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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[net-next-2.6.git] / drivers / net / wireless / wl3501_cs.c
CommitLineData
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>
1da177e4
LT		 32#include <linux/init.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>
9ee677c2 46#include <linux/ieee80211.h>
1da177e4
LT		 47
48#include <net/iw_handler.h>
49
1da177e4
LT		 50#include <pcmcia/cs.h>
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
80/*
81 * The event() function is this driver's Card Services event handler. It will
82 * be called by Card Services when an appropriate card status event is
83 * received. The config() and release() entry points are used to configure or
84 * release a socket, in response to card insertion and ejection events. They
85 * are invoked from the wl24 event handler.
86 */
15b99ac1 87static int wl3501_config(struct pcmcia_device *link);
fba395ee 88static void wl3501_release(struct pcmcia_device *link);
1da177e4 89
1da177e4
LT		 90static const struct {
91 int reg_domain;
92 int min, max, deflt;
93} iw_channel_table[] = {
94 {
95 .reg_domain = IW_REG_DOMAIN_FCC,
96 .min = 1,
97 .max = 11,
98 .deflt = 1,
99 },
100 {
101 .reg_domain = IW_REG_DOMAIN_DOC,
102 .min = 1,
103 .max = 11,
104 .deflt = 1,
105 },
106 {
107 .reg_domain = IW_REG_DOMAIN_ETSI,
108 .min = 1,
109 .max = 13,
110 .deflt = 1,
111 },
112 {
113 .reg_domain = IW_REG_DOMAIN_SPAIN,
114 .min = 10,
115 .max = 11,
116 .deflt = 10,
117 },
118 {
119 .reg_domain = IW_REG_DOMAIN_FRANCE,
120 .min = 10,
121 .max = 13,
122 .deflt = 10,
123 },
124 {
125 .reg_domain = IW_REG_DOMAIN_MKK,
126 .min = 14,
127 .max = 14,
128 .deflt = 14,
129 },
130 {
131 .reg_domain = IW_REG_DOMAIN_MKK1,
132 .min = 1,
133 .max = 14,
134 .deflt = 1,
135 },
136 {
137 .reg_domain = IW_REG_DOMAIN_ISRAEL,
138 .min = 3,
139 .max = 9,
140 .deflt = 9,
141 },
142};
143
144/**
145 * iw_valid_channel - validate channel in regulatory domain
146 * @reg_comain - regulatory domain
147 * @channel - channel to validate
148 *
149 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
150 */
151static int iw_valid_channel(int reg_domain, int channel)
152{
153 int i, rc = 0;
154
155 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
156 if (reg_domain == iw_channel_table[i].reg_domain) {
157 rc = channel >= iw_channel_table[i].min &&
158 channel <= iw_channel_table[i].max;
159 break;
160 }
161 return rc;
162}
163
164/**
165 * iw_default_channel - get default channel for a regulatory domain
166 * @reg_comain - regulatory domain
167 *
168 * Returns the default channel for a regulatory domain
169 */
170static int iw_default_channel(int reg_domain)
171{
172 int i, rc = 1;
173
174 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
175 if (reg_domain == iw_channel_table[i].reg_domain) {
176 rc = iw_channel_table[i].deflt;
177 break;
178 }
179 return rc;
180}
181
182static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
183 struct iw_mgmt_info_element *el,
184 void *value, int len)
185{
186 el->id = id;
187 el->len = len;
188 memcpy(el->data, value, len);
189}
190
191static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
192 struct iw_mgmt_info_element *from)
193{
194 iw_set_mgmt_info_element(from->id, to, from->data, from->len);
195}
196
1da177e4
LT		 197static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
198{
199 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
200}
201
202/*
203 * Get Ethernet MAC addresss.
204 *
205 * WARNING: We switch to FPAGE0 and switc back again.
206 * Making sure there is no other WL function beening called by ISR.
207 */
208static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
209{
210 int base_addr = this->base_addr;
211
212 /* get MAC addr */
213 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
214 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
215 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
216
217 /* wait for reading EEPROM */
218 WL3501_NOPLOOP(100);
219 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
220 WL3501_NOPLOOP(100);
221 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
222 WL3501_NOPLOOP(100);
223 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
224 WL3501_NOPLOOP(100);
225 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
226 WL3501_NOPLOOP(100);
227 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
228 WL3501_NOPLOOP(100);
229 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
230 WL3501_NOPLOOP(100);
231 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
232 WL3501_NOPLOOP(100);
233 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
234 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
235 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
236 WL3501_NOPLOOP(100);
237 this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
238 WL3501_NOPLOOP(100);
239 this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
240 /* switch to SRAM Page 0 (for safety) */
241 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
242
243 /* The MAC addr should be 00:60:... */
244 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
245}
246
247/**
248 * wl3501_set_to_wla - Move 'size' bytes from PC to card
249 * @dest: Card addressing space
250 * @src: PC addressing space
251 * @size: Bytes to move
252 *
253 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
254 */
ff1d2767
JM		 255static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
256 int size)
1da177e4
LT		 257{
258 /* switch to SRAM Page 0 */
259 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
260 WL3501_BSS_SPAGE0);
261 /* set LMAL and LMAH */
262 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
263 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
264
265 /* rep out to Port A */
266 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
267}
268
269/**
270 * wl3501_get_from_wla - Move 'size' bytes from card to PC
271 * @src: Card addressing space
272 * @dest: PC addressing space
273 * @size: Bytes to move
274 *
275 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
276 */
ff1d2767
JM		 277static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
278 int size)
1da177e4
LT		 279{
280 /* switch to SRAM Page 0 */
281 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
282 WL3501_BSS_SPAGE0);
283 /* set LMAL and LMAH */
284 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
285 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
286
287 /* rep get from Port A */
288 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
289}
290
291/*
292 * Get/Allocate a free Tx Data Buffer
293 *
294 * *--------------*-----------------*----------------------------------*
295 * | PLCP | MAC Header | DST SRC Data ... |
296 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
297 * *--------------*-----------------*----------------------------------*
298 * \ \- IEEE 802.11 -/ \-------------- len --------------/
299 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
300 *
301 * Return = Postion in Card
302 */
303static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
304{
305 u16 next, blk_cnt = 0, zero = 0;
306 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
307 u16 ret = 0;
308
309 if (full_len > this->tx_buffer_cnt * 254)
310 goto out;
311 ret = this->tx_buffer_head;
312 while (full_len) {
313 if (full_len < 254)
314 full_len = 0;
315 else
316 full_len -= 254;
317 wl3501_get_from_wla(this, this->tx_buffer_head, &next,
318 sizeof(next));
319 if (!full_len)
320 wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
321 sizeof(zero));
322 this->tx_buffer_head = next;
323 blk_cnt++;
324 /* if buffer is not enough */
325 if (!next && full_len) {
326 this->tx_buffer_head = ret;
327 ret = 0;
328 goto out;
329 }
330 }
331 this->tx_buffer_cnt -= blk_cnt;
332out:
333 return ret;
334}
335
336/*
337 * Free an allocated Tx Buffer. ptr must be correct position.
338 */
339static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
340{
341 /* check if all space is not free */
342 if (!this->tx_buffer_head)
343 this->tx_buffer_head = ptr;
344 else
345 wl3501_set_to_wla(this, this->tx_buffer_tail,
346 &ptr, sizeof(ptr));
347 while (ptr) {
348 u16 next;
349
350 this->tx_buffer_cnt++;
351 wl3501_get_from_wla(this, ptr, &next, sizeof(next));
352 this->tx_buffer_tail = ptr;
353 ptr = next;
354 }
355}
356
357static int wl3501_esbq_req_test(struct wl3501_card *this)
358{
a2fb0ad3 359 u8 tmp = 0;
1da177e4
LT		 360
361 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
362 return tmp & 0x80;
363}
364
365static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
366{
367 u16 tmp = 0;
368
369 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
370 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
371 this->esbq_req_head += 4;
372 if (this->esbq_req_head >= this->esbq_req_end)
373 this->esbq_req_head = this->esbq_req_start;
374}
375
376static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
377{
378 int rc = -EIO;
379
380 if (wl3501_esbq_req_test(this)) {
381 u16 ptr = wl3501_get_tx_buffer(this, sig_size);
382 if (ptr) {
383 wl3501_set_to_wla(this, ptr, sig, sig_size);
384 wl3501_esbq_req(this, &ptr);
385 rc = 0;
386 }
387 }
388 return rc;
389}
390
391static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
392 void *bf, int size)
393{
394 struct wl3501_get_req sig = {
395 .sig_id = WL3501_SIG_GET_REQ,
396 .mib_attrib = index,
397 };
398 unsigned long flags;
399 int rc = -EIO;
400
401 spin_lock_irqsave(&this->lock, flags);
402 if (wl3501_esbq_req_test(this)) {
403 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
404 if (ptr) {
405 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
406 wl3501_esbq_req(this, &ptr);
407 this->sig_get_confirm.mib_status = 255;
408 spin_unlock_irqrestore(&this->lock, flags);
409 rc = wait_event_interruptible(this->wait,
410 this->sig_get_confirm.mib_status != 255);
411 if (!rc)
412 memcpy(bf, this->sig_get_confirm.mib_value,
413 size);
414 goto out;
415 }
416 }
417 spin_unlock_irqrestore(&this->lock, flags);
418out:
419 return rc;
420}
421
422static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
423{
424 struct wl3501_pwr_mgmt_req sig = {
425 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
426 .pwr_save = suspend,
427 .wake_up = !suspend,
428 .receive_dtims = 10,
429 };
430 unsigned long flags;
431 int rc = -EIO;
432
433 spin_lock_irqsave(&this->lock, flags);
434 if (wl3501_esbq_req_test(this)) {
435 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
436 if (ptr) {
437 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
438 wl3501_esbq_req(this, &ptr);
439 this->sig_pwr_mgmt_confirm.status = 255;
440 spin_unlock_irqrestore(&this->lock, flags);
441 rc = wait_event_interruptible(this->wait,
442 this->sig_pwr_mgmt_confirm.status != 255);
c94c93da 443 printk(KERN_INFO "%s: %s status=%d\n", __func__,
1da177e4
LT		 444 suspend ? "suspend" : "resume",
445 this->sig_pwr_mgmt_confirm.status);
446 goto out;
447 }
448 }
449 spin_unlock_irqrestore(&this->lock, flags);
450out:
451 return rc;
452}
453
454/**
455 * wl3501_send_pkt - Send a packet.
456 * @this - card
457 *
458 * Send a packet.
459 *
460 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
461 * data[6] - data[11] is Src MAC Addr)
462 * Ref: IEEE 802.11
463 */
464static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
465{
466 u16 bf, sig_bf, next, tmplen, pktlen;
467 struct wl3501_md_req sig = {
468 .sig_id = WL3501_SIG_MD_REQ,
469 };
470 u8 *pdata = (char *)data;
471 int rc = -EIO;
472
473 if (wl3501_esbq_req_test(this)) {
474 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
475 rc = -ENOMEM;
476 if (!sig_bf) /* No free buffer available */
477 goto out;
478 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
479 if (!bf) {
480 /* No free buffer available */
481 wl3501_free_tx_buffer(this, sig_bf);
482 goto out;
483 }
484 rc = 0;
485 memcpy(&sig.daddr[0], pdata, 12);
486 pktlen = len - 12;
487 pdata += 12;
488 sig.data = bf;
489 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
490 u8 addr4[ETH_ALEN] = {
491 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
492 };
493
494 wl3501_set_to_wla(this, bf + 2 +
495 offsetof(struct wl3501_tx_hdr, addr4),
496 addr4, sizeof(addr4));
497 sig.size = pktlen + 24 + 4 + 6;
498 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
499 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
500 pktlen -= tmplen;
501 } else {
502 tmplen = pktlen;
503 pktlen = 0;
504 }
505 wl3501_set_to_wla(this,
506 bf + 2 + sizeof(struct wl3501_tx_hdr),
507 pdata, tmplen);
508 pdata += tmplen;
509 wl3501_get_from_wla(this, bf, &next, sizeof(next));
510 bf = next;
511 } else {
512 sig.size = pktlen + 24 + 4 - 2;
513 pdata += 2;
514 pktlen -= 2;
515 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
516 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
517 pktlen -= tmplen;
518 } else {
519 tmplen = pktlen;
520 pktlen = 0;
521 }
522 wl3501_set_to_wla(this, bf + 2 +
523 offsetof(struct wl3501_tx_hdr, addr4),
524 pdata, tmplen);
525 pdata += tmplen;
526 wl3501_get_from_wla(this, bf, &next, sizeof(next));
527 bf = next;
528 }
529 while (pktlen > 0) {
530 if (pktlen > 254) {
531 tmplen = 254;
532 pktlen -= 254;
533 } else {
534 tmplen = pktlen;
535 pktlen = 0;
536 }
537 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
538 pdata += tmplen;
539 wl3501_get_from_wla(this, bf, &next, sizeof(next));
540 bf = next;
541 }
542 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
543 wl3501_esbq_req(this, &sig_bf);
544 }
545out:
546 return rc;
547}
548
549static int wl3501_mgmt_resync(struct wl3501_card *this)
550{
551 struct wl3501_resync_req sig = {
552 .sig_id = WL3501_SIG_RESYNC_REQ,
553 };
554
555 return wl3501_esbq_exec(this, &sig, sizeof(sig));
556}
557
558static inline int wl3501_fw_bss_type(struct wl3501_card *this)
559{
560 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
561 WL3501_NET_TYPE_ADHOC;
562}
563
564static inline int wl3501_fw_cap_info(struct wl3501_card *this)
565{
566 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
567 WL3501_MGMT_CAPABILITY_IBSS;
568}
569
570static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
571{
572 struct wl3501_scan_req sig = {
573 .sig_id = WL3501_SIG_SCAN_REQ,
574 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
575 .probe_delay = 0x10,
576 .min_chan_time = chan_time,
577 .max_chan_time = chan_time,
578 .bss_type = wl3501_fw_bss_type(this),
579 };
580
581 this->bss_cnt = this->join_sta_bss = 0;
582 return wl3501_esbq_exec(this, &sig, sizeof(sig));
583}
584
585static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
586{
587 struct wl3501_join_req sig = {
588 .sig_id = WL3501_SIG_JOIN_REQ,
589 .timeout = 10,
590 .ds_pset = {
591 .el = {
592 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
593 .len = 1,
594 },
595 .chan = this->chan,
596 },
597 };
598
599 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
600 return wl3501_esbq_exec(this, &sig, sizeof(sig));
601}
602
603static int wl3501_mgmt_start(struct wl3501_card *this)
604{
605 struct wl3501_start_req sig = {
606 .sig_id = WL3501_SIG_START_REQ,
607 .beacon_period = 400,
608 .dtim_period = 1,
609 .ds_pset = {
610 .el = {
611 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
612 .len = 1,
613 },
614 .chan = this->chan,
615 },
616 .bss_basic_rset = {
617 .el = {
618 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
619 .len = 2,
620 },
621 .data_rate_labels = {
622 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
623 IW_MGMT_RATE_LABEL_1MBIT,
624 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
625 IW_MGMT_RATE_LABEL_2MBIT,
626 },
627 },
628 .operational_rset = {
629 .el = {
630 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
631 .len = 2,
632 },
633 .data_rate_labels = {
634 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
635 IW_MGMT_RATE_LABEL_1MBIT,
636 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
637 IW_MGMT_RATE_LABEL_2MBIT,
638 },
639 },
640 .ibss_pset = {
641 .el = {
642 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
643 .len = 2,
644 },
645 .atim_window = 10,
646 },
647 .bss_type = wl3501_fw_bss_type(this),
648 .cap_info = wl3501_fw_cap_info(this),
649 };
650
651 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
652 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
653 return wl3501_esbq_exec(this, &sig, sizeof(sig));
654}
655
656static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
657{
658 u16 i = 0;
659 int matchflag = 0;
660 struct wl3501_scan_confirm sig;
661
2caff147 662 pr_debug("entry");
1da177e4
LT		 663 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
664 if (sig.status == WL3501_STATUS_SUCCESS) {
2caff147 665 pr_debug("success");
1da177e4
LT		 666 if ((this->net_type == IW_MODE_INFRA &&
667 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
668 (this->net_type == IW_MODE_ADHOC &&
669 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
670 this->net_type == IW_MODE_AUTO) {
671 if (!this->essid.el.len)
672 matchflag = 1;
673 else if (this->essid.el.len == 3 &&
674 !memcmp(this->essid.essid, "ANY", 3))
675 matchflag = 1;
676 else if (this->essid.el.len != sig.ssid.el.len)
677 matchflag = 0;
678 else if (memcmp(this->essid.essid, sig.ssid.essid,
679 this->essid.el.len))
680 matchflag = 0;
681 else
682 matchflag = 1;
683 if (matchflag) {
684 for (i = 0; i < this->bss_cnt; i++) {
685 if (!memcmp(this->bss_set[i].bssid,
686 sig.bssid, ETH_ALEN)) {
687 matchflag = 0;
688 break;
689 }
690 }
691 }
692 if (matchflag && (i < 20)) {
693 memcpy(&this->bss_set[i].beacon_period,
694 &sig.beacon_period, 73);
695 this->bss_cnt++;
696 this->rssi = sig.rssi;
697 }
698 }
699 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
2caff147 700 pr_debug("timeout");
1da177e4
LT		 701 this->join_sta_bss = 0;
702 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
703 if (!wl3501_mgmt_join(this, i))
704 break;
705 this->join_sta_bss = i;
706 if (this->join_sta_bss == this->bss_cnt) {
707 if (this->net_type == IW_MODE_INFRA)
708 wl3501_mgmt_scan(this, 100);
709 else {
710 this->adhoc_times++;
711 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
712 wl3501_mgmt_start(this);
713 else
714 wl3501_mgmt_scan(this, 100);
715 }
716 }
717 }
718}
719
720/**
721 * wl3501_block_interrupt - Mask interrupt from SUTRO
722 * @this - card
723 *
724 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
725 * Return: 1 if interrupt is originally enabled
726 */
727static int wl3501_block_interrupt(struct wl3501_card *this)
728{
729 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
730 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
731 WL3501_GCR_ENECINT));
732
733 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
734 return old & WL3501_GCR_ENECINT;
735}
736
737/**
738 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
739 * @this - card
740 *
741 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
742 * Return: 1 if interrupt is originally enabled
743 */
744static int wl3501_unblock_interrupt(struct wl3501_card *this)
745{
746 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
747 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
748 WL3501_GCR_ENECINT;
749
750 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
751 return old & WL3501_GCR_ENECINT;
752}
753
754/**
755 * wl3501_receive - Receive data from Receive Queue.
756 *
757 * Receive data from Receive Queue.
758 *
759 * @this: card
760 * @bf: address of host
761 * @size: size of buffer.
762 */
763static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
764{
765 u16 next_addr, next_addr1;
766 u8 *data = bf + 12;
767
768 size -= 12;
769 wl3501_get_from_wla(this, this->start_seg + 2,
770 &next_addr, sizeof(next_addr));
771 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
772 wl3501_get_from_wla(this,
773 this->start_seg +
774 sizeof(struct wl3501_rx_hdr), data,
775 WL3501_BLKSZ -
776 sizeof(struct wl3501_rx_hdr));
777 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
778 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
779 } else {
780 wl3501_get_from_wla(this,
781 this->start_seg +
782 sizeof(struct wl3501_rx_hdr),
783 data, size);
784 size = 0;
785 }
786 while (size > 0) {
787 if (size > WL3501_BLKSZ - 5) {
788 wl3501_get_from_wla(this, next_addr + 5, data,
789 WL3501_BLKSZ - 5);
790 size -= WL3501_BLKSZ - 5;
791 data += WL3501_BLKSZ - 5;
792 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
793 sizeof(next_addr1));
794 next_addr = next_addr1;
795 } else {
796 wl3501_get_from_wla(this, next_addr + 5, data, size);
797 size = 0;
798 }
799 }
800 return 0;
801}
802
803static void wl3501_esbq_req_free(struct wl3501_card *this)
804{
805 u8 tmp;
806 u16 addr;
807
808 if (this->esbq_req_head == this->esbq_req_tail)
809 goto out;
810 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
811 if (!(tmp & 0x80))
812 goto out;
813 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
814 wl3501_free_tx_buffer(this, addr);
815 this->esbq_req_tail += 4;
816 if (this->esbq_req_tail >= this->esbq_req_end)
817 this->esbq_req_tail = this->esbq_req_start;
818out:
819 return;
820}
821
822static int wl3501_esbq_confirm(struct wl3501_card *this)
823{
824 u8 tmp;
825
826 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
827 return tmp & 0x80;
828}
829
830static void wl3501_online(struct net_device *dev)
831{
6dbc9c89 832 struct wl3501_card *this = netdev_priv(dev);
1da177e4 833
e174961c
JB		 834 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
835 dev->name, this->bssid);
1da177e4
LT		 836 netif_wake_queue(dev);
837}
838
839static void wl3501_esbq_confirm_done(struct wl3501_card *this)
840{
841 u8 tmp = 0;
842
843 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
844 this->esbq_confirm += 4;
845 if (this->esbq_confirm >= this->esbq_confirm_end)
846 this->esbq_confirm = this->esbq_confirm_start;
847}
848
849static int wl3501_mgmt_auth(struct wl3501_card *this)
850{
851 struct wl3501_auth_req sig = {
852 .sig_id = WL3501_SIG_AUTH_REQ,
853 .type = WL3501_SYS_TYPE_OPEN,
854 .timeout = 1000,
855 };
856
2caff147 857 pr_debug("entry");
1da177e4
LT		 858 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
859 return wl3501_esbq_exec(this, &sig, sizeof(sig));
860}
861
862static int wl3501_mgmt_association(struct wl3501_card *this)
863{
864 struct wl3501_assoc_req sig = {
865 .sig_id = WL3501_SIG_ASSOC_REQ,
866 .timeout = 1000,
867 .listen_interval = 5,
868 .cap_info = this->cap_info,
869 };
870
2caff147 871 pr_debug("entry");
1da177e4
LT		 872 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
873 return wl3501_esbq_exec(this, &sig, sizeof(sig));
874}
875
876static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
877{
6dbc9c89 878 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 879 struct wl3501_join_confirm sig;
880
2caff147 881 pr_debug("entry");
1da177e4
LT		 882 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
883 if (sig.status == WL3501_STATUS_SUCCESS) {
884 if (this->net_type == IW_MODE_INFRA) {
885 if (this->join_sta_bss < this->bss_cnt) {
886 const int i = this->join_sta_bss;
887 memcpy(this->bssid,
888 this->bss_set[i].bssid, ETH_ALEN);
889 this->chan = this->bss_set[i].ds_pset.chan;
890 iw_copy_mgmt_info_element(&this->keep_essid.el,
891 &this->bss_set[i].ssid.el);
892 wl3501_mgmt_auth(this);
893 }
894 } else {
895 const int i = this->join_sta_bss;
896
897 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
898 this->chan = this->bss_set[i].ds_pset.chan;
899 iw_copy_mgmt_info_element(&this->keep_essid.el,
900 &this->bss_set[i].ssid.el);
901 wl3501_online(dev);
902 }
903 } else {
904 int i;
905 this->join_sta_bss++;
906 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
907 if (!wl3501_mgmt_join(this, i))
908 break;
909 this->join_sta_bss = i;
910 if (this->join_sta_bss == this->bss_cnt) {
911 if (this->net_type == IW_MODE_INFRA)
912 wl3501_mgmt_scan(this, 100);
913 else {
914 this->adhoc_times++;
915 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
916 wl3501_mgmt_start(this);
917 else
918 wl3501_mgmt_scan(this, 100);
919 }
920 }
921 }
922}
923
924static inline void wl3501_alarm_interrupt(struct net_device *dev,
925 struct wl3501_card *this)
926{
927 if (this->net_type == IW_MODE_INFRA) {
928 printk(KERN_INFO "Wireless LAN offline\n");
929 netif_stop_queue(dev);
930 wl3501_mgmt_resync(this);
931 }
932}
933
934static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
935 struct wl3501_card *this,
936 u16 addr)
937{
938 struct wl3501_md_confirm sig;
939
2caff147 940 pr_debug("entry");
1da177e4
LT		 941 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
942 wl3501_free_tx_buffer(this, sig.data);
943 if (netif_queue_stopped(dev))
944 netif_wake_queue(dev);
945}
946
947static inline void wl3501_md_ind_interrupt(struct net_device *dev,
948 struct wl3501_card *this, u16 addr)
949{
950 struct wl3501_md_ind sig;
951 struct sk_buff *skb;
952 u8 rssi, addr4[ETH_ALEN];
953 u16 pkt_len;
954
955 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
956 this->start_seg = sig.data;
957 wl3501_get_from_wla(this,
958 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
959 &rssi, sizeof(rssi));
960 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
961
962 wl3501_get_from_wla(this,
963 sig.data +
964 offsetof(struct wl3501_rx_hdr, addr4),
965 &addr4, sizeof(addr4));
966 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
967 addr4[2] == 0x03 && addr4[4] == 0x00)) {
968 printk(KERN_INFO "Insupported packet type!\n");
969 return;
970 }
971 pkt_len = sig.size + 12 - 24 - 4 - 6;
972
973 skb = dev_alloc_skb(pkt_len + 5);
974
975 if (!skb) {
976 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
977 dev->name, pkt_len);
4255d411 978 dev->stats.rx_dropped++;
1da177e4
LT		 979 } else {
980 skb->dev = dev;
981 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
8c7b7faa 982 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
1da177e4
LT		 983 wl3501_receive(this, skb->data, pkt_len);
984 skb_put(skb, pkt_len);
985 skb->protocol = eth_type_trans(skb, dev);
4255d411
SH		 986 dev->stats.rx_packets++;
987 dev->stats.rx_bytes += skb->len;
1da177e4
LT		 988 netif_rx(skb);
989 }
990}
991
992static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
993 u16 addr, void *sig, int size)
994{
2caff147 995 pr_debug("entry");
1da177e4
LT		 996 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
997 sizeof(this->sig_get_confirm));
998 wake_up(&this->wait);
999}
1000
1001static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1002 struct wl3501_card *this,
1003 u16 addr)
1004{
1005 struct wl3501_start_confirm sig;
1006
2caff147 1007 pr_debug("entry");
1da177e4
LT		 1008 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1009 if (sig.status == WL3501_STATUS_SUCCESS)
1010 netif_wake_queue(dev);
1011}
1012
1013static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1014 u16 addr)
1015{
6dbc9c89 1016 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1017 struct wl3501_assoc_confirm sig;
1018
2caff147 1019 pr_debug("entry");
1da177e4
LT		 1020 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1021
1022 if (sig.status == WL3501_STATUS_SUCCESS)
1023 wl3501_online(dev);
1024}
1025
1026static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1027 u16 addr)
1028{
1029 struct wl3501_auth_confirm sig;
1030
2caff147 1031 pr_debug("entry");
1da177e4
LT		 1032 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1033
1034 if (sig.status == WL3501_STATUS_SUCCESS)
1035 wl3501_mgmt_association(this);
1036 else
1037 wl3501_mgmt_resync(this);
1038}
1039
1040static inline void wl3501_rx_interrupt(struct net_device *dev)
1041{
1042 int morepkts;
1043 u16 addr;
1044 u8 sig_id;
6dbc9c89 1045 struct wl3501_card *this = netdev_priv(dev);
1da177e4 1046
2caff147 1047 pr_debug("entry");
1da177e4
LT		 1048loop:
1049 morepkts = 0;
1050 if (!wl3501_esbq_confirm(this))
1051 goto free;
1052 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1053 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1054
1055 switch (sig_id) {
1056 case WL3501_SIG_DEAUTH_IND:
1057 case WL3501_SIG_DISASSOC_IND:
1058 case WL3501_SIG_ALARM:
1059 wl3501_alarm_interrupt(dev, this);
1060 break;
1061 case WL3501_SIG_MD_CONFIRM:
1062 wl3501_md_confirm_interrupt(dev, this, addr);
1063 break;
1064 case WL3501_SIG_MD_IND:
1065 wl3501_md_ind_interrupt(dev, this, addr);
1066 break;
1067 case WL3501_SIG_GET_CONFIRM:
1068 wl3501_get_confirm_interrupt(this, addr,
1069 &this->sig_get_confirm,
1070 sizeof(this->sig_get_confirm));
1071 break;
1072 case WL3501_SIG_PWR_MGMT_CONFIRM:
1073 wl3501_get_confirm_interrupt(this, addr,
1074 &this->sig_pwr_mgmt_confirm,
1075 sizeof(this->sig_pwr_mgmt_confirm));
1076 break;
1077 case WL3501_SIG_START_CONFIRM:
1078 wl3501_start_confirm_interrupt(dev, this, addr);
1079 break;
1080 case WL3501_SIG_SCAN_CONFIRM:
1081 wl3501_mgmt_scan_confirm(this, addr);
1082 break;
1083 case WL3501_SIG_JOIN_CONFIRM:
1084 wl3501_mgmt_join_confirm(dev, addr);
1085 break;
1086 case WL3501_SIG_ASSOC_CONFIRM:
1087 wl3501_assoc_confirm_interrupt(dev, addr);
1088 break;
1089 case WL3501_SIG_AUTH_CONFIRM:
1090 wl3501_auth_confirm_interrupt(this, addr);
1091 break;
1092 case WL3501_SIG_RESYNC_CONFIRM:
1093 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1094 break;
1095 }
1096 wl3501_esbq_confirm_done(this);
1097 morepkts = 1;
1098 /* free request if necessary */
1099free:
1100 wl3501_esbq_req_free(this);
1101 if (morepkts)
1102 goto loop;
1103}
1104
1105static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1106{
1107 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1108}
1109
1110/**
1111 * wl3501_interrupt - Hardware interrupt from card.
1112 * @irq - Interrupt number
1113 * @dev_id - net_device
1da177e4
LT		 1114 *
1115 * We must acknowledge the interrupt as soon as possible, and block the
1116 * interrupt from the same card immediately to prevent re-entry.
1117 *
1118 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1119 * On the other hand, to prevent SUTRO from malfunctioning, we must
1120 * unlock the SUTRO as soon as possible.
1121 */
7d12e780 1122static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1da177e4 1123{
c31f28e7 1124 struct net_device *dev = dev_id;
1da177e4 1125 struct wl3501_card *this;
1da177e4 1126
c31f28e7 1127 this = netdev_priv(dev);
1da177e4
LT		 1128 spin_lock(&this->lock);
1129 wl3501_ack_interrupt(this);
1130 wl3501_block_interrupt(this);
1131 wl3501_rx_interrupt(dev);
1132 wl3501_unblock_interrupt(this);
1133 spin_unlock(&this->lock);
c31f28e7
JG		 1134
1135 return IRQ_HANDLED;
1da177e4
LT		 1136}
1137
1138static int wl3501_reset_board(struct wl3501_card *this)
1139{
1140 u8 tmp = 0;
1141 int i, rc = 0;
1142
1143 /* Coreset */
1144 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1145 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1146 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1147
1148 /* Reset SRAM 0x480 to zero */
1149 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1150
1151 /* Start up */
1152 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1153
1154 WL3501_NOPLOOP(1024 * 50);
1155
1156 wl3501_unblock_interrupt(this); /* acme: was commented */
1157
1158 /* Polling Self_Test_Status */
1159 for (i = 0; i < 10000; i++) {
1160 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1161
1162 if (tmp == 'W') {
1163 /* firmware complete all test successfully */
1164 tmp = 'A';
1165 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1166 goto out;
1167 }
1168 WL3501_NOPLOOP(10);
1169 }
c94c93da 1170 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1da177e4
LT		 1171 rc = -ENODEV;
1172out:
1173 return rc;
1174}
1175
1176static int wl3501_init_firmware(struct wl3501_card *this)
1177{
1178 u16 ptr, next;
1179 int rc = wl3501_reset_board(this);
1180
1181 if (rc)
1182 goto fail;
1183 this->card_name[0] = '\0';
1184 wl3501_get_from_wla(this, 0x1a00,
1185 this->card_name, sizeof(this->card_name));
1186 this->card_name[sizeof(this->card_name) - 1] = '\0';
1187 this->firmware_date[0] = '\0';
1188 wl3501_get_from_wla(this, 0x1a40,
1189 this->firmware_date, sizeof(this->firmware_date));
1190 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1191 /* Switch to SRAM Page 0 */
1192 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1193 /* Read parameter from card */
1194 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1195 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1196 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1197 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1198 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1199 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1200 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1201 this->esbq_req_end += this->esbq_req_start;
1202 this->esbq_confirm = this->esbq_confirm_start;
1203 this->esbq_confirm_end += this->esbq_confirm_start;
1204 /* Initial Tx Buffer */
1205 this->tx_buffer_cnt = 1;
1206 ptr = this->tx_buffer_head;
1207 next = ptr + WL3501_BLKSZ;
1208 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1209 this->tx_buffer_cnt++;
1210 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1211 ptr = next;
1212 next = ptr + WL3501_BLKSZ;
1213 }
1214 rc = 0;
1215 next = 0;
1216 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1217 this->tx_buffer_tail = ptr;
1218out:
1219 return rc;
1220fail:
c94c93da 1221 printk(KERN_WARNING "%s: failed!\n", __func__);
1da177e4
LT		 1222 goto out;
1223}
1224
1225static int wl3501_close(struct net_device *dev)
1226{
6dbc9c89 1227 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1228 int rc = -ENODEV;
1229 unsigned long flags;
fba395ee 1230 struct pcmcia_device *link;
fd238232 1231 link = this->p_dev;
1da177e4
LT		 1232
1233 spin_lock_irqsave(&this->lock, flags);
1da177e4
LT		 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 rc = 0;
1244 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1da177e4
LT		 1245 spin_unlock_irqrestore(&this->lock, flags);
1246 return rc;
1247}
1248
1249/**
1250 * wl3501_reset - Reset the SUTRO.
1251 * @dev - network device
1252 *
1253 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1254 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1255 * is running. It seems to be dangerous.
1256 */
1257static int wl3501_reset(struct net_device *dev)
1258{
6dbc9c89 1259 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1260 int rc = -ENODEV;
1261
1262 wl3501_block_interrupt(this);
1263
1264 if (wl3501_init_firmware(this)) {
1265 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1266 dev->name);
1267 /* Free IRQ, and mark IRQ as unused */
1268 free_irq(dev->irq, dev);
1269 goto out;
1270 }
1271
1272 /*
1273 * Queue has to be started only when the Card is Started
1274 */
1275 netif_stop_queue(dev);
1276 this->adhoc_times = 0;
1277 wl3501_ack_interrupt(this);
1278 wl3501_unblock_interrupt(this);
1279 wl3501_mgmt_scan(this, 100);
2caff147 1280 pr_debug("%s: device reset", dev->name);
1da177e4
LT		 1281 rc = 0;
1282out:
1283 return rc;
1284}
1285
1286static void wl3501_tx_timeout(struct net_device *dev)
1287{
6dbc9c89 1288 struct wl3501_card *this = netdev_priv(dev);
4255d411 1289 struct net_device_stats *stats = &dev->stats;
1da177e4
LT		 1290 unsigned long flags;
1291 int rc;
1292
1293 stats->tx_errors++;
1294 spin_lock_irqsave(&this->lock, flags);
1295 rc = wl3501_reset(dev);
1296 spin_unlock_irqrestore(&this->lock, flags);
1297 if (rc)
1298 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1299 dev->name, rc);
1300 else {
1ae5dc34 1301 dev->trans_start = jiffies; /* prevent tx timeout */
1da177e4
LT		 1302 netif_wake_queue(dev);
1303 }
1304}
1305
1306/*
1307 * Return : 0 - OK
1308 * 1 - Could not transmit (dev_queue_xmit will queue it)
1309 * and try to sent it later
1310 */
d0cf9c0d
SH		 1311static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1312 struct net_device *dev)
1da177e4
LT		 1313{
1314 int enabled, rc;
6dbc9c89 1315 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1316 unsigned long flags;
1317
1318 spin_lock_irqsave(&this->lock, flags);
1319 enabled = wl3501_block_interrupt(this);
1da177e4
LT		 1320 rc = wl3501_send_pkt(this, skb->data, skb->len);
1321 if (enabled)
1322 wl3501_unblock_interrupt(this);
1323 if (rc) {
4255d411 1324 ++dev->stats.tx_dropped;
1da177e4
LT		 1325 netif_stop_queue(dev);
1326 } else {
4255d411
SH		 1327 ++dev->stats.tx_packets;
1328 dev->stats.tx_bytes += skb->len;
1da177e4
LT		 1329 kfree_skb(skb);
1330
1331 if (this->tx_buffer_cnt < 2)
1332 netif_stop_queue(dev);
1333 }
1334 spin_unlock_irqrestore(&this->lock, flags);
ec634fe3 1335 return NETDEV_TX_OK;
1da177e4
LT		 1336}
1337
1338static int wl3501_open(struct net_device *dev)
1339{
1340 int rc = -ENODEV;
6dbc9c89 1341 struct wl3501_card *this = netdev_priv(dev);
1da177e4 1342 unsigned long flags;
fba395ee 1343 struct pcmcia_device *link;
fd238232 1344 link = this->p_dev;
1da177e4
LT		 1345
1346 spin_lock_irqsave(&this->lock, flags);
9940ec36 1347 if (!pcmcia_dev_present(link))
1da177e4
LT		 1348 goto out;
1349 netif_device_attach(dev);
1350 link->open++;
1351
1352 /* Initial WL3501 firmware */
2caff147 1353 pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1da177e4
LT		 1354 if (wl3501_init_firmware(this))
1355 goto fail;
1356 /* Initial device variables */
1357 this->adhoc_times = 0;
1358 /* Acknowledge Interrupt, for cleaning last state */
1359 wl3501_ack_interrupt(this);
1360
1361 /* Enable interrupt from card after all */
1362 wl3501_unblock_interrupt(this);
1363 wl3501_mgmt_scan(this, 100);
1364 rc = 0;
2caff147 1365 pr_debug("%s: WL3501 opened", dev->name);
1da177e4
LT		 1366 printk(KERN_INFO "%s: Card Name: %s\n"
1367 "%s: Firmware Date: %s\n",
1368 dev->name, this->card_name,
1369 dev->name, this->firmware_date);
1370out:
1371 spin_unlock_irqrestore(&this->lock, flags);
1372 return rc;
1373fail:
1374 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1375 goto out;
1376}
1377
ff1d2767 1378static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1da177e4 1379{
6dbc9c89 1380 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1381 struct iw_statistics *wstats = &this->wstats;
1382 u32 value; /* size checked: it is u32 */
1383
1384 memset(wstats, 0, sizeof(*wstats));
1385 wstats->status = netif_running(dev);
1386 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1387 &value, sizeof(value)))
1388 wstats->discard.code += value;
1389 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1390 &value, sizeof(value)))
1391 wstats->discard.code += value;
1392 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1393 &value, sizeof(value)))
1394 wstats->discard.code += value;
1395 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1396 &value, sizeof(value)))
1397 wstats->discard.retries = value;
1398 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1399 &value, sizeof(value)))
1400 wstats->discard.misc += value;
1401 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1402 &value, sizeof(value)))
1403 wstats->discard.misc += value;
1404 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1405 &value, sizeof(value)))
1406 wstats->discard.misc += value;
1407 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1408 &value, sizeof(value)))
1409 wstats->discard.misc += value;
1410 return wstats;
1411}
1412
1da177e4
LT		 1413/**
1414 * wl3501_detach - deletes a driver "instance"
1415 * @link - FILL_IN
1416 *
1417 * This deletes a driver "instance". The device is de-registered with Card
1418 * Services. If it has been released, all local data structures are freed.
1419 * Otherwise, the structures will be freed when the device is released.
1420 */
fba395ee 1421static void wl3501_detach(struct pcmcia_device *link)
1da177e4 1422{
cc3b4866 1423 struct net_device *dev = link->priv;
1da177e4 1424
1da177e4
LT		 1425 /* If the device is currently configured and active, we won't actually
1426 * delete it yet. Instead, it is marked so that when the release()
1427 * function is called, that will trigger a proper detach(). */
1428
e2d40963
DB		 1429 while (link->open > 0)
1430 wl3501_close(dev);
1da177e4 1431
e2d40963
DB		 1432 netif_device_detach(dev);
1433 wl3501_release(link);
1da177e4 1434
c7c2fa07
DB		 1435 unregister_netdev(dev);
1436
1da177e4
LT		 1437 if (link->priv)
1438 free_netdev(link->priv);
1da177e4
LT		 1439}
1440
1441static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1442 union iwreq_data *wrqu, char *extra)
1443{
1444 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1445 return 0;
1446}
1447
1448static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1449 union iwreq_data *wrqu, char *extra)
1450{
6dbc9c89 1451 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1452 int channel = wrqu->freq.m;
1453 int rc = -EINVAL;
1454
1455 if (iw_valid_channel(this->reg_domain, channel)) {
1456 this->chan = channel;
1457 rc = wl3501_reset(dev);
1458 }
1459 return rc;
1460}
1461
1462static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1463 union iwreq_data *wrqu, char *extra)
1464{
6dbc9c89 1465 struct wl3501_card *this = netdev_priv(dev);
1da177e4 1466
9ee677c2 1467 wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000;
1da177e4
LT		 1468 wrqu->freq.e = 1;
1469 return 0;
1470}
1471
1472static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1473 union iwreq_data *wrqu, char *extra)
1474{
1475 int rc = -EINVAL;
1476
1477 if (wrqu->mode == IW_MODE_INFRA ||
1478 wrqu->mode == IW_MODE_ADHOC ||
1479 wrqu->mode == IW_MODE_AUTO) {
6dbc9c89 1480 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1481
1482 this->net_type = wrqu->mode;
1483 rc = wl3501_reset(dev);
1484 }
1485 return rc;
1486}
1487
1488static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1489 union iwreq_data *wrqu, char *extra)
1490{
6dbc9c89 1491 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1492
1493 wrqu->mode = this->net_type;
1494 return 0;
1495}
1496
1497static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1498 union iwreq_data *wrqu, char *extra)
1499{
6dbc9c89 1500 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1501
1502 wrqu->sens.value = this->rssi;
1503 wrqu->sens.disabled = !wrqu->sens.value;
1504 wrqu->sens.fixed = 1;
1505 return 0;
1506}
1507
1508static int wl3501_get_range(struct net_device *dev,
1509 struct iw_request_info *info,
1510 union iwreq_data *wrqu, char *extra)
1511{
1512 struct iw_range *range = (struct iw_range *)extra;
1513
1514 /* Set the length (very important for backward compatibility) */
1515 wrqu->data.length = sizeof(*range);
1516
1517 /* Set all the info we don't care or don't know about to zero */
1518 memset(range, 0, sizeof(*range));
1519
1520 /* Set the Wireless Extension versions */
1521 range->we_version_compiled = WIRELESS_EXT;
1522 range->we_version_source = 1;
1523 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1524 /* FIXME: study the code to fill in more fields... */
1525 return 0;
1526}
1527
1528static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1529 union iwreq_data *wrqu, char *extra)
1530{
6dbc9c89 1531 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1532 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
1533 int rc = -EINVAL;
1534
1535 /* FIXME: we support other ARPHRDs...*/
1536 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1537 goto out;
1538 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
1539 /* FIXME: rescan? */
1540 } else
1541 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1542 /* FIXME: rescan? deassoc & scan? */
1543 rc = 0;
1544out:
1545 return rc;
1546}
1547
1548static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1549 union iwreq_data *wrqu, char *extra)
1550{
6dbc9c89 1551 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1552
1553 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1554 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1555 return 0;
1556}
1557
1558static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1559 union iwreq_data *wrqu, char *extra)
1560{
1561 /*
1562 * FIXME: trigger scanning with a reset, yes, I'm lazy
1563 */
1564 return wl3501_reset(dev);
1565}
1566
1567static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1568 union iwreq_data *wrqu, char *extra)
1569{
6dbc9c89 1570 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1571 int i;
1572 char *current_ev = extra;
1573 struct iw_event iwe;
1574
1575 for (i = 0; i < this->bss_cnt; ++i) {
1576 iwe.cmd = SIOCGIWAP;
1577 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1578 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
ccc58057 1579 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1580 extra + IW_SCAN_MAX_DATA,
1581 &iwe, IW_EV_ADDR_LEN);
1582 iwe.cmd = SIOCGIWESSID;
1583 iwe.u.data.flags = 1;
1584 iwe.u.data.length = this->bss_set[i].ssid.el.len;
ccc58057 1585 current_ev = iwe_stream_add_point(info, current_ev,
1da177e4
LT		 1586 extra + IW_SCAN_MAX_DATA,
1587 &iwe,
1588 this->bss_set[i].ssid.essid);
1589 iwe.cmd = SIOCGIWMODE;
1590 iwe.u.mode = this->bss_set[i].bss_type;
ccc58057 1591 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1592 extra + IW_SCAN_MAX_DATA,
1593 &iwe, IW_EV_UINT_LEN);
1594 iwe.cmd = SIOCGIWFREQ;
1595 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1596 iwe.u.freq.e = 0;
ccc58057 1597 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1598 extra + IW_SCAN_MAX_DATA,
1599 &iwe, IW_EV_FREQ_LEN);
1600 iwe.cmd = SIOCGIWENCODE;
1601 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1602 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1603 else
1604 iwe.u.data.flags = IW_ENCODE_DISABLED;
1605 iwe.u.data.length = 0;
ccc58057 1606 current_ev = iwe_stream_add_point(info, current_ev,
1da177e4
LT		 1607 extra + IW_SCAN_MAX_DATA,
1608 &iwe, NULL);
1609 }
1610 /* Length of data */
1611 wrqu->data.length = (current_ev - extra);
1612 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1613 return 0;
1614}
1615
1616static int wl3501_set_essid(struct net_device *dev,
1617 struct iw_request_info *info,
1618 union iwreq_data *wrqu, char *extra)
1619{
6dbc9c89 1620 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1621
1622 if (wrqu->data.flags) {
1623 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1624 &this->essid.el,
1625 extra, wrqu->data.length);
1626 } else { /* We accept any ESSID */
1627 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1628 &this->essid.el, "ANY", 3);
1629 }
1630 return wl3501_reset(dev);
1631}
1632
1633static int wl3501_get_essid(struct net_device *dev,
1634 struct iw_request_info *info,
1635 union iwreq_data *wrqu, char *extra)
1636{
6dbc9c89 1637 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1638 unsigned long flags;
1639
1640 spin_lock_irqsave(&this->lock, flags);
1641 wrqu->essid.flags = 1;
1642 wrqu->essid.length = this->essid.el.len;
1643 memcpy(extra, this->essid.essid, this->essid.el.len);
1644 spin_unlock_irqrestore(&this->lock, flags);
1645 return 0;
1646}
1647
1648static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1649 union iwreq_data *wrqu, char *extra)
1650{
6dbc9c89 1651 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1652
1653 if (wrqu->data.length > sizeof(this->nick))
1654 return -E2BIG;
1655 strlcpy(this->nick, extra, wrqu->data.length);
1656 return 0;
1657}
1658
1659static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1660 union iwreq_data *wrqu, char *extra)
1661{
6dbc9c89 1662 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1663
1664 strlcpy(extra, this->nick, 32);
1665 wrqu->data.length = strlen(extra);
1666 return 0;
1667}
1668
1669static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1670 union iwreq_data *wrqu, char *extra)
1671{
1672 /*
1673 * FIXME: have to see from where to get this info, perhaps this card
1674 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1675 * common with the Planet Access Points. -acme
1676 */
1677 wrqu->bitrate.value = 2000000;
1678 wrqu->bitrate.fixed = 1;
1679 return 0;
1680}
1681
1682static int wl3501_get_rts_threshold(struct net_device *dev,
1683 struct iw_request_info *info,
1684 union iwreq_data *wrqu, char *extra)
1685{
1686 u16 threshold; /* size checked: it is u16 */
6dbc9c89 1687 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1688 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1689 &threshold, sizeof(threshold));
1690 if (!rc) {
1691 wrqu->rts.value = threshold;
1692 wrqu->rts.disabled = threshold >= 2347;
1693 wrqu->rts.fixed = 1;
1694 }
1695 return rc;
1696}
1697
1698static int wl3501_get_frag_threshold(struct net_device *dev,
1699 struct iw_request_info *info,
1700 union iwreq_data *wrqu, char *extra)
1701{
1702 u16 threshold; /* size checked: it is u16 */
6dbc9c89 1703 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1704 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1705 &threshold, sizeof(threshold));
1706 if (!rc) {
1707 wrqu->frag.value = threshold;
1708 wrqu->frag.disabled = threshold >= 2346;
1709 wrqu->frag.fixed = 1;
1710 }
1711 return rc;
1712}
1713
1714static int wl3501_get_txpow(struct net_device *dev,
1715 struct iw_request_info *info,
1716 union iwreq_data *wrqu, char *extra)
1717{
1718 u16 txpow;
6dbc9c89 1719 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1720 int rc = wl3501_get_mib_value(this,
1721 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1722 &txpow, sizeof(txpow));
1723 if (!rc) {
1724 wrqu->txpower.value = txpow;
1725 wrqu->txpower.disabled = 0;
1726 /*
1727 * From the MIB values I think this can be configurable,
1728 * as it lists several tx power levels -acme
1729 */
1730 wrqu->txpower.fixed = 0;
1731 wrqu->txpower.flags = IW_TXPOW_MWATT;
1732 }
1733 return rc;
1734}
1735
1736static int wl3501_get_retry(struct net_device *dev,
1737 struct iw_request_info *info,
1738 union iwreq_data *wrqu, char *extra)
1739{
1740 u8 retry; /* size checked: it is u8 */
6dbc9c89 1741 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1742 int rc = wl3501_get_mib_value(this,
1743 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1744 &retry, sizeof(retry));
1745 if (rc)
1746 goto out;
de9621bc
JT		 1747 if (wrqu->retry.flags & IW_RETRY_LONG) {
1748 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1da177e4
LT		 1749 goto set_value;
1750 }
1751 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1752 &retry, sizeof(retry));
1753 if (rc)
1754 goto out;
de9621bc 1755 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1da177e4
LT		 1756set_value:
1757 wrqu->retry.value = retry;
1758 wrqu->retry.disabled = 0;
1759out:
1760 return rc;
1761}
1762
1763static int wl3501_get_encode(struct net_device *dev,
1764 struct iw_request_info *info,
1765 union iwreq_data *wrqu, char *extra)
1766{
1767 u8 implemented, restricted, keys[100], len_keys, tocopy;
6dbc9c89 1768 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1769 int rc = wl3501_get_mib_value(this,
1770 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1771 &implemented, sizeof(implemented));
1772 if (rc)
1773 goto out;
1774 if (!implemented) {
1775 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1776 goto out;
1777 }
1778 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1779 &restricted, sizeof(restricted));
1780 if (rc)
1781 goto out;
1782 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1783 IW_ENCODE_OPEN;
1784 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1785 &len_keys, sizeof(len_keys));
1786 if (rc)
1787 goto out;
1788 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1789 keys, len_keys);
1790 if (rc)
1791 goto out;
1792 tocopy = min_t(u8, len_keys, wrqu->encoding.length);
1793 tocopy = min_t(u8, tocopy, 100);
1794 wrqu->encoding.length = tocopy;
1da177e4
LT		 1795 memcpy(extra, keys, tocopy);
1796out:
1797 return rc;
1798}
1799
1800static int wl3501_get_power(struct net_device *dev,
1801 struct iw_request_info *info,
1802 union iwreq_data *wrqu, char *extra)
1803{
1804 u8 pwr_state;
6dbc9c89 1805 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1806 int rc = wl3501_get_mib_value(this,
1807 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1808 &pwr_state, sizeof(pwr_state));
1809 if (rc)
1810 goto out;
1811 wrqu->power.disabled = !pwr_state;
1812 wrqu->power.flags = IW_POWER_ON;
1813out:
1814 return rc;
1815}
1816
1817static const iw_handler wl3501_handler[] = {
270020e8
JP		 1818 IW_HANDLER(SIOCGIWNAME, wl3501_get_name),
1819 IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq),
1820 IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq),
1821 IW_HANDLER(SIOCSIWMODE, wl3501_set_mode),
1822 IW_HANDLER(SIOCGIWMODE, wl3501_get_mode),
1823 IW_HANDLER(SIOCGIWSENS, wl3501_get_sens),
1824 IW_HANDLER(SIOCGIWRANGE, wl3501_get_range),
1825 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1826 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1827 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1828 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1829 IW_HANDLER(SIOCSIWAP, wl3501_set_wap),
1830 IW_HANDLER(SIOCGIWAP, wl3501_get_wap),
1831 IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan),
1832 IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan),
1833 IW_HANDLER(SIOCSIWESSID, wl3501_set_essid),
1834 IW_HANDLER(SIOCGIWESSID, wl3501_get_essid),
1835 IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick),
1836 IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick),
1837 IW_HANDLER(SIOCGIWRATE, wl3501_get_rate),
1838 IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold),
1839 IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold),
1840 IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow),
1841 IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry),
1842 IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode),
1843 IW_HANDLER(SIOCGIWPOWER, wl3501_get_power),
1da177e4
LT		 1844};
1845
1846static const struct iw_handler_def wl3501_handler_def = {
ff8ac609 1847 .num_standard = ARRAY_SIZE(wl3501_handler),
1da177e4 1848 .standard = (iw_handler *)wl3501_handler,
00b309f5 1849 .get_wireless_stats = wl3501_get_wireless_stats,
1da177e4
LT		 1850};
1851
85a151b7
SH		 1852static const struct net_device_ops wl3501_netdev_ops = {
1853 .ndo_open = wl3501_open,
1854 .ndo_stop = wl3501_close,
1855 .ndo_start_xmit = wl3501_hard_start_xmit,
1856 .ndo_tx_timeout = wl3501_tx_timeout,
1857 .ndo_change_mtu = eth_change_mtu,
1858 .ndo_set_mac_address = eth_mac_addr,
1859 .ndo_validate_addr = eth_validate_addr,
1860};
1861
1da177e4
LT		 1862/**
1863 * wl3501_attach - creates an "instance" of the driver
1864 *
1865 * Creates an "instance" of the driver, allocating local data structures for
1866 * one device. The device is registered with Card Services.
1867 *
1868 * The dev_link structure is initialized, but we don't actually configure the
1869 * card at this point -- we wait until we receive a card insertion event.
1870 */
15b99ac1 1871static int wl3501_probe(struct pcmcia_device *p_dev)
1da177e4 1872{
1da177e4 1873 struct net_device *dev;
00b309f5 1874 struct wl3501_card *this;
1da177e4
LT		 1875
1876 /* The io structure describes IO port mapping */
90abdc3b
DB		 1877 p_dev->resource[0]->end = 16;
1878 p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8;
1da177e4 1879
1da177e4 1880 /* General socket configuration */
fba395ee
DB		 1881 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
1882 p_dev->conf.IntType = INT_MEMORY_AND_IO;
1883 p_dev->conf.ConfigIndex = 1;
1da177e4
LT		 1884
1885 dev = alloc_etherdev(sizeof(struct wl3501_card));
1886 if (!dev)
1887 goto out_link;
4255d411
SH		 1888
1889
85a151b7 1890 dev->netdev_ops = &wl3501_netdev_ops;
1da177e4 1891 dev->watchdog_timeo = 5 * HZ;
4255d411 1892
6dbc9c89 1893 this = netdev_priv(dev);
00b309f5 1894 this->wireless_data.spy_data = &this->spy_data;
fd238232 1895 this->p_dev = p_dev;
00b309f5 1896 dev->wireless_data = &this->wireless_data;
85a151b7 1897 dev->wireless_handlers = &wl3501_handler_def;
1da177e4 1898 netif_stop_queue(dev);
5fa9167a 1899 p_dev->priv = dev;
1da177e4 1900
15b99ac1 1901 return wl3501_config(p_dev);
1da177e4 1902out_link:
f8cfa618 1903 return -ENOMEM;
1da177e4
LT		 1904}
1905
1da177e4
LT		 1906/**
1907 * wl3501_config - configure the PCMCIA socket and make eth device available
1908 * @link - FILL_IN
1909 *
1910 * wl3501_config() is scheduled to run after a CARD_INSERTION event is
1911 * received, to configure the PCMCIA socket, and to make the ethernet device
1912 * available to the system.
1913 */
15b99ac1 1914static int wl3501_config(struct pcmcia_device *link)
1da177e4 1915{
1da177e4 1916 struct net_device *dev = link->priv;
2caff147 1917 int i = 0, j, ret;
1da177e4
LT		 1918 struct wl3501_card *this;
1919
1da177e4
LT		 1920 /* Try allocating IO ports. This tries a few fixed addresses. If you
1921 * want, you can also read the card's config table to pick addresses --
1922 * see the serial driver for an example. */
90abdc3b 1923 link->io_lines = 5;
1da177e4
LT		 1924
1925 for (j = 0x280; j < 0x400; j += 0x20) {
1926 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1927 * 0x200-0x2ff, and so on, because this seems safer */
90abdc3b
DB		 1928 link->resource[0]->start = j;
1929 link->resource[1]->start = link->resource[0]->start + 0x10;
1930 i = pcmcia_request_io(link);
4c89e88b 1931 if (i == 0)
1da177e4
LT		 1932 break;
1933 }
2caff147 1934 if (i != 0)
1da177e4 1935 goto failed;
1da177e4
LT		 1936
1937 /* Now allocate an interrupt line. Note that this does not actually
1938 * assign a handler to the interrupt. */
1939
eb14120f 1940 ret = pcmcia_request_irq(link, wl3501_interrupt);
2caff147
DB		 1941 if (ret)
1942 goto failed;
1da177e4
LT		 1943
1944 /* This actually configures the PCMCIA socket -- setting up the I/O
1945 * windows and the interrupt mapping. */
1946
2caff147
DB		 1947 ret = pcmcia_request_configuration(link, &link->conf);
1948 if (ret)
1949 goto failed;
1da177e4 1950
eb14120f 1951 dev->irq = link->irq;
9a017a91 1952 dev->base_addr = link->resource[0]->start;
dd2e5a15 1953 SET_NETDEV_DEV(dev, &link->dev);
1da177e4
LT		 1954 if (register_netdev(dev)) {
1955 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1956 goto failed;
1957 }
1958
6dbc9c89 1959 this = netdev_priv(dev);
1da177e4
LT		 1960
1961 this->base_addr = dev->base_addr;
1962
1963 if (!wl3501_get_flash_mac_addr(this)) {
1964 printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
1965 dev->name);
c7c2fa07 1966 unregister_netdev(dev);
1da177e4
LT		 1967 goto failed;
1968 }
1da177e4 1969
0795af57 1970 for (i = 0; i < 6; i++)
1da177e4 1971 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
0795af57
JP		 1972
1973 /* print probe information */
1974 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
e174961c 1975 "MAC addr in flash ROM:%pM\n",
0795af57 1976 dev->name, this->base_addr, (int)dev->irq,
e174961c 1977 dev->dev_addr);
1da177e4
LT		 1978 /*
1979 * Initialize card parameters - added by jss
1980 */
1981 this->net_type = IW_MODE_INFRA;
1982 this->bss_cnt = 0;
1983 this->join_sta_bss = 0;
1984 this->adhoc_times = 0;
1985 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
1986 "ANY", 3);
1987 this->card_name[0] = '\0';
1988 this->firmware_date[0] = '\0';
1989 this->rssi = 255;
1990 this->chan = iw_default_channel(this->reg_domain);
1991 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
1992 spin_lock_init(&this->lock);
1993 init_waitqueue_head(&this->wait);
1994 netif_start_queue(dev);
15b99ac1
DB		 1995 return 0;
1996
1da177e4
LT		 1997failed:
1998 wl3501_release(link);
15b99ac1 1999 return -ENODEV;
1da177e4
LT		 2000}
2001
2002/**
2003 * wl3501_release - unregister the net, release PCMCIA configuration
2004 * @arg - link
2005 *
2006 * After a card is removed, wl3501_release() will unregister the net device,
2007 * and release the PCMCIA configuration. If the device is still open, this
2008 * will be postponed until it is closed.
2009 */
fba395ee 2010static void wl3501_release(struct pcmcia_device *link)
1da177e4 2011{
fba395ee 2012 pcmcia_disable_device(link);
1da177e4
LT		 2013}
2014
fba395ee 2015static int wl3501_suspend(struct pcmcia_device *link)
98e4c28b 2016{
98e4c28b
DB		 2017 struct net_device *dev = link->priv;
2018
6dbc9c89 2019 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
e2d40963 2020 if (link->open)
8661bb5b 2021 netif_device_detach(dev);
98e4c28b
DB		 2022
2023 return 0;
2024}
2025
fba395ee 2026static int wl3501_resume(struct pcmcia_device *link)
98e4c28b 2027{
98e4c28b
DB		 2028 struct net_device *dev = link->priv;
2029
6dbc9c89 2030 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
e2d40963 2031 if (link->open) {
8661bb5b
DB		 2032 wl3501_reset(dev);
2033 netif_device_attach(dev);
98e4c28b
DB		 2034 }
2035
2036 return 0;
2037}
2038
2039
77b73f9b
DB		 2040static struct pcmcia_device_id wl3501_ids[] = {
2041 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2042 PCMCIA_DEVICE_NULL
2043};
2044MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2045
1da177e4 2046static struct pcmcia_driver wl3501_driver = {
1e212f36
DB		 2047 .owner = THIS_MODULE,
2048 .drv = {
2049 .name = "wl3501_cs",
1da177e4 2050 },
15b99ac1 2051 .probe = wl3501_probe,
cc3b4866 2052 .remove = wl3501_detach,
77b73f9b 2053 .id_table = wl3501_ids,
98e4c28b
DB		 2054 .suspend = wl3501_suspend,
2055 .resume = wl3501_resume,
1da177e4
LT		 2056};
2057
2058static int __init wl3501_init_module(void)
2059{
2060 return pcmcia_register_driver(&wl3501_driver);
2061}
2062
2063static void __exit wl3501_exit_module(void)
2064{
1da177e4 2065 pcmcia_unregister_driver(&wl3501_driver);
1da177e4
LT		 2066}
2067
2068module_init(wl3501_init_module);
2069module_exit(wl3501_exit_module);
2070
2071MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2072 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2073 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2074MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2075MODULE_LICENSE("GPL");
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