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20#include <linux/suspend.h>
21
22#include "main.h"
23#include "wmm.h"
24#include "cfg80211.h"
25#include "11n.h"
26
27#define VERSION "1.0"
28#define MFG_FIRMWARE "mwifiex_mfg.bin"
29
30static unsigned int debug_mask = MWIFIEX_DEFAULT_DEBUG_MASK;
31module_param(debug_mask, uint, 0);
32MODULE_PARM_DESC(debug_mask, "bitmap for debug flags");
33
34const char driver_version[] = "mwifiex " VERSION " (%s) ";
35static char *cal_data_cfg;
36module_param(cal_data_cfg, charp, 0);
37
38static unsigned short driver_mode;
39module_param(driver_mode, ushort, 0);
40MODULE_PARM_DESC(driver_mode,
41 "station=0x1(default), ap-sta=0x3, station-p2p=0x5, ap-sta-p2p=0x7");
42
43bool mfg_mode;
44module_param(mfg_mode, bool, 0);
45MODULE_PARM_DESC(mfg_mode, "manufacturing mode enable:1, disable:0");
46
47bool aggr_ctrl;
48module_param(aggr_ctrl, bool, 0000);
49MODULE_PARM_DESC(aggr_ctrl, "usb tx aggregation enable:1, disable:0");
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66static int mwifiex_register(void *card, struct device *dev,
67 struct mwifiex_if_ops *if_ops, void **padapter)
68{
69 struct mwifiex_adapter *adapter;
70 int i;
71
72 adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL);
73 if (!adapter)
74 return -ENOMEM;
75
76 *padapter = adapter;
77 adapter->dev = dev;
78 adapter->card = card;
79
80
81 memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops));
82 adapter->debug_mask = debug_mask;
83
84
85 if (adapter->if_ops.init_if)
86 if (adapter->if_ops.init_if(adapter))
87 goto error;
88
89 adapter->priv_num = 0;
90
91 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
92
93 adapter->priv[i] =
94 kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL);
95 if (!adapter->priv[i])
96 goto error;
97
98 adapter->priv[i]->adapter = adapter;
99 adapter->priv_num++;
100 }
101 mwifiex_init_lock_list(adapter);
102
103 setup_timer(&adapter->cmd_timer, mwifiex_cmd_timeout_func,
104 (unsigned long)adapter);
105
106 return 0;
107
108error:
109 mwifiex_dbg(adapter, ERROR,
110 "info: leave mwifiex_register with error\n");
111
112 for (i = 0; i < adapter->priv_num; i++)
113 kfree(adapter->priv[i]);
114
115 kfree(adapter);
116
117 return -1;
118}
119
120
121
122
123
124
125
126
127
128
129
130static int mwifiex_unregister(struct mwifiex_adapter *adapter)
131{
132 s32 i;
133
134 if (adapter->if_ops.cleanup_if)
135 adapter->if_ops.cleanup_if(adapter);
136
137 del_timer_sync(&adapter->cmd_timer);
138
139
140 for (i = 0; i < adapter->priv_num; i++) {
141 if (adapter->priv[i]) {
142 mwifiex_free_curr_bcn(adapter->priv[i]);
143 kfree(adapter->priv[i]);
144 }
145 }
146
147 if (adapter->nd_info) {
148 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
149 kfree(adapter->nd_info->matches[i]);
150 kfree(adapter->nd_info);
151 adapter->nd_info = NULL;
152 }
153
154 kfree(adapter->regd);
155
156 kfree(adapter);
157 return 0;
158}
159
160void mwifiex_queue_main_work(struct mwifiex_adapter *adapter)
161{
162 unsigned long flags;
163
164 spin_lock_irqsave(&adapter->main_proc_lock, flags);
165 if (adapter->mwifiex_processing) {
166 adapter->more_task_flag = true;
167 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
168 } else {
169 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
170 queue_work(adapter->workqueue, &adapter->main_work);
171 }
172}
173EXPORT_SYMBOL_GPL(mwifiex_queue_main_work);
174
175static void mwifiex_queue_rx_work(struct mwifiex_adapter *adapter)
176{
177 unsigned long flags;
178
179 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
180 if (adapter->rx_processing) {
181 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
182 } else {
183 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
184 queue_work(adapter->rx_workqueue, &adapter->rx_work);
185 }
186}
187
188static int mwifiex_process_rx(struct mwifiex_adapter *adapter)
189{
190 unsigned long flags;
191 struct sk_buff *skb;
192 struct mwifiex_rxinfo *rx_info;
193
194 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
195 if (adapter->rx_processing || adapter->rx_locked) {
196 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
197 goto exit_rx_proc;
198 } else {
199 adapter->rx_processing = true;
200 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
201 }
202
203
204 while ((skb = skb_dequeue(&adapter->rx_data_q))) {
205 atomic_dec(&adapter->rx_pending);
206 if ((adapter->delay_main_work ||
207 adapter->iface_type == MWIFIEX_USB) &&
208 (atomic_read(&adapter->rx_pending) < LOW_RX_PENDING)) {
209 if (adapter->if_ops.submit_rem_rx_urbs)
210 adapter->if_ops.submit_rem_rx_urbs(adapter);
211 adapter->delay_main_work = false;
212 mwifiex_queue_main_work(adapter);
213 }
214 rx_info = MWIFIEX_SKB_RXCB(skb);
215 if (rx_info->buf_type == MWIFIEX_TYPE_AGGR_DATA) {
216 if (adapter->if_ops.deaggr_pkt)
217 adapter->if_ops.deaggr_pkt(adapter, skb);
218 dev_kfree_skb_any(skb);
219 } else {
220 mwifiex_handle_rx_packet(adapter, skb);
221 }
222 }
223 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
224 adapter->rx_processing = false;
225 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
226
227exit_rx_proc:
228 return 0;
229}
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246int mwifiex_main_process(struct mwifiex_adapter *adapter)
247{
248 int ret = 0;
249 unsigned long flags;
250
251 spin_lock_irqsave(&adapter->main_proc_lock, flags);
252
253
254 if (adapter->mwifiex_processing || adapter->main_locked) {
255 adapter->more_task_flag = true;
256 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
257 return 0;
258 } else {
259 adapter->mwifiex_processing = true;
260 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
261 }
262process_start:
263 do {
264 if (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)
265 break;
266
267
268
269
270
271
272
273
274 if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING &&
275 adapter->iface_type != MWIFIEX_USB) {
276 adapter->delay_main_work = true;
277 mwifiex_queue_rx_work(adapter);
278 break;
279 }
280
281
282 if (adapter->int_status) {
283 if (adapter->hs_activated)
284 mwifiex_process_hs_config(adapter);
285 if (adapter->if_ops.process_int_status)
286 adapter->if_ops.process_int_status(adapter);
287 }
288
289 if (adapter->rx_work_enabled && adapter->data_received)
290 mwifiex_queue_rx_work(adapter);
291
292
293 if ((adapter->ps_state == PS_STATE_SLEEP) &&
294 (adapter->pm_wakeup_card_req &&
295 !adapter->pm_wakeup_fw_try) &&
296 (is_command_pending(adapter) ||
297 !skb_queue_empty(&adapter->tx_data_q) ||
298 !mwifiex_bypass_txlist_empty(adapter) ||
299 !mwifiex_wmm_lists_empty(adapter))) {
300 adapter->pm_wakeup_fw_try = true;
301 mod_timer(&adapter->wakeup_timer, jiffies + (HZ*3));
302 adapter->if_ops.wakeup(adapter);
303 continue;
304 }
305
306 if (IS_CARD_RX_RCVD(adapter)) {
307 adapter->data_received = false;
308 adapter->pm_wakeup_fw_try = false;
309 del_timer(&adapter->wakeup_timer);
310 if (adapter->ps_state == PS_STATE_SLEEP)
311 adapter->ps_state = PS_STATE_AWAKE;
312 } else {
313
314 if (adapter->pm_wakeup_fw_try)
315 break;
316 if (adapter->ps_state == PS_STATE_PRE_SLEEP)
317 mwifiex_check_ps_cond(adapter);
318
319 if (adapter->ps_state != PS_STATE_AWAKE)
320 break;
321 if (adapter->tx_lock_flag) {
322 if (adapter->iface_type == MWIFIEX_USB) {
323 if (!adapter->usb_mc_setup)
324 break;
325 } else
326 break;
327 }
328
329 if ((!adapter->scan_chan_gap_enabled &&
330 adapter->scan_processing) || adapter->data_sent ||
331 mwifiex_is_tdls_chan_switching
332 (mwifiex_get_priv(adapter,
333 MWIFIEX_BSS_ROLE_STA)) ||
334 (mwifiex_wmm_lists_empty(adapter) &&
335 mwifiex_bypass_txlist_empty(adapter) &&
336 skb_queue_empty(&adapter->tx_data_q))) {
337 if (adapter->cmd_sent || adapter->curr_cmd ||
338 !mwifiex_is_send_cmd_allowed
339 (mwifiex_get_priv(adapter,
340 MWIFIEX_BSS_ROLE_STA)) ||
341 (!is_command_pending(adapter)))
342 break;
343 }
344 }
345
346
347 if (adapter->event_received) {
348 adapter->event_received = false;
349 mwifiex_process_event(adapter);
350 }
351
352
353 if (adapter->cmd_resp_received) {
354 adapter->cmd_resp_received = false;
355 mwifiex_process_cmdresp(adapter);
356
357
358 if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) {
359 adapter->hw_status = MWIFIEX_HW_STATUS_READY;
360 mwifiex_init_fw_complete(adapter);
361 }
362 }
363
364
365
366 if (adapter->ps_state == PS_STATE_PRE_SLEEP)
367 mwifiex_check_ps_cond(adapter);
368
369
370
371
372 if ((adapter->ps_state == PS_STATE_SLEEP) ||
373 (adapter->ps_state == PS_STATE_PRE_SLEEP) ||
374 (adapter->ps_state == PS_STATE_SLEEP_CFM)) {
375 continue;
376 }
377
378 if (adapter->tx_lock_flag) {
379 if (adapter->iface_type == MWIFIEX_USB) {
380 if (!adapter->usb_mc_setup)
381 continue;
382 } else
383 continue;
384 }
385
386 if (!adapter->cmd_sent && !adapter->curr_cmd &&
387 mwifiex_is_send_cmd_allowed
388 (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA))) {
389 if (mwifiex_exec_next_cmd(adapter) == -1) {
390 ret = -1;
391 break;
392 }
393 }
394
395
396
397
398 if (adapter->iface_type == MWIFIEX_USB &&
399 adapter->usb_mc_setup)
400 continue;
401
402 if ((adapter->scan_chan_gap_enabled ||
403 !adapter->scan_processing) &&
404 !adapter->data_sent &&
405 !skb_queue_empty(&adapter->tx_data_q)) {
406 mwifiex_process_tx_queue(adapter);
407 if (adapter->hs_activated) {
408 adapter->is_hs_configured = false;
409 mwifiex_hs_activated_event
410 (mwifiex_get_priv
411 (adapter, MWIFIEX_BSS_ROLE_ANY),
412 false);
413 }
414 }
415
416 if ((adapter->scan_chan_gap_enabled ||
417 !adapter->scan_processing) &&
418 !adapter->data_sent &&
419 !mwifiex_bypass_txlist_empty(adapter) &&
420 !mwifiex_is_tdls_chan_switching
421 (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA))) {
422 mwifiex_process_bypass_tx(adapter);
423 if (adapter->hs_activated) {
424 adapter->is_hs_configured = false;
425 mwifiex_hs_activated_event
426 (mwifiex_get_priv
427 (adapter, MWIFIEX_BSS_ROLE_ANY),
428 false);
429 }
430 }
431
432 if ((adapter->scan_chan_gap_enabled ||
433 !adapter->scan_processing) &&
434 !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter) &&
435 !mwifiex_is_tdls_chan_switching
436 (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA))) {
437 mwifiex_wmm_process_tx(adapter);
438 if (adapter->hs_activated) {
439 adapter->is_hs_configured = false;
440 mwifiex_hs_activated_event
441 (mwifiex_get_priv
442 (adapter, MWIFIEX_BSS_ROLE_ANY),
443 false);
444 }
445 }
446
447 if (adapter->delay_null_pkt && !adapter->cmd_sent &&
448 !adapter->curr_cmd && !is_command_pending(adapter) &&
449 (mwifiex_wmm_lists_empty(adapter) &&
450 mwifiex_bypass_txlist_empty(adapter) &&
451 skb_queue_empty(&adapter->tx_data_q))) {
452 if (!mwifiex_send_null_packet
453 (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
454 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
455 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) {
456 adapter->delay_null_pkt = false;
457 adapter->ps_state = PS_STATE_SLEEP;
458 }
459 break;
460 }
461 } while (true);
462
463 spin_lock_irqsave(&adapter->main_proc_lock, flags);
464 if (adapter->more_task_flag) {
465 adapter->more_task_flag = false;
466 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
467 goto process_start;
468 }
469 adapter->mwifiex_processing = false;
470 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
471
472 return ret;
473}
474EXPORT_SYMBOL_GPL(mwifiex_main_process);
475
476
477
478
479
480
481
482static void mwifiex_free_adapter(struct mwifiex_adapter *adapter)
483{
484 if (!adapter) {
485 pr_err("%s: adapter is NULL\n", __func__);
486 return;
487 }
488
489 mwifiex_unregister(adapter);
490 pr_debug("info: %s: free adapter\n", __func__);
491}
492
493
494
495
496
497static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter)
498{
499 if (adapter->workqueue) {
500 flush_workqueue(adapter->workqueue);
501 destroy_workqueue(adapter->workqueue);
502 adapter->workqueue = NULL;
503 }
504
505 if (adapter->rx_workqueue) {
506 flush_workqueue(adapter->rx_workqueue);
507 destroy_workqueue(adapter->rx_workqueue);
508 adapter->rx_workqueue = NULL;
509 }
510}
511
512
513
514
515
516
517
518
519static int _mwifiex_fw_dpc(const struct firmware *firmware, void *context)
520{
521 int ret;
522 char fmt[64];
523 struct mwifiex_adapter *adapter = context;
524 struct mwifiex_fw_image fw;
525 bool init_failed = false;
526 struct wireless_dev *wdev;
527 struct completion *fw_done = adapter->fw_done;
528
529 if (!firmware) {
530 mwifiex_dbg(adapter, ERROR,
531 "Failed to get firmware %s\n", adapter->fw_name);
532 goto err_dnld_fw;
533 }
534
535 memset(&fw, 0, sizeof(struct mwifiex_fw_image));
536 adapter->firmware = firmware;
537 fw.fw_buf = (u8 *) adapter->firmware->data;
538 fw.fw_len = adapter->firmware->size;
539
540 if (adapter->if_ops.dnld_fw) {
541 ret = adapter->if_ops.dnld_fw(adapter, &fw);
542 } else {
543 ret = mwifiex_dnld_fw(adapter, &fw);
544 }
545
546 if (ret == -1)
547 goto err_dnld_fw;
548
549 mwifiex_dbg(adapter, MSG, "WLAN FW is active\n");
550
551 if (cal_data_cfg) {
552 if ((request_firmware(&adapter->cal_data, cal_data_cfg,
553 adapter->dev)) < 0)
554 mwifiex_dbg(adapter, ERROR,
555 "Cal data request_firmware() failed\n");
556 }
557
558
559 if (adapter->if_ops.enable_int) {
560 if (adapter->if_ops.enable_int(adapter))
561 goto err_dnld_fw;
562 }
563
564 adapter->init_wait_q_woken = false;
565 ret = mwifiex_init_fw(adapter);
566 if (ret == -1) {
567 goto err_init_fw;
568 } else if (!ret) {
569 adapter->hw_status = MWIFIEX_HW_STATUS_READY;
570 goto done;
571 }
572
573 if (!adapter->mfg_mode) {
574 wait_event_interruptible(adapter->init_wait_q,
575 adapter->init_wait_q_woken);
576 if (adapter->hw_status != MWIFIEX_HW_STATUS_READY)
577 goto err_init_fw;
578 }
579
580 if (!adapter->wiphy) {
581 if (mwifiex_register_cfg80211(adapter)) {
582 mwifiex_dbg(adapter, ERROR,
583 "cannot register with cfg80211\n");
584 goto err_init_fw;
585 }
586 }
587
588 if (mwifiex_init_channel_scan_gap(adapter)) {
589 mwifiex_dbg(adapter, ERROR,
590 "could not init channel stats table\n");
591 goto err_init_chan_scan;
592 }
593
594 if (driver_mode) {
595 driver_mode &= MWIFIEX_DRIVER_MODE_BITMASK;
596 driver_mode |= MWIFIEX_DRIVER_MODE_STA;
597 }
598
599 rtnl_lock();
600
601 wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", NET_NAME_ENUM,
602 NL80211_IFTYPE_STATION, NULL);
603 if (IS_ERR(wdev)) {
604 mwifiex_dbg(adapter, ERROR,
605 "cannot create default STA interface\n");
606 rtnl_unlock();
607 goto err_add_intf;
608 }
609
610 if (driver_mode & MWIFIEX_DRIVER_MODE_UAP) {
611 wdev = mwifiex_add_virtual_intf(adapter->wiphy, "uap%d", NET_NAME_ENUM,
612 NL80211_IFTYPE_AP, NULL);
613 if (IS_ERR(wdev)) {
614 mwifiex_dbg(adapter, ERROR,
615 "cannot create AP interface\n");
616 rtnl_unlock();
617 goto err_add_intf;
618 }
619 }
620
621 if (driver_mode & MWIFIEX_DRIVER_MODE_P2P) {
622 wdev = mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d", NET_NAME_ENUM,
623 NL80211_IFTYPE_P2P_CLIENT, NULL);
624 if (IS_ERR(wdev)) {
625 mwifiex_dbg(adapter, ERROR,
626 "cannot create p2p client interface\n");
627 rtnl_unlock();
628 goto err_add_intf;
629 }
630 }
631 rtnl_unlock();
632
633 mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
634 mwifiex_dbg(adapter, MSG, "driver_version = %s\n", fmt);
635 goto done;
636
637err_add_intf:
638 vfree(adapter->chan_stats);
639err_init_chan_scan:
640 wiphy_unregister(adapter->wiphy);
641 wiphy_free(adapter->wiphy);
642err_init_fw:
643 if (adapter->if_ops.disable_int)
644 adapter->if_ops.disable_int(adapter);
645err_dnld_fw:
646 mwifiex_dbg(adapter, ERROR,
647 "info: %s: unregister device\n", __func__);
648 if (adapter->if_ops.unregister_dev)
649 adapter->if_ops.unregister_dev(adapter);
650
651 adapter->surprise_removed = true;
652 mwifiex_terminate_workqueue(adapter);
653
654 if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) {
655 pr_debug("info: %s: shutdown mwifiex\n", __func__);
656 mwifiex_shutdown_drv(adapter);
657 mwifiex_free_cmd_buffers(adapter);
658 }
659
660 init_failed = true;
661done:
662 if (adapter->cal_data) {
663 release_firmware(adapter->cal_data);
664 adapter->cal_data = NULL;
665 }
666 if (adapter->firmware) {
667 release_firmware(adapter->firmware);
668 adapter->firmware = NULL;
669 }
670 if (init_failed) {
671 if (adapter->irq_wakeup >= 0)
672 device_init_wakeup(adapter->dev, false);
673 mwifiex_free_adapter(adapter);
674 }
675
676 complete_all(fw_done);
677
678 return init_failed ? -EIO : 0;
679}
680
681static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
682{
683 _mwifiex_fw_dpc(firmware, context);
684}
685
686
687
688
689
690static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter,
691 bool req_fw_nowait)
692{
693 int ret;
694
695
696
697
698 if (mfg_mode) {
699 if (strlcpy(adapter->fw_name, MFG_FIRMWARE,
700 sizeof(adapter->fw_name)) >=
701 sizeof(adapter->fw_name)) {
702 pr_err("%s: fw_name too long!\n", __func__);
703 return -1;
704 }
705 }
706
707 if (req_fw_nowait) {
708 ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name,
709 adapter->dev, GFP_KERNEL, adapter,
710 mwifiex_fw_dpc);
711 } else {
712 ret = request_firmware(&adapter->firmware,
713 adapter->fw_name,
714 adapter->dev);
715 }
716
717 if (ret < 0)
718 mwifiex_dbg(adapter, ERROR, "request_firmware%s error %d\n",
719 req_fw_nowait ? "_nowait" : "", ret);
720 return ret;
721}
722
723
724
725
726
727
728static int
729mwifiex_open(struct net_device *dev)
730{
731 netif_carrier_off(dev);
732
733 return 0;
734}
735
736
737
738
739static int
740mwifiex_close(struct net_device *dev)
741{
742 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
743
744 if (priv->scan_request) {
745 struct cfg80211_scan_info info = {
746 .aborted = true,
747 };
748
749 mwifiex_dbg(priv->adapter, INFO,
750 "aborting scan on ndo_stop\n");
751 cfg80211_scan_done(priv->scan_request, &info);
752 priv->scan_request = NULL;
753 priv->scan_aborting = true;
754 }
755
756 if (priv->sched_scanning) {
757 mwifiex_dbg(priv->adapter, INFO,
758 "aborting bgscan on ndo_stop\n");
759 mwifiex_stop_bg_scan(priv);
760 cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0);
761 }
762
763 return 0;
764}
765
766static bool
767mwifiex_bypass_tx_queue(struct mwifiex_private *priv,
768 struct sk_buff *skb)
769{
770 struct ethhdr *eth_hdr = (struct ethhdr *)skb->data;
771
772 if (ntohs(eth_hdr->h_proto) == ETH_P_PAE ||
773 mwifiex_is_skb_mgmt_frame(skb) ||
774 (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA &&
775 ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
776 (ntohs(eth_hdr->h_proto) == ETH_P_TDLS))) {
777 mwifiex_dbg(priv->adapter, DATA,
778 "bypass txqueue; eth type %#x, mgmt %d\n",
779 ntohs(eth_hdr->h_proto),
780 mwifiex_is_skb_mgmt_frame(skb));
781 return true;
782 }
783
784 return false;
785}
786
787
788
789int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb)
790{
791 struct netdev_queue *txq;
792 int index = mwifiex_1d_to_wmm_queue[skb->priority];
793
794 if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) {
795 txq = netdev_get_tx_queue(priv->netdev, index);
796 if (!netif_tx_queue_stopped(txq)) {
797 netif_tx_stop_queue(txq);
798 mwifiex_dbg(priv->adapter, DATA,
799 "stop queue: %d\n", index);
800 }
801 }
802
803 if (mwifiex_bypass_tx_queue(priv, skb)) {
804 atomic_inc(&priv->adapter->tx_pending);
805 atomic_inc(&priv->adapter->bypass_tx_pending);
806 mwifiex_wmm_add_buf_bypass_txqueue(priv, skb);
807 } else {
808 atomic_inc(&priv->adapter->tx_pending);
809 mwifiex_wmm_add_buf_txqueue(priv, skb);
810 }
811
812 mwifiex_queue_main_work(priv->adapter);
813
814 return 0;
815}
816
817struct sk_buff *
818mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv,
819 struct sk_buff *skb, u8 flag, u64 *cookie)
820{
821 struct sk_buff *orig_skb = skb;
822 struct mwifiex_txinfo *tx_info, *orig_tx_info;
823
824 skb = skb_clone(skb, GFP_ATOMIC);
825 if (skb) {
826 unsigned long flags;
827 int id;
828
829 spin_lock_irqsave(&priv->ack_status_lock, flags);
830 id = idr_alloc(&priv->ack_status_frames, orig_skb,
831 1, 0x10, GFP_ATOMIC);
832 spin_unlock_irqrestore(&priv->ack_status_lock, flags);
833
834 if (id >= 0) {
835 tx_info = MWIFIEX_SKB_TXCB(skb);
836 tx_info->ack_frame_id = id;
837 tx_info->flags |= flag;
838 orig_tx_info = MWIFIEX_SKB_TXCB(orig_skb);
839 orig_tx_info->ack_frame_id = id;
840 orig_tx_info->flags |= flag;
841
842 if (flag == MWIFIEX_BUF_FLAG_ACTION_TX_STATUS && cookie)
843 orig_tx_info->cookie = *cookie;
844
845 } else if (skb_shared(skb)) {
846 kfree_skb(orig_skb);
847 } else {
848 kfree_skb(skb);
849 skb = orig_skb;
850 }
851 } else {
852
853 skb = orig_skb;
854 }
855
856 return skb;
857}
858
859
860
861
862static int
863mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
864{
865 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
866 struct sk_buff *new_skb;
867 struct mwifiex_txinfo *tx_info;
868 bool multicast;
869
870 mwifiex_dbg(priv->adapter, DATA,
871 "data: %lu BSS(%d-%d): Data <= kernel\n",
872 jiffies, priv->bss_type, priv->bss_num);
873
874 if (priv->adapter->surprise_removed) {
875 kfree_skb(skb);
876 priv->stats.tx_dropped++;
877 return 0;
878 }
879 if (!skb->len || (skb->len > ETH_FRAME_LEN)) {
880 mwifiex_dbg(priv->adapter, ERROR,
881 "Tx: bad skb len %d\n", skb->len);
882 kfree_skb(skb);
883 priv->stats.tx_dropped++;
884 return 0;
885 }
886 if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) {
887 mwifiex_dbg(priv->adapter, DATA,
888 "data: Tx: insufficient skb headroom %d\n",
889 skb_headroom(skb));
890
891 new_skb =
892 skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
893 if (unlikely(!new_skb)) {
894 mwifiex_dbg(priv->adapter, ERROR,
895 "Tx: cannot alloca new_skb\n");
896 kfree_skb(skb);
897 priv->stats.tx_dropped++;
898 return 0;
899 }
900 kfree_skb(skb);
901 skb = new_skb;
902 mwifiex_dbg(priv->adapter, INFO,
903 "info: new skb headroomd %d\n",
904 skb_headroom(skb));
905 }
906
907 tx_info = MWIFIEX_SKB_TXCB(skb);
908 memset(tx_info, 0, sizeof(*tx_info));
909 tx_info->bss_num = priv->bss_num;
910 tx_info->bss_type = priv->bss_type;
911 tx_info->pkt_len = skb->len;
912
913 multicast = is_multicast_ether_addr(skb->data);
914
915 if (unlikely(!multicast && skb->sk &&
916 skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS &&
917 priv->adapter->fw_api_ver == MWIFIEX_FW_V15))
918 skb = mwifiex_clone_skb_for_tx_status(priv,
919 skb,
920 MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS, NULL);
921
922
923
924
925
926
927
928
929 __net_timestamp(skb);
930
931 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
932 priv->bss_type == MWIFIEX_BSS_TYPE_STA &&
933 !ether_addr_equal_unaligned(priv->cfg_bssid, skb->data)) {
934 if (priv->adapter->auto_tdls && priv->check_tdls_tx)
935 mwifiex_tdls_check_tx(priv, skb);
936 }
937
938 mwifiex_queue_tx_pkt(priv, skb);
939
940 return 0;
941}
942
943int mwifiex_set_mac_address(struct mwifiex_private *priv,
944 struct net_device *dev)
945{
946 int ret;
947 u64 mac_addr;
948
949 if (priv->bss_type != MWIFIEX_BSS_TYPE_P2P)
950 goto done;
951
952 mac_addr = ether_addr_to_u64(priv->curr_addr);
953 mac_addr |= BIT_ULL(MWIFIEX_MAC_LOCAL_ADMIN_BIT);
954 u64_to_ether_addr(mac_addr, priv->curr_addr);
955
956
957 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS,
958 HostCmd_ACT_GEN_SET, 0, NULL, true);
959
960 if (ret) {
961 mwifiex_dbg(priv->adapter, ERROR,
962 "set mac address failed: ret=%d\n", ret);
963 return ret;
964 }
965
966done:
967 memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN);
968 return 0;
969}
970
971
972
973static int
974mwifiex_ndo_set_mac_address(struct net_device *dev, void *addr)
975{
976 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
977 struct sockaddr *hw_addr = addr;
978
979 memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN);
980 return mwifiex_set_mac_address(priv, dev);
981}
982
983
984
985
986static void mwifiex_set_multicast_list(struct net_device *dev)
987{
988 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
989 struct mwifiex_multicast_list mcast_list;
990
991 if (dev->flags & IFF_PROMISC) {
992 mcast_list.mode = MWIFIEX_PROMISC_MODE;
993 } else if (dev->flags & IFF_ALLMULTI ||
994 netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) {
995 mcast_list.mode = MWIFIEX_ALL_MULTI_MODE;
996 } else {
997 mcast_list.mode = MWIFIEX_MULTICAST_MODE;
998 mcast_list.num_multicast_addr =
999 mwifiex_copy_mcast_addr(&mcast_list, dev);
1000 }
1001 mwifiex_request_set_multicast_list(priv, &mcast_list);
1002}
1003
1004
1005
1006
1007static void
1008mwifiex_tx_timeout(struct net_device *dev)
1009{
1010 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1011
1012 priv->num_tx_timeout++;
1013 priv->tx_timeout_cnt++;
1014 mwifiex_dbg(priv->adapter, ERROR,
1015 "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n",
1016 jiffies, priv->tx_timeout_cnt, priv->bss_type,
1017 priv->bss_num);
1018 mwifiex_set_trans_start(dev);
1019
1020 if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD &&
1021 priv->adapter->if_ops.card_reset) {
1022 mwifiex_dbg(priv->adapter, ERROR,
1023 "tx_timeout_cnt exceeds threshold.\t"
1024 "Triggering card reset!\n");
1025 priv->adapter->if_ops.card_reset(priv->adapter);
1026 }
1027}
1028
1029void mwifiex_multi_chan_resync(struct mwifiex_adapter *adapter)
1030{
1031 struct usb_card_rec *card = adapter->card;
1032 struct mwifiex_private *priv;
1033 u16 tx_buf_size;
1034 int i, ret;
1035
1036 card->mc_resync_flag = true;
1037 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
1038 if (atomic_read(&card->port[i].tx_data_urb_pending)) {
1039 mwifiex_dbg(adapter, WARN, "pending data urb in sys\n");
1040 return;
1041 }
1042 }
1043
1044 card->mc_resync_flag = false;
1045 tx_buf_size = 0xffff;
1046 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1047 ret = mwifiex_send_cmd(priv, HostCmd_CMD_RECONFIGURE_TX_BUFF,
1048 HostCmd_ACT_GEN_SET, 0, &tx_buf_size, false);
1049 if (ret)
1050 mwifiex_dbg(adapter, ERROR,
1051 "send reconfig tx buf size cmd err\n");
1052}
1053EXPORT_SYMBOL_GPL(mwifiex_multi_chan_resync);
1054
1055int mwifiex_drv_info_dump(struct mwifiex_adapter *adapter, void **drv_info)
1056{
1057 void *p;
1058 char drv_version[64];
1059 struct usb_card_rec *cardp;
1060 struct sdio_mmc_card *sdio_card;
1061 struct mwifiex_private *priv;
1062 int i, idx;
1063 struct netdev_queue *txq;
1064 struct mwifiex_debug_info *debug_info;
1065 void *drv_info_dump;
1066
1067 mwifiex_dbg(adapter, MSG, "===mwifiex driverinfo dump start===\n");
1068
1069
1070 drv_info_dump = vzalloc(MWIFIEX_DRV_INFO_SIZE_MAX);
1071
1072 if (!drv_info_dump)
1073 return 0;
1074
1075 p = (char *)(drv_info_dump);
1076 p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
1077
1078 mwifiex_drv_get_driver_version(adapter, drv_version,
1079 sizeof(drv_version) - 1);
1080 p += sprintf(p, "driver_version = %s\n", drv_version);
1081
1082 if (adapter->iface_type == MWIFIEX_USB) {
1083 cardp = (struct usb_card_rec *)adapter->card;
1084 p += sprintf(p, "tx_cmd_urb_pending = %d\n",
1085 atomic_read(&cardp->tx_cmd_urb_pending));
1086 p += sprintf(p, "tx_data_urb_pending_port_0 = %d\n",
1087 atomic_read(&cardp->port[0].tx_data_urb_pending));
1088 p += sprintf(p, "tx_data_urb_pending_port_1 = %d\n",
1089 atomic_read(&cardp->port[1].tx_data_urb_pending));
1090 p += sprintf(p, "rx_cmd_urb_pending = %d\n",
1091 atomic_read(&cardp->rx_cmd_urb_pending));
1092 p += sprintf(p, "rx_data_urb_pending = %d\n",
1093 atomic_read(&cardp->rx_data_urb_pending));
1094 }
1095
1096 p += sprintf(p, "tx_pending = %d\n",
1097 atomic_read(&adapter->tx_pending));
1098 p += sprintf(p, "rx_pending = %d\n",
1099 atomic_read(&adapter->rx_pending));
1100
1101 if (adapter->iface_type == MWIFIEX_SDIO) {
1102 sdio_card = (struct sdio_mmc_card *)adapter->card;
1103 p += sprintf(p, "\nmp_rd_bitmap=0x%x curr_rd_port=0x%x\n",
1104 sdio_card->mp_rd_bitmap, sdio_card->curr_rd_port);
1105 p += sprintf(p, "mp_wr_bitmap=0x%x curr_wr_port=0x%x\n",
1106 sdio_card->mp_wr_bitmap, sdio_card->curr_wr_port);
1107 }
1108
1109 for (i = 0; i < adapter->priv_num; i++) {
1110 if (!adapter->priv[i] || !adapter->priv[i]->netdev)
1111 continue;
1112 priv = adapter->priv[i];
1113 p += sprintf(p, "\n[interface : \"%s\"]\n",
1114 priv->netdev->name);
1115 p += sprintf(p, "wmm_tx_pending[0] = %d\n",
1116 atomic_read(&priv->wmm_tx_pending[0]));
1117 p += sprintf(p, "wmm_tx_pending[1] = %d\n",
1118 atomic_read(&priv->wmm_tx_pending[1]));
1119 p += sprintf(p, "wmm_tx_pending[2] = %d\n",
1120 atomic_read(&priv->wmm_tx_pending[2]));
1121 p += sprintf(p, "wmm_tx_pending[3] = %d\n",
1122 atomic_read(&priv->wmm_tx_pending[3]));
1123 p += sprintf(p, "media_state=\"%s\"\n", !priv->media_connected ?
1124 "Disconnected" : "Connected");
1125 p += sprintf(p, "carrier %s\n", (netif_carrier_ok(priv->netdev)
1126 ? "on" : "off"));
1127 for (idx = 0; idx < priv->netdev->num_tx_queues; idx++) {
1128 txq = netdev_get_tx_queue(priv->netdev, idx);
1129 p += sprintf(p, "tx queue %d:%s ", idx,
1130 netif_tx_queue_stopped(txq) ?
1131 "stopped" : "started");
1132 }
1133 p += sprintf(p, "\n%s: num_tx_timeout = %d\n",
1134 priv->netdev->name, priv->num_tx_timeout);
1135 }
1136
1137 if (adapter->iface_type == MWIFIEX_SDIO ||
1138 adapter->iface_type == MWIFIEX_PCIE) {
1139 p += sprintf(p, "\n=== %s register dump===\n",
1140 adapter->iface_type == MWIFIEX_SDIO ?
1141 "SDIO" : "PCIE");
1142 if (adapter->if_ops.reg_dump)
1143 p += adapter->if_ops.reg_dump(adapter, p);
1144 }
1145 p += sprintf(p, "\n=== more debug information\n");
1146 debug_info = kzalloc(sizeof(*debug_info), GFP_KERNEL);
1147 if (debug_info) {
1148 for (i = 0; i < adapter->priv_num; i++) {
1149 if (!adapter->priv[i] || !adapter->priv[i]->netdev)
1150 continue;
1151 priv = adapter->priv[i];
1152 mwifiex_get_debug_info(priv, debug_info);
1153 p += mwifiex_debug_info_to_buffer(priv, p, debug_info);
1154 break;
1155 }
1156 kfree(debug_info);
1157 }
1158
1159 mwifiex_dbg(adapter, MSG, "===mwifiex driverinfo dump end===\n");
1160 *drv_info = drv_info_dump;
1161 return p - drv_info_dump;
1162}
1163EXPORT_SYMBOL_GPL(mwifiex_drv_info_dump);
1164
1165void mwifiex_upload_device_dump(struct mwifiex_adapter *adapter, void *drv_info,
1166 int drv_info_size)
1167{
1168 u8 idx, *dump_data, *fw_dump_ptr;
1169 u32 dump_len;
1170
1171 dump_len = (strlen("========Start dump driverinfo========\n") +
1172 drv_info_size +
1173 strlen("\n========End dump========\n"));
1174
1175 for (idx = 0; idx < adapter->num_mem_types; idx++) {
1176 struct memory_type_mapping *entry =
1177 &adapter->mem_type_mapping_tbl[idx];
1178
1179 if (entry->mem_ptr) {
1180 dump_len += (strlen("========Start dump ") +
1181 strlen(entry->mem_name) +
1182 strlen("========\n") +
1183 (entry->mem_size + 1) +
1184 strlen("\n========End dump========\n"));
1185 }
1186 }
1187
1188 dump_data = vzalloc(dump_len + 1);
1189 if (!dump_data)
1190 goto done;
1191
1192 fw_dump_ptr = dump_data;
1193
1194
1195
1196
1197 mwifiex_dbg(adapter, MSG,
1198 "== mwifiex dump information to /sys/class/devcoredump start");
1199
1200 strcpy(fw_dump_ptr, "========Start dump driverinfo========\n");
1201 fw_dump_ptr += strlen("========Start dump driverinfo========\n");
1202 memcpy(fw_dump_ptr, drv_info, drv_info_size);
1203 fw_dump_ptr += drv_info_size;
1204 strcpy(fw_dump_ptr, "\n========End dump========\n");
1205 fw_dump_ptr += strlen("\n========End dump========\n");
1206
1207 for (idx = 0; idx < adapter->num_mem_types; idx++) {
1208 struct memory_type_mapping *entry =
1209 &adapter->mem_type_mapping_tbl[idx];
1210
1211 if (entry->mem_ptr) {
1212 strcpy(fw_dump_ptr, "========Start dump ");
1213 fw_dump_ptr += strlen("========Start dump ");
1214
1215 strcpy(fw_dump_ptr, entry->mem_name);
1216 fw_dump_ptr += strlen(entry->mem_name);
1217
1218 strcpy(fw_dump_ptr, "========\n");
1219 fw_dump_ptr += strlen("========\n");
1220
1221 memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size);
1222 fw_dump_ptr += entry->mem_size;
1223
1224 strcpy(fw_dump_ptr, "\n========End dump========\n");
1225 fw_dump_ptr += strlen("\n========End dump========\n");
1226 }
1227 }
1228
1229
1230
1231
1232 dev_coredumpv(adapter->dev, dump_data, dump_len, GFP_KERNEL);
1233 mwifiex_dbg(adapter, MSG,
1234 "== mwifiex dump information to /sys/class/devcoredump end");
1235
1236done:
1237 for (idx = 0; idx < adapter->num_mem_types; idx++) {
1238 struct memory_type_mapping *entry =
1239 &adapter->mem_type_mapping_tbl[idx];
1240
1241 vfree(entry->mem_ptr);
1242 entry->mem_ptr = NULL;
1243 entry->mem_size = 0;
1244 }
1245
1246 vfree(drv_info);
1247}
1248EXPORT_SYMBOL_GPL(mwifiex_upload_device_dump);
1249
1250
1251
1252
1253static struct net_device_stats *mwifiex_get_stats(struct net_device *dev)
1254{
1255 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1256
1257 return &priv->stats;
1258}
1259
1260static u16
1261mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb,
1262 void *accel_priv, select_queue_fallback_t fallback)
1263{
1264 skb->priority = cfg80211_classify8021d(skb, NULL);
1265 return mwifiex_1d_to_wmm_queue[skb->priority];
1266}
1267
1268
1269static const struct net_device_ops mwifiex_netdev_ops = {
1270 .ndo_open = mwifiex_open,
1271 .ndo_stop = mwifiex_close,
1272 .ndo_start_xmit = mwifiex_hard_start_xmit,
1273 .ndo_set_mac_address = mwifiex_ndo_set_mac_address,
1274 .ndo_validate_addr = eth_validate_addr,
1275 .ndo_tx_timeout = mwifiex_tx_timeout,
1276 .ndo_get_stats = mwifiex_get_stats,
1277 .ndo_set_rx_mode = mwifiex_set_multicast_list,
1278 .ndo_select_queue = mwifiex_netdev_select_wmm_queue,
1279};
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301void mwifiex_init_priv_params(struct mwifiex_private *priv,
1302 struct net_device *dev)
1303{
1304 dev->netdev_ops = &mwifiex_netdev_ops;
1305 dev->needs_free_netdev = true;
1306
1307 priv->current_key_index = 0;
1308 priv->media_connected = false;
1309 memset(priv->mgmt_ie, 0,
1310 sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX);
1311 priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK;
1312 priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK;
1313 priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK;
1314 priv->gen_idx = MWIFIEX_AUTO_IDX_MASK;
1315 priv->num_tx_timeout = 0;
1316 ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr);
1317
1318 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
1319 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1320 priv->hist_data = kmalloc(sizeof(*priv->hist_data), GFP_KERNEL);
1321 if (priv->hist_data)
1322 mwifiex_hist_data_reset(priv);
1323 }
1324}
1325
1326
1327
1328
1329int is_command_pending(struct mwifiex_adapter *adapter)
1330{
1331 unsigned long flags;
1332 int is_cmd_pend_q_empty;
1333
1334 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
1335 is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q);
1336 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
1337
1338 return !is_cmd_pend_q_empty;
1339}
1340
1341
1342
1343
1344
1345
1346static void mwifiex_rx_work_queue(struct work_struct *work)
1347{
1348 struct mwifiex_adapter *adapter =
1349 container_of(work, struct mwifiex_adapter, rx_work);
1350
1351 if (adapter->surprise_removed)
1352 return;
1353 mwifiex_process_rx(adapter);
1354}
1355
1356
1357
1358
1359
1360
1361
1362static void mwifiex_main_work_queue(struct work_struct *work)
1363{
1364 struct mwifiex_adapter *adapter =
1365 container_of(work, struct mwifiex_adapter, main_work);
1366
1367 if (adapter->surprise_removed)
1368 return;
1369 mwifiex_main_process(adapter);
1370}
1371
1372
1373static void mwifiex_uninit_sw(struct mwifiex_adapter *adapter)
1374{
1375 struct mwifiex_private *priv;
1376 int i;
1377
1378
1379
1380
1381 if (adapter->if_ops.disable_int)
1382 adapter->if_ops.disable_int(adapter);
1383
1384 adapter->surprise_removed = true;
1385 mwifiex_terminate_workqueue(adapter);
1386 adapter->int_status = 0;
1387
1388
1389 for (i = 0; i < adapter->priv_num; i++) {
1390 priv = adapter->priv[i];
1391 if (priv && priv->netdev) {
1392 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
1393 if (netif_carrier_ok(priv->netdev))
1394 netif_carrier_off(priv->netdev);
1395 netif_device_detach(priv->netdev);
1396 }
1397 }
1398
1399 mwifiex_dbg(adapter, CMD, "cmd: calling mwifiex_shutdown_drv...\n");
1400 mwifiex_shutdown_drv(adapter);
1401 mwifiex_dbg(adapter, CMD, "cmd: mwifiex_shutdown_drv done\n");
1402
1403 if (atomic_read(&adapter->rx_pending) ||
1404 atomic_read(&adapter->tx_pending) ||
1405 atomic_read(&adapter->cmd_pending)) {
1406 mwifiex_dbg(adapter, ERROR,
1407 "rx_pending=%d, tx_pending=%d,\t"
1408 "cmd_pending=%d\n",
1409 atomic_read(&adapter->rx_pending),
1410 atomic_read(&adapter->tx_pending),
1411 atomic_read(&adapter->cmd_pending));
1412 }
1413
1414 for (i = 0; i < adapter->priv_num; i++) {
1415 priv = adapter->priv[i];
1416 if (!priv)
1417 continue;
1418 rtnl_lock();
1419 if (priv->netdev &&
1420 priv->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED)
1421 mwifiex_del_virtual_intf(adapter->wiphy, &priv->wdev);
1422 rtnl_unlock();
1423 }
1424
1425 wiphy_unregister(adapter->wiphy);
1426 wiphy_free(adapter->wiphy);
1427 adapter->wiphy = NULL;
1428
1429 vfree(adapter->chan_stats);
1430 mwifiex_free_cmd_buffers(adapter);
1431}
1432
1433
1434
1435
1436int mwifiex_shutdown_sw(struct mwifiex_adapter *adapter)
1437{
1438 struct mwifiex_private *priv;
1439
1440 if (!adapter)
1441 return 0;
1442
1443 wait_for_completion(adapter->fw_done);
1444
1445 reinit_completion(adapter->fw_done);
1446
1447 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1448 mwifiex_deauthenticate(priv, NULL);
1449
1450 mwifiex_uninit_sw(adapter);
1451
1452 if (adapter->if_ops.down_dev)
1453 adapter->if_ops.down_dev(adapter);
1454
1455 return 0;
1456}
1457EXPORT_SYMBOL_GPL(mwifiex_shutdown_sw);
1458
1459
1460
1461
1462int
1463mwifiex_reinit_sw(struct mwifiex_adapter *adapter)
1464{
1465 int ret;
1466
1467 mwifiex_init_lock_list(adapter);
1468 if (adapter->if_ops.up_dev)
1469 adapter->if_ops.up_dev(adapter);
1470
1471 adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
1472 adapter->surprise_removed = false;
1473 init_waitqueue_head(&adapter->init_wait_q);
1474 adapter->is_suspended = false;
1475 adapter->hs_activated = false;
1476 adapter->is_cmd_timedout = 0;
1477 init_waitqueue_head(&adapter->hs_activate_wait_q);
1478 init_waitqueue_head(&adapter->cmd_wait_q.wait);
1479 adapter->cmd_wait_q.status = 0;
1480 adapter->scan_wait_q_woken = false;
1481
1482 if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB)
1483 adapter->rx_work_enabled = true;
1484
1485 adapter->workqueue =
1486 alloc_workqueue("MWIFIEX_WORK_QUEUE",
1487 WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1);
1488 if (!adapter->workqueue)
1489 goto err_kmalloc;
1490
1491 INIT_WORK(&adapter->main_work, mwifiex_main_work_queue);
1492
1493 if (adapter->rx_work_enabled) {
1494 adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE",
1495 WQ_HIGHPRI |
1496 WQ_MEM_RECLAIM |
1497 WQ_UNBOUND, 1);
1498 if (!adapter->rx_workqueue)
1499 goto err_kmalloc;
1500 INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue);
1501 }
1502
1503
1504
1505
1506
1507 mwifiex_dbg(adapter, INFO, "%s, mwifiex_init_hw_fw()...\n", __func__);
1508
1509 if (mwifiex_init_hw_fw(adapter, false)) {
1510 mwifiex_dbg(adapter, ERROR,
1511 "%s: firmware init failed\n", __func__);
1512 goto err_init_fw;
1513 }
1514
1515
1516 ret = _mwifiex_fw_dpc(adapter->firmware, adapter);
1517 if (ret) {
1518 pr_err("Failed to bring up adapter: %d\n", ret);
1519 return ret;
1520 }
1521 mwifiex_dbg(adapter, INFO, "%s, successful\n", __func__);
1522
1523 return 0;
1524
1525err_init_fw:
1526 mwifiex_dbg(adapter, ERROR, "info: %s: unregister device\n", __func__);
1527 if (adapter->if_ops.unregister_dev)
1528 adapter->if_ops.unregister_dev(adapter);
1529
1530err_kmalloc:
1531 adapter->surprise_removed = true;
1532 mwifiex_terminate_workqueue(adapter);
1533 if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) {
1534 mwifiex_dbg(adapter, ERROR,
1535 "info: %s: shutdown mwifiex\n", __func__);
1536 mwifiex_shutdown_drv(adapter);
1537 mwifiex_free_cmd_buffers(adapter);
1538 }
1539
1540 complete_all(adapter->fw_done);
1541 mwifiex_dbg(adapter, INFO, "%s, error\n", __func__);
1542
1543 return -1;
1544}
1545EXPORT_SYMBOL_GPL(mwifiex_reinit_sw);
1546
1547static irqreturn_t mwifiex_irq_wakeup_handler(int irq, void *priv)
1548{
1549 struct mwifiex_adapter *adapter = priv;
1550
1551 dev_dbg(adapter->dev, "%s: wake by wifi", __func__);
1552 adapter->wake_by_wifi = true;
1553 disable_irq_nosync(irq);
1554
1555
1556 pm_wakeup_event(adapter->dev, 0);
1557 pm_system_wakeup();
1558
1559 return IRQ_HANDLED;
1560}
1561
1562static void mwifiex_probe_of(struct mwifiex_adapter *adapter)
1563{
1564 int ret;
1565 struct device *dev = adapter->dev;
1566
1567 if (!dev->of_node)
1568 goto err_exit;
1569
1570 adapter->dt_node = dev->of_node;
1571 adapter->irq_wakeup = irq_of_parse_and_map(adapter->dt_node, 0);
1572 if (!adapter->irq_wakeup) {
1573 dev_dbg(dev, "fail to parse irq_wakeup from device tree\n");
1574 goto err_exit;
1575 }
1576
1577 ret = devm_request_irq(dev, adapter->irq_wakeup,
1578 mwifiex_irq_wakeup_handler, IRQF_TRIGGER_LOW,
1579 "wifi_wake", adapter);
1580 if (ret) {
1581 dev_err(dev, "Failed to request irq_wakeup %d (%d)\n",
1582 adapter->irq_wakeup, ret);
1583 goto err_exit;
1584 }
1585
1586 disable_irq(adapter->irq_wakeup);
1587 if (device_init_wakeup(dev, true)) {
1588 dev_err(dev, "fail to init wakeup for mwifiex\n");
1589 goto err_exit;
1590 }
1591 return;
1592
1593err_exit:
1594 adapter->irq_wakeup = -1;
1595}
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610int
1611mwifiex_add_card(void *card, struct completion *fw_done,
1612 struct mwifiex_if_ops *if_ops, u8 iface_type,
1613 struct device *dev)
1614{
1615 struct mwifiex_adapter *adapter;
1616
1617 if (mwifiex_register(card, dev, if_ops, (void **)&adapter)) {
1618 pr_err("%s: software init failed\n", __func__);
1619 goto err_init_sw;
1620 }
1621
1622 mwifiex_probe_of(adapter);
1623
1624 adapter->iface_type = iface_type;
1625 adapter->fw_done = fw_done;
1626
1627 adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
1628 adapter->surprise_removed = false;
1629 init_waitqueue_head(&adapter->init_wait_q);
1630 adapter->is_suspended = false;
1631 adapter->hs_activated = false;
1632 init_waitqueue_head(&adapter->hs_activate_wait_q);
1633 init_waitqueue_head(&adapter->cmd_wait_q.wait);
1634 adapter->cmd_wait_q.status = 0;
1635 adapter->scan_wait_q_woken = false;
1636
1637 if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB)
1638 adapter->rx_work_enabled = true;
1639
1640 adapter->workqueue =
1641 alloc_workqueue("MWIFIEX_WORK_QUEUE",
1642 WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1);
1643 if (!adapter->workqueue)
1644 goto err_kmalloc;
1645
1646 INIT_WORK(&adapter->main_work, mwifiex_main_work_queue);
1647
1648 if (adapter->rx_work_enabled) {
1649 adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE",
1650 WQ_HIGHPRI |
1651 WQ_MEM_RECLAIM |
1652 WQ_UNBOUND, 1);
1653 if (!adapter->rx_workqueue)
1654 goto err_kmalloc;
1655
1656 INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue);
1657 }
1658
1659
1660
1661 if (adapter->if_ops.register_dev(adapter)) {
1662 pr_err("%s: failed to register mwifiex device\n", __func__);
1663 goto err_registerdev;
1664 }
1665
1666 if (mwifiex_init_hw_fw(adapter, true)) {
1667 pr_err("%s: firmware init failed\n", __func__);
1668 goto err_init_fw;
1669 }
1670
1671 return 0;
1672
1673err_init_fw:
1674 pr_debug("info: %s: unregister device\n", __func__);
1675 if (adapter->if_ops.unregister_dev)
1676 adapter->if_ops.unregister_dev(adapter);
1677err_registerdev:
1678 adapter->surprise_removed = true;
1679 mwifiex_terminate_workqueue(adapter);
1680 if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) {
1681 pr_debug("info: %s: shutdown mwifiex\n", __func__);
1682 mwifiex_shutdown_drv(adapter);
1683 mwifiex_free_cmd_buffers(adapter);
1684 }
1685err_kmalloc:
1686 if (adapter->irq_wakeup >= 0)
1687 device_init_wakeup(adapter->dev, false);
1688 mwifiex_free_adapter(adapter);
1689
1690err_init_sw:
1691
1692 return -1;
1693}
1694EXPORT_SYMBOL_GPL(mwifiex_add_card);
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707int mwifiex_remove_card(struct mwifiex_adapter *adapter)
1708{
1709 if (!adapter)
1710 return 0;
1711
1712 mwifiex_uninit_sw(adapter);
1713
1714 if (adapter->irq_wakeup >= 0)
1715 device_init_wakeup(adapter->dev, false);
1716
1717
1718 mwifiex_dbg(adapter, INFO,
1719 "info: unregister device\n");
1720 if (adapter->if_ops.unregister_dev)
1721 adapter->if_ops.unregister_dev(adapter);
1722
1723 mwifiex_dbg(adapter, INFO,
1724 "info: free adapter\n");
1725 mwifiex_free_adapter(adapter);
1726
1727 return 0;
1728}
1729EXPORT_SYMBOL_GPL(mwifiex_remove_card);
1730
1731void _mwifiex_dbg(const struct mwifiex_adapter *adapter, int mask,
1732 const char *fmt, ...)
1733{
1734 struct va_format vaf;
1735 va_list args;
1736
1737 if (!(adapter->debug_mask & mask))
1738 return;
1739
1740 va_start(args, fmt);
1741
1742 vaf.fmt = fmt;
1743 vaf.va = &args;
1744
1745 if (adapter->dev)
1746 dev_info(adapter->dev, "%pV", &vaf);
1747 else
1748 pr_info("%pV", &vaf);
1749
1750 va_end(args);
1751}
1752EXPORT_SYMBOL_GPL(_mwifiex_dbg);
1753
1754
1755
1756
1757
1758
1759static int
1760mwifiex_init_module(void)
1761{
1762#ifdef CONFIG_DEBUG_FS
1763 mwifiex_debugfs_init();
1764#endif
1765 return 0;
1766}
1767
1768
1769
1770
1771
1772
1773static void
1774mwifiex_cleanup_module(void)
1775{
1776#ifdef CONFIG_DEBUG_FS
1777 mwifiex_debugfs_remove();
1778#endif
1779}
1780
1781module_init(mwifiex_init_module);
1782module_exit(mwifiex_cleanup_module);
1783
1784MODULE_AUTHOR("Marvell International Ltd.");
1785MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION);
1786MODULE_VERSION(VERSION);
1787MODULE_LICENSE("GPL v2");
1788