2 * Marvell Wireless LAN device driver: major functions
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.
27 static unsigned int debug_mask
= MWIFIEX_DEFAULT_DEBUG_MASK
;
28 module_param(debug_mask
, uint
, 0);
29 MODULE_PARM_DESC(debug_mask
, "bitmap for debug flags");
31 const char driver_version
[] = "mwifiex " VERSION
" (%s) ";
32 static char *cal_data_cfg
;
33 module_param(cal_data_cfg
, charp
, 0);
35 static unsigned short driver_mode
;
36 module_param(driver_mode
, ushort
, 0);
37 MODULE_PARM_DESC(driver_mode
,
38 "station=0x1(default), ap-sta=0x3, station-p2p=0x5, ap-sta-p2p=0x7");
41 * This function registers the device and performs all the necessary
44 * The following initialization operations are performed -
45 * - Allocate adapter structure
46 * - Save interface specific operations table in adapter
47 * - Call interface specific initialization routine
48 * - Allocate private structures
49 * - Set default adapter structure parameters
52 * In case of any errors during inittialization, this function also ensures
53 * proper cleanup before exiting.
55 static int mwifiex_register(void *card
, struct mwifiex_if_ops
*if_ops
,
58 struct mwifiex_adapter
*adapter
;
61 adapter
= kzalloc(sizeof(struct mwifiex_adapter
), GFP_KERNEL
);
68 /* Save interface specific operations in adapter */
69 memmove(&adapter
->if_ops
, if_ops
, sizeof(struct mwifiex_if_ops
));
70 adapter
->debug_mask
= debug_mask
;
72 /* card specific initialization has been deferred until now .. */
73 if (adapter
->if_ops
.init_if
)
74 if (adapter
->if_ops
.init_if(adapter
))
77 adapter
->priv_num
= 0;
79 for (i
= 0; i
< MWIFIEX_MAX_BSS_NUM
; i
++) {
80 /* Allocate memory for private structure */
82 kzalloc(sizeof(struct mwifiex_private
), GFP_KERNEL
);
83 if (!adapter
->priv
[i
])
86 adapter
->priv
[i
]->adapter
= adapter
;
89 mwifiex_init_lock_list(adapter
);
91 setup_timer(&adapter
->cmd_timer
, mwifiex_cmd_timeout_func
,
92 (unsigned long)adapter
);
97 mwifiex_dbg(adapter
, ERROR
,
98 "info: leave mwifiex_register with error\n");
100 for (i
= 0; i
< adapter
->priv_num
; i
++)
101 kfree(adapter
->priv
[i
]);
109 * This function unregisters the device and performs all the necessary
112 * The following cleanup operations are performed -
114 * - Free beacon buffers
115 * - Free private structures
116 * - Free adapter structure
118 static int mwifiex_unregister(struct mwifiex_adapter
*adapter
)
122 if (adapter
->if_ops
.cleanup_if
)
123 adapter
->if_ops
.cleanup_if(adapter
);
125 del_timer_sync(&adapter
->cmd_timer
);
127 /* Free private structures */
128 for (i
= 0; i
< adapter
->priv_num
; i
++) {
129 if (adapter
->priv
[i
]) {
130 mwifiex_free_curr_bcn(adapter
->priv
[i
]);
131 kfree(adapter
->priv
[i
]);
135 vfree(adapter
->chan_stats
);
140 void mwifiex_queue_main_work(struct mwifiex_adapter
*adapter
)
144 spin_lock_irqsave(&adapter
->main_proc_lock
, flags
);
145 if (adapter
->mwifiex_processing
) {
146 adapter
->more_task_flag
= true;
147 spin_unlock_irqrestore(&adapter
->main_proc_lock
, flags
);
149 spin_unlock_irqrestore(&adapter
->main_proc_lock
, flags
);
150 queue_work(adapter
->workqueue
, &adapter
->main_work
);
153 EXPORT_SYMBOL_GPL(mwifiex_queue_main_work
);
155 static void mwifiex_queue_rx_work(struct mwifiex_adapter
*adapter
)
159 spin_lock_irqsave(&adapter
->rx_proc_lock
, flags
);
160 if (adapter
->rx_processing
) {
161 spin_unlock_irqrestore(&adapter
->rx_proc_lock
, flags
);
163 spin_unlock_irqrestore(&adapter
->rx_proc_lock
, flags
);
164 queue_work(adapter
->rx_workqueue
, &adapter
->rx_work
);
168 static int mwifiex_process_rx(struct mwifiex_adapter
*adapter
)
172 struct mwifiex_rxinfo
*rx_info
;
174 spin_lock_irqsave(&adapter
->rx_proc_lock
, flags
);
175 if (adapter
->rx_processing
|| adapter
->rx_locked
) {
176 spin_unlock_irqrestore(&adapter
->rx_proc_lock
, flags
);
179 adapter
->rx_processing
= true;
180 spin_unlock_irqrestore(&adapter
->rx_proc_lock
, flags
);
183 /* Check for Rx data */
184 while ((skb
= skb_dequeue(&adapter
->rx_data_q
))) {
185 atomic_dec(&adapter
->rx_pending
);
186 if ((adapter
->delay_main_work
||
187 adapter
->iface_type
== MWIFIEX_USB
) &&
188 (atomic_read(&adapter
->rx_pending
) < LOW_RX_PENDING
)) {
189 if (adapter
->if_ops
.submit_rem_rx_urbs
)
190 adapter
->if_ops
.submit_rem_rx_urbs(adapter
);
191 adapter
->delay_main_work
= false;
192 mwifiex_queue_main_work(adapter
);
194 rx_info
= MWIFIEX_SKB_RXCB(skb
);
195 if (rx_info
->buf_type
== MWIFIEX_TYPE_AGGR_DATA
) {
196 if (adapter
->if_ops
.deaggr_pkt
)
197 adapter
->if_ops
.deaggr_pkt(adapter
, skb
);
198 dev_kfree_skb_any(skb
);
200 mwifiex_handle_rx_packet(adapter
, skb
);
203 spin_lock_irqsave(&adapter
->rx_proc_lock
, flags
);
204 adapter
->rx_processing
= false;
205 spin_unlock_irqrestore(&adapter
->rx_proc_lock
, flags
);
214 * This function is the main procedure of the driver and handles various driver
215 * operations. It runs in a loop and provides the core functionalities.
217 * The main responsibilities of this function are -
218 * - Ensure concurrency control
219 * - Handle pending interrupts and call interrupt handlers
220 * - Wake up the card if required
221 * - Handle command responses and call response handlers
222 * - Handle events and call event handlers
223 * - Execute pending commands
224 * - Transmit pending data packets
226 int mwifiex_main_process(struct mwifiex_adapter
*adapter
)
231 spin_lock_irqsave(&adapter
->main_proc_lock
, flags
);
233 /* Check if already processing */
234 if (adapter
->mwifiex_processing
|| adapter
->main_locked
) {
235 adapter
->more_task_flag
= true;
236 spin_unlock_irqrestore(&adapter
->main_proc_lock
, flags
);
239 adapter
->mwifiex_processing
= true;
240 spin_unlock_irqrestore(&adapter
->main_proc_lock
, flags
);
244 if ((adapter
->hw_status
== MWIFIEX_HW_STATUS_CLOSING
) ||
245 (adapter
->hw_status
== MWIFIEX_HW_STATUS_NOT_READY
))
248 /* For non-USB interfaces, If we process interrupts first, it
249 * would increase RX pending even further. Avoid this by
250 * checking if rx_pending has crossed high threshold and
251 * schedule rx work queue and then process interrupts.
252 * For USB interface, there are no interrupts. We already have
253 * HIGH_RX_PENDING check in usb.c
255 if (atomic_read(&adapter
->rx_pending
) >= HIGH_RX_PENDING
&&
256 adapter
->iface_type
!= MWIFIEX_USB
) {
257 adapter
->delay_main_work
= true;
258 mwifiex_queue_rx_work(adapter
);
262 /* Handle pending interrupt if any */
263 if (adapter
->int_status
) {
264 if (adapter
->hs_activated
)
265 mwifiex_process_hs_config(adapter
);
266 if (adapter
->if_ops
.process_int_status
)
267 adapter
->if_ops
.process_int_status(adapter
);
270 if (adapter
->rx_work_enabled
&& adapter
->data_received
)
271 mwifiex_queue_rx_work(adapter
);
273 /* Need to wake up the card ? */
274 if ((adapter
->ps_state
== PS_STATE_SLEEP
) &&
275 (adapter
->pm_wakeup_card_req
&&
276 !adapter
->pm_wakeup_fw_try
) &&
277 (is_command_pending(adapter
) ||
278 !skb_queue_empty(&adapter
->tx_data_q
) ||
279 !mwifiex_wmm_lists_empty(adapter
))) {
280 adapter
->pm_wakeup_fw_try
= true;
281 mod_timer(&adapter
->wakeup_timer
, jiffies
+ (HZ
*3));
282 adapter
->if_ops
.wakeup(adapter
);
286 if (IS_CARD_RX_RCVD(adapter
)) {
287 adapter
->data_received
= false;
288 adapter
->pm_wakeup_fw_try
= false;
289 del_timer(&adapter
->wakeup_timer
);
290 if (adapter
->ps_state
== PS_STATE_SLEEP
)
291 adapter
->ps_state
= PS_STATE_AWAKE
;
293 /* We have tried to wakeup the card already */
294 if (adapter
->pm_wakeup_fw_try
)
296 if (adapter
->ps_state
!= PS_STATE_AWAKE
||
297 adapter
->tx_lock_flag
)
300 if ((!adapter
->scan_chan_gap_enabled
&&
301 adapter
->scan_processing
) || adapter
->data_sent
||
302 (mwifiex_wmm_lists_empty(adapter
) &&
303 skb_queue_empty(&adapter
->tx_data_q
))) {
304 if (adapter
->cmd_sent
|| adapter
->curr_cmd
||
305 (!is_command_pending(adapter
)))
310 /* Check for event */
311 if (adapter
->event_received
) {
312 adapter
->event_received
= false;
313 mwifiex_process_event(adapter
);
316 /* Check for Cmd Resp */
317 if (adapter
->cmd_resp_received
) {
318 adapter
->cmd_resp_received
= false;
319 mwifiex_process_cmdresp(adapter
);
321 /* call mwifiex back when init_fw is done */
322 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_INIT_DONE
) {
323 adapter
->hw_status
= MWIFIEX_HW_STATUS_READY
;
324 mwifiex_init_fw_complete(adapter
);
328 /* Check if we need to confirm Sleep Request
329 received previously */
330 if (adapter
->ps_state
== PS_STATE_PRE_SLEEP
) {
331 if (!adapter
->cmd_sent
&& !adapter
->curr_cmd
)
332 mwifiex_check_ps_cond(adapter
);
335 /* * The ps_state may have been changed during processing of
336 * Sleep Request event.
338 if ((adapter
->ps_state
== PS_STATE_SLEEP
) ||
339 (adapter
->ps_state
== PS_STATE_PRE_SLEEP
) ||
340 (adapter
->ps_state
== PS_STATE_SLEEP_CFM
) ||
341 adapter
->tx_lock_flag
){
345 if (!adapter
->cmd_sent
&& !adapter
->curr_cmd
) {
346 if (mwifiex_exec_next_cmd(adapter
) == -1) {
352 if ((adapter
->scan_chan_gap_enabled
||
353 !adapter
->scan_processing
) &&
354 !adapter
->data_sent
&&
355 !skb_queue_empty(&adapter
->tx_data_q
)) {
356 mwifiex_process_tx_queue(adapter
);
357 if (adapter
->hs_activated
) {
358 adapter
->is_hs_configured
= false;
359 mwifiex_hs_activated_event
361 (adapter
, MWIFIEX_BSS_ROLE_ANY
),
366 if ((adapter
->scan_chan_gap_enabled
||
367 !adapter
->scan_processing
) &&
368 !adapter
->data_sent
&& !mwifiex_wmm_lists_empty(adapter
)) {
369 mwifiex_wmm_process_tx(adapter
);
370 if (adapter
->hs_activated
) {
371 adapter
->is_hs_configured
= false;
372 mwifiex_hs_activated_event
374 (adapter
, MWIFIEX_BSS_ROLE_ANY
),
379 if (adapter
->delay_null_pkt
&& !adapter
->cmd_sent
&&
380 !adapter
->curr_cmd
&& !is_command_pending(adapter
) &&
381 (mwifiex_wmm_lists_empty(adapter
) &&
382 skb_queue_empty(&adapter
->tx_data_q
))) {
383 if (!mwifiex_send_null_packet
384 (mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_STA
),
385 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET
|
386 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET
)) {
387 adapter
->delay_null_pkt
= false;
388 adapter
->ps_state
= PS_STATE_SLEEP
;
394 spin_lock_irqsave(&adapter
->main_proc_lock
, flags
);
395 if (adapter
->more_task_flag
) {
396 adapter
->more_task_flag
= false;
397 spin_unlock_irqrestore(&adapter
->main_proc_lock
, flags
);
400 adapter
->mwifiex_processing
= false;
401 spin_unlock_irqrestore(&adapter
->main_proc_lock
, flags
);
404 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_CLOSING
)
405 mwifiex_shutdown_drv(adapter
);
408 EXPORT_SYMBOL_GPL(mwifiex_main_process
);
411 * This function frees the adapter structure.
413 * Additionally, this closes the netlink socket, frees the timers
414 * and private structures.
416 static void mwifiex_free_adapter(struct mwifiex_adapter
*adapter
)
419 pr_err("%s: adapter is NULL\n", __func__
);
423 mwifiex_unregister(adapter
);
424 pr_debug("info: %s: free adapter\n", __func__
);
428 * This function cancels all works in the queue and destroys
429 * the main workqueue.
431 static void mwifiex_terminate_workqueue(struct mwifiex_adapter
*adapter
)
433 flush_workqueue(adapter
->workqueue
);
434 destroy_workqueue(adapter
->workqueue
);
435 adapter
->workqueue
= NULL
;
437 if (adapter
->rx_workqueue
) {
438 flush_workqueue(adapter
->rx_workqueue
);
439 destroy_workqueue(adapter
->rx_workqueue
);
440 adapter
->rx_workqueue
= NULL
;
445 * This function gets firmware and initializes it.
447 * The main initialization steps followed are -
448 * - Download the correct firmware to card
449 * - Issue the init commands to firmware
451 static void mwifiex_fw_dpc(const struct firmware
*firmware
, void *context
)
455 struct mwifiex_private
*priv
;
456 struct mwifiex_adapter
*adapter
= context
;
457 struct mwifiex_fw_image fw
;
458 struct semaphore
*sem
= adapter
->card_sem
;
459 bool init_failed
= false;
460 struct wireless_dev
*wdev
;
463 mwifiex_dbg(adapter
, ERROR
,
464 "Failed to get firmware %s\n", adapter
->fw_name
);
468 memset(&fw
, 0, sizeof(struct mwifiex_fw_image
));
469 adapter
->firmware
= firmware
;
470 fw
.fw_buf
= (u8
*) adapter
->firmware
->data
;
471 fw
.fw_len
= adapter
->firmware
->size
;
473 if (adapter
->if_ops
.dnld_fw
)
474 ret
= adapter
->if_ops
.dnld_fw(adapter
, &fw
);
476 ret
= mwifiex_dnld_fw(adapter
, &fw
);
480 mwifiex_dbg(adapter
, MSG
, "WLAN FW is active\n");
483 if ((request_firmware(&adapter
->cal_data
, cal_data_cfg
,
485 mwifiex_dbg(adapter
, ERROR
,
486 "Cal data request_firmware() failed\n");
489 /* enable host interrupt after fw dnld is successful */
490 if (adapter
->if_ops
.enable_int
) {
491 if (adapter
->if_ops
.enable_int(adapter
))
495 adapter
->init_wait_q_woken
= false;
496 ret
= mwifiex_init_fw(adapter
);
500 adapter
->hw_status
= MWIFIEX_HW_STATUS_READY
;
503 /* Wait for mwifiex_init to complete */
504 wait_event_interruptible(adapter
->init_wait_q
,
505 adapter
->init_wait_q_woken
);
506 if (adapter
->hw_status
!= MWIFIEX_HW_STATUS_READY
)
509 priv
= adapter
->priv
[MWIFIEX_BSS_ROLE_STA
];
510 if (mwifiex_register_cfg80211(adapter
)) {
511 mwifiex_dbg(adapter
, ERROR
,
512 "cannot register with cfg80211\n");
516 if (mwifiex_init_channel_scan_gap(adapter
)) {
517 mwifiex_dbg(adapter
, ERROR
,
518 "could not init channel stats table\n");
523 driver_mode
&= MWIFIEX_DRIVER_MODE_BITMASK
;
524 driver_mode
|= MWIFIEX_DRIVER_MODE_STA
;
528 /* Create station interface by default */
529 wdev
= mwifiex_add_virtual_intf(adapter
->wiphy
, "mlan%d", NET_NAME_ENUM
,
530 NL80211_IFTYPE_STATION
, NULL
, NULL
);
532 mwifiex_dbg(adapter
, ERROR
,
533 "cannot create default STA interface\n");
538 if (driver_mode
& MWIFIEX_DRIVER_MODE_UAP
) {
539 wdev
= mwifiex_add_virtual_intf(adapter
->wiphy
, "uap%d", NET_NAME_ENUM
,
540 NL80211_IFTYPE_AP
, NULL
, NULL
);
542 mwifiex_dbg(adapter
, ERROR
,
543 "cannot create AP interface\n");
549 if (driver_mode
& MWIFIEX_DRIVER_MODE_P2P
) {
550 wdev
= mwifiex_add_virtual_intf(adapter
->wiphy
, "p2p%d", NET_NAME_ENUM
,
551 NL80211_IFTYPE_P2P_CLIENT
, NULL
,
554 mwifiex_dbg(adapter
, ERROR
,
555 "cannot create p2p client interface\n");
562 mwifiex_drv_get_driver_version(adapter
, fmt
, sizeof(fmt
) - 1);
563 mwifiex_dbg(adapter
, MSG
, "driver_version = %s\n", fmt
);
567 wiphy_unregister(adapter
->wiphy
);
568 wiphy_free(adapter
->wiphy
);
570 if (adapter
->if_ops
.disable_int
)
571 adapter
->if_ops
.disable_int(adapter
);
573 mwifiex_dbg(adapter
, ERROR
,
574 "info: %s: unregister device\n", __func__
);
575 if (adapter
->if_ops
.unregister_dev
)
576 adapter
->if_ops
.unregister_dev(adapter
);
578 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_READY
) {
579 pr_debug("info: %s: shutdown mwifiex\n", __func__
);
580 adapter
->init_wait_q_woken
= false;
582 if (mwifiex_shutdown_drv(adapter
) == -EINPROGRESS
)
583 wait_event_interruptible(adapter
->init_wait_q
,
584 adapter
->init_wait_q_woken
);
586 adapter
->surprise_removed
= true;
587 mwifiex_terminate_workqueue(adapter
);
590 if (adapter
->cal_data
) {
591 release_firmware(adapter
->cal_data
);
592 adapter
->cal_data
= NULL
;
594 if (adapter
->firmware
) {
595 release_firmware(adapter
->firmware
);
596 adapter
->firmware
= NULL
;
599 mwifiex_free_adapter(adapter
);
605 * This function initializes the hardware and gets firmware.
607 static int mwifiex_init_hw_fw(struct mwifiex_adapter
*adapter
)
611 ret
= request_firmware_nowait(THIS_MODULE
, 1, adapter
->fw_name
,
612 adapter
->dev
, GFP_KERNEL
, adapter
,
615 mwifiex_dbg(adapter
, ERROR
,
616 "request_firmware_nowait error %d\n", ret
);
621 * CFG802.11 network device handler for open.
623 * Starts the data queue.
626 mwifiex_open(struct net_device
*dev
)
628 netif_carrier_off(dev
);
634 * CFG802.11 network device handler for close.
637 mwifiex_close(struct net_device
*dev
)
639 struct mwifiex_private
*priv
= mwifiex_netdev_get_priv(dev
);
641 if (priv
->scan_request
) {
642 mwifiex_dbg(priv
->adapter
, INFO
,
643 "aborting scan on ndo_stop\n");
644 cfg80211_scan_done(priv
->scan_request
, 1);
645 priv
->scan_request
= NULL
;
646 priv
->scan_aborting
= true;
653 * Add buffer into wmm tx queue and queue work to transmit it.
655 int mwifiex_queue_tx_pkt(struct mwifiex_private
*priv
, struct sk_buff
*skb
)
657 struct netdev_queue
*txq
;
658 int index
= mwifiex_1d_to_wmm_queue
[skb
->priority
];
660 if (atomic_inc_return(&priv
->wmm_tx_pending
[index
]) >= MAX_TX_PENDING
) {
661 txq
= netdev_get_tx_queue(priv
->netdev
, index
);
662 if (!netif_tx_queue_stopped(txq
)) {
663 netif_tx_stop_queue(txq
);
664 mwifiex_dbg(priv
->adapter
, DATA
,
665 "stop queue: %d\n", index
);
669 atomic_inc(&priv
->adapter
->tx_pending
);
670 mwifiex_wmm_add_buf_txqueue(priv
, skb
);
672 mwifiex_queue_main_work(priv
->adapter
);
678 mwifiex_clone_skb_for_tx_status(struct mwifiex_private
*priv
,
679 struct sk_buff
*skb
, u8 flag
, u64
*cookie
)
681 struct sk_buff
*orig_skb
= skb
;
682 struct mwifiex_txinfo
*tx_info
, *orig_tx_info
;
684 skb
= skb_clone(skb
, GFP_ATOMIC
);
689 spin_lock_irqsave(&priv
->ack_status_lock
, flags
);
690 id
= idr_alloc(&priv
->ack_status_frames
, orig_skb
,
691 1, 0xff, GFP_ATOMIC
);
692 spin_unlock_irqrestore(&priv
->ack_status_lock
, flags
);
695 tx_info
= MWIFIEX_SKB_TXCB(skb
);
696 tx_info
->ack_frame_id
= id
;
697 tx_info
->flags
|= flag
;
698 orig_tx_info
= MWIFIEX_SKB_TXCB(orig_skb
);
699 orig_tx_info
->ack_frame_id
= id
;
700 orig_tx_info
->flags
|= flag
;
702 if (flag
== MWIFIEX_BUF_FLAG_ACTION_TX_STATUS
&& cookie
)
703 orig_tx_info
->cookie
= *cookie
;
705 } else if (skb_shared(skb
)) {
712 /* couldn't clone -- lose tx status ... */
720 * CFG802.11 network device handler for data transmission.
723 mwifiex_hard_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
725 struct mwifiex_private
*priv
= mwifiex_netdev_get_priv(dev
);
726 struct sk_buff
*new_skb
;
727 struct mwifiex_txinfo
*tx_info
;
730 mwifiex_dbg(priv
->adapter
, DATA
,
731 "data: %lu BSS(%d-%d): Data <= kernel\n",
732 jiffies
, priv
->bss_type
, priv
->bss_num
);
734 if (priv
->adapter
->surprise_removed
) {
736 priv
->stats
.tx_dropped
++;
739 if (!skb
->len
|| (skb
->len
> ETH_FRAME_LEN
)) {
740 mwifiex_dbg(priv
->adapter
, ERROR
,
741 "Tx: bad skb len %d\n", skb
->len
);
743 priv
->stats
.tx_dropped
++;
746 if (skb_headroom(skb
) < MWIFIEX_MIN_DATA_HEADER_LEN
) {
747 mwifiex_dbg(priv
->adapter
, DATA
,
748 "data: Tx: insufficient skb headroom %d\n",
750 /* Insufficient skb headroom - allocate a new skb */
752 skb_realloc_headroom(skb
, MWIFIEX_MIN_DATA_HEADER_LEN
);
753 if (unlikely(!new_skb
)) {
754 mwifiex_dbg(priv
->adapter
, ERROR
,
755 "Tx: cannot alloca new_skb\n");
757 priv
->stats
.tx_dropped
++;
762 mwifiex_dbg(priv
->adapter
, INFO
,
763 "info: new skb headroomd %d\n",
767 tx_info
= MWIFIEX_SKB_TXCB(skb
);
768 memset(tx_info
, 0, sizeof(*tx_info
));
769 tx_info
->bss_num
= priv
->bss_num
;
770 tx_info
->bss_type
= priv
->bss_type
;
771 tx_info
->pkt_len
= skb
->len
;
773 multicast
= is_multicast_ether_addr(skb
->data
);
775 if (unlikely(!multicast
&& skb
->sk
&&
776 skb_shinfo(skb
)->tx_flags
& SKBTX_WIFI_STATUS
&&
777 priv
->adapter
->fw_api_ver
== MWIFIEX_FW_V15
))
778 skb
= mwifiex_clone_skb_for_tx_status(priv
,
780 MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS
, NULL
);
782 /* Record the current time the packet was queued; used to
783 * determine the amount of time the packet was queued in
784 * the driver before it was sent to the firmware.
785 * The delay is then sent along with the packet to the
786 * firmware for aggregate delay calculation for stats and
787 * MSDU lifetime expiry.
789 __net_timestamp(skb
);
791 if (ISSUPP_TDLS_ENABLED(priv
->adapter
->fw_cap_info
) &&
792 priv
->bss_type
== MWIFIEX_BSS_TYPE_STA
&&
793 !ether_addr_equal_unaligned(priv
->cfg_bssid
, skb
->data
)) {
794 if (priv
->adapter
->auto_tdls
&& priv
->check_tdls_tx
)
795 mwifiex_tdls_check_tx(priv
, skb
);
798 mwifiex_queue_tx_pkt(priv
, skb
);
804 * CFG802.11 network device handler for setting MAC address.
807 mwifiex_set_mac_address(struct net_device
*dev
, void *addr
)
809 struct mwifiex_private
*priv
= mwifiex_netdev_get_priv(dev
);
810 struct sockaddr
*hw_addr
= addr
;
813 memcpy(priv
->curr_addr
, hw_addr
->sa_data
, ETH_ALEN
);
815 /* Send request to firmware */
816 ret
= mwifiex_send_cmd(priv
, HostCmd_CMD_802_11_MAC_ADDRESS
,
817 HostCmd_ACT_GEN_SET
, 0, NULL
, true);
820 memcpy(priv
->netdev
->dev_addr
, priv
->curr_addr
, ETH_ALEN
);
822 mwifiex_dbg(priv
->adapter
, ERROR
,
823 "set mac address failed: ret=%d\n", ret
);
825 memcpy(dev
->dev_addr
, priv
->curr_addr
, ETH_ALEN
);
831 * CFG802.11 network device handler for setting multicast list.
833 static void mwifiex_set_multicast_list(struct net_device
*dev
)
835 struct mwifiex_private
*priv
= mwifiex_netdev_get_priv(dev
);
836 struct mwifiex_multicast_list mcast_list
;
838 if (dev
->flags
& IFF_PROMISC
) {
839 mcast_list
.mode
= MWIFIEX_PROMISC_MODE
;
840 } else if (dev
->flags
& IFF_ALLMULTI
||
841 netdev_mc_count(dev
) > MWIFIEX_MAX_MULTICAST_LIST_SIZE
) {
842 mcast_list
.mode
= MWIFIEX_ALL_MULTI_MODE
;
844 mcast_list
.mode
= MWIFIEX_MULTICAST_MODE
;
845 mcast_list
.num_multicast_addr
=
846 mwifiex_copy_mcast_addr(&mcast_list
, dev
);
848 mwifiex_request_set_multicast_list(priv
, &mcast_list
);
852 * CFG802.11 network device handler for transmission timeout.
855 mwifiex_tx_timeout(struct net_device
*dev
)
857 struct mwifiex_private
*priv
= mwifiex_netdev_get_priv(dev
);
859 priv
->num_tx_timeout
++;
860 priv
->tx_timeout_cnt
++;
861 mwifiex_dbg(priv
->adapter
, ERROR
,
862 "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n",
863 jiffies
, priv
->tx_timeout_cnt
, priv
->bss_type
,
865 mwifiex_set_trans_start(dev
);
867 if (priv
->tx_timeout_cnt
> TX_TIMEOUT_THRESHOLD
&&
868 priv
->adapter
->if_ops
.card_reset
) {
869 mwifiex_dbg(priv
->adapter
, ERROR
,
870 "tx_timeout_cnt exceeds threshold.\t"
871 "Triggering card reset!\n");
872 priv
->adapter
->if_ops
.card_reset(priv
->adapter
);
876 void mwifiex_drv_info_dump(struct mwifiex_adapter
*adapter
)
879 char drv_version
[64];
880 struct usb_card_rec
*cardp
;
881 struct sdio_mmc_card
*sdio_card
;
882 struct mwifiex_private
*priv
;
884 struct netdev_queue
*txq
;
885 struct mwifiex_debug_info
*debug_info
;
887 if (adapter
->drv_info_dump
) {
888 vfree(adapter
->drv_info_dump
);
889 adapter
->drv_info_dump
= NULL
;
890 adapter
->drv_info_size
= 0;
893 mwifiex_dbg(adapter
, MSG
, "===mwifiex driverinfo dump start===\n");
895 adapter
->drv_info_dump
= vzalloc(MWIFIEX_DRV_INFO_SIZE_MAX
);
897 if (!adapter
->drv_info_dump
)
900 p
= (char *)(adapter
->drv_info_dump
);
901 p
+= sprintf(p
, "driver_name = " "\"mwifiex\"\n");
903 mwifiex_drv_get_driver_version(adapter
, drv_version
,
904 sizeof(drv_version
) - 1);
905 p
+= sprintf(p
, "driver_version = %s\n", drv_version
);
907 if (adapter
->iface_type
== MWIFIEX_USB
) {
908 cardp
= (struct usb_card_rec
*)adapter
->card
;
909 p
+= sprintf(p
, "tx_cmd_urb_pending = %d\n",
910 atomic_read(&cardp
->tx_cmd_urb_pending
));
911 p
+= sprintf(p
, "tx_data_urb_pending = %d\n",
912 atomic_read(&cardp
->tx_data_urb_pending
));
913 p
+= sprintf(p
, "rx_cmd_urb_pending = %d\n",
914 atomic_read(&cardp
->rx_cmd_urb_pending
));
915 p
+= sprintf(p
, "rx_data_urb_pending = %d\n",
916 atomic_read(&cardp
->rx_data_urb_pending
));
919 p
+= sprintf(p
, "tx_pending = %d\n",
920 atomic_read(&adapter
->tx_pending
));
921 p
+= sprintf(p
, "rx_pending = %d\n",
922 atomic_read(&adapter
->rx_pending
));
924 if (adapter
->iface_type
== MWIFIEX_SDIO
) {
925 sdio_card
= (struct sdio_mmc_card
*)adapter
->card
;
926 p
+= sprintf(p
, "\nmp_rd_bitmap=0x%x curr_rd_port=0x%x\n",
927 sdio_card
->mp_rd_bitmap
, sdio_card
->curr_rd_port
);
928 p
+= sprintf(p
, "mp_wr_bitmap=0x%x curr_wr_port=0x%x\n",
929 sdio_card
->mp_wr_bitmap
, sdio_card
->curr_wr_port
);
932 for (i
= 0; i
< adapter
->priv_num
; i
++) {
933 if (!adapter
->priv
[i
] || !adapter
->priv
[i
]->netdev
)
935 priv
= adapter
->priv
[i
];
936 p
+= sprintf(p
, "\n[interface : \"%s\"]\n",
938 p
+= sprintf(p
, "wmm_tx_pending[0] = %d\n",
939 atomic_read(&priv
->wmm_tx_pending
[0]));
940 p
+= sprintf(p
, "wmm_tx_pending[1] = %d\n",
941 atomic_read(&priv
->wmm_tx_pending
[1]));
942 p
+= sprintf(p
, "wmm_tx_pending[2] = %d\n",
943 atomic_read(&priv
->wmm_tx_pending
[2]));
944 p
+= sprintf(p
, "wmm_tx_pending[3] = %d\n",
945 atomic_read(&priv
->wmm_tx_pending
[3]));
946 p
+= sprintf(p
, "media_state=\"%s\"\n", !priv
->media_connected
?
947 "Disconnected" : "Connected");
948 p
+= sprintf(p
, "carrier %s\n", (netif_carrier_ok(priv
->netdev
)
950 for (idx
= 0; idx
< priv
->netdev
->num_tx_queues
; idx
++) {
951 txq
= netdev_get_tx_queue(priv
->netdev
, idx
);
952 p
+= sprintf(p
, "tx queue %d:%s ", idx
,
953 netif_tx_queue_stopped(txq
) ?
954 "stopped" : "started");
956 p
+= sprintf(p
, "\n%s: num_tx_timeout = %d\n",
957 priv
->netdev
->name
, priv
->num_tx_timeout
);
960 if (adapter
->iface_type
== MWIFIEX_SDIO
) {
961 p
+= sprintf(p
, "\n=== SDIO register dump===\n");
962 if (adapter
->if_ops
.reg_dump
)
963 p
+= adapter
->if_ops
.reg_dump(adapter
, p
);
966 p
+= sprintf(p
, "\n=== more debug information\n");
967 debug_info
= kzalloc(sizeof(*debug_info
), GFP_KERNEL
);
969 for (i
= 0; i
< adapter
->priv_num
; i
++) {
970 if (!adapter
->priv
[i
] || !adapter
->priv
[i
]->netdev
)
972 priv
= adapter
->priv
[i
];
973 mwifiex_get_debug_info(priv
, debug_info
);
974 p
+= mwifiex_debug_info_to_buffer(priv
, p
, debug_info
);
980 adapter
->drv_info_size
= p
- adapter
->drv_info_dump
;
981 mwifiex_dbg(adapter
, MSG
, "===mwifiex driverinfo dump end===\n");
983 EXPORT_SYMBOL_GPL(mwifiex_drv_info_dump
);
985 void mwifiex_upload_device_dump(struct mwifiex_adapter
*adapter
)
987 u8 idx
, *dump_data
, *fw_dump_ptr
;
990 dump_len
= (strlen("========Start dump driverinfo========\n") +
991 adapter
->drv_info_size
+
992 strlen("\n========End dump========\n"));
994 for (idx
= 0; idx
< adapter
->num_mem_types
; idx
++) {
995 struct memory_type_mapping
*entry
=
996 &adapter
->mem_type_mapping_tbl
[idx
];
998 if (entry
->mem_ptr
) {
999 dump_len
+= (strlen("========Start dump ") +
1000 strlen(entry
->mem_name
) +
1001 strlen("========\n") +
1002 (entry
->mem_size
+ 1) +
1003 strlen("\n========End dump========\n"));
1007 dump_data
= vzalloc(dump_len
+ 1);
1011 fw_dump_ptr
= dump_data
;
1013 /* Dump all the memory data into single file, a userspace script will
1014 * be used to split all the memory data to multiple files
1016 mwifiex_dbg(adapter
, MSG
,
1017 "== mwifiex dump information to /sys/class/devcoredump start");
1019 strcpy(fw_dump_ptr
, "========Start dump driverinfo========\n");
1020 fw_dump_ptr
+= strlen("========Start dump driverinfo========\n");
1021 memcpy(fw_dump_ptr
, adapter
->drv_info_dump
, adapter
->drv_info_size
);
1022 fw_dump_ptr
+= adapter
->drv_info_size
;
1023 strcpy(fw_dump_ptr
, "\n========End dump========\n");
1024 fw_dump_ptr
+= strlen("\n========End dump========\n");
1026 for (idx
= 0; idx
< adapter
->num_mem_types
; idx
++) {
1027 struct memory_type_mapping
*entry
=
1028 &adapter
->mem_type_mapping_tbl
[idx
];
1030 if (entry
->mem_ptr
) {
1031 strcpy(fw_dump_ptr
, "========Start dump ");
1032 fw_dump_ptr
+= strlen("========Start dump ");
1034 strcpy(fw_dump_ptr
, entry
->mem_name
);
1035 fw_dump_ptr
+= strlen(entry
->mem_name
);
1037 strcpy(fw_dump_ptr
, "========\n");
1038 fw_dump_ptr
+= strlen("========\n");
1040 memcpy(fw_dump_ptr
, entry
->mem_ptr
, entry
->mem_size
);
1041 fw_dump_ptr
+= entry
->mem_size
;
1043 strcpy(fw_dump_ptr
, "\n========End dump========\n");
1044 fw_dump_ptr
+= strlen("\n========End dump========\n");
1048 /* device dump data will be free in device coredump release function
1051 dev_coredumpv(adapter
->dev
, dump_data
, dump_len
, GFP_KERNEL
);
1052 mwifiex_dbg(adapter
, MSG
,
1053 "== mwifiex dump information to /sys/class/devcoredump end");
1056 for (idx
= 0; idx
< adapter
->num_mem_types
; idx
++) {
1057 struct memory_type_mapping
*entry
=
1058 &adapter
->mem_type_mapping_tbl
[idx
];
1060 if (entry
->mem_ptr
) {
1061 vfree(entry
->mem_ptr
);
1062 entry
->mem_ptr
= NULL
;
1064 entry
->mem_size
= 0;
1067 if (adapter
->drv_info_dump
) {
1068 vfree(adapter
->drv_info_dump
);
1069 adapter
->drv_info_dump
= NULL
;
1070 adapter
->drv_info_size
= 0;
1073 EXPORT_SYMBOL_GPL(mwifiex_upload_device_dump
);
1076 * CFG802.11 network device handler for statistics retrieval.
1078 static struct net_device_stats
*mwifiex_get_stats(struct net_device
*dev
)
1080 struct mwifiex_private
*priv
= mwifiex_netdev_get_priv(dev
);
1082 return &priv
->stats
;
1086 mwifiex_netdev_select_wmm_queue(struct net_device
*dev
, struct sk_buff
*skb
,
1087 void *accel_priv
, select_queue_fallback_t fallback
)
1089 skb
->priority
= cfg80211_classify8021d(skb
, NULL
);
1090 return mwifiex_1d_to_wmm_queue
[skb
->priority
];
1093 /* Network device handlers */
1094 static const struct net_device_ops mwifiex_netdev_ops
= {
1095 .ndo_open
= mwifiex_open
,
1096 .ndo_stop
= mwifiex_close
,
1097 .ndo_start_xmit
= mwifiex_hard_start_xmit
,
1098 .ndo_set_mac_address
= mwifiex_set_mac_address
,
1099 .ndo_tx_timeout
= mwifiex_tx_timeout
,
1100 .ndo_get_stats
= mwifiex_get_stats
,
1101 .ndo_set_rx_mode
= mwifiex_set_multicast_list
,
1102 .ndo_select_queue
= mwifiex_netdev_select_wmm_queue
,
1106 * This function initializes the private structure parameters.
1108 * The following wait queues are initialized -
1109 * - IOCTL wait queue
1110 * - Command wait queue
1111 * - Statistics wait queue
1113 * ...and the following default parameters are set -
1114 * - Current key index : Set to 0
1115 * - Rate index : Set to auto
1116 * - Media connected : Set to disconnected
1117 * - Adhoc link sensed : Set to false
1118 * - Nick name : Set to null
1119 * - Number of Tx timeout : Set to 0
1120 * - Device address : Set to current address
1121 * - Rx histogram statistc : Set to 0
1123 * In addition, the CFG80211 work queue is also created.
1125 void mwifiex_init_priv_params(struct mwifiex_private
*priv
,
1126 struct net_device
*dev
)
1128 dev
->netdev_ops
= &mwifiex_netdev_ops
;
1129 dev
->destructor
= free_netdev
;
1130 /* Initialize private structure */
1131 priv
->current_key_index
= 0;
1132 priv
->media_connected
= false;
1133 memset(priv
->mgmt_ie
, 0,
1134 sizeof(struct mwifiex_ie
) * MAX_MGMT_IE_INDEX
);
1135 priv
->beacon_idx
= MWIFIEX_AUTO_IDX_MASK
;
1136 priv
->proberesp_idx
= MWIFIEX_AUTO_IDX_MASK
;
1137 priv
->assocresp_idx
= MWIFIEX_AUTO_IDX_MASK
;
1138 priv
->gen_idx
= MWIFIEX_AUTO_IDX_MASK
;
1139 priv
->num_tx_timeout
= 0;
1140 ether_addr_copy(priv
->curr_addr
, priv
->adapter
->perm_addr
);
1141 memcpy(dev
->dev_addr
, priv
->curr_addr
, ETH_ALEN
);
1143 if (GET_BSS_ROLE(priv
) == MWIFIEX_BSS_ROLE_STA
||
1144 GET_BSS_ROLE(priv
) == MWIFIEX_BSS_ROLE_UAP
) {
1145 priv
->hist_data
= kmalloc(sizeof(*priv
->hist_data
), GFP_KERNEL
);
1146 if (priv
->hist_data
)
1147 mwifiex_hist_data_reset(priv
);
1152 * This function check if command is pending.
1154 int is_command_pending(struct mwifiex_adapter
*adapter
)
1156 unsigned long flags
;
1157 int is_cmd_pend_q_empty
;
1159 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
1160 is_cmd_pend_q_empty
= list_empty(&adapter
->cmd_pending_q
);
1161 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
1163 return !is_cmd_pend_q_empty
;
1167 * This is the RX work queue function.
1169 * It handles the RX operations.
1171 static void mwifiex_rx_work_queue(struct work_struct
*work
)
1173 struct mwifiex_adapter
*adapter
=
1174 container_of(work
, struct mwifiex_adapter
, rx_work
);
1176 if (adapter
->surprise_removed
)
1178 mwifiex_process_rx(adapter
);
1182 * This is the main work queue function.
1184 * It handles the main process, which in turn handles the complete
1185 * driver operations.
1187 static void mwifiex_main_work_queue(struct work_struct
*work
)
1189 struct mwifiex_adapter
*adapter
=
1190 container_of(work
, struct mwifiex_adapter
, main_work
);
1192 if (adapter
->surprise_removed
)
1194 mwifiex_main_process(adapter
);
1198 * This function adds the card.
1200 * This function follows the following major steps to set up the device -
1201 * - Initialize software. This includes probing the card, registering
1202 * the interface operations table, and allocating/initializing the
1204 * - Set up the netlink socket
1205 * - Create and start the main work queue
1206 * - Register the device
1207 * - Initialize firmware and hardware
1208 * - Add logical interfaces
1211 mwifiex_add_card(void *card
, struct semaphore
*sem
,
1212 struct mwifiex_if_ops
*if_ops
, u8 iface_type
)
1214 struct mwifiex_adapter
*adapter
;
1216 if (down_interruptible(sem
))
1219 if (mwifiex_register(card
, if_ops
, (void **)&adapter
)) {
1220 pr_err("%s: software init failed\n", __func__
);
1224 adapter
->iface_type
= iface_type
;
1225 adapter
->card_sem
= sem
;
1227 adapter
->hw_status
= MWIFIEX_HW_STATUS_INITIALIZING
;
1228 adapter
->surprise_removed
= false;
1229 init_waitqueue_head(&adapter
->init_wait_q
);
1230 adapter
->is_suspended
= false;
1231 adapter
->hs_activated
= false;
1232 init_waitqueue_head(&adapter
->hs_activate_wait_q
);
1233 init_waitqueue_head(&adapter
->cmd_wait_q
.wait
);
1234 adapter
->cmd_wait_q
.status
= 0;
1235 adapter
->scan_wait_q_woken
= false;
1237 if ((num_possible_cpus() > 1) || adapter
->iface_type
== MWIFIEX_USB
) {
1238 adapter
->rx_work_enabled
= true;
1239 pr_notice("rx work enabled, cpus %d\n", num_possible_cpus());
1242 adapter
->workqueue
=
1243 alloc_workqueue("MWIFIEX_WORK_QUEUE",
1244 WQ_HIGHPRI
| WQ_MEM_RECLAIM
| WQ_UNBOUND
, 1);
1245 if (!adapter
->workqueue
)
1248 INIT_WORK(&adapter
->main_work
, mwifiex_main_work_queue
);
1250 if (adapter
->rx_work_enabled
) {
1251 adapter
->rx_workqueue
= alloc_workqueue("MWIFIEX_RX_WORK_QUEUE",
1255 if (!adapter
->rx_workqueue
)
1258 INIT_WORK(&adapter
->rx_work
, mwifiex_rx_work_queue
);
1261 /* Register the device. Fill up the private data structure with relevant
1262 information from the card. */
1263 if (adapter
->if_ops
.register_dev(adapter
)) {
1264 pr_err("%s: failed to register mwifiex device\n", __func__
);
1265 goto err_registerdev
;
1268 if (mwifiex_init_hw_fw(adapter
)) {
1269 pr_err("%s: firmware init failed\n", __func__
);
1276 pr_debug("info: %s: unregister device\n", __func__
);
1277 if (adapter
->if_ops
.unregister_dev
)
1278 adapter
->if_ops
.unregister_dev(adapter
);
1279 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_READY
) {
1280 pr_debug("info: %s: shutdown mwifiex\n", __func__
);
1281 adapter
->init_wait_q_woken
= false;
1283 if (mwifiex_shutdown_drv(adapter
) == -EINPROGRESS
)
1284 wait_event_interruptible(adapter
->init_wait_q
,
1285 adapter
->init_wait_q_woken
);
1288 adapter
->surprise_removed
= true;
1289 mwifiex_terminate_workqueue(adapter
);
1291 mwifiex_free_adapter(adapter
);
1299 EXPORT_SYMBOL_GPL(mwifiex_add_card
);
1302 * This function removes the card.
1304 * This function follows the following major steps to remove the device -
1305 * - Stop data traffic
1306 * - Shutdown firmware
1307 * - Remove the logical interfaces
1308 * - Terminate the work queue
1309 * - Unregister the device
1310 * - Free the adapter structure
1312 int mwifiex_remove_card(struct mwifiex_adapter
*adapter
, struct semaphore
*sem
)
1314 struct mwifiex_private
*priv
= NULL
;
1317 if (down_interruptible(sem
))
1323 /* We can no longer handle interrupts once we start doing the teardown
1325 if (adapter
->if_ops
.disable_int
)
1326 adapter
->if_ops
.disable_int(adapter
);
1328 adapter
->surprise_removed
= true;
1330 mwifiex_terminate_workqueue(adapter
);
1333 for (i
= 0; i
< adapter
->priv_num
; i
++) {
1334 priv
= adapter
->priv
[i
];
1335 if (priv
&& priv
->netdev
) {
1336 mwifiex_stop_net_dev_queue(priv
->netdev
, adapter
);
1337 if (netif_carrier_ok(priv
->netdev
))
1338 netif_carrier_off(priv
->netdev
);
1342 mwifiex_dbg(adapter
, CMD
,
1343 "cmd: calling mwifiex_shutdown_drv...\n");
1344 adapter
->init_wait_q_woken
= false;
1346 if (mwifiex_shutdown_drv(adapter
) == -EINPROGRESS
)
1347 wait_event_interruptible(adapter
->init_wait_q
,
1348 adapter
->init_wait_q_woken
);
1349 mwifiex_dbg(adapter
, CMD
,
1350 "cmd: mwifiex_shutdown_drv done\n");
1351 if (atomic_read(&adapter
->rx_pending
) ||
1352 atomic_read(&adapter
->tx_pending
) ||
1353 atomic_read(&adapter
->cmd_pending
)) {
1354 mwifiex_dbg(adapter
, ERROR
,
1355 "rx_pending=%d, tx_pending=%d,\t"
1357 atomic_read(&adapter
->rx_pending
),
1358 atomic_read(&adapter
->tx_pending
),
1359 atomic_read(&adapter
->cmd_pending
));
1362 for (i
= 0; i
< adapter
->priv_num
; i
++) {
1363 priv
= adapter
->priv
[i
];
1370 priv
->wdev
.iftype
!= NL80211_IFTYPE_UNSPECIFIED
)
1371 mwifiex_del_virtual_intf(adapter
->wiphy
, &priv
->wdev
);
1375 wiphy_unregister(adapter
->wiphy
);
1376 wiphy_free(adapter
->wiphy
);
1378 /* Unregister device */
1379 mwifiex_dbg(adapter
, INFO
,
1380 "info: unregister device\n");
1381 if (adapter
->if_ops
.unregister_dev
)
1382 adapter
->if_ops
.unregister_dev(adapter
);
1383 /* Free adapter structure */
1384 mwifiex_dbg(adapter
, INFO
,
1385 "info: free adapter\n");
1386 mwifiex_free_adapter(adapter
);
1393 EXPORT_SYMBOL_GPL(mwifiex_remove_card
);
1396 * This function initializes the module.
1398 * The debug FS is also initialized if configured.
1401 mwifiex_init_module(void)
1403 #ifdef CONFIG_DEBUG_FS
1404 mwifiex_debugfs_init();
1410 * This function cleans up the module.
1412 * The debug FS is removed if available.
1415 mwifiex_cleanup_module(void)
1417 #ifdef CONFIG_DEBUG_FS
1418 mwifiex_debugfs_remove();
1422 module_init(mwifiex_init_module
);
1423 module_exit(mwifiex_cleanup_module
);
1425 MODULE_AUTHOR("Marvell International Ltd.");
1426 MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION
);
1427 MODULE_VERSION(VERSION
);
1428 MODULE_LICENSE("GPL v2");