1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * nxpwifi: HW/FW initialization
4 *
5 * Copyright 2011-2024 NXP
6 */
7
8 #include "cfg.h"
9 #include "util.h"
10 #include "fw.h"
11 #include "main.h"
12 #include "cmdevt.h"
13 #include "wmm.h"
14 #include "11n.h"
15
16 /* Add a BSS priority node to the adapter list. */
nxpwifi_add_bss_prio_tbl(struct nxpwifi_private * priv)17 static int nxpwifi_add_bss_prio_tbl(struct nxpwifi_private *priv)
18 {
19 struct nxpwifi_adapter *adapter = priv->adapter;
20 struct nxpwifi_bss_prio_node *bss_prio;
21 struct nxpwifi_bss_prio_tbl *tbl = adapter->bss_prio_tbl;
22
23 bss_prio = kzalloc_obj(*bss_prio, GFP_KERNEL);
24 if (!bss_prio)
25 return -ENOMEM;
26
27 bss_prio->priv = priv;
28 INIT_LIST_HEAD(&bss_prio->list);
29
30 spin_lock_bh(&tbl[priv->bss_priority].bss_prio_lock);
31 list_add_tail(&bss_prio->list, &tbl[priv->bss_priority].bss_prio_head);
32 spin_unlock_bh(&tbl[priv->bss_priority].bss_prio_lock);
33
34 return 0;
35 }
36
wakeup_timer_fn(struct timer_list * t)37 static void wakeup_timer_fn(struct timer_list *t)
38 {
39 struct nxpwifi_adapter *adapter = timer_container_of(adapter, t, wakeup_timer);
40
41 nxpwifi_dbg(adapter, ERROR, "Firmware wakeup failed\n");
42 adapter->hw_status = NXPWIFI_HW_STATUS_RESET;
43 nxpwifi_cancel_all_pending_cmd(adapter);
44
45 if (adapter->if_ops.card_reset)
46 adapter->if_ops.card_reset(adapter);
47 }
48
49 /* Initialize priv defaults and lists. */
nxpwifi_init_priv(struct nxpwifi_private * priv)50 int nxpwifi_init_priv(struct nxpwifi_private *priv)
51 {
52 u32 i;
53
54 priv->media_connected = false;
55 eth_broadcast_addr(priv->curr_addr);
56 priv->port_open = false;
57 priv->usb_port = NXPWIFI_USB_EP_DATA;
58 priv->pkt_tx_ctrl = 0;
59 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
60 priv->data_rate = 0; /* Initially indicate the rate as auto */
61 priv->is_data_rate_auto = true;
62 priv->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR;
63 priv->data_avg_factor = DEFAULT_DATA_AVG_FACTOR;
64
65 priv->auth_flag = 0;
66 priv->auth_alg = WLAN_AUTH_NONE;
67
68 priv->sec_info.wep_enabled = 0;
69 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
70 priv->sec_info.encryption_mode = 0;
71 for (i = 0; i < ARRAY_SIZE(priv->wep_key); i++)
72 memset(&priv->wep_key[i], 0, sizeof(struct nxpwifi_wep_key));
73 priv->wep_key_curr_index = 0;
74 priv->curr_pkt_filter = HOST_ACT_MAC_DYNAMIC_BW_ENABLE |
75 HOST_ACT_MAC_RX_ON | HOST_ACT_MAC_TX_ON |
76 HOST_ACT_MAC_ETHERNETII_ENABLE;
77
78 priv->beacon_period = 100; /* beacon interval */
79 priv->attempted_bss_desc = NULL;
80 memset(&priv->curr_bss_params, 0, sizeof(priv->curr_bss_params));
81 priv->listen_interval = NXPWIFI_DEFAULT_LISTEN_INTERVAL;
82
83 memset(&priv->prev_ssid, 0, sizeof(priv->prev_ssid));
84 memset(&priv->prev_bssid, 0, sizeof(priv->prev_bssid));
85 memset(&priv->assoc_rsp_buf, 0, sizeof(priv->assoc_rsp_buf));
86 priv->assoc_rsp_size = 0;
87 priv->atim_window = 0;
88 priv->tx_power_level = 0;
89 priv->max_tx_power_level = 0;
90 priv->min_tx_power_level = 0;
91 priv->tx_ant = 0;
92 priv->rx_ant = 0;
93 priv->tx_rate = 0;
94 priv->rxpd_htinfo = 0;
95 priv->rxpd_rate = 0;
96 priv->rate_bitmap = 0;
97 priv->data_rssi_last = 0;
98 priv->data_rssi_avg = 0;
99 priv->data_nf_avg = 0;
100 priv->data_nf_last = 0;
101 priv->bcn_rssi_last = 0;
102 priv->bcn_rssi_avg = 0;
103 priv->bcn_nf_avg = 0;
104 priv->bcn_nf_last = 0;
105 memset(&priv->wpa_ie, 0, sizeof(priv->wpa_ie));
106 memset(&priv->aes_key, 0, sizeof(priv->aes_key));
107 priv->wpa_ie_len = 0;
108 priv->wpa_is_gtk_set = false;
109
110 memset(&priv->assoc_tlv_buf, 0, sizeof(priv->assoc_tlv_buf));
111 priv->assoc_tlv_buf_len = 0;
112 memset(&priv->wps, 0, sizeof(priv->wps));
113 memset(&priv->gen_ie_buf, 0, sizeof(priv->gen_ie_buf));
114 priv->gen_ie_buf_len = 0;
115 memset(priv->vs_ie, 0, sizeof(priv->vs_ie));
116
117 priv->wmm_required = true;
118 priv->wmm_enabled = false;
119 priv->wmm_qosinfo = 0;
120 priv->curr_bcn_buf = NULL;
121 priv->curr_bcn_size = 0;
122 priv->wps_ie = NULL;
123 priv->wps_ie_len = 0;
124 priv->ap_11n_enabled = 0;
125 memset(&priv->roc_cfg, 0, sizeof(priv->roc_cfg));
126
127 priv->scan_block = false;
128
129 priv->csa_chan = 0;
130 priv->csa_expire_time = 0;
131 priv->del_list_idx = 0;
132 priv->hs2_enabled = false;
133 nxpwifi_wmm_init_tos_to_tid_inv(priv);
134
135 nxpwifi_init_11h_params(priv);
136
137 return nxpwifi_add_bss_prio_tbl(priv);
138 }
139
140 /* Allocate command buffer and sleep-confirm skb. */
nxpwifi_allocate_adapter(struct nxpwifi_adapter * adapter)141 static int nxpwifi_allocate_adapter(struct nxpwifi_adapter *adapter)
142 {
143 int ret;
144
145 /* Allocate command buffer */
146 ret = nxpwifi_alloc_cmd_buffer(adapter);
147 if (ret) {
148 nxpwifi_dbg(adapter, ERROR,
149 "%s: failed to alloc cmd buffer\n",
150 __func__);
151 return ret;
152 }
153
154 adapter->sleep_cfm =
155 dev_alloc_skb(sizeof(struct nxpwifi_opt_sleep_confirm)
156 + INTF_HEADER_LEN);
157
158 if (!adapter->sleep_cfm) {
159 nxpwifi_dbg(adapter, ERROR,
160 "%s: failed to alloc sleep cfm\t"
161 " cmd buffer\n", __func__);
162 return -ENOMEM;
163 }
164 skb_reserve(adapter->sleep_cfm, INTF_HEADER_LEN);
165
166 return 0;
167 }
168
169 /* Initialize adapter defaults and WMM parameters. */
nxpwifi_init_adapter(struct nxpwifi_adapter * adapter)170 static void nxpwifi_init_adapter(struct nxpwifi_adapter *adapter)
171 {
172 struct nxpwifi_opt_sleep_confirm *sleep_cfm_buf = NULL;
173
174 skb_put(adapter->sleep_cfm, sizeof(struct nxpwifi_opt_sleep_confirm));
175
176 adapter->cmd_sent = false;
177 adapter->data_sent = true;
178
179 adapter->intf_hdr_len = INTF_HEADER_LEN;
180
181 adapter->cmd_resp_received = false;
182 adapter->event_received = false;
183 adapter->data_received = false;
184 adapter->assoc_resp_received = false;
185 adapter->priv_link_lost = NULL;
186 adapter->host_mlme_link_lost = false;
187
188 clear_bit(NXPWIFI_SURPRISE_REMOVED, &adapter->work_flags);
189
190 adapter->hw_status = NXPWIFI_HW_STATUS_INITIALIZING;
191
192 adapter->ps_mode = NXPWIFI_802_11_POWER_MODE_CAM;
193 adapter->ps_state = PS_STATE_AWAKE;
194 adapter->need_to_wakeup = false;
195
196 adapter->scan_mode = HOST_BSS_MODE_ANY;
197 adapter->specific_scan_time = NXPWIFI_SPECIFIC_SCAN_CHAN_TIME;
198 adapter->active_scan_time = NXPWIFI_ACTIVE_SCAN_CHAN_TIME;
199 adapter->passive_scan_time = NXPWIFI_PASSIVE_SCAN_CHAN_TIME;
200 adapter->scan_chan_gap_time = NXPWIFI_DEF_SCAN_CHAN_GAP_TIME;
201
202 adapter->scan_probes = 1;
203
204 adapter->multiple_dtim = 1;
205
206 /* default value in firmware will be used */
207 adapter->local_listen_interval = 0;
208
209 adapter->is_deep_sleep = false;
210
211 adapter->delay_null_pkt = false;
212 adapter->delay_to_ps = 1000;
213 adapter->enhanced_ps_mode = PS_MODE_AUTO;
214
215 /* Disable NULL Pkg generation by default */
216 adapter->gen_null_pkt = false;
217 /* Disable pps/uapsd mode by default */
218 adapter->pps_uapsd_mode = false;
219 adapter->pm_wakeup_card_req = false;
220
221 adapter->pm_wakeup_fw_try = false;
222
223 adapter->curr_tx_buf_size = NXPWIFI_TX_DATA_BUF_SIZE_2K;
224
225 clear_bit(NXPWIFI_IS_HS_CONFIGURED, &adapter->work_flags);
226 adapter->hs_cfg.conditions = cpu_to_le32(HS_CFG_COND_DEF);
227 adapter->hs_cfg.gpio = HS_CFG_GPIO_DEF;
228 adapter->hs_cfg.gap = HS_CFG_GAP_DEF;
229 adapter->hs_activated = false;
230
231 memset(adapter->event_body, 0, sizeof(adapter->event_body));
232 adapter->hw_dot_11n_dev_cap = 0;
233 adapter->hw_dev_mcs_support = 0;
234 adapter->sec_chan_offset = 0;
235
236 nxpwifi_wmm_init(adapter);
237 atomic_set(&adapter->tx_hw_pending, 0);
238
239 sleep_cfm_buf = (struct nxpwifi_opt_sleep_confirm *)
240 adapter->sleep_cfm->data;
241 memset(sleep_cfm_buf, 0, adapter->sleep_cfm->len);
242 sleep_cfm_buf->command = cpu_to_le16(HOST_CMD_802_11_PS_MODE_ENH);
243 sleep_cfm_buf->size = cpu_to_le16(adapter->sleep_cfm->len);
244 sleep_cfm_buf->result = 0;
245 sleep_cfm_buf->action = cpu_to_le16(SLEEP_CONFIRM);
246 sleep_cfm_buf->resp_ctrl = cpu_to_le16(RESP_NEEDED);
247
248 memset(&adapter->sleep_period, 0, sizeof(adapter->sleep_period));
249 adapter->tx_lock_flag = false;
250 adapter->null_pkt_interval = 0;
251 adapter->fw_bands = 0;
252 adapter->fw_release_number = 0;
253 adapter->fw_cap_info = 0;
254 memset(&adapter->upld_buf, 0, sizeof(adapter->upld_buf));
255 adapter->event_cause = 0;
256 adapter->region_code = 0;
257 adapter->bcn_miss_time_out = DEFAULT_BCN_MISS_TIMEOUT;
258 memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter));
259 adapter->arp_filter_size = 0;
260 adapter->max_mgmt_ie_index = MAX_MGMT_IE_INDEX;
261 adapter->key_api_major_ver = 0;
262 adapter->key_api_minor_ver = 0;
263 eth_broadcast_addr(adapter->perm_addr);
264 adapter->iface_limit.sta_intf = NXPWIFI_MAX_STA_NUM;
265 adapter->iface_limit.uap_intf = NXPWIFI_MAX_UAP_NUM;
266 adapter->active_scan_triggered = false;
267 timer_setup(&adapter->wakeup_timer, wakeup_timer_fn, 0);
268 adapter->devdump_len = 0;
269 memset(&adapter->vdll_ctrl, 0, sizeof(adapter->vdll_ctrl));
270 adapter->vdll_ctrl.skb = dev_alloc_skb(NXPWIFI_SIZE_OF_CMD_BUFFER);
271 atomic_set(&adapter->iface_changing, 0);
272 }
273
274 /* Update trans_start for each Tx queue. */
nxpwifi_set_trans_start(struct net_device * dev)275 void nxpwifi_set_trans_start(struct net_device *dev)
276 {
277 int i;
278
279 for (i = 0; i < dev->num_tx_queues; i++)
280 txq_trans_cond_update(netdev_get_tx_queue(dev, i));
281
282 netif_trans_update(dev);
283 }
284
285 /* Wake all netdev Tx queues. */
nxpwifi_wake_up_net_dev_queue(struct net_device * netdev,struct nxpwifi_adapter * adapter)286 void nxpwifi_wake_up_net_dev_queue(struct net_device *netdev,
287 struct nxpwifi_adapter *adapter)
288 {
289 spin_lock_bh(&adapter->queue_lock);
290 netif_tx_wake_all_queues(netdev);
291 spin_unlock_bh(&adapter->queue_lock);
292 }
293
294 /* Stop all netdev Tx queues. */
nxpwifi_stop_net_dev_queue(struct net_device * netdev,struct nxpwifi_adapter * adapter)295 void nxpwifi_stop_net_dev_queue(struct net_device *netdev,
296 struct nxpwifi_adapter *adapter)
297 {
298 spin_lock_bh(&adapter->queue_lock);
299 netif_tx_stop_all_queues(netdev);
300 spin_unlock_bh(&adapter->queue_lock);
301 }
302
303 /* Invalidate list heads. */
nxpwifi_invalidate_lists(struct nxpwifi_adapter * adapter)304 static void nxpwifi_invalidate_lists(struct nxpwifi_adapter *adapter)
305 {
306 struct nxpwifi_private *priv;
307 s32 i, j;
308
309 list_del(&adapter->cmd_free_q);
310 list_del(&adapter->cmd_pending_q);
311 list_del(&adapter->scan_pending_q);
312
313 for (i = 0; i < adapter->priv_num; i++)
314 list_del(&adapter->bss_prio_tbl[i].bss_prio_head);
315
316 for (i = 0; i < adapter->priv_num; i++) {
317 priv = adapter->priv[i];
318 for (j = 0; j < MAX_NUM_TID; ++j) {
319 list_del(&priv->wmm.tid_tbl_ptr[j].ra_list);
320 list_del(&priv->tx_ba_stream_tbl_ptr[j]);
321 list_del(&priv->rx_reorder_tbl_ptr[j]);
322 }
323 list_del(&priv->sta_list);
324 }
325 }
326
327 /* Cancel pending work, stop timers, and free adapter buffers. */
328 static void
nxpwifi_adapter_cleanup(struct nxpwifi_adapter * adapter)329 nxpwifi_adapter_cleanup(struct nxpwifi_adapter *adapter)
330 {
331 timer_delete(&adapter->wakeup_timer);
332 nxpwifi_cancel_all_pending_cmd(adapter);
333 wake_up_interruptible(&adapter->cmd_wait_q.wait);
334 wake_up_interruptible(&adapter->hs_activate_wait_q);
335 if (adapter->vdll_ctrl.vdll_mem) {
336 vfree(adapter->vdll_ctrl.vdll_mem);
337 adapter->vdll_ctrl.vdll_mem = NULL;
338 adapter->vdll_ctrl.vdll_len = 0;
339 }
340 if (adapter->vdll_ctrl.skb) {
341 dev_kfree_skb_any(adapter->vdll_ctrl.skb);
342 adapter->vdll_ctrl.skb = NULL;
343 }
344 }
345
nxpwifi_free_cmd_buffers(struct nxpwifi_adapter * adapter)346 void nxpwifi_free_cmd_buffers(struct nxpwifi_adapter *adapter)
347 {
348 nxpwifi_invalidate_lists(adapter);
349
350 /* Free command buffer */
351 nxpwifi_dbg(adapter, INFO, "info: free cmd buffer\n");
352 nxpwifi_free_cmd_buffer(adapter);
353
354 if (adapter->sleep_cfm)
355 dev_kfree_skb_any(adapter->sleep_cfm);
356 }
357
358 /* Initialize locks and list heads. */
nxpwifi_init_lock_list(struct nxpwifi_adapter * adapter)359 void nxpwifi_init_lock_list(struct nxpwifi_adapter *adapter)
360 {
361 struct nxpwifi_private *priv;
362 s32 i, j;
363
364 spin_lock_init(&adapter->int_lock);
365 spin_lock_init(&adapter->nxpwifi_cmd_lock);
366 spin_lock_init(&adapter->queue_lock);
367 for (i = 0; i < adapter->priv_num; i++) {
368 priv = adapter->priv[i];
369 spin_lock_init(&priv->wmm.ra_list_spinlock);
370 spin_lock_init(&priv->curr_bcn_buf_lock);
371 spin_lock_init(&priv->sta_list_spinlock);
372 }
373
374 /* Initialize cmd_free_q */
375 INIT_LIST_HEAD(&adapter->cmd_free_q);
376 /* Initialize cmd_pending_q */
377 INIT_LIST_HEAD(&adapter->cmd_pending_q);
378 /* Initialize scan_pending_q */
379 INIT_LIST_HEAD(&adapter->scan_pending_q);
380
381 spin_lock_init(&adapter->cmd_free_q_lock);
382 spin_lock_init(&adapter->cmd_pending_q_lock);
383 spin_lock_init(&adapter->scan_pending_q_lock);
384
385 skb_queue_head_init(&adapter->rx_mlme_q);
386 skb_queue_head_init(&adapter->rx_data_q);
387 skb_queue_head_init(&adapter->tx_data_q);
388
389 for (i = 0; i < adapter->priv_num; ++i) {
390 INIT_LIST_HEAD(&adapter->bss_prio_tbl[i].bss_prio_head);
391 spin_lock_init(&adapter->bss_prio_tbl[i].bss_prio_lock);
392 }
393
394 for (i = 0; i < adapter->priv_num; i++) {
395 priv = adapter->priv[i];
396 for (j = 0; j < MAX_NUM_TID; ++j) {
397 INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[j].ra_list);
398 INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr[j]);
399 INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr[j]);
400 spin_lock_init(&priv->tx_ba_stream_tbl_lock[j]);
401 spin_lock_init(&priv->rx_reorder_tbl_lock[j]);
402 }
403 INIT_LIST_HEAD(&priv->sta_list);
404 skb_queue_head_init(&priv->bypass_txq);
405
406 spin_lock_init(&priv->ack_status_lock);
407 xa_init_flags(&priv->ack_status_frames, XA_FLAGS_ALLOC);
408 }
409 }
410
411 /* Init firmware: alloc resources, init adapter/privs, send STA init. */
nxpwifi_init_fw(struct nxpwifi_adapter * adapter)412 int nxpwifi_init_fw(struct nxpwifi_adapter *adapter)
413 {
414 int ret;
415 struct nxpwifi_private *priv;
416 u8 i;
417 bool first_sta = true;
418
419 adapter->hw_status = NXPWIFI_HW_STATUS_INITIALIZING;
420
421 /* Allocate memory for member of adapter structure */
422 ret = nxpwifi_allocate_adapter(adapter);
423 if (ret)
424 return ret;
425
426 /* Initialize adapter structure */
427 nxpwifi_init_adapter(adapter);
428
429 for (i = 0; i < adapter->priv_num; i++) {
430 priv = adapter->priv[i];
431
432 /* Initialize private structure */
433 ret = nxpwifi_init_priv(priv);
434 if (ret)
435 return ret;
436 }
437
438 for (i = 0; i < adapter->priv_num; i++) {
439 ret = nxpwifi_sta_init_cmd(adapter->priv[i],
440 first_sta, true);
441 if (ret)
442 return ret;
443
444 first_sta = false;
445 }
446 spin_lock_bh(&adapter->cmd_pending_q_lock);
447 WARN_ON(!list_empty(&adapter->cmd_pending_q));
448 spin_unlock_bh(&adapter->cmd_pending_q_lock);
449 adapter->hw_status = NXPWIFI_HW_STATUS_READY;
450
451 return 0;
452 }
453
454 /* Remove all BSS priority nodes for this priv. */
nxpwifi_delete_bss_prio_tbl(struct nxpwifi_private * priv)455 static void nxpwifi_delete_bss_prio_tbl(struct nxpwifi_private *priv)
456 {
457 int i;
458 struct nxpwifi_adapter *adapter = priv->adapter;
459 struct nxpwifi_bss_prio_node *bssprio_node, *tmp_node;
460 struct list_head *head;
461 spinlock_t *lock; /* bss priority lock */
462
463 for (i = 0; i < adapter->priv_num; ++i) {
464 head = &adapter->bss_prio_tbl[i].bss_prio_head;
465 lock = &adapter->bss_prio_tbl[i].bss_prio_lock;
466 nxpwifi_dbg(adapter, INFO,
467 "info: delete BSS priority table,\t"
468 "bss_type = %d, bss_num = %d, i = %d,\t"
469 "head = %p\n",
470 priv->bss_type, priv->bss_num, i, head);
471
472 {
473 spin_lock_bh(lock);
474 list_for_each_entry_safe(bssprio_node, tmp_node, head,
475 list) {
476 if (bssprio_node->priv == priv) {
477 nxpwifi_dbg(adapter, INFO,
478 "info: Delete\t"
479 "node %p, next = %p\n",
480 bssprio_node, tmp_node);
481 list_del(&bssprio_node->list);
482 kfree(bssprio_node);
483 }
484 }
485 spin_unlock_bh(lock);
486 }
487 }
488 }
489
490 /* Free per-priv resources and BSS priority entries. */
nxpwifi_free_priv(struct nxpwifi_private * priv)491 void nxpwifi_free_priv(struct nxpwifi_private *priv)
492 {
493 nxpwifi_clean_txrx(priv);
494 nxpwifi_delete_bss_prio_tbl(priv);
495 nxpwifi_free_curr_bcn(priv);
496 }
497
498 /* Shutdown driver: stop work, drain queues, free resources. */
499 void
nxpwifi_shutdown_drv(struct nxpwifi_adapter * adapter)500 nxpwifi_shutdown_drv(struct nxpwifi_adapter *adapter)
501 {
502 struct nxpwifi_private *priv;
503 s32 i;
504 struct sk_buff *skb;
505
506 /* nxpwifi already shutdown */
507 if (adapter->hw_status == NXPWIFI_HW_STATUS_NOT_READY)
508 return;
509
510 /* cancel current command */
511 if (adapter->curr_cmd) {
512 nxpwifi_dbg(adapter, WARN,
513 "curr_cmd is still in processing\n");
514 timer_delete_sync(&adapter->cmd_timer);
515 nxpwifi_recycle_cmd_node(adapter, adapter->curr_cmd);
516 adapter->curr_cmd = NULL;
517 }
518
519 /* shut down nxpwifi */
520 nxpwifi_dbg(adapter, MSG,
521 "info: shutdown nxpwifi...\n");
522
523 /* Clean up Tx/Rx queues and delete BSS priority table */
524 for (i = 0; i < adapter->priv_num; i++) {
525 priv = adapter->priv[i];
526
527 nxpwifi_abort_cac(priv);
528 nxpwifi_free_priv(priv);
529 }
530
531 atomic_set(&adapter->tx_queued, 0);
532 while ((skb = skb_dequeue(&adapter->tx_data_q)))
533 nxpwifi_write_data_complete(adapter, skb, 0, 0);
534
535 while ((skb = skb_dequeue(&adapter->rx_mlme_q)))
536 dev_kfree_skb_any(skb);
537
538 while ((skb = skb_dequeue(&adapter->rx_data_q))) {
539 struct nxpwifi_rxinfo *rx_info = NXPWIFI_SKB_RXCB(skb);
540
541 atomic_dec(&adapter->rx_pending);
542 priv = adapter->priv[rx_info->bss_num];
543 if (priv)
544 priv->stats.rx_dropped++;
545
546 dev_kfree_skb_any(skb);
547 }
548
549 nxpwifi_adapter_cleanup(adapter);
550
551 adapter->hw_status = NXPWIFI_HW_STATUS_NOT_READY;
552 }
553
554 /* Download FW if needed; check winner and wait until ready. */
nxpwifi_dnld_fw(struct nxpwifi_adapter * adapter,struct nxpwifi_fw_image * pmfw)555 int nxpwifi_dnld_fw(struct nxpwifi_adapter *adapter,
556 struct nxpwifi_fw_image *pmfw)
557 {
558 int ret;
559 u32 poll_num = 1;
560
561 /* check if firmware is already running */
562 ret = adapter->if_ops.check_fw_status(adapter, poll_num);
563 if (!ret) {
564 nxpwifi_dbg(adapter, MSG,
565 "WLAN FW already running! Skip FW dnld\n");
566 return 0;
567 }
568
569 /* check if we are the winner for downloading FW */
570 if (adapter->if_ops.check_winner_status) {
571 adapter->winner = 0;
572 ret = adapter->if_ops.check_winner_status(adapter);
573
574 poll_num = MAX_FIRMWARE_POLL_TRIES;
575 if (ret) {
576 nxpwifi_dbg(adapter, MSG,
577 "WLAN read winner status failed!\n");
578 return ret;
579 }
580
581 if (!adapter->winner) {
582 nxpwifi_dbg(adapter, MSG,
583 "WLAN is not the winner! Skip FW dnld\n");
584 goto poll_fw;
585 }
586 }
587
588 if (pmfw) {
589 /* Download firmware with helper */
590 ret = adapter->if_ops.prog_fw(adapter, pmfw);
591 if (ret) {
592 nxpwifi_dbg(adapter, ERROR,
593 "prog_fw failed ret=%#x\n", ret);
594 return ret;
595 }
596 }
597
598 poll_fw:
599 /* Check if the firmware is downloaded successfully or not */
600 ret = adapter->if_ops.check_fw_status(adapter, poll_num);
601 if (ret)
602 nxpwifi_dbg(adapter, ERROR,
603 "FW failed to be active in time\n");
604
605 return ret;
606 }
607 EXPORT_SYMBOL_GPL(nxpwifi_dnld_fw);
608