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libertas: kill pdata_buf member of struct cmd_ctrl_node
[linux-2.6/x86.git] / drivers / net / wireless / libertas / cmdresp.c
blob4c22e7849515db9634f3f113b5ab010ec0eaed6c
1 /**
2 * This file contains the handling of command
3 * responses as well as events generated by firmware.
4 */
5 #include <linux/delay.h>
6 #include <linux/if_arp.h>
7 #include <linux/netdevice.h>
8
9 #include <net/iw_handler.h>
10
11 #include "host.h"
12 #include "decl.h"
13 #include "defs.h"
14 #include "dev.h"
15 #include "join.h"
16 #include "wext.h"
17
18 /**
19 * @brief This function handles disconnect event. it
20 * reports disconnect to upper layer, clean tx/rx packets,
21 * reset link state etc.
22 *
23 * @param priv A pointer to struct lbs_private structure
24 * @return n/a
25 */
26 void lbs_mac_event_disconnected(struct lbs_private *priv)
27 {
28 union iwreq_data wrqu;
29
30 if (priv->connect_status != LBS_CONNECTED)
31 return;
32
33 lbs_deb_enter(LBS_DEB_ASSOC);
34
35 memset(wrqu.ap_addr.sa_data, 0x00, ETH_ALEN);
36 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
37
38 /*
39 * Cisco AP sends EAP failure and de-auth in less than 0.5 ms.
40 * It causes problem in the Supplicant
41 */
42
43 msleep_interruptible(1000);
44 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
45
46 /* report disconnect to upper layer */
47 netif_stop_queue(priv->dev);
48 netif_carrier_off(priv->dev);
49
50 /* Free Tx and Rx packets */
51 kfree_skb(priv->currenttxskb);
52 priv->currenttxskb = NULL;
53 priv->tx_pending_len = 0;
54
55 /* reset SNR/NF/RSSI values */
56 memset(priv->SNR, 0x00, sizeof(priv->SNR));
57 memset(priv->NF, 0x00, sizeof(priv->NF));
58 memset(priv->RSSI, 0x00, sizeof(priv->RSSI));
59 memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
60 memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
61 priv->nextSNRNF = 0;
62 priv->numSNRNF = 0;
63 priv->connect_status = LBS_DISCONNECTED;
64
65 /* Clear out associated SSID and BSSID since connection is
66 * no longer valid.
67 */
68 memset(&priv->curbssparams.bssid, 0, ETH_ALEN);
69 memset(&priv->curbssparams.ssid, 0, IW_ESSID_MAX_SIZE);
70 priv->curbssparams.ssid_len = 0;
71
72 if (priv->psstate != PS_STATE_FULL_POWER) {
73 /* make firmware to exit PS mode */
74 lbs_deb_cmd("disconnected, so exit PS mode\n");
75 lbs_ps_wakeup(priv, 0);
76 }
77 lbs_deb_leave(LBS_DEB_CMD);
78 }
79
80 /**
81 * @brief This function handles MIC failure event.
82 *
83 * @param priv A pointer to struct lbs_private structure
84 * @para event the event id
85 * @return n/a
86 */
87 static void handle_mic_failureevent(struct lbs_private *priv, u32 event)
88 {
89 char buf[50];
90
91 lbs_deb_enter(LBS_DEB_CMD);
92 memset(buf, 0, sizeof(buf));
93
94 sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
95
96 if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) {
97 strcat(buf, "unicast ");
98 } else {
99 strcat(buf, "multicast ");
100 }
101
102 lbs_send_iwevcustom_event(priv, buf);
103 lbs_deb_leave(LBS_DEB_CMD);
104 }
105
106 static int lbs_ret_reg_access(struct lbs_private *priv,
107 u16 type, struct cmd_ds_command *resp)
108 {
109 int ret = 0;
110
111 lbs_deb_enter(LBS_DEB_CMD);
112
113 switch (type) {
114 case CMD_RET(CMD_MAC_REG_ACCESS):
115 {
116 struct cmd_ds_mac_reg_access *reg = &resp->params.macreg;
117
118 priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
119 priv->offsetvalue.value = le32_to_cpu(reg->value);
120 break;
121 }
122
123 case CMD_RET(CMD_BBP_REG_ACCESS):
124 {
125 struct cmd_ds_bbp_reg_access *reg = &resp->params.bbpreg;
126
127 priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
128 priv->offsetvalue.value = reg->value;
129 break;
130 }
131
132 case CMD_RET(CMD_RF_REG_ACCESS):
133 {
134 struct cmd_ds_rf_reg_access *reg = &resp->params.rfreg;
135
136 priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
137 priv->offsetvalue.value = reg->value;
138 break;
139 }
140
141 default:
142 ret = -1;
143 }
144
145 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
146 return ret;
147 }
148
149 static int lbs_ret_802_11_sleep_params(struct lbs_private *priv,
150 struct cmd_ds_command *resp)
151 {
152 struct cmd_ds_802_11_sleep_params *sp = &resp->params.sleep_params;
153
154 lbs_deb_enter(LBS_DEB_CMD);
155
156 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, calcontrol 0x%x "
157 "extsleepclk 0x%x\n", le16_to_cpu(sp->error),
158 le16_to_cpu(sp->offset), le16_to_cpu(sp->stabletime),
159 sp->calcontrol, sp->externalsleepclk);
160
161 priv->sp.sp_error = le16_to_cpu(sp->error);
162 priv->sp.sp_offset = le16_to_cpu(sp->offset);
163 priv->sp.sp_stabletime = le16_to_cpu(sp->stabletime);
164 priv->sp.sp_calcontrol = sp->calcontrol;
165 priv->sp.sp_extsleepclk = sp->externalsleepclk;
166 priv->sp.sp_reserved = le16_to_cpu(sp->reserved);
167
168 lbs_deb_enter(LBS_DEB_CMD);
169 return 0;
170 }
171
172 static int lbs_ret_802_11_stat(struct lbs_private *priv,
173 struct cmd_ds_command *resp)
174 {
175 lbs_deb_enter(LBS_DEB_CMD);
176 /* currently priv->wlan802_11Stat is unused
177
178 struct cmd_ds_802_11_get_stat *p11Stat = &resp->params.gstat;
179
180 // TODO Convert it to Big endian befor copy
181 memcpy(&priv->wlan802_11Stat,
182 p11Stat, sizeof(struct cmd_ds_802_11_get_stat));
183 */
184 lbs_deb_leave(LBS_DEB_CMD);
185 return 0;
186 }
187
188 static int lbs_ret_802_11_snmp_mib(struct lbs_private *priv,
189 struct cmd_ds_command *resp)
190 {
191 struct cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
192 u16 oid = le16_to_cpu(smib->oid);
193 u16 querytype = le16_to_cpu(smib->querytype);
194
195 lbs_deb_enter(LBS_DEB_CMD);
196
197 lbs_deb_cmd("SNMP_RESP: oid 0x%x, querytype 0x%x\n", oid,
198 querytype);
199 lbs_deb_cmd("SNMP_RESP: Buf size %d\n", le16_to_cpu(smib->bufsize));
200
201 if (querytype == CMD_ACT_GET) {
202 switch (oid) {
203 case FRAGTHRESH_I:
204 priv->fragthsd =
205 le16_to_cpu(*((__le16 *)(smib->value)));
206 lbs_deb_cmd("SNMP_RESP: frag threshold %u\n",
207 priv->fragthsd);
208 break;
209 case RTSTHRESH_I:
210 priv->rtsthsd =
211 le16_to_cpu(*((__le16 *)(smib->value)));
212 lbs_deb_cmd("SNMP_RESP: rts threshold %u\n",
213 priv->rtsthsd);
214 break;
215 case SHORT_RETRYLIM_I:
216 priv->txretrycount =
217 le16_to_cpu(*((__le16 *)(smib->value)));
218 lbs_deb_cmd("SNMP_RESP: tx retry count %u\n",
219 priv->rtsthsd);
220 break;
221 default:
222 break;
223 }
224 }
225
226 lbs_deb_enter(LBS_DEB_CMD);
227 return 0;
228 }
229
230 static int lbs_ret_802_11_key_material(struct lbs_private *priv,
231 struct cmd_ds_command *resp)
232 {
233 struct cmd_ds_802_11_key_material *pkeymaterial =
234 &resp->params.keymaterial;
235 u16 action = le16_to_cpu(pkeymaterial->action);
236
237 lbs_deb_enter(LBS_DEB_CMD);
238
239 /* Copy the returned key to driver private data */
240 if (action == CMD_ACT_GET) {
241 u8 * buf_ptr = (u8 *) &pkeymaterial->keyParamSet;
242 u8 * resp_end = (u8 *) (resp + le16_to_cpu(resp->size));
243
244 while (buf_ptr < resp_end) {
245 struct MrvlIEtype_keyParamSet * pkeyparamset =
246 (struct MrvlIEtype_keyParamSet *) buf_ptr;
247 struct enc_key * pkey;
248 u16 param_set_len = le16_to_cpu(pkeyparamset->length);
249 u16 key_len = le16_to_cpu(pkeyparamset->keylen);
250 u16 key_flags = le16_to_cpu(pkeyparamset->keyinfo);
251 u16 key_type = le16_to_cpu(pkeyparamset->keytypeid);
252 u8 * end;
253
254 end = (u8 *) pkeyparamset + sizeof (pkeyparamset->type)
255 + sizeof (pkeyparamset->length)
256 + param_set_len;
257 /* Make sure we don't access past the end of the IEs */
258 if (end > resp_end)
259 break;
260
261 if (key_flags & KEY_INFO_WPA_UNICAST)
262 pkey = &priv->wpa_unicast_key;
263 else if (key_flags & KEY_INFO_WPA_MCAST)
264 pkey = &priv->wpa_mcast_key;
265 else
266 break;
267
268 /* Copy returned key into driver */
269 memset(pkey, 0, sizeof(struct enc_key));
270 if (key_len > sizeof(pkey->key))
271 break;
272 pkey->type = key_type;
273 pkey->flags = key_flags;
274 pkey->len = key_len;
275 memcpy(pkey->key, pkeyparamset->key, pkey->len);
276
277 buf_ptr = end + 1;
278 }
279 }
280
281 lbs_deb_enter(LBS_DEB_CMD);
282 return 0;
283 }
284
285 static int lbs_ret_802_11_mac_address(struct lbs_private *priv,
286 struct cmd_ds_command *resp)
287 {
288 struct cmd_ds_802_11_mac_address *macadd = &resp->params.macadd;
289
290 lbs_deb_enter(LBS_DEB_CMD);
291
292 memcpy(priv->current_addr, macadd->macadd, ETH_ALEN);
293
294 lbs_deb_enter(LBS_DEB_CMD);
295 return 0;
296 }
297
298 static int lbs_ret_802_11_rf_tx_power(struct lbs_private *priv,
299 struct cmd_ds_command *resp)
300 {
301 struct cmd_ds_802_11_rf_tx_power *rtp = &resp->params.txp;
302
303 lbs_deb_enter(LBS_DEB_CMD);
304
305 priv->txpowerlevel = le16_to_cpu(rtp->currentlevel);
306
307 lbs_deb_cmd("TX power currently %d\n", priv->txpowerlevel);
308
309 lbs_deb_leave(LBS_DEB_CMD);
310 return 0;
311 }
312
313 static int lbs_ret_802_11_rate_adapt_rateset(struct lbs_private *priv,
314 struct cmd_ds_command *resp)
315 {
316 struct cmd_ds_802_11_rate_adapt_rateset *rates = &resp->params.rateset;
317
318 lbs_deb_enter(LBS_DEB_CMD);
319
320 if (rates->action == CMD_ACT_GET) {
321 priv->enablehwauto = le16_to_cpu(rates->enablehwauto);
322 priv->ratebitmap = le16_to_cpu(rates->bitmap);
323 }
324
325 lbs_deb_leave(LBS_DEB_CMD);
326 return 0;
327 }
328
329 static int lbs_ret_802_11_rssi(struct lbs_private *priv,
330 struct cmd_ds_command *resp)
331 {
332 struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
333
334 lbs_deb_enter(LBS_DEB_CMD);
335
336 /* store the non average value */
337 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
338 priv->NF[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->noisefloor);
339
340 priv->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
341 priv->NF[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgnoisefloor);
342
343 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
344 CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
345 priv->NF[TYPE_BEACON][TYPE_NOAVG]);
346
347 priv->RSSI[TYPE_BEACON][TYPE_AVG] =
348 CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
349 priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
350
351 lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
352 priv->RSSI[TYPE_BEACON][TYPE_NOAVG],
353 priv->RSSI[TYPE_BEACON][TYPE_AVG]);
354
355 lbs_deb_leave(LBS_DEB_CMD);
356 return 0;
357 }
358
359 static int lbs_ret_802_11_eeprom_access(struct lbs_private *priv,
360 struct cmd_ds_command *resp)
361 {
362 struct lbs_ioctl_regrdwr *pbuf;
363 pbuf = (struct lbs_ioctl_regrdwr *) priv->prdeeprom;
364
365 lbs_deb_enter_args(LBS_DEB_CMD, "len %d",
366 le16_to_cpu(resp->params.rdeeprom.bytecount));
367 if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) {
368 pbuf->NOB = 0;
369 lbs_deb_cmd("EEPROM read length too big\n");
370 return -1;
371 }
372 pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount);
373 if (pbuf->NOB > 0) {
374
375 memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value,
376 le16_to_cpu(resp->params.rdeeprom.bytecount));
377 lbs_deb_hex(LBS_DEB_CMD, "EEPROM", (char *)&pbuf->value,
378 le16_to_cpu(resp->params.rdeeprom.bytecount));
379 }
380 lbs_deb_leave(LBS_DEB_CMD);
381 return 0;
382 }
383
384 static int lbs_ret_get_log(struct lbs_private *priv,
385 struct cmd_ds_command *resp)
386 {
387 struct cmd_ds_802_11_get_log *logmessage = &resp->params.glog;
388
389 lbs_deb_enter(LBS_DEB_CMD);
390
391 /* Stored little-endian */
392 memcpy(&priv->logmsg, logmessage, sizeof(struct cmd_ds_802_11_get_log));
393
394 lbs_deb_leave(LBS_DEB_CMD);
395 return 0;
396 }
397
398 static int lbs_ret_802_11_enable_rsn(struct lbs_private *priv,
399 struct cmd_ds_command *resp)
400 {
401 struct cmd_ds_802_11_enable_rsn *enable_rsn = &resp->params.enbrsn;
402 uint32_t * pdata_buf = (uint32_t *)priv->cur_cmd->callback_arg;
403
404 lbs_deb_enter(LBS_DEB_CMD);
405
406 if (enable_rsn->action == cpu_to_le16(CMD_ACT_GET)) {
407 if (pdata_buf)
408 *pdata_buf = (uint32_t) le16_to_cpu(enable_rsn->enable);
409 }
410
411 lbs_deb_leave(LBS_DEB_CMD);
412 return 0;
413 }
414
415 static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv,
416 struct cmd_ds_command *resp)
417 {
418 struct cmd_ds_802_11_beacon_control *bcn_ctrl =
419 &resp->params.bcn_ctrl;
420
421 lbs_deb_enter(LBS_DEB_CMD);
422
423 if (bcn_ctrl->action == CMD_ACT_GET) {
424 priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable);
425 priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period);
426 }
427
428 lbs_deb_enter(LBS_DEB_CMD);
429 return 0;
430 }
431
432 static int lbs_ret_802_11_subscribe_event(struct lbs_private *priv,
433 struct cmd_ds_command *resp)
434 {
435 struct cmd_ds_802_11_subscribe_event *cmd_event =
436 &resp->params.subscribe_event;
437 struct cmd_ds_802_11_subscribe_event *dst_event =
438 (void *)priv->cur_cmd->callback_arg;
439
440 lbs_deb_enter(LBS_DEB_CMD);
441
442 if (dst_event->action == cpu_to_le16(CMD_ACT_GET)) {
443 dst_event->events = cmd_event->events;
444 memcpy(dst_event->tlv, cmd_event->tlv, sizeof(dst_event->tlv));
445 }
446
447 lbs_deb_leave(LBS_DEB_CMD);
448 return 0;
449 }
450
451 static inline int handle_cmd_response(struct lbs_private *priv,
452 unsigned long dummy,
453 struct cmd_header *cmd_response)
454 {
455 struct cmd_ds_command *resp = (struct cmd_ds_command *) cmd_response;
456 int ret = 0;
457 unsigned long flags;
458 uint16_t respcmd = le16_to_cpu(resp->command);
459
460 lbs_deb_enter(LBS_DEB_HOST);
461
462 switch (respcmd) {
463 case CMD_RET(CMD_MAC_REG_ACCESS):
464 case CMD_RET(CMD_BBP_REG_ACCESS):
465 case CMD_RET(CMD_RF_REG_ACCESS):
466 ret = lbs_ret_reg_access(priv, respcmd, resp);
467 break;
468
469 case CMD_RET(CMD_802_11_SCAN):
470 ret = lbs_ret_80211_scan(priv, resp);
471 break;
472
473 case CMD_RET(CMD_802_11_GET_LOG):
474 ret = lbs_ret_get_log(priv, resp);
475 break;
476
477 case CMD_RET_802_11_ASSOCIATE:
478 case CMD_RET(CMD_802_11_ASSOCIATE):
479 case CMD_RET(CMD_802_11_REASSOCIATE):
480 ret = lbs_ret_80211_associate(priv, resp);
481 break;
482
483 case CMD_RET(CMD_802_11_DISASSOCIATE):
484 case CMD_RET(CMD_802_11_DEAUTHENTICATE):
485 ret = lbs_ret_80211_disassociate(priv, resp);
486 break;
487
488 case CMD_RET(CMD_802_11_AD_HOC_START):
489 case CMD_RET(CMD_802_11_AD_HOC_JOIN):
490 ret = lbs_ret_80211_ad_hoc_start(priv, resp);
491 break;
492
493 case CMD_RET(CMD_802_11_GET_STAT):
494 ret = lbs_ret_802_11_stat(priv, resp);
495 break;
496
497 case CMD_RET(CMD_802_11_SNMP_MIB):
498 ret = lbs_ret_802_11_snmp_mib(priv, resp);
499 break;
500
501 case CMD_RET(CMD_802_11_RF_TX_POWER):
502 ret = lbs_ret_802_11_rf_tx_power(priv, resp);
503 break;
504
505 case CMD_RET(CMD_802_11_SET_AFC):
506 case CMD_RET(CMD_802_11_GET_AFC):
507 spin_lock_irqsave(&priv->driver_lock, flags);
508 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.afc,
509 sizeof(struct cmd_ds_802_11_afc));
510 spin_unlock_irqrestore(&priv->driver_lock, flags);
511
512 break;
513
514 case CMD_RET(CMD_MAC_MULTICAST_ADR):
515 case CMD_RET(CMD_MAC_CONTROL):
516 case CMD_RET(CMD_802_11_SET_WEP):
517 case CMD_RET(CMD_802_11_RESET):
518 case CMD_RET(CMD_802_11_AUTHENTICATE):
519 case CMD_RET(CMD_802_11_RADIO_CONTROL):
520 case CMD_RET(CMD_802_11_BEACON_STOP):
521 break;
522
523 case CMD_RET(CMD_802_11_ENABLE_RSN):
524 ret = lbs_ret_802_11_enable_rsn(priv, resp);
525 break;
526
527 case CMD_RET(CMD_802_11_RATE_ADAPT_RATESET):
528 ret = lbs_ret_802_11_rate_adapt_rateset(priv, resp);
529 break;
530
531 case CMD_RET(CMD_802_11_RSSI):
532 ret = lbs_ret_802_11_rssi(priv, resp);
533 break;
534
535 case CMD_RET(CMD_802_11_MAC_ADDRESS):
536 ret = lbs_ret_802_11_mac_address(priv, resp);
537 break;
538
539 case CMD_RET(CMD_802_11_AD_HOC_STOP):
540 ret = lbs_ret_80211_ad_hoc_stop(priv, resp);
541 break;
542
543 case CMD_RET(CMD_802_11_KEY_MATERIAL):
544 ret = lbs_ret_802_11_key_material(priv, resp);
545 break;
546
547 case CMD_RET(CMD_802_11_EEPROM_ACCESS):
548 ret = lbs_ret_802_11_eeprom_access(priv, resp);
549 break;
550
551 case CMD_RET(CMD_802_11D_DOMAIN_INFO):
552 ret = lbs_ret_802_11d_domain_info(priv, resp);
553 break;
554
555 case CMD_RET(CMD_802_11_SLEEP_PARAMS):
556 ret = lbs_ret_802_11_sleep_params(priv, resp);
557 break;
558 case CMD_RET(CMD_802_11_INACTIVITY_TIMEOUT):
559 spin_lock_irqsave(&priv->driver_lock, flags);
560 *((uint16_t *) priv->cur_cmd->callback_arg) =
561 le16_to_cpu(resp->params.inactivity_timeout.timeout);
562 spin_unlock_irqrestore(&priv->driver_lock, flags);
563 break;
564
565 case CMD_RET(CMD_802_11_TPC_CFG):
566 spin_lock_irqsave(&priv->driver_lock, flags);
567 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.tpccfg,
568 sizeof(struct cmd_ds_802_11_tpc_cfg));
569 spin_unlock_irqrestore(&priv->driver_lock, flags);
570 break;
571 case CMD_RET(CMD_802_11_LED_GPIO_CTRL):
572 spin_lock_irqsave(&priv->driver_lock, flags);
573 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.ledgpio,
574 sizeof(struct cmd_ds_802_11_led_ctrl));
575 spin_unlock_irqrestore(&priv->driver_lock, flags);
576 break;
577 case CMD_RET(CMD_802_11_SUBSCRIBE_EVENT):
578 ret = lbs_ret_802_11_subscribe_event(priv, resp);
579 break;
580
581 case CMD_RET(CMD_802_11_PWR_CFG):
582 spin_lock_irqsave(&priv->driver_lock, flags);
583 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.pwrcfg,
584 sizeof(struct cmd_ds_802_11_pwr_cfg));
585 spin_unlock_irqrestore(&priv->driver_lock, flags);
586
587 break;
588
589 case CMD_RET(CMD_GET_TSF):
590 spin_lock_irqsave(&priv->driver_lock, flags);
591 memcpy((void *)priv->cur_cmd->callback_arg,
592 &resp->params.gettsf.tsfvalue, sizeof(u64));
593 spin_unlock_irqrestore(&priv->driver_lock, flags);
594 break;
595 case CMD_RET(CMD_BT_ACCESS):
596 spin_lock_irqsave(&priv->driver_lock, flags);
597 if (priv->cur_cmd->callback_arg)
598 memcpy((void *)priv->cur_cmd->callback_arg,
599 &resp->params.bt.addr1, 2 * ETH_ALEN);
600 spin_unlock_irqrestore(&priv->driver_lock, flags);
601 break;
602 case CMD_RET(CMD_FWT_ACCESS):
603 spin_lock_irqsave(&priv->driver_lock, flags);
604 if (priv->cur_cmd->callback_arg)
605 memcpy((void *)priv->cur_cmd->callback_arg, &resp->params.fwt,
606 sizeof(resp->params.fwt));
607 spin_unlock_irqrestore(&priv->driver_lock, flags);
608 break;
609 case CMD_RET(CMD_802_11_BEACON_CTRL):
610 ret = lbs_ret_802_11_bcn_ctrl(priv, resp);
611 break;
612
613 default:
614 lbs_deb_host("CMD_RESP: unknown cmd response 0x%04x\n",
615 le16_to_cpu(resp->command));
616 break;
617 }
618 lbs_deb_leave(LBS_DEB_HOST);
619 return ret;
620 }
621
622 int lbs_process_rx_command(struct lbs_private *priv)
623 {
624 uint16_t respcmd, curcmd;
625 struct cmd_header *resp;
626 int ret = 0;
627 unsigned long flags;
628 uint16_t result;
629
630 lbs_deb_enter(LBS_DEB_HOST);
631
632 mutex_lock(&priv->lock);
633 spin_lock_irqsave(&priv->driver_lock, flags);
634
635 if (!priv->cur_cmd) {
636 lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
637 ret = -1;
638 spin_unlock_irqrestore(&priv->driver_lock, flags);
639 goto done;
640 }
641
642 curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
643
644 resp = priv->cur_cmd->cmdbuf;
645
646 respcmd = le16_to_cpu(resp->command);
647 result = le16_to_cpu(resp->result);
648
649 lbs_deb_host("CMD_RESP: response 0x%04x, seq %d, size %d, jiffies %lu\n",
650 respcmd, le16_to_cpu(resp->seqnum), priv->upld_len, jiffies);
651 lbs_deb_hex(LBS_DEB_HOST, "CMD_RESP", (void *) resp, priv->upld_len);
652
653 if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
654 lbs_pr_info("Received CMD_RESP with invalid sequence %d (expected %d)\n",
655 le16_to_cpu(resp->seqnum), le16_to_cpu(priv->cur_cmd->cmdbuf->seqnum));
656 spin_unlock_irqrestore(&priv->driver_lock, flags);
657 ret = -1;
658 goto done;
659 }
660 if (respcmd != CMD_RET(curcmd) &&
661 respcmd != CMD_802_11_ASSOCIATE && curcmd != CMD_RET_802_11_ASSOCIATE) {
662 lbs_pr_info("Invalid CMD_RESP %x to command %x!\n", respcmd, curcmd);
663 spin_unlock_irqrestore(&priv->driver_lock, flags);
664 ret = -1;
665 goto done;
666 }
667
668 /* Now we got response from FW, cancel the command timer */
669 del_timer(&priv->command_timer);
670
671 /* Store the response code to cur_cmd_retcode. */
672 priv->cur_cmd_retcode = result;
673
674 if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
675 struct cmd_ds_802_11_ps_mode *psmode = (void *) resp;
676 u16 action = le16_to_cpu(psmode->action);
677
678 lbs_deb_host(
679 "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
680 result, action);
681
682 if (result) {
683 lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
684 result);
685 /*
686 * We should not re-try enter-ps command in
687 * ad-hoc mode. It takes place in
688 * lbs_execute_next_command().
689 */
690 if (priv->mode == IW_MODE_ADHOC &&
691 action == CMD_SUBCMD_ENTER_PS)
692 priv->psmode = LBS802_11POWERMODECAM;
693 } else if (action == CMD_SUBCMD_ENTER_PS) {
694 priv->needtowakeup = 0;
695 priv->psstate = PS_STATE_AWAKE;
696
697 lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
698 if (priv->connect_status != LBS_CONNECTED) {
699 /*
700 * When Deauth Event received before Enter_PS command
701 * response, We need to wake up the firmware.
702 */
703 lbs_deb_host(
704 "disconnected, invoking lbs_ps_wakeup\n");
705
706 spin_unlock_irqrestore(&priv->driver_lock, flags);
707 mutex_unlock(&priv->lock);
708 lbs_ps_wakeup(priv, 0);
709 mutex_lock(&priv->lock);
710 spin_lock_irqsave(&priv->driver_lock, flags);
711 }
712 } else if (action == CMD_SUBCMD_EXIT_PS) {
713 priv->needtowakeup = 0;
714 priv->psstate = PS_STATE_FULL_POWER;
715 lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
716 } else {
717 lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
718 }
719
720 lbs_complete_command(priv, priv->cur_cmd, result);
721 spin_unlock_irqrestore(&priv->driver_lock, flags);
722
723 ret = 0;
724 goto done;
725 }
726
727 /* If the command is not successful, cleanup and return failure */
728 if ((result != 0 || !(respcmd & 0x8000))) {
729 lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
730 result, respcmd);
731 /*
732 * Handling errors here
733 */
734 switch (respcmd) {
735 case CMD_RET(CMD_GET_HW_SPEC):
736 case CMD_RET(CMD_802_11_RESET):
737 lbs_deb_host("CMD_RESP: reset failed\n");
738 break;
739
740 }
741 lbs_complete_command(priv, priv->cur_cmd, result);
742 spin_unlock_irqrestore(&priv->driver_lock, flags);
743
744 ret = -1;
745 goto done;
746 }
747
748 spin_unlock_irqrestore(&priv->driver_lock, flags);
749
750 if (priv->cur_cmd && priv->cur_cmd->callback) {
751 ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
752 resp);
753 } else
754 ret = handle_cmd_response(priv, 0, resp);
755
756 spin_lock_irqsave(&priv->driver_lock, flags);
757
758 if (priv->cur_cmd) {
759 /* Clean up and Put current command back to cmdfreeq */
760 lbs_complete_command(priv, priv->cur_cmd, result);
761 }
762 spin_unlock_irqrestore(&priv->driver_lock, flags);
763
764 done:
765 mutex_unlock(&priv->lock);
766 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
767 return ret;
768 }
769
770 int lbs_process_event(struct lbs_private *priv)
771 {
772 int ret = 0;
773 u32 eventcause;
774
775 lbs_deb_enter(LBS_DEB_CMD);
776
777 spin_lock_irq(&priv->driver_lock);
778 eventcause = priv->eventcause >> SBI_EVENT_CAUSE_SHIFT;
779 spin_unlock_irq(&priv->driver_lock);
780
781 lbs_deb_cmd("event cause %d\n", eventcause);
782
783 switch (eventcause) {
784 case MACREG_INT_CODE_LINK_SENSED:
785 lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n");
786 break;
787
788 case MACREG_INT_CODE_DEAUTHENTICATED:
789 lbs_deb_cmd("EVENT: deauthenticated\n");
790 lbs_mac_event_disconnected(priv);
791 break;
792
793 case MACREG_INT_CODE_DISASSOCIATED:
794 lbs_deb_cmd("EVENT: disassociated\n");
795 lbs_mac_event_disconnected(priv);
796 break;
797
798 case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
799 lbs_deb_cmd("EVENT: link lost\n");
800 lbs_mac_event_disconnected(priv);
801 break;
802
803 case MACREG_INT_CODE_PS_SLEEP:
804 lbs_deb_cmd("EVENT: sleep\n");
805
806 /* handle unexpected PS SLEEP event */
807 if (priv->psstate == PS_STATE_FULL_POWER) {
808 lbs_deb_cmd(
809 "EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
810 break;
811 }
812 priv->psstate = PS_STATE_PRE_SLEEP;
813
814 lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
815
816 break;
817
818 case MACREG_INT_CODE_PS_AWAKE:
819 lbs_deb_cmd("EVENT: awake\n");
820
821 /* handle unexpected PS AWAKE event */
822 if (priv->psstate == PS_STATE_FULL_POWER) {
823 lbs_deb_cmd(
824 "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
825 break;
826 }
827
828 priv->psstate = PS_STATE_AWAKE;
829
830 if (priv->needtowakeup) {
831 /*
832 * wait for the command processing to finish
833 * before resuming sending
834 * priv->needtowakeup will be set to FALSE
835 * in lbs_ps_wakeup()
836 */
837 lbs_deb_cmd("waking up ...\n");
838 lbs_ps_wakeup(priv, 0);
839 }
840 break;
841
842 case MACREG_INT_CODE_MIC_ERR_UNICAST:
843 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
844 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
845 break;
846
847 case MACREG_INT_CODE_MIC_ERR_MULTICAST:
848 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
849 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
850 break;
851 case MACREG_INT_CODE_MIB_CHANGED:
852 case MACREG_INT_CODE_INIT_DONE:
853 break;
854
855 case MACREG_INT_CODE_ADHOC_BCN_LOST:
856 lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
857 break;
858
859 case MACREG_INT_CODE_RSSI_LOW:
860 lbs_pr_alert("EVENT: rssi low\n");
861 break;
862 case MACREG_INT_CODE_SNR_LOW:
863 lbs_pr_alert("EVENT: snr low\n");
864 break;
865 case MACREG_INT_CODE_MAX_FAIL:
866 lbs_pr_alert("EVENT: max fail\n");
867 break;
868 case MACREG_INT_CODE_RSSI_HIGH:
869 lbs_pr_alert("EVENT: rssi high\n");
870 break;
871 case MACREG_INT_CODE_SNR_HIGH:
872 lbs_pr_alert("EVENT: snr high\n");
873 break;
874
875 case MACREG_INT_CODE_MESH_AUTO_STARTED:
876 /* Ignore spurious autostart events if autostart is disabled */
877 if (!priv->mesh_autostart_enabled) {
878 lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
879 break;
880 }
881 lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
882 priv->mesh_connect_status = LBS_CONNECTED;
883 if (priv->mesh_open) {
884 netif_carrier_on(priv->mesh_dev);
885 if (!priv->tx_pending_len)
886 netif_wake_queue(priv->mesh_dev);
887 }
888 priv->mode = IW_MODE_ADHOC;
889 schedule_work(&priv->sync_channel);
890 break;
891
892 default:
893 lbs_pr_alert("EVENT: unknown event id %d\n", eventcause);
894 break;
895 }
896
897 spin_lock_irq(&priv->driver_lock);
898 priv->eventcause = 0;
899 spin_unlock_irq(&priv->driver_lock);
900
901 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
902 return ret;
903 }
x86 "subsystem" repository