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20#include "decl.h"
21#include "ioctl.h"
22#include "util.h"
23#include "fw.h"
24#include "main.h"
25#include "wmm.h"
26#include "11n.h"
27
28static struct mwifiex_debug_data items[] = {
29 {"debug_mask", item_size(debug_mask),
30 item_addr(debug_mask), 1},
31 {"int_counter", item_size(int_counter),
32 item_addr(int_counter), 1},
33 {"wmm_ac_vo", item_size(packets_out[WMM_AC_VO]),
34 item_addr(packets_out[WMM_AC_VO]), 1},
35 {"wmm_ac_vi", item_size(packets_out[WMM_AC_VI]),
36 item_addr(packets_out[WMM_AC_VI]), 1},
37 {"wmm_ac_be", item_size(packets_out[WMM_AC_BE]),
38 item_addr(packets_out[WMM_AC_BE]), 1},
39 {"wmm_ac_bk", item_size(packets_out[WMM_AC_BK]),
40 item_addr(packets_out[WMM_AC_BK]), 1},
41 {"tx_buf_size", item_size(tx_buf_size),
42 item_addr(tx_buf_size), 1},
43 {"curr_tx_buf_size", item_size(curr_tx_buf_size),
44 item_addr(curr_tx_buf_size), 1},
45 {"ps_mode", item_size(ps_mode),
46 item_addr(ps_mode), 1},
47 {"ps_state", item_size(ps_state),
48 item_addr(ps_state), 1},
49 {"is_deep_sleep", item_size(is_deep_sleep),
50 item_addr(is_deep_sleep), 1},
51 {"wakeup_dev_req", item_size(pm_wakeup_card_req),
52 item_addr(pm_wakeup_card_req), 1},
53 {"wakeup_tries", item_size(pm_wakeup_fw_try),
54 item_addr(pm_wakeup_fw_try), 1},
55 {"hs_configured", item_size(is_hs_configured),
56 item_addr(is_hs_configured), 1},
57 {"hs_activated", item_size(hs_activated),
58 item_addr(hs_activated), 1},
59 {"num_tx_timeout", item_size(num_tx_timeout),
60 item_addr(num_tx_timeout), 1},
61 {"is_cmd_timedout", item_size(is_cmd_timedout),
62 item_addr(is_cmd_timedout), 1},
63 {"timeout_cmd_id", item_size(timeout_cmd_id),
64 item_addr(timeout_cmd_id), 1},
65 {"timeout_cmd_act", item_size(timeout_cmd_act),
66 item_addr(timeout_cmd_act), 1},
67 {"last_cmd_id", item_size(last_cmd_id),
68 item_addr(last_cmd_id), DBG_CMD_NUM},
69 {"last_cmd_act", item_size(last_cmd_act),
70 item_addr(last_cmd_act), DBG_CMD_NUM},
71 {"last_cmd_index", item_size(last_cmd_index),
72 item_addr(last_cmd_index), 1},
73 {"last_cmd_resp_id", item_size(last_cmd_resp_id),
74 item_addr(last_cmd_resp_id), DBG_CMD_NUM},
75 {"last_cmd_resp_index", item_size(last_cmd_resp_index),
76 item_addr(last_cmd_resp_index), 1},
77 {"last_event", item_size(last_event),
78 item_addr(last_event), DBG_CMD_NUM},
79 {"last_event_index", item_size(last_event_index),
80 item_addr(last_event_index), 1},
81 {"last_mp_wr_bitmap", item_size(last_mp_wr_bitmap),
82 item_addr(last_mp_wr_bitmap), MWIFIEX_DBG_SDIO_MP_NUM},
83 {"last_mp_wr_ports", item_size(last_mp_wr_ports),
84 item_addr(last_mp_wr_ports), MWIFIEX_DBG_SDIO_MP_NUM},
85 {"last_mp_wr_len", item_size(last_mp_wr_len),
86 item_addr(last_mp_wr_len), MWIFIEX_DBG_SDIO_MP_NUM},
87 {"last_mp_curr_wr_port", item_size(last_mp_curr_wr_port),
88 item_addr(last_mp_curr_wr_port), MWIFIEX_DBG_SDIO_MP_NUM},
89 {"last_sdio_mp_index", item_size(last_sdio_mp_index),
90 item_addr(last_sdio_mp_index), 1},
91 {"num_cmd_h2c_fail", item_size(num_cmd_host_to_card_failure),
92 item_addr(num_cmd_host_to_card_failure), 1},
93 {"num_cmd_sleep_cfm_fail",
94 item_size(num_cmd_sleep_cfm_host_to_card_failure),
95 item_addr(num_cmd_sleep_cfm_host_to_card_failure), 1},
96 {"num_tx_h2c_fail", item_size(num_tx_host_to_card_failure),
97 item_addr(num_tx_host_to_card_failure), 1},
98 {"num_evt_deauth", item_size(num_event_deauth),
99 item_addr(num_event_deauth), 1},
100 {"num_evt_disassoc", item_size(num_event_disassoc),
101 item_addr(num_event_disassoc), 1},
102 {"num_evt_link_lost", item_size(num_event_link_lost),
103 item_addr(num_event_link_lost), 1},
104 {"num_cmd_deauth", item_size(num_cmd_deauth),
105 item_addr(num_cmd_deauth), 1},
106 {"num_cmd_assoc_ok", item_size(num_cmd_assoc_success),
107 item_addr(num_cmd_assoc_success), 1},
108 {"num_cmd_assoc_fail", item_size(num_cmd_assoc_failure),
109 item_addr(num_cmd_assoc_failure), 1},
110 {"cmd_sent", item_size(cmd_sent),
111 item_addr(cmd_sent), 1},
112 {"data_sent", item_size(data_sent),
113 item_addr(data_sent), 1},
114 {"cmd_resp_received", item_size(cmd_resp_received),
115 item_addr(cmd_resp_received), 1},
116 {"event_received", item_size(event_received),
117 item_addr(event_received), 1},
118
119
120 {"cmd_pending", adapter_item_size(cmd_pending),
121 adapter_item_addr(cmd_pending), 1},
122 {"tx_pending", adapter_item_size(tx_pending),
123 adapter_item_addr(tx_pending), 1},
124 {"rx_pending", adapter_item_size(rx_pending),
125 adapter_item_addr(rx_pending), 1},
126};
127
128static int num_of_items = ARRAY_SIZE(items);
129
130
131
132
133
134
135
136int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter)
137{
138
139 if (adapter->hw_status == MWIFIEX_HW_STATUS_READY)
140 if (adapter->if_ops.init_fw_port)
141 adapter->if_ops.init_fw_port(adapter);
142
143 adapter->init_wait_q_woken = true;
144 wake_up_interruptible(&adapter->init_wait_q);
145 return 0;
146}
147
148
149
150
151
152
153
154
155int mwifiex_shutdown_fw_complete(struct mwifiex_adapter *adapter)
156{
157 adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY;
158 adapter->init_wait_q_woken = true;
159 wake_up_interruptible(&adapter->init_wait_q);
160 return 0;
161}
162
163
164
165
166
167int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
168 u32 func_init_shutdown)
169{
170 u16 cmd;
171
172 if (func_init_shutdown == MWIFIEX_FUNC_INIT) {
173 cmd = HostCmd_CMD_FUNC_INIT;
174 } else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) {
175 cmd = HostCmd_CMD_FUNC_SHUTDOWN;
176 } else {
177 mwifiex_dbg(priv->adapter, ERROR,
178 "unsupported parameter\n");
179 return -1;
180 }
181
182 return mwifiex_send_cmd(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL, true);
183}
184EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw);
185
186
187
188
189
190
191
192int mwifiex_get_debug_info(struct mwifiex_private *priv,
193 struct mwifiex_debug_info *info)
194{
195 struct mwifiex_adapter *adapter = priv->adapter;
196
197 if (info) {
198 info->debug_mask = adapter->debug_mask;
199 memcpy(info->packets_out,
200 priv->wmm.packets_out,
201 sizeof(priv->wmm.packets_out));
202 info->curr_tx_buf_size = (u32) adapter->curr_tx_buf_size;
203 info->tx_buf_size = (u32) adapter->tx_buf_size;
204 info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(priv,
205 info->rx_tbl);
206 info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(priv,
207 info->tx_tbl);
208 info->tdls_peer_num = mwifiex_get_tdls_list(priv,
209 info->tdls_list);
210 info->ps_mode = adapter->ps_mode;
211 info->ps_state = adapter->ps_state;
212 info->is_deep_sleep = adapter->is_deep_sleep;
213 info->pm_wakeup_card_req = adapter->pm_wakeup_card_req;
214 info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try;
215 info->is_hs_configured = adapter->is_hs_configured;
216 info->hs_activated = adapter->hs_activated;
217 info->is_cmd_timedout = adapter->is_cmd_timedout;
218 info->num_cmd_host_to_card_failure
219 = adapter->dbg.num_cmd_host_to_card_failure;
220 info->num_cmd_sleep_cfm_host_to_card_failure
221 = adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure;
222 info->num_tx_host_to_card_failure
223 = adapter->dbg.num_tx_host_to_card_failure;
224 info->num_event_deauth = adapter->dbg.num_event_deauth;
225 info->num_event_disassoc = adapter->dbg.num_event_disassoc;
226 info->num_event_link_lost = adapter->dbg.num_event_link_lost;
227 info->num_cmd_deauth = adapter->dbg.num_cmd_deauth;
228 info->num_cmd_assoc_success =
229 adapter->dbg.num_cmd_assoc_success;
230 info->num_cmd_assoc_failure =
231 adapter->dbg.num_cmd_assoc_failure;
232 info->num_tx_timeout = adapter->dbg.num_tx_timeout;
233 info->timeout_cmd_id = adapter->dbg.timeout_cmd_id;
234 info->timeout_cmd_act = adapter->dbg.timeout_cmd_act;
235 memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id,
236 sizeof(adapter->dbg.last_cmd_id));
237 memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act,
238 sizeof(adapter->dbg.last_cmd_act));
239 info->last_cmd_index = adapter->dbg.last_cmd_index;
240 memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id,
241 sizeof(adapter->dbg.last_cmd_resp_id));
242 info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index;
243 memcpy(info->last_event, adapter->dbg.last_event,
244 sizeof(adapter->dbg.last_event));
245 info->last_event_index = adapter->dbg.last_event_index;
246 memcpy(info->last_mp_wr_bitmap, adapter->dbg.last_mp_wr_bitmap,
247 sizeof(adapter->dbg.last_mp_wr_bitmap));
248 memcpy(info->last_mp_wr_ports, adapter->dbg.last_mp_wr_ports,
249 sizeof(adapter->dbg.last_mp_wr_ports));
250 memcpy(info->last_mp_curr_wr_port,
251 adapter->dbg.last_mp_curr_wr_port,
252 sizeof(adapter->dbg.last_mp_curr_wr_port));
253 memcpy(info->last_mp_wr_len, adapter->dbg.last_mp_wr_len,
254 sizeof(adapter->dbg.last_mp_wr_len));
255 info->last_sdio_mp_index = adapter->dbg.last_sdio_mp_index;
256 info->data_sent = adapter->data_sent;
257 info->cmd_sent = adapter->cmd_sent;
258 info->cmd_resp_received = adapter->cmd_resp_received;
259 }
260
261 return 0;
262}
263
264int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf,
265 struct mwifiex_debug_info *info)
266{
267 char *p = buf;
268 struct mwifiex_debug_data *d = &items[0];
269 size_t size, addr;
270 long val;
271 int i, j;
272
273 if (!info)
274 return 0;
275
276 for (i = 0; i < num_of_items; i++) {
277 p += sprintf(p, "%s=", d[i].name);
278
279 size = d[i].size / d[i].num;
280
281 if (i < (num_of_items - 3))
282 addr = d[i].addr + (size_t)info;
283 else
284 addr = d[i].addr + (size_t)priv->adapter;
285
286 for (j = 0; j < d[i].num; j++) {
287 switch (size) {
288 case 1:
289 val = *((u8 *)addr);
290 break;
291 case 2:
292 val = *((u16 *)addr);
293 break;
294 case 4:
295 val = *((u32 *)addr);
296 break;
297 case 8:
298 val = *((long long *)addr);
299 break;
300 default:
301 val = -1;
302 break;
303 }
304
305 p += sprintf(p, "%#lx ", val);
306 addr += size;
307 }
308
309 p += sprintf(p, "\n");
310 }
311
312 if (info->tx_tbl_num) {
313 p += sprintf(p, "Tx BA stream table:\n");
314 for (i = 0; i < info->tx_tbl_num; i++)
315 p += sprintf(p, "tid = %d, ra = %pM\n",
316 info->tx_tbl[i].tid, info->tx_tbl[i].ra);
317 }
318
319 if (info->rx_tbl_num) {
320 p += sprintf(p, "Rx reorder table:\n");
321 for (i = 0; i < info->rx_tbl_num; i++) {
322 p += sprintf(p, "tid = %d, ta = %pM, ",
323 info->rx_tbl[i].tid,
324 info->rx_tbl[i].ta);
325 p += sprintf(p, "start_win = %d, ",
326 info->rx_tbl[i].start_win);
327 p += sprintf(p, "win_size = %d, buffer: ",
328 info->rx_tbl[i].win_size);
329
330 for (j = 0; j < info->rx_tbl[i].win_size; j++)
331 p += sprintf(p, "%c ",
332 info->rx_tbl[i].buffer[j] ?
333 '1' : '0');
334
335 p += sprintf(p, "\n");
336 }
337 }
338
339 if (info->tdls_peer_num) {
340 p += sprintf(p, "TDLS peer table:\n");
341 for (i = 0; i < info->tdls_peer_num; i++) {
342 p += sprintf(p, "peer = %pM",
343 info->tdls_list[i].peer_addr);
344 p += sprintf(p, "\n");
345 }
346 }
347
348 return p - buf;
349}
350
351static int
352mwifiex_parse_mgmt_packet(struct mwifiex_private *priv, u8 *payload, u16 len,
353 struct rxpd *rx_pd)
354{
355 u16 stype;
356 u8 category, action_code, *addr2;
357 struct ieee80211_hdr *ieee_hdr = (void *)payload;
358
359 stype = (le16_to_cpu(ieee_hdr->frame_control) & IEEE80211_FCTL_STYPE);
360
361 switch (stype) {
362 case IEEE80211_STYPE_ACTION:
363 category = *(payload + sizeof(struct ieee80211_hdr));
364 switch (category) {
365 case WLAN_CATEGORY_PUBLIC:
366 action_code = *(payload + sizeof(struct ieee80211_hdr)
367 + 1);
368 if (action_code == WLAN_PUB_ACTION_TDLS_DISCOVER_RES) {
369 addr2 = ieee_hdr->addr2;
370 mwifiex_dbg(priv->adapter, INFO,
371 "TDLS discovery response %pM nf=%d, snr=%d\n",
372 addr2, rx_pd->nf, rx_pd->snr);
373 mwifiex_auto_tdls_update_peer_signal(priv,
374 addr2,
375 rx_pd->snr,
376 rx_pd->nf);
377 }
378 break;
379 case WLAN_CATEGORY_BACK:
380
381 mwifiex_dbg(priv->adapter, INFO,
382 "drop BACK action frames");
383 return -1;
384 default:
385 mwifiex_dbg(priv->adapter, INFO,
386 "unknown public action frame category %d\n",
387 category);
388 }
389 break;
390 default:
391 mwifiex_dbg(priv->adapter, INFO,
392 "unknown mgmt frame subtype %#x\n", stype);
393 return 0;
394 }
395
396 return 0;
397}
398
399
400
401
402int
403mwifiex_process_mgmt_packet(struct mwifiex_private *priv,
404 struct sk_buff *skb)
405{
406 struct rxpd *rx_pd;
407 u16 pkt_len;
408 struct ieee80211_hdr *ieee_hdr;
409
410 if (!skb)
411 return -1;
412
413 if (!priv->mgmt_frame_mask ||
414 priv->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) {
415 mwifiex_dbg(priv->adapter, ERROR,
416 "do not receive mgmt frames on uninitialized intf");
417 return -1;
418 }
419
420 rx_pd = (struct rxpd *)skb->data;
421
422 skb_pull(skb, le16_to_cpu(rx_pd->rx_pkt_offset));
423 skb_pull(skb, sizeof(pkt_len));
424
425 pkt_len = le16_to_cpu(rx_pd->rx_pkt_length);
426
427 ieee_hdr = (void *)skb->data;
428 if (ieee80211_is_mgmt(ieee_hdr->frame_control)) {
429 if (mwifiex_parse_mgmt_packet(priv, (u8 *)ieee_hdr,
430 pkt_len, rx_pd))
431 return -1;
432 }
433
434 memmove(skb->data + sizeof(struct ieee80211_hdr_3addr),
435 skb->data + sizeof(struct ieee80211_hdr),
436 pkt_len - sizeof(struct ieee80211_hdr));
437
438 pkt_len -= ETH_ALEN + sizeof(pkt_len);
439 rx_pd->rx_pkt_length = cpu_to_le16(pkt_len);
440
441 cfg80211_rx_mgmt(&priv->wdev, priv->roc_cfg.chan.center_freq,
442 CAL_RSSI(rx_pd->snr, rx_pd->nf), skb->data, pkt_len,
443 0);
444
445 return 0;
446}
447
448
449
450
451
452
453
454
455
456
457int mwifiex_recv_packet(struct mwifiex_private *priv, struct sk_buff *skb)
458{
459 struct mwifiex_sta_node *src_node;
460 struct ethhdr *p_ethhdr;
461
462 if (!skb)
463 return -1;
464
465 priv->stats.rx_bytes += skb->len;
466 priv->stats.rx_packets++;
467
468 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
469 p_ethhdr = (void *)skb->data;
470 src_node = mwifiex_get_sta_entry(priv, p_ethhdr->h_source);
471 if (src_node) {
472 src_node->stats.last_rx = jiffies;
473 src_node->stats.rx_bytes += skb->len;
474 src_node->stats.rx_packets++;
475 }
476 }
477
478 skb->dev = priv->netdev;
479 skb->protocol = eth_type_trans(skb, priv->netdev);
480 skb->ip_summed = CHECKSUM_NONE;
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499 if ((priv->adapter->iface_type == MWIFIEX_USB ||
500 priv->adapter->iface_type == MWIFIEX_PCIE) &&
501 (skb->truesize > MWIFIEX_RX_DATA_BUF_SIZE))
502 skb->truesize += (skb->len - MWIFIEX_RX_DATA_BUF_SIZE);
503
504 if (in_interrupt())
505 netif_rx(skb);
506 else
507 netif_rx_ni(skb);
508
509 return 0;
510}
511
512
513
514
515
516
517
518
519
520
521int mwifiex_complete_cmd(struct mwifiex_adapter *adapter,
522 struct cmd_ctrl_node *cmd_node)
523{
524 WARN_ON(!cmd_node->wait_q_enabled);
525 mwifiex_dbg(adapter, CMD, "cmd completed: status=%d\n",
526 adapter->cmd_wait_q.status);
527
528 *cmd_node->condition = true;
529 wake_up_interruptible(&adapter->cmd_wait_q.wait);
530
531 return 0;
532}
533
534
535
536
537
538
539struct mwifiex_sta_node *
540mwifiex_get_sta_entry(struct mwifiex_private *priv, const u8 *mac)
541{
542 struct mwifiex_sta_node *node;
543
544 if (!mac)
545 return NULL;
546
547 list_for_each_entry(node, &priv->sta_list, list) {
548 if (!memcmp(node->mac_addr, mac, ETH_ALEN))
549 return node;
550 }
551
552 return NULL;
553}
554
555static struct mwifiex_sta_node *
556mwifiex_get_tdls_sta_entry(struct mwifiex_private *priv, u8 status)
557{
558 struct mwifiex_sta_node *node;
559
560 list_for_each_entry(node, &priv->sta_list, list) {
561 if (node->tdls_status == status)
562 return node;
563 }
564
565 return NULL;
566}
567
568
569
570
571u8 mwifiex_is_tdls_chan_switching(struct mwifiex_private *priv)
572{
573 struct mwifiex_sta_node *sta_ptr;
574
575 if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
576 return false;
577
578 sta_ptr = mwifiex_get_tdls_sta_entry(priv, TDLS_CHAN_SWITCHING);
579 if (sta_ptr)
580 return true;
581
582 return false;
583}
584
585u8 mwifiex_is_tdls_off_chan(struct mwifiex_private *priv)
586{
587 struct mwifiex_sta_node *sta_ptr;
588
589 if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
590 return false;
591
592 sta_ptr = mwifiex_get_tdls_sta_entry(priv, TDLS_IN_OFF_CHAN);
593 if (sta_ptr)
594 return true;
595
596 return false;
597}
598
599
600
601
602u8 mwifiex_is_send_cmd_allowed(struct mwifiex_private *priv)
603{
604 if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
605 return true;
606
607 if (mwifiex_is_tdls_chan_switching(priv) ||
608 mwifiex_is_tdls_off_chan(priv))
609 return false;
610
611 return true;
612}
613
614
615
616
617
618
619struct mwifiex_sta_node *
620mwifiex_add_sta_entry(struct mwifiex_private *priv, const u8 *mac)
621{
622 struct mwifiex_sta_node *node;
623 unsigned long flags;
624
625 if (!mac)
626 return NULL;
627
628 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
629 node = mwifiex_get_sta_entry(priv, mac);
630 if (node)
631 goto done;
632
633 node = kzalloc(sizeof(*node), GFP_ATOMIC);
634 if (!node)
635 goto done;
636
637 memcpy(node->mac_addr, mac, ETH_ALEN);
638 list_add_tail(&node->list, &priv->sta_list);
639
640done:
641 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
642 return node;
643}
644
645
646
647
648void
649mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies,
650 int ies_len, struct mwifiex_sta_node *node)
651{
652 struct ieee_types_header *ht_cap_ie;
653 const struct ieee80211_ht_cap *ht_cap;
654
655 if (!ies)
656 return;
657
658 ht_cap_ie = (void *)cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies,
659 ies_len);
660 if (ht_cap_ie) {
661 ht_cap = (void *)(ht_cap_ie + 1);
662 node->is_11n_enabled = 1;
663 node->max_amsdu = le16_to_cpu(ht_cap->cap_info) &
664 IEEE80211_HT_CAP_MAX_AMSDU ?
665 MWIFIEX_TX_DATA_BUF_SIZE_8K :
666 MWIFIEX_TX_DATA_BUF_SIZE_4K;
667 } else {
668 node->is_11n_enabled = 0;
669 }
670
671 return;
672}
673
674
675void mwifiex_del_sta_entry(struct mwifiex_private *priv, const u8 *mac)
676{
677 struct mwifiex_sta_node *node;
678 unsigned long flags;
679
680 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
681
682 node = mwifiex_get_sta_entry(priv, mac);
683 if (node) {
684 list_del(&node->list);
685 kfree(node);
686 }
687
688 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
689 return;
690}
691
692
693void mwifiex_del_all_sta_list(struct mwifiex_private *priv)
694{
695 struct mwifiex_sta_node *node, *tmp;
696 unsigned long flags;
697
698 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
699
700 list_for_each_entry_safe(node, tmp, &priv->sta_list, list) {
701 list_del(&node->list);
702 kfree(node);
703 }
704
705 INIT_LIST_HEAD(&priv->sta_list);
706 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
707 return;
708}
709
710
711void mwifiex_hist_data_add(struct mwifiex_private *priv,
712 u8 rx_rate, s8 snr, s8 nflr)
713{
714 struct mwifiex_histogram_data *phist_data = priv->hist_data;
715
716 if (atomic_read(&phist_data->num_samples) > MWIFIEX_HIST_MAX_SAMPLES)
717 mwifiex_hist_data_reset(priv);
718 mwifiex_hist_data_set(priv, rx_rate, snr, nflr);
719}
720
721
722void mwifiex_hist_data_set(struct mwifiex_private *priv, u8 rx_rate, s8 snr,
723 s8 nflr)
724{
725 struct mwifiex_histogram_data *phist_data = priv->hist_data;
726
727 atomic_inc(&phist_data->num_samples);
728 atomic_inc(&phist_data->rx_rate[rx_rate]);
729 atomic_inc(&phist_data->snr[snr]);
730 atomic_inc(&phist_data->noise_flr[128 + nflr]);
731 atomic_inc(&phist_data->sig_str[nflr - snr]);
732}
733
734
735void mwifiex_hist_data_reset(struct mwifiex_private *priv)
736{
737 int ix;
738 struct mwifiex_histogram_data *phist_data = priv->hist_data;
739
740 atomic_set(&phist_data->num_samples, 0);
741 for (ix = 0; ix < MWIFIEX_MAX_AC_RX_RATES; ix++)
742 atomic_set(&phist_data->rx_rate[ix], 0);
743 for (ix = 0; ix < MWIFIEX_MAX_SNR; ix++)
744 atomic_set(&phist_data->snr[ix], 0);
745 for (ix = 0; ix < MWIFIEX_MAX_NOISE_FLR; ix++)
746 atomic_set(&phist_data->noise_flr[ix], 0);
747 for (ix = 0; ix < MWIFIEX_MAX_SIG_STRENGTH; ix++)
748 atomic_set(&phist_data->sig_str[ix], 0);
749}
750
751void *mwifiex_alloc_dma_align_buf(int rx_len, gfp_t flags)
752{
753 struct sk_buff *skb;
754 int buf_len, pad;
755
756 buf_len = rx_len + MWIFIEX_RX_HEADROOM + MWIFIEX_DMA_ALIGN_SZ;
757
758 skb = __dev_alloc_skb(buf_len, flags);
759
760 if (!skb)
761 return NULL;
762
763 skb_reserve(skb, MWIFIEX_RX_HEADROOM);
764
765 pad = MWIFIEX_ALIGN_ADDR(skb->data, MWIFIEX_DMA_ALIGN_SZ) -
766 (long)skb->data;
767
768 skb_reserve(skb, pad);
769
770 return skb;
771}
772EXPORT_SYMBOL_GPL(mwifiex_alloc_dma_align_buf);
773