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[net-next-2.6.git] / drivers / net / wireless / wl3501_cs.c
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1da177e4
LT		 1/*
2 * WL3501 Wireless LAN PCMCIA Card Driver for Linux
3 * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw
4 * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
5 * Wireless extensions in 2.4 by Gustavo Niemeyer <niemeyer@conectiva.com>
6 *
7 * References used by Fox Chen while writing the original driver for 2.0.30:
8 *
9 * 1. WL24xx packet drivers (tooasm.asm)
10 * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO
11 * 3. IEEE 802.11
12 * 4. Linux network driver (/usr/src/linux/drivers/net)
13 * 5. ISA card driver - wl24.c
14 * 6. Linux PCMCIA skeleton driver - skeleton.c
15 * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c
16 *
17 * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12
18 * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode.
19 * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null
20 * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct
21 * ETHER/IP/UDP/TCP header, and acknowledgement overhead)
22 *
23 * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode,
24 * 173 Kbytes/s in TCP.
25 *
26 * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode
27 * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60)
28 */
1da177e4 29
1da177e4
LT		 30#include <linux/delay.h>
31#include <linux/types.h>
32#include <linux/ethtool.h>
33#include <linux/init.h>
34#include <linux/interrupt.h>
35#include <linux/in.h>
36#include <linux/kernel.h>
37#include <linux/module.h>
38#include <linux/fcntl.h>
39#include <linux/if_arp.h>
40#include <linux/ioport.h>
41#include <linux/netdevice.h>
42#include <linux/etherdevice.h>
43#include <linux/skbuff.h>
44#include <linux/slab.h>
45#include <linux/string.h>
46#include <linux/wireless.h>
47
48#include <net/iw_handler.h>
49
1da177e4
LT		 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
78static int pc_debug = PCMCIA_DEBUG;
79module_param(pc_debug, int, 0);
80#define dprintk(n, format, args...) \
81 { if (pc_debug > (n)) \
c94c93da 82 printk(KERN_INFO "%s: " format "\n", __func__ , ##args); }
1da177e4
LT		 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 */
15b99ac1 104static int wl3501_config(struct pcmcia_device *link);
fba395ee 105static void wl3501_release(struct pcmcia_device *link);
1da177e4
LT		 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 */
112static dev_info_t wl3501_dev_info = "wl3501_cs";
113
114static 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
120static 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 */
181static 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 */
200static 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
212static 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
221static 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
1da177e4
LT		 227static 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 */
238static 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 */
ff1d2767
JM		 285static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
286 int size)
1da177e4
LT		 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 */
ff1d2767
JM		 307static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
308 int size)
1da177e4
LT		 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 */
333static 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;
362out:
363 return ret;
364}
365
366/*
367 * Free an allocated Tx Buffer. ptr must be correct position.
368 */
369static 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
387static 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
395static 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
406static 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
421static 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);
448out:
449 return rc;
450}
451
452static 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);
c94c93da 473 printk(KERN_INFO "%s: %s status=%d\n", __func__,
1da177e4
LT		 474 suspend ? "suspend" : "resume",
475 this->sig_pwr_mgmt_confirm.status);
476 goto out;
477 }
478 }
479 spin_unlock_irqrestore(&this->lock, flags);
480out:
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 */
494static 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 }
575out:
576 return rc;
577}
578
579static 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
588static 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
594static 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
600static 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
615static 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
633static 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
686static 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 */
757static 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 */
774static 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 */
793static 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
833static 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;
848out:
849 return;
850}
851
852static 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
860static void wl3501_online(struct net_device *dev)
861{
6dbc9c89 862 struct wl3501_card *this = netdev_priv(dev);
1da177e4 863
e174961c
JB		 864 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
865 dev->name, this->bssid);
1da177e4
LT		 866 netif_wake_queue(dev);
867}
868
869static 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
879static 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
892static 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
906static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
907{
6dbc9c89 908 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 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
954static 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
964static 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
977static 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 */
8c7b7faa 1012 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
1da177e4
LT		 1013 wl3501_receive(this, skb->data, pkt_len);
1014 skb_put(skb, pkt_len);
1015 skb->protocol = eth_type_trans(skb, dev);
1016 dev->last_rx = jiffies;
1017 this->stats.rx_packets++;
1018 this->stats.rx_bytes += skb->len;
1019 netif_rx(skb);
1020 }
1021}
1022
1023static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
1024 u16 addr, void *sig, int size)
1025{
1026 dprintk(3, "entry");
1027 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
1028 sizeof(this->sig_get_confirm));
1029 wake_up(&this->wait);
1030}
1031
1032static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1033 struct wl3501_card *this,
1034 u16 addr)
1035{
1036 struct wl3501_start_confirm sig;
1037
1038 dprintk(3, "entry");
1039 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1040 if (sig.status == WL3501_STATUS_SUCCESS)
1041 netif_wake_queue(dev);
1042}
1043
1044static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1045 u16 addr)
1046{
6dbc9c89 1047 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1048 struct wl3501_assoc_confirm sig;
1049
1050 dprintk(3, "entry");
1051 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1052
1053 if (sig.status == WL3501_STATUS_SUCCESS)
1054 wl3501_online(dev);
1055}
1056
1057static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1058 u16 addr)
1059{
1060 struct wl3501_auth_confirm sig;
1061
1062 dprintk(3, "entry");
1063 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1064
1065 if (sig.status == WL3501_STATUS_SUCCESS)
1066 wl3501_mgmt_association(this);
1067 else
1068 wl3501_mgmt_resync(this);
1069}
1070
1071static inline void wl3501_rx_interrupt(struct net_device *dev)
1072{
1073 int morepkts;
1074 u16 addr;
1075 u8 sig_id;
6dbc9c89 1076 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1077
1078 dprintk(3, "entry");
1079loop:
1080 morepkts = 0;
1081 if (!wl3501_esbq_confirm(this))
1082 goto free;
1083 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1084 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1085
1086 switch (sig_id) {
1087 case WL3501_SIG_DEAUTH_IND:
1088 case WL3501_SIG_DISASSOC_IND:
1089 case WL3501_SIG_ALARM:
1090 wl3501_alarm_interrupt(dev, this);
1091 break;
1092 case WL3501_SIG_MD_CONFIRM:
1093 wl3501_md_confirm_interrupt(dev, this, addr);
1094 break;
1095 case WL3501_SIG_MD_IND:
1096 wl3501_md_ind_interrupt(dev, this, addr);
1097 break;
1098 case WL3501_SIG_GET_CONFIRM:
1099 wl3501_get_confirm_interrupt(this, addr,
1100 &this->sig_get_confirm,
1101 sizeof(this->sig_get_confirm));
1102 break;
1103 case WL3501_SIG_PWR_MGMT_CONFIRM:
1104 wl3501_get_confirm_interrupt(this, addr,
1105 &this->sig_pwr_mgmt_confirm,
1106 sizeof(this->sig_pwr_mgmt_confirm));
1107 break;
1108 case WL3501_SIG_START_CONFIRM:
1109 wl3501_start_confirm_interrupt(dev, this, addr);
1110 break;
1111 case WL3501_SIG_SCAN_CONFIRM:
1112 wl3501_mgmt_scan_confirm(this, addr);
1113 break;
1114 case WL3501_SIG_JOIN_CONFIRM:
1115 wl3501_mgmt_join_confirm(dev, addr);
1116 break;
1117 case WL3501_SIG_ASSOC_CONFIRM:
1118 wl3501_assoc_confirm_interrupt(dev, addr);
1119 break;
1120 case WL3501_SIG_AUTH_CONFIRM:
1121 wl3501_auth_confirm_interrupt(this, addr);
1122 break;
1123 case WL3501_SIG_RESYNC_CONFIRM:
1124 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1125 break;
1126 }
1127 wl3501_esbq_confirm_done(this);
1128 morepkts = 1;
1129 /* free request if necessary */
1130free:
1131 wl3501_esbq_req_free(this);
1132 if (morepkts)
1133 goto loop;
1134}
1135
1136static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1137{
1138 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1139}
1140
1141/**
1142 * wl3501_interrupt - Hardware interrupt from card.
1143 * @irq - Interrupt number
1144 * @dev_id - net_device
1da177e4
LT		 1145 *
1146 * We must acknowledge the interrupt as soon as possible, and block the
1147 * interrupt from the same card immediately to prevent re-entry.
1148 *
1149 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1150 * On the other hand, to prevent SUTRO from malfunctioning, we must
1151 * unlock the SUTRO as soon as possible.
1152 */
7d12e780 1153static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1da177e4 1154{
c31f28e7 1155 struct net_device *dev = dev_id;
1da177e4 1156 struct wl3501_card *this;
1da177e4 1157
c31f28e7 1158 this = netdev_priv(dev);
1da177e4
LT		 1159 spin_lock(&this->lock);
1160 wl3501_ack_interrupt(this);
1161 wl3501_block_interrupt(this);
1162 wl3501_rx_interrupt(dev);
1163 wl3501_unblock_interrupt(this);
1164 spin_unlock(&this->lock);
c31f28e7
JG		 1165
1166 return IRQ_HANDLED;
1da177e4
LT		 1167}
1168
1169static int wl3501_reset_board(struct wl3501_card *this)
1170{
1171 u8 tmp = 0;
1172 int i, rc = 0;
1173
1174 /* Coreset */
1175 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1176 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1177 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1178
1179 /* Reset SRAM 0x480 to zero */
1180 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1181
1182 /* Start up */
1183 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1184
1185 WL3501_NOPLOOP(1024 * 50);
1186
1187 wl3501_unblock_interrupt(this); /* acme: was commented */
1188
1189 /* Polling Self_Test_Status */
1190 for (i = 0; i < 10000; i++) {
1191 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1192
1193 if (tmp == 'W') {
1194 /* firmware complete all test successfully */
1195 tmp = 'A';
1196 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1197 goto out;
1198 }
1199 WL3501_NOPLOOP(10);
1200 }
c94c93da 1201 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1da177e4
LT		 1202 rc = -ENODEV;
1203out:
1204 return rc;
1205}
1206
1207static int wl3501_init_firmware(struct wl3501_card *this)
1208{
1209 u16 ptr, next;
1210 int rc = wl3501_reset_board(this);
1211
1212 if (rc)
1213 goto fail;
1214 this->card_name[0] = '\0';
1215 wl3501_get_from_wla(this, 0x1a00,
1216 this->card_name, sizeof(this->card_name));
1217 this->card_name[sizeof(this->card_name) - 1] = '\0';
1218 this->firmware_date[0] = '\0';
1219 wl3501_get_from_wla(this, 0x1a40,
1220 this->firmware_date, sizeof(this->firmware_date));
1221 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1222 /* Switch to SRAM Page 0 */
1223 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1224 /* Read parameter from card */
1225 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1226 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1227 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1228 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1229 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1230 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1231 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1232 this->esbq_req_end += this->esbq_req_start;
1233 this->esbq_confirm = this->esbq_confirm_start;
1234 this->esbq_confirm_end += this->esbq_confirm_start;
1235 /* Initial Tx Buffer */
1236 this->tx_buffer_cnt = 1;
1237 ptr = this->tx_buffer_head;
1238 next = ptr + WL3501_BLKSZ;
1239 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1240 this->tx_buffer_cnt++;
1241 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1242 ptr = next;
1243 next = ptr + WL3501_BLKSZ;
1244 }
1245 rc = 0;
1246 next = 0;
1247 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1248 this->tx_buffer_tail = ptr;
1249out:
1250 return rc;
1251fail:
c94c93da 1252 printk(KERN_WARNING "%s: failed!\n", __func__);
1da177e4
LT		 1253 goto out;
1254}
1255
1256static int wl3501_close(struct net_device *dev)
1257{
6dbc9c89 1258 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1259 int rc = -ENODEV;
1260 unsigned long flags;
fba395ee 1261 struct pcmcia_device *link;
fd238232 1262 link = this->p_dev;
1da177e4
LT		 1263
1264 spin_lock_irqsave(&this->lock, flags);
1da177e4
LT		 1265 link->open--;
1266
1267 /* Stop wl3501_hard_start_xmit() from now on */
1268 netif_stop_queue(dev);
1269 wl3501_ack_interrupt(this);
1270
1271 /* Mask interrupts from the SUTRO */
1272 wl3501_block_interrupt(this);
1273
1274 rc = 0;
1275 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1da177e4
LT		 1276 spin_unlock_irqrestore(&this->lock, flags);
1277 return rc;
1278}
1279
1280/**
1281 * wl3501_reset - Reset the SUTRO.
1282 * @dev - network device
1283 *
1284 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1285 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1286 * is running. It seems to be dangerous.
1287 */
1288static int wl3501_reset(struct net_device *dev)
1289{
6dbc9c89 1290 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1291 int rc = -ENODEV;
1292
1293 wl3501_block_interrupt(this);
1294
1295 if (wl3501_init_firmware(this)) {
1296 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1297 dev->name);
1298 /* Free IRQ, and mark IRQ as unused */
1299 free_irq(dev->irq, dev);
1300 goto out;
1301 }
1302
1303 /*
1304 * Queue has to be started only when the Card is Started
1305 */
1306 netif_stop_queue(dev);
1307 this->adhoc_times = 0;
1308 wl3501_ack_interrupt(this);
1309 wl3501_unblock_interrupt(this);
1310 wl3501_mgmt_scan(this, 100);
1311 dprintk(1, "%s: device reset", dev->name);
1312 rc = 0;
1313out:
1314 return rc;
1315}
1316
1317static void wl3501_tx_timeout(struct net_device *dev)
1318{
6dbc9c89 1319 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1320 struct net_device_stats *stats = &this->stats;
1321 unsigned long flags;
1322 int rc;
1323
1324 stats->tx_errors++;
1325 spin_lock_irqsave(&this->lock, flags);
1326 rc = wl3501_reset(dev);
1327 spin_unlock_irqrestore(&this->lock, flags);
1328 if (rc)
1329 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1330 dev->name, rc);
1331 else {
1332 dev->trans_start = jiffies;
1333 netif_wake_queue(dev);
1334 }
1335}
1336
1337/*
1338 * Return : 0 - OK
1339 * 1 - Could not transmit (dev_queue_xmit will queue it)
1340 * and try to sent it later
1341 */
1342static int wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1343{
1344 int enabled, rc;
6dbc9c89 1345 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1346 unsigned long flags;
1347
1348 spin_lock_irqsave(&this->lock, flags);
1349 enabled = wl3501_block_interrupt(this);
1350 dev->trans_start = jiffies;
1351 rc = wl3501_send_pkt(this, skb->data, skb->len);
1352 if (enabled)
1353 wl3501_unblock_interrupt(this);
1354 if (rc) {
1355 ++this->stats.tx_dropped;
1356 netif_stop_queue(dev);
1357 } else {
1358 ++this->stats.tx_packets;
1359 this->stats.tx_bytes += skb->len;
1360 kfree_skb(skb);
1361
1362 if (this->tx_buffer_cnt < 2)
1363 netif_stop_queue(dev);
1364 }
1365 spin_unlock_irqrestore(&this->lock, flags);
1366 return rc;
1367}
1368
1369static int wl3501_open(struct net_device *dev)
1370{
1371 int rc = -ENODEV;
6dbc9c89 1372 struct wl3501_card *this = netdev_priv(dev);
1da177e4 1373 unsigned long flags;
fba395ee 1374 struct pcmcia_device *link;
fd238232 1375 link = this->p_dev;
1da177e4
LT		 1376
1377 spin_lock_irqsave(&this->lock, flags);
9940ec36 1378 if (!pcmcia_dev_present(link))
1da177e4
LT		 1379 goto out;
1380 netif_device_attach(dev);
1381 link->open++;
1382
1383 /* Initial WL3501 firmware */
1384 dprintk(1, "%s: Initialize WL3501 firmware...", dev->name);
1385 if (wl3501_init_firmware(this))
1386 goto fail;
1387 /* Initial device variables */
1388 this->adhoc_times = 0;
1389 /* Acknowledge Interrupt, for cleaning last state */
1390 wl3501_ack_interrupt(this);
1391
1392 /* Enable interrupt from card after all */
1393 wl3501_unblock_interrupt(this);
1394 wl3501_mgmt_scan(this, 100);
1395 rc = 0;
1396 dprintk(1, "%s: WL3501 opened", dev->name);
1397 printk(KERN_INFO "%s: Card Name: %s\n"
1398 "%s: Firmware Date: %s\n",
1399 dev->name, this->card_name,
1400 dev->name, this->firmware_date);
1401out:
1402 spin_unlock_irqrestore(&this->lock, flags);
1403 return rc;
1404fail:
1405 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1406 goto out;
1407}
1408
ff1d2767 1409static struct net_device_stats *wl3501_get_stats(struct net_device *dev)
1da177e4 1410{
6dbc9c89 1411 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1412
1413 return &this->stats;
1414}
1415
ff1d2767 1416static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1da177e4 1417{
6dbc9c89 1418 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1419 struct iw_statistics *wstats = &this->wstats;
1420 u32 value; /* size checked: it is u32 */
1421
1422 memset(wstats, 0, sizeof(*wstats));
1423 wstats->status = netif_running(dev);
1424 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1425 &value, sizeof(value)))
1426 wstats->discard.code += value;
1427 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1428 &value, sizeof(value)))
1429 wstats->discard.code += value;
1430 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1431 &value, sizeof(value)))
1432 wstats->discard.code += value;
1433 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1434 &value, sizeof(value)))
1435 wstats->discard.retries = value;
1436 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1437 &value, sizeof(value)))
1438 wstats->discard.misc += value;
1439 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1440 &value, sizeof(value)))
1441 wstats->discard.misc += value;
1442 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1443 &value, sizeof(value)))
1444 wstats->discard.misc += value;
1445 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1446 &value, sizeof(value)))
1447 wstats->discard.misc += value;
1448 return wstats;
1449}
1450
1451static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1452{
1453 strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver));
1454}
1455
7282d491 1456static const struct ethtool_ops ops = {
1da177e4
LT		 1457 .get_drvinfo = wl3501_get_drvinfo
1458};
1459
1460/**
1461 * wl3501_detach - deletes a driver "instance"
1462 * @link - FILL_IN
1463 *
1464 * This deletes a driver "instance". The device is de-registered with Card
1465 * Services. If it has been released, all local data structures are freed.
1466 * Otherwise, the structures will be freed when the device is released.
1467 */
fba395ee 1468static void wl3501_detach(struct pcmcia_device *link)
1da177e4 1469{
cc3b4866 1470 struct net_device *dev = link->priv;
1da177e4 1471
1da177e4
LT		 1472 /* If the device is currently configured and active, we won't actually
1473 * delete it yet. Instead, it is marked so that when the release()
1474 * function is called, that will trigger a proper detach(). */
1475
e2d40963
DB		 1476 while (link->open > 0)
1477 wl3501_close(dev);
1da177e4 1478
e2d40963
DB		 1479 netif_device_detach(dev);
1480 wl3501_release(link);
1da177e4 1481
1da177e4
LT		 1482 if (link->priv)
1483 free_netdev(link->priv);
fd238232 1484
1da177e4
LT		 1485 return;
1486}
1487
1488static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1489 union iwreq_data *wrqu, char *extra)
1490{
1491 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1492 return 0;
1493}
1494
1495static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1496 union iwreq_data *wrqu, char *extra)
1497{
6dbc9c89 1498 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1499 int channel = wrqu->freq.m;
1500 int rc = -EINVAL;
1501
1502 if (iw_valid_channel(this->reg_domain, channel)) {
1503 this->chan = channel;
1504 rc = wl3501_reset(dev);
1505 }
1506 return rc;
1507}
1508
1509static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1510 union iwreq_data *wrqu, char *extra)
1511{
6dbc9c89 1512 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1513
1514 wrqu->freq.m = wl3501_chan2freq[this->chan - 1] * 100000;
1515 wrqu->freq.e = 1;
1516 return 0;
1517}
1518
1519static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1520 union iwreq_data *wrqu, char *extra)
1521{
1522 int rc = -EINVAL;
1523
1524 if (wrqu->mode == IW_MODE_INFRA ||
1525 wrqu->mode == IW_MODE_ADHOC ||
1526 wrqu->mode == IW_MODE_AUTO) {
6dbc9c89 1527 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1528
1529 this->net_type = wrqu->mode;
1530 rc = wl3501_reset(dev);
1531 }
1532 return rc;
1533}
1534
1535static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1536 union iwreq_data *wrqu, char *extra)
1537{
6dbc9c89 1538 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1539
1540 wrqu->mode = this->net_type;
1541 return 0;
1542}
1543
1544static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1545 union iwreq_data *wrqu, char *extra)
1546{
6dbc9c89 1547 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1548
1549 wrqu->sens.value = this->rssi;
1550 wrqu->sens.disabled = !wrqu->sens.value;
1551 wrqu->sens.fixed = 1;
1552 return 0;
1553}
1554
1555static int wl3501_get_range(struct net_device *dev,
1556 struct iw_request_info *info,
1557 union iwreq_data *wrqu, char *extra)
1558{
1559 struct iw_range *range = (struct iw_range *)extra;
1560
1561 /* Set the length (very important for backward compatibility) */
1562 wrqu->data.length = sizeof(*range);
1563
1564 /* Set all the info we don't care or don't know about to zero */
1565 memset(range, 0, sizeof(*range));
1566
1567 /* Set the Wireless Extension versions */
1568 range->we_version_compiled = WIRELESS_EXT;
1569 range->we_version_source = 1;
1570 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1571 /* FIXME: study the code to fill in more fields... */
1572 return 0;
1573}
1574
1575static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1576 union iwreq_data *wrqu, char *extra)
1577{
6dbc9c89 1578 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1579 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
1580 int rc = -EINVAL;
1581
1582 /* FIXME: we support other ARPHRDs...*/
1583 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1584 goto out;
1585 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
1586 /* FIXME: rescan? */
1587 } else
1588 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1589 /* FIXME: rescan? deassoc & scan? */
1590 rc = 0;
1591out:
1592 return rc;
1593}
1594
1595static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1596 union iwreq_data *wrqu, char *extra)
1597{
6dbc9c89 1598 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1599
1600 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1601 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1602 return 0;
1603}
1604
1605static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1606 union iwreq_data *wrqu, char *extra)
1607{
1608 /*
1609 * FIXME: trigger scanning with a reset, yes, I'm lazy
1610 */
1611 return wl3501_reset(dev);
1612}
1613
1614static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1615 union iwreq_data *wrqu, char *extra)
1616{
6dbc9c89 1617 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1618 int i;
1619 char *current_ev = extra;
1620 struct iw_event iwe;
1621
1622 for (i = 0; i < this->bss_cnt; ++i) {
1623 iwe.cmd = SIOCGIWAP;
1624 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1625 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
ccc58057 1626 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1627 extra + IW_SCAN_MAX_DATA,
1628 &iwe, IW_EV_ADDR_LEN);
1629 iwe.cmd = SIOCGIWESSID;
1630 iwe.u.data.flags = 1;
1631 iwe.u.data.length = this->bss_set[i].ssid.el.len;
ccc58057 1632 current_ev = iwe_stream_add_point(info, current_ev,
1da177e4
LT		 1633 extra + IW_SCAN_MAX_DATA,
1634 &iwe,
1635 this->bss_set[i].ssid.essid);
1636 iwe.cmd = SIOCGIWMODE;
1637 iwe.u.mode = this->bss_set[i].bss_type;
ccc58057 1638 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1639 extra + IW_SCAN_MAX_DATA,
1640 &iwe, IW_EV_UINT_LEN);
1641 iwe.cmd = SIOCGIWFREQ;
1642 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1643 iwe.u.freq.e = 0;
ccc58057 1644 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1645 extra + IW_SCAN_MAX_DATA,
1646 &iwe, IW_EV_FREQ_LEN);
1647 iwe.cmd = SIOCGIWENCODE;
1648 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1649 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1650 else
1651 iwe.u.data.flags = IW_ENCODE_DISABLED;
1652 iwe.u.data.length = 0;
ccc58057 1653 current_ev = iwe_stream_add_point(info, current_ev,
1da177e4
LT		 1654 extra + IW_SCAN_MAX_DATA,
1655 &iwe, NULL);
1656 }
1657 /* Length of data */
1658 wrqu->data.length = (current_ev - extra);
1659 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1660 return 0;
1661}
1662
1663static int wl3501_set_essid(struct net_device *dev,
1664 struct iw_request_info *info,
1665 union iwreq_data *wrqu, char *extra)
1666{
6dbc9c89 1667 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1668
1669 if (wrqu->data.flags) {
1670 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1671 &this->essid.el,
1672 extra, wrqu->data.length);
1673 } else { /* We accept any ESSID */
1674 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1675 &this->essid.el, "ANY", 3);
1676 }
1677 return wl3501_reset(dev);
1678}
1679
1680static int wl3501_get_essid(struct net_device *dev,
1681 struct iw_request_info *info,
1682 union iwreq_data *wrqu, char *extra)
1683{
6dbc9c89 1684 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1685 unsigned long flags;
1686
1687 spin_lock_irqsave(&this->lock, flags);
1688 wrqu->essid.flags = 1;
1689 wrqu->essid.length = this->essid.el.len;
1690 memcpy(extra, this->essid.essid, this->essid.el.len);
1691 spin_unlock_irqrestore(&this->lock, flags);
1692 return 0;
1693}
1694
1695static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1696 union iwreq_data *wrqu, char *extra)
1697{
6dbc9c89 1698 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1699
1700 if (wrqu->data.length > sizeof(this->nick))
1701 return -E2BIG;
1702 strlcpy(this->nick, extra, wrqu->data.length);
1703 return 0;
1704}
1705
1706static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1707 union iwreq_data *wrqu, char *extra)
1708{
6dbc9c89 1709 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1710
1711 strlcpy(extra, this->nick, 32);
1712 wrqu->data.length = strlen(extra);
1713 return 0;
1714}
1715
1716static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1717 union iwreq_data *wrqu, char *extra)
1718{
1719 /*
1720 * FIXME: have to see from where to get this info, perhaps this card
1721 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1722 * common with the Planet Access Points. -acme
1723 */
1724 wrqu->bitrate.value = 2000000;
1725 wrqu->bitrate.fixed = 1;
1726 return 0;
1727}
1728
1729static int wl3501_get_rts_threshold(struct net_device *dev,
1730 struct iw_request_info *info,
1731 union iwreq_data *wrqu, char *extra)
1732{
1733 u16 threshold; /* size checked: it is u16 */
6dbc9c89 1734 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1735 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1736 &threshold, sizeof(threshold));
1737 if (!rc) {
1738 wrqu->rts.value = threshold;
1739 wrqu->rts.disabled = threshold >= 2347;
1740 wrqu->rts.fixed = 1;
1741 }
1742 return rc;
1743}
1744
1745static int wl3501_get_frag_threshold(struct net_device *dev,
1746 struct iw_request_info *info,
1747 union iwreq_data *wrqu, char *extra)
1748{
1749 u16 threshold; /* size checked: it is u16 */
6dbc9c89 1750 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1751 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1752 &threshold, sizeof(threshold));
1753 if (!rc) {
1754 wrqu->frag.value = threshold;
1755 wrqu->frag.disabled = threshold >= 2346;
1756 wrqu->frag.fixed = 1;
1757 }
1758 return rc;
1759}
1760
1761static int wl3501_get_txpow(struct net_device *dev,
1762 struct iw_request_info *info,
1763 union iwreq_data *wrqu, char *extra)
1764{
1765 u16 txpow;
6dbc9c89 1766 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1767 int rc = wl3501_get_mib_value(this,
1768 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1769 &txpow, sizeof(txpow));
1770 if (!rc) {
1771 wrqu->txpower.value = txpow;
1772 wrqu->txpower.disabled = 0;
1773 /*
1774 * From the MIB values I think this can be configurable,
1775 * as it lists several tx power levels -acme
1776 */
1777 wrqu->txpower.fixed = 0;
1778 wrqu->txpower.flags = IW_TXPOW_MWATT;
1779 }
1780 return rc;
1781}
1782
1783static int wl3501_get_retry(struct net_device *dev,
1784 struct iw_request_info *info,
1785 union iwreq_data *wrqu, char *extra)
1786{
1787 u8 retry; /* size checked: it is u8 */
6dbc9c89 1788 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1789 int rc = wl3501_get_mib_value(this,
1790 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1791 &retry, sizeof(retry));
1792 if (rc)
1793 goto out;
de9621bc
JT		 1794 if (wrqu->retry.flags & IW_RETRY_LONG) {
1795 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1da177e4
LT		 1796 goto set_value;
1797 }
1798 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1799 &retry, sizeof(retry));
1800 if (rc)
1801 goto out;
de9621bc 1802 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1da177e4
LT		 1803set_value:
1804 wrqu->retry.value = retry;
1805 wrqu->retry.disabled = 0;
1806out:
1807 return rc;
1808}
1809
1810static int wl3501_get_encode(struct net_device *dev,
1811 struct iw_request_info *info,
1812 union iwreq_data *wrqu, char *extra)
1813{
1814 u8 implemented, restricted, keys[100], len_keys, tocopy;
6dbc9c89 1815 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1816 int rc = wl3501_get_mib_value(this,
1817 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1818 &implemented, sizeof(implemented));
1819 if (rc)
1820 goto out;
1821 if (!implemented) {
1822 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1823 goto out;
1824 }
1825 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1826 &restricted, sizeof(restricted));
1827 if (rc)
1828 goto out;
1829 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1830 IW_ENCODE_OPEN;
1831 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1832 &len_keys, sizeof(len_keys));
1833 if (rc)
1834 goto out;
1835 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1836 keys, len_keys);
1837 if (rc)
1838 goto out;
1839 tocopy = min_t(u8, len_keys, wrqu->encoding.length);
1840 tocopy = min_t(u8, tocopy, 100);
1841 wrqu->encoding.length = tocopy;
1da177e4
LT		 1842 memcpy(extra, keys, tocopy);
1843out:
1844 return rc;
1845}
1846
1847static int wl3501_get_power(struct net_device *dev,
1848 struct iw_request_info *info,
1849 union iwreq_data *wrqu, char *extra)
1850{
1851 u8 pwr_state;
6dbc9c89 1852 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1853 int rc = wl3501_get_mib_value(this,
1854 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1855 &pwr_state, sizeof(pwr_state));
1856 if (rc)
1857 goto out;
1858 wrqu->power.disabled = !pwr_state;
1859 wrqu->power.flags = IW_POWER_ON;
1860out:
1861 return rc;
1862}
1863
1864static const iw_handler wl3501_handler[] = {
1865 [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name,
1866 [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq,
1867 [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq,
1868 [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode,
1869 [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode,
1870 [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens,
1871 [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range,
1872 [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy,
1873 [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy,
1874 [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy,
1875 [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy,
1876 [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap,
1877 [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap,
1878 [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan,
1879 [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan,
1880 [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid,
1881 [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid,
1882 [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick,
1883 [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick,
1884 [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate,
1885 [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold,
1886 [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold,
1887 [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow,
1888 [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry,
1889 [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode,
1890 [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power,
1891};
1892
1893static const struct iw_handler_def wl3501_handler_def = {
ff8ac609 1894 .num_standard = ARRAY_SIZE(wl3501_handler),
1da177e4 1895 .standard = (iw_handler *)wl3501_handler,
00b309f5 1896 .get_wireless_stats = wl3501_get_wireless_stats,
1da177e4
LT		 1897};
1898
1899/**
1900 * wl3501_attach - creates an "instance" of the driver
1901 *
1902 * Creates an "instance" of the driver, allocating local data structures for
1903 * one device. The device is registered with Card Services.
1904 *
1905 * The dev_link structure is initialized, but we don't actually configure the
1906 * card at this point -- we wait until we receive a card insertion event.
1907 */
15b99ac1 1908static int wl3501_probe(struct pcmcia_device *p_dev)
1da177e4 1909{
1da177e4 1910 struct net_device *dev;
00b309f5 1911 struct wl3501_card *this;
1da177e4
LT		 1912
1913 /* The io structure describes IO port mapping */
fba395ee
DB		 1914 p_dev->io.NumPorts1 = 16;
1915 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
1916 p_dev->io.IOAddrLines = 5;
1da177e4
LT		 1917
1918 /* Interrupt setup */
47cbb110 1919 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
fba395ee
DB		 1920 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
1921 p_dev->irq.Handler = wl3501_interrupt;
1da177e4
LT		 1922
1923 /* General socket configuration */
fba395ee
DB		 1924 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
1925 p_dev->conf.IntType = INT_MEMORY_AND_IO;
1926 p_dev->conf.ConfigIndex = 1;
1da177e4
LT		 1927
1928 dev = alloc_etherdev(sizeof(struct wl3501_card));
1929 if (!dev)
1930 goto out_link;
1931 dev->open = wl3501_open;
1932 dev->stop = wl3501_close;
1933 dev->hard_start_xmit = wl3501_hard_start_xmit;
1934 dev->tx_timeout = wl3501_tx_timeout;
1935 dev->watchdog_timeo = 5 * HZ;
1936 dev->get_stats = wl3501_get_stats;
6dbc9c89 1937 this = netdev_priv(dev);
00b309f5 1938 this->wireless_data.spy_data = &this->spy_data;
fd238232 1939 this->p_dev = p_dev;
00b309f5 1940 dev->wireless_data = &this->wireless_data;
1da177e4
LT		 1941 dev->wireless_handlers = (struct iw_handler_def *)&wl3501_handler_def;
1942 SET_ETHTOOL_OPS(dev, &ops);
1943 netif_stop_queue(dev);
fba395ee 1944 p_dev->priv = p_dev->irq.Instance = dev;
1da177e4 1945
15b99ac1 1946 return wl3501_config(p_dev);
1da177e4 1947out_link:
f8cfa618 1948 return -ENOMEM;
1da177e4
LT		 1949}
1950
1951#define CS_CHECK(fn, ret) \
1952do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
1953
1954/**
1955 * wl3501_config - configure the PCMCIA socket and make eth device available
1956 * @link - FILL_IN
1957 *
1958 * wl3501_config() is scheduled to run after a CARD_INSERTION event is
1959 * received, to configure the PCMCIA socket, and to make the ethernet device
1960 * available to the system.
1961 */
15b99ac1 1962static int wl3501_config(struct pcmcia_device *link)
1da177e4 1963{
1da177e4
LT		 1964 struct net_device *dev = link->priv;
1965 int i = 0, j, last_fn, last_ret;
1da177e4
LT		 1966 struct wl3501_card *this;
1967
1da177e4
LT		 1968 /* Try allocating IO ports. This tries a few fixed addresses. If you
1969 * want, you can also read the card's config table to pick addresses --
1970 * see the serial driver for an example. */
1971
1972 for (j = 0x280; j < 0x400; j += 0x20) {
1973 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1974 * 0x200-0x2ff, and so on, because this seems safer */
1975 link->io.BasePort1 = j;
1976 link->io.BasePort2 = link->io.BasePort1 + 0x10;
fba395ee 1977 i = pcmcia_request_io(link, &link->io);
4c89e88b 1978 if (i == 0)
1da177e4
LT		 1979 break;
1980 }
4c89e88b 1981 if (i != 0) {
fba395ee 1982 cs_error(link, RequestIO, i);
1da177e4
LT		 1983 goto failed;
1984 }
1985
1986 /* Now allocate an interrupt line. Note that this does not actually
1987 * assign a handler to the interrupt. */
1988
fba395ee 1989 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
1da177e4
LT		 1990
1991 /* This actually configures the PCMCIA socket -- setting up the I/O
1992 * windows and the interrupt mapping. */
1993
fba395ee 1994 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1da177e4
LT		 1995
1996 dev->irq = link->irq.AssignedIRQ;
1997 dev->base_addr = link->io.BasePort1;
fba395ee 1998 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1da177e4
LT		 1999 if (register_netdev(dev)) {
2000 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
2001 goto failed;
2002 }
2003
6dbc9c89 2004 this = netdev_priv(dev);
1da177e4
LT		 2005 /*
2006 * At this point, the dev_node_t structure(s) should be initialized and
fd238232 2007 * arranged in a linked list at link->dev_node.
1da177e4 2008 */
fd238232 2009 link->dev_node = &this->node;
1da177e4
LT		 2010
2011 this->base_addr = dev->base_addr;
2012
2013 if (!wl3501_get_flash_mac_addr(this)) {
2014 printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
2015 dev->name);
2016 goto failed;
2017 }
2018 strcpy(this->node.dev_name, dev->name);
2019
0795af57 2020 for (i = 0; i < 6; i++)
1da177e4 2021 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
0795af57
JP		 2022
2023 /* print probe information */
2024 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
e174961c 2025 "MAC addr in flash ROM:%pM\n",
0795af57 2026 dev->name, this->base_addr, (int)dev->irq,
e174961c 2027 dev->dev_addr);
1da177e4
LT		 2028 /*
2029 * Initialize card parameters - added by jss
2030 */
2031 this->net_type = IW_MODE_INFRA;
2032 this->bss_cnt = 0;
2033 this->join_sta_bss = 0;
2034 this->adhoc_times = 0;
2035 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
2036 "ANY", 3);
2037 this->card_name[0] = '\0';
2038 this->firmware_date[0] = '\0';
2039 this->rssi = 255;
2040 this->chan = iw_default_channel(this->reg_domain);
2041 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
2042 spin_lock_init(&this->lock);
2043 init_waitqueue_head(&this->wait);
2044 netif_start_queue(dev);
15b99ac1
DB		 2045 return 0;
2046
1da177e4 2047cs_failed:
fba395ee 2048 cs_error(link, last_fn, last_ret);
1da177e4
LT		 2049failed:
2050 wl3501_release(link);
15b99ac1 2051 return -ENODEV;
1da177e4
LT		 2052}
2053
2054/**
2055 * wl3501_release - unregister the net, release PCMCIA configuration
2056 * @arg - link
2057 *
2058 * After a card is removed, wl3501_release() will unregister the net device,
2059 * and release the PCMCIA configuration. If the device is still open, this
2060 * will be postponed until it is closed.
2061 */
fba395ee 2062static void wl3501_release(struct pcmcia_device *link)
1da177e4
LT		 2063{
2064 struct net_device *dev = link->priv;
2065
2066 /* Unlink the device chain */
fd238232 2067 if (link->dev_node)
1da177e4 2068 unregister_netdev(dev);
1da177e4 2069
fba395ee 2070 pcmcia_disable_device(link);
1da177e4
LT		 2071}
2072
fba395ee 2073static int wl3501_suspend(struct pcmcia_device *link)
98e4c28b 2074{
98e4c28b
DB		 2075 struct net_device *dev = link->priv;
2076
6dbc9c89 2077 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
e2d40963 2078 if (link->open)
8661bb5b 2079 netif_device_detach(dev);
98e4c28b
DB		 2080
2081 return 0;
2082}
2083
fba395ee 2084static int wl3501_resume(struct pcmcia_device *link)
98e4c28b 2085{
98e4c28b
DB		 2086 struct net_device *dev = link->priv;
2087
6dbc9c89 2088 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
e2d40963 2089 if (link->open) {
8661bb5b
DB		 2090 wl3501_reset(dev);
2091 netif_device_attach(dev);
98e4c28b
DB		 2092 }
2093
2094 return 0;
2095}
2096
2097
77b73f9b
DB		 2098static struct pcmcia_device_id wl3501_ids[] = {
2099 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2100 PCMCIA_DEVICE_NULL
2101};
2102MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2103
1da177e4 2104static struct pcmcia_driver wl3501_driver = {
1e212f36
DB		 2105 .owner = THIS_MODULE,
2106 .drv = {
2107 .name = "wl3501_cs",
1da177e4 2108 },
15b99ac1 2109 .probe = wl3501_probe,
cc3b4866 2110 .remove = wl3501_detach,
77b73f9b 2111 .id_table = wl3501_ids,
98e4c28b
DB		 2112 .suspend = wl3501_suspend,
2113 .resume = wl3501_resume,
1da177e4
LT		 2114};
2115
2116static int __init wl3501_init_module(void)
2117{
2118 return pcmcia_register_driver(&wl3501_driver);
2119}
2120
2121static void __exit wl3501_exit_module(void)
2122{
1da177e4 2123 pcmcia_unregister_driver(&wl3501_driver);
1da177e4
LT		 2124}
2125
2126module_init(wl3501_init_module);
2127module_exit(wl3501_exit_module);
2128
2129MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2130 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2131 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2132MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2133MODULE_LICENSE("GPL");
Clone of davem's net-next-2.6 tree