2 * Marvell Wireless LAN device driver: major functions
4 * Copyright (C) 2011, 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 const char driver_version[] = "mwifiex " VERSION " (%s) ";
30 * This function registers the device and performs all the necessary
33 * The following initialization operations are performed -
34 * - Allocate adapter structure
35 * - Save interface specific operations table in adapter
36 * - Call interface specific initialization routine
37 * - Allocate private structures
38 * - Set default adapter structure parameters
41 * In case of any errors during inittialization, this function also ensures
42 * proper cleanup before exiting.
44 static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
47 struct mwifiex_adapter *adapter;
50 adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL);
57 /* Save interface specific operations in adapter */
58 memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops));
60 /* card specific initialization has been deferred until now .. */
61 if (adapter->if_ops.init_if(adapter))
64 adapter->priv_num = 0;
66 /* Allocate memory for private structure */
67 adapter->priv[0] = kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL);
68 if (!adapter->priv[0]) {
70 "%s: failed to alloc priv[0]\n", __func__);
76 adapter->priv[0]->adapter = adapter;
77 mwifiex_init_lock_list(adapter);
79 init_timer(&adapter->cmd_timer);
80 adapter->cmd_timer.function = mwifiex_cmd_timeout_func;
81 adapter->cmd_timer.data = (unsigned long) adapter;
86 dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n");
88 for (i = 0; i < adapter->priv_num; i++)
89 kfree(adapter->priv[i]);
97 * This function unregisters the device and performs all the necessary
100 * The following cleanup operations are performed -
102 * - Free beacon buffers
103 * - Free private structures
104 * - Free adapter structure
106 static int mwifiex_unregister(struct mwifiex_adapter *adapter)
110 del_timer(&adapter->cmd_timer);
112 /* Free private structures */
113 for (i = 0; i < adapter->priv_num; i++) {
114 if (adapter->priv[i]) {
115 mwifiex_free_curr_bcn(adapter->priv[i]);
116 kfree(adapter->priv[i]);
127 * This function is the main procedure of the driver and handles various driver
128 * operations. It runs in a loop and provides the core functionalities.
130 * The main responsibilities of this function are -
131 * - Ensure concurrency control
132 * - Handle pending interrupts and call interrupt handlers
133 * - Wake up the card if required
134 * - Handle command responses and call response handlers
135 * - Handle events and call event handlers
136 * - Execute pending commands
137 * - Transmit pending data packets
139 int mwifiex_main_process(struct mwifiex_adapter *adapter)
144 spin_lock_irqsave(&adapter->main_proc_lock, flags);
146 /* Check if already processing */
147 if (adapter->mwifiex_processing) {
148 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
151 adapter->mwifiex_processing = true;
152 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
156 if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) ||
157 (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY))
160 /* Handle pending interrupt if any */
161 if (adapter->int_status) {
162 if (adapter->hs_activated)
163 mwifiex_process_hs_config(adapter);
164 adapter->if_ops.process_int_status(adapter);
167 /* Need to wake up the card ? */
168 if ((adapter->ps_state == PS_STATE_SLEEP) &&
169 (adapter->pm_wakeup_card_req &&
170 !adapter->pm_wakeup_fw_try) &&
171 (is_command_pending(adapter) ||
172 !mwifiex_wmm_lists_empty(adapter))) {
173 adapter->pm_wakeup_fw_try = true;
174 adapter->if_ops.wakeup(adapter);
177 if (IS_CARD_RX_RCVD(adapter)) {
178 adapter->pm_wakeup_fw_try = false;
179 if (adapter->ps_state == PS_STATE_SLEEP)
180 adapter->ps_state = PS_STATE_AWAKE;
182 /* We have tried to wakeup the card already */
183 if (adapter->pm_wakeup_fw_try)
185 if (adapter->ps_state != PS_STATE_AWAKE ||
186 adapter->tx_lock_flag)
189 if ((adapter->scan_processing &&
190 !adapter->scan_delay_cnt) || adapter->data_sent ||
191 mwifiex_wmm_lists_empty(adapter)) {
192 if (adapter->cmd_sent || adapter->curr_cmd ||
193 (!is_command_pending(adapter)))
198 /* Check for Cmd Resp */
199 if (adapter->cmd_resp_received) {
200 adapter->cmd_resp_received = false;
201 mwifiex_process_cmdresp(adapter);
203 /* call mwifiex back when init_fw is done */
204 if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) {
205 adapter->hw_status = MWIFIEX_HW_STATUS_READY;
206 mwifiex_init_fw_complete(adapter);
210 /* Check for event */
211 if (adapter->event_received) {
212 adapter->event_received = false;
213 mwifiex_process_event(adapter);
216 /* Check if we need to confirm Sleep Request
217 received previously */
218 if (adapter->ps_state == PS_STATE_PRE_SLEEP) {
219 if (!adapter->cmd_sent && !adapter->curr_cmd)
220 mwifiex_check_ps_cond(adapter);
223 /* * The ps_state may have been changed during processing of
224 * Sleep Request event.
226 if ((adapter->ps_state == PS_STATE_SLEEP) ||
227 (adapter->ps_state == PS_STATE_PRE_SLEEP) ||
228 (adapter->ps_state == PS_STATE_SLEEP_CFM) ||
229 adapter->tx_lock_flag)
232 if (!adapter->cmd_sent && !adapter->curr_cmd) {
233 if (mwifiex_exec_next_cmd(adapter) == -1) {
239 if ((!adapter->scan_processing || adapter->scan_delay_cnt) &&
240 !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) {
241 mwifiex_wmm_process_tx(adapter);
242 if (adapter->hs_activated) {
243 adapter->is_hs_configured = false;
244 mwifiex_hs_activated_event
246 (adapter, MWIFIEX_BSS_ROLE_ANY),
251 if (adapter->delay_null_pkt && !adapter->cmd_sent &&
252 !adapter->curr_cmd && !is_command_pending(adapter) &&
253 mwifiex_wmm_lists_empty(adapter)) {
254 if (!mwifiex_send_null_packet
255 (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
256 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
257 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) {
258 adapter->delay_null_pkt = false;
259 adapter->ps_state = PS_STATE_SLEEP;
265 if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter))
268 spin_lock_irqsave(&adapter->main_proc_lock, flags);
269 adapter->mwifiex_processing = false;
270 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
273 if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING)
274 mwifiex_shutdown_drv(adapter);
277 EXPORT_SYMBOL_GPL(mwifiex_main_process);
280 * This function frees the adapter structure.
282 * Additionally, this closes the netlink socket, frees the timers
283 * and private structures.
285 static void mwifiex_free_adapter(struct mwifiex_adapter *adapter)
288 pr_err("%s: adapter is NULL\n", __func__);
292 mwifiex_unregister(adapter);
293 pr_debug("info: %s: free adapter\n", __func__);
297 * This function gets firmware and initializes it.
299 * The main initialization steps followed are -
300 * - Download the correct firmware to card
301 * - Issue the init commands to firmware
303 static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
307 struct mwifiex_private *priv;
308 struct mwifiex_adapter *adapter = context;
309 struct mwifiex_fw_image fw;
312 dev_err(adapter->dev,
313 "Failed to get firmware %s\n", adapter->fw_name);
317 memset(&fw, 0, sizeof(struct mwifiex_fw_image));
318 adapter->firmware = firmware;
319 fw.fw_buf = (u8 *) adapter->firmware->data;
320 fw.fw_len = adapter->firmware->size;
322 ret = mwifiex_dnld_fw(adapter, &fw);
326 dev_notice(adapter->dev, "WLAN FW is active\n");
328 adapter->init_wait_q_woken = false;
329 ret = mwifiex_init_fw(adapter);
333 adapter->hw_status = MWIFIEX_HW_STATUS_READY;
336 /* Wait for mwifiex_init to complete */
337 wait_event_interruptible(adapter->init_wait_q,
338 adapter->init_wait_q_woken);
339 if (adapter->hw_status != MWIFIEX_HW_STATUS_READY)
342 priv = adapter->priv[0];
343 if (mwifiex_register_cfg80211(priv) != 0) {
344 dev_err(adapter->dev, "cannot register with cfg80211\n");
349 /* Create station interface by default */
350 if (!mwifiex_add_virtual_intf(priv->wdev->wiphy, "mlan%d",
351 NL80211_IFTYPE_STATION, NULL, NULL)) {
352 dev_err(adapter->dev, "cannot create default STA interface\n");
357 mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
358 dev_notice(adapter->dev, "driver_version = %s\n", fmt);
362 mwifiex_del_virtual_intf(priv->wdev->wiphy, priv->netdev);
365 pr_debug("info: %s: unregister device\n", __func__);
366 adapter->if_ops.unregister_dev(adapter);
368 release_firmware(adapter->firmware);
369 complete(&adapter->fw_load);
374 * This function initializes the hardware and gets firmware.
376 static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter)
380 init_completion(&adapter->fw_load);
381 ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name,
382 adapter->dev, GFP_KERNEL, adapter,
385 dev_err(adapter->dev,
386 "request_firmware_nowait() returned error %d\n", ret);
391 * CFG802.11 network device handler for open.
393 * Starts the data queue.
396 mwifiex_open(struct net_device *dev)
398 netif_tx_start_all_queues(dev);
403 * CFG802.11 network device handler for close.
406 mwifiex_close(struct net_device *dev)
408 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
410 if (priv->scan_request) {
411 dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n");
412 cfg80211_scan_done(priv->scan_request, 1);
413 priv->scan_request = NULL;
414 priv->scan_aborting = true;
421 * Add buffer into wmm tx queue and queue work to transmit it.
423 int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb)
425 struct netdev_queue *txq;
426 int index = mwifiex_1d_to_wmm_queue[skb->priority];
428 if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) {
429 txq = netdev_get_tx_queue(priv->netdev, index);
430 if (!netif_tx_queue_stopped(txq)) {
431 netif_tx_stop_queue(txq);
432 dev_dbg(priv->adapter->dev, "stop queue: %d\n", index);
436 atomic_inc(&priv->adapter->tx_pending);
437 mwifiex_wmm_add_buf_txqueue(priv, skb);
439 if (priv->adapter->scan_delay_cnt)
440 atomic_set(&priv->adapter->is_tx_received, true);
442 queue_work(priv->adapter->workqueue, &priv->adapter->main_work);
448 * CFG802.11 network device handler for data transmission.
451 mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
453 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
454 struct sk_buff *new_skb;
455 struct mwifiex_txinfo *tx_info;
458 dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n",
459 jiffies, priv->bss_type, priv->bss_num);
461 if (priv->adapter->surprise_removed) {
463 priv->stats.tx_dropped++;
466 if (!skb->len || (skb->len > ETH_FRAME_LEN)) {
467 dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len);
469 priv->stats.tx_dropped++;
472 if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) {
473 dev_dbg(priv->adapter->dev,
474 "data: Tx: insufficient skb headroom %d\n",
476 /* Insufficient skb headroom - allocate a new skb */
478 skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
479 if (unlikely(!new_skb)) {
480 dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n");
482 priv->stats.tx_dropped++;
487 dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n",
491 tx_info = MWIFIEX_SKB_TXCB(skb);
492 tx_info->bss_num = priv->bss_num;
493 tx_info->bss_type = priv->bss_type;
495 /* Record the current time the packet was queued; used to
496 * determine the amount of time the packet was queued in
497 * the driver before it was sent to the firmware.
498 * The delay is then sent along with the packet to the
499 * firmware for aggregate delay calculation for stats and
500 * MSDU lifetime expiry.
502 do_gettimeofday(&tv);
503 skb->tstamp = timeval_to_ktime(tv);
505 mwifiex_queue_tx_pkt(priv, skb);
511 * CFG802.11 network device handler for setting MAC address.
514 mwifiex_set_mac_address(struct net_device *dev, void *addr)
516 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
517 struct sockaddr *hw_addr = addr;
520 memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN);
522 /* Send request to firmware */
523 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_MAC_ADDRESS,
524 HostCmd_ACT_GEN_SET, 0, NULL);
527 memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN);
529 dev_err(priv->adapter->dev,
530 "set mac address failed: ret=%d\n", ret);
532 memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN);
538 * CFG802.11 network device handler for setting multicast list.
540 static void mwifiex_set_multicast_list(struct net_device *dev)
542 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
543 struct mwifiex_multicast_list mcast_list;
545 if (dev->flags & IFF_PROMISC) {
546 mcast_list.mode = MWIFIEX_PROMISC_MODE;
547 } else if (dev->flags & IFF_ALLMULTI ||
548 netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) {
549 mcast_list.mode = MWIFIEX_ALL_MULTI_MODE;
551 mcast_list.mode = MWIFIEX_MULTICAST_MODE;
552 if (netdev_mc_count(dev))
553 mcast_list.num_multicast_addr =
554 mwifiex_copy_mcast_addr(&mcast_list, dev);
556 mwifiex_request_set_multicast_list(priv, &mcast_list);
560 * CFG802.11 network device handler for transmission timeout.
563 mwifiex_tx_timeout(struct net_device *dev)
565 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
567 priv->num_tx_timeout++;
568 priv->tx_timeout_cnt++;
569 dev_err(priv->adapter->dev,
570 "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n",
571 jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num);
572 mwifiex_set_trans_start(dev);
574 if (priv->adapter->if_ops.reg_dbg)
575 priv->adapter->if_ops.reg_dbg(priv->adapter);
577 if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD &&
578 priv->adapter->if_ops.card_reset) {
579 dev_err(priv->adapter->dev, "tx_timeout_cnt exceeds threshold. "
580 "Triggering card reset!\n");
581 priv->adapter->if_ops.card_reset(priv->adapter);
586 * CFG802.11 network device handler for statistics retrieval.
588 static struct net_device_stats *mwifiex_get_stats(struct net_device *dev)
590 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
596 mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb)
598 skb->priority = cfg80211_classify8021d(skb);
599 return mwifiex_1d_to_wmm_queue[skb->priority];
602 /* Network device handlers */
603 static const struct net_device_ops mwifiex_netdev_ops = {
604 .ndo_open = mwifiex_open,
605 .ndo_stop = mwifiex_close,
606 .ndo_start_xmit = mwifiex_hard_start_xmit,
607 .ndo_set_mac_address = mwifiex_set_mac_address,
608 .ndo_tx_timeout = mwifiex_tx_timeout,
609 .ndo_get_stats = mwifiex_get_stats,
610 .ndo_set_rx_mode = mwifiex_set_multicast_list,
611 .ndo_select_queue = mwifiex_netdev_select_wmm_queue,
615 * This function initializes the private structure parameters.
617 * The following wait queues are initialized -
619 * - Command wait queue
620 * - Statistics wait queue
622 * ...and the following default parameters are set -
623 * - Current key index : Set to 0
624 * - Rate index : Set to auto
625 * - Media connected : Set to disconnected
626 * - Adhoc link sensed : Set to false
627 * - Nick name : Set to null
628 * - Number of Tx timeout : Set to 0
629 * - Device address : Set to current address
631 * In addition, the CFG80211 work queue is also created.
633 void mwifiex_init_priv_params(struct mwifiex_private *priv,
634 struct net_device *dev)
636 dev->netdev_ops = &mwifiex_netdev_ops;
637 dev->destructor = free_netdev;
638 /* Initialize private structure */
639 priv->current_key_index = 0;
640 priv->media_connected = false;
641 memset(&priv->nick_name, 0, sizeof(priv->nick_name));
642 priv->num_tx_timeout = 0;
643 memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN);
647 * This function check if command is pending.
649 int is_command_pending(struct mwifiex_adapter *adapter)
652 int is_cmd_pend_q_empty;
654 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
655 is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q);
656 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
658 return !is_cmd_pend_q_empty;
662 * This is the main work queue function.
664 * It handles the main process, which in turn handles the complete
667 static void mwifiex_main_work_queue(struct work_struct *work)
669 struct mwifiex_adapter *adapter =
670 container_of(work, struct mwifiex_adapter, main_work);
672 if (adapter->surprise_removed)
674 mwifiex_main_process(adapter);
678 * This function cancels all works in the queue and destroys
679 * the main workqueue.
682 mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter)
684 flush_workqueue(adapter->workqueue);
685 destroy_workqueue(adapter->workqueue);
686 adapter->workqueue = NULL;
690 * This function adds the card.
692 * This function follows the following major steps to set up the device -
693 * - Initialize software. This includes probing the card, registering
694 * the interface operations table, and allocating/initializing the
696 * - Set up the netlink socket
697 * - Create and start the main work queue
698 * - Register the device
699 * - Initialize firmware and hardware
700 * - Add logical interfaces
703 mwifiex_add_card(void *card, struct semaphore *sem,
704 struct mwifiex_if_ops *if_ops, u8 iface_type)
706 struct mwifiex_adapter *adapter;
708 if (down_interruptible(sem))
711 if (mwifiex_register(card, if_ops, (void **)&adapter)) {
712 pr_err("%s: software init failed\n", __func__);
716 adapter->iface_type = iface_type;
718 adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
719 adapter->surprise_removed = false;
720 init_waitqueue_head(&adapter->init_wait_q);
721 adapter->is_suspended = false;
722 adapter->hs_activated = false;
723 init_waitqueue_head(&adapter->hs_activate_wait_q);
724 adapter->cmd_wait_q_required = false;
725 init_waitqueue_head(&adapter->cmd_wait_q.wait);
726 adapter->cmd_wait_q.status = 0;
727 adapter->scan_wait_q_woken = false;
729 adapter->workqueue = create_workqueue("MWIFIEX_WORK_QUEUE");
730 if (!adapter->workqueue)
733 INIT_WORK(&adapter->main_work, mwifiex_main_work_queue);
735 /* Register the device. Fill up the private data structure with relevant
736 information from the card and request for the required IRQ. */
737 if (adapter->if_ops.register_dev(adapter)) {
738 pr_err("%s: failed to register mwifiex device\n", __func__);
739 goto err_registerdev;
742 if (mwifiex_init_hw_fw(adapter)) {
743 pr_err("%s: firmware init failed\n", __func__);
751 pr_debug("info: %s: unregister device\n", __func__);
752 adapter->if_ops.unregister_dev(adapter);
754 adapter->surprise_removed = true;
755 mwifiex_terminate_workqueue(adapter);
757 if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) ||
758 (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) {
759 pr_debug("info: %s: shutdown mwifiex\n", __func__);
760 adapter->init_wait_q_woken = false;
762 if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS)
763 wait_event_interruptible(adapter->init_wait_q,
764 adapter->init_wait_q_woken);
767 mwifiex_free_adapter(adapter);
775 EXPORT_SYMBOL_GPL(mwifiex_add_card);
778 * This function removes the card.
780 * This function follows the following major steps to remove the device -
781 * - Stop data traffic
782 * - Shutdown firmware
783 * - Remove the logical interfaces
784 * - Terminate the work queue
785 * - Unregister the device
786 * - Free the adapter structure
788 int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem)
790 struct mwifiex_private *priv = NULL;
793 if (down_interruptible(sem))
799 adapter->surprise_removed = true;
802 for (i = 0; i < adapter->priv_num; i++) {
803 priv = adapter->priv[i];
804 if (priv && priv->netdev) {
805 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
806 if (netif_carrier_ok(priv->netdev))
807 netif_carrier_off(priv->netdev);
811 dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n");
812 adapter->init_wait_q_woken = false;
814 if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS)
815 wait_event_interruptible(adapter->init_wait_q,
816 adapter->init_wait_q_woken);
817 dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n");
818 if (atomic_read(&adapter->rx_pending) ||
819 atomic_read(&adapter->tx_pending) ||
820 atomic_read(&adapter->cmd_pending)) {
821 dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, "
823 atomic_read(&adapter->rx_pending),
824 atomic_read(&adapter->tx_pending),
825 atomic_read(&adapter->cmd_pending));
828 for (i = 0; i < adapter->priv_num; i++) {
829 priv = adapter->priv[i];
835 if (priv->wdev && priv->netdev)
836 mwifiex_del_virtual_intf(priv->wdev->wiphy,
841 priv = adapter->priv[0];
846 wiphy_unregister(priv->wdev->wiphy);
847 wiphy_free(priv->wdev->wiphy);
851 mwifiex_terminate_workqueue(adapter);
853 /* Unregister device */
854 dev_dbg(adapter->dev, "info: unregister device\n");
855 adapter->if_ops.unregister_dev(adapter);
856 /* Free adapter structure */
857 dev_dbg(adapter->dev, "info: free adapter\n");
858 mwifiex_free_adapter(adapter);
865 EXPORT_SYMBOL_GPL(mwifiex_remove_card);
868 * This function initializes the module.
870 * The debug FS is also initialized if configured.
873 mwifiex_init_module(void)
875 #ifdef CONFIG_DEBUG_FS
876 mwifiex_debugfs_init();
882 * This function cleans up the module.
884 * The debug FS is removed if available.
887 mwifiex_cleanup_module(void)
889 #ifdef CONFIG_DEBUG_FS
890 mwifiex_debugfs_remove();
894 module_init(mwifiex_init_module);
895 module_exit(mwifiex_cleanup_module);
897 MODULE_AUTHOR("Marvell International Ltd.");
898 MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION);
899 MODULE_VERSION(VERSION);
900 MODULE_LICENSE("GPL v2");