Commit | Line | Data |
---|---|---|
5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: major functions | |
3 | * | |
4 | * Copyright (C) 2011, Marvell International Ltd. | |
5 | * | |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
17 | * this warranty disclaimer. | |
18 | */ | |
19 | ||
20 | #include "main.h" | |
21 | #include "wmm.h" | |
22 | #include "cfg80211.h" | |
23 | #include "11n.h" | |
24 | ||
25 | #define VERSION "1.0" | |
26 | ||
27 | const char driver_version[] = "mwifiex " VERSION " (%s) "; | |
388ec385 AK |
28 | static char *cal_data_cfg; |
29 | module_param(cal_data_cfg, charp, 0); | |
5e6e3a92 | 30 | |
df810083 AK |
31 | static void scan_delay_timer_fn(unsigned long data) |
32 | { | |
33 | struct mwifiex_private *priv = (struct mwifiex_private *)data; | |
34 | struct mwifiex_adapter *adapter = priv->adapter; | |
35 | struct cmd_ctrl_node *cmd_node, *tmp_node; | |
36 | unsigned long flags; | |
37 | ||
38 | if (adapter->surprise_removed) | |
39 | return; | |
40 | ||
f5e8560e AK |
41 | if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT || |
42 | !adapter->scan_processing) { | |
df810083 AK |
43 | /* |
44 | * Abort scan operation by cancelling all pending scan | |
45 | * commands | |
46 | */ | |
47 | spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); | |
48 | list_for_each_entry_safe(cmd_node, tmp_node, | |
49 | &adapter->scan_pending_q, list) { | |
50 | list_del(&cmd_node->list); | |
51 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | |
52 | } | |
53 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); | |
54 | ||
55 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | |
56 | adapter->scan_processing = false; | |
57 | adapter->scan_delay_cnt = 0; | |
58 | adapter->empty_tx_q_cnt = 0; | |
59 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | |
60 | ||
61 | if (priv->scan_request) { | |
62 | dev_dbg(adapter->dev, "info: aborting scan\n"); | |
63 | cfg80211_scan_done(priv->scan_request, 1); | |
64 | priv->scan_request = NULL; | |
65 | } else { | |
66 | priv->scan_aborting = false; | |
67 | dev_dbg(adapter->dev, "info: scan already aborted\n"); | |
68 | } | |
69 | goto done; | |
70 | } | |
71 | ||
72 | if (!atomic_read(&priv->adapter->is_tx_received)) { | |
73 | adapter->empty_tx_q_cnt++; | |
74 | if (adapter->empty_tx_q_cnt == MWIFIEX_MAX_EMPTY_TX_Q_CNT) { | |
75 | /* | |
76 | * No Tx traffic for 200msec. Get scan command from | |
77 | * scan pending queue and put to cmd pending queue to | |
78 | * resume scan operation | |
79 | */ | |
80 | adapter->scan_delay_cnt = 0; | |
81 | adapter->empty_tx_q_cnt = 0; | |
82 | spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); | |
83 | cmd_node = list_first_entry(&adapter->scan_pending_q, | |
84 | struct cmd_ctrl_node, list); | |
85 | list_del(&cmd_node->list); | |
86 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, | |
87 | flags); | |
88 | ||
89 | mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, | |
90 | true); | |
91 | queue_work(adapter->workqueue, &adapter->main_work); | |
92 | goto done; | |
93 | } | |
94 | } else { | |
95 | adapter->empty_tx_q_cnt = 0; | |
96 | } | |
97 | ||
98 | /* Delay scan operation further by 20msec */ | |
99 | mod_timer(&priv->scan_delay_timer, jiffies + | |
100 | msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC)); | |
101 | adapter->scan_delay_cnt++; | |
102 | ||
103 | done: | |
104 | if (atomic_read(&priv->adapter->is_tx_received)) | |
105 | atomic_set(&priv->adapter->is_tx_received, false); | |
106 | ||
107 | return; | |
108 | } | |
109 | ||
5e6e3a92 BZ |
110 | /* |
111 | * This function registers the device and performs all the necessary | |
112 | * initializations. | |
113 | * | |
114 | * The following initialization operations are performed - | |
115 | * - Allocate adapter structure | |
116 | * - Save interface specific operations table in adapter | |
117 | * - Call interface specific initialization routine | |
118 | * - Allocate private structures | |
119 | * - Set default adapter structure parameters | |
120 | * - Initialize locks | |
121 | * | |
122 | * In case of any errors during inittialization, this function also ensures | |
123 | * proper cleanup before exiting. | |
124 | */ | |
125 | static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops, | |
287546df | 126 | void **padapter) |
5e6e3a92 | 127 | { |
2be7859f AK |
128 | struct mwifiex_adapter *adapter; |
129 | int i; | |
5e6e3a92 BZ |
130 | |
131 | adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL); | |
5e6e3a92 | 132 | if (!adapter) |
b53575ec | 133 | return -ENOMEM; |
5e6e3a92 | 134 | |
287546df | 135 | *padapter = adapter; |
5e6e3a92 BZ |
136 | adapter->card = card; |
137 | ||
138 | /* Save interface specific operations in adapter */ | |
139 | memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops)); | |
140 | ||
141 | /* card specific initialization has been deferred until now .. */ | |
4daffe35 AK |
142 | if (adapter->if_ops.init_if) |
143 | if (adapter->if_ops.init_if(adapter)) | |
144 | goto error; | |
5e6e3a92 BZ |
145 | |
146 | adapter->priv_num = 0; | |
5e6e3a92 | 147 | |
64b05e2f AP |
148 | for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { |
149 | /* Allocate memory for private structure */ | |
150 | adapter->priv[i] = | |
151 | kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL); | |
152 | if (!adapter->priv[i]) | |
153 | goto error; | |
93a1df48 | 154 | |
64b05e2f | 155 | adapter->priv[i]->adapter = adapter; |
64b05e2f | 156 | adapter->priv_num++; |
df810083 AK |
157 | |
158 | setup_timer(&adapter->priv[i]->scan_delay_timer, | |
159 | scan_delay_timer_fn, | |
160 | (unsigned long)adapter->priv[i]); | |
64b05e2f | 161 | } |
44b815c6 | 162 | mwifiex_init_lock_list(adapter); |
5e6e3a92 BZ |
163 | |
164 | init_timer(&adapter->cmd_timer); | |
165 | adapter->cmd_timer.function = mwifiex_cmd_timeout_func; | |
166 | adapter->cmd_timer.data = (unsigned long) adapter; | |
167 | ||
5e6e3a92 BZ |
168 | return 0; |
169 | ||
170 | error: | |
171 | dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n"); | |
172 | ||
93a1df48 | 173 | for (i = 0; i < adapter->priv_num; i++) |
5e6e3a92 | 174 | kfree(adapter->priv[i]); |
93a1df48 | 175 | |
5e6e3a92 BZ |
176 | kfree(adapter); |
177 | ||
178 | return -1; | |
179 | } | |
180 | ||
181 | /* | |
182 | * This function unregisters the device and performs all the necessary | |
183 | * cleanups. | |
184 | * | |
185 | * The following cleanup operations are performed - | |
186 | * - Free the timers | |
187 | * - Free beacon buffers | |
188 | * - Free private structures | |
189 | * - Free adapter structure | |
190 | */ | |
191 | static int mwifiex_unregister(struct mwifiex_adapter *adapter) | |
192 | { | |
270e58e8 | 193 | s32 i; |
5e6e3a92 | 194 | |
4cfda67d AK |
195 | if (adapter->if_ops.cleanup_if) |
196 | adapter->if_ops.cleanup_if(adapter); | |
197 | ||
629873f2 | 198 | del_timer_sync(&adapter->cmd_timer); |
5e6e3a92 BZ |
199 | |
200 | /* Free private structures */ | |
201 | for (i = 0; i < adapter->priv_num; i++) { | |
202 | if (adapter->priv[i]) { | |
203 | mwifiex_free_curr_bcn(adapter->priv[i]); | |
003d87cb | 204 | del_timer_sync(&adapter->priv[i]->scan_delay_timer); |
5e6e3a92 BZ |
205 | kfree(adapter->priv[i]); |
206 | } | |
207 | } | |
208 | ||
209 | kfree(adapter); | |
210 | return 0; | |
211 | } | |
212 | ||
213 | /* | |
214 | * The main process. | |
215 | * | |
216 | * This function is the main procedure of the driver and handles various driver | |
217 | * operations. It runs in a loop and provides the core functionalities. | |
218 | * | |
219 | * The main responsibilities of this function are - | |
220 | * - Ensure concurrency control | |
221 | * - Handle pending interrupts and call interrupt handlers | |
222 | * - Wake up the card if required | |
223 | * - Handle command responses and call response handlers | |
224 | * - Handle events and call event handlers | |
225 | * - Execute pending commands | |
226 | * - Transmit pending data packets | |
227 | */ | |
228 | int mwifiex_main_process(struct mwifiex_adapter *adapter) | |
229 | { | |
230 | int ret = 0; | |
231 | unsigned long flags; | |
4daffe35 | 232 | struct sk_buff *skb; |
5e6e3a92 BZ |
233 | |
234 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
235 | ||
236 | /* Check if already processing */ | |
237 | if (adapter->mwifiex_processing) { | |
238 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
239 | goto exit_main_proc; | |
240 | } else { | |
241 | adapter->mwifiex_processing = true; | |
242 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
243 | } | |
244 | process_start: | |
245 | do { | |
246 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) || | |
247 | (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)) | |
248 | break; | |
249 | ||
250 | /* Handle pending interrupt if any */ | |
251 | if (adapter->int_status) { | |
252 | if (adapter->hs_activated) | |
253 | mwifiex_process_hs_config(adapter); | |
4daffe35 AK |
254 | if (adapter->if_ops.process_int_status) |
255 | adapter->if_ops.process_int_status(adapter); | |
5e6e3a92 BZ |
256 | } |
257 | ||
258 | /* Need to wake up the card ? */ | |
259 | if ((adapter->ps_state == PS_STATE_SLEEP) && | |
260 | (adapter->pm_wakeup_card_req && | |
261 | !adapter->pm_wakeup_fw_try) && | |
f57c1edc YAP |
262 | (is_command_pending(adapter) || |
263 | !mwifiex_wmm_lists_empty(adapter))) { | |
5e6e3a92 BZ |
264 | adapter->pm_wakeup_fw_try = true; |
265 | adapter->if_ops.wakeup(adapter); | |
266 | continue; | |
267 | } | |
4daffe35 | 268 | |
5e6e3a92 BZ |
269 | if (IS_CARD_RX_RCVD(adapter)) { |
270 | adapter->pm_wakeup_fw_try = false; | |
271 | if (adapter->ps_state == PS_STATE_SLEEP) | |
272 | adapter->ps_state = PS_STATE_AWAKE; | |
273 | } else { | |
274 | /* We have tried to wakeup the card already */ | |
275 | if (adapter->pm_wakeup_fw_try) | |
276 | break; | |
277 | if (adapter->ps_state != PS_STATE_AWAKE || | |
278 | adapter->tx_lock_flag) | |
279 | break; | |
280 | ||
f931c770 AK |
281 | if ((adapter->scan_processing && |
282 | !adapter->scan_delay_cnt) || adapter->data_sent || | |
f57c1edc YAP |
283 | mwifiex_wmm_lists_empty(adapter)) { |
284 | if (adapter->cmd_sent || adapter->curr_cmd || | |
285 | (!is_command_pending(adapter))) | |
5e6e3a92 BZ |
286 | break; |
287 | } | |
288 | } | |
289 | ||
4daffe35 AK |
290 | /* Check Rx data for USB */ |
291 | if (adapter->iface_type == MWIFIEX_USB) | |
292 | while ((skb = skb_dequeue(&adapter->usb_rx_data_q))) | |
293 | mwifiex_handle_rx_packet(adapter, skb); | |
294 | ||
20474129 AK |
295 | /* Check for event */ |
296 | if (adapter->event_received) { | |
297 | adapter->event_received = false; | |
298 | mwifiex_process_event(adapter); | |
299 | } | |
300 | ||
5e6e3a92 BZ |
301 | /* Check for Cmd Resp */ |
302 | if (adapter->cmd_resp_received) { | |
303 | adapter->cmd_resp_received = false; | |
304 | mwifiex_process_cmdresp(adapter); | |
305 | ||
306 | /* call mwifiex back when init_fw is done */ | |
307 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { | |
308 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
309 | mwifiex_init_fw_complete(adapter); | |
310 | } | |
311 | } | |
312 | ||
5e6e3a92 BZ |
313 | /* Check if we need to confirm Sleep Request |
314 | received previously */ | |
315 | if (adapter->ps_state == PS_STATE_PRE_SLEEP) { | |
316 | if (!adapter->cmd_sent && !adapter->curr_cmd) | |
317 | mwifiex_check_ps_cond(adapter); | |
318 | } | |
319 | ||
320 | /* * The ps_state may have been changed during processing of | |
321 | * Sleep Request event. | |
322 | */ | |
f57c1edc YAP |
323 | if ((adapter->ps_state == PS_STATE_SLEEP) || |
324 | (adapter->ps_state == PS_STATE_PRE_SLEEP) || | |
325 | (adapter->ps_state == PS_STATE_SLEEP_CFM) || | |
326 | adapter->tx_lock_flag) | |
5e6e3a92 BZ |
327 | continue; |
328 | ||
329 | if (!adapter->cmd_sent && !adapter->curr_cmd) { | |
330 | if (mwifiex_exec_next_cmd(adapter) == -1) { | |
331 | ret = -1; | |
332 | break; | |
333 | } | |
334 | } | |
335 | ||
3249ba73 AK |
336 | if ((!adapter->scan_processing || adapter->scan_delay_cnt) && |
337 | !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
338 | mwifiex_wmm_process_tx(adapter); |
339 | if (adapter->hs_activated) { | |
340 | adapter->is_hs_configured = false; | |
341 | mwifiex_hs_activated_event | |
342 | (mwifiex_get_priv | |
343 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
344 | false); | |
345 | } | |
346 | } | |
347 | ||
348 | if (adapter->delay_null_pkt && !adapter->cmd_sent && | |
f57c1edc YAP |
349 | !adapter->curr_cmd && !is_command_pending(adapter) && |
350 | mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
351 | if (!mwifiex_send_null_packet |
352 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
353 | MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | | |
354 | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { | |
355 | adapter->delay_null_pkt = false; | |
356 | adapter->ps_state = PS_STATE_SLEEP; | |
357 | } | |
358 | break; | |
359 | } | |
360 | } while (true); | |
361 | ||
453b0c3f AK |
362 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
363 | if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter)) { | |
364 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
5e6e3a92 | 365 | goto process_start; |
453b0c3f | 366 | } |
5e6e3a92 | 367 | |
5e6e3a92 BZ |
368 | adapter->mwifiex_processing = false; |
369 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
370 | ||
371 | exit_main_proc: | |
372 | if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) | |
373 | mwifiex_shutdown_drv(adapter); | |
374 | return ret; | |
375 | } | |
601216e1 | 376 | EXPORT_SYMBOL_GPL(mwifiex_main_process); |
5e6e3a92 | 377 | |
5e6e3a92 BZ |
378 | /* |
379 | * This function frees the adapter structure. | |
380 | * | |
381 | * Additionally, this closes the netlink socket, frees the timers | |
382 | * and private structures. | |
383 | */ | |
384 | static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
385 | { | |
386 | if (!adapter) { | |
387 | pr_err("%s: adapter is NULL\n", __func__); | |
388 | return; | |
389 | } | |
390 | ||
391 | mwifiex_unregister(adapter); | |
392 | pr_debug("info: %s: free adapter\n", __func__); | |
393 | } | |
394 | ||
6b41f941 AK |
395 | /* |
396 | * This function cancels all works in the queue and destroys | |
397 | * the main workqueue. | |
398 | */ | |
399 | static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) | |
400 | { | |
401 | flush_workqueue(adapter->workqueue); | |
402 | destroy_workqueue(adapter->workqueue); | |
403 | adapter->workqueue = NULL; | |
404 | } | |
405 | ||
5e6e3a92 | 406 | /* |
59a4cc25 | 407 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
408 | * |
409 | * The main initialization steps followed are - | |
410 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
411 | * - Issue the init commands to firmware |
412 | */ | |
59a4cc25 | 413 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 414 | { |
bec568ff | 415 | int ret; |
59a4cc25 AK |
416 | char fmt[64]; |
417 | struct mwifiex_private *priv; | |
418 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 419 | struct mwifiex_fw_image fw; |
c3afd99f AK |
420 | struct semaphore *sem = adapter->card_sem; |
421 | bool init_failed = false; | |
68b76e99 | 422 | struct wireless_dev *wdev; |
5e6e3a92 | 423 | |
59a4cc25 AK |
424 | if (!firmware) { |
425 | dev_err(adapter->dev, | |
426 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 427 | goto err_dnld_fw; |
5e6e3a92 | 428 | } |
59a4cc25 AK |
429 | |
430 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
431 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
432 | fw.fw_buf = (u8 *) adapter->firmware->data; |
433 | fw.fw_len = adapter->firmware->size; | |
434 | ||
4daffe35 AK |
435 | if (adapter->if_ops.dnld_fw) |
436 | ret = adapter->if_ops.dnld_fw(adapter, &fw); | |
437 | else | |
438 | ret = mwifiex_dnld_fw(adapter, &fw); | |
5e6e3a92 | 439 | if (ret == -1) |
6b41f941 | 440 | goto err_dnld_fw; |
5e6e3a92 BZ |
441 | |
442 | dev_notice(adapter->dev, "WLAN FW is active\n"); | |
443 | ||
388ec385 AK |
444 | if (cal_data_cfg) { |
445 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
446 | adapter->dev)) < 0) | |
447 | dev_err(adapter->dev, | |
448 | "Cal data request_firmware() failed\n"); | |
449 | } | |
450 | ||
232fde06 | 451 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
452 | if (adapter->if_ops.enable_int) { |
453 | if (adapter->if_ops.enable_int(adapter)) | |
454 | goto err_dnld_fw; | |
455 | } | |
232fde06 | 456 | |
5e6e3a92 BZ |
457 | adapter->init_wait_q_woken = false; |
458 | ret = mwifiex_init_fw(adapter); | |
459 | if (ret == -1) { | |
6b41f941 | 460 | goto err_init_fw; |
5e6e3a92 BZ |
461 | } else if (!ret) { |
462 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
463 | goto done; | |
464 | } | |
465 | /* Wait for mwifiex_init to complete */ | |
466 | wait_event_interruptible(adapter->init_wait_q, | |
467 | adapter->init_wait_q_woken); | |
59a4cc25 | 468 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) |
6b41f941 | 469 | goto err_init_fw; |
59a4cc25 | 470 | |
d6bffe8b AP |
471 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
472 | if (mwifiex_register_cfg80211(adapter)) { | |
59a4cc25 | 473 | dev_err(adapter->dev, "cannot register with cfg80211\n"); |
d1af2943 | 474 | goto err_init_fw; |
59a4cc25 AK |
475 | } |
476 | ||
477 | rtnl_lock(); | |
478 | /* Create station interface by default */ | |
68b76e99 AK |
479 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", |
480 | NL80211_IFTYPE_STATION, NULL, NULL); | |
481 | if (IS_ERR(wdev)) { | |
59a4cc25 | 482 | dev_err(adapter->dev, "cannot create default STA interface\n"); |
bec568ff | 483 | rtnl_unlock(); |
59a4cc25 | 484 | goto err_add_intf; |
5e6e3a92 | 485 | } |
59a4cc25 AK |
486 | rtnl_unlock(); |
487 | ||
488 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
489 | dev_notice(adapter->dev, "driver_version = %s\n", fmt); | |
490 | goto done; | |
5e6e3a92 | 491 | |
59a4cc25 | 492 | err_add_intf: |
6b41f941 AK |
493 | wiphy_unregister(adapter->wiphy); |
494 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 495 | err_init_fw: |
232fde06 DD |
496 | if (adapter->if_ops.disable_int) |
497 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 498 | err_dnld_fw: |
59a4cc25 | 499 | pr_debug("info: %s: unregister device\n", __func__); |
6b41f941 AK |
500 | if (adapter->if_ops.unregister_dev) |
501 | adapter->if_ops.unregister_dev(adapter); | |
502 | ||
503 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || | |
504 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
505 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
506 | adapter->init_wait_q_woken = false; | |
507 | ||
508 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
509 | wait_event_interruptible(adapter->init_wait_q, | |
510 | adapter->init_wait_q_woken); | |
511 | } | |
512 | adapter->surprise_removed = true; | |
513 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 514 | init_failed = true; |
5e6e3a92 | 515 | done: |
388ec385 AK |
516 | if (adapter->cal_data) { |
517 | release_firmware(adapter->cal_data); | |
518 | adapter->cal_data = NULL; | |
519 | } | |
c3afd99f AK |
520 | if (adapter->firmware) { |
521 | release_firmware(adapter->firmware); | |
522 | adapter->firmware = NULL; | |
523 | } | |
c3afd99f AK |
524 | if (init_failed) |
525 | mwifiex_free_adapter(adapter); | |
526 | up(sem); | |
59a4cc25 AK |
527 | return; |
528 | } | |
529 | ||
530 | /* | |
531 | * This function initializes the hardware and gets firmware. | |
532 | */ | |
533 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter) | |
534 | { | |
535 | int ret; | |
536 | ||
59a4cc25 AK |
537 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, |
538 | adapter->dev, GFP_KERNEL, adapter, | |
539 | mwifiex_fw_dpc); | |
540 | if (ret < 0) | |
541 | dev_err(adapter->dev, | |
542 | "request_firmware_nowait() returned error %d\n", ret); | |
5e6e3a92 BZ |
543 | return ret; |
544 | } | |
545 | ||
5e6e3a92 BZ |
546 | /* |
547 | * CFG802.11 network device handler for open. | |
548 | * | |
549 | * Starts the data queue. | |
550 | */ | |
551 | static int | |
552 | mwifiex_open(struct net_device *dev) | |
553 | { | |
bbea3bc4 | 554 | netif_tx_start_all_queues(dev); |
5e6e3a92 BZ |
555 | return 0; |
556 | } | |
557 | ||
558 | /* | |
559 | * CFG802.11 network device handler for close. | |
560 | */ | |
561 | static int | |
562 | mwifiex_close(struct net_device *dev) | |
563 | { | |
f162cac8 AK |
564 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
565 | ||
566 | if (priv->scan_request) { | |
567 | dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n"); | |
568 | cfg80211_scan_done(priv->scan_request, 1); | |
569 | priv->scan_request = NULL; | |
75ab753d | 570 | priv->scan_aborting = true; |
f162cac8 AK |
571 | } |
572 | ||
5e6e3a92 BZ |
573 | return 0; |
574 | } | |
575 | ||
e39faa73 SP |
576 | /* |
577 | * Add buffer into wmm tx queue and queue work to transmit it. | |
578 | */ | |
579 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
580 | { | |
47411a06 AP |
581 | struct netdev_queue *txq; |
582 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
583 | ||
584 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
585 | txq = netdev_get_tx_queue(priv->netdev, index); | |
586 | if (!netif_tx_queue_stopped(txq)) { | |
587 | netif_tx_stop_queue(txq); | |
588 | dev_dbg(priv->adapter->dev, "stop queue: %d\n", index); | |
589 | } | |
590 | } | |
591 | ||
e39faa73 | 592 | atomic_inc(&priv->adapter->tx_pending); |
47411a06 | 593 | mwifiex_wmm_add_buf_txqueue(priv, skb); |
e39faa73 SP |
594 | |
595 | if (priv->adapter->scan_delay_cnt) | |
596 | atomic_set(&priv->adapter->is_tx_received, true); | |
597 | ||
e39faa73 SP |
598 | queue_work(priv->adapter->workqueue, &priv->adapter->main_work); |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
5e6e3a92 BZ |
603 | /* |
604 | * CFG802.11 network device handler for data transmission. | |
605 | */ | |
606 | static int | |
607 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
608 | { | |
609 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 610 | struct sk_buff *new_skb; |
5e6e3a92 BZ |
611 | struct mwifiex_txinfo *tx_info; |
612 | ||
9da9a3b2 | 613 | dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n", |
f57c1edc | 614 | jiffies, priv->bss_type, priv->bss_num); |
5e6e3a92 BZ |
615 | |
616 | if (priv->adapter->surprise_removed) { | |
b53575ec | 617 | kfree_skb(skb); |
5e6e3a92 BZ |
618 | priv->stats.tx_dropped++; |
619 | return 0; | |
620 | } | |
621 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
622 | dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 623 | kfree_skb(skb); |
5e6e3a92 BZ |
624 | priv->stats.tx_dropped++; |
625 | return 0; | |
626 | } | |
627 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
628 | dev_dbg(priv->adapter->dev, | |
629 | "data: Tx: insufficient skb headroom %d\n", | |
f57c1edc | 630 | skb_headroom(skb)); |
5e6e3a92 BZ |
631 | /* Insufficient skb headroom - allocate a new skb */ |
632 | new_skb = | |
633 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
634 | if (unlikely(!new_skb)) { | |
635 | dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n"); | |
b53575ec | 636 | kfree_skb(skb); |
5e6e3a92 BZ |
637 | priv->stats.tx_dropped++; |
638 | return 0; | |
639 | } | |
640 | kfree_skb(skb); | |
641 | skb = new_skb; | |
642 | dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n", | |
f57c1edc | 643 | skb_headroom(skb)); |
5e6e3a92 BZ |
644 | } |
645 | ||
646 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
9da9a3b2 YAP |
647 | tx_info->bss_num = priv->bss_num; |
648 | tx_info->bss_type = priv->bss_type; | |
a1ed4849 | 649 | tx_info->pkt_len = skb->len; |
47411a06 AP |
650 | |
651 | /* Record the current time the packet was queued; used to | |
652 | * determine the amount of time the packet was queued in | |
653 | * the driver before it was sent to the firmware. | |
654 | * The delay is then sent along with the packet to the | |
655 | * firmware for aggregate delay calculation for stats and | |
656 | * MSDU lifetime expiry. | |
657 | */ | |
6451acdc | 658 | __net_timestamp(skb); |
5e6e3a92 | 659 | |
e39faa73 | 660 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
661 | |
662 | return 0; | |
663 | } | |
664 | ||
665 | /* | |
666 | * CFG802.11 network device handler for setting MAC address. | |
667 | */ | |
668 | static int | |
669 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
670 | { | |
671 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 672 | struct sockaddr *hw_addr = addr; |
270e58e8 | 673 | int ret; |
5e6e3a92 BZ |
674 | |
675 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
676 | ||
600f5d90 | 677 | /* Send request to firmware */ |
fa0ecbb9 BZ |
678 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
679 | HostCmd_ACT_GEN_SET, 0, NULL, true); | |
600f5d90 AK |
680 | |
681 | if (!ret) | |
682 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
683 | else | |
f57c1edc YAP |
684 | dev_err(priv->adapter->dev, |
685 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 686 | |
5e6e3a92 BZ |
687 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
688 | ||
600f5d90 | 689 | return ret; |
5e6e3a92 BZ |
690 | } |
691 | ||
692 | /* | |
693 | * CFG802.11 network device handler for setting multicast list. | |
694 | */ | |
695 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
696 | { | |
697 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
698 | struct mwifiex_multicast_list mcast_list; |
699 | ||
700 | if (dev->flags & IFF_PROMISC) { | |
701 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
702 | } else if (dev->flags & IFF_ALLMULTI || | |
703 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
704 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
705 | } else { | |
706 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
707 | mcast_list.num_multicast_addr = |
708 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
709 | } |
710 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
711 | } |
712 | ||
713 | /* | |
714 | * CFG802.11 network device handler for transmission timeout. | |
715 | */ | |
716 | static void | |
717 | mwifiex_tx_timeout(struct net_device *dev) | |
718 | { | |
719 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
720 | ||
5e6e3a92 | 721 | priv->num_tx_timeout++; |
8908c7d5 AN |
722 | priv->tx_timeout_cnt++; |
723 | dev_err(priv->adapter->dev, | |
724 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
725 | jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num); | |
726 | mwifiex_set_trans_start(dev); | |
727 | ||
728 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
729 | priv->adapter->if_ops.card_reset) { | |
730 | dev_err(priv->adapter->dev, | |
731 | "tx_timeout_cnt exceeds threshold. Triggering card reset!\n"); | |
732 | priv->adapter->if_ops.card_reset(priv->adapter); | |
733 | } | |
5e6e3a92 BZ |
734 | } |
735 | ||
736 | /* | |
737 | * CFG802.11 network device handler for statistics retrieval. | |
738 | */ | |
739 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
740 | { | |
741 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
742 | ||
743 | return &priv->stats; | |
744 | } | |
745 | ||
47411a06 | 746 | static u16 |
f663dd9a | 747 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 748 | void *accel_priv, select_queue_fallback_t fallback) |
47411a06 | 749 | { |
fa9ffc74 | 750 | skb->priority = cfg80211_classify8021d(skb, NULL); |
47411a06 AP |
751 | return mwifiex_1d_to_wmm_queue[skb->priority]; |
752 | } | |
753 | ||
5e6e3a92 BZ |
754 | /* Network device handlers */ |
755 | static const struct net_device_ops mwifiex_netdev_ops = { | |
756 | .ndo_open = mwifiex_open, | |
757 | .ndo_stop = mwifiex_close, | |
758 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
759 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
760 | .ndo_tx_timeout = mwifiex_tx_timeout, | |
761 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 762 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 763 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
764 | }; |
765 | ||
766 | /* | |
767 | * This function initializes the private structure parameters. | |
768 | * | |
769 | * The following wait queues are initialized - | |
770 | * - IOCTL wait queue | |
771 | * - Command wait queue | |
772 | * - Statistics wait queue | |
773 | * | |
774 | * ...and the following default parameters are set - | |
775 | * - Current key index : Set to 0 | |
776 | * - Rate index : Set to auto | |
777 | * - Media connected : Set to disconnected | |
778 | * - Adhoc link sensed : Set to false | |
779 | * - Nick name : Set to null | |
780 | * - Number of Tx timeout : Set to 0 | |
781 | * - Device address : Set to current address | |
782 | * | |
783 | * In addition, the CFG80211 work queue is also created. | |
784 | */ | |
93a1df48 YAP |
785 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
786 | struct net_device *dev) | |
5e6e3a92 BZ |
787 | { |
788 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 789 | dev->destructor = free_netdev; |
5e6e3a92 | 790 | /* Initialize private structure */ |
5e6e3a92 BZ |
791 | priv->current_key_index = 0; |
792 | priv->media_connected = false; | |
793 | memset(&priv->nick_name, 0, sizeof(priv->nick_name)); | |
ede98bfa AP |
794 | memset(priv->mgmt_ie, 0, |
795 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
796 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
797 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
798 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
799 | priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK; | |
5e6e3a92 | 800 | priv->num_tx_timeout = 0; |
5e6e3a92 BZ |
801 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
802 | } | |
803 | ||
5e6e3a92 BZ |
804 | /* |
805 | * This function check if command is pending. | |
806 | */ | |
807 | int is_command_pending(struct mwifiex_adapter *adapter) | |
808 | { | |
809 | unsigned long flags; | |
810 | int is_cmd_pend_q_empty; | |
811 | ||
812 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
813 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
814 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
815 | ||
816 | return !is_cmd_pend_q_empty; | |
817 | } | |
818 | ||
5e6e3a92 BZ |
819 | /* |
820 | * This is the main work queue function. | |
821 | * | |
822 | * It handles the main process, which in turn handles the complete | |
823 | * driver operations. | |
824 | */ | |
825 | static void mwifiex_main_work_queue(struct work_struct *work) | |
826 | { | |
827 | struct mwifiex_adapter *adapter = | |
828 | container_of(work, struct mwifiex_adapter, main_work); | |
829 | ||
830 | if (adapter->surprise_removed) | |
831 | return; | |
832 | mwifiex_main_process(adapter); | |
833 | } | |
834 | ||
5e6e3a92 BZ |
835 | /* |
836 | * This function adds the card. | |
837 | * | |
838 | * This function follows the following major steps to set up the device - | |
839 | * - Initialize software. This includes probing the card, registering | |
840 | * the interface operations table, and allocating/initializing the | |
841 | * adapter structure | |
842 | * - Set up the netlink socket | |
843 | * - Create and start the main work queue | |
844 | * - Register the device | |
845 | * - Initialize firmware and hardware | |
846 | * - Add logical interfaces | |
847 | */ | |
848 | int | |
849 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 850 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 851 | { |
2be7859f | 852 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
853 | |
854 | if (down_interruptible(sem)) | |
855 | goto exit_sem_err; | |
856 | ||
93a1df48 | 857 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
858 | pr_err("%s: software init failed\n", __func__); |
859 | goto err_init_sw; | |
860 | } | |
861 | ||
d930faee | 862 | adapter->iface_type = iface_type; |
6b41f941 | 863 | adapter->card_sem = sem; |
d930faee | 864 | |
5e6e3a92 | 865 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
866 | adapter->surprise_removed = false; |
867 | init_waitqueue_head(&adapter->init_wait_q); | |
868 | adapter->is_suspended = false; | |
869 | adapter->hs_activated = false; | |
870 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 | 871 | init_waitqueue_head(&adapter->cmd_wait_q.wait); |
600f5d90 | 872 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 873 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 874 | |
448a71cc AK |
875 | adapter->workqueue = |
876 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
877 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
5e6e3a92 BZ |
878 | if (!adapter->workqueue) |
879 | goto err_kmalloc; | |
880 | ||
881 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
92c2538f AK |
882 | if (adapter->if_ops.iface_work) |
883 | INIT_WORK(&adapter->iface_work, adapter->if_ops.iface_work); | |
5e6e3a92 BZ |
884 | |
885 | /* Register the device. Fill up the private data structure with relevant | |
232fde06 | 886 | information from the card. */ |
5e6e3a92 BZ |
887 | if (adapter->if_ops.register_dev(adapter)) { |
888 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
889 | goto err_registerdev; | |
890 | } | |
891 | ||
5e6e3a92 BZ |
892 | if (mwifiex_init_hw_fw(adapter)) { |
893 | pr_err("%s: firmware init failed\n", __func__); | |
894 | goto err_init_fw; | |
895 | } | |
2be7859f | 896 | |
5e6e3a92 BZ |
897 | return 0; |
898 | ||
5e6e3a92 | 899 | err_init_fw: |
5e6e3a92 | 900 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
901 | if (adapter->if_ops.unregister_dev) |
902 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
903 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || |
904 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
905 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
906 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
907 | |
908 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
909 | wait_event_interruptible(adapter->init_wait_q, |
910 | adapter->init_wait_q_woken); | |
911 | } | |
6b41f941 AK |
912 | err_registerdev: |
913 | adapter->surprise_removed = true; | |
914 | mwifiex_terminate_workqueue(adapter); | |
915 | err_kmalloc: | |
5e6e3a92 BZ |
916 | mwifiex_free_adapter(adapter); |
917 | ||
918 | err_init_sw: | |
919 | up(sem); | |
920 | ||
921 | exit_sem_err: | |
922 | return -1; | |
923 | } | |
924 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
925 | ||
926 | /* | |
927 | * This function removes the card. | |
928 | * | |
929 | * This function follows the following major steps to remove the device - | |
930 | * - Stop data traffic | |
931 | * - Shutdown firmware | |
932 | * - Remove the logical interfaces | |
933 | * - Terminate the work queue | |
934 | * - Unregister the device | |
935 | * - Free the adapter structure | |
936 | */ | |
937 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
938 | { | |
939 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
940 | int i; |
941 | ||
942 | if (down_interruptible(sem)) | |
943 | goto exit_sem_err; | |
944 | ||
945 | if (!adapter) | |
946 | goto exit_remove; | |
947 | ||
232fde06 DD |
948 | /* We can no longer handle interrupts once we start doing the teardown |
949 | * below. */ | |
950 | if (adapter->if_ops.disable_int) | |
951 | adapter->if_ops.disable_int(adapter); | |
952 | ||
5e6e3a92 BZ |
953 | adapter->surprise_removed = true; |
954 | ||
955 | /* Stop data */ | |
956 | for (i = 0; i < adapter->priv_num; i++) { | |
957 | priv = adapter->priv[i]; | |
93a1df48 | 958 | if (priv && priv->netdev) { |
47411a06 | 959 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
960 | if (netif_carrier_ok(priv->netdev)) |
961 | netif_carrier_off(priv->netdev); | |
962 | } | |
963 | } | |
964 | ||
965 | dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n"); | |
966 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
967 | |
968 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
969 | wait_event_interruptible(adapter->init_wait_q, |
970 | adapter->init_wait_q_woken); | |
971 | dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n"); | |
972 | if (atomic_read(&adapter->rx_pending) || | |
973 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 974 | atomic_read(&adapter->cmd_pending)) { |
5e6e3a92 | 975 | dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, " |
600f5d90 | 976 | "cmd_pending=%d\n", |
5e6e3a92 BZ |
977 | atomic_read(&adapter->rx_pending), |
978 | atomic_read(&adapter->tx_pending), | |
600f5d90 | 979 | atomic_read(&adapter->cmd_pending)); |
5e6e3a92 BZ |
980 | } |
981 | ||
93a1df48 YAP |
982 | for (i = 0; i < adapter->priv_num; i++) { |
983 | priv = adapter->priv[i]; | |
984 | ||
985 | if (!priv) | |
986 | continue; | |
987 | ||
988 | rtnl_lock(); | |
2da8cbf8 | 989 | if (priv->wdev && priv->netdev) |
84efbb84 | 990 | mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev); |
93a1df48 YAP |
991 | rtnl_unlock(); |
992 | } | |
993 | ||
c2868ade AK |
994 | wiphy_unregister(adapter->wiphy); |
995 | wiphy_free(adapter->wiphy); | |
64b05e2f | 996 | |
5e6e3a92 BZ |
997 | mwifiex_terminate_workqueue(adapter); |
998 | ||
999 | /* Unregister device */ | |
1000 | dev_dbg(adapter->dev, "info: unregister device\n"); | |
4daffe35 AK |
1001 | if (adapter->if_ops.unregister_dev) |
1002 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
1003 | /* Free adapter structure */ |
1004 | dev_dbg(adapter->dev, "info: free adapter\n"); | |
1005 | mwifiex_free_adapter(adapter); | |
1006 | ||
1007 | exit_remove: | |
1008 | up(sem); | |
1009 | exit_sem_err: | |
1010 | return 0; | |
1011 | } | |
1012 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1013 | ||
1014 | /* | |
1015 | * This function initializes the module. | |
1016 | * | |
1017 | * The debug FS is also initialized if configured. | |
1018 | */ | |
1019 | static int | |
1020 | mwifiex_init_module(void) | |
1021 | { | |
1022 | #ifdef CONFIG_DEBUG_FS | |
1023 | mwifiex_debugfs_init(); | |
1024 | #endif | |
1025 | return 0; | |
1026 | } | |
1027 | ||
1028 | /* | |
1029 | * This function cleans up the module. | |
1030 | * | |
1031 | * The debug FS is removed if available. | |
1032 | */ | |
1033 | static void | |
1034 | mwifiex_cleanup_module(void) | |
1035 | { | |
1036 | #ifdef CONFIG_DEBUG_FS | |
1037 | mwifiex_debugfs_remove(); | |
1038 | #endif | |
1039 | } | |
1040 | ||
1041 | module_init(mwifiex_init_module); | |
1042 | module_exit(mwifiex_cleanup_module); | |
1043 | ||
1044 | MODULE_AUTHOR("Marvell International Ltd."); | |
1045 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1046 | MODULE_VERSION(VERSION); | |
1047 | MODULE_LICENSE("GPL v2"); |