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 | |
0013c7ce AP |
31 | static unsigned short driver_mode; |
32 | module_param(driver_mode, ushort, 0); | |
33 | MODULE_PARM_DESC(driver_mode, | |
34 | "station=0x1(default), ap-sta=0x3, station-p2p=0x5, ap-sta-p2p=0x7"); | |
35 | ||
5e6e3a92 BZ |
36 | /* |
37 | * This function registers the device and performs all the necessary | |
38 | * initializations. | |
39 | * | |
40 | * The following initialization operations are performed - | |
41 | * - Allocate adapter structure | |
42 | * - Save interface specific operations table in adapter | |
43 | * - Call interface specific initialization routine | |
44 | * - Allocate private structures | |
45 | * - Set default adapter structure parameters | |
46 | * - Initialize locks | |
47 | * | |
48 | * In case of any errors during inittialization, this function also ensures | |
49 | * proper cleanup before exiting. | |
50 | */ | |
51 | static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops, | |
287546df | 52 | void **padapter) |
5e6e3a92 | 53 | { |
2be7859f AK |
54 | struct mwifiex_adapter *adapter; |
55 | int i; | |
5e6e3a92 BZ |
56 | |
57 | adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL); | |
5e6e3a92 | 58 | if (!adapter) |
b53575ec | 59 | return -ENOMEM; |
5e6e3a92 | 60 | |
287546df | 61 | *padapter = adapter; |
5e6e3a92 BZ |
62 | adapter->card = card; |
63 | ||
64 | /* Save interface specific operations in adapter */ | |
65 | memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops)); | |
66 | ||
67 | /* card specific initialization has been deferred until now .. */ | |
4daffe35 AK |
68 | if (adapter->if_ops.init_if) |
69 | if (adapter->if_ops.init_if(adapter)) | |
70 | goto error; | |
5e6e3a92 BZ |
71 | |
72 | adapter->priv_num = 0; | |
5e6e3a92 | 73 | |
64b05e2f AP |
74 | for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { |
75 | /* Allocate memory for private structure */ | |
76 | adapter->priv[i] = | |
77 | kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL); | |
78 | if (!adapter->priv[i]) | |
79 | goto error; | |
93a1df48 | 80 | |
64b05e2f | 81 | adapter->priv[i]->adapter = adapter; |
64b05e2f AP |
82 | adapter->priv_num++; |
83 | } | |
44b815c6 | 84 | mwifiex_init_lock_list(adapter); |
5e6e3a92 | 85 | |
c6c33e77 JL |
86 | setup_timer(&adapter->cmd_timer, mwifiex_cmd_timeout_func, |
87 | (unsigned long)adapter); | |
5e6e3a92 | 88 | |
5e6e3a92 BZ |
89 | return 0; |
90 | ||
91 | error: | |
92 | dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n"); | |
93 | ||
93a1df48 | 94 | for (i = 0; i < adapter->priv_num; i++) |
5e6e3a92 | 95 | kfree(adapter->priv[i]); |
93a1df48 | 96 | |
5e6e3a92 BZ |
97 | kfree(adapter); |
98 | ||
99 | return -1; | |
100 | } | |
101 | ||
102 | /* | |
103 | * This function unregisters the device and performs all the necessary | |
104 | * cleanups. | |
105 | * | |
106 | * The following cleanup operations are performed - | |
107 | * - Free the timers | |
108 | * - Free beacon buffers | |
109 | * - Free private structures | |
110 | * - Free adapter structure | |
111 | */ | |
112 | static int mwifiex_unregister(struct mwifiex_adapter *adapter) | |
113 | { | |
270e58e8 | 114 | s32 i; |
5e6e3a92 | 115 | |
4cfda67d AK |
116 | if (adapter->if_ops.cleanup_if) |
117 | adapter->if_ops.cleanup_if(adapter); | |
118 | ||
629873f2 | 119 | del_timer_sync(&adapter->cmd_timer); |
5e6e3a92 BZ |
120 | |
121 | /* Free private structures */ | |
122 | for (i = 0; i < adapter->priv_num; i++) { | |
123 | if (adapter->priv[i]) { | |
124 | mwifiex_free_curr_bcn(adapter->priv[i]); | |
125 | kfree(adapter->priv[i]); | |
126 | } | |
127 | } | |
128 | ||
bf354433 | 129 | vfree(adapter->chan_stats); |
5e6e3a92 BZ |
130 | kfree(adapter); |
131 | return 0; | |
132 | } | |
133 | ||
b2713f67 SL |
134 | void mwifiex_queue_main_work(struct mwifiex_adapter *adapter) |
135 | { | |
136 | unsigned long flags; | |
137 | ||
138 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
139 | if (adapter->mwifiex_processing) { | |
140 | adapter->more_task_flag = true; | |
141 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
142 | } else { | |
143 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
144 | queue_work(adapter->workqueue, &adapter->main_work); | |
145 | } | |
146 | } | |
147 | EXPORT_SYMBOL_GPL(mwifiex_queue_main_work); | |
148 | ||
149 | static void mwifiex_queue_rx_work(struct mwifiex_adapter *adapter) | |
150 | { | |
151 | unsigned long flags; | |
152 | ||
153 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
154 | if (adapter->rx_processing) { | |
155 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
156 | } else { | |
157 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
158 | queue_work(adapter->rx_workqueue, &adapter->rx_work); | |
159 | } | |
160 | } | |
161 | ||
6e251174 AP |
162 | static int mwifiex_process_rx(struct mwifiex_adapter *adapter) |
163 | { | |
164 | unsigned long flags; | |
165 | struct sk_buff *skb; | |
6e251174 AP |
166 | |
167 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
168 | if (adapter->rx_processing || adapter->rx_locked) { | |
169 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
170 | goto exit_rx_proc; | |
171 | } else { | |
172 | adapter->rx_processing = true; | |
173 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
174 | } | |
175 | ||
176 | /* Check for Rx data */ | |
177 | while ((skb = skb_dequeue(&adapter->rx_data_q))) { | |
178 | atomic_dec(&adapter->rx_pending); | |
381e9fff AK |
179 | if ((adapter->delay_main_work || |
180 | adapter->iface_type == MWIFIEX_USB) && | |
b43a0d9d | 181 | (atomic_read(&adapter->rx_pending) < LOW_RX_PENDING)) { |
cf6a64fd AK |
182 | if (adapter->if_ops.submit_rem_rx_urbs) |
183 | adapter->if_ops.submit_rem_rx_urbs(adapter); | |
6e251174 | 184 | adapter->delay_main_work = false; |
b2713f67 | 185 | mwifiex_queue_main_work(adapter); |
6e251174 AP |
186 | } |
187 | mwifiex_handle_rx_packet(adapter, skb); | |
188 | } | |
189 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
190 | adapter->rx_processing = false; | |
191 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
192 | ||
6e251174 AP |
193 | exit_rx_proc: |
194 | return 0; | |
195 | } | |
196 | ||
5e6e3a92 BZ |
197 | /* |
198 | * The main process. | |
199 | * | |
200 | * This function is the main procedure of the driver and handles various driver | |
201 | * operations. It runs in a loop and provides the core functionalities. | |
202 | * | |
203 | * The main responsibilities of this function are - | |
204 | * - Ensure concurrency control | |
205 | * - Handle pending interrupts and call interrupt handlers | |
206 | * - Wake up the card if required | |
207 | * - Handle command responses and call response handlers | |
208 | * - Handle events and call event handlers | |
209 | * - Execute pending commands | |
210 | * - Transmit pending data packets | |
211 | */ | |
212 | int mwifiex_main_process(struct mwifiex_adapter *adapter) | |
213 | { | |
214 | int ret = 0; | |
215 | unsigned long flags; | |
216 | ||
217 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
218 | ||
219 | /* Check if already processing */ | |
a9adbcb3 | 220 | if (adapter->mwifiex_processing || adapter->main_locked) { |
04c7b363 | 221 | adapter->more_task_flag = true; |
5e6e3a92 BZ |
222 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
223 | goto exit_main_proc; | |
224 | } else { | |
225 | adapter->mwifiex_processing = true; | |
5e6e3a92 BZ |
226 | } |
227 | process_start: | |
228 | do { | |
04c7b363 SL |
229 | adapter->more_task_flag = false; |
230 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
5e6e3a92 BZ |
231 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) || |
232 | (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)) | |
233 | break; | |
234 | ||
381e9fff AK |
235 | /* For non-USB interfaces, If we process interrupts first, it |
236 | * would increase RX pending even further. Avoid this by | |
237 | * checking if rx_pending has crossed high threshold and | |
238 | * schedule rx work queue and then process interrupts. | |
239 | * For USB interface, there are no interrupts. We already have | |
240 | * HIGH_RX_PENDING check in usb.c | |
6e251174 | 241 | */ |
381e9fff AK |
242 | if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING && |
243 | adapter->iface_type != MWIFIEX_USB) { | |
6e251174 | 244 | adapter->delay_main_work = true; |
b2713f67 | 245 | mwifiex_queue_rx_work(adapter); |
6e251174 AP |
246 | break; |
247 | } | |
248 | ||
5e6e3a92 BZ |
249 | /* Handle pending interrupt if any */ |
250 | if (adapter->int_status) { | |
251 | if (adapter->hs_activated) | |
252 | mwifiex_process_hs_config(adapter); | |
4daffe35 AK |
253 | if (adapter->if_ops.process_int_status) |
254 | adapter->if_ops.process_int_status(adapter); | |
5e6e3a92 BZ |
255 | } |
256 | ||
6e251174 | 257 | if (adapter->rx_work_enabled && adapter->data_received) |
b2713f67 | 258 | mwifiex_queue_rx_work(adapter); |
6e251174 | 259 | |
5e6e3a92 BZ |
260 | /* Need to wake up the card ? */ |
261 | if ((adapter->ps_state == PS_STATE_SLEEP) && | |
262 | (adapter->pm_wakeup_card_req && | |
263 | !adapter->pm_wakeup_fw_try) && | |
f57c1edc YAP |
264 | (is_command_pending(adapter) || |
265 | !mwifiex_wmm_lists_empty(adapter))) { | |
5e6e3a92 | 266 | adapter->pm_wakeup_fw_try = true; |
4636187d | 267 | mod_timer(&adapter->wakeup_timer, jiffies + (HZ*3)); |
5e6e3a92 | 268 | adapter->if_ops.wakeup(adapter); |
04c7b363 | 269 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
5e6e3a92 BZ |
270 | continue; |
271 | } | |
4daffe35 | 272 | |
5e6e3a92 | 273 | if (IS_CARD_RX_RCVD(adapter)) { |
6e251174 | 274 | adapter->data_received = false; |
5e6e3a92 | 275 | adapter->pm_wakeup_fw_try = false; |
6e9344fd | 276 | del_timer(&adapter->wakeup_timer); |
5e6e3a92 BZ |
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 | ||
5ec39efa | 287 | if ((!adapter->scan_chan_gap_enabled && |
5ec39efa | 288 | adapter->scan_processing) || 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 | ||
20474129 AK |
296 | /* Check for event */ |
297 | if (adapter->event_received) { | |
298 | adapter->event_received = false; | |
299 | mwifiex_process_event(adapter); | |
300 | } | |
301 | ||
5e6e3a92 BZ |
302 | /* Check for Cmd Resp */ |
303 | if (adapter->cmd_resp_received) { | |
304 | adapter->cmd_resp_received = false; | |
305 | mwifiex_process_cmdresp(adapter); | |
306 | ||
307 | /* call mwifiex back when init_fw is done */ | |
308 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { | |
309 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
310 | mwifiex_init_fw_complete(adapter); | |
311 | } | |
312 | } | |
313 | ||
5e6e3a92 BZ |
314 | /* Check if we need to confirm Sleep Request |
315 | received previously */ | |
316 | if (adapter->ps_state == PS_STATE_PRE_SLEEP) { | |
317 | if (!adapter->cmd_sent && !adapter->curr_cmd) | |
318 | mwifiex_check_ps_cond(adapter); | |
319 | } | |
320 | ||
321 | /* * The ps_state may have been changed during processing of | |
322 | * Sleep Request event. | |
323 | */ | |
f57c1edc YAP |
324 | if ((adapter->ps_state == PS_STATE_SLEEP) || |
325 | (adapter->ps_state == PS_STATE_PRE_SLEEP) || | |
326 | (adapter->ps_state == PS_STATE_SLEEP_CFM) || | |
04c7b363 SL |
327 | adapter->tx_lock_flag){ |
328 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
5e6e3a92 | 329 | continue; |
04c7b363 | 330 | } |
5e6e3a92 BZ |
331 | |
332 | if (!adapter->cmd_sent && !adapter->curr_cmd) { | |
333 | if (mwifiex_exec_next_cmd(adapter) == -1) { | |
334 | ret = -1; | |
335 | break; | |
336 | } | |
337 | } | |
338 | ||
5ec39efa | 339 | if ((adapter->scan_chan_gap_enabled || |
d8d91253 | 340 | !adapter->scan_processing) && |
3249ba73 | 341 | !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) { |
5e6e3a92 BZ |
342 | mwifiex_wmm_process_tx(adapter); |
343 | if (adapter->hs_activated) { | |
344 | adapter->is_hs_configured = false; | |
345 | mwifiex_hs_activated_event | |
346 | (mwifiex_get_priv | |
347 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
348 | false); | |
349 | } | |
350 | } | |
351 | ||
352 | if (adapter->delay_null_pkt && !adapter->cmd_sent && | |
f57c1edc YAP |
353 | !adapter->curr_cmd && !is_command_pending(adapter) && |
354 | mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
355 | if (!mwifiex_send_null_packet |
356 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
357 | MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | | |
358 | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { | |
359 | adapter->delay_null_pkt = false; | |
360 | adapter->ps_state = PS_STATE_SLEEP; | |
361 | } | |
362 | break; | |
363 | } | |
04c7b363 | 364 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
5e6e3a92 BZ |
365 | } while (true); |
366 | ||
453b0c3f | 367 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
04c7b363 | 368 | if (adapter->more_task_flag) |
5e6e3a92 | 369 | goto process_start; |
5e6e3a92 BZ |
370 | adapter->mwifiex_processing = false; |
371 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
372 | ||
373 | exit_main_proc: | |
374 | if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) | |
375 | mwifiex_shutdown_drv(adapter); | |
376 | return ret; | |
377 | } | |
601216e1 | 378 | EXPORT_SYMBOL_GPL(mwifiex_main_process); |
5e6e3a92 | 379 | |
5e6e3a92 BZ |
380 | /* |
381 | * This function frees the adapter structure. | |
382 | * | |
383 | * Additionally, this closes the netlink socket, frees the timers | |
384 | * and private structures. | |
385 | */ | |
386 | static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
387 | { | |
388 | if (!adapter) { | |
389 | pr_err("%s: adapter is NULL\n", __func__); | |
390 | return; | |
391 | } | |
392 | ||
393 | mwifiex_unregister(adapter); | |
394 | pr_debug("info: %s: free adapter\n", __func__); | |
395 | } | |
396 | ||
6b41f941 AK |
397 | /* |
398 | * This function cancels all works in the queue and destroys | |
399 | * the main workqueue. | |
400 | */ | |
401 | static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) | |
402 | { | |
403 | flush_workqueue(adapter->workqueue); | |
404 | destroy_workqueue(adapter->workqueue); | |
405 | adapter->workqueue = NULL; | |
6e251174 AP |
406 | |
407 | if (adapter->rx_workqueue) { | |
408 | flush_workqueue(adapter->rx_workqueue); | |
409 | destroy_workqueue(adapter->rx_workqueue); | |
410 | adapter->rx_workqueue = NULL; | |
411 | } | |
6b41f941 AK |
412 | } |
413 | ||
5e6e3a92 | 414 | /* |
59a4cc25 | 415 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
416 | * |
417 | * The main initialization steps followed are - | |
418 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
419 | * - Issue the init commands to firmware |
420 | */ | |
59a4cc25 | 421 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 422 | { |
bec568ff | 423 | int ret; |
59a4cc25 AK |
424 | char fmt[64]; |
425 | struct mwifiex_private *priv; | |
426 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 427 | struct mwifiex_fw_image fw; |
c3afd99f AK |
428 | struct semaphore *sem = adapter->card_sem; |
429 | bool init_failed = false; | |
68b76e99 | 430 | struct wireless_dev *wdev; |
5e6e3a92 | 431 | |
59a4cc25 AK |
432 | if (!firmware) { |
433 | dev_err(adapter->dev, | |
434 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 435 | goto err_dnld_fw; |
5e6e3a92 | 436 | } |
59a4cc25 AK |
437 | |
438 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
439 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
440 | fw.fw_buf = (u8 *) adapter->firmware->data; |
441 | fw.fw_len = adapter->firmware->size; | |
442 | ||
4daffe35 AK |
443 | if (adapter->if_ops.dnld_fw) |
444 | ret = adapter->if_ops.dnld_fw(adapter, &fw); | |
445 | else | |
446 | ret = mwifiex_dnld_fw(adapter, &fw); | |
5e6e3a92 | 447 | if (ret == -1) |
6b41f941 | 448 | goto err_dnld_fw; |
5e6e3a92 BZ |
449 | |
450 | dev_notice(adapter->dev, "WLAN FW is active\n"); | |
451 | ||
388ec385 AK |
452 | if (cal_data_cfg) { |
453 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
454 | adapter->dev)) < 0) | |
455 | dev_err(adapter->dev, | |
456 | "Cal data request_firmware() failed\n"); | |
457 | } | |
458 | ||
232fde06 | 459 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
460 | if (adapter->if_ops.enable_int) { |
461 | if (adapter->if_ops.enable_int(adapter)) | |
462 | goto err_dnld_fw; | |
463 | } | |
232fde06 | 464 | |
5e6e3a92 BZ |
465 | adapter->init_wait_q_woken = false; |
466 | ret = mwifiex_init_fw(adapter); | |
467 | if (ret == -1) { | |
6b41f941 | 468 | goto err_init_fw; |
5e6e3a92 BZ |
469 | } else if (!ret) { |
470 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
471 | goto done; | |
472 | } | |
473 | /* Wait for mwifiex_init to complete */ | |
474 | wait_event_interruptible(adapter->init_wait_q, | |
475 | adapter->init_wait_q_woken); | |
59a4cc25 | 476 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) |
6b41f941 | 477 | goto err_init_fw; |
59a4cc25 | 478 | |
d6bffe8b AP |
479 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
480 | if (mwifiex_register_cfg80211(adapter)) { | |
59a4cc25 | 481 | dev_err(adapter->dev, "cannot register with cfg80211\n"); |
d1af2943 | 482 | goto err_init_fw; |
59a4cc25 AK |
483 | } |
484 | ||
bf354433 AP |
485 | if (mwifiex_init_channel_scan_gap(adapter)) { |
486 | dev_err(adapter->dev, "could not init channel stats table\n"); | |
487 | goto err_init_fw; | |
488 | } | |
489 | ||
0013c7ce AP |
490 | if (driver_mode) { |
491 | driver_mode &= MWIFIEX_DRIVER_MODE_BITMASK; | |
492 | driver_mode |= MWIFIEX_DRIVER_MODE_STA; | |
493 | } | |
494 | ||
59a4cc25 AK |
495 | rtnl_lock(); |
496 | /* Create station interface by default */ | |
68b76e99 AK |
497 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", |
498 | NL80211_IFTYPE_STATION, NULL, NULL); | |
499 | if (IS_ERR(wdev)) { | |
59a4cc25 | 500 | dev_err(adapter->dev, "cannot create default STA interface\n"); |
bec568ff | 501 | rtnl_unlock(); |
59a4cc25 | 502 | goto err_add_intf; |
5e6e3a92 | 503 | } |
0013c7ce AP |
504 | |
505 | if (driver_mode & MWIFIEX_DRIVER_MODE_UAP) { | |
506 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "uap%d", | |
507 | NL80211_IFTYPE_AP, NULL, NULL); | |
508 | if (IS_ERR(wdev)) { | |
509 | dev_err(adapter->dev, "cannot create AP interface\n"); | |
510 | rtnl_unlock(); | |
511 | goto err_add_intf; | |
512 | } | |
513 | } | |
514 | ||
515 | if (driver_mode & MWIFIEX_DRIVER_MODE_P2P) { | |
516 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d", | |
517 | NL80211_IFTYPE_P2P_CLIENT, NULL, | |
518 | NULL); | |
519 | if (IS_ERR(wdev)) { | |
520 | dev_err(adapter->dev, | |
521 | "cannot create p2p client interface\n"); | |
522 | rtnl_unlock(); | |
523 | goto err_add_intf; | |
524 | } | |
525 | } | |
59a4cc25 AK |
526 | rtnl_unlock(); |
527 | ||
528 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
529 | dev_notice(adapter->dev, "driver_version = %s\n", fmt); | |
530 | goto done; | |
5e6e3a92 | 531 | |
59a4cc25 | 532 | err_add_intf: |
6b41f941 AK |
533 | wiphy_unregister(adapter->wiphy); |
534 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 535 | err_init_fw: |
232fde06 DD |
536 | if (adapter->if_ops.disable_int) |
537 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 538 | err_dnld_fw: |
59a4cc25 | 539 | pr_debug("info: %s: unregister device\n", __func__); |
6b41f941 AK |
540 | if (adapter->if_ops.unregister_dev) |
541 | adapter->if_ops.unregister_dev(adapter); | |
542 | ||
7197325b | 543 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
6b41f941 AK |
544 | pr_debug("info: %s: shutdown mwifiex\n", __func__); |
545 | adapter->init_wait_q_woken = false; | |
546 | ||
547 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
548 | wait_event_interruptible(adapter->init_wait_q, | |
549 | adapter->init_wait_q_woken); | |
550 | } | |
551 | adapter->surprise_removed = true; | |
552 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 553 | init_failed = true; |
5e6e3a92 | 554 | done: |
388ec385 AK |
555 | if (adapter->cal_data) { |
556 | release_firmware(adapter->cal_data); | |
557 | adapter->cal_data = NULL; | |
558 | } | |
c3afd99f AK |
559 | if (adapter->firmware) { |
560 | release_firmware(adapter->firmware); | |
561 | adapter->firmware = NULL; | |
562 | } | |
c3afd99f AK |
563 | if (init_failed) |
564 | mwifiex_free_adapter(adapter); | |
565 | up(sem); | |
59a4cc25 AK |
566 | return; |
567 | } | |
568 | ||
569 | /* | |
570 | * This function initializes the hardware and gets firmware. | |
571 | */ | |
572 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter) | |
573 | { | |
574 | int ret; | |
575 | ||
59a4cc25 AK |
576 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, |
577 | adapter->dev, GFP_KERNEL, adapter, | |
578 | mwifiex_fw_dpc); | |
579 | if (ret < 0) | |
580 | dev_err(adapter->dev, | |
581 | "request_firmware_nowait() returned error %d\n", ret); | |
5e6e3a92 BZ |
582 | return ret; |
583 | } | |
584 | ||
5e6e3a92 BZ |
585 | /* |
586 | * CFG802.11 network device handler for open. | |
587 | * | |
588 | * Starts the data queue. | |
589 | */ | |
590 | static int | |
591 | mwifiex_open(struct net_device *dev) | |
592 | { | |
ea2325b8 JB |
593 | netif_carrier_off(dev); |
594 | ||
5e6e3a92 BZ |
595 | return 0; |
596 | } | |
597 | ||
598 | /* | |
599 | * CFG802.11 network device handler for close. | |
600 | */ | |
601 | static int | |
602 | mwifiex_close(struct net_device *dev) | |
603 | { | |
f162cac8 AK |
604 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
605 | ||
606 | if (priv->scan_request) { | |
607 | dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n"); | |
608 | cfg80211_scan_done(priv->scan_request, 1); | |
609 | priv->scan_request = NULL; | |
75ab753d | 610 | priv->scan_aborting = true; |
f162cac8 AK |
611 | } |
612 | ||
5e6e3a92 BZ |
613 | return 0; |
614 | } | |
615 | ||
e39faa73 SP |
616 | /* |
617 | * Add buffer into wmm tx queue and queue work to transmit it. | |
618 | */ | |
619 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
620 | { | |
47411a06 AP |
621 | struct netdev_queue *txq; |
622 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
623 | ||
624 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
625 | txq = netdev_get_tx_queue(priv->netdev, index); | |
626 | if (!netif_tx_queue_stopped(txq)) { | |
627 | netif_tx_stop_queue(txq); | |
628 | dev_dbg(priv->adapter->dev, "stop queue: %d\n", index); | |
629 | } | |
630 | } | |
631 | ||
e39faa73 | 632 | atomic_inc(&priv->adapter->tx_pending); |
47411a06 | 633 | mwifiex_wmm_add_buf_txqueue(priv, skb); |
e39faa73 | 634 | |
b2713f67 | 635 | mwifiex_queue_main_work(priv->adapter); |
e39faa73 SP |
636 | |
637 | return 0; | |
638 | } | |
639 | ||
18ca4382 | 640 | struct sk_buff * |
808bbebc | 641 | mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv, |
18ca4382 | 642 | struct sk_buff *skb, u8 flag, u64 *cookie) |
808bbebc AK |
643 | { |
644 | struct sk_buff *orig_skb = skb; | |
645 | struct mwifiex_txinfo *tx_info, *orig_tx_info; | |
646 | ||
647 | skb = skb_clone(skb, GFP_ATOMIC); | |
648 | if (skb) { | |
649 | unsigned long flags; | |
650 | int id; | |
651 | ||
652 | spin_lock_irqsave(&priv->ack_status_lock, flags); | |
653 | id = idr_alloc(&priv->ack_status_frames, orig_skb, | |
654 | 1, 0xff, GFP_ATOMIC); | |
655 | spin_unlock_irqrestore(&priv->ack_status_lock, flags); | |
656 | ||
657 | if (id >= 0) { | |
658 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
659 | tx_info->ack_frame_id = id; | |
660 | tx_info->flags |= flag; | |
661 | orig_tx_info = MWIFIEX_SKB_TXCB(orig_skb); | |
662 | orig_tx_info->ack_frame_id = id; | |
663 | orig_tx_info->flags |= flag; | |
18ca4382 AK |
664 | |
665 | if (flag == MWIFIEX_BUF_FLAG_ACTION_TX_STATUS && cookie) | |
666 | orig_tx_info->cookie = *cookie; | |
667 | ||
808bbebc AK |
668 | } else if (skb_shared(skb)) { |
669 | kfree_skb(orig_skb); | |
670 | } else { | |
671 | kfree_skb(skb); | |
672 | skb = orig_skb; | |
673 | } | |
674 | } else { | |
675 | /* couldn't clone -- lose tx status ... */ | |
676 | skb = orig_skb; | |
677 | } | |
678 | ||
679 | return skb; | |
680 | } | |
681 | ||
5e6e3a92 BZ |
682 | /* |
683 | * CFG802.11 network device handler for data transmission. | |
684 | */ | |
685 | static int | |
686 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
687 | { | |
688 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 689 | struct sk_buff *new_skb; |
5e6e3a92 | 690 | struct mwifiex_txinfo *tx_info; |
808bbebc | 691 | bool multicast; |
5e6e3a92 | 692 | |
9da9a3b2 | 693 | dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n", |
f57c1edc | 694 | jiffies, priv->bss_type, priv->bss_num); |
5e6e3a92 BZ |
695 | |
696 | if (priv->adapter->surprise_removed) { | |
b53575ec | 697 | kfree_skb(skb); |
5e6e3a92 BZ |
698 | priv->stats.tx_dropped++; |
699 | return 0; | |
700 | } | |
701 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
702 | dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 703 | kfree_skb(skb); |
5e6e3a92 BZ |
704 | priv->stats.tx_dropped++; |
705 | return 0; | |
706 | } | |
707 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
708 | dev_dbg(priv->adapter->dev, | |
709 | "data: Tx: insufficient skb headroom %d\n", | |
f57c1edc | 710 | skb_headroom(skb)); |
5e6e3a92 BZ |
711 | /* Insufficient skb headroom - allocate a new skb */ |
712 | new_skb = | |
713 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
714 | if (unlikely(!new_skb)) { | |
715 | dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n"); | |
b53575ec | 716 | kfree_skb(skb); |
5e6e3a92 BZ |
717 | priv->stats.tx_dropped++; |
718 | return 0; | |
719 | } | |
720 | kfree_skb(skb); | |
721 | skb = new_skb; | |
722 | dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n", | |
f57c1edc | 723 | skb_headroom(skb)); |
5e6e3a92 BZ |
724 | } |
725 | ||
726 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
d76744a9 | 727 | memset(tx_info, 0, sizeof(*tx_info)); |
9da9a3b2 YAP |
728 | tx_info->bss_num = priv->bss_num; |
729 | tx_info->bss_type = priv->bss_type; | |
a1ed4849 | 730 | tx_info->pkt_len = skb->len; |
47411a06 | 731 | |
808bbebc AK |
732 | multicast = is_multicast_ether_addr(skb->data); |
733 | ||
734 | if (unlikely(!multicast && skb->sk && | |
735 | skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS && | |
736 | priv->adapter->fw_api_ver == MWIFIEX_FW_V15)) | |
737 | skb = mwifiex_clone_skb_for_tx_status(priv, | |
738 | skb, | |
18ca4382 | 739 | MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS, NULL); |
808bbebc | 740 | |
47411a06 AP |
741 | /* Record the current time the packet was queued; used to |
742 | * determine the amount of time the packet was queued in | |
743 | * the driver before it was sent to the firmware. | |
744 | * The delay is then sent along with the packet to the | |
745 | * firmware for aggregate delay calculation for stats and | |
746 | * MSDU lifetime expiry. | |
747 | */ | |
c64800e7 | 748 | __net_timestamp(skb); |
5e6e3a92 | 749 | |
9927baa3 AP |
750 | if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && |
751 | priv->bss_type == MWIFIEX_BSS_TYPE_STA && | |
752 | !ether_addr_equal_unaligned(priv->cfg_bssid, skb->data)) { | |
753 | if (priv->adapter->auto_tdls && priv->check_tdls_tx) | |
754 | mwifiex_tdls_check_tx(priv, skb); | |
755 | } | |
756 | ||
e39faa73 | 757 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
758 | |
759 | return 0; | |
760 | } | |
761 | ||
762 | /* | |
763 | * CFG802.11 network device handler for setting MAC address. | |
764 | */ | |
765 | static int | |
766 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
767 | { | |
768 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 769 | struct sockaddr *hw_addr = addr; |
270e58e8 | 770 | int ret; |
5e6e3a92 BZ |
771 | |
772 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
773 | ||
600f5d90 | 774 | /* Send request to firmware */ |
fa0ecbb9 BZ |
775 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
776 | HostCmd_ACT_GEN_SET, 0, NULL, true); | |
600f5d90 AK |
777 | |
778 | if (!ret) | |
779 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
780 | else | |
f57c1edc YAP |
781 | dev_err(priv->adapter->dev, |
782 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 783 | |
5e6e3a92 BZ |
784 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
785 | ||
600f5d90 | 786 | return ret; |
5e6e3a92 BZ |
787 | } |
788 | ||
789 | /* | |
790 | * CFG802.11 network device handler for setting multicast list. | |
791 | */ | |
792 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
793 | { | |
794 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
795 | struct mwifiex_multicast_list mcast_list; |
796 | ||
797 | if (dev->flags & IFF_PROMISC) { | |
798 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
799 | } else if (dev->flags & IFF_ALLMULTI || | |
800 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
801 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
802 | } else { | |
803 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
804 | mcast_list.num_multicast_addr = |
805 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
806 | } |
807 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
808 | } |
809 | ||
810 | /* | |
811 | * CFG802.11 network device handler for transmission timeout. | |
812 | */ | |
813 | static void | |
814 | mwifiex_tx_timeout(struct net_device *dev) | |
815 | { | |
816 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
817 | ||
5e6e3a92 | 818 | priv->num_tx_timeout++; |
8908c7d5 AN |
819 | priv->tx_timeout_cnt++; |
820 | dev_err(priv->adapter->dev, | |
821 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
822 | jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num); | |
823 | mwifiex_set_trans_start(dev); | |
824 | ||
825 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
826 | priv->adapter->if_ops.card_reset) { | |
827 | dev_err(priv->adapter->dev, | |
828 | "tx_timeout_cnt exceeds threshold. Triggering card reset!\n"); | |
829 | priv->adapter->if_ops.card_reset(priv->adapter); | |
830 | } | |
5e6e3a92 BZ |
831 | } |
832 | ||
11cd07a9 XH |
833 | void mwifiex_dump_drv_info(struct mwifiex_adapter *adapter) |
834 | { | |
835 | void *p; | |
836 | char drv_version[64]; | |
837 | struct usb_card_rec *cardp; | |
838 | struct sdio_mmc_card *sdio_card; | |
839 | struct mwifiex_private *priv; | |
840 | int i, idx; | |
841 | struct netdev_queue *txq; | |
842 | struct mwifiex_debug_info *debug_info; | |
843 | ||
844 | if (adapter->drv_info_dump) { | |
845 | vfree(adapter->drv_info_dump); | |
846 | adapter->drv_info_size = 0; | |
847 | } | |
848 | ||
849 | dev_info(adapter->dev, "=== DRIVER INFO DUMP START===\n"); | |
850 | ||
851 | adapter->drv_info_dump = vzalloc(MWIFIEX_DRV_INFO_SIZE_MAX); | |
852 | ||
853 | if (!adapter->drv_info_dump) | |
854 | return; | |
855 | ||
856 | p = (char *)(adapter->drv_info_dump); | |
857 | p += sprintf(p, "driver_name = " "\"mwifiex\"\n"); | |
858 | ||
859 | mwifiex_drv_get_driver_version(adapter, drv_version, | |
860 | sizeof(drv_version) - 1); | |
861 | p += sprintf(p, "driver_version = %s\n", drv_version); | |
862 | ||
863 | if (adapter->iface_type == MWIFIEX_USB) { | |
864 | cardp = (struct usb_card_rec *)adapter->card; | |
865 | p += sprintf(p, "tx_cmd_urb_pending = %d\n", | |
866 | atomic_read(&cardp->tx_cmd_urb_pending)); | |
867 | p += sprintf(p, "tx_data_urb_pending = %d\n", | |
868 | atomic_read(&cardp->tx_data_urb_pending)); | |
869 | p += sprintf(p, "rx_cmd_urb_pending = %d\n", | |
870 | atomic_read(&cardp->rx_cmd_urb_pending)); | |
871 | p += sprintf(p, "rx_data_urb_pending = %d\n", | |
872 | atomic_read(&cardp->rx_data_urb_pending)); | |
873 | } | |
874 | ||
875 | p += sprintf(p, "tx_pending = %d\n", | |
876 | atomic_read(&adapter->tx_pending)); | |
877 | p += sprintf(p, "rx_pending = %d\n", | |
878 | atomic_read(&adapter->rx_pending)); | |
879 | ||
880 | if (adapter->iface_type == MWIFIEX_SDIO) { | |
881 | sdio_card = (struct sdio_mmc_card *)adapter->card; | |
882 | p += sprintf(p, "\nmp_rd_bitmap=0x%x curr_rd_port=0x%x\n", | |
883 | sdio_card->mp_rd_bitmap, sdio_card->curr_rd_port); | |
884 | p += sprintf(p, "mp_wr_bitmap=0x%x curr_wr_port=0x%x\n", | |
885 | sdio_card->mp_wr_bitmap, sdio_card->curr_wr_port); | |
886 | } | |
887 | ||
888 | for (i = 0; i < adapter->priv_num; i++) { | |
889 | if (!adapter->priv[i] || !adapter->priv[i]->netdev) | |
890 | continue; | |
891 | priv = adapter->priv[i]; | |
892 | p += sprintf(p, "\n[interface : \"%s\"]\n", | |
893 | priv->netdev->name); | |
894 | p += sprintf(p, "wmm_tx_pending[0] = %d\n", | |
895 | atomic_read(&priv->wmm_tx_pending[0])); | |
896 | p += sprintf(p, "wmm_tx_pending[1] = %d\n", | |
897 | atomic_read(&priv->wmm_tx_pending[1])); | |
898 | p += sprintf(p, "wmm_tx_pending[2] = %d\n", | |
899 | atomic_read(&priv->wmm_tx_pending[2])); | |
900 | p += sprintf(p, "wmm_tx_pending[3] = %d\n", | |
901 | atomic_read(&priv->wmm_tx_pending[3])); | |
902 | p += sprintf(p, "media_state=\"%s\"\n", !priv->media_connected ? | |
903 | "Disconnected" : "Connected"); | |
904 | p += sprintf(p, "carrier %s\n", (netif_carrier_ok(priv->netdev) | |
905 | ? "on" : "off")); | |
906 | for (idx = 0; idx < priv->netdev->num_tx_queues; idx++) { | |
907 | txq = netdev_get_tx_queue(priv->netdev, idx); | |
908 | p += sprintf(p, "tx queue %d:%s ", idx, | |
909 | netif_tx_queue_stopped(txq) ? | |
910 | "stopped" : "started"); | |
911 | } | |
912 | p += sprintf(p, "\n%s: num_tx_timeout = %d\n", | |
913 | priv->netdev->name, priv->num_tx_timeout); | |
914 | } | |
915 | ||
809c6ea8 XH |
916 | if (adapter->iface_type == MWIFIEX_SDIO) { |
917 | p += sprintf(p, "\n=== SDIO register DUMP===\n"); | |
918 | if (adapter->if_ops.reg_dump) | |
919 | p += adapter->if_ops.reg_dump(adapter, p); | |
920 | } | |
921 | ||
11cd07a9 XH |
922 | p += sprintf(p, "\n=== MORE DEBUG INFORMATION\n"); |
923 | debug_info = kzalloc(sizeof(*debug_info), GFP_KERNEL); | |
924 | if (debug_info) { | |
925 | for (i = 0; i < adapter->priv_num; i++) { | |
926 | if (!adapter->priv[i] || !adapter->priv[i]->netdev) | |
927 | continue; | |
928 | priv = adapter->priv[i]; | |
929 | mwifiex_get_debug_info(priv, debug_info); | |
930 | p += mwifiex_debug_info_to_buffer(priv, p, debug_info); | |
931 | break; | |
932 | } | |
933 | kfree(debug_info); | |
934 | } | |
935 | ||
936 | adapter->drv_info_size = p - adapter->drv_info_dump; | |
937 | dev_info(adapter->dev, "=== DRIVER INFO DUMP END===\n"); | |
938 | } | |
939 | EXPORT_SYMBOL_GPL(mwifiex_dump_drv_info); | |
940 | ||
5e6e3a92 BZ |
941 | /* |
942 | * CFG802.11 network device handler for statistics retrieval. | |
943 | */ | |
944 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
945 | { | |
946 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
947 | ||
948 | return &priv->stats; | |
949 | } | |
950 | ||
47411a06 | 951 | static u16 |
f663dd9a | 952 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 953 | void *accel_priv, select_queue_fallback_t fallback) |
47411a06 | 954 | { |
fa9ffc74 | 955 | skb->priority = cfg80211_classify8021d(skb, NULL); |
47411a06 AP |
956 | return mwifiex_1d_to_wmm_queue[skb->priority]; |
957 | } | |
958 | ||
5e6e3a92 BZ |
959 | /* Network device handlers */ |
960 | static const struct net_device_ops mwifiex_netdev_ops = { | |
961 | .ndo_open = mwifiex_open, | |
962 | .ndo_stop = mwifiex_close, | |
963 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
964 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
965 | .ndo_tx_timeout = mwifiex_tx_timeout, | |
966 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 967 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 968 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
969 | }; |
970 | ||
971 | /* | |
972 | * This function initializes the private structure parameters. | |
973 | * | |
974 | * The following wait queues are initialized - | |
975 | * - IOCTL wait queue | |
976 | * - Command wait queue | |
977 | * - Statistics wait queue | |
978 | * | |
979 | * ...and the following default parameters are set - | |
980 | * - Current key index : Set to 0 | |
981 | * - Rate index : Set to auto | |
982 | * - Media connected : Set to disconnected | |
983 | * - Adhoc link sensed : Set to false | |
984 | * - Nick name : Set to null | |
985 | * - Number of Tx timeout : Set to 0 | |
986 | * - Device address : Set to current address | |
cbf6e055 | 987 | * - Rx histogram statistc : Set to 0 |
5e6e3a92 BZ |
988 | * |
989 | * In addition, the CFG80211 work queue is also created. | |
990 | */ | |
93a1df48 | 991 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
047eaaf6 | 992 | struct net_device *dev) |
5e6e3a92 BZ |
993 | { |
994 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 995 | dev->destructor = free_netdev; |
5e6e3a92 | 996 | /* Initialize private structure */ |
5e6e3a92 BZ |
997 | priv->current_key_index = 0; |
998 | priv->media_connected = false; | |
ede98bfa AP |
999 | memset(priv->mgmt_ie, 0, |
1000 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
1001 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
1002 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
1003 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
2ade5667 | 1004 | priv->gen_idx = MWIFIEX_AUTO_IDX_MASK; |
5e6e3a92 | 1005 | priv->num_tx_timeout = 0; |
8d05eb22 | 1006 | ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr); |
5e6e3a92 | 1007 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
cbf6e055 XH |
1008 | |
1009 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || | |
1010 | GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { | |
1011 | priv->hist_data = kmalloc(sizeof(*priv->hist_data), GFP_KERNEL); | |
1012 | if (priv->hist_data) | |
1013 | mwifiex_hist_data_reset(priv); | |
1014 | } | |
5e6e3a92 BZ |
1015 | } |
1016 | ||
5e6e3a92 BZ |
1017 | /* |
1018 | * This function check if command is pending. | |
1019 | */ | |
1020 | int is_command_pending(struct mwifiex_adapter *adapter) | |
1021 | { | |
1022 | unsigned long flags; | |
1023 | int is_cmd_pend_q_empty; | |
1024 | ||
1025 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
1026 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
1027 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
1028 | ||
1029 | return !is_cmd_pend_q_empty; | |
1030 | } | |
1031 | ||
6e251174 AP |
1032 | /* |
1033 | * This is the RX work queue function. | |
1034 | * | |
1035 | * It handles the RX operations. | |
1036 | */ | |
1037 | static void mwifiex_rx_work_queue(struct work_struct *work) | |
1038 | { | |
1039 | struct mwifiex_adapter *adapter = | |
1040 | container_of(work, struct mwifiex_adapter, rx_work); | |
1041 | ||
1042 | if (adapter->surprise_removed) | |
1043 | return; | |
1044 | mwifiex_process_rx(adapter); | |
1045 | } | |
1046 | ||
5e6e3a92 BZ |
1047 | /* |
1048 | * This is the main work queue function. | |
1049 | * | |
1050 | * It handles the main process, which in turn handles the complete | |
1051 | * driver operations. | |
1052 | */ | |
1053 | static void mwifiex_main_work_queue(struct work_struct *work) | |
1054 | { | |
1055 | struct mwifiex_adapter *adapter = | |
1056 | container_of(work, struct mwifiex_adapter, main_work); | |
1057 | ||
1058 | if (adapter->surprise_removed) | |
1059 | return; | |
1060 | mwifiex_main_process(adapter); | |
1061 | } | |
1062 | ||
5e6e3a92 BZ |
1063 | /* |
1064 | * This function adds the card. | |
1065 | * | |
1066 | * This function follows the following major steps to set up the device - | |
1067 | * - Initialize software. This includes probing the card, registering | |
1068 | * the interface operations table, and allocating/initializing the | |
1069 | * adapter structure | |
1070 | * - Set up the netlink socket | |
1071 | * - Create and start the main work queue | |
1072 | * - Register the device | |
1073 | * - Initialize firmware and hardware | |
1074 | * - Add logical interfaces | |
1075 | */ | |
1076 | int | |
1077 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 1078 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 1079 | { |
2be7859f | 1080 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
1081 | |
1082 | if (down_interruptible(sem)) | |
1083 | goto exit_sem_err; | |
1084 | ||
93a1df48 | 1085 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
1086 | pr_err("%s: software init failed\n", __func__); |
1087 | goto err_init_sw; | |
1088 | } | |
1089 | ||
d930faee | 1090 | adapter->iface_type = iface_type; |
6b41f941 | 1091 | adapter->card_sem = sem; |
d930faee | 1092 | |
5e6e3a92 | 1093 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
1094 | adapter->surprise_removed = false; |
1095 | init_waitqueue_head(&adapter->init_wait_q); | |
1096 | adapter->is_suspended = false; | |
1097 | adapter->hs_activated = false; | |
1098 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 | 1099 | init_waitqueue_head(&adapter->cmd_wait_q.wait); |
600f5d90 | 1100 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 1101 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 1102 | |
ec4a16b4 | 1103 | if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) { |
6e251174 AP |
1104 | adapter->rx_work_enabled = true; |
1105 | pr_notice("rx work enabled, cpus %d\n", num_possible_cpus()); | |
1106 | } | |
1107 | ||
448a71cc AK |
1108 | adapter->workqueue = |
1109 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
1110 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
5e6e3a92 BZ |
1111 | if (!adapter->workqueue) |
1112 | goto err_kmalloc; | |
1113 | ||
1114 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
6e251174 AP |
1115 | |
1116 | if (adapter->rx_work_enabled) { | |
1117 | adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", | |
1118 | WQ_HIGHPRI | | |
1119 | WQ_MEM_RECLAIM | | |
1120 | WQ_UNBOUND, 1); | |
1121 | if (!adapter->rx_workqueue) | |
1122 | goto err_kmalloc; | |
1123 | ||
1124 | INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); | |
1125 | } | |
1126 | ||
92c2538f AK |
1127 | if (adapter->if_ops.iface_work) |
1128 | INIT_WORK(&adapter->iface_work, adapter->if_ops.iface_work); | |
5e6e3a92 BZ |
1129 | |
1130 | /* Register the device. Fill up the private data structure with relevant | |
232fde06 | 1131 | information from the card. */ |
5e6e3a92 BZ |
1132 | if (adapter->if_ops.register_dev(adapter)) { |
1133 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
1134 | goto err_registerdev; | |
1135 | } | |
1136 | ||
5e6e3a92 BZ |
1137 | if (mwifiex_init_hw_fw(adapter)) { |
1138 | pr_err("%s: firmware init failed\n", __func__); | |
1139 | goto err_init_fw; | |
1140 | } | |
2be7859f | 1141 | |
5e6e3a92 BZ |
1142 | return 0; |
1143 | ||
5e6e3a92 | 1144 | err_init_fw: |
5e6e3a92 | 1145 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
1146 | if (adapter->if_ops.unregister_dev) |
1147 | adapter->if_ops.unregister_dev(adapter); | |
7197325b | 1148 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
5e6e3a92 BZ |
1149 | pr_debug("info: %s: shutdown mwifiex\n", __func__); |
1150 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
1151 | |
1152 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
1153 | wait_event_interruptible(adapter->init_wait_q, |
1154 | adapter->init_wait_q_woken); | |
1155 | } | |
6b41f941 AK |
1156 | err_registerdev: |
1157 | adapter->surprise_removed = true; | |
1158 | mwifiex_terminate_workqueue(adapter); | |
1159 | err_kmalloc: | |
5e6e3a92 BZ |
1160 | mwifiex_free_adapter(adapter); |
1161 | ||
1162 | err_init_sw: | |
1163 | up(sem); | |
1164 | ||
1165 | exit_sem_err: | |
1166 | return -1; | |
1167 | } | |
1168 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
1169 | ||
1170 | /* | |
1171 | * This function removes the card. | |
1172 | * | |
1173 | * This function follows the following major steps to remove the device - | |
1174 | * - Stop data traffic | |
1175 | * - Shutdown firmware | |
1176 | * - Remove the logical interfaces | |
1177 | * - Terminate the work queue | |
1178 | * - Unregister the device | |
1179 | * - Free the adapter structure | |
1180 | */ | |
1181 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
1182 | { | |
1183 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
1184 | int i; |
1185 | ||
1186 | if (down_interruptible(sem)) | |
1187 | goto exit_sem_err; | |
1188 | ||
1189 | if (!adapter) | |
1190 | goto exit_remove; | |
1191 | ||
232fde06 DD |
1192 | /* We can no longer handle interrupts once we start doing the teardown |
1193 | * below. */ | |
1194 | if (adapter->if_ops.disable_int) | |
1195 | adapter->if_ops.disable_int(adapter); | |
1196 | ||
5e6e3a92 BZ |
1197 | adapter->surprise_removed = true; |
1198 | ||
9d2e85e0 MY |
1199 | mwifiex_terminate_workqueue(adapter); |
1200 | ||
5e6e3a92 BZ |
1201 | /* Stop data */ |
1202 | for (i = 0; i < adapter->priv_num; i++) { | |
1203 | priv = adapter->priv[i]; | |
93a1df48 | 1204 | if (priv && priv->netdev) { |
47411a06 | 1205 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
1206 | if (netif_carrier_ok(priv->netdev)) |
1207 | netif_carrier_off(priv->netdev); | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n"); | |
1212 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
1213 | |
1214 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
1215 | wait_event_interruptible(adapter->init_wait_q, |
1216 | adapter->init_wait_q_woken); | |
1217 | dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n"); | |
1218 | if (atomic_read(&adapter->rx_pending) || | |
1219 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 1220 | atomic_read(&adapter->cmd_pending)) { |
5e6e3a92 | 1221 | dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, " |
600f5d90 | 1222 | "cmd_pending=%d\n", |
5e6e3a92 BZ |
1223 | atomic_read(&adapter->rx_pending), |
1224 | atomic_read(&adapter->tx_pending), | |
600f5d90 | 1225 | atomic_read(&adapter->cmd_pending)); |
5e6e3a92 BZ |
1226 | } |
1227 | ||
93a1df48 YAP |
1228 | for (i = 0; i < adapter->priv_num; i++) { |
1229 | priv = adapter->priv[i]; | |
1230 | ||
1231 | if (!priv) | |
1232 | continue; | |
1233 | ||
1234 | rtnl_lock(); | |
4facc34a AP |
1235 | if (priv->netdev && |
1236 | priv->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) | |
1237 | mwifiex_del_virtual_intf(adapter->wiphy, &priv->wdev); | |
93a1df48 YAP |
1238 | rtnl_unlock(); |
1239 | } | |
1240 | ||
c2868ade AK |
1241 | wiphy_unregister(adapter->wiphy); |
1242 | wiphy_free(adapter->wiphy); | |
64b05e2f | 1243 | |
5e6e3a92 BZ |
1244 | /* Unregister device */ |
1245 | dev_dbg(adapter->dev, "info: unregister device\n"); | |
4daffe35 AK |
1246 | if (adapter->if_ops.unregister_dev) |
1247 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
1248 | /* Free adapter structure */ |
1249 | dev_dbg(adapter->dev, "info: free adapter\n"); | |
1250 | mwifiex_free_adapter(adapter); | |
1251 | ||
1252 | exit_remove: | |
1253 | up(sem); | |
1254 | exit_sem_err: | |
1255 | return 0; | |
1256 | } | |
1257 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1258 | ||
1259 | /* | |
1260 | * This function initializes the module. | |
1261 | * | |
1262 | * The debug FS is also initialized if configured. | |
1263 | */ | |
1264 | static int | |
1265 | mwifiex_init_module(void) | |
1266 | { | |
1267 | #ifdef CONFIG_DEBUG_FS | |
1268 | mwifiex_debugfs_init(); | |
1269 | #endif | |
1270 | return 0; | |
1271 | } | |
1272 | ||
1273 | /* | |
1274 | * This function cleans up the module. | |
1275 | * | |
1276 | * The debug FS is removed if available. | |
1277 | */ | |
1278 | static void | |
1279 | mwifiex_cleanup_module(void) | |
1280 | { | |
1281 | #ifdef CONFIG_DEBUG_FS | |
1282 | mwifiex_debugfs_remove(); | |
1283 | #endif | |
1284 | } | |
1285 | ||
1286 | module_init(mwifiex_init_module); | |
1287 | module_exit(mwifiex_cleanup_module); | |
1288 | ||
1289 | MODULE_AUTHOR("Marvell International Ltd."); | |
1290 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1291 | MODULE_VERSION(VERSION); | |
1292 | MODULE_LICENSE("GPL v2"); |