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allow coexistance of N build and AC build.
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / net / wireless / wl3501_cs.c
blobce9230b2f630e518870c4210a987ce61f4d2c03c
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", __FUNCTION__ , ##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", __FUNCTION__,
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 = dev->priv;
863
864 printk(KERN_INFO "%s: Wireless LAN online. BSSID: "
865 "%02X %02X %02X %02X %02X %02X\n", dev->name,
866 this->bssid[0], this->bssid[1], this->bssid[2],
867 this->bssid[3], this->bssid[4], this->bssid[5]);
868 netif_wake_queue(dev);
869 }
870
871 static void wl3501_esbq_confirm_done(struct wl3501_card *this)
872 {
873 u8 tmp = 0;
874
875 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
876 this->esbq_confirm += 4;
877 if (this->esbq_confirm >= this->esbq_confirm_end)
878 this->esbq_confirm = this->esbq_confirm_start;
879 }
880
881 static int wl3501_mgmt_auth(struct wl3501_card *this)
882 {
883 struct wl3501_auth_req sig = {
884 .sig_id = WL3501_SIG_AUTH_REQ,
885 .type = WL3501_SYS_TYPE_OPEN,
886 .timeout = 1000,
887 };
888
889 dprintk(3, "entry");
890 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
891 return wl3501_esbq_exec(this, &sig, sizeof(sig));
892 }
893
894 static int wl3501_mgmt_association(struct wl3501_card *this)
895 {
896 struct wl3501_assoc_req sig = {
897 .sig_id = WL3501_SIG_ASSOC_REQ,
898 .timeout = 1000,
899 .listen_interval = 5,
900 .cap_info = this->cap_info,
901 };
902
903 dprintk(3, "entry");
904 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
905 return wl3501_esbq_exec(this, &sig, sizeof(sig));
906 }
907
908 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
909 {
910 struct wl3501_card *this = dev->priv;
911 struct wl3501_join_confirm sig;
912
913 dprintk(3, "entry");
914 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
915 if (sig.status == WL3501_STATUS_SUCCESS) {
916 if (this->net_type == IW_MODE_INFRA) {
917 if (this->join_sta_bss < this->bss_cnt) {
918 const int i = this->join_sta_bss;
919 memcpy(this->bssid,
920 this->bss_set[i].bssid, ETH_ALEN);
921 this->chan = this->bss_set[i].ds_pset.chan;
922 iw_copy_mgmt_info_element(&this->keep_essid.el,
923 &this->bss_set[i].ssid.el);
924 wl3501_mgmt_auth(this);
925 }
926 } else {
927 const int i = this->join_sta_bss;
928
929 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
930 this->chan = this->bss_set[i].ds_pset.chan;
931 iw_copy_mgmt_info_element(&this->keep_essid.el,
932 &this->bss_set[i].ssid.el);
933 wl3501_online(dev);
934 }
935 } else {
936 int i;
937 this->join_sta_bss++;
938 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
939 if (!wl3501_mgmt_join(this, i))
940 break;
941 this->join_sta_bss = i;
942 if (this->join_sta_bss == this->bss_cnt) {
943 if (this->net_type == IW_MODE_INFRA)
944 wl3501_mgmt_scan(this, 100);
945 else {
946 this->adhoc_times++;
947 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
948 wl3501_mgmt_start(this);
949 else
950 wl3501_mgmt_scan(this, 100);
951 }
952 }
953 }
954 }
955
956 static inline void wl3501_alarm_interrupt(struct net_device *dev,
957 struct wl3501_card *this)
958 {
959 if (this->net_type == IW_MODE_INFRA) {
960 printk(KERN_INFO "Wireless LAN offline\n");
961 netif_stop_queue(dev);
962 wl3501_mgmt_resync(this);
963 }
964 }
965
966 static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
967 struct wl3501_card *this,
968 u16 addr)
969 {
970 struct wl3501_md_confirm sig;
971
972 dprintk(3, "entry");
973 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
974 wl3501_free_tx_buffer(this, sig.data);
975 if (netif_queue_stopped(dev))
976 netif_wake_queue(dev);
977 }
978
979 static inline void wl3501_md_ind_interrupt(struct net_device *dev,
980 struct wl3501_card *this, u16 addr)
981 {
982 struct wl3501_md_ind sig;
983 struct sk_buff *skb;
984 u8 rssi, addr4[ETH_ALEN];
985 u16 pkt_len;
986
987 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
988 this->start_seg = sig.data;
989 wl3501_get_from_wla(this,
990 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
991 &rssi, sizeof(rssi));
992 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
993
994 wl3501_get_from_wla(this,
995 sig.data +
996 offsetof(struct wl3501_rx_hdr, addr4),
997 &addr4, sizeof(addr4));
998 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
999 addr4[2] == 0x03 && addr4[4] == 0x00)) {
1000 printk(KERN_INFO "Insupported packet type!\n");
1001 return;
1002 }
1003 pkt_len = sig.size + 12 - 24 - 4 - 6;
1004
1005 skb = dev_alloc_skb(pkt_len + 5);
1006
1007 if (!skb) {
1008 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
1009 dev->name, pkt_len);
1010 this->stats.rx_dropped++;
1011 } else {
1012 skb->dev = dev;
1013 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
1014 eth_copy_and_sum(skb, (unsigned char *)&sig.daddr, 12, 0);
1015 wl3501_receive(this, skb->data, pkt_len);
1016 skb_put(skb, pkt_len);
1017 skb->protocol = eth_type_trans(skb, dev);
1018 dev->last_rx = jiffies;
1019 this->stats.rx_packets++;
1020 this->stats.rx_bytes += skb->len;
1021 netif_rx(skb);
1022 }
1023 }
1024
1025 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
1026 u16 addr, void *sig, int size)
1027 {
1028 dprintk(3, "entry");
1029 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
1030 sizeof(this->sig_get_confirm));
1031 wake_up(&this->wait);
1032 }
1033
1034 static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1035 struct wl3501_card *this,
1036 u16 addr)
1037 {
1038 struct wl3501_start_confirm sig;
1039
1040 dprintk(3, "entry");
1041 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1042 if (sig.status == WL3501_STATUS_SUCCESS)
1043 netif_wake_queue(dev);
1044 }
1045
1046 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1047 u16 addr)
1048 {
1049 struct wl3501_card *this = dev->priv;
1050 struct wl3501_assoc_confirm sig;
1051
1052 dprintk(3, "entry");
1053 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1054
1055 if (sig.status == WL3501_STATUS_SUCCESS)
1056 wl3501_online(dev);
1057 }
1058
1059 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1060 u16 addr)
1061 {
1062 struct wl3501_auth_confirm sig;
1063
1064 dprintk(3, "entry");
1065 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1066
1067 if (sig.status == WL3501_STATUS_SUCCESS)
1068 wl3501_mgmt_association(this);
1069 else
1070 wl3501_mgmt_resync(this);
1071 }
1072
1073 static inline void wl3501_rx_interrupt(struct net_device *dev)
1074 {
1075 int morepkts;
1076 u16 addr;
1077 u8 sig_id;
1078 struct wl3501_card *this = dev->priv;
1079
1080 dprintk(3, "entry");
1081 loop:
1082 morepkts = 0;
1083 if (!wl3501_esbq_confirm(this))
1084 goto free;
1085 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1086 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1087
1088 switch (sig_id) {
1089 case WL3501_SIG_DEAUTH_IND:
1090 case WL3501_SIG_DISASSOC_IND:
1091 case WL3501_SIG_ALARM:
1092 wl3501_alarm_interrupt(dev, this);
1093 break;
1094 case WL3501_SIG_MD_CONFIRM:
1095 wl3501_md_confirm_interrupt(dev, this, addr);
1096 break;
1097 case WL3501_SIG_MD_IND:
1098 wl3501_md_ind_interrupt(dev, this, addr);
1099 break;
1100 case WL3501_SIG_GET_CONFIRM:
1101 wl3501_get_confirm_interrupt(this, addr,
1102 &this->sig_get_confirm,
1103 sizeof(this->sig_get_confirm));
1104 break;
1105 case WL3501_SIG_PWR_MGMT_CONFIRM:
1106 wl3501_get_confirm_interrupt(this, addr,
1107 &this->sig_pwr_mgmt_confirm,
1108 sizeof(this->sig_pwr_mgmt_confirm));
1109 break;
1110 case WL3501_SIG_START_CONFIRM:
1111 wl3501_start_confirm_interrupt(dev, this, addr);
1112 break;
1113 case WL3501_SIG_SCAN_CONFIRM:
1114 wl3501_mgmt_scan_confirm(this, addr);
1115 break;
1116 case WL3501_SIG_JOIN_CONFIRM:
1117 wl3501_mgmt_join_confirm(dev, addr);
1118 break;
1119 case WL3501_SIG_ASSOC_CONFIRM:
1120 wl3501_assoc_confirm_interrupt(dev, addr);
1121 break;
1122 case WL3501_SIG_AUTH_CONFIRM:
1123 wl3501_auth_confirm_interrupt(this, addr);
1124 break;
1125 case WL3501_SIG_RESYNC_CONFIRM:
1126 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1127 break;
1128 }
1129 wl3501_esbq_confirm_done(this);
1130 morepkts = 1;
1131 /* free request if necessary */
1132 free:
1133 wl3501_esbq_req_free(this);
1134 if (morepkts)
1135 goto loop;
1136 }
1137
1138 static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1139 {
1140 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1141 }
1142
1143 /**
1144 * wl3501_interrupt - Hardware interrupt from card.
1145 * @irq - Interrupt number
1146 * @dev_id - net_device
1147 *
1148 * We must acknowledge the interrupt as soon as possible, and block the
1149 * interrupt from the same card immediately to prevent re-entry.
1150 *
1151 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1152 * On the other hand, to prevent SUTRO from malfunctioning, we must
1153 * unlock the SUTRO as soon as possible.
1154 */
1155 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1156 {
1157 struct net_device *dev = dev_id;
1158 struct wl3501_card *this;
1159
1160 this = netdev_priv(dev);
1161 spin_lock(&this->lock);
1162 wl3501_ack_interrupt(this);
1163 wl3501_block_interrupt(this);
1164 wl3501_rx_interrupt(dev);
1165 wl3501_unblock_interrupt(this);
1166 spin_unlock(&this->lock);
1167
1168 return IRQ_HANDLED;
1169 }
1170
1171 static int wl3501_reset_board(struct wl3501_card *this)
1172 {
1173 u8 tmp = 0;
1174 int i, rc = 0;
1175
1176 /* Coreset */
1177 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1178 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1179 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1180
1181 /* Reset SRAM 0x480 to zero */
1182 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1183
1184 /* Start up */
1185 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1186
1187 WL3501_NOPLOOP(1024 * 50);
1188
1189 wl3501_unblock_interrupt(this); /* acme: was commented */
1190
1191 /* Polling Self_Test_Status */
1192 for (i = 0; i < 10000; i++) {
1193 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1194
1195 if (tmp == 'W') {
1196 /* firmware complete all test successfully */
1197 tmp = 'A';
1198 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1199 goto out;
1200 }
1201 WL3501_NOPLOOP(10);
1202 }
1203 printk(KERN_WARNING "%s: failed to reset the board!\n", __FUNCTION__);
1204 rc = -ENODEV;
1205 out:
1206 return rc;
1207 }
1208
1209 static int wl3501_init_firmware(struct wl3501_card *this)
1210 {
1211 u16 ptr, next;
1212 int rc = wl3501_reset_board(this);
1213
1214 if (rc)
1215 goto fail;
1216 this->card_name[0] = '\0';
1217 wl3501_get_from_wla(this, 0x1a00,
1218 this->card_name, sizeof(this->card_name));
1219 this->card_name[sizeof(this->card_name) - 1] = '\0';
1220 this->firmware_date[0] = '\0';
1221 wl3501_get_from_wla(this, 0x1a40,
1222 this->firmware_date, sizeof(this->firmware_date));
1223 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1224 /* Switch to SRAM Page 0 */
1225 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1226 /* Read parameter from card */
1227 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1228 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1229 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1230 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1231 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1232 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1233 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1234 this->esbq_req_end += this->esbq_req_start;
1235 this->esbq_confirm = this->esbq_confirm_start;
1236 this->esbq_confirm_end += this->esbq_confirm_start;
1237 /* Initial Tx Buffer */
1238 this->tx_buffer_cnt = 1;
1239 ptr = this->tx_buffer_head;
1240 next = ptr + WL3501_BLKSZ;
1241 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1242 this->tx_buffer_cnt++;
1243 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1244 ptr = next;
1245 next = ptr + WL3501_BLKSZ;
1246 }
1247 rc = 0;
1248 next = 0;
1249 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1250 this->tx_buffer_tail = ptr;
1251 out:
1252 return rc;
1253 fail:
1254 printk(KERN_WARNING "%s: failed!\n", __FUNCTION__);
1255 goto out;
1256 }
1257
1258 static int wl3501_close(struct net_device *dev)
1259 {
1260 struct wl3501_card *this = dev->priv;
1261 int rc = -ENODEV;
1262 unsigned long flags;
1263 struct pcmcia_device *link;
1264 link = this->p_dev;
1265
1266 spin_lock_irqsave(&this->lock, flags);
1267 link->open--;
1268
1269 /* Stop wl3501_hard_start_xmit() from now on */
1270 netif_stop_queue(dev);
1271 wl3501_ack_interrupt(this);
1272
1273 /* Mask interrupts from the SUTRO */
1274 wl3501_block_interrupt(this);
1275
1276 rc = 0;
1277 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1278 spin_unlock_irqrestore(&this->lock, flags);
1279 return rc;
1280 }
1281
1282 /**
1283 * wl3501_reset - Reset the SUTRO.
1284 * @dev - network device
1285 *
1286 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1287 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1288 * is running. It seems to be dangerous.
1289 */
1290 static int wl3501_reset(struct net_device *dev)
1291 {
1292 struct wl3501_card *this = dev->priv;
1293 int rc = -ENODEV;
1294
1295 wl3501_block_interrupt(this);
1296
1297 if (wl3501_init_firmware(this)) {
1298 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1299 dev->name);
1300 /* Free IRQ, and mark IRQ as unused */
1301 free_irq(dev->irq, dev);
1302 goto out;
1303 }
1304
1305 /*
1306 * Queue has to be started only when the Card is Started
1307 */
1308 netif_stop_queue(dev);
1309 this->adhoc_times = 0;
1310 wl3501_ack_interrupt(this);
1311 wl3501_unblock_interrupt(this);
1312 wl3501_mgmt_scan(this, 100);
1313 dprintk(1, "%s: device reset", dev->name);
1314 rc = 0;
1315 out:
1316 return rc;
1317 }
1318
1319 static void wl3501_tx_timeout(struct net_device *dev)
1320 {
1321 struct wl3501_card *this = dev->priv;
1322 struct net_device_stats *stats = &this->stats;
1323 unsigned long flags;
1324 int rc;
1325
1326 stats->tx_errors++;
1327 spin_lock_irqsave(&this->lock, flags);
1328 rc = wl3501_reset(dev);
1329 spin_unlock_irqrestore(&this->lock, flags);
1330 if (rc)
1331 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1332 dev->name, rc);
1333 else {
1334 dev->trans_start = jiffies;
1335 netif_wake_queue(dev);
1336 }
1337 }
1338
1339 /*
1340 * Return : 0 - OK
1341 * 1 - Could not transmit (dev_queue_xmit will queue it)
1342 * and try to sent it later
1343 */
1344 static int wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1345 {
1346 int enabled, rc;
1347 struct wl3501_card *this = dev->priv;
1348 unsigned long flags;
1349
1350 spin_lock_irqsave(&this->lock, flags);
1351 enabled = wl3501_block_interrupt(this);
1352 dev->trans_start = jiffies;
1353 rc = wl3501_send_pkt(this, skb->data, skb->len);
1354 if (enabled)
1355 wl3501_unblock_interrupt(this);
1356 if (rc) {
1357 ++this->stats.tx_dropped;
1358 netif_stop_queue(dev);
1359 } else {
1360 ++this->stats.tx_packets;
1361 this->stats.tx_bytes += skb->len;
1362 kfree_skb(skb);
1363
1364 if (this->tx_buffer_cnt < 2)
1365 netif_stop_queue(dev);
1366 }
1367 spin_unlock_irqrestore(&this->lock, flags);
1368 return rc;
1369 }
1370
1371 static int wl3501_open(struct net_device *dev)
1372 {
1373 int rc = -ENODEV;
1374 struct wl3501_card *this = dev->priv;
1375 unsigned long flags;
1376 struct pcmcia_device *link;
1377 link = this->p_dev;
1378
1379 spin_lock_irqsave(&this->lock, flags);
1380 if (!pcmcia_dev_present(link))
1381 goto out;
1382 netif_device_attach(dev);
1383 link->open++;
1384
1385 /* Initial WL3501 firmware */
1386 dprintk(1, "%s: Initialize WL3501 firmware...", dev->name);
1387 if (wl3501_init_firmware(this))
1388 goto fail;
1389 /* Initial device variables */
1390 this->adhoc_times = 0;
1391 /* Acknowledge Interrupt, for cleaning last state */
1392 wl3501_ack_interrupt(this);
1393
1394 /* Enable interrupt from card after all */
1395 wl3501_unblock_interrupt(this);
1396 wl3501_mgmt_scan(this, 100);
1397 rc = 0;
1398 dprintk(1, "%s: WL3501 opened", dev->name);
1399 printk(KERN_INFO "%s: Card Name: %s\n"
1400 "%s: Firmware Date: %s\n",
1401 dev->name, this->card_name,
1402 dev->name, this->firmware_date);
1403 out:
1404 spin_unlock_irqrestore(&this->lock, flags);
1405 return rc;
1406 fail:
1407 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1408 goto out;
1409 }
1410
1411 static struct net_device_stats *wl3501_get_stats(struct net_device *dev)
1412 {
1413 struct wl3501_card *this = dev->priv;
1414
1415 return &this->stats;
1416 }
1417
1418 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1419 {
1420 struct wl3501_card *this = dev->priv;
1421 struct iw_statistics *wstats = &this->wstats;
1422 u32 value; /* size checked: it is u32 */
1423
1424 memset(wstats, 0, sizeof(*wstats));
1425 wstats->status = netif_running(dev);
1426 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1427 &value, sizeof(value)))
1428 wstats->discard.code += value;
1429 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1430 &value, sizeof(value)))
1431 wstats->discard.code += value;
1432 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1433 &value, sizeof(value)))
1434 wstats->discard.code += value;
1435 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1436 &value, sizeof(value)))
1437 wstats->discard.retries = value;
1438 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1439 &value, sizeof(value)))
1440 wstats->discard.misc += value;
1441 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1442 &value, sizeof(value)))
1443 wstats->discard.misc += value;
1444 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1445 &value, sizeof(value)))
1446 wstats->discard.misc += value;
1447 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1448 &value, sizeof(value)))
1449 wstats->discard.misc += value;
1450 return wstats;
1451 }
1452
1453 static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1454 {
1455 strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver));
1456 }
1457
1458 static const struct ethtool_ops ops = {
1459 .get_drvinfo = wl3501_get_drvinfo
1460 };
1461
1462 /**
1463 * wl3501_detach - deletes a driver "instance"
1464 * @link - FILL_IN
1465 *
1466 * This deletes a driver "instance". The device is de-registered with Card
1467 * Services. If it has been released, all local data structures are freed.
1468 * Otherwise, the structures will be freed when the device is released.
1469 */
1470 static void wl3501_detach(struct pcmcia_device *link)
1471 {
1472 struct net_device *dev = link->priv;
1473
1474 /* If the device is currently configured and active, we won't actually
1475 * delete it yet. Instead, it is marked so that when the release()
1476 * function is called, that will trigger a proper detach(). */
1477
1478 while (link->open > 0)
1479 wl3501_close(dev);
1480
1481 netif_device_detach(dev);
1482 wl3501_release(link);
1483
1484 if (link->priv)
1485 free_netdev(link->priv);
1486
1487 return;
1488 }
1489
1490 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1491 union iwreq_data *wrqu, char *extra)
1492 {
1493 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1494 return 0;
1495 }
1496
1497 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1498 union iwreq_data *wrqu, char *extra)
1499 {
1500 struct wl3501_card *this = dev->priv;
1501 int channel = wrqu->freq.m;
1502 int rc = -EINVAL;
1503
1504 if (iw_valid_channel(this->reg_domain, channel)) {
1505 this->chan = channel;
1506 rc = wl3501_reset(dev);
1507 }
1508 return rc;
1509 }
1510
1511 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1512 union iwreq_data *wrqu, char *extra)
1513 {
1514 struct wl3501_card *this = dev->priv;
1515
1516 wrqu->freq.m = wl3501_chan2freq[this->chan - 1] * 100000;
1517 wrqu->freq.e = 1;
1518 return 0;
1519 }
1520
1521 static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1522 union iwreq_data *wrqu, char *extra)
1523 {
1524 int rc = -EINVAL;
1525
1526 if (wrqu->mode == IW_MODE_INFRA ||
1527 wrqu->mode == IW_MODE_ADHOC ||
1528 wrqu->mode == IW_MODE_AUTO) {
1529 struct wl3501_card *this = dev->priv;
1530
1531 this->net_type = wrqu->mode;
1532 rc = wl3501_reset(dev);
1533 }
1534 return rc;
1535 }
1536
1537 static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1538 union iwreq_data *wrqu, char *extra)
1539 {
1540 struct wl3501_card *this = dev->priv;
1541
1542 wrqu->mode = this->net_type;
1543 return 0;
1544 }
1545
1546 static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1547 union iwreq_data *wrqu, char *extra)
1548 {
1549 struct wl3501_card *this = dev->priv;
1550
1551 wrqu->sens.value = this->rssi;
1552 wrqu->sens.disabled = !wrqu->sens.value;
1553 wrqu->sens.fixed = 1;
1554 return 0;
1555 }
1556
1557 static int wl3501_get_range(struct net_device *dev,
1558 struct iw_request_info *info,
1559 union iwreq_data *wrqu, char *extra)
1560 {
1561 struct iw_range *range = (struct iw_range *)extra;
1562
1563 /* Set the length (very important for backward compatibility) */
1564 wrqu->data.length = sizeof(*range);
1565
1566 /* Set all the info we don't care or don't know about to zero */
1567 memset(range, 0, sizeof(*range));
1568
1569 /* Set the Wireless Extension versions */
1570 range->we_version_compiled = WIRELESS_EXT;
1571 range->we_version_source = 1;
1572 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1573 /* FIXME: study the code to fill in more fields... */
1574 return 0;
1575 }
1576
1577 static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1578 union iwreq_data *wrqu, char *extra)
1579 {
1580 struct wl3501_card *this = dev->priv;
1581 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
1582 int rc = -EINVAL;
1583
1584 /* FIXME: we support other ARPHRDs...*/
1585 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1586 goto out;
1587 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
1588 /* FIXME: rescan? */
1589 } else
1590 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1591 /* FIXME: rescan? deassoc & scan? */
1592 rc = 0;
1593 out:
1594 return rc;
1595 }
1596
1597 static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1598 union iwreq_data *wrqu, char *extra)
1599 {
1600 struct wl3501_card *this = dev->priv;
1601
1602 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1603 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1604 return 0;
1605 }
1606
1607 static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1608 union iwreq_data *wrqu, char *extra)
1609 {
1610 /*
1611 * FIXME: trigger scanning with a reset, yes, I'm lazy
1612 */
1613 return wl3501_reset(dev);
1614 }
1615
1616 static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1617 union iwreq_data *wrqu, char *extra)
1618 {
1619 struct wl3501_card *this = dev->priv;
1620 int i;
1621 char *current_ev = extra;
1622 struct iw_event iwe;
1623
1624 for (i = 0; i < this->bss_cnt; ++i) {
1625 iwe.cmd = SIOCGIWAP;
1626 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1627 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
1628 current_ev = iwe_stream_add_event(current_ev,
1629 extra + IW_SCAN_MAX_DATA,
1630 &iwe, IW_EV_ADDR_LEN);
1631 iwe.cmd = SIOCGIWESSID;
1632 iwe.u.data.flags = 1;
1633 iwe.u.data.length = this->bss_set[i].ssid.el.len;
1634 current_ev = iwe_stream_add_point(current_ev,
1635 extra + IW_SCAN_MAX_DATA,
1636 &iwe,
1637 this->bss_set[i].ssid.essid);
1638 iwe.cmd = SIOCGIWMODE;
1639 iwe.u.mode = this->bss_set[i].bss_type;
1640 current_ev = iwe_stream_add_event(current_ev,
1641 extra + IW_SCAN_MAX_DATA,
1642 &iwe, IW_EV_UINT_LEN);
1643 iwe.cmd = SIOCGIWFREQ;
1644 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1645 iwe.u.freq.e = 0;
1646 current_ev = iwe_stream_add_event(current_ev,
1647 extra + IW_SCAN_MAX_DATA,
1648 &iwe, IW_EV_FREQ_LEN);
1649 iwe.cmd = SIOCGIWENCODE;
1650 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1651 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1652 else
1653 iwe.u.data.flags = IW_ENCODE_DISABLED;
1654 iwe.u.data.length = 0;
1655 current_ev = iwe_stream_add_point(current_ev,
1656 extra + IW_SCAN_MAX_DATA,
1657 &iwe, NULL);
1658 }
1659 /* Length of data */
1660 wrqu->data.length = (current_ev - extra);
1661 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1662 return 0;
1663 }
1664
1665 static int wl3501_set_essid(struct net_device *dev,
1666 struct iw_request_info *info,
1667 union iwreq_data *wrqu, char *extra)
1668 {
1669 struct wl3501_card *this = dev->priv;
1670
1671 if (wrqu->data.flags) {
1672 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1673 &this->essid.el,
1674 extra, wrqu->data.length);
1675 } else { /* We accept any ESSID */
1676 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1677 &this->essid.el, "ANY", 3);
1678 }
1679 return wl3501_reset(dev);
1680 }
1681
1682 static int wl3501_get_essid(struct net_device *dev,
1683 struct iw_request_info *info,
1684 union iwreq_data *wrqu, char *extra)
1685 {
1686 struct wl3501_card *this = dev->priv;
1687 unsigned long flags;
1688
1689 spin_lock_irqsave(&this->lock, flags);
1690 wrqu->essid.flags = 1;
1691 wrqu->essid.length = this->essid.el.len;
1692 memcpy(extra, this->essid.essid, this->essid.el.len);
1693 spin_unlock_irqrestore(&this->lock, flags);
1694 return 0;
1695 }
1696
1697 static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1698 union iwreq_data *wrqu, char *extra)
1699 {
1700 struct wl3501_card *this = dev->priv;
1701
1702 if (wrqu->data.length > sizeof(this->nick))
1703 return -E2BIG;
1704 strlcpy(this->nick, extra, wrqu->data.length);
1705 return 0;
1706 }
1707
1708 static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1709 union iwreq_data *wrqu, char *extra)
1710 {
1711 struct wl3501_card *this = dev->priv;
1712
1713 strlcpy(extra, this->nick, 32);
1714 wrqu->data.length = strlen(extra);
1715 return 0;
1716 }
1717
1718 static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1719 union iwreq_data *wrqu, char *extra)
1720 {
1721 /*
1722 * FIXME: have to see from where to get this info, perhaps this card
1723 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1724 * common with the Planet Access Points. -acme
1725 */
1726 wrqu->bitrate.value = 2000000;
1727 wrqu->bitrate.fixed = 1;
1728 return 0;
1729 }
1730
1731 static int wl3501_get_rts_threshold(struct net_device *dev,
1732 struct iw_request_info *info,
1733 union iwreq_data *wrqu, char *extra)
1734 {
1735 u16 threshold; /* size checked: it is u16 */
1736 struct wl3501_card *this = dev->priv;
1737 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1738 &threshold, sizeof(threshold));
1739 if (!rc) {
1740 wrqu->rts.value = threshold;
1741 wrqu->rts.disabled = threshold >= 2347;
1742 wrqu->rts.fixed = 1;
1743 }
1744 return rc;
1745 }
1746
1747 static int wl3501_get_frag_threshold(struct net_device *dev,
1748 struct iw_request_info *info,
1749 union iwreq_data *wrqu, char *extra)
1750 {
1751 u16 threshold; /* size checked: it is u16 */
1752 struct wl3501_card *this = dev->priv;
1753 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1754 &threshold, sizeof(threshold));
1755 if (!rc) {
1756 wrqu->frag.value = threshold;
1757 wrqu->frag.disabled = threshold >= 2346;
1758 wrqu->frag.fixed = 1;
1759 }
1760 return rc;
1761 }
1762
1763 static int wl3501_get_txpow(struct net_device *dev,
1764 struct iw_request_info *info,
1765 union iwreq_data *wrqu, char *extra)
1766 {
1767 u16 txpow;
1768 struct wl3501_card *this = dev->priv;
1769 int rc = wl3501_get_mib_value(this,
1770 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1771 &txpow, sizeof(txpow));
1772 if (!rc) {
1773 wrqu->txpower.value = txpow;
1774 wrqu->txpower.disabled = 0;
1775 /*
1776 * From the MIB values I think this can be configurable,
1777 * as it lists several tx power levels -acme
1778 */
1779 wrqu->txpower.fixed = 0;
1780 wrqu->txpower.flags = IW_TXPOW_MWATT;
1781 }
1782 return rc;
1783 }
1784
1785 static int wl3501_get_retry(struct net_device *dev,
1786 struct iw_request_info *info,
1787 union iwreq_data *wrqu, char *extra)
1788 {
1789 u8 retry; /* size checked: it is u8 */
1790 struct wl3501_card *this = dev->priv;
1791 int rc = wl3501_get_mib_value(this,
1792 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1793 &retry, sizeof(retry));
1794 if (rc)
1795 goto out;
1796 if (wrqu->retry.flags & IW_RETRY_LONG) {
1797 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1798 goto set_value;
1799 }
1800 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1801 &retry, sizeof(retry));
1802 if (rc)
1803 goto out;
1804 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1805 set_value:
1806 wrqu->retry.value = retry;
1807 wrqu->retry.disabled = 0;
1808 out:
1809 return rc;
1810 }
1811
1812 static int wl3501_get_encode(struct net_device *dev,
1813 struct iw_request_info *info,
1814 union iwreq_data *wrqu, char *extra)
1815 {
1816 u8 implemented, restricted, keys[100], len_keys, tocopy;
1817 struct wl3501_card *this = dev->priv;
1818 int rc = wl3501_get_mib_value(this,
1819 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1820 &implemented, sizeof(implemented));
1821 if (rc)
1822 goto out;
1823 if (!implemented) {
1824 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1825 goto out;
1826 }
1827 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1828 &restricted, sizeof(restricted));
1829 if (rc)
1830 goto out;
1831 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1832 IW_ENCODE_OPEN;
1833 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1834 &len_keys, sizeof(len_keys));
1835 if (rc)
1836 goto out;
1837 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1838 keys, len_keys);
1839 if (rc)
1840 goto out;
1841 tocopy = min_t(u8, len_keys, wrqu->encoding.length);
1842 tocopy = min_t(u8, tocopy, 100);
1843 wrqu->encoding.length = tocopy;
1844 memset(extra, 0, tocopy);
1845 memcpy(extra, keys, tocopy);
1846 out:
1847 return rc;
1848 }
1849
1850 static int wl3501_get_power(struct net_device *dev,
1851 struct iw_request_info *info,
1852 union iwreq_data *wrqu, char *extra)
1853 {
1854 u8 pwr_state;
1855 struct wl3501_card *this = dev->priv;
1856 int rc = wl3501_get_mib_value(this,
1857 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1858 &pwr_state, sizeof(pwr_state));
1859 if (rc)
1860 goto out;
1861 wrqu->power.disabled = !pwr_state;
1862 wrqu->power.flags = IW_POWER_ON;
1863 out:
1864 return rc;
1865 }
1866
1867 static const iw_handler wl3501_handler[] = {
1868 [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name,
1869 [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq,
1870 [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq,
1871 [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode,
1872 [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode,
1873 [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens,
1874 [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range,
1875 [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy,
1876 [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy,
1877 [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy,
1878 [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy,
1879 [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap,
1880 [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap,
1881 [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan,
1882 [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan,
1883 [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid,
1884 [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid,
1885 [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick,
1886 [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick,
1887 [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate,
1888 [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold,
1889 [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold,
1890 [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow,
1891 [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry,
1892 [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode,
1893 [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power,
1894 };
1895
1896 static const struct iw_handler_def wl3501_handler_def = {
1897 .num_standard = sizeof(wl3501_handler) / sizeof(iw_handler),
1898 .standard = (iw_handler *)wl3501_handler,
1899 .get_wireless_stats = wl3501_get_wireless_stats,
1900 };
1901
1902 /**
1903 * wl3501_attach - creates an "instance" of the driver
1904 *
1905 * Creates an "instance" of the driver, allocating local data structures for
1906 * one device. The device is registered with Card Services.
1907 *
1908 * The dev_link structure is initialized, but we don't actually configure the
1909 * card at this point -- we wait until we receive a card insertion event.
1910 */
1911 static int wl3501_probe(struct pcmcia_device *p_dev)
1912 {
1913 struct net_device *dev;
1914 struct wl3501_card *this;
1915
1916 /* The io structure describes IO port mapping */
1917 p_dev->io.NumPorts1 = 16;
1918 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
1919 p_dev->io.IOAddrLines = 5;
1920
1921 /* Interrupt setup */
1922 p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
1923 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
1924 p_dev->irq.Handler = wl3501_interrupt;
1925
1926 /* General socket configuration */
1927 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
1928 p_dev->conf.IntType = INT_MEMORY_AND_IO;
1929 p_dev->conf.ConfigIndex = 1;
1930
1931 dev = alloc_etherdev(sizeof(struct wl3501_card));
1932 if (!dev)
1933 goto out_link;
1934 dev->open = wl3501_open;
1935 dev->stop = wl3501_close;
1936 dev->hard_start_xmit = wl3501_hard_start_xmit;
1937 dev->tx_timeout = wl3501_tx_timeout;
1938 dev->watchdog_timeo = 5 * HZ;
1939 dev->get_stats = wl3501_get_stats;
1940 this = dev->priv;
1941 this->wireless_data.spy_data = &this->spy_data;
1942 this->p_dev = p_dev;
1943 dev->wireless_data = &this->wireless_data;
1944 dev->wireless_handlers = (struct iw_handler_def *)&wl3501_handler_def;
1945 SET_ETHTOOL_OPS(dev, &ops);
1946 netif_stop_queue(dev);
1947 p_dev->priv = p_dev->irq.Instance = dev;
1948
1949 return wl3501_config(p_dev);
1950 out_link:
1951 return -ENOMEM;
1952 }
1953
1954 #define CS_CHECK(fn, ret) \
1955 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
1956
1957 /**
1958 * wl3501_config - configure the PCMCIA socket and make eth device available
1959 * @link - FILL_IN
1960 *
1961 * wl3501_config() is scheduled to run after a CARD_INSERTION event is
1962 * received, to configure the PCMCIA socket, and to make the ethernet device
1963 * available to the system.
1964 */
1965 static int wl3501_config(struct pcmcia_device *link)
1966 {
1967 struct net_device *dev = link->priv;
1968 int i = 0, j, last_fn, last_ret;
1969 struct wl3501_card *this;
1970
1971 /* Try allocating IO ports. This tries a few fixed addresses. If you
1972 * want, you can also read the card's config table to pick addresses --
1973 * see the serial driver for an example. */
1974
1975 for (j = 0x280; j < 0x400; j += 0x20) {
1976 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1977 * 0x200-0x2ff, and so on, because this seems safer */
1978 link->io.BasePort1 = j;
1979 link->io.BasePort2 = link->io.BasePort1 + 0x10;
1980 i = pcmcia_request_io(link, &link->io);
1981 if (i == CS_SUCCESS)
1982 break;
1983 }
1984 if (i != CS_SUCCESS) {
1985 cs_error(link, RequestIO, i);
1986 goto failed;
1987 }
1988
1989 /* Now allocate an interrupt line. Note that this does not actually
1990 * assign a handler to the interrupt. */
1991
1992 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
1993
1994 /* This actually configures the PCMCIA socket -- setting up the I/O
1995 * windows and the interrupt mapping. */
1996
1997 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1998
1999 dev->irq = link->irq.AssignedIRQ;
2000 dev->base_addr = link->io.BasePort1;
2001 SET_NETDEV_DEV(dev, &handle_to_dev(link));
2002 if (register_netdev(dev)) {
2003 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
2004 goto failed;
2005 }
2006
2007 SET_MODULE_OWNER(dev);
2008
2009 this = dev->priv;
2010 /*
2011 * At this point, the dev_node_t structure(s) should be initialized and
2012 * arranged in a linked list at link->dev_node.
2013 */
2014 link->dev_node = &this->node;
2015
2016 this->base_addr = dev->base_addr;
2017
2018 if (!wl3501_get_flash_mac_addr(this)) {
2019 printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
2020 dev->name);
2021 goto failed;
2022 }
2023 strcpy(this->node.dev_name, dev->name);
2024
2025 /* print probe information */
2026 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, MAC addr in flash ROM:",
2027 dev->name, this->base_addr, (int)dev->irq);
2028 for (i = 0; i < 6; i++) {
2029 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
2030 printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
2031 }
2032 printk("\n");
2033 /*
2034 * Initialize card parameters - added by jss
2035 */
2036 this->net_type = IW_MODE_INFRA;
2037 this->bss_cnt = 0;
2038 this->join_sta_bss = 0;
2039 this->adhoc_times = 0;
2040 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
2041 "ANY", 3);
2042 this->card_name[0] = '\0';
2043 this->firmware_date[0] = '\0';
2044 this->rssi = 255;
2045 this->chan = iw_default_channel(this->reg_domain);
2046 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
2047 spin_lock_init(&this->lock);
2048 init_waitqueue_head(&this->wait);
2049 netif_start_queue(dev);
2050 return 0;
2051
2052 cs_failed:
2053 cs_error(link, last_fn, last_ret);
2054 failed:
2055 wl3501_release(link);
2056 return -ENODEV;
2057 }
2058
2059 /**
2060 * wl3501_release - unregister the net, release PCMCIA configuration
2061 * @arg - link
2062 *
2063 * After a card is removed, wl3501_release() will unregister the net device,
2064 * and release the PCMCIA configuration. If the device is still open, this
2065 * will be postponed until it is closed.
2066 */
2067 static void wl3501_release(struct pcmcia_device *link)
2068 {
2069 struct net_device *dev = link->priv;
2070
2071 /* Unlink the device chain */
2072 if (link->dev_node)
2073 unregister_netdev(dev);
2074
2075 pcmcia_disable_device(link);
2076 }
2077
2078 static int wl3501_suspend(struct pcmcia_device *link)
2079 {
2080 struct net_device *dev = link->priv;
2081
2082 wl3501_pwr_mgmt(dev->priv, WL3501_SUSPEND);
2083 if (link->open)
2084 netif_device_detach(dev);
2085
2086 return 0;
2087 }
2088
2089 static int wl3501_resume(struct pcmcia_device *link)
2090 {
2091 struct net_device *dev = link->priv;
2092
2093 wl3501_pwr_mgmt(dev->priv, WL3501_RESUME);
2094 if (link->open) {
2095 wl3501_reset(dev);
2096 netif_device_attach(dev);
2097 }
2098
2099 return 0;
2100 }
2101
2102
2103 static struct pcmcia_device_id wl3501_ids[] = {
2104 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2105 PCMCIA_DEVICE_NULL
2106 };
2107 MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2108
2109 static struct pcmcia_driver wl3501_driver = {
2110 .owner = THIS_MODULE,
2111 .drv = {
2112 .name = "wl3501_cs",
2113 },
2114 .probe = wl3501_probe,
2115 .remove = wl3501_detach,
2116 .id_table = wl3501_ids,
2117 .suspend = wl3501_suspend,
2118 .resume = wl3501_resume,
2119 };
2120
2121 static int __init wl3501_init_module(void)
2122 {
2123 return pcmcia_register_driver(&wl3501_driver);
2124 }
2125
2126 static void __exit wl3501_exit_module(void)
2127 {
2128 pcmcia_unregister_driver(&wl3501_driver);
2129 }
2130
2131 module_init(wl3501_init_module);
2132 module_exit(wl3501_exit_module);
2133
2134 MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2135 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2136 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2137 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2138 MODULE_LICENSE("GPL");
Tomato firmware and modifications.