libertas: convert DATA_RATE to a direct command
[linux-3.10.git] / drivers / net / wireless / libertas / cmdresp.c
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         /* Free Tx and Rx packets */
47         kfree_skb(priv->currenttxskb);
48         priv->currenttxskb = NULL;
49
50         /* report disconnect to upper layer */
51         netif_stop_queue(priv->dev);
52         netif_carrier_off(priv->dev);
53
54         /* reset SNR/NF/RSSI values */
55         memset(priv->SNR, 0x00, sizeof(priv->SNR));
56         memset(priv->NF, 0x00, sizeof(priv->NF));
57         memset(priv->RSSI, 0x00, sizeof(priv->RSSI));
58         memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
59         memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
60         priv->nextSNRNF = 0;
61         priv->numSNRNF = 0;
62         priv->connect_status = LBS_DISCONNECTED;
63
64         /* Clear out associated SSID and BSSID since connection is
65          * no longer valid.
66          */
67         memset(&priv->curbssparams.bssid, 0, ETH_ALEN);
68         memset(&priv->curbssparams.ssid, 0, IW_ESSID_MAX_SIZE);
69         priv->curbssparams.ssid_len = 0;
70
71         if (priv->psstate != PS_STATE_FULL_POWER) {
72                 /* make firmware to exit PS mode */
73                 lbs_deb_cmd("disconnected, so exit PS mode\n");
74                 lbs_ps_wakeup(priv, 0);
75         }
76         lbs_deb_leave(LBS_DEB_CMD);
77 }
78
79 /**
80  *  @brief This function handles MIC failure event.
81  *
82  *  @param priv    A pointer to struct lbs_private structure
83  *  @para  event   the event id
84  *  @return        n/a
85  */
86 static void handle_mic_failureevent(struct lbs_private *priv, u32 event)
87 {
88         char buf[50];
89
90         lbs_deb_enter(LBS_DEB_CMD);
91         memset(buf, 0, sizeof(buf));
92
93         sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
94
95         if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) {
96                 strcat(buf, "unicast ");
97         } else {
98                 strcat(buf, "multicast ");
99         }
100
101         lbs_send_iwevcustom_event(priv, buf);
102         lbs_deb_leave(LBS_DEB_CMD);
103 }
104
105 static int lbs_ret_reg_access(struct lbs_private *priv,
106                                u16 type, struct cmd_ds_command *resp)
107 {
108         int ret = 0;
109
110         lbs_deb_enter(LBS_DEB_CMD);
111
112         switch (type) {
113         case CMD_RET(CMD_MAC_REG_ACCESS):
114                 {
115                         struct cmd_ds_mac_reg_access *reg = &resp->params.macreg;
116
117                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
118                         priv->offsetvalue.value = le32_to_cpu(reg->value);
119                         break;
120                 }
121
122         case CMD_RET(CMD_BBP_REG_ACCESS):
123                 {
124                         struct cmd_ds_bbp_reg_access *reg = &resp->params.bbpreg;
125
126                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
127                         priv->offsetvalue.value = reg->value;
128                         break;
129                 }
130
131         case CMD_RET(CMD_RF_REG_ACCESS):
132                 {
133                         struct cmd_ds_rf_reg_access *reg = &resp->params.rfreg;
134
135                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
136                         priv->offsetvalue.value = reg->value;
137                         break;
138                 }
139
140         default:
141                 ret = -1;
142         }
143
144         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
145         return ret;
146 }
147
148 static int lbs_ret_802_11_sleep_params(struct lbs_private *priv,
149                                         struct cmd_ds_command *resp)
150 {
151         struct cmd_ds_802_11_sleep_params *sp = &resp->params.sleep_params;
152
153         lbs_deb_enter(LBS_DEB_CMD);
154
155         lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, calcontrol 0x%x "
156                     "extsleepclk 0x%x\n", le16_to_cpu(sp->error),
157                     le16_to_cpu(sp->offset), le16_to_cpu(sp->stabletime),
158                     sp->calcontrol, sp->externalsleepclk);
159
160         priv->sp.sp_error = le16_to_cpu(sp->error);
161         priv->sp.sp_offset = le16_to_cpu(sp->offset);
162         priv->sp.sp_stabletime = le16_to_cpu(sp->stabletime);
163         priv->sp.sp_calcontrol = sp->calcontrol;
164         priv->sp.sp_extsleepclk = sp->externalsleepclk;
165         priv->sp.sp_reserved = le16_to_cpu(sp->reserved);
166
167         lbs_deb_enter(LBS_DEB_CMD);
168         return 0;
169 }
170
171 static int lbs_ret_802_11_stat(struct lbs_private *priv,
172                                 struct cmd_ds_command *resp)
173 {
174         lbs_deb_enter(LBS_DEB_CMD);
175 /*      currently priv->wlan802_11Stat is unused
176
177         struct cmd_ds_802_11_get_stat *p11Stat = &resp->params.gstat;
178
179         // TODO Convert it to Big endian befor copy
180         memcpy(&priv->wlan802_11Stat,
181                p11Stat, sizeof(struct cmd_ds_802_11_get_stat));
182 */
183         lbs_deb_leave(LBS_DEB_CMD);
184         return 0;
185 }
186
187 static int lbs_ret_802_11_snmp_mib(struct lbs_private *priv,
188                                     struct cmd_ds_command *resp)
189 {
190         struct cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
191         u16 oid = le16_to_cpu(smib->oid);
192         u16 querytype = le16_to_cpu(smib->querytype);
193
194         lbs_deb_enter(LBS_DEB_CMD);
195
196         lbs_deb_cmd("SNMP_RESP: oid 0x%x, querytype 0x%x\n", oid,
197                querytype);
198         lbs_deb_cmd("SNMP_RESP: Buf size %d\n", le16_to_cpu(smib->bufsize));
199
200         if (querytype == CMD_ACT_GET) {
201                 switch (oid) {
202                 case FRAGTHRESH_I:
203                         priv->fragthsd =
204                                 le16_to_cpu(*((__le16 *)(smib->value)));
205                         lbs_deb_cmd("SNMP_RESP: frag threshold %u\n",
206                                     priv->fragthsd);
207                         break;
208                 case RTSTHRESH_I:
209                         priv->rtsthsd =
210                                 le16_to_cpu(*((__le16 *)(smib->value)));
211                         lbs_deb_cmd("SNMP_RESP: rts threshold %u\n",
212                                     priv->rtsthsd);
213                         break;
214                 case SHORT_RETRYLIM_I:
215                         priv->txretrycount =
216                                 le16_to_cpu(*((__le16 *)(smib->value)));
217                         lbs_deb_cmd("SNMP_RESP: tx retry count %u\n",
218                                     priv->rtsthsd);
219                         break;
220                 default:
221                         break;
222                 }
223         }
224
225         lbs_deb_enter(LBS_DEB_CMD);
226         return 0;
227 }
228
229 static int lbs_ret_802_11_key_material(struct lbs_private *priv,
230                                         struct cmd_ds_command *resp)
231 {
232         struct cmd_ds_802_11_key_material *pkeymaterial =
233             &resp->params.keymaterial;
234         u16 action = le16_to_cpu(pkeymaterial->action);
235
236         lbs_deb_enter(LBS_DEB_CMD);
237
238         /* Copy the returned key to driver private data */
239         if (action == CMD_ACT_GET) {
240                 u8 * buf_ptr = (u8 *) &pkeymaterial->keyParamSet;
241                 u8 * resp_end = (u8 *) (resp + le16_to_cpu(resp->size));
242
243                 while (buf_ptr < resp_end) {
244                         struct MrvlIEtype_keyParamSet * pkeyparamset =
245                             (struct MrvlIEtype_keyParamSet *) buf_ptr;
246                         struct enc_key * pkey;
247                         u16 param_set_len = le16_to_cpu(pkeyparamset->length);
248                         u16 key_len = le16_to_cpu(pkeyparamset->keylen);
249                         u16 key_flags = le16_to_cpu(pkeyparamset->keyinfo);
250                         u16 key_type = le16_to_cpu(pkeyparamset->keytypeid);
251                         u8 * end;
252
253                         end = (u8 *) pkeyparamset + sizeof (pkeyparamset->type)
254                                                   + sizeof (pkeyparamset->length)
255                                                   + param_set_len;
256                         /* Make sure we don't access past the end of the IEs */
257                         if (end > resp_end)
258                                 break;
259
260                         if (key_flags & KEY_INFO_WPA_UNICAST)
261                                 pkey = &priv->wpa_unicast_key;
262                         else if (key_flags & KEY_INFO_WPA_MCAST)
263                                 pkey = &priv->wpa_mcast_key;
264                         else
265                                 break;
266
267                         /* Copy returned key into driver */
268                         memset(pkey, 0, sizeof(struct enc_key));
269                         if (key_len > sizeof(pkey->key))
270                                 break;
271                         pkey->type = key_type;
272                         pkey->flags = key_flags;
273                         pkey->len = key_len;
274                         memcpy(pkey->key, pkeyparamset->key, pkey->len);
275
276                         buf_ptr = end + 1;
277                 }
278         }
279
280         lbs_deb_enter(LBS_DEB_CMD);
281         return 0;
282 }
283
284 static int lbs_ret_802_11_mac_address(struct lbs_private *priv,
285                                        struct cmd_ds_command *resp)
286 {
287         struct cmd_ds_802_11_mac_address *macadd = &resp->params.macadd;
288
289         lbs_deb_enter(LBS_DEB_CMD);
290
291         memcpy(priv->current_addr, macadd->macadd, ETH_ALEN);
292
293         lbs_deb_enter(LBS_DEB_CMD);
294         return 0;
295 }
296
297 static int lbs_ret_802_11_rf_tx_power(struct lbs_private *priv,
298                                        struct cmd_ds_command *resp)
299 {
300         struct cmd_ds_802_11_rf_tx_power *rtp = &resp->params.txp;
301
302         lbs_deb_enter(LBS_DEB_CMD);
303
304         priv->txpowerlevel = le16_to_cpu(rtp->currentlevel);
305
306         lbs_deb_cmd("TX power currently %d\n", priv->txpowerlevel);
307
308         lbs_deb_leave(LBS_DEB_CMD);
309         return 0;
310 }
311
312 static int lbs_ret_802_11_rate_adapt_rateset(struct lbs_private *priv,
313                                               struct cmd_ds_command *resp)
314 {
315         struct cmd_ds_802_11_rate_adapt_rateset *rates = &resp->params.rateset;
316
317         lbs_deb_enter(LBS_DEB_CMD);
318
319         if (rates->action == CMD_ACT_GET) {
320                 priv->enablehwauto = le16_to_cpu(rates->enablehwauto);
321                 priv->ratebitmap = le16_to_cpu(rates->bitmap);
322         }
323
324         lbs_deb_leave(LBS_DEB_CMD);
325         return 0;
326 }
327
328 static int lbs_ret_802_11_rf_channel(struct lbs_private *priv,
329                                       struct cmd_ds_command *resp)
330 {
331         struct cmd_ds_802_11_rf_channel *rfchannel = &resp->params.rfchannel;
332         u16 action = le16_to_cpu(rfchannel->action);
333         u16 newchannel = le16_to_cpu(rfchannel->currentchannel);
334
335         lbs_deb_enter(LBS_DEB_CMD);
336
337         if (action == CMD_OPT_802_11_RF_CHANNEL_GET
338             && priv->curbssparams.channel != newchannel) {
339                 lbs_deb_cmd("channel switch from %d to %d\n",
340                        priv->curbssparams.channel, newchannel);
341
342                 /* Update the channel again */
343                 priv->curbssparams.channel = newchannel;
344         }
345
346         lbs_deb_enter(LBS_DEB_CMD);
347         return 0;
348 }
349
350 static int lbs_ret_802_11_rssi(struct lbs_private *priv,
351                                 struct cmd_ds_command *resp)
352 {
353         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
354
355         lbs_deb_enter(LBS_DEB_CMD);
356
357         /* store the non average value */
358         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
359         priv->NF[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->noisefloor);
360
361         priv->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
362         priv->NF[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgnoisefloor);
363
364         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
365             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
366                      priv->NF[TYPE_BEACON][TYPE_NOAVG]);
367
368         priv->RSSI[TYPE_BEACON][TYPE_AVG] =
369             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
370                      priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
371
372         lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
373                priv->RSSI[TYPE_BEACON][TYPE_NOAVG],
374                priv->RSSI[TYPE_BEACON][TYPE_AVG]);
375
376         lbs_deb_leave(LBS_DEB_CMD);
377         return 0;
378 }
379
380 static int lbs_ret_802_11_eeprom_access(struct lbs_private *priv,
381                                   struct cmd_ds_command *resp)
382 {
383         struct lbs_ioctl_regrdwr *pbuf;
384         pbuf = (struct lbs_ioctl_regrdwr *) priv->prdeeprom;
385
386         lbs_deb_enter_args(LBS_DEB_CMD, "len %d",
387                le16_to_cpu(resp->params.rdeeprom.bytecount));
388         if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) {
389                 pbuf->NOB = 0;
390                 lbs_deb_cmd("EEPROM read length too big\n");
391                 return -1;
392         }
393         pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount);
394         if (pbuf->NOB > 0) {
395
396                 memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value,
397                        le16_to_cpu(resp->params.rdeeprom.bytecount));
398                 lbs_deb_hex(LBS_DEB_CMD, "EEPROM", (char *)&pbuf->value,
399                         le16_to_cpu(resp->params.rdeeprom.bytecount));
400         }
401         lbs_deb_leave(LBS_DEB_CMD);
402         return 0;
403 }
404
405 static int lbs_ret_get_log(struct lbs_private *priv,
406                             struct cmd_ds_command *resp)
407 {
408         struct cmd_ds_802_11_get_log *logmessage = &resp->params.glog;
409
410         lbs_deb_enter(LBS_DEB_CMD);
411
412         /* Stored little-endian */
413         memcpy(&priv->logmsg, logmessage, sizeof(struct cmd_ds_802_11_get_log));
414
415         lbs_deb_leave(LBS_DEB_CMD);
416         return 0;
417 }
418
419 static int lbs_ret_802_11_enable_rsn(struct lbs_private *priv,
420                                           struct cmd_ds_command *resp)
421 {
422         struct cmd_ds_802_11_enable_rsn *enable_rsn = &resp->params.enbrsn;
423         u32 * pdata_buf = priv->cur_cmd->pdata_buf;
424
425         lbs_deb_enter(LBS_DEB_CMD);
426
427         if (enable_rsn->action == cpu_to_le16(CMD_ACT_GET)) {
428                 if (pdata_buf)
429                         *pdata_buf = (u32) le16_to_cpu(enable_rsn->enable);
430         }
431
432         lbs_deb_leave(LBS_DEB_CMD);
433         return 0;
434 }
435
436 static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv,
437                                         struct cmd_ds_command *resp)
438 {
439         struct cmd_ds_802_11_beacon_control *bcn_ctrl =
440             &resp->params.bcn_ctrl;
441
442         lbs_deb_enter(LBS_DEB_CMD);
443
444         if (bcn_ctrl->action == CMD_ACT_GET) {
445                 priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable);
446                 priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period);
447         }
448
449         lbs_deb_enter(LBS_DEB_CMD);
450         return 0;
451 }
452
453 static int lbs_ret_802_11_subscribe_event(struct lbs_private *priv,
454         struct cmd_ds_command *resp)
455 {
456         struct cmd_ds_802_11_subscribe_event *cmd_event =
457                 &resp->params.subscribe_event;
458         struct cmd_ds_802_11_subscribe_event *dst_event =
459                 priv->cur_cmd->pdata_buf;
460
461         lbs_deb_enter(LBS_DEB_CMD);
462
463         if (dst_event->action == cpu_to_le16(CMD_ACT_GET)) {
464                 dst_event->events = cmd_event->events;
465                 memcpy(dst_event->tlv, cmd_event->tlv, sizeof(dst_event->tlv));
466         }
467
468         lbs_deb_leave(LBS_DEB_CMD);
469         return 0;
470 }
471
472 static inline int handle_cmd_response(struct lbs_private *priv,
473                                       unsigned long dummy,
474                                       struct cmd_header *cmd_response)
475 {
476         struct cmd_ds_command *resp = (struct cmd_ds_command *) cmd_response;
477         int ret = 0;
478         unsigned long flags;
479         uint16_t respcmd = le16_to_cpu(resp->command);
480
481         lbs_deb_enter(LBS_DEB_HOST);
482
483         switch (respcmd) {
484         case CMD_RET(CMD_MAC_REG_ACCESS):
485         case CMD_RET(CMD_BBP_REG_ACCESS):
486         case CMD_RET(CMD_RF_REG_ACCESS):
487                 ret = lbs_ret_reg_access(priv, respcmd, resp);
488                 break;
489
490         case CMD_RET(CMD_802_11_SCAN):
491                 ret = lbs_ret_80211_scan(priv, resp);
492                 break;
493
494         case CMD_RET(CMD_802_11_GET_LOG):
495                 ret = lbs_ret_get_log(priv, resp);
496                 break;
497
498         case CMD_RET_802_11_ASSOCIATE:
499         case CMD_RET(CMD_802_11_ASSOCIATE):
500         case CMD_RET(CMD_802_11_REASSOCIATE):
501                 ret = lbs_ret_80211_associate(priv, resp);
502                 break;
503
504         case CMD_RET(CMD_802_11_DISASSOCIATE):
505         case CMD_RET(CMD_802_11_DEAUTHENTICATE):
506                 ret = lbs_ret_80211_disassociate(priv, resp);
507                 break;
508
509         case CMD_RET(CMD_802_11_AD_HOC_START):
510         case CMD_RET(CMD_802_11_AD_HOC_JOIN):
511                 ret = lbs_ret_80211_ad_hoc_start(priv, resp);
512                 break;
513
514         case CMD_RET(CMD_802_11_GET_STAT):
515                 ret = lbs_ret_802_11_stat(priv, resp);
516                 break;
517
518         case CMD_RET(CMD_802_11_SNMP_MIB):
519                 ret = lbs_ret_802_11_snmp_mib(priv, resp);
520                 break;
521
522         case CMD_RET(CMD_802_11_RF_TX_POWER):
523                 ret = lbs_ret_802_11_rf_tx_power(priv, resp);
524                 break;
525
526         case CMD_RET(CMD_802_11_SET_AFC):
527         case CMD_RET(CMD_802_11_GET_AFC):
528                 spin_lock_irqsave(&priv->driver_lock, flags);
529                 memmove(priv->cur_cmd->pdata_buf, &resp->params.afc,
530                         sizeof(struct cmd_ds_802_11_afc));
531                 spin_unlock_irqrestore(&priv->driver_lock, flags);
532
533                 break;
534
535         case CMD_RET(CMD_MAC_MULTICAST_ADR):
536         case CMD_RET(CMD_MAC_CONTROL):
537         case CMD_RET(CMD_802_11_SET_WEP):
538         case CMD_RET(CMD_802_11_RESET):
539         case CMD_RET(CMD_802_11_AUTHENTICATE):
540         case CMD_RET(CMD_802_11_RADIO_CONTROL):
541         case CMD_RET(CMD_802_11_BEACON_STOP):
542                 break;
543
544         case CMD_RET(CMD_802_11_ENABLE_RSN):
545                 ret = lbs_ret_802_11_enable_rsn(priv, resp);
546                 break;
547
548         case CMD_RET(CMD_802_11_RATE_ADAPT_RATESET):
549                 ret = lbs_ret_802_11_rate_adapt_rateset(priv, resp);
550                 break;
551         case CMD_RET(CMD_802_11_RF_CHANNEL):
552                 ret = lbs_ret_802_11_rf_channel(priv, resp);
553                 break;
554
555         case CMD_RET(CMD_802_11_RSSI):
556                 ret = lbs_ret_802_11_rssi(priv, resp);
557                 break;
558
559         case CMD_RET(CMD_802_11_MAC_ADDRESS):
560                 ret = lbs_ret_802_11_mac_address(priv, resp);
561                 break;
562
563         case CMD_RET(CMD_802_11_AD_HOC_STOP):
564                 ret = lbs_ret_80211_ad_hoc_stop(priv, resp);
565                 break;
566
567         case CMD_RET(CMD_802_11_KEY_MATERIAL):
568                 ret = lbs_ret_802_11_key_material(priv, resp);
569                 break;
570
571         case CMD_RET(CMD_802_11_EEPROM_ACCESS):
572                 ret = lbs_ret_802_11_eeprom_access(priv, resp);
573                 break;
574
575         case CMD_RET(CMD_802_11D_DOMAIN_INFO):
576                 ret = lbs_ret_802_11d_domain_info(priv, resp);
577                 break;
578
579         case CMD_RET(CMD_802_11_SLEEP_PARAMS):
580                 ret = lbs_ret_802_11_sleep_params(priv, resp);
581                 break;
582         case CMD_RET(CMD_802_11_INACTIVITY_TIMEOUT):
583                 spin_lock_irqsave(&priv->driver_lock, flags);
584                 *((u16 *) priv->cur_cmd->pdata_buf) =
585                     le16_to_cpu(resp->params.inactivity_timeout.timeout);
586                 spin_unlock_irqrestore(&priv->driver_lock, flags);
587                 break;
588
589         case CMD_RET(CMD_802_11_TPC_CFG):
590                 spin_lock_irqsave(&priv->driver_lock, flags);
591                 memmove(priv->cur_cmd->pdata_buf, &resp->params.tpccfg,
592                         sizeof(struct cmd_ds_802_11_tpc_cfg));
593                 spin_unlock_irqrestore(&priv->driver_lock, flags);
594                 break;
595         case CMD_RET(CMD_802_11_LED_GPIO_CTRL):
596                 spin_lock_irqsave(&priv->driver_lock, flags);
597                 memmove(priv->cur_cmd->pdata_buf, &resp->params.ledgpio,
598                         sizeof(struct cmd_ds_802_11_led_ctrl));
599                 spin_unlock_irqrestore(&priv->driver_lock, flags);
600                 break;
601         case CMD_RET(CMD_802_11_SUBSCRIBE_EVENT):
602                 ret = lbs_ret_802_11_subscribe_event(priv, resp);
603                 break;
604
605         case CMD_RET(CMD_802_11_PWR_CFG):
606                 spin_lock_irqsave(&priv->driver_lock, flags);
607                 memmove(priv->cur_cmd->pdata_buf, &resp->params.pwrcfg,
608                         sizeof(struct cmd_ds_802_11_pwr_cfg));
609                 spin_unlock_irqrestore(&priv->driver_lock, flags);
610
611                 break;
612
613         case CMD_RET(CMD_GET_TSF):
614                 spin_lock_irqsave(&priv->driver_lock, flags);
615                 memcpy(priv->cur_cmd->pdata_buf,
616                        &resp->params.gettsf.tsfvalue, sizeof(u64));
617                 spin_unlock_irqrestore(&priv->driver_lock, flags);
618                 break;
619         case CMD_RET(CMD_BT_ACCESS):
620                 spin_lock_irqsave(&priv->driver_lock, flags);
621                 if (priv->cur_cmd->pdata_buf)
622                         memcpy(priv->cur_cmd->pdata_buf,
623                                &resp->params.bt.addr1, 2 * ETH_ALEN);
624                 spin_unlock_irqrestore(&priv->driver_lock, flags);
625                 break;
626         case CMD_RET(CMD_FWT_ACCESS):
627                 spin_lock_irqsave(&priv->driver_lock, flags);
628                 if (priv->cur_cmd->pdata_buf)
629                         memcpy(priv->cur_cmd->pdata_buf, &resp->params.fwt,
630                                sizeof(resp->params.fwt));
631                 spin_unlock_irqrestore(&priv->driver_lock, flags);
632                 break;
633         case CMD_RET(CMD_802_11_BEACON_CTRL):
634                 ret = lbs_ret_802_11_bcn_ctrl(priv, resp);
635                 break;
636
637         default:
638                 lbs_deb_host("CMD_RESP: unknown cmd response 0x%04x\n",
639                             resp->command);
640                 break;
641         }
642         lbs_deb_leave(LBS_DEB_HOST);
643         return ret;
644 }
645
646 int lbs_process_rx_command(struct lbs_private *priv)
647 {
648         u16 respcmd;
649         struct cmd_header *resp;
650         int ret = 0;
651         ulong flags;
652         u16 result;
653
654         lbs_deb_enter(LBS_DEB_HOST);
655
656         /* Now we got response from FW, cancel the command timer */
657         del_timer(&priv->command_timer);
658
659         mutex_lock(&priv->lock);
660         spin_lock_irqsave(&priv->driver_lock, flags);
661
662         if (!priv->cur_cmd) {
663                 lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
664                 ret = -1;
665                 spin_unlock_irqrestore(&priv->driver_lock, flags);
666                 goto done;
667         }
668         resp = priv->cur_cmd->cmdbuf;
669
670         respcmd = le16_to_cpu(resp->command);
671         result = le16_to_cpu(resp->result);
672
673         lbs_deb_host("CMD_RESP: response 0x%04x, size %d, jiffies %lu\n",
674                 respcmd, priv->upld_len, jiffies);
675         lbs_deb_hex(LBS_DEB_HOST, "CMD_RESP", (void *) resp, priv->upld_len);
676
677         if (!(respcmd & 0x8000)) {
678                 lbs_deb_host("invalid response!\n");
679                 priv->cur_cmd_retcode = -1;
680                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
681                 priv->cur_cmd = NULL;
682                 spin_unlock_irqrestore(&priv->driver_lock, flags);
683                 ret = -1;
684                 goto done;
685         }
686
687         /* Store the response code to cur_cmd_retcode. */
688         priv->cur_cmd_retcode = result;
689
690         if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
691                 struct cmd_ds_802_11_ps_mode *psmode = (void *) resp;
692                 u16 action = le16_to_cpu(psmode->action);
693
694                 lbs_deb_host(
695                        "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
696                        result, action);
697
698                 if (result) {
699                         lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
700                                     result);
701                         /*
702                          * We should not re-try enter-ps command in
703                          * ad-hoc mode. It takes place in
704                          * lbs_execute_next_command().
705                          */
706                         if (priv->mode == IW_MODE_ADHOC &&
707                             action == CMD_SUBCMD_ENTER_PS)
708                                 priv->psmode = LBS802_11POWERMODECAM;
709                 } else if (action == CMD_SUBCMD_ENTER_PS) {
710                         priv->needtowakeup = 0;
711                         priv->psstate = PS_STATE_AWAKE;
712
713                         lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
714                         if (priv->connect_status != LBS_CONNECTED) {
715                                 /*
716                                  * When Deauth Event received before Enter_PS command
717                                  * response, We need to wake up the firmware.
718                                  */
719                                 lbs_deb_host(
720                                        "disconnected, invoking lbs_ps_wakeup\n");
721
722                                 spin_unlock_irqrestore(&priv->driver_lock, flags);
723                                 mutex_unlock(&priv->lock);
724                                 lbs_ps_wakeup(priv, 0);
725                                 mutex_lock(&priv->lock);
726                                 spin_lock_irqsave(&priv->driver_lock, flags);
727                         }
728                 } else if (action == CMD_SUBCMD_EXIT_PS) {
729                         priv->needtowakeup = 0;
730                         priv->psstate = PS_STATE_FULL_POWER;
731                         lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
732                 } else {
733                         lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
734                 }
735
736                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
737                 priv->cur_cmd = NULL;
738                 spin_unlock_irqrestore(&priv->driver_lock, flags);
739
740                 ret = 0;
741                 goto done;
742         }
743
744         /* If the command is not successful, cleanup and return failure */
745         if ((result != 0 || !(respcmd & 0x8000))) {
746                 lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
747                        result, respcmd);
748                 /*
749                  * Handling errors here
750                  */
751                 switch (respcmd) {
752                 case CMD_RET(CMD_GET_HW_SPEC):
753                 case CMD_RET(CMD_802_11_RESET):
754                         lbs_deb_host("CMD_RESP: reset failed\n");
755                         break;
756
757                 }
758
759                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
760                 priv->cur_cmd = NULL;
761                 spin_unlock_irqrestore(&priv->driver_lock, flags);
762
763                 ret = -1;
764                 goto done;
765         }
766
767         spin_unlock_irqrestore(&priv->driver_lock, flags);
768
769         if (priv->cur_cmd && priv->cur_cmd->callback) {
770                 ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
771                                 resp);
772         } else
773                 ret = handle_cmd_response(priv, 0, resp);
774
775         spin_lock_irqsave(&priv->driver_lock, flags);
776
777         if (priv->cur_cmd) {
778                 /* Clean up and Put current command back to cmdfreeq */
779                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
780                 priv->cur_cmd = NULL;
781         }
782         spin_unlock_irqrestore(&priv->driver_lock, flags);
783
784 done:
785         mutex_unlock(&priv->lock);
786         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
787         return ret;
788 }
789
790 int lbs_process_event(struct lbs_private *priv)
791 {
792         int ret = 0;
793         u32 eventcause;
794
795         lbs_deb_enter(LBS_DEB_CMD);
796
797         spin_lock_irq(&priv->driver_lock);
798         eventcause = priv->eventcause >> SBI_EVENT_CAUSE_SHIFT;
799         spin_unlock_irq(&priv->driver_lock);
800
801         lbs_deb_cmd("event cause %d\n", eventcause);
802
803         switch (eventcause) {
804         case MACREG_INT_CODE_LINK_SENSED:
805                 lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n");
806                 break;
807
808         case MACREG_INT_CODE_DEAUTHENTICATED:
809                 lbs_deb_cmd("EVENT: deauthenticated\n");
810                 lbs_mac_event_disconnected(priv);
811                 break;
812
813         case MACREG_INT_CODE_DISASSOCIATED:
814                 lbs_deb_cmd("EVENT: disassociated\n");
815                 lbs_mac_event_disconnected(priv);
816                 break;
817
818         case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
819                 lbs_deb_cmd("EVENT: link lost\n");
820                 lbs_mac_event_disconnected(priv);
821                 break;
822
823         case MACREG_INT_CODE_PS_SLEEP:
824                 lbs_deb_cmd("EVENT: sleep\n");
825
826                 /* handle unexpected PS SLEEP event */
827                 if (priv->psstate == PS_STATE_FULL_POWER) {
828                         lbs_deb_cmd(
829                                "EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
830                         break;
831                 }
832                 priv->psstate = PS_STATE_PRE_SLEEP;
833
834                 lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
835
836                 break;
837
838         case MACREG_INT_CODE_PS_AWAKE:
839                 lbs_deb_cmd("EVENT: awake\n");
840
841                 /* handle unexpected PS AWAKE event */
842                 if (priv->psstate == PS_STATE_FULL_POWER) {
843                         lbs_deb_cmd(
844                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
845                         break;
846                 }
847
848                 priv->psstate = PS_STATE_AWAKE;
849
850                 if (priv->needtowakeup) {
851                         /*
852                          * wait for the command processing to finish
853                          * before resuming sending
854                          * priv->needtowakeup will be set to FALSE
855                          * in lbs_ps_wakeup()
856                          */
857                         lbs_deb_cmd("waking up ...\n");
858                         lbs_ps_wakeup(priv, 0);
859                 }
860                 break;
861
862         case MACREG_INT_CODE_MIC_ERR_UNICAST:
863                 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
864                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
865                 break;
866
867         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
868                 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
869                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
870                 break;
871         case MACREG_INT_CODE_MIB_CHANGED:
872         case MACREG_INT_CODE_INIT_DONE:
873                 break;
874
875         case MACREG_INT_CODE_ADHOC_BCN_LOST:
876                 lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
877                 break;
878
879         case MACREG_INT_CODE_RSSI_LOW:
880                 lbs_pr_alert("EVENT: rssi low\n");
881                 break;
882         case MACREG_INT_CODE_SNR_LOW:
883                 lbs_pr_alert("EVENT: snr low\n");
884                 break;
885         case MACREG_INT_CODE_MAX_FAIL:
886                 lbs_pr_alert("EVENT: max fail\n");
887                 break;
888         case MACREG_INT_CODE_RSSI_HIGH:
889                 lbs_pr_alert("EVENT: rssi high\n");
890                 break;
891         case MACREG_INT_CODE_SNR_HIGH:
892                 lbs_pr_alert("EVENT: snr high\n");
893                 break;
894
895         case MACREG_INT_CODE_MESH_AUTO_STARTED:
896                 /* Ignore spurious autostart events if autostart is disabled */
897                 if (!priv->mesh_autostart_enabled) {
898                         lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
899                         break;
900                 }
901                 lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
902                 priv->mesh_connect_status = LBS_CONNECTED;
903                 if (priv->mesh_open == 1) {
904                         netif_wake_queue(priv->mesh_dev);
905                         netif_carrier_on(priv->mesh_dev);
906                 }
907                 priv->mode = IW_MODE_ADHOC;
908                 schedule_work(&priv->sync_channel);
909                 break;
910
911         default:
912                 lbs_pr_alert("EVENT: unknown event id %d\n", eventcause);
913                 break;
914         }
915
916         spin_lock_irq(&priv->driver_lock);
917         priv->eventcause = 0;
918         spin_unlock_irq(&priv->driver_lock);
919
920         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
921         return ret;
922 }