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; | |
4daffe35 | 181 | struct sk_buff *skb; |
5e6e3a92 BZ |
182 | |
183 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
184 | ||
185 | /* Check if already processing */ | |
186 | if (adapter->mwifiex_processing) { | |
187 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
188 | goto exit_main_proc; | |
189 | } else { | |
190 | adapter->mwifiex_processing = true; | |
191 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
192 | } | |
193 | process_start: | |
194 | do { | |
195 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) || | |
196 | (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)) | |
197 | break; | |
198 | ||
6e251174 AP |
199 | /* If we process interrupts first, it would increase RX pending |
200 | * even further. Avoid this by checking if rx_pending has | |
201 | * crossed high threshold and schedule rx work queue | |
202 | * and then process interrupts | |
203 | */ | |
204 | if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING) { | |
205 | adapter->delay_main_work = true; | |
206 | if (!adapter->rx_processing) | |
207 | queue_work(adapter->rx_workqueue, | |
208 | &adapter->rx_work); | |
209 | break; | |
210 | } | |
211 | ||
5e6e3a92 BZ |
212 | /* Handle pending interrupt if any */ |
213 | if (adapter->int_status) { | |
214 | if (adapter->hs_activated) | |
215 | mwifiex_process_hs_config(adapter); | |
4daffe35 AK |
216 | if (adapter->if_ops.process_int_status) |
217 | adapter->if_ops.process_int_status(adapter); | |
5e6e3a92 BZ |
218 | } |
219 | ||
6e251174 AP |
220 | if (adapter->rx_work_enabled && adapter->data_received) |
221 | queue_work(adapter->rx_workqueue, &adapter->rx_work); | |
222 | ||
5e6e3a92 BZ |
223 | /* Need to wake up the card ? */ |
224 | if ((adapter->ps_state == PS_STATE_SLEEP) && | |
225 | (adapter->pm_wakeup_card_req && | |
226 | !adapter->pm_wakeup_fw_try) && | |
f57c1edc YAP |
227 | (is_command_pending(adapter) || |
228 | !mwifiex_wmm_lists_empty(adapter))) { | |
5e6e3a92 BZ |
229 | adapter->pm_wakeup_fw_try = true; |
230 | adapter->if_ops.wakeup(adapter); | |
231 | continue; | |
232 | } | |
4daffe35 | 233 | |
5e6e3a92 | 234 | if (IS_CARD_RX_RCVD(adapter)) { |
6e251174 | 235 | adapter->data_received = false; |
5e6e3a92 BZ |
236 | adapter->pm_wakeup_fw_try = false; |
237 | if (adapter->ps_state == PS_STATE_SLEEP) | |
238 | adapter->ps_state = PS_STATE_AWAKE; | |
239 | } else { | |
240 | /* We have tried to wakeup the card already */ | |
241 | if (adapter->pm_wakeup_fw_try) | |
242 | break; | |
243 | if (adapter->ps_state != PS_STATE_AWAKE || | |
244 | adapter->tx_lock_flag) | |
245 | break; | |
246 | ||
5ec39efa | 247 | if ((!adapter->scan_chan_gap_enabled && |
5ec39efa | 248 | adapter->scan_processing) || adapter->data_sent || |
f57c1edc YAP |
249 | mwifiex_wmm_lists_empty(adapter)) { |
250 | if (adapter->cmd_sent || adapter->curr_cmd || | |
251 | (!is_command_pending(adapter))) | |
5e6e3a92 BZ |
252 | break; |
253 | } | |
254 | } | |
255 | ||
4daffe35 AK |
256 | /* Check Rx data for USB */ |
257 | if (adapter->iface_type == MWIFIEX_USB) | |
258 | while ((skb = skb_dequeue(&adapter->usb_rx_data_q))) | |
259 | mwifiex_handle_rx_packet(adapter, skb); | |
260 | ||
20474129 AK |
261 | /* Check for event */ |
262 | if (adapter->event_received) { | |
263 | adapter->event_received = false; | |
264 | mwifiex_process_event(adapter); | |
265 | } | |
266 | ||
5e6e3a92 BZ |
267 | /* Check for Cmd Resp */ |
268 | if (adapter->cmd_resp_received) { | |
269 | adapter->cmd_resp_received = false; | |
270 | mwifiex_process_cmdresp(adapter); | |
271 | ||
272 | /* call mwifiex back when init_fw is done */ | |
273 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { | |
274 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
275 | mwifiex_init_fw_complete(adapter); | |
276 | } | |
277 | } | |
278 | ||
5e6e3a92 BZ |
279 | /* Check if we need to confirm Sleep Request |
280 | received previously */ | |
281 | if (adapter->ps_state == PS_STATE_PRE_SLEEP) { | |
282 | if (!adapter->cmd_sent && !adapter->curr_cmd) | |
283 | mwifiex_check_ps_cond(adapter); | |
284 | } | |
285 | ||
286 | /* * The ps_state may have been changed during processing of | |
287 | * Sleep Request event. | |
288 | */ | |
f57c1edc YAP |
289 | if ((adapter->ps_state == PS_STATE_SLEEP) || |
290 | (adapter->ps_state == PS_STATE_PRE_SLEEP) || | |
291 | (adapter->ps_state == PS_STATE_SLEEP_CFM) || | |
292 | adapter->tx_lock_flag) | |
5e6e3a92 BZ |
293 | continue; |
294 | ||
295 | if (!adapter->cmd_sent && !adapter->curr_cmd) { | |
296 | if (mwifiex_exec_next_cmd(adapter) == -1) { | |
297 | ret = -1; | |
298 | break; | |
299 | } | |
300 | } | |
301 | ||
5ec39efa | 302 | if ((adapter->scan_chan_gap_enabled || |
d8d91253 | 303 | !adapter->scan_processing) && |
3249ba73 | 304 | !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) { |
5e6e3a92 BZ |
305 | mwifiex_wmm_process_tx(adapter); |
306 | if (adapter->hs_activated) { | |
307 | adapter->is_hs_configured = false; | |
308 | mwifiex_hs_activated_event | |
309 | (mwifiex_get_priv | |
310 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
311 | false); | |
312 | } | |
313 | } | |
314 | ||
315 | if (adapter->delay_null_pkt && !adapter->cmd_sent && | |
f57c1edc YAP |
316 | !adapter->curr_cmd && !is_command_pending(adapter) && |
317 | mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
318 | if (!mwifiex_send_null_packet |
319 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
320 | MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | | |
321 | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { | |
322 | adapter->delay_null_pkt = false; | |
323 | adapter->ps_state = PS_STATE_SLEEP; | |
324 | } | |
325 | break; | |
326 | } | |
327 | } while (true); | |
328 | ||
453b0c3f | 329 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
f73e557b AP |
330 | if (!adapter->delay_main_work && |
331 | (adapter->int_status || IS_CARD_RX_RCVD(adapter))) { | |
453b0c3f | 332 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
5e6e3a92 | 333 | goto process_start; |
453b0c3f | 334 | } |
5e6e3a92 | 335 | |
5e6e3a92 BZ |
336 | adapter->mwifiex_processing = false; |
337 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
338 | ||
339 | exit_main_proc: | |
340 | if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) | |
341 | mwifiex_shutdown_drv(adapter); | |
342 | return ret; | |
343 | } | |
601216e1 | 344 | EXPORT_SYMBOL_GPL(mwifiex_main_process); |
5e6e3a92 | 345 | |
5e6e3a92 BZ |
346 | /* |
347 | * This function frees the adapter structure. | |
348 | * | |
349 | * Additionally, this closes the netlink socket, frees the timers | |
350 | * and private structures. | |
351 | */ | |
352 | static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
353 | { | |
354 | if (!adapter) { | |
355 | pr_err("%s: adapter is NULL\n", __func__); | |
356 | return; | |
357 | } | |
358 | ||
359 | mwifiex_unregister(adapter); | |
360 | pr_debug("info: %s: free adapter\n", __func__); | |
361 | } | |
362 | ||
6b41f941 AK |
363 | /* |
364 | * This function cancels all works in the queue and destroys | |
365 | * the main workqueue. | |
366 | */ | |
367 | static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) | |
368 | { | |
369 | flush_workqueue(adapter->workqueue); | |
370 | destroy_workqueue(adapter->workqueue); | |
371 | adapter->workqueue = NULL; | |
6e251174 AP |
372 | |
373 | if (adapter->rx_workqueue) { | |
374 | flush_workqueue(adapter->rx_workqueue); | |
375 | destroy_workqueue(adapter->rx_workqueue); | |
376 | adapter->rx_workqueue = NULL; | |
377 | } | |
6b41f941 AK |
378 | } |
379 | ||
5e6e3a92 | 380 | /* |
59a4cc25 | 381 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
382 | * |
383 | * The main initialization steps followed are - | |
384 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
385 | * - Issue the init commands to firmware |
386 | */ | |
59a4cc25 | 387 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 388 | { |
bec568ff | 389 | int ret; |
59a4cc25 AK |
390 | char fmt[64]; |
391 | struct mwifiex_private *priv; | |
392 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 393 | struct mwifiex_fw_image fw; |
c3afd99f AK |
394 | struct semaphore *sem = adapter->card_sem; |
395 | bool init_failed = false; | |
68b76e99 | 396 | struct wireless_dev *wdev; |
5e6e3a92 | 397 | |
59a4cc25 AK |
398 | if (!firmware) { |
399 | dev_err(adapter->dev, | |
400 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 401 | goto err_dnld_fw; |
5e6e3a92 | 402 | } |
59a4cc25 AK |
403 | |
404 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
405 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
406 | fw.fw_buf = (u8 *) adapter->firmware->data; |
407 | fw.fw_len = adapter->firmware->size; | |
408 | ||
4daffe35 AK |
409 | if (adapter->if_ops.dnld_fw) |
410 | ret = adapter->if_ops.dnld_fw(adapter, &fw); | |
411 | else | |
412 | ret = mwifiex_dnld_fw(adapter, &fw); | |
5e6e3a92 | 413 | if (ret == -1) |
6b41f941 | 414 | goto err_dnld_fw; |
5e6e3a92 BZ |
415 | |
416 | dev_notice(adapter->dev, "WLAN FW is active\n"); | |
417 | ||
388ec385 AK |
418 | if (cal_data_cfg) { |
419 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
420 | adapter->dev)) < 0) | |
421 | dev_err(adapter->dev, | |
422 | "Cal data request_firmware() failed\n"); | |
423 | } | |
424 | ||
232fde06 | 425 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
426 | if (adapter->if_ops.enable_int) { |
427 | if (adapter->if_ops.enable_int(adapter)) | |
428 | goto err_dnld_fw; | |
429 | } | |
232fde06 | 430 | |
5e6e3a92 BZ |
431 | adapter->init_wait_q_woken = false; |
432 | ret = mwifiex_init_fw(adapter); | |
433 | if (ret == -1) { | |
6b41f941 | 434 | goto err_init_fw; |
5e6e3a92 BZ |
435 | } else if (!ret) { |
436 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
437 | goto done; | |
438 | } | |
439 | /* Wait for mwifiex_init to complete */ | |
440 | wait_event_interruptible(adapter->init_wait_q, | |
441 | adapter->init_wait_q_woken); | |
59a4cc25 | 442 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) |
6b41f941 | 443 | goto err_init_fw; |
59a4cc25 | 444 | |
d6bffe8b AP |
445 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
446 | if (mwifiex_register_cfg80211(adapter)) { | |
59a4cc25 | 447 | dev_err(adapter->dev, "cannot register with cfg80211\n"); |
d1af2943 | 448 | goto err_init_fw; |
59a4cc25 AK |
449 | } |
450 | ||
bf354433 AP |
451 | if (mwifiex_init_channel_scan_gap(adapter)) { |
452 | dev_err(adapter->dev, "could not init channel stats table\n"); | |
453 | goto err_init_fw; | |
454 | } | |
455 | ||
59a4cc25 AK |
456 | rtnl_lock(); |
457 | /* Create station interface by default */ | |
68b76e99 AK |
458 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", |
459 | NL80211_IFTYPE_STATION, NULL, NULL); | |
460 | if (IS_ERR(wdev)) { | |
59a4cc25 | 461 | dev_err(adapter->dev, "cannot create default STA interface\n"); |
bec568ff | 462 | rtnl_unlock(); |
59a4cc25 | 463 | goto err_add_intf; |
5e6e3a92 | 464 | } |
59a4cc25 AK |
465 | rtnl_unlock(); |
466 | ||
467 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
468 | dev_notice(adapter->dev, "driver_version = %s\n", fmt); | |
469 | goto done; | |
5e6e3a92 | 470 | |
59a4cc25 | 471 | err_add_intf: |
6b41f941 AK |
472 | wiphy_unregister(adapter->wiphy); |
473 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 474 | err_init_fw: |
232fde06 DD |
475 | if (adapter->if_ops.disable_int) |
476 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 477 | err_dnld_fw: |
59a4cc25 | 478 | pr_debug("info: %s: unregister device\n", __func__); |
6b41f941 AK |
479 | if (adapter->if_ops.unregister_dev) |
480 | adapter->if_ops.unregister_dev(adapter); | |
481 | ||
482 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || | |
483 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
484 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
485 | adapter->init_wait_q_woken = false; | |
486 | ||
487 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
488 | wait_event_interruptible(adapter->init_wait_q, | |
489 | adapter->init_wait_q_woken); | |
490 | } | |
491 | adapter->surprise_removed = true; | |
492 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 493 | init_failed = true; |
5e6e3a92 | 494 | done: |
388ec385 AK |
495 | if (adapter->cal_data) { |
496 | release_firmware(adapter->cal_data); | |
497 | adapter->cal_data = NULL; | |
498 | } | |
c3afd99f AK |
499 | if (adapter->firmware) { |
500 | release_firmware(adapter->firmware); | |
501 | adapter->firmware = NULL; | |
502 | } | |
c3afd99f AK |
503 | if (init_failed) |
504 | mwifiex_free_adapter(adapter); | |
505 | up(sem); | |
59a4cc25 AK |
506 | return; |
507 | } | |
508 | ||
509 | /* | |
510 | * This function initializes the hardware and gets firmware. | |
511 | */ | |
512 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter) | |
513 | { | |
514 | int ret; | |
515 | ||
59a4cc25 AK |
516 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, |
517 | adapter->dev, GFP_KERNEL, adapter, | |
518 | mwifiex_fw_dpc); | |
519 | if (ret < 0) | |
520 | dev_err(adapter->dev, | |
521 | "request_firmware_nowait() returned error %d\n", ret); | |
5e6e3a92 BZ |
522 | return ret; |
523 | } | |
524 | ||
5e6e3a92 BZ |
525 | /* |
526 | * CFG802.11 network device handler for open. | |
527 | * | |
528 | * Starts the data queue. | |
529 | */ | |
530 | static int | |
531 | mwifiex_open(struct net_device *dev) | |
532 | { | |
bbea3bc4 | 533 | netif_tx_start_all_queues(dev); |
5e6e3a92 BZ |
534 | return 0; |
535 | } | |
536 | ||
537 | /* | |
538 | * CFG802.11 network device handler for close. | |
539 | */ | |
540 | static int | |
541 | mwifiex_close(struct net_device *dev) | |
542 | { | |
f162cac8 AK |
543 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
544 | ||
545 | if (priv->scan_request) { | |
546 | dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n"); | |
547 | cfg80211_scan_done(priv->scan_request, 1); | |
548 | priv->scan_request = NULL; | |
75ab753d | 549 | priv->scan_aborting = true; |
f162cac8 AK |
550 | } |
551 | ||
5e6e3a92 BZ |
552 | return 0; |
553 | } | |
554 | ||
e39faa73 SP |
555 | /* |
556 | * Add buffer into wmm tx queue and queue work to transmit it. | |
557 | */ | |
558 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
559 | { | |
47411a06 AP |
560 | struct netdev_queue *txq; |
561 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
562 | ||
563 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
564 | txq = netdev_get_tx_queue(priv->netdev, index); | |
565 | if (!netif_tx_queue_stopped(txq)) { | |
566 | netif_tx_stop_queue(txq); | |
567 | dev_dbg(priv->adapter->dev, "stop queue: %d\n", index); | |
568 | } | |
569 | } | |
570 | ||
e39faa73 | 571 | atomic_inc(&priv->adapter->tx_pending); |
47411a06 | 572 | mwifiex_wmm_add_buf_txqueue(priv, skb); |
e39faa73 | 573 | |
e39faa73 SP |
574 | queue_work(priv->adapter->workqueue, &priv->adapter->main_work); |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
5e6e3a92 BZ |
579 | /* |
580 | * CFG802.11 network device handler for data transmission. | |
581 | */ | |
582 | static int | |
583 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
584 | { | |
585 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 586 | struct sk_buff *new_skb; |
5e6e3a92 BZ |
587 | struct mwifiex_txinfo *tx_info; |
588 | ||
9da9a3b2 | 589 | dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n", |
f57c1edc | 590 | jiffies, priv->bss_type, priv->bss_num); |
5e6e3a92 BZ |
591 | |
592 | if (priv->adapter->surprise_removed) { | |
b53575ec | 593 | kfree_skb(skb); |
5e6e3a92 BZ |
594 | priv->stats.tx_dropped++; |
595 | return 0; | |
596 | } | |
597 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
598 | dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 599 | kfree_skb(skb); |
5e6e3a92 BZ |
600 | priv->stats.tx_dropped++; |
601 | return 0; | |
602 | } | |
603 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
604 | dev_dbg(priv->adapter->dev, | |
605 | "data: Tx: insufficient skb headroom %d\n", | |
f57c1edc | 606 | skb_headroom(skb)); |
5e6e3a92 BZ |
607 | /* Insufficient skb headroom - allocate a new skb */ |
608 | new_skb = | |
609 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
610 | if (unlikely(!new_skb)) { | |
611 | dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n"); | |
b53575ec | 612 | kfree_skb(skb); |
5e6e3a92 BZ |
613 | priv->stats.tx_dropped++; |
614 | return 0; | |
615 | } | |
616 | kfree_skb(skb); | |
617 | skb = new_skb; | |
618 | dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n", | |
f57c1edc | 619 | skb_headroom(skb)); |
5e6e3a92 BZ |
620 | } |
621 | ||
622 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
d76744a9 | 623 | memset(tx_info, 0, sizeof(*tx_info)); |
9da9a3b2 YAP |
624 | tx_info->bss_num = priv->bss_num; |
625 | tx_info->bss_type = priv->bss_type; | |
a1ed4849 | 626 | tx_info->pkt_len = skb->len; |
47411a06 AP |
627 | |
628 | /* Record the current time the packet was queued; used to | |
629 | * determine the amount of time the packet was queued in | |
630 | * the driver before it was sent to the firmware. | |
631 | * The delay is then sent along with the packet to the | |
632 | * firmware for aggregate delay calculation for stats and | |
633 | * MSDU lifetime expiry. | |
634 | */ | |
c64800e7 | 635 | __net_timestamp(skb); |
5e6e3a92 | 636 | |
e39faa73 | 637 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
638 | |
639 | return 0; | |
640 | } | |
641 | ||
642 | /* | |
643 | * CFG802.11 network device handler for setting MAC address. | |
644 | */ | |
645 | static int | |
646 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
647 | { | |
648 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 649 | struct sockaddr *hw_addr = addr; |
270e58e8 | 650 | int ret; |
5e6e3a92 BZ |
651 | |
652 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
653 | ||
600f5d90 | 654 | /* Send request to firmware */ |
fa0ecbb9 BZ |
655 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
656 | HostCmd_ACT_GEN_SET, 0, NULL, true); | |
600f5d90 AK |
657 | |
658 | if (!ret) | |
659 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
660 | else | |
f57c1edc YAP |
661 | dev_err(priv->adapter->dev, |
662 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 663 | |
5e6e3a92 BZ |
664 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
665 | ||
600f5d90 | 666 | return ret; |
5e6e3a92 BZ |
667 | } |
668 | ||
669 | /* | |
670 | * CFG802.11 network device handler for setting multicast list. | |
671 | */ | |
672 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
673 | { | |
674 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
675 | struct mwifiex_multicast_list mcast_list; |
676 | ||
677 | if (dev->flags & IFF_PROMISC) { | |
678 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
679 | } else if (dev->flags & IFF_ALLMULTI || | |
680 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
681 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
682 | } else { | |
683 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
684 | mcast_list.num_multicast_addr = |
685 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
686 | } |
687 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
688 | } |
689 | ||
690 | /* | |
691 | * CFG802.11 network device handler for transmission timeout. | |
692 | */ | |
693 | static void | |
694 | mwifiex_tx_timeout(struct net_device *dev) | |
695 | { | |
696 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
697 | ||
5e6e3a92 | 698 | priv->num_tx_timeout++; |
8908c7d5 AN |
699 | priv->tx_timeout_cnt++; |
700 | dev_err(priv->adapter->dev, | |
701 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
702 | jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num); | |
703 | mwifiex_set_trans_start(dev); | |
704 | ||
705 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
706 | priv->adapter->if_ops.card_reset) { | |
707 | dev_err(priv->adapter->dev, | |
708 | "tx_timeout_cnt exceeds threshold. Triggering card reset!\n"); | |
709 | priv->adapter->if_ops.card_reset(priv->adapter); | |
710 | } | |
5e6e3a92 BZ |
711 | } |
712 | ||
713 | /* | |
714 | * CFG802.11 network device handler for statistics retrieval. | |
715 | */ | |
716 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
717 | { | |
718 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
719 | ||
720 | return &priv->stats; | |
721 | } | |
722 | ||
47411a06 | 723 | static u16 |
f663dd9a | 724 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 725 | void *accel_priv, select_queue_fallback_t fallback) |
47411a06 | 726 | { |
fa9ffc74 | 727 | skb->priority = cfg80211_classify8021d(skb, NULL); |
47411a06 AP |
728 | return mwifiex_1d_to_wmm_queue[skb->priority]; |
729 | } | |
730 | ||
5e6e3a92 BZ |
731 | /* Network device handlers */ |
732 | static const struct net_device_ops mwifiex_netdev_ops = { | |
733 | .ndo_open = mwifiex_open, | |
734 | .ndo_stop = mwifiex_close, | |
735 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
736 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
737 | .ndo_tx_timeout = mwifiex_tx_timeout, | |
738 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 739 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 740 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
741 | }; |
742 | ||
743 | /* | |
744 | * This function initializes the private structure parameters. | |
745 | * | |
746 | * The following wait queues are initialized - | |
747 | * - IOCTL wait queue | |
748 | * - Command wait queue | |
749 | * - Statistics wait queue | |
750 | * | |
751 | * ...and the following default parameters are set - | |
752 | * - Current key index : Set to 0 | |
753 | * - Rate index : Set to auto | |
754 | * - Media connected : Set to disconnected | |
755 | * - Adhoc link sensed : Set to false | |
756 | * - Nick name : Set to null | |
757 | * - Number of Tx timeout : Set to 0 | |
758 | * - Device address : Set to current address | |
759 | * | |
760 | * In addition, the CFG80211 work queue is also created. | |
761 | */ | |
93a1df48 YAP |
762 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
763 | struct net_device *dev) | |
5e6e3a92 BZ |
764 | { |
765 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 766 | dev->destructor = free_netdev; |
5e6e3a92 | 767 | /* Initialize private structure */ |
5e6e3a92 BZ |
768 | priv->current_key_index = 0; |
769 | priv->media_connected = false; | |
770 | memset(&priv->nick_name, 0, sizeof(priv->nick_name)); | |
ede98bfa AP |
771 | memset(priv->mgmt_ie, 0, |
772 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
773 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
774 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
775 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
776 | priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK; | |
5e6e3a92 | 777 | priv->num_tx_timeout = 0; |
5e6e3a92 BZ |
778 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
779 | } | |
780 | ||
5e6e3a92 BZ |
781 | /* |
782 | * This function check if command is pending. | |
783 | */ | |
784 | int is_command_pending(struct mwifiex_adapter *adapter) | |
785 | { | |
786 | unsigned long flags; | |
787 | int is_cmd_pend_q_empty; | |
788 | ||
789 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
790 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
791 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
792 | ||
793 | return !is_cmd_pend_q_empty; | |
794 | } | |
795 | ||
6e251174 AP |
796 | /* |
797 | * This is the RX work queue function. | |
798 | * | |
799 | * It handles the RX operations. | |
800 | */ | |
801 | static void mwifiex_rx_work_queue(struct work_struct *work) | |
802 | { | |
803 | struct mwifiex_adapter *adapter = | |
804 | container_of(work, struct mwifiex_adapter, rx_work); | |
805 | ||
806 | if (adapter->surprise_removed) | |
807 | return; | |
808 | mwifiex_process_rx(adapter); | |
809 | } | |
810 | ||
5e6e3a92 BZ |
811 | /* |
812 | * This is the main work queue function. | |
813 | * | |
814 | * It handles the main process, which in turn handles the complete | |
815 | * driver operations. | |
816 | */ | |
817 | static void mwifiex_main_work_queue(struct work_struct *work) | |
818 | { | |
819 | struct mwifiex_adapter *adapter = | |
820 | container_of(work, struct mwifiex_adapter, main_work); | |
821 | ||
822 | if (adapter->surprise_removed) | |
823 | return; | |
824 | mwifiex_main_process(adapter); | |
825 | } | |
826 | ||
5e6e3a92 BZ |
827 | /* |
828 | * This function adds the card. | |
829 | * | |
830 | * This function follows the following major steps to set up the device - | |
831 | * - Initialize software. This includes probing the card, registering | |
832 | * the interface operations table, and allocating/initializing the | |
833 | * adapter structure | |
834 | * - Set up the netlink socket | |
835 | * - Create and start the main work queue | |
836 | * - Register the device | |
837 | * - Initialize firmware and hardware | |
838 | * - Add logical interfaces | |
839 | */ | |
840 | int | |
841 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 842 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 843 | { |
2be7859f | 844 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
845 | |
846 | if (down_interruptible(sem)) | |
847 | goto exit_sem_err; | |
848 | ||
93a1df48 | 849 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
850 | pr_err("%s: software init failed\n", __func__); |
851 | goto err_init_sw; | |
852 | } | |
853 | ||
d930faee | 854 | adapter->iface_type = iface_type; |
6b41f941 | 855 | adapter->card_sem = sem; |
d930faee | 856 | |
5e6e3a92 | 857 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
858 | adapter->surprise_removed = false; |
859 | init_waitqueue_head(&adapter->init_wait_q); | |
860 | adapter->is_suspended = false; | |
861 | adapter->hs_activated = false; | |
862 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 | 863 | init_waitqueue_head(&adapter->cmd_wait_q.wait); |
600f5d90 | 864 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 865 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 866 | |
6e251174 AP |
867 | if (num_possible_cpus() > 1) { |
868 | adapter->rx_work_enabled = true; | |
869 | pr_notice("rx work enabled, cpus %d\n", num_possible_cpus()); | |
870 | } | |
871 | ||
448a71cc AK |
872 | adapter->workqueue = |
873 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
874 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
5e6e3a92 BZ |
875 | if (!adapter->workqueue) |
876 | goto err_kmalloc; | |
877 | ||
878 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
6e251174 AP |
879 | |
880 | if (adapter->rx_work_enabled) { | |
881 | adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", | |
882 | WQ_HIGHPRI | | |
883 | WQ_MEM_RECLAIM | | |
884 | WQ_UNBOUND, 1); | |
885 | if (!adapter->rx_workqueue) | |
886 | goto err_kmalloc; | |
887 | ||
888 | INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); | |
889 | } | |
890 | ||
92c2538f AK |
891 | if (adapter->if_ops.iface_work) |
892 | INIT_WORK(&adapter->iface_work, adapter->if_ops.iface_work); | |
5e6e3a92 BZ |
893 | |
894 | /* Register the device. Fill up the private data structure with relevant | |
232fde06 | 895 | information from the card. */ |
5e6e3a92 BZ |
896 | if (adapter->if_ops.register_dev(adapter)) { |
897 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
898 | goto err_registerdev; | |
899 | } | |
900 | ||
5e6e3a92 BZ |
901 | if (mwifiex_init_hw_fw(adapter)) { |
902 | pr_err("%s: firmware init failed\n", __func__); | |
903 | goto err_init_fw; | |
904 | } | |
2be7859f | 905 | |
5e6e3a92 BZ |
906 | return 0; |
907 | ||
5e6e3a92 | 908 | err_init_fw: |
5e6e3a92 | 909 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
910 | if (adapter->if_ops.unregister_dev) |
911 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
912 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || |
913 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
914 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
915 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
916 | |
917 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
918 | wait_event_interruptible(adapter->init_wait_q, |
919 | adapter->init_wait_q_woken); | |
920 | } | |
6b41f941 AK |
921 | err_registerdev: |
922 | adapter->surprise_removed = true; | |
923 | mwifiex_terminate_workqueue(adapter); | |
924 | err_kmalloc: | |
5e6e3a92 BZ |
925 | mwifiex_free_adapter(adapter); |
926 | ||
927 | err_init_sw: | |
928 | up(sem); | |
929 | ||
930 | exit_sem_err: | |
931 | return -1; | |
932 | } | |
933 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
934 | ||
935 | /* | |
936 | * This function removes the card. | |
937 | * | |
938 | * This function follows the following major steps to remove the device - | |
939 | * - Stop data traffic | |
940 | * - Shutdown firmware | |
941 | * - Remove the logical interfaces | |
942 | * - Terminate the work queue | |
943 | * - Unregister the device | |
944 | * - Free the adapter structure | |
945 | */ | |
946 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
947 | { | |
948 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
949 | int i; |
950 | ||
951 | if (down_interruptible(sem)) | |
952 | goto exit_sem_err; | |
953 | ||
954 | if (!adapter) | |
955 | goto exit_remove; | |
956 | ||
232fde06 DD |
957 | /* We can no longer handle interrupts once we start doing the teardown |
958 | * below. */ | |
959 | if (adapter->if_ops.disable_int) | |
960 | adapter->if_ops.disable_int(adapter); | |
961 | ||
5e6e3a92 BZ |
962 | adapter->surprise_removed = true; |
963 | ||
964 | /* Stop data */ | |
965 | for (i = 0; i < adapter->priv_num; i++) { | |
966 | priv = adapter->priv[i]; | |
93a1df48 | 967 | if (priv && priv->netdev) { |
47411a06 | 968 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
969 | if (netif_carrier_ok(priv->netdev)) |
970 | netif_carrier_off(priv->netdev); | |
971 | } | |
972 | } | |
973 | ||
974 | dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n"); | |
975 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
976 | |
977 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
978 | wait_event_interruptible(adapter->init_wait_q, |
979 | adapter->init_wait_q_woken); | |
980 | dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n"); | |
981 | if (atomic_read(&adapter->rx_pending) || | |
982 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 983 | atomic_read(&adapter->cmd_pending)) { |
5e6e3a92 | 984 | dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, " |
600f5d90 | 985 | "cmd_pending=%d\n", |
5e6e3a92 BZ |
986 | atomic_read(&adapter->rx_pending), |
987 | atomic_read(&adapter->tx_pending), | |
600f5d90 | 988 | atomic_read(&adapter->cmd_pending)); |
5e6e3a92 BZ |
989 | } |
990 | ||
93a1df48 YAP |
991 | for (i = 0; i < adapter->priv_num; i++) { |
992 | priv = adapter->priv[i]; | |
993 | ||
994 | if (!priv) | |
995 | continue; | |
996 | ||
997 | rtnl_lock(); | |
2da8cbf8 | 998 | if (priv->wdev && priv->netdev) |
84efbb84 | 999 | mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev); |
93a1df48 YAP |
1000 | rtnl_unlock(); |
1001 | } | |
1002 | ||
c2868ade AK |
1003 | wiphy_unregister(adapter->wiphy); |
1004 | wiphy_free(adapter->wiphy); | |
64b05e2f | 1005 | |
5e6e3a92 BZ |
1006 | mwifiex_terminate_workqueue(adapter); |
1007 | ||
1008 | /* Unregister device */ | |
1009 | dev_dbg(adapter->dev, "info: unregister device\n"); | |
4daffe35 AK |
1010 | if (adapter->if_ops.unregister_dev) |
1011 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
1012 | /* Free adapter structure */ |
1013 | dev_dbg(adapter->dev, "info: free adapter\n"); | |
1014 | mwifiex_free_adapter(adapter); | |
1015 | ||
1016 | exit_remove: | |
1017 | up(sem); | |
1018 | exit_sem_err: | |
1019 | return 0; | |
1020 | } | |
1021 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1022 | ||
1023 | /* | |
1024 | * This function initializes the module. | |
1025 | * | |
1026 | * The debug FS is also initialized if configured. | |
1027 | */ | |
1028 | static int | |
1029 | mwifiex_init_module(void) | |
1030 | { | |
1031 | #ifdef CONFIG_DEBUG_FS | |
1032 | mwifiex_debugfs_init(); | |
1033 | #endif | |
1034 | return 0; | |
1035 | } | |
1036 | ||
1037 | /* | |
1038 | * This function cleans up the module. | |
1039 | * | |
1040 | * The debug FS is removed if available. | |
1041 | */ | |
1042 | static void | |
1043 | mwifiex_cleanup_module(void) | |
1044 | { | |
1045 | #ifdef CONFIG_DEBUG_FS | |
1046 | mwifiex_debugfs_remove(); | |
1047 | #endif | |
1048 | } | |
1049 | ||
1050 | module_init(mwifiex_init_module); | |
1051 | module_exit(mwifiex_cleanup_module); | |
1052 | ||
1053 | MODULE_AUTHOR("Marvell International Ltd."); | |
1054 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1055 | MODULE_VERSION(VERSION); | |
1056 | MODULE_LICENSE("GPL v2"); |