Commit | Line | Data |
---|---|---|
5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: major functions | |
3 | * | |
65da33f5 | 4 | * Copyright (C) 2011-2014, Marvell International Ltd. |
5e6e3a92 BZ |
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 | |
5e6e3a92 BZ |
31 | /* |
32 | * This function registers the device and performs all the necessary | |
33 | * initializations. | |
34 | * | |
35 | * The following initialization operations are performed - | |
36 | * - Allocate adapter structure | |
37 | * - Save interface specific operations table in adapter | |
38 | * - Call interface specific initialization routine | |
39 | * - Allocate private structures | |
40 | * - Set default adapter structure parameters | |
41 | * - Initialize locks | |
42 | * | |
43 | * In case of any errors during inittialization, this function also ensures | |
44 | * proper cleanup before exiting. | |
45 | */ | |
46 | static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops, | |
287546df | 47 | void **padapter) |
5e6e3a92 | 48 | { |
2be7859f AK |
49 | struct mwifiex_adapter *adapter; |
50 | int i; | |
5e6e3a92 BZ |
51 | |
52 | adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL); | |
5e6e3a92 | 53 | if (!adapter) |
b53575ec | 54 | return -ENOMEM; |
5e6e3a92 | 55 | |
287546df | 56 | *padapter = adapter; |
5e6e3a92 BZ |
57 | adapter->card = card; |
58 | ||
59 | /* Save interface specific operations in adapter */ | |
60 | memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops)); | |
61 | ||
62 | /* card specific initialization has been deferred until now .. */ | |
4daffe35 AK |
63 | if (adapter->if_ops.init_if) |
64 | if (adapter->if_ops.init_if(adapter)) | |
65 | goto error; | |
5e6e3a92 BZ |
66 | |
67 | adapter->priv_num = 0; | |
5e6e3a92 | 68 | |
64b05e2f AP |
69 | for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { |
70 | /* Allocate memory for private structure */ | |
71 | adapter->priv[i] = | |
72 | kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL); | |
73 | if (!adapter->priv[i]) | |
74 | goto error; | |
93a1df48 | 75 | |
64b05e2f | 76 | adapter->priv[i]->adapter = adapter; |
64b05e2f AP |
77 | adapter->priv_num++; |
78 | } | |
44b815c6 | 79 | mwifiex_init_lock_list(adapter); |
5e6e3a92 BZ |
80 | |
81 | init_timer(&adapter->cmd_timer); | |
82 | adapter->cmd_timer.function = mwifiex_cmd_timeout_func; | |
83 | adapter->cmd_timer.data = (unsigned long) adapter; | |
84 | ||
5e6e3a92 BZ |
85 | return 0; |
86 | ||
87 | error: | |
88 | dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n"); | |
89 | ||
93a1df48 | 90 | for (i = 0; i < adapter->priv_num; i++) |
5e6e3a92 | 91 | kfree(adapter->priv[i]); |
93a1df48 | 92 | |
5e6e3a92 BZ |
93 | kfree(adapter); |
94 | ||
95 | return -1; | |
96 | } | |
97 | ||
98 | /* | |
99 | * This function unregisters the device and performs all the necessary | |
100 | * cleanups. | |
101 | * | |
102 | * The following cleanup operations are performed - | |
103 | * - Free the timers | |
104 | * - Free beacon buffers | |
105 | * - Free private structures | |
106 | * - Free adapter structure | |
107 | */ | |
108 | static int mwifiex_unregister(struct mwifiex_adapter *adapter) | |
109 | { | |
270e58e8 | 110 | s32 i; |
5e6e3a92 | 111 | |
4cfda67d AK |
112 | if (adapter->if_ops.cleanup_if) |
113 | adapter->if_ops.cleanup_if(adapter); | |
114 | ||
629873f2 | 115 | del_timer_sync(&adapter->cmd_timer); |
5e6e3a92 BZ |
116 | |
117 | /* Free private structures */ | |
118 | for (i = 0; i < adapter->priv_num; i++) { | |
119 | if (adapter->priv[i]) { | |
120 | mwifiex_free_curr_bcn(adapter->priv[i]); | |
121 | kfree(adapter->priv[i]); | |
122 | } | |
123 | } | |
124 | ||
bf354433 | 125 | vfree(adapter->chan_stats); |
5e6e3a92 BZ |
126 | kfree(adapter); |
127 | return 0; | |
128 | } | |
129 | ||
6e251174 AP |
130 | static int mwifiex_process_rx(struct mwifiex_adapter *adapter) |
131 | { | |
132 | unsigned long flags; | |
133 | struct sk_buff *skb; | |
6e251174 AP |
134 | |
135 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
136 | if (adapter->rx_processing || adapter->rx_locked) { | |
137 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
138 | goto exit_rx_proc; | |
139 | } else { | |
140 | adapter->rx_processing = true; | |
141 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
142 | } | |
143 | ||
144 | /* Check for Rx data */ | |
145 | while ((skb = skb_dequeue(&adapter->rx_data_q))) { | |
146 | atomic_dec(&adapter->rx_pending); | |
147 | if (adapter->delay_main_work && | |
b43a0d9d | 148 | (atomic_read(&adapter->rx_pending) < LOW_RX_PENDING)) { |
6e251174 | 149 | adapter->delay_main_work = false; |
b43a0d9d | 150 | queue_work(adapter->workqueue, &adapter->main_work); |
6e251174 AP |
151 | } |
152 | mwifiex_handle_rx_packet(adapter, skb); | |
153 | } | |
154 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
155 | adapter->rx_processing = false; | |
156 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
157 | ||
6e251174 AP |
158 | exit_rx_proc: |
159 | return 0; | |
160 | } | |
161 | ||
5e6e3a92 BZ |
162 | /* |
163 | * The main process. | |
164 | * | |
165 | * This function is the main procedure of the driver and handles various driver | |
166 | * operations. It runs in a loop and provides the core functionalities. | |
167 | * | |
168 | * The main responsibilities of this function are - | |
169 | * - Ensure concurrency control | |
170 | * - Handle pending interrupts and call interrupt handlers | |
171 | * - Wake up the card if required | |
172 | * - Handle command responses and call response handlers | |
173 | * - Handle events and call event handlers | |
174 | * - Execute pending commands | |
175 | * - Transmit pending data packets | |
176 | */ | |
177 | int mwifiex_main_process(struct mwifiex_adapter *adapter) | |
178 | { | |
179 | int ret = 0; | |
180 | unsigned long flags; | |
181 | ||
182 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
183 | ||
184 | /* Check if already processing */ | |
185 | if (adapter->mwifiex_processing) { | |
186 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
187 | goto exit_main_proc; | |
188 | } else { | |
189 | adapter->mwifiex_processing = true; | |
190 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
191 | } | |
192 | process_start: | |
193 | do { | |
194 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) || | |
195 | (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)) | |
196 | break; | |
197 | ||
6e251174 AP |
198 | /* If we process interrupts first, it would increase RX pending |
199 | * even further. Avoid this by checking if rx_pending has | |
200 | * crossed high threshold and schedule rx work queue | |
201 | * and then process interrupts | |
202 | */ | |
203 | if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING) { | |
204 | adapter->delay_main_work = true; | |
205 | if (!adapter->rx_processing) | |
206 | queue_work(adapter->rx_workqueue, | |
207 | &adapter->rx_work); | |
208 | break; | |
209 | } | |
210 | ||
5e6e3a92 BZ |
211 | /* Handle pending interrupt if any */ |
212 | if (adapter->int_status) { | |
213 | if (adapter->hs_activated) | |
214 | mwifiex_process_hs_config(adapter); | |
4daffe35 AK |
215 | if (adapter->if_ops.process_int_status) |
216 | adapter->if_ops.process_int_status(adapter); | |
5e6e3a92 BZ |
217 | } |
218 | ||
6e251174 AP |
219 | if (adapter->rx_work_enabled && adapter->data_received) |
220 | queue_work(adapter->rx_workqueue, &adapter->rx_work); | |
221 | ||
5e6e3a92 BZ |
222 | /* Need to wake up the card ? */ |
223 | if ((adapter->ps_state == PS_STATE_SLEEP) && | |
224 | (adapter->pm_wakeup_card_req && | |
225 | !adapter->pm_wakeup_fw_try) && | |
f57c1edc YAP |
226 | (is_command_pending(adapter) || |
227 | !mwifiex_wmm_lists_empty(adapter))) { | |
5e6e3a92 BZ |
228 | adapter->pm_wakeup_fw_try = true; |
229 | adapter->if_ops.wakeup(adapter); | |
230 | continue; | |
231 | } | |
4daffe35 | 232 | |
5e6e3a92 | 233 | if (IS_CARD_RX_RCVD(adapter)) { |
6e251174 | 234 | adapter->data_received = false; |
5e6e3a92 BZ |
235 | adapter->pm_wakeup_fw_try = false; |
236 | if (adapter->ps_state == PS_STATE_SLEEP) | |
237 | adapter->ps_state = PS_STATE_AWAKE; | |
238 | } else { | |
239 | /* We have tried to wakeup the card already */ | |
240 | if (adapter->pm_wakeup_fw_try) | |
241 | break; | |
242 | if (adapter->ps_state != PS_STATE_AWAKE || | |
243 | adapter->tx_lock_flag) | |
244 | break; | |
245 | ||
5ec39efa | 246 | if ((!adapter->scan_chan_gap_enabled && |
5ec39efa | 247 | adapter->scan_processing) || adapter->data_sent || |
f57c1edc YAP |
248 | mwifiex_wmm_lists_empty(adapter)) { |
249 | if (adapter->cmd_sent || adapter->curr_cmd || | |
250 | (!is_command_pending(adapter))) | |
5e6e3a92 BZ |
251 | break; |
252 | } | |
253 | } | |
254 | ||
20474129 AK |
255 | /* Check for event */ |
256 | if (adapter->event_received) { | |
257 | adapter->event_received = false; | |
258 | mwifiex_process_event(adapter); | |
259 | } | |
260 | ||
5e6e3a92 BZ |
261 | /* Check for Cmd Resp */ |
262 | if (adapter->cmd_resp_received) { | |
263 | adapter->cmd_resp_received = false; | |
264 | mwifiex_process_cmdresp(adapter); | |
265 | ||
266 | /* call mwifiex back when init_fw is done */ | |
267 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { | |
268 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
269 | mwifiex_init_fw_complete(adapter); | |
270 | } | |
271 | } | |
272 | ||
5e6e3a92 BZ |
273 | /* Check if we need to confirm Sleep Request |
274 | received previously */ | |
275 | if (adapter->ps_state == PS_STATE_PRE_SLEEP) { | |
276 | if (!adapter->cmd_sent && !adapter->curr_cmd) | |
277 | mwifiex_check_ps_cond(adapter); | |
278 | } | |
279 | ||
280 | /* * The ps_state may have been changed during processing of | |
281 | * Sleep Request event. | |
282 | */ | |
f57c1edc YAP |
283 | if ((adapter->ps_state == PS_STATE_SLEEP) || |
284 | (adapter->ps_state == PS_STATE_PRE_SLEEP) || | |
285 | (adapter->ps_state == PS_STATE_SLEEP_CFM) || | |
286 | adapter->tx_lock_flag) | |
5e6e3a92 BZ |
287 | continue; |
288 | ||
289 | if (!adapter->cmd_sent && !adapter->curr_cmd) { | |
290 | if (mwifiex_exec_next_cmd(adapter) == -1) { | |
291 | ret = -1; | |
292 | break; | |
293 | } | |
294 | } | |
295 | ||
5ec39efa | 296 | if ((adapter->scan_chan_gap_enabled || |
d8d91253 | 297 | !adapter->scan_processing) && |
3249ba73 | 298 | !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) { |
5e6e3a92 BZ |
299 | mwifiex_wmm_process_tx(adapter); |
300 | if (adapter->hs_activated) { | |
301 | adapter->is_hs_configured = false; | |
302 | mwifiex_hs_activated_event | |
303 | (mwifiex_get_priv | |
304 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
305 | false); | |
306 | } | |
307 | } | |
308 | ||
309 | if (adapter->delay_null_pkt && !adapter->cmd_sent && | |
f57c1edc YAP |
310 | !adapter->curr_cmd && !is_command_pending(adapter) && |
311 | mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
312 | if (!mwifiex_send_null_packet |
313 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
314 | MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | | |
315 | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { | |
316 | adapter->delay_null_pkt = false; | |
317 | adapter->ps_state = PS_STATE_SLEEP; | |
318 | } | |
319 | break; | |
320 | } | |
321 | } while (true); | |
322 | ||
453b0c3f | 323 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
f73e557b AP |
324 | if (!adapter->delay_main_work && |
325 | (adapter->int_status || IS_CARD_RX_RCVD(adapter))) { | |
453b0c3f | 326 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
5e6e3a92 | 327 | goto process_start; |
453b0c3f | 328 | } |
5e6e3a92 | 329 | |
5e6e3a92 BZ |
330 | adapter->mwifiex_processing = false; |
331 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
332 | ||
333 | exit_main_proc: | |
334 | if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) | |
335 | mwifiex_shutdown_drv(adapter); | |
336 | return ret; | |
337 | } | |
601216e1 | 338 | EXPORT_SYMBOL_GPL(mwifiex_main_process); |
5e6e3a92 | 339 | |
5e6e3a92 BZ |
340 | /* |
341 | * This function frees the adapter structure. | |
342 | * | |
343 | * Additionally, this closes the netlink socket, frees the timers | |
344 | * and private structures. | |
345 | */ | |
346 | static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
347 | { | |
348 | if (!adapter) { | |
349 | pr_err("%s: adapter is NULL\n", __func__); | |
350 | return; | |
351 | } | |
352 | ||
353 | mwifiex_unregister(adapter); | |
354 | pr_debug("info: %s: free adapter\n", __func__); | |
355 | } | |
356 | ||
6b41f941 AK |
357 | /* |
358 | * This function cancels all works in the queue and destroys | |
359 | * the main workqueue. | |
360 | */ | |
361 | static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) | |
362 | { | |
363 | flush_workqueue(adapter->workqueue); | |
364 | destroy_workqueue(adapter->workqueue); | |
365 | adapter->workqueue = NULL; | |
6e251174 AP |
366 | |
367 | if (adapter->rx_workqueue) { | |
368 | flush_workqueue(adapter->rx_workqueue); | |
369 | destroy_workqueue(adapter->rx_workqueue); | |
370 | adapter->rx_workqueue = NULL; | |
371 | } | |
6b41f941 AK |
372 | } |
373 | ||
5e6e3a92 | 374 | /* |
59a4cc25 | 375 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
376 | * |
377 | * The main initialization steps followed are - | |
378 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
379 | * - Issue the init commands to firmware |
380 | */ | |
59a4cc25 | 381 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 382 | { |
bec568ff | 383 | int ret; |
59a4cc25 AK |
384 | char fmt[64]; |
385 | struct mwifiex_private *priv; | |
386 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 387 | struct mwifiex_fw_image fw; |
c3afd99f AK |
388 | struct semaphore *sem = adapter->card_sem; |
389 | bool init_failed = false; | |
68b76e99 | 390 | struct wireless_dev *wdev; |
5e6e3a92 | 391 | |
59a4cc25 AK |
392 | if (!firmware) { |
393 | dev_err(adapter->dev, | |
394 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 395 | goto err_dnld_fw; |
5e6e3a92 | 396 | } |
59a4cc25 AK |
397 | |
398 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
399 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
400 | fw.fw_buf = (u8 *) adapter->firmware->data; |
401 | fw.fw_len = adapter->firmware->size; | |
402 | ||
4daffe35 AK |
403 | if (adapter->if_ops.dnld_fw) |
404 | ret = adapter->if_ops.dnld_fw(adapter, &fw); | |
405 | else | |
406 | ret = mwifiex_dnld_fw(adapter, &fw); | |
5e6e3a92 | 407 | if (ret == -1) |
6b41f941 | 408 | goto err_dnld_fw; |
5e6e3a92 BZ |
409 | |
410 | dev_notice(adapter->dev, "WLAN FW is active\n"); | |
411 | ||
388ec385 AK |
412 | if (cal_data_cfg) { |
413 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
414 | adapter->dev)) < 0) | |
415 | dev_err(adapter->dev, | |
416 | "Cal data request_firmware() failed\n"); | |
417 | } | |
418 | ||
232fde06 | 419 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
420 | if (adapter->if_ops.enable_int) { |
421 | if (adapter->if_ops.enable_int(adapter)) | |
422 | goto err_dnld_fw; | |
423 | } | |
232fde06 | 424 | |
5e6e3a92 BZ |
425 | adapter->init_wait_q_woken = false; |
426 | ret = mwifiex_init_fw(adapter); | |
427 | if (ret == -1) { | |
6b41f941 | 428 | goto err_init_fw; |
5e6e3a92 BZ |
429 | } else if (!ret) { |
430 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
431 | goto done; | |
432 | } | |
433 | /* Wait for mwifiex_init to complete */ | |
434 | wait_event_interruptible(adapter->init_wait_q, | |
435 | adapter->init_wait_q_woken); | |
59a4cc25 | 436 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) |
6b41f941 | 437 | goto err_init_fw; |
59a4cc25 | 438 | |
d6bffe8b AP |
439 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
440 | if (mwifiex_register_cfg80211(adapter)) { | |
59a4cc25 | 441 | dev_err(adapter->dev, "cannot register with cfg80211\n"); |
d1af2943 | 442 | goto err_init_fw; |
59a4cc25 AK |
443 | } |
444 | ||
bf354433 AP |
445 | if (mwifiex_init_channel_scan_gap(adapter)) { |
446 | dev_err(adapter->dev, "could not init channel stats table\n"); | |
447 | goto err_init_fw; | |
448 | } | |
449 | ||
59a4cc25 AK |
450 | rtnl_lock(); |
451 | /* Create station interface by default */ | |
68b76e99 AK |
452 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", |
453 | NL80211_IFTYPE_STATION, NULL, NULL); | |
454 | if (IS_ERR(wdev)) { | |
59a4cc25 | 455 | dev_err(adapter->dev, "cannot create default STA interface\n"); |
bec568ff | 456 | rtnl_unlock(); |
59a4cc25 | 457 | goto err_add_intf; |
5e6e3a92 | 458 | } |
59a4cc25 AK |
459 | rtnl_unlock(); |
460 | ||
461 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
462 | dev_notice(adapter->dev, "driver_version = %s\n", fmt); | |
463 | goto done; | |
5e6e3a92 | 464 | |
59a4cc25 | 465 | err_add_intf: |
6b41f941 AK |
466 | wiphy_unregister(adapter->wiphy); |
467 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 468 | err_init_fw: |
232fde06 DD |
469 | if (adapter->if_ops.disable_int) |
470 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 471 | err_dnld_fw: |
59a4cc25 | 472 | pr_debug("info: %s: unregister device\n", __func__); |
6b41f941 AK |
473 | if (adapter->if_ops.unregister_dev) |
474 | adapter->if_ops.unregister_dev(adapter); | |
475 | ||
476 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || | |
477 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
478 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
479 | adapter->init_wait_q_woken = false; | |
480 | ||
481 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
482 | wait_event_interruptible(adapter->init_wait_q, | |
483 | adapter->init_wait_q_woken); | |
484 | } | |
485 | adapter->surprise_removed = true; | |
486 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 487 | init_failed = true; |
5e6e3a92 | 488 | done: |
388ec385 AK |
489 | if (adapter->cal_data) { |
490 | release_firmware(adapter->cal_data); | |
491 | adapter->cal_data = NULL; | |
492 | } | |
c3afd99f AK |
493 | if (adapter->firmware) { |
494 | release_firmware(adapter->firmware); | |
495 | adapter->firmware = NULL; | |
496 | } | |
c3afd99f AK |
497 | if (init_failed) |
498 | mwifiex_free_adapter(adapter); | |
499 | up(sem); | |
59a4cc25 AK |
500 | return; |
501 | } | |
502 | ||
503 | /* | |
504 | * This function initializes the hardware and gets firmware. | |
505 | */ | |
506 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter) | |
507 | { | |
508 | int ret; | |
509 | ||
59a4cc25 AK |
510 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, |
511 | adapter->dev, GFP_KERNEL, adapter, | |
512 | mwifiex_fw_dpc); | |
513 | if (ret < 0) | |
514 | dev_err(adapter->dev, | |
515 | "request_firmware_nowait() returned error %d\n", ret); | |
5e6e3a92 BZ |
516 | return ret; |
517 | } | |
518 | ||
5e6e3a92 BZ |
519 | /* |
520 | * CFG802.11 network device handler for open. | |
521 | * | |
522 | * Starts the data queue. | |
523 | */ | |
524 | static int | |
525 | mwifiex_open(struct net_device *dev) | |
526 | { | |
bbea3bc4 | 527 | netif_tx_start_all_queues(dev); |
5e6e3a92 BZ |
528 | return 0; |
529 | } | |
530 | ||
531 | /* | |
532 | * CFG802.11 network device handler for close. | |
533 | */ | |
534 | static int | |
535 | mwifiex_close(struct net_device *dev) | |
536 | { | |
f162cac8 AK |
537 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
538 | ||
539 | if (priv->scan_request) { | |
540 | dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n"); | |
541 | cfg80211_scan_done(priv->scan_request, 1); | |
542 | priv->scan_request = NULL; | |
75ab753d | 543 | priv->scan_aborting = true; |
f162cac8 AK |
544 | } |
545 | ||
5e6e3a92 BZ |
546 | return 0; |
547 | } | |
548 | ||
e39faa73 SP |
549 | /* |
550 | * Add buffer into wmm tx queue and queue work to transmit it. | |
551 | */ | |
552 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
553 | { | |
47411a06 AP |
554 | struct netdev_queue *txq; |
555 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
556 | ||
557 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
558 | txq = netdev_get_tx_queue(priv->netdev, index); | |
559 | if (!netif_tx_queue_stopped(txq)) { | |
560 | netif_tx_stop_queue(txq); | |
561 | dev_dbg(priv->adapter->dev, "stop queue: %d\n", index); | |
562 | } | |
563 | } | |
564 | ||
e39faa73 | 565 | atomic_inc(&priv->adapter->tx_pending); |
47411a06 | 566 | mwifiex_wmm_add_buf_txqueue(priv, skb); |
e39faa73 | 567 | |
e39faa73 SP |
568 | queue_work(priv->adapter->workqueue, &priv->adapter->main_work); |
569 | ||
570 | return 0; | |
571 | } | |
572 | ||
5e6e3a92 BZ |
573 | /* |
574 | * CFG802.11 network device handler for data transmission. | |
575 | */ | |
576 | static int | |
577 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
578 | { | |
579 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 580 | struct sk_buff *new_skb; |
5e6e3a92 BZ |
581 | struct mwifiex_txinfo *tx_info; |
582 | ||
9da9a3b2 | 583 | dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n", |
f57c1edc | 584 | jiffies, priv->bss_type, priv->bss_num); |
5e6e3a92 BZ |
585 | |
586 | if (priv->adapter->surprise_removed) { | |
b53575ec | 587 | kfree_skb(skb); |
5e6e3a92 BZ |
588 | priv->stats.tx_dropped++; |
589 | return 0; | |
590 | } | |
591 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
592 | dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 593 | kfree_skb(skb); |
5e6e3a92 BZ |
594 | priv->stats.tx_dropped++; |
595 | return 0; | |
596 | } | |
597 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
598 | dev_dbg(priv->adapter->dev, | |
599 | "data: Tx: insufficient skb headroom %d\n", | |
f57c1edc | 600 | skb_headroom(skb)); |
5e6e3a92 BZ |
601 | /* Insufficient skb headroom - allocate a new skb */ |
602 | new_skb = | |
603 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
604 | if (unlikely(!new_skb)) { | |
605 | dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n"); | |
b53575ec | 606 | kfree_skb(skb); |
5e6e3a92 BZ |
607 | priv->stats.tx_dropped++; |
608 | return 0; | |
609 | } | |
610 | kfree_skb(skb); | |
611 | skb = new_skb; | |
612 | dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n", | |
f57c1edc | 613 | skb_headroom(skb)); |
5e6e3a92 BZ |
614 | } |
615 | ||
616 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
d76744a9 | 617 | memset(tx_info, 0, sizeof(*tx_info)); |
9da9a3b2 YAP |
618 | tx_info->bss_num = priv->bss_num; |
619 | tx_info->bss_type = priv->bss_type; | |
a1ed4849 | 620 | tx_info->pkt_len = skb->len; |
47411a06 AP |
621 | |
622 | /* Record the current time the packet was queued; used to | |
623 | * determine the amount of time the packet was queued in | |
624 | * the driver before it was sent to the firmware. | |
625 | * The delay is then sent along with the packet to the | |
626 | * firmware for aggregate delay calculation for stats and | |
627 | * MSDU lifetime expiry. | |
628 | */ | |
c64800e7 | 629 | __net_timestamp(skb); |
5e6e3a92 | 630 | |
e39faa73 | 631 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
632 | |
633 | return 0; | |
634 | } | |
635 | ||
636 | /* | |
637 | * CFG802.11 network device handler for setting MAC address. | |
638 | */ | |
639 | static int | |
640 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
641 | { | |
642 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 643 | struct sockaddr *hw_addr = addr; |
270e58e8 | 644 | int ret; |
5e6e3a92 BZ |
645 | |
646 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
647 | ||
600f5d90 | 648 | /* Send request to firmware */ |
fa0ecbb9 BZ |
649 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
650 | HostCmd_ACT_GEN_SET, 0, NULL, true); | |
600f5d90 AK |
651 | |
652 | if (!ret) | |
653 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
654 | else | |
f57c1edc YAP |
655 | dev_err(priv->adapter->dev, |
656 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 657 | |
5e6e3a92 BZ |
658 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
659 | ||
600f5d90 | 660 | return ret; |
5e6e3a92 BZ |
661 | } |
662 | ||
663 | /* | |
664 | * CFG802.11 network device handler for setting multicast list. | |
665 | */ | |
666 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
667 | { | |
668 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
669 | struct mwifiex_multicast_list mcast_list; |
670 | ||
671 | if (dev->flags & IFF_PROMISC) { | |
672 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
673 | } else if (dev->flags & IFF_ALLMULTI || | |
674 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
675 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
676 | } else { | |
677 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
678 | mcast_list.num_multicast_addr = |
679 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
680 | } |
681 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
682 | } |
683 | ||
684 | /* | |
685 | * CFG802.11 network device handler for transmission timeout. | |
686 | */ | |
687 | static void | |
688 | mwifiex_tx_timeout(struct net_device *dev) | |
689 | { | |
690 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
691 | ||
5e6e3a92 | 692 | priv->num_tx_timeout++; |
8908c7d5 AN |
693 | priv->tx_timeout_cnt++; |
694 | dev_err(priv->adapter->dev, | |
695 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
696 | jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num); | |
697 | mwifiex_set_trans_start(dev); | |
698 | ||
699 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
700 | priv->adapter->if_ops.card_reset) { | |
701 | dev_err(priv->adapter->dev, | |
702 | "tx_timeout_cnt exceeds threshold. Triggering card reset!\n"); | |
703 | priv->adapter->if_ops.card_reset(priv->adapter); | |
704 | } | |
5e6e3a92 BZ |
705 | } |
706 | ||
707 | /* | |
708 | * CFG802.11 network device handler for statistics retrieval. | |
709 | */ | |
710 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
711 | { | |
712 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
713 | ||
714 | return &priv->stats; | |
715 | } | |
716 | ||
47411a06 | 717 | static u16 |
f663dd9a | 718 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 719 | void *accel_priv, select_queue_fallback_t fallback) |
47411a06 | 720 | { |
fa9ffc74 | 721 | skb->priority = cfg80211_classify8021d(skb, NULL); |
47411a06 AP |
722 | return mwifiex_1d_to_wmm_queue[skb->priority]; |
723 | } | |
724 | ||
5e6e3a92 BZ |
725 | /* Network device handlers */ |
726 | static const struct net_device_ops mwifiex_netdev_ops = { | |
727 | .ndo_open = mwifiex_open, | |
728 | .ndo_stop = mwifiex_close, | |
729 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
730 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
731 | .ndo_tx_timeout = mwifiex_tx_timeout, | |
732 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 733 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 734 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
735 | }; |
736 | ||
737 | /* | |
738 | * This function initializes the private structure parameters. | |
739 | * | |
740 | * The following wait queues are initialized - | |
741 | * - IOCTL wait queue | |
742 | * - Command wait queue | |
743 | * - Statistics wait queue | |
744 | * | |
745 | * ...and the following default parameters are set - | |
746 | * - Current key index : Set to 0 | |
747 | * - Rate index : Set to auto | |
748 | * - Media connected : Set to disconnected | |
749 | * - Adhoc link sensed : Set to false | |
750 | * - Nick name : Set to null | |
751 | * - Number of Tx timeout : Set to 0 | |
752 | * - Device address : Set to current address | |
753 | * | |
754 | * In addition, the CFG80211 work queue is also created. | |
755 | */ | |
93a1df48 YAP |
756 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
757 | struct net_device *dev) | |
5e6e3a92 BZ |
758 | { |
759 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 760 | dev->destructor = free_netdev; |
5e6e3a92 | 761 | /* Initialize private structure */ |
5e6e3a92 BZ |
762 | priv->current_key_index = 0; |
763 | priv->media_connected = false; | |
764 | memset(&priv->nick_name, 0, sizeof(priv->nick_name)); | |
ede98bfa AP |
765 | memset(priv->mgmt_ie, 0, |
766 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
767 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
768 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
769 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
770 | priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK; | |
5e6e3a92 | 771 | priv->num_tx_timeout = 0; |
5e6e3a92 BZ |
772 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
773 | } | |
774 | ||
5e6e3a92 BZ |
775 | /* |
776 | * This function check if command is pending. | |
777 | */ | |
778 | int is_command_pending(struct mwifiex_adapter *adapter) | |
779 | { | |
780 | unsigned long flags; | |
781 | int is_cmd_pend_q_empty; | |
782 | ||
783 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
784 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
785 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
786 | ||
787 | return !is_cmd_pend_q_empty; | |
788 | } | |
789 | ||
6e251174 AP |
790 | /* |
791 | * This is the RX work queue function. | |
792 | * | |
793 | * It handles the RX operations. | |
794 | */ | |
795 | static void mwifiex_rx_work_queue(struct work_struct *work) | |
796 | { | |
797 | struct mwifiex_adapter *adapter = | |
798 | container_of(work, struct mwifiex_adapter, rx_work); | |
799 | ||
800 | if (adapter->surprise_removed) | |
801 | return; | |
802 | mwifiex_process_rx(adapter); | |
803 | } | |
804 | ||
5e6e3a92 BZ |
805 | /* |
806 | * This is the main work queue function. | |
807 | * | |
808 | * It handles the main process, which in turn handles the complete | |
809 | * driver operations. | |
810 | */ | |
811 | static void mwifiex_main_work_queue(struct work_struct *work) | |
812 | { | |
813 | struct mwifiex_adapter *adapter = | |
814 | container_of(work, struct mwifiex_adapter, main_work); | |
815 | ||
816 | if (adapter->surprise_removed) | |
817 | return; | |
818 | mwifiex_main_process(adapter); | |
819 | } | |
820 | ||
5e6e3a92 BZ |
821 | /* |
822 | * This function adds the card. | |
823 | * | |
824 | * This function follows the following major steps to set up the device - | |
825 | * - Initialize software. This includes probing the card, registering | |
826 | * the interface operations table, and allocating/initializing the | |
827 | * adapter structure | |
828 | * - Set up the netlink socket | |
829 | * - Create and start the main work queue | |
830 | * - Register the device | |
831 | * - Initialize firmware and hardware | |
832 | * - Add logical interfaces | |
833 | */ | |
834 | int | |
835 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 836 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 837 | { |
2be7859f | 838 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
839 | |
840 | if (down_interruptible(sem)) | |
841 | goto exit_sem_err; | |
842 | ||
93a1df48 | 843 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
844 | pr_err("%s: software init failed\n", __func__); |
845 | goto err_init_sw; | |
846 | } | |
847 | ||
d930faee | 848 | adapter->iface_type = iface_type; |
6b41f941 | 849 | adapter->card_sem = sem; |
d930faee | 850 | |
5e6e3a92 | 851 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
852 | adapter->surprise_removed = false; |
853 | init_waitqueue_head(&adapter->init_wait_q); | |
854 | adapter->is_suspended = false; | |
855 | adapter->hs_activated = false; | |
856 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 | 857 | init_waitqueue_head(&adapter->cmd_wait_q.wait); |
600f5d90 | 858 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 859 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 860 | |
ec4a16b4 | 861 | if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) { |
6e251174 AP |
862 | adapter->rx_work_enabled = true; |
863 | pr_notice("rx work enabled, cpus %d\n", num_possible_cpus()); | |
864 | } | |
865 | ||
448a71cc AK |
866 | adapter->workqueue = |
867 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
868 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
5e6e3a92 BZ |
869 | if (!adapter->workqueue) |
870 | goto err_kmalloc; | |
871 | ||
872 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
6e251174 AP |
873 | |
874 | if (adapter->rx_work_enabled) { | |
875 | adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", | |
876 | WQ_HIGHPRI | | |
877 | WQ_MEM_RECLAIM | | |
878 | WQ_UNBOUND, 1); | |
879 | if (!adapter->rx_workqueue) | |
880 | goto err_kmalloc; | |
881 | ||
882 | INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); | |
883 | } | |
884 | ||
92c2538f AK |
885 | if (adapter->if_ops.iface_work) |
886 | INIT_WORK(&adapter->iface_work, adapter->if_ops.iface_work); | |
5e6e3a92 BZ |
887 | |
888 | /* Register the device. Fill up the private data structure with relevant | |
232fde06 | 889 | information from the card. */ |
5e6e3a92 BZ |
890 | if (adapter->if_ops.register_dev(adapter)) { |
891 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
892 | goto err_registerdev; | |
893 | } | |
894 | ||
5e6e3a92 BZ |
895 | if (mwifiex_init_hw_fw(adapter)) { |
896 | pr_err("%s: firmware init failed\n", __func__); | |
897 | goto err_init_fw; | |
898 | } | |
2be7859f | 899 | |
5e6e3a92 BZ |
900 | return 0; |
901 | ||
5e6e3a92 | 902 | err_init_fw: |
5e6e3a92 | 903 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
904 | if (adapter->if_ops.unregister_dev) |
905 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
906 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || |
907 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
908 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
909 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
910 | |
911 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
912 | wait_event_interruptible(adapter->init_wait_q, |
913 | adapter->init_wait_q_woken); | |
914 | } | |
6b41f941 AK |
915 | err_registerdev: |
916 | adapter->surprise_removed = true; | |
917 | mwifiex_terminate_workqueue(adapter); | |
918 | err_kmalloc: | |
5e6e3a92 BZ |
919 | mwifiex_free_adapter(adapter); |
920 | ||
921 | err_init_sw: | |
922 | up(sem); | |
923 | ||
924 | exit_sem_err: | |
925 | return -1; | |
926 | } | |
927 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
928 | ||
929 | /* | |
930 | * This function removes the card. | |
931 | * | |
932 | * This function follows the following major steps to remove the device - | |
933 | * - Stop data traffic | |
934 | * - Shutdown firmware | |
935 | * - Remove the logical interfaces | |
936 | * - Terminate the work queue | |
937 | * - Unregister the device | |
938 | * - Free the adapter structure | |
939 | */ | |
940 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
941 | { | |
942 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
943 | int i; |
944 | ||
945 | if (down_interruptible(sem)) | |
946 | goto exit_sem_err; | |
947 | ||
948 | if (!adapter) | |
949 | goto exit_remove; | |
950 | ||
232fde06 DD |
951 | /* We can no longer handle interrupts once we start doing the teardown |
952 | * below. */ | |
953 | if (adapter->if_ops.disable_int) | |
954 | adapter->if_ops.disable_int(adapter); | |
955 | ||
5e6e3a92 BZ |
956 | adapter->surprise_removed = true; |
957 | ||
958 | /* Stop data */ | |
959 | for (i = 0; i < adapter->priv_num; i++) { | |
960 | priv = adapter->priv[i]; | |
93a1df48 | 961 | if (priv && priv->netdev) { |
47411a06 | 962 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
963 | if (netif_carrier_ok(priv->netdev)) |
964 | netif_carrier_off(priv->netdev); | |
965 | } | |
966 | } | |
967 | ||
968 | dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n"); | |
969 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
970 | |
971 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
972 | wait_event_interruptible(adapter->init_wait_q, |
973 | adapter->init_wait_q_woken); | |
974 | dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n"); | |
975 | if (atomic_read(&adapter->rx_pending) || | |
976 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 977 | atomic_read(&adapter->cmd_pending)) { |
5e6e3a92 | 978 | dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, " |
600f5d90 | 979 | "cmd_pending=%d\n", |
5e6e3a92 BZ |
980 | atomic_read(&adapter->rx_pending), |
981 | atomic_read(&adapter->tx_pending), | |
600f5d90 | 982 | atomic_read(&adapter->cmd_pending)); |
5e6e3a92 BZ |
983 | } |
984 | ||
93a1df48 YAP |
985 | for (i = 0; i < adapter->priv_num; i++) { |
986 | priv = adapter->priv[i]; | |
987 | ||
988 | if (!priv) | |
989 | continue; | |
990 | ||
991 | rtnl_lock(); | |
2da8cbf8 | 992 | if (priv->wdev && priv->netdev) |
84efbb84 | 993 | mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev); |
93a1df48 YAP |
994 | rtnl_unlock(); |
995 | } | |
996 | ||
c2868ade AK |
997 | wiphy_unregister(adapter->wiphy); |
998 | wiphy_free(adapter->wiphy); | |
64b05e2f | 999 | |
5e6e3a92 BZ |
1000 | mwifiex_terminate_workqueue(adapter); |
1001 | ||
1002 | /* Unregister device */ | |
1003 | dev_dbg(adapter->dev, "info: unregister device\n"); | |
4daffe35 AK |
1004 | if (adapter->if_ops.unregister_dev) |
1005 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
1006 | /* Free adapter structure */ |
1007 | dev_dbg(adapter->dev, "info: free adapter\n"); | |
1008 | mwifiex_free_adapter(adapter); | |
1009 | ||
1010 | exit_remove: | |
1011 | up(sem); | |
1012 | exit_sem_err: | |
1013 | return 0; | |
1014 | } | |
1015 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1016 | ||
1017 | /* | |
1018 | * This function initializes the module. | |
1019 | * | |
1020 | * The debug FS is also initialized if configured. | |
1021 | */ | |
1022 | static int | |
1023 | mwifiex_init_module(void) | |
1024 | { | |
1025 | #ifdef CONFIG_DEBUG_FS | |
1026 | mwifiex_debugfs_init(); | |
1027 | #endif | |
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | /* | |
1032 | * This function cleans up the module. | |
1033 | * | |
1034 | * The debug FS is removed if available. | |
1035 | */ | |
1036 | static void | |
1037 | mwifiex_cleanup_module(void) | |
1038 | { | |
1039 | #ifdef CONFIG_DEBUG_FS | |
1040 | mwifiex_debugfs_remove(); | |
1041 | #endif | |
1042 | } | |
1043 | ||
1044 | module_init(mwifiex_init_module); | |
1045 | module_exit(mwifiex_cleanup_module); | |
1046 | ||
1047 | MODULE_AUTHOR("Marvell International Ltd."); | |
1048 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1049 | MODULE_VERSION(VERSION); | |
1050 | MODULE_LICENSE("GPL v2"); |