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drivers/net: Kill now superfluous ->last_rx stores.
[linux-2.6/verdex.git] / drivers / net / wireless / wl3501_cs.c
blobc99a1b6b948fca668dfbf31b82ace895bb005de7
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
48 #include <net/iw_handler.h>
49
50 #include <pcmcia/cs_types.h>
51 #include <pcmcia/cs.h>
52 #include <pcmcia/cistpl.h>
53 #include <pcmcia/cisreg.h>
54 #include <pcmcia/ds.h>
55
56 #include <asm/io.h>
57 #include <asm/uaccess.h>
58 #include <asm/system.h>
59
60 #include "wl3501.h"
61
62 #ifndef __i386__
63 #define slow_down_io()
64 #endif
65
66 /* For rough constant delay */
67 #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
68
69 /*
70 * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If you do not
71 * define PCMCIA_DEBUG at all, all the debug code will be left out. If you
72 * compile with PCMCIA_DEBUG=0, the debug code will be present but disabled --
73 * but it can then be enabled for specific modules at load time with a
74 * 'pc_debug=#' option to insmod.
75 */
76 #define PCMCIA_DEBUG 0
77 #ifdef PCMCIA_DEBUG
78 static int pc_debug = PCMCIA_DEBUG;
79 module_param(pc_debug, int, 0);
80 #define dprintk(n, format, args...) \
81 { if (pc_debug > (n)) \
82 printk(KERN_INFO "%s: " format "\n", __func__ , ##args); }
83 #else
84 #define dprintk(n, format, args...)
85 #endif
86
87 #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
88 #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
89 #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
90
91 #define WL3501_RELEASE_TIMEOUT (25 * HZ)
92 #define WL3501_MAX_ADHOC_TRIES 16
93
94 #define WL3501_RESUME 0
95 #define WL3501_SUSPEND 1
96
97 /*
98 * The event() function is this driver's Card Services event handler. It will
99 * be called by Card Services when an appropriate card status event is
100 * received. The config() and release() entry points are used to configure or
101 * release a socket, in response to card insertion and ejection events. They
102 * are invoked from the wl24 event handler.
103 */
104 static int wl3501_config(struct pcmcia_device *link);
105 static void wl3501_release(struct pcmcia_device *link);
106
107 /*
108 * The dev_info variable is the "key" that is used to match up this
109 * device driver with appropriate cards, through the card configuration
110 * database.
111 */
112 static dev_info_t wl3501_dev_info = "wl3501_cs";
113
114 static int wl3501_chan2freq[] = {
115 [0] = 2412, [1] = 2417, [2] = 2422, [3] = 2427, [4] = 2432,
116 [5] = 2437, [6] = 2442, [7] = 2447, [8] = 2452, [9] = 2457,
117 [10] = 2462, [11] = 2467, [12] = 2472, [13] = 2477,
118 };
119
120 static const struct {
121 int reg_domain;
122 int min, max, deflt;
123 } iw_channel_table[] = {
124 {
125 .reg_domain = IW_REG_DOMAIN_FCC,
126 .min = 1,
127 .max = 11,
128 .deflt = 1,
129 },
130 {
131 .reg_domain = IW_REG_DOMAIN_DOC,
132 .min = 1,
133 .max = 11,
134 .deflt = 1,
135 },
136 {
137 .reg_domain = IW_REG_DOMAIN_ETSI,
138 .min = 1,
139 .max = 13,
140 .deflt = 1,
141 },
142 {
143 .reg_domain = IW_REG_DOMAIN_SPAIN,
144 .min = 10,
145 .max = 11,
146 .deflt = 10,
147 },
148 {
149 .reg_domain = IW_REG_DOMAIN_FRANCE,
150 .min = 10,
151 .max = 13,
152 .deflt = 10,
153 },
154 {
155 .reg_domain = IW_REG_DOMAIN_MKK,
156 .min = 14,
157 .max = 14,
158 .deflt = 14,
159 },
160 {
161 .reg_domain = IW_REG_DOMAIN_MKK1,
162 .min = 1,
163 .max = 14,
164 .deflt = 1,
165 },
166 {
167 .reg_domain = IW_REG_DOMAIN_ISRAEL,
168 .min = 3,
169 .max = 9,
170 .deflt = 9,
171 },
172 };
173
174 /**
175 * iw_valid_channel - validate channel in regulatory domain
176 * @reg_comain - regulatory domain
177 * @channel - channel to validate
178 *
179 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
180 */
181 static int iw_valid_channel(int reg_domain, int channel)
182 {
183 int i, rc = 0;
184
185 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
186 if (reg_domain == iw_channel_table[i].reg_domain) {
187 rc = channel >= iw_channel_table[i].min &&
188 channel <= iw_channel_table[i].max;
189 break;
190 }
191 return rc;
192 }
193
194 /**
195 * iw_default_channel - get default channel for a regulatory domain
196 * @reg_comain - regulatory domain
197 *
198 * Returns the default channel for a regulatory domain
199 */
200 static int iw_default_channel(int reg_domain)
201 {
202 int i, rc = 1;
203
204 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
205 if (reg_domain == iw_channel_table[i].reg_domain) {
206 rc = iw_channel_table[i].deflt;
207 break;
208 }
209 return rc;
210 }
211
212 static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
213 struct iw_mgmt_info_element *el,
214 void *value, int len)
215 {
216 el->id = id;
217 el->len = len;
218 memcpy(el->data, value, len);
219 }
220
221 static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
222 struct iw_mgmt_info_element *from)
223 {
224 iw_set_mgmt_info_element(from->id, to, from->data, from->len);
225 }
226
227 static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
228 {
229 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
230 }
231
232 /*
233 * Get Ethernet MAC addresss.
234 *
235 * WARNING: We switch to FPAGE0 and switc back again.
236 * Making sure there is no other WL function beening called by ISR.
237 */
238 static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
239 {
240 int base_addr = this->base_addr;
241
242 /* get MAC addr */
243 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
244 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
245 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
246
247 /* wait for reading EEPROM */
248 WL3501_NOPLOOP(100);
249 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
250 WL3501_NOPLOOP(100);
251 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
252 WL3501_NOPLOOP(100);
253 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
254 WL3501_NOPLOOP(100);
255 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
256 WL3501_NOPLOOP(100);
257 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
258 WL3501_NOPLOOP(100);
259 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
260 WL3501_NOPLOOP(100);
261 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
262 WL3501_NOPLOOP(100);
263 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
264 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
265 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
266 WL3501_NOPLOOP(100);
267 this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
268 WL3501_NOPLOOP(100);
269 this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
270 /* switch to SRAM Page 0 (for safety) */
271 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
272
273 /* The MAC addr should be 00:60:... */
274 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
275 }
276
277 /**
278 * wl3501_set_to_wla - Move 'size' bytes from PC to card
279 * @dest: Card addressing space
280 * @src: PC addressing space
281 * @size: Bytes to move
282 *
283 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
284 */
285 static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
286 int size)
287 {
288 /* switch to SRAM Page 0 */
289 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
290 WL3501_BSS_SPAGE0);
291 /* set LMAL and LMAH */
292 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
293 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
294
295 /* rep out to Port A */
296 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
297 }
298
299 /**
300 * wl3501_get_from_wla - Move 'size' bytes from card to PC
301 * @src: Card addressing space
302 * @dest: PC addressing space
303 * @size: Bytes to move
304 *
305 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
306 */
307 static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
308 int size)
309 {
310 /* switch to SRAM Page 0 */
311 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
312 WL3501_BSS_SPAGE0);
313 /* set LMAL and LMAH */
314 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
315 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
316
317 /* rep get from Port A */
318 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
319 }
320
321 /*
322 * Get/Allocate a free Tx Data Buffer
323 *
324 * *--------------*-----------------*----------------------------------*
325 * | PLCP | MAC Header | DST SRC Data ... |
326 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
327 * *--------------*-----------------*----------------------------------*
328 * \ \- IEEE 802.11 -/ \-------------- len --------------/
329 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
330 *
331 * Return = Postion in Card
332 */
333 static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
334 {
335 u16 next, blk_cnt = 0, zero = 0;
336 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
337 u16 ret = 0;
338
339 if (full_len > this->tx_buffer_cnt * 254)
340 goto out;
341 ret = this->tx_buffer_head;
342 while (full_len) {
343 if (full_len < 254)
344 full_len = 0;
345 else
346 full_len -= 254;
347 wl3501_get_from_wla(this, this->tx_buffer_head, &next,
348 sizeof(next));
349 if (!full_len)
350 wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
351 sizeof(zero));
352 this->tx_buffer_head = next;
353 blk_cnt++;
354 /* if buffer is not enough */
355 if (!next && full_len) {
356 this->tx_buffer_head = ret;
357 ret = 0;
358 goto out;
359 }
360 }
361 this->tx_buffer_cnt -= blk_cnt;
362 out:
363 return ret;
364 }
365
366 /*
367 * Free an allocated Tx Buffer. ptr must be correct position.
368 */
369 static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
370 {
371 /* check if all space is not free */
372 if (!this->tx_buffer_head)
373 this->tx_buffer_head = ptr;
374 else
375 wl3501_set_to_wla(this, this->tx_buffer_tail,
376 &ptr, sizeof(ptr));
377 while (ptr) {
378 u16 next;
379
380 this->tx_buffer_cnt++;
381 wl3501_get_from_wla(this, ptr, &next, sizeof(next));
382 this->tx_buffer_tail = ptr;
383 ptr = next;
384 }
385 }
386
387 static int wl3501_esbq_req_test(struct wl3501_card *this)
388 {
389 u8 tmp;
390
391 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
392 return tmp & 0x80;
393 }
394
395 static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
396 {
397 u16 tmp = 0;
398
399 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
400 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
401 this->esbq_req_head += 4;
402 if (this->esbq_req_head >= this->esbq_req_end)
403 this->esbq_req_head = this->esbq_req_start;
404 }
405
406 static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
407 {
408 int rc = -EIO;
409
410 if (wl3501_esbq_req_test(this)) {
411 u16 ptr = wl3501_get_tx_buffer(this, sig_size);
412 if (ptr) {
413 wl3501_set_to_wla(this, ptr, sig, sig_size);
414 wl3501_esbq_req(this, &ptr);
415 rc = 0;
416 }
417 }
418 return rc;
419 }
420
421 static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
422 void *bf, int size)
423 {
424 struct wl3501_get_req sig = {
425 .sig_id = WL3501_SIG_GET_REQ,
426 .mib_attrib = index,
427 };
428 unsigned long flags;
429 int rc = -EIO;
430
431 spin_lock_irqsave(&this->lock, flags);
432 if (wl3501_esbq_req_test(this)) {
433 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
434 if (ptr) {
435 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
436 wl3501_esbq_req(this, &ptr);
437 this->sig_get_confirm.mib_status = 255;
438 spin_unlock_irqrestore(&this->lock, flags);
439 rc = wait_event_interruptible(this->wait,
440 this->sig_get_confirm.mib_status != 255);
441 if (!rc)
442 memcpy(bf, this->sig_get_confirm.mib_value,
443 size);
444 goto out;
445 }
446 }
447 spin_unlock_irqrestore(&this->lock, flags);
448 out:
449 return rc;
450 }
451
452 static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
453 {
454 struct wl3501_pwr_mgmt_req sig = {
455 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
456 .pwr_save = suspend,
457 .wake_up = !suspend,
458 .receive_dtims = 10,
459 };
460 unsigned long flags;
461 int rc = -EIO;
462
463 spin_lock_irqsave(&this->lock, flags);
464 if (wl3501_esbq_req_test(this)) {
465 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
466 if (ptr) {
467 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
468 wl3501_esbq_req(this, &ptr);
469 this->sig_pwr_mgmt_confirm.status = 255;
470 spin_unlock_irqrestore(&this->lock, flags);
471 rc = wait_event_interruptible(this->wait,
472 this->sig_pwr_mgmt_confirm.status != 255);
473 printk(KERN_INFO "%s: %s status=%d\n", __func__,
474 suspend ? "suspend" : "resume",
475 this->sig_pwr_mgmt_confirm.status);
476 goto out;
477 }
478 }
479 spin_unlock_irqrestore(&this->lock, flags);
480 out:
481 return rc;
482 }
483
484 /**
485 * wl3501_send_pkt - Send a packet.
486 * @this - card
487 *
488 * Send a packet.
489 *
490 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
491 * data[6] - data[11] is Src MAC Addr)
492 * Ref: IEEE 802.11
493 */
494 static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
495 {
496 u16 bf, sig_bf, next, tmplen, pktlen;
497 struct wl3501_md_req sig = {
498 .sig_id = WL3501_SIG_MD_REQ,
499 };
500 u8 *pdata = (char *)data;
501 int rc = -EIO;
502
503 if (wl3501_esbq_req_test(this)) {
504 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
505 rc = -ENOMEM;
506 if (!sig_bf) /* No free buffer available */
507 goto out;
508 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
509 if (!bf) {
510 /* No free buffer available */
511 wl3501_free_tx_buffer(this, sig_bf);
512 goto out;
513 }
514 rc = 0;
515 memcpy(&sig.daddr[0], pdata, 12);
516 pktlen = len - 12;
517 pdata += 12;
518 sig.data = bf;
519 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
520 u8 addr4[ETH_ALEN] = {
521 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
522 };
523
524 wl3501_set_to_wla(this, bf + 2 +
525 offsetof(struct wl3501_tx_hdr, addr4),
526 addr4, sizeof(addr4));
527 sig.size = pktlen + 24 + 4 + 6;
528 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
529 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
530 pktlen -= tmplen;
531 } else {
532 tmplen = pktlen;
533 pktlen = 0;
534 }
535 wl3501_set_to_wla(this,
536 bf + 2 + sizeof(struct wl3501_tx_hdr),
537 pdata, tmplen);
538 pdata += tmplen;
539 wl3501_get_from_wla(this, bf, &next, sizeof(next));
540 bf = next;
541 } else {
542 sig.size = pktlen + 24 + 4 - 2;
543 pdata += 2;
544 pktlen -= 2;
545 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
546 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
547 pktlen -= tmplen;
548 } else {
549 tmplen = pktlen;
550 pktlen = 0;
551 }
552 wl3501_set_to_wla(this, bf + 2 +
553 offsetof(struct wl3501_tx_hdr, addr4),
554 pdata, tmplen);
555 pdata += tmplen;
556 wl3501_get_from_wla(this, bf, &next, sizeof(next));
557 bf = next;
558 }
559 while (pktlen > 0) {
560 if (pktlen > 254) {
561 tmplen = 254;
562 pktlen -= 254;
563 } else {
564 tmplen = pktlen;
565 pktlen = 0;
566 }
567 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
568 pdata += tmplen;
569 wl3501_get_from_wla(this, bf, &next, sizeof(next));
570 bf = next;
571 }
572 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
573 wl3501_esbq_req(this, &sig_bf);
574 }
575 out:
576 return rc;
577 }
578
579 static int wl3501_mgmt_resync(struct wl3501_card *this)
580 {
581 struct wl3501_resync_req sig = {
582 .sig_id = WL3501_SIG_RESYNC_REQ,
583 };
584
585 return wl3501_esbq_exec(this, &sig, sizeof(sig));
586 }
587
588 static inline int wl3501_fw_bss_type(struct wl3501_card *this)
589 {
590 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
591 WL3501_NET_TYPE_ADHOC;
592 }
593
594 static inline int wl3501_fw_cap_info(struct wl3501_card *this)
595 {
596 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
597 WL3501_MGMT_CAPABILITY_IBSS;
598 }
599
600 static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
601 {
602 struct wl3501_scan_req sig = {
603 .sig_id = WL3501_SIG_SCAN_REQ,
604 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
605 .probe_delay = 0x10,
606 .min_chan_time = chan_time,
607 .max_chan_time = chan_time,
608 .bss_type = wl3501_fw_bss_type(this),
609 };
610
611 this->bss_cnt = this->join_sta_bss = 0;
612 return wl3501_esbq_exec(this, &sig, sizeof(sig));
613 }
614
615 static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
616 {
617 struct wl3501_join_req sig = {
618 .sig_id = WL3501_SIG_JOIN_REQ,
619 .timeout = 10,
620 .ds_pset = {
621 .el = {
622 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
623 .len = 1,
624 },
625 .chan = this->chan,
626 },
627 };
628
629 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
630 return wl3501_esbq_exec(this, &sig, sizeof(sig));
631 }
632
633 static int wl3501_mgmt_start(struct wl3501_card *this)
634 {
635 struct wl3501_start_req sig = {
636 .sig_id = WL3501_SIG_START_REQ,
637 .beacon_period = 400,
638 .dtim_period = 1,
639 .ds_pset = {
640 .el = {
641 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
642 .len = 1,
643 },
644 .chan = this->chan,
645 },
646 .bss_basic_rset = {
647 .el = {
648 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
649 .len = 2,
650 },
651 .data_rate_labels = {
652 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
653 IW_MGMT_RATE_LABEL_1MBIT,
654 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
655 IW_MGMT_RATE_LABEL_2MBIT,
656 },
657 },
658 .operational_rset = {
659 .el = {
660 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
661 .len = 2,
662 },
663 .data_rate_labels = {
664 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
665 IW_MGMT_RATE_LABEL_1MBIT,
666 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
667 IW_MGMT_RATE_LABEL_2MBIT,
668 },
669 },
670 .ibss_pset = {
671 .el = {
672 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
673 .len = 2,
674 },
675 .atim_window = 10,
676 },
677 .bss_type = wl3501_fw_bss_type(this),
678 .cap_info = wl3501_fw_cap_info(this),
679 };
680
681 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
682 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
683 return wl3501_esbq_exec(this, &sig, sizeof(sig));
684 }
685
686 static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
687 {
688 u16 i = 0;
689 int matchflag = 0;
690 struct wl3501_scan_confirm sig;
691
692 dprintk(3, "entry");
693 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
694 if (sig.status == WL3501_STATUS_SUCCESS) {
695 dprintk(3, "success");
696 if ((this->net_type == IW_MODE_INFRA &&
697 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
698 (this->net_type == IW_MODE_ADHOC &&
699 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
700 this->net_type == IW_MODE_AUTO) {
701 if (!this->essid.el.len)
702 matchflag = 1;
703 else if (this->essid.el.len == 3 &&
704 !memcmp(this->essid.essid, "ANY", 3))
705 matchflag = 1;
706 else if (this->essid.el.len != sig.ssid.el.len)
707 matchflag = 0;
708 else if (memcmp(this->essid.essid, sig.ssid.essid,
709 this->essid.el.len))
710 matchflag = 0;
711 else
712 matchflag = 1;
713 if (matchflag) {
714 for (i = 0; i < this->bss_cnt; i++) {
715 if (!memcmp(this->bss_set[i].bssid,
716 sig.bssid, ETH_ALEN)) {
717 matchflag = 0;
718 break;
719 }
720 }
721 }
722 if (matchflag && (i < 20)) {
723 memcpy(&this->bss_set[i].beacon_period,
724 &sig.beacon_period, 73);
725 this->bss_cnt++;
726 this->rssi = sig.rssi;
727 }
728 }
729 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
730 dprintk(3, "timeout");
731 this->join_sta_bss = 0;
732 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
733 if (!wl3501_mgmt_join(this, i))
734 break;
735 this->join_sta_bss = i;
736 if (this->join_sta_bss == this->bss_cnt) {
737 if (this->net_type == IW_MODE_INFRA)
738 wl3501_mgmt_scan(this, 100);
739 else {
740 this->adhoc_times++;
741 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
742 wl3501_mgmt_start(this);
743 else
744 wl3501_mgmt_scan(this, 100);
745 }
746 }
747 }
748 }
749
750 /**
751 * wl3501_block_interrupt - Mask interrupt from SUTRO
752 * @this - card
753 *
754 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
755 * Return: 1 if interrupt is originally enabled
756 */
757 static int wl3501_block_interrupt(struct wl3501_card *this)
758 {
759 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
760 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
761 WL3501_GCR_ENECINT));
762
763 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
764 return old & WL3501_GCR_ENECINT;
765 }
766
767 /**
768 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
769 * @this - card
770 *
771 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
772 * Return: 1 if interrupt is originally enabled
773 */
774 static int wl3501_unblock_interrupt(struct wl3501_card *this)
775 {
776 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
777 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
778 WL3501_GCR_ENECINT;
779
780 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
781 return old & WL3501_GCR_ENECINT;
782 }
783
784 /**
785 * wl3501_receive - Receive data from Receive Queue.
786 *
787 * Receive data from Receive Queue.
788 *
789 * @this: card
790 * @bf: address of host
791 * @size: size of buffer.
792 */
793 static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
794 {
795 u16 next_addr, next_addr1;
796 u8 *data = bf + 12;
797
798 size -= 12;
799 wl3501_get_from_wla(this, this->start_seg + 2,
800 &next_addr, sizeof(next_addr));
801 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
802 wl3501_get_from_wla(this,
803 this->start_seg +
804 sizeof(struct wl3501_rx_hdr), data,
805 WL3501_BLKSZ -
806 sizeof(struct wl3501_rx_hdr));
807 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
808 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
809 } else {
810 wl3501_get_from_wla(this,
811 this->start_seg +
812 sizeof(struct wl3501_rx_hdr),
813 data, size);
814 size = 0;
815 }
816 while (size > 0) {
817 if (size > WL3501_BLKSZ - 5) {
818 wl3501_get_from_wla(this, next_addr + 5, data,
819 WL3501_BLKSZ - 5);
820 size -= WL3501_BLKSZ - 5;
821 data += WL3501_BLKSZ - 5;
822 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
823 sizeof(next_addr1));
824 next_addr = next_addr1;
825 } else {
826 wl3501_get_from_wla(this, next_addr + 5, data, size);
827 size = 0;
828 }
829 }
830 return 0;
831 }
832
833 static void wl3501_esbq_req_free(struct wl3501_card *this)
834 {
835 u8 tmp;
836 u16 addr;
837
838 if (this->esbq_req_head == this->esbq_req_tail)
839 goto out;
840 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
841 if (!(tmp & 0x80))
842 goto out;
843 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
844 wl3501_free_tx_buffer(this, addr);
845 this->esbq_req_tail += 4;
846 if (this->esbq_req_tail >= this->esbq_req_end)
847 this->esbq_req_tail = this->esbq_req_start;
848 out:
849 return;
850 }
851
852 static int wl3501_esbq_confirm(struct wl3501_card *this)
853 {
854 u8 tmp;
855
856 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
857 return tmp & 0x80;
858 }
859
860 static void wl3501_online(struct net_device *dev)
861 {
862 struct wl3501_card *this = netdev_priv(dev);
863
864 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
865 dev->name, this->bssid);
866 netif_wake_queue(dev);
867 }
868
869 static void wl3501_esbq_confirm_done(struct wl3501_card *this)
870 {
871 u8 tmp = 0;
872
873 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
874 this->esbq_confirm += 4;
875 if (this->esbq_confirm >= this->esbq_confirm_end)
876 this->esbq_confirm = this->esbq_confirm_start;
877 }
878
879 static int wl3501_mgmt_auth(struct wl3501_card *this)
880 {
881 struct wl3501_auth_req sig = {
882 .sig_id = WL3501_SIG_AUTH_REQ,
883 .type = WL3501_SYS_TYPE_OPEN,
884 .timeout = 1000,
885 };
886
887 dprintk(3, "entry");
888 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
889 return wl3501_esbq_exec(this, &sig, sizeof(sig));
890 }
891
892 static int wl3501_mgmt_association(struct wl3501_card *this)
893 {
894 struct wl3501_assoc_req sig = {
895 .sig_id = WL3501_SIG_ASSOC_REQ,
896 .timeout = 1000,
897 .listen_interval = 5,
898 .cap_info = this->cap_info,
899 };
900
901 dprintk(3, "entry");
902 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
903 return wl3501_esbq_exec(this, &sig, sizeof(sig));
904 }
905
906 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
907 {
908 struct wl3501_card *this = netdev_priv(dev);
909 struct wl3501_join_confirm sig;
910
911 dprintk(3, "entry");
912 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
913 if (sig.status == WL3501_STATUS_SUCCESS) {
914 if (this->net_type == IW_MODE_INFRA) {
915 if (this->join_sta_bss < this->bss_cnt) {
916 const int i = this->join_sta_bss;
917 memcpy(this->bssid,
918 this->bss_set[i].bssid, ETH_ALEN);
919 this->chan = this->bss_set[i].ds_pset.chan;
920 iw_copy_mgmt_info_element(&this->keep_essid.el,
921 &this->bss_set[i].ssid.el);
922 wl3501_mgmt_auth(this);
923 }
924 } else {
925 const int i = this->join_sta_bss;
926
927 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
928 this->chan = this->bss_set[i].ds_pset.chan;
929 iw_copy_mgmt_info_element(&this->keep_essid.el,
930 &this->bss_set[i].ssid.el);
931 wl3501_online(dev);
932 }
933 } else {
934 int i;
935 this->join_sta_bss++;
936 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
937 if (!wl3501_mgmt_join(this, i))
938 break;
939 this->join_sta_bss = i;
940 if (this->join_sta_bss == this->bss_cnt) {
941 if (this->net_type == IW_MODE_INFRA)
942 wl3501_mgmt_scan(this, 100);
943 else {
944 this->adhoc_times++;
945 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
946 wl3501_mgmt_start(this);
947 else
948 wl3501_mgmt_scan(this, 100);
949 }
950 }
951 }
952 }
953
954 static inline void wl3501_alarm_interrupt(struct net_device *dev,
955 struct wl3501_card *this)
956 {
957 if (this->net_type == IW_MODE_INFRA) {
958 printk(KERN_INFO "Wireless LAN offline\n");
959 netif_stop_queue(dev);
960 wl3501_mgmt_resync(this);
961 }
962 }
963
964 static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
965 struct wl3501_card *this,
966 u16 addr)
967 {
968 struct wl3501_md_confirm sig;
969
970 dprintk(3, "entry");
971 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
972 wl3501_free_tx_buffer(this, sig.data);
973 if (netif_queue_stopped(dev))
974 netif_wake_queue(dev);
975 }
976
977 static inline void wl3501_md_ind_interrupt(struct net_device *dev,
978 struct wl3501_card *this, u16 addr)
979 {
980 struct wl3501_md_ind sig;
981 struct sk_buff *skb;
982 u8 rssi, addr4[ETH_ALEN];
983 u16 pkt_len;
984
985 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
986 this->start_seg = sig.data;
987 wl3501_get_from_wla(this,
988 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
989 &rssi, sizeof(rssi));
990 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
991
992 wl3501_get_from_wla(this,
993 sig.data +
994 offsetof(struct wl3501_rx_hdr, addr4),
995 &addr4, sizeof(addr4));
996 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
997 addr4[2] == 0x03 && addr4[4] == 0x00)) {
998 printk(KERN_INFO "Insupported packet type!\n");
999 return;
1000 }
1001 pkt_len = sig.size + 12 - 24 - 4 - 6;
1002
1003 skb = dev_alloc_skb(pkt_len + 5);
1004
1005 if (!skb) {
1006 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
1007 dev->name, pkt_len);
1008 this->stats.rx_dropped++;
1009 } else {
1010 skb->dev = dev;
1011 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
1012 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
1013 wl3501_receive(this, skb->data, pkt_len);
1014 skb_put(skb, pkt_len);
1015 skb->protocol = eth_type_trans(skb, dev);
1016 this->stats.rx_packets++;
1017 this->stats.rx_bytes += skb->len;
1018 netif_rx(skb);
1019 }
1020 }
1021
1022 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
1023 u16 addr, void *sig, int size)
1024 {
1025 dprintk(3, "entry");
1026 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
1027 sizeof(this->sig_get_confirm));
1028 wake_up(&this->wait);
1029 }
1030
1031 static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1032 struct wl3501_card *this,
1033 u16 addr)
1034 {
1035 struct wl3501_start_confirm sig;
1036
1037 dprintk(3, "entry");
1038 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1039 if (sig.status == WL3501_STATUS_SUCCESS)
1040 netif_wake_queue(dev);
1041 }
1042
1043 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1044 u16 addr)
1045 {
1046 struct wl3501_card *this = netdev_priv(dev);
1047 struct wl3501_assoc_confirm sig;
1048
1049 dprintk(3, "entry");
1050 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1051
1052 if (sig.status == WL3501_STATUS_SUCCESS)
1053 wl3501_online(dev);
1054 }
1055
1056 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1057 u16 addr)
1058 {
1059 struct wl3501_auth_confirm sig;
1060
1061 dprintk(3, "entry");
1062 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1063
1064 if (sig.status == WL3501_STATUS_SUCCESS)
1065 wl3501_mgmt_association(this);
1066 else
1067 wl3501_mgmt_resync(this);
1068 }
1069
1070 static inline void wl3501_rx_interrupt(struct net_device *dev)
1071 {
1072 int morepkts;
1073 u16 addr;
1074 u8 sig_id;
1075 struct wl3501_card *this = netdev_priv(dev);
1076
1077 dprintk(3, "entry");
1078 loop:
1079 morepkts = 0;
1080 if (!wl3501_esbq_confirm(this))
1081 goto free;
1082 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1083 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1084
1085 switch (sig_id) {
1086 case WL3501_SIG_DEAUTH_IND:
1087 case WL3501_SIG_DISASSOC_IND:
1088 case WL3501_SIG_ALARM:
1089 wl3501_alarm_interrupt(dev, this);
1090 break;
1091 case WL3501_SIG_MD_CONFIRM:
1092 wl3501_md_confirm_interrupt(dev, this, addr);
1093 break;
1094 case WL3501_SIG_MD_IND:
1095 wl3501_md_ind_interrupt(dev, this, addr);
1096 break;
1097 case WL3501_SIG_GET_CONFIRM:
1098 wl3501_get_confirm_interrupt(this, addr,
1099 &this->sig_get_confirm,
1100 sizeof(this->sig_get_confirm));
1101 break;
1102 case WL3501_SIG_PWR_MGMT_CONFIRM:
1103 wl3501_get_confirm_interrupt(this, addr,
1104 &this->sig_pwr_mgmt_confirm,
1105 sizeof(this->sig_pwr_mgmt_confirm));
1106 break;
1107 case WL3501_SIG_START_CONFIRM:
1108 wl3501_start_confirm_interrupt(dev, this, addr);
1109 break;
1110 case WL3501_SIG_SCAN_CONFIRM:
1111 wl3501_mgmt_scan_confirm(this, addr);
1112 break;
1113 case WL3501_SIG_JOIN_CONFIRM:
1114 wl3501_mgmt_join_confirm(dev, addr);
1115 break;
1116 case WL3501_SIG_ASSOC_CONFIRM:
1117 wl3501_assoc_confirm_interrupt(dev, addr);
1118 break;
1119 case WL3501_SIG_AUTH_CONFIRM:
1120 wl3501_auth_confirm_interrupt(this, addr);
1121 break;
1122 case WL3501_SIG_RESYNC_CONFIRM:
1123 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1124 break;
1125 }
1126 wl3501_esbq_confirm_done(this);
1127 morepkts = 1;
1128 /* free request if necessary */
1129 free:
1130 wl3501_esbq_req_free(this);
1131 if (morepkts)
1132 goto loop;
1133 }
1134
1135 static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1136 {
1137 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1138 }
1139
1140 /**
1141 * wl3501_interrupt - Hardware interrupt from card.
1142 * @irq - Interrupt number
1143 * @dev_id - net_device
1144 *
1145 * We must acknowledge the interrupt as soon as possible, and block the
1146 * interrupt from the same card immediately to prevent re-entry.
1147 *
1148 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1149 * On the other hand, to prevent SUTRO from malfunctioning, we must
1150 * unlock the SUTRO as soon as possible.
1151 */
1152 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1153 {
1154 struct net_device *dev = dev_id;
1155 struct wl3501_card *this;
1156
1157 this = netdev_priv(dev);
1158 spin_lock(&this->lock);
1159 wl3501_ack_interrupt(this);
1160 wl3501_block_interrupt(this);
1161 wl3501_rx_interrupt(dev);
1162 wl3501_unblock_interrupt(this);
1163 spin_unlock(&this->lock);
1164
1165 return IRQ_HANDLED;
1166 }
1167
1168 static int wl3501_reset_board(struct wl3501_card *this)
1169 {
1170 u8 tmp = 0;
1171 int i, rc = 0;
1172
1173 /* Coreset */
1174 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1175 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1176 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1177
1178 /* Reset SRAM 0x480 to zero */
1179 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1180
1181 /* Start up */
1182 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1183
1184 WL3501_NOPLOOP(1024 * 50);
1185
1186 wl3501_unblock_interrupt(this); /* acme: was commented */
1187
1188 /* Polling Self_Test_Status */
1189 for (i = 0; i < 10000; i++) {
1190 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1191
1192 if (tmp == 'W') {
1193 /* firmware complete all test successfully */
1194 tmp = 'A';
1195 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1196 goto out;
1197 }
1198 WL3501_NOPLOOP(10);
1199 }
1200 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1201 rc = -ENODEV;
1202 out:
1203 return rc;
1204 }
1205
1206 static int wl3501_init_firmware(struct wl3501_card *this)
1207 {
1208 u16 ptr, next;
1209 int rc = wl3501_reset_board(this);
1210
1211 if (rc)
1212 goto fail;
1213 this->card_name[0] = '\0';
1214 wl3501_get_from_wla(this, 0x1a00,
1215 this->card_name, sizeof(this->card_name));
1216 this->card_name[sizeof(this->card_name) - 1] = '\0';
1217 this->firmware_date[0] = '\0';
1218 wl3501_get_from_wla(this, 0x1a40,
1219 this->firmware_date, sizeof(this->firmware_date));
1220 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1221 /* Switch to SRAM Page 0 */
1222 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1223 /* Read parameter from card */
1224 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1225 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1226 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1227 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1228 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1229 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1230 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1231 this->esbq_req_end += this->esbq_req_start;
1232 this->esbq_confirm = this->esbq_confirm_start;
1233 this->esbq_confirm_end += this->esbq_confirm_start;
1234 /* Initial Tx Buffer */
1235 this->tx_buffer_cnt = 1;
1236 ptr = this->tx_buffer_head;
1237 next = ptr + WL3501_BLKSZ;
1238 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1239 this->tx_buffer_cnt++;
1240 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1241 ptr = next;
1242 next = ptr + WL3501_BLKSZ;
1243 }
1244 rc = 0;
1245 next = 0;
1246 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1247 this->tx_buffer_tail = ptr;
1248 out:
1249 return rc;
1250 fail:
1251 printk(KERN_WARNING "%s: failed!\n", __func__);
1252 goto out;
1253 }
1254
1255 static int wl3501_close(struct net_device *dev)
1256 {
1257 struct wl3501_card *this = netdev_priv(dev);
1258 int rc = -ENODEV;
1259 unsigned long flags;
1260 struct pcmcia_device *link;
1261 link = this->p_dev;
1262
1263 spin_lock_irqsave(&this->lock, flags);
1264 link->open--;
1265
1266 /* Stop wl3501_hard_start_xmit() from now on */
1267 netif_stop_queue(dev);
1268 wl3501_ack_interrupt(this);
1269
1270 /* Mask interrupts from the SUTRO */
1271 wl3501_block_interrupt(this);
1272
1273 rc = 0;
1274 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1275 spin_unlock_irqrestore(&this->lock, flags);
1276 return rc;
1277 }
1278
1279 /**
1280 * wl3501_reset - Reset the SUTRO.
1281 * @dev - network device
1282 *
1283 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1284 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1285 * is running. It seems to be dangerous.
1286 */
1287 static int wl3501_reset(struct net_device *dev)
1288 {
1289 struct wl3501_card *this = netdev_priv(dev);
1290 int rc = -ENODEV;
1291
1292 wl3501_block_interrupt(this);
1293
1294 if (wl3501_init_firmware(this)) {
1295 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1296 dev->name);
1297 /* Free IRQ, and mark IRQ as unused */
1298 free_irq(dev->irq, dev);
1299 goto out;
1300 }
1301
1302 /*
1303 * Queue has to be started only when the Card is Started
1304 */
1305 netif_stop_queue(dev);
1306 this->adhoc_times = 0;
1307 wl3501_ack_interrupt(this);
1308 wl3501_unblock_interrupt(this);
1309 wl3501_mgmt_scan(this, 100);
1310 dprintk(1, "%s: device reset", dev->name);
1311 rc = 0;
1312 out:
1313 return rc;
1314 }
1315
1316 static void wl3501_tx_timeout(struct net_device *dev)
1317 {
1318 struct wl3501_card *this = netdev_priv(dev);
1319 struct net_device_stats *stats = &this->stats;
1320 unsigned long flags;
1321 int rc;
1322
1323 stats->tx_errors++;
1324 spin_lock_irqsave(&this->lock, flags);
1325 rc = wl3501_reset(dev);
1326 spin_unlock_irqrestore(&this->lock, flags);
1327 if (rc)
1328 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1329 dev->name, rc);
1330 else {
1331 dev->trans_start = jiffies;
1332 netif_wake_queue(dev);
1333 }
1334 }
1335
1336 /*
1337 * Return : 0 - OK
1338 * 1 - Could not transmit (dev_queue_xmit will queue it)
1339 * and try to sent it later
1340 */
1341 static int wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1342 {
1343 int enabled, rc;
1344 struct wl3501_card *this = netdev_priv(dev);
1345 unsigned long flags;
1346
1347 spin_lock_irqsave(&this->lock, flags);
1348 enabled = wl3501_block_interrupt(this);
1349 dev->trans_start = jiffies;
1350 rc = wl3501_send_pkt(this, skb->data, skb->len);
1351 if (enabled)
1352 wl3501_unblock_interrupt(this);
1353 if (rc) {
1354 ++this->stats.tx_dropped;
1355 netif_stop_queue(dev);
1356 } else {
1357 ++this->stats.tx_packets;
1358 this->stats.tx_bytes += skb->len;
1359 kfree_skb(skb);
1360
1361 if (this->tx_buffer_cnt < 2)
1362 netif_stop_queue(dev);
1363 }
1364 spin_unlock_irqrestore(&this->lock, flags);
1365 return rc;
1366 }
1367
1368 static int wl3501_open(struct net_device *dev)
1369 {
1370 int rc = -ENODEV;
1371 struct wl3501_card *this = netdev_priv(dev);
1372 unsigned long flags;
1373 struct pcmcia_device *link;
1374 link = this->p_dev;
1375
1376 spin_lock_irqsave(&this->lock, flags);
1377 if (!pcmcia_dev_present(link))
1378 goto out;
1379 netif_device_attach(dev);
1380 link->open++;
1381
1382 /* Initial WL3501 firmware */
1383 dprintk(1, "%s: Initialize WL3501 firmware...", dev->name);
1384 if (wl3501_init_firmware(this))
1385 goto fail;
1386 /* Initial device variables */
1387 this->adhoc_times = 0;
1388 /* Acknowledge Interrupt, for cleaning last state */
1389 wl3501_ack_interrupt(this);
1390
1391 /* Enable interrupt from card after all */
1392 wl3501_unblock_interrupt(this);
1393 wl3501_mgmt_scan(this, 100);
1394 rc = 0;
1395 dprintk(1, "%s: WL3501 opened", dev->name);
1396 printk(KERN_INFO "%s: Card Name: %s\n"
1397 "%s: Firmware Date: %s\n",
1398 dev->name, this->card_name,
1399 dev->name, this->firmware_date);
1400 out:
1401 spin_unlock_irqrestore(&this->lock, flags);
1402 return rc;
1403 fail:
1404 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1405 goto out;
1406 }
1407
1408 static struct net_device_stats *wl3501_get_stats(struct net_device *dev)
1409 {
1410 struct wl3501_card *this = netdev_priv(dev);
1411
1412 return &this->stats;
1413 }
1414
1415 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1416 {
1417 struct wl3501_card *this = netdev_priv(dev);
1418 struct iw_statistics *wstats = &this->wstats;
1419 u32 value; /* size checked: it is u32 */
1420
1421 memset(wstats, 0, sizeof(*wstats));
1422 wstats->status = netif_running(dev);
1423 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1424 &value, sizeof(value)))
1425 wstats->discard.code += value;
1426 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1427 &value, sizeof(value)))
1428 wstats->discard.code += value;
1429 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1430 &value, sizeof(value)))
1431 wstats->discard.code += value;
1432 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1433 &value, sizeof(value)))
1434 wstats->discard.retries = value;
1435 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1436 &value, sizeof(value)))
1437 wstats->discard.misc += value;
1438 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1439 &value, sizeof(value)))
1440 wstats->discard.misc += value;
1441 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1442 &value, sizeof(value)))
1443 wstats->discard.misc += value;
1444 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1445 &value, sizeof(value)))
1446 wstats->discard.misc += value;
1447 return wstats;
1448 }
1449
1450 static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1451 {
1452 strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver));
1453 }
1454
1455 static const struct ethtool_ops ops = {
1456 .get_drvinfo = wl3501_get_drvinfo
1457 };
1458
1459 /**
1460 * wl3501_detach - deletes a driver "instance"
1461 * @link - FILL_IN
1462 *
1463 * This deletes a driver "instance". The device is de-registered with Card
1464 * Services. If it has been released, all local data structures are freed.
1465 * Otherwise, the structures will be freed when the device is released.
1466 */
1467 static void wl3501_detach(struct pcmcia_device *link)
1468 {
1469 struct net_device *dev = link->priv;
1470
1471 /* If the device is currently configured and active, we won't actually
1472 * delete it yet. Instead, it is marked so that when the release()
1473 * function is called, that will trigger a proper detach(). */
1474
1475 while (link->open > 0)
1476 wl3501_close(dev);
1477
1478 netif_device_detach(dev);
1479 wl3501_release(link);
1480
1481 if (link->priv)
1482 free_netdev(link->priv);
1483
1484 return;
1485 }
1486
1487 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1488 union iwreq_data *wrqu, char *extra)
1489 {
1490 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1491 return 0;
1492 }
1493
1494 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1495 union iwreq_data *wrqu, char *extra)
1496 {
1497 struct wl3501_card *this = netdev_priv(dev);
1498 int channel = wrqu->freq.m;
1499 int rc = -EINVAL;
1500
1501 if (iw_valid_channel(this->reg_domain, channel)) {
1502 this->chan = channel;
1503 rc = wl3501_reset(dev);
1504 }
1505 return rc;
1506 }
1507
1508 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1509 union iwreq_data *wrqu, char *extra)
1510 {
1511 struct wl3501_card *this = netdev_priv(dev);
1512
1513 wrqu->freq.m = wl3501_chan2freq[this->chan - 1] * 100000;
1514 wrqu->freq.e = 1;
1515 return 0;
1516 }
1517
1518 static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1519 union iwreq_data *wrqu, char *extra)
1520 {
1521 int rc = -EINVAL;
1522
1523 if (wrqu->mode == IW_MODE_INFRA ||
1524 wrqu->mode == IW_MODE_ADHOC ||
1525 wrqu->mode == IW_MODE_AUTO) {
1526 struct wl3501_card *this = netdev_priv(dev);
1527
1528 this->net_type = wrqu->mode;
1529 rc = wl3501_reset(dev);
1530 }
1531 return rc;
1532 }
1533
1534 static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1535 union iwreq_data *wrqu, char *extra)
1536 {
1537 struct wl3501_card *this = netdev_priv(dev);
1538
1539 wrqu->mode = this->net_type;
1540 return 0;
1541 }
1542
1543 static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1544 union iwreq_data *wrqu, char *extra)
1545 {
1546 struct wl3501_card *this = netdev_priv(dev);
1547
1548 wrqu->sens.value = this->rssi;
1549 wrqu->sens.disabled = !wrqu->sens.value;
1550 wrqu->sens.fixed = 1;
1551 return 0;
1552 }
1553
1554 static int wl3501_get_range(struct net_device *dev,
1555 struct iw_request_info *info,
1556 union iwreq_data *wrqu, char *extra)
1557 {
1558 struct iw_range *range = (struct iw_range *)extra;
1559
1560 /* Set the length (very important for backward compatibility) */
1561 wrqu->data.length = sizeof(*range);
1562
1563 /* Set all the info we don't care or don't know about to zero */
1564 memset(range, 0, sizeof(*range));
1565
1566 /* Set the Wireless Extension versions */
1567 range->we_version_compiled = WIRELESS_EXT;
1568 range->we_version_source = 1;
1569 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1570 /* FIXME: study the code to fill in more fields... */
1571 return 0;
1572 }
1573
1574 static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1575 union iwreq_data *wrqu, char *extra)
1576 {
1577 struct wl3501_card *this = netdev_priv(dev);
1578 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
1579 int rc = -EINVAL;
1580
1581 /* FIXME: we support other ARPHRDs...*/
1582 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1583 goto out;
1584 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
1585 /* FIXME: rescan? */
1586 } else
1587 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1588 /* FIXME: rescan? deassoc & scan? */
1589 rc = 0;
1590 out:
1591 return rc;
1592 }
1593
1594 static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1595 union iwreq_data *wrqu, char *extra)
1596 {
1597 struct wl3501_card *this = netdev_priv(dev);
1598
1599 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1600 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1601 return 0;
1602 }
1603
1604 static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1605 union iwreq_data *wrqu, char *extra)
1606 {
1607 /*
1608 * FIXME: trigger scanning with a reset, yes, I'm lazy
1609 */
1610 return wl3501_reset(dev);
1611 }
1612
1613 static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1614 union iwreq_data *wrqu, char *extra)
1615 {
1616 struct wl3501_card *this = netdev_priv(dev);
1617 int i;
1618 char *current_ev = extra;
1619 struct iw_event iwe;
1620
1621 for (i = 0; i < this->bss_cnt; ++i) {
1622 iwe.cmd = SIOCGIWAP;
1623 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1624 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
1625 current_ev = iwe_stream_add_event(info, current_ev,
1626 extra + IW_SCAN_MAX_DATA,
1627 &iwe, IW_EV_ADDR_LEN);
1628 iwe.cmd = SIOCGIWESSID;
1629 iwe.u.data.flags = 1;
1630 iwe.u.data.length = this->bss_set[i].ssid.el.len;
1631 current_ev = iwe_stream_add_point(info, current_ev,
1632 extra + IW_SCAN_MAX_DATA,
1633 &iwe,
1634 this->bss_set[i].ssid.essid);
1635 iwe.cmd = SIOCGIWMODE;
1636 iwe.u.mode = this->bss_set[i].bss_type;
1637 current_ev = iwe_stream_add_event(info, current_ev,
1638 extra + IW_SCAN_MAX_DATA,
1639 &iwe, IW_EV_UINT_LEN);
1640 iwe.cmd = SIOCGIWFREQ;
1641 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1642 iwe.u.freq.e = 0;
1643 current_ev = iwe_stream_add_event(info, current_ev,
1644 extra + IW_SCAN_MAX_DATA,
1645 &iwe, IW_EV_FREQ_LEN);
1646 iwe.cmd = SIOCGIWENCODE;
1647 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1648 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1649 else
1650 iwe.u.data.flags = IW_ENCODE_DISABLED;
1651 iwe.u.data.length = 0;
1652 current_ev = iwe_stream_add_point(info, current_ev,
1653 extra + IW_SCAN_MAX_DATA,
1654 &iwe, NULL);
1655 }
1656 /* Length of data */
1657 wrqu->data.length = (current_ev - extra);
1658 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1659 return 0;
1660 }
1661
1662 static int wl3501_set_essid(struct net_device *dev,
1663 struct iw_request_info *info,
1664 union iwreq_data *wrqu, char *extra)
1665 {
1666 struct wl3501_card *this = netdev_priv(dev);
1667
1668 if (wrqu->data.flags) {
1669 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1670 &this->essid.el,
1671 extra, wrqu->data.length);
1672 } else { /* We accept any ESSID */
1673 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1674 &this->essid.el, "ANY", 3);
1675 }
1676 return wl3501_reset(dev);
1677 }
1678
1679 static int wl3501_get_essid(struct net_device *dev,
1680 struct iw_request_info *info,
1681 union iwreq_data *wrqu, char *extra)
1682 {
1683 struct wl3501_card *this = netdev_priv(dev);
1684 unsigned long flags;
1685
1686 spin_lock_irqsave(&this->lock, flags);
1687 wrqu->essid.flags = 1;
1688 wrqu->essid.length = this->essid.el.len;
1689 memcpy(extra, this->essid.essid, this->essid.el.len);
1690 spin_unlock_irqrestore(&this->lock, flags);
1691 return 0;
1692 }
1693
1694 static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1695 union iwreq_data *wrqu, char *extra)
1696 {
1697 struct wl3501_card *this = netdev_priv(dev);
1698
1699 if (wrqu->data.length > sizeof(this->nick))
1700 return -E2BIG;
1701 strlcpy(this->nick, extra, wrqu->data.length);
1702 return 0;
1703 }
1704
1705 static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1706 union iwreq_data *wrqu, char *extra)
1707 {
1708 struct wl3501_card *this = netdev_priv(dev);
1709
1710 strlcpy(extra, this->nick, 32);
1711 wrqu->data.length = strlen(extra);
1712 return 0;
1713 }
1714
1715 static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1716 union iwreq_data *wrqu, char *extra)
1717 {
1718 /*
1719 * FIXME: have to see from where to get this info, perhaps this card
1720 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1721 * common with the Planet Access Points. -acme
1722 */
1723 wrqu->bitrate.value = 2000000;
1724 wrqu->bitrate.fixed = 1;
1725 return 0;
1726 }
1727
1728 static int wl3501_get_rts_threshold(struct net_device *dev,
1729 struct iw_request_info *info,
1730 union iwreq_data *wrqu, char *extra)
1731 {
1732 u16 threshold; /* size checked: it is u16 */
1733 struct wl3501_card *this = netdev_priv(dev);
1734 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1735 &threshold, sizeof(threshold));
1736 if (!rc) {
1737 wrqu->rts.value = threshold;
1738 wrqu->rts.disabled = threshold >= 2347;
1739 wrqu->rts.fixed = 1;
1740 }
1741 return rc;
1742 }
1743
1744 static int wl3501_get_frag_threshold(struct net_device *dev,
1745 struct iw_request_info *info,
1746 union iwreq_data *wrqu, char *extra)
1747 {
1748 u16 threshold; /* size checked: it is u16 */
1749 struct wl3501_card *this = netdev_priv(dev);
1750 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1751 &threshold, sizeof(threshold));
1752 if (!rc) {
1753 wrqu->frag.value = threshold;
1754 wrqu->frag.disabled = threshold >= 2346;
1755 wrqu->frag.fixed = 1;
1756 }
1757 return rc;
1758 }
1759
1760 static int wl3501_get_txpow(struct net_device *dev,
1761 struct iw_request_info *info,
1762 union iwreq_data *wrqu, char *extra)
1763 {
1764 u16 txpow;
1765 struct wl3501_card *this = netdev_priv(dev);
1766 int rc = wl3501_get_mib_value(this,
1767 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1768 &txpow, sizeof(txpow));
1769 if (!rc) {
1770 wrqu->txpower.value = txpow;
1771 wrqu->txpower.disabled = 0;
1772 /*
1773 * From the MIB values I think this can be configurable,
1774 * as it lists several tx power levels -acme
1775 */
1776 wrqu->txpower.fixed = 0;
1777 wrqu->txpower.flags = IW_TXPOW_MWATT;
1778 }
1779 return rc;
1780 }
1781
1782 static int wl3501_get_retry(struct net_device *dev,
1783 struct iw_request_info *info,
1784 union iwreq_data *wrqu, char *extra)
1785 {
1786 u8 retry; /* size checked: it is u8 */
1787 struct wl3501_card *this = netdev_priv(dev);
1788 int rc = wl3501_get_mib_value(this,
1789 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1790 &retry, sizeof(retry));
1791 if (rc)
1792 goto out;
1793 if (wrqu->retry.flags & IW_RETRY_LONG) {
1794 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1795 goto set_value;
1796 }
1797 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1798 &retry, sizeof(retry));
1799 if (rc)
1800 goto out;
1801 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1802 set_value:
1803 wrqu->retry.value = retry;
1804 wrqu->retry.disabled = 0;
1805 out:
1806 return rc;
1807 }
1808
1809 static int wl3501_get_encode(struct net_device *dev,
1810 struct iw_request_info *info,
1811 union iwreq_data *wrqu, char *extra)
1812 {
1813 u8 implemented, restricted, keys[100], len_keys, tocopy;
1814 struct wl3501_card *this = netdev_priv(dev);
1815 int rc = wl3501_get_mib_value(this,
1816 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1817 &implemented, sizeof(implemented));
1818 if (rc)
1819 goto out;
1820 if (!implemented) {
1821 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1822 goto out;
1823 }
1824 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1825 &restricted, sizeof(restricted));
1826 if (rc)
1827 goto out;
1828 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1829 IW_ENCODE_OPEN;
1830 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1831 &len_keys, sizeof(len_keys));
1832 if (rc)
1833 goto out;
1834 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1835 keys, len_keys);
1836 if (rc)
1837 goto out;
1838 tocopy = min_t(u8, len_keys, wrqu->encoding.length);
1839 tocopy = min_t(u8, tocopy, 100);
1840 wrqu->encoding.length = tocopy;
1841 memcpy(extra, keys, tocopy);
1842 out:
1843 return rc;
1844 }
1845
1846 static int wl3501_get_power(struct net_device *dev,
1847 struct iw_request_info *info,
1848 union iwreq_data *wrqu, char *extra)
1849 {
1850 u8 pwr_state;
1851 struct wl3501_card *this = netdev_priv(dev);
1852 int rc = wl3501_get_mib_value(this,
1853 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1854 &pwr_state, sizeof(pwr_state));
1855 if (rc)
1856 goto out;
1857 wrqu->power.disabled = !pwr_state;
1858 wrqu->power.flags = IW_POWER_ON;
1859 out:
1860 return rc;
1861 }
1862
1863 static const iw_handler wl3501_handler[] = {
1864 [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name,
1865 [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq,
1866 [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq,
1867 [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode,
1868 [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode,
1869 [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens,
1870 [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range,
1871 [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy,
1872 [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy,
1873 [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy,
1874 [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy,
1875 [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap,
1876 [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap,
1877 [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan,
1878 [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan,
1879 [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid,
1880 [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid,
1881 [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick,
1882 [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick,
1883 [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate,
1884 [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold,
1885 [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold,
1886 [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow,
1887 [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry,
1888 [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode,
1889 [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power,
1890 };
1891
1892 static const struct iw_handler_def wl3501_handler_def = {
1893 .num_standard = ARRAY_SIZE(wl3501_handler),
1894 .standard = (iw_handler *)wl3501_handler,
1895 .get_wireless_stats = wl3501_get_wireless_stats,
1896 };
1897
1898 /**
1899 * wl3501_attach - creates an "instance" of the driver
1900 *
1901 * Creates an "instance" of the driver, allocating local data structures for
1902 * one device. The device is registered with Card Services.
1903 *
1904 * The dev_link structure is initialized, but we don't actually configure the
1905 * card at this point -- we wait until we receive a card insertion event.
1906 */
1907 static int wl3501_probe(struct pcmcia_device *p_dev)
1908 {
1909 struct net_device *dev;
1910 struct wl3501_card *this;
1911
1912 /* The io structure describes IO port mapping */
1913 p_dev->io.NumPorts1 = 16;
1914 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
1915 p_dev->io.IOAddrLines = 5;
1916
1917 /* Interrupt setup */
1918 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
1919 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
1920 p_dev->irq.Handler = wl3501_interrupt;
1921
1922 /* General socket configuration */
1923 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
1924 p_dev->conf.IntType = INT_MEMORY_AND_IO;
1925 p_dev->conf.ConfigIndex = 1;
1926
1927 dev = alloc_etherdev(sizeof(struct wl3501_card));
1928 if (!dev)
1929 goto out_link;
1930 dev->open = wl3501_open;
1931 dev->stop = wl3501_close;
1932 dev->hard_start_xmit = wl3501_hard_start_xmit;
1933 dev->tx_timeout = wl3501_tx_timeout;
1934 dev->watchdog_timeo = 5 * HZ;
1935 dev->get_stats = wl3501_get_stats;
1936 this = netdev_priv(dev);
1937 this->wireless_data.spy_data = &this->spy_data;
1938 this->p_dev = p_dev;
1939 dev->wireless_data = &this->wireless_data;
1940 dev->wireless_handlers = (struct iw_handler_def *)&wl3501_handler_def;
1941 SET_ETHTOOL_OPS(dev, &ops);
1942 netif_stop_queue(dev);
1943 p_dev->priv = p_dev->irq.Instance = dev;
1944
1945 return wl3501_config(p_dev);
1946 out_link:
1947 return -ENOMEM;
1948 }
1949
1950 #define CS_CHECK(fn, ret) \
1951 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
1952
1953 /**
1954 * wl3501_config - configure the PCMCIA socket and make eth device available
1955 * @link - FILL_IN
1956 *
1957 * wl3501_config() is scheduled to run after a CARD_INSERTION event is
1958 * received, to configure the PCMCIA socket, and to make the ethernet device
1959 * available to the system.
1960 */
1961 static int wl3501_config(struct pcmcia_device *link)
1962 {
1963 struct net_device *dev = link->priv;
1964 int i = 0, j, last_fn, last_ret;
1965 struct wl3501_card *this;
1966
1967 /* Try allocating IO ports. This tries a few fixed addresses. If you
1968 * want, you can also read the card's config table to pick addresses --
1969 * see the serial driver for an example. */
1970
1971 for (j = 0x280; j < 0x400; j += 0x20) {
1972 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1973 * 0x200-0x2ff, and so on, because this seems safer */
1974 link->io.BasePort1 = j;
1975 link->io.BasePort2 = link->io.BasePort1 + 0x10;
1976 i = pcmcia_request_io(link, &link->io);
1977 if (i == 0)
1978 break;
1979 }
1980 if (i != 0) {
1981 cs_error(link, RequestIO, i);
1982 goto failed;
1983 }
1984
1985 /* Now allocate an interrupt line. Note that this does not actually
1986 * assign a handler to the interrupt. */
1987
1988 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
1989
1990 /* This actually configures the PCMCIA socket -- setting up the I/O
1991 * windows and the interrupt mapping. */
1992
1993 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1994
1995 dev->irq = link->irq.AssignedIRQ;
1996 dev->base_addr = link->io.BasePort1;
1997 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1998 if (register_netdev(dev)) {
1999 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
2000 goto failed;
2001 }
2002
2003 this = netdev_priv(dev);
2004 /*
2005 * At this point, the dev_node_t structure(s) should be initialized and
2006 * arranged in a linked list at link->dev_node.
2007 */
2008 link->dev_node = &this->node;
2009
2010 this->base_addr = dev->base_addr;
2011
2012 if (!wl3501_get_flash_mac_addr(this)) {
2013 printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
2014 dev->name);
2015 goto failed;
2016 }
2017 strcpy(this->node.dev_name, dev->name);
2018
2019 for (i = 0; i < 6; i++)
2020 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
2021
2022 /* print probe information */
2023 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
2024 "MAC addr in flash ROM:%pM\n",
2025 dev->name, this->base_addr, (int)dev->irq,
2026 dev->dev_addr);
2027 /*
2028 * Initialize card parameters - added by jss
2029 */
2030 this->net_type = IW_MODE_INFRA;
2031 this->bss_cnt = 0;
2032 this->join_sta_bss = 0;
2033 this->adhoc_times = 0;
2034 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
2035 "ANY", 3);
2036 this->card_name[0] = '\0';
2037 this->firmware_date[0] = '\0';
2038 this->rssi = 255;
2039 this->chan = iw_default_channel(this->reg_domain);
2040 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
2041 spin_lock_init(&this->lock);
2042 init_waitqueue_head(&this->wait);
2043 netif_start_queue(dev);
2044 return 0;
2045
2046 cs_failed:
2047 cs_error(link, last_fn, last_ret);
2048 failed:
2049 wl3501_release(link);
2050 return -ENODEV;
2051 }
2052
2053 /**
2054 * wl3501_release - unregister the net, release PCMCIA configuration
2055 * @arg - link
2056 *
2057 * After a card is removed, wl3501_release() will unregister the net device,
2058 * and release the PCMCIA configuration. If the device is still open, this
2059 * will be postponed until it is closed.
2060 */
2061 static void wl3501_release(struct pcmcia_device *link)
2062 {
2063 struct net_device *dev = link->priv;
2064
2065 /* Unlink the device chain */
2066 if (link->dev_node)
2067 unregister_netdev(dev);
2068
2069 pcmcia_disable_device(link);
2070 }
2071
2072 static int wl3501_suspend(struct pcmcia_device *link)
2073 {
2074 struct net_device *dev = link->priv;
2075
2076 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
2077 if (link->open)
2078 netif_device_detach(dev);
2079
2080 return 0;
2081 }
2082
2083 static int wl3501_resume(struct pcmcia_device *link)
2084 {
2085 struct net_device *dev = link->priv;
2086
2087 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
2088 if (link->open) {
2089 wl3501_reset(dev);
2090 netif_device_attach(dev);
2091 }
2092
2093 return 0;
2094 }
2095
2096
2097 static struct pcmcia_device_id wl3501_ids[] = {
2098 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2099 PCMCIA_DEVICE_NULL
2100 };
2101 MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2102
2103 static struct pcmcia_driver wl3501_driver = {
2104 .owner = THIS_MODULE,
2105 .drv = {
2106 .name = "wl3501_cs",
2107 },
2108 .probe = wl3501_probe,
2109 .remove = wl3501_detach,
2110 .id_table = wl3501_ids,
2111 .suspend = wl3501_suspend,
2112 .resume = wl3501_resume,
2113 };
2114
2115 static int __init wl3501_init_module(void)
2116 {
2117 return pcmcia_register_driver(&wl3501_driver);
2118 }
2119
2120 static void __exit wl3501_exit_module(void)
2121 {
2122 pcmcia_unregister_driver(&wl3501_driver);
2123 }
2124
2125 module_init(wl3501_init_module);
2126 module_exit(wl3501_exit_module);
2127
2128 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2129 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2130 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2131 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2132 MODULE_LICENSE("GPL");
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