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)) { |
cf6a64fd AK |
149 | if (adapter->if_ops.submit_rem_rx_urbs) |
150 | adapter->if_ops.submit_rem_rx_urbs(adapter); | |
6e251174 | 151 | adapter->delay_main_work = false; |
b43a0d9d | 152 | queue_work(adapter->workqueue, &adapter->main_work); |
6e251174 AP |
153 | } |
154 | mwifiex_handle_rx_packet(adapter, skb); | |
155 | } | |
156 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
157 | adapter->rx_processing = false; | |
158 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
159 | ||
6e251174 AP |
160 | exit_rx_proc: |
161 | return 0; | |
162 | } | |
163 | ||
5e6e3a92 BZ |
164 | /* |
165 | * The main process. | |
166 | * | |
167 | * This function is the main procedure of the driver and handles various driver | |
168 | * operations. It runs in a loop and provides the core functionalities. | |
169 | * | |
170 | * The main responsibilities of this function are - | |
171 | * - Ensure concurrency control | |
172 | * - Handle pending interrupts and call interrupt handlers | |
173 | * - Wake up the card if required | |
174 | * - Handle command responses and call response handlers | |
175 | * - Handle events and call event handlers | |
176 | * - Execute pending commands | |
177 | * - Transmit pending data packets | |
178 | */ | |
179 | int mwifiex_main_process(struct mwifiex_adapter *adapter) | |
180 | { | |
181 | int ret = 0; | |
182 | unsigned long flags; | |
183 | ||
184 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
185 | ||
186 | /* Check if already processing */ | |
187 | if (adapter->mwifiex_processing) { | |
188 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
189 | goto exit_main_proc; | |
190 | } else { | |
191 | adapter->mwifiex_processing = true; | |
192 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
193 | } | |
194 | process_start: | |
195 | do { | |
196 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) || | |
197 | (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)) | |
198 | break; | |
199 | ||
6e251174 AP |
200 | /* If we process interrupts first, it would increase RX pending |
201 | * even further. Avoid this by checking if rx_pending has | |
202 | * crossed high threshold and schedule rx work queue | |
203 | * and then process interrupts | |
204 | */ | |
205 | if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING) { | |
206 | adapter->delay_main_work = true; | |
207 | if (!adapter->rx_processing) | |
208 | queue_work(adapter->rx_workqueue, | |
209 | &adapter->rx_work); | |
210 | break; | |
211 | } | |
212 | ||
5e6e3a92 BZ |
213 | /* Handle pending interrupt if any */ |
214 | if (adapter->int_status) { | |
215 | if (adapter->hs_activated) | |
216 | mwifiex_process_hs_config(adapter); | |
4daffe35 AK |
217 | if (adapter->if_ops.process_int_status) |
218 | adapter->if_ops.process_int_status(adapter); | |
5e6e3a92 BZ |
219 | } |
220 | ||
6e251174 AP |
221 | if (adapter->rx_work_enabled && adapter->data_received) |
222 | queue_work(adapter->rx_workqueue, &adapter->rx_work); | |
223 | ||
5e6e3a92 BZ |
224 | /* Need to wake up the card ? */ |
225 | if ((adapter->ps_state == PS_STATE_SLEEP) && | |
226 | (adapter->pm_wakeup_card_req && | |
227 | !adapter->pm_wakeup_fw_try) && | |
f57c1edc YAP |
228 | (is_command_pending(adapter) || |
229 | !mwifiex_wmm_lists_empty(adapter))) { | |
5e6e3a92 BZ |
230 | adapter->pm_wakeup_fw_try = true; |
231 | adapter->if_ops.wakeup(adapter); | |
232 | continue; | |
233 | } | |
4daffe35 | 234 | |
5e6e3a92 | 235 | if (IS_CARD_RX_RCVD(adapter)) { |
6e251174 | 236 | adapter->data_received = false; |
5e6e3a92 BZ |
237 | adapter->pm_wakeup_fw_try = false; |
238 | if (adapter->ps_state == PS_STATE_SLEEP) | |
239 | adapter->ps_state = PS_STATE_AWAKE; | |
240 | } else { | |
241 | /* We have tried to wakeup the card already */ | |
242 | if (adapter->pm_wakeup_fw_try) | |
243 | break; | |
244 | if (adapter->ps_state != PS_STATE_AWAKE || | |
245 | adapter->tx_lock_flag) | |
246 | break; | |
247 | ||
5ec39efa | 248 | if ((!adapter->scan_chan_gap_enabled && |
5ec39efa | 249 | adapter->scan_processing) || adapter->data_sent || |
f57c1edc YAP |
250 | mwifiex_wmm_lists_empty(adapter)) { |
251 | if (adapter->cmd_sent || adapter->curr_cmd || | |
252 | (!is_command_pending(adapter))) | |
5e6e3a92 BZ |
253 | break; |
254 | } | |
255 | } | |
256 | ||
20474129 AK |
257 | /* Check for event */ |
258 | if (adapter->event_received) { | |
259 | adapter->event_received = false; | |
260 | mwifiex_process_event(adapter); | |
261 | } | |
262 | ||
5e6e3a92 BZ |
263 | /* Check for Cmd Resp */ |
264 | if (adapter->cmd_resp_received) { | |
265 | adapter->cmd_resp_received = false; | |
266 | mwifiex_process_cmdresp(adapter); | |
267 | ||
268 | /* call mwifiex back when init_fw is done */ | |
269 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { | |
270 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
271 | mwifiex_init_fw_complete(adapter); | |
272 | } | |
273 | } | |
274 | ||
5e6e3a92 BZ |
275 | /* Check if we need to confirm Sleep Request |
276 | received previously */ | |
277 | if (adapter->ps_state == PS_STATE_PRE_SLEEP) { | |
278 | if (!adapter->cmd_sent && !adapter->curr_cmd) | |
279 | mwifiex_check_ps_cond(adapter); | |
280 | } | |
281 | ||
282 | /* * The ps_state may have been changed during processing of | |
283 | * Sleep Request event. | |
284 | */ | |
f57c1edc YAP |
285 | if ((adapter->ps_state == PS_STATE_SLEEP) || |
286 | (adapter->ps_state == PS_STATE_PRE_SLEEP) || | |
287 | (adapter->ps_state == PS_STATE_SLEEP_CFM) || | |
288 | adapter->tx_lock_flag) | |
5e6e3a92 BZ |
289 | continue; |
290 | ||
291 | if (!adapter->cmd_sent && !adapter->curr_cmd) { | |
292 | if (mwifiex_exec_next_cmd(adapter) == -1) { | |
293 | ret = -1; | |
294 | break; | |
295 | } | |
296 | } | |
297 | ||
5ec39efa | 298 | if ((adapter->scan_chan_gap_enabled || |
d8d91253 | 299 | !adapter->scan_processing) && |
3249ba73 | 300 | !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) { |
5e6e3a92 BZ |
301 | mwifiex_wmm_process_tx(adapter); |
302 | if (adapter->hs_activated) { | |
303 | adapter->is_hs_configured = false; | |
304 | mwifiex_hs_activated_event | |
305 | (mwifiex_get_priv | |
306 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
307 | false); | |
308 | } | |
309 | } | |
310 | ||
311 | if (adapter->delay_null_pkt && !adapter->cmd_sent && | |
f57c1edc YAP |
312 | !adapter->curr_cmd && !is_command_pending(adapter) && |
313 | mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
314 | if (!mwifiex_send_null_packet |
315 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
316 | MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | | |
317 | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { | |
318 | adapter->delay_null_pkt = false; | |
319 | adapter->ps_state = PS_STATE_SLEEP; | |
320 | } | |
321 | break; | |
322 | } | |
323 | } while (true); | |
324 | ||
453b0c3f | 325 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
f73e557b AP |
326 | if (!adapter->delay_main_work && |
327 | (adapter->int_status || IS_CARD_RX_RCVD(adapter))) { | |
453b0c3f | 328 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
5e6e3a92 | 329 | goto process_start; |
453b0c3f | 330 | } |
5e6e3a92 | 331 | |
5e6e3a92 BZ |
332 | adapter->mwifiex_processing = false; |
333 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
334 | ||
335 | exit_main_proc: | |
336 | if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) | |
337 | mwifiex_shutdown_drv(adapter); | |
338 | return ret; | |
339 | } | |
601216e1 | 340 | EXPORT_SYMBOL_GPL(mwifiex_main_process); |
5e6e3a92 | 341 | |
5e6e3a92 BZ |
342 | /* |
343 | * This function frees the adapter structure. | |
344 | * | |
345 | * Additionally, this closes the netlink socket, frees the timers | |
346 | * and private structures. | |
347 | */ | |
348 | static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
349 | { | |
350 | if (!adapter) { | |
351 | pr_err("%s: adapter is NULL\n", __func__); | |
352 | return; | |
353 | } | |
354 | ||
355 | mwifiex_unregister(adapter); | |
356 | pr_debug("info: %s: free adapter\n", __func__); | |
357 | } | |
358 | ||
6b41f941 AK |
359 | /* |
360 | * This function cancels all works in the queue and destroys | |
361 | * the main workqueue. | |
362 | */ | |
363 | static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) | |
364 | { | |
365 | flush_workqueue(adapter->workqueue); | |
366 | destroy_workqueue(adapter->workqueue); | |
367 | adapter->workqueue = NULL; | |
6e251174 AP |
368 | |
369 | if (adapter->rx_workqueue) { | |
370 | flush_workqueue(adapter->rx_workqueue); | |
371 | destroy_workqueue(adapter->rx_workqueue); | |
372 | adapter->rx_workqueue = NULL; | |
373 | } | |
6b41f941 AK |
374 | } |
375 | ||
5e6e3a92 | 376 | /* |
59a4cc25 | 377 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
378 | * |
379 | * The main initialization steps followed are - | |
380 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
381 | * - Issue the init commands to firmware |
382 | */ | |
59a4cc25 | 383 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 384 | { |
bec568ff | 385 | int ret; |
59a4cc25 AK |
386 | char fmt[64]; |
387 | struct mwifiex_private *priv; | |
388 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 389 | struct mwifiex_fw_image fw; |
c3afd99f AK |
390 | struct semaphore *sem = adapter->card_sem; |
391 | bool init_failed = false; | |
68b76e99 | 392 | struct wireless_dev *wdev; |
5e6e3a92 | 393 | |
59a4cc25 AK |
394 | if (!firmware) { |
395 | dev_err(adapter->dev, | |
396 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 397 | goto err_dnld_fw; |
5e6e3a92 | 398 | } |
59a4cc25 AK |
399 | |
400 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
401 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
402 | fw.fw_buf = (u8 *) adapter->firmware->data; |
403 | fw.fw_len = adapter->firmware->size; | |
404 | ||
4daffe35 AK |
405 | if (adapter->if_ops.dnld_fw) |
406 | ret = adapter->if_ops.dnld_fw(adapter, &fw); | |
407 | else | |
408 | ret = mwifiex_dnld_fw(adapter, &fw); | |
5e6e3a92 | 409 | if (ret == -1) |
6b41f941 | 410 | goto err_dnld_fw; |
5e6e3a92 BZ |
411 | |
412 | dev_notice(adapter->dev, "WLAN FW is active\n"); | |
413 | ||
388ec385 AK |
414 | if (cal_data_cfg) { |
415 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
416 | adapter->dev)) < 0) | |
417 | dev_err(adapter->dev, | |
418 | "Cal data request_firmware() failed\n"); | |
419 | } | |
420 | ||
232fde06 | 421 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
422 | if (adapter->if_ops.enable_int) { |
423 | if (adapter->if_ops.enable_int(adapter)) | |
424 | goto err_dnld_fw; | |
425 | } | |
232fde06 | 426 | |
5e6e3a92 BZ |
427 | adapter->init_wait_q_woken = false; |
428 | ret = mwifiex_init_fw(adapter); | |
429 | if (ret == -1) { | |
6b41f941 | 430 | goto err_init_fw; |
5e6e3a92 BZ |
431 | } else if (!ret) { |
432 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
433 | goto done; | |
434 | } | |
435 | /* Wait for mwifiex_init to complete */ | |
436 | wait_event_interruptible(adapter->init_wait_q, | |
437 | adapter->init_wait_q_woken); | |
59a4cc25 | 438 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) |
6b41f941 | 439 | goto err_init_fw; |
59a4cc25 | 440 | |
d6bffe8b AP |
441 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
442 | if (mwifiex_register_cfg80211(adapter)) { | |
59a4cc25 | 443 | dev_err(adapter->dev, "cannot register with cfg80211\n"); |
d1af2943 | 444 | goto err_init_fw; |
59a4cc25 AK |
445 | } |
446 | ||
bf354433 AP |
447 | if (mwifiex_init_channel_scan_gap(adapter)) { |
448 | dev_err(adapter->dev, "could not init channel stats table\n"); | |
449 | goto err_init_fw; | |
450 | } | |
451 | ||
59a4cc25 AK |
452 | rtnl_lock(); |
453 | /* Create station interface by default */ | |
68b76e99 AK |
454 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", |
455 | NL80211_IFTYPE_STATION, NULL, NULL); | |
456 | if (IS_ERR(wdev)) { | |
59a4cc25 | 457 | dev_err(adapter->dev, "cannot create default STA interface\n"); |
bec568ff | 458 | rtnl_unlock(); |
59a4cc25 | 459 | goto err_add_intf; |
5e6e3a92 | 460 | } |
59a4cc25 AK |
461 | rtnl_unlock(); |
462 | ||
463 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
464 | dev_notice(adapter->dev, "driver_version = %s\n", fmt); | |
465 | goto done; | |
5e6e3a92 | 466 | |
59a4cc25 | 467 | err_add_intf: |
6b41f941 AK |
468 | wiphy_unregister(adapter->wiphy); |
469 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 470 | err_init_fw: |
232fde06 DD |
471 | if (adapter->if_ops.disable_int) |
472 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 473 | err_dnld_fw: |
59a4cc25 | 474 | pr_debug("info: %s: unregister device\n", __func__); |
6b41f941 AK |
475 | if (adapter->if_ops.unregister_dev) |
476 | adapter->if_ops.unregister_dev(adapter); | |
477 | ||
478 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || | |
479 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
480 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
481 | adapter->init_wait_q_woken = false; | |
482 | ||
483 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
484 | wait_event_interruptible(adapter->init_wait_q, | |
485 | adapter->init_wait_q_woken); | |
486 | } | |
487 | adapter->surprise_removed = true; | |
488 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 489 | init_failed = true; |
5e6e3a92 | 490 | done: |
388ec385 AK |
491 | if (adapter->cal_data) { |
492 | release_firmware(adapter->cal_data); | |
493 | adapter->cal_data = NULL; | |
494 | } | |
c3afd99f AK |
495 | if (adapter->firmware) { |
496 | release_firmware(adapter->firmware); | |
497 | adapter->firmware = NULL; | |
498 | } | |
c3afd99f AK |
499 | if (init_failed) |
500 | mwifiex_free_adapter(adapter); | |
501 | up(sem); | |
59a4cc25 AK |
502 | return; |
503 | } | |
504 | ||
505 | /* | |
506 | * This function initializes the hardware and gets firmware. | |
507 | */ | |
508 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter) | |
509 | { | |
510 | int ret; | |
511 | ||
59a4cc25 AK |
512 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, |
513 | adapter->dev, GFP_KERNEL, adapter, | |
514 | mwifiex_fw_dpc); | |
515 | if (ret < 0) | |
516 | dev_err(adapter->dev, | |
517 | "request_firmware_nowait() returned error %d\n", ret); | |
5e6e3a92 BZ |
518 | return ret; |
519 | } | |
520 | ||
5e6e3a92 BZ |
521 | /* |
522 | * CFG802.11 network device handler for open. | |
523 | * | |
524 | * Starts the data queue. | |
525 | */ | |
526 | static int | |
527 | mwifiex_open(struct net_device *dev) | |
528 | { | |
bbea3bc4 | 529 | netif_tx_start_all_queues(dev); |
5e6e3a92 BZ |
530 | return 0; |
531 | } | |
532 | ||
533 | /* | |
534 | * CFG802.11 network device handler for close. | |
535 | */ | |
536 | static int | |
537 | mwifiex_close(struct net_device *dev) | |
538 | { | |
f162cac8 AK |
539 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
540 | ||
541 | if (priv->scan_request) { | |
542 | dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n"); | |
543 | cfg80211_scan_done(priv->scan_request, 1); | |
544 | priv->scan_request = NULL; | |
75ab753d | 545 | priv->scan_aborting = true; |
f162cac8 AK |
546 | } |
547 | ||
5e6e3a92 BZ |
548 | return 0; |
549 | } | |
550 | ||
e39faa73 SP |
551 | /* |
552 | * Add buffer into wmm tx queue and queue work to transmit it. | |
553 | */ | |
554 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
555 | { | |
47411a06 AP |
556 | struct netdev_queue *txq; |
557 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
558 | ||
559 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
560 | txq = netdev_get_tx_queue(priv->netdev, index); | |
561 | if (!netif_tx_queue_stopped(txq)) { | |
562 | netif_tx_stop_queue(txq); | |
563 | dev_dbg(priv->adapter->dev, "stop queue: %d\n", index); | |
564 | } | |
565 | } | |
566 | ||
e39faa73 | 567 | atomic_inc(&priv->adapter->tx_pending); |
47411a06 | 568 | mwifiex_wmm_add_buf_txqueue(priv, skb); |
e39faa73 | 569 | |
e39faa73 SP |
570 | queue_work(priv->adapter->workqueue, &priv->adapter->main_work); |
571 | ||
572 | return 0; | |
573 | } | |
574 | ||
5e6e3a92 BZ |
575 | /* |
576 | * CFG802.11 network device handler for data transmission. | |
577 | */ | |
578 | static int | |
579 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
580 | { | |
581 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 582 | struct sk_buff *new_skb; |
5e6e3a92 BZ |
583 | struct mwifiex_txinfo *tx_info; |
584 | ||
9da9a3b2 | 585 | dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n", |
f57c1edc | 586 | jiffies, priv->bss_type, priv->bss_num); |
5e6e3a92 BZ |
587 | |
588 | if (priv->adapter->surprise_removed) { | |
b53575ec | 589 | kfree_skb(skb); |
5e6e3a92 BZ |
590 | priv->stats.tx_dropped++; |
591 | return 0; | |
592 | } | |
593 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
594 | dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 595 | kfree_skb(skb); |
5e6e3a92 BZ |
596 | priv->stats.tx_dropped++; |
597 | return 0; | |
598 | } | |
599 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
600 | dev_dbg(priv->adapter->dev, | |
601 | "data: Tx: insufficient skb headroom %d\n", | |
f57c1edc | 602 | skb_headroom(skb)); |
5e6e3a92 BZ |
603 | /* Insufficient skb headroom - allocate a new skb */ |
604 | new_skb = | |
605 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
606 | if (unlikely(!new_skb)) { | |
607 | dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n"); | |
b53575ec | 608 | kfree_skb(skb); |
5e6e3a92 BZ |
609 | priv->stats.tx_dropped++; |
610 | return 0; | |
611 | } | |
612 | kfree_skb(skb); | |
613 | skb = new_skb; | |
614 | dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n", | |
f57c1edc | 615 | skb_headroom(skb)); |
5e6e3a92 BZ |
616 | } |
617 | ||
618 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
d76744a9 | 619 | memset(tx_info, 0, sizeof(*tx_info)); |
9da9a3b2 YAP |
620 | tx_info->bss_num = priv->bss_num; |
621 | tx_info->bss_type = priv->bss_type; | |
a1ed4849 | 622 | tx_info->pkt_len = skb->len; |
47411a06 AP |
623 | |
624 | /* Record the current time the packet was queued; used to | |
625 | * determine the amount of time the packet was queued in | |
626 | * the driver before it was sent to the firmware. | |
627 | * The delay is then sent along with the packet to the | |
628 | * firmware for aggregate delay calculation for stats and | |
629 | * MSDU lifetime expiry. | |
630 | */ | |
c64800e7 | 631 | __net_timestamp(skb); |
5e6e3a92 | 632 | |
e39faa73 | 633 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
634 | |
635 | return 0; | |
636 | } | |
637 | ||
638 | /* | |
639 | * CFG802.11 network device handler for setting MAC address. | |
640 | */ | |
641 | static int | |
642 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
643 | { | |
644 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 645 | struct sockaddr *hw_addr = addr; |
270e58e8 | 646 | int ret; |
5e6e3a92 BZ |
647 | |
648 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
649 | ||
600f5d90 | 650 | /* Send request to firmware */ |
fa0ecbb9 BZ |
651 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
652 | HostCmd_ACT_GEN_SET, 0, NULL, true); | |
600f5d90 AK |
653 | |
654 | if (!ret) | |
655 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
656 | else | |
f57c1edc YAP |
657 | dev_err(priv->adapter->dev, |
658 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 659 | |
5e6e3a92 BZ |
660 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
661 | ||
600f5d90 | 662 | return ret; |
5e6e3a92 BZ |
663 | } |
664 | ||
665 | /* | |
666 | * CFG802.11 network device handler for setting multicast list. | |
667 | */ | |
668 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
669 | { | |
670 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
671 | struct mwifiex_multicast_list mcast_list; |
672 | ||
673 | if (dev->flags & IFF_PROMISC) { | |
674 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
675 | } else if (dev->flags & IFF_ALLMULTI || | |
676 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
677 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
678 | } else { | |
679 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
680 | mcast_list.num_multicast_addr = |
681 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
682 | } |
683 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
684 | } |
685 | ||
686 | /* | |
687 | * CFG802.11 network device handler for transmission timeout. | |
688 | */ | |
689 | static void | |
690 | mwifiex_tx_timeout(struct net_device *dev) | |
691 | { | |
692 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
693 | ||
5e6e3a92 | 694 | priv->num_tx_timeout++; |
8908c7d5 AN |
695 | priv->tx_timeout_cnt++; |
696 | dev_err(priv->adapter->dev, | |
697 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
698 | jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num); | |
699 | mwifiex_set_trans_start(dev); | |
700 | ||
701 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
702 | priv->adapter->if_ops.card_reset) { | |
703 | dev_err(priv->adapter->dev, | |
704 | "tx_timeout_cnt exceeds threshold. Triggering card reset!\n"); | |
705 | priv->adapter->if_ops.card_reset(priv->adapter); | |
706 | } | |
5e6e3a92 BZ |
707 | } |
708 | ||
709 | /* | |
710 | * CFG802.11 network device handler for statistics retrieval. | |
711 | */ | |
712 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
713 | { | |
714 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
715 | ||
716 | return &priv->stats; | |
717 | } | |
718 | ||
47411a06 | 719 | static u16 |
f663dd9a | 720 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 721 | void *accel_priv, select_queue_fallback_t fallback) |
47411a06 | 722 | { |
fa9ffc74 | 723 | skb->priority = cfg80211_classify8021d(skb, NULL); |
47411a06 AP |
724 | return mwifiex_1d_to_wmm_queue[skb->priority]; |
725 | } | |
726 | ||
5e6e3a92 BZ |
727 | /* Network device handlers */ |
728 | static const struct net_device_ops mwifiex_netdev_ops = { | |
729 | .ndo_open = mwifiex_open, | |
730 | .ndo_stop = mwifiex_close, | |
731 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
732 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
733 | .ndo_tx_timeout = mwifiex_tx_timeout, | |
734 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 735 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 736 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
737 | }; |
738 | ||
739 | /* | |
740 | * This function initializes the private structure parameters. | |
741 | * | |
742 | * The following wait queues are initialized - | |
743 | * - IOCTL wait queue | |
744 | * - Command wait queue | |
745 | * - Statistics wait queue | |
746 | * | |
747 | * ...and the following default parameters are set - | |
748 | * - Current key index : Set to 0 | |
749 | * - Rate index : Set to auto | |
750 | * - Media connected : Set to disconnected | |
751 | * - Adhoc link sensed : Set to false | |
752 | * - Nick name : Set to null | |
753 | * - Number of Tx timeout : Set to 0 | |
754 | * - Device address : Set to current address | |
755 | * | |
756 | * In addition, the CFG80211 work queue is also created. | |
757 | */ | |
93a1df48 YAP |
758 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
759 | struct net_device *dev) | |
5e6e3a92 BZ |
760 | { |
761 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 762 | dev->destructor = free_netdev; |
5e6e3a92 | 763 | /* Initialize private structure */ |
5e6e3a92 BZ |
764 | priv->current_key_index = 0; |
765 | priv->media_connected = false; | |
766 | memset(&priv->nick_name, 0, sizeof(priv->nick_name)); | |
ede98bfa AP |
767 | memset(priv->mgmt_ie, 0, |
768 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
769 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
770 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
771 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
772 | priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK; | |
5e6e3a92 | 773 | priv->num_tx_timeout = 0; |
5e6e3a92 BZ |
774 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
775 | } | |
776 | ||
5e6e3a92 BZ |
777 | /* |
778 | * This function check if command is pending. | |
779 | */ | |
780 | int is_command_pending(struct mwifiex_adapter *adapter) | |
781 | { | |
782 | unsigned long flags; | |
783 | int is_cmd_pend_q_empty; | |
784 | ||
785 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
786 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
787 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
788 | ||
789 | return !is_cmd_pend_q_empty; | |
790 | } | |
791 | ||
6e251174 AP |
792 | /* |
793 | * This is the RX work queue function. | |
794 | * | |
795 | * It handles the RX operations. | |
796 | */ | |
797 | static void mwifiex_rx_work_queue(struct work_struct *work) | |
798 | { | |
799 | struct mwifiex_adapter *adapter = | |
800 | container_of(work, struct mwifiex_adapter, rx_work); | |
801 | ||
802 | if (adapter->surprise_removed) | |
803 | return; | |
804 | mwifiex_process_rx(adapter); | |
805 | } | |
806 | ||
5e6e3a92 BZ |
807 | /* |
808 | * This is the main work queue function. | |
809 | * | |
810 | * It handles the main process, which in turn handles the complete | |
811 | * driver operations. | |
812 | */ | |
813 | static void mwifiex_main_work_queue(struct work_struct *work) | |
814 | { | |
815 | struct mwifiex_adapter *adapter = | |
816 | container_of(work, struct mwifiex_adapter, main_work); | |
817 | ||
818 | if (adapter->surprise_removed) | |
819 | return; | |
820 | mwifiex_main_process(adapter); | |
821 | } | |
822 | ||
5e6e3a92 BZ |
823 | /* |
824 | * This function adds the card. | |
825 | * | |
826 | * This function follows the following major steps to set up the device - | |
827 | * - Initialize software. This includes probing the card, registering | |
828 | * the interface operations table, and allocating/initializing the | |
829 | * adapter structure | |
830 | * - Set up the netlink socket | |
831 | * - Create and start the main work queue | |
832 | * - Register the device | |
833 | * - Initialize firmware and hardware | |
834 | * - Add logical interfaces | |
835 | */ | |
836 | int | |
837 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 838 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 839 | { |
2be7859f | 840 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
841 | |
842 | if (down_interruptible(sem)) | |
843 | goto exit_sem_err; | |
844 | ||
93a1df48 | 845 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
846 | pr_err("%s: software init failed\n", __func__); |
847 | goto err_init_sw; | |
848 | } | |
849 | ||
d930faee | 850 | adapter->iface_type = iface_type; |
6b41f941 | 851 | adapter->card_sem = sem; |
d930faee | 852 | |
5e6e3a92 | 853 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
854 | adapter->surprise_removed = false; |
855 | init_waitqueue_head(&adapter->init_wait_q); | |
856 | adapter->is_suspended = false; | |
857 | adapter->hs_activated = false; | |
858 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 | 859 | init_waitqueue_head(&adapter->cmd_wait_q.wait); |
600f5d90 | 860 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 861 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 862 | |
ec4a16b4 | 863 | if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) { |
6e251174 AP |
864 | adapter->rx_work_enabled = true; |
865 | pr_notice("rx work enabled, cpus %d\n", num_possible_cpus()); | |
866 | } | |
867 | ||
448a71cc AK |
868 | adapter->workqueue = |
869 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
870 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
5e6e3a92 BZ |
871 | if (!adapter->workqueue) |
872 | goto err_kmalloc; | |
873 | ||
874 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
6e251174 AP |
875 | |
876 | if (adapter->rx_work_enabled) { | |
877 | adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", | |
878 | WQ_HIGHPRI | | |
879 | WQ_MEM_RECLAIM | | |
880 | WQ_UNBOUND, 1); | |
881 | if (!adapter->rx_workqueue) | |
882 | goto err_kmalloc; | |
883 | ||
884 | INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); | |
885 | } | |
886 | ||
92c2538f AK |
887 | if (adapter->if_ops.iface_work) |
888 | INIT_WORK(&adapter->iface_work, adapter->if_ops.iface_work); | |
5e6e3a92 BZ |
889 | |
890 | /* Register the device. Fill up the private data structure with relevant | |
232fde06 | 891 | information from the card. */ |
5e6e3a92 BZ |
892 | if (adapter->if_ops.register_dev(adapter)) { |
893 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
894 | goto err_registerdev; | |
895 | } | |
896 | ||
5e6e3a92 BZ |
897 | if (mwifiex_init_hw_fw(adapter)) { |
898 | pr_err("%s: firmware init failed\n", __func__); | |
899 | goto err_init_fw; | |
900 | } | |
2be7859f | 901 | |
5e6e3a92 BZ |
902 | return 0; |
903 | ||
5e6e3a92 | 904 | err_init_fw: |
5e6e3a92 | 905 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
906 | if (adapter->if_ops.unregister_dev) |
907 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
908 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || |
909 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
910 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
911 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
912 | |
913 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
914 | wait_event_interruptible(adapter->init_wait_q, |
915 | adapter->init_wait_q_woken); | |
916 | } | |
6b41f941 AK |
917 | err_registerdev: |
918 | adapter->surprise_removed = true; | |
919 | mwifiex_terminate_workqueue(adapter); | |
920 | err_kmalloc: | |
5e6e3a92 BZ |
921 | mwifiex_free_adapter(adapter); |
922 | ||
923 | err_init_sw: | |
924 | up(sem); | |
925 | ||
926 | exit_sem_err: | |
927 | return -1; | |
928 | } | |
929 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
930 | ||
931 | /* | |
932 | * This function removes the card. | |
933 | * | |
934 | * This function follows the following major steps to remove the device - | |
935 | * - Stop data traffic | |
936 | * - Shutdown firmware | |
937 | * - Remove the logical interfaces | |
938 | * - Terminate the work queue | |
939 | * - Unregister the device | |
940 | * - Free the adapter structure | |
941 | */ | |
942 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
943 | { | |
944 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
945 | int i; |
946 | ||
947 | if (down_interruptible(sem)) | |
948 | goto exit_sem_err; | |
949 | ||
950 | if (!adapter) | |
951 | goto exit_remove; | |
952 | ||
232fde06 DD |
953 | /* We can no longer handle interrupts once we start doing the teardown |
954 | * below. */ | |
955 | if (adapter->if_ops.disable_int) | |
956 | adapter->if_ops.disable_int(adapter); | |
957 | ||
5e6e3a92 BZ |
958 | adapter->surprise_removed = true; |
959 | ||
960 | /* Stop data */ | |
961 | for (i = 0; i < adapter->priv_num; i++) { | |
962 | priv = adapter->priv[i]; | |
93a1df48 | 963 | if (priv && priv->netdev) { |
47411a06 | 964 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
965 | if (netif_carrier_ok(priv->netdev)) |
966 | netif_carrier_off(priv->netdev); | |
967 | } | |
968 | } | |
969 | ||
970 | dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n"); | |
971 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
972 | |
973 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
974 | wait_event_interruptible(adapter->init_wait_q, |
975 | adapter->init_wait_q_woken); | |
976 | dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n"); | |
977 | if (atomic_read(&adapter->rx_pending) || | |
978 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 979 | atomic_read(&adapter->cmd_pending)) { |
5e6e3a92 | 980 | dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, " |
600f5d90 | 981 | "cmd_pending=%d\n", |
5e6e3a92 BZ |
982 | atomic_read(&adapter->rx_pending), |
983 | atomic_read(&adapter->tx_pending), | |
600f5d90 | 984 | atomic_read(&adapter->cmd_pending)); |
5e6e3a92 BZ |
985 | } |
986 | ||
93a1df48 YAP |
987 | for (i = 0; i < adapter->priv_num; i++) { |
988 | priv = adapter->priv[i]; | |
989 | ||
990 | if (!priv) | |
991 | continue; | |
992 | ||
993 | rtnl_lock(); | |
2da8cbf8 | 994 | if (priv->wdev && priv->netdev) |
84efbb84 | 995 | mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev); |
93a1df48 YAP |
996 | rtnl_unlock(); |
997 | } | |
998 | ||
c2868ade AK |
999 | wiphy_unregister(adapter->wiphy); |
1000 | wiphy_free(adapter->wiphy); | |
64b05e2f | 1001 | |
5e6e3a92 BZ |
1002 | mwifiex_terminate_workqueue(adapter); |
1003 | ||
1004 | /* Unregister device */ | |
1005 | dev_dbg(adapter->dev, "info: unregister device\n"); | |
4daffe35 AK |
1006 | if (adapter->if_ops.unregister_dev) |
1007 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
1008 | /* Free adapter structure */ |
1009 | dev_dbg(adapter->dev, "info: free adapter\n"); | |
1010 | mwifiex_free_adapter(adapter); | |
1011 | ||
1012 | exit_remove: | |
1013 | up(sem); | |
1014 | exit_sem_err: | |
1015 | return 0; | |
1016 | } | |
1017 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1018 | ||
1019 | /* | |
1020 | * This function initializes the module. | |
1021 | * | |
1022 | * The debug FS is also initialized if configured. | |
1023 | */ | |
1024 | static int | |
1025 | mwifiex_init_module(void) | |
1026 | { | |
1027 | #ifdef CONFIG_DEBUG_FS | |
1028 | mwifiex_debugfs_init(); | |
1029 | #endif | |
1030 | return 0; | |
1031 | } | |
1032 | ||
1033 | /* | |
1034 | * This function cleans up the module. | |
1035 | * | |
1036 | * The debug FS is removed if available. | |
1037 | */ | |
1038 | static void | |
1039 | mwifiex_cleanup_module(void) | |
1040 | { | |
1041 | #ifdef CONFIG_DEBUG_FS | |
1042 | mwifiex_debugfs_remove(); | |
1043 | #endif | |
1044 | } | |
1045 | ||
1046 | module_init(mwifiex_init_module); | |
1047 | module_exit(mwifiex_cleanup_module); | |
1048 | ||
1049 | MODULE_AUTHOR("Marvell International Ltd."); | |
1050 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1051 | MODULE_VERSION(VERSION); | |
1052 | MODULE_LICENSE("GPL v2"); |