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
);
55 static void wakeup_timer_fn(unsigned long data
)
57 struct mwifiex_adapter
*adapter
= (struct mwifiex_adapter
*)data
;
59 mwifiex_dbg(adapter
, ERROR
, "Firmware wakeup failed\n");
60 adapter
->hw_status
= MWIFIEX_HW_STATUS_RESET
;
61 mwifiex_cancel_all_pending_cmd(adapter
);
63 if (adapter
->if_ops
.card_reset
)
64 adapter
->if_ops
.card_reset(adapter
);
68 * This function initializes the private structure and sets default
69 * values to the members.
71 * Additionally, it also initializes all the locks and sets up all the
74 int mwifiex_init_priv(struct mwifiex_private
*priv
)
78 priv
->media_connected
= false;
79 eth_broadcast_addr(priv
->curr_addr
);
80 priv
->port_open
= false;
81 priv
->usb_port
= MWIFIEX_USB_EP_DATA
;
82 priv
->pkt_tx_ctrl
= 0;
83 priv
->bss_mode
= NL80211_IFTYPE_UNSPECIFIED
;
84 priv
->data_rate
= 0; /* Initially indicate the rate as auto */
85 priv
->is_data_rate_auto
= true;
86 priv
->bcn_avg_factor
= DEFAULT_BCN_AVG_FACTOR
;
87 priv
->data_avg_factor
= DEFAULT_DATA_AVG_FACTOR
;
89 priv
->sec_info
.wep_enabled
= 0;
90 priv
->sec_info
.authentication_mode
= NL80211_AUTHTYPE_OPEN_SYSTEM
;
91 priv
->sec_info
.encryption_mode
= 0;
92 for (i
= 0; i
< ARRAY_SIZE(priv
->wep_key
); i
++)
93 memset(&priv
->wep_key
[i
], 0, sizeof(struct mwifiex_wep_key
));
94 priv
->wep_key_curr_index
= 0;
95 priv
->curr_pkt_filter
= HostCmd_ACT_MAC_RX_ON
| HostCmd_ACT_MAC_TX_ON
|
96 HostCmd_ACT_MAC_ETHERNETII_ENABLE
;
98 priv
->beacon_period
= 100; /* beacon interval */ ;
99 priv
->attempted_bss_desc
= NULL
;
100 memset(&priv
->curr_bss_params
, 0, sizeof(priv
->curr_bss_params
));
101 priv
->listen_interval
= MWIFIEX_DEFAULT_LISTEN_INTERVAL
;
103 memset(&priv
->prev_ssid
, 0, sizeof(priv
->prev_ssid
));
104 memset(&priv
->prev_bssid
, 0, sizeof(priv
->prev_bssid
));
105 memset(&priv
->assoc_rsp_buf
, 0, sizeof(priv
->assoc_rsp_buf
));
106 priv
->assoc_rsp_size
= 0;
107 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
108 priv
->atim_window
= 0;
109 priv
->adhoc_state
= ADHOC_IDLE
;
110 priv
->tx_power_level
= 0;
111 priv
->max_tx_power_level
= 0;
112 priv
->min_tx_power_level
= 0;
114 priv
->rxpd_htinfo
= 0;
116 priv
->rate_bitmap
= 0;
117 priv
->data_rssi_last
= 0;
118 priv
->data_rssi_avg
= 0;
119 priv
->data_nf_avg
= 0;
120 priv
->data_nf_last
= 0;
121 priv
->bcn_rssi_last
= 0;
122 priv
->bcn_rssi_avg
= 0;
123 priv
->bcn_nf_avg
= 0;
124 priv
->bcn_nf_last
= 0;
125 memset(&priv
->wpa_ie
, 0, sizeof(priv
->wpa_ie
));
126 memset(&priv
->aes_key
, 0, sizeof(priv
->aes_key
));
127 priv
->wpa_ie_len
= 0;
128 priv
->wpa_is_gtk_set
= false;
130 memset(&priv
->assoc_tlv_buf
, 0, sizeof(priv
->assoc_tlv_buf
));
131 priv
->assoc_tlv_buf_len
= 0;
132 memset(&priv
->wps
, 0, sizeof(priv
->wps
));
133 memset(&priv
->gen_ie_buf
, 0, sizeof(priv
->gen_ie_buf
));
134 priv
->gen_ie_buf_len
= 0;
135 memset(priv
->vs_ie
, 0, sizeof(priv
->vs_ie
));
137 priv
->wmm_required
= true;
138 priv
->wmm_enabled
= false;
139 priv
->wmm_qosinfo
= 0;
140 priv
->curr_bcn_buf
= NULL
;
141 priv
->curr_bcn_size
= 0;
143 priv
->wps_ie_len
= 0;
144 priv
->ap_11n_enabled
= 0;
145 memset(&priv
->roc_cfg
, 0, sizeof(priv
->roc_cfg
));
147 priv
->scan_block
= false;
150 priv
->csa_expire_time
= 0;
151 priv
->del_list_idx
= 0;
152 priv
->hs2_enabled
= false;
153 priv
->check_tdls_tx
= false;
154 memcpy(priv
->tos_to_tid_inv
, tos_to_tid_inv
, MAX_NUM_TID
);
156 mwifiex_init_11h_params(priv
);
158 return mwifiex_add_bss_prio_tbl(priv
);
162 * This function allocates buffers for members of the adapter
165 * The memory allocated includes scan table, command buffers, and
166 * sleep confirm command buffer. In addition, the queues are
169 static int mwifiex_allocate_adapter(struct mwifiex_adapter
*adapter
)
173 /* Allocate command buffer */
174 ret
= mwifiex_alloc_cmd_buffer(adapter
);
176 mwifiex_dbg(adapter
, ERROR
,
177 "%s: failed to alloc cmd buffer\n",
183 dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm
)
186 if (!adapter
->sleep_cfm
) {
187 mwifiex_dbg(adapter
, ERROR
,
188 "%s: failed to alloc sleep cfm\t"
189 " cmd buffer\n", __func__
);
192 skb_reserve(adapter
->sleep_cfm
, INTF_HEADER_LEN
);
198 * This function initializes the adapter structure and sets default
199 * values to the members of adapter.
201 * This also initializes the WMM related parameters in the driver private
204 static void mwifiex_init_adapter(struct mwifiex_adapter
*adapter
)
206 struct mwifiex_opt_sleep_confirm
*sleep_cfm_buf
= NULL
;
208 skb_put(adapter
->sleep_cfm
, sizeof(struct mwifiex_opt_sleep_confirm
));
210 adapter
->cmd_sent
= false;
212 if (adapter
->iface_type
== MWIFIEX_SDIO
)
213 adapter
->data_sent
= true;
215 adapter
->data_sent
= false;
217 adapter
->cmd_resp_received
= false;
218 adapter
->event_received
= false;
219 adapter
->data_received
= false;
221 adapter
->surprise_removed
= false;
223 adapter
->hw_status
= MWIFIEX_HW_STATUS_INITIALIZING
;
225 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_CAM
;
226 adapter
->ps_state
= PS_STATE_AWAKE
;
227 adapter
->need_to_wakeup
= false;
229 adapter
->scan_mode
= HostCmd_BSS_MODE_ANY
;
230 adapter
->specific_scan_time
= MWIFIEX_SPECIFIC_SCAN_CHAN_TIME
;
231 adapter
->active_scan_time
= MWIFIEX_ACTIVE_SCAN_CHAN_TIME
;
232 adapter
->passive_scan_time
= MWIFIEX_PASSIVE_SCAN_CHAN_TIME
;
233 adapter
->scan_chan_gap_time
= MWIFIEX_DEF_SCAN_CHAN_GAP_TIME
;
235 adapter
->scan_probes
= 1;
237 adapter
->multiple_dtim
= 1;
239 adapter
->local_listen_interval
= 0; /* default value in firmware
242 adapter
->is_deep_sleep
= false;
244 adapter
->delay_null_pkt
= false;
245 adapter
->delay_to_ps
= 1000;
246 adapter
->enhanced_ps_mode
= PS_MODE_AUTO
;
248 adapter
->gen_null_pkt
= false; /* Disable NULL Pkg generation by
250 adapter
->pps_uapsd_mode
= false; /* Disable pps/uapsd mode by
252 adapter
->pm_wakeup_card_req
= false;
254 adapter
->pm_wakeup_fw_try
= false;
256 adapter
->curr_tx_buf_size
= MWIFIEX_TX_DATA_BUF_SIZE_2K
;
258 adapter
->is_hs_configured
= false;
259 adapter
->hs_cfg
.conditions
= cpu_to_le32(HS_CFG_COND_DEF
);
260 adapter
->hs_cfg
.gpio
= HS_CFG_GPIO_DEF
;
261 adapter
->hs_cfg
.gap
= HS_CFG_GAP_DEF
;
262 adapter
->hs_activated
= false;
264 memset(adapter
->event_body
, 0, sizeof(adapter
->event_body
));
265 adapter
->hw_dot_11n_dev_cap
= 0;
266 adapter
->hw_dev_mcs_support
= 0;
267 adapter
->sec_chan_offset
= 0;
268 adapter
->adhoc_11n_enabled
= false;
270 mwifiex_wmm_init(adapter
);
272 sleep_cfm_buf
= (struct mwifiex_opt_sleep_confirm
*)
273 adapter
->sleep_cfm
->data
;
274 memset(sleep_cfm_buf
, 0, adapter
->sleep_cfm
->len
);
275 sleep_cfm_buf
->command
= cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH
);
276 sleep_cfm_buf
->size
= cpu_to_le16(adapter
->sleep_cfm
->len
);
277 sleep_cfm_buf
->result
= 0;
278 sleep_cfm_buf
->action
= cpu_to_le16(SLEEP_CONFIRM
);
279 sleep_cfm_buf
->resp_ctrl
= cpu_to_le16(RESP_NEEDED
);
281 memset(&adapter
->sleep_params
, 0, sizeof(adapter
->sleep_params
));
282 memset(&adapter
->sleep_period
, 0, sizeof(adapter
->sleep_period
));
283 adapter
->tx_lock_flag
= false;
284 adapter
->null_pkt_interval
= 0;
285 adapter
->fw_bands
= 0;
286 adapter
->config_bands
= 0;
287 adapter
->adhoc_start_band
= 0;
288 adapter
->scan_channels
= NULL
;
289 adapter
->fw_release_number
= 0;
290 adapter
->fw_cap_info
= 0;
291 memset(&adapter
->upld_buf
, 0, sizeof(adapter
->upld_buf
));
292 adapter
->event_cause
= 0;
293 adapter
->region_code
= 0;
294 adapter
->bcn_miss_time_out
= DEFAULT_BCN_MISS_TIMEOUT
;
295 adapter
->adhoc_awake_period
= 0;
296 memset(&adapter
->arp_filter
, 0, sizeof(adapter
->arp_filter
));
297 adapter
->arp_filter_size
= 0;
298 adapter
->max_mgmt_ie_index
= MAX_MGMT_IE_INDEX
;
299 adapter
->key_api_major_ver
= 0;
300 adapter
->key_api_minor_ver
= 0;
301 eth_broadcast_addr(adapter
->perm_addr
);
302 adapter
->iface_limit
.sta_intf
= MWIFIEX_MAX_STA_NUM
;
303 adapter
->iface_limit
.uap_intf
= MWIFIEX_MAX_UAP_NUM
;
304 adapter
->iface_limit
.p2p_intf
= MWIFIEX_MAX_P2P_NUM
;
305 adapter
->active_scan_triggered
= false;
306 setup_timer(&adapter
->wakeup_timer
, wakeup_timer_fn
,
307 (unsigned long)adapter
);
311 * This function sets trans_start per tx_queue
313 void mwifiex_set_trans_start(struct net_device
*dev
)
317 for (i
= 0; i
< dev
->num_tx_queues
; i
++)
318 netdev_get_tx_queue(dev
, i
)->trans_start
= jiffies
;
320 dev
->trans_start
= jiffies
;
324 * This function wakes up all queues in net_device
326 void mwifiex_wake_up_net_dev_queue(struct net_device
*netdev
,
327 struct mwifiex_adapter
*adapter
)
329 unsigned long dev_queue_flags
;
332 spin_lock_irqsave(&adapter
->queue_lock
, dev_queue_flags
);
334 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
335 struct netdev_queue
*txq
= netdev_get_tx_queue(netdev
, i
);
337 if (netif_tx_queue_stopped(txq
))
338 netif_tx_wake_queue(txq
);
341 spin_unlock_irqrestore(&adapter
->queue_lock
, dev_queue_flags
);
345 * This function stops all queues in net_device
347 void mwifiex_stop_net_dev_queue(struct net_device
*netdev
,
348 struct mwifiex_adapter
*adapter
)
350 unsigned long dev_queue_flags
;
353 spin_lock_irqsave(&adapter
->queue_lock
, dev_queue_flags
);
355 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
356 struct netdev_queue
*txq
= netdev_get_tx_queue(netdev
, i
);
358 if (!netif_tx_queue_stopped(txq
))
359 netif_tx_stop_queue(txq
);
362 spin_unlock_irqrestore(&adapter
->queue_lock
, dev_queue_flags
);
366 * This function releases the lock variables and frees the locks and
369 static void mwifiex_free_lock_list(struct mwifiex_adapter
*adapter
)
371 struct mwifiex_private
*priv
;
375 list_del(&adapter
->cmd_free_q
);
376 list_del(&adapter
->cmd_pending_q
);
377 list_del(&adapter
->scan_pending_q
);
379 for (i
= 0; i
< adapter
->priv_num
; i
++)
380 list_del(&adapter
->bss_prio_tbl
[i
].bss_prio_head
);
382 for (i
= 0; i
< adapter
->priv_num
; i
++) {
383 if (adapter
->priv
[i
]) {
384 priv
= adapter
->priv
[i
];
385 for (j
= 0; j
< MAX_NUM_TID
; ++j
)
386 list_del(&priv
->wmm
.tid_tbl_ptr
[j
].ra_list
);
387 list_del(&priv
->tx_ba_stream_tbl_ptr
);
388 list_del(&priv
->rx_reorder_tbl_ptr
);
389 list_del(&priv
->sta_list
);
390 list_del(&priv
->auto_tdls_list
);
396 * This function performs cleanup for adapter structure.
398 * The cleanup is done recursively, by canceling all pending
399 * commands, freeing the member buffers previously allocated
400 * (command buffers, scan table buffer, sleep confirm command
401 * buffer), stopping the timers and calling the cleanup routines
402 * for every interface.
405 mwifiex_adapter_cleanup(struct mwifiex_adapter
*adapter
)
410 pr_err("%s: adapter is NULL\n", __func__
);
414 del_timer(&adapter
->wakeup_timer
);
415 mwifiex_cancel_all_pending_cmd(adapter
);
416 wake_up_interruptible(&adapter
->cmd_wait_q
.wait
);
417 wake_up_interruptible(&adapter
->hs_activate_wait_q
);
419 /* Free lock variables */
420 mwifiex_free_lock_list(adapter
);
422 /* Free command buffer */
423 mwifiex_dbg(adapter
, INFO
, "info: free cmd buffer\n");
424 mwifiex_free_cmd_buffer(adapter
);
426 for (idx
= 0; idx
< adapter
->num_mem_types
; idx
++) {
427 struct memory_type_mapping
*entry
=
428 &adapter
->mem_type_mapping_tbl
[idx
];
430 if (entry
->mem_ptr
) {
431 vfree(entry
->mem_ptr
);
432 entry
->mem_ptr
= NULL
;
437 if (adapter
->drv_info_dump
) {
438 vfree(adapter
->drv_info_dump
);
439 adapter
->drv_info_dump
= NULL
;
440 adapter
->drv_info_size
= 0;
443 if (adapter
->sleep_cfm
)
444 dev_kfree_skb_any(adapter
->sleep_cfm
);
448 * This function intializes the lock variables and
451 int mwifiex_init_lock_list(struct mwifiex_adapter
*adapter
)
453 struct mwifiex_private
*priv
;
456 spin_lock_init(&adapter
->mwifiex_lock
);
457 spin_lock_init(&adapter
->int_lock
);
458 spin_lock_init(&adapter
->main_proc_lock
);
459 spin_lock_init(&adapter
->mwifiex_cmd_lock
);
460 spin_lock_init(&adapter
->queue_lock
);
461 for (i
= 0; i
< adapter
->priv_num
; i
++) {
462 if (adapter
->priv
[i
]) {
463 priv
= adapter
->priv
[i
];
464 spin_lock_init(&priv
->rx_pkt_lock
);
465 spin_lock_init(&priv
->wmm
.ra_list_spinlock
);
466 spin_lock_init(&priv
->curr_bcn_buf_lock
);
467 spin_lock_init(&priv
->sta_list_spinlock
);
468 spin_lock_init(&priv
->auto_tdls_lock
);
472 /* Initialize cmd_free_q */
473 INIT_LIST_HEAD(&adapter
->cmd_free_q
);
474 /* Initialize cmd_pending_q */
475 INIT_LIST_HEAD(&adapter
->cmd_pending_q
);
476 /* Initialize scan_pending_q */
477 INIT_LIST_HEAD(&adapter
->scan_pending_q
);
479 spin_lock_init(&adapter
->cmd_free_q_lock
);
480 spin_lock_init(&adapter
->cmd_pending_q_lock
);
481 spin_lock_init(&adapter
->scan_pending_q_lock
);
482 spin_lock_init(&adapter
->rx_proc_lock
);
484 skb_queue_head_init(&adapter
->rx_data_q
);
485 skb_queue_head_init(&adapter
->tx_data_q
);
487 for (i
= 0; i
< adapter
->priv_num
; ++i
) {
488 INIT_LIST_HEAD(&adapter
->bss_prio_tbl
[i
].bss_prio_head
);
489 spin_lock_init(&adapter
->bss_prio_tbl
[i
].bss_prio_lock
);
492 for (i
= 0; i
< adapter
->priv_num
; i
++) {
493 if (!adapter
->priv
[i
])
495 priv
= adapter
->priv
[i
];
496 for (j
= 0; j
< MAX_NUM_TID
; ++j
)
497 INIT_LIST_HEAD(&priv
->wmm
.tid_tbl_ptr
[j
].ra_list
);
498 INIT_LIST_HEAD(&priv
->tx_ba_stream_tbl_ptr
);
499 INIT_LIST_HEAD(&priv
->rx_reorder_tbl_ptr
);
500 INIT_LIST_HEAD(&priv
->sta_list
);
501 INIT_LIST_HEAD(&priv
->auto_tdls_list
);
502 skb_queue_head_init(&priv
->tdls_txq
);
503 skb_queue_head_init(&priv
->bypass_txq
);
505 spin_lock_init(&priv
->tx_ba_stream_tbl_lock
);
506 spin_lock_init(&priv
->rx_reorder_tbl_lock
);
508 spin_lock_init(&priv
->ack_status_lock
);
509 idr_init(&priv
->ack_status_frames
);
516 * This function initializes the firmware.
518 * The following operations are performed sequentially -
519 * - Allocate adapter structure
520 * - Initialize the adapter structure
521 * - Initialize the private structure
522 * - Add BSS priority tables to the adapter structure
523 * - For each interface, send the init commands to firmware
524 * - Send the first command in command pending queue, if available
526 int mwifiex_init_fw(struct mwifiex_adapter
*adapter
)
529 struct mwifiex_private
*priv
;
530 u8 i
, first_sta
= true;
531 int is_cmd_pend_q_empty
;
534 adapter
->hw_status
= MWIFIEX_HW_STATUS_INITIALIZING
;
536 /* Allocate memory for member of adapter structure */
537 ret
= mwifiex_allocate_adapter(adapter
);
541 /* Initialize adapter structure */
542 mwifiex_init_adapter(adapter
);
544 for (i
= 0; i
< adapter
->priv_num
; i
++) {
545 if (adapter
->priv
[i
]) {
546 priv
= adapter
->priv
[i
];
548 /* Initialize private structure */
549 ret
= mwifiex_init_priv(priv
);
555 for (i
= 0; i
< adapter
->priv_num
; i
++) {
556 if (adapter
->priv
[i
]) {
557 ret
= mwifiex_sta_init_cmd(adapter
->priv
[i
], first_sta
,
566 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
567 is_cmd_pend_q_empty
= list_empty(&adapter
->cmd_pending_q
);
568 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
569 if (!is_cmd_pend_q_empty
) {
570 /* Send the first command in queue and return */
571 if (mwifiex_main_process(adapter
) != -1)
574 adapter
->hw_status
= MWIFIEX_HW_STATUS_READY
;
581 * This function deletes the BSS priority tables.
583 * The function traverses through all the allocated BSS priority nodes
584 * in every BSS priority table and frees them.
586 static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private
*priv
)
589 struct mwifiex_adapter
*adapter
= priv
->adapter
;
590 struct mwifiex_bss_prio_node
*bssprio_node
, *tmp_node
;
591 struct list_head
*head
;
592 spinlock_t
*lock
; /* bss priority lock */
595 for (i
= 0; i
< adapter
->priv_num
; ++i
) {
596 head
= &adapter
->bss_prio_tbl
[i
].bss_prio_head
;
597 lock
= &adapter
->bss_prio_tbl
[i
].bss_prio_lock
;
598 mwifiex_dbg(adapter
, INFO
,
599 "info: delete BSS priority table,\t"
600 "bss_type = %d, bss_num = %d, i = %d,\t"
602 priv
->bss_type
, priv
->bss_num
, i
, head
);
605 spin_lock_irqsave(lock
, flags
);
606 if (list_empty(head
)) {
607 spin_unlock_irqrestore(lock
, flags
);
610 list_for_each_entry_safe(bssprio_node
, tmp_node
, head
,
612 if (bssprio_node
->priv
== priv
) {
613 mwifiex_dbg(adapter
, INFO
,
615 "node %p, next = %p\n",
616 bssprio_node
, tmp_node
);
617 list_del(&bssprio_node
->list
);
621 spin_unlock_irqrestore(lock
, flags
);
627 * This function frees the private structure, including cleans
628 * up the TX and RX queues and frees the BSS priority tables.
630 void mwifiex_free_priv(struct mwifiex_private
*priv
)
632 mwifiex_clean_txrx(priv
);
633 mwifiex_delete_bss_prio_tbl(priv
);
634 mwifiex_free_curr_bcn(priv
);
638 * This function is used to shutdown the driver.
640 * The following operations are performed sequentially -
641 * - Check if already shut down
642 * - Make sure the main process has stopped
643 * - Clean up the Tx and Rx queues
644 * - Delete BSS priority tables
646 * - Notify completion
649 mwifiex_shutdown_drv(struct mwifiex_adapter
*adapter
)
651 int ret
= -EINPROGRESS
;
652 struct mwifiex_private
*priv
;
657 /* mwifiex already shutdown */
658 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_NOT_READY
)
661 adapter
->hw_status
= MWIFIEX_HW_STATUS_CLOSING
;
662 /* wait for mwifiex_process to complete */
663 if (adapter
->mwifiex_processing
) {
664 mwifiex_dbg(adapter
, WARN
,
665 "main process is still running\n");
669 /* cancel current command */
670 if (adapter
->curr_cmd
) {
671 mwifiex_dbg(adapter
, WARN
,
672 "curr_cmd is still in processing\n");
673 del_timer_sync(&adapter
->cmd_timer
);
674 mwifiex_recycle_cmd_node(adapter
, adapter
->curr_cmd
);
675 adapter
->curr_cmd
= NULL
;
678 /* shut down mwifiex */
679 mwifiex_dbg(adapter
, MSG
,
680 "info: shutdown mwifiex...\n");
682 /* Clean up Tx/Rx queues and delete BSS priority table */
683 for (i
= 0; i
< adapter
->priv_num
; i
++) {
684 if (adapter
->priv
[i
]) {
685 priv
= adapter
->priv
[i
];
687 mwifiex_clean_auto_tdls(priv
);
688 mwifiex_abort_cac(priv
);
689 mwifiex_clean_txrx(priv
);
690 mwifiex_delete_bss_prio_tbl(priv
);
694 atomic_set(&adapter
->tx_queued
, 0);
695 while ((skb
= skb_dequeue(&adapter
->tx_data_q
)))
696 mwifiex_write_data_complete(adapter
, skb
, 0, 0);
698 spin_lock_irqsave(&adapter
->rx_proc_lock
, flags
);
700 while ((skb
= skb_dequeue(&adapter
->rx_data_q
))) {
701 struct mwifiex_rxinfo
*rx_info
= MWIFIEX_SKB_RXCB(skb
);
703 atomic_dec(&adapter
->rx_pending
);
704 priv
= adapter
->priv
[rx_info
->bss_num
];
706 priv
->stats
.rx_dropped
++;
708 dev_kfree_skb_any(skb
);
711 spin_unlock_irqrestore(&adapter
->rx_proc_lock
, flags
);
713 spin_lock(&adapter
->mwifiex_lock
);
715 mwifiex_adapter_cleanup(adapter
);
717 spin_unlock(&adapter
->mwifiex_lock
);
719 /* Notify completion */
720 ret
= mwifiex_shutdown_fw_complete(adapter
);
726 * This function downloads the firmware to the card.
728 * The actual download is preceded by two sanity checks -
729 * - Check if firmware is already running
730 * - Check if the interface is the winner to download the firmware
732 * ...and followed by another -
733 * - Check if the firmware is downloaded successfully
735 * After download is successfully completed, the host interrupts are enabled.
737 int mwifiex_dnld_fw(struct mwifiex_adapter
*adapter
,
738 struct mwifiex_fw_image
*pmfw
)
743 if (adapter
->if_ops
.check_fw_status
) {
746 /* check if firmware is already running */
747 ret
= adapter
->if_ops
.check_fw_status(adapter
, poll_num
);
749 mwifiex_dbg(adapter
, MSG
,
750 "WLAN FW already running! Skip FW dnld\n");
754 poll_num
= MAX_FIRMWARE_POLL_TRIES
;
756 /* check if we are the winner for downloading FW */
757 if (!adapter
->winner
) {
758 mwifiex_dbg(adapter
, MSG
,
759 "FW already running! Skip FW dnld\n");
765 /* Download firmware with helper */
766 ret
= adapter
->if_ops
.prog_fw(adapter
, pmfw
);
768 mwifiex_dbg(adapter
, ERROR
,
769 "prog_fw failed ret=%#x\n", ret
);
775 /* Check if the firmware is downloaded successfully or not */
776 ret
= adapter
->if_ops
.check_fw_status(adapter
, poll_num
);
778 mwifiex_dbg(adapter
, ERROR
,
779 "FW failed to be active in time\n");