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1/*
2 * Marvell Wireless LAN device driver: HW/FW Initialization
3 *
4 * Copyright (C) 2011, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
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
28/*
29 * This function adds a BSS priority table to the table list.
30 *
31 * The function allocates a new BSS priority table node and adds it to
32 * the end of BSS priority table list, kept in driver memory.
33 */
34static int mwifiex_add_bss_prio_tbl(struct mwifiex_private *priv)
35{
36 struct mwifiex_adapter *adapter = priv->adapter;
37 struct mwifiex_bss_prio_node *bss_prio;
38 unsigned long flags;
39
40 bss_prio = kzalloc(sizeof(struct mwifiex_bss_prio_node), GFP_KERNEL);
41 if (!bss_prio) {
42 dev_err(adapter->dev, "%s: failed to alloc bss_prio\n",
43 __func__);
44 return -ENOMEM;
45 }
46
47 bss_prio->priv = priv;
48 INIT_LIST_HEAD(&bss_prio->list);
49 if (!adapter->bss_prio_tbl[priv->bss_priority].bss_prio_cur)
50 adapter->bss_prio_tbl[priv->bss_priority].bss_prio_cur =
51 bss_prio;
52
53 spin_lock_irqsave(&adapter->bss_prio_tbl[priv->bss_priority]
54 .bss_prio_lock, flags);
55 list_add_tail(&bss_prio->list,
56 &adapter->bss_prio_tbl[priv->bss_priority]
57 .bss_prio_head);
58 spin_unlock_irqrestore(&adapter->bss_prio_tbl[priv->bss_priority]
59 .bss_prio_lock, flags);
60
61 return 0;
62}
63
64/*
65 * This function initializes the private structure and sets default
66 * values to the members.
67 *
68 * Additionally, it also initializes all the locks and sets up all the
69 * lists.
70 */
71static int mwifiex_init_priv(struct mwifiex_private *priv)
72{
73 u32 i;
74
75 priv->media_connected = false;
76 memset(priv->curr_addr, 0xff, ETH_ALEN);
77
78 priv->pkt_tx_ctrl = 0;
79 priv->bss_mode = NL80211_IFTYPE_STATION;
80 priv->data_rate = 0; /* Initially indicate the rate as auto */
81 priv->is_data_rate_auto = true;
82 priv->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR;
83 priv->data_avg_factor = DEFAULT_DATA_AVG_FACTOR;
84
85 priv->sec_info.wep_status = MWIFIEX_802_11_WEP_DISABLED;
86 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
87 priv->sec_info.encryption_mode = 0;
88 for (i = 0; i < ARRAY_SIZE(priv->wep_key); i++)
89 memset(&priv->wep_key[i], 0, sizeof(struct mwifiex_wep_key));
90 priv->wep_key_curr_index = 0;
91 priv->curr_pkt_filter = HostCmd_ACT_MAC_RX_ON | HostCmd_ACT_MAC_TX_ON |
92 HostCmd_ACT_MAC_ETHERNETII_ENABLE;
93
94 priv->beacon_period = 100; /* beacon interval */ ;
95 priv->attempted_bss_desc = NULL;
96 memset(&priv->curr_bss_params, 0, sizeof(priv->curr_bss_params));
97 priv->listen_interval = MWIFIEX_DEFAULT_LISTEN_INTERVAL;
98
99 memset(&priv->prev_ssid, 0, sizeof(priv->prev_ssid));
100 memset(&priv->prev_bssid, 0, sizeof(priv->prev_bssid));
101 memset(&priv->assoc_rsp_buf, 0, sizeof(priv->assoc_rsp_buf));
102 priv->assoc_rsp_size = 0;
103 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
104 priv->atim_window = 0;
105 priv->adhoc_state = ADHOC_IDLE;
106 priv->tx_power_level = 0;
107 priv->max_tx_power_level = 0;
108 priv->min_tx_power_level = 0;
109 priv->tx_rate = 0;
110 priv->rxpd_htinfo = 0;
111 priv->rxpd_rate = 0;
112 priv->rate_bitmap = 0;
113 priv->data_rssi_last = 0;
114 priv->data_rssi_avg = 0;
115 priv->data_nf_avg = 0;
116 priv->data_nf_last = 0;
117 priv->bcn_rssi_last = 0;
118 priv->bcn_rssi_avg = 0;
119 priv->bcn_nf_avg = 0;
120 priv->bcn_nf_last = 0;
121 memset(&priv->wpa_ie, 0, sizeof(priv->wpa_ie));
122 memset(&priv->aes_key, 0, sizeof(priv->aes_key));
123 priv->wpa_ie_len = 0;
124 priv->wpa_is_gtk_set = false;
125
126 memset(&priv->assoc_tlv_buf, 0, sizeof(priv->assoc_tlv_buf));
127 priv->assoc_tlv_buf_len = 0;
128 memset(&priv->wps, 0, sizeof(priv->wps));
129 memset(&priv->gen_ie_buf, 0, sizeof(priv->gen_ie_buf));
130 priv->gen_ie_buf_len = 0;
131 memset(priv->vs_ie, 0, sizeof(priv->vs_ie));
132
133 priv->wmm_required = true;
134 priv->wmm_enabled = false;
135 priv->wmm_qosinfo = 0;
136 priv->curr_bcn_buf = NULL;
137 priv->curr_bcn_size = 0;
138
139 priv->scan_block = false;
140
141 return mwifiex_add_bss_prio_tbl(priv);
142}
143
144/*
145 * This function allocates buffers for members of the adapter
146 * structure.
147 *
148 * The memory allocated includes scan table, command buffers, and
149 * sleep confirm command buffer. In addition, the queues are
150 * also initialized.
151 */
152static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter)
153{
154 int ret;
155 u32 buf_size;
156 struct mwifiex_bssdescriptor *temp_scan_table;
157
158 /* Allocate buffer to store the BSSID list */
159 buf_size = sizeof(struct mwifiex_bssdescriptor) * IW_MAX_AP;
160 temp_scan_table = kzalloc(buf_size, GFP_KERNEL);
161 if (!temp_scan_table) {
162 dev_err(adapter->dev, "%s: failed to alloc temp_scan_table\n",
163 __func__);
164 return -ENOMEM;
165 }
166
167 adapter->scan_table = temp_scan_table;
168
169 /* Allocate command buffer */
170 ret = mwifiex_alloc_cmd_buffer(adapter);
171 if (ret) {
172 dev_err(adapter->dev, "%s: failed to alloc cmd buffer\n",
173 __func__);
174 return -1;
175 }
176
177 adapter->sleep_cfm =
178 dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm)
179 + INTF_HEADER_LEN);
180
181 if (!adapter->sleep_cfm) {
182 dev_err(adapter->dev, "%s: failed to alloc sleep cfm"
183 " cmd buffer\n", __func__);
184 return -1;
185 }
186 skb_reserve(adapter->sleep_cfm, INTF_HEADER_LEN);
187
188 return 0;
189}
190
191/*
192 * This function initializes the adapter structure and sets default
193 * values to the members of adapter.
194 *
195 * This also initializes the WMM related parameters in the driver private
196 * structures.
197 */
198static void mwifiex_init_adapter(struct mwifiex_adapter *adapter)
199{
200 struct mwifiex_opt_sleep_confirm *sleep_cfm_buf = NULL;
201
202 skb_put(adapter->sleep_cfm, sizeof(struct mwifiex_opt_sleep_confirm));
203 sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm *)
204 (adapter->sleep_cfm->data);
205
206 adapter->cmd_sent = false;
207 adapter->data_sent = true;
208 adapter->cmd_resp_received = false;
209 adapter->event_received = false;
210 adapter->data_received = false;
211
212 adapter->surprise_removed = false;
213
214 adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
215
216 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
217 adapter->ps_state = PS_STATE_AWAKE;
218 adapter->need_to_wakeup = false;
219
220 adapter->scan_mode = HostCmd_BSS_MODE_ANY;
221 adapter->specific_scan_time = MWIFIEX_SPECIFIC_SCAN_CHAN_TIME;
222 adapter->active_scan_time = MWIFIEX_ACTIVE_SCAN_CHAN_TIME;
223 adapter->passive_scan_time = MWIFIEX_PASSIVE_SCAN_CHAN_TIME;
224
225 adapter->num_in_scan_table = 0;
226 memset(adapter->scan_table, 0,
227 (sizeof(struct mwifiex_bssdescriptor) * IW_MAX_AP));
228 adapter->scan_probes = 1;
229
230 memset(adapter->bcn_buf, 0, sizeof(adapter->bcn_buf));
231 adapter->bcn_buf_end = adapter->bcn_buf;
232
233 adapter->multiple_dtim = 1;
234
235 adapter->local_listen_interval = 0; /* default value in firmware
236 will be used */
237
238 adapter->is_deep_sleep = false;
239
240 adapter->delay_null_pkt = false;
241 adapter->delay_to_ps = 1000;
242 adapter->enhanced_ps_mode = PS_MODE_AUTO;
243
244 adapter->gen_null_pkt = false; /* Disable NULL Pkg generation by
245 default */
246 adapter->pps_uapsd_mode = false; /* Disable pps/uapsd mode by
247 default */
248 adapter->pm_wakeup_card_req = false;
249
250 adapter->pm_wakeup_fw_try = false;
251
252 adapter->max_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
253 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
254 adapter->curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
255
256 adapter->is_hs_configured = false;
257 adapter->hs_cfg.conditions = cpu_to_le32(HOST_SLEEP_CFG_COND_DEF);
258 adapter->hs_cfg.gpio = HOST_SLEEP_CFG_GPIO_DEF;
259 adapter->hs_cfg.gap = HOST_SLEEP_CFG_GAP_DEF;
260 adapter->hs_activated = false;
261
262 memset(adapter->event_body, 0, sizeof(adapter->event_body));
263 adapter->hw_dot_11n_dev_cap = 0;
264 adapter->hw_dev_mcs_support = 0;
265 adapter->chan_offset = 0;
266 adapter->adhoc_11n_enabled = false;
267
268 mwifiex_wmm_init(adapter);
269
270 if (adapter->sleep_cfm) {
271 memset(sleep_cfm_buf, 0, adapter->sleep_cfm->len);
272 sleep_cfm_buf->command =
273 cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH);
274 sleep_cfm_buf->size =
275 cpu_to_le16(adapter->sleep_cfm->len);
276 sleep_cfm_buf->result = 0;
277 sleep_cfm_buf->action = cpu_to_le16(SLEEP_CONFIRM);
278 sleep_cfm_buf->resp_ctrl = cpu_to_le16(RESP_NEEDED);
279 }
280 memset(&adapter->sleep_params, 0, sizeof(adapter->sleep_params));
281 memset(&adapter->sleep_period, 0, sizeof(adapter->sleep_period));
282 adapter->tx_lock_flag = false;
283 adapter->null_pkt_interval = 0;
284 adapter->fw_bands = 0;
285 adapter->config_bands = 0;
286 adapter->adhoc_start_band = 0;
287 adapter->scan_channels = NULL;
288 adapter->fw_release_number = 0;
289 adapter->fw_cap_info = 0;
290 memset(&adapter->upld_buf, 0, sizeof(adapter->upld_buf));
291 adapter->event_cause = 0;
292 adapter->region_code = 0;
293 adapter->bcn_miss_time_out = DEFAULT_BCN_MISS_TIMEOUT;
294 adapter->adhoc_awake_period = 0;
295 memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter));
296 adapter->arp_filter_size = 0;
297}
298
299/*
300 * This function frees the adapter structure.
301 *
302 * The freeing operation is done recursively, by canceling all
303 * pending commands, freeing the member buffers previously
304 * allocated (command buffers, scan table buffer, sleep confirm
305 * command buffer), stopping the timers and calling the cleanup
306 * routines for every interface, before the actual adapter
307 * structure is freed.
308 */
309static void
310mwifiex_free_adapter(struct mwifiex_adapter *adapter)
311{
312 if (!adapter) {
313 pr_err("%s: adapter is NULL\n", __func__);
314 return;
315 }
316
317 mwifiex_cancel_all_pending_cmd(adapter);
318
319 /* Free lock variables */
320 mwifiex_free_lock_list(adapter);
321
322 /* Free command buffer */
323 dev_dbg(adapter->dev, "info: free cmd buffer\n");
324 mwifiex_free_cmd_buffer(adapter);
325
326 del_timer(&adapter->cmd_timer);
327
328 dev_dbg(adapter->dev, "info: free scan table\n");
329 kfree(adapter->scan_table);
330 adapter->scan_table = NULL;
331
332 adapter->if_ops.cleanup_if(adapter);
333
334 dev_kfree_skb_any(adapter->sleep_cfm);
335}
336
337/*
338 * This function intializes the lock variables and
339 * the list heads.
340 */
341int mwifiex_init_lock_list(struct mwifiex_adapter *adapter)
342{
343 struct mwifiex_private *priv;
344 s32 i, j;
345
346 spin_lock_init(&adapter->mwifiex_lock);
347 spin_lock_init(&adapter->int_lock);
348 spin_lock_init(&adapter->main_proc_lock);
349 spin_lock_init(&adapter->mwifiex_cmd_lock);
350 for (i = 0; i < adapter->priv_num; i++) {
351 if (adapter->priv[i]) {
352 priv = adapter->priv[i];
353 spin_lock_init(&priv->rx_pkt_lock);
354 spin_lock_init(&priv->wmm.ra_list_spinlock);
355 spin_lock_init(&priv->curr_bcn_buf_lock);
356 }
357 }
358
359 /* Initialize cmd_free_q */
360 INIT_LIST_HEAD(&adapter->cmd_free_q);
361 /* Initialize cmd_pending_q */
362 INIT_LIST_HEAD(&adapter->cmd_pending_q);
363 /* Initialize scan_pending_q */
364 INIT_LIST_HEAD(&adapter->scan_pending_q);
365
366 spin_lock_init(&adapter->cmd_free_q_lock);
367 spin_lock_init(&adapter->cmd_pending_q_lock);
368 spin_lock_init(&adapter->scan_pending_q_lock);
369
370 for (i = 0; i < adapter->priv_num; ++i) {
371 INIT_LIST_HEAD(&adapter->bss_prio_tbl[i].bss_prio_head);
372 adapter->bss_prio_tbl[i].bss_prio_cur = NULL;
373 spin_lock_init(&adapter->bss_prio_tbl[i].bss_prio_lock);
374 }
375
376 for (i = 0; i < adapter->priv_num; i++) {
377 if (!adapter->priv[i])
378 continue;
379 priv = adapter->priv[i];
380 for (j = 0; j < MAX_NUM_TID; ++j) {
381 INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[j].ra_list);
382 spin_lock_init(&priv->wmm.tid_tbl_ptr[j].tid_tbl_lock);
383 }
384 INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr);
385 INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr);
386
387 spin_lock_init(&priv->tx_ba_stream_tbl_lock);
388 spin_lock_init(&priv->rx_reorder_tbl_lock);
389 }
390
391 return 0;
392}
393
394/*
395 * This function releases the lock variables and frees the locks and
396 * associated locks.
397 */
398void mwifiex_free_lock_list(struct mwifiex_adapter *adapter)
399{
400 struct mwifiex_private *priv;
401 s32 i, j;
402
403 /* Free lists */
404 list_del(&adapter->cmd_free_q);
405 list_del(&adapter->cmd_pending_q);
406 list_del(&adapter->scan_pending_q);
407
408 for (i = 0; i < adapter->priv_num; i++)
409 list_del(&adapter->bss_prio_tbl[i].bss_prio_head);
410
411 for (i = 0; i < adapter->priv_num; i++) {
412 if (adapter->priv[i]) {
413 priv = adapter->priv[i];
414 for (j = 0; j < MAX_NUM_TID; ++j)
415 list_del(&priv->wmm.tid_tbl_ptr[j].ra_list);
416 list_del(&priv->tx_ba_stream_tbl_ptr);
417 list_del(&priv->rx_reorder_tbl_ptr);
418 }
419 }
420}
421
422/*
423 * This function initializes the firmware.
424 *
425 * The following operations are performed sequentially -
426 * - Allocate adapter structure
427 * - Initialize the adapter structure
428 * - Initialize the private structure
429 * - Add BSS priority tables to the adapter structure
430 * - For each interface, send the init commands to firmware
431 * - Send the first command in command pending queue, if available
432 */
433int mwifiex_init_fw(struct mwifiex_adapter *adapter)
434{
435 int ret;
436 struct mwifiex_private *priv;
437 u8 i, first_sta = true;
438 int is_cmd_pend_q_empty;
439 unsigned long flags;
440
441 adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
442
443 /* Allocate memory for member of adapter structure */
444 ret = mwifiex_allocate_adapter(adapter);
445 if (ret)
446 return -1;
447
448 /* Initialize adapter structure */
449 mwifiex_init_adapter(adapter);
450
451 for (i = 0; i < adapter->priv_num; i++) {
452 if (adapter->priv[i]) {
453 priv = adapter->priv[i];
454
455 /* Initialize private structure */
456 ret = mwifiex_init_priv(priv);
457 if (ret)
458 return -1;
459 }
460 }
461 for (i = 0; i < adapter->priv_num; i++) {
462 if (adapter->priv[i]) {
463 ret = mwifiex_sta_init_cmd(adapter->priv[i], first_sta);
464 if (ret == -1)
465 return -1;
466
467 first_sta = false;
468 }
469 }
470
471 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
472 is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q);
473 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
474 if (!is_cmd_pend_q_empty) {
475 /* Send the first command in queue and return */
476 if (mwifiex_main_process(adapter) != -1)
477 ret = -EINPROGRESS;
478 } else {
479 adapter->hw_status = MWIFIEX_HW_STATUS_READY;
480 }
481
482 return ret;
483}
484
485/*
486 * This function deletes the BSS priority tables.
487 *
488 * The function traverses through all the allocated BSS priority nodes
489 * in every BSS priority table and frees them.
490 */
491static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private *priv)
492{
493 int i;
494 struct mwifiex_adapter *adapter = priv->adapter;
495 struct mwifiex_bss_prio_node *bssprio_node, *tmp_node, **cur;
496 struct list_head *head;
497 spinlock_t *lock;
498 unsigned long flags;
499
500 for (i = 0; i < adapter->priv_num; ++i) {
501 head = &adapter->bss_prio_tbl[i].bss_prio_head;
502 cur = &adapter->bss_prio_tbl[i].bss_prio_cur;
503 lock = &adapter->bss_prio_tbl[i].bss_prio_lock;
504 dev_dbg(adapter->dev, "info: delete BSS priority table,"
505 " index = %d, i = %d, head = %p, cur = %p\n",
506 priv->bss_index, i, head, *cur);
507 if (*cur) {
508 spin_lock_irqsave(lock, flags);
509 if (list_empty(head)) {
510 spin_unlock_irqrestore(lock, flags);
511 continue;
512 }
513 bssprio_node = list_first_entry(head,
514 struct mwifiex_bss_prio_node, list);
515 spin_unlock_irqrestore(lock, flags);
516
517 list_for_each_entry_safe(bssprio_node, tmp_node, head,
518 list) {
519 if (bssprio_node->priv == priv) {
520 dev_dbg(adapter->dev, "info: Delete "
521 "node %p, next = %p\n",
522 bssprio_node, tmp_node);
523 spin_lock_irqsave(lock, flags);
524 list_del(&bssprio_node->list);
525 spin_unlock_irqrestore(lock, flags);
526 kfree(bssprio_node);
527 }
528 }
529 *cur = (struct mwifiex_bss_prio_node *)head;
530 }
531 }
532}
533
534/*
535 * This function is used to shutdown the driver.
536 *
537 * The following operations are performed sequentially -
538 * - Check if already shut down
539 * - Make sure the main process has stopped
540 * - Clean up the Tx and Rx queues
541 * - Delete BSS priority tables
542 * - Free the adapter
543 * - Notify completion
544 */
545int
546mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
547{
548 int ret = -EINPROGRESS;
549 struct mwifiex_private *priv;
550 s32 i;
551 unsigned long flags;
552
553 /* mwifiex already shutdown */
554 if (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)
555 return 0;
556
557 adapter->hw_status = MWIFIEX_HW_STATUS_CLOSING;
558 /* wait for mwifiex_process to complete */
559 if (adapter->mwifiex_processing) {
560 dev_warn(adapter->dev, "main process is still running\n");
561 return ret;
562 }
563
564 /* shut down mwifiex */
565 dev_dbg(adapter->dev, "info: shutdown mwifiex...\n");
566
567 /* Clean up Tx/Rx queues and delete BSS priority table */
568 for (i = 0; i < adapter->priv_num; i++) {
569 if (adapter->priv[i]) {
570 priv = adapter->priv[i];
571
572 mwifiex_clean_txrx(priv);
573 mwifiex_delete_bss_prio_tbl(priv);
574 }
575 }
576
577 spin_lock_irqsave(&adapter->mwifiex_lock, flags);
578
579 /* Free adapter structure */
580 mwifiex_free_adapter(adapter);
581
582 spin_unlock_irqrestore(&adapter->mwifiex_lock, flags);
583
584 /* Notify completion */
585 ret = mwifiex_shutdown_fw_complete(adapter);
586
587 return ret;
588}
589
590/*
591 * This function downloads the firmware to the card.
592 *
593 * The actual download is preceded by two sanity checks -
594 * - Check if firmware is already running
595 * - Check if the interface is the winner to download the firmware
596 *
597 * ...and followed by another -
598 * - Check if the firmware is downloaded successfully
599 *
600 * After download is successfully completed, the host interrupts are enabled.
601 */
602int mwifiex_dnld_fw(struct mwifiex_adapter *adapter,
603 struct mwifiex_fw_image *pmfw)
604{
605 int ret, winner;
606 u32 poll_num = 1;
607
608 /* Check if firmware is already running */
609 ret = adapter->if_ops.check_fw_status(adapter, poll_num, &winner);
610 if (!ret) {
611 dev_notice(adapter->dev,
612 "WLAN FW already running! Skip FW download\n");
613 goto done;
614 }
615 poll_num = MAX_FIRMWARE_POLL_TRIES;
616
617 /* Check if we are the winner for downloading FW */
618 if (!winner) {
619 dev_notice(adapter->dev,
620 "Other interface already running!"
621 " Skip FW download\n");
622 poll_num = MAX_MULTI_INTERFACE_POLL_TRIES;
623 goto poll_fw;
624 }
625 if (pmfw) {
626 /* Download firmware with helper */
627 ret = adapter->if_ops.prog_fw(adapter, pmfw);
628 if (ret) {
629 dev_err(adapter->dev, "prog_fw failed ret=%#x\n", ret);
630 return ret;
631 }
632 }
633
634poll_fw:
635 /* Check if the firmware is downloaded successfully or not */
636 ret = adapter->if_ops.check_fw_status(adapter, poll_num, NULL);
637 if (ret) {
638 dev_err(adapter->dev, "FW failed to be active in time\n");
639 return -1;
640 }
641done:
642 /* re-enable host interrupt for mwifiex after fw dnld is successful */
643 adapter->if_ops.enable_int(adapter);
644 return ret;
645}