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wl3501: convert to internal net_device_stats
[linux-2.6-block.git] / drivers / net / wireless / wl3501_cs.c
CommitLineData
1da177e4
LT		 1/*
2 * WL3501 Wireless LAN PCMCIA Card Driver for Linux
3 * Written originally for Linux 2.0.30 by Fox Chen, mhchen@golf.ccl.itri.org.tw
4 * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
5 * Wireless extensions in 2.4 by Gustavo Niemeyer <niemeyer@conectiva.com>
6 *
7 * References used by Fox Chen while writing the original driver for 2.0.30:
8 *
9 * 1. WL24xx packet drivers (tooasm.asm)
10 * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO
11 * 3. IEEE 802.11
12 * 4. Linux network driver (/usr/src/linux/drivers/net)
13 * 5. ISA card driver - wl24.c
14 * 6. Linux PCMCIA skeleton driver - skeleton.c
15 * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c
16 *
17 * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12
18 * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode.
19 * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null
20 * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct
21 * ETHER/IP/UDP/TCP header, and acknowledgement overhead)
22 *
23 * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode,
24 * 173 Kbytes/s in TCP.
25 *
26 * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode
27 * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60)
28 */
1da177e4 29
1da177e4
LT		 30#include <linux/delay.h>
31#include <linux/types.h>
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>
9ee677c2 47#include <linux/ieee80211.h>
1da177e4
LT		 48
49#include <net/iw_handler.h>
50
1da177e4
LT		 51#include <pcmcia/cs_types.h>
52#include <pcmcia/cs.h>
53#include <pcmcia/cistpl.h>
54#include <pcmcia/cisreg.h>
55#include <pcmcia/ds.h>
56
57#include <asm/io.h>
58#include <asm/uaccess.h>
59#include <asm/system.h>
60
61#include "wl3501.h"
62
63#ifndef __i386__
64#define slow_down_io()
65#endif
66
67/* For rough constant delay */
68#define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
69
70/*
71 * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If you do not
72 * define PCMCIA_DEBUG at all, all the debug code will be left out. If you
73 * compile with PCMCIA_DEBUG=0, the debug code will be present but disabled --
74 * but it can then be enabled for specific modules at load time with a
75 * 'pc_debug=#' option to insmod.
76 */
77#define PCMCIA_DEBUG 0
78#ifdef PCMCIA_DEBUG
79static int pc_debug = PCMCIA_DEBUG;
80module_param(pc_debug, int, 0);
81#define dprintk(n, format, args...) \
82 { if (pc_debug > (n)) \
c94c93da 83 printk(KERN_INFO "%s: " format "\n", __func__ , ##args); }
1da177e4
LT		 84#else
85#define dprintk(n, format, args...)
86#endif
87
88#define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
89#define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
90#define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
91
92#define WL3501_RELEASE_TIMEOUT (25 * HZ)
93#define WL3501_MAX_ADHOC_TRIES 16
94
95#define WL3501_RESUME 0
96#define WL3501_SUSPEND 1
97
98/*
99 * The event() function is this driver's Card Services event handler. It will
100 * be called by Card Services when an appropriate card status event is
101 * received. The config() and release() entry points are used to configure or
102 * release a socket, in response to card insertion and ejection events. They
103 * are invoked from the wl24 event handler.
104 */
15b99ac1 105static int wl3501_config(struct pcmcia_device *link);
fba395ee 106static void wl3501_release(struct pcmcia_device *link);
1da177e4
LT		 107
108/*
109 * The dev_info variable is the "key" that is used to match up this
110 * device driver with appropriate cards, through the card configuration
111 * database.
112 */
113static dev_info_t wl3501_dev_info = "wl3501_cs";
114
1da177e4
LT		 115static const struct {
116 int reg_domain;
117 int min, max, deflt;
118} iw_channel_table[] = {
119 {
120 .reg_domain = IW_REG_DOMAIN_FCC,
121 .min = 1,
122 .max = 11,
123 .deflt = 1,
124 },
125 {
126 .reg_domain = IW_REG_DOMAIN_DOC,
127 .min = 1,
128 .max = 11,
129 .deflt = 1,
130 },
131 {
132 .reg_domain = IW_REG_DOMAIN_ETSI,
133 .min = 1,
134 .max = 13,
135 .deflt = 1,
136 },
137 {
138 .reg_domain = IW_REG_DOMAIN_SPAIN,
139 .min = 10,
140 .max = 11,
141 .deflt = 10,
142 },
143 {
144 .reg_domain = IW_REG_DOMAIN_FRANCE,
145 .min = 10,
146 .max = 13,
147 .deflt = 10,
148 },
149 {
150 .reg_domain = IW_REG_DOMAIN_MKK,
151 .min = 14,
152 .max = 14,
153 .deflt = 14,
154 },
155 {
156 .reg_domain = IW_REG_DOMAIN_MKK1,
157 .min = 1,
158 .max = 14,
159 .deflt = 1,
160 },
161 {
162 .reg_domain = IW_REG_DOMAIN_ISRAEL,
163 .min = 3,
164 .max = 9,
165 .deflt = 9,
166 },
167};
168
169/**
170 * iw_valid_channel - validate channel in regulatory domain
171 * @reg_comain - regulatory domain
172 * @channel - channel to validate
173 *
174 * Returns 0 if invalid in the specified regulatory domain, non-zero if valid.
175 */
176static int iw_valid_channel(int reg_domain, int channel)
177{
178 int i, rc = 0;
179
180 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
181 if (reg_domain == iw_channel_table[i].reg_domain) {
182 rc = channel >= iw_channel_table[i].min &&
183 channel <= iw_channel_table[i].max;
184 break;
185 }
186 return rc;
187}
188
189/**
190 * iw_default_channel - get default channel for a regulatory domain
191 * @reg_comain - regulatory domain
192 *
193 * Returns the default channel for a regulatory domain
194 */
195static int iw_default_channel(int reg_domain)
196{
197 int i, rc = 1;
198
199 for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
200 if (reg_domain == iw_channel_table[i].reg_domain) {
201 rc = iw_channel_table[i].deflt;
202 break;
203 }
204 return rc;
205}
206
207static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
208 struct iw_mgmt_info_element *el,
209 void *value, int len)
210{
211 el->id = id;
212 el->len = len;
213 memcpy(el->data, value, len);
214}
215
216static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
217 struct iw_mgmt_info_element *from)
218{
219 iw_set_mgmt_info_element(from->id, to, from->data, from->len);
220}
221
1da177e4
LT		 222static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
223{
224 wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
225}
226
227/*
228 * Get Ethernet MAC addresss.
229 *
230 * WARNING: We switch to FPAGE0 and switc back again.
231 * Making sure there is no other WL function beening called by ISR.
232 */
233static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
234{
235 int base_addr = this->base_addr;
236
237 /* get MAC addr */
238 wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
239 wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
240 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
241
242 /* wait for reading EEPROM */
243 WL3501_NOPLOOP(100);
244 this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
245 WL3501_NOPLOOP(100);
246 this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
247 WL3501_NOPLOOP(100);
248 this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
249 WL3501_NOPLOOP(100);
250 this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
251 WL3501_NOPLOOP(100);
252 this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
253 WL3501_NOPLOOP(100);
254 this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
255 WL3501_NOPLOOP(100);
256 this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
257 WL3501_NOPLOOP(100);
258 wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
259 wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
260 wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
261 WL3501_NOPLOOP(100);
262 this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
263 WL3501_NOPLOOP(100);
264 this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
265 /* switch to SRAM Page 0 (for safety) */
266 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
267
268 /* The MAC addr should be 00:60:... */
269 return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
270}
271
272/**
273 * wl3501_set_to_wla - Move 'size' bytes from PC to card
274 * @dest: Card addressing space
275 * @src: PC addressing space
276 * @size: Bytes to move
277 *
278 * Move 'size' bytes from PC to card. (Shouldn't be interrupted)
279 */
ff1d2767
JM		 280static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
281 int size)
1da177e4
LT		 282{
283 /* switch to SRAM Page 0 */
284 wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
285 WL3501_BSS_SPAGE0);
286 /* set LMAL and LMAH */
287 wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
288 wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
289
290 /* rep out to Port A */
291 wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
292}
293
294/**
295 * wl3501_get_from_wla - Move 'size' bytes from card to PC
296 * @src: Card addressing space
297 * @dest: PC addressing space
298 * @size: Bytes to move
299 *
300 * Move 'size' bytes from card to PC. (Shouldn't be interrupted)
301 */
ff1d2767
JM		 302static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
303 int size)
1da177e4
LT		 304{
305 /* switch to SRAM Page 0 */
306 wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
307 WL3501_BSS_SPAGE0);
308 /* set LMAL and LMAH */
309 wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
310 wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
311
312 /* rep get from Port A */
313 insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
314}
315
316/*
317 * Get/Allocate a free Tx Data Buffer
318 *
319 * *--------------*-----------------*----------------------------------*
320 * | PLCP | MAC Header | DST SRC Data ... |
321 * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
322 * *--------------*-----------------*----------------------------------*
323 * \ \- IEEE 802.11 -/ \-------------- len --------------/
324 * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
325 *
326 * Return = Postion in Card
327 */
328static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
329{
330 u16 next, blk_cnt = 0, zero = 0;
331 u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
332 u16 ret = 0;
333
334 if (full_len > this->tx_buffer_cnt * 254)
335 goto out;
336 ret = this->tx_buffer_head;
337 while (full_len) {
338 if (full_len < 254)
339 full_len = 0;
340 else
341 full_len -= 254;
342 wl3501_get_from_wla(this, this->tx_buffer_head, &next,
343 sizeof(next));
344 if (!full_len)
345 wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
346 sizeof(zero));
347 this->tx_buffer_head = next;
348 blk_cnt++;
349 /* if buffer is not enough */
350 if (!next && full_len) {
351 this->tx_buffer_head = ret;
352 ret = 0;
353 goto out;
354 }
355 }
356 this->tx_buffer_cnt -= blk_cnt;
357out:
358 return ret;
359}
360
361/*
362 * Free an allocated Tx Buffer. ptr must be correct position.
363 */
364static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
365{
366 /* check if all space is not free */
367 if (!this->tx_buffer_head)
368 this->tx_buffer_head = ptr;
369 else
370 wl3501_set_to_wla(this, this->tx_buffer_tail,
371 &ptr, sizeof(ptr));
372 while (ptr) {
373 u16 next;
374
375 this->tx_buffer_cnt++;
376 wl3501_get_from_wla(this, ptr, &next, sizeof(next));
377 this->tx_buffer_tail = ptr;
378 ptr = next;
379 }
380}
381
382static int wl3501_esbq_req_test(struct wl3501_card *this)
383{
384 u8 tmp;
385
386 wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
387 return tmp & 0x80;
388}
389
390static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
391{
392 u16 tmp = 0;
393
394 wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
395 wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
396 this->esbq_req_head += 4;
397 if (this->esbq_req_head >= this->esbq_req_end)
398 this->esbq_req_head = this->esbq_req_start;
399}
400
401static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
402{
403 int rc = -EIO;
404
405 if (wl3501_esbq_req_test(this)) {
406 u16 ptr = wl3501_get_tx_buffer(this, sig_size);
407 if (ptr) {
408 wl3501_set_to_wla(this, ptr, sig, sig_size);
409 wl3501_esbq_req(this, &ptr);
410 rc = 0;
411 }
412 }
413 return rc;
414}
415
416static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
417 void *bf, int size)
418{
419 struct wl3501_get_req sig = {
420 .sig_id = WL3501_SIG_GET_REQ,
421 .mib_attrib = index,
422 };
423 unsigned long flags;
424 int rc = -EIO;
425
426 spin_lock_irqsave(&this->lock, flags);
427 if (wl3501_esbq_req_test(this)) {
428 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
429 if (ptr) {
430 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
431 wl3501_esbq_req(this, &ptr);
432 this->sig_get_confirm.mib_status = 255;
433 spin_unlock_irqrestore(&this->lock, flags);
434 rc = wait_event_interruptible(this->wait,
435 this->sig_get_confirm.mib_status != 255);
436 if (!rc)
437 memcpy(bf, this->sig_get_confirm.mib_value,
438 size);
439 goto out;
440 }
441 }
442 spin_unlock_irqrestore(&this->lock, flags);
443out:
444 return rc;
445}
446
447static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
448{
449 struct wl3501_pwr_mgmt_req sig = {
450 .sig_id = WL3501_SIG_PWR_MGMT_REQ,
451 .pwr_save = suspend,
452 .wake_up = !suspend,
453 .receive_dtims = 10,
454 };
455 unsigned long flags;
456 int rc = -EIO;
457
458 spin_lock_irqsave(&this->lock, flags);
459 if (wl3501_esbq_req_test(this)) {
460 u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
461 if (ptr) {
462 wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
463 wl3501_esbq_req(this, &ptr);
464 this->sig_pwr_mgmt_confirm.status = 255;
465 spin_unlock_irqrestore(&this->lock, flags);
466 rc = wait_event_interruptible(this->wait,
467 this->sig_pwr_mgmt_confirm.status != 255);
c94c93da 468 printk(KERN_INFO "%s: %s status=%d\n", __func__,
1da177e4
LT		 469 suspend ? "suspend" : "resume",
470 this->sig_pwr_mgmt_confirm.status);
471 goto out;
472 }
473 }
474 spin_unlock_irqrestore(&this->lock, flags);
475out:
476 return rc;
477}
478
479/**
480 * wl3501_send_pkt - Send a packet.
481 * @this - card
482 *
483 * Send a packet.
484 *
485 * data = Ethernet raw frame. (e.g. data[0] - data[5] is Dest MAC Addr,
486 * data[6] - data[11] is Src MAC Addr)
487 * Ref: IEEE 802.11
488 */
489static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
490{
491 u16 bf, sig_bf, next, tmplen, pktlen;
492 struct wl3501_md_req sig = {
493 .sig_id = WL3501_SIG_MD_REQ,
494 };
495 u8 *pdata = (char *)data;
496 int rc = -EIO;
497
498 if (wl3501_esbq_req_test(this)) {
499 sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
500 rc = -ENOMEM;
501 if (!sig_bf) /* No free buffer available */
502 goto out;
503 bf = wl3501_get_tx_buffer(this, len + 26 + 24);
504 if (!bf) {
505 /* No free buffer available */
506 wl3501_free_tx_buffer(this, sig_bf);
507 goto out;
508 }
509 rc = 0;
510 memcpy(&sig.daddr[0], pdata, 12);
511 pktlen = len - 12;
512 pdata += 12;
513 sig.data = bf;
514 if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
515 u8 addr4[ETH_ALEN] = {
516 [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
517 };
518
519 wl3501_set_to_wla(this, bf + 2 +
520 offsetof(struct wl3501_tx_hdr, addr4),
521 addr4, sizeof(addr4));
522 sig.size = pktlen + 24 + 4 + 6;
523 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
524 tmplen = 254 - sizeof(struct wl3501_tx_hdr);
525 pktlen -= tmplen;
526 } else {
527 tmplen = pktlen;
528 pktlen = 0;
529 }
530 wl3501_set_to_wla(this,
531 bf + 2 + sizeof(struct wl3501_tx_hdr),
532 pdata, tmplen);
533 pdata += tmplen;
534 wl3501_get_from_wla(this, bf, &next, sizeof(next));
535 bf = next;
536 } else {
537 sig.size = pktlen + 24 + 4 - 2;
538 pdata += 2;
539 pktlen -= 2;
540 if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
541 tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
542 pktlen -= tmplen;
543 } else {
544 tmplen = pktlen;
545 pktlen = 0;
546 }
547 wl3501_set_to_wla(this, bf + 2 +
548 offsetof(struct wl3501_tx_hdr, addr4),
549 pdata, tmplen);
550 pdata += tmplen;
551 wl3501_get_from_wla(this, bf, &next, sizeof(next));
552 bf = next;
553 }
554 while (pktlen > 0) {
555 if (pktlen > 254) {
556 tmplen = 254;
557 pktlen -= 254;
558 } else {
559 tmplen = pktlen;
560 pktlen = 0;
561 }
562 wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
563 pdata += tmplen;
564 wl3501_get_from_wla(this, bf, &next, sizeof(next));
565 bf = next;
566 }
567 wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
568 wl3501_esbq_req(this, &sig_bf);
569 }
570out:
571 return rc;
572}
573
574static int wl3501_mgmt_resync(struct wl3501_card *this)
575{
576 struct wl3501_resync_req sig = {
577 .sig_id = WL3501_SIG_RESYNC_REQ,
578 };
579
580 return wl3501_esbq_exec(this, &sig, sizeof(sig));
581}
582
583static inline int wl3501_fw_bss_type(struct wl3501_card *this)
584{
585 return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
586 WL3501_NET_TYPE_ADHOC;
587}
588
589static inline int wl3501_fw_cap_info(struct wl3501_card *this)
590{
591 return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
592 WL3501_MGMT_CAPABILITY_IBSS;
593}
594
595static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
596{
597 struct wl3501_scan_req sig = {
598 .sig_id = WL3501_SIG_SCAN_REQ,
599 .scan_type = WL3501_SCAN_TYPE_ACTIVE,
600 .probe_delay = 0x10,
601 .min_chan_time = chan_time,
602 .max_chan_time = chan_time,
603 .bss_type = wl3501_fw_bss_type(this),
604 };
605
606 this->bss_cnt = this->join_sta_bss = 0;
607 return wl3501_esbq_exec(this, &sig, sizeof(sig));
608}
609
610static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
611{
612 struct wl3501_join_req sig = {
613 .sig_id = WL3501_SIG_JOIN_REQ,
614 .timeout = 10,
615 .ds_pset = {
616 .el = {
617 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
618 .len = 1,
619 },
620 .chan = this->chan,
621 },
622 };
623
624 memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
625 return wl3501_esbq_exec(this, &sig, sizeof(sig));
626}
627
628static int wl3501_mgmt_start(struct wl3501_card *this)
629{
630 struct wl3501_start_req sig = {
631 .sig_id = WL3501_SIG_START_REQ,
632 .beacon_period = 400,
633 .dtim_period = 1,
634 .ds_pset = {
635 .el = {
636 .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
637 .len = 1,
638 },
639 .chan = this->chan,
640 },
641 .bss_basic_rset = {
642 .el = {
643 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
644 .len = 2,
645 },
646 .data_rate_labels = {
647 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
648 IW_MGMT_RATE_LABEL_1MBIT,
649 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
650 IW_MGMT_RATE_LABEL_2MBIT,
651 },
652 },
653 .operational_rset = {
654 .el = {
655 .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
656 .len = 2,
657 },
658 .data_rate_labels = {
659 [0] = IW_MGMT_RATE_LABEL_MANDATORY |
660 IW_MGMT_RATE_LABEL_1MBIT,
661 [1] = IW_MGMT_RATE_LABEL_MANDATORY |
662 IW_MGMT_RATE_LABEL_2MBIT,
663 },
664 },
665 .ibss_pset = {
666 .el = {
667 .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
668 .len = 2,
669 },
670 .atim_window = 10,
671 },
672 .bss_type = wl3501_fw_bss_type(this),
673 .cap_info = wl3501_fw_cap_info(this),
674 };
675
676 iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
677 iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
678 return wl3501_esbq_exec(this, &sig, sizeof(sig));
679}
680
681static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
682{
683 u16 i = 0;
684 int matchflag = 0;
685 struct wl3501_scan_confirm sig;
686
687 dprintk(3, "entry");
688 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
689 if (sig.status == WL3501_STATUS_SUCCESS) {
690 dprintk(3, "success");
691 if ((this->net_type == IW_MODE_INFRA &&
692 (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
693 (this->net_type == IW_MODE_ADHOC &&
694 (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
695 this->net_type == IW_MODE_AUTO) {
696 if (!this->essid.el.len)
697 matchflag = 1;
698 else if (this->essid.el.len == 3 &&
699 !memcmp(this->essid.essid, "ANY", 3))
700 matchflag = 1;
701 else if (this->essid.el.len != sig.ssid.el.len)
702 matchflag = 0;
703 else if (memcmp(this->essid.essid, sig.ssid.essid,
704 this->essid.el.len))
705 matchflag = 0;
706 else
707 matchflag = 1;
708 if (matchflag) {
709 for (i = 0; i < this->bss_cnt; i++) {
710 if (!memcmp(this->bss_set[i].bssid,
711 sig.bssid, ETH_ALEN)) {
712 matchflag = 0;
713 break;
714 }
715 }
716 }
717 if (matchflag && (i < 20)) {
718 memcpy(&this->bss_set[i].beacon_period,
719 &sig.beacon_period, 73);
720 this->bss_cnt++;
721 this->rssi = sig.rssi;
722 }
723 }
724 } else if (sig.status == WL3501_STATUS_TIMEOUT) {
725 dprintk(3, "timeout");
726 this->join_sta_bss = 0;
727 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
728 if (!wl3501_mgmt_join(this, i))
729 break;
730 this->join_sta_bss = i;
731 if (this->join_sta_bss == this->bss_cnt) {
732 if (this->net_type == IW_MODE_INFRA)
733 wl3501_mgmt_scan(this, 100);
734 else {
735 this->adhoc_times++;
736 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
737 wl3501_mgmt_start(this);
738 else
739 wl3501_mgmt_scan(this, 100);
740 }
741 }
742 }
743}
744
745/**
746 * wl3501_block_interrupt - Mask interrupt from SUTRO
747 * @this - card
748 *
749 * Mask interrupt from SUTRO. (i.e. SUTRO cannot interrupt the HOST)
750 * Return: 1 if interrupt is originally enabled
751 */
752static int wl3501_block_interrupt(struct wl3501_card *this)
753{
754 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
755 u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
756 WL3501_GCR_ENECINT));
757
758 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
759 return old & WL3501_GCR_ENECINT;
760}
761
762/**
763 * wl3501_unblock_interrupt - Enable interrupt from SUTRO
764 * @this - card
765 *
766 * Enable interrupt from SUTRO. (i.e. SUTRO can interrupt the HOST)
767 * Return: 1 if interrupt is originally enabled
768 */
769static int wl3501_unblock_interrupt(struct wl3501_card *this)
770{
771 u8 old = inb(this->base_addr + WL3501_NIC_GCR);
772 u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
773 WL3501_GCR_ENECINT;
774
775 wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
776 return old & WL3501_GCR_ENECINT;
777}
778
779/**
780 * wl3501_receive - Receive data from Receive Queue.
781 *
782 * Receive data from Receive Queue.
783 *
784 * @this: card
785 * @bf: address of host
786 * @size: size of buffer.
787 */
788static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
789{
790 u16 next_addr, next_addr1;
791 u8 *data = bf + 12;
792
793 size -= 12;
794 wl3501_get_from_wla(this, this->start_seg + 2,
795 &next_addr, sizeof(next_addr));
796 if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
797 wl3501_get_from_wla(this,
798 this->start_seg +
799 sizeof(struct wl3501_rx_hdr), data,
800 WL3501_BLKSZ -
801 sizeof(struct wl3501_rx_hdr));
802 size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
803 data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
804 } else {
805 wl3501_get_from_wla(this,
806 this->start_seg +
807 sizeof(struct wl3501_rx_hdr),
808 data, size);
809 size = 0;
810 }
811 while (size > 0) {
812 if (size > WL3501_BLKSZ - 5) {
813 wl3501_get_from_wla(this, next_addr + 5, data,
814 WL3501_BLKSZ - 5);
815 size -= WL3501_BLKSZ - 5;
816 data += WL3501_BLKSZ - 5;
817 wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
818 sizeof(next_addr1));
819 next_addr = next_addr1;
820 } else {
821 wl3501_get_from_wla(this, next_addr + 5, data, size);
822 size = 0;
823 }
824 }
825 return 0;
826}
827
828static void wl3501_esbq_req_free(struct wl3501_card *this)
829{
830 u8 tmp;
831 u16 addr;
832
833 if (this->esbq_req_head == this->esbq_req_tail)
834 goto out;
835 wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
836 if (!(tmp & 0x80))
837 goto out;
838 wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
839 wl3501_free_tx_buffer(this, addr);
840 this->esbq_req_tail += 4;
841 if (this->esbq_req_tail >= this->esbq_req_end)
842 this->esbq_req_tail = this->esbq_req_start;
843out:
844 return;
845}
846
847static int wl3501_esbq_confirm(struct wl3501_card *this)
848{
849 u8 tmp;
850
851 wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
852 return tmp & 0x80;
853}
854
855static void wl3501_online(struct net_device *dev)
856{
6dbc9c89 857 struct wl3501_card *this = netdev_priv(dev);
1da177e4 858
e174961c
JB		 859 printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
860 dev->name, this->bssid);
1da177e4
LT		 861 netif_wake_queue(dev);
862}
863
864static void wl3501_esbq_confirm_done(struct wl3501_card *this)
865{
866 u8 tmp = 0;
867
868 wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
869 this->esbq_confirm += 4;
870 if (this->esbq_confirm >= this->esbq_confirm_end)
871 this->esbq_confirm = this->esbq_confirm_start;
872}
873
874static int wl3501_mgmt_auth(struct wl3501_card *this)
875{
876 struct wl3501_auth_req sig = {
877 .sig_id = WL3501_SIG_AUTH_REQ,
878 .type = WL3501_SYS_TYPE_OPEN,
879 .timeout = 1000,
880 };
881
882 dprintk(3, "entry");
883 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
884 return wl3501_esbq_exec(this, &sig, sizeof(sig));
885}
886
887static int wl3501_mgmt_association(struct wl3501_card *this)
888{
889 struct wl3501_assoc_req sig = {
890 .sig_id = WL3501_SIG_ASSOC_REQ,
891 .timeout = 1000,
892 .listen_interval = 5,
893 .cap_info = this->cap_info,
894 };
895
896 dprintk(3, "entry");
897 memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
898 return wl3501_esbq_exec(this, &sig, sizeof(sig));
899}
900
901static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
902{
6dbc9c89 903 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 904 struct wl3501_join_confirm sig;
905
906 dprintk(3, "entry");
907 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
908 if (sig.status == WL3501_STATUS_SUCCESS) {
909 if (this->net_type == IW_MODE_INFRA) {
910 if (this->join_sta_bss < this->bss_cnt) {
911 const int i = this->join_sta_bss;
912 memcpy(this->bssid,
913 this->bss_set[i].bssid, ETH_ALEN);
914 this->chan = this->bss_set[i].ds_pset.chan;
915 iw_copy_mgmt_info_element(&this->keep_essid.el,
916 &this->bss_set[i].ssid.el);
917 wl3501_mgmt_auth(this);
918 }
919 } else {
920 const int i = this->join_sta_bss;
921
922 memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
923 this->chan = this->bss_set[i].ds_pset.chan;
924 iw_copy_mgmt_info_element(&this->keep_essid.el,
925 &this->bss_set[i].ssid.el);
926 wl3501_online(dev);
927 }
928 } else {
929 int i;
930 this->join_sta_bss++;
931 for (i = this->join_sta_bss; i < this->bss_cnt; i++)
932 if (!wl3501_mgmt_join(this, i))
933 break;
934 this->join_sta_bss = i;
935 if (this->join_sta_bss == this->bss_cnt) {
936 if (this->net_type == IW_MODE_INFRA)
937 wl3501_mgmt_scan(this, 100);
938 else {
939 this->adhoc_times++;
940 if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
941 wl3501_mgmt_start(this);
942 else
943 wl3501_mgmt_scan(this, 100);
944 }
945 }
946 }
947}
948
949static inline void wl3501_alarm_interrupt(struct net_device *dev,
950 struct wl3501_card *this)
951{
952 if (this->net_type == IW_MODE_INFRA) {
953 printk(KERN_INFO "Wireless LAN offline\n");
954 netif_stop_queue(dev);
955 wl3501_mgmt_resync(this);
956 }
957}
958
959static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
960 struct wl3501_card *this,
961 u16 addr)
962{
963 struct wl3501_md_confirm sig;
964
965 dprintk(3, "entry");
966 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
967 wl3501_free_tx_buffer(this, sig.data);
968 if (netif_queue_stopped(dev))
969 netif_wake_queue(dev);
970}
971
972static inline void wl3501_md_ind_interrupt(struct net_device *dev,
973 struct wl3501_card *this, u16 addr)
974{
975 struct wl3501_md_ind sig;
976 struct sk_buff *skb;
977 u8 rssi, addr4[ETH_ALEN];
978 u16 pkt_len;
979
980 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
981 this->start_seg = sig.data;
982 wl3501_get_from_wla(this,
983 sig.data + offsetof(struct wl3501_rx_hdr, rssi),
984 &rssi, sizeof(rssi));
985 this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
986
987 wl3501_get_from_wla(this,
988 sig.data +
989 offsetof(struct wl3501_rx_hdr, addr4),
990 &addr4, sizeof(addr4));
991 if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
992 addr4[2] == 0x03 && addr4[4] == 0x00)) {
993 printk(KERN_INFO "Insupported packet type!\n");
994 return;
995 }
996 pkt_len = sig.size + 12 - 24 - 4 - 6;
997
998 skb = dev_alloc_skb(pkt_len + 5);
999
1000 if (!skb) {
1001 printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
1002 dev->name, pkt_len);
4255d411 1003 dev->stats.rx_dropped++;
1da177e4
LT		 1004 } else {
1005 skb->dev = dev;
1006 skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
8c7b7faa 1007 skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
1da177e4
LT		 1008 wl3501_receive(this, skb->data, pkt_len);
1009 skb_put(skb, pkt_len);
1010 skb->protocol = eth_type_trans(skb, dev);
4255d411
SH		 1011 dev->stats.rx_packets++;
1012 dev->stats.rx_bytes += skb->len;
1da177e4
LT		 1013 netif_rx(skb);
1014 }
1015}
1016
1017static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
1018 u16 addr, void *sig, int size)
1019{
1020 dprintk(3, "entry");
1021 wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
1022 sizeof(this->sig_get_confirm));
1023 wake_up(&this->wait);
1024}
1025
1026static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
1027 struct wl3501_card *this,
1028 u16 addr)
1029{
1030 struct wl3501_start_confirm sig;
1031
1032 dprintk(3, "entry");
1033 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1034 if (sig.status == WL3501_STATUS_SUCCESS)
1035 netif_wake_queue(dev);
1036}
1037
1038static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1039 u16 addr)
1040{
6dbc9c89 1041 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1042 struct wl3501_assoc_confirm sig;
1043
1044 dprintk(3, "entry");
1045 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1046
1047 if (sig.status == WL3501_STATUS_SUCCESS)
1048 wl3501_online(dev);
1049}
1050
1051static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1052 u16 addr)
1053{
1054 struct wl3501_auth_confirm sig;
1055
1056 dprintk(3, "entry");
1057 wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1058
1059 if (sig.status == WL3501_STATUS_SUCCESS)
1060 wl3501_mgmt_association(this);
1061 else
1062 wl3501_mgmt_resync(this);
1063}
1064
1065static inline void wl3501_rx_interrupt(struct net_device *dev)
1066{
1067 int morepkts;
1068 u16 addr;
1069 u8 sig_id;
6dbc9c89 1070 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1071
1072 dprintk(3, "entry");
1073loop:
1074 morepkts = 0;
1075 if (!wl3501_esbq_confirm(this))
1076 goto free;
1077 wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1078 wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1079
1080 switch (sig_id) {
1081 case WL3501_SIG_DEAUTH_IND:
1082 case WL3501_SIG_DISASSOC_IND:
1083 case WL3501_SIG_ALARM:
1084 wl3501_alarm_interrupt(dev, this);
1085 break;
1086 case WL3501_SIG_MD_CONFIRM:
1087 wl3501_md_confirm_interrupt(dev, this, addr);
1088 break;
1089 case WL3501_SIG_MD_IND:
1090 wl3501_md_ind_interrupt(dev, this, addr);
1091 break;
1092 case WL3501_SIG_GET_CONFIRM:
1093 wl3501_get_confirm_interrupt(this, addr,
1094 &this->sig_get_confirm,
1095 sizeof(this->sig_get_confirm));
1096 break;
1097 case WL3501_SIG_PWR_MGMT_CONFIRM:
1098 wl3501_get_confirm_interrupt(this, addr,
1099 &this->sig_pwr_mgmt_confirm,
1100 sizeof(this->sig_pwr_mgmt_confirm));
1101 break;
1102 case WL3501_SIG_START_CONFIRM:
1103 wl3501_start_confirm_interrupt(dev, this, addr);
1104 break;
1105 case WL3501_SIG_SCAN_CONFIRM:
1106 wl3501_mgmt_scan_confirm(this, addr);
1107 break;
1108 case WL3501_SIG_JOIN_CONFIRM:
1109 wl3501_mgmt_join_confirm(dev, addr);
1110 break;
1111 case WL3501_SIG_ASSOC_CONFIRM:
1112 wl3501_assoc_confirm_interrupt(dev, addr);
1113 break;
1114 case WL3501_SIG_AUTH_CONFIRM:
1115 wl3501_auth_confirm_interrupt(this, addr);
1116 break;
1117 case WL3501_SIG_RESYNC_CONFIRM:
1118 wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1119 break;
1120 }
1121 wl3501_esbq_confirm_done(this);
1122 morepkts = 1;
1123 /* free request if necessary */
1124free:
1125 wl3501_esbq_req_free(this);
1126 if (morepkts)
1127 goto loop;
1128}
1129
1130static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1131{
1132 wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1133}
1134
1135/**
1136 * wl3501_interrupt - Hardware interrupt from card.
1137 * @irq - Interrupt number
1138 * @dev_id - net_device
1da177e4
LT		 1139 *
1140 * We must acknowledge the interrupt as soon as possible, and block the
1141 * interrupt from the same card immediately to prevent re-entry.
1142 *
1143 * Before accessing the Control_Status_Block, we must lock SUTRO first.
1144 * On the other hand, to prevent SUTRO from malfunctioning, we must
1145 * unlock the SUTRO as soon as possible.
1146 */
7d12e780 1147static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1da177e4 1148{
c31f28e7 1149 struct net_device *dev = dev_id;
1da177e4 1150 struct wl3501_card *this;
1da177e4 1151
c31f28e7 1152 this = netdev_priv(dev);
1da177e4
LT		 1153 spin_lock(&this->lock);
1154 wl3501_ack_interrupt(this);
1155 wl3501_block_interrupt(this);
1156 wl3501_rx_interrupt(dev);
1157 wl3501_unblock_interrupt(this);
1158 spin_unlock(&this->lock);
c31f28e7
JG		 1159
1160 return IRQ_HANDLED;
1da177e4
LT		 1161}
1162
1163static int wl3501_reset_board(struct wl3501_card *this)
1164{
1165 u8 tmp = 0;
1166 int i, rc = 0;
1167
1168 /* Coreset */
1169 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1170 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1171 wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1172
1173 /* Reset SRAM 0x480 to zero */
1174 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1175
1176 /* Start up */
1177 wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1178
1179 WL3501_NOPLOOP(1024 * 50);
1180
1181 wl3501_unblock_interrupt(this); /* acme: was commented */
1182
1183 /* Polling Self_Test_Status */
1184 for (i = 0; i < 10000; i++) {
1185 wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1186
1187 if (tmp == 'W') {
1188 /* firmware complete all test successfully */
1189 tmp = 'A';
1190 wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1191 goto out;
1192 }
1193 WL3501_NOPLOOP(10);
1194 }
c94c93da 1195 printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1da177e4
LT		 1196 rc = -ENODEV;
1197out:
1198 return rc;
1199}
1200
1201static int wl3501_init_firmware(struct wl3501_card *this)
1202{
1203 u16 ptr, next;
1204 int rc = wl3501_reset_board(this);
1205
1206 if (rc)
1207 goto fail;
1208 this->card_name[0] = '\0';
1209 wl3501_get_from_wla(this, 0x1a00,
1210 this->card_name, sizeof(this->card_name));
1211 this->card_name[sizeof(this->card_name) - 1] = '\0';
1212 this->firmware_date[0] = '\0';
1213 wl3501_get_from_wla(this, 0x1a40,
1214 this->firmware_date, sizeof(this->firmware_date));
1215 this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1216 /* Switch to SRAM Page 0 */
1217 wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1218 /* Read parameter from card */
1219 wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1220 wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1221 wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1222 wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1223 wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1224 wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1225 this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1226 this->esbq_req_end += this->esbq_req_start;
1227 this->esbq_confirm = this->esbq_confirm_start;
1228 this->esbq_confirm_end += this->esbq_confirm_start;
1229 /* Initial Tx Buffer */
1230 this->tx_buffer_cnt = 1;
1231 ptr = this->tx_buffer_head;
1232 next = ptr + WL3501_BLKSZ;
1233 while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1234 this->tx_buffer_cnt++;
1235 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1236 ptr = next;
1237 next = ptr + WL3501_BLKSZ;
1238 }
1239 rc = 0;
1240 next = 0;
1241 wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1242 this->tx_buffer_tail = ptr;
1243out:
1244 return rc;
1245fail:
c94c93da 1246 printk(KERN_WARNING "%s: failed!\n", __func__);
1da177e4
LT		 1247 goto out;
1248}
1249
1250static int wl3501_close(struct net_device *dev)
1251{
6dbc9c89 1252 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1253 int rc = -ENODEV;
1254 unsigned long flags;
fba395ee 1255 struct pcmcia_device *link;
fd238232 1256 link = this->p_dev;
1da177e4
LT		 1257
1258 spin_lock_irqsave(&this->lock, flags);
1da177e4
LT		 1259 link->open--;
1260
1261 /* Stop wl3501_hard_start_xmit() from now on */
1262 netif_stop_queue(dev);
1263 wl3501_ack_interrupt(this);
1264
1265 /* Mask interrupts from the SUTRO */
1266 wl3501_block_interrupt(this);
1267
1268 rc = 0;
1269 printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1da177e4
LT		 1270 spin_unlock_irqrestore(&this->lock, flags);
1271 return rc;
1272}
1273
1274/**
1275 * wl3501_reset - Reset the SUTRO.
1276 * @dev - network device
1277 *
1278 * It is almost the same as wl3501_open(). In fact, we may just wl3501_close()
1279 * and wl3501_open() again, but I wouldn't like to free_irq() when the driver
1280 * is running. It seems to be dangerous.
1281 */
1282static int wl3501_reset(struct net_device *dev)
1283{
6dbc9c89 1284 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1285 int rc = -ENODEV;
1286
1287 wl3501_block_interrupt(this);
1288
1289 if (wl3501_init_firmware(this)) {
1290 printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1291 dev->name);
1292 /* Free IRQ, and mark IRQ as unused */
1293 free_irq(dev->irq, dev);
1294 goto out;
1295 }
1296
1297 /*
1298 * Queue has to be started only when the Card is Started
1299 */
1300 netif_stop_queue(dev);
1301 this->adhoc_times = 0;
1302 wl3501_ack_interrupt(this);
1303 wl3501_unblock_interrupt(this);
1304 wl3501_mgmt_scan(this, 100);
1305 dprintk(1, "%s: device reset", dev->name);
1306 rc = 0;
1307out:
1308 return rc;
1309}
1310
1311static void wl3501_tx_timeout(struct net_device *dev)
1312{
6dbc9c89 1313 struct wl3501_card *this = netdev_priv(dev);
4255d411 1314 struct net_device_stats *stats = &dev->stats;
1da177e4
LT		 1315 unsigned long flags;
1316 int rc;
1317
1318 stats->tx_errors++;
1319 spin_lock_irqsave(&this->lock, flags);
1320 rc = wl3501_reset(dev);
1321 spin_unlock_irqrestore(&this->lock, flags);
1322 if (rc)
1323 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1324 dev->name, rc);
1325 else {
1326 dev->trans_start = jiffies;
1327 netif_wake_queue(dev);
1328 }
1329}
1330
1331/*
1332 * Return : 0 - OK
1333 * 1 - Could not transmit (dev_queue_xmit will queue it)
1334 * and try to sent it later
1335 */
1336static int wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1337{
1338 int enabled, rc;
6dbc9c89 1339 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1340 unsigned long flags;
1341
1342 spin_lock_irqsave(&this->lock, flags);
1343 enabled = wl3501_block_interrupt(this);
1344 dev->trans_start = jiffies;
1345 rc = wl3501_send_pkt(this, skb->data, skb->len);
1346 if (enabled)
1347 wl3501_unblock_interrupt(this);
1348 if (rc) {
4255d411 1349 ++dev->stats.tx_dropped;
1da177e4
LT		 1350 netif_stop_queue(dev);
1351 } else {
4255d411
SH		 1352 ++dev->stats.tx_packets;
1353 dev->stats.tx_bytes += skb->len;
1da177e4
LT		 1354 kfree_skb(skb);
1355
1356 if (this->tx_buffer_cnt < 2)
1357 netif_stop_queue(dev);
1358 }
1359 spin_unlock_irqrestore(&this->lock, flags);
1360 return rc;
1361}
1362
1363static int wl3501_open(struct net_device *dev)
1364{
1365 int rc = -ENODEV;
6dbc9c89 1366 struct wl3501_card *this = netdev_priv(dev);
1da177e4 1367 unsigned long flags;
fba395ee 1368 struct pcmcia_device *link;
fd238232 1369 link = this->p_dev;
1da177e4
LT		 1370
1371 spin_lock_irqsave(&this->lock, flags);
9940ec36 1372 if (!pcmcia_dev_present(link))
1da177e4
LT		 1373 goto out;
1374 netif_device_attach(dev);
1375 link->open++;
1376
1377 /* Initial WL3501 firmware */
1378 dprintk(1, "%s: Initialize WL3501 firmware...", dev->name);
1379 if (wl3501_init_firmware(this))
1380 goto fail;
1381 /* Initial device variables */
1382 this->adhoc_times = 0;
1383 /* Acknowledge Interrupt, for cleaning last state */
1384 wl3501_ack_interrupt(this);
1385
1386 /* Enable interrupt from card after all */
1387 wl3501_unblock_interrupt(this);
1388 wl3501_mgmt_scan(this, 100);
1389 rc = 0;
1390 dprintk(1, "%s: WL3501 opened", dev->name);
1391 printk(KERN_INFO "%s: Card Name: %s\n"
1392 "%s: Firmware Date: %s\n",
1393 dev->name, this->card_name,
1394 dev->name, this->firmware_date);
1395out:
1396 spin_unlock_irqrestore(&this->lock, flags);
1397 return rc;
1398fail:
1399 printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1400 goto out;
1401}
1402
ff1d2767 1403static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1da177e4 1404{
6dbc9c89 1405 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1406 struct iw_statistics *wstats = &this->wstats;
1407 u32 value; /* size checked: it is u32 */
1408
1409 memset(wstats, 0, sizeof(*wstats));
1410 wstats->status = netif_running(dev);
1411 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1412 &value, sizeof(value)))
1413 wstats->discard.code += value;
1414 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1415 &value, sizeof(value)))
1416 wstats->discard.code += value;
1417 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1418 &value, sizeof(value)))
1419 wstats->discard.code += value;
1420 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1421 &value, sizeof(value)))
1422 wstats->discard.retries = value;
1423 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1424 &value, sizeof(value)))
1425 wstats->discard.misc += value;
1426 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1427 &value, sizeof(value)))
1428 wstats->discard.misc += value;
1429 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1430 &value, sizeof(value)))
1431 wstats->discard.misc += value;
1432 if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1433 &value, sizeof(value)))
1434 wstats->discard.misc += value;
1435 return wstats;
1436}
1437
1438static void wl3501_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1439{
1440 strlcpy(info->driver, wl3501_dev_info, sizeof(info->driver));
1441}
1442
7282d491 1443static const struct ethtool_ops ops = {
1da177e4
LT		 1444 .get_drvinfo = wl3501_get_drvinfo
1445};
1446
1447/**
1448 * wl3501_detach - deletes a driver "instance"
1449 * @link - FILL_IN
1450 *
1451 * This deletes a driver "instance". The device is de-registered with Card
1452 * Services. If it has been released, all local data structures are freed.
1453 * Otherwise, the structures will be freed when the device is released.
1454 */
fba395ee 1455static void wl3501_detach(struct pcmcia_device *link)
1da177e4 1456{
cc3b4866 1457 struct net_device *dev = link->priv;
1da177e4 1458
1da177e4
LT		 1459 /* If the device is currently configured and active, we won't actually
1460 * delete it yet. Instead, it is marked so that when the release()
1461 * function is called, that will trigger a proper detach(). */
1462
e2d40963
DB		 1463 while (link->open > 0)
1464 wl3501_close(dev);
1da177e4 1465
e2d40963
DB		 1466 netif_device_detach(dev);
1467 wl3501_release(link);
1da177e4 1468
1da177e4
LT		 1469 if (link->priv)
1470 free_netdev(link->priv);
fd238232 1471
1da177e4
LT		 1472 return;
1473}
1474
1475static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1476 union iwreq_data *wrqu, char *extra)
1477{
1478 strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1479 return 0;
1480}
1481
1482static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1483 union iwreq_data *wrqu, char *extra)
1484{
6dbc9c89 1485 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1486 int channel = wrqu->freq.m;
1487 int rc = -EINVAL;
1488
1489 if (iw_valid_channel(this->reg_domain, channel)) {
1490 this->chan = channel;
1491 rc = wl3501_reset(dev);
1492 }
1493 return rc;
1494}
1495
1496static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1497 union iwreq_data *wrqu, char *extra)
1498{
6dbc9c89 1499 struct wl3501_card *this = netdev_priv(dev);
1da177e4 1500
9ee677c2 1501 wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000;
1da177e4
LT		 1502 wrqu->freq.e = 1;
1503 return 0;
1504}
1505
1506static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1507 union iwreq_data *wrqu, char *extra)
1508{
1509 int rc = -EINVAL;
1510
1511 if (wrqu->mode == IW_MODE_INFRA ||
1512 wrqu->mode == IW_MODE_ADHOC ||
1513 wrqu->mode == IW_MODE_AUTO) {
6dbc9c89 1514 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1515
1516 this->net_type = wrqu->mode;
1517 rc = wl3501_reset(dev);
1518 }
1519 return rc;
1520}
1521
1522static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1523 union iwreq_data *wrqu, char *extra)
1524{
6dbc9c89 1525 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1526
1527 wrqu->mode = this->net_type;
1528 return 0;
1529}
1530
1531static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1532 union iwreq_data *wrqu, char *extra)
1533{
6dbc9c89 1534 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1535
1536 wrqu->sens.value = this->rssi;
1537 wrqu->sens.disabled = !wrqu->sens.value;
1538 wrqu->sens.fixed = 1;
1539 return 0;
1540}
1541
1542static int wl3501_get_range(struct net_device *dev,
1543 struct iw_request_info *info,
1544 union iwreq_data *wrqu, char *extra)
1545{
1546 struct iw_range *range = (struct iw_range *)extra;
1547
1548 /* Set the length (very important for backward compatibility) */
1549 wrqu->data.length = sizeof(*range);
1550
1551 /* Set all the info we don't care or don't know about to zero */
1552 memset(range, 0, sizeof(*range));
1553
1554 /* Set the Wireless Extension versions */
1555 range->we_version_compiled = WIRELESS_EXT;
1556 range->we_version_source = 1;
1557 range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1558 /* FIXME: study the code to fill in more fields... */
1559 return 0;
1560}
1561
1562static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1563 union iwreq_data *wrqu, char *extra)
1564{
6dbc9c89 1565 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1566 static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
1567 int rc = -EINVAL;
1568
1569 /* FIXME: we support other ARPHRDs...*/
1570 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1571 goto out;
1572 if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
1573 /* FIXME: rescan? */
1574 } else
1575 memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1576 /* FIXME: rescan? deassoc & scan? */
1577 rc = 0;
1578out:
1579 return rc;
1580}
1581
1582static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1583 union iwreq_data *wrqu, char *extra)
1584{
6dbc9c89 1585 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1586
1587 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1588 memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1589 return 0;
1590}
1591
1592static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1593 union iwreq_data *wrqu, char *extra)
1594{
1595 /*
1596 * FIXME: trigger scanning with a reset, yes, I'm lazy
1597 */
1598 return wl3501_reset(dev);
1599}
1600
1601static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1602 union iwreq_data *wrqu, char *extra)
1603{
6dbc9c89 1604 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1605 int i;
1606 char *current_ev = extra;
1607 struct iw_event iwe;
1608
1609 for (i = 0; i < this->bss_cnt; ++i) {
1610 iwe.cmd = SIOCGIWAP;
1611 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1612 memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
ccc58057 1613 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1614 extra + IW_SCAN_MAX_DATA,
1615 &iwe, IW_EV_ADDR_LEN);
1616 iwe.cmd = SIOCGIWESSID;
1617 iwe.u.data.flags = 1;
1618 iwe.u.data.length = this->bss_set[i].ssid.el.len;
ccc58057 1619 current_ev = iwe_stream_add_point(info, current_ev,
1da177e4
LT		 1620 extra + IW_SCAN_MAX_DATA,
1621 &iwe,
1622 this->bss_set[i].ssid.essid);
1623 iwe.cmd = SIOCGIWMODE;
1624 iwe.u.mode = this->bss_set[i].bss_type;
ccc58057 1625 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1626 extra + IW_SCAN_MAX_DATA,
1627 &iwe, IW_EV_UINT_LEN);
1628 iwe.cmd = SIOCGIWFREQ;
1629 iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1630 iwe.u.freq.e = 0;
ccc58057 1631 current_ev = iwe_stream_add_event(info, current_ev,
1da177e4
LT		 1632 extra + IW_SCAN_MAX_DATA,
1633 &iwe, IW_EV_FREQ_LEN);
1634 iwe.cmd = SIOCGIWENCODE;
1635 if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1636 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1637 else
1638 iwe.u.data.flags = IW_ENCODE_DISABLED;
1639 iwe.u.data.length = 0;
ccc58057 1640 current_ev = iwe_stream_add_point(info, current_ev,
1da177e4
LT		 1641 extra + IW_SCAN_MAX_DATA,
1642 &iwe, NULL);
1643 }
1644 /* Length of data */
1645 wrqu->data.length = (current_ev - extra);
1646 wrqu->data.flags = 0; /* FIXME: set properly these flags */
1647 return 0;
1648}
1649
1650static int wl3501_set_essid(struct net_device *dev,
1651 struct iw_request_info *info,
1652 union iwreq_data *wrqu, char *extra)
1653{
6dbc9c89 1654 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1655
1656 if (wrqu->data.flags) {
1657 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1658 &this->essid.el,
1659 extra, wrqu->data.length);
1660 } else { /* We accept any ESSID */
1661 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1662 &this->essid.el, "ANY", 3);
1663 }
1664 return wl3501_reset(dev);
1665}
1666
1667static int wl3501_get_essid(struct net_device *dev,
1668 struct iw_request_info *info,
1669 union iwreq_data *wrqu, char *extra)
1670{
6dbc9c89 1671 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1672 unsigned long flags;
1673
1674 spin_lock_irqsave(&this->lock, flags);
1675 wrqu->essid.flags = 1;
1676 wrqu->essid.length = this->essid.el.len;
1677 memcpy(extra, this->essid.essid, this->essid.el.len);
1678 spin_unlock_irqrestore(&this->lock, flags);
1679 return 0;
1680}
1681
1682static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1683 union iwreq_data *wrqu, char *extra)
1684{
6dbc9c89 1685 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1686
1687 if (wrqu->data.length > sizeof(this->nick))
1688 return -E2BIG;
1689 strlcpy(this->nick, extra, wrqu->data.length);
1690 return 0;
1691}
1692
1693static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1694 union iwreq_data *wrqu, char *extra)
1695{
6dbc9c89 1696 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1697
1698 strlcpy(extra, this->nick, 32);
1699 wrqu->data.length = strlen(extra);
1700 return 0;
1701}
1702
1703static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1704 union iwreq_data *wrqu, char *extra)
1705{
1706 /*
1707 * FIXME: have to see from where to get this info, perhaps this card
1708 * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1709 * common with the Planet Access Points. -acme
1710 */
1711 wrqu->bitrate.value = 2000000;
1712 wrqu->bitrate.fixed = 1;
1713 return 0;
1714}
1715
1716static int wl3501_get_rts_threshold(struct net_device *dev,
1717 struct iw_request_info *info,
1718 union iwreq_data *wrqu, char *extra)
1719{
1720 u16 threshold; /* size checked: it is u16 */
6dbc9c89 1721 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1722 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1723 &threshold, sizeof(threshold));
1724 if (!rc) {
1725 wrqu->rts.value = threshold;
1726 wrqu->rts.disabled = threshold >= 2347;
1727 wrqu->rts.fixed = 1;
1728 }
1729 return rc;
1730}
1731
1732static int wl3501_get_frag_threshold(struct net_device *dev,
1733 struct iw_request_info *info,
1734 union iwreq_data *wrqu, char *extra)
1735{
1736 u16 threshold; /* size checked: it is u16 */
6dbc9c89 1737 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1738 int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1739 &threshold, sizeof(threshold));
1740 if (!rc) {
1741 wrqu->frag.value = threshold;
1742 wrqu->frag.disabled = threshold >= 2346;
1743 wrqu->frag.fixed = 1;
1744 }
1745 return rc;
1746}
1747
1748static int wl3501_get_txpow(struct net_device *dev,
1749 struct iw_request_info *info,
1750 union iwreq_data *wrqu, char *extra)
1751{
1752 u16 txpow;
6dbc9c89 1753 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1754 int rc = wl3501_get_mib_value(this,
1755 WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1756 &txpow, sizeof(txpow));
1757 if (!rc) {
1758 wrqu->txpower.value = txpow;
1759 wrqu->txpower.disabled = 0;
1760 /*
1761 * From the MIB values I think this can be configurable,
1762 * as it lists several tx power levels -acme
1763 */
1764 wrqu->txpower.fixed = 0;
1765 wrqu->txpower.flags = IW_TXPOW_MWATT;
1766 }
1767 return rc;
1768}
1769
1770static int wl3501_get_retry(struct net_device *dev,
1771 struct iw_request_info *info,
1772 union iwreq_data *wrqu, char *extra)
1773{
1774 u8 retry; /* size checked: it is u8 */
6dbc9c89 1775 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1776 int rc = wl3501_get_mib_value(this,
1777 WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1778 &retry, sizeof(retry));
1779 if (rc)
1780 goto out;
de9621bc
JT		 1781 if (wrqu->retry.flags & IW_RETRY_LONG) {
1782 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1da177e4
LT		 1783 goto set_value;
1784 }
1785 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1786 &retry, sizeof(retry));
1787 if (rc)
1788 goto out;
de9621bc 1789 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1da177e4
LT		 1790set_value:
1791 wrqu->retry.value = retry;
1792 wrqu->retry.disabled = 0;
1793out:
1794 return rc;
1795}
1796
1797static int wl3501_get_encode(struct net_device *dev,
1798 struct iw_request_info *info,
1799 union iwreq_data *wrqu, char *extra)
1800{
1801 u8 implemented, restricted, keys[100], len_keys, tocopy;
6dbc9c89 1802 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1803 int rc = wl3501_get_mib_value(this,
1804 WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1805 &implemented, sizeof(implemented));
1806 if (rc)
1807 goto out;
1808 if (!implemented) {
1809 wrqu->encoding.flags = IW_ENCODE_DISABLED;
1810 goto out;
1811 }
1812 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1813 &restricted, sizeof(restricted));
1814 if (rc)
1815 goto out;
1816 wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1817 IW_ENCODE_OPEN;
1818 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1819 &len_keys, sizeof(len_keys));
1820 if (rc)
1821 goto out;
1822 rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1823 keys, len_keys);
1824 if (rc)
1825 goto out;
1826 tocopy = min_t(u8, len_keys, wrqu->encoding.length);
1827 tocopy = min_t(u8, tocopy, 100);
1828 wrqu->encoding.length = tocopy;
1da177e4
LT		 1829 memcpy(extra, keys, tocopy);
1830out:
1831 return rc;
1832}
1833
1834static int wl3501_get_power(struct net_device *dev,
1835 struct iw_request_info *info,
1836 union iwreq_data *wrqu, char *extra)
1837{
1838 u8 pwr_state;
6dbc9c89 1839 struct wl3501_card *this = netdev_priv(dev);
1da177e4
LT		 1840 int rc = wl3501_get_mib_value(this,
1841 WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1842 &pwr_state, sizeof(pwr_state));
1843 if (rc)
1844 goto out;
1845 wrqu->power.disabled = !pwr_state;
1846 wrqu->power.flags = IW_POWER_ON;
1847out:
1848 return rc;
1849}
1850
1851static const iw_handler wl3501_handler[] = {
1852 [SIOCGIWNAME - SIOCIWFIRST] = wl3501_get_name,
1853 [SIOCSIWFREQ - SIOCIWFIRST] = wl3501_set_freq,
1854 [SIOCGIWFREQ - SIOCIWFIRST] = wl3501_get_freq,
1855 [SIOCSIWMODE - SIOCIWFIRST] = wl3501_set_mode,
1856 [SIOCGIWMODE - SIOCIWFIRST] = wl3501_get_mode,
1857 [SIOCGIWSENS - SIOCIWFIRST] = wl3501_get_sens,
1858 [SIOCGIWRANGE - SIOCIWFIRST] = wl3501_get_range,
1859 [SIOCSIWSPY - SIOCIWFIRST] = iw_handler_set_spy,
1860 [SIOCGIWSPY - SIOCIWFIRST] = iw_handler_get_spy,
1861 [SIOCSIWTHRSPY - SIOCIWFIRST] = iw_handler_set_thrspy,
1862 [SIOCGIWTHRSPY - SIOCIWFIRST] = iw_handler_get_thrspy,
1863 [SIOCSIWAP - SIOCIWFIRST] = wl3501_set_wap,
1864 [SIOCGIWAP - SIOCIWFIRST] = wl3501_get_wap,
1865 [SIOCSIWSCAN - SIOCIWFIRST] = wl3501_set_scan,
1866 [SIOCGIWSCAN - SIOCIWFIRST] = wl3501_get_scan,
1867 [SIOCSIWESSID - SIOCIWFIRST] = wl3501_set_essid,
1868 [SIOCGIWESSID - SIOCIWFIRST] = wl3501_get_essid,
1869 [SIOCSIWNICKN - SIOCIWFIRST] = wl3501_set_nick,
1870 [SIOCGIWNICKN - SIOCIWFIRST] = wl3501_get_nick,
1871 [SIOCGIWRATE - SIOCIWFIRST] = wl3501_get_rate,
1872 [SIOCGIWRTS - SIOCIWFIRST] = wl3501_get_rts_threshold,
1873 [SIOCGIWFRAG - SIOCIWFIRST] = wl3501_get_frag_threshold,
1874 [SIOCGIWTXPOW - SIOCIWFIRST] = wl3501_get_txpow,
1875 [SIOCGIWRETRY - SIOCIWFIRST] = wl3501_get_retry,
1876 [SIOCGIWENCODE - SIOCIWFIRST] = wl3501_get_encode,
1877 [SIOCGIWPOWER - SIOCIWFIRST] = wl3501_get_power,
1878};
1879
1880static const struct iw_handler_def wl3501_handler_def = {
ff8ac609 1881 .num_standard = ARRAY_SIZE(wl3501_handler),
1da177e4 1882 .standard = (iw_handler *)wl3501_handler,
00b309f5 1883 .get_wireless_stats = wl3501_get_wireless_stats,
1da177e4
LT		 1884};
1885
1886/**
1887 * wl3501_attach - creates an "instance" of the driver
1888 *
1889 * Creates an "instance" of the driver, allocating local data structures for
1890 * one device. The device is registered with Card Services.
1891 *
1892 * The dev_link structure is initialized, but we don't actually configure the
1893 * card at this point -- we wait until we receive a card insertion event.
1894 */
15b99ac1 1895static int wl3501_probe(struct pcmcia_device *p_dev)
1da177e4 1896{
1da177e4 1897 struct net_device *dev;
00b309f5 1898 struct wl3501_card *this;
1da177e4
LT		 1899
1900 /* The io structure describes IO port mapping */
fba395ee
DB		 1901 p_dev->io.NumPorts1 = 16;
1902 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
1903 p_dev->io.IOAddrLines = 5;
1da177e4
LT		 1904
1905 /* Interrupt setup */
47cbb110 1906 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
fba395ee
DB		 1907 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
1908 p_dev->irq.Handler = wl3501_interrupt;
1da177e4
LT		 1909
1910 /* General socket configuration */
fba395ee
DB		 1911 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
1912 p_dev->conf.IntType = INT_MEMORY_AND_IO;
1913 p_dev->conf.ConfigIndex = 1;
1da177e4
LT		 1914
1915 dev = alloc_etherdev(sizeof(struct wl3501_card));
1916 if (!dev)
1917 goto out_link;
4255d411
SH		 1918
1919
1da177e4
LT		 1920 dev->open = wl3501_open;
1921 dev->stop = wl3501_close;
1922 dev->hard_start_xmit = wl3501_hard_start_xmit;
1923 dev->tx_timeout = wl3501_tx_timeout;
1924 dev->watchdog_timeo = 5 * HZ;
4255d411 1925
6dbc9c89 1926 this = netdev_priv(dev);
00b309f5 1927 this->wireless_data.spy_data = &this->spy_data;
fd238232 1928 this->p_dev = p_dev;
00b309f5 1929 dev->wireless_data = &this->wireless_data;
1da177e4
LT		 1930 dev->wireless_handlers = (struct iw_handler_def *)&wl3501_handler_def;
1931 SET_ETHTOOL_OPS(dev, &ops);
1932 netif_stop_queue(dev);
fba395ee 1933 p_dev->priv = p_dev->irq.Instance = dev;
1da177e4 1934
15b99ac1 1935 return wl3501_config(p_dev);
1da177e4 1936out_link:
f8cfa618 1937 return -ENOMEM;
1da177e4
LT		 1938}
1939
1940#define CS_CHECK(fn, ret) \
1941do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
1942
1943/**
1944 * wl3501_config - configure the PCMCIA socket and make eth device available
1945 * @link - FILL_IN
1946 *
1947 * wl3501_config() is scheduled to run after a CARD_INSERTION event is
1948 * received, to configure the PCMCIA socket, and to make the ethernet device
1949 * available to the system.
1950 */
15b99ac1 1951static int wl3501_config(struct pcmcia_device *link)
1da177e4 1952{
1da177e4
LT		 1953 struct net_device *dev = link->priv;
1954 int i = 0, j, last_fn, last_ret;
1da177e4
LT		 1955 struct wl3501_card *this;
1956
1da177e4
LT		 1957 /* Try allocating IO ports. This tries a few fixed addresses. If you
1958 * want, you can also read the card's config table to pick addresses --
1959 * see the serial driver for an example. */
1960
1961 for (j = 0x280; j < 0x400; j += 0x20) {
1962 /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1963 * 0x200-0x2ff, and so on, because this seems safer */
1964 link->io.BasePort1 = j;
1965 link->io.BasePort2 = link->io.BasePort1 + 0x10;
fba395ee 1966 i = pcmcia_request_io(link, &link->io);
4c89e88b 1967 if (i == 0)
1da177e4
LT		 1968 break;
1969 }
4c89e88b 1970 if (i != 0) {
fba395ee 1971 cs_error(link, RequestIO, i);
1da177e4
LT		 1972 goto failed;
1973 }
1974
1975 /* Now allocate an interrupt line. Note that this does not actually
1976 * assign a handler to the interrupt. */
1977
fba395ee 1978 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
1da177e4
LT		 1979
1980 /* This actually configures the PCMCIA socket -- setting up the I/O
1981 * windows and the interrupt mapping. */
1982
fba395ee 1983 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
1da177e4
LT		 1984
1985 dev->irq = link->irq.AssignedIRQ;
1986 dev->base_addr = link->io.BasePort1;
fba395ee 1987 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1da177e4
LT		 1988 if (register_netdev(dev)) {
1989 printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1990 goto failed;
1991 }
1992
6dbc9c89 1993 this = netdev_priv(dev);
1da177e4
LT		 1994 /*
1995 * At this point, the dev_node_t structure(s) should be initialized and
fd238232 1996 * arranged in a linked list at link->dev_node.
1da177e4 1997 */
fd238232 1998 link->dev_node = &this->node;
1da177e4
LT		 1999
2000 this->base_addr = dev->base_addr;
2001
2002 if (!wl3501_get_flash_mac_addr(this)) {
2003 printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n",
2004 dev->name);
2005 goto failed;
2006 }
2007 strcpy(this->node.dev_name, dev->name);
2008
0795af57 2009 for (i = 0; i < 6; i++)
1da177e4 2010 dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
0795af57
JP		 2011
2012 /* print probe information */
2013 printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
e174961c 2014 "MAC addr in flash ROM:%pM\n",
0795af57 2015 dev->name, this->base_addr, (int)dev->irq,
e174961c 2016 dev->dev_addr);
1da177e4
LT		 2017 /*
2018 * Initialize card parameters - added by jss
2019 */
2020 this->net_type = IW_MODE_INFRA;
2021 this->bss_cnt = 0;
2022 this->join_sta_bss = 0;
2023 this->adhoc_times = 0;
2024 iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
2025 "ANY", 3);
2026 this->card_name[0] = '\0';
2027 this->firmware_date[0] = '\0';
2028 this->rssi = 255;
2029 this->chan = iw_default_channel(this->reg_domain);
2030 strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
2031 spin_lock_init(&this->lock);
2032 init_waitqueue_head(&this->wait);
2033 netif_start_queue(dev);
15b99ac1
DB		 2034 return 0;
2035
1da177e4 2036cs_failed:
fba395ee 2037 cs_error(link, last_fn, last_ret);
1da177e4
LT		 2038failed:
2039 wl3501_release(link);
15b99ac1 2040 return -ENODEV;
1da177e4
LT		 2041}
2042
2043/**
2044 * wl3501_release - unregister the net, release PCMCIA configuration
2045 * @arg - link
2046 *
2047 * After a card is removed, wl3501_release() will unregister the net device,
2048 * and release the PCMCIA configuration. If the device is still open, this
2049 * will be postponed until it is closed.
2050 */
fba395ee 2051static void wl3501_release(struct pcmcia_device *link)
1da177e4
LT		 2052{
2053 struct net_device *dev = link->priv;
2054
2055 /* Unlink the device chain */
fd238232 2056 if (link->dev_node)
1da177e4 2057 unregister_netdev(dev);
1da177e4 2058
fba395ee 2059 pcmcia_disable_device(link);
1da177e4
LT		 2060}
2061
fba395ee 2062static int wl3501_suspend(struct pcmcia_device *link)
98e4c28b 2063{
98e4c28b
DB		 2064 struct net_device *dev = link->priv;
2065
6dbc9c89 2066 wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
e2d40963 2067 if (link->open)
8661bb5b 2068 netif_device_detach(dev);
98e4c28b
DB		 2069
2070 return 0;
2071}
2072
fba395ee 2073static int wl3501_resume(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_RESUME);
e2d40963 2078 if (link->open) {
8661bb5b
DB		 2079 wl3501_reset(dev);
2080 netif_device_attach(dev);
98e4c28b
DB		 2081 }
2082
2083 return 0;
2084}
2085
2086
77b73f9b
DB		 2087static struct pcmcia_device_id wl3501_ids[] = {
2088 PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2089 PCMCIA_DEVICE_NULL
2090};
2091MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2092
1da177e4 2093static struct pcmcia_driver wl3501_driver = {
1e212f36
DB		 2094 .owner = THIS_MODULE,
2095 .drv = {
2096 .name = "wl3501_cs",
1da177e4 2097 },
15b99ac1 2098 .probe = wl3501_probe,
cc3b4866 2099 .remove = wl3501_detach,
77b73f9b 2100 .id_table = wl3501_ids,
98e4c28b
DB		 2101 .suspend = wl3501_suspend,
2102 .resume = wl3501_resume,
1da177e4
LT		 2103};
2104
2105static int __init wl3501_init_module(void)
2106{
2107 return pcmcia_register_driver(&wl3501_driver);
2108}
2109
2110static void __exit wl3501_exit_module(void)
2111{
1da177e4 2112 pcmcia_unregister_driver(&wl3501_driver);
1da177e4
LT		 2113}
2114
2115module_init(wl3501_init_module);
2116module_exit(wl3501_exit_module);
2117
2118MODULE_AUTHOR("Fox Chen <mhchen@golf.ccl.itri.org.tw>, "
2119 "Arnaldo Carvalho de Melo <acme@conectiva.com.br>,"
2120 "Gustavo Niemeyer <niemeyer@conectiva.com>");
2121MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2122MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)