Commit | Line | Data |
---|---|---|
5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: major functions | |
3 | * | |
4 | * Copyright (C) 2011, Marvell International Ltd. | |
5 | * | |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
17 | * this warranty disclaimer. | |
18 | */ | |
19 | ||
20 | #include "main.h" | |
21 | #include "wmm.h" | |
22 | #include "cfg80211.h" | |
23 | #include "11n.h" | |
24 | ||
25 | #define VERSION "1.0" | |
26 | ||
27 | const char driver_version[] = "mwifiex " VERSION " (%s) "; | |
388ec385 AK |
28 | static char *cal_data_cfg; |
29 | module_param(cal_data_cfg, charp, 0); | |
5e6e3a92 | 30 | |
df810083 AK |
31 | static void scan_delay_timer_fn(unsigned long data) |
32 | { | |
33 | struct mwifiex_private *priv = (struct mwifiex_private *)data; | |
34 | struct mwifiex_adapter *adapter = priv->adapter; | |
35 | struct cmd_ctrl_node *cmd_node, *tmp_node; | |
36 | unsigned long flags; | |
37 | ||
38 | if (adapter->surprise_removed) | |
39 | return; | |
40 | ||
41 | if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT) { | |
42 | /* | |
43 | * Abort scan operation by cancelling all pending scan | |
44 | * commands | |
45 | */ | |
46 | spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); | |
47 | list_for_each_entry_safe(cmd_node, tmp_node, | |
48 | &adapter->scan_pending_q, list) { | |
49 | list_del(&cmd_node->list); | |
50 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | |
51 | } | |
52 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); | |
53 | ||
54 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | |
55 | adapter->scan_processing = false; | |
56 | adapter->scan_delay_cnt = 0; | |
57 | adapter->empty_tx_q_cnt = 0; | |
58 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | |
59 | ||
60 | if (priv->scan_request) { | |
61 | dev_dbg(adapter->dev, "info: aborting scan\n"); | |
62 | cfg80211_scan_done(priv->scan_request, 1); | |
63 | priv->scan_request = NULL; | |
64 | } else { | |
65 | priv->scan_aborting = false; | |
66 | dev_dbg(adapter->dev, "info: scan already aborted\n"); | |
67 | } | |
68 | goto done; | |
69 | } | |
70 | ||
71 | if (!atomic_read(&priv->adapter->is_tx_received)) { | |
72 | adapter->empty_tx_q_cnt++; | |
73 | if (adapter->empty_tx_q_cnt == MWIFIEX_MAX_EMPTY_TX_Q_CNT) { | |
74 | /* | |
75 | * No Tx traffic for 200msec. Get scan command from | |
76 | * scan pending queue and put to cmd pending queue to | |
77 | * resume scan operation | |
78 | */ | |
79 | adapter->scan_delay_cnt = 0; | |
80 | adapter->empty_tx_q_cnt = 0; | |
81 | spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); | |
82 | cmd_node = list_first_entry(&adapter->scan_pending_q, | |
83 | struct cmd_ctrl_node, list); | |
84 | list_del(&cmd_node->list); | |
85 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, | |
86 | flags); | |
87 | ||
88 | mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, | |
89 | true); | |
90 | queue_work(adapter->workqueue, &adapter->main_work); | |
91 | goto done; | |
92 | } | |
93 | } else { | |
94 | adapter->empty_tx_q_cnt = 0; | |
95 | } | |
96 | ||
97 | /* Delay scan operation further by 20msec */ | |
98 | mod_timer(&priv->scan_delay_timer, jiffies + | |
99 | msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC)); | |
100 | adapter->scan_delay_cnt++; | |
101 | ||
102 | done: | |
103 | if (atomic_read(&priv->adapter->is_tx_received)) | |
104 | atomic_set(&priv->adapter->is_tx_received, false); | |
105 | ||
106 | return; | |
107 | } | |
108 | ||
5e6e3a92 BZ |
109 | /* |
110 | * This function registers the device and performs all the necessary | |
111 | * initializations. | |
112 | * | |
113 | * The following initialization operations are performed - | |
114 | * - Allocate adapter structure | |
115 | * - Save interface specific operations table in adapter | |
116 | * - Call interface specific initialization routine | |
117 | * - Allocate private structures | |
118 | * - Set default adapter structure parameters | |
119 | * - Initialize locks | |
120 | * | |
121 | * In case of any errors during inittialization, this function also ensures | |
122 | * proper cleanup before exiting. | |
123 | */ | |
124 | static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops, | |
287546df | 125 | void **padapter) |
5e6e3a92 | 126 | { |
2be7859f AK |
127 | struct mwifiex_adapter *adapter; |
128 | int i; | |
5e6e3a92 BZ |
129 | |
130 | adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL); | |
5e6e3a92 | 131 | if (!adapter) |
b53575ec | 132 | return -ENOMEM; |
5e6e3a92 | 133 | |
287546df | 134 | *padapter = adapter; |
5e6e3a92 BZ |
135 | adapter->card = card; |
136 | ||
137 | /* Save interface specific operations in adapter */ | |
138 | memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops)); | |
139 | ||
140 | /* card specific initialization has been deferred until now .. */ | |
4daffe35 AK |
141 | if (adapter->if_ops.init_if) |
142 | if (adapter->if_ops.init_if(adapter)) | |
143 | goto error; | |
5e6e3a92 BZ |
144 | |
145 | adapter->priv_num = 0; | |
5e6e3a92 | 146 | |
64b05e2f AP |
147 | for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { |
148 | /* Allocate memory for private structure */ | |
149 | adapter->priv[i] = | |
150 | kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL); | |
151 | if (!adapter->priv[i]) | |
152 | goto error; | |
93a1df48 | 153 | |
64b05e2f | 154 | adapter->priv[i]->adapter = adapter; |
64b05e2f | 155 | adapter->priv_num++; |
df810083 AK |
156 | |
157 | setup_timer(&adapter->priv[i]->scan_delay_timer, | |
158 | scan_delay_timer_fn, | |
159 | (unsigned long)adapter->priv[i]); | |
64b05e2f | 160 | } |
44b815c6 | 161 | mwifiex_init_lock_list(adapter); |
5e6e3a92 BZ |
162 | |
163 | init_timer(&adapter->cmd_timer); | |
164 | adapter->cmd_timer.function = mwifiex_cmd_timeout_func; | |
165 | adapter->cmd_timer.data = (unsigned long) adapter; | |
166 | ||
5e6e3a92 BZ |
167 | return 0; |
168 | ||
169 | error: | |
170 | dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n"); | |
171 | ||
93a1df48 | 172 | for (i = 0; i < adapter->priv_num; i++) |
5e6e3a92 | 173 | kfree(adapter->priv[i]); |
93a1df48 | 174 | |
5e6e3a92 BZ |
175 | kfree(adapter); |
176 | ||
177 | return -1; | |
178 | } | |
179 | ||
180 | /* | |
181 | * This function unregisters the device and performs all the necessary | |
182 | * cleanups. | |
183 | * | |
184 | * The following cleanup operations are performed - | |
185 | * - Free the timers | |
186 | * - Free beacon buffers | |
187 | * - Free private structures | |
188 | * - Free adapter structure | |
189 | */ | |
190 | static int mwifiex_unregister(struct mwifiex_adapter *adapter) | |
191 | { | |
270e58e8 | 192 | s32 i; |
5e6e3a92 | 193 | |
4cfda67d AK |
194 | if (adapter->if_ops.cleanup_if) |
195 | adapter->if_ops.cleanup_if(adapter); | |
196 | ||
5e6e3a92 BZ |
197 | del_timer(&adapter->cmd_timer); |
198 | ||
199 | /* Free private structures */ | |
200 | for (i = 0; i < adapter->priv_num; i++) { | |
201 | if (adapter->priv[i]) { | |
202 | mwifiex_free_curr_bcn(adapter->priv[i]); | |
003d87cb | 203 | del_timer_sync(&adapter->priv[i]->scan_delay_timer); |
5e6e3a92 BZ |
204 | kfree(adapter->priv[i]); |
205 | } | |
206 | } | |
207 | ||
208 | kfree(adapter); | |
209 | return 0; | |
210 | } | |
211 | ||
212 | /* | |
213 | * The main process. | |
214 | * | |
215 | * This function is the main procedure of the driver and handles various driver | |
216 | * operations. It runs in a loop and provides the core functionalities. | |
217 | * | |
218 | * The main responsibilities of this function are - | |
219 | * - Ensure concurrency control | |
220 | * - Handle pending interrupts and call interrupt handlers | |
221 | * - Wake up the card if required | |
222 | * - Handle command responses and call response handlers | |
223 | * - Handle events and call event handlers | |
224 | * - Execute pending commands | |
225 | * - Transmit pending data packets | |
226 | */ | |
227 | int mwifiex_main_process(struct mwifiex_adapter *adapter) | |
228 | { | |
229 | int ret = 0; | |
230 | unsigned long flags; | |
4daffe35 | 231 | struct sk_buff *skb; |
5e6e3a92 BZ |
232 | |
233 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
234 | ||
235 | /* Check if already processing */ | |
236 | if (adapter->mwifiex_processing) { | |
237 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
238 | goto exit_main_proc; | |
239 | } else { | |
240 | adapter->mwifiex_processing = true; | |
241 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
242 | } | |
243 | process_start: | |
244 | do { | |
245 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) || | |
246 | (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)) | |
247 | break; | |
248 | ||
249 | /* Handle pending interrupt if any */ | |
250 | if (adapter->int_status) { | |
251 | if (adapter->hs_activated) | |
252 | mwifiex_process_hs_config(adapter); | |
4daffe35 AK |
253 | if (adapter->if_ops.process_int_status) |
254 | adapter->if_ops.process_int_status(adapter); | |
5e6e3a92 BZ |
255 | } |
256 | ||
257 | /* Need to wake up the card ? */ | |
258 | if ((adapter->ps_state == PS_STATE_SLEEP) && | |
259 | (adapter->pm_wakeup_card_req && | |
260 | !adapter->pm_wakeup_fw_try) && | |
f57c1edc YAP |
261 | (is_command_pending(adapter) || |
262 | !mwifiex_wmm_lists_empty(adapter))) { | |
5e6e3a92 BZ |
263 | adapter->pm_wakeup_fw_try = true; |
264 | adapter->if_ops.wakeup(adapter); | |
265 | continue; | |
266 | } | |
4daffe35 | 267 | |
5e6e3a92 BZ |
268 | if (IS_CARD_RX_RCVD(adapter)) { |
269 | adapter->pm_wakeup_fw_try = false; | |
270 | if (adapter->ps_state == PS_STATE_SLEEP) | |
271 | adapter->ps_state = PS_STATE_AWAKE; | |
272 | } else { | |
273 | /* We have tried to wakeup the card already */ | |
274 | if (adapter->pm_wakeup_fw_try) | |
275 | break; | |
276 | if (adapter->ps_state != PS_STATE_AWAKE || | |
277 | adapter->tx_lock_flag) | |
278 | break; | |
279 | ||
f931c770 AK |
280 | if ((adapter->scan_processing && |
281 | !adapter->scan_delay_cnt) || adapter->data_sent || | |
f57c1edc YAP |
282 | mwifiex_wmm_lists_empty(adapter)) { |
283 | if (adapter->cmd_sent || adapter->curr_cmd || | |
284 | (!is_command_pending(adapter))) | |
5e6e3a92 BZ |
285 | break; |
286 | } | |
287 | } | |
288 | ||
4daffe35 AK |
289 | /* Check Rx data for USB */ |
290 | if (adapter->iface_type == MWIFIEX_USB) | |
291 | while ((skb = skb_dequeue(&adapter->usb_rx_data_q))) | |
292 | mwifiex_handle_rx_packet(adapter, skb); | |
293 | ||
5e6e3a92 BZ |
294 | /* Check for Cmd Resp */ |
295 | if (adapter->cmd_resp_received) { | |
296 | adapter->cmd_resp_received = false; | |
297 | mwifiex_process_cmdresp(adapter); | |
298 | ||
299 | /* call mwifiex back when init_fw is done */ | |
300 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { | |
301 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
302 | mwifiex_init_fw_complete(adapter); | |
303 | } | |
304 | } | |
305 | ||
306 | /* Check for event */ | |
307 | if (adapter->event_received) { | |
308 | adapter->event_received = false; | |
309 | mwifiex_process_event(adapter); | |
310 | } | |
311 | ||
312 | /* Check if we need to confirm Sleep Request | |
313 | received previously */ | |
314 | if (adapter->ps_state == PS_STATE_PRE_SLEEP) { | |
315 | if (!adapter->cmd_sent && !adapter->curr_cmd) | |
316 | mwifiex_check_ps_cond(adapter); | |
317 | } | |
318 | ||
319 | /* * The ps_state may have been changed during processing of | |
320 | * Sleep Request event. | |
321 | */ | |
f57c1edc YAP |
322 | if ((adapter->ps_state == PS_STATE_SLEEP) || |
323 | (adapter->ps_state == PS_STATE_PRE_SLEEP) || | |
324 | (adapter->ps_state == PS_STATE_SLEEP_CFM) || | |
325 | adapter->tx_lock_flag) | |
5e6e3a92 BZ |
326 | continue; |
327 | ||
328 | if (!adapter->cmd_sent && !adapter->curr_cmd) { | |
329 | if (mwifiex_exec_next_cmd(adapter) == -1) { | |
330 | ret = -1; | |
331 | break; | |
332 | } | |
333 | } | |
334 | ||
3249ba73 AK |
335 | if ((!adapter->scan_processing || adapter->scan_delay_cnt) && |
336 | !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
337 | mwifiex_wmm_process_tx(adapter); |
338 | if (adapter->hs_activated) { | |
339 | adapter->is_hs_configured = false; | |
340 | mwifiex_hs_activated_event | |
341 | (mwifiex_get_priv | |
342 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
343 | false); | |
344 | } | |
345 | } | |
346 | ||
347 | if (adapter->delay_null_pkt && !adapter->cmd_sent && | |
f57c1edc YAP |
348 | !adapter->curr_cmd && !is_command_pending(adapter) && |
349 | mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
350 | if (!mwifiex_send_null_packet |
351 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
352 | MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | | |
353 | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { | |
354 | adapter->delay_null_pkt = false; | |
355 | adapter->ps_state = PS_STATE_SLEEP; | |
356 | } | |
357 | break; | |
358 | } | |
359 | } while (true); | |
360 | ||
453b0c3f AK |
361 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
362 | if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter)) { | |
363 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
5e6e3a92 | 364 | goto process_start; |
453b0c3f | 365 | } |
5e6e3a92 | 366 | |
5e6e3a92 BZ |
367 | adapter->mwifiex_processing = false; |
368 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
369 | ||
370 | exit_main_proc: | |
371 | if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) | |
372 | mwifiex_shutdown_drv(adapter); | |
373 | return ret; | |
374 | } | |
601216e1 | 375 | EXPORT_SYMBOL_GPL(mwifiex_main_process); |
5e6e3a92 | 376 | |
5e6e3a92 BZ |
377 | /* |
378 | * This function frees the adapter structure. | |
379 | * | |
380 | * Additionally, this closes the netlink socket, frees the timers | |
381 | * and private structures. | |
382 | */ | |
383 | static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
384 | { | |
385 | if (!adapter) { | |
386 | pr_err("%s: adapter is NULL\n", __func__); | |
387 | return; | |
388 | } | |
389 | ||
390 | mwifiex_unregister(adapter); | |
391 | pr_debug("info: %s: free adapter\n", __func__); | |
392 | } | |
393 | ||
6b41f941 AK |
394 | /* |
395 | * This function cancels all works in the queue and destroys | |
396 | * the main workqueue. | |
397 | */ | |
398 | static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) | |
399 | { | |
400 | flush_workqueue(adapter->workqueue); | |
401 | destroy_workqueue(adapter->workqueue); | |
402 | adapter->workqueue = NULL; | |
403 | } | |
404 | ||
5e6e3a92 | 405 | /* |
59a4cc25 | 406 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
407 | * |
408 | * The main initialization steps followed are - | |
409 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
410 | * - Issue the init commands to firmware |
411 | */ | |
59a4cc25 | 412 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 413 | { |
6b41f941 | 414 | int ret, i; |
59a4cc25 AK |
415 | char fmt[64]; |
416 | struct mwifiex_private *priv; | |
417 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 418 | struct mwifiex_fw_image fw; |
c3afd99f AK |
419 | struct semaphore *sem = adapter->card_sem; |
420 | bool init_failed = false; | |
5e6e3a92 | 421 | |
59a4cc25 AK |
422 | if (!firmware) { |
423 | dev_err(adapter->dev, | |
424 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 425 | goto err_dnld_fw; |
5e6e3a92 | 426 | } |
59a4cc25 AK |
427 | |
428 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
429 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
430 | fw.fw_buf = (u8 *) adapter->firmware->data; |
431 | fw.fw_len = adapter->firmware->size; | |
432 | ||
4daffe35 AK |
433 | if (adapter->if_ops.dnld_fw) |
434 | ret = adapter->if_ops.dnld_fw(adapter, &fw); | |
435 | else | |
436 | ret = mwifiex_dnld_fw(adapter, &fw); | |
5e6e3a92 | 437 | if (ret == -1) |
6b41f941 | 438 | goto err_dnld_fw; |
5e6e3a92 BZ |
439 | |
440 | dev_notice(adapter->dev, "WLAN FW is active\n"); | |
441 | ||
388ec385 AK |
442 | if (cal_data_cfg) { |
443 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
444 | adapter->dev)) < 0) | |
445 | dev_err(adapter->dev, | |
446 | "Cal data request_firmware() failed\n"); | |
447 | } | |
448 | ||
232fde06 | 449 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
450 | if (adapter->if_ops.enable_int) { |
451 | if (adapter->if_ops.enable_int(adapter)) | |
452 | goto err_dnld_fw; | |
453 | } | |
232fde06 | 454 | |
5e6e3a92 BZ |
455 | adapter->init_wait_q_woken = false; |
456 | ret = mwifiex_init_fw(adapter); | |
457 | if (ret == -1) { | |
6b41f941 | 458 | goto err_init_fw; |
5e6e3a92 BZ |
459 | } else if (!ret) { |
460 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
461 | goto done; | |
462 | } | |
463 | /* Wait for mwifiex_init to complete */ | |
464 | wait_event_interruptible(adapter->init_wait_q, | |
465 | adapter->init_wait_q_woken); | |
59a4cc25 | 466 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) |
6b41f941 | 467 | goto err_init_fw; |
59a4cc25 | 468 | |
d6bffe8b AP |
469 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
470 | if (mwifiex_register_cfg80211(adapter)) { | |
59a4cc25 | 471 | dev_err(adapter->dev, "cannot register with cfg80211\n"); |
6b41f941 | 472 | goto err_register_cfg80211; |
59a4cc25 AK |
473 | } |
474 | ||
475 | rtnl_lock(); | |
476 | /* Create station interface by default */ | |
d6bffe8b | 477 | if (!mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", |
59a4cc25 AK |
478 | NL80211_IFTYPE_STATION, NULL, NULL)) { |
479 | dev_err(adapter->dev, "cannot create default STA interface\n"); | |
480 | goto err_add_intf; | |
5e6e3a92 | 481 | } |
59a4cc25 AK |
482 | rtnl_unlock(); |
483 | ||
484 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
485 | dev_notice(adapter->dev, "driver_version = %s\n", fmt); | |
486 | goto done; | |
5e6e3a92 | 487 | |
59a4cc25 | 488 | err_add_intf: |
6b41f941 AK |
489 | for (i = 0; i < adapter->priv_num; i++) { |
490 | priv = adapter->priv[i]; | |
491 | ||
492 | if (!priv) | |
493 | continue; | |
494 | ||
495 | if (priv->wdev && priv->netdev) | |
496 | mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev); | |
497 | } | |
59a4cc25 | 498 | rtnl_unlock(); |
6b41f941 AK |
499 | err_register_cfg80211: |
500 | wiphy_unregister(adapter->wiphy); | |
501 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 502 | err_init_fw: |
232fde06 DD |
503 | if (adapter->if_ops.disable_int) |
504 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 505 | err_dnld_fw: |
59a4cc25 | 506 | pr_debug("info: %s: unregister device\n", __func__); |
6b41f941 AK |
507 | if (adapter->if_ops.unregister_dev) |
508 | adapter->if_ops.unregister_dev(adapter); | |
509 | ||
510 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || | |
511 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
512 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
513 | adapter->init_wait_q_woken = false; | |
514 | ||
515 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
516 | wait_event_interruptible(adapter->init_wait_q, | |
517 | adapter->init_wait_q_woken); | |
518 | } | |
519 | adapter->surprise_removed = true; | |
520 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 521 | init_failed = true; |
5e6e3a92 | 522 | done: |
388ec385 AK |
523 | if (adapter->cal_data) { |
524 | release_firmware(adapter->cal_data); | |
525 | adapter->cal_data = NULL; | |
526 | } | |
c3afd99f AK |
527 | if (adapter->firmware) { |
528 | release_firmware(adapter->firmware); | |
529 | adapter->firmware = NULL; | |
530 | } | |
59a4cc25 | 531 | complete(&adapter->fw_load); |
c3afd99f AK |
532 | if (init_failed) |
533 | mwifiex_free_adapter(adapter); | |
534 | up(sem); | |
59a4cc25 AK |
535 | return; |
536 | } | |
537 | ||
538 | /* | |
539 | * This function initializes the hardware and gets firmware. | |
540 | */ | |
541 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter) | |
542 | { | |
543 | int ret; | |
544 | ||
545 | init_completion(&adapter->fw_load); | |
546 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, | |
547 | adapter->dev, GFP_KERNEL, adapter, | |
548 | mwifiex_fw_dpc); | |
549 | if (ret < 0) | |
550 | dev_err(adapter->dev, | |
551 | "request_firmware_nowait() returned error %d\n", ret); | |
5e6e3a92 BZ |
552 | return ret; |
553 | } | |
554 | ||
5e6e3a92 BZ |
555 | /* |
556 | * CFG802.11 network device handler for open. | |
557 | * | |
558 | * Starts the data queue. | |
559 | */ | |
560 | static int | |
561 | mwifiex_open(struct net_device *dev) | |
562 | { | |
bbea3bc4 | 563 | netif_tx_start_all_queues(dev); |
5e6e3a92 BZ |
564 | return 0; |
565 | } | |
566 | ||
567 | /* | |
568 | * CFG802.11 network device handler for close. | |
569 | */ | |
570 | static int | |
571 | mwifiex_close(struct net_device *dev) | |
572 | { | |
f162cac8 AK |
573 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
574 | ||
575 | if (priv->scan_request) { | |
576 | dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n"); | |
577 | cfg80211_scan_done(priv->scan_request, 1); | |
578 | priv->scan_request = NULL; | |
75ab753d | 579 | priv->scan_aborting = true; |
f162cac8 AK |
580 | } |
581 | ||
5e6e3a92 BZ |
582 | return 0; |
583 | } | |
584 | ||
e39faa73 SP |
585 | /* |
586 | * Add buffer into wmm tx queue and queue work to transmit it. | |
587 | */ | |
588 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
589 | { | |
47411a06 AP |
590 | struct netdev_queue *txq; |
591 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
592 | ||
593 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
594 | txq = netdev_get_tx_queue(priv->netdev, index); | |
595 | if (!netif_tx_queue_stopped(txq)) { | |
596 | netif_tx_stop_queue(txq); | |
597 | dev_dbg(priv->adapter->dev, "stop queue: %d\n", index); | |
598 | } | |
599 | } | |
600 | ||
e39faa73 | 601 | atomic_inc(&priv->adapter->tx_pending); |
47411a06 | 602 | mwifiex_wmm_add_buf_txqueue(priv, skb); |
e39faa73 SP |
603 | |
604 | if (priv->adapter->scan_delay_cnt) | |
605 | atomic_set(&priv->adapter->is_tx_received, true); | |
606 | ||
e39faa73 SP |
607 | queue_work(priv->adapter->workqueue, &priv->adapter->main_work); |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
5e6e3a92 BZ |
612 | /* |
613 | * CFG802.11 network device handler for data transmission. | |
614 | */ | |
615 | static int | |
616 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
617 | { | |
618 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 619 | struct sk_buff *new_skb; |
5e6e3a92 | 620 | struct mwifiex_txinfo *tx_info; |
47411a06 | 621 | struct timeval tv; |
5e6e3a92 | 622 | |
9da9a3b2 | 623 | dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n", |
f57c1edc | 624 | jiffies, priv->bss_type, priv->bss_num); |
5e6e3a92 BZ |
625 | |
626 | if (priv->adapter->surprise_removed) { | |
b53575ec | 627 | kfree_skb(skb); |
5e6e3a92 BZ |
628 | priv->stats.tx_dropped++; |
629 | return 0; | |
630 | } | |
631 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
632 | dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 633 | kfree_skb(skb); |
5e6e3a92 BZ |
634 | priv->stats.tx_dropped++; |
635 | return 0; | |
636 | } | |
637 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
638 | dev_dbg(priv->adapter->dev, | |
639 | "data: Tx: insufficient skb headroom %d\n", | |
f57c1edc | 640 | skb_headroom(skb)); |
5e6e3a92 BZ |
641 | /* Insufficient skb headroom - allocate a new skb */ |
642 | new_skb = | |
643 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
644 | if (unlikely(!new_skb)) { | |
645 | dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n"); | |
b53575ec | 646 | kfree_skb(skb); |
5e6e3a92 BZ |
647 | priv->stats.tx_dropped++; |
648 | return 0; | |
649 | } | |
650 | kfree_skb(skb); | |
651 | skb = new_skb; | |
652 | dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n", | |
f57c1edc | 653 | skb_headroom(skb)); |
5e6e3a92 BZ |
654 | } |
655 | ||
656 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
9da9a3b2 YAP |
657 | tx_info->bss_num = priv->bss_num; |
658 | tx_info->bss_type = priv->bss_type; | |
47411a06 AP |
659 | |
660 | /* Record the current time the packet was queued; used to | |
661 | * determine the amount of time the packet was queued in | |
662 | * the driver before it was sent to the firmware. | |
663 | * The delay is then sent along with the packet to the | |
664 | * firmware for aggregate delay calculation for stats and | |
665 | * MSDU lifetime expiry. | |
666 | */ | |
667 | do_gettimeofday(&tv); | |
668 | skb->tstamp = timeval_to_ktime(tv); | |
5e6e3a92 | 669 | |
e39faa73 | 670 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
671 | |
672 | return 0; | |
673 | } | |
674 | ||
675 | /* | |
676 | * CFG802.11 network device handler for setting MAC address. | |
677 | */ | |
678 | static int | |
679 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
680 | { | |
681 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 682 | struct sockaddr *hw_addr = addr; |
270e58e8 | 683 | int ret; |
5e6e3a92 BZ |
684 | |
685 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
686 | ||
600f5d90 AK |
687 | /* Send request to firmware */ |
688 | ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_MAC_ADDRESS, | |
689 | HostCmd_ACT_GEN_SET, 0, NULL); | |
690 | ||
691 | if (!ret) | |
692 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
693 | else | |
f57c1edc YAP |
694 | dev_err(priv->adapter->dev, |
695 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 696 | |
5e6e3a92 BZ |
697 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
698 | ||
600f5d90 | 699 | return ret; |
5e6e3a92 BZ |
700 | } |
701 | ||
702 | /* | |
703 | * CFG802.11 network device handler for setting multicast list. | |
704 | */ | |
705 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
706 | { | |
707 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
708 | struct mwifiex_multicast_list mcast_list; |
709 | ||
710 | if (dev->flags & IFF_PROMISC) { | |
711 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
712 | } else if (dev->flags & IFF_ALLMULTI || | |
713 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
714 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
715 | } else { | |
716 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
717 | mcast_list.num_multicast_addr = |
718 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
719 | } |
720 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
721 | } |
722 | ||
723 | /* | |
724 | * CFG802.11 network device handler for transmission timeout. | |
725 | */ | |
726 | static void | |
727 | mwifiex_tx_timeout(struct net_device *dev) | |
728 | { | |
729 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
730 | ||
5e6e3a92 | 731 | priv->num_tx_timeout++; |
8908c7d5 AN |
732 | priv->tx_timeout_cnt++; |
733 | dev_err(priv->adapter->dev, | |
734 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
735 | jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num); | |
736 | mwifiex_set_trans_start(dev); | |
737 | ||
738 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
739 | priv->adapter->if_ops.card_reset) { | |
740 | dev_err(priv->adapter->dev, | |
741 | "tx_timeout_cnt exceeds threshold. Triggering card reset!\n"); | |
742 | priv->adapter->if_ops.card_reset(priv->adapter); | |
743 | } | |
5e6e3a92 BZ |
744 | } |
745 | ||
746 | /* | |
747 | * CFG802.11 network device handler for statistics retrieval. | |
748 | */ | |
749 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
750 | { | |
751 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
752 | ||
753 | return &priv->stats; | |
754 | } | |
755 | ||
47411a06 AP |
756 | static u16 |
757 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb) | |
758 | { | |
759 | skb->priority = cfg80211_classify8021d(skb); | |
760 | return mwifiex_1d_to_wmm_queue[skb->priority]; | |
761 | } | |
762 | ||
5e6e3a92 BZ |
763 | /* Network device handlers */ |
764 | static const struct net_device_ops mwifiex_netdev_ops = { | |
765 | .ndo_open = mwifiex_open, | |
766 | .ndo_stop = mwifiex_close, | |
767 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
768 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
769 | .ndo_tx_timeout = mwifiex_tx_timeout, | |
770 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 771 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 772 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
773 | }; |
774 | ||
775 | /* | |
776 | * This function initializes the private structure parameters. | |
777 | * | |
778 | * The following wait queues are initialized - | |
779 | * - IOCTL wait queue | |
780 | * - Command wait queue | |
781 | * - Statistics wait queue | |
782 | * | |
783 | * ...and the following default parameters are set - | |
784 | * - Current key index : Set to 0 | |
785 | * - Rate index : Set to auto | |
786 | * - Media connected : Set to disconnected | |
787 | * - Adhoc link sensed : Set to false | |
788 | * - Nick name : Set to null | |
789 | * - Number of Tx timeout : Set to 0 | |
790 | * - Device address : Set to current address | |
791 | * | |
792 | * In addition, the CFG80211 work queue is also created. | |
793 | */ | |
93a1df48 YAP |
794 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
795 | struct net_device *dev) | |
5e6e3a92 BZ |
796 | { |
797 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 798 | dev->destructor = free_netdev; |
5e6e3a92 | 799 | /* Initialize private structure */ |
5e6e3a92 BZ |
800 | priv->current_key_index = 0; |
801 | priv->media_connected = false; | |
802 | memset(&priv->nick_name, 0, sizeof(priv->nick_name)); | |
ede98bfa AP |
803 | memset(priv->mgmt_ie, 0, |
804 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
805 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
806 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
807 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
808 | priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK; | |
5e6e3a92 | 809 | priv->num_tx_timeout = 0; |
5e6e3a92 BZ |
810 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
811 | } | |
812 | ||
5e6e3a92 BZ |
813 | /* |
814 | * This function check if command is pending. | |
815 | */ | |
816 | int is_command_pending(struct mwifiex_adapter *adapter) | |
817 | { | |
818 | unsigned long flags; | |
819 | int is_cmd_pend_q_empty; | |
820 | ||
821 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
822 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
823 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
824 | ||
825 | return !is_cmd_pend_q_empty; | |
826 | } | |
827 | ||
5e6e3a92 BZ |
828 | /* |
829 | * This is the main work queue function. | |
830 | * | |
831 | * It handles the main process, which in turn handles the complete | |
832 | * driver operations. | |
833 | */ | |
834 | static void mwifiex_main_work_queue(struct work_struct *work) | |
835 | { | |
836 | struct mwifiex_adapter *adapter = | |
837 | container_of(work, struct mwifiex_adapter, main_work); | |
838 | ||
839 | if (adapter->surprise_removed) | |
840 | return; | |
841 | mwifiex_main_process(adapter); | |
842 | } | |
843 | ||
5e6e3a92 BZ |
844 | /* |
845 | * This function adds the card. | |
846 | * | |
847 | * This function follows the following major steps to set up the device - | |
848 | * - Initialize software. This includes probing the card, registering | |
849 | * the interface operations table, and allocating/initializing the | |
850 | * adapter structure | |
851 | * - Set up the netlink socket | |
852 | * - Create and start the main work queue | |
853 | * - Register the device | |
854 | * - Initialize firmware and hardware | |
855 | * - Add logical interfaces | |
856 | */ | |
857 | int | |
858 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 859 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 860 | { |
2be7859f | 861 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
862 | |
863 | if (down_interruptible(sem)) | |
864 | goto exit_sem_err; | |
865 | ||
93a1df48 | 866 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
867 | pr_err("%s: software init failed\n", __func__); |
868 | goto err_init_sw; | |
869 | } | |
870 | ||
d930faee | 871 | adapter->iface_type = iface_type; |
6b41f941 | 872 | adapter->card_sem = sem; |
d930faee | 873 | |
5e6e3a92 | 874 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
875 | adapter->surprise_removed = false; |
876 | init_waitqueue_head(&adapter->init_wait_q); | |
877 | adapter->is_suspended = false; | |
878 | adapter->hs_activated = false; | |
879 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 AK |
880 | adapter->cmd_wait_q_required = false; |
881 | init_waitqueue_head(&adapter->cmd_wait_q.wait); | |
600f5d90 | 882 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 883 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 884 | |
5e6e3a92 BZ |
885 | adapter->workqueue = create_workqueue("MWIFIEX_WORK_QUEUE"); |
886 | if (!adapter->workqueue) | |
887 | goto err_kmalloc; | |
888 | ||
889 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
890 | ||
891 | /* Register the device. Fill up the private data structure with relevant | |
232fde06 | 892 | information from the card. */ |
5e6e3a92 BZ |
893 | if (adapter->if_ops.register_dev(adapter)) { |
894 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
895 | goto err_registerdev; | |
896 | } | |
897 | ||
5e6e3a92 BZ |
898 | if (mwifiex_init_hw_fw(adapter)) { |
899 | pr_err("%s: firmware init failed\n", __func__); | |
900 | goto err_init_fw; | |
901 | } | |
2be7859f | 902 | |
5e6e3a92 BZ |
903 | return 0; |
904 | ||
5e6e3a92 | 905 | err_init_fw: |
5e6e3a92 | 906 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
907 | if (adapter->if_ops.unregister_dev) |
908 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
909 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || |
910 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
911 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
912 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
913 | |
914 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
915 | wait_event_interruptible(adapter->init_wait_q, |
916 | adapter->init_wait_q_woken); | |
917 | } | |
6b41f941 AK |
918 | err_registerdev: |
919 | adapter->surprise_removed = true; | |
920 | mwifiex_terminate_workqueue(adapter); | |
921 | err_kmalloc: | |
5e6e3a92 BZ |
922 | mwifiex_free_adapter(adapter); |
923 | ||
924 | err_init_sw: | |
925 | up(sem); | |
926 | ||
927 | exit_sem_err: | |
928 | return -1; | |
929 | } | |
930 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
931 | ||
932 | /* | |
933 | * This function removes the card. | |
934 | * | |
935 | * This function follows the following major steps to remove the device - | |
936 | * - Stop data traffic | |
937 | * - Shutdown firmware | |
938 | * - Remove the logical interfaces | |
939 | * - Terminate the work queue | |
940 | * - Unregister the device | |
941 | * - Free the adapter structure | |
942 | */ | |
943 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
944 | { | |
945 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
946 | int i; |
947 | ||
948 | if (down_interruptible(sem)) | |
949 | goto exit_sem_err; | |
950 | ||
951 | if (!adapter) | |
952 | goto exit_remove; | |
953 | ||
232fde06 DD |
954 | /* We can no longer handle interrupts once we start doing the teardown |
955 | * below. */ | |
956 | if (adapter->if_ops.disable_int) | |
957 | adapter->if_ops.disable_int(adapter); | |
958 | ||
5e6e3a92 BZ |
959 | adapter->surprise_removed = true; |
960 | ||
961 | /* Stop data */ | |
962 | for (i = 0; i < adapter->priv_num; i++) { | |
963 | priv = adapter->priv[i]; | |
93a1df48 | 964 | if (priv && priv->netdev) { |
47411a06 | 965 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
966 | if (netif_carrier_ok(priv->netdev)) |
967 | netif_carrier_off(priv->netdev); | |
968 | } | |
969 | } | |
970 | ||
971 | dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n"); | |
972 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
973 | |
974 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
975 | wait_event_interruptible(adapter->init_wait_q, |
976 | adapter->init_wait_q_woken); | |
977 | dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n"); | |
978 | if (atomic_read(&adapter->rx_pending) || | |
979 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 980 | atomic_read(&adapter->cmd_pending)) { |
5e6e3a92 | 981 | dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, " |
600f5d90 | 982 | "cmd_pending=%d\n", |
5e6e3a92 BZ |
983 | atomic_read(&adapter->rx_pending), |
984 | atomic_read(&adapter->tx_pending), | |
600f5d90 | 985 | atomic_read(&adapter->cmd_pending)); |
5e6e3a92 BZ |
986 | } |
987 | ||
93a1df48 YAP |
988 | for (i = 0; i < adapter->priv_num; i++) { |
989 | priv = adapter->priv[i]; | |
990 | ||
991 | if (!priv) | |
992 | continue; | |
993 | ||
994 | rtnl_lock(); | |
2da8cbf8 | 995 | if (priv->wdev && priv->netdev) |
84efbb84 | 996 | mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev); |
93a1df48 YAP |
997 | rtnl_unlock(); |
998 | } | |
999 | ||
3d82de0f | 1000 | priv = adapter->priv[0]; |
64b05e2f | 1001 | if (!priv || !priv->wdev) |
3d82de0f YAP |
1002 | goto exit_remove; |
1003 | ||
64b05e2f AP |
1004 | wiphy_unregister(priv->wdev->wiphy); |
1005 | wiphy_free(priv->wdev->wiphy); | |
1006 | ||
1007 | for (i = 0; i < adapter->priv_num; i++) { | |
1008 | priv = adapter->priv[i]; | |
1009 | if (priv) | |
1010 | kfree(priv->wdev); | |
2da8cbf8 | 1011 | } |
5e6e3a92 BZ |
1012 | |
1013 | mwifiex_terminate_workqueue(adapter); | |
1014 | ||
1015 | /* Unregister device */ | |
1016 | dev_dbg(adapter->dev, "info: unregister device\n"); | |
4daffe35 AK |
1017 | if (adapter->if_ops.unregister_dev) |
1018 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
1019 | /* Free adapter structure */ |
1020 | dev_dbg(adapter->dev, "info: free adapter\n"); | |
1021 | mwifiex_free_adapter(adapter); | |
1022 | ||
1023 | exit_remove: | |
1024 | up(sem); | |
1025 | exit_sem_err: | |
1026 | return 0; | |
1027 | } | |
1028 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1029 | ||
1030 | /* | |
1031 | * This function initializes the module. | |
1032 | * | |
1033 | * The debug FS is also initialized if configured. | |
1034 | */ | |
1035 | static int | |
1036 | mwifiex_init_module(void) | |
1037 | { | |
1038 | #ifdef CONFIG_DEBUG_FS | |
1039 | mwifiex_debugfs_init(); | |
1040 | #endif | |
1041 | return 0; | |
1042 | } | |
1043 | ||
1044 | /* | |
1045 | * This function cleans up the module. | |
1046 | * | |
1047 | * The debug FS is removed if available. | |
1048 | */ | |
1049 | static void | |
1050 | mwifiex_cleanup_module(void) | |
1051 | { | |
1052 | #ifdef CONFIG_DEBUG_FS | |
1053 | mwifiex_debugfs_remove(); | |
1054 | #endif | |
1055 | } | |
1056 | ||
1057 | module_init(mwifiex_init_module); | |
1058 | module_exit(mwifiex_cleanup_module); | |
1059 | ||
1060 | MODULE_AUTHOR("Marvell International Ltd."); | |
1061 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1062 | MODULE_VERSION(VERSION); | |
1063 | MODULE_LICENSE("GPL v2"); |