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iwlwifi: A-MPDU Tx activation by load measures
[linux-2.6/btrfs-unstable.git] / drivers / net / wireless / libertas / join.c
blob56e64a697c37fd1d39257d216f6aec8d50106956
1 /**
2 * Functions implementing wlan infrastructure and adhoc join routines,
3 * IOCTL handlers as well as command preperation and response routines
4 * for sending adhoc start, adhoc join, and association commands
5 * to the firmware.
6 */
7 #include <linux/netdevice.h>
8 #include <linux/if_arp.h>
9 #include <linux/wireless.h>
10 #include <linux/etherdevice.h>
11
12 #include <net/iw_handler.h>
13
14 #include "host.h"
15 #include "decl.h"
16 #include "join.h"
17 #include "dev.h"
18 #include "assoc.h"
19
20 /* The firmware needs certain bits masked out of the beacon-derviced capability
21 * field when associating/joining to BSSs.
22 */
23 #define CAPINFO_MASK (~(0xda00))
24
25 /**
26 * @brief This function finds common rates between rate1 and card rates.
27 *
28 * It will fill common rates in rate1 as output if found.
29 *
30 * NOTE: Setting the MSB of the basic rates need to be taken
31 * care, either before or after calling this function
32 *
33 * @param priv A pointer to struct lbs_private structure
34 * @param rate1 the buffer which keeps input and output
35 * @param rate1_size the size of rate1 buffer; new size of buffer on return
36 *
37 * @return 0 or -1
38 */
39 static int get_common_rates(struct lbs_private *priv,
40 u8 *rates,
41 u16 *rates_size)
42 {
43 u8 *card_rates = lbs_bg_rates;
44 size_t num_card_rates = sizeof(lbs_bg_rates);
45 int ret = 0, i, j;
46 u8 tmp[30];
47 size_t tmp_size = 0;
48
49 /* For each rate in card_rates that exists in rate1, copy to tmp */
50 for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
51 for (j = 0; rates[j] && (j < *rates_size); j++) {
52 if (rates[j] == card_rates[i])
53 tmp[tmp_size++] = card_rates[i];
54 }
55 }
56
57 lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
58 lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates);
59 lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
60 lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
61
62 if (!priv->auto_rate) {
63 for (i = 0; i < tmp_size; i++) {
64 if (tmp[i] == priv->cur_rate)
65 goto done;
66 }
67 lbs_pr_alert("Previously set fixed data rate %#x isn't "
68 "compatible with the network.\n", priv->cur_rate);
69 ret = -1;
70 goto done;
71 }
72 ret = 0;
73
74 done:
75 memset(rates, 0, *rates_size);
76 *rates_size = min_t(int, tmp_size, *rates_size);
77 memcpy(rates, tmp, *rates_size);
78 return ret;
79 }
80
81
82 /**
83 * @brief Sets the MSB on basic rates as the firmware requires
84 *
85 * Scan through an array and set the MSB for basic data rates.
86 *
87 * @param rates buffer of data rates
88 * @param len size of buffer
89 */
90 static void lbs_set_basic_rate_flags(u8 *rates, size_t len)
91 {
92 int i;
93
94 for (i = 0; i < len; i++) {
95 if (rates[i] == 0x02 || rates[i] == 0x04 ||
96 rates[i] == 0x0b || rates[i] == 0x16)
97 rates[i] |= 0x80;
98 }
99 }
100
101 /**
102 * @brief Associate to a specific BSS discovered in a scan
103 *
104 * @param priv A pointer to struct lbs_private structure
105 * @param pbssdesc Pointer to the BSS descriptor to associate with.
106 *
107 * @return 0-success, otherwise fail
108 */
109 int lbs_associate(struct lbs_private *priv, struct assoc_request *assoc_req)
110 {
111 int ret;
112
113 lbs_deb_enter(LBS_DEB_ASSOC);
114
115 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
116 0, CMD_OPTION_WAITFORRSP,
117 0, assoc_req->bss.bssid);
118
119 if (ret)
120 goto done;
121
122 /* set preamble to firmware */
123 if ( (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
124 && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
125 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
126 else
127 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
128
129 lbs_set_radio_control(priv);
130
131 ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
132 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
133
134 done:
135 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
136 return ret;
137 }
138
139 /**
140 * @brief Start an Adhoc Network
141 *
142 * @param priv A pointer to struct lbs_private structure
143 * @param adhocssid The ssid of the Adhoc Network
144 * @return 0--success, -1--fail
145 */
146 int lbs_start_adhoc_network(struct lbs_private *priv,
147 struct assoc_request *assoc_req)
148 {
149 int ret = 0;
150
151 priv->adhoccreate = 1;
152
153 if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
154 lbs_deb_join("AdhocStart: Short preamble\n");
155 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
156 } else {
157 lbs_deb_join("AdhocStart: Long preamble\n");
158 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
159 }
160
161 lbs_set_radio_control(priv);
162
163 lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
164 lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
165
166 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
167 0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
168
169 return ret;
170 }
171
172 /**
173 * @brief Join an adhoc network found in a previous scan
174 *
175 * @param priv A pointer to struct lbs_private structure
176 * @param pbssdesc Pointer to a BSS descriptor found in a previous scan
177 * to attempt to join
178 *
179 * @return 0--success, -1--fail
180 */
181 int lbs_join_adhoc_network(struct lbs_private *priv,
182 struct assoc_request *assoc_req)
183 {
184 struct bss_descriptor * bss = &assoc_req->bss;
185 int ret = 0;
186
187 lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
188 __func__,
189 escape_essid(priv->curbssparams.ssid,
190 priv->curbssparams.ssid_len),
191 priv->curbssparams.ssid_len);
192 lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
193 __func__, escape_essid(bss->ssid, bss->ssid_len),
194 bss->ssid_len);
195
196 /* check if the requested SSID is already joined */
197 if ( priv->curbssparams.ssid_len
198 && !lbs_ssid_cmp(priv->curbssparams.ssid,
199 priv->curbssparams.ssid_len,
200 bss->ssid, bss->ssid_len)
201 && (priv->mode == IW_MODE_ADHOC)
202 && (priv->connect_status == LBS_CONNECTED)) {
203 union iwreq_data wrqu;
204
205 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
206 "current, not attempting to re-join");
207
208 /* Send the re-association event though, because the association
209 * request really was successful, even if just a null-op.
210 */
211 memset(&wrqu, 0, sizeof(wrqu));
212 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid,
213 ETH_ALEN);
214 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
215 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
216 goto out;
217 }
218
219 /* Use shortpreamble only when both creator and card supports
220 short preamble */
221 if ( !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
222 || !(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
223 lbs_deb_join("AdhocJoin: Long preamble\n");
224 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
225 } else {
226 lbs_deb_join("AdhocJoin: Short preamble\n");
227 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
228 }
229
230 lbs_set_radio_control(priv);
231
232 lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
233 lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
234
235 priv->adhoccreate = 0;
236
237 ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
238 0, CMD_OPTION_WAITFORRSP,
239 OID_802_11_SSID, assoc_req);
240
241 out:
242 return ret;
243 }
244
245 int lbs_stop_adhoc_network(struct lbs_private *priv)
246 {
247 return lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
248 0, CMD_OPTION_WAITFORRSP, 0, NULL);
249 }
250
251 /**
252 * @brief Send Deauthentication Request
253 *
254 * @param priv A pointer to struct lbs_private structure
255 * @return 0--success, -1--fail
256 */
257 int lbs_send_deauthentication(struct lbs_private *priv)
258 {
259 return lbs_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
260 0, CMD_OPTION_WAITFORRSP, 0, NULL);
261 }
262
263 /**
264 * @brief This function prepares command of authenticate.
265 *
266 * @param priv A pointer to struct lbs_private structure
267 * @param cmd A pointer to cmd_ds_command structure
268 * @param pdata_buf Void cast of pointer to a BSSID to authenticate with
269 *
270 * @return 0 or -1
271 */
272 int lbs_cmd_80211_authenticate(struct lbs_private *priv,
273 struct cmd_ds_command *cmd,
274 void *pdata_buf)
275 {
276 struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
277 int ret = -1;
278 u8 *bssid = pdata_buf;
279 DECLARE_MAC_BUF(mac);
280
281 lbs_deb_enter(LBS_DEB_JOIN);
282
283 cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
284 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
285 + S_DS_GEN);
286
287 /* translate auth mode to 802.11 defined wire value */
288 switch (priv->secinfo.auth_mode) {
289 case IW_AUTH_ALG_OPEN_SYSTEM:
290 pauthenticate->authtype = 0x00;
291 break;
292 case IW_AUTH_ALG_SHARED_KEY:
293 pauthenticate->authtype = 0x01;
294 break;
295 case IW_AUTH_ALG_LEAP:
296 pauthenticate->authtype = 0x80;
297 break;
298 default:
299 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
300 priv->secinfo.auth_mode);
301 goto out;
302 }
303
304 memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
305
306 lbs_deb_join("AUTH_CMD: BSSID %s, auth 0x%x\n",
307 print_mac(mac, bssid), pauthenticate->authtype);
308 ret = 0;
309
310 out:
311 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
312 return ret;
313 }
314
315 int lbs_cmd_80211_deauthenticate(struct lbs_private *priv,
316 struct cmd_ds_command *cmd)
317 {
318 struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
319
320 lbs_deb_enter(LBS_DEB_JOIN);
321
322 cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
323 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
324 S_DS_GEN);
325
326 /* set AP MAC address */
327 memmove(dauth->macaddr, priv->curbssparams.bssid, ETH_ALEN);
328
329 /* Reason code 3 = Station is leaving */
330 #define REASON_CODE_STA_LEAVING 3
331 dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
332
333 lbs_deb_leave(LBS_DEB_JOIN);
334 return 0;
335 }
336
337 int lbs_cmd_80211_associate(struct lbs_private *priv,
338 struct cmd_ds_command *cmd, void *pdata_buf)
339 {
340 struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
341 int ret = 0;
342 struct assoc_request * assoc_req = pdata_buf;
343 struct bss_descriptor * bss = &assoc_req->bss;
344 u8 *pos;
345 u16 tmpcap, tmplen;
346 struct mrvlietypes_ssidparamset *ssid;
347 struct mrvlietypes_phyparamset *phy;
348 struct mrvlietypes_ssparamset *ss;
349 struct mrvlietypes_ratesparamset *rates;
350 struct mrvlietypes_rsnparamset *rsn;
351
352 lbs_deb_enter(LBS_DEB_ASSOC);
353
354 pos = (u8 *) passo;
355
356 if (!priv) {
357 ret = -1;
358 goto done;
359 }
360
361 cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
362
363 memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
364 pos += sizeof(passo->peerstaaddr);
365
366 /* set the listen interval */
367 passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
368
369 pos += sizeof(passo->capability);
370 pos += sizeof(passo->listeninterval);
371 pos += sizeof(passo->bcnperiod);
372 pos += sizeof(passo->dtimperiod);
373
374 ssid = (struct mrvlietypes_ssidparamset *) pos;
375 ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
376 tmplen = bss->ssid_len;
377 ssid->header.len = cpu_to_le16(tmplen);
378 memcpy(ssid->ssid, bss->ssid, tmplen);
379 pos += sizeof(ssid->header) + tmplen;
380
381 phy = (struct mrvlietypes_phyparamset *) pos;
382 phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
383 tmplen = sizeof(phy->fh_ds.dsparamset);
384 phy->header.len = cpu_to_le16(tmplen);
385 memcpy(&phy->fh_ds.dsparamset,
386 &bss->phyparamset.dsparamset.currentchan,
387 tmplen);
388 pos += sizeof(phy->header) + tmplen;
389
390 ss = (struct mrvlietypes_ssparamset *) pos;
391 ss->header.type = cpu_to_le16(TLV_TYPE_CF);
392 tmplen = sizeof(ss->cf_ibss.cfparamset);
393 ss->header.len = cpu_to_le16(tmplen);
394 pos += sizeof(ss->header) + tmplen;
395
396 rates = (struct mrvlietypes_ratesparamset *) pos;
397 rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
398 memcpy(&rates->rates, &bss->rates, MAX_RATES);
399 tmplen = MAX_RATES;
400 if (get_common_rates(priv, rates->rates, &tmplen)) {
401 ret = -1;
402 goto done;
403 }
404 pos += sizeof(rates->header) + tmplen;
405 rates->header.len = cpu_to_le16(tmplen);
406 lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen);
407
408 /* Copy the infra. association rates into Current BSS state structure */
409 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
410 memcpy(&priv->curbssparams.rates, &rates->rates, tmplen);
411
412 /* Set MSB on basic rates as the firmware requires, but _after_
413 * copying to current bss rates.
414 */
415 lbs_set_basic_rate_flags(rates->rates, tmplen);
416
417 if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
418 rsn = (struct mrvlietypes_rsnparamset *) pos;
419 /* WPA_IE or WPA2_IE */
420 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
421 tmplen = (u16) assoc_req->wpa_ie[1];
422 rsn->header.len = cpu_to_le16(tmplen);
423 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
424 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
425 sizeof(rsn->header) + tmplen);
426 pos += sizeof(rsn->header) + tmplen;
427 }
428
429 /* update curbssparams */
430 priv->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
431
432 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
433 ret = -1;
434 goto done;
435 }
436
437 cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
438
439 /* set the capability info */
440 tmpcap = (bss->capability & CAPINFO_MASK);
441 if (bss->mode == IW_MODE_INFRA)
442 tmpcap |= WLAN_CAPABILITY_ESS;
443 passo->capability = cpu_to_le16(tmpcap);
444 lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
445
446 done:
447 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
448 return ret;
449 }
450
451 int lbs_cmd_80211_ad_hoc_start(struct lbs_private *priv,
452 struct cmd_ds_command *cmd, void *pdata_buf)
453 {
454 struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
455 int ret = 0;
456 int cmdappendsize = 0;
457 struct assoc_request * assoc_req = pdata_buf;
458 u16 tmpcap = 0;
459 size_t ratesize = 0;
460
461 lbs_deb_enter(LBS_DEB_JOIN);
462
463 if (!priv) {
464 ret = -1;
465 goto done;
466 }
467
468 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
469
470 /*
471 * Fill in the parameters for 2 data structures:
472 * 1. cmd_ds_802_11_ad_hoc_start command
473 * 2. priv->scantable[i]
474 *
475 * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
476 * probe delay, and cap info.
477 *
478 * Firmware will fill up beacon period, DTIM, Basic rates
479 * and operational rates.
480 */
481
482 memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
483 memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
484
485 lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
486 escape_essid(assoc_req->ssid, assoc_req->ssid_len),
487 assoc_req->ssid_len);
488
489 /* set the BSS type */
490 adhs->bsstype = CMD_BSS_TYPE_IBSS;
491 priv->mode = IW_MODE_ADHOC;
492 if (priv->beacon_period == 0)
493 priv->beacon_period = MRVDRV_BEACON_INTERVAL;
494 adhs->beaconperiod = cpu_to_le16(priv->beacon_period);
495
496 /* set Physical param set */
497 #define DS_PARA_IE_ID 3
498 #define DS_PARA_IE_LEN 1
499
500 adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
501 adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
502
503 WARN_ON(!assoc_req->channel);
504
505 lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
506 assoc_req->channel);
507
508 adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
509
510 /* set IBSS param set */
511 #define IBSS_PARA_IE_ID 6
512 #define IBSS_PARA_IE_LEN 2
513
514 adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
515 adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
516 adhs->ssparamset.ibssparamset.atimwindow = 0;
517
518 /* set capability info */
519 tmpcap = WLAN_CAPABILITY_IBSS;
520 if (assoc_req->secinfo.wep_enabled) {
521 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
522 tmpcap |= WLAN_CAPABILITY_PRIVACY;
523 } else {
524 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
525 }
526 adhs->capability = cpu_to_le16(tmpcap);
527
528 /* probedelay */
529 adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
530
531 memset(adhs->rates, 0, sizeof(adhs->rates));
532 ratesize = min(sizeof(adhs->rates), sizeof(lbs_bg_rates));
533 memcpy(adhs->rates, lbs_bg_rates, ratesize);
534
535 /* Copy the ad-hoc creating rates into Current BSS state structure */
536 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
537 memcpy(&priv->curbssparams.rates, &adhs->rates, ratesize);
538
539 /* Set MSB on basic rates as the firmware requires, but _after_
540 * copying to current bss rates.
541 */
542 lbs_set_basic_rate_flags(adhs->rates, ratesize);
543
544 lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
545 adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
546
547 lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
548
549 if (lbs_create_dnld_countryinfo_11d(priv)) {
550 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
551 ret = -1;
552 goto done;
553 }
554
555 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
556 S_DS_GEN + cmdappendsize);
557
558 ret = 0;
559 done:
560 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
561 return ret;
562 }
563
564 int lbs_cmd_80211_ad_hoc_stop(struct lbs_private *priv,
565 struct cmd_ds_command *cmd)
566 {
567 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
568 cmd->size = cpu_to_le16(S_DS_GEN);
569
570 return 0;
571 }
572
573 int lbs_cmd_80211_ad_hoc_join(struct lbs_private *priv,
574 struct cmd_ds_command *cmd, void *pdata_buf)
575 {
576 struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
577 struct assoc_request * assoc_req = pdata_buf;
578 struct bss_descriptor *bss = &assoc_req->bss;
579 int cmdappendsize = 0;
580 int ret = 0;
581 u16 ratesize = 0;
582 DECLARE_MAC_BUF(mac);
583
584 lbs_deb_enter(LBS_DEB_JOIN);
585
586 cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
587
588 join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
589 join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
590
591 memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
592 memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
593
594 memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
595 sizeof(union ieeetypes_phyparamset));
596
597 memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
598 sizeof(union IEEEtypes_ssparamset));
599
600 join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
601 lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
602 bss->capability, CAPINFO_MASK);
603
604 /* information on BSSID descriptor passed to FW */
605 lbs_deb_join(
606 "ADHOC_J_CMD: BSSID = %s, SSID = '%s'\n",
607 print_mac(mac, join_cmd->bss.bssid),
608 join_cmd->bss.ssid);
609
610 /* failtimeout */
611 join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
612
613 /* probedelay */
614 join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
615
616 priv->curbssparams.channel = bss->channel;
617
618 /* Copy Data rates from the rates recorded in scan response */
619 memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
620 ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
621 memcpy(join_cmd->bss.rates, bss->rates, ratesize);
622 if (get_common_rates(priv, join_cmd->bss.rates, &ratesize)) {
623 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
624 ret = -1;
625 goto done;
626 }
627
628 /* Copy the ad-hoc creating rates into Current BSS state structure */
629 memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
630 memcpy(&priv->curbssparams.rates, join_cmd->bss.rates, ratesize);
631
632 /* Set MSB on basic rates as the firmware requires, but _after_
633 * copying to current bss rates.
634 */
635 lbs_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
636
637 join_cmd->bss.ssparamset.ibssparamset.atimwindow =
638 cpu_to_le16(bss->atimwindow);
639
640 if (assoc_req->secinfo.wep_enabled) {
641 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
642 tmp |= WLAN_CAPABILITY_PRIVACY;
643 join_cmd->bss.capability = cpu_to_le16(tmp);
644 }
645
646 if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
647 /* wake up first */
648 __le32 Localpsmode;
649
650 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
651 ret = lbs_prepare_and_send_command(priv,
652 CMD_802_11_PS_MODE,
653 CMD_ACT_SET,
654 0, 0, &Localpsmode);
655
656 if (ret) {
657 ret = -1;
658 goto done;
659 }
660 }
661
662 if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
663 ret = -1;
664 goto done;
665 }
666
667 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
668 S_DS_GEN + cmdappendsize);
669
670 done:
671 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
672 return ret;
673 }
674
675 int lbs_ret_80211_associate(struct lbs_private *priv,
676 struct cmd_ds_command *resp)
677 {
678 int ret = 0;
679 union iwreq_data wrqu;
680 struct ieeetypes_assocrsp *passocrsp;
681 struct bss_descriptor * bss;
682 u16 status_code;
683
684 lbs_deb_enter(LBS_DEB_ASSOC);
685
686 if (!priv->in_progress_assoc_req) {
687 lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n");
688 ret = -1;
689 goto done;
690 }
691 bss = &priv->in_progress_assoc_req->bss;
692
693 passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
694
695 /*
696 * Older FW versions map the IEEE 802.11 Status Code in the association
697 * response to the following values returned in passocrsp->statuscode:
698 *
699 * IEEE Status Code Marvell Status Code
700 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
701 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
702 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
703 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
704 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
705 * others -> 0x0003 ASSOC_RESULT_REFUSED
706 *
707 * Other response codes:
708 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
709 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
710 * association response from the AP)
711 */
712
713 status_code = le16_to_cpu(passocrsp->statuscode);
714 switch (status_code) {
715 case 0x00:
716 break;
717 case 0x01:
718 lbs_deb_assoc("ASSOC_RESP: invalid parameters\n");
719 break;
720 case 0x02:
721 lbs_deb_assoc("ASSOC_RESP: internal timer "
722 "expired while waiting for the AP\n");
723 break;
724 case 0x03:
725 lbs_deb_assoc("ASSOC_RESP: association "
726 "refused by AP\n");
727 break;
728 case 0x04:
729 lbs_deb_assoc("ASSOC_RESP: authentication "
730 "refused by AP\n");
731 break;
732 default:
733 lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x "
734 " unknown\n", status_code);
735 break;
736 }
737
738 if (status_code) {
739 lbs_mac_event_disconnected(priv);
740 ret = -1;
741 goto done;
742 }
743
744 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params,
745 le16_to_cpu(resp->size) - S_DS_GEN);
746
747 /* Send a Media Connected event, according to the Spec */
748 priv->connect_status = LBS_CONNECTED;
749
750 /* Update current SSID and BSSID */
751 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
752 priv->curbssparams.ssid_len = bss->ssid_len;
753 memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
754
755 priv->SNR[TYPE_RXPD][TYPE_AVG] = 0;
756 priv->NF[TYPE_RXPD][TYPE_AVG] = 0;
757
758 memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
759 memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
760 priv->nextSNRNF = 0;
761 priv->numSNRNF = 0;
762
763 netif_carrier_on(priv->dev);
764 if (!priv->tx_pending_len)
765 netif_wake_queue(priv->dev);
766
767 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
768 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
769 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
770
771 done:
772 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
773 return ret;
774 }
775
776 int lbs_ret_80211_disassociate(struct lbs_private *priv,
777 struct cmd_ds_command *resp)
778 {
779 lbs_deb_enter(LBS_DEB_JOIN);
780
781 lbs_mac_event_disconnected(priv);
782
783 lbs_deb_leave(LBS_DEB_JOIN);
784 return 0;
785 }
786
787 int lbs_ret_80211_ad_hoc_start(struct lbs_private *priv,
788 struct cmd_ds_command *resp)
789 {
790 int ret = 0;
791 u16 command = le16_to_cpu(resp->command);
792 u16 result = le16_to_cpu(resp->result);
793 struct cmd_ds_802_11_ad_hoc_result *padhocresult;
794 union iwreq_data wrqu;
795 struct bss_descriptor *bss;
796 DECLARE_MAC_BUF(mac);
797
798 lbs_deb_enter(LBS_DEB_JOIN);
799
800 padhocresult = &resp->params.result;
801
802 lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
803 lbs_deb_join("ADHOC_RESP: command = %x\n", command);
804 lbs_deb_join("ADHOC_RESP: result = %x\n", result);
805
806 if (!priv->in_progress_assoc_req) {
807 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
808 ret = -1;
809 goto done;
810 }
811 bss = &priv->in_progress_assoc_req->bss;
812
813 /*
814 * Join result code 0 --> SUCCESS
815 */
816 if (result) {
817 lbs_deb_join("ADHOC_RESP: failed\n");
818 if (priv->connect_status == LBS_CONNECTED) {
819 lbs_mac_event_disconnected(priv);
820 }
821 ret = -1;
822 goto done;
823 }
824
825 /*
826 * Now the join cmd should be successful
827 * If BSSID has changed use SSID to compare instead of BSSID
828 */
829 lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
830 escape_essid(bss->ssid, bss->ssid_len));
831
832 /* Send a Media Connected event, according to the Spec */
833 priv->connect_status = LBS_CONNECTED;
834
835 if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
836 /* Update the created network descriptor with the new BSSID */
837 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
838 }
839
840 /* Set the BSSID from the joined/started descriptor */
841 memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
842
843 /* Set the new SSID to current SSID */
844 memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
845 priv->curbssparams.ssid_len = bss->ssid_len;
846
847 netif_carrier_on(priv->dev);
848 if (!priv->tx_pending_len)
849 netif_wake_queue(priv->dev);
850
851 memset(&wrqu, 0, sizeof(wrqu));
852 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
853 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
854 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
855
856 lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
857 lbs_deb_join("ADHOC_RESP: channel = %d\n", priv->curbssparams.channel);
858 lbs_deb_join("ADHOC_RESP: BSSID = %s\n",
859 print_mac(mac, padhocresult->bssid));
860
861 done:
862 lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
863 return ret;
864 }
865
866 int lbs_ret_80211_ad_hoc_stop(struct lbs_private *priv,
867 struct cmd_ds_command *resp)
868 {
869 lbs_deb_enter(LBS_DEB_JOIN);
870
871 lbs_mac_event_disconnected(priv);
872
873 lbs_deb_leave(LBS_DEB_JOIN);
874 return 0;
875 }
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