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 | |
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; | |
d5343f06 | 36 | spinlock_t *scan_q_lock = &adapter->scan_pending_q_lock; |
df810083 AK |
37 | unsigned long flags; |
38 | ||
39 | if (adapter->surprise_removed) | |
40 | return; | |
41 | ||
f5e8560e AK |
42 | if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT || |
43 | !adapter->scan_processing) { | |
df810083 AK |
44 | /* |
45 | * Abort scan operation by cancelling all pending scan | |
46 | * commands | |
47 | */ | |
d5343f06 | 48 | spin_lock_irqsave(scan_q_lock, flags); |
df810083 AK |
49 | list_for_each_entry_safe(cmd_node, tmp_node, |
50 | &adapter->scan_pending_q, list) { | |
51 | list_del(&cmd_node->list); | |
52 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | |
53 | } | |
d5343f06 | 54 | spin_unlock_irqrestore(scan_q_lock, flags); |
df810083 AK |
55 | |
56 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | |
57 | adapter->scan_processing = false; | |
58 | adapter->scan_delay_cnt = 0; | |
59 | adapter->empty_tx_q_cnt = 0; | |
60 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | |
61 | ||
62 | if (priv->scan_request) { | |
63 | dev_dbg(adapter->dev, "info: aborting scan\n"); | |
64 | cfg80211_scan_done(priv->scan_request, 1); | |
65 | priv->scan_request = NULL; | |
66 | } else { | |
67 | priv->scan_aborting = false; | |
68 | dev_dbg(adapter->dev, "info: scan already aborted\n"); | |
69 | } | |
70 | goto done; | |
71 | } | |
72 | ||
73 | if (!atomic_read(&priv->adapter->is_tx_received)) { | |
74 | adapter->empty_tx_q_cnt++; | |
75 | if (adapter->empty_tx_q_cnt == MWIFIEX_MAX_EMPTY_TX_Q_CNT) { | |
76 | /* | |
77 | * No Tx traffic for 200msec. Get scan command from | |
78 | * scan pending queue and put to cmd pending queue to | |
79 | * resume scan operation | |
80 | */ | |
81 | adapter->scan_delay_cnt = 0; | |
82 | adapter->empty_tx_q_cnt = 0; | |
d5343f06 AK |
83 | spin_lock_irqsave(scan_q_lock, flags); |
84 | ||
85 | if (list_empty(&adapter->scan_pending_q)) { | |
86 | spin_unlock_irqrestore(scan_q_lock, flags); | |
87 | goto done; | |
88 | } | |
89 | ||
df810083 AK |
90 | cmd_node = list_first_entry(&adapter->scan_pending_q, |
91 | struct cmd_ctrl_node, list); | |
92 | list_del(&cmd_node->list); | |
d5343f06 | 93 | spin_unlock_irqrestore(scan_q_lock, flags); |
df810083 AK |
94 | |
95 | mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, | |
96 | true); | |
97 | queue_work(adapter->workqueue, &adapter->main_work); | |
98 | goto done; | |
99 | } | |
100 | } else { | |
101 | adapter->empty_tx_q_cnt = 0; | |
102 | } | |
103 | ||
104 | /* Delay scan operation further by 20msec */ | |
105 | mod_timer(&priv->scan_delay_timer, jiffies + | |
106 | msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC)); | |
107 | adapter->scan_delay_cnt++; | |
108 | ||
109 | done: | |
110 | if (atomic_read(&priv->adapter->is_tx_received)) | |
111 | atomic_set(&priv->adapter->is_tx_received, false); | |
112 | ||
113 | return; | |
114 | } | |
115 | ||
5e6e3a92 BZ |
116 | /* |
117 | * This function registers the device and performs all the necessary | |
118 | * initializations. | |
119 | * | |
120 | * The following initialization operations are performed - | |
121 | * - Allocate adapter structure | |
122 | * - Save interface specific operations table in adapter | |
123 | * - Call interface specific initialization routine | |
124 | * - Allocate private structures | |
125 | * - Set default adapter structure parameters | |
126 | * - Initialize locks | |
127 | * | |
128 | * In case of any errors during inittialization, this function also ensures | |
129 | * proper cleanup before exiting. | |
130 | */ | |
131 | static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops, | |
287546df | 132 | void **padapter) |
5e6e3a92 | 133 | { |
2be7859f AK |
134 | struct mwifiex_adapter *adapter; |
135 | int i; | |
5e6e3a92 BZ |
136 | |
137 | adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL); | |
5e6e3a92 | 138 | if (!adapter) |
b53575ec | 139 | return -ENOMEM; |
5e6e3a92 | 140 | |
287546df | 141 | *padapter = adapter; |
5e6e3a92 BZ |
142 | adapter->card = card; |
143 | ||
144 | /* Save interface specific operations in adapter */ | |
145 | memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops)); | |
146 | ||
147 | /* card specific initialization has been deferred until now .. */ | |
4daffe35 AK |
148 | if (adapter->if_ops.init_if) |
149 | if (adapter->if_ops.init_if(adapter)) | |
150 | goto error; | |
5e6e3a92 BZ |
151 | |
152 | adapter->priv_num = 0; | |
5e6e3a92 | 153 | |
64b05e2f AP |
154 | for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { |
155 | /* Allocate memory for private structure */ | |
156 | adapter->priv[i] = | |
157 | kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL); | |
158 | if (!adapter->priv[i]) | |
159 | goto error; | |
93a1df48 | 160 | |
64b05e2f | 161 | adapter->priv[i]->adapter = adapter; |
64b05e2f | 162 | adapter->priv_num++; |
df810083 AK |
163 | |
164 | setup_timer(&adapter->priv[i]->scan_delay_timer, | |
165 | scan_delay_timer_fn, | |
166 | (unsigned long)adapter->priv[i]); | |
64b05e2f | 167 | } |
44b815c6 | 168 | mwifiex_init_lock_list(adapter); |
5e6e3a92 BZ |
169 | |
170 | init_timer(&adapter->cmd_timer); | |
171 | adapter->cmd_timer.function = mwifiex_cmd_timeout_func; | |
172 | adapter->cmd_timer.data = (unsigned long) adapter; | |
173 | ||
5e6e3a92 BZ |
174 | return 0; |
175 | ||
176 | error: | |
177 | dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n"); | |
178 | ||
93a1df48 | 179 | for (i = 0; i < adapter->priv_num; i++) |
5e6e3a92 | 180 | kfree(adapter->priv[i]); |
93a1df48 | 181 | |
5e6e3a92 BZ |
182 | kfree(adapter); |
183 | ||
184 | return -1; | |
185 | } | |
186 | ||
187 | /* | |
188 | * This function unregisters the device and performs all the necessary | |
189 | * cleanups. | |
190 | * | |
191 | * The following cleanup operations are performed - | |
192 | * - Free the timers | |
193 | * - Free beacon buffers | |
194 | * - Free private structures | |
195 | * - Free adapter structure | |
196 | */ | |
197 | static int mwifiex_unregister(struct mwifiex_adapter *adapter) | |
198 | { | |
270e58e8 | 199 | s32 i; |
5e6e3a92 | 200 | |
4cfda67d AK |
201 | if (adapter->if_ops.cleanup_if) |
202 | adapter->if_ops.cleanup_if(adapter); | |
203 | ||
629873f2 | 204 | del_timer_sync(&adapter->cmd_timer); |
5e6e3a92 BZ |
205 | |
206 | /* Free private structures */ | |
207 | for (i = 0; i < adapter->priv_num; i++) { | |
208 | if (adapter->priv[i]) { | |
209 | mwifiex_free_curr_bcn(adapter->priv[i]); | |
003d87cb | 210 | del_timer_sync(&adapter->priv[i]->scan_delay_timer); |
5e6e3a92 BZ |
211 | kfree(adapter->priv[i]); |
212 | } | |
213 | } | |
214 | ||
215 | kfree(adapter); | |
216 | return 0; | |
217 | } | |
218 | ||
219 | /* | |
220 | * The main process. | |
221 | * | |
222 | * This function is the main procedure of the driver and handles various driver | |
223 | * operations. It runs in a loop and provides the core functionalities. | |
224 | * | |
225 | * The main responsibilities of this function are - | |
226 | * - Ensure concurrency control | |
227 | * - Handle pending interrupts and call interrupt handlers | |
228 | * - Wake up the card if required | |
229 | * - Handle command responses and call response handlers | |
230 | * - Handle events and call event handlers | |
231 | * - Execute pending commands | |
232 | * - Transmit pending data packets | |
233 | */ | |
234 | int mwifiex_main_process(struct mwifiex_adapter *adapter) | |
235 | { | |
236 | int ret = 0; | |
237 | unsigned long flags; | |
4daffe35 | 238 | struct sk_buff *skb; |
5e6e3a92 BZ |
239 | |
240 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
241 | ||
242 | /* Check if already processing */ | |
243 | if (adapter->mwifiex_processing) { | |
244 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
245 | goto exit_main_proc; | |
246 | } else { | |
247 | adapter->mwifiex_processing = true; | |
248 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
249 | } | |
250 | process_start: | |
251 | do { | |
252 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) || | |
253 | (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)) | |
254 | break; | |
255 | ||
256 | /* Handle pending interrupt if any */ | |
257 | if (adapter->int_status) { | |
258 | if (adapter->hs_activated) | |
259 | mwifiex_process_hs_config(adapter); | |
4daffe35 AK |
260 | if (adapter->if_ops.process_int_status) |
261 | adapter->if_ops.process_int_status(adapter); | |
5e6e3a92 BZ |
262 | } |
263 | ||
264 | /* Need to wake up the card ? */ | |
265 | if ((adapter->ps_state == PS_STATE_SLEEP) && | |
266 | (adapter->pm_wakeup_card_req && | |
267 | !adapter->pm_wakeup_fw_try) && | |
f57c1edc YAP |
268 | (is_command_pending(adapter) || |
269 | !mwifiex_wmm_lists_empty(adapter))) { | |
5e6e3a92 BZ |
270 | adapter->pm_wakeup_fw_try = true; |
271 | adapter->if_ops.wakeup(adapter); | |
272 | continue; | |
273 | } | |
4daffe35 | 274 | |
5e6e3a92 BZ |
275 | if (IS_CARD_RX_RCVD(adapter)) { |
276 | adapter->pm_wakeup_fw_try = false; | |
277 | if (adapter->ps_state == PS_STATE_SLEEP) | |
278 | adapter->ps_state = PS_STATE_AWAKE; | |
279 | } else { | |
280 | /* We have tried to wakeup the card already */ | |
281 | if (adapter->pm_wakeup_fw_try) | |
282 | break; | |
283 | if (adapter->ps_state != PS_STATE_AWAKE || | |
284 | adapter->tx_lock_flag) | |
285 | break; | |
286 | ||
f931c770 AK |
287 | if ((adapter->scan_processing && |
288 | !adapter->scan_delay_cnt) || adapter->data_sent || | |
f57c1edc YAP |
289 | mwifiex_wmm_lists_empty(adapter)) { |
290 | if (adapter->cmd_sent || adapter->curr_cmd || | |
291 | (!is_command_pending(adapter))) | |
5e6e3a92 BZ |
292 | break; |
293 | } | |
294 | } | |
295 | ||
4daffe35 AK |
296 | /* Check Rx data for USB */ |
297 | if (adapter->iface_type == MWIFIEX_USB) | |
298 | while ((skb = skb_dequeue(&adapter->usb_rx_data_q))) | |
299 | mwifiex_handle_rx_packet(adapter, skb); | |
300 | ||
20474129 AK |
301 | /* Check for event */ |
302 | if (adapter->event_received) { | |
303 | adapter->event_received = false; | |
304 | mwifiex_process_event(adapter); | |
305 | } | |
306 | ||
5e6e3a92 BZ |
307 | /* Check for Cmd Resp */ |
308 | if (adapter->cmd_resp_received) { | |
309 | adapter->cmd_resp_received = false; | |
310 | mwifiex_process_cmdresp(adapter); | |
311 | ||
312 | /* call mwifiex back when init_fw is done */ | |
313 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { | |
314 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
315 | mwifiex_init_fw_complete(adapter); | |
316 | } | |
317 | } | |
318 | ||
5e6e3a92 BZ |
319 | /* Check if we need to confirm Sleep Request |
320 | received previously */ | |
321 | if (adapter->ps_state == PS_STATE_PRE_SLEEP) { | |
322 | if (!adapter->cmd_sent && !adapter->curr_cmd) | |
323 | mwifiex_check_ps_cond(adapter); | |
324 | } | |
325 | ||
326 | /* * The ps_state may have been changed during processing of | |
327 | * Sleep Request event. | |
328 | */ | |
f57c1edc YAP |
329 | if ((adapter->ps_state == PS_STATE_SLEEP) || |
330 | (adapter->ps_state == PS_STATE_PRE_SLEEP) || | |
331 | (adapter->ps_state == PS_STATE_SLEEP_CFM) || | |
332 | adapter->tx_lock_flag) | |
5e6e3a92 BZ |
333 | continue; |
334 | ||
335 | if (!adapter->cmd_sent && !adapter->curr_cmd) { | |
336 | if (mwifiex_exec_next_cmd(adapter) == -1) { | |
337 | ret = -1; | |
338 | break; | |
339 | } | |
340 | } | |
341 | ||
3249ba73 AK |
342 | if ((!adapter->scan_processing || adapter->scan_delay_cnt) && |
343 | !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
344 | mwifiex_wmm_process_tx(adapter); |
345 | if (adapter->hs_activated) { | |
346 | adapter->is_hs_configured = false; | |
347 | mwifiex_hs_activated_event | |
348 | (mwifiex_get_priv | |
349 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
350 | false); | |
351 | } | |
352 | } | |
353 | ||
354 | if (adapter->delay_null_pkt && !adapter->cmd_sent && | |
f57c1edc YAP |
355 | !adapter->curr_cmd && !is_command_pending(adapter) && |
356 | mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
357 | if (!mwifiex_send_null_packet |
358 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
359 | MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | | |
360 | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { | |
361 | adapter->delay_null_pkt = false; | |
362 | adapter->ps_state = PS_STATE_SLEEP; | |
363 | } | |
364 | break; | |
365 | } | |
366 | } while (true); | |
367 | ||
453b0c3f AK |
368 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
369 | if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter)) { | |
370 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
5e6e3a92 | 371 | goto process_start; |
453b0c3f | 372 | } |
5e6e3a92 | 373 | |
5e6e3a92 BZ |
374 | adapter->mwifiex_processing = false; |
375 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
376 | ||
377 | exit_main_proc: | |
378 | if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) | |
379 | mwifiex_shutdown_drv(adapter); | |
380 | return ret; | |
381 | } | |
601216e1 | 382 | EXPORT_SYMBOL_GPL(mwifiex_main_process); |
5e6e3a92 | 383 | |
5e6e3a92 BZ |
384 | /* |
385 | * This function frees the adapter structure. | |
386 | * | |
387 | * Additionally, this closes the netlink socket, frees the timers | |
388 | * and private structures. | |
389 | */ | |
390 | static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
391 | { | |
392 | if (!adapter) { | |
393 | pr_err("%s: adapter is NULL\n", __func__); | |
394 | return; | |
395 | } | |
396 | ||
397 | mwifiex_unregister(adapter); | |
398 | pr_debug("info: %s: free adapter\n", __func__); | |
399 | } | |
400 | ||
6b41f941 AK |
401 | /* |
402 | * This function cancels all works in the queue and destroys | |
403 | * the main workqueue. | |
404 | */ | |
405 | static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) | |
406 | { | |
407 | flush_workqueue(adapter->workqueue); | |
408 | destroy_workqueue(adapter->workqueue); | |
409 | adapter->workqueue = NULL; | |
410 | } | |
411 | ||
5e6e3a92 | 412 | /* |
59a4cc25 | 413 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
414 | * |
415 | * The main initialization steps followed are - | |
416 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
417 | * - Issue the init commands to firmware |
418 | */ | |
59a4cc25 | 419 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 420 | { |
bec568ff | 421 | int ret; |
59a4cc25 AK |
422 | char fmt[64]; |
423 | struct mwifiex_private *priv; | |
424 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 425 | struct mwifiex_fw_image fw; |
c3afd99f AK |
426 | struct semaphore *sem = adapter->card_sem; |
427 | bool init_failed = false; | |
68b76e99 | 428 | struct wireless_dev *wdev; |
5e6e3a92 | 429 | |
59a4cc25 AK |
430 | if (!firmware) { |
431 | dev_err(adapter->dev, | |
432 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 433 | goto err_dnld_fw; |
5e6e3a92 | 434 | } |
59a4cc25 AK |
435 | |
436 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
437 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
438 | fw.fw_buf = (u8 *) adapter->firmware->data; |
439 | fw.fw_len = adapter->firmware->size; | |
440 | ||
4daffe35 AK |
441 | if (adapter->if_ops.dnld_fw) |
442 | ret = adapter->if_ops.dnld_fw(adapter, &fw); | |
443 | else | |
444 | ret = mwifiex_dnld_fw(adapter, &fw); | |
5e6e3a92 | 445 | if (ret == -1) |
6b41f941 | 446 | goto err_dnld_fw; |
5e6e3a92 BZ |
447 | |
448 | dev_notice(adapter->dev, "WLAN FW is active\n"); | |
449 | ||
388ec385 AK |
450 | if (cal_data_cfg) { |
451 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
452 | adapter->dev)) < 0) | |
453 | dev_err(adapter->dev, | |
454 | "Cal data request_firmware() failed\n"); | |
455 | } | |
456 | ||
232fde06 | 457 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
458 | if (adapter->if_ops.enable_int) { |
459 | if (adapter->if_ops.enable_int(adapter)) | |
460 | goto err_dnld_fw; | |
461 | } | |
232fde06 | 462 | |
5e6e3a92 BZ |
463 | adapter->init_wait_q_woken = false; |
464 | ret = mwifiex_init_fw(adapter); | |
465 | if (ret == -1) { | |
6b41f941 | 466 | goto err_init_fw; |
5e6e3a92 BZ |
467 | } else if (!ret) { |
468 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
469 | goto done; | |
470 | } | |
471 | /* Wait for mwifiex_init to complete */ | |
472 | wait_event_interruptible(adapter->init_wait_q, | |
473 | adapter->init_wait_q_woken); | |
59a4cc25 | 474 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) |
6b41f941 | 475 | goto err_init_fw; |
59a4cc25 | 476 | |
d6bffe8b AP |
477 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
478 | if (mwifiex_register_cfg80211(adapter)) { | |
59a4cc25 | 479 | dev_err(adapter->dev, "cannot register with cfg80211\n"); |
d1af2943 | 480 | goto err_init_fw; |
59a4cc25 AK |
481 | } |
482 | ||
483 | rtnl_lock(); | |
484 | /* Create station interface by default */ | |
68b76e99 AK |
485 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", |
486 | NL80211_IFTYPE_STATION, NULL, NULL); | |
487 | if (IS_ERR(wdev)) { | |
59a4cc25 | 488 | dev_err(adapter->dev, "cannot create default STA interface\n"); |
bec568ff | 489 | rtnl_unlock(); |
59a4cc25 | 490 | goto err_add_intf; |
5e6e3a92 | 491 | } |
59a4cc25 AK |
492 | rtnl_unlock(); |
493 | ||
494 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
495 | dev_notice(adapter->dev, "driver_version = %s\n", fmt); | |
496 | goto done; | |
5e6e3a92 | 497 | |
59a4cc25 | 498 | err_add_intf: |
6b41f941 AK |
499 | wiphy_unregister(adapter->wiphy); |
500 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 501 | err_init_fw: |
232fde06 DD |
502 | if (adapter->if_ops.disable_int) |
503 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 504 | err_dnld_fw: |
59a4cc25 | 505 | pr_debug("info: %s: unregister device\n", __func__); |
6b41f941 AK |
506 | if (adapter->if_ops.unregister_dev) |
507 | adapter->if_ops.unregister_dev(adapter); | |
508 | ||
509 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || | |
510 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
511 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
512 | adapter->init_wait_q_woken = false; | |
513 | ||
514 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
515 | wait_event_interruptible(adapter->init_wait_q, | |
516 | adapter->init_wait_q_woken); | |
517 | } | |
518 | adapter->surprise_removed = true; | |
519 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 520 | init_failed = true; |
5e6e3a92 | 521 | done: |
388ec385 AK |
522 | if (adapter->cal_data) { |
523 | release_firmware(adapter->cal_data); | |
524 | adapter->cal_data = NULL; | |
525 | } | |
c3afd99f AK |
526 | if (adapter->firmware) { |
527 | release_firmware(adapter->firmware); | |
528 | adapter->firmware = NULL; | |
529 | } | |
c3afd99f AK |
530 | if (init_failed) |
531 | mwifiex_free_adapter(adapter); | |
532 | up(sem); | |
59a4cc25 AK |
533 | return; |
534 | } | |
535 | ||
536 | /* | |
537 | * This function initializes the hardware and gets firmware. | |
538 | */ | |
539 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter) | |
540 | { | |
541 | int ret; | |
542 | ||
59a4cc25 AK |
543 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, |
544 | adapter->dev, GFP_KERNEL, adapter, | |
545 | mwifiex_fw_dpc); | |
546 | if (ret < 0) | |
547 | dev_err(adapter->dev, | |
548 | "request_firmware_nowait() returned error %d\n", ret); | |
5e6e3a92 BZ |
549 | return ret; |
550 | } | |
551 | ||
5e6e3a92 BZ |
552 | /* |
553 | * CFG802.11 network device handler for open. | |
554 | * | |
555 | * Starts the data queue. | |
556 | */ | |
557 | static int | |
558 | mwifiex_open(struct net_device *dev) | |
559 | { | |
bbea3bc4 | 560 | netif_tx_start_all_queues(dev); |
5e6e3a92 BZ |
561 | return 0; |
562 | } | |
563 | ||
564 | /* | |
565 | * CFG802.11 network device handler for close. | |
566 | */ | |
567 | static int | |
568 | mwifiex_close(struct net_device *dev) | |
569 | { | |
f162cac8 AK |
570 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
571 | ||
572 | if (priv->scan_request) { | |
573 | dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n"); | |
574 | cfg80211_scan_done(priv->scan_request, 1); | |
575 | priv->scan_request = NULL; | |
75ab753d | 576 | priv->scan_aborting = true; |
f162cac8 AK |
577 | } |
578 | ||
5e6e3a92 BZ |
579 | return 0; |
580 | } | |
581 | ||
e39faa73 SP |
582 | /* |
583 | * Add buffer into wmm tx queue and queue work to transmit it. | |
584 | */ | |
585 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
586 | { | |
47411a06 AP |
587 | struct netdev_queue *txq; |
588 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
589 | ||
590 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
591 | txq = netdev_get_tx_queue(priv->netdev, index); | |
592 | if (!netif_tx_queue_stopped(txq)) { | |
593 | netif_tx_stop_queue(txq); | |
594 | dev_dbg(priv->adapter->dev, "stop queue: %d\n", index); | |
595 | } | |
596 | } | |
597 | ||
e39faa73 | 598 | atomic_inc(&priv->adapter->tx_pending); |
47411a06 | 599 | mwifiex_wmm_add_buf_txqueue(priv, skb); |
e39faa73 SP |
600 | |
601 | if (priv->adapter->scan_delay_cnt) | |
602 | atomic_set(&priv->adapter->is_tx_received, true); | |
603 | ||
e39faa73 SP |
604 | queue_work(priv->adapter->workqueue, &priv->adapter->main_work); |
605 | ||
606 | return 0; | |
607 | } | |
608 | ||
5e6e3a92 BZ |
609 | /* |
610 | * CFG802.11 network device handler for data transmission. | |
611 | */ | |
612 | static int | |
613 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
614 | { | |
615 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 616 | struct sk_buff *new_skb; |
5e6e3a92 BZ |
617 | struct mwifiex_txinfo *tx_info; |
618 | ||
9da9a3b2 | 619 | dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n", |
f57c1edc | 620 | jiffies, priv->bss_type, priv->bss_num); |
5e6e3a92 BZ |
621 | |
622 | if (priv->adapter->surprise_removed) { | |
b53575ec | 623 | kfree_skb(skb); |
5e6e3a92 BZ |
624 | priv->stats.tx_dropped++; |
625 | return 0; | |
626 | } | |
627 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
628 | dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 629 | kfree_skb(skb); |
5e6e3a92 BZ |
630 | priv->stats.tx_dropped++; |
631 | return 0; | |
632 | } | |
633 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
634 | dev_dbg(priv->adapter->dev, | |
635 | "data: Tx: insufficient skb headroom %d\n", | |
f57c1edc | 636 | skb_headroom(skb)); |
5e6e3a92 BZ |
637 | /* Insufficient skb headroom - allocate a new skb */ |
638 | new_skb = | |
639 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
640 | if (unlikely(!new_skb)) { | |
641 | dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n"); | |
b53575ec | 642 | kfree_skb(skb); |
5e6e3a92 BZ |
643 | priv->stats.tx_dropped++; |
644 | return 0; | |
645 | } | |
646 | kfree_skb(skb); | |
647 | skb = new_skb; | |
648 | dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n", | |
f57c1edc | 649 | skb_headroom(skb)); |
5e6e3a92 BZ |
650 | } |
651 | ||
652 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
d76744a9 | 653 | memset(tx_info, 0, sizeof(*tx_info)); |
9da9a3b2 YAP |
654 | tx_info->bss_num = priv->bss_num; |
655 | tx_info->bss_type = priv->bss_type; | |
a1ed4849 | 656 | tx_info->pkt_len = skb->len; |
47411a06 AP |
657 | |
658 | /* Record the current time the packet was queued; used to | |
659 | * determine the amount of time the packet was queued in | |
660 | * the driver before it was sent to the firmware. | |
661 | * The delay is then sent along with the packet to the | |
662 | * firmware for aggregate delay calculation for stats and | |
663 | * MSDU lifetime expiry. | |
664 | */ | |
c64800e7 | 665 | __net_timestamp(skb); |
5e6e3a92 | 666 | |
e39faa73 | 667 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
668 | |
669 | return 0; | |
670 | } | |
671 | ||
672 | /* | |
673 | * CFG802.11 network device handler for setting MAC address. | |
674 | */ | |
675 | static int | |
676 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
677 | { | |
678 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 679 | struct sockaddr *hw_addr = addr; |
270e58e8 | 680 | int ret; |
5e6e3a92 BZ |
681 | |
682 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
683 | ||
600f5d90 | 684 | /* Send request to firmware */ |
fa0ecbb9 BZ |
685 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
686 | HostCmd_ACT_GEN_SET, 0, NULL, true); | |
600f5d90 AK |
687 | |
688 | if (!ret) | |
689 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
690 | else | |
f57c1edc YAP |
691 | dev_err(priv->adapter->dev, |
692 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 693 | |
5e6e3a92 BZ |
694 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
695 | ||
600f5d90 | 696 | return ret; |
5e6e3a92 BZ |
697 | } |
698 | ||
699 | /* | |
700 | * CFG802.11 network device handler for setting multicast list. | |
701 | */ | |
702 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
703 | { | |
704 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
705 | struct mwifiex_multicast_list mcast_list; |
706 | ||
707 | if (dev->flags & IFF_PROMISC) { | |
708 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
709 | } else if (dev->flags & IFF_ALLMULTI || | |
710 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
711 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
712 | } else { | |
713 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
714 | mcast_list.num_multicast_addr = |
715 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
716 | } |
717 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
718 | } |
719 | ||
720 | /* | |
721 | * CFG802.11 network device handler for transmission timeout. | |
722 | */ | |
723 | static void | |
724 | mwifiex_tx_timeout(struct net_device *dev) | |
725 | { | |
726 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
727 | ||
5e6e3a92 | 728 | priv->num_tx_timeout++; |
8908c7d5 AN |
729 | priv->tx_timeout_cnt++; |
730 | dev_err(priv->adapter->dev, | |
731 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
732 | jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num); | |
733 | mwifiex_set_trans_start(dev); | |
734 | ||
735 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
736 | priv->adapter->if_ops.card_reset) { | |
737 | dev_err(priv->adapter->dev, | |
738 | "tx_timeout_cnt exceeds threshold. Triggering card reset!\n"); | |
739 | priv->adapter->if_ops.card_reset(priv->adapter); | |
740 | } | |
5e6e3a92 BZ |
741 | } |
742 | ||
743 | /* | |
744 | * CFG802.11 network device handler for statistics retrieval. | |
745 | */ | |
746 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
747 | { | |
748 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
749 | ||
750 | return &priv->stats; | |
751 | } | |
752 | ||
47411a06 | 753 | static u16 |
f663dd9a | 754 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 755 | void *accel_priv, select_queue_fallback_t fallback) |
47411a06 | 756 | { |
fa9ffc74 | 757 | skb->priority = cfg80211_classify8021d(skb, NULL); |
47411a06 AP |
758 | return mwifiex_1d_to_wmm_queue[skb->priority]; |
759 | } | |
760 | ||
5e6e3a92 BZ |
761 | /* Network device handlers */ |
762 | static const struct net_device_ops mwifiex_netdev_ops = { | |
763 | .ndo_open = mwifiex_open, | |
764 | .ndo_stop = mwifiex_close, | |
765 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
766 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
767 | .ndo_tx_timeout = mwifiex_tx_timeout, | |
768 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 769 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 770 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
771 | }; |
772 | ||
773 | /* | |
774 | * This function initializes the private structure parameters. | |
775 | * | |
776 | * The following wait queues are initialized - | |
777 | * - IOCTL wait queue | |
778 | * - Command wait queue | |
779 | * - Statistics wait queue | |
780 | * | |
781 | * ...and the following default parameters are set - | |
782 | * - Current key index : Set to 0 | |
783 | * - Rate index : Set to auto | |
784 | * - Media connected : Set to disconnected | |
785 | * - Adhoc link sensed : Set to false | |
786 | * - Nick name : Set to null | |
787 | * - Number of Tx timeout : Set to 0 | |
788 | * - Device address : Set to current address | |
789 | * | |
790 | * In addition, the CFG80211 work queue is also created. | |
791 | */ | |
93a1df48 YAP |
792 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
793 | struct net_device *dev) | |
5e6e3a92 BZ |
794 | { |
795 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 796 | dev->destructor = free_netdev; |
5e6e3a92 | 797 | /* Initialize private structure */ |
5e6e3a92 BZ |
798 | priv->current_key_index = 0; |
799 | priv->media_connected = false; | |
800 | memset(&priv->nick_name, 0, sizeof(priv->nick_name)); | |
ede98bfa AP |
801 | memset(priv->mgmt_ie, 0, |
802 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
803 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
804 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
805 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
806 | priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK; | |
5e6e3a92 | 807 | priv->num_tx_timeout = 0; |
5e6e3a92 BZ |
808 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
809 | } | |
810 | ||
5e6e3a92 BZ |
811 | /* |
812 | * This function check if command is pending. | |
813 | */ | |
814 | int is_command_pending(struct mwifiex_adapter *adapter) | |
815 | { | |
816 | unsigned long flags; | |
817 | int is_cmd_pend_q_empty; | |
818 | ||
819 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
820 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
821 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
822 | ||
823 | return !is_cmd_pend_q_empty; | |
824 | } | |
825 | ||
5e6e3a92 BZ |
826 | /* |
827 | * This is the main work queue function. | |
828 | * | |
829 | * It handles the main process, which in turn handles the complete | |
830 | * driver operations. | |
831 | */ | |
832 | static void mwifiex_main_work_queue(struct work_struct *work) | |
833 | { | |
834 | struct mwifiex_adapter *adapter = | |
835 | container_of(work, struct mwifiex_adapter, main_work); | |
836 | ||
837 | if (adapter->surprise_removed) | |
838 | return; | |
839 | mwifiex_main_process(adapter); | |
840 | } | |
841 | ||
5e6e3a92 BZ |
842 | /* |
843 | * This function adds the card. | |
844 | * | |
845 | * This function follows the following major steps to set up the device - | |
846 | * - Initialize software. This includes probing the card, registering | |
847 | * the interface operations table, and allocating/initializing the | |
848 | * adapter structure | |
849 | * - Set up the netlink socket | |
850 | * - Create and start the main work queue | |
851 | * - Register the device | |
852 | * - Initialize firmware and hardware | |
853 | * - Add logical interfaces | |
854 | */ | |
855 | int | |
856 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 857 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 858 | { |
2be7859f | 859 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
860 | |
861 | if (down_interruptible(sem)) | |
862 | goto exit_sem_err; | |
863 | ||
93a1df48 | 864 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
865 | pr_err("%s: software init failed\n", __func__); |
866 | goto err_init_sw; | |
867 | } | |
868 | ||
d930faee | 869 | adapter->iface_type = iface_type; |
6b41f941 | 870 | adapter->card_sem = sem; |
d930faee | 871 | |
5e6e3a92 | 872 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
873 | adapter->surprise_removed = false; |
874 | init_waitqueue_head(&adapter->init_wait_q); | |
875 | adapter->is_suspended = false; | |
876 | adapter->hs_activated = false; | |
877 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 | 878 | init_waitqueue_head(&adapter->cmd_wait_q.wait); |
600f5d90 | 879 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 880 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 881 | |
448a71cc AK |
882 | adapter->workqueue = |
883 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
884 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
5e6e3a92 BZ |
885 | if (!adapter->workqueue) |
886 | goto err_kmalloc; | |
887 | ||
888 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
92c2538f AK |
889 | if (adapter->if_ops.iface_work) |
890 | INIT_WORK(&adapter->iface_work, adapter->if_ops.iface_work); | |
5e6e3a92 BZ |
891 | |
892 | /* Register the device. Fill up the private data structure with relevant | |
232fde06 | 893 | information from the card. */ |
5e6e3a92 BZ |
894 | if (adapter->if_ops.register_dev(adapter)) { |
895 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
896 | goto err_registerdev; | |
897 | } | |
898 | ||
5e6e3a92 BZ |
899 | if (mwifiex_init_hw_fw(adapter)) { |
900 | pr_err("%s: firmware init failed\n", __func__); | |
901 | goto err_init_fw; | |
902 | } | |
2be7859f | 903 | |
5e6e3a92 BZ |
904 | return 0; |
905 | ||
5e6e3a92 | 906 | err_init_fw: |
5e6e3a92 | 907 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
908 | if (adapter->if_ops.unregister_dev) |
909 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
910 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) || |
911 | (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) { | |
912 | pr_debug("info: %s: shutdown mwifiex\n", __func__); | |
913 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
914 | |
915 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
916 | wait_event_interruptible(adapter->init_wait_q, |
917 | adapter->init_wait_q_woken); | |
918 | } | |
6b41f941 AK |
919 | err_registerdev: |
920 | adapter->surprise_removed = true; | |
921 | mwifiex_terminate_workqueue(adapter); | |
922 | err_kmalloc: | |
5e6e3a92 BZ |
923 | mwifiex_free_adapter(adapter); |
924 | ||
925 | err_init_sw: | |
926 | up(sem); | |
927 | ||
928 | exit_sem_err: | |
929 | return -1; | |
930 | } | |
931 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
932 | ||
933 | /* | |
934 | * This function removes the card. | |
935 | * | |
936 | * This function follows the following major steps to remove the device - | |
937 | * - Stop data traffic | |
938 | * - Shutdown firmware | |
939 | * - Remove the logical interfaces | |
940 | * - Terminate the work queue | |
941 | * - Unregister the device | |
942 | * - Free the adapter structure | |
943 | */ | |
944 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
945 | { | |
946 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
947 | int i; |
948 | ||
949 | if (down_interruptible(sem)) | |
950 | goto exit_sem_err; | |
951 | ||
952 | if (!adapter) | |
953 | goto exit_remove; | |
954 | ||
232fde06 DD |
955 | /* We can no longer handle interrupts once we start doing the teardown |
956 | * below. */ | |
957 | if (adapter->if_ops.disable_int) | |
958 | adapter->if_ops.disable_int(adapter); | |
959 | ||
5e6e3a92 BZ |
960 | adapter->surprise_removed = true; |
961 | ||
962 | /* Stop data */ | |
963 | for (i = 0; i < adapter->priv_num; i++) { | |
964 | priv = adapter->priv[i]; | |
93a1df48 | 965 | if (priv && priv->netdev) { |
47411a06 | 966 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
967 | if (netif_carrier_ok(priv->netdev)) |
968 | netif_carrier_off(priv->netdev); | |
969 | } | |
970 | } | |
971 | ||
972 | dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n"); | |
973 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
974 | |
975 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
976 | wait_event_interruptible(adapter->init_wait_q, |
977 | adapter->init_wait_q_woken); | |
978 | dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n"); | |
979 | if (atomic_read(&adapter->rx_pending) || | |
980 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 981 | atomic_read(&adapter->cmd_pending)) { |
5e6e3a92 | 982 | dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, " |
600f5d90 | 983 | "cmd_pending=%d\n", |
5e6e3a92 BZ |
984 | atomic_read(&adapter->rx_pending), |
985 | atomic_read(&adapter->tx_pending), | |
600f5d90 | 986 | atomic_read(&adapter->cmd_pending)); |
5e6e3a92 BZ |
987 | } |
988 | ||
93a1df48 YAP |
989 | for (i = 0; i < adapter->priv_num; i++) { |
990 | priv = adapter->priv[i]; | |
991 | ||
992 | if (!priv) | |
993 | continue; | |
994 | ||
995 | rtnl_lock(); | |
2da8cbf8 | 996 | if (priv->wdev && priv->netdev) |
84efbb84 | 997 | mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev); |
93a1df48 YAP |
998 | rtnl_unlock(); |
999 | } | |
1000 | ||
c2868ade AK |
1001 | wiphy_unregister(adapter->wiphy); |
1002 | wiphy_free(adapter->wiphy); | |
64b05e2f | 1003 | |
5e6e3a92 BZ |
1004 | mwifiex_terminate_workqueue(adapter); |
1005 | ||
1006 | /* Unregister device */ | |
1007 | dev_dbg(adapter->dev, "info: unregister device\n"); | |
4daffe35 AK |
1008 | if (adapter->if_ops.unregister_dev) |
1009 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
1010 | /* Free adapter structure */ |
1011 | dev_dbg(adapter->dev, "info: free adapter\n"); | |
1012 | mwifiex_free_adapter(adapter); | |
1013 | ||
1014 | exit_remove: | |
1015 | up(sem); | |
1016 | exit_sem_err: | |
1017 | return 0; | |
1018 | } | |
1019 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1020 | ||
1021 | /* | |
1022 | * This function initializes the module. | |
1023 | * | |
1024 | * The debug FS is also initialized if configured. | |
1025 | */ | |
1026 | static int | |
1027 | mwifiex_init_module(void) | |
1028 | { | |
1029 | #ifdef CONFIG_DEBUG_FS | |
1030 | mwifiex_debugfs_init(); | |
1031 | #endif | |
1032 | return 0; | |
1033 | } | |
1034 | ||
1035 | /* | |
1036 | * This function cleans up the module. | |
1037 | * | |
1038 | * The debug FS is removed if available. | |
1039 | */ | |
1040 | static void | |
1041 | mwifiex_cleanup_module(void) | |
1042 | { | |
1043 | #ifdef CONFIG_DEBUG_FS | |
1044 | mwifiex_debugfs_remove(); | |
1045 | #endif | |
1046 | } | |
1047 | ||
1048 | module_init(mwifiex_init_module); | |
1049 | module_exit(mwifiex_cleanup_module); | |
1050 | ||
1051 | MODULE_AUTHOR("Marvell International Ltd."); | |
1052 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1053 | MODULE_VERSION(VERSION); | |
1054 | MODULE_LICENSE("GPL v2"); |