sig_id = WL3501_SIG_SCAN_REQ,
567 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
568 .probe_delay = 0x10,
569 .min_chan_time = chan_time,
570 .max_chan_time = chan_time,
571 .bss_type = wl3501_fw_bss_type(this),
572 };
573
574 this->bss_cnt = this->join_sta_bss = 0;
575 return wl3501_esbq_exec(this, &sig, sizeof(sig));
576}
577
578static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
579{
580 struct wl3501_join_req sig = {
581 .sig_id = WL3501_SIG_JOIN_REQ,
582 .timeout = 10,
583 .ds_pset = {
584 .el = {
585 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
586 .len = 1,
587 },
588 .chan = this->chan,
589 },
590 };
591
592 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
593 return wl3501_esbq_exec(this, &sig, sizeof(sig));
594}
595
596static int wl3501_mgmt_start(struct wl3501_card *this)
597{
598 struct wl3501_start_req sig = {
599 .sig_id = WL3501_SIG_START_REQ,
600 .beacon_period = 400,
601 .dtim_period = 1,
602 .ds_pset = {
603 .el = {
604 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
605 .len = 1,
606 },
607 .chan = this->chan,
608 },
609 .bss_basic_rset = {
610 .el = {
611 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
612 .len = 2,
613 },
614 .data_rate_labels = {
615 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
616 IW_MGMT_RATE_LABEL_1MBIT,
617 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
618 IW_MGMT_RATE_LABEL_2MBIT,
619 },
620 },
621 .operational_rset = {
622 .el = {
623 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
624 .len = 2,
625 },
626 .data_rate_labels = {
627 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
628 IW_MGMT_RATE_LABEL_1MBIT,
629 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
630 IW_MGMT_RATE_LABEL_2MBIT,
631 },
632 },
633 .ibss_pset = {
634 .el = {
635 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
636 .len = 2,
637 },
638 .atim_window = 10,
639 },
640 .bss_type = wl3501_fw_bss_type(this),
641 .cap_info = wl3501_fw_cap_info(this),
642 };
643
644 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
645 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
646 return wl3501_esbq_exec(this, &sig, sizeof(sig));
647}
648
649static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
650{
651 u16 i = 0;
652 int matchflag = 0;
653 struct wl3501_scan_confirm sig;
654
2caff147 655 pr_debug("entry");
1da177e4
LT		 656 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
657 if (sig.status == WL3501_STATUS_SUCCESS) {
2caff147 658 pr_debug("success");
1da177e4
LT		 659 if ((this->net_type == IW_MODE_INFRA &&
660 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
661 (this->net_type == IW_MODE_ADHOC &&
662 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
663 this->net_type == IW_MODE_AUTO) {
664 if (!this->essid.el.len)
665 matchflag = 1;
666 else if (this->essid.el.len == 3 &&
667 !memcmp(this->essid.essid, "ANY", 3))
668 matchflag = 1;
669 else if (this->essid.el.len != sig.ssid.el.len)
670 matchflag = 0;
671 else if (memcmp(this->essid.essid, sig.ssid.essid,
672 this->essid.el.len))
673 matchflag = 0;
674 else
675 matchflag = 1;
676 if (matchflag) {
677 for (i = 0; i < this->bss_cnt; i++) {
678 if (!memcmp(this->bss_set[i].bssid,
679 sig.bssid, ETH_ALEN)) {
680 matchflag = 0;
681 break;
682 }
683 }
684 }
685 if (matchflag && (i < 20)) {
686 memcpy(&this->bss_set[i].beacon_period,
687 &sig.beacon_period, 73);
688 this->bss_cnt++;
689 this->rssi = sig.rssi;
690 }
691 }
692 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
2caff147 693 pr_debug("timeout");
1da177e4
LT		 694 this->join_sta_bss = 0;
695 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
696 if (!wl3501_mgmt_join(this, i))
697 break;
698 this->join_sta_bss = i;
699 if (this->join_sta_bss == this->bss_cnt) {
700 if (this->net_type == IW_MODE_INFRA)
701 wl3501_mgmt_scan(this, 100);
702 else {
703 this->adhoc_times++;
704 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
705 wl3501_mgmt_start(this);
706 else
707 wl3501_mgmt_scan(this, 100);
708 }
709 }
710 }
711}
712
713/**
714 * wl3501_block_interrupt - Mask interrupt from SUTRO
715 * @this - card
716 *
717 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
718 * Return: 1 if interrupt is originally enabled
719 */
720static int wl3501_block_interrupt(struct wl3501_card *this)
721{
722 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
723 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
724 WL3501_GCR_ENECINT));
725
726 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
727 return old & WL3501_GCR_ENECINT;
728}
729
730/**
731 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
732 * @this - card
733 *
734 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
735 * Return: 1 if interrupt is originally enabled
736 */
737static int wl3501_unblock_interrupt(struct wl3501_card *this)
738{
739 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
740 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
741 WL3501_GCR_ENECINT;
742
743 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
744 return old & WL3501_GCR_ENECINT;
745}
746
747/**
748 * wl3501_receive - Receive data from Receive Queue.
749 *
750 * Receive data from Receive Queue.
751 *
752 * @this: card
753 * @bf: address of host
754 * @size: size of buffer.
755 */
756static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
757{
758 u16 next_addr, next_addr1;
759 u8 *data = bf + 12;
760
761 size -= 12;
762 wl3501_get_from_wla(this, this->start_seg + 2,
763 &next_addr, sizeof(next_addr));
764 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
765 wl3501_get_from_wla(this,
766 this->start_seg +
767 sizeof(struct wl3501_rx_hdr), data,
768 WL3501_BLKSZ -
769 sizeof(struct wl3501_rx_hdr));
770 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
771 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
772 } else {
773 wl3501_get_from_wla(this,
774 this->start_seg +
775 sizeof(struct wl3501_rx_hdr),
776 data, size);
777 size = 0;
778 }
779 while (size > 0) {
780 if (size > WL3501_BLKSZ - 5) {
781 wl3501_get_from_wla(this, next_addr + 5, data,
782 WL3501_BLKSZ - 5);
783 size -= WL3501_BLKSZ - 5;
784 data += WL3501_BLKSZ - 5;
785 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
786 sizeof(next_addr1));
787 next_addr = next_addr1;
788 } else {
789 wl3501_get_from_wla(this, next_addr + 5, data, size);
790 size = 0;
791 }
792 }
793 return 0;
794}
795
796static void wl3501_esbq_req_free(struct wl3501_card *this)
797{
798 u8 tmp;
799 u16 addr;
800
801 if (this->esbq_req_head == this->esbq_req_tail)
802 goto out;
803 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
804 if (!(tmp & 0x80))
805 goto out;
806 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
807 wl3501_free_tx_buffer(this, addr);
808 this->esbq_req_tail += 4;
809 if (this->esbq_req_tail >= this->esbq_req_end)
810 this->esbq_req_tail = this->esbq_req_start;
811out:
812 return;
813}
814
815static int wl3501_esbq_confirm(struct wl3501_card *this)
816{
817 u8 tmp;
818
819 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
820 return tmp & 0x80;
821}
822
823static void wl3501_online(struct net_device *dev)
824{
6dbc9c89 825 struct wl3501_card *this = netdev_priv(dev);
1da177e4 826
e174961c
JB		 827 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
828 dev->name, this->bssid);
1da177e4
LT		 829 netif_wake_queue(dev);
830}
831
832static void wl3501_esbq_confirm_done(struct wl3501_card *this)
833{
834 u8 tmp = 0;
835
836 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
837 this->esbq_confirm += 4;
838 if (this->esbq_confirm >= this->esbq_confirm_end)
839 this->esbq_confirm = this->esbq_confirm_start;
840}
841
842static int wl3501_mgmt_auth(struct wl3501_card *this)
843{
844 struct wl3501_auth_req sig = {
845 .sig_id = WL3501_SIG_AUTH_REQ,
846 .type = WL3501_SYS_TYPE_OPEN,
847 .timeout = 1000,
848 };
849
2caff147 850 pr_debug("entry");
1da177e4
LT		 851 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
852 return wl3501_esbq_exec(this, &sig, sizeof(sig));
853}
854
855static int wl3501_mgmt_association(struct wl3501_card *this)
856{
857 struct wl3501_assoc_req sig = {
858 .sig_id = WL3501_SIG_ASSOC_REQ,
859 .timeout = 1000,
860 .listen_interval = 5,
861 .cap_info = this->cap_info,
862 };
863
2caff147 864 pr_debug("entry");
1da177e4
LT		 865 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
866 return wl3501_esbq_exec(this, &sig, sizeof(sig));
867}
868
869static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
870{
6dbc9c89 871 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 872 struct wl3501_join_confirm sig;
873
2caff147 874 pr_debug("entry");
1da177e4
LT		 875 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
876 if (sig.status == WL3501_STATUS_SUCCESS) {
877 if (this->net_type == IW_MODE_INFRA) {
878 if (this->join_sta_bss < this->bss_cnt) {
879 const int i = this->join_sta_bss;
880 memcpy(this->bssid,
881 this->bss_set[i].bssid, ETH_ALEN);
882 this->chan = this->bss_set[i].ds_pset.chan;
883 iw_copy_mgmt_info_element(&this->keep_essid.el,
884 &this->bss_set[i].ssid.el);
885 wl3501_mgmt_auth(this);
886 }
887 } else {
888 const int i = this->join_sta_bss;
889
890 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
891 this->chan = this->bss_set[i].ds_pset.chan;
892 iw_copy_mgmt_info_element(&this->keep_essid.el,
893 &this->bss_set[i].ssid.el);
894 wl3501_online(dev);
895 }
896 } else {
897 int i;
898 this->join_sta_bss++;
899 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
900 if (!wl3501_mgmt_join(this, i))
901 break;
902 this->join_sta_bss = i;
903 if (this->join_sta_bss == this->bss_cnt) {
904 if (this->net_type == IW_MODE_INFRA)
905 wl3501_mgmt_scan(this, 100);
906 else {
907 this->adhoc_times++;
908 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
909 wl3501_mgmt_start(this);
910 else
911 wl3501_mgmt_scan(this, 100);
912 }
913 }
914 }
915}
916
917static inline void wl3501_alarm_interrupt(struct net_device *dev,
918 struct wl3501_card *this)
919{
920 if (this->net_type == IW_MODE_INFRA) {
921 printk(KERN_INFO "Wireless LAN offline\n");
922 netif_stop_queue(dev);
923 wl3501_mgmt_resync(this);
924 }
925}
926
927static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
928 struct wl3501_card *this,
929 u16 addr)
930{
931 struct wl3501_md_confirm sig;
932
2caff147 933 pr_debug("entry");
1da177e4
LT		 934 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
935 wl3501_free_tx_buffer(this, sig.data);
936 if (netif_queue_stopped(dev))
937 netif_wake_queue(dev);
938}
939
940static inline void wl3501_md_ind_interrupt(struct net_device *dev,
941 struct wl3501_card *this, u16 addr)
942{
943 struct wl3501_md_ind sig;
944 struct sk_buff *skb;
945 u8 rssi, addr4[ETH_ALEN];
946 u16 pkt_len;
947
948 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
949 this->start_seg = sig.data;
950 wl3501_get_from_wla(this,
951 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
952 &rssi, sizeof(rssi));
953 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
954
955 wl3501_get_from_wla(this,
956 sig.data +
957 offsetof(struct wl3501_rx_hdr, addr4),
958 &addr4, sizeof(addr4));
959 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
960 addr4[2] == 0x03 && addr4[4] == 0x00)) {
961 printk(KERN_INFO "Insupported packet type!\n");
962 return;
963 }
964 pkt_len = sig.size + 12 - 24 - 4 - 6;
965
966 skb = dev_alloc_skb(pkt_len + 5);
967
968 if (!skb) {
969 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
970 dev->name, pkt_len);
4255d411 971 dev->stats.rx_dropped++;
1da177e4
LT		 972 } else {
973 skb->dev = dev;
974 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
8c7b7faa 975 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
1da177e4
LT		 976 wl3501_receive(this, skb->data, pkt_len);
977 skb_put(skb, pkt_len);
978 skb->protocol = eth_type_trans(skb, dev);
4255d411
SH		 979 dev->stats.rx_packets++;
980 dev->stats.rx_bytes += skb->len;
1da177e4
LT		 981 netif_rx(skb);
982 }
983}
984
985static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
986 u16 addr, void *sig, int size)
987{
2caff147 988 pr_debug("entry");
1da177e4
LT		 989 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
990 sizeof(this->sig_get_confirm));
991 wake_up(&this->wait);
992}
993
994static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
995 struct wl3501_card *this,
996 u16 addr)
997{
998 struct wl3501_start_confirm sig;
999
2caff147 1000 pr_debug("entry");
1da177e4
LT		 1001 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1002 if (sig.status == WL3501_STATUS_SUCCESS)
1003 netif_wake_queue(dev);
1004}
1005
1006static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1007 u16 addr)
1008{
6dbc9c89 1009 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1010 struct wl3501_assoc_confirm sig;
1011
2caff147 1012 pr_debug("entry");
1da177e4
LT		 1013 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1014
1015 if (sig.status == WL3501_STATUS_SUCCESS)
1016 wl3501_online(dev);
1017}
1018
1019static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1020 u16 addr)
1021{
1022 struct wl3501_auth_confirm sig;
1023
2caff147 1024 pr_debug("entry");
1da177e4
LT		 1025 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1026
1027 if (sig.status == WL3501_STATUS_SUCCESS)
1028 wl3501_mgmt_association(this);
1029 else
1030 wl3501_mgmt_resync(this);
1031}
1032
1033static inline void wl3501_rx_interrupt(struct net_device *dev)
1034{
1035 int morepkts;
1036 u16 addr;
1037 u8 sig_id;
6dbc9c89 1038 struct wl3501_card *this = netdev_priv(dev);
1da177e4 1039
2caff147 1040 pr_debug("entry");
1da177e4
LT		 1041loop:
1042 morepkts = 0;
1043 if (!wl3501_esbq_confirm(this))
1044 goto free;
1045 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1046 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1047
1048 switch (sig_id) {
1049 case WL3501_SIG_DEAUTH_IND:
1050 case WL3501_SIG_DISASSOC_IND:
1051 case WL3501_SIG_ALARM:
1052 wl3501_alarm_interrupt(dev, this);
1053 break;
1054 case WL3501_SIG_MD_CONFIRM:
1055 wl3501_md_confirm_interrupt(dev, this, addr);
1056 break;
1057 case WL3501_SIG_MD_IND:
1058 wl3501_md_ind_interrupt(dev, this, addr);
1059 break;
1060 case WL3501_SIG_GET_CONFIRM:
1061 wl3501_get_confirm_interrupt(this, addr,
1062 &this->sig_get_confirm,
1063 sizeof(this->sig_get_confirm));
1064 break;
1065 case WL3501_SIG_PWR_MGMT_CONFIRM:
1066 wl3501_get_confirm_interrupt(this, addr,
1067 &this->sig_pwr_mgmt_confirm,
1068 sizeof(this->sig_pwr_mgmt_confirm));
1069 break;
1070 case WL3501_SIG_START_CONFIRM:
1071 wl3501_start_confirm_interrupt(dev, this, addr);
1072 break;
1073 case WL3501_SIG_SCAN_CONFIRM:
1074 wl3501_mgmt_scan_confirm(this, addr);
1075 break;
1076 case WL3501_SIG_JOIN_CONFIRM:
1077 wl3501_mgmt_join_confirm(dev, addr);
1078 break;
1079 case WL3501_SIG_ASSOC_CONFIRM:
1080 wl3501_assoc_confirm_interrupt(dev, addr);
1081 break;
1082 case WL3501_SIG_AUTH_CONFIRM:
1083 wl3501_auth_confirm_interrupt(this, addr);
1084 break;
1085 case WL3501_SIG_RESYNC_CONFIRM:
1086 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1087 break;
1088 }
1089 wl3501_esbq_confirm_done(this);
1090 morepkts = 1;
1091 /* free request if necessary */
1092free:
1093 wl3501_esbq_req_free(this);
1094 if (morepkts)
1095 goto loop;
1096}
1097
1098static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1099{
1100 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1101}
1102
1103/**
1104 * wl3501_interrupt - Hardware interrupt from card.
1105 * @irq - Interrupt number
1106 * @dev_id - net_device
1da177e4
LT		 1107 *
1108 * We must acknowledge the interrupt as soon as possible, and block the
1109 * interrupt from the same card immediately to prevent re-entry.
1110 *
1111 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1112 * On the other hand, to prevent SUTRO from malfunctioning, we must
1113 * unlock the SUTRO as soon as possible.
1114 */
7d12e780 1115static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1da177e4 1116{
c31f28e7 1117 struct net_device *dev = dev_id;
1da177e4 1118 struct wl3501_card *this;
1da177e4 1119
c31f28e7 1120 this = netdev_priv(dev);
1da177e4
LT		 1121 spin_lock(&this->lock);
1122 wl3501_ack_interrupt(this);
1123 wl3501_block_interrupt(this);
1124 wl3501_rx_interrupt(dev);
1125 wl3501_unblock_interrupt(this);
1126 spin_unlock(&this->lock);
c31f28e7
JG		 1127
1128 return IRQ_HANDLED;
1da177e4
LT		 1129}
1130
1131static int wl3501_reset_board(struct wl3501_card *this)
1132{
1133 u8 tmp = 0;
1134 int i, rc = 0;
1135
1136 /* Coreset */
1137 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1138 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1139 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1140
1141 /* Reset SRAM 0x480 to zero */
1142 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1143
1144 /* Start up */
1145 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1146
1147 WL3501_NOPLOOP(1024 * 50);
1148
1149 wl3501_unblock_interrupt(this); /* acme: was commented */
1150
1151 /* Polling Self_Test_Status */
1152 for (i = 0; i < 10000; i++) {
1153 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1154
1155 if (tmp == 'W') {
1156 /* firmware complete all test successfully */
1157 tmp = 'A';
1158 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1159 goto out;
1160 }
1161 WL3501_NOPLOOP(10);
1162 }
c94c93da 1163 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1da177e4
LT		 1164 rc = -ENODEV;
1165out:
1166 return rc;
1167}
1168
1169static int wl3501_init_firmware(struct wl3501_card *this)
1170{
1171 u16 ptr, next;
1172 int rc = wl3501_reset_board(this);
1173
1174 if (rc)
1175 goto fail;
1176 this->card_name[0] = '\0';
1177 wl3501_get_from_wla(this, 0x1a00,
1178 this->card_name, sizeof(this->card_name));
1179 this->card_name[sizeof(this->card_name) - 1] = '\0';
1180 this->firmware_date[0] = '\0';
1181 wl3501_get_from_wla(this, 0x1a40,
1182 this->firmware_date, sizeof(this->firmware_date));
1183 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1184 /* Switch to SRAM Page 0 */
1185 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1186 /* Read parameter from card */
1187 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1188 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1189 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1190 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1191 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1192 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1193 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1194 this->esbq_req_end += this->esbq_req_start;
1195 this->esbq_confirm = this->esbq_confirm_start;
1196 this->esbq_confirm_end += this->esbq_confirm_start;
1197 /* Initial Tx Buffer */
1198 this->tx_buffer_cnt = 1;
1199 ptr = this->tx_buffer_head;
1200 next = ptr + WL3501_BLKSZ;
1201 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1202 this->tx_buffer_cnt++;
1203 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1204 ptr = next;
1205 next = ptr + WL3501_BLKSZ;
1206 }
1207 rc = 0;
1208 next = 0;
1209 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1210 this->tx_buffer_tail = ptr;
1211out:
1212 return rc;
1213fail:
c94c93da 1214 printk(KERN_WARNING "%s: failed!\n", __func__);
1da177e4
LT		 1215 goto out;
1216}
1217
1218static int wl3501_close(struct net_device *dev)
1219{
6dbc9c89 1220 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1221 int rc = -ENODEV;
1222 unsigned long flags;
fba395ee 1223 struct pcmcia_device *link;
fd238232 1224 link = this->p_dev;
1da177e4
LT		 1225
1226 spin_lock_irqsave(&this->lock, flags);
1da177e4
LT		 1227 link->open--;
1228
1229 /* Stop wl3501_hard_start_xmit() from now on */
1230 netif_stop_queue(dev);
1231 wl3501_ack_interrupt(this);
1232
1233 /* Mask interrupts from the SUTRO */
1234 wl3501_block_interrupt(this);
1235
1236 rc = 0;
1237 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1da177e4
LT		 1238 spin_unlock_irqrestore(&this->lock, flags);
1239 return rc;
1240}
1241
1242/**
1243 * wl3501_reset - Reset the SUTRO.
1244 * @dev - network device
1245 *
1246 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1247 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1248 * is running. It seems to be dangerous.
1249 */
1250static int wl3501_reset(struct net_device *dev)
1251{
6dbc9c89 1252 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1253 int rc = -ENODEV;
1254
1255 wl3501_block_interrupt(this);
1256
1257 if (wl3501_init_firmware(this)) {
1258 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1259 dev->name);
1260 /* Free IRQ, and mark IRQ as unused */
1261 free_irq(dev->irq, dev);
1262 goto out;
1263 }
1264
1265 /*
1266 * Queue has to be started only when the Card is Started
1267 */
1268 netif_stop_queue(dev);
1269 this->adhoc_times = 0;
1270 wl3501_ack_interrupt(this);
1271 wl3501_unblock_interrupt(this);
1272 wl3501_mgmt_scan(this, 100);
2caff147 1273 pr_debug("%s: device reset", dev->name);
1da177e4
LT		 1274 rc = 0;
1275out:
1276 return rc;
1277}
1278
1279static void wl3501_tx_timeout(struct net_device *dev)
1280{
6dbc9c89 1281 struct wl3501_card *this = netdev_priv(dev);
4255d411 1282 struct net_device_stats *stats = &dev->stats;
1da177e4
LT		 1283 unsigned long flags;
1284 int rc;
1285
1286 stats->tx_errors++;
1287 spin_lock_irqsave(&this->lock, flags);
1288 rc = wl3501_reset(dev);
1289 spin_unlock_irqrestore(&this->lock, flags);
1290 if (rc)
1291 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1292 dev->name, rc);
1293 else {
1ae5dc34 1294 dev->trans_start = jiffies; /* prevent tx timeout */
1da177e4
LT		 1295 netif_wake_queue(dev);
1296 }
1297}
1298
1299/*
1300 * Return : 0 - OK
1301 * 1 - Could not transmit (dev_queue_xmit will queue it)
1302 * and try to sent it later
1303 */
d0cf9c0d
SH		 1304static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1305 struct net_device *dev)
1da177e4
LT		 1306{
1307 int enabled, rc;
6dbc9c89 1308 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1309 unsigned long flags;
1310
1311 spin_lock_irqsave(&this->lock, flags);
1312 enabled = wl3501_block_interrupt(this);
1da177e4
LT		 1313 rc = wl3501_send_pkt(this, skb->data, skb->len);
1314 if (enabled)
1315 wl3501_unblock_interrupt(this);
1316 if (rc) {
4255d411 1317 ++dev->stats.tx_dropped;
1da177e4
LT		 1318 netif_stop_queue(dev);
1319 } else {
4255d411
SH		 1320 ++dev->stats.tx_packets;
1321 dev->stats.tx_bytes += skb->len;
1da177e4
LT		 1322 kfree_skb(skb);
1323
1324 if (this->tx_buffer_cnt < 2)
1325 netif_stop_queue(dev);
1326 }
1327 spin_unlock_irqrestore(&this->lock, flags);
ec634fe3 1328 return NETDEV_TX_OK;
1da177e4
LT		 1329}
1330
1331static int wl3501_open(struct net_device *dev)
1332{
1333 int rc = -ENODEV;
6dbc9c89 1334 struct wl3501_card *this = netdev_priv(dev);
1da177e4 1335 unsigned long flags;
fba395ee 1336 struct pcmcia_device *link;
fd238232 1337 link = this->p_dev;
1da177e4
LT		 1338
1339 spin_lock_irqsave(&this->lock, flags);
9940ec36 1340 if (!pcmcia_dev_present(link))
1da177e4
LT		 1341 goto out;
1342 netif_device_attach(dev);
1343 link->open++;
1344
1345 /* Initial WL3501 firmware */
2caff147 1346 pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1da177e4
LT		 1347 if (wl3501_init_firmware(this))
1348 goto fail;
1349 /* Initial device variables */
1350 this->adhoc_times = 0;
1351 /* Acknowledge Interrupt, for cleaning last state */
1352 wl3501_ack_interrupt(this);
1353
1354 /* Enable interrupt from card after all */
1355 wl3501_unblock_interrupt(this);
1356 wl3501_mgmt_scan(this, 100);
1357 rc = 0;
2caff147 1358 pr_debug("%s: WL3501 opened", dev->name);
1da177e4
LT		 1359 printk(KERN_INFO "%s: Card Name: %s\n"
1360 "%s: Firmware Date: %s\n",
1361 dev->name, this->card_name,
1362 dev->name, this->firmware_date);
1363out:
1364 spin_unlock_irqrestore(&this->lock, flags);
1365 return rc;
1366fail:
1367 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1368 goto out;
1369}
1370
ff1d2767 1371static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1da177e4 1372{
6dbc9c89 1373 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1374 struct iw_statistics *wstats = &this->wstats;
1375 u32 value; /* size checked: it is u32 */
1376
1377 memset(wstats, 0, sizeof(*wstats));
1378 wstats->status = netif_running(dev);
1379 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1380 &value, sizeof(value)))
1381 wstats->discard.code += value;
1382 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1383 &value, sizeof(value)))
1384 wstats->discard.code += value;
1385 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1386 &value, sizeof(value)))
1387 wstats->discard.code += value;
1388 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1389 &value, sizeof(value)))
1390 wstats->discard.retries = value;
1391 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1392 &value, sizeof(value)))
1393 wstats->discard.misc += value;
1394 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1395 &value, sizeof(value)))
1396 wstats->discard.misc += value;
1397 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1398 &value, sizeof(value)))
1399 wstats->discard.misc += value;
1400 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1401 &value, sizeof(value)))
1402 wstats->discard.misc += value;
1403 return wstats;
1404}
1405
1406static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1407{
ac8b4228 1408 strlcpy(info->driver, "wl3501_cs", sizeof(info->driver));
1da177e4
LT		 1409}
1410
7282d491 1411static const struct ethtool_ops ops = {
1da177e4
LT		 1412 .get_drvinfo = wl3501_get_drvinfo
1413};
1414
1415/**
1416 * wl3501_detach - deletes a driver "instance"
1417 * @link - FILL_IN
1418 *
1419 * This deletes a driver "instance". The device is de-registered with Card
1420 * Services. If it has been released, all local data structures are freed.
1421 * Otherwise, the structures will be freed when the device is released.
1422 */
fba395ee 1423static void wl3501_detach(struct pcmcia_device *link)
1da177e4 1424{
cc3b4866 1425 struct net_device *dev = link->priv;
1da177e4 1426
1da177e4
LT		 1427 /* If the device is currently configured and active, we won't actually
1428 * delete it yet. Instead, it is marked so that when the release()
1429 * function is called, that will trigger a proper detach(). */
1430
e2d40963
DB		 1431 while (link->open > 0)
1432 wl3501_close(dev);
1da177e4 1433
e2d40963
DB		 1434 netif_device_detach(dev);
1435 wl3501_release(link);
1da177e4 1436
c7c2fa07
DB		 1437 unregister_netdev(dev);
1438
1da177e4
LT		 1439 if (link->priv)
1440 free_netdev(link->priv);
1da177e4
LT		 1441}
1442
1443static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1444 union iwreq_data *wrqu, char *extra)
1445{
1446 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1447 return 0;
1448}
1449
1450static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1451 union iwreq_data *wrqu, char *extra)
1452{
6dbc9c89 1453 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1454 int channel = wrqu->freq.m;
1455 int rc = -EINVAL;
1456
1457 if (iw_valid_channel(this->reg_domain, channel)) {
1458 this->chan = channel;
1459 rc = wl3501_reset(dev);
1460 }
1461 return rc;
1462}
1463
1464static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1465 union iwreq_data *wrqu, char *extra)
1466{
6dbc9c89 1467 struct wl3501_card *this = netdev_priv(dev);
1da177e4 1468
9ee677c2 1469 wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000;
1da177e4
LT		 1470 wrqu->freq.e = 1;
1471 return 0;
1472}
1473
1474static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1475 union iwreq_data *wrqu, char *extra)
1476{
1477 int rc = -EINVAL;
1478
1479 if (wrqu->mode == IW_MODE_INFRA ||
1480 wrqu->mode == IW_MODE_ADHOC ||
1481 wrqu->mode == IW_MODE_AUTO) {
6dbc9c89 1482 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1483
1484 this->net_type = wrqu->mode;
1485 rc = wl3501_reset(dev);
1486 }
1487 return rc;
1488}
1489
1490static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1491 union iwreq_data *wrqu, char *extra)
1492{
6dbc9c89 1493 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1494
1495 wrqu->mode = this->net_type;
1496 return 0;
1497}
1498
1499static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1500 union iwreq_data *wrqu, char *extra)
1501{
6dbc9c89 1502 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1503
1504 wrqu->sens.value = this->rssi;
1505 wrqu->sens.disabled = !wrqu->sens.value;
1506 wrqu->sens.fixed = 1;
1507 return 0;
1508}
1509
1510static int wl3501_get_range(struct net_device *dev,
1511 struct iw_request_info *info,
1512 union iwreq_data *wrqu, char *extra)
1513{
1514 struct iw_range *range = (struct iw_range *)extra;
1515
1516 /* Set the length (very important for backward compatibility) */
1517 wrqu->data.length = sizeof(*range);
1518
1519 /* Set all the info we don't care or don't know about to zero */
1520 memset(range, 0, sizeof(*range));
1521
1522 /* Set the Wireless Extension versions */
1523 range->we_version_compiled = WIRELESS_EXT;
1524 range->we_version_source = 1;
1525 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1526 /* FIXME: study the code to fill in more fields... */
1527 return 0;
1528}
1529
1530static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1531 union iwreq_data *wrqu, char *extra)
1532{
6dbc9c89 1533 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1534 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
1535 int rc = -EINVAL;
1536
1537 /* FIXME: we support other ARPHRDs...*/
1538 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1539 goto out;
1540 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
1541 /* FIXME: rescan? */
1542 } else
1543 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1544 /* FIXME: rescan? deassoc & scan? */
1545 rc = 0;
1546out:
1547 return rc;
1548}
1549
1550static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1551 union iwreq_data *wrqu, char *extra)
1552{
6dbc9c89 1553 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1554
1555 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1556 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1557 return 0;
1558}
1559
1560static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1561 union iwreq_data *wrqu, char *extra)
1562{
1563 /*
1564 * FIXME: trigger scanning with a reset, yes, I'm lazy
1565 */
1566 return wl3501_reset(dev);
1567}
1568
1569static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1570 union iwreq_data *wrqu, char *extra)
1571{
6dbc9c89 1572 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1573 int i;
1574 char *current_ev = extra;
1575 struct iw_event iwe;
1576
1577 for (i = 0; i < this->bss_cnt; ++i) {
1578 iwe.cmd = SIOCGIWAP;
1579 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1580 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
ccc58057 1581 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1582 extra + IW_SCAN_MAX_DATA,
1583 &iwe, IW_EV_ADDR_LEN);
1584 iwe.cmd = SIOCGIWESSID;
1585 iwe.u.data.flags = 1;
1586 iwe.u.data.length = this->bss_set[i].ssid.el.len;
ccc58057 1587 current_ev = iwe_stream_add_point(info, current_ev,
1da177e4
LT		 1588 extra + IW_SCAN_MAX_DATA,
1589 &iwe,
1590 this->bss_set[i].ssid.essid);
1591 iwe.cmd = SIOCGIWMODE;
1592 iwe.u.mode = this->bss_set[i].bss_type;
ccc58057 1593 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1594 extra + IW_SCAN_MAX_DATA,
1595 &iwe, IW_EV_UINT_LEN);
1596 iwe.cmd = SIOCGIWFREQ;
1597 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1598 iwe.u.freq.e = 0;
ccc58057 1599 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1600 extra + IW_SCAN_MAX_DATA,
1601 &iwe, IW_EV_FREQ_LEN);
1602 iwe.cmd = SIOCGIWENCODE;
1603 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1604 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1605 else
1606 iwe.u.data.flags = IW_ENCODE_DISABLED;
1607 iwe.u.data.length = 0;
ccc58057 1608 current_ev = iwe_stream_add_point(info, current_ev,
1da177e4
LT		 1609 extra + IW_SCAN_MAX_DATA,
1610 &iwe, NULL);
1611 }
1612 /* Length of data */
1613 wrqu->data.length = (current_ev - extra);
1614 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1615 return 0;
1616}
1617
1618static int wl3501_set_essid(struct net_device *dev,
1619 struct iw_request_info *info,
1620 union iwreq_data *wrqu, char *extra)
1621{
6dbc9c89 1622 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1623
1624 if (wrqu->data.flags) {
1625 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1626 &this->essid.el,
1627 extra, wrqu->data.length);
1628 } else { /* We accept any ESSID */
1629 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1630 &this->essid.el, "ANY", 3);
1631 }
1632 return wl3501_reset(dev);
1633}
1634
1635static int wl3501_get_essid(struct net_device *dev,
1636 struct iw_request_info *info,
1637 union iwreq_data *wrqu, char *extra)
1638{
6dbc9c89 1639 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1640 unsigned long flags;
1641
1642 spin_lock_irqsave(&this->lock, flags);
1643 wrqu->essid.flags = 1;
1644 wrqu->essid.length = this->essid.el.len;
1645 memcpy(extra, this->essid.essid, this->essid.el.len);
1646 spin_unlock_irqrestore(&this->lock, flags);
1647 return 0;
1648}
1649
1650static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1651 union iwreq_data *wrqu, char *extra)
1652{
6dbc9c89 1653 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1654
1655 if (wrqu->data.length > sizeof(this->nick))
1656 return -E2BIG;
1657 strlcpy(this->nick, extra, wrqu->data.length);
1658 return 0;
1659}
1660
1661static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1662 union iwreq_data *wrqu, char *extra)
1663{
6dbc9c89 1664 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1665
1666 strlcpy(extra, this->nick, 32);
1667 wrqu->data.length = strlen(extra);
1668 return 0;
1669}
1670
1671static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1672 union iwreq_data *wrqu, char *extra)
1673{
1674 /*
1675 * FIXME: have to see from where to get this info, perhaps this card
1676 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1677 * common with the Planet Access Points. -acme
1678 */
1679 wrqu->bitrate.value = 2000000;
1680 wrqu->bitrate.fixed = 1;
1681 return 0;
1682}
1683
1684static int wl3501_get_rts_threshold(struct net_device *dev,
1685 struct iw_request_info *info,
1686 union iwreq_data *wrqu, char *extra)
1687{
1688 u16 threshold; /* size checked: it is u16 */
6dbc9c89 1689 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1690 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1691 &threshold, sizeof(threshold));
1692 if (!rc) {
1693 wrqu->rts.value = threshold;
1694 wrqu->rts.disabled = threshold >= 2347;
1695 wrqu->rts.fixed = 1;
1696 }
1697 return rc;
1698}
1699
1700static int wl3501_get_frag_threshold(struct net_device *dev,
1701 struct iw_request_info *info,
1702 union iwreq_data *wrqu, char *extra)
1703{
1704 u16 threshold; /* size checked: it is u16 */
6dbc9c89 1705 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1706 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1707 &threshold, sizeof(threshold));
1708 if (!rc) {
1709 wrqu->frag.value = threshold;
1710 wrqu->frag.disabled = threshold >= 2346;
1711 wrqu->frag.fixed = 1;
1712 }
1713 return rc;
1714}
1715
1716static int wl3501_get_txpow(struct net_device *dev,
1717 struct iw_request_info *info,
1718 union iwreq_data *wrqu, char *extra)
1719{
1720 u16 txpow;
6dbc9c89 1721 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1722 int rc = wl3501_get_mib_value(this,
1723 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1724 &txpow, sizeof(txpow));
1725 if (!rc) {
1726 wrqu->txpower.value = txpow;
1727 wrqu->txpower.disabled = 0;
1728 /*
1729 * From the MIB values I think this can be configurable,
1730 * as it lists several tx power levels -acme
1731 */
1732 wrqu->txpower.fixed = 0;
1733 wrqu->txpower.flags = IW_TXPOW_MWATT;
1734 }
1735 return rc;
1736}
1737
1738static int wl3501_get_retry(struct net_device *dev,
1739 struct iw_request_info *info,
1740 union iwreq_data *wrqu, char *extra)
1741{
1742 u8 retry; /* size checked: it is u8 */
6dbc9c89 1743 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1744 int rc = wl3501_get_mib_value(this,
1745 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1746 &retry, sizeof(retry));
1747 if (rc)
1748 goto out;
de9621bc
JT		 1749 if (wrqu->retry.flags & IW_RETRY_LONG) {
1750 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1da177e4
LT		 1751 goto set_value;
1752 }
1753 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1754 &retry, sizeof(retry));
1755 if (rc)
1756 goto out;
de9621bc 1757 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1da177e4
LT		 1758set_value:
1759 wrqu->retry.value = retry;
1760 wrqu->retry.disabled = 0;
1761out:
1762 return rc;
1763}
1764
1765static int wl3501_get_encode(struct net_device *dev,
1766 struct iw_request_info *info,
1767 union iwreq_data *wrqu, char *extra)
1768{
1769 u8 implemented, restricted, keys[100], len_keys, tocopy;
6dbc9c89 1770 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1771 int rc = wl3501_get_mib_value(this,
1772 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1773 &implemented, sizeof(implemented));
1774 if (rc)
1775 goto out;
1776 if (!implemented) {
1777 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1778 goto out;
1779 }
1780 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1781 &restricted, sizeof(restricted));
1782 if (rc)
1783 goto out;
1784 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1785 IW_ENCODE_OPEN;
1786 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1787 &len_keys, sizeof(len_keys));
1788 if (rc)
1789 goto out;
1790 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1791 keys, len_keys);
1792 if (rc)
1793 goto out;
1794 tocopy = min_t(u8, len_keys, wrqu->encoding.length);
1795 tocopy = min_t(u8, tocopy, 100);
1796 wrqu->encoding.length = tocopy;
1da177e4
LT		 1797 memcpy(extra, keys, tocopy);
1798out:
1799 return rc;
1800}
1801
1802static int wl3501_get_power(struct net_device *dev,
1803 struct iw_request_info *info,
1804 union iwreq_data *wrqu, char *extra)
1805{
1806 u8 pwr_state;
6dbc9c89 1807 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1808 int rc = wl3501_get_mib_value(this,
1809 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1810 &pwr_state, sizeof(pwr_state));
1811 if (rc)
1812 goto out;
1813 wrqu->power.disabled = !pwr_state;
1814 wrqu->power.flags = IW_POWER_ON;
1815out:
1816 return rc;
1817}
1818
1819static const iw_handler wl3501_handler[] = {
270020e8
JP		 1820 IW_HANDLER(SIOCGIWNAME, wl3501_get_name),
1821 IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq),
1822 IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq),
1823 IW_HANDLER(SIOCSIWMODE, wl3501_set_mode),
1824 IW_HANDLER(SIOCGIWMODE, wl3501_get_mode),
1825 IW_HANDLER(SIOCGIWSENS, wl3501_get_sens),
1826 IW_HANDLER(SIOCGIWRANGE, wl3501_get_range),
1827 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1828 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1829 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1830 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1831 IW_HANDLER(SIOCSIWAP, wl3501_set_wap),
1832 IW_HANDLER(SIOCGIWAP, wl3501_get_wap),
1833 IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan),
1834 IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan),
1835 IW_HANDLER(SIOCSIWESSID, wl3501_set_essid),
1836 IW_HANDLER(SIOCGIWESSID, wl3501_get_essid),
1837 IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick),
1838 IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick),
1839 IW_HANDLER(SIOCGIWRATE, wl3501_get_rate),
1840 IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold),
1841 IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold),
1842 IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow),
1843 IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry),
1844 IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode),
1845 IW_HANDLER(SIOCGIWPOWER, wl3501_get_power),
1da177e4
LT		 1846};
1847
1848static const struct iw_handler_def wl3501_handler_def = {
ff8ac609 1849 .num_standard = ARRAY_SIZE(wl3501_handler),
1da177e4 1850 .standard = (iw_handler *)wl3501_handler,
00b309f5 1851 .get_wireless_stats = wl3501_get_wireless_stats,
1da177e4
LT		 1852};
1853
85a151b7
SH		 1854static const struct net_device_ops wl3501_netdev_ops = {
1855 .ndo_open = wl3501_open,
1856 .ndo_stop = wl3501_close,
1857 .ndo_start_xmit = wl3501_hard_start_xmit,
1858 .ndo_tx_timeout = wl3501_tx_timeout,
1859 .ndo_change_mtu = eth_change_mtu,
1860 .ndo_set_mac_address = eth_mac_addr,
1861 .ndo_validate_addr = eth_validate_addr,
1862};
1863
15b99ac1 1864static int wl3501_probe(struct pcmcia_device *p_dev)
1da177e4 1865{
1da177e4 1866 struct net_device *dev;
00b309f5 1867 struct wl3501_card *this;
1da177e4
LT		 1868
1869 /* The io structure describes IO port mapping */
90abdc3b
DB		 1870 p_dev->resource[0]->end = 16;
1871 p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8;
1da177e4 1872
1da177e4 1873 /* General socket configuration */
1ac71e5a 1874 p_dev->config_flags = CONF_ENABLE_IRQ;
7feabb64 1875 p_dev->config_index = 1;
1da177e4
LT		 1876
1877 dev = alloc_etherdev(sizeof(struct wl3501_card));
1878 if (!dev)
1879 goto out_link;
4255d411
SH		 1880
1881
85a151b7 1882 dev->netdev_ops = &wl3501_netdev_ops;
1da177e4 1883 dev->watchdog_timeo = 5 * HZ;
4255d411 1884
6dbc9c89 1885 this = netdev_priv(dev);
00b309f5 1886 this->wireless_data.spy_data = &this->spy_data;
fd238232 1887 this->p_dev = p_dev;
00b309f5 1888 dev->wireless_data = &this->wireless_data;
85a151b7 1889 dev->wireless_handlers = &wl3501_handler_def;
1da177e4
LT		 1890 SET_ETHTOOL_OPS(dev, &ops);
1891 netif_stop_queue(dev);
5fa9167a 1892 p_dev->priv = dev;
1da177e4 1893
15b99ac1 1894 return wl3501_config(p_dev);
1da177e4 1895out_link:
f8cfa618 1896 return -ENOMEM;
1da177e4
LT		 1897}
1898
15b99ac1 1899static int wl3501_config(struct pcmcia_device *link)
1da177e4 1900{
1da177e4 1901 struct net_device *dev = link->priv;
2caff147 1902 int i = 0, j, ret;
1da177e4
LT		 1903 struct wl3501_card *this;
1904
1da177e4
LT		 1905 /* Try allocating IO ports. This tries a few fixed addresses. If you
1906 * want, you can also read the card's config table to pick addresses --
1907 * see the serial driver for an example. */
90abdc3b 1908 link->io_lines = 5;
1da177e4
LT		 1909
1910 for (j = 0x280; j < 0x400; j += 0x20) {
1911 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1912 * 0x200-0x2ff, and so on, because this seems safer */
90abdc3b
DB		 1913 link->resource[0]->start = j;
1914 link->resource[1]->start = link->resource[0]->start + 0x10;
1915 i = pcmcia_request_io(link);
4c89e88b 1916 if (i == 0)
1da177e4
LT		 1917 break;
1918 }
2caff147 1919 if (i != 0)
1da177e4 1920 goto failed;
1da177e4
LT		 1921
1922 /* Now allocate an interrupt line. Note that this does not actually
1923 * assign a handler to the interrupt. */
1924
eb14120f 1925 ret = pcmcia_request_irq(link, wl3501_interrupt);
2caff147
DB		 1926 if (ret)
1927 goto failed;
1da177e4 1928
1ac71e5a 1929 ret = pcmcia_enable_device(link);
2caff147
DB		 1930 if (ret)
1931 goto failed;
1da177e4 1932
eb14120f 1933 dev->irq = link->irq;
9a017a91 1934 dev->base_addr = link->resource[0]->start;
dd2e5a15 1935 SET_NETDEV_DEV(dev, &link->dev);
1da177e4
LT		 1936 if (register_netdev(dev)) {
1937 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1938 goto failed;
1939 }
1940
6dbc9c89 1941 this = netdev_priv(dev);
1da177e4
LT		 1942
1943 this->base_addr = dev->base_addr;
1944
1945 if (!wl3501_get_flash_mac_addr(this)) {
1946 printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
1947 dev->name);
c7c2fa07 1948 unregister_netdev(dev);
1da177e4
LT		 1949 goto failed;
1950 }
1da177e4 1951
0795af57 1952 for (i = 0; i < 6; i++)
1da177e4 1953 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
0795af57
JP		 1954
1955 /* print probe information */
1956 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
e174961c 1957 "MAC addr in flash ROM:%pM\n",
0795af57 1958 dev->name, this->base_addr, (int)dev->irq,
e174961c 1959 dev->dev_addr);
1da177e4
LT		 1960 /*
1961 * Initialize card parameters - added by jss
1962 */
1963 this->net_type = IW_MODE_INFRA;
1964 this->bss_cnt = 0;
1965 this->join_sta_bss = 0;
1966 this->adhoc_times = 0;
1967 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
1968 "ANY", 3);
1969 this->card_name[0] = '\0';
1970 this->firmware_date[0] = '\0';
1971 this->rssi = 255;
1972 this->chan = iw_default_channel(this->reg_domain);
1973 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
1974 spin_lock_init(&this->lock);
1975 init_waitqueue_head(&this->wait);
1976 netif_start_queue(dev);
15b99ac1
DB		 1977 return 0;
1978
1da177e4
LT		 1979failed:
1980 wl3501_release(link);
15b99ac1 1981 return -ENODEV;
1da177e4
LT		 1982}
1983
fba395ee 1984static void wl3501_release(struct pcmcia_device *link)
1da177e4 1985{
fba395ee 1986 pcmcia_disable_device(link);
1da177e4
LT		 1987}
1988
fba395ee 1989static int wl3501_suspend(struct pcmcia_device *link)
98e4c28b 1990{
98e4c28b
DB		 1991 struct net_device *dev = link->priv;
1992
6dbc9c89 1993 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
e2d40963 1994 if (link->open)
8661bb5b 1995 netif_device_detach(dev);
98e4c28b
DB		 1996
1997 return 0;
1998}
1999
fba395ee 2000static int wl3501_resume(struct pcmcia_device *link)
98e4c28b 2001{
98e4c28b
DB		 2002 struct net_device *dev = link->priv;
2003
6dbc9c89 2004 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
e2d40963 2005 if (link->open) {
8661bb5b
DB		 2006 wl3501_reset(dev);
2007 netif_device_attach(dev);
98e4c28b
DB		 2008 }
2009
2010 return 0;
2011}
2012
2013
77b73f9b
DB		 2014static struct pcmcia_device_id wl3501_ids[] = {
2015 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2016 PCMCIA_DEVICE_NULL
2017};
2018MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2019
1da177e4 2020static struct pcmcia_driver wl3501_driver = {
1e212f36 2021 .owner = THIS_MODULE,
2e9b981a 2022 .name = "wl3501_cs",
15b99ac1 2023 .probe = wl3501_probe,
cc3b4866 2024 .remove = wl3501_detach,
77b73f9b 2025 .id_table = wl3501_ids,
98e4c28b
DB		 2026 .suspend = wl3501_suspend,
2027 .resume = wl3501_resume,
1da177e4
LT		 2028};
2029
2030static int __init wl3501_init_module(void)
2031{
2032 return pcmcia_register_driver(&wl3501_driver);
2033}
2034
2035static void __exit wl3501_exit_module(void)
2036{
1da177e4 2037 pcmcia_unregister_driver(&wl3501_driver);
1da177e4
LT		 2038}
2039
2040module_init(wl3501_init_module);
2041module_exit(wl3501_exit_module);
2042
2043MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2044 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2045 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2046MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2047MODULE_LICENSE("GPL");
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