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Staging: netwave: delete the driver
[linux/fpc-iii.git] / drivers / net / wireless / wl3501_cs.c
blob7b9621de239f49028bdb938288a8d606fd682a2f
1 /*
2 * WL3501 Wireless LAN PCMCIA Card Driver for Linux
3 * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw
4 * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
5 * Wireless extensions in 2.4 by Gustavo Niemeyer <niemeyer@conectiva.com>
6 *
7 * References used by Fox Chen while writing the original driver for 2.0.30:
8 *
9 * 1. WL24xx packet drivers (tooasm.asm)
10 * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO
11 * 3. IEEE 802.11
12 * 4. Linux network driver (/usr/src/linux/drivers/net)
13 * 5. ISA card driver - wl24.c
14 * 6. Linux PCMCIA skeleton driver - skeleton.c
15 * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c
16 *
17 * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12
18 * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode.
19 * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null
20 * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct
21 * ETHER/IP/UDP/TCP header, and acknowledgement overhead)
22 *
23 * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode,
24 * 173 Kbytes/s in TCP.
25 *
26 * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode
27 * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60)
28 */
29
30 #include <linux/delay.h>
31 #include <linux/types.h>
32 #include <linux/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>
47 #include <linux/ieee80211.h>
48
49 #include <net/iw_handler.h>
50
51 #include <pcmcia/cs_types.h>
52 #include <pcmcia/cs.h>
53 #include <pcmcia/cistpl.h>
54 #include <pcmcia/cisreg.h>
55 #include <pcmcia/ds.h>
56
57 #include <asm/io.h>
58 #include <asm/uaccess.h>
59 #include <asm/system.h>
60
61 #include "wl3501.h"
62
63 #ifndef __i386__
64 #define slow_down_io()
65 #endif
66
67 /* For rough constant delay */
68 #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
69
70
71
72 #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
73 #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
74 #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
75
76 #define WL3501_RELEASE_TIMEOUT (25 * HZ)
77 #define WL3501_MAX_ADHOC_TRIES 16
78
79 #define WL3501_RESUME 0
80 #define WL3501_SUSPEND 1
81
82 /*
83 * The event() function is this driver's Card Services event handler. It will
84 * be called by Card Services when an appropriate card status event is
85 * received. The config() and release() entry points are used to configure or
86 * release a socket, in response to card insertion and ejection events. They
87 * are invoked from the wl24 event handler.
88 */
89 static int wl3501_config(struct pcmcia_device *link);
90 static void wl3501_release(struct pcmcia_device *link);
91
92 /*
93 * The dev_info variable is the "key" that is used to match up this
94 * device driver with appropriate cards, through the card configuration
95 * database.
96 */
97 static dev_info_t wl3501_dev_info = "wl3501_cs";
98
99 static const struct {
100 int reg_domain;
101 int min, max, deflt;
102 } iw_channel_table[] = {
103 {
104 .reg_domain = IW_REG_DOMAIN_FCC,
105 .min = 1,
106 .max = 11,
107 .deflt = 1,
108 },
109 {
110 .reg_domain = IW_REG_DOMAIN_DOC,
111 .min = 1,
112 .max = 11,
113 .deflt = 1,
114 },
115 {
116 .reg_domain = IW_REG_DOMAIN_ETSI,
117 .min = 1,
118 .max = 13,
119 .deflt = 1,
120 },
121 {
122 .reg_domain = IW_REG_DOMAIN_SPAIN,
123 .min = 10,
124 .max = 11,
125 .deflt = 10,
126 },
127 {
128 .reg_domain = IW_REG_DOMAIN_FRANCE,
129 .min = 10,
130 .max = 13,
131 .deflt = 10,
132 },
133 {
134 .reg_domain = IW_REG_DOMAIN_MKK,
135 .min = 14,
136 .max = 14,
137 .deflt = 14,
138 },
139 {
140 .reg_domain = IW_REG_DOMAIN_MKK1,
141 .min = 1,
142 .max = 14,
143 .deflt = 1,
144 },
145 {
146 .reg_domain = IW_REG_DOMAIN_ISRAEL,
147 .min = 3,
148 .max = 9,
149 .deflt = 9,
150 },
151 };
152
153 /**
154 * iw_valid_channel - validate channel in regulatory domain
155 * @reg_comain - regulatory domain
156 * @channel - channel to validate
157 *
158 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
159 */
160 static int iw_valid_channel(int reg_domain, int channel)
161 {
162 int i, rc = 0;
163
164 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
165 if (reg_domain == iw_channel_table[i].reg_domain) {
166 rc = channel >= iw_channel_table[i].min &&
167 channel <= iw_channel_table[i].max;
168 break;
169 }
170 return rc;
171 }
172
173 /**
174 * iw_default_channel - get default channel for a regulatory domain
175 * @reg_comain - regulatory domain
176 *
177 * Returns the default channel for a regulatory domain
178 */
179 static int iw_default_channel(int reg_domain)
180 {
181 int i, rc = 1;
182
183 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
184 if (reg_domain == iw_channel_table[i].reg_domain) {
185 rc = iw_channel_table[i].deflt;
186 break;
187 }
188 return rc;
189 }
190
191 static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
192 struct iw_mgmt_info_element *el,
193 void *value, int len)
194 {
195 el->id = id;
196 el->len = len;
197 memcpy(el->data, value, len);
198 }
199
200 static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
201 struct iw_mgmt_info_element *from)
202 {
203 iw_set_mgmt_info_element(from->id, to, from->data, from->len);
204 }
205
206 static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
207 {
208 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
209 }
210
211 /*
212 * Get Ethernet MAC addresss.
213 *
214 * WARNING: We switch to FPAGE0 and switc back again.
215 * Making sure there is no other WL function beening called by ISR.
216 */
217 static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
218 {
219 int base_addr = this->base_addr;
220
221 /* get MAC addr */
222 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
223 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
224 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
225
226 /* wait for reading EEPROM */
227 WL3501_NOPLOOP(100);
228 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
229 WL3501_NOPLOOP(100);
230 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
231 WL3501_NOPLOOP(100);
232 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
233 WL3501_NOPLOOP(100);
234 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
235 WL3501_NOPLOOP(100);
236 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
237 WL3501_NOPLOOP(100);
238 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
239 WL3501_NOPLOOP(100);
240 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
241 WL3501_NOPLOOP(100);
242 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
243 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
244 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
245 WL3501_NOPLOOP(100);
246 this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
247 WL3501_NOPLOOP(100);
248 this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
249 /* switch to SRAM Page 0 (for safety) */
250 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
251
252 /* The MAC addr should be 00:60:... */
253 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
254 }
255
256 /**
257 * wl3501_set_to_wla - Move 'size' bytes from PC to card
258 * @dest: Card addressing space
259 * @src: PC addressing space
260 * @size: Bytes to move
261 *
262 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
263 */
264 static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
265 int size)
266 {
267 /* switch to SRAM Page 0 */
268 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
269 WL3501_BSS_SPAGE0);
270 /* set LMAL and LMAH */
271 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
272 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
273
274 /* rep out to Port A */
275 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
276 }
277
278 /**
279 * wl3501_get_from_wla - Move 'size' bytes from card to PC
280 * @src: Card addressing space
281 * @dest: PC addressing space
282 * @size: Bytes to move
283 *
284 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
285 */
286 static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
287 int size)
288 {
289 /* switch to SRAM Page 0 */
290 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
291 WL3501_BSS_SPAGE0);
292 /* set LMAL and LMAH */
293 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
294 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
295
296 /* rep get from Port A */
297 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
298 }
299
300 /*
301 * Get/Allocate a free Tx Data Buffer
302 *
303 * *--------------*-----------------*----------------------------------*
304 * | PLCP | MAC Header | DST SRC Data ... |
305 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
306 * *--------------*-----------------*----------------------------------*
307 * \ \- IEEE 802.11 -/ \-------------- len --------------/
308 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
309 *
310 * Return = Postion in Card
311 */
312 static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
313 {
314 u16 next, blk_cnt = 0, zero = 0;
315 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
316 u16 ret = 0;
317
318 if (full_len > this->tx_buffer_cnt * 254)
319 goto out;
320 ret = this->tx_buffer_head;
321 while (full_len) {
322 if (full_len < 254)
323 full_len = 0;
324 else
325 full_len -= 254;
326 wl3501_get_from_wla(this, this->tx_buffer_head, &next,
327 sizeof(next));
328 if (!full_len)
329 wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
330 sizeof(zero));
331 this->tx_buffer_head = next;
332 blk_cnt++;
333 /* if buffer is not enough */
334 if (!next && full_len) {
335 this->tx_buffer_head = ret;
336 ret = 0;
337 goto out;
338 }
339 }
340 this->tx_buffer_cnt -= blk_cnt;
341 out:
342 return ret;
343 }
344
345 /*
346 * Free an allocated Tx Buffer. ptr must be correct position.
347 */
348 static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
349 {
350 /* check if all space is not free */
351 if (!this->tx_buffer_head)
352 this->tx_buffer_head = ptr;
353 else
354 wl3501_set_to_wla(this, this->tx_buffer_tail,
355 &ptr, sizeof(ptr));
356 while (ptr) {
357 u16 next;
358
359 this->tx_buffer_cnt++;
360 wl3501_get_from_wla(this, ptr, &next, sizeof(next));
361 this->tx_buffer_tail = ptr;
362 ptr = next;
363 }
364 }
365
366 static int wl3501_esbq_req_test(struct wl3501_card *this)
367 {
368 u8 tmp = 0;
369
370 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
371 return tmp & 0x80;
372 }
373
374 static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
375 {
376 u16 tmp = 0;
377
378 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
379 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
380 this->esbq_req_head += 4;
381 if (this->esbq_req_head >= this->esbq_req_end)
382 this->esbq_req_head = this->esbq_req_start;
383 }
384
385 static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
386 {
387 int rc = -EIO;
388
389 if (wl3501_esbq_req_test(this)) {
390 u16 ptr = wl3501_get_tx_buffer(this, sig_size);
391 if (ptr) {
392 wl3501_set_to_wla(this, ptr, sig, sig_size);
393 wl3501_esbq_req(this, &ptr);
394 rc = 0;
395 }
396 }
397 return rc;
398 }
399
400 static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
401 void *bf, int size)
402 {
403 struct wl3501_get_req sig = {
404 .sig_id = WL3501_SIG_GET_REQ,
405 .mib_attrib = index,
406 };
407 unsigned long flags;
408 int rc = -EIO;
409
410 spin_lock_irqsave(&this->lock, flags);
411 if (wl3501_esbq_req_test(this)) {
412 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
413 if (ptr) {
414 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
415 wl3501_esbq_req(this, &ptr);
416 this->sig_get_confirm.mib_status = 255;
417 spin_unlock_irqrestore(&this->lock, flags);
418 rc = wait_event_interruptible(this->wait,
419 this->sig_get_confirm.mib_status != 255);
420 if (!rc)
421 memcpy(bf, this->sig_get_confirm.mib_value,
422 size);
423 goto out;
424 }
425 }
426 spin_unlock_irqrestore(&this->lock, flags);
427 out:
428 return rc;
429 }
430
431 static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
432 {
433 struct wl3501_pwr_mgmt_req sig = {
434 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
435 .pwr_save = suspend,
436 .wake_up = !suspend,
437 .receive_dtims = 10,
438 };
439 unsigned long flags;
440 int rc = -EIO;
441
442 spin_lock_irqsave(&this->lock, flags);
443 if (wl3501_esbq_req_test(this)) {
444 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
445 if (ptr) {
446 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
447 wl3501_esbq_req(this, &ptr);
448 this->sig_pwr_mgmt_confirm.status = 255;
449 spin_unlock_irqrestore(&this->lock, flags);
450 rc = wait_event_interruptible(this->wait,
451 this->sig_pwr_mgmt_confirm.status != 255);
452 printk(KERN_INFO "%s: %s status=%d\n", __func__,
453 suspend ? "suspend" : "resume",
454 this->sig_pwr_mgmt_confirm.status);
455 goto out;
456 }
457 }
458 spin_unlock_irqrestore(&this->lock, flags);
459 out:
460 return rc;
461 }
462
463 /**
464 * wl3501_send_pkt - Send a packet.
465 * @this - card
466 *
467 * Send a packet.
468 *
469 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
470 * data[6] - data[11] is Src MAC Addr)
471 * Ref: IEEE 802.11
472 */
473 static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
474 {
475 u16 bf, sig_bf, next, tmplen, pktlen;
476 struct wl3501_md_req sig = {
477 .sig_id = WL3501_SIG_MD_REQ,
478 };
479 u8 *pdata = (char *)data;
480 int rc = -EIO;
481
482 if (wl3501_esbq_req_test(this)) {
483 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
484 rc = -ENOMEM;
485 if (!sig_bf) /* No free buffer available */
486 goto out;
487 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
488 if (!bf) {
489 /* No free buffer available */
490 wl3501_free_tx_buffer(this, sig_bf);
491 goto out;
492 }
493 rc = 0;
494 memcpy(&sig.daddr[0], pdata, 12);
495 pktlen = len - 12;
496 pdata += 12;
497 sig.data = bf;
498 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
499 u8 addr4[ETH_ALEN] = {
500 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
501 };
502
503 wl3501_set_to_wla(this, bf + 2 +
504 offsetof(struct wl3501_tx_hdr, addr4),
505 addr4, sizeof(addr4));
506 sig.size = pktlen + 24 + 4 + 6;
507 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
508 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
509 pktlen -= tmplen;
510 } else {
511 tmplen = pktlen;
512 pktlen = 0;
513 }
514 wl3501_set_to_wla(this,
515 bf + 2 + sizeof(struct wl3501_tx_hdr),
516 pdata, tmplen);
517 pdata += tmplen;
518 wl3501_get_from_wla(this, bf, &next, sizeof(next));
519 bf = next;
520 } else {
521 sig.size = pktlen + 24 + 4 - 2;
522 pdata += 2;
523 pktlen -= 2;
524 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
525 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
526 pktlen -= tmplen;
527 } else {
528 tmplen = pktlen;
529 pktlen = 0;
530 }
531 wl3501_set_to_wla(this, bf + 2 +
532 offsetof(struct wl3501_tx_hdr, addr4),
533 pdata, tmplen);
534 pdata += tmplen;
535 wl3501_get_from_wla(this, bf, &next, sizeof(next));
536 bf = next;
537 }
538 while (pktlen > 0) {
539 if (pktlen > 254) {
540 tmplen = 254;
541 pktlen -= 254;
542 } else {
543 tmplen = pktlen;
544 pktlen = 0;
545 }
546 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
547 pdata += tmplen;
548 wl3501_get_from_wla(this, bf, &next, sizeof(next));
549 bf = next;
550 }
551 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
552 wl3501_esbq_req(this, &sig_bf);
553 }
554 out:
555 return rc;
556 }
557
558 static int wl3501_mgmt_resync(struct wl3501_card *this)
559 {
560 struct wl3501_resync_req sig = {
561 .sig_id = WL3501_SIG_RESYNC_REQ,
562 };
563
564 return wl3501_esbq_exec(this, &sig, sizeof(sig));
565 }
566
567 static inline int wl3501_fw_bss_type(struct wl3501_card *this)
568 {
569 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
570 WL3501_NET_TYPE_ADHOC;
571 }
572
573 static inline int wl3501_fw_cap_info(struct wl3501_card *this)
574 {
575 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
576 WL3501_MGMT_CAPABILITY_IBSS;
577 }
578
579 static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
580 {
581 struct wl3501_scan_req sig = {
582 .sig_id = WL3501_SIG_SCAN_REQ,
583 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
584 .probe_delay = 0x10,
585 .min_chan_time = chan_time,
586 .max_chan_time = chan_time,
587 .bss_type = wl3501_fw_bss_type(this),
588 };
589
590 this->bss_cnt = this->join_sta_bss = 0;
591 return wl3501_esbq_exec(this, &sig, sizeof(sig));
592 }
593
594 static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
595 {
596 struct wl3501_join_req sig = {
597 .sig_id = WL3501_SIG_JOIN_REQ,
598 .timeout = 10,
599 .ds_pset = {
600 .el = {
601 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
602 .len = 1,
603 },
604 .chan = this->chan,
605 },
606 };
607
608 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
609 return wl3501_esbq_exec(this, &sig, sizeof(sig));
610 }
611
612 static int wl3501_mgmt_start(struct wl3501_card *this)
613 {
614 struct wl3501_start_req sig = {
615 .sig_id = WL3501_SIG_START_REQ,
616 .beacon_period = 400,
617 .dtim_period = 1,
618 .ds_pset = {
619 .el = {
620 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
621 .len = 1,
622 },
623 .chan = this->chan,
624 },
625 .bss_basic_rset = {
626 .el = {
627 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
628 .len = 2,
629 },
630 .data_rate_labels = {
631 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
632 IW_MGMT_RATE_LABEL_1MBIT,
633 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
634 IW_MGMT_RATE_LABEL_2MBIT,
635 },
636 },
637 .operational_rset = {
638 .el = {
639 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
640 .len = 2,
641 },
642 .data_rate_labels = {
643 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
644 IW_MGMT_RATE_LABEL_1MBIT,
645 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
646 IW_MGMT_RATE_LABEL_2MBIT,
647 },
648 },
649 .ibss_pset = {
650 .el = {
651 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
652 .len = 2,
653 },
654 .atim_window = 10,
655 },
656 .bss_type = wl3501_fw_bss_type(this),
657 .cap_info = wl3501_fw_cap_info(this),
658 };
659
660 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
661 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
662 return wl3501_esbq_exec(this, &sig, sizeof(sig));
663 }
664
665 static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
666 {
667 u16 i = 0;
668 int matchflag = 0;
669 struct wl3501_scan_confirm sig;
670
671 pr_debug("entry");
672 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
673 if (sig.status == WL3501_STATUS_SUCCESS) {
674 pr_debug("success");
675 if ((this->net_type == IW_MODE_INFRA &&
676 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
677 (this->net_type == IW_MODE_ADHOC &&
678 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
679 this->net_type == IW_MODE_AUTO) {
680 if (!this->essid.el.len)
681 matchflag = 1;
682 else if (this->essid.el.len == 3 &&
683 !memcmp(this->essid.essid, "ANY", 3))
684 matchflag = 1;
685 else if (this->essid.el.len != sig.ssid.el.len)
686 matchflag = 0;
687 else if (memcmp(this->essid.essid, sig.ssid.essid,
688 this->essid.el.len))
689 matchflag = 0;
690 else
691 matchflag = 1;
692 if (matchflag) {
693 for (i = 0; i < this->bss_cnt; i++) {
694 if (!memcmp(this->bss_set[i].bssid,
695 sig.bssid, ETH_ALEN)) {
696 matchflag = 0;
697 break;
698 }
699 }
700 }
701 if (matchflag && (i < 20)) {
702 memcpy(&this->bss_set[i].beacon_period,
703 &sig.beacon_period, 73);
704 this->bss_cnt++;
705 this->rssi = sig.rssi;
706 }
707 }
708 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
709 pr_debug("timeout");
710 this->join_sta_bss = 0;
711 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
712 if (!wl3501_mgmt_join(this, i))
713 break;
714 this->join_sta_bss = i;
715 if (this->join_sta_bss == this->bss_cnt) {
716 if (this->net_type == IW_MODE_INFRA)
717 wl3501_mgmt_scan(this, 100);
718 else {
719 this->adhoc_times++;
720 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
721 wl3501_mgmt_start(this);
722 else
723 wl3501_mgmt_scan(this, 100);
724 }
725 }
726 }
727 }
728
729 /**
730 * wl3501_block_interrupt - Mask interrupt from SUTRO
731 * @this - card
732 *
733 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
734 * Return: 1 if interrupt is originally enabled
735 */
736 static int wl3501_block_interrupt(struct wl3501_card *this)
737 {
738 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
739 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
740 WL3501_GCR_ENECINT));
741
742 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
743 return old & WL3501_GCR_ENECINT;
744 }
745
746 /**
747 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
748 * @this - card
749 *
750 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
751 * Return: 1 if interrupt is originally enabled
752 */
753 static int wl3501_unblock_interrupt(struct wl3501_card *this)
754 {
755 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
756 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
757 WL3501_GCR_ENECINT;
758
759 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
760 return old & WL3501_GCR_ENECINT;
761 }
762
763 /**
764 * wl3501_receive - Receive data from Receive Queue.
765 *
766 * Receive data from Receive Queue.
767 *
768 * @this: card
769 * @bf: address of host
770 * @size: size of buffer.
771 */
772 static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
773 {
774 u16 next_addr, next_addr1;
775 u8 *data = bf + 12;
776
777 size -= 12;
778 wl3501_get_from_wla(this, this->start_seg + 2,
779 &next_addr, sizeof(next_addr));
780 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
781 wl3501_get_from_wla(this,
782 this->start_seg +
783 sizeof(struct wl3501_rx_hdr), data,
784 WL3501_BLKSZ -
785 sizeof(struct wl3501_rx_hdr));
786 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
787 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
788 } else {
789 wl3501_get_from_wla(this,
790 this->start_seg +
791 sizeof(struct wl3501_rx_hdr),
792 data, size);
793 size = 0;
794 }
795 while (size > 0) {
796 if (size > WL3501_BLKSZ - 5) {
797 wl3501_get_from_wla(this, next_addr + 5, data,
798 WL3501_BLKSZ - 5);
799 size -= WL3501_BLKSZ - 5;
800 data += WL3501_BLKSZ - 5;
801 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
802 sizeof(next_addr1));
803 next_addr = next_addr1;
804 } else {
805 wl3501_get_from_wla(this, next_addr + 5, data, size);
806 size = 0;
807 }
808 }
809 return 0;
810 }
811
812 static void wl3501_esbq_req_free(struct wl3501_card *this)
813 {
814 u8 tmp;
815 u16 addr;
816
817 if (this->esbq_req_head == this->esbq_req_tail)
818 goto out;
819 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
820 if (!(tmp & 0x80))
821 goto out;
822 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
823 wl3501_free_tx_buffer(this, addr);
824 this->esbq_req_tail += 4;
825 if (this->esbq_req_tail >= this->esbq_req_end)
826 this->esbq_req_tail = this->esbq_req_start;
827 out:
828 return;
829 }
830
831 static int wl3501_esbq_confirm(struct wl3501_card *this)
832 {
833 u8 tmp;
834
835 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
836 return tmp & 0x80;
837 }
838
839 static void wl3501_online(struct net_device *dev)
840 {
841 struct wl3501_card *this = netdev_priv(dev);
842
843 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
844 dev->name, this->bssid);
845 netif_wake_queue(dev);
846 }
847
848 static void wl3501_esbq_confirm_done(struct wl3501_card *this)
849 {
850 u8 tmp = 0;
851
852 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
853 this->esbq_confirm += 4;
854 if (this->esbq_confirm >= this->esbq_confirm_end)
855 this->esbq_confirm = this->esbq_confirm_start;
856 }
857
858 static int wl3501_mgmt_auth(struct wl3501_card *this)
859 {
860 struct wl3501_auth_req sig = {
861 .sig_id = WL3501_SIG_AUTH_REQ,
862 .type = WL3501_SYS_TYPE_OPEN,
863 .timeout = 1000,
864 };
865
866 pr_debug("entry");
867 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
868 return wl3501_esbq_exec(this, &sig, sizeof(sig));
869 }
870
871 static int wl3501_mgmt_association(struct wl3501_card *this)
872 {
873 struct wl3501_assoc_req sig = {
874 .sig_id = WL3501_SIG_ASSOC_REQ,
875 .timeout = 1000,
876 .listen_interval = 5,
877 .cap_info = this->cap_info,
878 };
879
880 pr_debug("entry");
881 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
882 return wl3501_esbq_exec(this, &sig, sizeof(sig));
883 }
884
885 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
886 {
887 struct wl3501_card *this = netdev_priv(dev);
888 struct wl3501_join_confirm sig;
889
890 pr_debug("entry");
891 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
892 if (sig.status == WL3501_STATUS_SUCCESS) {
893 if (this->net_type == IW_MODE_INFRA) {
894 if (this->join_sta_bss < this->bss_cnt) {
895 const int i = this->join_sta_bss;
896 memcpy(this->bssid,
897 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_mgmt_auth(this);
902 }
903 } else {
904 const int i = this->join_sta_bss;
905
906 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
907 this->chan = this->bss_set[i].ds_pset.chan;
908 iw_copy_mgmt_info_element(&this->keep_essid.el,
909 &this->bss_set[i].ssid.el);
910 wl3501_online(dev);
911 }
912 } else {
913 int i;
914 this->join_sta_bss++;
915 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
916 if (!wl3501_mgmt_join(this, i))
917 break;
918 this->join_sta_bss = i;
919 if (this->join_sta_bss == this->bss_cnt) {
920 if (this->net_type == IW_MODE_INFRA)
921 wl3501_mgmt_scan(this, 100);
922 else {
923 this->adhoc_times++;
924 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
925 wl3501_mgmt_start(this);
926 else
927 wl3501_mgmt_scan(this, 100);
928 }
929 }
930 }
931 }
932
933 static inline void wl3501_alarm_interrupt(struct net_device *dev,
934 struct wl3501_card *this)
935 {
936 if (this->net_type == IW_MODE_INFRA) {
937 printk(KERN_INFO "Wireless LAN offline\n");
938 netif_stop_queue(dev);
939 wl3501_mgmt_resync(this);
940 }
941 }
942
943 static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
944 struct wl3501_card *this,
945 u16 addr)
946 {
947 struct wl3501_md_confirm sig;
948
949 pr_debug("entry");
950 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
951 wl3501_free_tx_buffer(this, sig.data);
952 if (netif_queue_stopped(dev))
953 netif_wake_queue(dev);
954 }
955
956 static inline void wl3501_md_ind_interrupt(struct net_device *dev,
957 struct wl3501_card *this, u16 addr)
958 {
959 struct wl3501_md_ind sig;
960 struct sk_buff *skb;
961 u8 rssi, addr4[ETH_ALEN];
962 u16 pkt_len;
963
964 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
965 this->start_seg = sig.data;
966 wl3501_get_from_wla(this,
967 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
968 &rssi, sizeof(rssi));
969 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
970
971 wl3501_get_from_wla(this,
972 sig.data +
973 offsetof(struct wl3501_rx_hdr, addr4),
974 &addr4, sizeof(addr4));
975 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
976 addr4[2] == 0x03 && addr4[4] == 0x00)) {
977 printk(KERN_INFO "Insupported packet type!\n");
978 return;
979 }
980 pkt_len = sig.size + 12 - 24 - 4 - 6;
981
982 skb = dev_alloc_skb(pkt_len + 5);
983
984 if (!skb) {
985 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
986 dev->name, pkt_len);
987 dev->stats.rx_dropped++;
988 } else {
989 skb->dev = dev;
990 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
991 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
992 wl3501_receive(this, skb->data, pkt_len);
993 skb_put(skb, pkt_len);
994 skb->protocol = eth_type_trans(skb, dev);
995 dev->stats.rx_packets++;
996 dev->stats.rx_bytes += skb->len;
997 netif_rx(skb);
998 }
999 }
1000
1001 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
1002 u16 addr, void *sig, int size)
1003 {
1004 pr_debug("entry");
1005 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
1006 sizeof(this->sig_get_confirm));
1007 wake_up(&this->wait);
1008 }
1009
1010 static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1011 struct wl3501_card *this,
1012 u16 addr)
1013 {
1014 struct wl3501_start_confirm sig;
1015
1016 pr_debug("entry");
1017 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1018 if (sig.status == WL3501_STATUS_SUCCESS)
1019 netif_wake_queue(dev);
1020 }
1021
1022 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1023 u16 addr)
1024 {
1025 struct wl3501_card *this = netdev_priv(dev);
1026 struct wl3501_assoc_confirm sig;
1027
1028 pr_debug("entry");
1029 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1030
1031 if (sig.status == WL3501_STATUS_SUCCESS)
1032 wl3501_online(dev);
1033 }
1034
1035 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1036 u16 addr)
1037 {
1038 struct wl3501_auth_confirm sig;
1039
1040 pr_debug("entry");
1041 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1042
1043 if (sig.status == WL3501_STATUS_SUCCESS)
1044 wl3501_mgmt_association(this);
1045 else
1046 wl3501_mgmt_resync(this);
1047 }
1048
1049 static inline void wl3501_rx_interrupt(struct net_device *dev)
1050 {
1051 int morepkts;
1052 u16 addr;
1053 u8 sig_id;
1054 struct wl3501_card *this = netdev_priv(dev);
1055
1056 pr_debug("entry");
1057 loop:
1058 morepkts = 0;
1059 if (!wl3501_esbq_confirm(this))
1060 goto free;
1061 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1062 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1063
1064 switch (sig_id) {
1065 case WL3501_SIG_DEAUTH_IND:
1066 case WL3501_SIG_DISASSOC_IND:
1067 case WL3501_SIG_ALARM:
1068 wl3501_alarm_interrupt(dev, this);
1069 break;
1070 case WL3501_SIG_MD_CONFIRM:
1071 wl3501_md_confirm_interrupt(dev, this, addr);
1072 break;
1073 case WL3501_SIG_MD_IND:
1074 wl3501_md_ind_interrupt(dev, this, addr);
1075 break;
1076 case WL3501_SIG_GET_CONFIRM:
1077 wl3501_get_confirm_interrupt(this, addr,
1078 &this->sig_get_confirm,
1079 sizeof(this->sig_get_confirm));
1080 break;
1081 case WL3501_SIG_PWR_MGMT_CONFIRM:
1082 wl3501_get_confirm_interrupt(this, addr,
1083 &this->sig_pwr_mgmt_confirm,
1084 sizeof(this->sig_pwr_mgmt_confirm));
1085 break;
1086 case WL3501_SIG_START_CONFIRM:
1087 wl3501_start_confirm_interrupt(dev, this, addr);
1088 break;
1089 case WL3501_SIG_SCAN_CONFIRM:
1090 wl3501_mgmt_scan_confirm(this, addr);
1091 break;
1092 case WL3501_SIG_JOIN_CONFIRM:
1093 wl3501_mgmt_join_confirm(dev, addr);
1094 break;
1095 case WL3501_SIG_ASSOC_CONFIRM:
1096 wl3501_assoc_confirm_interrupt(dev, addr);
1097 break;
1098 case WL3501_SIG_AUTH_CONFIRM:
1099 wl3501_auth_confirm_interrupt(this, addr);
1100 break;
1101 case WL3501_SIG_RESYNC_CONFIRM:
1102 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1103 break;
1104 }
1105 wl3501_esbq_confirm_done(this);
1106 morepkts = 1;
1107 /* free request if necessary */
1108 free:
1109 wl3501_esbq_req_free(this);
1110 if (morepkts)
1111 goto loop;
1112 }
1113
1114 static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1115 {
1116 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1117 }
1118
1119 /**
1120 * wl3501_interrupt - Hardware interrupt from card.
1121 * @irq - Interrupt number
1122 * @dev_id - net_device
1123 *
1124 * We must acknowledge the interrupt as soon as possible, and block the
1125 * interrupt from the same card immediately to prevent re-entry.
1126 *
1127 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1128 * On the other hand, to prevent SUTRO from malfunctioning, we must
1129 * unlock the SUTRO as soon as possible.
1130 */
1131 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1132 {
1133 struct net_device *dev = dev_id;
1134 struct wl3501_card *this;
1135
1136 this = netdev_priv(dev);
1137 spin_lock(&this->lock);
1138 wl3501_ack_interrupt(this);
1139 wl3501_block_interrupt(this);
1140 wl3501_rx_interrupt(dev);
1141 wl3501_unblock_interrupt(this);
1142 spin_unlock(&this->lock);
1143
1144 return IRQ_HANDLED;
1145 }
1146
1147 static int wl3501_reset_board(struct wl3501_card *this)
1148 {
1149 u8 tmp = 0;
1150 int i, rc = 0;
1151
1152 /* Coreset */
1153 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1154 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1155 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1156
1157 /* Reset SRAM 0x480 to zero */
1158 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1159
1160 /* Start up */
1161 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1162
1163 WL3501_NOPLOOP(1024 * 50);
1164
1165 wl3501_unblock_interrupt(this); /* acme: was commented */
1166
1167 /* Polling Self_Test_Status */
1168 for (i = 0; i < 10000; i++) {
1169 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1170
1171 if (tmp == 'W') {
1172 /* firmware complete all test successfully */
1173 tmp = 'A';
1174 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1175 goto out;
1176 }
1177 WL3501_NOPLOOP(10);
1178 }
1179 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1180 rc = -ENODEV;
1181 out:
1182 return rc;
1183 }
1184
1185 static int wl3501_init_firmware(struct wl3501_card *this)
1186 {
1187 u16 ptr, next;
1188 int rc = wl3501_reset_board(this);
1189
1190 if (rc)
1191 goto fail;
1192 this->card_name[0] = '\0';
1193 wl3501_get_from_wla(this, 0x1a00,
1194 this->card_name, sizeof(this->card_name));
1195 this->card_name[sizeof(this->card_name) - 1] = '\0';
1196 this->firmware_date[0] = '\0';
1197 wl3501_get_from_wla(this, 0x1a40,
1198 this->firmware_date, sizeof(this->firmware_date));
1199 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1200 /* Switch to SRAM Page 0 */
1201 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1202 /* Read parameter from card */
1203 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1204 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1205 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1206 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1207 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1208 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1209 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1210 this->esbq_req_end += this->esbq_req_start;
1211 this->esbq_confirm = this->esbq_confirm_start;
1212 this->esbq_confirm_end += this->esbq_confirm_start;
1213 /* Initial Tx Buffer */
1214 this->tx_buffer_cnt = 1;
1215 ptr = this->tx_buffer_head;
1216 next = ptr + WL3501_BLKSZ;
1217 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1218 this->tx_buffer_cnt++;
1219 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1220 ptr = next;
1221 next = ptr + WL3501_BLKSZ;
1222 }
1223 rc = 0;
1224 next = 0;
1225 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1226 this->tx_buffer_tail = ptr;
1227 out:
1228 return rc;
1229 fail:
1230 printk(KERN_WARNING "%s: failed!\n", __func__);
1231 goto out;
1232 }
1233
1234 static int wl3501_close(struct net_device *dev)
1235 {
1236 struct wl3501_card *this = netdev_priv(dev);
1237 int rc = -ENODEV;
1238 unsigned long flags;
1239 struct pcmcia_device *link;
1240 link = this->p_dev;
1241
1242 spin_lock_irqsave(&this->lock, flags);
1243 link->open--;
1244
1245 /* Stop wl3501_hard_start_xmit() from now on */
1246 netif_stop_queue(dev);
1247 wl3501_ack_interrupt(this);
1248
1249 /* Mask interrupts from the SUTRO */
1250 wl3501_block_interrupt(this);
1251
1252 rc = 0;
1253 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1254 spin_unlock_irqrestore(&this->lock, flags);
1255 return rc;
1256 }
1257
1258 /**
1259 * wl3501_reset - Reset the SUTRO.
1260 * @dev - network device
1261 *
1262 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1263 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1264 * is running. It seems to be dangerous.
1265 */
1266 static int wl3501_reset(struct net_device *dev)
1267 {
1268 struct wl3501_card *this = netdev_priv(dev);
1269 int rc = -ENODEV;
1270
1271 wl3501_block_interrupt(this);
1272
1273 if (wl3501_init_firmware(this)) {
1274 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1275 dev->name);
1276 /* Free IRQ, and mark IRQ as unused */
1277 free_irq(dev->irq, dev);
1278 goto out;
1279 }
1280
1281 /*
1282 * Queue has to be started only when the Card is Started
1283 */
1284 netif_stop_queue(dev);
1285 this->adhoc_times = 0;
1286 wl3501_ack_interrupt(this);
1287 wl3501_unblock_interrupt(this);
1288 wl3501_mgmt_scan(this, 100);
1289 pr_debug("%s: device reset", dev->name);
1290 rc = 0;
1291 out:
1292 return rc;
1293 }
1294
1295 static void wl3501_tx_timeout(struct net_device *dev)
1296 {
1297 struct wl3501_card *this = netdev_priv(dev);
1298 struct net_device_stats *stats = &dev->stats;
1299 unsigned long flags;
1300 int rc;
1301
1302 stats->tx_errors++;
1303 spin_lock_irqsave(&this->lock, flags);
1304 rc = wl3501_reset(dev);
1305 spin_unlock_irqrestore(&this->lock, flags);
1306 if (rc)
1307 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1308 dev->name, rc);
1309 else {
1310 dev->trans_start = jiffies;
1311 netif_wake_queue(dev);
1312 }
1313 }
1314
1315 /*
1316 * Return : 0 - OK
1317 * 1 - Could not transmit (dev_queue_xmit will queue it)
1318 * and try to sent it later
1319 */
1320 static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1321 struct net_device *dev)
1322 {
1323 int enabled, rc;
1324 struct wl3501_card *this = netdev_priv(dev);
1325 unsigned long flags;
1326
1327 spin_lock_irqsave(&this->lock, flags);
1328 enabled = wl3501_block_interrupt(this);
1329 dev->trans_start = jiffies;
1330 rc = wl3501_send_pkt(this, skb->data, skb->len);
1331 if (enabled)
1332 wl3501_unblock_interrupt(this);
1333 if (rc) {
1334 ++dev->stats.tx_dropped;
1335 netif_stop_queue(dev);
1336 } else {
1337 ++dev->stats.tx_packets;
1338 dev->stats.tx_bytes += skb->len;
1339 kfree_skb(skb);
1340
1341 if (this->tx_buffer_cnt < 2)
1342 netif_stop_queue(dev);
1343 }
1344 spin_unlock_irqrestore(&this->lock, flags);
1345 return NETDEV_TX_OK;
1346 }
1347
1348 static int wl3501_open(struct net_device *dev)
1349 {
1350 int rc = -ENODEV;
1351 struct wl3501_card *this = netdev_priv(dev);
1352 unsigned long flags;
1353 struct pcmcia_device *link;
1354 link = this->p_dev;
1355
1356 spin_lock_irqsave(&this->lock, flags);
1357 if (!pcmcia_dev_present(link))
1358 goto out;
1359 netif_device_attach(dev);
1360 link->open++;
1361
1362 /* Initial WL3501 firmware */
1363 pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1364 if (wl3501_init_firmware(this))
1365 goto fail;
1366 /* Initial device variables */
1367 this->adhoc_times = 0;
1368 /* Acknowledge Interrupt, for cleaning last state */
1369 wl3501_ack_interrupt(this);
1370
1371 /* Enable interrupt from card after all */
1372 wl3501_unblock_interrupt(this);
1373 wl3501_mgmt_scan(this, 100);
1374 rc = 0;
1375 pr_debug("%s: WL3501 opened", dev->name);
1376 printk(KERN_INFO "%s: Card Name: %s\n"
1377 "%s: Firmware Date: %s\n",
1378 dev->name, this->card_name,
1379 dev->name, this->firmware_date);
1380 out:
1381 spin_unlock_irqrestore(&this->lock, flags);
1382 return rc;
1383 fail:
1384 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1385 goto out;
1386 }
1387
1388 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1389 {
1390 struct wl3501_card *this = netdev_priv(dev);
1391 struct iw_statistics *wstats = &this->wstats;
1392 u32 value; /* size checked: it is u32 */
1393
1394 memset(wstats, 0, sizeof(*wstats));
1395 wstats->status = netif_running(dev);
1396 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1397 &value, sizeof(value)))
1398 wstats->discard.code += value;
1399 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1400 &value, sizeof(value)))
1401 wstats->discard.code += value;
1402 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1403 &value, sizeof(value)))
1404 wstats->discard.code += value;
1405 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1406 &value, sizeof(value)))
1407 wstats->discard.retries = value;
1408 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1409 &value, sizeof(value)))
1410 wstats->discard.misc += value;
1411 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1412 &value, sizeof(value)))
1413 wstats->discard.misc += value;
1414 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1415 &value, sizeof(value)))
1416 wstats->discard.misc += value;
1417 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1418 &value, sizeof(value)))
1419 wstats->discard.misc += value;
1420 return wstats;
1421 }
1422
1423 static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1424 {
1425 strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver));
1426 }
1427
1428 static const struct ethtool_ops ops = {
1429 .get_drvinfo = wl3501_get_drvinfo
1430 };
1431
1432 /**
1433 * wl3501_detach - deletes a driver "instance"
1434 * @link - FILL_IN
1435 *
1436 * This deletes a driver "instance". The device is de-registered with Card
1437 * Services. If it has been released, all local data structures are freed.
1438 * Otherwise, the structures will be freed when the device is released.
1439 */
1440 static void wl3501_detach(struct pcmcia_device *link)
1441 {
1442 struct net_device *dev = link->priv;
1443
1444 /* If the device is currently configured and active, we won't actually
1445 * delete it yet. Instead, it is marked so that when the release()
1446 * function is called, that will trigger a proper detach(). */
1447
1448 while (link->open > 0)
1449 wl3501_close(dev);
1450
1451 netif_device_detach(dev);
1452 wl3501_release(link);
1453
1454 if (link->priv)
1455 free_netdev(link->priv);
1456
1457 return;
1458 }
1459
1460 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1461 union iwreq_data *wrqu, char *extra)
1462 {
1463 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1464 return 0;
1465 }
1466
1467 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1468 union iwreq_data *wrqu, char *extra)
1469 {
1470 struct wl3501_card *this = netdev_priv(dev);
1471 int channel = wrqu->freq.m;
1472 int rc = -EINVAL;
1473
1474 if (iw_valid_channel(this->reg_domain, channel)) {
1475 this->chan = channel;
1476 rc = wl3501_reset(dev);
1477 }
1478 return rc;
1479 }
1480
1481 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1482 union iwreq_data *wrqu, char *extra)
1483 {
1484 struct wl3501_card *this = netdev_priv(dev);
1485
1486 wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000;
1487 wrqu->freq.e = 1;
1488 return 0;
1489 }
1490
1491 static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1492 union iwreq_data *wrqu, char *extra)
1493 {
1494 int rc = -EINVAL;
1495
1496 if (wrqu->mode == IW_MODE_INFRA ||
1497 wrqu->mode == IW_MODE_ADHOC ||
1498 wrqu->mode == IW_MODE_AUTO) {
1499 struct wl3501_card *this = netdev_priv(dev);
1500
1501 this->net_type = wrqu->mode;
1502 rc = wl3501_reset(dev);
1503 }
1504 return rc;
1505 }
1506
1507 static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1508 union iwreq_data *wrqu, char *extra)
1509 {
1510 struct wl3501_card *this = netdev_priv(dev);
1511
1512 wrqu->mode = this->net_type;
1513 return 0;
1514 }
1515
1516 static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1517 union iwreq_data *wrqu, char *extra)
1518 {
1519 struct wl3501_card *this = netdev_priv(dev);
1520
1521 wrqu->sens.value = this->rssi;
1522 wrqu->sens.disabled = !wrqu->sens.value;
1523 wrqu->sens.fixed = 1;
1524 return 0;
1525 }
1526
1527 static int wl3501_get_range(struct net_device *dev,
1528 struct iw_request_info *info,
1529 union iwreq_data *wrqu, char *extra)
1530 {
1531 struct iw_range *range = (struct iw_range *)extra;
1532
1533 /* Set the length (very important for backward compatibility) */
1534 wrqu->data.length = sizeof(*range);
1535
1536 /* Set all the info we don't care or don't know about to zero */
1537 memset(range, 0, sizeof(*range));
1538
1539 /* Set the Wireless Extension versions */
1540 range->we_version_compiled = WIRELESS_EXT;
1541 range->we_version_source = 1;
1542 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1543 /* FIXME: study the code to fill in more fields... */
1544 return 0;
1545 }
1546
1547 static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1548 union iwreq_data *wrqu, char *extra)
1549 {
1550 struct wl3501_card *this = netdev_priv(dev);
1551 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
1552 int rc = -EINVAL;
1553
1554 /* FIXME: we support other ARPHRDs...*/
1555 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1556 goto out;
1557 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
1558 /* FIXME: rescan? */
1559 } else
1560 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1561 /* FIXME: rescan? deassoc & scan? */
1562 rc = 0;
1563 out:
1564 return rc;
1565 }
1566
1567 static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1568 union iwreq_data *wrqu, char *extra)
1569 {
1570 struct wl3501_card *this = netdev_priv(dev);
1571
1572 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1573 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1574 return 0;
1575 }
1576
1577 static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1578 union iwreq_data *wrqu, char *extra)
1579 {
1580 /*
1581 * FIXME: trigger scanning with a reset, yes, I'm lazy
1582 */
1583 return wl3501_reset(dev);
1584 }
1585
1586 static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1587 union iwreq_data *wrqu, char *extra)
1588 {
1589 struct wl3501_card *this = netdev_priv(dev);
1590 int i;
1591 char *current_ev = extra;
1592 struct iw_event iwe;
1593
1594 for (i = 0; i < this->bss_cnt; ++i) {
1595 iwe.cmd = SIOCGIWAP;
1596 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1597 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
1598 current_ev = iwe_stream_add_event(info, current_ev,
1599 extra + IW_SCAN_MAX_DATA,
1600 &iwe, IW_EV_ADDR_LEN);
1601 iwe.cmd = SIOCGIWESSID;
1602 iwe.u.data.flags = 1;
1603 iwe.u.data.length = this->bss_set[i].ssid.el.len;
1604 current_ev = iwe_stream_add_point(info, current_ev,
1605 extra + IW_SCAN_MAX_DATA,
1606 &iwe,
1607 this->bss_set[i].ssid.essid);
1608 iwe.cmd = SIOCGIWMODE;
1609 iwe.u.mode = this->bss_set[i].bss_type;
1610 current_ev = iwe_stream_add_event(info, current_ev,
1611 extra + IW_SCAN_MAX_DATA,
1612 &iwe, IW_EV_UINT_LEN);
1613 iwe.cmd = SIOCGIWFREQ;
1614 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1615 iwe.u.freq.e = 0;
1616 current_ev = iwe_stream_add_event(info, current_ev,
1617 extra + IW_SCAN_MAX_DATA,
1618 &iwe, IW_EV_FREQ_LEN);
1619 iwe.cmd = SIOCGIWENCODE;
1620 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1621 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1622 else
1623 iwe.u.data.flags = IW_ENCODE_DISABLED;
1624 iwe.u.data.length = 0;
1625 current_ev = iwe_stream_add_point(info, current_ev,
1626 extra + IW_SCAN_MAX_DATA,
1627 &iwe, NULL);
1628 }
1629 /* Length of data */
1630 wrqu->data.length = (current_ev - extra);
1631 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1632 return 0;
1633 }
1634
1635 static int wl3501_set_essid(struct net_device *dev,
1636 struct iw_request_info *info,
1637 union iwreq_data *wrqu, char *extra)
1638 {
1639 struct wl3501_card *this = netdev_priv(dev);
1640
1641 if (wrqu->data.flags) {
1642 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1643 &this->essid.el,
1644 extra, wrqu->data.length);
1645 } else { /* We accept any ESSID */
1646 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1647 &this->essid.el, "ANY", 3);
1648 }
1649 return wl3501_reset(dev);
1650 }
1651
1652 static int wl3501_get_essid(struct net_device *dev,
1653 struct iw_request_info *info,
1654 union iwreq_data *wrqu, char *extra)
1655 {
1656 struct wl3501_card *this = netdev_priv(dev);
1657 unsigned long flags;
1658
1659 spin_lock_irqsave(&this->lock, flags);
1660 wrqu->essid.flags = 1;
1661 wrqu->essid.length = this->essid.el.len;
1662 memcpy(extra, this->essid.essid, this->essid.el.len);
1663 spin_unlock_irqrestore(&this->lock, flags);
1664 return 0;
1665 }
1666
1667 static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1668 union iwreq_data *wrqu, char *extra)
1669 {
1670 struct wl3501_card *this = netdev_priv(dev);
1671
1672 if (wrqu->data.length > sizeof(this->nick))
1673 return -E2BIG;
1674 strlcpy(this->nick, extra, wrqu->data.length);
1675 return 0;
1676 }
1677
1678 static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1679 union iwreq_data *wrqu, char *extra)
1680 {
1681 struct wl3501_card *this = netdev_priv(dev);
1682
1683 strlcpy(extra, this->nick, 32);
1684 wrqu->data.length = strlen(extra);
1685 return 0;
1686 }
1687
1688 static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1689 union iwreq_data *wrqu, char *extra)
1690 {
1691 /*
1692 * FIXME: have to see from where to get this info, perhaps this card
1693 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1694 * common with the Planet Access Points. -acme
1695 */
1696 wrqu->bitrate.value = 2000000;
1697 wrqu->bitrate.fixed = 1;
1698 return 0;
1699 }
1700
1701 static int wl3501_get_rts_threshold(struct net_device *dev,
1702 struct iw_request_info *info,
1703 union iwreq_data *wrqu, char *extra)
1704 {
1705 u16 threshold; /* size checked: it is u16 */
1706 struct wl3501_card *this = netdev_priv(dev);
1707 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1708 &threshold, sizeof(threshold));
1709 if (!rc) {
1710 wrqu->rts.value = threshold;
1711 wrqu->rts.disabled = threshold >= 2347;
1712 wrqu->rts.fixed = 1;
1713 }
1714 return rc;
1715 }
1716
1717 static int wl3501_get_frag_threshold(struct net_device *dev,
1718 struct iw_request_info *info,
1719 union iwreq_data *wrqu, char *extra)
1720 {
1721 u16 threshold; /* size checked: it is u16 */
1722 struct wl3501_card *this = netdev_priv(dev);
1723 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1724 &threshold, sizeof(threshold));
1725 if (!rc) {
1726 wrqu->frag.value = threshold;
1727 wrqu->frag.disabled = threshold >= 2346;
1728 wrqu->frag.fixed = 1;
1729 }
1730 return rc;
1731 }
1732
1733 static int wl3501_get_txpow(struct net_device *dev,
1734 struct iw_request_info *info,
1735 union iwreq_data *wrqu, char *extra)
1736 {
1737 u16 txpow;
1738 struct wl3501_card *this = netdev_priv(dev);
1739 int rc = wl3501_get_mib_value(this,
1740 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1741 &txpow, sizeof(txpow));
1742 if (!rc) {
1743 wrqu->txpower.value = txpow;
1744 wrqu->txpower.disabled = 0;
1745 /*
1746 * From the MIB values I think this can be configurable,
1747 * as it lists several tx power levels -acme
1748 */
1749 wrqu->txpower.fixed = 0;
1750 wrqu->txpower.flags = IW_TXPOW_MWATT;
1751 }
1752 return rc;
1753 }
1754
1755 static int wl3501_get_retry(struct net_device *dev,
1756 struct iw_request_info *info,
1757 union iwreq_data *wrqu, char *extra)
1758 {
1759 u8 retry; /* size checked: it is u8 */
1760 struct wl3501_card *this = netdev_priv(dev);
1761 int rc = wl3501_get_mib_value(this,
1762 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1763 &retry, sizeof(retry));
1764 if (rc)
1765 goto out;
1766 if (wrqu->retry.flags & IW_RETRY_LONG) {
1767 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1768 goto set_value;
1769 }
1770 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1771 &retry, sizeof(retry));
1772 if (rc)
1773 goto out;
1774 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1775 set_value:
1776 wrqu->retry.value = retry;
1777 wrqu->retry.disabled = 0;
1778 out:
1779 return rc;
1780 }
1781
1782 static int wl3501_get_encode(struct net_device *dev,
1783 struct iw_request_info *info,
1784 union iwreq_data *wrqu, char *extra)
1785 {
1786 u8 implemented, restricted, keys[100], len_keys, tocopy;
1787 struct wl3501_card *this = netdev_priv(dev);
1788 int rc = wl3501_get_mib_value(this,
1789 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1790 &implemented, sizeof(implemented));
1791 if (rc)
1792 goto out;
1793 if (!implemented) {
1794 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1795 goto out;
1796 }
1797 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1798 &restricted, sizeof(restricted));
1799 if (rc)
1800 goto out;
1801 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1802 IW_ENCODE_OPEN;
1803 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1804 &len_keys, sizeof(len_keys));
1805 if (rc)
1806 goto out;
1807 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1808 keys, len_keys);
1809 if (rc)
1810 goto out;
1811 tocopy = min_t(u8, len_keys, wrqu->encoding.length);
1812 tocopy = min_t(u8, tocopy, 100);
1813 wrqu->encoding.length = tocopy;
1814 memcpy(extra, keys, tocopy);
1815 out:
1816 return rc;
1817 }
1818
1819 static int wl3501_get_power(struct net_device *dev,
1820 struct iw_request_info *info,
1821 union iwreq_data *wrqu, char *extra)
1822 {
1823 u8 pwr_state;
1824 struct wl3501_card *this = netdev_priv(dev);
1825 int rc = wl3501_get_mib_value(this,
1826 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1827 &pwr_state, sizeof(pwr_state));
1828 if (rc)
1829 goto out;
1830 wrqu->power.disabled = !pwr_state;
1831 wrqu->power.flags = IW_POWER_ON;
1832 out:
1833 return rc;
1834 }
1835
1836 static const iw_handler wl3501_handler[] = {
1837 [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name,
1838 [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq,
1839 [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq,
1840 [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode,
1841 [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode,
1842 [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens,
1843 [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range,
1844 [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy,
1845 [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy,
1846 [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy,
1847 [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy,
1848 [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap,
1849 [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap,
1850 [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan,
1851 [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan,
1852 [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid,
1853 [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid,
1854 [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick,
1855 [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick,
1856 [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate,
1857 [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold,
1858 [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold,
1859 [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow,
1860 [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry,
1861 [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode,
1862 [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power,
1863 };
1864
1865 static const struct iw_handler_def wl3501_handler_def = {
1866 .num_standard = ARRAY_SIZE(wl3501_handler),
1867 .standard = (iw_handler *)wl3501_handler,
1868 .get_wireless_stats = wl3501_get_wireless_stats,
1869 };
1870
1871 static const struct net_device_ops wl3501_netdev_ops = {
1872 .ndo_open = wl3501_open,
1873 .ndo_stop = wl3501_close,
1874 .ndo_start_xmit = wl3501_hard_start_xmit,
1875 .ndo_tx_timeout = wl3501_tx_timeout,
1876 .ndo_change_mtu = eth_change_mtu,
1877 .ndo_set_mac_address = eth_mac_addr,
1878 .ndo_validate_addr = eth_validate_addr,
1879 };
1880
1881 /**
1882 * wl3501_attach - creates an "instance" of the driver
1883 *
1884 * Creates an "instance" of the driver, allocating local data structures for
1885 * one device. The device is registered with Card Services.
1886 *
1887 * The dev_link structure is initialized, but we don't actually configure the
1888 * card at this point -- we wait until we receive a card insertion event.
1889 */
1890 static int wl3501_probe(struct pcmcia_device *p_dev)
1891 {
1892 struct net_device *dev;
1893 struct wl3501_card *this;
1894
1895 /* The io structure describes IO port mapping */
1896 p_dev->io.NumPorts1 = 16;
1897 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
1898 p_dev->io.IOAddrLines = 5;
1899
1900 /* Interrupt setup */
1901 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
1902 p_dev->irq.Handler = wl3501_interrupt;
1903
1904 /* General socket configuration */
1905 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
1906 p_dev->conf.IntType = INT_MEMORY_AND_IO;
1907 p_dev->conf.ConfigIndex = 1;
1908
1909 dev = alloc_etherdev(sizeof(struct wl3501_card));
1910 if (!dev)
1911 goto out_link;
1912
1913
1914 dev->netdev_ops = &wl3501_netdev_ops;
1915 dev->watchdog_timeo = 5 * HZ;
1916
1917 this = netdev_priv(dev);
1918 this->wireless_data.spy_data = &this->spy_data;
1919 this->p_dev = p_dev;
1920 dev->wireless_data = &this->wireless_data;
1921 dev->wireless_handlers = &wl3501_handler_def;
1922 SET_ETHTOOL_OPS(dev, &ops);
1923 netif_stop_queue(dev);
1924 p_dev->priv = dev;
1925
1926 return wl3501_config(p_dev);
1927 out_link:
1928 return -ENOMEM;
1929 }
1930
1931 /**
1932 * wl3501_config - configure the PCMCIA socket and make eth device available
1933 * @link - FILL_IN
1934 *
1935 * wl3501_config() is scheduled to run after a CARD_INSERTION event is
1936 * received, to configure the PCMCIA socket, and to make the ethernet device
1937 * available to the system.
1938 */
1939 static int wl3501_config(struct pcmcia_device *link)
1940 {
1941 struct net_device *dev = link->priv;
1942 int i = 0, j, ret;
1943 struct wl3501_card *this;
1944
1945 /* Try allocating IO ports. This tries a few fixed addresses. If you
1946 * want, you can also read the card's config table to pick addresses --
1947 * see the serial driver for an example. */
1948
1949 for (j = 0x280; j < 0x400; j += 0x20) {
1950 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1951 * 0x200-0x2ff, and so on, because this seems safer */
1952 link->io.BasePort1 = j;
1953 link->io.BasePort2 = link->io.BasePort1 + 0x10;
1954 i = pcmcia_request_io(link, &link->io);
1955 if (i == 0)
1956 break;
1957 }
1958 if (i != 0)
1959 goto failed;
1960
1961 /* Now allocate an interrupt line. Note that this does not actually
1962 * assign a handler to the interrupt. */
1963
1964 ret = pcmcia_request_irq(link, &link->irq);
1965 if (ret)
1966 goto failed;
1967
1968 /* This actually configures the PCMCIA socket -- setting up the I/O
1969 * windows and the interrupt mapping. */
1970
1971 ret = pcmcia_request_configuration(link, &link->conf);
1972 if (ret)
1973 goto failed;
1974
1975 dev->irq = link->irq.AssignedIRQ;
1976 dev->base_addr = link->io.BasePort1;
1977 SET_NETDEV_DEV(dev, &link->dev);
1978 if (register_netdev(dev)) {
1979 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1980 goto failed;
1981 }
1982
1983 this = netdev_priv(dev);
1984 /*
1985 * At this point, the dev_node_t structure(s) should be initialized and
1986 * arranged in a linked list at link->dev_node.
1987 */
1988 link->dev_node = &this->node;
1989
1990 this->base_addr = dev->base_addr;
1991
1992 if (!wl3501_get_flash_mac_addr(this)) {
1993 printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
1994 dev->name);
1995 goto failed;
1996 }
1997 strcpy(this->node.dev_name, dev->name);
1998
1999 for (i = 0; i < 6; i++)
2000 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
2001
2002 /* print probe information */
2003 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
2004 "MAC addr in flash ROM:%pM\n",
2005 dev->name, this->base_addr, (int)dev->irq,
2006 dev->dev_addr);
2007 /*
2008 * Initialize card parameters - added by jss
2009 */
2010 this->net_type = IW_MODE_INFRA;
2011 this->bss_cnt = 0;
2012 this->join_sta_bss = 0;
2013 this->adhoc_times = 0;
2014 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
2015 "ANY", 3);
2016 this->card_name[0] = '\0';
2017 this->firmware_date[0] = '\0';
2018 this->rssi = 255;
2019 this->chan = iw_default_channel(this->reg_domain);
2020 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
2021 spin_lock_init(&this->lock);
2022 init_waitqueue_head(&this->wait);
2023 netif_start_queue(dev);
2024 return 0;
2025
2026 failed:
2027 wl3501_release(link);
2028 return -ENODEV;
2029 }
2030
2031 /**
2032 * wl3501_release - unregister the net, release PCMCIA configuration
2033 * @arg - link
2034 *
2035 * After a card is removed, wl3501_release() will unregister the net device,
2036 * and release the PCMCIA configuration. If the device is still open, this
2037 * will be postponed until it is closed.
2038 */
2039 static void wl3501_release(struct pcmcia_device *link)
2040 {
2041 struct net_device *dev = link->priv;
2042
2043 /* Unlink the device chain */
2044 if (link->dev_node)
2045 unregister_netdev(dev);
2046
2047 pcmcia_disable_device(link);
2048 }
2049
2050 static int wl3501_suspend(struct pcmcia_device *link)
2051 {
2052 struct net_device *dev = link->priv;
2053
2054 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
2055 if (link->open)
2056 netif_device_detach(dev);
2057
2058 return 0;
2059 }
2060
2061 static int wl3501_resume(struct pcmcia_device *link)
2062 {
2063 struct net_device *dev = link->priv;
2064
2065 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
2066 if (link->open) {
2067 wl3501_reset(dev);
2068 netif_device_attach(dev);
2069 }
2070
2071 return 0;
2072 }
2073
2074
2075 static struct pcmcia_device_id wl3501_ids[] = {
2076 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2077 PCMCIA_DEVICE_NULL
2078 };
2079 MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2080
2081 static struct pcmcia_driver wl3501_driver = {
2082 .owner = THIS_MODULE,
2083 .drv = {
2084 .name = "wl3501_cs",
2085 },
2086 .probe = wl3501_probe,
2087 .remove = wl3501_detach,
2088 .id_table = wl3501_ids,
2089 .suspend = wl3501_suspend,
2090 .resume = wl3501_resume,
2091 };
2092
2093 static int __init wl3501_init_module(void)
2094 {
2095 return pcmcia_register_driver(&wl3501_driver);
2096 }
2097
2098 static void __exit wl3501_exit_module(void)
2099 {
2100 pcmcia_unregister_driver(&wl3501_driver);
2101 }
2102
2103 module_init(wl3501_init_module);
2104 module_exit(wl3501_exit_module);
2105
2106 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2107 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2108 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2109 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2110 MODULE_LICENSE("GPL");
Linux with added FPC-III support