2 * Marvell Wireless LAN device driver: HW/FW Initialization
4 * Copyright (C) 2011-2014, Marvell International Ltd.
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.
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.
29 * This function adds a BSS priority table to the table list.
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.
34 static int mwifiex_add_bss_prio_tbl(struct mwifiex_private
*priv
)
36 struct mwifiex_adapter
*adapter
= priv
->adapter
;
37 struct mwifiex_bss_prio_node
*bss_prio
;
38 struct mwifiex_bss_prio_tbl
*tbl
= adapter
->bss_prio_tbl
;
41 bss_prio
= kzalloc(sizeof(struct mwifiex_bss_prio_node
), GFP_KERNEL
);
45 bss_prio
->priv
= priv
;
46 INIT_LIST_HEAD(&bss_prio
->list
);
48 spin_lock_irqsave(&tbl
[priv
->bss_priority
].bss_prio_lock
, flags
);
49 list_add_tail(&bss_prio
->list
, &tbl
[priv
->bss_priority
].bss_prio_head
);
50 spin_unlock_irqrestore(&tbl
[priv
->bss_priority
].bss_prio_lock
, flags
);
56 * This function initializes the private structure and sets default
57 * values to the members.
59 * Additionally, it also initializes all the locks and sets up all the
62 int mwifiex_init_priv(struct mwifiex_private
*priv
)
66 priv
->media_connected
= false;
67 memset(priv
->curr_addr
, 0xff, ETH_ALEN
);
69 priv
->pkt_tx_ctrl
= 0;
70 priv
->bss_mode
= NL80211_IFTYPE_UNSPECIFIED
;
71 priv
->data_rate
= 0; /* Initially indicate the rate as auto */
72 priv
->is_data_rate_auto
= true;
73 priv
->bcn_avg_factor
= DEFAULT_BCN_AVG_FACTOR
;
74 priv
->data_avg_factor
= DEFAULT_DATA_AVG_FACTOR
;
76 priv
->sec_info
.wep_enabled
= 0;
77 priv
->sec_info
.authentication_mode
= NL80211_AUTHTYPE_OPEN_SYSTEM
;
78 priv
->sec_info
.encryption_mode
= 0;
79 for (i
= 0; i
< ARRAY_SIZE(priv
->wep_key
); i
++)
80 memset(&priv
->wep_key
[i
], 0, sizeof(struct mwifiex_wep_key
));
81 priv
->wep_key_curr_index
= 0;
82 priv
->curr_pkt_filter
= HostCmd_ACT_MAC_RX_ON
| HostCmd_ACT_MAC_TX_ON
|
83 HostCmd_ACT_MAC_ETHERNETII_ENABLE
;
85 priv
->beacon_period
= 100; /* beacon interval */ ;
86 priv
->attempted_bss_desc
= NULL
;
87 memset(&priv
->curr_bss_params
, 0, sizeof(priv
->curr_bss_params
));
88 priv
->listen_interval
= MWIFIEX_DEFAULT_LISTEN_INTERVAL
;
90 memset(&priv
->prev_ssid
, 0, sizeof(priv
->prev_ssid
));
91 memset(&priv
->prev_bssid
, 0, sizeof(priv
->prev_bssid
));
92 memset(&priv
->assoc_rsp_buf
, 0, sizeof(priv
->assoc_rsp_buf
));
93 priv
->assoc_rsp_size
= 0;
94 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
95 priv
->atim_window
= 0;
96 priv
->adhoc_state
= ADHOC_IDLE
;
97 priv
->tx_power_level
= 0;
98 priv
->max_tx_power_level
= 0;
99 priv
->min_tx_power_level
= 0;
101 priv
->rxpd_htinfo
= 0;
103 priv
->rate_bitmap
= 0;
104 priv
->data_rssi_last
= 0;
105 priv
->data_rssi_avg
= 0;
106 priv
->data_nf_avg
= 0;
107 priv
->data_nf_last
= 0;
108 priv
->bcn_rssi_last
= 0;
109 priv
->bcn_rssi_avg
= 0;
110 priv
->bcn_nf_avg
= 0;
111 priv
->bcn_nf_last
= 0;
112 memset(&priv
->wpa_ie
, 0, sizeof(priv
->wpa_ie
));
113 memset(&priv
->aes_key
, 0, sizeof(priv
->aes_key
));
114 priv
->wpa_ie_len
= 0;
115 priv
->wpa_is_gtk_set
= false;
117 memset(&priv
->assoc_tlv_buf
, 0, sizeof(priv
->assoc_tlv_buf
));
118 priv
->assoc_tlv_buf_len
= 0;
119 memset(&priv
->wps
, 0, sizeof(priv
->wps
));
120 memset(&priv
->gen_ie_buf
, 0, sizeof(priv
->gen_ie_buf
));
121 priv
->gen_ie_buf_len
= 0;
122 memset(priv
->vs_ie
, 0, sizeof(priv
->vs_ie
));
124 priv
->wmm_required
= true;
125 priv
->wmm_enabled
= false;
126 priv
->wmm_qosinfo
= 0;
127 priv
->curr_bcn_buf
= NULL
;
128 priv
->curr_bcn_size
= 0;
130 priv
->wps_ie_len
= 0;
131 priv
->ap_11n_enabled
= 0;
132 memset(&priv
->roc_cfg
, 0, sizeof(priv
->roc_cfg
));
134 priv
->scan_block
= false;
137 priv
->csa_expire_time
= 0;
138 priv
->del_list_idx
= 0;
139 priv
->hs2_enabled
= false;
140 priv
->check_tdls_tx
= false;
141 memcpy(priv
->tos_to_tid_inv
, tos_to_tid_inv
, MAX_NUM_TID
);
143 return mwifiex_add_bss_prio_tbl(priv
);
147 * This function allocates buffers for members of the adapter
150 * The memory allocated includes scan table, command buffers, and
151 * sleep confirm command buffer. In addition, the queues are
154 static int mwifiex_allocate_adapter(struct mwifiex_adapter
*adapter
)
158 /* Allocate command buffer */
159 ret
= mwifiex_alloc_cmd_buffer(adapter
);
161 dev_err(adapter
->dev
, "%s: failed to alloc cmd buffer\n",
167 dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm
)
170 if (!adapter
->sleep_cfm
) {
171 dev_err(adapter
->dev
, "%s: failed to alloc sleep cfm"
172 " cmd buffer\n", __func__
);
175 skb_reserve(adapter
->sleep_cfm
, INTF_HEADER_LEN
);
181 * This function initializes the adapter structure and sets default
182 * values to the members of adapter.
184 * This also initializes the WMM related parameters in the driver private
187 static void mwifiex_init_adapter(struct mwifiex_adapter
*adapter
)
189 struct mwifiex_opt_sleep_confirm
*sleep_cfm_buf
= NULL
;
191 skb_put(adapter
->sleep_cfm
, sizeof(struct mwifiex_opt_sleep_confirm
));
193 adapter
->cmd_sent
= false;
195 if (adapter
->iface_type
== MWIFIEX_SDIO
)
196 adapter
->data_sent
= true;
198 adapter
->data_sent
= false;
200 adapter
->cmd_resp_received
= false;
201 adapter
->event_received
= false;
202 adapter
->data_received
= false;
204 adapter
->surprise_removed
= false;
206 adapter
->hw_status
= MWIFIEX_HW_STATUS_INITIALIZING
;
208 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_CAM
;
209 adapter
->ps_state
= PS_STATE_AWAKE
;
210 adapter
->need_to_wakeup
= false;
212 adapter
->scan_mode
= HostCmd_BSS_MODE_ANY
;
213 adapter
->specific_scan_time
= MWIFIEX_SPECIFIC_SCAN_CHAN_TIME
;
214 adapter
->active_scan_time
= MWIFIEX_ACTIVE_SCAN_CHAN_TIME
;
215 adapter
->passive_scan_time
= MWIFIEX_PASSIVE_SCAN_CHAN_TIME
;
216 adapter
->scan_chan_gap_time
= MWIFIEX_DEF_SCAN_CHAN_GAP_TIME
;
218 adapter
->scan_probes
= 1;
220 adapter
->multiple_dtim
= 1;
222 adapter
->local_listen_interval
= 0; /* default value in firmware
225 adapter
->is_deep_sleep
= false;
227 adapter
->delay_null_pkt
= false;
228 adapter
->delay_to_ps
= 1000;
229 adapter
->enhanced_ps_mode
= PS_MODE_AUTO
;
231 adapter
->gen_null_pkt
= false; /* Disable NULL Pkg generation by
233 adapter
->pps_uapsd_mode
= false; /* Disable pps/uapsd mode by
235 adapter
->pm_wakeup_card_req
= false;
237 adapter
->pm_wakeup_fw_try
= false;
239 adapter
->curr_tx_buf_size
= MWIFIEX_TX_DATA_BUF_SIZE_2K
;
241 adapter
->is_hs_configured
= false;
242 adapter
->hs_cfg
.conditions
= cpu_to_le32(HS_CFG_COND_DEF
);
243 adapter
->hs_cfg
.gpio
= HS_CFG_GPIO_DEF
;
244 adapter
->hs_cfg
.gap
= HS_CFG_GAP_DEF
;
245 adapter
->hs_activated
= false;
247 memset(adapter
->event_body
, 0, sizeof(adapter
->event_body
));
248 adapter
->hw_dot_11n_dev_cap
= 0;
249 adapter
->hw_dev_mcs_support
= 0;
250 adapter
->sec_chan_offset
= 0;
251 adapter
->adhoc_11n_enabled
= false;
253 mwifiex_wmm_init(adapter
);
255 if (adapter
->sleep_cfm
) {
256 sleep_cfm_buf
= (struct mwifiex_opt_sleep_confirm
*)
257 adapter
->sleep_cfm
->data
;
258 memset(sleep_cfm_buf
, 0, adapter
->sleep_cfm
->len
);
259 sleep_cfm_buf
->command
=
260 cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH
);
261 sleep_cfm_buf
->size
=
262 cpu_to_le16(adapter
->sleep_cfm
->len
);
263 sleep_cfm_buf
->result
= 0;
264 sleep_cfm_buf
->action
= cpu_to_le16(SLEEP_CONFIRM
);
265 sleep_cfm_buf
->resp_ctrl
= cpu_to_le16(RESP_NEEDED
);
267 memset(&adapter
->sleep_params
, 0, sizeof(adapter
->sleep_params
));
268 memset(&adapter
->sleep_period
, 0, sizeof(adapter
->sleep_period
));
269 adapter
->tx_lock_flag
= false;
270 adapter
->null_pkt_interval
= 0;
271 adapter
->fw_bands
= 0;
272 adapter
->config_bands
= 0;
273 adapter
->adhoc_start_band
= 0;
274 adapter
->scan_channels
= NULL
;
275 adapter
->fw_release_number
= 0;
276 adapter
->fw_cap_info
= 0;
277 memset(&adapter
->upld_buf
, 0, sizeof(adapter
->upld_buf
));
278 adapter
->event_cause
= 0;
279 adapter
->region_code
= 0;
280 adapter
->bcn_miss_time_out
= DEFAULT_BCN_MISS_TIMEOUT
;
281 adapter
->adhoc_awake_period
= 0;
282 memset(&adapter
->arp_filter
, 0, sizeof(adapter
->arp_filter
));
283 adapter
->arp_filter_size
= 0;
284 adapter
->max_mgmt_ie_index
= MAX_MGMT_IE_INDEX
;
285 adapter
->ext_scan
= true;
286 adapter
->key_api_major_ver
= 0;
287 adapter
->key_api_minor_ver
= 0;
291 * This function sets trans_start per tx_queue
293 void mwifiex_set_trans_start(struct net_device
*dev
)
297 for (i
= 0; i
< dev
->num_tx_queues
; i
++)
298 netdev_get_tx_queue(dev
, i
)->trans_start
= jiffies
;
300 dev
->trans_start
= jiffies
;
304 * This function wakes up all queues in net_device
306 void mwifiex_wake_up_net_dev_queue(struct net_device
*netdev
,
307 struct mwifiex_adapter
*adapter
)
309 unsigned long dev_queue_flags
;
312 spin_lock_irqsave(&adapter
->queue_lock
, dev_queue_flags
);
314 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
315 struct netdev_queue
*txq
= netdev_get_tx_queue(netdev
, i
);
317 if (netif_tx_queue_stopped(txq
))
318 netif_tx_wake_queue(txq
);
321 spin_unlock_irqrestore(&adapter
->queue_lock
, dev_queue_flags
);
325 * This function stops all queues in net_device
327 void mwifiex_stop_net_dev_queue(struct net_device
*netdev
,
328 struct mwifiex_adapter
*adapter
)
330 unsigned long dev_queue_flags
;
333 spin_lock_irqsave(&adapter
->queue_lock
, dev_queue_flags
);
335 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
336 struct netdev_queue
*txq
= netdev_get_tx_queue(netdev
, i
);
338 if (!netif_tx_queue_stopped(txq
))
339 netif_tx_stop_queue(txq
);
342 spin_unlock_irqrestore(&adapter
->queue_lock
, dev_queue_flags
);
346 * This function releases the lock variables and frees the locks and
349 static void mwifiex_free_lock_list(struct mwifiex_adapter
*adapter
)
351 struct mwifiex_private
*priv
;
355 list_del(&adapter
->cmd_free_q
);
356 list_del(&adapter
->cmd_pending_q
);
357 list_del(&adapter
->scan_pending_q
);
359 for (i
= 0; i
< adapter
->priv_num
; i
++)
360 list_del(&adapter
->bss_prio_tbl
[i
].bss_prio_head
);
362 for (i
= 0; i
< adapter
->priv_num
; i
++) {
363 if (adapter
->priv
[i
]) {
364 priv
= adapter
->priv
[i
];
365 for (j
= 0; j
< MAX_NUM_TID
; ++j
)
366 list_del(&priv
->wmm
.tid_tbl_ptr
[j
].ra_list
);
367 list_del(&priv
->tx_ba_stream_tbl_ptr
);
368 list_del(&priv
->rx_reorder_tbl_ptr
);
369 list_del(&priv
->sta_list
);
370 list_del(&priv
->auto_tdls_list
);
376 * This function performs cleanup for adapter structure.
378 * The cleanup is done recursively, by canceling all pending
379 * commands, freeing the member buffers previously allocated
380 * (command buffers, scan table buffer, sleep confirm command
381 * buffer), stopping the timers and calling the cleanup routines
382 * for every interface.
385 mwifiex_adapter_cleanup(struct mwifiex_adapter
*adapter
)
390 pr_err("%s: adapter is NULL\n", __func__
);
394 mwifiex_cancel_all_pending_cmd(adapter
);
396 /* Free lock variables */
397 mwifiex_free_lock_list(adapter
);
399 /* Free command buffer */
400 dev_dbg(adapter
->dev
, "info: free cmd buffer\n");
401 mwifiex_free_cmd_buffer(adapter
);
403 for (idx
= 0; idx
< adapter
->num_mem_types
; idx
++) {
404 struct memory_type_mapping
*entry
=
405 &adapter
->mem_type_mapping_tbl
[idx
];
407 if (entry
->mem_ptr
) {
408 vfree(entry
->mem_ptr
);
409 entry
->mem_ptr
= NULL
;
414 if (adapter
->drv_info_dump
) {
415 vfree(adapter
->drv_info_dump
);
416 adapter
->drv_info_size
= 0;
419 if (adapter
->sleep_cfm
)
420 dev_kfree_skb_any(adapter
->sleep_cfm
);
424 * This function intializes the lock variables and
427 int mwifiex_init_lock_list(struct mwifiex_adapter
*adapter
)
429 struct mwifiex_private
*priv
;
432 spin_lock_init(&adapter
->mwifiex_lock
);
433 spin_lock_init(&adapter
->int_lock
);
434 spin_lock_init(&adapter
->main_proc_lock
);
435 spin_lock_init(&adapter
->mwifiex_cmd_lock
);
436 spin_lock_init(&adapter
->queue_lock
);
437 for (i
= 0; i
< adapter
->priv_num
; i
++) {
438 if (adapter
->priv
[i
]) {
439 priv
= adapter
->priv
[i
];
440 spin_lock_init(&priv
->rx_pkt_lock
);
441 spin_lock_init(&priv
->wmm
.ra_list_spinlock
);
442 spin_lock_init(&priv
->curr_bcn_buf_lock
);
443 spin_lock_init(&priv
->sta_list_spinlock
);
444 spin_lock_init(&priv
->auto_tdls_lock
);
448 /* Initialize cmd_free_q */
449 INIT_LIST_HEAD(&adapter
->cmd_free_q
);
450 /* Initialize cmd_pending_q */
451 INIT_LIST_HEAD(&adapter
->cmd_pending_q
);
452 /* Initialize scan_pending_q */
453 INIT_LIST_HEAD(&adapter
->scan_pending_q
);
455 spin_lock_init(&adapter
->cmd_free_q_lock
);
456 spin_lock_init(&adapter
->cmd_pending_q_lock
);
457 spin_lock_init(&adapter
->scan_pending_q_lock
);
458 spin_lock_init(&adapter
->rx_proc_lock
);
460 skb_queue_head_init(&adapter
->rx_data_q
);
462 for (i
= 0; i
< adapter
->priv_num
; ++i
) {
463 INIT_LIST_HEAD(&adapter
->bss_prio_tbl
[i
].bss_prio_head
);
464 spin_lock_init(&adapter
->bss_prio_tbl
[i
].bss_prio_lock
);
467 for (i
= 0; i
< adapter
->priv_num
; i
++) {
468 if (!adapter
->priv
[i
])
470 priv
= adapter
->priv
[i
];
471 for (j
= 0; j
< MAX_NUM_TID
; ++j
)
472 INIT_LIST_HEAD(&priv
->wmm
.tid_tbl_ptr
[j
].ra_list
);
473 INIT_LIST_HEAD(&priv
->tx_ba_stream_tbl_ptr
);
474 INIT_LIST_HEAD(&priv
->rx_reorder_tbl_ptr
);
475 INIT_LIST_HEAD(&priv
->sta_list
);
476 INIT_LIST_HEAD(&priv
->auto_tdls_list
);
477 skb_queue_head_init(&priv
->tdls_txq
);
479 spin_lock_init(&priv
->tx_ba_stream_tbl_lock
);
480 spin_lock_init(&priv
->rx_reorder_tbl_lock
);
482 spin_lock_init(&priv
->ack_status_lock
);
483 idr_init(&priv
->ack_status_frames
);
490 * This function initializes the firmware.
492 * The following operations are performed sequentially -
493 * - Allocate adapter structure
494 * - Initialize the adapter structure
495 * - Initialize the private structure
496 * - Add BSS priority tables to the adapter structure
497 * - For each interface, send the init commands to firmware
498 * - Send the first command in command pending queue, if available
500 int mwifiex_init_fw(struct mwifiex_adapter
*adapter
)
503 struct mwifiex_private
*priv
;
504 u8 i
, first_sta
= true;
505 int is_cmd_pend_q_empty
;
508 adapter
->hw_status
= MWIFIEX_HW_STATUS_INITIALIZING
;
510 /* Allocate memory for member of adapter structure */
511 ret
= mwifiex_allocate_adapter(adapter
);
515 /* Initialize adapter structure */
516 mwifiex_init_adapter(adapter
);
518 for (i
= 0; i
< adapter
->priv_num
; i
++) {
519 if (adapter
->priv
[i
]) {
520 priv
= adapter
->priv
[i
];
522 /* Initialize private structure */
523 ret
= mwifiex_init_priv(priv
);
529 if (adapter
->if_ops
.init_fw_port
) {
530 if (adapter
->if_ops
.init_fw_port(adapter
))
534 for (i
= 0; i
< adapter
->priv_num
; i
++) {
535 if (adapter
->priv
[i
]) {
536 ret
= mwifiex_sta_init_cmd(adapter
->priv
[i
], first_sta
);
544 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
545 is_cmd_pend_q_empty
= list_empty(&adapter
->cmd_pending_q
);
546 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
547 if (!is_cmd_pend_q_empty
) {
548 /* Send the first command in queue and return */
549 if (mwifiex_main_process(adapter
) != -1)
552 adapter
->hw_status
= MWIFIEX_HW_STATUS_READY
;
559 * This function deletes the BSS priority tables.
561 * The function traverses through all the allocated BSS priority nodes
562 * in every BSS priority table and frees them.
564 static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private
*priv
)
567 struct mwifiex_adapter
*adapter
= priv
->adapter
;
568 struct mwifiex_bss_prio_node
*bssprio_node
, *tmp_node
;
569 struct list_head
*head
;
570 spinlock_t
*lock
; /* bss priority lock */
573 for (i
= 0; i
< adapter
->priv_num
; ++i
) {
574 head
= &adapter
->bss_prio_tbl
[i
].bss_prio_head
;
575 lock
= &adapter
->bss_prio_tbl
[i
].bss_prio_lock
;
576 dev_dbg(adapter
->dev
, "info: delete BSS priority table,"
577 " bss_type = %d, bss_num = %d, i = %d,"
579 priv
->bss_type
, priv
->bss_num
, i
, head
);
582 spin_lock_irqsave(lock
, flags
);
583 if (list_empty(head
)) {
584 spin_unlock_irqrestore(lock
, flags
);
587 list_for_each_entry_safe(bssprio_node
, tmp_node
, head
,
589 if (bssprio_node
->priv
== priv
) {
590 dev_dbg(adapter
->dev
, "info: Delete "
591 "node %p, next = %p\n",
592 bssprio_node
, tmp_node
);
593 list_del(&bssprio_node
->list
);
597 spin_unlock_irqrestore(lock
, flags
);
603 * This function frees the private structure, including cleans
604 * up the TX and RX queues and frees the BSS priority tables.
606 void mwifiex_free_priv(struct mwifiex_private
*priv
)
608 mwifiex_clean_txrx(priv
);
609 mwifiex_delete_bss_prio_tbl(priv
);
610 mwifiex_free_curr_bcn(priv
);
614 * This function is used to shutdown the driver.
616 * The following operations are performed sequentially -
617 * - Check if already shut down
618 * - Make sure the main process has stopped
619 * - Clean up the Tx and Rx queues
620 * - Delete BSS priority tables
622 * - Notify completion
625 mwifiex_shutdown_drv(struct mwifiex_adapter
*adapter
)
627 int ret
= -EINPROGRESS
;
628 struct mwifiex_private
*priv
;
633 /* mwifiex already shutdown */
634 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_NOT_READY
)
637 adapter
->hw_status
= MWIFIEX_HW_STATUS_CLOSING
;
638 /* wait for mwifiex_process to complete */
639 if (adapter
->mwifiex_processing
) {
640 dev_warn(adapter
->dev
, "main process is still running\n");
644 /* cancel current command */
645 if (adapter
->curr_cmd
) {
646 dev_warn(adapter
->dev
, "curr_cmd is still in processing\n");
647 del_timer_sync(&adapter
->cmd_timer
);
648 mwifiex_recycle_cmd_node(adapter
, adapter
->curr_cmd
);
649 adapter
->curr_cmd
= NULL
;
652 /* shut down mwifiex */
653 dev_dbg(adapter
->dev
, "info: shutdown mwifiex...\n");
655 /* Clean up Tx/Rx queues and delete BSS priority table */
656 for (i
= 0; i
< adapter
->priv_num
; i
++) {
657 if (adapter
->priv
[i
]) {
658 priv
= adapter
->priv
[i
];
660 mwifiex_clean_auto_tdls(priv
);
661 mwifiex_clean_txrx(priv
);
662 mwifiex_delete_bss_prio_tbl(priv
);
666 spin_lock_irqsave(&adapter
->rx_proc_lock
, flags
);
668 while ((skb
= skb_dequeue(&adapter
->rx_data_q
))) {
669 struct mwifiex_rxinfo
*rx_info
= MWIFIEX_SKB_RXCB(skb
);
671 atomic_dec(&adapter
->rx_pending
);
672 priv
= adapter
->priv
[rx_info
->bss_num
];
674 priv
->stats
.rx_dropped
++;
676 dev_kfree_skb_any(skb
);
679 spin_unlock_irqrestore(&adapter
->rx_proc_lock
, flags
);
681 spin_lock(&adapter
->mwifiex_lock
);
683 mwifiex_adapter_cleanup(adapter
);
685 spin_unlock(&adapter
->mwifiex_lock
);
687 /* Notify completion */
688 ret
= mwifiex_shutdown_fw_complete(adapter
);
694 * This function downloads the firmware to the card.
696 * The actual download is preceded by two sanity checks -
697 * - Check if firmware is already running
698 * - Check if the interface is the winner to download the firmware
700 * ...and followed by another -
701 * - Check if the firmware is downloaded successfully
703 * After download is successfully completed, the host interrupts are enabled.
705 int mwifiex_dnld_fw(struct mwifiex_adapter
*adapter
,
706 struct mwifiex_fw_image
*pmfw
)
711 if (adapter
->if_ops
.check_fw_status
) {
714 /* check if firmware is already running */
715 ret
= adapter
->if_ops
.check_fw_status(adapter
, poll_num
);
717 dev_notice(adapter
->dev
,
718 "WLAN FW already running! Skip FW dnld\n");
722 poll_num
= MAX_FIRMWARE_POLL_TRIES
;
724 /* check if we are the winner for downloading FW */
725 if (!adapter
->winner
) {
726 dev_notice(adapter
->dev
,
727 "FW already running! Skip FW dnld\n");
733 /* Download firmware with helper */
734 ret
= adapter
->if_ops
.prog_fw(adapter
, pmfw
);
736 dev_err(adapter
->dev
, "prog_fw failed ret=%#x\n", ret
);
742 /* Check if the firmware is downloaded successfully or not */
743 ret
= adapter
->if_ops
.check_fw_status(adapter
, poll_num
);
745 dev_err(adapter
->dev
, "FW failed to be active in time\n");